From a8bb78920ba2c67b13983fee4d1f8323100231f0 Mon Sep 17 00:00:00 2001
From: Arnaud CETOUTE <arnaud.cetoute@hotmail.fr>
Date: Tue, 6 Aug 2019 15:58:18 +0200
Subject: [PATCH 1/2] fix(everything): fix ios issues

---
 dist/addons/auto-render.js             |  409 ---
 dist/addons/debug.js                   |  457 ---
 dist/addons/maston.js                  | 2666 ----------------
 dist/addons/outputLatex.js             |  628 ----
 dist/addons/outputMathML.js            |  887 ------
 dist/addons/outputSpokenText.js        |  692 ----
 dist/core/color.js                     |  472 ---
 dist/core/context.js                   |  145 -
 dist/core/definitions.js               | 3777 ----------------------
 dist/core/delimiters.js                |  609 ----
 dist/core/fontMetrics.js               |  363 ---
 dist/core/fontMetricsData.js           | 1759 -----------
 dist/core/grapheme-splitter.js         | 1510 ---------
 dist/core/lexer.js                     |  339 --
 dist/core/mathAtom.js                  | 2395 --------------
 dist/core/mathstyle.js                 |  213 --
 dist/core/parser.js                    | 1643 ----------
 dist/core/span.js                      | 1372 --------
 dist/editor/editor-editableMathlist.js | 4004 ------------------------
 dist/editor/editor-keyboard.js         |  372 ---
 dist/editor/editor-mathfield.js        | 3980 -----------------------
 dist/editor/editor-mathpath.js         |  180 --
 dist/editor/editor-popover.js          |  426 ---
 dist/editor/editor-shortcuts.js        | 1210 -------
 dist/editor/editor-undo.js             |  246 --
 dist/editor/editor-virtualKeyboard.js  | 1357 --------
 dist/editor/l10n.js                    |  243 --
 dist/editor/outputASCIIMath.js         |  284 --
 dist/mathlive.js                       |  918 +-----
 dist/vue-mathlive.js                   |  206 --
 30 files changed, 1 insertion(+), 33761 deletions(-)
 delete mode 100755 dist/addons/auto-render.js
 delete mode 100644 dist/addons/debug.js
 delete mode 100644 dist/addons/maston.js
 delete mode 100644 dist/addons/outputLatex.js
 delete mode 100644 dist/addons/outputMathML.js
 delete mode 100644 dist/addons/outputSpokenText.js
 delete mode 100644 dist/core/color.js
 delete mode 100755 dist/core/context.js
 delete mode 100644 dist/core/definitions.js
 delete mode 100755 dist/core/delimiters.js
 delete mode 100755 dist/core/fontMetrics.js
 delete mode 100755 dist/core/fontMetricsData.js
 delete mode 100644 dist/core/grapheme-splitter.js
 delete mode 100644 dist/core/lexer.js
 delete mode 100644 dist/core/mathAtom.js
 delete mode 100755 dist/core/mathstyle.js
 delete mode 100644 dist/core/parser.js
 delete mode 100644 dist/core/span.js
 delete mode 100644 dist/editor/editor-editableMathlist.js
 delete mode 100644 dist/editor/editor-keyboard.js
 delete mode 100644 dist/editor/editor-mathfield.js
 delete mode 100644 dist/editor/editor-mathpath.js
 delete mode 100644 dist/editor/editor-popover.js
 delete mode 100644 dist/editor/editor-shortcuts.js
 delete mode 100644 dist/editor/editor-undo.js
 delete mode 100644 dist/editor/editor-virtualKeyboard.js
 delete mode 100644 dist/editor/l10n.js
 delete mode 100644 dist/editor/outputASCIIMath.js
 delete mode 100644 dist/vue-mathlive.js

diff --git a/dist/addons/auto-render.js b/dist/addons/auto-render.js
deleted file mode 100755
index 26d00086d..000000000
--- a/dist/addons/auto-render.js
+++ /dev/null
@@ -1,409 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-require("../core/mathAtom.js");
-
-var _definitions = _interopRequireDefault(require("../core/definitions.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/* eslint no-console:0 */
-// eslint-disable-line no-unused-vars
-function findEndOfMath(delimiter, text, startIndex) {
-  // Adapted from
-  // https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx
-  var index = startIndex;
-  var braceLevel = 0;
-  var delimLength = delimiter.length;
-
-  while (index < text.length) {
-    var character = text[index];
-
-    if (braceLevel <= 0 && text.slice(index, index + delimLength) === delimiter) {
-      return index;
-    } else if (character === '\\') {
-      index++;
-    } else if (character === '{') {
-      braceLevel++;
-    } else if (character === '}') {
-      braceLevel--;
-    }
-
-    index++;
-  }
-
-  return -1;
-}
-
-function splitAtDelimiters(startData, leftDelim, rightDelim, mathstyle) {
-  var finalData = [];
-
-  for (var i = 0; i < startData.length; i++) {
-    if (startData[i].type === 'text') {
-      var text = startData[i].data;
-      var lookingForLeft = true;
-      var currIndex = 0;
-      var nextIndex = void 0;
-      nextIndex = text.indexOf(leftDelim);
-
-      if (nextIndex !== -1) {
-        currIndex = nextIndex;
-
-        if (currIndex > 0) {
-          finalData.push({
-            type: 'text',
-            data: text.slice(0, currIndex)
-          });
-        }
-
-        lookingForLeft = false;
-      }
-
-      var done = false;
-
-      while (!done) {
-        if (lookingForLeft) {
-          nextIndex = text.indexOf(leftDelim, currIndex);
-
-          if (nextIndex === -1) {
-            done = true;
-            break;
-          }
-
-          if (currIndex !== nextIndex) {
-            finalData.push({
-              type: 'text',
-              data: text.slice(currIndex, nextIndex)
-            });
-          }
-
-          currIndex = nextIndex;
-        } else {
-          nextIndex = findEndOfMath(rightDelim, text, currIndex + leftDelim.length);
-
-          if (nextIndex === -1) {
-            done = true;
-            break;
-          }
-
-          finalData.push({
-            type: 'math',
-            data: text.slice(currIndex + leftDelim.length, nextIndex),
-            rawData: text.slice(currIndex, nextIndex + rightDelim.length),
-            mathstyle: mathstyle
-          });
-          currIndex = nextIndex + rightDelim.length;
-        }
-
-        lookingForLeft = !lookingForLeft;
-      }
-
-      if (currIndex < text.length) {
-        finalData.push({
-          type: 'text',
-          data: text.slice(currIndex)
-        });
-      }
-    } else {
-      finalData.push(startData[i]);
-    }
-  }
-
-  return finalData;
-}
-
-function splitWithDelimiters(text, delimiters) {
-  var data = [{
-    type: 'text',
-    data: text
-  }];
-
-  for (var i = 0; i < delimiters.inline.length; i++) {
-    var delimiter = delimiters.inline[i];
-    data = splitAtDelimiters(data, delimiter[0], delimiter[1], 'textstyle');
-  }
-
-  for (var _i = 0; _i < delimiters.display.length; _i++) {
-    var _delimiter = delimiters.display[_i];
-    data = splitAtDelimiters(data, _delimiter[0], _delimiter[1], 'displaystyle');
-  }
-
-  return data;
-}
-
-function createMathMLNode(latex, options) {
-  // Create a node for AT (Assistive Technology, e.g. screen reader) to speak, etc.
-  // This node has a style that makes it be invisible to display but is seen by AT
-  var span = document.createElement('span');
-
-  try {
-    span.innerHTML = "<math xmlns='http://www.w3.org/1998/Math/MathML'>" + options.renderToMathML(latex, options) + "</math>";
-  } catch (e) {
-    console.error('Could not convert\'' + latex + '\' to MathML with ', e);
-    span.textContent = latex;
-  }
-
-  span.className = 'sr-only';
-  return span;
-}
-
-function createMarkupNode(text, options, mathstyle, createNodeOnFailure) {
-  // Create a node for displaying math.
-  //   This is slightly ugly because in the case of failure to create the markup,
-  //   sometimes a text node is desired and sometimes not.
-  //   'createTextNodeOnFailure' controls this and null is returned when no node is created.
-  // This node is made invisible to AT (screen readers)
-  var span = document.createElement('span');
-  span.setAttribute('aria-hidden', 'true');
-
-  if (options.preserveOriginalContent) {
-    span.setAttribute('data-' + options.namespace + 'original-content', text);
-
-    if (mathstyle) {
-      span.setAttribute('data-' + options.namespace + 'original-mathstyle', mathstyle);
-    }
-  }
-
-  try {
-    span.innerHTML = options.renderToMarkup(text, mathstyle || 'displaystyle', 'html', options.macros);
-  } catch (e) {
-    console.error('Could not parse\'' + text + '\' with ', e);
-
-    if (createNodeOnFailure) {
-      span = document.createTextNode(text);
-    } else {
-      return null;
-    }
-  }
-
-  return span;
-}
-
-function createAccessibleMarkupPair(text, mathstyle, options, createNodeOnFailure) {
-  // Create a math node (a span with an accessible component and a visual component)
-  // If there is an error in parsing the latex, 'createNodeOnFailure' controls whether
-  //   'null' is returned or an accessible node with the text used.
-  var markupNode = createMarkupNode(text, options, mathstyle, createNodeOnFailure);
-
-  if (markupNode && /\b(mathml|speakable-text)\b/i.test(options.renderAccessibleContent)) {
-    var fragment = document.createDocumentFragment();
-
-    if (/\bmathml\b/i.test(options.renderAccessibleContent) && options.renderToMathML) {
-      fragment.appendChild(createMathMLNode(text, options));
-    }
-
-    if (/\bspeakable-text\b/i.test(options.renderAccessibleContent) && options.renderToSpeakableText) {
-      var span = document.createElement('span');
-      span.innerHTML = options.renderToSpeakableText(text, options);
-      span.className = 'sr-only';
-      fragment.appendChild(span);
-    }
-
-    fragment.appendChild(markupNode);
-    return fragment;
-  }
-
-  return markupNode;
-}
-
-function scanText(text, options) {
-  // If the text starts with '\begin'...
-  // (this is a MathJAX behavior)
-  var fragment = null;
-
-  if (options.TeX.processEnvironments && /^\s*\\begin/.test(text)) {
-    fragment = document.createDocumentFragment();
-    fragment.appendChild(createAccessibleMarkupPair(text, undefined, options, true));
-  } else {
-    var data = splitWithDelimiters(text, options.TeX.delimiters);
-
-    if (data.length === 1 && data[0].type === 'text') {
-      // This text contains no math. No need to continue processing
-      return null;
-    }
-
-    fragment = document.createDocumentFragment();
-
-    for (var i = 0; i < data.length; i++) {
-      if (data[i].type === 'text') {
-        fragment.appendChild(document.createTextNode(data[i].data));
-      } else {
-        fragment.appendChild(createAccessibleMarkupPair(data[i].data, data[i].mathstyle, options, true));
-      }
-    }
-  }
-
-  return fragment;
-}
-
-function scanElement(elem, options) {
-  var originalContent = elem.getAttribute('data-' + options.namespace + 'original-content');
-
-  if (originalContent) {
-    var mathstyle = elem.getAttribute('data-' + options.namespace + 'mathstyle');
-    var span = createAccessibleMarkupPair(originalContent, mathstyle, options, false);
-
-    if (span != null) {
-      elem.textContent = '';
-      elem.appendChild(span);
-    }
-
-    return;
-  }
-
-  if (elem.childNodes.length === 1 && elem.childNodes[0].nodeType === 3) {
-    // This is a node with textual content only. Perhaps an opportunity
-    // to simplify and avoid creating extra nested elements...
-    var text = elem.childNodes[0].textContent;
-
-    if (options.TeX.processEnvironments && /^\s*\\begin/.test(text)) {
-      elem.textContent = '';
-      elem.appendChild(createAccessibleMarkupPair(text, undefined, options, true));
-      return;
-    }
-
-    var data = splitWithDelimiters(text, options.TeX.delimiters);
-
-    if (data.length === 1 && data[0].type === 'math') {
-      // The entire content is a math expression: we can replace the content
-      // with the latex markup without creating additional wrappers.
-      elem.textContent = '';
-      elem.appendChild(createAccessibleMarkupPair(data[0].data, data[0].mathstyle, options, true));
-      return;
-    } else if (data.length === 1 && data[0].type === 'text') {
-      // This element only contained text with no math. No need to
-      // do anything.
-      return;
-    }
-  }
-
-  for (var i = 0; i < elem.childNodes.length; i++) {
-    var childNode = elem.childNodes[i];
-
-    if (childNode.nodeType === 3) {
-      // A text node
-      // Look for math mode delimiters inside the text
-      var frag = scanText(childNode.textContent, options);
-
-      if (frag) {
-        i += frag.childNodes.length - 1;
-        elem.replaceChild(frag, childNode);
-      }
-    } else if (childNode.nodeType === 1) {
-      // An element node
-      var tag = childNode.nodeName.toLowerCase();
-
-      if (tag === 'script' && options.processScriptTypePattern.test(childNode.type)) {
-        var style = 'displaystyle';
-        var _iteratorNormalCompletion = true;
-        var _didIteratorError = false;
-        var _iteratorError = undefined;
-
-        try {
-          for (var _iterator = childNode.type.split(';')[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-            var l = _step.value;
-            var v = l.split('=');
-
-            if (v[0].toLowerCase() === 'mode') {
-              if (v[1].toLoweCase() === 'display') {
-                style = 'displaystyle';
-              } else {
-                style = 'textstyle';
-              }
-            }
-          }
-        } catch (err) {
-          _didIteratorError = true;
-          _iteratorError = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion && _iterator.return != null) {
-              _iterator.return();
-            }
-          } finally {
-            if (_didIteratorError) {
-              throw _iteratorError;
-            }
-          }
-        }
-
-        var _span = createAccessibleMarkupPair(childNode.textContent, style, options, true);
-
-        childNode.parentNode.replaceChild(_span, childNode);
-      } else {
-        // Element node
-        var shouldRender = options.processClassPattern.test(childNode.className) || !(options.skipTags.includes(tag) || options.ignoreClassPattern.test(childNode.className));
-
-        if (shouldRender) {
-          scanElement(childNode, options);
-        }
-      }
-    } // Otherwise, it's something else, and ignore it.
-
-  }
-}
-
-var defaultOptions = {
-  // Optional namespace for the `data-` attributes.
-  namespace: '',
-  // Name of tags whose content will not be scanned for math delimiters
-  skipTags: ['noscript', 'style', 'textarea', 'pre', 'code', 'annotation', 'annotation-xml'],
-  // <script> tags of the following types will be processed. Others, ignored.
-  processScriptType: "math/tex",
-  // Regex pattern of the class name of elements whose contents should not
-  // be processed
-  ignoreClass: "tex2jax_ignore",
-  // Regex pattern of the class name of elements whose contents should
-  // be processed when they appear inside ones that are ignored.
-  processClass: "tex2jax_process",
-  // Indicate whether to preserve or discard the original content of the
-  // elements being rendered in a 'data-original-content' attribute.
-  preserveOriginalContent: true,
-  // Indicate the format to use to render accessible content
-  renderAccessibleContent: 'mathml',
-  TeX: {
-    disabled: false,
-    processEnvironments: true,
-    delimiters: {
-      inline: [['\\(', '\\)']],
-      display: [['$$', '$$'], ['\\[', '\\]']]
-    }
-  }
-};
-
-function renderMathInElement(elem, options) {
-  try {
-    options = Object.assign({}, defaultOptions, options);
-    options.ignoreClassPattern = new RegExp(options.ignoreClass);
-    options.processClassPattern = new RegExp(options.processClass);
-    options.processScriptTypePattern = new RegExp(options.processScriptType);
-    options.macros = _definitions.default.MACROS; // Validate the namespace (used for `data-` attributes)
-
-    if (options.namespace) {
-      if (!/^[a-z]+[-]?$/.test(options.namespace)) {
-        throw Error('options.namespace must be a string of lowercase characters only');
-      }
-
-      if (!/-$/.test(options.namespace)) {
-        options.namespace += '-';
-      }
-    }
-
-    scanElement(elem, options);
-  } catch (e) {
-    if (e instanceof Error) {
-      console.error('renderMathInElement(): ' + e.message);
-    } else {
-      console.error('renderMathInElement(): Could not render math for element ' + elem);
-    }
-  }
-}
-
-var _default = {
-  renderMathInElement: renderMathInElement
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/addons/debug.js b/dist/addons/debug.js
deleted file mode 100644
index 900a0b3ec..000000000
--- a/dist/addons/debug.js
+++ /dev/null
@@ -1,457 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.latexToAsciiMath = latexToAsciiMath;
-exports.asciiMathToLatex = asciiMathToLatex;
-exports.default = void 0;
-
-var _outputASCIIMath = require("../editor/outputASCIIMath.js");
-
-var _lexer = _interopRequireDefault(require("../core/lexer.js"));
-
-var _parser = _interopRequireDefault(require("../core/parser.js"));
-
-var _editorEditableMathlist = require("../editor/editor-editableMathlist.js");
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/**
- * This module contains utilities to debug mathlive internal data structures.
- * 
- * It is also used by the automated test suite.
- * 
- * @module addons/debug
- * @private
- */
-function latexToAsciiMath(latex, mode) {
-  mode = mode || 'math';
-
-  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), mode, null, null);
-
-  return (0, _outputASCIIMath.toASCIIMath)(mathlist);
-}
-
-function asciiMathToLatex(ascii) {
-  return (0, _editorEditableMathlist.parseMathString)(ascii, {
-    format: 'ASCIIMath'
-  });
-}
-/**
- * 
- * @param {object[]} spans 
- * @param {string|number|number[]} symbol specify which span to consider. 
- * If a string, a span whose body match the string
- * If a number, the nth span in the list
- * If an array, each element in the array indicate the nth child to traverse
- * @private
- */
-
-
-function getSymbol(spans, symbol) {
-  if (!spans) return null;
-  var childSymbol = null;
-
-  if (Array.isArray(symbol)) {
-    childSymbol = symbol.slice(); // Clone the array
-
-    symbol = childSymbol.shift(); // Get the first element and remove it from the array
-  }
-
-  var result = null;
-
-  if (typeof symbol === 'number' && symbol < spans.length) {
-    if (childSymbol && childSymbol.length > 0) {
-      return getSymbol(spans[symbol].children, childSymbol);
-    }
-
-    return spans[symbol];
-  } else if (typeof symbol === 'string') {
-    for (var i = 0; i < spans.length; i++) {
-      // Does this span match the symbol we're looking for?
-      if (spans[i].body === symbol) {
-        if (childSymbol && childSymbol.length > 0) {
-          return getSymbol(spans[i].children, childSymbol);
-        }
-
-        return spans[i];
-      } // If not, try its children
-
-
-      result = getSymbol(spans[i].children, symbol);
-      if (result) return result;
-    }
-
-    return result;
-  }
-
-  return null;
-}
-
-function getProp(spans, symbol, prop) {
-  var s = getSymbol(spans, symbol);
-  if (s) return s[prop];
-  return null;
-}
-/**
- * Return the type ('mbin', etc...) of a span
- * @param {Span[]} spans 
- * @param {string} symbol 
- * @return {string}
- * @private
-*/
-
-
-function getType(spans, symbol) {
-  var s = getSymbol(spans, symbol);
-  if (s) return s.type;
-  return null;
-}
-/**
- * Return the tag ('span', 'var', etc...) of a span
- * @param {Span[]} spans 
- * @param {string} symbol 
- * @return {string}
- * @private
-*/
-
-
-function getTag(spans, symbol) {
-  var s = getSymbol(spans, symbol);
-  if (s) return s.tag;
-  return null;
-}
-
-function getStyle(spans, symbol, prop) {
-  var s = getSymbol(spans, symbol);
-  if (s && s.style) return s.style[prop];
-  return null;
-}
-
-function getClasses(spans, symbol) {
-  var s = getSymbol(spans, symbol);
-  if (s) return s.classes || '';
-  return null;
-}
-
-function hasClass(spans, symbol, cls) {
-  var classes = getClasses(spans, symbol);
-  if (!classes) return false;
-  classes = classes.split(' ');
-
-  for (var j = 0; j < classes.length; j++) {
-    if (classes[j] === cls) return true;
-  }
-
-  return false;
-} ////////////////////////////////////////////////////////////////////////////////
-////////////////////////////////////////////////////////////////////////////////
-////////////////////////////////////////////////////////////////////////////////
-
-
-function spanToString(span, indent) {
-  indent = indent || '';
-  var result = '';
-
-  if (Array.isArray(span)) {
-    if (span.length === 0) {
-      result += '[]\n';
-    } else {
-      result += '[\n';
-
-      for (var i = 0; i < span.length; i++) {
-        result += spanToString(span[i], '\t' + indent + i + ',');
-        result += i < span.length - 1 ? ',\n' : '\n';
-      }
-
-      result += indent + ']\n';
-    }
-  } else {
-    result = indent + '{\n';
-
-    if (span.type) {
-      result += indent + 'type:"' + span.type + '",\n';
-    }
-
-    if (span.body && span.body.length > 0) {
-      result += indent + 'body:"' + span.body + '",\n';
-    }
-
-    if (span.classes && span.classes.length > 0) {
-      result += indent + 'classes:"' + span.classes + '",\n';
-    }
-
-    if (span.style) {
-      for (var s in span.style) {
-        if (span.style.hasOwnProperty(s)) {
-          result += indent + s + ':"';
-          result += span.style[s] + '",\n';
-        }
-      }
-    }
-
-    if (span.children && span.children.length > 0) {
-      result += indent + 'children:' + spanToString(span.children, indent);
-    }
-
-    result += indent + '}';
-  }
-
-  return result;
-}
-
-function mathlistPropToString(mathlist, prop, indent) {
-  var value = mathlist[prop];
-
-  if (typeof value === 'string') {
-    return indent + prop + ':"' + value + '",\n';
-  } else if (typeof value === 'boolean') {
-    return indent + prop + ':' + value + ',\n';
-  } else if (typeof value === 'number') {
-    return indent + prop + ':' + value + ',\n';
-  } else if (Array.isArray(value)) {
-    return indent + prop + ':' + mathlistToString(value, indent + '\t') + ',\n';
-  }
-
-  return '';
-}
-
-function mathlistToString(mathlist, indent) {
-  if (!mathlist) return '';
-  indent = indent || '';
-  var result = '';
-
-  if (Array.isArray(mathlist)) {
-    if (mathlist.length === 0) return '';
-    result += '[\n';
-
-    for (var i = 0; i < mathlist.length; i++) {
-      result += mathlistToString(mathlist[i], indent + '\t') + ',\n';
-    }
-
-    result += indent + ']\n';
-  } else {
-    result = indent + '{\n';
-    result += mathlistPropToString(mathlist, 'type', indent);
-    result += mathlistPropToString(mathlist, 'value', indent);
-    result += mathlistPropToString(mathlist, 'fontFamily', indent); // Type 'genfrac'
-
-    result += mathlistPropToString(mathlist, 'hasBarLine', indent);
-    result += mathlistPropToString(mathlist, 'leftDelim', indent);
-    result += mathlistPropToString(mathlist, 'rightDelim', indent);
-    result += mathlistPropToString(mathlist, 'numer', indent);
-    result += mathlistPropToString(mathlist, 'denom', indent); // Type...?
-
-    result += mathlistPropToString(mathlist, 'limits', indent);
-    result += mathlistPropToString(mathlist, 'symbol', indent); // Type 'color'
-
-    result += mathlistPropToString(mathlist, 'framecolor', indent); // Type 'line'
-
-    result += mathlistPropToString(mathlist, 'position', indent); // Type 'mathstyle'
-
-    result += mathlistPropToString(mathlist, 'mathstyle', indent); // Common
-
-    result += mathlistPropToString(mathlist, 'superscript', indent);
-    result += mathlistPropToString(mathlist, 'subscript', indent);
-    result += mathlistPropToString(mathlist, 'body', indent);
-    result += mathlistPropToString(mathlist, 'array', indent);
-    result += indent + '}';
-  }
-
-  return result;
-} ////////////////////////////////////////////////////////////////////////////////
-////////////////////////////////////////////////////////////////////////////////
-////////////////////////////////////////////////////////////////////////////////
-
-
-function spanToMarkup(span, indent) {
-  indent = indent || ''; // if (indent.length === 0) {
-  //     result += '<table>';
-  // }
-
-  var result = '';
-
-  if (Array.isArray(span)) {
-    for (var i = 0; i < span.length; i++) {
-      result += spanToMarkup(span[i], indent);
-    }
-  } else if (span && span.tag !== 'table') {
-    result = '<br>' + indent;
-
-    if (span.classes.includes('fontsize-ensurer')) {
-      result += 'FONTSIZE-ENSURER';
-    } else {
-      if (span.type) {
-        result += '<span class="type">' + span.type + '</span>';
-      }
-
-      if (span.body && span.body.length > 0) {
-        result += '<span class="value">' + span.body + '</span>';
-      }
-
-      if (span.classes && span.classes.length > 0) {
-        result += '&nbsp;<span class="classes">' + span.classes + '</span>';
-      }
-
-      if (span.isTight) {
-        result += '&nbsp;<span class="stylevalue"> tight </span>';
-      }
-
-      if (span.caret) {
-        result += '&nbsp;<span class="stylevalue"> caret </span>';
-      }
-
-      if (span.style) {
-        for (var s in span.style) {
-          if (span.style.hasOwnProperty(s)) {
-            result += '&nbsp;<span class="styleprop">' + s + ':</span>';
-            result += '<span class="stylevalue"> ' + span.style[s] + '</span>;&nbsp;';
-          }
-        }
-      }
-
-      if (span.children) {
-        result += spanToMarkup(span.children, indent + '▷');
-      }
-    }
-  } else if (span) {
-    result += '<br>' + indent + 'table ' + span.array[0].length + '&times;' + span.array.length;
-
-    for (var _i = 0; _i < span.array.length; _i++) {
-      for (var j = 0; j < span.array[_i].length; j++) {
-        result += '<br>' + indent + '[' + (_i + 1) + ', ' + (j + 1) + '] ';
-        result += spanToMarkup(span.array[_i][j], '');
-      }
-    }
-  }
-
-  return result;
-}
-
-function mathListColorToMarkup(mathlist, propname) {
-  var result = '';
-
-  if (mathlist[propname]) {
-    result += '<span class="styleprop">' + propname + '=</span>';
-    result += '<span style="font-size:2em;vertical-align:middle;color:' + mathlist[propname] + '">&#9632;</span>';
-    result += '<span class="stylevalue">';
-    result += mathlist[propname];
-    result += '</span>';
-  }
-
-  return result;
-}
-
-function mathListPropToMarkup(mathlist, propname) {
-  var result = '';
-
-  if (mathlist[propname]) {
-    result += '<span class="styleprop">' + propname + '=</span>';
-    result += '<span class="stylevalue">';
-    result += mathlist[propname];
-    result += '</span>" ';
-  }
-
-  return result;
-}
-
-function mathlistToMarkup(mathlist, indent) {
-  if (!mathlist) return '';
-  indent = indent || '';
-  var result = '';
-
-  if (Array.isArray(mathlist)) {
-    for (var i = 0; i < mathlist.length; i++) {
-      result += mathlistToMarkup(mathlist[i], i + '.' + indent);
-    }
-  } else {
-    result = '<br>' + indent;
-
-    if (mathlist.type) {
-      result += '<span class="type';
-      result += mathlist.isSelected ? ' selected' : '';
-      result += mathlist.caret ? ' caret' : '';
-      result += '">' + mathlist.type + (mathlist.caret ? ' caret ' : '') + '</span>';
-    }
-
-    if (typeof mathlist.body === 'string' && mathlist.body.length > 0) {
-      result += '&nbsp;<span class="value">';
-      result += mathlist.body;
-
-      if (mathlist.body.charCodeAt(0) < 32 || mathlist.body.charCodeAt(0) > 127) {
-        result += '&nbsp;U+' + ('000000' + mathlist.body.charCodeAt(0).toString(16)).substr(-6);
-      }
-
-      result += '</span>&nbsp;';
-    }
-
-    if (mathlist.fontFamily === 'mathrm') {
-      result += '<span style="opacity:.2">';
-      result += mathListPropToMarkup(mathlist, 'fontFamily');
-      result += '</span>';
-    } else {
-      result += mathListPropToMarkup(mathlist, 'fontFamily');
-    } // Type 'genfrac'
-
-
-    result += mathListPropToMarkup(mathlist, 'hasBarLine');
-    result += mathListPropToMarkup(mathlist, 'leftDelim');
-    result += mathListPropToMarkup(mathlist, 'rightDelim');
-    result += mathListPropToMarkup(mathlist, 'continuousFraction'); // Type...?
-
-    result += mathListPropToMarkup(mathlist, 'limits');
-    result += mathListPropToMarkup(mathlist, 'symbol'); // Type 'color'
-
-    result += mathListColorToMarkup(mathlist, 'framecolor'); // Type 'mathstyle'
-
-    result += mathListPropToMarkup(mathlist, 'mathstyle'); // Type 'sizeddelim'
-
-    result += mathListPropToMarkup(mathlist, 'size');
-    result += mathListPropToMarkup(mathlist, 'cls');
-    result += mathListPropToMarkup(mathlist, 'delim'); // Type 'rule'
-
-    result += mathListPropToMarkup(mathlist, 'shift');
-    result += mathListPropToMarkup(mathlist, 'width');
-    result += mathListPropToMarkup(mathlist, 'height'); // Type 'line'
-
-    result += mathListPropToMarkup(mathlist, 'position'); // Type 'overunder'
-
-    result += mathlistToMarkup(mathlist.overscript, indent + '↑');
-    result += mathlistToMarkup(mathlist.underscript, indent + '↓');
-    result += mathlistToMarkup(mathlist.superscript, indent + '↑');
-    result += mathlistToMarkup(mathlist.subscript, indent + '↓');
-    result += mathlistToMarkup(mathlist.body, indent + '▶');
-    result += mathlistToMarkup(mathlist.numer, indent + "\u25B2");
-    result += mathlistToMarkup(mathlist.denom, indent + "\u25BC");
-
-    if (mathlist.array) {
-      for (var _i2 = 0; _i2 < mathlist.array.length; _i2++) {
-        result += '<br>' + indent + "\u2317 row " + (_i2 + 1) + '/' + mathlist.array.length;
-
-        for (var j = 0; j < mathlist.array[_i2].length; j++) {
-          result += mathlistToMarkup(mathlist.array[_i2][j], indent + "\u2317\u232A");
-        }
-      }
-    }
-  }
-
-  return result;
-} // Export the public interface for this module
-
-
-var _default = {
-  mathlistToMarkup: mathlistToMarkup,
-  spanToMarkup: spanToMarkup,
-  mathlistToString: mathlistToString,
-  spanToString: spanToString,
-  hasClass: hasClass,
-  getClasses: getClasses,
-  getProp: getProp,
-  getStyle: getStyle,
-  getType: getType,
-  getTag: getTag,
-  latexToAsciiMath: latexToAsciiMath,
-  asciiMathToLatex: asciiMathToLatex
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/addons/maston.js b/dist/addons/maston.js
deleted file mode 100644
index 575b0b380..000000000
--- a/dist/addons/maston.js
+++ /dev/null
@@ -1,2666 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _lexer = _interopRequireDefault(require("../core/lexer.js"));
-
-var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
-
-var _parser = _interopRequireDefault(require("../core/parser.js"));
-
-var _definitions = _interopRequireDefault(require("../core/definitions.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
-
-function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
-
-function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
-
-function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
-
-function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }
-
-function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
-
-function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
-
-function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
-
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-var CANONICAL_NAMES = {
-  // CONSTANTS
-  '\\imaginaryI': "\u2148",
-  '\\imaginaryJ': "\u2149",
-  '\\pi': 'π',
-  '\\exponentialE': "\u212F",
-  // ARITHMETIC
-  '﹢': '+',
-  // SMALL PLUS SIGN
-  '＋': '+',
-  // FULL WIDTH PLUS SIGN
-  '−': '-',
-  // MINUS SIGN
-  '-': '-',
-  // HYPHEN-MINUS
-  '﹣': '-',
-  // SMALL HYPHEN-MINUS
-  '－': '-',
-  // FULLWIDTH HYPHEN-MINUS
-  '\\times': '*',
-  '\\cdot': '*',
-  '⨉': '*',
-  // N-ARY TIMES OPERATOR U+
-  '️✖': '*',
-  // MULTIPLICATION SYMBOL
-  '️×': '*',
-  // MULTIPLICATION SIGN
-  '.': '*',
-  '÷': '/',
-  // DIVISION SIGN
-  // '/':             '/',        // SOLIDUS
-  '⁄': '/',
-  // FRACTION SLASH
-  '／': '/',
-  // FULLWIDTH SOLIDUS
-  '!': 'factorial',
-  '\\mp': 'minusplus',
-  // MINUS-PLUS SIGN
-  '\\ne': '!=',
-  '\\coloneq': ':=',
-  '\\questeq': '?=',
-  '\\approx': 'approx',
-  '\\cong': 'congruent',
-  '\\sim': 'similar',
-  '\\equiv': 'equiv',
-  '\\pm': 'plusminus',
-  // PLUS-MINUS SIGN
-  '\\land': 'and',
-  '\\wedge': 'and',
-  '\\lor': 'or',
-  '\\vee': 'or',
-  '\\oplus': 'xor',
-  '\\veebar': 'xor',
-  '\\lnot': 'not',
-  '\\neg': 'not',
-  '\\exists': 'exists',
-  '\\nexists': '!exists',
-  '\\forall': 'forAll',
-  '\\backepsilon': 'suchThat',
-  '\\therefore': 'therefore',
-  '\\because': 'because',
-  '\\nabla': 'nabla',
-  '\\circ': 'circle',
-  // '\\oplus':       'oplus',
-  '\\ominus': 'ominus',
-  '\\odot': 'odot',
-  '\\otimes': 'otimes',
-  '\\zeta': 'Zeta',
-  '\\Gamma': 'Gamma',
-  '\\min': 'min',
-  '\\max': 'max',
-  '\\mod': 'mod',
-  '\\lim': 'lim',
-  // BIG OP
-  '\\sum': 'sum',
-  '\\prod': 'prod',
-  '\\int': 'integral',
-  '\\iint': 'integral2',
-  '\\iiint': 'integral3',
-  '\\Re': 'Re',
-  '\\gothicCapitalR': 'Re',
-  '\\Im': 'Im',
-  '\\gothicCapitalI': 'Im',
-  '\\binom': 'nCr',
-  '\\partial': 'partial',
-  '\\differentialD': 'differentialD',
-  '\\capitalDifferentialD': 'capitalDifferentialD',
-  '\\Finv': 'Finv',
-  '\\Game': 'Game',
-  '\\wp': 'wp',
-  '\\ast': 'ast',
-  '\\star': 'star',
-  '\\asymp': 'asymp',
-  // Function domain, limits
-  '\\to': 'to',
-  // Looks like \rightarrow
-  '\\gets': 'gets',
-  // Looks like \leftarrow
-  // Logic
-  '\\rightarrow': 'shortLogicalImplies',
-  '\\leftarrow': 'shortLogicalImpliedBy',
-  '\\leftrightarrow': 'shortLogicalEquivalent',
-  '\\longrightarrow': 'logicalImplies',
-  '\\longleftarrow': 'logicalImpliedBy',
-  '\\longleftrightarrow': 'logicalEquivalent',
-  // Metalogic
-  '\\Rightarrow': 'shortImplies',
-  '\\Leftarrow': 'shortImpliedBy',
-  '\\Leftrightarrow': 'shortEquivalent',
-  '\\implies': 'implies',
-  '\\Longrightarrow': 'implies',
-  '\\impliedby': 'impliedBy',
-  '\\Longleftarrow': 'impliedBy',
-  '\\iff': 'equivalent',
-  '\\Longleftrightarrow': 'equivalent' // The OP_NAME table maps a canonical name to a function name
-
-};
-var OP_NAME = {
-  '+': 'add',
-  '*': 'multiply',
-  '-': 'subtract',
-  '/': 'divide',
-  '=': 'equal',
-  ':=': 'assign',
-  '!=': 'ne',
-  '?=': 'questeq',
-  'approx': 'approx',
-  'congruent': 'congruent',
-  'similar': 'similar',
-  'equiv': 'equiv',
-  '<': 'lt',
-  '>': 'gt',
-  '<=': 'le',
-  '>=': 'ge',
-  '≤': 'le',
-  '≥': 'ge',
-  '>>': 'gg',
-  '<<': 'll',
-  '**': 'pow',
-  '++': 'increment',
-  '--': 'decrement' // The FUNCTION_TEMPLATE table maps a canonical name to a LaTeX template
-
-};
-var FUNCTION_TEMPLATE = {
-  'equal': '%0 = %1',
-  'ne': '%0 \\ne %1',
-  'questeq': '%0 \\questeq %1',
-  'approx': '%0 \\approx %1',
-  'congruent': '%0 \\cong %1',
-  'similar': '%0 \\sim %1',
-  'equiv': '%0 \\equiv %1',
-  'assign': '%0 := %1',
-  'lt': '%0 < %1',
-  'gt': '%0 > %1',
-  'le': '%0 \\le %1',
-  'ge': '%0 \\ge %1',
-  // TRIGONOMETRY
-  'sin': '\\sin%_%^ %0',
-  'cos': '\\cos%_%^ %0',
-  'tan': '\\tan%_%^ %0',
-  'cot': '\\cot%_%^ %0',
-  'sec': '\\sec%_%^ %0',
-  'csc': '\\csc%_%^ %0',
-  'sinh': '\\sinh %0',
-  'cosh': '\\cosh %0',
-  'tanh': '\\tanh %0',
-  'csch': '\\csch %0',
-  'sech': '\\sech %0',
-  'coth': '\\coth %0',
-  'arcsin': '\\arcsin %0',
-  'arccos': '\\arccos %0',
-  'arctan': '\\arctan %0',
-  'arccot': '\\arcctg %0',
-  // Check
-  'arcsec': '\\arcsec %0',
-  'arccsc': '\\arccsc %0',
-  'arsinh': '\\arsinh %0',
-  'arcosh': '\\arcosh %0',
-  'artanh': '\\artanh %0',
-  'arcsch': '\\arcsch %0',
-  'arsech': '\\arsech %0',
-  'arcoth': '\\arcoth %0',
-  // LOGARITHMS
-  'ln': '\\ln%_%^ %',
-  // Natural logarithm
-  'log': '\\log%_%^ %',
-  // General logarithm, e.g. log_10
-  'lg': '\\lg %',
-  // Common, base-10, logarithm
-  'lb': '\\lb %',
-  // Binary, base-2, logarithm
-  // Big operator
-  'sum': '\\sum%_%^ %0',
-  'prod': '\\prod%_%^ %0',
-  // OTHER
-  'Zeta': '\\zeta%_%^ %',
-  // Riemann Zeta function
-  'Gamma': '\\Gamma %',
-  // Gamma function, such that Gamma(n) = (n - 1)!
-  'min': '\\min%_%^ %',
-  'max': '\\max%_%^ %',
-  'mod': '\\mod%_%^ %',
-  'lim': '\\lim%_%^ %',
-  // BIG OP
-  'binom': '\\binom %',
-  'nabla': '\\nabla %',
-  'curl': '\\nabla\\times %0',
-  'div': '\\nabla\\cdot %0',
-  'floor': '\\lfloor %0 \\rfloor%_%^',
-  'ceil': '\\lceil %0 \\rceil%_%^',
-  'abs': '\\left| %0 \\right|%_%^',
-  'norm': '\\lVert %0 \\rVert%_%^',
-  'ucorner': "\\ulcorner %0 \\urcorner%_%^",
-  'lcorner': '\\llcorner %0 \\lrcorner%_%^',
-  'angle': '\\langle %0 \\rangle%_%^',
-  'group': '\\lgroup %0 \\rgroup%_%^',
-  'moustache': '\\lmoustache %0 \\rmoustache%_%^',
-  'brace': '\\lbrace %0 \\rbrace%_%^',
-  'sqrt[]': '\\sqrt[%^]{%0}',
-  // Template used when there's an index
-  'sqrt': '\\sqrt{%0}',
-  'lcm': '\\operatorname{lcm}%',
-  'gcd': '\\operatorname{gcd}%',
-  'erf': '\\operatorname{erf}%',
-  'erfc': '\\operatorname{erfc}%',
-  'randomReal': '\\operatorname{randomReal}%',
-  'randomInteger': '\\operatorname{randomInteger}%',
-  // Logic operators
-  'and': '%0 \\land %1',
-  'or': '%0 \\lor %1',
-  'xor': '%0 \\oplus %1',
-  'not': '%0 \\lnot %1',
-  // Other operators
-  'circle': '%0 \\circ %1',
-  'ast': '%0 \\ast %1',
-  'star': '%0 \\star %1',
-  'asymp': '%0 \\asymp %1',
-  '/': '\\frac{%0}{%1}',
-  'Re': '\\Re{%0}',
-  'Im': '\\Im{%0}',
-  'factorial': '%0!',
-  'factorial2': '%0!!' // From www.w3.org/TR/MathML3/appendixc.html
-  // The keys of OP_PRECEDENCE are "canonical names" 
-  // (the values of the CANONICAL_NAMES table above, e.g. "?=")
-  // Those are different from the latex names (e.g. \\questeq)
-  // and from the function names (e.g. "questeq")
-
-};
-var OP_PRECEDENCE = {
-  'degree': 880,
-  'nabla': 740,
-  'curl': 740,
-  // not in MathML
-  'partial': 740,
-  'differentialD': 740,
-  // not in MathML
-  'capitalDifferentialD': 740,
-  // not in MathML
-  '**': 720,
-  // not in MathML
-  'odot': 710,
-  // Logical not
-  'not': 680,
-  // Division
-  'div': 660,
-  // division sign
-  'solidus': 660,
-  '/': 660,
-  'setminus': 650,
-  // \setminus, \smallsetminus
-  '%': 640,
-  'otimes': 410,
-  // Set operators
-  'union': 350,
-  // \cup
-  'intersection': 350,
-  // \cap
-  // Multiplication, division and modulo
-  '*': 390,
-  'ast': 390,
-  '.': 390,
-  'oplus': 300,
-  // also logical XOR... @todo
-  'ominus': 300,
-  // Addition
-  '+': 275,
-  '-': 275,
-  '+-': 275,
-  // \pm
-  '-+': 275,
-  // \mp
-  // Most circled-ops are 265
-  'circle': 265,
-  'circledast': 265,
-  'circledcirc': 265,
-  'star': 265,
-  // Different from ast
-  // Range
-  '..': 263,
-  // Not in MathML
-  // Unit conversion
-  'to': 262,
-  // Not in MathLM
-  'in': 262,
-  // Not in MathML
-  '|': 261,
-  // Not in MathML    (bind is the |_ operator)
-  // Relational
-  'congruent': 265,
-  'equiv': 260,
-  // MathML: "identical to"
-  '=': 260,
-  '!=': 255,
-  '?=': 255,
-  'similar': 250,
-  // tilde operator in MathML
-  'approx': 247,
-  '<': 245,
-  '>': 243,
-  '>=': 242,
-  '≥': 242,
-  '<=': 241,
-  // Set operator
-  'complement': 240,
-  'subset': 240,
-  // \subset
-  'superset': 240,
-  // \supset
-  // @todo and equality and neg operators
-  'elementof': 240,
-  // \in
-  '!elementof': 240,
-  // \notin
-  //
-  'exists': 230,
-  '!exists': 230,
-  'forall': 230,
-  // Logical operators
-  'and': 200,
-  'xor': 195,
-  // MathML had 190
-  'or': 190,
-  // Note: 'not' is 680
-  // center, low, diag, vert ellipsis         150
-  // Composition/sequence
-  'suchThat': 110,
-  // \backepsilon
-  ':': 100,
-  // '..':               100,
-  // '...':               100,
-  // Conditional (?:)
-  // Assignment
-  'assign': 80,
-  ':=': 80,
-  // MathML had 260 (same with U+2254 COLON EQUALS)
-  'therefore': 70,
-  'because': 70,
-  // Arrows
-  // Note: MathML had 270 for the arrows, but this
-  // would not work for (a = b => b = a)
-  // See also https://en.wikipedia.org/wiki/Logical_connective#Order_of_precedence
-  // for a suggested precedence (note that in this page lower precedence
-  // has the opposite meaning as what we use)
-  'shortLogicalImplies': 52,
-  // ->
-  'shortImplies': 51,
-  // =>
-  'logicalImplies': 50,
-  // -->
-  'implies': 49,
-  // ==>
-  'shortLogicalImpliedBy': 48,
-  // <-
-  'shortImpliedBy': 47,
-  // <=
-  'logicalImpliedBy': 46,
-  // <--
-  'impliedBy': 45,
-  // <==
-  'shortLogicalEquivalent': 44,
-  // <->
-  'shortEquivalent': 43,
-  // <=>
-  'logicalEquivalent': 42,
-  // <-->
-  'equivalent': 41,
-  // <==>
-  ',': 40,
-  ';': 30
-};
-
-function getArg(ast, index) {
-  return Array.isArray(ast.arg) ? ast.arg[index] : undefined;
-}
-/**
- * Given a canonical name, return its precedence
- * @param {string} canonicalName, for example "and"
- * @return {number}
- */
-
-
-function getPrecedence(canonicalName) {
-  return canonicalName ? OP_PRECEDENCE[canonicalName] || -1 : -1;
-}
-
-function getAssociativity(canonicalName) {
-  if (/=|=>/.test(canonicalName)) {
-    return 'right';
-  }
-
-  return 'left';
-}
-/**
- *
- * @param {string} name function canonical name
- * @return {string}
- */
-
-
-function getLatexTemplateForFunction(name) {
-  var result = FUNCTION_TEMPLATE[name];
-
-  if (!result) {
-    result = name.length > 1 ? '\\operatorname{' + name + '}%^%_ %' : name + '%^%_ %';
-  }
-
-  return result;
-}
-/**
- *
- * @param {string} name symbol name, e.g. "alpha"
- * @return {string}
- */
-
-
-function getLatexForSymbol(name) {
-  var result = FUNCTION_TEMPLATE[name];
-
-  if (result) {
-    return result.replace('%1', '').replace('%0', '').replace('%', '');
-  }
-
-  if (name.length > 1) {
-    var info = _definitions.default.getInfo('\\' + name, 'math');
-
-    if (info && (!info.fontFamily || info.fontFamily === 'cmr' || info.fontFamily === 'ams')) {
-      result = '\\' + name;
-    }
-  }
-
-  if (!result) {
-    result = _definitions.default.unicodeStringToLatex('math', name);
-  }
-
-  return result;
-}
-
-function isFunction(canonicalName) {
-  if (canonicalName === 'f' || canonicalName === 'g') return true;
-  var t = FUNCTION_TEMPLATE[canonicalName];
-  if (!t) return false; // A plain "%" is a placeholder for an argument list, indicating a function
-
-  if (/%[^01_^]?/.test(t)) return true;
-  return false;
-}
-/**
- *
- * @param {string} latex, for example '\\times'
- * @return {string} the canonical name for the input, for example '*'
- */
-
-
-function getCanonicalName(latex) {
-  latex = (latex || '').trim();
-  var result = CANONICAL_NAMES[latex];
-
-  if (!result) {
-    if (/^\\[^{}]+$/.test(latex)) {
-      var info = _definitions.default.getInfo(latex, 'math', {});
-
-      if (info) {
-        result = info.value || latex.slice(1);
-      } else {
-        result = latex.slice(1);
-      }
-    } else {
-      result = latex;
-    }
-  }
-
-  return result;
-}
-/**
- * Return the operator precedence of the atom
- * or -1 if not an operator
- * @param {object} atom
- * @return {number}
- */
-
-
-function opPrec(atom) {
-  if (!atom) return null;
-  var name = getCanonicalName(getString(atom));
-  var result = [getPrecedence(name), getAssociativity(name)];
-  if (result[0] <= 0) return null;
-  return result;
-}
-
-function isOperator(atom) {
-  return opPrec(atom) !== null;
-}
-
-var DELIM_FUNCTION = {
-  '\\lfloor\\rfloor': 'floor',
-  '\\lceil\\rceil': 'ceil',
-  '\\vert\\vert': 'abs',
-  '\\lvert\\rvert': 'abs',
-  '||': 'abs',
-  '\\Vert\\Vert': 'norm',
-  '\\lVert\\rVert': 'norm',
-  "\\ulcorner\\urcorner": 'ucorner',
-  '\\llcorner\\lrcorner': 'lcorner',
-  '\\langle\\rangle': 'angle',
-  '\\lgroup\\rgroup': 'group',
-  '\\lmoustache\\rmoustache': 'moustache',
-  '\\lbrace\\rbrace': 'brace'
-};
-var POSTFIX_FUNCTION = {
-  '!': 'factorial',
-  '\\dag': 'dagger',
-  '\\dagger': 'dagger',
-  '\\ddagger': 'dagger2',
-  '\\maltese': 'maltese',
-  '\\backprime': 'backprime',
-  '\\backdoubleprime': 'backprime2',
-  '\\prime': 'prime',
-  '\\doubleprime': 'prime2',
-  '\\$': '$',
-  '\\%': '%',
-  '\\_': '_',
-  '\\degree': 'degree'
-};
-var ASSOCIATIVE_FUNCTION = {
-  '+': 'add',
-  '-': 'add',
-  // Subtraction is add(), but it's
-  // handled specifically so that the
-  // argument is negated
-  '*': 'multiply',
-  '=': 'equal',
-  ',': 'list',
-  ';': 'list2',
-  'and': 'and',
-  'or': 'or',
-  'xor': 'xor',
-  'union': 'union',
-  // shortLogicalEquivalent and logicalEquivalent map to the same function
-  // they mean the same thing, but have a difference precedence.
-  'shortLogicalEquivalent': 'logicalEquivalent',
-  // logical equivalent, iff, biconditional logical connective
-  'logicalEquivalent': 'logicalEquivalent',
-  // same
-  // shortEquivalent and equivalent map to the same function
-  // they mean the same thing, but have a difference precedence.
-  'shortEquivalent': 'equivalent',
-  // metalogic equivalent
-  'equivalent': 'equivalent' // same
-
-};
-var SUPER_ASSOCIATIVE_FUNCTION = {
-  ',': 'list',
-  ';': 'list2'
-};
-
-function getString(atom) {
-  if (Array.isArray(atom)) {
-    var result = '';
-    var _iteratorNormalCompletion = true;
-    var _didIteratorError = false;
-    var _iteratorError = undefined;
-
-    try {
-      for (var _iterator = atom[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-        var subAtom = _step.value;
-        result += getString(subAtom);
-      }
-    } catch (err) {
-      _didIteratorError = true;
-      _iteratorError = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion && _iterator.return != null) {
-          _iterator.return();
-        }
-      } finally {
-        if (_didIteratorError) {
-          throw _iteratorError;
-        }
-      }
-    }
-
-    return result;
-  }
-
-  if (atom.latex && !/^\\math(op|bin|rel|open|punct|ord|inner)/.test(atom.latex)) {
-    return atom.latex.trim();
-  }
-
-  if (atom.type === 'leftright') {
-    return '';
-  }
-
-  if (typeof atom.body === 'string') {
-    return atom.body;
-  }
-
-  if (Array.isArray(atom.body)) {
-    var _result = '';
-    var _iteratorNormalCompletion2 = true;
-    var _didIteratorError2 = false;
-    var _iteratorError2 = undefined;
-
-    try {
-      for (var _iterator2 = atom.body[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-        var _subAtom = _step2.value;
-        _result += getString(_subAtom);
-      }
-    } catch (err) {
-      _didIteratorError2 = true;
-      _iteratorError2 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-          _iterator2.return();
-        }
-      } finally {
-        if (_didIteratorError2) {
-          throw _iteratorError2;
-        }
-      }
-    }
-
-    return _result;
-  }
-
-  return '';
-}
-/**
- *
- * @param {object} expr - Abstract Syntax Tree object
- * @return {string} A string, the symbol, or undefined
- */
-
-
-function asSymbol(node) {
-  return typeof node.sym === 'string' ? getLatexForSymbol(node.sym) || node.sym : '';
-}
-/**
- *
- * @param {object} node - Abstract Syntax Tree node
- * @return {number} A JavaScript number, the value of the AST or NaN
- * @private
- */
-
-
-function asMachineNumber(node) {
-  return parseFloat(node.num);
-}
-
-function isNumber(node) {
-  return _typeof(node) === 'object' && typeof node.num !== 'undefined';
-}
-
-function numberRe(node) {
-  var result = 0;
-
-  if (isNumber(node)) {
-    if (_typeof(node.num) === 'object') {
-      result = typeof node.num.re !== 'undefined' ? parseFloatToPrecision(node.num.re) : 0;
-    } else {
-      result = parseFloat(node.num);
-    }
-  }
-
-  return result;
-}
-
-function numberIm(node) {
-  var result = 0;
-
-  if (isNumber(node)) {
-    if (_typeof(node.num) === 'object') {
-      result = typeof node.num.im !== 'undefined' ? parseFloatToPrecision(node.num.im) : 0;
-    }
-  }
-
-  return result;
-}
-
-function isComplexWithRealAndImaginary(node) {
-  return numberRe(node) !== 0 && numberIm(node) !== 0;
-}
-
-function hasSup(node) {
-  return node && typeof node.sup !== 'undefined';
-}
-
-function hasSub(node) {
-  return node && typeof node.sub !== 'undefined';
-}
-/**
- * Return true if the current atom is of the specified type and value.
- * @param {object} expr
- * @param {string} type
- * @param {string} value
- */
-
-
-function isAtom(expr, type, value) {
-  var result = false;
-  var atom = expr.atoms[expr.index];
-
-  if (atom && atom.type === type) {
-    if (value === undefined) {
-      result = true;
-    } else {
-      result = getString(atom) === value;
-    }
-  }
-
-  return result;
-}
-/**
- * 
- * @param {string} functionName 
- * @param {object} params 
- */
-
-
-function wrapFn(functionName) {
-  var result = {
-    fn: functionName
-  };
-
-  for (var _len = arguments.length, params = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-    params[_key - 1] = arguments[_key];
-  }
-
-  if (params) {
-    var args = [];
-
-    for (var _i = 0, _params = params; _i < _params.length; _i++) {
-      var arg = _params[_i];
-      if (arg) args.push(arg);
-    }
-
-    if (args.length > 0) result.arg = args;
-  }
-
-  return result;
-}
-
-function wrapNum(num) {
-  if (typeof num === 'number') {
-    return {
-      num: num.toString()
-    };
-  } else if (typeof num === 'string') {
-    return {
-      num: num
-    };
-  } else if (_typeof(num) === 'object') {
-    // This is a complex number
-    console.assert(typeof num.re === 'string' || typeof num.im === 'string');
-    return {
-      num: num
-    };
-  }
-
-  return undefined;
-}
-/**
- * Return the negative of the expression. Usually { fn:'negate', arg }
- * but for numbers, the negated number
- * @param {object} node
- */
-
-
-function negate(node) {
-  if (isNumber(node)) {
-    var re = numberRe(node);
-    var im = numberIm(node);
-
-    if (im !== 0) {
-      if (re !== 0) {
-        node.num.re = (-re).toString();
-      }
-
-      node.num.im = (-im).toString();
-    } else {
-      node.num = (-re).toString();
-    }
-
-    return node;
-  }
-
-  return wrapFn('negate', node);
-}
-
-function nextIsSupsub(expr) {
-  var atom = expr.atoms[expr.index + 1];
-  return atom && atom.type === 'msubsup';
-}
-/**
- * Parse for a possible sup/sub attached directly to the current atom
- * or to a following 'msubsup' atom.
- * After the call, the index points to the next atom to process.
- * @param {object} expr
- */
-
-
-function parseSupsub(expr, options) {
-  var atom = expr.atoms[expr.index]; // Is there a supsub directly on this atom?
-
-  if (atom && (typeof atom.superscript !== 'undefined' || typeof atom.subscript !== 'undefined')) {
-    // Move to the following atom
-    expr.index += 1;
-  } else {
-    atom = null;
-  } // If this atom didn't have a sup/sub,
-  // is the following atom a subsup atom?
-
-
-  if (!atom) {
-    atom = expr.atoms[expr.index + 1];
-
-    if (!atom || atom.type !== 'msubsup' || !(atom.superscript || atom.subscript)) {
-      atom = null;
-    } else {
-      // Yes. Skip the current atom and the supsub
-      expr.index += 2;
-    }
-  }
-
-  if (atom) {
-    if (typeof atom.subscript !== 'undefined') {
-      expr.ast.sub = parse(atom.subscript, options);
-    }
-
-    if (typeof atom.superscript !== 'undefined') {
-      if (atom.type === 'msubsup') {
-        if (/['\u2032]|\\prime/.test(getString(atom.superscript))) {
-          expr.index += 1;
-          atom = expr.atoms[expr.index + 1];
-
-          if (atom && atom.type === 'msubsup' && /['\u2032]|\\prime/.test(getString(atom.superscript))) {
-            expr.ast.sup = {
-              sym: "\u2033"
-            }; // DOUBLE-PRIME
-          } else {
-            expr.ast.sup = {
-              sym: "\u2032"
-            }; // PRIME
-
-            expr.index -= 1;
-          }
-        } else if (/['\u2033]|\\doubleprime/.test(getString(atom.superscript))) {
-          expr.ast.sup = {
-            sym: "\u2033"
-          }; // DOUBLE-PRIME
-        } else if (expr.ast) {
-          expr.ast.sup = parse(atom.superscript, options);
-        }
-      } else {
-        expr.ast.sup = parse(atom.superscript, options);
-      }
-    }
-  } else {
-    // Didn't find a supsup either on this atom and there was no 'msubsup'
-    // Time to move on to the next atom.
-    expr.index += 1;
-  }
-
-  return expr;
-}
-/**
- * Parse postfix operators, such as "!" (factorial)
- */
-
-
-function parsePostfix(expr, options) {
-  var lhs = expr.ast;
-
-  if (nextIsDigraph(expr, '!!')) {
-    expr.index += 1;
-    expr.ast = wrapFn('factorial2', lhs);
-    expr = parseSupsub(expr, options);
-    expr = parsePostfix(expr, options);
-    return expr;
-  }
-
-  if (nextIsDigraph(expr, '++')) {
-    expr.index += 1;
-    expr.ast = wrapFn('increment', lhs);
-    expr = parseSupsub(expr, options);
-    expr = parsePostfix(expr, options);
-    return expr;
-  }
-
-  if (nextIsDigraph(expr, '--')) {
-    expr.index += 1;
-    expr.ast = wrapFn('decrement', lhs);
-    expr = parseSupsub(expr, options);
-    expr = parsePostfix(expr, options);
-    return expr;
-  }
-
-  var atom = expr.atoms[expr.index];
-
-  if (atom && atom.latex && POSTFIX_FUNCTION[atom.latex.trim()]) {
-    expr.ast = wrapFn(POSTFIX_FUNCTION[atom.latex.trim()], lhs);
-    expr = parseSupsub(expr, options);
-    expr = parsePostfix(expr, options);
-  }
-
-  return expr;
-}
-/**
- * Delimiters can be expressed:
- * - as a matching pair of regular characters: '(a)'
- * - a as 'leftright' expression: '\left(a\right)'
- * - as a matching pair of 'sizeddelim': '\Bigl(a\Bigr)
- *
- * Note that the '\delim' command is only used for delimiters in the middle
- * of a \left\right pair and not to represent pair-matched delimiters.
- *
- * This function handles all three cases
- *
- */
-
-
-function parseDelim(expr, ldelim, rdelim, options) {
-  expr.index = expr.index || 0;
-
-  if (expr.atoms.length === 0 || expr.index >= expr.atoms.length) {
-    expr.ast = undefined;
-    return expr;
-  }
-
-  var savedPrec = expr.minPrec;
-  expr.minPrec = 0;
-  var atom = expr.atoms[expr.index];
-
-  if (!ldelim) {
-    // If we didn't expect a specific delimiter, parse any delimiter
-    // and return it as a function application
-    var pairedDelim = true;
-
-    if (atom.type === 'mopen') {
-      ldelim = atom.latex.trim();
-      rdelim = _definitions.default.RIGHT_DELIM[ldelim];
-    } else if (atom.type === 'sizeddelim') {
-      ldelim = atom.delim;
-      rdelim = _definitions.default.RIGHT_DELIM[ldelim];
-    } else if (atom.type === 'leftright') {
-      pairedDelim = false;
-      ldelim = atom.leftDelim;
-      rdelim = atom.rightDelim; // If we have an unclosed smart fence, assume the right delim is
-      // matching the left delim
-
-      if (rdelim === '?') rdelim = _definitions.default.RIGHT_DELIM[ldelim];
-    } else if (atom.type === 'textord') {
-      ldelim = atom.latex.trim();
-      rdelim = _definitions.default.RIGHT_DELIM[ldelim];
-    }
-
-    if (ldelim && rdelim) {
-      if (ldelim === '|' && rdelim === '|') {
-        // Check if this could be a ||x|| instead of |x|
-        var _atom = expr.atoms[expr.index + 1];
-
-        if (_atom && _atom.type === 'textord' && _atom.latex === '|') {
-          // Yes, it's a ||x||
-          ldelim = '\\lVert';
-          rdelim = '\\rVert';
-        }
-      }
-
-      expr = parseDelim(expr, ldelim, rdelim);
-
-      if (expr) {
-        if (pairedDelim) expr.index += 1;
-        expr.ast = {
-          fn: DELIM_FUNCTION[ldelim + rdelim] || ldelim + rdelim,
-          arg: [expr.ast]
-        };
-        expr.minPrec = savedPrec;
-        return expr;
-      }
-    }
-
-    return undefined;
-  }
-
-  if (atom.type === 'mopen' && getString(atom) === ldelim) {
-    expr.index += 1; // Skip the open delim
-
-    expr = parseExpression(expr, options);
-    atom = expr.atoms[expr.index];
-
-    if (atom && atom.type === 'mclose' && getString(atom) === rdelim) {
-      if (nextIsSupsub(expr)) {
-        // Wrap in a group if we have an upcoming superscript or subscript
-        expr.ast = {
-          group: expr.ast
-        };
-      }
-
-      expr = parseSupsub(expr, options);
-      expr = parsePostfix(expr, options);
-    } // TODO: else, syntax error?
-
-  } else if (atom.type === 'textord' && getString(atom) === ldelim) {
-    expr.index += 1; // Skip the open delim
-
-    expr = parseExpression(expr, options);
-    atom = expr.atoms[expr.index];
-
-    if (atom && atom.type === 'textord' && getString(atom) === rdelim) {
-      expr.index += 1;
-      expr = parseSupsub(expr, options);
-      expr = parsePostfix(expr, options);
-    } // TODO: else, syntax error?
-
-  } else if (ldelim === '\\lVert' && atom.type === 'textord' && atom.latex === '|') {
-    atom = expr.atoms[expr.index + 1];
-
-    if (atom && atom.type === 'textord' && atom.latex === '|') {
-      // This is an opening ||
-      expr.index += 2; // Skip the open delim
-
-      expr = parseExpression(expr, options);
-      atom = expr.atoms[expr.index];
-      var atom2 = expr.atoms[expr.index + 1];
-
-      if (atom && atom.type === 'textord' && atom.latex === '|' && atom2 && atom2.type === 'textord' && atom2.latex === '|') {
-        // This was a closing ||
-        expr.index += 2;
-        expr = parseSupsub(expr, options);
-        expr = parsePostfix(expr, options);
-      }
-    }
-  } else if (atom.type === 'sizeddelim' && atom.delim === ldelim) {
-    expr.index += 1; // Skip the open delim
-
-    expr = parseExpression(expr, options);
-    atom = expr.atoms[expr.index];
-
-    if (atom && atom.type === 'sizeddelim' && atom.delim === rdelim) {
-      expr.index += 1;
-      expr = parseSupsub(expr, options);
-      expr = parsePostfix(expr, options);
-    } // TODO: else, syntax error?
-
-  } else if (atom.type === 'leftright' && atom.leftDelim === ldelim && (atom.rightDelim === '?' || atom.rightDelim === rdelim)) {
-    // This atom type includes the content of the parenthetical expression
-    // in its body
-    expr.ast = parse(atom.body, options);
-
-    if (nextIsSupsub(expr)) {
-      // Wrap in a group if we have an upcoming superscript or subscript
-      expr.ast = {
-        group: expr.ast
-      };
-    }
-
-    expr = parseSupsub(expr, options);
-    expr = parsePostfix(expr, options);
-  } else {
-    return undefined;
-  }
-
-  expr.minPrec = savedPrec;
-  return expr;
-}
-
-function nextIsDigraph(expr, digraph) {
-  expr.index = expr.index || 0;
-
-  if (expr.atoms.length <= 1 || expr.index >= expr.atoms.length - 1) {
-    return false;
-  }
-
-  return digraph === getString(expr.atoms[expr.index]) + getString(expr.atoms[expr.index + 1]);
-}
-/**
- * Some symbols are made up of two consecutive characters.
- * Handle them here. Return undefined if not a digraph.
- * TODO: other digraphs:
- * :=
- * ++
- * **
- * =:
- * °C U+2103
- * °F U+2109
- *
-*/
-
-
-function parseDigraph(expr) {
-  expr.index = expr.index || 0;
-
-  if (expr.atoms.length <= 1 || expr.index >= expr.atoms.length - 1) {
-    return undefined;
-  }
-
-  if (isAtom(expr, 'textord', '\\nabla')) {
-    expr.index += 1;
-
-    if (isAtom(expr, 'mbin', '\\times')) {
-      expr.index += 1;
-      expr.ast = 'curl'; // divergence
-
-      return expr;
-    } else if (isAtom(expr, 'mbin', '\\cdot')) {
-      expr.index += 1;
-      expr.ast = 'div';
-      return expr;
-    }
-
-    expr.index -= 1;
-  } else {
-    var digraph = expr.atoms[expr.index].latex + expr.atoms[expr.index + 1].latex;
-    var result = /^(>=|<=|>>|<<|:=|!=|\*\*|\+\+|--)$/.test(digraph) ? digraph : '';
-
-    if (result) {
-      expr.index += 1;
-    }
-
-    return result;
-  }
-
-  return undefined;
-}
-
-function parsePrimary(expr, options) {
-  // <primary> := ('-'|'+) <primary> | <number> | 
-  //              '(' <expression> ')' | <symbol> | <text> (<expression>)
-  expr.index = expr.index || 0;
-  expr.ast = undefined;
-
-  if (expr.atoms.length === 0 || expr.index >= expr.atoms.length) {
-    return expr;
-  }
-
-  var atom = expr.atoms[expr.index];
-  var val = getCanonicalName(getString(atom));
-  var digraph = parseDigraph(expr);
-
-  if (digraph) {
-    expr.ast = wrapFn(expr.ast, parsePrimary(expr, options).ast);
-  } else if (atom.type === 'root') {
-    expr.index = 0;
-    expr.atoms = atom.body;
-    return parsePrimary(expr, options);
-  } else if (atom.type === 'mbin' && val === '-') {
-    // Prefix - sign
-    expr.index += 1; // Skip the '-' symbol
-
-    expr = parsePrimary(expr, options);
-    expr.ast = negate(expr.ast);
-  } else if (atom.type === 'mbin' && val === '+') {
-    // Prefix + sign
-    expr.index += 1; // Skip the '+' symbol
-
-    expr = parsePrimary(expr, options);
-    expr.ast = wrapFn('add', expr.ast);
-  } else if (atom.type === 'mord' && /^[0-9.]$/.test(atom.latex)) {
-    // Looks like a number
-    var num = '';
-    var done = false;
-    var pat = /^[0-9.eEdD]$/;
-
-    while (expr.index < expr.atoms.length && !done && (isAtom(expr, 'spacing') || (isAtom(expr, 'mord') || isAtom(expr, 'mpunct', ',') || isAtom(expr, 'mbin')) && pat.test(expr.atoms[expr.index].latex))) {
-      if (expr.atoms[expr.index].type === 'spacing') {
-        expr.index += 1;
-      } else if (typeof expr.atoms[expr.index].superscript !== 'undefined' || typeof expr.atoms[expr.index].subscript !== 'undefined') {
-        done = true;
-      } else {
-        var digit = expr.atoms[expr.index].latex;
-
-        if (digit === 'd' || digit === 'D') {
-          digit = 'e';
-          pat = /^[0-9+-.]$/;
-        } else if (digit === 'e' || digit === 'E') {
-          if (nextIsSupsub(expr)) {
-            digit = '';
-            expr.index -= 1;
-            done = true;
-          } else {
-            digit = 'E';
-            pat = /^[0-9+-.]$/;
-          }
-        } else if (pat === /^[0-9+-.]$/) {
-          pat = /^[0-9]$/;
-        }
-
-        num += digit === ',' ? '' : digit;
-        expr.index += 1;
-      }
-    }
-
-    expr.ast = num ? wrapNum(num) : undefined; // This was a number. Is it followed by a fraction, e.g. 2 1/2
-
-    atom = expr.atoms[expr.index];
-
-    if (atom && atom.type === 'genfrac' && !isNaN(expr.ast.num)) {
-      // Add an invisible plus, i.e. 2 1/2 = 2 + 1/2
-      var lhs = expr.ast;
-      expr = parsePrimary(expr, options);
-      expr.ast = wrapFn('add', lhs, expr.ast);
-    }
-
-    if (atom && atom.type === 'group' && atom.latex && atom.latex.startsWith('\\nicefrac')) {
-      // \nicefrac macro, add an invisible plus
-      var _lhs = expr.ast;
-      expr = parsePrimary(expr, options);
-      expr.ast = wrapFn('add', _lhs, expr.ast);
-    }
-
-    if (atom && atom.type === 'msubsup') {
-      expr = parseSupsub(expr, options);
-    }
-
-    expr = parsePostfix(expr, options);
-  } else if (atom.type === 'genfrac' || atom.type === 'surd') {
-    // A fraction or a square/cube root
-    expr.ast = atom.toAST(options);
-    expr = parseSupsub(expr, options);
-    expr = parsePostfix(expr, options);
-  } else if (atom.type === 'mord' || atom.type === 'mbin') {
-    // A 'mord' but not a number: either an identifier ('x') or 
-    // a function ('\\Zeta')
-    if (isFunction(val) && !isOperator(atom)) {
-      // A function
-      expr.ast = {
-        fn: val
-      };
-      expr = parseSupsub(expr, options);
-      var fn = expr.ast;
-      var arg = parsePrimary(expr, options).ast;
-
-      if (arg && /^(list0|list|list2)$/.test(arg.fn)) {
-        fn.arg = fn.arg ? fn.arg.arg : undefined;
-      } else if (arg) {
-        fn.arg = [arg];
-      }
-
-      expr.ast = fn;
-    } else {
-      // An identifier
-      expr.ast = atom.toAST(options);
-
-      if (expr.ast.sym === 'ⅈ') {
-        // It's 'i', the imaginary unit
-        expr.ast = wrapNum({
-          im: "1"
-        });
-      }
-
-      expr = parseSupsub(expr);
-    }
-
-    expr = parsePostfix(expr, options);
-  } else if (atom.type === 'textord') {
-    // Note that 'textord' can also be operators, and are handled as such
-    // in parseExpression()
-    if (!isOperator(atom)) {
-      // This doesn't look like a textord operator
-      if (!_definitions.default.RIGHT_DELIM[atom.latex ? atom.latex.trim() : atom.body]) {
-        // Not an operator, not a fence, it's a symbol or a function
-        if (isFunction(val)) {
-          // It's a function
-          expr.ast = {
-            fn: val
-          };
-          expr = parseSupsub(expr, options);
-          var _fn = expr.ast;
-          expr.index += 1; // Skip the function name
-
-          _fn.arg = [parsePrimary(expr, options).ast];
-          expr.ast = _fn;
-          expr = parsePostfix(expr, options);
-        } else {
-          // It was a symbol...
-          expr.ast = atom.toAST(options);
-
-          if (typeof atom.superscript === 'undefined') {
-            expr.index += 1;
-          }
-
-          expr = parseSupsub(expr, options);
-          expr = parsePostfix(expr, options);
-        }
-      }
-    }
-  } else if (atom.type === 'mop') {
-    // Could be a function or an operator.
-    if ((/^\\(mathop|operatorname|operatorname\*)/.test(atom.latex) || isFunction(val)) && !isOperator(atom)) {
-      expr.ast = {
-        fn: /^\\(mathop|operatorname|operatorname\*)/.test(atom.latex) ? atom.body : val
-      };
-      expr = parseSupsub(expr, options);
-
-      if (hasSup(expr.ast)) {
-        // There was an exponent with the function.
-        // This may be an inverse function
-        var INVERSE_FUNCTION = {
-          'sin': 'arcsin',
-          'cos': 'arccos',
-          'tan': 'arctan',
-          'cot': 'arccot',
-          'sec': 'arcsec',
-          'csc': 'arccsc',
-          'sinh': 'arsinh',
-          'cosh': 'arcosh',
-          'tanh': 'artanh',
-          'csch': 'arcsch',
-          'sech': 'arsech',
-          'coth': 'arcoth'
-        };
-
-        if (asMachineNumber(expr.ast.sup) === -1 && INVERSE_FUNCTION[val]) {
-          expr.ast = wrapFn(INVERSE_FUNCTION[val], parsePrimary(expr, options).ast);
-        } else {
-          // Keep the exponent, add the argument
-          var _fn2 = expr.ast;
-          _fn2.arg = [parsePrimary(expr, options).ast];
-          expr.ast = _fn2;
-        }
-      } else {
-        var _fn3 = expr.ast;
-        var _arg = parsePrimary(expr, options).ast;
-
-        if (_arg && /^(list0|list|list2)$/.test(_arg.fn)) {
-          _fn3.arg = _arg.arg;
-        } else if (_arg) {
-          _fn3.arg = [_arg];
-        }
-
-        expr.ast = _fn3;
-      }
-    }
-  } else if (atom.type === 'array') {
-    expr.index += 1;
-    expr.ast = atom.toAST(options);
-  } else if (atom.type === 'group') {
-    expr.index += 1;
-    expr.ast = atom.toAST(options);
-  } else if (atom.type === 'mclose') {
-    return expr;
-  } else if (atom.type === 'error') {
-    expr.index += 1;
-    expr.ast = {
-      error: atom.latex
-    };
-    return expr;
-  }
-
-  if (expr.ast === undefined) {
-    // Parse either a group of paren, and return their content as the result
-    // or a pair of delimiters, and return them as a function applied
-    // to their content, i.e. "|x|" -> {fn: "||", arg: "x"}
-    var delim = parseDelim(expr, '(', ')', options) || parseDelim(expr, null, null, options);
-
-    if (delim) {
-      expr = delim;
-    } else if (!isOperator(atom)) {
-      // This is not an operator (if it is, it may be an operator
-      // dealing with an empty lhs. It's possible.
-      // Couldn't interpret the expression. Output an error.
-      if (atom.type === 'placeholder') {
-        // Default value for a placeholder is 0
-        // (except for the denominator of a 'genfrac')
-        expr.ast = wrapNum(0);
-      } else {
-        expr.ast = {
-          text: '?'
-        };
-        expr.ast.error = 'Unexpected token ' + "'" + atom.type + "'";
-
-        if (atom.latex) {
-          expr.ast.latex = atom.latex;
-        } else if (atom.body && atom.toLatex) {
-          expr.ast.latex = atom.toLatex();
-        }
-      }
-
-      expr.index += 1; // Skip the unexpected token, and attempt to continue
-    }
-  }
-
-  atom = expr.atoms[expr.index];
-
-  if (atom && (atom.type === 'mord' || atom.type === 'surd' || atom.type === 'mop' || atom.type === 'mopen' || atom.type === 'sizeddelim' || atom.type === 'leftright')) {
-    if (atom.type === 'sizeddelim') {
-      for (var d in _definitions.default.RIGHT_DELIM) {
-        if (atom.delim === _definitions.default.RIGHT_DELIM[d]) {
-          // This is (most likely) a closing delim, exit.
-          // There are ambiguous cases, for example |x|y|z|.
-          expr.index += 1;
-          return expr;
-        }
-      }
-    }
-
-    if ((atom.type === 'mord' || atom.type === 'textord' || atom.type === 'mop') && isOperator(atom)) {
-      // It's actually an operator
-      return expr;
-    }
-
-    var _lhs2 = expr.ast;
-    expr.ast = {};
-    expr = parsePrimary(expr, options);
-
-    if (expr && expr.ast && _lhs2) {
-      if (isFunction(_lhs2.fn) && typeof _lhs2.arg === 'undefined' || Array.isArray(_lhs2.arg) && _lhs2.arg.length === 0) {
-        // A function with no arguments followed by a list -> 
-        // the list becomes the argument to the function
-        if (expr.ast.fn === 'list2' || expr.ast.fn === 'list') {
-          expr.ast = wrapFn(_lhs2.fn, expr.ast.arg);
-        } else {
-          // A function "f(x)" or "√x" followed by something else:
-          // implicit multiply
-          expr.ast = wrapFn('multiply', _lhs2, expr.ast);
-        }
-      } else {
-        // Invisible times, e.g. '2x'
-        if (expr.ast.fn === 'multiply') {
-          expr.ast.arg.unshift(_lhs2);
-        } else if (numberIm(_lhs2) === 0 && numberRe(_lhs2) !== 0 && numberIm(expr.ast) === 1 && numberRe(expr.ast) === 0) {
-          // Imaginary number, i.e. "3i"
-          expr.ast = wrapNum({
-            im: numberRe(_lhs2).toString()
-          });
-        } else {
-          expr.ast = wrapFn('multiply', _lhs2, expr.ast);
-        }
-      }
-    } else {
-      expr.ast = _lhs2;
-    }
-  }
-
-  return expr;
-}
-/**
- * Given an atom or an array of atoms, return their AST representation as
- * an object.
- * @param {object} expr An expressions, including expr.atoms, expr.index,
- * expr.minPrec the minimum precedence that this parser should parse
- * before returning; expr.lhs (optional); expr.ast, the resulting AST.
- * @return {object} the expr object, updated
- * @private
- */
-
-
-function parseExpression(expr, options) {
-  expr.index = expr.index || 0;
-  expr.ast = undefined;
-  if (expr.atoms.length === 0 || expr.index >= expr.atoms.length) return expr;
-  expr.minPrec = expr.minPrec || 0;
-  var lhs = parsePrimary(expr, options).ast;
-  var done = false;
-  var minPrec = expr.minPrec;
-
-  while (!done) {
-    var atom = expr.atoms[expr.index];
-    var digraph = parseDigraph(expr);
-    done = !atom || atom.mode === 'text' || !digraph && !isOperator(atom);
-    var prec = void 0,
-        assoc = void 0;
-
-    if (!done) {
-      var _ref = digraph ? [getPrecedence(digraph), getAssociativity(digraph)] : opPrec(atom);
-
-      var _ref2 = _slicedToArray(_ref, 2);
-
-      prec = _ref2[0];
-      assoc = _ref2[1];
-      done = prec < minPrec;
-    }
-
-    if (!done) {
-      var opName = digraph || getCanonicalName(getString(atom));
-
-      if (assoc === 'left') {
-        expr.minPrec = prec + 1;
-      } else {
-        expr.minPrec = prec;
-      }
-
-      expr.index += 1;
-
-      if (opName === '|') {
-        if (typeof atom.subscript !== 'undefined' || expr.atoms[expr.index] && typeof expr.atoms[expr.index].subscript !== 'undefined' && expr.atoms[expr.index].type === 'msubsup') {
-          // Bind is a special function. It doesn't have a rhs, and 
-          // its argument is a subscript.
-          expr.ast = {};
-          var sub_arg = parseSupsub(expr, options).ast.sub;
-          lhs = wrapFn('bind', lhs);
-
-          if (sub_arg && sub_arg.fn === 'equal' && lhs.arg) {
-            // This is a subscript of the form "x=..."
-            lhs.arg.push(getArg(sub_arg, 0));
-            lhs.arg.push(getArg(sub_arg, 1));
-          } else if (sub_arg && lhs.arg && (sub_arg.fn === 'list' || sub_arg.fn === 'list2')) {
-            // Form: "x=0;n=3;z=5"
-            var currentSym = {
-              sym: "x"
-            };
-
-            for (var i = 0; i < sub_arg.arg.length; i++) {
-              if (sub_arg.arg[i].fn === 'equal') {
-                currentSym = getArg(sub_arg.arg[i], 0);
-                lhs.arg.push(currentSym);
-                lhs.arg.push(getArg(sub_arg.arg[i], 1));
-              } else {
-                lhs.arg.push(currentSym);
-                lhs.arg.push(sub_arg.arg[i]);
-              }
-            }
-          } else if (sub_arg) {
-            // Default identifier if none provided
-            lhs.arg.push({
-              sym: "x"
-            });
-            lhs.arg.push(sub_arg);
-          }
-        } else {
-          // That was a "|", but not with a subscript after, so 
-          // it's the end of the expression, might be a right fence.
-          done = true;
-        }
-      } else {
-        var rhs = parseExpression(expr, options).ast; // Some operators (',' and ';' for example) convert into a function
-        // even if there's only two arguments. They're super associative...
-
-        var fn = SUPER_ASSOCIATIVE_FUNCTION[opName];
-
-        if (fn && lhs && lhs.fn !== fn) {
-          // Only promote them if the lhs is not already the same function.
-          // If it is, we'll combine it below.
-          lhs = wrapFn(fn, lhs);
-        } // Promote subtraction to an addition
-
-
-        if (opName === '-') {
-          if (lhs && lhs.arg && lhs.fn === 'add') {
-            // add(x,y) - z -> add(x, y, -z)
-            if (rhs !== undefined) lhs.arg.push(negate(rhs));
-          } else if (lhs && lhs.fn === 'subtract') {
-            // x-y - z      -> add(x, -y, -z)
-            lhs = wrapFn('add', getArg(lhs, 0), negate(getArg(lhs, 1)), negate(rhs));
-          } else if (isNumber(lhs) && !hasSup(lhs) && isNumber(rhs) && !hasSup(rhs) && (typeof rhs.num.re === 'undefined' || rhs.num.re === '0') && typeof rhs.num.im !== 'undefined') {
-            lhs = {
-              num: {
-                re: lhs.num,
-                im: (-parseFloat(rhs.num.im)).toString()
-              }
-            };
-          } else {
-            lhs = wrapFn('subtract', lhs, rhs);
-          }
-        } else {
-          // Is there a function (e.g. 'add') implementing the
-          // associative version of this operator (e.g. '+')?
-          fn = ASSOCIATIVE_FUNCTION[opName];
-
-          if (fn === 'add' && lhs && lhs.fn === 'subtract') {
-            // subtract(x, y) + z -> add(x, -y, z)
-            lhs = wrapFn('add', getArg(lhs, 0), negate(getArg(lhs, 1)), rhs);
-          } else if (fn && lhs && lhs.fn === fn && !hasSup(lhs)) {
-            // add(x,y) + z -> add(x, y, z)
-            if (typeof rhs !== 'undefined') {
-              if (rhs.fn === fn && !hasSup(rhs) && rhs.arg) {
-                // add(x, y) = add (a, b)
-                lhs.arg = [].concat(_toConsumableArray(lhs.arg), _toConsumableArray(rhs.arg));
-              } else if (lhs.arg) {
-                lhs.arg.push(rhs);
-              }
-            }
-          } else if (fn && rhs && rhs.arg && rhs.fn === fn) {
-            // x =    y = z -> equal(x, y, z)
-            rhs.arg.unshift(lhs);
-            lhs = rhs;
-          } else if (fn === 'multiply' && isNumber(lhs) && !hasSup(lhs) && rhs && asMachineNumber(rhs) === 10 && isNumber(rhs.sup)) {
-            // n * 10^m
-            lhs = wrapNum(asMachineNumber(lhs) * Math.pow(10, asMachineNumber(rhs.sup)));
-          } else if (fn === 'add' && isNumber(lhs) && !hasSup(lhs) && rhs && numberIm(rhs) !== 0 && !hasSup(rhs)) {
-            lhs = {
-              num: {
-                re: lhs.num,
-                im: rhs.num.im
-              }
-            };
-          } else {
-            lhs = wrapFn(fn || OP_NAME[opName] || opName, lhs, rhs);
-          }
-        }
-      }
-    }
-  }
-
-  expr.ast = lhs;
-  return expr;
-}
-/**
- * Return a string escaped as necessary to comply with the JSON format
- * @param {string} s
- * @return {string}
- */
-
-
-function escapeText(s) {
-  return s.replace(/[\\]/g, '\\\\').replace(/["]/g, '\\"').replace(/[\b]/g, "\\b").replace(/[\f]/g, "\\f").replace(/[\n]/g, "\\n").replace(/[\r]/g, "\\r").replace(/[\t]/g, "\\t");
-}
-/**
- * Return an AST representation of a single atom
- *
- * @return {object}
- * @method MathAtom#toAST
- */
-
-
-_mathAtom.default.MathAtom.prototype.toAST = function (options) {
-  var MATH_VARIANTS = {
-    'bb': 'double-struck',
-    'cal': 'script',
-    'scr': 'script',
-    'frak': 'fraktur',
-    'cmrss': 'sans-serif',
-    'cmrtt': 'monospace'
-  }; // TODO: See https://www.w3.org/TR/MathML2/chapter6.html#chars.letter-like-tables
-
-  var result = {};
-  var sym = '';
-  var m;
-  var lhs, rhs;
-  var variant = MATH_VARIANTS[this.baseFontFamily || this.fontFamily];
-  var variantSym;
-  var style = '';
-  if (this.fontSeries === 'b') style += 'bold';
-  if (this.fontShape === 'it') style += 'italic';
-  var command = this.latex ? this.latex.trim() : null;
-
-  switch (this.type) {
-    case 'root':
-    case 'group':
-      // Macros appear as group as well. Handle some of them.
-      if (this.latex && this.latex.startsWith('\\nicefrac')) {
-        m = this.latex.slice(9).match(/({.*}|[^}])({.*}|[^}])/);
-
-        if (m) {
-          if (m[1].length === 1) {
-            lhs = m[1];
-          } else {
-            lhs = m[1].substr(1, m[1].length - 2);
-          }
-
-          lhs = _parser.default.parseTokens(_lexer.default.tokenize(lhs), 'math', null, options.macros);
-
-          if (m[2].length === 1) {
-            rhs = m[2];
-          } else {
-            rhs = m[2].substr(1, m[2].length - 2);
-          }
-
-          rhs = _parser.default.parseTokens(_lexer.default.tokenize(rhs), 'math', null, options.macros);
-          result = wrapFn('divide', parse(lhs, options), parse(rhs, options));
-        } else {
-          result.fn = 'divide';
-        }
-      } else {
-        result.group = parse(this.body, options);
-      }
-
-      break;
-
-    case 'genfrac':
-      // If there's no denominator, or a placeholder, use "1" as the value
-      result = wrapFn('divide', parse(this.numer, options), this.denom && this.denom[0] && this.denom[0].type === 'placeholder' ? wrapNum(1) : parse(this.denom, options));
-      break;
-
-    case 'surd':
-      if (this.index) {
-        result = wrapFn('pow', parse(this.body, options), wrapFn('divide', 1, parse(this.index, options)));
-      } else {
-        result = wrapFn('sqrt', parse(this.body, options));
-      }
-
-      break;
-
-    case 'rule':
-      break;
-
-    case 'line':
-    case 'overlap':
-    case 'accent':
-      break;
-
-    case 'overunder':
-      break;
-
-    case 'mord':
-    case 'textord':
-    case 'mbin':
-      // Check to see if it's a \char command
-      m = !command ? undefined : command.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/);
-
-      if (m) {
-        sym = String.fromCodePoint(parseInt(m[1], 16));
-      } else {
-        sym = getCanonicalName(getString(this));
-
-        if (sym.length > 0 && sym.charAt(0) === '\\') {
-          // This is an identifier with no special handling.
-          // Use the Unicode value if outside ASCII range
-          if (typeof this.body === 'string') {
-            // TODO: consider making this an option?
-            // if (this.body.charCodeAt(0) > 255) {
-            //     sym = '&#x' + ('000000' +
-            //         this.body.charCodeAt(0).toString(16)).substr(-4) + ';';
-            // } else {
-            sym = this.body; // }
-          }
-        }
-      }
-
-      variantSym = escapeText(_definitions.default.mathVariantToUnicode(sym, variant, style));
-
-      if (variantSym !== sym) {
-        // If there's a specific Unicode character matching this one
-        // no need to record a variant.
-        result = {
-          sym: variantSym
-        };
-        variant = 'normal';
-      } else {
-        result = {
-          sym: sym
-        };
-      }
-
-      break;
-    // case 'mpunct':
-    //     result = '<mo separator="true">' + command + '</mo>';
-    //     break;
-
-    case 'minner':
-      break;
-
-    case 'mop':
-      break;
-
-    case 'box':
-      result = parse(this.body, options);
-      break;
-
-    case 'enclose':
-      // result = '<menclose notation="';
-      // for (const notation in this.notation) {
-      //     if (this.notation.hasOwnProperty(notation) &&
-      //         this.notation[notation]) {
-      //         result += sep + notation;
-      //         sep = ' ';
-      //     }
-      // }
-      // result += '">' + toAST(this.body).mathML + '</menclose>';
-      break;
-
-    case 'array':
-      if (this.env.name === 'cardinality') {
-        result = wrapFn('card', parse(this.array, options));
-      } else if (/array|matrix|pmatrix|bmatrix/.test(this.env.name)) {
-        result = {
-          fn: 'array',
-          args: []
-        };
-        var _iteratorNormalCompletion3 = true;
-        var _didIteratorError3 = false;
-        var _iteratorError3 = undefined;
-
-        try {
-          for (var _iterator3 = this.array[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-            var row = _step3.value;
-            result.args.push(row.map(function (cell) {
-              return parse(cell, options);
-            }));
-          }
-        } catch (err) {
-          _didIteratorError3 = true;
-          _iteratorError3 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
-              _iterator3.return();
-            }
-          } finally {
-            if (_didIteratorError3) {
-              throw _iteratorError3;
-            }
-          }
-        }
-      } else if (this.env.name === 'cases') {
-        result = {
-          fn: 'cases',
-          args: []
-        };
-        var _iteratorNormalCompletion4 = true;
-        var _didIteratorError4 = false;
-        var _iteratorError4 = undefined;
-
-        try {
-          for (var _iterator4 = this.array[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
-            var _row = _step4.value;
-
-            if (_row[0]) {
-              var statement = [];
-              statement.push(parse(_row[0], options));
-              var condition = parse(_row[1], options);
-
-              if (condition) {
-                if (condition.fn === 'text' && condition.arg) {
-                  if (/^(if|when|for)$/i.test(condition.arg[0].trim())) {
-                    condition = condition.arg.filter(function (x) {
-                      return typeof x !== 'string';
-                    });
-                  }
-                }
-              }
-
-              statement.push(condition || {});
-              result.args.push(statement);
-            }
-          }
-        } catch (err) {
-          _didIteratorError4 = true;
-          _iteratorError4 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
-              _iterator4.return();
-            }
-          } finally {
-            if (_didIteratorError4) {
-              throw _iteratorError4;
-            }
-          }
-        }
-      }
-
-      break;
-
-    case 'spacing':
-    case 'space':
-    case 'mathstyle':
-      break;
-
-    default:
-      result = undefined;
-      console.warn('Unhandled atom "' + this.type + '" in "' + (this.latex || this.body) + '"');
-  }
-
-  if (result && variant && variant !== 'normal') {
-    result.variant = variant;
-  }
-
-  if (result && typeof this.cssClass === 'string') {
-    result.class = this.cssClass;
-  }
-
-  if (result && typeof this.cssId === 'string') {
-    result.id = this.cssId;
-  }
-
-  return result;
-};
-
-function filterPresentationAtoms(atoms) {
-  if (!atoms) return [];
-  var result;
-
-  if (Array.isArray(atoms)) {
-    result = [];
-    var _iteratorNormalCompletion5 = true;
-    var _didIteratorError5 = false;
-    var _iteratorError5 = undefined;
-
-    try {
-      for (var _iterator5 = atoms[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
-        var atom = _step5.value;
-        var filter = filterPresentationAtoms(atom);
-        result = result.concat(filter);
-      }
-    } catch (err) {
-      _didIteratorError5 = true;
-      _iteratorError5 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
-          _iterator5.return();
-        }
-      } finally {
-        if (_didIteratorError5) {
-          throw _iteratorError5;
-        }
-      }
-    }
-  } else {
-    if (atoms.type === 'spacing') {
-      return [];
-    } else if (atoms.type === 'first' || atoms.type === 'box') {
-      result = filterPresentationAtoms(atoms.body);
-    } else {
-      if (atoms.body && Array.isArray(atoms.body)) {
-        atoms.body = filterPresentationAtoms(atoms.body);
-      }
-
-      if (atoms.superscript && Array.isArray(atoms.superscript)) {
-        atoms.superscript = filterPresentationAtoms(atoms.superscript);
-      }
-
-      if (atoms.subscript && Array.isArray(atoms.subscript)) {
-        atoms.subscript = filterPresentationAtoms(atoms.subscript);
-      }
-
-      if (atoms.index && Array.isArray(atoms.index)) {
-        atoms.index = filterPresentationAtoms(atoms.index);
-      }
-
-      if (atoms.denom && Array.isArray(atoms.denom)) {
-        atoms.denom = filterPresentationAtoms(atoms.denom);
-      }
-
-      if (atoms.numer && Array.isArray(atoms.numer)) {
-        atoms.numer = filterPresentationAtoms(atoms.numer);
-      }
-
-      if (atoms.array && Array.isArray(atoms.array)) {
-        atoms.array = atoms.array.map(function (row) {
-          return row.map(function (cell) {
-            return filterPresentationAtoms(cell);
-          });
-        });
-      }
-
-      result = [atoms];
-    }
-  }
-
-  return result;
-}
-/**
- * Parse a sequence of text zone and math zones:
- * <sentence> := ((<text>) <expression>)+
- * @param {object} expr 
- * @return  {object}
- */
-
-
-function parseSentence(expr, options) {
-  expr.index = expr.index || 0;
-  expr.ast = undefined;
-  var zones = []; // Iterate while we have atoms to look at
-
-  while (expr.atoms[expr.index]) {
-    if (expr.atoms[expr.index].mode === 'text') {
-      // Text mode atom...
-      var text = '';
-
-      while (expr.atoms[expr.index] && expr.atoms[expr.index].mode === 'text') {
-        text += expr.atoms[expr.index].body;
-        expr.index += 1;
-      }
-
-      zones.push(text);
-    } else {
-      var z = parseExpression(expr, options).ast; // Something went wrong in parsing the expression...
-
-      if (!z) return undefined;
-      zones.push(z);
-    }
-  }
-
-  if (zones.length > 1) {
-    return wrapFn.apply(void 0, ['text'].concat(zones));
-  }
-
-  return zones[0] || undefined;
-}
-/**
- * @param {Atoms[]} atoms 
- * @return  {object}
- */
-
-
-function parse(atoms, options) {
-  return parseSentence({
-    atoms: filterPresentationAtoms(atoms)
-  }, options);
-}
-
-_mathAtom.default.toAST = function (atoms, options) {
-  return parse(atoms, options);
-};
-/**
- *
- * @param {string} fence - The fence to wrap around the arguments
- * @return {string} - A string wrapped in the fence
- */
-
-
-function wrapFence(fence) {
-  var args = Array.prototype.slice.call(arguments);
-  args.shift();
-  fence = fence || '.. ';
-  var result = '';
-
-  if (args.length > 0) {
-    if (fence[0] !== '.') result += fence[0];
-    var sep = '';
-    var _iteratorNormalCompletion6 = true;
-    var _didIteratorError6 = false;
-    var _iteratorError6 = undefined;
-
-    try {
-      for (var _iterator6 = args[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
-        var arg = _step6.value;
-        result += sep + arg;
-        sep = fence[2];
-      }
-    } catch (err) {
-      _didIteratorError6 = true;
-      _iteratorError6 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
-          _iterator6.return();
-        }
-      } finally {
-        if (_didIteratorError6) {
-          throw _iteratorError6;
-        }
-      }
-    }
-
-    if (fence[1] !== '.') result += fence[1];
-  }
-
-  return result;
-}
-/**
- * Return a formatted mantissa:
- * 1234567 -> 123 456 7...
- * 1233333 -> 12(3)
- * @param {string} m
- * @param {Object.<string, any>} config
- */
-
-
-function formatMantissa(m, config) {
-  var originalLength = m.length; // The last digit may have been rounded, if it exceeds the precison,
-  // which could throw off the
-  // repeating pattern detection. Ignore   it.
-
-  m = m.substr(0, config.precision - 2);
-
-  for (var i = 0; i < m.length - 16; i++) {
-    // Offset is the part of the mantissa that is not repeating
-    var offset = m.substr(0, i); // Try to find a repeating pattern of length j
-
-    for (var j = 0; j < 17; j++) {
-      var cycle = m.substr(i, j + 1);
-      var times = Math.floor((m.length - offset.length) / cycle.length);
-
-      if (times > 1) {
-        if ((offset + cycle.repeat(times + 1)).startsWith(m)) {
-          // We've found a repeating pattern!
-          if (cycle === '0') {
-            return offset.replace(/(\d{3})/g, '$1' + config.groupSeparator);
-          }
-
-          return offset.replace(/(\d{3})/g, '$1' + config.groupSeparator) + config.beginRepeatingDigits + cycle.replace(/(\d{3})/g, '$1' + config.groupSeparator) + config.endRepeatingDigits;
-        }
-      }
-    }
-  }
-
-  if (originalLength !== m.length) {
-    m += '\\ldots';
-  }
-
-  return m.replace(/(\d{3})/g, '$1' + config.groupSeparator);
-}
-
-function parseFloatToPrecision(num) {
-  return parseFloat(parseFloat(num).toPrecision(15));
-}
-/**
-*
-* @param {string|number} num - A number, represented as a string (e.g. "-12.45"
-*  particularly useful for arbitrary precision numbers) or a number (-12.45)
-* @return {string} A LaTeX representation of the AST
-*/
-
-
-function numberAsLatex(num, config) {
-  var result = '';
-
-  if (typeof config.precision === 'number') {
-    if (typeof num === 'number') {
-      num = parseFloatToPrecision(num);
-    } else {
-      var sign = '';
-      var exponent = '';
-
-      if (num[0] === '-') {
-        sign = '-';
-        num = num.substr(1);
-      } else if (num[0] === '+') {
-        num = num.substr(1);
-      }
-
-      if (num.indexOf('.') >= 0) {
-        var m = num.match(/(\d*).(\d*)([e|E]([-+]?[0-9]*))?/);
-        var base = m[1];
-        var mantissa = m[2].substring(0, Math.min(config.precision - base.length, m[2].length));
-        exponent = m[4] || '';
-
-        if (base === '0') {
-          var p = 0; // Index of the first non-zero digit after the decimal
-
-          while (mantissa[p] === '0' && p < mantissa.length) {
-            p += 1;
-          }
-
-          var r = '';
-
-          if (p <= 4) {
-            r = '0' + config.decimalMarker;
-            r += mantissa.substr(0, p);
-            r += formatMantissa(num.substr(r.length), config);
-          } else if (p + 1 >= config.precision) {
-            r = '0';
-            sign = '';
-          } else {
-            r = num[p];
-            var f = formatMantissa(num.substr(p + 1), config);
-
-            if (f) {
-              r += config.decimalMarker + f;
-            }
-          }
-
-          if (r !== '0') {
-            if (num.length - 1 > config.precision && !r.endsWith('}') && !r.endsWith('\\ldots')) {
-              r += '\\ldots';
-            }
-
-            if (p > 4) {
-              r += config.exponentProduct;
-
-              if (config.exponentMarker) {
-                r += config.exponentMarker + (1 - p).toString();
-              } else {
-                r += '10^{' + (1 - p).toString() + '}';
-              }
-            }
-          }
-
-          num = r;
-        } else {
-          num = base.replace(/\B(?=(\d{3})+(?!\d))/g, config.groupSeparator);
-
-          var _f = formatMantissa(mantissa, config);
-
-          if (_f) {
-            num += config.decimalMarker + _f; // if (num.length - 1 > config.precision && !num.endsWith('}') && !num.endsWith('\\ldots')) {
-            //     num += '\\ldots';
-            // }
-          }
-        }
-      } else if (num.length > config.precision) {
-        var len = num.length;
-        var _r = num[0];
-
-        var _f2 = formatMantissa(num.substr(2), config);
-
-        if (_f2) {
-          _r += config.decimalMarker + _f2;
-
-          if (_r[_r.length - 1] !== '}') {
-            _r += '\\ldots';
-          }
-        }
-
-        if (_r !== '1') {
-          _r += config.exponentProduct;
-        } else {
-          _r = '';
-        }
-
-        if (config.exponentMarker) {
-          _r += config.exponentMarker + (len - 2).toString();
-        } else {
-          _r += '10^{' + (len - 2).toString() + '}';
-        }
-
-        num = _r;
-      } else {
-        num = num.replace(/\B(?=(\d{3})+(?!\d))/g, config.groupSeparator);
-      }
-
-      if (exponent) {
-        // There is an exponent...
-        if (config.exponentMarker) {
-          exponent = config.exponentMarker + exponent;
-        } else {
-          exponent = config.exponentProduct + ' 10^{' + exponent + '}';
-        }
-      }
-
-      return sign + num + exponent;
-    }
-  }
-
-  if (config.scientificNotation === 'engineering') {
-    // Ensure the exponent is a multiple of 3
-    if (num === 0) {
-      result = '0';
-    } else {
-      var y = Math.abs(num);
-
-      var _exponent = Math.round(Math.log10(y));
-
-      _exponent = _exponent - _exponent % 3;
-      if (y < 1000) _exponent = 0;
-
-      var _mantissa = y / Math.pow(10, _exponent);
-
-      var _m = _mantissa.toString().match(/^(.*)\.(.*)$/);
-
-      if (_m && _m[1] && _m[2]) {
-        _mantissa = _m[1] + config.decimalMarker + _m[2];
-      }
-
-      if (config.groupSeparator) {
-        _mantissa = formatMantissa(_mantissa.toExponential(), config);
-      }
-
-      if (_exponent === 0) {
-        _exponent = '';
-      } else if (config.exponentMarker) {
-        _exponent = config.exponentMarker + _exponent;
-      } else {
-        _exponent = config.exponentProduct + ' 10^{' + _exponent + '}';
-      }
-
-      result = (num < 0 ? '-' : '') + _mantissa + _exponent;
-    }
-  } else {
-    var valString = typeof num === 'string' ? num : num.toString();
-
-    var _m2 = valString.match(/^(.*)[e|E]([-+]?[0-9]*)$/i);
-
-    var _base, _exponent2, _mantissa2;
-
-    _base = valString;
-    _mantissa2 = '';
-
-    if (_m2 && _m2[1] && _m2[2]) {
-      // There is an exponent...
-      _base = _m2[1];
-
-      if (config.exponentMarker) {
-        _exponent2 = config.exponentMarker + _m2[2];
-      } else {
-        _exponent2 = config.exponentProduct + ' 10^{' + _m2[2] + '}';
-      }
-    }
-
-    _m2 = _base.match(/^(.*)\.(.*)$/);
-
-    if (_m2 && _m2[1] && _m2[2]) {
-      _base = _m2[1];
-      _mantissa2 = _m2[2];
-    }
-
-    if (config.groupSeparator) {
-      _base = _base.replace(/\B(?=(\d{3})+(?!\d))/g, config.groupSeparator);
-      _mantissa2 = formatMantissa(_mantissa2, config);
-    }
-
-    if (_mantissa2) _mantissa2 = config.decimalMarker + _mantissa2;
-    result = _base + _mantissa2 + (_exponent2 || '');
-  }
-
-  return result;
-}
-/**
-*
-* @param {object} ast - Abstract Syntax Tree object (in canonical form)
-* @return {string} A LaTeX representation of the AST
-*/
-
-
-function asLatex(ast, options) {
-  var config = Object.assign({
-    precision: 14,
-    decimalMarker: '.',
-    groupSeparator: '\\, ',
-    product: '\\cdot ',
-    // \\times, \\,
-    exponentProduct: '\\cdot ',
-    exponentMarker: '',
-    arcSeparator: '\\,',
-    scientificNotation: 'auto',
-    // 'engineering', 'auto', 'on'
-    beginRepeatingDigits: '\\overline{',
-    endRepeatingDigits: '}'
-  }, options);
-  var result = '';
-  if (ast === undefined) return '';
-
-  if (typeof ast === 'string') {
-    ast = JSON.parse(ast);
-  }
-
-  if (ast.latex) {
-    // If ast.latex key is present, use it to render the element
-    result = ast.latex;
-  } else if (isNumber(ast)) {
-    var val = asMachineNumber(ast);
-
-    if (val === -Infinity) {
-      result = '-\\infty ';
-    } else if (val === Infinity) {
-      result = '\\infty ';
-    } else if (_typeof(ast.num) === 'object' && (typeof ast.num.re === 'string' || typeof ast.num.im === 'string')) {
-      var re = numberRe(ast);
-      var im = numberIm(ast);
-
-      if (isNaN(re) || isNaN(im)) {
-        result = '\\text{NaN}';
-      } else if (Math.abs(im) <= Number.EPSILON && Math.abs(re) <= Number.EPSILON) {
-        result = '0';
-      } else {
-        if (Math.abs(re) > Number.EPSILON) {
-          result = numberAsLatex(re, config);
-        }
-
-        if (Math.abs(im) > Number.EPSILON) {
-          if (Math.abs(re) > Number.EPSILON) {
-            result += im > 0 ? '+' : '';
-          }
-
-          result += (Math.abs(im) !== 1 ? numberAsLatex(im, config) : '') + '\\imaginaryI ';
-        }
-      }
-    } else if (isNaN(val)) {
-      result = '\\text{NaN}';
-    } else {
-      result = numberAsLatex(ast.num, config);
-    }
-
-    if (hasSup(ast)) result += '^{' + asLatex(ast.sup, config) + '}';
-    if (hasSub(ast)) result += '_{' + asLatex(ast.sub, config) + '}';
-  } else if (ast.group) {
-    result = asLatex(ast.group, config);
-
-    if (!isNumber(ast.group) && !asSymbol(ast.group)) {
-      result = wrapFence(ast.fence || '(),', result);
-    } else if (numberIm(ast.group) !== 0) {
-      result = wrapFence(ast.fence || '(),', result);
-    }
-
-    if (hasSup(ast)) result += '^{' + asLatex(ast.sup, config) + '}';
-    if (hasSub(ast)) result += '_{' + asLatex(ast.sub, config) + '}';
-  } else if (ast.fn) {
-    if (ast.fn === 'bind') {
-      result = asLatex(getArg(ast, 0), config) + '|_{';
-
-      if (ast.arg && ast.arg.length === 2) {
-        result += asLatex(getArg(ast, 1));
-      } else {
-        var sep = '';
-
-        for (var i = 1; i < ast.arg.length; i += 2) {
-          result += sep + asLatex(getArg(ast, i)) + ' = ' + asLatex(getArg(ast, i + 1));
-          sep = ', ';
-        }
-      }
-
-      result += '}';
-    } else if (ast.fn === 'divide') {
-      result = '\\frac{' + asLatex(getArg(ast, 0), config) + '}{' + asLatex(getArg(ast, 1), config) + '}';
-    } else if (ast.fn === 'negate') {
-      result = '-' + asLatex(getArg(ast, 0), config);
-    } else if (ast.fn === 'subtract') {
-      result = asLatex(getArg(ast, 0), config) + ' - ' + asLatex(getArg(ast, 1), config);
-    } else if ((ast.fn === 'add' || ast.fn === 'multiply') && Array.isArray(ast.arg)) {
-      var a = [];
-      var _iteratorNormalCompletion7 = true;
-      var _didIteratorError7 = false;
-      var _iteratorError7 = undefined;
-
-      try {
-        for (var _iterator7 = ast.arg[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
-          var exp = _step7.value;
-
-          if (exp.fn === 'add' || exp.fn === 'subtract') {
-            a.push(wrapFence('() ', asLatex(exp, config)));
-          } else if (isComplexWithRealAndImaginary(exp)) {
-            // Complex numbers that have both a real and imaginary part
-            // should be wrapped in parentheses
-            a.push(wrapFence('() ', asLatex(exp, config)));
-          } else if (hasSup(ast) && !(numberIm(exp) === 0 || numberIm(exp) === 1)) {
-            // Wrap with parentheses if there's an exponent
-            // and the imaginary part is neither 0 nor 1
-            a.push(wrapFence('() ', asLatex(exp, config)));
-          } else {
-            a.push(asLatex(exp, config));
-          }
-        }
-      } catch (err) {
-        _didIteratorError7 = true;
-        _iteratorError7 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
-            _iterator7.return();
-          }
-        } finally {
-          if (_didIteratorError7) {
-            throw _iteratorError7;
-          }
-        }
-      }
-
-      if (ast.fn === 'multiply') {
-        if (ast.arg && ast.arg.length === 2 && (isNumber(ast.arg[0]) || ast.arg[0].fn === 'divide') && (!isNumber(ast.arg[1]) || numberRe(ast.arg[1]) === 0 && numberIm(ast.arg[1]) === 1)) {
-          // Invisible times: 
-          // (number or fraction) * not a number
-          // or (number or fraction) * imaginary unit
-          result = a[0] + a[1];
-        } else {
-          result = a.join(' \\times ');
-        }
-      } else {
-        // Addition (and subtraction)
-        if (ast.arg && ast.arg.length === 1) {
-          if (ast.arg[0].fn === 'negate' || isNumber(ast.arg[0]) && asMachineNumber(ast.arg[0]) < 0) {
-            // a[0] has a negative sign
-            result = a[0];
-          } else {
-            // Single non-negative element, add a '+' in front
-            result = '+' + a[0];
-          }
-        } else {
-          result = a[0];
-
-          for (var _i2 = 1; _i2 < ast.arg.length; _i2++) {
-            if (ast.arg[_i2].fn === 'negate' || isNumber(ast.arg[_i2]) && asMachineNumber(ast.arg[_i2]) < 0) {
-              // a[i] already has a negative sign, so we can do an 
-              // implicit add
-              result += a[_i2];
-            } else {
-              result += ' + ' + a[_i2];
-            }
-          }
-        }
-      }
-    } else if (ast.fn === 'list' || ast.fn === 'list2') {
-      var _a = [];
-      var _iteratorNormalCompletion8 = true;
-      var _didIteratorError8 = false;
-      var _iteratorError8 = undefined;
-
-      try {
-        for (var _iterator8 = ast.arg[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
-          var _exp = _step8.value;
-
-          _a.push(asLatex(_exp, config));
-        }
-      } catch (err) {
-        _didIteratorError8 = true;
-        _iteratorError8 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion8 && _iterator8.return != null) {
-            _iterator8.return();
-          }
-        } finally {
-          if (_didIteratorError8) {
-            throw _iteratorError8;
-          }
-        }
-      }
-
-      result = _a.join(ast.fn === 'list2' ? '; ' : ', ');
-    } else if (ast.fn === 'pow' && Array.isArray(ast.arg) && ast.arg.length >= 2) {
-      result = asLatex(getArg(ast, 0), config);
-
-      if (!isNumber(getArg(ast, 0)) && !asSymbol(getArg(ast, 0))) {
-        result = wrapFence(ast.fence || '(),', result);
-      }
-
-      result += '^{' + asLatex(getArg(ast, 1), config) + '}';
-    } else if (ast.fn === 'equal' && ast.arg && ast.arg.length > 2) {
-      result = ast.arg.map(function (x) {
-        return asLatex(x, config);
-      }).join(' = ');
-    } else {
-      var fn = getLatexTemplateForFunction(ast.fn);
-      result = fn;
-      var argstring = '';
-      var parenRequired = /%(?![01_^])/.test(fn) && Array.isArray(ast.arg) && ast.arg.length > 1;
-
-      if (parenRequired) {
-        // Parenthesis are required if argument list is longer than 1
-        result += wrapFence.apply(void 0, [ast.fence || '(),'].concat(_toConsumableArray(ast.arg.map(function (x) {
-          return asLatex(x, config);
-        }))));
-      } else if (Array.isArray(ast.arg) && ast.arg.length > 0) {
-        // The parenthesis may be optional...
-        var arg0 = asLatex(getArg(ast, 0), config);
-        var arg1 = asLatex(getArg(ast, 1), config);
-
-        var argsn = _toConsumableArray(ast.arg);
-
-        if (/%0/.test(fn)) {
-          result = result.replace('%0', arg0);
-          argsn.shift();
-        }
-
-        if (/%1/.test(fn)) {
-          result = result.replace('%1', arg1);
-          argsn.shift();
-        }
-
-        if (argsn.length > 0) {
-          argstring = wrapFence.apply(void 0, [ast.fence || '(),'].concat(_toConsumableArray(argsn.map(function (x) {
-            return asLatex(x, config);
-          }))));
-        }
-      } else {
-        // Empty argument list
-        argstring = wrapFence(ast.fence || '(),', '');
-      }
-
-      if (hasSup(ast)) {
-        result = result.replace('%^', '^{' + asLatex(ast.sup, config) + '}');
-      } else {
-        result = result.replace('%^', '');
-      }
-
-      if (hasSub(ast)) {
-        result = result.replace('%_', '_{' + asLatex(ast.sub, config) + '}');
-      } else {
-        result = result.replace('%_', '');
-      } // Insert the arguments in the function template (%)
-
-
-      result = result.replace(/%(?![01_^])/, argstring); // If there are any placeholders left, remove them
-
-      result = result.replace('%0', '').replace('%1', '');
-    }
-  } else if (typeof ast.sym === 'string') {
-    result = asSymbol(ast); // Is it a Unicode value?
-
-    var m = result.match(/^&#x([0-9a-f]+);$/i);
-
-    if (m && m[1]) {
-      result = String.fromCodePoint(parseInt(m[1], 16));
-    } else {
-      m = result.match(/^&#([0-9]+);$/i);
-
-      if (m && m[1]) {
-        result = String.fromCodePoint(parseInt(m[1]));
-      }
-    } // Is there a variant info attached to it?
-
-
-    if (typeof ast.variant === 'string') {
-      var MATH_VARIANTS = {
-        'normal': 'mathrm',
-        'double-struck': 'mathbb',
-        'bold': 'mathbf',
-        // 'script': 'mathcal',
-        'fraktur': 'mathfrak',
-        'script': 'mathscr',
-        'sans-serif': 'mathsf',
-        'monospace': 'mathtt'
-      };
-      result = '\\' + MATH_VARIANTS[ast.variant] + '{' + result + '}';
-    }
-
-    if (hasSup(ast)) result += '^{' + asLatex(ast.sup, config) + '}';
-    if (hasSub(ast)) result += '_{' + asLatex(ast.sub, config) + '}';
-  } else if (typeof ast.text === 'string') {
-    result = '\\text{' + ast.text + '}';
-  } // If there was an error attached to this node,
-  // display it on a red background
-
-
-  if (typeof ast.error === 'string') {
-    result = '\\bbox[#F56165]{' + result + '}';
-  }
-
-  return result;
-} // Export the public interface for this module
-
-
-var _default = {
-  asLatex: asLatex,
-  asMachineNumber: asMachineNumber,
-  isNumber: isNumber,
-  asSymbol: asSymbol
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/addons/outputLatex.js b/dist/addons/outputLatex.js
deleted file mode 100644
index c5b4a95ea..000000000
--- a/dist/addons/outputLatex.js
+++ /dev/null
@@ -1,628 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
-
-var _color = _interopRequireDefault(require("../core/color.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/**
- * This module outputs a formula to LaTeX.
- * 
- * To use it, use the {@linkcode MathAtom#toLatex MathAtom.toLatex()}  method.
- * 
- * @module addons/outputLatex
- * @private
- */
-function findLongestRun(atoms, property, value) {
-  var i = 0;
-
-  while (atoms[i]) {
-    if (atoms[i].type !== 'mop' && atoms[i][property] !== value) break;
-    i++;
-  }
-
-  return i;
-}
-/**
- * 
- * @param {MathAtom} parent the parent or predecessor of the atom list
- * @param {MathAtom[]} atoms the list of atoms to transform to LaTeX
- * @param {boolean} expandMacro true if macros should be expanded
- * @result {string} a LaTeX string
- */
-
-
-function latexifyArray(parent, properties, atoms, expandMacro) {
-  if (atoms.length === 0) return '';
-
-  if (properties.length === 0) {
-    // We've (recursively) checked:
-    // all the atoms have the same properties
-    return atoms.map(function (x) {
-      return x.toLatex(expandMacro);
-    }).join('');
-  }
-
-  var result = '';
-  var prefix = '';
-  var suffix = '';
-  var prop = properties[0];
-  var i = findLongestRun(atoms, prop, atoms[0][prop]);
-
-  if (atoms[0].mode === 'text') {
-    if (prop === 'fontShape' && atoms[0].fontShape) {
-      if (atoms[0].fontShape === 'it') {
-        prefix = '\\textit{';
-        suffix = '}';
-      } else if (atoms[0].fontShape === 'sl') {
-        prefix = '\\textsl{';
-        suffix = '}';
-      } else if (atoms[0].fontShape === 'sc') {
-        prefix = '\\textsc{';
-        suffix = '}';
-      } else if (atoms[0].fontShape === 'n') {
-        prefix = '\\textup{';
-        suffix = '}';
-      } else {
-        prefix = '\\text{\\fontshape{' + atoms[0].fontShape + '}';
-        suffix = '}';
-      }
-    } else if (prop === 'fontSeries' && atoms[0].fontSeries) {
-      if (atoms[0].fontSeries === 'b') {
-        prefix = '\\textbf{';
-        suffix = '}';
-      } else if (atoms[0].fontSeries === 'l') {
-        prefix = '\\textlf{';
-        suffix = '}';
-      } else if (atoms[0].fontSeries === 'm') {
-        prefix = '\\textmd{';
-        suffix = '}';
-      } else {
-        prefix = '\\text{\\fontseries{' + atoms[0].fontSeries + '}';
-        suffix = '}';
-      }
-    } else if (prop === 'mode') {
-      var allAtomsHaveShapeOrSeriesOrFontFamily = true;
-
-      for (var j = 0; j < i; j++) {
-        if (!atoms[j].fontSeries && !atoms[j].fontShape && !atoms[j].fontFamily) {
-          allAtomsHaveShapeOrSeriesOrFontFamily = false;
-          break;
-        }
-      }
-
-      if (!allAtomsHaveShapeOrSeriesOrFontFamily) {
-        // Wrap in text, only if there isn't a shape or series on 
-        // all the atoms, because if so, it will be wrapped in a 
-        // \\textbf, \\textit, etc... and the \\text would be redundant
-        prefix = '\\text{';
-        suffix = '}';
-      }
-    } else if (prop === 'fontSize' && atoms[0].fontSize) {
-      var command = {
-        'size1': 'tiny',
-        'size2': 'scriptsize',
-        'size3': 'footnotesize',
-        'size4': 'small',
-        'size5': 'normalsize',
-        'size6': 'large',
-        'size7': 'Large',
-        'size8': 'LARGE',
-        'size9': 'huge',
-        'size10': 'Huge'
-      }[atoms[0].fontSize] || '';
-      prefix = '{\\' + command + ' ';
-      suffix = '}';
-    } else if (prop === 'fontFamily' && atoms[0].fontFamily) {
-      var _command = {
-        'cmr': 'textrm',
-        'cmtt': 'texttt',
-        'cmss': 'textsf'
-      }[atoms[0].fontFamily] || '';
-
-      if (!_command) {
-        prefix += '{\\fontfamily{' + atoms[0].fontFamily + '}';
-        suffix = '}';
-      } else {
-        prefix = '\\' + _command + '{';
-        suffix = '}';
-      }
-    }
-  } else if (atoms[0].mode === 'math') {
-    if (prop === 'fontSeries') {
-      if (atoms[0].fontSeries === 'b') {
-        prefix = '\\mathbf{';
-        suffix = '}';
-      } else if (atoms[0].fontSeries && atoms[0].fontSeries !== 'n') {
-        prefix = '{\\fontSeries{' + atoms[0].fontSeries + '}';
-        suffix = '}';
-      }
-    } else if (prop === 'fontShape') {
-      if (atoms[0].fontShape === 'it') {
-        prefix = '\\mathit{';
-        suffix = '}';
-      } else if (atoms[0].fontShape === 'n') {
-        prefix = "{\\upshape ";
-        suffix = '}';
-      } else if (atoms[0].fontShape && atoms[0].fontShape !== 'n') {
-        prefix = '{\\fontShape{' + atoms[0].fontShape + '}';
-        suffix = '}';
-      }
-    } else if (prop === 'fontSize' && atoms[0].fontSize) {
-      var _command2 = {
-        'size1': 'tiny',
-        'size2': 'scriptsize',
-        'size3': 'footnotesize',
-        'size4': 'small',
-        'size5': 'normalsize',
-        'size6': 'large',
-        'size7': 'Large',
-        'size8': 'LARGE',
-        'size9': 'huge',
-        'size10': 'Huge'
-      }[atoms[0].fontSize] || '';
-
-      prefix = '{\\' + _command2 + ' ';
-      suffix = '}';
-    } else if (prop === 'fontFamily' && atoms[0].fontFamily) {
-      if (!/^(math|main|mainrm)$/.test(atoms[0].fontFamily)) {
-        var _command3 = {
-          'cal': 'mathcal',
-          'frak': 'mathfrak',
-          'bb': 'mathbb',
-          'scr': 'mathscr',
-          'cmr': 'mathrm',
-          'cmtt': 'mathtt',
-          'cmss': 'mathsf'
-        }[atoms[0].fontFamily] || '';
-
-        if (!_command3) {
-          prefix += '{\\fontfamily{' + atoms[0].fontFamily + '}';
-          suffix = '}';
-        } else {
-          prefix = '\\' + _command3 + '{';
-          suffix = '}';
-        }
-      }
-    }
-  }
-
-  if (prop === 'color' && atoms[0].color && atoms[0].color !== 'none' && (!parent || parent.color !== atoms[0].color)) {
-    prefix = '\\textcolor{' + _color.default.colorToString(atoms[0].color) + '}{';
-    suffix = '}';
-  }
-
-  if (prop === 'backgroundColor' && atoms[0].backgroundColor && atoms[0].backgroundColor !== 'none' && (!parent || parent.backgroundColor !== atoms[0].backgroundColor)) {
-    prefix = '\\colorbox{' + _color.default.colorToString(atoms[0].backgroundColor) + '}{';
-    suffix = '}';
-  }
-
-  result += prefix;
-  result += latexifyArray(parent, properties.slice(1), atoms.slice(0, i), expandMacro);
-  result += suffix; // latexify the rest
-
-  result += latexifyArray(parent, properties, atoms.slice(i), expandMacro);
-  return result;
-}
-/**
- * Given an atom or an array of atoms, return a LaTeX string representation
- * @return {string}
- * @param {string|MathAtom|MathAtom[]} value
- * @private
- */
-
-
-function latexify(parent, value, expandMacro) {
-  var result = '';
-
-  if (Array.isArray(value) && value.length > 0) {
-    if (value[0].type === 'first') {
-      // Remove the 'first' atom, if present
-      value = value.slice(1);
-      if (value.length === 0) return '';
-    }
-
-    result = latexifyArray(parent, ['mode', 'fontShape', 'fontSeries', 'fontSize', 'color', 'backgroundColor', 'fontFamily'], value, expandMacro); // if (result.startsWith('{') && result.endsWith('}')) {
-    //     result = result.slice(1, result.length - 1);
-    // }
-  } else if (typeof value === 'number' || typeof value === 'boolean') {
-    result = value.toString();
-  } else if (typeof value === 'string') {
-    result = value.replace(/\s/g, '~');
-  } else if (value && typeof value.toLatex === 'function') {
-    result = value.toLatex(expandMacro);
-  }
-
-  return result;
-}
-/**
- * Return a LaTeX representation of the atom.
- *
- * @param {boolean} expandMacro - If true, macros are fully expanded. This will
- * no longer round-trip.
- *
- * @return {string}
- * @method MathAtom#toLatex
- */
-
-
-_mathAtom.default.MathAtom.prototype.toLatex = function (expandMacro) {
-  expandMacro = expandMacro === undefined ? false : expandMacro;
-  var result = '';
-  var col,
-      row = 0;
-  var i = 0;
-  var m = !this.latex ? null : this.latex.match(/^(\\[^{\s0-9]+)/);
-  var command = m ? m[1] : null;
-
-  switch (this.type) {
-    case 'group':
-      result += this.latexOpen || (this.cssId || this.cssClass ? '' : '{');
-      if (this.cssId) result += '\\cssId{' + this.cssId + '}{';
-
-      if (this.cssClass === 'ML__emph') {
-        result += '\\emph{' + latexify(this, this.body, expandMacro) + '}';
-      } else {
-        if (this.cssClass) result += '\\class{' + this.cssClass + '}{';
-        result += expandMacro ? latexify(this, this.body, true) : this.latex || latexify(this, this.body, false);
-        if (this.cssClass) result += '}';
-      }
-
-      if (this.cssId) result += '}';
-      result += this.latexClose || (this.cssId || this.cssClass ? '' : '}');
-      break;
-
-    case 'array':
-      result += '\\begin{' + this.env.name + '}';
-
-      if (this.env.name === 'array') {
-        result += '{';
-
-        if (this.colFormat) {
-          for (i = 0; i < this.colFormat.length; i++) {
-            if (this.colFormat[i].align) {
-              result += this.colFormat[i].align;
-            } else if (this.colFormat[i].rule) {
-              result += '|';
-            }
-          }
-        }
-
-        result += '}';
-      }
-
-      for (row = 0; row < this.array.length; row++) {
-        for (col = 0; col < this.array[row].length; col++) {
-          if (col > 0) result += ' & ';
-          result += latexify(this, this.array[row][col], expandMacro);
-        } // Adds a separator between rows (but not after the last row)
-
-
-        if (row < this.array.length - 1) {
-          result += ' \\\\ ';
-        }
-      }
-
-      result += '\\end{' + this.env.name + '}';
-      break;
-
-    case 'root':
-      result = latexify(this, this.body, expandMacro);
-      break;
-
-    case 'genfrac':
-      if (/^(choose|atop|over)$/.test(this.body)) {
-        // Infix commands.
-        result += '{';
-        result += latexify(this, this.numer, expandMacro);
-        result += '\\' + this.body + ' ';
-        result += latexify(this, this.denom, expandMacro);
-        result += '}';
-      } else {
-        // @todo: deal with fracs delimiters
-        result += command;
-        result += "{".concat(latexify(this, this.numer, expandMacro), "}{").concat(latexify(this, this.denom, expandMacro), "}");
-      }
-
-      break;
-
-    case 'surd':
-      result += '\\sqrt';
-
-      if (this.index) {
-        result += '[';
-        result += latexify(this, this.index, expandMacro);
-        result += ']';
-      }
-
-      result += "{".concat(latexify(this, this.body, expandMacro), "}");
-      break;
-
-    case 'leftright':
-      if (this.inner) {
-        result += '\\left' + (this.leftDelim || '.');
-        if (this.leftDelim && this.leftDelim.length > 1) result += ' ';
-        result += latexify(this, this.body, expandMacro);
-        result += '\\right' + (this.rightDelim || '.');
-        if (this.rightDelim && this.rightDelim.length > 1) result += ' ';
-      } else {
-        result += '\\mleft' + (this.leftDelim || '.');
-        if (this.leftDelim && this.leftDelim.length > 1) result += ' ';
-        result += latexify(this, this.body, expandMacro);
-        result += '\\mright' + (this.rightDelim || '.');
-        if (this.rightDelim && this.rightDelim.length > 1) result += ' ';
-      }
-
-      break;
-
-    case 'delim':
-    case 'sizeddelim':
-      result += command + '{' + this.delim + '}';
-      break;
-
-    case 'rule':
-      result += command;
-
-      if (this.shift) {
-        result += "[".concat(latexify(this, this.shift, expandMacro), "em]");
-      }
-
-      result += "{".concat(latexify(this, this.width, expandMacro), "em}{").concat(latexify(this, this.height, expandMacro), "em}");
-      break;
-
-    case 'line':
-    case 'overlap':
-    case 'accent':
-      result += "".concat(command, "{").concat(latexify(this, this.body, expandMacro), "}");
-      break;
-
-    case 'overunder':
-      result += "".concat(command, "{").concat(latexify(this, this.overscript || this.underscript, expandMacro), "}{").concat(latexify(parent, this.body, expandMacro), "}");
-      break;
-
-    case 'mord':
-    case 'minner':
-    case 'mbin':
-    case 'mrel':
-    case 'mpunct':
-    case 'mopen':
-    case 'mclose':
-    case 'textord':
-    case '':
-      // mode = text
-      if (/^\\(mathbin|mathrel|mathopen|mathclose|mathpunct|mathord|mathinner)/.test(command)) {
-        result += command + '{' + latexify(this, this.body, expandMacro) + '}';
-      } else if (command === '\\char"') {
-        result += this.latex + ' ';
-      } else if (command === "\\unicode") {
-        result += "\\unicode{\"";
-        result += ('000000' + this.body.charCodeAt(0).toString(16)).toUpperCase().substr(-6);
-        result += '}';
-      } else if (this.latex || typeof this.body === 'string') {
-        // Not ZERO-WIDTH
-        if (this.latex && this.latex[0] === '\\') {
-          result += this.latex;
-
-          if (/[a-zA-Z0-9]$/.test(this.latex)) {
-            result += ' ';
-          }
-        } else if (command) {
-          result += command;
-        } else {
-          result += this.body !== "\u200B" ? this.latex || this.body : '';
-        }
-      }
-
-      break;
-
-    case 'mop':
-      if (this.body !== "\u200B") {
-        // Not ZERO-WIDTH
-        if (command === '\\mathop') {
-          // The argument to mathop is math, therefor this.body can be an expression
-          result += command + '{' + latexify(this, this.body, expandMacro) + '}';
-        } else if (command === '\\operatorname') {
-          // The argument to operator name is text, therefore this.body is a string
-          result += command + '{' + this.body + '}';
-        } else {
-          if (this.latex && this.latex[0] === '\\') {
-            result += this.latex;
-
-            if (/[a-zA-Z0-9]$/.test(this.latex)) {
-              result += ' ';
-            }
-          } else if (command) {
-            result += command;
-          } else {
-            result += this.body !== "\u200B" ? this.latex || this.body : '';
-          }
-        }
-      }
-
-      if (this.explicitLimits) {
-        if (this.limits === 'limits') result += '\\limits ';
-        if (this.limits === 'nolimits') result += '\\nolimits ';
-      }
-
-      break;
-
-    case 'box':
-      if (command === '\\bbox') {
-        result += command;
-
-        if (isFinite(this.padding) || typeof this.border !== 'undefined' || typeof this.backgroundcolor !== 'undefined') {
-          var bboxParams = [];
-
-          if (isFinite(this.padding)) {
-            bboxParams.push(Math.floor(1e2 * this.padding) / 1e2 + 'em');
-          }
-
-          if (this.border) {
-            bboxParams.push('border:' + this.border);
-          }
-
-          if (this.backgroundcolor) {
-            bboxParams.push(_color.default.colorToString(this.backgroundcolor));
-          }
-
-          result += "[".concat(bboxParams.join(','), "]");
-        }
-
-        result += "{".concat(latexify(this, this.body, expandMacro), "}");
-      } else if (command === '\\boxed') {
-        result += "\\boxed{".concat(latexify(this, this.body, expandMacro), "}");
-      } else {
-        // \\colorbox, \\fcolorbox
-        result += command;
-
-        if (this.framecolor) {
-          result += "{".concat(_color.default.colorToString(this.framecolor), "}");
-        }
-
-        if (this.backgroundcolor) {
-          result += "{".concat(_color.default.colorToString(this.backgroundcolor), "}");
-        }
-
-        result += "{".concat(latexify(this, this.body, expandMacro), "}");
-      }
-
-      break;
-
-    case 'spacing':
-      // Three kinds of spacing commands:
-      // \hskip and \kern which take one implicit parameter
-      // \hspace and hspace* with take one *explicit* parameter
-      // \quad, etc... which take no parameters.
-      result += command;
-
-      if (command === '\\hspace' || command === '\\hspace*') {
-        result += '{';
-
-        if (this.width) {
-          result += this.width + 'em';
-        } else {
-          result += '0em';
-        }
-
-        result += '}';
-      } else {
-        result += ' ';
-
-        if (this.width) {
-          result += this.width + 'em ';
-        }
-      }
-
-      break;
-
-    case 'enclose':
-      result += command;
-
-      if (command === '\\enclose') {
-        result += '{';
-        var sep = '';
-
-        for (var notation in this.notation) {
-          if (this.notation.hasOwnProperty(notation) && this.notation[notation]) {
-            result += sep + notation;
-            sep = ' ';
-          }
-        }
-
-        result += '}'; // \enclose can have optional parameters...
-
-        var style = '';
-        sep = '';
-
-        if (this.backgroundcolor && this.backgroundcolor !== 'transparent') {
-          style += sep + 'mathbackground="' + _color.default.colorToString(this.backgroundcolor) + '"';
-          sep = ',';
-        }
-
-        if (this.shadow && this.shadow !== 'auto') {
-          style += sep + 'shadow="' + this.shadow + '"';
-          sep = ',';
-        }
-
-        if (this.strokeWidth !== 1 || this.strokeStyle !== 'solid') {
-          style += sep + this.borderStyle;
-          sep = ',';
-        } else if (this.strokeColor && this.strokeColor !== 'currentColor') {
-          style += sep + 'mathcolor="' + _color.default.colorToString(this.strokeColor) + '"';
-          sep = ',';
-        }
-
-        if (style) {
-          result += "[".concat(style, "]");
-        }
-      }
-
-      result += "{".concat(latexify(this, this.body, expandMacro), "}");
-      break;
-
-    case 'mathstyle':
-      result += '\\' + this.mathstyle + ' ';
-      break;
-
-    case 'space':
-      result += this.latex;
-      break;
-
-    case 'placeholder':
-      result += '\\placeholder{' + (this.value || '') + '}';
-      break;
-
-    case 'first':
-    case 'command':
-    case 'msubsup':
-      break;
-
-    case 'error':
-      result += this.latex;
-      break;
-
-    default:
-      console.warn('Unexpected atom type "' + this.type + '" in "' + (this.latex || this.value) + '"');
-      break;
-  }
-
-  if (this.superscript) {
-    var sup = latexify(this, this.superscript, expandMacro);
-
-    if (sup.length === 1) {
-      if (sup === "\u2032") {
-        // PRIME
-        sup = '\\prime ';
-      } else if (sup === "\u2033") {
-        // DOUBLE-PRIME
-        sup = '\\doubleprime ';
-      }
-
-      result += '^' + sup;
-    } else {
-      result += '^{' + sup + '}';
-    }
-  }
-
-  if (this.subscript) {
-    var sub = latexify(this, this.subscript, expandMacro);
-
-    if (sub.length === 1) {
-      result += '_' + sub;
-    } else {
-      result += '_{' + sub + '}';
-    }
-  }
-
-  return result;
-}; // Export the public interface for this module
-
-
-var _default = {};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/addons/outputMathML.js b/dist/addons/outputMathML.js
deleted file mode 100644
index 059849a00..000000000
--- a/dist/addons/outputMathML.js
+++ /dev/null
@@ -1,887 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
-
-var _color = _interopRequireDefault(require("../core/color.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/**
- * 
- * This module outputs a formula to MathML.
- * 
- * To use it, use the {@linkcode MathAtom#toMathML MathAtom.toMathML()}  method.
- * 
- * @module addons/outputMathML
- * @private
- */
-var SPECIAL_OPERATORS = {
-  '\\pm': '&#x00b1;',
-  '\\times': '&#x00d7;',
-  '\\colon': ':',
-  '\\vert': '|',
-  '\\Vert': "\u2225",
-  '\\mid': "\u2223",
-  '\\lbrace': '{',
-  '\\rbrace': '}',
-  '\\langle': "\u27E8",
-  '\\rangle': "\u27E9",
-  '\\lfloor': "\u230A",
-  '\\rfloor': "\u230B",
-  '\\lceil': "\u2308",
-  '\\rceil': "\u2309",
-  '\\vec': '&#x20d7;',
-  '\\acute': '&#x00b4;',
-  '\\grave': '&#x0060;',
-  '\\dot': '&#x02d9;',
-  '\\ddot': '&#x00a8;',
-  '\\tilde': '&#x007e;',
-  '\\bar': '&#x00af;',
-  '\\breve': '&#x02d8;',
-  '\\check': '&#x02c7;',
-  '\\hat': '&#x005e;'
-};
-
-function xmlEscape(str) {
-  return str // .replace(/&/g, '&amp;')
-  .replace(/"/g, '&quot;').replace(/'/g, '&#39;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
-}
-
-function makeID(id, options) {
-  if (!id || !options.generateID) return ''; // Note: the 'extid' attribute is recognized by SRE as an attribute
-  // to be passed to SSML as a <mark> tag.
-
-  return ' extid="' + id + '"';
-}
-
-function scanIdentifier(stream, final, options) {
-  var result = false;
-  final = final || stream.atoms.length;
-  var mathML = '';
-  var body = '';
-  var superscript = -1;
-  var subscript = -1;
-  var atom = stream.atoms[stream.index];
-
-  if (stream.index < final && (atom.type === 'mord' || atom.type === 'textord') && '0123456789,.'.indexOf(atom.body) < 0) {
-    body = atom.toMathML(options);
-
-    if (atom.superscript) {
-      superscript = stream.index;
-    }
-
-    if (atom.subscript) {
-      subscript = stream.index;
-    }
-
-    stream.index += 1;
-  }
-
-  if (body.length > 0) {
-    result = true; // If there are separate atoms for sub/sup, record them
-
-    if (isSuperscriptAtom(stream)) {
-      superscript = stream.index;
-      stream.index += 1;
-    }
-
-    if (isSubscriptAtom(stream)) {
-      subscript = stream.index;
-      stream.index += 1;
-    }
-
-    if (superscript >= 0 && subscript >= 0) {
-      mathML = '<msubsup>' + body;
-      mathML += toMathML(stream.atoms[subscript].subscript, 0, 0, options).mathML;
-      mathML += toMathML(stream.atoms[superscript].superscript, 0, 0, options).mathML;
-      mathML += '</msubsup>';
-    } else if (superscript >= 0) {
-      mathML = '<msup>' + body;
-
-      if (isSuperscriptAtom(stream)) {
-        // There's another superscript after this one. Maybe double-prime?
-        var sup = toMathML(stream.atoms[superscript].superscript, 0, 0, options).mathML;
-        var sup2 = toMathML(stream.atoms[superscript + 1].superscript, 0, 0, options).mathML;
-
-        if ((sup === "<mi>\u2032</mi>" || sup === '<mi>&#x2032;</mi>') && (sup2 === "<mi>\u2032</mi>" || sup2 === '<mi>&#x2032;</mi>')) {
-          mathML += '<mi>&#x2033;</mi>';
-        } else if (sup === "<mi>\u2032</mi>" || sup === '<mi>&#x2032;</mi>') {
-          mathML += '<mi>&#x2032;</mi>';
-        } else {
-          mathML += sup;
-        }
-      } else {
-        mathML += toMathML(stream.atoms[superscript].superscript, 0, 0, options).mathML;
-      }
-
-      mathML += '</msup>';
-    } else if (subscript >= 0) {
-      mathML = '<msub>' + body;
-      mathML += toMathML(stream.atoms[subscript].subscript, 0, 0, options).mathML;
-      mathML += '</msub>';
-    } else {
-      mathML = body;
-    }
-
-    if ((stream.lastType === 'mi' || stream.lastType === 'mn' || stream.lastType === 'mtext' || stream.lastType === 'fence') && !/^<mo>(.*)<\/mo>$/.test(mathML)) {
-      mathML = '<mo>&#x2062;</mo>' + mathML; // INVISIBLE TIMES
-    }
-
-    if (body.endsWith('>f</mi>') || body.endsWith('>g</mi>')) {
-      mathML += '<mo>&#x2061;</mo>'; // APPLY FUNCTION
-
-      stream.lastType = 'applyfunction';
-    } else {
-      stream.lastType = /^<mo>(.*)<\/mo>$/.test(mathML) ? 'mo' : 'mi';
-    }
-
-    stream.mathML += mathML;
-  }
-
-  return result;
-}
-/**
- * Return true if the current atom is a standalone superscript atom
- * i.e. an atom with no content, except of a superscript.
- * Superscripts can be encoded either as an attribute on the last atom
- * or as a standalone, empty, atom following the one to which it applies.
- * @param {object} stream
- */
-
-
-function isSuperscriptAtom(stream) {
-  return stream.index < stream.atoms.length && stream.atoms[stream.index].superscript && stream.atoms[stream.index].type === 'msubsup';
-}
-
-function isSubscriptAtom(stream) {
-  return stream.index < stream.atoms.length && stream.atoms[stream.index].subscript && stream.atoms[stream.index].type === 'msubsup';
-}
-
-function indexOfSuperscriptInNumber(stream) {
-  var result = -1;
-  var i = stream.index;
-  var done = false;
-  var found = false;
-
-  while (i < stream.atoms.length && !done && !found) {
-    done = stream.atoms[i].type !== 'mord' || '0123456789,.'.indexOf(stream.atoms[i].body) < 0;
-    found = !done && stream.atoms[i].superscript;
-    i++;
-  }
-
-  if (found) {
-    result = i - 1;
-  }
-
-  return result;
-}
-
-function parseSubsup(base, stream, options) {
-  var result = false;
-  var mathML = '';
-  var atom = stream.atoms[stream.index - 1];
-  if (!atom) return false;
-
-  if (!atom.superscript && !atom.subscript) {
-    if (isSuperscriptAtom(stream) || isSubscriptAtom(stream)) {
-      atom = stream.atoms[stream.index];
-      stream.index += 1;
-    }
-  }
-
-  if (!atom) return false;
-
-  if (atom.superscript && atom.subscript) {
-    mathML = '<msubsup>' + base;
-    mathML += toMathML(atom.subscript, 0, 0, options).mathML;
-    mathML += toMathML(atom.superscript, 0, 0, options).mathML;
-    mathML += '</msubsup>';
-  } else if (atom.superscript) {
-    mathML = '<msup>' + base;
-    mathML += toMathML(atom.superscript, 0, 0, options).mathML;
-    mathML += '</msup>';
-  } else if (atom.subscript) {
-    mathML = '<msub>' + base;
-    mathML += toMathML(atom.subscript, 0, 0, options).mathML;
-    mathML += '</msub>';
-  }
-
-  if (mathML.length > 0) {
-    result = true;
-    stream.mathML += mathML;
-    stream.lastType = '';
-  }
-
-  return result;
-}
-
-function scanText(stream, final, options) {
-  var result = false;
-  final = final || stream.atoms.length;
-  var initial = stream.index;
-  var mathML = '';
-
-  while (stream.index < final && stream.atoms[stream.index].mode === 'text') {
-    mathML += stream.atoms[stream.index].body ? stream.atoms[stream.index].body : ' ';
-    stream.index += 1;
-  }
-
-  if (mathML.length > 0) {
-    result = true;
-    mathML = '<mtext' + makeID(stream.atoms[initial].id, options) + '>' + mathML + '</mtext>';
-    stream.mathML += mathML;
-    stream.lastType = 'mtext';
-  }
-
-  return result;
-}
-
-function scanNumber(stream, final, options) {
-  var result = false;
-  final = final || stream.atoms.length;
-  var initial = stream.index;
-  var mathML = '';
-  var superscript = indexOfSuperscriptInNumber(stream);
-
-  if (superscript >= 0 && superscript < final) {
-    final = superscript;
-  }
-
-  while (stream.index < final && stream.atoms[stream.index].type === 'mord' && '0123456789,.'.indexOf(stream.atoms[stream.index].body) >= 0) {
-    mathML += stream.atoms[stream.index].body;
-    stream.index += 1;
-  }
-
-  if (mathML.length > 0) {
-    result = true;
-    mathML = '<mn' + makeID(stream.atoms[initial].id, options) + '>' + mathML + '</mn>';
-
-    if (superscript < 0 && isSuperscriptAtom(stream)) {
-      superscript = stream.index;
-      stream.index += 1;
-    }
-
-    if (superscript >= 0) {
-      mathML = '<msup>' + mathML;
-      mathML += toMathML(stream.atoms[superscript].superscript, 0, 0, options).mathML;
-      mathML += '</msup>';
-    }
-
-    stream.mathML += mathML;
-    stream.lastType = 'mn';
-  }
-
-  return result;
-}
-
-function scanFence(stream, final, options) {
-  var result = false;
-  final = final || stream.atoms.length;
-  var mathML = '';
-  var lastType = '';
-
-  if (stream.index < final && stream.atoms[stream.index].type === 'mopen') {
-    var found = false;
-    var depth = 0;
-    var openIndex = stream.index;
-    var closeIndex = -1;
-    var index = openIndex + 1;
-
-    while (index < final && !found) {
-      if (stream.atoms[index].type === 'mopen') {
-        depth += 1;
-      } else if (stream.atoms[index].type === 'mclose') {
-        depth -= 1;
-      }
-
-      if (depth === -1) {
-        found = true;
-        closeIndex = index;
-      }
-
-      index += 1;
-    }
-
-    if (found) {
-      // TODO: could add attribute indicating it's a fence (fence=true)
-      mathML = '<mrow>';
-      mathML += toMo(stream.atoms[openIndex], options);
-      mathML += toMathML(stream.atoms, openIndex + 1, closeIndex, options).mathML; // TODO: could add attribute indicating it's a fence (fence=true)
-
-      mathML += toMo(stream.atoms[closeIndex], options);
-      mathML += '</mrow>';
-
-      if (stream.lastType === 'mi' || stream.lastType === 'mn' || stream.lastType === 'mfrac' || stream.lastType === 'fence') {
-        mathML = '<mo>&#x2062;</mo>' + mathML; // INVISIBLE TIMES
-      }
-
-      stream.index = closeIndex + 1;
-
-      if (parseSubsup(mathML, stream, options)) {
-        result = true;
-        stream.lastType = '';
-        mathML = '';
-      }
-
-      lastType = 'fence';
-    }
-  }
-
-  if (mathML.length > 0) {
-    result = true;
-    stream.mathML += mathML;
-    stream.lastType = lastType;
-  }
-
-  return result;
-}
-
-function scanOperator(stream, final, options) {
-  var result = false;
-  final = final || stream.atoms.length;
-  var mathML = '';
-  var lastType = '';
-  var atom = stream.atoms[stream.index];
-
-  if (stream.index < final && (atom.type === 'mbin' || atom.type === 'mrel')) {
-    mathML += stream.atoms[stream.index].toMathML(options);
-    stream.index += 1;
-    lastType = 'mo';
-  } else if (stream.index < final && atom.type === 'mop') {
-    // mathML += '<mrow>';
-    if (atom.limits === 'limits' && (atom.superscript || atom.subscript)) {
-      // Operator with limits, e.g. \sum
-      var op = toMo(atom, options);
-
-      if (atom.superscript && atom.subscript) {
-        // Both superscript and subscript
-        mathML += (atom.limits !== 'nolimits' ? '<munderover>' : '<msubsup>') + op;
-        mathML += toMathML(atom.subscript, 0, 0, options).mathML;
-        mathML += toMathML(atom.superscript, 0, 0, options).mathML;
-        mathML += atom.limits !== 'nolimits' ? '</munderover>' : '</msubsup>';
-      } else if (atom.superscript) {
-        // Superscript only
-        mathML += (atom.limits !== 'nolimits' ? '<mover>' : '<msup>') + op;
-        mathML += toMathML(atom.superscript, 0, 0, options).mathML;
-        mathML += atom.limits !== 'nolimits' ? '</mover>' : '</msup>';
-      } else {
-        // Subscript only
-        mathML += (atom.limits !== 'nolimits' ? '<munder>' : '<msub>') + op;
-        mathML += toMathML(atom.subscript, 0, 0, options).mathML;
-        mathML += atom.limits !== 'nolimits' ? '</munder>' : '</msub>';
-      }
-
-      lastType = 'mo';
-    } else {
-      var _atom = stream.atoms[stream.index];
-      var isUnit = _atom.latex.indexOf('\\operatorname') === 0;
-
-      var _op = isUnit ? '<mi class="MathML-Unit"' + makeID(_atom.id, options) + '>' + toString(_atom.body) + '</mi>' : toMo(_atom, options);
-
-      mathML += _op;
-      stream.index += 1;
-
-      if (parseSubsup(mathML, stream, options)) {
-        result = true;
-        stream.lastType = '';
-        mathML = '';
-      }
-
-      stream.index -= 1;
-
-      if (!isUnit && !/^<mo>(.*)<\/mo>$/.test(_op)) {
-        mathML += '<mo>&#x2061;</mo>'; // APPLY FUNCTION
-        // mathML += scanArgument(stream);
-
-        lastType = 'applyfunction';
-      } else {
-        lastType = isUnit ? 'mi' : 'mo';
-      }
-    } // mathML += '</mrow>';
-
-
-    if ((stream.lastType === 'mi' || stream.lastType === 'mn') && !/^<mo>(.*)<\/mo>$/.test(mathML)) {
-      mathML = '<mo>&#x2062;</mo>' + mathML; // INVISIBLE TIMES
-    }
-
-    stream.index += 1;
-  }
-
-  if (mathML.length > 0) {
-    result = true;
-    stream.mathML += mathML;
-    stream.lastType = lastType;
-  }
-
-  return result;
-}
-/**
- * Given an atom or an array of atoms, return their MathML representation as
- * a string.
- * @return {string}
- * @param {string|MathAtom|MathAtom[]} input
- * @param {number} initial index of the input to start conversion from
- * @param {number} final last index of the input to stop conversion to
- * @private
- */
-
-
-function toMathML(input, initial, final, options) {
-  var result = {
-    atoms: input,
-    index: initial || 0,
-    mathML: '',
-    lastType: ''
-  };
-  final = final || (input ? input.length : 0);
-
-  if (typeof input === 'number' || typeof input === 'boolean') {
-    result.mathML = input.toString();
-  } else if (typeof input === 'string') {
-    result.mathML = input;
-  } else if (input && typeof input.toMathML === 'function') {
-    result.mathML = input.toMathML(options);
-  } else if (Array.isArray(input)) {
-    var count = 0;
-
-    while (result.index < final) {
-      if (scanText(result, final, options) || scanNumber(result, final, options) || scanIdentifier(result, final, options) || scanOperator(result, final, options) || scanFence(result, final, options)) {
-        count += 1;
-      } else if (result.index < final) {
-        var mathML = result.atoms[result.index].toMathML(options);
-
-        if (result.lastType === 'mn' && mathML.length > 0 && result.atoms[result.index].type === 'genfrac') {
-          // If this is a fraction preceded by a number (e.g. 2 1/2),
-          // add an "invisible plus" (U+0264) character in front of it
-          mathML = '<mo>&#x2064;</mo>' + mathML;
-        }
-
-        if (result.atoms[result.index].type === 'genfrac') {
-          result.lastType = 'mfrac';
-        } else {
-          result.lastType = '';
-        }
-
-        if (mathML.length > 0) {
-          result.mathML += mathML;
-          count += 1;
-        }
-
-        result.index += 1;
-      }
-    } // If there are more than a single element, wrap them in a mrow tag.
-
-
-    if (count > 1) {
-      result.mathML = '<mrow>' + result.mathML + '</mrow>';
-    }
-  }
-
-  return result;
-}
-
-function toMo(atom, options) {
-  var result = '';
-  var body = toString(atom.body);
-
-  if (body) {
-    result = '<mo' + makeID(atom.id, options) + '>' + body + '</mo>';
-  }
-
-  return result;
-}
-
-function toString(atoms) {
-  if (!atoms) return '';
-  if (typeof atoms === 'string') return xmlEscape(atoms);
-
-  if (!Array.isArray(atoms) && typeof atoms.body === 'string') {
-    return xmlEscape(atoms.body);
-  }
-
-  var result = '';
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
-
-  try {
-    for (var _iterator = atoms[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var atom = _step.value;
-
-      if (typeof atom.body === 'string') {
-        result += atom.body;
-      }
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator.return != null) {
-        _iterator.return();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
-    }
-  }
-
-  return xmlEscape(result);
-}
-/**
- * Return a MathML fragment representation of a single atom
- *
- * @return {string}
- */
-
-
-_mathAtom.default.MathAtom.prototype.toMathML = function (options) {
-  var SPECIAL_IDENTIFIERS = {
-    '\\exponentialE': '&#x02147;',
-    '\\imaginaryI': '&#x2148;',
-    '\\differentialD': '&#x2146;',
-    '\\capitalDifferentialD': '&#x2145;',
-    '\\alpha': '&#x03b1;',
-    '\\pi': '&#x03c0;',
-    '\\infty': '&#x221e;',
-    '\\forall': '&#x2200;',
-    '\\nexists': '&#x2204;',
-    '\\exists': '&#x2203;',
-    '\\hbar': "\u210F",
-    '\\cdotp': "\u22C5",
-    '\\ldots': "\u2026",
-    '\\cdots': "\u22EF",
-    '\\ddots': "\u22F1",
-    '\\vdots': "\u22EE",
-    '\\ldotp': "." // TODO: include all the 'textord' that are identifiers, not operators.
-
-  };
-  var MATH_VARIANTS = {
-    'cal': 'script',
-    'frak': 'fraktur',
-    'bb': 'double-struck',
-    'scr': 'script',
-    'cmtt': 'monospace',
-    'cmss': 'sans-serif'
-  };
-  var SPACING = {
-    '\\!': -3 / 18,
-    '\\ ': 6 / 18,
-    '\\,': 3 / 18,
-    '\\:': 4 / 18,
-    '\\;': 5 / 18,
-    '\\enspace': .5,
-    '\\quad': 1,
-    '\\qquad': 2,
-    '\\enskip': .5
-  };
-  var result = '';
-  var sep = '';
-  var col, row, i;
-  var underscript, overscript, body;
-  var variant = MATH_VARIANTS[this.fontFamily || this.font] || '';
-
-  if (variant) {
-    variant = ' mathvariant="' + variant + '"';
-  }
-
-  var command = this.latex ? this.latex.trim() : null;
-  var m;
-
-  switch (this.type) {
-    case 'group':
-    case 'root':
-      result = toMathML(this.body, 0, 0, options).mathML;
-      break;
-
-    case 'array':
-      if (this.lFence && this.lFence !== '.' || this.rFence && this.rFence !== '.') {
-        result += '<mrow>';
-
-        if (this.lFence && this.lFence !== '.') {
-          result += '<mo>' + (SPECIAL_OPERATORS[this.lFence] || this.lFence) + '</mo>';
-        }
-      }
-
-      result += '<mtable';
-
-      if (this.colFormat) {
-        result += ' columnalign="';
-
-        for (i = 0; i < this.colFormat.length; i++) {
-          if (this.colFormat[i].align) {
-            result += {
-              l: 'left',
-              c: 'center',
-              r: 'right'
-            }[this.colFormat[i].align] + ' ';
-          }
-        }
-
-        result += '"';
-      }
-
-      result += '>';
-
-      for (row = 0; row < this.array.length; row++) {
-        result += '<mtr>';
-
-        for (col = 0; col < this.array[row].length; col++) {
-          result += '<mtd>' + toMathML(this.array[row][col], 0, 0, options).mathML + '</mtd>';
-        }
-
-        result += '</mtr>';
-      }
-
-      result += '</mtable>';
-
-      if (this.lFence && this.lFence !== '.' || this.rFence && this.rFence !== '.') {
-        if (this.rFence && this.rFence !== '.') {
-          result += '<mo>' + (SPECIAL_OPERATORS[this.lFence] || this.rFence) + '</mo>';
-        }
-
-        result += '</mrow>';
-      }
-
-      break;
-
-    case 'genfrac':
-      if (this.leftDelim || this.rightDelim) {
-        result += '<mrow>';
-      }
-
-      if (this.leftDelim && this.leftDelim !== '.') {
-        result += '<mo' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[this.leftDelim] || this.leftDelim) + '</mo>';
-      }
-
-      if (this.hasBarLine) {
-        result += '<mfrac>';
-        result += toMathML(this.numer, 0, 0, options).mathML || '<mi>&nbsp;</mi>';
-        result += toMathML(this.denom, 0, 0, options).mathML || '<mi>&nbsp;</mi>';
-        result += '</mfrac>';
-      } else {
-        // No bar line, i.e. \choose, etc...
-        result += '<mtable' + makeID(this.id, options) + '>';
-        result += '<mtr>' + toMathML(this.numer, 0, 0, options).mathML + '</mtr>';
-        result += '<mtr>' + toMathML(this.denom, 0, 0, options).mathML + '</mtr>';
-        result += '</mtable>';
-      }
-
-      if (this.rightDelim && this.rightDelim !== '.') {
-        result += '<mo' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[this.rightDelim] || this.rightDelim) + '</mo>';
-      }
-
-      if (this.leftDelim || this.rightDelim) {
-        result += '</mrow>';
-      }
-
-      break;
-
-    case 'surd':
-      if (this.index) {
-        result += '<mroot' + makeID(this.id, options) + '>';
-        result += toMathML(this.body, 0, 0, options).mathML;
-        result += toMathML(this.index, 0, 0, options).mathML;
-        result += '</mroot>';
-      } else {
-        result += '<msqrt' + makeID(this.id, options) + '>';
-        result += toMathML(this.body, 0, 0, options).mathML;
-        result += '</msqrt>';
-      }
-
-      break;
-
-    case 'leftright':
-      // TODO: could add fence=true attribute
-      result = '<mrow>';
-
-      if (this.leftDelim && this.leftDelim !== '.') {
-        result += '<mo' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[this.leftDelim] || this.leftDelim) + '</mo>';
-      }
-
-      if (this.body) result += toMathML(this.body, 0, 0, options).mathML;
-
-      if (this.rightDelim && this.rightDelim !== '.') {
-        result += '<mo' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[this.rightDelim] || this.rightDelim) + '</mo>';
-      }
-
-      result += '</mrow>';
-      break;
-
-    case 'sizeddelim':
-    case 'delim':
-      result += '<mo separator="true"' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[this.delim] || this.delim) + '</mo>';
-      break;
-
-    case 'accent':
-      result += '<mover accent="true"' + makeID(this.id, options) + '>';
-      result += toMathML(this.body, 0, 0, options).mathML;
-      result += '<mo>' + (SPECIAL_OPERATORS[command] || this.accent) + '</mo>';
-      result += '</mover>';
-      break;
-
-    case 'line':
-    case 'overlap':
-      break;
-
-    case 'overunder':
-      overscript = this.overscript;
-      underscript = this.underscript;
-
-      if (overscript && underscript) {
-        body = this.body;
-      } else if (overscript) {
-        body = this.body;
-
-        if (this.body[0] && this.body[0].underscript) {
-          underscript = this.body[0].underscript;
-          body = this.body[0].body;
-        } else if (this.body[0] && this.body[0].type === 'first' && this.body[1] && this.body[1].underscript) {
-          underscript = this.body[1].underscript;
-          body = this.body[1].body;
-        }
-      } else if (underscript) {
-        body = this.body;
-
-        if (this.body[0] && this.body[0].overscript) {
-          overscript = this.body[0].overscript;
-          body = this.body[0].body;
-        } else if (this.body[0] && this.body[0].type === 'first' && this.body[1] && this.body[1].overscript) {
-          overscript = this.body[1].overscript;
-          body = this.body[1].body;
-        }
-      }
-
-      if (overscript && underscript) {
-        result += '<munderover' + variant + makeID(this.id, options) + '>' + toMathML(body, 0, 0, options).mathML;
-        result += toMathML(underscript, 0, 0, options).mathML;
-        result += toMathML(overscript, 0, 0, options).mathML;
-        result += '</munderover>';
-      } else if (overscript) {
-        result += '<mover' + variant + makeID(this.id, options) + '>' + toMathML(body, options).mathML;
-        result += toMathML(overscript, 0, 0, options).mathML;
-        result += '</mover>';
-      } else if (underscript) {
-        result += '<munder' + variant + makeID(this.id, options) + '>' + toMathML(body, options).mathML;
-        result += toMathML(underscript, 0, 0, options).mathML;
-        result += '</munder>';
-      }
-
-      break;
-
-    case 'mord':
-      result = SPECIAL_IDENTIFIERS[command] || command || (typeof this.body === 'string' ? this.body : '');
-      m = command ? command.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) : null;
-
-      if (m) {
-        // It's a \char command
-        result = '&#x' + m[1] + ';';
-      } else if (result.length > 0 && result.charAt(0) === '\\') {
-        // This is an identifier with no special handling. Use the
-        // Unicode value
-        if (typeof this.body === 'string' && this.body.charCodeAt(0) > 255) {
-          result = '&#x' + ('000000' + this.body.charCodeAt(0).toString(16)).substr(-4) + ';';
-        } else if (typeof this.body === 'string') {
-          result = this.body.charAt(0);
-        } else {
-          result = this.body;
-        }
-      }
-
-      result = '<mi' + variant + makeID(this.id, options) + '>' + xmlEscape(result) + '</mi>';
-      break;
-
-    case 'mbin':
-    case 'mrel':
-    case 'textord':
-    case 'minner':
-      if (command && SPECIAL_IDENTIFIERS[command]) {
-        // Some 'textord' are actually identifiers. Check them here.
-        result = '<mi' + makeID(this.id, options) + '>' + SPECIAL_IDENTIFIERS[command] + '</mi>';
-      } else if (command && SPECIAL_OPERATORS[command]) {
-        result = '<mo' + makeID(this.id, options) + '>' + SPECIAL_OPERATORS[command] + '</mo>';
-      } else {
-        result = toMo(this, options);
-      }
-
-      break;
-
-    case 'mpunct':
-      result = '<mo separator="true"' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[command] || command) + '</mo>';
-      break;
-
-    case 'mop':
-      if (this.body !== "\u200B") {
-        // Not ZERO-WIDTH
-        result = '<mo' + makeID(this.id, options) + '>';
-
-        if (command === '\\operatorname') {
-          result += this.body;
-        } else {
-          result += command || this.body;
-        }
-
-        result += '</mo>';
-      }
-
-      break;
-
-    case 'mathstyle':
-      // TODO: mathstyle is a switch. Need to figure out its scope to properly wrap it around a <mstyle> tag
-      // if (this.mathstyle === 'displaystyle') {
-      //     result += '<mstyle displaystyle="true">';
-      //     result += '</mstyle>';
-      // } else {
-      //     result += '<mstyle displaystyle="false">';
-      //     result += '</mstyle>';
-      // };
-      break;
-
-    case 'box':
-      result = '<menclose notation="box"';
-
-      if (this.backgroundcolor) {
-        result += ' mathbackground="' + _color.default.stringToColor(this.backgroundcolor) + '"';
-      }
-
-      result += makeID(this.id, options) + '>' + toMathML(this.body, 0, 0, options).mathML + '</menclose>';
-      break;
-
-    case 'spacing':
-      result += '<mspace width="' + (SPACING[command] || 0) + 'em"/>';
-      break;
-
-    case 'enclose':
-      result = '<menclose notation="';
-
-      for (var notation in this.notation) {
-        if (this.notation.hasOwnProperty(notation) && this.notation[notation]) {
-          result += sep + notation;
-          sep = ' ';
-        }
-      }
-
-      result += makeID(this.id, options) + '">' + toMathML(this.body, 0, 0, options).mathML + '</menclose>';
-      break;
-
-    case 'space':
-      result += '&nbsp;';
-      break;
-  }
-
-  return result;
-};
-
-_mathAtom.default.toMathML = function (atoms, options) {
-  return toMathML(atoms, 0, 0, options).mathML;
-}; // Export the public interface for this module
-
-
-var _default = {};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/addons/outputSpokenText.js b/dist/addons/outputSpokenText.js
deleted file mode 100644
index 50e1248ed..000000000
--- a/dist/addons/outputSpokenText.js
+++ /dev/null
@@ -1,692 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
-
-var _editorPopover = _interopRequireDefault(require("../editor/editor-popover.js"));
-
-require("../core/definitions.js");
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-// Markup
-// Two common flavor of markups: SSML and 'mac'. The latter is only available
-// when using the native TTS synthesizer on Mac OS.
-// Use SSML in the production rules below. The markup will either be striped
-// off or replaced with the 'mac' markup as necessary.
-//
-// SSML                                             Mac
-// ----                                             ----
-// <emphasis>WORD</emphasis>                        [[emph +]]WORD
-// <break time="150ms"/>                            [[slc 150]]
-// <say-as interpret-as="character">A</say-as>      [[char LTRL] A [[char NORM]]
-// https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/SpeechSynthesisProgrammingGuide/FineTuning/FineTuning.html#//apple_ref/doc/uid/TP40004365-CH5-SW3
-// https://pdfs.semanticscholar.org/8887/25b82b8dbb45dd4dd69b36a65f092864adb0.pdf
-// "<audio src='non_existing_file.au'>File could not be played.</audio>"
-// "I am now <prosody rate='+0.06'>speaking 6% faster.</prosody>"
-var PRONUNCIATION = {
-  '\\alpha': 'alpha ',
-  '\\mu': 'mew ',
-  '\\sigma': 'sigma ',
-  '\\pi': 'pie ',
-  '\\imaginaryI': 'eye ',
-  '\\sum': 'Summation ',
-  '\\prod': 'Product ',
-  '+': 'plus ',
-  '-': 'minus ',
-  ';': '<break time="150ms"/> semi-colon <break time="150ms"/>',
-  ',': '<break time="150ms"/> comma  <break time="150ms"/>',
-  '|': '<break time="150ms"/>Vertical bar<break time="150ms"/>',
-  '(': '<break time="150ms"/>Open paren. <break time="150ms"/>',
-  ')': '<break time="150ms"/> Close paren. <break time="150ms"/>',
-  '=': 'equals ',
-  '<': 'is less than ',
-  '\\lt': 'is less than ',
-  '<=': 'is less than or equal to ',
-  '\\le': 'is less than or equal to ',
-  '\\gt': 'is greater than ',
-  '>': 'is greater than ',
-  '\\ge': 'is greater than or equal to ',
-  '\\geq': 'is greater than or equal to ',
-  '\\leq': 'is less than or equal to ',
-  '!': 'factorial ',
-  '\\sin': 'sine ',
-  '\\cos': 'cosine ',
-  "\u200B": '',
-  "\u2212": 'minus ',
-  ':': '<break time="150ms"/> such that <break time="200ms"/> ',
-  '\\colon': '<break time="150ms"/> such that <break time="200ms"/> ',
-  '\\hbar': 'etch bar ',
-  '\\iff': '<break time="200ms"/>if, and only if, <break time="200ms"/>',
-  '\\Longleftrightarrow': '<break time="200ms"/>if, and only if, <break time="200ms"/>',
-  '\\land': 'and ',
-  '\\lor': 'or ',
-  '\\neg': 'not ',
-  '\\div': 'divided by ',
-  '\\forall': 'for all ',
-  '\\exists': 'there exists ',
-  '\\nexists': 'there does not exists ',
-  '\\in': 'element of ',
-  '\\N': 'the set <break time="150ms"/><say-as interpret-as="character">n</say-as>',
-  '\\C': 'the set <break time="150ms"/><say-as interpret-as="character">c</say-as>',
-  '\\Z': 'the set <break time="150ms"/><say-as interpret-as="character">z</say-as>',
-  '\\Q': 'the set <break time="150ms"/><say-as interpret-as="character">q</say-as>',
-  '\\infty': 'infinity ',
-  '\\nabla': 'nabla ',
-  '\\partial': 'partial derivative of ',
-  '\\cdots': 'dot dot dot ',
-  '\\Rightarrow': 'implies ',
-  '\\lbrace': '<break time="150ms"/>open brace<break time="150ms"/>',
-  '\\{': '<break time="150ms"/>open brace<break time="150ms"/>',
-  '\\rbrace': '<break time="150ms"/>close brace<break time="150ms"/>',
-  '\\}': '<break time="150ms"/>close brace<break time="150ms"/>',
-  '\\langle': '<break time="150ms"/>left angle bracket<break time="150ms"/>',
-  '\\rangle': '<break time="150ms"/>right angle bracket<break time="150ms"/>',
-  '\\lfloor': '<break time="150ms"/>open floor<break time="150ms"/>',
-  '\\rfloor': '<break time="150ms"/>close floor<break time="150ms"/>',
-  '\\lceil': '<break time="150ms"/>open ceiling<break time="150ms"/>',
-  '\\rceil': '<break time="150ms"/>close ceiling<break time="150ms"/>',
-  '\\vert': '<break time="150ms"/>vertical bar<break time="150ms"/>',
-  '\\mvert': '<break time="150ms"/>divides<break time="150ms"/>',
-  '\\lvert': '<break time="150ms"/>left vertical bar<break time="150ms"/>',
-  '\\rvert': '<break time="150ms"/>right vertical bar<break time="150ms"/>',
-  // '\\lbrack':		'left bracket',
-  // '\\rbrack':		'right bracket',
-  '\\lbrack': '<break time="150ms"/> open square bracket <break time="150ms"/>',
-  '\\rbrack': '<break time="150ms"/> close square bracket <break time="150ms"/>',
-  // need to add code to detect singluar/plural. Until then spoken as plural since that is vastly more common
-  // note: need to worry about intervening &InvisibleTimes;.
-  // note: need to also do this when in numerator of fraction and number preceeds fraction
-  // note: need to do this for <msup>
-  'mm': 'millimeters',
-  'cm': 'centimeters',
-  'km': 'kilometers',
-  'kg': 'kilograms'
-};
-
-function getSpokenName(latex) {
-  var result = _editorPopover.default.NOTES[latex];
-
-  if (!result && latex.charAt(0) === '\\') {
-    result = ' ' + latex.replace('\\', '') + ' ';
-  } // If we got more than one result (from NOTES),
-  // pick the first one.
-
-
-  if (Array.isArray(result)) {
-    result = result[0];
-  }
-
-  return result;
-}
-
-function platform(p) {
-  var result = 'other';
-
-  if (navigator && navigator.platform && navigator.userAgent) {
-    if (/^(mac)/i.test(navigator.platform)) {
-      result = 'mac';
-    } else if (/^(win)/i.test(navigator.platform)) {
-      result = 'win';
-    } else if (/(android)/i.test(navigator.userAgent)) {
-      result = 'android';
-    } else if (/(iphone)/i.test(navigator.userAgent) || /(ipod)/i.test(navigator.userAgent) || /(ipad)/i.test(navigator.userAgent)) {
-      result = 'ios';
-    } else if (/\bCrOS\b/i.test(navigator.userAgent)) {
-      result = 'chromeos';
-    }
-  }
-
-  return result === p ? p : '!' + p;
-}
-
-function isAtomic(mathlist) {
-  var count = 0;
-
-  if (mathlist && Array.isArray(mathlist)) {
-    var _iteratorNormalCompletion = true;
-    var _didIteratorError = false;
-    var _iteratorError = undefined;
-
-    try {
-      for (var _iterator = mathlist[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-        var atom = _step.value;
-
-        if (atom.type !== 'first') {
-          count += 1;
-        }
-      }
-    } catch (err) {
-      _didIteratorError = true;
-      _iteratorError = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion && _iterator.return != null) {
-          _iterator.return();
-        }
-      } finally {
-        if (_didIteratorError) {
-          throw _iteratorError;
-        }
-      }
-    }
-  }
-
-  return count === 1;
-}
-
-function atomicID(mathlist) {
-  if (mathlist && Array.isArray(mathlist)) {
-    var _iteratorNormalCompletion2 = true;
-    var _didIteratorError2 = false;
-    var _iteratorError2 = undefined;
-
-    try {
-      for (var _iterator2 = mathlist[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-        var atom = _step2.value;
-
-        if (atom.type !== 'first' && atom.id) {
-          return atom.id.toString();
-        }
-      }
-    } catch (err) {
-      _didIteratorError2 = true;
-      _iteratorError2 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-          _iterator2.return();
-        }
-      } finally {
-        if (_didIteratorError2) {
-          throw _iteratorError2;
-        }
-      }
-    }
-  }
-
-  return '';
-}
-
-function atomicValue(mathlist) {
-  var result = '';
-
-  if (mathlist && Array.isArray(mathlist)) {
-    var _iteratorNormalCompletion3 = true;
-    var _didIteratorError3 = false;
-    var _iteratorError3 = undefined;
-
-    try {
-      for (var _iterator3 = mathlist[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-        var atom = _step3.value;
-
-        if (atom.type !== 'first' && typeof atom.body === 'string') {
-          result += atom.body;
-        }
-      }
-    } catch (err) {
-      _didIteratorError3 = true;
-      _iteratorError3 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
-          _iterator3.return();
-        }
-      } finally {
-        if (_didIteratorError3) {
-          throw _iteratorError3;
-        }
-      }
-    }
-  }
-
-  return result;
-}
-
-_mathAtom.default.toSpeakableFragment = function (atom, options) {
-  function letter(c) {
-    var result = '';
-
-    if (!options.textToSpeechMarkup) {
-      if (/[a-z]/.test(c)) {
-        result += " '" + c.toUpperCase() + "'";
-      } else if (/[A-Z]/.test(c)) {
-        result += " 'capital " + c.toUpperCase() + "'";
-      } else {
-        result += c;
-      }
-    } else {
-      if (/[a-z]/.test(c)) {
-        result += ' <say-as interpret-as="character">' + c + '</say-as>';
-      } else if (/[A-Z]/.test(c)) {
-        result += 'capital ' + c.toLowerCase() + '';
-      } else {
-        result += c;
-      }
-    }
-
-    return result;
-  }
-
-  function emph(s) {
-    return '<emphasis>' + s + '</emphasis>';
-  }
-
-  if (!atom) return '';
-  var result = '';
-
-  if (atom.id && options.speechMode === 'math') {
-    result += '<mark name="' + atom.id.toString() + '"/>';
-  }
-
-  if (Array.isArray(atom)) {
-    var isInDigitRun = false; // need to group sequence of digits
-
-    for (var i = 0; i < atom.length; i++) {
-      if (i < atom.length - 2 && atom[i].type === 'mopen' && atom[i + 2].type === 'mclose' && atom[i + 1].type === 'mord') {
-        result += ' of ';
-        result += emph(_mathAtom.default.toSpeakableFragment(atom[i + 1], options));
-        i += 2; // '.' and ',' should only be allowed if prev/next entry is a digit
-        // However, if that isn't the case, this still works because 'toSpeakableFragment' is called in either case.
-      } else if (atom[i].mode === 'text') {
-        result += atom[i].body ? atom[i].body : ' ';
-      } else if (atom[i].type === 'mord' && /[0123456789,.]/.test(atom[i].body)) {
-        if (isInDigitRun) {
-          result += atom[i].body;
-        } else {
-          isInDigitRun = true;
-          result += _mathAtom.default.toSpeakableFragment(atom[i], options);
-        }
-      } else {
-        isInDigitRun = false;
-        result += _mathAtom.default.toSpeakableFragment(atom[i], options);
-      }
-    }
-  } else {
-    var numer = '';
-    var denom = '';
-    var body = '';
-    var supsubHandled = false;
-
-    switch (atom.type) {
-      case 'group':
-      case 'root':
-        result += _mathAtom.default.toSpeakableFragment(atom.body, options);
-        break;
-
-      case 'genfrac':
-        numer = _mathAtom.default.toSpeakableFragment(atom.numer, options);
-        denom = _mathAtom.default.toSpeakableFragment(atom.denom, options);
-
-        if (isAtomic(atom.numer) && isAtomic(atom.denom)) {
-          var COMMON_FRACTIONS = {
-            '1/2': ' half ',
-            '1/3': ' one third ',
-            '2/3': ' two third',
-            '1/4': ' one quarter ',
-            '3/4': ' three quarter ',
-            '1/5': ' one fifth ',
-            '2/5': ' two fifths ',
-            '3/5': ' three fifths ',
-            '4/5': ' four fifths ',
-            '1/6': ' one sixth ',
-            '5/6': ' five sixths ',
-            '1/8': ' one eight ',
-            '3/8': ' three eights ',
-            '5/8': ' five eights ',
-            '7/8': ' seven eights ',
-            '1/9': ' one ninth ',
-            '2/9': ' two ninths ',
-            '4/9': ' four ninths ',
-            '5/9': ' five ninths ',
-            '7/9': ' seven ninths ',
-            '8/9': ' eight ninths ' // '1/10':     ' one tenth ',
-            // '1/12':     ' one twelfth ',
-            // 'x/2':     ' <say-as interpret-as="character">X</say-as> over 2',
-
-          };
-          var commonFraction = COMMON_FRACTIONS[atomicValue(atom.numer) + '/' + atomicValue(atom.denom)];
-
-          if (commonFraction) {
-            result = commonFraction;
-          } else {
-            result += numer + ' over ' + denom;
-          }
-        } else {
-          result += ' the fraction <break time="150ms"/>' + numer + ', over <break time="150ms"/>' + denom + '.<break time="150ms"/> End fraction.<break time="150ms"/>';
-        }
-
-        break;
-
-      case 'surd':
-        body = _mathAtom.default.toSpeakableFragment(atom.body, options);
-
-        if (!atom.index) {
-          if (isAtomic(atom.body)) {
-            result += ' the square root of ' + body + ' , ';
-          } else {
-            result += ' the square root of <break time="200ms"/>' + body + '. <break time="200ms"/> End square root';
-          }
-        } else {
-          var index = _mathAtom.default.toSpeakableFragment(atom.index, options);
-
-          index = index.trim();
-          var index2 = index.replace(/<mark([^/]*)\/>/g, '');
-
-          if (index2 === '3') {
-            result += ' the cube root of <break time="200ms"/>' + body + '. <break time="200ms"/> End cube root';
-          } else if (index2 === 'n') {
-            result += ' the nth root of <break time="200ms"/>' + body + '. <break time="200ms"/> End root';
-          } else {
-            result += ' the root with index: <break time="200ms"/>' + index + ', of <break time="200ms"/>' + body + '. <break time="200ms"/> End root';
-          }
-        }
-
-        break;
-
-      case 'accent':
-        break;
-
-      case 'leftright':
-        result += PRONUNCIATION[atom.leftDelim] || atom.leftDelim;
-        result += _mathAtom.default.toSpeakableFragment(atom.body, options);
-        result += PRONUNCIATION[atom.rightDelim] || atom.rightDelim;
-        break;
-
-      case 'line':
-        // @todo
-        break;
-
-      case 'rule':
-        // @todo
-        break;
-
-      case 'overunder':
-        // @todo
-        break;
-
-      case 'overlap':
-        // @todo
-        break;
-
-      case 'placeholder':
-        result += 'placeholder ' + atom.body;
-        break;
-
-      case 'delim':
-      case 'sizeddelim':
-      case 'mord':
-      case 'minner':
-      case 'mbin':
-      case 'mrel':
-      case 'mpunct':
-      case 'mopen':
-      case 'mclose':
-      case 'textord':
-        {
-          var command = atom.latex ? atom.latex.trim() : '';
-
-          if (command === '\\mathbin' || command === '\\mathrel' || command === '\\mathopen' || command === '\\mathclose' || command === '\\mathpunct' || command === '\\mathord' || command === '\\mathinner') {
-            result = _mathAtom.default.toSpeakableFragment(atom.body, options);
-            break;
-          }
-
-          var atomValue = atom.body;
-          var latexValue = atom.latex;
-
-          if (atom.type === 'delim' || atom.type === 'sizeddelim') {
-            atomValue = latexValue = atom.delim;
-          }
-
-          if (options.speechMode === 'text') {
-            result += atomValue;
-          } else {
-            if (atom.type === 'mbin') {
-              result += '<break time="150ms"/>';
-            }
-
-            if (atomValue) {
-              var value = PRONUNCIATION[atomValue] || (latexValue ? PRONUNCIATION[latexValue.trim()] : '');
-
-              if (value) {
-                result += ' ' + value;
-              } else {
-                var spokenName = latexValue ? getSpokenName(latexValue.trim()) : '';
-                result += spokenName ? spokenName : letter(atomValue);
-              }
-            } else {
-              result += _mathAtom.default.toSpeakableFragment(atom.body, options);
-            }
-
-            if (atom.type === 'mbin') {
-              result += '<break time="150ms"/>';
-            }
-          }
-
-          break;
-        }
-
-      case 'mop':
-        // @todo
-        if (atom.body !== "\u200B") {
-          // Not ZERO-WIDTH
-          var trimLatex = atom.latex ? atom.latex.trim() : '';
-
-          if (trimLatex === '\\sum') {
-            if (atom.superscript && atom.subscript) {
-              var sup = _mathAtom.default.toSpeakableFragment(atom.superscript, options);
-
-              sup = sup.trim();
-
-              var sub = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
-
-              sub = sub.trim();
-              result += ' the summation from <break time="200ms"/>' + sub + '<break time="200ms"/> to  <break time="200ms"/>' + sup + '<break time="200ms"/> of <break time="150ms"/>';
-              supsubHandled = true;
-            } else if (atom.subscript) {
-              var _sub = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
-
-              _sub = _sub.trim();
-              result += ' the summation from <break time="200ms"/>' + _sub + '<break time="200ms"/> of <break time="150ms"/>';
-              supsubHandled = true;
-            } else {
-              result += ' the summation of';
-            }
-          } else if (trimLatex === '\\prod') {
-            if (atom.superscript && atom.subscript) {
-              var _sup = _mathAtom.default.toSpeakableFragment(atom.superscript, options);
-
-              _sup = _sup.trim();
-
-              var _sub2 = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
-
-              _sub2 = _sub2.trim();
-              result += ' the product from <break time="200ms"/>' + _sub2 + '<break time="200ms"/> to <break time="200ms"/>' + _sup + '<break time="200ms"/> of <break time="150ms"/>';
-              supsubHandled = true;
-            } else if (atom.subscript) {
-              var _sub3 = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
-
-              _sub3 = _sub3.trim();
-              result += ' the product from <break time="200ms"/>' + _sub3 + '<break time="200ms"/> of <break time="150ms"/>';
-              supsubHandled = true;
-            } else {
-              result += ' the product  of ';
-            }
-          } else if (trimLatex === '\\int') {
-            if (atom.superscript && atom.subscript) {
-              var _sup2 = _mathAtom.default.toSpeakableFragment(atom.superscript, options);
-
-              _sup2 = _sup2.trim();
-
-              var _sub4 = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
-
-              _sub4 = _sub4.trim();
-              result += ' the integral from <break time="200ms"/>' + emph(_sub4) + '<break time="200ms"/> to <break time="200ms"/>' + emph(_sup2) + ' <break time="200ms"/> of ';
-              supsubHandled = true;
-            } else {
-              result += ' the integral of <break time="200ms"/> ';
-            }
-          } else if (typeof atom.body === 'string') {
-            var _value = PRONUNCIATION[atom.body] || PRONUNCIATION[atom.latex.trim()];
-
-            if (_value) {
-              result += _value;
-            } else {
-              result += ' ' + atom.body;
-            }
-          } else if (atom.latex && atom.latex.length > 0) {
-            if (atom.latex[0] === '\\') {
-              result += ' ' + atom.latex.substr(1);
-            } else {
-              result += ' ' + atom.latex;
-            }
-          }
-        }
-
-        break;
-
-      case 'enclose':
-        body = _mathAtom.default.toSpeakableFragment(atom.body, options);
-
-        if (isAtomic(atom.body)) {
-          result += ' crossed out ' + body + ' , ';
-        } else {
-          result += ' crossed out ' + body + '. End cross out';
-        }
-
-        break;
-
-      case 'space':
-      case 'spacing':
-      case 'mathstyle':
-      case 'box':
-        // @todo
-        break;
-    }
-
-    if (!supsubHandled && atom.superscript) {
-      var _sup3 = _mathAtom.default.toSpeakableFragment(atom.superscript, options);
-
-      _sup3 = _sup3.trim();
-
-      var sup2 = _sup3.replace(/<[^>]*>/g, '');
-
-      if (isAtomic(atom.superscript)) {
-        if (options.speechMode === 'math') {
-          var id = atomicID(atom.superscript);
-
-          if (id) {
-            result += '<mark name="' + id + '"/>';
-          }
-        }
-
-        if (sup2 === "\u2032") {
-          result += ' prime ';
-        } else if (sup2 === '2') {
-          result += ' squared ';
-        } else if (sup2 === '3') {
-          result += ' cubed ';
-        } else if (isNaN(parseInt(sup2))) {
-          result += ' to the ' + _sup3 + '; ';
-        } else {
-          result += ' to the <say-as interpret-as="ordinal">' + sup2 + '</say-as> power; ';
-        }
-      } else {
-        if (isNaN(parseInt(sup2))) {
-          result += ' raised to the ' + _sup3 + '; ';
-        } else {
-          result += ' raised to the <say-as interpret-as="ordinal">' + sup2 + '</say-as> power; ';
-        }
-      }
-    }
-
-    if (!supsubHandled && atom.subscript) {
-      var _sub5 = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
-
-      _sub5 = _sub5.trim();
-
-      if (isAtomic(atom.subscript)) {
-        result += ' sub ' + _sub5;
-      } else {
-        result += ' subscript ' + _sub5 + '. End subscript. ';
-      }
-    }
-  }
-
-  return result;
-};
-/**
- * @param {MathAtom[]}  [atoms] The atoms to represent as speakable text.
- * If omitted, `this` is used.
- * @param {Object.<string, any>} [options]
-*/
-
-
-_mathAtom.default.toSpeakableText = function (atoms, options) {
-  if (!options) {
-    options = {
-      textToSpeechMarkup: '',
-      // no markup
-      textToSpeechRules: 'mathlive'
-    };
-  }
-
-  options.speechMode = 'math';
-
-  if (window.sre && options.textToSpeechRules === 'sre') {
-    options.generateID = true;
-
-    var mathML = _mathAtom.default.toMathML(atoms, options);
-
-    if (mathML) {
-      if (options.textToSpeechMarkup) {
-        options.textToSpeechRulesOptions = options.textToSpeechRulesOptions || {};
-        options.textToSpeechRulesOptions.markup = options.textToSpeechMarkup;
-
-        if (options.textToSpeechRulesOptions.markup === 'ssml') {
-          options.textToSpeechRulesOptions.markup = 'ssml_step';
-        }
-
-        options.textToSpeechRulesOptions.rate = options.speechEngineRate;
-      }
-
-      if (options.textToSpeechRulesOptions) {
-        window.sre.System.getInstance().setupEngine(options.textToSpeechRulesOptions);
-      }
-
-      return window.sre.System.getInstance().toSpeech(mathML);
-    }
-
-    return ''; // return window.sre.toSpeech(MathAtom.toMathML(atoms));
-  }
-
-  var result = _mathAtom.default.toSpeakableFragment(atoms, options);
-
-  if (options.textToSpeechMarkup === 'ssml') {
-    var prosody = '';
-
-    if (options.speechEngineRate) {
-      prosody = '<prosody rate="' + options.speechEngineRate + '">';
-    }
-
-    result = "<?xml version=\"1.0\"?><speak version=\"1.1\" xmlns=\"http://www.w3.org/2001/10/synthesis\" xml:lang=\"en-US\">" + '<amazon:auto-breaths>' + prosody + '<p><s>' + result + '</s></p>' + (prosody ? '</prosody>' : '') + '</amazon:auto-breaths>' + '</speak>';
-  } else if (options.textToSpeechMarkup === 'mac' && platform('mac') === 'mac') {
-    // Convert SSML to Mac markup
-    result = result.replace(/<mark([^/]*)\/>/g, '').replace(/<emphasis>/g, '[[emph+]]').replace(/<\/emphasis>/g, '').replace(/<break time="([0-9]*)ms"\/>/g, '[[slc $1]]').replace(/<say-as[^>]*>/g, '').replace(/<\/say-as>/g, '');
-  } else {
-    // If no markup was requested, or 'mac' markup, but we're not on a mac,
-    // remove any that we may have
-    // Strip out the SSML markup
-    result = result.replace(/<[^>]*>/g, '').replace(/\s{2,}/g, ' ');
-  }
-
-  return result;
-}; // Export the public interface for this module
-
-
-var _default = {};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/color.js b/dist/core/color.js
deleted file mode 100644
index 5662be60d..000000000
--- a/dist/core/color.js
+++ /dev/null
@@ -1,472 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-/**
- * This module contains some color dictionaries and algorithms to 
- * parse a string into a hex RGB color value.s
- * @summary   Parsing of color strings.
- * @module core/color
- * @private
- */
-
-/*
-{\color{apricot}\blacksquare}{\color{aquamarine}\blacksquare}{\color{bittersweet}\blacksquare}{\color{black}\blacksquare}{\color{blue}\blacksquare}{\color{blueGreen}\blacksquare}{\color{blueviolet}\blacksquare}{\color{brickred}\blacksquare}{\color{brown}\blacksquare}{\color{burntorange}\blacksquare}{\color{cadetblue}\blacksquare}{\color{carnationpink}\blacksquare}{\color{cerulean}\blacksquare}{\color{cornflowerblue}\blacksquare}{\color{cyan}\blacksquare}{\color{dandelion}\blacksquare}{\color{darkorchid}\blacksquare}{\color{emerald}\blacksquare}{\color{forestgreen}\blacksquare}{\color{fuchsia}\blacksquare}{\color{goldenrod}\blacksquare}{\color{gray}\blacksquare}{\color{green}\blacksquare}{\color{greenyellow}\blacksquare}{\color{junglegreen}\blacksquare}{\color{lavender}\blacksquare}{\color{limegreen}\blacksquare}{\color{magenta}\blacksquare}{\color{mahogany}\blacksquare}{\color{maroon}\blacksquare}{\color{melon}\blacksquare}{\color{midnightblue}\blacksquare}{\color{mulberry}\blacksquare}{\color{navyblue}\blacksquare}{\color{olivegreen}\blacksquare}{\color{orange}\blacksquare}{\color{orangered}\blacksquare}{\color{orchid}\blacksquare}{\color{peach}\blacksquare}{\color{periwinkle}\blacksquare}{\color{pinegreen}\blacksquare}{\color{plum}\blacksquare}{\color{processblue}\blacksquare}{\color{purple}\blacksquare}{\color{rawsienna}\blacksquare}{\color{red}\blacksquare}{\color{redorange}\blacksquare}{\color{redviolet}\blacksquare}{\color{rhodamine}\blacksquare}{\color{royalblue}\blacksquare}{\color{royalpurple}\blacksquare}{\color{rubinered}\blacksquare}{\color{salmon}\blacksquare}{\color{seagreen}\blacksquare}{\color{sepia}\blacksquare}{\color{skyblue}\blacksquare}{\color{springgreen}\blacksquare}{\color{tan}\blacksquare}{\color{tealblue}\blacksquare}{\color{thistle}\blacksquare}{\color{turquoise}\blacksquare}{\color{violet}\blacksquare}{\color{violetred}\blacksquare}{\color{white}\blacksquare}{\color{wildstrawberry}\blacksquare}{\color{yellow}\blacksquare}{\color{yellowgreen}\blacksquare}{\color{yelloworange}\blacksquare}
-*/
-
-/**
- * First 10 predefined colors used for plotting by Mathematica.
- * 
- * Also known as _indexed color scheme #97_.
- * @constant
- * @type {Object.<string, string>}
- * @memberof module:color
- */
-var MATHEMATICA_COLORS = {
-  'm0': '#3f3d99',
-  // strong blue
-  'm1': '#993d71',
-  // strong cerise
-  'm2': '#998b3d',
-  // strong gold
-  'm3': '#3d9956',
-  // malachite green
-  'm4': '#3d5a99',
-  // strong cobalt blue
-  'm5': '#993d90',
-  // strong orchid
-  'm6': '#996d3d',
-  // strong orange
-  'm7': '#43993d',
-  // strong sap green
-  'm8': '#3d7999',
-  // cornflower blue
-  'm9': '#843d99' // mulberry
-  // ColorData97 (Mathematica standard lines)
-  // rgb(0.368417, 0.506779, 0.709798),       #5e81b5
-  // rgb(0.880722, 0.611041, 0.142051),
-  // rgb(0.560181, 0.691569, 0.194885),
-  // rgb(0.922526, 0.385626, 0.209179),
-  // rgb(0.528488, 0.470624, 0.701351),
-  // rgb(0.772079, 0.431554, 0.102387),
-  // rgb(0.363898, 0.618501, 0.782349),
-  // rgb(1, 0.75, 0),
-  // rgb(0.647624, 0.37816, 0.614037),
-  // rgb(0.571589, 0.586483, 0.),
-  // rgb(0.915, 0.3325, 0.2125),
-  // rgb(0.40082222609352647, 0.5220066643438841, 0.85),
-  // rgb(0.9728288904374106, 0.621644452187053, 0.07336199581899142),
-  // rgb(0.736782672705901, 0.358, 0.5030266573755369),
-  // rgb(0.28026441037696703, 0.715, 0.4292089322474965)
-  // MathLab colors
-  // '#0072bd' // [0, 0.4470, 0.7410]             blue
-  // '#d95319' // [0.8500, 0.3250, 0.0980]        orange
-  // '#edb120', // [0.9290, 0.6940, 0.1250]       yellow
-  // '#7e2f8e', // [0.4940, 0.1840, 0.5560]       purple
-  // '#77ac30', // [0.4660, 0.6740, 0.1880]       green
-  // '#4dbeee', // [0.3010, 0.7450, 0.9330]       cyan
-  // '#a2142f' // [0.6350, 0.0780, 0.1840]	    dark red
-
-  /* Area colors are most appropriate to color a large area */
-
-};
-var AREA_COLORS = ['#d35d60', // red
-'#7293cb', // cobalt blue
-'#e1974d', // orange
-'#84bb5d', // pistachio
-'#9066a7', // purple
-'#aD6a58', // vermilion
-'#f5a4ce', // pale rose
-'#fff590', // pale gold
-'#212121', // Black
-'#818787', // dark grey
-'#d4d5d2', // light grey
-'#ffffff' // white
-];
-/* Line colors are most appropriate to color as a stroke color */
-
-var LINE_COLORS = ['#cc2428', // red
-'#3769b1', // cobalt blue
-'#da7e30', // orange
-'#409852', // malachite green
-'#6b4c9a', // blue violet
-'#922426', // red
-'#e7298a', // brilliant rose
-'#ffe907', // vivid gold
-'#000000', '#525055', '#adafaa', '#ffffff'];
-/** 
- * 68 colors (+ white) known to dvips used in LaTeX.
- * 
- * The color names are based on the names of the _Crayola Crayon_ box of 
- * 64 crayons.
- * 
- * See:
- * - {@link http://mirror.jmu.edu/pub/CTAN/systems/knuth/local/lib/colordvi.tex|ColorDVI.tex}
- * - {@link https://en.wikibooks.org/w/index.php?title=LaTeX/Colors|Wikibooks:LaTeX/Colors}
- * @constant NAMED_COLORS
- * @memberof module:color
- * @type {Object.<string, string>}
- */
-
-var NAMED_COLORS = {
-  'apricot': '#FBB982',
-  'aquamarine': '#00B5BE',
-  'bittersweet': '#C04F17',
-  'black': '#221E1F',
-  // Indeed.
-  'blue': '#2D2F92',
-  'bluegreen': '#00B3B8',
-  'blueviolet': '#473992',
-  'brickred': '#B6321C',
-  'brown': '#792500',
-  'burntorange': '#F7921D',
-  'cadetblue': '#74729A',
-  'carnationpink': '#F282B4',
-  'cerulean': '#00A2E3',
-  'cornflowerblue': '#41B0E4',
-  'cyan': '#00AEEF',
-  'dandelion': '#FDBC42',
-  'darkorchid': '#A4538A',
-  'emerald': '#00A99D',
-  'forestgreen': '#009B55',
-  'fuchsia': '#8C368C',
-  'goldenrod': '#FFDF42',
-  'gray': '#949698',
-  'green': '#00A64F',
-  'greenyellow': '#DFE674',
-  'junglegreen': '#00A99A',
-  'lavender': '#F49EC4',
-  'limegreen': '#8DC73E',
-  'magenta': '#EC008C',
-  'mahogany': '#A9341F',
-  'maroon': '#AF3235',
-  'melon': '#F89E7B',
-  'midnightblue': '#006795',
-  'mulberry': '#A93C93',
-  'navyblue': '#006EB8',
-  'olivegreen': '#3C8031',
-  'orange': '#F58137',
-  'orangered': '#ED135A',
-  'orchid': '#AF72B0',
-  'peach': '#F7965A',
-  'periwinkle': '#7977B8',
-  'pinegreen': '#008B72',
-  'plum': '#92268F',
-  'processblue': '#00B0F0',
-  'purple': '#99479B',
-  'rawsienna': '#974006',
-  'red': '#ED1B23',
-  'redorange': '#F26035',
-  'redviolet': '#A1246B',
-  'rhodamine': '#EF559F',
-  'royalblue': '#0071BC',
-  'royalpurple': '#613F99',
-  'rubinered': '#ED017D',
-  'salmon': '#F69289',
-  'seagreen': '#3FBC9D',
-  'sepia': '#671800',
-  'skyblue': '#46C5DD',
-  'springgreen': '#C6DC67',
-  'tan': '#DA9D76',
-  'tealblue': '#00AEB3',
-  'thistle': '#D883B7',
-  'turquoise': '#00B4CE',
-  'violet': '#58429B',
-  'violetred': '#EF58A0',
-  'white': '#FFFFFF',
-  'wildstrawberry': '#EE2967',
-  'yellow': '#FFF200',
-  'yellowgreen': '#98CC70',
-  'yelloworange': '#FAA21A'
-}; // Other color lists: SVG colors, x11 colors
-
-/*
-aliceblue	rgb(240, 248, 255)
-antiquewhite	rgb(250, 235, 215)
-aqua	rgb( 0, 255, 255)
-aquamarine	rgb(127, 255, 212)
-azure	rgb(240, 255, 255)
-beige	rgb(245, 245, 220)
-bisque	rgb(255, 228, 196)
-black	rgb( 0, 0, 0)
-blanchedalmond	rgb(255, 235, 205)
-blue	rgb( 0, 0, 255)
-blueviolet	rgb(138, 43, 226)
-brown	rgb(165, 42, 42)
-burlywood	rgb(222, 184, 135)
-cadetblue	rgb( 95, 158, 160)
-chartreuse	rgb(127, 255, 0)
-chocolate	rgb(210, 105, 30)
-coral	rgb(255, 127, 80)
-cornflowerblue	rgb(100, 149, 237)
-cornsilk	rgb(255, 248, 220)
-crimson	rgb(220, 20, 60)
-cyan	rgb( 0, 255, 255)
-darkblue	rgb( 0, 0, 139)
-darkcyan	rgb( 0, 139, 139)
-darkgoldenrod	rgb(184, 134, 11)
-darkgray	rgb(169, 169, 169)
-darkgreen	rgb( 0, 100, 0)
-darkgrey	rgb(169, 169, 169)
-darkkhaki	rgb(189, 183, 107)
-darkmagenta	rgb(139, 0, 139)
-darkolivegreen	rgb( 85, 107, 47)
-darkorange	rgb(255, 140, 0)
-darkorchid	rgb(153, 50, 204)
-darkred	rgb(139, 0, 0)
-darksalmon	rgb(233, 150, 122)
-darkseagreen	rgb(143, 188, 143)
-darkslateblue	rgb( 72, 61, 139)
-darkslategray	rgb( 47, 79, 79)
-darkslategrey	rgb( 47, 79, 79)
-darkturquoise	rgb( 0, 206, 209)
-darkviolet	rgb(148, 0, 211)
-deeppink	rgb(255, 20, 147)
-deepskyblue	rgb( 0, 191, 255)
-dimgray	rgb(105, 105, 105)
-dimgrey	rgb(105, 105, 105)
-dodgerblue	rgb( 30, 144, 255)
-firebrick	rgb(178, 34, 34)
-floralwhite	rgb(255, 250, 240)
-forestgreen	rgb( 34, 139, 34)
-fuchsia	rgb(255, 0, 255)
-gainsboro	rgb(220, 220, 220)
-ghostwhite	rgb(248, 248, 255)
-gold	rgb(255, 215, 0)
-goldenrod	rgb(218, 165, 32)
-gray	rgb(128, 128, 128)
-grey	rgb(128, 128, 128)
-green	rgb( 0, 128, 0)
-greenyellow	rgb(173, 255, 47)
-honeydew	rgb(240, 255, 240)
-hotpink	rgb(255, 105, 180)
-indianred	rgb(205, 92, 92)
-indigo	rgb( 75, 0, 130)
-ivory	rgb(255, 255, 240)
-khaki	rgb(240, 230, 140)
-lavender	rgb(230, 230, 250)
-lavenderblush	rgb(255, 240, 245)
-lawngreen	rgb(124, 252, 0)
-lemonchiffon	rgb(255, 250, 205)
-lightblue	rgb(173, 216, 230)
-lightcoral	rgb(240, 128, 128)
-lightcyan	rgb(224, 255, 255)
-lightgoldenrodyellow	rgb(250, 250, 210)
-lightgray	rgb(211, 211, 211)
-lightgreen	rgb(144, 238, 144)
-lightgrey	rgb(211, 211, 211)
-lightpink	rgb(255, 182, 193)
-lightsalmon	rgb(255, 160, 122)
-lightseagreen	rgb( 32, 178, 170)
-lightskyblue	rgb(135, 206, 250)
-lightslategray	rgb(119, 136, 153)
-lightslategrey	rgb(119, 136, 153)
-lightsteelblue	rgb(176, 196, 222)
-lightyellow	rgb(255, 255, 224)
-lime	rgb( 0, 255, 0)
-limegreen	rgb( 50, 205, 50)
-linen	rgb(250, 240, 230)
-magenta	rgb(255, 0, 255)
-maroon	rgb(128, 0, 0)
-mediumaquamarine	rgb(102, 205, 170)
-mediumblue	rgb( 0, 0, 205)
-mediumorchid	rgb(186, 85, 211)
-mediumpurple	rgb(147, 112, 219)
-mediumseagreen	rgb( 60, 179, 113)
-mediumslateblue	rgb(123, 104, 238)
-mediumspringgreen	rgb( 0, 250, 154)
-mediumturquoise	rgb( 72, 209, 204)
-mediumvioletred	rgb(199, 21, 133)
-midnightblue	rgb( 25, 25, 112)
-mintcream	rgb(245, 255, 250)
-mistyrose	rgb(255, 228, 225)
-moccasin	rgb(255, 228, 181)
-navajowhite	rgb(255, 222, 173)
-navy	rgb( 0, 0, 128)
-oldlace	rgb(253, 245, 230)
-olive	rgb(128, 128, 0)
-olivedrab	rgb(107, 142, 35)
-orange	rgb(255, 165, 0)
-orangered	rgb(255, 69, 0)
-orchid	rgb(218, 112, 214)
-palegoldenrod	rgb(238, 232, 170)
-palegreen	rgb(152, 251, 152)
-paleturquoise	rgb(175, 238, 238)
-palevioletred	rgb(219, 112, 147)
-papayawhip	rgb(255, 239, 213)
-peachpuff	rgb(255, 218, 185)
-peru	rgb(205, 133, 63)
-pink	rgb(255, 192, 203)
-plum	rgb(221, 160, 221)
-powderblue	rgb(176, 224, 230)
-purple	rgb(128, 0, 128)
-red	rgb(255, 0, 0)
-rosybrown	rgb(188, 143, 143)
-royalblue	rgb( 65, 105, 225)
-saddlebrown	rgb(139, 69, 19)
-salmon	rgb(250, 128, 114)
-sandybrown	rgb(244, 164, 96)
-seagreen	rgb( 46, 139, 87)
-seashell	rgb(255, 245, 238)
-sienna	rgb(160, 82, 45)
-silver	rgb(192, 192, 192)
-skyblue	rgb(135, 206, 235)
-slateblue	rgb(106, 90, 205)
-slategray	rgb(112, 128, 144)
-slategrey	rgb(112, 128, 144)
-snow	rgb(255, 250, 250)
-springgreen	rgb( 0, 255, 127)
-steelblue	rgb( 70, 130, 180)
-tan	rgb(210, 180, 140)
-teal	rgb( 0, 128, 128)
-thistle	rgb(216, 191, 216)
-tomato	rgb(255, 99, 71)
-turquoise	rgb( 64, 224, 208)
-violet	rgb(238, 130, 238)
-wheat	rgb(245, 222, 179)
-white	rgb(255, 255, 255)
-whitesmoke	rgb(245, 245, 245)
-yellow	rgb(255, 255, 0)
-yellowgreen	rgb(154, 205, 50)
- 	 
-*/
-
-/**
- * Return a CSS color (#rrggbb) from a string.
- * 
- * Possible formats include:
- * - named colors from the DVI color set: 'Yellow', 'red'... Case insensitive.
- * - colors from the Mathematica set: 'm1'...'m9'
- * - 3-digit hex: `'#d50'`
- * - 6-digit hex: `'#dd5500'`
- * - RGB functional: `'rgb(240, 20, 10)'`
- * 
- * In addition, colors can be mixed using the following syntax:
- * `<mix> = <color>![<value>][!<mix>]`
- * For example: 
- * - `'blue!20'`  = 20% blue + 80% white
- * - `'blue!20!black'` = 20% + 80% black
- * - `'blue!20!black!30!green'` = (20% + 80% black) * 30 % + 70% green
- * 
- * If the input string is prefixed with a dash, the complementary color
- * of the expression is returned.
- * 
- * This creative syntax is defined by the {@link http://mirror.jmu.edu/pub/CTAN/macros/latex/contrib/xcolor/xcolor.pdf|`xcolor` LaTeX package}.
- * 
- * @param {string} s - An expression representing a color value
- * @return {string} An RGB color expressed as a hex-triplet preceded by `#`
- * @memberof module:color
- * @private
- */
-
-function stringToColor(s) {
-  var colorSpec = s.toLowerCase().split('!');
-  var baseRed;
-  var baseGreen;
-  var baseBlue;
-  var red = 255;
-  var green = 255;
-  var blue = 255;
-  var mix = -1; // If the string is prefixed with a '-', use the complementary color
-
-  var complementary = colorSpec.length > 0 && colorSpec[0].charAt(0) === '-';
-  if (complementary) colorSpec[0] = colorSpec[0].slice(1);
-
-  for (var i = 0; i < colorSpec.length; i++) {
-    baseRed = red;
-    baseGreen = green;
-    baseBlue = blue;
-    var colorName = colorSpec[i].match(/([a-z0-9]*)/);
-    if (colorName) colorName = colorName[1];
-    var color = NAMED_COLORS[colorName] || MATHEMATICA_COLORS[colorName];
-    if (!color) color = colorSpec[i];
-    var m = color.match(/^#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i);
-
-    if (m && m[1] && m[2] && m[3]) {
-      // It's a six-digit hex number
-      red = Math.max(0, Math.min(255, parseInt(m[1], 16)));
-      green = Math.max(0, Math.min(255, parseInt(m[2], 16)));
-      blue = Math.max(0, Math.min(255, parseInt(m[3], 16)));
-    } else {
-      m = color.match(/^#([0-9a-f]{3})$/i);
-
-      if (m && m[1]) {
-        // It's a three-digit hex number
-        var r1 = parseInt(m[1][0], 16);
-        var g1 = parseInt(m[1][1], 16);
-        var b1 = parseInt(m[1][2], 16);
-        red = Math.max(0, Math.min(255, r1 * 16 + r1));
-        green = Math.max(0, Math.min(255, g1 * 16 + g1));
-        blue = Math.max(0, Math.min(255, b1 * 16 + b1));
-      } else {
-        // It's a rgb functional
-        m = color.match(/^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i);
-
-        if (m && m[1] && m[2] && m[3]) {
-          red = Math.max(0, Math.min(255, parseInt(m[1])));
-          green = Math.max(0, Math.min(255, parseInt(m[2])));
-          blue = Math.max(0, Math.min(255, parseInt(m[3])));
-        } else {
-          return null;
-        }
-      }
-    }
-
-    if (mix >= 0) {
-      red = (1.0 - mix) * red + mix * baseRed;
-      green = (1.0 - mix) * green + mix * baseGreen;
-      blue = (1.0 - mix) * blue + mix * baseBlue;
-      mix = -1;
-    }
-
-    if (i + 1 < colorSpec.length) {
-      mix = Math.max(0, Math.min(100, parseInt(colorSpec[++i]))) / 100.0;
-    }
-  }
-
-  if (mix >= 0) {
-    red = mix * red + (1.0 - mix) * baseRed;
-    green = mix * green + (1.0 - mix) * baseGreen;
-    blue = mix * blue + (1.0 - mix) * baseBlue;
-  }
-
-  if (complementary) {
-    red = 255 - red;
-    green = 255 - green;
-    blue = 255 - blue;
-  }
-
-  return '#' + ('00' + Math.round(red).toString(16)).slice(-2) + ('00' + Math.round(green).toString(16)).slice(-2) + ('00' + Math.round(blue).toString(16)).slice(-2);
-}
-
-function colorToString(color) {
-  var result = color.toUpperCase();
-
-  for (var c in NAMED_COLORS) {
-    if (NAMED_COLORS[c] === result) {
-      result = c;
-      break;
-    }
-  }
-
-  for (var _c in MATHEMATICA_COLORS) {
-    if (MATHEMATICA_COLORS[_c] === result) {
-      result = _c;
-      break;
-    }
-  }
-
-  return result;
-} // Export the public interface for this module
-
-
-var _default = {
-  stringToColor: stringToColor,
-  colorToString: colorToString,
-  AREA_COLORS: AREA_COLORS,
-  LINE_COLORS: LINE_COLORS
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/context.js b/dist/core/context.js
deleted file mode 100755
index 0168ac653..000000000
--- a/dist/core/context.js
+++ /dev/null
@@ -1,145 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _mathstyle = _interopRequireDefault(require("./mathstyle.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-/**
- * This class contains the rendering context of the current parse level.
- *
- * It also holds information about the parent context to handle scaling
- * adjustments.
- *
- * When a new scope is entered, a clone of the context is created with `.clone()`
- * so that any further changes remain local to the scope.
- *
- * A scope is defined for example by:
- * - an explicit group enclosed in braces `{...}`
- * - a semi-simple group enclosed in `\bgroup...\endgroup`
- * - an environment delimited by `\begin{<envname>}...\end{<envname>}`
- *
- * @property {string} mathstyle `'text'` (aka 'inline'), `'display'`,
- * `'script'` or `'scriptscript'`
- * @property {number} opacity
- * @property {number} size
- * @property {boolean|object} generateID - If true, unique IDs should be 
- * generated for each span so they can be mapped back to an atom. 
- * Can also be an object with a `seed` field to generate a specific range of 
- * IDs. Optionally, if a `groupNumbers` property is set to true, an additional 
- * span will enclose strings of digits. This is used by read aloud to properly 
- * pronounce (and highlight) numbers in expressions.
- * @property {string} parentMathstyle
- * @property {number} parentSize
- * @property {object} macros A macros dictionary
- *
- * @class Context
- * @global
- * @private
- */
-var Context =
-/*#__PURE__*/
-function () {
-  function Context(from) {
-    _classCallCheck(this, Context);
-
-    this.macros = from.macros || {};
-    this.generateID = from.generateID ? from.generateID : false;
-    this.mathstyle = _mathstyle.default.toMathstyle(from.mathstyle || 'displaystyle');
-    this.size = from.size || 'size5'; // medium size
-
-    this.parentMathstyle = from.parentMathstyle || this.mathstyle;
-    this.parentSize = from.parentSize || this.size;
-    this.opacity = from.opacity;
-  }
-  /**
-   * Returns a new context with the same properties as 'this'.
-   * @return {Context}
-   * @memberof Context
-   * @instance
-   * @private
-   */
-
-
-  _createClass(Context, [{
-    key: "clone",
-    value: function clone(override) {
-      var result = new Context(this);
-      result.parentMathstyle = this.mathstyle;
-      result.parentSize = this.size;
-      result.macros = this.macros;
-
-      if (override) {
-        // `'auto'` (or undefined) to indicate that the mathstyle should in
-        // fact not be changed. This is used when specifying the mathstyle 
-        // for some environments.
-        if (override.mathstyle === 'auto' || !override.mathstyle) {
-          delete override.mathstyle;
-        }
-
-        Object.assign(result, override);
-
-        if (typeof override.mathstyle === 'string') {
-          result.mathstyle = _mathstyle.default.toMathstyle(override.mathstyle);
-        }
-      }
-
-      return result;
-    }
-    /**
-     * Change the mathstyle of this context
-     * @param {string} value - `'auto'` to indicate that the mathstyle should in
-     * fact not be changed. This is used when specifying the mathstyle for some
-     * environments.
-     * @memberof Context
-     * @instance
-     * @private
-     */
-
-  }, {
-    key: "setMathstyle",
-    value: function setMathstyle(value) {
-      if (value && value !== 'auto') {
-        this.mathstyle = _mathstyle.default.toMathstyle(value);
-      }
-    }
-  }, {
-    key: "cramp",
-    value: function cramp() {
-      return this.clone({
-        'mathstyle': this.mathstyle.cramp()
-      });
-    }
-  }, {
-    key: "sup",
-    value: function sup() {
-      return this.clone({
-        'mathstyle': this.mathstyle.sup()
-      });
-    }
-  }, {
-    key: "sub",
-    value: function sub() {
-      return this.clone({
-        'mathstyle': this.mathstyle.sup()
-      });
-    }
-  }]);
-
-  return Context;
-}();
-
-var _default = {
-  Context: Context
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/definitions.js b/dist/core/definitions.js
deleted file mode 100644
index faffb7712..000000000
--- a/dist/core/definitions.js
+++ /dev/null
@@ -1,3777 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _fontMetrics = _interopRequireDefault(require("./fontMetrics.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-/**
- * To organize the symbols when generating the documentation, we
- * keep track of a category that gets assigned to each symbol.
- * @private
- */
-var category = '';
-var MATH_SYMBOLS = {};
-var FUNCTIONS = {};
-var ENVIRONMENTS = {};
-var MACROS = {
-  'iff': "\\;\u27FA\\;",
-  //>2,000 Note: additional spaces around the arrows
-  'nicefrac': '^{#1}\\!\\!/\\!_{#2}',
-  // From bracket.sty, Diract notation
-  'bra': '\\mathinner{\\langle{#1}|}',
-  'ket': '\\mathinner{|{#1}\\rangle}',
-  'braket': '\\mathinner{\\langle{#1}\\rangle}',
-  'set': '\\mathinner{\\lbrace #1 \\rbrace}',
-  'Bra': '\\left\\langle #1\\right|',
-  'Ket': '\\left|#1\\right\\rangle',
-  'Braket': '\\left\\langle{#1}\\right\\rangle',
-  'Set': '\\left\\lbrace #1 \\right\\rbrace'
-};
-var RIGHT_DELIM = {
-  '(': ')',
-  '{': '}',
-  '[': ']',
-  '|': '|',
-  '\\lbrace': '\\rbrace',
-  '\\{': '\\}',
-  '\\langle': '\\rangle',
-  '\\lfloor': '\\rfloor',
-  '\\lceil': '\\rceil',
-  '\\vert': '\\vert',
-  '\\lvert': '\\rvert',
-  '\\Vert': '\\Vert',
-  '\\lVert': '\\rVert',
-  '\\lbrack': '\\rbrack',
-  "\\ulcorner": "\\urcorner",
-  '\\llcorner': '\\lrcorner',
-  '\\lgroup': '\\rgroup',
-  '\\lmoustache': '\\rmoustache' // Frequency of a symbol.
-  // String constants corresponding to frequency values,
-  // which are the number of results returned by latexsearch.com
-  // When the precise number is known, it is provided. Otherwise,
-  // the following constants are used to denote an estimate.
-
-};
-var CRYPTIC = 'CRYPTIC';
-var ARCANE = 'ARCANE'; // const VERY_RARE = 'VERY_RARE';
-
-var RARE = 'RARE';
-var UNCOMMON = 'UNCOMMON';
-var COMMON = 'COMMON';
-var SUPERCOMMON = 'SUPERCOMMON';
-/**
- * @type {Object.<string, number>}
- * @private
- */
-
-var FREQUENCY_VALUE = {
-  'CRYPTIC': 0,
-  'ARCANE': 200,
-  'VERY_RARE': 600,
-  'RARE': 1200,
-  'UNCOMMON': 2000,
-  'COMMON': 3000,
-  'SUPERCOMMON': 4000
-  /**
-   * Set the frequency of the specified symbol.
-   * Default frequency is UNCOMMON
-   * The argument list is a frequency value, followed by one or more symbol strings
-   * For example:
-   *  frequency(COMMON , '\\sin', '\\cos')
-   * @param {string|number} value The frequency as a string constant,
-   * or a numeric value [0...2000]
-   * @param {...string}
-   * @memberof module:definitions
-   * @private
-   */
-
-};
-
-function frequency(value) {
-  var v = typeof value === 'string' ? FREQUENCY_VALUE[value] : value;
-
-  for (var _len = arguments.length, symbols = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-    symbols[_key - 1] = arguments[_key];
-  }
-
-  for (var _i = 0, _symbols = symbols; _i < _symbols.length; _i++) {
-    var symbol = _symbols[_i];
-
-    if (MATH_SYMBOLS[symbol]) {
-      MATH_SYMBOLS[symbol].frequency = v;
-    }
-
-    if (FUNCTIONS[symbol]) {
-      // Make a copy of the entry, since it could be shared by multiple
-      // symbols
-      FUNCTIONS[symbol] = Object.assign({}, FUNCTIONS[symbol]);
-      FUNCTIONS[symbol].frequency = v;
-    }
-  }
-}
-/**
- *
- * @param {string} latexName    The common LaTeX command for this symbol
- * @param {(string|string[])} mode
- * @param {string} fontFamily
- * @param {string} type
- * @param {string} value
- * @param {(number|string)} [frequency]
- * @memberof module:definitions
- * @private
- */
-
-
-function defineSymbol(latexName, fontFamily, type, value, frequency) {
-  if (fontFamily && !/^(ams|cmr|bb|cal|frak|scr)$/.test(fontFamily)) {
-    console.log(fontFamily, latexName);
-  } // Convert a frequency constant to a numerical value
-
-
-  if (typeof frequency === 'string') frequency = FREQUENCY_VALUE[frequency];
-  MATH_SYMBOLS[latexName] = {
-    type: type === ORD ? MATHORD : type,
-    baseFontFamily: fontFamily,
-    value: value,
-    category: category,
-    // To group items when generating the documentation
-    frequency: frequency
-  };
-}
-/**
- * Define a set of single-character symbols and all their attributes.
- * The value associated with the symbol is the symbol itself.
- * @param {string} string a string of single character symbols
- * @param {string} mode
- * @param {string} fontFamily
- * @param {string} type
- * @param {(string|number)} [frequency]
- * @memberof module:definitions
- * @private
- */
-
-
-function defineSymbols(string) {
-  for (var i = 0; i < string.length; i++) {
-    var ch = string.charAt(i);
-    defineSymbol(ch, '', MATHORD, ch);
-  }
-}
-/**
- * Define a set of single-character symbols as a range of Unicode codepoints
- * @param {number} from First Unicode codepoint
- * @param {number} to Last Unicode codepoint
- * @memberof module:definitions
- * @private
- */
-
-
-function defineSymbolRange(from, to) {
-  for (var i = from; i <= to; i++) {
-    var ch = String.fromCodePoint(i);
-    defineSymbol(ch, '', 'mord', ch);
-  }
-}
-
-var CODEPOINT_SHORTCUTS = {
-  8739: '|',
-  0x00b7: '\\cdot',
-  0x00bc: '\\frac{1}{4}',
-  0x00bd: '\\frac{1}{2}',
-  0x00be: '\\frac{3}{4}',
-  0x2070: '^{0}',
-  0x2071: '^{i}',
-  0x00b9: '^{1}',
-  0x00b2: '^{2}',
-  0x00b3: '^{3}',
-  0x2074: '^{4}',
-  0x2075: '^{5}',
-  0x2076: '^{6}',
-  0x2077: '^{7}',
-  0x2078: '^{8}',
-  0x2079: '^{9}',
-  0x207a: '^{+}',
-  0x207b: '^{-}',
-  0x207c: '^{=}',
-  0x207f: '^{n}',
-  0x2080: '_{0}',
-  0x2081: '_{1}',
-  0x2082: '_{2}',
-  0x2083: '_{3}',
-  0x2084: '_{4}',
-  0x2085: '_{5}',
-  0x2086: '_{6}',
-  0x2087: '_{7}',
-  0x2088: '_{8}',
-  0x2089: '_{9}',
-  0x208A: '_{+}',
-  0x208B: '_{-}',
-  0x208C: '_{=}',
-  0x2090: '_{a}',
-  0x2091: '_{e}',
-  0x2092: '_{o}',
-  0x2093: '_{x}',
-  0x2032: '\\prime',
-  0x2033: '\\doubleprime',
-  0x2220: '\\angle',
-  0x2102: '\\C',
-  0x2115: '\\N',
-  0x2119: '\\P',
-  0x211A: '\\Q',
-  0x211D: '\\R',
-  0x2124: '\\Z'
-};
-/**
- * Given a character, return a LaTeX expression matching its Unicode codepoint.
- * If there is a matching symbol (e.g. \alpha) it is returned.
- * @param {string} parseMode
- * @param {number} cp
- * @return {string}
- * @memberof module:definitions
- * @private
- */
-
-function matchCodepoint(parseMode, cp) {
-  var s = String.fromCodePoint(cp); // Some symbols map to multiple codepoints.
-  // Some symbols are 'pseudosuperscript'. Convert them to a super(or sub)script.
-  // Map their alternative codepoints here.
-
-  if (parseMode === 'math' && CODEPOINT_SHORTCUTS[s]) return CODEPOINT_SHORTCUTS[s]; // Don't map 'simple' code point.
-  // For example "C" maps to \doubleStruckCapitalC, not the desired "C"
-
-  if (cp > 32 && cp < 127) return s;
-  var result = '';
-
-  if (parseMode === 'math') {
-    for (var p in MATH_SYMBOLS) {
-      if (MATH_SYMBOLS.hasOwnProperty(p)) {
-        if (MATH_SYMBOLS[p].value === s) {
-          result = p;
-          break;
-        }
-      }
-    }
-  } else {
-    for (var _p in TEXT_SYMBOLS) {
-      if (TEXT_SYMBOLS.hasOwnProperty(_p)) {
-        if (TEXT_SYMBOLS[_p] === s) {
-          result = _p;
-          break;
-        }
-      }
-    }
-  }
-
-  return result || s;
-}
-/**
- * Given a Unicode character returns {char:, variant:, style} corresponding
- * to this codepoint. `variant` is optional.
- * This maps characters such as "blackboard uppercase C" to
- * {char: 'C', variant: 'double-struck', style:''}
- * @param {string} char
- */
-
-/* Some symbols in the MATHEMATICAL ALPHANUMERICAL SYMBOLS block had
-   been previously defined in other blocks. Remap them */
-
-
-var MATH_LETTER_EXCEPTIONS = {
-  0x1d455: 0x0210e,
-  0x1D49D: 0x0212C,
-  0x1D4A0: 0x02130,
-  0x1D4A1: 0x02131,
-  0x1D4A3: 0x0210B,
-  0x1D4A4: 0x02110,
-  0x1D4A7: 0x02112,
-  0x1D4A8: 0x02133,
-  0x1D4AD: 0x0211B,
-  0x1D4BA: 0x0212F,
-  0x1D4BC: 0x0210A,
-  0x1D4C4: 0x02134,
-  0x1D506: 0x0212D,
-  0x1D50B: 0x0210C,
-  0x1D50C: 0x02111,
-  0x1D515: 0x0211C,
-  0x1D51D: 0x02128,
-  0x1D53A: 0x02102,
-  0x1D53F: 0x0210D,
-  0x1D545: 0x02115,
-  0x1D547: 0x02119,
-  0x1D548: 0x0211A,
-  0x1D549: 0x0211D,
-  0x1D551: 0x02124
-};
-var MATH_UNICODE_BLOCKS = [{
-  start: 0x1D400,
-  len: 26,
-  offset: 65,
-  style: 'bold'
-}, {
-  start: 0x1D41A,
-  len: 26,
-  offset: 97,
-  style: 'bold'
-}, {
-  start: 0x1D434,
-  len: 26,
-  offset: 65,
-  style: 'italic'
-}, {
-  start: 0x1D44E,
-  len: 26,
-  offset: 97,
-  style: 'italic'
-}, {
-  start: 0x1D468,
-  len: 26,
-  offset: 65,
-  style: 'bolditalic'
-}, {
-  start: 0x1D482,
-  len: 26,
-  offset: 97,
-  style: 'bolditalic'
-}, {
-  start: 0x1D49c,
-  len: 26,
-  offset: 65,
-  variant: 'script'
-}, {
-  start: 0x1D4b6,
-  len: 26,
-  offset: 97,
-  variant: 'script'
-}, {
-  start: 0x1D4d0,
-  len: 26,
-  offset: 65,
-  variant: 'script',
-  style: 'bold'
-}, {
-  start: 0x1D4ea,
-  len: 26,
-  offset: 97,
-  variant: 'script',
-  style: 'bold'
-}, {
-  start: 0x1D504,
-  len: 26,
-  offset: 65,
-  variant: 'fraktur'
-}, {
-  start: 0x1D51e,
-  len: 26,
-  offset: 97,
-  variant: 'fraktur'
-}, {
-  start: 0x1D56c,
-  len: 26,
-  offset: 65,
-  variant: 'fraktur',
-  style: 'bold'
-}, {
-  start: 0x1D586,
-  len: 26,
-  offset: 97,
-  variant: 'fraktur',
-  style: 'bold'
-}, {
-  start: 0x1D538,
-  len: 26,
-  offset: 65,
-  variant: 'double-struck'
-}, {
-  start: 0x1D552,
-  len: 26,
-  offset: 97,
-  variant: 'double-struck'
-}, {
-  start: 0x1D5A0,
-  len: 26,
-  offset: 65,
-  variant: 'sans-serif'
-}, {
-  start: 0x1D5BA,
-  len: 26,
-  offset: 97,
-  variant: 'sans-serif'
-}, {
-  start: 0x1D5D4,
-  len: 26,
-  offset: 65,
-  variant: 'sans-serif',
-  style: 'bold'
-}, {
-  start: 0x1D5EE,
-  len: 26,
-  offset: 97,
-  variant: 'sans-serif',
-  style: 'bold'
-}, {
-  start: 0x1D608,
-  len: 26,
-  offset: 65,
-  variant: 'sans-serif',
-  style: 'italic'
-}, {
-  start: 0x1D622,
-  len: 26,
-  offset: 97,
-  variant: 'sans-serif',
-  style: 'italic'
-}, {
-  start: 0x1D63c,
-  len: 26,
-  offset: 65,
-  variant: 'sans-serif',
-  style: 'bolditalic'
-}, {
-  start: 0x1D656,
-  len: 26,
-  offset: 97,
-  variant: 'sans-serif',
-  style: 'bolditalic'
-}, {
-  start: 0x1D670,
-  len: 26,
-  offset: 65,
-  variant: 'monospace'
-}, {
-  start: 0x1D68A,
-  len: 26,
-  offset: 97,
-  variant: 'monospace'
-}, {
-  start: 0x1D6A8,
-  len: 25,
-  offset: 0x391,
-  style: 'bold'
-}, {
-  start: 0x1D6C2,
-  len: 25,
-  offset: 0x3B1,
-  style: 'bold'
-}, {
-  start: 0x1D6E2,
-  len: 25,
-  offset: 0x391,
-  style: 'italic'
-}, {
-  start: 0x1D6FC,
-  len: 25,
-  offset: 0x3B1,
-  style: 'italic'
-}, {
-  start: 0x1D71C,
-  len: 25,
-  offset: 0x391,
-  style: 'bolditalic'
-}, {
-  start: 0x1D736,
-  len: 25,
-  offset: 0x3B1,
-  style: 'bolditalic'
-}, {
-  start: 0x1D756,
-  len: 25,
-  offset: 0x391,
-  variant: 'sans-serif',
-  style: 'bold'
-}, {
-  start: 0x1D770,
-  len: 25,
-  offset: 0x3B1,
-  variant: 'sans-serif',
-  style: 'bold'
-}, {
-  start: 0x1D790,
-  len: 25,
-  offset: 0x391,
-  variant: 'sans-serif',
-  style: 'bolditalic'
-}, {
-  start: 0x1D7AA,
-  len: 25,
-  offset: 0x3B1,
-  variant: 'sans-serif',
-  style: 'bolditalic'
-}, {
-  start: 0x1D7CE,
-  len: 10,
-  offset: 48,
-  variant: '',
-  style: 'bold'
-}, {
-  start: 0x1D7D8,
-  len: 10,
-  offset: 48,
-  variant: 'double-struck'
-}, {
-  start: 0x1D7E3,
-  len: 10,
-  offset: 48,
-  variant: 'sans-serif'
-}, {
-  start: 0x1D7Ec,
-  len: 10,
-  offset: 48,
-  variant: 'sans-serif',
-  style: 'bold'
-}, {
-  start: 0x1D7F6,
-  len: 10,
-  offset: 48,
-  variant: 'monospace'
-}];
-
-function unicodeToMathVariant(char) {
-  var codepoint = char;
-  if (typeof char === 'string') codepoint = char.codePointAt(0);
-
-  if ((codepoint < 0x1d400 || codepoint > 0x1d7ff) && (codepoint < 0x2100 || codepoint > 0x214f)) {
-    return {
-      char: char
-    };
-  } // Handle the 'gap' letters by converting them back into their logical range
-
-
-  for (var c in MATH_LETTER_EXCEPTIONS) {
-    if (MATH_LETTER_EXCEPTIONS.hasOwnProperty(c)) {
-      if (MATH_LETTER_EXCEPTIONS[c] === codepoint) {
-        codepoint = c;
-        break;
-      }
-    }
-  }
-
-  for (var i = 0; i < MATH_UNICODE_BLOCKS.length; i++) {
-    if (codepoint >= MATH_UNICODE_BLOCKS[i].start && codepoint < MATH_UNICODE_BLOCKS[i].start + MATH_UNICODE_BLOCKS[i].len) {
-      return {
-        char: String.fromCodePoint(codepoint - MATH_UNICODE_BLOCKS[i].start + MATH_UNICODE_BLOCKS[i].offset),
-        variant: MATH_UNICODE_BLOCKS[i].variant,
-        style: MATH_UNICODE_BLOCKS[i].style
-      };
-    }
-  }
-
-  return {
-    char: char
-  };
-}
-/**
- * Given a character and variant ('bb', 'cal', etc...)
- * return the corresponding unicode character (a string)
- * @param {string} char
- * @param {string} variant
- */
-
-
-function mathVariantToUnicode(char, variant, style) {
-  if (!/[A-Za-z0-9]/.test(char)) return char;
-  if (!variant && !style) return char;
-  var codepoint = char.codePointAt(0);
-
-  for (var i = 0; i < MATH_UNICODE_BLOCKS.length; i++) {
-    if (!variant || MATH_UNICODE_BLOCKS[i].variant === variant) {
-      if (!style || MATH_UNICODE_BLOCKS[i].style === style) {
-        if (codepoint >= MATH_UNICODE_BLOCKS[i].offset && codepoint < MATH_UNICODE_BLOCKS[i].offset + MATH_UNICODE_BLOCKS[i].len) {
-          var result = MATH_UNICODE_BLOCKS[i].start + codepoint - MATH_UNICODE_BLOCKS[i].offset;
-          return String.fromCodePoint(MATH_LETTER_EXCEPTIONS[result] || result);
-        }
-      }
-    }
-  }
-
-  return char;
-}
-
-function codepointToLatex(parseMode, cp) {
-  // Codepoint shortcuts have priority over variants
-  // That is, "\N" vs "\mathbb{N}"
-  if (parseMode === 'text') return String.fromCodePoint(cp);
-  var result;
-  if (CODEPOINT_SHORTCUTS[cp]) return CODEPOINT_SHORTCUTS[cp];
-  var v = unicodeToMathVariant(cp);
-  if (!v.style && !v.variant) return matchCodepoint(parseMode, cp);
-  result = v.char;
-
-  if (v.variant) {
-    result = '\\' + v.variant + '{' + result + '}';
-  }
-
-  if (v.style === 'bold') {
-    result = '\\mathbf{' + result + '}';
-  } else if (v.style === 'italic') {
-    result = '\\mathit{' + result + '}';
-  } else if (v.style === 'bolditalic') {
-    result = '\\mathbf{\\mathit{' + result + '}}';
-  }
-
-  return '\\mathord{' + result + '}';
-}
-
-function unicodeStringToLatex(parseMode, s) {
-  var result = '';
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
-
-  try {
-    for (var _iterator = s[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var cp = _step.value;
-      result += codepointToLatex(parseMode, cp.codePointAt(0));
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator.return != null) {
-        _iterator.return();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
-    }
-  }
-
-  return result;
-}
-/**
- *
- * @param {string} mode
- * @param {string} command
- * @return {boolean} True if command is allowed in the mode
- * (note that command can also be a single character, e.g. "a")
- * @memberof module:definitions
- * @private
- */
-
-
-function commandAllowed(mode, command) {
-  if (FUNCTIONS[command] && (mode !== 'text' || FUNCTIONS[command].allowedInText)) {
-    return true;
-  }
-
-  if ({
-    'text': TEXT_SYMBOLS,
-    'math': MATH_SYMBOLS
-  }[mode][command]) {
-    return true;
-  }
-
-  return false;
-}
-
-function getValue(mode, symbol) {
-  if (mode === 'math') {
-    return MATH_SYMBOLS[symbol] && MATH_SYMBOLS[symbol].value ? MATH_SYMBOLS[symbol].value : symbol;
-  }
-
-  return TEXT_SYMBOLS[symbol] ? TEXT_SYMBOLS[symbol] : symbol;
-}
-
-function getEnvironmentInfo(name) {
-  var result = ENVIRONMENTS[name];
-
-  if (!result) {
-    result = {
-      params: '',
-      parser: null,
-      mathstyle: 'displaystyle',
-      tabular: true,
-      colFormat: [],
-      lFence: '.',
-      rFence: '.' // arrayStretch: 1,
-
-    };
-  }
-
-  return result;
-}
-/**
- * @param {string} symbol    A command (e.g. '\alpha') or a character (e.g. 'a')
- * @param {string} parseMode One of 'math' or 'text'
- * @param {object} macros A macros dictionary
- * @return {object} An info structure about the symbol, or null
- * @memberof module:definitions
- * @private
- */
-
-
-function getInfo(symbol, parseMode, macros) {
-  if (symbol.length === 0) return null;
-  var info = null;
-
-  if (symbol.charAt(0) === '\\') {
-    // This could be a function or a symbol
-    info = FUNCTIONS[symbol];
-
-    if (info) {
-      // We've got a match
-      if (parseMode === 'math' || info.allowedInText) return info; // That's a valid function, but it's not allowed in non-math mode,
-      // and we're in non-math mode
-
-      return null;
-    }
-
-    if (!info) {
-      // It wasn't a function, maybe it's a symbol?
-      if (parseMode === 'math') {
-        info = MATH_SYMBOLS[symbol];
-      } else if (TEXT_SYMBOLS[symbol]) {
-        info = {
-          value: TEXT_SYMBOLS[symbol]
-        };
-      }
-    }
-
-    if (!info) {
-      // Maybe it's a macro
-      var command = symbol.slice(1);
-
-      if (macros && macros[command]) {
-        var def = macros[command];
-
-        if (_typeof(def) === 'object') {
-          def = def.def;
-        }
-
-        var argCount = 0; // Let's see if there are arguments in the definition.
-
-        if (/(^|[^\\])#1/.test(def)) argCount = 1;
-        if (/(^|[^\\])#2/.test(def)) argCount = 2;
-        if (/(^|[^\\])#3/.test(def)) argCount = 3;
-        if (/(^|[^\\])#4/.test(def)) argCount = 4;
-        if (/(^|[^\\])#5/.test(def)) argCount = 5;
-        if (/(^|[^\\])#6/.test(def)) argCount = 6;
-        if (/(^|[^\\])#7/.test(def)) argCount = 7;
-        if (/(^|[^\\])#8/.test(def)) argCount = 8;
-        if (/(^|[^\\])#9/.test(def)) argCount = 9;
-        info = {
-          type: 'group',
-          allowedInText: false,
-          params: [],
-          infix: false
-        };
-
-        while (argCount >= 1) {
-          info.params.push({
-            optional: false,
-            type: 'math',
-            defaultValue: null,
-            placeholder: null
-          });
-          argCount -= 1;
-        }
-      }
-    }
-  } else {
-    if (parseMode === 'math') {
-      info = MATH_SYMBOLS[symbol];
-    } else if (TEXT_SYMBOLS[symbol]) {
-      info = {
-        value: TEXT_SYMBOLS[symbol]
-      };
-    }
-  } // Special case `f`, `g` and `h` are recognized as functions.
-
-
-  if (info && info.type === 'mord' && (info.value === 'f' || info.value === 'g' || info.value === 'h')) {
-    info.isFunction = true;
-  }
-
-  return info;
-}
-/**
- * Return an array of suggestion for completing string 's'.
- * For example, for 'si', it could return ['sin', 'sinh', 'sim', 'simeq', 'sigma']
- * Infix operators are excluded, since they are deprecated commands.
- * @param {string} s
- * @return {string[]}
- * @memberof module:definitions
- * @private
- */
-
-
-function suggest(s) {
-  if (s.length <= 1) return [];
-  var result = []; // Iterate over items in the dictionary
-
-  for (var p in FUNCTIONS) {
-    if (FUNCTIONS.hasOwnProperty(p)) {
-      if (p.startsWith(s) && !FUNCTIONS[p].infix) {
-        result.push({
-          match: p,
-          frequency: FUNCTIONS[p].frequency
-        });
-      }
-    }
-  }
-
-  for (var _p2 in MATH_SYMBOLS) {
-    if (MATH_SYMBOLS.hasOwnProperty(_p2)) {
-      if (_p2.startsWith(s)) {
-        result.push({
-          match: _p2,
-          frequency: MATH_SYMBOLS[_p2].frequency
-        });
-      }
-    }
-  }
-
-  result.sort(function (a, b) {
-    if (a.frequency === b.frequency) {
-      return a.match.length - b.match.length;
-    }
-
-    return (b.frequency || 0) - (a.frequency || 0);
-  });
-  return result;
-} // Fonts
-
-
-var MAIN = ''; // The "main" KaTeX font (in fact one of several
-// depending on the math variant, size, etc...)
-
-var AMS = 'ams'; // Some symbols are not in the "main" KaTeX font
-// or have a different glyph available in the "AMS"
-// font (`\hbar` and `\hslash` for example).
-// Type
-
-var ORD = 'mord';
-var MATHORD = 'mord'; // Ordinary, e.g. '/'
-
-var BIN = 'mbin'; // e.g. '+'
-
-var REL = 'mrel'; // e.g. '='
-
-var OPEN = 'mopen'; // e.g. '('
-
-var CLOSE = 'mclose'; // e.g. ')'
-
-var PUNCT = 'mpunct'; // e.g. ','
-
-var INNER = 'minner'; // for fractions and \left...\right.
-// const ACCENT = 'accent';
-
-var SPACING = 'spacing';
-/**
- * An argument template has the following syntax:
- *
- * <placeholder>:<type>=<default>
- *
- * where
- * - <placeholder> is a string whose value is displayed when the argument
- *   is missing
- * - <type> is one of 'string', 'color', 'dimen', 'auto', 'text', 'math'
- * - <default> is the default value if none is provided for an optional
- * parameter
- *
- * @param {string} argTemplate
- * @param {boolean} isOptional
- * @memberof module:definitions
- * @private
- */
-
-function parseParamTemplateArgument(argTemplate, isOptional) {
-  var r = argTemplate.match(/=(.+)/);
-  var defaultValue = '{}';
-  var type = 'auto';
-  var placeholder = null;
-
-  if (r) {
-    console.assert(isOptional, "Can't provide a default value for required parameters");
-    defaultValue = r[1];
-  } // Parse the type (:type)
-
-
-  r = argTemplate.match(/:([^=]+)/);
-  if (r) type = r[1].trim(); // Parse the placeholder
-
-  r = argTemplate.match(/^([^:=]+)/);
-  if (r) placeholder = r[1].trim();
-  return {
-    optional: isOptional,
-    type: type,
-    defaultValue: defaultValue,
-    placeholder: placeholder
-  };
-}
-
-function parseParamTemplate(paramTemplate) {
-  if (!paramTemplate || paramTemplate.length === 0) return [];
-  var result = [];
-  var params = paramTemplate.split(']');
-
-  if (params[0].charAt(0) === '[') {
-    // We found at least one optional parameter.
-    result.push(parseParamTemplateArgument(params[0].slice(1), true)); // Parse the rest
-
-    for (var i = 1; i <= params.length; i++) {
-      result = result.concat(parseParamTemplate(params[i]));
-    }
-  } else {
-    params = paramTemplate.split('}');
-
-    if (params[0].charAt(0) === '{') {
-      // We found a required parameter
-      result.push(parseParamTemplateArgument(params[0].slice(1), false)); // Parse the rest
-
-      for (var _i2 = 1; _i2 <= params.length; _i2++) {
-        result = result.concat(parseParamTemplate(params[_i2]));
-      }
-    }
-  }
-
-  return result;
-}
-
-function parseArgAsString(arg) {
-  return arg.map(function (x) {
-    return x.body;
-  }).join('');
-}
-/**
- * Define one or more environments to be used with
- *         \begin{<env-name>}...\end{<env-name>}.
- *
- * @param {string|string[]} names
- * @param {string} params The number and type of required and optional parameters.
- * @param {object} options
- * -
- * @param {function(*)} parser
- * @memberof module:definitions
- * @private
- */
-
-
-function defineEnvironment(names, params, options, parser) {
-  if (typeof names === 'string') names = [names];
-  if (!options) options = {};
-  var parsedParams = parseParamTemplate(params); // Set default values of functions
-
-  var data = {
-    // 'category' is a global variable keeping track of the
-    // the current category being defined. This value is used
-    // strictly to group items in generateDocumentation().
-    category: category,
-    // Params: the parameters for this function, an array of
-    // {optional, type, defaultValue, placeholder}
-    params: parsedParams,
-    // Callback to parse the arguments
-    parser: parser,
-    mathstyle: 'displaystyle',
-    tabular: options.tabular || true,
-    colFormat: options.colFormat || []
-  };
-  var _iteratorNormalCompletion2 = true;
-  var _didIteratorError2 = false;
-  var _iteratorError2 = undefined;
-
-  try {
-    for (var _iterator2 = names[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-      var name = _step2.value;
-      ENVIRONMENTS[name] = data;
-    }
-  } catch (err) {
-    _didIteratorError2 = true;
-    _iteratorError2 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-        _iterator2.return();
-      }
-    } finally {
-      if (_didIteratorError2) {
-        throw _iteratorError2;
-      }
-    }
-  }
-}
-/**
- * Define one of more functions.
- *
- * @param {string|string[]} names
- * @param {string} params The number and type of required and optional parameters.
- * For example: '{}' defines a single mandatory parameter
- * '[index=2]{indicand:auto}' defines two params, one optional, one required
-
- * @param {object} options
- * - infix
- * - allowedInText
- * @param {function} parseFunction
- * @memberof module:definitions
- * @private
- */
-
-
-function defineFunction(names, params, options, parseFunction) {
-  if (typeof names === 'string') {
-    names = [names];
-  }
-
-  if (!options) options = {}; // Set default values of functions
-
-  var data = {
-    // 'category' is a global variable keeping track of the
-    // the current category being defined. This value is used
-    // strictly to group items in generateDocumentation().
-    category: category,
-    // The base font family, if present, indicates that this font family
-    // should always be used to render atom. For example, functions such
-    // as "sin", etc... are always drawn in a roman font,
-    // regardless of the font styling a user may specify.
-    baseFontFamily: options.fontFamily,
-    // The parameters for this function, an array of
-    // {optional, type, defaultValue, placeholder}
-    params: parseParamTemplate(params),
-    allowedInText: !!options.allowedInText,
-    infix: !!options.infix,
-    parse: parseFunction
-  };
-  var _iteratorNormalCompletion3 = true;
-  var _didIteratorError3 = false;
-  var _iteratorError3 = undefined;
-
-  try {
-    for (var _iterator3 = names[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-      var name = _step3.value;
-      FUNCTIONS[name] = data;
-    }
-  } catch (err) {
-    _didIteratorError3 = true;
-    _iteratorError3 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
-        _iterator3.return();
-      }
-    } finally {
-      if (_didIteratorError3) {
-        throw _iteratorError3;
-      }
-    }
-  }
-}
-
-category = 'Environments';
-/*
-
-<columns> ::= <column>*<line>
-<column> ::= <line>('l'|'c'|'r')
-<line> ::= '|' | '||' | ''
-
-'math',
-                frequency 0
-'displaymath',
-                frequency 8
-
-'equation'      centered, numbered
-                frequency 8
-
-'subequations'   with an 'equation' environment, appends a letter to eq no
-                frequency 1
-
-'array',        {columns:text}
-                cells are textstyle math
-                no fence
-
-'eqnarray'      DEPRECATED see http://www.tug.org/pracjourn/2006-4/madsen/madsen.pdf
-                {rcl}
-                first and last cell in each row is displaystyle math
-                each cell has a margin of \arraycolsep
-                Each line has a eqno
-                frequency 7
-
-
-'theorem'       text mode. Prepends in bold 'Theorem <counter>', then body in italics.
-
-'multline'      single column
-                first row left aligned, last right aligned, others centered
-                last line has an eqn. counter. multline* will omit the counter
-                no output if inside an equation
-
-
-'gather'        at most two columns
-                first column centered, second column right aligned
-                frequency 1
-
-'gathered'      must be in equation environment
-                single column,
-                centered
-                frequency: COMMON
-                optional argument: [b], [t] to vertical align
-
-'align'        multiple columns,
-                alternating rl
-                there is some 'space' (additional column?) between each pair
-                each line is numbered (except when inside an equation environment)
-                there is an implicit {} at the beginning of left columns
-
-'aligned'      must be in equation environment
-                frequency: COMMON
-                @{}r@{}l@{\quad}@{}r@{}l@{}
-
-'split'         must be in an equation environment,
-                two columns, additional columns are interpreted as line breaks
-                first column is right aligned, second column is left aligned
-                entire construct is numbered (as opposed to 'align' where each line is numbered)
-                frequency: 0
-
-
-'alignedat'
-From AMSMath:
----The alignedat environment was changed to take two arguments rather
-than one: a mandatory argument (as formerly) specifying the number of
-align structures, and a new optional one specifying the placement of the
-environment (parallel to the optional argument of aligned). However,
-aligned is simpler to use, allowing any number of aligned structures
-automatically, and therefore the use of alignedat is deprecated.
-
-
- 'alignat'      {pairs:number}
-                {rl} alternating as many times as indicated by <pairs> arg
-                no space between column pairs (unlike align)
-                there is an implicit {} at the beginning of left columns
-                frequency: 0
-
- 'flalign'      multiple columns
-                alternate rl
-                third column further away than align...?
-                frequency: 0
-
-
-'matrix'        at most 10 columns
-                cells centered
-                no fence
-                no colsep at beginning or end
-                (mathtools package add an optional arg for the cell alignment)
-                frequency: COMMON
-
-'pmatrix'       fence: ()
-                frequency: COMMON
-
-'bmatrix'       fence: []
-                frequency: COMMON
-
-'Bmatrix'       fence: {}
-                frequency: 237
-
-'vmatrix'       fence: \vert
-                frequency: 368
-
-'Vmatrix'       fence: \Vert
-                frequency: 41
-
-'smallmatrix'   displaystyle: scriptstyle (?)
-                frequency: 279
-
-'cases'
-                frequency: COMMON
-                l@{2}l
-
-'center'        text mode only?
-                frequency: ?
-*/
-// See https://en.wikibooks.org/wiki/LaTeX/Mathematics
-// and http://www.ele.uri.edu/faculty/vetter/Other-stuff/latex/Mathmode.pdf
-
-/*
-The star at the end of the name of a displayed math environment causes that
-the formula lines won't be numbered. Otherwise they would automatically get a number.
-
-\notag will also turn off the numbering.
-\shoveright and \shoveleft will force alignment of a line
-
-The only difference between align and equation is the spacing of the formulas.
-You should attempt to use equation when possible, and align when you have multi-line formulas.
-Equation will have space before/after < 1em if line before/after is short enough.
-
-Also: equation throws an error when you have an & inside the environment,
-so look out for that when converting between the two.
-
-
-
-Whereas align produces a structure whose width is the full line width, aligned
-gives a width that is the actual width of the contents, thus it can be used as
-a component in a containing expression, e.g. for putting the entire alignment
-in a parenthesis
-*/
-
-defineEnvironment('math', '', {
-  frequency: 0
-}, function () {
-  return {
-    mathstyle: 'textstyle'
-  };
-});
-defineEnvironment('displaymath', '', {
-  frequency: 8
-}, function () {
-  return {
-    mathstyle: 'displaystyle'
-  };
-}); // defineEnvironment('text', '', {
-//     frequency: 0,
-//     }, function(name, args) {
-//     return {
-//         mathstyle: 'text',         // @todo: not quite right, not a style, a parsemode...
-//     };
-// });
-
-defineEnvironment('array', '{columns:colspec}', {
-  frequency: COMMON
-}, function (name, args) {
-  return {
-    colFormat: args[0],
-    mathstyle: 'textstyle'
-  };
-});
-defineEnvironment('eqnarray', '', {}, function () {
-  return {};
-});
-defineEnvironment('equation', '', {}, function () {
-  return {
-    colFormat: [{
-      align: 'c'
-    }]
-  };
-});
-defineEnvironment('subequations', '', {}, function () {
-  return {
-    colFormat: [{
-      align: 'c'
-    }]
-  };
-}); // Note spelling: MULTLINE, not multiline.
-
-defineEnvironment('multline', '', {}, function () {
-  return {
-    firstRowFormat: [{
-      align: 'l'
-    }],
-    colFormat: [{
-      align: 'c'
-    }],
-    lastRowFormat: [{
-      align: 'r'
-    }]
-  };
-}); // An AMS-Math environment
-// See amsmath.dtx:3565
-// Note that some versions of AMS-Math have a gap on the left.
-// More recent version suppresses that gap, but have an option to turn it back on
-// for backward compatibility.
-
-defineEnvironment(['align', 'aligned'], '', {}, function (name, args, array) {
-  var colCount = 0;
-  var _iteratorNormalCompletion4 = true;
-  var _didIteratorError4 = false;
-  var _iteratorError4 = undefined;
-
-  try {
-    for (var _iterator4 = array[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
-      var row = _step4.value;
-      colCount = Math.max(colCount, row.length);
-    }
-  } catch (err) {
-    _didIteratorError4 = true;
-    _iteratorError4 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
-        _iterator4.return();
-      }
-    } finally {
-      if (_didIteratorError4) {
-        throw _iteratorError4;
-      }
-    }
-  }
-
-  var colFormat = [{
-    gap: 0
-  }, {
-    align: 'r'
-  }, {
-    gap: 0
-  }, {
-    align: 'l'
-  }];
-  var i = 2;
-
-  while (i < colCount) {
-    colFormat.push({
-      gap: 1
-    });
-    colFormat.push({
-      align: 'r'
-    });
-    colFormat.push({
-      gap: 0
-    });
-    colFormat.push({
-      align: 'l'
-    });
-    i += 2;
-  }
-
-  colFormat.push({
-    gap: 0
-  });
-  return {
-    colFormat: colFormat,
-    jot: 0.3 // Jot is an extra gap between lines of numbered equation.
-    // It's 3pt by default in LaTeX (ltmath.dtx:181)
-
-  };
-}); // defineEnvironment('alignat', '', {}, function(name, args) {
-//     return {
-//     };
-// });
-// defineEnvironment('flalign', '', {}, function(name, args) {
-//     return {
-//     };
-// });
-
-defineEnvironment('split', '', {}, function () {
-  return {};
-});
-defineEnvironment(['gather', 'gathered'], '', {}, function () {
-  // An AMS-Math environment
-  // %    The \env{gathered} environment is for several lines that are
-  // %    centered independently.
-  // From amstex.sty
-  // \newenvironment{gathered}[1][c]{%
-  //   \relax\ifmmode\else\nonmatherr@{\begin{gathered}}\fi
-  //   \null\,%
-  //   \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi\fi
-  //   \bgroup\Let@\restore@math@cr
-  //   \ifinany@\else\openup\jot\fi\ialign
-  //   \bgroup\hfil\strut@$\m@th\displaystyle##$\hfil\crcr
-  return {
-    colFormat: [{
-      gap: .25
-    }, {
-      align: 'c'
-    }, {
-      gap: 0
-    }],
-    jot: .3
-  };
-}); // defineEnvironment('cardinality', '', {}, function() {
-//     const result = {};
-//     result.mathstyle = 'textstyle';
-//     result.lFence = '|';
-//     result.rFence = '|';
-//     return result;
-// });
-
-defineEnvironment(['matrix', 'pmatrix', 'bmatrix', 'Bmatrix', 'vmatrix', 'Vmatrix', 'smallmatrix', 'matrix*', 'pmatrix*', 'bmatrix*', 'Bmatrix*', 'vmatrix*', 'Vmatrix*', 'smallmatrix*'], '[columns:colspec]', {}, function (name, args) {
-  // From amstex.sty:
-  // \def\matrix{\hskip -\arraycolsep\array{*\c@MaxMatrixCols c}}
-  // \def\endmatrix{\endarray \hskip -\arraycolsep}
-  var result = {};
-  result.mathstyle = 'textstyle';
-
-  switch (name) {
-    case 'pmatrix':
-    case 'pmatrix*':
-      result.lFence = '(';
-      result.rFence = ')';
-      break;
-
-    case 'bmatrix':
-    case 'bmatrix*':
-      result.lFence = '[';
-      result.rFence = ']';
-      break;
-
-    case 'Bmatrix':
-    case 'Bmatrix*':
-      result.lFence = '\\lbrace';
-      result.rFence = '\\rbrace';
-      break;
-
-    case 'vmatrix':
-    case 'vmatrix*':
-      result.lFence = '\\vert';
-      result.rFence = '\\vert';
-      break;
-
-    case 'Vmatrix':
-    case 'Vmatrix*':
-      result.lFence = '\\Vert';
-      result.rFence = '\\Vert';
-      break;
-
-    case 'smallmatrix':
-    case 'smallmatrix*':
-      result.mathstyle = 'scriptstyle';
-      break;
-
-    case 'matrix':
-    case 'matrix*':
-      // Specifying a fence, even a null fence,
-      // will prevent the insertion of an initial and final gap
-      result.lFence = '.';
-      result.rFence = '.';
-      break;
-
-    default:
-  }
-
-  result.colFormat = args[0] || [{
-    align: 'c'
-  }, {
-    align: 'c'
-  }, {
-    align: 'c'
-  }, {
-    align: 'c'
-  }, {
-    align: 'c'
-  }, {
-    align: 'c'
-  }, {
-    align: 'c'
-  }, {
-    align: 'c'
-  }, {
-    align: 'c'
-  }, {
-    align: 'c'
-  }];
-  return result;
-});
-defineEnvironment('cases', '', {}, function () {
-  // From amstex.sty:
-  // \def\cases{\left\{\def\arraystretch{1.2}\hskip-\arraycolsep
-  //   \array{l@{\quad}l}}
-  // \def\endcases{\endarray\hskip-\arraycolsep\right.}
-  // From amsmath.dtx
-  // \def\env@cases{%
-  //   \let\@ifnextchar\new@ifnextchar
-  //   \left\lbrace
-  //   \def\arraystretch{1.2}%
-  //   \array{@{}l@{\quad}l@{}}%
-  return {
-    arraystretch: 1.2,
-    lFence: '\\lbrace',
-    rFence: '.',
-    colFormat: [{
-      align: 'l'
-    }, {
-      gap: 1
-    }, {
-      align: 'l'
-    }]
-  };
-});
-defineEnvironment('theorem', '', {}, function () {
-  return {};
-});
-defineEnvironment('center', '', {}, function () {
-  return {
-    colFormat: [{
-      align: 'c'
-    }]
-  };
-});
-category = ''; // Simple characters allowed in math mode
-
-defineSymbols('0123456789/@.');
-defineSymbolRange(0x0041, 0x005A); // a-z
-
-defineSymbolRange(0x0061, 0x007A); // A-Z
-
-category = 'Trigonometry';
-defineFunction(['\\arcsin', '\\arccos', '\\arctan', '\\arctg', '\\arcctg', '\\arg', '\\ch', '\\cos', '\\cosec', '\\cosh', '\\cot', '\\cotg', '\\coth', '\\csc', '\\ctg', '\\cth', '\\sec', '\\sin', '\\sinh', '\\sh', '\\tan', '\\tanh', '\\tg', '\\th'], '', null, function (name) {
-  return {
-    type: 'mop',
-    limits: 'nolimits',
-    symbol: false,
-    isFunction: true,
-    body: name.slice(1),
-    baseFontFamily: 'cmr'
-  };
-});
-frequency(SUPERCOMMON, '\\cos', '\\sin', '\\tan');
-frequency(UNCOMMON, '\\arcsin', '\\arccos', '\\arctan', '\\arctg', '\\arcctg', '\\arcsec', '\\arccsc');
-frequency(UNCOMMON, '\\arsinh', '\\arccosh', '\\arctanh', '\\arcsech', '\\arccsch');
-frequency(UNCOMMON, '\\arg', '\\ch', '\\cosec', '\\cosh', '\\cot', '\\cotg', '\\coth', '\\csc', '\\ctg', '\\cth', '\\lg', '\\lb', '\\sec', '\\sinh', '\\sh', '\\tanh', '\\tg', '\\th');
-category = 'Functions';
-defineFunction(['\\deg', '\\dim', '\\exp', '\\hom', '\\ker', '\\lb', '\\lg', '\\ln', '\\log'], '', null, function (name) {
-  return {
-    type: 'mop',
-    limits: 'nolimits',
-    symbol: false,
-    isFunction: true,
-    body: name.slice(1),
-    baseFontFamily: 'cmr'
-  };
-});
-frequency(SUPERCOMMON, '\\ln', '\\log', '\\exp');
-frequency(292, '\\hom');
-frequency(COMMON, '\\dim');
-frequency(COMMON, '\\ker', '\\deg'); // >2,000
-
-defineFunction(['\\lim', '\\mod'], '', null, function (name) {
-  return {
-    type: 'mop',
-    limits: 'limits',
-    symbol: false,
-    body: name.slice(1),
-    baseFontFamily: 'cmr'
-  };
-});
-defineFunction(['\\det', '\\max', '\\min'], '', null, function (name) {
-  return {
-    type: 'mop',
-    limits: 'limits',
-    symbol: false,
-    isFunction: true,
-    body: name.slice(1),
-    baseFontFamily: 'cmr'
-  };
-});
-frequency(SUPERCOMMON, '\\lim');
-frequency(COMMON, '\\det');
-frequency(COMMON, '\\mod');
-frequency(COMMON, '\\min');
-frequency(COMMON, '\\max');
-category = 'Decoration'; // A box of the width and height
-
-defineFunction('\\rule', '[raise:dimen]{width:dimen}{thickness:dimen}', null, function (name, args) {
-  return {
-    type: 'rule',
-    shift: args[0],
-    width: args[1],
-    height: args[2]
-  };
-});
-defineFunction('\\color', '{:color}', {
-  allowedInText: true
-}, function (_name, args) {
-  return {
-    color: args[0]
-  };
-}); // From the xcolor package.
-// As per xcolor, this command does not set the mode to text
-// (unlike what its name might suggest)
-
-defineFunction('\\textcolor', '{:color}{content:auto*}', {
-  allowedInText: true
-}, function (_name, args) {
-  return {
-    color: args[0]
-  };
-});
-frequency(3, '\\textcolor'); // An overline
-
-defineFunction('\\overline', '{:auto}', null, function (name, args) {
-  return {
-    type: 'line',
-    position: 'overline',
-    skipBoundary: true,
-    body: args[0]
-  };
-});
-frequency(COMMON, '\\overline'); // > 2,000
-
-defineFunction("\\underline", '{:auto}', null, function (name, args) {
-  return {
-    type: 'line',
-    position: 'underline',
-    skipBoundary: true,
-    body: args[0]
-  };
-});
-frequency(COMMON, "\\underline"); // > 2,000
-
-defineFunction('\\overset', '{annotation:auto}{symbol:auto}', null, function (name, args) {
-  return {
-    type: 'overunder',
-    overscript: args[0],
-    skipBoundary: true,
-    body: args[1]
-  };
-});
-frequency(COMMON, '\\overset'); // > 2,000
-
-defineFunction("\\underset", '{annotation:auto}{symbol:auto}', null, function (name, args) {
-  return {
-    type: 'overunder',
-    underscript: args[0],
-    skipBoundary: true,
-    body: args[1]
-  };
-});
-frequency(COMMON, "\\underset"); // > 2,000
-
-defineFunction(['\\stackrel', '\\stackbin'], '{annotation:auto}{symbol:auto}', null, function (name, args) {
-  return {
-    type: 'overunder',
-    overscript: args[0],
-    skipBoundary: true,
-    body: args[1],
-    mathtype: name === '\\stackrel' ? 'mrel' : 'mbin'
-  };
-});
-frequency(COMMON, '\\stackrel'); // > 2,000
-
-frequency(0, '\\stackbin');
-defineFunction('\\rlap', '{:auto}', null, function (name, args) {
-  return {
-    type: 'overlap',
-    align: 'right',
-    skipBoundary: true,
-    body: args[0]
-  };
-});
-frequency(270, '\\rlap');
-defineFunction('\\llap', '{:auto}', null, function (name, args) {
-  return {
-    type: 'overlap',
-    align: 'left',
-    skipBoundary: true,
-    body: args[0]
-  };
-});
-frequency(18, '\\llap');
-defineFunction('\\mathrlap', '{:auto}', null, function (name, args) {
-  return {
-    type: 'overlap',
-    mode: 'math',
-    align: 'right',
-    skipBoundary: true,
-    body: args[0]
-  };
-});
-frequency(CRYPTIC, '\\mathrlap');
-defineFunction('\\mathllap', '{:auto}', null, function (name, args) {
-  return {
-    type: 'overlap',
-    mode: 'math',
-    align: 'left',
-    skipBoundary: true,
-    body: args[0]
-  };
-});
-frequency(CRYPTIC, '\\mathllap'); // Can be preceded by e.g. '\fboxsep=4pt' (also \fboxrule)
-// Note:
-// - \boxed: sets content in displaystyle mode (@todo: should change type of argument)
-//      equivalent to \fbox{$$<content>$$}
-// - \fbox: sets content in 'auto' mode (frequency 777)
-// - \framebox[<width>][<alignment>]{<content>} (<alignment> := 'c'|'t'|'b' (center, top, bottom) (frequency 28)
-// @todo
-
-defineFunction('\\boxed', '{content:math}', null, function (name, args) {
-  return {
-    type: 'box',
-    framecolor: 'black',
-    skipBoundary: true,
-    body: args[0]
-  };
-});
-frequency(1236, '\\boxed');
-defineFunction('\\colorbox', '{background-color:color}{content:auto}', {
-  allowedInText: true
-}, function (name, args) {
-  return {
-    type: 'box',
-    backgroundcolor: args[0],
-    skipBoundary: true,
-    body: args[1]
-  };
-});
-frequency(CRYPTIC, '\\colorbox');
-defineFunction('\\fcolorbox', '{frame-color:color}{background-color:color}{content:auto}', {
-  allowedInText: true
-}, function (name, args) {
-  return {
-    type: 'box',
-    framecolor: args[0],
-    backgroundcolor: args[1],
-    skipBoundary: true,
-    body: args[2]
-  };
-});
-frequency(CRYPTIC, '\\fcolorbox'); // \bbox, MathJax extension
-// The first argument is a CSS border property shorthand, e.g.
-// \bbox[red], \bbox[5px,border:2px solid red]
-// The MathJax syntax is
-// arglist ::= <arg>[,<arg>[,<arg>]]
-// arg ::= [<background:color>|<padding:dimen>|<style>]
-// style ::= 'border:' <string>
-
-defineFunction('\\bbox', '[:bbox]{body:auto}', {
-  allowedInText: true
-}, function (name, args) {
-  if (args[0]) {
-    return {
-      type: 'box',
-      padding: args[0].padding,
-      border: args[0].border,
-      backgroundcolor: args[0].backgroundcolor,
-      skipBoundary: true,
-      body: args[1]
-    };
-  }
-
-  return {
-    type: 'box',
-    skipBoundary: true,
-    body: args[1]
-  };
-});
-frequency(CRYPTIC, '\\bbox'); // \enclose, a MathJax extension mapping to the MathML `menclose` tag.
-// The first argument is a comma delimited list of notations, as defined
-// here: https://developer.mozilla.org/en-US/docs/Web/MathML/Element/menclose
-// The second, optional, specifies the style to use for the notations.
-
-defineFunction('\\enclose', '{notation:string}[style:string]{body:auto}', null, function (name, args) {
-  var notations = args[0] || [];
-  var result = {
-    type: 'enclose',
-    strokeColor: 'currentColor',
-    strokeWidth: 1,
-    strokeStyle: 'solid',
-    backgroundcolor: 'transparent',
-    padding: 'auto',
-    shadow: 'auto',
-    captureSelection: true,
-    // Do not let children be selected
-    body: args[2] // Extract info from style string
-
-  };
-
-  if (args[1]) {
-    // Split the string by comma delimited sub-strings, ignoring commas
-    // that may be inside (). For example"x, rgb(a, b, c)" would return
-    // ['x', 'rgb(a, b, c)']
-    var styles = args[1].split(/,(?![^(]*\)(?:(?:[^(]*\)){2})*[^"]*$)/);
-    var _iteratorNormalCompletion5 = true;
-    var _didIteratorError5 = false;
-    var _iteratorError5 = undefined;
-
-    try {
-      for (var _iterator5 = styles[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
-        var s = _step5.value;
-        var shorthand = s.match(/\s*(\S+)\s+(\S+)\s+(.*)/);
-
-        if (shorthand) {
-          result.strokeWidth = _fontMetrics.default.toPx(shorthand[1], 'px');
-
-          if (!isFinite(result.strokeWidth)) {
-            result.strokeWidth = 1;
-          }
-
-          result.strokeStyle = shorthand[2];
-          result.strokeColor = shorthand[3];
-        } else {
-          var attribute = s.match(/\s*([a-z]*)\s*=\s*"(.*)"/);
-
-          if (attribute) {
-            if (attribute[1] === 'mathbackground') {
-              result.backgroundcolor = attribute[2];
-            } else if (attribute[1] === 'mathcolor') {
-              result.strokeColor = attribute[2];
-            } else if (attribute[1] === 'padding') {
-              result.padding = _fontMetrics.default.toPx(attribute[2], 'px');
-            } else if (attribute[1] === 'shadow') {
-              result.shadow = attribute[2];
-            }
-          }
-        }
-      }
-    } catch (err) {
-      _didIteratorError5 = true;
-      _iteratorError5 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
-          _iterator5.return();
-        }
-      } finally {
-        if (_didIteratorError5) {
-          throw _iteratorError5;
-        }
-      }
-    }
-
-    if (result.strokeStyle === 'dashed') {
-      result.svgStrokeStyle = '5,5';
-    } else if (result.strokeStyle === 'dotted') {
-      result.svgStrokeStyle = '1,5';
-    }
-  }
-
-  result.borderStyle = result.strokeWidth + 'px ' + result.strokeStyle + ' ' + result.strokeColor; // Normalize the list of notations.
-
-  notations = notations.toString().split(/[, ]/).filter(function (v) {
-    return v.length > 0;
-  }).map(function (v) {
-    return v.toLowerCase();
-  });
-  result.notation = {};
-  var _iteratorNormalCompletion6 = true;
-  var _didIteratorError6 = false;
-  var _iteratorError6 = undefined;
-
-  try {
-    for (var _iterator6 = notations[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
-      var notation = _step6.value;
-      result.notation[notation] = true;
-    }
-  } catch (err) {
-    _didIteratorError6 = true;
-    _iteratorError6 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
-        _iterator6.return();
-      }
-    } finally {
-      if (_didIteratorError6) {
-        throw _iteratorError6;
-      }
-    }
-  }
-
-  if (result.notation['updiagonalarrow']) result.notation['updiagonalstrike'] = false;
-
-  if (result.notation['box']) {
-    result.notation['left'] = false;
-    result.notation['right'] = false;
-    result.notation['bottom'] = false;
-    result.notation['top'] = false;
-  }
-
-  return result;
-});
-frequency(CRYPTIC, '\\enclose');
-defineFunction('\\cancel', '{body:auto}', null, function (name, args) {
-  return {
-    type: 'enclose',
-    strokeColor: 'currentColor',
-    strokeWidth: 1,
-    strokeStyle: 'solid',
-    borderStyle: '1px solid currentColor',
-    backgroundcolor: 'transparent',
-    padding: 'auto',
-    shadow: 'auto',
-    notation: {
-      "updiagonalstrike": true
-    },
-    body: args[0]
-  };
-});
-defineFunction('\\bcancel', '{body:auto}', null, function (name, args) {
-  return {
-    type: 'enclose',
-    strokeColor: 'currentColor',
-    strokeWidth: 1,
-    strokeStyle: 'solid',
-    borderStyle: '1px solid currentColor',
-    backgroundcolor: 'transparent',
-    padding: 'auto',
-    shadow: 'auto',
-    notation: {
-      "downdiagonalstrike": true
-    },
-    body: args[0]
-  };
-});
-defineFunction('\\xcancel', '{body:auto}', null, function (name, args) {
-  return {
-    type: 'enclose',
-    strokeColor: 'currentColor',
-    strokeWidth: 1,
-    strokeStyle: 'solid',
-    borderStyle: '1px solid currentColor',
-    backgroundcolor: 'transparent',
-    padding: 'auto',
-    shadow: 'auto',
-    notation: {
-      "updiagonalstrike": true,
-      "downdiagonalstrike": true
-    },
-    body: args[0]
-  };
-});
-frequency(CRYPTIC, '\\cancel', '\\bcancel', '\\xcancel');
-category = 'Styling'; // Size
-
-defineFunction(['\\tiny', '\\scriptsize', '\\footnotesize', '\\small', '\\normalsize', '\\large', '\\Large', '\\LARGE', '\\huge', '\\Huge'], '', {
-  allowedInText: true
-}, function (name, _args) {
-  return {
-    fontSize: {
-      'tiny': 'size1',
-      'scriptsize': 'size2',
-      'footnotesize': 'size3',
-      'small': 'size4',
-      'normalsize': 'size5',
-      'large': 'size6',
-      'Large': 'size7',
-      'LARGE': 'size8',
-      'huge': 'size9',
-      'Huge': 'size10'
-    }[name.slice(1)]
-  };
-}); // SERIES: weight
-
-defineFunction('\\fontseries', '{:text}', {
-  allowedInText: true
-}, function (_name, args) {
-  return {
-    fontSeries: parseArgAsString(args[0])
-  };
-});
-defineFunction('\\bf', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontSeries: 'b'
-  };
-});
-defineFunction('\\bm', '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontSeries: 'b'
-  };
-}); // Note: switches to math mode
-
-defineFunction('\\bold', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'math',
-    fontSeries: 'b'
-  };
-});
-defineFunction(['\\mathbf', '\\boldsymbol'], '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'math',
-    fontSeries: 'b',
-    fontShape: 'n'
-  };
-});
-defineFunction('\\bfseries', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontSeries: 'b'
-  };
-});
-defineFunction('\\textbf', '{:text*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontSeries: 'b'
-  };
-});
-defineFunction('\\mathmd', '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'math',
-    fontSeries: 'm',
-    fontShape: 'n'
-  };
-});
-defineFunction('\\mdseries', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontSeries: 'm'
-  };
-});
-defineFunction('\\textmd', '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontSeries: 'm'
-  };
-}); // @todo \textlf
-// SHAPE: italic, small caps
-
-defineFunction('\\fontshape', '{:text}', {
-  allowedInText: true
-}, function (_name, args) {
-  return {
-    fontShape: parseArgAsString(args[0])
-  };
-});
-defineFunction('\\it', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontShape: 'it'
-  };
-});
-defineFunction('\\mathit', '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'math',
-    fontSeries: 'm',
-    fontShape: 'it'
-  };
-});
-defineFunction("\\upshape", '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontShape: 'n'
-  };
-});
-defineFunction('\\textup', '{:text*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontShape: 'n'
-  };
-});
-defineFunction('\\textit', '{:text*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontShape: 'it'
-  };
-});
-defineFunction('\\slshape', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontShape: 'sl'
-  };
-});
-defineFunction('\\textsl', '{:text*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontShape: 'sl'
-  };
-}); // Small caps (switches to text mode)
-
-defineFunction('\\scshape', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'text',
-    fontShape: 'sc'
-  };
-});
-defineFunction('\\textsc', '{:text*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontShape: 'sc'
-  };
-}); // FONT FAMILY: Fraktur, Calligraphic, ...
-
-defineFunction('\\fontfamily', '{:text}', {
-  allowedInText: true
-}, function (_name, args) {
-  return {
-    fontFamily: parseArgAsString(args[0])
-  };
-});
-defineFunction('\\mathrm', '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'math',
-    fontFamily: 'cmr',
-    fontSeries: 'm',
-    fontShape: 'n'
-  };
-});
-defineFunction('\\rmfamily', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontFamily: 'cmr'
-  };
-});
-defineFunction('\\textrm', '{:text*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontFamily: 'cmr'
-  };
-});
-defineFunction('\\mathsf', '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'math',
-    baseFontFamily: 'cmss',
-    fontSeries: 'm',
-    fontShape: 'n'
-  };
-});
-defineFunction('\\sffamily', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontFamily: 'cmss'
-  };
-});
-defineFunction('\\textsf', '{:text*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontFamily: 'cmss'
-  };
-});
-defineFunction('\\mathtt', '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'math',
-    baseFontFamily: 'cmtt',
-    fontSeries: 'm',
-    fontShape: 'n'
-  };
-});
-defineFunction('\\ttfamily', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontFamily: 'cmtt'
-  };
-});
-defineFunction('\\texttt', '{:text*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontFamily: 'cmtt'
-  };
-});
-defineFunction(['\\Bbb', '\\mathbb'], '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'math',
-    baseFontFamily: 'bb'
-  };
-});
-defineFunction(['\\frak', '\\mathfrak'], '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    baseFontFamily: 'frak'
-  };
-});
-defineFunction('\\mathcal', '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'math',
-    baseFontFamily: 'cal',
-    fontSeries: 'm',
-    fontShape: 'n'
-  };
-});
-defineFunction('\\mathscr', '{:math*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    mode: 'math',
-    baseFontFamily: 'scr',
-    fontSeries: 'm',
-    fontShape: 'n'
-  };
-});
-frequency(SUPERCOMMON, '\\mathbb');
-frequency(1081, '\\Bbb');
-frequency(0, '\\mathcal');
-frequency(COMMON, '\\mathfrak');
-frequency(271, '\\frak');
-frequency(COMMON, '\\mathscr');
-frequency(UNCOMMON, '\\mathsf');
-frequency(COMMON, '\\mathtt');
-frequency(COMMON, '\\boldsymbol'); // frequency(780, '\\tt');
-// @todo: family could be 'none' or 'default'
-// "normal" font of the body text, not necessarily roman
-
-defineFunction('\\textnormal', '{:text*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    fontFamily: 'cmr',
-    fontShape: 'n',
-    fontSeries: 'n'
-  };
-}); // Rough synomym for \text{}
-
-/*
-An \mbox within math mode does not use the current math font; rather it uses
-the typeface of the surrounding running text.
-*/
-
-defineFunction('\\mbox', '{:text*}', null, function (_name, _args) {
-  return {
-    fontFamily: 'cmr'
-  };
-});
-defineFunction('\\text', '{:text*}', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {};
-});
-/* A MathJax extension: assign a class to the element */
-
-defineFunction('\\class', '{name:text}{content:auto*}', {
-  allowedInText: true
-}, function (_name, args) {
-  return {
-    cssClass: parseArgAsString(args[0])
-  };
-});
-/* A MathJax extension: assign an ID to the element */
-
-defineFunction('\\cssId', '{id:text}{content:auto}', {
-  allowedInText: true
-}, function (_name, args) {
-  return {
-    cssId: parseArgAsString(args[0]),
-    body: args[1],
-    type: 'group'
-  };
-});
-/* Note: in TeX, \em is restricted to text mode. We extend it to math */
-
-defineFunction('\\em', '', {
-  allowedInText: true
-}, function (_name, _args) {
-  return {
-    cssClass: 'ML__emph',
-    type: 'group'
-  };
-});
-/* Note: in TeX, \emph is restricted to text mode. We extend it to math */
-
-defineFunction('\\emph', '{:auto}', {
-  allowedInText: true
-}, function (_name, args) {
-  return {
-    cssClass: 'ML__emph',
-    body: args[0],
-    type: 'group',
-    skipBoundary: true
-  };
-});
-frequency(COMMON, '\\textrm');
-frequency(COMMON, '\\textit');
-frequency(COMMON, '\\textsf');
-frequency(COMMON, '\\texttt');
-frequency(433, '\\textnormal');
-frequency(COMMON, '\\textbf');
-frequency(421, '\\textup');
-frequency(819, '\\emph');
-frequency(49, '\\em');
-category = 'Operators'; // Root
-
-defineFunction('\\sqrt', '[index:auto]{radicand:auto}', null, function (name, args) {
-  return {
-    type: 'surd',
-    body: args[1],
-    index: args[0]
-  };
-});
-frequency(SUPERCOMMON, '\\sqrt');
-category = 'Fractions'; // Fractions
-
-defineFunction(['\\frac', '\\dfrac', '\\tfrac', '\\cfrac', '\\binom', '\\dbinom', '\\tbinom'], '{numerator}{denominator}', null, function (name, args) {
-  var result = {
-    type: 'genfrac',
-    numer: args[0],
-    denom: args[1],
-    mathstyle: 'auto'
-  };
-
-  switch (name) {
-    case '\\dfrac':
-    case '\\frac':
-    case '\\tfrac':
-    case '\\cfrac':
-      result.hasBarLine = true;
-      break;
-
-    case '\\\\atopfrac':
-      result.hasBarLine = false;
-      break;
-
-    case '\\dbinom':
-    case '\\binom':
-    case '\\tbinom':
-      result.hasBarLine = false;
-      result.leftDelim = '(';
-      result.rightDelim = ')';
-      break;
-  }
-
-  switch (name) {
-    case '\\dfrac':
-    case '\\dbinom':
-      result.mathstyle = 'displaystyle';
-      break;
-
-    case '\\tfrac':
-    case '\\tbinom':
-      result.mathstyle = 'textstyle';
-      break;
-  }
-
-  if (name === '\\cfrac') {
-    result.continuousFraction = true;
-  }
-
-  return result;
-});
-/* \\substack: frequency 16 */
-
-/*
-\over = \above 0.4pt
-\atop = \above 0pt
-\choose = \atopwithdelims()
-*/
-// infix commands:
-// {above}\atop{below} --> \genfrac{}{}{0pt}{above}{below}
-// {above}\atopwithdelims{leftdelim}{rightdelim}{below} --> \genfrac{leftdelim}{rightdelim}{0pt}{0/1/2/3}{above}{below}
-//  Note: 0/1/2/3 -> displaystyle, textstyle, scriptstyle, scriptscriptstyle
-// \atopwithdelimiters
-// a\above 0.5pt b               -->
-// \abovewithdelims
-// \choose              --> \binom
-// \choose = \atopwithdelims()          INFIX
-// \def\brack{\atopwithdelims[]}        INFIX
-// \def\brace{\atopwithdelims\{\}}      INFIX
-// '\\above', /* {dim} 122 */
-// '\\overwithdelims' /* {leftdelim}{rightdelim} w/ barline 15 */,
-// '\\atopwithdelims' /* {leftdelim}{rightdelim} no barline 0 */,
-// '\\atop' /* nodelims, no barline 0 */,
-// '\\brack', '\\brace' like \choose, but
-//      with braces and brackets fences. 0 usage in latexsearch */
-
-defineFunction(['\\over'
-/* 21 */
-, '\\atop'
-/* 12 */
-, '\\choose'
-/* 1968 */
-], '', {
-  infix: true
-}, function (name, args) {
-  var numer = args[0];
-  var denom = args[1];
-  var hasBarLine = false;
-  var leftDelim = null;
-  var rightDelim = null;
-
-  switch (name) {
-    case '\\atop':
-      break;
-
-    case '\\over':
-      hasBarLine = true;
-      break;
-
-    case '\\choose':
-      hasBarLine = false;
-      leftDelim = '(';
-      rightDelim = ')';
-      break;
-
-    default:
-      throw new Error('Unrecognized genfrac command');
-  }
-
-  return {
-    type: 'genfrac',
-    numer: numer,
-    denom: denom,
-    hasBarLine: hasBarLine,
-    leftDelim: leftDelim,
-    rightDelim: rightDelim,
-    mathstyle: 'auto'
-  };
-});
-frequency(21, '\\over');
-frequency(12, '\\atop');
-frequency(1968, '\\choose');
-defineFunction(['\\overwithdelims'
-/* 21 */
-, '\\atopwithdelims'
-/* COMMON */
-], '{left-delim:delim}{right-delim:delim}', {
-  infix: true
-}, function (name, args) {
-  return {
-    type: 'genfrac',
-    numer: args[0],
-    denom: args[1],
-    hasBarLine: false,
-    leftDelim: args[2],
-    rightDelim: args[3],
-    mathstyle: 'auto'
-  };
-});
-frequency(15, '\\overwithdelims');
-frequency(COMMON, '\\atopwithdelims'); // frequency(COMMON, '\\frac');
-// frequency(UNCOMMON, '\\binom');
-// frequency(RARE, '\\dfrac', '\\tfrac', '\\dbinom', '\\tbinom');
-// Slashed package
-
-/*
-defineFunction('\\slashed'
-*/
-
-category = 'Fractions';
-defineFunction('\\pdiff', '{numerator}{denominator}', null, function (_funcname, args) {
-  return {
-    type: 'genfrac',
-    numer: args[0],
-    denom: args[1],
-    numerPrefix: "\u2202",
-    denomPrefix: "\u2202",
-    hasBarLine: true,
-    leftDelim: null,
-    rightDelim: null,
-    mathstyle: 'auto'
-  };
-}); // frequency(RARE, '\\pdiff');
-// Quantifiers
-
-category = 'Quantifiers';
-defineSymbol('\\forall', MAIN, MATHORD, "\u2200", SUPERCOMMON);
-defineSymbol('\\exists', MAIN, MATHORD, "\u2203", SUPERCOMMON);
-defineSymbol('\\nexists', AMS, MATHORD, "\u2204", SUPERCOMMON);
-defineSymbol('\\mid', MAIN, REL, "\u2223", COMMON);
-defineSymbol('\\top', MAIN, MATHORD, "\u22A4", RARE);
-defineSymbol('\\bot', MAIN, MATHORD, "\u22A5", RARE);
-category = 'Variable Sized Symbols'; // Limits, symbols
-
-defineFunction(['\\sum', '\\prod', '\\bigcup', '\\bigcap', '\\coprod', '\\bigvee', '\\bigwedge', '\\biguplus', '\\bigotimes', '\\bigoplus', '\\bigodot', '\\bigsqcup', '\\smallint', '\\intop'], '', null, function (name) {
-  return {
-    type: 'mop',
-    limits: 'auto',
-    symbol: true,
-    baseFontFamily: 'cmr',
-    body: {
-      'coprod': "\u2210",
-      'bigvee': "\u22C1",
-      'bigwedge': "\u22C0",
-      'biguplus': "\u2A04",
-      'bigcap': "\u22C2",
-      'bigcup': "\u22C3",
-      'intop': "\u222B",
-      'prod': "\u220F",
-      'sum': "\u2211",
-      'bigotimes': "\u2A02",
-      'bigoplus': "\u2A01",
-      'bigodot': "\u2A00",
-      'bigsqcup': "\u2A06",
-      'smallint': "\u222B"
-    }[name.slice(1)]
-  };
-}); // No limits, symbols
-
-defineFunction(['\\int', '\\iint', '\\iiint', '\\oint', '\\oiint', '\\oiiint', '\\intclockwise', '\\varointclockwise', '\\ointctrclockwise', '\\intctrclockwise'], '', null, function (name) {
-  return {
-    type: 'mop',
-    limits: 'nolimits',
-    symbol: true,
-    body: {
-      'int': "\u222B",
-      'iint': "\u222C",
-      'iiint': "\u222D",
-      'oint': "\u222E",
-      'oiint': "\u222F",
-      'oiiint': "\u2230",
-      'intclockwise': "\u2231",
-      'varointclockwise': "\u2232",
-      'ointctrclockwise': "\u2233",
-      'intctrclockwise': "\u2A11"
-    }[name.slice(1)]
-  };
-});
-frequency(SUPERCOMMON, '\\sum', '\\prod', '\\bigcap', '\\bigcup', '\\int');
-frequency(COMMON, '\\bigoplus', '\\smallint', '\\iint', '\\oint');
-frequency(RARE, '\\bigwedge', '\\bigvee');
-frequency(756, '\\coprod');
-frequency(723, '\\bigsqcup');
-frequency(1241, '\\bigotimes');
-frequency(150, '\\bigodot');
-frequency(174, '\\biguplus');
-frequency(878, '\\iiint');
-frequency(97, '\\intop'); // Misc Symbols
-
-category = 'Various';
-defineSymbol('\\sharp', MAIN, MATHORD, "\u266F", COMMON); // >2,000
-
-defineSymbol('\\flat', MAIN, MATHORD, "\u266D", 590);
-defineSymbol('\\natural', MAIN, MATHORD, "\u266E", 278);
-defineSymbol('\\#', MAIN, MATHORD, "#", RARE);
-defineSymbol('\\&', MAIN, MATHORD, "&", RARE);
-defineSymbol('\\clubsuit', MAIN, MATHORD, "\u2663", 172);
-defineSymbol('\\heartsuit', MAIN, MATHORD, "\u2661", ARCANE);
-defineSymbol('\\spadesuit', MAIN, MATHORD, "\u2660", ARCANE);
-defineSymbol('\\diamondsuit', MAIN, MATHORD, "\u2662", CRYPTIC); // defineSymbol( '\\cross',  MAIN,  MATHORD, '\uF4A0'); // NOTE: not a real TeX symbol, but Mathematica
-// defineSymbol( '\\transpose',  MAIN,  MATHORD, '\uF3C7'); // NOTE: not a real TeX symbol, but Mathematica
-// defineSymbol( '\\conjugate', 'conj'],  MAIN,  MATHORD, '\uF3C8'); // NOTE: not a real TeX symbol, but Mathematica
-// defineSymbol( '\\conjugatetranspose',  MAIN,  MATHORD, '\uF3C9'); // NOTE: not a real TeX symbol, but Mathematica
-// defineSymbol( '\\hermitianconjugate',  MAIN,  MATHORD, '\uF3CE'); // NOTE: not a real TeX symbol, but Mathematica
-
-defineSymbol('\\differencedelta', MAIN, REL, "\u2206", COMMON);
-category = 'Letters and Letter Like Forms';
-defineFunction("\\unicode", '{charcode:number}', null, function (name, args) {
-  var codepoint = parseInt(args[0]);
-  if (!isFinite(codepoint)) codepoint = 0x2753; // BLACK QUESTION MARK
-
-  return {
-    type: 'mord',
-    body: String.fromCodePoint(codepoint)
-  };
-});
-defineSymbol('\\backslash', MAIN, MATHORD, '\\');
-defineSymbol('?', MAIN, MATHORD, '?');
-defineSymbol('!', MAIN, MATHORD, '!');
-defineSymbol('\\nabla', MAIN, MATHORD, "\u2207", SUPERCOMMON);
-defineSymbol('\\partial', MAIN, MATHORD, "\u2202", SUPERCOMMON); // >2,000
-
-defineSymbol('\\ell', MAIN, MATHORD, "\u2113", COMMON); // >2,000
-
-defineSymbol('\\imaginaryI', MAIN, MATHORD, 'i'); // NOTE: not a real TeX symbol, but Mathematica
-// NOTE: set in math as per ISO 80000-2:2009.
-
-defineSymbol('\\imaginaryJ', MAIN, MATHORD, 'j'); // NOTE: not a real TeX symbol, but Mathematica
-// NOTE: set in math as per ISO 80000-2:2009.
-
-defineFunction(['\\Re', '\\Im'], '', null, function (name) {
-  return {
-    type: 'mop',
-    limits: 'nolimits',
-    symbol: false,
-    isFunction: true,
-    body: {
-      '\\Re': "\u211C",
-      '\\Im': "\u2111"
-    }[name],
-    baseFontFamily: 'frak'
-  };
-});
-defineSymbol('\\hbar', MAIN, MATHORD, "\u210F", COMMON); // >2,000
-
-defineSymbol('\\hslash', AMS, MATHORD, "\u210F", COMMON); // >2,000
-
-defineSymbol('\\differentialD', 'cmr', MATHORD, 'd'); // NOTE: not a real TeX symbol, but Mathematica
-
-defineSymbol('\\rd', 'cmr', MATHORD, 'd'); // NOTE: not a real TeX symbol, but used in ProofWiki
-// NOTE: set in math as per ISO 80000-2:2009.
-
-defineSymbol('\\capitalDifferentialD', 'cmr', MATHORD, 'D'); // NOTE: not a real TeX symbol, but Mathematica
-// NOTE: set in math as per ISO 80000-2:2009.
-
-defineSymbol('\\rD', 'cmr', MATHORD, 'D'); // NOTE: not a real TeX symbol
-
-defineSymbol('\\exponentialE', 'cmr', MATHORD, 'e'); // NOTE: not a real TeX symbol, but Mathematica
-// NOTE: set in math as per ISO 80000-2:2009.
-
-defineSymbol('\\Finv', AMS, MATHORD, "\u2132", 3);
-defineSymbol('\\Game', AMS, MATHORD, "\u2141", 1);
-defineSymbol('\\wp', MAIN, MATHORD, "\u2118", 1306);
-defineSymbol('\\eth', AMS, MATHORD, "\xF0", 77);
-defineSymbol('\\mho', AMS, MATHORD, "\u2127", 138);
-defineSymbol('\\Bbbk', AMS, MATHORD, "k");
-defineSymbol('\\doubleStruckCapitalN', 'bb', MATHORD, 'N'); // NOTE: Not TeX?
-
-defineSymbol('\\N', 'bb', MATHORD, 'N'); // NOTE: Check if standard Latex
-
-defineSymbol('\\doubleStruckCapitalR', 'bb', MATHORD, 'R'); // NOTE: Not TeX?
-
-defineSymbol('\\R', 'bb', MATHORD, 'R'); // NOTE: Check if standard Latex
-
-defineSymbol('\\doubleStruckCapitalQ', 'bb', MATHORD, 'Q'); // NOTE: Not TeX?
-
-defineSymbol('\\Q', 'bb', MATHORD, 'Q'); // NOTE: Check if standard Latex
-
-defineSymbol('\\doubleStruckCapitalC', 'bb', MATHORD, 'C'); // NOTE: Not TeX?
-
-defineSymbol('\\C', 'bb', MATHORD, 'C'); // NOTE: Check if standard Latex
-
-defineSymbol('\\doubleStruckCapitalZ', 'bb', MATHORD, 'Z'); // NOTE: Not TeX?
-
-defineSymbol('\\Z', 'bb', MATHORD, 'Z'); // NOTE: Check if standard Latex
-
-defineSymbol('\\doubleStruckCapitalP', 'bb', MATHORD, 'P'); // NOTE: Not TeX?
-
-defineSymbol('\\P', 'bb', MATHORD, 'P'); // NOTE: Check if standard Latex
-
-defineSymbol('\\scriptCapitalE', 'scr', MATHORD, 'E'); // NOTE: Not TeX?
-
-defineSymbol('\\scriptCapitalH', 'scr', MATHORD, 'H'); // NOTE: Not TeX?
-
-defineSymbol('\\scriptCapitalL', 'scr', MATHORD, 'L'); // NOTE: Not TeX?
-
-defineSymbol('\\gothicCapitalC', 'frak', MATHORD, 'C'); // NOTE: Not TeX?
-
-defineSymbol('\\gothicCapitalH', 'frak', MATHORD, 'H'); // NOTE: Not TeX?
-
-defineSymbol('\\gothicCapitalI', 'frak', MATHORD, 'I'); // NOTE: Not TeX?
-
-defineSymbol('\\gothicCapitalR', 'frak', MATHORD, 'R'); // NOTE: Not TeX?
-
-defineSymbol('\\pounds', MAIN, MATHORD, "\xA3", 509);
-defineSymbol('\\yen', AMS, MATHORD, "\xA5", 57);
-defineSymbol('\\euro', MAIN, MATHORD, "\u20AC", 4); // NOTE: not TeX built-in, but textcomp package
-// TODO Koppa, Stigma, Sampi
-// Math and Text
-
-category = 'Crosses';
-defineSymbol('\\textdagger', MAIN, BIN, "\u2020");
-defineSymbol('\\dagger', MAIN, BIN, "\u2020", COMMON); // >2000
-
-defineSymbol('\\dag', MAIN, BIN, "\u2020", COMMON); // >2000 results
-
-defineSymbol('\\ddag', MAIN, BIN, "\u2021", 500); // 500 results in latexsearch
-
-defineSymbol('\\textdaggerdbl', MAIN, BIN, "\u2021");
-defineSymbol('\\ddagger', MAIN, BIN, "\u2021", 353); // 353 results in latexsearch
-
-defineSymbol('\\maltese', AMS, MATHORD, "\u2720", 24); // Arrow Symbols
-
-category = 'Arrows';
-defineSymbol('\\longrightarrow', MAIN, REL, "\u27F6", SUPERCOMMON); // >2,000
-
-defineSymbol('\\rightarrow', MAIN, REL, "\u2192", SUPERCOMMON); // >2,000
-
-defineSymbol('\\Longrightarrow', MAIN, REL, "\u27F9", SUPERCOMMON); // See \\implies
-
-defineSymbol('\\Rightarrow', MAIN, REL, "\u21D2", SUPERCOMMON); // >2,000
-
-defineSymbol('\\longmapsto', MAIN, REL, "\u27FC", COMMON); // >2,000
-
-defineSymbol('\\mapsto', MAIN, REL, "\u21A6", COMMON); // >2,000
-
-defineSymbol('\\Longleftrightarrow', MAIN, REL, "\u27FA", COMMON); // >2,000
-
-defineSymbol('\\rightleftarrows', AMS, REL, "\u21C4", COMMON); // >2,000
-
-defineSymbol('\\leftarrow', MAIN, REL, "\u2190", COMMON); // >2,000
-
-defineSymbol('\\curvearrowleft', AMS, REL, "\u21B6", COMMON); // >2,000
-
-defineSymbol("\\uparrow", MAIN, REL, "\u2191", COMMON); // >2,000
-
-defineSymbol('\\downarrow', MAIN, REL, "\u2193", COMMON); // >2,000
-
-defineSymbol('\\hookrightarrow', MAIN, REL, "\u21AA", COMMON); // >2,000
-
-defineSymbol('\\rightharpoonup', MAIN, REL, "\u21C0", COMMON); // >2,000
-
-defineSymbol('\\rightleftharpoons', MAIN, REL, "\u21CC", COMMON); // >2,000
-
-defineSymbol('\\Leftarrow', MAIN, REL, "\u21D0", 1695);
-defineSymbol('\\longleftrightarrow', MAIN, REL, "\u27F7", 1599);
-defineSymbol('\\longleftarrow', MAIN, REL, "\u27F5", 878);
-defineSymbol('\\Longleftarrow', MAIN, REL, "\u27F8", 296);
-defineSymbol('\\searrow', MAIN, REL, "\u2198", 1609);
-defineSymbol('\\nearrow', MAIN, REL, "\u2197", 1301);
-defineSymbol('\\swarrow', MAIN, REL, "\u2199", 167);
-defineSymbol('\\nwarrow', MAIN, REL, "\u2196", 108);
-defineSymbol("\\Uparrow", MAIN, REL, "\u21D1", 257);
-defineSymbol('\\Downarrow', MAIN, REL, "\u21D3", 556);
-defineSymbol("\\updownarrow", MAIN, REL, "\u2195", 192);
-defineSymbol("\\Updownarrow", MAIN, REL, "\u21D5", 161);
-defineSymbol('\\hookleftarrow', MAIN, REL, "\u21A9", 115);
-defineSymbol('\\leftharpoonup', MAIN, REL, "\u21BC", 93);
-defineSymbol('\\leftharpoondown', MAIN, REL, "\u21BD", 42);
-defineSymbol('\\rightharpoondown', MAIN, REL, "\u21C1", 80);
-defineSymbol('\\leftrightarrows', AMS, REL, "\u21C6", 765);
-defineSymbol('\\dashrightarrow', AMS, REL, "\u21E2", 311);
-defineSymbol('\\dashleftarrow', AMS, REL, "\u21E0", 5);
-defineSymbol('\\leftleftarrows', AMS, REL, "\u21C7", 8);
-defineSymbol('\\Lleftarrow', AMS, REL, "\u21DA", 7);
-defineSymbol('\\twoheadleftarrow', AMS, REL, "\u219E", 32);
-defineSymbol('\\leftarrowtail', AMS, REL, "\u21A2", 25);
-defineSymbol('\\looparrowleft', AMS, REL, "\u21AB", 6);
-defineSymbol('\\leftrightharpoons', AMS, REL, "\u21CB", 205);
-defineSymbol('\\circlearrowleft', AMS, REL, "\u21BA", 105);
-defineSymbol('\\Lsh', AMS, REL, "\u21B0", 11);
-defineSymbol("\\upuparrows", AMS, REL, "\u21C8", 15);
-defineSymbol('\\downharpoonleft', AMS, REL, "\u21C3", 21);
-defineSymbol('\\multimap', AMS, REL, "\u22B8", 108);
-defineSymbol('\\leftrightsquigarrow', AMS, REL, "\u21AD", 31);
-defineSymbol('\\twoheadrightarrow', AMS, REL, "\u21A0", 835);
-defineSymbol('\\rightarrowtail', AMS, REL, "\u21A3", 195);
-defineSymbol('\\looparrowright', AMS, REL, "\u21AC", 37);
-defineSymbol('\\curvearrowright', AMS, REL, "\u21B7", 209);
-defineSymbol('\\circlearrowright', AMS, REL, "\u21BB", 63);
-defineSymbol('\\Rsh', AMS, REL, "\u21B1", 18);
-defineSymbol('\\downdownarrows', AMS, REL, "\u21CA", 6);
-defineSymbol("\\upharpoonright", AMS, REL, "\u21BE", 579);
-defineSymbol('\\downharpoonright', AMS, REL, "\u21C2", 39);
-defineSymbol('\\rightsquigarrow', AMS, REL, "\u21DD", 674);
-defineSymbol('\\leadsto', AMS, REL, "\u21DD", 709);
-defineSymbol('\\Rrightarrow', AMS, REL, "\u21DB", 62);
-defineSymbol('\\restriction', AMS, REL, "\u21BE", 29);
-defineSymbol("\\upharpoonleft", AMS, REL, "\u21BF", CRYPTIC);
-defineSymbol('\\rightrightarrows', AMS, REL, "\u21C9", CRYPTIC); // AMS Negated Arrows
-
-category = 'Negated Arrows';
-defineSymbol('\\nrightarrow', AMS, REL, "\u219B", 324);
-defineSymbol('\\nRightarrow', AMS, REL, "\u21CF", 107);
-defineSymbol('\\nleftrightarrow', AMS, REL, "\u21AE", 36);
-defineSymbol('\\nLeftrightarrow', AMS, REL, "\u21CE", 20);
-defineSymbol('\\nleftarrow', AMS, REL, "\u219A", 7);
-defineSymbol('\\nLeftarrow', AMS, REL, "\u21CD", 5); // AMS Negated Binary Relations
-
-category = 'Negated Relations';
-defineSymbol('\\nless', AMS, REL, "\u226E", 146);
-defineSymbol('\\nleqslant', AMS, REL, "\uE010", 58);
-defineSymbol('\\lneq', AMS, REL, "\u2A87", 54);
-defineSymbol('\\lneqq', AMS, REL, "\u2268", 36);
-defineSymbol('\\nleqq', AMS, REL, "\uE011", 18);
-defineSymbol("\\unlhd", AMS, BIN, "\u22B4", 253);
-defineSymbol("\\unrhd", AMS, BIN, "\u22B5", 66);
-defineSymbol('\\lvertneqq', AMS, REL, "\uE00C", 6);
-defineSymbol('\\lnsim', AMS, REL, "\u22E6", 4);
-defineSymbol('\\lnapprox', AMS, REL, "\u2A89", CRYPTIC);
-defineSymbol('\\nprec', AMS, REL, "\u2280", 71);
-defineSymbol('\\npreceq', AMS, REL, "\u22E0", 57);
-defineSymbol('\\precnsim', AMS, REL, "\u22E8", 4);
-defineSymbol('\\precnapprox', AMS, REL, "\u2AB9", 2);
-defineSymbol('\\nsim', AMS, REL, "\u2241", 40);
-defineSymbol('\\nshortmid', AMS, REL, "\uE006", 1);
-defineSymbol('\\nmid', AMS, REL, "\u2224", 417);
-defineSymbol('\\nvdash', AMS, REL, "\u22AC", 266);
-defineSymbol('\\nvDash', AMS, REL, "\u22AD", 405);
-defineSymbol('\\ngtr', AMS, REL, "\u226F", 90);
-defineSymbol('\\ngeqslant', AMS, REL, "\uE00F", 23);
-defineSymbol('\\ngeqq', AMS, REL, "\uE00E", 12);
-defineSymbol('\\gneq', AMS, REL, "\u2A88", 29);
-defineSymbol('\\gneqq', AMS, REL, "\u2269", 35);
-defineSymbol('\\gvertneqq', AMS, REL, "\uE00D", 6);
-defineSymbol('\\gnsim', AMS, REL, "\u22E7", 3);
-defineSymbol('\\gnapprox', AMS, REL, "\u2A8A", CRYPTIC);
-defineSymbol('\\nsucc', AMS, REL, "\u2281", 44);
-defineSymbol('\\nsucceq', AMS, REL, "\u22E1", CRYPTIC);
-defineSymbol('\\succnsim', AMS, REL, "\u22E9", 4);
-defineSymbol('\\succnapprox', AMS, REL, "\u2ABA", CRYPTIC);
-defineSymbol('\\ncong', AMS, REL, "\u2246", 128);
-defineSymbol('\\nshortparallel', AMS, REL, "\uE007", 6);
-defineSymbol('\\nparallel', AMS, REL, "\u2226", 54);
-defineSymbol('\\nVDash', AMS, REL, "\u22AF", 5);
-defineSymbol('\\nsupseteqq', AMS, REL, "\uE018", 1);
-defineSymbol('\\supsetneq', AMS, REL, "\u228B", 286);
-defineSymbol('\\varsupsetneq', AMS, REL, "\uE01B", 2);
-defineSymbol('\\supsetneqq', AMS, REL, "\u2ACC", 49);
-defineSymbol('\\varsupsetneqq', AMS, REL, "\uE019", 3);
-defineSymbol('\\nVdash', AMS, REL, "\u22AE", 179);
-defineSymbol('\\precneqq', AMS, REL, "\u2AB5", 11);
-defineSymbol('\\succneqq', AMS, REL, "\u2AB6", 3);
-defineSymbol('\\nsubseteqq', AMS, REL, "\uE016", 16); // AMS Misc
-
-category = 'Various';
-defineSymbol('\\checkmark', AMS, MATHORD, "\u2713", 1025);
-defineSymbol('\\diagup', AMS, MATHORD, "\u2571", 440);
-defineSymbol('\\diagdown', AMS, MATHORD, "\u2572", 175);
-defineSymbol('\\measuredangle', AMS, MATHORD, "\u2221", 271);
-defineSymbol('\\sphericalangle', AMS, MATHORD, "\u2222", 156);
-defineSymbol('\\backprime', AMS, MATHORD, "\u2035", 104);
-defineSymbol('\\backdoubleprime', AMS, MATHORD, "\u2036", CRYPTIC);
-category = 'Shapes';
-defineSymbol('\\ast', MAIN, BIN, "\u2217", SUPERCOMMON); // >2,000
-
-defineSymbol('\\star', MAIN, BIN, "\u22C6", COMMON); // >2,000
-
-defineSymbol('\\diamond', MAIN, BIN, "\u22C4", 1356);
-defineSymbol('\\Diamond', AMS, MATHORD, "\u25CA", 695);
-defineSymbol('\\lozenge', AMS, MATHORD, "\u25CA", 422);
-defineSymbol('\\blacklozenge', AMS, MATHORD, "\u29EB", 344);
-defineSymbol('\\bigstar', AMS, MATHORD, "\u2605", 168); // AMS Hebrew
-
-category = 'Hebrew';
-defineSymbol('\\aleph', MAIN, MATHORD, "\u2135", 1381);
-defineSymbol('\\beth', AMS, MATHORD, "\u2136", 54);
-defineSymbol('\\daleth', AMS, MATHORD, "\u2138", 43);
-defineSymbol('\\gimel', AMS, MATHORD, "\u2137", 36); // AMS Delimiters
-
-category = 'Fences';
-defineSymbol('\\lbrace', MAIN, OPEN, '{', SUPERCOMMON); // >2,000
-
-defineSymbol('\\rbrace', MAIN, CLOSE, '}', SUPERCOMMON); // >2,000
-
-defineSymbol('\\langle', MAIN, OPEN, "\u27E8", COMMON); // >2,000
-
-defineSymbol('\\rangle', MAIN, CLOSE, "\u27E9", COMMON);
-defineSymbol('\\lfloor', MAIN, OPEN, "\u230A", COMMON); // >2,000
-
-defineSymbol('\\rfloor', MAIN, CLOSE, "\u230B", COMMON); // >2,000
-
-defineSymbol('\\lceil', MAIN, OPEN, "\u2308", COMMON); // >2,000
-
-defineSymbol('\\rceil', MAIN, CLOSE, "\u2309", COMMON); // >2,000
-
-defineSymbol('\\vert', MAIN, MATHORD, "\u2223", SUPERCOMMON); // >2,000
-
-defineSymbol('\\mvert', MAIN, REL, "\u2223");
-defineSymbol('\\lvert', MAIN, OPEN, "\u2223", 496);
-defineSymbol('\\rvert', MAIN, CLOSE, "\u2223", 496);
-defineSymbol('\\|', MAIN, MATHORD, "\u2225");
-defineSymbol('\\Vert', MAIN, MATHORD, "\u2225", SUPERCOMMON); // >2,000
-
-defineSymbol('\\mVert', MAIN, MATHORD, "\u2225");
-defineSymbol('\\lVert', MAIN, OPEN, "\u2225", 287);
-defineSymbol('\\rVert', MAIN, CLOSE, "\u2225", CRYPTIC);
-defineSymbol('\\lbrack', MAIN, OPEN, '[', 574);
-defineSymbol('\\rbrack', MAIN, CLOSE, ']', 213);
-defineSymbol('\\{', MAIN, OPEN, '{');
-defineSymbol('\\}', MAIN, CLOSE, '}');
-defineSymbol('(', MAIN, OPEN, '(');
-defineSymbol(')', MAIN, CLOSE, ')');
-defineSymbol('[', MAIN, OPEN, '[');
-defineSymbol(']', MAIN, CLOSE, ']');
-defineSymbol("\\ulcorner", AMS, OPEN, "\u250C", 296);
-defineSymbol("\\urcorner", AMS, CLOSE, "\u2510", 310);
-defineSymbol('\\llcorner', AMS, OPEN, "\u2514", 137);
-defineSymbol('\\lrcorner', AMS, CLOSE, "\u2518", 199); // Large Delimiters
-
-defineSymbol('\\lgroup', MAIN, OPEN, "\u27EE", 24);
-defineSymbol('\\rgroup', MAIN, CLOSE, "\u27EF", 24);
-defineSymbol('\\lmoustache', MAIN, OPEN, "\u23B0", CRYPTIC);
-defineSymbol('\\rmoustache', MAIN, CLOSE, "\u23B1", CRYPTIC);
-defineFunction(['\\middle'], '{:delim}', null, function (name, args) {
-  return {
-    type: 'delim',
-    delim: args[0]
-  };
-});
-category = 'Sizing'; // Extra data needed for the delimiter parse function down below
-
-var delimiterSizes = {
-  '\\bigl': {
-    mclass: 'mopen',
-    size: 1
-  },
-  '\\Bigl': {
-    mclass: 'mopen',
-    size: 2
-  },
-  '\\biggl': {
-    mclass: 'mopen',
-    size: 3
-  },
-  '\\Biggl': {
-    mclass: 'mopen',
-    size: 4
-  },
-  '\\bigr': {
-    mclass: 'mclose',
-    size: 1
-  },
-  '\\Bigr': {
-    mclass: 'mclose',
-    size: 2
-  },
-  '\\biggr': {
-    mclass: 'mclose',
-    size: 3
-  },
-  '\\Biggr': {
-    mclass: 'mclose',
-    size: 4
-  },
-  '\\bigm': {
-    mclass: 'mrel',
-    size: 1
-  },
-  '\\Bigm': {
-    mclass: 'mrel',
-    size: 2
-  },
-  '\\biggm': {
-    mclass: 'mrel',
-    size: 3
-  },
-  '\\Biggm': {
-    mclass: 'mrel',
-    size: 4
-  },
-  '\\big': {
-    mclass: 'mord',
-    size: 1
-  },
-  '\\Big': {
-    mclass: 'mord',
-    size: 2
-  },
-  '\\bigg': {
-    mclass: 'mord',
-    size: 3
-  },
-  '\\Bigg': {
-    mclass: 'mord',
-    size: 4
-  }
-};
-defineFunction(['\\bigl', '\\Bigl', '\\biggl', '\\Biggl', '\\bigr', '\\Bigr', '\\biggr', '\\Biggr', '\\bigm', '\\Bigm', '\\biggm', '\\Biggm', '\\big', '\\Big', '\\bigg', '\\Bigg'], '{:delim}', null, function (name, args) {
-  return {
-    type: 'sizeddelim',
-    size: delimiterSizes[name].size,
-    cls: delimiterSizes[name].mclass,
-    delim: args[0]
-  };
-}); // Relations
-
-category = 'Relations';
-defineSymbol('=', MAIN, REL, '=', SUPERCOMMON);
-defineSymbol('\\ne', MAIN, REL, "\u2260", SUPERCOMMON); // >2,000
-
-defineSymbol('\\neq', MAIN, REL, "\u2260", COMMON); // >2,000
-// defineSymbol( '\\longequal',  MAIN,  REL, '\uF7D9');   // NOTE: Not TeXematica
-
-defineSymbol('<', MAIN, REL, '<', SUPERCOMMON); // >2,000
-
-defineSymbol('\\lt', MAIN, REL, '<', COMMON); // >2,000
-
-defineSymbol('>', MAIN, REL, '>', SUPERCOMMON); // >2,000
-
-defineSymbol('\\gt', MAIN, REL, '>', COMMON); // >2,000
-
-defineSymbol('\\le', MAIN, REL, "\u2264", COMMON); // >2,000
-
-defineSymbol('\\ge', MAIN, REL, "\u2265", COMMON); // >2,000
-
-defineSymbol('\\leqslant', AMS, REL, "\u2A7D", SUPERCOMMON); // > 2,000
-
-defineSymbol('\\geqslant', AMS, REL, "\u2A7E", SUPERCOMMON); // > 2,000
-
-defineSymbol('\\leq', MAIN, REL, "\u2264", COMMON); // >2,000
-
-defineSymbol('\\geq', MAIN, REL, "\u2265", COMMON); // >2,000
-
-defineSymbol('\\ll', MAIN, REL, "\u226A");
-defineSymbol('\\gg', MAIN, REL, "\u226B", COMMON); // >2,000
-
-defineSymbol('\\coloneq', MAIN, REL, "\u2254", 5);
-defineSymbol('\\measeq', MAIN, REL, "\u225D"); // MEASSURED BY
-
-defineSymbol('\\eqdef', MAIN, REL, "\u225E");
-defineSymbol('\\questeq', MAIN, REL, "\u225F"); // QUESTIONED EQUAL TO
-
-defineSymbol(':', MAIN, REL, ':');
-defineSymbol('\\cong', MAIN, REL, "\u2245", COMMON); // >2,000
-
-defineSymbol('\\equiv', MAIN, REL, "\u2261", COMMON); // >2,000
-
-defineSymbol('\\prec', MAIN, REL, "\u227A", COMMON); // >2,000
-
-defineSymbol('\\preceq', MAIN, REL, "\u2AAF", COMMON); // >2,000
-
-defineSymbol('\\succ', MAIN, REL, "\u227B", COMMON); // >2,000
-
-defineSymbol('\\succeq', MAIN, REL, "\u2AB0", 1916);
-defineSymbol('\\perp', MAIN, REL, "\u22A5", COMMON); // > 2,000
-
-defineSymbol('\\parallel', MAIN, REL, "\u2225", COMMON); // >2,000
-
-defineSymbol('\\propto', MAIN, REL, "\u221D", COMMON); // > 2,000
-
-defineSymbol('\\Colon', MAIN, REL, "\u2237");
-defineSymbol('\\smile', MAIN, REL, "\u2323", COMMON); // > 2,000
-
-defineSymbol('\\frown', MAIN, REL, "\u2322", COMMON); // > 2,000
-
-defineSymbol('\\sim', MAIN, REL, "\u223C", COMMON); // >2,000
-
-defineSymbol('\\gtrsim', AMS, REL, "\u2273", COMMON); // >2,000
-
-defineSymbol('\\approx', MAIN, REL, "\u2248", SUPERCOMMON); // >2,000
-
-defineSymbol('\\approxeq', AMS, REL, "\u224A", 147);
-defineSymbol('\\thickapprox', AMS, REL, "\u2248", 377);
-defineSymbol('\\lessapprox', AMS, REL, "\u2A85", 146);
-defineSymbol('\\gtrapprox', AMS, REL, "\u2A86", 95);
-defineSymbol('\\precapprox', AMS, REL, "\u2AB7", 50);
-defineSymbol('\\succapprox', AMS, REL, "\u2AB8", CRYPTIC);
-defineSymbol('\\thicksim', AMS, REL, "\u223C", 779);
-defineSymbol('\\succsim', AMS, REL, "\u227F", 251);
-defineSymbol('\\precsim', AMS, REL, "\u227E", 104);
-defineSymbol('\\backsim', AMS, REL, "\u223D", 251);
-defineSymbol('\\eqsim', AMS, REL, "\u2242", 62);
-defineSymbol('\\backsimeq', AMS, REL, "\u22CD", 91);
-defineSymbol('\\simeq', MAIN, REL, "\u2243", CRYPTIC);
-defineSymbol('\\lesssim', AMS, REL, "\u2272", CRYPTIC);
-defineSymbol('\\nleq', AMS, REL, "\u2270", 369);
-defineSymbol('\\ngeq', AMS, REL, "\u2271", 164);
-defineSymbol('\\smallsmile', AMS, REL, "\u2323", 31);
-defineSymbol('\\smallfrown', AMS, REL, "\u2322", 71);
-defineSymbol('\\bowtie', MAIN, REL, "\u22C8", 558);
-defineSymbol('\\asymp', MAIN, REL, "\u224D", 755);
-defineSymbol('\\sqsubseteq', MAIN, REL, "\u2291", 1255);
-defineSymbol('\\sqsupseteq', MAIN, REL, "\u2292", 183);
-defineSymbol('\\leqq', AMS, REL, "\u2266", 1356);
-defineSymbol('\\eqslantless', AMS, REL, "\u2A95", 15);
-defineSymbol('\\lll', AMS, REL, "\u22D8", 157);
-defineSymbol('\\lessgtr', AMS, REL, "\u2276", 281);
-defineSymbol('\\lesseqgtr', AMS, REL, "\u22DA", 134);
-defineSymbol('\\lesseqqgtr', AMS, REL, "\u2A8B", CRYPTIC);
-defineSymbol('\\risingdotseq', AMS, REL, "\u2253", 8);
-defineSymbol('\\fallingdotseq', AMS, REL, "\u2252", 99);
-defineSymbol('\\subseteqq', AMS, REL, "\u2AC5", 82);
-defineSymbol('\\Subset', AMS, REL, "\u22D0");
-defineSymbol('\\sqsubset', AMS, REL, "\u228F", 309);
-defineSymbol('\\preccurlyeq', AMS, REL, "\u227C", 549);
-defineSymbol('\\curlyeqprec', AMS, REL, "\u22DE", 14);
-defineSymbol('\\vDash', AMS, REL, "\u22A8", 646);
-defineSymbol('\\Vvdash', AMS, REL, "\u22AA", 20);
-defineSymbol('\\bumpeq', AMS, REL, "\u224F", 13);
-defineSymbol('\\Bumpeq', AMS, REL, "\u224E", 12);
-defineSymbol('\\geqq', AMS, REL, "\u2267", 972);
-defineSymbol('\\eqslantgtr', AMS, REL, "\u2A96", 13);
-defineSymbol('\\ggg', AMS, REL, "\u22D9", 127);
-defineSymbol('\\gtrless', AMS, REL, "\u2277", 417);
-defineSymbol('\\gtreqless', AMS, REL, "\u22DB", 190);
-defineSymbol('\\gtreqqless', AMS, REL, "\u2A8C", 91);
-defineSymbol('\\supseteqq', AMS, REL, "\u2AC6", 6);
-defineSymbol('\\Supset', AMS, REL, "\u22D1", 34);
-defineSymbol('\\sqsupset', AMS, REL, "\u2290", 71);
-defineSymbol('\\succcurlyeq', AMS, REL, "\u227D", 442);
-defineSymbol('\\curlyeqsucc', AMS, REL, "\u22DF", 10);
-defineSymbol('\\Vdash', AMS, REL, "\u22A9", 276);
-defineSymbol('\\shortmid', AMS, REL, "\u2223", 67);
-defineSymbol('\\shortparallel', AMS, REL, "\u2225", 17);
-defineSymbol('\\between', AMS, REL, "\u226C", 110);
-defineSymbol('\\pitchfork', AMS, REL, "\u22D4", 66);
-defineSymbol('\\varpropto', AMS, REL, "\u221D", 203);
-defineSymbol('\\backepsilon', AMS, REL, "\u220D", 176);
-defineSymbol('\\llless', AMS, REL, "\u22D8", CRYPTIC);
-defineSymbol('\\gggtr', AMS, REL, "\u22D9", CRYPTIC);
-defineSymbol('\\lhd', AMS, BIN, "\u22B2", 447);
-defineSymbol('\\rhd', AMS, BIN, "\u22B3", 338);
-defineSymbol('\\Join', MAIN, REL, "\u22C8", 35);
-defineSymbol('\\doteq', MAIN, REL, "\u2250", 1450);
-defineSymbol('\\doteqdot', AMS, REL, "\u2251", 60);
-defineSymbol('\\Doteq', AMS, REL, "\u2251", CRYPTIC);
-defineSymbol('\\eqcirc', AMS, REL, "\u2256", 6);
-defineSymbol('\\circeq', AMS, REL, "\u2257", 31);
-defineSymbol('\\lessdot', AMS, BIN, "\u22D6", 88);
-defineSymbol('\\gtrdot', AMS, BIN, "\u22D7", 45); // In TeX, '~' is a spacing command (non-breaking space).
-// However, '~' is used as an ASCII Math shortctut character, so define a \\~
-// command which maps to the '~' character
-
-defineSymbol('\\~', MAIN, REL, '~');
-category = 'Logic';
-defineSymbol('\\leftrightarrow', MAIN, REL, "\u2194", SUPERCOMMON); // >2,000
-
-defineSymbol('\\Leftrightarrow', MAIN, REL, "\u21D4", SUPERCOMMON); // >2,000
-// defineSymbol( '\\iff',  MAIN,  REL, '\\;\u27fa\\;', SUPERCOMMON);        // >2,000 Note: additional spaces around the arrows
-
-defineSymbol('\\to', MAIN, REL, "\u2192", SUPERCOMMON); // >2,000
-
-defineSymbol('\\models', MAIN, REL, "\u22A8", COMMON); // >2,000
-
-defineSymbol('\\vdash', MAIN, REL, "\u22A2", COMMON); // >2,000
-
-defineSymbol('\\therefore', AMS, REL, "\u2234", 1129);
-defineSymbol('\\because', AMS, REL, "\u2235", 388);
-defineSymbol('\\implies', MAIN, REL, "\u27F9", 1858);
-defineSymbol('\\gets', MAIN, REL, "\u2190", 150);
-defineSymbol('\\dashv', MAIN, REL, "\u22A3", 299);
-defineSymbol('\\impliedby', MAIN, REL, "\u27F8", CRYPTIC);
-defineSymbol('\\biconditional', MAIN, REL, "\u27F7", CRYPTIC);
-defineSymbol('\\roundimplies', MAIN, REL, "\u2970", CRYPTIC); // AMS Binary Operators
-
-category = 'Operators';
-defineSymbol('+', MAIN, BIN, '+', SUPERCOMMON); // > 2,000
-
-defineSymbol('-', MAIN, BIN, "\u2212", SUPERCOMMON); // > 2,000
-
-defineSymbol("\u2212", MAIN, BIN, "\u2212", SUPERCOMMON); // > 2,000
-
-defineSymbol('\\pm', MAIN, BIN, "\xB1", COMMON); // > 2,000
-
-defineSymbol('\\mp', MAIN, BIN, "\u2213", COMMON); // > 2,000
-
-defineSymbol('*', MAIN, BIN, "\u2217", COMMON); // > 2,000
-
-defineSymbol('\\times', MAIN, BIN, "\xD7", COMMON); // > 2,000
-
-defineSymbol('\\div', MAIN, BIN, "\xF7", COMMON); // > 2,000
-
-defineSymbol('\\surd', MAIN, MATHORD, "\u221A", COMMON); // > 2,000
-
-defineSymbol('\\divides', MAIN, BIN, "\u2223", CRYPTIC); // From MnSymbol package
-
-defineSymbol('\\ltimes', AMS, BIN, "\u22C9", 576);
-defineSymbol('\\rtimes', AMS, BIN, "\u22CA", 946);
-defineSymbol('\\leftthreetimes', AMS, BIN, "\u22CB", 34);
-defineSymbol('\\rightthreetimes', AMS, BIN, "\u22CC", 14);
-defineSymbol('\\intercal', AMS, BIN, "\u22BA", 478);
-defineSymbol('\\dotplus', AMS, BIN, "\u2214", 81);
-defineSymbol('\\centerdot', AMS, BIN, "\u22C5", 271);
-defineSymbol('\\doublebarwedge', AMS, BIN, "\u2A5E", 5);
-defineSymbol('\\divideontimes', AMS, BIN, "\u22C7", 51);
-defineSymbol('\\cdot', MAIN, BIN, "\u22C5", CRYPTIC);
-category = 'Others';
-defineSymbol('\\infty', MAIN, MATHORD, "\u221E", SUPERCOMMON); // >2,000
-
-defineSymbol('\\prime', MAIN, ORD, "\u2032", SUPERCOMMON); // >2,000
-
-defineSymbol('\\doubleprime', MAIN, MATHORD, "\u2033"); // NOTE: Not in TeX, but Mathematica
-
-defineSymbol('\\angle', MAIN, MATHORD, "\u2220", COMMON); // >2,000
-
-defineSymbol('`', MAIN, MATHORD, "\u2018");
-defineSymbol('\\$', MAIN, MATHORD, '$');
-defineSymbol('\\%', MAIN, MATHORD, '%');
-defineSymbol('\\_', MAIN, MATHORD, '_');
-category = 'Greek'; // Note: In TeX, greek symbols are only available in Math mode
-
-defineSymbol('\\alpha', MAIN, ORD, "\u03B1", COMMON); // >2,000
-
-defineSymbol('\\beta', MAIN, ORD, "\u03B2", COMMON); // >2,000
-
-defineSymbol('\\gamma', MAIN, ORD, "\u03B3", COMMON); // >2,000
-
-defineSymbol('\\delta', MAIN, ORD, "\u03B4", COMMON); // >2,000
-
-defineSymbol('\\epsilon', MAIN, ORD, "\u03F5", COMMON); // >2,000
-
-defineSymbol('\\varepsilon', MAIN, ORD, "\u03B5");
-defineSymbol('\\zeta', MAIN, ORD, "\u03B6", COMMON); // >2,000
-
-defineSymbol('\\eta', MAIN, ORD, "\u03B7", COMMON); // >2,000
-
-defineSymbol('\\theta', MAIN, ORD, "\u03B8", COMMON); // >2,000
-
-defineSymbol('\\vartheta', MAIN, ORD, "\u03D1", COMMON); // >2,000
-
-defineSymbol('\\iota', MAIN, ORD, "\u03B9", COMMON); // >2,000
-
-defineSymbol('\\kappa', MAIN, ORD, "\u03BA", COMMON); // >2,000
-
-defineSymbol('\\varkappa', AMS, ORD, "\u03F0", COMMON); // >2,000
-
-defineSymbol('\\lambda', MAIN, ORD, "\u03BB", COMMON); // >2,000
-
-defineSymbol('\\mu', MAIN, ORD, "\u03BC", COMMON); // >2,000
-
-defineSymbol('\\nu', MAIN, ORD, "\u03BD", COMMON); // >2,000
-
-defineSymbol('\\xi', MAIN, ORD, "\u03BE", COMMON); // >2,000
-
-defineSymbol('\\omicron', MAIN, ORD, 'o');
-defineSymbol('\\pi', MAIN, ORD, "\u03C0", COMMON); // >2,000
-
-defineSymbol('\\varpi', MAIN, ORD, "\u03D6", COMMON); // >2,000
-
-defineSymbol('\\rho', MAIN, ORD, "\u03C1", COMMON); // >2,000
-
-defineSymbol('\\varrho', MAIN, ORD, "\u03F1", COMMON); // >2,000
-
-defineSymbol('\\sigma', MAIN, ORD, "\u03C3", COMMON); // >2,000
-
-defineSymbol('\\varsigma', MAIN, ORD, "\u03C2", COMMON); // >2,000
-
-defineSymbol('\\tau', MAIN, ORD, "\u03C4", COMMON); // >2,000
-
-defineSymbol('\\phi', MAIN, ORD, "\u03D5", COMMON); // >2,000
-
-defineSymbol('\\varphi', MAIN, ORD, "\u03C6", COMMON); // >2,000
-
-defineSymbol("\\upsilon", MAIN, ORD, "\u03C5", COMMON); // >2,000
-
-defineSymbol('\\chi', MAIN, ORD, "\u03C7", COMMON); // >2,000
-
-defineSymbol('\\psi', MAIN, ORD, "\u03C8", COMMON); // >2,000
-
-defineSymbol('\\omega', MAIN, ORD, "\u03C9", COMMON); // >2,000
-
-defineSymbol('\\Gamma', MAIN, ORD, "\u0393", COMMON); // >2,000
-
-defineSymbol('\\Delta', MAIN, ORD, "\u0394", COMMON); // >2,000
-
-defineSymbol('\\Theta', MAIN, ORD, "\u0398", COMMON); // >2,000
-
-defineSymbol('\\Lambda', MAIN, ORD, "\u039B", COMMON); // >2,000
-
-defineSymbol('\\Xi', MAIN, ORD, "\u039E", COMMON); // >2,000
-
-defineSymbol('\\Pi', MAIN, ORD, "\u03A0", COMMON); // >2,000
-
-defineSymbol('\\Sigma', MAIN, ORD, "\u03A3", COMMON); // >2,000
-
-defineSymbol("\\Upsilon", MAIN, ORD, "\u03A5", COMMON); // >2,000
-
-defineSymbol('\\Phi', MAIN, ORD, "\u03A6", COMMON); // >2,000
-
-defineSymbol('\\Psi', MAIN, ORD, "\u03A8", COMMON); // >2,000
-
-defineSymbol('\\Omega', MAIN, ORD, "\u03A9", COMMON); // >2,000
-// AMS Greek
-
-defineSymbol('\\digamma', AMS, ORD, "\u03DD", 248);
-category = 'Others';
-defineSymbol('\\emptyset', MAIN, MATHORD, "\u2205", SUPERCOMMON); // >2,000
-
-defineSymbol('\\varnothing', AMS, MATHORD, "\u2205", SUPERCOMMON); // >2,000
-
-category = 'Set Operators';
-defineSymbol('\\cap', MAIN, BIN, "\u2229", SUPERCOMMON);
-defineSymbol('\\cup', MAIN, BIN, "\u222A", SUPERCOMMON);
-defineSymbol('\\setminus', MAIN, BIN, "\u2216", COMMON); // >2,000
-
-defineSymbol('\\smallsetminus', AMS, BIN, "\u2216", 254);
-defineSymbol('\\complement', AMS, MATHORD, "\u2201", 200);
-category = 'Set Relations';
-defineSymbol('\\in', MAIN, REL, "\u2208", SUPERCOMMON); // >2,000
-
-defineSymbol('\\notin', MAIN, REL, "\u2209", SUPERCOMMON); // >2,000
-
-defineSymbol('\\not', MAIN, REL, "\u0338", COMMON);
-defineSymbol('\\ni', MAIN, REL, "\u220B", COMMON); // >2,000
-
-defineSymbol('\\owns', MAIN, REL, "\u220B", 18);
-defineSymbol('\\subset', MAIN, REL, "\u2282", SUPERCOMMON); // >2,000
-
-defineSymbol('\\supset', MAIN, REL, "\u2283", SUPERCOMMON); // >2,000
-
-defineSymbol('\\subseteq', MAIN, REL, "\u2286", SUPERCOMMON); // >2,000
-
-defineSymbol('\\supseteq', MAIN, REL, "\u2287", SUPERCOMMON); // >2,000
-
-defineSymbol('\\subsetneq', AMS, REL, "\u228A", 1945);
-defineSymbol('\\varsubsetneq', AMS, REL, "\uE01A", 198);
-defineSymbol('\\subsetneqq', AMS, REL, "\u2ACB", 314);
-defineSymbol('\\varsubsetneqq', AMS, REL, "\uE017", 55);
-defineSymbol('\\nsubset', AMS, REL, "\u2284", CRYPTIC); // NOTE: Not TeX?
-
-defineSymbol('\\nsupset', AMS, REL, "\u2285", CRYPTIC); // NOTE: Not TeX?
-
-defineSymbol('\\nsubseteq', AMS, REL, "\u2288", 950);
-defineSymbol('\\nsupseteq', AMS, REL, "\u2289", 49);
-category = 'Spacing'; // See http://tex.stackexchange.com/questions/41476/lengths-and-when-to-use-them
-
-defineSymbol('\\ ', MAIN, SPACING, "\xA0");
-defineSymbol('~', MAIN, SPACING, "\xA0");
-defineSymbol('\\space', MAIN, SPACING, "\xA0");
-defineSymbol('\\!', MAIN, SPACING, null);
-defineSymbol('\\,', MAIN, SPACING, null);
-defineSymbol('\\:', MAIN, SPACING, null);
-defineSymbol('\\;', MAIN, SPACING, null);
-defineSymbol('\\enskip', MAIN, SPACING, null); // \enspace is a TeX command (not LaTeX) equivalent to a \skip
-
-defineSymbol('\\enspace', MAIN, SPACING, null, 672);
-defineSymbol('\\quad', MAIN, SPACING, null, COMMON); // >2,000
-
-defineSymbol('\\qquad', MAIN, SPACING, null, COMMON); // >2,000
-
-defineFunction(['\\hspace', '\\hspace*' // \hspace* inserts a non-breakable space, but since we don't line break...
-// it's the same as \hspace.
-], '{width:skip}', {
-  allowedInText: true
-}, function (_name, args) {
-  return {
-    type: 'spacing',
-    width: args[0] || 0
-  };
-});
-/**
- * If possible, i.e. if they are all simple atoms, return a string made up of
- * their body
- * @param {object[]} atoms
- */
-
-function getSimpleString(atoms) {
-  var result = '';
-  var success = true;
-  var _iteratorNormalCompletion7 = true;
-  var _didIteratorError7 = false;
-  var _iteratorError7 = undefined;
-
-  try {
-    for (var _iterator7 = atoms[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
-      var atom = _step7.value;
-
-      if (typeof atom.body === 'string') {
-        result += atom.body;
-      } else {
-        success = false;
-      }
-    }
-  } catch (err) {
-    _didIteratorError7 = true;
-    _iteratorError7 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
-        _iterator7.return();
-      }
-    } finally {
-      if (_didIteratorError7) {
-        throw _iteratorError7;
-      }
-    }
-  }
-
-  return success ? result : '';
-}
-
-defineFunction(['\\mathop', '\\mathbin', '\\mathrel', '\\mathopen', '\\mathclose', '\\mathpunct', '\\mathord', '\\mathinner'], '{:auto}', null, function (name, args) {
-  var result = {
-    type: {
-      '\\mathop': 'mop',
-      '\\mathbin': 'mbin',
-      '\\mathrel': 'mrel',
-      '\\mathopen': 'mopen',
-      '\\mathclose': 'mclose',
-      '\\mathpunct': 'mpunct',
-      '\\mathord': 'mord',
-      '\\mathinner': 'minner'
-    }[name],
-    body: getSimpleString(args[0]) || args[0],
-    captureSelection: true,
-    // Do not let children be selected
-    baseFontFamily: name === '\\mathop' ? 'math' : ''
-  };
-
-  if (name === '\\mathop') {
-    result.limits = 'nolimits';
-    result.isFunction = true;
-  }
-
-  return result;
-});
-defineFunction(['\\operatorname', '\\operatorname*'], '{operator:string}', null, function (name, args) {
-  var result = {
-    type: 'mop',
-    skipBoundary: true,
-    body: args[0],
-    isFunction: true,
-    baseFontFamily: 'cmr'
-  };
-
-  if (name === '\\operatorname') {
-    result.limits = 'nolimits';
-  } else if (name === '\\operatorname*') {
-    result.limits = 'limits';
-  }
-
-  return result;
-}); // Punctuation
-
-category = 'Punctuation';
-defineSymbol('\\colon', MAIN, PUNCT, ':', COMMON); // >2,000
-
-defineSymbol('\\cdotp', MAIN, PUNCT, "\u22C5", COMMON); // >2,000
-
-defineSymbol('\\ldots', MAIN, INNER, "\u2026", COMMON); // >2,000
-
-defineSymbol('\\cdots', MAIN, INNER, "\u22EF", COMMON); // >2,000
-
-defineSymbol('\\ddots', MAIN, INNER, "\u22F1", COMMON); // >2,000
-
-defineSymbol('\\mathellipsis', MAIN, INNER, "\u2026", 91);
-defineSymbol('\\vdots', MAIN, MATHORD, "\u22EE", COMMON); // >2,000
-
-defineSymbol('\\ldotp', MAIN, PUNCT, ".", 18);
-defineSymbol(',', MAIN, PUNCT, ',');
-defineSymbol(';', MAIN, PUNCT, ';');
-category = 'Logical Operators';
-defineSymbol('\\wedge', MAIN, BIN, "\u2227", SUPERCOMMON); // >2,000
-
-defineSymbol('\\vee', MAIN, BIN, "\u2228", SUPERCOMMON); // >2,000
-
-defineSymbol('\\lnot', MAIN, MATHORD, "\xAC", COMMON); // >2,000
-
-defineSymbol('\\neg', MAIN, MATHORD, "\xAC", SUPERCOMMON); // >2,000
-
-defineSymbol('\\land', MAIN, BIN, "\u2227", 659);
-defineSymbol('\\lor', MAIN, BIN, "\u2228", 364);
-defineSymbol('\\barwedge', AMS, BIN, "\u22BC", 21);
-defineSymbol('\\veebar', AMS, BIN, "\u22BB", 43);
-defineSymbol('\\nor', AMS, BIN, "\u22BB", 7); // NOTE: Not TeXematica
-
-defineSymbol('\\curlywedge', AMS, BIN, "\u22CF", 58);
-defineSymbol('\\curlyvee', AMS, BIN, "\u22CE", 57);
-category = 'Boxes';
-defineSymbol('\\square', AMS, MATHORD, "\u25A1", COMMON); // >2,000
-
-defineSymbol('\\Box', AMS, MATHORD, "\u25A1", COMMON); // >2,000
-
-defineSymbol('\\blacksquare', AMS, MATHORD, "\u25A0", 1679);
-defineSymbol('\\boxminus', AMS, BIN, "\u229F", 79);
-defineSymbol('\\boxplus', AMS, BIN, "\u229E", 276);
-defineSymbol('\\boxtimes', AMS, BIN, "\u22A0", 457);
-defineSymbol('\\boxdot', AMS, BIN, "\u22A1", 120);
-category = 'Circles';
-defineSymbol('\\circ', MAIN, BIN, "\u2218", SUPERCOMMON); // >2,000
-
-defineSymbol('\\bigcirc', MAIN, BIN, "\u25EF", 903);
-defineSymbol('\\bullet', MAIN, BIN, "\u2219", COMMON); // >2,000
-
-defineSymbol('\\circleddash', AMS, BIN, "\u229D", COMMON); // >2,000
-
-defineSymbol('\\circledast', AMS, BIN, "\u229B", 339);
-defineSymbol('\\oplus', MAIN, BIN, "\u2295", COMMON); // >2,000
-
-defineSymbol('\\ominus', MAIN, BIN, "\u2296", 1568);
-defineSymbol('\\otimes', MAIN, BIN, "\u2297", COMMON); // >2,000
-
-defineSymbol('\\odot', MAIN, BIN, "\u2299", COMMON); // >2,000
-
-defineSymbol('\\circledcirc', AMS, BIN, "\u229A", 93);
-defineSymbol('\\oslash', MAIN, BIN, "\u2298", 497);
-defineSymbol('\\circledS', AMS, MATHORD, "\u24C8", 31);
-defineSymbol('\\circledR', AMS, MATHORD, "\xAE", 1329);
-category = 'Triangles';
-defineSymbol('\\triangle', MAIN, MATHORD, "\u25B3", COMMON); // > 2,000
-
-defineSymbol('\\triangleq', AMS, REL, "\u225C", COMMON); // >2,000
-
-defineSymbol('\\bigtriangleup', MAIN, BIN, "\u25B3", 1773);
-defineSymbol('\\vartriangle', AMS, REL, "\u25B3", 762);
-defineSymbol('\\triangledown', AMS, MATHORD, "\u25BD", 520);
-defineSymbol('\\bigtriangledown', MAIN, BIN, "\u25BD", 661);
-defineSymbol('\\triangleleft', MAIN, BIN, "\u25C3", 534);
-defineSymbol('\\vartriangleleft', AMS, REL, "\u22B2", 281);
-defineSymbol('\\trianglelefteq', AMS, REL, "\u22B4", 176);
-defineSymbol('\\ntriangleleft', AMS, REL, "\u22EA", 13);
-defineSymbol('\\ntrianglelefteq', AMS, REL, "\u22EC", 22);
-defineSymbol('\\triangleright', MAIN, BIN, "\u25B9", 516);
-defineSymbol('\\vartriangleright', AMS, REL, "\u22B3", 209);
-defineSymbol('\\trianglerighteq', AMS, REL, "\u22B5", 45);
-defineSymbol('\\ntriangleright', AMS, REL, "\u22EB", 15);
-defineSymbol('\\ntrianglerighteq', AMS, REL, "\u22ED", 6);
-defineSymbol('\\blacktriangle', AMS, MATHORD, "\u25B2", 360);
-defineSymbol('\\blacktriangledown', AMS, MATHORD, "\u25BC", 159);
-defineSymbol('\\blacktriangleleft', AMS, REL, "\u25C0", 101);
-defineSymbol('\\blacktriangleright', AMS, REL, "\u25B6", 271);
-category = 'Others';
-defineSymbol('\\/', MAIN, ORD, '/');
-defineSymbol('|', MAIN, 'textord', "\u2223");
-category = 'Big Operators';
-defineSymbol('\\sqcup', MAIN, BIN, "\u2294", 1717); // 63
-
-defineSymbol('\\sqcap', MAIN, BIN, "\u2293", 735); // 38
-
-defineSymbol("\\uplus", MAIN, BIN, "\u228E", 597);
-defineSymbol('\\wr', MAIN, BIN, "\u2240", 286);
-defineSymbol('\\Cap', AMS, BIN, "\u22D2", 2);
-defineSymbol('\\Cup', AMS, BIN, "\u22D3", 2);
-defineSymbol('\\doublecap', AMS, BIN, "\u22D2", 1);
-defineSymbol('\\doublecup', AMS, BIN, "\u22D3", 1);
-defineSymbol('\\amalg', MAIN, BIN, "\u2A3F", CRYPTIC);
-defineSymbol('\\And', MAIN, BIN, "&");
-category = 'Accents'; // defineSymbol( '\\bar',  MAIN,  ACCENT, '\u00af', COMMON);    // >2,000
-// defineSymbol( '\\vec',  MAIN,  ACCENT, '\u20d7');
-// defineSymbol( '\\hat',  MAIN,  ACCENT, '\u005e');
-// defineSymbol( '\\dot',  MAIN,  ACCENT, '\u02d9');
-// defineSymbol( '\\ddot',  MAIN,  ACCENT, '\u00a8', COMMON);    // >2,000
-// defineSymbol( '\\acute',  MAIN,  ACCENT, '\u00b4', COMMON);    // >2,000
-// defineSymbol( '\\tilde',  MAIN,  ACCENT, '\u007e', COMMON);    // >2,000
-// defineSymbol( '\\check',  MAIN,  ACCENT, '\u02c7', COMMON);    // >2,000
-// defineSymbol( '\\breve',  MAIN,  ACCENT, '\u02d8', 1548);
-// defineSymbol( '\\grave',  MAIN,  ACCENT, '\u0060', 735);
-
-defineFunction(['\\acute', '\\grave', '\\dot', '\\ddot', '\\mathring', '\\tilde', '\\bar', '\\breve', '\\check', '\\hat', '\\vec'], '{body:auto}', null, function (name, args) {
-  return {
-    type: 'accent',
-    accent: {
-      '\\acute': "\u02CA",
-      '\\grave': "\u02CB",
-      '\\dot': "\u02D9",
-      '\\ddot': "\xA8",
-      '\\mathring': "\u02DA",
-      '\\tilde': "~",
-      '\\bar': "\u02C9",
-      '\\breve': "\u02D8",
-      '\\check': "\u02C7",
-      '\\hat': "^",
-      '\\vec': "\u20D7"
-    }[name],
-    limits: 'accent',
-    // This will suppress the regular
-    // supsub attachment and will delegate
-    // it to the decomposeAccent
-    // (any non-null value would do)
-    skipBoundary: true,
-    body: args[0]
-  };
-});
-frequency(COMMON, '\\bar', '\\ddot', '\\acute', '\\tilde', '\\check');
-frequency(1548, '\\breve');
-frequency(735, '\\grave');
-frequency(SUPERCOMMON, '\\vec'); // note('\\( \\bar{x}\\): Average of the values \\( (x_1,\\ldots ,x_n) \\)');
-
-category = 'Letters and Letter Like Forms';
-defineSymbol('\\imath', MAIN, MATHORD, "\u0131");
-defineSymbol('\\jmath', MAIN, MATHORD, "\u0237");
-category = 'Others';
-defineSymbol('\\degree', MAIN, MATHORD, "\xB0", 46);
-category = 'Others';
-defineSymbol("'", MAIN, MATHORD, "\u2032"); // Prime
-
-defineSymbol('"', MAIN, MATHORD, "\u201D"); // Double Prime
-// defineSymbol( "\'',  MAIN,  MATHORD, '\u2033');       // Double Prime
-// From plain.tex
-
-category = 'Others';
-defineFunction('\\^', '{:string}', {
-  allowedInText: true
-}, function (name, args) {
-  return {
-    type: 'mord',
-    limits: 'nolimits',
-    symbol: true,
-    isFunction: false,
-    body: args[0] ? {
-      'a': 'â',
-      'e': 'ê',
-      'i': 'î',
-      'o': 'ô',
-      'u': 'û',
-      'A': 'Â',
-      'E': 'Ê',
-      'I': 'Î',
-      'O': 'Ô',
-      'U': 'Û'
-    }[args[0]] || '^' : '^',
-    baseFontFamily: 'cmr'
-  };
-});
-defineFunction("\\`", '{:string}', {
-  allowedInText: true
-}, function (name, args) {
-  return {
-    type: 'mord',
-    limits: 'nolimits',
-    symbol: true,
-    isFunction: false,
-    body: args[0] ? {
-      'a': 'à',
-      'e': 'è',
-      'i': 'ì',
-      'o': 'ò',
-      'u': 'ù',
-      'A': 'À',
-      'E': 'È',
-      'I': 'Ì',
-      'O': 'Ò',
-      'U': 'Ù'
-    }[args[0]] || '`' : '`',
-    baseFontFamily: 'cmr'
-  };
-});
-defineFunction("\\'", '{:string}', {
-  allowedInText: true
-}, function (name, args) {
-  return {
-    type: 'mord',
-    limits: 'nolimits',
-    symbol: true,
-    isFunction: false,
-    body: args[0] ? {
-      'a': 'á',
-      'e': 'é',
-      'i': 'í',
-      'o': 'ó',
-      'u': 'ú',
-      'A': 'Á',
-      'E': 'É',
-      'I': 'Í',
-      'O': 'Ó',
-      'U': 'Ú'
-    }[args[0]] || "^" : "^",
-    baseFontFamily: 'cmr'
-  };
-});
-defineFunction('\\~', '{:string}', {
-  allowedInText: true
-}, function (name, args) {
-  return {
-    type: 'mord',
-    limits: 'nolimits',
-    symbol: true,
-    isFunction: false,
-    body: args[0] ? {
-      'n': 'ñ',
-      'N': 'Ñ',
-      'a': 'ã',
-      'o': 'õ',
-      'A': 'Ã',
-      'O': 'Õ'
-    }[args[0]] || "\xB4" : "\xB4",
-    baseFontFamily: 'cmr'
-  };
-});
-defineFunction('\\c', '{:string}', {
-  allowedInText: true
-}, function (name, args) {
-  return {
-    type: 'mord',
-    limits: 'nolimits',
-    symbol: true,
-    isFunction: false,
-    body: args[0] ? {
-      'c': 'ç',
-      'C': 'Ç'
-    }[args[0]] || '' : '',
-    baseFontFamily: 'cmr'
-  };
-}); // Body-text symbols
-// See http://ctan.mirrors.hoobly.com/info/symbols/comprehensive/symbols-a4.pdf, p14
-
-var TEXT_SYMBOLS = {
-  '\\#': "#",
-  '\\&': "&",
-  '\\$': '$',
-  '\\%': '%',
-  '\\_': '_',
-  '\\euro': "\u20AC",
-  '\\maltese': "\u2720",
-  '\\{': '{',
-  '\\}': '}',
-  '\\nobreakspace': "\xA0",
-  '\\ldots': "\u2026",
-  '\\textellipsis': "\u2026",
-  '\\backslash': '\\',
-  '`': "\u2018",
-  '\'': "\u2019",
-  '``': "\u201C",
-  '\'\'': "\u201D",
-  '\\degree': "\xB0",
-  '\\textasciicircum': '^',
-  '\\textasciitilde': '~',
-  '\\textasteriskcentered': '*',
-  '\\textbackslash': '\\',
-  '\\textbraceleft': '{',
-  '\\textbraceright': '}',
-  '\\textbullet': '•',
-  '\\textdollar': '$',
-  '\\textsterling': '£',
-  '–': "\u2013",
-  // EN DASH
-  '—': "\u2014",
-  // EM DASH
-  '‘': "\u2018",
-  // LEFT SINGLE QUOTATION MARK
-  '’': "\u2019",
-  // RIGHT SINGLE QUOTATION MARK
-  '“': "\u201C",
-  // LEFT DOUBLE QUOTATION MARK
-  '”': "\u201D",
-  // RIGHT DOUBLE QUOTATION MARK
-  '"': "\u201D",
-  // DOUBLE PRIME
-  '\\ss': "\xDF",
-  // LATIN SMALL LETTER SHARP S
-  '\\ae': "\xE6",
-  // LATIN SMALL LETTER AE
-  '\\oe': "\u0153",
-  // LATIN SMALL LIGATURE OE
-  '\\AE': "\xC6",
-  // LATIN CAPITAL LETTER AE
-  '\\OE': "\u0152",
-  // LATIN CAPITAL LIGATURE OE
-  '\\O': "\xD8",
-  // LATIN CAPITAL LETTER O WITH STROKE
-  '\\i': "\u0131",
-  // LATIN SMALL LETTER DOTLESS I
-  '\\j': "\u0237",
-  // LATIN SMALL LETTER DOTLESS J
-  '\\aa': "\xE5",
-  // LATIN SMALL LETTER A WITH RING ABOVE
-  '\\AA': "\xC5" // LATIN CAPITAL LETTER A WITH RING ABOVE
-
-};
-var COMMAND_MODE_CHARACTERS = /[a-zA-Z0-9!@*()-=+{}[\]\\';:?/.,~<>`|'$%#&^_" ]/; // Word boundaries for Cyrillic, Polish, French, German, Italian
-// and Spanish. We use \p{L} (Unicode property escapes: "Letter")
-// but Firefox doesn't support it
-// (https://bugzilla.mozilla.org/show_bug.cgi?id=1361876). Booo...
-// See also https://stackoverflow.com/questions/26133593/using-regex-to-match-international-unicode-alphanumeric-characters-in-javascript
-// Edit : https://github.com/arnog/mathlive/issues/195#issuecomment-493741744
-
-var LETTER = // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ?
-/[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // :
-//    new RegExp("\\p{Letter}", 'u');
-
-var LETTER_AND_DIGITS = // typeof navigator !== 'undefined'  && /firefox/i.test(navigator.userAgent) ?
-/[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // :
-//   new RegExp("[0-9\\p{Letter}]", 'u');
-
-var _default = {
-  matchCodepoint: matchCodepoint,
-  commandAllowed: commandAllowed,
-  unicodeToMathVariant: unicodeToMathVariant,
-  mathVariantToUnicode: mathVariantToUnicode,
-  unicodeStringToLatex: unicodeStringToLatex,
-  getInfo: getInfo,
-  getValue: getValue,
-  getEnvironmentInfo: getEnvironmentInfo,
-  suggest: suggest,
-  FREQUENCY_VALUE: FREQUENCY_VALUE,
-  TEXT_SYMBOLS: TEXT_SYMBOLS,
-  MATH_SYMBOLS: MATH_SYMBOLS,
-  ENVIRONMENTS: ENVIRONMENTS,
-  RIGHT_DELIM: RIGHT_DELIM,
-  FUNCTIONS: FUNCTIONS,
-  MACROS: MACROS,
-  COMMAND_MODE_CHARACTERS: COMMAND_MODE_CHARACTERS,
-  LETTER: LETTER,
-  LETTER_AND_DIGITS: LETTER_AND_DIGITS // TODO
-  // Some missing greek letters, but see https://reference.wolfram.com/language/tutorial/LettersAndLetterLikeForms.html
-  // koppa, stigma, Sampi
-  // See https://tex.stackexchange.com/questions/231878/accessing-archaic-greek-koppa-in-the-birkmult-document-class
-  // Capital Alpha, etc...
-  // Colon (ratio) (2236)
-  // Function names can have '*' in them
-  // Review:
-  // https://en.wikipedia.org/wiki/Help:Displaying_a_formula
-  // https://reference.wolfram.com/language/tutorial/LettersAndLetterLikeForms.html
-  // ftp://ftp.dante.de/tex-archive/info/symbols/comprehensive/symbols-a4.pdf
-  // Media Wiki Reference
-  // https://en.wikipedia.org/wiki/Help:Displaying_a_formula
-  // MathJax Reference
-  // http://docs.mathjax.org/en/latest/tex.html#supported-latex-commands
-  // http://www.onemathematicalcat.org/MathJaxDocumentation/TeXSyntax.htm
-  // LaTeX Reference
-  // http://ctan.sharelatex.com/tex-archive/info/latex2e-help-texinfo/latex2e.html
-  // iBooks Author/Pages
-  // https://support.apple.com/en-au/HT202501
-  // Mathematica Reference
-  // https://reference.wolfram.com/language/tutorial/NamesOfSymbolsAndMathematicalObjects.html
-  // https://reference.wolfram.com/language/guide/MathematicalTypesetting.html
-
-  /*
-      * @todo \sb (equivalent to _) $\mathfrak{sl}\sb 2$ frequency 184
-      * @todo \sp (equivalent to ^) $\mathfrak{sl}\sp 2$ frequency 274
-      * \intertext    frequency 0
-  
-  
-      See http://mirrors.ibiblio.org/CTAN/macros/latex/contrib/mathtools/mathtools.pdf
-  
-  */
-
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/delimiters.js b/dist/core/delimiters.js
deleted file mode 100755
index 11f4f69b0..000000000
--- a/dist/core/delimiters.js
+++ /dev/null
@@ -1,609 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _definitions = _interopRequireDefault(require("./definitions.js"));
-
-var _span = _interopRequireDefault(require("./span.js"));
-
-var _mathstyle = _interopRequireDefault(require("./mathstyle.js"));
-
-var _fontMetrics = _interopRequireDefault(require("./fontMetrics.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/**
- * This module deals with creating delimiters of various sizes. The TeXbook
- * discusses these routines on page 441-442, in the "Another subroutine sets box
- * x to a specified variable delimiter" paragraph.
- *
- * There are three main routines here. `makeSmallDelim` makes a delimiter in the
- * normal font, but in either text, script, or scriptscript style.
- * `makeLargeDelim` makes a delimiter in textstyle, but in one of the Size1,
- * Size2, Size3, or Size4 fonts. `makeStackedDelim` makes a delimiter out of
- * smaller pieces that are stacked on top of one another.
- *
- * The functions take a parameter `center`, which determines if the delimiter
- * should be centered around the axis.
- *
- * Then, there are three exposed functions. `sizedDelim` makes a delimiter in
- * one of the given sizes. This is used for things like `\bigl`.
- * `customSizedDelim` makes a delimiter with a given total height+depth. It is
- * called in places like `\sqrt`. `leftRightDelim` makes an appropriate
- * delimiter which surrounds an expression of a given height an depth. It is
- * used in `\left` and `\right`.
- * @summary   Handling of delimiters surrounds symbols.
- * @module core/delimiters
- * @private
- */
-var makeSymbol = _span.default.makeSymbol;
-var makeSpan = _span.default.makeSpan;
-var makeVlist = _span.default.makeVlist;
-/**
- * Makes a small delimiter. This is a delimiter that comes in the Main-Regular
- * font, but is restyled to either be in textstyle, scriptstyle, or
- * scriptscriptstyle.
- * @memberof module:delimiters
- * @private
- */
-
-function makeSmallDelim(type, delim, style, center, context, classes) {
-  var text = makeSymbol('AMS-Regular', _definitions.default.getValue('math', delim));
-
-  var span = _span.default.makeStyleWrap(type, text, context.mathstyle, style, classes);
-
-  if (center) {
-    span.setTop((1 - context.mathstyle.sizeMultiplier / style.sizeMultiplier) * context.mathstyle.metrics.axisHeight);
-  }
-
-  span.setStyle('color', context.color);
-  if (typeof context.opacity === 'number') span.setStyle('opacity', context.opacity);
-  return span;
-}
-/**
- * Makes a large delimiter. This is a delimiter that comes in the Size1, Size2,
- * Size3, or Size4 fonts. It is always rendered in textstyle.
- * @memberof module:delimiters
- * @private
- */
-
-
-function makeLargeDelim(type, delim, size, center, context, classes) {
-  var inner = makeSymbol('Size' + size + '-Regular', _definitions.default.getValue('math', delim));
-
-  var result = _span.default.makeStyleWrap(type, makeSpan(inner, 'delimsizing size' + size), context.mathstyle, _mathstyle.default.TEXT, classes);
-
-  if (center) {
-    result.setTop((1 - context.mathstyle.sizeMultiplier) * context.mathstyle.metrics.axisHeight);
-  }
-
-  result.setStyle('color', context.color);
-  if (typeof context.opacity === 'number') result.setStyle('opacity', context.opacity);
-  return result;
-}
-/**
- * Make an inner span with the given offset and in the given font. This is used
- * in `makeStackedDelim` to make the stacking pieces for the delimiter.
- * @memberof module:delimiters
- * @private
- */
-
-
-function makeInner(symbol, font) {
-  var sizeClass = ''; // Apply the correct CSS class to choose the right font.
-
-  if (font === 'Size1-Regular') {
-    sizeClass = ' delim-size1';
-  } else if (font === 'Size4-Regular') {
-    sizeClass = ' delim-size4';
-  } // @todo: revisit if all this wrapping is needed or if the spans could
-  // be simplified
-
-
-  var inner = makeSpan(makeSymbol(font, _definitions.default.getValue('math', symbol)), 'delimsizinginner' + sizeClass);
-  return inner;
-}
-/**
- * Make a stacked delimiter out of a given delimiter, with the total height at
- * least `heightTotal`. This routine is mentioned on page 442 of the TeXbook.
- * @memberof module:delimiters
- * @private
- */
-
-
-function makeStackedDelim(type, delim, heightTotal, center, context, classes) {
-  // There are four parts, the top, an optional middle, a repeated part, and a
-  // bottom.
-  var top;
-  var middle;
-  var repeat;
-  var bottom;
-  top = repeat = bottom = _definitions.default.getValue('math', delim);
-  middle = null; // Also keep track of what font the delimiters are in
-
-  var font = 'Size1-Regular'; // We set the parts and font based on the symbol. Note that we use
-  // '\u23d0' instead of '|' and '\u2016' instead of '\\|' for the
-  // repeats of the arrows
-
-  if (delim === '\\vert' || delim === '\\lvert' || delim === '\\rvert' || delim === '\\mvert' || delim === '\\mid') {
-    repeat = top = bottom = "\u2223";
-  } else if (delim === '\\Vert' || delim === '\\lVert' || delim === '\\rVert' || delim === '\\mVert' || delim === '\\|') {
-    repeat = top = bottom = "\u2225";
-  } else if (delim === "\\uparrow") {
-    repeat = bottom = "\u23D0";
-  } else if (delim === "\\Uparrow") {
-    repeat = bottom = "\u2016";
-  } else if (delim === '\\downarrow') {
-    top = repeat = "\u23D0";
-  } else if (delim === '\\Downarrow') {
-    top = repeat = "\u2016";
-  } else if (delim === "\\updownarrow") {
-    top = "\u2191";
-    repeat = "\u23D0";
-    bottom = "\u2193";
-  } else if (delim === "\\Updownarrow") {
-    top = "\u21D1";
-    repeat = "\u2016";
-    bottom = "\u21D3";
-  } else if (delim === '[' || delim === '\\lbrack') {
-    top = "\u23A1";
-    repeat = "\u23A2";
-    bottom = "\u23A3";
-    font = 'Size4-Regular';
-  } else if (delim === ']' || delim === '\\rbrack') {
-    top = "\u23A4";
-    repeat = "\u23A5";
-    bottom = "\u23A6";
-    font = 'Size4-Regular';
-  } else if (delim === '\\lfloor') {
-    repeat = top = "\u23A2";
-    bottom = "\u23A3";
-    font = 'Size4-Regular';
-  } else if (delim === '\\lceil') {
-    top = "\u23A1";
-    repeat = bottom = "\u23A2";
-    font = 'Size4-Regular';
-  } else if (delim === '\\rfloor') {
-    repeat = top = "\u23A5";
-    bottom = "\u23A6";
-    font = 'Size4-Regular';
-  } else if (delim === '\\rceil') {
-    top = "\u23A4";
-    repeat = bottom = "\u23A5";
-    font = 'Size4-Regular';
-  } else if (delim === '(') {
-    top = "\u239B";
-    repeat = "\u239C";
-    bottom = "\u239D";
-    font = 'Size4-Regular';
-  } else if (delim === ')') {
-    top = "\u239E";
-    repeat = "\u239F";
-    bottom = "\u23A0";
-    font = 'Size4-Regular';
-  } else if (delim === '\\{' || delim === '\\lbrace') {
-    top = "\u23A7";
-    middle = "\u23A8";
-    bottom = "\u23A9";
-    repeat = "\u23AA";
-    font = 'Size4-Regular';
-  } else if (delim === '\\}' || delim === '\\rbrace') {
-    top = "\u23AB";
-    middle = "\u23AC";
-    bottom = "\u23AD";
-    repeat = "\u23AA";
-    font = 'Size4-Regular';
-  } else if (delim === '\\lgroup') {
-    top = "\u23A7";
-    bottom = "\u23A9";
-    repeat = "\u23AA";
-    font = 'Size4-Regular';
-  } else if (delim === '\\rgroup') {
-    top = "\u23AB";
-    bottom = "\u23AD";
-    repeat = "\u23AA";
-    font = 'Size4-Regular';
-  } else if (delim === '\\lmoustache') {
-    top = "\u23A7";
-    bottom = "\u23AD";
-    repeat = "\u23AA";
-    font = 'Size4-Regular';
-  } else if (delim === '\\rmoustache') {
-    top = "\u23AB";
-    bottom = "\u23A9";
-    repeat = "\u23AA";
-    font = 'Size4-Regular';
-  } else if (delim === '\\surd') {
-    top = "\uE001";
-    bottom = "\u23B7";
-    repeat = "\uE000";
-    font = 'Size4-Regular';
-  } else if (delim === "\\ulcorner") {
-    top = "\u250C";
-    repeat = bottom = ' ';
-  } else if (delim === "\\urcorner") {
-    top = "\u2510";
-    repeat = bottom = ' ';
-  } else if (delim === '\\llcorner') {
-    bottom = "\u2514";
-    repeat = top = ' ';
-  } else if (delim === '\\lrcorner') {
-    top = "\u2518";
-    repeat = top = ' ';
-  } // Get the metrics of the four sections
-
-
-  var topMetrics = _fontMetrics.default.getCharacterMetrics(_definitions.default.getValue('math', top), font);
-
-  var topHeightTotal = topMetrics.height + topMetrics.depth;
-
-  var repeatMetrics = _fontMetrics.default.getCharacterMetrics(_definitions.default.getValue('math', repeat), font);
-
-  var repeatHeightTotal = repeatMetrics.height + repeatMetrics.depth;
-
-  var bottomMetrics = _fontMetrics.default.getCharacterMetrics(_definitions.default.getValue('math', bottom), font);
-
-  var bottomHeightTotal = bottomMetrics.height + bottomMetrics.depth;
-  var middleHeightTotal = 0;
-  var middleFactor = 1;
-
-  if (middle !== null) {
-    var middleMetrics = _fontMetrics.default.getCharacterMetrics(_definitions.default.getValue('math', middle), font);
-
-    middleHeightTotal = middleMetrics.height + middleMetrics.depth;
-    middleFactor = 2; // repeat symmetrically above and below middle
-  } // Calculate the minimal height that the delimiter can have.
-  // It is at least the size of the top, bottom, and optional middle combined.
-
-
-  var minHeight = topHeightTotal + bottomHeightTotal + middleHeightTotal; // Compute the number of copies of the repeat symbol we will need
-
-  var repeatCount = Math.ceil((heightTotal - minHeight) / (middleFactor * repeatHeightTotal)); // Compute the total height of the delimiter including all the symbols
-
-  var realHeightTotal = minHeight + repeatCount * middleFactor * repeatHeightTotal; // The center of the delimiter is placed at the center of the axis. Note
-  // that in this context, 'center' means that the delimiter should be
-  // centered around the axis in the current style, while normally it is
-  // centered around the axis in textstyle.
-
-  var axisHeight = context.mathstyle.metrics.axisHeight;
-
-  if (center) {
-    axisHeight *= context.mathstyle.sizeMultiplier;
-  } // Calculate the depth
-
-
-  var depth = realHeightTotal / 2 - axisHeight; // Now, we start building the pieces that will go into the vlist
-  // Keep a list of the inner pieces
-
-  var inners = []; // Add the bottom symbol
-
-  inners.push(makeInner(bottom, font));
-
-  if (middle === null) {
-    // Add that many symbols
-    for (var i = 0; i < repeatCount; i++) {
-      inners.push(makeInner(repeat, font));
-    }
-  } else {
-    // When there is a middle bit, we need the middle part and two repeated
-    // sections
-    for (var _i = 0; _i < repeatCount; _i++) {
-      inners.push(makeInner(repeat, font));
-    }
-
-    inners.push(makeInner(middle, font));
-
-    for (var _i2 = 0; _i2 < repeatCount; _i2++) {
-      inners.push(makeInner(repeat, font));
-    }
-  } // Add the top symbol
-
-
-  inners.push(makeInner(top, font)); // Finally, build the vlist
-
-  var inner = makeVlist(context, inners, 'bottom', depth);
-  inner.setStyle('color', context.color);
-  if (typeof context.opacity === 'number') inner.setStyle('opacity', context.opacity);
-  return _span.default.makeStyleWrap(type, makeSpan(inner, 'delimsizing mult'), context.mathstyle, _mathstyle.default.TEXT, classes);
-} // There are three kinds of delimiters, delimiters that stack when they become
-// too large
-
-
-var stackLargeDelimiters = ['(', ')', '[', '\\lbrack', ']', '\\rbrack', '\\{', '\\lbrace', '\\}', '\\rbrace', '\\lfloor', '\\rfloor', '\\lceil', '\\rceil', '\\surd']; // delimiters that always stack
-
-var stackAlwaysDelimiters = ["\\uparrow", '\\downarrow', "\\updownarrow", "\\Uparrow", '\\Downarrow', "\\Updownarrow", '|', '\\|', '\\vert', '\\Vert', '\\lvert', '\\rvert', '\\lVert', '\\rVert', '\\mvert', '\\mid', '\\lgroup', '\\rgroup', '\\lmoustache', '\\rmoustache']; // and delimiters that never stack
-
-var stackNeverDelimiters = ['<', '>', '\\langle', '\\rangle', '/', '\\backslash', '\\lt', '\\gt']; // Metrics of the different sizes. Found by looking at TeX's output of
-// $\bigl| // \Bigl| \biggl| \Biggl| \showlists$
-// Used to create stacked delimiters of appropriate sizes in makeSizedDelim.
-
-var sizeToMaxHeight = [0, 1.2, 1.8, 2.4, 3.0];
-/**
- * Used to create a delimiter of a specific size, where `size` is 1, 2, 3, or 4.
- * @memberof module:delimiters
- * @private
- */
-
-function makeSizedDelim(type, delim, size, context, classes) {
-  if (delim === '.') {
-    // Empty delimiters still count as elements, even though they don't
-    // show anything.
-    return makeNullFence(type, context, classes); // return makeSpan('', classes);
-  } // < and > turn into \langle and \rangle in delimiters
-
-
-  if (delim === '<' || delim === '\\lt') {
-    delim = '\\langle';
-  } else if (delim === '>' || delim === '\\gt') {
-    delim = '\\rangle';
-  } // Sized delimiters are never centered.
-
-
-  if (stackLargeDelimiters.includes(delim) || stackNeverDelimiters.includes(delim)) {
-    return makeLargeDelim(type, delim, size, false, context, classes);
-  } else if (stackAlwaysDelimiters.includes(delim)) {
-    return makeStackedDelim(type, delim, sizeToMaxHeight[size], false, context, classes);
-  }
-
-  console.assert(false, 'Unknown delimiter \'' + delim + '\'');
-  return null;
-}
-/**
- * There are three different sequences of delimiter sizes that the delimiters
- * follow depending on the kind of delimiter. This is used when creating custom
- * sized delimiters to decide whether to create a small, large, or stacked
- * delimiter.
- *
- * In real TeX, these sequences aren't explicitly defined, but are instead
- * defined inside the font metrics. Since there are only three sequences that
- * are possible for the delimiters that TeX defines, it is easier to just encode
- * them explicitly here.
- */
-// Delimiters that never stack try small delimiters and large delimiters only
-
-
-var stackNeverDelimiterSequence = [{
-  type: 'small',
-  mathstyle: _mathstyle.default.SCRIPTSCRIPT
-}, {
-  type: 'small',
-  mathstyle: _mathstyle.default.SCRIPT
-}, {
-  type: 'small',
-  mathstyle: _mathstyle.default.TEXT
-}, {
-  type: 'large',
-  size: 1
-}, {
-  type: 'large',
-  size: 2
-}, {
-  type: 'large',
-  size: 3
-}, {
-  type: 'large',
-  size: 4
-}]; // Delimiters that always stack try the small delimiters first, then stack
-
-var stackAlwaysDelimiterSequence = [{
-  type: 'small',
-  mathstyle: _mathstyle.default.SCRIPTSCRIPT
-}, {
-  type: 'small',
-  mathstyle: _mathstyle.default.SCRIPT
-}, {
-  type: 'small',
-  mathstyle: _mathstyle.default.TEXT
-}, {
-  type: 'stack'
-}]; // Delimiters that stack when large try the small and then large delimiters, and
-// stack afterwards
-
-var stackLargeDelimiterSequence = [{
-  type: 'small',
-  mathstyle: _mathstyle.default.SCRIPTSCRIPT
-}, {
-  type: 'small',
-  mathstyle: _mathstyle.default.SCRIPT
-}, {
-  type: 'small',
-  mathstyle: _mathstyle.default.TEXT
-}, {
-  type: 'large',
-  size: 1
-}, {
-  type: 'large',
-  size: 2
-}, {
-  type: 'large',
-  size: 3
-}, {
-  type: 'large',
-  size: 4
-}, {
-  type: 'stack'
-}];
-/**
- * Get the font used in a delimiter based on what kind of delimiter it is.
- */
-
-function delimTypeToFont(type) {
-  if (type.type === 'small') {
-    return 'Main-Regular';
-  } else if (type.type === 'large') {
-    return 'Size' + type.size + '-Regular';
-  }
-
-  console.assert(type.type === 'stack');
-  return 'Size4-Regular';
-}
-/**
- * Traverse a sequence of types of delimiters to decide what kind of delimiter
- * should be used to create a delimiter of the given height+depth.
- * @param {string} delim: a character value (not a command)
- * @memberof module:delimiters
- * @private
- */
-
-
-function traverseSequence(delim, height, sequence, context) {
-  // Here, we choose the index we should start at in the sequences. In smaller
-  // sizes (which correspond to larger numbers in style.size) we start earlier
-  // in the sequence. Thus, scriptscript starts at index 3-3=0, script starts
-  // at index 3-2=1, text starts at 3-1=2, and display starts at min(2,3-0)=2
-  var start = Math.min(2, 3 - context.mathstyle.size);
-
-  for (var i = start; i < sequence.length; i++) {
-    if (sequence[i].type === 'stack') {
-      // This is always the last delimiter, so we just break the loop now.
-      break;
-    }
-
-    var metrics = _fontMetrics.default.getCharacterMetrics(delim, delimTypeToFont(sequence[i]));
-
-    if (metrics.defaultMetrics) {
-      // If we don't have metrics info for this character,
-      // assume we'll construct as a small delimiter
-      return {
-        type: 'small',
-        mathstyle: _mathstyle.default.SCRIPT
-      };
-    }
-
-    var heightDepth = metrics.height + metrics.depth; // Small delimiters are scaled down versions of the same font, so we
-    // account for the style change size.
-
-    if (sequence[i].type === 'small') {
-      heightDepth *= sequence[i].mathstyle.sizeMultiplier;
-    } // Check if the delimiter at this size works for the given height.
-
-
-    if (heightDepth > height) {
-      return sequence[i];
-    }
-  } // If we reached the end of the sequence, return the last sequence element.
-
-
-  return sequence[sequence.length - 1];
-}
-/**
- * Make a delimiter of a given height+depth, with optional centering. Here, we
- * traverse the sequences, and create a delimiter that the sequence tells us to.
- *
- * @param {string} type 'mopen' or 'mclose'
- * @param {string} delim
- * @param {number} height
- * @param {boolean} center
- * @param {Context.Context} context
- * @param {string[]} classes
- * @memberof module:delimiters
- * @private
- */
-
-
-function makeCustomSizedDelim(type, delim, height, center, context, classes) {
-  if (!delim || delim.length === 0 || delim === '.') {
-    return makeNullFence(type, context, type);
-  }
-
-  if (delim === '<' || delim === '\\lt') {
-    delim = '\\langle';
-  } else if (delim === '>' || delim === '\\gt') {
-    delim = '\\rangle';
-  } // Decide what sequence to use
-
-
-  var sequence;
-
-  if (stackNeverDelimiters.includes(delim)) {
-    sequence = stackNeverDelimiterSequence;
-  } else if (stackLargeDelimiters.includes(delim)) {
-    sequence = stackLargeDelimiterSequence;
-  } else {
-    sequence = stackAlwaysDelimiterSequence;
-  } // Look through the sequence
-
-
-  var delimType = traverseSequence(_definitions.default.getValue('math', delim), height, sequence, context); // Depending on the sequence element we decided on, call the appropriate
-  // function.
-
-  if (delimType.type === 'small') {
-    return makeSmallDelim(type, delim, delimType.mathstyle, center, context, classes);
-  } else if (delimType.type === 'large') {
-    return makeLargeDelim(type, delim, delimType.size, center, context, classes);
-  }
-
-  console.assert(delimType.type === 'stack');
-  return makeStackedDelim(type, delim, height, center, context, classes);
-}
-/**
- * Make a delimiter for use with `\left` and `\right`, given a height and depth
- * of an expression that the delimiters surround.
- * See tex.web:14994
- * @memberof module:delimiters
- * @private
- */
-
-
-function makeLeftRightDelim(type, delim, height, depth, context, classes) {
-  // If this is the empty delimiter, return a null fence
-  if (delim === '.') {
-    return makeNullFence(type, context, classes);
-  } // We always center \left/\right delimiters, so the axis is always shifted
-
-
-  var axisHeight = context.mathstyle.metrics.axisHeight * context.mathstyle.sizeMultiplier; // Taken from TeX source, tex.web, function make_left_right
-
-  var delimiterFactor = 901; // plain.tex:327
-
-  var delimiterShortfall = 5.0 / _fontMetrics.default.METRICS.ptPerEm; // plain.tex:345
-
-  var delta2 = depth + axisHeight;
-  var delta1 = height - axisHeight;
-  delta1 = Math.max(delta2, delta1);
-  var delta = delta1 * delimiterFactor / 500;
-  delta2 = 2 * delta1 - delimiterShortfall;
-  delta = Math.max(delta, delta2); // const maxDistFromAxis = Math.max(height - axisHeight, depth + axisHeight);
-  // const totalHeight = Math.max(
-  //     // In real TeX, calculations are done using integral values which are
-  //     // 65536 per pt, or 655360 per em. So, the division here truncates in
-  //     // TeX but doesn't here, producing different results. If we wanted to
-  //     // exactly match TeX's calculation, we could do
-  //     //   Math.floor(655360 * maxDistFromAxis / 500) *
-  //     //    delimiterFactor / 655360
-  //     // (To see the difference, compare
-  //     //    x^{x^{\left(\rule{0.1em}{0.68em}\right)}}
-  //     // in TeX and KaTeX)
-  //     maxDistFromAxis / 500 * delimiterFactor,
-  //     2 * maxDistFromAxis - delimiterShortfall);
-  // Finally, we defer to `makeCustomSizedDelim` with our calculated total
-  // height
-
-  return makeCustomSizedDelim(type, delim, delta, true, context, classes);
-}
-/**
- *
- * @param {Context} context
- * @param {string} [type] either 'mopen', 'mclose' or null
- * @memberof module:delimiters
- * @private
- */
-
-
-function makeNullFence(type, context, classes) {
-  return _span.default.makeSpanOfType(type, '', 'sizing' + // @todo not useful, redundant with 'nulldelimiter'
-  // 'reset-' + context.size, 'size5',                 // @todo: that seems like a lot of resizing... do we need both?
-  context.mathstyle.adjustTo(_mathstyle.default.TEXT) + ' nulldelimiter ' // The null delimiter has a width, specified by class 'nulldelimiter'
-  + (classes || ''));
-} // Export the public interface for this module
-
-
-var _default = {
-  makeSizedDelim: makeSizedDelim,
-  makeCustomSizedDelim: makeCustomSizedDelim,
-  makeLeftRightDelim: makeLeftRightDelim
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/fontMetrics.js b/dist/core/fontMetrics.js
deleted file mode 100755
index c4c6333b7..000000000
--- a/dist/core/fontMetrics.js
+++ /dev/null
@@ -1,363 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = exports.METRICS = exports.SIGMAS = void 0;
-
-var _fontMetricsData = _interopRequireDefault(require("./fontMetricsData.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/* eslint no-unused-vars:0 */
-
-/**
- * This module contains metrics regarding fonts and individual symbols. The sigma
- * and xi variables, as well as the metricMap map contain data extracted from
- * TeX, TeX font metrics, and the TTF files. These data are then exposed via the
- * `metrics` variable and the getCharacterMetrics function.
- * @module core/fontMetrics
- * @private
- */
-// This metricMap contains a mapping from font name and character code to character
-// metrics, including height, depth, italic correction, and skew (kern from the
-// character to the corresponding \skewchar)
-// This map is generated via `make metrics`. It should not be changed manually.
-// const hangulRegex = /[\uAC00-\uD7AF]/;
-// This regex combines
-// - Hiragana: [\u3040-\u309F]
-// - Katakana: [\u30A0-\u30FF]
-// - CJK ideograms: [\u4E00-\u9FAF]
-// - Hangul syllables: [\uAC00-\uD7AF]
-// Notably missing are half width Katakana and Romaji glyphs.
-var cjkRegex = /[\u3040-\u309F]|[\u30A0-\u30FF]|[\u4E00-\u9FAF]|[\uAC00-\uD7AF]/;
-/**
- *
- * In TeX, there are actually three sets of dimensions, one for each of
- * textstyle, scriptstyle, and scriptscriptstyle.  These are provided in the
- * the arrays below, in that order.
- *
- * The font metrics are stored in fonts cmsy10, cmsy7, and cmsy5 respectively.
- * This was determined by running the following script:
- *``` bash
-      latex -interaction=nonstopmode \
-      '\documentclass{article}\usepackage{amsmath}\begin{document}' \
-      '$a$ \expandafter\show\the\textfont2' \
-      '\expandafter\show\the\scriptfont2' \
-      '\expandafter\show\the\scriptscriptfont2' \
-      '\stop'
-  ```
- * The metrics themselves were retrieved using the following commands:
- * ``` bash
-      tftopl cmsy10
-      tftopl cmsy7
-      tftopl cmsy5
-    ```
- *
- * The output of each of these commands is quite lengthy.  The only part we
- * care about is the FONTDIMEN section. Each value is measured in EMs.
- * @memberof module:fontMetrics
- */
-
-var SIGMAS = {
-  slant: [0.250, 0.250, 0.250],
-  // sigma1
-  space: [0.000, 0.000, 0.000],
-  // sigma2
-  stretch: [0.000, 0.000, 0.000],
-  // sigma3
-  shrink: [0.000, 0.000, 0.000],
-  // sigma4
-  xHeight: [0.431, 0.431, 0.431],
-  // sigma5
-  quad: [1.000, 1.171, 1.472],
-  // sigma6
-  extraSpace: [0.000, 0.000, 0.000],
-  // sigma7
-  num1: [0.677, 0.732, 0.925],
-  // sigma8
-  num2: [0.394, 0.384, 0.387],
-  // sigma9
-  num3: [0.444, 0.471, 0.504],
-  // sigma10
-  denom1: [0.686, 0.752, 1.025],
-  // sigma11
-  denom2: [0.345, 0.344, 0.532],
-  // sigma12
-  sup1: [0.413, 0.503, 0.504],
-  // sigma13
-  sup2: [0.363, 0.431, 0.404],
-  // sigma14
-  sup3: [0.289, 0.286, 0.294],
-  // sigma15
-  sub1: [0.150, 0.143, 0.200],
-  // sigma16
-  sub2: [0.247, 0.286, 0.400],
-  // sigma17
-  supDrop: [0.386, 0.353, 0.494],
-  // sigma18
-  subDrop: [0.050, 0.071, 0.100],
-  // sigma19
-  delim1: [2.390, 1.700, 1.980],
-  // sigma20
-  delim2: [1.010, 1.157, 1.420],
-  // sigma21
-  axisHeight: [0.250, 0.250, 0.250] // sigma22
-
-}; // These font metrics are extracted from TeX by using
-// \font\a=cmex10
-// \showthe\fontdimenX\a
-// where X is the corresponding variable number. These correspond to the font
-// parameters of the extension fonts (family 3). See the TeXbook, page 441.
-
-exports.SIGMAS = SIGMAS;
-var xi1 = 0;
-var xi2 = 0;
-var xi3 = 0;
-var xi4 = 0;
-var xi5 = 0.431;
-var xi6 = 1;
-var xi7 = 0;
-var xi8 = 0.04;
-var xi9 = 0.111;
-var xi10 = 0.166;
-var xi11 = 0.2;
-var xi12 = 0.6;
-var xi13 = 0.1; // This value determines how large a pt is, for metrics which are defined in
-// terms of pts.
-// This value is also used in katex.less; if you change it make sure the values
-// match.
-
-var ptPerEm = 10.0; // The space between adjacent `|` columns in an array definition. From
-// article.cls.txt:455
-
-var doubleRuleSep = 2.0 / ptPerEm;
-/**
- * This is just a mapping from common names to real metrics
- */
-
-var METRICS = {
-  defaultRuleThickness: xi8,
-  bigOpSpacing1: xi9,
-  bigOpSpacing2: xi10,
-  bigOpSpacing3: xi11,
-  bigOpSpacing4: xi12,
-  bigOpSpacing5: xi13,
-  ptPerEm: ptPerEm,
-  pxPerEm: ptPerEm * 4.0 / 3.0,
-  // A CSS pt is fixed at 1.333px
-  doubleRuleSep: 2.0 / ptPerEm,
-  arraycolsep: 5.0 / ptPerEm,
-  baselineskip: 12.0 / ptPerEm,
-  arrayrulewidth: 0.4 / ptPerEm,
-  fboxsep: 3 / ptPerEm,
-  // From letter.dtx:1626
-  fboxrule: 0.4 / ptPerEm // From letter.dtx:1627
-
-}; // These are very rough approximations.  We default to Times New Roman which
-// should have Latin-1 and Cyrillic characters, but may not depending on the
-// operating system.  The metrics do not account for extra height from the
-// accents.  In the case of Cyrillic characters which have both ascenders and
-// descenders we prefer approximations with ascenders, primarily to prevent
-// the fraction bar or root line from intersecting the glyph.
-// TODO(kevinb) allow union of multiple glyph metrics for better accuracy.
-
-exports.METRICS = METRICS;
-var extraCharacterMap = {
-  "\xA0": " ",
-  // NON-BREAKING SPACE is like space
-  "\u200B": " ",
-  // ZERO WIDTH SPACE is like space
-  // Latin-1
-  'Å': 'A',
-  'Ç': 'C',
-  'Ð': 'D',
-  'Þ': 'o',
-  'å': 'a',
-  'ç': 'c',
-  'ð': 'd',
-  'þ': 'o',
-  // Cyrillic
-  'А': 'A',
-  'Б': 'B',
-  'В': 'B',
-  'Г': 'F',
-  'Д': 'A',
-  'Е': 'E',
-  'Ж': 'K',
-  'З': '3',
-  'И': 'N',
-  'Й': 'N',
-  'К': 'K',
-  'Л': 'N',
-  'М': 'M',
-  'Н': 'H',
-  'О': 'O',
-  'П': 'N',
-  'Р': 'P',
-  'С': 'C',
-  'Т': 'T',
-  'У': 'y',
-  'Ф': 'O',
-  'Х': 'X',
-  'Ц': 'U',
-  'Ч': 'h',
-  'Ш': 'W',
-  'Щ': 'W',
-  'Ъ': 'B',
-  'Ы': 'X',
-  'Ь': 'B',
-  'Э': '3',
-  'Ю': 'X',
-  'Я': 'R',
-  'а': 'a',
-  'б': 'b',
-  'в': 'a',
-  'г': 'r',
-  'д': 'y',
-  'е': 'e',
-  'ж': 'm',
-  'з': 'e',
-  'и': 'n',
-  'й': 'n',
-  'к': 'n',
-  'л': 'n',
-  'м': 'm',
-  'н': 'n',
-  'о': 'o',
-  'п': 'n',
-  'р': 'p',
-  'с': 'c',
-  'т': 'o',
-  'у': 'y',
-  'ф': 'b',
-  'х': 'x',
-  'ц': 'n',
-  'ч': 'n',
-  'ш': 'w',
-  'щ': 'w',
-  'ъ': 'a',
-  'ы': 'm',
-  'ь': 'a',
-  'э': 'e',
-  'ю': 'm',
-  'я': 'r'
-};
-/**
- * This function is a convenience function for looking up information in the
- * metricMap table. It takes a character as a string, and a font name.
- *
- * Note: the `width` property may be undefined if fontMetricsData.js wasn't
- * built using `Make extended_metrics`.
- * @param {string} character 
- * @param {string} fontCode 
- * @memberof module:fontMetrics
- * @private
- */
-
-var getCharacterMetrics = function getCharacterMetrics(character, fontCode) {
-  var fontName = {
-    'cal': 'Caligraphic-Regular',
-    'ams': 'AMS-Regular',
-    'frak': 'Fraktur-Regular',
-    'bb': 'AMS-Regular',
-    'scr': 'Script-Regular',
-    'cmr': 'Main-Regular',
-    'cmtt': 'Typewriter-Regular',
-    'cmss': 'SansSerif-Regular'
-  }[fontCode] || fontCode; // console.assert(character.length === 1);
-  // console.assert(metricMap[fontName], 'Unknown font "' + fontName + '"');
-
-  var ch = character.charCodeAt(0);
-
-  if (character[0] in extraCharacterMap) {
-    ch = extraCharacterMap[character[0]].charCodeAt(0);
-  } else if (cjkRegex.test(character[0])) {
-    ch = 77; // 'M'.charCodeAt(0);
-  }
-
-  var metrics = _fontMetricsData.default[fontName][ch];
-
-  if (!metrics) {
-    // console.warn(
-    //     'No metrics for ' +
-    //     '"' + character + '" (U+' + ('000000' + ch.toString(16)).substr(-6) + ')' +
-    //     ' in font "' + fontName + '"');
-    // Assume default values.
-    // depth + height should be less than 1.0 em
-    return {
-      defaultMetrics: true,
-      depth: .20,
-      height: .70,
-      italic: 0,
-      skew: 0
-    };
-  }
-
-  if (metrics) {
-    return {
-      depth: metrics[0],
-      height: metrics[1],
-      italic: metrics[2],
-      skew: metrics[3]
-    };
-  }
-
-  return null;
-};
-/**
- *
- * @param {number|string} value If value is a string, it may be suffixed
- * with a unit, which will override the `unit` paramter
- * @param {string} unit
- * @param {number} precision
- */
-
-
-function convertDimenToEm(value, unit, precision) {
-  if (typeof value === 'string') {
-    var m = value.match(/([-+]?[0-9.]*)\s*([a-zA-Z]+)/);
-
-    if (!m) {
-      value = parseFloat(value);
-    } else {
-      value = parseFloat(m[1]);
-      unit = m[2].toLowerCase();
-    }
-  } // If the units are missing, TeX assumes 'pt'
-
-
-  var f = {
-    'pt': 1.0,
-    'mm': 7227 / 2540,
-    'cm': 7227 / 254,
-    'ex': 35271 / 8192,
-    'px': 3.0 / 4.0,
-    'em': METRICS.ptPerEm,
-    'bp': 803 / 800,
-    'dd': 1238 / 1157,
-    'pc': 12.0,
-    'in': 72.27,
-    'mu': 10 / 18
-  }[unit] || 1.0;
-
-  if (isFinite(precision)) {
-    var factor = Math.pow(10, precision);
-    return Math.round(value / METRICS.ptPerEm * f * factor) / factor;
-  }
-
-  return value / METRICS.ptPerEm * f;
-}
-
-function convertDimenToPx(value, unit) {
-  return convertDimenToEm(value, unit) * (4.0 / 3.0) * METRICS.ptPerEm;
-}
-
-var _default = {
-  toEm: convertDimenToEm,
-  toPx: convertDimenToPx,
-  METRICS: METRICS,
-  SIGMAS: SIGMAS,
-  getCharacterMetrics: getCharacterMetrics
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/fontMetricsData.js b/dist/core/fontMetricsData.js
deleted file mode 100755
index 1cf8765ef..000000000
--- a/dist/core/fontMetricsData.js
+++ /dev/null
@@ -1,1759 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-var _default = {
-  'AMS-Regular': {
-    '65': [0, 0.68889, 0, 0],
-    '66': [0, 0.68889, 0, 0],
-    '67': [0, 0.68889, 0, 0],
-    '68': [0, 0.68889, 0, 0],
-    '69': [0, 0.68889, 0, 0],
-    '70': [0, 0.68889, 0, 0],
-    '71': [0, 0.68889, 0, 0],
-    '72': [0, 0.68889, 0, 0],
-    '73': [0, 0.68889, 0, 0],
-    '74': [0.16667, 0.68889, 0, 0],
-    '75': [0, 0.68889, 0, 0],
-    '76': [0, 0.68889, 0, 0],
-    '77': [0, 0.68889, 0, 0],
-    '78': [0, 0.68889, 0, 0],
-    '79': [0.16667, 0.68889, 0, 0],
-    '80': [0, 0.68889, 0, 0],
-    '81': [0.16667, 0.68889, 0, 0],
-    '82': [0, 0.68889, 0, 0],
-    '83': [0, 0.68889, 0, 0],
-    '84': [0, 0.68889, 0, 0],
-    '85': [0, 0.68889, 0, 0],
-    '86': [0, 0.68889, 0, 0],
-    '87': [0, 0.68889, 0, 0],
-    '88': [0, 0.68889, 0, 0],
-    '89': [0, 0.68889, 0, 0],
-    '90': [0, 0.68889, 0, 0],
-    '107': [0, 0.68889, 0, 0],
-    '165': [0, 0.675, 0.025, 0],
-    '174': [0.15559, 0.69224, 0, 0],
-    '240': [0, 0.68889, 0, 0],
-    '295': [0, 0.68889, 0, 0],
-    '710': [0, 0.825, 0, 0],
-    '732': [0, 0.9, 0, 0],
-    '770': [0, 0.825, 0, 0],
-    '771': [0, 0.9, 0, 0],
-    '989': [0.08167, 0.58167, 0, 0],
-    '1008': [0, 0.43056, 0.04028, 0],
-    '8245': [0, 0.54986, 0, 0],
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-    '8503': [0, 0.68889, 0, 0],
-    '8504': [0, 0.68889, 0, 0],
-    '8513': [0, 0.68889, 0, 0],
-    '8592': [-0.03598, 0.46402, 0, 0],
-    '8594': [-0.03598, 0.46402, 0, 0],
-    '8602': [-0.13313, 0.36687, 0, 0],
-    '8603': [-0.13313, 0.36687, 0, 0],
-    '8606': [0.01354, 0.52239, 0, 0],
-    '8608': [0.01354, 0.52239, 0, 0],
-    '8610': [0.01354, 0.52239, 0, 0],
-    '8611': [0.01354, 0.52239, 0, 0],
-    '8619': [0, 0.54986, 0, 0],
-    '8620': [0, 0.54986, 0, 0],
-    '8621': [-0.13313, 0.37788, 0, 0],
-    '8622': [-0.13313, 0.36687, 0, 0],
-    '8624': [0, 0.69224, 0, 0],
-    '8625': [0, 0.69224, 0, 0],
-    '8630': [0, 0.43056, 0, 0],
-    '8631': [0, 0.43056, 0, 0],
-    '8634': [0.08198, 0.58198, 0, 0],
-    '8635': [0.08198, 0.58198, 0, 0],
-    '8638': [0.19444, 0.69224, 0, 0],
-    '8639': [0.19444, 0.69224, 0, 0],
-    '8642': [0.19444, 0.69224, 0, 0],
-    '8643': [0.19444, 0.69224, 0, 0],
-    '8644': [0.1808, 0.675, 0, 0],
-    '8646': [0.1808, 0.675, 0, 0],
-    '8647': [0.1808, 0.675, 0, 0],
-    '8648': [0.19444, 0.69224, 0, 0],
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-    '8653': [-0.13313, 0.36687, 0, 0],
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-    '8655': [-0.13313, 0.36687, 0, 0],
-    '8666': [0.13667, 0.63667, 0, 0],
-    '8667': [0.13667, 0.63667, 0, 0],
-    '8669': [-0.13313, 0.37788, 0, 0],
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-    '8709': [0.08167, 0.58167, 0, 0],
-    '8717': [0, 0.43056, 0, 0],
-    '8722': [-0.03598, 0.46402, 0, 0],
-    '8724': [0.08198, 0.69224, 0, 0],
-    '8726': [0.08167, 0.58167, 0, 0],
-    '8733': [0, 0.69224, 0, 0],
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-    '8737': [0, 0.69224, 0, 0],
-    '8738': [0.03517, 0.52239, 0, 0],
-    '8739': [0.08167, 0.58167, 0, 0],
-    '8740': [0.25142, 0.74111, 0, 0],
-    '8741': [0.08167, 0.58167, 0, 0],
-    '8742': [0.25142, 0.74111, 0, 0],
-    '8756': [0, 0.69224, 0, 0],
-    '8757': [0, 0.69224, 0, 0],
-    '8764': [-0.13313, 0.36687, 0, 0],
-    '8765': [-0.13313, 0.37788, 0, 0],
-    '8769': [-0.13313, 0.36687, 0, 0],
-    '8770': [-0.03625, 0.46375, 0, 0],
-    '8774': [0.30274, 0.79383, 0, 0],
-    '8776': [-0.01688, 0.48312, 0, 0],
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-    '8782': [0.06062, 0.54986, 0, 0],
-    '8783': [0.06062, 0.54986, 0, 0],
-    '8785': [0.08198, 0.58198, 0, 0],
-    '8786': [0.08198, 0.58198, 0, 0],
-    '8787': [0.08198, 0.58198, 0, 0],
-    '8790': [0, 0.69224, 0, 0],
-    '8791': [0.22958, 0.72958, 0, 0],
-    '8796': [0.08198, 0.91667, 0, 0],
-    '8806': [0.25583, 0.75583, 0, 0],
-    '8807': [0.25583, 0.75583, 0, 0],
-    '8808': [0.25142, 0.75726, 0, 0],
-    '8809': [0.25142, 0.75726, 0, 0],
-    '8812': [0.25583, 0.75583, 0, 0],
-    '8814': [0.20576, 0.70576, 0, 0],
-    '8815': [0.20576, 0.70576, 0, 0],
-    '8816': [0.30274, 0.79383, 0, 0],
-    '8817': [0.30274, 0.79383, 0, 0],
-    '8818': [0.22958, 0.72958, 0, 0],
-    '8819': [0.22958, 0.72958, 0, 0],
-    '8822': [0.1808, 0.675, 0, 0],
-    '8823': [0.1808, 0.675, 0, 0],
-    '8828': [0.13667, 0.63667, 0, 0],
-    '8829': [0.13667, 0.63667, 0, 0],
-    '8830': [0.22958, 0.72958, 0, 0],
-    '8831': [0.22958, 0.72958, 0, 0],
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-    '8833': [0.20576, 0.70576, 0, 0],
-    '8840': [0.30274, 0.79383, 0, 0],
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-    '8842': [0.13597, 0.63597, 0, 0],
-    '8843': [0.13597, 0.63597, 0, 0],
-    '8847': [0.03517, 0.54986, 0, 0],
-    '8848': [0.03517, 0.54986, 0, 0],
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-    '8859': [0.08198, 0.58198, 0, 0],
-    '8861': [0.08198, 0.58198, 0, 0],
-    '8862': [0, 0.675, 0, 0],
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-  },
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-    '90': [0, 0.68333, 0.07944, 0.13889]
-  },
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-    '8659': [1e-05, 0.6, 0, 0],
-    '8719': [0.25001, 0.75, 0, 0],
-    '8720': [0.25001, 0.75, 0, 0],
-    '8721': [0.25001, 0.75, 0, 0],
-    '8730': [0.35001, 0.85, 0, 0],
-    '8739': [-0.00599, 0.606, 0, 0],
-    '8741': [-0.00599, 0.606, 0, 0],
-    '8747': [0.30612, 0.805, 0.19445, 0],
-    '8748': [0.306, 0.805, 0.19445, 0],
-    '8749': [0.306, 0.805, 0.19445, 0],
-    '8750': [0.30612, 0.805, 0.19445, 0],
-    '8896': [0.25001, 0.75, 0, 0],
-    '8897': [0.25001, 0.75, 0, 0],
-    '8898': [0.25001, 0.75, 0, 0],
-    '8899': [0.25001, 0.75, 0, 0],
-    '8968': [0.35001, 0.85, 0, 0],
-    '8969': [0.35001, 0.85, 0, 0],
-    '8970': [0.35001, 0.85, 0, 0],
-    '8971': [0.35001, 0.85, 0, 0],
-    '9168': [-0.00099, 0.601, 0, 0],
-    '10216': [0.35001, 0.85, 0, 0],
-    '10217': [0.35001, 0.85, 0, 0],
-    '10752': [0.25001, 0.75, 0, 0],
-    '10753': [0.25001, 0.75, 0, 0],
-    '10754': [0.25001, 0.75, 0, 0],
-    '10756': [0.25001, 0.75, 0, 0],
-    '10758': [0.25001, 0.75, 0, 0]
-  },
-  'Size2-Regular': {
-    '40': [0.65002, 1.15, 0, 0],
-    '41': [0.65002, 1.15, 0, 0],
-    '47': [0.65002, 1.15, 0, 0],
-    '91': [0.65002, 1.15, 0, 0],
-    '92': [0.65002, 1.15, 0, 0],
-    '93': [0.65002, 1.15, 0, 0],
-    '123': [0.65002, 1.15, 0, 0],
-    '125': [0.65002, 1.15, 0, 0],
-    '710': [0, 0.75, 0, 0],
-    '732': [0, 0.75, 0, 0],
-    '770': [0, 0.75, 0, 0],
-    '771': [0, 0.75, 0, 0],
-    '8719': [0.55001, 1.05, 0, 0],
-    '8720': [0.55001, 1.05, 0, 0],
-    '8721': [0.55001, 1.05, 0, 0],
-    '8730': [0.65002, 1.15, 0, 0],
-    '8747': [0.86225, 1.36, 0.44445, 0],
-    '8748': [0.862, 1.36, 0.44445, 0],
-    '8749': [0.862, 1.36, 0.44445, 0],
-    '8750': [0.86225, 1.36, 0.44445, 0],
-    '8896': [0.55001, 1.05, 0, 0],
-    '8897': [0.55001, 1.05, 0, 0],
-    '8898': [0.55001, 1.05, 0, 0],
-    '8899': [0.55001, 1.05, 0, 0],
-    '8968': [0.65002, 1.15, 0, 0],
-    '8969': [0.65002, 1.15, 0, 0],
-    '8970': [0.65002, 1.15, 0, 0],
-    '8971': [0.65002, 1.15, 0, 0],
-    '10216': [0.65002, 1.15, 0, 0],
-    '10217': [0.65002, 1.15, 0, 0],
-    '10752': [0.55001, 1.05, 0, 0],
-    '10753': [0.55001, 1.05, 0, 0],
-    '10754': [0.55001, 1.05, 0, 0],
-    '10756': [0.55001, 1.05, 0, 0],
-    '10758': [0.55001, 1.05, 0, 0]
-  },
-  'Size3-Regular': {
-    '40': [0.95003, 1.45, 0, 0],
-    '41': [0.95003, 1.45, 0, 0],
-    '47': [0.95003, 1.45, 0, 0],
-    '91': [0.95003, 1.45, 0, 0],
-    '92': [0.95003, 1.45, 0, 0],
-    '93': [0.95003, 1.45, 0, 0],
-    '123': [0.95003, 1.45, 0, 0],
-    '125': [0.95003, 1.45, 0, 0],
-    '710': [0, 0.75, 0, 0],
-    '732': [0, 0.75, 0, 0],
-    '770': [0, 0.75, 0, 0],
-    '771': [0, 0.75, 0, 0],
-    '8730': [0.95003, 1.45, 0, 0],
-    '8968': [0.95003, 1.45, 0, 0],
-    '8969': [0.95003, 1.45, 0, 0],
-    '8970': [0.95003, 1.45, 0, 0],
-    '8971': [0.95003, 1.45, 0, 0],
-    '10216': [0.95003, 1.45, 0, 0],
-    '10217': [0.95003, 1.45, 0, 0]
-  },
-  'Size4-Regular': {
-    '40': [1.25003, 1.75, 0, 0],
-    '41': [1.25003, 1.75, 0, 0],
-    '47': [1.25003, 1.75, 0, 0],
-    '91': [1.25003, 1.75, 0, 0],
-    '92': [1.25003, 1.75, 0, 0],
-    '93': [1.25003, 1.75, 0, 0],
-    '123': [1.25003, 1.75, 0, 0],
-    '125': [1.25003, 1.75, 0, 0],
-    '710': [0, 0.825, 0, 0],
-    '732': [0, 0.825, 0, 0],
-    '770': [0, 0.825, 0, 0],
-    '771': [0, 0.825, 0, 0],
-    '8730': [1.25003, 1.75, 0, 0],
-    '8968': [1.25003, 1.75, 0, 0],
-    '8969': [1.25003, 1.75, 0, 0],
-    '8970': [1.25003, 1.75, 0, 0],
-    '8971': [1.25003, 1.75, 0, 0],
-    '9115': [0.64502, 1.155, 0, 0],
-    '9116': [1e-05, 0.6, 0, 0],
-    '9117': [0.64502, 1.155, 0, 0],
-    '9118': [0.64502, 1.155, 0, 0],
-    '9119': [1e-05, 0.6, 0, 0],
-    '9120': [0.64502, 1.155, 0, 0],
-    '9121': [0.64502, 1.155, 0, 0],
-    '9122': [-0.00099, 0.601, 0, 0],
-    '9123': [0.64502, 1.155, 0, 0],
-    '9124': [0.64502, 1.155, 0, 0],
-    '9125': [-0.00099, 0.601, 0, 0],
-    '9126': [0.64502, 1.155, 0, 0],
-    '9127': [1e-05, 0.9, 0, 0],
-    '9128': [0.65002, 1.15, 0, 0],
-    '9129': [0.90001, 0, 0, 0],
-    '9130': [0, 0.3, 0, 0],
-    '9131': [1e-05, 0.9, 0, 0],
-    '9132': [0.65002, 1.15, 0, 0],
-    '9133': [0.90001, 0, 0, 0],
-    '9143': [0.88502, 0.915, 0, 0],
-    '10216': [1.25003, 1.75, 0, 0],
-    '10217': [1.25003, 1.75, 0, 0],
-    '57344': [-0.00499, 0.605, 0, 0],
-    '57345': [-0.00499, 0.605, 0, 0],
-    '57680': [0, 0.12, 0, 0],
-    '57681': [0, 0.12, 0, 0],
-    '57682': [0, 0.12, 0, 0],
-    '57683': [0, 0.12, 0, 0]
-  },
-  'Typewriter-Regular': {
-    '33': [0, 0.61111, 0, 0],
-    '34': [0, 0.61111, 0, 0],
-    '35': [0, 0.61111, 0, 0],
-    '36': [0.08333, 0.69444, 0, 0],
-    '37': [0.08333, 0.69444, 0, 0],
-    '38': [0, 0.61111, 0, 0],
-    '39': [0, 0.61111, 0, 0],
-    '40': [0.08333, 0.69444, 0, 0],
-    '41': [0.08333, 0.69444, 0, 0],
-    '42': [0, 0.52083, 0, 0],
-    '43': [-0.08056, 0.53055, 0, 0],
-    '44': [0.13889, 0.125, 0, 0],
-    '45': [-0.08056, 0.53055, 0, 0],
-    '46': [0, 0.125, 0, 0],
-    '47': [0.08333, 0.69444, 0, 0],
-    '48': [0, 0.61111, 0, 0],
-    '49': [0, 0.61111, 0, 0],
-    '50': [0, 0.61111, 0, 0],
-    '51': [0, 0.61111, 0, 0],
-    '52': [0, 0.61111, 0, 0],
-    '53': [0, 0.61111, 0, 0],
-    '54': [0, 0.61111, 0, 0],
-    '55': [0, 0.61111, 0, 0],
-    '56': [0, 0.61111, 0, 0],
-    '57': [0, 0.61111, 0, 0],
-    '58': [0, 0.43056, 0, 0],
-    '59': [0.13889, 0.43056, 0, 0],
-    '60': [-0.05556, 0.55556, 0, 0],
-    '61': [-0.19549, 0.41562, 0, 0],
-    '62': [-0.05556, 0.55556, 0, 0],
-    '63': [0, 0.61111, 0, 0],
-    '64': [0, 0.61111, 0, 0],
-    '65': [0, 0.61111, 0, 0],
-    '66': [0, 0.61111, 0, 0],
-    '67': [0, 0.61111, 0, 0],
-    '68': [0, 0.61111, 0, 0],
-    '69': [0, 0.61111, 0, 0],
-    '70': [0, 0.61111, 0, 0],
-    '71': [0, 0.61111, 0, 0],
-    '72': [0, 0.61111, 0, 0],
-    '73': [0, 0.61111, 0, 0],
-    '74': [0, 0.61111, 0, 0],
-    '75': [0, 0.61111, 0, 0],
-    '76': [0, 0.61111, 0, 0],
-    '77': [0, 0.61111, 0, 0],
-    '78': [0, 0.61111, 0, 0],
-    '79': [0, 0.61111, 0, 0],
-    '80': [0, 0.61111, 0, 0],
-    '81': [0.13889, 0.61111, 0, 0],
-    '82': [0, 0.61111, 0, 0],
-    '83': [0, 0.61111, 0, 0],
-    '84': [0, 0.61111, 0, 0],
-    '85': [0, 0.61111, 0, 0],
-    '86': [0, 0.61111, 0, 0],
-    '87': [0, 0.61111, 0, 0],
-    '88': [0, 0.61111, 0, 0],
-    '89': [0, 0.61111, 0, 0],
-    '90': [0, 0.61111, 0, 0],
-    '91': [0.08333, 0.69444, 0, 0],
-    '92': [0.08333, 0.69444, 0, 0],
-    '93': [0.08333, 0.69444, 0, 0],
-    '94': [0, 0.61111, 0, 0],
-    '95': [0.09514, 0, 0, 0],
-    '96': [0, 0.61111, 0, 0],
-    '97': [0, 0.43056, 0, 0],
-    '98': [0, 0.61111, 0, 0],
-    '99': [0, 0.43056, 0, 0],
-    '100': [0, 0.61111, 0, 0],
-    '101': [0, 0.43056, 0, 0],
-    '102': [0, 0.61111, 0, 0],
-    '103': [0.22222, 0.43056, 0, 0],
-    '104': [0, 0.61111, 0, 0],
-    '105': [0, 0.61111, 0, 0],
-    '106': [0.22222, 0.61111, 0, 0],
-    '107': [0, 0.61111, 0, 0],
-    '108': [0, 0.61111, 0, 0],
-    '109': [0, 0.43056, 0, 0],
-    '110': [0, 0.43056, 0, 0],
-    '111': [0, 0.43056, 0, 0],
-    '112': [0.22222, 0.43056, 0, 0],
-    '113': [0.22222, 0.43056, 0, 0],
-    '114': [0, 0.43056, 0, 0],
-    '115': [0, 0.43056, 0, 0],
-    '116': [0, 0.55358, 0, 0],
-    '117': [0, 0.43056, 0, 0],
-    '118': [0, 0.43056, 0, 0],
-    '119': [0, 0.43056, 0, 0],
-    '120': [0, 0.43056, 0, 0],
-    '121': [0.22222, 0.43056, 0, 0],
-    '122': [0, 0.43056, 0, 0],
-    '123': [0.08333, 0.69444, 0, 0],
-    '124': [0.08333, 0.69444, 0, 0],
-    '125': [0.08333, 0.69444, 0, 0],
-    '126': [0, 0.61111, 0, 0],
-    '127': [0, 0.61111, 0, 0],
-    '305': [0, 0.43056, 0, 0],
-    '567': [0.22222, 0.43056, 0, 0],
-    '768': [0, 0.61111, 0, 0],
-    '769': [0, 0.61111, 0, 0],
-    '770': [0, 0.61111, 0, 0],
-    '771': [0, 0.61111, 0, 0],
-    '772': [0, 0.56555, 0, 0],
-    '774': [0, 0.61111, 0, 0],
-    '776': [0, 0.61111, 0, 0],
-    '778': [0, 0.61111, 0, 0],
-    '780': [0, 0.56597, 0, 0],
-    '915': [0, 0.61111, 0, 0],
-    '916': [0, 0.61111, 0, 0],
-    '920': [0, 0.61111, 0, 0],
-    '923': [0, 0.61111, 0, 0],
-    '926': [0, 0.61111, 0, 0],
-    '928': [0, 0.61111, 0, 0],
-    '931': [0, 0.61111, 0, 0],
-    '933': [0, 0.61111, 0, 0],
-    '934': [0, 0.61111, 0, 0],
-    '936': [0, 0.61111, 0, 0],
-    '937': [0, 0.61111, 0, 0],
-    '2018': [0, 0.61111, 0, 0],
-    '2019': [0, 0.61111, 0, 0],
-    '8242': [0, 0.61111, 0, 0]
-  }
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/grapheme-splitter.js b/dist/core/grapheme-splitter.js
deleted file mode 100644
index ed178ce70..000000000
--- a/dist/core/grapheme-splitter.js
+++ /dev/null
@@ -1,1510 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-/*
-Breaks a JavaScript string into individual user-perceived "characters" 
-called extended grapheme clusters by implementing the Unicode UAX-29 standard, version 8.0.0
-
-Usage:
-var splitter = new GraphemeSplitter();
-//returns an array of strings, one string for each grapheme cluster
-var graphemes = splitter.splitGraphemes(string); 
-
-*/
-var CR = 0,
-    LF = 1,
-    Control = 2,
-    Extend = 3,
-    Regional_Indicator = 4,
-    SpacingMark = 5,
-    L = 6,
-    V = 7,
-    T = 8,
-    LV = 9,
-    LVT = 10,
-    Other = 11,
-    Skin_Tone = 12; // Private function, gets a Unicode code point from a JavaScript UTF-16 string
-// handling surrogate pairs appropriately
-
-function codePointAt(str, idx) {
-  idx = idx || 0;
-  var code = str.charCodeAt(idx); // if a high surrogate
-
-  if (0xD800 <= code && code <= 0xDBFF && idx < str.length - 1) {
-    var hi = code;
-    var low = str.charCodeAt(idx + 1);
-
-    if (0xDC00 <= low && low <= 0xDFFF) {
-      return (hi - 0xD800) * 0x400 + (low - 0xDC00) + 0x10000;
-    }
-
-    return hi;
-  } // if a low surrogate
-
-
-  if (0xDC00 <= code && code <= 0xDFFF && idx >= 1) {
-    var _hi = str.charCodeAt(idx - 1);
-
-    var _low = code;
-
-    if (0xD800 <= _hi && _hi <= 0xDBFF) {
-      return (_hi - 0xD800) * 0x400 + (_low - 0xDC00) + 0x10000;
-    }
-
-    return _low;
-  } //just return the char if an unmatched surrogate half or a 
-  //single-char codepoint
-
-
-  return code;
-} // Private function, returns whether a break is allowed between the 
-// two given grapheme breaking classes
-
-
-function shouldBreak(previous, current) {
-  if (previous === Other && current === Skin_Tone) {
-    // From version 10. Skin tone modifiers with emojis
-    return false;
-  } else if (previous === Extend && current === Other) {
-    // From version 10. Combining emojis, such as the Bowie emoji
-    return false;
-  } else if (previous === Other && current === Extend) {
-    // From version 10. Combining emojis, such as skin tones emojis
-    return false;
-  } else if (previous === CR && current === LF) {
-    // GB3. CR X LF
-    return false;
-  } else if (previous === Control || previous === CR || previous === LF) {
-    // GB4. (Control|CR|LF) ÷
-    return true;
-  } else if (current === Control || current === CR || current === LF) {
-    // GB5. ÷ (Control|CR|LF)
-    return true;
-  } else if (previous === L && (current === L || current === V || current === LV || current === LVT)) {
-    // GB6. L X (L|V|LV|LVT)
-    return false;
-  } else if ((previous === LV || previous === V) && ( // GB7. (LV|V) X (V|T)
-  current === V || current === T)) {
-    return false;
-  } else if ((previous === LVT || previous === T) && current === T) {
-    // GB8. (LVT|T) X (T)
-    return false;
-  } else if (previous === Regional_Indicator && current === Regional_Indicator) {
-    // GB8a. Regional_Indicator X Regional_Indicator
-    return false;
-  } else if (current === Extend) {
-    // GB9. X Extend
-    return false;
-  } else if (current === SpacingMark) {
-    // GB9a. X SpacingMark
-    return false;
-  } // GB9b. Prepend X (there are currently no characters with this class)
-  // else if previous is Prepend
-  //   return false
-  // GB10. Any ÷ Any
-
-
-  return true;
-} // Returns the next grapheme break in the string after the given index
-
-
-function nextBreak(string, index) {
-  index = index || 0;
-
-  if (index < 0) {
-    return 0;
-  }
-
-  if (index >= string.length - 1) {
-    return string.length;
-  }
-
-  var prev = getGraphemeBreakProperty(codePointAt(string, index));
-
-  for (var i = index + 1; i < string.length; i++) {
-    // check for already processed low surrogates
-    if (0xd800 <= string.charCodeAt(i - 1) && string.charCodeAt(i - 1) <= 0xdbff && 0xdc00 <= string.charCodeAt(i) && string.charCodeAt(i) <= 0xdfff) {
-      continue;
-    }
-
-    var next = getGraphemeBreakProperty(codePointAt(string, i));
-
-    if (shouldBreak(prev, next)) {
-      return i;
-    }
-
-    prev = next;
-  }
-
-  return string.length;
-} // Breaks the given string into an array of grapheme cluster strings
-
-
-function splitGraphemes(str) {
-  // If it's all ASCII, short-circuit the grapheme splitting...
-  if (/^[\x20-\xFF]*$/.test(str)) return str;
-  var res = [];
-  var index = 0;
-  var brk;
-
-  while ((brk = nextBreak(str, index)) < str.length) {
-    res.push(str.slice(index, brk));
-    index = brk;
-  }
-
-  if (index < str.length) {
-    res.push(str.slice(index));
-  }
-
-  return res;
-} // Returns the number of grapheme clusters there are in the given string
-
-
-function countGraphemes(str) {
-  var count = 0;
-  var index = 0;
-  var brk;
-
-  while ((brk = nextBreak(str, index)) < str.length) {
-    index = brk;
-    count++;
-  }
-
-  if (index < str.length) {
-    count++;
-  }
-
-  return count;
-} //given a Unicode code point, determines this symbol's grapheme break property
-
-
-function getGraphemeBreakProperty(code) {
-  //grapheme break property for Unicode 8.0.0, 
-  //taken from http://www.unicode.org/Public/8.0.0/ucd/auxiliary/GraphemeBreakProperty.txt
-  //and adapted to JavaScript rules
-  if (0x000D === code // Cc       <control-000D>
-  ) {
-      return CR;
-    }
-
-  if (0x000A === code // Cc       <control-000A>
-  ) {
-      return LF;
-    }
-
-  if (0x0000 <= code && code <= 0x0009 || // Cc  [10] <control-0000>..<control-0009>
-  0x000B <= code && code <= 0x000C || // Cc   [2] <control-000B>..<control-000C>
-  0x000E <= code && code <= 0x001F || // Cc  [18] <control-000E>..<control-001F>
-  0x007F <= code && code <= 0x009F || // Cc  [33] <control-007F>..<control-009F>
-  0x00AD === code || // Cf       SOFT HYPHEN
-  0x0600 <= code && code <= 0x0605 || // Cf   [6] ARABIC NUMBER SIGN..ARABIC NUMBER MARK ABOVE
-  0x061C === code || // Cf       ARABIC LETTER MARK
-  0x06DD === code || // Cf       ARABIC END OF AYAH
-  0x070F === code || // Cf       SYRIAC ABBREVIATION MARK
-  0x180E === code || // Cf       MONGOLIAN VOWEL SEPARATOR
-  0x200B === code || // Cf       ZERO WIDTH SPACE
-  0x200E <= code && code <= 0x200F || // Cf   [2] LEFT-TO-RIGHT MARK..RIGHT-TO-LEFT MARK
-  0x2028 === code || // Zl       LINE SEPARATOR
-  0x2029 === code || // Zp       PARAGRAPH SEPARATOR
-  0x202A <= code && code <= 0x202E || // Cf   [5] LEFT-TO-RIGHT EMBEDDING..RIGHT-TO-LEFT OVERRIDE
-  0x2060 <= code && code <= 0x2064 || // Cf   [5] WORD JOINER..INVISIBLE PLUS
-  0x2065 === code || // Cn       <reserved-2065>
-  0x2066 <= code && code <= 0x206F || // Cf  [10] LEFT-TO-RIGHT ISOLATE..NOMINAL DIGIT SHAPES
-  0xD800 <= code && code <= 0xDFFF || // Cs [2048] <surrogate-D800>..<surrogate-DFFF>
-  0xFEFF === code || // Cf       ZERO WIDTH NO-BREAK SPACE
-  0xFFF0 <= code && code <= 0xFFF8 || // Cn   [9] <reserved-FFF0>..<reserved-FFF8>
-  0xFFF9 <= code && code <= 0xFFFB || // Cf   [3] INTERLINEAR ANNOTATION ANCHOR..INTERLINEAR ANNOTATION TERMINATOR
-  0x110BD === code || // Cf       KAITHI NUMBER SIGN
-  0x1BCA0 <= code && code <= 0x1BCA3 || // Cf   [4] SHORTHAND FORMAT LETTER OVERLAP..SHORTHAND FORMAT UP STEP
-  0x1D173 <= code && code <= 0x1D17A || // Cf   [8] MUSICAL SYMBOL BEGIN BEAM..MUSICAL SYMBOL END PHRASE
-  0xE0000 === code || // Cn       <reserved-E0000>
-  0xE0001 === code || // Cf       LANGUAGE TAG
-  0xE0002 <= code && code <= 0xE001F || // Cn  [30] <reserved-E0002>..<reserved-E001F>
-  0xE0020 <= code && code <= 0xE007F || // Cf  [96] TAG SPACE..CANCEL TAG
-  0xE0080 <= code && code <= 0xE00FF || // Cn [128] <reserved-E0080>..<reserved-E00FF>
-  0xE01F0 <= code && code <= 0xE0FFF // Cn [3600] <reserved-E01F0>..<reserved-E0FFF>
-  ) {
-      return Control;
-    }
-
-  if (0x0300 <= code && code <= 0x036F || // Mn [112] COMBINING GRAVE ACCENT..COMBINING LATIN SMALL LETTER X
-  0x0483 <= code && code <= 0x0487 || // Mn   [5] COMBINING CYRILLIC TITLO..COMBINING CYRILLIC POKRYTIE
-  0x0488 <= code && code <= 0x0489 || // Me   [2] COMBINING CYRILLIC HUNDRED THOUSANDS SIGN..COMBINING CYRILLIC MILLIONS SIGN
-  0x0591 <= code && code <= 0x05BD || // Mn  [45] HEBREW ACCENT ETNAHTA..HEBREW POINT METEG
-  0x05BF === code || // Mn       HEBREW POINT RAFE
-  0x05C1 <= code && code <= 0x05C2 || // Mn   [2] HEBREW POINT SHIN DOT..HEBREW POINT SIN DOT
-  0x05C4 <= code && code <= 0x05C5 || // Mn   [2] HEBREW MARK UPPER DOT..HEBREW MARK LOWER DOT
-  0x05C7 === code || // Mn       HEBREW POINT QAMATS QATAN
-  0x0610 <= code && code <= 0x061A || // Mn  [11] ARABIC SIGN SALLALLAHOU ALAYHE WASSALLAM..ARABIC SMALL KASRA
-  0x064B <= code && code <= 0x065F || // Mn  [21] ARABIC FATHATAN..ARABIC WAVY HAMZA BELOW
-  0x0670 === code || // Mn       ARABIC LETTER SUPERSCRIPT ALEF
-  0x06D6 <= code && code <= 0x06DC || // Mn   [7] ARABIC SMALL HIGH LIGATURE SAD WITH LAM WITH ALEF MAKSURA..ARABIC SMALL HIGH SEEN
-  0x06DF <= code && code <= 0x06E4 || // Mn   [6] ARABIC SMALL HIGH ROUNDED ZERO..ARABIC SMALL HIGH MADDA
-  0x06E7 <= code && code <= 0x06E8 || // Mn   [2] ARABIC SMALL HIGH YEH..ARABIC SMALL HIGH NOON
-  0x06EA <= code && code <= 0x06ED || // Mn   [4] ARABIC EMPTY CENTRE LOW STOP..ARABIC SMALL LOW MEEM
-  0x0711 === code || // Mn       SYRIAC LETTER SUPERSCRIPT ALAPH
-  0x0730 <= code && code <= 0x074A || // Mn  [27] SYRIAC PTHAHA ABOVE..SYRIAC BARREKH
-  0x07A6 <= code && code <= 0x07B0 || // Mn  [11] THAANA ABAFILI..THAANA SUKUN
-  0x07EB <= code && code <= 0x07F3 || // Mn   [9] NKO COMBINING SHORT HIGH TONE..NKO COMBINING DOUBLE DOT ABOVE
-  0x0816 <= code && code <= 0x0819 || // Mn   [4] SAMARITAN MARK IN..SAMARITAN MARK DAGESH
-  0x081B <= code && code <= 0x0823 || // Mn   [9] SAMARITAN MARK EPENTHETIC YUT..SAMARITAN VOWEL SIGN A
-  0x0825 <= code && code <= 0x0827 || // Mn   [3] SAMARITAN VOWEL SIGN SHORT A..SAMARITAN VOWEL SIGN U
-  0x0829 <= code && code <= 0x082D || // Mn   [5] SAMARITAN VOWEL SIGN LONG I..SAMARITAN MARK NEQUDAA
-  0x0859 <= code && code <= 0x085B || // Mn   [3] MANDAIC AFFRICATION MARK..MANDAIC GEMINATION MARK
-  0x08E3 <= code && code <= 0x0902 || // Mn  [32] ARABIC TURNED DAMMA BELOW..DEVANAGARI SIGN ANUSVARA
-  0x093A === code || // Mn       DEVANAGARI VOWEL SIGN OE
-  0x093C === code || // Mn       DEVANAGARI SIGN NUKTA
-  0x0941 <= code && code <= 0x0948 || // Mn   [8] DEVANAGARI VOWEL SIGN U..DEVANAGARI VOWEL SIGN AI
-  0x094D === code || // Mn       DEVANAGARI SIGN VIRAMA
-  0x0951 <= code && code <= 0x0957 || // Mn   [7] DEVANAGARI STRESS SIGN UDATTA..DEVANAGARI VOWEL SIGN UUE
-  0x0962 <= code && code <= 0x0963 || // Mn   [2] DEVANAGARI VOWEL SIGN VOCALIC L..DEVANAGARI VOWEL SIGN VOCALIC LL
-  0x0981 === code || // Mn       BENGALI SIGN CANDRABINDU
-  0x09BC === code || // Mn       BENGALI SIGN NUKTA
-  0x09BE === code || // Mc       BENGALI VOWEL SIGN AA
-  0x09C1 <= code && code <= 0x09C4 || // Mn   [4] BENGALI VOWEL SIGN U..BENGALI VOWEL SIGN VOCALIC RR
-  0x09CD === code || // Mn       BENGALI SIGN VIRAMA
-  0x09D7 === code || // Mc       BENGALI AU LENGTH MARK
-  0x09E2 <= code && code <= 0x09E3 || // Mn   [2] BENGALI VOWEL SIGN VOCALIC L..BENGALI VOWEL SIGN VOCALIC LL
-  0x0A01 <= code && code <= 0x0A02 || // Mn   [2] GURMUKHI SIGN ADAK BINDI..GURMUKHI SIGN BINDI
-  0x0A3C === code || // Mn       GURMUKHI SIGN NUKTA
-  0x0A41 <= code && code <= 0x0A42 || // Mn   [2] GURMUKHI VOWEL SIGN U..GURMUKHI VOWEL SIGN UU
-  0x0A47 <= code && code <= 0x0A48 || // Mn   [2] GURMUKHI VOWEL SIGN EE..GURMUKHI VOWEL SIGN AI
-  0x0A4B <= code && code <= 0x0A4D || // Mn   [3] GURMUKHI VOWEL SIGN OO..GURMUKHI SIGN VIRAMA
-  0x0A51 === code || // Mn       GURMUKHI SIGN UDAAT
-  0x0A70 <= code && code <= 0x0A71 || // Mn   [2] GURMUKHI TIPPI..GURMUKHI ADDAK
-  0x0A75 === code || // Mn       GURMUKHI SIGN YAKASH
-  0x0A81 <= code && code <= 0x0A82 || // Mn   [2] GUJARATI SIGN CANDRABINDU..GUJARATI SIGN ANUSVARA
-  0x0ABC === code || // Mn       GUJARATI SIGN NUKTA
-  0x0AC1 <= code && code <= 0x0AC5 || // Mn   [5] GUJARATI VOWEL SIGN U..GUJARATI VOWEL SIGN CANDRA E
-  0x0AC7 <= code && code <= 0x0AC8 || // Mn   [2] GUJARATI VOWEL SIGN E..GUJARATI VOWEL SIGN AI
-  0x0ACD === code || // Mn       GUJARATI SIGN VIRAMA
-  0x0AE2 <= code && code <= 0x0AE3 || // Mn   [2] GUJARATI VOWEL SIGN VOCALIC L..GUJARATI VOWEL SIGN VOCALIC LL
-  0x0B01 === code || // Mn       ORIYA SIGN CANDRABINDU
-  0x0B3C === code || // Mn       ORIYA SIGN NUKTA
-  0x0B3E === code || // Mc       ORIYA VOWEL SIGN AA
-  0x0B3F === code || // Mn       ORIYA VOWEL SIGN I
-  0x0B41 <= code && code <= 0x0B44 || // Mn   [4] ORIYA VOWEL SIGN U..ORIYA VOWEL SIGN VOCALIC RR
-  0x0B4D === code || // Mn       ORIYA SIGN VIRAMA
-  0x0B56 === code || // Mn       ORIYA AI LENGTH MARK
-  0x0B57 === code || // Mc       ORIYA AU LENGTH MARK
-  0x0B62 <= code && code <= 0x0B63 || // Mn   [2] ORIYA VOWEL SIGN VOCALIC L..ORIYA VOWEL SIGN VOCALIC LL
-  0x0B82 === code || // Mn       TAMIL SIGN ANUSVARA
-  0x0BBE === code || // Mc       TAMIL VOWEL SIGN AA
-  0x0BC0 === code || // Mn       TAMIL VOWEL SIGN II
-  0x0BCD === code || // Mn       TAMIL SIGN VIRAMA
-  0x0BD7 === code || // Mc       TAMIL AU LENGTH MARK
-  0x0C00 === code || // Mn       TELUGU SIGN COMBINING CANDRABINDU ABOVE
-  0x0C3E <= code && code <= 0x0C40 || // Mn   [3] TELUGU VOWEL SIGN AA..TELUGU VOWEL SIGN II
-  0x0C46 <= code && code <= 0x0C48 || // Mn   [3] TELUGU VOWEL SIGN E..TELUGU VOWEL SIGN AI
-  0x0C4A <= code && code <= 0x0C4D || // Mn   [4] TELUGU VOWEL SIGN O..TELUGU SIGN VIRAMA
-  0x0C55 <= code && code <= 0x0C56 || // Mn   [2] TELUGU LENGTH MARK..TELUGU AI LENGTH MARK
-  0x0C62 <= code && code <= 0x0C63 || // Mn   [2] TELUGU VOWEL SIGN VOCALIC L..TELUGU VOWEL SIGN VOCALIC LL
-  0x0C81 === code || // Mn       KANNADA SIGN CANDRABINDU
-  0x0CBC === code || // Mn       KANNADA SIGN NUKTA
-  0x0CBF === code || // Mn       KANNADA VOWEL SIGN I
-  0x0CC2 === code || // Mc       KANNADA VOWEL SIGN UU
-  0x0CC6 === code || // Mn       KANNADA VOWEL SIGN E
-  0x0CCC <= code && code <= 0x0CCD || // Mn   [2] KANNADA VOWEL SIGN AU..KANNADA SIGN VIRAMA
-  0x0CD5 <= code && code <= 0x0CD6 || // Mc   [2] KANNADA LENGTH MARK..KANNADA AI LENGTH MARK
-  0x0CE2 <= code && code <= 0x0CE3 || // Mn   [2] KANNADA VOWEL SIGN VOCALIC L..KANNADA VOWEL SIGN VOCALIC LL
-  0x0D01 === code || // Mn       MALAYALAM SIGN CANDRABINDU
-  0x0D3E === code || // Mc       MALAYALAM VOWEL SIGN AA
-  0x0D41 <= code && code <= 0x0D44 || // Mn   [4] MALAYALAM VOWEL SIGN U..MALAYALAM VOWEL SIGN VOCALIC RR
-  0x0D4D === code || // Mn       MALAYALAM SIGN VIRAMA
-  0x0D57 === code || // Mc       MALAYALAM AU LENGTH MARK
-  0x0D62 <= code && code <= 0x0D63 || // Mn   [2] MALAYALAM VOWEL SIGN VOCALIC L..MALAYALAM VOWEL SIGN VOCALIC LL
-  0x0DCA === code || // Mn       SINHALA SIGN AL-LAKUNA
-  0x0DCF === code || // Mc       SINHALA VOWEL SIGN AELA-PILLA
-  0x0DD2 <= code && code <= 0x0DD4 || // Mn   [3] SINHALA VOWEL SIGN KETTI IS-PILLA..SINHALA VOWEL SIGN KETTI PAA-PILLA
-  0x0DD6 === code || // Mn       SINHALA VOWEL SIGN DIGA PAA-PILLA
-  0x0DDF === code || // Mc       SINHALA VOWEL SIGN GAYANUKITTA
-  0x0E31 === code || // Mn       THAI CHARACTER MAI HAN-AKAT
-  0x0E34 <= code && code <= 0x0E3A || // Mn   [7] THAI CHARACTER SARA I..THAI CHARACTER PHINTHU
-  0x0E47 <= code && code <= 0x0E4E || // Mn   [8] THAI CHARACTER MAITAIKHU..THAI CHARACTER YAMAKKAN
-  0x0EB1 === code || // Mn       LAO VOWEL SIGN MAI KAN
-  0x0EB4 <= code && code <= 0x0EB9 || // Mn   [6] LAO VOWEL SIGN I..LAO VOWEL SIGN UU
-  0x0EBB <= code && code <= 0x0EBC || // Mn   [2] LAO VOWEL SIGN MAI KON..LAO SEMIVOWEL SIGN LO
-  0x0EC8 <= code && code <= 0x0ECD || // Mn   [6] LAO TONE MAI EK..LAO NIGGAHITA
-  0x0F18 <= code && code <= 0x0F19 || // Mn   [2] TIBETAN ASTROLOGICAL SIGN -KHYUD PA..TIBETAN ASTROLOGICAL SIGN SDONG TSHUGS
-  0x0F35 === code || // Mn       TIBETAN MARK NGAS BZUNG NYI ZLA
-  0x0F37 === code || // Mn       TIBETAN MARK NGAS BZUNG SGOR RTAGS
-  0x0F39 === code || // Mn       TIBETAN MARK TSA -PHRU
-  0x0F71 <= code && code <= 0x0F7E || // Mn  [14] TIBETAN VOWEL SIGN AA..TIBETAN SIGN RJES SU NGA RO
-  0x0F80 <= code && code <= 0x0F84 || // Mn   [5] TIBETAN VOWEL SIGN REVERSED I..TIBETAN MARK HALANTA
-  0x0F86 <= code && code <= 0x0F87 || // Mn   [2] TIBETAN SIGN LCI RTAGS..TIBETAN SIGN YANG RTAGS
-  0x0F8D <= code && code <= 0x0F97 || // Mn  [11] TIBETAN SUBJOINED SIGN LCE TSA CAN..TIBETAN SUBJOINED LETTER JA
-  0x0F99 <= code && code <= 0x0FBC || // Mn  [36] TIBETAN SUBJOINED LETTER NYA..TIBETAN SUBJOINED LETTER FIXED-FORM RA
-  0x0FC6 === code || // Mn       TIBETAN SYMBOL PADMA GDAN
-  0x102D <= code && code <= 0x1030 || // Mn   [4] MYANMAR VOWEL SIGN I..MYANMAR VOWEL SIGN UU
-  0x1032 <= code && code <= 0x1037 || // Mn   [6] MYANMAR VOWEL SIGN AI..MYANMAR SIGN DOT BELOW
-  0x1039 <= code && code <= 0x103A || // Mn   [2] MYANMAR SIGN VIRAMA..MYANMAR SIGN ASAT
-  0x103D <= code && code <= 0x103E || // Mn   [2] MYANMAR CONSONANT SIGN MEDIAL WA..MYANMAR CONSONANT SIGN MEDIAL HA
-  0x1058 <= code && code <= 0x1059 || // Mn   [2] MYANMAR VOWEL SIGN VOCALIC L..MYANMAR VOWEL SIGN VOCALIC LL
-  0x105E <= code && code <= 0x1060 || // Mn   [3] MYANMAR CONSONANT SIGN MON MEDIAL NA..MYANMAR CONSONANT SIGN MON MEDIAL LA
-  0x1071 <= code && code <= 0x1074 || // Mn   [4] MYANMAR VOWEL SIGN GEBA KAREN I..MYANMAR VOWEL SIGN KAYAH EE
-  0x1082 === code || // Mn       MYANMAR CONSONANT SIGN SHAN MEDIAL WA
-  0x1085 <= code && code <= 0x1086 || // Mn   [2] MYANMAR VOWEL SIGN SHAN E ABOVE..MYANMAR VOWEL SIGN SHAN FINAL Y
-  0x108D === code || // Mn       MYANMAR SIGN SHAN COUNCIL EMPHATIC TONE
-  0x109D === code || // Mn       MYANMAR VOWEL SIGN AITON AI
-  0x135D <= code && code <= 0x135F || // Mn   [3] ETHIOPIC COMBINING GEMINATION AND VOWEL LENGTH MARK..ETHIOPIC COMBINING GEMINATION MARK
-  0x1712 <= code && code <= 0x1714 || // Mn   [3] TAGALOG VOWEL SIGN I..TAGALOG SIGN VIRAMA
-  0x1732 <= code && code <= 0x1734 || // Mn   [3] HANUNOO VOWEL SIGN I..HANUNOO SIGN PAMUDPOD
-  0x1752 <= code && code <= 0x1753 || // Mn   [2] BUHID VOWEL SIGN I..BUHID VOWEL SIGN U
-  0x1772 <= code && code <= 0x1773 || // Mn   [2] TAGBANWA VOWEL SIGN I..TAGBANWA VOWEL SIGN U
-  0x17B4 <= code && code <= 0x17B5 || // Mn   [2] KHMER VOWEL INHERENT AQ..KHMER VOWEL INHERENT AA
-  0x17B7 <= code && code <= 0x17BD || // Mn   [7] KHMER VOWEL SIGN I..KHMER VOWEL SIGN UA
-  0x17C6 === code || // Mn       KHMER SIGN NIKAHIT
-  0x17C9 <= code && code <= 0x17D3 || // Mn  [11] KHMER SIGN MUUSIKATOAN..KHMER SIGN BATHAMASAT
-  0x17DD === code || // Mn       KHMER SIGN ATTHACAN
-  0x180B <= code && code <= 0x180D || // Mn   [3] MONGOLIAN FREE VARIATION SELECTOR ONE..MONGOLIAN FREE VARIATION SELECTOR THREE
-  0x18A9 === code || // Mn       MONGOLIAN LETTER ALI GALI DAGALGA
-  0x1920 <= code && code <= 0x1922 || // Mn   [3] LIMBU VOWEL SIGN A..LIMBU VOWEL SIGN U
-  0x1927 <= code && code <= 0x1928 || // Mn   [2] LIMBU VOWEL SIGN E..LIMBU VOWEL SIGN O
-  0x1932 === code || // Mn       LIMBU SMALL LETTER ANUSVARA
-  0x1939 <= code && code <= 0x193B || // Mn   [3] LIMBU SIGN MUKPHRENG..LIMBU SIGN SA-I
-  0x1A17 <= code && code <= 0x1A18 || // Mn   [2] BUGINESE VOWEL SIGN I..BUGINESE VOWEL SIGN U
-  0x1A1B === code || // Mn       BUGINESE VOWEL SIGN AE
-  0x1A56 === code || // Mn       TAI THAM CONSONANT SIGN MEDIAL LA
-  0x1A58 <= code && code <= 0x1A5E || // Mn   [7] TAI THAM SIGN MAI KANG LAI..TAI THAM CONSONANT SIGN SA
-  0x1A60 === code || // Mn       TAI THAM SIGN SAKOT
-  0x1A62 === code || // Mn       TAI THAM VOWEL SIGN MAI SAT
-  0x1A65 <= code && code <= 0x1A6C || // Mn   [8] TAI THAM VOWEL SIGN I..TAI THAM VOWEL SIGN OA BELOW
-  0x1A73 <= code && code <= 0x1A7C || // Mn  [10] TAI THAM VOWEL SIGN OA ABOVE..TAI THAM SIGN KHUEN-LUE KARAN
-  0x1A7F === code || // Mn       TAI THAM COMBINING CRYPTOGRAMMIC DOT
-  0x1AB0 <= code && code <= 0x1ABD || // Mn  [14] COMBINING DOUBLED CIRCUMFLEX ACCENT..COMBINING PARENTHESES BELOW
-  0x1ABE === code || // Me       COMBINING PARENTHESES OVERLAY
-  0x1B00 <= code && code <= 0x1B03 || // Mn   [4] BALINESE SIGN ULU RICEM..BALINESE SIGN SURANG
-  0x1B34 === code || // Mn       BALINESE SIGN REREKAN
-  0x1B36 <= code && code <= 0x1B3A || // Mn   [5] BALINESE VOWEL SIGN ULU..BALINESE VOWEL SIGN RA REPA
-  0x1B3C === code || // Mn       BALINESE VOWEL SIGN LA LENGA
-  0x1B42 === code || // Mn       BALINESE VOWEL SIGN PEPET
-  0x1B6B <= code && code <= 0x1B73 || // Mn   [9] BALINESE MUSICAL SYMBOL COMBINING TEGEH..BALINESE MUSICAL SYMBOL COMBINING GONG
-  0x1B80 <= code && code <= 0x1B81 || // Mn   [2] SUNDANESE SIGN PANYECEK..SUNDANESE SIGN PANGLAYAR
-  0x1BA2 <= code && code <= 0x1BA5 || // Mn   [4] SUNDANESE CONSONANT SIGN PANYAKRA..SUNDANESE VOWEL SIGN PANYUKU
-  0x1BA8 <= code && code <= 0x1BA9 || // Mn   [2] SUNDANESE VOWEL SIGN PAMEPET..SUNDANESE VOWEL SIGN PANEULEUNG
-  0x1BAB <= code && code <= 0x1BAD || // Mn   [3] SUNDANESE SIGN VIRAMA..SUNDANESE CONSONANT SIGN PASANGAN WA
-  0x1BE6 === code || // Mn       BATAK SIGN TOMPI
-  0x1BE8 <= code && code <= 0x1BE9 || // Mn   [2] BATAK VOWEL SIGN PAKPAK E..BATAK VOWEL SIGN EE
-  0x1BED === code || // Mn       BATAK VOWEL SIGN KARO O
-  0x1BEF <= code && code <= 0x1BF1 || // Mn   [3] BATAK VOWEL SIGN U FOR SIMALUNGUN SA..BATAK CONSONANT SIGN H
-  0x1C2C <= code && code <= 0x1C33 || // Mn   [8] LEPCHA VOWEL SIGN E..LEPCHA CONSONANT SIGN T
-  0x1C36 <= code && code <= 0x1C37 || // Mn   [2] LEPCHA SIGN RAN..LEPCHA SIGN NUKTA
-  0x1CD0 <= code && code <= 0x1CD2 || // Mn   [3] VEDIC TONE KARSHANA..VEDIC TONE PRENKHA
-  0x1CD4 <= code && code <= 0x1CE0 || // Mn  [13] VEDIC SIGN YAJURVEDIC MIDLINE SVARITA..VEDIC TONE RIGVEDIC KASHMIRI INDEPENDENT SVARITA
-  0x1CE2 <= code && code <= 0x1CE8 || // Mn   [7] VEDIC SIGN VISARGA SVARITA..VEDIC SIGN VISARGA ANUDATTA WITH TAIL
-  0x1CED === code || // Mn       VEDIC SIGN TIRYAK
-  0x1CF4 === code || // Mn       VEDIC TONE CANDRA ABOVE
-  0x1CF8 <= code && code <= 0x1CF9 || // Mn   [2] VEDIC TONE RING ABOVE..VEDIC TONE DOUBLE RING ABOVE
-  0x1DC0 <= code && code <= 0x1DF5 || // Mn  [54] COMBINING DOTTED GRAVE ACCENT..COMBINING UP TACK ABOVE
-  0x1DFC <= code && code <= 0x1DFF || // Mn   [4] COMBINING DOUBLE INVERTED BREVE BELOW..COMBINING RIGHT ARROWHEAD AND DOWN ARROWHEAD BELOW
-  0x200C <= code && code <= 0x200D || // Cf   [2] ZERO WIDTH NON-JOINER..ZERO WIDTH JOINER
-  0x20D0 <= code && code <= 0x20DC || // Mn  [13] COMBINING LEFT HARPOON ABOVE..COMBINING FOUR DOTS ABOVE
-  0x20DD <= code && code <= 0x20E0 || // Me   [4] COMBINING ENCLOSING CIRCLE..COMBINING ENCLOSING CIRCLE BACKSLASH
-  0x20E1 === code || // Mn       COMBINING LEFT RIGHT ARROW ABOVE
-  0x20E2 <= code && code <= 0x20E4 || // Me   [3] COMBINING ENCLOSING SCREEN..COMBINING ENCLOSING UPWARD POINTING TRIANGLE
-  0x20E5 <= code && code <= 0x20F0 || // Mn  [12] COMBINING REVERSE SOLIDUS OVERLAY..COMBINING ASTERISK ABOVE
-  0x2CEF <= code && code <= 0x2CF1 || // Mn   [3] COPTIC COMBINING NI ABOVE..COPTIC COMBINING SPIRITUS LENIS
-  0x2D7F === code || // Mn       TIFINAGH CONSONANT JOINER
-  0x2DE0 <= code && code <= 0x2DFF || // Mn  [32] COMBINING CYRILLIC LETTER BE..COMBINING CYRILLIC LETTER IOTIFIED BIG YUS
-  0x302A <= code && code <= 0x302D || // Mn   [4] IDEOGRAPHIC LEVEL TONE MARK..IDEOGRAPHIC ENTERING TONE MARK
-  0x302E <= code && code <= 0x302F || // Mc   [2] HANGUL SINGLE DOT TONE MARK..HANGUL DOUBLE DOT TONE MARK
-  0x3099 <= code && code <= 0x309A || // Mn   [2] COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK..COMBINING KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
-  0xA66F === code || // Mn       COMBINING CYRILLIC VZMET
-  0xA670 <= code && code <= 0xA672 || // Me   [3] COMBINING CYRILLIC TEN MILLIONS SIGN..COMBINING CYRILLIC THOUSAND MILLIONS SIGN
-  0xA674 <= code && code <= 0xA67D || // Mn  [10] COMBINING CYRILLIC LETTER UKRAINIAN IE..COMBINING CYRILLIC PAYEROK
-  0xA69E <= code && code <= 0xA69F || // Mn   [2] COMBINING CYRILLIC LETTER EF..COMBINING CYRILLIC LETTER IOTIFIED E
-  0xA6F0 <= code && code <= 0xA6F1 || // Mn   [2] BAMUM COMBINING MARK KOQNDON..BAMUM COMBINING MARK TUKWENTIS
-  0xA802 === code || // Mn       SYLOTI NAGRI SIGN DVISVARA
-  0xA806 === code || // Mn       SYLOTI NAGRI SIGN HASANTA
-  0xA80B === code || // Mn       SYLOTI NAGRI SIGN ANUSVARA
-  0xA825 <= code && code <= 0xA826 || // Mn   [2] SYLOTI NAGRI VOWEL SIGN U..SYLOTI NAGRI VOWEL SIGN E
-  0xA8C4 === code || // Mn       SAURASHTRA SIGN VIRAMA
-  0xA8E0 <= code && code <= 0xA8F1 || // Mn  [18] COMBINING DEVANAGARI DIGIT ZERO..COMBINING DEVANAGARI SIGN AVAGRAHA
-  0xA926 <= code && code <= 0xA92D || // Mn   [8] KAYAH LI VOWEL UE..KAYAH LI TONE CALYA PLOPHU
-  0xA947 <= code && code <= 0xA951 || // Mn  [11] REJANG VOWEL SIGN I..REJANG CONSONANT SIGN R
-  0xA980 <= code && code <= 0xA982 || // Mn   [3] JAVANESE SIGN PANYANGGA..JAVANESE SIGN LAYAR
-  0xA9B3 === code || // Mn       JAVANESE SIGN CECAK TELU
-  0xA9B6 <= code && code <= 0xA9B9 || // Mn   [4] JAVANESE VOWEL SIGN WULU..JAVANESE VOWEL SIGN SUKU MENDUT
-  0xA9BC === code || // Mn       JAVANESE VOWEL SIGN PEPET
-  0xA9E5 === code || // Mn       MYANMAR SIGN SHAN SAW
-  0xAA29 <= code && code <= 0xAA2E || // Mn   [6] CHAM VOWEL SIGN AA..CHAM VOWEL SIGN OE
-  0xAA31 <= code && code <= 0xAA32 || // Mn   [2] CHAM VOWEL SIGN AU..CHAM VOWEL SIGN UE
-  0xAA35 <= code && code <= 0xAA36 || // Mn   [2] CHAM CONSONANT SIGN LA..CHAM CONSONANT SIGN WA
-  0xAA43 === code || // Mn       CHAM CONSONANT SIGN FINAL NG
-  0xAA4C === code || // Mn       CHAM CONSONANT SIGN FINAL M
-  0xAA7C === code || // Mn       MYANMAR SIGN TAI LAING TONE-2
-  0xAAB0 === code || // Mn       TAI VIET MAI KANG
-  0xAAB2 <= code && code <= 0xAAB4 || // Mn   [3] TAI VIET VOWEL I..TAI VIET VOWEL U
-  0xAAB7 <= code && code <= 0xAAB8 || // Mn   [2] TAI VIET MAI KHIT..TAI VIET VOWEL IA
-  0xAABE <= code && code <= 0xAABF || // Mn   [2] TAI VIET VOWEL AM..TAI VIET TONE MAI EK
-  0xAAC1 === code || // Mn       TAI VIET TONE MAI THO
-  0xAAEC <= code && code <= 0xAAED || // Mn   [2] MEETEI MAYEK VOWEL SIGN UU..MEETEI MAYEK VOWEL SIGN AAI
-  0xAAF6 === code || // Mn       MEETEI MAYEK VIRAMA
-  0xABE5 === code || // Mn       MEETEI MAYEK VOWEL SIGN ANAP
-  0xABE8 === code || // Mn       MEETEI MAYEK VOWEL SIGN UNAP
-  0xABED === code || // Mn       MEETEI MAYEK APUN IYEK
-  0xFB1E === code || // Mn       HEBREW POINT JUDEO-SPANISH VARIKA
-  0xFE00 <= code && code <= 0xFE0F || // Mn  [16] VARIATION SELECTOR-1..VARIATION SELECTOR-16
-  0xFE20 <= code && code <= 0xFE2F || // Mn  [16] COMBINING LIGATURE LEFT HALF..COMBINING CYRILLIC TITLO RIGHT HALF
-  0xFF9E <= code && code <= 0xFF9F || // Lm   [2] HALFWIDTH KATAKANA VOICED SOUND MARK..HALFWIDTH KATAKANA SEMI-VOICED SOUND MARK
-  0x101FD === code || // Mn       PHAISTOS DISC SIGN COMBINING OBLIQUE STROKE
-  0x102E0 === code || // Mn       COPTIC EPACT THOUSANDS MARK
-  0x10376 <= code && code <= 0x1037A || // Mn   [5] COMBINING OLD PERMIC LETTER AN..COMBINING OLD PERMIC LETTER SII
-  0x10A01 <= code && code <= 0x10A03 || // Mn   [3] KHAROSHTHI VOWEL SIGN I..KHAROSHTHI VOWEL SIGN VOCALIC R
-  0x10A05 <= code && code <= 0x10A06 || // Mn   [2] KHAROSHTHI VOWEL SIGN E..KHAROSHTHI VOWEL SIGN O
-  0x10A0C <= code && code <= 0x10A0F || // Mn   [4] KHAROSHTHI VOWEL LENGTH MARK..KHAROSHTHI SIGN VISARGA
-  0x10A38 <= code && code <= 0x10A3A || // Mn   [3] KHAROSHTHI SIGN BAR ABOVE..KHAROSHTHI SIGN DOT BELOW
-  0x10A3F === code || // Mn       KHAROSHTHI VIRAMA
-  0x10AE5 <= code && code <= 0x10AE6 || // Mn   [2] MANICHAEAN ABBREVIATION MARK ABOVE..MANICHAEAN ABBREVIATION MARK BELOW
-  0x11001 === code || // Mn       BRAHMI SIGN ANUSVARA
-  0x11038 <= code && code <= 0x11046 || // Mn  [15] BRAHMI VOWEL SIGN AA..BRAHMI VIRAMA
-  0x1107F <= code && code <= 0x11081 || // Mn   [3] BRAHMI NUMBER JOINER..KAITHI SIGN ANUSVARA
-  0x110B3 <= code && code <= 0x110B6 || // Mn   [4] KAITHI VOWEL SIGN U..KAITHI VOWEL SIGN AI
-  0x110B9 <= code && code <= 0x110BA || // Mn   [2] KAITHI SIGN VIRAMA..KAITHI SIGN NUKTA
-  0x11100 <= code && code <= 0x11102 || // Mn   [3] CHAKMA SIGN CANDRABINDU..CHAKMA SIGN VISARGA
-  0x11127 <= code && code <= 0x1112B || // Mn   [5] CHAKMA VOWEL SIGN A..CHAKMA VOWEL SIGN UU
-  0x1112D <= code && code <= 0x11134 || // Mn   [8] CHAKMA VOWEL SIGN AI..CHAKMA MAAYYAA
-  0x11173 === code || // Mn       MAHAJANI SIGN NUKTA
-  0x11180 <= code && code <= 0x11181 || // Mn   [2] SHARADA SIGN CANDRABINDU..SHARADA SIGN ANUSVARA
-  0x111B6 <= code && code <= 0x111BE || // Mn   [9] SHARADA VOWEL SIGN U..SHARADA VOWEL SIGN O
-  0x111CA <= code && code <= 0x111CC || // Mn   [3] SHARADA SIGN NUKTA..SHARADA EXTRA SHORT VOWEL MARK
-  0x1122F <= code && code <= 0x11231 || // Mn   [3] KHOJKI VOWEL SIGN U..KHOJKI VOWEL SIGN AI
-  0x11234 === code || // Mn       KHOJKI SIGN ANUSVARA
-  0x11236 <= code && code <= 0x11237 || // Mn   [2] KHOJKI SIGN NUKTA..KHOJKI SIGN SHADDA
-  0x112DF === code || // Mn       KHUDAWADI SIGN ANUSVARA
-  0x112E3 <= code && code <= 0x112EA || // Mn   [8] KHUDAWADI VOWEL SIGN U..KHUDAWADI SIGN VIRAMA
-  0x11300 <= code && code <= 0x11301 || // Mn   [2] GRANTHA SIGN COMBINING ANUSVARA ABOVE..GRANTHA SIGN CANDRABINDU
-  0x1133C === code || // Mn       GRANTHA SIGN NUKTA
-  0x1133E === code || // Mc       GRANTHA VOWEL SIGN AA
-  0x11340 === code || // Mn       GRANTHA VOWEL SIGN II
-  0x11357 === code || // Mc       GRANTHA AU LENGTH MARK
-  0x11366 <= code && code <= 0x1136C || // Mn   [7] COMBINING GRANTHA DIGIT ZERO..COMBINING GRANTHA DIGIT SIX
-  0x11370 <= code && code <= 0x11374 || // Mn   [5] COMBINING GRANTHA LETTER A..COMBINING GRANTHA LETTER PA
-  0x114B0 === code || // Mc       TIRHUTA VOWEL SIGN AA
-  0x114B3 <= code && code <= 0x114B8 || // Mn   [6] TIRHUTA VOWEL SIGN U..TIRHUTA VOWEL SIGN VOCALIC LL
-  0x114BA === code || // Mn       TIRHUTA VOWEL SIGN SHORT E
-  0x114BD === code || // Mc       TIRHUTA VOWEL SIGN SHORT O
-  0x114BF <= code && code <= 0x114C0 || // Mn   [2] TIRHUTA SIGN CANDRABINDU..TIRHUTA SIGN ANUSVARA
-  0x114C2 <= code && code <= 0x114C3 || // Mn   [2] TIRHUTA SIGN VIRAMA..TIRHUTA SIGN NUKTA
-  0x115AF === code || // Mc       SIDDHAM VOWEL SIGN AA
-  0x115B2 <= code && code <= 0x115B5 || // Mn   [4] SIDDHAM VOWEL SIGN U..SIDDHAM VOWEL SIGN VOCALIC RR
-  0x115BC <= code && code <= 0x115BD || // Mn   [2] SIDDHAM SIGN CANDRABINDU..SIDDHAM SIGN ANUSVARA
-  0x115BF <= code && code <= 0x115C0 || // Mn   [2] SIDDHAM SIGN VIRAMA..SIDDHAM SIGN NUKTA
-  0x115DC <= code && code <= 0x115DD || // Mn   [2] SIDDHAM VOWEL SIGN ALTERNATE U..SIDDHAM VOWEL SIGN ALTERNATE UU
-  0x11633 <= code && code <= 0x1163A || // Mn   [8] MODI VOWEL SIGN U..MODI VOWEL SIGN AI
-  0x1163D === code || // Mn       MODI SIGN ANUSVARA
-  0x1163F <= code && code <= 0x11640 || // Mn   [2] MODI SIGN VIRAMA..MODI SIGN ARDHACANDRA
-  0x116AB === code || // Mn       TAKRI SIGN ANUSVARA
-  0x116AD === code || // Mn       TAKRI VOWEL SIGN AA
-  0x116B0 <= code && code <= 0x116B5 || // Mn   [6] TAKRI VOWEL SIGN U..TAKRI VOWEL SIGN AU
-  0x116B7 === code || // Mn       TAKRI SIGN NUKTA
-  0x1171D <= code && code <= 0x1171F || // Mn   [3] AHOM CONSONANT SIGN MEDIAL LA..AHOM CONSONANT SIGN MEDIAL LIGATING RA
-  0x11722 <= code && code <= 0x11725 || // Mn   [4] AHOM VOWEL SIGN I..AHOM VOWEL SIGN UU
-  0x11727 <= code && code <= 0x1172B || // Mn   [5] AHOM VOWEL SIGN AW..AHOM SIGN KILLER
-  0x16AF0 <= code && code <= 0x16AF4 || // Mn   [5] BASSA VAH COMBINING HIGH TONE..BASSA VAH COMBINING HIGH-LOW TONE
-  0x16B30 <= code && code <= 0x16B36 || // Mn   [7] PAHAWH HMONG MARK CIM TUB..PAHAWH HMONG MARK CIM TAUM
-  0x16F8F <= code && code <= 0x16F92 || // Mn   [4] MIAO TONE RIGHT..MIAO TONE BELOW
-  0x1BC9D <= code && code <= 0x1BC9E || // Mn   [2] DUPLOYAN THICK LETTER SELECTOR..DUPLOYAN DOUBLE MARK
-  0x1D165 === code || // Mc       MUSICAL SYMBOL COMBINING STEM
-  0x1D167 <= code && code <= 0x1D169 || // Mn   [3] MUSICAL SYMBOL COMBINING TREMOLO-1..MUSICAL SYMBOL COMBINING TREMOLO-3
-  0x1D16E <= code && code <= 0x1D172 || // Mc   [5] MUSICAL SYMBOL COMBINING FLAG-1..MUSICAL SYMBOL COMBINING FLAG-5
-  0x1D17B <= code && code <= 0x1D182 || // Mn   [8] MUSICAL SYMBOL COMBINING ACCENT..MUSICAL SYMBOL COMBINING LOURE
-  0x1D185 <= code && code <= 0x1D18B || // Mn   [7] MUSICAL SYMBOL COMBINING DOIT..MUSICAL SYMBOL COMBINING TRIPLE TONGUE
-  0x1D1AA <= code && code <= 0x1D1AD || // Mn   [4] MUSICAL SYMBOL COMBINING DOWN BOW..MUSICAL SYMBOL COMBINING SNAP PIZZICATO
-  0x1D242 <= code && code <= 0x1D244 || // Mn   [3] COMBINING GREEK MUSICAL TRISEME..COMBINING GREEK MUSICAL PENTASEME
-  0x1DA00 <= code && code <= 0x1DA36 || // Mn  [55] SIGNWRITING HEAD RIM..SIGNWRITING AIR SUCKING IN
-  0x1DA3B <= code && code <= 0x1DA6C || // Mn  [50] SIGNWRITING MOUTH CLOSED NEUTRAL..SIGNWRITING EXCITEMENT
-  0x1DA75 === code || // Mn       SIGNWRITING UPPER BODY TILTING FROM HIP JOINTS
-  0x1DA84 === code || // Mn       SIGNWRITING LOCATION HEAD NECK
-  0x1DA9B <= code && code <= 0x1DA9F || // Mn   [5] SIGNWRITING FILL MODIFIER-2..SIGNWRITING FILL MODIFIER-6
-  0x1DAA1 <= code && code <= 0x1DAAF || // Mn  [15] SIGNWRITING ROTATION MODIFIER-2..SIGNWRITING ROTATION MODIFIER-16
-  0x1E8D0 <= code && code <= 0x1E8D6 || // Mn   [7] MENDE KIKAKUI COMBINING NUMBER TEENS..MENDE KIKAKUI COMBINING NUMBER MILLIONS
-  0xE0100 <= code && code <= 0xE01EF // Mn [240] VARIATION SELECTOR-17..VARIATION SELECTOR-256
-  ) {
-      return Extend;
-    }
-
-  if (0x1F1E6 <= code && code <= 0x1F1FF) // So  [26] REGIONAL INDICATOR SYMBOL LETTER A..REGIONAL INDICATOR SYMBOL LETTER Z
-    {
-      return Regional_Indicator;
-    }
-
-  if (0x1F3FB <= code && code <= 0x1F3FF) //EMOJI MODIFIER FITZPATRICK
-    {
-      return Skin_Tone;
-    }
-
-  if (0x0903 === code || // Mc       DEVANAGARI SIGN VISARGA
-  0x093B === code || // Mc       DEVANAGARI VOWEL SIGN OOE
-  0x093E <= code && code <= 0x0940 || // Mc   [3] DEVANAGARI VOWEL SIGN AA..DEVANAGARI VOWEL SIGN II
-  0x0949 <= code && code <= 0x094C || // Mc   [4] DEVANAGARI VOWEL SIGN CANDRA O..DEVANAGARI VOWEL SIGN AU
-  0x094E <= code && code <= 0x094F || // Mc   [2] DEVANAGARI VOWEL SIGN PRISHTHAMATRA E..DEVANAGARI VOWEL SIGN AW
-  0x0982 <= code && code <= 0x0983 || // Mc   [2] BENGALI SIGN ANUSVARA..BENGALI SIGN VISARGA
-  0x09BF <= code && code <= 0x09C0 || // Mc   [2] BENGALI VOWEL SIGN I..BENGALI VOWEL SIGN II
-  0x09C7 <= code && code <= 0x09C8 || // Mc   [2] BENGALI VOWEL SIGN E..BENGALI VOWEL SIGN AI
-  0x09CB <= code && code <= 0x09CC || // Mc   [2] BENGALI VOWEL SIGN O..BENGALI VOWEL SIGN AU
-  0x0A03 === code || // Mc       GURMUKHI SIGN VISARGA
-  0x0A3E <= code && code <= 0x0A40 || // Mc   [3] GURMUKHI VOWEL SIGN AA..GURMUKHI VOWEL SIGN II
-  0x0A83 === code || // Mc       GUJARATI SIGN VISARGA
-  0x0ABE <= code && code <= 0x0AC0 || // Mc   [3] GUJARATI VOWEL SIGN AA..GUJARATI VOWEL SIGN II
-  0x0AC9 === code || // Mc       GUJARATI VOWEL SIGN CANDRA O
-  0x0ACB <= code && code <= 0x0ACC || // Mc   [2] GUJARATI VOWEL SIGN O..GUJARATI VOWEL SIGN AU
-  0x0B02 <= code && code <= 0x0B03 || // Mc   [2] ORIYA SIGN ANUSVARA..ORIYA SIGN VISARGA
-  0x0B40 === code || // Mc       ORIYA VOWEL SIGN II
-  0x0B47 <= code && code <= 0x0B48 || // Mc   [2] ORIYA VOWEL SIGN E..ORIYA VOWEL SIGN AI
-  0x0B4B <= code && code <= 0x0B4C || // Mc   [2] ORIYA VOWEL SIGN O..ORIYA VOWEL SIGN AU
-  0x0BBF === code || // Mc       TAMIL VOWEL SIGN I
-  0x0BC1 <= code && code <= 0x0BC2 || // Mc   [2] TAMIL VOWEL SIGN U..TAMIL VOWEL SIGN UU
-  0x0BC6 <= code && code <= 0x0BC8 || // Mc   [3] TAMIL VOWEL SIGN E..TAMIL VOWEL SIGN AI
-  0x0BCA <= code && code <= 0x0BCC || // Mc   [3] TAMIL VOWEL SIGN O..TAMIL VOWEL SIGN AU
-  0x0C01 <= code && code <= 0x0C03 || // Mc   [3] TELUGU SIGN CANDRABINDU..TELUGU SIGN VISARGA
-  0x0C41 <= code && code <= 0x0C44 || // Mc   [4] TELUGU VOWEL SIGN U..TELUGU VOWEL SIGN VOCALIC RR
-  0x0C82 <= code && code <= 0x0C83 || // Mc   [2] KANNADA SIGN ANUSVARA..KANNADA SIGN VISARGA
-  0x0CBE === code || // Mc       KANNADA VOWEL SIGN AA
-  0x0CC0 <= code && code <= 0x0CC1 || // Mc   [2] KANNADA VOWEL SIGN II..KANNADA VOWEL SIGN U
-  0x0CC3 <= code && code <= 0x0CC4 || // Mc   [2] KANNADA VOWEL SIGN VOCALIC R..KANNADA VOWEL SIGN VOCALIC RR
-  0x0CC7 <= code && code <= 0x0CC8 || // Mc   [2] KANNADA VOWEL SIGN EE..KANNADA VOWEL SIGN AI
-  0x0CCA <= code && code <= 0x0CCB || // Mc   [2] KANNADA VOWEL SIGN O..KANNADA VOWEL SIGN OO
-  0x0D02 <= code && code <= 0x0D03 || // Mc   [2] MALAYALAM SIGN ANUSVARA..MALAYALAM SIGN VISARGA
-  0x0D3F <= code && code <= 0x0D40 || // Mc   [2] MALAYALAM VOWEL SIGN I..MALAYALAM VOWEL SIGN II
-  0x0D46 <= code && code <= 0x0D48 || // Mc   [3] MALAYALAM VOWEL SIGN E..MALAYALAM VOWEL SIGN AI
-  0x0D4A <= code && code <= 0x0D4C || // Mc   [3] MALAYALAM VOWEL SIGN O..MALAYALAM VOWEL SIGN AU
-  0x0D82 <= code && code <= 0x0D83 || // Mc   [2] SINHALA SIGN ANUSVARAYA..SINHALA SIGN VISARGAYA
-  0x0DD0 <= code && code <= 0x0DD1 || // Mc   [2] SINHALA VOWEL SIGN KETTI AEDA-PILLA..SINHALA VOWEL SIGN DIGA AEDA-PILLA
-  0x0DD8 <= code && code <= 0x0DDE || // Mc   [7] SINHALA VOWEL SIGN GAETTA-PILLA..SINHALA VOWEL SIGN KOMBUVA HAA GAYANUKITTA
-  0x0DF2 <= code && code <= 0x0DF3 || // Mc   [2] SINHALA VOWEL SIGN DIGA GAETTA-PILLA..SINHALA VOWEL SIGN DIGA GAYANUKITTA
-  0x0E33 === code || // Lo       THAI CHARACTER SARA AM
-  0x0EB3 === code || // Lo       LAO VOWEL SIGN AM
-  0x0F3E <= code && code <= 0x0F3F || // Mc   [2] TIBETAN SIGN YAR TSHES..TIBETAN SIGN MAR TSHES
-  0x0F7F === code || // Mc       TIBETAN SIGN RNAM BCAD
-  0x1031 === code || // Mc       MYANMAR VOWEL SIGN E
-  0x103B <= code && code <= 0x103C || // Mc   [2] MYANMAR CONSONANT SIGN MEDIAL YA..MYANMAR CONSONANT SIGN MEDIAL RA
-  0x1056 <= code && code <= 0x1057 || // Mc   [2] MYANMAR VOWEL SIGN VOCALIC R..MYANMAR VOWEL SIGN VOCALIC RR
-  0x1084 === code || // Mc       MYANMAR VOWEL SIGN SHAN E
-  0x17B6 === code || // Mc       KHMER VOWEL SIGN AA
-  0x17BE <= code && code <= 0x17C5 || // Mc   [8] KHMER VOWEL SIGN OE..KHMER VOWEL SIGN AU
-  0x17C7 <= code && code <= 0x17C8 || // Mc   [2] KHMER SIGN REAHMUK..KHMER SIGN YUUKALEAPINTU
-  0x1923 <= code && code <= 0x1926 || // Mc   [4] LIMBU VOWEL SIGN EE..LIMBU VOWEL SIGN AU
-  0x1929 <= code && code <= 0x192B || // Mc   [3] LIMBU SUBJOINED LETTER YA..LIMBU SUBJOINED LETTER WA
-  0x1930 <= code && code <= 0x1931 || // Mc   [2] LIMBU SMALL LETTER KA..LIMBU SMALL LETTER NGA
-  0x1933 <= code && code <= 0x1938 || // Mc   [6] LIMBU SMALL LETTER TA..LIMBU SMALL LETTER LA
-  0x1A19 <= code && code <= 0x1A1A || // Mc   [2] BUGINESE VOWEL SIGN E..BUGINESE VOWEL SIGN O
-  0x1A55 === code || // Mc       TAI THAM CONSONANT SIGN MEDIAL RA
-  0x1A57 === code || // Mc       TAI THAM CONSONANT SIGN LA TANG LAI
-  0x1A6D <= code && code <= 0x1A72 || // Mc   [6] TAI THAM VOWEL SIGN OY..TAI THAM VOWEL SIGN THAM AI
-  0x1B04 === code || // Mc       BALINESE SIGN BISAH
-  0x1B35 === code || // Mc       BALINESE VOWEL SIGN TEDUNG
-  0x1B3B === code || // Mc       BALINESE VOWEL SIGN RA REPA TEDUNG
-  0x1B3D <= code && code <= 0x1B41 || // Mc   [5] BALINESE VOWEL SIGN LA LENGA TEDUNG..BALINESE VOWEL SIGN TALING REPA TEDUNG
-  0x1B43 <= code && code <= 0x1B44 || // Mc   [2] BALINESE VOWEL SIGN PEPET TEDUNG..BALINESE ADEG ADEG
-  0x1B82 === code || // Mc       SUNDANESE SIGN PANGWISAD
-  0x1BA1 === code || // Mc       SUNDANESE CONSONANT SIGN PAMINGKAL
-  0x1BA6 <= code && code <= 0x1BA7 || // Mc   [2] SUNDANESE VOWEL SIGN PANAELAENG..SUNDANESE VOWEL SIGN PANOLONG
-  0x1BAA === code || // Mc       SUNDANESE SIGN PAMAAEH
-  0x1BE7 === code || // Mc       BATAK VOWEL SIGN E
-  0x1BEA <= code && code <= 0x1BEC || // Mc   [3] BATAK VOWEL SIGN I..BATAK VOWEL SIGN O
-  0x1BEE === code || // Mc       BATAK VOWEL SIGN U
-  0x1BF2 <= code && code <= 0x1BF3 || // Mc   [2] BATAK PANGOLAT..BATAK PANONGONAN
-  0x1C24 <= code && code <= 0x1C2B || // Mc   [8] LEPCHA SUBJOINED LETTER YA..LEPCHA VOWEL SIGN UU
-  0x1C34 <= code && code <= 0x1C35 || // Mc   [2] LEPCHA CONSONANT SIGN NYIN-DO..LEPCHA CONSONANT SIGN KANG
-  0x1CE1 === code || // Mc       VEDIC TONE ATHARVAVEDIC INDEPENDENT SVARITA
-  0x1CF2 <= code && code <= 0x1CF3 || // Mc   [2] VEDIC SIGN ARDHAVISARGA..VEDIC SIGN ROTATED ARDHAVISARGA
-  0xA823 <= code && code <= 0xA824 || // Mc   [2] SYLOTI NAGRI VOWEL SIGN A..SYLOTI NAGRI VOWEL SIGN I
-  0xA827 === code || // Mc       SYLOTI NAGRI VOWEL SIGN OO
-  0xA880 <= code && code <= 0xA881 || // Mc   [2] SAURASHTRA SIGN ANUSVARA..SAURASHTRA SIGN VISARGA
-  0xA8B4 <= code && code <= 0xA8C3 || // Mc  [16] SAURASHTRA CONSONANT SIGN HAARU..SAURASHTRA VOWEL SIGN AU
-  0xA952 <= code && code <= 0xA953 || // Mc   [2] REJANG CONSONANT SIGN H..REJANG VIRAMA
-  0xA983 === code || // Mc       JAVANESE SIGN WIGNYAN
-  0xA9B4 <= code && code <= 0xA9B5 || // Mc   [2] JAVANESE VOWEL SIGN TARUNG..JAVANESE VOWEL SIGN TOLONG
-  0xA9BA <= code && code <= 0xA9BB || // Mc   [2] JAVANESE VOWEL SIGN TALING..JAVANESE VOWEL SIGN DIRGA MURE
-  0xA9BD <= code && code <= 0xA9C0 || // Mc   [4] JAVANESE CONSONANT SIGN KERET..JAVANESE PANGKON
-  0xAA2F <= code && code <= 0xAA30 || // Mc   [2] CHAM VOWEL SIGN O..CHAM VOWEL SIGN AI
-  0xAA33 <= code && code <= 0xAA34 || // Mc   [2] CHAM CONSONANT SIGN YA..CHAM CONSONANT SIGN RA
-  0xAA4D === code || // Mc       CHAM CONSONANT SIGN FINAL H
-  0xAAEB === code || // Mc       MEETEI MAYEK VOWEL SIGN II
-  0xAAEE <= code && code <= 0xAAEF || // Mc   [2] MEETEI MAYEK VOWEL SIGN AU..MEETEI MAYEK VOWEL SIGN AAU
-  0xAAF5 === code || // Mc       MEETEI MAYEK VOWEL SIGN VISARGA
-  0xABE3 <= code && code <= 0xABE4 || // Mc   [2] MEETEI MAYEK VOWEL SIGN ONAP..MEETEI MAYEK VOWEL SIGN INAP
-  0xABE6 <= code && code <= 0xABE7 || // Mc   [2] MEETEI MAYEK VOWEL SIGN YENAP..MEETEI MAYEK VOWEL SIGN SOUNAP
-  0xABE9 <= code && code <= 0xABEA || // Mc   [2] MEETEI MAYEK VOWEL SIGN CHEINAP..MEETEI MAYEK VOWEL SIGN NUNG
-  0xABEC === code || // Mc       MEETEI MAYEK LUM IYEK
-  0x11000 === code || // Mc       BRAHMI SIGN CANDRABINDU
-  0x11002 === code || // Mc       BRAHMI SIGN VISARGA
-  0x11082 === code || // Mc       KAITHI SIGN VISARGA
-  0x110B0 <= code && code <= 0x110B2 || // Mc   [3] KAITHI VOWEL SIGN AA..KAITHI VOWEL SIGN II
-  0x110B7 <= code && code <= 0x110B8 || // Mc   [2] KAITHI VOWEL SIGN O..KAITHI VOWEL SIGN AU
-  0x1112C === code || // Mc       CHAKMA VOWEL SIGN E
-  0x11182 === code || // Mc       SHARADA SIGN VISARGA
-  0x111B3 <= code && code <= 0x111B5 || // Mc   [3] SHARADA VOWEL SIGN AA..SHARADA VOWEL SIGN II
-  0x111BF <= code && code <= 0x111C0 || // Mc   [2] SHARADA VOWEL SIGN AU..SHARADA SIGN VIRAMA
-  0x1122C <= code && code <= 0x1122E || // Mc   [3] KHOJKI VOWEL SIGN AA..KHOJKI VOWEL SIGN II
-  0x11232 <= code && code <= 0x11233 || // Mc   [2] KHOJKI VOWEL SIGN O..KHOJKI VOWEL SIGN AU
-  0x11235 === code || // Mc       KHOJKI SIGN VIRAMA
-  0x112E0 <= code && code <= 0x112E2 || // Mc   [3] KHUDAWADI VOWEL SIGN AA..KHUDAWADI VOWEL SIGN II
-  0x11302 <= code && code <= 0x11303 || // Mc   [2] GRANTHA SIGN ANUSVARA..GRANTHA SIGN VISARGA
-  0x1133F === code || // Mc       GRANTHA VOWEL SIGN I
-  0x11341 <= code && code <= 0x11344 || // Mc   [4] GRANTHA VOWEL SIGN U..GRANTHA VOWEL SIGN VOCALIC RR
-  0x11347 <= code && code <= 0x11348 || // Mc   [2] GRANTHA VOWEL SIGN EE..GRANTHA VOWEL SIGN AI
-  0x1134B <= code && code <= 0x1134D || // Mc   [3] GRANTHA VOWEL SIGN OO..GRANTHA SIGN VIRAMA
-  0x11362 <= code && code <= 0x11363 || // Mc   [2] GRANTHA VOWEL SIGN VOCALIC L..GRANTHA VOWEL SIGN VOCALIC LL
-  0x114B1 <= code && code <= 0x114B2 || // Mc   [2] TIRHUTA VOWEL SIGN I..TIRHUTA VOWEL SIGN II
-  0x114B9 === code || // Mc       TIRHUTA VOWEL SIGN E
-  0x114BB <= code && code <= 0x114BC || // Mc   [2] TIRHUTA VOWEL SIGN AI..TIRHUTA VOWEL SIGN O
-  0x114BE === code || // Mc       TIRHUTA VOWEL SIGN AU
-  0x114C1 === code || // Mc       TIRHUTA SIGN VISARGA
-  0x115B0 <= code && code <= 0x115B1 || // Mc   [2] SIDDHAM VOWEL SIGN I..SIDDHAM VOWEL SIGN II
-  0x115B8 <= code && code <= 0x115BB || // Mc   [4] SIDDHAM VOWEL SIGN E..SIDDHAM VOWEL SIGN AU
-  0x115BE === code || // Mc       SIDDHAM SIGN VISARGA
-  0x11630 <= code && code <= 0x11632 || // Mc   [3] MODI VOWEL SIGN AA..MODI VOWEL SIGN II
-  0x1163B <= code && code <= 0x1163C || // Mc   [2] MODI VOWEL SIGN O..MODI VOWEL SIGN AU
-  0x1163E === code || // Mc       MODI SIGN VISARGA
-  0x116AC === code || // Mc       TAKRI SIGN VISARGA
-  0x116AE <= code && code <= 0x116AF || // Mc   [2] TAKRI VOWEL SIGN I..TAKRI VOWEL SIGN II
-  0x116B6 === code || // Mc       TAKRI SIGN VIRAMA
-  0x11720 <= code && code <= 0x11721 || // Mc   [2] AHOM VOWEL SIGN A..AHOM VOWEL SIGN AA
-  0x11726 === code || // Mc       AHOM VOWEL SIGN E
-  0x16F51 <= code && code <= 0x16F7E || // Mc  [46] MIAO SIGN ASPIRATION..MIAO VOWEL SIGN NG
-  0x1D166 === code || // Mc       MUSICAL SYMBOL COMBINING SPRECHGESANG STEM
-  0x1D16D === code // Mc       MUSICAL SYMBOL COMBINING AUGMENTATION DOT
-  ) {
-      return SpacingMark;
-    }
-
-  if (0x1100 <= code && code <= 0x115F || // Lo  [96] HANGUL CHOSEONG KIYEOK..HANGUL CHOSEONG FILLER
-  0xA960 <= code && code <= 0xA97C // Lo  [29] HANGUL CHOSEONG TIKEUT-MIEUM..HANGUL CHOSEONG SSANGYEORINHIEUH
-  ) {
-      return L;
-    }
-
-  if (0x1160 <= code && code <= 0x11A7 || // Lo  [72] HANGUL JUNGSEONG FILLER..HANGUL JUNGSEONG O-YAE
-  0xD7B0 <= code && code <= 0xD7C6 // Lo  [23] HANGUL JUNGSEONG O-YEO..HANGUL JUNGSEONG ARAEA-E
-  ) {
-      return V;
-    }
-
-  if (0x11A8 <= code && code <= 0x11FF || // Lo  [88] HANGUL JONGSEONG KIYEOK..HANGUL JONGSEONG SSANGNIEUN
-  0xD7CB <= code && code <= 0xD7FB // Lo  [49] HANGUL JONGSEONG NIEUN-RIEUL..HANGUL JONGSEONG PHIEUPH-THIEUTH
-  ) {
-      return T;
-    }
-
-  if (0xAC00 === code || // Lo       HANGUL SYLLABLE GA
-  0xAC1C === code || // Lo       HANGUL SYLLABLE GAE
-  0xAC38 === code || // Lo       HANGUL SYLLABLE GYA
-  0xAC54 === code || // Lo       HANGUL SYLLABLE GYAE
-  0xAC70 === code || // Lo       HANGUL SYLLABLE GEO
-  0xAC8C === code || // Lo       HANGUL SYLLABLE GE
-  0xACA8 === code || // Lo       HANGUL SYLLABLE GYEO
-  0xACC4 === code || // Lo       HANGUL SYLLABLE GYE
-  0xACE0 === code || // Lo       HANGUL SYLLABLE GO
-  0xACFC === code || // Lo       HANGUL SYLLABLE GWA
-  0xAD18 === code || // Lo       HANGUL SYLLABLE GWAE
-  0xAD34 === code || // Lo       HANGUL SYLLABLE GOE
-  0xAD50 === code || // Lo       HANGUL SYLLABLE GYO
-  0xAD6C === code || // Lo       HANGUL SYLLABLE GU
-  0xAD88 === code || // Lo       HANGUL SYLLABLE GWEO
-  0xADA4 === code || // Lo       HANGUL SYLLABLE GWE
-  0xADC0 === code || // Lo       HANGUL SYLLABLE GWI
-  0xADDC === code || // Lo       HANGUL SYLLABLE GYU
-  0xADF8 === code || // Lo       HANGUL SYLLABLE GEU
-  0xAE14 === code || // Lo       HANGUL SYLLABLE GYI
-  0xAE30 === code || // Lo       HANGUL SYLLABLE GI
-  0xAE4C === code || // Lo       HANGUL SYLLABLE GGA
-  0xAE68 === code || // Lo       HANGUL SYLLABLE GGAE
-  0xAE84 === code || // Lo       HANGUL SYLLABLE GGYA
-  0xAEA0 === code || // Lo       HANGUL SYLLABLE GGYAE
-  0xAEBC === code || // Lo       HANGUL SYLLABLE GGEO
-  0xAED8 === code || // Lo       HANGUL SYLLABLE GGE
-  0xAEF4 === code || // Lo       HANGUL SYLLABLE GGYEO
-  0xAF10 === code || // Lo       HANGUL SYLLABLE GGYE
-  0xAF2C === code || // Lo       HANGUL SYLLABLE GGO
-  0xAF48 === code || // Lo       HANGUL SYLLABLE GGWA
-  0xAF64 === code || // Lo       HANGUL SYLLABLE GGWAE
-  0xAF80 === code || // Lo       HANGUL SYLLABLE GGOE
-  0xAF9C === code || // Lo       HANGUL SYLLABLE GGYO
-  0xAFB8 === code || // Lo       HANGUL SYLLABLE GGU
-  0xAFD4 === code || // Lo       HANGUL SYLLABLE GGWEO
-  0xAFF0 === code || // Lo       HANGUL SYLLABLE GGWE
-  0xB00C === code || // Lo       HANGUL SYLLABLE GGWI
-  0xB028 === code || // Lo       HANGUL SYLLABLE GGYU
-  0xB044 === code || // Lo       HANGUL SYLLABLE GGEU
-  0xB060 === code || // Lo       HANGUL SYLLABLE GGYI
-  0xB07C === code || // Lo       HANGUL SYLLABLE GGI
-  0xB098 === code || // Lo       HANGUL SYLLABLE NA
-  0xB0B4 === code || // Lo       HANGUL SYLLABLE NAE
-  0xB0D0 === code || // Lo       HANGUL SYLLABLE NYA
-  0xB0EC === code || // Lo       HANGUL SYLLABLE NYAE
-  0xB108 === code || // Lo       HANGUL SYLLABLE NEO
-  0xB124 === code || // Lo       HANGUL SYLLABLE NE
-  0xB140 === code || // Lo       HANGUL SYLLABLE NYEO
-  0xB15C === code || // Lo       HANGUL SYLLABLE NYE
-  0xB178 === code || // Lo       HANGUL SYLLABLE NO
-  0xB194 === code || // Lo       HANGUL SYLLABLE NWA
-  0xB1B0 === code || // Lo       HANGUL SYLLABLE NWAE
-  0xB1CC === code || // Lo       HANGUL SYLLABLE NOE
-  0xB1E8 === code || // Lo       HANGUL SYLLABLE NYO
-  0xB204 === code || // Lo       HANGUL SYLLABLE NU
-  0xB220 === code || // Lo       HANGUL SYLLABLE NWEO
-  0xB23C === code || // Lo       HANGUL SYLLABLE NWE
-  0xB258 === code || // Lo       HANGUL SYLLABLE NWI
-  0xB274 === code || // Lo       HANGUL SYLLABLE NYU
-  0xB290 === code || // Lo       HANGUL SYLLABLE NEU
-  0xB2AC === code || // Lo       HANGUL SYLLABLE NYI
-  0xB2C8 === code || // Lo       HANGUL SYLLABLE NI
-  0xB2E4 === code || // Lo       HANGUL SYLLABLE DA
-  0xB300 === code || // Lo       HANGUL SYLLABLE DAE
-  0xB31C === code || // Lo       HANGUL SYLLABLE DYA
-  0xB338 === code || // Lo       HANGUL SYLLABLE DYAE
-  0xB354 === code || // Lo       HANGUL SYLLABLE DEO
-  0xB370 === code || // Lo       HANGUL SYLLABLE DE
-  0xB38C === code || // Lo       HANGUL SYLLABLE DYEO
-  0xB3A8 === code || // Lo       HANGUL SYLLABLE DYE
-  0xB3C4 === code || // Lo       HANGUL SYLLABLE DO
-  0xB3E0 === code || // Lo       HANGUL SYLLABLE DWA
-  0xB3FC === code || // Lo       HANGUL SYLLABLE DWAE
-  0xB418 === code || // Lo       HANGUL SYLLABLE DOE
-  0xB434 === code || // Lo       HANGUL SYLLABLE DYO
-  0xB450 === code || // Lo       HANGUL SYLLABLE DU
-  0xB46C === code || // Lo       HANGUL SYLLABLE DWEO
-  0xB488 === code || // Lo       HANGUL SYLLABLE DWE
-  0xB4A4 === code || // Lo       HANGUL SYLLABLE DWI
-  0xB4C0 === code || // Lo       HANGUL SYLLABLE DYU
-  0xB4DC === code || // Lo       HANGUL SYLLABLE DEU
-  0xB4F8 === code || // Lo       HANGUL SYLLABLE DYI
-  0xB514 === code || // Lo       HANGUL SYLLABLE DI
-  0xB530 === code || // Lo       HANGUL SYLLABLE DDA
-  0xB54C === code || // Lo       HANGUL SYLLABLE DDAE
-  0xB568 === code || // Lo       HANGUL SYLLABLE DDYA
-  0xB584 === code || // Lo       HANGUL SYLLABLE DDYAE
-  0xB5A0 === code || // Lo       HANGUL SYLLABLE DDEO
-  0xB5BC === code || // Lo       HANGUL SYLLABLE DDE
-  0xB5D8 === code || // Lo       HANGUL SYLLABLE DDYEO
-  0xB5F4 === code || // Lo       HANGUL SYLLABLE DDYE
-  0xB610 === code || // Lo       HANGUL SYLLABLE DDO
-  0xB62C === code || // Lo       HANGUL SYLLABLE DDWA
-  0xB648 === code || // Lo       HANGUL SYLLABLE DDWAE
-  0xB664 === code || // Lo       HANGUL SYLLABLE DDOE
-  0xB680 === code || // Lo       HANGUL SYLLABLE DDYO
-  0xB69C === code || // Lo       HANGUL SYLLABLE DDU
-  0xB6B8 === code || // Lo       HANGUL SYLLABLE DDWEO
-  0xB6D4 === code || // Lo       HANGUL SYLLABLE DDWE
-  0xB6F0 === code || // Lo       HANGUL SYLLABLE DDWI
-  0xB70C === code || // Lo       HANGUL SYLLABLE DDYU
-  0xB728 === code || // Lo       HANGUL SYLLABLE DDEU
-  0xB744 === code || // Lo       HANGUL SYLLABLE DDYI
-  0xB760 === code || // Lo       HANGUL SYLLABLE DDI
-  0xB77C === code || // Lo       HANGUL SYLLABLE RA
-  0xB798 === code || // Lo       HANGUL SYLLABLE RAE
-  0xB7B4 === code || // Lo       HANGUL SYLLABLE RYA
-  0xB7D0 === code || // Lo       HANGUL SYLLABLE RYAE
-  0xB7EC === code || // Lo       HANGUL SYLLABLE REO
-  0xB808 === code || // Lo       HANGUL SYLLABLE RE
-  0xB824 === code || // Lo       HANGUL SYLLABLE RYEO
-  0xB840 === code || // Lo       HANGUL SYLLABLE RYE
-  0xB85C === code || // Lo       HANGUL SYLLABLE RO
-  0xB878 === code || // Lo       HANGUL SYLLABLE RWA
-  0xB894 === code || // Lo       HANGUL SYLLABLE RWAE
-  0xB8B0 === code || // Lo       HANGUL SYLLABLE ROE
-  0xB8CC === code || // Lo       HANGUL SYLLABLE RYO
-  0xB8E8 === code || // Lo       HANGUL SYLLABLE RU
-  0xB904 === code || // Lo       HANGUL SYLLABLE RWEO
-  0xB920 === code || // Lo       HANGUL SYLLABLE RWE
-  0xB93C === code || // Lo       HANGUL SYLLABLE RWI
-  0xB958 === code || // Lo       HANGUL SYLLABLE RYU
-  0xB974 === code || // Lo       HANGUL SYLLABLE REU
-  0xB990 === code || // Lo       HANGUL SYLLABLE RYI
-  0xB9AC === code || // Lo       HANGUL SYLLABLE RI
-  0xB9C8 === code || // Lo       HANGUL SYLLABLE MA
-  0xB9E4 === code || // Lo       HANGUL SYLLABLE MAE
-  0xBA00 === code || // Lo       HANGUL SYLLABLE MYA
-  0xBA1C === code || // Lo       HANGUL SYLLABLE MYAE
-  0xBA38 === code || // Lo       HANGUL SYLLABLE MEO
-  0xBA54 === code || // Lo       HANGUL SYLLABLE ME
-  0xBA70 === code || // Lo       HANGUL SYLLABLE MYEO
-  0xBA8C === code || // Lo       HANGUL SYLLABLE MYE
-  0xBAA8 === code || // Lo       HANGUL SYLLABLE MO
-  0xBAC4 === code || // Lo       HANGUL SYLLABLE MWA
-  0xBAE0 === code || // Lo       HANGUL SYLLABLE MWAE
-  0xBAFC === code || // Lo       HANGUL SYLLABLE MOE
-  0xBB18 === code || // Lo       HANGUL SYLLABLE MYO
-  0xBB34 === code || // Lo       HANGUL SYLLABLE MU
-  0xBB50 === code || // Lo       HANGUL SYLLABLE MWEO
-  0xBB6C === code || // Lo       HANGUL SYLLABLE MWE
-  0xBB88 === code || // Lo       HANGUL SYLLABLE MWI
-  0xBBA4 === code || // Lo       HANGUL SYLLABLE MYU
-  0xBBC0 === code || // Lo       HANGUL SYLLABLE MEU
-  0xBBDC === code || // Lo       HANGUL SYLLABLE MYI
-  0xBBF8 === code || // Lo       HANGUL SYLLABLE MI
-  0xBC14 === code || // Lo       HANGUL SYLLABLE BA
-  0xBC30 === code || // Lo       HANGUL SYLLABLE BAE
-  0xBC4C === code || // Lo       HANGUL SYLLABLE BYA
-  0xBC68 === code || // Lo       HANGUL SYLLABLE BYAE
-  0xBC84 === code || // Lo       HANGUL SYLLABLE BEO
-  0xBCA0 === code || // Lo       HANGUL SYLLABLE BE
-  0xBCBC === code || // Lo       HANGUL SYLLABLE BYEO
-  0xBCD8 === code || // Lo       HANGUL SYLLABLE BYE
-  0xBCF4 === code || // Lo       HANGUL SYLLABLE BO
-  0xBD10 === code || // Lo       HANGUL SYLLABLE BWA
-  0xBD2C === code || // Lo       HANGUL SYLLABLE BWAE
-  0xBD48 === code || // Lo       HANGUL SYLLABLE BOE
-  0xBD64 === code || // Lo       HANGUL SYLLABLE BYO
-  0xBD80 === code || // Lo       HANGUL SYLLABLE BU
-  0xBD9C === code || // Lo       HANGUL SYLLABLE BWEO
-  0xBDB8 === code || // Lo       HANGUL SYLLABLE BWE
-  0xBDD4 === code || // Lo       HANGUL SYLLABLE BWI
-  0xBDF0 === code || // Lo       HANGUL SYLLABLE BYU
-  0xBE0C === code || // Lo       HANGUL SYLLABLE BEU
-  0xBE28 === code || // Lo       HANGUL SYLLABLE BYI
-  0xBE44 === code || // Lo       HANGUL SYLLABLE BI
-  0xBE60 === code || // Lo       HANGUL SYLLABLE BBA
-  0xBE7C === code || // Lo       HANGUL SYLLABLE BBAE
-  0xBE98 === code || // Lo       HANGUL SYLLABLE BBYA
-  0xBEB4 === code || // Lo       HANGUL SYLLABLE BBYAE
-  0xBED0 === code || // Lo       HANGUL SYLLABLE BBEO
-  0xBEEC === code || // Lo       HANGUL SYLLABLE BBE
-  0xBF08 === code || // Lo       HANGUL SYLLABLE BBYEO
-  0xBF24 === code || // Lo       HANGUL SYLLABLE BBYE
-  0xBF40 === code || // Lo       HANGUL SYLLABLE BBO
-  0xBF5C === code || // Lo       HANGUL SYLLABLE BBWA
-  0xBF78 === code || // Lo       HANGUL SYLLABLE BBWAE
-  0xBF94 === code || // Lo       HANGUL SYLLABLE BBOE
-  0xBFB0 === code || // Lo       HANGUL SYLLABLE BBYO
-  0xBFCC === code || // Lo       HANGUL SYLLABLE BBU
-  0xBFE8 === code || // Lo       HANGUL SYLLABLE BBWEO
-  0xC004 === code || // Lo       HANGUL SYLLABLE BBWE
-  0xC020 === code || // Lo       HANGUL SYLLABLE BBWI
-  0xC03C === code || // Lo       HANGUL SYLLABLE BBYU
-  0xC058 === code || // Lo       HANGUL SYLLABLE BBEU
-  0xC074 === code || // Lo       HANGUL SYLLABLE BBYI
-  0xC090 === code || // Lo       HANGUL SYLLABLE BBI
-  0xC0AC === code || // Lo       HANGUL SYLLABLE SA
-  0xC0C8 === code || // Lo       HANGUL SYLLABLE SAE
-  0xC0E4 === code || // Lo       HANGUL SYLLABLE SYA
-  0xC100 === code || // Lo       HANGUL SYLLABLE SYAE
-  0xC11C === code || // Lo       HANGUL SYLLABLE SEO
-  0xC138 === code || // Lo       HANGUL SYLLABLE SE
-  0xC154 === code || // Lo       HANGUL SYLLABLE SYEO
-  0xC170 === code || // Lo       HANGUL SYLLABLE SYE
-  0xC18C === code || // Lo       HANGUL SYLLABLE SO
-  0xC1A8 === code || // Lo       HANGUL SYLLABLE SWA
-  0xC1C4 === code || // Lo       HANGUL SYLLABLE SWAE
-  0xC1E0 === code || // Lo       HANGUL SYLLABLE SOE
-  0xC1FC === code || // Lo       HANGUL SYLLABLE SYO
-  0xC218 === code || // Lo       HANGUL SYLLABLE SU
-  0xC234 === code || // Lo       HANGUL SYLLABLE SWEO
-  0xC250 === code || // Lo       HANGUL SYLLABLE SWE
-  0xC26C === code || // Lo       HANGUL SYLLABLE SWI
-  0xC288 === code || // Lo       HANGUL SYLLABLE SYU
-  0xC2A4 === code || // Lo       HANGUL SYLLABLE SEU
-  0xC2C0 === code || // Lo       HANGUL SYLLABLE SYI
-  0xC2DC === code || // Lo       HANGUL SYLLABLE SI
-  0xC2F8 === code || // Lo       HANGUL SYLLABLE SSA
-  0xC314 === code || // Lo       HANGUL SYLLABLE SSAE
-  0xC330 === code || // Lo       HANGUL SYLLABLE SSYA
-  0xC34C === code || // Lo       HANGUL SYLLABLE SSYAE
-  0xC368 === code || // Lo       HANGUL SYLLABLE SSEO
-  0xC384 === code || // Lo       HANGUL SYLLABLE SSE
-  0xC3A0 === code || // Lo       HANGUL SYLLABLE SSYEO
-  0xC3BC === code || // Lo       HANGUL SYLLABLE SSYE
-  0xC3D8 === code || // Lo       HANGUL SYLLABLE SSO
-  0xC3F4 === code || // Lo       HANGUL SYLLABLE SSWA
-  0xC410 === code || // Lo       HANGUL SYLLABLE SSWAE
-  0xC42C === code || // Lo       HANGUL SYLLABLE SSOE
-  0xC448 === code || // Lo       HANGUL SYLLABLE SSYO
-  0xC464 === code || // Lo       HANGUL SYLLABLE SSU
-  0xC480 === code || // Lo       HANGUL SYLLABLE SSWEO
-  0xC49C === code || // Lo       HANGUL SYLLABLE SSWE
-  0xC4B8 === code || // Lo       HANGUL SYLLABLE SSWI
-  0xC4D4 === code || // Lo       HANGUL SYLLABLE SSYU
-  0xC4F0 === code || // Lo       HANGUL SYLLABLE SSEU
-  0xC50C === code || // Lo       HANGUL SYLLABLE SSYI
-  0xC528 === code || // Lo       HANGUL SYLLABLE SSI
-  0xC544 === code || // Lo       HANGUL SYLLABLE A
-  0xC560 === code || // Lo       HANGUL SYLLABLE AE
-  0xC57C === code || // Lo       HANGUL SYLLABLE YA
-  0xC598 === code || // Lo       HANGUL SYLLABLE YAE
-  0xC5B4 === code || // Lo       HANGUL SYLLABLE EO
-  0xC5D0 === code || // Lo       HANGUL SYLLABLE E
-  0xC5EC === code || // Lo       HANGUL SYLLABLE YEO
-  0xC608 === code || // Lo       HANGUL SYLLABLE YE
-  0xC624 === code || // Lo       HANGUL SYLLABLE O
-  0xC640 === code || // Lo       HANGUL SYLLABLE WA
-  0xC65C === code || // Lo       HANGUL SYLLABLE WAE
-  0xC678 === code || // Lo       HANGUL SYLLABLE OE
-  0xC694 === code || // Lo       HANGUL SYLLABLE YO
-  0xC6B0 === code || // Lo       HANGUL SYLLABLE U
-  0xC6CC === code || // Lo       HANGUL SYLLABLE WEO
-  0xC6E8 === code || // Lo       HANGUL SYLLABLE WE
-  0xC704 === code || // Lo       HANGUL SYLLABLE WI
-  0xC720 === code || // Lo       HANGUL SYLLABLE YU
-  0xC73C === code || // Lo       HANGUL SYLLABLE EU
-  0xC758 === code || // Lo       HANGUL SYLLABLE YI
-  0xC774 === code || // Lo       HANGUL SYLLABLE I
-  0xC790 === code || // Lo       HANGUL SYLLABLE JA
-  0xC7AC === code || // Lo       HANGUL SYLLABLE JAE
-  0xC7C8 === code || // Lo       HANGUL SYLLABLE JYA
-  0xC7E4 === code || // Lo       HANGUL SYLLABLE JYAE
-  0xC800 === code || // Lo       HANGUL SYLLABLE JEO
-  0xC81C === code || // Lo       HANGUL SYLLABLE JE
-  0xC838 === code || // Lo       HANGUL SYLLABLE JYEO
-  0xC854 === code || // Lo       HANGUL SYLLABLE JYE
-  0xC870 === code || // Lo       HANGUL SYLLABLE JO
-  0xC88C === code || // Lo       HANGUL SYLLABLE JWA
-  0xC8A8 === code || // Lo       HANGUL SYLLABLE JWAE
-  0xC8C4 === code || // Lo       HANGUL SYLLABLE JOE
-  0xC8E0 === code || // Lo       HANGUL SYLLABLE JYO
-  0xC8FC === code || // Lo       HANGUL SYLLABLE JU
-  0xC918 === code || // Lo       HANGUL SYLLABLE JWEO
-  0xC934 === code || // Lo       HANGUL SYLLABLE JWE
-  0xC950 === code || // Lo       HANGUL SYLLABLE JWI
-  0xC96C === code || // Lo       HANGUL SYLLABLE JYU
-  0xC988 === code || // Lo       HANGUL SYLLABLE JEU
-  0xC9A4 === code || // Lo       HANGUL SYLLABLE JYI
-  0xC9C0 === code || // Lo       HANGUL SYLLABLE JI
-  0xC9DC === code || // Lo       HANGUL SYLLABLE JJA
-  0xC9F8 === code || // Lo       HANGUL SYLLABLE JJAE
-  0xCA14 === code || // Lo       HANGUL SYLLABLE JJYA
-  0xCA30 === code || // Lo       HANGUL SYLLABLE JJYAE
-  0xCA4C === code || // Lo       HANGUL SYLLABLE JJEO
-  0xCA68 === code || // Lo       HANGUL SYLLABLE JJE
-  0xCA84 === code || // Lo       HANGUL SYLLABLE JJYEO
-  0xCAA0 === code || // Lo       HANGUL SYLLABLE JJYE
-  0xCABC === code || // Lo       HANGUL SYLLABLE JJO
-  0xCAD8 === code || // Lo       HANGUL SYLLABLE JJWA
-  0xCAF4 === code || // Lo       HANGUL SYLLABLE JJWAE
-  0xCB10 === code || // Lo       HANGUL SYLLABLE JJOE
-  0xCB2C === code || // Lo       HANGUL SYLLABLE JJYO
-  0xCB48 === code || // Lo       HANGUL SYLLABLE JJU
-  0xCB64 === code || // Lo       HANGUL SYLLABLE JJWEO
-  0xCB80 === code || // Lo       HANGUL SYLLABLE JJWE
-  0xCB9C === code || // Lo       HANGUL SYLLABLE JJWI
-  0xCBB8 === code || // Lo       HANGUL SYLLABLE JJYU
-  0xCBD4 === code || // Lo       HANGUL SYLLABLE JJEU
-  0xCBF0 === code || // Lo       HANGUL SYLLABLE JJYI
-  0xCC0C === code || // Lo       HANGUL SYLLABLE JJI
-  0xCC28 === code || // Lo       HANGUL SYLLABLE CA
-  0xCC44 === code || // Lo       HANGUL SYLLABLE CAE
-  0xCC60 === code || // Lo       HANGUL SYLLABLE CYA
-  0xCC7C === code || // Lo       HANGUL SYLLABLE CYAE
-  0xCC98 === code || // Lo       HANGUL SYLLABLE CEO
-  0xCCB4 === code || // Lo       HANGUL SYLLABLE CE
-  0xCCD0 === code || // Lo       HANGUL SYLLABLE CYEO
-  0xCCEC === code || // Lo       HANGUL SYLLABLE CYE
-  0xCD08 === code || // Lo       HANGUL SYLLABLE CO
-  0xCD24 === code || // Lo       HANGUL SYLLABLE CWA
-  0xCD40 === code || // Lo       HANGUL SYLLABLE CWAE
-  0xCD5C === code || // Lo       HANGUL SYLLABLE COE
-  0xCD78 === code || // Lo       HANGUL SYLLABLE CYO
-  0xCD94 === code || // Lo       HANGUL SYLLABLE CU
-  0xCDB0 === code || // Lo       HANGUL SYLLABLE CWEO
-  0xCDCC === code || // Lo       HANGUL SYLLABLE CWE
-  0xCDE8 === code || // Lo       HANGUL SYLLABLE CWI
-  0xCE04 === code || // Lo       HANGUL SYLLABLE CYU
-  0xCE20 === code || // Lo       HANGUL SYLLABLE CEU
-  0xCE3C === code || // Lo       HANGUL SYLLABLE CYI
-  0xCE58 === code || // Lo       HANGUL SYLLABLE CI
-  0xCE74 === code || // Lo       HANGUL SYLLABLE KA
-  0xCE90 === code || // Lo       HANGUL SYLLABLE KAE
-  0xCEAC === code || // Lo       HANGUL SYLLABLE KYA
-  0xCEC8 === code || // Lo       HANGUL SYLLABLE KYAE
-  0xCEE4 === code || // Lo       HANGUL SYLLABLE KEO
-  0xCF00 === code || // Lo       HANGUL SYLLABLE KE
-  0xCF1C === code || // Lo       HANGUL SYLLABLE KYEO
-  0xCF38 === code || // Lo       HANGUL SYLLABLE KYE
-  0xCF54 === code || // Lo       HANGUL SYLLABLE KO
-  0xCF70 === code || // Lo       HANGUL SYLLABLE KWA
-  0xCF8C === code || // Lo       HANGUL SYLLABLE KWAE
-  0xCFA8 === code || // Lo       HANGUL SYLLABLE KOE
-  0xCFC4 === code || // Lo       HANGUL SYLLABLE KYO
-  0xCFE0 === code || // Lo       HANGUL SYLLABLE KU
-  0xCFFC === code || // Lo       HANGUL SYLLABLE KWEO
-  0xD018 === code || // Lo       HANGUL SYLLABLE KWE
-  0xD034 === code || // Lo       HANGUL SYLLABLE KWI
-  0xD050 === code || // Lo       HANGUL SYLLABLE KYU
-  0xD06C === code || // Lo       HANGUL SYLLABLE KEU
-  0xD088 === code || // Lo       HANGUL SYLLABLE KYI
-  0xD0A4 === code || // Lo       HANGUL SYLLABLE KI
-  0xD0C0 === code || // Lo       HANGUL SYLLABLE TA
-  0xD0DC === code || // Lo       HANGUL SYLLABLE TAE
-  0xD0F8 === code || // Lo       HANGUL SYLLABLE TYA
-  0xD114 === code || // Lo       HANGUL SYLLABLE TYAE
-  0xD130 === code || // Lo       HANGUL SYLLABLE TEO
-  0xD14C === code || // Lo       HANGUL SYLLABLE TE
-  0xD168 === code || // Lo       HANGUL SYLLABLE TYEO
-  0xD184 === code || // Lo       HANGUL SYLLABLE TYE
-  0xD1A0 === code || // Lo       HANGUL SYLLABLE TO
-  0xD1BC === code || // Lo       HANGUL SYLLABLE TWA
-  0xD1D8 === code || // Lo       HANGUL SYLLABLE TWAE
-  0xD1F4 === code || // Lo       HANGUL SYLLABLE TOE
-  0xD210 === code || // Lo       HANGUL SYLLABLE TYO
-  0xD22C === code || // Lo       HANGUL SYLLABLE TU
-  0xD248 === code || // Lo       HANGUL SYLLABLE TWEO
-  0xD264 === code || // Lo       HANGUL SYLLABLE TWE
-  0xD280 === code || // Lo       HANGUL SYLLABLE TWI
-  0xD29C === code || // Lo       HANGUL SYLLABLE TYU
-  0xD2B8 === code || // Lo       HANGUL SYLLABLE TEU
-  0xD2D4 === code || // Lo       HANGUL SYLLABLE TYI
-  0xD2F0 === code || // Lo       HANGUL SYLLABLE TI
-  0xD30C === code || // Lo       HANGUL SYLLABLE PA
-  0xD328 === code || // Lo       HANGUL SYLLABLE PAE
-  0xD344 === code || // Lo       HANGUL SYLLABLE PYA
-  0xD360 === code || // Lo       HANGUL SYLLABLE PYAE
-  0xD37C === code || // Lo       HANGUL SYLLABLE PEO
-  0xD398 === code || // Lo       HANGUL SYLLABLE PE
-  0xD3B4 === code || // Lo       HANGUL SYLLABLE PYEO
-  0xD3D0 === code || // Lo       HANGUL SYLLABLE PYE
-  0xD3EC === code || // Lo       HANGUL SYLLABLE PO
-  0xD408 === code || // Lo       HANGUL SYLLABLE PWA
-  0xD424 === code || // Lo       HANGUL SYLLABLE PWAE
-  0xD440 === code || // Lo       HANGUL SYLLABLE POE
-  0xD45C === code || // Lo       HANGUL SYLLABLE PYO
-  0xD478 === code || // Lo       HANGUL SYLLABLE PU
-  0xD494 === code || // Lo       HANGUL SYLLABLE PWEO
-  0xD4B0 === code || // Lo       HANGUL SYLLABLE PWE
-  0xD4CC === code || // Lo       HANGUL SYLLABLE PWI
-  0xD4E8 === code || // Lo       HANGUL SYLLABLE PYU
-  0xD504 === code || // Lo       HANGUL SYLLABLE PEU
-  0xD520 === code || // Lo       HANGUL SYLLABLE PYI
-  0xD53C === code || // Lo       HANGUL SYLLABLE PI
-  0xD558 === code || // Lo       HANGUL SYLLABLE HA
-  0xD574 === code || // Lo       HANGUL SYLLABLE HAE
-  0xD590 === code || // Lo       HANGUL SYLLABLE HYA
-  0xD5AC === code || // Lo       HANGUL SYLLABLE HYAE
-  0xD5C8 === code || // Lo       HANGUL SYLLABLE HEO
-  0xD5E4 === code || // Lo       HANGUL SYLLABLE HE
-  0xD600 === code || // Lo       HANGUL SYLLABLE HYEO
-  0xD61C === code || // Lo       HANGUL SYLLABLE HYE
-  0xD638 === code || // Lo       HANGUL SYLLABLE HO
-  0xD654 === code || // Lo       HANGUL SYLLABLE HWA
-  0xD670 === code || // Lo       HANGUL SYLLABLE HWAE
-  0xD68C === code || // Lo       HANGUL SYLLABLE HOE
-  0xD6A8 === code || // Lo       HANGUL SYLLABLE HYO
-  0xD6C4 === code || // Lo       HANGUL SYLLABLE HU
-  0xD6E0 === code || // Lo       HANGUL SYLLABLE HWEO
-  0xD6FC === code || // Lo       HANGUL SYLLABLE HWE
-  0xD718 === code || // Lo       HANGUL SYLLABLE HWI
-  0xD734 === code || // Lo       HANGUL SYLLABLE HYU
-  0xD750 === code || // Lo       HANGUL SYLLABLE HEU
-  0xD76C === code || // Lo       HANGUL SYLLABLE HYI
-  0xD788 === code // Lo       HANGUL SYLLABLE HI
-  ) {
-      return LV;
-    }
-
-  if (0xAC01 <= code && code <= 0xAC1B || // Lo  [27] HANGUL SYLLABLE GAG..HANGUL SYLLABLE GAH
-  0xAC1D <= code && code <= 0xAC37 || // Lo  [27] HANGUL SYLLABLE GAEG..HANGUL SYLLABLE GAEH
-  0xAC39 <= code && code <= 0xAC53 || // Lo  [27] HANGUL SYLLABLE GYAG..HANGUL SYLLABLE GYAH
-  0xAC55 <= code && code <= 0xAC6F || // Lo  [27] HANGUL SYLLABLE GYAEG..HANGUL SYLLABLE GYAEH
-  0xAC71 <= code && code <= 0xAC8B || // Lo  [27] HANGUL SYLLABLE GEOG..HANGUL SYLLABLE GEOH
-  0xAC8D <= code && code <= 0xACA7 || // Lo  [27] HANGUL SYLLABLE GEG..HANGUL SYLLABLE GEH
-  0xACA9 <= code && code <= 0xACC3 || // Lo  [27] HANGUL SYLLABLE GYEOG..HANGUL SYLLABLE GYEOH
-  0xACC5 <= code && code <= 0xACDF || // Lo  [27] HANGUL SYLLABLE GYEG..HANGUL SYLLABLE GYEH
-  0xACE1 <= code && code <= 0xACFB || // Lo  [27] HANGUL SYLLABLE GOG..HANGUL SYLLABLE GOH
-  0xACFD <= code && code <= 0xAD17 || // Lo  [27] HANGUL SYLLABLE GWAG..HANGUL SYLLABLE GWAH
-  0xAD19 <= code && code <= 0xAD33 || // Lo  [27] HANGUL SYLLABLE GWAEG..HANGUL SYLLABLE GWAEH
-  0xAD35 <= code && code <= 0xAD4F || // Lo  [27] HANGUL SYLLABLE GOEG..HANGUL SYLLABLE GOEH
-  0xAD51 <= code && code <= 0xAD6B || // Lo  [27] HANGUL SYLLABLE GYOG..HANGUL SYLLABLE GYOH
-  0xAD6D <= code && code <= 0xAD87 || // Lo  [27] HANGUL SYLLABLE GUG..HANGUL SYLLABLE GUH
-  0xAD89 <= code && code <= 0xADA3 || // Lo  [27] HANGUL SYLLABLE GWEOG..HANGUL SYLLABLE GWEOH
-  0xADA5 <= code && code <= 0xADBF || // Lo  [27] HANGUL SYLLABLE GWEG..HANGUL SYLLABLE GWEH
-  0xADC1 <= code && code <= 0xADDB || // Lo  [27] HANGUL SYLLABLE GWIG..HANGUL SYLLABLE GWIH
-  0xADDD <= code && code <= 0xADF7 || // Lo  [27] HANGUL SYLLABLE GYUG..HANGUL SYLLABLE GYUH
-  0xADF9 <= code && code <= 0xAE13 || // Lo  [27] HANGUL SYLLABLE GEUG..HANGUL SYLLABLE GEUH
-  0xAE15 <= code && code <= 0xAE2F || // Lo  [27] HANGUL SYLLABLE GYIG..HANGUL SYLLABLE GYIH
-  0xAE31 <= code && code <= 0xAE4B || // Lo  [27] HANGUL SYLLABLE GIG..HANGUL SYLLABLE GIH
-  0xAE4D <= code && code <= 0xAE67 || // Lo  [27] HANGUL SYLLABLE GGAG..HANGUL SYLLABLE GGAH
-  0xAE69 <= code && code <= 0xAE83 || // Lo  [27] HANGUL SYLLABLE GGAEG..HANGUL SYLLABLE GGAEH
-  0xAE85 <= code && code <= 0xAE9F || // Lo  [27] HANGUL SYLLABLE GGYAG..HANGUL SYLLABLE GGYAH
-  0xAEA1 <= code && code <= 0xAEBB || // Lo  [27] HANGUL SYLLABLE GGYAEG..HANGUL SYLLABLE GGYAEH
-  0xAEBD <= code && code <= 0xAED7 || // Lo  [27] HANGUL SYLLABLE GGEOG..HANGUL SYLLABLE GGEOH
-  0xAED9 <= code && code <= 0xAEF3 || // Lo  [27] HANGUL SYLLABLE GGEG..HANGUL SYLLABLE GGEH
-  0xAEF5 <= code && code <= 0xAF0F || // Lo  [27] HANGUL SYLLABLE GGYEOG..HANGUL SYLLABLE GGYEOH
-  0xAF11 <= code && code <= 0xAF2B || // Lo  [27] HANGUL SYLLABLE GGYEG..HANGUL SYLLABLE GGYEH
-  0xAF2D <= code && code <= 0xAF47 || // Lo  [27] HANGUL SYLLABLE GGOG..HANGUL SYLLABLE GGOH
-  0xAF49 <= code && code <= 0xAF63 || // Lo  [27] HANGUL SYLLABLE GGWAG..HANGUL SYLLABLE GGWAH
-  0xAF65 <= code && code <= 0xAF7F || // Lo  [27] HANGUL SYLLABLE GGWAEG..HANGUL SYLLABLE GGWAEH
-  0xAF81 <= code && code <= 0xAF9B || // Lo  [27] HANGUL SYLLABLE GGOEG..HANGUL SYLLABLE GGOEH
-  0xAF9D <= code && code <= 0xAFB7 || // Lo  [27] HANGUL SYLLABLE GGYOG..HANGUL SYLLABLE GGYOH
-  0xAFB9 <= code && code <= 0xAFD3 || // Lo  [27] HANGUL SYLLABLE GGUG..HANGUL SYLLABLE GGUH
-  0xAFD5 <= code && code <= 0xAFEF || // Lo  [27] HANGUL SYLLABLE GGWEOG..HANGUL SYLLABLE GGWEOH
-  0xAFF1 <= code && code <= 0xB00B || // Lo  [27] HANGUL SYLLABLE GGWEG..HANGUL SYLLABLE GGWEH
-  0xB00D <= code && code <= 0xB027 || // Lo  [27] HANGUL SYLLABLE GGWIG..HANGUL SYLLABLE GGWIH
-  0xB029 <= code && code <= 0xB043 || // Lo  [27] HANGUL SYLLABLE GGYUG..HANGUL SYLLABLE GGYUH
-  0xB045 <= code && code <= 0xB05F || // Lo  [27] HANGUL SYLLABLE GGEUG..HANGUL SYLLABLE GGEUH
-  0xB061 <= code && code <= 0xB07B || // Lo  [27] HANGUL SYLLABLE GGYIG..HANGUL SYLLABLE GGYIH
-  0xB07D <= code && code <= 0xB097 || // Lo  [27] HANGUL SYLLABLE GGIG..HANGUL SYLLABLE GGIH
-  0xB099 <= code && code <= 0xB0B3 || // Lo  [27] HANGUL SYLLABLE NAG..HANGUL SYLLABLE NAH
-  0xB0B5 <= code && code <= 0xB0CF || // Lo  [27] HANGUL SYLLABLE NAEG..HANGUL SYLLABLE NAEH
-  0xB0D1 <= code && code <= 0xB0EB || // Lo  [27] HANGUL SYLLABLE NYAG..HANGUL SYLLABLE NYAH
-  0xB0ED <= code && code <= 0xB107 || // Lo  [27] HANGUL SYLLABLE NYAEG..HANGUL SYLLABLE NYAEH
-  0xB109 <= code && code <= 0xB123 || // Lo  [27] HANGUL SYLLABLE NEOG..HANGUL SYLLABLE NEOH
-  0xB125 <= code && code <= 0xB13F || // Lo  [27] HANGUL SYLLABLE NEG..HANGUL SYLLABLE NEH
-  0xB141 <= code && code <= 0xB15B || // Lo  [27] HANGUL SYLLABLE NYEOG..HANGUL SYLLABLE NYEOH
-  0xB15D <= code && code <= 0xB177 || // Lo  [27] HANGUL SYLLABLE NYEG..HANGUL SYLLABLE NYEH
-  0xB179 <= code && code <= 0xB193 || // Lo  [27] HANGUL SYLLABLE NOG..HANGUL SYLLABLE NOH
-  0xB195 <= code && code <= 0xB1AF || // Lo  [27] HANGUL SYLLABLE NWAG..HANGUL SYLLABLE NWAH
-  0xB1B1 <= code && code <= 0xB1CB || // Lo  [27] HANGUL SYLLABLE NWAEG..HANGUL SYLLABLE NWAEH
-  0xB1CD <= code && code <= 0xB1E7 || // Lo  [27] HANGUL SYLLABLE NOEG..HANGUL SYLLABLE NOEH
-  0xB1E9 <= code && code <= 0xB203 || // Lo  [27] HANGUL SYLLABLE NYOG..HANGUL SYLLABLE NYOH
-  0xB205 <= code && code <= 0xB21F || // Lo  [27] HANGUL SYLLABLE NUG..HANGUL SYLLABLE NUH
-  0xB221 <= code && code <= 0xB23B || // Lo  [27] HANGUL SYLLABLE NWEOG..HANGUL SYLLABLE NWEOH
-  0xB23D <= code && code <= 0xB257 || // Lo  [27] HANGUL SYLLABLE NWEG..HANGUL SYLLABLE NWEH
-  0xB259 <= code && code <= 0xB273 || // Lo  [27] HANGUL SYLLABLE NWIG..HANGUL SYLLABLE NWIH
-  0xB275 <= code && code <= 0xB28F || // Lo  [27] HANGUL SYLLABLE NYUG..HANGUL SYLLABLE NYUH
-  0xB291 <= code && code <= 0xB2AB || // Lo  [27] HANGUL SYLLABLE NEUG..HANGUL SYLLABLE NEUH
-  0xB2AD <= code && code <= 0xB2C7 || // Lo  [27] HANGUL SYLLABLE NYIG..HANGUL SYLLABLE NYIH
-  0xB2C9 <= code && code <= 0xB2E3 || // Lo  [27] HANGUL SYLLABLE NIG..HANGUL SYLLABLE NIH
-  0xB2E5 <= code && code <= 0xB2FF || // Lo  [27] HANGUL SYLLABLE DAG..HANGUL SYLLABLE DAH
-  0xB301 <= code && code <= 0xB31B || // Lo  [27] HANGUL SYLLABLE DAEG..HANGUL SYLLABLE DAEH
-  0xB31D <= code && code <= 0xB337 || // Lo  [27] HANGUL SYLLABLE DYAG..HANGUL SYLLABLE DYAH
-  0xB339 <= code && code <= 0xB353 || // Lo  [27] HANGUL SYLLABLE DYAEG..HANGUL SYLLABLE DYAEH
-  0xB355 <= code && code <= 0xB36F || // Lo  [27] HANGUL SYLLABLE DEOG..HANGUL SYLLABLE DEOH
-  0xB371 <= code && code <= 0xB38B || // Lo  [27] HANGUL SYLLABLE DEG..HANGUL SYLLABLE DEH
-  0xB38D <= code && code <= 0xB3A7 || // Lo  [27] HANGUL SYLLABLE DYEOG..HANGUL SYLLABLE DYEOH
-  0xB3A9 <= code && code <= 0xB3C3 || // Lo  [27] HANGUL SYLLABLE DYEG..HANGUL SYLLABLE DYEH
-  0xB3C5 <= code && code <= 0xB3DF || // Lo  [27] HANGUL SYLLABLE DOG..HANGUL SYLLABLE DOH
-  0xB3E1 <= code && code <= 0xB3FB || // Lo  [27] HANGUL SYLLABLE DWAG..HANGUL SYLLABLE DWAH
-  0xB3FD <= code && code <= 0xB417 || // Lo  [27] HANGUL SYLLABLE DWAEG..HANGUL SYLLABLE DWAEH
-  0xB419 <= code && code <= 0xB433 || // Lo  [27] HANGUL SYLLABLE DOEG..HANGUL SYLLABLE DOEH
-  0xB435 <= code && code <= 0xB44F || // Lo  [27] HANGUL SYLLABLE DYOG..HANGUL SYLLABLE DYOH
-  0xB451 <= code && code <= 0xB46B || // Lo  [27] HANGUL SYLLABLE DUG..HANGUL SYLLABLE DUH
-  0xB46D <= code && code <= 0xB487 || // Lo  [27] HANGUL SYLLABLE DWEOG..HANGUL SYLLABLE DWEOH
-  0xB489 <= code && code <= 0xB4A3 || // Lo  [27] HANGUL SYLLABLE DWEG..HANGUL SYLLABLE DWEH
-  0xB4A5 <= code && code <= 0xB4BF || // Lo  [27] HANGUL SYLLABLE DWIG..HANGUL SYLLABLE DWIH
-  0xB4C1 <= code && code <= 0xB4DB || // Lo  [27] HANGUL SYLLABLE DYUG..HANGUL SYLLABLE DYUH
-  0xB4DD <= code && code <= 0xB4F7 || // Lo  [27] HANGUL SYLLABLE DEUG..HANGUL SYLLABLE DEUH
-  0xB4F9 <= code && code <= 0xB513 || // Lo  [27] HANGUL SYLLABLE DYIG..HANGUL SYLLABLE DYIH
-  0xB515 <= code && code <= 0xB52F || // Lo  [27] HANGUL SYLLABLE DIG..HANGUL SYLLABLE DIH
-  0xB531 <= code && code <= 0xB54B || // Lo  [27] HANGUL SYLLABLE DDAG..HANGUL SYLLABLE DDAH
-  0xB54D <= code && code <= 0xB567 || // Lo  [27] HANGUL SYLLABLE DDAEG..HANGUL SYLLABLE DDAEH
-  0xB569 <= code && code <= 0xB583 || // Lo  [27] HANGUL SYLLABLE DDYAG..HANGUL SYLLABLE DDYAH
-  0xB585 <= code && code <= 0xB59F || // Lo  [27] HANGUL SYLLABLE DDYAEG..HANGUL SYLLABLE DDYAEH
-  0xB5A1 <= code && code <= 0xB5BB || // Lo  [27] HANGUL SYLLABLE DDEOG..HANGUL SYLLABLE DDEOH
-  0xB5BD <= code && code <= 0xB5D7 || // Lo  [27] HANGUL SYLLABLE DDEG..HANGUL SYLLABLE DDEH
-  0xB5D9 <= code && code <= 0xB5F3 || // Lo  [27] HANGUL SYLLABLE DDYEOG..HANGUL SYLLABLE DDYEOH
-  0xB5F5 <= code && code <= 0xB60F || // Lo  [27] HANGUL SYLLABLE DDYEG..HANGUL SYLLABLE DDYEH
-  0xB611 <= code && code <= 0xB62B || // Lo  [27] HANGUL SYLLABLE DDOG..HANGUL SYLLABLE DDOH
-  0xB62D <= code && code <= 0xB647 || // Lo  [27] HANGUL SYLLABLE DDWAG..HANGUL SYLLABLE DDWAH
-  0xB649 <= code && code <= 0xB663 || // Lo  [27] HANGUL SYLLABLE DDWAEG..HANGUL SYLLABLE DDWAEH
-  0xB665 <= code && code <= 0xB67F || // Lo  [27] HANGUL SYLLABLE DDOEG..HANGUL SYLLABLE DDOEH
-  0xB681 <= code && code <= 0xB69B || // Lo  [27] HANGUL SYLLABLE DDYOG..HANGUL SYLLABLE DDYOH
-  0xB69D <= code && code <= 0xB6B7 || // Lo  [27] HANGUL SYLLABLE DDUG..HANGUL SYLLABLE DDUH
-  0xB6B9 <= code && code <= 0xB6D3 || // Lo  [27] HANGUL SYLLABLE DDWEOG..HANGUL SYLLABLE DDWEOH
-  0xB6D5 <= code && code <= 0xB6EF || // Lo  [27] HANGUL SYLLABLE DDWEG..HANGUL SYLLABLE DDWEH
-  0xB6F1 <= code && code <= 0xB70B || // Lo  [27] HANGUL SYLLABLE DDWIG..HANGUL SYLLABLE DDWIH
-  0xB70D <= code && code <= 0xB727 || // Lo  [27] HANGUL SYLLABLE DDYUG..HANGUL SYLLABLE DDYUH
-  0xB729 <= code && code <= 0xB743 || // Lo  [27] HANGUL SYLLABLE DDEUG..HANGUL SYLLABLE DDEUH
-  0xB745 <= code && code <= 0xB75F || // Lo  [27] HANGUL SYLLABLE DDYIG..HANGUL SYLLABLE DDYIH
-  0xB761 <= code && code <= 0xB77B || // Lo  [27] HANGUL SYLLABLE DDIG..HANGUL SYLLABLE DDIH
-  0xB77D <= code && code <= 0xB797 || // Lo  [27] HANGUL SYLLABLE RAG..HANGUL SYLLABLE RAH
-  0xB799 <= code && code <= 0xB7B3 || // Lo  [27] HANGUL SYLLABLE RAEG..HANGUL SYLLABLE RAEH
-  0xB7B5 <= code && code <= 0xB7CF || // Lo  [27] HANGUL SYLLABLE RYAG..HANGUL SYLLABLE RYAH
-  0xB7D1 <= code && code <= 0xB7EB || // Lo  [27] HANGUL SYLLABLE RYAEG..HANGUL SYLLABLE RYAEH
-  0xB7ED <= code && code <= 0xB807 || // Lo  [27] HANGUL SYLLABLE REOG..HANGUL SYLLABLE REOH
-  0xB809 <= code && code <= 0xB823 || // Lo  [27] HANGUL SYLLABLE REG..HANGUL SYLLABLE REH
-  0xB825 <= code && code <= 0xB83F || // Lo  [27] HANGUL SYLLABLE RYEOG..HANGUL SYLLABLE RYEOH
-  0xB841 <= code && code <= 0xB85B || // Lo  [27] HANGUL SYLLABLE RYEG..HANGUL SYLLABLE RYEH
-  0xB85D <= code && code <= 0xB877 || // Lo  [27] HANGUL SYLLABLE ROG..HANGUL SYLLABLE ROH
-  0xB879 <= code && code <= 0xB893 || // Lo  [27] HANGUL SYLLABLE RWAG..HANGUL SYLLABLE RWAH
-  0xB895 <= code && code <= 0xB8AF || // Lo  [27] HANGUL SYLLABLE RWAEG..HANGUL SYLLABLE RWAEH
-  0xB8B1 <= code && code <= 0xB8CB || // Lo  [27] HANGUL SYLLABLE ROEG..HANGUL SYLLABLE ROEH
-  0xB8CD <= code && code <= 0xB8E7 || // Lo  [27] HANGUL SYLLABLE RYOG..HANGUL SYLLABLE RYOH
-  0xB8E9 <= code && code <= 0xB903 || // Lo  [27] HANGUL SYLLABLE RUG..HANGUL SYLLABLE RUH
-  0xB905 <= code && code <= 0xB91F || // Lo  [27] HANGUL SYLLABLE RWEOG..HANGUL SYLLABLE RWEOH
-  0xB921 <= code && code <= 0xB93B || // Lo  [27] HANGUL SYLLABLE RWEG..HANGUL SYLLABLE RWEH
-  0xB93D <= code && code <= 0xB957 || // Lo  [27] HANGUL SYLLABLE RWIG..HANGUL SYLLABLE RWIH
-  0xB959 <= code && code <= 0xB973 || // Lo  [27] HANGUL SYLLABLE RYUG..HANGUL SYLLABLE RYUH
-  0xB975 <= code && code <= 0xB98F || // Lo  [27] HANGUL SYLLABLE REUG..HANGUL SYLLABLE REUH
-  0xB991 <= code && code <= 0xB9AB || // Lo  [27] HANGUL SYLLABLE RYIG..HANGUL SYLLABLE RYIH
-  0xB9AD <= code && code <= 0xB9C7 || // Lo  [27] HANGUL SYLLABLE RIG..HANGUL SYLLABLE RIH
-  0xB9C9 <= code && code <= 0xB9E3 || // Lo  [27] HANGUL SYLLABLE MAG..HANGUL SYLLABLE MAH
-  0xB9E5 <= code && code <= 0xB9FF || // Lo  [27] HANGUL SYLLABLE MAEG..HANGUL SYLLABLE MAEH
-  0xBA01 <= code && code <= 0xBA1B || // Lo  [27] HANGUL SYLLABLE MYAG..HANGUL SYLLABLE MYAH
-  0xBA1D <= code && code <= 0xBA37 || // Lo  [27] HANGUL SYLLABLE MYAEG..HANGUL SYLLABLE MYAEH
-  0xBA39 <= code && code <= 0xBA53 || // Lo  [27] HANGUL SYLLABLE MEOG..HANGUL SYLLABLE MEOH
-  0xBA55 <= code && code <= 0xBA6F || // Lo  [27] HANGUL SYLLABLE MEG..HANGUL SYLLABLE MEH
-  0xBA71 <= code && code <= 0xBA8B || // Lo  [27] HANGUL SYLLABLE MYEOG..HANGUL SYLLABLE MYEOH
-  0xBA8D <= code && code <= 0xBAA7 || // Lo  [27] HANGUL SYLLABLE MYEG..HANGUL SYLLABLE MYEH
-  0xBAA9 <= code && code <= 0xBAC3 || // Lo  [27] HANGUL SYLLABLE MOG..HANGUL SYLLABLE MOH
-  0xBAC5 <= code && code <= 0xBADF || // Lo  [27] HANGUL SYLLABLE MWAG..HANGUL SYLLABLE MWAH
-  0xBAE1 <= code && code <= 0xBAFB || // Lo  [27] HANGUL SYLLABLE MWAEG..HANGUL SYLLABLE MWAEH
-  0xBAFD <= code && code <= 0xBB17 || // Lo  [27] HANGUL SYLLABLE MOEG..HANGUL SYLLABLE MOEH
-  0xBB19 <= code && code <= 0xBB33 || // Lo  [27] HANGUL SYLLABLE MYOG..HANGUL SYLLABLE MYOH
-  0xBB35 <= code && code <= 0xBB4F || // Lo  [27] HANGUL SYLLABLE MUG..HANGUL SYLLABLE MUH
-  0xBB51 <= code && code <= 0xBB6B || // Lo  [27] HANGUL SYLLABLE MWEOG..HANGUL SYLLABLE MWEOH
-  0xBB6D <= code && code <= 0xBB87 || // Lo  [27] HANGUL SYLLABLE MWEG..HANGUL SYLLABLE MWEH
-  0xBB89 <= code && code <= 0xBBA3 || // Lo  [27] HANGUL SYLLABLE MWIG..HANGUL SYLLABLE MWIH
-  0xBBA5 <= code && code <= 0xBBBF || // Lo  [27] HANGUL SYLLABLE MYUG..HANGUL SYLLABLE MYUH
-  0xBBC1 <= code && code <= 0xBBDB || // Lo  [27] HANGUL SYLLABLE MEUG..HANGUL SYLLABLE MEUH
-  0xBBDD <= code && code <= 0xBBF7 || // Lo  [27] HANGUL SYLLABLE MYIG..HANGUL SYLLABLE MYIH
-  0xBBF9 <= code && code <= 0xBC13 || // Lo  [27] HANGUL SYLLABLE MIG..HANGUL SYLLABLE MIH
-  0xBC15 <= code && code <= 0xBC2F || // Lo  [27] HANGUL SYLLABLE BAG..HANGUL SYLLABLE BAH
-  0xBC31 <= code && code <= 0xBC4B || // Lo  [27] HANGUL SYLLABLE BAEG..HANGUL SYLLABLE BAEH
-  0xBC4D <= code && code <= 0xBC67 || // Lo  [27] HANGUL SYLLABLE BYAG..HANGUL SYLLABLE BYAH
-  0xBC69 <= code && code <= 0xBC83 || // Lo  [27] HANGUL SYLLABLE BYAEG..HANGUL SYLLABLE BYAEH
-  0xBC85 <= code && code <= 0xBC9F || // Lo  [27] HANGUL SYLLABLE BEOG..HANGUL SYLLABLE BEOH
-  0xBCA1 <= code && code <= 0xBCBB || // Lo  [27] HANGUL SYLLABLE BEG..HANGUL SYLLABLE BEH
-  0xBCBD <= code && code <= 0xBCD7 || // Lo  [27] HANGUL SYLLABLE BYEOG..HANGUL SYLLABLE BYEOH
-  0xBCD9 <= code && code <= 0xBCF3 || // Lo  [27] HANGUL SYLLABLE BYEG..HANGUL SYLLABLE BYEH
-  0xBCF5 <= code && code <= 0xBD0F || // Lo  [27] HANGUL SYLLABLE BOG..HANGUL SYLLABLE BOH
-  0xBD11 <= code && code <= 0xBD2B || // Lo  [27] HANGUL SYLLABLE BWAG..HANGUL SYLLABLE BWAH
-  0xBD2D <= code && code <= 0xBD47 || // Lo  [27] HANGUL SYLLABLE BWAEG..HANGUL SYLLABLE BWAEH
-  0xBD49 <= code && code <= 0xBD63 || // Lo  [27] HANGUL SYLLABLE BOEG..HANGUL SYLLABLE BOEH
-  0xBD65 <= code && code <= 0xBD7F || // Lo  [27] HANGUL SYLLABLE BYOG..HANGUL SYLLABLE BYOH
-  0xBD81 <= code && code <= 0xBD9B || // Lo  [27] HANGUL SYLLABLE BUG..HANGUL SYLLABLE BUH
-  0xBD9D <= code && code <= 0xBDB7 || // Lo  [27] HANGUL SYLLABLE BWEOG..HANGUL SYLLABLE BWEOH
-  0xBDB9 <= code && code <= 0xBDD3 || // Lo  [27] HANGUL SYLLABLE BWEG..HANGUL SYLLABLE BWEH
-  0xBDD5 <= code && code <= 0xBDEF || // Lo  [27] HANGUL SYLLABLE BWIG..HANGUL SYLLABLE BWIH
-  0xBDF1 <= code && code <= 0xBE0B || // Lo  [27] HANGUL SYLLABLE BYUG..HANGUL SYLLABLE BYUH
-  0xBE0D <= code && code <= 0xBE27 || // Lo  [27] HANGUL SYLLABLE BEUG..HANGUL SYLLABLE BEUH
-  0xBE29 <= code && code <= 0xBE43 || // Lo  [27] HANGUL SYLLABLE BYIG..HANGUL SYLLABLE BYIH
-  0xBE45 <= code && code <= 0xBE5F || // Lo  [27] HANGUL SYLLABLE BIG..HANGUL SYLLABLE BIH
-  0xBE61 <= code && code <= 0xBE7B || // Lo  [27] HANGUL SYLLABLE BBAG..HANGUL SYLLABLE BBAH
-  0xBE7D <= code && code <= 0xBE97 || // Lo  [27] HANGUL SYLLABLE BBAEG..HANGUL SYLLABLE BBAEH
-  0xBE99 <= code && code <= 0xBEB3 || // Lo  [27] HANGUL SYLLABLE BBYAG..HANGUL SYLLABLE BBYAH
-  0xBEB5 <= code && code <= 0xBECF || // Lo  [27] HANGUL SYLLABLE BBYAEG..HANGUL SYLLABLE BBYAEH
-  0xBED1 <= code && code <= 0xBEEB || // Lo  [27] HANGUL SYLLABLE BBEOG..HANGUL SYLLABLE BBEOH
-  0xBEED <= code && code <= 0xBF07 || // Lo  [27] HANGUL SYLLABLE BBEG..HANGUL SYLLABLE BBEH
-  0xBF09 <= code && code <= 0xBF23 || // Lo  [27] HANGUL SYLLABLE BBYEOG..HANGUL SYLLABLE BBYEOH
-  0xBF25 <= code && code <= 0xBF3F || // Lo  [27] HANGUL SYLLABLE BBYEG..HANGUL SYLLABLE BBYEH
-  0xBF41 <= code && code <= 0xBF5B || // Lo  [27] HANGUL SYLLABLE BBOG..HANGUL SYLLABLE BBOH
-  0xBF5D <= code && code <= 0xBF77 || // Lo  [27] HANGUL SYLLABLE BBWAG..HANGUL SYLLABLE BBWAH
-  0xBF79 <= code && code <= 0xBF93 || // Lo  [27] HANGUL SYLLABLE BBWAEG..HANGUL SYLLABLE BBWAEH
-  0xBF95 <= code && code <= 0xBFAF || // Lo  [27] HANGUL SYLLABLE BBOEG..HANGUL SYLLABLE BBOEH
-  0xBFB1 <= code && code <= 0xBFCB || // Lo  [27] HANGUL SYLLABLE BBYOG..HANGUL SYLLABLE BBYOH
-  0xBFCD <= code && code <= 0xBFE7 || // Lo  [27] HANGUL SYLLABLE BBUG..HANGUL SYLLABLE BBUH
-  0xBFE9 <= code && code <= 0xC003 || // Lo  [27] HANGUL SYLLABLE BBWEOG..HANGUL SYLLABLE BBWEOH
-  0xC005 <= code && code <= 0xC01F || // Lo  [27] HANGUL SYLLABLE BBWEG..HANGUL SYLLABLE BBWEH
-  0xC021 <= code && code <= 0xC03B || // Lo  [27] HANGUL SYLLABLE BBWIG..HANGUL SYLLABLE BBWIH
-  0xC03D <= code && code <= 0xC057 || // Lo  [27] HANGUL SYLLABLE BBYUG..HANGUL SYLLABLE BBYUH
-  0xC059 <= code && code <= 0xC073 || // Lo  [27] HANGUL SYLLABLE BBEUG..HANGUL SYLLABLE BBEUH
-  0xC075 <= code && code <= 0xC08F || // Lo  [27] HANGUL SYLLABLE BBYIG..HANGUL SYLLABLE BBYIH
-  0xC091 <= code && code <= 0xC0AB || // Lo  [27] HANGUL SYLLABLE BBIG..HANGUL SYLLABLE BBIH
-  0xC0AD <= code && code <= 0xC0C7 || // Lo  [27] HANGUL SYLLABLE SAG..HANGUL SYLLABLE SAH
-  0xC0C9 <= code && code <= 0xC0E3 || // Lo  [27] HANGUL SYLLABLE SAEG..HANGUL SYLLABLE SAEH
-  0xC0E5 <= code && code <= 0xC0FF || // Lo  [27] HANGUL SYLLABLE SYAG..HANGUL SYLLABLE SYAH
-  0xC101 <= code && code <= 0xC11B || // Lo  [27] HANGUL SYLLABLE SYAEG..HANGUL SYLLABLE SYAEH
-  0xC11D <= code && code <= 0xC137 || // Lo  [27] HANGUL SYLLABLE SEOG..HANGUL SYLLABLE SEOH
-  0xC139 <= code && code <= 0xC153 || // Lo  [27] HANGUL SYLLABLE SEG..HANGUL SYLLABLE SEH
-  0xC155 <= code && code <= 0xC16F || // Lo  [27] HANGUL SYLLABLE SYEOG..HANGUL SYLLABLE SYEOH
-  0xC171 <= code && code <= 0xC18B || // Lo  [27] HANGUL SYLLABLE SYEG..HANGUL SYLLABLE SYEH
-  0xC18D <= code && code <= 0xC1A7 || // Lo  [27] HANGUL SYLLABLE SOG..HANGUL SYLLABLE SOH
-  0xC1A9 <= code && code <= 0xC1C3 || // Lo  [27] HANGUL SYLLABLE SWAG..HANGUL SYLLABLE SWAH
-  0xC1C5 <= code && code <= 0xC1DF || // Lo  [27] HANGUL SYLLABLE SWAEG..HANGUL SYLLABLE SWAEH
-  0xC1E1 <= code && code <= 0xC1FB || // Lo  [27] HANGUL SYLLABLE SOEG..HANGUL SYLLABLE SOEH
-  0xC1FD <= code && code <= 0xC217 || // Lo  [27] HANGUL SYLLABLE SYOG..HANGUL SYLLABLE SYOH
-  0xC219 <= code && code <= 0xC233 || // Lo  [27] HANGUL SYLLABLE SUG..HANGUL SYLLABLE SUH
-  0xC235 <= code && code <= 0xC24F || // Lo  [27] HANGUL SYLLABLE SWEOG..HANGUL SYLLABLE SWEOH
-  0xC251 <= code && code <= 0xC26B || // Lo  [27] HANGUL SYLLABLE SWEG..HANGUL SYLLABLE SWEH
-  0xC26D <= code && code <= 0xC287 || // Lo  [27] HANGUL SYLLABLE SWIG..HANGUL SYLLABLE SWIH
-  0xC289 <= code && code <= 0xC2A3 || // Lo  [27] HANGUL SYLLABLE SYUG..HANGUL SYLLABLE SYUH
-  0xC2A5 <= code && code <= 0xC2BF || // Lo  [27] HANGUL SYLLABLE SEUG..HANGUL SYLLABLE SEUH
-  0xC2C1 <= code && code <= 0xC2DB || // Lo  [27] HANGUL SYLLABLE SYIG..HANGUL SYLLABLE SYIH
-  0xC2DD <= code && code <= 0xC2F7 || // Lo  [27] HANGUL SYLLABLE SIG..HANGUL SYLLABLE SIH
-  0xC2F9 <= code && code <= 0xC313 || // Lo  [27] HANGUL SYLLABLE SSAG..HANGUL SYLLABLE SSAH
-  0xC315 <= code && code <= 0xC32F || // Lo  [27] HANGUL SYLLABLE SSAEG..HANGUL SYLLABLE SSAEH
-  0xC331 <= code && code <= 0xC34B || // Lo  [27] HANGUL SYLLABLE SSYAG..HANGUL SYLLABLE SSYAH
-  0xC34D <= code && code <= 0xC367 || // Lo  [27] HANGUL SYLLABLE SSYAEG..HANGUL SYLLABLE SSYAEH
-  0xC369 <= code && code <= 0xC383 || // Lo  [27] HANGUL SYLLABLE SSEOG..HANGUL SYLLABLE SSEOH
-  0xC385 <= code && code <= 0xC39F || // Lo  [27] HANGUL SYLLABLE SSEG..HANGUL SYLLABLE SSEH
-  0xC3A1 <= code && code <= 0xC3BB || // Lo  [27] HANGUL SYLLABLE SSYEOG..HANGUL SYLLABLE SSYEOH
-  0xC3BD <= code && code <= 0xC3D7 || // Lo  [27] HANGUL SYLLABLE SSYEG..HANGUL SYLLABLE SSYEH
-  0xC3D9 <= code && code <= 0xC3F3 || // Lo  [27] HANGUL SYLLABLE SSOG..HANGUL SYLLABLE SSOH
-  0xC3F5 <= code && code <= 0xC40F || // Lo  [27] HANGUL SYLLABLE SSWAG..HANGUL SYLLABLE SSWAH
-  0xC411 <= code && code <= 0xC42B || // Lo  [27] HANGUL SYLLABLE SSWAEG..HANGUL SYLLABLE SSWAEH
-  0xC42D <= code && code <= 0xC447 || // Lo  [27] HANGUL SYLLABLE SSOEG..HANGUL SYLLABLE SSOEH
-  0xC449 <= code && code <= 0xC463 || // Lo  [27] HANGUL SYLLABLE SSYOG..HANGUL SYLLABLE SSYOH
-  0xC465 <= code && code <= 0xC47F || // Lo  [27] HANGUL SYLLABLE SSUG..HANGUL SYLLABLE SSUH
-  0xC481 <= code && code <= 0xC49B || // Lo  [27] HANGUL SYLLABLE SSWEOG..HANGUL SYLLABLE SSWEOH
-  0xC49D <= code && code <= 0xC4B7 || // Lo  [27] HANGUL SYLLABLE SSWEG..HANGUL SYLLABLE SSWEH
-  0xC4B9 <= code && code <= 0xC4D3 || // Lo  [27] HANGUL SYLLABLE SSWIG..HANGUL SYLLABLE SSWIH
-  0xC4D5 <= code && code <= 0xC4EF || // Lo  [27] HANGUL SYLLABLE SSYUG..HANGUL SYLLABLE SSYUH
-  0xC4F1 <= code && code <= 0xC50B || // Lo  [27] HANGUL SYLLABLE SSEUG..HANGUL SYLLABLE SSEUH
-  0xC50D <= code && code <= 0xC527 || // Lo  [27] HANGUL SYLLABLE SSYIG..HANGUL SYLLABLE SSYIH
-  0xC529 <= code && code <= 0xC543 || // Lo  [27] HANGUL SYLLABLE SSIG..HANGUL SYLLABLE SSIH
-  0xC545 <= code && code <= 0xC55F || // Lo  [27] HANGUL SYLLABLE AG..HANGUL SYLLABLE AH
-  0xC561 <= code && code <= 0xC57B || // Lo  [27] HANGUL SYLLABLE AEG..HANGUL SYLLABLE AEH
-  0xC57D <= code && code <= 0xC597 || // Lo  [27] HANGUL SYLLABLE YAG..HANGUL SYLLABLE YAH
-  0xC599 <= code && code <= 0xC5B3 || // Lo  [27] HANGUL SYLLABLE YAEG..HANGUL SYLLABLE YAEH
-  0xC5B5 <= code && code <= 0xC5CF || // Lo  [27] HANGUL SYLLABLE EOG..HANGUL SYLLABLE EOH
-  0xC5D1 <= code && code <= 0xC5EB || // Lo  [27] HANGUL SYLLABLE EG..HANGUL SYLLABLE EH
-  0xC5ED <= code && code <= 0xC607 || // Lo  [27] HANGUL SYLLABLE YEOG..HANGUL SYLLABLE YEOH
-  0xC609 <= code && code <= 0xC623 || // Lo  [27] HANGUL SYLLABLE YEG..HANGUL SYLLABLE YEH
-  0xC625 <= code && code <= 0xC63F || // Lo  [27] HANGUL SYLLABLE OG..HANGUL SYLLABLE OH
-  0xC641 <= code && code <= 0xC65B || // Lo  [27] HANGUL SYLLABLE WAG..HANGUL SYLLABLE WAH
-  0xC65D <= code && code <= 0xC677 || // Lo  [27] HANGUL SYLLABLE WAEG..HANGUL SYLLABLE WAEH
-  0xC679 <= code && code <= 0xC693 || // Lo  [27] HANGUL SYLLABLE OEG..HANGUL SYLLABLE OEH
-  0xC695 <= code && code <= 0xC6AF || // Lo  [27] HANGUL SYLLABLE YOG..HANGUL SYLLABLE YOH
-  0xC6B1 <= code && code <= 0xC6CB || // Lo  [27] HANGUL SYLLABLE UG..HANGUL SYLLABLE UH
-  0xC6CD <= code && code <= 0xC6E7 || // Lo  [27] HANGUL SYLLABLE WEOG..HANGUL SYLLABLE WEOH
-  0xC6E9 <= code && code <= 0xC703 || // Lo  [27] HANGUL SYLLABLE WEG..HANGUL SYLLABLE WEH
-  0xC705 <= code && code <= 0xC71F || // Lo  [27] HANGUL SYLLABLE WIG..HANGUL SYLLABLE WIH
-  0xC721 <= code && code <= 0xC73B || // Lo  [27] HANGUL SYLLABLE YUG..HANGUL SYLLABLE YUH
-  0xC73D <= code && code <= 0xC757 || // Lo  [27] HANGUL SYLLABLE EUG..HANGUL SYLLABLE EUH
-  0xC759 <= code && code <= 0xC773 || // Lo  [27] HANGUL SYLLABLE YIG..HANGUL SYLLABLE YIH
-  0xC775 <= code && code <= 0xC78F || // Lo  [27] HANGUL SYLLABLE IG..HANGUL SYLLABLE IH
-  0xC791 <= code && code <= 0xC7AB || // Lo  [27] HANGUL SYLLABLE JAG..HANGUL SYLLABLE JAH
-  0xC7AD <= code && code <= 0xC7C7 || // Lo  [27] HANGUL SYLLABLE JAEG..HANGUL SYLLABLE JAEH
-  0xC7C9 <= code && code <= 0xC7E3 || // Lo  [27] HANGUL SYLLABLE JYAG..HANGUL SYLLABLE JYAH
-  0xC7E5 <= code && code <= 0xC7FF || // Lo  [27] HANGUL SYLLABLE JYAEG..HANGUL SYLLABLE JYAEH
-  0xC801 <= code && code <= 0xC81B || // Lo  [27] HANGUL SYLLABLE JEOG..HANGUL SYLLABLE JEOH
-  0xC81D <= code && code <= 0xC837 || // Lo  [27] HANGUL SYLLABLE JEG..HANGUL SYLLABLE JEH
-  0xC839 <= code && code <= 0xC853 || // Lo  [27] HANGUL SYLLABLE JYEOG..HANGUL SYLLABLE JYEOH
-  0xC855 <= code && code <= 0xC86F || // Lo  [27] HANGUL SYLLABLE JYEG..HANGUL SYLLABLE JYEH
-  0xC871 <= code && code <= 0xC88B || // Lo  [27] HANGUL SYLLABLE JOG..HANGUL SYLLABLE JOH
-  0xC88D <= code && code <= 0xC8A7 || // Lo  [27] HANGUL SYLLABLE JWAG..HANGUL SYLLABLE JWAH
-  0xC8A9 <= code && code <= 0xC8C3 || // Lo  [27] HANGUL SYLLABLE JWAEG..HANGUL SYLLABLE JWAEH
-  0xC8C5 <= code && code <= 0xC8DF || // Lo  [27] HANGUL SYLLABLE JOEG..HANGUL SYLLABLE JOEH
-  0xC8E1 <= code && code <= 0xC8FB || // Lo  [27] HANGUL SYLLABLE JYOG..HANGUL SYLLABLE JYOH
-  0xC8FD <= code && code <= 0xC917 || // Lo  [27] HANGUL SYLLABLE JUG..HANGUL SYLLABLE JUH
-  0xC919 <= code && code <= 0xC933 || // Lo  [27] HANGUL SYLLABLE JWEOG..HANGUL SYLLABLE JWEOH
-  0xC935 <= code && code <= 0xC94F || // Lo  [27] HANGUL SYLLABLE JWEG..HANGUL SYLLABLE JWEH
-  0xC951 <= code && code <= 0xC96B || // Lo  [27] HANGUL SYLLABLE JWIG..HANGUL SYLLABLE JWIH
-  0xC96D <= code && code <= 0xC987 || // Lo  [27] HANGUL SYLLABLE JYUG..HANGUL SYLLABLE JYUH
-  0xC989 <= code && code <= 0xC9A3 || // Lo  [27] HANGUL SYLLABLE JEUG..HANGUL SYLLABLE JEUH
-  0xC9A5 <= code && code <= 0xC9BF || // Lo  [27] HANGUL SYLLABLE JYIG..HANGUL SYLLABLE JYIH
-  0xC9C1 <= code && code <= 0xC9DB || // Lo  [27] HANGUL SYLLABLE JIG..HANGUL SYLLABLE JIH
-  0xC9DD <= code && code <= 0xC9F7 || // Lo  [27] HANGUL SYLLABLE JJAG..HANGUL SYLLABLE JJAH
-  0xC9F9 <= code && code <= 0xCA13 || // Lo  [27] HANGUL SYLLABLE JJAEG..HANGUL SYLLABLE JJAEH
-  0xCA15 <= code && code <= 0xCA2F || // Lo  [27] HANGUL SYLLABLE JJYAG..HANGUL SYLLABLE JJYAH
-  0xCA31 <= code && code <= 0xCA4B || // Lo  [27] HANGUL SYLLABLE JJYAEG..HANGUL SYLLABLE JJYAEH
-  0xCA4D <= code && code <= 0xCA67 || // Lo  [27] HANGUL SYLLABLE JJEOG..HANGUL SYLLABLE JJEOH
-  0xCA69 <= code && code <= 0xCA83 || // Lo  [27] HANGUL SYLLABLE JJEG..HANGUL SYLLABLE JJEH
-  0xCA85 <= code && code <= 0xCA9F || // Lo  [27] HANGUL SYLLABLE JJYEOG..HANGUL SYLLABLE JJYEOH
-  0xCAA1 <= code && code <= 0xCABB || // Lo  [27] HANGUL SYLLABLE JJYEG..HANGUL SYLLABLE JJYEH
-  0xCABD <= code && code <= 0xCAD7 || // Lo  [27] HANGUL SYLLABLE JJOG..HANGUL SYLLABLE JJOH
-  0xCAD9 <= code && code <= 0xCAF3 || // Lo  [27] HANGUL SYLLABLE JJWAG..HANGUL SYLLABLE JJWAH
-  0xCAF5 <= code && code <= 0xCB0F || // Lo  [27] HANGUL SYLLABLE JJWAEG..HANGUL SYLLABLE JJWAEH
-  0xCB11 <= code && code <= 0xCB2B || // Lo  [27] HANGUL SYLLABLE JJOEG..HANGUL SYLLABLE JJOEH
-  0xCB2D <= code && code <= 0xCB47 || // Lo  [27] HANGUL SYLLABLE JJYOG..HANGUL SYLLABLE JJYOH
-  0xCB49 <= code && code <= 0xCB63 || // Lo  [27] HANGUL SYLLABLE JJUG..HANGUL SYLLABLE JJUH
-  0xCB65 <= code && code <= 0xCB7F || // Lo  [27] HANGUL SYLLABLE JJWEOG..HANGUL SYLLABLE JJWEOH
-  0xCB81 <= code && code <= 0xCB9B || // Lo  [27] HANGUL SYLLABLE JJWEG..HANGUL SYLLABLE JJWEH
-  0xCB9D <= code && code <= 0xCBB7 || // Lo  [27] HANGUL SYLLABLE JJWIG..HANGUL SYLLABLE JJWIH
-  0xCBB9 <= code && code <= 0xCBD3 || // Lo  [27] HANGUL SYLLABLE JJYUG..HANGUL SYLLABLE JJYUH
-  0xCBD5 <= code && code <= 0xCBEF || // Lo  [27] HANGUL SYLLABLE JJEUG..HANGUL SYLLABLE JJEUH
-  0xCBF1 <= code && code <= 0xCC0B || // Lo  [27] HANGUL SYLLABLE JJYIG..HANGUL SYLLABLE JJYIH
-  0xCC0D <= code && code <= 0xCC27 || // Lo  [27] HANGUL SYLLABLE JJIG..HANGUL SYLLABLE JJIH
-  0xCC29 <= code && code <= 0xCC43 || // Lo  [27] HANGUL SYLLABLE CAG..HANGUL SYLLABLE CAH
-  0xCC45 <= code && code <= 0xCC5F || // Lo  [27] HANGUL SYLLABLE CAEG..HANGUL SYLLABLE CAEH
-  0xCC61 <= code && code <= 0xCC7B || // Lo  [27] HANGUL SYLLABLE CYAG..HANGUL SYLLABLE CYAH
-  0xCC7D <= code && code <= 0xCC97 || // Lo  [27] HANGUL SYLLABLE CYAEG..HANGUL SYLLABLE CYAEH
-  0xCC99 <= code && code <= 0xCCB3 || // Lo  [27] HANGUL SYLLABLE CEOG..HANGUL SYLLABLE CEOH
-  0xCCB5 <= code && code <= 0xCCCF || // Lo  [27] HANGUL SYLLABLE CEG..HANGUL SYLLABLE CEH
-  0xCCD1 <= code && code <= 0xCCEB || // Lo  [27] HANGUL SYLLABLE CYEOG..HANGUL SYLLABLE CYEOH
-  0xCCED <= code && code <= 0xCD07 || // Lo  [27] HANGUL SYLLABLE CYEG..HANGUL SYLLABLE CYEH
-  0xCD09 <= code && code <= 0xCD23 || // Lo  [27] HANGUL SYLLABLE COG..HANGUL SYLLABLE COH
-  0xCD25 <= code && code <= 0xCD3F || // Lo  [27] HANGUL SYLLABLE CWAG..HANGUL SYLLABLE CWAH
-  0xCD41 <= code && code <= 0xCD5B || // Lo  [27] HANGUL SYLLABLE CWAEG..HANGUL SYLLABLE CWAEH
-  0xCD5D <= code && code <= 0xCD77 || // Lo  [27] HANGUL SYLLABLE COEG..HANGUL SYLLABLE COEH
-  0xCD79 <= code && code <= 0xCD93 || // Lo  [27] HANGUL SYLLABLE CYOG..HANGUL SYLLABLE CYOH
-  0xCD95 <= code && code <= 0xCDAF || // Lo  [27] HANGUL SYLLABLE CUG..HANGUL SYLLABLE CUH
-  0xCDB1 <= code && code <= 0xCDCB || // Lo  [27] HANGUL SYLLABLE CWEOG..HANGUL SYLLABLE CWEOH
-  0xCDCD <= code && code <= 0xCDE7 || // Lo  [27] HANGUL SYLLABLE CWEG..HANGUL SYLLABLE CWEH
-  0xCDE9 <= code && code <= 0xCE03 || // Lo  [27] HANGUL SYLLABLE CWIG..HANGUL SYLLABLE CWIH
-  0xCE05 <= code && code <= 0xCE1F || // Lo  [27] HANGUL SYLLABLE CYUG..HANGUL SYLLABLE CYUH
-  0xCE21 <= code && code <= 0xCE3B || // Lo  [27] HANGUL SYLLABLE CEUG..HANGUL SYLLABLE CEUH
-  0xCE3D <= code && code <= 0xCE57 || // Lo  [27] HANGUL SYLLABLE CYIG..HANGUL SYLLABLE CYIH
-  0xCE59 <= code && code <= 0xCE73 || // Lo  [27] HANGUL SYLLABLE CIG..HANGUL SYLLABLE CIH
-  0xCE75 <= code && code <= 0xCE8F || // Lo  [27] HANGUL SYLLABLE KAG..HANGUL SYLLABLE KAH
-  0xCE91 <= code && code <= 0xCEAB || // Lo  [27] HANGUL SYLLABLE KAEG..HANGUL SYLLABLE KAEH
-  0xCEAD <= code && code <= 0xCEC7 || // Lo  [27] HANGUL SYLLABLE KYAG..HANGUL SYLLABLE KYAH
-  0xCEC9 <= code && code <= 0xCEE3 || // Lo  [27] HANGUL SYLLABLE KYAEG..HANGUL SYLLABLE KYAEH
-  0xCEE5 <= code && code <= 0xCEFF || // Lo  [27] HANGUL SYLLABLE KEOG..HANGUL SYLLABLE KEOH
-  0xCF01 <= code && code <= 0xCF1B || // Lo  [27] HANGUL SYLLABLE KEG..HANGUL SYLLABLE KEH
-  0xCF1D <= code && code <= 0xCF37 || // Lo  [27] HANGUL SYLLABLE KYEOG..HANGUL SYLLABLE KYEOH
-  0xCF39 <= code && code <= 0xCF53 || // Lo  [27] HANGUL SYLLABLE KYEG..HANGUL SYLLABLE KYEH
-  0xCF55 <= code && code <= 0xCF6F || // Lo  [27] HANGUL SYLLABLE KOG..HANGUL SYLLABLE KOH
-  0xCF71 <= code && code <= 0xCF8B || // Lo  [27] HANGUL SYLLABLE KWAG..HANGUL SYLLABLE KWAH
-  0xCF8D <= code && code <= 0xCFA7 || // Lo  [27] HANGUL SYLLABLE KWAEG..HANGUL SYLLABLE KWAEH
-  0xCFA9 <= code && code <= 0xCFC3 || // Lo  [27] HANGUL SYLLABLE KOEG..HANGUL SYLLABLE KOEH
-  0xCFC5 <= code && code <= 0xCFDF || // Lo  [27] HANGUL SYLLABLE KYOG..HANGUL SYLLABLE KYOH
-  0xCFE1 <= code && code <= 0xCFFB || // Lo  [27] HANGUL SYLLABLE KUG..HANGUL SYLLABLE KUH
-  0xCFFD <= code && code <= 0xD017 || // Lo  [27] HANGUL SYLLABLE KWEOG..HANGUL SYLLABLE KWEOH
-  0xD019 <= code && code <= 0xD033 || // Lo  [27] HANGUL SYLLABLE KWEG..HANGUL SYLLABLE KWEH
-  0xD035 <= code && code <= 0xD04F || // Lo  [27] HANGUL SYLLABLE KWIG..HANGUL SYLLABLE KWIH
-  0xD051 <= code && code <= 0xD06B || // Lo  [27] HANGUL SYLLABLE KYUG..HANGUL SYLLABLE KYUH
-  0xD06D <= code && code <= 0xD087 || // Lo  [27] HANGUL SYLLABLE KEUG..HANGUL SYLLABLE KEUH
-  0xD089 <= code && code <= 0xD0A3 || // Lo  [27] HANGUL SYLLABLE KYIG..HANGUL SYLLABLE KYIH
-  0xD0A5 <= code && code <= 0xD0BF || // Lo  [27] HANGUL SYLLABLE KIG..HANGUL SYLLABLE KIH
-  0xD0C1 <= code && code <= 0xD0DB || // Lo  [27] HANGUL SYLLABLE TAG..HANGUL SYLLABLE TAH
-  0xD0DD <= code && code <= 0xD0F7 || // Lo  [27] HANGUL SYLLABLE TAEG..HANGUL SYLLABLE TAEH
-  0xD0F9 <= code && code <= 0xD113 || // Lo  [27] HANGUL SYLLABLE TYAG..HANGUL SYLLABLE TYAH
-  0xD115 <= code && code <= 0xD12F || // Lo  [27] HANGUL SYLLABLE TYAEG..HANGUL SYLLABLE TYAEH
-  0xD131 <= code && code <= 0xD14B || // Lo  [27] HANGUL SYLLABLE TEOG..HANGUL SYLLABLE TEOH
-  0xD14D <= code && code <= 0xD167 || // Lo  [27] HANGUL SYLLABLE TEG..HANGUL SYLLABLE TEH
-  0xD169 <= code && code <= 0xD183 || // Lo  [27] HANGUL SYLLABLE TYEOG..HANGUL SYLLABLE TYEOH
-  0xD185 <= code && code <= 0xD19F || // Lo  [27] HANGUL SYLLABLE TYEG..HANGUL SYLLABLE TYEH
-  0xD1A1 <= code && code <= 0xD1BB || // Lo  [27] HANGUL SYLLABLE TOG..HANGUL SYLLABLE TOH
-  0xD1BD <= code && code <= 0xD1D7 || // Lo  [27] HANGUL SYLLABLE TWAG..HANGUL SYLLABLE TWAH
-  0xD1D9 <= code && code <= 0xD1F3 || // Lo  [27] HANGUL SYLLABLE TWAEG..HANGUL SYLLABLE TWAEH
-  0xD1F5 <= code && code <= 0xD20F || // Lo  [27] HANGUL SYLLABLE TOEG..HANGUL SYLLABLE TOEH
-  0xD211 <= code && code <= 0xD22B || // Lo  [27] HANGUL SYLLABLE TYOG..HANGUL SYLLABLE TYOH
-  0xD22D <= code && code <= 0xD247 || // Lo  [27] HANGUL SYLLABLE TUG..HANGUL SYLLABLE TUH
-  0xD249 <= code && code <= 0xD263 || // Lo  [27] HANGUL SYLLABLE TWEOG..HANGUL SYLLABLE TWEOH
-  0xD265 <= code && code <= 0xD27F || // Lo  [27] HANGUL SYLLABLE TWEG..HANGUL SYLLABLE TWEH
-  0xD281 <= code && code <= 0xD29B || // Lo  [27] HANGUL SYLLABLE TWIG..HANGUL SYLLABLE TWIH
-  0xD29D <= code && code <= 0xD2B7 || // Lo  [27] HANGUL SYLLABLE TYUG..HANGUL SYLLABLE TYUH
-  0xD2B9 <= code && code <= 0xD2D3 || // Lo  [27] HANGUL SYLLABLE TEUG..HANGUL SYLLABLE TEUH
-  0xD2D5 <= code && code <= 0xD2EF || // Lo  [27] HANGUL SYLLABLE TYIG..HANGUL SYLLABLE TYIH
-  0xD2F1 <= code && code <= 0xD30B || // Lo  [27] HANGUL SYLLABLE TIG..HANGUL SYLLABLE TIH
-  0xD30D <= code && code <= 0xD327 || // Lo  [27] HANGUL SYLLABLE PAG..HANGUL SYLLABLE PAH
-  0xD329 <= code && code <= 0xD343 || // Lo  [27] HANGUL SYLLABLE PAEG..HANGUL SYLLABLE PAEH
-  0xD345 <= code && code <= 0xD35F || // Lo  [27] HANGUL SYLLABLE PYAG..HANGUL SYLLABLE PYAH
-  0xD361 <= code && code <= 0xD37B || // Lo  [27] HANGUL SYLLABLE PYAEG..HANGUL SYLLABLE PYAEH
-  0xD37D <= code && code <= 0xD397 || // Lo  [27] HANGUL SYLLABLE PEOG..HANGUL SYLLABLE PEOH
-  0xD399 <= code && code <= 0xD3B3 || // Lo  [27] HANGUL SYLLABLE PEG..HANGUL SYLLABLE PEH
-  0xD3B5 <= code && code <= 0xD3CF || // Lo  [27] HANGUL SYLLABLE PYEOG..HANGUL SYLLABLE PYEOH
-  0xD3D1 <= code && code <= 0xD3EB || // Lo  [27] HANGUL SYLLABLE PYEG..HANGUL SYLLABLE PYEH
-  0xD3ED <= code && code <= 0xD407 || // Lo  [27] HANGUL SYLLABLE POG..HANGUL SYLLABLE POH
-  0xD409 <= code && code <= 0xD423 || // Lo  [27] HANGUL SYLLABLE PWAG..HANGUL SYLLABLE PWAH
-  0xD425 <= code && code <= 0xD43F || // Lo  [27] HANGUL SYLLABLE PWAEG..HANGUL SYLLABLE PWAEH
-  0xD441 <= code && code <= 0xD45B || // Lo  [27] HANGUL SYLLABLE POEG..HANGUL SYLLABLE POEH
-  0xD45D <= code && code <= 0xD477 || // Lo  [27] HANGUL SYLLABLE PYOG..HANGUL SYLLABLE PYOH
-  0xD479 <= code && code <= 0xD493 || // Lo  [27] HANGUL SYLLABLE PUG..HANGUL SYLLABLE PUH
-  0xD495 <= code && code <= 0xD4AF || // Lo  [27] HANGUL SYLLABLE PWEOG..HANGUL SYLLABLE PWEOH
-  0xD4B1 <= code && code <= 0xD4CB || // Lo  [27] HANGUL SYLLABLE PWEG..HANGUL SYLLABLE PWEH
-  0xD4CD <= code && code <= 0xD4E7 || // Lo  [27] HANGUL SYLLABLE PWIG..HANGUL SYLLABLE PWIH
-  0xD4E9 <= code && code <= 0xD503 || // Lo  [27] HANGUL SYLLABLE PYUG..HANGUL SYLLABLE PYUH
-  0xD505 <= code && code <= 0xD51F || // Lo  [27] HANGUL SYLLABLE PEUG..HANGUL SYLLABLE PEUH
-  0xD521 <= code && code <= 0xD53B || // Lo  [27] HANGUL SYLLABLE PYIG..HANGUL SYLLABLE PYIH
-  0xD53D <= code && code <= 0xD557 || // Lo  [27] HANGUL SYLLABLE PIG..HANGUL SYLLABLE PIH
-  0xD559 <= code && code <= 0xD573 || // Lo  [27] HANGUL SYLLABLE HAG..HANGUL SYLLABLE HAH
-  0xD575 <= code && code <= 0xD58F || // Lo  [27] HANGUL SYLLABLE HAEG..HANGUL SYLLABLE HAEH
-  0xD591 <= code && code <= 0xD5AB || // Lo  [27] HANGUL SYLLABLE HYAG..HANGUL SYLLABLE HYAH
-  0xD5AD <= code && code <= 0xD5C7 || // Lo  [27] HANGUL SYLLABLE HYAEG..HANGUL SYLLABLE HYAEH
-  0xD5C9 <= code && code <= 0xD5E3 || // Lo  [27] HANGUL SYLLABLE HEOG..HANGUL SYLLABLE HEOH
-  0xD5E5 <= code && code <= 0xD5FF || // Lo  [27] HANGUL SYLLABLE HEG..HANGUL SYLLABLE HEH
-  0xD601 <= code && code <= 0xD61B || // Lo  [27] HANGUL SYLLABLE HYEOG..HANGUL SYLLABLE HYEOH
-  0xD61D <= code && code <= 0xD637 || // Lo  [27] HANGUL SYLLABLE HYEG..HANGUL SYLLABLE HYEH
-  0xD639 <= code && code <= 0xD653 || // Lo  [27] HANGUL SYLLABLE HOG..HANGUL SYLLABLE HOH
-  0xD655 <= code && code <= 0xD66F || // Lo  [27] HANGUL SYLLABLE HWAG..HANGUL SYLLABLE HWAH
-  0xD671 <= code && code <= 0xD68B || // Lo  [27] HANGUL SYLLABLE HWAEG..HANGUL SYLLABLE HWAEH
-  0xD68D <= code && code <= 0xD6A7 || // Lo  [27] HANGUL SYLLABLE HOEG..HANGUL SYLLABLE HOEH
-  0xD6A9 <= code && code <= 0xD6C3 || // Lo  [27] HANGUL SYLLABLE HYOG..HANGUL SYLLABLE HYOH
-  0xD6C5 <= code && code <= 0xD6DF || // Lo  [27] HANGUL SYLLABLE HUG..HANGUL SYLLABLE HUH
-  0xD6E1 <= code && code <= 0xD6FB || // Lo  [27] HANGUL SYLLABLE HWEOG..HANGUL SYLLABLE HWEOH
-  0xD6FD <= code && code <= 0xD717 || // Lo  [27] HANGUL SYLLABLE HWEG..HANGUL SYLLABLE HWEH
-  0xD719 <= code && code <= 0xD733 || // Lo  [27] HANGUL SYLLABLE HWIG..HANGUL SYLLABLE HWIH
-  0xD735 <= code && code <= 0xD74F || // Lo  [27] HANGUL SYLLABLE HYUG..HANGUL SYLLABLE HYUH
-  0xD751 <= code && code <= 0xD76B || // Lo  [27] HANGUL SYLLABLE HEUG..HANGUL SYLLABLE HEUH
-  0xD76D <= code && code <= 0xD787 || // Lo  [27] HANGUL SYLLABLE HYIG..HANGUL SYLLABLE HYIH
-  0xD789 <= code && code <= 0xD7A3 // Lo  [27] HANGUL SYLLABLE HIG..HANGUL SYLLABLE HIH
-  ) {
-      return LVT;
-    } //all unlisted characters have a grapheme break property of "Other"
-
-
-  return Other;
-}
-
-var _default = {
-  splitGraphemes: splitGraphemes,
-  countGraphemes: countGraphemes,
-  nextBreak: nextBreak
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/lexer.js b/dist/core/lexer.js
deleted file mode 100644
index 623b37e6e..000000000
--- a/dist/core/lexer.js
+++ /dev/null
@@ -1,339 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _graphemeSplitter = _interopRequireDefault(require("./grapheme-splitter.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-/**
- *
- * A token can be of type:
- *  - `literal`: the value is the character this token represents. This can be
- * a combination of Unicode codepoints, for example for emojis.
- *  - `^` and `_`: superscript and subscript commands.
- *  - `command`: a command such as `\sin` or `\text` or `\alpha`
- *  - `{` and `}`: begin and end group (use for arguments of commands and for grouping)
- *  - `#`: parameter
- *
- *  - `placeholder`: a placeholder value meant to be replaced by some actual value
- *  - `space`: one or more space characters (including tab, etc...)
- *
- *  See: [TeX:289](http://tug.org/texlive/devsrc/Build/source/texk/web2c/tex.web)
- * @property {string} value
- * @property {string} type
- * @class module:core/lexer#Token
- * @private
- */
-var Token = function Token(type, value) {
-  _classCallCheck(this, Token);
-
-  this.type = type;
-  this.value = value;
-  console.assert(!(type === 'literal' && value === '}'));
-};
-/**
- * Given a LaTeX expression represented as a character string, 
- * the Lexer class will scan and return Tokens for the lexical 
- * units in the string.
- * 
- * @param {string} s A string of LaTeX
- * @class Lexer
- * @class module:core/lexer#Lexer
- * @private
- */
-
-
-var Lexer =
-/*#__PURE__*/
-function () {
-  function Lexer(s) {
-    _classCallCheck(this, Lexer);
-
-    this.s = _graphemeSplitter.default.splitGraphemes(s);
-    this.pos = 0;
-  }
-  /**
-   * @return {boolean} True if we reached the end of the stream
-   * @method module:core/lexer#Lexer#end
-   * @private
-   */
-
-
-  _createClass(Lexer, [{
-    key: "end",
-    value: function end() {
-      return this.pos >= this.s.length;
-    }
-    /**
-     * Return the next char and advance
-     * @return {string}
-     * @method module:core/lexer#Lexer#get
-     */
-
-  }, {
-    key: "get",
-    value: function get() {
-      return this.pos < this.s.length ? this.s[this.pos++] : null;
-    }
-    /**
-     * Return the next char, but do not advance
-     * @return {string}
-     * @method module:core/lexer#Lexer#peek
-     * @private
-     */
-
-  }, {
-    key: "peek",
-    value: function peek() {
-      return this.s[this.pos];
-    }
-    /**
-     * Return the next substring matching regEx and advance.
-     * @param {RegEx} regEx
-     * @return {?string}
-     * @method module:core/lexer#Lexer#scan
-     * @private
-     */
-
-  }, {
-    key: "scan",
-    value: function scan(regEx) {
-      var result; // this.s can either be a string, if it's made up only of ASCII chars
-      // or an array of graphemes, if it's more complicated.
-
-      if (typeof this.s === 'string') {
-        result = regEx.exec(this.s.slice(this.pos));
-      } else {
-        result = regEx.exec(this.s.slice(this.pos).join(''));
-      }
-
-      if (result) {
-        this.pos += result[0].length;
-        return result[0];
-      }
-
-      return null;
-    }
-    /**
-     * Return true if next char is white space. Does not advance.
-     *
-     * See [Stackoverflow](http://stackoverflow.com/questions/6073637/)
-     * @method module:core/lexer#Lexer#isWhiteSpace
-     * @private
-     */
-
-  }, {
-    key: "isWhiteSpace",
-    value: function isWhiteSpace() {
-      return /[ \f\n\r\t\v\xA0\u2028\u2029]/.test(this.s[this.pos]);
-      /*
-          Note that browsers are inconsistent in their definitions of the
-          `\s` metacharacter, so we use an explicit pattern instead.
-      
-          - IE:          `[ \f\n\r\t\v]`
-          - Chrome:      `[ \f\n\r\t\v\u00A0]`
-          - Firefox:     `[ \f\n\r\t\v\u00A0\u2028\u2029]`
-      
-          - \f \u000C: form feed (FORM FEED)
-          - \n \u000A: linefeed (LINE FEED)
-          - \r \u000D: carriage return
-          - \t \u0009: tab (CHARACTER TABULATION)
-          - \v \u000B: vertical tab (LINE TABULATION)
-          - \u00A0: NON-BREAKING SPACE
-          - \u2028: LINE SEPARATOR
-          - \u2029: PARAGRAPH SEPARATOR
-      
-          Could be considered:
-          - \u2000-\u200a spacing
-          - \u202f NARROW NO-BREAK SPACE
-          - \u205F MEDIUM MATHEMATICAL SPACE
-          - \u3000 IDEOGRAPHIC SPACE
-          - \uFEFF ZERO WITH NON-BREAKING SPACE
-      */
-    }
-    /**
-     * Return a single token, or null, created from the lexer.
-     *
-     * @returns {Token}
-     * @method module:core/lexer#Lexer#makeToken
-     * @private
-     */
-
-  }, {
-    key: "makeToken",
-    value: function makeToken() {
-      // If we've reached the end, exit
-      if (this.end()) return null; // Handle white space
-      // Note that in text mode, spaces are significant and can't be coalesced.
-
-      if (this.isWhiteSpace()) {
-        this.get();
-        return new Token('space');
-      }
-
-      var result = null; // Is it a command?
-
-      if (this.peek() === '\\') {
-        this.get(); // Skip the initial \
-
-        if (!this.end()) {
-          // A command is either a string of letters and asterisks...
-          var command = this.scan(/^[a-zA-Z*]+/); // There are a few special commands that are handled here...
-
-          if (command === 'bgroup') {
-            // Begin group, synonym for opening brace
-            result = new Token('{');
-          } else if (command === 'egroup') {
-            // End group, synonym for closing brace
-            result = new Token('}');
-          } else {
-            if (!command) {
-              // ... or a single non-letter character
-              command = this.get();
-            }
-
-            result = new Token('command', command);
-          }
-        } // Is it a group start/end?
-
-      } else if (this.peek() === '{' || this.peek() === '}') {
-        result = new Token(this.get());
-      } else if (this.peek() === '#') {
-        // This could be either a param token, or a literal # (used for
-        // colorspecs, for example). A param token is a '#' followed by
-        // - a digit 0-9 followed by a non-alpha, non-digit
-        // - or '?'.
-        // Otherwise, it's a literal '#'.
-        this.get();
-
-        if (!this.end()) {
-          var isParam = false;
-          var next = this.peek();
-
-          if (/[0-9?]/.test(next)) {
-            // Could be a param
-            isParam = true; // Need to look ahead to the following char
-
-            if (this.pos + 1 < this.s.length) {
-              var after = this.s[this.pos + 1];
-              isParam = /[^0-9A-Za-z]/.test(after);
-            }
-          }
-
-          if (isParam) {
-            result = new Token('#');
-            next = this.get();
-
-            if (next >= '0' && next <= '9') {
-              result.value = parseInt(next);
-            } else {
-              result.value = '?';
-            }
-          } else {
-            result = new Token('literal', '#');
-          }
-        } // result = new Token(this.get());
-        // if (!this.end()) {
-        //     const next = this.get();
-        //     if (next >= '0' && next <= '9') {
-        //         result.value = parseInt(next);
-        //     } else {
-        //         result.value = next;
-        //     }
-        // }
-
-      } else if (this.peek() === '~') {
-        // Spacing
-        this.get();
-        result = new Token('command', 'space');
-      } else if (this.peek() === '$') {
-        // Mode switch
-        this.get();
-
-        if (this.peek() === '$') {
-          // $$
-          this.get();
-          result = new Token('$$');
-        } else {
-          // $
-          result = new Token('$');
-        }
-      } else {
-        result = new Token('literal', this.get());
-      }
-
-      return result;
-    }
-  }]);
-
-  return Lexer;
-}();
-/**
- * Create Tokens from a stream of LaTeX
- *
- * @param {string} s - A string o LaTeX. It can include comments (with the `%`
- * marker) and multiple lines.
- * @return {Token[]}
- * @memberof module:core/lexer
- * @private
- */
-
-
-function tokenize(s) {
-  var result = [];
-  var lines = s.toString().split(/\r?\n/);
-  var stream = '';
-  var sep = '';
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
-
-  try {
-    for (var _iterator = lines[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var line = _step.value;
-      stream += sep;
-      sep = ' '; // Remove everything after a % (comment marker)
-      // (but \% should be preserved...)
-
-      var m = line.match(/((?:\\%)|[^%])*/);
-      if (m) stream += m[0];
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator.return != null) {
-        _iterator.return();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
-    }
-  }
-
-  var lex = new Lexer(stream);
-
-  while (!lex.end()) {
-    var token = lex.makeToken();
-    if (token) result.push(token);
-  }
-
-  return result;
-}
-
-var _default = {
-  tokenize: tokenize
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/mathAtom.js b/dist/core/mathAtom.js
deleted file mode 100644
index 8b33013fa..000000000
--- a/dist/core/mathAtom.js
+++ /dev/null
@@ -1,2395 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = exports.GREEK_REGEX = void 0;
-
-var _mathstyle = _interopRequireDefault(require("./mathstyle.js"));
-
-var _context = _interopRequireDefault(require("./context.js"));
-
-var _fontMetrics = require("./fontMetrics.js");
-
-var _span3 = _interopRequireDefault(require("./span.js"));
-
-var _delimiters = _interopRequireDefault(require("./delimiters.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
-
-function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
-
-function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
-
-function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
-
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-var makeSpan = _span3.default.makeSpan;
-var makeOrd = _span3.default.makeOrd;
-var makeInner = _span3.default.makeInner;
-var makeHlist = _span3.default.makeHlist;
-var makeVlist = _span3.default.makeVlist;
-var GREEK_REGEX = /\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5/; // TeX by default auto-italicize latin letters and lowercase greek letters
-
-exports.GREEK_REGEX = GREEK_REGEX;
-var AUTO_ITALIC_REGEX = /^([A-Za-z]|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)$/; // A table of size -> font size for the different sizing functions
-
-var SIZING_MULTIPLIER = {
-  size1: 0.5,
-  size2: 0.7,
-  size3: 0.8,
-  size4: 0.9,
-  size5: 1.0,
-  size6: 1.2,
-  size7: 1.44,
-  size8: 1.73,
-  size9: 2.07,
-  size10: 2.49
-};
-/**
- * An atom is an object encapsulating an elementary mathematical unit,
- * independent of its graphical representation.
- *
- * It keeps track of the content, while the dimensions, position and style
- * are tracked by Span objects which are created by the `decompose()` functions.
- *
- * @param {string} mode
- * @param {string} type
- * @param {string|MathAtom[]} body
- * @param {Object.<string, any>} [style={}] A set of additional properties to append to
- * the atom
- * @return {MathAtom}
- * @property {string} mode `'display'`, `'command'`, etc...
- * @property {string} type - Type can be one of:
- * - `mord`: ordinary symbol, e.g. `x`, `\alpha`
- * - `textord`: ordinary characters
- * - `mop`: operators, including special functions, `\sin`, `\sum`, `\cap`.
- * - `mbin`: binary operator: `+`, `*`, etc...
- * - `mrel`: relational operator: `=`, `\ne`, etc...
- * - `mpunct`: punctuation: `,`, `:`, etc...
- * - `mopen`: opening fence: `(`, `\langle`, etc...
- * - `mclose`: closing fence: `)`, `\rangle`, etc...
- * - `minner`: special layout cases, overlap, `\left...\right`
- *
- * In addition to these basic types, which correspond to the TeX atom types,
- * some atoms represent more complex compounds, including:
- * - `space` and `spacing`: blank space between atoms
- * - `mathstyle`: to change the math style used: `display` or `text`.
- * The layout rules are different for each, the latter being more compact and
- * intended to be incorporated with surrounding non-math text.
- * - `root`: a group, which has no parent (only one per formula)
- * - `group`: a simple group of atoms, for example from a `{...}`
- * - `sizing`: set the size of the font used
- * - `rule`: draw a line, for the `\rule` command
- * - `line`: used by `\overline` and `\underline` commands
- * - `box`: a border drawn around an expression and change its background color
- * - `overlap`: display a symbol _over_ another
- * - `overunder`: displays an annotation above or below a symbol
- * - `array`: a group, which has children arranged in rows. Used
- * by environments such as `matrix`, `cases`, etc...
- * - `genfrac`: a generalized fraction: a numerator and denominator, separated
- * by an optional line, and surrounded by optional fences
- * - `surd`: a surd, aka root
- * - `leftright`: used by the `\left` and `\right` commands
- * - `delim`: some delimiter
- * - `sizeddelim`: a delimiter that can grow
- *
- * The following types are used by the editor:
- * - `command` indicate a command being entered. The text is displayed in
- * blue in the editor.
- * - `error`: indicate a command that is unknown, for example `\xyzy`. The text
- * is displayed with a wavy red underline in the editor.
- * - `placeholder`: indicate a temporary item. Placeholders are displayed
- * as a dashed square in the editor.
- * - `first`: a special, empty, atom put as the first atom in math lists in
- * order to be able to position the caret before the first element. Aside from
- * the caret, they display nothing.
- *
- * @property {string|MathAtom[]} body
- * @property {MathAtom[]} superscript
- * @property {MathAtom[]} subscript
- * @property {MathAtom[]} numer
- * @property {MathAtom[]} denom
- * 
- * @property {boolean} captureSelection if true, this atom does not let its
- * children be selected. Used by the `\enclose` annotations, for example.
- * 
- * @property {boolean} skipBoundary if true, when the caret reaches the
- * first position in this element's body, it automatically moves to the
- * outside of the element. Conversely, when the caret reaches the position
- * right after this element, it automatically moves to the last position
- * inside this element.
- * 
- * @class module:core/mathatom#MathAtom
- * @global
- * @private
- */
-
-var MathAtom =
-/*#__PURE__*/
-function () {
-  /**
-   * 
-   * @param {string} mode 
-   * @param {string} type 
-   * @param {string|Array} body 
-   * @param {object} style 
-   */
-  function MathAtom(mode, type, body, style) {
-    _classCallCheck(this, MathAtom);
-
-    this.mode = mode;
-    this.type = type;
-    this.body = body; // Append all the properties in extras to this
-    // This can override the mode, type and body
-
-    this.applyStyle(style);
-  }
-
-  _createClass(MathAtom, [{
-    key: "getStyle",
-    value: function getStyle() {
-      return {
-        color: this.phantom ? 'transparent' : this.color,
-        backgroundColor: this.phantom ? 'transparent' : this.backgroundColor,
-        fontFamily: this.baseFontFamily || this.fontFamily || this.autoFontFamily,
-        fontShape: this.fontShape,
-        fontSeries: this.fontSeries,
-        fontSize: this.fontSize,
-        cssId: this.cssId,
-        cssClass: this.cssClass
-      };
-    }
-  }, {
-    key: "applyStyle",
-    value: function applyStyle(style) {
-      // Always apply the style, even if null. This will also set the 
-      // autoFontFamily, which account for auto-italic. This code path
-      // is used by \char.
-      Object.assign(this, style);
-
-      if (this.fontFamily === 'none') {
-        this.fontFamily = '';
-      }
-
-      if (this.fontShape === 'auto') {
-        this.fontShape = '';
-      }
-
-      if (this.fontSeries === 'auto') {
-        this.fontSeries = '';
-      }
-
-      if (this.color === 'none') {
-        this.color = '';
-      }
-
-      if (this.backgroundColor === 'none') {
-        this.backgroundColor = '';
-      }
-
-      if (this.fontSize === 'auto') {
-        this.fontSize = '';
-      }
-
-      if (this.fontSize) {
-        this.maxFontSize = SIZING_MULTIPLIER[this.fontSize];
-      }
-
-      if (this.mode === 'math') {
-        var symbol = typeof this.body === 'string' ? this.body : '';
-        this.autoFontFamily = 'cmr';
-
-        if (AUTO_ITALIC_REGEX.test(symbol)) {
-          // Auto italicize alphabetic and lowercase greek symbols
-          // in math mode (European style: American style would not
-          // italicize greek letters, but it's TeX's default behavior)
-          this.autoFontFamily = 'math';
-        } else if (/\\imath|\\jmath|\\pounds/.test(symbol)) {
-          // Some characters do not exist in the Math font,
-          // use Main italic instead
-          this.autoFontFamily = 'mainit';
-        } else if (!GREEK_REGEX.test(symbol) && this.baseFontFamily === 'math') {
-          this.autoFontFamily = 'cmr';
-        }
-      } else if (this.mode === 'text') {
-        // A root can be in text mode (root created when creating a representation
-        // of the selection, for copy/paste for example)
-        if (this.type !== 'root') this.type = '';
-        delete this.baseFontFamily;
-        delete this.autoFontFamily;
-      }
-    }
-  }, {
-    key: "getInitialBaseElement",
-    value: function getInitialBaseElement() {
-      var result = this;
-
-      if (Array.isArray(this.body) && this.body.length > 0) {
-        if (this.body[0].type !== 'first') {
-          result = this.body[0].getInitialBaseElement();
-        } else if (this.body[1]) {
-          result = this.body[1].getInitialBaseElement();
-        }
-      }
-
-      return result;
-    }
-  }, {
-    key: "getFinalBaseElement",
-    value: function getFinalBaseElement() {
-      if (Array.isArray(this.body) && this.body.length > 0) {
-        return this.body[this.body.length - 1].getFinalBaseElement();
-      }
-
-      return this;
-    }
-  }, {
-    key: "isCharacterBox",
-    value: function isCharacterBox() {
-      var base = this.getInitialBaseElement();
-      return /minner|mbin|mrel|mpunct|mopen|mclose|textord/.test(base.type);
-    }
-  }, {
-    key: "forEach",
-    value: function forEach(cb) {
-      cb(this);
-
-      if (Array.isArray(this.body)) {
-        var _iteratorNormalCompletion = true;
-        var _didIteratorError = false;
-        var _iteratorError = undefined;
-
-        try {
-          for (var _iterator = this.body[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-            var atom = _step.value;
-            if (atom) atom.forEach(cb);
-          }
-        } catch (err) {
-          _didIteratorError = true;
-          _iteratorError = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion && _iterator.return != null) {
-              _iterator.return();
-            }
-          } finally {
-            if (_didIteratorError) {
-              throw _iteratorError;
-            }
-          }
-        }
-      } else if (this.body && _typeof(this.body) === 'object') {
-        // Note: body can be null, for example 'first' or 'rule'
-        // (and null is an object)
-        cb(this.body);
-      }
-
-      if (this.superscript) {
-        var _iteratorNormalCompletion2 = true;
-        var _didIteratorError2 = false;
-        var _iteratorError2 = undefined;
-
-        try {
-          for (var _iterator2 = this.superscript[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-            var _atom = _step2.value;
-            if (_atom) _atom.forEach(cb);
-          }
-        } catch (err) {
-          _didIteratorError2 = true;
-          _iteratorError2 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-              _iterator2.return();
-            }
-          } finally {
-            if (_didIteratorError2) {
-              throw _iteratorError2;
-            }
-          }
-        }
-      }
-
-      if (this.subscript) {
-        var _iteratorNormalCompletion3 = true;
-        var _didIteratorError3 = false;
-        var _iteratorError3 = undefined;
-
-        try {
-          for (var _iterator3 = this.subscript[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-            var _atom2 = _step3.value;
-            if (_atom2) _atom2.forEach(cb);
-          }
-        } catch (err) {
-          _didIteratorError3 = true;
-          _iteratorError3 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
-              _iterator3.return();
-            }
-          } finally {
-            if (_didIteratorError3) {
-              throw _iteratorError3;
-            }
-          }
-        }
-      }
-
-      if (this.overscript) {
-        var _iteratorNormalCompletion4 = true;
-        var _didIteratorError4 = false;
-        var _iteratorError4 = undefined;
-
-        try {
-          for (var _iterator4 = this.overscript[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
-            var _atom3 = _step4.value;
-            if (_atom3) _atom3.forEach(cb);
-          }
-        } catch (err) {
-          _didIteratorError4 = true;
-          _iteratorError4 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
-              _iterator4.return();
-            }
-          } finally {
-            if (_didIteratorError4) {
-              throw _iteratorError4;
-            }
-          }
-        }
-      }
-
-      if (this.underscript) {
-        var _iteratorNormalCompletion5 = true;
-        var _didIteratorError5 = false;
-        var _iteratorError5 = undefined;
-
-        try {
-          for (var _iterator5 = this.underscript[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
-            var _atom4 = _step5.value;
-            if (_atom4) _atom4.forEach(cb);
-          }
-        } catch (err) {
-          _didIteratorError5 = true;
-          _iteratorError5 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
-              _iterator5.return();
-            }
-          } finally {
-            if (_didIteratorError5) {
-              throw _iteratorError5;
-            }
-          }
-        }
-      }
-
-      if (this.numer) {
-        var _iteratorNormalCompletion6 = true;
-        var _didIteratorError6 = false;
-        var _iteratorError6 = undefined;
-
-        try {
-          for (var _iterator6 = this.numer[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
-            var _atom5 = _step6.value;
-            if (_atom5) _atom5.forEach(cb);
-          }
-        } catch (err) {
-          _didIteratorError6 = true;
-          _iteratorError6 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
-              _iterator6.return();
-            }
-          } finally {
-            if (_didIteratorError6) {
-              throw _iteratorError6;
-            }
-          }
-        }
-      }
-
-      if (this.denom) {
-        var _iteratorNormalCompletion7 = true;
-        var _didIteratorError7 = false;
-        var _iteratorError7 = undefined;
-
-        try {
-          for (var _iterator7 = this.denom[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
-            var _atom6 = _step7.value;
-            if (_atom6) _atom6.forEach(cb);
-          }
-        } catch (err) {
-          _didIteratorError7 = true;
-          _iteratorError7 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
-              _iterator7.return();
-            }
-          } finally {
-            if (_didIteratorError7) {
-              throw _iteratorError7;
-            }
-          }
-        }
-      }
-
-      if (this.index) {
-        var _iteratorNormalCompletion8 = true;
-        var _didIteratorError8 = false;
-        var _iteratorError8 = undefined;
-
-        try {
-          for (var _iterator8 = this.index[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
-            var _atom7 = _step8.value;
-            if (_atom7) _atom7.forEach(cb);
-          }
-        } catch (err) {
-          _didIteratorError8 = true;
-          _iteratorError8 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion8 && _iterator8.return != null) {
-              _iterator8.return();
-            }
-          } finally {
-            if (_didIteratorError8) {
-              throw _iteratorError8;
-            }
-          }
-        }
-      }
-
-      if (this.array) {
-        var _iteratorNormalCompletion9 = true;
-        var _didIteratorError9 = false;
-        var _iteratorError9 = undefined;
-
-        try {
-          for (var _iterator9 = this.array[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
-            var row = _step9.value;
-            var _iteratorNormalCompletion10 = true;
-            var _didIteratorError10 = false;
-            var _iteratorError10 = undefined;
-
-            try {
-              for (var _iterator10 = row[Symbol.iterator](), _step10; !(_iteratorNormalCompletion10 = (_step10 = _iterator10.next()).done); _iteratorNormalCompletion10 = true) {
-                var cell = _step10.value;
-                var _iteratorNormalCompletion11 = true;
-                var _didIteratorError11 = false;
-                var _iteratorError11 = undefined;
-
-                try {
-                  for (var _iterator11 = cell[Symbol.iterator](), _step11; !(_iteratorNormalCompletion11 = (_step11 = _iterator11.next()).done); _iteratorNormalCompletion11 = true) {
-                    var _atom8 = _step11.value;
-
-                    _atom8.forEach(cb);
-                  }
-                } catch (err) {
-                  _didIteratorError11 = true;
-                  _iteratorError11 = err;
-                } finally {
-                  try {
-                    if (!_iteratorNormalCompletion11 && _iterator11.return != null) {
-                      _iterator11.return();
-                    }
-                  } finally {
-                    if (_didIteratorError11) {
-                      throw _iteratorError11;
-                    }
-                  }
-                }
-              }
-            } catch (err) {
-              _didIteratorError10 = true;
-              _iteratorError10 = err;
-            } finally {
-              try {
-                if (!_iteratorNormalCompletion10 && _iterator10.return != null) {
-                  _iterator10.return();
-                }
-              } finally {
-                if (_didIteratorError10) {
-                  throw _iteratorError10;
-                }
-              }
-            }
-          }
-        } catch (err) {
-          _didIteratorError9 = true;
-          _iteratorError9 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion9 && _iterator9.return != null) {
-              _iterator9.return();
-            }
-          } finally {
-            if (_didIteratorError9) {
-              throw _iteratorError9;
-            }
-          }
-        }
-      }
-    }
-    /**
-     * Iterate over all the child atoms of this atom, this included,
-     * and return an array of all the atoms for which the predicate callback
-     * is true.
-     *
-     * @return {MathAtom[]}
-     * @method MathAtom#filter
-     */
-
-  }, {
-    key: "filter",
-    value: function filter(cb) {
-      var result = [];
-      if (cb(this)) result.push(this);
-
-      for (var _i = 0, _arr = ['body', 'superscript', 'subscript', 'overscript', 'underscript', 'numer', 'denom', 'index']; _i < _arr.length; _i++) {
-        var relation = _arr[_i];
-
-        if (Array.isArray(this[relation])) {
-          var _iteratorNormalCompletion14 = true;
-          var _didIteratorError14 = false;
-          var _iteratorError14 = undefined;
-
-          try {
-            for (var _iterator14 = this[relation][Symbol.iterator](), _step14; !(_iteratorNormalCompletion14 = (_step14 = _iterator14.next()).done); _iteratorNormalCompletion14 = true) {
-              var atom = _step14.value;
-              if (atom) result = result.concat(atom.filter(cb));
-            }
-          } catch (err) {
-            _didIteratorError14 = true;
-            _iteratorError14 = err;
-          } finally {
-            try {
-              if (!_iteratorNormalCompletion14 && _iterator14.return != null) {
-                _iterator14.return();
-              }
-            } finally {
-              if (_didIteratorError14) {
-                throw _iteratorError14;
-              }
-            }
-          }
-        }
-      }
-
-      if (Array.isArray(this.array)) {
-        var _iteratorNormalCompletion12 = true;
-        var _didIteratorError12 = false;
-        var _iteratorError12 = undefined;
-
-        try {
-          for (var _iterator12 = this.array[Symbol.iterator](), _step12; !(_iteratorNormalCompletion12 = (_step12 = _iterator12.next()).done); _iteratorNormalCompletion12 = true) {
-            var row = _step12.value;
-            var _iteratorNormalCompletion13 = true;
-            var _didIteratorError13 = false;
-            var _iteratorError13 = undefined;
-
-            try {
-              for (var _iterator13 = row[Symbol.iterator](), _step13; !(_iteratorNormalCompletion13 = (_step13 = _iterator13.next()).done); _iteratorNormalCompletion13 = true) {
-                var cell = _step13.value;
-                if (cell) result = result.concat(cell.filter(cb));
-              }
-            } catch (err) {
-              _didIteratorError13 = true;
-              _iteratorError13 = err;
-            } finally {
-              try {
-                if (!_iteratorNormalCompletion13 && _iterator13.return != null) {
-                  _iterator13.return();
-                }
-              } finally {
-                if (_didIteratorError13) {
-                  throw _iteratorError13;
-                }
-              }
-            }
-          }
-        } catch (err) {
-          _didIteratorError12 = true;
-          _iteratorError12 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion12 && _iterator12.return != null) {
-              _iterator12.return();
-            }
-          } finally {
-            if (_didIteratorError12) {
-              throw _iteratorError12;
-            }
-          }
-        }
-      }
-
-      return result;
-    }
-  }, {
-    key: "decomposeGroup",
-    value: function decomposeGroup(context) {
-      // The scope of the context is this group, so clone it
-      // so that any changes to it will be discarded when finished
-      // with this group.
-      // Note that the mathstyle property is optional and could be undefined
-      // If that's the case, clone() returns a clone of the
-      // context with the same mathstyle.
-      var localContext = context.clone({
-        mathstyle: this.mathstyle
-      });
-      var span = makeOrd(_decompose(localContext, this.body));
-      if (this.cssId) span.cssId = this.cssId;
-      span.applyStyle({
-        backgroundColor: this.backgroundColor,
-        cssClass: this.cssClass
-      });
-      return span;
-    }
-  }, {
-    key: "decomposeArray",
-    value: function decomposeArray(context) {
-      // See http://tug.ctan.org/macros/latex/base/ltfsstrc.dtx
-      // and http://tug.ctan.org/macros/latex/base/lttab.dtx
-      var colFormat = this.colFormat;
-
-      if (colFormat && colFormat.length === 0) {
-        colFormat = [{
-          align: 'l'
-        }];
-      }
-
-      if (!colFormat) {
-        colFormat = [{
-          align: 'l'
-        }, {
-          align: 'l'
-        }, {
-          align: 'l'
-        }, {
-          align: 'l'
-        }, {
-          align: 'l'
-        }, {
-          align: 'l'
-        }, {
-          align: 'l'
-        }, {
-          align: 'l'
-        }, {
-          align: 'l'
-        }, {
-          align: 'l'
-        }];
-      } // Fold the array so that there are no more columns of content than
-      // there are columns prescribed by the column format.
-
-
-      var array = [];
-      var colMax = 0; // Maximum number of columns of content
-
-      var _iteratorNormalCompletion15 = true;
-      var _didIteratorError15 = false;
-      var _iteratorError15 = undefined;
-
-      try {
-        for (var _iterator15 = colFormat[Symbol.iterator](), _step15; !(_iteratorNormalCompletion15 = (_step15 = _iterator15.next()).done); _iteratorNormalCompletion15 = true) {
-          var colSpec = _step15.value;
-          if (colSpec.align) colMax++;
-        }
-      } catch (err) {
-        _didIteratorError15 = true;
-        _iteratorError15 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion15 && _iterator15.return != null) {
-            _iterator15.return();
-          }
-        } finally {
-          if (_didIteratorError15) {
-            throw _iteratorError15;
-          }
-        }
-      }
-
-      var _iteratorNormalCompletion16 = true;
-      var _didIteratorError16 = false;
-      var _iteratorError16 = undefined;
-
-      try {
-        for (var _iterator16 = this.array[Symbol.iterator](), _step16; !(_iteratorNormalCompletion16 = (_step16 = _iterator16.next()).done); _iteratorNormalCompletion16 = true) {
-          var _row = _step16.value;
-          var _colIndex = 0;
-
-          while (_colIndex < _row.length) {
-            var newRow = [];
-            var lastCol = Math.min(_row.length, _colIndex + colMax);
-
-            while (_colIndex < lastCol) {
-              newRow.push(_row[_colIndex++]);
-            }
-
-            array.push(newRow);
-          }
-        } // If the last row is empty, ignore it.
-
-      } catch (err) {
-        _didIteratorError16 = true;
-        _iteratorError16 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion16 && _iterator16.return != null) {
-            _iterator16.return();
-          }
-        } finally {
-          if (_didIteratorError16) {
-            throw _iteratorError16;
-          }
-        }
-      }
-
-      if (array[array.length - 1].length === 1 && array[array.length - 1][0].length === 0) {
-        array.pop();
-      }
-
-      var mathstyle = _mathstyle.default.toMathstyle(this.mathstyle) || context.mathstyle; // Row spacing
-      // Default \arraystretch from lttab.dtx
-
-      var arraystretch = this.arraystretch || 1;
-      var arrayskip = arraystretch * _fontMetrics.METRICS.baselineskip;
-      var arstrutHeight = 0.7 * arrayskip;
-      var arstrutDepth = 0.3 * arrayskip; // \@arstrutbox in lttab.dtx
-
-      var totalHeight = 0;
-      var nc = 0;
-      var body = [];
-      var nr = array.length;
-
-      for (var r = 0; r < nr; ++r) {
-        var inrow = array[r];
-        nc = Math.max(nc, inrow.length);
-        var height = arstrutHeight; // \@array adds an \@arstrut
-
-        var depth = arstrutDepth; // to each row (via the template)
-
-        var outrow = [];
-
-        for (var c = 0; c < inrow.length; ++c) {
-          var localContext = context.clone({
-            mathstyle: this.mathstyle
-          });
-          var cell = _decompose(localContext, inrow[c]) || [];
-          var elt = [makeOrd(null)].concat(cell);
-          depth = Math.max(depth, _span3.default.depth(elt));
-          height = Math.max(height, _span3.default.height(elt));
-          outrow.push(elt);
-        }
-
-        var jot = r === nr - 1 ? 0 : this.jot || 0;
-
-        if (this.rowGaps && this.rowGaps[r]) {
-          jot = this.rowGaps[r];
-
-          if (jot > 0) {
-            // \@argarraycr
-            jot += arstrutDepth;
-
-            if (depth < jot) {
-              depth = jot; // \@xargarraycr
-            }
-
-            jot = 0;
-          }
-        }
-
-        outrow.height = height;
-        outrow.depth = depth;
-        totalHeight += height;
-        outrow.pos = totalHeight;
-        totalHeight += depth + jot; // \@yargarraycr
-
-        body.push(outrow);
-      }
-
-      var offset = totalHeight / 2 + mathstyle.metrics.axisHeight;
-      var contentCols = [];
-
-      for (var colIndex = 0; colIndex < nc; colIndex++) {
-        var col = [];
-
-        for (var _i2 = 0, _body = body; _i2 < _body.length; _i2++) {
-          var row = _body[_i2];
-          var elem = row[colIndex];
-
-          if (!elem) {
-            continue;
-          }
-
-          elem.depth = row.depth;
-          elem.height = row.height;
-          col.push(elem);
-          col.push(row.pos - offset);
-        }
-
-        if (col.length > 0) {
-          contentCols.push(makeVlist(context, col, 'individualShift'));
-        }
-      } // Iterate over each column description.
-      // Each `colDesc` will indicate whether to insert a gap, a rule or
-      // a column from 'contentCols'
-
-
-      var cols = [];
-      var prevColContent = false;
-      var prevColRule = false;
-      var currentContentCol = 0;
-      var firstColumn = !this.lFence;
-      var _iteratorNormalCompletion17 = true;
-      var _didIteratorError17 = false;
-      var _iteratorError17 = undefined;
-
-      try {
-        for (var _iterator17 = colFormat[Symbol.iterator](), _step17; !(_iteratorNormalCompletion17 = (_step17 = _iterator17.next()).done); _iteratorNormalCompletion17 = true) {
-          var colDesc = _step17.value;
-
-          if (colDesc.align && currentContentCol >= contentCols.length) {
-            break;
-          } else if (colDesc.align && currentContentCol < contentCols.length) {
-            // If an alignment is specified, insert a column of content
-            if (prevColContent) {
-              // If no gap was provided, insert a default gap between
-              // consecutive columns of content
-              cols.push(makeColGap(2 * _fontMetrics.METRICS.arraycolsep));
-            } else if (prevColRule || firstColumn) {
-              // If the previous column was a rule or this is the first column
-              // add a smaller gap
-              cols.push(makeColGap(_fontMetrics.METRICS.arraycolsep));
-            }
-
-            cols.push(makeSpan(contentCols[currentContentCol], 'col-align-' + colDesc.align));
-            currentContentCol++;
-            prevColContent = true;
-            prevColRule = false;
-            firstColumn = false;
-          } else if (typeof colDesc.gap !== 'undefined') {
-            // Something to insert in between columns of content
-            if (typeof colDesc.gap === 'number') {
-              // It's a number, indicating how much space, in em,
-              // to leave in between columns
-              cols.push(makeColGap(colDesc.gap));
-            } else {
-              // It's a mathlist
-              // Create a column made up of the mathlist
-              // as many times as there are rows.
-              cols.push(makeColOfRepeatingElements(context, body, offset, colDesc.gap));
-            }
-
-            prevColContent = false;
-            prevColRule = false;
-            firstColumn = false;
-          } else if (colDesc.rule) {
-            // It's a rule.
-            var separator = makeSpan(null, 'vertical-separator');
-            separator.setStyle('height', totalHeight, 'em'); // result.setTop((1 - context.mathstyle.sizeMultiplier) *
-            //     context.mathstyle.metrics.axisHeight);
-
-            separator.setStyle('margin-top', 3 * context.mathstyle.metrics.axisHeight - offset, 'em');
-            separator.setStyle('vertical-align', 'top'); // separator.setStyle('display', 'inline-block');
-
-            var gap = 0;
-
-            if (prevColRule) {
-              gap = _fontMetrics.METRICS.doubleRuleSep - _fontMetrics.METRICS.arrayrulewidth;
-            } else if (prevColContent) {
-              gap = _fontMetrics.METRICS.arraycolsep - _fontMetrics.METRICS.arrayrulewidth;
-            }
-
-            separator.setLeft(gap, 'em');
-            cols.push(separator);
-            prevColContent = false;
-            prevColRule = true;
-            firstColumn = false;
-          }
-        }
-      } catch (err) {
-        _didIteratorError17 = true;
-        _iteratorError17 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion17 && _iterator17.return != null) {
-            _iterator17.return();
-          }
-        } finally {
-          if (_didIteratorError17) {
-            throw _iteratorError17;
-          }
-        }
-      }
-
-      if (prevColContent && !this.rFence) {
-        // If the last column was content, add a small gap
-        cols.push(makeColGap(_fontMetrics.METRICS.arraycolsep));
-      }
-
-      if ((!this.lFence || this.lFence === '.') && (!this.rFence || this.rFence === '.')) {
-        // There are no delimiters around the array, just return what
-        // we've built so far.
-        return makeOrd(cols, 'mtable');
-      } // There is at least one delimiter. Wrap the core of the array with
-      // appropriate left and right delimiters
-      // const inner = makeSpan(makeSpan(cols, 'mtable'), 'mord');
-
-
-      var inner = makeSpan(cols, 'mtable');
-
-      var innerHeight = _span3.default.height(inner);
-
-      var innerDepth = _span3.default.depth(inner);
-
-      return makeOrd([this.bind(context, _delimiters.default.makeLeftRightDelim('mopen', this.lFence, innerHeight, innerDepth, context)), inner, this.bind(context, _delimiters.default.makeLeftRightDelim('mclose', this.rFence, innerHeight, innerDepth, context))]);
-    }
-    /**
-     * Gengrac -- Generalized fraction
-     *
-     * Decompose fractions, binomials, and in general anything made
-     * of two expressions on top of each other, optionally separated by a bar,
-     * and optionally surrounded by fences (parentheses, brackets, etc...)
-     *
-     * Depending on the type of fraction the mathstyle is either
-     * display math or inline math (which is indicated by 'textstyle'). This value can
-     * also be set to 'auto', which indicates it should use the current mathstyle
-     *
-     * @method MathAtom#decomposeGenfrac
-     */
-
-  }, {
-    key: "decomposeGenfrac",
-    value: function decomposeGenfrac(context) {
-      var mathstyle = this.mathstyle === 'auto' ? context.mathstyle : _mathstyle.default.toMathstyle(this.mathstyle);
-      var newContext = context.clone({
-        mathstyle: mathstyle
-      });
-      var numer = [];
-
-      if (this.numerPrefix) {
-        numer.push(makeOrd(this.numerPrefix));
-      }
-
-      var numeratorStyle = this.continuousFraction ? mathstyle : mathstyle.fracNum();
-      numer = numer.concat(_decompose(newContext.clone({
-        mathstyle: numeratorStyle
-      }), this.numer));
-      var numerReset = makeHlist(numer, context.mathstyle.adjustTo(numeratorStyle));
-      var denom = [];
-
-      if (this.denomPrefix) {
-        denom.push(makeOrd(this.denomPrefix));
-      }
-
-      var denominatorStyle = this.continuousFraction ? mathstyle : mathstyle.fracDen();
-      denom = denom.concat(_decompose(newContext.clone({
-        mathstyle: denominatorStyle
-      }), this.denom));
-      var denomReset = makeHlist(denom, context.mathstyle.adjustTo(denominatorStyle));
-      var ruleWidth = !this.hasBarLine ? 0 : _fontMetrics.METRICS.defaultRuleThickness / mathstyle.sizeMultiplier; // Rule 15b from Appendix G
-
-      var numShift;
-      var clearance;
-      var denomShift;
-
-      if (mathstyle.size === _mathstyle.default.DISPLAY.size) {
-        numShift = mathstyle.metrics.num1;
-
-        if (ruleWidth > 0) {
-          clearance = 3 * ruleWidth;
-        } else {
-          clearance = 7 * _fontMetrics.METRICS.defaultRuleThickness;
-        }
-
-        denomShift = mathstyle.metrics.denom1;
-      } else {
-        if (ruleWidth > 0) {
-          numShift = mathstyle.metrics.num2;
-          clearance = ruleWidth;
-        } else {
-          numShift = mathstyle.metrics.num3;
-          clearance = 3 * _fontMetrics.METRICS.defaultRuleThickness;
-        }
-
-        denomShift = mathstyle.metrics.denom2;
-      }
-
-      var numerDepth = numerReset ? numerReset.depth : 0;
-      var denomHeight = denomReset ? denomReset.height : 0;
-      var frac;
-
-      if (ruleWidth === 0) {
-        // Rule 15c from Appendix G
-        // No bar line between numerator and denominator
-        var candidateClearance = numShift - numerDepth - (denomHeight - denomShift);
-
-        if (candidateClearance < clearance) {
-          numShift += 0.5 * (clearance - candidateClearance);
-          denomShift += 0.5 * (clearance - candidateClearance);
-        }
-
-        frac = makeVlist(newContext, [numerReset, -numShift, denomReset, denomShift], 'individualShift');
-      } else {
-        // Rule 15d from Appendix G
-        // There is a bar line between the numerator and the denominator
-        var axisHeight = mathstyle.metrics.axisHeight;
-
-        if (numShift - numerDepth - (axisHeight + 0.5 * ruleWidth) < clearance) {
-          numShift += clearance - (numShift - numerDepth - (axisHeight + 0.5 * ruleWidth));
-        }
-
-        if (axisHeight - 0.5 * ruleWidth - (denomHeight - denomShift) < clearance) {
-          denomShift += clearance - (axisHeight - 0.5 * ruleWidth - (denomHeight - denomShift));
-        }
-
-        var mid = makeSpan(null,
-        /* newContext.mathstyle.adjustTo(Mathstyle.TEXT) + */
-        ' frac-line');
-        mid.applyStyle(this.getStyle()); // @todo: do we really need to reset the size?
-        // Manually set the height of the line because its height is
-        // created in CSS
-
-        mid.height = ruleWidth;
-        var elements = [];
-
-        if (numerReset) {
-          elements.push(numerReset);
-          elements.push(-numShift);
-        }
-
-        elements.push(mid);
-        elements.push(ruleWidth / 2 - axisHeight);
-
-        if (denomReset) {
-          elements.push(denomReset);
-          elements.push(denomShift);
-        }
-
-        frac = makeVlist(newContext, elements, 'individualShift');
-      } // Add a 'mfrac' class to provide proper context for
-      // other css selectors (such as 'frac-line')
-
-
-      frac.classes += ' mfrac'; // Since we manually change the style sometimes (with \dfrac or \tfrac),
-      // account for the possible size change here.
-
-      frac.height *= mathstyle.sizeMultiplier / context.mathstyle.sizeMultiplier;
-      frac.depth *= mathstyle.sizeMultiplier / context.mathstyle.sizeMultiplier; // if (!this.leftDelim && !this.rightDelim) {
-      //     return makeOrd(frac,
-      //         context.parentMathstyle.adjustTo(mathstyle) +
-      //         ((context.parentSize !== context.size) ?
-      //             (' sizing reset-' + context.parentSize + ' ' + context.size) : ''));
-      // }
-      // Rule 15e of Appendix G
-
-      var delimSize = mathstyle.size === _mathstyle.default.DISPLAY.size ? mathstyle.metrics.delim1 : mathstyle.metrics.delim2; // Optional delimiters
-
-      var leftDelim = _delimiters.default.makeCustomSizedDelim('mopen', this.leftDelim, delimSize, true, context.clone({
-        mathstyle: mathstyle
-      }));
-
-      var rightDelim = _delimiters.default.makeCustomSizedDelim('mclose', this.rightDelim, delimSize, true, context.clone({
-        mathstyle: mathstyle
-      }));
-
-      leftDelim.applyStyle(this.getStyle());
-      rightDelim.applyStyle(this.getStyle());
-      var result = makeOrd([leftDelim, frac, rightDelim], context.parentSize !== context.size ? 'sizing reset-' + context.parentSize + ' ' + context.size : '');
-      return result;
-    }
-    /**
-      *  \left....\right
-      *
-      * Note that we can encounter malformed \left...\right, for example
-      * a \left without a matching \right or vice versa. In that case, the
-      * leftDelim (resp. rightDelim) will be undefined. We still need to handle
-      * those cases.
-      *
-     * @method MathAtom#decomposeLeftright
-      */
-
-  }, {
-    key: "decomposeLeftright",
-    value: function decomposeLeftright(context) {
-      if (!this.body) {
-        // No body, only a delimiter
-        if (this.leftDelim) {
-          return new MathAtom('math', 'mopen', this.leftDelim).decompose(context);
-        }
-
-        if (this.rightDelim) {
-          return new MathAtom('math', 'mclose', this.rightDelim).decompose(context);
-        }
-
-        return null;
-      } // The scope of the context is this group, so make a copy of it
-      // so that any changes to it will be discarded when finished
-      // with this group.
-
-
-      var localContext = context.clone();
-
-      var inner = _decompose(localContext, this.body);
-
-      var mathstyle = localContext.mathstyle;
-      var innerHeight = 0;
-      var innerDepth = 0;
-      var result = []; // Calculate its height and depth
-      // The size of delimiters is the same, regardless of what mathstyle we are
-      // in. Thus, to correctly calculate the size of delimiter we need around
-      // a group, we scale down the inner size based on the size.
-
-      innerHeight = _span3.default.height(inner) * mathstyle.sizeMultiplier;
-      innerDepth = _span3.default.depth(inner) * mathstyle.sizeMultiplier; // Add the left delimiter to the beginning of the expression
-
-      if (this.leftDelim) {
-        result.push(_delimiters.default.makeLeftRightDelim('mopen', this.leftDelim, innerHeight, innerDepth, localContext));
-        result[result.length - 1].applyStyle(this.getStyle());
-      }
-
-      if (inner) {
-        // Replace the delim (\middle) spans with proper ones now that we know
-        // the height/depth
-        for (var i = 0; i < inner.length; i++) {
-          if (inner[i].delim) {
-            var savedCaret = inner[i].caret;
-            var savedSelected = /ML__selected/.test(inner[i].classes);
-            inner[i] = _delimiters.default.makeLeftRightDelim('minner', inner[i].delim, innerHeight, innerDepth, localContext);
-            inner[i].caret = savedCaret;
-            inner[i].selected(savedSelected);
-          }
-        }
-
-        result = result.concat(inner);
-      } // Add the right delimiter to the end of the expression.
-
-
-      if (this.rightDelim) {
-        var delim = this.rightDelim;
-        var classes;
-
-        if (delim === '?') {
-          // Use a placeholder delimiter matching the open delimiter
-          delim = {
-            '(': ')',
-            '\\{': '\\}',
-            '\\[': '\\]',
-            '\\lbrace': '\\rbrace',
-            '\\langle': '\\rangle',
-            '\\lfloor': '\\rfloor',
-            '\\lceil': '\\rceil',
-            '\\vert': '\\vert',
-            '\\lvert': '\\rvert',
-            '\\Vert': '\\Vert',
-            '\\lVert': '\\rVert',
-            '\\lbrack': '\\rbrack',
-            "\\ulcorner": "\\urcorner",
-            '\\llcorner': '\\lrcorner',
-            '\\lgroup': '\\rgroup',
-            '\\lmoustache': '\\rmoustache'
-          }[this.leftDelim];
-          delim = delim || this.leftDelim;
-          classes = 'ML__smart-fence__close';
-        }
-
-        result.push(_delimiters.default.makeLeftRightDelim('mclose', delim, innerHeight, innerDepth, localContext, classes));
-        result[result.length - 1].applyStyle(this.getStyle());
-      } // If the `inner` flag is set, return the `inner` element (that's the
-      // behavior for the regular `\left...\right`
-
-
-      if (this.inner) return makeInner(result, mathstyle.cls()); // Otherwise, include a `\mathopen{}...\mathclose{}`. That's the
-      // behavior for `\mleft...\mright`, which allows for tighter spacing
-      // for example in `\sin\mleft(x\mright)`
-
-      return result;
-    }
-  }, {
-    key: "decomposeSurd",
-    value: function decomposeSurd(context) {
-      // See the TeXbook pg. 443, Rule 11.
-      // http://www.ctex.org/documents/shredder/src/texbook.pdf
-      var mathstyle = context.mathstyle; // First, we do the same steps as in overline to build the inner group
-      // and line
-
-      var inner = _decompose(context.cramp(), this.body);
-
-      var ruleWidth = _fontMetrics.METRICS.defaultRuleThickness / mathstyle.sizeMultiplier;
-      var phi = ruleWidth;
-
-      if (mathstyle.id < _mathstyle.default.TEXT.id) {
-        phi = mathstyle.metrics.xHeight;
-      } // Calculate the clearance between the body and line
-
-
-      var lineClearance = ruleWidth + phi / 4;
-      var innerTotalHeight = Math.max(2 * phi, (_span3.default.height(inner) + _span3.default.depth(inner)) * mathstyle.sizeMultiplier);
-      var minDelimiterHeight = innerTotalHeight + (lineClearance + ruleWidth); // Create a \surd delimiter of the required minimum size
-
-      var delim = makeSpan(_delimiters.default.makeCustomSizedDelim('', '\\surd', minDelimiterHeight, false, context), 'sqrt-sign');
-      delim.applyStyle(this.getStyle());
-      var delimDepth = delim.height + delim.depth - ruleWidth; // Adjust the clearance based on the delimiter size
-
-      if (delimDepth > _span3.default.height(inner) + _span3.default.depth(inner) + lineClearance) {
-        lineClearance = (lineClearance + delimDepth - (_span3.default.height(inner) + _span3.default.depth(inner))) / 2;
-      } // Shift the delimiter so that its top lines up with the top of the line
-
-
-      delim.setTop(delim.height - _span3.default.height(inner) - (lineClearance + ruleWidth));
-      var line = makeSpan(null, context.mathstyle.adjustTo(_mathstyle.default.TEXT) + ' sqrt-line');
-      line.applyStyle(this.getStyle());
-      line.height = ruleWidth;
-      var body = makeVlist(context, [inner, lineClearance, line, ruleWidth]);
-
-      if (!this.index) {
-        return makeOrd([delim, body], 'sqrt');
-      } // Handle the optional root index
-      // The index is always in scriptscript style
-
-
-      var newcontext = context.clone({
-        mathstyle: _mathstyle.default.SCRIPTSCRIPT
-      });
-      var root = makeSpan(_decompose(newcontext, this.index), mathstyle.adjustTo(_mathstyle.default.SCRIPTSCRIPT)); // Figure out the height and depth of the inner part
-
-      var innerRootHeight = Math.max(delim.height, body.height);
-      var innerRootDepth = Math.max(delim.depth, body.depth); // The amount the index is shifted by. This is taken from the TeX
-      // source, in the definition of `\r@@t`.
-
-      var toShift = 0.6 * (innerRootHeight - innerRootDepth); // Build a VList with the superscript shifted up correctly
-
-      var rootVlist = makeVlist(context, [root], 'shift', -toShift); // Add a class surrounding it so we can add on the appropriate
-      // kerning
-
-      return makeOrd([makeSpan(rootVlist, 'root'), delim, body], 'sqrt');
-    }
-  }, {
-    key: "decomposeAccent",
-    value: function decomposeAccent(context) {
-      // Accents are handled in the TeXbook pg. 443, rule 12.
-      var mathstyle = context.mathstyle; // Build the base atom
-
-      var base = _decompose(context.cramp(), this.body);
-
-      if (this.superscript || this.subscript) {
-        // If there is a supsub attached to the accent
-        // apply it to the base.
-        // Note this does not give the same result as TeX when there
-        // are stacked accents, e.g. \vec{\breve{\hat{\acute{...}}}}^2
-        base = this.attachSupsub(context, makeOrd(base), 'mord');
-      } // Calculate the skew of the accent. This is based on the line "If the
-      // nucleus is not a single character, let s = 0; otherwise set s to the
-      // kern amount for the nucleus followed by the \skewchar of its font."
-      // Note that our skew metrics are just the kern between each character
-      // and the skewchar.
-
-
-      var skew = 0;
-
-      if (Array.isArray(this.body) && this.body.length === 1 && this.body[0].isCharacterBox()) {
-        skew = _span3.default.skew(base);
-      } // calculate the amount of space between the body and the accent
-
-
-      var clearance = Math.min(_span3.default.height(base), mathstyle.metrics.xHeight); // Build the accent
-
-      var accent = _span3.default.makeSymbol('Main-Regular', this.accent, 'math'); // Remove the italic correction of the accent, because it only serves to
-      // shift the accent over to a place we don't want.
-
-
-      accent.italic = 0; // The \vec character that the fonts use is a combining character, and
-      // thus shows up much too far to the left. To account for this, we add a
-      // specific class which shifts the accent over to where we want it.
-
-      var vecClass = this.accent === "\u20D7" ? ' accent-vec' : '';
-      var accentBody = makeSpan(makeSpan(accent), 'accent-body' + vecClass);
-      accentBody = makeVlist(context, [base, -clearance, accentBody]); // Shift the accent over by the skew. Note we shift by twice the skew
-      // because we are centering the accent, so by adding 2*skew to the left,
-      // we shift it to the right by 1*skew.
-
-      accentBody.children[1].setLeft(2 * skew);
-      return makeOrd(accentBody, 'accent');
-    }
-    /**
-     * \overline and \underline
-     *
-     * @method MathAtom#decomposeLine
-     */
-
-  }, {
-    key: "decomposeLine",
-    value: function decomposeLine(context) {
-      var mathstyle = context.mathstyle; // TeXBook:443. Rule 9 and 10
-
-      var inner = _decompose(context.cramp(), this.body);
-
-      var ruleWidth = _fontMetrics.METRICS.defaultRuleThickness / mathstyle.sizeMultiplier;
-      var line = makeSpan(null, context.mathstyle.adjustTo(_mathstyle.default.TEXT) + ' ' + this.position + '-line');
-      line.height = ruleWidth;
-      line.maxFontSize = 1.0;
-      var vlist;
-
-      if (this.position === 'overline') {
-        vlist = makeVlist(context, [inner, 3 * ruleWidth, line, ruleWidth]);
-      } else {
-        var innerSpan = makeSpan(inner);
-        vlist = makeVlist(context, [ruleWidth, line, 3 * ruleWidth, innerSpan], 'top', _span3.default.height(innerSpan));
-      }
-
-      return makeOrd(vlist, this.position);
-    }
-  }, {
-    key: "decomposeOverunder",
-    value: function decomposeOverunder(context) {
-      var base = _decompose(context, this.body);
-
-      var annotationStyle = context.clone({
-        mathstyle: 'scriptstyle'
-      });
-      var above = this.overscript ? makeSpan(_decompose(annotationStyle, this.overscript), context.mathstyle.adjustTo(annotationStyle.mathstyle)) : null;
-      var below = this.underscript ? makeSpan(_decompose(annotationStyle, this.underscript), context.mathstyle.adjustTo(annotationStyle.mathstyle)) : null;
-      return makeStack(context, base, 0, 0, above, below, this.mathtype || 'mrel');
-    }
-  }, {
-    key: "decomposeOverlap",
-    value: function decomposeOverlap(context) {
-      var inner = makeSpan(_decompose(context, this.body), 'inner');
-      return makeOrd([inner, makeSpan(null, 'fix')], this.align === 'left' ? 'llap' : 'rlap');
-    }
-    /**
-     * \rule
-     * @memberof MathAtom
-     * @instance
-     */
-
-  }, {
-    key: "decomposeRule",
-    value: function decomposeRule(context) {
-      var mathstyle = context.mathstyle;
-      var result = makeOrd('', 'rule');
-      var shift = this.shift && !isNaN(this.shift) ? this.shift : 0;
-      shift = shift / mathstyle.sizeMultiplier;
-      var width = this.width / mathstyle.sizeMultiplier;
-      var height = this.height / mathstyle.sizeMultiplier;
-      result.setStyle('border-right-width', width, 'em');
-      result.setStyle('border-top-width', height, 'em');
-      result.setStyle('margin-top', -(height - shift), 'em');
-      result.setStyle('border-color', context.color);
-      result.width = width;
-      result.height = height + shift;
-      result.depth = -shift;
-      return result;
-    }
-  }, {
-    key: "decomposeOp",
-    value: function decomposeOp(context) {
-      // Operators are handled in the TeXbook pg. 443-444, rule 13(a).
-      var mathstyle = context.mathstyle;
-      var large = false;
-
-      if (mathstyle.size === _mathstyle.default.DISPLAY.size && typeof this.body === 'string' && this.body !== '\\smallint') {
-        // Most symbol operators get larger in displaystyle (rule 13)
-        large = true;
-      }
-
-      var base;
-      var baseShift = 0;
-      var slant = 0;
-
-      if (this.symbol) {
-        // If this is a symbol, create the symbol.
-        var fontName = large ? 'Size2-Regular' : 'Size1-Regular';
-        base = _span3.default.makeSymbol(fontName, this.body, 'op-symbol ' + (large ? 'large-op' : 'small-op'));
-        base.type = 'mop'; // Shift the symbol so its center lies on the axis (rule 13). It
-        // appears that our fonts have the centers of the symbols already
-        // almost on the axis, so these numbers are very small. Note we
-        // don't actually apply this here, but instead it is used either in
-        // the vlist creation or separately when there are no limits.
-
-        baseShift = (base.height - base.depth) / 2 - mathstyle.metrics.axisHeight * mathstyle.sizeMultiplier; // The slant of the symbol is just its italic correction.
-
-        slant = base.italic; // Bind the generated span and this atom so the atom can be retrieved
-        // from the span later.
-
-        this.bind(context, base);
-      } else if (Array.isArray(this.body)) {
-        // If this is a list, decompose that list.
-        base = _span3.default.makeOp(_decompose(context, this.body)); // Bind the generated span and this atom so the atom can be retrieved
-        // from the span later.
-
-        this.bind(context, base);
-      } else {
-        // Otherwise, this is a text operator. Build the text from the
-        // operator's name.
-        console.assert(this.type === 'mop');
-        base = this.makeSpan(context, this.body);
-      }
-
-      if (this.superscript || this.subscript) {
-        var limits = this.limits || 'auto';
-
-        if (this.alwaysHandleSupSub || limits === 'limits' || limits === 'auto' && mathstyle.size === _mathstyle.default.DISPLAY.size) {
-          return this.attachLimits(context, base, baseShift, slant);
-        }
-
-        return this.attachSupsub(context, base, 'mop');
-      }
-
-      if (this.symbol) base.setTop(baseShift);
-      return base;
-    }
-  }, {
-    key: "decomposeBox",
-    value: function decomposeBox(context) {
-      // Base is the main content "inside" the box
-      var base = makeOrd(_decompose(context, this.body)); // This span will represent the box (background and border)
-      // It's positioned to overlap the base
-
-      var box = makeSpan();
-      box.setStyle('position', 'absolute'); // The padding extends outside of the base
-
-      var padding = typeof this.padding === 'number' ? this.padding : _fontMetrics.METRICS.fboxsep;
-      box.setStyle('height', base.height + base.depth + 2 * padding, 'em');
-
-      if (padding !== 0) {
-        box.setStyle('width', 'calc(100% + ' + 2 * padding + 'em)');
-      } else {
-        box.setStyle('width', '100%');
-      }
-
-      box.setStyle('top', -padding, 'em');
-      box.setStyle('left', -padding, 'em');
-      box.setStyle('z-index', '-1'); // Ensure the box is *behind* the base
-
-      if (this.backgroundcolor) box.setStyle('background-color', this.backgroundcolor);
-      if (this.framecolor) box.setStyle('border', _fontMetrics.METRICS.fboxrule + 'em solid ' + this.framecolor);
-      if (this.border) box.setStyle('border', this.border);
-      base.setStyle('display', 'inline-block');
-      base.setStyle('height', base.height + base.depth, 'em');
-      base.setStyle('vertical-align', -base.depth + padding, 'em'); // The result is a span that encloses the box and the base
-
-      var result = makeSpan([box, base]); // Set its position as relative so that the box can be absolute positioned
-      // over the base
-
-      result.setStyle('position', 'relative');
-      result.setStyle('vertical-align', -padding + base.depth, 'em'); // The padding adds to the width and height of the pod
-
-      result.height = base.height + padding;
-      result.depth = base.depth + padding;
-      result.setLeft(padding);
-      result.setRight(padding);
-      return result;
-    }
-  }, {
-    key: "decomposeEnclose",
-    value: function decomposeEnclose(context) {
-      var base = makeOrd(_decompose(context, this.body));
-      var result = base; // Account for the padding
-
-      var padding = this.padding === 'auto' ? .2 : this.padding; // em
-
-      result.setStyle('padding', padding, 'em');
-      result.setStyle('display', 'inline-block');
-      result.setStyle('height', result.height + result.depth, 'em');
-      result.setStyle('left', -padding, 'em');
-
-      if (this.backgroundcolor && this.backgroundcolor !== 'transparent') {
-        result.setStyle('background-color', this.backgroundcolor);
-      }
-
-      var svg = '';
-      if (this.notation.box) result.setStyle('border', this.borderStyle);
-
-      if (this.notation.actuarial) {
-        result.setStyle('border-top', this.borderStyle);
-        result.setStyle('border-right', this.borderStyle);
-      }
-
-      if (this.notation.madruwb) {
-        result.setStyle('border-bottom', this.borderStyle);
-        result.setStyle('border-right', this.borderStyle);
-      }
-
-      if (this.notation.roundedbox) {
-        result.setStyle('border-radius', (_span3.default.height(result) + _span3.default.depth(result)) / 2, 'em');
-        result.setStyle('border', this.borderStyle);
-      }
-
-      if (this.notation.circle) {
-        result.setStyle('border-radius', '50%');
-        result.setStyle('border', this.borderStyle);
-      }
-
-      if (this.notation.top) result.setStyle('border-top', this.borderStyle);
-      if (this.notation.left) result.setStyle('border-left', this.borderStyle);
-      if (this.notation.right) result.setStyle('border-right', this.borderStyle);
-      if (this.notation.bottom) result.setStyle('border-bottom', this.borderStyle);
-
-      if (this.notation.horizontalstrike) {
-        svg += '<line x1="3%"  y1="50%" x2="97%" y2="50%"';
-        svg += " stroke-width=\"".concat(this.strokeWidth, "\" stroke=\"").concat(this.strokeColor, "\"");
-        svg += ' stroke-linecap="round"';
-
-        if (this.svgStrokeStyle) {
-          svg += " stroke-dasharray=\"".concat(this.svgStrokeStyle, "\"");
-        }
-
-        svg += '/>';
-      }
-
-      if (this.notation.verticalstrike) {
-        svg += '<line x1="50%"  y1="3%" x2="50%" y2="97%"';
-        svg += " stroke-width=\"".concat(this.strokeWidth, "\" stroke=\"").concat(this.strokeColor, "\"");
-        svg += ' stroke-linecap="round"';
-
-        if (this.svgStrokeStyle) {
-          svg += " stroke-dasharray=\"".concat(this.svgStrokeStyle, "\"");
-        }
-
-        svg += '/>';
-      }
-
-      if (this.notation.updiagonalstrike) {
-        svg += '<line x1="3%"  y1="97%" x2="97%" y2="3%"';
-        svg += " stroke-width=\"".concat(this.strokeWidth, "\" stroke=\"").concat(this.strokeColor, "\"");
-        svg += ' stroke-linecap="round"';
-
-        if (this.svgStrokeStyle) {
-          svg += " stroke-dasharray=\"".concat(this.svgStrokeStyle, "\"");
-        }
-
-        svg += '/>';
-      }
-
-      if (this.notation.downdiagonalstrike) {
-        svg += '<line x1="3%"  y1="3%" x2="97%" y2="97%"';
-        svg += " stroke-width=\"".concat(this.strokeWidth, "\" stroke=\"").concat(this.strokeColor, "\"");
-        svg += ' stroke-linecap="round"';
-
-        if (this.svgStrokeStyle) {
-          svg += " stroke-dasharray=\"".concat(this.svgStrokeStyle, "\"");
-        }
-
-        svg += '/>';
-      } // if (this.notation.updiagonalarrow) {
-      //     const t = 1;
-      //     const length = Math.sqrt(w * w + h * h);
-      //     const f = 1 / length / 0.075 * t;
-      //     const wf = w * f;
-      //     const hf = h * f;
-      //     const x = w - t / 2;
-      //     let y = t / 2;
-      //     if (y + hf - .4 * wf < 0 ) y = 0.4 * wf - hf;
-      //     svg += '<line ';
-      //     svg += `x1="1" y1="${h - 1}px" x2="${x - .7 * wf}px" y2="${y + .7 * hf}px"`;
-      //     svg += ` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`;
-      //     svg += ' stroke-linecap="round"';
-      //     if (this.svgStrokeStyle) {
-      //         svg += ` stroke-dasharray="${this.svgStrokeStyle}"`;
-      //     }
-      //     svg += '/>';
-      //     svg += '<polygon points="';
-      //     svg += `${x},${y} ${x - wf - .4 * hf},${y + hf - .4 * wf} `;
-      //     svg += `${x - .7 * wf},${y + .7 * hf} ${x - wf + .4 * hf},${y + hf + .4 * wf} `;
-      //     svg += `${x},${y}`;
-      //     svg += `" stroke='none' fill="${this.strokeColor}"`;
-      //     svg += '/>';
-      // }
-      // if (this.notation.phasorangle) {
-      //     svg += '<path d="';
-      //     svg += `M ${h / 2},1 L1,${h} L${w},${h} "`;
-      //     svg += ` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}" fill="none"`;
-      //     if (this.svgStrokeStyle) {
-      //         svg += ' stroke-linecap="round"';
-      //         svg += ` stroke-dasharray="${this.svgStrokeStyle}"`;
-      //     }
-      //     svg += '/>';
-      // }
-      // if (this.notation.radical) {
-      //     svg += '<path d="';
-      //     svg += `M 0,${.6 * h} L1,${h} L${emToPx(padding) * 2},1 "`;
-      //     svg += ` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}" fill="none"`;
-      //     if (this.svgStrokeStyle) {
-      //         svg += ' stroke-linecap="round"';
-      //         svg += ` stroke-dasharray="${this.svgStrokeStyle}"`;
-      //     }
-      //     svg += '/>';
-      // }
-      // if (this.notation.longdiv) {
-      //     svg += '<path d="';
-      //     svg += `M ${w} 1 L1 1 a${emToPx(padding)} ${h / 2}, 0, 0, 1, 1 ${h} "`;
-      //     svg += ` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}" fill="none"`;
-      //     if (this.svgStrokeStyle) {
-      //         svg += ' stroke-linecap="round"';
-      //         svg += ` stroke-dasharray="${this.svgStrokeStyle}"`;
-      //     }
-      //     svg += '/>';
-      // }
-
-
-      if (svg) {
-        var svgStyle;
-
-        if (this.shadow !== 'none') {
-          if (this.shadow === 'auto') {
-            svgStyle = 'filter: drop-shadow(0 0 .5px rgba(255, 255, 255, .7)) drop-shadow(1px 1px 2px #333)';
-          } else {
-            svgStyle = 'filter: drop-shadow(' + this.shadow + ')';
-          }
-        }
-
-        return _span3.default.makeSVG(result, svg, svgStyle);
-      }
-
-      return result;
-    }
-    /**
-     * Return a representation of this, but decomposed in an array of Spans
-     *
-     * @param {Context} context Font variant, size, color, etc...
-     * @param {Span[]} [phantomBase=null] If not null, the spans to use to
-     * calculate the placement of the supsub
-     * @return {Span[]}
-     * @method MathAtom#decompose
-     */
-
-  }, {
-    key: "decompose",
-    value: function decompose(context, phantomBase) {
-      console.assert(context instanceof _context.default.Context);
-      var result = null;
-
-      if (!this.type || /mord|minner|mbin|mrel|mpunct|mopen|mclose|textord/.test(this.type)) {
-        // The body of these atom types is *often* a string, but it can
-        // be a atom list (for example a command inside a \text{})
-        if (typeof this.body === 'string') {
-          result = this.makeSpan(context, this.body);
-        } else {
-          result = this.makeSpan(context, _decompose(context, this.body));
-        }
-
-        result.type = this.type;
-      } else if (this.type === 'group' || this.type === 'root') {
-        result = this.decomposeGroup(context);
-      } else if (this.type === 'array') {
-        result = this.decomposeArray(context);
-      } else if (this.type === 'genfrac') {
-        result = this.decomposeGenfrac(context);
-      } else if (this.type === 'surd') {
-        result = this.decomposeSurd(context);
-      } else if (this.type === 'accent') {
-        result = this.decomposeAccent(context);
-      } else if (this.type === 'leftright') {
-        result = this.decomposeLeftright(context);
-      } else if (this.type === 'delim') {
-        result = makeSpan(null, '');
-        result.delim = this.delim;
-      } else if (this.type === 'sizeddelim') {
-        result = this.bind(context, _delimiters.default.makeSizedDelim(this.cls, this.delim, this.size, context));
-      } else if (this.type === 'line') {
-        result = this.decomposeLine(context);
-      } else if (this.type === 'overunder') {
-        result = this.decomposeOverunder(context);
-      } else if (this.type === 'overlap') {
-        // For llap (18), rlap (270), clap (0)
-        // smash (common), mathllap (0), mathrlap (0), mathclap (0)
-        // See https://www.tug.org/TUGboat/tb22-4/tb72perlS.pdf
-        // and https://tex.stackexchange.com/questions/98785/what-are-the-different-kinds-of-vertical-spacing-and-horizontal-spacing-commands
-        result = this.decomposeOverlap(context);
-      } else if (this.type === 'rule') {
-        result = this.decomposeRule(context);
-      } else if (this.type === 'styling') {//
-        // STYLING
-        //
-      } else if (this.type === 'msubsup') {
-        // The caret for this atom type is handled by its elements
-        result = makeOrd("\u200B");
-
-        if (phantomBase) {
-          result.height = phantomBase[0].height;
-          result.depth = phantomBase[0].depth;
-        }
-      } else if (this.type === 'mop') {
-        result = this.decomposeOp(context);
-      } else if (this.type === 'space') {
-        // A space literal
-        result = this.makeSpan(context, ' ');
-      } else if (this.type === 'spacing') {
-        // A spacing command (\quad, etc...)
-        if (this.body === "\u200B") {
-          // ZERO-WIDTH SPACE
-          result = this.makeSpan(context, "\u200B");
-        } else if (this.body === "\xA0") {
-          if (this.mode === 'math') {
-            result = this.makeSpan(context, ' ');
-          } else {
-            result = this.makeSpan(context, "\xA0");
-          }
-        } else if (this.width) {
-          result = makeSpan("\u200B", 'mspace ');
-
-          if (this.width > 0) {
-            result.setWidth(this.width);
-          } else {
-            result.setStyle('margin-left', this.width, 'em');
-          }
-        } else {
-          var spacingCls = {
-            'qquad': 'qquad',
-            'quad': 'quad',
-            'enspace': 'enspace',
-            ';': 'thickspace',
-            ':': 'mediumspace',
-            ',': 'thinspace',
-            '!': 'negativethinspace'
-          }[this.body] || 'quad';
-          result = makeSpan("\u200B", 'mspace ' + spacingCls);
-        }
-      } else if (this.type === 'mathstyle') {
-        context.setMathstyle(this.mathstyle);
-      } else if (this.type === 'box') {
-        result = this.decomposeBox(context);
-      } else if (this.type === 'enclose') {
-        result = this.decomposeEnclose(context);
-      } else if (this.type === 'command' || this.type === 'error') {
-        result = this.makeSpan(context, this.body);
-        result.classes = ''; // Override fonts and other attributes.
-
-        if (this.error) {
-          result.classes += ' ML__error';
-        }
-
-        if (this.suggestion) {
-          result.classes += ' ML__suggestion';
-        }
-      } else if (this.type === 'placeholder') {
-        result = this.makeSpan(context, '⬚');
-      } else if (this.type === 'first') {
-        // the `first` pseudo-type is used as a placeholder as
-        // the first element in a children list. This makes
-        // managing the list, and the caret selection, easier.
-        // ZERO-WIDTH SPACE
-        result = this.makeSpan(context, "\u200B");
-      } else {
-        //
-        // DEFAULT
-        //
-        console.assert(false, 'Unknown MathAtom type: "' + this.type + '"');
-      }
-
-      if (!result) return result;
-
-      if (this.caret && this.type !== 'styling' && this.type !== 'msubsup' && this.type !== 'command' && this.type !== 'placeholder' && this.type !== 'first') {
-        if (Array.isArray(result)) {
-          result[result.length - 1].caret = this.caret;
-        } else {
-          result.caret = this.caret;
-        }
-      } // Finally, attach any necessary superscript, subscripts
-
-
-      if (!this.limits && (this.superscript || this.subscript)) {
-        // If limits is set, the attachment of sup/sub was handled
-        // in the atom decomposition (e.g. decomposeOp, decomposeAccent)
-        if (Array.isArray(result)) {
-          var lastSpan = result[result.length - 1];
-          result[result.length - 1] = this.attachSupsub(context, lastSpan, lastSpan.type);
-        } else {
-          result = [this.attachSupsub(context, result, result.type)];
-        }
-      }
-
-      return Array.isArray(result) ? result : [result];
-    }
-  }, {
-    key: "attachSupsub",
-    value: function attachSupsub(context, nucleus, type) {
-      // If no superscript or subscript, nothing to do.
-      if (!this.superscript && !this.subscript) return nucleus; // Superscript and subscripts are discussed in the TeXbook
-      // on page 445-446, rules 18(a-f).
-      // TeX:14859-14945
-
-      var mathstyle = context.mathstyle;
-      var supmid = null;
-      var submid = null;
-
-      if (this.superscript) {
-        var sup = _decompose(context.sup(), this.superscript);
-
-        supmid = makeSpan(sup, mathstyle.adjustTo(mathstyle.sup()));
-      }
-
-      if (this.subscript) {
-        var sub = _decompose(context.sub(), this.subscript);
-
-        submid = makeSpan(sub, mathstyle.adjustTo(mathstyle.sub()));
-      } // Rule 18a
-
-
-      var supShift = 0;
-      var subShift = 0;
-
-      if (!this.isCharacterBox()) {
-        supShift = _span3.default.height(nucleus) - mathstyle.metrics.supDrop;
-        subShift = _span3.default.depth(nucleus) + mathstyle.metrics.subDrop;
-      } // Rule 18c
-
-
-      var minSupShift;
-
-      if (mathstyle === _mathstyle.default.DISPLAY) {
-        minSupShift = mathstyle.metrics.sup1;
-      } else if (mathstyle.cramped) {
-        minSupShift = mathstyle.metrics.sup3;
-      } else {
-        minSupShift = mathstyle.metrics.sup2;
-      } // scriptspace is a font-size-independent size, so scale it
-      // appropriately
-
-
-      var multiplier = _mathstyle.default.TEXT.sizeMultiplier * mathstyle.sizeMultiplier;
-      var scriptspace = 0.5 / _fontMetrics.METRICS.ptPerEm / multiplier;
-      var supsub = null;
-
-      if (submid && supmid) {
-        // Rule 18e
-        supShift = Math.max(supShift, minSupShift, supmid.depth + 0.25 * mathstyle.metrics.xHeight);
-        subShift = Math.max(subShift, mathstyle.metrics.sub2);
-        var ruleWidth = _fontMetrics.METRICS.defaultRuleThickness;
-
-        if (supShift - _span3.default.depth(supmid) - (_span3.default.height(submid) - subShift) < 4 * ruleWidth) {
-          subShift = 4 * ruleWidth - (supShift - supmid.depth) + _span3.default.height(submid);
-
-          var psi = 0.8 * mathstyle.metrics.xHeight - (supShift - _span3.default.depth(supmid));
-
-          if (psi > 0) {
-            supShift += psi;
-            subShift -= psi;
-          }
-        }
-
-        supsub = makeVlist(context, [submid, subShift, supmid, -supShift], 'individualShift'); // Subscripts shouldn't be shifted by the nucleus' italic correction.
-        // Account for that by shifting the subscript back the appropriate
-        // amount. Note we only do this when the nucleus is a single symbol.
-
-        if (this.symbol) {
-          supsub.children[0].setLeft(-_span3.default.italic(nucleus));
-        }
-      } else if (submid && !supmid) {
-        // Rule 18b
-        subShift = Math.max(subShift, mathstyle.metrics.sub1, _span3.default.height(submid) - 0.8 * mathstyle.metrics.xHeight);
-        supsub = makeVlist(context, [submid], 'shift', subShift);
-        supsub.children[0].setRight(scriptspace);
-
-        if (this.isCharacterBox()) {
-          supsub.children[0].setLeft(-_span3.default.italic(nucleus));
-        }
-      } else if (!submid && supmid) {
-        // Rule 18c, d
-        supShift = Math.max(supShift, minSupShift, supmid.depth + 0.25 * mathstyle.metrics.xHeight);
-        supsub = makeVlist(context, [supmid], 'shift', -supShift);
-        supsub.children[0].setRight(scriptspace);
-      } // Display the caret *following* the superscript and subscript,
-      // so attach the caret to the 'msubsup' element.
-
-
-      var supsubContainer = makeSpan(supsub, 'msubsup');
-
-      if (this.caret) {
-        supsubContainer.caret = this.caret;
-      }
-
-      return _span3.default.makeSpanOfType(type, [nucleus, supsubContainer]);
-    }
-  }, {
-    key: "attachLimits",
-    value: function attachLimits(context, nucleus, nucleusShift, slant) {
-      var limitAbove = this.superscript ? makeSpan(_decompose(context.sup(), this.superscript), context.mathstyle.adjustTo(context.mathstyle.sup())) : null;
-      var limitBelow = this.subscript ? makeSpan(_decompose(context.sub(), this.subscript), context.mathstyle.adjustTo(context.mathstyle.sub())) : null;
-      return makeStack(context, nucleus, nucleusShift, slant, limitAbove, limitBelow, 'mop');
-    }
-    /**
-     * Add an ID attribute to both the span and this atom so that the atom
-     * can be retrieved from the span later on (e.g. when the span is clicked on)
-     * @param {Context} context
-     * @param {Span} span
-     * @method MathAtom#bind
-     */
-
-  }, {
-    key: "bind",
-    value: function bind(context, span) {
-      if (this.type !== 'first' && this.body !== "\u200B") {
-        this.id = makeID(context);
-
-        if (this.id) {
-          if (!span.attributes) span.attributes = {};
-          span.attributes['data-atom-id'] = this.id;
-        }
-      }
-
-      return span;
-    }
-    /**
-     * Create a span with the specified body and with a class attribute
-     * equal to the type ('mbin', 'inner', 'spacing', etc...)
-     *
-     * @param {Context} context
-     * @param {(string|Span[])} body
-     * @return {Span}
-     * @method MathAtom#makeSpan
-     */
-
-  }, {
-    key: "makeSpan",
-    value: function makeSpan(context, body) {
-      var type = this.type === 'textord' ? 'mord' : this.type;
-
-      var result = _span3.default.makeSpanOfType(type, body); // The font family is determined by:
-      // - the base font family associated with this atom (optional). For example,
-      // some atoms such as some functions ('\sin', '\cos', etc...) or some
-      // symbols ('\Z') have an explicit font family. This overrides any 
-      // other font family
-      // - the user-specified font family that has been explicitly applied to 
-      // this atom
-      // - the font family automatically determined in math mode, for example
-      // which italicizes some characters, but which can be overridden
-
-
-      var style = this.getStyle();
-      result.applyStyle(style); // Apply size correction
-
-      var size = style && style.fontSize ? style.fontSize : 'size5';
-
-      if (size !== context.parentSize) {
-        result.classes += ' sizing reset-' + context.parentSize;
-        result.classes += ' ' + size;
-      } else if (context.parentSize !== context.size) {
-        result.classes += ' sizing reset-' + context.parentSize;
-        result.classes += ' ' + context.size;
-      }
-
-      result.maxFontSize = Math.max(result.maxFontSize, context.sizeMultiplier || 1.0); // Set other attributes
-
-      if (this.mode === 'text') result.classes += ' ML__text';
-      if (context.mathstyle.isTight()) result.isTight = true; // The italic correction applies only in math mode
-
-      if (this.mode !== 'math') result.italic = 0;
-      result.setRight(result.italic); // Italic correction
-
-      if (typeof context.opacity === 'number') result.setStyle('opacity', context.opacity); // To retrieve the atom from a span, for example when the span is clicked
-      // on, attach a randomly generated ID to the span and associate it
-      // with the atom.
-
-      this.bind(context, result);
-
-      if (this.caret) {
-        // If this has a super/subscript, the caret will be attached
-        // to the 'msubsup' atom, so no need to have it here.
-        if (!this.superscript && !this.subscript) {
-          result.caret = this.caret;
-          if (context.mathstyle.isTight()) result.isTight = true;
-        }
-      }
-
-      return result;
-    }
-  }]);
-
-  return MathAtom;
-}();
-/**
- * Used in `decomposeArray` to create a column separator span.
- *
- * @param {number} width
- * @memberof module:mathAtom
- * @private
- */
-
-
-function makeColGap(width) {
-  var separator = makeSpan("\u200B", 'arraycolsep');
-  separator.setWidth(width, 'em');
-  return separator;
-}
-/**
- * Used in decomposeArray to create a column of repeating elements.
- * @memberof module:mathAtom
- * @private
- */
-
-
-function makeColOfRepeatingElements(context, body, offset, elem) {
-  var col = [];
-  var _iteratorNormalCompletion18 = true;
-  var _didIteratorError18 = false;
-  var _iteratorError18 = undefined;
-
-  try {
-    for (var _iterator18 = body[Symbol.iterator](), _step18; !(_iteratorNormalCompletion18 = (_step18 = _iterator18.next()).done); _iteratorNormalCompletion18 = true) {
-      var row = _step18.value;
-      var cell = makeSpan(_decompose(context, elem));
-      cell.depth = row.depth;
-      cell.height = row.height;
-      col.push(cell);
-      col.push(row.pos - offset);
-    }
-  } catch (err) {
-    _didIteratorError18 = true;
-    _iteratorError18 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion18 && _iterator18.return != null) {
-        _iterator18.return();
-      }
-    } finally {
-      if (_didIteratorError18) {
-        throw _iteratorError18;
-      }
-    }
-  }
-
-  return makeVlist(context, col, 'individualShift');
-}
-
-function makeID(context) {
-  var result;
-
-  if (typeof context.generateID === 'boolean' && context.generateID) {
-    result = Date.now().toString(36).slice(-2) + Math.floor(Math.random() * 0x186a0).toString(36);
-  } else if (typeof context.generateID !== 'boolean') {
-    if (context.generateID.overrideID) {
-      result = context.generateID.overrideID;
-    } else {
-      result = context.generateID.seed.toString(36);
-      context.generateID.seed += 1;
-    }
-  }
-
-  return result;
-} ////////////////////////////////////////////////////////////////////////////////
-////////////////////////////////////////////////////////////////////////////////
-////////////////////////////////////////////////////////////////////////////////
-
-/**
- * Combine a nucleus with an atom above and an atom below. Used to form
- * limits and used by \stackrel.
- *
- * @param {Context} context
- * @param {Span} nucleus The base over and under which the atoms will
- * be placed.
- * @param {number} nucleusShift The vertical shift of the nucleus from 
- * the baseline.
- * @param {number} slant For operators that have a slant, such as \int, 
- * indicate by how much to horizontally offset the above and below atoms
- * @param {Span} above
- * @param {Span} below
- * @param {string} type The type ('mop', 'mrel', etc...) of the result
- * @return {Span}
- * @memberof module:mathAtom
- * @private
- */
-
-
-function makeStack(context, nucleus, nucleusShift, slant, above, below, type) {
-  // If nothing above and nothing below, nothing to do.
-  if (!above && !below) return nucleus; // IE 8 clips \int if it is in a display: inline-block. We wrap it
-  // in a new span so it is an inline, and works.
-  // @todo: revisit
-
-  nucleus = makeSpan(nucleus);
-  var aboveShift = 0;
-  var belowShift = 0;
-
-  if (above) {
-    aboveShift = Math.max(_fontMetrics.METRICS.bigOpSpacing1, _fontMetrics.METRICS.bigOpSpacing3 - above.depth);
-  }
-
-  if (below) {
-    belowShift = Math.max(_fontMetrics.METRICS.bigOpSpacing2, _fontMetrics.METRICS.bigOpSpacing4 - below.height);
-  }
-
-  var result = null;
-
-  if (below && above) {
-    var bottom = _fontMetrics.METRICS.bigOpSpacing5 + _span3.default.height(below) + _span3.default.depth(below) + belowShift + _span3.default.depth(nucleus) + nucleusShift;
-    result = makeVlist(context, [_fontMetrics.METRICS.bigOpSpacing5, below, belowShift, nucleus, aboveShift, above, _fontMetrics.METRICS.bigOpSpacing5], 'bottom', bottom); // Here, we shift the limits by the slant of the symbol. Note
-    // that we are supposed to shift the limits by 1/2 of the slant,
-    // but since we are centering the limits adding a full slant of
-    // margin will shift by 1/2 that.
-
-    result.children[0].setLeft(-slant);
-    result.children[2].setLeft(slant);
-  } else if (below && !above) {
-    var top = _span3.default.height(nucleus) - nucleusShift;
-    result = makeVlist(context, [_fontMetrics.METRICS.bigOpSpacing5, below, belowShift, nucleus], 'top', top); // See comment above about slants
-
-    result.children[0].setLeft(-slant);
-  } else if (!below && above) {
-    var _bottom = _span3.default.depth(nucleus) + nucleusShift;
-
-    result = makeVlist(context, [nucleus, aboveShift, above, _fontMetrics.METRICS.bigOpSpacing5], 'bottom', _bottom); // See comment above about slants
-
-    result.children[1].setLeft(slant);
-  }
-
-  return _span3.default.makeSpanOfType(type, result, 'op-limits');
-}
-/**
- * Return a list of spans equivalent to atoms.
- * A span is the most elementary type possible, for example 'text'
- * or 'vlist', while the input atoms may be more abstract and complex,
- * such as 'genfrac'
- *
- * @param {Context} context Font family, variant, size, color, etc...
- * @param {(MathAtom|MathAtom[])} atoms
- * @return {Span[]}
- * @memberof module:core/mathatom
- * @private
- */
-
-
-function _decompose(context, atoms) {
-  if (!(context instanceof _context.default.Context)) {
-    // We can be passed either a Context object, or 
-    // a simple object with some properties set.
-    context = new _context.default.Context(context);
-  } // In most cases we want to display selection,
-  // except if the generateID.groupNumbers flag is set which is used for
-  // read aloud.
-
-
-  var displaySelection = !context.generateID || !context.generateID.groupNumbers;
-  var result = [];
-
-  if (Array.isArray(atoms)) {
-    if (atoms.length === 0) {
-      return result;
-    } else if (atoms.length === 1) {
-      result = atoms[0].decompose(context);
-
-      if (result && displaySelection && atoms[0].isSelected) {
-        result.forEach(function (x) {
-          return x.selected(true);
-        });
-      }
-
-      console.assert(!result || Array.isArray(result));
-    } else {
-      var previousType = 'none';
-      var nextType = atoms[1].type;
-      var selection = [];
-      var digitStringID = null;
-      var phantomBase = null;
-
-      for (var i = 0; i < atoms.length; i++) {
-        // Is this a binary operator ('+', '-', etc...) that potentially
-        // needs to be adjusted to a unary operator?
-        // 
-        // When preceded by a mbin, mopen, mrel, mpunct, mop or
-        // when followed by a mrel, mclose or mpunct
-        // or if preceded or followed by no sibling, a 'mbin' becomes a
-        // 'mord'
-        if (atoms[i].type === 'mbin') {
-          if (/first|none|mrel|mpunct|mopen|mbin|mop/.test(previousType) || /none|mrel|mpunct|mclose/.test(nextType)) {
-            atoms[i].type = 'mord';
-          }
-        } // If this is a scaffolding supsub, we'll use the
-        // phantomBase from the previous atom to position the supsub.
-        // Otherwise, no need for the phantomBase
-
-
-        if (atoms[i].body !== "\u200B" || !atoms[i].superscript && !atoms[i].subscript) {
-          phantomBase = null;
-        }
-
-        if (context.generateID.groupNumbers && digitStringID && atoms[i].type === 'mord' && /[0-9,.]/.test(atoms[i].latex)) {
-          context.generateID.overrideID = digitStringID;
-        }
-
-        var span = atoms[i].decompose(context, phantomBase);
-
-        if (context.generateID) {
-          context.generateID.overrideID = null;
-        }
-
-        if (span) {
-          // The result from decompose is always an array
-          // Flatten it (i.e. [[a1, a2], b1, b2] -> [a1, a2, b1, b2]
-          var flat = [].concat.apply([], span);
-          phantomBase = flat; // If this is a digit, keep track of it
-
-          if (context.generateID && context.generateID.groupNumbers) {
-            if (atoms[i].type === 'mord' && /[0-9,.]/.test(atoms[i].latex)) {
-              if (!digitStringID) {
-                digitStringID = atoms[i].id;
-              }
-            }
-
-            if ((atoms[i].type !== 'mord' || /[0-9,.]/.test(atoms[i].latex) || atoms[i].superscript || atoms[i].subscript) && digitStringID) {
-              // Done with digits
-              digitStringID = null;
-            }
-          }
-
-          if (displaySelection && atoms[i].isSelected) {
-            selection = selection.concat(flat);
-            selection.forEach(function (x) {
-              return x.selected(true);
-            });
-          } else {
-            if (selection.length > 0) {
-              // There was a selection, but we're out of it now
-              // Append the selection
-              result = [].concat(_toConsumableArray(result), _toConsumableArray(selection));
-              selection = [];
-            }
-
-            result = result.concat(flat);
-          }
-        } // Since the next atom (and this atom!) could have children
-        // use getFinal...() and getInitial...() to get the closest
-        // atom linearly.
-
-
-        previousType = atoms[i].getFinalBaseElement().type;
-        nextType = atoms[i + 1] ? atoms[i + 1].getInitialBaseElement().type : 'none';
-      } // Is there a leftover selection?
-
-
-      if (selection.length > 0) {
-        result = [].concat(_toConsumableArray(result), _toConsumableArray(selection));
-        selection = [];
-      }
-    }
-  } else if (atoms) {
-    // This is a single atom, decompose it
-    result = atoms.decompose(context);
-
-    if (result && displaySelection && atoms.isSelected) {
-      result.forEach(function (x) {
-        return x.selected(true);
-      });
-    }
-  }
-
-  if (!result || result.length === 0) return null;
-  console.assert(Array.isArray(result) && result.length > 0); // If the mathstyle changed between the parent and the current atom,
-  // account for the size difference
-
-  if (context.mathstyle !== context.parentMathstyle) {
-    var factor = context.mathstyle.sizeMultiplier / context.parentMathstyle.sizeMultiplier;
-    var _iteratorNormalCompletion19 = true;
-    var _didIteratorError19 = false;
-    var _iteratorError19 = undefined;
-
-    try {
-      for (var _iterator19 = result[Symbol.iterator](), _step19; !(_iteratorNormalCompletion19 = (_step19 = _iterator19.next()).done); _iteratorNormalCompletion19 = true) {
-        var _span = _step19.value;
-        console.assert(!Array.isArray(_span));
-        console.assert(typeof _span.height === 'number' && isFinite(_span.height));
-        _span.height *= factor;
-        _span.depth *= factor;
-      }
-    } catch (err) {
-      _didIteratorError19 = true;
-      _iteratorError19 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion19 && _iterator19.return != null) {
-          _iterator19.return();
-        }
-      } finally {
-        if (_didIteratorError19) {
-          throw _iteratorError19;
-        }
-      }
-    }
-  } // If the size changed between the parent and the current group,
-  // account for the size difference
-
-
-  if (context.size !== context.parentSize) {
-    var _factor = SIZING_MULTIPLIER[context.size] / SIZING_MULTIPLIER[context.parentSize];
-
-    var _iteratorNormalCompletion20 = true;
-    var _didIteratorError20 = false;
-    var _iteratorError20 = undefined;
-
-    try {
-      for (var _iterator20 = result[Symbol.iterator](), _step20; !(_iteratorNormalCompletion20 = (_step20 = _iterator20.next()).done); _iteratorNormalCompletion20 = true) {
-        var _span2 = _step20.value;
-        console.assert(!Array.isArray(_span2));
-        console.assert(typeof _span2.height === 'number' && isFinite(_span2.height));
-        _span2.height *= _factor;
-        _span2.depth *= _factor;
-      }
-    } catch (err) {
-      _didIteratorError20 = true;
-      _iteratorError20 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion20 && _iterator20.return != null) {
-          _iterator20.return();
-        }
-      } finally {
-        if (_didIteratorError20) {
-          throw _iteratorError20;
-        }
-      }
-    }
-  }
-
-  return result;
-}
-/**
- * Return an atom suitable for use as the root of a formula.
- *
- * @param {string} parseMode
- * @param {MathAtom[]} body
- * @return {MathAtom[]}
- * @memberof module:core/mathatom
- * @private
- */
-
-
-function makeRoot(parseMode, body) {
-  parseMode = parseMode || 'math';
-  var result = new MathAtom(parseMode, 'root', body || []);
-
-  if (result.body.length === 0 || result.body[0].type !== 'first') {
-    result.body.unshift(new MathAtom('', 'first'));
-  }
-
-  return result;
-} // Export the public interface for this module
-
-
-var _default = {
-  MathAtom: MathAtom,
-  decompose: _decompose,
-  makeRoot: makeRoot,
-  GREEK_REGEX: GREEK_REGEX
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/mathstyle.js b/dist/core/mathstyle.js
deleted file mode 100755
index e6b43bd68..000000000
--- a/dist/core/mathstyle.js
+++ /dev/null
@@ -1,213 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _fontMetrics = require("./fontMetrics.js");
-
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-var metrics = [{}, {}, {}];
-/* textstyle, scriptstyle, scriptscriptstyle */
-
-var i;
-
-for (var key in _fontMetrics.SIGMAS) {
-  if (_fontMetrics.SIGMAS.hasOwnProperty(key)) {
-    for (i = 0; i < 3; i++) {
-      metrics[i][key] = _fontMetrics.SIGMAS[key][i];
-    }
-  }
-}
-
-for (i = 0; i < 3; i++) {
-  metrics[i].emPerEx = _fontMetrics.SIGMAS.xHeight[i] / _fontMetrics.SIGMAS.quad[i];
-}
-/**
- * @property {number} id unique id for the style
- * @property {number} size (which is the same for cramped and uncramped version
- * of a style)
- * @property {number}  size multiplier, which gives the size difference between
- * a style and textstyle.
- * @property {boolean}  cramped flag
- * @memberof module:core/mathstyle
- * @class module:core/mathstyle#Mathstyle
- * @private
- */
-
-
-var Mathstyle =
-/*#__PURE__*/
-function () {
-  function Mathstyle(id, size, multiplier, cramped) {
-    _classCallCheck(this, Mathstyle);
-
-    this.id = id;
-    this.size = size;
-    this.cramped = cramped;
-    this.sizeMultiplier = multiplier;
-    this.metrics = metrics[size > 0 ? size - 1 : 0];
-  }
-  /**
-   * Get the style of a superscript given a base in the current style.
-   * @method module:mathstyle.MathStyle#sup
-   * @private
-   */
-
-
-  _createClass(Mathstyle, [{
-    key: "sup",
-    value: function sup() {
-      return styles[_sup[this.id]];
-    }
-    /**
-     * Get the style of a subscript given a base in the current style.
-     * @method module:mathstyle.MathStyle#sub
-     * @private
-     */
-
-  }, {
-    key: "sub",
-    value: function sub() {
-      return styles[_sub[this.id]];
-    }
-    /**
-     * Get the style of a fraction numerator given the fraction in the current
-     * style.
-     * @method module:mathstyle.MathStyle#fracNum
-     * @private
-     */
-
-  }, {
-    key: "fracNum",
-    value: function fracNum() {
-      return styles[_fracNum[this.id]];
-    }
-    /**
-     * Get the style of a fraction denominator given the fraction in the current
-     * style.
-     * @method module:mathstyle.MathStyle#fracDen
-     * @private
-     */
-
-  }, {
-    key: "fracDen",
-    value: function fracDen() {
-      return styles[_fracDen[this.id]];
-    }
-    /**
-     * Get the cramped version of a style (in particular, cramping a cramped style
-     * doesn't change the style).
-     * @method module:mathstyle.MathStyle#cramp
-     * @private
-     */
-
-  }, {
-    key: "cramp",
-    value: function cramp() {
-      return styles[_cramp[this.id]];
-    }
-    /**
-     * HTML class name, like `displaystyle cramped`
-     * @method module:mathstyle.MathStyle#cls
-     * @private
-     */
-
-  }, {
-    key: "cls",
-    value: function cls() {
-      return sizeNames[this.size];
-    }
-    /**
-     * HTML Reset class name, like 'reset-textstyle'
-     * @method module:mathstyle.MathStyle#adjustTo
-     * @private
-     */
-
-  }, {
-    key: "adjustTo",
-    value: function adjustTo(newStyle) {
-      var result = ADJUST_NAMES[this.size][newStyle.size];
-      if (result.length > 0) result = ' ' + result;
-      return result;
-    }
-    /**
-     * Return if this style is tightly spaced (scriptstyle/scriptscriptstyle)
-     * @method module:mathstyle.MathStyle#isTight
-     * @private
-     */
-
-  }, {
-    key: "isTight",
-    value: function isTight() {
-      return this.size >= 2;
-    }
-  }]);
-
-  return Mathstyle;
-}(); // IDs of the different styles
-
-
-var D = 0;
-var Dc = 1;
-var T = 2;
-var Tc = 3;
-var S = 4;
-var Sc = 5;
-var SS = 6;
-var SSc = 7; // Instances of the different styles
-
-var styles = [new Mathstyle(D, 0, 1.0, false), new Mathstyle(Dc, 0, 1.0, true), new Mathstyle(T, 1, 1.0, false), new Mathstyle(Tc, 1, 1.0, true), new Mathstyle(S, 2, 0.7, false), new Mathstyle(Sc, 2, 0.7, true), new Mathstyle(SS, 3, 0.5, false), new Mathstyle(SSc, 3, 0.5, true)];
-/**
- * Maps a string (or a Mathstyle) to an actual Mathstyle object.
- * @param {(Mathstyle|string)} s
- * @return {Mathstyle}
- * @memberof module:mathstyle
- * @private
- */
-
-function toMathstyle(s) {
-  if (!s) return s;
-  if (_typeof(s) === 'object') return s;
-  var STYLE_NAMES = {
-    'displaystyle': styles[D],
-    'textstyle': styles[T],
-    'scriptstyle': styles[S],
-    'scriptscriptstyle': styles[SS]
-  };
-  console.assert(STYLE_NAMES[s], 'unknown style: "', s, '"');
-  return STYLE_NAMES[s];
-} // String names for the different sizes
-
-
-var sizeNames = ['displaystyle textstyle', 'textstyle', 'scriptstyle', 'scriptscriptstyle'];
-var ADJUST_NAMES = [['', // 'reset-textstyle displaystyle textstyle',
-'', // 'reset-textstyle textstyle',
-'reset-textstyle scriptstyle', 'reset-textstyle scriptscriptstyle'], ['reset-textstyle displaystyle textstyle', '', // 'reset-textstyle textstyle',
-'reset-textstyle scriptstyle', 'reset-textstyle scriptscriptstyle'], ['reset-scriptstyle textstyle displaystyle', 'reset-scriptstyle textstyle', '', // 'reset-scriptstyle scriptstyle',
-'reset-scriptstyle scriptscriptstyle'], ['reset-scriptscriptstyle textstyle displaystyle', 'reset-scriptscriptstyle textstyle', 'reset-scriptscriptstyle scriptstyle', '' // 'reset-scriptscriptstyle scriptscriptstyle'
-]]; // Lookup tables for switching from one style to another
-
-var _sup = [S, Sc, S, Sc, SS, SSc, SS, SSc];
-var _sub = [Sc, Sc, Sc, Sc, SSc, SSc, SSc, SSc];
-var _fracNum = [T, Tc, S, Sc, SS, SSc, SS, SSc];
-var _fracDen = [Tc, Tc, Sc, Sc, SSc, SSc, SSc, SSc];
-var _cramp = [Dc, Dc, Tc, Tc, Sc, Sc, SSc, SSc]; // We only export some of the styles. Also, we don't export the `Mathstyle`
-// class so no more styles can be generated.
-
-var _default = {
-  DISPLAY: styles[D],
-  TEXT: styles[T],
-  SCRIPT: styles[S],
-  SCRIPTSCRIPT: styles[SS],
-  toMathstyle: toMathstyle
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/parser.js b/dist/core/parser.js
deleted file mode 100644
index 3bab51f01..000000000
--- a/dist/core/parser.js
+++ /dev/null
@@ -1,1643 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _definitions = _interopRequireDefault(require("./definitions.js"));
-
-var _color = _interopRequireDefault(require("./color.js"));
-
-var _fontMetrics = _interopRequireDefault(require("./fontMetrics.js"));
-
-var _lexer = _interopRequireDefault(require("./lexer.js"));
-
-var _mathAtom = _interopRequireDefault(require("./mathAtom.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
-
-function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-var MathAtom = _mathAtom.default.MathAtom;
-/**
- * A parser transforms a list of tokens into a list of MathAtom.
- *
- * @param {Token[]} tokens - An array of tokens generated by the lexer.
- * @param {Object.<string>} [args] - An optional list of arguments. `#n` tokens will be
- * substituted with the corresponding element in the args object. This is used
- * when parsing macros.
- * @class module:core/parser#Parser
- * @property {Object.<string, string>} [macros] - Optional macro definitions.
- * @property {Token[]} tokens - An array of tokens generated by the lexer.
- * @property {Object.<string>} args - Optional arguments to substitute the `#` token.
- * @property {Object.<string, string>} macros - A dictionary of objects, index by the name of
- * the macro, with the following keys:
- *    * args: an integer, the number of arguments, default 0. They can be referenced as #0,
- *       #1, #2... inside the definition of the macro
- *    * def: a string, the definition of the macro, which can reference other macros
- * @property {number} index - The current token to be parsed: index in `this.tokens`
- * @property {MathAtom[]} mathList - Accumulated result of the parsing by
- * `parseAtom()`
- * @property {object} style - The font, weight, color, etc.. to apply to the 
- * upcoming tokens
- * @property {string} parseMode - The parse mode indicates the syntax rules to
- * use to parse the upcoming tokens.
- *  Valid values include:
- *  - `'math'`: spaces are ignored, math functions are allowed
- *  - `'text'`: spaces are accounted for, math functions are ignored
- *  - `'string'`
- *  - `'color'`: color name, hex value: `'#fff'`, `'#a0a0a0'`
- *  - `'number'`: `+/-12.56`
- *  - `'dimen'`: `'25mu'`, `'2pt'`
- *  - `'skip'`: `'25mu plus 2em minus fiLll'`, `'2pt'`
- *  - `'colspec'`: formating of a column in tabular environment, e.g. `'r@{.}l'`
- * @property {boolean} tabularMode - When in tabular mode, `'&'` is interpreted as
- *  a column separator and `'\'` as a row separator. Used for matrixes, etc...
- * @property {number} endCount - Counter to prevent deadlock. If `end()` is
- * called too many times (1,000) in a row for the same token, bail.
- * @private
- */
-
-var Parser =
-/*#__PURE__*/
-function () {
-  function Parser(tokens, args, macros) {
-    _classCallCheck(this, Parser);
-
-    this.tokens = tokens;
-    this.index = 0;
-    this.args = args;
-    this.macros = macros;
-    this.mathList = [];
-    this.style = {};
-    this.parseMode = 'math';
-    this.tabularMode = false;
-    this.endCount = 0;
-  }
-
-  _createClass(Parser, [{
-    key: "swapMathList",
-    value: function swapMathList(newMathList) {
-      var result = this.mathList;
-      this.mathList = newMathList || [];
-      return result;
-    }
-  }, {
-    key: "swapParseMode",
-    value: function swapParseMode(mode) {
-      var result = this.parseMode;
-      this.parseMode = mode;
-      return result;
-    }
-    /**
-     * True if we've reached the end of the token stream.
-     * @method module:core/parser#Parser#end
-     * @private
-     */
-
-  }, {
-    key: "end",
-    value: function end() {
-      // To prevent a deadlock, count how many times end() is called without the
-      // index advancing. If it happens more than 1,000 times in a row,
-      // assume something is broken and pretend the stream is finished.
-      this.endCount++;
-      return this.index >= this.tokens.length || this.endCount > 1000;
-    }
-  }, {
-    key: "get",
-    value: function get() {
-      this.endCount = 0;
-      return this.index < this.tokens.length ? this.tokens[this.index++] : null;
-    }
-  }, {
-    key: "peek",
-    value: function peek(offset) {
-      var index = this.index + (offset ? offset : 0);
-      return index < this.tokens.length ? this.tokens[index] : null;
-    }
-    /**
-     * Return the last atom of the math list
-     * If there isn't one, insert a `msubsup` and return it.
-     * @method Parser#lastMathAtom
-     */
-
-  }, {
-    key: "lastMathAtom",
-    value: function lastMathAtom() {
-      var lastType = this.mathList.length === 0 ? 'none' : this.mathList[this.mathList.length - 1].type;
-
-      if (lastType !== 'mop' && lastType !== 'msubsup') {
-        // ZERO WIDTH SPACE
-        var lastAtom = new MathAtom(this.parseMode, 'msubsup', "\u200B");
-        lastAtom.attributes = {
-          'aria-hidden': true
-        };
-        this.mathList.push(lastAtom);
-      }
-
-      return this.mathList[this.mathList.length - 1];
-    }
-    /**
-     * @param {string} type
-     * @return {boolean} True if the next token is of the specified type
-     * @method module:core/parser#Parser#hasToken
-     */
-
-  }, {
-    key: "hasToken",
-    value: function hasToken(type) {
-      var index = this.index;
-      return index < this.tokens.length ? this.tokens[index].type === type : false;
-    }
-    /**
-     * @param {string} [value]
-     * @return {boolean} True if the next token is of type `'literal` and has the
-     * specified value. If `value` is empty, return true if the token is of type
-     * `'literal'`
-     * @method Parser#hasLiteral
-     */
-
-  }, {
-    key: "hasLiteral",
-    value: function hasLiteral(value) {
-      var index = this.index;
-      return index < this.tokens.length ? this.tokens[index].type === 'literal' && (!value || this.tokens[index].value === value) : false;
-    }
-    /**
-     * @param {RegEx} pattern
-     * @return {boolean} True if the next token is of type `'literal` and matches
-     * the specified regular expression pattern.
-     * @method module:core/parser#Parser#hasLiteralPattern
-     */
-
-  }, {
-    key: "hasLiteralPattern",
-    value: function hasLiteralPattern(pattern) {
-      return this.hasToken('literal') && pattern.test(this.tokens[this.index].value);
-    }
-  }, {
-    key: "hasCommand",
-    value: function hasCommand(command) {
-      console.assert(command === '\\' || command.charAt(0) !== '\\', 'hasCommand() does not require a \\');
-      var index = this.index;
-      return index < this.tokens.length ? this.tokens[index].type === 'command' && this.tokens[index].value === command : false;
-    }
-  }, {
-    key: "hasInfixCommand",
-    value: function hasInfixCommand() {
-      var index = this.index;
-
-      if (index < this.tokens.length && this.tokens[index].type === 'command') {
-        var info = _definitions.default.getInfo('\\' + this.tokens[index].value, this.parseMode, this.macros);
-
-        return info && info.infix;
-      }
-
-      return false;
-    }
-  }, {
-    key: "hasColumnSeparator",
-    value: function hasColumnSeparator() {
-      var index = this.index;
-      return this.tabularMode && index < this.tokens.length ? this.tokens[index].type === 'literal' && this.tokens[index].value === '&' : false;
-    }
-  }, {
-    key: "hasRowSeparator",
-    value: function hasRowSeparator() {
-      var index = this.index;
-      return this.tabularMode && index < this.tokens.length ? this.tokens[index].type === 'command' && (this.tokens[index].value === '\\' || this.tokens[index].value === 'cr') : false;
-    }
-  }, {
-    key: "parseColumnSeparator",
-    value: function parseColumnSeparator() {
-      if (this.hasColumnSeparator()) {
-        this.index++;
-        return true;
-      }
-
-      return false;
-    }
-    /**
-     * Return the appropriate value for a placeholder, either a default
-     * one, or if a value was provided for #? via args, that value.
-     */
-
-  }, {
-    key: "placeholder",
-    value: function placeholder() {
-      if (this.args && typeof this.args['?'] === 'string') {
-        // If there is a specific value defined for the placeholder,
-        // use it.
-        return parseTokens(_lexer.default.tokenize(this.args['?']), this.parseMode, null, this.macros);
-      } // U+2753 = BLACK QUESTION MARK ORNAMENT
-
-
-      var result = new MathAtom(this.parseMode, 'placeholder', '?', this.style);
-      result.captureSelection = true;
-      return [result];
-    }
-  }, {
-    key: "hasImplicitCommand",
-    value: function hasImplicitCommand(commands) {
-      if (this.index < this.tokens.length) {
-        var token = this.tokens[this.index];
-
-        if (token.type === 'command') {
-          return commands.includes(token.value);
-        }
-      }
-
-      return false;
-    }
-  }, {
-    key: "parseRowSeparator",
-    value: function parseRowSeparator() {
-      if (this.hasRowSeparator()) {
-        this.index++;
-        return true;
-      }
-
-      return false;
-    }
-    /**
-     * @param {string} type
-     * @method module:core/parser#Parser#parseToken
-     */
-
-  }, {
-    key: "parseToken",
-    value: function parseToken(type) {
-      if (this.hasToken(type)) {
-        this.index++;
-        return true;
-      }
-
-      return false;
-    }
-  }, {
-    key: "skipWhitespace",
-    value: function skipWhitespace() {
-      var found = false;
-
-      while (this.hasToken('space')) {
-        this.index++;
-        found = true;
-      }
-
-      return found;
-    }
-  }, {
-    key: "skipUntilToken",
-    value: function skipUntilToken(type) {
-      while (!this.end() && !this.parseToken(type)) {
-        this.get();
-      }
-    }
-  }, {
-    key: "parseCommand",
-    value: function parseCommand(command) {
-      if (this.hasCommand(command)) {
-        this.index++;
-        return true;
-      }
-
-      return false;
-    }
-  }, {
-    key: "parseLiteral",
-    value: function parseLiteral(literal) {
-      if (this.hasLiteral(literal)) {
-        this.index++;
-        return true;
-      }
-
-      return false;
-    }
-  }, {
-    key: "parseFiller",
-    value: function parseFiller() {
-      var skipped = false;
-      var done = false;
-
-      do {
-        var skippedSpace = this.skipWhitespace();
-        var skippedRelax = this.parseCommand('relax');
-        skipped = skipped || skippedSpace || skippedRelax;
-        done = !skippedSpace && !skippedRelax;
-      } while (!done);
-
-      return skipped;
-    }
-    /**
-     * Keywords are used to specify dimensions, and for various other
-     * syntactic constructs. Unlike commands, they are not case sensitive.
-     * There are 25 keywords:
-     * at by bp cc cm dd depth em ex fil fill filll height in minus
-     * mm mu pc plus pt sp spread to true width
-     *
-     * TeX: 8212
-     * @param {string} keyword
-     * @return {boolean} true if the expected keyword is present
-     * @method module:core/parser#Parser#parseKeyword
-     * @private
-     */
-
-  }, {
-    key: "parseKeyword",
-    value: function parseKeyword(keyword) {
-      var savedIndex = this.index;
-      var done = this.end();
-      var value = '';
-
-      while (!done) {
-        var token = this.get();
-
-        if (token.type === 'literal') {
-          value += token.value;
-        }
-
-        done = this.end() || token.type !== 'literal' || value.length >= keyword.length;
-      }
-
-      var hasKeyword = keyword.toUpperCase() === value.toUpperCase();
-
-      if (!hasKeyword) {
-        this.index = savedIndex;
-      }
-
-      return hasKeyword;
-    }
-    /**
-     * Return a sequence of characters as a string.
-     * i.e. 'abcd' returns 'abcd'.
-     * Terminates on the first non-character encountered
-     * e.g. '{', '}' etc...
-     * Will also terminate on ']'
-     * @return {string}
-     * @method module:core/parser#Parser#scanString
-     * @private
-     */
-
-  }, {
-    key: "scanString",
-    value: function scanString() {
-      var result = '';
-      var done = this.end();
-
-      while (!done) {
-        if (this.hasLiteral(']')) {
-          done = true;
-        } else if (this.hasToken('literal')) {
-          result += this.get().value;
-        } else if (this.skipWhitespace()) {
-          result += ' ';
-        } else if (this.hasToken('command')) {
-          var token = this.get();
-
-          if (token.value === 'space') {
-            // The 'space' command is the ~
-            // which can be used for example in operator names, i.e.
-            // \operatorname{lim~inf}. It's interpreted as a nbs
-            result += "\xA0"; // NO-BREAK SPACE
-          } else {
-            // TeX will give a 'Missing \endcsname inserted' error
-            // if it encounters any command when expecting a string.
-            // We're a bit more lax.
-            result += token.value;
-          }
-        } else {
-          done = true;
-        }
-
-        done = done || this.end();
-      }
-
-      return result;
-    }
-    /**
-     * Return a CSS color (#rrggbb)
-     * @method module:core/parser#Parser#scanColor
-     * @private
-     */
-
-  }, {
-    key: "scanColor",
-    value: function scanColor() {
-      return _color.default.stringToColor(this.scanString());
-    }
-    /**
-     * Return as a number a group of characters representing a
-     * numerical quantity.
-     *
-     * From TeX:8695 (scan_int):
-     * An integer number can be preceded by any number of spaces and `\.+' or
-     * `\.-' signs. Then comes either a decimal constant (i.e., radix 10), an
-     * octal constant (i.e., radix 8, preceded by~\.\'), a hexadecimal constant
-     * (radix 16, preceded by~\."), an alphabetic constant (preceded by~\.\`), or
-     * an internal variable.
-     * @return {number}
-     * @method Parser#scanNumber
-     * @private
-     */
-
-  }, {
-    key: "scanNumber",
-    value: function scanNumber(isInteger) {
-      var negative = this.parseLiteral('-'); // Optional (ignorable) '+' sign
-
-      if (!negative) this.parseLiteral('+');
-      this.skipWhitespace();
-      isInteger = !!isInteger;
-      var radix = 10;
-      var digits = /[0-9]/;
-
-      if (this.parseLiteral("'")) {
-        // Apostrophe indicates an octal value
-        radix = 8;
-        digits = /[0-7]/;
-        isInteger = true;
-      } else if (this.parseLiteral('"') || this.parseLiteral('x')) {
-        // Double-quote indicates a hex value
-        // The 'x' prefix notation for the hexadecimal numbers is a MathJax extension.
-        // For example: 'x3a'
-        radix = 16; // Hex digits have to be upper-case
-
-        digits = /[0-9A-F]/;
-        isInteger = true;
-      }
-
-      var value = '';
-
-      while (this.hasLiteralPattern(digits)) {
-        value += this.get().value;
-      } // Parse the fractional part, if applicable
-
-
-      if (!isInteger && (this.parseLiteral('.') || this.parseLiteral(','))) {
-        value += '.';
-
-        while (this.hasLiteralPattern(digits)) {
-          value += this.get().value;
-        }
-      }
-
-      var result = isInteger ? parseInt(value, radix) : parseFloat(value);
-      return negative ? -result : result;
-    }
-    /**
-     * Return as a floating point number a dimension in pt (1 em = 10 pt)
-     *
-     * See TeX:8831
-     * @todo: note that some units depend on the font (em, ex). So it might be
-     * better to return a dimen struct with the value + unit and resolve
-     * later when we have a font context....
-     * @return {number}
-     * @method module:core/parser#Parser#scanDimen
-     * @private
-     */
-
-  }, {
-    key: "scanDimen",
-    value: function scanDimen() {
-      var value = this.scanNumber(false);
-      this.skipWhitespace();
-      var result;
-
-      if (this.parseKeyword('pt')) {
-        result = _fontMetrics.default.toEm(value, 'pt');
-      } else if (this.parseKeyword('mm')) {
-        result = _fontMetrics.default.toEm(value, 'mm');
-      } else if (this.parseKeyword('cm')) {
-        result = _fontMetrics.default.toEm(value, 'cm');
-      } else if (this.parseKeyword('ex')) {
-        result = _fontMetrics.default.toEm(value, 'ex');
-      } else if (this.parseKeyword('px')) {
-        result = _fontMetrics.default.toEm(value, 'px');
-      } else if (this.parseKeyword('em')) {
-        result = _fontMetrics.default.toEm(value, 'em');
-      } else if (this.parseKeyword('bp')) {
-        result = _fontMetrics.default.toEm(value, 'bp');
-      } else if (this.parseKeyword('dd')) {
-        result = _fontMetrics.default.toEm(value, 'dd');
-      } else if (this.parseKeyword('pc')) {
-        result = _fontMetrics.default.toEm(value, 'pc');
-      } else if (this.parseKeyword('in')) {
-        result = _fontMetrics.default.toEm(value, 'in');
-      } else if (this.parseKeyword('mu')) {
-        result = _fontMetrics.default.toEm(value, 'mu');
-      } else {
-        // If the units are missing, TeX assumes 'pt'
-        result = _fontMetrics.default.toEm(value, 'pt');
-      }
-
-      return result;
-    }
-  }, {
-    key: "scanSkip",
-    value: function scanSkip() {
-      var result = this.scanDimen(); // We parse, but ignore the optional 'plus' and 'minus'
-      // arguments.
-
-      this.skipWhitespace(); // 'plus', optionally followed by 'minus'
-      // ('minus' cannot come before 'plus')
-      // dimen or 'hfill'
-
-      if (this.parseKeyword('plus')) {
-        // @todo there could also be a \hFilLlL command here
-        this.scanDimen();
-      }
-
-      this.skipWhitespace();
-
-      if (this.parseKeyword('minus')) {
-        // @todo there could also be a \hFilLlL command here
-        this.scanDimen();
-      }
-
-      return result;
-    }
-  }, {
-    key: "scanColspec",
-    value: function scanColspec() {
-      this.skipWhitespace();
-      var result = [];
-
-      while (!this.end() && !(this.hasToken('}') || this.hasLiteral(']'))) {
-        if (this.hasLiteral()) {
-          var literal = this.get().value;
-
-          if ('lcr'.includes(literal)) {
-            result.push({
-              align: literal
-            });
-          } else if (literal === '|') {
-            result.push({
-              rule: true
-            });
-          } else if (literal === '@') {
-            if (this.parseToken('{')) {
-              var savedParsemode = this.swapParseMode('math');
-              result.push({
-                gap: this.scanImplicitGroup(function (token) {
-                  return token.type === '}';
-                })
-              });
-              this.swapParseMode(savedParsemode);
-            }
-
-            this.parseToken('}');
-          }
-        }
-      }
-
-      return result;
-    }
-    /**
-     * Parse a `\(...\)` or `\[...\]` sequence
-     * @return {MathAtom} group for the sequence or null
-     * @method module:core/parser#Parser#scanModeSet
-     * @private
-     */
-
-  }, {
-    key: "scanModeSet",
-    value: function scanModeSet() {
-      var final;
-      if (this.parseCommand('(')) final = ')';
-      if (!final && this.parseCommand('[')) final = ']';
-      if (!final) return null;
-      var savedParsemode = this.swapParseMode('math');
-      var result = new MathAtom('math', 'group');
-      result.mathstyle = final === ')' ? 'textstyle' : 'displaystyle';
-      result.body = this.scanImplicitGroup(function (token) {
-        return token.type === 'command' && token.value === final;
-      });
-      this.parseCommand(final);
-      this.swapParseMode(savedParsemode);
-      if (!result.body || result.body.length === 0) return null;
-      return result;
-    }
-    /**
-     * Parse a `$...$` or `$$...$$` sequence
-     * @method Parser#scanModeShift
-     * @private
-     */
-
-  }, {
-    key: "scanModeShift",
-    value: function scanModeShift() {
-      if (!this.hasToken('$') && !this.hasToken('$$')) return null;
-      var final = this.get().type;
-      var result = new MathAtom('math', 'group');
-      result.mathstyle = final === '$' ? 'textstyle' : 'displaystyle';
-      result.latexOpen = result.mathstyle === 'textstyle' ? '$' : '$$';
-      result.latexClose = result.latexOpen;
-      var savedParsemode = this.swapParseMode('math');
-      result.body = this.scanImplicitGroup(function (token) {
-        return token.type === final;
-      });
-      this.parseToken(final);
-      this.swapParseMode(savedParsemode);
-      if (!result.body || result.body.length === 0) return null;
-      return result;
-    }
-    /**
-     * Parse a \begin{env}...\end{end} sequence
-     * @method module:core/parser#Parser#scanEnvironment
-     * @private
-     */
-
-  }, {
-    key: "scanEnvironment",
-    value: function scanEnvironment() {
-      // An environment starts with a \begin command
-      if (!this.parseCommand('begin')) return null; // The \begin command is immediately followed by the environment
-      // name, as a string argument
-
-      var envName = this.scanArg('string');
-
-      var env = _definitions.default.getEnvironmentInfo(envName); // If the environment has some arguments, parse them
-
-
-      var args = [];
-
-      if (env && env.params) {
-        var _iteratorNormalCompletion = true;
-        var _didIteratorError = false;
-        var _iteratorError = undefined;
-
-        try {
-          for (var _iterator = env.params[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-            var param = _step.value;
-
-            // Parse an argument
-            if (param.optional) {
-              // If it's not present, return the default argument value
-              var arg = this.scanOptionalArg(param.type); // args.push(arg ? arg : param.defaultValue); @todo defaultvalue
-
-              args.push(arg);
-            } else {
-              // If it's not present, scanArg returns null,
-              // but push it on the list of arguments anyway.
-              // The null value will be interpreted as unspecified
-              // optional value by the command parse function.
-              args.push(this.scanArg(param.type));
-            }
-          }
-        } catch (err) {
-          _didIteratorError = true;
-          _iteratorError = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion && _iterator.return != null) {
-              _iterator.return();
-            }
-          } finally {
-            if (_didIteratorError) {
-              throw _iteratorError;
-            }
-          }
-        }
-      } // Some environments change the mode
-
-
-      var savedMode = this.parseMode;
-      var savedTabularMode = this.tabularMode;
-      var savedMathList = this.swapMathList([]); // @todo: since calling scanImplicitGroup(), may not need to save/restore the mathlist
-
-      this.tabularMode = env.tabular;
-      var array = [];
-      var rowGaps = [];
-      var row = [];
-      var done = false;
-
-      do {
-        done = this.end();
-
-        if (!done && this.parseCommand('end')) {
-          done = this.scanArg('string') === envName;
-        }
-
-        if (!done) {
-          if (this.parseColumnSeparator()) {
-            row.push(this.swapMathList([]));
-          } else if (this.parseRowSeparator()) {
-            row.push(this.swapMathList([]));
-            var gap = 0;
-            this.skipWhitespace();
-
-            if (this.parseLiteral('[')) {
-              gap = this.scanDimen();
-              this.skipWhitespace();
-              this.parseLiteral(']');
-            }
-
-            rowGaps.push(gap || 0);
-            array.push(row);
-            row = [];
-          } else {
-            this.mathList = this.mathList.concat(this.scanImplicitGroup());
-          }
-        }
-      } while (!done);
-
-      row.push(this.swapMathList([]));
-      if (row.length > 0) array.push(row);
-      var newMathList = this.swapMathList(savedMathList); // If we're in tabular mode, we should end up with an empty mathlist
-
-      console.assert(!this.tabularMode || newMathList.length === 0, 'Leftover atoms in tabular mode');
-      this.parseMode = savedMode;
-      this.tabularMode = savedTabularMode;
-      if (!env.tabular && newMathList.length === 0) return null;
-      if (env.tabular && array.length === 0) return null;
-      var result = new MathAtom(this.parseMode, 'array', newMathList, env.parser ? env.parser(envName, args, array) : {});
-      result.array = array;
-      result.rowGaps = rowGaps;
-      result.env = _objectSpread({}, env);
-      result.env.name = envName;
-      return result;
-    }
-    /**
-     * Parse a sequence terminated with a group end marker, such as
-     * `}`, `\end`, `&`, etc...
-     * 
-     * Returns an array of atoms or an empty array if the sequence
-     * terminates right away.
-     * 
-     * @param {function(Token):boolean} [done] A predicate indicating if a 
-     * token signals the end of an implicit group
-     * @return {MathAtom[]}
-     * @method module:core/parser#Parser#scanImplicitGroup
-     * @private
-     */
-
-  }, {
-    key: "scanImplicitGroup",
-    value: function scanImplicitGroup(done) {
-      // An implicit group is a sequence of atoms that terminates with
-      // a `'}'`, `'&'`, `'\'`, `'\cr'` or `'\end'` or the end of the stream
-      var savedStyle = this.style;
-
-      if (!done) {
-        done = function done(token) {
-          return token.type === '}' || token.type === 'literal' && token.value === '&' || token.type === 'command' && /^(end|cr|\\)$/.test(token.value);
-        };
-      } // To handle infix operators, we'll keep track of their prefix
-      // (tokens coming before them)
-
-
-      var infix = null; // A token
-
-      var prefix = null; // A mathlist
-
-      var savedMathlist = this.swapMathList([]); // if (this.index >= this.tokens.length) return true;
-      // const token = this.tokens[this.index];
-
-      while (!this.end() && !done(this.peek())) {
-        if (this.hasImplicitCommand(['displaystyle', 'textstyle', 'scriptstyle', 'scriptscriptstyle'])) {
-          // Implicit math style commands such as \displaystyle, \textstyle...
-          // Note these commands switch to math mode and a specific size
-          // \textsize is the mathstyle used for inlinemath, not for text
-          this.parseMode = 'math';
-          var atom = new MathAtom('math', 'mathstyle');
-          atom.mathstyle = this.get().value;
-          this.mathList.push(atom);
-        } else if (this.hasInfixCommand() && !infix) {
-          // The next token is an infix and we have not seen one yet
-          // (there can be only one infix command per implicit group).
-          infix = this.get(); // Save the math list so far and start a new one
-
-          prefix = this.swapMathList([]);
-        } else {
-          this.parseAtom();
-        }
-      }
-
-      var result;
-
-      if (infix) {
-        var suffix = this.swapMathList(savedMathlist); // The current parseMode, this.parseMode, may no longer have the value
-        // it had when we encountered the infix. However, since all infix are
-        // only defined in 'math' mode, we can use the 'math' constant
-        // for the parseMode
-
-        var info = _definitions.default.getInfo('\\' + infix.value, 'math', this.macros);
-
-        if (info) {
-          result = [new MathAtom(this.parseMode, info.type, info.value || infix.value, // Functions don't have
-          info.parse ? info.parse('\\' + infix.value, [prefix, suffix]) : null)];
-        } else {
-          result = [new MathAtom(this.parseMode, 'mop', infix.value)];
-        }
-      } else {
-        result = this.swapMathList(savedMathlist);
-      }
-
-      this.style = savedStyle;
-      return result;
-    }
-    /**
-     * Parse a group enclosed in a pair of braces: `{...}`.
-     *
-     * Return either a group MathAtom or null if not a group.
-     *
-     * Return a group MathAtom with an empty body if an empty
-     * group (i.e. `{}`).
-     * @return {MathAtom}
-     * @method module:core/parser#Parser#scanGroup
-     * @private
-     */
-
-  }, {
-    key: "scanGroup",
-    value: function scanGroup() {
-      if (!this.parseToken('{')) return null;
-      var result = new MathAtom(this.parseMode, 'group');
-      result.body = this.scanImplicitGroup(function (token) {
-        return token.type === '}';
-      });
-      this.parseToken('}');
-      result.latexOpen = '{';
-      result.latexClose = '}';
-      return result;
-    }
-  }, {
-    key: "scanSmartFence",
-    value: function scanSmartFence() {
-      this.skipWhitespace();
-      if (!this.parseLiteral('(')) return null; // We've found an open paren... Convert to a `\mleft...\mright`
-
-      var result = new MathAtom(this.parseMode, 'leftright');
-      result.leftDelim = '(';
-      result.inner = false; // It's a `\mleft`, not a `\left`
-
-      var savedMathList = this.swapMathList([]);
-      var nestLevel = 1;
-
-      while (!this.end() && nestLevel !== 0) {
-        if (this.hasLiteral('(')) nestLevel += 1;
-        if (this.hasLiteral(')')) nestLevel -= 1;
-        if (nestLevel !== 0) this.parseAtom();
-      }
-
-      if (nestLevel === 0) this.parseLiteral(')');
-      result.rightDelim = nestLevel === 0 ? ')' : '?';
-      result.body = this.swapMathList(savedMathList);
-      return result;
-    }
-    /**
-     * Scan a delimiter, e.g. '(', '|', '\vert', '\ulcorner'
-     *
-     * @return {string} The delimiter (as a character or command) or null
-     * @memberof Parser
-     * @method module:core/parser#Parser#scanDelim
-     * @private
-     */
-
-  }, {
-    key: "scanDelim",
-    value: function scanDelim() {
-      this.skipWhitespace();
-      var token = this.get();
-      if (!token) return null;
-      var delim = '.';
-
-      if (token.type === 'command') {
-        delim = '\\' + token.value;
-      } else if (token.type === 'literal') {
-        delim = token.value;
-      }
-
-      var info = _definitions.default.getInfo(delim, 'math', this.macros);
-
-      if (!info) return null;
-
-      if (info.type === 'mopen' || info.type === 'mclose') {
-        return delim;
-      } // Some symbols are not of type mopen/mclose, but are still
-      // valid delimiters...
-      // '?' is a special delimiter used as a 'placeholder'
-      // (when the closing delimiter is displayed greyed out)
-
-
-      if (/^(\?|\||<|>|\\vert|\\Vert|\\\||\\surd|\\uparrow|\\downarrow|\\Uparrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\mid|\\mvert|\\mVert)$/.test(delim)) {
-        return delim;
-      }
-
-      return null;
-    }
-    /**
-     * Parse a `/left.../right` sequence.
-     *
-     * Note: the `/middle` command can occur multiple times inside a
-     * `/left.../right` sequence, and is handled separately.
-     *
-     * Return either an atom of type `'leftright'` or null
-     * @return {MathAtom}
-     * @method module:core/parser#Parser#scanLeftRight
-     * @private
-     */
-
-  }, {
-    key: "scanLeftRight",
-    value: function scanLeftRight() {
-      if (this.parseCommand('right') || this.parseCommand('mright')) {
-        // We have an unbalanced left/right (there's a \right, but no \left)
-        var _result = new MathAtom(this.parseMode, 'leftright');
-
-        _result.rightDelim = this.scanDelim() || '.';
-        return _result;
-      }
-
-      var savedStyle = this.style;
-      var close = 'right';
-
-      if (!this.parseCommand('left')) {
-        if (!this.parseCommand('mleft')) return null;
-        close = 'mright';
-      }
-
-      var leftDelim = this.scanDelim() || '.';
-      var savedMathList = this.swapMathList([]);
-
-      while (!this.end() && !this.parseCommand(close)) {
-        this.parseAtom();
-      }
-
-      this.style = savedStyle; // If we've reached the end and there was no `\right` or
-      // there isn't a valid delimiter after `\right`, we'll
-      // consider the `\right` missing and set the `rightDelim` to undefined
-
-      var rightDelim = this.scanDelim();
-      var result = new MathAtom(this.parseMode, 'leftright');
-      result.leftDelim = leftDelim;
-      result.rightDelim = rightDelim;
-      result.inner = close === 'right';
-      result.body = this.swapMathList(savedMathList);
-      return result;
-    }
-    /**
-     * Parse a subscript/superscript: `^` and `_`.
-     *
-     * Modify the last atom accordingly.
-     *
-     * @return {MathAtom}
-     * @method module:core/parser#Parser#parseSupSub
-     * @private
-     */
-
-  }, {
-    key: "parseSupSub",
-    value: function parseSupSub() {
-      // No sup/sub in text or command mode.
-      if (this.parseMode !== 'math') return false; // Apply the subscript/superscript to the last render atom.
-      // If none is present (beginning of the mathlist, i.e. `{^2}`,
-      // an empty atom will be created, equivalent to `{{}^2}`
-
-      var result = false;
-
-      while (this.hasLiteral('^') || this.hasLiteral('_') || this.hasLiteral("'")) {
-        var supsub = void 0;
-
-        if (this.hasLiteral('^')) {
-          supsub = 'superscript';
-        } else if (this.hasLiteral('_')) {
-          supsub = 'subscript';
-        }
-
-        if (this.parseLiteral('^') || this.parseLiteral('_')) {
-          var arg = this.scanArg();
-
-          if (arg) {
-            var atom = this.lastMathAtom();
-            atom[supsub] = atom[supsub] || [];
-            atom[supsub] = atom[supsub].concat(arg);
-            result = true;
-          }
-        } else if (this.parseLiteral("'")) {
-          // A single quote (prime) is actually equivalent to a
-          // '^{\prime}'
-          var _atom = this.lastMathAtom();
-
-          _atom.superscript = _atom.superscript || [];
-
-          _atom.superscript.push(new MathAtom(_atom.parseMode, 'mord', "\u2032"));
-
-          result = true;
-        }
-      }
-
-      return result;
-    }
-    /**
-     * Parse a `\limits` or `\nolimits` command.
-     *
-     * This will change the placement of limits to be either above or below
-     * (if `\limits`) or in the superscript/subscript position (if `\nolimits`).
-     *
-     * This overrides the calculation made for the placement, which is usually
-     * dependent on the displaystyle (`inlinemath` prefers `\nolimits`, while
-     * `displaymath` prefers `\limits`).
-     * @method module:core/parser#Parser#parseLimits
-     * @private
-     */
-
-  }, {
-    key: "parseLimits",
-    value: function parseLimits() {
-      // Note: technically, \limits and \nolimits are only applicable
-      // after an operator. However, we apply them in all cases. They
-      // will simply be ignored when not applicable (i.e. on a literal)
-      // which is actually consistent with TeX.
-      if (this.parseCommand('limits')) {
-        var lastAtom = this.lastMathAtom();
-        lastAtom.limits = 'limits'; // Record that the limits was set through an explicit command
-        // so we can generate the appropriate LaTeX later
-
-        lastAtom.explicitLimits = true;
-        return true;
-      }
-
-      if (this.parseCommand('nolimits')) {
-        var _lastAtom = this.lastMathAtom();
-
-        _lastAtom.limits = 'nolimits'; // Record that the limits was set through an explicit command
-        // so we can generate the appropriate LaTeX later
-
-        _lastAtom.explicitLimits = true;
-        return true;
-      }
-
-      return false;
-    }
-  }, {
-    key: "scanOptionalArg",
-    value: function scanOptionalArg(parseMode) {
-      parseMode = !parseMode || parseMode === 'auto' ? this.parseMode : parseMode;
-      this.skipWhitespace();
-      if (!this.parseLiteral('[')) return null;
-      var savedParseMode = this.parseMode;
-      this.parseMode = parseMode;
-      var savedMathlist = this.swapMathList();
-      var result;
-
-      while (!this.end() && !this.parseLiteral(']')) {
-        if (parseMode === 'string') {
-          result = this.scanString();
-        } else if (parseMode === 'number') {
-          result = this.scanNumber();
-        } else if (parseMode === 'dimen') {
-          result = this.scanDimen();
-        } else if (parseMode === 'skip') {
-          result = this.scanSkip();
-        } else if (parseMode === 'colspec') {
-          result = this.scanColspec();
-        } else if (parseMode === 'color') {
-          result = this.scanColor() || '#ffffff';
-        } else if (parseMode === 'bbox') {
-          // The \bbox command takes a very particular argument:
-          // a comma delimited list of up to three arguments:
-          // a color, a dimension and a string.
-          // Split the string by comma delimited sub-strings, ignoring commas
-          // that may be inside (). For example"x, rgb(a, b, c)" would return
-          // ['x', 'rgb(a, b, c)']
-          var list = this.scanString().toLowerCase().trim().split(/,(?![^(]*\)(?:(?:[^(]*\)){2})*[^"]*$)/);
-          var _iteratorNormalCompletion2 = true;
-          var _didIteratorError2 = false;
-          var _iteratorError2 = undefined;
-
-          try {
-            for (var _iterator2 = list[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-              var elem = _step2.value;
-
-              var color = _color.default.stringToColor(elem);
-
-              if (color) {
-                result = result || {};
-                result.backgroundcolor = color;
-              } else {
-                var m = elem.match(/^\s*([0-9.]+)\s*([a-z][a-z])/);
-
-                if (m) {
-                  result = result || {};
-                  result.padding = _fontMetrics.default.toEm(m[1], m[2]);
-                } else {
-                  var _m = elem.match(/^\s*border\s*:\s*(.*)/);
-
-                  if (_m) {
-                    result = result || {};
-                    result.border = _m[1];
-                  }
-                }
-              }
-            }
-          } catch (err) {
-            _didIteratorError2 = true;
-            _iteratorError2 = err;
-          } finally {
-            try {
-              if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-                _iterator2.return();
-              }
-            } finally {
-              if (_didIteratorError2) {
-                throw _iteratorError2;
-              }
-            }
-          }
-        } else {
-          console.assert(parseMode === 'math', 'Unexpected parse mode: "' + parseMode + '"');
-          this.mathList = this.mathList.concat(this.scanImplicitGroup(function (token) {
-            return token.type === 'literal' && token.value === ']';
-          }));
-        }
-      }
-
-      this.parseMode = savedParseMode;
-      var mathList = this.swapMathList(savedMathlist);
-      return result ? result : mathList;
-    }
-    /**
-     * Parse a math field, an argument to a function.
-     *
-     * An argument can either be a single atom or
-     * a sequence of atoms enclosed in braces.
-     *
-     * @param {string} [parseMode] Temporarily overrides the parser parsemode. For
-     * example: `'dimension'`, `'color'`, `'text'`, etc...
-     * @method module:core/parser#Parser#scanArg
-     * @private
-     */
-
-  }, {
-    key: "scanArg",
-    value: function scanArg(parseMode) {
-      parseMode = !parseMode || parseMode === 'auto' ? this.parseMode : parseMode;
-      this.parseFiller();
-      var result; // An argument (which is called a 'math field' in TeX)
-      // could be a single character or symbol, as in `\frac12`
-      // Note that ``\frac\sqrt{-1}\alpha\beta`` is equivalent to
-      // ``\frac{\sqrt}{-1}{\beta}``
-
-      if (!this.parseToken('{')) {
-        if (parseMode === 'delim') {
-          return this.scanDelim() || '.';
-        } else if (/^(math|text)$/.test(parseMode)) {
-          // Parse a single atom.
-          var _savedParseMode = this.parseMode;
-          this.parseMode = parseMode;
-          var atom = this.scanToken();
-          this.parseMode = _savedParseMode;
-          if (Array.isArray(atom)) return atom;
-          return atom ? [atom] : null;
-        }
-      } // If this is a param token, substitute it with the
-      // (optional) argument passed to the parser
-
-
-      if (this.hasToken('#')) {
-        var paramToken = this.get();
-        this.skipUntilToken('}');
-
-        if (paramToken.value === '?') {
-          return this.placeholder();
-        }
-
-        if (this.args) {
-          if (this.args[paramToken.value] === undefined && this.args['?'] !== undefined) {
-            return this.placeholder();
-          }
-
-          return this.args[paramToken.value] || null;
-        }
-
-        return null;
-      }
-
-      var savedParseMode = this.parseMode;
-      this.parseMode = parseMode;
-      var savedMathList = this.swapMathList([]);
-
-      if (parseMode === 'string') {
-        result = this.scanString();
-        this.skipUntilToken('}');
-      } else if (parseMode === 'number') {
-        result = this.scanNumber();
-        this.skipUntilToken('}');
-      } else if (parseMode === 'dimen') {
-        result = this.scanDimen();
-        this.skipUntilToken('}');
-      } else if (parseMode === 'skip') {
-        result = this.scanSkip();
-        this.skipUntilToken('}');
-      } else if (parseMode === 'colspec') {
-        result = this.scanColspec();
-        this.skipUntilToken('}');
-      } else if (parseMode === 'color') {
-        result = this.scanColor() || '#ffffff';
-        this.skipUntilToken('}');
-      } else if (parseMode === 'delim') {
-        result = this.scanDelim() || '.';
-        this.skipUntilToken('}');
-      } else {
-        console.assert(/^(math|text)$/.test(parseMode), 'Unexpected parse mode: "' + parseMode + '"');
-
-        do {
-          this.mathList = this.mathList.concat(this.scanImplicitGroup());
-        } while (!this.parseToken('}') && !this.end());
-      }
-
-      this.parseMode = savedParseMode;
-      var mathList = this.swapMathList(savedMathList);
-      return result ? result : mathList;
-    }
-    /**
-     * @return {MathAtom[]|MathAtom}
-     * @method module:core/parser#Parser#scanToken
-     * @private
-     */
-
-  }, {
-    key: "scanToken",
-    value: function scanToken() {
-      var token = this.get();
-      if (!token) return null;
-      var result = null;
-
-      if (token.type === 'space') {
-        if (this.parseMode === 'text') {
-          result = new MathAtom('text', '', ' ', this.style);
-        }
-      } else if (token.type === 'placeholder') {
-        // RENDER PLACEHOLDER
-        result = new MathAtom(this.parseMode, 'placeholder', token.value);
-        result.captureSelection = true;
-      } else if (token.type === 'command') {
-        // RENDER COMMAND
-        if (token.value === 'placeholder') {
-          result = new MathAtom(this.parseMode, 'placeholder', this.scanArg('string'), this.style);
-          result.captureSelection = true;
-        } else if (token.value === 'char') {
-          // \char has a special syntax and requires a non-braced integer
-          // argument
-          var codepoint = Math.floor(this.scanNumber(true));
-
-          if (!isFinite(codepoint) || codepoint < 0 || codepoint > 0x10FFFF) {
-            codepoint = 0x2753; // BLACK QUESTION MARK
-          }
-
-          result = new MathAtom(this.parseMode, this.parseMode === 'math' ? 'mord' : '', String.fromCodePoint(codepoint));
-          result.latex = '{\\char"' + ('000000' + codepoint.toString(16)).toUpperCase().substr(-6) + '}';
-        } else if (token.value === 'hskip' || token.value === 'kern') {
-          // \hskip and \kern have a special syntax and requires a non-braced
-          // 'skip' argument
-          var width = this.scanSkip();
-
-          if (isFinite(width)) {
-            result = new MathAtom(this.parseMode, 'spacing', null, this.style);
-            result.width = width;
-          }
-
-          result.latex = '\\' + token.value;
-        } else {
-          result = this.scanMacro(token.value);
-
-          if (!result) {
-            var info = _definitions.default.getInfo('\\' + token.value, this.parseMode, this.macros);
-
-            var args = [];
-            var argString = ''; // Parse the arguments
-            // let mandatoryParamsCount = 0;
-            // If explicitGroup is not empty, an explicit group is expected 
-            // to follow the command and will be parsed *after* the 
-            // command has been processed.
-            // This is used for commands such as \textcolor{color}{content}
-            // that need to apply the color to the content *after* the 
-            // style has been changed.
-            // In definitions, this is indicated with a parameter type 
-            // of 'auto*'
-
-            var explicitGroup = '';
-
-            if (info && info.params) {
-              var _iteratorNormalCompletion3 = true;
-              var _didIteratorError3 = false;
-              var _iteratorError3 = undefined;
-
-              try {
-                for (var _iterator3 = info.params[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-                  var param = _step3.value;
-
-                  // Parse an argument
-                  if (param.optional) {
-                    // If it's not present, return the default argument value
-                    var arg = this.scanOptionalArg(param.type); // args.push(arg ? arg : param.defaultValue); @todo defaultvalue
-
-                    args.push(arg);
-                  } else if (param.type.endsWith('*')) {
-                    explicitGroup = param.type.slice(0, -1);
-                  } else {
-                    // mandatoryParamsCount += 1;
-                    // If it's not present, scanArg returns null.
-                    // Add a placeholder instead.
-                    var _arg = this.scanArg(param.type);
-
-                    if (_arg && _arg.length === 1 && _arg[0].type === 'placeholder' && param.placeholder) {
-                      _arg[0].value = param.placeholder;
-                    }
-
-                    if (_arg) {
-                      args.push(_arg);
-                    } else if (param.placeholder) {
-                      var placeholder = new MathAtom(this.parseMode, 'placeholder', param.placeholder);
-                      placeholder.captureSelection = true;
-                      args.push([placeholder]);
-                    } else {
-                      args.push(this.placeholder());
-                    }
-
-                    if (param.type !== 'math' && typeof _arg === 'string') {
-                      argString += _arg;
-                    }
-                  }
-                }
-              } catch (err) {
-                _didIteratorError3 = true;
-                _iteratorError3 = err;
-              } finally {
-                try {
-                  if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
-                    _iterator3.return();
-                  }
-                } finally {
-                  if (_didIteratorError3) {
-                    throw _iteratorError3;
-                  }
-                }
-              }
-            }
-
-            if (info && !info.infix) {
-              // Infix commands should be handled in scanImplicitGroup
-              // If we find an infix command here, it's a syntax error
-              // (second infix command in an implicit group) and should be ignored.
-              // Create the MathAtom.
-              // If a parse function is present, invoke it with the arguments,
-              // and pass the result to be appended by the constructor.
-              if (info.parse) {
-                var attributes = info.parse('\\' + token.value, args);
-
-                if (!attributes.type) {
-                  // No type provided -> the parse function will modify
-                  // the current style rather than create a new Atom.
-                  var savedMode = this.parseMode;
-
-                  if (attributes.mode) {
-                    // Change to 'text' (or 'math') mode if necessary
-                    this.parseMode = attributes.mode;
-                    delete attributes.mode;
-                  } // If an explicit group is expected, process it now
-
-
-                  if (explicitGroup) {
-                    // Create a temporary style
-                    var saveStyle = this.style;
-                    this.style = _objectSpread({}, this.style, attributes);
-                    result = this.scanArg(explicitGroup);
-                    this.style = saveStyle;
-                  } else {
-                    // Merge the new style info with the current style
-                    this.style = _objectSpread({}, this.style, attributes);
-                  }
-
-                  this.parseMode = savedMode;
-                } else {
-                  result = new MathAtom(this.parseMode, info.type, explicitGroup ? this.scanArg(explicitGroup) : null, _objectSpread({}, this.style, attributes));
-                }
-              } else {
-                var style = _objectSpread({}, this.style);
-
-                if (info.baseFontFamily) style.baseFontFamily = info.baseFontFamily;
-                result = new MathAtom(this.parseMode, info.type || 'mop', info.value || token.value, style);
-
-                if (info.skipBoundary) {
-                  result.skipBoundary = true;
-                }
-              }
-
-              if (result && !/^(llap|rlap|class|cssId)$/.test(token.value)) {
-                result.latex = '\\' + token.value;
-
-                if (argString
-                /*|| mandatoryParamsCount > 0*/
-                ) {
-                    result.latex += '{' + argString + '}';
-                  }
-
-                if (result.isFunction && this.smartFence) {
-                  // The atom was a function that may be followed by
-                  // an argument, like `\sin(`
-                  var smartFence = this.scanSmartFence();
-
-                  if (smartFence) {
-                    result = [result, smartFence];
-                  }
-                }
-              }
-            }
-
-            if (!info) {
-              // An unknown command
-              result = new MathAtom(this.parseMode, 'error', '\\' + token.value);
-              result.latex = '\\' + token.value;
-            }
-          }
-        }
-      } else if (token.type === 'literal') {
-        var _info = _definitions.default.getInfo(token.value, this.parseMode, this.macros);
-
-        if (_info) {
-          var _style = _objectSpread({}, this.style);
-
-          if (_info.baseFontFamily) _style.baseFontFamily = _info.baseFontFamily;
-          result = new MathAtom(this.parseMode, _info.type, _info.value || token.value, _style);
-
-          if (_info.isFunction) {
-            result.isFunction = true;
-          }
-        } else {
-          result = new MathAtom(this.parseMode, this.parseMode === 'math' ? 'mord' : '', token.value, this.style);
-        }
-
-        result.latex = _definitions.default.matchCodepoint(this.parseMode, token.value.codePointAt(0));
-
-        if (_info && _info.isFunction && this.smartFence) {
-          // The atom was a function that may be followed by
-          // an argument, like `f(`.
-          var _smartFence = this.scanSmartFence();
-
-          if (_smartFence) {
-            result = [result, _smartFence];
-          }
-        }
-      } else if (token.type === '#') {
-        // Parameter token in an implicit group (not as a parameter)
-        if (token.value === '?') {
-          // '#?' indicates that a placeholder should be used
-          result = this.placeholder();
-        } else if (this.args) {
-          result = this.args[token.value] || null;
-
-          if (Array.isArray(result) && result.length === 1) {
-            result = result[0];
-          } else if (Array.isArray(result)) {
-            var group = new MathAtom(this.parseMode, 'group');
-            group.body = result;
-            result = group;
-          } else {
-            // If there is no argument value specified, use a placeholder
-            result = this.placeholder();
-          }
-        }
-      } else {
-        console.warn('Unexpected token type "' + token.type + '", value ="' + token.value + '"');
-      }
-
-      return result;
-    }
-    /**
-     * Attempt to scan the macro name and return an atom list if successful.
-     * Otherwise, it wasn't a macro.
-     */
-
-  }, {
-    key: "scanMacro",
-    value: function scanMacro(macro) {
-      if (!this.macros || !this.macros[macro]) return null;
-      var args = {};
-      var def;
-      var argCount = 0;
-
-      if (typeof this.macros[macro] === 'string') {
-        def = this.macros[macro]; // Let's see if there are arguments in the definition.
-
-        if (/(^|[^\\])#1/.test(def)) argCount = 1;
-        if (/(^|[^\\])#2/.test(def)) argCount = 2;
-        if (/(^|[^\\])#3/.test(def)) argCount = 3;
-        if (/(^|[^\\])#4/.test(def)) argCount = 4;
-        if (/(^|[^\\])#5/.test(def)) argCount = 5;
-        if (/(^|[^\\])#6/.test(def)) argCount = 6;
-        if (/(^|[^\\])#7/.test(def)) argCount = 7;
-        if (/(^|[^\\])#8/.test(def)) argCount = 8;
-        if (/(^|[^\\])#9/.test(def)) argCount = 9;
-      } else {
-        def = this.macros[macro].def;
-        argCount = this.macros[macro].args || 0;
-      }
-
-      for (var i = 1; i <= argCount; i++) {
-        args[i] = this.scanArg();
-      } // Carry forward the placeholder argument, if any.
-
-
-      if (this.args && typeof this.args['?'] === 'string') {
-        args['?'] = this.args['?'];
-      } // Group the result of the macro expansion, and set the
-      // captureSelection attribute so that it is handled as an unbreakable
-      // unit
-
-
-      var atom = new MathAtom(this.parseMode, 'group', parseTokens(_lexer.default.tokenize(def), this.parseMode, args, this.macros));
-      atom.captureSelection = true;
-      atom.latex = '\\' + macro;
-      var argString = '';
-
-      for (var _i = 1; _i <= argCount; _i++) {
-        argString += '{';
-
-        if (Array.isArray(args[_i])) {
-          for (var j = 0; j < args[_i].length; j++) {
-            argString += args[_i][j].latex;
-          }
-        }
-
-        argString += '}';
-      }
-
-      atom.latex += argString ? argString : '';
-      return atom;
-    }
-    /**
-     * Make a MathAtom for the current token or token group and
-     * add it to the parser's current mathList
-     * @method module:core/parser#Parser#parseAtom
-     * @private
-     */
-
-  }, {
-    key: "parseAtom",
-    value: function parseAtom() {
-      var result = this.scanEnvironment() || this.scanModeShift() || this.scanModeSet() || this.scanGroup() || this.scanLeftRight();
-      if (!result && (this.parseSupSub() || this.parseLimits())) return true;
-      if (!result) result = this.scanToken(); // If we have an atom to add, push it at the end of the current math list
-      // We could have no atom for tokens that were skipped, a ' ' in mathmode
-      // for example
-
-      if (Array.isArray(result)) {
-        this.mathList = this.mathList.concat(result);
-      } else if (result) {
-        this.mathList.push(result);
-      }
-
-      return result !== null;
-    }
-  }]);
-
-  return Parser;
-}();
-/**
- * Given an array of tokens returned by the lexer, return a corresponding
- * math list (array of atoms).
- * @param {object[]} tokens
- * @param {string} [parseMode='math']
- * @param {string[]} [args={}] - If there are any placeholder tokens, e.g.
- * `#0`, `#1`, etc... they will be replaced by the value provided by `args`.
- * @param {object} [macro={}] Dictionary defining macros
- * @param {boolean} [smartFence=false] If true, promote plain fences, e.g. `(`,
- * as `\left...\right` or `\mleft...\mright`
- * @return {object[]} An array of MathAtom
- * @method module:core/parser#parseTokens
- * @private
- */
-
-
-function parseTokens(tokens, parseMode, args, macros, smartFence) {
-  var mathlist = [];
-  var parser = new Parser(tokens, args, macros);
-  parser.parseMode = parseMode || 'math'; // other possible values: 'text', 'color', etc...
-
-  if (smartFence) parser.smartFence = true;
-
-  while (!parser.end()) {
-    mathlist = mathlist.concat(parser.scanImplicitGroup());
-  }
-
-  return mathlist;
-} // Export the public interface for this module
-
-
-var _default = {
-  Parser: Parser,
-  parseTokens: parseTokens
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/span.js b/dist/core/span.js
deleted file mode 100644
index 3f7018e69..000000000
--- a/dist/core/span.js
+++ /dev/null
@@ -1,1372 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.makeSpan = makeSpan;
-exports.makeOrd = makeOrd;
-exports.makeInner = makeInner;
-exports.makeHlist = makeHlist;
-exports.makeVlist = makeVlist;
-exports.default = exports.Span = void 0;
-
-var _fontMetrics = _interopRequireDefault(require("./fontMetrics.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-/**
- * Return a string made up of the concatenated arguments.
- * Each arguments can be either a string, which is unchanged,
- * or a number, which is converted to a string with at most 5 fractional digits.
- *
- * @param {(Array.<any>|string|number)} arg
- * @return {string}
- * @memberof module:core/span
- * @private
- */
-function toString(arg) {
-  var result = '';
-
-  if (typeof arg === 'number') {
-    result += Math.floor(1e2 * arg) / 1e2;
-  } else if (typeof arg === 'string') {
-    result += arg;
-  } else if (Array.isArray(arg)) {
-    var _iteratorNormalCompletion = true;
-    var _didIteratorError = false;
-    var _iteratorError = undefined;
-
-    try {
-      for (var _iterator = arg[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-        var elem = _step.value;
-        result += toString(elem);
-      }
-    } catch (err) {
-      _didIteratorError = true;
-      _iteratorError = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion && _iterator.return != null) {
-          _iterator.return();
-        }
-      } finally {
-        if (_didIteratorError) {
-          throw _iteratorError;
-        }
-      }
-    }
-  } else if (arg) {
-    result += arg.toString();
-  }
-
-  return result;
-} //----------------------------------------------------------------------------
-// SPAN
-//----------------------------------------------------------------------------
-
-/**
- * A span is the most elementary element that can be rendered.
- * It is composed of an optional body of text and an optional list
- * of children (other spans). Each span can be decorated with
- * CSS classes and style attributes.
- *
- * @param {string|Span|Span[]} content the items 'contained' by this node
- * @param {string} classes list of classes attributes associated with this node
- * @return {void}
- * @class
- * @memberof module:core/span
- * @property {string} type - For example, `'command'`, `'mrel'`, etc...
- * @property {string} classes - A string of space separated CSS classes
- * associated with this element
- * @property {string} cssID - A CSS ID assigned to this span (optional)
- * @property {Span[]} children - An array, potentially empty, of spans which
- * this span encloses
- * @property {string} body - Content of this span. Can be empty.
- * @property {Object.<string, any>} style - A set of key/value pairs specifying CSS properties
- * associated with this element.
- * @property {number} height - The measurement from baseline to top, in em.
- * @property {number} depth - The measurement from baseline to bottom, in em.
- * @private
- */
-
-
-var Span =
-/*#__PURE__*/
-function () {
-  function Span(content, classes) {
-    _classCallCheck(this, Span);
-
-    // CLASSES
-    this.classes = classes || ''; // CONTENT
-
-    if (Array.isArray(content)) {
-      // Check if isArray first, since an array is also an object
-      // Flatten it (i.e. [[a1, a2], b1, b2] -> [a1, a2, b1, b2]
-      this.children = [].concat.apply([], content);
-    } else if (typeof content === 'string') {
-      this.body = content;
-    } else if (content && _typeof(content) === 'object') {
-      this.children = [content];
-    } // STYLE
-    // CSS style, as an array of key value pairs.
-    // Use this.setStyle() to modify it.
-
-
-    this.style = null; // Calculate the dimensions of this span based on its children
-
-    this.updateDimensions();
-  }
-  /**
-   * Update the dimensions of this node based on its children:
-   * - height: distance from bottom to top
-   * - depth: distance from bottom to baseline
-   * - maxFontSize: a size multiplier (typically set with commands such as \huge)
-   * @method module:core/span.Span#updateDimensions
-   * @private
-   */
-
-
-  _createClass(Span, [{
-    key: "updateDimensions",
-    value: function updateDimensions() {
-      var height = 0.0;
-      var depth = 0.0;
-      var maxFontSize = 1.0;
-
-      if (this.children) {
-        this.children.forEach(function (x) {
-          if (x.height > height) height = x.height;
-          if (x.depth > depth) depth = x.depth;
-          if (x.maxFontSize > maxFontSize) maxFontSize = x.maxFontSize;
-        });
-      }
-
-      this.height = height;
-      this.depth = depth;
-      this.maxFontSize = maxFontSize;
-    }
-  }, {
-    key: "selected",
-    value: function selected(isSelected) {
-      if (isSelected && !/ML__selected/.test(this.classes)) {
-        if (this.classes.length > 0) this.classes += ' ';
-        this.classes += 'ML__selected';
-      }
-
-      if (!isSelected && /ML__selected/.test(this.classes)) {
-        this.classes = this.classes.replace('ML__selected', '');
-      }
-
-      if (this.children) {
-        this.children.forEach(function (x) {
-          return x.selected(isSelected);
-        });
-      }
-    }
-    /**
-     * @param {object} style A style specification with the following
-     * (all optionals) properties, which use the TeX terminology:
-     *
-     * - fontFamily: cmr, cmss, cmtt, cmsy (symbols), cmex (large symbols),
-     *  ptm (times), phv (helvetica), pcr (courier)
-     * - fontSeries: m (medium), b (bold), bx (bold extended), sb (semi-bold), c (condensed)
-     * - fontShape:          italic, oblique, "roman": n (normal, upright), it, sl, sc
-     * - fontSize: 'size1', 'size2'...
-     * - color:
-     * - background:
-     */
-
-  }, {
-    key: "applyStyle",
-    value: function applyStyle(style) {
-      if (!style) return;
-
-      if (style.color) {
-        if (style.color !== 'none') {
-          this.setStyle('color', style.color);
-        } else {
-          this.setStyle('color', '');
-        }
-      }
-
-      if (style.backgroundColor) {
-        if (style.backgroundColor !== 'none') {
-          this.setStyle('background-color', style.backgroundColor);
-        } else {
-          this.setStyle('background-color', '');
-        }
-      } //
-      // 1. Add any custom style classes
-      //
-
-
-      if (style.cssClass) {
-        this.classes += ' ' + style.cssClass;
-      } // If the body is null (for example for a line), we're done.
-
-
-      if (!this.body) return; // Determine the appropriate font (and font-related classes)
-      //
-      // 2. Determine the font family (i.e. 'amsrm', 'mathit', 'mathcal', etc...)
-      //
-
-      var fontFamily = style.fontFamily;
-
-      if (fontFamily === 'math' && style.fontShape === 'n') {
-        // 'math' is italic by default. If we need upright, switch to main.
-        fontFamily = 'cmr';
-      }
-
-      var fontName = 'Main-Regular'; // Default font
-
-      if (fontFamily) {
-        fontName = getFontName(this.body, fontFamily);
-      } //
-      // 3. Determine the classes necessary to represent the series and shape
-      //
-
-
-      if (style.fontShape) {
-        this.classes += ' ' + ({
-          'it': 'ML__it',
-          'sl': 'ML__shape_sl',
-          // slanted
-          'sc': 'ML__shape_sc',
-          // small caps
-          'ol': 'ML__shape_ol' // outline
-
-        }[style.fontShape] || '');
-      }
-
-      if (style.fontSeries) {
-        var m = style.fontSeries.match(/(.?[lbm])?(.?[cx])?/);
-
-        if (m) {
-          this.classes += ' ' + ({
-            'ul': 'ML__series_ul',
-            'el': 'ML__series_el',
-            'l': 'ML__series_l',
-            'sl': 'ML__series_sl',
-            'm': '',
-            // medium (default)
-            'sb': 'ML__series_sb',
-            'b': 'ML__bold',
-            'eb': 'ML__series_eb',
-            'ub': 'ML__series_ub'
-          }[m[1] || ''] || '');
-          this.classes += ' ' + ({
-            'uc': 'ML__series_uc',
-            'ec': 'ML__series_ec',
-            'c': 'ML__series_c',
-            'sc': 'ML__series_sc',
-            'n': '',
-            // normal (default)
-            'sx': 'ML__series_sx',
-            'x': 'ML__series_x',
-            'ex': 'ML__series_ex',
-            'ux': 'ML__series_ux'
-          }[m[2] || ''] || '');
-        }
-      }
-
-      if (FONT_CLASS[fontFamily]) {
-        this.classes += ' ' + FONT_CLASS[fontFamily];
-      } else if (fontFamily) {
-        // Not a well-known family. Use a style.
-        this.setStyle('font-family', fontFamily);
-      } //
-      // 3. Get the metrics information
-      //
-
-
-      if (this.body && this.body.length > 0 && fontName) {
-        this.height = 0.0;
-        this.depth = 0.0;
-        this.maxFontSize = {
-          size1: 0.5,
-          size2: 0.7,
-          size3: 0.8,
-          size4: 0.9,
-          size5: 1.0,
-          size6: 1.2,
-          size7: 1.44,
-          size8: 1.73,
-          size9: 2.07,
-          size10: 2.49
-        }[style.fontSize] || 1.0;
-        this.skew = 0.0;
-        this.italic = 0.0;
-
-        for (var i = 0; i < this.body.length; i++) {
-          var metrics = _fontMetrics.default.getCharacterMetrics(this.body.charAt(i), fontName); // If we were able to get metrics info for this character, store it.
-
-
-          if (metrics) {
-            this.height = Math.max(this.height, metrics.height);
-            this.depth = Math.max(this.depth, metrics.depth);
-            this.skew = metrics.skew;
-            this.italic = metrics.italic;
-          }
-        }
-      }
-    }
-    /**
-     * Set the value of a CSS property associated with this span.
-     * For example, setStyle('border-right', 5.6, 'em');
-     *
-     * @param {string} prop the CSS property to set
-     * @param {...(string|number)} value a series of strings and numbers that will be concatenated.
-     * @return {string}
-     * @method module:core/span.Span#setStyle
-     * @private
-     */
-
-  }, {
-    key: "setStyle",
-    value: function setStyle(prop) {
-      for (var _len = arguments.length, value = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-        value[_key - 1] = arguments[_key];
-      }
-
-      var v = toString(value);
-
-      if (v.length > 0) {
-        if (!this.style) this.style = {};
-        this.style[prop] = v;
-      }
-    }
-  }, {
-    key: "setTop",
-    value: function setTop(top) {
-      if (top && top !== 0) {
-        if (!this.style) this.style = {};
-        this.style['top'] = toString(top) + 'em';
-        this.height -= top;
-        this.depth += top;
-      }
-    }
-    /**
-     * 
-     * @param {number} left 
-     */
-
-  }, {
-    key: "setLeft",
-    value: function setLeft(left) {
-      if (left && left !== 0) {
-        if (!this.style) this.style = {};
-        this.style['margin-left'] = toString(left) + 'em';
-      }
-    }
-    /**
-     * 
-     * @param {number} right 
-     */
-
-  }, {
-    key: "setRight",
-    value: function setRight(right) {
-      if (right && right !== 0) {
-        if (!this.style) this.style = {};
-        this.style['margin-right'] = toString(right) + 'em';
-      }
-    }
-  }, {
-    key: "setWidth",
-    value: function setWidth(width) {
-      if (width && width !== 0) {
-        if (!this.style) this.style = {};
-        this.style['width'] = toString(width) + 'em';
-      }
-    }
-  }, {
-    key: "addMarginRight",
-    value: function addMarginRight(margin) {
-      if (margin && margin !== 0) {
-        if (!this.style && !/qquad|quad|enspace|thickspace|mediumspace|thinspace|negativethinspace/.test(this.classes)) {
-          // Attempt to use a class instead of an explicit margin
-          var cls = {
-            '2': 'qquad',
-            '1': 'quad',
-            '.5': 'enspace',
-            '0.277778': 'thickspace',
-            '0.222222': 'mediumspace',
-            '0.166667': 'thinspace',
-            '-0.166667': 'negativethinspace'
-          }[margin.toString()];
-
-          if (cls) {
-            this.classes += ' rspace ' + cls;
-            return;
-          }
-        }
-
-        if (!this.style) this.style = {};
-        var currentMargin = parseFloat(this.style['margin-right'] || '0');
-        this.style['margin-right'] = toString(currentMargin + margin) + 'em';
-      }
-    }
-    /**
-     * Generate the HTML markup to represent this span.
-     *
-     * @param {number} [hskip=0] - Space (in mu, 1/18em) to leave on the left side
-     * of the span. Implemented as a Unicode character if possible, a margin-left otherwise.
-     * @param {number} [hscale=1.0] - If a value is provided, the margins are scaled by
-     * this factor.
-     * @return {string} HTML markup
-     * @method module:core/span.Span#toMarkup
-     * @private
-     */
-
-  }, {
-    key: "toMarkup",
-    value: function toMarkup(hskip, hscale) {
-      hskip = hskip || 0;
-      hscale = hscale || 1.0;
-      var result = '';
-      var body = this.body || '';
-
-      if (this.children) {
-        var previousType = 'none';
-        var _iteratorNormalCompletion2 = true;
-        var _didIteratorError2 = false;
-        var _iteratorError2 = undefined;
-
-        try {
-          for (var _iterator2 = this.children[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-            var child = _step2.value;
-            var spacing = 0;
-
-            if (previousType) {
-              var type = child.type;
-
-              if (type) {
-                if (type === 'textord') type = 'mord';
-                if (type === 'first') type = 'none';
-
-                if (child.isTight) {
-                  spacing = INTER_ATOM_TIGHT_SPACING[previousType + '+' + type] || 0;
-                } else {
-                  spacing = INTER_ATOM_SPACING[previousType + '+' + type] || 0;
-                }
-
-                spacing = Math.floor(hscale * spacing);
-              }
-            }
-
-            body += child.toMarkup(spacing, hscale);
-            previousType = lastSpanType(child);
-          }
-        } catch (err) {
-          _didIteratorError2 = true;
-          _iteratorError2 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-              _iterator2.return();
-            }
-          } finally {
-            if (_didIteratorError2) {
-              throw _iteratorError2;
-            }
-          }
-        }
-      } // Collapse 'empty' spans
-
-
-      if ((body === "\u200B" || !body) && (!this.classes || this.classes === 'ML__selected')) {
-        result = '';
-      } else {
-        // Note: We can't omit the tag, even if it has no class and no style,
-        // as some layouts (vlist) depends on the presence of the tag to function
-        result = '<span';
-
-        if (this.cssId) {
-          result += ' id="' + this.cssId + '" ';
-        }
-
-        if (this.svgOverlay) {
-          this.setStyle('position', 'relative');
-          this.setStyle('height', this.height + this.depth, 'em');
-          this.setStyle('vertical-align', -this.depth, 'em');
-        }
-
-        if (this.attributes) {
-          for (var attribute in this.attributes) {
-            if (this.attributes.hasOwnProperty(attribute)) {
-              result += ' ' + attribute + '="' + this.attributes[attribute] + '"';
-            }
-          }
-        }
-
-        var classes = this.classes.split(' '); // Add the type (mbin, mrel, etc...) if specified
-
-        if (this.type) {
-          if (/command|placeholder|error/.test(this.type)) {
-            classes.push({
-              'command': 'ML__command',
-              'placeholder': 'ML__placeholder',
-              'error': 'ML__error'
-            }[this.type]);
-          }
-
-          if (this.caret && this.type === 'command') {
-            classes.push('ML__command-caret');
-          }
-        } // Remove duplicate and empty classes
-
-
-        var classList = '';
-
-        if (classes.length > 1) {
-          classList = classes.filter(function (x, e, a) {
-            return x.length > 0 && a.indexOf(x) === e;
-          }).join(' ');
-        } else {
-          classList = classes[0];
-        }
-
-        if (classList.length > 0) {
-          result += ' class="' + classList + '"';
-        } // If a `hskip` value was provided, add it to the margin-left
-
-
-        if (hskip) {
-          if (this.style && this.style['margin-left']) {
-            // There was already a margin, add to it
-            this.style['margin-left'] = toString(parseFloat(this.style['margin-left']) + hskip / 18) + 'em';
-          } else {
-            // No margin yet. Can we encode it as a Unicode space?
-            if (hskip < 0 && NEGATIVE_SPACING_CHARACTER[-hskip]) {
-              body = NEGATIVE_SPACING_CHARACTER[-hskip] + body;
-            } else if (SPACING_CHARACTER[hskip]) {
-              body = SPACING_CHARACTER[hskip] + body;
-            } else {
-              if (!this.style) this.style = {};
-              this.style['margin-left'] = toString(hskip / 18) + 'em';
-            }
-          }
-        }
-
-        if (this.style) {
-          var styleString = '';
-          var isSelected = /ML__selected/.test(this.classes);
-
-          for (var style in this.style) {
-            if (this.style.hasOwnProperty(style)) {
-              // Render the style property, except the background
-              // of selected spans
-              if (style !== 'background-color' || !isSelected) {
-                styleString += style + ':' + this.style[style] + ';';
-              }
-            }
-          }
-
-          if (styleString.length > 0) {
-            result += ' style="' + styleString + '"';
-          }
-        }
-
-        result += '>'; // If there is some SVG markup associated with this span,
-        // include it now
-
-        if (this.svgOverlay) {
-          result += '<span style="';
-          result += 'display: inline-block;';
-          result += 'height:' + (this.height + this.depth) + 'em;';
-          result += 'vertical-align:' + this.depth + 'em;';
-          result += '">';
-          result += body;
-          result += '</span>';
-          result += '<svg '; // result += 'style="position:absolute;left:0;top:0;width:100%;height:100%;z-index:2;';
-
-          result += 'style="position:absolute;';
-          result += 'overflow:overlay;';
-          result += 'height:' + (this.height + this.depth) + 'em;';
-          result += 'transform:translateY(-' + Math.round(_fontMetrics.default.toPx(this.depth, 'em') + _fontMetrics.default.toPx(this.style.padding)) + 'px);';
-
-          if (this.style && this.style.padding) {
-            result += 'top:' + this.style.padding + ';';
-            result += 'left:' + this.style.padding + ';';
-            result += 'width:calc(100% - 2 * ' + this.style.padding + ' );';
-          } else {
-            result += 'top:0;';
-            result += 'left:0;';
-            result += 'width:100%;';
-          }
-
-          result += 'z-index:2;';
-          result += '"';
-
-          if (this.svgStyle) {
-            result += ' style="' + this.svgStyle + '"';
-          }
-
-          result += '>';
-          result += this.svgOverlay;
-          result += '</svg>';
-        } else {
-          result += body;
-        }
-
-        result = result + '</span>';
-      }
-
-      if (this.caret && this.type !== 'command') {
-        if (this.caret === 'text') {
-          result = result + '<span class="ML__text-caret"></span>';
-        } else {
-          result = result + '<span class="ML__caret"></span>';
-        }
-      }
-
-      return result;
-    }
-    /**
-     * Can this span be coalesced with 'span'?
-     * This is used to 'coalesce' (i.e. group together) a series of spans that are
-     * identical except for their value, and to avoid generating redundant spans.
-     * That is: '12' ->
-     *      "<span class='mord mathrm'>12</span>"
-     * rather than:
-     *      "<span class='mord mathrm'>1</span><span class='mord mathrm'>2</span>"
-     * @param {Span} span
-     * @return {boolean}
-     * @method module:core/span.Span#tryCoalesceWith
-     * @private
-     */
-
-  }, {
-    key: "tryCoalesceWith",
-    value: function tryCoalesceWith(span) {
-      if (this.tag !== span.tag) return false;
-      if (this.type !== span.type) return false; // Don't coalesce consecutive errors or placeholders
-
-      if (this.type === 'error' || this.type === 'placeholder' || this.type === 'command') return false; // If this span or the candidate span have children, we can't
-      // coalesce them, but we'll try to coalesce their children
-
-      var hasChildren = this.children && this.children.length > 0;
-      var spanHasChildren = span.children && span.children.length > 0;
-      if (hasChildren || spanHasChildren) return false; // If they have a different number of styles, can't coalesce
-
-      var thisStyleCount = this.style ? this.style.length : 0;
-      var spanStyleCount = span.style ? span.style.length : 0;
-      if (thisStyleCount !== spanStyleCount) return false; // For the purpose of our comparison,
-      // any 'empty' classes (whitespace)
-
-      var classes = this.classes.trim().replace(/\s+/g, ' ').split(' ');
-      var spanClasses = span.classes.trim().replace(/\s+/g, ' ').split(' '); // If they have a different number of classes, can't coalesce
-
-      if (classes.length !== spanClasses.length) return false; // OK, let's do the more expensive comparison now.
-      // If they have different classes, can't coalesce
-
-      classes.sort();
-      spanClasses.sort();
-
-      for (var i = 0; i < classes.length; i++) {
-        // Don't coalesce vertical separators
-        // (used in column formating with {l||r} for example
-        if (classes[i] === 'vertical-separator') return false;
-        if (classes[i] !== spanClasses[i]) return false;
-      } // If the styles are different, can't coalesce
-
-
-      if (this.style && span.style) {
-        for (var style in this.style) {
-          if (this.style.hasOwnProperty(style) && span.style.hasOwnProperty(style)) {
-            if (this.style[style] !== span.style[style]) return false;
-          }
-        }
-      } // OK, the attributes of those spans are compatible.
-      // Merge span into this
-
-
-      this.body += span.body;
-      this.height = Math.max(this.height, span.height);
-      this.depth = Math.max(this.depth, span.depth);
-      this.maxFontSize = Math.max(this.maxFontSize, span.maxFontSize); // The italic correction for the coalesced spans is the
-      // italic correction of the last span.
-
-      this.italic = span.italic;
-      return true;
-    }
-  }]);
-
-  return Span;
-}();
-/**
- * Return HTML markup representing this span, its style, classes and
- * children.
- *
- * @param {number} [hskip] amount of whitespace to insert before this element
- * This is used to adjust the inter-spacing between spans of different types,
- * e.g. 'bin' and 'rel', according to the TeX rules.
- * @alias module:core/span.INTER_ATOM_SPACING
- * @private
- */
-
-
-exports.Span = Span;
-var INTER_ATOM_SPACING = {
-  'mord+mop': 3,
-  'mord+mbin': 4,
-  'mord+mrel': 5,
-  'mord+minner': 3,
-  'mop+mord': 3,
-  'mop+mop': 3,
-  'mop+mbin': 5,
-  'mop+minner': 3,
-  'mbin+mord': 4,
-  'mbin+mop': 4,
-  'mbin+mopen': 4,
-  'mbin+minner': 4,
-  'mrel+mord': 5,
-  'mrel+mop': 5,
-  'mrel+mopen': 5,
-  'mrel+minner': 5,
-  'mclose+mop': 3,
-  'mclose+mbin': 4,
-  'mclose+mrel': 5,
-  'mclose+minner': 3,
-  'mpunct+mord': 3,
-  'mpunct+mop': 3,
-  'mpunct+mbin': 4,
-  'mpunct+mrel': 5,
-  'mpunct+mopen': 3,
-  'mpunct+mpunct': 3,
-  'mpunct+minner': 3 // See https://www.w3.org/TR/2000/WD-MathML2-20000328/chapter6.html 
-  // 6.1.4 Non-Marking Characters
-
-};
-var SPACING_CHARACTER = ["\u200B", // 0/18 ZERO-WIDTH SPACE
-"\u200A", // 1/18 HAIR SPACE
-"\u200A\u200A", // 2/18
-"\u2009", // 3/18 THIN SPACE
-"\u205F", // 4/18 MEDIUM MATHEMATICAL SPACE
-"\u205F\u200A", // 5/18 MEDIUM MATHEMATICAL SPACE + HAIR SPACE
-"\u2004", // 6/18 THREE-PER-EM SPACE   1/3em
-'', '', "\u2002" // 9/18 EN SPACE 1/2em = 9/18
-];
-var NEGATIVE_SPACING_CHARACTER = ['', "\u200A\u2063", // -1/18
-'', "\u2009\u2063", // -3/18
-"\u205F\u2063", // -4/18
-"\u2005\u2063" // -5/18
-];
-/**
- *
- * @alias module:core/span.INTER_ATOM_TIGHT_SPACING
- * @private
- */
-
-var INTER_ATOM_TIGHT_SPACING = {
-  'mord+mop': 3,
-  'mop+mord': 3,
-  'mop+mop': 3,
-  'mclose+mop': 3,
-  'minner+mop': 3
-};
-
-function lastSpanType(span) {
-  var result = span.type;
-  if (result === 'first') return 'none';
-  if (result === 'textord') return 'mord';
-  return result;
-}
-/**
- * Attempts to coalesce (merge) spans, for example consecutive text spans.
- * Return a new tree with coalesced spans.
- *
- * @param {Span[]} spans
- * @return {Span[]} coalesced tree
- * @memberof module:core/span
- * @private
- */
-
-
-function coalesce(spans) {
-  if (!spans || spans.length === 0) return [];
-  spans[0].children = coalesce(spans[0].children);
-  var result = [spans[0]];
-
-  for (var i = 1; i < spans.length; i++) {
-    if (!result[result.length - 1].tryCoalesceWith(spans[i])) {
-      spans[i].children = coalesce(spans[i].children);
-      result.push(spans[i]);
-    }
-  }
-
-  return result;
-} //----------------------------------------------------------------------------
-// UTILITY FUNCTIONS
-//----------------------------------------------------------------------------
-
-
-function height(spans) {
-  if (!spans) return 0;
-
-  if (Array.isArray(spans)) {
-    return spans.reduce(function (acc, x) {
-      return Math.max(acc, x.height);
-    }, 0);
-  }
-
-  return spans.height;
-}
-
-function depth(spans) {
-  if (!spans) return 0;
-
-  if (Array.isArray(spans)) {
-    return spans.reduce(function (acc, x) {
-      return Math.max(acc, x.depth);
-    }, 0);
-  }
-
-  return spans.depth;
-}
-
-function skew(spans) {
-  if (!spans) return 0;
-
-  if (Array.isArray(spans)) {
-    var result = 0;
-    var _iteratorNormalCompletion3 = true;
-    var _didIteratorError3 = false;
-    var _iteratorError3 = undefined;
-
-    try {
-      for (var _iterator3 = spans[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-        var span = _step3.value;
-        result += span.skew || 0;
-      }
-    } catch (err) {
-      _didIteratorError3 = true;
-      _iteratorError3 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
-          _iterator3.return();
-        }
-      } finally {
-        if (_didIteratorError3) {
-          throw _iteratorError3;
-        }
-      }
-    }
-
-    return result;
-  }
-
-  return spans.skew;
-}
-
-function italic(spans) {
-  if (!spans) return 0;
-
-  if (Array.isArray(spans)) {
-    return spans[spans.length - 1].italic;
-  }
-
-  return spans.italic;
-}
-/**
- * Make an element made of a sequence of children with classes
- * @param {(string|Span|Span[])} content the items 'contained' by this node
- * @param {string} classes list of classes attributes associated with this node
- * @memberof module:core/span
- * @private
- */
-
-
-function makeSpan(content, classes) {
-  if (Array.isArray(content)) {
-    var c = [];
-    var _iteratorNormalCompletion4 = true;
-    var _didIteratorError4 = false;
-    var _iteratorError4 = undefined;
-
-    try {
-      for (var _iterator4 = content[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
-        var s = _step4.value;
-        if (s) c.push(s);
-      }
-    } catch (err) {
-      _didIteratorError4 = true;
-      _iteratorError4 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
-          _iterator4.return();
-        }
-      } finally {
-        if (_didIteratorError4) {
-          throw _iteratorError4;
-        }
-      }
-    }
-
-    if (c.length === 1) {
-      return makeSpan(c[0], classes);
-    }
-  }
-
-  return new Span(content, classes);
-}
-/**
- *
- * @param {string} fontFamily
- * @param {string} symbol
- * @param {string} classes
- * @memberof module:core/span
- * @private
- */
-
-
-function makeSymbol(fontFamily, symbol, classes) {
-  var result = new Span(symbol, classes);
-
-  var metrics = _fontMetrics.default.getCharacterMetrics(symbol, fontFamily);
-
-  result.height = metrics.height;
-  result.depth = metrics.depth;
-  result.skew = metrics.skew;
-  result.italic = metrics.italic;
-  result.setRight(result.italic);
-  return result;
-}
-/**
- * Makes an element placed in each of the vlist elements to ensure that each
- * element has the same max font size. To do this, we create a zero-width space
- * with the correct font size.
-//  * Note: without this, even when fontSize = 0, the fraction bar is no
-//  * longer positioned correctly
- * @return {Span}
- * @memberof module:core/span
- * @private
- */
-
-
-function makeFontSizer(context, fontSize) {
-  var fontSizeAdjustment = fontSize ? fontSize / context.mathstyle.sizeMultiplier : 0;
-  var fontSizeInner = new Span("\u200B"); // ZERO WIDTH SPACE
-
-  if (fontSizeAdjustment !== 1) {
-    fontSizeInner.setStyle('font-size', fontSizeAdjustment, fontSizeAdjustment > 0 ? 'em' : '');
-    fontSizeInner.attributes = {
-      "aria-hidden": true
-    };
-  }
-
-  if (context.size !== 'size5') {
-    return new Span(fontSizeInner, 'fontsize-ensurer reset-' + context.size + ' size5');
-  }
-
-  return fontSizeAdjustment !== 0 ? fontSizeInner : null;
-}
-/**
- *
- * @param {string} type One of 'mbin', 'mop', 'mord', 'mrel' 'mclose',
- * 'mpunct', 'minner'
- * @param {string|Span[]} content A string or an array of other Spans
- * @param {string} classes CSS classes decorating this span
- * See https://tex.stackexchange.com/questions/81752/
- * for a thorough description of the TeXt atom type and their relevance to
- * proper kerning.
- * @memberof module:core/span
- * @private
- */
-
-
-function makeSpanOfType(type, content, classes) {
-  var result = makeSpan(content, classes);
-  result.type = type;
-  return result;
-}
-
-function makeOp(content, classes) {
-  return makeSpanOfType('mop', content, classes);
-}
-
-function makeOrd(content, classes) {
-  return makeSpanOfType('mord', content, classes);
-}
-
-function makeRel(content, classes) {
-  return makeSpanOfType('mrel', content, classes);
-}
-
-function makeClose(content, classes) {
-  return makeSpanOfType('mclose', content, classes);
-}
-
-function makeOpen(content, classes) {
-  return makeSpanOfType('mopen', content, classes);
-}
-
-function makeInner(content, classes) {
-  return makeSpanOfType('minner', content, classes);
-}
-
-function makePunct(content, classes) {
-  return makeSpanOfType('mpunct', content, classes);
-}
-
-function makeStyleWrap(type, children, fromStyle, toStyle, classes) {
-  classes = classes || '';
-  classes += ' style-wrap ';
-  var result = makeHlist(children, classes + fromStyle.adjustTo(toStyle));
-  result.type = type;
-  var multiplier = toStyle.sizeMultiplier / fromStyle.sizeMultiplier;
-  result.height *= multiplier;
-  result.depth *= multiplier;
-  result.maxFontSize = toStyle.sizeMultiplier;
-  return result;
-}
-/**
- * Add some SVG markup to be overlaid on top of the span
- *
- * @param {Span} body
- * @param {string} svgMarkup
- */
-
-
-function makeSVG(body, svgMarkup, svgStyle) {
-  body.svgOverlay = svgMarkup;
-  body.svgStyle = svgStyle;
-  return body;
-}
-/**
- *
- * @param {Span|Span[]} spans
- * @param {string} classes
- * @memberof module:core/span
- * @private
- */
-
-
-function makeHlist(spans, classes) {
-  if (!classes || classes.length === 0) {
-    // No decorations...
-    if (spans instanceof Span) {
-      // A single span, use it as the output
-      return spans;
-    } else if (Array.isArray(spans) && spans.length === 1) {
-      // An array, with a single span, use the single span as the output
-      return spans[0];
-    }
-  }
-
-  var result = new Span(spans, classes);
-  var multiplier = 1.0;
-
-  if (spans instanceof Span) {
-    multiplier = spans.maxFontSize;
-  } else {
-    multiplier = spans.reduce(function (acc, x) {
-      return Math.max(acc, x.maxFontSize);
-    }, 0);
-  }
-
-  result.height *= multiplier;
-  result.depth *= multiplier;
-  return result;
-}
-/**
- * Create a new span of type `vlist`, a set of vertically stacked items
- * @param {Context} context
- * @param {Array.<(number|Span)>} elements
- * An array of Span and integer. The integer can be either some kerning information
- * or the value of an individual shift of the preceding child if in 'individualShift' mode
- * @param {string} pos The method that will be used to position the elements in the vlist.
- *
- * One of:
- * - `"individualShift"`: each child must be followed by a number indicating how much to shift it (i.e. moved downwards)
- * - `"top"`: posData specifies the topmost point of the vlist (>0 move up)
- * - `"bottom"`: posData specifies the bottommost point of the vlist (>0 move down)
- * - `"shift"`: the baseline of the vlist will be positioned posData away from the baseline
- * of the first child. (>0 moves down)
- * @param {number} posData
- * @memberof module:core/span
- * @private
- */
-
-
-function makeVlist(context, elements, pos, posData) {
-  var listDepth = 0;
-  var currPos = 0;
-  pos = pos || 'shift';
-  posData = posData || 0; // Normalize the elements so that they're all either a number or
-  // a single span. If a child is an array of spans,
-  // wrap it in a span
-
-  for (var i = 0; i < elements.length; i++) {
-    if (Array.isArray(elements[i])) {
-      if (elements[i].length === 1) {
-        // If that's an array made up of a single span, use that span
-        elements[i] = elements[i][0];
-      } else {
-        // Otherwise, wrap it in a span
-        elements[i] = makeSpan(elements[i]);
-      }
-    }
-  }
-
-  if (pos === 'shift') {
-    listDepth = -elements[0].depth - posData;
-  } else if (pos === 'bottom') {
-    listDepth = -posData;
-  } else if (pos === 'top') {
-    var bottom = posData;
-    var _iteratorNormalCompletion5 = true;
-    var _didIteratorError5 = false;
-    var _iteratorError5 = undefined;
-
-    try {
-      for (var _iterator5 = elements[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
-        var element = _step5.value;
-
-        if (element instanceof Span) {
-          // It's a Span, use the dimension data
-          bottom -= element.height + element.depth;
-        } else {
-          // It's a kern adjustment
-          bottom -= element;
-        }
-      }
-    } catch (err) {
-      _didIteratorError5 = true;
-      _iteratorError5 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
-          _iterator5.return();
-        }
-      } finally {
-        if (_didIteratorError5) {
-          throw _iteratorError5;
-        }
-      }
-    }
-
-    listDepth = bottom;
-  } else if (pos === 'individualShift') {
-    // Individual adjustment to each elements.
-    // The elements list is made up of a Span followed
-    // by a shift adjustment as an integer
-    var originalElements = elements;
-    elements = [originalElements[0]]; // Add in kerns to the list of elements to get each element to be
-    // shifted to the correct specified shift
-
-    listDepth = -originalElements[1] - originalElements[0].depth;
-    currPos = listDepth;
-
-    for (var _i = 2; _i < originalElements.length; _i += 2) {
-      var diff = -originalElements[_i + 1] - currPos - originalElements[_i].depth;
-      currPos = currPos + diff;
-      var kern = diff - (originalElements[_i - 2].height + originalElements[_i - 2].depth);
-      elements.push(kern);
-      elements.push(originalElements[_i]);
-    }
-  } else {
-    console.assert(false, 'makeVList with unknown method: "' + pos + '"');
-  } // Make the fontSizer
-
-
-  var maxFontSize = 1.0;
-  var _iteratorNormalCompletion6 = true;
-  var _didIteratorError6 = false;
-  var _iteratorError6 = undefined;
-
-  try {
-    for (var _iterator6 = elements[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
-      var _element = _step6.value;
-
-      if (_element instanceof Span) {
-        maxFontSize = Math.max(maxFontSize, _element.maxFontSize);
-      }
-    }
-  } catch (err) {
-    _didIteratorError6 = true;
-    _iteratorError6 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
-        _iterator6.return();
-      }
-    } finally {
-      if (_didIteratorError6) {
-        throw _iteratorError6;
-      }
-    }
-  }
-
-  var fontSizer = makeFontSizer(context, maxFontSize);
-  var newElements = [];
-  currPos = listDepth;
-  var _iteratorNormalCompletion7 = true;
-  var _didIteratorError7 = false;
-  var _iteratorError7 = undefined;
-
-  try {
-    for (var _iterator7 = elements[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
-      var _element2 = _step7.value;
-
-      if (typeof _element2 === 'number') {
-        // It's a kern adjustment
-        currPos += _element2;
-      } else {
-        var wrap = makeSpan([fontSizer, _element2]);
-        wrap.setTop(-_element2.depth - currPos);
-        newElements.push(wrap);
-        currPos += _element2.height + _element2.depth;
-      }
-    }
-  } catch (err) {
-    _didIteratorError7 = true;
-    _iteratorError7 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
-        _iterator7.return();
-      }
-    } finally {
-      if (_didIteratorError7) {
-        throw _iteratorError7;
-      }
-    }
-  }
-
-  var result = makeSpan(newElements, 'vlist'); // Fix the final height and depth, in case there were kerns at the ends
-  // since makeSpan won't take that into account.
-
-  result.depth = Math.max(listDepth, depth(result) || 0);
-  result.height = Math.max(-currPos, height(result) || 0);
-  return result;
-} // /**
-//  * 
-//  * @param {Span|Span[]} base 
-//  * @param {number} strutHeight 
-//  * @param {number} strutDepth 
-//  */
-// function makeStrut(base, strutHeight, strutDepth) {
-//     return [base];
-//     const topStrut = makeSpan(null, 'ML__strut');
-//     topStrut.height = strutHeight || 0;
-//     topStrut.depth = 0;
-//     topStrut.setStyle('height', strutHeight, 'em');
-//     const bottomStrut = makeSpan(null, 'ML__strut--bottom');
-//     bottomStrut.height = strutHeight || 0;
-//     bottomStrut.depth = strutDepth || 0;
-//     bottomStrut.setStyle('height', strutHeight + strutDepth, 'em');
-//     if (strutDepth) {
-//         bottomStrut.setStyle('vertical-align', -strutDepth, 'em');
-//     }
-//     if (Array.isArray(base)) {
-//         base.unshift(topStrut);
-//         base.unshift(bottomStrut);
-//         return base;
-//     }
-//     return makeOrd([topStrut, bottomStrut, base]);
-// }
-//----------------------------------------------------------------------------
-// FONTS
-//----------------------------------------------------------------------------
-// Map an abstract 'fontFamily' to an actual font name
-
-
-var FONT_NAME = {
-  'ams': 'AMS-Regular',
-  'bb': 'AMS-Regular',
-  'cal': 'Caligraphic-Regular',
-  'frak': 'Fraktur-Regular',
-  'scr': 'Script-Regular',
-  'cmr': 'Main-Regular',
-  'cmss': 'SansSerif-Regular',
-  'cmtt': 'Typewriter-Regular',
-  'math': 'Math-Regular',
-  'mainit': 'Main-Italic'
-};
-var FONT_CLASS = {
-  'ams': 'ML__ams',
-  'bb': 'ML__bb',
-  'cal': 'ML__cal',
-  'frak': 'ML__frak',
-  'scr': 'ML__script',
-  'cmr': 'ML__mathrm',
-  'cmss': 'ML__sans',
-  'cmtt': 'ML__tt',
-  'math': 'ML__mathit',
-  'mainit': 'ML__mainit'
-  /**
-   * Given a font family ('frak', 'math'...) return a corresponding
-   * font name. If the font does not support the specified symbol
-   * return an alternate font or null if none could be determined.
-   * @param {(string|Span[])} symbol the character for which we're seeking the font
-   * @param {string} fontFamily such as 'mathbf', 'mathfrak', etc...
-   * @return {string} a font name
-   * @memberof module:mathAtom
-   * @private
-   */
-
-};
-
-function getFontName(symbol, fontFamily) {
-  // If this is not a single char, just do a simple fontFamily -> fontName mapping
-  if (typeof symbol !== 'string' || symbol.length > 1 || symbol === "\u200B") {
-    return FONT_NAME[fontFamily];
-  } // This is a single character. Do some remapping as necessary.
-  // If symbol is not in the repertoire of the font,
-  // return null.
-
-
-  if (fontFamily === 'bb' || fontFamily === 'scr') {
-    // These fonts only support [A-Z ]
-    if (!/^[A-Z ]$/.test(symbol)) return null;
-  } else if (fontFamily === 'cal') {
-    // Only supports uppercase latin and digits
-    if (!/^[0-9A-Z ]$/.test(symbol)) return null;
-  } else if (fontFamily === 'frak') {
-    if (!/^[0-9A-Za-z ]$|^[!"#$%&'()*+,\-./:;=?[]^’‘]$/.test(symbol)) {
-      return null;
-    }
-  } else if (fontFamily === 'cmtt' || fontFamily === 'cmss') {
-    if (!/^[0-9A-Za-z ]$|^[!"&'()*+,\-./:;=?@[]^_~\u0131\u0237\u0393\u0394\u0398\u039b\u039e\u03A0\u03A3\u03A5\u03A8\u03a9’‘]$/.test(symbol)) {
-      return null;
-    }
-  }
-
-  return FONT_NAME[fontFamily];
-} // Export the public interface for this module
-
-
-var _default = {
-  coalesce: coalesce,
-  makeSpan: makeSpan,
-  makeOp: makeOp,
-  makeOrd: makeOrd,
-  makeRel: makeRel,
-  makeClose: makeClose,
-  makeOpen: makeOpen,
-  makeInner: makeInner,
-  makePunct: makePunct,
-  makeSpanOfType: makeSpanOfType,
-  makeSymbol: makeSymbol,
-  makeVlist: makeVlist,
-  makeHlist: makeHlist,
-  makeStyleWrap: makeStyleWrap,
-  // makeStrut,
-  makeSVG: makeSVG,
-  height: height,
-  depth: depth,
-  skew: skew,
-  italic: italic
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-editableMathlist.js b/dist/editor/editor-editableMathlist.js
deleted file mode 100644
index 6fb2b677c..000000000
--- a/dist/editor/editor-editableMathlist.js
+++ /dev/null
@@ -1,4004 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.parseMathString = parseMathString;
-exports.default = void 0;
-
-var _definitions = _interopRequireDefault(require("../core/definitions.js"));
-
-var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
-
-var _lexer = _interopRequireDefault(require("../core/lexer.js"));
-
-var _parser = _interopRequireDefault(require("../core/parser.js"));
-
-var _editorMathpath = _interopRequireDefault(require("./editor-mathpath.js"));
-
-var _editorShortcuts = _interopRequireDefault(require("./editor-shortcuts.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
-
-function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
-
-function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
-
-function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
-
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
-
-function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
-
-/**
- *
- * **Note**
- * - Method names that _begin with_ an underbar `_` are private and meant
- * to be used only by the implementation of the class.
- * - Method names that _end with_ an underbar `_` are selectors. They can
- * be invoked by calling [`MathField.$perform()`]{@link MathField#$perform}.
- * They will be dispatched to an instance of `MathEditableList` as necessary.
- * Note that the selector name does not include the underbar.
- *
- * For example:
- * ```
- *    mf.$perform('selectAll');
- * ```
- *
- * @param {Object.<string, any>} config
- * @param {Element} target - A target object passed as the first argument of 
- * callback functions. Typically, a MathField.
- * @property {MathAtom[]} root - The root element of the math expression.
- * @property {Object[]} path - The path to the element that is the
- * anchor for the selection.
- * @property {number} extent - Number of atoms in the selection. `0` if the
- * selection is collapsed.
- * @property {Object.<string, any>} config
- * @property {boolean} suppressChangeNotifications - If true,
- * the handlers for notification change won't be called.
- * @class
- * @global
- * @private
- * @memberof module:editor/editableMathlist
- */
-function EditableMathlist(config, target) {
-  this.root = _mathAtom.default.makeRoot();
-  this.path = [{
-    relation: 'body',
-    offset: 0
-  }];
-  this.extent = 0;
-  this.config = config ? _objectSpread({}, config) : {};
-  this.target = target;
-  this.suppressChangeNotifications = false;
-}
-
-function clone(mathlist) {
-  var result = Object.assign(new EditableMathlist(mathlist.config, mathlist.target), mathlist);
-  result.path = _editorMathpath.default.clone(mathlist.path);
-  return result;
-}
-
-EditableMathlist.prototype._announce = function (command, mathlist, atoms) {
-  if (typeof this.config.onAnnounce === 'function') {
-    this.config.onAnnounce(this.target, command, mathlist, atoms);
-  }
-};
-/**
- * Iterate over each atom in the expression, starting with the focus.
- *
- * Return an array of all the paths for which the callback predicate
- * returned true.
- *
- * @param {function} cb - A predicate being passed a path and the atom at this
- * path. Return true to include the designated atom in the result.
- * @param {number} dir - `+1` to iterate forward, `-1` to iterate backward.
- * @return {MathAtom[]} The atoms for which the predicate is true
- * @method EditableMathlist#filter
- * @private
- */
-
-
-EditableMathlist.prototype.filter = function (cb, dir) {
-  dir = dir < 0 ? -1 : +1;
-  var result = [];
-  var iter = new EditableMathlist();
-  iter.path = _editorMathpath.default.clone(this.path);
-  iter.extent = this.extent;
-  iter.root = this.root;
-
-  if (dir >= 0) {
-    iter.collapseForward();
-  } else {
-    iter.collapseBackward();
-    iter.move(1);
-  }
-
-  var initialAnchor = iter.anchor();
-
-  do {
-    if (cb.bind(iter)(iter.path, iter.anchor())) {
-      result.push(iter.toString());
-    }
-
-    if (dir >= 0) {
-      iter.next({
-        iterateAll: true
-      });
-    } else {
-      iter.previous({
-        iterateAll: true
-      });
-    }
-  } while (initialAnchor !== iter.anchor());
-
-  return result;
-};
-/**
- * Enumerator
- * @param {function} cb - A callback called for each atom in the mathlist.
- */
-
-
-EditableMathlist.prototype.forEach = function (cb) {
-  this.root.forEach(cb);
-};
-/**
- * 
- * @param {function} cb - A callback called for each selected atom in the 
- * mathlist.
- */
-
-
-EditableMathlist.prototype.forEachSelected = function (cb, options) {
-  options = options || {};
-  options.recursive = typeof options.recursive !== 'undefined' ? options.recursive : false;
-  var siblings = this.siblings();
-  var firstOffset = this.startOffset() + 1;
-  var lastOffset = this.endOffset() + 1;
-
-  if (options.recursive) {
-    for (var i = firstOffset; i < lastOffset; i++) {
-      if (siblings[i] && siblings[i].type !== 'first') {
-        siblings[i].forEach(cb);
-      }
-    }
-  } else {
-    for (var _i = firstOffset; _i < lastOffset; _i++) {
-      if (siblings[_i] && siblings[_i].type !== 'first') {
-        cb(siblings[_i]);
-      }
-    }
-  }
-};
-/**
- * Return a string representation of the selection.
- * @todo This is a bad name for this function, since it doesn't return
- * a representation of the content, which one might expect...
- *
- * @return {string}
- * @method EditableMathlist#toString
- * @private
- */
-
-
-EditableMathlist.prototype.toString = function () {
-  return _editorMathpath.default.pathToString(this.path, this.extent);
-};
-/**
- * When changing the selection, if the former selection is an empty list,
- * insert a placeholder if necessary. For example, if in an empty numerator.
-*/
-
-
-EditableMathlist.prototype.adjustPlaceholder = function () {
-  // Should we insert a placeholder?
-  // Check if we're an empty list that is the child of a fraction
-  var siblings = this.siblings();
-
-  if (siblings && siblings.length <= 1) {
-    var placeholder;
-    var relation = this.relation();
-
-    if (relation === 'numer') {
-      placeholder = 'numerator';
-    } else if (relation === 'denom') {
-      placeholder = 'denominator';
-    } else if (this.parent().type === 'surd' && relation === 'body') {
-      // Surd (roots)
-      placeholder = 'radicand';
-    } else if (this.parent().type === 'overunder' && relation === 'body') {
-      placeholder = 'base';
-    } else if (relation === 'underscript' || relation === 'overscript') {
-      placeholder = 'annotation';
-    }
-
-    if (placeholder) {
-      // ◌ ⬚
-      var placeholderAtom = [new _mathAtom.default.MathAtom('math', 'placeholder', '⬚', this.anchorStyle())];
-      Array.prototype.splice.apply(siblings, [1, 0].concat(placeholderAtom));
-    }
-  }
-};
-
-EditableMathlist.prototype.selectionWillChange = function () {
-  if (typeof this.config.onSelectionWillChange === 'function' && !this.suppressChangeNotifications) {
-    this.config.onSelectionWillChange(this.target);
-  }
-};
-
-EditableMathlist.prototype.selectionDidChange = function () {
-  if (typeof this.config.onSelectionDidChange === 'function' && !this.suppressChangeNotifications) {
-    this.config.onSelectionDidChange(this.target);
-  }
-};
-
-EditableMathlist.prototype.contentWillChange = function () {
-  if (typeof this.config.onContentWillChange === 'function' && !this.suppressChangeNotifications) {
-    this.config.onContentWillChange(this.target);
-  }
-};
-
-EditableMathlist.prototype.contentDidChange = function () {
-  if (typeof this.config.onContentDidChange === 'function' && !this.suppressChangeNotifications) {
-    this.config.onContentDidChange(this.target);
-  }
-};
-/**
- *
- * @param {string|Array} selection
- * @param {number} extent the length of the selection
- * @return {boolean} true if the path has actually changed
- */
-
-
-EditableMathlist.prototype.setPath = function (selection, extent) {
-  // Convert to a path array if necessary
-  if (typeof selection === 'string') {
-    selection = _editorMathpath.default.pathFromString(selection);
-  } else if (Array.isArray(selection)) {
-    // need to temporarily change the path of this to use 'sibling()'
-    var newPath = _editorMathpath.default.clone(selection);
-
-    var oldPath = this.path;
-    this.path = newPath;
-
-    if (extent === 0 && this.anchor().type === 'placeholder') {
-      // select the placeholder
-      newPath[newPath.length - 1].offset = 0;
-      extent = 1;
-    }
-
-    selection = {
-      path: newPath,
-      extent: extent || 0
-    };
-    this.path = oldPath;
-  }
-
-  var pathChanged = _editorMathpath.default.pathDistance(this.path, selection.path) !== 0;
-  var extentChanged = selection.extent !== this.extent;
-
-  if (pathChanged || extentChanged) {
-    if (pathChanged) {
-      this.adjustPlaceholder();
-    }
-
-    this.selectionWillChange();
-    this.path = _editorMathpath.default.clone(selection.path);
-
-    if (this.siblings().length < this.anchorOffset()) {
-      // The new path is out of bounds.
-      // Reset the path to something valid
-      console.warn('Invalid selection: ' + this.toString() + ' in "' + this.root.toLatex() + '"');
-      this.path = [{
-        relation: 'body',
-        offset: 0
-      }];
-      this.extent = 0;
-    } else {
-      this.setExtent(selection.extent);
-    }
-
-    this.selectionDidChange();
-  }
-
-  return pathChanged || extentChanged;
-};
-
-EditableMathlist.prototype.wordBoundary = function (path, dir) {
-  dir = dir < 0 ? -1 : +1;
-  var iter = new EditableMathlist();
-  iter.path = _editorMathpath.default.clone(path);
-  iter.root = this.root;
-  var i = 0;
-
-  while (iter.sibling(i) && iter.sibling(i).mode === 'text' && _definitions.default.LETTER_AND_DIGITS.test(iter.sibling(i).body)) {
-    i += dir;
-  }
-
-  if (!iter.sibling(i)) i -= dir;
-  iter.path[iter.path.length - 1].offset += i;
-  return iter.path;
-};
-/**
- * Calculates the offset of the "next word".
- * This is inspired by the behavior of text editors on macOS, namely:
-    blue   yellow
-      ^-                
-         ^-------       
- * That is:
-
- * (1) If starts with an alphanumerical character, find the first alphanumerical
- * character which is followed by a non-alphanumerical character
- * 
- * The behavior regarding non-alphanumeric characters is less consistent.
- * Here's the behavior we use:
- * 
- *   +=-()_:”     blue
- * ^---------   
- *   +=-()_:”     blue
- *      ^---------
- *   +=-()_:”blue
- *      ^--------
- * 
- * (2) If starts in whitespace, skip whitespace, then find first non-whitespace*
- *    followed by whitespace
- * (*) Pages actually uses the character class of the first non-whitespace 
- * encountered.
- * 
- * (3) If starts in a non-whitespace, non alphanumerical character, find the first 
- *      whitespace
- * 
- */
-
-
-EditableMathlist.prototype.wordBoundaryOffset = function (offset, dir) {
-  dir = dir < 0 ? -1 : +1;
-  var siblings = this.siblings();
-  if (!siblings[offset]) return offset;
-  if (siblings[offset].mode !== 'text') return offset;
-  var result;
-
-  if (_definitions.default.LETTER_AND_DIGITS.test(siblings[offset].body)) {
-    // (1) We start with an alphanumerical character
-    var i = offset;
-    var match;
-
-    do {
-      match = siblings[i].mode === 'text' && _definitions.default.LETTER_AND_DIGITS.test(siblings[i].body);
-      i += dir;
-    } while (siblings[i] && match);
-
-    result = siblings[i] ? i - 2 * dir : i - dir;
-  } else if (/\s/.test(siblings[offset].body)) {
-    // (2) We start with whitespace
-    // Skip whitespace
-    var _i2 = offset;
-
-    while (siblings[_i2] && siblings[_i2].mode === 'text' && /\s/.test(siblings[_i2].body)) {
-      _i2 += dir;
-    }
-
-    if (!siblings[_i2]) {
-      // We've reached the end
-      result = _i2 - dir;
-    } else {
-      var _match = true;
-
-      do {
-        _match = siblings[_i2].mode === 'text' && !/\s/.test(siblings[_i2].body);
-        _i2 += dir;
-      } while (siblings[_i2] && _match);
-
-      result = siblings[_i2] ? _i2 - 2 * dir : _i2 - dir;
-    }
-  } else {
-    // (3) 
-    var _i3 = offset; // Skip non-whitespace
-
-    while (siblings[_i3] && siblings[_i3].mode === 'text' && !/\s/.test(siblings[_i3].body)) {
-      _i3 += dir;
-    }
-
-    result = siblings[_i3] ? _i3 : _i3 - dir;
-    var _match2 = true;
-
-    while (siblings[_i3] && _match2) {
-      _match2 = siblings[_i3].mode === 'text' && /\s/.test(siblings[_i3].body);
-      if (_match2) result = _i3;
-      _i3 += dir;
-    }
-
-    result = siblings[_i3] ? _i3 - 2 * dir : _i3 - dir;
-  }
-
-  return result - (dir > 0 ? 0 : 1);
-};
-/**
- * Extend the selection between `from` and `to` nodes
- *
- * @param {string[]} from
- * @param {string[]} to
- * @param {object} options
- * - options.extendToWordBoundary
- * @method EditableMathlist#setRange
- * @return {boolean} true if the range was actually changed
- * @private
- */
-
-
-EditableMathlist.prototype.setRange = function (from, to, options) {
-  options = options || {}; // Measure the 'distance' between `from` and `to`
-
-  var distance = _editorMathpath.default.pathDistance(from, to);
-
-  if (distance === 0) {
-    // `from` and `to` are equal.
-    if (options.extendToWordBoundary) {
-      from = this.wordBoundary(from, -1);
-      to = this.wordBoundary(to, +1);
-      return this.setRange(from, to);
-    } // Set the path to a collapsed insertion point
-
-
-    return this.setPath(_editorMathpath.default.clone(from), 0);
-  }
-
-  if (distance === 1) {
-    var _extent = to[to.length - 1].offset - from[from.length - 1].offset;
-
-    if (options.extendToWordBoundary) {
-      from = this.wordBoundary(from, _extent < 0 ? +1 : -1);
-      to = this.wordBoundary(to, _extent < 0 ? -1 : +1);
-      return this.setRange(from, to);
-    } // They're siblings, set an extent
-
-
-    return this.setPath(_editorMathpath.default.clone(from), _extent);
-  } // They're neither identical, not siblings.
-  // Find the common ancestor between the nodes
-
-
-  var commonAncestor = _editorMathpath.default.pathCommonAncestor(from, to);
-
-  var ancestorDepth = commonAncestor.length;
-
-  if (from.length === ancestorDepth || to.length === ancestorDepth || from[ancestorDepth].relation !== to[ancestorDepth].relation) {
-    return this.setPath(commonAncestor, -1);
-  }
-
-  commonAncestor.push(from[ancestorDepth]);
-  commonAncestor = _editorMathpath.default.clone(commonAncestor);
-  var extent = to[ancestorDepth].offset - from[ancestorDepth].offset + 1;
-
-  if (extent <= 0) {
-    if (to.length > ancestorDepth + 1) {
-      // axb/c+y -> select from y to x
-      commonAncestor[ancestorDepth].relation = to[ancestorDepth].relation;
-      commonAncestor[ancestorDepth].offset = to[ancestorDepth].offset;
-      commonAncestor[commonAncestor.length - 1].offset -= 1;
-      extent = -extent + 2;
-    } else {
-      // x+(ayb/c) -> select from y to x
-      commonAncestor[ancestorDepth].relation = to[ancestorDepth].relation;
-      commonAncestor[ancestorDepth].offset = to[ancestorDepth].offset;
-      extent = -extent + 1;
-    }
-  } else if (to.length <= from.length) {
-    // axb/c+y -> select from x to y
-    commonAncestor[commonAncestor.length - 1].offset -= 1;
-  } else if (to.length > from.length) {
-    commonAncestor[ancestorDepth].offset -= 1;
-  }
-
-  return this.setPath(commonAncestor, extent);
-};
-/**
- * Convert an array row/col into an array index.
- * @param {MathAtom[][]} array
- * @param {object} rowCol
- * @return {number}
- */
-
-
-function arrayIndex(array, rowCol) {
-  var result = 0;
-
-  for (var i = 0; i < rowCol.row; i++) {
-    for (var j = 0; j < array[i].length; j++) {
-      result += 1;
-    }
-  }
-
-  result += rowCol.col;
-  return result;
-}
-/**
- * Convert an array index (scalar) to an array row/col.
- * @param {MathAtom[][]} array
- * @param {number|string} index
- * @return {object}
- * - row: number
- * - col: number
- */
-
-
-function arrayColRow(array, index) {
-  if (typeof index === 'string') {
-    var m = index.match(/cell([0-9]*)$/);
-    if (m) index = parseInt(m[1]);
-  }
-
-  var result = {
-    row: 0,
-    col: 0
-  };
-
-  while (index > 0) {
-    result.col += 1;
-
-    if (!array[result.row] || result.col >= array[result.row].length) {
-      result.col = 0;
-      result.row += 1;
-    }
-
-    index -= 1;
-  }
-
-  return result;
-}
-/**
- * Return the array cell corresponding to colrow or null (for example in
- * a sparse array)
- *
- * @param {MathAtom[][]} array
- * @param {number|string|object} colrow
- */
-
-
-function arrayCell(array, colrow) {
-  if (_typeof(colrow) !== 'object') colrow = arrayColRow(array, colrow);
-  var result;
-
-  if (Array.isArray(array[colrow.row])) {
-    result = array[colrow.row][colrow.col] || null;
-  } // If the 'first' math atom is missing, insert it
-
-
-  if (result && (result.length === 0 || result[0].type !== 'first')) {
-    result.unshift(makeFirstAtom());
-  }
-
-  return result;
-}
-/**
- * Total numbers of cells (include sparse cells) in the array.
- * @param {MathAtom[][]} array
- */
-
-
-function arrayCellCount(array) {
-  var result = 0;
-  var numRows = 0;
-  var numCols = 1;
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
-
-  try {
-    for (var _iterator = array[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var row = _step.value;
-      numRows += 1;
-      if (row.length > numCols) numCols = row.length;
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator.return != null) {
-        _iterator.return();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
-    }
-  }
-
-  result = numRows * numCols;
-  return result;
-}
-/**
- * Join all the cells at the indicated row into a single mathlist
- * @param {MathAtom[]} row 
- * @param {string} separator 
- * @param {object} style 
- * @return {MathAtom[]}
- */
-
-
-function arrayJoinColumns(row, separator, style) {
-  if (!row) return [];
-  if (!separator) separator = ',';
-  var result = [];
-  var sep;
-  var _iteratorNormalCompletion2 = true;
-  var _didIteratorError2 = false;
-  var _iteratorError2 = undefined;
-
-  try {
-    for (var _iterator2 = row[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-      var cell = _step2.value;
-
-      if (cell && cell.length > 0 && cell[0].type === 'first') {
-        // Remove the 'first' atom, if present
-        cell = cell.slice(1);
-      }
-
-      if (cell && cell.length > 0) {
-        if (sep) {
-          result.push(sep);
-        } else {
-          sep = new _mathAtom.default.MathAtom('math', 'mpunct', separator, style);
-        }
-
-        result = result.concat(cell);
-      }
-    }
-  } catch (err) {
-    _didIteratorError2 = true;
-    _iteratorError2 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-        _iterator2.return();
-      }
-    } finally {
-      if (_didIteratorError2) {
-        throw _iteratorError2;
-      }
-    }
-  }
-
-  return result;
-}
-/**
- * Join all the rows into a single atom list
- * @param {MathAtom} array 
- * @param {strings} separators
- * @param {object} style 
- * @return {MathAtom[]}
- */
-
-
-function arrayJoinRows(array, separators, style) {
-  if (!separators) separators = [';', ','];
-  var result = [];
-  var sep;
-  var _iteratorNormalCompletion3 = true;
-  var _didIteratorError3 = false;
-  var _iteratorError3 = undefined;
-
-  try {
-    for (var _iterator3 = array[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-      var row = _step3.value;
-
-      if (sep) {
-        result.push(sep);
-      } else {
-        sep = new _mathAtom.default.MathAtom('math', 'mpunct', separators[0], style);
-      }
-
-      result = result.concat(arrayJoinColumns(row, separators[1]));
-    }
-  } catch (err) {
-    _didIteratorError3 = true;
-    _iteratorError3 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
-        _iterator3.return();
-      }
-    } finally {
-      if (_didIteratorError3) {
-        throw _iteratorError3;
-      }
-    }
-  }
-
-  return result;
-}
-/**
- * Return the number of non-empty cells in that column
- * @param {MathAtom} array 
- * @param {number} col 
- * @return {number}
- */
-
-
-function arrayColumnCellCount(array, col) {
-  var result = 0;
-  var colRow = {
-    col: col,
-    row: 0
-  };
-
-  while (colRow.row < array.length) {
-    var cell = arrayCell(array, colRow);
-
-    if (cell && cell.length > 0) {
-      var cellLen = cell.length;
-      if (cell[0].type === 'first') cellLen -= 1;
-
-      if (cellLen > 0) {
-        result += 1;
-      }
-    }
-
-    colRow.row += 1;
-  }
-
-  return result;
-}
-/**
- * Remove the indicated column from the array
- * @param {MathAtom} array 
- * @param {number} col 
- */
-
-
-function arrayRemoveColumn(array, col) {
-  var row = 0;
-
-  while (row < array.length) {
-    if (array[row][col]) {
-      array[row].splice(col, 1);
-    }
-
-    row += 1;
-  }
-}
-/**
- * Remove the indicated row from the array
- * @param {MathAtom} atom 
- * @param {number} row 
- */
-
-
-function arrayRemoveRow(array, row) {
-  array.splice(row, 1);
-}
-/**
- * Return the first non-empty cell, row by row
- * @param {MathAtom[][]} array 
- * @return {string}
- */
-
-
-function arrayFirstCellByRow(array) {
-  var colRow = {
-    col: 0,
-    row: 0
-  };
-
-  while (colRow.row < array.length && !arrayCell(array, colRow)) {
-    colRow.row += 1;
-  }
-
-  return arrayCell(array, colRow) ? 'cell' + arrayIndex(array, colRow) : '';
-}
-/**
- * Adjust colRow to point to the next/previous available row
- * If no more rows, go to the next/previous column
- * If no more columns, return null
- * @param {MathAtom[][]} array 
- * @param {object} colRow 
- * @param {number} dir 
- */
-
-
-function arrayAdjustRow(array, colRow, dir) {
-  var result = _objectSpread({}, colRow);
-
-  result.row += dir;
-
-  if (result.row < 0) {
-    result.col += dir;
-    result.row = array.length - 1;
-    if (result.col < 0) return null;
-
-    while (result.row >= 0 && !arrayCell(array, result)) {
-      result.row -= 1;
-    }
-
-    if (result.row < 0) return null;
-  } else if (result.row >= array.length) {
-    result.col += dir;
-    result.row = 0;
-
-    while (result.row < array.length && !arrayCell(array, result)) {
-      result.row += 1;
-    }
-
-    if (result.row > array.length - 1) return null;
-  }
-
-  return result;
-}
-/**
- * @param {number} ancestor distance from self to ancestor.
- * - `ancestor` = 0: self
- * - `ancestor` = 1: parent
- * - `ancestor` = 2: grand-parent
- * - etc...
- * @return {MathAtom}
- * @method EditableMathlist#ancestor
- * @private
- */
-
-
-EditableMathlist.prototype.ancestor = function (ancestor) {
-  // If the requested ancestor goes beyond what's available,
-  // return null
-  if (ancestor > this.path.length) return null; // Start with the root
-
-  var result = this.root; // Iterate over the path segments, selecting the appropriate
-
-  for (var i = 0; i < this.path.length - ancestor; i++) {
-    var segment = this.path[i];
-
-    if (result.array) {
-      result = arrayCell(result.array, segment.relation)[segment.offset];
-    } else if (!result[segment.relation]) {
-      // There is no such relation... (the path got out of sync with the tree)
-      return null;
-    } else {
-      // Make sure the 'first' atom has been inserted, otherwise
-      // the segment.offset might be invalid
-      if (result[segment.relation].length === 0 || result[segment.relation][0].type !== 'first') {
-        result[segment.relation].unshift(makeFirstAtom());
-      }
-
-      var offset = Math.min(segment.offset, result[segment.relation].length - 1);
-      result = result[segment.relation][offset];
-    }
-  }
-
-  return result;
-};
-/**
- * The atom where the selection starts. When the selection is extended
- * the anchor remains fixed. The anchor could be either before or
- * after the focus.
- *
- * @method EditableMathlist#anchor
- * @private
- */
-
-
-EditableMathlist.prototype.anchor = function () {
-  if (this.parent().array) {
-    return arrayCell(this.parent().array, this.relation())[this.anchorOffset()];
-  }
-
-  var siblings = this.siblings();
-  return siblings[Math.min(siblings.length - 1, this.anchorOffset())];
-};
-
-EditableMathlist.prototype.parent = function () {
-  return this.ancestor(1);
-};
-
-EditableMathlist.prototype.relation = function () {
-  return this.path.length > 0 ? this.path[this.path.length - 1].relation : '';
-};
-
-EditableMathlist.prototype.anchorOffset = function () {
-  return this.path.length > 0 ? this.path[this.path.length - 1].offset : 0;
-};
-
-EditableMathlist.prototype.focusOffset = function () {
-  return this.path.length > 0 ? this.path[this.path.length - 1].offset + this.extent : 0;
-};
-/**
- * Offset of the first atom included in the selection
- * i.e. `=1` => selection starts with and includes first atom
- * With expression _x=_ and atoms :
- * - 0: _<first>_
- * - 1: _x_
- * - 2: _=_
- *
- * - if caret is before _x_:  `start` = 0, `end` = 0
- * - if caret is after _x_:   `start` = 1, `end` = 1
- * - if _x_ is selected:      `start` = 1, `end` = 2
- * - if _x=_ is selected:   `start` = 1, `end` = 3
- * @method EditableMathlist#startOffset
- * @private
- */
-
-
-EditableMathlist.prototype.startOffset = function () {
-  return Math.min(this.focusOffset(), this.anchorOffset());
-};
-/**
- * Offset of the first atom not included in the selection
- * i.e. max value of `siblings.length`
- * `endOffset - startOffset = extent`
- * @method EditableMathlist#endOffset
- * @private
- */
-
-
-EditableMathlist.prototype.endOffset = function () {
-  return Math.max(this.focusOffset(), this.anchorOffset());
-};
-/**
- * If necessary, insert a `first` atom in the sibling list.
- * If there's already a `first` atom, do nothing.
- * The `first` atom is used as a 'placeholder' to hold the blinking caret when
- * the caret is positioned at the very beginning of the mathlist.
- * @method EditableMathlist#insertFirstAtom
- * @private
- */
-
-
-EditableMathlist.prototype.insertFirstAtom = function () {
-  this.siblings();
-};
-/**
- * @return {MathAtom[]} array of children of the parent
- * @method EditableMathlist#siblings
- * @private
- */
-
-
-EditableMathlist.prototype.siblings = function () {
-  if (this.path.length === 0) return [];
-  var siblings;
-
-  if (this.parent().array) {
-    siblings = arrayCell(this.parent().array, this.relation());
-  } else {
-    siblings = this.parent()[this.relation()] || [];
-    if (typeof siblings === 'string') siblings = [];
-  } // If the 'first' math atom is missing, insert it
-
-
-  if (siblings.length === 0 || siblings[0].type !== 'first') {
-    siblings.unshift(makeFirstAtom());
-  }
-
-  return siblings;
-};
-/**
- * Sibling, relative to `anchor`
- * `sibling(0)` = start of selection
- * `sibling(-1)` = sibling immediately left of start offset
- * @return {MathAtom}
- * @method EditableMathlist#sibling
- * @private
- */
-
-
-EditableMathlist.prototype.sibling = function (offset) {
-  return this.siblings()[this.startOffset() + offset];
-};
-/**
- * @return {boolean} True if the selection is an insertion point.
- * @method EditableMathlist#isCollapsed
- */
-
-
-EditableMathlist.prototype.isCollapsed = function () {
-  return this.extent === 0;
-};
-/**
- * @param {number} extent
- * @method EditableMathlist#setExtent
- * @private
- */
-
-
-EditableMathlist.prototype.setExtent = function (extent) {
-  this.extent = extent;
-};
-
-EditableMathlist.prototype.collapseForward = function () {
-  if (this.extent === 0) return false;
-  this.setSelection(this.endOffset());
-  return true;
-};
-
-EditableMathlist.prototype.collapseBackward = function () {
-  if (this.extent === 0) return false;
-  this.setSelection(this.startOffset());
-  return true;
-};
-/**
- * Return true if the atom could be a part of a number
- * i.e. "-12354.568"
- * @param {object} atom 
- */
-
-
-function isNumber(atom) {
-  if (!atom) return false;
-  return atom.type === 'mord' && /[0-9.]/.test(atom.body) || atom.type === 'mpunct' && atom.body === ',';
-}
-/**
- * Select all the atoms in the current group, that is all the siblings.
- * When the selection is in a numerator, the group is the numerator. When
- * the selection is a superscript or subscript, the group is the supsub.
- * When the selection is in a text zone, the "group" is a word.
- * @method EditableMathlist#selectGroup_
- */
-
-
-EditableMathlist.prototype.selectGroup_ = function () {
-  var siblings = this.siblings();
-
-  if (this.anchorMode() === 'text') {
-    var start = this.startOffset();
-    var end = this.endOffset(); // 
-
-    while (siblings[start] && siblings[start].mode === 'text' && _definitions.default.LETTER_AND_DIGITS.test(siblings[start].body)) {
-      start -= 1;
-    }
-
-    while (siblings[end] && siblings[end].mode === 'text' && _definitions.default.LETTER_AND_DIGITS.test(siblings[end].body)) {
-      end += 1;
-    }
-
-    end -= 1;
-
-    if (start >= end) {
-      // No word found. Select a single character
-      this.setSelection(this.endOffset() - 1, 1);
-      return;
-    }
-
-    this.setSelection(start, end - start);
-  } else {
-    // In a math zone, select all the sibling nodes
-    if (this.sibling(0).type === 'mord' && /[0-9,.]/.test(this.sibling(0).body)) {
-      // In a number, select all the digits
-      var _start = this.startOffset();
-
-      var _end = this.endOffset(); // 
-
-
-      while (isNumber(siblings[_start])) {
-        _start -= 1;
-      }
-
-      while (isNumber(siblings[_end])) {
-        _end += 1;
-      }
-
-      _end -= 1;
-      this.setSelection(_start, _end - _start);
-    } else {
-      this.setSelection(0, 'end');
-    }
-  }
-};
-/**
- * Select all the atoms in the math field.
- * @method EditableMathlist#selectAll_
- */
-
-
-EditableMathlist.prototype.selectAll_ = function () {
-  this.path = [{
-    relation: 'body',
-    offset: 0
-  }];
-  this.setSelection(0, 'end');
-};
-/**
- * Delete everything in the field
- * @method EditableMathlist#deleteAll_
- */
-
-
-EditableMathlist.prototype.deleteAll_ = function () {
-  this.selectAll_();
-  this.delete_();
-};
-/**
- *
- * @param {MathAtom} atom
- * @param {MathAtom} target
- * @return {boolean} True if  `atom` is the target, or if one of the
- * children of `atom` contains the target
- * @function atomContains
- * @private
- */
-
-
-function atomContains(atom, target) {
-  if (!atom) return false;
-
-  if (Array.isArray(atom)) {
-    var _iteratorNormalCompletion4 = true;
-    var _didIteratorError4 = false;
-    var _iteratorError4 = undefined;
-
-    try {
-      for (var _iterator4 = atom[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
-        var child = _step4.value;
-        if (atomContains(child, target)) return true;
-      }
-    } catch (err) {
-      _didIteratorError4 = true;
-      _iteratorError4 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
-          _iterator4.return();
-        }
-      } finally {
-        if (_didIteratorError4) {
-          throw _iteratorError4;
-        }
-      }
-    }
-  } else {
-    if (atom === target) return true;
-    if (['body', 'numer', 'denom', 'index', 'subscript', 'superscript', 'underscript', 'overscript'].some(function (value) {
-      return value === target || atomContains(atom[value], target);
-    })) return true;
-
-    if (atom.array) {
-      for (var i = arrayCellCount(atom.array); i >= 0; i--) {
-        if (atomContains(arrayCell(atom.array, i), target)) {
-          return true;
-        }
-      }
-    }
-  }
-
-  return false;
-}
-/**
- * @param {MathAtom} atom
- * @return {boolean} True if `atom` is within the selection range
- * @todo: poorly named, since this is specific to the selection, not the math
- * field
- * @method EditableMathlist#contains
- * @private
- */
-
-
-EditableMathlist.prototype.contains = function (atom) {
-  if (this.isCollapsed()) return false;
-  var siblings = this.siblings();
-  var firstOffset = this.startOffset();
-  var lastOffset = this.endOffset();
-
-  for (var i = firstOffset; i < lastOffset; i++) {
-    if (atomContains(siblings[i], atom)) return true;
-  }
-
-  return false;
-};
-/**
- * @return {MathAtom[]} The currently selected atoms, or `null` if the
- * selection is collapsed
- * @method EditableMathlist#getSelectedAtoms
- * @private
- */
-
-
-EditableMathlist.prototype.getSelectedAtoms = function () {
-  if (this.isCollapsed()) return null;
-  var result = [];
-  var siblings = this.siblings();
-  var firstOffset = this.startOffset() + 1;
-  var lastOffset = this.endOffset() + 1;
-
-  for (var i = firstOffset; i < lastOffset; i++) {
-    if (siblings[i] && siblings[i].type !== 'first') result.push(siblings[i]);
-  }
-
-  return result;
-};
-/**
- * Return a `{start:, end:}` for the offsets of the command around the insertion
- * point, or null.
- * - `start` is the first atom which is of type `command`
- * - `end` is after the last atom of type `command`
- * @return {object}
- * @method EditableMathlist#commandOffsets
- * @private
- */
-
-
-EditableMathlist.prototype.commandOffsets = function () {
-  var siblings = this.siblings();
-  if (siblings.length <= 1) return null;
-  var start = Math.min(this.endOffset(), siblings.length - 1); // let start = Math.max(0, this.endOffset());
-
-  if (siblings[start].type !== 'command') return null;
-
-  while (start > 0 && siblings[start].type === 'command') {
-    start -= 1;
-  }
-
-  var end = this.startOffset() + 1;
-
-  while (end <= siblings.length - 1 && siblings[end].type === 'command') {
-    end += 1;
-  }
-
-  if (end > start) {
-    return {
-      start: start + 1,
-      end: end
-    };
-  }
-
-  return null;
-};
-/**
- * @return {string}
- * @method EditableMathlist#extractCommandStringAroundInsertionPoint
- * @private
- */
-
-
-EditableMathlist.prototype.extractCommandStringAroundInsertionPoint = function (beforeInsertionPointOnly) {
-  var result = '';
-  var command = this.commandOffsets();
-
-  if (command) {
-    var end = beforeInsertionPointOnly ? this.anchorOffset() + 1 : command.end;
-    var siblings = this.siblings();
-
-    for (var i = command.start; i < end; i++) {
-      // All these atoms are 'command' atom with a body that's
-      // a single character
-      result += siblings[i].body || '';
-    }
-  }
-
-  return result;
-};
-/**
- * @param {boolean} value If true, decorate the command string around the
- * insertion point with an error indicator (red dotted underline). If false,
- * remove it.
- * @method EditableMathlist#decorateCommandStringAroundInsertionPoint
- * @private
- */
-
-
-EditableMathlist.prototype.decorateCommandStringAroundInsertionPoint = function (value) {
-  var command = this.commandOffsets();
-
-  if (command) {
-    var siblings = this.siblings();
-
-    for (var i = command.start; i < command.end; i++) {
-      siblings[i].error = value;
-    }
-  }
-};
-/**
- * @return {string}
- * @method EditableMathlist#commitCommandStringBeforeInsertionPoint
- * @private
- */
-
-
-EditableMathlist.prototype.commitCommandStringBeforeInsertionPoint = function () {
-  var command = this.commandOffsets();
-
-  if (command) {
-    var siblings = this.siblings();
-    var anchorOffset = this.anchorOffset() + 1;
-
-    for (var i = command.start; i < anchorOffset; i++) {
-      if (siblings[i]) {
-        siblings[i].suggestion = false;
-      }
-    }
-  }
-};
-
-EditableMathlist.prototype.spliceCommandStringAroundInsertionPoint = function (mathlist) {
-  var command = this.commandOffsets();
-
-  if (command) {
-    // Dispatch notifications
-    this.contentWillChange();
-
-    if (!mathlist) {
-      this.siblings().splice(command.start, command.end - command.start);
-      this.setSelection(command.start - 1, 0);
-    } else {
-      Array.prototype.splice.apply(this.siblings(), [command.start, command.end - command.start].concat(mathlist));
-      var newPlaceholders = [];
-      var _iteratorNormalCompletion5 = true;
-      var _didIteratorError5 = false;
-      var _iteratorError5 = undefined;
-
-      try {
-        for (var _iterator5 = mathlist[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
-          var atom = _step5.value;
-          newPlaceholders = newPlaceholders.concat(atom.filter(function (atom) {
-            return atom.type === 'placeholder';
-          }));
-        }
-      } catch (err) {
-        _didIteratorError5 = true;
-        _iteratorError5 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
-            _iterator5.return();
-          }
-        } finally {
-          if (_didIteratorError5) {
-            throw _iteratorError5;
-          }
-        }
-      }
-
-      this.setExtent(0); // Set the anchor offset to a reasonable value that can be used by
-      // leap(). In particular, the current offset value may be invalid
-      // if the length of the mathlist is shorter than the name of the command
-
-      this.path[this.path.length - 1].offset = command.start - 1;
-
-      if (newPlaceholders.length === 0 || !this.leap(+1, false)) {
-        this.setSelection(command.start + mathlist.length - 1);
-      }
-    } // Dispatch notifications
-
-
-    this.contentDidChange();
-  }
-};
-
-function removeCommandStringFromAtom(atom) {
-  if (!atom) return;
-
-  if (Array.isArray(atom)) {
-    for (var i = atom.length - 1; i >= 0; i--) {
-      if (atom[i].type === 'command') {
-        atom.splice(i, 1); // i += 1;
-      } else {
-        removeCommandStringFromAtom(atom[i]);
-      }
-    }
-
-    return;
-  }
-
-  removeCommandStringFromAtom(atom.body);
-  removeCommandStringFromAtom(atom.superscript);
-  removeCommandStringFromAtom(atom.subscript);
-  removeCommandStringFromAtom(atom.underscript);
-  removeCommandStringFromAtom(atom.overscript);
-  removeCommandStringFromAtom(atom.numer);
-  removeCommandStringFromAtom(atom.denom);
-  removeCommandStringFromAtom(atom.index);
-
-  if (atom.array) {
-    for (var j = arrayCellCount(atom.array); j >= 0; j--) {
-      removeCommandStringFromAtom(arrayCell(atom.array, j));
-    }
-  }
-}
-
-EditableMathlist.prototype.removeCommandString = function () {
-  this.contentWillChange();
-  var contentWasChanging = this.suppressChangeNotifications;
-  this.suppressChangeNotifications = true;
-  removeCommandStringFromAtom(this.root.body);
-  this.suppressChangeNotifications = contentWasChanging;
-  this.contentDidChange();
-};
-/**
- * @return {string}
- * @method EditableMathlist#extractArgBeforeInsertionPoint
- * @private
- */
-
-
-EditableMathlist.prototype.extractArgBeforeInsertionPoint = function () {
-  var siblings = this.siblings();
-  if (siblings.length <= 1) return [];
-  var result = [];
-  var i = this.startOffset();
-
-  if (siblings[i].mode === 'text') {
-    while (i >= 1 && siblings[i].mode === 'text') {
-      result.unshift(siblings[i]);
-      i--;
-    }
-  } else {
-    while (i >= 1 && /^(mord|surd|msubsup|leftright|mop)$/.test(siblings[i].type)) {
-      result.unshift(siblings[i]);
-      i--;
-    }
-  }
-
-  return result;
-}; // 3 + 4(sin(x) > 3 + 4[sin(x)]/[ __ ]
-// Add a frac inside a partial leftright: remove leftright
-// When smartfence, add paren at end of expr
-// a+3x=1 insert after + => paren before =
-
-/**
- * @param {number} offset
- * - &gt;0: index of the child in the group where the selection will start from
- * - <0: index counting from the end of the group
- * @param {number|string} [extent=0] Number of items in the selection:
- * - 0: collapsed selection, single insertion point
- * - &gt;0: selection extending _after_ the offset
- * - <0: selection extending _before_ the offset
- * - `'end'`: selection extending to the end of the group
- * - `'start'`: selection extending to the beginning of the group
- * @param {string} relation e.g. `'body'`, `'superscript'`, etc...
- * @return {boolean} False if the relation is invalid (no such children)
- * @method EditableMathlist#setSelection
- * @private
- */
-
-
-EditableMathlist.prototype.setSelection = function (offset, extent, relation) {
-  offset = offset || 0;
-  extent = extent || 0; // If no relation ("children", "superscript", etc...) is specified
-  // keep the current relation
-
-  var oldRelation = this.path[this.path.length - 1].relation;
-  if (!relation) relation = oldRelation; // If the relation is invalid, exit and return false
-
-  var parent = this.parent();
-  if (!parent && relation !== 'body') return false;
-  var arrayRelation = relation.startsWith('cell');
-  if (!arrayRelation && !parent[relation] || arrayRelation && !parent.array) return false;
-  var relationChanged = relation !== oldRelation; // Temporarily set the path to the potentially new relation to get the
-  // right siblings
-
-  this.path[this.path.length - 1].relation = relation; // Invoking siblings() will have the side-effect of adding the 'first'
-  // atom if necessary
-  // ... and we want the siblings with the potentially new relation...
-
-  var siblings = this.siblings();
-  var siblingsCount = siblings.length; // Restore the relation
-
-  this.path[this.path.length - 1].relation = oldRelation;
-  var oldExtent = this.extent;
-
-  if (extent === 'end') {
-    extent = siblingsCount - offset - 1;
-  } else if (extent === 'start') {
-    extent = -offset;
-  }
-
-  this.setExtent(extent);
-  var extentChanged = this.extent !== oldExtent;
-  this.setExtent(oldExtent); // Calculate the new offset, and make sure it is in range
-  // (setSelection can be called with an offset that greater than
-  // the number of children, for example when doing an up from a
-  // numerator to a smaller denominator, e.g. "1/(x+1)".
-
-  if (offset < 0) {
-    offset = siblingsCount + offset;
-  }
-
-  offset = Math.max(0, Math.min(offset, siblingsCount - 1));
-  var oldOffset = this.path[this.path.length - 1].offset;
-  var offsetChanged = oldOffset !== offset;
-
-  if (relationChanged || offsetChanged || extentChanged) {
-    if (relationChanged) {
-      this.adjustPlaceholder();
-    }
-
-    this.selectionWillChange();
-    this.path[this.path.length - 1].relation = relation;
-    this.path[this.path.length - 1].offset = offset;
-    this.setExtent(extent);
-    this.selectionDidChange();
-  }
-
-  return true;
-};
-/**
- * Move the anchor to the next permissible atom
- * @method EditableMathlist#next
- * @private
- */
-
-
-EditableMathlist.prototype.next = function (options) {
-  options = options || {};
-  var NEXT_RELATION = {
-    'body': 'numer',
-    'numer': 'denom',
-    'denom': 'index',
-    'index': 'overscript',
-    'overscript': 'underscript',
-    'underscript': 'subscript',
-    'subscript': 'superscript'
-  };
-
-  if (this.anchorOffset() === this.siblings().length - 1) {
-    this.adjustPlaceholder(); // We've reached the end of this list.
-    // Is there another list to consider?
-
-    var relation = NEXT_RELATION[this.relation()];
-    var parent = this.parent();
-
-    while (relation && !parent[relation]) {
-      relation = NEXT_RELATION[relation];
-    } // We found a new relation/set of siblings...
-
-
-    if (relation) {
-      this.setSelection(0, 0, relation);
-      return;
-    } // No more siblings, check if we have a sibling cell in an array
-
-
-    if (this.parent().array) {
-      var maxCellCount = arrayCellCount(this.parent().array);
-      var cellIndex = parseInt(this.relation().match(/cell([0-9]*)$/)[1]) + 1;
-
-      while (cellIndex < maxCellCount) {
-        var cell = arrayCell(this.parent().array, cellIndex); // Some cells could be null (sparse array), so skip them
-
-        if (cell && this.setSelection(0, 0, 'cell' + cellIndex)) {
-          this.selectionDidChange();
-          return;
-        }
-
-        cellIndex += 1;
-      }
-    } // No more siblings, go up to the parent.
-
-
-    if (this.path.length === 1) {
-      // Invoke handler and perform default if they return true.
-      if (this.suppressChangeNotifications || !this.config.onMoveOutOf || this.config.onMoveOutOf(this, 'forward')) {
-        // We're at the root, so loop back
-        this.path[0].offset = 0;
-      }
-    } else {
-      // We've reached the end of the siblings. If we're a group
-      // with skipBoundary, when exiting, move one past the next atom
-      var skip = !options.iterateAll && this.parent().skipBoundary;
-      this.path.pop();
-
-      if (skip) {
-        this.next(options);
-      }
-    }
-
-    this.selectionDidChange();
-    return;
-  } // Still some siblings to go through. Move on to the next one.
-
-
-  this.setSelection(this.anchorOffset() + 1);
-  var anchor = this.anchor(); // Dive into its components, if the new anchor is a compound atom, 
-  // and allows capture of the selection by its sub-elements
-
-  if (anchor && !anchor.captureSelection) {
-    var _relation;
-
-    if (anchor.array) {
-      // Find the first non-empty cell in this array
-      var _cellIndex = 0;
-      _relation = '';
-
-      var _maxCellCount = arrayCellCount(anchor.array);
-
-      while (!_relation && _cellIndex < _maxCellCount) {
-        // Some cells could be null (sparse array), so skip them
-        if (arrayCell(anchor.array, _cellIndex)) {
-          _relation = 'cell' + _cellIndex.toString();
-        }
-
-        _cellIndex += 1;
-      }
-
-      console.assert(_relation);
-      this.path.push({
-        relation: _relation,
-        offset: 0
-      });
-      this.setSelection(0, 0, _relation);
-      return;
-    }
-
-    _relation = 'body';
-
-    while (_relation) {
-      if (Array.isArray(anchor[_relation])) {
-        this.path.push({
-          relation: _relation,
-          offset: 0
-        });
-        this.insertFirstAtom();
-        if (!options.iterateAll && anchor.skipBoundary) this.next(options);
-        return;
-      }
-
-      _relation = NEXT_RELATION[_relation];
-    }
-  }
-};
-
-EditableMathlist.prototype.previous = function (options) {
-  options = options || {};
-  var PREVIOUS_RELATION = {
-    'numer': 'body',
-    'denom': 'numer',
-    'index': 'denom',
-    'overscript': 'index',
-    'underscript': 'overscript',
-    'subscript': 'underscript',
-    'superscript': 'subscript'
-  };
-
-  if (!options.iterateAll && this.anchorOffset() === 1 && this.parent() && this.parent().skipBoundary) {
-    this.setSelection(0);
-  }
-
-  if (this.anchorOffset() < 1) {
-    // We've reached the first of these siblings.
-    // Is there another set of siblings to consider?
-    var relation = PREVIOUS_RELATION[this.relation()];
-
-    while (relation && !this.setSelection(-1, 0, relation)) {
-      relation = PREVIOUS_RELATION[relation];
-    } // Ignore the body of the subsup scaffolding and of 
-    // 'mop' atoms (for example, \sum): their body is not editable.
-
-
-    var parentType = this.parent() ? this.parent().type : 'none';
-
-    if (relation === 'body' && (parentType === 'msubsup' || parentType === 'mop')) {
-      relation = null;
-    } // We found a new relation/set of siblings...
-
-
-    if (relation) return;
-    this.adjustPlaceholder();
-    this.selectionWillChange(); // No more siblings, check if we have a sibling cell in an array
-
-    if (this.relation().startsWith('cell')) {
-      var cellIndex = parseInt(this.relation().match(/cell([0-9]*)$/)[1]) - 1;
-
-      while (cellIndex >= 0) {
-        var cell = arrayCell(this.parent().array, cellIndex);
-
-        if (cell && this.setSelection(-1, 0, 'cell' + cellIndex)) {
-          this.selectionDidChange();
-          return;
-        }
-
-        cellIndex -= 1;
-      }
-    } // No more siblings, go up to the parent.
-
-
-    if (this.path.length === 1) {
-      // Invoke handler and perform default if they return true.
-      if (this.suppressChangeNotifications || !this.config.onMoveOutOf || this.config.onMoveOutOf.bind(this)(-1)) {
-        // We're at the root, so loop back
-        this.path[0].offset = this.root.body.length - 1;
-      }
-    } else {
-      this.path.pop();
-      this.setSelection(this.anchorOffset() - 1);
-    }
-
-    this.selectionDidChange();
-    return;
-  } // If the new anchor is a compound atom, dive into its components
-
-
-  var anchor = this.anchor(); // Only dive in if the atom allows capture of the selection by
-  // its sub-elements
-
-  if (!anchor.captureSelection) {
-    var _relation2;
-
-    if (anchor.array) {
-      _relation2 = '';
-      var maxCellCount = arrayCellCount(anchor.array);
-
-      var _cellIndex2 = maxCellCount - 1;
-
-      while (!_relation2 && _cellIndex2 < maxCellCount) {
-        // Some cells could be null (sparse array), so skip them
-        if (arrayCell(anchor.array, _cellIndex2)) {
-          _relation2 = 'cell' + _cellIndex2.toString();
-        }
-
-        _cellIndex2 -= 1;
-      }
-
-      _cellIndex2 += 1;
-      console.assert(_relation2);
-      this.path.push({
-        relation: _relation2,
-        offset: arrayCell(anchor.array, _cellIndex2).length - 1
-      });
-      this.setSelection(-1, 0, _relation2);
-      return;
-    }
-
-    _relation2 = 'superscript';
-
-    while (_relation2) {
-      if (Array.isArray(anchor[_relation2])) {
-        this.path.push({
-          relation: _relation2,
-          offset: anchor[_relation2].length - 1
-        });
-        this.setSelection(-1, 0, _relation2);
-        return;
-      }
-
-      _relation2 = PREVIOUS_RELATION[_relation2];
-    }
-  } // There wasn't a component to navigate to, so...
-  // Still some siblings to go through: move on to the previous one.
-
-
-  this.setSelection(this.anchorOffset() - 1);
-
-  if (!options.iterateAll && this.sibling(0) && this.sibling(0).skipBoundary) {
-    this.previous(options);
-  }
-};
-
-EditableMathlist.prototype.move = function (dist, options) {
-  options = options || {
-    extend: false
-  };
-  var extend = options.extend || false;
-  this.removeSuggestion();
-
-  if (extend) {
-    this.extend(dist, options);
-  } else {
-    var oldPath = clone(this); // const previousParent = this.parent();
-    // const previousRelation = this.relation();
-    // const previousSiblings = this.siblings();
-
-    if (dist > 0) {
-      if (this.collapseForward()) dist--;
-
-      while (dist > 0) {
-        this.next();
-        dist--;
-      }
-    } else if (dist < 0) {
-      if (this.collapseBackward()) dist++;
-
-      while (dist !== 0) {
-        this.previous();
-        dist++;
-      }
-    } // ** @todo: can't do that without updating the path.
-    // If the siblings list we left was empty, remove the relation
-    // if (previousSiblings.length <= 1) {
-    //     if (['superscript', 'subscript', 'index'].includes(previousRelation)) {
-    //         previousParent[previousRelation] = null;
-    //     }
-    // }
-
-
-    this._announce('move', oldPath);
-  }
-};
-
-EditableMathlist.prototype.up = function (options) {
-  options = options || {
-    extend: false
-  };
-  var extend = options.extend || false;
-  this.collapseBackward();
-  var relation = this.relation();
-
-  if (relation === 'denom') {
-    if (extend) {
-      this.selectionWillChange();
-      this.path.pop();
-      this.path[this.path.length - 1].offset -= 1;
-      this.setExtent(1);
-      this.selectionDidChange();
-    } else {
-      this.setSelection(this.anchorOffset(), 0, 'numer');
-    }
-
-    this._announce('moveUp');
-  } else if (this.parent().array) {
-    // In an array
-    var colRow = arrayColRow(this.parent().array, relation);
-    colRow = arrayAdjustRow(this.parent().array, colRow, -1);
-
-    if (colRow && arrayCell(colRow)) {
-      this.path[this.path.length - 1].relation = 'cell' + arrayIndex(this.parent().array, colRow);
-      this.setSelection(this.anchorOffset());
-
-      this._announce('moveUp');
-    } else {
-      this.move(-1, options);
-    }
-  } else {
-    this._announce('line');
-  }
-};
-
-EditableMathlist.prototype.down = function (options) {
-  options = options || {
-    extend: false
-  };
-  var extend = options.extend || false;
-  this.collapseForward();
-  var relation = this.relation();
-
-  if (relation === 'numer') {
-    if (extend) {
-      this.selectionWillChange();
-      this.path.pop();
-      this.path[this.path.length - 1].offset -= 1;
-      this.setExtent(1);
-      this.selectionDidChange();
-    } else {
-      this.setSelection(this.anchorOffset(), 0, 'denom');
-    }
-
-    this._announce('moveDown');
-  } else if (this.parent().array) {
-    // In an array
-    var colRow = arrayColRow(this.parent().array, relation);
-    colRow = arrayAdjustRow(this.parent().array, colRow, +1);
-
-    if (colRow && arrayCell(colRow)) {
-      this.path[this.path.length - 1].relation = 'cell' + arrayIndex(this.parent().array, colRow);
-      this.setSelection(this.anchorOffset());
-
-      this._announce('moveDown');
-    } else {
-      this.move(+1, options);
-    }
-  } else {
-    this._announce('line');
-  }
-};
-/**
- * Change the range of the selection
- *
- * @param {number} dist - The change (positive or negative) to the extent
- * of the selection. The anchor point does not move.
- * @method EditableMathlist#extend
- * @private
- */
-
-
-EditableMathlist.prototype.extend = function (dist) {
-  var offset = this.path[this.path.length - 1].offset;
-  var extent = 0;
-  var oldPath = clone(this);
-  extent = this.extent + dist;
-  var newFocusOffset = offset + extent;
-
-  if (newFocusOffset < 0 && extent !== 0) {
-    // We're trying to extend beyond the first element.
-    // Go up to the parent.
-    if (this.path.length > 1) {
-      this.selectionWillChange();
-      this.path.pop(); // this.path[this.path.length - 1].offset -= 1;
-
-      this.setExtent(-1);
-      this.selectionDidChange();
-
-      this._announce('move', oldPath);
-
-      return;
-    } // @todo exit left extend
-    // If we're at the very beginning, nothing to do.
-
-
-    offset = this.path[this.path.length - 1].offset;
-    extent = this.extent;
-  } else if (newFocusOffset >= this.siblings().length) {
-    // We're trying to extend beyond the last element.
-    // Go up to the parent
-    if (this.path.length > 1) {
-      this.selectionWillChange();
-      this.path.pop();
-      this.path[this.path.length - 1].offset -= 1;
-      this.setExtent(1);
-      this.selectionDidChange();
-
-      this._announce('move', oldPath);
-
-      return;
-    } // @todo exit right extend
-
-
-    if (this.isCollapsed()) {
-      offset -= 1;
-    }
-
-    extent -= 1;
-  }
-
-  this.setSelection(offset, extent);
-
-  this._announce('move', oldPath);
-};
-/**
- * Move the selection focus to the next/previous point of interest.
- * A point of interest is an atom of a different type (mbin, mord, etc...)
- * than the current focus.
- * If `extend` is true, the selection will be extended. Otherwise, it is
- * collapsed, then moved.
- * @param {number} dir +1 to skip forward, -1 to skip back
- * @param {Object.<string, any>} options
- * @method EditableMathlist#skip
- * @private
- */
-
-
-EditableMathlist.prototype.skip = function (dir, options) {
-  options = options || {
-    extend: false
-  };
-  var extend = options.extend || false;
-  dir = dir < 0 ? -1 : +1;
-  var oldPath = clone(this);
-  var siblings = this.siblings();
-  var focus = this.focusOffset();
-  var offset = focus + dir;
-  if (extend) offset = Math.min(Math.max(0, offset), siblings.length - 1);
-
-  if (offset < 0 || offset >= siblings.length) {
-    // If we've reached the end, just move out of the list
-    this.move(dir, options);
-    return;
-  }
-
-  if (siblings[offset] && siblings[offset].mode === 'text') {
-    // We're in a text zone, skip word by word
-    offset = this.wordBoundaryOffset(offset, dir);
-
-    if (offset < 0 && !extend) {
-      this.setSelection(0);
-      return;
-    }
-
-    if (offset > siblings.length) {
-      this.setSelection(siblings.length - 1);
-      this.move(dir, options);
-      return;
-    }
-  } else {
-    var type = siblings[offset] ? siblings[offset].type : '';
-
-    if (type === 'mopen' && dir > 0 || type === 'mclose' && dir < 0) {
-      // We're right before (or after) an opening (or closing)
-      // fence. Skip to the balanced element (in level, but not necessarily in
-      // fence symbol).
-      var level = type === 'mopen' ? 1 : -1;
-      offset += dir > 0 ? 1 : -1;
-
-      while (offset >= 0 && offset < siblings.length && level !== 0) {
-        if (siblings[offset].type === 'mopen') {
-          level += 1;
-        } else if (siblings[offset].type === 'mclose') {
-          level -= 1;
-        }
-
-        offset += dir;
-      }
-
-      if (level !== 0) {
-        // We did not find a balanced element. Just move a little.
-        offset = focus + dir;
-      }
-
-      if (dir > 0) offset = offset - 1;
-    } else {
-      while (siblings[offset] && siblings[offset].mode === 'math' && siblings[offset].type === type) {
-        offset += dir;
-      }
-
-      offset -= dir > 0 ? 1 : 0;
-    }
-  }
-
-  if (extend) {
-    var anchor = this.anchorOffset();
-    this.setSelection(anchor, offset - anchor);
-  } else {
-    this.setSelection(offset);
-  }
-
-  this._announce('move', oldPath);
-};
-/**
- * Move to the next/previous expression boundary
- * @method EditableMathlist#jump
- * @private
- */
-
-
-EditableMathlist.prototype.jump = function (dir, options) {
-  options = options || {
-    extend: false
-  };
-  var extend = options.extend || false;
-  dir = dir < 0 ? -1 : +1;
-  var siblings = this.siblings();
-  var focus = this.focusOffset();
-  if (dir > 0) focus = Math.min(focus + 1, siblings.length - 1);
-  var offset = dir < 0 ? 0 : siblings.length - 1;
-
-  if (extend) {
-    this.extend(offset - focus);
-  } else {
-    this.move(offset - focus);
-  }
-};
-
-EditableMathlist.prototype.jumpToMathFieldBoundary = function (dir, options) {
-  options = options || {
-    extend: false
-  };
-  var extend = options.extend || false;
-  dir = dir || +1;
-  dir = dir < 0 ? -1 : +1;
-  var oldPath = clone(this);
-  var path = [{
-    relation: "body",
-    offset: this.path[0].offset
-  }];
-  var extent;
-
-  if (!extend) {
-    // Change the anchor to the end/start of the root expression
-    path[0].offset = dir < 0 ? 0 : this.root.body.length - 1;
-    extent = 0;
-  } else {
-    // Don't change the anchor, but update the extent
-    if (dir < 0) {
-      if (path[0].offset > 0) {
-        extent = -path[0].offset;
-      } else {// @todo exit left extend
-      }
-    } else {
-      if (path[0].offset < this.siblings().length - 1) {
-        extent = this.siblings().length - 1 - path[0].offset;
-      } else {// @todo exit right extend
-      }
-    }
-  }
-
-  this.setPath(path, extent);
-
-  this._announce('move', oldPath);
-};
-/**
- * Move to the next/previous placeholder or empty child list.
- * @return {boolean} False if no placeholder found and did not move
- * @method EditableMathlist#leap
- * @private
- */
-
-
-EditableMathlist.prototype.leap = function (dir, callHandler) {
-  var _this = this;
-
-  dir = dir || +1;
-  dir = dir < 0 ? -1 : +1;
-  callHandler = callHandler || true;
-  var savedSuppressChangeNotifications = this.suppressChangeNotifications;
-  this.suppressChangeNotifications = true;
-  var oldPath = clone(this);
-  var oldExtent = this.extent;
-  this.move(dir);
-
-  if (this.anchor().type === 'placeholder') {
-    // If we're already at a placeholder, move by one more (the placeholder
-    // is right after the insertion point)
-    this.move(dir);
-  } // Candidate placeholders are atom of type 'placeholder'
-  // or empty children list (except for the root: if the root is empty,
-  // it is not a valid placeholder)
-
-
-  var placeholders = this.filter(function (path, atom) {
-    return atom.type === 'placeholder' || path.length > 1 && _this.siblings().length === 1;
-  }, dir); // If no placeholders were found, call handler or move to the next focusable
-  // element in the document
-
-  if (placeholders.length === 0) {
-    // Restore the selection
-    this.setPath(oldPath, oldExtent);
-
-    if (callHandler) {
-      if (this.config.onTabOutOf) {
-        this.config.onTabOutOf(this.target, dir > 0 ? 'forward' : 'backward');
-      } else if (document.activeElement) {
-        var focussableElements = "a[href]:not([disabled]),\n                    button:not([disabled]),\n                    textarea:not([disabled]),\n                    input[type=text]:not([disabled]),\n                    select:not([disabled]),\n                    [contentEditable=\"true\"],\n                    [tabindex]:not([disabled]):not([tabindex=\"-1\"])"; // Get all the potentially focusable elements
-        // and exclude (1) those that are invisible (width and height = 0)
-        // (2) not the active element
-        // (3) the ancestor of the active element
-
-        var focussable = Array.prototype.filter.call(document.querySelectorAll(focussableElements), function (element) {
-          return (element.offsetWidth > 0 || element.offsetHeight > 0) && !element.contains(document.activeElement) || element === document.activeElement;
-        });
-        var index = focussable.indexOf(document.activeElement) + dir;
-        if (index < 0) index = focussable.length - 1;
-        if (index >= focussable.length) index = 0;
-        focussable[index].focus();
-      }
-    }
-
-    return false;
-  } // Set the selection to the next placeholder
-
-
-  this.selectionWillChange();
-  this.setPath(placeholders[0]);
-  if (this.anchor().type === 'placeholder') this.setExtent(-1);
-
-  this._announce('move', oldPath);
-
-  this.selectionDidChange();
-  this.suppressChangeNotifications = savedSuppressChangeNotifications;
-  return true;
-};
-
-EditableMathlist.prototype.anchorMode = function () {
-  var anchor = this.isCollapsed() ? this.anchor() : this.sibling(1);
-  var result;
-
-  if (anchor) {
-    if (anchor.type === 'commandliteral' || anchor.type === 'command') return 'command';
-    result = anchor.mode;
-  }
-
-  var i = 1;
-  var ancestor = this.ancestor(i);
-
-  while (!result && ancestor) {
-    if (ancestor) result = ancestor.mode;
-    i += 1;
-    ancestor = this.ancestor(i);
-  }
-
-  return result;
-};
-
-EditableMathlist.prototype.anchorStyle = function () {
-  var anchor = this.isCollapsed() ? this.anchor() : this.sibling(1);
-  var result;
-
-  if (anchor && anchor.type !== 'first') {
-    if (anchor.type === 'commandliteral' || anchor.type === 'command') return {};
-    result = {
-      color: anchor.color,
-      backgroundColor: anchor.backgroundColor,
-      fontFamily: anchor.fontFamily,
-      fontShape: anchor.fontShape,
-      fontSeries: anchor.fontSeries,
-      fontSize: anchor.fontSize
-    };
-  }
-
-  var i = 1;
-  var ancestor = this.ancestor(i);
-
-  while (!result && ancestor) {
-    if (ancestor) {
-      result = {
-        color: ancestor.color,
-        backgroundColor: ancestor.backgroundColor,
-        fontFamily: ancestor.fontFamily,
-        fontShape: ancestor.fontShape,
-        fontSeries: ancestor.fontSeries,
-        fontSize: ancestor.fontSize
-      };
-    }
-
-    i += 1;
-    ancestor = this.ancestor(i);
-  }
-
-  return result;
-};
-
-function removeParen(list) {
-  if (!list) return undefined;
-
-  if (list.length === 1 && list[0].type === 'leftright' && list[0].leftDelim === '(') {
-    list = list[0].body;
-  }
-
-  return list;
-}
-/**
- * If it's a fraction with a parenthesized numerator or denominator
- * remove the parentheses
- * */
-
-
-EditableMathlist.prototype.simplifyParen = function (atoms) {
-  var _this2 = this;
-
-  if (atoms && this.config.removeExtraneousParentheses) {
-    for (var i = 0; atoms[i]; i++) {
-      if (atoms[i].type === 'leftright' && atoms[i].leftDelim === '(') {
-        if (Array.isArray(atoms[i].body)) {
-          var genFracCount = 0;
-          var genFracIndex = 0;
-          var nonGenFracCount = 0;
-
-          for (var j = 0; atoms[i].body; j++) {
-            if (atoms[i].body[j].type === 'genfrac') {
-              genFracCount++;
-              genFracIndex = j;
-            }
-
-            if (atoms[i].body[j].type !== 'first') nonGenFracCount++;
-          }
-
-          if (nonGenFracCount === 0 && genFracCount === 1) {
-            // This is a single frac inside a leftright: remove the leftright
-            atoms[i] = atoms[i].body[genFracIndex];
-          }
-        }
-      }
-    }
-
-    atoms.forEach(function (atom) {
-      if (atom.type === 'genfrac') {
-        _this2.simplifyParen(atom.numer);
-
-        _this2.simplifyParen(atom.denom);
-
-        atom.numer = removeParen(atom.numer);
-        atom.denom = removeParen(atom.denom);
-      }
-
-      if (atom.superscript) {
-        _this2.simplifyParen(atom.superscript);
-
-        atom.superscript = removeParen(atom.superscript);
-      }
-
-      if (atom.subscript) {
-        _this2.simplifyParen(atom.subscript);
-
-        atom.subscript = removeParen(atom.subscript);
-      }
-
-      if (atom.underscript) {
-        _this2.simplifyParen(atom.underscript);
-
-        atom.underscript = removeParen(atom.underscript);
-      }
-
-      if (atom.overscript) {
-        _this2.simplifyParen(atom.overscript);
-
-        atom.overscript = removeParen(atom.overscript);
-      }
-
-      if (atom.index) {
-        _this2.simplifyParen(atom.index);
-
-        atom.index = removeParen(atom.index);
-      }
-
-      if (atom.type === 'surd') {
-        _this2.simplifyParen(atom.body);
-
-        atom.body = removeParen(atom.body);
-      } else if (atom.body && Array.isArray(atom.body)) {
-        _this2.simplifyParen(atom.body);
-      }
-
-      if (atom.array) {
-        for (var _i4 = arrayCellCount(atom.array); _i4 >= 0; _i4--) {
-          _this2.simplifyParen(arrayCell(atom.array, _i4));
-        }
-      }
-    });
-  }
-};
-
-function applyStyleToUnstyledAtoms(atom, style) {
-  if (!atom || !style) return;
-
-  if (Array.isArray(atom)) {
-    // Apply styling options to each atom
-    atom.forEach(function (x) {
-      return applyStyleToUnstyledAtoms(x, style);
-    });
-  } else if (_typeof(atom) === 'object') {
-    if (!atom.color && !atom.backgroundColor && !atom.fontFamily && !atom.fontShape && !atom.fontSeries && !atom.fontSize) {
-      atom.applyStyle(style);
-      applyStyleToUnstyledAtoms(atom.body, style);
-      applyStyleToUnstyledAtoms(atom.numer, style);
-      applyStyleToUnstyledAtoms(atom.denom, style);
-      applyStyleToUnstyledAtoms(atom.index, style);
-      applyStyleToUnstyledAtoms(atom.overscript, style);
-      applyStyleToUnstyledAtoms(atom.underscript, style);
-      applyStyleToUnstyledAtoms(atom.subscript, style);
-      applyStyleToUnstyledAtoms(atom.superscript, style);
-    }
-  }
-}
-/**
- * @param {string} s
- * @param {Object.<string, any>} options
- * @param {string} options.insertionMode -
- *    * 'replaceSelection' (default)
- *    * 'replaceAll'
- *    * 'insertBefore'
- *    * 'insertAfter'
- *
- * @param {string} options.selectionMode - Describes where the selection
- * will be after the insertion:
- *    * `'placeholder'`: the selection will be the first available placeholder
- * in the item that has been inserted) (default)
- *    * `'after'`: the selection will be an insertion point after the item that
- * has been inserted),
- *    * `'before'`: the selection will be an insertion point before
- * the item that has been inserted) or 'item' (the item that was inserted will
- * be selected).
- *
- * @param {string} options.placeholder - The placeholder string, if necessary
- *
- * @param {string} options.format - The format of the string `s`:
- *    * `'auto'`: the string is interpreted as a latex fragment or command or 
- * ASCIIMath (default)
- *    * `'latex'`: the string is interpreted strictly as a latex fragment
- *
- * @param {string} options.smartFence - If true, promote plain fences, e.g. `(`,
- * as `\left...\right` or `\mleft...\mright`
- *
- * @param {boolean} options.suppressChangeNotifications - If true, the
- * handlers for the contentWillChange, contentDidChange, selectionWillChange and
- * selectionDidChange notifications will not be invoked. Default `false`.
- * 
- * @param {object} options.style
- * 
- * @method EditableMathlist#insert
- */
-
-
-EditableMathlist.prototype.insert = function (s, options) {
-  options = options || {}; // Try to insert a smart fence.
-
-  if (options.smartFence && this._insertSmartFence(s, options.style)) {
-    return;
-  }
-
-  var suppressChangeNotifications = this.suppressChangeNotifications;
-
-  if (options.suppressChangeNotifications) {
-    this.suppressChangeNotifications = true;
-  } // Dispatch notifications
-
-
-  this.contentWillChange();
-  var contentWasChanging = this.suppressChangeNotifications;
-  this.suppressChangeNotifications = true;
-  if (!options.insertionMode) options.insertionMode = 'replaceSelection';
-  if (!options.selectionMode) options.selectionMode = 'placeholder';
-  if (!options.format) options.format = 'auto';
-  options.macros = options.macros || this.config.macros;
-  var anchorMode = options.mode || this.anchorMode();
-  var mathlist; // Save the content of the selection, if any
-
-  var args = [this.getSelectedAtoms()]; // If a placeholder was specified, use it
-
-  if (options.placeholder !== undefined) {
-    args['?'] = options.placeholder;
-  } // Delete any selected items
-
-
-  if (options.insertionMode === 'replaceSelection' && !this.isCollapsed()) {
-    this.delete_();
-  } else if (options.insertionMode === 'replaceAll') {
-    // Remove all the children of root, save for the 'first' atom
-    this.root.body.splice(1);
-    this.path = [{
-      relation: 'body',
-      offset: 0
-    }];
-    this.extent = 0;
-  } else if (options.insertionMode === 'insertBefore') {
-    this.collapseBackward();
-  } else if (options.insertionMode === 'insertAfter') {
-    this.collapseForward();
-  } // Delete any placeholders before or after the insertion point
-
-
-  var siblings = this.siblings();
-  var firstOffset = this.startOffset();
-
-  if (firstOffset + 1 < siblings.length && siblings[firstOffset + 1] && siblings[firstOffset + 1].type === 'placeholder') {
-    this.delete_(1);
-  } else if (firstOffset > 0 && siblings[firstOffset] && siblings[firstOffset].type === 'placeholder') {
-    this.delete_(-1);
-  }
-
-  if (anchorMode === 'math' && options.format === 'ASCIIMath') {
-    s = parseMathString(s, _objectSpread({}, this.config, {
-      format: 'ASCIIMath'
-    }));
-    mathlist = _parser.default.parseTokens(_lexer.default.tokenize(s), 'math', null, options.macros, false); // Simplify result.
-
-    this.simplifyParen(mathlist);
-  } else if (anchorMode !== 'text' && options.format === 'auto') {
-    if (anchorMode === 'command') {
-      // Short-circuit the tokenizer and parser if in command mode
-      mathlist = [];
-      var _iteratorNormalCompletion6 = true;
-      var _didIteratorError6 = false;
-      var _iteratorError6 = undefined;
-
-      try {
-        for (var _iterator6 = s[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
-          var c = _step6.value;
-
-          if (_definitions.default.COMMAND_MODE_CHARACTERS.test(c)) {
-            mathlist.push(new _mathAtom.default.MathAtom('command', 'command', c));
-          }
-        }
-      } catch (err) {
-        _didIteratorError6 = true;
-        _iteratorError6 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
-            _iterator6.return();
-          }
-        } finally {
-          if (_didIteratorError6) {
-            throw _iteratorError6;
-          }
-        }
-      }
-    } else if (s === "\x1B") {
-      // Insert an 'esc' character triggers the command mode
-      mathlist = [new _mathAtom.default.MathAtom('command', 'command', '\\')];
-    } else {
-      s = parseMathString(s, this.config);
-
-      if (args[0]) {
-        // There was a selection, we'll use it for #@
-        s = s.replace(/(^|[^\\])#@/g, '$1#0');
-      } else if (/(^|[^\\])#@/.test(s)) {
-        // If we're inserting a latex fragment that includes a #@ argument
-        // substitute the preceding `mord` or text mode atoms for it.
-        s = s.replace(/(^|[^\\])#@/g, '$1#0');
-        args[0] = this.extractArgBeforeInsertionPoint(); // Delete the implicit argument
-
-        this._deleteAtoms(-args[0].length); // If the implicit argument was empty, remove it from the args list.
-
-
-        if (Array.isArray(args[0]) && args[0].length === 0) args[0] = undefined;
-      } else {
-        // No selection, no 'mord' before. Let's make '#@' a placeholder.
-        s = s.replace(/(^|[^\\])#@/g, '$1#?');
-      }
-
-      mathlist = _parser.default.parseTokens(_lexer.default.tokenize(s), anchorMode, args, options.macros, options.smartFence); // Simplify result.
-
-      this.simplifyParen(mathlist);
-    }
-  } else if (options.format === 'latex') {
-    mathlist = _parser.default.parseTokens(_lexer.default.tokenize(s), anchorMode, args, options.macros, options.smartFence);
-  } else if (anchorMode === 'text' || options.format === 'text') {
-    // Map special TeX characters to alternatives
-    // Must do this one first, since other replacements include backslash
-    s = s.replace(/\\/g, '\\textbackslash ');
-    s = s.replace(/#/g, '\\#');
-    s = s.replace(/\$/g, '\\$');
-    s = s.replace(/%/g, '\\%');
-    s = s.replace(/&/g, '\\&'); // s = s.replace(/:/g, '\\colon');     // text colon?
-    // s = s.replace(/\[/g, '\\lbrack');
-    // s = s.replace(/]/g, '\\rbrack');
-
-    s = s.replace(/_/g, '\\_');
-    s = s.replace(/{/g, '\\textbraceleft ');
-    s = s.replace(/}/g, '\\textbraceright ');
-    s = s.replace(/\^/g, '\\textasciicircum ');
-    s = s.replace(/~/g, '\\textasciitilde ');
-    s = s.replace(/£/g, '\\textsterling ');
-    mathlist = _parser.default.parseTokens(_lexer.default.tokenize(s), 'text', args, options.macros, false);
-  } // Some atoms may already have a style (for example if there was an 
-  // argument, i.e. the selection, that this was applied to).
-  // So, don't apply style to atoms that are already styled, but *do* 
-  // apply it to newly created atoms that have no style yet.
-
-
-  applyStyleToUnstyledAtoms(mathlist, options.style); // Insert the mathlist at the position following the anchor
-
-  var parent = this.parent();
-
-  if (this.config.removeExtraneousParentheses && parent && parent.type === 'leftright' && parent.leftDelim === '(' && mathlist && mathlist.length === 1 && mathlist[0].type === 'genfrac') {
-    // If the insert is fraction inside a lefright, remove the leftright
-    this.path.pop();
-    this.siblings()[this.anchorOffset()] = mathlist[0];
-  } else {
-    Array.prototype.splice.apply(this.siblings(), [this.anchorOffset() + 1, 0].concat(mathlist));
-  } // If needed, make sure there's a first atom in the siblings list
-
-
-  this.insertFirstAtom(); // Prepare to dispatch notifications
-  // (for selection changes, then content change)
-
-  this.suppressChangeNotifications = contentWasChanging; // Update the anchor's location
-
-  if (options.selectionMode === 'placeholder') {
-    // Move to the next placeholder
-    var newPlaceholders = [];
-    var _iteratorNormalCompletion7 = true;
-    var _didIteratorError7 = false;
-    var _iteratorError7 = undefined;
-
-    try {
-      for (var _iterator7 = mathlist[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
-        var atom = _step7.value;
-        newPlaceholders = newPlaceholders.concat(atom.filter(function (atom) {
-          return atom.type === 'placeholder';
-        }));
-      }
-    } catch (err) {
-      _didIteratorError7 = true;
-      _iteratorError7 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
-          _iterator7.return();
-        }
-      } finally {
-        if (_didIteratorError7) {
-          throw _iteratorError7;
-        }
-      }
-    }
-
-    if (newPlaceholders.length === 0 || !this.leap(+1, false)) {
-      // No placeholder found, move to right after what we just inserted
-      this.setSelection(this.anchorOffset() + mathlist.length); // this.path[this.path.length - 1].offset += mathlist.length;
-    } else {
-      this._announce('move'); // should have placeholder selected
-
-    }
-  } else if (options.selectionMode === 'before') {// Do nothing: don't change the anchorOffset.
-  } else if (options.selectionMode === 'after') {
-    this.setSelection(this.anchorOffset() + mathlist.length);
-  } else if (options.selectionMode === 'item') {
-    this.setSelection(this.anchorOffset(), mathlist.length);
-  }
-
-  this.contentDidChange();
-  this.suppressChangeNotifications = suppressChangeNotifications;
-};
-/**
- * Insert a smart fence '(', '{', '[', etc...
- * If not handled (because `fence` wasn't a fence), return false.
- * @param {string} fence
- * @param {object} style
- * @return {boolean}
- */
-
-
-EditableMathlist.prototype._insertSmartFence = function (fence, style) {
-  var parent = this.parent(); // We're inserting a middle punctuation, for example as in {...|...}
-
-  if (parent.type === 'leftright' && parent.leftDelim !== '|') {
-    if (/\||\\vert|\\Vert|\\mvert|\\mid/.test(fence)) {
-      this.insert('\\,\\middle' + fence + '\\, ', {
-        mode: 'math',
-        format: 'latex',
-        style: style
-      });
-      return true;
-    }
-  }
-
-  if (fence === '{' || fence === '\\{') fence = '\\lbrace';
-  if (fence === '}' || fence === '\\}') fence = '\\rbrace';
-  if (fence === '[' || fence === '\\[') fence = '\\lbrack';
-  if (fence === ']' || fence === '\\]') fence = '\\rbrack';
-  var rDelim = _definitions.default.RIGHT_DELIM[fence];
-
-  if (rDelim && !(parent.type === 'leftright' && parent.leftDelim === '|')) {
-    // We have a valid open fence as input
-    var s = '';
-    var collapsed = this.isCollapsed() || this.anchor().type === 'placeholder';
-
-    if (this.sibling(0).isFunction) {
-      // We're before a function (e.g. `\sin`, or 'f'):  this is an 
-      // argument list. 
-      // Use `\mleft...\mright'.
-      s = '\\mleft' + fence + '\\mright';
-    } else {
-      s = '\\left' + fence + '\\right';
-    }
-
-    s += collapsed ? '?' : rDelim;
-    var content = [];
-
-    if (collapsed) {
-      // content = this.siblings().slice(this.anchorOffset() + 1);
-      content = this.siblings().splice(this.anchorOffset() + 1, this.siblings().length);
-    }
-
-    this.insert(s, {
-      mode: 'math',
-      format: 'latex',
-      style: style
-    });
-
-    if (collapsed) {
-      // Move everything that was after the anchor into the leftright
-      this.sibling(0).body = content;
-      this.move(-1);
-    }
-
-    return true;
-  } // We did not have a valid open fence. Maybe it's a close fence?
-
-
-  var lDelim;
-
-  for (var delim in _definitions.default.RIGHT_DELIM) {
-    if (_definitions.default.RIGHT_DELIM.hasOwnProperty(delim)) {
-      if (fence === _definitions.default.RIGHT_DELIM[delim]) lDelim = delim;
-    }
-  }
-
-  if (lDelim) {
-    // We found the matching open fence, so it was a valid close fence.
-    // Note that `lDelim` may not match `fence`. That's OK.
-    // If we're the last atom inside a 'leftright',
-    // update the parent
-    if (parent && parent.type === 'leftright' && this.endOffset() === this.siblings().length - 1) {
-      this.contentWillChange();
-      parent.rightDelim = fence;
-      this.move(+1);
-      this.contentDidChange();
-      return true;
-    } // If we have a 'leftright' sibling to our left
-    // with an indeterminate right fence,
-    // move what's between us and the 'leftright' inside the leftright
-
-
-    var siblings = this.siblings();
-    var i;
-
-    for (i = this.endOffset(); i >= 0; i--) {
-      if (siblings[i].type === 'leftright' && siblings[i].rightDelim === '?') break;
-    }
-
-    if (i >= 0) {
-      this.contentWillChange();
-      siblings[i].rightDelim = fence;
-      siblings[i].body = siblings[i].body.concat(siblings.slice(i + 1, this.endOffset() + 1));
-      siblings.splice(i + 1, this.endOffset() - i);
-      this.setSelection(i);
-      this.contentDidChange();
-      return true;
-    } // If we're inside a 'leftright', but not the last atom,
-    // and the 'leftright' right delim is indeterminate
-    // adjust the body (put everything after the insertion point outside)
-
-
-    if (parent && parent.type === 'leftright' && parent.rightDelim === '?') {
-      this.contentWillChange();
-      parent.rightDelim = fence;
-      var tail = siblings.slice(this.endOffset() + 1);
-      siblings.splice(this.endOffset() + 1);
-      this.path.pop();
-      Array.prototype.splice.apply(this.siblings(), [this.endOffset() + 1, 0].concat(tail));
-      this.contentDidChange();
-      return true;
-    } // Is our grand-parent a 'leftright'?
-    // If `\left(\frac{1}{x|}\right?` with the caret at `|`
-    // go up to the 'leftright' and apply it there instead
-
-
-    var grandparent = this.ancestor(2);
-
-    if (grandparent && grandparent.type === 'leftright' && grandparent.rightDelim === '?' && this.endOffset() === siblings.length - 1) {
-      this.move(1);
-      return this._insertSmartFence(fence, style);
-    } // Meh... We couldn't find a matching open fence. Just insert the
-    // closing fence as a regular character
-
-
-    this.insert(fence, {
-      mode: 'math',
-      format: 'latex',
-      style: style
-    });
-    return true;
-  }
-
-  return false;
-};
-
-EditableMathlist.prototype.positionInsertionPointAfterCommitedCommand = function () {
-  var siblings = this.siblings();
-  var command = this.commandOffsets();
-  var i = command.start;
-
-  while (i < command.end && !siblings[i].suggestion) {
-    i++;
-  }
-
-  this.setSelection(i - 1);
-};
-
-EditableMathlist.prototype.removeSuggestion = function () {
-  var siblings = this.siblings(); // Remove all `suggestion` atoms
-
-  for (var i = siblings.length - 1; i >= 0; i--) {
-    if (siblings[i].suggestion) {
-      siblings.splice(i, 1);
-    }
-  }
-};
-
-EditableMathlist.prototype.insertSuggestion = function (s, l) {
-  this.removeSuggestion();
-  var mathlist = []; // Make a mathlist from the string argument with the `suggestion` property set
-
-  var subs = s.substr(l);
-  var _iteratorNormalCompletion8 = true;
-  var _didIteratorError8 = false;
-  var _iteratorError8 = undefined;
-
-  try {
-    for (var _iterator8 = subs[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
-      var c = _step8.value;
-      var atom = new _mathAtom.default.MathAtom('command', 'command', c);
-      atom.suggestion = true;
-      mathlist.push(atom);
-    } // Splice in the mathlist after the insertion point, but don't change the
-    // insertion point
-
-  } catch (err) {
-    _didIteratorError8 = true;
-    _iteratorError8 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion8 && _iterator8.return != null) {
-        _iterator8.return();
-      }
-    } finally {
-      if (_didIteratorError8) {
-        throw _iteratorError8;
-      }
-    }
-  }
-
-  Array.prototype.splice.apply(this.siblings(), [this.anchorOffset() + 1, 0].concat(mathlist));
-};
-/**
- * Delete sibling atoms
- * @method EditableMathlist#_deleteAtoms
- * @private
- */
-
-
-EditableMathlist.prototype._deleteAtoms = function (count) {
-  if (count > 0) {
-    this.siblings().splice(this.anchorOffset() + 1, count);
-  } else {
-    this.siblings().splice(this.anchorOffset() + count + 1, -count);
-    this.setSelection(this.anchorOffset() + count);
-  }
-};
-/**
- * Delete multiple characters
- * @method EditableMathlist#delete
- */
-
-
-EditableMathlist.prototype.delete = function (count) {
-  count = count || 0;
-
-  if (count === 0) {
-    this.delete_(0);
-  } else if (count > 0) {
-    while (count > 0) {
-      this.delete_(+1);
-      count--;
-    }
-  } else {
-    while (count < 0) {
-      this.delete_(-1);
-      count++;
-    }
-  }
-};
-/**
- * @param {number} dir If the selection is not collapsed, and dir is
- * negative, delete backwards, starting with the anchor atom.
- * That is, delete(-1) will delete only the anchor atom.
- * If dir = 0, delete only if the selection is not collapsed
- * @method EditableMathlist#delete_
- * @instance
- */
-
-
-EditableMathlist.prototype.delete_ = function (dir) {
-  // Dispatch notifications
-  this.contentWillChange();
-  this.selectionWillChange();
-  var contentWasChanging = this.suppressChangeNotifications;
-  this.suppressChangeNotifications = true;
-  dir = dir || 0;
-  dir = dir < 0 ? -1 : dir > 0 ? +1 : dir;
-  this.removeSuggestion();
-
-  if (this.parent().array) {
-    if (dir < 0 && this.startOffset() === 0) {
-      var array = this.parent().array;
-
-      if (arrayFirstCellByRow(array) === this.relation()) {
-        var _this$siblings;
-
-        // (1) First cell:
-        // delete array, replace it with linearized content
-        var atoms = arrayJoinRows(array);
-        this.path.pop();
-
-        (_this$siblings = this.siblings()).splice.apply(_this$siblings, [this.anchorOffset(), 1].concat(_toConsumableArray(atoms)));
-
-        this.setSelection(this.anchorOffset() - 1, atoms.length);
-      } else {
-        var colRow = arrayColRow(array, this.relation());
-
-        if (colRow.col === 0) {
-          // (2) First (non-empty) column (but not first row):
-          // Move to the end of the last cell of the previous row
-          var dest = arrayAdjustRow(array, colRow, -1);
-          dest.col = array[dest.row].length - 1;
-          this.path[this.path.length - 1].relation = 'cell' + arrayIndex(array, dest);
-          var destLength = array[dest.row][dest.col].length; // (2.1) Linearize it and merge it with last cell of previous row
-          // (note that atoms could be empty if there are no non-empty
-          // cells left in the row)
-
-          var _atoms = arrayJoinColumns(array[colRow.row]);
-
-          array[dest.row][dest.col] = array[dest.row][dest.col].concat(_atoms);
-          this.setSelection(destLength - 1, _atoms.length); // (2.2) Remove row
-
-          arrayRemoveRow(array, colRow.row);
-        } else {
-          // (3) Non-first column
-          // (3.1) If column is empty, remove it
-          if (arrayColumnCellCount(array, colRow.col) === 0) {
-            arrayRemoveColumn(array, colRow.col);
-            colRow.col -= 1;
-            this.path[this.path.length - 1].relation = 'cell' + arrayIndex(array, colRow);
-            var destCell = array[colRow.row][colRow.col];
-            this.setSelection(destCell.length - 1, 0);
-          } // (3.2) merge cell with cell in previous column
-
-        }
-      } // Dispatch notifications
-
-
-      this.suppressChangeNotifications = contentWasChanging;
-      this.selectionDidChange();
-      this.contentDidChange();
-      return;
-    }
-  }
-
-  var siblings = this.siblings();
-
-  if (!this.isCollapsed()) {
-    // There is a selection extent. Delete all the atoms within it.
-    var first = this.startOffset() + 1;
-    var last = this.endOffset() + 1;
-
-    this._announce('deleted', null, siblings.slice(first, last));
-
-    siblings.splice(first, last - first); // Adjust the anchor
-
-    this.setSelection(first - 1);
-  } else {
-    var anchorOffset = this.anchorOffset();
-
-    if (dir < 0) {
-      if (anchorOffset !== 0) {
-        // We're not at the begining of the sibling list.
-        // If the previous sibling is a compound (fractions, group),
-        // just move into it, otherwise delete it
-        var sibling = this.sibling(0);
-
-        if (sibling.type === 'leftright') {
-          sibling.rightDelim = '?';
-          this.move(-1);
-        } else if (!sibling.captureSelection && /^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(sibling.type)) {
-          this.move(-1);
-        } else {
-          this._announce('delete', null, siblings.slice(anchorOffset, anchorOffset + 1));
-
-          siblings.splice(anchorOffset, 1);
-          this.setSelection(anchorOffset - 1);
-        }
-      } else {
-        // We're at the beginning of the sibling list.
-        // Delete what comes before
-        var relation = this.relation();
-
-        if (relation === 'superscript' || relation === 'subscript') {
-          var supsub = this.parent()[relation].filter(function (atom) {
-            return atom.type !== 'placeholder' && atom.type !== 'first';
-          });
-          this.parent()[relation] = null;
-          this.path.pop();
-          Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 0].concat(supsub));
-          this.setSelection(this.anchorOffset() - 1);
-
-          this._announce('deleted: ' + relation);
-        } else if (relation === 'denom') {
-          // Fraction denominator
-          var numer = this.parent().numer.filter(function (atom) {
-            return atom.type !== 'placeholder' && atom.type !== 'first';
-          });
-          var denom = this.parent().denom.filter(function (atom) {
-            return atom.type !== 'placeholder' && atom.type !== 'first';
-          });
-          this.path.pop();
-          Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 1].concat(denom));
-          Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 0].concat(numer));
-          this.setSelection(this.anchorOffset() + numer.length - 1);
-
-          this._announce('deleted: denominator');
-        } else if (relation === 'body') {
-          var body = this.siblings().filter(function (atom) {
-            return atom.type !== 'placeholder';
-          });
-
-          if (this.path.length > 1) {
-            body.shift(); // Remove the 'first' atom
-
-            this.path.pop();
-            Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 1].concat(body));
-            this.setSelection(this.anchorOffset() - 1);
-
-            this._announce('deleted: root');
-          }
-        } else {
-          this.move(-1);
-          this.delete(-1);
-        }
-      }
-    } else if (dir > 0) {
-      if (anchorOffset !== siblings.length - 1) {
-        if (/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)) {
-          this.move(+1);
-        } else {
-          this._announce('delete', null, siblings.slice(anchorOffset + 1, anchorOffset + 2));
-
-          siblings.splice(anchorOffset + 1, 1);
-        }
-      } else {
-        // We're at the end of the sibling list, delete what comes next
-        var _relation3 = this.relation();
-
-        if (_relation3 === 'numer') {
-          var _numer = this.parent().numer.filter(function (atom) {
-            return atom.type !== 'placeholder' && atom.type !== 'first';
-          });
-
-          var _denom = this.parent().denom.filter(function (atom) {
-            return atom.type !== 'placeholder' && atom.type !== 'first';
-          });
-
-          this.path.pop();
-          Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 1].concat(_denom));
-          Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 0].concat(_numer));
-          this.setSelection(this.anchorOffset() + _numer.length - 1);
-
-          this._announce('deleted: numerator');
-        } else {
-          this.move(1);
-          this.delete(1);
-        }
-      }
-    }
-  } // Dispatch notifications
-
-
-  this.suppressChangeNotifications = contentWasChanging;
-  this.selectionDidChange();
-  this.contentDidChange();
-};
-/**
- * @method EditableMathlist#moveToNextPlaceholder_
- */
-
-
-EditableMathlist.prototype.moveToNextPlaceholder_ = function () {
-  this.leap(+1);
-};
-/**
- * @method EditableMathlist#moveToPreviousPlaceholder_
- */
-
-
-EditableMathlist.prototype.moveToPreviousPlaceholder_ = function () {
-  this.leap(-1);
-};
-/**
- * @method EditableMathlist#moveToNextChar_
- */
-
-
-EditableMathlist.prototype.moveToNextChar_ = function () {
-  this.move(+1);
-};
-/**
- * @method EditableMathlist#moveToPreviousChar_
- */
-
-
-EditableMathlist.prototype.moveToPreviousChar_ = function () {
-  this.move(-1);
-};
-/**
- * @method EditableMathlist#moveUp_
- */
-
-
-EditableMathlist.prototype.moveUp_ = function () {
-  this.up();
-};
-/**
- * @method EditableMathlist#moveDown_
- */
-
-
-EditableMathlist.prototype.moveDown_ = function () {
-  this.down();
-};
-/**
- * @method EditableMathlist#moveToNextWord_
- */
-
-
-EditableMathlist.prototype.moveToNextWord_ = function () {
-  this.skip(+1);
-};
-/**
- * @method EditableMathlist#moveToPreviousWord_
- */
-
-
-EditableMathlist.prototype.moveToPreviousWord_ = function () {
-  this.skip(-1);
-};
-/**
- * @method EditableMathlist#moveToGroupStart_
- */
-
-
-EditableMathlist.prototype.moveToGroupStart_ = function () {
-  this.setSelection(0);
-};
-/**
- * @method EditableMathlist#moveToGroupEnd_
- */
-
-
-EditableMathlist.prototype.moveToGroupEnd_ = function () {
-  this.setSelection(-1);
-};
-/**
- * @method EditableMathlist#moveToMathFieldStart_
- */
-
-
-EditableMathlist.prototype.moveToMathFieldStart_ = function () {
-  this.jumpToMathFieldBoundary(-1);
-};
-/**
- * @method EditableMathlist#moveToMathFieldEnd_
- */
-
-
-EditableMathlist.prototype.moveToMathFieldEnd_ = function () {
-  this.jumpToMathFieldBoundary(+1);
-};
-/**
- * @method EditableMathlist#deleteNextChar_
- */
-
-
-EditableMathlist.prototype.deleteNextChar_ = function () {
-  this.delete_(+1);
-};
-/**
- * @method EditableMathlist#deletePreviousChar_
- */
-
-
-EditableMathlist.prototype.deletePreviousChar_ = function () {
-  this.delete_(-1);
-};
-/**
- * @method EditableMathlist#deleteNextWord_
- */
-
-
-EditableMathlist.prototype.deleteNextWord_ = function () {
-  this.extendToNextBoundary();
-  this.delete_();
-};
-/**
- * @method EditableMathlist#deletePreviousWord_
- */
-
-
-EditableMathlist.prototype.deletePreviousWord_ = function () {
-  this.extendToPreviousBoundary();
-  this.delete_();
-};
-/**
- * @method EditableMathlist#deleteToGroupStart_
- */
-
-
-EditableMathlist.prototype.deleteToGroupStart_ = function () {
-  this.extendToGroupStart();
-  this.delete_();
-};
-/**
- * @method EditableMathlist#deleteToGroupEnd_
- */
-
-
-EditableMathlist.prototype.deleteToGroupEnd_ = function () {
-  this.extendToMathFieldStart();
-  this.delete_();
-};
-/**
- * @method EditableMathlist#deleteToMathFieldEnd_
- */
-
-
-EditableMathlist.prototype.deleteToMathFieldEnd_ = function () {
-  this.extendToMathFieldEnd();
-  this.delete_();
-};
-/**
- * Swap the characters to either side of the insertion point and advances
- * the insertion point past both of them. Does nothing to a selected range of
- * text.
- * @method EditableMathlist#transpose_
- */
-
-
-EditableMathlist.prototype.transpose_ = function () {} // @todo
-
-/**
- * @method EditableMathlist#extendToNextChar_
- */
-;
-
-EditableMathlist.prototype.extendToNextChar_ = function () {
-  this.extend(+1);
-};
-/**
- * @method EditableMathlist#extendToPreviousChar_
- */
-
-
-EditableMathlist.prototype.extendToPreviousChar_ = function () {
-  this.extend(-1);
-};
-/**
- * @method EditableMathlist#extendToNextWord_
- */
-
-
-EditableMathlist.prototype.extendToNextWord_ = function () {
-  this.skip(+1, {
-    extend: true
-  });
-};
-/**
- * @method EditableMathlist#extendToPreviousWord_
- */
-
-
-EditableMathlist.prototype.extendToPreviousWord_ = function () {
-  this.skip(-1, {
-    extend: true
-  });
-};
-/**
- * If the selection is in a denominator, the selection will be extended to
- * include the numerator.
- * @method EditableMathlist#extendUp_
- */
-
-
-EditableMathlist.prototype.extendUp_ = function () {
-  this.up({
-    extend: true
-  });
-};
-/**
- * If the selection is in a numerator, the selection will be extended to
- * include the denominator.
- * @method EditableMathlist#extendDown_
- */
-
-
-EditableMathlist.prototype.extendDown_ = function () {
-  this.down({
-    extend: true
-  });
-};
-/**
- * Extend the selection until the next boundary is reached. A boundary
- * is defined by an atom of a different type (mbin, mord, etc...)
- * than the current focus. For example, in "1234+x=y", if the focus is between
- * "1" and "2", invoking `extendToNextBoundary_` would extend the selection
- * to "234".
- * @method EditableMathlist#extendToNextBoundary_
- */
-
-
-EditableMathlist.prototype.extendToNextBoundary_ = function () {
-  this.skip(+1, {
-    extend: true
-  });
-};
-/**
- * Extend the selection until the previous boundary is reached. A boundary
- * is defined by an atom of a different type (mbin, mord, etc...)
- * than the current focus. For example, in "1+23456", if the focus is between
- * "5" and "6", invoking `extendToPreviousBoundary` would extend the selection
- * to "2345".
- * @method EditableMathlist#extendToPreviousBoundary_
- */
-
-
-EditableMathlist.prototype.extendToPreviousBoundary_ = function () {
-  this.skip(-1, {
-    extend: true
-  });
-};
-/**
- * @method EditableMathlist#extendToGroupStart_
- */
-
-
-EditableMathlist.prototype.extendToGroupStart_ = function () {
-  this.setExtent(-this.anchorOffset());
-};
-/**
- * @method EditableMathlist#extendToGroupEnd_
- */
-
-
-EditableMathlist.prototype.extendToGroupEnd_ = function () {
-  this.setExtent(this.siblings().length - this.anchorOffset());
-};
-/**
- * @method EditableMathlist#extendToMathFieldStart_
- */
-
-
-EditableMathlist.prototype.extendToMathFieldStart_ = function () {
-  this.jumpToMathFieldBoundary(-1, {
-    extend: true
-  });
-};
-/**
- * Extend the selection to the end of the math field.
- * @method EditableMathlist#extendToMathFieldEnd_
- */
-
-
-EditableMathlist.prototype.extendToMathFieldEnd_ = function () {
-  this.jumpToMathFieldBoundary(+1, {
-    extend: true
-  });
-};
-/**
- * Switch the cursor to the superscript and select it. If there is no subscript
- * yet, create one.
- * @method EditableMathlist#moveToSuperscript_
- */
-
-
-EditableMathlist.prototype.moveToSuperscript_ = function () {
-  this.collapseForward();
-
-  if (!this.anchor().superscript) {
-    if (this.anchor().subscript) {
-      this.anchor().superscript = [makeFirstAtom()];
-    } else {
-      var sibling = this.sibling(1);
-
-      if (sibling && sibling.superscript) {
-        this.path[this.path.length - 1].offset += 1; //            this.setSelection(this.anchorOffset() + 1);
-      } else if (sibling && sibling.subscript) {
-        this.path[this.path.length - 1].offset += 1; //            this.setSelection(this.anchorOffset() + 1);
-
-        this.anchor().superscript = [makeFirstAtom()];
-      } else {
-        if (this.anchor().limits !== 'limits') {
-          this.siblings().splice(this.anchorOffset() + 1, 0, new _mathAtom.default.MathAtom(this.parent().anchorMode, 'msubsup', "\u200B", this.anchorStyle()));
-          this.path[this.path.length - 1].offset += 1; //            this.setSelection(this.anchorOffset() + 1);
-        }
-
-        this.anchor().superscript = [makeFirstAtom()];
-      }
-    }
-  }
-
-  this.path.push({
-    relation: 'superscript',
-    offset: 0
-  });
-  this.selectGroup_();
-};
-/**
- * Switch the cursor to the subscript and select it. If there is no subscript
- * yet, create one.
- * @method EditableMathlist#moveToSubscript_
- */
-
-
-EditableMathlist.prototype.moveToSubscript_ = function () {
-  this.collapseForward();
-
-  if (!this.anchor().subscript) {
-    if (this.anchor().superscript) {
-      this.anchor().subscript = [makeFirstAtom()];
-    } else {
-      var sibling = this.sibling(1);
-
-      if (sibling && sibling.subscript) {
-        this.path[this.path.length - 1].offset += 1; // this.setSelection(this.anchorOffset() + 1);
-      } else if (sibling && sibling.superscript) {
-        this.path[this.path.length - 1].offset += 1; // this.setSelection(this.anchorOffset() + 1);
-
-        this.anchor().subscript = [makeFirstAtom()];
-      } else {
-        if (this.anchor().limits !== 'limits') {
-          this.siblings().splice(this.anchorOffset() + 1, 0, new _mathAtom.default.MathAtom(this.parent().anchorMode, 'msubsup', "\u200B", this.anchorStyle()));
-          this.path[this.path.length - 1].offset += 1; // this.setSelection(this.anchorOffset() + 1);
-        }
-
-        this.anchor().subscript = [makeFirstAtom()];
-      }
-    }
-  }
-
-  this.path.push({
-    relation: 'subscript',
-    offset: 0
-  });
-  this.selectGroup_();
-};
-/**
- * If cursor is currently in:
- * - superscript: move to subscript, creating it if necessary
- * - subscript: move to superscript, creating it if necessary
- * - numerator: move to denominator
- * - denominator: move to numerator
- * - otherwise: move to superscript
- * @method EditableMathlist#moveToOpposite_
- */
-
-
-EditableMathlist.prototype.moveToOpposite_ = function () {
-  var OPPOSITE_RELATIONS = {
-    'superscript': 'subscript',
-    'subscript': 'superscript',
-    'denom': 'numer',
-    'numer': 'denom'
-  };
-  var oppositeRelation = OPPOSITE_RELATIONS[this.relation()];
-
-  if (!oppositeRelation) {
-    this.moveToSuperscript_();
-  }
-
-  if (!this.parent()[oppositeRelation]) {
-    // Don't have children of the opposite relation yet
-    // Add them
-    this.parent()[oppositeRelation] = [makeFirstAtom()];
-  }
-
-  this.setSelection(0, 'end', oppositeRelation);
-};
-/**
- * @method EditableMathlist#moveBeforeParent_
- */
-
-
-EditableMathlist.prototype.moveBeforeParent_ = function () {
-  if (this.path.length > 1) {
-    this.path.pop();
-    this.setSelection(this.anchorOffset() - 1);
-  } else {
-    this._announce('plonk');
-  }
-};
-/**
- * @method EditableMathlist#moveAfterParent_
- */
-
-
-EditableMathlist.prototype.moveAfterParent_ = function () {
-  if (this.path.length > 1) {
-    var oldPath = clone(this);
-    this.path.pop();
-    this.setExtent(0);
-
-    this._announce('move', oldPath);
-  } else {
-    this._announce('plonk');
-  }
-};
-/**
- * Internal primitive to add a column/row in a matrix
- * @method EditableMathlist#_addCell
- * @private
- */
-
-
-EditableMathlist.prototype._addCell = function (where) {
-  // This command is only applicable if we're in an array
-  var parent = this.parent();
-
-  if (parent && parent.type === 'array' && Array.isArray(parent.array)) {
-    var relation = this.relation();
-
-    if (parent.array) {
-      var colRow = arrayColRow(parent.array, relation);
-
-      if (where === 'after row' || where === 'before row') {
-        // Insert a row
-        colRow.col = 0;
-        colRow.row = colRow.row + (where === 'after row' ? 1 : 0);
-        parent.array.splice(colRow.row, 0, [[]]);
-      } else {
-        // Insert a column
-        colRow.col += where === 'after column' ? 1 : 0;
-        parent.array[colRow.row].splice(colRow.col, 0, []);
-      }
-
-      var cellIndex = arrayIndex(parent.array, colRow);
-      this.path.pop();
-      this.path.push({
-        relation: 'cell' + cellIndex.toString(),
-        offset: 0
-      });
-      this.insertFirstAtom();
-    }
-  }
-};
-
-EditableMathlist.prototype.convertParentToArray = function () {
-  var parent = this.parent();
-
-  if (parent.type === 'leftright') {
-    parent.type = 'array';
-    var envName = {
-      '(': 'pmatrix',
-      '\\lbrack': 'bmatrix',
-      '\\lbrace': 'cases'
-    }[parent.leftDelim] || 'matrix';
-
-    var env = _definitions.default.getEnvironmentInfo(envName);
-
-    var array = [[parent.body]];
-
-    if (env.parser) {
-      Object.assign(parent, env.parser(envName, [], array));
-    }
-
-    parent.tabularMode = env.tabular;
-    parent.parseMode = this.anchorMode();
-    parent.env = _objectSpread({}, env);
-    parent.env.name = envName;
-    parent.array = array;
-    parent.rowGaps = [0];
-    delete parent.body;
-    this.path[this.path.length - 1].relation = 'cell0';
-  } // Note: could also be a group, or we could be a subscript or an
-  // underscript (for multi-valued conditions on a \sum, for example)
-  // Or if at root, this could be a 'align*' environment
-
-};
-/**
- * @method EditableMathlist#addRowAfter_
- */
-
-
-EditableMathlist.prototype.addRowAfter_ = function () {
-  this.contentWillChange();
-  this.convertParentToArray();
-
-  this._addCell('after row');
-
-  this.contentDidChange();
-};
-/**
- * @method EditableMathlist#addRowBefore_
- */
-
-
-EditableMathlist.prototype.addRowBefore_ = function () {
-  this.contentWillChange();
-  this.convertParentToArray();
-
-  this._addCell('before row');
-
-  this.contentDidChange();
-};
-/**
- * @method EditableMathlist#addColumnAfter_
- */
-
-
-EditableMathlist.prototype.addColumnAfter_ = function () {
-  this.contentWillChange();
-  this.convertParentToArray();
-
-  this._addCell('after column');
-
-  this.contentDidChange();
-};
-/**
- * @method EditableMathlist#addColumnBefore_
- */
-
-
-EditableMathlist.prototype.addColumnBefore_ = function () {
-  this.contentWillChange();
-  this.convertParentToArray();
-
-  this._addCell('before column');
-
-  this.contentDidChange();
-};
-/**
- * Apply a style (color, background) to the selection.
- * 
- * If the style is already applied to the selection, remove it. If the selection
- * has the style partially applied (i.e. only some sections), remove it from 
- * those sections, and apply it to the entire selection.
- * 
- * @method EditableMathlist#applyStyle
- */
-
-
-EditableMathlist.prototype._applyStyle = function (style) {
-  // No selection, nothing to do.
-  if (this.isCollapsed()) return;
-  var that = this;
-
-  function everyStyle(property, value) {
-    var result = true;
-    that.forEachSelected(function (x) {
-      result = result && x[property] === value;
-    }, {
-      recursive: true
-    });
-    return result;
-  }
-
-  if (style.color && everyStyle('color', style.color)) {
-    // If the selection already has this color, turn it off
-    style.color = 'none';
-  }
-
-  if (style.backgroundColor && everyStyle('backgroundColor', style.backgroundColor)) {
-    // If the selection already has this color, turn it off
-    style.backgroundColor = 'none';
-  }
-
-  if (style.fontFamily && everyStyle('fontFamily', style.fontFamily)) {
-    // If the selection already has this font family, turn it off
-    style.fontFamily = 'none';
-  }
-
-  if (style.series) style.fontSeries = style.series;
-
-  if (style.fontSeries && everyStyle('fontSeries', style.fontSeries)) {
-    // If the selection already has this series (weight), turn it off
-    style.fontSeries = 'auto';
-  }
-
-  if (style.shape) style.fontShape = style.shape;
-
-  if (style.fontShape && everyStyle('fontShape', style.fontShape)) {
-    // If the selection already has this shape (italic), turn it off
-    style.fontShape = 'auto';
-  }
-
-  if (style.size) style.fontSize = style.size;
-
-  if (style.fontSize && everyStyle('fontSize', style.fontSize)) {
-    // If the selection already has this size, reset it to default size
-    style.fontSize = 'size5';
-  }
-
-  this.contentWillChange();
-  this.forEachSelected(function (x) {
-    return x.applyStyle(style);
-  }, {
-    recursive: true
-  });
-  this.contentDidChange();
-};
-/**
- * Attempts to parse and interpret a string in an unknown format, possibly
- * ASCIIMath and return a canonical LaTeX string.
- * 
- * The format recognized are one of these variations:
- * - ASCIIMath: Only supports a subset 
- * (1/2x)
- * 1/2sin x                     -> \frac {1}{2}\sin x
- * 1/2sinx                      -> \frac {1}{2}\sin x
- * (1/2sin x (x^(2+1))          // Unbalanced parentheses
- * (1/2sin(x^(2+1))             -> \left(\frac {1}{2}\sin \left(x^{2+1}\right)\right)
- * alpha + (pi)/(4)             -> \alpha +\frac {\pi }{4}
- * x=(-b +- sqrt(b^2 – 4ac))/(2a)
- * alpha/beta
- * sqrt2 + sqrtx + sqrt(1+a) + sqrt(1/2)
- * f(x) = x^2 "when" x >= 0
- * AA n in QQ
- * AA x in RR "," |x| > 0
- * AA x in RR "," abs(x) > 0
- * 
- * - UnicodeMath (generated by Microsoft Word): also only supports a subset
- *      - See https://www.unicode.org/notes/tn28/UTN28-PlainTextMath-v3.1.pdf
- * √(3&x+1)
- * {a+b/c}
- * [a+b/c]
- * _a^b x 
- * lim_(n->\infty) n
- * \iint_(a=0)^\infty  a
- *
- * - "JavaScript Latex": a variant that is LaTeX, but with escaped backslashes
- *  \\frac{1}{2} \\sin x
- * @param {string} s 
- */
-
-
-function parseMathString(s, config) {
-  if (!s) return ''; // Nothing to do if a single character
-
-  if (s.length <= 1) return s; // Replace double-backslash (coming from JavaScript) to a single one
-
-  if (!config || config.format !== 'ASCIIMath') {
-    s = s.replace(/\\\\([^\s\n])/g, '\\$1');
-  }
-
-  if ((!config || config.format !== 'ASCIIMath') && /\\/.test(s)) {
-    // If the string includes a '\' and a '{' or a '}'
-    // it's probably a LaTeX string
-    // (that's not completely true, it could be a UnicodeMath string, since
-    // UnicodeMath supports some LaTeX commands. However, we need to pick
-    // one in order to correctly interpret {} (which are argument delimiters
-    // in LaTeX, and are fences in UnicodeMath)
-    return s;
-  }
-
-  s = s.replace(/\u2061/g, ''); // Remove function application
-
-  s = s.replace(/\u3016/g, '{'); // WHITE LENTICULAR BRACKET (grouping)
-
-  s = s.replace(/\u3017/g, '}'); // WHITE LENTICULAR BRACKET (grouping)
-
-  s = s.replace(/([^\\])sinx/g, '$1\\sin x'); // common typo
-
-  s = s.replace(/([^\\])cosx/g, '$1\\cos x '); // common typo
-
-  s = s.replace(/\u2013/g, '-'); // EN-DASH, sometimes used as a minus sign
-
-  return parseMathExpression(s, config);
-}
-
-function parseMathExpression(s, config) {
-  if (!s) return '';
-  var done = false;
-  var m;
-
-  if (!done && (s[0] === '^' || s[0] === '_')) {
-    // Superscript and subscript
-    m = parseMathArgument(s.substr(1), _objectSpread({}, config, {
-      noWrap: true
-    }));
-    s = s[0] + '{' + m.match + '}';
-    s += parseMathExpression(m.rest, config);
-    done = true;
-  }
-
-  if (!done) {
-    m = s.match(/^(sqrt|\u221a)(.*)/);
-
-    if (m) {
-      // Square root
-      m = parseMathArgument(m[2], _objectSpread({}, config, {
-        noWrap: true
-      }));
-      s = '\\sqrt{' + m.match + '}';
-      s += parseMathExpression(m.rest, config);
-      done = true;
-    }
-  }
-
-  if (!done) {
-    m = s.match(/^(\\cbrt|\u221b)(.*)/);
-
-    if (m) {
-      // Cube root
-      m = parseMathArgument(m[2], _objectSpread({}, config, {
-        noWrap: true
-      }));
-      s = '\\sqrt[3]{' + m.match + '}';
-      s += parseMathExpression(m.rest, config);
-      done = true;
-    }
-  }
-
-  if (!done) {
-    m = s.match(/^abs(.*)/);
-
-    if (m) {
-      // Absolute value
-      m = parseMathArgument(m[1], _objectSpread({}, config, {
-        noWrap: true
-      }));
-      s = '\\left|' + m.match + '\\right|';
-      s += parseMathExpression(m.rest, config);
-      done = true;
-    }
-  }
-
-  if (!done) {
-    m = s.match(/^["”“](.*?)["”“](.*)/);
-
-    if (m) {
-      // Quoted text
-      s = "\\text{" + m[1] + '}';
-      s += parseMathExpression(m[2], config);
-      done = true;
-    }
-  }
-
-  if (!done) {
-    m = s.match(/^([^a-zA-Z({[_^\\\s"]+)(.*)/); // A string of symbols...
-    // Could be a binary or relational operator, etc...
-
-    if (m) {
-      s = paddedShortcut(m[1], config);
-      s += parseMathExpression(m[2], config);
-      done = true;
-    }
-  }
-
-  if (!done && /^(f|g|h)[^a-zA-Z]/.test(s)) {
-    // This could be a function...
-    m = parseMathArgument(s.substring(1), config);
-    s = s[0];
-    s += m.match;
-    s += parseMathExpression(m.rest, config);
-    done = true;
-  }
-
-  if (!done) {
-    m = s.match(/^([a-zA-Z]+)(.*)/);
-
-    if (m) {
-      // Some alphabetical string...
-      // Could be a function name (sin) or symbol name (alpha)
-      s = paddedShortcut(m[1], config);
-      s += parseMathExpression(m[2], config);
-      done = true;
-    }
-  }
-
-  if (!done) {
-    m = parseMathArgument(s, _objectSpread({}, config, {
-      noWrap: true
-    }));
-
-    if (m.match && m.rest[0] === '/') {
-      // Fraction
-      var m2 = parseMathArgument(m.rest.substr(1), _objectSpread({}, config, {
-        noWrap: true
-      }));
-
-      if (m2.match) {
-        s = '\\frac{' + m.match + '}{' + m2.match + '}' + parseMathExpression(m2.rest, config);
-      }
-
-      done = true;
-    } else if (m.match && /^(\(|\{|\[)$/.test(s[0])) {
-      // A group
-      s = '\\left' + s[0] + m.match + '\\right' + {
-        '(': ')',
-        '{': '}',
-        '[': ']'
-      }[s[0]] + parseMathExpression(m.rest, config);
-      done = true;
-    } else if (m.match) {
-      s = m.match;
-      s += parseMathExpression(m.rest, config);
-      done = true;
-    }
-  }
-
-  if (!done) {
-    m = s.match(/^(\s+)(.*)$/); // Whitespace
-
-    if (m) {
-      s = ' ' + parseMathExpression(m[2], config);
-      done = true;
-    }
-  }
-
-  return s;
-}
-/**
- * Parse a math argument, as defined by ASCIIMath and UnicodeMath:
- * - Either an expression fenced in (), {} or []
- * - a number (- sign, digits, decimal point, digits)
- * - a single [a-zA-Z] letter (an identifier)
- * - a multi-letter shortcut (e.g., pi)
- * - a LaTeX command (\pi) (for UnicodeMath)
- * @param {string} s 
- * @return {object}
- * - match: the parsed (and converted) portion of the string that is an argument
- * - rest: the raw, unconverted, rest of the string
- */
-
-
-function parseMathArgument(s, config) {
-  var match = '';
-  s = s.trim();
-  var rest = s;
-  var lFence = s.charAt(0);
-  var rFence = {
-    '(': ')',
-    '{': '}',
-    '[': ']'
-  }[lFence];
-
-  if (rFence) {
-    // It's a fence
-    var level = 1;
-    var i = 1;
-
-    while (i < s.length && level > 0) {
-      if (s[i] === lFence) level++;
-      if (s[i] === rFence) level--;
-      i++;
-    }
-
-    if (level === 0) {
-      // We've found the matching closing fence
-      if (config.noWrap && lFence === '(' && rFence === ')') {
-        match = parseMathExpression(s.substring(1, i - 1), config);
-      } else {
-        match = '\\mleft' + lFence + parseMathExpression(s.substring(1, i - 1), config) + '\\mright' + rFence;
-      }
-
-      rest = s.substring(i);
-    } else {
-      // Unbalanced fence...
-      match = s.substring(1, i);
-      rest = '';
-    }
-  } else {
-    var m = s.match(/^([a-zA-Z]+)/);
-
-    if (m) {
-      // It's a string of letter, maybe a shortcut
-      var shortcut = _editorShortcuts.default.forString('math', null, s, config);
-
-      if (shortcut) {
-        shortcut = shortcut.replace('_{#?}', '');
-        shortcut = shortcut.replace('^{#?}', '');
-        return {
-          match: shortcut,
-          rest: s.substring(shortcut.length)
-        };
-      }
-    }
-
-    m = s.match(/^([a-zA-Z])/);
-
-    if (m) {
-      // It's a single letter
-      return {
-        match: m[1],
-        rest: s.substring(1)
-      };
-    }
-
-    m = s.match(/^(-)?\d+(\.\d*)?/);
-
-    if (m) {
-      // It's a number
-      return {
-        match: m[0],
-        rest: s.substring(m[0].length)
-      };
-    }
-
-    if (!/^\\(left|right)/.test(s)) {
-      // It's a LaTeX command (but not a \left\right)
-      m = s.match(/^(\\[a-zA-Z]+)/);
-
-      if (m) {
-        rest = s.substring(m[1].length);
-        match = m[1];
-      }
-    }
-  }
-
-  return {
-    match: match,
-    rest: rest
-  };
-}
-
-function paddedShortcut(s, config) {
-  var result = _editorShortcuts.default.forString('math', null, s, config);
-
-  if (result) {
-    result = result.replace('_{#?}', '');
-    result = result.replace('^{#?}', '');
-    result += ' ';
-  } else {
-    result = s;
-  }
-
-  return result;
-}
-
-function makeFirstAtom() {
-  return new _mathAtom.default.MathAtom('', 'first');
-}
-
-var _default = {
-  EditableMathlist: EditableMathlist,
-  parseMathString: parseMathString
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-keyboard.js b/dist/editor/editor-keyboard.js
deleted file mode 100644
index f941ce59c..000000000
--- a/dist/editor/editor-keyboard.js
+++ /dev/null
@@ -1,372 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-/**
- * This modules handles low-level keyboard events and normalize them across
- * browsers.
- * @module editor/keyboard
- * @private
- */
-// These keys on international (non-US QWERTY) keyboards should 
-// be mapped to the coresponding virtual keys (they could be shifted keys on
-// international keyboards)
-var INTL_KEY = {
-  '#': '#',
-  '|': '|',
-  '[': 'BracketLeft',
-  ']': 'BracketRight',
-  '-': 'Minus',
-  '+': 'Plus',
-  '=': 'Equal',
-  '/': 'Slash',
-  '\\': 'Backslash'
-};
-var KEY_NAMES = {
-  'Space': 'Spacebar',
-  ' ': 'Spacebar',
-  'Escape': 'Esc',
-  'ArrowLeft': 'Left',
-  'ArrowUp': 'Up',
-  'ArrowRight': 'Right',
-  'ArrowDown': 'Down',
-  'Delete': 'Del'
-};
-var VIRTUAL_KEY_NAMES = {
-  'q': 'KeyQ',
-  'w': 'KeyW',
-  'e': 'KeyE',
-  'r': 'KeyR',
-  't': 'KeyT',
-  'y': 'KeyY',
-  'u': 'KeyU',
-  'i': 'KeyI',
-  'o': 'KeyO',
-  'p': 'KeyP',
-  'a': 'KeyA',
-  's': 'KeyS',
-  'd': 'KeyD',
-  'f': 'KeyF',
-  'g': 'KeyG',
-  'h': 'KeyH',
-  'j': 'KeyJ',
-  'k': 'KeyK',
-  'l': 'KeyL',
-  'z': 'KeyZ',
-  'x': 'KeyX',
-  'c': 'KeyC',
-  'v': 'KeyV',
-  'b': 'KeyB',
-  'n': 'KeyN',
-  'm': 'KeyM',
-  '1': 'Digit1',
-  '2': 'Digit2',
-  '3': 'Digit3',
-  '4': 'Digit4',
-  '5': 'Digit5',
-  '6': 'Digit6',
-  '7': 'Digit7',
-  '8': 'Digit8',
-  '9': 'Digit9',
-  '0': 'Digit0',
-  '!': 'Shift-Digit1',
-  '@': 'Shift-Digit2',
-  '#': 'Shift-Digit3',
-  '$': 'Shift-Digit4',
-  '%': 'Shift-Digit5',
-  '^': 'Shift-Digit6',
-  '&': 'Shift-Digit7',
-  '*': 'Shift-Digit8',
-  '(': 'Shift-Digit9',
-  ')': 'Shift-Digit0',
-  '-': 'Minus',
-  '_': 'Shift-Minus',
-  '/': 'Slash',
-  '\\': 'Backslash',
-  // Some virtual keyboards (iOS) return '\' as the event.key
-  // with no evt.code
-  '|': 'Shift-Backslash',
-  '?': 'Shift-Slash',
-  ' ': 'Spacebar'
-};
-/**
- * 
- * Create a normalized string representation of the key combo,
- * i.e., key code and modifier keys. For example:
- * - `Ctrl-Shift-Alt-KeyF`
- * - `Alt-Space`
- * - `Shift-Digit6`
- * @todo See https://github.com/madrobby/keymaster/blob/master/keymaster.js
- * - Doesn't work very well for command-<key>
- * - Returns "Alt-Alt" when only the Alt key is pressed
- * @memberof module:editor/keyboard
- * @param {Event} evt 
- */
-
-function keyboardEventToString(evt) {
-  var keyname;
-  var useModifiers = true;
-
-  if (evt.key === 'Unidentified') {
-    // On Android, the evt.key seems to always be Unidentified. 
-    // Get the value entered in the event target
-    if (evt.target) {
-      keyname = VIRTUAL_KEY_NAMES[evt.target.value] || evt.target.value;
-    }
-  }
-
-  if (!keyname && evt.code) {
-    keyname = KEY_NAMES[evt.code] || evt.code;
-  }
-
-  if (!keyname) {
-    if (INTL_KEY[evt.key]) {
-      keyname = INTL_KEY[evt.key];
-      useModifiers = false;
-    } else {
-      keyname = KEY_NAMES[evt.key];
-    } // For virtual keyboards (iOS, Android) and Microsoft Edge (!)
-    // the `evt.code`, which represents the physical key pressed, is set 
-    // to undefined. In that case, map the virtual key ("q") to a
-    // pseudo-hardware key ("KeyQ")
-
-
-    if (!keyname) {
-      keyname = VIRTUAL_KEY_NAMES[evt.key.toLowerCase()] || evt.key;
-    }
-  }
-
-  var modifiers = [];
-  if (evt.ctrlKey) modifiers.push('Ctrl');
-  if (evt.metaKey) modifiers.push('Meta');
-  if (useModifiers && evt.altKey) modifiers.push('Alt');
-  if (useModifiers && evt.shiftKey) modifiers.push('Shift'); // If no modifiers, simply return the key name
-
-  if (modifiers.length === 0) return keyname;
-  modifiers.push(keyname);
-  return modifiers.join('-');
-}
-/**
- * Setup to capture the keyboard events from a `TextArea` and redispatch them to 
- * handlers.
- * 
- * In general, commands (arrows, delete, etc..) should be handled 
- * in the `keystroke()` handler while text input should be handled in 
- * `typedtext()`.
- * 
- * @param {Element} textarea A `TextArea` element that will capture the keyboard
- * events. While this element will usually be a `TextArea`, it could be any
- * element that is focusable and can receive keyboard events.
- * @param {Object.<string, any>} handlers
- * @param {Element} [handlers.container]
- * @param {function} handlers.keystroke invoked on a key down event, including 
- * for special keys such as ESC, arrow keys, tab, etc... and their variants 
- * with modifiers.
- * @param {function} handlers.typedtext invoked on a keypress or other events 
- * when a key corresponding to a character has been pressed. This include `a-z`, 
- * `0-9`, `{}`, `^_()`, etc...
- * This does not include arrow keys, tab, etc... but does include 'space'
- * When a 'character' key is pressed, both `keystroke()` and `typedtext()` will
- * be invoked. When a control/function key is pressed, only `keystroke()` will 
- * be invoked. In some cases, for example when using input methods or entering
- * emoji, only `typedtext()` will be invoked. 
- * @param {function} handlers.paste(text) Invoked in response to a paste 
- * command. Not all browsers support this (Chrome doesn't), so typedtext() 
- * will be invoked instead.
- * @param {function} handlers.cut
- * @param {function} handlers.copy
- * @memberof module:editor/keyboard
- * @private
- */
-
-
-function delegateKeyboardEvents(textarea, handlers) {
-  var keydownEvent = null;
-  var keypressEvent = null;
-  var compositionInProgress = false;
-  var deadKey = false; // This callback is invoked after a keyboard event has been processed
-  // by the textarea
-
-  var callbackTimeoutID;
-
-  function defer(cb) {
-    clearTimeout(callbackTimeoutID);
-    callbackTimeoutID = setTimeout(function () {
-      clearTimeout(callbackTimeoutID);
-      cb();
-    });
-  }
-
-  function handleTypedText() {
-    // Some browsers (Firefox, Opera) fire a keypress event for commands
-    // such as command-C where there might be a non-empty selection.
-    // We need to ignore these.
-    if (hasSelection(textarea)) return;
-    var text = textarea.value;
-    textarea.value = '';
-    if (text.length > 0) handlers.typedText(text);
-  }
-
-  function onKeydown(e) {
-    var allowDeadKey = typeof handlers.allowDeadKey === 'function' && handlers.allowDeadKey();
-
-    if (!allowDeadKey && (e.key === 'Dead' || e.key === 'Unidentified' || e.keyCode === 229)) {
-      deadKey = true;
-      compositionInProgress = false; // This sequence seems to cancel dead keys
-      // but don't call our blur/focus handlers
-
-      var savedBlur = handlers.blur;
-      var savedFocus = handlers.focus;
-      handlers.blur = null;
-      handlers.focus = null;
-      textarea.blur();
-      textarea.focus();
-      handlers.blur = savedBlur;
-      handlers.focus = savedFocus;
-    } else {
-      deadKey = false;
-    }
-
-    if (!compositionInProgress && e.code !== 'CapsLock' && !/(Control|Meta|Alt|Shift)(Right|Left)/.test(e.code)) {
-      keydownEvent = e;
-      keypressEvent = null;
-      return handlers.keystroke(keyboardEventToString(e), e);
-    }
-
-    return true;
-  }
-
-  function onKeypress(e) {
-    // If this is not the first keypress after a keydown, that is,
-    // if this is a repeated keystroke, call the keystroke handler.
-    if (!compositionInProgress) {
-      if (keydownEvent && keypressEvent) {
-        handlers.keystroke(keyboardEventToString(keydownEvent), keydownEvent);
-      }
-
-      keypressEvent = e;
-      defer(handleTypedText);
-    }
-  }
-
-  function onKeyup() {
-    // If we've received a keydown, but no keypress, check what's in the
-    // textarea field.
-    if (!compositionInProgress && keydownEvent && !keypressEvent) {
-      handleTypedText();
-    }
-  }
-
-  function onPaste() {
-    // In some cases (Linux browsers), the text area might not be focused
-    // when doing a middle-click paste command.
-    textarea.focus();
-    var text = textarea.value;
-    textarea.value = '';
-    if (text.length > 0) handlers.paste(text);
-  }
-
-  function onCopy(e) {
-    if (handlers.copy) handlers.copy(e);
-  }
-
-  function onCut(e) {
-    if (handlers.cut) handlers.cut(e);
-  }
-
-  function onBlur() {
-    keydownEvent = null;
-    keypressEvent = null;
-    if (handlers.blur) handlers.blur();
-  }
-
-  function onFocus() {
-    if (handlers.focus) {
-      handlers.focus();
-    }
-  }
-
-  var target = textarea || handlers.container;
-  target.addEventListener('keydown', onKeydown, true);
-  target.addEventListener('keypress', onKeypress, true);
-  target.addEventListener('keyup', onKeyup, true);
-  target.addEventListener('paste', onPaste, true);
-  target.addEventListener('copy', onCopy, true);
-  target.addEventListener('cut', onCut, true);
-  target.addEventListener('blur', onBlur, true);
-  target.addEventListener('focus', onFocus, true);
-  target.addEventListener('compositionstart', function () {
-    compositionInProgress = true;
-  }, true);
-  target.addEventListener('compositionend', function () {
-    compositionInProgress = false;
-    defer(handleTypedText);
-  }, true); // The `input` handler gets called when the field is changed, for example 
-  // with input methods or emoji input...
-
-  target.addEventListener('input', function () {
-    if (deadKey) {
-      var savedBlur = handlers.blur;
-      var savedFocus = handlers.focus;
-      handlers.blur = null;
-      handlers.focus = null;
-      textarea.blur();
-      textarea.focus();
-      handlers.blur = savedBlur;
-      handlers.focus = savedFocus;
-      deadKey = false;
-      compositionInProgress = false;
-      defer(handleTypedText);
-    } else if (!compositionInProgress) {
-      defer(handleTypedText);
-    }
-  });
-}
-
-function hasSelection(textarea) {
-  return textarea.selectionStart !== textarea.selectionEnd;
-}
-
-function eventToChar(evt) {
-  if (!evt) return '';
-  var result;
-
-  if (evt.key === 'Unidentified') {
-    // On Android, the evt.key seems to always be 'Unidentified'.
-    // Get the value entered in the event target
-    if (evt.target) {
-      result = evt.target.value;
-    }
-  }
-
-  result = result || evt.key || evt.code;
-
-  if (/^(Return|Enter|Tab|Escape|Delete|PageUp|PageDown|Home|End|Help|ArrowLeft|ArrowRight|ArrowUp|ArrowDown)$/.test(result)) {
-    result = '';
-  }
-
-  return result;
-}
-
-function charToEvent(c) {
-  var result = {
-    key: c,
-    metaKey: false,
-    ctrlKey: false,
-    altKey: false,
-    shiftKey: false
-  };
-  return result;
-}
-
-var _default = {
-  delegateKeyboardEvents: delegateKeyboardEvents,
-  select: delegateKeyboardEvents.select,
-  keyboardEventToString: keyboardEventToString,
-  eventToChar: eventToChar,
-  charToEvent: charToEvent
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-mathfield.js b/dist/editor/editor-mathfield.js
deleted file mode 100644
index 77b50da96..000000000
--- a/dist/editor/editor-mathfield.js
+++ /dev/null
@@ -1,3980 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _definitions = _interopRequireDefault(require("../core/definitions.js"));
-
-var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
-
-var _lexer = _interopRequireDefault(require("../core/lexer.js"));
-
-var _parser = _interopRequireDefault(require("../core/parser.js"));
-
-var _span = _interopRequireDefault(require("../core/span.js"));
-
-var _editorEditableMathlist = _interopRequireDefault(require("./editor-editableMathlist.js"));
-
-var _editorMathpath = _interopRequireDefault(require("./editor-mathpath.js"));
-
-var _editorKeyboard = _interopRequireDefault(require("./editor-keyboard.js"));
-
-var _editorUndo = _interopRequireDefault(require("./editor-undo.js"));
-
-var _editorShortcuts = _interopRequireDefault(require("./editor-shortcuts.js"));
-
-var _editorPopover = _interopRequireDefault(require("./editor-popover.js"));
-
-var _editorVirtualKeyboard = _interopRequireDefault(require("./editor-virtualKeyboard.js"));
-
-var _graphemeSplitter = _interopRequireDefault(require("../core/grapheme-splitter.js"));
-
-var _outputASCIIMath = require("./outputASCIIMath.js");
-
-var _l10n = require("./l10n.js");
-
-require("../addons/outputLatex.js");
-
-require("../addons/outputMathML.js");
-
-require("../addons/maston.js");
-
-require("../addons/outputSpokenText.js");
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
-
-function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
-
-function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
-
-function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
-
-function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
-
-function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
-
-/*
-    Note:
-    The OutputLatex, OutputMathML, MASTON and OutputSpokenText  modules are required,
-    even though they are not referenced directly.
-
-    They modify the MathAtom class, adding toLatex(), toAST(), toMathML() and
-    toSpeakableText() respectively.
-*/
-var HAPTIC_FEEDBACK_DURATION = 3; // in ms
-
-var AUDIO_FEEDBACK_VOLUME = 0.5; // from 0.0 to 1.0
-
-function on(el, selectors, listener, options) {
-  selectors = selectors.split(' ');
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
-
-  try {
-    for (var _iterator = selectors[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var sel = _step.value;
-      var m = sel.match(/(.*):(.*)/);
-
-      if (m) {
-        var options2 = options || {};
-
-        if (m[2] === 'active') {
-          options2.passive = false;
-        } else {
-          options2[m[2]] = true;
-        }
-
-        el.addEventListener(m[1], listener, options2);
-      } else {
-        el.addEventListener(sel, listener, options);
-      }
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator.return != null) {
-        _iterator.return();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
-    }
-  }
-}
-
-function off(el, selectors, listener, options) {
-  selectors = selectors.split(' ');
-  var _iteratorNormalCompletion2 = true;
-  var _didIteratorError2 = false;
-  var _iteratorError2 = undefined;
-
-  try {
-    for (var _iterator2 = selectors[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-      var sel = _step2.value;
-      var m = sel.match(/(.*):(.*)/);
-
-      if (m) {
-        var options2 = options || {};
-
-        if (m[2] === 'active') {
-          options2.passive = false;
-        } else {
-          options2[m[2]] = true;
-        }
-
-        el.removeEventListener(m[1], listener, options2);
-      } else {
-        el.removeEventListener(sel, listener, options);
-      }
-    }
-  } catch (err) {
-    _didIteratorError2 = true;
-    _iteratorError2 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-        _iterator2.return();
-      }
-    } finally {
-      if (_didIteratorError2) {
-        throw _iteratorError2;
-      }
-    }
-  }
-}
-
-function getSharedElement(id, cls) {
-  var result = document.getElementById(id);
-
-  if (result) {
-    result.setAttribute('data-refcount', parseInt(result.getAttribute('data-refcount')) + 1);
-  } else {
-    result = document.createElement('div');
-    result.setAttribute('aria-hidden', 'true');
-    result.setAttribute('data-refcount', '1');
-    result.className = cls;
-    result.id = id;
-    document.body.appendChild(result);
-  }
-
-  return result;
-}
-
-function releaseSharedElement(el) {
-  if (!el) return null;
-  var refcount = parseInt(el.getAttribute('data-refcount'));
-
-  if (!refcount || refcount === 1) {
-    el.remove();
-  } else {
-    el.setAttribute('data-refcount', refcount - 1);
-  }
-
-  return el;
-}
-/**
- * To create a mathfield, you would typically use {@linkcode module:MathLive#makeMathField MathLive.makeMathField()}
- * instead of invoking directly this constructor.
- * 
- * **Note**
- * - Method names that begin with `$` are public.
- * - Method names that _begin with_ an underbar `_` are private and meant
- * to be used only by the implementation of the class.
- * - Method names that _end with_ an underbar `_` are selectors. They can
- * be invoked by calling [`MathField.$perform()`]{@link MathField#$perform}. Note
- * that the selector name does not include the underbar.
- *
- * For example:
- * ```
- *    mf.$perform('selectAll');
- * ```
- * 
- * @param {Element} element - The DOM element that this mathfield is attached to.
- * Note that `element.mathfield` is this object.
- * @param {object} config - See {@tutorial CONFIG} for details
- * @property {Element} element - The DOM element this mathfield is attached to.
- * @property {Object.<string, any>} config - A set of key/value pairs that can
- * be used to customize the behavior of the mathfield
- * @property {string} id - A unique ID identifying this mathfield
- * @property {boolean} keystrokeCaptionVisible - True if the keystroke caption
- * panel is visible
- * @property {boolean} virtualKeyboardVisible - True if the virtual keyboard is 
- * visible
- * @property {string} keystrokeBuffer The last few keystrokes, to look out
- * for inline shortcuts
- * @property {object[]} keystrokeBufferStates The saved state for each of the 
- * past keystrokes
- * @class
- * @global
- */
-
-
-function MathField(element, config) {
-  var _this = this;
-
-  // Setup default config options
-  this.$setConfig(config || {});
-  this.element = element;
-  element.mathfield = this; // Save existing content
-
-  this.originalContent = element.innerHTML;
-  var elementText = this.element.textContent;
-  if (elementText) elementText = elementText.trim(); // Additional elements used for UI.
-  // They are retrieved in order a bit later, so they need to be kept in sync
-  // 1.0/ The field, where the math equation will be displayed
-  // 1.1/ The virtual keyboard toggle
-  // 2/ The popover panel which displays info in command mode
-  // 3/ The keystroke caption panel (option+shift+K)
-  // 4/ The virtual keyboard
-  // 5.0/ The area to stick MathML for screen reading larger exprs (not used right now)
-  //      The for the area is that focus would bounce their and then back triggering the
-  //         screen reader to read it
-  // 5.1/ The aria-live region for announcements
-
-  var markup = '';
-
-  if (!this.config.substituteTextArea) {
-    if (/android|ipad|ipod|iphone/i.test(navigator.userAgent)) {
-      // On Android or iOS, don't use a textarea, which has the side effect of
-      // bringing up the OS virtual keyboard
-      markup += "<span class='ML__textarea'>\n                <span class='ML__textarea__textarea'\n                    tabindex=\"0\" role=\"textbox\"\n                    style='display:inline-block;height:1px;width:1px' >\n                </span>\n            </span>";
-    } else {
-      markup += '<span class="ML__textarea">' + '<textarea class="ML__textarea__textarea" autocapitalize="off" autocomplete="off" ' + 'autocorrect="off" spellcheck="false" aria-hidden="true" tabindex="0">' + '</textarea>' + '</span>';
-    }
-  } else {
-    if (typeof this.config.substituteTextArea === 'string') {
-      markup += this.config.substituteTextArea;
-    } else {
-      // We don't really need this one, but we keep it here so that the
-      // indexes below remain the same whether a substituteTextArea is
-      // provided or not.
-      markup += '<span></span>';
-    }
-  }
-
-  markup += '<span class="ML__fieldcontainer">' + '<span class="ML__fieldcontainer__field"></span>'; // If no value is specified for the virtualKeyboardMode, use 
-  // `onfocus` on touch-capable devices and `off` otherwise.
-
-  if (!this.config.virtualKeyboardMode) {
-    this.config.virtualKeyboardMode = window.matchMedia && window.matchMedia("(any-pointer: coarse)").matches ? 'onfocus' : 'off';
-  } // Only display the virtual keyboard toggle if the virtual keyboard mode is
-  // 'manual'
-
-
-  if (this.config.virtualKeyboardMode === 'manual') {
-    markup += "<button class=\"ML__virtual-keyboard-toggle\" data-tooltip=\"".concat((0, _l10n.l10n)('tooltip.toggle virtual keyboard'), "\">"); // data-tooltip='Toggle Virtual Keyboard'
-
-    if (this.config.virtualKeyboardToggleGlyph) {
-      markup += this.config.virtualKeyboardToggleGlyph;
-    } else {
-      markup += "<span style=\"width: 21px; margin-top: 4px;\"><svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 576 512\"><path d=\"M528 64H48C21.49 64 0 85.49 0 112v288c0 26.51 21.49 48 48 48h480c26.51 0 48-21.49 48-48V112c0-26.51-21.49-48-48-48zm16 336c0 8.823-7.177 16-16 16H48c-8.823 0-16-7.177-16-16V112c0-8.823 7.177-16 16-16h480c8.823 0 16 7.177 16 16v288zM168 268v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm-336 80v-24c0-6.627-5.373-12-12-12H84c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm384 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zM120 188v-24c0-6.627-5.373-12-12-12H84c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm-96 152v-8c0-6.627-5.373-12-12-12H180c-6.627 0-12 5.373-12 12v8c0 6.627 5.373 12 12 12h216c6.627 0 12-5.373 12-12z\"/></svg></span>";
-    }
-
-    markup += '</button>';
-  } else {
-    markup += '<span ></span>';
-  }
-
-  markup += '</span>';
-  markup += "\n        <div class=\"sr-only\">\n            <span aria-live=\"assertive\" aria-atomic=\"true\"></span>\n            <span></span>\n        </div>\n    ";
-  this.element.innerHTML = markup;
-  var iChild = 0; // index of child -- used to make changes below easier
-
-  if (typeof this.config.substituteTextArea === 'function') {
-    this.textarea = this.config.substituteTextArea();
-  } else {
-    this.textarea = this.element.children[iChild++].firstElementChild;
-  }
-
-  this.field = this.element.children[iChild].children[0]; // Listen to 'wheel' events to scroll (horizontally) the field when it overflows
-
-  this.field.addEventListener('wheel', function (ev) {
-    ev.preventDefault();
-    ev.stopPropagation();
-    var wheelDelta = typeof ev.deltaX === 'undefined' ? ev.detail : -ev.deltaX;
-    if (!isFinite(wheelDelta)) wheelDelta = ev.wheelDelta / 10;
-
-    _this.field.scroll({
-      top: 0,
-      left: _this.field.scrollLeft - wheelDelta * 5
-    });
-  }, {
-    passive: false
-  });
-  this.virtualKeyboardToggleDOMNode = this.element.children[iChild++].children[1];
-
-  this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode, {
-    default: 'toggleVirtualKeyboard',
-    alt: 'toggleVirtualKeyboardAlt',
-    shift: 'toggleVirtualKeyboardShift'
-  });
-
-  this.ariaLiveText = this.element.children[iChild].children[0];
-  this.accessibleNode = this.element.children[iChild++].children[1]; // Some panels are shared amongst instances of mathfield
-  // (there's a single instance in the document)
-
-  this.popover = getSharedElement('mathlive-popover-panel', 'ML__popover');
-  this.keystrokeCaption = getSharedElement('mathlive-keystroke-caption-panel', 'ML__keystroke-caption'); // The keystroke caption panel and the command bar are
-  // initially hidden
-
-  this.keystrokeCaptionVisible = false;
-  this.virtualKeyboardVisible = false;
-  this.keystrokeBuffer = '';
-  this.keystrokeBufferStates = [];
-  this.keystrokeBufferResetTimer = null; // This index indicates which of the suggestions available to
-  // display in the popover panel
-
-  this.suggestionIndex = 0; // The input mode (text, math, command)
-  // While mathlist.anchorMode() represent the mode of the current selection,
-  // this.mode is the mode chosen by the user. It indicates the mode the 
-  // next character typed will be interpreted in. 
-  // It is often identical to mathlist.anchorMode() since changing the selection
-  // changes the mode, but sometimes it is not, for example when a user 
-  // enters a mode changing command.
-
-  this.mode = config.defaultMode || 'math';
-  this.smartModeSuppressed = false; // Current style (color, weight, italic, etc...) 
-  // Reflects the style to be applied on next insertion, if any
-
-  this.style = {}; // Focus/blur state
-
-  this.blurred = true;
-  on(this.element, 'focus', this);
-  on(this.element, 'blur', this); // Capture clipboard events
-
-  on(this.textarea, 'cut', this);
-  on(this.textarea, 'copy', this);
-  on(this.textarea, 'paste', this); // Delegate keyboard events
-
-  _editorKeyboard.default.delegateKeyboardEvents(this.textarea, {
-    container: this.element,
-    allowDeadKey: function allowDeadKey() {
-      return _this.mode === 'text';
-    },
-    typedText: this._onTypedText.bind(this),
-    paste: this._onPaste.bind(this),
-    keystroke: this._onKeystroke.bind(this),
-    focus: this._onFocus.bind(this),
-    blur: this._onBlur.bind(this)
-  }); // Delegate mouse and touch events
-
-
-  if (window.PointerEvent) {
-    // Use modern pointer events if available
-    on(this.field, 'pointerdown', this);
-  } else {
-    on(this.field, 'touchstart:active mousedown', this);
-  } // Request notification for when the window is resized (
-  // or the device switched from portrait to landscape) to adjust
-  // the UI (popover, etc...)
-
-
-  on(window, 'resize', this); // Override some handlers in the config
-
-  var localConfig = _objectSpread({}, config);
-
-  localConfig.onSelectionDidChange = MathField.prototype._onSelectionDidChange.bind(this);
-  localConfig.onContentDidChange = MathField.prototype._onContentDidChange.bind(this);
-  localConfig.onAnnounce = this.config.onAnnounce;
-  localConfig.macros = this.config.macros;
-  localConfig.removeExtraneousParentheses = this.config.removeExtraneousParentheses;
-  this.mathlist = new _editorEditableMathlist.default.EditableMathlist(localConfig, this); // Prepare to manage undo/redo
-
-  this.undoManager = new _editorUndo.default.UndoManager(this.mathlist); // If there was some content in the element, use it for the initial
-  // value of the mathfield
-
-  if (elementText.length > 0) {
-    this.$latex(elementText);
-  } // Now start recording potentially undoable actions
-
-
-  this.undoManager.startRecording();
-  this.undoManager.snapshot(this.config);
-}
-/**
- * handleEvent is a function invoked when an event is registered with an
- * object instead ( see `addEventListener()` in `on()`)
- * The name is defined by addEventListener() and cannot be changed.
- * This pattern is used to be able to release bound event handlers, 
- * (event handlers that need access to `this`) as the bind() function
- * would create a new function that would have to be kept track off
- * to be able to properly remove the event handler later.
- */
-
-
-MathField.prototype.handleEvent = function (evt) {
-  var _this2 = this;
-
-  switch (evt.type) {
-    case 'focus':
-      this._onFocus(evt);
-
-      break;
-
-    case 'blur':
-      this._onBlur(evt);
-
-      break;
-
-    case 'touchstart':
-      this._onPointerDown(evt);
-
-      break;
-
-    case 'mousedown':
-      this._onPointerDown(evt);
-
-      break;
-
-    case 'pointerdown':
-      this._onPointerDown(evt);
-
-      break;
-
-    case 'resize':
-      {
-        if (this._resizeTimer) window.cancelAnimationFrame(this._resizeTimer);
-        this._resizeTimer = window.requestAnimationFrame(function () {
-          return _this2._onResize();
-        });
-        break;
-      }
-
-    case 'cut':
-      this._onCut(evt);
-
-      break;
-
-    case 'copy':
-      this._onCopy(evt);
-
-      break;
-
-    case 'paste':
-      this._onPaste(evt);
-
-      break;
-
-    default:
-      console.warn('Unexpected event type', evt.type);
-  }
-};
-/**
- * Revert this math field to its original content. After this method has been
- * called, no other methods can be called on the MathField object. To turn the
- * element back into a MathField, call `MathLive.makeMathField()` on the
- * element again to get a new math field object.
- *
- * @method MathField#$revertToOriginalContent
- */
-
-
-MathField.prototype.revertToOriginalContent = MathField.prototype.$revertToOriginalContent = function () {
-  this.element.innerHTML = this.originalContent;
-  this.element.mathfield = null;
-  delete this.accessibleNode;
-  delete this.ariaLiveText;
-  delete this.field;
-  off(this.textarea, 'cut', this);
-  off(this.textarea, 'copy', this);
-  off(this.textarea, 'paste', this);
-  this.textarea.remove();
-  delete this.textarea;
-  this.virtualKeyboardToggleDOMNode.remove();
-  delete this.virtualKeyboardToggleDOMNode;
-  delete releaseSharedElement(this.popover);
-  delete releaseSharedElement(this.keystrokeCaption);
-  delete releaseSharedElement(this.virtualKeyboard);
-  delete releaseSharedElement(document.getElementById('mathlive-alternate-keys-panel'));
-  off(this.element, 'pointerdown', this);
-  off(this.element, 'touchstart:active mousedown', this);
-  off(this.element, 'focus', this);
-  off(this.element, 'blur', this);
-  off(window, 'resize', this);
-};
-
-MathField.prototype._resetKeystrokeBuffer = function () {
-  this.keystrokeBuffer = '';
-  this.keystrokeBufferStates = [];
-  clearTimeout(this.keystrokeBufferResetTimer);
-};
-/**
- * Utility function that returns the element which has the caret
- *
- * @param {DomElement} el
- * @private
- */
-
-
-function _findElementWithCaret(el) {
-  if (el.classList.contains('ML__caret') || el.classList.contains('ML__text-caret') || el.classList.contains('ML__command-caret')) {
-    return el;
-  }
-
-  var result;
-  Array.from(el.children).forEach(function (child) {
-    result = result || _findElementWithCaret(child);
-  });
-  return result;
-}
-/**
- * Return the (x,y) client coordinates of the caret
- *
- * @method MathField#_getCaretPosition
- * @private
- */
-
-
-MathField.prototype._getCaretPosition = function () {
-  var caret = _findElementWithCaret(this.field);
-
-  if (caret) {
-    var bounds = caret.getBoundingClientRect();
-    return {
-      x: bounds.right + window.scrollX,
-      y: bounds.bottom + window.scrollY
-    };
-  }
-
-  return null;
-};
-
-MathField.prototype._getSelectionBounds = function () {
-  var selectedNodes = this.field.querySelectorAll('.ML__selected');
-
-  if (selectedNodes && selectedNodes.length > 0) {
-    var selectionRect = {
-      top: Infinity,
-      bottom: -Infinity,
-      left: Infinity,
-      right: -Infinity
-    }; // Calculate the union of the bounds of all the selected spans
-
-    selectedNodes.forEach(function (node) {
-      var bounds = node.getBoundingClientRect();
-      if (bounds.left < selectionRect.left) selectionRect.left = bounds.left;
-      if (bounds.right > selectionRect.right) selectionRect.right = bounds.right;
-      if (bounds.bottom > selectionRect.bottom) selectionRect.bottom = bounds.bottom;
-      if (bounds.top < selectionRect.top) selectionRect.top = bounds.top;
-    });
-    var fieldRect = this.field.getBoundingClientRect();
-    var w = selectionRect.right - selectionRect.left;
-    var h = selectionRect.bottom - selectionRect.top;
-    selectionRect.left = Math.ceil(selectionRect.left - fieldRect.left + this.field.scrollLeft);
-    selectionRect.right = selectionRect.left + w;
-    selectionRect.top = Math.ceil(selectionRect.top - fieldRect.top);
-    selectionRect.bottom = selectionRect.top + h;
-    return selectionRect;
-  }
-
-  return null;
-};
-/**
- * Return a tuple of an element and a distance from point (x, y)
- * @param {Element} el
- * @param {number} x
- * @param {number} y
- * @function module:editor/mathfield#nearestElementFromPoint
- * @private
- */
-
-
-function nearestElementFromPoint(el, x, y) {
-  var result = {
-    element: null
-  };
-  var considerChildren = true;
-
-  if (!el.getAttribute('data-atom-id')) {
-    // This element may not have a matching atom, but its children might
-    result.distance = Number.POSITIVE_INFINITY;
-  } else {
-    result.element = el; // Calculate the (square of the) distance to the rectangle
-
-    var r = el.getBoundingClientRect();
-    var dx = Math.max(r.left - x, x - r.right);
-    var dy = Math.max(r.top - y, y - r.bottom);
-    result.distance = dx * dx + dy * dy; // Only consider children if the target is inside the (horizontal) 
-    // bounds of the element.
-    // This avoid searching the numerator/denominator when a fraction
-    // is the last element in the formula.
-
-    considerChildren = x >= r.left && x <= r.right;
-  }
-
-  if (considerChildren && el.children) {
-    Array.from(el.children).forEach(function (child) {
-      var nearest = nearestElementFromPoint(child, x, y);
-
-      if (nearest.element && nearest.distance <= result.distance) {
-        result = nearest;
-      }
-    });
-  }
-
-  return result;
-}
-/**
- * @param {number} x 
- * @param {number} y 
- * @param {object} options
- * @param {boolean} options.bias  if 0, the midpoint of the bounding box
- * is considered to return the sibling. If <0, the left sibling is 
- * favored, if >0, the right sibling
- */
-
-
-MathField.prototype._pathFromPoint = function (x, y, options) {
-  options = options || {};
-  options.bias = options.bias || 0;
-  var result; // Try to find the deepest element that is near the point that was
-  // clicked on (the point could be outside of the element)
-
-  var nearest = nearestElementFromPoint(this.field, x, y);
-  var el = nearest.element;
-  var id = el ? el.getAttribute('data-atom-id') : null;
-
-  if (id) {
-    // Let's find the atom that has a matching ID with the element that
-    // was clicked on (or near)
-    var paths = this.mathlist.filter(function (_path, atom) {
-      // If the atom allows children to be selected, match only if
-      // the ID of  the atom matches the one we're looking for.
-      if (!atom.captureSelection) {
-        return atom.id === id;
-      } // If the atom does not allow children to be selected
-      // (captureSelection === true), the element matches if any of
-      // its children has an ID that matches.
-
-
-      return atom.filter(function (childAtom) {
-        return childAtom.id === id;
-      }).length > 0;
-    });
-
-    if (paths && paths.length > 0) {
-      // (There should be exactly one atom that matches this ID...)
-      // Set the result to the path to this atom
-      result = _editorMathpath.default.pathFromString(paths[0]).path;
-
-      if (options.bias === 0) {
-        // If the point clicked is to the left of the vertical midline,
-        // adjust the path to *before* the atom (i.e. after the
-        // preceding atom)
-        var bounds = el.getBoundingClientRect();
-
-        if (x < bounds.left + bounds.width / 2 && !el.classList.contains('ML__placeholder')) {
-          result[result.length - 1].offset = Math.max(0, result[result.length - 1].offset - 1);
-        }
-      } else if (options.bias < 0) {
-        result[result.length - 1].offset = Math.min(this.mathlist.siblings().length - 1, Math.max(0, result[result.length - 1].offset + options.bias));
-      }
-    }
-  }
-
-  return result;
-};
-
-var lastTap;
-var tapCount = 0;
-
-MathField.prototype._onPointerDown = function (evt) {
-  var that = this;
-  var anchor;
-  var trackingPointer = false;
-  var trackingWords = false;
-  var dirty = false; // If a mouse button other than the main one was pressed, return
-
-  if (evt.buttons !== 1) return;
-
-  function endPointerTracking(evt) {
-    if (window.PointerEvent) {
-      off(that.field, 'pointermove', onPointerMove);
-      off(that.field, 'pointerend pointerleave pointercancel', endPointerTracking); // off(window, 'pointermove', onPointerMove);
-      // off(window, 'pointerup blur', endPointerTracking);
-
-      that.field.releasePointerCapture(evt.pointerId);
-    } else {
-      off(that.field, 'touchmove', onPointerMove);
-      off(that.field, 'touchend touchleave', endPointerTracking);
-      off(window, 'mousemove', onPointerMove);
-      off(window, 'mouseup blur', endPointerTracking);
-    }
-
-    trackingPointer = false;
-    clearInterval(scrollInterval);
-    that.element.querySelectorAll('.ML__scroller').forEach(function (x) {
-      return x.parentNode.removeChild(x);
-    });
-    evt.preventDefault();
-    evt.stopPropagation();
-  }
-
-  var scrollLeft = false;
-  var scrollRight = false;
-  var scrollInterval = setInterval(function () {
-    if (scrollLeft) {
-      that.field.scroll({
-        top: 0,
-        left: that.field.scrollLeft - 16
-      });
-    } else if (scrollRight) {
-      that.field.scroll({
-        top: 0,
-        left: that.field.scrollLeft + 16
-      });
-    }
-  }, 32);
-
-  function onPointerMove(evt) {
-    var x = evt.touches ? evt.touches[0].clientX : evt.clientX;
-    var y = evt.touches ? evt.touches[0].clientY : evt.clientY; // Ignore events that are within small spatial and temporal bounds 
-    // of the pointer down
-
-    var hysteresis = evt.pointerType === 'touch' ? 20 : 5;
-
-    if (Date.now() < anchorTime + 500 && Math.abs(anchorX - x) < hysteresis && Math.abs(anchorY - y) < hysteresis) {
-      evt.preventDefault();
-      evt.stopPropagation();
-      return;
-    }
-
-    var fieldBounds = that.field.getBoundingClientRect();
-    scrollRight = x > fieldBounds.right;
-    scrollLeft = x < fieldBounds.left;
-    var actualAnchor = anchor;
-
-    if (window.PointerEvent) {
-      if (!evt.isPrimary) {
-        actualAnchor = that._pathFromPoint(evt.clientX, evt.clientY, {
-          bias: 0
-        });
-      }
-    } else {
-      if (evt.touches && evt.touches.length === 2) {
-        actualAnchor = that._pathFromPoint(evt.touches[1].clientX, evt.touches[1].clientY, {
-          bias: 0
-        });
-      }
-    }
-
-    var focus = that._pathFromPoint(x, y, {
-      bias: x <= anchorX ? x === anchorX ? 0 : -1 : +1
-    });
-
-    if (focus && that.mathlist.setRange(actualAnchor, focus, {
-      extendToWordBoundary: trackingWords
-    })) {
-      // Re-render if the range has actually changed
-      that._requestUpdate();
-    } // Prevent synthetic mouseMove event when this is a touch event
-
-
-    evt.preventDefault();
-    evt.stopPropagation();
-  }
-
-  var anchorX = evt.touches ? evt.touches[0].clientX : evt.clientX;
-  var anchorY = evt.touches ? evt.touches[0].clientY : evt.clientY;
-  var anchorTime = Date.now(); // Calculate the tap count 
-
-  if (lastTap && Math.abs(lastTap.x - anchorX) < 5 && Math.abs(lastTap.y - anchorY) < 5 && Date.now() < lastTap.time + 500) {
-    tapCount += 1;
-    lastTap.time = anchorTime;
-  } else {
-    lastTap = {
-      x: anchorX,
-      y: anchorY,
-      time: anchorTime
-    };
-    tapCount = 1;
-  }
-
-  var bounds = this.field.getBoundingClientRect();
-
-  if (anchorX >= bounds.left && anchorX <= bounds.right && anchorY >= bounds.top && anchorY <= bounds.bottom) {
-    // Create divs to block out pointer tracking to the left and right of 
-    // the math field (to avoid triggering the hover of the virtual 
-    // keyboard toggle, for example)
-    var div = document.createElement('div');
-    div.className = 'ML__scroller';
-    this.element.appendChild(div);
-    div.style.left = bounds.left - 200 + 'px';
-    div = document.createElement('div');
-    div.className = 'ML__scroller';
-    this.element.appendChild(div);
-    div.style.left = bounds.right + 'px'; // Focus the math field
-
-    if (!this.hasFocus()) {
-      dirty = true;
-      if (this.textarea.focus) this.textarea.focus();
-    } // Clicking or tapping the field resets the keystroke buffer and 
-    // smart mode
-
-
-    this._resetKeystrokeBuffer();
-
-    this.smartModeSuppressed = false;
-    anchor = this._pathFromPoint(anchorX, anchorY, {
-      bias: 0
-    });
-
-    if (anchor) {
-      if (evt.shiftKey) {
-        // Extend the selection if the shift-key is down
-        this.mathlist.setRange(this.mathlist.path, anchor);
-        anchor = _editorMathpath.default.clone(this.mathlist.path);
-        anchor[anchor.length - 1].offset -= 1;
-      } else {
-        this.mathlist.setPath(anchor, 0);
-      } // The selection has changed, so we'll need to re-render
-
-
-      dirty = true; // Reset any user-specified style
-
-      this.style = {}; // evt.detail contains the number of consecutive clicks
-      // for double-click, triple-click, etc...
-      // (note that evt.detail is not set when using pointerEvent)
-
-      if (evt.detail === 3 || tapCount > 2) {
-        endPointerTracking(evt);
-
-        if (evt.detail === 3 || tapCount === 3) {
-          // This is a triple-click
-          this.mathlist.selectAll_();
-        }
-      } else if (!trackingPointer) {
-        trackingPointer = true;
-
-        if (window.PointerEvent) {
-          on(that.field, 'pointermove', onPointerMove);
-          on(that.field, 'pointerend pointercancel pointerup', endPointerTracking);
-          that.field.setPointerCapture(evt.pointerId);
-        } else {
-          on(window, 'blur', endPointerTracking);
-
-          if (evt.touches) {
-            // To receive the subsequent touchmove/touch, need to
-            // listen to this evt.target.
-            // This was a touch event
-            on(evt.target, 'touchmove', onPointerMove);
-            on(evt.target, 'touchend', endPointerTracking);
-          } else {
-            on(window, 'mousemove', onPointerMove);
-            on(window, 'mouseup', endPointerTracking);
-          }
-        }
-
-        if (evt.detail === 2 || tapCount === 2) {
-          // This is a double-click
-          trackingWords = true;
-          this.mathlist.selectGroup_();
-        }
-      }
-    }
-  } else {
-    lastTap = null;
-  }
-
-  if (dirty) this._requestUpdate(); // Prevent the browser from handling, in particular when this is a
-  // touch event prevent the synthetic mouseDown event from being generated
-
-  evt.preventDefault();
-};
-
-MathField.prototype._onSelectionDidChange = function () {
-  // Every atom before the new caret position is now committed
-  this.mathlist.commitCommandStringBeforeInsertionPoint(); // If the selection is not collapsed, put it in the textarea
-  // This will allow cut/copy to work.
-
-  var result = '';
-  this.mathlist.forEachSelected(function (atom) {
-    result += atom.toLatex();
-  });
-
-  if (result) {
-    this.textarea.value = result; // The textarea may be a span (on mobile, for example), so check that
-    // it has a select() before calling it.
-
-    if (this.hasFocus() && this.textarea.select) {
-      this.textarea.select();
-    }
-  } else {
-    this.textarea.value = '';
-    this.textarea.setAttribute('aria-label', '');
-  } // Update the mode
-
-
-  {
-    var previousMode = this.mode;
-    this.mode = this.mathlist.anchorMode() || this.config.defaultMode;
-
-    if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') {
-      this.config.onModeChange(this, this.mode);
-    }
-
-    if (previousMode === 'command' && this.mode !== 'command') {
-      _editorPopover.default.hidePopover(this);
-
-      this.mathlist.removeCommandString();
-    }
-  } // Defer the updating of the popover position: we'll need the tree to be
-  // re-rendered first to get an updated caret position
-
-  _editorPopover.default.updatePopoverPosition(this, {
-    deferred: true
-  }); // Invoke client handlers, if provided.
-
-
-  if (typeof this.config.onSelectionDidChange === 'function') {
-    this.config.onSelectionDidChange(this);
-  }
-};
-
-MathField.prototype._onContentDidChange = function () {
-  if (this.undoManager.canRedo()) {
-    this.element.classList.add('can-redo');
-  } else {
-    this.element.classList.remove('can-redo');
-  }
-
-  if (this.undoManager.canUndo()) {
-    this.element.classList.add('can-undo');
-  } else {
-    this.element.classList.remove('can-undo');
-  }
-
-  if (typeof this.config.onContentDidChange === 'function') {
-    this.config.onContentDidChange(this);
-  }
-};
-/* Returns the speech text of the next atom after the selection or
- *   an 'end of' phrasing based on what structure we are at the end of
- */
-
-
-MathField.prototype._nextAtomSpeechText = function (oldMathlist) {
-  function relation(parent, leaf) {
-    var EXPR_NAME = {
-      //    'array': 'should not happen',
-      'numer': 'numerator',
-      'denom': 'denominator',
-      'index': 'index',
-      'body': 'parent',
-      'subscript': 'subscript',
-      'superscript': 'superscript'
-    };
-    var PARENT_NAME = {
-      'enclose': 'cross out',
-      // FIX -- should base on type of enclose
-      'leftright': 'fence',
-      'surd': 'square root',
-      'root': 'math field'
-    };
-    return leaf.relation === 'body' ? PARENT_NAME[parent.type] : EXPR_NAME[leaf.relation];
-  }
-
-  var oldPath = oldMathlist ? oldMathlist.path : [];
-  var path = this.mathlist.path;
-  var leaf = path[path.length - 1];
-  var result = '';
-
-  while (oldPath.length > path.length) {
-    result += 'out of ' + relation(oldMathlist.parent(), oldPath[oldPath.length - 1]) + '; ';
-    oldPath.pop();
-  }
-
-  if (!this.mathlist.isCollapsed()) {
-    return speakableText(this, '', this.mathlist.getSelectedAtoms());
-  } // announce start of denominator, etc
-
-
-  var relationName = relation(this.mathlist.parent(), leaf);
-
-  if (leaf.offset === 0) {
-    result += (relationName ? 'start of ' + relationName : 'unknown') + ': ';
-  }
-
-  var atom = this.mathlist.sibling(Math.max(1, this.mathlist.extent));
-
-  if (atom) {
-    result += speakableText(this, '', atom);
-  } else if (leaf.offset !== 0) {
-    // don't say both start and end
-    result += relationName ? 'end of ' + relationName : 'unknown';
-  }
-
-  return result;
-};
-
-function speakableText(mathfield, prefix, atoms) {
-  var config = Object.assign({}, mathfield.config);
-  config.textToSpeechMarkup = '';
-  return prefix + _mathAtom.default.toSpeakableText(atoms, config);
-}
-/**
- * Announce a change in selection or content via the aria-live region.
- * This is the default implementation for this function. It can be overridden
- * via `config.onAnnounce`
- * @param {object} target typically, a MathField
- * @param {string} command the command that invoked the change
- * @param {Atom[]} [oldMathlist=[]] the previous value of mathlist before the change
- * @param {Atom[]} [atomsToSpeak=[] ] 
- * @method MathField#_onAnnounce
- * @private
- */
-
-
-function _onAnnounce(target, command, oldMathlist, atomsToSpeak) {
-  //** Fix: the focus is the end of the selection, so it is before where we want it
-  var liveText = ''; // const command = moveAmount > 0 ? "right" : "left";
-
-  if (command === 'plonk') {
-    // Use this sound to indicate (minor) errors, for
-    // example when a command has no effect.
-    if (target.plonkSound) {
-      target.plonkSound.load();
-      target.plonkSound.play().catch(function (err) {
-        return console.warn(err);
-      });
-    } // As a side effect, reset the keystroke buffer
-
-
-    target._resetKeystrokeBuffer();
-  } else if (command === 'delete') {
-    liveText = speakableText(target, 'deleted: ', atomsToSpeak); //*** FIX: could also be moveUp or moveDown -- do something different like provide context???
-  } else if (command === 'focus' || /move/.test(command)) {
-    //*** FIX -- should be xxx selected/unselected */
-    liveText = (target.mathlist.isCollapsed() ? '' : 'selected: ') + target._nextAtomSpeechText(oldMathlist);
-  } else if (command === 'replacement') {
-    // announce the contents
-    liveText = speakableText(target, '', target.mathlist.sibling(0));
-  } else if (command === 'line') {
-    // announce the current line -- currently that's everything
-    liveText = speakableText(target, '', target.mathlist.root);
-    target.accessibleNode.innerHTML = '<math xmlns="http://www.w3.org/1998/Math/MathML">' + _mathAtom.default.toMathML(target.mathlist.root, target.config) + '</math>';
-    target.textarea.setAttribute('aria-label', 'after: ' + liveText);
-    /*** FIX -- testing hack for setting braille ***/
-    // target.accessibleNode.focus();
-    // console.log("before sleep");
-    // sleep(1000).then(() => {
-    //     target.textarea.focus();
-    //     console.log("after sleep");
-    // });
-  } else {
-    liveText = atomsToSpeak ? speakableText(target, command + " ", atomsToSpeak) : command;
-  } // aria-live regions are only spoken when it changes; force a change by
-  // alternately using nonbreaking space or narrow nonbreaking space
-
-
-  var ariaLiveChangeHack = /\u00a0/.test(target.ariaLiveText.textContent) ? " \u202F " : " \xA0 ";
-  target.ariaLiveText.textContent = liveText + ariaLiveChangeHack; // this.textarea.setAttribute('aria-label', liveText + ariaLiveChangeHack);
-}
-
-MathField.prototype._announce = function (command, mathlist, atoms) {
-  if (typeof this.config.onAnnounce === 'function') {
-    this.config.onAnnounce(this, command, mathlist, atoms);
-  }
-};
-
-MathField.prototype._onFocus = function () {
-  if (this.blurred) {
-    this.blurred = false; // The textarea may be a span (on mobile, for example), so check that
-    // it has a focus() before calling it.
-
-    if (this.textarea.focus) this.textarea.focus();
-
-    if (this.config.virtualKeyboardMode === 'onfocus') {
-      this.showVirtualKeyboard_();
-    }
-
-    _editorPopover.default.updatePopoverPosition(this);
-
-    if (this.config.onFocus) this.config.onFocus(this);
-
-    this._requestUpdate();
-  }
-};
-
-MathField.prototype._onBlur = function () {
-  if (!this.blurred) {
-    this.blurred = true;
-    this.ariaLiveText.textContent = '';
-
-    if (this.config.virtualKeyboardMode === 'onfocus') {
-      this.hideVirtualKeyboard_();
-    }
-
-    this.complete_({
-      discard: true
-    });
-
-    this._requestUpdate();
-
-    if (this.config.onBlur) this.config.onBlur(this);
-  }
-};
-
-MathField.prototype._onResize = function () {
-  this.element.classList.remove('ML__isNarrowWidth', 'ML__isWideWidth', 'ML__isExtendedWidth');
-
-  if (window.innerWidth >= 1024) {
-    this.element.classList.add('ML__isExtendedWidth');
-  } else if (window.innerWidth >= 768) {
-    this.element.classList.add('ML__isWideWidth');
-  } else {
-    this.element.classList.add('ML__isNarrowWidth');
-  }
-
-  _editorPopover.default.updatePopoverPosition(this);
-};
-
-MathField.prototype.toggleKeystrokeCaption_ = function () {
-  this.keystrokeCaptionVisible = !this.keystrokeCaptionVisible;
-  this.keystrokeCaption.innerHTML = '';
-
-  if (!this.keystrokeCaptionVisible) {
-    this.keystrokeCaption.style.visibility = 'hidden';
-  }
-};
-
-MathField.prototype._showKeystroke = function (keystroke) {
-  var vb = this.keystrokeCaption;
-
-  if (vb && this.keystrokeCaptionVisible) {
-    var bounds = this.element.getBoundingClientRect();
-    vb.style.left = bounds.left + 'px';
-    vb.style.top = bounds.top - 64 + 'px';
-    vb.innerHTML = '<span>' + (_editorShortcuts.default.stringify(keystroke) || keystroke) + '</span>' + vb.innerHTML;
-    vb.style.visibility = 'visible';
-    setTimeout(function () {
-      if (vb.childNodes.length > 0) {
-        vb.removeChild(vb.childNodes[vb.childNodes.length - 1]);
-      }
-
-      if (vb.childNodes.length === 0) {
-        vb.style.visibility = 'hidden';
-      }
-    }, 3000);
-  }
-};
-/**
- * @param {string|string[]} command - A selector, or an array whose first element
- * is a selector, and whose subsequent elements are arguments to the selector.
- * Note that selectors do not include a final "_". They can be passed either 
- * in camelCase or kebab-case. So:
- * ```javascript
- * mf.$perform('selectAll');
- * mf.$perform('select-all');
- * ```
- * both calls are valid and invoke the same selector.
- * 
- * @method MathField#$perform
- */
-
-
-MathField.prototype.perform = MathField.prototype.$perform = function (command) {
-  if (!command) return false;
-  var handled = false;
-  var selector;
-  var args = [];
-  var dirty = false;
-
-  if (Array.isArray(command)) {
-    selector = command[0];
-    args = command.slice(1);
-  } else {
-    selector = command;
-  } // Convert kebab case (like-this) to camel case (likeThis).
-
-
-  selector = selector.replace(/-\w/g, function (m) {
-    return m[1].toUpperCase();
-  });
-  selector += '_';
-
-  if (typeof this.mathlist[selector] === 'function') {
-    var _this$mathlist;
-
-    if (/^(delete|transpose|add)/.test(selector)) {
-      this._resetKeystrokeBuffer();
-    }
-
-    if (/^(delete|transpose|add)/.test(selector) && this.mode !== 'command') {
-      // Update the undo state to account for the current selection
-      this.undoManager.pop();
-      this.undoManager.snapshot(this.config);
-    }
-
-    (_this$mathlist = this.mathlist)[selector].apply(_this$mathlist, _toConsumableArray(args));
-
-    if (/^(delete|transpose|add)/.test(selector) && this.mode !== 'command') {
-      this.undoManager.snapshot(this.config);
-    }
-
-    if (/^(delete)/.test(selector) && this.mode === 'command') {
-      var _command = this.mathlist.extractCommandStringAroundInsertionPoint();
-
-      var suggestions = _definitions.default.suggest(_command);
-
-      if (suggestions.length === 0) {
-        _editorPopover.default.hidePopover(this);
-      } else {
-        _editorPopover.default.showPopoverWithLatex(this, suggestions[0].match, suggestions.length > 1);
-      }
-    }
-
-    dirty = true;
-    handled = true;
-  } else if (typeof this[selector] === 'function') {
-    dirty = this[selector].apply(this, _toConsumableArray(args));
-    handled = true;
-  } // If the command changed the selection so that it is no longer 
-  // collapsed, or if it was an editing command, reset the inline
-  // shortcut buffer and the user style
-
-
-  if (!this.mathlist.isCollapsed() || /^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(selector)) {
-    this._resetKeystrokeBuffer();
-
-    this.style = {};
-  } // Render the mathlist
-
-
-  if (dirty) this._requestUpdate();
-  return handled;
-};
-/**
- * Perform a command, but:
- * * focus the mathfield
- * * provide haptic and audio feedback
- * This is used by the virtual keyboard when command keys (delete, arrows, etc..)
- * are pressed.
- * @param {string} command
- */
-
-
-MathField.prototype.performWithFeedback_ = function (command) {
-  this.focus();
-
-  if (this.config.keypressVibration && navigator.vibrate) {
-    navigator.vibrate(HAPTIC_FEEDBACK_DURATION);
-  } // Convert kebab case to camel case.
-
-
-  command = command.replace(/-\w/g, function (m) {
-    return m[1].toUpperCase();
-  });
-
-  if (command === 'moveToNextPlaceholder' || command === 'moveToPreviousPlaceholder' || command === 'complete') {
-    if (this.returnKeypressSound) {
-      this.returnKeypressSound.load();
-      this.returnKeypressSound.play().catch(function (err) {
-        return console.warn(err);
-      });
-    } else if (this.keypressSound) {
-      this.keypressSound.load();
-      this.keypressSound.play().catch(function (err) {
-        return console.warn(err);
-      });
-    }
-  } else if (command === 'deletePreviousChar' || command === 'deleteNextChar' || command === 'deletePreviousWord' || command === 'deleteNextWord' || command === 'deleteToGroupStart' || command === 'deleteToGroupEnd' || command === 'deleteToMathFieldStart' || command === 'deleteToMathFieldEnd') {
-    if (this.deleteKeypressSound) {
-      this.deleteKeypressSound.load();
-      this.deleteKeypressSound.play().catch(function (err) {
-        return console.warn(err);
-      });
-    } else if (this.keypressSound) {
-      this.keypressSound.load();
-      this.keypressSound.play().catch(function (err) {
-        return console.warn(err);
-      });
-    }
-  } else if (this.keypressSound) {
-    this.keypressSound.load();
-    this.keypressSound.play().catch(function (err) {
-      return console.warn(err);
-    });
-  }
-
-  return this.perform(command);
-};
-/**
- * Convert the atoms before the anchor to 'text' mode
- * @param {number} count - how many atoms back to look at
- * @param {function} until - callback to indicate when to stop
- */
-
-
-MathField.prototype.convertLastAtomsToText_ = function (count, until) {
-  if (typeof count === 'function') {
-    until = count;
-    count = Infinity;
-  }
-
-  if (count === undefined) count = Infinity;
-  var i = 0;
-  var done = false;
-  this.mathlist.contentWillChange();
-
-  while (!done) {
-    var atom = this.mathlist.sibling(i);
-    done = count === 0 || !atom || atom.mode !== 'math' || !(/mord|textord|mpunct/.test(atom.type) || atom.type === 'mop' && /[a-zA-Z]+/.test(atom.body)) || atom.superscript || atom.subscript || until && !until(atom);
-
-    if (!done) {
-      atom.applyStyle({
-        mode: 'text'
-      });
-      atom.latex = atom.body;
-    }
-
-    i -= 1;
-    count -= 1;
-  }
-
-  this.mathlist.contentDidChange();
-};
-/**
- * Convert the atoms before the anchor to 'math' mode 'mord'
- * @param {number} count - how many atoms back to look at
- * @param {function} until - callback to indicate when to stop
- */
-
-
-MathField.prototype.convertLastAtomsToMath_ = function (count, until) {
-  if (typeof count === 'function') {
-    until = count;
-    count = Infinity;
-  }
-
-  if (count === undefined) count = Infinity;
-  this.mathlist.contentWillChange();
-  var i = 0;
-  var done = false;
-
-  while (!done) {
-    var atom = this.mathlist.sibling(i);
-    done = count === 0 || !atom || atom.mode !== 'text' || atom.body === ' ' || until && !until(atom);
-
-    if (!done) {
-      atom.applyStyle({
-        mode: 'math',
-        type: 'mord'
-      });
-    }
-
-    i -= 1;
-    count -= 1;
-  }
-
-  this.removeIsolatedSpace_();
-  this.mathlist.contentDidChange();
-};
-/**
- * Going backwards from the anchor, if a text zone consisting of a single
- * space character is found (i.e. it is surrounded by math zone), 
- * remove it.
- */
-
-
-MathField.prototype.removeIsolatedSpace_ = function () {
-  var i = 0;
-
-  while (this.mathlist.sibling(i) && this.mathlist.sibling(i).mode === 'math') {
-    i -= 1;
-  } // If the atom before the last one converted is a
-  // text mode space, preceded by a math mode atom,
-  // remove the space
-
-
-  if (this.mathlist.sibling(i) && this.mathlist.sibling(i).mode === 'text' && this.mathlist.sibling(i).body === ' ' && (!this.mathlist.sibling(i - 1) || this.mathlist.sibling(i - 1).mode === 'math')) {
-    this.mathlist.contentWillChange();
-    this.mathlist.siblings().splice(i - 1, 1);
-    this.mathlist.contentDidChange(); // We need to adjust the selection after doing some surgery on the atoms list
-    // But we don't want to receive selection notification changes 
-    // which could have a side effect of changing the mode :(
-
-    var save = this.mathlist.suppressChangeNotifications;
-    this.mathlist.suppressChangeNotifications = true;
-    this.mathlist.setSelection(this.mathlist.anchorOffset() - 1);
-    this.mathlist.suppressChangeNotifications = save;
-  }
-};
-/**
- * Return the characters before anchor that could potentially be turned
- * into text mode.
- * This excludes things like 'mop' (e.g. \sin)
- * @return {string}
- * @method MathField#getTextBeforeAnchor_
- * @private
- */
-
-
-MathField.prototype.getTextBeforeAnchor_ = function () {
-  // Going backwards, accumulate
-  var result = '';
-  var i = 0;
-  var done = false;
-
-  while (!done) {
-    var atom = this.mathlist.sibling(i);
-    done = !(atom && (atom.mode === 'text' && !atom.type || atom.mode === 'math' && /mord|textord|mpunct/.test(atom.type)));
-
-    if (!done) {
-      result = atom.body + result;
-    }
-
-    i -= 1;
-  }
-
-  return result;
-};
-/**
- * Consider whether to switch mode give the content before the anchor
- * and the character being input
- * 
- * @param {string} keystroke
- * @param {Event} evt - a Event corresponding to the keystroke
- * @method MathField#smartMode_
- * @return {boolean} true if the mode should change
- * @private
- */
-
-
-MathField.prototype.smartMode_ = function (keystroke, evt) {
-  if (this.smartModeSuppressed) return false;
-  if (this.mathlist.endOffset() < this.mathlist.siblings().length - 1) return false;
-  if (!evt || evt.ctrlKey || evt.metaKey) return false;
-
-  var c = _editorKeyboard.default.eventToChar(evt);
-
-  if (c.length > 1) return false; // Backspace, Left, etc...
-
-  if (!this.mathlist.isCollapsed()) {
-    // There is a selection
-    if (this.mode === 'text') {
-      if (/[/_^]/.test(c)) return true;
-    }
-
-    return false;
-  }
-
-  var context = this.getTextBeforeAnchor_() + c;
-
-  if (this.mode === 'text') {
-    // We're in text mode. Should we switch to math?
-    if (keystroke === 'Esc' || /[/\\]/.test(c)) {
-      // If this is a command for a fraction,
-      // or the '\' command mode key
-      // switch to 'math'
-      return true;
-    }
-
-    if (/[\^_]/.test(c)) {
-      // If this is a superscript or subscript
-      // switch to 'math'
-      if (/(^|\s)[a-zA-Z][^_]$/.test(context)) {
-        // If left hand context is a single letter,
-        // convert it to math
-        this.convertLastAtomsToMath_(1);
-      }
-
-      return true;
-    } // If this is a closing matching fence
-    // switch to 'math' mode
-
-
-    var lFence = {
-      ')': '(',
-      '}': '{',
-      ']': '['
-    }[c];
-
-    if (lFence && this.mathlist.parent() && this.mathlist.parent().type === 'leftright' && this.mathlist.parent().leftDelim === lFence) {
-      return true;
-    }
-
-    if (/(^|[^a-zA-Z])(a|I)[ ]$/.test(context)) {
-      // Single letters that are valid words in the current language
-      // Do nothing. @todo: localization
-      return false;
-    }
-
-    if (/[\$\xA2-\xA5\u0E3F\u20A1\u20A4\u20A7-\u20A9\u20AC\u20B1\u20B9\u20BA]/.test(c)) {
-      // A currency symbol.
-      // Switch to math mode
-      return true;
-    }
-
-    if (/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(context)) {
-      // An isolated letter, followed by a space:
-      // Convert the letter to math, stay in text mode.
-      this.convertLastAtomsToMath_(1);
-      return false;
-    }
-
-    if (/[^0-9]\.[^0-9\s]$/.test(context)) {
-      // A period followed by something other than space or a digit
-      // and not preceded by a digit.
-      // We thought this was a text period, but turns out it's not
-      // Turn it into a \cdot
-      this.convertLastAtomsToMath_(1);
-      var atom = this.mathlist.sibling(0);
-      atom.body = '⋅'; // centered dot
-
-      atom.autoFontFamily = 'cmr';
-      atom.latex = '\\cdot';
-      return true;
-    }
-
-    if (/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(context)) {
-      // Single letter (x), followed by a non-letter (>, =...)
-      this.convertLastAtomsToMath_(1);
-      return true;
-    }
-
-    if (/\.[0-9]$/.test(context)) {
-      // If the new character is a digit, 
-      // and it was preceded by a dot (which may have been converted
-      // to text)
-      // turn the dot back into 'math'
-      this.convertLastAtomsToMath_(1);
-      return true;
-    }
-
-    if (/[(][0-9+\-.]$/.test(context)) {
-      // An open paren followed by a number
-      // Turn the paren back to math and switch.
-      this.convertLastAtomsToMath_(1);
-      return true;
-    }
-
-    if (/[(][a-z][,;]$/.test(context)) {
-      // An open paren followed by a single letter, then a "," or ";"
-      // Turn the paren back and letter to math and switch.
-      this.convertLastAtomsToMath_(2);
-      return true;
-    } // The tests above can look behind and change what had previously
-    // been entered. Now, let's just look at the typed character.
-
-
-    if (/[0-9+\-=><*|]$/.test(c)) {
-      // If this new character looks like a number,
-      // or a relational operator (=, <, >)
-      // or a "*" or "|"
-      // (note that <=, >=, etc... are handled separately as shortcuts)
-      // switch to 'math'
-      this.removeIsolatedSpace_();
-      return true;
-    }
-  } else {
-    // We're in math mode. Should we switch to text?
-    if (keystroke === 'Spacebar') {
-      this.convertLastAtomsToText_(function (a) {
-        return /[a-z][:,;.]$/.test(a.body);
-      });
-      return true;
-    }
-
-    if (/[a-zA-Z]{3,}$/.test(context) && !/(dxd|abc|xyz|uvw)$/.test(context)) {
-      // A sequence of three characters
-      // (except for some exceptions)
-      // Convert them to text.
-      this.convertLastAtomsToText_(function (a) {
-        return /[a-zA-Z:,;.]/.test(a.body);
-      });
-      return true;
-    }
-
-    if (/(^|\W)(if|If)$/i.test(context)) {
-      // @todo localization
-      this.convertLastAtomsToText_(1);
-      return true;
-    }
-
-    if (/\?|\./.test(c)) {
-      // If the last character is a period or question mark, 
-      // turn it to 'text'
-      return true;
-    }
-  }
-
-  return false;
-};
-/**
- * @param {string} keystroke
- * @param {Event} evt - optional, an Event corresponding to the keystroke
- * @method MathField#_onKeystroke
- * @private
- */
-
-
-MathField.prototype._onKeystroke = function (keystroke, evt) {
-  var _this3 = this;
-
-  // 1. Display the keystroke in the keystroke panel (if visible)
-  this._showKeystroke(keystroke); // 2. Reset the timer for the keystroke buffer reset
-
-
-  clearTimeout(this.keystrokeBufferResetTimer); // 3. Give a chance to the custom keystroke handler to intercept the event
-
-  if (this.config.onKeystroke && !this.config.onKeystroke(this, keystroke, evt)) {
-    if (evt && evt.preventDefault) {
-      evt.preventDefault();
-      evt.stopPropagation();
-    }
-
-    return false;
-  } // 4. Let's try to find a matching shortcut or command
-
-
-  var shortcut;
-  var stateIndex;
-  var selector;
-  var resetKeystrokeBuffer = false; // 4.1 Check if the keystroke, prefixed with the previously typed keystrokes,
-  // would match a long shortcut (i.e. '~~')
-  // Ignore the key if command or control is pressed (it may be a shortcut, 
-  // see 4.3)
-
-  if (this.mode !== 'command' && (!evt || !evt.ctrlKey && !evt.metaKey)) {
-    var c = _editorKeyboard.default.eventToChar(evt); // The Backspace key will be handled as a delete command later (5.4)
-    // const c = Keyboard.eventToChar(evt);
-
-
-    if (c !== 'Backspace') {
-      if (!c || c.length > 1) {
-        // It was a non-alpha character (PageUp, End, etc...)
-        this._resetKeystrokeBuffer();
-      } else {
-        // Find the longest substring that matches a shortcut
-        var candidate = this.keystrokeBuffer + c;
-        var i = 0;
-
-        while (!shortcut && i < candidate.length) {
-          var siblings = void 0;
-
-          if (this.keystrokeBufferStates[i]) {
-            var mathlist = new _editorEditableMathlist.default.EditableMathlist();
-            mathlist.root = _mathAtom.default.makeRoot('math', _parser.default.parseTokens(_lexer.default.tokenize(this.keystrokeBufferStates[i].latex), this.config.default, null, this.config.macros));
-            mathlist.setPath(this.keystrokeBufferStates[i].selection);
-            siblings = mathlist.siblings();
-          } else {
-            siblings = this.mathlist.siblings();
-          }
-
-          shortcut = _editorShortcuts.default.forString(this.mode, siblings, candidate.slice(i), this.config);
-          i += 1;
-        }
-
-        stateIndex = i - 1;
-        this.keystrokeBuffer += c;
-        this.keystrokeBufferStates.push(this.undoManager.save());
-
-        if (_editorShortcuts.default.startsWithString(candidate, this.config).length <= 1) {
-          resetKeystrokeBuffer = true;
-        } else {
-          if (this.config.inlineShortcutTimeout) {
-            // Set a timer to reset the shortcut buffer
-            this.keystrokeBufferResetTimer = setTimeout(function () {
-              _this3._resetKeystrokeBuffer();
-            }, this.config.inlineShortcutTimeout);
-          }
-        }
-      }
-    }
-  } // 4.2. Should we switch mode?
-  // Need to check this before determing if there's a valid shortcut
-  // since if we switch to math mode, we may want to apply the shortcut
-  // e.g. "slope = rise/run"
-
-
-  if (this.config.smartMode) {
-    var previousMode = this.mode;
-
-    if (shortcut) {
-      // If we found a shortcut (e.g. "alpha"),
-      // switch to math mode and insert it
-      this.mode = 'math';
-    } else if (this.smartMode_(keystroke, evt)) {
-      this.mode = {
-        'math': 'text',
-        'text': 'math'
-      }[this.mode];
-      selector = '';
-    } // Notify of mode change
-
-
-    if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') {
-      this.config.onModeChange(this, this.mode);
-    }
-  } // 4.3 Check if this matches a keystroke shortcut
-  // Need to check this **after** checking for inline shortcuts because
-  // shift+backquote is a keystroke that inserts "\~"", but "~~" is a 
-  // shortcut for "\approx" and needs to have priority over shift+backquote
-
-
-  if (!shortcut && !selector) {
-    selector = _editorShortcuts.default.selectorForKeystroke(this.mode, keystroke);
-  } // No shortcut :( We're done.
-
-
-  if (!shortcut && !selector) return true; // 5. Perform the action matching this shortcut
-  // 5.1 Remove any error indicator (wavy underline) on the current command 
-  // sequence (if there are any)
-
-  this.mathlist.decorateCommandStringAroundInsertionPoint(false); // 5.2 If we have a `moveAfterParent` selector (usually triggered with 
-  // `spacebar), and we're at the end of a smart fence, close the fence with 
-  // an empty (.) right delimiter
-
-  var parent = this.mathlist.parent();
-
-  if (selector === 'moveAfterParent' && parent && parent.type === 'leftright' && this.mathlist.endOffset() === this.mathlist.siblings().length - 1 && this.config.smartFence && this.mathlist._insertSmartFence('.')) {
-    // Pressing the space bar (moveAfterParent selector) when at the end 
-    // of a potential smartfence will close it as a semi-open fence
-    selector = '';
-
-    this._requestUpdate(); // Re-render the closed smartfence
-
-  } // 5.3 If this is the Spacebar and we're just before or right after 
-  // a text zone, insert the space inside the text zone
-
-
-  if (this.mode === 'math' && keystroke === 'Spacebar' && !shortcut) {
-    var nextSibling = this.mathlist.sibling(1);
-    var previousSibling = this.mathlist.sibling(-1);
-
-    if (nextSibling && nextSibling.mode === 'text' || previousSibling && previousSibling.mode === 'text') {
-      this.mathlist.insert(' ', {
-        mode: 'text'
-      });
-    }
-  } // 5.4 If there's a selector, perform it.
-
-
-  if (selector && !this.perform(selector) || shortcut) {
-    // // 6.5 insert the shortcut
-    if (shortcut) {
-      // If the shortcut is a mandatory escape sequence (\}, etc...) 
-      // don't make it undoable, this would result in syntactically incorrect
-      // formulas
-      if (!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(shortcut)) {
-        // To enable the substitution to be undoable,
-        // insert the character before applying the substitution
-        var _style = _objectSpread({}, this.mathlist.anchorStyle(), this.style);
-
-        this.mathlist.insert(_editorKeyboard.default.eventToChar(evt), {
-          suppressChangeNotifications: true,
-          mode: this.mode,
-          style: _style
-        });
-        var saveMode = this.mode; // Create a snapshot with the inserted character
-
-        this.undoManager.snapshotAndCoalesce(this.config); // Revert to the state before the beginning of the shortcut
-        // (restore doesn't change the undo stack)
-
-        this.undoManager.restore(this.keystrokeBufferStates[stateIndex], _objectSpread({}, this.config, {
-          suppressChangeNotifications: true
-        }));
-        this.mode = saveMode;
-      }
-
-      this.mathlist.contentWillChange();
-      var save = this.mathlist.suppressChangeNotifications;
-      this.mathlist.suppressChangeNotifications = true; // Insert the substitute, possibly as a smart fence
-
-      var style = _objectSpread({}, this.mathlist.anchorStyle(), this.style);
-
-      this.mathlist.insert(shortcut, {
-        format: 'latex',
-        mode: this.mode,
-        style: style,
-        smartFence: true
-      }); // Check if as a result of the substitution there is now an isolated
-      // (text mode) space (surrounded by math). In which case, remove it.
-
-      this.removeIsolatedSpace_(); // Switch (back) to text mode if the shortcut ended with a space
-
-      if (shortcut.endsWith(' ')) {
-        this.mode = 'text';
-        this.mathlist.insert(' ', {
-          mode: 'text',
-          style: style
-        });
-      }
-
-      this.mathlist.suppressChangeNotifications = save;
-      this.mathlist.contentDidChange();
-      this.undoManager.snapshot(this.config);
-
-      this._requestUpdate();
-
-      this._announce('replacement'); // If we're done with the shortcuts (found a unique one), reset it.
-
-
-      if (resetKeystrokeBuffer) {
-        this._resetKeystrokeBuffer();
-      }
-    }
-  } // 6. Make sure the insertion point is scrolled into view
-
-
-  this.scrollIntoView(); // 7. Keystroke has been handled, if it wasn't caught in the default
-  // case, so prevent propagation
-
-  if (evt && evt.preventDefault) {
-    evt.preventDefault();
-    evt.stopPropagation();
-  }
-
-  return false;
-};
-/**
- * This handler is invoked when text has been typed, pasted in or input with
- * an input method. As a result, `text` can be a sequence of characters to
- * be inserted.
- * @param {string} text
- * @param {object} options
- * @param {boolean} options.focus - If true, the mathfield will be focused
- * @param {boolean} options.feedback - If true, provide audio and haptic feedback
- * @param {boolean} options.simulateKeystroke - If true, generate some synthetic
- * keystrokes (useful to trigger inline shortcuts, for example)
- * @param {boolean} options.commandMode - If true, switch to command mode if
- * necessary, then insert text
- */
-
-
-MathField.prototype._onTypedText = function (text, options) {
-  options = options || {}; // Focus, then provide audio and haptic feedback
-
-  if (options.focus) this.focus();
-
-  if (options.feedback) {
-    if (this.config.keypressVibration && navigator.vibrate) {
-      navigator.vibrate(HAPTIC_FEEDBACK_DURATION);
-    }
-
-    if (this.keypressSound) {
-      this.keypressSound.load();
-      this.keypressSound.play().catch(function (err) {
-        return console.warn(err);
-      });
-    }
-  }
-
-  if (options.commandMode && this.mode !== 'command') {
-    this.switchMode_('command');
-  } // Remove any error indicator on the current command sequence
-  // (if there is one)
-
-
-  this.mathlist.decorateCommandStringAroundInsertionPoint(false);
-
-  if (options.simulateKeystroke) {
-    // for (const c of text) {
-    var c = text.charAt(0);
-
-    var ev = _editorKeyboard.default.charToEvent(c);
-
-    if (!this.$keystroke(_editorKeyboard.default.keyboardEventToString(ev), ev)) return; // }
-  } // Insert the specified text at the current insertion point.
-  // If the selection is not collapsed, the content will be deleted first.
-
-
-  var popoverText = '';
-  var displayArrows = false;
-
-  if (this.pasteInProgress) {
-    this.pasteInProgress = false; // This call was made in response to a paste event.
-    // Interpret `text` as a 'smart' expression (could be LaTeX, could be 
-    // UnicodeMath)
-
-    this.mathlist.insert(text, {
-      smartFence: this.config.smartFence,
-      mode: 'math'
-    });
-  } else {
-    var style = _objectSpread({}, this.mathlist.anchorStyle(), this.style); // Decompose the string into an array of graphemes.
-    // This is necessary to correctly process what is displayed as a single
-    // glyph (a grapheme) but which is composed of multiple Unicode 
-    // codepoints. This is the case in particular for some emojis, such as
-    // those with a skin tone modifier, the country flags emojis or 
-    // compound emojis such as the professional emojis, including the
-    // David Bowie emoji: 👨🏻‍🎤
-
-
-    var graphemes = _graphemeSplitter.default.splitGraphemes(text);
-
-    var _iteratorNormalCompletion3 = true;
-    var _didIteratorError3 = false;
-    var _iteratorError3 = undefined;
-
-    try {
-      for (var _iterator3 = graphemes[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-        var _c = _step3.value;
-
-        if (this.mode === 'command') {
-          this.mathlist.removeSuggestion();
-          this.suggestionIndex = 0;
-          var command = this.mathlist.extractCommandStringAroundInsertionPoint();
-
-          var suggestions = _definitions.default.suggest(command + _c);
-
-          displayArrows = suggestions.length > 1;
-
-          if (suggestions.length === 0) {
-            this.mathlist.insert(_c, {
-              mode: 'command'
-            });
-
-            if (/^\\[a-zA-Z\\*]+$/.test(command + _c)) {
-              // This looks like a command name, but not a known one
-              this.mathlist.decorateCommandStringAroundInsertionPoint(true);
-            }
-
-            _editorPopover.default.hidePopover(this);
-          } else {
-            this.mathlist.insert(_c, {
-              mode: 'command'
-            });
-
-            if (suggestions[0].match !== command + _c) {
-              this.mathlist.insertSuggestion(suggestions[0].match, -suggestions[0].match.length + command.length + 1);
-            }
-
-            popoverText = suggestions[0].match;
-          }
-        } else if (this.mode === 'math') {
-          // Some characters are mapped to commands. Handle them here.
-          // This is important to handle synthetic text input and
-          // non-US keyboards, on which, fop example, the '^' key is
-          // not mapped to  'Shift-Digit6'.
-          var selector = {
-            '^': 'moveToSuperscript',
-            '_': 'moveToSubscript',
-            ' ': 'moveAfterParent'
-          }[_c];
-
-          if (selector) {
-            if (selector === 'moveToSuperscript') {
-              if (this._superscriptDepth() >= this.config.scriptDepth[1]) {
-                this._announce('plonk');
-
-                return;
-              }
-            } else if (selector === 'moveToSubscript') {
-              if (this._subscriptDepth() >= this.config.scriptDepth[0]) {
-                this._announce('plonk');
-
-                return;
-              }
-            }
-
-            this.perform(selector);
-          } else {
-            if (this.config.smartSuperscript && this.mathlist.relation() === 'superscript' && /[0-9]/.test(_c) && this.mathlist.siblings().filter(function (x) {
-              return x.type !== 'first';
-            }).length === 0) {
-              // We are inserting a digit into an empty superscript
-              // If smartSuperscript is on, insert the digit, and 
-              // exit the superscript.
-              this.mathlist.insert(_c, {
-                mode: 'math',
-                style: style
-              });
-              this.mathlist.moveAfterParent_();
-            } else {
-              this.mathlist.insert(_c, {
-                mode: 'math',
-                style: style,
-                smartFence: this.config.smartFence
-              });
-            }
-          }
-        } else if (this.mode === 'text') {
-          this.mathlist.insert(_c, {
-            mode: 'text',
-            style: style
-          });
-        }
-      }
-    } catch (err) {
-      _didIteratorError3 = true;
-      _iteratorError3 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
-          _iterator3.return();
-        }
-      } finally {
-        if (_didIteratorError3) {
-          throw _iteratorError3;
-        }
-      }
-    }
-  }
-
-  if (this.mode !== 'command') {
-    this.undoManager.snapshotAndCoalesce(this.config);
-  } // Render the mathlist
-
-
-  this._requestUpdate(); // Make sure the insertion point is visible
-
-
-  this.scrollIntoView(); // Since the location of the popover depends on the position of the caret
-  // only show the popover after the formula has been rendered and the
-  // position of the caret calculated
-
-  _editorPopover.default.showPopoverWithLatex(this, popoverText, displayArrows);
-};
-/**
- * Return a hash (32-bit integer) representing the content of the mathfield
- * (but not the selection state)
- */
-
-
-MathField.prototype._hash = function () {
-  var result = 0;
-  var str = this.mathlist.root.toLatex(false);
-
-  for (var i = 0; i < str.length; i++) {
-    result = result * 31 + str.charCodeAt(i);
-    result = result | 0; // Force it to a 32-bit number
-  }
-
-  return Math.abs(result);
-};
-
-MathField.prototype._requestUpdate = function () {
-  var _this4 = this;
-
-  if (!this.dirty) {
-    this.dirty = true;
-    requestAnimationFrame(function (_) {
-      return _this4._render();
-    });
-  }
-};
-/**
- * Lay-out the math field and generate the DOM.
- *
- * This is usually done automatically, but if the font-size, or other geometric
- * attributes are modified, outside of MathLive, this function may need to be
- * called explicitly.
- *
- * @method MathField#render
- * @private
- */
-
-
-MathField.prototype._render = function (renderOptions) {
-  renderOptions = renderOptions || {};
-  this.dirty = false; //
-  // 1. Stop and reset read aloud state
-  //
-
-  if (!window.mathlive) window.mathlive = {}; //
-  // 2. Validate selection
-  //
-
-  if (!this.mathlist.anchor()) {
-    console.warn('Invalid selection, resetting it. ' + _editorMathpath.default.pathToString(this.mathlist.path));
-    this.mathlist.path = [{
-      relation: 'body',
-      offset: 0
-    }];
-  } //
-  // 3. Update selection state and blinking cursor (caret)
-  //
-
-
-  this.mathlist.forEach(function (a) {
-    a.caret = '';
-    a.isSelected = false;
-  });
-  var hasFocus = this.hasFocus();
-
-  if (this.mathlist.isCollapsed()) {
-    this.mathlist.anchor().caret = hasFocus ? this.mode : '';
-  } else {
-    this.mathlist.forEachSelected(function (a) {
-      a.isSelected = true;
-    });
-  } //
-  // 4. Create spans corresponding to the updated mathlist
-  //
-
-
-  var spans = _mathAtom.default.decompose({
-    mathstyle: 'displaystyle',
-    generateID: {
-      // Using the hash as a seed for the ID
-      // keeps the IDs the same until the content of the field changes.
-      seed: this._hash(),
-      // The `groupNumbers` flag indicates that extra spans should be generated
-      // to represent group of atoms, for example, a span to group
-      // consecutive digits to represent a number.
-      groupNumbers: renderOptions.forHighlighting
-    },
-    macros: this.config.macros
-  }, this.mathlist.root); //
-  // 5. Construct struts around the spans
-  //
-
-
-  var base = _span.default.makeSpan(spans, 'ML__base');
-
-  base.attributes = {
-    // Sometimes Google Translate kicks in an attempts to 'translate' math
-    // This doesn't work very well, so turn off translate
-    'translate': 'no',
-    // Hint to screen readers to not attempt to read this span
-    // They should use instead the 'aria-label' below.
-    'aria-hidden': 'true'
-  };
-
-  var topStrut = _span.default.makeSpan('', 'ML__strut');
-
-  topStrut.setStyle('height', base.height, 'em');
-  var struts = [topStrut];
-
-  if (base.depth !== 0) {
-    var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom');
-
-    bottomStrut.setStyle('height', base.height + base.depth, 'em');
-    bottomStrut.setStyle('vertical-align', -base.depth, 'em');
-    struts.push(bottomStrut);
-  }
-
-  struts.push(base);
-
-  var wrapper = _span.default.makeSpan(struts, 'ML__mathlive'); //
-  // 6. Generate markup and accessible node
-  //
-
-
-  this.field.innerHTML = wrapper.toMarkup(0, this.config.horizontalSpacingScale);
-  this.field.classList.toggle('ML__focused', hasFocus); // Probably want to generate content on the fly depending on what to speak
-
-  this.accessibleNode.innerHTML = "<math xmlns='http://www.w3.org/1998/Math/MathML'>" + _mathAtom.default.toMathML(this.mathlist.root, this.config) + "</math>"; //this.ariaLiveText.textContent = "";
-  //
-  // 7. Calculate selection rectangle
-  //
-
-  var selectionRect = this._getSelectionBounds();
-
-  if (selectionRect) {
-    var selectionElement = document.createElement('div');
-    selectionElement.classList.add('ML__selection');
-    selectionElement.style.position = 'absolute';
-    selectionElement.style.left = selectionRect.left + 'px';
-    selectionElement.style.top = selectionRect.top + 'px';
-    selectionElement.style.width = Math.ceil(selectionRect.right - selectionRect.left) + 'px';
-    selectionElement.style.height = Math.ceil(selectionRect.bottom - selectionRect.top - 1) + 'px';
-    this.field.insertBefore(selectionElement, this.field.childNodes[0]);
-  }
-};
-
-MathField.prototype._onPaste = function () {
-  // Make note we're in the process of pasting. The subsequent call to
-  // onTypedText() will take care of interpreting the clipboard content
-  this.pasteInProgress = true;
-  return true;
-};
-
-MathField.prototype._onCut = function () {
-  // Clearing the selection will have the side effect of clearing the
-  // content of the textarea. However, the textarea value is what will
-  // be copied to the clipboard, so defer the clearing of the selection
-  // to later, after the cut operation has been handled.
-  setTimeout(function () {
-    this.clearSelection();
-
-    this._requestUpdate();
-  }.bind(this), 0);
-  return true;
-};
-
-MathField.prototype._onCopy = function (e) {
-  if (this.mathlist.isCollapsed()) {
-    e.clipboardData.setData('text/plain', this.$text('latex-expanded'));
-    e.clipboardData.setData('application/json', this.$text('json'));
-    e.clipboardData.setData('application/xml', this.$text('mathML'));
-  } else {
-    e.clipboardData.setData('text/plain', this.$selectedText('latex-expanded'));
-    e.clipboardData.setData('application/json', this.$selectedText('json'));
-    e.clipboardData.setData('application/xml', this.$selectedText('mathML'));
-  } // Prevent the current document selection from being written to the clipboard.
-
-
-  e.preventDefault();
-};
-
-MathField.prototype.formatMathlist = function (root, format) {
-  format = format || 'latex';
-  var result = '';
-
-  if (format === 'latex' || format === 'latex-expanded') {
-    result = root.toLatex(format === 'latex-expanded');
-  } else if (format === 'mathML') {
-    result = root.toMathML(this.config);
-  } else if (format === 'spoken') {
-    result = _mathAtom.default.toSpeakableText(root, this.config);
-  } else if (format === 'spoken-text') {
-    var save = this.config.textToSpeechMarkup;
-    this.config.textToSpeechMarkup = '';
-    result = _mathAtom.default.toSpeakableText(root, this.config);
-    this.config.textToSpeechMarkup = save;
-  } else if (format === 'spoken-ssml') {
-    var _save = this.config.textToSpeechMarkup;
-    this.config.textToSpeechMarkup = 'ssml';
-    result = _mathAtom.default.toSpeakableText(root, this.config);
-    this.config.textToSpeechMarkup = _save;
-  } else if (format === 'json') {
-    var json = _mathAtom.default.toAST(root, this.config);
-
-    result = JSON.stringify(json);
-  } else if (format === 'ASCIIMath') {
-    result = (0, _outputASCIIMath.toASCIIMath)(root, this.config);
-  } else {
-    console.warn('Unknown format :', format);
-  }
-
-  return result;
-}; //
-// PUBLIC API
-//
-
-/**
- * Return a textual representation of the mathfield.
- * @param {string} [format='latex']. One of
- *    * `'latex'`
- *    * `'latex-expanded'` : all macros are recursively expanded to their definition
- *    * `'spoken'`
- *    * `'spoken-text'`
- *    * `'spoken-ssml'`
- *    * `'mathML'`
- *    * `'json'`
- * @return {string}
- * @method MathField#$text
- */
-
-
-MathField.prototype.text = MathField.prototype.$text = function (format) {
-  return this.formatMathlist(this.mathlist.root, format);
-};
-/**
- * Return a textual representation of the selection in the mathfield.
- * @param {string} [format='latex']. One of
- *    * `'latex'`
- *    * `'latex-expanded'` : all macros are recursively expanded to their definition
- *    * `'spoken'`
- *    * `'spoken-text'`
- *    * `'spoken-ssml'`
- *    * `'mathML'`
- *    * `'json'`
- * @return {string}
- * @method MathField#$selectedText
- */
-
-
-MathField.prototype.selectedText = MathField.prototype.$selectedText = function (format) {
-  var atoms = this.mathlist.getSelectedAtoms();
-  if (!atoms) return '';
-
-  var root = _mathAtom.default.makeRoot('math', atoms);
-
-  return this.formatMathlist(root, format);
-};
-/**
- * Return true if the length of the selection is 0, that is, if it is a single
- * insertion point.
- * @return {boolean}
- * @method MathField#$selectionIsCollapsed
- */
-
-
-MathField.prototype.selectionIsCollapsed = MathField.prototype.$selectionIsCollapsed = function () {
-  return this.mathlist.isCollapsed();
-};
-/**
- * Return the depth of the selection group. If the selection is at the root level,
- * returns 0. If the selection is a portion of the numerator of a fraction
- * which is at the root level, return 1. Note that in that case, the numerator
- * would be the "selection group".
- * @return {number}
- * @method MathField#$selectionDepth
- */
-
-
-MathField.prototype.selectionDepth = MathField.prototype.$selectionDepth = function () {
-  return this.mathlist.path.length;
-};
-
-MathField.prototype._superscriptDepth = function () {
-  var result = 0;
-  var i = 0;
-  var atom = this.mathlist.ancestor(i);
-  var wasSuperscript = false;
-
-  while (atom) {
-    if (atom.superscript || atom.subscript) {
-      result += 1;
-    }
-
-    if (atom.superscript) {
-      wasSuperscript = true;
-    } else if (atom.subscript) {
-      wasSuperscript = false;
-    }
-
-    i += 1;
-    atom = this.mathlist.ancestor(i);
-  }
-
-  return wasSuperscript ? result : 0;
-};
-
-MathField.prototype._subscriptDepth = function () {
-  var result = 0;
-  var i = 0;
-  var atom = this.mathlist.ancestor(i);
-  var wasSubscript = false;
-
-  while (atom) {
-    if (atom.superscript || atom.subscript) {
-      result += 1;
-    }
-
-    if (atom.superscript) {
-      wasSubscript = false;
-    } else if (atom.subscript) {
-      wasSubscript = true;
-    }
-
-    i += 1;
-    atom = this.mathlist.ancestor(i);
-  }
-
-  return wasSubscript ? result : 0;
-};
-/**
- * Return true if the selection starts at the beginning of the selection group.
- * @return {boolean}
- * @method MathField#$selectionAtStart
- */
-
-
-MathField.prototype.selectionAtStart = MathField.prototype.$selectionAtStart = function () {
-  return this.mathlist.startOffset() === 0;
-};
-/**
- * Return true if the selection extends to the end of the selection group.
- * @return {boolean}
- * @method MathField#$selectionAtEnd
- */
-
-
-MathField.prototype.selectionAtEnd = MathField.prototype.$selectionAtEnd = function () {
-  return this.mathlist.endOffset() >= this.mathlist.siblings().length - 1;
-};
-/**
- *  True if the entire group is selected
- * */
-
-
-MathField.prototype.groupIsSelected = function () {
-  return this.mathlist.startOffset() === 0 && this.mathlist.endOffset() >= this.mathlist.siblings().length - 1;
-};
-/**
- * If `text` is not empty, sets the content of the mathfield to the
- * text interpreted as a LaTeX expression.
- * If `text` is empty (or omitted), return the content of the mahtfield as a
- * LaTeX expression.
- * @param {string} text
- * 
- * @param {Object.<string, any>} options
- * @param {boolean} options.suppressChangeNotifications - If true, the
- * handlers for the contentWillChange and contentDidChange notifications will 
- * not be invoked. Default `false`.
- * 
- * @return {string}
- * @method MathField#$latex
- */
-
-
-MathField.prototype.latex = MathField.prototype.$latex = function (text, options) {
-  if (text) {
-    var oldValue = this.mathlist.root.toLatex();
-
-    if (text !== oldValue) {
-      options = options || {};
-      this.mathlist.insert(text, Object.assign({}, this.config, {
-        insertionMode: 'replaceAll',
-        selectionMode: 'after',
-        format: 'latex',
-        mode: 'math',
-        suppressChangeNotifications: options.suppressChangeNotifications
-      }));
-      this.undoManager.snapshot(this.config);
-
-      this._requestUpdate();
-    }
-
-    return text;
-  } // Return the content as LaTeX
-
-
-  return this.mathlist.root.toLatex();
-};
-/**
- * Return the DOM element associated with this mathfield.
- * 
- * Note that `this.$el().mathfield = this`
- * @return {Element}
- * @method MathField#$el
- */
-
-
-MathField.prototype.el = MathField.prototype.$el = function () {
-  return this.element;
-};
-
-MathField.prototype.undo_ = MathField.prototype.undo = function () {
-  this.complete_(); // Undo to the previous state
-
-  this.undoManager.undo(this.config);
-  return true;
-};
-
-MathField.prototype.redo_ = MathField.prototype.redo = function () {
-  this.complete_();
-  this.undoManager.redo(this.config);
-  return true;
-};
-
-MathField.prototype.scrollIntoView_ = MathField.prototype.scrollIntoView = function () {
-  // If a render is pending, do it now to make sure we have correct layout
-  // and caret position
-  if (this.dirty) {
-    this._render();
-  }
-
-  var pos = this._getCaretPosition();
-
-  var fieldBounds = this.field.getBoundingClientRect();
-
-  if (!pos) {
-    var selectionBounds = this._getSelectionBounds();
-
-    if (selectionBounds) {
-      pos = {
-        x: selectionBounds.right + fieldBounds.left - this.field.scrollLeft,
-        y: selectionBounds.top + fieldBounds.top - this.field.scrollTop
-      };
-    }
-  }
-
-  if (pos) {
-    var x = pos.x - window.scrollX;
-
-    if (x < fieldBounds.left) {
-      this.field.scroll({
-        top: 0,
-        left: x - fieldBounds.left + this.field.scrollLeft - 20,
-        behavior: 'smooth'
-      });
-    } else if (x > fieldBounds.right) {
-      this.field.scroll({
-        top: 0,
-        left: x - fieldBounds.right + this.field.scrollLeft + 20,
-        behavior: 'smooth'
-      });
-    }
-  }
-};
-
-MathField.prototype.scrollToStart_ = MathField.prototype.scrollToStart = function () {
-  this.field.scroll(0, 0);
-};
-
-MathField.prototype.scrollToEnd_ = MathField.prototype.scrollToEnd = function () {
-  var fieldBounds = this.field.getBoundingClientRect();
-  this.field.scroll(fieldBounds.left - window.scrollX, 0);
-};
-/**
- *
- * @method MathField#enterCommandMode_
- * @private
- */
-
-
-MathField.prototype.enterCommandMode_ = function () {
-  this.switchMode_('command');
-};
-
-MathField.prototype.copyToClipboard_ = function () {
-  this.focus(); // If the selection is empty, select the entire field before
-  // copying it.
-
-  if (this.mathlist.isCollapsed()) {
-    this.select();
-  }
-
-  document.execCommand('copy');
-  return false;
-};
-
-MathField.prototype.cutToClipboard_ = function () {
-  this.focus();
-  document.execCommand('cut');
-  return true;
-};
-
-MathField.prototype.pasteFromClipboard_ = function () {
-  this.focus();
-  document.execCommand('paste');
-  return true;
-};
-/**
- * This method can be invoked as a selector with {@linkcode MathField#$perform $perform("insert")}
- * or called explicitly.
- * 
- * It will insert the specified block of text at the current insertion point,
- * according to the insertion mode specified. 
- * 
- * After the insertion, the selection will be set according to the `selectionMode`.
- * @param {string} s - The text to be inserted
- * 
- * @param {Object.<string, any>} [options={}]
- * 
- * @param {string} options.selectionMode - Describes where the selection
- * will be after the insertion:
- *    * `'placeholder'`: the selection will be the first available placeholder
- * in the item that has been inserted (default)
- *    * `'after'`: the selection will be an insertion point after the item that
- * has been inserted,
- *    * `'before'`: the selection will be an insertion point before
- * the item that has been inserted
- *    * `'item'`: the item that was inserted will be selected
- * 
- * @param {string} options.mode - The mode (`'text'` or `'math'`) to use. Default
- * is the current mode.
- *
- * @param {string} options.format - The format of the string `s`:
- *    * `'auto'`: the string is interpreted as a latex fragment or command)
- * (default)
- *    * `'latex'`: the string is interpreted strictly as a latex fragment
- *
- * @param {boolean} options.focus - If true, the mathfield will be focused after 
- * the insertion
- * 
- * @param {boolean} options.feedback - If true, provide audio and haptic feedback
- * 
- * @param {string} options.mode - 'text' or 'math'. If empty, the current mode
- * is used (default)
- * 
- * @param {boolean} options.resetStyle - If true, the style after the insertion
- * is the same as the style before (if false, the style after the 
- * insertion is the style of the last inserted atom).
- *
- * @method MathField#$insert
- */
-
-
-MathField.prototype.insert_ = MathField.prototype.insert = MathField.prototype.$insert = function (s, options) {
-  if (typeof s === 'string' && s.length > 0) {
-    options = options || {};
-    if (options.focus) this.focus();
-
-    if (options.feedback) {
-      if (this.config.keypressVibration && navigator.vibrate) {
-        navigator.vibrate(HAPTIC_FEEDBACK_DURATION);
-      }
-
-      if (this.keypressSound) {
-        this.keypressSound.load();
-        this.keypressSound.play();
-      }
-    }
-
-    if (s === '\\\\') {
-      // This string is interpreted as an "insert row after" command
-      this.mathlist.addRowAfter_();
-    } else if (s === '&') {
-      this.mathlist.addColumnAfter_();
-    } else {
-      var savedStyle = this.style;
-      this.mathlist.insert(s, _objectSpread({
-        mode: this.mode,
-        style: this.mathlist.anchorStyle()
-      }, options));
-
-      if (options.resetStyle) {
-        this.style = savedStyle;
-      }
-    }
-
-    this.undoManager.snapshot(this.config);
-
-    this._requestUpdate();
-
-    return true;
-  }
-
-  return false;
-};
-
-MathField.prototype.switchMode_ = function (mode, prefix, suffix) {
-  this._resetKeystrokeBuffer(); // Suppress (temporarily) smart mode if switching to/from text or math
-  // This prevents switching to/from command mode from supressing smart mode.
-
-
-  this.smartModeSuppressed = /text|math/.test(this.mode) && /text|math/.test(mode);
-
-  if (prefix) {
-    this.insert(prefix, {
-      format: 'latex',
-      mode: {
-        'math': 'text',
-        'text': 'math'
-      }[mode]
-    });
-  } // Remove any error indicator on the current command sequence (if there is one)
-
-
-  this.mathlist.decorateCommandStringAroundInsertionPoint(false);
-
-  if (mode === 'command') {
-    this.mathlist.removeSuggestion();
-
-    _editorPopover.default.hidePopover(this);
-
-    this.suggestionIndex = 0; // Switch to the command mode keyboard layer
-
-    if (this.virtualKeyboardVisible) {
-      this.switchKeyboardLayer_('lower-command');
-    }
-
-    this.mathlist.insert("\x1B", {
-      mode: 'math'
-    });
-  } else {
-    this.mode = mode;
-  }
-
-  if (suffix) {
-    this.insert(suffix, {
-      format: 'latex',
-      mode: mode
-    });
-  } // Notify of mode change
-
-
-  if (typeof this.config.onModeChange === 'function') {
-    this.config.onModeChange(this, this.mode);
-  }
-
-  this._requestUpdate();
-};
-/**
- * When in command mode, insert the select command and return to math mode
- * If escape is true, the command is discared.
- * @param {object} options
- * @param {boolean} options.discard if true, the command is discarded and the 
- * mode switched back to math
- * @param {boolean} options.acceptSuggestion if true, accept the suggestion to 
- * complete the command. Otherwise, only use what has been entered so far. 
- * @method MathField#complete_
- * @private
- */
-
-
-MathField.prototype.complete_ = function (options) {
-  options = options || {};
-
-  _editorPopover.default.hidePopover(this);
-
-  if (options.discard) {
-    this.mathlist.spliceCommandStringAroundInsertionPoint(null);
-    this.switchMode_('math');
-    return true;
-  }
-
-  var command = this.mathlist.extractCommandStringAroundInsertionPoint(!options.acceptSuggestion);
-
-  if (command) {
-    if (command === '\\(' || command === '\\)') {
-      this.mathlist.spliceCommandStringAroundInsertionPoint([]);
-      this.mathlist.insert(command.slice(1), {
-        mode: this.mode
-      });
-    } else {
-      // We'll assume we want to insert in math mode
-      // (commands are only available in math mode)
-      var mode = 'math';
-
-      if (_definitions.default.commandAllowed(mode, command)) {
-        var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(command), mode, null, this.config.macros);
-
-        this.mathlist.spliceCommandStringAroundInsertionPoint(mathlist);
-      } else {
-        // This wasn't a simple function or symbol.
-        // Interpret the input as LaTeX code
-        var _mathlist = _parser.default.parseTokens(_lexer.default.tokenize(command), mode, null, this.config.macros);
-
-        if (_mathlist) {
-          this.mathlist.spliceCommandStringAroundInsertionPoint(_mathlist);
-        } else {
-          this.mathlist.decorateCommandStringAroundInsertionPoint(true);
-        }
-      }
-    }
-
-    this.undoManager.snapshot(this.config);
-
-    this._announce('replacement');
-
-    return true;
-  }
-
-  return false;
-};
-
-MathField.prototype._updateSuggestion = function () {
-  this.mathlist.positionInsertionPointAfterCommitedCommand();
-  this.mathlist.removeSuggestion();
-  var command = this.mathlist.extractCommandStringAroundInsertionPoint();
-
-  var suggestions = _definitions.default.suggest(command);
-
-  if (suggestions.length === 0) {
-    _editorPopover.default.hidePopover(this);
-
-    this.mathlist.decorateCommandStringAroundInsertionPoint(true);
-  } else {
-    var index = this.suggestionIndex % suggestions.length;
-    var l = command.length - suggestions[index].match.length;
-
-    if (l !== 0) {
-      this.mathlist.insertSuggestion(suggestions[index].match, l);
-    }
-
-    _editorPopover.default.showPopoverWithLatex(this, suggestions[index].match, suggestions.length > 1);
-  }
-
-  this._requestUpdate();
-};
-
-MathField.prototype.nextSuggestion_ = function () {
-  this.suggestionIndex += 1; // The modulo of the suggestionIndex is used to determine which suggestion
-  // to display, so no need to worry about rolling over.
-
-  this._updateSuggestion();
-
-  return false;
-};
-
-MathField.prototype.previousSuggestion_ = function () {
-  this.suggestionIndex -= 1;
-
-  if (this.suggestionIndex < 0) {
-    // We're rolling over
-    // Get the list of suggestions, so we can know how many there are
-    // Not very efficient, but simple.
-    this.mathlist.removeSuggestion();
-    var command = this.mathlist.extractCommandStringAroundInsertionPoint();
-
-    var suggestions = _definitions.default.suggest(command);
-
-    this.suggestionIndex = suggestions.length - 1;
-  }
-
-  this._updateSuggestion();
-
-  return false;
-};
-/**
- * Attach event handlers to an element so that it will react by executing
- * a command when pressed.
- * `'command'` can be:
- * - a string, a single selector
- * - an array, whose first element is a selector followed by one or more arguments.
- * - an object, with the following keys:
- *    * 'default': command performed on up, with a down + up sequence with no
- *      delay between down and up
- *    * 'alt', 'shift', 'altshift' keys: command performed on up with
- *      one of these modifiers pressed
- *    * 'pressed': command performed on 'down'
- *    * 'pressAndHoldStart': command performed after a tap/down followed by a
- * delay (optional)
- *    * 'pressAndHoldEnd': command performed on up, if there was a delay
- *     between down and up, if absent, 'default' is performed
- * The value of the keys specify which selector (string
- * or array) to perform depending on the keyboard state when the button is
- * pressed.
- *
- * The 'pressed' and 'active' classes will get added to
- * the element, as the :hover and :active pseudo-classes are not reliable
- * (at least on Chrome Android).
- *
- * @param {Element} el
- * @param {object|string} command
- */
-
-
-MathField.prototype._attachButtonHandlers = function (el, command) {
-  var that = this;
-
-  if (_typeof(command) === 'object' && (command.default || command.pressed)) {
-    // Attach the default (no modifiers pressed) command to the element
-    if (command.default) {
-      el.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(command.default));
-    }
-
-    if (command.alt) {
-      el.setAttribute('data-' + this.config.namespace + 'command-alt', JSON.stringify(command.alt));
-    }
-
-    if (command.altshift) {
-      el.setAttribute('data-' + this.config.namespace + 'command-altshift', JSON.stringify(command.altshift));
-    }
-
-    if (command.shift) {
-      el.setAttribute('data-' + this.config.namespace + 'command-shift', JSON.stringify(command.shift));
-    } // .pressed: command to perform when the button is pressed (i.e.
-    // on mouse down/touch). Otherwise the command is performed when
-    // the button is released
-
-
-    if (command.pressed) {
-      el.setAttribute('data-' + this.config.namespace + 'command-pressed', JSON.stringify(command.pressed));
-    }
-
-    if (command.pressAndHoldStart) {
-      el.setAttribute('data-' + this.config.namespace + 'command-pressAndHoldStart', JSON.stringify(command.pressAndHoldStart));
-    }
-
-    if (command.pressAndHoldEnd) {
-      el.setAttribute('data-' + this.config.namespace + 'command-pressAndHoldEnd', JSON.stringify(command.pressAndHoldEnd));
-    }
-  } else {
-    // We need to turn the command into a string to attach it to the dataset
-    // associated with the button (the command could be an array made of a
-    // selector and one or more parameters)
-    el.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(command));
-  }
-
-  var pressHoldStart;
-  var pressHoldElement;
-  var touchID;
-  var syntheticTarget; // Target while touch move
-
-  var pressAndHoldTimer;
-  on(el, 'mousedown touchstart:passive', function (ev) {
-    if (ev.type !== 'mousedown' || ev.buttons === 1) {
-      // The primary button was pressed or the screen was tapped.
-      ev.stopPropagation();
-      ev.preventDefault();
-      el.classList.add('pressed');
-      pressHoldStart = Date.now(); // Record the ID of the primary touch point for tracking on touchmove
-
-      if (ev.type === 'touchstart') touchID = ev.changedTouches[0].identifier; // Parse the JSON to get the command (and its optional arguments)
-      // and perform it immediately
-
-      var _command2 = el.getAttribute('data-' + that.config.namespace + 'command-pressed');
-
-      if (_command2) {
-        that.perform(JSON.parse(_command2));
-      } // If there is a `press and hold start` command, perform it
-      // after a delay, if we're still pressed by then.
-
-
-      var pressAndHoldStartCommand = el.getAttribute('data-' + that.config.namespace + 'command-pressAndHoldStart');
-
-      if (pressAndHoldStartCommand) {
-        pressHoldElement = el;
-        if (pressAndHoldTimer) clearTimeout(pressAndHoldTimer);
-        pressAndHoldTimer = window.setTimeout(function () {
-          if (el.classList.contains('pressed')) {
-            that.perform(JSON.parse(pressAndHoldStartCommand));
-          }
-        }, 300);
-      }
-    }
-  });
-  on(el, 'mouseleave touchcancel', function () {
-    el.classList.remove('pressed'); // let command = el.getAttribute('data-' + that.config.namespace +
-    //     'command-pressAndHoldEnd');
-    // const now = Date.now();
-    // if (command && now > pressHoldStart + 300) {
-    //     that.perform(JSON.parse(command));
-    // }
-  });
-  on(el, 'touchmove:passive', function (ev) {
-    // Unlike with mouse tracking, touch tracking only sends events
-    // to the target that was originally tapped on. For consistency,
-    // we want to mimic the behavior of the mouse interaction by
-    // tracking the touch events and dispatching them to potential targets
-    ev.preventDefault();
-
-    for (var i = 0; i < ev.changedTouches.length; i++) {
-      if (ev.changedTouches[i].identifier === touchID) {
-        // Found a touch matching our primary/tracked touch
-        var target = document.elementFromPoint(ev.changedTouches[i].clientX, ev.changedTouches[i].clientY);
-
-        if (target !== syntheticTarget && syntheticTarget) {
-          syntheticTarget.dispatchEvent(new MouseEvent('mouseleave'), {
-            bubbles: true
-          });
-          syntheticTarget = null;
-        }
-
-        if (target) {
-          syntheticTarget = target;
-          target.dispatchEvent(new MouseEvent('mouseenter', {
-            bubbles: true,
-            buttons: 1
-          }));
-        }
-      }
-    }
-  });
-  on(el, 'mouseenter', function (ev) {
-    if (ev.buttons === 1) {
-      el.classList.add('pressed');
-    }
-  });
-  on(el, 'mouseup touchend click', function (ev) {
-    if (syntheticTarget) {
-      ev.stopPropagation();
-      ev.preventDefault();
-      var target = syntheticTarget;
-      syntheticTarget = null;
-      target.dispatchEvent(new MouseEvent('mouseup', {
-        bubbles: true
-      }));
-      return;
-    }
-
-    el.classList.remove('pressed');
-    el.classList.add('active');
-
-    if (ev.type === 'click' && ev.detail !== 0) {
-      // This is a click event triggered by a mouse interaction
-      // (and not a keyboard interaction)
-      // Ignore it, we'll handle the mouseup (or touchend) instead.
-      ev.stopPropagation();
-      ev.preventDefault();
-      return;
-    } // Since we want the active state to be visible for a while,
-    // use a timer to remove it after a short delay
-
-
-    window.setTimeout(function () {
-      el.classList.remove('active');
-    }, 150);
-    var command = el.getAttribute('data-' + that.config.namespace + 'command-pressAndHoldEnd');
-    var now = Date.now(); // If the button has not been pressed for very long or if we were
-    // not the button that started the press and hold, don't consider
-    // it a press-and-hold.
-
-    if (el !== pressHoldElement || now < pressHoldStart + 300) {
-      command = undefined;
-    }
-
-    if (!command && ev.altKey && ev.shiftKey) {
-      command = el.getAttribute('data-' + that.config.namespace + 'command-altshift');
-    }
-
-    if (!command && ev.altKey) {
-      command = el.getAttribute('data-' + that.config.namespace + 'command-alt');
-    }
-
-    if (!command && ev.shiftKey) {
-      command = el.getAttribute('data-' + that.config.namespace + 'command-shift');
-    }
-
-    if (!command) {
-      command = el.getAttribute('data-' + that.config.namespace + 'command');
-    }
-
-    if (command) {
-      // Parse the JSON to get the command (and its optional arguments)
-      // and perform it
-      that.perform(JSON.parse(command));
-    }
-
-    ev.stopPropagation();
-    ev.preventDefault();
-  });
-};
-
-MathField.prototype._makeButton = function (label, cls, ariaLabel, command) {
-  var button = document.createElement('span');
-  button.innerHTML = label;
-  if (cls) button.classList.add([].slice.call(cls.split(' ')));
-  if (ariaLabel) button.setAttribute('aria-label', ariaLabel);
-
-  this._attachButtonHandlers(button, command);
-
-  return button;
-};
-/**
- * Alternate options are displayed when a key on the virtual keyboard is pressed
- * and held.
- *
- */
-
-
-MathField.prototype.showAlternateKeys_ = function (keycap, altKeys) {
-  var altContainer = getSharedElement('mathlive-alternate-keys-panel', 'ML__keyboard alternate-keys');
-
-  if (this.virtualKeyboard.classList.contains('material')) {
-    altContainer.classList.add('material');
-  }
-
-  if (altKeys.length >= 7) {
-    // Width 4
-    altContainer.style.width = '286px';
-  } else if (altKeys.length === 4 || altKeys.length === 2) {
-    // Width 2
-    altContainer.style.width = '146px';
-  } else if (altKeys.length === 1) {
-    // Width 1
-    altContainer.style.width = '86px';
-  } else {
-    // Width 3
-    altContainer.style.width = '146px';
-  } // Reset container height
-
-
-  altContainer.style.height = 'auto';
-  var markup = '';
-  var _iteratorNormalCompletion4 = true;
-  var _didIteratorError4 = false;
-  var _iteratorError4 = undefined;
-
-  try {
-    for (var _iterator4 = altKeys[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
-      var altKey = _step4.value;
-      markup += '<li';
-
-      if (typeof altKey === 'string') {
-        markup += ' data-latex="' + altKey.replace(/"/g, '&quot;') + '"';
-      } else {
-        if (altKey.latex) {
-          markup += ' data-latex="' + altKey.latex.replace(/"/g, '&quot;') + '"';
-        }
-
-        if (altKey.content) {
-          markup += ' data-content="' + altKey.content.replace(/"/g, '&quot;') + '"';
-        }
-
-        if (altKey.insert) {
-          markup += ' data-insert="' + altKey.insert.replace(/"/g, '&quot;') + '"';
-        }
-
-        if (altKey.command) {
-          markup += " data-command='" + altKey.command.replace(/"/g, '&quot;') + "'";
-        }
-
-        if (altKey.aside) {
-          markup += ' data-aside="' + altKey.aside.replace(/"/g, '&quot;') + '"';
-        }
-
-        if (altKey.classes) {
-          markup += ' data-classes="' + altKey.classes + '"';
-        }
-      }
-
-      markup += '>';
-      markup += altKey.label || '';
-      markup += '</li>';
-    }
-  } catch (err) {
-    _didIteratorError4 = true;
-    _iteratorError4 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
-        _iterator4.return();
-      }
-    } finally {
-      if (_didIteratorError4) {
-        throw _iteratorError4;
-      }
-    }
-  }
-
-  markup = '<ul>' + markup + '</ul>';
-  altContainer.innerHTML = markup;
-
-  _editorVirtualKeyboard.default.makeKeycap(this, altContainer.getElementsByTagName('li'), 'performAlternateKeys');
-
-  var keycapEl = this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="' + keycap + '"]');
-  var position = keycapEl.getBoundingClientRect();
-
-  if (position) {
-    if (position.top - altContainer.clientHeight < 0) {
-      // altContainer.style.maxWidth = '320px';  // Up to six columns
-      altContainer.style.width = 'auto';
-
-      if (altKeys.length <= 6) {
-        altContainer.style.height = '56px'; // 1 row
-      } else if (altKeys.length <= 12) {
-        altContainer.style.height = '108px'; // 2 rows
-      } else {
-        altContainer.style.height = '205px'; // 3 rows
-      }
-    }
-
-    var top = (position.top - altContainer.clientHeight + 5).toString() + 'px';
-    var left = Math.max(0, Math.min(window.innerWidth - altContainer.offsetWidth, (position.left + position.right - altContainer.offsetWidth) / 2)) + 'px';
-    altContainer.style.transform = 'translate(' + left + ',' + top + ')';
-    altContainer.classList.add('is-visible');
-  }
-
-  return false;
-};
-
-MathField.prototype.hideAlternateKeys_ = function () {
-  var altContainer = document.getElementById('mathlive-alternate-keys-panel');
-
-  if (altContainer) {
-    altContainer.classList.remove('is-visible');
-    altContainer.innerHTML = '';
-    delete releaseSharedElement(altContainer);
-  }
-
-  return false;
-};
-/**
- * The command invoked when an alternate key is pressed.
- * We need to hide the Alternate Keys panel, then perform the
- * command.
- */
-
-
-MathField.prototype.performAlternateKeys_ = function (command) {
-  this.hideAlternateKeys_();
-  return this.perform(command);
-};
-
-MathField.prototype.switchKeyboardLayer_ = function (layer) {
-  if (this.config.virtualKeyboardMode !== 'off') {
-    if (layer !== 'lower-command' && layer !== 'upper-command' && layer !== 'symbols-command') {
-      // If we switch to a non-command keyboard layer, first exit command mode.
-      this.complete_();
-    }
-
-    this.showVirtualKeyboard_(); // If the alternate keys panel was visible, hide it
-
-    this.hideAlternateKeys_(); // If we were in a temporarily shifted state (shift-key held down)
-    // restore our state before switching to a new layer.
-
-    this.unshiftKeyboardLayer_();
-    var layers = this.virtualKeyboard.getElementsByClassName('keyboard-layer'); // Search for the requested layer
-
-    var found = false;
-
-    for (var i = 0; i < layers.length; i++) {
-      if (layers[i].id === layer) {
-        found = true;
-        break;
-      }
-    } // We did find the layer, switch to it.
-    // If we didn't find it, do nothing and keep the current layer
-
-
-    if (found) {
-      for (var _i = 0; _i < layers.length; _i++) {
-        if (layers[_i].id === layer) {
-          layers[_i].classList.add('is-visible');
-        } else {
-          layers[_i].classList.remove('is-visible');
-        }
-      }
-    }
-
-    this.focus();
-  }
-
-  return true;
-};
-/**
- * Temporarily change the labels and the command of the keys
- * (for example when a modifier key is held down.)
- */
-
-
-MathField.prototype.shiftKeyboardLayer_ = function () {
-  var keycaps = this.virtualKeyboard.querySelectorAll('div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action');
-
-  if (keycaps) {
-    for (var i = 0; i < keycaps.length; i++) {
-      var keycap = keycaps[i];
-      var shiftedContent = keycap.getAttribute('data-shifted');
-
-      if (shiftedContent || /^[a-z]$/.test(keycap.innerHTML)) {
-        keycap.setAttribute('data-unshifted-content', keycap.innerHTML);
-
-        if (!shiftedContent) {
-          shiftedContent = keycap.innerHTML.toUpperCase();
-        }
-
-        keycap.innerHTML = shiftedContent;
-        var command = keycap.getAttribute('data-' + this.config.namespace + 'command');
-
-        if (command) {
-          keycap.setAttribute('data-unshifted-command', command);
-          var shiftedCommand = keycap.getAttribute('data-shifted-command');
-
-          if (shiftedCommand) {
-            keycap.setAttribute('data-' + this.config.namespace + 'command', shiftedCommand);
-          } else {
-            var commandObj = JSON.parse(command);
-
-            if (Array.isArray(commandObj)) {
-              commandObj[1] = commandObj[1].toUpperCase();
-            }
-
-            keycap.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(commandObj));
-          }
-        }
-      }
-    }
-  }
-
-  return false;
-};
-/**
- * Restore the key labels and commands to the state before a modifier key
- * was pressed.
- *
- */
-
-
-MathField.prototype.unshiftKeyboardLayer_ = function () {
-  var keycaps = this.virtualKeyboard.querySelectorAll('div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action');
-
-  if (keycaps) {
-    for (var i = 0; i < keycaps.length; i++) {
-      var keycap = keycaps[i];
-      var content = keycap.getAttribute('data-unshifted-content');
-
-      if (content) {
-        keycap.innerHTML = content;
-      }
-
-      var command = keycap.getAttribute('data-unshifted-command');
-
-      if (command) {
-        keycap.setAttribute('data-' + this.config.namespace + 'command', command);
-      }
-    }
-  }
-
-  return false;
-};
-
-MathField.prototype.insertAndUnshiftKeyboardLayer_ = function (c) {
-  this.insert_(c);
-  this.unshiftKeyboardLayer_();
-  return true;
-};
-/* Toggle the virtual keyboard, but switch to the alternate theme if available */
-
-
-MathField.prototype.toggleVirtualKeyboardAlt_ = function () {
-  var hadAltTheme = false;
-
-  if (this.virtualKeyboard) {
-    hadAltTheme = this.virtualKeyboard.classList.contains('material');
-    this.virtualKeyboard.remove();
-    delete this.virtualKeyboard;
-    this.virtualKeyboard = null;
-  }
-
-  this.showVirtualKeyboard_(hadAltTheme ? '' : 'material');
-  return false;
-};
-/* Toggle the virtual keyboard, but switch another keyboard layout */
-
-
-MathField.prototype.toggleVirtualKeyboardShift_ = function () {
-  this.config.virtualKeyboardLayout = {
-    'qwerty': 'azerty',
-    'azerty': 'qwertz',
-    'qwertz': 'dvorak',
-    'dvorak': 'colemak',
-    'colemak': 'qwerty'
-  }[this.config.virtualKeyboardLayout];
-  var layer = this.virtualKeyboard ? this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible') : null;
-  layer = layer ? layer.id : '';
-
-  if (this.virtualKeyboard) {
-    this.virtualKeyboard.remove();
-    delete this.virtualKeyboard;
-    this.virtualKeyboard = null;
-  }
-
-  this.showVirtualKeyboard_();
-  if (layer) this.switchKeyboardLayer_(layer);
-  return false;
-};
-
-MathField.prototype.showVirtualKeyboard_ = function (theme) {
-  this.virtualKeyboardVisible = false;
-  this.toggleVirtualKeyboard_(theme);
-  return false;
-};
-
-MathField.prototype.hideVirtualKeyboard_ = function () {
-  this.virtualKeyboardVisible = true;
-  this.toggleVirtualKeyboard_();
-  return false;
-};
-
-MathField.prototype.toggleVirtualKeyboard_ = function (theme) {
-  this.virtualKeyboardVisible = !this.virtualKeyboardVisible;
-
-  if (this.virtualKeyboardVisible) {
-    if (this.virtualKeyboard) {
-      this.virtualKeyboard.classList.add('is-visible');
-    } else {
-      // Construct the virtual keyboard
-      this.virtualKeyboard = _editorVirtualKeyboard.default.make(this, theme); // Let's make sure that tapping on the keyboard focuses the field
-
-      on(this.virtualKeyboard, 'touchstart:passive mousedown', function () {
-        that.focus();
-      });
-      document.body.appendChild(this.virtualKeyboard);
-    } // For the transition effect to work, the property has to be changed
-    // after the insertion in the DOM. Use setTimeout
-
-
-    var that = this;
-    window.setTimeout(function () {
-      that.virtualKeyboard.classList.add('is-visible');
-    }, 1);
-  } else if (this.virtualKeyboard) {
-    this.virtualKeyboard.classList.remove('is-visible');
-  }
-
-  if (typeof this.config.onVirtualKeyboardToggle === 'function') {
-    this.config.onVirtualKeyboardToggle(this, this.virtualKeyboardVisible, this.virtualKeyboard);
-  }
-
-  return false;
-};
-/**
- * Validate a style specification object
- * @param {object} style 
- */
-
-
-function validateStyle(style) {
-  var result = {};
-
-  if (typeof style.mode === 'string') {
-    result.mode = style.mode.toLowerCase();
-    console.assert(result.mode === 'math' || result.mode === 'text' || result.mode === 'command');
-  }
-
-  if (typeof style.color === 'string') {
-    result.color = style.color;
-  }
-
-  if (typeof style.backgroundColor === 'string') {
-    result.backgroundColor = style.backgroundColor;
-  }
-
-  if (typeof style.fontFamily === 'string') {
-    result.fontFamily = style.fontFamily;
-  }
-
-  if (typeof style.series === 'string') {
-    result.fontSeries = style.series;
-  }
-
-  if (typeof style.fontSeries === 'string') {
-    result.fontSeries = style.fontSeries.toLowerCase();
-  }
-
-  if (result.fontSeries) {
-    result.fontSeries = {
-      "bold": 'b',
-      "medium": 'm',
-      "normal": 'mn'
-    }[result.fontSeries] || result.fontSeries;
-  }
-
-  if (typeof style.shape === 'string') {
-    result.fontShape = style.shape;
-  }
-
-  if (typeof style.fontShape === 'string') {
-    result.fontShape = style.fontShape.toLowerCase();
-  }
-
-  if (result.fontShape) {
-    result.fontShape = {
-      "italic": 'it',
-      "up": 'n',
-      "upright": 'n',
-      "normal": 'n'
-    }[result.fontShape] || result.fontShape;
-  }
-
-  if (typeof style.size === 'string') {
-    result.fontSize = style.size;
-  } else if (typeof style.size === 'number') {
-    result.fontSize = 'size' + Math.min(0, Math.max(10, style.size));
-  }
-
-  if (typeof style.fontSize === 'string') {
-    result.fontSize = style.fontSize.toLowerCase();
-  }
-
-  if (result.fontSize) {
-    result.fontSize = {
-      'tiny': 'size1',
-      'scriptsize': 'size2',
-      'footnotesize': 'size3',
-      'small': 'size4',
-      'normal': 'size5',
-      'normalsize': 'size5',
-      'large': 'size6',
-      'Large': 'size7',
-      'LARGE': 'size8',
-      'huge': 'size9',
-      'Huge': 'size10'
-    }[result.fontSize] || result.fontSize;
-  }
-
-  return result;
-}
-/**
- * Apply a style (color, bold, italic, etc...).
- * 
- * If there is a selection, the style is applied to the selection
- * 
- * If the selection already has this style, remove it. If the selection
- * has the style partially applied (i.e. only some sections), remove it from 
- * those sections, and apply it to the entire selection.
- * 
- * If there is no selection, the style will apply to the next character typed.
- * 
- * @param {object} style  an object with the following properties. All the 
- * properties are optional, but they can be combined.
- * 
- * @param {string} [style.mode=''] - Either `'math'`, `'text'` or '`command`'
- * @param {string} [style.color=''] - The text/fill color, as a CSS RGB value or
- * a string for some 'well-known' colors, e.g. 'red', '#f00', etc...
- * 
- * @param {string} [style.backgroundColor=''] - The background color.
- * 
- * @param {string} [style.fontFamily=''] - The font family used to render text.
- * This value can the name of a locally available font, or a CSS font stack, e.g.
- * "Avenir", "Georgia, serif", etc...
- * This can also be one of the following TeX-specific values:
- * - 'cmr': Computer Modern Roman, serif
- * - 'cmss': Computer Modern Sans-serif, latin characters only
- * - 'cmtt': Typewriter, slab, latin characters only
- * - 'cal': Calligraphic style, uppercase latin letters and digits only
- * - 'frak': Fraktur, gothic, uppercase, lowercase and digits
- * - 'bb': Blackboard bold, uppercase only
- * - 'scr': Script style, uppercase only
- * 
- * @param {string} [style.series=''] - The font 'series', i.e. weight and 
- * stretch. The following values can be combined, for example: "ebc": extra-bold,
- * condensed. Aside from 'b', these attributes may not have visible effect if the 
- * font family does not support this attribute:
- * - 'ul' ultra-light weight
- * - 'el': extra-light
- * - 'l': light
- * - 'sl': semi-light
- * - 'm': medium (default)
- * - 'sb': semi-bold
- * - 'b': bold
- * - 'eb': extra-bold
- * - 'ub': ultra-bold
- * - 'uc': ultra-condensed
- * - 'ec': extra-condensed
- * - 'c': condensed
- * - 'sc': semi-condensed
- * - 'n': normal (default)
- * - 'sx': semi-expanded
- * - 'x': expanded
- * - 'ex': extra-expanded
- * - 'ux': ultra-expanded
- * 
- * @param {string} [style.shape=''] - The font 'shape', i.e. italic.
- * - 'auto': italic or upright, depending on mode and letter (single letters are
- * italic in math mode)
- * - 'up': upright
- * - 'it': italic
- * - 'sl': slanted or oblique (often the same as italic)
- * - 'sc': small caps
- * - 'ol': outline
- *  
- * @param {string} [style.size=''] - The font size:  'size1'...'size10'
- * 'size5' is the default size
- * */
-
-
-MathField.prototype.$applyStyle = MathField.prototype.applyStyle_ = function (style) {
-  this._resetKeystrokeBuffer();
-
-  style = validateStyle(style);
-
-  if (style.mode) {
-    // There's a mode ('text', 'math', 'command') change
-    if (this.mathlist.isCollapsed()) {
-      // Nothing selected
-      this.switchMode_(style.mode);
-    } else {
-      // Convert the selection from one mode to another
-      var previousMode = this.mode;
-      var targetMode = (this.mathlist.anchorMode() || this.config.default) === 'math' ? 'text' : 'math';
-      var convertedSelection = this.$selectedText('ASCIIMath');
-
-      if (targetMode === 'math' && /^"[^"]+"$/.test(convertedSelection)) {
-        convertedSelection = convertedSelection.slice(1, -1);
-      }
-
-      this.insert(convertedSelection, {
-        mode: targetMode,
-        selectionMode: 'item',
-        format: targetMode === 'text' ? 'text' : 'ASCIIMath'
-      });
-      this.mode = targetMode;
-
-      if (this.groupIsSelected()) {
-        // The entire group was selected. Adjust parent mode if 
-        // appropriate
-        var parent = this.mathlist.parent();
-
-        if (parent && (parent.type === 'group' || parent.type === 'root')) {
-          parent.mode = targetMode;
-        }
-      } // Notify of mode change
-
-
-      if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') {
-        this.config.onModeChange(this, this.mode);
-      }
-    }
-
-    delete style.mode;
-  }
-
-  if (this.mathlist.isCollapsed()) {
-    // No selection, let's update the 'current' style
-    if (this.style.fontSeries && style.fontSeries === this.style.fontSeries) {
-      style.fontSeries = 'auto';
-    }
-
-    if (style.fontShape && style.fontShape === this.style.fontShape) {
-      style.fontShape = 'auto';
-    }
-
-    if (style.color && style.color === this.style.color) {
-      style.color = 'none';
-    }
-
-    if (style.backgroundColor && style.backgroundColor === this.style.backgroundColor) {
-      style.backgroundColor = 'none';
-    }
-
-    if (style.fontSize && style.fontSize === this.style.fontSize) {
-      style.fontSize = 'auto';
-    }
-
-    this.style = _objectSpread({}, this.style, style); // This style will be used the next time an atom is inserted
-  } else {
-    // Change the style of the selection
-    this.mathlist._applyStyle(style);
-
-    this.undoManager.snapshot(this.config);
-  }
-
-  return true;
-};
-
-MathField.prototype.hasFocus = MathField.prototype.$hasFocus = function () {
-  return document.hasFocus() && document.activeElement === this.textarea;
-};
-
-MathField.prototype.focus = MathField.prototype.$focus = function () {
-  if (!this.hasFocus()) {
-    // The textarea may be a span (on mobile, for example), so check that
-    // it has a focus() before calling it.
-    if (this.textarea.focus) this.textarea.focus();
-
-    this._announce('line');
-  }
-};
-
-MathField.prototype.blur = MathField.prototype.$blur = function () {
-  if (this.hasFocus()) {
-    if (this.textarea.blur) {
-      this.textarea.blur();
-    }
-  }
-};
-
-MathField.prototype.select = MathField.prototype.$select = function () {
-  this.mathlist.selectAll_();
-};
-
-MathField.prototype.clearSelection = MathField.prototype.$clearSelection = function () {
-  this.mathlist.delete_();
-};
-/**
- * @param {string} keys - A string representation of a key combination. 
- * 
- * For example `'Alt-KeyU'`.
- * 
- * See [W3C UIEvents](https://www.w3.org/TR/uievents/#code-virtual-keyboards)
- * @param {Event} evt
- * @return {boolean} 
- * @method MathField#$keystroke
- */
-
-
-MathField.prototype.keystroke = MathField.prototype.$keystroke = function (keys, evt) {
-  // This is the public API, while onKeystroke is the
-  // internal handler
-  return this._onKeystroke(keys, evt);
-};
-/**
- * Simulate a user typing the keys indicated by text.
- * @param {string} text - A sequence of one or more characters.
- * @method MathField#$typedText
- */
-
-
-MathField.prototype.typedText = MathField.prototype.$typedText = function (text) {
-  // This is the public API, while onTypedText is the
-  // internal handler
-  this._onTypedText(text);
-};
-/**
- *
- * @param {string} text
- * @param {Object.<string, any>} [options={}]
- * @param {boolean} options.focus - If true, the mathfield will be focused
- * @param {boolean} options.feedback - If true, provide audio and haptic feedback
- * @param {boolean} options.simulateKeystroke - If true, generate some synthetic
- * keystrokes (useful to trigger inline shortcuts, for example)
- */
-
-
-MathField.prototype.typedText_ = function (text, options) {
-  return this._onTypedText(text, options);
-};
-/**
- * 
- * Update the configuration options for this mathfield.
- * 
- * @param {Object<string, any>} [config={}] See {@tutorial CONFIG} for details.
- * 
- * @method MathField#$setConfig
- */
-
-
-MathField.prototype.setConfig = MathField.prototype.$setConfig = function (conf) {
-  if (!this.config) {
-    this.config = {
-      smartFence: true,
-      smartSuperscript: true,
-      scriptDepth: [Infinity, Infinity],
-      removeExtraneousParentheses: true,
-      overrideDefaultInlineShortcuts: false,
-      virtualKeyboard: '',
-      virtualKeyboardLayout: 'qwerty',
-      namespace: ''
-    };
-  }
-
-  this.config = _objectSpread({}, this.config, conf);
-
-  if (!Array.isArray(this.config.scriptDepth)) {
-    var depth = parseInt(this.config.scriptDepth);
-    this.config.scriptDepth = [depth, depth];
-  }
-
-  if (typeof this.config.removeExtraneousParentheses === 'undefined') {
-    this.config.removeExtraneousParentheses = true;
-  }
-
-  this.config.onAnnounce = conf.onAnnounce || _onAnnounce;
-  this.config.macros = Object.assign({}, _definitions.default.MACROS, this.config.macros); // Validate the namespace (used for `data-` attributes)
-
-  if (!/^[a-z]*[-]?$/.test(this.config.namespace)) {
-    throw Error('options.namespace must be a string of lowercase characters only');
-  }
-
-  if (!/-$/.test(this.config.namespace)) {
-    this.config.namespace += '-';
-  } // Localization strings override (or localizations for new locales)
-
-
-  _l10n.l10n.locale = this.config.locale || _l10n.l10n.locale;
-
-  _l10n.l10n.merge(this.config.strings);
-
-  this.config.virtualKeyboardLayout = conf.virtualKeyboardLayout || {
-    'fr': 'azerty',
-    // France
-    'be': 'azerty',
-    // Belgium
-    'al': 'qwertz',
-    // Albania
-    'ba': 'qwertz',
-    // Bosnia
-    'cz': 'qwertz',
-    // Czech
-    'de': 'qwertz',
-    // Germany
-    'hu': 'qwertz',
-    // Hungary
-    'sk': 'qwertz',
-    // Slovakia
-    'ch': 'qwertz' // Switzerland
-
-  }[_l10n.l10n.locale.substring(0, 2)] || 'qwerty'; // Possible keypress sound feedback
-
-  this.keypressSound = undefined;
-  this.spacebarKeypressSound = undefined;
-  this.returnKeypressSound = undefined;
-  this.deleteKeypressSound = undefined;
-
-  if (this.config.keypressSound) {
-    if (typeof this.config.keypressSound === 'string') {
-      this.keypressSound = new Audio();
-      this.keypressSound.preload = 'none';
-      this.keypressSound.src = this.config.keypressSound;
-      this.keypressSound.volume = AUDIO_FEEDBACK_VOLUME;
-      this.spacebarKeypressSound = this.keypressSound;
-      this.returnKeypressSound = this.keypressSound;
-      this.deleteKeypressSound = this.keypressSound;
-    } else {
-      console.assert(this.config.keypressSound.default);
-      this.keypressSound = new Audio();
-      this.keypressSound.preload = 'none';
-      this.keypressSound.src = this.config.keypressSound.default;
-      this.keypressSound.volume = AUDIO_FEEDBACK_VOLUME;
-      this.spacebarKeypressSound = this.keypressSound;
-      this.returnKeypressSound = this.keypressSound;
-      this.deleteKeypressSound = this.keypressSound;
-
-      if (this.config.keypressSound.spacebar) {
-        this.spacebarKeypressSound = new Audio();
-        this.spacebarKeypressSound.preload = 'none';
-        this.spacebarKeypressSound.src = this.config.keypressSound.spacebar;
-        this.spacebarKeypressSound.volume = AUDIO_FEEDBACK_VOLUME;
-      }
-
-      if (this.config.keypressSound.return) {
-        this.returnKeypressSound = new Audio();
-        this.returnKeypressSound.preload = 'none';
-        this.returnKeypressSound.src = this.config.keypressSound.return;
-        this.returnKeypressSound.volume = AUDIO_FEEDBACK_VOLUME;
-      }
-
-      if (this.config.keypressSound.delete) {
-        this.deleteKeypressSound = new Audio();
-        this.deleteKeypressSound.preload = 'none';
-        this.deleteKeypressSound.src = this.config.keypressSound.delete;
-        this.deleteKeypressSound.volume = AUDIO_FEEDBACK_VOLUME;
-      }
-    }
-  }
-
-  if (this.config.plonkSound) {
-    this.plonkSound = new Audio();
-    this.plonkSound.preload = 'none';
-    this.plonkSound.src = this.config.plonkSound;
-    this.plonkSound.volume = AUDIO_FEEDBACK_VOLUME;
-  }
-};
-/**
- * 
- * Speak some part of the expression, either with or without synchronized highlighting.
- * 
- * @param {string} amount (all, selection, left, right, group, parent)
- * @param {object} speakOptions 
- * @param {boolean} speakOptions.withHighlighting - If true, synchronized highlighting of speech will happen (if possible)
- * 
- * @method MathField#speak_
- */
-
-
-MathField.prototype.speak_ = function (amount, speakOptions) {
-  speakOptions = speakOptions || {
-    withHighlighting: false
-  };
-
-  function getAtoms(mathField, amount) {
-    var result = null;
-
-    switch (amount) {
-      case 'all':
-        result = mathField.mathlist.root;
-        break;
-
-      case 'selection':
-        if (!mathField.mathlist.isCollapsed()) {
-          result = mathField.mathlist.getSelectedAtoms();
-        }
-
-        break;
-
-      case 'left':
-        {
-          var siblings = mathField.mathlist.siblings();
-          var last = mathField.mathlist.startOffset();
-
-          if (last >= 1) {
-            result = [];
-
-            for (var i = 1; i <= last; i++) {
-              result.push(siblings[i]);
-            }
-          }
-
-          break;
-        }
-
-      case 'right':
-        {
-          var _siblings = mathField.mathlist.siblings();
-
-          var first = mathField.mathlist.endOffset() + 1;
-
-          if (first <= _siblings.length - 1) {
-            result = [];
-
-            for (var _i2 = first; _i2 <= _siblings.length - 1; _i2++) {
-              result.push(_siblings[_i2]);
-            }
-          }
-
-          break;
-        }
-
-      case 'start':
-      case 'end':
-        // not yet implemented
-        break;
-
-      case 'group':
-        result = mathField.mathlist.siblings();
-        break;
-
-      case 'parent':
-        {
-          var parent = mathField.mathlist.parent();
-
-          if (parent && parent.type !== 'root') {
-            result = mathField.mathlist.parent();
-          }
-
-          break;
-        }
-
-      default:
-        console.log('unknown atom type "' + mathField.type + '"');
-        break;
-    }
-
-    return result;
-  }
-
-  function getFailedSpeech(amount) {
-    var result = '';
-
-    switch (amount) {
-      case 'all':
-        console.log("Internal failure: speak all failed");
-        break;
-
-      case 'selection':
-        result = 'no selection';
-        break;
-
-      case 'left':
-        result = 'at start';
-        break;
-
-      case 'right':
-        result = 'at end';
-        break;
-
-      case 'group':
-        console.log("Internal failure: speak group failed");
-        break;
-
-      case 'parent':
-        result = 'no parent';
-        break;
-
-      default:
-        console.log('unknown speak_ param value: "' + amount + '"');
-        break;
-    }
-
-    return result;
-  }
-
-  var atoms = getAtoms(this, amount);
-
-  if (atoms === null) {
-    this.config.handleSpeak(getFailedSpeech(amount));
-    return false;
-  }
-
-  var options = this.config;
-
-  if (speakOptions.withHighlighting | options.speechEngine === 'amazon') {
-    options.textToSpeechMarkup = window.sre && options.textToSpeechRules === 'sre' ? 'ssml_step' : 'ssml';
-  }
-
-  var text = _mathAtom.default.toSpeakableText(atoms, options);
-
-  if (speakOptions.withHighlighting) {
-    window.mathlive.readAloudMathField = this;
-
-    this._render({
-      forHighlighting: true
-    });
-
-    if (this.config.handleReadAloud) {
-      this.config.handleReadAloud(this.field, text, this.config);
-    }
-  } else {
-    if (this.config.handleSpeak) {
-      this.config.handleSpeak(text, options);
-    }
-  }
-
-  return false;
-};
-
-var _default = {
-  MathField: MathField
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-mathpath.js b/dist/editor/editor-mathpath.js
deleted file mode 100644
index ec9edf0bd..000000000
--- a/dist/editor/editor-mathpath.js
+++ /dev/null
@@ -1,180 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-/**
- * @module editor/mathpath
- * @private
- */
-
-/**
- * 
- * @memberof module:editor/mathpath
- * @param {object} path 
- * @param {number} extent
- * @return {string}
- * @private
- */
-function pathToString(path, extent) {
-  var result = '';
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
-
-  try {
-    for (var _iterator = path[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var segment = _step.value;
-      result += segment.relation + ':' + segment.offset + '/';
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator.return != null) {
-        _iterator.return();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
-    }
-  }
-
-  if (extent) {
-    result += '#' + extent;
-  }
-
-  return result;
-}
-/**
- * 
- * @memberof module:editor/mathpath
- * @param {string} string 
- * @return {object}
- * @private
- */
-
-
-function pathFromString(string) {
-  // Reset the path
-  var result = {
-    path: [],
-    extent: 0
-  }; // Parse the selection extent, if present
-
-  var components = string.split('#');
-
-  if (components.length > 1) {
-    result.extent = parseInt(components[1]);
-  } // Parse the segments
-
-
-  var segments = components[0].split('/');
-  var _iteratorNormalCompletion2 = true;
-  var _didIteratorError2 = false;
-  var _iteratorError2 = undefined;
-
-  try {
-    for (var _iterator2 = segments[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-      var segment = _step2.value;
-      var m2 = segment.match(/([^:]*):(.*)/);
-
-      if (m2) {
-        result.path.push({
-          relation: m2[1],
-          offset: parseInt(m2[2])
-        });
-      }
-    }
-  } catch (err) {
-    _didIteratorError2 = true;
-    _iteratorError2 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-        _iterator2.return();
-      }
-    } finally {
-      if (_didIteratorError2) {
-        throw _iteratorError2;
-      }
-    }
-  }
-
-  return result;
-}
-/**
- * Given two paths, return a path representing their common ancestor.
- * 
- * @param {Array.<string>} p 
- * @param {Array.<string>} q 
- * @return {Array.<string>}
- * @memberof module:editor/mathpath
- * @private
- */
-
-
-function pathCommonAncestor(p, q) {
-  var result = [];
-  var maxIndex = Math.min(p.length - 1, q.length - 1);
-  var i = 0;
-
-  while (i <= maxIndex && p[i].relation === q[i].relation && p[i].offset === q[i].offset) {
-    result.push(p[i]);
-    i += 1;
-  }
-
-  return result;
-}
-/**
- * 
- * @param {Array.<string>} p 
- * @param {Array.<string>} q 
- * @return {number} 0 if the paths are identical
- *  - 1 if they are siblings
- *  - >1 if they are not siblings
- * @memberof module:editor/mathpath
- * @private
- */
-
-
-function pathDistance(p, q) {
-  var result = 0;
-  var i = -1;
-  var done = false;
-
-  while (!done) {
-    i += 1;
-    done = i >= p.length || i >= q.length;
-    done = done || !(p[i].relation === q[i].relation && p[i].offset === q[i].offset);
-  }
-
-  if (i === p.length && i === q.length) {
-    // They're identical
-    result = 0;
-  } else if (i + 1 === p.length && i + 1 === q.length && p[i].relation === q[i].relation) {
-    // They're siblings
-    result = 1;
-  } else {
-    result = 2;
-  }
-
-  return result;
-}
-
-function clone(path) {
-  return pathFromString(pathToString(path)).path;
-}
-
-var _default = {
-  pathFromString: pathFromString,
-  pathToString: pathToString,
-  pathDistance: pathDistance,
-  pathCommonAncestor: pathCommonAncestor,
-  clone: clone
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-popover.js b/dist/editor/editor-popover.js
deleted file mode 100644
index 9d96ad798..000000000
--- a/dist/editor/editor-popover.js
+++ /dev/null
@@ -1,426 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
-
-var _lexer = _interopRequireDefault(require("../core/lexer.js"));
-
-var _parser = _interopRequireDefault(require("../core/parser.js"));
-
-var _span = _interopRequireDefault(require("../core/span.js"));
-
-var _editorShortcuts = _interopRequireDefault(require("./editor-shortcuts.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-var SAMPLES = {
-  '\\mathrm': '\\mathrm{x=+3.14, x\\in A}',
-  '\\mathbf': '\\mathbf{x=+3.14, x\\in A}',
-  '\\bf': '\\bf{x=+3.14, x\\in A}',
-  '\\bm': '\\bm{x=+3.14, x\\in A}',
-  '\\bold': '\\bold{x=+3.14, x\\in A}',
-  '\\mathit': '\\mathbb{x=+3.14}',
-  '\\mathbb': '\\mathbb{ABCD}',
-  '\\Bbb': '\\mathbb{ABCD}',
-  '\\frak': '\\frak{ABCD}',
-  '\\mathfrak': '\\mathfrak{ABCD}',
-  '\\mathscr': '\\mathscr{ABCD}',
-  '\\mathsf': '\\mathsf{ABab01}',
-  '\\mathtt': '\\mathtt{x=+3.14, x\\in A}',
-  '\\mathcal': '\\mathcal{ABCD}',
-  '\\boldsymbol': '\\boldsymbol{ABab01+=}',
-  '\\text': '\\text{ABC abc}',
-  '\\textrm': '\\textrm{ABC abc}',
-  '\\textnormal': '\\textnormal{ABC abc}',
-  '\\textit': '\\textit{ABC abc}',
-  '\\textbf': '\\textbf{ABC abc}',
-  '\\texttt': '\\texttt{ABC abc}',
-  '\\textsf': '\\textsf{ABC abc}',
-  '\\textcolor': "{\\textcolor{m0}A}{\\textcolor{m1}B}{\\textcolor{m2}C }{\\textcolor{m3}a}{\\textcolor{m4}b}{\\textcolor{m5}c}{\\textcolor{m6}8}",
-  '\\color': "{\\color{m0}A}{\\color{m1}B}{\\color{m2}C}{\\color{m3}a}{\\color{m4}b}{\\color{m5}c}{\\color{m6}8}",
-  "\\underline": "\\underline{\\unicode{\"2B1A}}",
-  '\\overline': "\\overline{\\unicode{\"2B1A}}",
-  '\\vec': "\\vec{\\unicode{\"25CC}}",
-  '\\check': "\\check{\\unicode{\"25CC}}",
-  '\\acute': "\\acute{\\unicode{\"25CC}}",
-  '\\breve': "\\breve{\\unicode{\"25CC}}",
-  '\\tilde': "\\tilde{\\unicode{\"25CC}}",
-  '\\hat': "\\hat{\\unicode{\"25CC}}",
-  '\\ddot': "\\ddot{\\unicode{\"25CC}}",
-  '\\dot': "\\dot{\\unicode{\"25CC}}",
-  '\\bar': "\\bar{\\unicode{\"25CC}}",
-  '\\!': "\\unicode{\"203A}\\!\\unicode{\"2039}",
-  '\\,': "\\unicode{\"203A}\\,\\unicode{\"2039}",
-  '\\:': "\\unicode{\"203A}\\:\\unicode{\"2039}",
-  '\\;': "\\unicode{\"203A}\\;\\unicode{\"2039}",
-  '\\quad': "\\unicode{\"203A}\\quad\\unicode{\"2039}",
-  '\\qquad': "\\unicode{\"203A}\\qquad\\unicode{\"2039}",
-  '\\enskip': "\\unicode{\"203A}\\enskip\\unicode{\"2039}",
-  '\\space': "\\unicode{\"203A}\\space\\unicode{\"2039}",
-  '\\frac': "\\frac{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\dfrac': "\\dfrac{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\cfrac': "\\cfrac{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\tfrac': "\\tfrac{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\dbinom': "\\dbinom{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\tbinom': "\\tbinom{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\binom': "\\binom{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\pdiff': "\\pdiff{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\in': 'n\\in\\N',
-  '\\notin': 'n\\notin\\N',
-  '\\not': 'B \\not A',
-  '\\ni': 'N\\in n',
-  '\\owns': 'N\\owns n',
-  '\\subset': 'A\\subset B',
-  '\\supset': 'B\\supset A',
-  '\\subseteq': 'A\\subseteq B',
-  '\\supseteq': 'B\\supseteq A',
-  '\\nsubseteq': 'A\\nsubseteq B',
-  '\\nsupseteq': 'B\\nsupseteq A',
-  '\\subsetneq': 'A\\subsetneq B',
-  '\\supsetneq': 'B\\supsetneq A',
-  '\\varsubsetneq': 'A\\varsubsetneq B',
-  '\\varsupsetneq': 'B\\varsupsetneq A',
-  '\\nsubseteqq': 'A\\varsupsetneq B',
-  '\\subsetneqq': 'A\\subsetneqq B',
-  '\\varsubsetneqq': 'A\\varsubsetneqq B',
-  '\\nsubset': 'A\\nsubset B',
-  '\\nsupset': 'B\\nsupset A',
-  '\\complement': 'A^\\complement',
-  '\\bigcup': "\\bigcup_{\\unicode{\"2B1A}}",
-  '\\bigcap': "\\bigcap_{\\unicode{\"2B1A}}",
-  '\\sqrt': "\\sqrt{\\unicode{\"2B1A}}",
-  '\\prod': "\\prod_{\\unicode{\"2B1A}}^{\\unicode{\"2B1A}}",
-  '\\sum': "\\sum_{\\unicode{\"2B1A}}^{\\unicode{\"2B1A}}",
-  '\\int': "\\int_{\\unicode{\"2B1A}}^{\\unicode{\"2B1A}}",
-  '\\stackrel': "\\stackrel{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\stackbin': "\\stackbin{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  "\\underset": "\\underset{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\overset': "\\overset{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
-  '\\prime': "\\unicode{\"2B1A}^{\\prime}",
-  '\\boxed': "\\boxed{\\unicode{\"2B1A}}",
-  '\\colorbox': "\\colorbox{#fbc0bd}{\\unicode{\"2B1A}}",
-  '\\bbox': "\\bbox[#ffd400, solid 2px #ffd400]{\\unicode{\"2B1A}}",
-  '\\enclose': '\\enclose{updiagonalstrike,roundedbox}[1px solid red, mathbackground="#fbc0bd"]{23+45}',
-  '\\fcolorbox': "\\fcolorbox{#cd0030}{#ffd400}{\\unicode{\"2B1A}}",
-  '\\ ': '\\char"2423',
-  // OPEN BOX
-  '\\top': '{\\color{red}P}\\top',
-  '\\bot': '{\\color{#0F0}P}\\bot',
-  '\\mid': 'P(p\\mid q)',
-  '\\rlap': '\\rlap{x}o',
-  '\\llap': 'o\\llap{/}'
-}; // A textual description of a LaTeX command.
-// The value can be either a single string, or an array of string
-// in order to provide alternatives or additional context.
-// In that case, the first string in the array should be appropriate
-// to be spoken for accessibility.
-
-var NOTES = {
-  '\\text': 'roman text',
-  '\\textrm': 'roman text',
-  '\\textnormal': 'roman text',
-  '\\textit': 'italic text',
-  '\\textbf': 'bold text',
-  '\\texttt': 'monospaced text',
-  '\\textsf': 'sans-serif text',
-  '\\mathrm': ['roman', '(upright)'],
-  '\\mathbf': 'bold',
-  '\\bf': 'bold',
-  '\\bold': 'bold',
-  '\\mathit': 'italic',
-  '\\mathbb': 'blackboard',
-  '\\Bbb': 'blackboard',
-  '\\mathscr': 'script',
-  '\\mathtt': ['typewriter', '(monospaced)'],
-  '\\mathsf': 'sans-serif',
-  '\\mathcal': 'caligraphic',
-  '\\frak': ['fraktur', '(gothic)'],
-  '\\mathfrak': ['fraktur', '(gothic)'],
-  '\\textcolor': 'text color',
-  '\\color': 'color',
-  '\\forall': 'for all',
-  '\\exists': 'there exists',
-  '\\nexists': 'there does not exist',
-  '\\frac': 'fraction',
-  '\\dfrac': 'display fraction',
-  '\\cfrac': 'continuous fraction',
-  '\\tfrac': 'text fraction',
-  '\\binom': 'binomial coefficient',
-  '\\dbinom': 'display binomial coefficient',
-  '\\tbinom': 'text binomial coefficient',
-  '\\pdiff': 'partial differential',
-  '\\vec': 'vector',
-  '\\check': 'caron',
-  '\\acute': 'acute',
-  '\\breve': 'breve',
-  '\\tilde': 'tilde',
-  '\\dot': 'dot',
-  '\\hat': ['hat', 'circumflex'],
-  '\\ddot': 'double dot',
-  '\\bar': 'bar',
-  '\\prime': 'prime',
-  '\\doubleprime': 'double prime',
-  '\\varnothing': 'empty set',
-  '\\emptyset': 'empty set',
-  '\\subseteq': 'subset of or <br>equal to',
-  '\\supseteq': 'superset of or <br>equal to',
-  '\\supset': 'superset of',
-  '\\subset': 'subset of',
-  '\\partial': 'partial derivative',
-  '\\bigcup': 'union',
-  '\\bigcap': 'intersection',
-  '\\approx': 'approximately equal to',
-  '\\notin': 'not an element of',
-  '\\in': ['element of', 'included in'],
-  '\\infty': 'infinity',
-  '\\land': 'logical and',
-  '\\sqrt': 'square root',
-  '\\prod': 'product',
-  '\\sum': 'summation',
-  '\\amalg': ['amalgamation', 'coproduct', 'free product', 'disjoint union'],
-  '\\cup': 'union with',
-  '\\cap': 'intersection with',
-  '\\int': 'integral',
-  '\\iint': 'surface integral',
-  '\\oint': 'curve integral',
-  '\\iiint': 'volume integral',
-  '\\iff': 'if and only if',
-  '\\ln': 'natural logarithm',
-  '\\boldsymbol': 'bold',
-  '\\setminus': 'set subtraction',
-  '\\stackrel': 'relation with symbol above',
-  '\\stackbin': 'operator with symbol above',
-  "\\underset": 'symbol with annotation below',
-  '\\overset': 'symbol with annotation above',
-  '\\hslash': ['h-bar', 'Planck constant'],
-  '\\gtrsim': 'greater than or <br>similar to',
-  '\\propto': 'proportional to',
-  '\\equiv': 'equivalent to',
-  '\\!': ['negative thin space', '(-3 mu)'],
-  '\\ ': ['space', '(6 mu)'],
-  '\\,': ['thin space', '(3 mu)'],
-  '\\:': ['medium space', '(4 mu)'],
-  '\\;': ['thick space', '(5 mu)'],
-  '\\quad': ['1 em space', '(18 mu)'],
-  '\\qquad': ['2 em space', '(36 mu)'],
-  '\\enskip': ['&#189; em space', '(9 mu)'],
-  '\\mp': 'minus or plus',
-  '\\pm': 'plus or minus',
-  '\\Im': 'Imaginary part of',
-  '\\Re': 'Real part of',
-  '\\gothicCapitalR': 'Real part of',
-  '\\gothicCapitalI': 'Imaginary part part of',
-  '\\differentialD': 'differential d',
-  '\\aleph': ['aleph', 'infinite cardinal', '<a target="_blank" href="https://en.wikipedia.org/wiki/Cardinal_number">Wikipedia <big>&#x203A;</big></a>'],
-  '\\beth': ['beth', 'beth number', '<a target="_blank" href="https://en.wikipedia.org/wiki/Beth_number">Wikipedia <big>&#x203A;</big></a>'],
-  '\\gimel': ['gimel', 'gimel function', '<a target="_blank" href="https://en.wikipedia.org/wiki/Gimel_function">Wikipedia <big>&#x203A;</big></a>'],
-  '\\O': 'empty set',
-  '\\N': 'set of <br>natural numbers',
-  '\\Z': 'set of <br>integers',
-  '\\Q': 'set of <br>rational numbers',
-  '\\C': 'set of <br>complex numbers',
-  '\\R': 'set of <br>real numbers',
-  '\\P': 'set of <br>prime numbers',
-  '\\lesseqqgtr': 'less than, equal to or<br> greater than',
-  '\\gnapprox': 'greater than and <br>not approximately',
-  '\\lnapprox': 'lesser than and <br>not approximately',
-  '\\j': 'dotless j',
-  '\\i': 'dotless i',
-  '\\cdot': 'centered dot',
-  '\\lmoustache': 'left moustache',
-  '\\rmoustache': 'right moustache',
-  '\\nabla': ['nabla', 'del', 'differential vector operator'],
-  '\\square': ['square', 'd’Alembert operator', '<a target="_blank" href="https://en.wikipedia.org/wiki/D%27Alembert_operator">Wikipedia <big>&#x203A;</big></a>'],
-  '\\blacksquare': ['black square', 'end of proof', 'tombstone', 'Halmos symbol'],
-  '\\Box': 'end of proof',
-  '\\colon': ['such that', 'ratio'],
-  '\\coloneq': ['is defined by', 'is assigned'],
-  '\\Colon': ['is defined by', 'as'],
-  '\\_': ['underbar', 'underscore'],
-  '\\ll': 'much less than',
-  '\\gg': 'much greater than',
-  '\\doteq': 'approximately equal to',
-  '\\Doteq': 'approximately equal to',
-  '\\doteqdot': 'approximately equal to',
-  '\\cong': ['isomorphism of', '(for algebras, modules...)'],
-  '\\det': ['determinant of', '(of a matrix)'],
-  '\\dotplus': 'Cartesian product algebra',
-  '\\otimes': ['tensor product', '(of algebras)', 'Kronecker product', '(of matrices)'],
-  '\\oplus': ['direct sum', '(of modules)'],
-  '\\lb': 'base-2 logarithm',
-  '\\lg': 'base-10 logarithm',
-  '\\wp': ['Weierstrass P', '<a target="_blank" href="https://en.wikipedia.org/wiki/Weierstrass%27s_elliptic_functions">Wikipedia <big>&#x203A;</big></a>'],
-  '\\wr': ['wreath product', '<a target="_blank" href="https://en.wikipedia.org/wiki/Wreath_product">Wikipedia <big>&#x203A;</big></a>'],
-  '\\top': ['tautology', 'Proposition P is universally true'],
-  '\\bot': ['contradiction', 'Proposition P is contradictory'],
-  '\\mid': ['probability', 'of event A given B'],
-  '\\mho': ['Siemens', 'electrical conductance in SI unit', '<a target="_blank" href="https://en.wikipedia.org/wiki/Siemens_(unit)">Wikipedia <big>&#x203A;</big></a>'],
-  '\\Longrightarrow': 'implies',
-  '\\Longleftrightarrow': 'if, and only if,',
-  '\\prec': 'precedes',
-  '\\preceq': 'precedes or is equal to',
-  '\\succ': 'succeedes',
-  '\\succeq': 'succeedes or is equal to',
-  '\\perp': ['is perpendicular to', 'is independent of'],
-  '\\models': ['entails', 'double-turnstyle, models', 'is a semantic consequence of', '<a target="_blank" href="https://en.wikipedia.org/wiki/Double_turnstile">Wikipedia <big>&#x203A;</big></a>'],
-  '\\vdash': ['satisfies', 'turnstyle, assertion sign', 'syntactic inference', '<a target="_blank" href="https://en.wikipedia.org/wiki/Turnstile_(symbol)">Wikipedia <big>&#x203A;</big></a>'],
-  '\\implies': ['implies', 'logical consequence'],
-  '\\impliedby': ['implied by', 'logical consequence'],
-  '\\surd': ['surd', 'root of', 'checkmark'],
-  '\\ltimes': ['semi direct product', '<a target="_blank" href="https://en.wikipedia.org/wiki/Semidirect_product">Wikipedia <big>&#x203A;</big></a>'],
-  '\\rtimes': ['semi direct product', '<a target="_blank" href="https://en.wikipedia.org/wiki/Semidirect_product">Wikipedia <big>&#x203A;</big></a>'],
-  '\\leftthreetimes': ['semi direct product', '<a target="_blank" href="https://en.wikipedia.org/wiki/Semidirect_product">Wikipedia <big>&#x203A;</big></a>'],
-  '\\rightthreetimes': ['semi direct product', '<a target="_blank" href="https://en.wikipedia.org/wiki/Semidirect_product">Wikipedia <big>&#x203A;</big></a>'],
-  '\\divideontimes': ['divide on times'],
-  '\\curlywedge': 'nor',
-  '\\curlyvee': 'nand',
-  '\\simeq': 'is group isomorphic with',
-  '\\vartriangleleft': ['is a normal subgroup of', 'is an ideal ring of'],
-  '\\circ': ['circle', 'ring', 'function composition'],
-  '\\rlap': ['overlap right', '\\rlap{x}o'],
-  '\\llap': ['overlap left', 'o\\llap{/}'],
-  '\\colorbox': ['color box', '\\colorbox{#fbc0bd}{...}'],
-  '\\ast': ['asterisk', 'reflexive closure (as a superscript)'],
-  '\\bullet': 'bullet',
-  '\\lim': 'limit'
-};
-
-function getNote(symbol) {
-  var result = NOTES[symbol] || '';
-
-  if (Array.isArray(result)) {
-    result = result.join('<br>');
-  }
-
-  return result;
-}
-
-function latexToMarkup(latex, mf) {
-  var parse = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, mf.config.macros);
-
-  var spans = _mathAtom.default.decompose({
-    mathstyle: 'displaystyle',
-    macros: mf.config.macros
-  }, parse);
-
-  var base = _span.default.makeSpan(spans, 'ML__base');
-
-  var topStrut = _span.default.makeSpan('', 'ML__strut');
-
-  topStrut.setStyle('height', base.height, 'em');
-
-  var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom');
-
-  bottomStrut.setStyle('height', base.height + base.depth, 'em');
-  bottomStrut.setStyle('vertical-align', -base.depth, 'em');
-
-  var wrapper = _span.default.makeSpan([topStrut, bottomStrut, base], 'ML__mathlive');
-
-  return wrapper.toMarkup();
-}
-
-function showPopoverWithLatex(mf, latex, displayArrows) {
-  if (!latex || latex.length === 0) {
-    hidePopover(mf);
-    return;
-  }
-
-  var command = latex;
-  var command_markup = latexToMarkup(SAMPLES[command] || latex, mf);
-  var command_note = getNote(command);
-
-  var command_shortcuts = _editorShortcuts.default.forCommand(command);
-
-  var template = displayArrows ? '<div class="ML__popover__prev-shortcut" role="button" aria-label="Previous suggestion"><span><span>&#x25B2;</span></span></div>' : '';
-  template += '<span class="ML__popover__content" role="button">';
-  template += '<div class="ML__popover__command">' + command_markup + '</div>';
-
-  if (command_note) {
-    template += '<div class="ML__popover__note">' + command_note + '</div>';
-  }
-
-  if (command_shortcuts) {
-    template += '<div class="ML__popover__shortcut">' + command_shortcuts + '</div>';
-  }
-
-  template += '</span>';
-  template += displayArrows ? '<div class="ML__popover__next-shortcut" role="button" aria-label="Next suggestion"><span><span>&#x25BC;</span></span></div>' : '';
-  showPopover(mf, template);
-  var el = mf.popover.getElementsByClassName('ML__popover__content');
-
-  if (el && el.length > 0) {
-    mf._attachButtonHandlers(el[0], ['complete', {
-      acceptSuggestion: true
-    }]);
-  }
-
-  el = mf.popover.getElementsByClassName('ML__popover__prev-shortcut');
-
-  if (el && el.length > 0) {
-    mf._attachButtonHandlers(el[0], 'previousSuggestion');
-  }
-
-  el = mf.popover.getElementsByClassName('ML__popover__next-shortcut');
-
-  if (el && el.length > 0) {
-    mf._attachButtonHandlers(el[0], 'nextSuggestion');
-  }
-}
-
-function updatePopoverPosition(mf, options) {
-  // If the popover pane is visible...
-  if (mf.popover.classList.contains('is-visible')) {
-    if (options && options.deferred) {
-      // Call ourselves again later, typically after the
-      // rendering/layout of the DOM has been completed
-      window.requestAnimationFrame(function () {
-        return updatePopoverPosition(mf);
-      });
-    } else {
-      if (!mf.mathlist.anchor() || mf.mathlist.anchor().type !== 'command') {
-        hidePopover(mf);
-      } else {
-        // ... get the caret position
-        var position = mf._getCaretPosition();
-
-        if (position) {
-          // and position the popover right below the caret
-          mf.popover.style.left = position.x - mf.popover.offsetWidth / 2 + 'px';
-          mf.popover.style.top = position.y + 5 + 'px';
-        }
-      }
-    }
-  }
-}
-
-function showPopover(mf, markup) {
-  mf.popover.innerHTML = markup;
-
-  var position = mf._getCaretPosition();
-
-  if (position) {
-    mf.popover.style.left = position.x - mf.popover.offsetWidth / 2 + 'px';
-    mf.popover.style.top = position.y + 5 + 'px';
-  }
-
-  mf.popover.classList.add('is-visible');
-}
-
-function hidePopover(mf) {
-  mf.popover.classList.remove('is-visible');
-}
-
-var _default = {
-  getNote: getNote,
-  SAMPLES: SAMPLES,
-  NOTES: NOTES,
-  showPopoverWithLatex: showPopoverWithLatex,
-  showPopover: showPopover,
-  hidePopover: hidePopover,
-  updatePopoverPosition: updatePopoverPosition
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-shortcuts.js b/dist/editor/editor-shortcuts.js
deleted file mode 100644
index 3fdfffa2c..000000000
--- a/dist/editor/editor-shortcuts.js
+++ /dev/null
@@ -1,1210 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _definitions = _interopRequireDefault(require("../core/definitions.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/**
- * @module editor/shortcuts
- * @private
- */
-
-/**
- * The index of this array is a keystroke combination as returned by the key
- * field of a JavaScript keyboard event as documented here:
- * https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key/Key_Values
- * except for:
- * - `Escape`         → `Esc`
- * - `LeftArrow`...   → `Left/Right/Up/Down`
- * - `Delete`         → `Del`
- * - `Escape`         → `Esc`
- * - ' '              → `Spacebar`
- * 
- * The modifiers are specified before the main key, in the following order:
- * 1. `Ctrl`
- * 2. `Meta`: Command key on Mac OS. On Windows this is the Windows key,
- * but the system intercepts those key combinations so they are never received
- * 3. `Alt`: Option key on Mac OS
- * 4. `Shift`
- * 
- * The keys can be preceded by a context to restrict when the shortcut is 
- * applicable. For example, "math:Ctrl-KeyA" will restrict this shortcut
- * to only apply in the "math" context (parseMode). Other valid context include
- * "text" and "command".
- * 
- * The value of the entries represent the command to perform. 
- * This can be either a single selector, or an array of a selector followed
- * by its arguments.
- * Selectors uses the following naming conventions:
- * - a 'char' is a math atom (a letter, digit, symbol or compound atom)
- * - a 'word' is a sequence of math atoms of the same type
- * - a 'group' is a sequence of sibling atoms, for example a numerator or 
- * a superscript
- * - the 'MathField' is the entire expression being edited
- * - a 'placeholder' is either an actual placeholder atom or an empty child 
- * list, for example an empty numerator
- * - 'move' changes the position of the insertion point (and collapses the 
- * selection range if necessary)
- * - 'extend' keeps the anchor of the  selection, but moves the focus (extends,
- * or shrinks, the range of selected items)
- * 
- * @memberof module:editor/shortcuts
- * @type {Object<string,string>}
- */
-var KEYBOARD_SHORTCUTS = {
-  'Left': 'moveToPreviousChar',
-  'Right': 'moveToNextChar',
-  'Up': 'moveUp',
-  'Down': 'moveDown',
-  'Shift-Left': 'extendToPreviousChar',
-  'Shift-Right': 'extendToNextChar',
-  'Shift-Up': 'extendUp',
-  'Shift-Down': 'extendDown',
-  'Backspace': 'deletePreviousChar',
-  'Alt-Del': 'deletePreviousChar',
-  'Del': 'deleteNextChar',
-  'Alt-Backspace': 'deleteNextChar',
-  'Alt-Left': 'moveToPreviousWord',
-  'Alt-Right': 'moveToNextWord',
-  'Alt-Shift-Left': 'extendToPreviousWord',
-  'Alt-Shift-Right': 'extendToNextWord',
-  'Ctrl-Left': 'moveToGroupStart',
-  'Ctrl-Right': 'moveToGroupEnd',
-  'Ctrl-Shift-Left': 'extendToGroupStart',
-  'Ctrl-Shift-Right': 'extendToGroupEnd',
-  'math:Spacebar': 'moveAfterParent',
-  'math:Shift-Spacebar': 'moveBeforeParent',
-  'Home': 'moveToMathFieldStart',
-  'mac:Meta-Left': 'moveToMathFieldStart',
-  'Shift-Home': 'extendToMathFieldStart',
-  'mac:Meta-Shift-Left': 'extendToMathFieldStart',
-  'End': 'moveToMathFieldEnd',
-  'mac:Meta-Right': 'moveToMathFieldEnd',
-  'Shift-End': 'extendToMathFieldEnd',
-  'mac:Meta-Shift-Right': 'extendToMathFieldEnd',
-  'PageUp': 'moveToGroupStart',
-  'PageDown': 'moveToGroupEnd',
-  'math:Tab': 'moveToNextPlaceholder',
-  'math:F8': 'moveToNextPlaceholder',
-  // Visual Studio
-  'math:Shift-Tab': 'moveToPreviousPlaceholder',
-  'math:Shift-F8': 'moveToPreviousPlaceholder',
-  // Visual Studio
-  'text:Tab': 'moveToNextPlaceholder',
-  'text:F8': 'moveToNextPlaceholder',
-  // Visual Studio
-  'text:Shift-Tab': 'moveToPreviousPlaceholder',
-  'text:Shift-F8': 'moveToPreviousPlaceholder',
-  // Visual Studio
-  'math:Esc': ['switch-mode', 'command'],
-  'math:Backslash': ['switch-mode', 'command'],
-  'math:IntlBackslash': ['switch-mode', 'command'],
-  'math:Alt-Equal': ['apply-style', {
-    mode: 'text'
-  }],
-  'text:Alt-Equal': ['apply-style', {
-    mode: 'math'
-  }],
-  'command:Esc': ['complete', {
-    discard: true
-  }],
-  // discard the command, insert nothing
-  'command:Tab': ['complete', {
-    acceptSuggestion: true
-  }],
-  // complete the suggestion
-  'command:Return': 'complete',
-  'command:Enter': 'complete',
-  'command:Shift-Esc': ['complete', {
-    discard: true
-  }],
-  // Some keyboards can't generate 
-  // this combination, for example in 60% keyboards it is mapped to ~
-  'command:Down': 'nextSuggestion',
-  'ios:command:Tab': 'nextSuggestion',
-  'command:Up': 'previousSuggestion',
-  '!mac:Ctrl-KeyA': 'selectAll',
-  'mac:Meta-KeyA': 'selectAll',
-  // Rare keys on some extended keyboards
-  'Cut': 'cut',
-  'Copy': 'copy',
-  'Paste': 'paste',
-  'Clear': 'delete',
-  '!mac:Ctrl-KeyZ': 'undo',
-  'mac:Meta-KeyZ': 'undo',
-  'Undo': 'undo',
-  '!mac:Ctrl-KeyY': 'redo',
-  // ARIA recommendation
-  'mac:Meta-Shift-KeyY': 'redo',
-  '!mac:Ctrl-Shift-KeyZ': 'redo',
-  'mac:Meta-Shift-KeyZ': 'redo',
-  'Redo': 'redo',
-  'EraseEof': 'deleteToGroupEnd',
-  // EMACS/MACOS BINDINGS
-  'mac:Ctrl-KeyB': 'moveToPreviousChar',
-  'mac:Ctrl-KeyF': 'moveToNextChar',
-  'mac:Ctrl-KeyP': 'moveUp',
-  'mac:Ctrl-KeyN': 'moveDown',
-  'mac:Ctrl-KeyA': 'moveToMathFieldStart',
-  'mac:Ctrl-KeyE': 'moveToMathFieldEnd',
-  'mac:Ctrl-Shift-KeyB': 'extendToPreviousChar',
-  'mac:Ctrl-Shift-KeyF': 'extendToNextChar',
-  'mac:Ctrl-Shift-KeyP': 'extendUp',
-  'mac:Ctrl-Shift-KeyN': 'extendDown',
-  'mac:Ctrl-Shift-KeyA': 'extendToMathFieldStart',
-  'mac:Ctrl-Shift-KeyE': 'extendToMathFieldEnd',
-  'mac:Ctrl-Alt-KeyB': 'moveToPreviousWord',
-  'mac:Ctrl-Alt-KeyF': 'moveToNextWord',
-  'mac:Ctrl-Shift-Alt-KeyB': 'extendToPreviousWord',
-  'mac:Ctrl-Shift-Alt-KeyF': 'extendToNextWord',
-  'mac:Ctrl-KeyH': 'deletePreviousChar',
-  'mac:Ctrl-KeyD': 'deleteNextChar',
-  'mac:Ctrl-KeyL': 'scrollIntoView',
-  'mac:Ctrl-KeyT': 'transpose',
-  'math:Shift-Quote': ['switch-mode', 'text', '', '“'],
-  'text:Shift-Quote': ['switch-mode', 'math', '”', ''],
-  // WOLFRAM MATHEMATICA BINDINGS
-  'math:Ctrl-Digit2': ['insert', '\\sqrt{#0}'],
-  'math:Ctrl-Digit5': 'moveToOpposite',
-  'math:Ctrl-Digit6': 'moveToSuperscript',
-  'math:Ctrl-Minus': 'moveToSubscript',
-  'math:Alt-BracketLeft': ['insert', '\\left\\lbrack #0 \\right\\rbrack'],
-  'math:Alt-Shift-BracketLeft': ['insert', '\\left\\lbrace #0 \\right\\rbrace'],
-  'math:Return': 'addRowAfter',
-  'math:Enter': 'addRowAfter',
-  'math:Ctrl-Comma': 'addColumnAfter',
-  // Excel shortcuts:
-  // Shift-space: select entire row, ctrl+space: select an entire column
-  // ctrl+shift++ or ctrl+numpad+
-  // ctrl+- to delete a row or columns
-  // MATHLIVE BINDINGS
-  'math:Alt-KeyQ': ['insert', '\\theta'],
-  'math:Alt-KeyP': ['insert', '\\pi'],
-  'math:Alt-KeyV': ['insert', '\\sqrt{#0}'],
-  'math:Alt-KeyW': ['insert', '\\sum_{i=#?}^{#?}'],
-  'math:Alt-KeyB': ['insert', '\\int_{#?}^{#?}'],
-  'math:Alt-KeyU': ['insert', '\\cup'],
-  'math:Alt-KeyN': ['insert', '\\cap'],
-  'math:Alt-KeyO': ['insert', '\\emptyset'],
-  'math:Alt-KeyD': ['insert', '\\differentialD'],
-  'math:Alt-Shift-KeyO': ['insert', '\\varnothing'],
-  'math:Alt-Shift-KeyD': ['insert', '\\partial'],
-  'math:Alt-Shift-KeyP': ['insert', '\\prod_{i=#?}^{#?}'],
-  'math:Alt-Shift-KeyU': ['insert', '\\bigcup'],
-  'math:Alt-Shift-KeyN': ['insert', '\\bigcap'],
-  'math:Alt-Shift-KeyA': ['insert', '\\forall'],
-  'math:Alt-Shift-KeyE': ['insert', '\\exists'],
-  'math:Alt-Digit5': ['insert', '\\infty'],
-  // "%" key
-  'math:Alt-Digit6': ['insert', '\\wedge'],
-  // "^" key
-  'math:Alt-Shift-Digit6': ['insert', '\\vee'],
-  // "^" key
-  'math:Alt-Digit9': ['insert', '('],
-  // "(" key, override smartFence
-  'math:Alt-Digit0': ['insert', ')'],
-  // ")" key, override smartFence
-  'math:Alt-Shift-Backslash': ['insert', '|'],
-  // "|" key, override smartFence
-  'math:Alt-Backslash': ['insert', '\\backslash'],
-  // "|" key, override command mode
-  'math:Slash': ['insert', '\\frac{#@}{#?}'],
-  'math:Alt-Slash': ['insert', '\\frac{#?}{#@}'],
-  'math:NumpadDivide': ['insert', '\\frac{#@}{#?}'],
-  'math:Alt-NumpadDivide': ['insert', '\\frac{#?}{#@}'],
-  'math:Shift-Backquote': ['insert', '\\~'],
-  'math:Alt-Shift-Slash': ['insert', '\\/'],
-  // Accessibility
-  'Alt-Shift-KeyK': 'toggleKeystrokeCaption',
-  'Alt-Space': 'toggleVirtualKeyboard',
-  // Note: On Mac OS (as of 10.12), there is a bug/behavior that causes
-  // a beep to be generated with certain command+control key combinations.
-  // The workaround is to create a default binding file to silence them.
-  // In ~/Library/KeyBindings/DefaultKeyBinding.dict add these entries:
-
-  /*
-  {
-     "^@\UF701" = "noop:";
-     "^@\UF702" = "noop:";
-     "^@\UF703" = "noop:";
-  }
-  */
-  'mac:Ctrl-Meta-Up': ['speak', 'parent', {
-    withHighlighting: false
-  }],
-  '!mac:Ctrl-Alt-Up': ['speak', 'parent', {
-    withHighlighting: false
-  }],
-  'mac:Ctrl-Meta-Down': ['speak', 'group', {
-    withHighlighting: false
-  }],
-  '!mac:Ctrl-Alt-Down': ['speak', 'group', {
-    withHighlighting: false
-  }],
-  'mac:Ctrl-Meta-Left': ['speak', 'left', {
-    withHighlighting: false
-  }],
-  '!mac:Ctrl-Alt-Left': ['speak', 'left', {
-    withHighlighting: false
-  }],
-  'mac:Ctrl-Meta-Right': ['speak', 'right', {
-    withHighlighting: false
-  }],
-  '!mac:Ctrl-Alt-Right': ['speak', 'right', {
-    withHighlighting: false
-  }],
-  '!mac:Ctrl-Alt-Period': ['speak', 'selection', {
-    withHighlighting: false
-  }],
-  'mac:Ctrl-Meta-Period': ['speak', 'selection', {
-    withHighlighting: false
-  }],
-  'mac:Ctrl-Meta-Shift-Up': ['speak', 'parent', {
-    withHighlighting: true
-  }],
-  '!mac:Ctrl-Alt-Shift-Up': ['speak', 'parent', {
-    withHighlighting: true
-  }],
-  'mac:Ctrl-Meta-Shift-Down': ['speak', 'group', {
-    withHighlighting: true
-  }],
-  '!mac:Ctrl-Alt-Shift-Down': ['speak', 'group', {
-    withHighlighting: true
-  }],
-  'mac:Ctrl-Meta-Shift-Left': ['speak', 'left', {
-    withHighlighting: true
-  }],
-  '!mac:Ctrl-Alt-Shift-Left': ['speak', 'left', {
-    withHighlighting: true
-  }],
-  'mac:Ctrl-Meta-Shift-Right': ['speak', 'right', {
-    withHighlighting: true
-  }],
-  '!mac:Ctrl-Alt-Shift-Right': ['speak', 'right', {
-    withHighlighting: true
-  }],
-  '!mac:Ctrl-Alt-Shift-Period': ['speak', 'selection', {
-    withHighlighting: true
-  }],
-  'mac:Ctrl-Meta-Shift-Period': ['speak', 'selection', {
-    withHighlighting: true
-  }] // '!mac:Ctrl-Alt-Shift-Home': ['speak', 'start', {withHighlighting: true}],
-  // 'mac:Ctrl-Alt-Shift-Home':  ['speak', 'start', {withHighlighting: true}],
-  // '!mac:Ctrl-Alt-Shift-End':  ['speak', 'end', {withHighlighting: true}],
-  // 'mac:Ctrl-Alt-Shift-End':   ['speak', 'end', {withHighlighting: true}],
-
-  /**
-   * Most commands can be associated to their keyboard shortcuts from the 
-   * KEYBOARD_SHORTCUTS table above, for example 'speakSelection' -> 'Ctrl-KeyR'
-   * However, those that contain complex commands are more ambiguous.
-   * For example, '\sqrt' -> 'math:Alt-KeyV'. This table provides the reverse
-   * mapping for those more complex commands. It is used when displaying 
-   * keyboard shortcuts for specific commands in the popover.
-   * @memberof module:editor/shortcuts
-   * @type {Object<string,string>}
-   */
-
-};
-var REVERSE_KEYBOARD_SHORTCUTS = {
-  '\\theta': 'Alt-KeyQ',
-  '\\sqrt': ['Alt-KeyV', 'Ctrl-Digit2'],
-  '\\pi': 'Alt-KeyP',
-  '\\prod': 'Alt-Shift-KeyP',
-  '\\sum': 'Alt-KeyW',
-  '\\int': 'Alt-KeyB',
-  '\\cup': 'Alt-KeyU',
-  '\\cap': 'Alt-KeyN',
-  '\\bigcup': 'Alt-Shift-KeyU',
-  '\\bigcap': 'Alt-Shift-KeyN',
-  '\\forall': 'Alt-Shift-KeyA',
-  '\\exists': 'Alt-Shift-KeyE',
-  '\\infty': 'Alt-Digit5',
-  '\\wedge': 'Alt-Digit5',
-  '\\vee': 'Alt-Shift-Digit6',
-  '\\differentialD': 'Alt-keyD',
-  '\\partial': 'Alt-Shift-KeyD',
-  '\\frac': 'Slash',
-  '\\emptyset': 'Alt-KeyO',
-  '\\varnothing': 'Alt-Shift-KeyO',
-  '\\~': '~'
-  /**
-   * These shortcut strings are replaced with the corresponding LaTeX expression
-   * without requiring an escape sequence or command.
-   * 
-   * @type {Object.<string,string>}
-   * @memberof module:editor/shortcuts
-   */
-
-};
-var INLINE_SHORTCUTS = {
-  // Primes
-  "''": {
-    mode: 'math',
-    value: '^{\\doubleprime}'
-  },
-  // Greek letters
-  'alpha': '\\alpha',
-  'delta': '\\delta',
-  'Delta': '\\Delta',
-  'pi': {
-    mode: 'math',
-    value: '\\pi'
-  },
-  'pi ': {
-    mode: 'text',
-    value: '\\pi '
-  },
-  'π': '\\pi',
-  'Pi': '\\Pi',
-  'theta': '\\theta',
-  'Theta': '\\Theta',
-  // Letter-like
-  'ii': {
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\imaginaryI'
-  },
-  'jj': {
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\imaginaryJ'
-  },
-  'ee': {
-    mode: 'math',
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\exponentialE'
-  },
-  'nabla': {
-    mode: 'math',
-    value: '\\nabla'
-  },
-  'grad': {
-    mode: 'math',
-    value: '\\nabla'
-  },
-  'del': {
-    mode: 'math',
-    value: '\\partial'
-  },
-  "\u221E": '\\infty',
-  // @TODO: doesn't work
-  // '&infin;': '\\infty',
-  // '&#8734;': '\\infty',
-  'oo': {
-    mode: 'math',
-    after: 'nothing+digit+frac+surd+binop+relop+punct+array+openfence+closefence+space',
-    value: '\\infty'
-  },
-  // Big operators
-  '∑': {
-    mode: 'math',
-    value: '\\sum'
-  },
-  'sum': {
-    mode: 'math',
-    value: '\\sum_{#?}^{#?}'
-  },
-  'prod': {
-    mode: 'math',
-    value: '\\prod_{#?}^{#?}'
-  },
-  'sqrt': {
-    mode: 'math',
-    value: '\\sqrt'
-  },
-  // '∫':                    '\\int',             // There's a alt-B command for this
-  '∆': {
-    mode: 'math',
-    value: '\\differentialD'
-  },
-  // @TODO: is \\diffD most common?
-  '∂': {
-    mode: 'math',
-    value: '\\differentialD'
-  },
-  // Functions
-  'sin': {
-    mode: 'math',
-    value: '\\sin'
-  },
-  'cos': {
-    mode: 'math',
-    value: '\\cos'
-  },
-  'tan': {
-    mode: 'math',
-    value: '\\tan'
-  },
-  'tanh': {
-    mode: 'math',
-    value: '\\tanh'
-  },
-  'log': {
-    mode: 'math',
-    value: '\\log'
-  },
-  'ln': {
-    mode: 'math',
-    value: '\\ln'
-  },
-  'exp': {
-    mode: 'math',
-    value: '\\exp'
-  },
-  'lim': {
-    mode: 'math',
-    value: '\\lim_{#?}'
-  },
-  // Differentials
-  // According to ISO31/XI (ISO 80000-2), differentials should be upright
-  'dx': '\\differentialD x',
-  'dy': '\\differentialD y',
-  'dt': '\\differentialD t',
-  // Logic
-  'AA': {
-    mode: 'math',
-    value: '\\forall'
-  },
-  'EE': {
-    mode: 'math',
-    value: '\\exists'
-  },
-  '!EE': {
-    mode: 'math',
-    value: '\\nexists'
-  },
-  '&&': {
-    mode: 'math',
-    value: '\\land'
-  },
-  // The shortcut for the greek letter "xi" is interfering with "x in"
-  'xin': {
-    mode: 'math',
-    after: 'nothing+text+relop+punct+openfence+space',
-    value: 'x \\in'
-  },
-  'in': {
-    mode: 'math',
-    after: 'nothing+letter+closefence',
-    value: '\\in'
-  },
-  '!in': {
-    mode: 'math',
-    value: '\\notin'
-  },
-  // Sets
-  'NN': '\\N',
-  // Natural numbers
-  'ZZ': '\\Z',
-  // Integers
-  'QQ': '\\Q',
-  // Rational numbers
-  'RR': '\\R',
-  // Real numbers
-  'CC': '\\C',
-  // Complex numbers
-  'PP': '\\P',
-  // Prime numbers
-  // Operators
-  'xx': '\\times',
-  '+-': '\\pm',
-  // Relational operators
-  '!=': '\\ne',
-  '>=': '\\ge',
-  '<=': '\\le',
-  '<<': '\\ll',
-  '>>': '\\gg',
-  '~~': '\\approx',
-  // More operators
-  '≈': '\\approx',
-  '?=': '\\questeq',
-  '÷': '\\div',
-  '¬': '\\neg',
-  ':=': '\\coloneq',
-  '::': '\\Colon',
-  // Fences
-  '(:': '\\langle',
-  ':)': '\\rangle',
-  // More Greek letters
-  'beta': '\\beta',
-  'chi': '\\chi',
-  'epsilon': '\\epsilon',
-  'varepsilon': '\\varepsilon',
-  'eta': {
-    mode: 'math',
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\eta'
-  },
-  'eta ': {
-    mode: 'text',
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\eta '
-  },
-  'gamma': '\\gamma',
-  'Gamma': '\\Gamma',
-  'iota': '\\iota',
-  'kappa': '\\kappa',
-  'lambda': '\\lambda',
-  'Lambda': '\\Lambda',
-  'mu': {
-    mode: 'math',
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\mu'
-  },
-  'mu ': {
-    mode: 'text',
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\mu '
-  },
-  'nu': {
-    mode: 'math',
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\nu'
-  },
-  'nu ': {
-    mode: 'text',
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\nu '
-  },
-  'µ': '\\mu',
-  // @TODO: or micro?
-  'phi': {
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\phi'
-  },
-  'Phi': {
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\Phi'
-  },
-  'varphi': '\\varphi',
-  'psi': {
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\psi'
-  },
-  'Psi': {
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\Psi'
-  },
-  'rho': {
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\rho'
-  },
-  'sigma': '\\sigma',
-  'Sigma': '\\Sigma',
-  'tau': {
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\tau'
-  },
-  'vartheta': '\\vartheta',
-  'upsilon': "\\upsilon",
-  'xi': {
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\xi'
-  },
-  'Xi': {
-    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
-    value: '\\Xi'
-  },
-  'zeta': '\\zeta',
-  'omega': '\\omega',
-  'Omega': '\\Omega',
-  'Ω': '\\omega',
-  // @TODO: or ohm?
-  // More Logic
-  'forall': '\\forall',
-  'exists': {
-    mode: 'math',
-    value: '\\exists'
-  },
-  '!exists': {
-    mode: 'math',
-    value: '\\nexists'
-  },
-  ':.': {
-    mode: 'math',
-    value: '\\therefore'
-  },
-  // MORE FUNCTIONS
-  // 'arg': '\\arg',
-  'liminf': '\\operatorname*{lim~inf}_{#?}',
-  'limsup': '\\operatorname*{lim~sup}_{#?}',
-  'argmin': '\\operatorname*{arg~min}_{#?}',
-  'argmax': '\\operatorname*{arg~max}_{#?}',
-  'det': '\\det',
-  'mod': {
-    mode: 'math',
-    value: '\\mod'
-  },
-  'max': {
-    mode: 'math',
-    value: '\\max'
-  },
-  'min': {
-    mode: 'math',
-    value: '\\min'
-  },
-  'erf': '\\operatorname{erf}',
-  'erfc': '\\operatorname{erfc}',
-  'bessel': {
-    mode: 'math',
-    value: '\\operatorname{bessel}'
-  },
-  'mean': {
-    mode: 'math',
-    value: '\\operatorname{mean}'
-  },
-  'median': {
-    mode: 'math',
-    value: '\\operatorname{median}'
-  },
-  'fft': {
-    mode: 'math',
-    value: '\\operatorname{fft}'
-  },
-  'lcm': {
-    mode: 'math',
-    value: '\\operatorname{lcm}'
-  },
-  'gcd': {
-    mode: 'math',
-    value: '\\operatorname{gcd}'
-  },
-  'randomReal': '\\operatorname{randomReal}',
-  'randomInteger': '\\operatorname{randomInteger}',
-  'Re': {
-    mode: 'math',
-    value: '\\operatorname{Re}'
-  },
-  'Im': {
-    mode: 'math',
-    value: '\\operatorname{Im}'
-  },
-  // UNITS
-  'mm': {
-    mode: 'math',
-    after: 'nothing+digit',
-    value: '\\operatorname{mm}' // millimeter
-
-  },
-  'cm': {
-    mode: 'math',
-    after: 'nothing+digit',
-    value: '\\operatorname{cm}' // centimeter
-
-  },
-  'km': {
-    mode: 'math',
-    after: 'nothing+digit',
-    value: '\\operatorname{km}' // kilometer
-
-  },
-  'kg': {
-    mode: 'math',
-    after: 'nothing+digit',
-    value: '\\operatorname{kg}' // kilogram
-
-  },
-  // '||':                   '\\lor',
-  '...': '\\ldots',
-  // In general, use \ldots
-  '+...': '+\\cdots',
-  // ... but use \cdots after + ...
-  '-...': '-\\cdots',
-  // ... - and ...
-  '->...': '\\to\\cdots',
-  // ->
-  '->': '\\to',
-  '|->': '\\mapsto',
-  '-->': '\\longrightarrow',
-  //    '<-':                   '\\leftarrow',
-  '<--': '\\longleftarrow',
-  '=>': '\\Rightarrow',
-  '==>': '\\Longrightarrow',
-  // '<=': '\\Leftarrow',     // CONFLICTS WITH LESS THAN OR EQUAL
-  '<=>': '\\Leftrightarrow',
-  '<->': '\\leftrightarrow',
-  '(.)': '\\odot',
-  '(+)': '\\oplus',
-  '(/)': '\\oslash',
-  '(*)': '\\otimes',
-  '(-)': '\\ominus',
-  // '(-)':                  '\\circleddash',
-  '||': '\\Vert',
-  '{': '\\{',
-  '}': '\\}',
-  '*': '\\cdot'
-  /*
-      //
-      // ASCIIIMath
-      //
-      // Binary operation symbols
-      '**':                   '\\ast',
-      '***':                  '\\star',
-      '//':                   '\\slash',
-      '\\\\':                 '\\backslash',
-      'setminus':             '\\backslash',
-      '|><':                  '\\ltimes',
-      '><|':                  '\\rtimes',
-      '|><|':                 '\\bowtie',
-      '-:':                   '\\div',
-      'divide':               '\\div',
-      '@':                    '\\circ',
-      'o+':                   '\\oplus',
-      'ox':                   '\\otimes',
-      'o.':                   '\\odot',
-      '^^':                   '\\wedge',
-      '^^^':                  '\\bigwedge',
-      'vv':                   '\\vee',
-      'vvv':                  '\\bigvee',
-      'nn':                   '\\cap',
-      'nnn':                  '\\bigcap',
-      'uu':                   '\\cup',
-      'uuu':                  '\\bigcup',
-  
-      // Binary relation symbols
-      '-=':                   '\\equiv',
-      '~=':                   '\\cong',
-      'lt':                   '<',
-      'lt=':                  '\\leq',
-      'gt':                   '>',
-      'gt=':                  '\\geq',
-      '-<':                   '\\prec',
-      '-lt':                  '\\prec',
-      '-<=':                  '\\preceq',
-      // '>-':                   '\\succ',
-      '>-=':                  '\\succeq', 
-      'prop':                 '\\propto', 
-      'diamond':              '\\diamond',
-      'square':               '\\square',
-      'iff':                  '\\iff',
-  
-      'sub':                  '\\subset',
-      'sup':                  '\\supset',
-      'sube':                 '\\subseteq',
-      'supe':                 '\\supseteq',
-      'uarr':                 '\\uparrow',
-      'darr':                 '\\downarrow',
-      'rarr':                 '\\rightarrow',
-      'rArr':                 '\\Rightarrow',
-      'larr':                 '\\leftarrow',
-      'lArr':                 '\\Leftarrow',
-      'harr':                 '\\leftrightarrow',
-      'hArr':                 '\\Leftrightarrow',
-      'aleph':                '\\aleph',
-  
-      // Logic
-      'and':                  '\\land',
-      'or':                   '\\lor',
-      'not':                  '\\neg',
-      '_|_':                   '\\bot',
-      'TT':                   '\\top',
-      '|--':                  '\\vdash',
-      '|==':                  '\\models',
-      
-      // Other functions
-      '|__':                  '\\lfloor',
-      '__|':                  '\\rfloor',
-  
-      '|~':                   '\\lceil',
-      '~|':                   '\\rceil',
-  
-      // Arrows
-      '>->':                   '\\rightarrowtail',
-      '->>':                   '\\twoheadrightarrow',
-      '>->>':                  '\\twoheadrightarrowtail'
-  */
-
-};
-/**
- * Return an array of potential shortcuts
- * @param {string} s 
- * @param {object} config 
- * @return {string[]}
- */
-
-function startsWithString(s, config) {
-  var result = [];
-
-  var _loop = function _loop(i) {
-    var s2 = s.substring(i);
-    var skipDefaultShortcuts = config && config.overrideDefaultInlineShortcuts;
-
-    if (!skipDefaultShortcuts) {
-      Object.keys(INLINE_SHORTCUTS).forEach(function (key) {
-        if (key.startsWith(s2) && !result.includes(key)) {
-          result.push(key);
-        }
-      });
-    }
-
-    var customInlineShortcuts = config && config.inlineShortcuts ? config.inlineShortcuts : null;
-
-    if (customInlineShortcuts) {
-      Object.keys(customInlineShortcuts).forEach(function (key) {
-        if (key.startsWith(s2)) {
-          result.push(key);
-        }
-      });
-    }
-  };
-
-  for (var i = 0; i <= s.length - 1; i++) {
-    _loop(i);
-  }
-
-  return result;
-}
-/**
- * 
- * @param {string} mode
- * @param {object[]} siblings atoms preceding this potential shortcut
- * @param {string} shortcut 
- */
-
-
-function validateShortcut(mode, siblings, shortcut) {
-  if (!shortcut) return shortcut; // If it's a simple shortcut (no conditional), it's valid
-
-  if (typeof shortcut === 'string') return shortcut;
-  if (typeof shortcut.mode === 'string' && shortcut.mode !== mode) return null; // If we have no context, we assume all the shortcuts are valid
-
-  if (!siblings) return shortcut ? shortcut.value : undefined;
-  var nothing = false;
-  var letter = false;
-  var digit = false;
-  var isFunction = false;
-  var frac = false;
-  var surd = false;
-  var binop = false;
-  var relop = false;
-  var punct = false;
-  var array = false;
-  var openfence = false;
-  var closefence = false;
-  var text = false;
-  var space = false;
-  var sibling = siblings[siblings.length - 1];
-  var index = siblings.length - 1;
-
-  while (sibling && /msubsup|placeholder/.test(sibling.type)) {
-    index -= 1;
-    sibling = siblings[index];
-  }
-
-  nothing = !sibling || sibling.type === 'first'; // start of a group
-
-  if (sibling) {
-    text = sibling.mode === 'text';
-    letter = !text && sibling.type === 'mord' && _definitions.default.LETTER.test(sibling.body);
-    digit = !text && sibling.type === 'mord' && /[0-9]+$/.test(sibling.body);
-    isFunction = !text && sibling.isFunction;
-    frac = sibling.type === 'genfrac';
-    surd = sibling.type === 'surd';
-    binop = sibling.type === 'mbin';
-    relop = sibling.type === 'mrel';
-    punct = sibling.type === 'mpunct' || sibling.type === 'minner';
-    array = sibling.array;
-    openfence = sibling.type === 'mopen';
-    closefence = sibling.type === 'mclose' || sibling.type === 'leftright';
-    space = sibling.type === 'space';
-  }
-
-  if (typeof shortcut.after !== 'undefined') {
-    // If this is a conditional shortcut, consider the conditions now
-    if (/nothing/.test(shortcut.after) && nothing || /letter/.test(shortcut.after) && letter || /digit/.test(shortcut.after) && digit || /function/.test(shortcut.after) && isFunction || /frac/.test(shortcut.after) && frac || /surd/.test(shortcut.after) && surd || /binop/.test(shortcut.after) && binop || /relop/.test(shortcut.after) && relop || /punct/.test(shortcut.after) && punct || /array/.test(shortcut.after) && array || /openfence/.test(shortcut.after) && openfence || /closefence/.test(shortcut.after) && closefence || /text/.test(shortcut.after) && text || /space/.test(shortcut.after) && space) {
-      return shortcut.value;
-    }
-
-    return null;
-  }
-
-  return shortcut.value;
-}
-/**
- * This function is used to resolve inline shortcuts.
- * 
- * @param {string} mode
- * @param {string} context - atoms preceding the candidate, potentially used
- * to reduce which shortcuts are applicable. If 'null', no restrictions are 
- * applied.
- * @param {string} s - candidate inline shortcuts (e.g. `'pi'`)
- * @param {object} config 
- * @return {string} - A replacement string matching the shortcut (e.g. `'\pi'`)
- * @memberof module:editor/shortcuts
- * @private
- */
-
-
-function forString(mode, context, s, config) {
-  var result = '';
-  var skipDefaultShortcuts = config && config.overrideDefaultInlineShortcuts;
-
-  if (!skipDefaultShortcuts) {
-    result = validateShortcut(mode, context, INLINE_SHORTCUTS[s]);
-  }
-
-  var customInlineShortcuts = config && config.inlineShortcuts ? config.inlineShortcuts : null;
-  var customResult;
-
-  if (customInlineShortcuts) {
-    customResult = validateShortcut(mode, context, customInlineShortcuts[s]);
-  }
-
-  return customResult || result;
-}
-/**
- * Return `p`, the platform name if `p` is the current platform, otherwise
- * return `!p`. For example, when running on Windows, `platform('mac')` returns
- * `'!mac'`.
- * The valid values for `p` are:
- * - `'mac'`
- * - `'win'`
- * - `'android`'
- * - `'ios'`
- * - `'chromeos'`
- * - `'other'` (Linux, etc...)
- * @param {string} p The platform to test against.
- * @return {string} if we are running on the candidate platform, return it.
- * Otherwise, return "!" + candidate.
- * @memberof module:editor/shortcuts
- * @private
- */
-
-
-function platform(p) {
-  var result = 'other';
-
-  if (navigator && navigator.platform && navigator.userAgent) {
-    if (/^(mac)/i.test(navigator.platform)) {
-      result = 'mac';
-    } else if (/^(win)/i.test(navigator.platform)) {
-      result = 'win';
-    } else if (/(android)/i.test(navigator.userAgent)) {
-      result = 'android';
-    } else if (/(iphone)/i.test(navigator.userAgent) || /(ipod)/i.test(navigator.userAgent) || /(ipad)/i.test(navigator.userAgent)) {
-      result = 'ios';
-    } else if (/\bCrOS\b/i.test(navigator.userAgent)) {
-      result = 'chromeos';
-    }
-  }
-
-  return result === p ? p : '!' + p;
-}
-/**
- * Return the selector matching the keystroke.
- * 
- * @param {string} mode
- * @param {string} keystroke
- * @return {string}
- * @memberof module:editor/shortcuts
- * @private
- */
-
-
-function selectorForKeystroke(mode, keystroke) {
-  for (var _i = 0, _arr = [platform('mac') + ':' + mode + ':' + keystroke, platform('win') + ':' + mode + ':' + keystroke, platform('ios') + ':' + mode + ':' + keystroke, platform('android') + ':' + mode + ':' + keystroke, platform('chromeos') + ':' + mode + ':' + keystroke, platform('other') + ':' + mode + ':' + keystroke, platform('mac') + ':' + keystroke, platform('win') + ':' + keystroke, platform('ios') + ':' + keystroke, platform('android') + ':' + keystroke, platform('chromeos') + ':' + keystroke, mode + ':' + keystroke, keystroke]; _i < _arr.length; _i++) {
-    var c = _arr[_i];
-
-    if (KEYBOARD_SHORTCUTS[c]) {
-      return KEYBOARD_SHORTCUTS[c];
-    }
-  }
-
-  return '';
-}
-
-function commandToString(command) {
-  var result = command;
-
-  if (Array.isArray(result) && result.length > 0) {
-    result = result[0] + '(' + result.slice(1).join('') + ')';
-  }
-
-  return result;
-}
-
-function forCommand(command) {
-  var result = [];
-
-  if (typeof command === 'string') {
-    var candidate = REVERSE_KEYBOARD_SHORTCUTS[command];
-
-    if (Array.isArray(candidate)) {
-      result = candidate.slice();
-    } else if (candidate) {
-      result.push(candidate);
-    }
-  } // A command can be either a simple selector, or a selector
-  // with arguments. Normalize it to a string
-
-
-  command = commandToString(command);
-  var regex = new RegExp('^' + command.replace('\\', '\\\\').replace('|', '\\|').replace('*', '\\*').replace('$', '\\$').replace('^', '\\^') + '([^*a-zA-Z]|$)');
-
-  for (var shortcut in KEYBOARD_SHORTCUTS) {
-    if (KEYBOARD_SHORTCUTS.hasOwnProperty(shortcut)) {
-      if (regex.test(commandToString(KEYBOARD_SHORTCUTS[shortcut]))) {
-        var m = shortcut.match(/:([^:]*)$/);
-        if (m) result.push(m[1]);
-      }
-    }
-  }
-
-  return stringify(result);
-}
-/**
- * Return a human readable representation of an array of shortcut strings
- * @param {Object<string,string>} shortcuts 
- * @param {?string} join - optional, string in between each shortcut representation
- * @memberof module:editor/shortcuts
- * @private
- */
-
-
-function stringify(shortcuts, join) {
-  var result = '';
-  if (!Array.isArray(shortcuts)) shortcuts = [shortcuts];
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
-
-  try {
-    for (var _iterator = shortcuts[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var shortcut = _step.value;
-      var keyboardShortcut = void 0;
-      var platMatch = shortcut.match(/(^[^:]*):/);
-      var plat = platMatch ? platMatch[1] : '';
-
-      if (plat === platform('mac') || plat === platform('win') || plat === platform('ios') || plat === platform('android') || plat === platform('chromeos') || plat === platform('other')) {
-        var m = shortcut.match(/:([^:]*)$/);
-        keyboardShortcut = m ? m[1] : shortcut;
-      } else if (!['mac', '!mac', 'win', '!win', 'ios', '!ios', 'android', '!android', 'chromeos', '!chromeos', 'other', '!other'].includes(plat)) {
-        var _m = shortcut.match(/:([^:]*)$/);
-
-        keyboardShortcut = _m ? _m[1] : shortcut;
-      }
-
-      if (keyboardShortcut) {
-        var useSymbol = platform('mac') === 'mac' || platform('ios') === 'ios';
-        var modifiers = keyboardShortcut.length > 1 ? keyboardShortcut.split('-') : [keyboardShortcut];
-        var shortcutString = '';
-        var _iteratorNormalCompletion2 = true;
-        var _didIteratorError2 = false;
-        var _iteratorError2 = undefined;
-
-        try {
-          for (var _iterator2 = modifiers[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-            var modifier = _step2.value;
-
-            if (!useSymbol && shortcutString.length > 0) {
-              shortcutString += '<span class="ML__shortcut-join">+</span>';
-            }
-
-            if (modifier.substr(0, 3) === 'Key') {
-              shortcutString += modifier.substr(3, 1);
-            } else if (modifier.substr(0, 5) === 'Digit') {
-              shortcutString += modifier.substr(5, 1);
-            } else {
-              shortcutString += {
-                'Meta': useSymbol ? "\u2318" : 'command',
-                'Shift': useSymbol ? "\u21E7" : 'shift',
-                'Alt': useSymbol ? "\u2325" : 'alt',
-                'Ctrl': useSymbol ? "\u2303" : 'control',
-                '\n': useSymbol ? "\u23CE" : 'return',
-                'Return': useSymbol ? "\u23CE" : 'return',
-                'Enter': useSymbol ? "\u2324" : 'enter',
-                'Tab': useSymbol ? "\u21E5" : 'tab',
-                // 'Esc':          useSymbol ? '\u238b' : 'esc',
-                'Esc': 'esc',
-                'Backspace': useSymbol ? "\u232B" : 'backspace',
-                'Del': useSymbol ? "\u2326" : 'del',
-                'PageUp': useSymbol ? "\u21DE" : 'page up',
-                'PageDown': useSymbol ? "\u21DF" : 'page down',
-                'Home': useSymbol ? "\u2912" : 'home',
-                'End': useSymbol ? "\u2913" : 'end',
-                'Spacebar': 'space',
-                'Semicolon': ';',
-                'Period': '.',
-                'Comma': ',',
-                'Minus': '-',
-                'Equal': '=',
-                'Quote': '\'',
-                'BracketLeft': '[',
-                'BracketRight': ']',
-                'Backslash': '\\',
-                'IntlBackslash': '\\',
-                'Backquote': '`',
-                'Slash': '/',
-                'NumpadMultiply': '* &#128290;',
-                'NumpadDivide': '/ &#128290;',
-                // Numeric keypad
-                'NumpadSubtract': '- &#128290;',
-                'NumpadAdd': '+ &#128290;',
-                'NumpadDecimal': '. &#128290;',
-                'NumpadComma': ', &#128290;',
-                'Help': 'help',
-                'Left': "\u21E0",
-                'Up': "\u21E1",
-                'Right': "\u21E2",
-                'Down': "\u21E3"
-              }[modifier] || modifier;
-            }
-          }
-        } catch (err) {
-          _didIteratorError2 = true;
-          _iteratorError2 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-              _iterator2.return();
-            }
-          } finally {
-            if (_didIteratorError2) {
-              throw _iteratorError2;
-            }
-          }
-        }
-
-        if (result.length > 0) {
-          result += join || ' or ';
-        } // if (shortcutString.length === 1) {
-        //     shortcutString = shortcutString + ' (U+' + 
-        //         ('0000' + shortcutString.codePointAt(0).toString(16)).substr(-4) + 
-        //         ')';
-        // }
-
-
-        result += shortcutString;
-      }
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator.return != null) {
-        _iterator.return();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
-    }
-  }
-
-  return result;
-}
-
-var _default = {
-  KEYBOARD_SHORTCUTS: KEYBOARD_SHORTCUTS,
-  INLINE_SHORTCUTS: INLINE_SHORTCUTS,
-  stringify: stringify,
-  startsWithString: startsWithString,
-  forString: forString,
-  selectorForKeystroke: selectorForKeystroke,
-  forCommand: forCommand
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-undo.js b/dist/editor/editor-undo.js
deleted file mode 100644
index f4bedfc77..000000000
--- a/dist/editor/editor-undo.js
+++ /dev/null
@@ -1,246 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
-
-function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-/**
- *
- * @class UndoManager
- * @property {MathAtom[]} mathlist
- * @property {object[]} stack Stack of undo/redo states
- * @property {number} index Index pointing to the undo/redo stack
- * @property {number} maximumDepth Maximum number of undo/redo states
- * @global
- * @private
- */
-var UndoManager =
-/*#__PURE__*/
-function () {
-  function UndoManager(mathlist) {
-    _classCallCheck(this, UndoManager);
-
-    this.mathlist = mathlist;
-    this.maximumDepth = 1000;
-    this.record = false;
-    this.canCoalesce = false;
-    this.reset();
-  }
-
-  _createClass(UndoManager, [{
-    key: "reset",
-    value: function reset() {
-      this.stack = [];
-      this.index = -1;
-    }
-  }, {
-    key: "startRecording",
-    value: function startRecording() {
-      this.record = true;
-    }
-    /**
-     *
-     * @return {boolean}
-     * @memberof UndoManager
-     * @instance
-     * @private
-     */
-
-  }, {
-    key: "canUndo",
-    value: function canUndo() {
-      return this.index > 0;
-    }
-    /**
-     *
-     * @return {boolean}
-     * @memberof UndoManager
-     * @instance
-     * @private
-     */
-
-  }, {
-    key: "canRedo",
-    value: function canRedo() {
-      return this.index !== this.stack.length - 1;
-    }
-    /**
-     *
-     * @memberof UndoManager
-     * @instance
-     * @private
-     */
-
-  }, {
-    key: "undo",
-    value: function undo(options) {
-      if (this.canUndo()) {
-        if (options && typeof options.onUndoStateWillChange === 'function') {
-          options.onUndoStateWillChange(this.mathlist.target, 'undo');
-        }
-
-        this.restore(this.stack[this.index - 1], options);
-        this.index -= 1;
-
-        if (options && typeof options.onUndoStateDidChange === 'function') {
-          options.onUndoStateDidChange(this.mathlist.target, 'undo');
-        }
-
-        this.canCoalesce = false;
-      }
-    }
-    /**
-     *
-     * @memberof UndoManager
-     * @instance
-     * @private
-     */
-
-  }, {
-    key: "redo",
-    value: function redo(options) {
-      if (this.canRedo()) {
-        if (options && options.onUndoStateWillChange === 'function') {
-          options.onUndoStateWillChange(this.mathlist.target, 'redo');
-        }
-
-        this.index += 1;
-        this.restore(this.stack[this.index], options);
-
-        if (options && typeof options.onUndoStateDidChange === 'function') {
-          options.onUndoStateDidChange(this.mathlist.target, 'redo');
-        }
-
-        this.canCoalesce = false;
-      }
-    }
-    /**
-     * 
-     * @memberof UndoManager
-     * @instance
-     * @private
-     */
-
-  }, {
-    key: "pop",
-    value: function pop() {
-      if (this.canUndo()) {
-        this.index -= 1;
-        this.stack.pop();
-      }
-    }
-    /**
-     * Push a snapshot of the content and selection of the math field onto the
-     * undo stack so that it can potentially be reverted to later.
-     * @memberof UndoManager
-     * @instance
-     * @private
-     */
-
-  }, {
-    key: "snapshot",
-    value: function snapshot(options) {
-      if (!this.record) return;
-
-      if (options && options.onUndoStateWillChange === 'function') {
-        options.onUndoStateWillChange(this.mathlist.target, 'snapshot');
-      } // Drop any entries that are part of the redo stack
-
-
-      this.stack.splice(this.index + 1, this.stack.length - this.index - 1); // Add a new entry
-
-      this.stack.push({
-        latex: this.mathlist.root.toLatex(),
-        selection: this.mathlist.toString()
-      });
-      this.index++; // If we've reached the maximum number of undo operations, forget the 
-      // oldest one.
-
-      if (this.stack.length > this.maximumDepth) {
-        this.stack.shift();
-      }
-
-      if (options && typeof options.onUndoStateDidChange === 'function') {
-        options.onUndoStateDidChange(this.mathlist.target, 'snapshot');
-      }
-
-      this.canCoalesce = false;
-    }
-    /**
-     * 
-     * @param {Object.<any>} options 
-     */
-
-  }, {
-    key: "snapshotAndCoalesce",
-    value: function snapshotAndCoalesce(options) {
-      if (this.canCoalesce) {
-        this.pop();
-      }
-
-      this.snapshot(options);
-      this.canCoalesce = true;
-    }
-    /**
-     * Return an object capturing the state of the content and selection of the
-     * math field. Pass this object to restore() to reset the value of the math
-     * field to this saved value. This does not affect the undo stack.
-    */
-
-  }, {
-    key: "save",
-    value: function save() {
-      return {
-        latex: this.mathlist.root.toLatex(),
-        selection: this.mathlist.toString()
-      };
-    }
-    /**
-     * Set the content and selection of the math field to a value previously
-     * captured with save() or stored in the undo stack.
-     * This does not affect the undo stack.
-    */
-
-  }, {
-    key: "restore",
-    value: function restore(state, options) {
-      var wasSuppressing = this.mathlist.suppressChangeNotifications;
-
-      if (options.suppressChangeNotifications !== undefined) {
-        this.mathlist.suppressChangeNotifications = options.suppressChangeNotifications;
-      } // Restore the content
-
-
-      this.mathlist.insert(state ? state.latex : '', _objectSpread({
-        mode: 'math',
-        insertionMode: 'replaceAll',
-        selectionMode: 'after',
-        format: 'latex'
-      }, options)); // Restore the selection
-
-      this.mathlist.setPath(state ? state.selection : [{
-        relation: 'body',
-        offset: 0
-      }]);
-      this.mathlist.suppressChangeNotifications = wasSuppressing;
-    }
-  }]);
-
-  return UndoManager;
-}();
-
-var _default = {
-  UndoManager: UndoManager
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-virtualKeyboard.js b/dist/editor/editor-virtualKeyboard.js
deleted file mode 100644
index b4da4782f..000000000
--- a/dist/editor/editor-virtualKeyboard.js
+++ /dev/null
@@ -1,1357 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
-
-var _span = _interopRequireDefault(require("../core/span.js"));
-
-var _lexer = _interopRequireDefault(require("../core/lexer.js"));
-
-var _parser = _interopRequireDefault(require("../core/parser.js"));
-
-var _color2 = _interopRequireDefault(require("../core/color.js"));
-
-require("../addons/outputLatex.js");
-
-var _l10n = require("./l10n.js");
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-var KEYBOARDS = {
-  'numeric': {
-    tooltip: 'keyboard.tooltip.numeric',
-    layer: 'math',
-    label: '123',
-    layers: ['math']
-  },
-  'roman': {
-    tooltip: 'keyboard.tooltip.roman',
-    layer: 'lower-roman',
-    label: 'ABC',
-    layers: ['lower-roman', 'upper-roman', 'symbols']
-  },
-  'greek': {
-    tooltip: 'keyboard.tooltip.greek',
-    layer: 'lower-greek',
-    label: '&alpha;&beta;&gamma;',
-    classes: 'tex-math',
-    layers: ['lower-greek', 'upper-greek']
-  },
-  'functions': {
-    tooltip: 'keyboard.tooltip.functions',
-    layer: 'functions',
-    label: '<i>f</i>&thinsp;()',
-    classes: 'tex',
-    layers: ['functions']
-  },
-  'command': {
-    tooltip: 'keyboard.tooltip.command',
-    // For the command keyboard, perform a command rather than
-    // doing a simple layer switch, as we want to enter command mode
-    // when the keyboard is activated
-    command: 'enterCommandMode',
-    label: "<svg><use xlink:href='#svg-command' /></svg>",
-    layers: ['lower-command', 'upper-command', 'symbols-command']
-  },
-  'style': {
-    tooltip: 'keyboard.tooltip.style',
-    layer: 'style',
-    label: '<b>b</b><i>i</i>𝔹'
-  }
-};
-var SHIFTED_KEYS = {
-  '\\varphi ': {
-    label: '&Phi;',
-    insert: '\\Phi '
-  },
-  '\\varsigma ': {
-    label: '&Sigma;',
-    insert: '\\Sigma '
-  },
-  '\\epsilon ': {
-    label: '&#x0190;',
-    insert: '{\\char"0190}'
-  },
-  '\\rho ': {
-    label: '&#x3A1',
-    insert: '{\\char"3A1}'
-  },
-  '\\tau ': {
-    label: '&#x3A4;',
-    insert: '{\\char"3A4}'
-  },
-  "\\upsilon ": {
-    label: '&Upsilon;',
-    insert: "\\Upsilon "
-  },
-  '\\theta ': {
-    label: '&Theta;',
-    insert: '\\Theta '
-  },
-  '\\iota ': {
-    label: '&Iota;',
-    insert: '{\\char"399}'
-  },
-  '\\omicron ': {
-    label: '&#x039F;',
-    insert: '{\\char"39F}'
-  },
-  '\\pi ': {
-    label: '&Pi;',
-    insert: '\\Pi '
-  },
-  '\\alpha ': {
-    label: '&Alpha;',
-    insert: '{\\char"391}'
-  },
-  '\\sigma ': {
-    label: '&Sigma;',
-    insert: '\\Sigma '
-  },
-  '\\delta ': {
-    label: '&Delta;',
-    insert: '\\Delta '
-  },
-  '\\phi ': {
-    label: '&#x03a6;',
-    insert: '\\Phi '
-  },
-  '\\gamma ': {
-    label: '&Gamma;',
-    insert: '\\Gamma '
-  },
-  '\\eta ': {
-    label: '&Eta;',
-    insert: '{\\char"397}'
-  },
-  '\\xi ': {
-    label: '&Xi;',
-    insert: '\\Xi '
-  },
-  '\\kappa ': {
-    label: '&Kappa;',
-    insert: '{\\char"39A}'
-  },
-  '\\lambda ': {
-    label: '&Lambda;',
-    insert: '\\Lambda '
-  },
-  '\\zeta ': {
-    label: '&Zeta;',
-    insert: '{\\char"396}'
-  },
-  '\\chi ': {
-    label: '&Chi;',
-    insert: '{\\char"3A7}'
-  },
-  '\\psi ': {
-    label: '&Psi;',
-    insert: '\\Psi '
-  },
-  '\\omega ': {
-    label: '&Omega;',
-    insert: '\\Omega '
-  },
-  '\\beta ': {
-    label: '&Beta;',
-    insert: '{\\char"392}'
-  },
-  '\\nu ': {
-    label: '&Nu;',
-    insert: '{\\char"39D}'
-  },
-  '\\mu ': {
-    label: '&Mu;',
-    insert: '{\\char"39C}'
-  } // const FUNCTIONS = [
-  //     'Basic',
-  //         ['\\sin', '\\cos', '\\tan', '\\min', '\\max', '\\gcd', '\\lcm', '\\repeat', 'encapsulate', 'recognize'],
-  //     'Operators',
-  //         ['\\sum', '\\prod', '\\bigcup_x']
-  // ]
-
-};
-var ALT_KEYS_BASE = {
-  '0': ['\\emptyset', '\\varnothing', '\\infty', {
-    latex: '#?_0',
-    insert: '#@_0'
-  }, '\\circ', '\\bigcirc', '\\bullet'],
-  '2': ['\\frac{1}{2}', {
-    latex: '#?^2',
-    insert: '#@^2'
-  }],
-  '3': ['\\frac{1}{3}', {
-    latex: '#?^3',
-    insert: '#@^3'
-  }],
-  '.': [',', ';', '\\colon', {
-    latex: ':',
-    aside: 'ratio'
-  }, {
-    latex: '\\cdotp',
-    aside: 'center dot',
-    classes: 'box'
-  }, {
-    latex: '\\cdots',
-    aside: 'center ellipsis',
-    classes: 'box'
-  }, {
-    latex: '\\ldotp',
-    aside: 'low dot',
-    classes: 'box'
-  }, {
-    latex: '\\ldots',
-    aside: 'low ellipsis',
-    classes: 'box'
-  }, {
-    latex: '\\vdots',
-    aside: '',
-    classes: 'box'
-  }, {
-    latex: '\\ddots',
-    aside: '',
-    classes: 'box'
-  }, '\\odot', '\\oslash', '\\circledcirc'],
-  '*': ['\\cdot', '\\ast', '\\star', '\\bigstar', '\\ltimes', '\\rtimes', '\\rightthreetimes', '\\leftthreetimes', '\\intercal', '\\prod', {
-    latex: '\\prod_{n\\mathop=0}^{\\infty}',
-    classes: 'small'
-  }],
-  '+': ['\\pm', '\\mp', '\\sum', {
-    latex: '\\sum_{n\\mathop=0}^{\\infty}',
-    classes: 'small'
-  }, '\\dotplus', '\\oplus'],
-  '-': ['\\pm', '\\mp', '\\ominus', '\\vert #0  \\vert'],
-  '/': ['\\divideontimes', '/', '\\div'],
-  '(': ['\\left( #0\\right)', '\\left[ #0\\right]', '\\left\\{ #0\\right\\}', '\\left\\langle #0\\right\\rangle', '\\lfloor', '\\llcorner', '(', '\\lbrack', '\\lvert', '\\lVert', '\\lgroup', '\\langle', '\\lceil', "\\ulcorner", '\\lmoustache', '\\lbrace'],
-  ')': ['\\rfloor', '\\lrcorner', ')', '\\rbrack', '\\rvert', '\\rVert', '\\rgroup', '\\rangle', '\\rceil', "\\urcorner", '\\rmoustache', '\\rbrace'],
-  '=': ['\\cong', '\\asymp', '\\equiv', '\\differencedelta', '\\varpropto', '\\thickapprox', '\\approxeq', '\\thicksim', '\\backsim', '\\eqsim', '\\simeq', '\\Bumpeq', '\\bumpeq', '\\doteq', '\\Doteq', '\\fallingdotseq', '\\risingdotseq', '\\coloneq', '\\eqcirc', '\\circeq', '\\triangleq', '\\between'],
-  '!=': ['\\neq', '\\ncong', '', '\\nsim'],
-  '<': ['\\leq', '\\leqq', '\\lneqq', '\\ll', '\\nless', '\\nleq', '\\precsim', '\\lesssim', '\\lessgtr', '\\prec', '\\preccurlyeq', '\\lessdot', '\\nprec'],
-  '>': ['\\geq', '\\geqq', '\\gneqq', '\\gg', '\\ngtr', '\\ngeq', '\\succsim', '\\gtrsim', '\\gtrless', '\\succ', '\\succcurlyeq', '\\gtrdot', '\\nsucc'],
-  'set': ['\\in', '\\owns', '\\subset', '\\nsubset', '\\supset', '\\nsupset'],
-  '!set': ['\\notin', '\\backepsilon'],
-  'subset': [],
-  'supset': [],
-  'infinity': ['\\aleph_0', '\\aleph_1', '\\omega', '\\mathfrak{m}'],
-  'numeric-pi': ['\\prod', '\\theta', '\\rho', '\\sin', '\\cos', '\\tan'],
-  'ee': ['\\times 10^{#?}', '\\ln', '\\ln_{10}', '\\log'],
-  '^': ['_{#?}'],
-  // Integrals
-  'int': [{
-    latex: '\\int_{#?}^{#?}',
-    classes: 'small'
-  }, {
-    latex: '\\int',
-    classes: 'small'
-  }, {
-    latex: '\\smallint',
-    classes: 'small'
-  }, {
-    latex: '\\iint',
-    classes: 'small'
-  }, {
-    latex: '\\iiint',
-    classes: 'small'
-  }, {
-    latex: '\\oint',
-    classes: 'small'
-  }, {
-    latex: '\\dfrac{\\rd}{\\rd x}',
-    classes: 'small'
-  }, {
-    latex: '\\frac{\\partial}{\\partial x}',
-    classes: 'small'
-  }, '\\capitalDifferentialD', '\\rd', '\\partial'],
-  'nabla': ['\\nabla\\times', '\\nabla\\cdot', '\\nabla^{2}'],
-  '!': ['!!', '\\Gamma', '\\Pi'],
-  'accents': ['\\bar{#@}', '\\vec{#@}', '\\hat{#@}', '\\check{#@}', '\\dot{#@}', '\\ddot{#@}', '\\mathring{#@}', '\\breve{#@}', '\\acute{#@}', '\\tilde{#@}', '\\grave{#@}'],
-  // 'absnorm': [{latex:'\\lVert #@ \\rVert', aside:'norm'},
-  //     {latex:'\\lvert #@ \\rvert', aside:'determinant'},
-  //     {latex:'\\begin{cardinality} #@ \\end{cardinality}', aside:'cardinality'},
-  //     {latex:'\\lvert #@ \\rvert', aside:'length'},
-  //     {latex:'\\lvert #@ \\rvert', aside:'order'},
-  // ],
-  'A': [{
-    latex: '\\aleph',
-    aside: 'aleph'
-  }, {
-    latex: '\\forall',
-    aside: 'for all'
-  }],
-  'a': [{
-    latex: '\\aleph',
-    aside: 'aleph'
-  }, {
-    latex: '\\forall',
-    aside: 'for all'
-  }],
-  'b': [{
-    latex: '\\beth',
-    aside: 'beth'
-  }],
-  'B': [{
-    latex: '\\beth',
-    aside: 'beth'
-  }],
-  'c': [{
-    latex: '\\C',
-    aside: 'set of complex numbers'
-  }],
-  'd': [{
-    latex: '\\daleth',
-    aside: 'daleth'
-  }],
-  'D': [{
-    latex: '\\daleth',
-    aside: 'daleth'
-  }],
-  'e': [{
-    latex: '\\exponentialE',
-    aside: 'exponential e'
-  }, {
-    latex: '\\exists',
-    aside: 'there is'
-  }, {
-    latex: '\\nexists',
-    aside: 'there isn’t'
-  }],
-  'g': [{
-    latex: '\\gimel',
-    aside: 'gimel'
-  }],
-  'G': [{
-    latex: '\\gimel',
-    aside: 'gimel'
-  }],
-  'h': [{
-    latex: '\\hbar',
-    aside: 'h bar'
-  }, {
-    latex: '\\hslash',
-    aside: 'h slash'
-  }],
-  'i': [{
-    latex: '\\imaginaryI',
-    aside: 'imaginary i'
-  }],
-  'j': [{
-    latex: '\\imaginaryJ',
-    aside: 'imaginary j'
-  }],
-  'l': [{
-    latex: '\\ell',
-    aside: 'ell'
-  }],
-  'n': [{
-    latex: '\\N',
-    aside: 'set of natural numbers'
-  }],
-  'p': [{
-    latex: '\\P',
-    aside: 'set of primes'
-  }],
-  'q': [{
-    latex: '\\Q',
-    aside: 'set of rational numbers'
-  }],
-  'r': [{
-    latex: '\\R',
-    aside: 'set of real numbers'
-  }],
-  'z': [{
-    latex: '\\Z',
-    aside: 'set of integers'
-  }],
-  'x-var': ['y', 'z', 't', 'r', {
-    latex: 'f(#?)',
-    classes: 'small'
-  }, {
-    latex: 'g(#?)',
-    classes: 'small'
-  }, 'x^2', 'x^n', 'x_n', 'x_{n+1}', 'x_i', 'x_{i+1}'],
-  'n-var': ['i', 'j', 'p', 'k', 'a', 'u'],
-  'ii': ['\\Re', '\\Im', '\\imaginaryJ', '\\Vert #0 \\Vert'],
-  'logic': [{
-    latex: '\\exists',
-    aside: 'there is'
-  }, {
-    latex: '\\nexists',
-    aside: 'there isn’t'
-  }, {
-    latex: '\\ni',
-    aside: 'such that'
-  }, {
-    latex: '\\Colon',
-    aside: 'such that'
-  }, {
-    latex: '\\implies',
-    aside: 'implies'
-  }, {
-    latex: '\\impliedby',
-    aside: 'implied by'
-  }, {
-    latex: '\\iff',
-    aside: 'if and only if'
-  }, {
-    latex: '\\land',
-    aside: 'and'
-  }, {
-    latex: '\\lor',
-    aside: 'or'
-  }, {
-    latex: '\\oplus',
-    aside: 'xor'
-  }, {
-    latex: '\\lnot',
-    aside: 'not'
-  }, {
-    latex: '\\downarrow',
-    aside: 'nor'
-  }, {
-    latex: "\\uparrow",
-    aside: 'nand'
-  }, {
-    latex: '\\curlywedge',
-    aside: 'nor'
-  }, {
-    latex: '\\bar\\curlywedge',
-    aside: 'nand'
-  }, // {latex:'\\barwedge', aside:'bar wedge'},
-  // {latex:'\\curlyvee', aside:'curly vee'},
-  // {latex:'\\veebar', aside:'vee bar'},
-  {
-    latex: '\\therefore',
-    aside: 'therefore'
-  }, {
-    latex: '\\because',
-    aside: 'because'
-  }, {
-    latex: '^\\biconditional',
-    aside: 'biconditional'
-  }, '\\leftrightarrow', '\\Leftrightarrow', '\\to', '\\models', '\\vdash', '\\gets', '\\dashv', '\\roundimplies'],
-  'set-operators': ['\\cap', '\\cup', '\\setminus', '\\smallsetminus', '\\complement'],
-  'set-relations': ['\\in', '\\notin', '\\ni', '\\owns', '\\subset', '\\supset', '\\subseteq', '\\supseteq', '\\subsetneq', '\\supsetneq', '\\varsubsetneq', '\\subsetneqq', '\\nsubset', '\\nsupset', '\\nsubseteq', '\\nsupseteq'],
-  'space': [{
-    latex: '\\char"203A\\!\\char"2039',
-    insert: '\\!',
-    aside: 'negative thin space<br>⁻³⧸₁₈ em'
-  }, {
-    latex: "\\unicode{\"203A}\\,\\unicode{\"2039}",
-    insert: '\\,',
-    aside: 'thin space<br>³⧸₁₈ em'
-  }, {
-    latex: "\\unicode{\"203A}\\:\\unicode{\"2039}",
-    insert: '\\:',
-    aside: 'medium space<br>⁴⧸₁₈ em'
-  }, {
-    latex: "\\unicode{\"203A}\\;\\unicode{\"2039}",
-    insert: '\\;',
-    aside: 'thick space<br>⁵⧸₁₈ em'
-  }, {
-    latex: "\\unicode{\"203A}\\ \\unicode{\"2039}",
-    insert: '\\ ',
-    aside: '⅓ em'
-  }, {
-    latex: "\\unicode{\"203A}\\enspace\\unicode{\"2039}",
-    insert: '\\enspace',
-    aside: '½ em'
-  }, {
-    latex: "\\unicode{\"203A}\\quad\\unicode{\"2039}",
-    insert: '\\quad',
-    aside: '1 em'
-  }, {
-    latex: "\\unicode{\"203A}\\qquad\\unicode{\"2039}",
-    insert: '\\qquad',
-    aside: '2 em'
-  }],
-  // @todo could also delete to end
-  'delete': [{
-    label: '<span class="warning"><svg><use xlink:href="#svg-trash" /></svg></span>',
-    command: '"deleteAll"'
-  }],
-  // @todo Tab: could turn on speech, visible keyboard...
-  '->|': []
-};
-var ALT_KEYS = {};
-var LAYERS = {
-  'math': "\n        <div class='rows'>\n            <ul>\n                <li class='keycap tex' data-alt-keys='x-var'><i>x</i></li>\n                <li class='keycap tex' data-alt-keys='n-var'><i>n</i></li>\n                <li class='separator w5'></li>\n                <row name='numpad-1'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-key='ee' data-alt-keys='ee'>e</li>\n                <li class='keycap tex' data-key='ii' data-alt-keys='ii'>i</li>\n                <li class='keycap tex' data-latex='\\pi' data-alt-keys='numeric-pi'></li>\n            </ul>\n            <ul>\n                <li class='keycap tex' data-key='<' data-alt-keys='<'>&lt;</li>\n                <li class='keycap tex' data-key='>' data-alt-keys='>'>&gt;</li>\n                <li class='separator w5'></li>\n                <row name='numpad-2'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='x2' data-insert='#@^{2}'><span><i>x</i>&thinsp;\xB2</span></li>\n                <li class='keycap tex' data-alt-keys='^' data-insert='#@^{#?}'><span><i>x</i><sup>&thinsp;<small>&#x2b1a;</small></sup></span></li>\n                <li class='keycap tex' data-alt-keys='sqrt' data-insert='\\sqrt{#0}' data-latex='\\sqrt{#0}'></li>\n            </ul>\n            <ul>\n                <li class='keycap tex' data-alt-keys='(' >(</li>\n                <li class='keycap tex' data-alt-keys=')' >)</li>\n                <li class='separator w5'></li>\n                <row name='numpad-3'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex small' data-alt-keys='int' data-latex='\\int_0^\\infty'><span></span></li>\n                <li class='keycap tex' data-latex='\\forall' data-alt-keys='logic' ></li>\n                <li class='action font-glyph bottom right' data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'>&#x232b;</li></ul>\n            </ul>\n            <ul>\n                <li class='keycap' data-alt-keys='foreground-color' data-command='[\"applyStyle\",{\"color\":\"#cc2428\"}]'><span style='border-radius: 50%;width:22px;height:22px; border: 3px solid #cc2428; box-sizing: border-box'></span></li>\n                <li class='keycap' data-alt-keys='background-color' data-command='[\"applyStyle\",{\"backgroundColor\":\"#fff590\"}]'><span style='border-radius: 50%;width:22px;height:22px; background:#fff590; box-sizing: border-box'></span></li>\n                <li class='separator w5'></li>\n                <row name='numpad-4'/>\n                <li class='separator w5'></li>\n                <arrows/>\n            </ul>\n        </div>\n    ",
-  'lower-roman': "\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <row name='lower-1' shift-layer='upper-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <row name='lower-2'  shift-layer='upper-roman''/>\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <row name='lower-3'  shift-layer='upper-roman''/>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols'>&infin;\u2260</li>\n                <li class='keycap' data-alt-keys=','>,</li>\n                <li class='keycap w50' data-key=' ' data-alt-keys='space'>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
-  'upper-roman': "\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <row name='upper-1'  shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <row name='upper-2' shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <row name='upper-3' shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols'>&infin;\u2260</li>\n                <li class='keycap' data-alt-keys='.'>;</li>\n                <li class='keycap w50' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
-  'symbols': "\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\lbrace '>{</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rbrace '>}</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='set' data-insert='\\in '>&#x2208;</li>\n                <li class='keycap tex' data-alt-keys='!set' data-insert='\\notin '>&#x2209;</li>\n                <li class='keycap tex' data-insert='\\Re '>&#x211c;<aside>Real</aside></li>\n                <li class='keycap tex' data-insert='\\Im '>&#x2111;<aside>Imaginary</aside></li>\n                <li class='keycap w15' data-insert='\\ulcorner#0\\urcorner '><span><sup>&#x250c;</sup><span><span style='color:#ddd'>o</span><sup>&#x2510;</sup></span><aside>ceil</aside></li>\n                <li class='keycap tex' data-alt-keys='nabla' data-insert='\\nabla '>&#x2207;<aside>nabla</aside></li>\n                <li class='keycap tex' data-alt-keys='infinity' data-insert='\\infty '>&#x221e;</li>\n\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\lbrack '>[</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rbrack '>]</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='subset' data-insert='\\subset '>&#x2282;</li>\n                <li class='keycap tex' data-alt-keys='supset' data-insert='\\supset '>&#x2283;</li>\n                <li class='keycap tex' data-key='!' data-alt-keys='!'>!<aside>factorial</aside></li>\n                <li class='keycap' data-insert='^{\\prime} '><span><sup><span><span style='color:#ddd'>o</span>&#x2032</sup></span><aside>prime</aside></li>\n                <li class='keycap w15' data-insert='\\llcorner#0\\lrcorner '><span><sub>&#x2514;</sub><span style='color:#ddd'>o</span><sub>&#x2518;</sub></span><aside>floor</aside></li>\n                <li class='keycap tex' data-insert='\\partial '>&#x2202;<aside>partial<br>derivative</aside></li>\n                <li class='keycap tex' data-insert='\\emptyset '>&#x2205;<aside>empty set</aside></li>\n\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\langle '>&#x27e8;</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rangle '>&#x27e9;</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-insert='\\subseteq '>&#x2286;</li>\n                <li class='keycap tex' data-insert='\\supseteq '>&#x2287;</li>\n                <li class='keycap tex' data-alt-keys='accents' data-insert='\\vec{#@}' data-latex='\\vec{#?}' data-aside='vector'></li>\n                <li class='keycap tex' data-alt-keys='accents' data-insert='\\bar{#@}' data-latex='\\bar{#?}' data-aside='bar'></li>\n                <li class='keycap tex' data-alt-keys='absnorm' data-insert='\\lvert #@ \\rvert ' data-latex='\\lvert #? \\rvert' data-aside='abs'></li>\n                <li class='keycap tex' data-insert='\\ast '>&#x2217;<aside>asterisk</aside></li>\n\n                <li class='action font-glyph bottom right w15'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='lower-roman'>abc</li>\n                <li class='keycap tex' data-insert='\\cdot '>&#x22c5;<aside>centered dot</aside></li>\n                <li class='keycap tex' data-insert='\\colon '>:<aside>colon</aside></li>\n                <li class='keycap tex' data-insert='\\circ '>&#x2218;<aside>circle</aside></li>\n                <li class='keycap tex' data-insert='\\approx '>&#x2248;<aside>approx.</aside></li>\n                <li class='keycap tex' data-insert='\\ne '>&#x2260;</li>\n                <li class='keycap tex' data-insert='\\pm '>&#x00b1;</li>\n                <arrows/>\n            </ul>\n        </div>",
-  'lower-greek': "\n        <div class='rows'>\n            <ul><li class='keycap tex' data-insert='\\varphi '><i>&#x03c6;</i><aside>phi var.</aside></li>\n                <li class='keycap tex' data-insert='\\varsigma '><i>&#x03c2;</i><aside>sigma var.</aside></li>\n                <li class='keycap tex' data-insert='\\epsilon '><i>&#x03f5;</i></li>\n                <li class='keycap tex' data-insert='\\rho '><i>&rho;</i></li>\n                <li class='keycap tex' data-insert='\\tau '><i>&tau;</i></li>\n                <li class='keycap tex' data-insert='\\upsilon '><i>&upsilon;</i></li>\n                <li class='keycap tex' data-insert='\\theta '><i>&theta;</i></li>\n                <li class='keycap tex' data-insert='\\iota '><i>&iota;</i></li>\n                <li class='keycap tex' data-insert='\\omicron '>&omicron;</i></li>\n                <li class='keycap tex' data-insert='\\pi '><i>&pi;</i></li>\n            </ul>\n            <ul><li class='keycap tex' data-insert='\\alpha ' data-shifted='&Alpha;' data-shifted-command='[\"insert\",\"{\\\\char\\\"391}\"]'><i>&alpha;</i></li>\n                <li class='keycap tex' data-insert='\\sigma '><i>&sigma;</i></li>\n                <li class='keycap tex' data-insert='\\delta '><i>&delta;</i></li>\n                <li class='keycap tex' data-insert='\\phi '><i>&#x03d5;</i></i></li>\n                <li class='keycap tex' data-insert='\\gamma '><i>&gamma;</i></li>\n                <li class='keycap tex' data-insert='\\eta '><i>&eta;</i></li>\n                <li class='keycap tex' data-insert='\\xi '><i>&xi;</i></li>\n                <li class='keycap tex' data-insert='\\kappa '><i>&kappa;</i></li>\n                <li class='keycap tex' data-insert='\\lambda '><i>&lambda;</i></li>\n            </ul>\n            <ul><li class='shift modifier font-glyph bottom left w15 layer-switch' data-layer='upper-greek'>&#x21e7;</li>\n                <li class='keycap tex' data-insert='\\zeta '><i>&zeta;</i></li>\n                <li class='keycap tex' data-insert='\\chi '><i>&chi;</i></li>\n                <li class='keycap tex' data-insert='\\psi '><i>&psi;</i></li>\n                <li class='keycap tex' data-insert='\\omega '><i>&omega;</i></li>\n                <li class='keycap tex' data-insert='\\beta '><i>&beta;</i></li>\n                <li class='keycap tex' data-insert='\\nu '><i>&nu;</i></li>\n                <li class='keycap tex' data-insert='\\mu '><i>&mu;</i></li>\n                <li class='action font-glyph bottom right w15'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <li class='keycap ' data-key=' '>&nbsp;</li>\n                <li class='keycap'>,</li>\n                <li class='keycap tex' data-insert='\\varepsilon '><i>&#x03b5;</i><aside>epsilon var.</aside></li>\n                <li class='keycap tex' data-insert='\\vartheta '><i>&#x03d1;</i><aside>theta var.</aside></li>\n                <li class='keycap tex' data-insert='\\varkappa '><i>&#x3f0;</i><aside>kappa var.</aside></li>\n                <li class='keycap tex' data-insert='\\varpi '><i>&#x03d6;<aside>pi var.</aside></i></li>\n                <li class='keycap tex' data-insert='\\varrho '><i>&#x03f1;</i><aside>rho var.</aside></li>\n                <arrows/>\n            </ul>\n        </div>",
-  'upper-greek': "\n        <div class='rows'>\n            <ul><li class='keycap tex' data-insert='\\Phi '>&Phi;<aside>phi</aside></li>\n                <li class='keycap tex' data-insert='\\Sigma '>&Sigma;<aside>sigma</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"0190}'>&#x0190;<aside>epsilon</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A1}'>&#x3A1;<aside>rho</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A4}'>&#x3A4;<aside>tau</aside></li>\n                <li class='keycap tex' data-insert='\\Upsilon '>&Upsilon;<aside>upsilon</aside></li>\n                <li class='keycap tex' data-insert='\\Theta '>&Theta;<aside>theta</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"399}'>&Iota;<aside>iota</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"39F}'>&#x039F;<aside>omicron</aside></li>\n                <li class='keycap tex' data-insert='\\Pi '>&Pi;<aside>pi</aside></li></ul>\n            <ul><li class='keycap tex' data-insert='{\\char\"391}'>&#x391;<aside>alpha</aside></li>\n                <li class='keycap tex' data-insert='\\Sigma '>&Sigma;<aside>sigma</aside></li>\n                <li class='keycap tex' data-insert='\\Delta '>&Delta;<aside>delta</aside></li>\n                <li class='keycap tex' data-insert='\\Phi '>&#x03a6;<aside>phi</aside></li>\n                <li class='keycap tex' data-insert='\\Gamma '>&Gamma;<aside>gamma</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"397}'>&Eta;<aside>eta</aside></li>\n                <li class='keycap tex' data-insert='\\Xi '>&Xi;<aside>xi</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"39A}'>&Kappa;<aside>kappa</aside></li>\n                <li class='keycap tex' data-insert='\\Lambda '>&Lambda;<aside>lambda</aside></li></ul>\n            <ul><li class='shift modifier font-glyph bottom left selected w15 layer-switch' data-layer='lower-greek'>&#x21e7;</li>\n                <li class='keycap tex' data-insert='{\\char\"396}'>&Zeta;<aside>zeta</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A7}'>&Chi;<aside>chi</aside></li>\n                <li class='keycap tex' data-insert='\\Psi '>&Psi;<aside>psi</aside></li>\n                <li class='keycap tex' data-insert='\\Omega '>&Omega;<aside>omega</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"392}'>&Beta;<aside>beta</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"39D}'>&Nu;<aside>nu</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"39C}'>&Mu;<aside>mu</aside></li>\n                <li class='action font-glyph bottom right w15' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'>&#x232b;</li></ul>\n            <ul>\n                <li class='separator w10'>&nbsp;</li>\n                <li class='keycap'>.</li>\n                <li class='keycap w50' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
-  'lower-command': "\n        <div class='rows'>\n            <ul><row name='lower-1' class='tt' shift-layer='upper-command'/></ul>\n            <ul><row name='lower-2' class='tt' shift-layer='upper-command'/></ul>\n            <ul><row name='lower-3' class='tt' shift-layer='upper-command'/></ul>\n            <ul>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols-command'>01#</li>\n                <li class='keycap tt' data-shifted='[' data-shifted-command='[\"insertAndUnshiftKeyboardLayer\", \"[\"]'>{</li>\n                <li class='keycap tt' data-shifted=']' data-shifted-command='[\"insertAndUnshiftKeyboardLayer\", \"]\"]'>}</li>\n                <li class='keycap tt' data-shifted='(' data-shifted-command='[\"insertAndUnshiftKeyboardLayer\", \"(\"]'>^</li>\n                <li class='keycap tt' data-shifted=')' data-shifted-command='[\"insertAndUnshiftKeyboardLayer\", \")\"]'>_</li>\n                <li class='keycap w20' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
-  'upper-command': "\n        <div class='rows'>\n            <ul><row name='upper-1' class='tt' shift-layer='lower-command'/></ul>\n            <ul><row name='upper-2' class='tt' shift-layer='lower-command'/></ul>\n            <ul><row name='upper-3' class='tt' shift-layer='lower-command'/></ul>\n            <ul>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols-command'01#</li>\n                <li class='keycap tt'>[</li>\n                <li class='keycap tt'>]</li>\n                <li class='keycap tt'>(</li>\n                <li class='keycap tt'>)</li>\n                <li class='keycap w20' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
-  'symbols-command': "\n        <div class='rows'>\n            <ul><li class='keycap tt'>1</li><li class='keycap tt'>2</li><li class='keycap tt'>3</li><li class='keycap tt'>4</li><li class='keycap tt'>5</li><li class='keycap tt'>6</li><li class='keycap tt'>7</li><li class='keycap tt'>8</li><li class='keycap tt'>9</li><li class='keycap tt'>0</li></ul>\n            <ul><li class='keycap tt'>!</li><li class='keycap tt'>@</li><li class='keycap tt'>#</li><li class='keycap tt'>$</li><li class='keycap tt'>%</li><li class='keycap tt'>^</li><li class='keycap tt'>&</li><li class='keycap tt'>*</li><li class='keycap tt'>+</li><li class='keycap tt'>=</li></ul>\n            <ul>\n                <li class='keycap tt'>\\</li>\n                <li class='keycap tt'>|</li>\n                <li class='keycap tt'>/</li>\n                <li class='keycap tt'>`</li>\n                <li class='keycap tt'>;</li>\n                <li class='keycap tt'>:</li>\n                <li class='keycap tt'>?</li>\n                <li class='keycap tt'>'</li>\n                <li class='keycap tt'>\"</li>\n                <li class='action font-glyph bottom right'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='lower-command'>abc</li>\n                <li class='keycap tt'>&lt;</li>\n                <li class='keycap tt'>&gt;</li>\n                <li class='keycap tt'>~</li>\n                <li class='keycap tt'>,</li>\n                <li class='keycap tt'>.</li>\n                <li class='keycap' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
-  'functions': "\n        <div class='rows'>\n            <ul><li class='separator'></li>\n                <li class='fnbutton' data-insert='\\sin'></li>\n                <li class='fnbutton' data-insert='\\sin^{-1}'></li>\n                <li class='fnbutton' data-insert='\\ln'></li>\n                <li class='fnbutton' data-insert='\\exponentialE^{#?}'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{lcm}(#?)' data-latex='\\operatorname{lcm}()'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{ceil}(#?)' data-latex='\\operatorname{ceil}()'></li>\n                <li class='bigfnbutton' data-insert='\\lim_{n\\to\\infty}'></li>\n                <li class='bigfnbutton' data-insert='\\int'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{abs}(#?)' data-latex='\\operatorname{abs}()'></li>\n            </ul>\n            <ul><li class='separator'></li>\n                <li class='fnbutton' data-insert='\\cos'></li>\n                <li class='fnbutton' data-insert='\\cos^{-1}'></li>\n                <li class='fnbutton' data-insert='\\ln_{10}'></li>\n                <li class='fnbutton' data-insert='10^{#?}'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{gcd}(#?)' data-latex='\\operatorname{gcd}()'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{floor}(#?)' data-latex='\\operatorname{floor}()'></li>\n                <li class='bigfnbutton' data-insert='\\sum_{n\\mathop=0}^{\\infty}'></li>\n                <li class='bigfnbutton' data-insert='\\int_{0}^{\\infty}'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{sign}(#?)' data-latex='\\operatorname{sign}()'></li>\n            </ul>\n            <ul><li class='separator'></li>\n                <li class='fnbutton' data-insert='\\tan'></li>\n                <li class='fnbutton' data-insert='\\tan^{-1}'></li>\n                <li class='fnbutton' data-insert='\\log_{#?}'></li>\n                <li class='fnbutton' data-insert='\\sqrt[#?]{#0}'></li>\n                <li class='bigfnbutton' data-insert='#0 \\mod' data-latex='\\mod'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{round}(#?) ' data-latex='\\operatorname{round}()'></li>\n                <li class='bigfnbutton' data-insert='\\prod_{n\\mathop=0}^{\\infty}' data-latex='{\\tiny \\prod_{n=0}^{\\infty}}'></li>\n                <li class='bigfnbutton' data-insert='\\frac{\\differentialD #0}{\\differentialD x}'></li>\n                <li class='action font-glyph bottom right' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'>&#x232b;</li></ul>\n            <ul><li class='separator'></li>\n                <li class='fnbutton'>(</li>\n                <li class='fnbutton'>)</li>\n                <li class='fnbutton' data-insert='^{#?} ' data-latex='x^{#?} '></li>\n                <li class='fnbutton' data-insert='_{#?} ' data-latex='x_{#?} '></li>\n                <li class='keycap w20 ' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
-  'style': "\n        <div class='rows'>\n            <ul>\n                <li class='keycap' data-alt-keys='foreground-color' data-command='[\"applyStyle\",{\"color\":\"#cc2428\"}]'><span style='border-radius: 50%;width:22px;height:22px; border: 3px solid #cc2428'></span></li>\n                <li class='keycap' data-alt-keys='background-color' data-command='[\"applyStyle\",{\"backgroundColor\":\"#fff590\"}]'><span style='border-radius: 50%;width:22px;height:22px; background:#fff590'></span></li>\n                <li class='separator w5'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"size\":\"size3\"}]' data-latex='\\scriptsize\\text{small}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"size\":\"size5\"}]' data-latex='\\scriptsize\\text{normal}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"size\":\"size9\"}]' data-latex='\\huge\\text{big}'></li>\n                <li class='separator w5'></li>\n                <li class='keycap' data-latex='\\langle' data-command='[\"insert\", \"\\\\langle\", {\"smartFence\":true}]'></li>\n            </ul>\n            <ul>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"l\"}]' data-latex='\\fontseries{l}\\text{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"m\"}]' data-latex='\\fontseries{m}\\text{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"b\"}]' data-latex='\\fontseries{b}\\text{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"bx\"}]' data-latex='\\fontseries{bx}\\text{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"sb\"}]' data-latex='\\fontseries{sb}\\text{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"c\"}]' data-latex='\\fontseries{c}\\text{Ab}'></li>\n            </ul>\n            <ul>\n                <li class='keycap' data-command='[\"applyStyle\",{\"shape\":\"up\"}]' data-latex='\\textup{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"shape\":\"it\"}]' data-latex='\\textit{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"shape\":\"sl\"}]' data-latex='\\textsl{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"shape\":\"sc\"}]' data-latex='\\textsc{Ab}'></li>\n                <li class='separator w5'></li>\n                <li class='keycap' data-insert='\\emph{#?} ' data-latex='\\text{\\emph{emph}}'></li>\n            </ul>\n            <ul>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"cmr\"}]' data-latex='\\textrm{Az}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"cmtt\"}]' data-latex='\\texttt{Az}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"cmss\"}]' data-latex='\\textsf{Az}'></li>\n\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"bb\"}]'  data-latex='\\mathbb{AZ}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"scr\"}]'  data-latex='\\mathscr{AZ}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"cal\"}]' data-latex='\\mathcal{A1}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"frak\"}]' data-latex='\\mathfrak{Az}'></li>\n            </ul>\n        </div>"
-};
-
-function latexToMarkup(latex, arg, mf) {
-  // Since we don't have preceding atoms, we'll interpret #@ as a placeholder
-  latex = latex.replace(/(^|[^\\])#@/g, '$1#?');
-
-  var parse = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', arg, mf.config.macros);
-
-  var spans = _mathAtom.default.decompose({
-    mathstyle: 'displaystyle',
-    macros: mf.config.macros
-  }, parse);
-
-  var base = _span.default.makeSpan(spans, 'ML__base');
-
-  var topStrut = _span.default.makeSpan('', 'ML__strut');
-
-  topStrut.setStyle('height', base.height, 'em');
-
-  var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom');
-
-  bottomStrut.setStyle('height', base.height + base.depth, 'em');
-  bottomStrut.setStyle('vertical-align', -base.depth, 'em');
-
-  var wrapper = _span.default.makeSpan([topStrut, bottomStrut, base], 'ML__mathlive');
-
-  return wrapper.toMarkup();
-}
-/**
- * Return a markup string for the keyboard toolbar for the specified layer.
- * @private
- */
-
-
-function makeKeyboardToolbar(mf, keyboardIDs, currentKeyboard) {
-  // The left hand side of the toolbar has a list of all the available keyboards
-  var result = "<div class='left'>";
-  var keyboardList = keyboardIDs.replace(/\s+/g, ' ').split(' ');
-
-  if (keyboardList.length > 1) {
-    var keyboards = Object.assign({}, KEYBOARDS, mf.config.customVirtualKeyboards || {});
-    var _iteratorNormalCompletion = true;
-    var _didIteratorError = false;
-    var _iteratorError = undefined;
-
-    try {
-      for (var _iterator = keyboardList[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-        var keyboard = _step.value;
-
-        if (!keyboards[keyboard]) {
-          console.error('Unknown virtual keyboard "' + keyboard + '"');
-          break;
-        }
-
-        result += '<div class=\'';
-
-        if (keyboard === currentKeyboard) {
-          result += 'selected ';
-        } else {
-          if (keyboards[keyboard].command) {
-            result += 'action ';
-          } else {
-            result += 'layer-switch ';
-          }
-        }
-
-        result += (keyboards[keyboard].classes || '') + "'";
-
-        if (keyboards[keyboard].tooltip) {
-          result += "data-tooltip='" + (0, _l10n.l10n)(keyboards[keyboard].tooltip) + "' ";
-          result += "data-placement='top' data-delay='1s'";
-        }
-
-        if (keyboard !== currentKeyboard) {
-          if (keyboards[keyboard].command) {
-            result += "data-command='\"" + keyboards[keyboard].command + "\"'";
-          }
-
-          if (keyboards[keyboard].layer) {
-            result += "data-layer='" + keyboards[keyboard].layer + "'";
-          }
-        }
-
-        result += '>' + keyboards[keyboard].label + '</div>';
-      }
-    } catch (err) {
-      _didIteratorError = true;
-      _iteratorError = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion && _iterator.return != null) {
-          _iterator.return();
-        }
-      } finally {
-        if (_didIteratorError) {
-          throw _iteratorError;
-        }
-      }
-    }
-  }
-
-  result += '</div>'; // The right hand side of the toolbar, with the copy/undo/redo commands
-
-  result += "\n        <div class='right'>\n            <div class='action'\n                data-command='\"copyToClipboard\"'\n                data-tooltip='".concat((0, _l10n.l10n)('tooltip.copy to clipboard'), "' data-placement='top' data-delay='1s'>\n                <svg><use xlink:href='#svg-copy' /></svg>\n            </div>\n            <div class='action disabled'\n                data-command='\"undo\"'\n                data-tooltip='").concat((0, _l10n.l10n)('tooltip.undo'), "' data-placement='top' data-delay='1s'>\n                <svg><use xlink:href='#svg-undo' /></svg>\n            </div>\n            <div class='action disabled'\n                data-command='\"redo\"'\n                data-tooltip='").concat((0, _l10n.l10n)('tooltip.redo'), "' data-placement='top' data-delay='1s'>\n                <svg><use xlink:href='#svg-redo' /></svg>\n            </div>\n        </div>\n    ");
-  return "<div class='keyboard-toolbar' role='toolbar'>" + result + "</div>";
-}
-
-function makeKeycap(mf, elList, chainedCommand) {
-  for (var i = 0; i < elList.length; ++i) {
-    var el = elList[i]; // Display
-
-    if (el.getAttribute('data-latex')) {
-      el.innerHTML = latexToMarkup(el.getAttribute('data-latex').replace(/&quot;/g, '"'), {
-        '?': '{\\color{#555}{\\tiny \\char"2B1A}}'
-      }, mf);
-    } else if (el.innerHTML === '' && el.getAttribute('data-insert')) {
-      el.innerHTML = latexToMarkup(el.getAttribute('data-insert').replace(/&quot;/g, '"'), {
-        '?': '{\\color{#555}{\\tiny \\char"2B1A}}'
-      }, mf);
-    } else if (el.getAttribute('data-content')) {
-      el.innerHTML = el.getAttribute('data-content').replace(/&quot;/g, '"');
-    }
-
-    if (el.getAttribute('data-aside')) {
-      el.innerHTML += '<aside>' + el.getAttribute('data-aside').replace(/&quot;/g, '"') + '</aside>';
-    }
-
-    if (el.getAttribute('data-classes')) {
-      el.classList.add(el.getAttribute('data-classes'));
-    }
-
-    var key = el.getAttribute('data-insert');
-    if (key) key = key.replace(/&quot;/g, '"');
-
-    if (key && SHIFTED_KEYS[key]) {
-      el.setAttribute('data-shifted', SHIFTED_KEYS[key].label);
-      el.setAttribute('data-shifted-command', JSON.stringify(['insertAndUnshiftKeyboardLayer', SHIFTED_KEYS[key].insert]));
-    } // Commands
-
-
-    var handlers = void 0;
-
-    if (el.getAttribute('data-command')) {
-      handlers = JSON.parse(el.getAttribute('data-command'));
-    } else if (el.getAttribute('data-insert')) {
-      handlers = ['insert', el.getAttribute('data-insert'), {
-        focus: true,
-        feedback: true,
-        mode: 'math',
-        format: 'auto',
-        resetStyle: true
-      }];
-    } else if (el.getAttribute('data-latex')) {
-      handlers = ['insert', el.getAttribute('data-latex'), {
-        focus: true,
-        feedback: true,
-        mode: 'math',
-        format: 'auto',
-        resetStyle: true
-      }];
-    } else {
-      handlers = ['typedText', el.getAttribute('data-key') || el.textContent, {
-        focus: true,
-        feedback: true,
-        simulateKeystroke: true
-      }];
-    }
-
-    if (chainedCommand) {
-      handlers = [chainedCommand, handlers];
-    }
-
-    if (el.getAttribute('data-alt-keys')) {
-      var altKeys = ALT_KEYS[el.getAttribute('data-alt-keys')];
-
-      if (altKeys) {
-        handlers = {
-          default: handlers,
-          pressAndHoldStart: ['showAlternateKeys', el.getAttribute('data-alt-keys'), altKeys],
-          pressAndHoldEnd: 'hideAlternateKeys'
-        };
-      } else {
-        console.warn('Unknown alt key set: "' + el.getAttribute('data-alt-keys'));
-      }
-    }
-
-    mf._attachButtonHandlers(el, handlers);
-  }
-}
-/**
- * Expand the shortcut tags (e.g. <row>) inside a layer.
- * @param {object} mf
- * @param {string} layer
- * @private
- */
-
-
-function expandLayerMarkup(mf, layer) {
-  var ROWS = {
-    // First row should be 10 key wide
-    // Second row should be 10 key wide
-    // Third row should be 8.5 key wide
-    // One row should have ^ (shift key) which is 1.5 key wide
-    // One row should have ~ (delete key) which is .5 or 1.5 key wide
-    'qwerty': {
-      'lower-1': 'qwertyuiop',
-      'lower-2': ' asdfghjkl ',
-      'lower-3': '^zxcvbnm~',
-      'upper-1': 'QWERTYUIOP',
-      'upper-2': ' ASDFGHJKL ',
-      'upper-3': '^ZXCVBNM~',
-      'numpad-1': '789/',
-      'numpad-2': '456*',
-      'numpad-3': '123-',
-      'numpad-4': '0.=+'
-    },
-    'azerty': {
-      'lower-1': 'azertyuiop',
-      'lower-2': 'qsdfghjklm',
-      'lower-3': '^ wxcvbn ~',
-      'upper-1': 'AZERTYUIOP',
-      'upper-2': 'QSDFGHJKLM',
-      'upper-3': '^ WXCVBN ~'
-    },
-    'qwertz': {
-      'lower-1': 'qwertzuiop',
-      'lower-2': ' asdfghjkl ',
-      'lower-3': '^yxcvbnm~',
-      'upper-1': 'QWERTZUIOP',
-      'upper-2': ' ASDFGHJKL',
-      'upper-3': '^YXCVBNM~'
-    },
-    'dvorak': {
-      'lower-1': '^  pyfgcrl ',
-      'lower-2': 'aoeuidhtns',
-      'lower-3': 'qjkxbmwvz~',
-      'upper-1': '^  PYFGCRL ',
-      'upper-2': 'AOEUIDHTNS',
-      'upper-3': 'QJKXBMWVZ~'
-    },
-    'colemak': {
-      'lower-1': ' qwfpgjluy ',
-      'lower-2': 'arstdhneio',
-      'lower-3': '^zxcvbkm~',
-      'upper-1': ' QWFPGNLUY ',
-      'upper-2': 'ARSTDHNEIO',
-      'upper-3': '^ZXCVBKM~'
-    }
-  };
-  var layout = ROWS[mf.config.virtualKeyboardLayout] ? ROWS[mf.config.virtualKeyboardLayout] : ROWS['qwerty'];
-  var result = layer;
-  var row;
-  result = result.replace(/<arrows\/>/g, "\n        <li class='action' data-command='[\"performWithFeedback\",\"moveToPreviousChar\"]'\n            data-shifted='<svg><use xlink:href=\"#svg-angle-double-left\" /></svg>'\n            data-shifted-command='[\"performWithFeedback\",\"extendToPreviousChar\"]'>\n            <svg><use xlink:href='#svg-arrow-left' /></svg>\n        </li>\n        <li class='action' data-command='[\"performWithFeedback\",\"moveToNextChar\"]'\n            data-shifted='<svg><use xlink:href=\"#svg-angle-double-right\" /></svg>'\n            data-shifted-command='[\"performWithFeedback\",\"extendToNextChar\"]'>\n            <svg><use xlink:href='#svg-arrow-right' /></svg>\n        </li>\n        <li class='action' data-command='[\"performWithFeedback\",\"moveToNextPlaceholder\"]'>\n        <svg><use xlink:href='#svg-tab' /></svg></li>");
-  var m = result.match(/(<row\s+)(.*)((?:<\/row|\/)>)/);
-
-  while (m) {
-    row = '';
-    var attributesArray = m[2].match(/[a-zA-Z][a-zA-Z0-9-]*=(['"])(.*?)\1/g);
-    var attributes = {};
-    var _iteratorNormalCompletion2 = true;
-    var _didIteratorError2 = false;
-    var _iteratorError2 = undefined;
-
-    try {
-      for (var _iterator2 = attributesArray[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-        var attribute = _step2.value;
-        var m2 = attribute.match(/([a-zA-Z][a-zA-Z0-9-]*)=(['"])(.*?)\2/);
-        attributes[m2[1]] = m2[3];
-      }
-    } catch (err) {
-      _didIteratorError2 = true;
-      _iteratorError2 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-          _iterator2.return();
-        }
-      } finally {
-        if (_didIteratorError2) {
-          throw _iteratorError2;
-        }
-      }
-    }
-
-    var keys = layout[attributes['name']];
-    if (!keys) keys = ROWS['qwerty'][attributes['name']];
-
-    if (!keys) {
-      console.warn('Unknown roman keyboard row: ' + attributes['name']);
-    } else {
-      var _iteratorNormalCompletion3 = true;
-      var _didIteratorError3 = false;
-      var _iteratorError3 = undefined;
-
-      try {
-        for (var _iterator3 = keys[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-          var c = _step3.value;
-          var cls = attributes['class'] || '';
-          if (cls) cls = ' ' + cls;
-
-          if (c === '~') {
-            row += "<li class='action font-glyph bottom right ";
-            row += keys.length - (keys.match(/ /g) || []).length / 2 === 10 ? 'w10' : 'w15';
-            row += "' data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                        data-shifted-command='\"deleteAll\"'\n                        data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                        >&#x232b;</li>";
-          } else if (c === ' ') {
-            // Separator
-            row += "<li class='separator w5'></li>";
-          } else if (c === '^') {
-            // Shift key
-            row += "<li class='shift modifier font-glyph bottom left w15 layer-switch' data-layer='" + attributes['shift-layer'] + "'>&#x21e7;</li>";
-          } else if (c === '/') {
-            row += "<li class='keycap" + cls + "' data-alt-keys='/' data-insert='\\frac{#0}{#?}'>&divide;</li>";
-          } else if (c === '*') {
-            row += "<li class='keycap" + cls + "' data-alt-keys='*' data-insert='\\times '>&times;</li>";
-          } else if (c === '-') {
-            row += "<li class='keycap" + cls + "' data-alt-keys='*' data-key='-' data-alt-keys='-'>&#x2212;</li>";
-          } else if (/tt/.test(cls)) {
-            row += "<li class='keycap" + cls + "' data-alt-keys='" + c + "'" + " data-command='[\"typedText\",\"" + c + "\",{\"commandMode\":true, \"focus\":true, \"feedback\":true}]'" + ">" + c + "</li>";
-          } else {
-            row += "<li class='keycap" + cls + "' data-alt-keys='" + c + "'>" + c + "</li>";
-          }
-        }
-      } catch (err) {
-        _didIteratorError3 = true;
-        _iteratorError3 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
-            _iterator3.return();
-          }
-        } finally {
-          if (_didIteratorError3) {
-            throw _iteratorError3;
-          }
-        }
-      }
-    }
-
-    result = result.replace(new RegExp(m[1] + m[2] + m[3]), row);
-    m = result.match(/(<row\s+)(.*)((?:<\/row|\/)>)/);
-  }
-
-  return result;
-}
-/**
- * Construct a virtual keyboard element based on the config options in the
- * mathfield and an optional theme.
- * @param {object} mf
- * @param {string} theme
- * @result {} A DOM element
- */
-
-
-function make(mf, theme) {
-  var svgIcons = "<svg xmlns=\"http://www.w3.org/2000/svg\" style=\"display: none;\">\n\n            <symbol id=\"svg-command\" viewBox=\"0 0 640 512\">\n                <path d=\"M34.495 36.465l211.051 211.05c4.686 4.686 4.686 12.284 0 16.971L34.495 475.535c-4.686 4.686-12.284 4.686-16.97 0l-7.071-7.07c-4.686-4.686-4.686-12.284 0-16.971L205.947 256 10.454 60.506c-4.686-4.686-4.686-12.284 0-16.971l7.071-7.07c4.686-4.687 12.284-4.687 16.97 0zM640 468v-10c0-6.627-5.373-12-12-12H300c-6.627 0-12 5.373-12 12v10c0 6.627 5.373 12 12 12h328c6.627 0 12-5.373 12-12z\"/>\n            </symbol>\n\n            <symbol id=\"svg-undo\" viewBox=\"0 0 512 512\">\n                <path d=\"M20 8h10c6.627 0 12 5.373 12 12v110.625C85.196 57.047 165.239 7.715 256.793 8.001 393.18 8.428 504.213 120.009 504 256.396 503.786 393.181 392.834 504 256 504c-63.926 0-122.202-24.187-166.178-63.908-5.113-4.618-5.354-12.561-.482-17.433l7.069-7.069c4.503-4.503 11.749-4.714 16.482-.454C150.782 449.238 200.935 470 256 470c117.744 0 214-95.331 214-214 0-117.744-95.331-214-214-214-82.862 0-154.737 47.077-190.289 116H180c6.627 0 12 5.373 12 12v10c0 6.627-5.373 12-12 12H20c-6.627 0-12-5.373-12-12V20c0-6.627 5.373-12 12-12z\"/>\n            </symbol>\n            <symbol id=\"svg-redo\" viewBox=\"0 0 512 512\">\n                <path d=\"M492 8h-10c-6.627 0-12 5.373-12 12v110.625C426.804 57.047 346.761 7.715 255.207 8.001 118.82 8.428 7.787 120.009 8 256.396 8.214 393.181 119.166 504 256 504c63.926 0 122.202-24.187 166.178-63.908 5.113-4.618 5.354-12.561.482-17.433l-7.069-7.069c-4.503-4.503-11.749-4.714-16.482-.454C361.218 449.238 311.065 470 256 470c-117.744 0-214-95.331-214-214 0-117.744 95.331-214 214-214 82.862 0 154.737 47.077 190.289 116H332c-6.627 0-12 5.373-12 12v10c0 6.627 5.373 12 12 12h160c6.627 0 12-5.373 12-12V20c0-6.627-5.373-12-12-12z\"/>\n            </symbol>\n            <symbol id=\"svg-arrow-left\" viewBox=\"0 0 192 512\">\n                <path d=\"M25.1 247.5l117.8-116c4.7-4.7 12.3-4.7 17 0l7.1 7.1c4.7 4.7 4.7 12.3 0 17L64.7 256l102.2 100.4c4.7 4.7 4.7 12.3 0 17l-7.1 7.1c-4.7 4.7-12.3 4.7-17 0L25 264.5c-4.6-4.7-4.6-12.3.1-17z\"/>\n            </symbol>\n            <symbol id=\"svg-arrow-right\" viewBox=\"0 0 192 512\">\n                    <path d=\"M166.9 264.5l-117.8 116c-4.7 4.7-12.3 4.7-17 0l-7.1-7.1c-4.7-4.7-4.7-12.3 0-17L127.3 256 25.1 155.6c-4.7-4.7-4.7-12.3 0-17l7.1-7.1c4.7-4.7 12.3-4.7 17 0l117.8 116c4.6 4.7 4.6 12.3-.1 17z\"/>\n            </symbol>\n            <symbol id=\"svg-tab\" viewBox=\"0 0 448 512\">\n                    <path d=\"M32 217.1c0-8.8 7.2-16 16-16h144v-93.9c0-7.1 8.6-10.7 13.6-5.7l143.5 143.1c6.3 6.3 6.3 16.4 0 22.7L205.6 410.4c-5 5-13.6 1.5-13.6-5.7v-93.9H48c-8.8 0-16-7.2-16-16v-77.7m-32 0v77.7c0 26.5 21.5 48 48 48h112v61.9c0 35.5 43 53.5 68.2 28.3l143.6-143c18.8-18.8 18.8-49.2 0-68L228.2 78.9c-25.1-25.1-68.2-7.3-68.2 28.3v61.9H48c-26.5 0-48 21.6-48 48zM436 64h-8c-6.6 0-12 5.4-12 12v360c0 6.6 5.4 12 12 12h8c6.6 0 12-5.4 12-12V76c0-6.6-5.4-12-12-12z\"/>\n            </symbol>\n            <symbol id=\"svg-copy\" viewBox=\"0 0 448 512\">\n                <path d=\"M433.941 65.941l-51.882-51.882A48 48 0 0 0 348.118 0H176c-26.51 0-48 21.49-48 48v48H48c-26.51 0-48 21.49-48 48v320c0 26.51 21.49 48 48 48h224c26.51 0 48-21.49 48-48v-48h80c26.51 0 48-21.49 48-48V99.882a48 48 0 0 0-14.059-33.941zM352 32.491a15.88 15.88 0 0 1 7.431 4.195l51.882 51.883A15.885 15.885 0 0 1 415.508 96H352V32.491zM288 464c0 8.822-7.178 16-16 16H48c-8.822 0-16-7.178-16-16V144c0-8.822 7.178-16 16-16h80v240c0 26.51 21.49 48 48 48h112v48zm128-96c0 8.822-7.178 16-16 16H176c-8.822 0-16-7.178-16-16V48c0-8.822 7.178-16 16-16h144v72c0 13.2 10.8 24 24 24h72v240z\"/>\n            </symbol>\n            <symbol id=\"svg-angle-double-right\" viewBox=\"0 0 320 512\">\n                <path d=\"M166.9 264.5l-117.8 116c-4.7 4.7-12.3 4.7-17 0l-7.1-7.1c-4.7-4.7-4.7-12.3 0-17L127.3 256 25.1 155.6c-4.7-4.7-4.7-12.3 0-17l7.1-7.1c4.7-4.7 12.3-4.7 17 0l117.8 116c4.6 4.7 4.6 12.3-.1 17zm128-17l-117.8-116c-4.7-4.7-12.3-4.7-17 0l-7.1 7.1c-4.7 4.7-4.7 12.3 0 17L255.3 256 153.1 356.4c-4.7 4.7-4.7 12.3 0 17l7.1 7.1c4.7 4.7 12.3 4.7 17 0l117.8-116c4.6-4.7 4.6-12.3-.1-17z\"/>\n            </symbol>\n            <symbol id=\"svg-angle-double-left\" viewBox=\"0 0 320 512\">\n                <path d=\"M153.1 247.5l117.8-116c4.7-4.7 12.3-4.7 17 0l7.1 7.1c4.7 4.7 4.7 12.3 0 17L192.7 256l102.2 100.4c4.7 4.7 4.7 12.3 0 17l-7.1 7.1c-4.7 4.7-12.3 4.7-17 0L153 264.5c-4.6-4.7-4.6-12.3.1-17zm-128 17l117.8 116c4.7 4.7 12.3 4.7 17 0l7.1-7.1c4.7-4.7 4.7-12.3 0-17L64.7 256l102.2-100.4c4.7-4.7 4.7-12.3 0-17l-7.1-7.1c-4.7-4.7-12.3-4.7-17 0L25 247.5c-4.6 4.7-4.6 12.3.1 17z\"/>\n            </symbol>\n            <symbol id=\"svg-trash\" viewBox=\"0 0 448 512\">\n                <path d=\"M336 64l-33.6-44.8C293.3 7.1 279.1 0 264 0h-80c-15.1 0-29.3 7.1-38.4 19.2L112 64H24C10.7 64 0 74.7 0 88v2c0 3.3 2.7 6 6 6h26v368c0 26.5 21.5 48 48 48h288c26.5 0 48-21.5 48-48V96h26c3.3 0 6-2.7 6-6v-2c0-13.3-10.7-24-24-24h-88zM184 32h80c5 0 9.8 2.4 12.8 6.4L296 64H152l19.2-25.6c3-4 7.8-6.4 12.8-6.4zm200 432c0 8.8-7.2 16-16 16H80c-8.8 0-16-7.2-16-16V96h320v368zm-176-44V156c0-6.6 5.4-12 12-12h8c6.6 0 12 5.4 12 12v264c0 6.6-5.4 12-12 12h-8c-6.6 0-12-5.4-12-12zm-80 0V156c0-6.6 5.4-12 12-12h8c6.6 0 12 5.4 12 12v264c0 6.6-5.4 12-12 12h-8c-6.6 0-12-5.4-12-12zm160 0V156c0-6.6 5.4-12 12-12h8c6.6 0 12 5.4 12 12v264c0 6.6-5.4 12-12 12h-8c-6.6 0-12-5.4-12-12z\"/>\n            </symbol>\n        </svg>\n        "; // <symbol id="svg-wikipedia" viewBox="0 0 640 512">
-  //         <path d="M640 51.2l-.3 12.2c-28.1.8-45 15.8-55.8 40.3-25 57.8-103.3 240-155.3 358.6H415l-81.9-193.1c-32.5 63.6-68.3 130-99.2 193.1-.3.3-15 0-15-.3C172 352.3 122.8 243.4 75.8 133.4 64.4 106.7 26.4 63.4.2 63.7c0-3.1-.3-10-.3-14.2h161.9v13.9c-19.2 1.1-52.8 13.3-43.3 34.2 21.9 49.7 103.6 240.3 125.6 288.6 15-29.7 57.8-109.2 75.3-142.8-13.9-28.3-58.6-133.9-72.8-160-9.7-17.8-36.1-19.4-55.8-19.7V49.8l142.5.3v13.1c-19.4.6-38.1 7.8-29.4 26.1 18.9 40 30.6 68.1 48.1 104.7 5.6-10.8 34.7-69.4 48.1-100.8 8.9-20.6-3.9-28.6-38.6-29.4.3-3.6 0-10.3.3-13.6 44.4-.3 111.1-.3 123.1-.6v13.6c-22.5.8-45.8 12.8-58.1 31.7l-59.2 122.8c6.4 16.1 63.3 142.8 69.2 156.7L559.2 91.8c-8.6-23.1-36.4-28.1-47.2-28.3V49.6l127.8 1.1.2.5z"/>
-  // </symbol>
-  // <symbol id="svg-link" viewBox="0 0 512 512">
-  //         <path d="M301.148 394.702l-79.2 79.19c-50.778 50.799-133.037 50.824-183.84 0-50.799-50.778-50.824-133.037 0-183.84l79.19-79.2a132.833 132.833 0 0 1 3.532-3.403c7.55-7.005 19.795-2.004 20.208 8.286.193 4.807.598 9.607 1.216 14.384.481 3.717-.746 7.447-3.397 10.096-16.48 16.469-75.142 75.128-75.3 75.286-36.738 36.759-36.731 96.188 0 132.94 36.759 36.738 96.188 36.731 132.94 0l79.2-79.2.36-.36c36.301-36.672 36.14-96.07-.37-132.58-8.214-8.214-17.577-14.58-27.585-19.109-4.566-2.066-7.426-6.667-7.134-11.67a62.197 62.197 0 0 1 2.826-15.259c2.103-6.601 9.531-9.961 15.919-7.28 15.073 6.324 29.187 15.62 41.435 27.868 50.688 50.689 50.679 133.17 0 183.851zm-90.296-93.554c12.248 12.248 26.362 21.544 41.435 27.868 6.388 2.68 13.816-.68 15.919-7.28a62.197 62.197 0 0 0 2.826-15.259c.292-5.003-2.569-9.604-7.134-11.67-10.008-4.528-19.371-10.894-27.585-19.109-36.51-36.51-36.671-95.908-.37-132.58l.36-.36 79.2-79.2c36.752-36.731 96.181-36.738 132.94 0 36.731 36.752 36.738 96.181 0 132.94-.157.157-58.819 58.817-75.3 75.286-2.651 2.65-3.878 6.379-3.397 10.096a163.156 163.156 0 0 1 1.216 14.384c.413 10.291 12.659 15.291 20.208 8.286a131.324 131.324 0 0 0 3.532-3.403l79.19-79.2c50.824-50.803 50.799-133.062 0-183.84-50.802-50.824-133.062-50.799-183.84 0l-79.2 79.19c-50.679 50.682-50.688 133.163 0 183.851z"/>
-  // </symbol>
-  //     <symbol id="svg-external-link" viewBox="0 0 448 512">
-  //     <path d="M400 32H48C21.49 32 0 53.49 0 80v352c0 26.51 21.49 48 48 48h352c26.51 0 48-21.49 48-48V80c0-26.51-21.49-48-48-48zm16 400c0 8.822-7.178 16-16 16H48c-8.822 0-16-7.178-16-16V80c0-8.822 7.178-16 16-16h352c8.822 0 16 7.178 16 16v352zM99.515 374.828c-4.686-4.686-4.686-12.284 0-16.971l195.15-195.15-.707-.707-89.958.342c-6.627 0-12-5.373-12-12v-9.999c0-6.628 5.372-12 12-12L340 128c6.627 0 12 5.372 12 12l-.343 136c0 6.627-5.373 12-12 12h-9.999c-6.627 0-12-5.373-12-12l.342-89.958-.707-.707-195.15 195.15c-4.686 4.686-12.284 4.686-16.971 0l-5.657-5.657z"/>
-  // </symbol>
-  // <symbol id="svg-external-link" viewBox="0 0 512 512">
-  //     <path d="M256 40c118.621 0 216 96.075 216 216 0 119.291-96.61 216-216 216-119.244 0-216-96.562-216-216 0-119.203 96.602-216 216-216m0-32C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm-36 344h12V232h-12c-6.627 0-12-5.373-12-12v-8c0-6.627 5.373-12 12-12h48c6.627 0 12 5.373 12 12v140h12c6.627 0 12 5.373 12 12v8c0 6.627-5.373 12-12 12h-72c-6.627 0-12-5.373-12-12v-8c0-6.627 5.373-12 12-12zm36-240c-17.673 0-32 14.327-32 32s14.327 32 32 32 32-14.327 32-32-14.327-32-32-32z"/>
-  // </symbol>
-
-  var markup = svgIcons; // Auto-populate the ALT_KEYS table
-
-  ALT_KEYS_BASE['foreground-color'] = [];
-  var _iteratorNormalCompletion4 = true;
-  var _didIteratorError4 = false;
-  var _iteratorError4 = undefined;
-
-  try {
-    for (var _iterator4 = _color2.default.LINE_COLORS[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
-      var color = _step4.value;
-      ALT_KEYS_BASE['foreground-color'].push({
-        classes: 'small-button',
-        content: '<span style="border-radius:50%;width:32px;height:32px; box-sizing: border-box; border: 3px solid ' + color + '"></span>',
-        command: '["applyStyle",{"color":"' + color + '"}]'
-      });
-    }
-  } catch (err) {
-    _didIteratorError4 = true;
-    _iteratorError4 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
-        _iterator4.return();
-      }
-    } finally {
-      if (_didIteratorError4) {
-        throw _iteratorError4;
-      }
-    }
-  }
-
-  ALT_KEYS_BASE['background-color'] = [];
-  var _iteratorNormalCompletion5 = true;
-  var _didIteratorError5 = false;
-  var _iteratorError5 = undefined;
-
-  try {
-    for (var _iterator5 = _color2.default.AREA_COLORS[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
-      var _color = _step5.value;
-      ALT_KEYS_BASE['background-color'].push({
-        classes: 'small-button',
-        content: '<span style="border-radius:50%;width:32px;height:32px; background:' + _color + '"></span>',
-        command: '["applyStyle",{"backgroundColor":"' + _color + '"}]'
-      });
-    }
-  } catch (err) {
-    _didIteratorError5 = true;
-    _iteratorError5 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
-        _iterator5.return();
-      }
-    } finally {
-      if (_didIteratorError5) {
-        throw _iteratorError5;
-      }
-    }
-  }
-
-  ALT_KEYS = {};
-  ALT_KEYS = Object.assign({}, ALT_KEYS_BASE);
-
-  for (var key in ALT_KEYS) {
-    if (ALT_KEYS.hasOwnProperty(key)) {
-      ALT_KEYS[key] = ALT_KEYS[key].slice();
-    }
-  }
-
-  var upperAlpha = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
-  var lowerAlpha = 'abcdefghijklmnopqrstuvwxyz';
-  var digits = '0123456789';
-
-  for (var i = 0; i < 26; i++) {
-    var _key = upperAlpha[i];
-    if (!ALT_KEYS[_key]) ALT_KEYS[_key] = [];
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathbb{' + _key + '}',
-      aside: 'blackboard',
-      insert: '\\mathbb{' + _key + '}'
-    });
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathbf{' + _key + '}',
-      aside: 'bold',
-      insert: '\\mathbf{' + _key + '}'
-    });
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathsf{' + _key + '}',
-      aside: 'sans',
-      insert: '\\mathsf{' + _key + '}'
-    });
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathtt{' + _key + '}',
-      aside: 'monospace',
-      insert: '\\mathtt{' + _key + '}'
-    });
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathcal{' + _key + '}',
-      aside: 'script',
-      insert: '\\mathcal{' + _key + '}'
-    });
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathfrak{' + _key + '}',
-      aside: 'fraktur',
-      insert: '\\mathfrak{' + _key + '}'
-    });
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathbb{' + lowerAlpha[i] + '}',
-      aside: 'blackboard',
-      insert: '\\mathbb{' + lowerAlpha[i] + '}'
-    });
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathbf{' + lowerAlpha[i] + '}',
-      aside: 'bold',
-      insert: '\\mathbf{' + lowerAlpha[i] + '}'
-    });
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathsf{' + lowerAlpha[i] + '}',
-      aside: 'sans',
-      insert: '\\mathsf{' + lowerAlpha[i] + '}'
-    });
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathcal{' + lowerAlpha[i] + '}',
-      aside: 'script',
-      insert: '\\mathcal{' + lowerAlpha[i] + '}'
-    });
-
-    ALT_KEYS[_key].unshift({
-      latex: '\\mathfrak{' + lowerAlpha[i] + '}',
-      aside: 'fraktur',
-      insert: '\\mathfrak{' + lowerAlpha[i] + '}'
-    });
-  }
-
-  for (var _i = 0; _i <= 26; _i++) {
-    var _key2 = lowerAlpha[_i];
-    if (!ALT_KEYS[_key2]) ALT_KEYS[_key2] = [];
-
-    ALT_KEYS[_key2].unshift({
-      latex: '\\mathsf{' + _key2 + '}',
-      aside: 'sans',
-      insert: '\\mathbb{' + _key2 + '}'
-    });
-
-    ALT_KEYS[_key2].unshift({
-      latex: '\\mathbf{' + _key2 + '}',
-      aside: 'bold',
-      insert: '\\mathbf{' + _key2 + '}'
-    });
-
-    ALT_KEYS[_key2].unshift({
-      latex: '\\mathtt{' + _key2 + '}',
-      aside: 'monospace',
-      insert: '\\mathtt{' + _key2 + '}'
-    });
-
-    ALT_KEYS[_key2].unshift({
-      latex: '\\mathfrak{' + _key2 + '}',
-      aside: 'fraktur',
-      insert: '\\mathfrak{' + _key2 + '}'
-    });
-  }
-
-  for (var _i2 = 0; _i2 < 10; _i2++) {
-    var _key3 = digits[_i2];
-    if (!ALT_KEYS[_key3]) ALT_KEYS[_key3] = []; // The mathbb font does not appear to include digits,
-    // although it's supposed to.
-    // ALT_KEYS[key].push({
-    //         latex: '\\underset{\\textsf{\\footnotesize blackboard}}{\\mathbb{' + key + '}}',
-    //         insert: '\\mathbb{' + key + '}}'});
-
-    ALT_KEYS[_key3].unshift({
-      latex: '\\mathbf{' + _key3 + '}',
-      aside: 'bold',
-      insert: '\\mathbf{' + _key3 + '}'
-    });
-
-    ALT_KEYS[_key3].unshift({
-      latex: '\\mathsf{' + _key3 + '}',
-      aside: 'sans',
-      insert: '\\mathsf{' + _key3 + '}'
-    });
-
-    ALT_KEYS[_key3].unshift({
-      latex: '\\mathtt{' + _key3 + '}',
-      aside: 'monospace',
-      insert: '\\mathtt{' + _key3 + '}'
-    });
-
-    ALT_KEYS[_key3].unshift({
-      latex: '\\mathcal{' + _key3 + '}',
-      aside: 'script',
-      insert: '\\mathcal{' + _key3 + '}'
-    });
-
-    ALT_KEYS[_key3].unshift({
-      latex: '\\mathfrak{' + _key3 + '}',
-      aside: 'fraktur',
-      insert: '\\mathfrak{' + _key3 + '}'
-    });
-  }
-
-  var keyboardIDs = mf.config.virtualKeyboards;
-
-  if (!keyboardIDs) {
-    keyboardIDs = 'all';
-  }
-
-  keyboardIDs = keyboardIDs.replace(/\ball\b/i, 'numeric roman greek functions command');
-  var layers = Object.assign({}, LAYERS, mf.config.customVirtualKeyboardLayers || {});
-  var keyboards = Object.assign({}, KEYBOARDS, mf.config.customVirtualKeyboards || {});
-  var keyboardList = keyboardIDs.replace(/\s+/g, ' ').split(' ');
-  var _iteratorNormalCompletion6 = true;
-  var _didIteratorError6 = false;
-  var _iteratorError6 = undefined;
-
-  try {
-    for (var _iterator6 = keyboardList[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
-      var keyboard = _step6.value;
-
-      if (!keyboards[keyboard]) {
-        console.error('Unknown virtual keyboard "' + keyboard + '"');
-        break;
-      } // Add the default layer to the list of layers,
-      // and make sure the list of layers is uniquified.
-
-
-      var keyboardLayers = keyboards[keyboard].layers || [];
-
-      if (keyboards[keyboard].layer) {
-        keyboardLayers.push(keyboards[keyboard].layer);
-      }
-
-      keyboardLayers = Array.from(new Set(keyboardLayers));
-      var _iteratorNormalCompletion7 = true;
-      var _didIteratorError7 = false;
-      var _iteratorError7 = undefined;
-
-      try {
-        for (var _iterator7 = keyboardLayers[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
-          var layer = _step7.value;
-
-          if (!layers[layer]) {
-            console.error('Unknown virtual keyboard layer: "' + layer + '"');
-            break;
-          }
-
-          if (_typeof(layers[layer]) === 'object') {
-            // Process JSON layer to web element based layer.
-            var tempLayer = "";
-
-            if (layers[layer].styles) {
-              tempLayer += "<style>".concat(layers[layer].styles, "</style>");
-            }
-
-            if (layers[layer].backdrop) {
-              tempLayer += "<div class='".concat(layers[layer].backdrop, "'>");
-            }
-
-            if (layers[layer].container) {
-              tempLayer += "<div class='".concat(layers[layer].container, "'>");
-            }
-
-            if (layers[layer].rows) {
-              tempLayer += "<div class='rows'>";
-              var _iteratorNormalCompletion8 = true;
-              var _didIteratorError8 = false;
-              var _iteratorError8 = undefined;
-
-              try {
-                for (var _iterator8 = layers[layer].rows[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
-                  var row = _step8.value;
-                  tempLayer += "<ul>";
-                  var _iteratorNormalCompletion9 = true;
-                  var _didIteratorError9 = false;
-                  var _iteratorError9 = undefined;
-
-                  try {
-                    for (var _iterator9 = row[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
-                      var col = _step9.value;
-                      tempLayer += "<li";
-
-                      if (col.class) {
-                        tempLayer += " class=\"".concat(col.class, "\"");
-                      }
-
-                      if (col.key) {
-                        tempLayer += " data-key=\"".concat(col.key, "\"");
-                      }
-
-                      if (col.command) {
-                        if (typeof col.command === 'string') {
-                          tempLayer += " data-command='\"".concat(col.command, "\"'");
-                        } else {
-                          tempLayer += " data-command='";
-                          tempLayer += JSON.stringify(col.command);
-                          tempLayer += "'";
-                        }
-                      }
-
-                      if (col.insert) {
-                        tempLayer += " data-insert=\"".concat(col.insert, "\"");
-                      }
-
-                      if (col.latex) {
-                        tempLayer += " data-latex=\"".concat(col.latex, "\"");
-                      }
-
-                      if (col.aside) {
-                        tempLayer += " data-aside=\"".concat(col.aside, "\"");
-                      }
-
-                      if (col.altKeys) {
-                        tempLayer += " data-alt-keys=\"".concat(col.altKeys, "\"");
-                      }
-
-                      if (col.shifted) {
-                        tempLayer += " data-shifted=\"".concat(col.shifted, "\"");
-                      }
-
-                      if (col.shiftedCommand) {
-                        tempLayer += " data-shifted-command=\"".concat(col.shiftedCommand, "\"");
-                      }
-
-                      tempLayer += ">".concat(col.label ? col.label : '', "</li>");
-                    }
-                  } catch (err) {
-                    _didIteratorError9 = true;
-                    _iteratorError9 = err;
-                  } finally {
-                    try {
-                      if (!_iteratorNormalCompletion9 && _iterator9.return != null) {
-                        _iterator9.return();
-                      }
-                    } finally {
-                      if (_didIteratorError9) {
-                        throw _iteratorError9;
-                      }
-                    }
-                  }
-
-                  tempLayer += "</ul>";
-                }
-              } catch (err) {
-                _didIteratorError8 = true;
-                _iteratorError8 = err;
-              } finally {
-                try {
-                  if (!_iteratorNormalCompletion8 && _iterator8.return != null) {
-                    _iterator8.return();
-                  }
-                } finally {
-                  if (_didIteratorError8) {
-                    throw _iteratorError8;
-                  }
-                }
-              }
-
-              tempLayer += "</div>";
-
-              if (layers[layer].container) {
-                tempLayer += "</div'>";
-              }
-
-              if (layers[layer].backdrop) {
-                tempLayer += "</div'>";
-              }
-            }
-
-            layers[layer] = tempLayer;
-          }
-
-          markup += "<div tabindex=\"-1\" class='keyboard-layer' id='" + layer + "'>";
-          markup += makeKeyboardToolbar(mf, keyboardIDs, keyboard);
-          var layerMarkup = typeof layers[layer] === 'function' ? layers[layer]() : layers[layer]; // A layer can contain 'shortcuts' (i.e. <row> tags) that need to
-          // be expanded
-
-          markup += expandLayerMarkup(mf, layerMarkup);
-          markup += '</div>';
-        }
-      } catch (err) {
-        _didIteratorError7 = true;
-        _iteratorError7 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
-            _iterator7.return();
-          }
-        } finally {
-          if (_didIteratorError7) {
-            throw _iteratorError7;
-          }
-        }
-      }
-    }
-  } catch (err) {
-    _didIteratorError6 = true;
-    _iteratorError6 = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
-        _iterator6.return();
-      }
-    } finally {
-      if (_didIteratorError6) {
-        throw _iteratorError6;
-      }
-    }
-  }
-
-  var result = document.createElement('div');
-  result.className = 'ML__keyboard';
-
-  if (theme) {
-    result.classList.add(theme);
-  } else if (mf.config.virtualKeyboardTheme) {
-    result.classList.add(mf.config.virtualKeyboardTheme);
-  } else if (/android|cros/i.test(navigator.userAgent)) {
-    result.classList.add('material');
-  }
-
-  result.innerHTML = markup; // Attach the element handlers
-
-  makeKeycap(mf, result.querySelectorAll('.keycap, .action, .fnbutton, .bigfnbutton'));
-  var elList = result.getElementsByClassName('layer-switch');
-
-  for (var _i3 = 0; _i3 < elList.length; ++_i3) {
-    if (elList[_i3].classList.contains('shift')) {
-      // This is a potential press-and-hold layer switch
-      mf._attachButtonHandlers(elList[_i3], {
-        // When the modifier is initially pressed, we will shift the labels
-        // (if available)
-        pressed: ['shiftKeyboardLayer', 'shift'],
-        // If the key is released before a delay, we switch to the target layer
-        default: ['switchKeyboardLayer', elList[_i3].getAttribute('data-layer')],
-        // If the key is released after a longer delay, we restore the
-        // shifted labels
-        pressAndHoldEnd: 'unshiftKeyboardLayer'
-      });
-    } else {
-      // This is a simple layer switch
-      mf._attachButtonHandlers(elList[_i3], {
-        default: ['switchKeyboardLayer', elList[_i3].getAttribute('data-layer')]
-      });
-    }
-  } // Select the first keyboard as the initial one.
-
-
-  var layerElements = result.getElementsByClassName('keyboard-layer');
-  Array.from(layerElements).forEach(function (x) {
-    x.addEventListener('mousedown', function (evt) {
-      evt.preventDefault();
-      evt.stopPropagation();
-    });
-    x.addEventListener('touchstart', function (evt) {
-      evt.preventDefault();
-      evt.stopPropagation();
-    });
-  });
-  layerElements[0].classList.add('is-visible'); // Listen to know when the mouse has been released without being
-  // captured to remove the alternate keys panel and the shifted state of the
-  // keyboard.
-
-  window.addEventListener('mouseup', function () {
-    mf.hideAlternateKeys_();
-    mf.unshiftKeyboardLayer_();
-  });
-  window.addEventListener('blur', function () {
-    mf.hideAlternateKeys_();
-    mf.unshiftKeyboardLayer_();
-  });
-  window.addEventListener('touchend', function () {
-    mf.hideAlternateKeys_();
-    mf.unshiftKeyboardLayer_();
-  });
-  window.addEventListener('touchcancel', function () {
-    mf.hideAlternateKeys_();
-    mf.unshiftKeyboardLayer_();
-  });
-  return result;
-}
-
-var _default = {
-  make: make,
-  makeKeycap: makeKeycap
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/l10n.js b/dist/editor/l10n.js
deleted file mode 100644
index a3cb97867..000000000
--- a/dist/editor/l10n.js
+++ /dev/null
@@ -1,243 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.l10n = l10n;
-exports.default = void 0;
-
-function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
-
-function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
-
-function l10n(s) {
-  var language = l10n.locale.substring(0, 2);
-  var result = ''; // Attempt to find a match for the current locale
-
-  if (l10n.strings[l10n.locale]) result = l10n.strings[l10n.locale][s]; // If none is found, attempt to find a match for the language
-
-  if (!result && l10n.strings[language]) result = l10n.strings[language][s]; // If none is found, try english
-
-  if (!result) result = l10n.strings['en'][s]; // If that didn't work, use the key...
-
-  if (!result) result = s;
-  return result;
-}
-
-l10n.plural = function (value, s, options) {
-  options = options || {};
-  options.type = options.type || 'cardinal';
-  var language = l10n.locale.substring(0, 2);
-  var rules = options.type === 'ordinal' ? l10n.ordinal : l10n.cardinal;
-  var rule = options.type === 'ordinal' ? l10n._ordinalPluralCategories.indexOf(rules.select(value)) : l10n._cardinalPluralCategories.indexOf(rules.select(value));
-  var result;
-  if (l10n.strings[l10n.locale]) result = l10n.strings[l10n.locale][s];
-  if (!result && l10n.strings[language]) result = l10n.strings[language][s];
-
-  if (!result) {
-    result = l10n.strings['en'][s];
-    if (!result) result = s;
-
-    if (options.type === 'ordinal') {
-      rule = l10n._ordinalPluralCategories.indexOf(l10n._ordinalEnglish.select(value));
-    } else {
-      rule = l10n._cardinalPluralCategories.indexOf(l10n._cardinalEnglish.select(value));
-    }
-  }
-
-  return result.split(';')[rule] || result.split(';')[0];
-};
-/**
- * Two forms for this function:
- * - merge(locale, strings)
- * Merge a dictionary of keys -> values for the specified locale
- * - merge(strings)
- * Merge a dictionary of locale code -> dictionary of keys -> values
- * 
- */
-
-
-l10n.merge = function (locale, strings) {
-  if (locale && strings) {
-    var savedLocale = l10n._locale;
-    l10n.locale = locale; // Load the necessary json file
-
-    l10n.strings[locale] = _objectSpread({}, l10n.strings[locale], strings);
-    l10n.locale = savedLocale;
-  } else if (locale && !strings) {
-    strings = locale;
-
-    for (var l in strings) {
-      if (strings.hasOwnProperty(l)) {
-        l10n.merge(l, strings[l]);
-      }
-    }
-  }
-}; // Add getter and setter for the _locale property of l10n
-
-
-Object.defineProperty(l10n, 'locale', {
-  set: function set(locale) {
-    l10n._locale = locale;
-    l10n._ordinal = null;
-    l10n._cardinal = null;
-  },
-  get: function get() {
-    // Use the browser defined language as the default language,
-    // "english" if not running in a browser (node.js)
-    if (!l10n._locale) {
-      // Use the setter, which will load the necessary .json files.
-      l10n._locale = typeof navigator === 'undefined' ? 'en' : navigator.language.slice(0, 5);
-    }
-
-    return l10n._locale;
-  }
-});
-Object.defineProperty(l10n, 'ordinal', {
-  get: function get() {
-    if (!l10n._ordinal) {
-      l10n._ordinalEnglish = new Intl.PluralRules('en', {
-        type: 'ordinal'
-      });
-      l10n._ordinalEnglishPluralCategories = l10n._ordinalEnglish.resolvedOptions().pluralCategories;
-      l10n._ordinal = new Intl.PluralRules(l10n.locale, {
-        type: 'ordinal'
-      });
-      l10n._ordinalPluralCategories = l10n._ordinal.resolvedOptions().pluralCategories; //    "zero", "one", "two", "few", "many" and "other"
-    }
-
-    return l10n._ordinal;
-  }
-});
-Object.defineProperty(l10n, 'cardinal', {
-  get: function get() {
-    if (!l10n._cardinal) {
-      l10n._cardinalEnglish = new Intl.PluralRules('en', {
-        type: 'cardinal'
-      });
-      l10n._cardinalEnglishPluralCategories = l10n._cardinalEnglish.resolvedOptions().pluralCategories;
-      l10n._cardinal = new Intl.PluralRules(l10n.locale, {
-        type: 'cardinal'
-      });
-      l10n._cardinaPluralCategories = l10n._ordinal.resolvedOptions().pluralCategories;
-    }
-
-    return l10n._cardinal;
-  }
-});
-l10n.strings = {
-  "en": {
-    "keyboard.tooltip.functions": "Functions",
-    "keyboard.tooltip.greek": "Greek Letters",
-    "keyboard.tooltip.command": "LaTeX Command Mode",
-    "keyboard.tooltip.numeric": "Numeric",
-    "keyboard.tooltip.roman": "Symbols and Roman Letters",
-    "tooltip.copy to clipboard": "Copy to Clipboard",
-    "tooltip.redo": "Redo",
-    "tooltip.toggle virtual keyboard": "Toggle Virtual Keyboard",
-    "tooltip.undo": "Undo"
-  },
-  "ar": {
-    "keyboard.tooltip.functions": "مهام",
-    "keyboard.tooltip.greek": "حروف يونانية",
-    "keyboard.tooltip.command": "حالة تلقي الأوامر اللاتك",
-    "keyboard.tooltip.numeric": "الرقمية",
-    "keyboard.tooltip.roman": "رموز الاحرف الرومانية",
-    "tooltip.copy to clipboard": "نسخ إلى الحافظة",
-    "tooltip.redo": "الإعادة",
-    "tooltip.toggle virtual keyboard": "تبديل لوحة المفاتيح الإفتراضية",
-    "tooltip.undo": "إلغاء"
-  },
-  "de": {
-    "keyboard.tooltip.functions": "Funktionen",
-    "keyboard.tooltip.greek": "Griechische Buchstaben",
-    "keyboard.tooltip.command": "LaTeX-Befehlsmodus",
-    "keyboard.tooltip.numeric": "Numerisch",
-    "keyboard.tooltip.roman": "Symbole und römische Buchstaben",
-    "tooltip.copy to clipboard": "In die Zwischenablage kopieren",
-    "tooltip.redo": "Wiederholen",
-    "tooltip.toggle virtual keyboard": "Virtuelle Tastatur umschalten",
-    "tooltip.undo": "Widerrufen"
-  },
-  "es": {
-    "keyboard.tooltip.functions": "Funciones",
-    "keyboard.tooltip.greek": "Letras griegas",
-    "keyboard.tooltip.command": "Modo Comando LaTeX",
-    "keyboard.tooltip.numeric": "Numérico",
-    "keyboard.tooltip.roman": "Símbolos y letras romanas",
-    "tooltip.copy to clipboard": "Copiar al portapapeles",
-    "tooltip.redo": "Rehacer",
-    "tooltip.toggle virtual keyboard": "Alternar teclado virtual",
-    "tooltip.undo": "Deshacer"
-  },
-  "fa": {
-    "keyboard.tooltip.functions": "توابع",
-    "keyboard.tooltip.greek": "حروف یونانی",
-    "keyboard.tooltip.command": "حالت دستور لاتک",
-    "keyboard.tooltip.numeric": "عددی",
-    "keyboard.tooltip.roman": "علائم و حروف لاتین",
-    "tooltip.copy to clipboard": "کپی به کلیپبورد",
-    "tooltip.redo": "بازگشت به بعد",
-    "tooltip.toggle virtual keyboard": "نمایش/نهفتن کیبورد مجازی",
-    "tooltip.undo": "بازگشت به قبل"
-  },
-  "fr": {
-    "keyboard.tooltip.functions": "Fonctions",
-    "keyboard.tooltip.greek": "Lettres grecques",
-    "keyboard.tooltip.command": "Mode de commandes LaTeX",
-    "keyboard.tooltip.numeric": "Numérique",
-    "keyboard.tooltip.roman": "Lettres et symboles romains",
-    "tooltip.copy to clipboard": "Copier dans le presse-papiers",
-    "tooltip.redo": "Rétablir",
-    "tooltip.toggle virtual keyboard": "Afficher/Masquer le clavier virtuel",
-    "tooltip.undo": "Annuler"
-  },
-  "it": {
-    "keyboard.tooltip.functions": "Funzioni",
-    "keyboard.tooltip.greek": "Lettere greche",
-    "keyboard.tooltip.command": "Modalità di comando LaTeX",
-    "keyboard.tooltip.numeric": "Numerico",
-    "keyboard.tooltip.roman": "Simboli e lettere romane",
-    "tooltip.copy to clipboard": "Copia negli appunti",
-    "tooltip.redo": "Rifare",
-    "tooltip.toggle virtual keyboard": "Attiva / disattiva la tastiera virtuale",
-    "tooltip.undo": "Disfare"
-  },
-  "ja": {
-    "keyboard.tooltip.functions": "関数",
-    "keyboard.tooltip.greek": "ギリシャ文字",
-    "keyboard.tooltip.command": "LaTeXコマンドモード",
-    "keyboard.tooltip.numeric": "数値",
-    "keyboard.tooltip.roman": "記号とローマ字",
-    "tooltip.copy to clipboard": "クリップボードにコピー",
-    "tooltip.redo": "やり直し",
-    "tooltip.toggle virtual keyboard": "仮想キーボードの切り替え",
-    "tooltip.undo": "元に戻す"
-  },
-  "pl": {
-    "keyboard.tooltip.functions": "Funkcje",
-    "keyboard.tooltip.greek": "Litery greckie",
-    "keyboard.tooltip.command": "Tryb poleceń LaTeX",
-    "keyboard.tooltip.numeric": "Numeryczne",
-    "keyboard.tooltip.roman": "Symbole i litery rzymskie",
-    "tooltip.copy to clipboard": "Kopiuj do Schowka",
-    "tooltip.redo": "Przywróć",
-    "tooltip.toggle virtual keyboard": "Przełącz wirtualną klawiaturę",
-    "tooltip.undo": "Cofnij"
-  },
-  "ru": {
-    "keyboard.tooltip.functions": "Функции",
-    "keyboard.tooltip.greek": "Греческие буквы",
-    "keyboard.tooltip.command": "Режим командной строки LaTeX",
-    "keyboard.tooltip.numeric": "числовой",
-    "keyboard.tooltip.roman": "Символы и римские буквы",
-    "tooltip.copy to clipboard": "Скопировать в буфер обмена",
-    "tooltip.redo": "переделывать",
-    "tooltip.toggle virtual keyboard": "Переключить виртуальную клавиатуру",
-    "tooltip.undo": "расстегивать"
-  }
-};
-var _default = {
-  l10n: l10n
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/outputASCIIMath.js b/dist/editor/outputASCIIMath.js
deleted file mode 100644
index 60fed5c47..000000000
--- a/dist/editor/outputASCIIMath.js
+++ /dev/null
@@ -1,284 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.toASCIIMath = toASCIIMath;
-exports.default = void 0;
-var SPECIAL_IDENTIFIERS = {
-  "\u2212": '-',
-  // MINUS SIGN
-  '-': '-',
-  '\\alpha': 'alpha',
-  '\\beta': 'beta',
-  '\\gamma': 'gamma',
-  '\\delta': 'delta',
-  '\\epsilon': 'epsilon',
-  '\\varepsilon': 'varepsilon',
-  '\\zeta': 'zeta',
-  '\\eta': 'eta',
-  '\\theta': 'theta',
-  '\\vartheta': 'vartheta',
-  '\\iota': 'iota',
-  '\\kappa': 'kappa',
-  '\\lambda': 'lambda',
-  '\\mu': 'mu',
-  '\\nu': 'nu',
-  '\\xi': 'xi',
-  '\\pi': 'pi',
-  '\\rho': 'rho',
-  '\\sigma': 'sigma',
-  '\\tau': 'tau',
-  "\\upsilon": 'upsilon',
-  '\\phi': 'phi',
-  '\\varphi': 'varphi',
-  '\\chi': 'chi',
-  '\\psi': 'psi',
-  '\\omega': 'omega',
-  '\\Gamma': 'Gamma',
-  '\\Delta': 'Delta',
-  '\\Theta': 'Theta',
-  '\\Lambda': 'Lambda',
-  '\\Xi': 'Xi',
-  '\\Pi': 'Pi',
-  '\\Sigma': 'Sigma',
-  '\\Phi': 'Phi',
-  '\\Psi': 'Psi',
-  '\\Omega': 'Omega'
-};
-var SPECIAL_OPERATORS = {
-  '\\pm': '+-',
-  '\\times': 'xx',
-  '\\colon': ':',
-  '\\vert': '|',
-  '\\Vert': '||',
-  '\\mid': '|',
-  '\\lbrace': '{',
-  '\\rbrace': '}',
-  '\\langle': '(:',
-  '\\rangle': ':)' // '\\lfloor': '\u230a',
-  // '\\rfloor': '\u230b',
-  // '\\lceil': '\u2308',
-  // '\\rceil': '\u2309',
-  // '\\vec': '&#x20d7;',
-  // '\\acute': '&#x00b4;',
-  // '\\grave': '&#x0060;',
-  // '\\dot': '&#x02d9;',
-  // '\\ddot': '&#x00a8;',
-  // '\\tilde': '&#x007e;',
-  // '\\bar': '&#x00af;',
-  // '\\breve': '&#x02d8;',
-  // '\\check': '&#x02c7;',
-  // '\\hat': '&#x005e;'
-
-};
-
-function toASCIIMath(atom, options) {
-  if (!atom) return '';
-
-  if (Array.isArray(atom)) {
-    var _result = '';
-    if (atom.length === 0) return '';
-    if (atom[0].type === 'first') atom.shift();
-
-    if (atom[0].mode === 'text') {
-      // Text mode... put it in (ASCII) quotes
-      var i = 0;
-      _result = '"';
-
-      while (atom[i] && atom[i].mode === 'text') {
-        _result += atom[i].body;
-        i++;
-      }
-
-      _result += '"' + toASCIIMath(atom.slice(i), options);
-    } else {
-      var _i = 0;
-
-      while (atom[_i] && atom[_i].mode === 'math') {
-        _result += toASCIIMath(atom[_i], options);
-        _i++;
-      }
-
-      _result += toASCIIMath(atom.slice(_i), options);
-    }
-
-    return _result.trim();
-  }
-
-  var result = '';
-  var command = atom.latex ? atom.latex.trim() : null;
-  var m;
-
-  switch (atom.type) {
-    case 'group':
-    case 'root':
-      result = toASCIIMath(atom.body, options);
-      break;
-
-    case 'array':
-      break;
-
-    case 'genfrac':
-      if (atom.leftDelim || atom.rightDelim) {
-        result += atom.leftDelim === '.' || !atom.leftDelim ? '{:' : atom.leftDelim;
-      }
-
-      if (atom.hasBarLine) {
-        result += '(';
-        result += toASCIIMath(atom.numer, options);
-        result += ')/(';
-        result += toASCIIMath(atom.denom, options);
-        result += ')';
-      } else {
-        // No bar line, i.e. \choose, etc...
-        result += '(' + toASCIIMath(atom.numer, options) + '),';
-        result += '(' + toASCIIMath(atom.denom, options) + ')';
-      }
-
-      if (atom.leftDelim || atom.rightDelim) {
-        result += atom.rightDelim === '.' || !atom.rightDelim ? '{:' : atom.rightDelim;
-      }
-
-      break;
-
-    case 'surd':
-      if (atom.index) {
-        result += 'root(' + toASCIIMath(atom.index, options) + ')(' + toASCIIMath(atom.body, options) + ')';
-      } else {
-        result += 'sqrt(' + toASCIIMath(atom.body, options) + ')';
-      }
-
-      break;
-
-    case 'leftright':
-      result += atom.leftDelim === '.' || !atom.leftDelim ? '{:' : atom.leftDelim;
-      result += toASCIIMath(atom.body, options);
-      result += atom.rightDelim === '.' || !atom.rightDelim ? '{:' : atom.rightDelim;
-      break;
-
-    case 'sizeddelim':
-    case 'delim':
-      // result += '<mo separator="true"' + makeID(atom.id, options) + '>' + (SPECIAL_OPERATORS[atom.delim] || atom.delim) + '</mo>';
-      break;
-
-    case 'accent':
-      break;
-
-    case 'line':
-    case 'overlap':
-      break;
-
-    case 'overunder':
-      break;
-
-    case 'mord':
-      // @todo, deal with some special identifiers: \alpha, etc...
-      result = SPECIAL_IDENTIFIERS[command] || command || (typeof atom.body === 'string' ? atom.body : '');
-      if (result[0] === '\\') result += '';
-      m = command ? command.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) : null;
-
-      if (m) {
-        // It's a \char command
-        result = String.fromCharCode(parseInt('0x' + m[1]));
-      } else if (result.length > 0 && result.charAt(0) === '\\') {
-        // atom is an identifier with no special handling. Use the
-        // Unicode value
-        if (typeof atom.body === 'string') {
-          result = atom.body.charAt(0);
-        } else {
-          result = atom.latex;
-        }
-      } // result = '<mi' + variant + makeID(atom.id, options) + '>' + xmlEscape(result) + '</mi>';
-
-
-      break;
-
-    case 'mbin':
-    case 'mrel':
-    case 'textord':
-    case 'minner':
-      if (command && SPECIAL_IDENTIFIERS[command]) {
-        // Some 'textord' are actually identifiers. Check them here.
-        result = SPECIAL_IDENTIFIERS[command];
-      } else if (command && SPECIAL_OPERATORS[command]) {
-        result = SPECIAL_OPERATORS[command];
-      } else {
-        result = atom.body;
-      }
-
-      break;
-
-    case 'mopen':
-    case 'mclose':
-      result += atom.body;
-      break;
-
-    case 'mpunct':
-      result = SPECIAL_OPERATORS[command] || command;
-      break;
-
-    case 'mop':
-      if (atom.body !== "\u200B") {
-        // Not ZERO-WIDTH
-        result = '';
-
-        if (command === '\\operatorname') {
-          result += atom.body;
-        } else {
-          result += atom.body || command;
-        }
-
-        result += ' ';
-      }
-
-      break;
-
-    case 'mathstyle':
-      break;
-
-    case 'box':
-      break;
-
-    case 'spacing':
-      break;
-
-    case 'enclose':
-      break;
-
-    case 'space':
-      result = ' ';
-      break;
-  } // Subscripts before superscripts (according to the ASCIIMath spec)
-
-
-  if (atom.subscript) {
-    result += '_';
-    var arg = toASCIIMath(atom.subscript, options);
-
-    if (arg.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(arg)) {
-      result += '(' + arg + ')';
-    } else {
-      result += arg;
-    }
-  }
-
-  if (atom.superscript) {
-    result += '^';
-
-    var _arg = toASCIIMath(atom.superscript, options);
-
-    if (_arg.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(_arg)) {
-      result += '(' + _arg + ')';
-    } else {
-      result += _arg;
-    }
-  }
-
-  return result;
-}
-
-var _default = {
-  toASCIIMath: toASCIIMath
-};
-exports.default = _default;
\ No newline at end of file
diff --git a/dist/mathlive.js b/dist/mathlive.js
index 4aa2cc905..1b80b1806 100644
--- a/dist/mathlive.js
+++ b/dist/mathlive.js
@@ -1,917 +1 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-var _lexer = _interopRequireDefault(require("./core/lexer.js"));
-
-var _mathAtom = _interopRequireDefault(require("./core/mathAtom.js"));
-
-var _parser = _interopRequireDefault(require("./core/parser.js"));
-
-var _span = _interopRequireDefault(require("./core/span.js"));
-
-var _definitions = _interopRequireDefault(require("./core/definitions.js"));
-
-var _editorMathfield = _interopRequireDefault(require("./editor/editor-mathfield.js"));
-
-var _autoRender = _interopRequireDefault(require("./addons/auto-render.js"));
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/**
- *
- * This modules exports the MathLive entry points.
- *
- * @module mathlive
- * @example
- * // To invoke the functions in this module, import the MathLive module. 
- * 
- * import MathLive from 'dist/mathlive.mjs';
- * 
- * const markup = MathLive.latexToMarkup('e^{i\\pi}+1=0');
- * 
- */
-
-/**
- * Convert a LaTeX string to a string of HTML markup.
- *
- * @param {string} text A string of valid LaTeX. It does not have to start
- * with a mode token such as `$$` or `\(`.
- *
- * @param {string} mathstyle If `'displaystyle'` the "display" mode of TeX
- * is used to typeset the formula, which is most appropriate for formulas that are
- * displayed in a standalone block. If `'textstyle'` is used, the "text" mode
- * of TeX is used, which is most appropriate when displaying math "inline"
- * with other text (on the same line).
- *
- * @param {string} [format='html'] For debugging purposes, this function
- * can also return a text representation of internal data structures
- * used to construct the markup. Valid values include `'mathlist'` and `'span'`
- *
- * @return {string}
- * @function module:mathlive#latexToMarkup
- */
-function toMarkup(text, mathstyle, format, macros) {
-  mathstyle = mathstyle || 'displaystyle';
-  console.assert(/displaystyle|textstyle|scriptstyle|scriptscriptstyle/.test(mathstyle), "Invalid style:", mathstyle); //
-  // 1. Tokenize the text
-  //
-
-  var tokens = _lexer.default.tokenize(text); //
-  // 2. Parse each token in the formula
-  //    Turn the list of tokens in the formula into
-  //    a tree of high-level MathAtom, e.g. 'genfrac'.
-  //
-
-
-  var mathlist = _parser.default.parseTokens(tokens, 'math', null, macros);
-
-  if (format === 'mathlist') return mathlist; //
-  // 3. Transform the math atoms into elementary spans
-  //    for example from genfrac to vlist.
-  //
-
-  var spans = _mathAtom.default.decompose({
-    mathstyle: mathstyle
-  }, mathlist); //
-  // 4. Simplify by coalescing adjacent nodes
-  //    for example, from <span>1</span><span>2</span>
-  //    to <span>12</span>
-  //
-
-
-  spans = _span.default.coalesce(spans);
-  if (format === 'span') return spans; //
-  // 5. Wrap the expression with struts
-  //
-
-  var base = _span.default.makeSpan(spans, 'ML__base');
-
-  var topStrut = _span.default.makeSpan('', 'ML__strut');
-
-  topStrut.setStyle('height', base.height, 'em');
-  var struts = [topStrut];
-
-  if (base.depth !== 0) {
-    var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom');
-
-    bottomStrut.setStyle('height', base.height + base.depth, 'em');
-    bottomStrut.setStyle('vertical-align', -base.depth, 'em');
-    struts.push(bottomStrut);
-  }
-
-  struts.push(base);
-
-  var wrapper = _span.default.makeSpan(struts, 'ML__mathlive'); //
-  // 6. Generate markup
-  //
-
-
-  return wrapper.toMarkup();
-}
-/**
- * Convert a DOM element into an editable math field.
- * 
- * After the DOM element has been created, the value `element.mathfield` will 
- * return a reference to the mathfield object. This value is also returned 
- * by `makeMathField`
- * 
- * @param {Element|string} element A DOM element, for example as obtained 
- * by `document.getElementById()`, or the ID of a DOM element as a string.
- * 
- * @param {Object<string, any>} [config={}] See {@tutorial CONFIG} for details.
- *
- *
- * @return {MathField}
- * 
- * Given the HTML markup:
- * ```html
- * <span id='equation'>$f(x)=sin(x)$</span>
- * ```
- * The following code will turn the span into an editable mathfield.
- * ```
- * import MathLive from 'dist/mathlive.mjs';
- * MathLive.makeMathField('equation');
- * ```
- * 
- * @function module:mathlive#makeMathField
- */
-
-
-function makeMathField(element, config) {
-  if (!_editorMathfield.default) {
-    throw Error('The MathField module is not loaded.');
-  }
-
-  config = config || {};
-  config.handleSpeak = config.handleSpeak || speak;
-  config.handleReadAloud = config.handleReadAloud || readAloud;
-  return new _editorMathfield.default.MathField(getElement(element), config);
-}
-/**
- * Convert a LaTeX string to a string of MathML markup.
- *
- * @param {string} latex A string of valid LaTeX. It does not have to start
- * with a mode token such as a `$$` or `\(`.
- * @param {object} options
- * @param {boolean} [options.generateID=false] - If true, add an `extid` attribute
- * to the MathML nodes with a value matching the `atomID`.
- * @return {string}
- * @function module:mathlive#latexToMathML
- */
-
-
-function toMathML(latex, options) {
-  if (!_mathAtom.default.toMathML) {
-    console.warn('The MathML module is not loaded.');
-    return '';
-  }
-
-  options = options || {};
-  options.macros = options.macros || {};
-  Object.assign(options.macros, _definitions.default.MACROS);
-
-  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, options.macros);
-
-  return _mathAtom.default.toMathML(mathlist, options);
-}
-/**
- * Convert a LaTeX string to an Abstract Syntax Tree
- *
- * **See:** {@tutorial MASTON}
- *
- * @param {string} latex A string of valid LaTeX. It does not have to start
- * with a mode token such as a `$$` or `\(`.
- *
- * @return {object} The Abstract Syntax Tree as a JavaScript object.
- * @function module:mathlive#latexToAST
- */
-
-
-function latexToAST(latex, options) {
-  if (!_mathAtom.default.toAST) {
-    console.warn('The AST module is not loaded.');
-    return {};
-  }
-
-  options = options || {};
-  options.macros = options.macros || {};
-  Object.assign(options.macros, _definitions.default.MACROS);
-
-  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, options.macros);
-
-  return _mathAtom.default.toAST(mathlist, options);
-}
-/**
- * Convert a LaTeX string to a textual representation ready to be spoken
- *
- * @param {string} latex A string of valid LaTeX. It does not have to start
- * with a mode token such as a `$$` or `\(`.
- * 
- * @param {Object.<string, any>} options -
- * 
- * @param {string} [options.textToSpeechRules='mathlive'] Specify which
- * set of text to speech rules to use. 
- * 
- * A value of `mathlive` indicates that
- * the simple rules built into MathLive should be used. A value of `sre`
- * indicates that the Speech Rule Engine from Volker Sorge should be used.
- * Note that SRE is not included or loaded by MathLive and for this option to
- * work SRE should be loaded separately.
- * 
- * @param {string} [options.textToSpeechMarkup=''] The markup syntax to use 
- * for the output of conversion to spoken text. 
- * 
- * Possible values are `ssml` for 
- * the SSML markup or `mac` for the MacOS markup (e.g. `[[ltr]]`)
- *
- * @param {Object.<string, any>} [options.textToSpeechRulesOptions={}] A set of 
- * key/value pairs that can be used to configure the speech rule engine. 
- * 
- * Which options are available depends on the speech rule engine in use. There 
- * are no options available with MathLive's built-in engine. The options for 
- * the SRE engine are documented [here]{@link:https://github.com/zorkow/speech-rule-engine}
- * @return {string} The spoken representation of the input LaTeX.
- * @example
- * console.log(MathLive.latexToSpeakableText('\\frac{1}{2}'));
- * // ➡︎'half'
- * @function module:mathlive#latexToSpeakableText
- */
-
-
-function latexToSpeakableText(latex, options) {
-  if (!_mathAtom.default.toSpeakableText) {
-    console.warn('The outputSpokenText module is not loaded.');
-    return "";
-  }
-
-  options = options || {};
-  options.macros = options.macros || {};
-  Object.assign(options.macros, _definitions.default.MACROS);
-
-  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, options.macros);
-
-  return _mathAtom.default.toSpeakableText(mathlist, options);
-}
-
-function removeHighlight(node) {
-  node.classList.remove('highlight');
-
-  if (node.children) {
-    Array.from(node.children).forEach(function (x) {
-      removeHighlight(x);
-    });
-  }
-}
-/**
- * Highlight the span corresponding to the specified atomID
- * This is used for TTS with synchronized highlighting (read aloud)
- *
- * @param {string} atomID
- *
- */
-
-
-function highlightAtomID(node, atomID) {
-  if (!atomID || node.dataset.atomId === atomID) {
-    node.classList.add('highlight');
-
-    if (node.children && node.children.length > 0) {
-      Array.from(node.children).forEach(function (x) {
-        highlightAtomID(x);
-      });
-    }
-  } else {
-    node.classList.remove('highlight');
-
-    if (node.children && node.children.length > 0) {
-      Array.from(node.children).forEach(function (x) {
-        highlightAtomID(x, atomID);
-      });
-    }
-  }
-}
-
-function speak(text, config) {
-  if (!config && window && window.mathlive) {
-    config = window.mathlive.config;
-  }
-
-  config = config || {};
-
-  if (!config.speechEngine || config.speechEngine === 'local') {
-    // On ChromeOS: chrome.accessibilityFeatures.spokenFeedback
-    // See also https://developer.chrome.com/apps/tts
-    var utterance = new SpeechSynthesisUtterance(text);
-
-    if (window) {
-      window.speechSynthesis.speak(utterance);
-    } else {
-      console.log('Speak: ', text);
-    }
-  } else if (config.speechEngine === 'amazon') {
-    if (!window || !window.AWS) {
-      console.warn('AWS SDK not loaded. See https://www.npmjs.com/package/aws-sdk');
-    } else {
-      var polly = new window.AWS.Polly({
-        apiVersion: '2016-06-10'
-      });
-      var params = {
-        OutputFormat: 'mp3',
-        VoiceId: config.speechEngineVoice || 'Joanna',
-        // SampleRate: '16000',
-        Text: text,
-        TextType: 'ssml' // SpeechMarkTypes: ['ssml]'
-
-      };
-      polly.synthesizeSpeech(params, function (err, data) {
-        if (err) {
-          console.warn('polly.synthesizeSpeech() error:', err, err.stack);
-        } else {
-          if (data && data.AudioStream) {
-            var uInt8Array = new Uint8Array(data.AudioStream);
-            var blob = new Blob([uInt8Array.buffer], {
-              type: 'audio/mpeg'
-            });
-            var url = URL.createObjectURL(blob);
-            var audioElement = new Audio(url);
-            audioElement.play().catch(function (err) {
-              return console.log(err);
-            });
-          } else {
-            console.log('polly.synthesizeSpeech():' + data);
-          }
-        }
-      }); // Can call AWS.Request() on the result of synthesizeSpeech()
-    }
-  } else if (config.speechEngine === 'google') {
-    console.warn('The Google speech engine is not supported yet. Please come again.'); // @todo: implement support for Google Text-to-Speech API,
-    // using config.speechEngineToken, config.speechEngineVoice and
-    // config.speechEngineAudioConfig
-    // curl -H "Authorization: Bearer "$(gcloud auth application-default print-access-token) \
-    //   -H "Content-Type: application/json; charset=utf-8" \
-    //   --data "{
-    //     'input':{
-    //       'text':'Android is a mobile operating system developed by Google,
-    //          based on the Linux kernel and designed primarily for
-    //          touchscreen mobile devices such as smartphones and tablets.'
-    //     },
-    //     'voice':{
-    //       'languageCode':'en-gb',
-    //       'name':'en-GB-Standard-A',
-    //       'ssmlGender':'FEMALE'
-    //     },
-    //     'audioConfig':{
-    //       'audioEncoding':'MP3'
-    //     }
-    //   }" "https://texttospeech.googleapis.com/v1beta1/text:synthesize" > synthesize-text.txt
-  }
-}
-/**
- * "Read Aloud" is an asynchronous operation that reads the 
- * reading with synchronized highlighting
- * 
- * @param {DOMElement} element - The DOM element to highlight
- * @param {string} text - The text to speak
- * @param {object} config
- * @private
- * @function module:mathlive#readAloud
- */
-
-
-function readAloud(element, text, config) {
-  if (!window) {
-    return;
-  }
-
-  if (!config && window.mathlive) {
-    config = window.mathlive.config;
-  }
-
-  config = config || {};
-
-  if (config.speechEngine !== 'amazon') {
-    console.warn('Use Amazon TTS Engine for synchronized highlighting');
-    if (config.handleSpeak) config.handleSpeak(text);
-    return;
-  }
-
-  if (!window.AWS) {
-    console.warn('AWS SDK not loaded. See https://www.npmjs.com/package/aws-sdk');
-    return;
-  }
-
-  var polly = new window.AWS.Polly({
-    apiVersion: '2016-06-10'
-  });
-  var params = {
-    OutputFormat: 'json',
-    VoiceId: config.speechEngineVoice || 'Joanna',
-    Text: text,
-    TextType: 'ssml',
-    SpeechMarkTypes: ['ssml']
-  };
-  window.mathlive = window.mathlive || {};
-  window.mathlive.readAloudElement = element;
-  var status = config.onReadAloudStatus || window.mathlive.onReadAloudStatus; // Request the mark points
-
-  polly.synthesizeSpeech(params, function (err, data) {
-    if (err) {
-      console.warn('polly.synthesizeSpeech() error:', err, err.stack);
-    } else {
-      if (data && data.AudioStream) {
-        var response = new TextDecoder('utf-8').decode(new Uint8Array(data.AudioStream));
-        window.mathlive.readAloudMarks = response.split('\n').map(function (x) {
-          return x ? JSON.parse(x) : {};
-        });
-        window.mathlive.readAloudTokens = [];
-        var _iteratorNormalCompletion = true;
-        var _didIteratorError = false;
-        var _iteratorError = undefined;
-
-        try {
-          for (var _iterator = window.mathlive.readAloudMarks[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-            var mark = _step.value;
-
-            if (mark.value) {
-              window.mathlive.readAloudTokens.push(mark.value);
-            }
-          }
-        } catch (err) {
-          _didIteratorError = true;
-          _iteratorError = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion && _iterator.return != null) {
-              _iterator.return();
-            }
-          } finally {
-            if (_didIteratorError) {
-              throw _iteratorError;
-            }
-          }
-        }
-
-        window.mathlive.readAloudCurrentMark = ''; // Request the audio
-
-        params.OutputFormat = 'mp3';
-        params.SpeechMarkTypes = [];
-        polly.synthesizeSpeech(params, function (err, data) {
-          if (err) {
-            console.warn('polly.synthesizeSpeech(', text, ') error:', err, err.stack);
-          } else {
-            if (data && data.AudioStream) {
-              var uInt8Array = new Uint8Array(data.AudioStream);
-              var blob = new Blob([uInt8Array.buffer], {
-                type: 'audio/mpeg'
-              });
-              var url = URL.createObjectURL(blob);
-
-              if (!window.mathlive.readAloudAudio) {
-                window.mathlive.readAloudAudio = new Audio();
-                window.mathlive.readAloudAudio.addEventListener('ended', function () {
-                  if (status) status(window.mathlive.readAloudMathField, 'ended');
-
-                  if (window.mathlive.readAloudMathField) {
-                    window.mathlive.readAloudMathField._render();
-
-                    window.mathlive.readAloudElement = null;
-                    window.mathlive.readAloudMathField = null;
-                    window.mathlive.readAloudTokens = [];
-                    window.mathlive.readAloudMarks = [];
-                    window.mathlive.readAloudCurrentMark = '';
-                  } else {
-                    removeHighlight(window.mathlive.readAloudElement);
-                  }
-                });
-                window.mathlive.readAloudAudio.addEventListener('timeupdate', function () {
-                  var value = ''; // The target, the atom we're looking for, is the one matching the current audio
-                  // plus 100 ms. By anticipating it a little bit, it feels more natural, otherwise it
-                  // feels like the highlighting is trailing the audio.
-
-                  var target = window.mathlive.readAloudAudio.currentTime * 1000 + 100; // Find the smallest element which is bigger than the target time
-
-                  var _iteratorNormalCompletion2 = true;
-                  var _didIteratorError2 = false;
-                  var _iteratorError2 = undefined;
-
-                  try {
-                    for (var _iterator2 = window.mathlive.readAloudMarks[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-                      var mark = _step2.value;
-
-                      if (mark.time < target) {
-                        value = mark.value;
-                      }
-                    }
-                  } catch (err) {
-                    _didIteratorError2 = true;
-                    _iteratorError2 = err;
-                  } finally {
-                    try {
-                      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
-                        _iterator2.return();
-                      }
-                    } finally {
-                      if (_didIteratorError2) {
-                        throw _iteratorError2;
-                      }
-                    }
-                  }
-
-                  if (window.mathlive.readAloudCurrentMark !== value) {
-                    window.mathlive.readAloudCurrentToken = value;
-
-                    if (value && value === window.mathlive.readAloudFinalToken) {
-                      window.mathlive.readAloudAudio.pause();
-                    } else {
-                      window.mathlive.readAloudCurrentMark = value;
-                      highlightAtomID(window.mathlive.readAloudElement, window.mathlive.readAloudCurrentMark);
-                    }
-                  }
-                });
-              } else {
-                window.mathlive.readAloudAudio.pause();
-              }
-
-              window.mathlive.readAloudAudio.src = url;
-
-              if (status) {
-                status(window.mathlive.readAloudMathField, 'playing');
-              }
-
-              window.mathlive.readAloudAudio.play();
-            } else {// console.log('polly.synthesizeSpeech():' + data);
-            }
-          }
-        });
-      } else {
-        console.log('polly.synthesizeSpeech():' + data);
-      }
-    }
-  });
-}
-/**
- * Return the status of a Read Aloud operation (reading with synchronized
- * highlighting). 
- * 
- * Possible values include:
- * - `ready`
- * - `playing`
- * - `paused`
- * - `unavailable`
- * 
- * **See** {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
- * @return {string}
- * @function module:mathlive#readAloudStatus
- */
-
-
-function readAloudStatus() {
-  if (!window) return 'unavailable';
-  window.mathlive = window.mathlive || {};
-  if (!window.mathlive.readAloudAudio) return 'ready';
-  if (window.mathlive.readAloudAudio.paused) return 'paused';
-  if (!window.mathlive.readAloudAudio.ended) return 'playing';
-  return 'ready';
-}
-/**
- * If a Read Aloud operation is in progress, stop it.
- * 
- * **See** {@linkcode module:editor/mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
- * @function module:mathlive#pauseReadAloud
- */
-
-
-function pauseReadAloud() {
-  if (!window) return;
-  window.mathlive = window.mathlive || {};
-
-  if (window.mathlive.readAloudAudio) {
-    if (window.mathlive.onReadAloudStatus) {
-      window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField, 'paused');
-    }
-
-    window.mathlive.readAloudAudio.pause();
-  }
-}
-/**
- * If a Read Aloud operation is paused, resume it
- * 
- * **See** {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
- * @function module:mathlive#resumeReadAloud
- */
-
-
-function resumeReadAloud() {
-  if (!window) return;
-  window.mathlive = window.mathlive || {};
-
-  if (window.mathlive.readAloudAudio) {
-    if (window.mathlive.onReadAloudStatus) {
-      window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField, 'playing');
-    }
-
-    window.mathlive.readAloudAudio.play();
-  }
-}
-/**
- * If a Read Aloud operation is in progress, read from a specified token
- * 
- * **See** {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
- *
- * @param {string} token
- * @param {number} [count]
- * @function module:mathlive#playReadAloud
- */
-
-
-function playReadAloud(token, count) {
-  if (!window) return;
-  window.mathlive = window.mathlive || {};
-
-  if (window.mathlive.readAloudAudio) {
-    var timeIndex = 0;
-    window.mathlive.readAloudFinalToken = null;
-
-    if (token) {
-      window.mathlive.readAloudMarks = window.mathlive.readAloudMarks || [];
-      var _iteratorNormalCompletion3 = true;
-      var _didIteratorError3 = false;
-      var _iteratorError3 = undefined;
-
-      try {
-        for (var _iterator3 = window.mathlive.readAloudMarks[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-          var mark = _step3.value;
-
-          if (mark.value === token) {
-            timeIndex = mark.time / 1000;
-          }
-        }
-      } catch (err) {
-        _didIteratorError3 = true;
-        _iteratorError3 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
-            _iterator3.return();
-          }
-        } finally {
-          if (_didIteratorError3) {
-            throw _iteratorError3;
-          }
-        }
-      }
-
-      var tokenIndex = window.mathlive.readAloudTokens.indexOf(token);
-
-      if (tokenIndex >= 0) {
-        tokenIndex += count;
-
-        if (tokenIndex < window.mathlive.readAloudTokens.length) {
-          window.mathlive.readAloudFinalToken = tokenIndex;
-        }
-      }
-    }
-
-    window.mathlive.readAloudAudio.currentTime = timeIndex;
-
-    if (window.mathlive.onReadAloudStatus) {
-      window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField, 'playing');
-    }
-
-    window.mathlive.readAloudAudio.play();
-  }
-}
-/**
- * Transform all the elements in the document body that contain LaTeX code
- * into typeset math.
- * 
- * **Note:** This is a very expensive call, as it needs to parse the entire 
- * DOM tree to determine which elements need to be processed. In most cases 
- * this should only be called once per document, once the DOM has been loaded.
- * To render a specific element, use {@linkcode module:mathlive#renderMathInElement renderMathInElement()}
- *
- * **See:** {@tutorial USAGE_GUIDE}
- *
- * @param {object} [options={}] See {@linkcode module:mathlive#renderMathInElement renderMathInElement()}
- * for details
- * @example
- * import MathLive from 'dist/mathlive.mjs';
- * document.addEventListener("load", () => { 
- *     MathLive.renderMathInDocument();
- * });
- * 
- */
-
-
-function renderMathInDocument(options) {
-  renderMathInElement(document.body, options);
-}
-
-function getElement(element) {
-  var result = element;
-
-  if (typeof element === 'string') {
-    result = document.getElementById(element);
-
-    if (!result) {
-      throw Error("The element with ID \"".concat(element, "\" could not be found."));
-    }
-  }
-
-  return result;
-}
-/**
- * Transform all the children of `element`, recursively, that contain LaTeX code
- * into typeset math.
- *
- * **See:** {@tutorial USAGE_GUIDE}
- *
- * @param {Element|string} element An HTML DOM element, or a string containing
- * the ID of an element.
- * @param {object} [options={}]
- *
- * @param {string} [options.namespace=''] - Namespace that is added to `data-`
- * attributes to avoid collisions with other libraries. 
- * 
- * It is empty by default.
- * 
- * The namespace should be a string of lowercase letters.
- * 
- * @param {object[]} [options.macros={}] - Custom LaTeX macros
- * 
- * @param {string[]} [options.skipTags=['noscript', 'style', 'textarea', 'pre', 'code', 'annotation', 'annotation-xml'] ] 
- * an array of tag names whose content will
- *  not be scanned for delimiters (unless their class matches the `processClass`
- * pattern below.
- * 
- * @param {string} [options.ignoreClass='tex2jax_ignore'] a string used as a
- * regular expression of class names of elements whose content will not be
- * scanned for delimiters
-
- * @param {string} [options.processClass='tex2jax_process']   a string used as a
- * regular expression of class names of elements whose content **will** be
- * scanned for delimiters,  even if their tag name or parent class name would
- * have prevented them from doing so.
- * 
- * @param {string} [options.processScriptType="math/tex"] `<script>` tags of the 
- * indicated type will be processed while others will be ignored.
-
- * 
- * @param {string} [options.renderAccessibleContent='mathml'] The format(s) in 
- * which to render the math for screen readers:
- * - `'mathml'` MathML
- * - `'speakable-text'` Spoken representation
- * 
- * You can pass an empty string to turn off the rendering of accessible content.
- * 
- * You can pass multiple values separated by spaces, e.g `'mathml speakable-text'`
- * 
- * @param {boolean} [options.preserveOriginalContent=true] if true, store the
- * original textual content of the element in a `data-original-content`
- * attribute. This value can be accessed for example to restore the element to
- * its original value:
- * ```javascript
- *      elem.innerHTML = elem.dataset.originalContent;
- * ```
- * @param {boolean} [options.readAloud=false] if true, generate markup that can
- * be read aloud later using {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
- * 
- * @param {boolean} [options.TeX.processEnvironments=true] if false, math expression
- * that start with `\begin{` will not automatically be rendered.
- * 
- * @param {string[][]} [options.TeX.delimiters.inline=[['\\(','\\)']] ] arrays
- * of delimiter pairs that will trigger a render of the content in 'textstyle'
- *
- * @param {string[][]} [options.TeX.delimiters.display=[['$$', '$$'], ['\\[', '\\]']] ] arrays
- * of delimiter pairs that will trigger a render of the content in
- * 'displaystyle'.
- * 
- * @param {function} [renderToMarkup] a function that will convert any LaTeX found to
- * HTML markup. This is only useful to override the default MathLive renderer
- * 
- * @param {function} [renderToMathML] a function that will convert any LaTeX found to
- * MathML markup.
- * 
- * @param {function} [renderToSpeakableText] a function that will convert any LaTeX found to
- * speakable text markup.
- * 
- * @function module:mathlive#renderMathInElement
- */
-
-
-function renderMathInElement(element, options) {
-  if (!_autoRender.default) {
-    console.warn('The AutoRender module is not loaded.');
-    return;
-  }
-
-  options = options || {};
-  options.renderToMarkup = options.renderToMarkup || toMarkup;
-  options.renderToMathML = options.renderToMathML || toMathML;
-  options.renderToSpeakableText = options.renderToSpeakableText || latexToSpeakableText;
-  options.macros = options.macros || _definitions.default.MACROS;
-
-  _autoRender.default.renderMathInElement(getElement(element), options);
-}
-
-function validateNamespace(options) {
-  if (options.namespace) {
-    if (!/^[a-z]+[-]?$/.test(options.namespace)) {
-      throw Error('options.namespace must be a string of lowercase characters only');
-    }
-
-    if (!/-$/.test(options.namespace)) {
-      options.namespace += '-';
-    }
-  }
-}
-/**
- *
- * @param {string|Element|MathField} element
- * @param {Object.<string, any>} [options={}]
- * @param {string} options.namespace The namespace used for the `data-`
- * attributes. If you used a namespace with `renderMathInElement`, you must
- * use the same namespace here.
- * @function module:mathlive#revertToOriginalContent
- */
-
-
-function revertToOriginalContent(element, options) {
-  element = getElement(element); // element is a pair: accessible span, math -- set it to the math part
-
-  element = element.children[1];
-
-  if (element instanceof _editorMathfield.default.MathField) {
-    element.revertToOriginalContent();
-  } else {
-    options = options || {};
-    validateNamespace(options);
-    element.innerHTML = element.getAttribute('data-' + (options.namespace || '') + 'original-content');
-  }
-}
-/**
- * After calling {@linkcode module:mathlive#renderMathInElement renderMathInElement}
- * or {@linkcode module:mathlive#makeMathField makeMathField} the original content
- * can be retrived by calling this function.
- * 
- * Given the following markup:
- * ```html
- * <span id='equation'>$$f(x)=sin(x)$$</span>
- * ```
- * The following code:
- * ```javascript
- * MathLive.renderMathInElement('equation');
- * console.log(MathLive.getOriginalContent('equation'));
- * ```
- * will output:
- * ```
- * $$f(x)=sin(x)$$
- * ```
- * @param {string | Element | MathField} element - A DOM element ID, a DOM 
- * element or a MathField.
- * @param {object} [options={}]
- * @param {string} [options.namespace=""] The namespace used for the `data-`
- * attributes. 
- * If you used a namespace with `renderMathInElement`, you must
- * use the same namespace here.
- * @return {string} the original content of the element.
- * @function module:mathlive#getOriginalContent
- */
-
-
-function getOriginalContent(element, options) {
-  element = getElement(element); // element is a pair: accessible span, math -- set it to the math part
-
-  element = element.children[1];
-
-  if (element instanceof _editorMathfield.default.MathField) {
-    return element.originalContent;
-  }
-
-  options = options || {};
-  validateNamespace(options);
-  return element.getAttribute('data-' + (options.namespace || '') + 'original-content');
-}
-
-var MathLive = {
-  latexToMarkup: toMarkup,
-  latexToMathML: toMathML,
-  latexToSpeakableText: latexToSpeakableText,
-  latexToAST: latexToAST,
-  makeMathField: makeMathField,
-  renderMathInDocument: renderMathInDocument,
-  renderMathInElement: renderMathInElement,
-  revertToOriginalContent: revertToOriginalContent,
-  getOriginalContent: getOriginalContent,
-  readAloud: readAloud,
-  readAloudStatus: readAloudStatus,
-  pauseReadAloud: pauseReadAloud,
-  resumeReadAloud: resumeReadAloud,
-  playReadAloud: playReadAloud
-};
-var _default = MathLive;
-exports.default = _default;
\ No newline at end of file
+var global,factory;global=this,factory=function(){const t=0,e=1,i=2,s=3,a=4,o=5,n=6,r=7,l=8,c=9,h=10,d=11,p=12;function m(t,e){e=e||0;const i=t.charCodeAt(e);if(55296<=i&&i<=56319&&e<t.length-1){const s=i,a=t.charCodeAt(e+1);return 56320<=a&&a<=57343?1024*(s-55296)+(a-56320)+65536:s}if(56320<=i&&i<=57343&&e>=1){const s=t.charCodeAt(e-1),a=i;return 55296<=s&&s<=56319?1024*(s-55296)+(a-56320)+65536:a}return i}function u(u,g){if((g=g||0)<0)return 0;if(g>=u.length-1)return u.length;let y=f(m(u,g));for(let k=g+1;k<u.length;k++){if(55296<=u.charCodeAt(k-1)&&u.charCodeAt(k-1)<=56319&&56320<=u.charCodeAt(k)&&u.charCodeAt(k)<=57343)continue;const g=f(m(u,k));if(x=g,!((b=y)===d&&x===p||b===s&&x===d||b===d&&x===s||b===t&&x===e||b!==i&&b!==t&&b!==e&&x!==i&&x!==t&&x!==e&&(b===n&&(x===n||x===r||x===c||x===h)||!(b!==c&&b!==r||x!==r&&x!==l)||(b===h||b===l)&&x===l||b===a&&x===a||x===s||x===o)))return k;y=g}var b,x;return u.length}function f(m){return 13===m?t:10===m?e:0<=m&&m<=9||11<=m&&m<=12||14<=m&&m<=31||127<=m&&m<=159||173===m||1536<=m&&m<=1541||1564===m||1757===m||1807===m||6158===m||8203===m||8206<=m&&m<=8207||8232===m||8233===m||8234<=m&&m<=8238||8288<=m&&m<=8292||8293===m||8294<=m&&m<=8303||55296<=m&&m<=57343||65279===m||65520<=m&&m<=65528||65529<=m&&m<=65531||69821===m||113824<=m&&m<=113827||119155<=m&&m<=119162||917504===m||917505===m||917506<=m&&m<=917535||917536<=m&&m<=917631||917632<=m&&m<=917759||918e3<=m&&m<=921599?i:768<=m&&m<=879||1155<=m&&m<=1159||1160<=m&&m<=1161||1425<=m&&m<=1469||1471===m||1473<=m&&m<=1474||1476<=m&&m<=1477||1479===m||1552<=m&&m<=1562||1611<=m&&m<=1631||1648===m||1750<=m&&m<=1756||1759<=m&&m<=1764||1767<=m&&m<=1768||1770<=m&&m<=1773||1809===m||1840<=m&&m<=1866||1958<=m&&m<=1968||2027<=m&&m<=2035||2070<=m&&m<=2073||2075<=m&&m<=2083||2085<=m&&m<=2087||2089<=m&&m<=2093||2137<=m&&m<=2139||2275<=m&&m<=2306||2362===m||2364===m||2369<=m&&m<=2376||2381===m||2385<=m&&m<=2391||2402<=m&&m<=2403||2433===m||2492===m||2494===m||2497<=m&&m<=2500||2509===m||2519===m||2530<=m&&m<=2531||2561<=m&&m<=2562||2620===m||2625<=m&&m<=2626||2631<=m&&m<=2632||2635<=m&&m<=2637||2641===m||2672<=m&&m<=2673||2677===m||2689<=m&&m<=2690||2748===m||2753<=m&&m<=2757||2759<=m&&m<=2760||2765===m||2786<=m&&m<=2787||2817===m||2876===m||2878===m||2879===m||2881<=m&&m<=2884||2893===m||2902===m||2903===m||2914<=m&&m<=2915||2946===m||3006===m||3008===m||3021===m||3031===m||3072===m||3134<=m&&m<=3136||3142<=m&&m<=3144||3146<=m&&m<=3149||3157<=m&&m<=3158||3170<=m&&m<=3171||3201===m||3260===m||3263===m||3266===m||3270===m||3276<=m&&m<=3277||3285<=m&&m<=3286||3298<=m&&m<=3299||3329===m||3390===m||3393<=m&&m<=3396||3405===m||3415===m||3426<=m&&m<=3427||3530===m||3535===m||3538<=m&&m<=3540||3542===m||3551===m||3633===m||3636<=m&&m<=3642||3655<=m&&m<=3662||3761===m||3764<=m&&m<=3769||3771<=m&&m<=3772||3784<=m&&m<=3789||3864<=m&&m<=3865||3893===m||3895===m||3897===m||3953<=m&&m<=3966||3968<=m&&m<=3972||3974<=m&&m<=3975||3981<=m&&m<=3991||3993<=m&&m<=4028||4038===m||4141<=m&&m<=4144||4146<=m&&m<=4151||4153<=m&&m<=4154||4157<=m&&m<=4158||4184<=m&&m<=4185||4190<=m&&m<=4192||4209<=m&&m<=4212||4226===m||4229<=m&&m<=4230||4237===m||4253===m||4957<=m&&m<=4959||5906<=m&&m<=5908||5938<=m&&m<=5940||5970<=m&&m<=5971||6002<=m&&m<=6003||6068<=m&&m<=6069||6071<=m&&m<=6077||6086===m||6089<=m&&m<=6099||6109===m||6155<=m&&m<=6157||6313===m||6432<=m&&m<=6434||6439<=m&&m<=6440||6450===m||6457<=m&&m<=6459||6679<=m&&m<=6680||6683===m||6742===m||6744<=m&&m<=6750||6752===m||6754===m||6757<=m&&m<=6764||6771<=m&&m<=6780||6783===m||6832<=m&&m<=6845||6846===m||6912<=m&&m<=6915||6964===m||6966<=m&&m<=6970||6972===m||6978===m||7019<=m&&m<=7027||7040<=m&&m<=7041||7074<=m&&m<=7077||7080<=m&&m<=7081||7083<=m&&m<=7085||7142===m||7144<=m&&m<=7145||7149===m||7151<=m&&m<=7153||7212<=m&&m<=7219||7222<=m&&m<=7223||7376<=m&&m<=7378||7380<=m&&m<=7392||7394<=m&&m<=7400||7405===m||7412===m||7416<=m&&m<=7417||7616<=m&&m<=7669||7676<=m&&m<=7679||8204<=m&&m<=8205||8400<=m&&m<=8412||8413<=m&&m<=8416||8417===m||8418<=m&&m<=8420||8421<=m&&m<=8432||11503<=m&&m<=11505||11647===m||11744<=m&&m<=11775||12330<=m&&m<=12333||12334<=m&&m<=12335||12441<=m&&m<=12442||42607===m||42608<=m&&m<=42610||42612<=m&&m<=42621||42654<=m&&m<=42655||42736<=m&&m<=42737||43010===m||43014===m||43019===m||43045<=m&&m<=43046||43204===m||43232<=m&&m<=43249||43302<=m&&m<=43309||43335<=m&&m<=43345||43392<=m&&m<=43394||43443===m||43446<=m&&m<=43449||43452===m||43493===m||43561<=m&&m<=43566||43569<=m&&m<=43570||43573<=m&&m<=43574||43587===m||43596===m||43644===m||43696===m||43698<=m&&m<=43700||43703<=m&&m<=43704||43710<=m&&m<=43711||43713===m||43756<=m&&m<=43757||43766===m||44005===m||44008===m||44013===m||64286===m||65024<=m&&m<=65039||65056<=m&&m<=65071||65438<=m&&m<=65439||66045===m||66272===m||66422<=m&&m<=66426||68097<=m&&m<=68099||68101<=m&&m<=68102||68108<=m&&m<=68111||68152<=m&&m<=68154||68159===m||68325<=m&&m<=68326||69633===m||69688<=m&&m<=69702||69759<=m&&m<=69761||69811<=m&&m<=69814||69817<=m&&m<=69818||69888<=m&&m<=69890||69927<=m&&m<=69931||69933<=m&&m<=69940||70003===m||70016<=m&&m<=70017||70070<=m&&m<=70078||70090<=m&&m<=70092||70191<=m&&m<=70193||70196===m||70198<=m&&m<=70199||70367===m||70371<=m&&m<=70378||70400<=m&&m<=70401||70460===m||70462===m||70464===m||70487===m||70502<=m&&m<=70508||70512<=m&&m<=70516||70832===m||70835<=m&&m<=70840||70842===m||70845===m||70847<=m&&m<=70848||70850<=m&&m<=70851||71087===m||71090<=m&&m<=71093||71100<=m&&m<=71101||71103<=m&&m<=71104||71132<=m&&m<=71133||71219<=m&&m<=71226||71229===m||71231<=m&&m<=71232||71339===m||71341===m||71344<=m&&m<=71349||71351===m||71453<=m&&m<=71455||71458<=m&&m<=71461||71463<=m&&m<=71467||92912<=m&&m<=92916||92976<=m&&m<=92982||94095<=m&&m<=94098||113821<=m&&m<=113822||119141===m||119143<=m&&m<=119145||119150<=m&&m<=119154||119163<=m&&m<=119170||119173<=m&&m<=119179||119210<=m&&m<=119213||119362<=m&&m<=119364||121344<=m&&m<=121398||121403<=m&&m<=121452||121461===m||121476===m||121499<=m&&m<=121503||121505<=m&&m<=121519||125136<=m&&m<=125142||917760<=m&&m<=917999?s:127462<=m&&m<=127487?a:127995<=m&&m<=127999?p:2307===m||2363===m||2366<=m&&m<=2368||2377<=m&&m<=2380||2382<=m&&m<=2383||2434<=m&&m<=2435||2495<=m&&m<=2496||2503<=m&&m<=2504||2507<=m&&m<=2508||2563===m||2622<=m&&m<=2624||2691===m||2750<=m&&m<=2752||2761===m||2763<=m&&m<=2764||2818<=m&&m<=2819||2880===m||2887<=m&&m<=2888||2891<=m&&m<=2892||3007===m||3009<=m&&m<=3010||3014<=m&&m<=3016||3018<=m&&m<=3020||3073<=m&&m<=3075||3137<=m&&m<=3140||3202<=m&&m<=3203||3262===m||3264<=m&&m<=3265||3267<=m&&m<=3268||3271<=m&&m<=3272||3274<=m&&m<=3275||3330<=m&&m<=3331||3391<=m&&m<=3392||3398<=m&&m<=3400||3402<=m&&m<=3404||3458<=m&&m<=3459||3536<=m&&m<=3537||3544<=m&&m<=3550||3570<=m&&m<=3571||3635===m||3763===m||3902<=m&&m<=3903||3967===m||4145===m||4155<=m&&m<=4156||4182<=m&&m<=4183||4228===m||6070===m||6078<=m&&m<=6085||6087<=m&&m<=6088||6435<=m&&m<=6438||6441<=m&&m<=6443||6448<=m&&m<=6449||6451<=m&&m<=6456||6681<=m&&m<=6682||6741===m||6743===m||6765<=m&&m<=6770||6916===m||6965===m||6971===m||6973<=m&&m<=6977||6979<=m&&m<=6980||7042===m||7073===m||7078<=m&&m<=7079||7082===m||7143===m||7146<=m&&m<=7148||7150===m||7154<=m&&m<=7155||7204<=m&&m<=7211||7220<=m&&m<=7221||7393===m||7410<=m&&m<=7411||43043<=m&&m<=43044||43047===m||43136<=m&&m<=43137||43188<=m&&m<=43203||43346<=m&&m<=43347||43395===m||43444<=m&&m<=43445||43450<=m&&m<=43451||43453<=m&&m<=43456||43567<=m&&m<=43568||43571<=m&&m<=43572||43597===m||43755===m||43758<=m&&m<=43759||43765===m||44003<=m&&m<=44004||44006<=m&&m<=44007||44009<=m&&m<=44010||44012===m||69632===m||69634===m||69762===m||69808<=m&&m<=69810||69815<=m&&m<=69816||69932===m||70018===m||70067<=m&&m<=70069||70079<=m&&m<=70080||70188<=m&&m<=70190||70194<=m&&m<=70195||70197===m||70368<=m&&m<=70370||70402<=m&&m<=70403||70463===m||70465<=m&&m<=70468||70471<=m&&m<=70472||70475<=m&&m<=70477||70498<=m&&m<=70499||70833<=m&&m<=70834||70841===m||70843<=m&&m<=70844||70846===m||70849===m||71088<=m&&m<=71089||71096<=m&&m<=71099||71102===m||71216<=m&&m<=71218||71227<=m&&m<=71228||71230===m||71340===m||71342<=m&&m<=71343||71350===m||71456<=m&&m<=71457||71462===m||94033<=m&&m<=94078||119142===m||119149===m?o:4352<=m&&m<=4447||43360<=m&&m<=43388?n:4448<=m&&m<=4519||55216<=m&&m<=55238?r:4520<=m&&m<=4607||55243<=m&&m<=55291?l:44032===m||44060===m||44088===m||44116===m||44144===m||44172===m||44200===m||44228===m||44256===m||44284===m||44312===m||44340===m||44368===m||44396===m||44424===m||44452===m||44480===m||44508===m||44536===m||44564===m||44592===m||44620===m||44648===m||44676===m||44704===m||44732===m||44760===m||44788===m||44816===m||44844===m||44872===m||44900===m||44928===m||44956===m||44984===m||45012===m||45040===m||45068===m||45096===m||45124===m||45152===m||45180===m||45208===m||45236===m||45264===m||45292===m||45320===m||45348===m||45376===m||45404===m||45432===m||45460===m||45488===m||45516===m||45544===m||45572===m||45600===m||45628===m||45656===m||45684===m||45712===m||45740===m||45768===m||45796===m||45824===m||45852===m||45880===m||45908===m||45936===m||45964===m||45992===m||46020===m||46048===m||46076===m||46104===m||46132===m||46160===m||46188===m||46216===m||46244===m||46272===m||46300===m||46328===m||46356===m||46384===m||46412===m||46440===m||46468===m||46496===m||46524===m||46552===m||46580===m||46608===m||46636===m||46664===m||46692===m||46720===m||46748===m||46776===m||46804===m||46832===m||46860===m||46888===m||46916===m||46944===m||46972===m||47e3===m||47028===m||47056===m||47084===m||47112===m||47140===m||47168===m||47196===m||47224===m||47252===m||47280===m||47308===m||47336===m||47364===m||47392===m||47420===m||47448===m||47476===m||47504===m||47532===m||47560===m||47588===m||47616===m||47644===m||47672===m||47700===m||47728===m||47756===m||47784===m||47812===m||47840===m||47868===m||47896===m||47924===m||47952===m||47980===m||48008===m||48036===m||48064===m||48092===m||48120===m||48148===m||48176===m||48204===m||48232===m||48260===m||48288===m||48316===m||48344===m||48372===m||48400===m||48428===m||48456===m||48484===m||48512===m||48540===m||48568===m||48596===m||48624===m||48652===m||48680===m||48708===m||48736===m||48764===m||48792===m||48820===m||48848===m||48876===m||48904===m||48932===m||48960===m||48988===m||49016===m||49044===m||49072===m||49100===m||49128===m||49156===m||49184===m||49212===m||49240===m||49268===m||49296===m||49324===m||49352===m||49380===m||49408===m||49436===m||49464===m||49492===m||49520===m||49548===m||49576===m||49604===m||49632===m||49660===m||49688===m||49716===m||49744===m||49772===m||49800===m||49828===m||49856===m||49884===m||49912===m||49940===m||49968===m||49996===m||50024===m||50052===m||50080===m||50108===m||50136===m||50164===m||50192===m||50220===m||50248===m||50276===m||50304===m||50332===m||50360===m||50388===m||50416===m||50444===m||50472===m||50500===m||50528===m||50556===m||50584===m||50612===m||50640===m||50668===m||50696===m||50724===m||50752===m||507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Nt(t,e,i,s,a,o){let n,r,l,c;n=l=c=Pt.getValue("math",e),r=null;let h="Size1-Regular";"\\vert"===e||"\\lvert"===e||"\\rvert"===e||"\\mvert"===e||"\\mid"===e?l=n=c="∣":"\\Vert"===e||"\\lVert"===e||"\\rVert"===e||"\\mVert"===e||"\\|"===e?l=n=c="∥":"\\uparrow"===e?l=c="⏐":"\\Uparrow"===e?l=c="‖":"\\downarrow"===e?n=l="⏐":"\\Downarrow"===e?n=l="‖":"\\updownarrow"===e?(n="↑",l="⏐",c="↓"):"\\Updownarrow"===e?(n="⇑",l="‖",c="⇓"):"["===e||"\\lbrack"===e?(n="⎡",l="⎢",c="⎣",h="Size4-Regular"):"]"===e||"\\rbrack"===e?(n="⎤",l="⎥",c="⎦",h="Size4-Regular"):"\\lfloor"===e?(l=n="⎢",c="⎣",h="Size4-Regular"):"\\lceil"===e?(n="⎡",l=c="⎢",h="Size4-Regular"):"\\rfloor"===e?(l=n="⎥",c="⎦",h="Size4-Regular"):"\\rceil"===e?(n="⎤",l=c="⎥",h="Size4-Regular"):"("===e?(n="⎛",l="⎜",c="⎝",h="Size4-Regular"):")"===e?(n="⎞",l="⎟",c="⎠",h="Size4-Regular"):"\\{"===e||"\\lbrace"===e?(n="⎧",r="⎨",c="⎩",l="⎪",h="Size4-Regular"):"\\}"===e||"\\rbrace"===e?(n="⎫",r="⎬",c="⎭",l="⎪",h="Size4-Regular"):"\\lgroup"===e?(n="⎧",c="⎩",l="⎪",h="Size4-Regular"):"\\rgroup"===e?(n="⎫",c="⎭",l="⎪",h="Size4-Regular"):"\\lmoustache"===e?(n="⎧",c="⎭",l="⎪",h="Size4-Regular"):"\\rmoustache"===e?(n="⎫",c="⎩",l="⎪",h="Size4-Regular"):"\\surd"===e?(n="",c="⎷",l="",h="Size4-Regular"):"\\ulcorner"===e?(n="┌",l=c=" 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Zt(t,e,i,s,a,o){if(!e||0===e.length||"."===e)return Xt(t,a,t);let n;"<"===e||"\\lt"===e?e="\\langle":">"!==e&&"\\gt"!==e||(e="\\rangle"),n=Ht.includes(e)?Ut:$t.includes(e)?Gt:jt;const r=function(t,e,i,s){for(let o=Math.min(2,3-s.mathstyle.size);o<i.length&&"stack"!==i[o].type;o++){const s=M.getCharacterMetrics(t,"small"===(a=i[o]).type?"Main-Regular":"large"===a.type?"Size"+a.size+"-Regular":"Size4-Regular");if(s.defaultMetrics)return{type:"small",mathstyle:O.SCRIPT};let n=s.height+s.depth;if("small"===i[o].type&&(n*=i[o].mathstyle.sizeMultiplier),n>e)return i[o]}var a;return i[i.length-1]}(Pt.getValue("math",e),i,n,a);return"small"===r.type?function(t,e,i,s,a,o){const n=It("AMS-Regular",Pt.getValue("math",e)),r=et.makeStyleWrap(t,n,a.mathstyle,i,o);return s&&r.setTop((1-a.mathstyle.sizeMultiplier/i.sizeMultiplier)*a.mathstyle.metrics.axisHeight),r.setStyle("color",a.color),"number"==typeof a.opacity&&r.setStyle("opacity",a.opacity),r}(t,e,r.mathstyle,s,a,o):"large"===r.type?Rt(t,e,r.size,s,a,o):Nt(t,e,i,s,a,o)}function Xt(t,e,i){return et.makeSpanOfType(t,"","sizing"+e.mathstyle.adjustTo(O.TEXT)+" nulldelimiter "+(i||""))}var Jt={makeSizedDelim:function(t,e,i,s,a){return"."===e?Xt(t,s,a):("<"===e||"\\lt"===e?e="\\langle":">"!==e&&"\\gt"!==e||(e="\\rangle"),$t.includes(e)||Ht.includes(e)?Rt(t,e,i,!1,s,a):Wt.includes(e)?Nt(t,e,Vt[i],!1,s,a):null)},makeCustomSizedDelim:Zt,makeLeftRightDelim:function(t,e,i,s,a,o){if("."===e)return Xt(t,a,o);const n=a.mathstyle.metrics.axisHeight*a.mathstyle.sizeMultiplier,r=5/M.METRICS.ptPerEm;let l=s+n,c=i-n,h=901*(c=Math.max(l,c))/500;return l=2*c-r,Zt(t,e,h=Math.max(h,l),!0,a,o)}};const Yt=et.makeSpan,Qt=et.makeOrd,te=et.makeInner,ee=et.makeHlist,ie=et.makeVlist,se=/\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5/,ae=/^([A-Za-z]|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)$/,oe={size1:.5,size2:.7,size3:.8,size4:.9,size5:1,size6:1.2,size7:1.44,size8:1.73,size9:2.07,size10:2.49};class ne{constructor(t,e,i,s){this.mode=t,this.type=e,this.body=i,this.applyStyle(s)}getStyle(){return{color:this.phantom?"transparent":this.color,backgroundColor:this.phantom?"transparent":this.backgroundColor,fontFamily:this.baseFontFamily||this.fontFamily||this.autoFontFamily,fontShape:this.fontShape,fontSeries:this.fontSeries,fontSize:this.fontSize,cssId:this.cssId,cssClass:this.cssClass}}applyStyle(t){if(Object.assign(this,t),"none"===this.fontFamily&&(this.fontFamily=""),"auto"===this.fontShape&&(this.fontShape=""),"auto"===this.fontSeries&&(this.fontSeries=""),"none"===this.color&&(this.color=""),"none"===this.backgroundColor&&(this.backgroundColor=""),"auto"===this.fontSize&&(this.fontSize=""),this.fontSize&&(this.maxFontSize=oe[this.fontSize]),"math"===this.mode){const t="string"==typeof this.body?this.body:"";this.autoFontFamily="cmr",ae.test(t)?this.autoFontFamily="math":/\\imath|\\jmath|\\pounds/.test(t)?this.autoFontFamily="mainit":se.test(t)||"math"!==this.baseFontFamily||(this.autoFontFamily="cmr")}else"text"===this.mode&&("root"!==this.type&&(this.type=""),delete this.baseFontFamily,delete this.autoFontFamily)}getInitialBaseElement(){let t=this;return Array.isArray(this.body)&&this.body.length>0&&("first"!==this.body[0].type?t=this.body[0].getInitialBaseElement():this.body[1]&&(t=this.body[1].getInitialBaseElement())),t}getFinalBaseElement(){return Array.isArray(this.body)&&this.body.length>0?this.body[this.body.length-1].getFinalBaseElement():this}isCharacterBox(){const t=this.getInitialBaseElement();return/minner|mbin|mrel|mpunct|mopen|mclose|textord/.test(t.type)}forEach(t){if(t(this),Array.isArray(this.body))for(const e of this.body)e&&e.forEach(t);else this.body&&"object"==typeof this.body&&t(this.body);if(this.superscript)for(const e of this.superscript)e&&e.forEach(t);if(this.subscript)for(const e of this.subscript)e&&e.forEach(t);if(this.overscript)for(const e of this.overscript)e&&e.forEach(t);if(this.underscript)for(const e of this.underscript)e&&e.forEach(t);if(this.numer)for(const e of this.numer)e&&e.forEach(t);if(this.denom)for(const e of this.denom)e&&e.forEach(t);if(this.index)for(const e of this.index)e&&e.forEach(t);if(this.array)for(const e of this.array)for(const i of e)for(const e of i)e.forEach(t)}filter(t){let e=[];t(this)&&e.push(this);for(const i of["body","superscript","subscript","overscript","underscript","numer","denom","index"])if(Array.isArray(this[i]))for(const s of this[i])s&&(e=e.concat(s.filter(t)));if(Array.isArray(this.array))for(const i of this.array)for(const s of i)s&&(e=e.concat(s.filter(t)));return e}decomposeGroup(t){const e=t.clone({mathstyle:this.mathstyle}),i=Qt(he(e,this.body));return this.cssId&&(i.cssId=this.cssId),i.applyStyle({backgroundColor:this.backgroundColor,cssClass:this.cssClass}),i}decomposeArray(t){let e=this.colFormat;e&&0===e.length&&(e=[{align:"l"}]),e||(e=[{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"}]);const i=[];let s=0;for(const t of e)t.align&&s++;for(const t of this.array){let e=0;for(;e<t.length;){const a=[],o=Math.min(t.length,e+s);for(;e<o;)a.push(t[e++]);i.push(a)}}1===i[i.length-1].length&&0===i[i.length-1][0].length&&i.pop();const a=O.toMathstyle(this.mathstyle)||t.mathstyle,o=(this.arraystretch||1)*S.baselineskip,n=.7*o,r=.3*o;let l=0,c=0;const h=[],d=i.length;for(let e=0;e<d;++e){const s=i[e];c=Math.max(c,s.length);let a=n,o=r;const p=[];for(let e=0;e<s.length;++e){const i=he(t.clone({mathstyle:this.mathstyle}),s[e])||[],n=[Qt(null)].concat(i);o=Math.max(o,et.depth(n)),a=Math.max(a,et.height(n)),p.push(n)}let m=e===d-1?0:this.jot||0;this.rowGaps&&this.rowGaps[e]&&(m=this.rowGaps[e])>0&&(o<(m+=r)&&(o=m),m=0),p.height=a,p.depth=o,l+=a,p.pos=l,l+=o+m,h.push(p)}const p=l/2+a.metrics.axisHeight,m=[];for(let e=0;e<c;e++){const i=[];for(const t of h){const s=t[e];s&&(s.depth=t.depth,s.height=t.height,i.push(s),i.push(t.pos-p))}i.length>0&&m.push(ie(t,i,"individualShift"))}const u=[];let f=!1,g=!1,y=0,b=!this.lFence;for(const i of e){if(i.align&&y>=m.length)break;if(i.align&&y<m.length)f?u.push(re(2*S.arraycolsep)):(g||b)&&u.push(re(S.arraycolsep)),u.push(Yt(m[y],"col-align-"+i.align)),y++,f=!0,g=!1,b=!1;else if(void 0!==i.gap)"number"==typeof i.gap?u.push(re(i.gap)):u.push(le(t,h,p,i.gap)),f=!1,g=!1,b=!1;else if(i.rule){const e=Yt(null,"vertical-separator");e.setStyle("height",l,"em"),e.setStyle("margin-top",3*t.mathstyle.metrics.axisHeight-p,"em"),e.setStyle("vertical-align","top");let i=0;g?i=S.doubleRuleSep-S.arrayrulewidth:f&&(i=S.arraycolsep-S.arrayrulewidth),e.setLeft(i,"em"),u.push(e),f=!1,g=!0,b=!1}}if(f&&!this.rFence&&u.push(re(S.arraycolsep)),!(this.lFence&&"."!==this.lFence||this.rFence&&"."!==this.rFence))return Qt(u,"mtable");const x=Yt(u,"mtable"),k=et.height(x),v=et.depth(x);return Qt([this.bind(t,Jt.makeLeftRightDelim("mopen",this.lFence,k,v,t)),x,this.bind(t,Jt.makeLeftRightDelim("mclose",this.rFence,k,v,t))])}decomposeGenfrac(t){const e="auto"===this.mathstyle?t.mathstyle:O.toMathstyle(this.mathstyle),i=t.clone({mathstyle:e});let s=[];this.numerPrefix&&s.push(Qt(this.numerPrefix));const a=this.continuousFraction?e:e.fracNum();s=s.concat(he(i.clone({mathstyle:a}),this.numer));const o=ee(s,t.mathstyle.adjustTo(a));let n=[];this.denomPrefix&&n.push(Qt(this.denomPrefix));const r=this.continuousFraction?e:e.fracDen();n=n.concat(he(i.clone({mathstyle:r}),this.denom));const l=ee(n,t.mathstyle.adjustTo(r)),c=this.hasBarLine?S.defaultRuleThickness/e.sizeMultiplier:0;let h,d,p;e.size===O.DISPLAY.size?(h=e.metrics.num1,d=c>0?3*c:7*S.defaultRuleThickness,p=e.metrics.denom1):(c>0?(h=e.metrics.num2,d=c):(h=e.metrics.num3,d=3*S.defaultRuleThickness),p=e.metrics.denom2);const m=o?o.depth:0,u=l?l.height:0;let f;if(0===c){const t=h-m-(u-p);t<d&&(h+=.5*(d-t),p+=.5*(d-t)),f=ie(i,[o,-h,l,p],"individualShift")}else{const t=e.metrics.axisHeight;h-m-(t+.5*c)<d&&(h+=d-(h-m-(t+.5*c))),t-.5*c-(u-p)<d&&(p+=d-(t-.5*c-(u-p)));const s=Yt(null," frac-line");s.applyStyle(this.getStyle()),s.height=c;const a=[];o&&(a.push(o),a.push(-h)),a.push(s),a.push(c/2-t),l&&(a.push(l),a.push(p)),f=ie(i,a,"individualShift")}f.classes+=" mfrac",f.height*=e.sizeMultiplier/t.mathstyle.sizeMultiplier,f.depth*=e.sizeMultiplier/t.mathstyle.sizeMultiplier;const g=e.size===O.DISPLAY.size?e.metrics.delim1:e.metrics.delim2,y=Jt.makeCustomSizedDelim("mopen",this.leftDelim,g,!0,t.clone({mathstyle:e})),b=Jt.makeCustomSizedDelim("mclose",this.rightDelim,g,!0,t.clone({mathstyle:e}));return y.applyStyle(this.getStyle()),b.applyStyle(this.getStyle()),Qt([y,f,b],t.parentSize!==t.size?"sizing reset-"+t.parentSize+" "+t.size:"")}decomposeLeftright(t){if(!this.body)return this.leftDelim?new ne("math","mopen",this.leftDelim).decompose(t):this.rightDelim?new ne("math","mclose",this.rightDelim).decompose(t):null;const e=t.clone(),i=he(e,this.body),s=e.mathstyle;let a=0,o=0,n=[];if(a=et.height(i)*s.sizeMultiplier,o=et.depth(i)*s.sizeMultiplier,this.leftDelim&&(n.push(Jt.makeLeftRightDelim("mopen",this.leftDelim,a,o,e)),n[n.length-1].applyStyle(this.getStyle())),i){for(let t=0;t<i.length;t++)if(i[t].delim){const s=i[t].caret,n=/ML__selected/.test(i[t].classes);i[t]=Jt.makeLeftRightDelim("minner",i[t].delim,a,o,e),i[t].caret=s,i[t].selected(n)}n=n.concat(i)}if(this.rightDelim){let t,i=this.rightDelim;"?"===i&&(i=(i={"(":")","\\{":"\\}","\\[":"\\]","\\lbrace":"\\rbrace","\\langle":"\\rangle","\\lfloor":"\\rfloor","\\lceil":"\\rceil","\\vert":"\\vert","\\lvert":"\\rvert","\\Vert":"\\Vert","\\lVert":"\\rVert","\\lbrack":"\\rbrack","\\ulcorner":"\\urcorner","\\llcorner":"\\lrcorner","\\lgroup":"\\rgroup","\\lmoustache":"\\rmoustache"}[this.leftDelim])||this.leftDelim,t="ML__smart-fence__close"),n.push(Jt.makeLeftRightDelim("mclose",i,a,o,e,t)),n[n.length-1].applyStyle(this.getStyle())}return this.inner?te(n,s.cls()):n}decomposeSurd(t){const e=t.mathstyle,i=he(t.cramp(),this.body),s=S.defaultRuleThickness/e.sizeMultiplier;let a=s;e.id<O.TEXT.id&&(a=e.metrics.xHeight);let o=s+a/4;const n=Math.max(2*a,(et.height(i)+et.depth(i))*e.sizeMultiplier)+(o+s),r=Yt(Jt.makeCustomSizedDelim("","\\surd",n,!1,t),"sqrt-sign");r.applyStyle(this.getStyle());const l=r.height+r.depth-s;l>et.height(i)+et.depth(i)+o&&(o=(o+l-(et.height(i)+et.depth(i)))/2),r.setTop(r.height-et.height(i)-(o+s));const c=Yt(null,t.mathstyle.adjustTo(O.TEXT)+" sqrt-line");c.applyStyle(this.getStyle()),c.height=s;const h=ie(t,[i,o,c,s]);if(!this.index)return Qt([r,h],"sqrt");const d=t.clone({mathstyle:O.SCRIPTSCRIPT}),p=Yt(he(d,this.index),e.adjustTo(O.SCRIPTSCRIPT)),m=Math.max(r.height,h.height),u=Math.max(r.depth,h.depth),f=ie(t,[p],"shift",-.6*(m-u));return Qt([Yt(f,"root"),r,h],"sqrt")}decomposeAccent(t){const e=t.mathstyle;let i=he(t.cramp(),this.body);(this.superscript||this.subscript)&&(i=this.attachSupsub(t,Qt(i),"mord"));let s=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(s=et.skew(i));const a=Math.min(et.height(i),e.metrics.xHeight),o=et.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Yt(Yt(o),"accent-body"+n);return(r=ie(t,[i,-a,r])).children[1].setLeft(2*s),Qt(r,"accent")}decomposeLine(t){const e=t.mathstyle,i=he(t.cramp(),this.body),s=S.defaultRuleThickness/e.sizeMultiplier,a=Yt(null,t.mathstyle.adjustTo(O.TEXT)+" "+this.position+"-line");let o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=ie(t,[i,3*s,a,s]);else{const e=Yt(i);o=ie(t,[s,a,3*s,e],"top",et.height(e))}return Qt(o,this.position)}decomposeOverunder(t){const e=he(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?Yt(he(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?Yt(he(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return ce(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Yt(he(t,this.body),"inner");return Qt([e,Yt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Qt("","rule");let s=this.shift&&!isNaN(this.shift)?this.shift:0;s/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return i.setStyle("border-right-width",a,"em"),i.setStyle("border-top-width",o,"em"),i.setStyle("margin-top",-(o-s),"em"),i.setStyle("border-color",t.color),i.width=a,i.height=o+s,i.depth=-s,i}decomposeOp(t){const e=t.mathstyle;let i,s=!1;e.size===O.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(s=!0);let a=0,o=0;if(this.symbol){const n=s?"Size2-Regular":"Size1-Regular";(i=et.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op"))).type="mop",a=(i.height-i.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=i.italic,this.bind(t,i)}else Array.isArray(this.body)?(i=et.makeOp(he(t,this.body)),this.bind(t,i)):i=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const s=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===s||"auto"===s&&e.size===O.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Qt(he(t,this.body)),i=Yt();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:S.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + "+2*s+"em)"):i.setStyle("width","100%"),i.setStyle("top",-s,"em"),i.setStyle("left",-s,"em"),i.setStyle("z-index","-1"),this.backgroundcolor&&i.setStyle("background-color",this.backgroundcolor),this.framecolor&&i.setStyle("border",S.fboxrule+"em solid "+this.framecolor),this.border&&i.setStyle("border",this.border),e.setStyle("display","inline-block"),e.setStyle("height",e.height+e.depth,"em"),e.setStyle("vertical-align",-e.depth+s,"em");const a=Yt([i,e]);return a.setStyle("position","relative"),a.setStyle("vertical-align",-s+e.depth,"em"),a.height=e.height+s,a.depth=e.depth+s,a.setLeft(s),a.setRight(s),a}decomposeEnclose(t){const e=Qt(he(t,this.body)),i="auto"===this.padding?.2:this.padding;e.setStyle("padding",i,"em"),e.setStyle("display","inline-block"),e.setStyle("height",e.height+e.depth,"em"),e.setStyle("left",-i,"em"),this.backgroundcolor&&"transparent"!==this.backgroundcolor&&e.setStyle("background-color",this.backgroundcolor);let s="";if(this.notation.box&&e.setStyle("border",this.borderStyle),this.notation.actuarial&&(e.setStyle("border-top",this.borderStyle),e.setStyle("border-right",this.borderStyle)),this.notation.madruwb&&(e.setStyle("border-bottom",this.borderStyle),e.setStyle("border-right",this.borderStyle)),this.notation.roundedbox&&(e.setStyle("border-radius",(et.height(e)+et.depth(e))/2,"em"),e.setStyle("border",this.borderStyle)),this.notation.circle&&(e.setStyle("border-radius","50%"),e.setStyle("border",this.borderStyle)),this.notation.top&&e.setStyle("border-top",this.borderStyle),this.notation.left&&e.setStyle("border-left",this.borderStyle),this.notation.right&&e.setStyle("border-right",this.borderStyle),this.notation.bottom&&e.setStyle("border-bottom",this.borderStyle),this.notation.horizontalstrike&&(s+='<line x1="3%"  y1="50%" x2="97%" y2="50%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),this.notation.verticalstrike&&(s+='<line x1="50%"  y1="3%" x2="50%" y2="97%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),this.notation.updiagonalstrike&&(s+='<line x1="3%"  y1="97%" x2="97%" y2="3%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),this.notation.downdiagonalstrike&&(s+='<line x1="3%"  y1="3%" x2="97%" y2="97%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),s){let t;return"none"!==this.shadow&&(t="auto"===this.shadow?"filter: drop-shadow(0 0 .5px rgba(255, 255, 255, .7)) drop-shadow(1px 1px 2px #333)":"filter: drop-shadow("+this.shadow+")"),et.makeSVG(e,s,t)}return e}decompose(t,e){let i=null;if(!this.type||/mord|minner|mbin|mrel|mpunct|mopen|mclose|textord/.test(this.type))(i="string"==typeof this.body?this.makeSpan(t,this.body):this.makeSpan(t,he(t,this.body))).type=this.type;else if("group"===this.type||"root"===this.type)i=this.decomposeGroup(t);else if("array"===this.type)i=this.decomposeArray(t);else if("genfrac"===this.type)i=this.decomposeGenfrac(t);else if("surd"===this.type)i=this.decomposeSurd(t);else if("accent"===this.type)i=this.decomposeAccent(t);else if("leftright"===this.type)i=this.decomposeLeftright(t);else if("delim"===this.type)(i=Yt(null,"")).delim=this.delim;else if("sizeddelim"===this.type)i=this.bind(t,Jt.makeSizedDelim(this.cls,this.delim,this.size,t));else if("line"===this.type)i=this.decomposeLine(t);else if("overunder"===this.type)i=this.decomposeOverunder(t);else if("overlap"===this.type)i=this.decomposeOverlap(t);else if("rule"===this.type)i=this.decomposeRule(t);else if("styling"===this.type);else if("msubsup"===this.type)i=Qt("​"),e&&(i.height=e[0].height,i.depth=e[0].depth);else if("mop"===this.type)i=this.decomposeOp(t);else if("space"===this.type)i=this.makeSpan(t," ");else if("spacing"===this.type)if("​"===this.body)i=this.makeSpan(t,"​");else if(" "===this.body)i="math"===this.mode?this.makeSpan(t," "):this.makeSpan(t," ");else if(this.width)i=Yt("​","mspace "),this.width>0?i.setWidth(this.width):i.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";i=Yt("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?i=this.decomposeBox(t):"enclose"===this.type?i=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?((i=this.makeSpan(t,this.body)).classes="",this.error&&(i.classes+=" ML__error"),this.suggestion&&(i.classes+=" ML__suggestion")):"placeholder"===this.type?i=this.makeSpan(t,"⬚"):"first"===this.type&&(i=this.makeSpan(t,"​"));if(!i)return i;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(i)?i[i.length-1].caret=this.caret:i.caret=this.caret),!this.limits&&(this.superscript||this.subscript))if(Array.isArray(i)){const e=i[i.length-1];i[i.length-1]=this.attachSupsub(t,e,e.type)}else i=[this.attachSupsub(t,i,i.type)];return Array.isArray(i)?i:[i]}attachSupsub(t,e,i){if(!this.superscript&&!this.subscript)return e;const s=t.mathstyle;let a=null,o=null;if(this.superscript){const e=he(t.sup(),this.superscript);a=Yt(e,s.adjustTo(s.sup()))}if(this.subscript){const e=he(t.sub(),this.subscript);o=Yt(e,s.adjustTo(s.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=et.height(e)-s.metrics.supDrop,l=et.depth(e)+s.metrics.subDrop),n=s===O.DISPLAY?s.metrics.sup1:s.cramped?s.metrics.sup3:s.metrics.sup2;const c=O.TEXT.sizeMultiplier*s.sizeMultiplier,h=.5/S.ptPerEm/c;let d=null;if(o&&a){r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),l=Math.max(l,s.metrics.sub2);const i=S.defaultRuleThickness;if(r-et.depth(a)-(et.height(o)-l)<4*i){l=4*i-(r-a.depth)+et.height(o);const t=.8*s.metrics.xHeight-(r-et.depth(a));t>0&&(r+=t,l-=t)}d=ie(t,[o,l,a,-r],"individualShift"),this.symbol&&d.children[0].setLeft(-et.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,et.height(o)-.8*s.metrics.xHeight),(d=ie(t,[o],"shift",l)).children[0].setRight(h),this.isCharacterBox()&&d.children[0].setLeft(-et.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),(d=ie(t,[a],"shift",-r)).children[0].setRight(h));const p=Yt(d,"msubsup");return this.caret&&(p.caret=this.caret),et.makeSpanOfType(i,[e,p])}attachLimits(t,e,i,s){const a=this.superscript?Yt(he(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Yt(he(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return ce(t,e,i,s,a,o,"mop")}bind(t,e){return"first"!==this.type&&"​"!==this.body&&(this.id=function(t){let e;return"boolean"==typeof t.generateID&&t.generateID?e=Date.now().toString(36).slice(-2)+Math.floor(1e5*Math.random()).toString(36):"boolean"!=typeof t.generateID&&(t.generateID.overrideID?e=t.generateID.overrideID:(e=t.generateID.seed.toString(36),t.generateID.seed+=1)),e}(t),this.id&&(e.attributes||(e.attributes={}),e.attributes["data-atom-id"]=this.id)),e}makeSpan(t,e){const i="textord"===this.type?"mord":this.type,s=et.makeSpanOfType(i,e),a=this.getStyle();s.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(s.classes+=" sizing reset-"+t.parentSize,s.classes+=" "+o):t.parentSize!==t.size&&(s.classes+=" sizing reset-"+t.parentSize,s.classes+=" "+t.size),s.maxFontSize=Math.max(s.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(s.classes+=" ML__text"),t.mathstyle.isTight()&&(s.isTight=!0),"math"!==this.mode&&(s.italic=0),s.setRight(s.italic),"number"==typeof t.opacity&&s.setStyle("opacity",t.opacity),this.bind(t,s),this.caret&&(this.superscript||this.subscript||(s.caret=this.caret,t.mathstyle.isTight()&&(s.isTight=!0))),s}}function re(t){const e=Yt("​","arraycolsep");return e.setWidth(t,"em"),e}function le(t,e,i,s){const a=[];for(const o of e){const e=Yt(he(t,s));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-i)}return ie(t,a,"individualShift")}function ce(t,e,i,s,a,o,n){if(!a&&!o)return e;e=Yt(e);let r=0,l=0;a&&(r=Math.max(S.bigOpSpacing1,S.bigOpSpacing3-a.depth)),o&&(l=Math.max(S.bigOpSpacing2,S.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=S.bigOpSpacing5+et.height(o)+et.depth(o)+l+et.depth(e)+i;(c=ie(t,[S.bigOpSpacing5,o,l,e,r,a,S.bigOpSpacing5],"bottom",n)).children[0].setLeft(-s),c.children[2].setLeft(s)}else if(o&&!a){const a=et.height(e)-i;(c=ie(t,[S.bigOpSpacing5,o,l,e],"top",a)).children[0].setLeft(-s)}else if(!o&&a){const o=et.depth(e)+i;(c=ie(t,[e,r,a,S.bigOpSpacing5],"bottom",o)).children[1].setLeft(s)}return et.makeSpanOfType(n,c,"op-limits")}function he(t,e){t instanceof K.Context||(t=new K.Context(t));const i=!t.generateID||!t.generateID.groupNumbers;let s=[];if(Array.isArray(e)){if(0===e.length)return s;if(1===e.length)(s=e[0].decompose(t))&&i&&e[0].isSelected&&s.forEach(t=>t.selected(!0));else{let a="none",o=e[1].type,n=[],r=null,l=null;for(let c=0;c<e.length;c++){"mbin"===e[c].type&&(/first|none|mrel|mpunct|mopen|mbin|mop/.test(a)||/none|mrel|mpunct|mclose/.test(o))&&(e[c].type="mord"),"​"===e[c].body&&(e[c].superscript||e[c].subscript)||(l=null),t.generateID.groupNumbers&&r&&"mord"===e[c].type&&/[0-9,.]/.test(e[c].latex)&&(t.generateID.overrideID=r);const h=e[c].decompose(t,l);if(t.generateID&&(t.generateID.overrideID=null),h){const a=[].concat.apply([],h);l=a,t.generateID&&t.generateID.groupNumbers&&("mord"===e[c].type&&/[0-9,.]/.test(e[c].latex)&&(r||(r=e[c].id)),("mord"!==e[c].type||/[0-9,.]/.test(e[c].latex)||e[c].superscript||e[c].subscript)&&r&&(r=null)),i&&e[c].isSelected?(n=n.concat(a)).forEach(t=>t.selected(!0)):(n.length>0&&(s=[...s,...n],n=[]),s=s.concat(a))}a=e[c].getFinalBaseElement().type,o=e[c+1]?e[c+1].getInitialBaseElement().type:"none"}n.length>0&&(s=[...s,...n],n=[])}}else e&&(s=e.decompose(t))&&i&&e.isSelected&&s.forEach(t=>t.selected(!0));if(!s||0===s.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of s)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=oe[t.size]/oe[t.parentSize];for(const t of s)t.height*=e,t.depth*=e}return s}var de={MathAtom:ne,decompose:he,makeRoot:function(t,e){const i=new ne(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new ne("","first")),i},GREEK_REGEX:se};const pe={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},me={apricot:"#FBB982",aquamarine:"#00B5BE",bittersweet:"#C04F17",black:"#221E1F",blue:"#2D2F92",bluegreen:"#00B3B8",blueviolet:"#473992",brickred:"#B6321C",brown:"#792500",burntorange:"#F7921D",cadetblue:"#74729A",carnationpink:"#F282B4",cerulean:"#00A2E3",cornflowerblue:"#41B0E4",cyan:"#00AEEF",dandelion:"#FDBC42",darkorchid:"#A4538A",emerald:"#00A99D",forestgreen:"#009B55",fuchsia:"#8C368C",goldenrod:"#FFDF42",gray:"#949698",green:"#00A64F",greenyellow:"#DFE674",junglegreen:"#00A99A",lavender:"#F49EC4",limegreen:"#8DC73E",magenta:"#EC008C",mahogany:"#A9341F",maroon:"#AF3235",melon:"#F89E7B",midnightblue:"#006795",mulberry:"#A93C93",navyblue:"#006EB8",olivegreen:"#3C8031",orange:"#F58137",orangered:"#ED135A",orchid:"#AF72B0",peach:"#F7965A",periwinkle:"#7977B8",pinegreen:"#008B72",plum:"#92268F",processblue:"#00B0F0",purple:"#99479B",rawsienna:"#974006",red:"#ED1B23",redorange:"#F26035",redviolet:"#A1246B",rhodamine:"#EF559F",royalblue:"#0071BC",royalpurple:"#613F99",rubinered:"#ED017D",salmon:"#F69289",seagreen:"#3FBC9D",sepia:"#671800",skyblue:"#46C5DD",springgreen:"#C6DC67",tan:"#DA9D76",tealblue:"#00AEB3",thistle:"#D883B7",turquoise:"#00B4CE",violet:"#58429B",violetred:"#EF58A0",white:"#FFFFFF",wildstrawberry:"#EE2967",yellow:"#FFF200",yellowgreen:"#98CC70",yelloworange:"#FAA21A"};var ue={stringToColor:function(t){const e=t.toLowerCase().split("!");let i,s,a,o=255,n=255,r=255,l=-1;const c=e.length>0&&"-"===e[0].charAt(0);c&&(e[0]=e[0].slice(1));for(let t=0;t<e.length;t++){i=o,s=n,a=r;let c=e[t].match(/([a-z0-9]*)/);c&&(c=c[1]);let h=me[c]||pe[c];h||(h=e[t]);let d=h.match(/^#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i);if(d&&d[1]&&d[2]&&d[3])o=Math.max(0,Math.min(255,parseInt(d[1],16))),n=Math.max(0,Math.min(255,parseInt(d[2],16))),r=Math.max(0,Math.min(255,parseInt(d[3],16)));else if((d=h.match(/^#([0-9a-f]{3})$/i))&&d[1]){const t=parseInt(d[1][0],16),e=parseInt(d[1][1],16),i=parseInt(d[1][2],16);o=Math.max(0,Math.min(255,16*t+t)),n=Math.max(0,Math.min(255,16*e+e)),r=Math.max(0,Math.min(255,16*i+i))}else{if(!((d=h.match(/^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i))&&d[1]&&d[2]&&d[3]))return null;o=Math.max(0,Math.min(255,parseInt(d[1]))),n=Math.max(0,Math.min(255,parseInt(d[2]))),r=Math.max(0,Math.min(255,parseInt(d[3])))}l>=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1<e.length&&(l=Math.max(0,Math.min(100,parseInt(e[++t])))/100)}return l>=0&&(o=l*o+(1-l)*i,n=l*n+(1-l)*s,r=l*r+(1-l)*a),c&&(o=255-o,n=255-n,r=255-r),"#"+("00"+Math.round(o).toString(16)).slice(-2)+("00"+Math.round(n).toString(16)).slice(-2)+("00"+Math.round(r).toString(16)).slice(-2)},colorToString:function(t){let e=t.toUpperCase();for(const t in me)if(me[t]===e){e=t;break}for(const t in pe)if(pe[t]===e){e=t;break}return e},AREA_COLORS:["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],LINE_COLORS:["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"]};const fe=de.MathAtom;class ge{constructor(t,e,i){this.tokens=t,this.index=0,this.args=e,this.macros=i,this.mathList=[],this.style={},this.parseMode="math",this.tabularMode=!1,this.endCount=0}swapMathList(t){const e=this.mathList;return this.mathList=t||[],e}swapParseMode(t){const e=this.parseMode;return this.parseMode=t,e}end(){return this.endCount++,this.index>=this.tokens.length||this.endCount>1e3}get(){return this.endCount=0,this.index<this.tokens.length?this.tokens[this.index++]:null}peek(t){const e=this.index+(t||0);return e<this.tokens.length?this.tokens[e]:null}lastMathAtom(){const t=0===this.mathList.length?"none":this.mathList[this.mathList.length-1].type;if("mop"!==t&&"msubsup"!==t){const t=new fe(this.parseMode,"msubsup","​");t.attributes={"aria-hidden":!0},this.mathList.push(t)}return this.mathList[this.mathList.length-1]}hasToken(t){const e=this.index;return e<this.tokens.length&&this.tokens[e].type===t}hasLiteral(t){const e=this.index;return e<this.tokens.length&&"literal"===this.tokens[e].type&&(!t||this.tokens[e].value===t)}hasLiteralPattern(t){return this.hasToken("literal")&&t.test(this.tokens[this.index].value)}hasCommand(t){const e=this.index;return e<this.tokens.length&&"command"===this.tokens[e].type&&this.tokens[e].value===t}hasInfixCommand(){const t=this.index;if(t<this.tokens.length&&"command"===this.tokens[t].type){const e=Pt.getInfo("\\"+this.tokens[t].value,this.parseMode,this.macros);return e&&e.infix}return!1}hasColumnSeparator(){const t=this.index;return!!(this.tabularMode&&t<this.tokens.length)&&"literal"===this.tokens[t].type&&"&"===this.tokens[t].value}hasRowSeparator(){const t=this.index;return!!(this.tabularMode&&t<this.tokens.length)&&"command"===this.tokens[t].type&&("\\"===this.tokens[t].value||"cr"===this.tokens[t].value)}parseColumnSeparator(){return!!this.hasColumnSeparator()&&(this.index++,!0)}placeholder(){if(this.args&&"string"==typeof this.args["?"])return ye(x.tokenize(this.args["?"]),this.parseMode,null,this.macros);const t=new fe(this.parseMode,"placeholder","?",this.style);return t.captureSelection=!0,[t]}hasImplicitCommand(t){if(this.index<this.tokens.length){const e=this.tokens[this.index];if("command"===e.type)return t.includes(e.value)}return!1}parseRowSeparator(){return!!this.hasRowSeparator()&&(this.index++,!0)}parseToken(t){return!!this.hasToken(t)&&(this.index++,!0)}skipWhitespace(){let t=!1;for(;this.hasToken("space");)this.index++,t=!0;return t}skipUntilToken(t){for(;!this.end()&&!this.parseToken(t);)this.get()}parseCommand(t){return!!this.hasCommand(t)&&(this.index++,!0)}parseLiteral(t){return!!this.hasLiteral(t)&&(this.index++,!0)}parseFiller(){let t=!1,e=!1;do{const i=this.skipWhitespace(),s=this.parseCommand("relax");t=t||i||s,e=!i&&!s}while(!e);return t}parseKeyword(t){const e=this.index;let i=this.end(),s="";for(;!i;){const e=this.get();"literal"===e.type&&(s+=e.value),i=this.end()||"literal"!==e.type||s.length>=t.length}const a=t.toUpperCase()===s.toUpperCase();return a||(this.index=e),a}scanString(){let t="",e=this.end();for(;!e;){if(this.hasLiteral("]"))e=!0;else if(this.hasToken("literal"))t+=this.get().value;else if(this.skipWhitespace())t+=" ";else if(this.hasToken("command")){const e=this.get();"space"===e.value?t+=" ":t+=e.value}else e=!0;e=e||this.end()}return t}scanColor(){return ue.stringToColor(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let i=10,s=/[0-9]/;this.parseLiteral("'")?(i=8,s=/[0-7]/,t=!0):(this.parseLiteral('"')||this.parseLiteral("x"))&&(i=16,s=/[0-9A-F]/,t=!0);let a="";for(;this.hasLiteralPattern(s);)a+=this.get().value;if(!t&&(this.parseLiteral(".")||this.parseLiteral(",")))for(a+=".";this.hasLiteralPattern(s);)a+=this.get().value;const o=t?parseInt(a,i):parseFloat(a);return e?-o:o}scanDimen(){const t=this.scanNumber(!1);return this.skipWhitespace(),this.parseKeyword("pt")?M.toEm(t,"pt"):this.parseKeyword("mm")?M.toEm(t,"mm"):this.parseKeyword("cm")?M.toEm(t,"cm"):this.parseKeyword("ex")?M.toEm(t,"ex"):this.parseKeyword("px")?M.toEm(t,"px"):this.parseKeyword("em")?M.toEm(t,"em"):this.parseKeyword("bp")?M.toEm(t,"bp"):this.parseKeyword("dd")?M.toEm(t,"dd"):this.parseKeyword("pc")?M.toEm(t,"pc"):this.parseKeyword("in")?M.toEm(t,"in"):this.parseKeyword("mu")?M.toEm(t,"mu"):M.toEm(t,"pt")}scanSkip(){const t=this.scanDimen();return this.skipWhitespace(),this.parseKeyword("plus")&&this.scanDimen(),this.skipWhitespace(),this.parseKeyword("minus")&&this.scanDimen(),t}scanColspec(){this.skipWhitespace();const t=[];for(;!this.end()&&!this.hasToken("}")&&!this.hasLiteral("]");)if(this.hasLiteral()){const e=this.get().value;if("lcr".includes(e))t.push({align:e});else if("|"===e)t.push({rule:!0});else if("@"===e){if(this.parseToken("{")){const e=this.swapParseMode("math");t.push({gap:this.scanImplicitGroup(t=>"}"===t.type)}),this.swapParseMode(e)}this.parseToken("}")}}return t}scanModeSet(){let t;if(this.parseCommand("(")&&(t=")"),!t&&this.parseCommand("[")&&(t="]"),!t)return null;const e=this.swapParseMode("math"),i=new fe("math","group");return i.mathstyle=")"===t?"textstyle":"displaystyle",i.body=this.scanImplicitGroup(e=>"command"===e.type&&e.value===t),this.parseCommand(t),this.swapParseMode(e),i.body&&0!==i.body.length?i:null}scanModeShift(){if(!this.hasToken("$")&&!this.hasToken("$$"))return null;const t=this.get().type,e=new fe("math","group");e.mathstyle="$"===t?"textstyle":"displaystyle",e.latexOpen="textstyle"===e.mathstyle?"$":"$$",e.latexClose=e.latexOpen;const i=this.swapParseMode("math");return e.body=this.scanImplicitGroup(e=>e.type===t),this.parseToken(t),this.swapParseMode(i),e.body&&0!==e.body.length?e:null}scanEnvironment(){if(!this.parseCommand("begin"))return null;const t=this.scanArg("string"),e=Pt.getEnvironmentInfo(t),i=[];if(e&&e.params)for(const t of e.params)if(t.optional){const e=this.scanOptionalArg(t.type);i.push(e)}else i.push(this.scanArg(t.type));const s=this.parseMode,a=this.tabularMode,o=this.swapMathList([]);this.tabularMode=e.tabular;const n=[],r=[];let l=[],c=!1;do{if(!(c=this.end())&&this.parseCommand("end")&&(c=this.scanArg("string")===t),!c)if(this.parseColumnSeparator())l.push(this.swapMathList([]));else if(this.parseRowSeparator()){l.push(this.swapMathList([]));let t=0;this.skipWhitespace(),this.parseLiteral("[")&&(t=this.scanDimen(),this.skipWhitespace(),this.parseLiteral("]")),r.push(t||0),n.push(l),l=[]}else this.mathList=this.mathList.concat(this.scanImplicitGroup())}while(!c);l.push(this.swapMathList([])),l.length>0&&n.push(l);const h=this.swapMathList(o);if(this.parseMode=s,this.tabularMode=a,!e.tabular&&0===h.length)return null;if(e.tabular&&0===n.length)return null;const d=new fe(this.parseMode,"array",h,e.parser?e.parser(t,i,n):{});return d.array=n,d.rowGaps=r,d.env={...e},d.env.name=t,d}scanImplicitGroup(t){const e=this.style;t||(t=(t=>"}"===t.type||"literal"===t.type&&"&"===t.value||"command"===t.type&&/^(end|cr|\\)$/.test(t.value)));let i=null,s=null;const a=this.swapMathList([]);for(;!this.end()&&!t(this.peek());)if(this.hasImplicitCommand(["displaystyle","textstyle","scriptstyle","scriptscriptstyle"])){this.parseMode="math";const t=new fe("math","mathstyle");t.mathstyle=this.get().value,this.mathList.push(t)}else this.hasInfixCommand()&&!i?(i=this.get(),s=this.swapMathList([])):this.parseAtom();let o;if(i){const t=this.swapMathList(a),e=Pt.getInfo("\\"+i.value,"math",this.macros);o=e?[new fe(this.parseMode,e.type,e.value||i.value,e.parse?e.parse("\\"+i.value,[s,t]):null)]:[new fe(this.parseMode,"mop",i.value)]}else o=this.swapMathList(a);return this.style=e,o}scanGroup(){if(!this.parseToken("{"))return null;const t=new fe(this.parseMode,"group");return t.body=this.scanImplicitGroup(t=>"}"===t.type),this.parseToken("}"),t.latexOpen="{",t.latexClose="}",t}scanSmartFence(){if(this.skipWhitespace(),!this.parseLiteral("("))return null;const t=new fe(this.parseMode,"leftright");t.leftDelim="(",t.inner=!1;const e=this.swapMathList([]);let i=1;for(;!this.end()&&0!==i;)this.hasLiteral("(")&&(i+=1),this.hasLiteral(")")&&(i-=1),0!==i&&this.parseAtom();return 0===i&&this.parseLiteral(")"),t.rightDelim=0===i?")":"?",t.body=this.swapMathList(e),t}scanDelim(){this.skipWhitespace();const t=this.get();if(!t)return null;let e=".";"command"===t.type?e="\\"+t.value:"literal"===t.type&&(e=t.value);const i=Pt.getInfo(e,"math",this.macros);return i?"mopen"===i.type||"mclose"===i.type?e:/^(\?|\||<|>|\\vert|\\Vert|\\\||\\surd|\\uparrow|\\downarrow|\\Uparrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\mid|\\mvert|\\mVert)$/.test(e)?e:null:null}scanLeftRight(){if(this.parseCommand("right")||this.parseCommand("mright")){const t=new fe(this.parseMode,"leftright");return t.rightDelim=this.scanDelim()||".",t}const t=this.style;let e="right";if(!this.parseCommand("left")){if(!this.parseCommand("mleft"))return null;e="mright"}const i=this.scanDelim()||".",s=this.swapMathList([]);for(;!this.end()&&!this.parseCommand(e);)this.parseAtom();this.style=t;const a=this.scanDelim(),o=new fe(this.parseMode,"leftright");return o.leftDelim=i,o.rightDelim=a,o.inner="right"===e,o.body=this.swapMathList(s),o}parseSupSub(){if("math"!==this.parseMode)return!1;let t=!1;for(;this.hasLiteral("^")||this.hasLiteral("_")||this.hasLiteral("'");){let e;if(this.hasLiteral("^")?e="superscript":this.hasLiteral("_")&&(e="subscript"),this.parseLiteral("^")||this.parseLiteral("_")){const i=this.scanArg();if(i){const s=this.lastMathAtom();s[e]=s[e]||[],s[e]=s[e].concat(i),t=!0}}else if(this.parseLiteral("'")){const e=this.lastMathAtom();e.superscript=e.superscript||[],e.superscript.push(new fe(e.parseMode,"mord","′")),t=!0}}return t}parseLimits(){if(this.parseCommand("limits")){const t=this.lastMathAtom();return t.limits="limits",t.explicitLimits=!0,!0}if(this.parseCommand("nolimits")){const t=this.lastMathAtom();return t.limits="nolimits",t.explicitLimits=!0,!0}return!1}scanOptionalArg(t){if(t=t&&"auto"!==t?t:this.parseMode,this.skipWhitespace(),!this.parseLiteral("["))return null;const e=this.parseMode;this.parseMode=t;const i=this.swapMathList();let s;for(;!this.end()&&!this.parseLiteral("]");)if("string"===t)s=this.scanString();else if("number"===t)s=this.scanNumber();else if("dimen"===t)s=this.scanDimen();else if("skip"===t)s=this.scanSkip();else if("colspec"===t)s=this.scanColspec();else if("color"===t)s=this.scanColor()||"#ffffff";else if("bbox"===t){const t=this.scanString().toLowerCase().trim().split(/,(?![^(]*\)(?:(?:[^(]*\)){2})*[^"]*$)/);for(const e of t){const t=ue.stringToColor(e);if(t)(s=s||{}).backgroundcolor=t;else{const t=e.match(/^\s*([0-9.]+)\s*([a-z][a-z])/);if(t)(s=s||{}).padding=M.toEm(t[1],t[2]);else{const t=e.match(/^\s*border\s*:\s*(.*)/);t&&((s=s||{}).border=t[1])}}}}else this.mathList=this.mathList.concat(this.scanImplicitGroup(t=>"literal"===t.type&&"]"===t.value));this.parseMode=e;const a=this.swapMathList(i);return s||a}scanArg(t){let e;if(t=t&&"auto"!==t?t:this.parseMode,this.parseFiller(),!this.parseToken("{")){if("delim"===t)return this.scanDelim()||".";if(/^(math|text)$/.test(t)){const e=this.parseMode;this.parseMode=t;const i=this.scanToken();return this.parseMode=e,Array.isArray(i)?i:i?[i]:null}}if(this.hasToken("#")){const t=this.get();return this.skipUntilToken("}"),"?"===t.value?this.placeholder():this.args?void 0===this.args[t.value]&&void 0!==this.args["?"]?this.placeholder():this.args[t.value]||null:null}const i=this.parseMode;this.parseMode=t;const s=this.swapMathList([]);if("string"===t)e=this.scanString(),this.skipUntilToken("}");else if("number"===t)e=this.scanNumber(),this.skipUntilToken("}");else if("dimen"===t)e=this.scanDimen(),this.skipUntilToken("}");else if("skip"===t)e=this.scanSkip(),this.skipUntilToken("}");else if("colspec"===t)e=this.scanColspec(),this.skipUntilToken("}");else if("color"===t)e=this.scanColor()||"#ffffff",this.skipUntilToken("}");else if("delim"===t)e=this.scanDelim()||".",this.skipUntilToken("}");else do{this.mathList=this.mathList.concat(this.scanImplicitGroup())}while(!this.parseToken("}")&&!this.end());this.parseMode=i;const a=this.swapMathList(s);return e||a}scanToken(){const t=this.get();if(!t)return null;let e=null;if("space"===t.type)"text"===this.parseMode&&(e=new fe("text",""," ",this.style));else if("placeholder"===t.type)(e=new fe(this.parseMode,"placeholder",t.value)).captureSelection=!0;else if("command"===t.type){if("placeholder"===t.value)(e=new fe(this.parseMode,"placeholder",this.scanArg("string"),this.style)).captureSelection=!0;else if("char"===t.value){let t=Math.floor(this.scanNumber(!0));(!isFinite(t)||t<0||t>1114111)&&(t=10067),(e=new fe(this.parseMode,"math"===this.parseMode?"mord":"",String.fromCodePoint(t))).latex='{\\char"'+("000000"+t.toString(16)).toUpperCase().substr(-6)+"}"}else if("hskip"===t.value||"kern"===t.value){const i=this.scanSkip();isFinite(i)&&((e=new fe(this.parseMode,"spacing",null,this.style)).width=i),e.latex="\\"+t.value}else if(!(e=this.scanMacro(t.value))){const i=Pt.getInfo("\\"+t.value,this.parseMode,this.macros),s=[];let a="",o="";if(i&&i.params)for(const t of i.params)if(t.optional){const e=this.scanOptionalArg(t.type);s.push(e)}else if(t.type.endsWith("*"))o=t.type.slice(0,-1);else{const e=this.scanArg(t.type);if(e&&1===e.length&&"placeholder"===e[0].type&&t.placeholder&&(e[0].value=t.placeholder),e)s.push(e);else if(t.placeholder){const e=new fe(this.parseMode,"placeholder",t.placeholder);e.captureSelection=!0,s.push([e])}else s.push(this.placeholder());"math"!==t.type&&"string"==typeof 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s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},Fe.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=Pe(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e<t;){if(qe(this.parent().array,e)&&this.setSelection(0,0,"cell"+e))return void this.selectionDidChange();e+=1}}if(1===this.path.length)(this.suppressChangeNotifications||!this.config.onMoveOutOf||this.config.onMoveOutOf(this,"forward"))&&(this.path[0].offset=0);else{const e=!t.iterateAll&&this.parent().skipBoundary;this.path.pop(),e&&this.next(t)}return void this.selectionDidChange()}this.setSelection(this.anchorOffset()+1);const i=this.anchor();if(i&&!i.captureSelection){let s;if(i.array){let t=0;s="";const e=Pe(i.array);for(;!s&&t<e;)qe(i.array,t)&&(s="cell"+t.toString()),t+=1;return this.path.push({relation:s,offset:0}),void this.setSelection(0,0,s)}for(s="body";s;){if(Array.isArray(i[s]))return this.path.push({relation:s,offset:0}),this.insertFirstAtom(),void(!t.iterateAll&&i.skipBoundary&&this.next(t));s=e[s]}}},Fe.prototype.previous=function(t){const e={numer:"body",denom:"numer",index:"denom",overscript:"index",underscript:"overscript",subscript:"underscript",superscript:"subscript"};if(!(t=t||{}).iterateAll&&1===this.anchorOffset()&&this.parent()&&this.parent().skipBoundary&&this.setSelection(0),this.anchorOffset()<1){let t=e[this.relation()];for(;t&&!this.setSelection(-1,0,t);)t=e[t];const i=this.parent()?this.parent().type:"none";if("body"!==t||"msubsup"!==i&&"mop"!==i||(t=null),t)return;if(this.adjustPlaceholder(),this.selectionWillChange(),this.relation().startsWith("cell")){let t=parseInt(this.relation().match(/cell([0-9]*)$/)[1])-1;for(;t>=0;){if(qe(this.parent().array,t)&&this.setSelection(-1,0,"cell"+t))return void this.selectionDidChange();t-=1}}return 1===this.path.length?(this.suppressChangeNotifications||!this.config.onMoveOutOf||this.config.onMoveOutOf.bind(this)(-1))&&(this.path[0].offset=this.root.body.length-1):(this.path.pop(),this.setSelection(this.anchorOffset()-1)),void this.selectionDidChange()}const i=this.anchor();if(!i.captureSelection){let t;if(i.array){t="";const e=Pe(i.array);let s=e-1;for(;!t&&s<e;)qe(i.array,s)&&(t="cell"+s.toString()),s-=1;return s+=1,this.path.push({relation:t,offset:qe(i.array,s).length-1}),void this.setSelection(-1,0,t)}for(t="superscript";t;){if(Array.isArray(i[t]))return this.path.push({relation:t,offset:i[t].length-1}),void this.setSelection(-1,0,t);t=e[t]}}this.setSelection(this.anchorOffset()-1),!t.iterateAll&&this.sibling(0)&&this.sibling(0).skipBoundary&&this.previous(t)},Fe.prototype.move=function(t,e){const i=(e=e||{extend:!1}).extend||!1;if(this.removeSuggestion(),i)this.extend(t,e);else{const e=ze(this);if(t>0)for(this.collapseForward()&&t--;t>0;)this.next(),t--;else if(t<0)for(this.collapseBackward()&&t++;0!==t;)this.previous(),t++;this._announce("move",e)}},Fe.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const i=this.relation();if("denom"===i)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"numer"),this._announce("moveUp");else if(this.parent().array){let e=Ee(this.parent().array,i);(e=Be(this.parent().array,e,-1))&&qe(e)?(this.path[this.path.length-1].relation="cell"+De(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},Fe.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const i=this.relation();if("numer"===i)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"denom"),this._announce("moveDown");else if(this.parent().array){let e=Ee(this.parent().array,i);(e=Be(this.parent().array,e,1))&&qe(e)?(this.path[this.path.length-1].relation="cell"+De(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},Fe.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=ze(this),a=e+(i=this.extent+t);if(a<0&&0!==i){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",s);e=this.path[this.path.length-1].offset,i=this.extent}else if(a>=this.siblings().length){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange(),void this._announce("move",s);this.isCollapsed()&&(e-=1),i-=1}this.setSelection(e,i),this._announce("move",s)},Fe.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=ze(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(i&&(n=Math.min(Math.max(0,n),a.length-1)),n<0||n>=a.length)this.move(t,e);else{if(a[n]&&"text"===a[n].mode){if((n=this.wordBoundaryOffset(n,t))<0&&!i)return void this.setSelection(0);if(n>a.length)return this.setSelection(a.length-1),void this.move(t,e)}else{const e=a[n]?a[n].type:"";if("mopen"===e&&t>0||"mclose"===e&&t<0){let i="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n<a.length&&0!==i;)"mopen"===a[n].type?i+=1:"mclose"===a[n].type&&(i-=1),n+=t;0!==i&&(n=o+t),t>0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(i){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",s)}},Fe.prototype.jump=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,s.length-1));const o=t<0?0:s.length-1;i?this.extend(o-a):this.move(o-a)},Fe.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=ze(this),a=[{relation:"body",offset:this.path[0].offset}];let o;i?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset<this.siblings().length-1&&(o=this.siblings().length-1-a[0].offset):(a[0].offset=t<0?0:this.root.body.length-1,o=0),this.setPath(a,o),this._announce("move",s)},Fe.prototype.leap=function(t,e){t=(t=t||1)<0?-1:1,e=e||!0;const i=this.suppressChangeNotifications;this.suppressChangeNotifications=!0;const s=ze(this),a=this.extent;this.move(t),"placeholder"===this.anchor().type&&this.move(t);const o=this.filter((t,e)=>"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(s,a),e)if(this.config.onTabOutOf)this.config.onTabOutOf(this.target,t>0?"forward":"backward");else if(document.activeElement){const e='a[href]:not([disabled]),\n                    button:not([disabled]),\n                    textarea:not([disabled]),\n                    input[type=text]:not([disabled]),\n                    select:not([disabled]),\n                    [contentEditable="true"],\n                    [tabindex]:not([disabled]):not([tabindex="-1"])',i=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let s=i.indexOf(document.activeElement)+t;s<0&&(s=i.length-1),s>=i.length&&(s=0),i[s].focus()}return!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",s),this.selectionDidChange(),this.suppressChangeNotifications=i,!0},Fe.prototype.anchorMode=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t){if("commandliteral"===t.type||"command"===t.type)return"command";e=t.mode}let i=1,s=this.ancestor(i);for(;!e&&s;)s&&(e=s.mode),i+=1,s=this.ancestor(i);return e},Fe.prototype.anchorStyle=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t&&"first"!==t.type){if("commandliteral"===t.type||"command"===t.type)return{};e={color:t.color,backgroundColor:t.backgroundColor,fontFamily:t.fontFamily,fontShape:t.fontShape,fontSeries:t.fontSeries,fontSize:t.fontSize}}let i=1,s=this.ancestor(i);for(;!e&&s;)s&&(e={color:s.color,backgroundColor:s.backgroundColor,fontFamily:s.fontFamily,fontShape:s.fontShape,fontSeries:s.fontSeries,fontSize:s.fontSize}),i+=1,s=this.ancestor(i);return e},Fe.prototype.simplifyParen=function(t){if(t&&this.config.removeExtraneousParentheses){for(let e=0;t[e];e++)if("leftright"===t[e].type&&"("===t[e].leftDelim&&Array.isArray(t[e].body)){let i=0,s=0,a=0;for(let o=0;t[e].body;o++)"genfrac"===t[e].body[o].type&&(i++,s=o),"first"!==t[e].body[o].type&&a++;0===a&&1===i&&(t[e]=t[e].body[s])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=Ke(t.numer),t.denom=Ke(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Ke(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Ke(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Ke(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Ke(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Ke(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Ke(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Pe(t.array);e>=0;e--)this.simplifyParen(qe(t.array,e))})}},Fe.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const i=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const s=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,e.insertionMode||(e.insertionMode="replaceSelection"),e.selectionMode||(e.selectionMode="placeholder"),e.format||(e.format="auto"),e.macros=e.macros||this.config.macros;const a=e.mode||this.anchorMode();let o;const n=[this.getSelectedAtoms()];void 0!==e.placeholder&&(n["?"]=e.placeholder),"replaceSelection"!==e.insertionMode||this.isCollapsed()?"replaceAll"===e.insertionMode?(this.root.body.splice(1),this.path=[{relation:"body",offset:0}],this.extent=0):"insertBefore"===e.insertionMode?this.collapseBackward():"insertAfter"===e.insertionMode&&this.collapseForward():this.delete_();const r=this.siblings(),l=this.startOffset();if(l+1<r.length&&r[l+1]&&"placeholder"===r[l+1].type?this.delete_(1):l>0&&r[l]&&"placeholder"===r[l].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ne(t,{...this.config,format:"ASCIIMath"}),o=be.parseTokens(x.tokenize(t),"math",null,e.macros,!1),this.simplifyParen(o);else if("text"!==a&&"auto"===e.format)if("command"===a){o=[];for(const e of t)Pt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new de.MathAtom("command","command",e))}else""===t?o=[new de.MathAtom("command","command","\\")]:(t=Ne(t,this.config),n[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),n[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-n[0].length),Array.isArray(n[0])&&0===n[0].length&&(n[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=be.parseTokens(x.tokenize(t),a,n,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=be.parseTokens(x.tokenize(t),a,n,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=be.parseTokens(x.tokenize(t),"text",n,e.macros,!1));!function t(e,i){e&&i&&(Array.isArray(e)?e.forEach(e=>t(e,i)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(i),t(e.body,i),t(e.numer,i),t(e.denom,i),t(e.index,i),t(e.overscript,i),t(e.underscript,i),t(e.subscript,i),t(e.superscript,i))))}(o,e.style);const c=this.parent();if(this.config.removeExtraneousParentheses&&c&&"leftright"===c.type&&"("===c.leftDelim&&o&&1===o.length&&"genfrac"===o[0].type?(this.path.pop(),this.siblings()[this.anchorOffset()]=o[0]):Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(o)),this.insertFirstAtom(),this.suppressChangeNotifications=s,"placeholder"===e.selectionMode){let t=[];for(const e of o)t=t.concat(e.filter(t=>"placeholder"===t.type));0!==t.length&&this.leap(1,!1)?this._announce("move"):this.setSelection(this.anchorOffset()+o.length)}else"before"===e.selectionMode||("after"===e.selectionMode?this.setSelection(this.anchorOffset()+o.length):"item"===e.selectionMode&&this.setSelection(this.anchorOffset(),o.length));this.contentDidChange(),this.suppressChangeNotifications=i},Fe.prototype._insertSmartFence=function(t,e){const i=this.parent();if("leftright"===i.type&&"|"!==i.leftDelim&&/\||\\vert|\\Vert|\\mvert|\\mid/.test(t))return this.insert("\\,\\middle"+t+"\\, ",{mode:"math",format:"latex",style:e}),!0;"{"!==t&&"\\{"!==t||(t="\\lbrace"),"}"!==t&&"\\}"!==t||(t="\\rbrace"),"["!==t&&"\\["!==t||(t="\\lbrack"),"]"!==t&&"\\]"!==t||(t="\\rbrack");const s=Pt.RIGHT_DELIM[t];if(s&&("leftright"!==i.type||"|"!==i.leftDelim)){let i="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;i=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",i+=a?"?":s;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(i,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;for(const e in Pt.RIGHT_DELIM)Pt.RIGHT_DELIM.hasOwnProperty(e)&&t===Pt.RIGHT_DELIM[e]&&(a=e);if(a){if(i&&"leftright"===i.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),i.rightDelim=t,this.move(1),this.contentDidChange(),!0;const s=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==s[a].type||"?"!==s[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),s[a].rightDelim=t,s[a].body=s[a].body.concat(s.slice(a+1,this.endOffset()+1)),s.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(i&&"leftright"===i.type&&"?"===i.rightDelim){this.contentWillChange(),i.rightDelim=t;const e=s.slice(this.endOffset()+1);return s.splice(this.endOffset()+1),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.endOffset()+1,0].concat(e)),this.contentDidChange(),!0}const o=this.ancestor(2);return o&&"leftright"===o.type&&"?"===o.rightDelim&&this.endOffset()===s.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},Fe.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i<e.end&&!t[i].suggestion;)i++;this.setSelection(i-1)},Fe.prototype.removeSuggestion=function(){const t=this.siblings();for(let e=t.length-1;e>=0;e--)t[e].suggestion&&t.splice(e,1)},Fe.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new de.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},Fe.prototype._deleteAtoms=function(t){t>0?this.siblings().splice(this.anchorOffset()+1,t):(this.siblings().splice(this.anchorOffset()+t+1,-t),this.setSelection(this.anchorOffset()+t))},Fe.prototype.delete=function(t){if(0===(t=t||0))this.delete_(0);else if(t>0)for(;t>0;)this.delete_(1),t--;else for(;t<0;)this.delete_(-1),t++},Fe.prototype.delete_=function(t){this.contentWillChange(),this.selectionWillChange();const e=this.suppressChangeNotifications;if(this.suppressChangeNotifications=!0,t=(t=t||0)<0?-1:t>0?1:t,this.removeSuggestion(),this.parent().array&&t<0&&0===this.startOffset()){const t=this.parent().array;if(function(t){const e={col:0,row:0};for(;e.row<t.length&&!qe(t,e);)e.row+=1;return qe(t,e)?"cell"+De(t,e):""}(t)===this.relation()){const e=function(t,e,i){e||(e=[";",","]);let s,a=[];for(const i of t)s?a.push(s):s=new de.MathAtom("math","mpunct",e[0],void 0),a=a.concat(Ie(i,e[1]));return a}(t);this.path.pop(),this.siblings().splice(this.anchorOffset(),1,...e),this.setSelection(this.anchorOffset()-1,e.length)}else{const e=Ee(t,this.relation());if(0===e.col){const i=Be(t,e,-1);i.col=t[i.row].length-1,this.path[this.path.length-1].relation="cell"+De(t,i);const s=t[i.row][i.col].length,a=Ie(t[e.row]);t[i.row][i.col]=t[i.row][i.col].concat(a),this.setSelection(s-1,a.length),function(t,e){t.splice(e,1)}(t,e.row)}else if(0===function(t,e){let i=0;const s={col:e,row:0};for(;s.row<t.length;){const e=qe(t,s);if(e&&e.length>0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(i+=1)}s.row+=1}return i}(t,e.col)){!function(t,e){let i=0;for(;i<t.length;)t[i][e]&&t[i].splice(e,1),i+=1}(t,e.col),e.col-=1,this.path[this.path.length-1].relation="cell"+De(t,e);const i=t[e.row][e.col];this.setSelection(i.length-1,0)}}return this.suppressChangeNotifications=e,this.selectionDidChange(),void this.contentDidChange()}const i=this.siblings();if(this.isCollapsed()){const e=this.anchorOffset();if(t<0)if(0!==e){const t=this.sibling(0);"leftright"===t.type?(t.rightDelim="?",this.move(-1)):!t.captureSelection&&/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(t.type)?this.move(-1):(this._announce("delete",null,i.slice(e,e+1)),i.splice(e,1),this.setSelection(e-1))}else{const t=this.relation();if("superscript"===t||"subscript"===t){const e=this.parent()[t].filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.parent()[t]=null,this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(e)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: "+t)}else if("denom"===t){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: denominator")}else if("body"===t){const t=this.siblings().filter(t=>"placeholder"!==t.type);this.path.length>1&&(t.shift(),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(t)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: root"))}else this.move(-1),this.delete(-1)}else if(t>0)if(e!==i.length-1)/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,i.slice(e+1,e+2)),i.splice(e+1,1));else 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li={numeric:{tooltip:"keyboard.tooltip.numeric",layer:"math",label:"123",layers:["math"]},roman:{tooltip:"keyboard.tooltip.roman",layer:"lower-roman",label:"ABC",layers:["lower-roman","upper-roman","symbols"]},greek:{tooltip:"keyboard.tooltip.greek",layer:"lower-greek",label:"&alpha;&beta;&gamma;",classes:"tex-math",layers:["lower-greek","upper-greek"]},functions:{tooltip:"keyboard.tooltip.functions",layer:"functions",label:"<i>f</i>&thinsp;()",classes:"tex",layers:["functions"]},command:{tooltip:"keyboard.tooltip.command",command:"enterCommandMode",label:"<svg><use xlink:href='#svg-command' /></svg>",layers:["lower-command","upper-command","symbols-command"]},style:{tooltip:"keyboard.tooltip.style",layer:"style",label:"<b>b</b><i>i</i>𝔹"}},ci={"\\varphi ":{label:"&Phi;",insert:"\\Phi "},"\\varsigma ":{label:"&Sigma;",insert:"\\Sigma "},"\\epsilon ":{label:"&#x0190;",insert:'{\\char"0190}'},"\\rho ":{label:"&#x3A1",insert:'{\\char"3A1}'},"\\tau ":{label:"&#x3A4;",insert:'{\\char"3A4}'},"\\upsilon ":{label:"&Upsilon;",insert:"\\Upsilon "},"\\theta ":{label:"&Theta;",insert:"\\Theta "},"\\iota ":{label:"&Iota;",insert:'{\\char"399}'},"\\omicron ":{label:"&#x039F;",insert:'{\\char"39F}'},"\\pi ":{label:"&Pi;",insert:"\\Pi "},"\\alpha ":{label:"&Alpha;",insert:'{\\char"391}'},"\\sigma ":{label:"&Sigma;",insert:"\\Sigma "},"\\delta ":{label:"&Delta;",insert:"\\Delta "},"\\phi ":{label:"&#x03a6;",insert:"\\Phi "},"\\gamma ":{label:"&Gamma;",insert:"\\Gamma "},"\\eta ":{label:"&Eta;",insert:'{\\char"397}'},"\\xi ":{label:"&Xi;",insert:"\\Xi "},"\\kappa ":{label:"&Kappa;",insert:'{\\char"39A}'},"\\lambda ":{label:"&Lambda;",insert:"\\Lambda "},"\\zeta ":{label:"&Zeta;",insert:'{\\char"396}'},"\\chi ":{label:"&Chi;",insert:'{\\char"3A7}'},"\\psi ":{label:"&Psi;",insert:"\\Psi "},"\\omega ":{label:"&Omega;",insert:"\\Omega "},"\\beta ":{label:"&Beta;",insert:'{\\char"392}'},"\\nu ":{label:"&Nu;",insert:'{\\char"39D}'},"\\mu ":{label:"&Mu;",insert:'{\\char"39C}'}},hi={0:["\\emptyset","\\varnothing","\\infty",{latex:"#?_0",insert:"#@_0"},"\\circ","\\bigcirc","\\bullet"],2:["\\frac{1}{2}",{latex:"#?^2",insert:"#@^2"}],3:["\\frac{1}{3}",{latex:"#?^3",insert:"#@^3"}],".":[",",";","\\colon",{latex:":",aside:"ratio"},{latex:"\\cdotp",aside:"center dot",classes:"box"},{latex:"\\cdots",aside:"center ellipsis",classes:"box"},{latex:"\\ldotp",aside:"low dot",classes:"box"},{latex:"\\ldots",aside:"low ellipsis",classes:"box"},{latex:"\\vdots",aside:"",classes:"box"},{latex:"\\ddots",aside:"",classes:"box"},"\\odot","\\oslash","\\circledcirc"],"*":["\\cdot","\\ast","\\star","\\bigstar","\\ltimes","\\rtimes","\\rightthreetimes","\\leftthreetimes","\\intercal","\\prod",{latex:"\\prod_{n\\mathop=0}^{\\infty}",classes:"small"}],"+":["\\pm","\\mp","\\sum",{latex:"\\sum_{n\\mathop=0}^{\\infty}",classes:"small"},"\\dotplus","\\oplus"],"-":["\\pm","\\mp","\\ominus","\\vert #0  \\vert"],"/":["\\divideontimes","/","\\div"],"(":["\\left( #0\\right)","\\left[ #0\\right]","\\left\\{ #0\\right\\}","\\left\\langle #0\\right\\rangle","\\lfloor","\\llcorner","(","\\lbrack","\\lvert","\\lVert","\\lgroup","\\langle","\\lceil","\\ulcorner","\\lmoustache","\\lbrace"],")":["\\rfloor","\\lrcorner",")","\\rbrack","\\rvert","\\rVert","\\rgroup","\\rangle","\\rceil","\\urcorner","\\rmoustache","\\rbrace"],"=":["\\cong","\\asymp","\\equiv","\\differencedelta","\\varpropto","\\thickapprox","\\approxeq","\\thicksim","\\backsim","\\eqsim","\\simeq","\\Bumpeq","\\bumpeq","\\doteq","\\Doteq","\\fallingdotseq","\\risingdotseq","\\coloneq","\\eqcirc","\\circeq","\\triangleq","\\between"],"!=":["\\neq","\\ncong","","\\nsim"],"<":["\\leq","\\leqq","\\lneqq","\\ll","\\nless","\\nleq","\\precsim","\\lesssim","\\lessgtr","\\prec","\\preccurlyeq","\\lessdot","\\nprec"],">":["\\geq","\\geqq","\\gneqq","\\gg","\\ngtr","\\ngeq","\\succsim","\\gtrsim","\\gtrless","\\succ","\\succcurlyeq","\\gtrdot","\\nsucc"],set:["\\in","\\owns","\\subset","\\nsubset","\\supset","\\nsupset"],"!set":["\\notin","\\backepsilon"],subset:[],supset:[],infinity:["\\aleph_0","\\aleph_1","\\omega","\\mathfrak{m}"],"numeric-pi":["\\prod","\\theta","\\rho","\\sin","\\cos","\\tan"],ee:["\\times 10^{#?}","\\ln","\\ln_{10}","\\log"],"^":["_{#?}"],int:[{latex:"\\int_{#?}^{#?}",classes:"small"},{latex:"\\int",classes:"small"},{latex:"\\smallint",classes:"small"},{latex:"\\iint",classes:"small"},{latex:"\\iiint",classes:"small"},{latex:"\\oint",classes:"small"},{latex:"\\dfrac{\\rd}{\\rd x}",classes:"small"},{latex:"\\frac{\\partial}{\\partial x}",classes:"small"},"\\capitalDifferentialD","\\rd","\\partial"],nabla:["\\nabla\\times","\\nabla\\cdot","\\nabla^{2}"],"!":["!!","\\Gamma","\\Pi"],accents:["\\bar{#@}","\\vec{#@}","\\hat{#@}","\\check{#@}","\\dot{#@}","\\ddot{#@}","\\mathring{#@}","\\breve{#@}","\\acute{#@}","\\tilde{#@}","\\grave{#@}"],A:[{latex:"\\aleph",aside:"aleph"},{latex:"\\forall",aside:"for all"}],a:[{latex:"\\aleph",aside:"aleph"},{latex:"\\forall",aside:"for all"}],b:[{latex:"\\beth",aside:"beth"}],B:[{latex:"\\beth",aside:"beth"}],c:[{latex:"\\C",aside:"set of complex numbers"}],d:[{latex:"\\daleth",aside:"daleth"}],D:[{latex:"\\daleth",aside:"daleth"}],e:[{latex:"\\exponentialE",aside:"exponential e"},{latex:"\\exists",aside:"there is"},{latex:"\\nexists",aside:"there isn’t"}],g:[{latex:"\\gimel",aside:"gimel"}],G:[{latex:"\\gimel",aside:"gimel"}],h:[{latex:"\\hbar",aside:"h bar"},{latex:"\\hslash",aside:"h slash"}],i:[{latex:"\\imaginaryI",aside:"imaginary i"}],j:[{latex:"\\imaginaryJ",aside:"imaginary j"}],l:[{latex:"\\ell",aside:"ell"}],n:[{latex:"\\N",aside:"set of natural numbers"}],p:[{latex:"\\P",aside:"set of primes"}],q:[{latex:"\\Q",aside:"set of rational numbers"}],r:[{latex:"\\R",aside:"set of real numbers"}],z:[{latex:"\\Z",aside:"set of integers"}],"x-var":["y","z","t","r",{latex:"f(#?)",classes:"small"},{latex:"g(#?)",classes:"small"},"x^2","x^n","x_n","x_{n+1}","x_i","x_{i+1}"],"n-var":["i","j","p","k","a","u"],ii:["\\Re","\\Im","\\imaginaryJ","\\Vert #0 \\Vert"],logic:[{latex:"\\exists",aside:"there is"},{latex:"\\nexists",aside:"there isn’t"},{latex:"\\ni",aside:"such that"},{latex:"\\Colon",aside:"such that"},{latex:"\\implies",aside:"implies"},{latex:"\\impliedby",aside:"implied by"},{latex:"\\iff",aside:"if and only if"},{latex:"\\land",aside:"and"},{latex:"\\lor",aside:"or"},{latex:"\\oplus",aside:"xor"},{latex:"\\lnot",aside:"not"},{latex:"\\downarrow",aside:"nor"},{latex:"\\uparrow",aside:"nand"},{latex:"\\curlywedge",aside:"nor"},{latex:"\\bar\\curlywedge",aside:"nand"},{latex:"\\therefore",aside:"therefore"},{latex:"\\because",aside:"because"},{latex:"^\\biconditional",aside:"biconditional"},"\\leftrightarrow","\\Leftrightarrow","\\to","\\models","\\vdash","\\gets","\\dashv","\\roundimplies"],"set-operators":["\\cap","\\cup","\\setminus","\\smallsetminus","\\complement"],"set-relations":["\\in","\\notin","\\ni","\\owns","\\subset","\\supset","\\subseteq","\\supseteq","\\subsetneq","\\supsetneq","\\varsubsetneq","\\subsetneqq","\\nsubset","\\nsupset","\\nsubseteq","\\nsupseteq"],space:[{latex:'\\char"203A\\!\\char"2039',insert:"\\!",aside:"negative thin space<br>⁻³⧸₁₈ em"},{latex:'\\unicode{"203A}\\,\\unicode{"2039}',insert:"\\,",aside:"thin space<br>³⧸₁₈ em"},{latex:'\\unicode{"203A}\\:\\unicode{"2039}',insert:"\\:",aside:"medium space<br>⁴⧸₁₈ em"},{latex:'\\unicode{"203A}\\;\\unicode{"2039}',insert:"\\;",aside:"thick space<br>⁵⧸₁₈ em"},{latex:'\\unicode{"203A}\\ \\unicode{"2039}',insert:"\\ ",aside:"⅓ em"},{latex:'\\unicode{"203A}\\enspace\\unicode{"2039}',insert:"\\enspace",aside:"½ em"},{latex:'\\unicode{"203A}\\quad\\unicode{"2039}',insert:"\\quad",aside:"1 em"},{latex:'\\unicode{"203A}\\qquad\\unicode{"2039}',insert:"\\qquad",aside:"2 em"}],delete:[{label:'<span class="warning"><svg><use xlink:href="#svg-trash" /></svg></span>',command:'"deleteAll"'}],"->|":[]};let di={};const pi={math:"\n        <div class='rows'>\n            <ul>\n                <li class='keycap tex' data-alt-keys='x-var'><i>x</i></li>\n                <li class='keycap tex' data-alt-keys='n-var'><i>n</i></li>\n                <li class='separator w5'></li>\n                <row name='numpad-1'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-key='ee' data-alt-keys='ee'>e</li>\n                <li class='keycap tex' data-key='ii' data-alt-keys='ii'>i</li>\n                <li class='keycap tex' data-latex='\\pi' data-alt-keys='numeric-pi'></li>\n            </ul>\n            <ul>\n                <li class='keycap tex' data-key='<' data-alt-keys='<'>&lt;</li>\n                <li class='keycap tex' data-key='>' data-alt-keys='>'>&gt;</li>\n                <li class='separator w5'></li>\n                <row name='numpad-2'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='x2' data-insert='#@^{2}'><span><i>x</i>&thinsp;²</span></li>\n                <li class='keycap tex' data-alt-keys='^' data-insert='#@^{#?}'><span><i>x</i><sup>&thinsp;<small>&#x2b1a;</small></sup></span></li>\n                <li class='keycap tex' data-alt-keys='sqrt' data-insert='\\sqrt{#0}' data-latex='\\sqrt{#0}'></li>\n            </ul>\n            <ul>\n                <li class='keycap tex' data-alt-keys='(' >(</li>\n                <li class='keycap tex' data-alt-keys=')' >)</li>\n                <li class='separator w5'></li>\n                <row name='numpad-3'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex small' data-alt-keys='int' data-latex='\\int_0^\\infty'><span></span></li>\n                <li class='keycap tex' data-latex='\\forall' data-alt-keys='logic' ></li>\n                <li class='action font-glyph bottom right' data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'>&#x232b;</li></ul>\n            </ul>\n            <ul>\n                <li class='keycap' data-alt-keys='foreground-color' data-command='[\"applyStyle\",{\"color\":\"#cc2428\"}]'><span style='border-radius: 50%;width:22px;height:22px; border: 3px solid #cc2428; box-sizing: border-box'></span></li>\n                <li class='keycap' data-alt-keys='background-color' data-command='[\"applyStyle\",{\"backgroundColor\":\"#fff590\"}]'><span style='border-radius: 50%;width:22px;height:22px; background:#fff590; box-sizing: border-box'></span></li>\n                <li class='separator w5'></li>\n                <row name='numpad-4'/>\n                <li class='separator w5'></li>\n                <arrows/>\n            </ul>\n        </div>\n    ","lower-roman":"\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <row name='lower-1' shift-layer='upper-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <row name='lower-2'  shift-layer='upper-roman''/>\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <row name='lower-3'  shift-layer='upper-roman''/>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols'>&infin;≠</li>\n                <li class='keycap' data-alt-keys=','>,</li>\n                <li class='keycap w50' data-key=' ' data-alt-keys='space'>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>","upper-roman":"\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <row name='upper-1'  shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <row name='upper-2' shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <row name='upper-3' shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols'>&infin;≠</li>\n                <li class='keycap' data-alt-keys='.'>;</li>\n                <li class='keycap w50' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",symbols:"\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\lbrace '>{</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rbrace '>}</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='set' data-insert='\\in '>&#x2208;</li>\n                <li class='keycap tex' data-alt-keys='!set' data-insert='\\notin '>&#x2209;</li>\n                <li class='keycap tex' data-insert='\\Re '>&#x211c;<aside>Real</aside></li>\n                <li class='keycap tex' data-insert='\\Im '>&#x2111;<aside>Imaginary</aside></li>\n                <li class='keycap w15' data-insert='\\ulcorner#0\\urcorner '><span><sup>&#x250c;</sup><span><span style='color:#ddd'>o</span><sup>&#x2510;</sup></span><aside>ceil</aside></li>\n                <li class='keycap tex' data-alt-keys='nabla' data-insert='\\nabla '>&#x2207;<aside>nabla</aside></li>\n                <li class='keycap tex' data-alt-keys='infinity' data-insert='\\infty '>&#x221e;</li>\n\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\lbrack '>[</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rbrack '>]</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='subset' data-insert='\\subset '>&#x2282;</li>\n                <li class='keycap tex' data-alt-keys='supset' data-insert='\\supset '>&#x2283;</li>\n                <li class='keycap tex' data-key='!' data-alt-keys='!'>!<aside>factorial</aside></li>\n                <li class='keycap' data-insert='^{\\prime} '><span><sup><span><span style='color:#ddd'>o</span>&#x2032</sup></span><aside>prime</aside></li>\n                <li class='keycap w15' data-insert='\\llcorner#0\\lrcorner '><span><sub>&#x2514;</sub><span style='color:#ddd'>o</span><sub>&#x2518;</sub></span><aside>floor</aside></li>\n                <li class='keycap tex' data-insert='\\partial '>&#x2202;<aside>partial<br>derivative</aside></li>\n                <li class='keycap tex' data-insert='\\emptyset '>&#x2205;<aside>empty set</aside></li>\n\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\langle '>&#x27e8;</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rangle '>&#x27e9;</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-insert='\\subseteq '>&#x2286;</li>\n                <li class='keycap tex' data-insert='\\supseteq '>&#x2287;</li>\n                <li class='keycap tex' data-alt-keys='accents' data-insert='\\vec{#@}' data-latex='\\vec{#?}' data-aside='vector'></li>\n                <li class='keycap tex' data-alt-keys='accents' data-insert='\\bar{#@}' data-latex='\\bar{#?}' data-aside='bar'></li>\n                <li class='keycap tex' data-alt-keys='absnorm' data-insert='\\lvert #@ \\rvert ' data-latex='\\lvert #? \\rvert' data-aside='abs'></li>\n                <li class='keycap tex' data-insert='\\ast '>&#x2217;<aside>asterisk</aside></li>\n\n                <li class='action font-glyph bottom right w15'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='lower-roman'>abc</li>\n                <li class='keycap tex' data-insert='\\cdot '>&#x22c5;<aside>centered dot</aside></li>\n                <li class='keycap tex' data-insert='\\colon '>:<aside>colon</aside></li>\n                <li class='keycap tex' data-insert='\\circ '>&#x2218;<aside>circle</aside></li>\n                <li class='keycap tex' data-insert='\\approx '>&#x2248;<aside>approx.</aside></li>\n                <li class='keycap tex' data-insert='\\ne '>&#x2260;</li>\n                <li class='keycap tex' data-insert='\\pm '>&#x00b1;</li>\n                <arrows/>\n            </ul>\n        </div>","lower-greek":"\n        <div class='rows'>\n            <ul><li class='keycap tex' data-insert='\\varphi '><i>&#x03c6;</i><aside>phi var.</aside></li>\n                <li class='keycap tex' data-insert='\\varsigma '><i>&#x03c2;</i><aside>sigma var.</aside></li>\n                <li class='keycap tex' data-insert='\\epsilon '><i>&#x03f5;</i></li>\n                <li class='keycap tex' data-insert='\\rho '><i>&rho;</i></li>\n                <li class='keycap tex' data-insert='\\tau '><i>&tau;</i></li>\n                <li class='keycap tex' data-insert='\\upsilon '><i>&upsilon;</i></li>\n                <li class='keycap tex' data-insert='\\theta '><i>&theta;</i></li>\n                <li class='keycap tex' data-insert='\\iota '><i>&iota;</i></li>\n                <li class='keycap tex' data-insert='\\omicron '>&omicron;</i></li>\n                <li class='keycap tex' data-insert='\\pi '><i>&pi;</i></li>\n            </ul>\n            <ul><li class='keycap tex' data-insert='\\alpha ' data-shifted='&Alpha;' data-shifted-command='[\"insert\",\"{\\\\char\\\"391}\"]'><i>&alpha;</i></li>\n                <li class='keycap tex' data-insert='\\sigma '><i>&sigma;</i></li>\n                <li class='keycap tex' data-insert='\\delta '><i>&delta;</i></li>\n                <li class='keycap tex' data-insert='\\phi '><i>&#x03d5;</i></i></li>\n                <li class='keycap tex' data-insert='\\gamma '><i>&gamma;</i></li>\n                <li class='keycap tex' data-insert='\\eta '><i>&eta;</i></li>\n                <li class='keycap tex' data-insert='\\xi '><i>&xi;</i></li>\n                <li class='keycap tex' data-insert='\\kappa '><i>&kappa;</i></li>\n                <li class='keycap tex' data-insert='\\lambda '><i>&lambda;</i></li>\n            </ul>\n            <ul><li class='shift modifier font-glyph bottom left w15 layer-switch' data-layer='upper-greek'>&#x21e7;</li>\n                <li class='keycap tex' data-insert='\\zeta '><i>&zeta;</i></li>\n                <li class='keycap tex' data-insert='\\chi '><i>&chi;</i></li>\n                <li class='keycap tex' data-insert='\\psi '><i>&psi;</i></li>\n                <li class='keycap tex' data-insert='\\omega '><i>&omega;</i></li>\n                <li class='keycap tex' data-insert='\\beta '><i>&beta;</i></li>\n                <li class='keycap tex' data-insert='\\nu '><i>&nu;</i></li>\n                <li class='keycap tex' data-insert='\\mu '><i>&mu;</i></li>\n                <li class='action font-glyph bottom right w15'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <li class='keycap ' data-key=' '>&nbsp;</li>\n                <li class='keycap'>,</li>\n                <li class='keycap tex' data-insert='\\varepsilon '><i>&#x03b5;</i><aside>epsilon var.</aside></li>\n                <li class='keycap tex' data-insert='\\vartheta '><i>&#x03d1;</i><aside>theta var.</aside></li>\n                <li class='keycap tex' data-insert='\\varkappa '><i>&#x3f0;</i><aside>kappa var.</aside></li>\n                <li class='keycap tex' data-insert='\\varpi '><i>&#x03d6;<aside>pi var.</aside></i></li>\n                <li class='keycap tex' data-insert='\\varrho '><i>&#x03f1;</i><aside>rho var.</aside></li>\n                <arrows/>\n            </ul>\n        </div>","upper-greek":"\n        <div class='rows'>\n            <ul><li class='keycap tex' data-insert='\\Phi '>&Phi;<aside>phi</aside></li>\n                <li class='keycap tex' data-insert='\\Sigma '>&Sigma;<aside>sigma</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"0190}'>&#x0190;<aside>epsilon</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A1}'>&#x3A1;<aside>rho</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A4}'>&#x3A4;<aside>tau</aside></li>\n                <li class='keycap tex' 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if(t.subscript){let i=de.toSpeakableFragment(t.subscript,e);s+=' the product from <break time="200ms"/>'+(i=i.trim())+'<break time="200ms"/> of <break time="150ms"/>',r=!0}else s+=" the product  of ";else if("\\int"===a)if(t.superscript&&t.subscript){let a=de.toSpeakableFragment(t.superscript,e);a=a.trim();let o=de.toSpeakableFragment(t.subscript,e);s+=' the integral from <break time="200ms"/>'+i(o=o.trim())+'<break time="200ms"/> to <break time="200ms"/>'+i(a)+' <break time="200ms"/> of ',r=!0}else s+=' the integral of <break time="200ms"/> ';else if("string"==typeof t.body){s+=fs[t.body]||fs[t.latex.trim()]||" "+t.body}else t.latex&&t.latex.length>0&&("\\"===t.latex[0]?s+=" "+t.latex.substr(1):s+=" "+t.latex)}break;case"enclose":n=de.toSpeakableFragment(t.body,e),gs(t.body)?s+=" crossed out "+n+" , ":s+=" crossed out "+n+". 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i},ws.prototype.handleEvent=function(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}},ws.prototype.revertToOriginalContent=ws.prototype.$revertToOriginalContent=function(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,xs(this.textarea,"cut",this),xs(this.textarea,"copy",this),xs(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete 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e=this.mathlist.filter(function(t,e){return e.captureSelection?e.filter(t=>t.id===o).length>0:e.id===o});if(e&&e.length>0)if(s=ve.pathFromString(e[0]).path,0===i.bias){const e=a.getBoundingClientRect();t<e.left+e.width/2&&!a.classList.contains("ML__placeholder")&&(s[s.length-1].offset=Math.max(0,s[s.length-1].offset-1))}else i.bias<0&&(s[s.length-1].offset=Math.min(this.mathlist.siblings().length-1,Math.max(0,s[s.length-1].offset+i.bias)))}return s};let As=0;function Cs(t,e,i){const s=Object.assign({},t.config);return s.textToSpeechMarkup="",e+de.toSpeakableText(i,s)}function Ms(t,e,i,s){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>void 0)),t._resetKeystrokeBuffer()):"delete"===e?a=Cs(t,"deleted: ",s):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(i):"replacement"===e?a=Cs(t,"",t.mathlist.sibling(0)):"line"===e?(a=Cs(t,"",t.mathlist.root),t.accessibleNode.innerHTML='<math xmlns="http://www.w3.org/1998/Math/MathML">'+de.toMathML(t.mathlist.root,t.config)+"</math>",t.textarea.setAttribute("aria-label","after: "+a)):a=s?Cs(t,e+" ",s):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}ws.prototype._onPointerDown=function(t){const e=this;let i,s=!1,a=!1,o=!1;if(1!==t.buttons)return;function n(t){window.PointerEvent?(xs(e.field,"pointermove",h),xs(e.field,"pointerend pointerleave pointercancel",n),e.field.releasePointerCapture(t.pointerId)):(xs(e.field,"touchmove",h),xs(e.field,"touchend touchleave",n),xs(window,"mousemove",h),xs(window,"mouseup blur",n)),s=!1,clearInterval(c),e.element.querySelectorAll(".ML__scroller").forEach(t=>t.parentNode.removeChild(t)),t.preventDefault(),t.stopPropagation()}let r=!1,l=!1;const c=setInterval(()=>{r?e.field.scroll({top:0,left:e.field.scrollLeft-16}):l&&e.field.scroll({top:0,left:e.field.scrollLeft+16})},32);function h(t){const s=t.touches?t.touches[0].clientX:t.clientX,o=t.touches?t.touches[0].clientY:t.clientY,n="touch"===t.pointerType?20:5;if(Date.now()<m+500&&Math.abs(d-s)<n&&Math.abs(p-o)<n)return t.preventDefault(),void t.stopPropagation();const c=e.field.getBoundingClientRect();l=s>c.right,r=s<c.left;let h=i;window.PointerEvent?t.isPrimary||(h=e._pathFromPoint(t.clientX,t.clientY,{bias:0})):t.touches&&2===t.touches.length&&(h=e._pathFromPoint(t.touches[1].clientX,t.touches[1].clientY,{bias:0}));const u=e._pathFromPoint(s,o,{bias:s<=d?s===d?0:-1:1});u&&e.mathlist.setRange(h,u,{extendToWordBoundary:a})&&e._requestUpdate(),t.preventDefault(),t.stopPropagation()}const d=t.touches?t.touches[0].clientX:t.clientX,p=t.touches?t.touches[0].clientY:t.clientY,m=Date.now();Ss&&Math.abs(Ss.x-d)<5&&Math.abs(Ss.y-p)<5&&Date.now()<Ss.time+500?(As+=1,Ss.time=m):(Ss={x:d,y:p,time:m},As=1);const u=this.field.getBoundingClientRect();if(d>=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",(r=document.createElement("div")).className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",this.hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,(i=this._pathFromPoint(d,p,{bias:0}))&&(t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),(i=ve.clone(this.mathlist.path))[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||As>2?(n(t),3!==t.detail&&3!==As||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(bs(e.field,"pointermove",h),bs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(bs(window,"blur",n),t.touches?(bs(t.target,"touchmove",h),bs(t.target,"touchend",n)):(bs(window,"mousemove",h),bs(window,"mouseup",n))),2!==t.detail&&2!==As||(a=!0,this.mathlist.selectGroup_())))}else Ss=null;o&&this._requestUpdate(),t.preventDefault()},ws.prototype._onSelectionDidChange=function(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.hasFocus()&&this.textarea.select&&this.textarea.select()):(this.textarea.value="",this.textarea.setAttribute("aria-label",""));{const t=this.mode;this.mode=this.mathlist.anchorMode()||this.config.defaultMode,this.mode!==t&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),"command"===t&&"command"!==this.mode&&(oi.hidePopover(this),this.mathlist.removeCommandString())}oi.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)},ws.prototype._onContentDidChange=function(){this.undoManager.canRedo()?this.element.classList.add("can-redo"):this.element.classList.remove("can-redo"),this.undoManager.canUndo()?this.element.classList.add("can-undo"):this.element.classList.remove("can-undo"),"function"==typeof this.config.onContentDidChange&&this.config.onContentDidChange(this)},ws.prototype._nextAtomSpeechText=function(t){function e(t,e){return"body"===e.relation?{enclose:"cross out",leftright:"fence",surd:"square root",root:"math field"}[t.type]:{numer:"numerator",denom:"denominator",index:"index",body:"parent",subscript:"subscript",superscript:"superscript"}[e.relation]}const i=t?t.path:[],s=this.mathlist.path,a=s[s.length-1];let o="";for(;i.length>s.length;)o+="out of "+e(t.parent(),i[i.length-1])+"; ",i.pop();if(!this.mathlist.isCollapsed())return Cs(this,"",this.mathlist.getSelectedAtoms());const n=e(this.mathlist.parent(),a);0===a.offset&&(o+=(n?"start of "+n:"unknown")+": ");const r=this.mathlist.sibling(Math.max(1,this.mathlist.extent));return r?o+=Cs(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o},ws.prototype._announce=function(t,e,i){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,i)},ws.prototype._onFocus=function(){this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),oi.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())},ws.prototype._onBlur=function(){this.blurred||(this.blurred=!0,this.ariaLiveText.textContent="","onfocus"===this.config.virtualKeyboardMode&&this.hideVirtualKeyboard_(),this.complete_({discard:!0}),this._requestUpdate(),this.config.onBlur&&this.config.onBlur(this))},ws.prototype._onResize=function(){this.element.classList.remove("ML__isNarrowWidth","ML__isWideWidth","ML__isExtendedWidth"),window.innerWidth>=1024?this.element.classList.add("ML__isExtendedWidth"):window.innerWidth>=768?this.element.classList.add("ML__isWideWidth"):this.element.classList.add("ML__isNarrowWidth"),oi.updatePopoverPosition(this)},ws.prototype.toggleKeystrokeCaption_=function(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")},ws.prototype._showKeystroke=function(t){const e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const i=this.element.getBoundingClientRect();e.style.left=i.left+"px",e.style.top=i.top-64+"px",e.innerHTML="<span>"+(Le.stringify(t)||t)+"</span>"+e.innerHTML,e.style.visibility="visible",setTimeout(function(){e.childNodes.length>0&&e.removeChild(e.childNodes[e.childNodes.length-1]),0===e.childNodes.length&&(e.style.visibility="hidden")},3e3)}},ws.prototype.perform=ws.prototype.$perform=function(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=Pt.suggest(t);0===e.length?oi.hidePopover(this):oi.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i},ws.prototype.performWithFeedback_=function(t){return this.focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>void 0)):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>void 0)):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>void 0)):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>void 0)),this.perform(t)},ws.prototype.convertLastAtomsToText_=function(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let i=0,s=!1;for(this.mathlist.contentWillChange();!s;){const a=this.mathlist.sibling(i);(s=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a))||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()},ws.prototype.convertLastAtomsToMath_=function(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let i=0,s=!1;for(;!s;){const a=this.mathlist.sibling(i);(s=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a))||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()},ws.prototype.removeIsolatedSpace_=function(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}},ws.prototype.getTextBeforeAnchor_=function(){let t="",e=0,i=!1;for(;!i;){const s=this.mathlist.sibling(e);(i=!(s&&("text"===s.mode&&!s.type||"math"===s.mode&&/mord|textord|mpunct/.test(s.type))))||(t=s.body+t),e-=1}return t},ws.prototype.smartMode_=function(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()<this.mathlist.siblings().length-1)return!1;if(!e||e.ctrlKey||e.metaKey)return!1;const i=Ye.eventToChar(e);if(i.length>1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[\/_^]/.test(i));const s=this.getTextBeforeAnchor_()+i;if("text"===this.mode){if("Esc"===t||/[\/\\]/.test(i))return!0;if(/[\^_]/.test(i))return/(^|\s)[a-zA-Z][^_]$/.test(s)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[i];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(s))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(i))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(s))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(s)){this.convertLastAtomsToMath_(1);const t=this.mathlist.sibling(0);return t.body="⋅",t.autoFontFamily="cmr",t.latex="\\cdot",!0}if(/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(s))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(i))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(s)&&!/(dxd|abc|xyz|uvw)$/.test(s))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(s))return this.convertLastAtomsToText_(1),!0;if(/\?|\./.test(i))return!0}return!1},ws.prototype._onKeystroke=function(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let i,s,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ye.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a<e.length;){let t;if(this.keystrokeBufferStates[a]){const e=new Ue.EditableMathlist;e.root=de.makeRoot("math",be.parseTokens(x.tokenize(this.keystrokeBufferStates[a].latex),this.config.default,null,this.config.macros)),e.setPath(this.keystrokeBufferStates[a].selection),t=e.siblings()}else t=this.mathlist.siblings();i=Le.forString(this.mode,t,e.slice(a),this.config),a+=1}s=a-1,this.keystrokeBuffer+=t,this.keystrokeBufferStates.push(this.undoManager.save()),Le.startsWithString(e,this.config).length<=1?o=!0:this.config.inlineShortcutTimeout&&(this.keystrokeBufferResetTimer=setTimeout(()=>{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const s=this.mode;i?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==s&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(i||a||(a=Le.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const n=this.mathlist.parent();if("moveAfterParent"===a&&n&&"leftright"===n.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!i){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.perform(a)||i)&&i){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ye.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1},ws.prototype._onTypedText=function(t,e){if((e=e||{}).focus&&this.focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>void 0))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=Ye.charToEvent(e);if(!this.$keystroke(Ye.keyboardEventToString(i),i))return}let i="",s=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},a=g.splitGraphemes(t);for(const t of a)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),a=Pt.suggest(e+t);s=a.length>1,0===a.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),oi.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),a[0].match!==e+t&&this.mathlist.insertSuggestion(a[0].match,-a[0].match.length+e.length+1),i=a[0].match)}else if("math"===this.mode){const i={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(i){if("moveToSuperscript"===i){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===i&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),oi.showPopoverWithLatex(this,i,s)},ws.prototype._hash=function(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;i<e.length;i++)t=31*t+e.charCodeAt(i),t|=0;return Math.abs(t)},ws.prototype._requestUpdate=function(){this.dirty||(this.dirty=!0,requestAnimationFrame(t=>this._render()))},ws.prototype._render=function(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1});const e=this.hasFocus();this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0});const i=de.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=et.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=et.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=et.makeSpan("","ML__strut--bottom");t.setStyle("height",s.height+s.depth,"em"),t.setStyle("vertical-align",-s.depth,"em"),o.push(t)}o.push(s);const n=et.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e),this.accessibleNode.innerHTML="<math xmlns='http://www.w3.org/1998/Math/MathML'>"+de.toMathML(this.mathlist.root,this.config)+"</math>";const r=this._getSelectionBounds();if(r){const t=document.createElement("div");t.classList.add("ML__selection"),t.style.position="absolute",t.style.left=r.left+"px",t.style.top=r.top+"px",t.style.width=Math.ceil(r.right-r.left)+"px",t.style.height=Math.ceil(r.bottom-r.top-1)+"px",this.field.insertBefore(t,this.field.childNodes[0])}},ws.prototype._onPaste=function(){return this.pasteInProgress=!0,!0},ws.prototype._onCut=function(){return setTimeout(function(){this.clearSelection(),this._requestUpdate()}.bind(this),0),!0},ws.prototype._onCopy=function(t){this.mathlist.isCollapsed()?(t.clipboardData.setData("text/plain",this.$text("latex-expanded")),t.clipboardData.setData("application/json",this.$text("json")),t.clipboardData.setData("application/xml",this.$text("mathML"))):(t.clipboardData.setData("text/plain",this.$selectedText("latex-expanded")),t.clipboardData.setData("application/json",this.$selectedText("json")),t.clipboardData.setData("application/xml",this.$selectedText("mathML"))),t.preventDefault()},ws.prototype.formatMathlist=function(t,e){let i="";if("latex"===(e=e||"latex")||"latex-expanded"===e)i=t.toLatex("latex-expanded"===e);else if("mathML"===e)i=t.toMathML(this.config);else if("spoken"===e)i=de.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=de.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="ssml",i=de.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("json"===e){const e=de.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let s="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let a=0;for(s='"';e[a]&&"text"===e[a].mode;)s+=e[a].body,a++;s+='"'+t(e.slice(a),i)}else{let a=0;for(;e[a]&&"math"===e[a].mode;)s+=t(e[a],i),a++;s+=t(e.slice(a),i)}return s.trim()}let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body,i);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer,i),s+=")/(",s+=t(e.denom,i),s+=")"):(s+="("+t(e.numer,i)+"),",s+="("+t(e.denom,i)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index,i)+")("+t(e.body,i)+")":s+="sqrt("+t(e.body,i)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body,i),s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":"\\"===(s=bi[a]||a||("string"==typeof e.body?e.body:""))[0]&&(s+=""),(o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null)?s=String.fromCharCode(parseInt("0x"+o[1])):s.length>0&&"\\"===s.charAt(0)&&(s="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":s=a&&bi[a]?bi[a]:a&&xi[a]?xi[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=xi[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?e.body:e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const a=t(e.subscript,i);a.length>1&&!/^(-)?\d+(\.\d*)?$/.test(a)?s+="("+a+")":s+=a}if(e.superscript){s+="^";const a=t(e.superscript,i);a.length>1&&!/^(-)?\d+(\.\d*)?$/.test(a)?s+="("+a+")":s+=a}return s}(t,this.config));return i},ws.prototype.text=ws.prototype.$text=function(t){return this.formatMathlist(this.mathlist.root,t)},ws.prototype.selectedText=ws.prototype.$selectedText=function(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=de.makeRoot("math",e);return this.formatMathlist(i,t)},ws.prototype.selectionIsCollapsed=ws.prototype.$selectionIsCollapsed=function(){return this.mathlist.isCollapsed()},ws.prototype.selectionDepth=ws.prototype.$selectionDepth=function(){return this.mathlist.path.length},ws.prototype._superscriptDepth=function(){let t=0,e=0,i=this.mathlist.ancestor(e),s=!1;for(;i;)(i.superscript||i.subscript)&&(t+=1),i.superscript?s=!0:i.subscript&&(s=!1),e+=1,i=this.mathlist.ancestor(e);return s?t:0},ws.prototype._subscriptDepth=function(){let t=0,e=0,i=this.mathlist.ancestor(e),s=!1;for(;i;)(i.superscript||i.subscript)&&(t+=1),i.superscript?s=!1:i.subscript&&(s=!0),e+=1,i=this.mathlist.ancestor(e);return s?t:0},ws.prototype.selectionAtStart=ws.prototype.$selectionAtStart=function(){return 0===this.mathlist.startOffset()},ws.prototype.selectionAtEnd=ws.prototype.$selectionAtEnd=function(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1},ws.prototype.groupIsSelected=function(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1},ws.prototype.latex=ws.prototype.$latex=function(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()},ws.prototype.el=ws.prototype.$el=function(){return this.element},ws.prototype.undo_=ws.prototype.undo=function(){return this.complete_(),this.undoManager.undo(this.config),!0},ws.prototype.redo_=ws.prototype.redo=function(){return this.complete_(),this.undoManager.redo(this.config),!0},ws.prototype.scrollIntoView_=ws.prototype.scrollIntoView=function(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const i=this._getSelectionBounds();i&&(t={x:i.right+e.left-this.field.scrollLeft,y:i.top+e.top-this.field.scrollTop})}if(t){const i=t.x-window.scrollX;i<e.left?this.field.scroll({top:0,left:i-e.left+this.field.scrollLeft-20,behavior:"smooth"}):i>e.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}},ws.prototype.scrollToStart_=ws.prototype.scrollToStart=function(){this.field.scroll(0,0)},ws.prototype.scrollToEnd_=ws.prototype.scrollToEnd=function(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)},ws.prototype.enterCommandMode_=function(){this.switchMode_("command")},ws.prototype.copyToClipboard_=function(){return this.focus(),this.mathlist.isCollapsed()&&this.select(),document.execCommand("copy"),!1},ws.prototype.cutToClipboard_=function(){return this.focus(),document.execCommand("cut"),!0},ws.prototype.pasteFromClipboard_=function(){return this.focus(),document.execCommand("paste"),!0},ws.prototype.insert_=ws.prototype.insert=ws.prototype.$insert=function(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play())),"\\\\"===t)this.mathlist.addRowAfter_();else if("&"===t)this.mathlist.addColumnAfter_();else{const i=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=i)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1},ws.prototype.switchMode_=function(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),oi.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()},ws.prototype.complete_=function(t){if(t=t||{},oi.hidePopover(this),t.discard)return this.mathlist.spliceCommandStringAroundInsertionPoint(null),this.switchMode_("math"),!0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(!t.acceptSuggestion);if(e){if("\\("===e||"\\)"===e)this.mathlist.spliceCommandStringAroundInsertionPoint([]),this.mathlist.insert(e.slice(1),{mode:this.mode});else{const t="math";if(Pt.commandAllowed(t,e)){const i=be.parseTokens(x.tokenize(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=be.parseTokens(x.tokenize(e),t,null,this.config.macros);i?this.mathlist.spliceCommandStringAroundInsertionPoint(i):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1},ws.prototype._updateSuggestion=function(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=Pt.suggest(t);if(0===e.length)oi.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const i=this.suggestionIndex%e.length,s=t.length-e[i].match.length;0!==s&&this.mathlist.insertSuggestion(e[i].match,s),oi.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()},ws.prototype.nextSuggestion_=function(){return this.suggestionIndex+=1,this._updateSuggestion(),!1},ws.prototype.previousSuggestion_=function(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=Pt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1},ws.prototype._attachButtonHandlers=function(t,e){const i=this;let s,a,o,n,r;"object"==typeof e&&(e.default||e.pressed)?(e.default&&t.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e.default)),e.alt&&t.setAttribute("data-"+this.config.namespace+"command-alt",JSON.stringify(e.alt)),e.altshift&&t.setAttribute("data-"+this.config.namespace+"command-altshift",JSON.stringify(e.altshift)),e.shift&&t.setAttribute("data-"+this.config.namespace+"command-shift",JSON.stringify(e.shift)),e.pressed&&t.setAttribute("data-"+this.config.namespace+"command-pressed",JSON.stringify(e.pressed)),e.pressAndHoldStart&&t.setAttribute("data-"+this.config.namespace+"command-pressAndHoldStart",JSON.stringify(e.pressAndHoldStart)),e.pressAndHoldEnd&&t.setAttribute("data-"+this.config.namespace+"command-pressAndHoldEnd",JSON.stringify(e.pressAndHoldEnd))):t.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e)),bs(t,"mousedown touchstart:passive",function(e){if("mousedown"!==e.type||1===e.buttons){e.stopPropagation(),e.preventDefault(),t.classList.add("pressed"),s=Date.now(),"touchstart"===e.type&&(o=e.changedTouches[0].identifier);const n=t.getAttribute("data-"+i.config.namespace+"command-pressed");n&&i.perform(JSON.parse(n));const l=t.getAttribute("data-"+i.config.namespace+"command-pressAndHoldStart");l&&(a=t,r&&clearTimeout(r),r=window.setTimeout(function(){t.classList.contains("pressed")&&i.perform(JSON.parse(l))},300))}}),bs(t,"mouseleave touchcancel",function(){t.classList.remove("pressed")}),bs(t,"touchmove:passive",function(t){t.preventDefault();for(let e=0;e<t.changedTouches.length;e++)if(t.changedTouches[e].identifier===o){const i=document.elementFromPoint(t.changedTouches[e].clientX,t.changedTouches[e].clientY);i!==n&&n&&(n.dispatchEvent(new MouseEvent("mouseleave"),{bubbles:!0}),n=null),i&&(n=i,i.dispatchEvent(new MouseEvent("mouseenter",{bubbles:!0,buttons:1})))}}),bs(t,"mouseenter",function(e){1===e.buttons&&t.classList.add("pressed")}),bs(t,"mouseup touchend click",function(e){if(n){e.stopPropagation(),e.preventDefault();const t=n;return n=null,void t.dispatchEvent(new MouseEvent("mouseup",{bubbles:!0}))}if(t.classList.remove("pressed"),t.classList.add("active"),"click"===e.type&&0!==e.detail)return e.stopPropagation(),void e.preventDefault();window.setTimeout(function(){t.classList.remove("active")},150);let o=t.getAttribute("data-"+i.config.namespace+"command-pressAndHoldEnd");const r=Date.now();(t!==a||r<s+300)&&(o=void 0),!o&&e.altKey&&e.shiftKey&&(o=t.getAttribute("data-"+i.config.namespace+"command-altshift")),!o&&e.altKey&&(o=t.getAttribute("data-"+i.config.namespace+"command-alt")),!o&&e.shiftKey&&(o=t.getAttribute("data-"+i.config.namespace+"command-shift")),o||(o=t.getAttribute("data-"+i.config.namespace+"command")),o&&i.perform(JSON.parse(o)),e.stopPropagation(),e.preventDefault()})},ws.prototype._makeButton=function(t,e,i,s){const a=document.createElement("span");return a.innerHTML=t,e&&a.classList.add([].slice.call(e.split(" "))),i&&a.setAttribute("aria-label",i),this._attachButtonHandlers(a,s),a},ws.prototype.showAlternateKeys_=function(t,e){const i=ks("mathlive-alternate-keys-panel","ML__keyboard alternate-keys");this.virtualKeyboard.classList.contains("material")&&i.classList.add("material"),e.length>=7?i.style.width="286px":4===e.length||2===e.length?i.style.width="146px":1===e.length?i.style.width="86px":i.style.width="146px",i.style.height="auto";let s="";for(const t of e)s+="<li","string"==typeof t?s+=' data-latex="'+t.replace(/"/g,"&quot;")+'"':(t.latex&&(s+=' data-latex="'+t.latex.replace(/"/g,"&quot;")+'"'),t.content&&(s+=' data-content="'+t.content.replace(/"/g,"&quot;")+'"'),t.insert&&(s+=' data-insert="'+t.insert.replace(/"/g,"&quot;")+'"'),t.command&&(s+=" data-command='"+t.command.replace(/"/g,"&quot;")+"'"),t.aside&&(s+=' data-aside="'+t.aside.replace(/"/g,"&quot;")+'"'),t.classes&&(s+=' data-classes="'+t.classes+'"')),s+=">",s+=t.label||"",s+="</li>";s="<ul>"+s+"</ul>",i.innerHTML=s,yi.makeKeycap(this,i.getElementsByTagName("li"),"performAlternateKeys");const a=this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="'+t+'"]').getBoundingClientRect();if(a){a.top-i.clientHeight<0&&(i.style.width="auto",e.length<=6?i.style.height="56px":e.length<=12?i.style.height="108px":i.style.height="205px");const t=(a.top-i.clientHeight+5).toString()+"px",s=Math.max(0,Math.min(window.innerWidth-i.offsetWidth,(a.left+a.right-i.offsetWidth)/2))+"px";i.style.transform="translate("+s+","+t+")",i.classList.add("is-visible")}return!1},ws.prototype.hideAlternateKeys_=function(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",vs(t)),!1},ws.prototype.performAlternateKeys_=function(t){return this.hideAlternateKeys_(),this.perform(t)},ws.prototype.switchKeyboardLayer_=function(t){if("off"!==this.config.virtualKeyboardMode){"lower-command"!==t&&"upper-command"!==t&&"symbols-command"!==t&&this.complete_(),this.showVirtualKeyboard_(),this.hideAlternateKeys_(),this.unshiftKeyboardLayer_();const e=this.virtualKeyboard.getElementsByClassName("keyboard-layer");let i=!1;for(let s=0;s<e.length;s++)if(e[s].id===t){i=!0;break}if(i)for(let i=0;i<e.length;i++)e[i].id===t?e[i].classList.add("is-visible"):e[i].classList.remove("is-visible");this.focus()}return!0},ws.prototype.shiftKeyboardLayer_=function(){const t=this.virtualKeyboard.querySelectorAll("div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action");if(t)for(let e=0;e<t.length;e++){const i=t[e];let s=i.getAttribute("data-shifted");if(s||/^[a-z]$/.test(i.innerHTML)){i.setAttribute("data-unshifted-content",i.innerHTML),s||(s=i.innerHTML.toUpperCase()),i.innerHTML=s;const t=i.getAttribute("data-"+this.config.namespace+"command");if(t){i.setAttribute("data-unshifted-command",t);const e=i.getAttribute("data-shifted-command");if(e)i.setAttribute("data-"+this.config.namespace+"command",e);else{const e=JSON.parse(t);Array.isArray(e)&&(e[1]=e[1].toUpperCase()),i.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e))}}}}return!1},ws.prototype.unshiftKeyboardLayer_=function(){const t=this.virtualKeyboard.querySelectorAll("div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action");if(t)for(let e=0;e<t.length;e++){const i=t[e],s=i.getAttribute("data-unshifted-content");s&&(i.innerHTML=s);const a=i.getAttribute("data-unshifted-command");a&&i.setAttribute("data-"+this.config.namespace+"command",a)}return!1},ws.prototype.insertAndUnshiftKeyboardLayer_=function(t){return this.insert_(t),this.unshiftKeyboardLayer_(),!0},ws.prototype.toggleVirtualKeyboardAlt_=function(){let t=!1;return this.virtualKeyboard&&(t=this.virtualKeyboard.classList.contains("material"),this.virtualKeyboard.remove(),delete this.virtualKeyboard,this.virtualKeyboard=null),this.showVirtualKeyboard_(t?"":"material"),!1},ws.prototype.toggleVirtualKeyboardShift_=function(){this.config.virtualKeyboardLayout={qwerty:"azerty",azerty:"qwertz",qwertz:"dvorak",dvorak:"colemak",colemak:"qwerty"}[this.config.virtualKeyboardLayout];let t=this.virtualKeyboard?this.virtualKeyboard.querySelector("div.keyboard-layer.is-visible"):null;return t=t?t.id:"",this.virtualKeyboard&&(this.virtualKeyboard.remove(),delete this.virtualKeyboard,this.virtualKeyboard=null),this.showVirtualKeyboard_(),t&&this.switchKeyboardLayer_(t),!1},ws.prototype.showVirtualKeyboard_=function(t){return this.virtualKeyboardVisible=!1,this.toggleVirtualKeyboard_(t),!1},ws.prototype.hideVirtualKeyboard_=function(){return this.virtualKeyboardVisible=!0,this.toggleVirtualKeyboard_(),!1},ws.prototype.toggleVirtualKeyboard_=function(t){if(this.virtualKeyboardVisible=!this.virtualKeyboardVisible,this.virtualKeyboardVisible){this.virtualKeyboard?this.virtualKeyboard.classList.add("is-visible"):(this.virtualKeyboard=yi.make(this,t),bs(this.virtualKeyboard,"touchstart:passive mousedown",function(){e.focus()}),document.body.appendChild(this.virtualKeyboard));const e=this;window.setTimeout(function(){e.virtualKeyboard.classList.add("is-visible")},1)}else this.virtualKeyboard&&this.virtualKeyboard.classList.remove("is-visible");return"function"==typeof this.config.onVirtualKeyboardToggle&&this.config.onVirtualKeyboardToggle(this,this.virtualKeyboardVisible,this.virtualKeyboard),!1},ws.prototype.$applyStyle=ws.prototype.applyStyle_=function(t){if(this._resetKeystrokeBuffer(),(t=function(t){const e={};return"string"==typeof t.mode&&(e.mode=t.mode.toLowerCase()),"string"==typeof t.color&&(e.color=t.color),"string"==typeof t.backgroundColor&&(e.backgroundColor=t.backgroundColor),"string"==typeof t.fontFamily&&(e.fontFamily=t.fontFamily),"string"==typeof t.series&&(e.fontSeries=t.series),"string"==typeof t.fontSeries&&(e.fontSeries=t.fontSeries.toLowerCase()),e.fontSeries&&(e.fontSeries={bold:"b",medium:"m",normal:"mn"}[e.fontSeries]||e.fontSeries),"string"==typeof t.shape&&(e.fontShape=t.shape),"string"==typeof t.fontShape&&(e.fontShape=t.fontShape.toLowerCase()),e.fontShape&&(e.fontShape={italic:"it",up:"n",upright:"n",normal:"n"}[e.fontShape]||e.fontShape),"string"==typeof t.size?e.fontSize=t.size:"number"==typeof t.size&&(e.fontSize="size"+Math.min(0,Math.max(10,t.size))),"string"==typeof t.fontSize&&(e.fontSize=t.fontSize.toLowerCase()),e.fontSize&&(e.fontSize={tiny:"size1",scriptsize:"size2",footnotesize:"size3",small:"size4",normal:"size5",normalsize:"size5",large:"size6",Large:"size7",LARGE:"size8",huge:"size9",Huge:"size10"}[e.fontSize]||e.fontSize),e}(t)).mode){if(this.mathlist.isCollapsed())this.switchMode_(t.mode);else{const t=this.mode,e="math"===(this.mathlist.anchorMode()||this.config.default)?"text":"math";let i=this.$selectedText("ASCIIMath");if("math"===e&&/^"[^"]+"$/.test(i)&&(i=i.slice(1,-1)),this.insert(i,{mode:e,selectionMode:"item",format:"text"===e?"text":"ASCIIMath"}),this.mode=e,this.groupIsSelected()){const t=this.mathlist.parent();!t||"group"!==t.type&&"root"!==t.type||(t.mode=e)}this.mode!==t&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}delete t.mode}return this.mathlist.isCollapsed()?(this.style.fontSeries&&t.fontSeries===this.style.fontSeries&&(t.fontSeries="auto"),t.fontShape&&t.fontShape===this.style.fontShape&&(t.fontShape="auto"),t.color&&t.color===this.style.color&&(t.color="none"),t.backgroundColor&&t.backgroundColor===this.style.backgroundColor&&(t.backgroundColor="none"),t.fontSize&&t.fontSize===this.style.fontSize&&(t.fontSize="auto"),this.style={...this.style,...t}):(this.mathlist._applyStyle(t),this.undoManager.snapshot(this.config)),!0},ws.prototype.hasFocus=ws.prototype.$hasFocus=function(){return document.hasFocus()&&document.activeElement===this.textarea},ws.prototype.focus=ws.prototype.$focus=function(){this.hasFocus()||(this.textarea.focus&&this.textarea.focus(),this._announce("line"))},ws.prototype.blur=ws.prototype.$blur=function(){this.hasFocus()&&this.textarea.blur&&this.textarea.blur()},ws.prototype.select=ws.prototype.$select=function(){this.mathlist.selectAll_()},ws.prototype.clearSelection=ws.prototype.$clearSelection=function(){this.mathlist.delete_()},ws.prototype.keystroke=ws.prototype.$keystroke=function(t,e){return this._onKeystroke(t,e)},ws.prototype.typedText=ws.prototype.$typedText=function(t){this._onTypedText(t)},ws.prototype.typedText_=function(t,e){return this._onTypedText(t,e)},ws.prototype.setConfig=ws.prototype.$setConfig=function(t){if(this.config||(this.config={smartFence:!0,smartSuperscript:!0,scriptDepth:[1/0,1/0],removeExtraneousParentheses:!0,overrideDefaultInlineShortcuts:!1,virtualKeyboard:"",virtualKeyboardLayout:"qwerty",namespace:""}),this.config={...this.config,...t},!Array.isArray(this.config.scriptDepth)){const t=parseInt(this.config.scriptDepth);this.config.scriptDepth=[t,t]}if(void 0===this.config.removeExtraneousParentheses&&(this.config.removeExtraneousParentheses=!0),this.config.onAnnounce=t.onAnnounce||Ms,this.config.macros=Object.assign({},Pt.MACROS,this.config.macros),!/^[a-z]*[-]?$/.test(this.config.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(this.config.namespace)||(this.config.namespace+="-"),ri.locale=this.config.locale||ri.locale,ri.merge(this.config.strings),this.config.virtualKeyboardLayout=t.virtualKeyboardLayout||{fr:"azerty",be:"azerty",al:"qwertz",ba:"qwertz",cz:"qwertz",de:"qwertz",hu:"qwertz",sk:"qwertz",ch:"qwertz"}[ri.locale.substring(0,2)]||"qwerty",this.keypressSound=void 0,this.spacebarKeypressSound=void 0,this.returnKeypressSound=void 0,this.deleteKeypressSound=void 0,this.config.keypressSound&&("string"==typeof this.config.keypressSound?(this.keypressSound=new Audio,this.keypressSound.preload="none",this.keypressSound.src=this.config.keypressSound,this.keypressSound.volume=.5,this.spacebarKeypressSound=this.keypressSound,this.returnKeypressSound=this.keypressSound,this.deleteKeypressSound=this.keypressSound):(this.keypressSound=new Audio,this.keypressSound.preload="none",this.keypressSound.src=this.config.keypressSound.default,this.keypressSound.volume=.5,this.spacebarKeypressSound=this.keypressSound,this.returnKeypressSound=this.keypressSound,this.deleteKeypressSound=this.keypressSound,this.config.keypressSound.spacebar&&(this.spacebarKeypressSound=new Audio,this.spacebarKeypressSound.preload="none",this.spacebarKeypressSound.src=this.config.keypressSound.spacebar,this.spacebarKeypressSound.volume=.5),this.config.keypressSound.return&&(this.returnKeypressSound=new Audio,this.returnKeypressSound.preload="none",this.returnKeypressSound.src=this.config.keypressSound.return,this.returnKeypressSound.volume=.5),this.config.keypressSound.delete&&(this.deleteKeypressSound=new Audio,this.deleteKeypressSound.preload="none",this.deleteKeypressSound.src=this.config.keypressSound.delete,this.deleteKeypressSound.volume=.5))),this.config.plonkSound&&(this.plonkSound=new Audio,this.plonkSound.preload="none",this.plonkSound.src=this.config.plonkSound,this.plonkSound.volume=.5)},ws.prototype.speak_=function(t,e){e=e||{withHighlighting:!1};const i=function(t,e){let i=null;switch(e){case"all":i=t.mathlist.root;break;case"selection":t.mathlist.isCollapsed()||(i=t.mathlist.getSelectedAtoms());break;case"left":{const e=t.mathlist.siblings(),s=t.mathlist.startOffset();if(s>=1){i=[];for(let t=1;t<=s;t++)i.push(e[t])}break}case"right":{const e=t.mathlist.siblings(),s=t.mathlist.endOffset()+1;if(s<=e.length-1){i=[];for(let t=s;t<=e.length-1;t++)i.push(e[t])}break}case"start":case"end":break;case"group":i=t.mathlist.siblings();break;case"parent":{const e=t.mathlist.parent();e&&"root"!==e.type&&(i=t.mathlist.parent());break}}return i}(this,t);if(null===i)return this.config.handleSpeak(function(t){let e="";switch(t){case"all":break;case"selection":e="no selection";break;case"left":e="at start";break;case"right":e="at end";break;case"group":break;case"parent":e="no parent"}return e}(t)),!1;const s=this.config;e.withHighlighting|"amazon"===s.speechEngine&&(s.textToSpeechMarkup=window.sre&&"sre"===s.textToSpeechRules?"ssml_step":"ssml");const a=de.toSpeakableText(i,s);return e.withHighlighting?(window.mathlive.readAloudMathField=this,this._render({forHighlighting:!0}),this.config.handleReadAloud&&this.config.handleReadAloud(this.field,a,this.config)):this.config.handleSpeak&&this.config.handleSpeak(a,s),!1};var _s={MathField:ws};function Ts(t,e,i){let s=i,a=0;const o=t.length;for(;s<e.length;){const i=e[s];if(a<=0&&e.slice(s,s+o)===t)return s;"\\"===i?s++:"{"===i?a++:"}"===i&&a--,s++}return-1}function Ls(t,e,i,s){const a=[];for(let o=0;o<t.length;o++)if("text"===t[o].type){const n=t[o].data;let r,l=!0,c=0;-1!==(r=n.indexOf(e))&&((c=r)>0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let 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a}(t,i,e,s);if(a&&/\b(mathml|speakable-text)\b/i.test(i.renderAccessibleContent)){const e=document.createDocumentFragment();if(/\bmathml\b/i.test(i.renderAccessibleContent)&&i.renderToMathML&&e.appendChild(function(t,e){const i=document.createElement("span");try{i.innerHTML="<math xmlns='http://www.w3.org/1998/Math/MathML'>"+e.renderToMathML(t,e)+"</math>"}catch(e){i.textContent=t}return i.className="sr-only",i}(t,i)),/\bspeakable-text\b/i.test(i.renderAccessibleContent)&&i.renderToSpeakableText){const s=document.createElement("span");s.innerHTML=i.renderToSpeakableText(t,i),s.className="sr-only",e.appendChild(s)}return e.appendChild(a),e}return a}function Ds(t,e){let i=null;if(e.TeX.processEnvironments&&/^\s*\\begin/.test(t))(i=document.createDocumentFragment()).appendChild(zs(t,void 0,e,!0));else{const s=Fs(t,e.TeX.delimiters);if(1===s.length&&"text"===s[0].type)return null;i=document.createDocumentFragment();for(let t=0;t<s.length;t++)"text"===s[t].type?i.appendChild(document.createTextNode(s[t].data)):i.appendChild(zs(s[t].data,s[t].mathstyle,e,!0))}return i}const Es={namespace:"",skipTags:["noscript","style","textarea","pre","code","annotation","annotation-xml"],processScriptType:"math/tex",ignoreClass:"tex2jax_ignore",processClass:"tex2jax_process",preserveOriginalContent:!0,renderAccessibleContent:"mathml",TeX:{disabled:!1,processEnvironments:!0,delimiters:{inline:[["\\(","\\)"]],display:[["$$","$$"],["\\[","\\]"]]}}};var qs={renderMathInElement:function(t,e){try{if((e=Object.assign({},Es,e)).ignoreClassPattern=new RegExp(e.ignoreClass),e.processClassPattern=new RegExp(e.processClass),e.processScriptTypePattern=new RegExp(e.processScriptType),e.macros=Pt.MACROS,e.namespace){if(!/^[a-z]+[-]?$/.test(e.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(e.namespace)||(e.namespace+="-")}!function t(e,i){const s=e.getAttribute("data-"+i.namespace+"original-content");if(s){const t=zs(s,e.getAttribute("data-"+i.namespace+"mathstyle"),i,!1);null!=t&&(e.textContent="",e.appendChild(t))}else{if(1===e.childNodes.length&&3===e.childNodes[0].nodeType){const t=e.childNodes[0].textContent;if(i.TeX.processEnvironments&&/^\s*\\begin/.test(t))return e.textContent="",void e.appendChild(zs(t,void 0,i,!0));const s=Fs(t,i.TeX.delimiters);if(1===s.length&&"math"===s[0].type)return e.textContent="",void e.appendChild(zs(s[0].data,s[0].mathstyle,i,!0));if(1===s.length&&"text"===s[0].type)return}for(let s=0;s<e.childNodes.length;s++){const a=e.childNodes[s];if(3===a.nodeType){const t=Ds(a.textContent,i);t&&(s+=t.childNodes.length-1,e.replaceChild(t,a))}else if(1===a.nodeType){const e=a.nodeName.toLowerCase();if("script"===e&&i.processScriptTypePattern.test(a.type)){let t="displaystyle";for(const e of a.type.split(";")){const i=e.split("=");"mode"===i[0].toLowerCase()&&(t="display"===i[1].toLoweCase()?"displaystyle":"textstyle")}const e=zs(a.textContent,t,i,!0);a.parentNode.replaceChild(e,a)}else(i.processClassPattern.test(a.className)||!i.skipTags.includes(e)&&!i.ignoreClassPattern.test(a.className))&&t(a,i)}}}}(t,e)}catch(t){Error}}};function Ps(t,e,i,s){e=e||"displaystyle";const a=x.tokenize(t),o=be.parseTokens(a,"math",null,s);if("mathlist"===i)return o;let n=de.decompose({mathstyle:e},o);if(n=et.coalesce(n),"span"===i)return n;const r=et.makeSpan(n,"ML__base"),l=et.makeSpan("","ML__strut");l.setStyle("height",r.height,"em");const c=[l];if(0!==r.depth){const t=et.makeSpan("","ML__strut--bottom");t.setStyle("height",r.height+r.depth,"em"),t.setStyle("vertical-align",-r.depth,"em"),c.push(t)}return c.push(r),et.makeSpan(c,"ML__mathlive").toMarkup()}function Is(t,e){if(!de.toMathML)return"";(e=e||{}).macros=e.macros||{},Object.assign(e.macros,Pt.MACROS);const i=be.parseTokens(x.tokenize(t),"math",null,e.macros);return de.toMathML(i,e)}function Bs(t,e){if(!de.toSpeakableText)return"";(e=e||{}).macros=e.macros||{},Object.assign(e.macros,Pt.MACROS);const i=be.parseTokens(x.tokenize(t),"math",null,e.macros);return de.toSpeakableText(i,e)}function Os(t,e){if(!e&&window&&window.mathlive&&(e=window.mathlive.config),(e=e||{}).speechEngine&&"local"!==e.speechEngine)if("amazon"===e.speechEngine){if(window&&window.AWS){const i=new window.AWS.Polly({apiVersion:"2016-06-10"}),s={OutputFormat:"mp3",VoiceId:e.speechEngineVoice||"Joanna",Text:t,TextType:"ssml"};i.synthesizeSpeech(s,function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),i=new Blob([t.buffer],{type:"audio/mpeg"}),s=URL.createObjectURL(i);new Audio(s).play().catch(t=>void 0)}})}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Rs(t,e,i){if(!window)return;if(!i&&window.mathlive&&(i=window.mathlive.config),"amazon"!==(i=i||{}).speechEngine)return void(i.handleSpeak&&i.handleSpeak(e));if(!window.AWS)return;const s=new window.AWS.Polly({apiVersion:"2016-06-10"}),a={OutputFormat:"json",VoiceId:i.speechEngineVoice||"Joanna",Text:e,TextType:"ssml",SpeechMarkTypes:["ssml"]};window.mathlive=window.mathlive||{},window.mathlive.readAloudElement=t;const o=i.onReadAloudStatus||window.mathlive.onReadAloudStatus;s.synthesizeSpeech(a,function(t,e){if(t);else if(e&&e.AudioStream){const t=new TextDecoder("utf-8").decode(new Uint8Array(e.AudioStream));window.mathlive.readAloudMarks=t.split("\n").map(t=>t?JSON.parse(t):{}),window.mathlive.readAloudTokens=[];for(const t of window.mathlive.readAloudMarks)t.value&&window.mathlive.readAloudTokens.push(t.value);window.mathlive.readAloudCurrentMark="",a.OutputFormat="mp3",a.SpeechMarkTypes=[],s.synthesizeSpeech(a,function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),i=new Blob([t.buffer],{type:"audio/mpeg"}),s=URL.createObjectURL(i);window.mathlive.readAloudAudio?window.mathlive.readAloudAudio.pause():(window.mathlive.readAloudAudio=new Audio,window.mathlive.readAloudAudio.addEventListener("ended",()=>{o&&o(window.mathlive.readAloudMathField,"ended"),window.mathlive.readAloudMathField?(window.mathlive.readAloudMathField._render(),window.mathlive.readAloudElement=null,window.mathlive.readAloudMathField=null,window.mathlive.readAloudTokens=[],window.mathlive.readAloudMarks=[],window.mathlive.readAloudCurrentMark=""):function t(e){e.classList.remove("highlight"),e.children&&Array.from(e.children).forEach(e=>{t(e)})}(window.mathlive.readAloudElement)}),window.mathlive.readAloudAudio.addEventListener("timeupdate",()=>{let t="";const e=1e3*window.mathlive.readAloudAudio.currentTime+100;for(const i of window.mathlive.readAloudMarks)i.time<e&&(t=i.value);window.mathlive.readAloudCurrentMark!==t&&(window.mathlive.readAloudCurrentToken=t,t&&t===window.mathlive.readAloudFinalToken?window.mathlive.readAloudAudio.pause():(window.mathlive.readAloudCurrentMark=t,function t(e,i){i&&e.dataset.atomId!==i?(e.classList.remove("highlight"),e.children&&e.children.length>0&&Array.from(e.children).forEach(e=>{t(e,i)})):(e.classList.add("highlight"),e.children&&e.children.length>0&&Array.from(e.children).forEach(e=>{t(e)}))}(window.mathlive.readAloudElement,window.mathlive.readAloudCurrentMark)))})),window.mathlive.readAloudAudio.src=s,o&&o(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}})}})}function Ks(t){let e=t;if("string"==typeof t&&!(e=document.getElementById(t)))throw Error(`The element with ID "${t}" could not be found.`);return e}function Ns(t,e){qs&&((e=e||{}).renderToMarkup=e.renderToMarkup||Ps,e.renderToMathML=e.renderToMathML||Is,e.renderToSpeakableText=e.renderToSpeakableText||Bs,e.macros=e.macros||Pt.MACROS,qs.renderMathInElement(Ks(t),e))}function $s(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}return{latexToMarkup:Ps,latexToMathML:Is,latexToSpeakableText:Bs,latexToAST:function(t,e){if(!de.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,Pt.MACROS);const i=be.parseTokens(x.tokenize(t),"math",null,e.macros);return de.toAST(i,e)},makeMathField:function(t,e){if(!_s)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Os,e.handleReadAloud=e.handleReadAloud||Rs,new _s.MathField(Ks(t),e)},renderMathInDocument:function(t){Ns(document.body,t)},renderMathInElement:Ns,revertToOriginalContent:function(t,e){(t=(t=Ks(t)).children[1])instanceof _s.MathField?t.revertToOriginalContent():($s(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=Ks(t)).children[1])instanceof _s.MathField?t.originalContent:($s(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Rs,readAloudStatus:function(){return window?(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio?window.mathlive.readAloudAudio.paused?"paused":window.mathlive.readAloudAudio.ended?"ready":"playing":"ready"):"unavailable"},pauseReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"paused"),window.mathlive.readAloudAudio.pause()))},resumeReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()))},playReadAloud:function(t,e){if(window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio)){let i=0;if(window.mathlive.readAloudFinalToken=null,t){window.mathlive.readAloudMarks=window.mathlive.readAloudMarks||[];for(const e of window.mathlive.readAloudMarks)e.value===t&&(i=e.time/1e3);let s=window.mathlive.readAloudTokens.indexOf(t);s>=0&&(s+=e)<window.mathlive.readAloudTokens.length&&(window.mathlive.readAloudFinalToken=s)}window.mathlive.readAloudAudio.currentTime=i,window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}}}},"object"==typeof exports&&"undefined"!=typeof module?module.exports=factory():"function"==typeof define&&define.amd?define(factory):(global=global||self).MathLive=factory();
diff --git a/dist/vue-mathlive.js b/dist/vue-mathlive.js
deleted file mode 100644
index e7b058244..000000000
--- a/dist/vue-mathlive.js
+++ /dev/null
@@ -1,206 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-
-function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
-
-function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
-
-var _default2 = {
-  name: 'mathlive-mathfield',
-  template: '<div class="mathfield" :id="id"><slot></slot></div>',
-  props: {
-    id: {
-      type: String,
-      default: ''
-    },
-    value: {
-      type: String,
-      default: ''
-    },
-    config: {
-      type: Object,
-      default: function _default() {
-        return {};
-      }
-    },
-    onKeystroke: {
-      type: Function,
-      default: function _default(_keystroke, _ev) {
-        return true;
-      }
-    },
-    onMoveOutOf: {
-      type: Function,
-      default: function _default(_direction) {
-        return true;
-      }
-    },
-    onTabOutOf: {
-      type: Function,
-      default: function _default(_direction) {
-        return true;
-      }
-    }
-  },
-
-  /**
-   * To register this component, call:
-   * ```
-   *     import MathLive from './mathlive.mjs';
-   *     import Mathfield from './vue-mathlive.mjs';
-   *     Vue.use(Mathfield, MathLive);
-   * ```
-   * 
-   * The HTML tag for this component is `<mathlive-mathfield>`
-   * 
-   * @param {object} vue - This module, as returned from an import statement
-   * @param {object} mathlive - The MathLive module, as returned from an import
-   * statement
-   */
-  install: function install(vue, mathlive) {
-    // When the component is installed (with Vue.use()), the first argument
-    // should be the component (as received from import) and the second 
-    // should be the MathLive module (also as received from import).
-    // The MathLive module then gets stashed as a property of the Vue 
-    // object to be accessed later by the component implementation.
-    // This allows the user of the component to control which version of 
-    // the MathLive module gets used.
-    Object.defineProperty(vue.prototype, '$mathlive', {
-      value: mathlive
-    });
-    vue.component('mathlive-mathfield', this);
-  },
-  watch: {
-    value: function value(newValue, oldValue) {
-      // When the `value` prop (from the model) is modified
-      // update the mathfield to stay in sync, but don't send back content
-      // change notifications, to avoid infinite loops.
-      if (newValue !== oldValue) {
-        this.$el.mathfield.latex(newValue, {
-          suppressChangeNotifications: true
-        });
-      }
-    },
-    config: {
-      deep: true,
-      handler: function handler(config) {
-        this.$el.mathfield.$setConfig(config);
-      }
-    }
-  },
-  mounted: function mounted() {
-    // A new instance is being created
-    var vm = this; // Keep a reference to the ViewModel
-    // Wait until the DOM has been constructed...
-
-    this.$nextTick(function () {
-      // ... then make the MathField
-      vm.$mathlive.makeMathField(vm.$el, _objectSpread({}, vm.config, {
-        // To support the 'model' directive, this handler will connect 
-        // the content of the mathfield to the ViewModel
-        onContentDidChange: function onContentDidChange(_) {
-          // When the mathfield is updated, notify the model.
-          // The initial input value is generated from the <slot>
-          // content, so it may need to be updated.
-          vm.$emit('input', vm.$el.mathfield.latex());
-        },
-        // Those asynchronous notification handlers are translated to events
-        onFocus: function onFocus(_) {
-          vm.$emit('focus');
-        },
-        onBlur: function onBlur(_) {
-          vm.$emit('blur');
-        },
-        onContentWillChange: function onContentWillChange(_) {
-          vm.$emit('content-will-change');
-        },
-        onSelectionWillChange: function onSelectionWillChange(_) {
-          vm.$emit('selection-will-change');
-        },
-        onUndoStateWillChange: function onUndoStateWillChange(_, command) {
-          vm.$emit('undo-state-will-change', command);
-        },
-        onUndoStateDidChange: function onUndoStateDidChange(_, command) {
-          vm.$emit('undo-state-did-change', command);
-        },
-        onVirtualKeyboardToggle: function onVirtualKeyboardToggle(_, visible, keyboardElement) {
-          vm.$emit('virtual-keyboard-toggle', visible, keyboardElement);
-        },
-        onReadAloudStatus: function onReadAloudStatus(_, status) {
-          vm.$emit('read-aloud-status', status);
-        },
-        // Those notification handlers expect an answer back, so translate
-        // them to callbacks via props
-        onKeystroke: function onKeystroke(_, keystroke, ev) {
-          return vm.onKeystroke(keystroke, ev);
-        },
-        onMoveOutOf: function onMoveOutOf(_, direction) {
-          return vm.onMoveOutOf(direction);
-        },
-        onTabOutOf: function onTabOutOf(_, direction) {
-          return vm.onTabOutOf(direction);
-        }
-      }));
-    });
-  },
-  methods: {
-    /**
-     * 
-     * @param {string} selector 
-     */
-    perform: function perform(selector) {
-      this.$el.mathfield.$perform(selector);
-    },
-
-    /**
-     * @return {boolean}
-     */
-    hasFocus: function hasFocus() {
-      return this.$el.mathfield.$hasFocus();
-    },
-    focus: function focus() {
-      this.$el.mathfield.$focus();
-    },
-    blur: function blur() {
-      this.$el.mathfield.$blur();
-    },
-    text: function text(format) {
-      return this.$el.mathfield.$text(format);
-    },
-    selectedText: function selectedText(format) {
-      return this.$el.mathfield.$selectedText(format);
-    },
-    insert: function insert(text, options) {
-      this.$el.mathfield.$insert(text, options);
-    },
-    keystroke: function keystroke(keys, evt) {
-      return this.$el.mathfield.$keystroke(keys, evt);
-    },
-    typedText: function typedText(text) {
-      this.$el.mathfield.$keystroke(text);
-    },
-    selectionIsCollapsed: function selectionIsCollapsed() {
-      return this.$el.mathfield.$selectionIsCollapsed();
-    },
-    selectionDepth: function selectionDepth() {
-      return this.$el.mathfield.$selectionDepth();
-    },
-    selectionAtStart: function selectionAtStart() {
-      return this.$el.mathfield.$selectionAtStart();
-    },
-    selectionAtEnd: function selectionAtEnd() {
-      return this.$el.mathfield.$selectionAtEnd();
-    },
-    select: function select() {
-      this.$el.mathfield.$select();
-    },
-    clearSelection: function clearSelection() {
-      this.$el.mathfield.$clearSelection();
-    }
-  }
-};
-exports.default = _default2;
\ No newline at end of file

From 72987e1b5a3a38abde3385c9b92f9e4bee214146 Mon Sep 17 00:00:00 2001
From: Arnaud CETOUTE <arnaud.cetoute@hotmail.fr>
Date: Tue, 6 Aug 2019 16:08:59 +0200
Subject: [PATCH 2/2] fix(everithing): build

---
 dist/addons/auto-render.js             |  409 +++
 dist/addons/debug.js                   |  457 +++
 dist/addons/maston.js                  | 2666 ++++++++++++++++
 dist/addons/outputLatex.js             |  628 ++++
 dist/addons/outputMathML.js            |  887 ++++++
 dist/addons/outputSpokenText.js        |  692 ++++
 dist/core/color.js                     |  472 +++
 dist/core/context.js                   |  145 +
 dist/core/definitions.js               | 3777 ++++++++++++++++++++++
 dist/core/delimiters.js                |  609 ++++
 dist/core/fontMetrics.js               |  363 +++
 dist/core/fontMetricsData.js           | 1759 +++++++++++
 dist/core/grapheme-splitter.js         | 1510 +++++++++
 dist/core/lexer.js                     |  339 ++
 dist/core/mathAtom.js                  | 2395 ++++++++++++++
 dist/core/mathstyle.js                 |  213 ++
 dist/core/parser.js                    | 1643 ++++++++++
 dist/core/span.js                      | 1372 ++++++++
 dist/editor/editor-editableMathlist.js | 4004 ++++++++++++++++++++++++
 dist/editor/editor-keyboard.js         |  372 +++
 dist/editor/editor-mathfield.js        | 3980 +++++++++++++++++++++++
 dist/editor/editor-mathpath.js         |  180 ++
 dist/editor/editor-popover.js          |  426 +++
 dist/editor/editor-shortcuts.js        | 1210 +++++++
 dist/editor/editor-undo.js             |  246 ++
 dist/editor/editor-virtualKeyboard.js  | 1357 ++++++++
 dist/editor/l10n.js                    |  243 ++
 dist/editor/outputASCIIMath.js         |  284 ++
 dist/mathlive.js                       |  918 +++++-
 dist/vue-mathlive.js                   |  206 ++
 30 files changed, 33761 insertions(+), 1 deletion(-)
 create mode 100755 dist/addons/auto-render.js
 create mode 100644 dist/addons/debug.js
 create mode 100644 dist/addons/maston.js
 create mode 100644 dist/addons/outputLatex.js
 create mode 100644 dist/addons/outputMathML.js
 create mode 100644 dist/addons/outputSpokenText.js
 create mode 100644 dist/core/color.js
 create mode 100755 dist/core/context.js
 create mode 100644 dist/core/definitions.js
 create mode 100755 dist/core/delimiters.js
 create mode 100755 dist/core/fontMetrics.js
 create mode 100755 dist/core/fontMetricsData.js
 create mode 100644 dist/core/grapheme-splitter.js
 create mode 100644 dist/core/lexer.js
 create mode 100644 dist/core/mathAtom.js
 create mode 100755 dist/core/mathstyle.js
 create mode 100644 dist/core/parser.js
 create mode 100644 dist/core/span.js
 create mode 100644 dist/editor/editor-editableMathlist.js
 create mode 100644 dist/editor/editor-keyboard.js
 create mode 100644 dist/editor/editor-mathfield.js
 create mode 100644 dist/editor/editor-mathpath.js
 create mode 100644 dist/editor/editor-popover.js
 create mode 100644 dist/editor/editor-shortcuts.js
 create mode 100644 dist/editor/editor-undo.js
 create mode 100644 dist/editor/editor-virtualKeyboard.js
 create mode 100644 dist/editor/l10n.js
 create mode 100644 dist/editor/outputASCIIMath.js
 create mode 100644 dist/vue-mathlive.js

diff --git a/dist/addons/auto-render.js b/dist/addons/auto-render.js
new file mode 100755
index 000000000..26d00086d
--- /dev/null
+++ b/dist/addons/auto-render.js
@@ -0,0 +1,409 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+require("../core/mathAtom.js");
+
+var _definitions = _interopRequireDefault(require("../core/definitions.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/* eslint no-console:0 */
+// eslint-disable-line no-unused-vars
+function findEndOfMath(delimiter, text, startIndex) {
+  // Adapted from
+  // https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx
+  var index = startIndex;
+  var braceLevel = 0;
+  var delimLength = delimiter.length;
+
+  while (index < text.length) {
+    var character = text[index];
+
+    if (braceLevel <= 0 && text.slice(index, index + delimLength) === delimiter) {
+      return index;
+    } else if (character === '\\') {
+      index++;
+    } else if (character === '{') {
+      braceLevel++;
+    } else if (character === '}') {
+      braceLevel--;
+    }
+
+    index++;
+  }
+
+  return -1;
+}
+
+function splitAtDelimiters(startData, leftDelim, rightDelim, mathstyle) {
+  var finalData = [];
+
+  for (var i = 0; i < startData.length; i++) {
+    if (startData[i].type === 'text') {
+      var text = startData[i].data;
+      var lookingForLeft = true;
+      var currIndex = 0;
+      var nextIndex = void 0;
+      nextIndex = text.indexOf(leftDelim);
+
+      if (nextIndex !== -1) {
+        currIndex = nextIndex;
+
+        if (currIndex > 0) {
+          finalData.push({
+            type: 'text',
+            data: text.slice(0, currIndex)
+          });
+        }
+
+        lookingForLeft = false;
+      }
+
+      var done = false;
+
+      while (!done) {
+        if (lookingForLeft) {
+          nextIndex = text.indexOf(leftDelim, currIndex);
+
+          if (nextIndex === -1) {
+            done = true;
+            break;
+          }
+
+          if (currIndex !== nextIndex) {
+            finalData.push({
+              type: 'text',
+              data: text.slice(currIndex, nextIndex)
+            });
+          }
+
+          currIndex = nextIndex;
+        } else {
+          nextIndex = findEndOfMath(rightDelim, text, currIndex + leftDelim.length);
+
+          if (nextIndex === -1) {
+            done = true;
+            break;
+          }
+
+          finalData.push({
+            type: 'math',
+            data: text.slice(currIndex + leftDelim.length, nextIndex),
+            rawData: text.slice(currIndex, nextIndex + rightDelim.length),
+            mathstyle: mathstyle
+          });
+          currIndex = nextIndex + rightDelim.length;
+        }
+
+        lookingForLeft = !lookingForLeft;
+      }
+
+      if (currIndex < text.length) {
+        finalData.push({
+          type: 'text',
+          data: text.slice(currIndex)
+        });
+      }
+    } else {
+      finalData.push(startData[i]);
+    }
+  }
+
+  return finalData;
+}
+
+function splitWithDelimiters(text, delimiters) {
+  var data = [{
+    type: 'text',
+    data: text
+  }];
+
+  for (var i = 0; i < delimiters.inline.length; i++) {
+    var delimiter = delimiters.inline[i];
+    data = splitAtDelimiters(data, delimiter[0], delimiter[1], 'textstyle');
+  }
+
+  for (var _i = 0; _i < delimiters.display.length; _i++) {
+    var _delimiter = delimiters.display[_i];
+    data = splitAtDelimiters(data, _delimiter[0], _delimiter[1], 'displaystyle');
+  }
+
+  return data;
+}
+
+function createMathMLNode(latex, options) {
+  // Create a node for AT (Assistive Technology, e.g. screen reader) to speak, etc.
+  // This node has a style that makes it be invisible to display but is seen by AT
+  var span = document.createElement('span');
+
+  try {
+    span.innerHTML = "<math xmlns='http://www.w3.org/1998/Math/MathML'>" + options.renderToMathML(latex, options) + "</math>";
+  } catch (e) {
+    console.error('Could not convert\'' + latex + '\' to MathML with ', e);
+    span.textContent = latex;
+  }
+
+  span.className = 'sr-only';
+  return span;
+}
+
+function createMarkupNode(text, options, mathstyle, createNodeOnFailure) {
+  // Create a node for displaying math.
+  //   This is slightly ugly because in the case of failure to create the markup,
+  //   sometimes a text node is desired and sometimes not.
+  //   'createTextNodeOnFailure' controls this and null is returned when no node is created.
+  // This node is made invisible to AT (screen readers)
+  var span = document.createElement('span');
+  span.setAttribute('aria-hidden', 'true');
+
+  if (options.preserveOriginalContent) {
+    span.setAttribute('data-' + options.namespace + 'original-content', text);
+
+    if (mathstyle) {
+      span.setAttribute('data-' + options.namespace + 'original-mathstyle', mathstyle);
+    }
+  }
+
+  try {
+    span.innerHTML = options.renderToMarkup(text, mathstyle || 'displaystyle', 'html', options.macros);
+  } catch (e) {
+    console.error('Could not parse\'' + text + '\' with ', e);
+
+    if (createNodeOnFailure) {
+      span = document.createTextNode(text);
+    } else {
+      return null;
+    }
+  }
+
+  return span;
+}
+
+function createAccessibleMarkupPair(text, mathstyle, options, createNodeOnFailure) {
+  // Create a math node (a span with an accessible component and a visual component)
+  // If there is an error in parsing the latex, 'createNodeOnFailure' controls whether
+  //   'null' is returned or an accessible node with the text used.
+  var markupNode = createMarkupNode(text, options, mathstyle, createNodeOnFailure);
+
+  if (markupNode && /\b(mathml|speakable-text)\b/i.test(options.renderAccessibleContent)) {
+    var fragment = document.createDocumentFragment();
+
+    if (/\bmathml\b/i.test(options.renderAccessibleContent) && options.renderToMathML) {
+      fragment.appendChild(createMathMLNode(text, options));
+    }
+
+    if (/\bspeakable-text\b/i.test(options.renderAccessibleContent) && options.renderToSpeakableText) {
+      var span = document.createElement('span');
+      span.innerHTML = options.renderToSpeakableText(text, options);
+      span.className = 'sr-only';
+      fragment.appendChild(span);
+    }
+
+    fragment.appendChild(markupNode);
+    return fragment;
+  }
+
+  return markupNode;
+}
+
+function scanText(text, options) {
+  // If the text starts with '\begin'...
+  // (this is a MathJAX behavior)
+  var fragment = null;
+
+  if (options.TeX.processEnvironments && /^\s*\\begin/.test(text)) {
+    fragment = document.createDocumentFragment();
+    fragment.appendChild(createAccessibleMarkupPair(text, undefined, options, true));
+  } else {
+    var data = splitWithDelimiters(text, options.TeX.delimiters);
+
+    if (data.length === 1 && data[0].type === 'text') {
+      // This text contains no math. No need to continue processing
+      return null;
+    }
+
+    fragment = document.createDocumentFragment();
+
+    for (var i = 0; i < data.length; i++) {
+      if (data[i].type === 'text') {
+        fragment.appendChild(document.createTextNode(data[i].data));
+      } else {
+        fragment.appendChild(createAccessibleMarkupPair(data[i].data, data[i].mathstyle, options, true));
+      }
+    }
+  }
+
+  return fragment;
+}
+
+function scanElement(elem, options) {
+  var originalContent = elem.getAttribute('data-' + options.namespace + 'original-content');
+
+  if (originalContent) {
+    var mathstyle = elem.getAttribute('data-' + options.namespace + 'mathstyle');
+    var span = createAccessibleMarkupPair(originalContent, mathstyle, options, false);
+
+    if (span != null) {
+      elem.textContent = '';
+      elem.appendChild(span);
+    }
+
+    return;
+  }
+
+  if (elem.childNodes.length === 1 && elem.childNodes[0].nodeType === 3) {
+    // This is a node with textual content only. Perhaps an opportunity
+    // to simplify and avoid creating extra nested elements...
+    var text = elem.childNodes[0].textContent;
+
+    if (options.TeX.processEnvironments && /^\s*\\begin/.test(text)) {
+      elem.textContent = '';
+      elem.appendChild(createAccessibleMarkupPair(text, undefined, options, true));
+      return;
+    }
+
+    var data = splitWithDelimiters(text, options.TeX.delimiters);
+
+    if (data.length === 1 && data[0].type === 'math') {
+      // The entire content is a math expression: we can replace the content
+      // with the latex markup without creating additional wrappers.
+      elem.textContent = '';
+      elem.appendChild(createAccessibleMarkupPair(data[0].data, data[0].mathstyle, options, true));
+      return;
+    } else if (data.length === 1 && data[0].type === 'text') {
+      // This element only contained text with no math. No need to
+      // do anything.
+      return;
+    }
+  }
+
+  for (var i = 0; i < elem.childNodes.length; i++) {
+    var childNode = elem.childNodes[i];
+
+    if (childNode.nodeType === 3) {
+      // A text node
+      // Look for math mode delimiters inside the text
+      var frag = scanText(childNode.textContent, options);
+
+      if (frag) {
+        i += frag.childNodes.length - 1;
+        elem.replaceChild(frag, childNode);
+      }
+    } else if (childNode.nodeType === 1) {
+      // An element node
+      var tag = childNode.nodeName.toLowerCase();
+
+      if (tag === 'script' && options.processScriptTypePattern.test(childNode.type)) {
+        var style = 'displaystyle';
+        var _iteratorNormalCompletion = true;
+        var _didIteratorError = false;
+        var _iteratorError = undefined;
+
+        try {
+          for (var _iterator = childNode.type.split(';')[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+            var l = _step.value;
+            var v = l.split('=');
+
+            if (v[0].toLowerCase() === 'mode') {
+              if (v[1].toLoweCase() === 'display') {
+                style = 'displaystyle';
+              } else {
+                style = 'textstyle';
+              }
+            }
+          }
+        } catch (err) {
+          _didIteratorError = true;
+          _iteratorError = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion && _iterator.return != null) {
+              _iterator.return();
+            }
+          } finally {
+            if (_didIteratorError) {
+              throw _iteratorError;
+            }
+          }
+        }
+
+        var _span = createAccessibleMarkupPair(childNode.textContent, style, options, true);
+
+        childNode.parentNode.replaceChild(_span, childNode);
+      } else {
+        // Element node
+        var shouldRender = options.processClassPattern.test(childNode.className) || !(options.skipTags.includes(tag) || options.ignoreClassPattern.test(childNode.className));
+
+        if (shouldRender) {
+          scanElement(childNode, options);
+        }
+      }
+    } // Otherwise, it's something else, and ignore it.
+
+  }
+}
+
+var defaultOptions = {
+  // Optional namespace for the `data-` attributes.
+  namespace: '',
+  // Name of tags whose content will not be scanned for math delimiters
+  skipTags: ['noscript', 'style', 'textarea', 'pre', 'code', 'annotation', 'annotation-xml'],
+  // <script> tags of the following types will be processed. Others, ignored.
+  processScriptType: "math/tex",
+  // Regex pattern of the class name of elements whose contents should not
+  // be processed
+  ignoreClass: "tex2jax_ignore",
+  // Regex pattern of the class name of elements whose contents should
+  // be processed when they appear inside ones that are ignored.
+  processClass: "tex2jax_process",
+  // Indicate whether to preserve or discard the original content of the
+  // elements being rendered in a 'data-original-content' attribute.
+  preserveOriginalContent: true,
+  // Indicate the format to use to render accessible content
+  renderAccessibleContent: 'mathml',
+  TeX: {
+    disabled: false,
+    processEnvironments: true,
+    delimiters: {
+      inline: [['\\(', '\\)']],
+      display: [['$$', '$$'], ['\\[', '\\]']]
+    }
+  }
+};
+
+function renderMathInElement(elem, options) {
+  try {
+    options = Object.assign({}, defaultOptions, options);
+    options.ignoreClassPattern = new RegExp(options.ignoreClass);
+    options.processClassPattern = new RegExp(options.processClass);
+    options.processScriptTypePattern = new RegExp(options.processScriptType);
+    options.macros = _definitions.default.MACROS; // Validate the namespace (used for `data-` attributes)
+
+    if (options.namespace) {
+      if (!/^[a-z]+[-]?$/.test(options.namespace)) {
+        throw Error('options.namespace must be a string of lowercase characters only');
+      }
+
+      if (!/-$/.test(options.namespace)) {
+        options.namespace += '-';
+      }
+    }
+
+    scanElement(elem, options);
+  } catch (e) {
+    if (e instanceof Error) {
+      console.error('renderMathInElement(): ' + e.message);
+    } else {
+      console.error('renderMathInElement(): Could not render math for element ' + elem);
+    }
+  }
+}
+
+var _default = {
+  renderMathInElement: renderMathInElement
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/addons/debug.js b/dist/addons/debug.js
new file mode 100644
index 000000000..900a0b3ec
--- /dev/null
+++ b/dist/addons/debug.js
@@ -0,0 +1,457 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.latexToAsciiMath = latexToAsciiMath;
+exports.asciiMathToLatex = asciiMathToLatex;
+exports.default = void 0;
+
+var _outputASCIIMath = require("../editor/outputASCIIMath.js");
+
+var _lexer = _interopRequireDefault(require("../core/lexer.js"));
+
+var _parser = _interopRequireDefault(require("../core/parser.js"));
+
+var _editorEditableMathlist = require("../editor/editor-editableMathlist.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * This module contains utilities to debug mathlive internal data structures.
+ * 
+ * It is also used by the automated test suite.
+ * 
+ * @module addons/debug
+ * @private
+ */
+function latexToAsciiMath(latex, mode) {
+  mode = mode || 'math';
+
+  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), mode, null, null);
+
+  return (0, _outputASCIIMath.toASCIIMath)(mathlist);
+}
+
+function asciiMathToLatex(ascii) {
+  return (0, _editorEditableMathlist.parseMathString)(ascii, {
+    format: 'ASCIIMath'
+  });
+}
+/**
+ * 
+ * @param {object[]} spans 
+ * @param {string|number|number[]} symbol specify which span to consider. 
+ * If a string, a span whose body match the string
+ * If a number, the nth span in the list
+ * If an array, each element in the array indicate the nth child to traverse
+ * @private
+ */
+
+
+function getSymbol(spans, symbol) {
+  if (!spans) return null;
+  var childSymbol = null;
+
+  if (Array.isArray(symbol)) {
+    childSymbol = symbol.slice(); // Clone the array
+
+    symbol = childSymbol.shift(); // Get the first element and remove it from the array
+  }
+
+  var result = null;
+
+  if (typeof symbol === 'number' && symbol < spans.length) {
+    if (childSymbol && childSymbol.length > 0) {
+      return getSymbol(spans[symbol].children, childSymbol);
+    }
+
+    return spans[symbol];
+  } else if (typeof symbol === 'string') {
+    for (var i = 0; i < spans.length; i++) {
+      // Does this span match the symbol we're looking for?
+      if (spans[i].body === symbol) {
+        if (childSymbol && childSymbol.length > 0) {
+          return getSymbol(spans[i].children, childSymbol);
+        }
+
+        return spans[i];
+      } // If not, try its children
+
+
+      result = getSymbol(spans[i].children, symbol);
+      if (result) return result;
+    }
+
+    return result;
+  }
+
+  return null;
+}
+
+function getProp(spans, symbol, prop) {
+  var s = getSymbol(spans, symbol);
+  if (s) return s[prop];
+  return null;
+}
+/**
+ * Return the type ('mbin', etc...) of a span
+ * @param {Span[]} spans 
+ * @param {string} symbol 
+ * @return {string}
+ * @private
+*/
+
+
+function getType(spans, symbol) {
+  var s = getSymbol(spans, symbol);
+  if (s) return s.type;
+  return null;
+}
+/**
+ * Return the tag ('span', 'var', etc...) of a span
+ * @param {Span[]} spans 
+ * @param {string} symbol 
+ * @return {string}
+ * @private
+*/
+
+
+function getTag(spans, symbol) {
+  var s = getSymbol(spans, symbol);
+  if (s) return s.tag;
+  return null;
+}
+
+function getStyle(spans, symbol, prop) {
+  var s = getSymbol(spans, symbol);
+  if (s && s.style) return s.style[prop];
+  return null;
+}
+
+function getClasses(spans, symbol) {
+  var s = getSymbol(spans, symbol);
+  if (s) return s.classes || '';
+  return null;
+}
+
+function hasClass(spans, symbol, cls) {
+  var classes = getClasses(spans, symbol);
+  if (!classes) return false;
+  classes = classes.split(' ');
+
+  for (var j = 0; j < classes.length; j++) {
+    if (classes[j] === cls) return true;
+  }
+
+  return false;
+} ////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+
+function spanToString(span, indent) {
+  indent = indent || '';
+  var result = '';
+
+  if (Array.isArray(span)) {
+    if (span.length === 0) {
+      result += '[]\n';
+    } else {
+      result += '[\n';
+
+      for (var i = 0; i < span.length; i++) {
+        result += spanToString(span[i], '\t' + indent + i + ',');
+        result += i < span.length - 1 ? ',\n' : '\n';
+      }
+
+      result += indent + ']\n';
+    }
+  } else {
+    result = indent + '{\n';
+
+    if (span.type) {
+      result += indent + 'type:"' + span.type + '",\n';
+    }
+
+    if (span.body && span.body.length > 0) {
+      result += indent + 'body:"' + span.body + '",\n';
+    }
+
+    if (span.classes && span.classes.length > 0) {
+      result += indent + 'classes:"' + span.classes + '",\n';
+    }
+
+    if (span.style) {
+      for (var s in span.style) {
+        if (span.style.hasOwnProperty(s)) {
+          result += indent + s + ':"';
+          result += span.style[s] + '",\n';
+        }
+      }
+    }
+
+    if (span.children && span.children.length > 0) {
+      result += indent + 'children:' + spanToString(span.children, indent);
+    }
+
+    result += indent + '}';
+  }
+
+  return result;
+}
+
+function mathlistPropToString(mathlist, prop, indent) {
+  var value = mathlist[prop];
+
+  if (typeof value === 'string') {
+    return indent + prop + ':"' + value + '",\n';
+  } else if (typeof value === 'boolean') {
+    return indent + prop + ':' + value + ',\n';
+  } else if (typeof value === 'number') {
+    return indent + prop + ':' + value + ',\n';
+  } else if (Array.isArray(value)) {
+    return indent + prop + ':' + mathlistToString(value, indent + '\t') + ',\n';
+  }
+
+  return '';
+}
+
+function mathlistToString(mathlist, indent) {
+  if (!mathlist) return '';
+  indent = indent || '';
+  var result = '';
+
+  if (Array.isArray(mathlist)) {
+    if (mathlist.length === 0) return '';
+    result += '[\n';
+
+    for (var i = 0; i < mathlist.length; i++) {
+      result += mathlistToString(mathlist[i], indent + '\t') + ',\n';
+    }
+
+    result += indent + ']\n';
+  } else {
+    result = indent + '{\n';
+    result += mathlistPropToString(mathlist, 'type', indent);
+    result += mathlistPropToString(mathlist, 'value', indent);
+    result += mathlistPropToString(mathlist, 'fontFamily', indent); // Type 'genfrac'
+
+    result += mathlistPropToString(mathlist, 'hasBarLine', indent);
+    result += mathlistPropToString(mathlist, 'leftDelim', indent);
+    result += mathlistPropToString(mathlist, 'rightDelim', indent);
+    result += mathlistPropToString(mathlist, 'numer', indent);
+    result += mathlistPropToString(mathlist, 'denom', indent); // Type...?
+
+    result += mathlistPropToString(mathlist, 'limits', indent);
+    result += mathlistPropToString(mathlist, 'symbol', indent); // Type 'color'
+
+    result += mathlistPropToString(mathlist, 'framecolor', indent); // Type 'line'
+
+    result += mathlistPropToString(mathlist, 'position', indent); // Type 'mathstyle'
+
+    result += mathlistPropToString(mathlist, 'mathstyle', indent); // Common
+
+    result += mathlistPropToString(mathlist, 'superscript', indent);
+    result += mathlistPropToString(mathlist, 'subscript', indent);
+    result += mathlistPropToString(mathlist, 'body', indent);
+    result += mathlistPropToString(mathlist, 'array', indent);
+    result += indent + '}';
+  }
+
+  return result;
+} ////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+
+function spanToMarkup(span, indent) {
+  indent = indent || ''; // if (indent.length === 0) {
+  //     result += '<table>';
+  // }
+
+  var result = '';
+
+  if (Array.isArray(span)) {
+    for (var i = 0; i < span.length; i++) {
+      result += spanToMarkup(span[i], indent);
+    }
+  } else if (span && span.tag !== 'table') {
+    result = '<br>' + indent;
+
+    if (span.classes.includes('fontsize-ensurer')) {
+      result += 'FONTSIZE-ENSURER';
+    } else {
+      if (span.type) {
+        result += '<span class="type">' + span.type + '</span>';
+      }
+
+      if (span.body && span.body.length > 0) {
+        result += '<span class="value">' + span.body + '</span>';
+      }
+
+      if (span.classes && span.classes.length > 0) {
+        result += '&nbsp;<span class="classes">' + span.classes + '</span>';
+      }
+
+      if (span.isTight) {
+        result += '&nbsp;<span class="stylevalue"> tight </span>';
+      }
+
+      if (span.caret) {
+        result += '&nbsp;<span class="stylevalue"> caret </span>';
+      }
+
+      if (span.style) {
+        for (var s in span.style) {
+          if (span.style.hasOwnProperty(s)) {
+            result += '&nbsp;<span class="styleprop">' + s + ':</span>';
+            result += '<span class="stylevalue"> ' + span.style[s] + '</span>;&nbsp;';
+          }
+        }
+      }
+
+      if (span.children) {
+        result += spanToMarkup(span.children, indent + '▷');
+      }
+    }
+  } else if (span) {
+    result += '<br>' + indent + 'table ' + span.array[0].length + '&times;' + span.array.length;
+
+    for (var _i = 0; _i < span.array.length; _i++) {
+      for (var j = 0; j < span.array[_i].length; j++) {
+        result += '<br>' + indent + '[' + (_i + 1) + ', ' + (j + 1) + '] ';
+        result += spanToMarkup(span.array[_i][j], '');
+      }
+    }
+  }
+
+  return result;
+}
+
+function mathListColorToMarkup(mathlist, propname) {
+  var result = '';
+
+  if (mathlist[propname]) {
+    result += '<span class="styleprop">' + propname + '=</span>';
+    result += '<span style="font-size:2em;vertical-align:middle;color:' + mathlist[propname] + '">&#9632;</span>';
+    result += '<span class="stylevalue">';
+    result += mathlist[propname];
+    result += '</span>';
+  }
+
+  return result;
+}
+
+function mathListPropToMarkup(mathlist, propname) {
+  var result = '';
+
+  if (mathlist[propname]) {
+    result += '<span class="styleprop">' + propname + '=</span>';
+    result += '<span class="stylevalue">';
+    result += mathlist[propname];
+    result += '</span>" ';
+  }
+
+  return result;
+}
+
+function mathlistToMarkup(mathlist, indent) {
+  if (!mathlist) return '';
+  indent = indent || '';
+  var result = '';
+
+  if (Array.isArray(mathlist)) {
+    for (var i = 0; i < mathlist.length; i++) {
+      result += mathlistToMarkup(mathlist[i], i + '.' + indent);
+    }
+  } else {
+    result = '<br>' + indent;
+
+    if (mathlist.type) {
+      result += '<span class="type';
+      result += mathlist.isSelected ? ' selected' : '';
+      result += mathlist.caret ? ' caret' : '';
+      result += '">' + mathlist.type + (mathlist.caret ? ' caret ' : '') + '</span>';
+    }
+
+    if (typeof mathlist.body === 'string' && mathlist.body.length > 0) {
+      result += '&nbsp;<span class="value">';
+      result += mathlist.body;
+
+      if (mathlist.body.charCodeAt(0) < 32 || mathlist.body.charCodeAt(0) > 127) {
+        result += '&nbsp;U+' + ('000000' + mathlist.body.charCodeAt(0).toString(16)).substr(-6);
+      }
+
+      result += '</span>&nbsp;';
+    }
+
+    if (mathlist.fontFamily === 'mathrm') {
+      result += '<span style="opacity:.2">';
+      result += mathListPropToMarkup(mathlist, 'fontFamily');
+      result += '</span>';
+    } else {
+      result += mathListPropToMarkup(mathlist, 'fontFamily');
+    } // Type 'genfrac'
+
+
+    result += mathListPropToMarkup(mathlist, 'hasBarLine');
+    result += mathListPropToMarkup(mathlist, 'leftDelim');
+    result += mathListPropToMarkup(mathlist, 'rightDelim');
+    result += mathListPropToMarkup(mathlist, 'continuousFraction'); // Type...?
+
+    result += mathListPropToMarkup(mathlist, 'limits');
+    result += mathListPropToMarkup(mathlist, 'symbol'); // Type 'color'
+
+    result += mathListColorToMarkup(mathlist, 'framecolor'); // Type 'mathstyle'
+
+    result += mathListPropToMarkup(mathlist, 'mathstyle'); // Type 'sizeddelim'
+
+    result += mathListPropToMarkup(mathlist, 'size');
+    result += mathListPropToMarkup(mathlist, 'cls');
+    result += mathListPropToMarkup(mathlist, 'delim'); // Type 'rule'
+
+    result += mathListPropToMarkup(mathlist, 'shift');
+    result += mathListPropToMarkup(mathlist, 'width');
+    result += mathListPropToMarkup(mathlist, 'height'); // Type 'line'
+
+    result += mathListPropToMarkup(mathlist, 'position'); // Type 'overunder'
+
+    result += mathlistToMarkup(mathlist.overscript, indent + '↑');
+    result += mathlistToMarkup(mathlist.underscript, indent + '↓');
+    result += mathlistToMarkup(mathlist.superscript, indent + '↑');
+    result += mathlistToMarkup(mathlist.subscript, indent + '↓');
+    result += mathlistToMarkup(mathlist.body, indent + '▶');
+    result += mathlistToMarkup(mathlist.numer, indent + "\u25B2");
+    result += mathlistToMarkup(mathlist.denom, indent + "\u25BC");
+
+    if (mathlist.array) {
+      for (var _i2 = 0; _i2 < mathlist.array.length; _i2++) {
+        result += '<br>' + indent + "\u2317 row " + (_i2 + 1) + '/' + mathlist.array.length;
+
+        for (var j = 0; j < mathlist.array[_i2].length; j++) {
+          result += mathlistToMarkup(mathlist.array[_i2][j], indent + "\u2317\u232A");
+        }
+      }
+    }
+  }
+
+  return result;
+} // Export the public interface for this module
+
+
+var _default = {
+  mathlistToMarkup: mathlistToMarkup,
+  spanToMarkup: spanToMarkup,
+  mathlistToString: mathlistToString,
+  spanToString: spanToString,
+  hasClass: hasClass,
+  getClasses: getClasses,
+  getProp: getProp,
+  getStyle: getStyle,
+  getType: getType,
+  getTag: getTag,
+  latexToAsciiMath: latexToAsciiMath,
+  asciiMathToLatex: asciiMathToLatex
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/addons/maston.js b/dist/addons/maston.js
new file mode 100644
index 000000000..575b0b380
--- /dev/null
+++ b/dist/addons/maston.js
@@ -0,0 +1,2666 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _lexer = _interopRequireDefault(require("../core/lexer.js"));
+
+var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
+
+var _parser = _interopRequireDefault(require("../core/parser.js"));
+
+var _definitions = _interopRequireDefault(require("../core/definitions.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
+
+function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
+
+function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
+
+function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
+
+function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }
+
+function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
+
+function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
+
+function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+var CANONICAL_NAMES = {
+  // CONSTANTS
+  '\\imaginaryI': "\u2148",
+  '\\imaginaryJ': "\u2149",
+  '\\pi': 'π',
+  '\\exponentialE': "\u212F",
+  // ARITHMETIC
+  '﹢': '+',
+  // SMALL PLUS SIGN
+  '＋': '+',
+  // FULL WIDTH PLUS SIGN
+  '−': '-',
+  // MINUS SIGN
+  '-': '-',
+  // HYPHEN-MINUS
+  '﹣': '-',
+  // SMALL HYPHEN-MINUS
+  '－': '-',
+  // FULLWIDTH HYPHEN-MINUS
+  '\\times': '*',
+  '\\cdot': '*',
+  '⨉': '*',
+  // N-ARY TIMES OPERATOR U+
+  '️✖': '*',
+  // MULTIPLICATION SYMBOL
+  '️×': '*',
+  // MULTIPLICATION SIGN
+  '.': '*',
+  '÷': '/',
+  // DIVISION SIGN
+  // '/':             '/',        // SOLIDUS
+  '⁄': '/',
+  // FRACTION SLASH
+  '／': '/',
+  // FULLWIDTH SOLIDUS
+  '!': 'factorial',
+  '\\mp': 'minusplus',
+  // MINUS-PLUS SIGN
+  '\\ne': '!=',
+  '\\coloneq': ':=',
+  '\\questeq': '?=',
+  '\\approx': 'approx',
+  '\\cong': 'congruent',
+  '\\sim': 'similar',
+  '\\equiv': 'equiv',
+  '\\pm': 'plusminus',
+  // PLUS-MINUS SIGN
+  '\\land': 'and',
+  '\\wedge': 'and',
+  '\\lor': 'or',
+  '\\vee': 'or',
+  '\\oplus': 'xor',
+  '\\veebar': 'xor',
+  '\\lnot': 'not',
+  '\\neg': 'not',
+  '\\exists': 'exists',
+  '\\nexists': '!exists',
+  '\\forall': 'forAll',
+  '\\backepsilon': 'suchThat',
+  '\\therefore': 'therefore',
+  '\\because': 'because',
+  '\\nabla': 'nabla',
+  '\\circ': 'circle',
+  // '\\oplus':       'oplus',
+  '\\ominus': 'ominus',
+  '\\odot': 'odot',
+  '\\otimes': 'otimes',
+  '\\zeta': 'Zeta',
+  '\\Gamma': 'Gamma',
+  '\\min': 'min',
+  '\\max': 'max',
+  '\\mod': 'mod',
+  '\\lim': 'lim',
+  // BIG OP
+  '\\sum': 'sum',
+  '\\prod': 'prod',
+  '\\int': 'integral',
+  '\\iint': 'integral2',
+  '\\iiint': 'integral3',
+  '\\Re': 'Re',
+  '\\gothicCapitalR': 'Re',
+  '\\Im': 'Im',
+  '\\gothicCapitalI': 'Im',
+  '\\binom': 'nCr',
+  '\\partial': 'partial',
+  '\\differentialD': 'differentialD',
+  '\\capitalDifferentialD': 'capitalDifferentialD',
+  '\\Finv': 'Finv',
+  '\\Game': 'Game',
+  '\\wp': 'wp',
+  '\\ast': 'ast',
+  '\\star': 'star',
+  '\\asymp': 'asymp',
+  // Function domain, limits
+  '\\to': 'to',
+  // Looks like \rightarrow
+  '\\gets': 'gets',
+  // Looks like \leftarrow
+  // Logic
+  '\\rightarrow': 'shortLogicalImplies',
+  '\\leftarrow': 'shortLogicalImpliedBy',
+  '\\leftrightarrow': 'shortLogicalEquivalent',
+  '\\longrightarrow': 'logicalImplies',
+  '\\longleftarrow': 'logicalImpliedBy',
+  '\\longleftrightarrow': 'logicalEquivalent',
+  // Metalogic
+  '\\Rightarrow': 'shortImplies',
+  '\\Leftarrow': 'shortImpliedBy',
+  '\\Leftrightarrow': 'shortEquivalent',
+  '\\implies': 'implies',
+  '\\Longrightarrow': 'implies',
+  '\\impliedby': 'impliedBy',
+  '\\Longleftarrow': 'impliedBy',
+  '\\iff': 'equivalent',
+  '\\Longleftrightarrow': 'equivalent' // The OP_NAME table maps a canonical name to a function name
+
+};
+var OP_NAME = {
+  '+': 'add',
+  '*': 'multiply',
+  '-': 'subtract',
+  '/': 'divide',
+  '=': 'equal',
+  ':=': 'assign',
+  '!=': 'ne',
+  '?=': 'questeq',
+  'approx': 'approx',
+  'congruent': 'congruent',
+  'similar': 'similar',
+  'equiv': 'equiv',
+  '<': 'lt',
+  '>': 'gt',
+  '<=': 'le',
+  '>=': 'ge',
+  '≤': 'le',
+  '≥': 'ge',
+  '>>': 'gg',
+  '<<': 'll',
+  '**': 'pow',
+  '++': 'increment',
+  '--': 'decrement' // The FUNCTION_TEMPLATE table maps a canonical name to a LaTeX template
+
+};
+var FUNCTION_TEMPLATE = {
+  'equal': '%0 = %1',
+  'ne': '%0 \\ne %1',
+  'questeq': '%0 \\questeq %1',
+  'approx': '%0 \\approx %1',
+  'congruent': '%0 \\cong %1',
+  'similar': '%0 \\sim %1',
+  'equiv': '%0 \\equiv %1',
+  'assign': '%0 := %1',
+  'lt': '%0 < %1',
+  'gt': '%0 > %1',
+  'le': '%0 \\le %1',
+  'ge': '%0 \\ge %1',
+  // TRIGONOMETRY
+  'sin': '\\sin%_%^ %0',
+  'cos': '\\cos%_%^ %0',
+  'tan': '\\tan%_%^ %0',
+  'cot': '\\cot%_%^ %0',
+  'sec': '\\sec%_%^ %0',
+  'csc': '\\csc%_%^ %0',
+  'sinh': '\\sinh %0',
+  'cosh': '\\cosh %0',
+  'tanh': '\\tanh %0',
+  'csch': '\\csch %0',
+  'sech': '\\sech %0',
+  'coth': '\\coth %0',
+  'arcsin': '\\arcsin %0',
+  'arccos': '\\arccos %0',
+  'arctan': '\\arctan %0',
+  'arccot': '\\arcctg %0',
+  // Check
+  'arcsec': '\\arcsec %0',
+  'arccsc': '\\arccsc %0',
+  'arsinh': '\\arsinh %0',
+  'arcosh': '\\arcosh %0',
+  'artanh': '\\artanh %0',
+  'arcsch': '\\arcsch %0',
+  'arsech': '\\arsech %0',
+  'arcoth': '\\arcoth %0',
+  // LOGARITHMS
+  'ln': '\\ln%_%^ %',
+  // Natural logarithm
+  'log': '\\log%_%^ %',
+  // General logarithm, e.g. log_10
+  'lg': '\\lg %',
+  // Common, base-10, logarithm
+  'lb': '\\lb %',
+  // Binary, base-2, logarithm
+  // Big operator
+  'sum': '\\sum%_%^ %0',
+  'prod': '\\prod%_%^ %0',
+  // OTHER
+  'Zeta': '\\zeta%_%^ %',
+  // Riemann Zeta function
+  'Gamma': '\\Gamma %',
+  // Gamma function, such that Gamma(n) = (n - 1)!
+  'min': '\\min%_%^ %',
+  'max': '\\max%_%^ %',
+  'mod': '\\mod%_%^ %',
+  'lim': '\\lim%_%^ %',
+  // BIG OP
+  'binom': '\\binom %',
+  'nabla': '\\nabla %',
+  'curl': '\\nabla\\times %0',
+  'div': '\\nabla\\cdot %0',
+  'floor': '\\lfloor %0 \\rfloor%_%^',
+  'ceil': '\\lceil %0 \\rceil%_%^',
+  'abs': '\\left| %0 \\right|%_%^',
+  'norm': '\\lVert %0 \\rVert%_%^',
+  'ucorner': "\\ulcorner %0 \\urcorner%_%^",
+  'lcorner': '\\llcorner %0 \\lrcorner%_%^',
+  'angle': '\\langle %0 \\rangle%_%^',
+  'group': '\\lgroup %0 \\rgroup%_%^',
+  'moustache': '\\lmoustache %0 \\rmoustache%_%^',
+  'brace': '\\lbrace %0 \\rbrace%_%^',
+  'sqrt[]': '\\sqrt[%^]{%0}',
+  // Template used when there's an index
+  'sqrt': '\\sqrt{%0}',
+  'lcm': '\\operatorname{lcm}%',
+  'gcd': '\\operatorname{gcd}%',
+  'erf': '\\operatorname{erf}%',
+  'erfc': '\\operatorname{erfc}%',
+  'randomReal': '\\operatorname{randomReal}%',
+  'randomInteger': '\\operatorname{randomInteger}%',
+  // Logic operators
+  'and': '%0 \\land %1',
+  'or': '%0 \\lor %1',
+  'xor': '%0 \\oplus %1',
+  'not': '%0 \\lnot %1',
+  // Other operators
+  'circle': '%0 \\circ %1',
+  'ast': '%0 \\ast %1',
+  'star': '%0 \\star %1',
+  'asymp': '%0 \\asymp %1',
+  '/': '\\frac{%0}{%1}',
+  'Re': '\\Re{%0}',
+  'Im': '\\Im{%0}',
+  'factorial': '%0!',
+  'factorial2': '%0!!' // From www.w3.org/TR/MathML3/appendixc.html
+  // The keys of OP_PRECEDENCE are "canonical names" 
+  // (the values of the CANONICAL_NAMES table above, e.g. "?=")
+  // Those are different from the latex names (e.g. \\questeq)
+  // and from the function names (e.g. "questeq")
+
+};
+var OP_PRECEDENCE = {
+  'degree': 880,
+  'nabla': 740,
+  'curl': 740,
+  // not in MathML
+  'partial': 740,
+  'differentialD': 740,
+  // not in MathML
+  'capitalDifferentialD': 740,
+  // not in MathML
+  '**': 720,
+  // not in MathML
+  'odot': 710,
+  // Logical not
+  'not': 680,
+  // Division
+  'div': 660,
+  // division sign
+  'solidus': 660,
+  '/': 660,
+  'setminus': 650,
+  // \setminus, \smallsetminus
+  '%': 640,
+  'otimes': 410,
+  // Set operators
+  'union': 350,
+  // \cup
+  'intersection': 350,
+  // \cap
+  // Multiplication, division and modulo
+  '*': 390,
+  'ast': 390,
+  '.': 390,
+  'oplus': 300,
+  // also logical XOR... @todo
+  'ominus': 300,
+  // Addition
+  '+': 275,
+  '-': 275,
+  '+-': 275,
+  // \pm
+  '-+': 275,
+  // \mp
+  // Most circled-ops are 265
+  'circle': 265,
+  'circledast': 265,
+  'circledcirc': 265,
+  'star': 265,
+  // Different from ast
+  // Range
+  '..': 263,
+  // Not in MathML
+  // Unit conversion
+  'to': 262,
+  // Not in MathLM
+  'in': 262,
+  // Not in MathML
+  '|': 261,
+  // Not in MathML    (bind is the |_ operator)
+  // Relational
+  'congruent': 265,
+  'equiv': 260,
+  // MathML: "identical to"
+  '=': 260,
+  '!=': 255,
+  '?=': 255,
+  'similar': 250,
+  // tilde operator in MathML
+  'approx': 247,
+  '<': 245,
+  '>': 243,
+  '>=': 242,
+  '≥': 242,
+  '<=': 241,
+  // Set operator
+  'complement': 240,
+  'subset': 240,
+  // \subset
+  'superset': 240,
+  // \supset
+  // @todo and equality and neg operators
+  'elementof': 240,
+  // \in
+  '!elementof': 240,
+  // \notin
+  //
+  'exists': 230,
+  '!exists': 230,
+  'forall': 230,
+  // Logical operators
+  'and': 200,
+  'xor': 195,
+  // MathML had 190
+  'or': 190,
+  // Note: 'not' is 680
+  // center, low, diag, vert ellipsis         150
+  // Composition/sequence
+  'suchThat': 110,
+  // \backepsilon
+  ':': 100,
+  // '..':               100,
+  // '...':               100,
+  // Conditional (?:)
+  // Assignment
+  'assign': 80,
+  ':=': 80,
+  // MathML had 260 (same with U+2254 COLON EQUALS)
+  'therefore': 70,
+  'because': 70,
+  // Arrows
+  // Note: MathML had 270 for the arrows, but this
+  // would not work for (a = b => b = a)
+  // See also https://en.wikipedia.org/wiki/Logical_connective#Order_of_precedence
+  // for a suggested precedence (note that in this page lower precedence
+  // has the opposite meaning as what we use)
+  'shortLogicalImplies': 52,
+  // ->
+  'shortImplies': 51,
+  // =>
+  'logicalImplies': 50,
+  // -->
+  'implies': 49,
+  // ==>
+  'shortLogicalImpliedBy': 48,
+  // <-
+  'shortImpliedBy': 47,
+  // <=
+  'logicalImpliedBy': 46,
+  // <--
+  'impliedBy': 45,
+  // <==
+  'shortLogicalEquivalent': 44,
+  // <->
+  'shortEquivalent': 43,
+  // <=>
+  'logicalEquivalent': 42,
+  // <-->
+  'equivalent': 41,
+  // <==>
+  ',': 40,
+  ';': 30
+};
+
+function getArg(ast, index) {
+  return Array.isArray(ast.arg) ? ast.arg[index] : undefined;
+}
+/**
+ * Given a canonical name, return its precedence
+ * @param {string} canonicalName, for example "and"
+ * @return {number}
+ */
+
+
+function getPrecedence(canonicalName) {
+  return canonicalName ? OP_PRECEDENCE[canonicalName] || -1 : -1;
+}
+
+function getAssociativity(canonicalName) {
+  if (/=|=>/.test(canonicalName)) {
+    return 'right';
+  }
+
+  return 'left';
+}
+/**
+ *
+ * @param {string} name function canonical name
+ * @return {string}
+ */
+
+
+function getLatexTemplateForFunction(name) {
+  var result = FUNCTION_TEMPLATE[name];
+
+  if (!result) {
+    result = name.length > 1 ? '\\operatorname{' + name + '}%^%_ %' : name + '%^%_ %';
+  }
+
+  return result;
+}
+/**
+ *
+ * @param {string} name symbol name, e.g. "alpha"
+ * @return {string}
+ */
+
+
+function getLatexForSymbol(name) {
+  var result = FUNCTION_TEMPLATE[name];
+
+  if (result) {
+    return result.replace('%1', '').replace('%0', '').replace('%', '');
+  }
+
+  if (name.length > 1) {
+    var info = _definitions.default.getInfo('\\' + name, 'math');
+
+    if (info && (!info.fontFamily || info.fontFamily === 'cmr' || info.fontFamily === 'ams')) {
+      result = '\\' + name;
+    }
+  }
+
+  if (!result) {
+    result = _definitions.default.unicodeStringToLatex('math', name);
+  }
+
+  return result;
+}
+
+function isFunction(canonicalName) {
+  if (canonicalName === 'f' || canonicalName === 'g') return true;
+  var t = FUNCTION_TEMPLATE[canonicalName];
+  if (!t) return false; // A plain "%" is a placeholder for an argument list, indicating a function
+
+  if (/%[^01_^]?/.test(t)) return true;
+  return false;
+}
+/**
+ *
+ * @param {string} latex, for example '\\times'
+ * @return {string} the canonical name for the input, for example '*'
+ */
+
+
+function getCanonicalName(latex) {
+  latex = (latex || '').trim();
+  var result = CANONICAL_NAMES[latex];
+
+  if (!result) {
+    if (/^\\[^{}]+$/.test(latex)) {
+      var info = _definitions.default.getInfo(latex, 'math', {});
+
+      if (info) {
+        result = info.value || latex.slice(1);
+      } else {
+        result = latex.slice(1);
+      }
+    } else {
+      result = latex;
+    }
+  }
+
+  return result;
+}
+/**
+ * Return the operator precedence of the atom
+ * or -1 if not an operator
+ * @param {object} atom
+ * @return {number}
+ */
+
+
+function opPrec(atom) {
+  if (!atom) return null;
+  var name = getCanonicalName(getString(atom));
+  var result = [getPrecedence(name), getAssociativity(name)];
+  if (result[0] <= 0) return null;
+  return result;
+}
+
+function isOperator(atom) {
+  return opPrec(atom) !== null;
+}
+
+var DELIM_FUNCTION = {
+  '\\lfloor\\rfloor': 'floor',
+  '\\lceil\\rceil': 'ceil',
+  '\\vert\\vert': 'abs',
+  '\\lvert\\rvert': 'abs',
+  '||': 'abs',
+  '\\Vert\\Vert': 'norm',
+  '\\lVert\\rVert': 'norm',
+  "\\ulcorner\\urcorner": 'ucorner',
+  '\\llcorner\\lrcorner': 'lcorner',
+  '\\langle\\rangle': 'angle',
+  '\\lgroup\\rgroup': 'group',
+  '\\lmoustache\\rmoustache': 'moustache',
+  '\\lbrace\\rbrace': 'brace'
+};
+var POSTFIX_FUNCTION = {
+  '!': 'factorial',
+  '\\dag': 'dagger',
+  '\\dagger': 'dagger',
+  '\\ddagger': 'dagger2',
+  '\\maltese': 'maltese',
+  '\\backprime': 'backprime',
+  '\\backdoubleprime': 'backprime2',
+  '\\prime': 'prime',
+  '\\doubleprime': 'prime2',
+  '\\$': '$',
+  '\\%': '%',
+  '\\_': '_',
+  '\\degree': 'degree'
+};
+var ASSOCIATIVE_FUNCTION = {
+  '+': 'add',
+  '-': 'add',
+  // Subtraction is add(), but it's
+  // handled specifically so that the
+  // argument is negated
+  '*': 'multiply',
+  '=': 'equal',
+  ',': 'list',
+  ';': 'list2',
+  'and': 'and',
+  'or': 'or',
+  'xor': 'xor',
+  'union': 'union',
+  // shortLogicalEquivalent and logicalEquivalent map to the same function
+  // they mean the same thing, but have a difference precedence.
+  'shortLogicalEquivalent': 'logicalEquivalent',
+  // logical equivalent, iff, biconditional logical connective
+  'logicalEquivalent': 'logicalEquivalent',
+  // same
+  // shortEquivalent and equivalent map to the same function
+  // they mean the same thing, but have a difference precedence.
+  'shortEquivalent': 'equivalent',
+  // metalogic equivalent
+  'equivalent': 'equivalent' // same
+
+};
+var SUPER_ASSOCIATIVE_FUNCTION = {
+  ',': 'list',
+  ';': 'list2'
+};
+
+function getString(atom) {
+  if (Array.isArray(atom)) {
+    var result = '';
+    var _iteratorNormalCompletion = true;
+    var _didIteratorError = false;
+    var _iteratorError = undefined;
+
+    try {
+      for (var _iterator = atom[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+        var subAtom = _step.value;
+        result += getString(subAtom);
+      }
+    } catch (err) {
+      _didIteratorError = true;
+      _iteratorError = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion && _iterator.return != null) {
+          _iterator.return();
+        }
+      } finally {
+        if (_didIteratorError) {
+          throw _iteratorError;
+        }
+      }
+    }
+
+    return result;
+  }
+
+  if (atom.latex && !/^\\math(op|bin|rel|open|punct|ord|inner)/.test(atom.latex)) {
+    return atom.latex.trim();
+  }
+
+  if (atom.type === 'leftright') {
+    return '';
+  }
+
+  if (typeof atom.body === 'string') {
+    return atom.body;
+  }
+
+  if (Array.isArray(atom.body)) {
+    var _result = '';
+    var _iteratorNormalCompletion2 = true;
+    var _didIteratorError2 = false;
+    var _iteratorError2 = undefined;
+
+    try {
+      for (var _iterator2 = atom.body[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+        var _subAtom = _step2.value;
+        _result += getString(_subAtom);
+      }
+    } catch (err) {
+      _didIteratorError2 = true;
+      _iteratorError2 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+          _iterator2.return();
+        }
+      } finally {
+        if (_didIteratorError2) {
+          throw _iteratorError2;
+        }
+      }
+    }
+
+    return _result;
+  }
+
+  return '';
+}
+/**
+ *
+ * @param {object} expr - Abstract Syntax Tree object
+ * @return {string} A string, the symbol, or undefined
+ */
+
+
+function asSymbol(node) {
+  return typeof node.sym === 'string' ? getLatexForSymbol(node.sym) || node.sym : '';
+}
+/**
+ *
+ * @param {object} node - Abstract Syntax Tree node
+ * @return {number} A JavaScript number, the value of the AST or NaN
+ * @private
+ */
+
+
+function asMachineNumber(node) {
+  return parseFloat(node.num);
+}
+
+function isNumber(node) {
+  return _typeof(node) === 'object' && typeof node.num !== 'undefined';
+}
+
+function numberRe(node) {
+  var result = 0;
+
+  if (isNumber(node)) {
+    if (_typeof(node.num) === 'object') {
+      result = typeof node.num.re !== 'undefined' ? parseFloatToPrecision(node.num.re) : 0;
+    } else {
+      result = parseFloat(node.num);
+    }
+  }
+
+  return result;
+}
+
+function numberIm(node) {
+  var result = 0;
+
+  if (isNumber(node)) {
+    if (_typeof(node.num) === 'object') {
+      result = typeof node.num.im !== 'undefined' ? parseFloatToPrecision(node.num.im) : 0;
+    }
+  }
+
+  return result;
+}
+
+function isComplexWithRealAndImaginary(node) {
+  return numberRe(node) !== 0 && numberIm(node) !== 0;
+}
+
+function hasSup(node) {
+  return node && typeof node.sup !== 'undefined';
+}
+
+function hasSub(node) {
+  return node && typeof node.sub !== 'undefined';
+}
+/**
+ * Return true if the current atom is of the specified type and value.
+ * @param {object} expr
+ * @param {string} type
+ * @param {string} value
+ */
+
+
+function isAtom(expr, type, value) {
+  var result = false;
+  var atom = expr.atoms[expr.index];
+
+  if (atom && atom.type === type) {
+    if (value === undefined) {
+      result = true;
+    } else {
+      result = getString(atom) === value;
+    }
+  }
+
+  return result;
+}
+/**
+ * 
+ * @param {string} functionName 
+ * @param {object} params 
+ */
+
+
+function wrapFn(functionName) {
+  var result = {
+    fn: functionName
+  };
+
+  for (var _len = arguments.length, params = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+    params[_key - 1] = arguments[_key];
+  }
+
+  if (params) {
+    var args = [];
+
+    for (var _i = 0, _params = params; _i < _params.length; _i++) {
+      var arg = _params[_i];
+      if (arg) args.push(arg);
+    }
+
+    if (args.length > 0) result.arg = args;
+  }
+
+  return result;
+}
+
+function wrapNum(num) {
+  if (typeof num === 'number') {
+    return {
+      num: num.toString()
+    };
+  } else if (typeof num === 'string') {
+    return {
+      num: num
+    };
+  } else if (_typeof(num) === 'object') {
+    // This is a complex number
+    console.assert(typeof num.re === 'string' || typeof num.im === 'string');
+    return {
+      num: num
+    };
+  }
+
+  return undefined;
+}
+/**
+ * Return the negative of the expression. Usually { fn:'negate', arg }
+ * but for numbers, the negated number
+ * @param {object} node
+ */
+
+
+function negate(node) {
+  if (isNumber(node)) {
+    var re = numberRe(node);
+    var im = numberIm(node);
+
+    if (im !== 0) {
+      if (re !== 0) {
+        node.num.re = (-re).toString();
+      }
+
+      node.num.im = (-im).toString();
+    } else {
+      node.num = (-re).toString();
+    }
+
+    return node;
+  }
+
+  return wrapFn('negate', node);
+}
+
+function nextIsSupsub(expr) {
+  var atom = expr.atoms[expr.index + 1];
+  return atom && atom.type === 'msubsup';
+}
+/**
+ * Parse for a possible sup/sub attached directly to the current atom
+ * or to a following 'msubsup' atom.
+ * After the call, the index points to the next atom to process.
+ * @param {object} expr
+ */
+
+
+function parseSupsub(expr, options) {
+  var atom = expr.atoms[expr.index]; // Is there a supsub directly on this atom?
+
+  if (atom && (typeof atom.superscript !== 'undefined' || typeof atom.subscript !== 'undefined')) {
+    // Move to the following atom
+    expr.index += 1;
+  } else {
+    atom = null;
+  } // If this atom didn't have a sup/sub,
+  // is the following atom a subsup atom?
+
+
+  if (!atom) {
+    atom = expr.atoms[expr.index + 1];
+
+    if (!atom || atom.type !== 'msubsup' || !(atom.superscript || atom.subscript)) {
+      atom = null;
+    } else {
+      // Yes. Skip the current atom and the supsub
+      expr.index += 2;
+    }
+  }
+
+  if (atom) {
+    if (typeof atom.subscript !== 'undefined') {
+      expr.ast.sub = parse(atom.subscript, options);
+    }
+
+    if (typeof atom.superscript !== 'undefined') {
+      if (atom.type === 'msubsup') {
+        if (/['\u2032]|\\prime/.test(getString(atom.superscript))) {
+          expr.index += 1;
+          atom = expr.atoms[expr.index + 1];
+
+          if (atom && atom.type === 'msubsup' && /['\u2032]|\\prime/.test(getString(atom.superscript))) {
+            expr.ast.sup = {
+              sym: "\u2033"
+            }; // DOUBLE-PRIME
+          } else {
+            expr.ast.sup = {
+              sym: "\u2032"
+            }; // PRIME
+
+            expr.index -= 1;
+          }
+        } else if (/['\u2033]|\\doubleprime/.test(getString(atom.superscript))) {
+          expr.ast.sup = {
+            sym: "\u2033"
+          }; // DOUBLE-PRIME
+        } else if (expr.ast) {
+          expr.ast.sup = parse(atom.superscript, options);
+        }
+      } else {
+        expr.ast.sup = parse(atom.superscript, options);
+      }
+    }
+  } else {
+    // Didn't find a supsup either on this atom and there was no 'msubsup'
+    // Time to move on to the next atom.
+    expr.index += 1;
+  }
+
+  return expr;
+}
+/**
+ * Parse postfix operators, such as "!" (factorial)
+ */
+
+
+function parsePostfix(expr, options) {
+  var lhs = expr.ast;
+
+  if (nextIsDigraph(expr, '!!')) {
+    expr.index += 1;
+    expr.ast = wrapFn('factorial2', lhs);
+    expr = parseSupsub(expr, options);
+    expr = parsePostfix(expr, options);
+    return expr;
+  }
+
+  if (nextIsDigraph(expr, '++')) {
+    expr.index += 1;
+    expr.ast = wrapFn('increment', lhs);
+    expr = parseSupsub(expr, options);
+    expr = parsePostfix(expr, options);
+    return expr;
+  }
+
+  if (nextIsDigraph(expr, '--')) {
+    expr.index += 1;
+    expr.ast = wrapFn('decrement', lhs);
+    expr = parseSupsub(expr, options);
+    expr = parsePostfix(expr, options);
+    return expr;
+  }
+
+  var atom = expr.atoms[expr.index];
+
+  if (atom && atom.latex && POSTFIX_FUNCTION[atom.latex.trim()]) {
+    expr.ast = wrapFn(POSTFIX_FUNCTION[atom.latex.trim()], lhs);
+    expr = parseSupsub(expr, options);
+    expr = parsePostfix(expr, options);
+  }
+
+  return expr;
+}
+/**
+ * Delimiters can be expressed:
+ * - as a matching pair of regular characters: '(a)'
+ * - a as 'leftright' expression: '\left(a\right)'
+ * - as a matching pair of 'sizeddelim': '\Bigl(a\Bigr)
+ *
+ * Note that the '\delim' command is only used for delimiters in the middle
+ * of a \left\right pair and not to represent pair-matched delimiters.
+ *
+ * This function handles all three cases
+ *
+ */
+
+
+function parseDelim(expr, ldelim, rdelim, options) {
+  expr.index = expr.index || 0;
+
+  if (expr.atoms.length === 0 || expr.index >= expr.atoms.length) {
+    expr.ast = undefined;
+    return expr;
+  }
+
+  var savedPrec = expr.minPrec;
+  expr.minPrec = 0;
+  var atom = expr.atoms[expr.index];
+
+  if (!ldelim) {
+    // If we didn't expect a specific delimiter, parse any delimiter
+    // and return it as a function application
+    var pairedDelim = true;
+
+    if (atom.type === 'mopen') {
+      ldelim = atom.latex.trim();
+      rdelim = _definitions.default.RIGHT_DELIM[ldelim];
+    } else if (atom.type === 'sizeddelim') {
+      ldelim = atom.delim;
+      rdelim = _definitions.default.RIGHT_DELIM[ldelim];
+    } else if (atom.type === 'leftright') {
+      pairedDelim = false;
+      ldelim = atom.leftDelim;
+      rdelim = atom.rightDelim; // If we have an unclosed smart fence, assume the right delim is
+      // matching the left delim
+
+      if (rdelim === '?') rdelim = _definitions.default.RIGHT_DELIM[ldelim];
+    } else if (atom.type === 'textord') {
+      ldelim = atom.latex.trim();
+      rdelim = _definitions.default.RIGHT_DELIM[ldelim];
+    }
+
+    if (ldelim && rdelim) {
+      if (ldelim === '|' && rdelim === '|') {
+        // Check if this could be a ||x|| instead of |x|
+        var _atom = expr.atoms[expr.index + 1];
+
+        if (_atom && _atom.type === 'textord' && _atom.latex === '|') {
+          // Yes, it's a ||x||
+          ldelim = '\\lVert';
+          rdelim = '\\rVert';
+        }
+      }
+
+      expr = parseDelim(expr, ldelim, rdelim);
+
+      if (expr) {
+        if (pairedDelim) expr.index += 1;
+        expr.ast = {
+          fn: DELIM_FUNCTION[ldelim + rdelim] || ldelim + rdelim,
+          arg: [expr.ast]
+        };
+        expr.minPrec = savedPrec;
+        return expr;
+      }
+    }
+
+    return undefined;
+  }
+
+  if (atom.type === 'mopen' && getString(atom) === ldelim) {
+    expr.index += 1; // Skip the open delim
+
+    expr = parseExpression(expr, options);
+    atom = expr.atoms[expr.index];
+
+    if (atom && atom.type === 'mclose' && getString(atom) === rdelim) {
+      if (nextIsSupsub(expr)) {
+        // Wrap in a group if we have an upcoming superscript or subscript
+        expr.ast = {
+          group: expr.ast
+        };
+      }
+
+      expr = parseSupsub(expr, options);
+      expr = parsePostfix(expr, options);
+    } // TODO: else, syntax error?
+
+  } else if (atom.type === 'textord' && getString(atom) === ldelim) {
+    expr.index += 1; // Skip the open delim
+
+    expr = parseExpression(expr, options);
+    atom = expr.atoms[expr.index];
+
+    if (atom && atom.type === 'textord' && getString(atom) === rdelim) {
+      expr.index += 1;
+      expr = parseSupsub(expr, options);
+      expr = parsePostfix(expr, options);
+    } // TODO: else, syntax error?
+
+  } else if (ldelim === '\\lVert' && atom.type === 'textord' && atom.latex === '|') {
+    atom = expr.atoms[expr.index + 1];
+
+    if (atom && atom.type === 'textord' && atom.latex === '|') {
+      // This is an opening ||
+      expr.index += 2; // Skip the open delim
+
+      expr = parseExpression(expr, options);
+      atom = expr.atoms[expr.index];
+      var atom2 = expr.atoms[expr.index + 1];
+
+      if (atom && atom.type === 'textord' && atom.latex === '|' && atom2 && atom2.type === 'textord' && atom2.latex === '|') {
+        // This was a closing ||
+        expr.index += 2;
+        expr = parseSupsub(expr, options);
+        expr = parsePostfix(expr, options);
+      }
+    }
+  } else if (atom.type === 'sizeddelim' && atom.delim === ldelim) {
+    expr.index += 1; // Skip the open delim
+
+    expr = parseExpression(expr, options);
+    atom = expr.atoms[expr.index];
+
+    if (atom && atom.type === 'sizeddelim' && atom.delim === rdelim) {
+      expr.index += 1;
+      expr = parseSupsub(expr, options);
+      expr = parsePostfix(expr, options);
+    } // TODO: else, syntax error?
+
+  } else if (atom.type === 'leftright' && atom.leftDelim === ldelim && (atom.rightDelim === '?' || atom.rightDelim === rdelim)) {
+    // This atom type includes the content of the parenthetical expression
+    // in its body
+    expr.ast = parse(atom.body, options);
+
+    if (nextIsSupsub(expr)) {
+      // Wrap in a group if we have an upcoming superscript or subscript
+      expr.ast = {
+        group: expr.ast
+      };
+    }
+
+    expr = parseSupsub(expr, options);
+    expr = parsePostfix(expr, options);
+  } else {
+    return undefined;
+  }
+
+  expr.minPrec = savedPrec;
+  return expr;
+}
+
+function nextIsDigraph(expr, digraph) {
+  expr.index = expr.index || 0;
+
+  if (expr.atoms.length <= 1 || expr.index >= expr.atoms.length - 1) {
+    return false;
+  }
+
+  return digraph === getString(expr.atoms[expr.index]) + getString(expr.atoms[expr.index + 1]);
+}
+/**
+ * Some symbols are made up of two consecutive characters.
+ * Handle them here. Return undefined if not a digraph.
+ * TODO: other digraphs:
+ * :=
+ * ++
+ * **
+ * =:
+ * °C U+2103
+ * °F U+2109
+ *
+*/
+
+
+function parseDigraph(expr) {
+  expr.index = expr.index || 0;
+
+  if (expr.atoms.length <= 1 || expr.index >= expr.atoms.length - 1) {
+    return undefined;
+  }
+
+  if (isAtom(expr, 'textord', '\\nabla')) {
+    expr.index += 1;
+
+    if (isAtom(expr, 'mbin', '\\times')) {
+      expr.index += 1;
+      expr.ast = 'curl'; // divergence
+
+      return expr;
+    } else if (isAtom(expr, 'mbin', '\\cdot')) {
+      expr.index += 1;
+      expr.ast = 'div';
+      return expr;
+    }
+
+    expr.index -= 1;
+  } else {
+    var digraph = expr.atoms[expr.index].latex + expr.atoms[expr.index + 1].latex;
+    var result = /^(>=|<=|>>|<<|:=|!=|\*\*|\+\+|--)$/.test(digraph) ? digraph : '';
+
+    if (result) {
+      expr.index += 1;
+    }
+
+    return result;
+  }
+
+  return undefined;
+}
+
+function parsePrimary(expr, options) {
+  // <primary> := ('-'|'+) <primary> | <number> | 
+  //              '(' <expression> ')' | <symbol> | <text> (<expression>)
+  expr.index = expr.index || 0;
+  expr.ast = undefined;
+
+  if (expr.atoms.length === 0 || expr.index >= expr.atoms.length) {
+    return expr;
+  }
+
+  var atom = expr.atoms[expr.index];
+  var val = getCanonicalName(getString(atom));
+  var digraph = parseDigraph(expr);
+
+  if (digraph) {
+    expr.ast = wrapFn(expr.ast, parsePrimary(expr, options).ast);
+  } else if (atom.type === 'root') {
+    expr.index = 0;
+    expr.atoms = atom.body;
+    return parsePrimary(expr, options);
+  } else if (atom.type === 'mbin' && val === '-') {
+    // Prefix - sign
+    expr.index += 1; // Skip the '-' symbol
+
+    expr = parsePrimary(expr, options);
+    expr.ast = negate(expr.ast);
+  } else if (atom.type === 'mbin' && val === '+') {
+    // Prefix + sign
+    expr.index += 1; // Skip the '+' symbol
+
+    expr = parsePrimary(expr, options);
+    expr.ast = wrapFn('add', expr.ast);
+  } else if (atom.type === 'mord' && /^[0-9.]$/.test(atom.latex)) {
+    // Looks like a number
+    var num = '';
+    var done = false;
+    var pat = /^[0-9.eEdD]$/;
+
+    while (expr.index < expr.atoms.length && !done && (isAtom(expr, 'spacing') || (isAtom(expr, 'mord') || isAtom(expr, 'mpunct', ',') || isAtom(expr, 'mbin')) && pat.test(expr.atoms[expr.index].latex))) {
+      if (expr.atoms[expr.index].type === 'spacing') {
+        expr.index += 1;
+      } else if (typeof expr.atoms[expr.index].superscript !== 'undefined' || typeof expr.atoms[expr.index].subscript !== 'undefined') {
+        done = true;
+      } else {
+        var digit = expr.atoms[expr.index].latex;
+
+        if (digit === 'd' || digit === 'D') {
+          digit = 'e';
+          pat = /^[0-9+-.]$/;
+        } else if (digit === 'e' || digit === 'E') {
+          if (nextIsSupsub(expr)) {
+            digit = '';
+            expr.index -= 1;
+            done = true;
+          } else {
+            digit = 'E';
+            pat = /^[0-9+-.]$/;
+          }
+        } else if (pat === /^[0-9+-.]$/) {
+          pat = /^[0-9]$/;
+        }
+
+        num += digit === ',' ? '' : digit;
+        expr.index += 1;
+      }
+    }
+
+    expr.ast = num ? wrapNum(num) : undefined; // This was a number. Is it followed by a fraction, e.g. 2 1/2
+
+    atom = expr.atoms[expr.index];
+
+    if (atom && atom.type === 'genfrac' && !isNaN(expr.ast.num)) {
+      // Add an invisible plus, i.e. 2 1/2 = 2 + 1/2
+      var lhs = expr.ast;
+      expr = parsePrimary(expr, options);
+      expr.ast = wrapFn('add', lhs, expr.ast);
+    }
+
+    if (atom && atom.type === 'group' && atom.latex && atom.latex.startsWith('\\nicefrac')) {
+      // \nicefrac macro, add an invisible plus
+      var _lhs = expr.ast;
+      expr = parsePrimary(expr, options);
+      expr.ast = wrapFn('add', _lhs, expr.ast);
+    }
+
+    if (atom && atom.type === 'msubsup') {
+      expr = parseSupsub(expr, options);
+    }
+
+    expr = parsePostfix(expr, options);
+  } else if (atom.type === 'genfrac' || atom.type === 'surd') {
+    // A fraction or a square/cube root
+    expr.ast = atom.toAST(options);
+    expr = parseSupsub(expr, options);
+    expr = parsePostfix(expr, options);
+  } else if (atom.type === 'mord' || atom.type === 'mbin') {
+    // A 'mord' but not a number: either an identifier ('x') or 
+    // a function ('\\Zeta')
+    if (isFunction(val) && !isOperator(atom)) {
+      // A function
+      expr.ast = {
+        fn: val
+      };
+      expr = parseSupsub(expr, options);
+      var fn = expr.ast;
+      var arg = parsePrimary(expr, options).ast;
+
+      if (arg && /^(list0|list|list2)$/.test(arg.fn)) {
+        fn.arg = fn.arg ? fn.arg.arg : undefined;
+      } else if (arg) {
+        fn.arg = [arg];
+      }
+
+      expr.ast = fn;
+    } else {
+      // An identifier
+      expr.ast = atom.toAST(options);
+
+      if (expr.ast.sym === 'ⅈ') {
+        // It's 'i', the imaginary unit
+        expr.ast = wrapNum({
+          im: "1"
+        });
+      }
+
+      expr = parseSupsub(expr);
+    }
+
+    expr = parsePostfix(expr, options);
+  } else if (atom.type === 'textord') {
+    // Note that 'textord' can also be operators, and are handled as such
+    // in parseExpression()
+    if (!isOperator(atom)) {
+      // This doesn't look like a textord operator
+      if (!_definitions.default.RIGHT_DELIM[atom.latex ? atom.latex.trim() : atom.body]) {
+        // Not an operator, not a fence, it's a symbol or a function
+        if (isFunction(val)) {
+          // It's a function
+          expr.ast = {
+            fn: val
+          };
+          expr = parseSupsub(expr, options);
+          var _fn = expr.ast;
+          expr.index += 1; // Skip the function name
+
+          _fn.arg = [parsePrimary(expr, options).ast];
+          expr.ast = _fn;
+          expr = parsePostfix(expr, options);
+        } else {
+          // It was a symbol...
+          expr.ast = atom.toAST(options);
+
+          if (typeof atom.superscript === 'undefined') {
+            expr.index += 1;
+          }
+
+          expr = parseSupsub(expr, options);
+          expr = parsePostfix(expr, options);
+        }
+      }
+    }
+  } else if (atom.type === 'mop') {
+    // Could be a function or an operator.
+    if ((/^\\(mathop|operatorname|operatorname\*)/.test(atom.latex) || isFunction(val)) && !isOperator(atom)) {
+      expr.ast = {
+        fn: /^\\(mathop|operatorname|operatorname\*)/.test(atom.latex) ? atom.body : val
+      };
+      expr = parseSupsub(expr, options);
+
+      if (hasSup(expr.ast)) {
+        // There was an exponent with the function.
+        // This may be an inverse function
+        var INVERSE_FUNCTION = {
+          'sin': 'arcsin',
+          'cos': 'arccos',
+          'tan': 'arctan',
+          'cot': 'arccot',
+          'sec': 'arcsec',
+          'csc': 'arccsc',
+          'sinh': 'arsinh',
+          'cosh': 'arcosh',
+          'tanh': 'artanh',
+          'csch': 'arcsch',
+          'sech': 'arsech',
+          'coth': 'arcoth'
+        };
+
+        if (asMachineNumber(expr.ast.sup) === -1 && INVERSE_FUNCTION[val]) {
+          expr.ast = wrapFn(INVERSE_FUNCTION[val], parsePrimary(expr, options).ast);
+        } else {
+          // Keep the exponent, add the argument
+          var _fn2 = expr.ast;
+          _fn2.arg = [parsePrimary(expr, options).ast];
+          expr.ast = _fn2;
+        }
+      } else {
+        var _fn3 = expr.ast;
+        var _arg = parsePrimary(expr, options).ast;
+
+        if (_arg && /^(list0|list|list2)$/.test(_arg.fn)) {
+          _fn3.arg = _arg.arg;
+        } else if (_arg) {
+          _fn3.arg = [_arg];
+        }
+
+        expr.ast = _fn3;
+      }
+    }
+  } else if (atom.type === 'array') {
+    expr.index += 1;
+    expr.ast = atom.toAST(options);
+  } else if (atom.type === 'group') {
+    expr.index += 1;
+    expr.ast = atom.toAST(options);
+  } else if (atom.type === 'mclose') {
+    return expr;
+  } else if (atom.type === 'error') {
+    expr.index += 1;
+    expr.ast = {
+      error: atom.latex
+    };
+    return expr;
+  }
+
+  if (expr.ast === undefined) {
+    // Parse either a group of paren, and return their content as the result
+    // or a pair of delimiters, and return them as a function applied
+    // to their content, i.e. "|x|" -> {fn: "||", arg: "x"}
+    var delim = parseDelim(expr, '(', ')', options) || parseDelim(expr, null, null, options);
+
+    if (delim) {
+      expr = delim;
+    } else if (!isOperator(atom)) {
+      // This is not an operator (if it is, it may be an operator
+      // dealing with an empty lhs. It's possible.
+      // Couldn't interpret the expression. Output an error.
+      if (atom.type === 'placeholder') {
+        // Default value for a placeholder is 0
+        // (except for the denominator of a 'genfrac')
+        expr.ast = wrapNum(0);
+      } else {
+        expr.ast = {
+          text: '?'
+        };
+        expr.ast.error = 'Unexpected token ' + "'" + atom.type + "'";
+
+        if (atom.latex) {
+          expr.ast.latex = atom.latex;
+        } else if (atom.body && atom.toLatex) {
+          expr.ast.latex = atom.toLatex();
+        }
+      }
+
+      expr.index += 1; // Skip the unexpected token, and attempt to continue
+    }
+  }
+
+  atom = expr.atoms[expr.index];
+
+  if (atom && (atom.type === 'mord' || atom.type === 'surd' || atom.type === 'mop' || atom.type === 'mopen' || atom.type === 'sizeddelim' || atom.type === 'leftright')) {
+    if (atom.type === 'sizeddelim') {
+      for (var d in _definitions.default.RIGHT_DELIM) {
+        if (atom.delim === _definitions.default.RIGHT_DELIM[d]) {
+          // This is (most likely) a closing delim, exit.
+          // There are ambiguous cases, for example |x|y|z|.
+          expr.index += 1;
+          return expr;
+        }
+      }
+    }
+
+    if ((atom.type === 'mord' || atom.type === 'textord' || atom.type === 'mop') && isOperator(atom)) {
+      // It's actually an operator
+      return expr;
+    }
+
+    var _lhs2 = expr.ast;
+    expr.ast = {};
+    expr = parsePrimary(expr, options);
+
+    if (expr && expr.ast && _lhs2) {
+      if (isFunction(_lhs2.fn) && typeof _lhs2.arg === 'undefined' || Array.isArray(_lhs2.arg) && _lhs2.arg.length === 0) {
+        // A function with no arguments followed by a list -> 
+        // the list becomes the argument to the function
+        if (expr.ast.fn === 'list2' || expr.ast.fn === 'list') {
+          expr.ast = wrapFn(_lhs2.fn, expr.ast.arg);
+        } else {
+          // A function "f(x)" or "√x" followed by something else:
+          // implicit multiply
+          expr.ast = wrapFn('multiply', _lhs2, expr.ast);
+        }
+      } else {
+        // Invisible times, e.g. '2x'
+        if (expr.ast.fn === 'multiply') {
+          expr.ast.arg.unshift(_lhs2);
+        } else if (numberIm(_lhs2) === 0 && numberRe(_lhs2) !== 0 && numberIm(expr.ast) === 1 && numberRe(expr.ast) === 0) {
+          // Imaginary number, i.e. "3i"
+          expr.ast = wrapNum({
+            im: numberRe(_lhs2).toString()
+          });
+        } else {
+          expr.ast = wrapFn('multiply', _lhs2, expr.ast);
+        }
+      }
+    } else {
+      expr.ast = _lhs2;
+    }
+  }
+
+  return expr;
+}
+/**
+ * Given an atom or an array of atoms, return their AST representation as
+ * an object.
+ * @param {object} expr An expressions, including expr.atoms, expr.index,
+ * expr.minPrec the minimum precedence that this parser should parse
+ * before returning; expr.lhs (optional); expr.ast, the resulting AST.
+ * @return {object} the expr object, updated
+ * @private
+ */
+
+
+function parseExpression(expr, options) {
+  expr.index = expr.index || 0;
+  expr.ast = undefined;
+  if (expr.atoms.length === 0 || expr.index >= expr.atoms.length) return expr;
+  expr.minPrec = expr.minPrec || 0;
+  var lhs = parsePrimary(expr, options).ast;
+  var done = false;
+  var minPrec = expr.minPrec;
+
+  while (!done) {
+    var atom = expr.atoms[expr.index];
+    var digraph = parseDigraph(expr);
+    done = !atom || atom.mode === 'text' || !digraph && !isOperator(atom);
+    var prec = void 0,
+        assoc = void 0;
+
+    if (!done) {
+      var _ref = digraph ? [getPrecedence(digraph), getAssociativity(digraph)] : opPrec(atom);
+
+      var _ref2 = _slicedToArray(_ref, 2);
+
+      prec = _ref2[0];
+      assoc = _ref2[1];
+      done = prec < minPrec;
+    }
+
+    if (!done) {
+      var opName = digraph || getCanonicalName(getString(atom));
+
+      if (assoc === 'left') {
+        expr.minPrec = prec + 1;
+      } else {
+        expr.minPrec = prec;
+      }
+
+      expr.index += 1;
+
+      if (opName === '|') {
+        if (typeof atom.subscript !== 'undefined' || expr.atoms[expr.index] && typeof expr.atoms[expr.index].subscript !== 'undefined' && expr.atoms[expr.index].type === 'msubsup') {
+          // Bind is a special function. It doesn't have a rhs, and 
+          // its argument is a subscript.
+          expr.ast = {};
+          var sub_arg = parseSupsub(expr, options).ast.sub;
+          lhs = wrapFn('bind', lhs);
+
+          if (sub_arg && sub_arg.fn === 'equal' && lhs.arg) {
+            // This is a subscript of the form "x=..."
+            lhs.arg.push(getArg(sub_arg, 0));
+            lhs.arg.push(getArg(sub_arg, 1));
+          } else if (sub_arg && lhs.arg && (sub_arg.fn === 'list' || sub_arg.fn === 'list2')) {
+            // Form: "x=0;n=3;z=5"
+            var currentSym = {
+              sym: "x"
+            };
+
+            for (var i = 0; i < sub_arg.arg.length; i++) {
+              if (sub_arg.arg[i].fn === 'equal') {
+                currentSym = getArg(sub_arg.arg[i], 0);
+                lhs.arg.push(currentSym);
+                lhs.arg.push(getArg(sub_arg.arg[i], 1));
+              } else {
+                lhs.arg.push(currentSym);
+                lhs.arg.push(sub_arg.arg[i]);
+              }
+            }
+          } else if (sub_arg) {
+            // Default identifier if none provided
+            lhs.arg.push({
+              sym: "x"
+            });
+            lhs.arg.push(sub_arg);
+          }
+        } else {
+          // That was a "|", but not with a subscript after, so 
+          // it's the end of the expression, might be a right fence.
+          done = true;
+        }
+      } else {
+        var rhs = parseExpression(expr, options).ast; // Some operators (',' and ';' for example) convert into a function
+        // even if there's only two arguments. They're super associative...
+
+        var fn = SUPER_ASSOCIATIVE_FUNCTION[opName];
+
+        if (fn && lhs && lhs.fn !== fn) {
+          // Only promote them if the lhs is not already the same function.
+          // If it is, we'll combine it below.
+          lhs = wrapFn(fn, lhs);
+        } // Promote subtraction to an addition
+
+
+        if (opName === '-') {
+          if (lhs && lhs.arg && lhs.fn === 'add') {
+            // add(x,y) - z -> add(x, y, -z)
+            if (rhs !== undefined) lhs.arg.push(negate(rhs));
+          } else if (lhs && lhs.fn === 'subtract') {
+            // x-y - z      -> add(x, -y, -z)
+            lhs = wrapFn('add', getArg(lhs, 0), negate(getArg(lhs, 1)), negate(rhs));
+          } else if (isNumber(lhs) && !hasSup(lhs) && isNumber(rhs) && !hasSup(rhs) && (typeof rhs.num.re === 'undefined' || rhs.num.re === '0') && typeof rhs.num.im !== 'undefined') {
+            lhs = {
+              num: {
+                re: lhs.num,
+                im: (-parseFloat(rhs.num.im)).toString()
+              }
+            };
+          } else {
+            lhs = wrapFn('subtract', lhs, rhs);
+          }
+        } else {
+          // Is there a function (e.g. 'add') implementing the
+          // associative version of this operator (e.g. '+')?
+          fn = ASSOCIATIVE_FUNCTION[opName];
+
+          if (fn === 'add' && lhs && lhs.fn === 'subtract') {
+            // subtract(x, y) + z -> add(x, -y, z)
+            lhs = wrapFn('add', getArg(lhs, 0), negate(getArg(lhs, 1)), rhs);
+          } else if (fn && lhs && lhs.fn === fn && !hasSup(lhs)) {
+            // add(x,y) + z -> add(x, y, z)
+            if (typeof rhs !== 'undefined') {
+              if (rhs.fn === fn && !hasSup(rhs) && rhs.arg) {
+                // add(x, y) = add (a, b)
+                lhs.arg = [].concat(_toConsumableArray(lhs.arg), _toConsumableArray(rhs.arg));
+              } else if (lhs.arg) {
+                lhs.arg.push(rhs);
+              }
+            }
+          } else if (fn && rhs && rhs.arg && rhs.fn === fn) {
+            // x =    y = z -> equal(x, y, z)
+            rhs.arg.unshift(lhs);
+            lhs = rhs;
+          } else if (fn === 'multiply' && isNumber(lhs) && !hasSup(lhs) && rhs && asMachineNumber(rhs) === 10 && isNumber(rhs.sup)) {
+            // n * 10^m
+            lhs = wrapNum(asMachineNumber(lhs) * Math.pow(10, asMachineNumber(rhs.sup)));
+          } else if (fn === 'add' && isNumber(lhs) && !hasSup(lhs) && rhs && numberIm(rhs) !== 0 && !hasSup(rhs)) {
+            lhs = {
+              num: {
+                re: lhs.num,
+                im: rhs.num.im
+              }
+            };
+          } else {
+            lhs = wrapFn(fn || OP_NAME[opName] || opName, lhs, rhs);
+          }
+        }
+      }
+    }
+  }
+
+  expr.ast = lhs;
+  return expr;
+}
+/**
+ * Return a string escaped as necessary to comply with the JSON format
+ * @param {string} s
+ * @return {string}
+ */
+
+
+function escapeText(s) {
+  return s.replace(/[\\]/g, '\\\\').replace(/["]/g, '\\"').replace(/[\b]/g, "\\b").replace(/[\f]/g, "\\f").replace(/[\n]/g, "\\n").replace(/[\r]/g, "\\r").replace(/[\t]/g, "\\t");
+}
+/**
+ * Return an AST representation of a single atom
+ *
+ * @return {object}
+ * @method MathAtom#toAST
+ */
+
+
+_mathAtom.default.MathAtom.prototype.toAST = function (options) {
+  var MATH_VARIANTS = {
+    'bb': 'double-struck',
+    'cal': 'script',
+    'scr': 'script',
+    'frak': 'fraktur',
+    'cmrss': 'sans-serif',
+    'cmrtt': 'monospace'
+  }; // TODO: See https://www.w3.org/TR/MathML2/chapter6.html#chars.letter-like-tables
+
+  var result = {};
+  var sym = '';
+  var m;
+  var lhs, rhs;
+  var variant = MATH_VARIANTS[this.baseFontFamily || this.fontFamily];
+  var variantSym;
+  var style = '';
+  if (this.fontSeries === 'b') style += 'bold';
+  if (this.fontShape === 'it') style += 'italic';
+  var command = this.latex ? this.latex.trim() : null;
+
+  switch (this.type) {
+    case 'root':
+    case 'group':
+      // Macros appear as group as well. Handle some of them.
+      if (this.latex && this.latex.startsWith('\\nicefrac')) {
+        m = this.latex.slice(9).match(/({.*}|[^}])({.*}|[^}])/);
+
+        if (m) {
+          if (m[1].length === 1) {
+            lhs = m[1];
+          } else {
+            lhs = m[1].substr(1, m[1].length - 2);
+          }
+
+          lhs = _parser.default.parseTokens(_lexer.default.tokenize(lhs), 'math', null, options.macros);
+
+          if (m[2].length === 1) {
+            rhs = m[2];
+          } else {
+            rhs = m[2].substr(1, m[2].length - 2);
+          }
+
+          rhs = _parser.default.parseTokens(_lexer.default.tokenize(rhs), 'math', null, options.macros);
+          result = wrapFn('divide', parse(lhs, options), parse(rhs, options));
+        } else {
+          result.fn = 'divide';
+        }
+      } else {
+        result.group = parse(this.body, options);
+      }
+
+      break;
+
+    case 'genfrac':
+      // If there's no denominator, or a placeholder, use "1" as the value
+      result = wrapFn('divide', parse(this.numer, options), this.denom && this.denom[0] && this.denom[0].type === 'placeholder' ? wrapNum(1) : parse(this.denom, options));
+      break;
+
+    case 'surd':
+      if (this.index) {
+        result = wrapFn('pow', parse(this.body, options), wrapFn('divide', 1, parse(this.index, options)));
+      } else {
+        result = wrapFn('sqrt', parse(this.body, options));
+      }
+
+      break;
+
+    case 'rule':
+      break;
+
+    case 'line':
+    case 'overlap':
+    case 'accent':
+      break;
+
+    case 'overunder':
+      break;
+
+    case 'mord':
+    case 'textord':
+    case 'mbin':
+      // Check to see if it's a \char command
+      m = !command ? undefined : command.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/);
+
+      if (m) {
+        sym = String.fromCodePoint(parseInt(m[1], 16));
+      } else {
+        sym = getCanonicalName(getString(this));
+
+        if (sym.length > 0 && sym.charAt(0) === '\\') {
+          // This is an identifier with no special handling.
+          // Use the Unicode value if outside ASCII range
+          if (typeof this.body === 'string') {
+            // TODO: consider making this an option?
+            // if (this.body.charCodeAt(0) > 255) {
+            //     sym = '&#x' + ('000000' +
+            //         this.body.charCodeAt(0).toString(16)).substr(-4) + ';';
+            // } else {
+            sym = this.body; // }
+          }
+        }
+      }
+
+      variantSym = escapeText(_definitions.default.mathVariantToUnicode(sym, variant, style));
+
+      if (variantSym !== sym) {
+        // If there's a specific Unicode character matching this one
+        // no need to record a variant.
+        result = {
+          sym: variantSym
+        };
+        variant = 'normal';
+      } else {
+        result = {
+          sym: sym
+        };
+      }
+
+      break;
+    // case 'mpunct':
+    //     result = '<mo separator="true">' + command + '</mo>';
+    //     break;
+
+    case 'minner':
+      break;
+
+    case 'mop':
+      break;
+
+    case 'box':
+      result = parse(this.body, options);
+      break;
+
+    case 'enclose':
+      // result = '<menclose notation="';
+      // for (const notation in this.notation) {
+      //     if (this.notation.hasOwnProperty(notation) &&
+      //         this.notation[notation]) {
+      //         result += sep + notation;
+      //         sep = ' ';
+      //     }
+      // }
+      // result += '">' + toAST(this.body).mathML + '</menclose>';
+      break;
+
+    case 'array':
+      if (this.env.name === 'cardinality') {
+        result = wrapFn('card', parse(this.array, options));
+      } else if (/array|matrix|pmatrix|bmatrix/.test(this.env.name)) {
+        result = {
+          fn: 'array',
+          args: []
+        };
+        var _iteratorNormalCompletion3 = true;
+        var _didIteratorError3 = false;
+        var _iteratorError3 = undefined;
+
+        try {
+          for (var _iterator3 = this.array[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+            var row = _step3.value;
+            result.args.push(row.map(function (cell) {
+              return parse(cell, options);
+            }));
+          }
+        } catch (err) {
+          _didIteratorError3 = true;
+          _iteratorError3 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+              _iterator3.return();
+            }
+          } finally {
+            if (_didIteratorError3) {
+              throw _iteratorError3;
+            }
+          }
+        }
+      } else if (this.env.name === 'cases') {
+        result = {
+          fn: 'cases',
+          args: []
+        };
+        var _iteratorNormalCompletion4 = true;
+        var _didIteratorError4 = false;
+        var _iteratorError4 = undefined;
+
+        try {
+          for (var _iterator4 = this.array[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
+            var _row = _step4.value;
+
+            if (_row[0]) {
+              var statement = [];
+              statement.push(parse(_row[0], options));
+              var condition = parse(_row[1], options);
+
+              if (condition) {
+                if (condition.fn === 'text' && condition.arg) {
+                  if (/^(if|when|for)$/i.test(condition.arg[0].trim())) {
+                    condition = condition.arg.filter(function (x) {
+                      return typeof x !== 'string';
+                    });
+                  }
+                }
+              }
+
+              statement.push(condition || {});
+              result.args.push(statement);
+            }
+          }
+        } catch (err) {
+          _didIteratorError4 = true;
+          _iteratorError4 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
+              _iterator4.return();
+            }
+          } finally {
+            if (_didIteratorError4) {
+              throw _iteratorError4;
+            }
+          }
+        }
+      }
+
+      break;
+
+    case 'spacing':
+    case 'space':
+    case 'mathstyle':
+      break;
+
+    default:
+      result = undefined;
+      console.warn('Unhandled atom "' + this.type + '" in "' + (this.latex || this.body) + '"');
+  }
+
+  if (result && variant && variant !== 'normal') {
+    result.variant = variant;
+  }
+
+  if (result && typeof this.cssClass === 'string') {
+    result.class = this.cssClass;
+  }
+
+  if (result && typeof this.cssId === 'string') {
+    result.id = this.cssId;
+  }
+
+  return result;
+};
+
+function filterPresentationAtoms(atoms) {
+  if (!atoms) return [];
+  var result;
+
+  if (Array.isArray(atoms)) {
+    result = [];
+    var _iteratorNormalCompletion5 = true;
+    var _didIteratorError5 = false;
+    var _iteratorError5 = undefined;
+
+    try {
+      for (var _iterator5 = atoms[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
+        var atom = _step5.value;
+        var filter = filterPresentationAtoms(atom);
+        result = result.concat(filter);
+      }
+    } catch (err) {
+      _didIteratorError5 = true;
+      _iteratorError5 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
+          _iterator5.return();
+        }
+      } finally {
+        if (_didIteratorError5) {
+          throw _iteratorError5;
+        }
+      }
+    }
+  } else {
+    if (atoms.type === 'spacing') {
+      return [];
+    } else if (atoms.type === 'first' || atoms.type === 'box') {
+      result = filterPresentationAtoms(atoms.body);
+    } else {
+      if (atoms.body && Array.isArray(atoms.body)) {
+        atoms.body = filterPresentationAtoms(atoms.body);
+      }
+
+      if (atoms.superscript && Array.isArray(atoms.superscript)) {
+        atoms.superscript = filterPresentationAtoms(atoms.superscript);
+      }
+
+      if (atoms.subscript && Array.isArray(atoms.subscript)) {
+        atoms.subscript = filterPresentationAtoms(atoms.subscript);
+      }
+
+      if (atoms.index && Array.isArray(atoms.index)) {
+        atoms.index = filterPresentationAtoms(atoms.index);
+      }
+
+      if (atoms.denom && Array.isArray(atoms.denom)) {
+        atoms.denom = filterPresentationAtoms(atoms.denom);
+      }
+
+      if (atoms.numer && Array.isArray(atoms.numer)) {
+        atoms.numer = filterPresentationAtoms(atoms.numer);
+      }
+
+      if (atoms.array && Array.isArray(atoms.array)) {
+        atoms.array = atoms.array.map(function (row) {
+          return row.map(function (cell) {
+            return filterPresentationAtoms(cell);
+          });
+        });
+      }
+
+      result = [atoms];
+    }
+  }
+
+  return result;
+}
+/**
+ * Parse a sequence of text zone and math zones:
+ * <sentence> := ((<text>) <expression>)+
+ * @param {object} expr 
+ * @return  {object}
+ */
+
+
+function parseSentence(expr, options) {
+  expr.index = expr.index || 0;
+  expr.ast = undefined;
+  var zones = []; // Iterate while we have atoms to look at
+
+  while (expr.atoms[expr.index]) {
+    if (expr.atoms[expr.index].mode === 'text') {
+      // Text mode atom...
+      var text = '';
+
+      while (expr.atoms[expr.index] && expr.atoms[expr.index].mode === 'text') {
+        text += expr.atoms[expr.index].body;
+        expr.index += 1;
+      }
+
+      zones.push(text);
+    } else {
+      var z = parseExpression(expr, options).ast; // Something went wrong in parsing the expression...
+
+      if (!z) return undefined;
+      zones.push(z);
+    }
+  }
+
+  if (zones.length > 1) {
+    return wrapFn.apply(void 0, ['text'].concat(zones));
+  }
+
+  return zones[0] || undefined;
+}
+/**
+ * @param {Atoms[]} atoms 
+ * @return  {object}
+ */
+
+
+function parse(atoms, options) {
+  return parseSentence({
+    atoms: filterPresentationAtoms(atoms)
+  }, options);
+}
+
+_mathAtom.default.toAST = function (atoms, options) {
+  return parse(atoms, options);
+};
+/**
+ *
+ * @param {string} fence - The fence to wrap around the arguments
+ * @return {string} - A string wrapped in the fence
+ */
+
+
+function wrapFence(fence) {
+  var args = Array.prototype.slice.call(arguments);
+  args.shift();
+  fence = fence || '.. ';
+  var result = '';
+
+  if (args.length > 0) {
+    if (fence[0] !== '.') result += fence[0];
+    var sep = '';
+    var _iteratorNormalCompletion6 = true;
+    var _didIteratorError6 = false;
+    var _iteratorError6 = undefined;
+
+    try {
+      for (var _iterator6 = args[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
+        var arg = _step6.value;
+        result += sep + arg;
+        sep = fence[2];
+      }
+    } catch (err) {
+      _didIteratorError6 = true;
+      _iteratorError6 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
+          _iterator6.return();
+        }
+      } finally {
+        if (_didIteratorError6) {
+          throw _iteratorError6;
+        }
+      }
+    }
+
+    if (fence[1] !== '.') result += fence[1];
+  }
+
+  return result;
+}
+/**
+ * Return a formatted mantissa:
+ * 1234567 -> 123 456 7...
+ * 1233333 -> 12(3)
+ * @param {string} m
+ * @param {Object.<string, any>} config
+ */
+
+
+function formatMantissa(m, config) {
+  var originalLength = m.length; // The last digit may have been rounded, if it exceeds the precison,
+  // which could throw off the
+  // repeating pattern detection. Ignore   it.
+
+  m = m.substr(0, config.precision - 2);
+
+  for (var i = 0; i < m.length - 16; i++) {
+    // Offset is the part of the mantissa that is not repeating
+    var offset = m.substr(0, i); // Try to find a repeating pattern of length j
+
+    for (var j = 0; j < 17; j++) {
+      var cycle = m.substr(i, j + 1);
+      var times = Math.floor((m.length - offset.length) / cycle.length);
+
+      if (times > 1) {
+        if ((offset + cycle.repeat(times + 1)).startsWith(m)) {
+          // We've found a repeating pattern!
+          if (cycle === '0') {
+            return offset.replace(/(\d{3})/g, '$1' + config.groupSeparator);
+          }
+
+          return offset.replace(/(\d{3})/g, '$1' + config.groupSeparator) + config.beginRepeatingDigits + cycle.replace(/(\d{3})/g, '$1' + config.groupSeparator) + config.endRepeatingDigits;
+        }
+      }
+    }
+  }
+
+  if (originalLength !== m.length) {
+    m += '\\ldots';
+  }
+
+  return m.replace(/(\d{3})/g, '$1' + config.groupSeparator);
+}
+
+function parseFloatToPrecision(num) {
+  return parseFloat(parseFloat(num).toPrecision(15));
+}
+/**
+*
+* @param {string|number} num - A number, represented as a string (e.g. "-12.45"
+*  particularly useful for arbitrary precision numbers) or a number (-12.45)
+* @return {string} A LaTeX representation of the AST
+*/
+
+
+function numberAsLatex(num, config) {
+  var result = '';
+
+  if (typeof config.precision === 'number') {
+    if (typeof num === 'number') {
+      num = parseFloatToPrecision(num);
+    } else {
+      var sign = '';
+      var exponent = '';
+
+      if (num[0] === '-') {
+        sign = '-';
+        num = num.substr(1);
+      } else if (num[0] === '+') {
+        num = num.substr(1);
+      }
+
+      if (num.indexOf('.') >= 0) {
+        var m = num.match(/(\d*).(\d*)([e|E]([-+]?[0-9]*))?/);
+        var base = m[1];
+        var mantissa = m[2].substring(0, Math.min(config.precision - base.length, m[2].length));
+        exponent = m[4] || '';
+
+        if (base === '0') {
+          var p = 0; // Index of the first non-zero digit after the decimal
+
+          while (mantissa[p] === '0' && p < mantissa.length) {
+            p += 1;
+          }
+
+          var r = '';
+
+          if (p <= 4) {
+            r = '0' + config.decimalMarker;
+            r += mantissa.substr(0, p);
+            r += formatMantissa(num.substr(r.length), config);
+          } else if (p + 1 >= config.precision) {
+            r = '0';
+            sign = '';
+          } else {
+            r = num[p];
+            var f = formatMantissa(num.substr(p + 1), config);
+
+            if (f) {
+              r += config.decimalMarker + f;
+            }
+          }
+
+          if (r !== '0') {
+            if (num.length - 1 > config.precision && !r.endsWith('}') && !r.endsWith('\\ldots')) {
+              r += '\\ldots';
+            }
+
+            if (p > 4) {
+              r += config.exponentProduct;
+
+              if (config.exponentMarker) {
+                r += config.exponentMarker + (1 - p).toString();
+              } else {
+                r += '10^{' + (1 - p).toString() + '}';
+              }
+            }
+          }
+
+          num = r;
+        } else {
+          num = base.replace(/\B(?=(\d{3})+(?!\d))/g, config.groupSeparator);
+
+          var _f = formatMantissa(mantissa, config);
+
+          if (_f) {
+            num += config.decimalMarker + _f; // if (num.length - 1 > config.precision && !num.endsWith('}') && !num.endsWith('\\ldots')) {
+            //     num += '\\ldots';
+            // }
+          }
+        }
+      } else if (num.length > config.precision) {
+        var len = num.length;
+        var _r = num[0];
+
+        var _f2 = formatMantissa(num.substr(2), config);
+
+        if (_f2) {
+          _r += config.decimalMarker + _f2;
+
+          if (_r[_r.length - 1] !== '}') {
+            _r += '\\ldots';
+          }
+        }
+
+        if (_r !== '1') {
+          _r += config.exponentProduct;
+        } else {
+          _r = '';
+        }
+
+        if (config.exponentMarker) {
+          _r += config.exponentMarker + (len - 2).toString();
+        } else {
+          _r += '10^{' + (len - 2).toString() + '}';
+        }
+
+        num = _r;
+      } else {
+        num = num.replace(/\B(?=(\d{3})+(?!\d))/g, config.groupSeparator);
+      }
+
+      if (exponent) {
+        // There is an exponent...
+        if (config.exponentMarker) {
+          exponent = config.exponentMarker + exponent;
+        } else {
+          exponent = config.exponentProduct + ' 10^{' + exponent + '}';
+        }
+      }
+
+      return sign + num + exponent;
+    }
+  }
+
+  if (config.scientificNotation === 'engineering') {
+    // Ensure the exponent is a multiple of 3
+    if (num === 0) {
+      result = '0';
+    } else {
+      var y = Math.abs(num);
+
+      var _exponent = Math.round(Math.log10(y));
+
+      _exponent = _exponent - _exponent % 3;
+      if (y < 1000) _exponent = 0;
+
+      var _mantissa = y / Math.pow(10, _exponent);
+
+      var _m = _mantissa.toString().match(/^(.*)\.(.*)$/);
+
+      if (_m && _m[1] && _m[2]) {
+        _mantissa = _m[1] + config.decimalMarker + _m[2];
+      }
+
+      if (config.groupSeparator) {
+        _mantissa = formatMantissa(_mantissa.toExponential(), config);
+      }
+
+      if (_exponent === 0) {
+        _exponent = '';
+      } else if (config.exponentMarker) {
+        _exponent = config.exponentMarker + _exponent;
+      } else {
+        _exponent = config.exponentProduct + ' 10^{' + _exponent + '}';
+      }
+
+      result = (num < 0 ? '-' : '') + _mantissa + _exponent;
+    }
+  } else {
+    var valString = typeof num === 'string' ? num : num.toString();
+
+    var _m2 = valString.match(/^(.*)[e|E]([-+]?[0-9]*)$/i);
+
+    var _base, _exponent2, _mantissa2;
+
+    _base = valString;
+    _mantissa2 = '';
+
+    if (_m2 && _m2[1] && _m2[2]) {
+      // There is an exponent...
+      _base = _m2[1];
+
+      if (config.exponentMarker) {
+        _exponent2 = config.exponentMarker + _m2[2];
+      } else {
+        _exponent2 = config.exponentProduct + ' 10^{' + _m2[2] + '}';
+      }
+    }
+
+    _m2 = _base.match(/^(.*)\.(.*)$/);
+
+    if (_m2 && _m2[1] && _m2[2]) {
+      _base = _m2[1];
+      _mantissa2 = _m2[2];
+    }
+
+    if (config.groupSeparator) {
+      _base = _base.replace(/\B(?=(\d{3})+(?!\d))/g, config.groupSeparator);
+      _mantissa2 = formatMantissa(_mantissa2, config);
+    }
+
+    if (_mantissa2) _mantissa2 = config.decimalMarker + _mantissa2;
+    result = _base + _mantissa2 + (_exponent2 || '');
+  }
+
+  return result;
+}
+/**
+*
+* @param {object} ast - Abstract Syntax Tree object (in canonical form)
+* @return {string} A LaTeX representation of the AST
+*/
+
+
+function asLatex(ast, options) {
+  var config = Object.assign({
+    precision: 14,
+    decimalMarker: '.',
+    groupSeparator: '\\, ',
+    product: '\\cdot ',
+    // \\times, \\,
+    exponentProduct: '\\cdot ',
+    exponentMarker: '',
+    arcSeparator: '\\,',
+    scientificNotation: 'auto',
+    // 'engineering', 'auto', 'on'
+    beginRepeatingDigits: '\\overline{',
+    endRepeatingDigits: '}'
+  }, options);
+  var result = '';
+  if (ast === undefined) return '';
+
+  if (typeof ast === 'string') {
+    ast = JSON.parse(ast);
+  }
+
+  if (ast.latex) {
+    // If ast.latex key is present, use it to render the element
+    result = ast.latex;
+  } else if (isNumber(ast)) {
+    var val = asMachineNumber(ast);
+
+    if (val === -Infinity) {
+      result = '-\\infty ';
+    } else if (val === Infinity) {
+      result = '\\infty ';
+    } else if (_typeof(ast.num) === 'object' && (typeof ast.num.re === 'string' || typeof ast.num.im === 'string')) {
+      var re = numberRe(ast);
+      var im = numberIm(ast);
+
+      if (isNaN(re) || isNaN(im)) {
+        result = '\\text{NaN}';
+      } else if (Math.abs(im) <= Number.EPSILON && Math.abs(re) <= Number.EPSILON) {
+        result = '0';
+      } else {
+        if (Math.abs(re) > Number.EPSILON) {
+          result = numberAsLatex(re, config);
+        }
+
+        if (Math.abs(im) > Number.EPSILON) {
+          if (Math.abs(re) > Number.EPSILON) {
+            result += im > 0 ? '+' : '';
+          }
+
+          result += (Math.abs(im) !== 1 ? numberAsLatex(im, config) : '') + '\\imaginaryI ';
+        }
+      }
+    } else if (isNaN(val)) {
+      result = '\\text{NaN}';
+    } else {
+      result = numberAsLatex(ast.num, config);
+    }
+
+    if (hasSup(ast)) result += '^{' + asLatex(ast.sup, config) + '}';
+    if (hasSub(ast)) result += '_{' + asLatex(ast.sub, config) + '}';
+  } else if (ast.group) {
+    result = asLatex(ast.group, config);
+
+    if (!isNumber(ast.group) && !asSymbol(ast.group)) {
+      result = wrapFence(ast.fence || '(),', result);
+    } else if (numberIm(ast.group) !== 0) {
+      result = wrapFence(ast.fence || '(),', result);
+    }
+
+    if (hasSup(ast)) result += '^{' + asLatex(ast.sup, config) + '}';
+    if (hasSub(ast)) result += '_{' + asLatex(ast.sub, config) + '}';
+  } else if (ast.fn) {
+    if (ast.fn === 'bind') {
+      result = asLatex(getArg(ast, 0), config) + '|_{';
+
+      if (ast.arg && ast.arg.length === 2) {
+        result += asLatex(getArg(ast, 1));
+      } else {
+        var sep = '';
+
+        for (var i = 1; i < ast.arg.length; i += 2) {
+          result += sep + asLatex(getArg(ast, i)) + ' = ' + asLatex(getArg(ast, i + 1));
+          sep = ', ';
+        }
+      }
+
+      result += '}';
+    } else if (ast.fn === 'divide') {
+      result = '\\frac{' + asLatex(getArg(ast, 0), config) + '}{' + asLatex(getArg(ast, 1), config) + '}';
+    } else if (ast.fn === 'negate') {
+      result = '-' + asLatex(getArg(ast, 0), config);
+    } else if (ast.fn === 'subtract') {
+      result = asLatex(getArg(ast, 0), config) + ' - ' + asLatex(getArg(ast, 1), config);
+    } else if ((ast.fn === 'add' || ast.fn === 'multiply') && Array.isArray(ast.arg)) {
+      var a = [];
+      var _iteratorNormalCompletion7 = true;
+      var _didIteratorError7 = false;
+      var _iteratorError7 = undefined;
+
+      try {
+        for (var _iterator7 = ast.arg[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
+          var exp = _step7.value;
+
+          if (exp.fn === 'add' || exp.fn === 'subtract') {
+            a.push(wrapFence('() ', asLatex(exp, config)));
+          } else if (isComplexWithRealAndImaginary(exp)) {
+            // Complex numbers that have both a real and imaginary part
+            // should be wrapped in parentheses
+            a.push(wrapFence('() ', asLatex(exp, config)));
+          } else if (hasSup(ast) && !(numberIm(exp) === 0 || numberIm(exp) === 1)) {
+            // Wrap with parentheses if there's an exponent
+            // and the imaginary part is neither 0 nor 1
+            a.push(wrapFence('() ', asLatex(exp, config)));
+          } else {
+            a.push(asLatex(exp, config));
+          }
+        }
+      } catch (err) {
+        _didIteratorError7 = true;
+        _iteratorError7 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
+            _iterator7.return();
+          }
+        } finally {
+          if (_didIteratorError7) {
+            throw _iteratorError7;
+          }
+        }
+      }
+
+      if (ast.fn === 'multiply') {
+        if (ast.arg && ast.arg.length === 2 && (isNumber(ast.arg[0]) || ast.arg[0].fn === 'divide') && (!isNumber(ast.arg[1]) || numberRe(ast.arg[1]) === 0 && numberIm(ast.arg[1]) === 1)) {
+          // Invisible times: 
+          // (number or fraction) * not a number
+          // or (number or fraction) * imaginary unit
+          result = a[0] + a[1];
+        } else {
+          result = a.join(' \\times ');
+        }
+      } else {
+        // Addition (and subtraction)
+        if (ast.arg && ast.arg.length === 1) {
+          if (ast.arg[0].fn === 'negate' || isNumber(ast.arg[0]) && asMachineNumber(ast.arg[0]) < 0) {
+            // a[0] has a negative sign
+            result = a[0];
+          } else {
+            // Single non-negative element, add a '+' in front
+            result = '+' + a[0];
+          }
+        } else {
+          result = a[0];
+
+          for (var _i2 = 1; _i2 < ast.arg.length; _i2++) {
+            if (ast.arg[_i2].fn === 'negate' || isNumber(ast.arg[_i2]) && asMachineNumber(ast.arg[_i2]) < 0) {
+              // a[i] already has a negative sign, so we can do an 
+              // implicit add
+              result += a[_i2];
+            } else {
+              result += ' + ' + a[_i2];
+            }
+          }
+        }
+      }
+    } else if (ast.fn === 'list' || ast.fn === 'list2') {
+      var _a = [];
+      var _iteratorNormalCompletion8 = true;
+      var _didIteratorError8 = false;
+      var _iteratorError8 = undefined;
+
+      try {
+        for (var _iterator8 = ast.arg[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
+          var _exp = _step8.value;
+
+          _a.push(asLatex(_exp, config));
+        }
+      } catch (err) {
+        _didIteratorError8 = true;
+        _iteratorError8 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion8 && _iterator8.return != null) {
+            _iterator8.return();
+          }
+        } finally {
+          if (_didIteratorError8) {
+            throw _iteratorError8;
+          }
+        }
+      }
+
+      result = _a.join(ast.fn === 'list2' ? '; ' : ', ');
+    } else if (ast.fn === 'pow' && Array.isArray(ast.arg) && ast.arg.length >= 2) {
+      result = asLatex(getArg(ast, 0), config);
+
+      if (!isNumber(getArg(ast, 0)) && !asSymbol(getArg(ast, 0))) {
+        result = wrapFence(ast.fence || '(),', result);
+      }
+
+      result += '^{' + asLatex(getArg(ast, 1), config) + '}';
+    } else if (ast.fn === 'equal' && ast.arg && ast.arg.length > 2) {
+      result = ast.arg.map(function (x) {
+        return asLatex(x, config);
+      }).join(' = ');
+    } else {
+      var fn = getLatexTemplateForFunction(ast.fn);
+      result = fn;
+      var argstring = '';
+      var parenRequired = /%(?![01_^])/.test(fn) && Array.isArray(ast.arg) && ast.arg.length > 1;
+
+      if (parenRequired) {
+        // Parenthesis are required if argument list is longer than 1
+        result += wrapFence.apply(void 0, [ast.fence || '(),'].concat(_toConsumableArray(ast.arg.map(function (x) {
+          return asLatex(x, config);
+        }))));
+      } else if (Array.isArray(ast.arg) && ast.arg.length > 0) {
+        // The parenthesis may be optional...
+        var arg0 = asLatex(getArg(ast, 0), config);
+        var arg1 = asLatex(getArg(ast, 1), config);
+
+        var argsn = _toConsumableArray(ast.arg);
+
+        if (/%0/.test(fn)) {
+          result = result.replace('%0', arg0);
+          argsn.shift();
+        }
+
+        if (/%1/.test(fn)) {
+          result = result.replace('%1', arg1);
+          argsn.shift();
+        }
+
+        if (argsn.length > 0) {
+          argstring = wrapFence.apply(void 0, [ast.fence || '(),'].concat(_toConsumableArray(argsn.map(function (x) {
+            return asLatex(x, config);
+          }))));
+        }
+      } else {
+        // Empty argument list
+        argstring = wrapFence(ast.fence || '(),', '');
+      }
+
+      if (hasSup(ast)) {
+        result = result.replace('%^', '^{' + asLatex(ast.sup, config) + '}');
+      } else {
+        result = result.replace('%^', '');
+      }
+
+      if (hasSub(ast)) {
+        result = result.replace('%_', '_{' + asLatex(ast.sub, config) + '}');
+      } else {
+        result = result.replace('%_', '');
+      } // Insert the arguments in the function template (%)
+
+
+      result = result.replace(/%(?![01_^])/, argstring); // If there are any placeholders left, remove them
+
+      result = result.replace('%0', '').replace('%1', '');
+    }
+  } else if (typeof ast.sym === 'string') {
+    result = asSymbol(ast); // Is it a Unicode value?
+
+    var m = result.match(/^&#x([0-9a-f]+);$/i);
+
+    if (m && m[1]) {
+      result = String.fromCodePoint(parseInt(m[1], 16));
+    } else {
+      m = result.match(/^&#([0-9]+);$/i);
+
+      if (m && m[1]) {
+        result = String.fromCodePoint(parseInt(m[1]));
+      }
+    } // Is there a variant info attached to it?
+
+
+    if (typeof ast.variant === 'string') {
+      var MATH_VARIANTS = {
+        'normal': 'mathrm',
+        'double-struck': 'mathbb',
+        'bold': 'mathbf',
+        // 'script': 'mathcal',
+        'fraktur': 'mathfrak',
+        'script': 'mathscr',
+        'sans-serif': 'mathsf',
+        'monospace': 'mathtt'
+      };
+      result = '\\' + MATH_VARIANTS[ast.variant] + '{' + result + '}';
+    }
+
+    if (hasSup(ast)) result += '^{' + asLatex(ast.sup, config) + '}';
+    if (hasSub(ast)) result += '_{' + asLatex(ast.sub, config) + '}';
+  } else if (typeof ast.text === 'string') {
+    result = '\\text{' + ast.text + '}';
+  } // If there was an error attached to this node,
+  // display it on a red background
+
+
+  if (typeof ast.error === 'string') {
+    result = '\\bbox[#F56165]{' + result + '}';
+  }
+
+  return result;
+} // Export the public interface for this module
+
+
+var _default = {
+  asLatex: asLatex,
+  asMachineNumber: asMachineNumber,
+  isNumber: isNumber,
+  asSymbol: asSymbol
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/addons/outputLatex.js b/dist/addons/outputLatex.js
new file mode 100644
index 000000000..c5b4a95ea
--- /dev/null
+++ b/dist/addons/outputLatex.js
@@ -0,0 +1,628 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
+
+var _color = _interopRequireDefault(require("../core/color.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * This module outputs a formula to LaTeX.
+ * 
+ * To use it, use the {@linkcode MathAtom#toLatex MathAtom.toLatex()}  method.
+ * 
+ * @module addons/outputLatex
+ * @private
+ */
+function findLongestRun(atoms, property, value) {
+  var i = 0;
+
+  while (atoms[i]) {
+    if (atoms[i].type !== 'mop' && atoms[i][property] !== value) break;
+    i++;
+  }
+
+  return i;
+}
+/**
+ * 
+ * @param {MathAtom} parent the parent or predecessor of the atom list
+ * @param {MathAtom[]} atoms the list of atoms to transform to LaTeX
+ * @param {boolean} expandMacro true if macros should be expanded
+ * @result {string} a LaTeX string
+ */
+
+
+function latexifyArray(parent, properties, atoms, expandMacro) {
+  if (atoms.length === 0) return '';
+
+  if (properties.length === 0) {
+    // We've (recursively) checked:
+    // all the atoms have the same properties
+    return atoms.map(function (x) {
+      return x.toLatex(expandMacro);
+    }).join('');
+  }
+
+  var result = '';
+  var prefix = '';
+  var suffix = '';
+  var prop = properties[0];
+  var i = findLongestRun(atoms, prop, atoms[0][prop]);
+
+  if (atoms[0].mode === 'text') {
+    if (prop === 'fontShape' && atoms[0].fontShape) {
+      if (atoms[0].fontShape === 'it') {
+        prefix = '\\textit{';
+        suffix = '}';
+      } else if (atoms[0].fontShape === 'sl') {
+        prefix = '\\textsl{';
+        suffix = '}';
+      } else if (atoms[0].fontShape === 'sc') {
+        prefix = '\\textsc{';
+        suffix = '}';
+      } else if (atoms[0].fontShape === 'n') {
+        prefix = '\\textup{';
+        suffix = '}';
+      } else {
+        prefix = '\\text{\\fontshape{' + atoms[0].fontShape + '}';
+        suffix = '}';
+      }
+    } else if (prop === 'fontSeries' && atoms[0].fontSeries) {
+      if (atoms[0].fontSeries === 'b') {
+        prefix = '\\textbf{';
+        suffix = '}';
+      } else if (atoms[0].fontSeries === 'l') {
+        prefix = '\\textlf{';
+        suffix = '}';
+      } else if (atoms[0].fontSeries === 'm') {
+        prefix = '\\textmd{';
+        suffix = '}';
+      } else {
+        prefix = '\\text{\\fontseries{' + atoms[0].fontSeries + '}';
+        suffix = '}';
+      }
+    } else if (prop === 'mode') {
+      var allAtomsHaveShapeOrSeriesOrFontFamily = true;
+
+      for (var j = 0; j < i; j++) {
+        if (!atoms[j].fontSeries && !atoms[j].fontShape && !atoms[j].fontFamily) {
+          allAtomsHaveShapeOrSeriesOrFontFamily = false;
+          break;
+        }
+      }
+
+      if (!allAtomsHaveShapeOrSeriesOrFontFamily) {
+        // Wrap in text, only if there isn't a shape or series on 
+        // all the atoms, because if so, it will be wrapped in a 
+        // \\textbf, \\textit, etc... and the \\text would be redundant
+        prefix = '\\text{';
+        suffix = '}';
+      }
+    } else if (prop === 'fontSize' && atoms[0].fontSize) {
+      var command = {
+        'size1': 'tiny',
+        'size2': 'scriptsize',
+        'size3': 'footnotesize',
+        'size4': 'small',
+        'size5': 'normalsize',
+        'size6': 'large',
+        'size7': 'Large',
+        'size8': 'LARGE',
+        'size9': 'huge',
+        'size10': 'Huge'
+      }[atoms[0].fontSize] || '';
+      prefix = '{\\' + command + ' ';
+      suffix = '}';
+    } else if (prop === 'fontFamily' && atoms[0].fontFamily) {
+      var _command = {
+        'cmr': 'textrm',
+        'cmtt': 'texttt',
+        'cmss': 'textsf'
+      }[atoms[0].fontFamily] || '';
+
+      if (!_command) {
+        prefix += '{\\fontfamily{' + atoms[0].fontFamily + '}';
+        suffix = '}';
+      } else {
+        prefix = '\\' + _command + '{';
+        suffix = '}';
+      }
+    }
+  } else if (atoms[0].mode === 'math') {
+    if (prop === 'fontSeries') {
+      if (atoms[0].fontSeries === 'b') {
+        prefix = '\\mathbf{';
+        suffix = '}';
+      } else if (atoms[0].fontSeries && atoms[0].fontSeries !== 'n') {
+        prefix = '{\\fontSeries{' + atoms[0].fontSeries + '}';
+        suffix = '}';
+      }
+    } else if (prop === 'fontShape') {
+      if (atoms[0].fontShape === 'it') {
+        prefix = '\\mathit{';
+        suffix = '}';
+      } else if (atoms[0].fontShape === 'n') {
+        prefix = "{\\upshape ";
+        suffix = '}';
+      } else if (atoms[0].fontShape && atoms[0].fontShape !== 'n') {
+        prefix = '{\\fontShape{' + atoms[0].fontShape + '}';
+        suffix = '}';
+      }
+    } else if (prop === 'fontSize' && atoms[0].fontSize) {
+      var _command2 = {
+        'size1': 'tiny',
+        'size2': 'scriptsize',
+        'size3': 'footnotesize',
+        'size4': 'small',
+        'size5': 'normalsize',
+        'size6': 'large',
+        'size7': 'Large',
+        'size8': 'LARGE',
+        'size9': 'huge',
+        'size10': 'Huge'
+      }[atoms[0].fontSize] || '';
+
+      prefix = '{\\' + _command2 + ' ';
+      suffix = '}';
+    } else if (prop === 'fontFamily' && atoms[0].fontFamily) {
+      if (!/^(math|main|mainrm)$/.test(atoms[0].fontFamily)) {
+        var _command3 = {
+          'cal': 'mathcal',
+          'frak': 'mathfrak',
+          'bb': 'mathbb',
+          'scr': 'mathscr',
+          'cmr': 'mathrm',
+          'cmtt': 'mathtt',
+          'cmss': 'mathsf'
+        }[atoms[0].fontFamily] || '';
+
+        if (!_command3) {
+          prefix += '{\\fontfamily{' + atoms[0].fontFamily + '}';
+          suffix = '}';
+        } else {
+          prefix = '\\' + _command3 + '{';
+          suffix = '}';
+        }
+      }
+    }
+  }
+
+  if (prop === 'color' && atoms[0].color && atoms[0].color !== 'none' && (!parent || parent.color !== atoms[0].color)) {
+    prefix = '\\textcolor{' + _color.default.colorToString(atoms[0].color) + '}{';
+    suffix = '}';
+  }
+
+  if (prop === 'backgroundColor' && atoms[0].backgroundColor && atoms[0].backgroundColor !== 'none' && (!parent || parent.backgroundColor !== atoms[0].backgroundColor)) {
+    prefix = '\\colorbox{' + _color.default.colorToString(atoms[0].backgroundColor) + '}{';
+    suffix = '}';
+  }
+
+  result += prefix;
+  result += latexifyArray(parent, properties.slice(1), atoms.slice(0, i), expandMacro);
+  result += suffix; // latexify the rest
+
+  result += latexifyArray(parent, properties, atoms.slice(i), expandMacro);
+  return result;
+}
+/**
+ * Given an atom or an array of atoms, return a LaTeX string representation
+ * @return {string}
+ * @param {string|MathAtom|MathAtom[]} value
+ * @private
+ */
+
+
+function latexify(parent, value, expandMacro) {
+  var result = '';
+
+  if (Array.isArray(value) && value.length > 0) {
+    if (value[0].type === 'first') {
+      // Remove the 'first' atom, if present
+      value = value.slice(1);
+      if (value.length === 0) return '';
+    }
+
+    result = latexifyArray(parent, ['mode', 'fontShape', 'fontSeries', 'fontSize', 'color', 'backgroundColor', 'fontFamily'], value, expandMacro); // if (result.startsWith('{') && result.endsWith('}')) {
+    //     result = result.slice(1, result.length - 1);
+    // }
+  } else if (typeof value === 'number' || typeof value === 'boolean') {
+    result = value.toString();
+  } else if (typeof value === 'string') {
+    result = value.replace(/\s/g, '~');
+  } else if (value && typeof value.toLatex === 'function') {
+    result = value.toLatex(expandMacro);
+  }
+
+  return result;
+}
+/**
+ * Return a LaTeX representation of the atom.
+ *
+ * @param {boolean} expandMacro - If true, macros are fully expanded. This will
+ * no longer round-trip.
+ *
+ * @return {string}
+ * @method MathAtom#toLatex
+ */
+
+
+_mathAtom.default.MathAtom.prototype.toLatex = function (expandMacro) {
+  expandMacro = expandMacro === undefined ? false : expandMacro;
+  var result = '';
+  var col,
+      row = 0;
+  var i = 0;
+  var m = !this.latex ? null : this.latex.match(/^(\\[^{\s0-9]+)/);
+  var command = m ? m[1] : null;
+
+  switch (this.type) {
+    case 'group':
+      result += this.latexOpen || (this.cssId || this.cssClass ? '' : '{');
+      if (this.cssId) result += '\\cssId{' + this.cssId + '}{';
+
+      if (this.cssClass === 'ML__emph') {
+        result += '\\emph{' + latexify(this, this.body, expandMacro) + '}';
+      } else {
+        if (this.cssClass) result += '\\class{' + this.cssClass + '}{';
+        result += expandMacro ? latexify(this, this.body, true) : this.latex || latexify(this, this.body, false);
+        if (this.cssClass) result += '}';
+      }
+
+      if (this.cssId) result += '}';
+      result += this.latexClose || (this.cssId || this.cssClass ? '' : '}');
+      break;
+
+    case 'array':
+      result += '\\begin{' + this.env.name + '}';
+
+      if (this.env.name === 'array') {
+        result += '{';
+
+        if (this.colFormat) {
+          for (i = 0; i < this.colFormat.length; i++) {
+            if (this.colFormat[i].align) {
+              result += this.colFormat[i].align;
+            } else if (this.colFormat[i].rule) {
+              result += '|';
+            }
+          }
+        }
+
+        result += '}';
+      }
+
+      for (row = 0; row < this.array.length; row++) {
+        for (col = 0; col < this.array[row].length; col++) {
+          if (col > 0) result += ' & ';
+          result += latexify(this, this.array[row][col], expandMacro);
+        } // Adds a separator between rows (but not after the last row)
+
+
+        if (row < this.array.length - 1) {
+          result += ' \\\\ ';
+        }
+      }
+
+      result += '\\end{' + this.env.name + '}';
+      break;
+
+    case 'root':
+      result = latexify(this, this.body, expandMacro);
+      break;
+
+    case 'genfrac':
+      if (/^(choose|atop|over)$/.test(this.body)) {
+        // Infix commands.
+        result += '{';
+        result += latexify(this, this.numer, expandMacro);
+        result += '\\' + this.body + ' ';
+        result += latexify(this, this.denom, expandMacro);
+        result += '}';
+      } else {
+        // @todo: deal with fracs delimiters
+        result += command;
+        result += "{".concat(latexify(this, this.numer, expandMacro), "}{").concat(latexify(this, this.denom, expandMacro), "}");
+      }
+
+      break;
+
+    case 'surd':
+      result += '\\sqrt';
+
+      if (this.index) {
+        result += '[';
+        result += latexify(this, this.index, expandMacro);
+        result += ']';
+      }
+
+      result += "{".concat(latexify(this, this.body, expandMacro), "}");
+      break;
+
+    case 'leftright':
+      if (this.inner) {
+        result += '\\left' + (this.leftDelim || '.');
+        if (this.leftDelim && this.leftDelim.length > 1) result += ' ';
+        result += latexify(this, this.body, expandMacro);
+        result += '\\right' + (this.rightDelim || '.');
+        if (this.rightDelim && this.rightDelim.length > 1) result += ' ';
+      } else {
+        result += '\\mleft' + (this.leftDelim || '.');
+        if (this.leftDelim && this.leftDelim.length > 1) result += ' ';
+        result += latexify(this, this.body, expandMacro);
+        result += '\\mright' + (this.rightDelim || '.');
+        if (this.rightDelim && this.rightDelim.length > 1) result += ' ';
+      }
+
+      break;
+
+    case 'delim':
+    case 'sizeddelim':
+      result += command + '{' + this.delim + '}';
+      break;
+
+    case 'rule':
+      result += command;
+
+      if (this.shift) {
+        result += "[".concat(latexify(this, this.shift, expandMacro), "em]");
+      }
+
+      result += "{".concat(latexify(this, this.width, expandMacro), "em}{").concat(latexify(this, this.height, expandMacro), "em}");
+      break;
+
+    case 'line':
+    case 'overlap':
+    case 'accent':
+      result += "".concat(command, "{").concat(latexify(this, this.body, expandMacro), "}");
+      break;
+
+    case 'overunder':
+      result += "".concat(command, "{").concat(latexify(this, this.overscript || this.underscript, expandMacro), "}{").concat(latexify(parent, this.body, expandMacro), "}");
+      break;
+
+    case 'mord':
+    case 'minner':
+    case 'mbin':
+    case 'mrel':
+    case 'mpunct':
+    case 'mopen':
+    case 'mclose':
+    case 'textord':
+    case '':
+      // mode = text
+      if (/^\\(mathbin|mathrel|mathopen|mathclose|mathpunct|mathord|mathinner)/.test(command)) {
+        result += command + '{' + latexify(this, this.body, expandMacro) + '}';
+      } else if (command === '\\char"') {
+        result += this.latex + ' ';
+      } else if (command === "\\unicode") {
+        result += "\\unicode{\"";
+        result += ('000000' + this.body.charCodeAt(0).toString(16)).toUpperCase().substr(-6);
+        result += '}';
+      } else if (this.latex || typeof this.body === 'string') {
+        // Not ZERO-WIDTH
+        if (this.latex && this.latex[0] === '\\') {
+          result += this.latex;
+
+          if (/[a-zA-Z0-9]$/.test(this.latex)) {
+            result += ' ';
+          }
+        } else if (command) {
+          result += command;
+        } else {
+          result += this.body !== "\u200B" ? this.latex || this.body : '';
+        }
+      }
+
+      break;
+
+    case 'mop':
+      if (this.body !== "\u200B") {
+        // Not ZERO-WIDTH
+        if (command === '\\mathop') {
+          // The argument to mathop is math, therefor this.body can be an expression
+          result += command + '{' + latexify(this, this.body, expandMacro) + '}';
+        } else if (command === '\\operatorname') {
+          // The argument to operator name is text, therefore this.body is a string
+          result += command + '{' + this.body + '}';
+        } else {
+          if (this.latex && this.latex[0] === '\\') {
+            result += this.latex;
+
+            if (/[a-zA-Z0-9]$/.test(this.latex)) {
+              result += ' ';
+            }
+          } else if (command) {
+            result += command;
+          } else {
+            result += this.body !== "\u200B" ? this.latex || this.body : '';
+          }
+        }
+      }
+
+      if (this.explicitLimits) {
+        if (this.limits === 'limits') result += '\\limits ';
+        if (this.limits === 'nolimits') result += '\\nolimits ';
+      }
+
+      break;
+
+    case 'box':
+      if (command === '\\bbox') {
+        result += command;
+
+        if (isFinite(this.padding) || typeof this.border !== 'undefined' || typeof this.backgroundcolor !== 'undefined') {
+          var bboxParams = [];
+
+          if (isFinite(this.padding)) {
+            bboxParams.push(Math.floor(1e2 * this.padding) / 1e2 + 'em');
+          }
+
+          if (this.border) {
+            bboxParams.push('border:' + this.border);
+          }
+
+          if (this.backgroundcolor) {
+            bboxParams.push(_color.default.colorToString(this.backgroundcolor));
+          }
+
+          result += "[".concat(bboxParams.join(','), "]");
+        }
+
+        result += "{".concat(latexify(this, this.body, expandMacro), "}");
+      } else if (command === '\\boxed') {
+        result += "\\boxed{".concat(latexify(this, this.body, expandMacro), "}");
+      } else {
+        // \\colorbox, \\fcolorbox
+        result += command;
+
+        if (this.framecolor) {
+          result += "{".concat(_color.default.colorToString(this.framecolor), "}");
+        }
+
+        if (this.backgroundcolor) {
+          result += "{".concat(_color.default.colorToString(this.backgroundcolor), "}");
+        }
+
+        result += "{".concat(latexify(this, this.body, expandMacro), "}");
+      }
+
+      break;
+
+    case 'spacing':
+      // Three kinds of spacing commands:
+      // \hskip and \kern which take one implicit parameter
+      // \hspace and hspace* with take one *explicit* parameter
+      // \quad, etc... which take no parameters.
+      result += command;
+
+      if (command === '\\hspace' || command === '\\hspace*') {
+        result += '{';
+
+        if (this.width) {
+          result += this.width + 'em';
+        } else {
+          result += '0em';
+        }
+
+        result += '}';
+      } else {
+        result += ' ';
+
+        if (this.width) {
+          result += this.width + 'em ';
+        }
+      }
+
+      break;
+
+    case 'enclose':
+      result += command;
+
+      if (command === '\\enclose') {
+        result += '{';
+        var sep = '';
+
+        for (var notation in this.notation) {
+          if (this.notation.hasOwnProperty(notation) && this.notation[notation]) {
+            result += sep + notation;
+            sep = ' ';
+          }
+        }
+
+        result += '}'; // \enclose can have optional parameters...
+
+        var style = '';
+        sep = '';
+
+        if (this.backgroundcolor && this.backgroundcolor !== 'transparent') {
+          style += sep + 'mathbackground="' + _color.default.colorToString(this.backgroundcolor) + '"';
+          sep = ',';
+        }
+
+        if (this.shadow && this.shadow !== 'auto') {
+          style += sep + 'shadow="' + this.shadow + '"';
+          sep = ',';
+        }
+
+        if (this.strokeWidth !== 1 || this.strokeStyle !== 'solid') {
+          style += sep + this.borderStyle;
+          sep = ',';
+        } else if (this.strokeColor && this.strokeColor !== 'currentColor') {
+          style += sep + 'mathcolor="' + _color.default.colorToString(this.strokeColor) + '"';
+          sep = ',';
+        }
+
+        if (style) {
+          result += "[".concat(style, "]");
+        }
+      }
+
+      result += "{".concat(latexify(this, this.body, expandMacro), "}");
+      break;
+
+    case 'mathstyle':
+      result += '\\' + this.mathstyle + ' ';
+      break;
+
+    case 'space':
+      result += this.latex;
+      break;
+
+    case 'placeholder':
+      result += '\\placeholder{' + (this.value || '') + '}';
+      break;
+
+    case 'first':
+    case 'command':
+    case 'msubsup':
+      break;
+
+    case 'error':
+      result += this.latex;
+      break;
+
+    default:
+      console.warn('Unexpected atom type "' + this.type + '" in "' + (this.latex || this.value) + '"');
+      break;
+  }
+
+  if (this.superscript) {
+    var sup = latexify(this, this.superscript, expandMacro);
+
+    if (sup.length === 1) {
+      if (sup === "\u2032") {
+        // PRIME
+        sup = '\\prime ';
+      } else if (sup === "\u2033") {
+        // DOUBLE-PRIME
+        sup = '\\doubleprime ';
+      }
+
+      result += '^' + sup;
+    } else {
+      result += '^{' + sup + '}';
+    }
+  }
+
+  if (this.subscript) {
+    var sub = latexify(this, this.subscript, expandMacro);
+
+    if (sub.length === 1) {
+      result += '_' + sub;
+    } else {
+      result += '_{' + sub + '}';
+    }
+  }
+
+  return result;
+}; // Export the public interface for this module
+
+
+var _default = {};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/addons/outputMathML.js b/dist/addons/outputMathML.js
new file mode 100644
index 000000000..059849a00
--- /dev/null
+++ b/dist/addons/outputMathML.js
@@ -0,0 +1,887 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
+
+var _color = _interopRequireDefault(require("../core/color.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * 
+ * This module outputs a formula to MathML.
+ * 
+ * To use it, use the {@linkcode MathAtom#toMathML MathAtom.toMathML()}  method.
+ * 
+ * @module addons/outputMathML
+ * @private
+ */
+var SPECIAL_OPERATORS = {
+  '\\pm': '&#x00b1;',
+  '\\times': '&#x00d7;',
+  '\\colon': ':',
+  '\\vert': '|',
+  '\\Vert': "\u2225",
+  '\\mid': "\u2223",
+  '\\lbrace': '{',
+  '\\rbrace': '}',
+  '\\langle': "\u27E8",
+  '\\rangle': "\u27E9",
+  '\\lfloor': "\u230A",
+  '\\rfloor': "\u230B",
+  '\\lceil': "\u2308",
+  '\\rceil': "\u2309",
+  '\\vec': '&#x20d7;',
+  '\\acute': '&#x00b4;',
+  '\\grave': '&#x0060;',
+  '\\dot': '&#x02d9;',
+  '\\ddot': '&#x00a8;',
+  '\\tilde': '&#x007e;',
+  '\\bar': '&#x00af;',
+  '\\breve': '&#x02d8;',
+  '\\check': '&#x02c7;',
+  '\\hat': '&#x005e;'
+};
+
+function xmlEscape(str) {
+  return str // .replace(/&/g, '&amp;')
+  .replace(/"/g, '&quot;').replace(/'/g, '&#39;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+}
+
+function makeID(id, options) {
+  if (!id || !options.generateID) return ''; // Note: the 'extid' attribute is recognized by SRE as an attribute
+  // to be passed to SSML as a <mark> tag.
+
+  return ' extid="' + id + '"';
+}
+
+function scanIdentifier(stream, final, options) {
+  var result = false;
+  final = final || stream.atoms.length;
+  var mathML = '';
+  var body = '';
+  var superscript = -1;
+  var subscript = -1;
+  var atom = stream.atoms[stream.index];
+
+  if (stream.index < final && (atom.type === 'mord' || atom.type === 'textord') && '0123456789,.'.indexOf(atom.body) < 0) {
+    body = atom.toMathML(options);
+
+    if (atom.superscript) {
+      superscript = stream.index;
+    }
+
+    if (atom.subscript) {
+      subscript = stream.index;
+    }
+
+    stream.index += 1;
+  }
+
+  if (body.length > 0) {
+    result = true; // If there are separate atoms for sub/sup, record them
+
+    if (isSuperscriptAtom(stream)) {
+      superscript = stream.index;
+      stream.index += 1;
+    }
+
+    if (isSubscriptAtom(stream)) {
+      subscript = stream.index;
+      stream.index += 1;
+    }
+
+    if (superscript >= 0 && subscript >= 0) {
+      mathML = '<msubsup>' + body;
+      mathML += toMathML(stream.atoms[subscript].subscript, 0, 0, options).mathML;
+      mathML += toMathML(stream.atoms[superscript].superscript, 0, 0, options).mathML;
+      mathML += '</msubsup>';
+    } else if (superscript >= 0) {
+      mathML = '<msup>' + body;
+
+      if (isSuperscriptAtom(stream)) {
+        // There's another superscript after this one. Maybe double-prime?
+        var sup = toMathML(stream.atoms[superscript].superscript, 0, 0, options).mathML;
+        var sup2 = toMathML(stream.atoms[superscript + 1].superscript, 0, 0, options).mathML;
+
+        if ((sup === "<mi>\u2032</mi>" || sup === '<mi>&#x2032;</mi>') && (sup2 === "<mi>\u2032</mi>" || sup2 === '<mi>&#x2032;</mi>')) {
+          mathML += '<mi>&#x2033;</mi>';
+        } else if (sup === "<mi>\u2032</mi>" || sup === '<mi>&#x2032;</mi>') {
+          mathML += '<mi>&#x2032;</mi>';
+        } else {
+          mathML += sup;
+        }
+      } else {
+        mathML += toMathML(stream.atoms[superscript].superscript, 0, 0, options).mathML;
+      }
+
+      mathML += '</msup>';
+    } else if (subscript >= 0) {
+      mathML = '<msub>' + body;
+      mathML += toMathML(stream.atoms[subscript].subscript, 0, 0, options).mathML;
+      mathML += '</msub>';
+    } else {
+      mathML = body;
+    }
+
+    if ((stream.lastType === 'mi' || stream.lastType === 'mn' || stream.lastType === 'mtext' || stream.lastType === 'fence') && !/^<mo>(.*)<\/mo>$/.test(mathML)) {
+      mathML = '<mo>&#x2062;</mo>' + mathML; // INVISIBLE TIMES
+    }
+
+    if (body.endsWith('>f</mi>') || body.endsWith('>g</mi>')) {
+      mathML += '<mo>&#x2061;</mo>'; // APPLY FUNCTION
+
+      stream.lastType = 'applyfunction';
+    } else {
+      stream.lastType = /^<mo>(.*)<\/mo>$/.test(mathML) ? 'mo' : 'mi';
+    }
+
+    stream.mathML += mathML;
+  }
+
+  return result;
+}
+/**
+ * Return true if the current atom is a standalone superscript atom
+ * i.e. an atom with no content, except of a superscript.
+ * Superscripts can be encoded either as an attribute on the last atom
+ * or as a standalone, empty, atom following the one to which it applies.
+ * @param {object} stream
+ */
+
+
+function isSuperscriptAtom(stream) {
+  return stream.index < stream.atoms.length && stream.atoms[stream.index].superscript && stream.atoms[stream.index].type === 'msubsup';
+}
+
+function isSubscriptAtom(stream) {
+  return stream.index < stream.atoms.length && stream.atoms[stream.index].subscript && stream.atoms[stream.index].type === 'msubsup';
+}
+
+function indexOfSuperscriptInNumber(stream) {
+  var result = -1;
+  var i = stream.index;
+  var done = false;
+  var found = false;
+
+  while (i < stream.atoms.length && !done && !found) {
+    done = stream.atoms[i].type !== 'mord' || '0123456789,.'.indexOf(stream.atoms[i].body) < 0;
+    found = !done && stream.atoms[i].superscript;
+    i++;
+  }
+
+  if (found) {
+    result = i - 1;
+  }
+
+  return result;
+}
+
+function parseSubsup(base, stream, options) {
+  var result = false;
+  var mathML = '';
+  var atom = stream.atoms[stream.index - 1];
+  if (!atom) return false;
+
+  if (!atom.superscript && !atom.subscript) {
+    if (isSuperscriptAtom(stream) || isSubscriptAtom(stream)) {
+      atom = stream.atoms[stream.index];
+      stream.index += 1;
+    }
+  }
+
+  if (!atom) return false;
+
+  if (atom.superscript && atom.subscript) {
+    mathML = '<msubsup>' + base;
+    mathML += toMathML(atom.subscript, 0, 0, options).mathML;
+    mathML += toMathML(atom.superscript, 0, 0, options).mathML;
+    mathML += '</msubsup>';
+  } else if (atom.superscript) {
+    mathML = '<msup>' + base;
+    mathML += toMathML(atom.superscript, 0, 0, options).mathML;
+    mathML += '</msup>';
+  } else if (atom.subscript) {
+    mathML = '<msub>' + base;
+    mathML += toMathML(atom.subscript, 0, 0, options).mathML;
+    mathML += '</msub>';
+  }
+
+  if (mathML.length > 0) {
+    result = true;
+    stream.mathML += mathML;
+    stream.lastType = '';
+  }
+
+  return result;
+}
+
+function scanText(stream, final, options) {
+  var result = false;
+  final = final || stream.atoms.length;
+  var initial = stream.index;
+  var mathML = '';
+
+  while (stream.index < final && stream.atoms[stream.index].mode === 'text') {
+    mathML += stream.atoms[stream.index].body ? stream.atoms[stream.index].body : ' ';
+    stream.index += 1;
+  }
+
+  if (mathML.length > 0) {
+    result = true;
+    mathML = '<mtext' + makeID(stream.atoms[initial].id, options) + '>' + mathML + '</mtext>';
+    stream.mathML += mathML;
+    stream.lastType = 'mtext';
+  }
+
+  return result;
+}
+
+function scanNumber(stream, final, options) {
+  var result = false;
+  final = final || stream.atoms.length;
+  var initial = stream.index;
+  var mathML = '';
+  var superscript = indexOfSuperscriptInNumber(stream);
+
+  if (superscript >= 0 && superscript < final) {
+    final = superscript;
+  }
+
+  while (stream.index < final && stream.atoms[stream.index].type === 'mord' && '0123456789,.'.indexOf(stream.atoms[stream.index].body) >= 0) {
+    mathML += stream.atoms[stream.index].body;
+    stream.index += 1;
+  }
+
+  if (mathML.length > 0) {
+    result = true;
+    mathML = '<mn' + makeID(stream.atoms[initial].id, options) + '>' + mathML + '</mn>';
+
+    if (superscript < 0 && isSuperscriptAtom(stream)) {
+      superscript = stream.index;
+      stream.index += 1;
+    }
+
+    if (superscript >= 0) {
+      mathML = '<msup>' + mathML;
+      mathML += toMathML(stream.atoms[superscript].superscript, 0, 0, options).mathML;
+      mathML += '</msup>';
+    }
+
+    stream.mathML += mathML;
+    stream.lastType = 'mn';
+  }
+
+  return result;
+}
+
+function scanFence(stream, final, options) {
+  var result = false;
+  final = final || stream.atoms.length;
+  var mathML = '';
+  var lastType = '';
+
+  if (stream.index < final && stream.atoms[stream.index].type === 'mopen') {
+    var found = false;
+    var depth = 0;
+    var openIndex = stream.index;
+    var closeIndex = -1;
+    var index = openIndex + 1;
+
+    while (index < final && !found) {
+      if (stream.atoms[index].type === 'mopen') {
+        depth += 1;
+      } else if (stream.atoms[index].type === 'mclose') {
+        depth -= 1;
+      }
+
+      if (depth === -1) {
+        found = true;
+        closeIndex = index;
+      }
+
+      index += 1;
+    }
+
+    if (found) {
+      // TODO: could add attribute indicating it's a fence (fence=true)
+      mathML = '<mrow>';
+      mathML += toMo(stream.atoms[openIndex], options);
+      mathML += toMathML(stream.atoms, openIndex + 1, closeIndex, options).mathML; // TODO: could add attribute indicating it's a fence (fence=true)
+
+      mathML += toMo(stream.atoms[closeIndex], options);
+      mathML += '</mrow>';
+
+      if (stream.lastType === 'mi' || stream.lastType === 'mn' || stream.lastType === 'mfrac' || stream.lastType === 'fence') {
+        mathML = '<mo>&#x2062;</mo>' + mathML; // INVISIBLE TIMES
+      }
+
+      stream.index = closeIndex + 1;
+
+      if (parseSubsup(mathML, stream, options)) {
+        result = true;
+        stream.lastType = '';
+        mathML = '';
+      }
+
+      lastType = 'fence';
+    }
+  }
+
+  if (mathML.length > 0) {
+    result = true;
+    stream.mathML += mathML;
+    stream.lastType = lastType;
+  }
+
+  return result;
+}
+
+function scanOperator(stream, final, options) {
+  var result = false;
+  final = final || stream.atoms.length;
+  var mathML = '';
+  var lastType = '';
+  var atom = stream.atoms[stream.index];
+
+  if (stream.index < final && (atom.type === 'mbin' || atom.type === 'mrel')) {
+    mathML += stream.atoms[stream.index].toMathML(options);
+    stream.index += 1;
+    lastType = 'mo';
+  } else if (stream.index < final && atom.type === 'mop') {
+    // mathML += '<mrow>';
+    if (atom.limits === 'limits' && (atom.superscript || atom.subscript)) {
+      // Operator with limits, e.g. \sum
+      var op = toMo(atom, options);
+
+      if (atom.superscript && atom.subscript) {
+        // Both superscript and subscript
+        mathML += (atom.limits !== 'nolimits' ? '<munderover>' : '<msubsup>') + op;
+        mathML += toMathML(atom.subscript, 0, 0, options).mathML;
+        mathML += toMathML(atom.superscript, 0, 0, options).mathML;
+        mathML += atom.limits !== 'nolimits' ? '</munderover>' : '</msubsup>';
+      } else if (atom.superscript) {
+        // Superscript only
+        mathML += (atom.limits !== 'nolimits' ? '<mover>' : '<msup>') + op;
+        mathML += toMathML(atom.superscript, 0, 0, options).mathML;
+        mathML += atom.limits !== 'nolimits' ? '</mover>' : '</msup>';
+      } else {
+        // Subscript only
+        mathML += (atom.limits !== 'nolimits' ? '<munder>' : '<msub>') + op;
+        mathML += toMathML(atom.subscript, 0, 0, options).mathML;
+        mathML += atom.limits !== 'nolimits' ? '</munder>' : '</msub>';
+      }
+
+      lastType = 'mo';
+    } else {
+      var _atom = stream.atoms[stream.index];
+      var isUnit = _atom.latex.indexOf('\\operatorname') === 0;
+
+      var _op = isUnit ? '<mi class="MathML-Unit"' + makeID(_atom.id, options) + '>' + toString(_atom.body) + '</mi>' : toMo(_atom, options);
+
+      mathML += _op;
+      stream.index += 1;
+
+      if (parseSubsup(mathML, stream, options)) {
+        result = true;
+        stream.lastType = '';
+        mathML = '';
+      }
+
+      stream.index -= 1;
+
+      if (!isUnit && !/^<mo>(.*)<\/mo>$/.test(_op)) {
+        mathML += '<mo>&#x2061;</mo>'; // APPLY FUNCTION
+        // mathML += scanArgument(stream);
+
+        lastType = 'applyfunction';
+      } else {
+        lastType = isUnit ? 'mi' : 'mo';
+      }
+    } // mathML += '</mrow>';
+
+
+    if ((stream.lastType === 'mi' || stream.lastType === 'mn') && !/^<mo>(.*)<\/mo>$/.test(mathML)) {
+      mathML = '<mo>&#x2062;</mo>' + mathML; // INVISIBLE TIMES
+    }
+
+    stream.index += 1;
+  }
+
+  if (mathML.length > 0) {
+    result = true;
+    stream.mathML += mathML;
+    stream.lastType = lastType;
+  }
+
+  return result;
+}
+/**
+ * Given an atom or an array of atoms, return their MathML representation as
+ * a string.
+ * @return {string}
+ * @param {string|MathAtom|MathAtom[]} input
+ * @param {number} initial index of the input to start conversion from
+ * @param {number} final last index of the input to stop conversion to
+ * @private
+ */
+
+
+function toMathML(input, initial, final, options) {
+  var result = {
+    atoms: input,
+    index: initial || 0,
+    mathML: '',
+    lastType: ''
+  };
+  final = final || (input ? input.length : 0);
+
+  if (typeof input === 'number' || typeof input === 'boolean') {
+    result.mathML = input.toString();
+  } else if (typeof input === 'string') {
+    result.mathML = input;
+  } else if (input && typeof input.toMathML === 'function') {
+    result.mathML = input.toMathML(options);
+  } else if (Array.isArray(input)) {
+    var count = 0;
+
+    while (result.index < final) {
+      if (scanText(result, final, options) || scanNumber(result, final, options) || scanIdentifier(result, final, options) || scanOperator(result, final, options) || scanFence(result, final, options)) {
+        count += 1;
+      } else if (result.index < final) {
+        var mathML = result.atoms[result.index].toMathML(options);
+
+        if (result.lastType === 'mn' && mathML.length > 0 && result.atoms[result.index].type === 'genfrac') {
+          // If this is a fraction preceded by a number (e.g. 2 1/2),
+          // add an "invisible plus" (U+0264) character in front of it
+          mathML = '<mo>&#x2064;</mo>' + mathML;
+        }
+
+        if (result.atoms[result.index].type === 'genfrac') {
+          result.lastType = 'mfrac';
+        } else {
+          result.lastType = '';
+        }
+
+        if (mathML.length > 0) {
+          result.mathML += mathML;
+          count += 1;
+        }
+
+        result.index += 1;
+      }
+    } // If there are more than a single element, wrap them in a mrow tag.
+
+
+    if (count > 1) {
+      result.mathML = '<mrow>' + result.mathML + '</mrow>';
+    }
+  }
+
+  return result;
+}
+
+function toMo(atom, options) {
+  var result = '';
+  var body = toString(atom.body);
+
+  if (body) {
+    result = '<mo' + makeID(atom.id, options) + '>' + body + '</mo>';
+  }
+
+  return result;
+}
+
+function toString(atoms) {
+  if (!atoms) return '';
+  if (typeof atoms === 'string') return xmlEscape(atoms);
+
+  if (!Array.isArray(atoms) && typeof atoms.body === 'string') {
+    return xmlEscape(atoms.body);
+  }
+
+  var result = '';
+  var _iteratorNormalCompletion = true;
+  var _didIteratorError = false;
+  var _iteratorError = undefined;
+
+  try {
+    for (var _iterator = atoms[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      var atom = _step.value;
+
+      if (typeof atom.body === 'string') {
+        result += atom.body;
+      }
+    }
+  } catch (err) {
+    _didIteratorError = true;
+    _iteratorError = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion && _iterator.return != null) {
+        _iterator.return();
+      }
+    } finally {
+      if (_didIteratorError) {
+        throw _iteratorError;
+      }
+    }
+  }
+
+  return xmlEscape(result);
+}
+/**
+ * Return a MathML fragment representation of a single atom
+ *
+ * @return {string}
+ */
+
+
+_mathAtom.default.MathAtom.prototype.toMathML = function (options) {
+  var SPECIAL_IDENTIFIERS = {
+    '\\exponentialE': '&#x02147;',
+    '\\imaginaryI': '&#x2148;',
+    '\\differentialD': '&#x2146;',
+    '\\capitalDifferentialD': '&#x2145;',
+    '\\alpha': '&#x03b1;',
+    '\\pi': '&#x03c0;',
+    '\\infty': '&#x221e;',
+    '\\forall': '&#x2200;',
+    '\\nexists': '&#x2204;',
+    '\\exists': '&#x2203;',
+    '\\hbar': "\u210F",
+    '\\cdotp': "\u22C5",
+    '\\ldots': "\u2026",
+    '\\cdots': "\u22EF",
+    '\\ddots': "\u22F1",
+    '\\vdots': "\u22EE",
+    '\\ldotp': "." // TODO: include all the 'textord' that are identifiers, not operators.
+
+  };
+  var MATH_VARIANTS = {
+    'cal': 'script',
+    'frak': 'fraktur',
+    'bb': 'double-struck',
+    'scr': 'script',
+    'cmtt': 'monospace',
+    'cmss': 'sans-serif'
+  };
+  var SPACING = {
+    '\\!': -3 / 18,
+    '\\ ': 6 / 18,
+    '\\,': 3 / 18,
+    '\\:': 4 / 18,
+    '\\;': 5 / 18,
+    '\\enspace': .5,
+    '\\quad': 1,
+    '\\qquad': 2,
+    '\\enskip': .5
+  };
+  var result = '';
+  var sep = '';
+  var col, row, i;
+  var underscript, overscript, body;
+  var variant = MATH_VARIANTS[this.fontFamily || this.font] || '';
+
+  if (variant) {
+    variant = ' mathvariant="' + variant + '"';
+  }
+
+  var command = this.latex ? this.latex.trim() : null;
+  var m;
+
+  switch (this.type) {
+    case 'group':
+    case 'root':
+      result = toMathML(this.body, 0, 0, options).mathML;
+      break;
+
+    case 'array':
+      if (this.lFence && this.lFence !== '.' || this.rFence && this.rFence !== '.') {
+        result += '<mrow>';
+
+        if (this.lFence && this.lFence !== '.') {
+          result += '<mo>' + (SPECIAL_OPERATORS[this.lFence] || this.lFence) + '</mo>';
+        }
+      }
+
+      result += '<mtable';
+
+      if (this.colFormat) {
+        result += ' columnalign="';
+
+        for (i = 0; i < this.colFormat.length; i++) {
+          if (this.colFormat[i].align) {
+            result += {
+              l: 'left',
+              c: 'center',
+              r: 'right'
+            }[this.colFormat[i].align] + ' ';
+          }
+        }
+
+        result += '"';
+      }
+
+      result += '>';
+
+      for (row = 0; row < this.array.length; row++) {
+        result += '<mtr>';
+
+        for (col = 0; col < this.array[row].length; col++) {
+          result += '<mtd>' + toMathML(this.array[row][col], 0, 0, options).mathML + '</mtd>';
+        }
+
+        result += '</mtr>';
+      }
+
+      result += '</mtable>';
+
+      if (this.lFence && this.lFence !== '.' || this.rFence && this.rFence !== '.') {
+        if (this.rFence && this.rFence !== '.') {
+          result += '<mo>' + (SPECIAL_OPERATORS[this.lFence] || this.rFence) + '</mo>';
+        }
+
+        result += '</mrow>';
+      }
+
+      break;
+
+    case 'genfrac':
+      if (this.leftDelim || this.rightDelim) {
+        result += '<mrow>';
+      }
+
+      if (this.leftDelim && this.leftDelim !== '.') {
+        result += '<mo' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[this.leftDelim] || this.leftDelim) + '</mo>';
+      }
+
+      if (this.hasBarLine) {
+        result += '<mfrac>';
+        result += toMathML(this.numer, 0, 0, options).mathML || '<mi>&nbsp;</mi>';
+        result += toMathML(this.denom, 0, 0, options).mathML || '<mi>&nbsp;</mi>';
+        result += '</mfrac>';
+      } else {
+        // No bar line, i.e. \choose, etc...
+        result += '<mtable' + makeID(this.id, options) + '>';
+        result += '<mtr>' + toMathML(this.numer, 0, 0, options).mathML + '</mtr>';
+        result += '<mtr>' + toMathML(this.denom, 0, 0, options).mathML + '</mtr>';
+        result += '</mtable>';
+      }
+
+      if (this.rightDelim && this.rightDelim !== '.') {
+        result += '<mo' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[this.rightDelim] || this.rightDelim) + '</mo>';
+      }
+
+      if (this.leftDelim || this.rightDelim) {
+        result += '</mrow>';
+      }
+
+      break;
+
+    case 'surd':
+      if (this.index) {
+        result += '<mroot' + makeID(this.id, options) + '>';
+        result += toMathML(this.body, 0, 0, options).mathML;
+        result += toMathML(this.index, 0, 0, options).mathML;
+        result += '</mroot>';
+      } else {
+        result += '<msqrt' + makeID(this.id, options) + '>';
+        result += toMathML(this.body, 0, 0, options).mathML;
+        result += '</msqrt>';
+      }
+
+      break;
+
+    case 'leftright':
+      // TODO: could add fence=true attribute
+      result = '<mrow>';
+
+      if (this.leftDelim && this.leftDelim !== '.') {
+        result += '<mo' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[this.leftDelim] || this.leftDelim) + '</mo>';
+      }
+
+      if (this.body) result += toMathML(this.body, 0, 0, options).mathML;
+
+      if (this.rightDelim && this.rightDelim !== '.') {
+        result += '<mo' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[this.rightDelim] || this.rightDelim) + '</mo>';
+      }
+
+      result += '</mrow>';
+      break;
+
+    case 'sizeddelim':
+    case 'delim':
+      result += '<mo separator="true"' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[this.delim] || this.delim) + '</mo>';
+      break;
+
+    case 'accent':
+      result += '<mover accent="true"' + makeID(this.id, options) + '>';
+      result += toMathML(this.body, 0, 0, options).mathML;
+      result += '<mo>' + (SPECIAL_OPERATORS[command] || this.accent) + '</mo>';
+      result += '</mover>';
+      break;
+
+    case 'line':
+    case 'overlap':
+      break;
+
+    case 'overunder':
+      overscript = this.overscript;
+      underscript = this.underscript;
+
+      if (overscript && underscript) {
+        body = this.body;
+      } else if (overscript) {
+        body = this.body;
+
+        if (this.body[0] && this.body[0].underscript) {
+          underscript = this.body[0].underscript;
+          body = this.body[0].body;
+        } else if (this.body[0] && this.body[0].type === 'first' && this.body[1] && this.body[1].underscript) {
+          underscript = this.body[1].underscript;
+          body = this.body[1].body;
+        }
+      } else if (underscript) {
+        body = this.body;
+
+        if (this.body[0] && this.body[0].overscript) {
+          overscript = this.body[0].overscript;
+          body = this.body[0].body;
+        } else if (this.body[0] && this.body[0].type === 'first' && this.body[1] && this.body[1].overscript) {
+          overscript = this.body[1].overscript;
+          body = this.body[1].body;
+        }
+      }
+
+      if (overscript && underscript) {
+        result += '<munderover' + variant + makeID(this.id, options) + '>' + toMathML(body, 0, 0, options).mathML;
+        result += toMathML(underscript, 0, 0, options).mathML;
+        result += toMathML(overscript, 0, 0, options).mathML;
+        result += '</munderover>';
+      } else if (overscript) {
+        result += '<mover' + variant + makeID(this.id, options) + '>' + toMathML(body, options).mathML;
+        result += toMathML(overscript, 0, 0, options).mathML;
+        result += '</mover>';
+      } else if (underscript) {
+        result += '<munder' + variant + makeID(this.id, options) + '>' + toMathML(body, options).mathML;
+        result += toMathML(underscript, 0, 0, options).mathML;
+        result += '</munder>';
+      }
+
+      break;
+
+    case 'mord':
+      result = SPECIAL_IDENTIFIERS[command] || command || (typeof this.body === 'string' ? this.body : '');
+      m = command ? command.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) : null;
+
+      if (m) {
+        // It's a \char command
+        result = '&#x' + m[1] + ';';
+      } else if (result.length > 0 && result.charAt(0) === '\\') {
+        // This is an identifier with no special handling. Use the
+        // Unicode value
+        if (typeof this.body === 'string' && this.body.charCodeAt(0) > 255) {
+          result = '&#x' + ('000000' + this.body.charCodeAt(0).toString(16)).substr(-4) + ';';
+        } else if (typeof this.body === 'string') {
+          result = this.body.charAt(0);
+        } else {
+          result = this.body;
+        }
+      }
+
+      result = '<mi' + variant + makeID(this.id, options) + '>' + xmlEscape(result) + '</mi>';
+      break;
+
+    case 'mbin':
+    case 'mrel':
+    case 'textord':
+    case 'minner':
+      if (command && SPECIAL_IDENTIFIERS[command]) {
+        // Some 'textord' are actually identifiers. Check them here.
+        result = '<mi' + makeID(this.id, options) + '>' + SPECIAL_IDENTIFIERS[command] + '</mi>';
+      } else if (command && SPECIAL_OPERATORS[command]) {
+        result = '<mo' + makeID(this.id, options) + '>' + SPECIAL_OPERATORS[command] + '</mo>';
+      } else {
+        result = toMo(this, options);
+      }
+
+      break;
+
+    case 'mpunct':
+      result = '<mo separator="true"' + makeID(this.id, options) + '>' + (SPECIAL_OPERATORS[command] || command) + '</mo>';
+      break;
+
+    case 'mop':
+      if (this.body !== "\u200B") {
+        // Not ZERO-WIDTH
+        result = '<mo' + makeID(this.id, options) + '>';
+
+        if (command === '\\operatorname') {
+          result += this.body;
+        } else {
+          result += command || this.body;
+        }
+
+        result += '</mo>';
+      }
+
+      break;
+
+    case 'mathstyle':
+      // TODO: mathstyle is a switch. Need to figure out its scope to properly wrap it around a <mstyle> tag
+      // if (this.mathstyle === 'displaystyle') {
+      //     result += '<mstyle displaystyle="true">';
+      //     result += '</mstyle>';
+      // } else {
+      //     result += '<mstyle displaystyle="false">';
+      //     result += '</mstyle>';
+      // };
+      break;
+
+    case 'box':
+      result = '<menclose notation="box"';
+
+      if (this.backgroundcolor) {
+        result += ' mathbackground="' + _color.default.stringToColor(this.backgroundcolor) + '"';
+      }
+
+      result += makeID(this.id, options) + '>' + toMathML(this.body, 0, 0, options).mathML + '</menclose>';
+      break;
+
+    case 'spacing':
+      result += '<mspace width="' + (SPACING[command] || 0) + 'em"/>';
+      break;
+
+    case 'enclose':
+      result = '<menclose notation="';
+
+      for (var notation in this.notation) {
+        if (this.notation.hasOwnProperty(notation) && this.notation[notation]) {
+          result += sep + notation;
+          sep = ' ';
+        }
+      }
+
+      result += makeID(this.id, options) + '">' + toMathML(this.body, 0, 0, options).mathML + '</menclose>';
+      break;
+
+    case 'space':
+      result += '&nbsp;';
+      break;
+  }
+
+  return result;
+};
+
+_mathAtom.default.toMathML = function (atoms, options) {
+  return toMathML(atoms, 0, 0, options).mathML;
+}; // Export the public interface for this module
+
+
+var _default = {};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/addons/outputSpokenText.js b/dist/addons/outputSpokenText.js
new file mode 100644
index 000000000..50e1248ed
--- /dev/null
+++ b/dist/addons/outputSpokenText.js
@@ -0,0 +1,692 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
+
+var _editorPopover = _interopRequireDefault(require("../editor/editor-popover.js"));
+
+require("../core/definitions.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+// Markup
+// Two common flavor of markups: SSML and 'mac'. The latter is only available
+// when using the native TTS synthesizer on Mac OS.
+// Use SSML in the production rules below. The markup will either be striped
+// off or replaced with the 'mac' markup as necessary.
+//
+// SSML                                             Mac
+// ----                                             ----
+// <emphasis>WORD</emphasis>                        [[emph +]]WORD
+// <break time="150ms"/>                            [[slc 150]]
+// <say-as interpret-as="character">A</say-as>      [[char LTRL] A [[char NORM]]
+// https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/SpeechSynthesisProgrammingGuide/FineTuning/FineTuning.html#//apple_ref/doc/uid/TP40004365-CH5-SW3
+// https://pdfs.semanticscholar.org/8887/25b82b8dbb45dd4dd69b36a65f092864adb0.pdf
+// "<audio src='non_existing_file.au'>File could not be played.</audio>"
+// "I am now <prosody rate='+0.06'>speaking 6% faster.</prosody>"
+var PRONUNCIATION = {
+  '\\alpha': 'alpha ',
+  '\\mu': 'mew ',
+  '\\sigma': 'sigma ',
+  '\\pi': 'pie ',
+  '\\imaginaryI': 'eye ',
+  '\\sum': 'Summation ',
+  '\\prod': 'Product ',
+  '+': 'plus ',
+  '-': 'minus ',
+  ';': '<break time="150ms"/> semi-colon <break time="150ms"/>',
+  ',': '<break time="150ms"/> comma  <break time="150ms"/>',
+  '|': '<break time="150ms"/>Vertical bar<break time="150ms"/>',
+  '(': '<break time="150ms"/>Open paren. <break time="150ms"/>',
+  ')': '<break time="150ms"/> Close paren. <break time="150ms"/>',
+  '=': 'equals ',
+  '<': 'is less than ',
+  '\\lt': 'is less than ',
+  '<=': 'is less than or equal to ',
+  '\\le': 'is less than or equal to ',
+  '\\gt': 'is greater than ',
+  '>': 'is greater than ',
+  '\\ge': 'is greater than or equal to ',
+  '\\geq': 'is greater than or equal to ',
+  '\\leq': 'is less than or equal to ',
+  '!': 'factorial ',
+  '\\sin': 'sine ',
+  '\\cos': 'cosine ',
+  "\u200B": '',
+  "\u2212": 'minus ',
+  ':': '<break time="150ms"/> such that <break time="200ms"/> ',
+  '\\colon': '<break time="150ms"/> such that <break time="200ms"/> ',
+  '\\hbar': 'etch bar ',
+  '\\iff': '<break time="200ms"/>if, and only if, <break time="200ms"/>',
+  '\\Longleftrightarrow': '<break time="200ms"/>if, and only if, <break time="200ms"/>',
+  '\\land': 'and ',
+  '\\lor': 'or ',
+  '\\neg': 'not ',
+  '\\div': 'divided by ',
+  '\\forall': 'for all ',
+  '\\exists': 'there exists ',
+  '\\nexists': 'there does not exists ',
+  '\\in': 'element of ',
+  '\\N': 'the set <break time="150ms"/><say-as interpret-as="character">n</say-as>',
+  '\\C': 'the set <break time="150ms"/><say-as interpret-as="character">c</say-as>',
+  '\\Z': 'the set <break time="150ms"/><say-as interpret-as="character">z</say-as>',
+  '\\Q': 'the set <break time="150ms"/><say-as interpret-as="character">q</say-as>',
+  '\\infty': 'infinity ',
+  '\\nabla': 'nabla ',
+  '\\partial': 'partial derivative of ',
+  '\\cdots': 'dot dot dot ',
+  '\\Rightarrow': 'implies ',
+  '\\lbrace': '<break time="150ms"/>open brace<break time="150ms"/>',
+  '\\{': '<break time="150ms"/>open brace<break time="150ms"/>',
+  '\\rbrace': '<break time="150ms"/>close brace<break time="150ms"/>',
+  '\\}': '<break time="150ms"/>close brace<break time="150ms"/>',
+  '\\langle': '<break time="150ms"/>left angle bracket<break time="150ms"/>',
+  '\\rangle': '<break time="150ms"/>right angle bracket<break time="150ms"/>',
+  '\\lfloor': '<break time="150ms"/>open floor<break time="150ms"/>',
+  '\\rfloor': '<break time="150ms"/>close floor<break time="150ms"/>',
+  '\\lceil': '<break time="150ms"/>open ceiling<break time="150ms"/>',
+  '\\rceil': '<break time="150ms"/>close ceiling<break time="150ms"/>',
+  '\\vert': '<break time="150ms"/>vertical bar<break time="150ms"/>',
+  '\\mvert': '<break time="150ms"/>divides<break time="150ms"/>',
+  '\\lvert': '<break time="150ms"/>left vertical bar<break time="150ms"/>',
+  '\\rvert': '<break time="150ms"/>right vertical bar<break time="150ms"/>',
+  // '\\lbrack':		'left bracket',
+  // '\\rbrack':		'right bracket',
+  '\\lbrack': '<break time="150ms"/> open square bracket <break time="150ms"/>',
+  '\\rbrack': '<break time="150ms"/> close square bracket <break time="150ms"/>',
+  // need to add code to detect singluar/plural. Until then spoken as plural since that is vastly more common
+  // note: need to worry about intervening &InvisibleTimes;.
+  // note: need to also do this when in numerator of fraction and number preceeds fraction
+  // note: need to do this for <msup>
+  'mm': 'millimeters',
+  'cm': 'centimeters',
+  'km': 'kilometers',
+  'kg': 'kilograms'
+};
+
+function getSpokenName(latex) {
+  var result = _editorPopover.default.NOTES[latex];
+
+  if (!result && latex.charAt(0) === '\\') {
+    result = ' ' + latex.replace('\\', '') + ' ';
+  } // If we got more than one result (from NOTES),
+  // pick the first one.
+
+
+  if (Array.isArray(result)) {
+    result = result[0];
+  }
+
+  return result;
+}
+
+function platform(p) {
+  var result = 'other';
+
+  if (navigator && navigator.platform && navigator.userAgent) {
+    if (/^(mac)/i.test(navigator.platform)) {
+      result = 'mac';
+    } else if (/^(win)/i.test(navigator.platform)) {
+      result = 'win';
+    } else if (/(android)/i.test(navigator.userAgent)) {
+      result = 'android';
+    } else if (/(iphone)/i.test(navigator.userAgent) || /(ipod)/i.test(navigator.userAgent) || /(ipad)/i.test(navigator.userAgent)) {
+      result = 'ios';
+    } else if (/\bCrOS\b/i.test(navigator.userAgent)) {
+      result = 'chromeos';
+    }
+  }
+
+  return result === p ? p : '!' + p;
+}
+
+function isAtomic(mathlist) {
+  var count = 0;
+
+  if (mathlist && Array.isArray(mathlist)) {
+    var _iteratorNormalCompletion = true;
+    var _didIteratorError = false;
+    var _iteratorError = undefined;
+
+    try {
+      for (var _iterator = mathlist[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+        var atom = _step.value;
+
+        if (atom.type !== 'first') {
+          count += 1;
+        }
+      }
+    } catch (err) {
+      _didIteratorError = true;
+      _iteratorError = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion && _iterator.return != null) {
+          _iterator.return();
+        }
+      } finally {
+        if (_didIteratorError) {
+          throw _iteratorError;
+        }
+      }
+    }
+  }
+
+  return count === 1;
+}
+
+function atomicID(mathlist) {
+  if (mathlist && Array.isArray(mathlist)) {
+    var _iteratorNormalCompletion2 = true;
+    var _didIteratorError2 = false;
+    var _iteratorError2 = undefined;
+
+    try {
+      for (var _iterator2 = mathlist[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+        var atom = _step2.value;
+
+        if (atom.type !== 'first' && atom.id) {
+          return atom.id.toString();
+        }
+      }
+    } catch (err) {
+      _didIteratorError2 = true;
+      _iteratorError2 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+          _iterator2.return();
+        }
+      } finally {
+        if (_didIteratorError2) {
+          throw _iteratorError2;
+        }
+      }
+    }
+  }
+
+  return '';
+}
+
+function atomicValue(mathlist) {
+  var result = '';
+
+  if (mathlist && Array.isArray(mathlist)) {
+    var _iteratorNormalCompletion3 = true;
+    var _didIteratorError3 = false;
+    var _iteratorError3 = undefined;
+
+    try {
+      for (var _iterator3 = mathlist[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+        var atom = _step3.value;
+
+        if (atom.type !== 'first' && typeof atom.body === 'string') {
+          result += atom.body;
+        }
+      }
+    } catch (err) {
+      _didIteratorError3 = true;
+      _iteratorError3 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+          _iterator3.return();
+        }
+      } finally {
+        if (_didIteratorError3) {
+          throw _iteratorError3;
+        }
+      }
+    }
+  }
+
+  return result;
+}
+
+_mathAtom.default.toSpeakableFragment = function (atom, options) {
+  function letter(c) {
+    var result = '';
+
+    if (!options.textToSpeechMarkup) {
+      if (/[a-z]/.test(c)) {
+        result += " '" + c.toUpperCase() + "'";
+      } else if (/[A-Z]/.test(c)) {
+        result += " 'capital " + c.toUpperCase() + "'";
+      } else {
+        result += c;
+      }
+    } else {
+      if (/[a-z]/.test(c)) {
+        result += ' <say-as interpret-as="character">' + c + '</say-as>';
+      } else if (/[A-Z]/.test(c)) {
+        result += 'capital ' + c.toLowerCase() + '';
+      } else {
+        result += c;
+      }
+    }
+
+    return result;
+  }
+
+  function emph(s) {
+    return '<emphasis>' + s + '</emphasis>';
+  }
+
+  if (!atom) return '';
+  var result = '';
+
+  if (atom.id && options.speechMode === 'math') {
+    result += '<mark name="' + atom.id.toString() + '"/>';
+  }
+
+  if (Array.isArray(atom)) {
+    var isInDigitRun = false; // need to group sequence of digits
+
+    for (var i = 0; i < atom.length; i++) {
+      if (i < atom.length - 2 && atom[i].type === 'mopen' && atom[i + 2].type === 'mclose' && atom[i + 1].type === 'mord') {
+        result += ' of ';
+        result += emph(_mathAtom.default.toSpeakableFragment(atom[i + 1], options));
+        i += 2; // '.' and ',' should only be allowed if prev/next entry is a digit
+        // However, if that isn't the case, this still works because 'toSpeakableFragment' is called in either case.
+      } else if (atom[i].mode === 'text') {
+        result += atom[i].body ? atom[i].body : ' ';
+      } else if (atom[i].type === 'mord' && /[0123456789,.]/.test(atom[i].body)) {
+        if (isInDigitRun) {
+          result += atom[i].body;
+        } else {
+          isInDigitRun = true;
+          result += _mathAtom.default.toSpeakableFragment(atom[i], options);
+        }
+      } else {
+        isInDigitRun = false;
+        result += _mathAtom.default.toSpeakableFragment(atom[i], options);
+      }
+    }
+  } else {
+    var numer = '';
+    var denom = '';
+    var body = '';
+    var supsubHandled = false;
+
+    switch (atom.type) {
+      case 'group':
+      case 'root':
+        result += _mathAtom.default.toSpeakableFragment(atom.body, options);
+        break;
+
+      case 'genfrac':
+        numer = _mathAtom.default.toSpeakableFragment(atom.numer, options);
+        denom = _mathAtom.default.toSpeakableFragment(atom.denom, options);
+
+        if (isAtomic(atom.numer) && isAtomic(atom.denom)) {
+          var COMMON_FRACTIONS = {
+            '1/2': ' half ',
+            '1/3': ' one third ',
+            '2/3': ' two third',
+            '1/4': ' one quarter ',
+            '3/4': ' three quarter ',
+            '1/5': ' one fifth ',
+            '2/5': ' two fifths ',
+            '3/5': ' three fifths ',
+            '4/5': ' four fifths ',
+            '1/6': ' one sixth ',
+            '5/6': ' five sixths ',
+            '1/8': ' one eight ',
+            '3/8': ' three eights ',
+            '5/8': ' five eights ',
+            '7/8': ' seven eights ',
+            '1/9': ' one ninth ',
+            '2/9': ' two ninths ',
+            '4/9': ' four ninths ',
+            '5/9': ' five ninths ',
+            '7/9': ' seven ninths ',
+            '8/9': ' eight ninths ' // '1/10':     ' one tenth ',
+            // '1/12':     ' one twelfth ',
+            // 'x/2':     ' <say-as interpret-as="character">X</say-as> over 2',
+
+          };
+          var commonFraction = COMMON_FRACTIONS[atomicValue(atom.numer) + '/' + atomicValue(atom.denom)];
+
+          if (commonFraction) {
+            result = commonFraction;
+          } else {
+            result += numer + ' over ' + denom;
+          }
+        } else {
+          result += ' the fraction <break time="150ms"/>' + numer + ', over <break time="150ms"/>' + denom + '.<break time="150ms"/> End fraction.<break time="150ms"/>';
+        }
+
+        break;
+
+      case 'surd':
+        body = _mathAtom.default.toSpeakableFragment(atom.body, options);
+
+        if (!atom.index) {
+          if (isAtomic(atom.body)) {
+            result += ' the square root of ' + body + ' , ';
+          } else {
+            result += ' the square root of <break time="200ms"/>' + body + '. <break time="200ms"/> End square root';
+          }
+        } else {
+          var index = _mathAtom.default.toSpeakableFragment(atom.index, options);
+
+          index = index.trim();
+          var index2 = index.replace(/<mark([^/]*)\/>/g, '');
+
+          if (index2 === '3') {
+            result += ' the cube root of <break time="200ms"/>' + body + '. <break time="200ms"/> End cube root';
+          } else if (index2 === 'n') {
+            result += ' the nth root of <break time="200ms"/>' + body + '. <break time="200ms"/> End root';
+          } else {
+            result += ' the root with index: <break time="200ms"/>' + index + ', of <break time="200ms"/>' + body + '. <break time="200ms"/> End root';
+          }
+        }
+
+        break;
+
+      case 'accent':
+        break;
+
+      case 'leftright':
+        result += PRONUNCIATION[atom.leftDelim] || atom.leftDelim;
+        result += _mathAtom.default.toSpeakableFragment(atom.body, options);
+        result += PRONUNCIATION[atom.rightDelim] || atom.rightDelim;
+        break;
+
+      case 'line':
+        // @todo
+        break;
+
+      case 'rule':
+        // @todo
+        break;
+
+      case 'overunder':
+        // @todo
+        break;
+
+      case 'overlap':
+        // @todo
+        break;
+
+      case 'placeholder':
+        result += 'placeholder ' + atom.body;
+        break;
+
+      case 'delim':
+      case 'sizeddelim':
+      case 'mord':
+      case 'minner':
+      case 'mbin':
+      case 'mrel':
+      case 'mpunct':
+      case 'mopen':
+      case 'mclose':
+      case 'textord':
+        {
+          var command = atom.latex ? atom.latex.trim() : '';
+
+          if (command === '\\mathbin' || command === '\\mathrel' || command === '\\mathopen' || command === '\\mathclose' || command === '\\mathpunct' || command === '\\mathord' || command === '\\mathinner') {
+            result = _mathAtom.default.toSpeakableFragment(atom.body, options);
+            break;
+          }
+
+          var atomValue = atom.body;
+          var latexValue = atom.latex;
+
+          if (atom.type === 'delim' || atom.type === 'sizeddelim') {
+            atomValue = latexValue = atom.delim;
+          }
+
+          if (options.speechMode === 'text') {
+            result += atomValue;
+          } else {
+            if (atom.type === 'mbin') {
+              result += '<break time="150ms"/>';
+            }
+
+            if (atomValue) {
+              var value = PRONUNCIATION[atomValue] || (latexValue ? PRONUNCIATION[latexValue.trim()] : '');
+
+              if (value) {
+                result += ' ' + value;
+              } else {
+                var spokenName = latexValue ? getSpokenName(latexValue.trim()) : '';
+                result += spokenName ? spokenName : letter(atomValue);
+              }
+            } else {
+              result += _mathAtom.default.toSpeakableFragment(atom.body, options);
+            }
+
+            if (atom.type === 'mbin') {
+              result += '<break time="150ms"/>';
+            }
+          }
+
+          break;
+        }
+
+      case 'mop':
+        // @todo
+        if (atom.body !== "\u200B") {
+          // Not ZERO-WIDTH
+          var trimLatex = atom.latex ? atom.latex.trim() : '';
+
+          if (trimLatex === '\\sum') {
+            if (atom.superscript && atom.subscript) {
+              var sup = _mathAtom.default.toSpeakableFragment(atom.superscript, options);
+
+              sup = sup.trim();
+
+              var sub = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
+
+              sub = sub.trim();
+              result += ' the summation from <break time="200ms"/>' + sub + '<break time="200ms"/> to  <break time="200ms"/>' + sup + '<break time="200ms"/> of <break time="150ms"/>';
+              supsubHandled = true;
+            } else if (atom.subscript) {
+              var _sub = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
+
+              _sub = _sub.trim();
+              result += ' the summation from <break time="200ms"/>' + _sub + '<break time="200ms"/> of <break time="150ms"/>';
+              supsubHandled = true;
+            } else {
+              result += ' the summation of';
+            }
+          } else if (trimLatex === '\\prod') {
+            if (atom.superscript && atom.subscript) {
+              var _sup = _mathAtom.default.toSpeakableFragment(atom.superscript, options);
+
+              _sup = _sup.trim();
+
+              var _sub2 = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
+
+              _sub2 = _sub2.trim();
+              result += ' the product from <break time="200ms"/>' + _sub2 + '<break time="200ms"/> to <break time="200ms"/>' + _sup + '<break time="200ms"/> of <break time="150ms"/>';
+              supsubHandled = true;
+            } else if (atom.subscript) {
+              var _sub3 = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
+
+              _sub3 = _sub3.trim();
+              result += ' the product from <break time="200ms"/>' + _sub3 + '<break time="200ms"/> of <break time="150ms"/>';
+              supsubHandled = true;
+            } else {
+              result += ' the product  of ';
+            }
+          } else if (trimLatex === '\\int') {
+            if (atom.superscript && atom.subscript) {
+              var _sup2 = _mathAtom.default.toSpeakableFragment(atom.superscript, options);
+
+              _sup2 = _sup2.trim();
+
+              var _sub4 = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
+
+              _sub4 = _sub4.trim();
+              result += ' the integral from <break time="200ms"/>' + emph(_sub4) + '<break time="200ms"/> to <break time="200ms"/>' + emph(_sup2) + ' <break time="200ms"/> of ';
+              supsubHandled = true;
+            } else {
+              result += ' the integral of <break time="200ms"/> ';
+            }
+          } else if (typeof atom.body === 'string') {
+            var _value = PRONUNCIATION[atom.body] || PRONUNCIATION[atom.latex.trim()];
+
+            if (_value) {
+              result += _value;
+            } else {
+              result += ' ' + atom.body;
+            }
+          } else if (atom.latex && atom.latex.length > 0) {
+            if (atom.latex[0] === '\\') {
+              result += ' ' + atom.latex.substr(1);
+            } else {
+              result += ' ' + atom.latex;
+            }
+          }
+        }
+
+        break;
+
+      case 'enclose':
+        body = _mathAtom.default.toSpeakableFragment(atom.body, options);
+
+        if (isAtomic(atom.body)) {
+          result += ' crossed out ' + body + ' , ';
+        } else {
+          result += ' crossed out ' + body + '. End cross out';
+        }
+
+        break;
+
+      case 'space':
+      case 'spacing':
+      case 'mathstyle':
+      case 'box':
+        // @todo
+        break;
+    }
+
+    if (!supsubHandled && atom.superscript) {
+      var _sup3 = _mathAtom.default.toSpeakableFragment(atom.superscript, options);
+
+      _sup3 = _sup3.trim();
+
+      var sup2 = _sup3.replace(/<[^>]*>/g, '');
+
+      if (isAtomic(atom.superscript)) {
+        if (options.speechMode === 'math') {
+          var id = atomicID(atom.superscript);
+
+          if (id) {
+            result += '<mark name="' + id + '"/>';
+          }
+        }
+
+        if (sup2 === "\u2032") {
+          result += ' prime ';
+        } else if (sup2 === '2') {
+          result += ' squared ';
+        } else if (sup2 === '3') {
+          result += ' cubed ';
+        } else if (isNaN(parseInt(sup2))) {
+          result += ' to the ' + _sup3 + '; ';
+        } else {
+          result += ' to the <say-as interpret-as="ordinal">' + sup2 + '</say-as> power; ';
+        }
+      } else {
+        if (isNaN(parseInt(sup2))) {
+          result += ' raised to the ' + _sup3 + '; ';
+        } else {
+          result += ' raised to the <say-as interpret-as="ordinal">' + sup2 + '</say-as> power; ';
+        }
+      }
+    }
+
+    if (!supsubHandled && atom.subscript) {
+      var _sub5 = _mathAtom.default.toSpeakableFragment(atom.subscript, options);
+
+      _sub5 = _sub5.trim();
+
+      if (isAtomic(atom.subscript)) {
+        result += ' sub ' + _sub5;
+      } else {
+        result += ' subscript ' + _sub5 + '. End subscript. ';
+      }
+    }
+  }
+
+  return result;
+};
+/**
+ * @param {MathAtom[]}  [atoms] The atoms to represent as speakable text.
+ * If omitted, `this` is used.
+ * @param {Object.<string, any>} [options]
+*/
+
+
+_mathAtom.default.toSpeakableText = function (atoms, options) {
+  if (!options) {
+    options = {
+      textToSpeechMarkup: '',
+      // no markup
+      textToSpeechRules: 'mathlive'
+    };
+  }
+
+  options.speechMode = 'math';
+
+  if (window.sre && options.textToSpeechRules === 'sre') {
+    options.generateID = true;
+
+    var mathML = _mathAtom.default.toMathML(atoms, options);
+
+    if (mathML) {
+      if (options.textToSpeechMarkup) {
+        options.textToSpeechRulesOptions = options.textToSpeechRulesOptions || {};
+        options.textToSpeechRulesOptions.markup = options.textToSpeechMarkup;
+
+        if (options.textToSpeechRulesOptions.markup === 'ssml') {
+          options.textToSpeechRulesOptions.markup = 'ssml_step';
+        }
+
+        options.textToSpeechRulesOptions.rate = options.speechEngineRate;
+      }
+
+      if (options.textToSpeechRulesOptions) {
+        window.sre.System.getInstance().setupEngine(options.textToSpeechRulesOptions);
+      }
+
+      return window.sre.System.getInstance().toSpeech(mathML);
+    }
+
+    return ''; // return window.sre.toSpeech(MathAtom.toMathML(atoms));
+  }
+
+  var result = _mathAtom.default.toSpeakableFragment(atoms, options);
+
+  if (options.textToSpeechMarkup === 'ssml') {
+    var prosody = '';
+
+    if (options.speechEngineRate) {
+      prosody = '<prosody rate="' + options.speechEngineRate + '">';
+    }
+
+    result = "<?xml version=\"1.0\"?><speak version=\"1.1\" xmlns=\"http://www.w3.org/2001/10/synthesis\" xml:lang=\"en-US\">" + '<amazon:auto-breaths>' + prosody + '<p><s>' + result + '</s></p>' + (prosody ? '</prosody>' : '') + '</amazon:auto-breaths>' + '</speak>';
+  } else if (options.textToSpeechMarkup === 'mac' && platform('mac') === 'mac') {
+    // Convert SSML to Mac markup
+    result = result.replace(/<mark([^/]*)\/>/g, '').replace(/<emphasis>/g, '[[emph+]]').replace(/<\/emphasis>/g, '').replace(/<break time="([0-9]*)ms"\/>/g, '[[slc $1]]').replace(/<say-as[^>]*>/g, '').replace(/<\/say-as>/g, '');
+  } else {
+    // If no markup was requested, or 'mac' markup, but we're not on a mac,
+    // remove any that we may have
+    // Strip out the SSML markup
+    result = result.replace(/<[^>]*>/g, '').replace(/\s{2,}/g, ' ');
+  }
+
+  return result;
+}; // Export the public interface for this module
+
+
+var _default = {};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/color.js b/dist/core/color.js
new file mode 100644
index 000000000..5662be60d
--- /dev/null
+++ b/dist/core/color.js
@@ -0,0 +1,472 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+/**
+ * This module contains some color dictionaries and algorithms to 
+ * parse a string into a hex RGB color value.s
+ * @summary   Parsing of color strings.
+ * @module core/color
+ * @private
+ */
+
+/*
+{\color{apricot}\blacksquare}{\color{aquamarine}\blacksquare}{\color{bittersweet}\blacksquare}{\color{black}\blacksquare}{\color{blue}\blacksquare}{\color{blueGreen}\blacksquare}{\color{blueviolet}\blacksquare}{\color{brickred}\blacksquare}{\color{brown}\blacksquare}{\color{burntorange}\blacksquare}{\color{cadetblue}\blacksquare}{\color{carnationpink}\blacksquare}{\color{cerulean}\blacksquare}{\color{cornflowerblue}\blacksquare}{\color{cyan}\blacksquare}{\color{dandelion}\blacksquare}{\color{darkorchid}\blacksquare}{\color{emerald}\blacksquare}{\color{forestgreen}\blacksquare}{\color{fuchsia}\blacksquare}{\color{goldenrod}\blacksquare}{\color{gray}\blacksquare}{\color{green}\blacksquare}{\color{greenyellow}\blacksquare}{\color{junglegreen}\blacksquare}{\color{lavender}\blacksquare}{\color{limegreen}\blacksquare}{\color{magenta}\blacksquare}{\color{mahogany}\blacksquare}{\color{maroon}\blacksquare}{\color{melon}\blacksquare}{\color{midnightblue}\blacksquare}{\color{mulberry}\blacksquare}{\color{navyblue}\blacksquare}{\color{olivegreen}\blacksquare}{\color{orange}\blacksquare}{\color{orangered}\blacksquare}{\color{orchid}\blacksquare}{\color{peach}\blacksquare}{\color{periwinkle}\blacksquare}{\color{pinegreen}\blacksquare}{\color{plum}\blacksquare}{\color{processblue}\blacksquare}{\color{purple}\blacksquare}{\color{rawsienna}\blacksquare}{\color{red}\blacksquare}{\color{redorange}\blacksquare}{\color{redviolet}\blacksquare}{\color{rhodamine}\blacksquare}{\color{royalblue}\blacksquare}{\color{royalpurple}\blacksquare}{\color{rubinered}\blacksquare}{\color{salmon}\blacksquare}{\color{seagreen}\blacksquare}{\color{sepia}\blacksquare}{\color{skyblue}\blacksquare}{\color{springgreen}\blacksquare}{\color{tan}\blacksquare}{\color{tealblue}\blacksquare}{\color{thistle}\blacksquare}{\color{turquoise}\blacksquare}{\color{violet}\blacksquare}{\color{violetred}\blacksquare}{\color{white}\blacksquare}{\color{wildstrawberry}\blacksquare}{\color{yellow}\blacksquare}{\color{yellowgreen}\blacksquare}{\color{yelloworange}\blacksquare}
+*/
+
+/**
+ * First 10 predefined colors used for plotting by Mathematica.
+ * 
+ * Also known as _indexed color scheme #97_.
+ * @constant
+ * @type {Object.<string, string>}
+ * @memberof module:color
+ */
+var MATHEMATICA_COLORS = {
+  'm0': '#3f3d99',
+  // strong blue
+  'm1': '#993d71',
+  // strong cerise
+  'm2': '#998b3d',
+  // strong gold
+  'm3': '#3d9956',
+  // malachite green
+  'm4': '#3d5a99',
+  // strong cobalt blue
+  'm5': '#993d90',
+  // strong orchid
+  'm6': '#996d3d',
+  // strong orange
+  'm7': '#43993d',
+  // strong sap green
+  'm8': '#3d7999',
+  // cornflower blue
+  'm9': '#843d99' // mulberry
+  // ColorData97 (Mathematica standard lines)
+  // rgb(0.368417, 0.506779, 0.709798),       #5e81b5
+  // rgb(0.880722, 0.611041, 0.142051),
+  // rgb(0.560181, 0.691569, 0.194885),
+  // rgb(0.922526, 0.385626, 0.209179),
+  // rgb(0.528488, 0.470624, 0.701351),
+  // rgb(0.772079, 0.431554, 0.102387),
+  // rgb(0.363898, 0.618501, 0.782349),
+  // rgb(1, 0.75, 0),
+  // rgb(0.647624, 0.37816, 0.614037),
+  // rgb(0.571589, 0.586483, 0.),
+  // rgb(0.915, 0.3325, 0.2125),
+  // rgb(0.40082222609352647, 0.5220066643438841, 0.85),
+  // rgb(0.9728288904374106, 0.621644452187053, 0.07336199581899142),
+  // rgb(0.736782672705901, 0.358, 0.5030266573755369),
+  // rgb(0.28026441037696703, 0.715, 0.4292089322474965)
+  // MathLab colors
+  // '#0072bd' // [0, 0.4470, 0.7410]             blue
+  // '#d95319' // [0.8500, 0.3250, 0.0980]        orange
+  // '#edb120', // [0.9290, 0.6940, 0.1250]       yellow
+  // '#7e2f8e', // [0.4940, 0.1840, 0.5560]       purple
+  // '#77ac30', // [0.4660, 0.6740, 0.1880]       green
+  // '#4dbeee', // [0.3010, 0.7450, 0.9330]       cyan
+  // '#a2142f' // [0.6350, 0.0780, 0.1840]	    dark red
+
+  /* Area colors are most appropriate to color a large area */
+
+};
+var AREA_COLORS = ['#d35d60', // red
+'#7293cb', // cobalt blue
+'#e1974d', // orange
+'#84bb5d', // pistachio
+'#9066a7', // purple
+'#aD6a58', // vermilion
+'#f5a4ce', // pale rose
+'#fff590', // pale gold
+'#212121', // Black
+'#818787', // dark grey
+'#d4d5d2', // light grey
+'#ffffff' // white
+];
+/* Line colors are most appropriate to color as a stroke color */
+
+var LINE_COLORS = ['#cc2428', // red
+'#3769b1', // cobalt blue
+'#da7e30', // orange
+'#409852', // malachite green
+'#6b4c9a', // blue violet
+'#922426', // red
+'#e7298a', // brilliant rose
+'#ffe907', // vivid gold
+'#000000', '#525055', '#adafaa', '#ffffff'];
+/** 
+ * 68 colors (+ white) known to dvips used in LaTeX.
+ * 
+ * The color names are based on the names of the _Crayola Crayon_ box of 
+ * 64 crayons.
+ * 
+ * See:
+ * - {@link http://mirror.jmu.edu/pub/CTAN/systems/knuth/local/lib/colordvi.tex|ColorDVI.tex}
+ * - {@link https://en.wikibooks.org/w/index.php?title=LaTeX/Colors|Wikibooks:LaTeX/Colors}
+ * @constant NAMED_COLORS
+ * @memberof module:color
+ * @type {Object.<string, string>}
+ */
+
+var NAMED_COLORS = {
+  'apricot': '#FBB982',
+  'aquamarine': '#00B5BE',
+  'bittersweet': '#C04F17',
+  'black': '#221E1F',
+  // Indeed.
+  'blue': '#2D2F92',
+  'bluegreen': '#00B3B8',
+  'blueviolet': '#473992',
+  'brickred': '#B6321C',
+  'brown': '#792500',
+  'burntorange': '#F7921D',
+  'cadetblue': '#74729A',
+  'carnationpink': '#F282B4',
+  'cerulean': '#00A2E3',
+  'cornflowerblue': '#41B0E4',
+  'cyan': '#00AEEF',
+  'dandelion': '#FDBC42',
+  'darkorchid': '#A4538A',
+  'emerald': '#00A99D',
+  'forestgreen': '#009B55',
+  'fuchsia': '#8C368C',
+  'goldenrod': '#FFDF42',
+  'gray': '#949698',
+  'green': '#00A64F',
+  'greenyellow': '#DFE674',
+  'junglegreen': '#00A99A',
+  'lavender': '#F49EC4',
+  'limegreen': '#8DC73E',
+  'magenta': '#EC008C',
+  'mahogany': '#A9341F',
+  'maroon': '#AF3235',
+  'melon': '#F89E7B',
+  'midnightblue': '#006795',
+  'mulberry': '#A93C93',
+  'navyblue': '#006EB8',
+  'olivegreen': '#3C8031',
+  'orange': '#F58137',
+  'orangered': '#ED135A',
+  'orchid': '#AF72B0',
+  'peach': '#F7965A',
+  'periwinkle': '#7977B8',
+  'pinegreen': '#008B72',
+  'plum': '#92268F',
+  'processblue': '#00B0F0',
+  'purple': '#99479B',
+  'rawsienna': '#974006',
+  'red': '#ED1B23',
+  'redorange': '#F26035',
+  'redviolet': '#A1246B',
+  'rhodamine': '#EF559F',
+  'royalblue': '#0071BC',
+  'royalpurple': '#613F99',
+  'rubinered': '#ED017D',
+  'salmon': '#F69289',
+  'seagreen': '#3FBC9D',
+  'sepia': '#671800',
+  'skyblue': '#46C5DD',
+  'springgreen': '#C6DC67',
+  'tan': '#DA9D76',
+  'tealblue': '#00AEB3',
+  'thistle': '#D883B7',
+  'turquoise': '#00B4CE',
+  'violet': '#58429B',
+  'violetred': '#EF58A0',
+  'white': '#FFFFFF',
+  'wildstrawberry': '#EE2967',
+  'yellow': '#FFF200',
+  'yellowgreen': '#98CC70',
+  'yelloworange': '#FAA21A'
+}; // Other color lists: SVG colors, x11 colors
+
+/*
+aliceblue	rgb(240, 248, 255)
+antiquewhite	rgb(250, 235, 215)
+aqua	rgb( 0, 255, 255)
+aquamarine	rgb(127, 255, 212)
+azure	rgb(240, 255, 255)
+beige	rgb(245, 245, 220)
+bisque	rgb(255, 228, 196)
+black	rgb( 0, 0, 0)
+blanchedalmond	rgb(255, 235, 205)
+blue	rgb( 0, 0, 255)
+blueviolet	rgb(138, 43, 226)
+brown	rgb(165, 42, 42)
+burlywood	rgb(222, 184, 135)
+cadetblue	rgb( 95, 158, 160)
+chartreuse	rgb(127, 255, 0)
+chocolate	rgb(210, 105, 30)
+coral	rgb(255, 127, 80)
+cornflowerblue	rgb(100, 149, 237)
+cornsilk	rgb(255, 248, 220)
+crimson	rgb(220, 20, 60)
+cyan	rgb( 0, 255, 255)
+darkblue	rgb( 0, 0, 139)
+darkcyan	rgb( 0, 139, 139)
+darkgoldenrod	rgb(184, 134, 11)
+darkgray	rgb(169, 169, 169)
+darkgreen	rgb( 0, 100, 0)
+darkgrey	rgb(169, 169, 169)
+darkkhaki	rgb(189, 183, 107)
+darkmagenta	rgb(139, 0, 139)
+darkolivegreen	rgb( 85, 107, 47)
+darkorange	rgb(255, 140, 0)
+darkorchid	rgb(153, 50, 204)
+darkred	rgb(139, 0, 0)
+darksalmon	rgb(233, 150, 122)
+darkseagreen	rgb(143, 188, 143)
+darkslateblue	rgb( 72, 61, 139)
+darkslategray	rgb( 47, 79, 79)
+darkslategrey	rgb( 47, 79, 79)
+darkturquoise	rgb( 0, 206, 209)
+darkviolet	rgb(148, 0, 211)
+deeppink	rgb(255, 20, 147)
+deepskyblue	rgb( 0, 191, 255)
+dimgray	rgb(105, 105, 105)
+dimgrey	rgb(105, 105, 105)
+dodgerblue	rgb( 30, 144, 255)
+firebrick	rgb(178, 34, 34)
+floralwhite	rgb(255, 250, 240)
+forestgreen	rgb( 34, 139, 34)
+fuchsia	rgb(255, 0, 255)
+gainsboro	rgb(220, 220, 220)
+ghostwhite	rgb(248, 248, 255)
+gold	rgb(255, 215, 0)
+goldenrod	rgb(218, 165, 32)
+gray	rgb(128, 128, 128)
+grey	rgb(128, 128, 128)
+green	rgb( 0, 128, 0)
+greenyellow	rgb(173, 255, 47)
+honeydew	rgb(240, 255, 240)
+hotpink	rgb(255, 105, 180)
+indianred	rgb(205, 92, 92)
+indigo	rgb( 75, 0, 130)
+ivory	rgb(255, 255, 240)
+khaki	rgb(240, 230, 140)
+lavender	rgb(230, 230, 250)
+lavenderblush	rgb(255, 240, 245)
+lawngreen	rgb(124, 252, 0)
+lemonchiffon	rgb(255, 250, 205)
+lightblue	rgb(173, 216, 230)
+lightcoral	rgb(240, 128, 128)
+lightcyan	rgb(224, 255, 255)
+lightgoldenrodyellow	rgb(250, 250, 210)
+lightgray	rgb(211, 211, 211)
+lightgreen	rgb(144, 238, 144)
+lightgrey	rgb(211, 211, 211)
+lightpink	rgb(255, 182, 193)
+lightsalmon	rgb(255, 160, 122)
+lightseagreen	rgb( 32, 178, 170)
+lightskyblue	rgb(135, 206, 250)
+lightslategray	rgb(119, 136, 153)
+lightslategrey	rgb(119, 136, 153)
+lightsteelblue	rgb(176, 196, 222)
+lightyellow	rgb(255, 255, 224)
+lime	rgb( 0, 255, 0)
+limegreen	rgb( 50, 205, 50)
+linen	rgb(250, 240, 230)
+magenta	rgb(255, 0, 255)
+maroon	rgb(128, 0, 0)
+mediumaquamarine	rgb(102, 205, 170)
+mediumblue	rgb( 0, 0, 205)
+mediumorchid	rgb(186, 85, 211)
+mediumpurple	rgb(147, 112, 219)
+mediumseagreen	rgb( 60, 179, 113)
+mediumslateblue	rgb(123, 104, 238)
+mediumspringgreen	rgb( 0, 250, 154)
+mediumturquoise	rgb( 72, 209, 204)
+mediumvioletred	rgb(199, 21, 133)
+midnightblue	rgb( 25, 25, 112)
+mintcream	rgb(245, 255, 250)
+mistyrose	rgb(255, 228, 225)
+moccasin	rgb(255, 228, 181)
+navajowhite	rgb(255, 222, 173)
+navy	rgb( 0, 0, 128)
+oldlace	rgb(253, 245, 230)
+olive	rgb(128, 128, 0)
+olivedrab	rgb(107, 142, 35)
+orange	rgb(255, 165, 0)
+orangered	rgb(255, 69, 0)
+orchid	rgb(218, 112, 214)
+palegoldenrod	rgb(238, 232, 170)
+palegreen	rgb(152, 251, 152)
+paleturquoise	rgb(175, 238, 238)
+palevioletred	rgb(219, 112, 147)
+papayawhip	rgb(255, 239, 213)
+peachpuff	rgb(255, 218, 185)
+peru	rgb(205, 133, 63)
+pink	rgb(255, 192, 203)
+plum	rgb(221, 160, 221)
+powderblue	rgb(176, 224, 230)
+purple	rgb(128, 0, 128)
+red	rgb(255, 0, 0)
+rosybrown	rgb(188, 143, 143)
+royalblue	rgb( 65, 105, 225)
+saddlebrown	rgb(139, 69, 19)
+salmon	rgb(250, 128, 114)
+sandybrown	rgb(244, 164, 96)
+seagreen	rgb( 46, 139, 87)
+seashell	rgb(255, 245, 238)
+sienna	rgb(160, 82, 45)
+silver	rgb(192, 192, 192)
+skyblue	rgb(135, 206, 235)
+slateblue	rgb(106, 90, 205)
+slategray	rgb(112, 128, 144)
+slategrey	rgb(112, 128, 144)
+snow	rgb(255, 250, 250)
+springgreen	rgb( 0, 255, 127)
+steelblue	rgb( 70, 130, 180)
+tan	rgb(210, 180, 140)
+teal	rgb( 0, 128, 128)
+thistle	rgb(216, 191, 216)
+tomato	rgb(255, 99, 71)
+turquoise	rgb( 64, 224, 208)
+violet	rgb(238, 130, 238)
+wheat	rgb(245, 222, 179)
+white	rgb(255, 255, 255)
+whitesmoke	rgb(245, 245, 245)
+yellow	rgb(255, 255, 0)
+yellowgreen	rgb(154, 205, 50)
+ 	 
+*/
+
+/**
+ * Return a CSS color (#rrggbb) from a string.
+ * 
+ * Possible formats include:
+ * - named colors from the DVI color set: 'Yellow', 'red'... Case insensitive.
+ * - colors from the Mathematica set: 'm1'...'m9'
+ * - 3-digit hex: `'#d50'`
+ * - 6-digit hex: `'#dd5500'`
+ * - RGB functional: `'rgb(240, 20, 10)'`
+ * 
+ * In addition, colors can be mixed using the following syntax:
+ * `<mix> = <color>![<value>][!<mix>]`
+ * For example: 
+ * - `'blue!20'`  = 20% blue + 80% white
+ * - `'blue!20!black'` = 20% + 80% black
+ * - `'blue!20!black!30!green'` = (20% + 80% black) * 30 % + 70% green
+ * 
+ * If the input string is prefixed with a dash, the complementary color
+ * of the expression is returned.
+ * 
+ * This creative syntax is defined by the {@link http://mirror.jmu.edu/pub/CTAN/macros/latex/contrib/xcolor/xcolor.pdf|`xcolor` LaTeX package}.
+ * 
+ * @param {string} s - An expression representing a color value
+ * @return {string} An RGB color expressed as a hex-triplet preceded by `#`
+ * @memberof module:color
+ * @private
+ */
+
+function stringToColor(s) {
+  var colorSpec = s.toLowerCase().split('!');
+  var baseRed;
+  var baseGreen;
+  var baseBlue;
+  var red = 255;
+  var green = 255;
+  var blue = 255;
+  var mix = -1; // If the string is prefixed with a '-', use the complementary color
+
+  var complementary = colorSpec.length > 0 && colorSpec[0].charAt(0) === '-';
+  if (complementary) colorSpec[0] = colorSpec[0].slice(1);
+
+  for (var i = 0; i < colorSpec.length; i++) {
+    baseRed = red;
+    baseGreen = green;
+    baseBlue = blue;
+    var colorName = colorSpec[i].match(/([a-z0-9]*)/);
+    if (colorName) colorName = colorName[1];
+    var color = NAMED_COLORS[colorName] || MATHEMATICA_COLORS[colorName];
+    if (!color) color = colorSpec[i];
+    var m = color.match(/^#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i);
+
+    if (m && m[1] && m[2] && m[3]) {
+      // It's a six-digit hex number
+      red = Math.max(0, Math.min(255, parseInt(m[1], 16)));
+      green = Math.max(0, Math.min(255, parseInt(m[2], 16)));
+      blue = Math.max(0, Math.min(255, parseInt(m[3], 16)));
+    } else {
+      m = color.match(/^#([0-9a-f]{3})$/i);
+
+      if (m && m[1]) {
+        // It's a three-digit hex number
+        var r1 = parseInt(m[1][0], 16);
+        var g1 = parseInt(m[1][1], 16);
+        var b1 = parseInt(m[1][2], 16);
+        red = Math.max(0, Math.min(255, r1 * 16 + r1));
+        green = Math.max(0, Math.min(255, g1 * 16 + g1));
+        blue = Math.max(0, Math.min(255, b1 * 16 + b1));
+      } else {
+        // It's a rgb functional
+        m = color.match(/^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i);
+
+        if (m && m[1] && m[2] && m[3]) {
+          red = Math.max(0, Math.min(255, parseInt(m[1])));
+          green = Math.max(0, Math.min(255, parseInt(m[2])));
+          blue = Math.max(0, Math.min(255, parseInt(m[3])));
+        } else {
+          return null;
+        }
+      }
+    }
+
+    if (mix >= 0) {
+      red = (1.0 - mix) * red + mix * baseRed;
+      green = (1.0 - mix) * green + mix * baseGreen;
+      blue = (1.0 - mix) * blue + mix * baseBlue;
+      mix = -1;
+    }
+
+    if (i + 1 < colorSpec.length) {
+      mix = Math.max(0, Math.min(100, parseInt(colorSpec[++i]))) / 100.0;
+    }
+  }
+
+  if (mix >= 0) {
+    red = mix * red + (1.0 - mix) * baseRed;
+    green = mix * green + (1.0 - mix) * baseGreen;
+    blue = mix * blue + (1.0 - mix) * baseBlue;
+  }
+
+  if (complementary) {
+    red = 255 - red;
+    green = 255 - green;
+    blue = 255 - blue;
+  }
+
+  return '#' + ('00' + Math.round(red).toString(16)).slice(-2) + ('00' + Math.round(green).toString(16)).slice(-2) + ('00' + Math.round(blue).toString(16)).slice(-2);
+}
+
+function colorToString(color) {
+  var result = color.toUpperCase();
+
+  for (var c in NAMED_COLORS) {
+    if (NAMED_COLORS[c] === result) {
+      result = c;
+      break;
+    }
+  }
+
+  for (var _c in MATHEMATICA_COLORS) {
+    if (MATHEMATICA_COLORS[_c] === result) {
+      result = _c;
+      break;
+    }
+  }
+
+  return result;
+} // Export the public interface for this module
+
+
+var _default = {
+  stringToColor: stringToColor,
+  colorToString: colorToString,
+  AREA_COLORS: AREA_COLORS,
+  LINE_COLORS: LINE_COLORS
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/context.js b/dist/core/context.js
new file mode 100755
index 000000000..0168ac653
--- /dev/null
+++ b/dist/core/context.js
@@ -0,0 +1,145 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _mathstyle = _interopRequireDefault(require("./mathstyle.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+/**
+ * This class contains the rendering context of the current parse level.
+ *
+ * It also holds information about the parent context to handle scaling
+ * adjustments.
+ *
+ * When a new scope is entered, a clone of the context is created with `.clone()`
+ * so that any further changes remain local to the scope.
+ *
+ * A scope is defined for example by:
+ * - an explicit group enclosed in braces `{...}`
+ * - a semi-simple group enclosed in `\bgroup...\endgroup`
+ * - an environment delimited by `\begin{<envname>}...\end{<envname>}`
+ *
+ * @property {string} mathstyle `'text'` (aka 'inline'), `'display'`,
+ * `'script'` or `'scriptscript'`
+ * @property {number} opacity
+ * @property {number} size
+ * @property {boolean|object} generateID - If true, unique IDs should be 
+ * generated for each span so they can be mapped back to an atom. 
+ * Can also be an object with a `seed` field to generate a specific range of 
+ * IDs. Optionally, if a `groupNumbers` property is set to true, an additional 
+ * span will enclose strings of digits. This is used by read aloud to properly 
+ * pronounce (and highlight) numbers in expressions.
+ * @property {string} parentMathstyle
+ * @property {number} parentSize
+ * @property {object} macros A macros dictionary
+ *
+ * @class Context
+ * @global
+ * @private
+ */
+var Context =
+/*#__PURE__*/
+function () {
+  function Context(from) {
+    _classCallCheck(this, Context);
+
+    this.macros = from.macros || {};
+    this.generateID = from.generateID ? from.generateID : false;
+    this.mathstyle = _mathstyle.default.toMathstyle(from.mathstyle || 'displaystyle');
+    this.size = from.size || 'size5'; // medium size
+
+    this.parentMathstyle = from.parentMathstyle || this.mathstyle;
+    this.parentSize = from.parentSize || this.size;
+    this.opacity = from.opacity;
+  }
+  /**
+   * Returns a new context with the same properties as 'this'.
+   * @return {Context}
+   * @memberof Context
+   * @instance
+   * @private
+   */
+
+
+  _createClass(Context, [{
+    key: "clone",
+    value: function clone(override) {
+      var result = new Context(this);
+      result.parentMathstyle = this.mathstyle;
+      result.parentSize = this.size;
+      result.macros = this.macros;
+
+      if (override) {
+        // `'auto'` (or undefined) to indicate that the mathstyle should in
+        // fact not be changed. This is used when specifying the mathstyle 
+        // for some environments.
+        if (override.mathstyle === 'auto' || !override.mathstyle) {
+          delete override.mathstyle;
+        }
+
+        Object.assign(result, override);
+
+        if (typeof override.mathstyle === 'string') {
+          result.mathstyle = _mathstyle.default.toMathstyle(override.mathstyle);
+        }
+      }
+
+      return result;
+    }
+    /**
+     * Change the mathstyle of this context
+     * @param {string} value - `'auto'` to indicate that the mathstyle should in
+     * fact not be changed. This is used when specifying the mathstyle for some
+     * environments.
+     * @memberof Context
+     * @instance
+     * @private
+     */
+
+  }, {
+    key: "setMathstyle",
+    value: function setMathstyle(value) {
+      if (value && value !== 'auto') {
+        this.mathstyle = _mathstyle.default.toMathstyle(value);
+      }
+    }
+  }, {
+    key: "cramp",
+    value: function cramp() {
+      return this.clone({
+        'mathstyle': this.mathstyle.cramp()
+      });
+    }
+  }, {
+    key: "sup",
+    value: function sup() {
+      return this.clone({
+        'mathstyle': this.mathstyle.sup()
+      });
+    }
+  }, {
+    key: "sub",
+    value: function sub() {
+      return this.clone({
+        'mathstyle': this.mathstyle.sup()
+      });
+    }
+  }]);
+
+  return Context;
+}();
+
+var _default = {
+  Context: Context
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/definitions.js b/dist/core/definitions.js
new file mode 100644
index 000000000..faffb7712
--- /dev/null
+++ b/dist/core/definitions.js
@@ -0,0 +1,3777 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _fontMetrics = _interopRequireDefault(require("./fontMetrics.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+/**
+ * To organize the symbols when generating the documentation, we
+ * keep track of a category that gets assigned to each symbol.
+ * @private
+ */
+var category = '';
+var MATH_SYMBOLS = {};
+var FUNCTIONS = {};
+var ENVIRONMENTS = {};
+var MACROS = {
+  'iff': "\\;\u27FA\\;",
+  //>2,000 Note: additional spaces around the arrows
+  'nicefrac': '^{#1}\\!\\!/\\!_{#2}',
+  // From bracket.sty, Diract notation
+  'bra': '\\mathinner{\\langle{#1}|}',
+  'ket': '\\mathinner{|{#1}\\rangle}',
+  'braket': '\\mathinner{\\langle{#1}\\rangle}',
+  'set': '\\mathinner{\\lbrace #1 \\rbrace}',
+  'Bra': '\\left\\langle #1\\right|',
+  'Ket': '\\left|#1\\right\\rangle',
+  'Braket': '\\left\\langle{#1}\\right\\rangle',
+  'Set': '\\left\\lbrace #1 \\right\\rbrace'
+};
+var RIGHT_DELIM = {
+  '(': ')',
+  '{': '}',
+  '[': ']',
+  '|': '|',
+  '\\lbrace': '\\rbrace',
+  '\\{': '\\}',
+  '\\langle': '\\rangle',
+  '\\lfloor': '\\rfloor',
+  '\\lceil': '\\rceil',
+  '\\vert': '\\vert',
+  '\\lvert': '\\rvert',
+  '\\Vert': '\\Vert',
+  '\\lVert': '\\rVert',
+  '\\lbrack': '\\rbrack',
+  "\\ulcorner": "\\urcorner",
+  '\\llcorner': '\\lrcorner',
+  '\\lgroup': '\\rgroup',
+  '\\lmoustache': '\\rmoustache' // Frequency of a symbol.
+  // String constants corresponding to frequency values,
+  // which are the number of results returned by latexsearch.com
+  // When the precise number is known, it is provided. Otherwise,
+  // the following constants are used to denote an estimate.
+
+};
+var CRYPTIC = 'CRYPTIC';
+var ARCANE = 'ARCANE'; // const VERY_RARE = 'VERY_RARE';
+
+var RARE = 'RARE';
+var UNCOMMON = 'UNCOMMON';
+var COMMON = 'COMMON';
+var SUPERCOMMON = 'SUPERCOMMON';
+/**
+ * @type {Object.<string, number>}
+ * @private
+ */
+
+var FREQUENCY_VALUE = {
+  'CRYPTIC': 0,
+  'ARCANE': 200,
+  'VERY_RARE': 600,
+  'RARE': 1200,
+  'UNCOMMON': 2000,
+  'COMMON': 3000,
+  'SUPERCOMMON': 4000
+  /**
+   * Set the frequency of the specified symbol.
+   * Default frequency is UNCOMMON
+   * The argument list is a frequency value, followed by one or more symbol strings
+   * For example:
+   *  frequency(COMMON , '\\sin', '\\cos')
+   * @param {string|number} value The frequency as a string constant,
+   * or a numeric value [0...2000]
+   * @param {...string}
+   * @memberof module:definitions
+   * @private
+   */
+
+};
+
+function frequency(value) {
+  var v = typeof value === 'string' ? FREQUENCY_VALUE[value] : value;
+
+  for (var _len = arguments.length, symbols = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+    symbols[_key - 1] = arguments[_key];
+  }
+
+  for (var _i = 0, _symbols = symbols; _i < _symbols.length; _i++) {
+    var symbol = _symbols[_i];
+
+    if (MATH_SYMBOLS[symbol]) {
+      MATH_SYMBOLS[symbol].frequency = v;
+    }
+
+    if (FUNCTIONS[symbol]) {
+      // Make a copy of the entry, since it could be shared by multiple
+      // symbols
+      FUNCTIONS[symbol] = Object.assign({}, FUNCTIONS[symbol]);
+      FUNCTIONS[symbol].frequency = v;
+    }
+  }
+}
+/**
+ *
+ * @param {string} latexName    The common LaTeX command for this symbol
+ * @param {(string|string[])} mode
+ * @param {string} fontFamily
+ * @param {string} type
+ * @param {string} value
+ * @param {(number|string)} [frequency]
+ * @memberof module:definitions
+ * @private
+ */
+
+
+function defineSymbol(latexName, fontFamily, type, value, frequency) {
+  if (fontFamily && !/^(ams|cmr|bb|cal|frak|scr)$/.test(fontFamily)) {
+    console.log(fontFamily, latexName);
+  } // Convert a frequency constant to a numerical value
+
+
+  if (typeof frequency === 'string') frequency = FREQUENCY_VALUE[frequency];
+  MATH_SYMBOLS[latexName] = {
+    type: type === ORD ? MATHORD : type,
+    baseFontFamily: fontFamily,
+    value: value,
+    category: category,
+    // To group items when generating the documentation
+    frequency: frequency
+  };
+}
+/**
+ * Define a set of single-character symbols and all their attributes.
+ * The value associated with the symbol is the symbol itself.
+ * @param {string} string a string of single character symbols
+ * @param {string} mode
+ * @param {string} fontFamily
+ * @param {string} type
+ * @param {(string|number)} [frequency]
+ * @memberof module:definitions
+ * @private
+ */
+
+
+function defineSymbols(string) {
+  for (var i = 0; i < string.length; i++) {
+    var ch = string.charAt(i);
+    defineSymbol(ch, '', MATHORD, ch);
+  }
+}
+/**
+ * Define a set of single-character symbols as a range of Unicode codepoints
+ * @param {number} from First Unicode codepoint
+ * @param {number} to Last Unicode codepoint
+ * @memberof module:definitions
+ * @private
+ */
+
+
+function defineSymbolRange(from, to) {
+  for (var i = from; i <= to; i++) {
+    var ch = String.fromCodePoint(i);
+    defineSymbol(ch, '', 'mord', ch);
+  }
+}
+
+var CODEPOINT_SHORTCUTS = {
+  8739: '|',
+  0x00b7: '\\cdot',
+  0x00bc: '\\frac{1}{4}',
+  0x00bd: '\\frac{1}{2}',
+  0x00be: '\\frac{3}{4}',
+  0x2070: '^{0}',
+  0x2071: '^{i}',
+  0x00b9: '^{1}',
+  0x00b2: '^{2}',
+  0x00b3: '^{3}',
+  0x2074: '^{4}',
+  0x2075: '^{5}',
+  0x2076: '^{6}',
+  0x2077: '^{7}',
+  0x2078: '^{8}',
+  0x2079: '^{9}',
+  0x207a: '^{+}',
+  0x207b: '^{-}',
+  0x207c: '^{=}',
+  0x207f: '^{n}',
+  0x2080: '_{0}',
+  0x2081: '_{1}',
+  0x2082: '_{2}',
+  0x2083: '_{3}',
+  0x2084: '_{4}',
+  0x2085: '_{5}',
+  0x2086: '_{6}',
+  0x2087: '_{7}',
+  0x2088: '_{8}',
+  0x2089: '_{9}',
+  0x208A: '_{+}',
+  0x208B: '_{-}',
+  0x208C: '_{=}',
+  0x2090: '_{a}',
+  0x2091: '_{e}',
+  0x2092: '_{o}',
+  0x2093: '_{x}',
+  0x2032: '\\prime',
+  0x2033: '\\doubleprime',
+  0x2220: '\\angle',
+  0x2102: '\\C',
+  0x2115: '\\N',
+  0x2119: '\\P',
+  0x211A: '\\Q',
+  0x211D: '\\R',
+  0x2124: '\\Z'
+};
+/**
+ * Given a character, return a LaTeX expression matching its Unicode codepoint.
+ * If there is a matching symbol (e.g. \alpha) it is returned.
+ * @param {string} parseMode
+ * @param {number} cp
+ * @return {string}
+ * @memberof module:definitions
+ * @private
+ */
+
+function matchCodepoint(parseMode, cp) {
+  var s = String.fromCodePoint(cp); // Some symbols map to multiple codepoints.
+  // Some symbols are 'pseudosuperscript'. Convert them to a super(or sub)script.
+  // Map their alternative codepoints here.
+
+  if (parseMode === 'math' && CODEPOINT_SHORTCUTS[s]) return CODEPOINT_SHORTCUTS[s]; // Don't map 'simple' code point.
+  // For example "C" maps to \doubleStruckCapitalC, not the desired "C"
+
+  if (cp > 32 && cp < 127) return s;
+  var result = '';
+
+  if (parseMode === 'math') {
+    for (var p in MATH_SYMBOLS) {
+      if (MATH_SYMBOLS.hasOwnProperty(p)) {
+        if (MATH_SYMBOLS[p].value === s) {
+          result = p;
+          break;
+        }
+      }
+    }
+  } else {
+    for (var _p in TEXT_SYMBOLS) {
+      if (TEXT_SYMBOLS.hasOwnProperty(_p)) {
+        if (TEXT_SYMBOLS[_p] === s) {
+          result = _p;
+          break;
+        }
+      }
+    }
+  }
+
+  return result || s;
+}
+/**
+ * Given a Unicode character returns {char:, variant:, style} corresponding
+ * to this codepoint. `variant` is optional.
+ * This maps characters such as "blackboard uppercase C" to
+ * {char: 'C', variant: 'double-struck', style:''}
+ * @param {string} char
+ */
+
+/* Some symbols in the MATHEMATICAL ALPHANUMERICAL SYMBOLS block had
+   been previously defined in other blocks. Remap them */
+
+
+var MATH_LETTER_EXCEPTIONS = {
+  0x1d455: 0x0210e,
+  0x1D49D: 0x0212C,
+  0x1D4A0: 0x02130,
+  0x1D4A1: 0x02131,
+  0x1D4A3: 0x0210B,
+  0x1D4A4: 0x02110,
+  0x1D4A7: 0x02112,
+  0x1D4A8: 0x02133,
+  0x1D4AD: 0x0211B,
+  0x1D4BA: 0x0212F,
+  0x1D4BC: 0x0210A,
+  0x1D4C4: 0x02134,
+  0x1D506: 0x0212D,
+  0x1D50B: 0x0210C,
+  0x1D50C: 0x02111,
+  0x1D515: 0x0211C,
+  0x1D51D: 0x02128,
+  0x1D53A: 0x02102,
+  0x1D53F: 0x0210D,
+  0x1D545: 0x02115,
+  0x1D547: 0x02119,
+  0x1D548: 0x0211A,
+  0x1D549: 0x0211D,
+  0x1D551: 0x02124
+};
+var MATH_UNICODE_BLOCKS = [{
+  start: 0x1D400,
+  len: 26,
+  offset: 65,
+  style: 'bold'
+}, {
+  start: 0x1D41A,
+  len: 26,
+  offset: 97,
+  style: 'bold'
+}, {
+  start: 0x1D434,
+  len: 26,
+  offset: 65,
+  style: 'italic'
+}, {
+  start: 0x1D44E,
+  len: 26,
+  offset: 97,
+  style: 'italic'
+}, {
+  start: 0x1D468,
+  len: 26,
+  offset: 65,
+  style: 'bolditalic'
+}, {
+  start: 0x1D482,
+  len: 26,
+  offset: 97,
+  style: 'bolditalic'
+}, {
+  start: 0x1D49c,
+  len: 26,
+  offset: 65,
+  variant: 'script'
+}, {
+  start: 0x1D4b6,
+  len: 26,
+  offset: 97,
+  variant: 'script'
+}, {
+  start: 0x1D4d0,
+  len: 26,
+  offset: 65,
+  variant: 'script',
+  style: 'bold'
+}, {
+  start: 0x1D4ea,
+  len: 26,
+  offset: 97,
+  variant: 'script',
+  style: 'bold'
+}, {
+  start: 0x1D504,
+  len: 26,
+  offset: 65,
+  variant: 'fraktur'
+}, {
+  start: 0x1D51e,
+  len: 26,
+  offset: 97,
+  variant: 'fraktur'
+}, {
+  start: 0x1D56c,
+  len: 26,
+  offset: 65,
+  variant: 'fraktur',
+  style: 'bold'
+}, {
+  start: 0x1D586,
+  len: 26,
+  offset: 97,
+  variant: 'fraktur',
+  style: 'bold'
+}, {
+  start: 0x1D538,
+  len: 26,
+  offset: 65,
+  variant: 'double-struck'
+}, {
+  start: 0x1D552,
+  len: 26,
+  offset: 97,
+  variant: 'double-struck'
+}, {
+  start: 0x1D5A0,
+  len: 26,
+  offset: 65,
+  variant: 'sans-serif'
+}, {
+  start: 0x1D5BA,
+  len: 26,
+  offset: 97,
+  variant: 'sans-serif'
+}, {
+  start: 0x1D5D4,
+  len: 26,
+  offset: 65,
+  variant: 'sans-serif',
+  style: 'bold'
+}, {
+  start: 0x1D5EE,
+  len: 26,
+  offset: 97,
+  variant: 'sans-serif',
+  style: 'bold'
+}, {
+  start: 0x1D608,
+  len: 26,
+  offset: 65,
+  variant: 'sans-serif',
+  style: 'italic'
+}, {
+  start: 0x1D622,
+  len: 26,
+  offset: 97,
+  variant: 'sans-serif',
+  style: 'italic'
+}, {
+  start: 0x1D63c,
+  len: 26,
+  offset: 65,
+  variant: 'sans-serif',
+  style: 'bolditalic'
+}, {
+  start: 0x1D656,
+  len: 26,
+  offset: 97,
+  variant: 'sans-serif',
+  style: 'bolditalic'
+}, {
+  start: 0x1D670,
+  len: 26,
+  offset: 65,
+  variant: 'monospace'
+}, {
+  start: 0x1D68A,
+  len: 26,
+  offset: 97,
+  variant: 'monospace'
+}, {
+  start: 0x1D6A8,
+  len: 25,
+  offset: 0x391,
+  style: 'bold'
+}, {
+  start: 0x1D6C2,
+  len: 25,
+  offset: 0x3B1,
+  style: 'bold'
+}, {
+  start: 0x1D6E2,
+  len: 25,
+  offset: 0x391,
+  style: 'italic'
+}, {
+  start: 0x1D6FC,
+  len: 25,
+  offset: 0x3B1,
+  style: 'italic'
+}, {
+  start: 0x1D71C,
+  len: 25,
+  offset: 0x391,
+  style: 'bolditalic'
+}, {
+  start: 0x1D736,
+  len: 25,
+  offset: 0x3B1,
+  style: 'bolditalic'
+}, {
+  start: 0x1D756,
+  len: 25,
+  offset: 0x391,
+  variant: 'sans-serif',
+  style: 'bold'
+}, {
+  start: 0x1D770,
+  len: 25,
+  offset: 0x3B1,
+  variant: 'sans-serif',
+  style: 'bold'
+}, {
+  start: 0x1D790,
+  len: 25,
+  offset: 0x391,
+  variant: 'sans-serif',
+  style: 'bolditalic'
+}, {
+  start: 0x1D7AA,
+  len: 25,
+  offset: 0x3B1,
+  variant: 'sans-serif',
+  style: 'bolditalic'
+}, {
+  start: 0x1D7CE,
+  len: 10,
+  offset: 48,
+  variant: '',
+  style: 'bold'
+}, {
+  start: 0x1D7D8,
+  len: 10,
+  offset: 48,
+  variant: 'double-struck'
+}, {
+  start: 0x1D7E3,
+  len: 10,
+  offset: 48,
+  variant: 'sans-serif'
+}, {
+  start: 0x1D7Ec,
+  len: 10,
+  offset: 48,
+  variant: 'sans-serif',
+  style: 'bold'
+}, {
+  start: 0x1D7F6,
+  len: 10,
+  offset: 48,
+  variant: 'monospace'
+}];
+
+function unicodeToMathVariant(char) {
+  var codepoint = char;
+  if (typeof char === 'string') codepoint = char.codePointAt(0);
+
+  if ((codepoint < 0x1d400 || codepoint > 0x1d7ff) && (codepoint < 0x2100 || codepoint > 0x214f)) {
+    return {
+      char: char
+    };
+  } // Handle the 'gap' letters by converting them back into their logical range
+
+
+  for (var c in MATH_LETTER_EXCEPTIONS) {
+    if (MATH_LETTER_EXCEPTIONS.hasOwnProperty(c)) {
+      if (MATH_LETTER_EXCEPTIONS[c] === codepoint) {
+        codepoint = c;
+        break;
+      }
+    }
+  }
+
+  for (var i = 0; i < MATH_UNICODE_BLOCKS.length; i++) {
+    if (codepoint >= MATH_UNICODE_BLOCKS[i].start && codepoint < MATH_UNICODE_BLOCKS[i].start + MATH_UNICODE_BLOCKS[i].len) {
+      return {
+        char: String.fromCodePoint(codepoint - MATH_UNICODE_BLOCKS[i].start + MATH_UNICODE_BLOCKS[i].offset),
+        variant: MATH_UNICODE_BLOCKS[i].variant,
+        style: MATH_UNICODE_BLOCKS[i].style
+      };
+    }
+  }
+
+  return {
+    char: char
+  };
+}
+/**
+ * Given a character and variant ('bb', 'cal', etc...)
+ * return the corresponding unicode character (a string)
+ * @param {string} char
+ * @param {string} variant
+ */
+
+
+function mathVariantToUnicode(char, variant, style) {
+  if (!/[A-Za-z0-9]/.test(char)) return char;
+  if (!variant && !style) return char;
+  var codepoint = char.codePointAt(0);
+
+  for (var i = 0; i < MATH_UNICODE_BLOCKS.length; i++) {
+    if (!variant || MATH_UNICODE_BLOCKS[i].variant === variant) {
+      if (!style || MATH_UNICODE_BLOCKS[i].style === style) {
+        if (codepoint >= MATH_UNICODE_BLOCKS[i].offset && codepoint < MATH_UNICODE_BLOCKS[i].offset + MATH_UNICODE_BLOCKS[i].len) {
+          var result = MATH_UNICODE_BLOCKS[i].start + codepoint - MATH_UNICODE_BLOCKS[i].offset;
+          return String.fromCodePoint(MATH_LETTER_EXCEPTIONS[result] || result);
+        }
+      }
+    }
+  }
+
+  return char;
+}
+
+function codepointToLatex(parseMode, cp) {
+  // Codepoint shortcuts have priority over variants
+  // That is, "\N" vs "\mathbb{N}"
+  if (parseMode === 'text') return String.fromCodePoint(cp);
+  var result;
+  if (CODEPOINT_SHORTCUTS[cp]) return CODEPOINT_SHORTCUTS[cp];
+  var v = unicodeToMathVariant(cp);
+  if (!v.style && !v.variant) return matchCodepoint(parseMode, cp);
+  result = v.char;
+
+  if (v.variant) {
+    result = '\\' + v.variant + '{' + result + '}';
+  }
+
+  if (v.style === 'bold') {
+    result = '\\mathbf{' + result + '}';
+  } else if (v.style === 'italic') {
+    result = '\\mathit{' + result + '}';
+  } else if (v.style === 'bolditalic') {
+    result = '\\mathbf{\\mathit{' + result + '}}';
+  }
+
+  return '\\mathord{' + result + '}';
+}
+
+function unicodeStringToLatex(parseMode, s) {
+  var result = '';
+  var _iteratorNormalCompletion = true;
+  var _didIteratorError = false;
+  var _iteratorError = undefined;
+
+  try {
+    for (var _iterator = s[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      var cp = _step.value;
+      result += codepointToLatex(parseMode, cp.codePointAt(0));
+    }
+  } catch (err) {
+    _didIteratorError = true;
+    _iteratorError = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion && _iterator.return != null) {
+        _iterator.return();
+      }
+    } finally {
+      if (_didIteratorError) {
+        throw _iteratorError;
+      }
+    }
+  }
+
+  return result;
+}
+/**
+ *
+ * @param {string} mode
+ * @param {string} command
+ * @return {boolean} True if command is allowed in the mode
+ * (note that command can also be a single character, e.g. "a")
+ * @memberof module:definitions
+ * @private
+ */
+
+
+function commandAllowed(mode, command) {
+  if (FUNCTIONS[command] && (mode !== 'text' || FUNCTIONS[command].allowedInText)) {
+    return true;
+  }
+
+  if ({
+    'text': TEXT_SYMBOLS,
+    'math': MATH_SYMBOLS
+  }[mode][command]) {
+    return true;
+  }
+
+  return false;
+}
+
+function getValue(mode, symbol) {
+  if (mode === 'math') {
+    return MATH_SYMBOLS[symbol] && MATH_SYMBOLS[symbol].value ? MATH_SYMBOLS[symbol].value : symbol;
+  }
+
+  return TEXT_SYMBOLS[symbol] ? TEXT_SYMBOLS[symbol] : symbol;
+}
+
+function getEnvironmentInfo(name) {
+  var result = ENVIRONMENTS[name];
+
+  if (!result) {
+    result = {
+      params: '',
+      parser: null,
+      mathstyle: 'displaystyle',
+      tabular: true,
+      colFormat: [],
+      lFence: '.',
+      rFence: '.' // arrayStretch: 1,
+
+    };
+  }
+
+  return result;
+}
+/**
+ * @param {string} symbol    A command (e.g. '\alpha') or a character (e.g. 'a')
+ * @param {string} parseMode One of 'math' or 'text'
+ * @param {object} macros A macros dictionary
+ * @return {object} An info structure about the symbol, or null
+ * @memberof module:definitions
+ * @private
+ */
+
+
+function getInfo(symbol, parseMode, macros) {
+  if (symbol.length === 0) return null;
+  var info = null;
+
+  if (symbol.charAt(0) === '\\') {
+    // This could be a function or a symbol
+    info = FUNCTIONS[symbol];
+
+    if (info) {
+      // We've got a match
+      if (parseMode === 'math' || info.allowedInText) return info; // That's a valid function, but it's not allowed in non-math mode,
+      // and we're in non-math mode
+
+      return null;
+    }
+
+    if (!info) {
+      // It wasn't a function, maybe it's a symbol?
+      if (parseMode === 'math') {
+        info = MATH_SYMBOLS[symbol];
+      } else if (TEXT_SYMBOLS[symbol]) {
+        info = {
+          value: TEXT_SYMBOLS[symbol]
+        };
+      }
+    }
+
+    if (!info) {
+      // Maybe it's a macro
+      var command = symbol.slice(1);
+
+      if (macros && macros[command]) {
+        var def = macros[command];
+
+        if (_typeof(def) === 'object') {
+          def = def.def;
+        }
+
+        var argCount = 0; // Let's see if there are arguments in the definition.
+
+        if (/(^|[^\\])#1/.test(def)) argCount = 1;
+        if (/(^|[^\\])#2/.test(def)) argCount = 2;
+        if (/(^|[^\\])#3/.test(def)) argCount = 3;
+        if (/(^|[^\\])#4/.test(def)) argCount = 4;
+        if (/(^|[^\\])#5/.test(def)) argCount = 5;
+        if (/(^|[^\\])#6/.test(def)) argCount = 6;
+        if (/(^|[^\\])#7/.test(def)) argCount = 7;
+        if (/(^|[^\\])#8/.test(def)) argCount = 8;
+        if (/(^|[^\\])#9/.test(def)) argCount = 9;
+        info = {
+          type: 'group',
+          allowedInText: false,
+          params: [],
+          infix: false
+        };
+
+        while (argCount >= 1) {
+          info.params.push({
+            optional: false,
+            type: 'math',
+            defaultValue: null,
+            placeholder: null
+          });
+          argCount -= 1;
+        }
+      }
+    }
+  } else {
+    if (parseMode === 'math') {
+      info = MATH_SYMBOLS[symbol];
+    } else if (TEXT_SYMBOLS[symbol]) {
+      info = {
+        value: TEXT_SYMBOLS[symbol]
+      };
+    }
+  } // Special case `f`, `g` and `h` are recognized as functions.
+
+
+  if (info && info.type === 'mord' && (info.value === 'f' || info.value === 'g' || info.value === 'h')) {
+    info.isFunction = true;
+  }
+
+  return info;
+}
+/**
+ * Return an array of suggestion for completing string 's'.
+ * For example, for 'si', it could return ['sin', 'sinh', 'sim', 'simeq', 'sigma']
+ * Infix operators are excluded, since they are deprecated commands.
+ * @param {string} s
+ * @return {string[]}
+ * @memberof module:definitions
+ * @private
+ */
+
+
+function suggest(s) {
+  if (s.length <= 1) return [];
+  var result = []; // Iterate over items in the dictionary
+
+  for (var p in FUNCTIONS) {
+    if (FUNCTIONS.hasOwnProperty(p)) {
+      if (p.startsWith(s) && !FUNCTIONS[p].infix) {
+        result.push({
+          match: p,
+          frequency: FUNCTIONS[p].frequency
+        });
+      }
+    }
+  }
+
+  for (var _p2 in MATH_SYMBOLS) {
+    if (MATH_SYMBOLS.hasOwnProperty(_p2)) {
+      if (_p2.startsWith(s)) {
+        result.push({
+          match: _p2,
+          frequency: MATH_SYMBOLS[_p2].frequency
+        });
+      }
+    }
+  }
+
+  result.sort(function (a, b) {
+    if (a.frequency === b.frequency) {
+      return a.match.length - b.match.length;
+    }
+
+    return (b.frequency || 0) - (a.frequency || 0);
+  });
+  return result;
+} // Fonts
+
+
+var MAIN = ''; // The "main" KaTeX font (in fact one of several
+// depending on the math variant, size, etc...)
+
+var AMS = 'ams'; // Some symbols are not in the "main" KaTeX font
+// or have a different glyph available in the "AMS"
+// font (`\hbar` and `\hslash` for example).
+// Type
+
+var ORD = 'mord';
+var MATHORD = 'mord'; // Ordinary, e.g. '/'
+
+var BIN = 'mbin'; // e.g. '+'
+
+var REL = 'mrel'; // e.g. '='
+
+var OPEN = 'mopen'; // e.g. '('
+
+var CLOSE = 'mclose'; // e.g. ')'
+
+var PUNCT = 'mpunct'; // e.g. ','
+
+var INNER = 'minner'; // for fractions and \left...\right.
+// const ACCENT = 'accent';
+
+var SPACING = 'spacing';
+/**
+ * An argument template has the following syntax:
+ *
+ * <placeholder>:<type>=<default>
+ *
+ * where
+ * - <placeholder> is a string whose value is displayed when the argument
+ *   is missing
+ * - <type> is one of 'string', 'color', 'dimen', 'auto', 'text', 'math'
+ * - <default> is the default value if none is provided for an optional
+ * parameter
+ *
+ * @param {string} argTemplate
+ * @param {boolean} isOptional
+ * @memberof module:definitions
+ * @private
+ */
+
+function parseParamTemplateArgument(argTemplate, isOptional) {
+  var r = argTemplate.match(/=(.+)/);
+  var defaultValue = '{}';
+  var type = 'auto';
+  var placeholder = null;
+
+  if (r) {
+    console.assert(isOptional, "Can't provide a default value for required parameters");
+    defaultValue = r[1];
+  } // Parse the type (:type)
+
+
+  r = argTemplate.match(/:([^=]+)/);
+  if (r) type = r[1].trim(); // Parse the placeholder
+
+  r = argTemplate.match(/^([^:=]+)/);
+  if (r) placeholder = r[1].trim();
+  return {
+    optional: isOptional,
+    type: type,
+    defaultValue: defaultValue,
+    placeholder: placeholder
+  };
+}
+
+function parseParamTemplate(paramTemplate) {
+  if (!paramTemplate || paramTemplate.length === 0) return [];
+  var result = [];
+  var params = paramTemplate.split(']');
+
+  if (params[0].charAt(0) === '[') {
+    // We found at least one optional parameter.
+    result.push(parseParamTemplateArgument(params[0].slice(1), true)); // Parse the rest
+
+    for (var i = 1; i <= params.length; i++) {
+      result = result.concat(parseParamTemplate(params[i]));
+    }
+  } else {
+    params = paramTemplate.split('}');
+
+    if (params[0].charAt(0) === '{') {
+      // We found a required parameter
+      result.push(parseParamTemplateArgument(params[0].slice(1), false)); // Parse the rest
+
+      for (var _i2 = 1; _i2 <= params.length; _i2++) {
+        result = result.concat(parseParamTemplate(params[_i2]));
+      }
+    }
+  }
+
+  return result;
+}
+
+function parseArgAsString(arg) {
+  return arg.map(function (x) {
+    return x.body;
+  }).join('');
+}
+/**
+ * Define one or more environments to be used with
+ *         \begin{<env-name>}...\end{<env-name>}.
+ *
+ * @param {string|string[]} names
+ * @param {string} params The number and type of required and optional parameters.
+ * @param {object} options
+ * -
+ * @param {function(*)} parser
+ * @memberof module:definitions
+ * @private
+ */
+
+
+function defineEnvironment(names, params, options, parser) {
+  if (typeof names === 'string') names = [names];
+  if (!options) options = {};
+  var parsedParams = parseParamTemplate(params); // Set default values of functions
+
+  var data = {
+    // 'category' is a global variable keeping track of the
+    // the current category being defined. This value is used
+    // strictly to group items in generateDocumentation().
+    category: category,
+    // Params: the parameters for this function, an array of
+    // {optional, type, defaultValue, placeholder}
+    params: parsedParams,
+    // Callback to parse the arguments
+    parser: parser,
+    mathstyle: 'displaystyle',
+    tabular: options.tabular || true,
+    colFormat: options.colFormat || []
+  };
+  var _iteratorNormalCompletion2 = true;
+  var _didIteratorError2 = false;
+  var _iteratorError2 = undefined;
+
+  try {
+    for (var _iterator2 = names[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+      var name = _step2.value;
+      ENVIRONMENTS[name] = data;
+    }
+  } catch (err) {
+    _didIteratorError2 = true;
+    _iteratorError2 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+        _iterator2.return();
+      }
+    } finally {
+      if (_didIteratorError2) {
+        throw _iteratorError2;
+      }
+    }
+  }
+}
+/**
+ * Define one of more functions.
+ *
+ * @param {string|string[]} names
+ * @param {string} params The number and type of required and optional parameters.
+ * For example: '{}' defines a single mandatory parameter
+ * '[index=2]{indicand:auto}' defines two params, one optional, one required
+
+ * @param {object} options
+ * - infix
+ * - allowedInText
+ * @param {function} parseFunction
+ * @memberof module:definitions
+ * @private
+ */
+
+
+function defineFunction(names, params, options, parseFunction) {
+  if (typeof names === 'string') {
+    names = [names];
+  }
+
+  if (!options) options = {}; // Set default values of functions
+
+  var data = {
+    // 'category' is a global variable keeping track of the
+    // the current category being defined. This value is used
+    // strictly to group items in generateDocumentation().
+    category: category,
+    // The base font family, if present, indicates that this font family
+    // should always be used to render atom. For example, functions such
+    // as "sin", etc... are always drawn in a roman font,
+    // regardless of the font styling a user may specify.
+    baseFontFamily: options.fontFamily,
+    // The parameters for this function, an array of
+    // {optional, type, defaultValue, placeholder}
+    params: parseParamTemplate(params),
+    allowedInText: !!options.allowedInText,
+    infix: !!options.infix,
+    parse: parseFunction
+  };
+  var _iteratorNormalCompletion3 = true;
+  var _didIteratorError3 = false;
+  var _iteratorError3 = undefined;
+
+  try {
+    for (var _iterator3 = names[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+      var name = _step3.value;
+      FUNCTIONS[name] = data;
+    }
+  } catch (err) {
+    _didIteratorError3 = true;
+    _iteratorError3 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+        _iterator3.return();
+      }
+    } finally {
+      if (_didIteratorError3) {
+        throw _iteratorError3;
+      }
+    }
+  }
+}
+
+category = 'Environments';
+/*
+
+<columns> ::= <column>*<line>
+<column> ::= <line>('l'|'c'|'r')
+<line> ::= '|' | '||' | ''
+
+'math',
+                frequency 0
+'displaymath',
+                frequency 8
+
+'equation'      centered, numbered
+                frequency 8
+
+'subequations'   with an 'equation' environment, appends a letter to eq no
+                frequency 1
+
+'array',        {columns:text}
+                cells are textstyle math
+                no fence
+
+'eqnarray'      DEPRECATED see http://www.tug.org/pracjourn/2006-4/madsen/madsen.pdf
+                {rcl}
+                first and last cell in each row is displaystyle math
+                each cell has a margin of \arraycolsep
+                Each line has a eqno
+                frequency 7
+
+
+'theorem'       text mode. Prepends in bold 'Theorem <counter>', then body in italics.
+
+'multline'      single column
+                first row left aligned, last right aligned, others centered
+                last line has an eqn. counter. multline* will omit the counter
+                no output if inside an equation
+
+
+'gather'        at most two columns
+                first column centered, second column right aligned
+                frequency 1
+
+'gathered'      must be in equation environment
+                single column,
+                centered
+                frequency: COMMON
+                optional argument: [b], [t] to vertical align
+
+'align'        multiple columns,
+                alternating rl
+                there is some 'space' (additional column?) between each pair
+                each line is numbered (except when inside an equation environment)
+                there is an implicit {} at the beginning of left columns
+
+'aligned'      must be in equation environment
+                frequency: COMMON
+                @{}r@{}l@{\quad}@{}r@{}l@{}
+
+'split'         must be in an equation environment,
+                two columns, additional columns are interpreted as line breaks
+                first column is right aligned, second column is left aligned
+                entire construct is numbered (as opposed to 'align' where each line is numbered)
+                frequency: 0
+
+
+'alignedat'
+From AMSMath:
+---The alignedat environment was changed to take two arguments rather
+than one: a mandatory argument (as formerly) specifying the number of
+align structures, and a new optional one specifying the placement of the
+environment (parallel to the optional argument of aligned). However,
+aligned is simpler to use, allowing any number of aligned structures
+automatically, and therefore the use of alignedat is deprecated.
+
+
+ 'alignat'      {pairs:number}
+                {rl} alternating as many times as indicated by <pairs> arg
+                no space between column pairs (unlike align)
+                there is an implicit {} at the beginning of left columns
+                frequency: 0
+
+ 'flalign'      multiple columns
+                alternate rl
+                third column further away than align...?
+                frequency: 0
+
+
+'matrix'        at most 10 columns
+                cells centered
+                no fence
+                no colsep at beginning or end
+                (mathtools package add an optional arg for the cell alignment)
+                frequency: COMMON
+
+'pmatrix'       fence: ()
+                frequency: COMMON
+
+'bmatrix'       fence: []
+                frequency: COMMON
+
+'Bmatrix'       fence: {}
+                frequency: 237
+
+'vmatrix'       fence: \vert
+                frequency: 368
+
+'Vmatrix'       fence: \Vert
+                frequency: 41
+
+'smallmatrix'   displaystyle: scriptstyle (?)
+                frequency: 279
+
+'cases'
+                frequency: COMMON
+                l@{2}l
+
+'center'        text mode only?
+                frequency: ?
+*/
+// See https://en.wikibooks.org/wiki/LaTeX/Mathematics
+// and http://www.ele.uri.edu/faculty/vetter/Other-stuff/latex/Mathmode.pdf
+
+/*
+The star at the end of the name of a displayed math environment causes that
+the formula lines won't be numbered. Otherwise they would automatically get a number.
+
+\notag will also turn off the numbering.
+\shoveright and \shoveleft will force alignment of a line
+
+The only difference between align and equation is the spacing of the formulas.
+You should attempt to use equation when possible, and align when you have multi-line formulas.
+Equation will have space before/after < 1em if line before/after is short enough.
+
+Also: equation throws an error when you have an & inside the environment,
+so look out for that when converting between the two.
+
+
+
+Whereas align produces a structure whose width is the full line width, aligned
+gives a width that is the actual width of the contents, thus it can be used as
+a component in a containing expression, e.g. for putting the entire alignment
+in a parenthesis
+*/
+
+defineEnvironment('math', '', {
+  frequency: 0
+}, function () {
+  return {
+    mathstyle: 'textstyle'
+  };
+});
+defineEnvironment('displaymath', '', {
+  frequency: 8
+}, function () {
+  return {
+    mathstyle: 'displaystyle'
+  };
+}); // defineEnvironment('text', '', {
+//     frequency: 0,
+//     }, function(name, args) {
+//     return {
+//         mathstyle: 'text',         // @todo: not quite right, not a style, a parsemode...
+//     };
+// });
+
+defineEnvironment('array', '{columns:colspec}', {
+  frequency: COMMON
+}, function (name, args) {
+  return {
+    colFormat: args[0],
+    mathstyle: 'textstyle'
+  };
+});
+defineEnvironment('eqnarray', '', {}, function () {
+  return {};
+});
+defineEnvironment('equation', '', {}, function () {
+  return {
+    colFormat: [{
+      align: 'c'
+    }]
+  };
+});
+defineEnvironment('subequations', '', {}, function () {
+  return {
+    colFormat: [{
+      align: 'c'
+    }]
+  };
+}); // Note spelling: MULTLINE, not multiline.
+
+defineEnvironment('multline', '', {}, function () {
+  return {
+    firstRowFormat: [{
+      align: 'l'
+    }],
+    colFormat: [{
+      align: 'c'
+    }],
+    lastRowFormat: [{
+      align: 'r'
+    }]
+  };
+}); // An AMS-Math environment
+// See amsmath.dtx:3565
+// Note that some versions of AMS-Math have a gap on the left.
+// More recent version suppresses that gap, but have an option to turn it back on
+// for backward compatibility.
+
+defineEnvironment(['align', 'aligned'], '', {}, function (name, args, array) {
+  var colCount = 0;
+  var _iteratorNormalCompletion4 = true;
+  var _didIteratorError4 = false;
+  var _iteratorError4 = undefined;
+
+  try {
+    for (var _iterator4 = array[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
+      var row = _step4.value;
+      colCount = Math.max(colCount, row.length);
+    }
+  } catch (err) {
+    _didIteratorError4 = true;
+    _iteratorError4 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
+        _iterator4.return();
+      }
+    } finally {
+      if (_didIteratorError4) {
+        throw _iteratorError4;
+      }
+    }
+  }
+
+  var colFormat = [{
+    gap: 0
+  }, {
+    align: 'r'
+  }, {
+    gap: 0
+  }, {
+    align: 'l'
+  }];
+  var i = 2;
+
+  while (i < colCount) {
+    colFormat.push({
+      gap: 1
+    });
+    colFormat.push({
+      align: 'r'
+    });
+    colFormat.push({
+      gap: 0
+    });
+    colFormat.push({
+      align: 'l'
+    });
+    i += 2;
+  }
+
+  colFormat.push({
+    gap: 0
+  });
+  return {
+    colFormat: colFormat,
+    jot: 0.3 // Jot is an extra gap between lines of numbered equation.
+    // It's 3pt by default in LaTeX (ltmath.dtx:181)
+
+  };
+}); // defineEnvironment('alignat', '', {}, function(name, args) {
+//     return {
+//     };
+// });
+// defineEnvironment('flalign', '', {}, function(name, args) {
+//     return {
+//     };
+// });
+
+defineEnvironment('split', '', {}, function () {
+  return {};
+});
+defineEnvironment(['gather', 'gathered'], '', {}, function () {
+  // An AMS-Math environment
+  // %    The \env{gathered} environment is for several lines that are
+  // %    centered independently.
+  // From amstex.sty
+  // \newenvironment{gathered}[1][c]{%
+  //   \relax\ifmmode\else\nonmatherr@{\begin{gathered}}\fi
+  //   \null\,%
+  //   \if #1t\vtop \else \if#1b\vbox \else \vcenter \fi\fi
+  //   \bgroup\Let@\restore@math@cr
+  //   \ifinany@\else\openup\jot\fi\ialign
+  //   \bgroup\hfil\strut@$\m@th\displaystyle##$\hfil\crcr
+  return {
+    colFormat: [{
+      gap: .25
+    }, {
+      align: 'c'
+    }, {
+      gap: 0
+    }],
+    jot: .3
+  };
+}); // defineEnvironment('cardinality', '', {}, function() {
+//     const result = {};
+//     result.mathstyle = 'textstyle';
+//     result.lFence = '|';
+//     result.rFence = '|';
+//     return result;
+// });
+
+defineEnvironment(['matrix', 'pmatrix', 'bmatrix', 'Bmatrix', 'vmatrix', 'Vmatrix', 'smallmatrix', 'matrix*', 'pmatrix*', 'bmatrix*', 'Bmatrix*', 'vmatrix*', 'Vmatrix*', 'smallmatrix*'], '[columns:colspec]', {}, function (name, args) {
+  // From amstex.sty:
+  // \def\matrix{\hskip -\arraycolsep\array{*\c@MaxMatrixCols c}}
+  // \def\endmatrix{\endarray \hskip -\arraycolsep}
+  var result = {};
+  result.mathstyle = 'textstyle';
+
+  switch (name) {
+    case 'pmatrix':
+    case 'pmatrix*':
+      result.lFence = '(';
+      result.rFence = ')';
+      break;
+
+    case 'bmatrix':
+    case 'bmatrix*':
+      result.lFence = '[';
+      result.rFence = ']';
+      break;
+
+    case 'Bmatrix':
+    case 'Bmatrix*':
+      result.lFence = '\\lbrace';
+      result.rFence = '\\rbrace';
+      break;
+
+    case 'vmatrix':
+    case 'vmatrix*':
+      result.lFence = '\\vert';
+      result.rFence = '\\vert';
+      break;
+
+    case 'Vmatrix':
+    case 'Vmatrix*':
+      result.lFence = '\\Vert';
+      result.rFence = '\\Vert';
+      break;
+
+    case 'smallmatrix':
+    case 'smallmatrix*':
+      result.mathstyle = 'scriptstyle';
+      break;
+
+    case 'matrix':
+    case 'matrix*':
+      // Specifying a fence, even a null fence,
+      // will prevent the insertion of an initial and final gap
+      result.lFence = '.';
+      result.rFence = '.';
+      break;
+
+    default:
+  }
+
+  result.colFormat = args[0] || [{
+    align: 'c'
+  }, {
+    align: 'c'
+  }, {
+    align: 'c'
+  }, {
+    align: 'c'
+  }, {
+    align: 'c'
+  }, {
+    align: 'c'
+  }, {
+    align: 'c'
+  }, {
+    align: 'c'
+  }, {
+    align: 'c'
+  }, {
+    align: 'c'
+  }];
+  return result;
+});
+defineEnvironment('cases', '', {}, function () {
+  // From amstex.sty:
+  // \def\cases{\left\{\def\arraystretch{1.2}\hskip-\arraycolsep
+  //   \array{l@{\quad}l}}
+  // \def\endcases{\endarray\hskip-\arraycolsep\right.}
+  // From amsmath.dtx
+  // \def\env@cases{%
+  //   \let\@ifnextchar\new@ifnextchar
+  //   \left\lbrace
+  //   \def\arraystretch{1.2}%
+  //   \array{@{}l@{\quad}l@{}}%
+  return {
+    arraystretch: 1.2,
+    lFence: '\\lbrace',
+    rFence: '.',
+    colFormat: [{
+      align: 'l'
+    }, {
+      gap: 1
+    }, {
+      align: 'l'
+    }]
+  };
+});
+defineEnvironment('theorem', '', {}, function () {
+  return {};
+});
+defineEnvironment('center', '', {}, function () {
+  return {
+    colFormat: [{
+      align: 'c'
+    }]
+  };
+});
+category = ''; // Simple characters allowed in math mode
+
+defineSymbols('0123456789/@.');
+defineSymbolRange(0x0041, 0x005A); // a-z
+
+defineSymbolRange(0x0061, 0x007A); // A-Z
+
+category = 'Trigonometry';
+defineFunction(['\\arcsin', '\\arccos', '\\arctan', '\\arctg', '\\arcctg', '\\arg', '\\ch', '\\cos', '\\cosec', '\\cosh', '\\cot', '\\cotg', '\\coth', '\\csc', '\\ctg', '\\cth', '\\sec', '\\sin', '\\sinh', '\\sh', '\\tan', '\\tanh', '\\tg', '\\th'], '', null, function (name) {
+  return {
+    type: 'mop',
+    limits: 'nolimits',
+    symbol: false,
+    isFunction: true,
+    body: name.slice(1),
+    baseFontFamily: 'cmr'
+  };
+});
+frequency(SUPERCOMMON, '\\cos', '\\sin', '\\tan');
+frequency(UNCOMMON, '\\arcsin', '\\arccos', '\\arctan', '\\arctg', '\\arcctg', '\\arcsec', '\\arccsc');
+frequency(UNCOMMON, '\\arsinh', '\\arccosh', '\\arctanh', '\\arcsech', '\\arccsch');
+frequency(UNCOMMON, '\\arg', '\\ch', '\\cosec', '\\cosh', '\\cot', '\\cotg', '\\coth', '\\csc', '\\ctg', '\\cth', '\\lg', '\\lb', '\\sec', '\\sinh', '\\sh', '\\tanh', '\\tg', '\\th');
+category = 'Functions';
+defineFunction(['\\deg', '\\dim', '\\exp', '\\hom', '\\ker', '\\lb', '\\lg', '\\ln', '\\log'], '', null, function (name) {
+  return {
+    type: 'mop',
+    limits: 'nolimits',
+    symbol: false,
+    isFunction: true,
+    body: name.slice(1),
+    baseFontFamily: 'cmr'
+  };
+});
+frequency(SUPERCOMMON, '\\ln', '\\log', '\\exp');
+frequency(292, '\\hom');
+frequency(COMMON, '\\dim');
+frequency(COMMON, '\\ker', '\\deg'); // >2,000
+
+defineFunction(['\\lim', '\\mod'], '', null, function (name) {
+  return {
+    type: 'mop',
+    limits: 'limits',
+    symbol: false,
+    body: name.slice(1),
+    baseFontFamily: 'cmr'
+  };
+});
+defineFunction(['\\det', '\\max', '\\min'], '', null, function (name) {
+  return {
+    type: 'mop',
+    limits: 'limits',
+    symbol: false,
+    isFunction: true,
+    body: name.slice(1),
+    baseFontFamily: 'cmr'
+  };
+});
+frequency(SUPERCOMMON, '\\lim');
+frequency(COMMON, '\\det');
+frequency(COMMON, '\\mod');
+frequency(COMMON, '\\min');
+frequency(COMMON, '\\max');
+category = 'Decoration'; // A box of the width and height
+
+defineFunction('\\rule', '[raise:dimen]{width:dimen}{thickness:dimen}', null, function (name, args) {
+  return {
+    type: 'rule',
+    shift: args[0],
+    width: args[1],
+    height: args[2]
+  };
+});
+defineFunction('\\color', '{:color}', {
+  allowedInText: true
+}, function (_name, args) {
+  return {
+    color: args[0]
+  };
+}); // From the xcolor package.
+// As per xcolor, this command does not set the mode to text
+// (unlike what its name might suggest)
+
+defineFunction('\\textcolor', '{:color}{content:auto*}', {
+  allowedInText: true
+}, function (_name, args) {
+  return {
+    color: args[0]
+  };
+});
+frequency(3, '\\textcolor'); // An overline
+
+defineFunction('\\overline', '{:auto}', null, function (name, args) {
+  return {
+    type: 'line',
+    position: 'overline',
+    skipBoundary: true,
+    body: args[0]
+  };
+});
+frequency(COMMON, '\\overline'); // > 2,000
+
+defineFunction("\\underline", '{:auto}', null, function (name, args) {
+  return {
+    type: 'line',
+    position: 'underline',
+    skipBoundary: true,
+    body: args[0]
+  };
+});
+frequency(COMMON, "\\underline"); // > 2,000
+
+defineFunction('\\overset', '{annotation:auto}{symbol:auto}', null, function (name, args) {
+  return {
+    type: 'overunder',
+    overscript: args[0],
+    skipBoundary: true,
+    body: args[1]
+  };
+});
+frequency(COMMON, '\\overset'); // > 2,000
+
+defineFunction("\\underset", '{annotation:auto}{symbol:auto}', null, function (name, args) {
+  return {
+    type: 'overunder',
+    underscript: args[0],
+    skipBoundary: true,
+    body: args[1]
+  };
+});
+frequency(COMMON, "\\underset"); // > 2,000
+
+defineFunction(['\\stackrel', '\\stackbin'], '{annotation:auto}{symbol:auto}', null, function (name, args) {
+  return {
+    type: 'overunder',
+    overscript: args[0],
+    skipBoundary: true,
+    body: args[1],
+    mathtype: name === '\\stackrel' ? 'mrel' : 'mbin'
+  };
+});
+frequency(COMMON, '\\stackrel'); // > 2,000
+
+frequency(0, '\\stackbin');
+defineFunction('\\rlap', '{:auto}', null, function (name, args) {
+  return {
+    type: 'overlap',
+    align: 'right',
+    skipBoundary: true,
+    body: args[0]
+  };
+});
+frequency(270, '\\rlap');
+defineFunction('\\llap', '{:auto}', null, function (name, args) {
+  return {
+    type: 'overlap',
+    align: 'left',
+    skipBoundary: true,
+    body: args[0]
+  };
+});
+frequency(18, '\\llap');
+defineFunction('\\mathrlap', '{:auto}', null, function (name, args) {
+  return {
+    type: 'overlap',
+    mode: 'math',
+    align: 'right',
+    skipBoundary: true,
+    body: args[0]
+  };
+});
+frequency(CRYPTIC, '\\mathrlap');
+defineFunction('\\mathllap', '{:auto}', null, function (name, args) {
+  return {
+    type: 'overlap',
+    mode: 'math',
+    align: 'left',
+    skipBoundary: true,
+    body: args[0]
+  };
+});
+frequency(CRYPTIC, '\\mathllap'); // Can be preceded by e.g. '\fboxsep=4pt' (also \fboxrule)
+// Note:
+// - \boxed: sets content in displaystyle mode (@todo: should change type of argument)
+//      equivalent to \fbox{$$<content>$$}
+// - \fbox: sets content in 'auto' mode (frequency 777)
+// - \framebox[<width>][<alignment>]{<content>} (<alignment> := 'c'|'t'|'b' (center, top, bottom) (frequency 28)
+// @todo
+
+defineFunction('\\boxed', '{content:math}', null, function (name, args) {
+  return {
+    type: 'box',
+    framecolor: 'black',
+    skipBoundary: true,
+    body: args[0]
+  };
+});
+frequency(1236, '\\boxed');
+defineFunction('\\colorbox', '{background-color:color}{content:auto}', {
+  allowedInText: true
+}, function (name, args) {
+  return {
+    type: 'box',
+    backgroundcolor: args[0],
+    skipBoundary: true,
+    body: args[1]
+  };
+});
+frequency(CRYPTIC, '\\colorbox');
+defineFunction('\\fcolorbox', '{frame-color:color}{background-color:color}{content:auto}', {
+  allowedInText: true
+}, function (name, args) {
+  return {
+    type: 'box',
+    framecolor: args[0],
+    backgroundcolor: args[1],
+    skipBoundary: true,
+    body: args[2]
+  };
+});
+frequency(CRYPTIC, '\\fcolorbox'); // \bbox, MathJax extension
+// The first argument is a CSS border property shorthand, e.g.
+// \bbox[red], \bbox[5px,border:2px solid red]
+// The MathJax syntax is
+// arglist ::= <arg>[,<arg>[,<arg>]]
+// arg ::= [<background:color>|<padding:dimen>|<style>]
+// style ::= 'border:' <string>
+
+defineFunction('\\bbox', '[:bbox]{body:auto}', {
+  allowedInText: true
+}, function (name, args) {
+  if (args[0]) {
+    return {
+      type: 'box',
+      padding: args[0].padding,
+      border: args[0].border,
+      backgroundcolor: args[0].backgroundcolor,
+      skipBoundary: true,
+      body: args[1]
+    };
+  }
+
+  return {
+    type: 'box',
+    skipBoundary: true,
+    body: args[1]
+  };
+});
+frequency(CRYPTIC, '\\bbox'); // \enclose, a MathJax extension mapping to the MathML `menclose` tag.
+// The first argument is a comma delimited list of notations, as defined
+// here: https://developer.mozilla.org/en-US/docs/Web/MathML/Element/menclose
+// The second, optional, specifies the style to use for the notations.
+
+defineFunction('\\enclose', '{notation:string}[style:string]{body:auto}', null, function (name, args) {
+  var notations = args[0] || [];
+  var result = {
+    type: 'enclose',
+    strokeColor: 'currentColor',
+    strokeWidth: 1,
+    strokeStyle: 'solid',
+    backgroundcolor: 'transparent',
+    padding: 'auto',
+    shadow: 'auto',
+    captureSelection: true,
+    // Do not let children be selected
+    body: args[2] // Extract info from style string
+
+  };
+
+  if (args[1]) {
+    // Split the string by comma delimited sub-strings, ignoring commas
+    // that may be inside (). For example"x, rgb(a, b, c)" would return
+    // ['x', 'rgb(a, b, c)']
+    var styles = args[1].split(/,(?![^(]*\)(?:(?:[^(]*\)){2})*[^"]*$)/);
+    var _iteratorNormalCompletion5 = true;
+    var _didIteratorError5 = false;
+    var _iteratorError5 = undefined;
+
+    try {
+      for (var _iterator5 = styles[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
+        var s = _step5.value;
+        var shorthand = s.match(/\s*(\S+)\s+(\S+)\s+(.*)/);
+
+        if (shorthand) {
+          result.strokeWidth = _fontMetrics.default.toPx(shorthand[1], 'px');
+
+          if (!isFinite(result.strokeWidth)) {
+            result.strokeWidth = 1;
+          }
+
+          result.strokeStyle = shorthand[2];
+          result.strokeColor = shorthand[3];
+        } else {
+          var attribute = s.match(/\s*([a-z]*)\s*=\s*"(.*)"/);
+
+          if (attribute) {
+            if (attribute[1] === 'mathbackground') {
+              result.backgroundcolor = attribute[2];
+            } else if (attribute[1] === 'mathcolor') {
+              result.strokeColor = attribute[2];
+            } else if (attribute[1] === 'padding') {
+              result.padding = _fontMetrics.default.toPx(attribute[2], 'px');
+            } else if (attribute[1] === 'shadow') {
+              result.shadow = attribute[2];
+            }
+          }
+        }
+      }
+    } catch (err) {
+      _didIteratorError5 = true;
+      _iteratorError5 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
+          _iterator5.return();
+        }
+      } finally {
+        if (_didIteratorError5) {
+          throw _iteratorError5;
+        }
+      }
+    }
+
+    if (result.strokeStyle === 'dashed') {
+      result.svgStrokeStyle = '5,5';
+    } else if (result.strokeStyle === 'dotted') {
+      result.svgStrokeStyle = '1,5';
+    }
+  }
+
+  result.borderStyle = result.strokeWidth + 'px ' + result.strokeStyle + ' ' + result.strokeColor; // Normalize the list of notations.
+
+  notations = notations.toString().split(/[, ]/).filter(function (v) {
+    return v.length > 0;
+  }).map(function (v) {
+    return v.toLowerCase();
+  });
+  result.notation = {};
+  var _iteratorNormalCompletion6 = true;
+  var _didIteratorError6 = false;
+  var _iteratorError6 = undefined;
+
+  try {
+    for (var _iterator6 = notations[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
+      var notation = _step6.value;
+      result.notation[notation] = true;
+    }
+  } catch (err) {
+    _didIteratorError6 = true;
+    _iteratorError6 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
+        _iterator6.return();
+      }
+    } finally {
+      if (_didIteratorError6) {
+        throw _iteratorError6;
+      }
+    }
+  }
+
+  if (result.notation['updiagonalarrow']) result.notation['updiagonalstrike'] = false;
+
+  if (result.notation['box']) {
+    result.notation['left'] = false;
+    result.notation['right'] = false;
+    result.notation['bottom'] = false;
+    result.notation['top'] = false;
+  }
+
+  return result;
+});
+frequency(CRYPTIC, '\\enclose');
+defineFunction('\\cancel', '{body:auto}', null, function (name, args) {
+  return {
+    type: 'enclose',
+    strokeColor: 'currentColor',
+    strokeWidth: 1,
+    strokeStyle: 'solid',
+    borderStyle: '1px solid currentColor',
+    backgroundcolor: 'transparent',
+    padding: 'auto',
+    shadow: 'auto',
+    notation: {
+      "updiagonalstrike": true
+    },
+    body: args[0]
+  };
+});
+defineFunction('\\bcancel', '{body:auto}', null, function (name, args) {
+  return {
+    type: 'enclose',
+    strokeColor: 'currentColor',
+    strokeWidth: 1,
+    strokeStyle: 'solid',
+    borderStyle: '1px solid currentColor',
+    backgroundcolor: 'transparent',
+    padding: 'auto',
+    shadow: 'auto',
+    notation: {
+      "downdiagonalstrike": true
+    },
+    body: args[0]
+  };
+});
+defineFunction('\\xcancel', '{body:auto}', null, function (name, args) {
+  return {
+    type: 'enclose',
+    strokeColor: 'currentColor',
+    strokeWidth: 1,
+    strokeStyle: 'solid',
+    borderStyle: '1px solid currentColor',
+    backgroundcolor: 'transparent',
+    padding: 'auto',
+    shadow: 'auto',
+    notation: {
+      "updiagonalstrike": true,
+      "downdiagonalstrike": true
+    },
+    body: args[0]
+  };
+});
+frequency(CRYPTIC, '\\cancel', '\\bcancel', '\\xcancel');
+category = 'Styling'; // Size
+
+defineFunction(['\\tiny', '\\scriptsize', '\\footnotesize', '\\small', '\\normalsize', '\\large', '\\Large', '\\LARGE', '\\huge', '\\Huge'], '', {
+  allowedInText: true
+}, function (name, _args) {
+  return {
+    fontSize: {
+      'tiny': 'size1',
+      'scriptsize': 'size2',
+      'footnotesize': 'size3',
+      'small': 'size4',
+      'normalsize': 'size5',
+      'large': 'size6',
+      'Large': 'size7',
+      'LARGE': 'size8',
+      'huge': 'size9',
+      'Huge': 'size10'
+    }[name.slice(1)]
+  };
+}); // SERIES: weight
+
+defineFunction('\\fontseries', '{:text}', {
+  allowedInText: true
+}, function (_name, args) {
+  return {
+    fontSeries: parseArgAsString(args[0])
+  };
+});
+defineFunction('\\bf', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontSeries: 'b'
+  };
+});
+defineFunction('\\bm', '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontSeries: 'b'
+  };
+}); // Note: switches to math mode
+
+defineFunction('\\bold', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'math',
+    fontSeries: 'b'
+  };
+});
+defineFunction(['\\mathbf', '\\boldsymbol'], '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'math',
+    fontSeries: 'b',
+    fontShape: 'n'
+  };
+});
+defineFunction('\\bfseries', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontSeries: 'b'
+  };
+});
+defineFunction('\\textbf', '{:text*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontSeries: 'b'
+  };
+});
+defineFunction('\\mathmd', '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'math',
+    fontSeries: 'm',
+    fontShape: 'n'
+  };
+});
+defineFunction('\\mdseries', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontSeries: 'm'
+  };
+});
+defineFunction('\\textmd', '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontSeries: 'm'
+  };
+}); // @todo \textlf
+// SHAPE: italic, small caps
+
+defineFunction('\\fontshape', '{:text}', {
+  allowedInText: true
+}, function (_name, args) {
+  return {
+    fontShape: parseArgAsString(args[0])
+  };
+});
+defineFunction('\\it', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontShape: 'it'
+  };
+});
+defineFunction('\\mathit', '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'math',
+    fontSeries: 'm',
+    fontShape: 'it'
+  };
+});
+defineFunction("\\upshape", '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontShape: 'n'
+  };
+});
+defineFunction('\\textup', '{:text*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontShape: 'n'
+  };
+});
+defineFunction('\\textit', '{:text*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontShape: 'it'
+  };
+});
+defineFunction('\\slshape', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontShape: 'sl'
+  };
+});
+defineFunction('\\textsl', '{:text*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontShape: 'sl'
+  };
+}); // Small caps (switches to text mode)
+
+defineFunction('\\scshape', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'text',
+    fontShape: 'sc'
+  };
+});
+defineFunction('\\textsc', '{:text*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontShape: 'sc'
+  };
+}); // FONT FAMILY: Fraktur, Calligraphic, ...
+
+defineFunction('\\fontfamily', '{:text}', {
+  allowedInText: true
+}, function (_name, args) {
+  return {
+    fontFamily: parseArgAsString(args[0])
+  };
+});
+defineFunction('\\mathrm', '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'math',
+    fontFamily: 'cmr',
+    fontSeries: 'm',
+    fontShape: 'n'
+  };
+});
+defineFunction('\\rmfamily', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontFamily: 'cmr'
+  };
+});
+defineFunction('\\textrm', '{:text*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontFamily: 'cmr'
+  };
+});
+defineFunction('\\mathsf', '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'math',
+    baseFontFamily: 'cmss',
+    fontSeries: 'm',
+    fontShape: 'n'
+  };
+});
+defineFunction('\\sffamily', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontFamily: 'cmss'
+  };
+});
+defineFunction('\\textsf', '{:text*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontFamily: 'cmss'
+  };
+});
+defineFunction('\\mathtt', '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'math',
+    baseFontFamily: 'cmtt',
+    fontSeries: 'm',
+    fontShape: 'n'
+  };
+});
+defineFunction('\\ttfamily', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontFamily: 'cmtt'
+  };
+});
+defineFunction('\\texttt', '{:text*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontFamily: 'cmtt'
+  };
+});
+defineFunction(['\\Bbb', '\\mathbb'], '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'math',
+    baseFontFamily: 'bb'
+  };
+});
+defineFunction(['\\frak', '\\mathfrak'], '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    baseFontFamily: 'frak'
+  };
+});
+defineFunction('\\mathcal', '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'math',
+    baseFontFamily: 'cal',
+    fontSeries: 'm',
+    fontShape: 'n'
+  };
+});
+defineFunction('\\mathscr', '{:math*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    mode: 'math',
+    baseFontFamily: 'scr',
+    fontSeries: 'm',
+    fontShape: 'n'
+  };
+});
+frequency(SUPERCOMMON, '\\mathbb');
+frequency(1081, '\\Bbb');
+frequency(0, '\\mathcal');
+frequency(COMMON, '\\mathfrak');
+frequency(271, '\\frak');
+frequency(COMMON, '\\mathscr');
+frequency(UNCOMMON, '\\mathsf');
+frequency(COMMON, '\\mathtt');
+frequency(COMMON, '\\boldsymbol'); // frequency(780, '\\tt');
+// @todo: family could be 'none' or 'default'
+// "normal" font of the body text, not necessarily roman
+
+defineFunction('\\textnormal', '{:text*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    fontFamily: 'cmr',
+    fontShape: 'n',
+    fontSeries: 'n'
+  };
+}); // Rough synomym for \text{}
+
+/*
+An \mbox within math mode does not use the current math font; rather it uses
+the typeface of the surrounding running text.
+*/
+
+defineFunction('\\mbox', '{:text*}', null, function (_name, _args) {
+  return {
+    fontFamily: 'cmr'
+  };
+});
+defineFunction('\\text', '{:text*}', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {};
+});
+/* A MathJax extension: assign a class to the element */
+
+defineFunction('\\class', '{name:text}{content:auto*}', {
+  allowedInText: true
+}, function (_name, args) {
+  return {
+    cssClass: parseArgAsString(args[0])
+  };
+});
+/* A MathJax extension: assign an ID to the element */
+
+defineFunction('\\cssId', '{id:text}{content:auto}', {
+  allowedInText: true
+}, function (_name, args) {
+  return {
+    cssId: parseArgAsString(args[0]),
+    body: args[1],
+    type: 'group'
+  };
+});
+/* Note: in TeX, \em is restricted to text mode. We extend it to math */
+
+defineFunction('\\em', '', {
+  allowedInText: true
+}, function (_name, _args) {
+  return {
+    cssClass: 'ML__emph',
+    type: 'group'
+  };
+});
+/* Note: in TeX, \emph is restricted to text mode. We extend it to math */
+
+defineFunction('\\emph', '{:auto}', {
+  allowedInText: true
+}, function (_name, args) {
+  return {
+    cssClass: 'ML__emph',
+    body: args[0],
+    type: 'group',
+    skipBoundary: true
+  };
+});
+frequency(COMMON, '\\textrm');
+frequency(COMMON, '\\textit');
+frequency(COMMON, '\\textsf');
+frequency(COMMON, '\\texttt');
+frequency(433, '\\textnormal');
+frequency(COMMON, '\\textbf');
+frequency(421, '\\textup');
+frequency(819, '\\emph');
+frequency(49, '\\em');
+category = 'Operators'; // Root
+
+defineFunction('\\sqrt', '[index:auto]{radicand:auto}', null, function (name, args) {
+  return {
+    type: 'surd',
+    body: args[1],
+    index: args[0]
+  };
+});
+frequency(SUPERCOMMON, '\\sqrt');
+category = 'Fractions'; // Fractions
+
+defineFunction(['\\frac', '\\dfrac', '\\tfrac', '\\cfrac', '\\binom', '\\dbinom', '\\tbinom'], '{numerator}{denominator}', null, function (name, args) {
+  var result = {
+    type: 'genfrac',
+    numer: args[0],
+    denom: args[1],
+    mathstyle: 'auto'
+  };
+
+  switch (name) {
+    case '\\dfrac':
+    case '\\frac':
+    case '\\tfrac':
+    case '\\cfrac':
+      result.hasBarLine = true;
+      break;
+
+    case '\\\\atopfrac':
+      result.hasBarLine = false;
+      break;
+
+    case '\\dbinom':
+    case '\\binom':
+    case '\\tbinom':
+      result.hasBarLine = false;
+      result.leftDelim = '(';
+      result.rightDelim = ')';
+      break;
+  }
+
+  switch (name) {
+    case '\\dfrac':
+    case '\\dbinom':
+      result.mathstyle = 'displaystyle';
+      break;
+
+    case '\\tfrac':
+    case '\\tbinom':
+      result.mathstyle = 'textstyle';
+      break;
+  }
+
+  if (name === '\\cfrac') {
+    result.continuousFraction = true;
+  }
+
+  return result;
+});
+/* \\substack: frequency 16 */
+
+/*
+\over = \above 0.4pt
+\atop = \above 0pt
+\choose = \atopwithdelims()
+*/
+// infix commands:
+// {above}\atop{below} --> \genfrac{}{}{0pt}{above}{below}
+// {above}\atopwithdelims{leftdelim}{rightdelim}{below} --> \genfrac{leftdelim}{rightdelim}{0pt}{0/1/2/3}{above}{below}
+//  Note: 0/1/2/3 -> displaystyle, textstyle, scriptstyle, scriptscriptstyle
+// \atopwithdelimiters
+// a\above 0.5pt b               -->
+// \abovewithdelims
+// \choose              --> \binom
+// \choose = \atopwithdelims()          INFIX
+// \def\brack{\atopwithdelims[]}        INFIX
+// \def\brace{\atopwithdelims\{\}}      INFIX
+// '\\above', /* {dim} 122 */
+// '\\overwithdelims' /* {leftdelim}{rightdelim} w/ barline 15 */,
+// '\\atopwithdelims' /* {leftdelim}{rightdelim} no barline 0 */,
+// '\\atop' /* nodelims, no barline 0 */,
+// '\\brack', '\\brace' like \choose, but
+//      with braces and brackets fences. 0 usage in latexsearch */
+
+defineFunction(['\\over'
+/* 21 */
+, '\\atop'
+/* 12 */
+, '\\choose'
+/* 1968 */
+], '', {
+  infix: true
+}, function (name, args) {
+  var numer = args[0];
+  var denom = args[1];
+  var hasBarLine = false;
+  var leftDelim = null;
+  var rightDelim = null;
+
+  switch (name) {
+    case '\\atop':
+      break;
+
+    case '\\over':
+      hasBarLine = true;
+      break;
+
+    case '\\choose':
+      hasBarLine = false;
+      leftDelim = '(';
+      rightDelim = ')';
+      break;
+
+    default:
+      throw new Error('Unrecognized genfrac command');
+  }
+
+  return {
+    type: 'genfrac',
+    numer: numer,
+    denom: denom,
+    hasBarLine: hasBarLine,
+    leftDelim: leftDelim,
+    rightDelim: rightDelim,
+    mathstyle: 'auto'
+  };
+});
+frequency(21, '\\over');
+frequency(12, '\\atop');
+frequency(1968, '\\choose');
+defineFunction(['\\overwithdelims'
+/* 21 */
+, '\\atopwithdelims'
+/* COMMON */
+], '{left-delim:delim}{right-delim:delim}', {
+  infix: true
+}, function (name, args) {
+  return {
+    type: 'genfrac',
+    numer: args[0],
+    denom: args[1],
+    hasBarLine: false,
+    leftDelim: args[2],
+    rightDelim: args[3],
+    mathstyle: 'auto'
+  };
+});
+frequency(15, '\\overwithdelims');
+frequency(COMMON, '\\atopwithdelims'); // frequency(COMMON, '\\frac');
+// frequency(UNCOMMON, '\\binom');
+// frequency(RARE, '\\dfrac', '\\tfrac', '\\dbinom', '\\tbinom');
+// Slashed package
+
+/*
+defineFunction('\\slashed'
+*/
+
+category = 'Fractions';
+defineFunction('\\pdiff', '{numerator}{denominator}', null, function (_funcname, args) {
+  return {
+    type: 'genfrac',
+    numer: args[0],
+    denom: args[1],
+    numerPrefix: "\u2202",
+    denomPrefix: "\u2202",
+    hasBarLine: true,
+    leftDelim: null,
+    rightDelim: null,
+    mathstyle: 'auto'
+  };
+}); // frequency(RARE, '\\pdiff');
+// Quantifiers
+
+category = 'Quantifiers';
+defineSymbol('\\forall', MAIN, MATHORD, "\u2200", SUPERCOMMON);
+defineSymbol('\\exists', MAIN, MATHORD, "\u2203", SUPERCOMMON);
+defineSymbol('\\nexists', AMS, MATHORD, "\u2204", SUPERCOMMON);
+defineSymbol('\\mid', MAIN, REL, "\u2223", COMMON);
+defineSymbol('\\top', MAIN, MATHORD, "\u22A4", RARE);
+defineSymbol('\\bot', MAIN, MATHORD, "\u22A5", RARE);
+category = 'Variable Sized Symbols'; // Limits, symbols
+
+defineFunction(['\\sum', '\\prod', '\\bigcup', '\\bigcap', '\\coprod', '\\bigvee', '\\bigwedge', '\\biguplus', '\\bigotimes', '\\bigoplus', '\\bigodot', '\\bigsqcup', '\\smallint', '\\intop'], '', null, function (name) {
+  return {
+    type: 'mop',
+    limits: 'auto',
+    symbol: true,
+    baseFontFamily: 'cmr',
+    body: {
+      'coprod': "\u2210",
+      'bigvee': "\u22C1",
+      'bigwedge': "\u22C0",
+      'biguplus': "\u2A04",
+      'bigcap': "\u22C2",
+      'bigcup': "\u22C3",
+      'intop': "\u222B",
+      'prod': "\u220F",
+      'sum': "\u2211",
+      'bigotimes': "\u2A02",
+      'bigoplus': "\u2A01",
+      'bigodot': "\u2A00",
+      'bigsqcup': "\u2A06",
+      'smallint': "\u222B"
+    }[name.slice(1)]
+  };
+}); // No limits, symbols
+
+defineFunction(['\\int', '\\iint', '\\iiint', '\\oint', '\\oiint', '\\oiiint', '\\intclockwise', '\\varointclockwise', '\\ointctrclockwise', '\\intctrclockwise'], '', null, function (name) {
+  return {
+    type: 'mop',
+    limits: 'nolimits',
+    symbol: true,
+    body: {
+      'int': "\u222B",
+      'iint': "\u222C",
+      'iiint': "\u222D",
+      'oint': "\u222E",
+      'oiint': "\u222F",
+      'oiiint': "\u2230",
+      'intclockwise': "\u2231",
+      'varointclockwise': "\u2232",
+      'ointctrclockwise': "\u2233",
+      'intctrclockwise': "\u2A11"
+    }[name.slice(1)]
+  };
+});
+frequency(SUPERCOMMON, '\\sum', '\\prod', '\\bigcap', '\\bigcup', '\\int');
+frequency(COMMON, '\\bigoplus', '\\smallint', '\\iint', '\\oint');
+frequency(RARE, '\\bigwedge', '\\bigvee');
+frequency(756, '\\coprod');
+frequency(723, '\\bigsqcup');
+frequency(1241, '\\bigotimes');
+frequency(150, '\\bigodot');
+frequency(174, '\\biguplus');
+frequency(878, '\\iiint');
+frequency(97, '\\intop'); // Misc Symbols
+
+category = 'Various';
+defineSymbol('\\sharp', MAIN, MATHORD, "\u266F", COMMON); // >2,000
+
+defineSymbol('\\flat', MAIN, MATHORD, "\u266D", 590);
+defineSymbol('\\natural', MAIN, MATHORD, "\u266E", 278);
+defineSymbol('\\#', MAIN, MATHORD, "#", RARE);
+defineSymbol('\\&', MAIN, MATHORD, "&", RARE);
+defineSymbol('\\clubsuit', MAIN, MATHORD, "\u2663", 172);
+defineSymbol('\\heartsuit', MAIN, MATHORD, "\u2661", ARCANE);
+defineSymbol('\\spadesuit', MAIN, MATHORD, "\u2660", ARCANE);
+defineSymbol('\\diamondsuit', MAIN, MATHORD, "\u2662", CRYPTIC); // defineSymbol( '\\cross',  MAIN,  MATHORD, '\uF4A0'); // NOTE: not a real TeX symbol, but Mathematica
+// defineSymbol( '\\transpose',  MAIN,  MATHORD, '\uF3C7'); // NOTE: not a real TeX symbol, but Mathematica
+// defineSymbol( '\\conjugate', 'conj'],  MAIN,  MATHORD, '\uF3C8'); // NOTE: not a real TeX symbol, but Mathematica
+// defineSymbol( '\\conjugatetranspose',  MAIN,  MATHORD, '\uF3C9'); // NOTE: not a real TeX symbol, but Mathematica
+// defineSymbol( '\\hermitianconjugate',  MAIN,  MATHORD, '\uF3CE'); // NOTE: not a real TeX symbol, but Mathematica
+
+defineSymbol('\\differencedelta', MAIN, REL, "\u2206", COMMON);
+category = 'Letters and Letter Like Forms';
+defineFunction("\\unicode", '{charcode:number}', null, function (name, args) {
+  var codepoint = parseInt(args[0]);
+  if (!isFinite(codepoint)) codepoint = 0x2753; // BLACK QUESTION MARK
+
+  return {
+    type: 'mord',
+    body: String.fromCodePoint(codepoint)
+  };
+});
+defineSymbol('\\backslash', MAIN, MATHORD, '\\');
+defineSymbol('?', MAIN, MATHORD, '?');
+defineSymbol('!', MAIN, MATHORD, '!');
+defineSymbol('\\nabla', MAIN, MATHORD, "\u2207", SUPERCOMMON);
+defineSymbol('\\partial', MAIN, MATHORD, "\u2202", SUPERCOMMON); // >2,000
+
+defineSymbol('\\ell', MAIN, MATHORD, "\u2113", COMMON); // >2,000
+
+defineSymbol('\\imaginaryI', MAIN, MATHORD, 'i'); // NOTE: not a real TeX symbol, but Mathematica
+// NOTE: set in math as per ISO 80000-2:2009.
+
+defineSymbol('\\imaginaryJ', MAIN, MATHORD, 'j'); // NOTE: not a real TeX symbol, but Mathematica
+// NOTE: set in math as per ISO 80000-2:2009.
+
+defineFunction(['\\Re', '\\Im'], '', null, function (name) {
+  return {
+    type: 'mop',
+    limits: 'nolimits',
+    symbol: false,
+    isFunction: true,
+    body: {
+      '\\Re': "\u211C",
+      '\\Im': "\u2111"
+    }[name],
+    baseFontFamily: 'frak'
+  };
+});
+defineSymbol('\\hbar', MAIN, MATHORD, "\u210F", COMMON); // >2,000
+
+defineSymbol('\\hslash', AMS, MATHORD, "\u210F", COMMON); // >2,000
+
+defineSymbol('\\differentialD', 'cmr', MATHORD, 'd'); // NOTE: not a real TeX symbol, but Mathematica
+
+defineSymbol('\\rd', 'cmr', MATHORD, 'd'); // NOTE: not a real TeX symbol, but used in ProofWiki
+// NOTE: set in math as per ISO 80000-2:2009.
+
+defineSymbol('\\capitalDifferentialD', 'cmr', MATHORD, 'D'); // NOTE: not a real TeX symbol, but Mathematica
+// NOTE: set in math as per ISO 80000-2:2009.
+
+defineSymbol('\\rD', 'cmr', MATHORD, 'D'); // NOTE: not a real TeX symbol
+
+defineSymbol('\\exponentialE', 'cmr', MATHORD, 'e'); // NOTE: not a real TeX symbol, but Mathematica
+// NOTE: set in math as per ISO 80000-2:2009.
+
+defineSymbol('\\Finv', AMS, MATHORD, "\u2132", 3);
+defineSymbol('\\Game', AMS, MATHORD, "\u2141", 1);
+defineSymbol('\\wp', MAIN, MATHORD, "\u2118", 1306);
+defineSymbol('\\eth', AMS, MATHORD, "\xF0", 77);
+defineSymbol('\\mho', AMS, MATHORD, "\u2127", 138);
+defineSymbol('\\Bbbk', AMS, MATHORD, "k");
+defineSymbol('\\doubleStruckCapitalN', 'bb', MATHORD, 'N'); // NOTE: Not TeX?
+
+defineSymbol('\\N', 'bb', MATHORD, 'N'); // NOTE: Check if standard Latex
+
+defineSymbol('\\doubleStruckCapitalR', 'bb', MATHORD, 'R'); // NOTE: Not TeX?
+
+defineSymbol('\\R', 'bb', MATHORD, 'R'); // NOTE: Check if standard Latex
+
+defineSymbol('\\doubleStruckCapitalQ', 'bb', MATHORD, 'Q'); // NOTE: Not TeX?
+
+defineSymbol('\\Q', 'bb', MATHORD, 'Q'); // NOTE: Check if standard Latex
+
+defineSymbol('\\doubleStruckCapitalC', 'bb', MATHORD, 'C'); // NOTE: Not TeX?
+
+defineSymbol('\\C', 'bb', MATHORD, 'C'); // NOTE: Check if standard Latex
+
+defineSymbol('\\doubleStruckCapitalZ', 'bb', MATHORD, 'Z'); // NOTE: Not TeX?
+
+defineSymbol('\\Z', 'bb', MATHORD, 'Z'); // NOTE: Check if standard Latex
+
+defineSymbol('\\doubleStruckCapitalP', 'bb', MATHORD, 'P'); // NOTE: Not TeX?
+
+defineSymbol('\\P', 'bb', MATHORD, 'P'); // NOTE: Check if standard Latex
+
+defineSymbol('\\scriptCapitalE', 'scr', MATHORD, 'E'); // NOTE: Not TeX?
+
+defineSymbol('\\scriptCapitalH', 'scr', MATHORD, 'H'); // NOTE: Not TeX?
+
+defineSymbol('\\scriptCapitalL', 'scr', MATHORD, 'L'); // NOTE: Not TeX?
+
+defineSymbol('\\gothicCapitalC', 'frak', MATHORD, 'C'); // NOTE: Not TeX?
+
+defineSymbol('\\gothicCapitalH', 'frak', MATHORD, 'H'); // NOTE: Not TeX?
+
+defineSymbol('\\gothicCapitalI', 'frak', MATHORD, 'I'); // NOTE: Not TeX?
+
+defineSymbol('\\gothicCapitalR', 'frak', MATHORD, 'R'); // NOTE: Not TeX?
+
+defineSymbol('\\pounds', MAIN, MATHORD, "\xA3", 509);
+defineSymbol('\\yen', AMS, MATHORD, "\xA5", 57);
+defineSymbol('\\euro', MAIN, MATHORD, "\u20AC", 4); // NOTE: not TeX built-in, but textcomp package
+// TODO Koppa, Stigma, Sampi
+// Math and Text
+
+category = 'Crosses';
+defineSymbol('\\textdagger', MAIN, BIN, "\u2020");
+defineSymbol('\\dagger', MAIN, BIN, "\u2020", COMMON); // >2000
+
+defineSymbol('\\dag', MAIN, BIN, "\u2020", COMMON); // >2000 results
+
+defineSymbol('\\ddag', MAIN, BIN, "\u2021", 500); // 500 results in latexsearch
+
+defineSymbol('\\textdaggerdbl', MAIN, BIN, "\u2021");
+defineSymbol('\\ddagger', MAIN, BIN, "\u2021", 353); // 353 results in latexsearch
+
+defineSymbol('\\maltese', AMS, MATHORD, "\u2720", 24); // Arrow Symbols
+
+category = 'Arrows';
+defineSymbol('\\longrightarrow', MAIN, REL, "\u27F6", SUPERCOMMON); // >2,000
+
+defineSymbol('\\rightarrow', MAIN, REL, "\u2192", SUPERCOMMON); // >2,000
+
+defineSymbol('\\Longrightarrow', MAIN, REL, "\u27F9", SUPERCOMMON); // See \\implies
+
+defineSymbol('\\Rightarrow', MAIN, REL, "\u21D2", SUPERCOMMON); // >2,000
+
+defineSymbol('\\longmapsto', MAIN, REL, "\u27FC", COMMON); // >2,000
+
+defineSymbol('\\mapsto', MAIN, REL, "\u21A6", COMMON); // >2,000
+
+defineSymbol('\\Longleftrightarrow', MAIN, REL, "\u27FA", COMMON); // >2,000
+
+defineSymbol('\\rightleftarrows', AMS, REL, "\u21C4", COMMON); // >2,000
+
+defineSymbol('\\leftarrow', MAIN, REL, "\u2190", COMMON); // >2,000
+
+defineSymbol('\\curvearrowleft', AMS, REL, "\u21B6", COMMON); // >2,000
+
+defineSymbol("\\uparrow", MAIN, REL, "\u2191", COMMON); // >2,000
+
+defineSymbol('\\downarrow', MAIN, REL, "\u2193", COMMON); // >2,000
+
+defineSymbol('\\hookrightarrow', MAIN, REL, "\u21AA", COMMON); // >2,000
+
+defineSymbol('\\rightharpoonup', MAIN, REL, "\u21C0", COMMON); // >2,000
+
+defineSymbol('\\rightleftharpoons', MAIN, REL, "\u21CC", COMMON); // >2,000
+
+defineSymbol('\\Leftarrow', MAIN, REL, "\u21D0", 1695);
+defineSymbol('\\longleftrightarrow', MAIN, REL, "\u27F7", 1599);
+defineSymbol('\\longleftarrow', MAIN, REL, "\u27F5", 878);
+defineSymbol('\\Longleftarrow', MAIN, REL, "\u27F8", 296);
+defineSymbol('\\searrow', MAIN, REL, "\u2198", 1609);
+defineSymbol('\\nearrow', MAIN, REL, "\u2197", 1301);
+defineSymbol('\\swarrow', MAIN, REL, "\u2199", 167);
+defineSymbol('\\nwarrow', MAIN, REL, "\u2196", 108);
+defineSymbol("\\Uparrow", MAIN, REL, "\u21D1", 257);
+defineSymbol('\\Downarrow', MAIN, REL, "\u21D3", 556);
+defineSymbol("\\updownarrow", MAIN, REL, "\u2195", 192);
+defineSymbol("\\Updownarrow", MAIN, REL, "\u21D5", 161);
+defineSymbol('\\hookleftarrow', MAIN, REL, "\u21A9", 115);
+defineSymbol('\\leftharpoonup', MAIN, REL, "\u21BC", 93);
+defineSymbol('\\leftharpoondown', MAIN, REL, "\u21BD", 42);
+defineSymbol('\\rightharpoondown', MAIN, REL, "\u21C1", 80);
+defineSymbol('\\leftrightarrows', AMS, REL, "\u21C6", 765);
+defineSymbol('\\dashrightarrow', AMS, REL, "\u21E2", 311);
+defineSymbol('\\dashleftarrow', AMS, REL, "\u21E0", 5);
+defineSymbol('\\leftleftarrows', AMS, REL, "\u21C7", 8);
+defineSymbol('\\Lleftarrow', AMS, REL, "\u21DA", 7);
+defineSymbol('\\twoheadleftarrow', AMS, REL, "\u219E", 32);
+defineSymbol('\\leftarrowtail', AMS, REL, "\u21A2", 25);
+defineSymbol('\\looparrowleft', AMS, REL, "\u21AB", 6);
+defineSymbol('\\leftrightharpoons', AMS, REL, "\u21CB", 205);
+defineSymbol('\\circlearrowleft', AMS, REL, "\u21BA", 105);
+defineSymbol('\\Lsh', AMS, REL, "\u21B0", 11);
+defineSymbol("\\upuparrows", AMS, REL, "\u21C8", 15);
+defineSymbol('\\downharpoonleft', AMS, REL, "\u21C3", 21);
+defineSymbol('\\multimap', AMS, REL, "\u22B8", 108);
+defineSymbol('\\leftrightsquigarrow', AMS, REL, "\u21AD", 31);
+defineSymbol('\\twoheadrightarrow', AMS, REL, "\u21A0", 835);
+defineSymbol('\\rightarrowtail', AMS, REL, "\u21A3", 195);
+defineSymbol('\\looparrowright', AMS, REL, "\u21AC", 37);
+defineSymbol('\\curvearrowright', AMS, REL, "\u21B7", 209);
+defineSymbol('\\circlearrowright', AMS, REL, "\u21BB", 63);
+defineSymbol('\\Rsh', AMS, REL, "\u21B1", 18);
+defineSymbol('\\downdownarrows', AMS, REL, "\u21CA", 6);
+defineSymbol("\\upharpoonright", AMS, REL, "\u21BE", 579);
+defineSymbol('\\downharpoonright', AMS, REL, "\u21C2", 39);
+defineSymbol('\\rightsquigarrow', AMS, REL, "\u21DD", 674);
+defineSymbol('\\leadsto', AMS, REL, "\u21DD", 709);
+defineSymbol('\\Rrightarrow', AMS, REL, "\u21DB", 62);
+defineSymbol('\\restriction', AMS, REL, "\u21BE", 29);
+defineSymbol("\\upharpoonleft", AMS, REL, "\u21BF", CRYPTIC);
+defineSymbol('\\rightrightarrows', AMS, REL, "\u21C9", CRYPTIC); // AMS Negated Arrows
+
+category = 'Negated Arrows';
+defineSymbol('\\nrightarrow', AMS, REL, "\u219B", 324);
+defineSymbol('\\nRightarrow', AMS, REL, "\u21CF", 107);
+defineSymbol('\\nleftrightarrow', AMS, REL, "\u21AE", 36);
+defineSymbol('\\nLeftrightarrow', AMS, REL, "\u21CE", 20);
+defineSymbol('\\nleftarrow', AMS, REL, "\u219A", 7);
+defineSymbol('\\nLeftarrow', AMS, REL, "\u21CD", 5); // AMS Negated Binary Relations
+
+category = 'Negated Relations';
+defineSymbol('\\nless', AMS, REL, "\u226E", 146);
+defineSymbol('\\nleqslant', AMS, REL, "\uE010", 58);
+defineSymbol('\\lneq', AMS, REL, "\u2A87", 54);
+defineSymbol('\\lneqq', AMS, REL, "\u2268", 36);
+defineSymbol('\\nleqq', AMS, REL, "\uE011", 18);
+defineSymbol("\\unlhd", AMS, BIN, "\u22B4", 253);
+defineSymbol("\\unrhd", AMS, BIN, "\u22B5", 66);
+defineSymbol('\\lvertneqq', AMS, REL, "\uE00C", 6);
+defineSymbol('\\lnsim', AMS, REL, "\u22E6", 4);
+defineSymbol('\\lnapprox', AMS, REL, "\u2A89", CRYPTIC);
+defineSymbol('\\nprec', AMS, REL, "\u2280", 71);
+defineSymbol('\\npreceq', AMS, REL, "\u22E0", 57);
+defineSymbol('\\precnsim', AMS, REL, "\u22E8", 4);
+defineSymbol('\\precnapprox', AMS, REL, "\u2AB9", 2);
+defineSymbol('\\nsim', AMS, REL, "\u2241", 40);
+defineSymbol('\\nshortmid', AMS, REL, "\uE006", 1);
+defineSymbol('\\nmid', AMS, REL, "\u2224", 417);
+defineSymbol('\\nvdash', AMS, REL, "\u22AC", 266);
+defineSymbol('\\nvDash', AMS, REL, "\u22AD", 405);
+defineSymbol('\\ngtr', AMS, REL, "\u226F", 90);
+defineSymbol('\\ngeqslant', AMS, REL, "\uE00F", 23);
+defineSymbol('\\ngeqq', AMS, REL, "\uE00E", 12);
+defineSymbol('\\gneq', AMS, REL, "\u2A88", 29);
+defineSymbol('\\gneqq', AMS, REL, "\u2269", 35);
+defineSymbol('\\gvertneqq', AMS, REL, "\uE00D", 6);
+defineSymbol('\\gnsim', AMS, REL, "\u22E7", 3);
+defineSymbol('\\gnapprox', AMS, REL, "\u2A8A", CRYPTIC);
+defineSymbol('\\nsucc', AMS, REL, "\u2281", 44);
+defineSymbol('\\nsucceq', AMS, REL, "\u22E1", CRYPTIC);
+defineSymbol('\\succnsim', AMS, REL, "\u22E9", 4);
+defineSymbol('\\succnapprox', AMS, REL, "\u2ABA", CRYPTIC);
+defineSymbol('\\ncong', AMS, REL, "\u2246", 128);
+defineSymbol('\\nshortparallel', AMS, REL, "\uE007", 6);
+defineSymbol('\\nparallel', AMS, REL, "\u2226", 54);
+defineSymbol('\\nVDash', AMS, REL, "\u22AF", 5);
+defineSymbol('\\nsupseteqq', AMS, REL, "\uE018", 1);
+defineSymbol('\\supsetneq', AMS, REL, "\u228B", 286);
+defineSymbol('\\varsupsetneq', AMS, REL, "\uE01B", 2);
+defineSymbol('\\supsetneqq', AMS, REL, "\u2ACC", 49);
+defineSymbol('\\varsupsetneqq', AMS, REL, "\uE019", 3);
+defineSymbol('\\nVdash', AMS, REL, "\u22AE", 179);
+defineSymbol('\\precneqq', AMS, REL, "\u2AB5", 11);
+defineSymbol('\\succneqq', AMS, REL, "\u2AB6", 3);
+defineSymbol('\\nsubseteqq', AMS, REL, "\uE016", 16); // AMS Misc
+
+category = 'Various';
+defineSymbol('\\checkmark', AMS, MATHORD, "\u2713", 1025);
+defineSymbol('\\diagup', AMS, MATHORD, "\u2571", 440);
+defineSymbol('\\diagdown', AMS, MATHORD, "\u2572", 175);
+defineSymbol('\\measuredangle', AMS, MATHORD, "\u2221", 271);
+defineSymbol('\\sphericalangle', AMS, MATHORD, "\u2222", 156);
+defineSymbol('\\backprime', AMS, MATHORD, "\u2035", 104);
+defineSymbol('\\backdoubleprime', AMS, MATHORD, "\u2036", CRYPTIC);
+category = 'Shapes';
+defineSymbol('\\ast', MAIN, BIN, "\u2217", SUPERCOMMON); // >2,000
+
+defineSymbol('\\star', MAIN, BIN, "\u22C6", COMMON); // >2,000
+
+defineSymbol('\\diamond', MAIN, BIN, "\u22C4", 1356);
+defineSymbol('\\Diamond', AMS, MATHORD, "\u25CA", 695);
+defineSymbol('\\lozenge', AMS, MATHORD, "\u25CA", 422);
+defineSymbol('\\blacklozenge', AMS, MATHORD, "\u29EB", 344);
+defineSymbol('\\bigstar', AMS, MATHORD, "\u2605", 168); // AMS Hebrew
+
+category = 'Hebrew';
+defineSymbol('\\aleph', MAIN, MATHORD, "\u2135", 1381);
+defineSymbol('\\beth', AMS, MATHORD, "\u2136", 54);
+defineSymbol('\\daleth', AMS, MATHORD, "\u2138", 43);
+defineSymbol('\\gimel', AMS, MATHORD, "\u2137", 36); // AMS Delimiters
+
+category = 'Fences';
+defineSymbol('\\lbrace', MAIN, OPEN, '{', SUPERCOMMON); // >2,000
+
+defineSymbol('\\rbrace', MAIN, CLOSE, '}', SUPERCOMMON); // >2,000
+
+defineSymbol('\\langle', MAIN, OPEN, "\u27E8", COMMON); // >2,000
+
+defineSymbol('\\rangle', MAIN, CLOSE, "\u27E9", COMMON);
+defineSymbol('\\lfloor', MAIN, OPEN, "\u230A", COMMON); // >2,000
+
+defineSymbol('\\rfloor', MAIN, CLOSE, "\u230B", COMMON); // >2,000
+
+defineSymbol('\\lceil', MAIN, OPEN, "\u2308", COMMON); // >2,000
+
+defineSymbol('\\rceil', MAIN, CLOSE, "\u2309", COMMON); // >2,000
+
+defineSymbol('\\vert', MAIN, MATHORD, "\u2223", SUPERCOMMON); // >2,000
+
+defineSymbol('\\mvert', MAIN, REL, "\u2223");
+defineSymbol('\\lvert', MAIN, OPEN, "\u2223", 496);
+defineSymbol('\\rvert', MAIN, CLOSE, "\u2223", 496);
+defineSymbol('\\|', MAIN, MATHORD, "\u2225");
+defineSymbol('\\Vert', MAIN, MATHORD, "\u2225", SUPERCOMMON); // >2,000
+
+defineSymbol('\\mVert', MAIN, MATHORD, "\u2225");
+defineSymbol('\\lVert', MAIN, OPEN, "\u2225", 287);
+defineSymbol('\\rVert', MAIN, CLOSE, "\u2225", CRYPTIC);
+defineSymbol('\\lbrack', MAIN, OPEN, '[', 574);
+defineSymbol('\\rbrack', MAIN, CLOSE, ']', 213);
+defineSymbol('\\{', MAIN, OPEN, '{');
+defineSymbol('\\}', MAIN, CLOSE, '}');
+defineSymbol('(', MAIN, OPEN, '(');
+defineSymbol(')', MAIN, CLOSE, ')');
+defineSymbol('[', MAIN, OPEN, '[');
+defineSymbol(']', MAIN, CLOSE, ']');
+defineSymbol("\\ulcorner", AMS, OPEN, "\u250C", 296);
+defineSymbol("\\urcorner", AMS, CLOSE, "\u2510", 310);
+defineSymbol('\\llcorner', AMS, OPEN, "\u2514", 137);
+defineSymbol('\\lrcorner', AMS, CLOSE, "\u2518", 199); // Large Delimiters
+
+defineSymbol('\\lgroup', MAIN, OPEN, "\u27EE", 24);
+defineSymbol('\\rgroup', MAIN, CLOSE, "\u27EF", 24);
+defineSymbol('\\lmoustache', MAIN, OPEN, "\u23B0", CRYPTIC);
+defineSymbol('\\rmoustache', MAIN, CLOSE, "\u23B1", CRYPTIC);
+defineFunction(['\\middle'], '{:delim}', null, function (name, args) {
+  return {
+    type: 'delim',
+    delim: args[0]
+  };
+});
+category = 'Sizing'; // Extra data needed for the delimiter parse function down below
+
+var delimiterSizes = {
+  '\\bigl': {
+    mclass: 'mopen',
+    size: 1
+  },
+  '\\Bigl': {
+    mclass: 'mopen',
+    size: 2
+  },
+  '\\biggl': {
+    mclass: 'mopen',
+    size: 3
+  },
+  '\\Biggl': {
+    mclass: 'mopen',
+    size: 4
+  },
+  '\\bigr': {
+    mclass: 'mclose',
+    size: 1
+  },
+  '\\Bigr': {
+    mclass: 'mclose',
+    size: 2
+  },
+  '\\biggr': {
+    mclass: 'mclose',
+    size: 3
+  },
+  '\\Biggr': {
+    mclass: 'mclose',
+    size: 4
+  },
+  '\\bigm': {
+    mclass: 'mrel',
+    size: 1
+  },
+  '\\Bigm': {
+    mclass: 'mrel',
+    size: 2
+  },
+  '\\biggm': {
+    mclass: 'mrel',
+    size: 3
+  },
+  '\\Biggm': {
+    mclass: 'mrel',
+    size: 4
+  },
+  '\\big': {
+    mclass: 'mord',
+    size: 1
+  },
+  '\\Big': {
+    mclass: 'mord',
+    size: 2
+  },
+  '\\bigg': {
+    mclass: 'mord',
+    size: 3
+  },
+  '\\Bigg': {
+    mclass: 'mord',
+    size: 4
+  }
+};
+defineFunction(['\\bigl', '\\Bigl', '\\biggl', '\\Biggl', '\\bigr', '\\Bigr', '\\biggr', '\\Biggr', '\\bigm', '\\Bigm', '\\biggm', '\\Biggm', '\\big', '\\Big', '\\bigg', '\\Bigg'], '{:delim}', null, function (name, args) {
+  return {
+    type: 'sizeddelim',
+    size: delimiterSizes[name].size,
+    cls: delimiterSizes[name].mclass,
+    delim: args[0]
+  };
+}); // Relations
+
+category = 'Relations';
+defineSymbol('=', MAIN, REL, '=', SUPERCOMMON);
+defineSymbol('\\ne', MAIN, REL, "\u2260", SUPERCOMMON); // >2,000
+
+defineSymbol('\\neq', MAIN, REL, "\u2260", COMMON); // >2,000
+// defineSymbol( '\\longequal',  MAIN,  REL, '\uF7D9');   // NOTE: Not TeXematica
+
+defineSymbol('<', MAIN, REL, '<', SUPERCOMMON); // >2,000
+
+defineSymbol('\\lt', MAIN, REL, '<', COMMON); // >2,000
+
+defineSymbol('>', MAIN, REL, '>', SUPERCOMMON); // >2,000
+
+defineSymbol('\\gt', MAIN, REL, '>', COMMON); // >2,000
+
+defineSymbol('\\le', MAIN, REL, "\u2264", COMMON); // >2,000
+
+defineSymbol('\\ge', MAIN, REL, "\u2265", COMMON); // >2,000
+
+defineSymbol('\\leqslant', AMS, REL, "\u2A7D", SUPERCOMMON); // > 2,000
+
+defineSymbol('\\geqslant', AMS, REL, "\u2A7E", SUPERCOMMON); // > 2,000
+
+defineSymbol('\\leq', MAIN, REL, "\u2264", COMMON); // >2,000
+
+defineSymbol('\\geq', MAIN, REL, "\u2265", COMMON); // >2,000
+
+defineSymbol('\\ll', MAIN, REL, "\u226A");
+defineSymbol('\\gg', MAIN, REL, "\u226B", COMMON); // >2,000
+
+defineSymbol('\\coloneq', MAIN, REL, "\u2254", 5);
+defineSymbol('\\measeq', MAIN, REL, "\u225D"); // MEASSURED BY
+
+defineSymbol('\\eqdef', MAIN, REL, "\u225E");
+defineSymbol('\\questeq', MAIN, REL, "\u225F"); // QUESTIONED EQUAL TO
+
+defineSymbol(':', MAIN, REL, ':');
+defineSymbol('\\cong', MAIN, REL, "\u2245", COMMON); // >2,000
+
+defineSymbol('\\equiv', MAIN, REL, "\u2261", COMMON); // >2,000
+
+defineSymbol('\\prec', MAIN, REL, "\u227A", COMMON); // >2,000
+
+defineSymbol('\\preceq', MAIN, REL, "\u2AAF", COMMON); // >2,000
+
+defineSymbol('\\succ', MAIN, REL, "\u227B", COMMON); // >2,000
+
+defineSymbol('\\succeq', MAIN, REL, "\u2AB0", 1916);
+defineSymbol('\\perp', MAIN, REL, "\u22A5", COMMON); // > 2,000
+
+defineSymbol('\\parallel', MAIN, REL, "\u2225", COMMON); // >2,000
+
+defineSymbol('\\propto', MAIN, REL, "\u221D", COMMON); // > 2,000
+
+defineSymbol('\\Colon', MAIN, REL, "\u2237");
+defineSymbol('\\smile', MAIN, REL, "\u2323", COMMON); // > 2,000
+
+defineSymbol('\\frown', MAIN, REL, "\u2322", COMMON); // > 2,000
+
+defineSymbol('\\sim', MAIN, REL, "\u223C", COMMON); // >2,000
+
+defineSymbol('\\gtrsim', AMS, REL, "\u2273", COMMON); // >2,000
+
+defineSymbol('\\approx', MAIN, REL, "\u2248", SUPERCOMMON); // >2,000
+
+defineSymbol('\\approxeq', AMS, REL, "\u224A", 147);
+defineSymbol('\\thickapprox', AMS, REL, "\u2248", 377);
+defineSymbol('\\lessapprox', AMS, REL, "\u2A85", 146);
+defineSymbol('\\gtrapprox', AMS, REL, "\u2A86", 95);
+defineSymbol('\\precapprox', AMS, REL, "\u2AB7", 50);
+defineSymbol('\\succapprox', AMS, REL, "\u2AB8", CRYPTIC);
+defineSymbol('\\thicksim', AMS, REL, "\u223C", 779);
+defineSymbol('\\succsim', AMS, REL, "\u227F", 251);
+defineSymbol('\\precsim', AMS, REL, "\u227E", 104);
+defineSymbol('\\backsim', AMS, REL, "\u223D", 251);
+defineSymbol('\\eqsim', AMS, REL, "\u2242", 62);
+defineSymbol('\\backsimeq', AMS, REL, "\u22CD", 91);
+defineSymbol('\\simeq', MAIN, REL, "\u2243", CRYPTIC);
+defineSymbol('\\lesssim', AMS, REL, "\u2272", CRYPTIC);
+defineSymbol('\\nleq', AMS, REL, "\u2270", 369);
+defineSymbol('\\ngeq', AMS, REL, "\u2271", 164);
+defineSymbol('\\smallsmile', AMS, REL, "\u2323", 31);
+defineSymbol('\\smallfrown', AMS, REL, "\u2322", 71);
+defineSymbol('\\bowtie', MAIN, REL, "\u22C8", 558);
+defineSymbol('\\asymp', MAIN, REL, "\u224D", 755);
+defineSymbol('\\sqsubseteq', MAIN, REL, "\u2291", 1255);
+defineSymbol('\\sqsupseteq', MAIN, REL, "\u2292", 183);
+defineSymbol('\\leqq', AMS, REL, "\u2266", 1356);
+defineSymbol('\\eqslantless', AMS, REL, "\u2A95", 15);
+defineSymbol('\\lll', AMS, REL, "\u22D8", 157);
+defineSymbol('\\lessgtr', AMS, REL, "\u2276", 281);
+defineSymbol('\\lesseqgtr', AMS, REL, "\u22DA", 134);
+defineSymbol('\\lesseqqgtr', AMS, REL, "\u2A8B", CRYPTIC);
+defineSymbol('\\risingdotseq', AMS, REL, "\u2253", 8);
+defineSymbol('\\fallingdotseq', AMS, REL, "\u2252", 99);
+defineSymbol('\\subseteqq', AMS, REL, "\u2AC5", 82);
+defineSymbol('\\Subset', AMS, REL, "\u22D0");
+defineSymbol('\\sqsubset', AMS, REL, "\u228F", 309);
+defineSymbol('\\preccurlyeq', AMS, REL, "\u227C", 549);
+defineSymbol('\\curlyeqprec', AMS, REL, "\u22DE", 14);
+defineSymbol('\\vDash', AMS, REL, "\u22A8", 646);
+defineSymbol('\\Vvdash', AMS, REL, "\u22AA", 20);
+defineSymbol('\\bumpeq', AMS, REL, "\u224F", 13);
+defineSymbol('\\Bumpeq', AMS, REL, "\u224E", 12);
+defineSymbol('\\geqq', AMS, REL, "\u2267", 972);
+defineSymbol('\\eqslantgtr', AMS, REL, "\u2A96", 13);
+defineSymbol('\\ggg', AMS, REL, "\u22D9", 127);
+defineSymbol('\\gtrless', AMS, REL, "\u2277", 417);
+defineSymbol('\\gtreqless', AMS, REL, "\u22DB", 190);
+defineSymbol('\\gtreqqless', AMS, REL, "\u2A8C", 91);
+defineSymbol('\\supseteqq', AMS, REL, "\u2AC6", 6);
+defineSymbol('\\Supset', AMS, REL, "\u22D1", 34);
+defineSymbol('\\sqsupset', AMS, REL, "\u2290", 71);
+defineSymbol('\\succcurlyeq', AMS, REL, "\u227D", 442);
+defineSymbol('\\curlyeqsucc', AMS, REL, "\u22DF", 10);
+defineSymbol('\\Vdash', AMS, REL, "\u22A9", 276);
+defineSymbol('\\shortmid', AMS, REL, "\u2223", 67);
+defineSymbol('\\shortparallel', AMS, REL, "\u2225", 17);
+defineSymbol('\\between', AMS, REL, "\u226C", 110);
+defineSymbol('\\pitchfork', AMS, REL, "\u22D4", 66);
+defineSymbol('\\varpropto', AMS, REL, "\u221D", 203);
+defineSymbol('\\backepsilon', AMS, REL, "\u220D", 176);
+defineSymbol('\\llless', AMS, REL, "\u22D8", CRYPTIC);
+defineSymbol('\\gggtr', AMS, REL, "\u22D9", CRYPTIC);
+defineSymbol('\\lhd', AMS, BIN, "\u22B2", 447);
+defineSymbol('\\rhd', AMS, BIN, "\u22B3", 338);
+defineSymbol('\\Join', MAIN, REL, "\u22C8", 35);
+defineSymbol('\\doteq', MAIN, REL, "\u2250", 1450);
+defineSymbol('\\doteqdot', AMS, REL, "\u2251", 60);
+defineSymbol('\\Doteq', AMS, REL, "\u2251", CRYPTIC);
+defineSymbol('\\eqcirc', AMS, REL, "\u2256", 6);
+defineSymbol('\\circeq', AMS, REL, "\u2257", 31);
+defineSymbol('\\lessdot', AMS, BIN, "\u22D6", 88);
+defineSymbol('\\gtrdot', AMS, BIN, "\u22D7", 45); // In TeX, '~' is a spacing command (non-breaking space).
+// However, '~' is used as an ASCII Math shortctut character, so define a \\~
+// command which maps to the '~' character
+
+defineSymbol('\\~', MAIN, REL, '~');
+category = 'Logic';
+defineSymbol('\\leftrightarrow', MAIN, REL, "\u2194", SUPERCOMMON); // >2,000
+
+defineSymbol('\\Leftrightarrow', MAIN, REL, "\u21D4", SUPERCOMMON); // >2,000
+// defineSymbol( '\\iff',  MAIN,  REL, '\\;\u27fa\\;', SUPERCOMMON);        // >2,000 Note: additional spaces around the arrows
+
+defineSymbol('\\to', MAIN, REL, "\u2192", SUPERCOMMON); // >2,000
+
+defineSymbol('\\models', MAIN, REL, "\u22A8", COMMON); // >2,000
+
+defineSymbol('\\vdash', MAIN, REL, "\u22A2", COMMON); // >2,000
+
+defineSymbol('\\therefore', AMS, REL, "\u2234", 1129);
+defineSymbol('\\because', AMS, REL, "\u2235", 388);
+defineSymbol('\\implies', MAIN, REL, "\u27F9", 1858);
+defineSymbol('\\gets', MAIN, REL, "\u2190", 150);
+defineSymbol('\\dashv', MAIN, REL, "\u22A3", 299);
+defineSymbol('\\impliedby', MAIN, REL, "\u27F8", CRYPTIC);
+defineSymbol('\\biconditional', MAIN, REL, "\u27F7", CRYPTIC);
+defineSymbol('\\roundimplies', MAIN, REL, "\u2970", CRYPTIC); // AMS Binary Operators
+
+category = 'Operators';
+defineSymbol('+', MAIN, BIN, '+', SUPERCOMMON); // > 2,000
+
+defineSymbol('-', MAIN, BIN, "\u2212", SUPERCOMMON); // > 2,000
+
+defineSymbol("\u2212", MAIN, BIN, "\u2212", SUPERCOMMON); // > 2,000
+
+defineSymbol('\\pm', MAIN, BIN, "\xB1", COMMON); // > 2,000
+
+defineSymbol('\\mp', MAIN, BIN, "\u2213", COMMON); // > 2,000
+
+defineSymbol('*', MAIN, BIN, "\u2217", COMMON); // > 2,000
+
+defineSymbol('\\times', MAIN, BIN, "\xD7", COMMON); // > 2,000
+
+defineSymbol('\\div', MAIN, BIN, "\xF7", COMMON); // > 2,000
+
+defineSymbol('\\surd', MAIN, MATHORD, "\u221A", COMMON); // > 2,000
+
+defineSymbol('\\divides', MAIN, BIN, "\u2223", CRYPTIC); // From MnSymbol package
+
+defineSymbol('\\ltimes', AMS, BIN, "\u22C9", 576);
+defineSymbol('\\rtimes', AMS, BIN, "\u22CA", 946);
+defineSymbol('\\leftthreetimes', AMS, BIN, "\u22CB", 34);
+defineSymbol('\\rightthreetimes', AMS, BIN, "\u22CC", 14);
+defineSymbol('\\intercal', AMS, BIN, "\u22BA", 478);
+defineSymbol('\\dotplus', AMS, BIN, "\u2214", 81);
+defineSymbol('\\centerdot', AMS, BIN, "\u22C5", 271);
+defineSymbol('\\doublebarwedge', AMS, BIN, "\u2A5E", 5);
+defineSymbol('\\divideontimes', AMS, BIN, "\u22C7", 51);
+defineSymbol('\\cdot', MAIN, BIN, "\u22C5", CRYPTIC);
+category = 'Others';
+defineSymbol('\\infty', MAIN, MATHORD, "\u221E", SUPERCOMMON); // >2,000
+
+defineSymbol('\\prime', MAIN, ORD, "\u2032", SUPERCOMMON); // >2,000
+
+defineSymbol('\\doubleprime', MAIN, MATHORD, "\u2033"); // NOTE: Not in TeX, but Mathematica
+
+defineSymbol('\\angle', MAIN, MATHORD, "\u2220", COMMON); // >2,000
+
+defineSymbol('`', MAIN, MATHORD, "\u2018");
+defineSymbol('\\$', MAIN, MATHORD, '$');
+defineSymbol('\\%', MAIN, MATHORD, '%');
+defineSymbol('\\_', MAIN, MATHORD, '_');
+category = 'Greek'; // Note: In TeX, greek symbols are only available in Math mode
+
+defineSymbol('\\alpha', MAIN, ORD, "\u03B1", COMMON); // >2,000
+
+defineSymbol('\\beta', MAIN, ORD, "\u03B2", COMMON); // >2,000
+
+defineSymbol('\\gamma', MAIN, ORD, "\u03B3", COMMON); // >2,000
+
+defineSymbol('\\delta', MAIN, ORD, "\u03B4", COMMON); // >2,000
+
+defineSymbol('\\epsilon', MAIN, ORD, "\u03F5", COMMON); // >2,000
+
+defineSymbol('\\varepsilon', MAIN, ORD, "\u03B5");
+defineSymbol('\\zeta', MAIN, ORD, "\u03B6", COMMON); // >2,000
+
+defineSymbol('\\eta', MAIN, ORD, "\u03B7", COMMON); // >2,000
+
+defineSymbol('\\theta', MAIN, ORD, "\u03B8", COMMON); // >2,000
+
+defineSymbol('\\vartheta', MAIN, ORD, "\u03D1", COMMON); // >2,000
+
+defineSymbol('\\iota', MAIN, ORD, "\u03B9", COMMON); // >2,000
+
+defineSymbol('\\kappa', MAIN, ORD, "\u03BA", COMMON); // >2,000
+
+defineSymbol('\\varkappa', AMS, ORD, "\u03F0", COMMON); // >2,000
+
+defineSymbol('\\lambda', MAIN, ORD, "\u03BB", COMMON); // >2,000
+
+defineSymbol('\\mu', MAIN, ORD, "\u03BC", COMMON); // >2,000
+
+defineSymbol('\\nu', MAIN, ORD, "\u03BD", COMMON); // >2,000
+
+defineSymbol('\\xi', MAIN, ORD, "\u03BE", COMMON); // >2,000
+
+defineSymbol('\\omicron', MAIN, ORD, 'o');
+defineSymbol('\\pi', MAIN, ORD, "\u03C0", COMMON); // >2,000
+
+defineSymbol('\\varpi', MAIN, ORD, "\u03D6", COMMON); // >2,000
+
+defineSymbol('\\rho', MAIN, ORD, "\u03C1", COMMON); // >2,000
+
+defineSymbol('\\varrho', MAIN, ORD, "\u03F1", COMMON); // >2,000
+
+defineSymbol('\\sigma', MAIN, ORD, "\u03C3", COMMON); // >2,000
+
+defineSymbol('\\varsigma', MAIN, ORD, "\u03C2", COMMON); // >2,000
+
+defineSymbol('\\tau', MAIN, ORD, "\u03C4", COMMON); // >2,000
+
+defineSymbol('\\phi', MAIN, ORD, "\u03D5", COMMON); // >2,000
+
+defineSymbol('\\varphi', MAIN, ORD, "\u03C6", COMMON); // >2,000
+
+defineSymbol("\\upsilon", MAIN, ORD, "\u03C5", COMMON); // >2,000
+
+defineSymbol('\\chi', MAIN, ORD, "\u03C7", COMMON); // >2,000
+
+defineSymbol('\\psi', MAIN, ORD, "\u03C8", COMMON); // >2,000
+
+defineSymbol('\\omega', MAIN, ORD, "\u03C9", COMMON); // >2,000
+
+defineSymbol('\\Gamma', MAIN, ORD, "\u0393", COMMON); // >2,000
+
+defineSymbol('\\Delta', MAIN, ORD, "\u0394", COMMON); // >2,000
+
+defineSymbol('\\Theta', MAIN, ORD, "\u0398", COMMON); // >2,000
+
+defineSymbol('\\Lambda', MAIN, ORD, "\u039B", COMMON); // >2,000
+
+defineSymbol('\\Xi', MAIN, ORD, "\u039E", COMMON); // >2,000
+
+defineSymbol('\\Pi', MAIN, ORD, "\u03A0", COMMON); // >2,000
+
+defineSymbol('\\Sigma', MAIN, ORD, "\u03A3", COMMON); // >2,000
+
+defineSymbol("\\Upsilon", MAIN, ORD, "\u03A5", COMMON); // >2,000
+
+defineSymbol('\\Phi', MAIN, ORD, "\u03A6", COMMON); // >2,000
+
+defineSymbol('\\Psi', MAIN, ORD, "\u03A8", COMMON); // >2,000
+
+defineSymbol('\\Omega', MAIN, ORD, "\u03A9", COMMON); // >2,000
+// AMS Greek
+
+defineSymbol('\\digamma', AMS, ORD, "\u03DD", 248);
+category = 'Others';
+defineSymbol('\\emptyset', MAIN, MATHORD, "\u2205", SUPERCOMMON); // >2,000
+
+defineSymbol('\\varnothing', AMS, MATHORD, "\u2205", SUPERCOMMON); // >2,000
+
+category = 'Set Operators';
+defineSymbol('\\cap', MAIN, BIN, "\u2229", SUPERCOMMON);
+defineSymbol('\\cup', MAIN, BIN, "\u222A", SUPERCOMMON);
+defineSymbol('\\setminus', MAIN, BIN, "\u2216", COMMON); // >2,000
+
+defineSymbol('\\smallsetminus', AMS, BIN, "\u2216", 254);
+defineSymbol('\\complement', AMS, MATHORD, "\u2201", 200);
+category = 'Set Relations';
+defineSymbol('\\in', MAIN, REL, "\u2208", SUPERCOMMON); // >2,000
+
+defineSymbol('\\notin', MAIN, REL, "\u2209", SUPERCOMMON); // >2,000
+
+defineSymbol('\\not', MAIN, REL, "\u0338", COMMON);
+defineSymbol('\\ni', MAIN, REL, "\u220B", COMMON); // >2,000
+
+defineSymbol('\\owns', MAIN, REL, "\u220B", 18);
+defineSymbol('\\subset', MAIN, REL, "\u2282", SUPERCOMMON); // >2,000
+
+defineSymbol('\\supset', MAIN, REL, "\u2283", SUPERCOMMON); // >2,000
+
+defineSymbol('\\subseteq', MAIN, REL, "\u2286", SUPERCOMMON); // >2,000
+
+defineSymbol('\\supseteq', MAIN, REL, "\u2287", SUPERCOMMON); // >2,000
+
+defineSymbol('\\subsetneq', AMS, REL, "\u228A", 1945);
+defineSymbol('\\varsubsetneq', AMS, REL, "\uE01A", 198);
+defineSymbol('\\subsetneqq', AMS, REL, "\u2ACB", 314);
+defineSymbol('\\varsubsetneqq', AMS, REL, "\uE017", 55);
+defineSymbol('\\nsubset', AMS, REL, "\u2284", CRYPTIC); // NOTE: Not TeX?
+
+defineSymbol('\\nsupset', AMS, REL, "\u2285", CRYPTIC); // NOTE: Not TeX?
+
+defineSymbol('\\nsubseteq', AMS, REL, "\u2288", 950);
+defineSymbol('\\nsupseteq', AMS, REL, "\u2289", 49);
+category = 'Spacing'; // See http://tex.stackexchange.com/questions/41476/lengths-and-when-to-use-them
+
+defineSymbol('\\ ', MAIN, SPACING, "\xA0");
+defineSymbol('~', MAIN, SPACING, "\xA0");
+defineSymbol('\\space', MAIN, SPACING, "\xA0");
+defineSymbol('\\!', MAIN, SPACING, null);
+defineSymbol('\\,', MAIN, SPACING, null);
+defineSymbol('\\:', MAIN, SPACING, null);
+defineSymbol('\\;', MAIN, SPACING, null);
+defineSymbol('\\enskip', MAIN, SPACING, null); // \enspace is a TeX command (not LaTeX) equivalent to a \skip
+
+defineSymbol('\\enspace', MAIN, SPACING, null, 672);
+defineSymbol('\\quad', MAIN, SPACING, null, COMMON); // >2,000
+
+defineSymbol('\\qquad', MAIN, SPACING, null, COMMON); // >2,000
+
+defineFunction(['\\hspace', '\\hspace*' // \hspace* inserts a non-breakable space, but since we don't line break...
+// it's the same as \hspace.
+], '{width:skip}', {
+  allowedInText: true
+}, function (_name, args) {
+  return {
+    type: 'spacing',
+    width: args[0] || 0
+  };
+});
+/**
+ * If possible, i.e. if they are all simple atoms, return a string made up of
+ * their body
+ * @param {object[]} atoms
+ */
+
+function getSimpleString(atoms) {
+  var result = '';
+  var success = true;
+  var _iteratorNormalCompletion7 = true;
+  var _didIteratorError7 = false;
+  var _iteratorError7 = undefined;
+
+  try {
+    for (var _iterator7 = atoms[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
+      var atom = _step7.value;
+
+      if (typeof atom.body === 'string') {
+        result += atom.body;
+      } else {
+        success = false;
+      }
+    }
+  } catch (err) {
+    _didIteratorError7 = true;
+    _iteratorError7 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
+        _iterator7.return();
+      }
+    } finally {
+      if (_didIteratorError7) {
+        throw _iteratorError7;
+      }
+    }
+  }
+
+  return success ? result : '';
+}
+
+defineFunction(['\\mathop', '\\mathbin', '\\mathrel', '\\mathopen', '\\mathclose', '\\mathpunct', '\\mathord', '\\mathinner'], '{:auto}', null, function (name, args) {
+  var result = {
+    type: {
+      '\\mathop': 'mop',
+      '\\mathbin': 'mbin',
+      '\\mathrel': 'mrel',
+      '\\mathopen': 'mopen',
+      '\\mathclose': 'mclose',
+      '\\mathpunct': 'mpunct',
+      '\\mathord': 'mord',
+      '\\mathinner': 'minner'
+    }[name],
+    body: getSimpleString(args[0]) || args[0],
+    captureSelection: true,
+    // Do not let children be selected
+    baseFontFamily: name === '\\mathop' ? 'math' : ''
+  };
+
+  if (name === '\\mathop') {
+    result.limits = 'nolimits';
+    result.isFunction = true;
+  }
+
+  return result;
+});
+defineFunction(['\\operatorname', '\\operatorname*'], '{operator:string}', null, function (name, args) {
+  var result = {
+    type: 'mop',
+    skipBoundary: true,
+    body: args[0],
+    isFunction: true,
+    baseFontFamily: 'cmr'
+  };
+
+  if (name === '\\operatorname') {
+    result.limits = 'nolimits';
+  } else if (name === '\\operatorname*') {
+    result.limits = 'limits';
+  }
+
+  return result;
+}); // Punctuation
+
+category = 'Punctuation';
+defineSymbol('\\colon', MAIN, PUNCT, ':', COMMON); // >2,000
+
+defineSymbol('\\cdotp', MAIN, PUNCT, "\u22C5", COMMON); // >2,000
+
+defineSymbol('\\ldots', MAIN, INNER, "\u2026", COMMON); // >2,000
+
+defineSymbol('\\cdots', MAIN, INNER, "\u22EF", COMMON); // >2,000
+
+defineSymbol('\\ddots', MAIN, INNER, "\u22F1", COMMON); // >2,000
+
+defineSymbol('\\mathellipsis', MAIN, INNER, "\u2026", 91);
+defineSymbol('\\vdots', MAIN, MATHORD, "\u22EE", COMMON); // >2,000
+
+defineSymbol('\\ldotp', MAIN, PUNCT, ".", 18);
+defineSymbol(',', MAIN, PUNCT, ',');
+defineSymbol(';', MAIN, PUNCT, ';');
+category = 'Logical Operators';
+defineSymbol('\\wedge', MAIN, BIN, "\u2227", SUPERCOMMON); // >2,000
+
+defineSymbol('\\vee', MAIN, BIN, "\u2228", SUPERCOMMON); // >2,000
+
+defineSymbol('\\lnot', MAIN, MATHORD, "\xAC", COMMON); // >2,000
+
+defineSymbol('\\neg', MAIN, MATHORD, "\xAC", SUPERCOMMON); // >2,000
+
+defineSymbol('\\land', MAIN, BIN, "\u2227", 659);
+defineSymbol('\\lor', MAIN, BIN, "\u2228", 364);
+defineSymbol('\\barwedge', AMS, BIN, "\u22BC", 21);
+defineSymbol('\\veebar', AMS, BIN, "\u22BB", 43);
+defineSymbol('\\nor', AMS, BIN, "\u22BB", 7); // NOTE: Not TeXematica
+
+defineSymbol('\\curlywedge', AMS, BIN, "\u22CF", 58);
+defineSymbol('\\curlyvee', AMS, BIN, "\u22CE", 57);
+category = 'Boxes';
+defineSymbol('\\square', AMS, MATHORD, "\u25A1", COMMON); // >2,000
+
+defineSymbol('\\Box', AMS, MATHORD, "\u25A1", COMMON); // >2,000
+
+defineSymbol('\\blacksquare', AMS, MATHORD, "\u25A0", 1679);
+defineSymbol('\\boxminus', AMS, BIN, "\u229F", 79);
+defineSymbol('\\boxplus', AMS, BIN, "\u229E", 276);
+defineSymbol('\\boxtimes', AMS, BIN, "\u22A0", 457);
+defineSymbol('\\boxdot', AMS, BIN, "\u22A1", 120);
+category = 'Circles';
+defineSymbol('\\circ', MAIN, BIN, "\u2218", SUPERCOMMON); // >2,000
+
+defineSymbol('\\bigcirc', MAIN, BIN, "\u25EF", 903);
+defineSymbol('\\bullet', MAIN, BIN, "\u2219", COMMON); // >2,000
+
+defineSymbol('\\circleddash', AMS, BIN, "\u229D", COMMON); // >2,000
+
+defineSymbol('\\circledast', AMS, BIN, "\u229B", 339);
+defineSymbol('\\oplus', MAIN, BIN, "\u2295", COMMON); // >2,000
+
+defineSymbol('\\ominus', MAIN, BIN, "\u2296", 1568);
+defineSymbol('\\otimes', MAIN, BIN, "\u2297", COMMON); // >2,000
+
+defineSymbol('\\odot', MAIN, BIN, "\u2299", COMMON); // >2,000
+
+defineSymbol('\\circledcirc', AMS, BIN, "\u229A", 93);
+defineSymbol('\\oslash', MAIN, BIN, "\u2298", 497);
+defineSymbol('\\circledS', AMS, MATHORD, "\u24C8", 31);
+defineSymbol('\\circledR', AMS, MATHORD, "\xAE", 1329);
+category = 'Triangles';
+defineSymbol('\\triangle', MAIN, MATHORD, "\u25B3", COMMON); // > 2,000
+
+defineSymbol('\\triangleq', AMS, REL, "\u225C", COMMON); // >2,000
+
+defineSymbol('\\bigtriangleup', MAIN, BIN, "\u25B3", 1773);
+defineSymbol('\\vartriangle', AMS, REL, "\u25B3", 762);
+defineSymbol('\\triangledown', AMS, MATHORD, "\u25BD", 520);
+defineSymbol('\\bigtriangledown', MAIN, BIN, "\u25BD", 661);
+defineSymbol('\\triangleleft', MAIN, BIN, "\u25C3", 534);
+defineSymbol('\\vartriangleleft', AMS, REL, "\u22B2", 281);
+defineSymbol('\\trianglelefteq', AMS, REL, "\u22B4", 176);
+defineSymbol('\\ntriangleleft', AMS, REL, "\u22EA", 13);
+defineSymbol('\\ntrianglelefteq', AMS, REL, "\u22EC", 22);
+defineSymbol('\\triangleright', MAIN, BIN, "\u25B9", 516);
+defineSymbol('\\vartriangleright', AMS, REL, "\u22B3", 209);
+defineSymbol('\\trianglerighteq', AMS, REL, "\u22B5", 45);
+defineSymbol('\\ntriangleright', AMS, REL, "\u22EB", 15);
+defineSymbol('\\ntrianglerighteq', AMS, REL, "\u22ED", 6);
+defineSymbol('\\blacktriangle', AMS, MATHORD, "\u25B2", 360);
+defineSymbol('\\blacktriangledown', AMS, MATHORD, "\u25BC", 159);
+defineSymbol('\\blacktriangleleft', AMS, REL, "\u25C0", 101);
+defineSymbol('\\blacktriangleright', AMS, REL, "\u25B6", 271);
+category = 'Others';
+defineSymbol('\\/', MAIN, ORD, '/');
+defineSymbol('|', MAIN, 'textord', "\u2223");
+category = 'Big Operators';
+defineSymbol('\\sqcup', MAIN, BIN, "\u2294", 1717); // 63
+
+defineSymbol('\\sqcap', MAIN, BIN, "\u2293", 735); // 38
+
+defineSymbol("\\uplus", MAIN, BIN, "\u228E", 597);
+defineSymbol('\\wr', MAIN, BIN, "\u2240", 286);
+defineSymbol('\\Cap', AMS, BIN, "\u22D2", 2);
+defineSymbol('\\Cup', AMS, BIN, "\u22D3", 2);
+defineSymbol('\\doublecap', AMS, BIN, "\u22D2", 1);
+defineSymbol('\\doublecup', AMS, BIN, "\u22D3", 1);
+defineSymbol('\\amalg', MAIN, BIN, "\u2A3F", CRYPTIC);
+defineSymbol('\\And', MAIN, BIN, "&");
+category = 'Accents'; // defineSymbol( '\\bar',  MAIN,  ACCENT, '\u00af', COMMON);    // >2,000
+// defineSymbol( '\\vec',  MAIN,  ACCENT, '\u20d7');
+// defineSymbol( '\\hat',  MAIN,  ACCENT, '\u005e');
+// defineSymbol( '\\dot',  MAIN,  ACCENT, '\u02d9');
+// defineSymbol( '\\ddot',  MAIN,  ACCENT, '\u00a8', COMMON);    // >2,000
+// defineSymbol( '\\acute',  MAIN,  ACCENT, '\u00b4', COMMON);    // >2,000
+// defineSymbol( '\\tilde',  MAIN,  ACCENT, '\u007e', COMMON);    // >2,000
+// defineSymbol( '\\check',  MAIN,  ACCENT, '\u02c7', COMMON);    // >2,000
+// defineSymbol( '\\breve',  MAIN,  ACCENT, '\u02d8', 1548);
+// defineSymbol( '\\grave',  MAIN,  ACCENT, '\u0060', 735);
+
+defineFunction(['\\acute', '\\grave', '\\dot', '\\ddot', '\\mathring', '\\tilde', '\\bar', '\\breve', '\\check', '\\hat', '\\vec'], '{body:auto}', null, function (name, args) {
+  return {
+    type: 'accent',
+    accent: {
+      '\\acute': "\u02CA",
+      '\\grave': "\u02CB",
+      '\\dot': "\u02D9",
+      '\\ddot': "\xA8",
+      '\\mathring': "\u02DA",
+      '\\tilde': "~",
+      '\\bar': "\u02C9",
+      '\\breve': "\u02D8",
+      '\\check': "\u02C7",
+      '\\hat': "^",
+      '\\vec': "\u20D7"
+    }[name],
+    limits: 'accent',
+    // This will suppress the regular
+    // supsub attachment and will delegate
+    // it to the decomposeAccent
+    // (any non-null value would do)
+    skipBoundary: true,
+    body: args[0]
+  };
+});
+frequency(COMMON, '\\bar', '\\ddot', '\\acute', '\\tilde', '\\check');
+frequency(1548, '\\breve');
+frequency(735, '\\grave');
+frequency(SUPERCOMMON, '\\vec'); // note('\\( \\bar{x}\\): Average of the values \\( (x_1,\\ldots ,x_n) \\)');
+
+category = 'Letters and Letter Like Forms';
+defineSymbol('\\imath', MAIN, MATHORD, "\u0131");
+defineSymbol('\\jmath', MAIN, MATHORD, "\u0237");
+category = 'Others';
+defineSymbol('\\degree', MAIN, MATHORD, "\xB0", 46);
+category = 'Others';
+defineSymbol("'", MAIN, MATHORD, "\u2032"); // Prime
+
+defineSymbol('"', MAIN, MATHORD, "\u201D"); // Double Prime
+// defineSymbol( "\'',  MAIN,  MATHORD, '\u2033');       // Double Prime
+// From plain.tex
+
+category = 'Others';
+defineFunction('\\^', '{:string}', {
+  allowedInText: true
+}, function (name, args) {
+  return {
+    type: 'mord',
+    limits: 'nolimits',
+    symbol: true,
+    isFunction: false,
+    body: args[0] ? {
+      'a': 'â',
+      'e': 'ê',
+      'i': 'î',
+      'o': 'ô',
+      'u': 'û',
+      'A': 'Â',
+      'E': 'Ê',
+      'I': 'Î',
+      'O': 'Ô',
+      'U': 'Û'
+    }[args[0]] || '^' : '^',
+    baseFontFamily: 'cmr'
+  };
+});
+defineFunction("\\`", '{:string}', {
+  allowedInText: true
+}, function (name, args) {
+  return {
+    type: 'mord',
+    limits: 'nolimits',
+    symbol: true,
+    isFunction: false,
+    body: args[0] ? {
+      'a': 'à',
+      'e': 'è',
+      'i': 'ì',
+      'o': 'ò',
+      'u': 'ù',
+      'A': 'À',
+      'E': 'È',
+      'I': 'Ì',
+      'O': 'Ò',
+      'U': 'Ù'
+    }[args[0]] || '`' : '`',
+    baseFontFamily: 'cmr'
+  };
+});
+defineFunction("\\'", '{:string}', {
+  allowedInText: true
+}, function (name, args) {
+  return {
+    type: 'mord',
+    limits: 'nolimits',
+    symbol: true,
+    isFunction: false,
+    body: args[0] ? {
+      'a': 'á',
+      'e': 'é',
+      'i': 'í',
+      'o': 'ó',
+      'u': 'ú',
+      'A': 'Á',
+      'E': 'É',
+      'I': 'Í',
+      'O': 'Ó',
+      'U': 'Ú'
+    }[args[0]] || "^" : "^",
+    baseFontFamily: 'cmr'
+  };
+});
+defineFunction('\\~', '{:string}', {
+  allowedInText: true
+}, function (name, args) {
+  return {
+    type: 'mord',
+    limits: 'nolimits',
+    symbol: true,
+    isFunction: false,
+    body: args[0] ? {
+      'n': 'ñ',
+      'N': 'Ñ',
+      'a': 'ã',
+      'o': 'õ',
+      'A': 'Ã',
+      'O': 'Õ'
+    }[args[0]] || "\xB4" : "\xB4",
+    baseFontFamily: 'cmr'
+  };
+});
+defineFunction('\\c', '{:string}', {
+  allowedInText: true
+}, function (name, args) {
+  return {
+    type: 'mord',
+    limits: 'nolimits',
+    symbol: true,
+    isFunction: false,
+    body: args[0] ? {
+      'c': 'ç',
+      'C': 'Ç'
+    }[args[0]] || '' : '',
+    baseFontFamily: 'cmr'
+  };
+}); // Body-text symbols
+// See http://ctan.mirrors.hoobly.com/info/symbols/comprehensive/symbols-a4.pdf, p14
+
+var TEXT_SYMBOLS = {
+  '\\#': "#",
+  '\\&': "&",
+  '\\$': '$',
+  '\\%': '%',
+  '\\_': '_',
+  '\\euro': "\u20AC",
+  '\\maltese': "\u2720",
+  '\\{': '{',
+  '\\}': '}',
+  '\\nobreakspace': "\xA0",
+  '\\ldots': "\u2026",
+  '\\textellipsis': "\u2026",
+  '\\backslash': '\\',
+  '`': "\u2018",
+  '\'': "\u2019",
+  '``': "\u201C",
+  '\'\'': "\u201D",
+  '\\degree': "\xB0",
+  '\\textasciicircum': '^',
+  '\\textasciitilde': '~',
+  '\\textasteriskcentered': '*',
+  '\\textbackslash': '\\',
+  '\\textbraceleft': '{',
+  '\\textbraceright': '}',
+  '\\textbullet': '•',
+  '\\textdollar': '$',
+  '\\textsterling': '£',
+  '–': "\u2013",
+  // EN DASH
+  '—': "\u2014",
+  // EM DASH
+  '‘': "\u2018",
+  // LEFT SINGLE QUOTATION MARK
+  '’': "\u2019",
+  // RIGHT SINGLE QUOTATION MARK
+  '“': "\u201C",
+  // LEFT DOUBLE QUOTATION MARK
+  '”': "\u201D",
+  // RIGHT DOUBLE QUOTATION MARK
+  '"': "\u201D",
+  // DOUBLE PRIME
+  '\\ss': "\xDF",
+  // LATIN SMALL LETTER SHARP S
+  '\\ae': "\xE6",
+  // LATIN SMALL LETTER AE
+  '\\oe': "\u0153",
+  // LATIN SMALL LIGATURE OE
+  '\\AE': "\xC6",
+  // LATIN CAPITAL LETTER AE
+  '\\OE': "\u0152",
+  // LATIN CAPITAL LIGATURE OE
+  '\\O': "\xD8",
+  // LATIN CAPITAL LETTER O WITH STROKE
+  '\\i': "\u0131",
+  // LATIN SMALL LETTER DOTLESS I
+  '\\j': "\u0237",
+  // LATIN SMALL LETTER DOTLESS J
+  '\\aa': "\xE5",
+  // LATIN SMALL LETTER A WITH RING ABOVE
+  '\\AA': "\xC5" // LATIN CAPITAL LETTER A WITH RING ABOVE
+
+};
+var COMMAND_MODE_CHARACTERS = /[a-zA-Z0-9!@*()-=+{}[\]\\';:?/.,~<>`|'$%#&^_" ]/; // Word boundaries for Cyrillic, Polish, French, German, Italian
+// and Spanish. We use \p{L} (Unicode property escapes: "Letter")
+// but Firefox doesn't support it
+// (https://bugzilla.mozilla.org/show_bug.cgi?id=1361876). Booo...
+// See also https://stackoverflow.com/questions/26133593/using-regex-to-match-international-unicode-alphanumeric-characters-in-javascript
+// Edit : https://github.com/arnog/mathlive/issues/195#issuecomment-493741744
+
+var LETTER = // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ?
+/[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // :
+//    new RegExp("\\p{Letter}", 'u');
+
+var LETTER_AND_DIGITS = // typeof navigator !== 'undefined'  && /firefox/i.test(navigator.userAgent) ?
+/[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // :
+//   new RegExp("[0-9\\p{Letter}]", 'u');
+
+var _default = {
+  matchCodepoint: matchCodepoint,
+  commandAllowed: commandAllowed,
+  unicodeToMathVariant: unicodeToMathVariant,
+  mathVariantToUnicode: mathVariantToUnicode,
+  unicodeStringToLatex: unicodeStringToLatex,
+  getInfo: getInfo,
+  getValue: getValue,
+  getEnvironmentInfo: getEnvironmentInfo,
+  suggest: suggest,
+  FREQUENCY_VALUE: FREQUENCY_VALUE,
+  TEXT_SYMBOLS: TEXT_SYMBOLS,
+  MATH_SYMBOLS: MATH_SYMBOLS,
+  ENVIRONMENTS: ENVIRONMENTS,
+  RIGHT_DELIM: RIGHT_DELIM,
+  FUNCTIONS: FUNCTIONS,
+  MACROS: MACROS,
+  COMMAND_MODE_CHARACTERS: COMMAND_MODE_CHARACTERS,
+  LETTER: LETTER,
+  LETTER_AND_DIGITS: LETTER_AND_DIGITS // TODO
+  // Some missing greek letters, but see https://reference.wolfram.com/language/tutorial/LettersAndLetterLikeForms.html
+  // koppa, stigma, Sampi
+  // See https://tex.stackexchange.com/questions/231878/accessing-archaic-greek-koppa-in-the-birkmult-document-class
+  // Capital Alpha, etc...
+  // Colon (ratio) (2236)
+  // Function names can have '*' in them
+  // Review:
+  // https://en.wikipedia.org/wiki/Help:Displaying_a_formula
+  // https://reference.wolfram.com/language/tutorial/LettersAndLetterLikeForms.html
+  // ftp://ftp.dante.de/tex-archive/info/symbols/comprehensive/symbols-a4.pdf
+  // Media Wiki Reference
+  // https://en.wikipedia.org/wiki/Help:Displaying_a_formula
+  // MathJax Reference
+  // http://docs.mathjax.org/en/latest/tex.html#supported-latex-commands
+  // http://www.onemathematicalcat.org/MathJaxDocumentation/TeXSyntax.htm
+  // LaTeX Reference
+  // http://ctan.sharelatex.com/tex-archive/info/latex2e-help-texinfo/latex2e.html
+  // iBooks Author/Pages
+  // https://support.apple.com/en-au/HT202501
+  // Mathematica Reference
+  // https://reference.wolfram.com/language/tutorial/NamesOfSymbolsAndMathematicalObjects.html
+  // https://reference.wolfram.com/language/guide/MathematicalTypesetting.html
+
+  /*
+      * @todo \sb (equivalent to _) $\mathfrak{sl}\sb 2$ frequency 184
+      * @todo \sp (equivalent to ^) $\mathfrak{sl}\sp 2$ frequency 274
+      * \intertext    frequency 0
+  
+  
+      See http://mirrors.ibiblio.org/CTAN/macros/latex/contrib/mathtools/mathtools.pdf
+  
+  */
+
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/delimiters.js b/dist/core/delimiters.js
new file mode 100755
index 000000000..11f4f69b0
--- /dev/null
+++ b/dist/core/delimiters.js
@@ -0,0 +1,609 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _definitions = _interopRequireDefault(require("./definitions.js"));
+
+var _span = _interopRequireDefault(require("./span.js"));
+
+var _mathstyle = _interopRequireDefault(require("./mathstyle.js"));
+
+var _fontMetrics = _interopRequireDefault(require("./fontMetrics.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * This module deals with creating delimiters of various sizes. The TeXbook
+ * discusses these routines on page 441-442, in the "Another subroutine sets box
+ * x to a specified variable delimiter" paragraph.
+ *
+ * There are three main routines here. `makeSmallDelim` makes a delimiter in the
+ * normal font, but in either text, script, or scriptscript style.
+ * `makeLargeDelim` makes a delimiter in textstyle, but in one of the Size1,
+ * Size2, Size3, or Size4 fonts. `makeStackedDelim` makes a delimiter out of
+ * smaller pieces that are stacked on top of one another.
+ *
+ * The functions take a parameter `center`, which determines if the delimiter
+ * should be centered around the axis.
+ *
+ * Then, there are three exposed functions. `sizedDelim` makes a delimiter in
+ * one of the given sizes. This is used for things like `\bigl`.
+ * `customSizedDelim` makes a delimiter with a given total height+depth. It is
+ * called in places like `\sqrt`. `leftRightDelim` makes an appropriate
+ * delimiter which surrounds an expression of a given height an depth. It is
+ * used in `\left` and `\right`.
+ * @summary   Handling of delimiters surrounds symbols.
+ * @module core/delimiters
+ * @private
+ */
+var makeSymbol = _span.default.makeSymbol;
+var makeSpan = _span.default.makeSpan;
+var makeVlist = _span.default.makeVlist;
+/**
+ * Makes a small delimiter. This is a delimiter that comes in the Main-Regular
+ * font, but is restyled to either be in textstyle, scriptstyle, or
+ * scriptscriptstyle.
+ * @memberof module:delimiters
+ * @private
+ */
+
+function makeSmallDelim(type, delim, style, center, context, classes) {
+  var text = makeSymbol('AMS-Regular', _definitions.default.getValue('math', delim));
+
+  var span = _span.default.makeStyleWrap(type, text, context.mathstyle, style, classes);
+
+  if (center) {
+    span.setTop((1 - context.mathstyle.sizeMultiplier / style.sizeMultiplier) * context.mathstyle.metrics.axisHeight);
+  }
+
+  span.setStyle('color', context.color);
+  if (typeof context.opacity === 'number') span.setStyle('opacity', context.opacity);
+  return span;
+}
+/**
+ * Makes a large delimiter. This is a delimiter that comes in the Size1, Size2,
+ * Size3, or Size4 fonts. It is always rendered in textstyle.
+ * @memberof module:delimiters
+ * @private
+ */
+
+
+function makeLargeDelim(type, delim, size, center, context, classes) {
+  var inner = makeSymbol('Size' + size + '-Regular', _definitions.default.getValue('math', delim));
+
+  var result = _span.default.makeStyleWrap(type, makeSpan(inner, 'delimsizing size' + size), context.mathstyle, _mathstyle.default.TEXT, classes);
+
+  if (center) {
+    result.setTop((1 - context.mathstyle.sizeMultiplier) * context.mathstyle.metrics.axisHeight);
+  }
+
+  result.setStyle('color', context.color);
+  if (typeof context.opacity === 'number') result.setStyle('opacity', context.opacity);
+  return result;
+}
+/**
+ * Make an inner span with the given offset and in the given font. This is used
+ * in `makeStackedDelim` to make the stacking pieces for the delimiter.
+ * @memberof module:delimiters
+ * @private
+ */
+
+
+function makeInner(symbol, font) {
+  var sizeClass = ''; // Apply the correct CSS class to choose the right font.
+
+  if (font === 'Size1-Regular') {
+    sizeClass = ' delim-size1';
+  } else if (font === 'Size4-Regular') {
+    sizeClass = ' delim-size4';
+  } // @todo: revisit if all this wrapping is needed or if the spans could
+  // be simplified
+
+
+  var inner = makeSpan(makeSymbol(font, _definitions.default.getValue('math', symbol)), 'delimsizinginner' + sizeClass);
+  return inner;
+}
+/**
+ * Make a stacked delimiter out of a given delimiter, with the total height at
+ * least `heightTotal`. This routine is mentioned on page 442 of the TeXbook.
+ * @memberof module:delimiters
+ * @private
+ */
+
+
+function makeStackedDelim(type, delim, heightTotal, center, context, classes) {
+  // There are four parts, the top, an optional middle, a repeated part, and a
+  // bottom.
+  var top;
+  var middle;
+  var repeat;
+  var bottom;
+  top = repeat = bottom = _definitions.default.getValue('math', delim);
+  middle = null; // Also keep track of what font the delimiters are in
+
+  var font = 'Size1-Regular'; // We set the parts and font based on the symbol. Note that we use
+  // '\u23d0' instead of '|' and '\u2016' instead of '\\|' for the
+  // repeats of the arrows
+
+  if (delim === '\\vert' || delim === '\\lvert' || delim === '\\rvert' || delim === '\\mvert' || delim === '\\mid') {
+    repeat = top = bottom = "\u2223";
+  } else if (delim === '\\Vert' || delim === '\\lVert' || delim === '\\rVert' || delim === '\\mVert' || delim === '\\|') {
+    repeat = top = bottom = "\u2225";
+  } else if (delim === "\\uparrow") {
+    repeat = bottom = "\u23D0";
+  } else if (delim === "\\Uparrow") {
+    repeat = bottom = "\u2016";
+  } else if (delim === '\\downarrow') {
+    top = repeat = "\u23D0";
+  } else if (delim === '\\Downarrow') {
+    top = repeat = "\u2016";
+  } else if (delim === "\\updownarrow") {
+    top = "\u2191";
+    repeat = "\u23D0";
+    bottom = "\u2193";
+  } else if (delim === "\\Updownarrow") {
+    top = "\u21D1";
+    repeat = "\u2016";
+    bottom = "\u21D3";
+  } else if (delim === '[' || delim === '\\lbrack') {
+    top = "\u23A1";
+    repeat = "\u23A2";
+    bottom = "\u23A3";
+    font = 'Size4-Regular';
+  } else if (delim === ']' || delim === '\\rbrack') {
+    top = "\u23A4";
+    repeat = "\u23A5";
+    bottom = "\u23A6";
+    font = 'Size4-Regular';
+  } else if (delim === '\\lfloor') {
+    repeat = top = "\u23A2";
+    bottom = "\u23A3";
+    font = 'Size4-Regular';
+  } else if (delim === '\\lceil') {
+    top = "\u23A1";
+    repeat = bottom = "\u23A2";
+    font = 'Size4-Regular';
+  } else if (delim === '\\rfloor') {
+    repeat = top = "\u23A5";
+    bottom = "\u23A6";
+    font = 'Size4-Regular';
+  } else if (delim === '\\rceil') {
+    top = "\u23A4";
+    repeat = bottom = "\u23A5";
+    font = 'Size4-Regular';
+  } else if (delim === '(') {
+    top = "\u239B";
+    repeat = "\u239C";
+    bottom = "\u239D";
+    font = 'Size4-Regular';
+  } else if (delim === ')') {
+    top = "\u239E";
+    repeat = "\u239F";
+    bottom = "\u23A0";
+    font = 'Size4-Regular';
+  } else if (delim === '\\{' || delim === '\\lbrace') {
+    top = "\u23A7";
+    middle = "\u23A8";
+    bottom = "\u23A9";
+    repeat = "\u23AA";
+    font = 'Size4-Regular';
+  } else if (delim === '\\}' || delim === '\\rbrace') {
+    top = "\u23AB";
+    middle = "\u23AC";
+    bottom = "\u23AD";
+    repeat = "\u23AA";
+    font = 'Size4-Regular';
+  } else if (delim === '\\lgroup') {
+    top = "\u23A7";
+    bottom = "\u23A9";
+    repeat = "\u23AA";
+    font = 'Size4-Regular';
+  } else if (delim === '\\rgroup') {
+    top = "\u23AB";
+    bottom = "\u23AD";
+    repeat = "\u23AA";
+    font = 'Size4-Regular';
+  } else if (delim === '\\lmoustache') {
+    top = "\u23A7";
+    bottom = "\u23AD";
+    repeat = "\u23AA";
+    font = 'Size4-Regular';
+  } else if (delim === '\\rmoustache') {
+    top = "\u23AB";
+    bottom = "\u23A9";
+    repeat = "\u23AA";
+    font = 'Size4-Regular';
+  } else if (delim === '\\surd') {
+    top = "\uE001";
+    bottom = "\u23B7";
+    repeat = "\uE000";
+    font = 'Size4-Regular';
+  } else if (delim === "\\ulcorner") {
+    top = "\u250C";
+    repeat = bottom = ' ';
+  } else if (delim === "\\urcorner") {
+    top = "\u2510";
+    repeat = bottom = ' ';
+  } else if (delim === '\\llcorner') {
+    bottom = "\u2514";
+    repeat = top = ' ';
+  } else if (delim === '\\lrcorner') {
+    top = "\u2518";
+    repeat = top = ' ';
+  } // Get the metrics of the four sections
+
+
+  var topMetrics = _fontMetrics.default.getCharacterMetrics(_definitions.default.getValue('math', top), font);
+
+  var topHeightTotal = topMetrics.height + topMetrics.depth;
+
+  var repeatMetrics = _fontMetrics.default.getCharacterMetrics(_definitions.default.getValue('math', repeat), font);
+
+  var repeatHeightTotal = repeatMetrics.height + repeatMetrics.depth;
+
+  var bottomMetrics = _fontMetrics.default.getCharacterMetrics(_definitions.default.getValue('math', bottom), font);
+
+  var bottomHeightTotal = bottomMetrics.height + bottomMetrics.depth;
+  var middleHeightTotal = 0;
+  var middleFactor = 1;
+
+  if (middle !== null) {
+    var middleMetrics = _fontMetrics.default.getCharacterMetrics(_definitions.default.getValue('math', middle), font);
+
+    middleHeightTotal = middleMetrics.height + middleMetrics.depth;
+    middleFactor = 2; // repeat symmetrically above and below middle
+  } // Calculate the minimal height that the delimiter can have.
+  // It is at least the size of the top, bottom, and optional middle combined.
+
+
+  var minHeight = topHeightTotal + bottomHeightTotal + middleHeightTotal; // Compute the number of copies of the repeat symbol we will need
+
+  var repeatCount = Math.ceil((heightTotal - minHeight) / (middleFactor * repeatHeightTotal)); // Compute the total height of the delimiter including all the symbols
+
+  var realHeightTotal = minHeight + repeatCount * middleFactor * repeatHeightTotal; // The center of the delimiter is placed at the center of the axis. Note
+  // that in this context, 'center' means that the delimiter should be
+  // centered around the axis in the current style, while normally it is
+  // centered around the axis in textstyle.
+
+  var axisHeight = context.mathstyle.metrics.axisHeight;
+
+  if (center) {
+    axisHeight *= context.mathstyle.sizeMultiplier;
+  } // Calculate the depth
+
+
+  var depth = realHeightTotal / 2 - axisHeight; // Now, we start building the pieces that will go into the vlist
+  // Keep a list of the inner pieces
+
+  var inners = []; // Add the bottom symbol
+
+  inners.push(makeInner(bottom, font));
+
+  if (middle === null) {
+    // Add that many symbols
+    for (var i = 0; i < repeatCount; i++) {
+      inners.push(makeInner(repeat, font));
+    }
+  } else {
+    // When there is a middle bit, we need the middle part and two repeated
+    // sections
+    for (var _i = 0; _i < repeatCount; _i++) {
+      inners.push(makeInner(repeat, font));
+    }
+
+    inners.push(makeInner(middle, font));
+
+    for (var _i2 = 0; _i2 < repeatCount; _i2++) {
+      inners.push(makeInner(repeat, font));
+    }
+  } // Add the top symbol
+
+
+  inners.push(makeInner(top, font)); // Finally, build the vlist
+
+  var inner = makeVlist(context, inners, 'bottom', depth);
+  inner.setStyle('color', context.color);
+  if (typeof context.opacity === 'number') inner.setStyle('opacity', context.opacity);
+  return _span.default.makeStyleWrap(type, makeSpan(inner, 'delimsizing mult'), context.mathstyle, _mathstyle.default.TEXT, classes);
+} // There are three kinds of delimiters, delimiters that stack when they become
+// too large
+
+
+var stackLargeDelimiters = ['(', ')', '[', '\\lbrack', ']', '\\rbrack', '\\{', '\\lbrace', '\\}', '\\rbrace', '\\lfloor', '\\rfloor', '\\lceil', '\\rceil', '\\surd']; // delimiters that always stack
+
+var stackAlwaysDelimiters = ["\\uparrow", '\\downarrow', "\\updownarrow", "\\Uparrow", '\\Downarrow', "\\Updownarrow", '|', '\\|', '\\vert', '\\Vert', '\\lvert', '\\rvert', '\\lVert', '\\rVert', '\\mvert', '\\mid', '\\lgroup', '\\rgroup', '\\lmoustache', '\\rmoustache']; // and delimiters that never stack
+
+var stackNeverDelimiters = ['<', '>', '\\langle', '\\rangle', '/', '\\backslash', '\\lt', '\\gt']; // Metrics of the different sizes. Found by looking at TeX's output of
+// $\bigl| // \Bigl| \biggl| \Biggl| \showlists$
+// Used to create stacked delimiters of appropriate sizes in makeSizedDelim.
+
+var sizeToMaxHeight = [0, 1.2, 1.8, 2.4, 3.0];
+/**
+ * Used to create a delimiter of a specific size, where `size` is 1, 2, 3, or 4.
+ * @memberof module:delimiters
+ * @private
+ */
+
+function makeSizedDelim(type, delim, size, context, classes) {
+  if (delim === '.') {
+    // Empty delimiters still count as elements, even though they don't
+    // show anything.
+    return makeNullFence(type, context, classes); // return makeSpan('', classes);
+  } // < and > turn into \langle and \rangle in delimiters
+
+
+  if (delim === '<' || delim === '\\lt') {
+    delim = '\\langle';
+  } else if (delim === '>' || delim === '\\gt') {
+    delim = '\\rangle';
+  } // Sized delimiters are never centered.
+
+
+  if (stackLargeDelimiters.includes(delim) || stackNeverDelimiters.includes(delim)) {
+    return makeLargeDelim(type, delim, size, false, context, classes);
+  } else if (stackAlwaysDelimiters.includes(delim)) {
+    return makeStackedDelim(type, delim, sizeToMaxHeight[size], false, context, classes);
+  }
+
+  console.assert(false, 'Unknown delimiter \'' + delim + '\'');
+  return null;
+}
+/**
+ * There are three different sequences of delimiter sizes that the delimiters
+ * follow depending on the kind of delimiter. This is used when creating custom
+ * sized delimiters to decide whether to create a small, large, or stacked
+ * delimiter.
+ *
+ * In real TeX, these sequences aren't explicitly defined, but are instead
+ * defined inside the font metrics. Since there are only three sequences that
+ * are possible for the delimiters that TeX defines, it is easier to just encode
+ * them explicitly here.
+ */
+// Delimiters that never stack try small delimiters and large delimiters only
+
+
+var stackNeverDelimiterSequence = [{
+  type: 'small',
+  mathstyle: _mathstyle.default.SCRIPTSCRIPT
+}, {
+  type: 'small',
+  mathstyle: _mathstyle.default.SCRIPT
+}, {
+  type: 'small',
+  mathstyle: _mathstyle.default.TEXT
+}, {
+  type: 'large',
+  size: 1
+}, {
+  type: 'large',
+  size: 2
+}, {
+  type: 'large',
+  size: 3
+}, {
+  type: 'large',
+  size: 4
+}]; // Delimiters that always stack try the small delimiters first, then stack
+
+var stackAlwaysDelimiterSequence = [{
+  type: 'small',
+  mathstyle: _mathstyle.default.SCRIPTSCRIPT
+}, {
+  type: 'small',
+  mathstyle: _mathstyle.default.SCRIPT
+}, {
+  type: 'small',
+  mathstyle: _mathstyle.default.TEXT
+}, {
+  type: 'stack'
+}]; // Delimiters that stack when large try the small and then large delimiters, and
+// stack afterwards
+
+var stackLargeDelimiterSequence = [{
+  type: 'small',
+  mathstyle: _mathstyle.default.SCRIPTSCRIPT
+}, {
+  type: 'small',
+  mathstyle: _mathstyle.default.SCRIPT
+}, {
+  type: 'small',
+  mathstyle: _mathstyle.default.TEXT
+}, {
+  type: 'large',
+  size: 1
+}, {
+  type: 'large',
+  size: 2
+}, {
+  type: 'large',
+  size: 3
+}, {
+  type: 'large',
+  size: 4
+}, {
+  type: 'stack'
+}];
+/**
+ * Get the font used in a delimiter based on what kind of delimiter it is.
+ */
+
+function delimTypeToFont(type) {
+  if (type.type === 'small') {
+    return 'Main-Regular';
+  } else if (type.type === 'large') {
+    return 'Size' + type.size + '-Regular';
+  }
+
+  console.assert(type.type === 'stack');
+  return 'Size4-Regular';
+}
+/**
+ * Traverse a sequence of types of delimiters to decide what kind of delimiter
+ * should be used to create a delimiter of the given height+depth.
+ * @param {string} delim: a character value (not a command)
+ * @memberof module:delimiters
+ * @private
+ */
+
+
+function traverseSequence(delim, height, sequence, context) {
+  // Here, we choose the index we should start at in the sequences. In smaller
+  // sizes (which correspond to larger numbers in style.size) we start earlier
+  // in the sequence. Thus, scriptscript starts at index 3-3=0, script starts
+  // at index 3-2=1, text starts at 3-1=2, and display starts at min(2,3-0)=2
+  var start = Math.min(2, 3 - context.mathstyle.size);
+
+  for (var i = start; i < sequence.length; i++) {
+    if (sequence[i].type === 'stack') {
+      // This is always the last delimiter, so we just break the loop now.
+      break;
+    }
+
+    var metrics = _fontMetrics.default.getCharacterMetrics(delim, delimTypeToFont(sequence[i]));
+
+    if (metrics.defaultMetrics) {
+      // If we don't have metrics info for this character,
+      // assume we'll construct as a small delimiter
+      return {
+        type: 'small',
+        mathstyle: _mathstyle.default.SCRIPT
+      };
+    }
+
+    var heightDepth = metrics.height + metrics.depth; // Small delimiters are scaled down versions of the same font, so we
+    // account for the style change size.
+
+    if (sequence[i].type === 'small') {
+      heightDepth *= sequence[i].mathstyle.sizeMultiplier;
+    } // Check if the delimiter at this size works for the given height.
+
+
+    if (heightDepth > height) {
+      return sequence[i];
+    }
+  } // If we reached the end of the sequence, return the last sequence element.
+
+
+  return sequence[sequence.length - 1];
+}
+/**
+ * Make a delimiter of a given height+depth, with optional centering. Here, we
+ * traverse the sequences, and create a delimiter that the sequence tells us to.
+ *
+ * @param {string} type 'mopen' or 'mclose'
+ * @param {string} delim
+ * @param {number} height
+ * @param {boolean} center
+ * @param {Context.Context} context
+ * @param {string[]} classes
+ * @memberof module:delimiters
+ * @private
+ */
+
+
+function makeCustomSizedDelim(type, delim, height, center, context, classes) {
+  if (!delim || delim.length === 0 || delim === '.') {
+    return makeNullFence(type, context, type);
+  }
+
+  if (delim === '<' || delim === '\\lt') {
+    delim = '\\langle';
+  } else if (delim === '>' || delim === '\\gt') {
+    delim = '\\rangle';
+  } // Decide what sequence to use
+
+
+  var sequence;
+
+  if (stackNeverDelimiters.includes(delim)) {
+    sequence = stackNeverDelimiterSequence;
+  } else if (stackLargeDelimiters.includes(delim)) {
+    sequence = stackLargeDelimiterSequence;
+  } else {
+    sequence = stackAlwaysDelimiterSequence;
+  } // Look through the sequence
+
+
+  var delimType = traverseSequence(_definitions.default.getValue('math', delim), height, sequence, context); // Depending on the sequence element we decided on, call the appropriate
+  // function.
+
+  if (delimType.type === 'small') {
+    return makeSmallDelim(type, delim, delimType.mathstyle, center, context, classes);
+  } else if (delimType.type === 'large') {
+    return makeLargeDelim(type, delim, delimType.size, center, context, classes);
+  }
+
+  console.assert(delimType.type === 'stack');
+  return makeStackedDelim(type, delim, height, center, context, classes);
+}
+/**
+ * Make a delimiter for use with `\left` and `\right`, given a height and depth
+ * of an expression that the delimiters surround.
+ * See tex.web:14994
+ * @memberof module:delimiters
+ * @private
+ */
+
+
+function makeLeftRightDelim(type, delim, height, depth, context, classes) {
+  // If this is the empty delimiter, return a null fence
+  if (delim === '.') {
+    return makeNullFence(type, context, classes);
+  } // We always center \left/\right delimiters, so the axis is always shifted
+
+
+  var axisHeight = context.mathstyle.metrics.axisHeight * context.mathstyle.sizeMultiplier; // Taken from TeX source, tex.web, function make_left_right
+
+  var delimiterFactor = 901; // plain.tex:327
+
+  var delimiterShortfall = 5.0 / _fontMetrics.default.METRICS.ptPerEm; // plain.tex:345
+
+  var delta2 = depth + axisHeight;
+  var delta1 = height - axisHeight;
+  delta1 = Math.max(delta2, delta1);
+  var delta = delta1 * delimiterFactor / 500;
+  delta2 = 2 * delta1 - delimiterShortfall;
+  delta = Math.max(delta, delta2); // const maxDistFromAxis = Math.max(height - axisHeight, depth + axisHeight);
+  // const totalHeight = Math.max(
+  //     // In real TeX, calculations are done using integral values which are
+  //     // 65536 per pt, or 655360 per em. So, the division here truncates in
+  //     // TeX but doesn't here, producing different results. If we wanted to
+  //     // exactly match TeX's calculation, we could do
+  //     //   Math.floor(655360 * maxDistFromAxis / 500) *
+  //     //    delimiterFactor / 655360
+  //     // (To see the difference, compare
+  //     //    x^{x^{\left(\rule{0.1em}{0.68em}\right)}}
+  //     // in TeX and KaTeX)
+  //     maxDistFromAxis / 500 * delimiterFactor,
+  //     2 * maxDistFromAxis - delimiterShortfall);
+  // Finally, we defer to `makeCustomSizedDelim` with our calculated total
+  // height
+
+  return makeCustomSizedDelim(type, delim, delta, true, context, classes);
+}
+/**
+ *
+ * @param {Context} context
+ * @param {string} [type] either 'mopen', 'mclose' or null
+ * @memberof module:delimiters
+ * @private
+ */
+
+
+function makeNullFence(type, context, classes) {
+  return _span.default.makeSpanOfType(type, '', 'sizing' + // @todo not useful, redundant with 'nulldelimiter'
+  // 'reset-' + context.size, 'size5',                 // @todo: that seems like a lot of resizing... do we need both?
+  context.mathstyle.adjustTo(_mathstyle.default.TEXT) + ' nulldelimiter ' // The null delimiter has a width, specified by class 'nulldelimiter'
+  + (classes || ''));
+} // Export the public interface for this module
+
+
+var _default = {
+  makeSizedDelim: makeSizedDelim,
+  makeCustomSizedDelim: makeCustomSizedDelim,
+  makeLeftRightDelim: makeLeftRightDelim
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/fontMetrics.js b/dist/core/fontMetrics.js
new file mode 100755
index 000000000..c4c6333b7
--- /dev/null
+++ b/dist/core/fontMetrics.js
@@ -0,0 +1,363 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = exports.METRICS = exports.SIGMAS = void 0;
+
+var _fontMetricsData = _interopRequireDefault(require("./fontMetricsData.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/* eslint no-unused-vars:0 */
+
+/**
+ * This module contains metrics regarding fonts and individual symbols. The sigma
+ * and xi variables, as well as the metricMap map contain data extracted from
+ * TeX, TeX font metrics, and the TTF files. These data are then exposed via the
+ * `metrics` variable and the getCharacterMetrics function.
+ * @module core/fontMetrics
+ * @private
+ */
+// This metricMap contains a mapping from font name and character code to character
+// metrics, including height, depth, italic correction, and skew (kern from the
+// character to the corresponding \skewchar)
+// This map is generated via `make metrics`. It should not be changed manually.
+// const hangulRegex = /[\uAC00-\uD7AF]/;
+// This regex combines
+// - Hiragana: [\u3040-\u309F]
+// - Katakana: [\u30A0-\u30FF]
+// - CJK ideograms: [\u4E00-\u9FAF]
+// - Hangul syllables: [\uAC00-\uD7AF]
+// Notably missing are half width Katakana and Romaji glyphs.
+var cjkRegex = /[\u3040-\u309F]|[\u30A0-\u30FF]|[\u4E00-\u9FAF]|[\uAC00-\uD7AF]/;
+/**
+ *
+ * In TeX, there are actually three sets of dimensions, one for each of
+ * textstyle, scriptstyle, and scriptscriptstyle.  These are provided in the
+ * the arrays below, in that order.
+ *
+ * The font metrics are stored in fonts cmsy10, cmsy7, and cmsy5 respectively.
+ * This was determined by running the following script:
+ *``` bash
+      latex -interaction=nonstopmode \
+      '\documentclass{article}\usepackage{amsmath}\begin{document}' \
+      '$a$ \expandafter\show\the\textfont2' \
+      '\expandafter\show\the\scriptfont2' \
+      '\expandafter\show\the\scriptscriptfont2' \
+      '\stop'
+  ```
+ * The metrics themselves were retrieved using the following commands:
+ * ``` bash
+      tftopl cmsy10
+      tftopl cmsy7
+      tftopl cmsy5
+    ```
+ *
+ * The output of each of these commands is quite lengthy.  The only part we
+ * care about is the FONTDIMEN section. Each value is measured in EMs.
+ * @memberof module:fontMetrics
+ */
+
+var SIGMAS = {
+  slant: [0.250, 0.250, 0.250],
+  // sigma1
+  space: [0.000, 0.000, 0.000],
+  // sigma2
+  stretch: [0.000, 0.000, 0.000],
+  // sigma3
+  shrink: [0.000, 0.000, 0.000],
+  // sigma4
+  xHeight: [0.431, 0.431, 0.431],
+  // sigma5
+  quad: [1.000, 1.171, 1.472],
+  // sigma6
+  extraSpace: [0.000, 0.000, 0.000],
+  // sigma7
+  num1: [0.677, 0.732, 0.925],
+  // sigma8
+  num2: [0.394, 0.384, 0.387],
+  // sigma9
+  num3: [0.444, 0.471, 0.504],
+  // sigma10
+  denom1: [0.686, 0.752, 1.025],
+  // sigma11
+  denom2: [0.345, 0.344, 0.532],
+  // sigma12
+  sup1: [0.413, 0.503, 0.504],
+  // sigma13
+  sup2: [0.363, 0.431, 0.404],
+  // sigma14
+  sup3: [0.289, 0.286, 0.294],
+  // sigma15
+  sub1: [0.150, 0.143, 0.200],
+  // sigma16
+  sub2: [0.247, 0.286, 0.400],
+  // sigma17
+  supDrop: [0.386, 0.353, 0.494],
+  // sigma18
+  subDrop: [0.050, 0.071, 0.100],
+  // sigma19
+  delim1: [2.390, 1.700, 1.980],
+  // sigma20
+  delim2: [1.010, 1.157, 1.420],
+  // sigma21
+  axisHeight: [0.250, 0.250, 0.250] // sigma22
+
+}; // These font metrics are extracted from TeX by using
+// \font\a=cmex10
+// \showthe\fontdimenX\a
+// where X is the corresponding variable number. These correspond to the font
+// parameters of the extension fonts (family 3). See the TeXbook, page 441.
+
+exports.SIGMAS = SIGMAS;
+var xi1 = 0;
+var xi2 = 0;
+var xi3 = 0;
+var xi4 = 0;
+var xi5 = 0.431;
+var xi6 = 1;
+var xi7 = 0;
+var xi8 = 0.04;
+var xi9 = 0.111;
+var xi10 = 0.166;
+var xi11 = 0.2;
+var xi12 = 0.6;
+var xi13 = 0.1; // This value determines how large a pt is, for metrics which are defined in
+// terms of pts.
+// This value is also used in katex.less; if you change it make sure the values
+// match.
+
+var ptPerEm = 10.0; // The space between adjacent `|` columns in an array definition. From
+// article.cls.txt:455
+
+var doubleRuleSep = 2.0 / ptPerEm;
+/**
+ * This is just a mapping from common names to real metrics
+ */
+
+var METRICS = {
+  defaultRuleThickness: xi8,
+  bigOpSpacing1: xi9,
+  bigOpSpacing2: xi10,
+  bigOpSpacing3: xi11,
+  bigOpSpacing4: xi12,
+  bigOpSpacing5: xi13,
+  ptPerEm: ptPerEm,
+  pxPerEm: ptPerEm * 4.0 / 3.0,
+  // A CSS pt is fixed at 1.333px
+  doubleRuleSep: 2.0 / ptPerEm,
+  arraycolsep: 5.0 / ptPerEm,
+  baselineskip: 12.0 / ptPerEm,
+  arrayrulewidth: 0.4 / ptPerEm,
+  fboxsep: 3 / ptPerEm,
+  // From letter.dtx:1626
+  fboxrule: 0.4 / ptPerEm // From letter.dtx:1627
+
+}; // These are very rough approximations.  We default to Times New Roman which
+// should have Latin-1 and Cyrillic characters, but may not depending on the
+// operating system.  The metrics do not account for extra height from the
+// accents.  In the case of Cyrillic characters which have both ascenders and
+// descenders we prefer approximations with ascenders, primarily to prevent
+// the fraction bar or root line from intersecting the glyph.
+// TODO(kevinb) allow union of multiple glyph metrics for better accuracy.
+
+exports.METRICS = METRICS;
+var extraCharacterMap = {
+  "\xA0": " ",
+  // NON-BREAKING SPACE is like space
+  "\u200B": " ",
+  // ZERO WIDTH SPACE is like space
+  // Latin-1
+  'Å': 'A',
+  'Ç': 'C',
+  'Ð': 'D',
+  'Þ': 'o',
+  'å': 'a',
+  'ç': 'c',
+  'ð': 'd',
+  'þ': 'o',
+  // Cyrillic
+  'А': 'A',
+  'Б': 'B',
+  'В': 'B',
+  'Г': 'F',
+  'Д': 'A',
+  'Е': 'E',
+  'Ж': 'K',
+  'З': '3',
+  'И': 'N',
+  'Й': 'N',
+  'К': 'K',
+  'Л': 'N',
+  'М': 'M',
+  'Н': 'H',
+  'О': 'O',
+  'П': 'N',
+  'Р': 'P',
+  'С': 'C',
+  'Т': 'T',
+  'У': 'y',
+  'Ф': 'O',
+  'Х': 'X',
+  'Ц': 'U',
+  'Ч': 'h',
+  'Ш': 'W',
+  'Щ': 'W',
+  'Ъ': 'B',
+  'Ы': 'X',
+  'Ь': 'B',
+  'Э': '3',
+  'Ю': 'X',
+  'Я': 'R',
+  'а': 'a',
+  'б': 'b',
+  'в': 'a',
+  'г': 'r',
+  'д': 'y',
+  'е': 'e',
+  'ж': 'm',
+  'з': 'e',
+  'и': 'n',
+  'й': 'n',
+  'к': 'n',
+  'л': 'n',
+  'м': 'm',
+  'н': 'n',
+  'о': 'o',
+  'п': 'n',
+  'р': 'p',
+  'с': 'c',
+  'т': 'o',
+  'у': 'y',
+  'ф': 'b',
+  'х': 'x',
+  'ц': 'n',
+  'ч': 'n',
+  'ш': 'w',
+  'щ': 'w',
+  'ъ': 'a',
+  'ы': 'm',
+  'ь': 'a',
+  'э': 'e',
+  'ю': 'm',
+  'я': 'r'
+};
+/**
+ * This function is a convenience function for looking up information in the
+ * metricMap table. It takes a character as a string, and a font name.
+ *
+ * Note: the `width` property may be undefined if fontMetricsData.js wasn't
+ * built using `Make extended_metrics`.
+ * @param {string} character 
+ * @param {string} fontCode 
+ * @memberof module:fontMetrics
+ * @private
+ */
+
+var getCharacterMetrics = function getCharacterMetrics(character, fontCode) {
+  var fontName = {
+    'cal': 'Caligraphic-Regular',
+    'ams': 'AMS-Regular',
+    'frak': 'Fraktur-Regular',
+    'bb': 'AMS-Regular',
+    'scr': 'Script-Regular',
+    'cmr': 'Main-Regular',
+    'cmtt': 'Typewriter-Regular',
+    'cmss': 'SansSerif-Regular'
+  }[fontCode] || fontCode; // console.assert(character.length === 1);
+  // console.assert(metricMap[fontName], 'Unknown font "' + fontName + '"');
+
+  var ch = character.charCodeAt(0);
+
+  if (character[0] in extraCharacterMap) {
+    ch = extraCharacterMap[character[0]].charCodeAt(0);
+  } else if (cjkRegex.test(character[0])) {
+    ch = 77; // 'M'.charCodeAt(0);
+  }
+
+  var metrics = _fontMetricsData.default[fontName][ch];
+
+  if (!metrics) {
+    // console.warn(
+    //     'No metrics for ' +
+    //     '"' + character + '" (U+' + ('000000' + ch.toString(16)).substr(-6) + ')' +
+    //     ' in font "' + fontName + '"');
+    // Assume default values.
+    // depth + height should be less than 1.0 em
+    return {
+      defaultMetrics: true,
+      depth: .20,
+      height: .70,
+      italic: 0,
+      skew: 0
+    };
+  }
+
+  if (metrics) {
+    return {
+      depth: metrics[0],
+      height: metrics[1],
+      italic: metrics[2],
+      skew: metrics[3]
+    };
+  }
+
+  return null;
+};
+/**
+ *
+ * @param {number|string} value If value is a string, it may be suffixed
+ * with a unit, which will override the `unit` paramter
+ * @param {string} unit
+ * @param {number} precision
+ */
+
+
+function convertDimenToEm(value, unit, precision) {
+  if (typeof value === 'string') {
+    var m = value.match(/([-+]?[0-9.]*)\s*([a-zA-Z]+)/);
+
+    if (!m) {
+      value = parseFloat(value);
+    } else {
+      value = parseFloat(m[1]);
+      unit = m[2].toLowerCase();
+    }
+  } // If the units are missing, TeX assumes 'pt'
+
+
+  var f = {
+    'pt': 1.0,
+    'mm': 7227 / 2540,
+    'cm': 7227 / 254,
+    'ex': 35271 / 8192,
+    'px': 3.0 / 4.0,
+    'em': METRICS.ptPerEm,
+    'bp': 803 / 800,
+    'dd': 1238 / 1157,
+    'pc': 12.0,
+    'in': 72.27,
+    'mu': 10 / 18
+  }[unit] || 1.0;
+
+  if (isFinite(precision)) {
+    var factor = Math.pow(10, precision);
+    return Math.round(value / METRICS.ptPerEm * f * factor) / factor;
+  }
+
+  return value / METRICS.ptPerEm * f;
+}
+
+function convertDimenToPx(value, unit) {
+  return convertDimenToEm(value, unit) * (4.0 / 3.0) * METRICS.ptPerEm;
+}
+
+var _default = {
+  toEm: convertDimenToEm,
+  toPx: convertDimenToPx,
+  METRICS: METRICS,
+  SIGMAS: SIGMAS,
+  getCharacterMetrics: getCharacterMetrics
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/fontMetricsData.js b/dist/core/fontMetricsData.js
new file mode 100755
index 000000000..1cf8765ef
--- /dev/null
+++ b/dist/core/fontMetricsData.js
@@ -0,0 +1,1759 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _default = {
+  'AMS-Regular': {
+    '65': [0, 0.68889, 0, 0],
+    '66': [0, 0.68889, 0, 0],
+    '67': [0, 0.68889, 0, 0],
+    '68': [0, 0.68889, 0, 0],
+    '69': [0, 0.68889, 0, 0],
+    '70': [0, 0.68889, 0, 0],
+    '71': [0, 0.68889, 0, 0],
+    '72': [0, 0.68889, 0, 0],
+    '73': [0, 0.68889, 0, 0],
+    '74': [0.16667, 0.68889, 0, 0],
+    '75': [0, 0.68889, 0, 0],
+    '76': [0, 0.68889, 0, 0],
+    '77': [0, 0.68889, 0, 0],
+    '78': [0, 0.68889, 0, 0],
+    '79': [0.16667, 0.68889, 0, 0],
+    '80': [0, 0.68889, 0, 0],
+    '81': [0.16667, 0.68889, 0, 0],
+    '82': [0, 0.68889, 0, 0],
+    '83': [0, 0.68889, 0, 0],
+    '84': [0, 0.68889, 0, 0],
+    '85': [0, 0.68889, 0, 0],
+    '86': [0, 0.68889, 0, 0],
+    '87': [0, 0.68889, 0, 0],
+    '88': [0, 0.68889, 0, 0],
+    '89': [0, 0.68889, 0, 0],
+    '90': [0, 0.68889, 0, 0],
+    '107': [0, 0.68889, 0, 0],
+    '165': [0, 0.675, 0.025, 0],
+    '174': [0.15559, 0.69224, 0, 0],
+    '240': [0, 0.68889, 0, 0],
+    '295': [0, 0.68889, 0, 0],
+    '710': [0, 0.825, 0, 0],
+    '732': [0, 0.9, 0, 0],
+    '770': [0, 0.825, 0, 0],
+    '771': [0, 0.9, 0, 0],
+    '989': [0.08167, 0.58167, 0, 0],
+    '1008': [0, 0.43056, 0.04028, 0],
+    '8245': [0, 0.54986, 0, 0],
+    '8463': [0, 0.68889, 0, 0],
+    '8487': [0, 0.68889, 0, 0],
+    '8498': [0, 0.68889, 0, 0],
+    '8502': [0, 0.68889, 0, 0],
+    '8503': [0, 0.68889, 0, 0],
+    '8504': [0, 0.68889, 0, 0],
+    '8513': [0, 0.68889, 0, 0],
+    '8592': [-0.03598, 0.46402, 0, 0],
+    '8594': [-0.03598, 0.46402, 0, 0],
+    '8602': [-0.13313, 0.36687, 0, 0],
+    '8603': [-0.13313, 0.36687, 0, 0],
+    '8606': [0.01354, 0.52239, 0, 0],
+    '8608': [0.01354, 0.52239, 0, 0],
+    '8610': [0.01354, 0.52239, 0, 0],
+    '8611': [0.01354, 0.52239, 0, 0],
+    '8619': [0, 0.54986, 0, 0],
+    '8620': [0, 0.54986, 0, 0],
+    '8621': [-0.13313, 0.37788, 0, 0],
+    '8622': [-0.13313, 0.36687, 0, 0],
+    '8624': [0, 0.69224, 0, 0],
+    '8625': [0, 0.69224, 0, 0],
+    '8630': [0, 0.43056, 0, 0],
+    '8631': [0, 0.43056, 0, 0],
+    '8634': [0.08198, 0.58198, 0, 0],
+    '8635': [0.08198, 0.58198, 0, 0],
+    '8638': [0.19444, 0.69224, 0, 0],
+    '8639': [0.19444, 0.69224, 0, 0],
+    '8642': [0.19444, 0.69224, 0, 0],
+    '8643': [0.19444, 0.69224, 0, 0],
+    '8644': [0.1808, 0.675, 0, 0],
+    '8646': [0.1808, 0.675, 0, 0],
+    '8647': [0.1808, 0.675, 0, 0],
+    '8648': [0.19444, 0.69224, 0, 0],
+    '8649': [0.1808, 0.675, 0, 0],
+    '8650': [0.19444, 0.69224, 0, 0],
+    '8651': [0.01354, 0.52239, 0, 0],
+    '8652': [0.01354, 0.52239, 0, 0],
+    '8653': [-0.13313, 0.36687, 0, 0],
+    '8654': [-0.13313, 0.36687, 0, 0],
+    '8655': [-0.13313, 0.36687, 0, 0],
+    '8666': [0.13667, 0.63667, 0, 0],
+    '8667': [0.13667, 0.63667, 0, 0],
+    '8669': [-0.13313, 0.37788, 0, 0],
+    '8672': [-0.064, 0.437, 0, 0],
+    '8674': [-0.064, 0.437, 0, 0],
+    '8705': [0, 0.825, 0, 0],
+    '8708': [0, 0.68889, 0, 0],
+    '8709': [0.08167, 0.58167, 0, 0],
+    '8717': [0, 0.43056, 0, 0],
+    '8722': [-0.03598, 0.46402, 0, 0],
+    '8724': [0.08198, 0.69224, 0, 0],
+    '8726': [0.08167, 0.58167, 0, 0],
+    '8733': [0, 0.69224, 0, 0],
+    '8736': [0, 0.69224, 0, 0],
+    '8737': [0, 0.69224, 0, 0],
+    '8738': [0.03517, 0.52239, 0, 0],
+    '8739': [0.08167, 0.58167, 0, 0],
+    '8740': [0.25142, 0.74111, 0, 0],
+    '8741': [0.08167, 0.58167, 0, 0],
+    '8742': [0.25142, 0.74111, 0, 0],
+    '8756': [0, 0.69224, 0, 0],
+    '8757': [0, 0.69224, 0, 0],
+    '8764': [-0.13313, 0.36687, 0, 0],
+    '8765': [-0.13313, 0.37788, 0, 0],
+    '8769': [-0.13313, 0.36687, 0, 0],
+    '8770': [-0.03625, 0.46375, 0, 0],
+    '8774': [0.30274, 0.79383, 0, 0],
+    '8776': [-0.01688, 0.48312, 0, 0],
+    '8778': [0.08167, 0.58167, 0, 0],
+    '8782': [0.06062, 0.54986, 0, 0],
+    '8783': [0.06062, 0.54986, 0, 0],
+    '8785': [0.08198, 0.58198, 0, 0],
+    '8786': [0.08198, 0.58198, 0, 0],
+    '8787': [0.08198, 0.58198, 0, 0],
+    '8790': [0, 0.69224, 0, 0],
+    '8791': [0.22958, 0.72958, 0, 0],
+    '8796': [0.08198, 0.91667, 0, 0],
+    '8806': [0.25583, 0.75583, 0, 0],
+    '8807': [0.25583, 0.75583, 0, 0],
+    '8808': [0.25142, 0.75726, 0, 0],
+    '8809': [0.25142, 0.75726, 0, 0],
+    '8812': [0.25583, 0.75583, 0, 0],
+    '8814': [0.20576, 0.70576, 0, 0],
+    '8815': [0.20576, 0.70576, 0, 0],
+    '8816': [0.30274, 0.79383, 0, 0],
+    '8817': [0.30274, 0.79383, 0, 0],
+    '8818': [0.22958, 0.72958, 0, 0],
+    '8819': [0.22958, 0.72958, 0, 0],
+    '8822': [0.1808, 0.675, 0, 0],
+    '8823': [0.1808, 0.675, 0, 0],
+    '8828': [0.13667, 0.63667, 0, 0],
+    '8829': [0.13667, 0.63667, 0, 0],
+    '8830': [0.22958, 0.72958, 0, 0],
+    '8831': [0.22958, 0.72958, 0, 0],
+    '8832': [0.20576, 0.70576, 0, 0],
+    '8833': [0.20576, 0.70576, 0, 0],
+    '8840': [0.30274, 0.79383, 0, 0],
+    '8841': [0.30274, 0.79383, 0, 0],
+    '8842': [0.13597, 0.63597, 0, 0],
+    '8843': [0.13597, 0.63597, 0, 0],
+    '8847': [0.03517, 0.54986, 0, 0],
+    '8848': [0.03517, 0.54986, 0, 0],
+    '8858': [0.08198, 0.58198, 0, 0],
+    '8859': [0.08198, 0.58198, 0, 0],
+    '8861': [0.08198, 0.58198, 0, 0],
+    '8862': [0, 0.675, 0, 0],
+    '8863': [0, 0.675, 0, 0],
+    '8864': [0, 0.675, 0, 0],
+    '8865': [0, 0.675, 0, 0],
+    '8872': [0, 0.69224, 0, 0],
+    '8873': [0, 0.69224, 0, 0],
+    '8874': [0, 0.69224, 0, 0],
+    '8876': [0, 0.68889, 0, 0],
+    '8877': [0, 0.68889, 0, 0],
+    '8878': [0, 0.68889, 0, 0],
+    '8879': [0, 0.68889, 0, 0],
+    '8882': [0.03517, 0.54986, 0, 0],
+    '8883': [0.03517, 0.54986, 0, 0],
+    '8884': [0.13667, 0.63667, 0, 0],
+    '8885': [0.13667, 0.63667, 0, 0],
+    '8888': [0, 0.54986, 0, 0],
+    '8890': [0.19444, 0.43056, 0, 0],
+    '8891': [0.19444, 0.69224, 0, 0],
+    '8892': [0.19444, 0.69224, 0, 0],
+    '8901': [0, 0.54986, 0, 0],
+    '8903': [0.08167, 0.58167, 0, 0],
+    '8905': [0.08167, 0.58167, 0, 0],
+    '8906': [0.08167, 0.58167, 0, 0],
+    '8907': [0, 0.69224, 0, 0],
+    '8908': [0, 0.69224, 0, 0],
+    '8909': [-0.03598, 0.46402, 0, 0],
+    '8910': [0, 0.54986, 0, 0],
+    '8911': [0, 0.54986, 0, 0],
+    '8912': [0.03517, 0.54986, 0, 0],
+    '8913': [0.03517, 0.54986, 0, 0],
+    '8914': [0, 0.54986, 0, 0],
+    '8915': [0, 0.54986, 0, 0],
+    '8916': [0, 0.69224, 0, 0],
+    '8918': [0.0391, 0.5391, 0, 0],
+    '8919': [0.0391, 0.5391, 0, 0],
+    '8920': [0.03517, 0.54986, 0, 0],
+    '8921': [0.03517, 0.54986, 0, 0],
+    '8922': [0.38569, 0.88569, 0, 0],
+    '8923': [0.38569, 0.88569, 0, 0],
+    '8926': [0.13667, 0.63667, 0, 0],
+    '8927': [0.13667, 0.63667, 0, 0],
+    '8928': [0.30274, 0.79383, 0, 0],
+    '8929': [0.30274, 0.79383, 0, 0],
+    '8934': [0.23222, 0.74111, 0, 0],
+    '8935': [0.23222, 0.74111, 0, 0],
+    '8936': [0.23222, 0.74111, 0, 0],
+    '8937': [0.23222, 0.74111, 0, 0],
+    '8938': [0.20576, 0.70576, 0, 0],
+    '8939': [0.20576, 0.70576, 0, 0],
+    '8940': [0.30274, 0.79383, 0, 0],
+    '8941': [0.30274, 0.79383, 0, 0],
+    '8994': [0.19444, 0.69224, 0, 0],
+    '8995': [0.19444, 0.69224, 0, 0],
+    '9416': [0.15559, 0.69224, 0, 0],
+    '9484': [0, 0.69224, 0, 0],
+    '9488': [0, 0.69224, 0, 0],
+    '9492': [0, 0.37788, 0, 0],
+    '9496': [0, 0.37788, 0, 0],
+    '9585': [0.19444, 0.68889, 0, 0],
+    '9586': [0.19444, 0.74111, 0, 0],
+    '9632': [0, 0.675, 0, 0],
+    '9633': [0, 0.675, 0, 0],
+    '9650': [0, 0.54986, 0, 0],
+    '9651': [0, 0.54986, 0, 0],
+    '9654': [0.03517, 0.54986, 0, 0],
+    '9660': [0, 0.54986, 0, 0],
+    '9661': [0, 0.54986, 0, 0],
+    '9664': [0.03517, 0.54986, 0, 0],
+    '9674': [0.11111, 0.69224, 0, 0],
+    '9733': [0.19444, 0.69224, 0, 0],
+    '10003': [0, 0.69224, 0, 0],
+    '10016': [0, 0.69224, 0, 0],
+    '10731': [0.11111, 0.69224, 0, 0],
+    '10846': [0.19444, 0.75583, 0, 0],
+    '10877': [0.13667, 0.63667, 0, 0],
+    '10878': [0.13667, 0.63667, 0, 0],
+    '10885': [0.25583, 0.75583, 0, 0],
+    '10886': [0.25583, 0.75583, 0, 0],
+    '10887': [0.13597, 0.63597, 0, 0],
+    '10888': [0.13597, 0.63597, 0, 0],
+    '10889': [0.26167, 0.75726, 0, 0],
+    '10890': [0.26167, 0.75726, 0, 0],
+    '10891': [0.48256, 0.98256, 0, 0],
+    '10892': [0.48256, 0.98256, 0, 0],
+    '10901': [0.13667, 0.63667, 0, 0],
+    '10902': [0.13667, 0.63667, 0, 0],
+    '10933': [0.25142, 0.75726, 0, 0],
+    '10934': [0.25142, 0.75726, 0, 0],
+    '10935': [0.26167, 0.75726, 0, 0],
+    '10936': [0.26167, 0.75726, 0, 0],
+    '10937': [0.26167, 0.75726, 0, 0],
+    '10938': [0.26167, 0.75726, 0, 0],
+    '10949': [0.25583, 0.75583, 0, 0],
+    '10950': [0.25583, 0.75583, 0, 0],
+    '10955': [0.28481, 0.79383, 0, 0],
+    '10956': [0.28481, 0.79383, 0, 0],
+    '57350': [0.08167, 0.58167, 0, 0],
+    '57351': [0.08167, 0.58167, 0, 0],
+    '57352': [0.08167, 0.58167, 0, 0],
+    '57353': [0, 0.43056, 0.04028, 0],
+    '57356': [0.25142, 0.75726, 0, 0],
+    '57357': [0.25142, 0.75726, 0, 0],
+    '57358': [0.41951, 0.91951, 0, 0],
+    '57359': [0.30274, 0.79383, 0, 0],
+    '57360': [0.30274, 0.79383, 0, 0],
+    '57361': [0.41951, 0.91951, 0, 0],
+    '57366': [0.25142, 0.75726, 0, 0],
+    '57367': [0.25142, 0.75726, 0, 0],
+    '57368': [0.25142, 0.75726, 0, 0],
+    '57369': [0.25142, 0.75726, 0, 0],
+    '57370': [0.13597, 0.63597, 0, 0],
+    '57371': [0.13597, 0.63597, 0, 0]
+  },
+  'Caligraphic-Regular': {
+    '48': [0, 0.43056, 0, 0],
+    '49': [0, 0.43056, 0, 0],
+    '50': [0, 0.43056, 0, 0],
+    '51': [0.19444, 0.43056, 0, 0],
+    '52': [0.19444, 0.43056, 0, 0],
+    '53': [0.19444, 0.43056, 0, 0],
+    '54': [0, 0.64444, 0, 0],
+    '55': [0.19444, 0.43056, 0, 0],
+    '56': [0, 0.64444, 0, 0],
+    '57': [0.19444, 0.43056, 0, 0],
+    '65': [0, 0.68333, 0, 0.19445],
+    '66': [0, 0.68333, 0.03041, 0.13889],
+    '67': [0, 0.68333, 0.05834, 0.13889],
+    '68': [0, 0.68333, 0.02778, 0.08334],
+    '69': [0, 0.68333, 0.08944, 0.11111],
+    '70': [0, 0.68333, 0.09931, 0.11111],
+    '71': [0.09722, 0.68333, 0.0593, 0.11111],
+    '72': [0, 0.68333, 0.00965, 0.11111],
+    '73': [0, 0.68333, 0.07382, 0],
+    '74': [0.09722, 0.68333, 0.18472, 0.16667],
+    '75': [0, 0.68333, 0.01445, 0.05556],
+    '76': [0, 0.68333, 0, 0.13889],
+    '77': [0, 0.68333, 0, 0.13889],
+    '78': [0, 0.68333, 0.14736, 0.08334],
+    '79': [0, 0.68333, 0.02778, 0.11111],
+    '80': [0, 0.68333, 0.08222, 0.08334],
+    '81': [0.09722, 0.68333, 0, 0.11111],
+    '82': [0, 0.68333, 0, 0.08334],
+    '83': [0, 0.68333, 0.075, 0.13889],
+    '84': [0, 0.68333, 0.25417, 0],
+    '85': [0, 0.68333, 0.09931, 0.08334],
+    '86': [0, 0.68333, 0.08222, 0],
+    '87': [0, 0.68333, 0.08222, 0.08334],
+    '88': [0, 0.68333, 0.14643, 0.13889],
+    '89': [0.09722, 0.68333, 0.08222, 0.08334],
+    '90': [0, 0.68333, 0.07944, 0.13889]
+  },
+  'Fraktur-Regular': {
+    '33': [0, 0.69141, 0, 0],
+    '34': [0, 0.69141, 0, 0],
+    '38': [0, 0.69141, 0, 0],
+    '39': [0, 0.69141, 0, 0],
+    '40': [0.24982, 0.74947, 0, 0],
+    '41': [0.24982, 0.74947, 0, 0],
+    '42': [0, 0.62119, 0, 0],
+    '43': [0.08319, 0.58283, 0, 0],
+    '44': [0, 0.10803, 0, 0],
+    '45': [0.08319, 0.58283, 0, 0],
+    '46': [0, 0.10803, 0, 0],
+    '47': [0.24982, 0.74947, 0, 0],
+    '48': [0, 0.47534, 0, 0],
+    '49': [0, 0.47534, 0, 0],
+    '50': [0, 0.47534, 0, 0],
+    '51': [0.18906, 0.47534, 0, 0],
+    '52': [0.18906, 0.47534, 0, 0],
+    '53': [0.18906, 0.47534, 0, 0],
+    '54': [0, 0.69141, 0, 0],
+    '55': [0.18906, 0.47534, 0, 0],
+    '56': [0, 0.69141, 0, 0],
+    '57': [0.18906, 0.47534, 0, 0],
+    '58': [0, 0.47534, 0, 0],
+    '59': [0.12604, 0.47534, 0, 0],
+    '61': [-0.13099, 0.36866, 0, 0],
+    '63': [0, 0.69141, 0, 0],
+    '65': [0, 0.69141, 0, 0],
+    '66': [0, 0.69141, 0, 0],
+    '67': [0, 0.69141, 0, 0],
+    '68': [0, 0.69141, 0, 0],
+    '69': [0, 0.69141, 0, 0],
+    '70': [0.12604, 0.69141, 0, 0],
+    '71': [0, 0.69141, 0, 0],
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+    '90': [0, 0.7, 0.24037, 0]
+  },
+  'Size1-Regular': {
+    '40': [0.35001, 0.85, 0, 0],
+    '41': [0.35001, 0.85, 0, 0],
+    '47': [0.35001, 0.85, 0, 0],
+    '91': [0.35001, 0.85, 0, 0],
+    '92': [0.35001, 0.85, 0, 0],
+    '93': [0.35001, 0.85, 0, 0],
+    '123': [0.35001, 0.85, 0, 0],
+    '125': [0.35001, 0.85, 0, 0],
+    '710': [0, 0.72222, 0, 0],
+    '732': [0, 0.72222, 0, 0],
+    '770': [0, 0.72222, 0, 0],
+    '771': [0, 0.72222, 0, 0],
+    '8214': [-0.00099, 0.601, 0, 0],
+    '8593': [1e-05, 0.6, 0, 0],
+    '8595': [1e-05, 0.6, 0, 0],
+    '8657': [1e-05, 0.6, 0, 0],
+    '8659': [1e-05, 0.6, 0, 0],
+    '8719': [0.25001, 0.75, 0, 0],
+    '8720': [0.25001, 0.75, 0, 0],
+    '8721': [0.25001, 0.75, 0, 0],
+    '8730': [0.35001, 0.85, 0, 0],
+    '8739': [-0.00599, 0.606, 0, 0],
+    '8741': [-0.00599, 0.606, 0, 0],
+    '8747': [0.30612, 0.805, 0.19445, 0],
+    '8748': [0.306, 0.805, 0.19445, 0],
+    '8749': [0.306, 0.805, 0.19445, 0],
+    '8750': [0.30612, 0.805, 0.19445, 0],
+    '8896': [0.25001, 0.75, 0, 0],
+    '8897': [0.25001, 0.75, 0, 0],
+    '8898': [0.25001, 0.75, 0, 0],
+    '8899': [0.25001, 0.75, 0, 0],
+    '8968': [0.35001, 0.85, 0, 0],
+    '8969': [0.35001, 0.85, 0, 0],
+    '8970': [0.35001, 0.85, 0, 0],
+    '8971': [0.35001, 0.85, 0, 0],
+    '9168': [-0.00099, 0.601, 0, 0],
+    '10216': [0.35001, 0.85, 0, 0],
+    '10217': [0.35001, 0.85, 0, 0],
+    '10752': [0.25001, 0.75, 0, 0],
+    '10753': [0.25001, 0.75, 0, 0],
+    '10754': [0.25001, 0.75, 0, 0],
+    '10756': [0.25001, 0.75, 0, 0],
+    '10758': [0.25001, 0.75, 0, 0]
+  },
+  'Size2-Regular': {
+    '40': [0.65002, 1.15, 0, 0],
+    '41': [0.65002, 1.15, 0, 0],
+    '47': [0.65002, 1.15, 0, 0],
+    '91': [0.65002, 1.15, 0, 0],
+    '92': [0.65002, 1.15, 0, 0],
+    '93': [0.65002, 1.15, 0, 0],
+    '123': [0.65002, 1.15, 0, 0],
+    '125': [0.65002, 1.15, 0, 0],
+    '710': [0, 0.75, 0, 0],
+    '732': [0, 0.75, 0, 0],
+    '770': [0, 0.75, 0, 0],
+    '771': [0, 0.75, 0, 0],
+    '8719': [0.55001, 1.05, 0, 0],
+    '8720': [0.55001, 1.05, 0, 0],
+    '8721': [0.55001, 1.05, 0, 0],
+    '8730': [0.65002, 1.15, 0, 0],
+    '8747': [0.86225, 1.36, 0.44445, 0],
+    '8748': [0.862, 1.36, 0.44445, 0],
+    '8749': [0.862, 1.36, 0.44445, 0],
+    '8750': [0.86225, 1.36, 0.44445, 0],
+    '8896': [0.55001, 1.05, 0, 0],
+    '8897': [0.55001, 1.05, 0, 0],
+    '8898': [0.55001, 1.05, 0, 0],
+    '8899': [0.55001, 1.05, 0, 0],
+    '8968': [0.65002, 1.15, 0, 0],
+    '8969': [0.65002, 1.15, 0, 0],
+    '8970': [0.65002, 1.15, 0, 0],
+    '8971': [0.65002, 1.15, 0, 0],
+    '10216': [0.65002, 1.15, 0, 0],
+    '10217': [0.65002, 1.15, 0, 0],
+    '10752': [0.55001, 1.05, 0, 0],
+    '10753': [0.55001, 1.05, 0, 0],
+    '10754': [0.55001, 1.05, 0, 0],
+    '10756': [0.55001, 1.05, 0, 0],
+    '10758': [0.55001, 1.05, 0, 0]
+  },
+  'Size3-Regular': {
+    '40': [0.95003, 1.45, 0, 0],
+    '41': [0.95003, 1.45, 0, 0],
+    '47': [0.95003, 1.45, 0, 0],
+    '91': [0.95003, 1.45, 0, 0],
+    '92': [0.95003, 1.45, 0, 0],
+    '93': [0.95003, 1.45, 0, 0],
+    '123': [0.95003, 1.45, 0, 0],
+    '125': [0.95003, 1.45, 0, 0],
+    '710': [0, 0.75, 0, 0],
+    '732': [0, 0.75, 0, 0],
+    '770': [0, 0.75, 0, 0],
+    '771': [0, 0.75, 0, 0],
+    '8730': [0.95003, 1.45, 0, 0],
+    '8968': [0.95003, 1.45, 0, 0],
+    '8969': [0.95003, 1.45, 0, 0],
+    '8970': [0.95003, 1.45, 0, 0],
+    '8971': [0.95003, 1.45, 0, 0],
+    '10216': [0.95003, 1.45, 0, 0],
+    '10217': [0.95003, 1.45, 0, 0]
+  },
+  'Size4-Regular': {
+    '40': [1.25003, 1.75, 0, 0],
+    '41': [1.25003, 1.75, 0, 0],
+    '47': [1.25003, 1.75, 0, 0],
+    '91': [1.25003, 1.75, 0, 0],
+    '92': [1.25003, 1.75, 0, 0],
+    '93': [1.25003, 1.75, 0, 0],
+    '123': [1.25003, 1.75, 0, 0],
+    '125': [1.25003, 1.75, 0, 0],
+    '710': [0, 0.825, 0, 0],
+    '732': [0, 0.825, 0, 0],
+    '770': [0, 0.825, 0, 0],
+    '771': [0, 0.825, 0, 0],
+    '8730': [1.25003, 1.75, 0, 0],
+    '8968': [1.25003, 1.75, 0, 0],
+    '8969': [1.25003, 1.75, 0, 0],
+    '8970': [1.25003, 1.75, 0, 0],
+    '8971': [1.25003, 1.75, 0, 0],
+    '9115': [0.64502, 1.155, 0, 0],
+    '9116': [1e-05, 0.6, 0, 0],
+    '9117': [0.64502, 1.155, 0, 0],
+    '9118': [0.64502, 1.155, 0, 0],
+    '9119': [1e-05, 0.6, 0, 0],
+    '9120': [0.64502, 1.155, 0, 0],
+    '9121': [0.64502, 1.155, 0, 0],
+    '9122': [-0.00099, 0.601, 0, 0],
+    '9123': [0.64502, 1.155, 0, 0],
+    '9124': [0.64502, 1.155, 0, 0],
+    '9125': [-0.00099, 0.601, 0, 0],
+    '9126': [0.64502, 1.155, 0, 0],
+    '9127': [1e-05, 0.9, 0, 0],
+    '9128': [0.65002, 1.15, 0, 0],
+    '9129': [0.90001, 0, 0, 0],
+    '9130': [0, 0.3, 0, 0],
+    '9131': [1e-05, 0.9, 0, 0],
+    '9132': [0.65002, 1.15, 0, 0],
+    '9133': [0.90001, 0, 0, 0],
+    '9143': [0.88502, 0.915, 0, 0],
+    '10216': [1.25003, 1.75, 0, 0],
+    '10217': [1.25003, 1.75, 0, 0],
+    '57344': [-0.00499, 0.605, 0, 0],
+    '57345': [-0.00499, 0.605, 0, 0],
+    '57680': [0, 0.12, 0, 0],
+    '57681': [0, 0.12, 0, 0],
+    '57682': [0, 0.12, 0, 0],
+    '57683': [0, 0.12, 0, 0]
+  },
+  'Typewriter-Regular': {
+    '33': [0, 0.61111, 0, 0],
+    '34': [0, 0.61111, 0, 0],
+    '35': [0, 0.61111, 0, 0],
+    '36': [0.08333, 0.69444, 0, 0],
+    '37': [0.08333, 0.69444, 0, 0],
+    '38': [0, 0.61111, 0, 0],
+    '39': [0, 0.61111, 0, 0],
+    '40': [0.08333, 0.69444, 0, 0],
+    '41': [0.08333, 0.69444, 0, 0],
+    '42': [0, 0.52083, 0, 0],
+    '43': [-0.08056, 0.53055, 0, 0],
+    '44': [0.13889, 0.125, 0, 0],
+    '45': [-0.08056, 0.53055, 0, 0],
+    '46': [0, 0.125, 0, 0],
+    '47': [0.08333, 0.69444, 0, 0],
+    '48': [0, 0.61111, 0, 0],
+    '49': [0, 0.61111, 0, 0],
+    '50': [0, 0.61111, 0, 0],
+    '51': [0, 0.61111, 0, 0],
+    '52': [0, 0.61111, 0, 0],
+    '53': [0, 0.61111, 0, 0],
+    '54': [0, 0.61111, 0, 0],
+    '55': [0, 0.61111, 0, 0],
+    '56': [0, 0.61111, 0, 0],
+    '57': [0, 0.61111, 0, 0],
+    '58': [0, 0.43056, 0, 0],
+    '59': [0.13889, 0.43056, 0, 0],
+    '60': [-0.05556, 0.55556, 0, 0],
+    '61': [-0.19549, 0.41562, 0, 0],
+    '62': [-0.05556, 0.55556, 0, 0],
+    '63': [0, 0.61111, 0, 0],
+    '64': [0, 0.61111, 0, 0],
+    '65': [0, 0.61111, 0, 0],
+    '66': [0, 0.61111, 0, 0],
+    '67': [0, 0.61111, 0, 0],
+    '68': [0, 0.61111, 0, 0],
+    '69': [0, 0.61111, 0, 0],
+    '70': [0, 0.61111, 0, 0],
+    '71': [0, 0.61111, 0, 0],
+    '72': [0, 0.61111, 0, 0],
+    '73': [0, 0.61111, 0, 0],
+    '74': [0, 0.61111, 0, 0],
+    '75': [0, 0.61111, 0, 0],
+    '76': [0, 0.61111, 0, 0],
+    '77': [0, 0.61111, 0, 0],
+    '78': [0, 0.61111, 0, 0],
+    '79': [0, 0.61111, 0, 0],
+    '80': [0, 0.61111, 0, 0],
+    '81': [0.13889, 0.61111, 0, 0],
+    '82': [0, 0.61111, 0, 0],
+    '83': [0, 0.61111, 0, 0],
+    '84': [0, 0.61111, 0, 0],
+    '85': [0, 0.61111, 0, 0],
+    '86': [0, 0.61111, 0, 0],
+    '87': [0, 0.61111, 0, 0],
+    '88': [0, 0.61111, 0, 0],
+    '89': [0, 0.61111, 0, 0],
+    '90': [0, 0.61111, 0, 0],
+    '91': [0.08333, 0.69444, 0, 0],
+    '92': [0.08333, 0.69444, 0, 0],
+    '93': [0.08333, 0.69444, 0, 0],
+    '94': [0, 0.61111, 0, 0],
+    '95': [0.09514, 0, 0, 0],
+    '96': [0, 0.61111, 0, 0],
+    '97': [0, 0.43056, 0, 0],
+    '98': [0, 0.61111, 0, 0],
+    '99': [0, 0.43056, 0, 0],
+    '100': [0, 0.61111, 0, 0],
+    '101': [0, 0.43056, 0, 0],
+    '102': [0, 0.61111, 0, 0],
+    '103': [0.22222, 0.43056, 0, 0],
+    '104': [0, 0.61111, 0, 0],
+    '105': [0, 0.61111, 0, 0],
+    '106': [0.22222, 0.61111, 0, 0],
+    '107': [0, 0.61111, 0, 0],
+    '108': [0, 0.61111, 0, 0],
+    '109': [0, 0.43056, 0, 0],
+    '110': [0, 0.43056, 0, 0],
+    '111': [0, 0.43056, 0, 0],
+    '112': [0.22222, 0.43056, 0, 0],
+    '113': [0.22222, 0.43056, 0, 0],
+    '114': [0, 0.43056, 0, 0],
+    '115': [0, 0.43056, 0, 0],
+    '116': [0, 0.55358, 0, 0],
+    '117': [0, 0.43056, 0, 0],
+    '118': [0, 0.43056, 0, 0],
+    '119': [0, 0.43056, 0, 0],
+    '120': [0, 0.43056, 0, 0],
+    '121': [0.22222, 0.43056, 0, 0],
+    '122': [0, 0.43056, 0, 0],
+    '123': [0.08333, 0.69444, 0, 0],
+    '124': [0.08333, 0.69444, 0, 0],
+    '125': [0.08333, 0.69444, 0, 0],
+    '126': [0, 0.61111, 0, 0],
+    '127': [0, 0.61111, 0, 0],
+    '305': [0, 0.43056, 0, 0],
+    '567': [0.22222, 0.43056, 0, 0],
+    '768': [0, 0.61111, 0, 0],
+    '769': [0, 0.61111, 0, 0],
+    '770': [0, 0.61111, 0, 0],
+    '771': [0, 0.61111, 0, 0],
+    '772': [0, 0.56555, 0, 0],
+    '774': [0, 0.61111, 0, 0],
+    '776': [0, 0.61111, 0, 0],
+    '778': [0, 0.61111, 0, 0],
+    '780': [0, 0.56597, 0, 0],
+    '915': [0, 0.61111, 0, 0],
+    '916': [0, 0.61111, 0, 0],
+    '920': [0, 0.61111, 0, 0],
+    '923': [0, 0.61111, 0, 0],
+    '926': [0, 0.61111, 0, 0],
+    '928': [0, 0.61111, 0, 0],
+    '931': [0, 0.61111, 0, 0],
+    '933': [0, 0.61111, 0, 0],
+    '934': [0, 0.61111, 0, 0],
+    '936': [0, 0.61111, 0, 0],
+    '937': [0, 0.61111, 0, 0],
+    '2018': [0, 0.61111, 0, 0],
+    '2019': [0, 0.61111, 0, 0],
+    '8242': [0, 0.61111, 0, 0]
+  }
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/grapheme-splitter.js b/dist/core/grapheme-splitter.js
new file mode 100644
index 000000000..ed178ce70
--- /dev/null
+++ b/dist/core/grapheme-splitter.js
@@ -0,0 +1,1510 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+/*
+Breaks a JavaScript string into individual user-perceived "characters" 
+called extended grapheme clusters by implementing the Unicode UAX-29 standard, version 8.0.0
+
+Usage:
+var splitter = new GraphemeSplitter();
+//returns an array of strings, one string for each grapheme cluster
+var graphemes = splitter.splitGraphemes(string); 
+
+*/
+var CR = 0,
+    LF = 1,
+    Control = 2,
+    Extend = 3,
+    Regional_Indicator = 4,
+    SpacingMark = 5,
+    L = 6,
+    V = 7,
+    T = 8,
+    LV = 9,
+    LVT = 10,
+    Other = 11,
+    Skin_Tone = 12; // Private function, gets a Unicode code point from a JavaScript UTF-16 string
+// handling surrogate pairs appropriately
+
+function codePointAt(str, idx) {
+  idx = idx || 0;
+  var code = str.charCodeAt(idx); // if a high surrogate
+
+  if (0xD800 <= code && code <= 0xDBFF && idx < str.length - 1) {
+    var hi = code;
+    var low = str.charCodeAt(idx + 1);
+
+    if (0xDC00 <= low && low <= 0xDFFF) {
+      return (hi - 0xD800) * 0x400 + (low - 0xDC00) + 0x10000;
+    }
+
+    return hi;
+  } // if a low surrogate
+
+
+  if (0xDC00 <= code && code <= 0xDFFF && idx >= 1) {
+    var _hi = str.charCodeAt(idx - 1);
+
+    var _low = code;
+
+    if (0xD800 <= _hi && _hi <= 0xDBFF) {
+      return (_hi - 0xD800) * 0x400 + (_low - 0xDC00) + 0x10000;
+    }
+
+    return _low;
+  } //just return the char if an unmatched surrogate half or a 
+  //single-char codepoint
+
+
+  return code;
+} // Private function, returns whether a break is allowed between the 
+// two given grapheme breaking classes
+
+
+function shouldBreak(previous, current) {
+  if (previous === Other && current === Skin_Tone) {
+    // From version 10. Skin tone modifiers with emojis
+    return false;
+  } else if (previous === Extend && current === Other) {
+    // From version 10. Combining emojis, such as the Bowie emoji
+    return false;
+  } else if (previous === Other && current === Extend) {
+    // From version 10. Combining emojis, such as skin tones emojis
+    return false;
+  } else if (previous === CR && current === LF) {
+    // GB3. CR X LF
+    return false;
+  } else if (previous === Control || previous === CR || previous === LF) {
+    // GB4. (Control|CR|LF) ÷
+    return true;
+  } else if (current === Control || current === CR || current === LF) {
+    // GB5. ÷ (Control|CR|LF)
+    return true;
+  } else if (previous === L && (current === L || current === V || current === LV || current === LVT)) {
+    // GB6. L X (L|V|LV|LVT)
+    return false;
+  } else if ((previous === LV || previous === V) && ( // GB7. (LV|V) X (V|T)
+  current === V || current === T)) {
+    return false;
+  } else if ((previous === LVT || previous === T) && current === T) {
+    // GB8. (LVT|T) X (T)
+    return false;
+  } else if (previous === Regional_Indicator && current === Regional_Indicator) {
+    // GB8a. Regional_Indicator X Regional_Indicator
+    return false;
+  } else if (current === Extend) {
+    // GB9. X Extend
+    return false;
+  } else if (current === SpacingMark) {
+    // GB9a. X SpacingMark
+    return false;
+  } // GB9b. Prepend X (there are currently no characters with this class)
+  // else if previous is Prepend
+  //   return false
+  // GB10. Any ÷ Any
+
+
+  return true;
+} // Returns the next grapheme break in the string after the given index
+
+
+function nextBreak(string, index) {
+  index = index || 0;
+
+  if (index < 0) {
+    return 0;
+  }
+
+  if (index >= string.length - 1) {
+    return string.length;
+  }
+
+  var prev = getGraphemeBreakProperty(codePointAt(string, index));
+
+  for (var i = index + 1; i < string.length; i++) {
+    // check for already processed low surrogates
+    if (0xd800 <= string.charCodeAt(i - 1) && string.charCodeAt(i - 1) <= 0xdbff && 0xdc00 <= string.charCodeAt(i) && string.charCodeAt(i) <= 0xdfff) {
+      continue;
+    }
+
+    var next = getGraphemeBreakProperty(codePointAt(string, i));
+
+    if (shouldBreak(prev, next)) {
+      return i;
+    }
+
+    prev = next;
+  }
+
+  return string.length;
+} // Breaks the given string into an array of grapheme cluster strings
+
+
+function splitGraphemes(str) {
+  // If it's all ASCII, short-circuit the grapheme splitting...
+  if (/^[\x20-\xFF]*$/.test(str)) return str;
+  var res = [];
+  var index = 0;
+  var brk;
+
+  while ((brk = nextBreak(str, index)) < str.length) {
+    res.push(str.slice(index, brk));
+    index = brk;
+  }
+
+  if (index < str.length) {
+    res.push(str.slice(index));
+  }
+
+  return res;
+} // Returns the number of grapheme clusters there are in the given string
+
+
+function countGraphemes(str) {
+  var count = 0;
+  var index = 0;
+  var brk;
+
+  while ((brk = nextBreak(str, index)) < str.length) {
+    index = brk;
+    count++;
+  }
+
+  if (index < str.length) {
+    count++;
+  }
+
+  return count;
+} //given a Unicode code point, determines this symbol's grapheme break property
+
+
+function getGraphemeBreakProperty(code) {
+  //grapheme break property for Unicode 8.0.0, 
+  //taken from http://www.unicode.org/Public/8.0.0/ucd/auxiliary/GraphemeBreakProperty.txt
+  //and adapted to JavaScript rules
+  if (0x000D === code // Cc       <control-000D>
+  ) {
+      return CR;
+    }
+
+  if (0x000A === code // Cc       <control-000A>
+  ) {
+      return LF;
+    }
+
+  if (0x0000 <= code && code <= 0x0009 || // Cc  [10] <control-0000>..<control-0009>
+  0x000B <= code && code <= 0x000C || // Cc   [2] <control-000B>..<control-000C>
+  0x000E <= code && code <= 0x001F || // Cc  [18] <control-000E>..<control-001F>
+  0x007F <= code && code <= 0x009F || // Cc  [33] <control-007F>..<control-009F>
+  0x00AD === code || // Cf       SOFT HYPHEN
+  0x0600 <= code && code <= 0x0605 || // Cf   [6] ARABIC NUMBER SIGN..ARABIC NUMBER MARK ABOVE
+  0x061C === code || // Cf       ARABIC LETTER MARK
+  0x06DD === code || // Cf       ARABIC END OF AYAH
+  0x070F === code || // Cf       SYRIAC ABBREVIATION MARK
+  0x180E === code || // Cf       MONGOLIAN VOWEL SEPARATOR
+  0x200B === code || // Cf       ZERO WIDTH SPACE
+  0x200E <= code && code <= 0x200F || // Cf   [2] LEFT-TO-RIGHT MARK..RIGHT-TO-LEFT MARK
+  0x2028 === code || // Zl       LINE SEPARATOR
+  0x2029 === code || // Zp       PARAGRAPH SEPARATOR
+  0x202A <= code && code <= 0x202E || // Cf   [5] LEFT-TO-RIGHT EMBEDDING..RIGHT-TO-LEFT OVERRIDE
+  0x2060 <= code && code <= 0x2064 || // Cf   [5] WORD JOINER..INVISIBLE PLUS
+  0x2065 === code || // Cn       <reserved-2065>
+  0x2066 <= code && code <= 0x206F || // Cf  [10] LEFT-TO-RIGHT ISOLATE..NOMINAL DIGIT SHAPES
+  0xD800 <= code && code <= 0xDFFF || // Cs [2048] <surrogate-D800>..<surrogate-DFFF>
+  0xFEFF === code || // Cf       ZERO WIDTH NO-BREAK SPACE
+  0xFFF0 <= code && code <= 0xFFF8 || // Cn   [9] <reserved-FFF0>..<reserved-FFF8>
+  0xFFF9 <= code && code <= 0xFFFB || // Cf   [3] INTERLINEAR ANNOTATION ANCHOR..INTERLINEAR ANNOTATION TERMINATOR
+  0x110BD === code || // Cf       KAITHI NUMBER SIGN
+  0x1BCA0 <= code && code <= 0x1BCA3 || // Cf   [4] SHORTHAND FORMAT LETTER OVERLAP..SHORTHAND FORMAT UP STEP
+  0x1D173 <= code && code <= 0x1D17A || // Cf   [8] MUSICAL SYMBOL BEGIN BEAM..MUSICAL SYMBOL END PHRASE
+  0xE0000 === code || // Cn       <reserved-E0000>
+  0xE0001 === code || // Cf       LANGUAGE TAG
+  0xE0002 <= code && code <= 0xE001F || // Cn  [30] <reserved-E0002>..<reserved-E001F>
+  0xE0020 <= code && code <= 0xE007F || // Cf  [96] TAG SPACE..CANCEL TAG
+  0xE0080 <= code && code <= 0xE00FF || // Cn [128] <reserved-E0080>..<reserved-E00FF>
+  0xE01F0 <= code && code <= 0xE0FFF // Cn [3600] <reserved-E01F0>..<reserved-E0FFF>
+  ) {
+      return Control;
+    }
+
+  if (0x0300 <= code && code <= 0x036F || // Mn [112] COMBINING GRAVE ACCENT..COMBINING LATIN SMALL LETTER X
+  0x0483 <= code && code <= 0x0487 || // Mn   [5] COMBINING CYRILLIC TITLO..COMBINING CYRILLIC POKRYTIE
+  0x0488 <= code && code <= 0x0489 || // Me   [2] COMBINING CYRILLIC HUNDRED THOUSANDS SIGN..COMBINING CYRILLIC MILLIONS SIGN
+  0x0591 <= code && code <= 0x05BD || // Mn  [45] HEBREW ACCENT ETNAHTA..HEBREW POINT METEG
+  0x05BF === code || // Mn       HEBREW POINT RAFE
+  0x05C1 <= code && code <= 0x05C2 || // Mn   [2] HEBREW POINT SHIN DOT..HEBREW POINT SIN DOT
+  0x05C4 <= code && code <= 0x05C5 || // Mn   [2] HEBREW MARK UPPER DOT..HEBREW MARK LOWER DOT
+  0x05C7 === code || // Mn       HEBREW POINT QAMATS QATAN
+  0x0610 <= code && code <= 0x061A || // Mn  [11] ARABIC SIGN SALLALLAHOU ALAYHE WASSALLAM..ARABIC SMALL KASRA
+  0x064B <= code && code <= 0x065F || // Mn  [21] ARABIC FATHATAN..ARABIC WAVY HAMZA BELOW
+  0x0670 === code || // Mn       ARABIC LETTER SUPERSCRIPT ALEF
+  0x06D6 <= code && code <= 0x06DC || // Mn   [7] ARABIC SMALL HIGH LIGATURE SAD WITH LAM WITH ALEF MAKSURA..ARABIC SMALL HIGH SEEN
+  0x06DF <= code && code <= 0x06E4 || // Mn   [6] ARABIC SMALL HIGH ROUNDED ZERO..ARABIC SMALL HIGH MADDA
+  0x06E7 <= code && code <= 0x06E8 || // Mn   [2] ARABIC SMALL HIGH YEH..ARABIC SMALL HIGH NOON
+  0x06EA <= code && code <= 0x06ED || // Mn   [4] ARABIC EMPTY CENTRE LOW STOP..ARABIC SMALL LOW MEEM
+  0x0711 === code || // Mn       SYRIAC LETTER SUPERSCRIPT ALAPH
+  0x0730 <= code && code <= 0x074A || // Mn  [27] SYRIAC PTHAHA ABOVE..SYRIAC BARREKH
+  0x07A6 <= code && code <= 0x07B0 || // Mn  [11] THAANA ABAFILI..THAANA SUKUN
+  0x07EB <= code && code <= 0x07F3 || // Mn   [9] NKO COMBINING SHORT HIGH TONE..NKO COMBINING DOUBLE DOT ABOVE
+  0x0816 <= code && code <= 0x0819 || // Mn   [4] SAMARITAN MARK IN..SAMARITAN MARK DAGESH
+  0x081B <= code && code <= 0x0823 || // Mn   [9] SAMARITAN MARK EPENTHETIC YUT..SAMARITAN VOWEL SIGN A
+  0x0825 <= code && code <= 0x0827 || // Mn   [3] SAMARITAN VOWEL SIGN SHORT A..SAMARITAN VOWEL SIGN U
+  0x0829 <= code && code <= 0x082D || // Mn   [5] SAMARITAN VOWEL SIGN LONG I..SAMARITAN MARK NEQUDAA
+  0x0859 <= code && code <= 0x085B || // Mn   [3] MANDAIC AFFRICATION MARK..MANDAIC GEMINATION MARK
+  0x08E3 <= code && code <= 0x0902 || // Mn  [32] ARABIC TURNED DAMMA BELOW..DEVANAGARI SIGN ANUSVARA
+  0x093A === code || // Mn       DEVANAGARI VOWEL SIGN OE
+  0x093C === code || // Mn       DEVANAGARI SIGN NUKTA
+  0x0941 <= code && code <= 0x0948 || // Mn   [8] DEVANAGARI VOWEL SIGN U..DEVANAGARI VOWEL SIGN AI
+  0x094D === code || // Mn       DEVANAGARI SIGN VIRAMA
+  0x0951 <= code && code <= 0x0957 || // Mn   [7] DEVANAGARI STRESS SIGN UDATTA..DEVANAGARI VOWEL SIGN UUE
+  0x0962 <= code && code <= 0x0963 || // Mn   [2] DEVANAGARI VOWEL SIGN VOCALIC L..DEVANAGARI VOWEL SIGN VOCALIC LL
+  0x0981 === code || // Mn       BENGALI SIGN CANDRABINDU
+  0x09BC === code || // Mn       BENGALI SIGN NUKTA
+  0x09BE === code || // Mc       BENGALI VOWEL SIGN AA
+  0x09C1 <= code && code <= 0x09C4 || // Mn   [4] BENGALI VOWEL SIGN U..BENGALI VOWEL SIGN VOCALIC RR
+  0x09CD === code || // Mn       BENGALI SIGN VIRAMA
+  0x09D7 === code || // Mc       BENGALI AU LENGTH MARK
+  0x09E2 <= code && code <= 0x09E3 || // Mn   [2] BENGALI VOWEL SIGN VOCALIC L..BENGALI VOWEL SIGN VOCALIC LL
+  0x0A01 <= code && code <= 0x0A02 || // Mn   [2] GURMUKHI SIGN ADAK BINDI..GURMUKHI SIGN BINDI
+  0x0A3C === code || // Mn       GURMUKHI SIGN NUKTA
+  0x0A41 <= code && code <= 0x0A42 || // Mn   [2] GURMUKHI VOWEL SIGN U..GURMUKHI VOWEL SIGN UU
+  0x0A47 <= code && code <= 0x0A48 || // Mn   [2] GURMUKHI VOWEL SIGN EE..GURMUKHI VOWEL SIGN AI
+  0x0A4B <= code && code <= 0x0A4D || // Mn   [3] GURMUKHI VOWEL SIGN OO..GURMUKHI SIGN VIRAMA
+  0x0A51 === code || // Mn       GURMUKHI SIGN UDAAT
+  0x0A70 <= code && code <= 0x0A71 || // Mn   [2] GURMUKHI TIPPI..GURMUKHI ADDAK
+  0x0A75 === code || // Mn       GURMUKHI SIGN YAKASH
+  0x0A81 <= code && code <= 0x0A82 || // Mn   [2] GUJARATI SIGN CANDRABINDU..GUJARATI SIGN ANUSVARA
+  0x0ABC === code || // Mn       GUJARATI SIGN NUKTA
+  0x0AC1 <= code && code <= 0x0AC5 || // Mn   [5] GUJARATI VOWEL SIGN U..GUJARATI VOWEL SIGN CANDRA E
+  0x0AC7 <= code && code <= 0x0AC8 || // Mn   [2] GUJARATI VOWEL SIGN E..GUJARATI VOWEL SIGN AI
+  0x0ACD === code || // Mn       GUJARATI SIGN VIRAMA
+  0x0AE2 <= code && code <= 0x0AE3 || // Mn   [2] GUJARATI VOWEL SIGN VOCALIC L..GUJARATI VOWEL SIGN VOCALIC LL
+  0x0B01 === code || // Mn       ORIYA SIGN CANDRABINDU
+  0x0B3C === code || // Mn       ORIYA SIGN NUKTA
+  0x0B3E === code || // Mc       ORIYA VOWEL SIGN AA
+  0x0B3F === code || // Mn       ORIYA VOWEL SIGN I
+  0x0B41 <= code && code <= 0x0B44 || // Mn   [4] ORIYA VOWEL SIGN U..ORIYA VOWEL SIGN VOCALIC RR
+  0x0B4D === code || // Mn       ORIYA SIGN VIRAMA
+  0x0B56 === code || // Mn       ORIYA AI LENGTH MARK
+  0x0B57 === code || // Mc       ORIYA AU LENGTH MARK
+  0x0B62 <= code && code <= 0x0B63 || // Mn   [2] ORIYA VOWEL SIGN VOCALIC L..ORIYA VOWEL SIGN VOCALIC LL
+  0x0B82 === code || // Mn       TAMIL SIGN ANUSVARA
+  0x0BBE === code || // Mc       TAMIL VOWEL SIGN AA
+  0x0BC0 === code || // Mn       TAMIL VOWEL SIGN II
+  0x0BCD === code || // Mn       TAMIL SIGN VIRAMA
+  0x0BD7 === code || // Mc       TAMIL AU LENGTH MARK
+  0x0C00 === code || // Mn       TELUGU SIGN COMBINING CANDRABINDU ABOVE
+  0x0C3E <= code && code <= 0x0C40 || // Mn   [3] TELUGU VOWEL SIGN AA..TELUGU VOWEL SIGN II
+  0x0C46 <= code && code <= 0x0C48 || // Mn   [3] TELUGU VOWEL SIGN E..TELUGU VOWEL SIGN AI
+  0x0C4A <= code && code <= 0x0C4D || // Mn   [4] TELUGU VOWEL SIGN O..TELUGU SIGN VIRAMA
+  0x0C55 <= code && code <= 0x0C56 || // Mn   [2] TELUGU LENGTH MARK..TELUGU AI LENGTH MARK
+  0x0C62 <= code && code <= 0x0C63 || // Mn   [2] TELUGU VOWEL SIGN VOCALIC L..TELUGU VOWEL SIGN VOCALIC LL
+  0x0C81 === code || // Mn       KANNADA SIGN CANDRABINDU
+  0x0CBC === code || // Mn       KANNADA SIGN NUKTA
+  0x0CBF === code || // Mn       KANNADA VOWEL SIGN I
+  0x0CC2 === code || // Mc       KANNADA VOWEL SIGN UU
+  0x0CC6 === code || // Mn       KANNADA VOWEL SIGN E
+  0x0CCC <= code && code <= 0x0CCD || // Mn   [2] KANNADA VOWEL SIGN AU..KANNADA SIGN VIRAMA
+  0x0CD5 <= code && code <= 0x0CD6 || // Mc   [2] KANNADA LENGTH MARK..KANNADA AI LENGTH MARK
+  0x0CE2 <= code && code <= 0x0CE3 || // Mn   [2] KANNADA VOWEL SIGN VOCALIC L..KANNADA VOWEL SIGN VOCALIC LL
+  0x0D01 === code || // Mn       MALAYALAM SIGN CANDRABINDU
+  0x0D3E === code || // Mc       MALAYALAM VOWEL SIGN AA
+  0x0D41 <= code && code <= 0x0D44 || // Mn   [4] MALAYALAM VOWEL SIGN U..MALAYALAM VOWEL SIGN VOCALIC RR
+  0x0D4D === code || // Mn       MALAYALAM SIGN VIRAMA
+  0x0D57 === code || // Mc       MALAYALAM AU LENGTH MARK
+  0x0D62 <= code && code <= 0x0D63 || // Mn   [2] MALAYALAM VOWEL SIGN VOCALIC L..MALAYALAM VOWEL SIGN VOCALIC LL
+  0x0DCA === code || // Mn       SINHALA SIGN AL-LAKUNA
+  0x0DCF === code || // Mc       SINHALA VOWEL SIGN AELA-PILLA
+  0x0DD2 <= code && code <= 0x0DD4 || // Mn   [3] SINHALA VOWEL SIGN KETTI IS-PILLA..SINHALA VOWEL SIGN KETTI PAA-PILLA
+  0x0DD6 === code || // Mn       SINHALA VOWEL SIGN DIGA PAA-PILLA
+  0x0DDF === code || // Mc       SINHALA VOWEL SIGN GAYANUKITTA
+  0x0E31 === code || // Mn       THAI CHARACTER MAI HAN-AKAT
+  0x0E34 <= code && code <= 0x0E3A || // Mn   [7] THAI CHARACTER SARA I..THAI CHARACTER PHINTHU
+  0x0E47 <= code && code <= 0x0E4E || // Mn   [8] THAI CHARACTER MAITAIKHU..THAI CHARACTER YAMAKKAN
+  0x0EB1 === code || // Mn       LAO VOWEL SIGN MAI KAN
+  0x0EB4 <= code && code <= 0x0EB9 || // Mn   [6] LAO VOWEL SIGN I..LAO VOWEL SIGN UU
+  0x0EBB <= code && code <= 0x0EBC || // Mn   [2] LAO VOWEL SIGN MAI KON..LAO SEMIVOWEL SIGN LO
+  0x0EC8 <= code && code <= 0x0ECD || // Mn   [6] LAO TONE MAI EK..LAO NIGGAHITA
+  0x0F18 <= code && code <= 0x0F19 || // Mn   [2] TIBETAN ASTROLOGICAL SIGN -KHYUD PA..TIBETAN ASTROLOGICAL SIGN SDONG TSHUGS
+  0x0F35 === code || // Mn       TIBETAN MARK NGAS BZUNG NYI ZLA
+  0x0F37 === code || // Mn       TIBETAN MARK NGAS BZUNG SGOR RTAGS
+  0x0F39 === code || // Mn       TIBETAN MARK TSA -PHRU
+  0x0F71 <= code && code <= 0x0F7E || // Mn  [14] TIBETAN VOWEL SIGN AA..TIBETAN SIGN RJES SU NGA RO
+  0x0F80 <= code && code <= 0x0F84 || // Mn   [5] TIBETAN VOWEL SIGN REVERSED I..TIBETAN MARK HALANTA
+  0x0F86 <= code && code <= 0x0F87 || // Mn   [2] TIBETAN SIGN LCI RTAGS..TIBETAN SIGN YANG RTAGS
+  0x0F8D <= code && code <= 0x0F97 || // Mn  [11] TIBETAN SUBJOINED SIGN LCE TSA CAN..TIBETAN SUBJOINED LETTER JA
+  0x0F99 <= code && code <= 0x0FBC || // Mn  [36] TIBETAN SUBJOINED LETTER NYA..TIBETAN SUBJOINED LETTER FIXED-FORM RA
+  0x0FC6 === code || // Mn       TIBETAN SYMBOL PADMA GDAN
+  0x102D <= code && code <= 0x1030 || // Mn   [4] MYANMAR VOWEL SIGN I..MYANMAR VOWEL SIGN UU
+  0x1032 <= code && code <= 0x1037 || // Mn   [6] MYANMAR VOWEL SIGN AI..MYANMAR SIGN DOT BELOW
+  0x1039 <= code && code <= 0x103A || // Mn   [2] MYANMAR SIGN VIRAMA..MYANMAR SIGN ASAT
+  0x103D <= code && code <= 0x103E || // Mn   [2] MYANMAR CONSONANT SIGN MEDIAL WA..MYANMAR CONSONANT SIGN MEDIAL HA
+  0x1058 <= code && code <= 0x1059 || // Mn   [2] MYANMAR VOWEL SIGN VOCALIC L..MYANMAR VOWEL SIGN VOCALIC LL
+  0x105E <= code && code <= 0x1060 || // Mn   [3] MYANMAR CONSONANT SIGN MON MEDIAL NA..MYANMAR CONSONANT SIGN MON MEDIAL LA
+  0x1071 <= code && code <= 0x1074 || // Mn   [4] MYANMAR VOWEL SIGN GEBA KAREN I..MYANMAR VOWEL SIGN KAYAH EE
+  0x1082 === code || // Mn       MYANMAR CONSONANT SIGN SHAN MEDIAL WA
+  0x1085 <= code && code <= 0x1086 || // Mn   [2] MYANMAR VOWEL SIGN SHAN E ABOVE..MYANMAR VOWEL SIGN SHAN FINAL Y
+  0x108D === code || // Mn       MYANMAR SIGN SHAN COUNCIL EMPHATIC TONE
+  0x109D === code || // Mn       MYANMAR VOWEL SIGN AITON AI
+  0x135D <= code && code <= 0x135F || // Mn   [3] ETHIOPIC COMBINING GEMINATION AND VOWEL LENGTH MARK..ETHIOPIC COMBINING GEMINATION MARK
+  0x1712 <= code && code <= 0x1714 || // Mn   [3] TAGALOG VOWEL SIGN I..TAGALOG SIGN VIRAMA
+  0x1732 <= code && code <= 0x1734 || // Mn   [3] HANUNOO VOWEL SIGN I..HANUNOO SIGN PAMUDPOD
+  0x1752 <= code && code <= 0x1753 || // Mn   [2] BUHID VOWEL SIGN I..BUHID VOWEL SIGN U
+  0x1772 <= code && code <= 0x1773 || // Mn   [2] TAGBANWA VOWEL SIGN I..TAGBANWA VOWEL SIGN U
+  0x17B4 <= code && code <= 0x17B5 || // Mn   [2] KHMER VOWEL INHERENT AQ..KHMER VOWEL INHERENT AA
+  0x17B7 <= code && code <= 0x17BD || // Mn   [7] KHMER VOWEL SIGN I..KHMER VOWEL SIGN UA
+  0x17C6 === code || // Mn       KHMER SIGN NIKAHIT
+  0x17C9 <= code && code <= 0x17D3 || // Mn  [11] KHMER SIGN MUUSIKATOAN..KHMER SIGN BATHAMASAT
+  0x17DD === code || // Mn       KHMER SIGN ATTHACAN
+  0x180B <= code && code <= 0x180D || // Mn   [3] MONGOLIAN FREE VARIATION SELECTOR ONE..MONGOLIAN FREE VARIATION SELECTOR THREE
+  0x18A9 === code || // Mn       MONGOLIAN LETTER ALI GALI DAGALGA
+  0x1920 <= code && code <= 0x1922 || // Mn   [3] LIMBU VOWEL SIGN A..LIMBU VOWEL SIGN U
+  0x1927 <= code && code <= 0x1928 || // Mn   [2] LIMBU VOWEL SIGN E..LIMBU VOWEL SIGN O
+  0x1932 === code || // Mn       LIMBU SMALL LETTER ANUSVARA
+  0x1939 <= code && code <= 0x193B || // Mn   [3] LIMBU SIGN MUKPHRENG..LIMBU SIGN SA-I
+  0x1A17 <= code && code <= 0x1A18 || // Mn   [2] BUGINESE VOWEL SIGN I..BUGINESE VOWEL SIGN U
+  0x1A1B === code || // Mn       BUGINESE VOWEL SIGN AE
+  0x1A56 === code || // Mn       TAI THAM CONSONANT SIGN MEDIAL LA
+  0x1A58 <= code && code <= 0x1A5E || // Mn   [7] TAI THAM SIGN MAI KANG LAI..TAI THAM CONSONANT SIGN SA
+  0x1A60 === code || // Mn       TAI THAM SIGN SAKOT
+  0x1A62 === code || // Mn       TAI THAM VOWEL SIGN MAI SAT
+  0x1A65 <= code && code <= 0x1A6C || // Mn   [8] TAI THAM VOWEL SIGN I..TAI THAM VOWEL SIGN OA BELOW
+  0x1A73 <= code && code <= 0x1A7C || // Mn  [10] TAI THAM VOWEL SIGN OA ABOVE..TAI THAM SIGN KHUEN-LUE KARAN
+  0x1A7F === code || // Mn       TAI THAM COMBINING CRYPTOGRAMMIC DOT
+  0x1AB0 <= code && code <= 0x1ABD || // Mn  [14] COMBINING DOUBLED CIRCUMFLEX ACCENT..COMBINING PARENTHESES BELOW
+  0x1ABE === code || // Me       COMBINING PARENTHESES OVERLAY
+  0x1B00 <= code && code <= 0x1B03 || // Mn   [4] BALINESE SIGN ULU RICEM..BALINESE SIGN SURANG
+  0x1B34 === code || // Mn       BALINESE SIGN REREKAN
+  0x1B36 <= code && code <= 0x1B3A || // Mn   [5] BALINESE VOWEL SIGN ULU..BALINESE VOWEL SIGN RA REPA
+  0x1B3C === code || // Mn       BALINESE VOWEL SIGN LA LENGA
+  0x1B42 === code || // Mn       BALINESE VOWEL SIGN PEPET
+  0x1B6B <= code && code <= 0x1B73 || // Mn   [9] BALINESE MUSICAL SYMBOL COMBINING TEGEH..BALINESE MUSICAL SYMBOL COMBINING GONG
+  0x1B80 <= code && code <= 0x1B81 || // Mn   [2] SUNDANESE SIGN PANYECEK..SUNDANESE SIGN PANGLAYAR
+  0x1BA2 <= code && code <= 0x1BA5 || // Mn   [4] SUNDANESE CONSONANT SIGN PANYAKRA..SUNDANESE VOWEL SIGN PANYUKU
+  0x1BA8 <= code && code <= 0x1BA9 || // Mn   [2] SUNDANESE VOWEL SIGN PAMEPET..SUNDANESE VOWEL SIGN PANEULEUNG
+  0x1BAB <= code && code <= 0x1BAD || // Mn   [3] SUNDANESE SIGN VIRAMA..SUNDANESE CONSONANT SIGN PASANGAN WA
+  0x1BE6 === code || // Mn       BATAK SIGN TOMPI
+  0x1BE8 <= code && code <= 0x1BE9 || // Mn   [2] BATAK VOWEL SIGN PAKPAK E..BATAK VOWEL SIGN EE
+  0x1BED === code || // Mn       BATAK VOWEL SIGN KARO O
+  0x1BEF <= code && code <= 0x1BF1 || // Mn   [3] BATAK VOWEL SIGN U FOR SIMALUNGUN SA..BATAK CONSONANT SIGN H
+  0x1C2C <= code && code <= 0x1C33 || // Mn   [8] LEPCHA VOWEL SIGN E..LEPCHA CONSONANT SIGN T
+  0x1C36 <= code && code <= 0x1C37 || // Mn   [2] LEPCHA SIGN RAN..LEPCHA SIGN NUKTA
+  0x1CD0 <= code && code <= 0x1CD2 || // Mn   [3] VEDIC TONE KARSHANA..VEDIC TONE PRENKHA
+  0x1CD4 <= code && code <= 0x1CE0 || // Mn  [13] VEDIC SIGN YAJURVEDIC MIDLINE SVARITA..VEDIC TONE RIGVEDIC KASHMIRI INDEPENDENT SVARITA
+  0x1CE2 <= code && code <= 0x1CE8 || // Mn   [7] VEDIC SIGN VISARGA SVARITA..VEDIC SIGN VISARGA ANUDATTA WITH TAIL
+  0x1CED === code || // Mn       VEDIC SIGN TIRYAK
+  0x1CF4 === code || // Mn       VEDIC TONE CANDRA ABOVE
+  0x1CF8 <= code && code <= 0x1CF9 || // Mn   [2] VEDIC TONE RING ABOVE..VEDIC TONE DOUBLE RING ABOVE
+  0x1DC0 <= code && code <= 0x1DF5 || // Mn  [54] COMBINING DOTTED GRAVE ACCENT..COMBINING UP TACK ABOVE
+  0x1DFC <= code && code <= 0x1DFF || // Mn   [4] COMBINING DOUBLE INVERTED BREVE BELOW..COMBINING RIGHT ARROWHEAD AND DOWN ARROWHEAD BELOW
+  0x200C <= code && code <= 0x200D || // Cf   [2] ZERO WIDTH NON-JOINER..ZERO WIDTH JOINER
+  0x20D0 <= code && code <= 0x20DC || // Mn  [13] COMBINING LEFT HARPOON ABOVE..COMBINING FOUR DOTS ABOVE
+  0x20DD <= code && code <= 0x20E0 || // Me   [4] COMBINING ENCLOSING CIRCLE..COMBINING ENCLOSING CIRCLE BACKSLASH
+  0x20E1 === code || // Mn       COMBINING LEFT RIGHT ARROW ABOVE
+  0x20E2 <= code && code <= 0x20E4 || // Me   [3] COMBINING ENCLOSING SCREEN..COMBINING ENCLOSING UPWARD POINTING TRIANGLE
+  0x20E5 <= code && code <= 0x20F0 || // Mn  [12] COMBINING REVERSE SOLIDUS OVERLAY..COMBINING ASTERISK ABOVE
+  0x2CEF <= code && code <= 0x2CF1 || // Mn   [3] COPTIC COMBINING NI ABOVE..COPTIC COMBINING SPIRITUS LENIS
+  0x2D7F === code || // Mn       TIFINAGH CONSONANT JOINER
+  0x2DE0 <= code && code <= 0x2DFF || // Mn  [32] COMBINING CYRILLIC LETTER BE..COMBINING CYRILLIC LETTER IOTIFIED BIG YUS
+  0x302A <= code && code <= 0x302D || // Mn   [4] IDEOGRAPHIC LEVEL TONE MARK..IDEOGRAPHIC ENTERING TONE MARK
+  0x302E <= code && code <= 0x302F || // Mc   [2] HANGUL SINGLE DOT TONE MARK..HANGUL DOUBLE DOT TONE MARK
+  0x3099 <= code && code <= 0x309A || // Mn   [2] COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK..COMBINING KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
+  0xA66F === code || // Mn       COMBINING CYRILLIC VZMET
+  0xA670 <= code && code <= 0xA672 || // Me   [3] COMBINING CYRILLIC TEN MILLIONS SIGN..COMBINING CYRILLIC THOUSAND MILLIONS SIGN
+  0xA674 <= code && code <= 0xA67D || // Mn  [10] COMBINING CYRILLIC LETTER UKRAINIAN IE..COMBINING CYRILLIC PAYEROK
+  0xA69E <= code && code <= 0xA69F || // Mn   [2] COMBINING CYRILLIC LETTER EF..COMBINING CYRILLIC LETTER IOTIFIED E
+  0xA6F0 <= code && code <= 0xA6F1 || // Mn   [2] BAMUM COMBINING MARK KOQNDON..BAMUM COMBINING MARK TUKWENTIS
+  0xA802 === code || // Mn       SYLOTI NAGRI SIGN DVISVARA
+  0xA806 === code || // Mn       SYLOTI NAGRI SIGN HASANTA
+  0xA80B === code || // Mn       SYLOTI NAGRI SIGN ANUSVARA
+  0xA825 <= code && code <= 0xA826 || // Mn   [2] SYLOTI NAGRI VOWEL SIGN U..SYLOTI NAGRI VOWEL SIGN E
+  0xA8C4 === code || // Mn       SAURASHTRA SIGN VIRAMA
+  0xA8E0 <= code && code <= 0xA8F1 || // Mn  [18] COMBINING DEVANAGARI DIGIT ZERO..COMBINING DEVANAGARI SIGN AVAGRAHA
+  0xA926 <= code && code <= 0xA92D || // Mn   [8] KAYAH LI VOWEL UE..KAYAH LI TONE CALYA PLOPHU
+  0xA947 <= code && code <= 0xA951 || // Mn  [11] REJANG VOWEL SIGN I..REJANG CONSONANT SIGN R
+  0xA980 <= code && code <= 0xA982 || // Mn   [3] JAVANESE SIGN PANYANGGA..JAVANESE SIGN LAYAR
+  0xA9B3 === code || // Mn       JAVANESE SIGN CECAK TELU
+  0xA9B6 <= code && code <= 0xA9B9 || // Mn   [4] JAVANESE VOWEL SIGN WULU..JAVANESE VOWEL SIGN SUKU MENDUT
+  0xA9BC === code || // Mn       JAVANESE VOWEL SIGN PEPET
+  0xA9E5 === code || // Mn       MYANMAR SIGN SHAN SAW
+  0xAA29 <= code && code <= 0xAA2E || // Mn   [6] CHAM VOWEL SIGN AA..CHAM VOWEL SIGN OE
+  0xAA31 <= code && code <= 0xAA32 || // Mn   [2] CHAM VOWEL SIGN AU..CHAM VOWEL SIGN UE
+  0xAA35 <= code && code <= 0xAA36 || // Mn   [2] CHAM CONSONANT SIGN LA..CHAM CONSONANT SIGN WA
+  0xAA43 === code || // Mn       CHAM CONSONANT SIGN FINAL NG
+  0xAA4C === code || // Mn       CHAM CONSONANT SIGN FINAL M
+  0xAA7C === code || // Mn       MYANMAR SIGN TAI LAING TONE-2
+  0xAAB0 === code || // Mn       TAI VIET MAI KANG
+  0xAAB2 <= code && code <= 0xAAB4 || // Mn   [3] TAI VIET VOWEL I..TAI VIET VOWEL U
+  0xAAB7 <= code && code <= 0xAAB8 || // Mn   [2] TAI VIET MAI KHIT..TAI VIET VOWEL IA
+  0xAABE <= code && code <= 0xAABF || // Mn   [2] TAI VIET VOWEL AM..TAI VIET TONE MAI EK
+  0xAAC1 === code || // Mn       TAI VIET TONE MAI THO
+  0xAAEC <= code && code <= 0xAAED || // Mn   [2] MEETEI MAYEK VOWEL SIGN UU..MEETEI MAYEK VOWEL SIGN AAI
+  0xAAF6 === code || // Mn       MEETEI MAYEK VIRAMA
+  0xABE5 === code || // Mn       MEETEI MAYEK VOWEL SIGN ANAP
+  0xABE8 === code || // Mn       MEETEI MAYEK VOWEL SIGN UNAP
+  0xABED === code || // Mn       MEETEI MAYEK APUN IYEK
+  0xFB1E === code || // Mn       HEBREW POINT JUDEO-SPANISH VARIKA
+  0xFE00 <= code && code <= 0xFE0F || // Mn  [16] VARIATION SELECTOR-1..VARIATION SELECTOR-16
+  0xFE20 <= code && code <= 0xFE2F || // Mn  [16] COMBINING LIGATURE LEFT HALF..COMBINING CYRILLIC TITLO RIGHT HALF
+  0xFF9E <= code && code <= 0xFF9F || // Lm   [2] HALFWIDTH KATAKANA VOICED SOUND MARK..HALFWIDTH KATAKANA SEMI-VOICED SOUND MARK
+  0x101FD === code || // Mn       PHAISTOS DISC SIGN COMBINING OBLIQUE STROKE
+  0x102E0 === code || // Mn       COPTIC EPACT THOUSANDS MARK
+  0x10376 <= code && code <= 0x1037A || // Mn   [5] COMBINING OLD PERMIC LETTER AN..COMBINING OLD PERMIC LETTER SII
+  0x10A01 <= code && code <= 0x10A03 || // Mn   [3] KHAROSHTHI VOWEL SIGN I..KHAROSHTHI VOWEL SIGN VOCALIC R
+  0x10A05 <= code && code <= 0x10A06 || // Mn   [2] KHAROSHTHI VOWEL SIGN E..KHAROSHTHI VOWEL SIGN O
+  0x10A0C <= code && code <= 0x10A0F || // Mn   [4] KHAROSHTHI VOWEL LENGTH MARK..KHAROSHTHI SIGN VISARGA
+  0x10A38 <= code && code <= 0x10A3A || // Mn   [3] KHAROSHTHI SIGN BAR ABOVE..KHAROSHTHI SIGN DOT BELOW
+  0x10A3F === code || // Mn       KHAROSHTHI VIRAMA
+  0x10AE5 <= code && code <= 0x10AE6 || // Mn   [2] MANICHAEAN ABBREVIATION MARK ABOVE..MANICHAEAN ABBREVIATION MARK BELOW
+  0x11001 === code || // Mn       BRAHMI SIGN ANUSVARA
+  0x11038 <= code && code <= 0x11046 || // Mn  [15] BRAHMI VOWEL SIGN AA..BRAHMI VIRAMA
+  0x1107F <= code && code <= 0x11081 || // Mn   [3] BRAHMI NUMBER JOINER..KAITHI SIGN ANUSVARA
+  0x110B3 <= code && code <= 0x110B6 || // Mn   [4] KAITHI VOWEL SIGN U..KAITHI VOWEL SIGN AI
+  0x110B9 <= code && code <= 0x110BA || // Mn   [2] KAITHI SIGN VIRAMA..KAITHI SIGN NUKTA
+  0x11100 <= code && code <= 0x11102 || // Mn   [3] CHAKMA SIGN CANDRABINDU..CHAKMA SIGN VISARGA
+  0x11127 <= code && code <= 0x1112B || // Mn   [5] CHAKMA VOWEL SIGN A..CHAKMA VOWEL SIGN UU
+  0x1112D <= code && code <= 0x11134 || // Mn   [8] CHAKMA VOWEL SIGN AI..CHAKMA MAAYYAA
+  0x11173 === code || // Mn       MAHAJANI SIGN NUKTA
+  0x11180 <= code && code <= 0x11181 || // Mn   [2] SHARADA SIGN CANDRABINDU..SHARADA SIGN ANUSVARA
+  0x111B6 <= code && code <= 0x111BE || // Mn   [9] SHARADA VOWEL SIGN U..SHARADA VOWEL SIGN O
+  0x111CA <= code && code <= 0x111CC || // Mn   [3] SHARADA SIGN NUKTA..SHARADA EXTRA SHORT VOWEL MARK
+  0x1122F <= code && code <= 0x11231 || // Mn   [3] KHOJKI VOWEL SIGN U..KHOJKI VOWEL SIGN AI
+  0x11234 === code || // Mn       KHOJKI SIGN ANUSVARA
+  0x11236 <= code && code <= 0x11237 || // Mn   [2] KHOJKI SIGN NUKTA..KHOJKI SIGN SHADDA
+  0x112DF === code || // Mn       KHUDAWADI SIGN ANUSVARA
+  0x112E3 <= code && code <= 0x112EA || // Mn   [8] KHUDAWADI VOWEL SIGN U..KHUDAWADI SIGN VIRAMA
+  0x11300 <= code && code <= 0x11301 || // Mn   [2] GRANTHA SIGN COMBINING ANUSVARA ABOVE..GRANTHA SIGN CANDRABINDU
+  0x1133C === code || // Mn       GRANTHA SIGN NUKTA
+  0x1133E === code || // Mc       GRANTHA VOWEL SIGN AA
+  0x11340 === code || // Mn       GRANTHA VOWEL SIGN II
+  0x11357 === code || // Mc       GRANTHA AU LENGTH MARK
+  0x11366 <= code && code <= 0x1136C || // Mn   [7] COMBINING GRANTHA DIGIT ZERO..COMBINING GRANTHA DIGIT SIX
+  0x11370 <= code && code <= 0x11374 || // Mn   [5] COMBINING GRANTHA LETTER A..COMBINING GRANTHA LETTER PA
+  0x114B0 === code || // Mc       TIRHUTA VOWEL SIGN AA
+  0x114B3 <= code && code <= 0x114B8 || // Mn   [6] TIRHUTA VOWEL SIGN U..TIRHUTA VOWEL SIGN VOCALIC LL
+  0x114BA === code || // Mn       TIRHUTA VOWEL SIGN SHORT E
+  0x114BD === code || // Mc       TIRHUTA VOWEL SIGN SHORT O
+  0x114BF <= code && code <= 0x114C0 || // Mn   [2] TIRHUTA SIGN CANDRABINDU..TIRHUTA SIGN ANUSVARA
+  0x114C2 <= code && code <= 0x114C3 || // Mn   [2] TIRHUTA SIGN VIRAMA..TIRHUTA SIGN NUKTA
+  0x115AF === code || // Mc       SIDDHAM VOWEL SIGN AA
+  0x115B2 <= code && code <= 0x115B5 || // Mn   [4] SIDDHAM VOWEL SIGN U..SIDDHAM VOWEL SIGN VOCALIC RR
+  0x115BC <= code && code <= 0x115BD || // Mn   [2] SIDDHAM SIGN CANDRABINDU..SIDDHAM SIGN ANUSVARA
+  0x115BF <= code && code <= 0x115C0 || // Mn   [2] SIDDHAM SIGN VIRAMA..SIDDHAM SIGN NUKTA
+  0x115DC <= code && code <= 0x115DD || // Mn   [2] SIDDHAM VOWEL SIGN ALTERNATE U..SIDDHAM VOWEL SIGN ALTERNATE UU
+  0x11633 <= code && code <= 0x1163A || // Mn   [8] MODI VOWEL SIGN U..MODI VOWEL SIGN AI
+  0x1163D === code || // Mn       MODI SIGN ANUSVARA
+  0x1163F <= code && code <= 0x11640 || // Mn   [2] MODI SIGN VIRAMA..MODI SIGN ARDHACANDRA
+  0x116AB === code || // Mn       TAKRI SIGN ANUSVARA
+  0x116AD === code || // Mn       TAKRI VOWEL SIGN AA
+  0x116B0 <= code && code <= 0x116B5 || // Mn   [6] TAKRI VOWEL SIGN U..TAKRI VOWEL SIGN AU
+  0x116B7 === code || // Mn       TAKRI SIGN NUKTA
+  0x1171D <= code && code <= 0x1171F || // Mn   [3] AHOM CONSONANT SIGN MEDIAL LA..AHOM CONSONANT SIGN MEDIAL LIGATING RA
+  0x11722 <= code && code <= 0x11725 || // Mn   [4] AHOM VOWEL SIGN I..AHOM VOWEL SIGN UU
+  0x11727 <= code && code <= 0x1172B || // Mn   [5] AHOM VOWEL SIGN AW..AHOM SIGN KILLER
+  0x16AF0 <= code && code <= 0x16AF4 || // Mn   [5] BASSA VAH COMBINING HIGH TONE..BASSA VAH COMBINING HIGH-LOW TONE
+  0x16B30 <= code && code <= 0x16B36 || // Mn   [7] PAHAWH HMONG MARK CIM TUB..PAHAWH HMONG MARK CIM TAUM
+  0x16F8F <= code && code <= 0x16F92 || // Mn   [4] MIAO TONE RIGHT..MIAO TONE BELOW
+  0x1BC9D <= code && code <= 0x1BC9E || // Mn   [2] DUPLOYAN THICK LETTER SELECTOR..DUPLOYAN DOUBLE MARK
+  0x1D165 === code || // Mc       MUSICAL SYMBOL COMBINING STEM
+  0x1D167 <= code && code <= 0x1D169 || // Mn   [3] MUSICAL SYMBOL COMBINING TREMOLO-1..MUSICAL SYMBOL COMBINING TREMOLO-3
+  0x1D16E <= code && code <= 0x1D172 || // Mc   [5] MUSICAL SYMBOL COMBINING FLAG-1..MUSICAL SYMBOL COMBINING FLAG-5
+  0x1D17B <= code && code <= 0x1D182 || // Mn   [8] MUSICAL SYMBOL COMBINING ACCENT..MUSICAL SYMBOL COMBINING LOURE
+  0x1D185 <= code && code <= 0x1D18B || // Mn   [7] MUSICAL SYMBOL COMBINING DOIT..MUSICAL SYMBOL COMBINING TRIPLE TONGUE
+  0x1D1AA <= code && code <= 0x1D1AD || // Mn   [4] MUSICAL SYMBOL COMBINING DOWN BOW..MUSICAL SYMBOL COMBINING SNAP PIZZICATO
+  0x1D242 <= code && code <= 0x1D244 || // Mn   [3] COMBINING GREEK MUSICAL TRISEME..COMBINING GREEK MUSICAL PENTASEME
+  0x1DA00 <= code && code <= 0x1DA36 || // Mn  [55] SIGNWRITING HEAD RIM..SIGNWRITING AIR SUCKING IN
+  0x1DA3B <= code && code <= 0x1DA6C || // Mn  [50] SIGNWRITING MOUTH CLOSED NEUTRAL..SIGNWRITING EXCITEMENT
+  0x1DA75 === code || // Mn       SIGNWRITING UPPER BODY TILTING FROM HIP JOINTS
+  0x1DA84 === code || // Mn       SIGNWRITING LOCATION HEAD NECK
+  0x1DA9B <= code && code <= 0x1DA9F || // Mn   [5] SIGNWRITING FILL MODIFIER-2..SIGNWRITING FILL MODIFIER-6
+  0x1DAA1 <= code && code <= 0x1DAAF || // Mn  [15] SIGNWRITING ROTATION MODIFIER-2..SIGNWRITING ROTATION MODIFIER-16
+  0x1E8D0 <= code && code <= 0x1E8D6 || // Mn   [7] MENDE KIKAKUI COMBINING NUMBER TEENS..MENDE KIKAKUI COMBINING NUMBER MILLIONS
+  0xE0100 <= code && code <= 0xE01EF // Mn [240] VARIATION SELECTOR-17..VARIATION SELECTOR-256
+  ) {
+      return Extend;
+    }
+
+  if (0x1F1E6 <= code && code <= 0x1F1FF) // So  [26] REGIONAL INDICATOR SYMBOL LETTER A..REGIONAL INDICATOR SYMBOL LETTER Z
+    {
+      return Regional_Indicator;
+    }
+
+  if (0x1F3FB <= code && code <= 0x1F3FF) //EMOJI MODIFIER FITZPATRICK
+    {
+      return Skin_Tone;
+    }
+
+  if (0x0903 === code || // Mc       DEVANAGARI SIGN VISARGA
+  0x093B === code || // Mc       DEVANAGARI VOWEL SIGN OOE
+  0x093E <= code && code <= 0x0940 || // Mc   [3] DEVANAGARI VOWEL SIGN AA..DEVANAGARI VOWEL SIGN II
+  0x0949 <= code && code <= 0x094C || // Mc   [4] DEVANAGARI VOWEL SIGN CANDRA O..DEVANAGARI VOWEL SIGN AU
+  0x094E <= code && code <= 0x094F || // Mc   [2] DEVANAGARI VOWEL SIGN PRISHTHAMATRA E..DEVANAGARI VOWEL SIGN AW
+  0x0982 <= code && code <= 0x0983 || // Mc   [2] BENGALI SIGN ANUSVARA..BENGALI SIGN VISARGA
+  0x09BF <= code && code <= 0x09C0 || // Mc   [2] BENGALI VOWEL SIGN I..BENGALI VOWEL SIGN II
+  0x09C7 <= code && code <= 0x09C8 || // Mc   [2] BENGALI VOWEL SIGN E..BENGALI VOWEL SIGN AI
+  0x09CB <= code && code <= 0x09CC || // Mc   [2] BENGALI VOWEL SIGN O..BENGALI VOWEL SIGN AU
+  0x0A03 === code || // Mc       GURMUKHI SIGN VISARGA
+  0x0A3E <= code && code <= 0x0A40 || // Mc   [3] GURMUKHI VOWEL SIGN AA..GURMUKHI VOWEL SIGN II
+  0x0A83 === code || // Mc       GUJARATI SIGN VISARGA
+  0x0ABE <= code && code <= 0x0AC0 || // Mc   [3] GUJARATI VOWEL SIGN AA..GUJARATI VOWEL SIGN II
+  0x0AC9 === code || // Mc       GUJARATI VOWEL SIGN CANDRA O
+  0x0ACB <= code && code <= 0x0ACC || // Mc   [2] GUJARATI VOWEL SIGN O..GUJARATI VOWEL SIGN AU
+  0x0B02 <= code && code <= 0x0B03 || // Mc   [2] ORIYA SIGN ANUSVARA..ORIYA SIGN VISARGA
+  0x0B40 === code || // Mc       ORIYA VOWEL SIGN II
+  0x0B47 <= code && code <= 0x0B48 || // Mc   [2] ORIYA VOWEL SIGN E..ORIYA VOWEL SIGN AI
+  0x0B4B <= code && code <= 0x0B4C || // Mc   [2] ORIYA VOWEL SIGN O..ORIYA VOWEL SIGN AU
+  0x0BBF === code || // Mc       TAMIL VOWEL SIGN I
+  0x0BC1 <= code && code <= 0x0BC2 || // Mc   [2] TAMIL VOWEL SIGN U..TAMIL VOWEL SIGN UU
+  0x0BC6 <= code && code <= 0x0BC8 || // Mc   [3] TAMIL VOWEL SIGN E..TAMIL VOWEL SIGN AI
+  0x0BCA <= code && code <= 0x0BCC || // Mc   [3] TAMIL VOWEL SIGN O..TAMIL VOWEL SIGN AU
+  0x0C01 <= code && code <= 0x0C03 || // Mc   [3] TELUGU SIGN CANDRABINDU..TELUGU SIGN VISARGA
+  0x0C41 <= code && code <= 0x0C44 || // Mc   [4] TELUGU VOWEL SIGN U..TELUGU VOWEL SIGN VOCALIC RR
+  0x0C82 <= code && code <= 0x0C83 || // Mc   [2] KANNADA SIGN ANUSVARA..KANNADA SIGN VISARGA
+  0x0CBE === code || // Mc       KANNADA VOWEL SIGN AA
+  0x0CC0 <= code && code <= 0x0CC1 || // Mc   [2] KANNADA VOWEL SIGN II..KANNADA VOWEL SIGN U
+  0x0CC3 <= code && code <= 0x0CC4 || // Mc   [2] KANNADA VOWEL SIGN VOCALIC R..KANNADA VOWEL SIGN VOCALIC RR
+  0x0CC7 <= code && code <= 0x0CC8 || // Mc   [2] KANNADA VOWEL SIGN EE..KANNADA VOWEL SIGN AI
+  0x0CCA <= code && code <= 0x0CCB || // Mc   [2] KANNADA VOWEL SIGN O..KANNADA VOWEL SIGN OO
+  0x0D02 <= code && code <= 0x0D03 || // Mc   [2] MALAYALAM SIGN ANUSVARA..MALAYALAM SIGN VISARGA
+  0x0D3F <= code && code <= 0x0D40 || // Mc   [2] MALAYALAM VOWEL SIGN I..MALAYALAM VOWEL SIGN II
+  0x0D46 <= code && code <= 0x0D48 || // Mc   [3] MALAYALAM VOWEL SIGN E..MALAYALAM VOWEL SIGN AI
+  0x0D4A <= code && code <= 0x0D4C || // Mc   [3] MALAYALAM VOWEL SIGN O..MALAYALAM VOWEL SIGN AU
+  0x0D82 <= code && code <= 0x0D83 || // Mc   [2] SINHALA SIGN ANUSVARAYA..SINHALA SIGN VISARGAYA
+  0x0DD0 <= code && code <= 0x0DD1 || // Mc   [2] SINHALA VOWEL SIGN KETTI AEDA-PILLA..SINHALA VOWEL SIGN DIGA AEDA-PILLA
+  0x0DD8 <= code && code <= 0x0DDE || // Mc   [7] SINHALA VOWEL SIGN GAETTA-PILLA..SINHALA VOWEL SIGN KOMBUVA HAA GAYANUKITTA
+  0x0DF2 <= code && code <= 0x0DF3 || // Mc   [2] SINHALA VOWEL SIGN DIGA GAETTA-PILLA..SINHALA VOWEL SIGN DIGA GAYANUKITTA
+  0x0E33 === code || // Lo       THAI CHARACTER SARA AM
+  0x0EB3 === code || // Lo       LAO VOWEL SIGN AM
+  0x0F3E <= code && code <= 0x0F3F || // Mc   [2] TIBETAN SIGN YAR TSHES..TIBETAN SIGN MAR TSHES
+  0x0F7F === code || // Mc       TIBETAN SIGN RNAM BCAD
+  0x1031 === code || // Mc       MYANMAR VOWEL SIGN E
+  0x103B <= code && code <= 0x103C || // Mc   [2] MYANMAR CONSONANT SIGN MEDIAL YA..MYANMAR CONSONANT SIGN MEDIAL RA
+  0x1056 <= code && code <= 0x1057 || // Mc   [2] MYANMAR VOWEL SIGN VOCALIC R..MYANMAR VOWEL SIGN VOCALIC RR
+  0x1084 === code || // Mc       MYANMAR VOWEL SIGN SHAN E
+  0x17B6 === code || // Mc       KHMER VOWEL SIGN AA
+  0x17BE <= code && code <= 0x17C5 || // Mc   [8] KHMER VOWEL SIGN OE..KHMER VOWEL SIGN AU
+  0x17C7 <= code && code <= 0x17C8 || // Mc   [2] KHMER SIGN REAHMUK..KHMER SIGN YUUKALEAPINTU
+  0x1923 <= code && code <= 0x1926 || // Mc   [4] LIMBU VOWEL SIGN EE..LIMBU VOWEL SIGN AU
+  0x1929 <= code && code <= 0x192B || // Mc   [3] LIMBU SUBJOINED LETTER YA..LIMBU SUBJOINED LETTER WA
+  0x1930 <= code && code <= 0x1931 || // Mc   [2] LIMBU SMALL LETTER KA..LIMBU SMALL LETTER NGA
+  0x1933 <= code && code <= 0x1938 || // Mc   [6] LIMBU SMALL LETTER TA..LIMBU SMALL LETTER LA
+  0x1A19 <= code && code <= 0x1A1A || // Mc   [2] BUGINESE VOWEL SIGN E..BUGINESE VOWEL SIGN O
+  0x1A55 === code || // Mc       TAI THAM CONSONANT SIGN MEDIAL RA
+  0x1A57 === code || // Mc       TAI THAM CONSONANT SIGN LA TANG LAI
+  0x1A6D <= code && code <= 0x1A72 || // Mc   [6] TAI THAM VOWEL SIGN OY..TAI THAM VOWEL SIGN THAM AI
+  0x1B04 === code || // Mc       BALINESE SIGN BISAH
+  0x1B35 === code || // Mc       BALINESE VOWEL SIGN TEDUNG
+  0x1B3B === code || // Mc       BALINESE VOWEL SIGN RA REPA TEDUNG
+  0x1B3D <= code && code <= 0x1B41 || // Mc   [5] BALINESE VOWEL SIGN LA LENGA TEDUNG..BALINESE VOWEL SIGN TALING REPA TEDUNG
+  0x1B43 <= code && code <= 0x1B44 || // Mc   [2] BALINESE VOWEL SIGN PEPET TEDUNG..BALINESE ADEG ADEG
+  0x1B82 === code || // Mc       SUNDANESE SIGN PANGWISAD
+  0x1BA1 === code || // Mc       SUNDANESE CONSONANT SIGN PAMINGKAL
+  0x1BA6 <= code && code <= 0x1BA7 || // Mc   [2] SUNDANESE VOWEL SIGN PANAELAENG..SUNDANESE VOWEL SIGN PANOLONG
+  0x1BAA === code || // Mc       SUNDANESE SIGN PAMAAEH
+  0x1BE7 === code || // Mc       BATAK VOWEL SIGN E
+  0x1BEA <= code && code <= 0x1BEC || // Mc   [3] BATAK VOWEL SIGN I..BATAK VOWEL SIGN O
+  0x1BEE === code || // Mc       BATAK VOWEL SIGN U
+  0x1BF2 <= code && code <= 0x1BF3 || // Mc   [2] BATAK PANGOLAT..BATAK PANONGONAN
+  0x1C24 <= code && code <= 0x1C2B || // Mc   [8] LEPCHA SUBJOINED LETTER YA..LEPCHA VOWEL SIGN UU
+  0x1C34 <= code && code <= 0x1C35 || // Mc   [2] LEPCHA CONSONANT SIGN NYIN-DO..LEPCHA CONSONANT SIGN KANG
+  0x1CE1 === code || // Mc       VEDIC TONE ATHARVAVEDIC INDEPENDENT SVARITA
+  0x1CF2 <= code && code <= 0x1CF3 || // Mc   [2] VEDIC SIGN ARDHAVISARGA..VEDIC SIGN ROTATED ARDHAVISARGA
+  0xA823 <= code && code <= 0xA824 || // Mc   [2] SYLOTI NAGRI VOWEL SIGN A..SYLOTI NAGRI VOWEL SIGN I
+  0xA827 === code || // Mc       SYLOTI NAGRI VOWEL SIGN OO
+  0xA880 <= code && code <= 0xA881 || // Mc   [2] SAURASHTRA SIGN ANUSVARA..SAURASHTRA SIGN VISARGA
+  0xA8B4 <= code && code <= 0xA8C3 || // Mc  [16] SAURASHTRA CONSONANT SIGN HAARU..SAURASHTRA VOWEL SIGN AU
+  0xA952 <= code && code <= 0xA953 || // Mc   [2] REJANG CONSONANT SIGN H..REJANG VIRAMA
+  0xA983 === code || // Mc       JAVANESE SIGN WIGNYAN
+  0xA9B4 <= code && code <= 0xA9B5 || // Mc   [2] JAVANESE VOWEL SIGN TARUNG..JAVANESE VOWEL SIGN TOLONG
+  0xA9BA <= code && code <= 0xA9BB || // Mc   [2] JAVANESE VOWEL SIGN TALING..JAVANESE VOWEL SIGN DIRGA MURE
+  0xA9BD <= code && code <= 0xA9C0 || // Mc   [4] JAVANESE CONSONANT SIGN KERET..JAVANESE PANGKON
+  0xAA2F <= code && code <= 0xAA30 || // Mc   [2] CHAM VOWEL SIGN O..CHAM VOWEL SIGN AI
+  0xAA33 <= code && code <= 0xAA34 || // Mc   [2] CHAM CONSONANT SIGN YA..CHAM CONSONANT SIGN RA
+  0xAA4D === code || // Mc       CHAM CONSONANT SIGN FINAL H
+  0xAAEB === code || // Mc       MEETEI MAYEK VOWEL SIGN II
+  0xAAEE <= code && code <= 0xAAEF || // Mc   [2] MEETEI MAYEK VOWEL SIGN AU..MEETEI MAYEK VOWEL SIGN AAU
+  0xAAF5 === code || // Mc       MEETEI MAYEK VOWEL SIGN VISARGA
+  0xABE3 <= code && code <= 0xABE4 || // Mc   [2] MEETEI MAYEK VOWEL SIGN ONAP..MEETEI MAYEK VOWEL SIGN INAP
+  0xABE6 <= code && code <= 0xABE7 || // Mc   [2] MEETEI MAYEK VOWEL SIGN YENAP..MEETEI MAYEK VOWEL SIGN SOUNAP
+  0xABE9 <= code && code <= 0xABEA || // Mc   [2] MEETEI MAYEK VOWEL SIGN CHEINAP..MEETEI MAYEK VOWEL SIGN NUNG
+  0xABEC === code || // Mc       MEETEI MAYEK LUM IYEK
+  0x11000 === code || // Mc       BRAHMI SIGN CANDRABINDU
+  0x11002 === code || // Mc       BRAHMI SIGN VISARGA
+  0x11082 === code || // Mc       KAITHI SIGN VISARGA
+  0x110B0 <= code && code <= 0x110B2 || // Mc   [3] KAITHI VOWEL SIGN AA..KAITHI VOWEL SIGN II
+  0x110B7 <= code && code <= 0x110B8 || // Mc   [2] KAITHI VOWEL SIGN O..KAITHI VOWEL SIGN AU
+  0x1112C === code || // Mc       CHAKMA VOWEL SIGN E
+  0x11182 === code || // Mc       SHARADA SIGN VISARGA
+  0x111B3 <= code && code <= 0x111B5 || // Mc   [3] SHARADA VOWEL SIGN AA..SHARADA VOWEL SIGN II
+  0x111BF <= code && code <= 0x111C0 || // Mc   [2] SHARADA VOWEL SIGN AU..SHARADA SIGN VIRAMA
+  0x1122C <= code && code <= 0x1122E || // Mc   [3] KHOJKI VOWEL SIGN AA..KHOJKI VOWEL SIGN II
+  0x11232 <= code && code <= 0x11233 || // Mc   [2] KHOJKI VOWEL SIGN O..KHOJKI VOWEL SIGN AU
+  0x11235 === code || // Mc       KHOJKI SIGN VIRAMA
+  0x112E0 <= code && code <= 0x112E2 || // Mc   [3] KHUDAWADI VOWEL SIGN AA..KHUDAWADI VOWEL SIGN II
+  0x11302 <= code && code <= 0x11303 || // Mc   [2] GRANTHA SIGN ANUSVARA..GRANTHA SIGN VISARGA
+  0x1133F === code || // Mc       GRANTHA VOWEL SIGN I
+  0x11341 <= code && code <= 0x11344 || // Mc   [4] GRANTHA VOWEL SIGN U..GRANTHA VOWEL SIGN VOCALIC RR
+  0x11347 <= code && code <= 0x11348 || // Mc   [2] GRANTHA VOWEL SIGN EE..GRANTHA VOWEL SIGN AI
+  0x1134B <= code && code <= 0x1134D || // Mc   [3] GRANTHA VOWEL SIGN OO..GRANTHA SIGN VIRAMA
+  0x11362 <= code && code <= 0x11363 || // Mc   [2] GRANTHA VOWEL SIGN VOCALIC L..GRANTHA VOWEL SIGN VOCALIC LL
+  0x114B1 <= code && code <= 0x114B2 || // Mc   [2] TIRHUTA VOWEL SIGN I..TIRHUTA VOWEL SIGN II
+  0x114B9 === code || // Mc       TIRHUTA VOWEL SIGN E
+  0x114BB <= code && code <= 0x114BC || // Mc   [2] TIRHUTA VOWEL SIGN AI..TIRHUTA VOWEL SIGN O
+  0x114BE === code || // Mc       TIRHUTA VOWEL SIGN AU
+  0x114C1 === code || // Mc       TIRHUTA SIGN VISARGA
+  0x115B0 <= code && code <= 0x115B1 || // Mc   [2] SIDDHAM VOWEL SIGN I..SIDDHAM VOWEL SIGN II
+  0x115B8 <= code && code <= 0x115BB || // Mc   [4] SIDDHAM VOWEL SIGN E..SIDDHAM VOWEL SIGN AU
+  0x115BE === code || // Mc       SIDDHAM SIGN VISARGA
+  0x11630 <= code && code <= 0x11632 || // Mc   [3] MODI VOWEL SIGN AA..MODI VOWEL SIGN II
+  0x1163B <= code && code <= 0x1163C || // Mc   [2] MODI VOWEL SIGN O..MODI VOWEL SIGN AU
+  0x1163E === code || // Mc       MODI SIGN VISARGA
+  0x116AC === code || // Mc       TAKRI SIGN VISARGA
+  0x116AE <= code && code <= 0x116AF || // Mc   [2] TAKRI VOWEL SIGN I..TAKRI VOWEL SIGN II
+  0x116B6 === code || // Mc       TAKRI SIGN VIRAMA
+  0x11720 <= code && code <= 0x11721 || // Mc   [2] AHOM VOWEL SIGN A..AHOM VOWEL SIGN AA
+  0x11726 === code || // Mc       AHOM VOWEL SIGN E
+  0x16F51 <= code && code <= 0x16F7E || // Mc  [46] MIAO SIGN ASPIRATION..MIAO VOWEL SIGN NG
+  0x1D166 === code || // Mc       MUSICAL SYMBOL COMBINING SPRECHGESANG STEM
+  0x1D16D === code // Mc       MUSICAL SYMBOL COMBINING AUGMENTATION DOT
+  ) {
+      return SpacingMark;
+    }
+
+  if (0x1100 <= code && code <= 0x115F || // Lo  [96] HANGUL CHOSEONG KIYEOK..HANGUL CHOSEONG FILLER
+  0xA960 <= code && code <= 0xA97C // Lo  [29] HANGUL CHOSEONG TIKEUT-MIEUM..HANGUL CHOSEONG SSANGYEORINHIEUH
+  ) {
+      return L;
+    }
+
+  if (0x1160 <= code && code <= 0x11A7 || // Lo  [72] HANGUL JUNGSEONG FILLER..HANGUL JUNGSEONG O-YAE
+  0xD7B0 <= code && code <= 0xD7C6 // Lo  [23] HANGUL JUNGSEONG O-YEO..HANGUL JUNGSEONG ARAEA-E
+  ) {
+      return V;
+    }
+
+  if (0x11A8 <= code && code <= 0x11FF || // Lo  [88] HANGUL JONGSEONG KIYEOK..HANGUL JONGSEONG SSANGNIEUN
+  0xD7CB <= code && code <= 0xD7FB // Lo  [49] HANGUL JONGSEONG NIEUN-RIEUL..HANGUL JONGSEONG PHIEUPH-THIEUTH
+  ) {
+      return T;
+    }
+
+  if (0xAC00 === code || // Lo       HANGUL SYLLABLE GA
+  0xAC1C === code || // Lo       HANGUL SYLLABLE GAE
+  0xAC38 === code || // Lo       HANGUL SYLLABLE GYA
+  0xAC54 === code || // Lo       HANGUL SYLLABLE GYAE
+  0xAC70 === code || // Lo       HANGUL SYLLABLE GEO
+  0xAC8C === code || // Lo       HANGUL SYLLABLE GE
+  0xACA8 === code || // Lo       HANGUL SYLLABLE GYEO
+  0xACC4 === code || // Lo       HANGUL SYLLABLE GYE
+  0xACE0 === code || // Lo       HANGUL SYLLABLE GO
+  0xACFC === code || // Lo       HANGUL SYLLABLE GWA
+  0xAD18 === code || // Lo       HANGUL SYLLABLE GWAE
+  0xAD34 === code || // Lo       HANGUL SYLLABLE GOE
+  0xAD50 === code || // Lo       HANGUL SYLLABLE GYO
+  0xAD6C === code || // Lo       HANGUL SYLLABLE GU
+  0xAD88 === code || // Lo       HANGUL SYLLABLE GWEO
+  0xADA4 === code || // Lo       HANGUL SYLLABLE GWE
+  0xADC0 === code || // Lo       HANGUL SYLLABLE GWI
+  0xADDC === code || // Lo       HANGUL SYLLABLE GYU
+  0xADF8 === code || // Lo       HANGUL SYLLABLE GEU
+  0xAE14 === code || // Lo       HANGUL SYLLABLE GYI
+  0xAE30 === code || // Lo       HANGUL SYLLABLE GI
+  0xAE4C === code || // Lo       HANGUL SYLLABLE GGA
+  0xAE68 === code || // Lo       HANGUL SYLLABLE GGAE
+  0xAE84 === code || // Lo       HANGUL SYLLABLE GGYA
+  0xAEA0 === code || // Lo       HANGUL SYLLABLE GGYAE
+  0xAEBC === code || // Lo       HANGUL SYLLABLE GGEO
+  0xAED8 === code || // Lo       HANGUL SYLLABLE GGE
+  0xAEF4 === code || // Lo       HANGUL SYLLABLE GGYEO
+  0xAF10 === code || // Lo       HANGUL SYLLABLE GGYE
+  0xAF2C === code || // Lo       HANGUL SYLLABLE GGO
+  0xAF48 === code || // Lo       HANGUL SYLLABLE GGWA
+  0xAF64 === code || // Lo       HANGUL SYLLABLE GGWAE
+  0xAF80 === code || // Lo       HANGUL SYLLABLE GGOE
+  0xAF9C === code || // Lo       HANGUL SYLLABLE GGYO
+  0xAFB8 === code || // Lo       HANGUL SYLLABLE GGU
+  0xAFD4 === code || // Lo       HANGUL SYLLABLE GGWEO
+  0xAFF0 === code || // Lo       HANGUL SYLLABLE GGWE
+  0xB00C === code || // Lo       HANGUL SYLLABLE GGWI
+  0xB028 === code || // Lo       HANGUL SYLLABLE GGYU
+  0xB044 === code || // Lo       HANGUL SYLLABLE GGEU
+  0xB060 === code || // Lo       HANGUL SYLLABLE GGYI
+  0xB07C === code || // Lo       HANGUL SYLLABLE GGI
+  0xB098 === code || // Lo       HANGUL SYLLABLE NA
+  0xB0B4 === code || // Lo       HANGUL SYLLABLE NAE
+  0xB0D0 === code || // Lo       HANGUL SYLLABLE NYA
+  0xB0EC === code || // Lo       HANGUL SYLLABLE NYAE
+  0xB108 === code || // Lo       HANGUL SYLLABLE NEO
+  0xB124 === code || // Lo       HANGUL SYLLABLE NE
+  0xB140 === code || // Lo       HANGUL SYLLABLE NYEO
+  0xB15C === code || // Lo       HANGUL SYLLABLE NYE
+  0xB178 === code || // Lo       HANGUL SYLLABLE NO
+  0xB194 === code || // Lo       HANGUL SYLLABLE NWA
+  0xB1B0 === code || // Lo       HANGUL SYLLABLE NWAE
+  0xB1CC === code || // Lo       HANGUL SYLLABLE NOE
+  0xB1E8 === code || // Lo       HANGUL SYLLABLE NYO
+  0xB204 === code || // Lo       HANGUL SYLLABLE NU
+  0xB220 === code || // Lo       HANGUL SYLLABLE NWEO
+  0xB23C === code || // Lo       HANGUL SYLLABLE NWE
+  0xB258 === code || // Lo       HANGUL SYLLABLE NWI
+  0xB274 === code || // Lo       HANGUL SYLLABLE NYU
+  0xB290 === code || // Lo       HANGUL SYLLABLE NEU
+  0xB2AC === code || // Lo       HANGUL SYLLABLE NYI
+  0xB2C8 === code || // Lo       HANGUL SYLLABLE NI
+  0xB2E4 === code || // Lo       HANGUL SYLLABLE DA
+  0xB300 === code || // Lo       HANGUL SYLLABLE DAE
+  0xB31C === code || // Lo       HANGUL SYLLABLE DYA
+  0xB338 === code || // Lo       HANGUL SYLLABLE DYAE
+  0xB354 === code || // Lo       HANGUL SYLLABLE DEO
+  0xB370 === code || // Lo       HANGUL SYLLABLE DE
+  0xB38C === code || // Lo       HANGUL SYLLABLE DYEO
+  0xB3A8 === code || // Lo       HANGUL SYLLABLE DYE
+  0xB3C4 === code || // Lo       HANGUL SYLLABLE DO
+  0xB3E0 === code || // Lo       HANGUL SYLLABLE DWA
+  0xB3FC === code || // Lo       HANGUL SYLLABLE DWAE
+  0xB418 === code || // Lo       HANGUL SYLLABLE DOE
+  0xB434 === code || // Lo       HANGUL SYLLABLE DYO
+  0xB450 === code || // Lo       HANGUL SYLLABLE DU
+  0xB46C === code || // Lo       HANGUL SYLLABLE DWEO
+  0xB488 === code || // Lo       HANGUL SYLLABLE DWE
+  0xB4A4 === code || // Lo       HANGUL SYLLABLE DWI
+  0xB4C0 === code || // Lo       HANGUL SYLLABLE DYU
+  0xB4DC === code || // Lo       HANGUL SYLLABLE DEU
+  0xB4F8 === code || // Lo       HANGUL SYLLABLE DYI
+  0xB514 === code || // Lo       HANGUL SYLLABLE DI
+  0xB530 === code || // Lo       HANGUL SYLLABLE DDA
+  0xB54C === code || // Lo       HANGUL SYLLABLE DDAE
+  0xB568 === code || // Lo       HANGUL SYLLABLE DDYA
+  0xB584 === code || // Lo       HANGUL SYLLABLE DDYAE
+  0xB5A0 === code || // Lo       HANGUL SYLLABLE DDEO
+  0xB5BC === code || // Lo       HANGUL SYLLABLE DDE
+  0xB5D8 === code || // Lo       HANGUL SYLLABLE DDYEO
+  0xB5F4 === code || // Lo       HANGUL SYLLABLE DDYE
+  0xB610 === code || // Lo       HANGUL SYLLABLE DDO
+  0xB62C === code || // Lo       HANGUL SYLLABLE DDWA
+  0xB648 === code || // Lo       HANGUL SYLLABLE DDWAE
+  0xB664 === code || // Lo       HANGUL SYLLABLE DDOE
+  0xB680 === code || // Lo       HANGUL SYLLABLE DDYO
+  0xB69C === code || // Lo       HANGUL SYLLABLE DDU
+  0xB6B8 === code || // Lo       HANGUL SYLLABLE DDWEO
+  0xB6D4 === code || // Lo       HANGUL SYLLABLE DDWE
+  0xB6F0 === code || // Lo       HANGUL SYLLABLE DDWI
+  0xB70C === code || // Lo       HANGUL SYLLABLE DDYU
+  0xB728 === code || // Lo       HANGUL SYLLABLE DDEU
+  0xB744 === code || // Lo       HANGUL SYLLABLE DDYI
+  0xB760 === code || // Lo       HANGUL SYLLABLE DDI
+  0xB77C === code || // Lo       HANGUL SYLLABLE RA
+  0xB798 === code || // Lo       HANGUL SYLLABLE RAE
+  0xB7B4 === code || // Lo       HANGUL SYLLABLE RYA
+  0xB7D0 === code || // Lo       HANGUL SYLLABLE RYAE
+  0xB7EC === code || // Lo       HANGUL SYLLABLE REO
+  0xB808 === code || // Lo       HANGUL SYLLABLE RE
+  0xB824 === code || // Lo       HANGUL SYLLABLE RYEO
+  0xB840 === code || // Lo       HANGUL SYLLABLE RYE
+  0xB85C === code || // Lo       HANGUL SYLLABLE RO
+  0xB878 === code || // Lo       HANGUL SYLLABLE RWA
+  0xB894 === code || // Lo       HANGUL SYLLABLE RWAE
+  0xB8B0 === code || // Lo       HANGUL SYLLABLE ROE
+  0xB8CC === code || // Lo       HANGUL SYLLABLE RYO
+  0xB8E8 === code || // Lo       HANGUL SYLLABLE RU
+  0xB904 === code || // Lo       HANGUL SYLLABLE RWEO
+  0xB920 === code || // Lo       HANGUL SYLLABLE RWE
+  0xB93C === code || // Lo       HANGUL SYLLABLE RWI
+  0xB958 === code || // Lo       HANGUL SYLLABLE RYU
+  0xB974 === code || // Lo       HANGUL SYLLABLE REU
+  0xB990 === code || // Lo       HANGUL SYLLABLE RYI
+  0xB9AC === code || // Lo       HANGUL SYLLABLE RI
+  0xB9C8 === code || // Lo       HANGUL SYLLABLE MA
+  0xB9E4 === code || // Lo       HANGUL SYLLABLE MAE
+  0xBA00 === code || // Lo       HANGUL SYLLABLE MYA
+  0xBA1C === code || // Lo       HANGUL SYLLABLE MYAE
+  0xBA38 === code || // Lo       HANGUL SYLLABLE MEO
+  0xBA54 === code || // Lo       HANGUL SYLLABLE ME
+  0xBA70 === code || // Lo       HANGUL SYLLABLE MYEO
+  0xBA8C === code || // Lo       HANGUL SYLLABLE MYE
+  0xBAA8 === code || // Lo       HANGUL SYLLABLE MO
+  0xBAC4 === code || // Lo       HANGUL SYLLABLE MWA
+  0xBAE0 === code || // Lo       HANGUL SYLLABLE MWAE
+  0xBAFC === code || // Lo       HANGUL SYLLABLE MOE
+  0xBB18 === code || // Lo       HANGUL SYLLABLE MYO
+  0xBB34 === code || // Lo       HANGUL SYLLABLE MU
+  0xBB50 === code || // Lo       HANGUL SYLLABLE MWEO
+  0xBB6C === code || // Lo       HANGUL SYLLABLE MWE
+  0xBB88 === code || // Lo       HANGUL SYLLABLE MWI
+  0xBBA4 === code || // Lo       HANGUL SYLLABLE MYU
+  0xBBC0 === code || // Lo       HANGUL SYLLABLE MEU
+  0xBBDC === code || // Lo       HANGUL SYLLABLE MYI
+  0xBBF8 === code || // Lo       HANGUL SYLLABLE MI
+  0xBC14 === code || // Lo       HANGUL SYLLABLE BA
+  0xBC30 === code || // Lo       HANGUL SYLLABLE BAE
+  0xBC4C === code || // Lo       HANGUL SYLLABLE BYA
+  0xBC68 === code || // Lo       HANGUL SYLLABLE BYAE
+  0xBC84 === code || // Lo       HANGUL SYLLABLE BEO
+  0xBCA0 === code || // Lo       HANGUL SYLLABLE BE
+  0xBCBC === code || // Lo       HANGUL SYLLABLE BYEO
+  0xBCD8 === code || // Lo       HANGUL SYLLABLE BYE
+  0xBCF4 === code || // Lo       HANGUL SYLLABLE BO
+  0xBD10 === code || // Lo       HANGUL SYLLABLE BWA
+  0xBD2C === code || // Lo       HANGUL SYLLABLE BWAE
+  0xBD48 === code || // Lo       HANGUL SYLLABLE BOE
+  0xBD64 === code || // Lo       HANGUL SYLLABLE BYO
+  0xBD80 === code || // Lo       HANGUL SYLLABLE BU
+  0xBD9C === code || // Lo       HANGUL SYLLABLE BWEO
+  0xBDB8 === code || // Lo       HANGUL SYLLABLE BWE
+  0xBDD4 === code || // Lo       HANGUL SYLLABLE BWI
+  0xBDF0 === code || // Lo       HANGUL SYLLABLE BYU
+  0xBE0C === code || // Lo       HANGUL SYLLABLE BEU
+  0xBE28 === code || // Lo       HANGUL SYLLABLE BYI
+  0xBE44 === code || // Lo       HANGUL SYLLABLE BI
+  0xBE60 === code || // Lo       HANGUL SYLLABLE BBA
+  0xBE7C === code || // Lo       HANGUL SYLLABLE BBAE
+  0xBE98 === code || // Lo       HANGUL SYLLABLE BBYA
+  0xBEB4 === code || // Lo       HANGUL SYLLABLE BBYAE
+  0xBED0 === code || // Lo       HANGUL SYLLABLE BBEO
+  0xBEEC === code || // Lo       HANGUL SYLLABLE BBE
+  0xBF08 === code || // Lo       HANGUL SYLLABLE BBYEO
+  0xBF24 === code || // Lo       HANGUL SYLLABLE BBYE
+  0xBF40 === code || // Lo       HANGUL SYLLABLE BBO
+  0xBF5C === code || // Lo       HANGUL SYLLABLE BBWA
+  0xBF78 === code || // Lo       HANGUL SYLLABLE BBWAE
+  0xBF94 === code || // Lo       HANGUL SYLLABLE BBOE
+  0xBFB0 === code || // Lo       HANGUL SYLLABLE BBYO
+  0xBFCC === code || // Lo       HANGUL SYLLABLE BBU
+  0xBFE8 === code || // Lo       HANGUL SYLLABLE BBWEO
+  0xC004 === code || // Lo       HANGUL SYLLABLE BBWE
+  0xC020 === code || // Lo       HANGUL SYLLABLE BBWI
+  0xC03C === code || // Lo       HANGUL SYLLABLE BBYU
+  0xC058 === code || // Lo       HANGUL SYLLABLE BBEU
+  0xC074 === code || // Lo       HANGUL SYLLABLE BBYI
+  0xC090 === code || // Lo       HANGUL SYLLABLE BBI
+  0xC0AC === code || // Lo       HANGUL SYLLABLE SA
+  0xC0C8 === code || // Lo       HANGUL SYLLABLE SAE
+  0xC0E4 === code || // Lo       HANGUL SYLLABLE SYA
+  0xC100 === code || // Lo       HANGUL SYLLABLE SYAE
+  0xC11C === code || // Lo       HANGUL SYLLABLE SEO
+  0xC138 === code || // Lo       HANGUL SYLLABLE SE
+  0xC154 === code || // Lo       HANGUL SYLLABLE SYEO
+  0xC170 === code || // Lo       HANGUL SYLLABLE SYE
+  0xC18C === code || // Lo       HANGUL SYLLABLE SO
+  0xC1A8 === code || // Lo       HANGUL SYLLABLE SWA
+  0xC1C4 === code || // Lo       HANGUL SYLLABLE SWAE
+  0xC1E0 === code || // Lo       HANGUL SYLLABLE SOE
+  0xC1FC === code || // Lo       HANGUL SYLLABLE SYO
+  0xC218 === code || // Lo       HANGUL SYLLABLE SU
+  0xC234 === code || // Lo       HANGUL SYLLABLE SWEO
+  0xC250 === code || // Lo       HANGUL SYLLABLE SWE
+  0xC26C === code || // Lo       HANGUL SYLLABLE SWI
+  0xC288 === code || // Lo       HANGUL SYLLABLE SYU
+  0xC2A4 === code || // Lo       HANGUL SYLLABLE SEU
+  0xC2C0 === code || // Lo       HANGUL SYLLABLE SYI
+  0xC2DC === code || // Lo       HANGUL SYLLABLE SI
+  0xC2F8 === code || // Lo       HANGUL SYLLABLE SSA
+  0xC314 === code || // Lo       HANGUL SYLLABLE SSAE
+  0xC330 === code || // Lo       HANGUL SYLLABLE SSYA
+  0xC34C === code || // Lo       HANGUL SYLLABLE SSYAE
+  0xC368 === code || // Lo       HANGUL SYLLABLE SSEO
+  0xC384 === code || // Lo       HANGUL SYLLABLE SSE
+  0xC3A0 === code || // Lo       HANGUL SYLLABLE SSYEO
+  0xC3BC === code || // Lo       HANGUL SYLLABLE SSYE
+  0xC3D8 === code || // Lo       HANGUL SYLLABLE SSO
+  0xC3F4 === code || // Lo       HANGUL SYLLABLE SSWA
+  0xC410 === code || // Lo       HANGUL SYLLABLE SSWAE
+  0xC42C === code || // Lo       HANGUL SYLLABLE SSOE
+  0xC448 === code || // Lo       HANGUL SYLLABLE SSYO
+  0xC464 === code || // Lo       HANGUL SYLLABLE SSU
+  0xC480 === code || // Lo       HANGUL SYLLABLE SSWEO
+  0xC49C === code || // Lo       HANGUL SYLLABLE SSWE
+  0xC4B8 === code || // Lo       HANGUL SYLLABLE SSWI
+  0xC4D4 === code || // Lo       HANGUL SYLLABLE SSYU
+  0xC4F0 === code || // Lo       HANGUL SYLLABLE SSEU
+  0xC50C === code || // Lo       HANGUL SYLLABLE SSYI
+  0xC528 === code || // Lo       HANGUL SYLLABLE SSI
+  0xC544 === code || // Lo       HANGUL SYLLABLE A
+  0xC560 === code || // Lo       HANGUL SYLLABLE AE
+  0xC57C === code || // Lo       HANGUL SYLLABLE YA
+  0xC598 === code || // Lo       HANGUL SYLLABLE YAE
+  0xC5B4 === code || // Lo       HANGUL SYLLABLE EO
+  0xC5D0 === code || // Lo       HANGUL SYLLABLE E
+  0xC5EC === code || // Lo       HANGUL SYLLABLE YEO
+  0xC608 === code || // Lo       HANGUL SYLLABLE YE
+  0xC624 === code || // Lo       HANGUL SYLLABLE O
+  0xC640 === code || // Lo       HANGUL SYLLABLE WA
+  0xC65C === code || // Lo       HANGUL SYLLABLE WAE
+  0xC678 === code || // Lo       HANGUL SYLLABLE OE
+  0xC694 === code || // Lo       HANGUL SYLLABLE YO
+  0xC6B0 === code || // Lo       HANGUL SYLLABLE U
+  0xC6CC === code || // Lo       HANGUL SYLLABLE WEO
+  0xC6E8 === code || // Lo       HANGUL SYLLABLE WE
+  0xC704 === code || // Lo       HANGUL SYLLABLE WI
+  0xC720 === code || // Lo       HANGUL SYLLABLE YU
+  0xC73C === code || // Lo       HANGUL SYLLABLE EU
+  0xC758 === code || // Lo       HANGUL SYLLABLE YI
+  0xC774 === code || // Lo       HANGUL SYLLABLE I
+  0xC790 === code || // Lo       HANGUL SYLLABLE JA
+  0xC7AC === code || // Lo       HANGUL SYLLABLE JAE
+  0xC7C8 === code || // Lo       HANGUL SYLLABLE JYA
+  0xC7E4 === code || // Lo       HANGUL SYLLABLE JYAE
+  0xC800 === code || // Lo       HANGUL SYLLABLE JEO
+  0xC81C === code || // Lo       HANGUL SYLLABLE JE
+  0xC838 === code || // Lo       HANGUL SYLLABLE JYEO
+  0xC854 === code || // Lo       HANGUL SYLLABLE JYE
+  0xC870 === code || // Lo       HANGUL SYLLABLE JO
+  0xC88C === code || // Lo       HANGUL SYLLABLE JWA
+  0xC8A8 === code || // Lo       HANGUL SYLLABLE JWAE
+  0xC8C4 === code || // Lo       HANGUL SYLLABLE JOE
+  0xC8E0 === code || // Lo       HANGUL SYLLABLE JYO
+  0xC8FC === code || // Lo       HANGUL SYLLABLE JU
+  0xC918 === code || // Lo       HANGUL SYLLABLE JWEO
+  0xC934 === code || // Lo       HANGUL SYLLABLE JWE
+  0xC950 === code || // Lo       HANGUL SYLLABLE JWI
+  0xC96C === code || // Lo       HANGUL SYLLABLE JYU
+  0xC988 === code || // Lo       HANGUL SYLLABLE JEU
+  0xC9A4 === code || // Lo       HANGUL SYLLABLE JYI
+  0xC9C0 === code || // Lo       HANGUL SYLLABLE JI
+  0xC9DC === code || // Lo       HANGUL SYLLABLE JJA
+  0xC9F8 === code || // Lo       HANGUL SYLLABLE JJAE
+  0xCA14 === code || // Lo       HANGUL SYLLABLE JJYA
+  0xCA30 === code || // Lo       HANGUL SYLLABLE JJYAE
+  0xCA4C === code || // Lo       HANGUL SYLLABLE JJEO
+  0xCA68 === code || // Lo       HANGUL SYLLABLE JJE
+  0xCA84 === code || // Lo       HANGUL SYLLABLE JJYEO
+  0xCAA0 === code || // Lo       HANGUL SYLLABLE JJYE
+  0xCABC === code || // Lo       HANGUL SYLLABLE JJO
+  0xCAD8 === code || // Lo       HANGUL SYLLABLE JJWA
+  0xCAF4 === code || // Lo       HANGUL SYLLABLE JJWAE
+  0xCB10 === code || // Lo       HANGUL SYLLABLE JJOE
+  0xCB2C === code || // Lo       HANGUL SYLLABLE JJYO
+  0xCB48 === code || // Lo       HANGUL SYLLABLE JJU
+  0xCB64 === code || // Lo       HANGUL SYLLABLE JJWEO
+  0xCB80 === code || // Lo       HANGUL SYLLABLE JJWE
+  0xCB9C === code || // Lo       HANGUL SYLLABLE JJWI
+  0xCBB8 === code || // Lo       HANGUL SYLLABLE JJYU
+  0xCBD4 === code || // Lo       HANGUL SYLLABLE JJEU
+  0xCBF0 === code || // Lo       HANGUL SYLLABLE JJYI
+  0xCC0C === code || // Lo       HANGUL SYLLABLE JJI
+  0xCC28 === code || // Lo       HANGUL SYLLABLE CA
+  0xCC44 === code || // Lo       HANGUL SYLLABLE CAE
+  0xCC60 === code || // Lo       HANGUL SYLLABLE CYA
+  0xCC7C === code || // Lo       HANGUL SYLLABLE CYAE
+  0xCC98 === code || // Lo       HANGUL SYLLABLE CEO
+  0xCCB4 === code || // Lo       HANGUL SYLLABLE CE
+  0xCCD0 === code || // Lo       HANGUL SYLLABLE CYEO
+  0xCCEC === code || // Lo       HANGUL SYLLABLE CYE
+  0xCD08 === code || // Lo       HANGUL SYLLABLE CO
+  0xCD24 === code || // Lo       HANGUL SYLLABLE CWA
+  0xCD40 === code || // Lo       HANGUL SYLLABLE CWAE
+  0xCD5C === code || // Lo       HANGUL SYLLABLE COE
+  0xCD78 === code || // Lo       HANGUL SYLLABLE CYO
+  0xCD94 === code || // Lo       HANGUL SYLLABLE CU
+  0xCDB0 === code || // Lo       HANGUL SYLLABLE CWEO
+  0xCDCC === code || // Lo       HANGUL SYLLABLE CWE
+  0xCDE8 === code || // Lo       HANGUL SYLLABLE CWI
+  0xCE04 === code || // Lo       HANGUL SYLLABLE CYU
+  0xCE20 === code || // Lo       HANGUL SYLLABLE CEU
+  0xCE3C === code || // Lo       HANGUL SYLLABLE CYI
+  0xCE58 === code || // Lo       HANGUL SYLLABLE CI
+  0xCE74 === code || // Lo       HANGUL SYLLABLE KA
+  0xCE90 === code || // Lo       HANGUL SYLLABLE KAE
+  0xCEAC === code || // Lo       HANGUL SYLLABLE KYA
+  0xCEC8 === code || // Lo       HANGUL SYLLABLE KYAE
+  0xCEE4 === code || // Lo       HANGUL SYLLABLE KEO
+  0xCF00 === code || // Lo       HANGUL SYLLABLE KE
+  0xCF1C === code || // Lo       HANGUL SYLLABLE KYEO
+  0xCF38 === code || // Lo       HANGUL SYLLABLE KYE
+  0xCF54 === code || // Lo       HANGUL SYLLABLE KO
+  0xCF70 === code || // Lo       HANGUL SYLLABLE KWA
+  0xCF8C === code || // Lo       HANGUL SYLLABLE KWAE
+  0xCFA8 === code || // Lo       HANGUL SYLLABLE KOE
+  0xCFC4 === code || // Lo       HANGUL SYLLABLE KYO
+  0xCFE0 === code || // Lo       HANGUL SYLLABLE KU
+  0xCFFC === code || // Lo       HANGUL SYLLABLE KWEO
+  0xD018 === code || // Lo       HANGUL SYLLABLE KWE
+  0xD034 === code || // Lo       HANGUL SYLLABLE KWI
+  0xD050 === code || // Lo       HANGUL SYLLABLE KYU
+  0xD06C === code || // Lo       HANGUL SYLLABLE KEU
+  0xD088 === code || // Lo       HANGUL SYLLABLE KYI
+  0xD0A4 === code || // Lo       HANGUL SYLLABLE KI
+  0xD0C0 === code || // Lo       HANGUL SYLLABLE TA
+  0xD0DC === code || // Lo       HANGUL SYLLABLE TAE
+  0xD0F8 === code || // Lo       HANGUL SYLLABLE TYA
+  0xD114 === code || // Lo       HANGUL SYLLABLE TYAE
+  0xD130 === code || // Lo       HANGUL SYLLABLE TEO
+  0xD14C === code || // Lo       HANGUL SYLLABLE TE
+  0xD168 === code || // Lo       HANGUL SYLLABLE TYEO
+  0xD184 === code || // Lo       HANGUL SYLLABLE TYE
+  0xD1A0 === code || // Lo       HANGUL SYLLABLE TO
+  0xD1BC === code || // Lo       HANGUL SYLLABLE TWA
+  0xD1D8 === code || // Lo       HANGUL SYLLABLE TWAE
+  0xD1F4 === code || // Lo       HANGUL SYLLABLE TOE
+  0xD210 === code || // Lo       HANGUL SYLLABLE TYO
+  0xD22C === code || // Lo       HANGUL SYLLABLE TU
+  0xD248 === code || // Lo       HANGUL SYLLABLE TWEO
+  0xD264 === code || // Lo       HANGUL SYLLABLE TWE
+  0xD280 === code || // Lo       HANGUL SYLLABLE TWI
+  0xD29C === code || // Lo       HANGUL SYLLABLE TYU
+  0xD2B8 === code || // Lo       HANGUL SYLLABLE TEU
+  0xD2D4 === code || // Lo       HANGUL SYLLABLE TYI
+  0xD2F0 === code || // Lo       HANGUL SYLLABLE TI
+  0xD30C === code || // Lo       HANGUL SYLLABLE PA
+  0xD328 === code || // Lo       HANGUL SYLLABLE PAE
+  0xD344 === code || // Lo       HANGUL SYLLABLE PYA
+  0xD360 === code || // Lo       HANGUL SYLLABLE PYAE
+  0xD37C === code || // Lo       HANGUL SYLLABLE PEO
+  0xD398 === code || // Lo       HANGUL SYLLABLE PE
+  0xD3B4 === code || // Lo       HANGUL SYLLABLE PYEO
+  0xD3D0 === code || // Lo       HANGUL SYLLABLE PYE
+  0xD3EC === code || // Lo       HANGUL SYLLABLE PO
+  0xD408 === code || // Lo       HANGUL SYLLABLE PWA
+  0xD424 === code || // Lo       HANGUL SYLLABLE PWAE
+  0xD440 === code || // Lo       HANGUL SYLLABLE POE
+  0xD45C === code || // Lo       HANGUL SYLLABLE PYO
+  0xD478 === code || // Lo       HANGUL SYLLABLE PU
+  0xD494 === code || // Lo       HANGUL SYLLABLE PWEO
+  0xD4B0 === code || // Lo       HANGUL SYLLABLE PWE
+  0xD4CC === code || // Lo       HANGUL SYLLABLE PWI
+  0xD4E8 === code || // Lo       HANGUL SYLLABLE PYU
+  0xD504 === code || // Lo       HANGUL SYLLABLE PEU
+  0xD520 === code || // Lo       HANGUL SYLLABLE PYI
+  0xD53C === code || // Lo       HANGUL SYLLABLE PI
+  0xD558 === code || // Lo       HANGUL SYLLABLE HA
+  0xD574 === code || // Lo       HANGUL SYLLABLE HAE
+  0xD590 === code || // Lo       HANGUL SYLLABLE HYA
+  0xD5AC === code || // Lo       HANGUL SYLLABLE HYAE
+  0xD5C8 === code || // Lo       HANGUL SYLLABLE HEO
+  0xD5E4 === code || // Lo       HANGUL SYLLABLE HE
+  0xD600 === code || // Lo       HANGUL SYLLABLE HYEO
+  0xD61C === code || // Lo       HANGUL SYLLABLE HYE
+  0xD638 === code || // Lo       HANGUL SYLLABLE HO
+  0xD654 === code || // Lo       HANGUL SYLLABLE HWA
+  0xD670 === code || // Lo       HANGUL SYLLABLE HWAE
+  0xD68C === code || // Lo       HANGUL SYLLABLE HOE
+  0xD6A8 === code || // Lo       HANGUL SYLLABLE HYO
+  0xD6C4 === code || // Lo       HANGUL SYLLABLE HU
+  0xD6E0 === code || // Lo       HANGUL SYLLABLE HWEO
+  0xD6FC === code || // Lo       HANGUL SYLLABLE HWE
+  0xD718 === code || // Lo       HANGUL SYLLABLE HWI
+  0xD734 === code || // Lo       HANGUL SYLLABLE HYU
+  0xD750 === code || // Lo       HANGUL SYLLABLE HEU
+  0xD76C === code || // Lo       HANGUL SYLLABLE HYI
+  0xD788 === code // Lo       HANGUL SYLLABLE HI
+  ) {
+      return LV;
+    }
+
+  if (0xAC01 <= code && code <= 0xAC1B || // Lo  [27] HANGUL SYLLABLE GAG..HANGUL SYLLABLE GAH
+  0xAC1D <= code && code <= 0xAC37 || // Lo  [27] HANGUL SYLLABLE GAEG..HANGUL SYLLABLE GAEH
+  0xAC39 <= code && code <= 0xAC53 || // Lo  [27] HANGUL SYLLABLE GYAG..HANGUL SYLLABLE GYAH
+  0xAC55 <= code && code <= 0xAC6F || // Lo  [27] HANGUL SYLLABLE GYAEG..HANGUL SYLLABLE GYAEH
+  0xAC71 <= code && code <= 0xAC8B || // Lo  [27] HANGUL SYLLABLE GEOG..HANGUL SYLLABLE GEOH
+  0xAC8D <= code && code <= 0xACA7 || // Lo  [27] HANGUL SYLLABLE GEG..HANGUL SYLLABLE GEH
+  0xACA9 <= code && code <= 0xACC3 || // Lo  [27] HANGUL SYLLABLE GYEOG..HANGUL SYLLABLE GYEOH
+  0xACC5 <= code && code <= 0xACDF || // Lo  [27] HANGUL SYLLABLE GYEG..HANGUL SYLLABLE GYEH
+  0xACE1 <= code && code <= 0xACFB || // Lo  [27] HANGUL SYLLABLE GOG..HANGUL SYLLABLE GOH
+  0xACFD <= code && code <= 0xAD17 || // Lo  [27] HANGUL SYLLABLE GWAG..HANGUL SYLLABLE GWAH
+  0xAD19 <= code && code <= 0xAD33 || // Lo  [27] HANGUL SYLLABLE GWAEG..HANGUL SYLLABLE GWAEH
+  0xAD35 <= code && code <= 0xAD4F || // Lo  [27] HANGUL SYLLABLE GOEG..HANGUL SYLLABLE GOEH
+  0xAD51 <= code && code <= 0xAD6B || // Lo  [27] HANGUL SYLLABLE GYOG..HANGUL SYLLABLE GYOH
+  0xAD6D <= code && code <= 0xAD87 || // Lo  [27] HANGUL SYLLABLE GUG..HANGUL SYLLABLE GUH
+  0xAD89 <= code && code <= 0xADA3 || // Lo  [27] HANGUL SYLLABLE GWEOG..HANGUL SYLLABLE GWEOH
+  0xADA5 <= code && code <= 0xADBF || // Lo  [27] HANGUL SYLLABLE GWEG..HANGUL SYLLABLE GWEH
+  0xADC1 <= code && code <= 0xADDB || // Lo  [27] HANGUL SYLLABLE GWIG..HANGUL SYLLABLE GWIH
+  0xADDD <= code && code <= 0xADF7 || // Lo  [27] HANGUL SYLLABLE GYUG..HANGUL SYLLABLE GYUH
+  0xADF9 <= code && code <= 0xAE13 || // Lo  [27] HANGUL SYLLABLE GEUG..HANGUL SYLLABLE GEUH
+  0xAE15 <= code && code <= 0xAE2F || // Lo  [27] HANGUL SYLLABLE GYIG..HANGUL SYLLABLE GYIH
+  0xAE31 <= code && code <= 0xAE4B || // Lo  [27] HANGUL SYLLABLE GIG..HANGUL SYLLABLE GIH
+  0xAE4D <= code && code <= 0xAE67 || // Lo  [27] HANGUL SYLLABLE GGAG..HANGUL SYLLABLE GGAH
+  0xAE69 <= code && code <= 0xAE83 || // Lo  [27] HANGUL SYLLABLE GGAEG..HANGUL SYLLABLE GGAEH
+  0xAE85 <= code && code <= 0xAE9F || // Lo  [27] HANGUL SYLLABLE GGYAG..HANGUL SYLLABLE GGYAH
+  0xAEA1 <= code && code <= 0xAEBB || // Lo  [27] HANGUL SYLLABLE GGYAEG..HANGUL SYLLABLE GGYAEH
+  0xAEBD <= code && code <= 0xAED7 || // Lo  [27] HANGUL SYLLABLE GGEOG..HANGUL SYLLABLE GGEOH
+  0xAED9 <= code && code <= 0xAEF3 || // Lo  [27] HANGUL SYLLABLE GGEG..HANGUL SYLLABLE GGEH
+  0xAEF5 <= code && code <= 0xAF0F || // Lo  [27] HANGUL SYLLABLE GGYEOG..HANGUL SYLLABLE GGYEOH
+  0xAF11 <= code && code <= 0xAF2B || // Lo  [27] HANGUL SYLLABLE GGYEG..HANGUL SYLLABLE GGYEH
+  0xAF2D <= code && code <= 0xAF47 || // Lo  [27] HANGUL SYLLABLE GGOG..HANGUL SYLLABLE GGOH
+  0xAF49 <= code && code <= 0xAF63 || // Lo  [27] HANGUL SYLLABLE GGWAG..HANGUL SYLLABLE GGWAH
+  0xAF65 <= code && code <= 0xAF7F || // Lo  [27] HANGUL SYLLABLE GGWAEG..HANGUL SYLLABLE GGWAEH
+  0xAF81 <= code && code <= 0xAF9B || // Lo  [27] HANGUL SYLLABLE GGOEG..HANGUL SYLLABLE GGOEH
+  0xAF9D <= code && code <= 0xAFB7 || // Lo  [27] HANGUL SYLLABLE GGYOG..HANGUL SYLLABLE GGYOH
+  0xAFB9 <= code && code <= 0xAFD3 || // Lo  [27] HANGUL SYLLABLE GGUG..HANGUL SYLLABLE GGUH
+  0xAFD5 <= code && code <= 0xAFEF || // Lo  [27] HANGUL SYLLABLE GGWEOG..HANGUL SYLLABLE GGWEOH
+  0xAFF1 <= code && code <= 0xB00B || // Lo  [27] HANGUL SYLLABLE GGWEG..HANGUL SYLLABLE GGWEH
+  0xB00D <= code && code <= 0xB027 || // Lo  [27] HANGUL SYLLABLE GGWIG..HANGUL SYLLABLE GGWIH
+  0xB029 <= code && code <= 0xB043 || // Lo  [27] HANGUL SYLLABLE GGYUG..HANGUL SYLLABLE GGYUH
+  0xB045 <= code && code <= 0xB05F || // Lo  [27] HANGUL SYLLABLE GGEUG..HANGUL SYLLABLE GGEUH
+  0xB061 <= code && code <= 0xB07B || // Lo  [27] HANGUL SYLLABLE GGYIG..HANGUL SYLLABLE GGYIH
+  0xB07D <= code && code <= 0xB097 || // Lo  [27] HANGUL SYLLABLE GGIG..HANGUL SYLLABLE GGIH
+  0xB099 <= code && code <= 0xB0B3 || // Lo  [27] HANGUL SYLLABLE NAG..HANGUL SYLLABLE NAH
+  0xB0B5 <= code && code <= 0xB0CF || // Lo  [27] HANGUL SYLLABLE NAEG..HANGUL SYLLABLE NAEH
+  0xB0D1 <= code && code <= 0xB0EB || // Lo  [27] HANGUL SYLLABLE NYAG..HANGUL SYLLABLE NYAH
+  0xB0ED <= code && code <= 0xB107 || // Lo  [27] HANGUL SYLLABLE NYAEG..HANGUL SYLLABLE NYAEH
+  0xB109 <= code && code <= 0xB123 || // Lo  [27] HANGUL SYLLABLE NEOG..HANGUL SYLLABLE NEOH
+  0xB125 <= code && code <= 0xB13F || // Lo  [27] HANGUL SYLLABLE NEG..HANGUL SYLLABLE NEH
+  0xB141 <= code && code <= 0xB15B || // Lo  [27] HANGUL SYLLABLE NYEOG..HANGUL SYLLABLE NYEOH
+  0xB15D <= code && code <= 0xB177 || // Lo  [27] HANGUL SYLLABLE NYEG..HANGUL SYLLABLE NYEH
+  0xB179 <= code && code <= 0xB193 || // Lo  [27] HANGUL SYLLABLE NOG..HANGUL SYLLABLE NOH
+  0xB195 <= code && code <= 0xB1AF || // Lo  [27] HANGUL SYLLABLE NWAG..HANGUL SYLLABLE NWAH
+  0xB1B1 <= code && code <= 0xB1CB || // Lo  [27] HANGUL SYLLABLE NWAEG..HANGUL SYLLABLE NWAEH
+  0xB1CD <= code && code <= 0xB1E7 || // Lo  [27] HANGUL SYLLABLE NOEG..HANGUL SYLLABLE NOEH
+  0xB1E9 <= code && code <= 0xB203 || // Lo  [27] HANGUL SYLLABLE NYOG..HANGUL SYLLABLE NYOH
+  0xB205 <= code && code <= 0xB21F || // Lo  [27] HANGUL SYLLABLE NUG..HANGUL SYLLABLE NUH
+  0xB221 <= code && code <= 0xB23B || // Lo  [27] HANGUL SYLLABLE NWEOG..HANGUL SYLLABLE NWEOH
+  0xB23D <= code && code <= 0xB257 || // Lo  [27] HANGUL SYLLABLE NWEG..HANGUL SYLLABLE NWEH
+  0xB259 <= code && code <= 0xB273 || // Lo  [27] HANGUL SYLLABLE NWIG..HANGUL SYLLABLE NWIH
+  0xB275 <= code && code <= 0xB28F || // Lo  [27] HANGUL SYLLABLE NYUG..HANGUL SYLLABLE NYUH
+  0xB291 <= code && code <= 0xB2AB || // Lo  [27] HANGUL SYLLABLE NEUG..HANGUL SYLLABLE NEUH
+  0xB2AD <= code && code <= 0xB2C7 || // Lo  [27] HANGUL SYLLABLE NYIG..HANGUL SYLLABLE NYIH
+  0xB2C9 <= code && code <= 0xB2E3 || // Lo  [27] HANGUL SYLLABLE NIG..HANGUL SYLLABLE NIH
+  0xB2E5 <= code && code <= 0xB2FF || // Lo  [27] HANGUL SYLLABLE DAG..HANGUL SYLLABLE DAH
+  0xB301 <= code && code <= 0xB31B || // Lo  [27] HANGUL SYLLABLE DAEG..HANGUL SYLLABLE DAEH
+  0xB31D <= code && code <= 0xB337 || // Lo  [27] HANGUL SYLLABLE DYAG..HANGUL SYLLABLE DYAH
+  0xB339 <= code && code <= 0xB353 || // Lo  [27] HANGUL SYLLABLE DYAEG..HANGUL SYLLABLE DYAEH
+  0xB355 <= code && code <= 0xB36F || // Lo  [27] HANGUL SYLLABLE DEOG..HANGUL SYLLABLE DEOH
+  0xB371 <= code && code <= 0xB38B || // Lo  [27] HANGUL SYLLABLE DEG..HANGUL SYLLABLE DEH
+  0xB38D <= code && code <= 0xB3A7 || // Lo  [27] HANGUL SYLLABLE DYEOG..HANGUL SYLLABLE DYEOH
+  0xB3A9 <= code && code <= 0xB3C3 || // Lo  [27] HANGUL SYLLABLE DYEG..HANGUL SYLLABLE DYEH
+  0xB3C5 <= code && code <= 0xB3DF || // Lo  [27] HANGUL SYLLABLE DOG..HANGUL SYLLABLE DOH
+  0xB3E1 <= code && code <= 0xB3FB || // Lo  [27] HANGUL SYLLABLE DWAG..HANGUL SYLLABLE DWAH
+  0xB3FD <= code && code <= 0xB417 || // Lo  [27] HANGUL SYLLABLE DWAEG..HANGUL SYLLABLE DWAEH
+  0xB419 <= code && code <= 0xB433 || // Lo  [27] HANGUL SYLLABLE DOEG..HANGUL SYLLABLE DOEH
+  0xB435 <= code && code <= 0xB44F || // Lo  [27] HANGUL SYLLABLE DYOG..HANGUL SYLLABLE DYOH
+  0xB451 <= code && code <= 0xB46B || // Lo  [27] HANGUL SYLLABLE DUG..HANGUL SYLLABLE DUH
+  0xB46D <= code && code <= 0xB487 || // Lo  [27] HANGUL SYLLABLE DWEOG..HANGUL SYLLABLE DWEOH
+  0xB489 <= code && code <= 0xB4A3 || // Lo  [27] HANGUL SYLLABLE DWEG..HANGUL SYLLABLE DWEH
+  0xB4A5 <= code && code <= 0xB4BF || // Lo  [27] HANGUL SYLLABLE DWIG..HANGUL SYLLABLE DWIH
+  0xB4C1 <= code && code <= 0xB4DB || // Lo  [27] HANGUL SYLLABLE DYUG..HANGUL SYLLABLE DYUH
+  0xB4DD <= code && code <= 0xB4F7 || // Lo  [27] HANGUL SYLLABLE DEUG..HANGUL SYLLABLE DEUH
+  0xB4F9 <= code && code <= 0xB513 || // Lo  [27] HANGUL SYLLABLE DYIG..HANGUL SYLLABLE DYIH
+  0xB515 <= code && code <= 0xB52F || // Lo  [27] HANGUL SYLLABLE DIG..HANGUL SYLLABLE DIH
+  0xB531 <= code && code <= 0xB54B || // Lo  [27] HANGUL SYLLABLE DDAG..HANGUL SYLLABLE DDAH
+  0xB54D <= code && code <= 0xB567 || // Lo  [27] HANGUL SYLLABLE DDAEG..HANGUL SYLLABLE DDAEH
+  0xB569 <= code && code <= 0xB583 || // Lo  [27] HANGUL SYLLABLE DDYAG..HANGUL SYLLABLE DDYAH
+  0xB585 <= code && code <= 0xB59F || // Lo  [27] HANGUL SYLLABLE DDYAEG..HANGUL SYLLABLE DDYAEH
+  0xB5A1 <= code && code <= 0xB5BB || // Lo  [27] HANGUL SYLLABLE DDEOG..HANGUL SYLLABLE DDEOH
+  0xB5BD <= code && code <= 0xB5D7 || // Lo  [27] HANGUL SYLLABLE DDEG..HANGUL SYLLABLE DDEH
+  0xB5D9 <= code && code <= 0xB5F3 || // Lo  [27] HANGUL SYLLABLE DDYEOG..HANGUL SYLLABLE DDYEOH
+  0xB5F5 <= code && code <= 0xB60F || // Lo  [27] HANGUL SYLLABLE DDYEG..HANGUL SYLLABLE DDYEH
+  0xB611 <= code && code <= 0xB62B || // Lo  [27] HANGUL SYLLABLE DDOG..HANGUL SYLLABLE DDOH
+  0xB62D <= code && code <= 0xB647 || // Lo  [27] HANGUL SYLLABLE DDWAG..HANGUL SYLLABLE DDWAH
+  0xB649 <= code && code <= 0xB663 || // Lo  [27] HANGUL SYLLABLE DDWAEG..HANGUL SYLLABLE DDWAEH
+  0xB665 <= code && code <= 0xB67F || // Lo  [27] HANGUL SYLLABLE DDOEG..HANGUL SYLLABLE DDOEH
+  0xB681 <= code && code <= 0xB69B || // Lo  [27] HANGUL SYLLABLE DDYOG..HANGUL SYLLABLE DDYOH
+  0xB69D <= code && code <= 0xB6B7 || // Lo  [27] HANGUL SYLLABLE DDUG..HANGUL SYLLABLE DDUH
+  0xB6B9 <= code && code <= 0xB6D3 || // Lo  [27] HANGUL SYLLABLE DDWEOG..HANGUL SYLLABLE DDWEOH
+  0xB6D5 <= code && code <= 0xB6EF || // Lo  [27] HANGUL SYLLABLE DDWEG..HANGUL SYLLABLE DDWEH
+  0xB6F1 <= code && code <= 0xB70B || // Lo  [27] HANGUL SYLLABLE DDWIG..HANGUL SYLLABLE DDWIH
+  0xB70D <= code && code <= 0xB727 || // Lo  [27] HANGUL SYLLABLE DDYUG..HANGUL SYLLABLE DDYUH
+  0xB729 <= code && code <= 0xB743 || // Lo  [27] HANGUL SYLLABLE DDEUG..HANGUL SYLLABLE DDEUH
+  0xB745 <= code && code <= 0xB75F || // Lo  [27] HANGUL SYLLABLE DDYIG..HANGUL SYLLABLE DDYIH
+  0xB761 <= code && code <= 0xB77B || // Lo  [27] HANGUL SYLLABLE DDIG..HANGUL SYLLABLE DDIH
+  0xB77D <= code && code <= 0xB797 || // Lo  [27] HANGUL SYLLABLE RAG..HANGUL SYLLABLE RAH
+  0xB799 <= code && code <= 0xB7B3 || // Lo  [27] HANGUL SYLLABLE RAEG..HANGUL SYLLABLE RAEH
+  0xB7B5 <= code && code <= 0xB7CF || // Lo  [27] HANGUL SYLLABLE RYAG..HANGUL SYLLABLE RYAH
+  0xB7D1 <= code && code <= 0xB7EB || // Lo  [27] HANGUL SYLLABLE RYAEG..HANGUL SYLLABLE RYAEH
+  0xB7ED <= code && code <= 0xB807 || // Lo  [27] HANGUL SYLLABLE REOG..HANGUL SYLLABLE REOH
+  0xB809 <= code && code <= 0xB823 || // Lo  [27] HANGUL SYLLABLE REG..HANGUL SYLLABLE REH
+  0xB825 <= code && code <= 0xB83F || // Lo  [27] HANGUL SYLLABLE RYEOG..HANGUL SYLLABLE RYEOH
+  0xB841 <= code && code <= 0xB85B || // Lo  [27] HANGUL SYLLABLE RYEG..HANGUL SYLLABLE RYEH
+  0xB85D <= code && code <= 0xB877 || // Lo  [27] HANGUL SYLLABLE ROG..HANGUL SYLLABLE ROH
+  0xB879 <= code && code <= 0xB893 || // Lo  [27] HANGUL SYLLABLE RWAG..HANGUL SYLLABLE RWAH
+  0xB895 <= code && code <= 0xB8AF || // Lo  [27] HANGUL SYLLABLE RWAEG..HANGUL SYLLABLE RWAEH
+  0xB8B1 <= code && code <= 0xB8CB || // Lo  [27] HANGUL SYLLABLE ROEG..HANGUL SYLLABLE ROEH
+  0xB8CD <= code && code <= 0xB8E7 || // Lo  [27] HANGUL SYLLABLE RYOG..HANGUL SYLLABLE RYOH
+  0xB8E9 <= code && code <= 0xB903 || // Lo  [27] HANGUL SYLLABLE RUG..HANGUL SYLLABLE RUH
+  0xB905 <= code && code <= 0xB91F || // Lo  [27] HANGUL SYLLABLE RWEOG..HANGUL SYLLABLE RWEOH
+  0xB921 <= code && code <= 0xB93B || // Lo  [27] HANGUL SYLLABLE RWEG..HANGUL SYLLABLE RWEH
+  0xB93D <= code && code <= 0xB957 || // Lo  [27] HANGUL SYLLABLE RWIG..HANGUL SYLLABLE RWIH
+  0xB959 <= code && code <= 0xB973 || // Lo  [27] HANGUL SYLLABLE RYUG..HANGUL SYLLABLE RYUH
+  0xB975 <= code && code <= 0xB98F || // Lo  [27] HANGUL SYLLABLE REUG..HANGUL SYLLABLE REUH
+  0xB991 <= code && code <= 0xB9AB || // Lo  [27] HANGUL SYLLABLE RYIG..HANGUL SYLLABLE RYIH
+  0xB9AD <= code && code <= 0xB9C7 || // Lo  [27] HANGUL SYLLABLE RIG..HANGUL SYLLABLE RIH
+  0xB9C9 <= code && code <= 0xB9E3 || // Lo  [27] HANGUL SYLLABLE MAG..HANGUL SYLLABLE MAH
+  0xB9E5 <= code && code <= 0xB9FF || // Lo  [27] HANGUL SYLLABLE MAEG..HANGUL SYLLABLE MAEH
+  0xBA01 <= code && code <= 0xBA1B || // Lo  [27] HANGUL SYLLABLE MYAG..HANGUL SYLLABLE MYAH
+  0xBA1D <= code && code <= 0xBA37 || // Lo  [27] HANGUL SYLLABLE MYAEG..HANGUL SYLLABLE MYAEH
+  0xBA39 <= code && code <= 0xBA53 || // Lo  [27] HANGUL SYLLABLE MEOG..HANGUL SYLLABLE MEOH
+  0xBA55 <= code && code <= 0xBA6F || // Lo  [27] HANGUL SYLLABLE MEG..HANGUL SYLLABLE MEH
+  0xBA71 <= code && code <= 0xBA8B || // Lo  [27] HANGUL SYLLABLE MYEOG..HANGUL SYLLABLE MYEOH
+  0xBA8D <= code && code <= 0xBAA7 || // Lo  [27] HANGUL SYLLABLE MYEG..HANGUL SYLLABLE MYEH
+  0xBAA9 <= code && code <= 0xBAC3 || // Lo  [27] HANGUL SYLLABLE MOG..HANGUL SYLLABLE MOH
+  0xBAC5 <= code && code <= 0xBADF || // Lo  [27] HANGUL SYLLABLE MWAG..HANGUL SYLLABLE MWAH
+  0xBAE1 <= code && code <= 0xBAFB || // Lo  [27] HANGUL SYLLABLE MWAEG..HANGUL SYLLABLE MWAEH
+  0xBAFD <= code && code <= 0xBB17 || // Lo  [27] HANGUL SYLLABLE MOEG..HANGUL SYLLABLE MOEH
+  0xBB19 <= code && code <= 0xBB33 || // Lo  [27] HANGUL SYLLABLE MYOG..HANGUL SYLLABLE MYOH
+  0xBB35 <= code && code <= 0xBB4F || // Lo  [27] HANGUL SYLLABLE MUG..HANGUL SYLLABLE MUH
+  0xBB51 <= code && code <= 0xBB6B || // Lo  [27] HANGUL SYLLABLE MWEOG..HANGUL SYLLABLE MWEOH
+  0xBB6D <= code && code <= 0xBB87 || // Lo  [27] HANGUL SYLLABLE MWEG..HANGUL SYLLABLE MWEH
+  0xBB89 <= code && code <= 0xBBA3 || // Lo  [27] HANGUL SYLLABLE MWIG..HANGUL SYLLABLE MWIH
+  0xBBA5 <= code && code <= 0xBBBF || // Lo  [27] HANGUL SYLLABLE MYUG..HANGUL SYLLABLE MYUH
+  0xBBC1 <= code && code <= 0xBBDB || // Lo  [27] HANGUL SYLLABLE MEUG..HANGUL SYLLABLE MEUH
+  0xBBDD <= code && code <= 0xBBF7 || // Lo  [27] HANGUL SYLLABLE MYIG..HANGUL SYLLABLE MYIH
+  0xBBF9 <= code && code <= 0xBC13 || // Lo  [27] HANGUL SYLLABLE MIG..HANGUL SYLLABLE MIH
+  0xBC15 <= code && code <= 0xBC2F || // Lo  [27] HANGUL SYLLABLE BAG..HANGUL SYLLABLE BAH
+  0xBC31 <= code && code <= 0xBC4B || // Lo  [27] HANGUL SYLLABLE BAEG..HANGUL SYLLABLE BAEH
+  0xBC4D <= code && code <= 0xBC67 || // Lo  [27] HANGUL SYLLABLE BYAG..HANGUL SYLLABLE BYAH
+  0xBC69 <= code && code <= 0xBC83 || // Lo  [27] HANGUL SYLLABLE BYAEG..HANGUL SYLLABLE BYAEH
+  0xBC85 <= code && code <= 0xBC9F || // Lo  [27] HANGUL SYLLABLE BEOG..HANGUL SYLLABLE BEOH
+  0xBCA1 <= code && code <= 0xBCBB || // Lo  [27] HANGUL SYLLABLE BEG..HANGUL SYLLABLE BEH
+  0xBCBD <= code && code <= 0xBCD7 || // Lo  [27] HANGUL SYLLABLE BYEOG..HANGUL SYLLABLE BYEOH
+  0xBCD9 <= code && code <= 0xBCF3 || // Lo  [27] HANGUL SYLLABLE BYEG..HANGUL SYLLABLE BYEH
+  0xBCF5 <= code && code <= 0xBD0F || // Lo  [27] HANGUL SYLLABLE BOG..HANGUL SYLLABLE BOH
+  0xBD11 <= code && code <= 0xBD2B || // Lo  [27] HANGUL SYLLABLE BWAG..HANGUL SYLLABLE BWAH
+  0xBD2D <= code && code <= 0xBD47 || // Lo  [27] HANGUL SYLLABLE BWAEG..HANGUL SYLLABLE BWAEH
+  0xBD49 <= code && code <= 0xBD63 || // Lo  [27] HANGUL SYLLABLE BOEG..HANGUL SYLLABLE BOEH
+  0xBD65 <= code && code <= 0xBD7F || // Lo  [27] HANGUL SYLLABLE BYOG..HANGUL SYLLABLE BYOH
+  0xBD81 <= code && code <= 0xBD9B || // Lo  [27] HANGUL SYLLABLE BUG..HANGUL SYLLABLE BUH
+  0xBD9D <= code && code <= 0xBDB7 || // Lo  [27] HANGUL SYLLABLE BWEOG..HANGUL SYLLABLE BWEOH
+  0xBDB9 <= code && code <= 0xBDD3 || // Lo  [27] HANGUL SYLLABLE BWEG..HANGUL SYLLABLE BWEH
+  0xBDD5 <= code && code <= 0xBDEF || // Lo  [27] HANGUL SYLLABLE BWIG..HANGUL SYLLABLE BWIH
+  0xBDF1 <= code && code <= 0xBE0B || // Lo  [27] HANGUL SYLLABLE BYUG..HANGUL SYLLABLE BYUH
+  0xBE0D <= code && code <= 0xBE27 || // Lo  [27] HANGUL SYLLABLE BEUG..HANGUL SYLLABLE BEUH
+  0xBE29 <= code && code <= 0xBE43 || // Lo  [27] HANGUL SYLLABLE BYIG..HANGUL SYLLABLE BYIH
+  0xBE45 <= code && code <= 0xBE5F || // Lo  [27] HANGUL SYLLABLE BIG..HANGUL SYLLABLE BIH
+  0xBE61 <= code && code <= 0xBE7B || // Lo  [27] HANGUL SYLLABLE BBAG..HANGUL SYLLABLE BBAH
+  0xBE7D <= code && code <= 0xBE97 || // Lo  [27] HANGUL SYLLABLE BBAEG..HANGUL SYLLABLE BBAEH
+  0xBE99 <= code && code <= 0xBEB3 || // Lo  [27] HANGUL SYLLABLE BBYAG..HANGUL SYLLABLE BBYAH
+  0xBEB5 <= code && code <= 0xBECF || // Lo  [27] HANGUL SYLLABLE BBYAEG..HANGUL SYLLABLE BBYAEH
+  0xBED1 <= code && code <= 0xBEEB || // Lo  [27] HANGUL SYLLABLE BBEOG..HANGUL SYLLABLE BBEOH
+  0xBEED <= code && code <= 0xBF07 || // Lo  [27] HANGUL SYLLABLE BBEG..HANGUL SYLLABLE BBEH
+  0xBF09 <= code && code <= 0xBF23 || // Lo  [27] HANGUL SYLLABLE BBYEOG..HANGUL SYLLABLE BBYEOH
+  0xBF25 <= code && code <= 0xBF3F || // Lo  [27] HANGUL SYLLABLE BBYEG..HANGUL SYLLABLE BBYEH
+  0xBF41 <= code && code <= 0xBF5B || // Lo  [27] HANGUL SYLLABLE BBOG..HANGUL SYLLABLE BBOH
+  0xBF5D <= code && code <= 0xBF77 || // Lo  [27] HANGUL SYLLABLE BBWAG..HANGUL SYLLABLE BBWAH
+  0xBF79 <= code && code <= 0xBF93 || // Lo  [27] HANGUL SYLLABLE BBWAEG..HANGUL SYLLABLE BBWAEH
+  0xBF95 <= code && code <= 0xBFAF || // Lo  [27] HANGUL SYLLABLE BBOEG..HANGUL SYLLABLE BBOEH
+  0xBFB1 <= code && code <= 0xBFCB || // Lo  [27] HANGUL SYLLABLE BBYOG..HANGUL SYLLABLE BBYOH
+  0xBFCD <= code && code <= 0xBFE7 || // Lo  [27] HANGUL SYLLABLE BBUG..HANGUL SYLLABLE BBUH
+  0xBFE9 <= code && code <= 0xC003 || // Lo  [27] HANGUL SYLLABLE BBWEOG..HANGUL SYLLABLE BBWEOH
+  0xC005 <= code && code <= 0xC01F || // Lo  [27] HANGUL SYLLABLE BBWEG..HANGUL SYLLABLE BBWEH
+  0xC021 <= code && code <= 0xC03B || // Lo  [27] HANGUL SYLLABLE BBWIG..HANGUL SYLLABLE BBWIH
+  0xC03D <= code && code <= 0xC057 || // Lo  [27] HANGUL SYLLABLE BBYUG..HANGUL SYLLABLE BBYUH
+  0xC059 <= code && code <= 0xC073 || // Lo  [27] HANGUL SYLLABLE BBEUG..HANGUL SYLLABLE BBEUH
+  0xC075 <= code && code <= 0xC08F || // Lo  [27] HANGUL SYLLABLE BBYIG..HANGUL SYLLABLE BBYIH
+  0xC091 <= code && code <= 0xC0AB || // Lo  [27] HANGUL SYLLABLE BBIG..HANGUL SYLLABLE BBIH
+  0xC0AD <= code && code <= 0xC0C7 || // Lo  [27] HANGUL SYLLABLE SAG..HANGUL SYLLABLE SAH
+  0xC0C9 <= code && code <= 0xC0E3 || // Lo  [27] HANGUL SYLLABLE SAEG..HANGUL SYLLABLE SAEH
+  0xC0E5 <= code && code <= 0xC0FF || // Lo  [27] HANGUL SYLLABLE SYAG..HANGUL SYLLABLE SYAH
+  0xC101 <= code && code <= 0xC11B || // Lo  [27] HANGUL SYLLABLE SYAEG..HANGUL SYLLABLE SYAEH
+  0xC11D <= code && code <= 0xC137 || // Lo  [27] HANGUL SYLLABLE SEOG..HANGUL SYLLABLE SEOH
+  0xC139 <= code && code <= 0xC153 || // Lo  [27] HANGUL SYLLABLE SEG..HANGUL SYLLABLE SEH
+  0xC155 <= code && code <= 0xC16F || // Lo  [27] HANGUL SYLLABLE SYEOG..HANGUL SYLLABLE SYEOH
+  0xC171 <= code && code <= 0xC18B || // Lo  [27] HANGUL SYLLABLE SYEG..HANGUL SYLLABLE SYEH
+  0xC18D <= code && code <= 0xC1A7 || // Lo  [27] HANGUL SYLLABLE SOG..HANGUL SYLLABLE SOH
+  0xC1A9 <= code && code <= 0xC1C3 || // Lo  [27] HANGUL SYLLABLE SWAG..HANGUL SYLLABLE SWAH
+  0xC1C5 <= code && code <= 0xC1DF || // Lo  [27] HANGUL SYLLABLE SWAEG..HANGUL SYLLABLE SWAEH
+  0xC1E1 <= code && code <= 0xC1FB || // Lo  [27] HANGUL SYLLABLE SOEG..HANGUL SYLLABLE SOEH
+  0xC1FD <= code && code <= 0xC217 || // Lo  [27] HANGUL SYLLABLE SYOG..HANGUL SYLLABLE SYOH
+  0xC219 <= code && code <= 0xC233 || // Lo  [27] HANGUL SYLLABLE SUG..HANGUL SYLLABLE SUH
+  0xC235 <= code && code <= 0xC24F || // Lo  [27] HANGUL SYLLABLE SWEOG..HANGUL SYLLABLE SWEOH
+  0xC251 <= code && code <= 0xC26B || // Lo  [27] HANGUL SYLLABLE SWEG..HANGUL SYLLABLE SWEH
+  0xC26D <= code && code <= 0xC287 || // Lo  [27] HANGUL SYLLABLE SWIG..HANGUL SYLLABLE SWIH
+  0xC289 <= code && code <= 0xC2A3 || // Lo  [27] HANGUL SYLLABLE SYUG..HANGUL SYLLABLE SYUH
+  0xC2A5 <= code && code <= 0xC2BF || // Lo  [27] HANGUL SYLLABLE SEUG..HANGUL SYLLABLE SEUH
+  0xC2C1 <= code && code <= 0xC2DB || // Lo  [27] HANGUL SYLLABLE SYIG..HANGUL SYLLABLE SYIH
+  0xC2DD <= code && code <= 0xC2F7 || // Lo  [27] HANGUL SYLLABLE SIG..HANGUL SYLLABLE SIH
+  0xC2F9 <= code && code <= 0xC313 || // Lo  [27] HANGUL SYLLABLE SSAG..HANGUL SYLLABLE SSAH
+  0xC315 <= code && code <= 0xC32F || // Lo  [27] HANGUL SYLLABLE SSAEG..HANGUL SYLLABLE SSAEH
+  0xC331 <= code && code <= 0xC34B || // Lo  [27] HANGUL SYLLABLE SSYAG..HANGUL SYLLABLE SSYAH
+  0xC34D <= code && code <= 0xC367 || // Lo  [27] HANGUL SYLLABLE SSYAEG..HANGUL SYLLABLE SSYAEH
+  0xC369 <= code && code <= 0xC383 || // Lo  [27] HANGUL SYLLABLE SSEOG..HANGUL SYLLABLE SSEOH
+  0xC385 <= code && code <= 0xC39F || // Lo  [27] HANGUL SYLLABLE SSEG..HANGUL SYLLABLE SSEH
+  0xC3A1 <= code && code <= 0xC3BB || // Lo  [27] HANGUL SYLLABLE SSYEOG..HANGUL SYLLABLE SSYEOH
+  0xC3BD <= code && code <= 0xC3D7 || // Lo  [27] HANGUL SYLLABLE SSYEG..HANGUL SYLLABLE SSYEH
+  0xC3D9 <= code && code <= 0xC3F3 || // Lo  [27] HANGUL SYLLABLE SSOG..HANGUL SYLLABLE SSOH
+  0xC3F5 <= code && code <= 0xC40F || // Lo  [27] HANGUL SYLLABLE SSWAG..HANGUL SYLLABLE SSWAH
+  0xC411 <= code && code <= 0xC42B || // Lo  [27] HANGUL SYLLABLE SSWAEG..HANGUL SYLLABLE SSWAEH
+  0xC42D <= code && code <= 0xC447 || // Lo  [27] HANGUL SYLLABLE SSOEG..HANGUL SYLLABLE SSOEH
+  0xC449 <= code && code <= 0xC463 || // Lo  [27] HANGUL SYLLABLE SSYOG..HANGUL SYLLABLE SSYOH
+  0xC465 <= code && code <= 0xC47F || // Lo  [27] HANGUL SYLLABLE SSUG..HANGUL SYLLABLE SSUH
+  0xC481 <= code && code <= 0xC49B || // Lo  [27] HANGUL SYLLABLE SSWEOG..HANGUL SYLLABLE SSWEOH
+  0xC49D <= code && code <= 0xC4B7 || // Lo  [27] HANGUL SYLLABLE SSWEG..HANGUL SYLLABLE SSWEH
+  0xC4B9 <= code && code <= 0xC4D3 || // Lo  [27] HANGUL SYLLABLE SSWIG..HANGUL SYLLABLE SSWIH
+  0xC4D5 <= code && code <= 0xC4EF || // Lo  [27] HANGUL SYLLABLE SSYUG..HANGUL SYLLABLE SSYUH
+  0xC4F1 <= code && code <= 0xC50B || // Lo  [27] HANGUL SYLLABLE SSEUG..HANGUL SYLLABLE SSEUH
+  0xC50D <= code && code <= 0xC527 || // Lo  [27] HANGUL SYLLABLE SSYIG..HANGUL SYLLABLE SSYIH
+  0xC529 <= code && code <= 0xC543 || // Lo  [27] HANGUL SYLLABLE SSIG..HANGUL SYLLABLE SSIH
+  0xC545 <= code && code <= 0xC55F || // Lo  [27] HANGUL SYLLABLE AG..HANGUL SYLLABLE AH
+  0xC561 <= code && code <= 0xC57B || // Lo  [27] HANGUL SYLLABLE AEG..HANGUL SYLLABLE AEH
+  0xC57D <= code && code <= 0xC597 || // Lo  [27] HANGUL SYLLABLE YAG..HANGUL SYLLABLE YAH
+  0xC599 <= code && code <= 0xC5B3 || // Lo  [27] HANGUL SYLLABLE YAEG..HANGUL SYLLABLE YAEH
+  0xC5B5 <= code && code <= 0xC5CF || // Lo  [27] HANGUL SYLLABLE EOG..HANGUL SYLLABLE EOH
+  0xC5D1 <= code && code <= 0xC5EB || // Lo  [27] HANGUL SYLLABLE EG..HANGUL SYLLABLE EH
+  0xC5ED <= code && code <= 0xC607 || // Lo  [27] HANGUL SYLLABLE YEOG..HANGUL SYLLABLE YEOH
+  0xC609 <= code && code <= 0xC623 || // Lo  [27] HANGUL SYLLABLE YEG..HANGUL SYLLABLE YEH
+  0xC625 <= code && code <= 0xC63F || // Lo  [27] HANGUL SYLLABLE OG..HANGUL SYLLABLE OH
+  0xC641 <= code && code <= 0xC65B || // Lo  [27] HANGUL SYLLABLE WAG..HANGUL SYLLABLE WAH
+  0xC65D <= code && code <= 0xC677 || // Lo  [27] HANGUL SYLLABLE WAEG..HANGUL SYLLABLE WAEH
+  0xC679 <= code && code <= 0xC693 || // Lo  [27] HANGUL SYLLABLE OEG..HANGUL SYLLABLE OEH
+  0xC695 <= code && code <= 0xC6AF || // Lo  [27] HANGUL SYLLABLE YOG..HANGUL SYLLABLE YOH
+  0xC6B1 <= code && code <= 0xC6CB || // Lo  [27] HANGUL SYLLABLE UG..HANGUL SYLLABLE UH
+  0xC6CD <= code && code <= 0xC6E7 || // Lo  [27] HANGUL SYLLABLE WEOG..HANGUL SYLLABLE WEOH
+  0xC6E9 <= code && code <= 0xC703 || // Lo  [27] HANGUL SYLLABLE WEG..HANGUL SYLLABLE WEH
+  0xC705 <= code && code <= 0xC71F || // Lo  [27] HANGUL SYLLABLE WIG..HANGUL SYLLABLE WIH
+  0xC721 <= code && code <= 0xC73B || // Lo  [27] HANGUL SYLLABLE YUG..HANGUL SYLLABLE YUH
+  0xC73D <= code && code <= 0xC757 || // Lo  [27] HANGUL SYLLABLE EUG..HANGUL SYLLABLE EUH
+  0xC759 <= code && code <= 0xC773 || // Lo  [27] HANGUL SYLLABLE YIG..HANGUL SYLLABLE YIH
+  0xC775 <= code && code <= 0xC78F || // Lo  [27] HANGUL SYLLABLE IG..HANGUL SYLLABLE IH
+  0xC791 <= code && code <= 0xC7AB || // Lo  [27] HANGUL SYLLABLE JAG..HANGUL SYLLABLE JAH
+  0xC7AD <= code && code <= 0xC7C7 || // Lo  [27] HANGUL SYLLABLE JAEG..HANGUL SYLLABLE JAEH
+  0xC7C9 <= code && code <= 0xC7E3 || // Lo  [27] HANGUL SYLLABLE JYAG..HANGUL SYLLABLE JYAH
+  0xC7E5 <= code && code <= 0xC7FF || // Lo  [27] HANGUL SYLLABLE JYAEG..HANGUL SYLLABLE JYAEH
+  0xC801 <= code && code <= 0xC81B || // Lo  [27] HANGUL SYLLABLE JEOG..HANGUL SYLLABLE JEOH
+  0xC81D <= code && code <= 0xC837 || // Lo  [27] HANGUL SYLLABLE JEG..HANGUL SYLLABLE JEH
+  0xC839 <= code && code <= 0xC853 || // Lo  [27] HANGUL SYLLABLE JYEOG..HANGUL SYLLABLE JYEOH
+  0xC855 <= code && code <= 0xC86F || // Lo  [27] HANGUL SYLLABLE JYEG..HANGUL SYLLABLE JYEH
+  0xC871 <= code && code <= 0xC88B || // Lo  [27] HANGUL SYLLABLE JOG..HANGUL SYLLABLE JOH
+  0xC88D <= code && code <= 0xC8A7 || // Lo  [27] HANGUL SYLLABLE JWAG..HANGUL SYLLABLE JWAH
+  0xC8A9 <= code && code <= 0xC8C3 || // Lo  [27] HANGUL SYLLABLE JWAEG..HANGUL SYLLABLE JWAEH
+  0xC8C5 <= code && code <= 0xC8DF || // Lo  [27] HANGUL SYLLABLE JOEG..HANGUL SYLLABLE JOEH
+  0xC8E1 <= code && code <= 0xC8FB || // Lo  [27] HANGUL SYLLABLE JYOG..HANGUL SYLLABLE JYOH
+  0xC8FD <= code && code <= 0xC917 || // Lo  [27] HANGUL SYLLABLE JUG..HANGUL SYLLABLE JUH
+  0xC919 <= code && code <= 0xC933 || // Lo  [27] HANGUL SYLLABLE JWEOG..HANGUL SYLLABLE JWEOH
+  0xC935 <= code && code <= 0xC94F || // Lo  [27] HANGUL SYLLABLE JWEG..HANGUL SYLLABLE JWEH
+  0xC951 <= code && code <= 0xC96B || // Lo  [27] HANGUL SYLLABLE JWIG..HANGUL SYLLABLE JWIH
+  0xC96D <= code && code <= 0xC987 || // Lo  [27] HANGUL SYLLABLE JYUG..HANGUL SYLLABLE JYUH
+  0xC989 <= code && code <= 0xC9A3 || // Lo  [27] HANGUL SYLLABLE JEUG..HANGUL SYLLABLE JEUH
+  0xC9A5 <= code && code <= 0xC9BF || // Lo  [27] HANGUL SYLLABLE JYIG..HANGUL SYLLABLE JYIH
+  0xC9C1 <= code && code <= 0xC9DB || // Lo  [27] HANGUL SYLLABLE JIG..HANGUL SYLLABLE JIH
+  0xC9DD <= code && code <= 0xC9F7 || // Lo  [27] HANGUL SYLLABLE JJAG..HANGUL SYLLABLE JJAH
+  0xC9F9 <= code && code <= 0xCA13 || // Lo  [27] HANGUL SYLLABLE JJAEG..HANGUL SYLLABLE JJAEH
+  0xCA15 <= code && code <= 0xCA2F || // Lo  [27] HANGUL SYLLABLE JJYAG..HANGUL SYLLABLE JJYAH
+  0xCA31 <= code && code <= 0xCA4B || // Lo  [27] HANGUL SYLLABLE JJYAEG..HANGUL SYLLABLE JJYAEH
+  0xCA4D <= code && code <= 0xCA67 || // Lo  [27] HANGUL SYLLABLE JJEOG..HANGUL SYLLABLE JJEOH
+  0xCA69 <= code && code <= 0xCA83 || // Lo  [27] HANGUL SYLLABLE JJEG..HANGUL SYLLABLE JJEH
+  0xCA85 <= code && code <= 0xCA9F || // Lo  [27] HANGUL SYLLABLE JJYEOG..HANGUL SYLLABLE JJYEOH
+  0xCAA1 <= code && code <= 0xCABB || // Lo  [27] HANGUL SYLLABLE JJYEG..HANGUL SYLLABLE JJYEH
+  0xCABD <= code && code <= 0xCAD7 || // Lo  [27] HANGUL SYLLABLE JJOG..HANGUL SYLLABLE JJOH
+  0xCAD9 <= code && code <= 0xCAF3 || // Lo  [27] HANGUL SYLLABLE JJWAG..HANGUL SYLLABLE JJWAH
+  0xCAF5 <= code && code <= 0xCB0F || // Lo  [27] HANGUL SYLLABLE JJWAEG..HANGUL SYLLABLE JJWAEH
+  0xCB11 <= code && code <= 0xCB2B || // Lo  [27] HANGUL SYLLABLE JJOEG..HANGUL SYLLABLE JJOEH
+  0xCB2D <= code && code <= 0xCB47 || // Lo  [27] HANGUL SYLLABLE JJYOG..HANGUL SYLLABLE JJYOH
+  0xCB49 <= code && code <= 0xCB63 || // Lo  [27] HANGUL SYLLABLE JJUG..HANGUL SYLLABLE JJUH
+  0xCB65 <= code && code <= 0xCB7F || // Lo  [27] HANGUL SYLLABLE JJWEOG..HANGUL SYLLABLE JJWEOH
+  0xCB81 <= code && code <= 0xCB9B || // Lo  [27] HANGUL SYLLABLE JJWEG..HANGUL SYLLABLE JJWEH
+  0xCB9D <= code && code <= 0xCBB7 || // Lo  [27] HANGUL SYLLABLE JJWIG..HANGUL SYLLABLE JJWIH
+  0xCBB9 <= code && code <= 0xCBD3 || // Lo  [27] HANGUL SYLLABLE JJYUG..HANGUL SYLLABLE JJYUH
+  0xCBD5 <= code && code <= 0xCBEF || // Lo  [27] HANGUL SYLLABLE JJEUG..HANGUL SYLLABLE JJEUH
+  0xCBF1 <= code && code <= 0xCC0B || // Lo  [27] HANGUL SYLLABLE JJYIG..HANGUL SYLLABLE JJYIH
+  0xCC0D <= code && code <= 0xCC27 || // Lo  [27] HANGUL SYLLABLE JJIG..HANGUL SYLLABLE JJIH
+  0xCC29 <= code && code <= 0xCC43 || // Lo  [27] HANGUL SYLLABLE CAG..HANGUL SYLLABLE CAH
+  0xCC45 <= code && code <= 0xCC5F || // Lo  [27] HANGUL SYLLABLE CAEG..HANGUL SYLLABLE CAEH
+  0xCC61 <= code && code <= 0xCC7B || // Lo  [27] HANGUL SYLLABLE CYAG..HANGUL SYLLABLE CYAH
+  0xCC7D <= code && code <= 0xCC97 || // Lo  [27] HANGUL SYLLABLE CYAEG..HANGUL SYLLABLE CYAEH
+  0xCC99 <= code && code <= 0xCCB3 || // Lo  [27] HANGUL SYLLABLE CEOG..HANGUL SYLLABLE CEOH
+  0xCCB5 <= code && code <= 0xCCCF || // Lo  [27] HANGUL SYLLABLE CEG..HANGUL SYLLABLE CEH
+  0xCCD1 <= code && code <= 0xCCEB || // Lo  [27] HANGUL SYLLABLE CYEOG..HANGUL SYLLABLE CYEOH
+  0xCCED <= code && code <= 0xCD07 || // Lo  [27] HANGUL SYLLABLE CYEG..HANGUL SYLLABLE CYEH
+  0xCD09 <= code && code <= 0xCD23 || // Lo  [27] HANGUL SYLLABLE COG..HANGUL SYLLABLE COH
+  0xCD25 <= code && code <= 0xCD3F || // Lo  [27] HANGUL SYLLABLE CWAG..HANGUL SYLLABLE CWAH
+  0xCD41 <= code && code <= 0xCD5B || // Lo  [27] HANGUL SYLLABLE CWAEG..HANGUL SYLLABLE CWAEH
+  0xCD5D <= code && code <= 0xCD77 || // Lo  [27] HANGUL SYLLABLE COEG..HANGUL SYLLABLE COEH
+  0xCD79 <= code && code <= 0xCD93 || // Lo  [27] HANGUL SYLLABLE CYOG..HANGUL SYLLABLE CYOH
+  0xCD95 <= code && code <= 0xCDAF || // Lo  [27] HANGUL SYLLABLE CUG..HANGUL SYLLABLE CUH
+  0xCDB1 <= code && code <= 0xCDCB || // Lo  [27] HANGUL SYLLABLE CWEOG..HANGUL SYLLABLE CWEOH
+  0xCDCD <= code && code <= 0xCDE7 || // Lo  [27] HANGUL SYLLABLE CWEG..HANGUL SYLLABLE CWEH
+  0xCDE9 <= code && code <= 0xCE03 || // Lo  [27] HANGUL SYLLABLE CWIG..HANGUL SYLLABLE CWIH
+  0xCE05 <= code && code <= 0xCE1F || // Lo  [27] HANGUL SYLLABLE CYUG..HANGUL SYLLABLE CYUH
+  0xCE21 <= code && code <= 0xCE3B || // Lo  [27] HANGUL SYLLABLE CEUG..HANGUL SYLLABLE CEUH
+  0xCE3D <= code && code <= 0xCE57 || // Lo  [27] HANGUL SYLLABLE CYIG..HANGUL SYLLABLE CYIH
+  0xCE59 <= code && code <= 0xCE73 || // Lo  [27] HANGUL SYLLABLE CIG..HANGUL SYLLABLE CIH
+  0xCE75 <= code && code <= 0xCE8F || // Lo  [27] HANGUL SYLLABLE KAG..HANGUL SYLLABLE KAH
+  0xCE91 <= code && code <= 0xCEAB || // Lo  [27] HANGUL SYLLABLE KAEG..HANGUL SYLLABLE KAEH
+  0xCEAD <= code && code <= 0xCEC7 || // Lo  [27] HANGUL SYLLABLE KYAG..HANGUL SYLLABLE KYAH
+  0xCEC9 <= code && code <= 0xCEE3 || // Lo  [27] HANGUL SYLLABLE KYAEG..HANGUL SYLLABLE KYAEH
+  0xCEE5 <= code && code <= 0xCEFF || // Lo  [27] HANGUL SYLLABLE KEOG..HANGUL SYLLABLE KEOH
+  0xCF01 <= code && code <= 0xCF1B || // Lo  [27] HANGUL SYLLABLE KEG..HANGUL SYLLABLE KEH
+  0xCF1D <= code && code <= 0xCF37 || // Lo  [27] HANGUL SYLLABLE KYEOG..HANGUL SYLLABLE KYEOH
+  0xCF39 <= code && code <= 0xCF53 || // Lo  [27] HANGUL SYLLABLE KYEG..HANGUL SYLLABLE KYEH
+  0xCF55 <= code && code <= 0xCF6F || // Lo  [27] HANGUL SYLLABLE KOG..HANGUL SYLLABLE KOH
+  0xCF71 <= code && code <= 0xCF8B || // Lo  [27] HANGUL SYLLABLE KWAG..HANGUL SYLLABLE KWAH
+  0xCF8D <= code && code <= 0xCFA7 || // Lo  [27] HANGUL SYLLABLE KWAEG..HANGUL SYLLABLE KWAEH
+  0xCFA9 <= code && code <= 0xCFC3 || // Lo  [27] HANGUL SYLLABLE KOEG..HANGUL SYLLABLE KOEH
+  0xCFC5 <= code && code <= 0xCFDF || // Lo  [27] HANGUL SYLLABLE KYOG..HANGUL SYLLABLE KYOH
+  0xCFE1 <= code && code <= 0xCFFB || // Lo  [27] HANGUL SYLLABLE KUG..HANGUL SYLLABLE KUH
+  0xCFFD <= code && code <= 0xD017 || // Lo  [27] HANGUL SYLLABLE KWEOG..HANGUL SYLLABLE KWEOH
+  0xD019 <= code && code <= 0xD033 || // Lo  [27] HANGUL SYLLABLE KWEG..HANGUL SYLLABLE KWEH
+  0xD035 <= code && code <= 0xD04F || // Lo  [27] HANGUL SYLLABLE KWIG..HANGUL SYLLABLE KWIH
+  0xD051 <= code && code <= 0xD06B || // Lo  [27] HANGUL SYLLABLE KYUG..HANGUL SYLLABLE KYUH
+  0xD06D <= code && code <= 0xD087 || // Lo  [27] HANGUL SYLLABLE KEUG..HANGUL SYLLABLE KEUH
+  0xD089 <= code && code <= 0xD0A3 || // Lo  [27] HANGUL SYLLABLE KYIG..HANGUL SYLLABLE KYIH
+  0xD0A5 <= code && code <= 0xD0BF || // Lo  [27] HANGUL SYLLABLE KIG..HANGUL SYLLABLE KIH
+  0xD0C1 <= code && code <= 0xD0DB || // Lo  [27] HANGUL SYLLABLE TAG..HANGUL SYLLABLE TAH
+  0xD0DD <= code && code <= 0xD0F7 || // Lo  [27] HANGUL SYLLABLE TAEG..HANGUL SYLLABLE TAEH
+  0xD0F9 <= code && code <= 0xD113 || // Lo  [27] HANGUL SYLLABLE TYAG..HANGUL SYLLABLE TYAH
+  0xD115 <= code && code <= 0xD12F || // Lo  [27] HANGUL SYLLABLE TYAEG..HANGUL SYLLABLE TYAEH
+  0xD131 <= code && code <= 0xD14B || // Lo  [27] HANGUL SYLLABLE TEOG..HANGUL SYLLABLE TEOH
+  0xD14D <= code && code <= 0xD167 || // Lo  [27] HANGUL SYLLABLE TEG..HANGUL SYLLABLE TEH
+  0xD169 <= code && code <= 0xD183 || // Lo  [27] HANGUL SYLLABLE TYEOG..HANGUL SYLLABLE TYEOH
+  0xD185 <= code && code <= 0xD19F || // Lo  [27] HANGUL SYLLABLE TYEG..HANGUL SYLLABLE TYEH
+  0xD1A1 <= code && code <= 0xD1BB || // Lo  [27] HANGUL SYLLABLE TOG..HANGUL SYLLABLE TOH
+  0xD1BD <= code && code <= 0xD1D7 || // Lo  [27] HANGUL SYLLABLE TWAG..HANGUL SYLLABLE TWAH
+  0xD1D9 <= code && code <= 0xD1F3 || // Lo  [27] HANGUL SYLLABLE TWAEG..HANGUL SYLLABLE TWAEH
+  0xD1F5 <= code && code <= 0xD20F || // Lo  [27] HANGUL SYLLABLE TOEG..HANGUL SYLLABLE TOEH
+  0xD211 <= code && code <= 0xD22B || // Lo  [27] HANGUL SYLLABLE TYOG..HANGUL SYLLABLE TYOH
+  0xD22D <= code && code <= 0xD247 || // Lo  [27] HANGUL SYLLABLE TUG..HANGUL SYLLABLE TUH
+  0xD249 <= code && code <= 0xD263 || // Lo  [27] HANGUL SYLLABLE TWEOG..HANGUL SYLLABLE TWEOH
+  0xD265 <= code && code <= 0xD27F || // Lo  [27] HANGUL SYLLABLE TWEG..HANGUL SYLLABLE TWEH
+  0xD281 <= code && code <= 0xD29B || // Lo  [27] HANGUL SYLLABLE TWIG..HANGUL SYLLABLE TWIH
+  0xD29D <= code && code <= 0xD2B7 || // Lo  [27] HANGUL SYLLABLE TYUG..HANGUL SYLLABLE TYUH
+  0xD2B9 <= code && code <= 0xD2D3 || // Lo  [27] HANGUL SYLLABLE TEUG..HANGUL SYLLABLE TEUH
+  0xD2D5 <= code && code <= 0xD2EF || // Lo  [27] HANGUL SYLLABLE TYIG..HANGUL SYLLABLE TYIH
+  0xD2F1 <= code && code <= 0xD30B || // Lo  [27] HANGUL SYLLABLE TIG..HANGUL SYLLABLE TIH
+  0xD30D <= code && code <= 0xD327 || // Lo  [27] HANGUL SYLLABLE PAG..HANGUL SYLLABLE PAH
+  0xD329 <= code && code <= 0xD343 || // Lo  [27] HANGUL SYLLABLE PAEG..HANGUL SYLLABLE PAEH
+  0xD345 <= code && code <= 0xD35F || // Lo  [27] HANGUL SYLLABLE PYAG..HANGUL SYLLABLE PYAH
+  0xD361 <= code && code <= 0xD37B || // Lo  [27] HANGUL SYLLABLE PYAEG..HANGUL SYLLABLE PYAEH
+  0xD37D <= code && code <= 0xD397 || // Lo  [27] HANGUL SYLLABLE PEOG..HANGUL SYLLABLE PEOH
+  0xD399 <= code && code <= 0xD3B3 || // Lo  [27] HANGUL SYLLABLE PEG..HANGUL SYLLABLE PEH
+  0xD3B5 <= code && code <= 0xD3CF || // Lo  [27] HANGUL SYLLABLE PYEOG..HANGUL SYLLABLE PYEOH
+  0xD3D1 <= code && code <= 0xD3EB || // Lo  [27] HANGUL SYLLABLE PYEG..HANGUL SYLLABLE PYEH
+  0xD3ED <= code && code <= 0xD407 || // Lo  [27] HANGUL SYLLABLE POG..HANGUL SYLLABLE POH
+  0xD409 <= code && code <= 0xD423 || // Lo  [27] HANGUL SYLLABLE PWAG..HANGUL SYLLABLE PWAH
+  0xD425 <= code && code <= 0xD43F || // Lo  [27] HANGUL SYLLABLE PWAEG..HANGUL SYLLABLE PWAEH
+  0xD441 <= code && code <= 0xD45B || // Lo  [27] HANGUL SYLLABLE POEG..HANGUL SYLLABLE POEH
+  0xD45D <= code && code <= 0xD477 || // Lo  [27] HANGUL SYLLABLE PYOG..HANGUL SYLLABLE PYOH
+  0xD479 <= code && code <= 0xD493 || // Lo  [27] HANGUL SYLLABLE PUG..HANGUL SYLLABLE PUH
+  0xD495 <= code && code <= 0xD4AF || // Lo  [27] HANGUL SYLLABLE PWEOG..HANGUL SYLLABLE PWEOH
+  0xD4B1 <= code && code <= 0xD4CB || // Lo  [27] HANGUL SYLLABLE PWEG..HANGUL SYLLABLE PWEH
+  0xD4CD <= code && code <= 0xD4E7 || // Lo  [27] HANGUL SYLLABLE PWIG..HANGUL SYLLABLE PWIH
+  0xD4E9 <= code && code <= 0xD503 || // Lo  [27] HANGUL SYLLABLE PYUG..HANGUL SYLLABLE PYUH
+  0xD505 <= code && code <= 0xD51F || // Lo  [27] HANGUL SYLLABLE PEUG..HANGUL SYLLABLE PEUH
+  0xD521 <= code && code <= 0xD53B || // Lo  [27] HANGUL SYLLABLE PYIG..HANGUL SYLLABLE PYIH
+  0xD53D <= code && code <= 0xD557 || // Lo  [27] HANGUL SYLLABLE PIG..HANGUL SYLLABLE PIH
+  0xD559 <= code && code <= 0xD573 || // Lo  [27] HANGUL SYLLABLE HAG..HANGUL SYLLABLE HAH
+  0xD575 <= code && code <= 0xD58F || // Lo  [27] HANGUL SYLLABLE HAEG..HANGUL SYLLABLE HAEH
+  0xD591 <= code && code <= 0xD5AB || // Lo  [27] HANGUL SYLLABLE HYAG..HANGUL SYLLABLE HYAH
+  0xD5AD <= code && code <= 0xD5C7 || // Lo  [27] HANGUL SYLLABLE HYAEG..HANGUL SYLLABLE HYAEH
+  0xD5C9 <= code && code <= 0xD5E3 || // Lo  [27] HANGUL SYLLABLE HEOG..HANGUL SYLLABLE HEOH
+  0xD5E5 <= code && code <= 0xD5FF || // Lo  [27] HANGUL SYLLABLE HEG..HANGUL SYLLABLE HEH
+  0xD601 <= code && code <= 0xD61B || // Lo  [27] HANGUL SYLLABLE HYEOG..HANGUL SYLLABLE HYEOH
+  0xD61D <= code && code <= 0xD637 || // Lo  [27] HANGUL SYLLABLE HYEG..HANGUL SYLLABLE HYEH
+  0xD639 <= code && code <= 0xD653 || // Lo  [27] HANGUL SYLLABLE HOG..HANGUL SYLLABLE HOH
+  0xD655 <= code && code <= 0xD66F || // Lo  [27] HANGUL SYLLABLE HWAG..HANGUL SYLLABLE HWAH
+  0xD671 <= code && code <= 0xD68B || // Lo  [27] HANGUL SYLLABLE HWAEG..HANGUL SYLLABLE HWAEH
+  0xD68D <= code && code <= 0xD6A7 || // Lo  [27] HANGUL SYLLABLE HOEG..HANGUL SYLLABLE HOEH
+  0xD6A9 <= code && code <= 0xD6C3 || // Lo  [27] HANGUL SYLLABLE HYOG..HANGUL SYLLABLE HYOH
+  0xD6C5 <= code && code <= 0xD6DF || // Lo  [27] HANGUL SYLLABLE HUG..HANGUL SYLLABLE HUH
+  0xD6E1 <= code && code <= 0xD6FB || // Lo  [27] HANGUL SYLLABLE HWEOG..HANGUL SYLLABLE HWEOH
+  0xD6FD <= code && code <= 0xD717 || // Lo  [27] HANGUL SYLLABLE HWEG..HANGUL SYLLABLE HWEH
+  0xD719 <= code && code <= 0xD733 || // Lo  [27] HANGUL SYLLABLE HWIG..HANGUL SYLLABLE HWIH
+  0xD735 <= code && code <= 0xD74F || // Lo  [27] HANGUL SYLLABLE HYUG..HANGUL SYLLABLE HYUH
+  0xD751 <= code && code <= 0xD76B || // Lo  [27] HANGUL SYLLABLE HEUG..HANGUL SYLLABLE HEUH
+  0xD76D <= code && code <= 0xD787 || // Lo  [27] HANGUL SYLLABLE HYIG..HANGUL SYLLABLE HYIH
+  0xD789 <= code && code <= 0xD7A3 // Lo  [27] HANGUL SYLLABLE HIG..HANGUL SYLLABLE HIH
+  ) {
+      return LVT;
+    } //all unlisted characters have a grapheme break property of "Other"
+
+
+  return Other;
+}
+
+var _default = {
+  splitGraphemes: splitGraphemes,
+  countGraphemes: countGraphemes,
+  nextBreak: nextBreak
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/lexer.js b/dist/core/lexer.js
new file mode 100644
index 000000000..623b37e6e
--- /dev/null
+++ b/dist/core/lexer.js
@@ -0,0 +1,339 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _graphemeSplitter = _interopRequireDefault(require("./grapheme-splitter.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+/**
+ *
+ * A token can be of type:
+ *  - `literal`: the value is the character this token represents. This can be
+ * a combination of Unicode codepoints, for example for emojis.
+ *  - `^` and `_`: superscript and subscript commands.
+ *  - `command`: a command such as `\sin` or `\text` or `\alpha`
+ *  - `{` and `}`: begin and end group (use for arguments of commands and for grouping)
+ *  - `#`: parameter
+ *
+ *  - `placeholder`: a placeholder value meant to be replaced by some actual value
+ *  - `space`: one or more space characters (including tab, etc...)
+ *
+ *  See: [TeX:289](http://tug.org/texlive/devsrc/Build/source/texk/web2c/tex.web)
+ * @property {string} value
+ * @property {string} type
+ * @class module:core/lexer#Token
+ * @private
+ */
+var Token = function Token(type, value) {
+  _classCallCheck(this, Token);
+
+  this.type = type;
+  this.value = value;
+  console.assert(!(type === 'literal' && value === '}'));
+};
+/**
+ * Given a LaTeX expression represented as a character string, 
+ * the Lexer class will scan and return Tokens for the lexical 
+ * units in the string.
+ * 
+ * @param {string} s A string of LaTeX
+ * @class Lexer
+ * @class module:core/lexer#Lexer
+ * @private
+ */
+
+
+var Lexer =
+/*#__PURE__*/
+function () {
+  function Lexer(s) {
+    _classCallCheck(this, Lexer);
+
+    this.s = _graphemeSplitter.default.splitGraphemes(s);
+    this.pos = 0;
+  }
+  /**
+   * @return {boolean} True if we reached the end of the stream
+   * @method module:core/lexer#Lexer#end
+   * @private
+   */
+
+
+  _createClass(Lexer, [{
+    key: "end",
+    value: function end() {
+      return this.pos >= this.s.length;
+    }
+    /**
+     * Return the next char and advance
+     * @return {string}
+     * @method module:core/lexer#Lexer#get
+     */
+
+  }, {
+    key: "get",
+    value: function get() {
+      return this.pos < this.s.length ? this.s[this.pos++] : null;
+    }
+    /**
+     * Return the next char, but do not advance
+     * @return {string}
+     * @method module:core/lexer#Lexer#peek
+     * @private
+     */
+
+  }, {
+    key: "peek",
+    value: function peek() {
+      return this.s[this.pos];
+    }
+    /**
+     * Return the next substring matching regEx and advance.
+     * @param {RegEx} regEx
+     * @return {?string}
+     * @method module:core/lexer#Lexer#scan
+     * @private
+     */
+
+  }, {
+    key: "scan",
+    value: function scan(regEx) {
+      var result; // this.s can either be a string, if it's made up only of ASCII chars
+      // or an array of graphemes, if it's more complicated.
+
+      if (typeof this.s === 'string') {
+        result = regEx.exec(this.s.slice(this.pos));
+      } else {
+        result = regEx.exec(this.s.slice(this.pos).join(''));
+      }
+
+      if (result) {
+        this.pos += result[0].length;
+        return result[0];
+      }
+
+      return null;
+    }
+    /**
+     * Return true if next char is white space. Does not advance.
+     *
+     * See [Stackoverflow](http://stackoverflow.com/questions/6073637/)
+     * @method module:core/lexer#Lexer#isWhiteSpace
+     * @private
+     */
+
+  }, {
+    key: "isWhiteSpace",
+    value: function isWhiteSpace() {
+      return /[ \f\n\r\t\v\xA0\u2028\u2029]/.test(this.s[this.pos]);
+      /*
+          Note that browsers are inconsistent in their definitions of the
+          `\s` metacharacter, so we use an explicit pattern instead.
+      
+          - IE:          `[ \f\n\r\t\v]`
+          - Chrome:      `[ \f\n\r\t\v\u00A0]`
+          - Firefox:     `[ \f\n\r\t\v\u00A0\u2028\u2029]`
+      
+          - \f \u000C: form feed (FORM FEED)
+          - \n \u000A: linefeed (LINE FEED)
+          - \r \u000D: carriage return
+          - \t \u0009: tab (CHARACTER TABULATION)
+          - \v \u000B: vertical tab (LINE TABULATION)
+          - \u00A0: NON-BREAKING SPACE
+          - \u2028: LINE SEPARATOR
+          - \u2029: PARAGRAPH SEPARATOR
+      
+          Could be considered:
+          - \u2000-\u200a spacing
+          - \u202f NARROW NO-BREAK SPACE
+          - \u205F MEDIUM MATHEMATICAL SPACE
+          - \u3000 IDEOGRAPHIC SPACE
+          - \uFEFF ZERO WITH NON-BREAKING SPACE
+      */
+    }
+    /**
+     * Return a single token, or null, created from the lexer.
+     *
+     * @returns {Token}
+     * @method module:core/lexer#Lexer#makeToken
+     * @private
+     */
+
+  }, {
+    key: "makeToken",
+    value: function makeToken() {
+      // If we've reached the end, exit
+      if (this.end()) return null; // Handle white space
+      // Note that in text mode, spaces are significant and can't be coalesced.
+
+      if (this.isWhiteSpace()) {
+        this.get();
+        return new Token('space');
+      }
+
+      var result = null; // Is it a command?
+
+      if (this.peek() === '\\') {
+        this.get(); // Skip the initial \
+
+        if (!this.end()) {
+          // A command is either a string of letters and asterisks...
+          var command = this.scan(/^[a-zA-Z*]+/); // There are a few special commands that are handled here...
+
+          if (command === 'bgroup') {
+            // Begin group, synonym for opening brace
+            result = new Token('{');
+          } else if (command === 'egroup') {
+            // End group, synonym for closing brace
+            result = new Token('}');
+          } else {
+            if (!command) {
+              // ... or a single non-letter character
+              command = this.get();
+            }
+
+            result = new Token('command', command);
+          }
+        } // Is it a group start/end?
+
+      } else if (this.peek() === '{' || this.peek() === '}') {
+        result = new Token(this.get());
+      } else if (this.peek() === '#') {
+        // This could be either a param token, or a literal # (used for
+        // colorspecs, for example). A param token is a '#' followed by
+        // - a digit 0-9 followed by a non-alpha, non-digit
+        // - or '?'.
+        // Otherwise, it's a literal '#'.
+        this.get();
+
+        if (!this.end()) {
+          var isParam = false;
+          var next = this.peek();
+
+          if (/[0-9?]/.test(next)) {
+            // Could be a param
+            isParam = true; // Need to look ahead to the following char
+
+            if (this.pos + 1 < this.s.length) {
+              var after = this.s[this.pos + 1];
+              isParam = /[^0-9A-Za-z]/.test(after);
+            }
+          }
+
+          if (isParam) {
+            result = new Token('#');
+            next = this.get();
+
+            if (next >= '0' && next <= '9') {
+              result.value = parseInt(next);
+            } else {
+              result.value = '?';
+            }
+          } else {
+            result = new Token('literal', '#');
+          }
+        } // result = new Token(this.get());
+        // if (!this.end()) {
+        //     const next = this.get();
+        //     if (next >= '0' && next <= '9') {
+        //         result.value = parseInt(next);
+        //     } else {
+        //         result.value = next;
+        //     }
+        // }
+
+      } else if (this.peek() === '~') {
+        // Spacing
+        this.get();
+        result = new Token('command', 'space');
+      } else if (this.peek() === '$') {
+        // Mode switch
+        this.get();
+
+        if (this.peek() === '$') {
+          // $$
+          this.get();
+          result = new Token('$$');
+        } else {
+          // $
+          result = new Token('$');
+        }
+      } else {
+        result = new Token('literal', this.get());
+      }
+
+      return result;
+    }
+  }]);
+
+  return Lexer;
+}();
+/**
+ * Create Tokens from a stream of LaTeX
+ *
+ * @param {string} s - A string o LaTeX. It can include comments (with the `%`
+ * marker) and multiple lines.
+ * @return {Token[]}
+ * @memberof module:core/lexer
+ * @private
+ */
+
+
+function tokenize(s) {
+  var result = [];
+  var lines = s.toString().split(/\r?\n/);
+  var stream = '';
+  var sep = '';
+  var _iteratorNormalCompletion = true;
+  var _didIteratorError = false;
+  var _iteratorError = undefined;
+
+  try {
+    for (var _iterator = lines[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      var line = _step.value;
+      stream += sep;
+      sep = ' '; // Remove everything after a % (comment marker)
+      // (but \% should be preserved...)
+
+      var m = line.match(/((?:\\%)|[^%])*/);
+      if (m) stream += m[0];
+    }
+  } catch (err) {
+    _didIteratorError = true;
+    _iteratorError = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion && _iterator.return != null) {
+        _iterator.return();
+      }
+    } finally {
+      if (_didIteratorError) {
+        throw _iteratorError;
+      }
+    }
+  }
+
+  var lex = new Lexer(stream);
+
+  while (!lex.end()) {
+    var token = lex.makeToken();
+    if (token) result.push(token);
+  }
+
+  return result;
+}
+
+var _default = {
+  tokenize: tokenize
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/mathAtom.js b/dist/core/mathAtom.js
new file mode 100644
index 000000000..8b33013fa
--- /dev/null
+++ b/dist/core/mathAtom.js
@@ -0,0 +1,2395 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = exports.GREEK_REGEX = void 0;
+
+var _mathstyle = _interopRequireDefault(require("./mathstyle.js"));
+
+var _context = _interopRequireDefault(require("./context.js"));
+
+var _fontMetrics = require("./fontMetrics.js");
+
+var _span3 = _interopRequireDefault(require("./span.js"));
+
+var _delimiters = _interopRequireDefault(require("./delimiters.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
+
+function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
+
+function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
+
+function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var makeSpan = _span3.default.makeSpan;
+var makeOrd = _span3.default.makeOrd;
+var makeInner = _span3.default.makeInner;
+var makeHlist = _span3.default.makeHlist;
+var makeVlist = _span3.default.makeVlist;
+var GREEK_REGEX = /\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5/; // TeX by default auto-italicize latin letters and lowercase greek letters
+
+exports.GREEK_REGEX = GREEK_REGEX;
+var AUTO_ITALIC_REGEX = /^([A-Za-z]|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)$/; // A table of size -> font size for the different sizing functions
+
+var SIZING_MULTIPLIER = {
+  size1: 0.5,
+  size2: 0.7,
+  size3: 0.8,
+  size4: 0.9,
+  size5: 1.0,
+  size6: 1.2,
+  size7: 1.44,
+  size8: 1.73,
+  size9: 2.07,
+  size10: 2.49
+};
+/**
+ * An atom is an object encapsulating an elementary mathematical unit,
+ * independent of its graphical representation.
+ *
+ * It keeps track of the content, while the dimensions, position and style
+ * are tracked by Span objects which are created by the `decompose()` functions.
+ *
+ * @param {string} mode
+ * @param {string} type
+ * @param {string|MathAtom[]} body
+ * @param {Object.<string, any>} [style={}] A set of additional properties to append to
+ * the atom
+ * @return {MathAtom}
+ * @property {string} mode `'display'`, `'command'`, etc...
+ * @property {string} type - Type can be one of:
+ * - `mord`: ordinary symbol, e.g. `x`, `\alpha`
+ * - `textord`: ordinary characters
+ * - `mop`: operators, including special functions, `\sin`, `\sum`, `\cap`.
+ * - `mbin`: binary operator: `+`, `*`, etc...
+ * - `mrel`: relational operator: `=`, `\ne`, etc...
+ * - `mpunct`: punctuation: `,`, `:`, etc...
+ * - `mopen`: opening fence: `(`, `\langle`, etc...
+ * - `mclose`: closing fence: `)`, `\rangle`, etc...
+ * - `minner`: special layout cases, overlap, `\left...\right`
+ *
+ * In addition to these basic types, which correspond to the TeX atom types,
+ * some atoms represent more complex compounds, including:
+ * - `space` and `spacing`: blank space between atoms
+ * - `mathstyle`: to change the math style used: `display` or `text`.
+ * The layout rules are different for each, the latter being more compact and
+ * intended to be incorporated with surrounding non-math text.
+ * - `root`: a group, which has no parent (only one per formula)
+ * - `group`: a simple group of atoms, for example from a `{...}`
+ * - `sizing`: set the size of the font used
+ * - `rule`: draw a line, for the `\rule` command
+ * - `line`: used by `\overline` and `\underline` commands
+ * - `box`: a border drawn around an expression and change its background color
+ * - `overlap`: display a symbol _over_ another
+ * - `overunder`: displays an annotation above or below a symbol
+ * - `array`: a group, which has children arranged in rows. Used
+ * by environments such as `matrix`, `cases`, etc...
+ * - `genfrac`: a generalized fraction: a numerator and denominator, separated
+ * by an optional line, and surrounded by optional fences
+ * - `surd`: a surd, aka root
+ * - `leftright`: used by the `\left` and `\right` commands
+ * - `delim`: some delimiter
+ * - `sizeddelim`: a delimiter that can grow
+ *
+ * The following types are used by the editor:
+ * - `command` indicate a command being entered. The text is displayed in
+ * blue in the editor.
+ * - `error`: indicate a command that is unknown, for example `\xyzy`. The text
+ * is displayed with a wavy red underline in the editor.
+ * - `placeholder`: indicate a temporary item. Placeholders are displayed
+ * as a dashed square in the editor.
+ * - `first`: a special, empty, atom put as the first atom in math lists in
+ * order to be able to position the caret before the first element. Aside from
+ * the caret, they display nothing.
+ *
+ * @property {string|MathAtom[]} body
+ * @property {MathAtom[]} superscript
+ * @property {MathAtom[]} subscript
+ * @property {MathAtom[]} numer
+ * @property {MathAtom[]} denom
+ * 
+ * @property {boolean} captureSelection if true, this atom does not let its
+ * children be selected. Used by the `\enclose` annotations, for example.
+ * 
+ * @property {boolean} skipBoundary if true, when the caret reaches the
+ * first position in this element's body, it automatically moves to the
+ * outside of the element. Conversely, when the caret reaches the position
+ * right after this element, it automatically moves to the last position
+ * inside this element.
+ * 
+ * @class module:core/mathatom#MathAtom
+ * @global
+ * @private
+ */
+
+var MathAtom =
+/*#__PURE__*/
+function () {
+  /**
+   * 
+   * @param {string} mode 
+   * @param {string} type 
+   * @param {string|Array} body 
+   * @param {object} style 
+   */
+  function MathAtom(mode, type, body, style) {
+    _classCallCheck(this, MathAtom);
+
+    this.mode = mode;
+    this.type = type;
+    this.body = body; // Append all the properties in extras to this
+    // This can override the mode, type and body
+
+    this.applyStyle(style);
+  }
+
+  _createClass(MathAtom, [{
+    key: "getStyle",
+    value: function getStyle() {
+      return {
+        color: this.phantom ? 'transparent' : this.color,
+        backgroundColor: this.phantom ? 'transparent' : this.backgroundColor,
+        fontFamily: this.baseFontFamily || this.fontFamily || this.autoFontFamily,
+        fontShape: this.fontShape,
+        fontSeries: this.fontSeries,
+        fontSize: this.fontSize,
+        cssId: this.cssId,
+        cssClass: this.cssClass
+      };
+    }
+  }, {
+    key: "applyStyle",
+    value: function applyStyle(style) {
+      // Always apply the style, even if null. This will also set the 
+      // autoFontFamily, which account for auto-italic. This code path
+      // is used by \char.
+      Object.assign(this, style);
+
+      if (this.fontFamily === 'none') {
+        this.fontFamily = '';
+      }
+
+      if (this.fontShape === 'auto') {
+        this.fontShape = '';
+      }
+
+      if (this.fontSeries === 'auto') {
+        this.fontSeries = '';
+      }
+
+      if (this.color === 'none') {
+        this.color = '';
+      }
+
+      if (this.backgroundColor === 'none') {
+        this.backgroundColor = '';
+      }
+
+      if (this.fontSize === 'auto') {
+        this.fontSize = '';
+      }
+
+      if (this.fontSize) {
+        this.maxFontSize = SIZING_MULTIPLIER[this.fontSize];
+      }
+
+      if (this.mode === 'math') {
+        var symbol = typeof this.body === 'string' ? this.body : '';
+        this.autoFontFamily = 'cmr';
+
+        if (AUTO_ITALIC_REGEX.test(symbol)) {
+          // Auto italicize alphabetic and lowercase greek symbols
+          // in math mode (European style: American style would not
+          // italicize greek letters, but it's TeX's default behavior)
+          this.autoFontFamily = 'math';
+        } else if (/\\imath|\\jmath|\\pounds/.test(symbol)) {
+          // Some characters do not exist in the Math font,
+          // use Main italic instead
+          this.autoFontFamily = 'mainit';
+        } else if (!GREEK_REGEX.test(symbol) && this.baseFontFamily === 'math') {
+          this.autoFontFamily = 'cmr';
+        }
+      } else if (this.mode === 'text') {
+        // A root can be in text mode (root created when creating a representation
+        // of the selection, for copy/paste for example)
+        if (this.type !== 'root') this.type = '';
+        delete this.baseFontFamily;
+        delete this.autoFontFamily;
+      }
+    }
+  }, {
+    key: "getInitialBaseElement",
+    value: function getInitialBaseElement() {
+      var result = this;
+
+      if (Array.isArray(this.body) && this.body.length > 0) {
+        if (this.body[0].type !== 'first') {
+          result = this.body[0].getInitialBaseElement();
+        } else if (this.body[1]) {
+          result = this.body[1].getInitialBaseElement();
+        }
+      }
+
+      return result;
+    }
+  }, {
+    key: "getFinalBaseElement",
+    value: function getFinalBaseElement() {
+      if (Array.isArray(this.body) && this.body.length > 0) {
+        return this.body[this.body.length - 1].getFinalBaseElement();
+      }
+
+      return this;
+    }
+  }, {
+    key: "isCharacterBox",
+    value: function isCharacterBox() {
+      var base = this.getInitialBaseElement();
+      return /minner|mbin|mrel|mpunct|mopen|mclose|textord/.test(base.type);
+    }
+  }, {
+    key: "forEach",
+    value: function forEach(cb) {
+      cb(this);
+
+      if (Array.isArray(this.body)) {
+        var _iteratorNormalCompletion = true;
+        var _didIteratorError = false;
+        var _iteratorError = undefined;
+
+        try {
+          for (var _iterator = this.body[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+            var atom = _step.value;
+            if (atom) atom.forEach(cb);
+          }
+        } catch (err) {
+          _didIteratorError = true;
+          _iteratorError = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion && _iterator.return != null) {
+              _iterator.return();
+            }
+          } finally {
+            if (_didIteratorError) {
+              throw _iteratorError;
+            }
+          }
+        }
+      } else if (this.body && _typeof(this.body) === 'object') {
+        // Note: body can be null, for example 'first' or 'rule'
+        // (and null is an object)
+        cb(this.body);
+      }
+
+      if (this.superscript) {
+        var _iteratorNormalCompletion2 = true;
+        var _didIteratorError2 = false;
+        var _iteratorError2 = undefined;
+
+        try {
+          for (var _iterator2 = this.superscript[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+            var _atom = _step2.value;
+            if (_atom) _atom.forEach(cb);
+          }
+        } catch (err) {
+          _didIteratorError2 = true;
+          _iteratorError2 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+              _iterator2.return();
+            }
+          } finally {
+            if (_didIteratorError2) {
+              throw _iteratorError2;
+            }
+          }
+        }
+      }
+
+      if (this.subscript) {
+        var _iteratorNormalCompletion3 = true;
+        var _didIteratorError3 = false;
+        var _iteratorError3 = undefined;
+
+        try {
+          for (var _iterator3 = this.subscript[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+            var _atom2 = _step3.value;
+            if (_atom2) _atom2.forEach(cb);
+          }
+        } catch (err) {
+          _didIteratorError3 = true;
+          _iteratorError3 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+              _iterator3.return();
+            }
+          } finally {
+            if (_didIteratorError3) {
+              throw _iteratorError3;
+            }
+          }
+        }
+      }
+
+      if (this.overscript) {
+        var _iteratorNormalCompletion4 = true;
+        var _didIteratorError4 = false;
+        var _iteratorError4 = undefined;
+
+        try {
+          for (var _iterator4 = this.overscript[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
+            var _atom3 = _step4.value;
+            if (_atom3) _atom3.forEach(cb);
+          }
+        } catch (err) {
+          _didIteratorError4 = true;
+          _iteratorError4 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
+              _iterator4.return();
+            }
+          } finally {
+            if (_didIteratorError4) {
+              throw _iteratorError4;
+            }
+          }
+        }
+      }
+
+      if (this.underscript) {
+        var _iteratorNormalCompletion5 = true;
+        var _didIteratorError5 = false;
+        var _iteratorError5 = undefined;
+
+        try {
+          for (var _iterator5 = this.underscript[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
+            var _atom4 = _step5.value;
+            if (_atom4) _atom4.forEach(cb);
+          }
+        } catch (err) {
+          _didIteratorError5 = true;
+          _iteratorError5 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
+              _iterator5.return();
+            }
+          } finally {
+            if (_didIteratorError5) {
+              throw _iteratorError5;
+            }
+          }
+        }
+      }
+
+      if (this.numer) {
+        var _iteratorNormalCompletion6 = true;
+        var _didIteratorError6 = false;
+        var _iteratorError6 = undefined;
+
+        try {
+          for (var _iterator6 = this.numer[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
+            var _atom5 = _step6.value;
+            if (_atom5) _atom5.forEach(cb);
+          }
+        } catch (err) {
+          _didIteratorError6 = true;
+          _iteratorError6 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
+              _iterator6.return();
+            }
+          } finally {
+            if (_didIteratorError6) {
+              throw _iteratorError6;
+            }
+          }
+        }
+      }
+
+      if (this.denom) {
+        var _iteratorNormalCompletion7 = true;
+        var _didIteratorError7 = false;
+        var _iteratorError7 = undefined;
+
+        try {
+          for (var _iterator7 = this.denom[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
+            var _atom6 = _step7.value;
+            if (_atom6) _atom6.forEach(cb);
+          }
+        } catch (err) {
+          _didIteratorError7 = true;
+          _iteratorError7 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
+              _iterator7.return();
+            }
+          } finally {
+            if (_didIteratorError7) {
+              throw _iteratorError7;
+            }
+          }
+        }
+      }
+
+      if (this.index) {
+        var _iteratorNormalCompletion8 = true;
+        var _didIteratorError8 = false;
+        var _iteratorError8 = undefined;
+
+        try {
+          for (var _iterator8 = this.index[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
+            var _atom7 = _step8.value;
+            if (_atom7) _atom7.forEach(cb);
+          }
+        } catch (err) {
+          _didIteratorError8 = true;
+          _iteratorError8 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion8 && _iterator8.return != null) {
+              _iterator8.return();
+            }
+          } finally {
+            if (_didIteratorError8) {
+              throw _iteratorError8;
+            }
+          }
+        }
+      }
+
+      if (this.array) {
+        var _iteratorNormalCompletion9 = true;
+        var _didIteratorError9 = false;
+        var _iteratorError9 = undefined;
+
+        try {
+          for (var _iterator9 = this.array[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
+            var row = _step9.value;
+            var _iteratorNormalCompletion10 = true;
+            var _didIteratorError10 = false;
+            var _iteratorError10 = undefined;
+
+            try {
+              for (var _iterator10 = row[Symbol.iterator](), _step10; !(_iteratorNormalCompletion10 = (_step10 = _iterator10.next()).done); _iteratorNormalCompletion10 = true) {
+                var cell = _step10.value;
+                var _iteratorNormalCompletion11 = true;
+                var _didIteratorError11 = false;
+                var _iteratorError11 = undefined;
+
+                try {
+                  for (var _iterator11 = cell[Symbol.iterator](), _step11; !(_iteratorNormalCompletion11 = (_step11 = _iterator11.next()).done); _iteratorNormalCompletion11 = true) {
+                    var _atom8 = _step11.value;
+
+                    _atom8.forEach(cb);
+                  }
+                } catch (err) {
+                  _didIteratorError11 = true;
+                  _iteratorError11 = err;
+                } finally {
+                  try {
+                    if (!_iteratorNormalCompletion11 && _iterator11.return != null) {
+                      _iterator11.return();
+                    }
+                  } finally {
+                    if (_didIteratorError11) {
+                      throw _iteratorError11;
+                    }
+                  }
+                }
+              }
+            } catch (err) {
+              _didIteratorError10 = true;
+              _iteratorError10 = err;
+            } finally {
+              try {
+                if (!_iteratorNormalCompletion10 && _iterator10.return != null) {
+                  _iterator10.return();
+                }
+              } finally {
+                if (_didIteratorError10) {
+                  throw _iteratorError10;
+                }
+              }
+            }
+          }
+        } catch (err) {
+          _didIteratorError9 = true;
+          _iteratorError9 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion9 && _iterator9.return != null) {
+              _iterator9.return();
+            }
+          } finally {
+            if (_didIteratorError9) {
+              throw _iteratorError9;
+            }
+          }
+        }
+      }
+    }
+    /**
+     * Iterate over all the child atoms of this atom, this included,
+     * and return an array of all the atoms for which the predicate callback
+     * is true.
+     *
+     * @return {MathAtom[]}
+     * @method MathAtom#filter
+     */
+
+  }, {
+    key: "filter",
+    value: function filter(cb) {
+      var result = [];
+      if (cb(this)) result.push(this);
+
+      for (var _i = 0, _arr = ['body', 'superscript', 'subscript', 'overscript', 'underscript', 'numer', 'denom', 'index']; _i < _arr.length; _i++) {
+        var relation = _arr[_i];
+
+        if (Array.isArray(this[relation])) {
+          var _iteratorNormalCompletion14 = true;
+          var _didIteratorError14 = false;
+          var _iteratorError14 = undefined;
+
+          try {
+            for (var _iterator14 = this[relation][Symbol.iterator](), _step14; !(_iteratorNormalCompletion14 = (_step14 = _iterator14.next()).done); _iteratorNormalCompletion14 = true) {
+              var atom = _step14.value;
+              if (atom) result = result.concat(atom.filter(cb));
+            }
+          } catch (err) {
+            _didIteratorError14 = true;
+            _iteratorError14 = err;
+          } finally {
+            try {
+              if (!_iteratorNormalCompletion14 && _iterator14.return != null) {
+                _iterator14.return();
+              }
+            } finally {
+              if (_didIteratorError14) {
+                throw _iteratorError14;
+              }
+            }
+          }
+        }
+      }
+
+      if (Array.isArray(this.array)) {
+        var _iteratorNormalCompletion12 = true;
+        var _didIteratorError12 = false;
+        var _iteratorError12 = undefined;
+
+        try {
+          for (var _iterator12 = this.array[Symbol.iterator](), _step12; !(_iteratorNormalCompletion12 = (_step12 = _iterator12.next()).done); _iteratorNormalCompletion12 = true) {
+            var row = _step12.value;
+            var _iteratorNormalCompletion13 = true;
+            var _didIteratorError13 = false;
+            var _iteratorError13 = undefined;
+
+            try {
+              for (var _iterator13 = row[Symbol.iterator](), _step13; !(_iteratorNormalCompletion13 = (_step13 = _iterator13.next()).done); _iteratorNormalCompletion13 = true) {
+                var cell = _step13.value;
+                if (cell) result = result.concat(cell.filter(cb));
+              }
+            } catch (err) {
+              _didIteratorError13 = true;
+              _iteratorError13 = err;
+            } finally {
+              try {
+                if (!_iteratorNormalCompletion13 && _iterator13.return != null) {
+                  _iterator13.return();
+                }
+              } finally {
+                if (_didIteratorError13) {
+                  throw _iteratorError13;
+                }
+              }
+            }
+          }
+        } catch (err) {
+          _didIteratorError12 = true;
+          _iteratorError12 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion12 && _iterator12.return != null) {
+              _iterator12.return();
+            }
+          } finally {
+            if (_didIteratorError12) {
+              throw _iteratorError12;
+            }
+          }
+        }
+      }
+
+      return result;
+    }
+  }, {
+    key: "decomposeGroup",
+    value: function decomposeGroup(context) {
+      // The scope of the context is this group, so clone it
+      // so that any changes to it will be discarded when finished
+      // with this group.
+      // Note that the mathstyle property is optional and could be undefined
+      // If that's the case, clone() returns a clone of the
+      // context with the same mathstyle.
+      var localContext = context.clone({
+        mathstyle: this.mathstyle
+      });
+      var span = makeOrd(_decompose(localContext, this.body));
+      if (this.cssId) span.cssId = this.cssId;
+      span.applyStyle({
+        backgroundColor: this.backgroundColor,
+        cssClass: this.cssClass
+      });
+      return span;
+    }
+  }, {
+    key: "decomposeArray",
+    value: function decomposeArray(context) {
+      // See http://tug.ctan.org/macros/latex/base/ltfsstrc.dtx
+      // and http://tug.ctan.org/macros/latex/base/lttab.dtx
+      var colFormat = this.colFormat;
+
+      if (colFormat && colFormat.length === 0) {
+        colFormat = [{
+          align: 'l'
+        }];
+      }
+
+      if (!colFormat) {
+        colFormat = [{
+          align: 'l'
+        }, {
+          align: 'l'
+        }, {
+          align: 'l'
+        }, {
+          align: 'l'
+        }, {
+          align: 'l'
+        }, {
+          align: 'l'
+        }, {
+          align: 'l'
+        }, {
+          align: 'l'
+        }, {
+          align: 'l'
+        }, {
+          align: 'l'
+        }];
+      } // Fold the array so that there are no more columns of content than
+      // there are columns prescribed by the column format.
+
+
+      var array = [];
+      var colMax = 0; // Maximum number of columns of content
+
+      var _iteratorNormalCompletion15 = true;
+      var _didIteratorError15 = false;
+      var _iteratorError15 = undefined;
+
+      try {
+        for (var _iterator15 = colFormat[Symbol.iterator](), _step15; !(_iteratorNormalCompletion15 = (_step15 = _iterator15.next()).done); _iteratorNormalCompletion15 = true) {
+          var colSpec = _step15.value;
+          if (colSpec.align) colMax++;
+        }
+      } catch (err) {
+        _didIteratorError15 = true;
+        _iteratorError15 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion15 && _iterator15.return != null) {
+            _iterator15.return();
+          }
+        } finally {
+          if (_didIteratorError15) {
+            throw _iteratorError15;
+          }
+        }
+      }
+
+      var _iteratorNormalCompletion16 = true;
+      var _didIteratorError16 = false;
+      var _iteratorError16 = undefined;
+
+      try {
+        for (var _iterator16 = this.array[Symbol.iterator](), _step16; !(_iteratorNormalCompletion16 = (_step16 = _iterator16.next()).done); _iteratorNormalCompletion16 = true) {
+          var _row = _step16.value;
+          var _colIndex = 0;
+
+          while (_colIndex < _row.length) {
+            var newRow = [];
+            var lastCol = Math.min(_row.length, _colIndex + colMax);
+
+            while (_colIndex < lastCol) {
+              newRow.push(_row[_colIndex++]);
+            }
+
+            array.push(newRow);
+          }
+        } // If the last row is empty, ignore it.
+
+      } catch (err) {
+        _didIteratorError16 = true;
+        _iteratorError16 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion16 && _iterator16.return != null) {
+            _iterator16.return();
+          }
+        } finally {
+          if (_didIteratorError16) {
+            throw _iteratorError16;
+          }
+        }
+      }
+
+      if (array[array.length - 1].length === 1 && array[array.length - 1][0].length === 0) {
+        array.pop();
+      }
+
+      var mathstyle = _mathstyle.default.toMathstyle(this.mathstyle) || context.mathstyle; // Row spacing
+      // Default \arraystretch from lttab.dtx
+
+      var arraystretch = this.arraystretch || 1;
+      var arrayskip = arraystretch * _fontMetrics.METRICS.baselineskip;
+      var arstrutHeight = 0.7 * arrayskip;
+      var arstrutDepth = 0.3 * arrayskip; // \@arstrutbox in lttab.dtx
+
+      var totalHeight = 0;
+      var nc = 0;
+      var body = [];
+      var nr = array.length;
+
+      for (var r = 0; r < nr; ++r) {
+        var inrow = array[r];
+        nc = Math.max(nc, inrow.length);
+        var height = arstrutHeight; // \@array adds an \@arstrut
+
+        var depth = arstrutDepth; // to each row (via the template)
+
+        var outrow = [];
+
+        for (var c = 0; c < inrow.length; ++c) {
+          var localContext = context.clone({
+            mathstyle: this.mathstyle
+          });
+          var cell = _decompose(localContext, inrow[c]) || [];
+          var elt = [makeOrd(null)].concat(cell);
+          depth = Math.max(depth, _span3.default.depth(elt));
+          height = Math.max(height, _span3.default.height(elt));
+          outrow.push(elt);
+        }
+
+        var jot = r === nr - 1 ? 0 : this.jot || 0;
+
+        if (this.rowGaps && this.rowGaps[r]) {
+          jot = this.rowGaps[r];
+
+          if (jot > 0) {
+            // \@argarraycr
+            jot += arstrutDepth;
+
+            if (depth < jot) {
+              depth = jot; // \@xargarraycr
+            }
+
+            jot = 0;
+          }
+        }
+
+        outrow.height = height;
+        outrow.depth = depth;
+        totalHeight += height;
+        outrow.pos = totalHeight;
+        totalHeight += depth + jot; // \@yargarraycr
+
+        body.push(outrow);
+      }
+
+      var offset = totalHeight / 2 + mathstyle.metrics.axisHeight;
+      var contentCols = [];
+
+      for (var colIndex = 0; colIndex < nc; colIndex++) {
+        var col = [];
+
+        for (var _i2 = 0, _body = body; _i2 < _body.length; _i2++) {
+          var row = _body[_i2];
+          var elem = row[colIndex];
+
+          if (!elem) {
+            continue;
+          }
+
+          elem.depth = row.depth;
+          elem.height = row.height;
+          col.push(elem);
+          col.push(row.pos - offset);
+        }
+
+        if (col.length > 0) {
+          contentCols.push(makeVlist(context, col, 'individualShift'));
+        }
+      } // Iterate over each column description.
+      // Each `colDesc` will indicate whether to insert a gap, a rule or
+      // a column from 'contentCols'
+
+
+      var cols = [];
+      var prevColContent = false;
+      var prevColRule = false;
+      var currentContentCol = 0;
+      var firstColumn = !this.lFence;
+      var _iteratorNormalCompletion17 = true;
+      var _didIteratorError17 = false;
+      var _iteratorError17 = undefined;
+
+      try {
+        for (var _iterator17 = colFormat[Symbol.iterator](), _step17; !(_iteratorNormalCompletion17 = (_step17 = _iterator17.next()).done); _iteratorNormalCompletion17 = true) {
+          var colDesc = _step17.value;
+
+          if (colDesc.align && currentContentCol >= contentCols.length) {
+            break;
+          } else if (colDesc.align && currentContentCol < contentCols.length) {
+            // If an alignment is specified, insert a column of content
+            if (prevColContent) {
+              // If no gap was provided, insert a default gap between
+              // consecutive columns of content
+              cols.push(makeColGap(2 * _fontMetrics.METRICS.arraycolsep));
+            } else if (prevColRule || firstColumn) {
+              // If the previous column was a rule or this is the first column
+              // add a smaller gap
+              cols.push(makeColGap(_fontMetrics.METRICS.arraycolsep));
+            }
+
+            cols.push(makeSpan(contentCols[currentContentCol], 'col-align-' + colDesc.align));
+            currentContentCol++;
+            prevColContent = true;
+            prevColRule = false;
+            firstColumn = false;
+          } else if (typeof colDesc.gap !== 'undefined') {
+            // Something to insert in between columns of content
+            if (typeof colDesc.gap === 'number') {
+              // It's a number, indicating how much space, in em,
+              // to leave in between columns
+              cols.push(makeColGap(colDesc.gap));
+            } else {
+              // It's a mathlist
+              // Create a column made up of the mathlist
+              // as many times as there are rows.
+              cols.push(makeColOfRepeatingElements(context, body, offset, colDesc.gap));
+            }
+
+            prevColContent = false;
+            prevColRule = false;
+            firstColumn = false;
+          } else if (colDesc.rule) {
+            // It's a rule.
+            var separator = makeSpan(null, 'vertical-separator');
+            separator.setStyle('height', totalHeight, 'em'); // result.setTop((1 - context.mathstyle.sizeMultiplier) *
+            //     context.mathstyle.metrics.axisHeight);
+
+            separator.setStyle('margin-top', 3 * context.mathstyle.metrics.axisHeight - offset, 'em');
+            separator.setStyle('vertical-align', 'top'); // separator.setStyle('display', 'inline-block');
+
+            var gap = 0;
+
+            if (prevColRule) {
+              gap = _fontMetrics.METRICS.doubleRuleSep - _fontMetrics.METRICS.arrayrulewidth;
+            } else if (prevColContent) {
+              gap = _fontMetrics.METRICS.arraycolsep - _fontMetrics.METRICS.arrayrulewidth;
+            }
+
+            separator.setLeft(gap, 'em');
+            cols.push(separator);
+            prevColContent = false;
+            prevColRule = true;
+            firstColumn = false;
+          }
+        }
+      } catch (err) {
+        _didIteratorError17 = true;
+        _iteratorError17 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion17 && _iterator17.return != null) {
+            _iterator17.return();
+          }
+        } finally {
+          if (_didIteratorError17) {
+            throw _iteratorError17;
+          }
+        }
+      }
+
+      if (prevColContent && !this.rFence) {
+        // If the last column was content, add a small gap
+        cols.push(makeColGap(_fontMetrics.METRICS.arraycolsep));
+      }
+
+      if ((!this.lFence || this.lFence === '.') && (!this.rFence || this.rFence === '.')) {
+        // There are no delimiters around the array, just return what
+        // we've built so far.
+        return makeOrd(cols, 'mtable');
+      } // There is at least one delimiter. Wrap the core of the array with
+      // appropriate left and right delimiters
+      // const inner = makeSpan(makeSpan(cols, 'mtable'), 'mord');
+
+
+      var inner = makeSpan(cols, 'mtable');
+
+      var innerHeight = _span3.default.height(inner);
+
+      var innerDepth = _span3.default.depth(inner);
+
+      return makeOrd([this.bind(context, _delimiters.default.makeLeftRightDelim('mopen', this.lFence, innerHeight, innerDepth, context)), inner, this.bind(context, _delimiters.default.makeLeftRightDelim('mclose', this.rFence, innerHeight, innerDepth, context))]);
+    }
+    /**
+     * Gengrac -- Generalized fraction
+     *
+     * Decompose fractions, binomials, and in general anything made
+     * of two expressions on top of each other, optionally separated by a bar,
+     * and optionally surrounded by fences (parentheses, brackets, etc...)
+     *
+     * Depending on the type of fraction the mathstyle is either
+     * display math or inline math (which is indicated by 'textstyle'). This value can
+     * also be set to 'auto', which indicates it should use the current mathstyle
+     *
+     * @method MathAtom#decomposeGenfrac
+     */
+
+  }, {
+    key: "decomposeGenfrac",
+    value: function decomposeGenfrac(context) {
+      var mathstyle = this.mathstyle === 'auto' ? context.mathstyle : _mathstyle.default.toMathstyle(this.mathstyle);
+      var newContext = context.clone({
+        mathstyle: mathstyle
+      });
+      var numer = [];
+
+      if (this.numerPrefix) {
+        numer.push(makeOrd(this.numerPrefix));
+      }
+
+      var numeratorStyle = this.continuousFraction ? mathstyle : mathstyle.fracNum();
+      numer = numer.concat(_decompose(newContext.clone({
+        mathstyle: numeratorStyle
+      }), this.numer));
+      var numerReset = makeHlist(numer, context.mathstyle.adjustTo(numeratorStyle));
+      var denom = [];
+
+      if (this.denomPrefix) {
+        denom.push(makeOrd(this.denomPrefix));
+      }
+
+      var denominatorStyle = this.continuousFraction ? mathstyle : mathstyle.fracDen();
+      denom = denom.concat(_decompose(newContext.clone({
+        mathstyle: denominatorStyle
+      }), this.denom));
+      var denomReset = makeHlist(denom, context.mathstyle.adjustTo(denominatorStyle));
+      var ruleWidth = !this.hasBarLine ? 0 : _fontMetrics.METRICS.defaultRuleThickness / mathstyle.sizeMultiplier; // Rule 15b from Appendix G
+
+      var numShift;
+      var clearance;
+      var denomShift;
+
+      if (mathstyle.size === _mathstyle.default.DISPLAY.size) {
+        numShift = mathstyle.metrics.num1;
+
+        if (ruleWidth > 0) {
+          clearance = 3 * ruleWidth;
+        } else {
+          clearance = 7 * _fontMetrics.METRICS.defaultRuleThickness;
+        }
+
+        denomShift = mathstyle.metrics.denom1;
+      } else {
+        if (ruleWidth > 0) {
+          numShift = mathstyle.metrics.num2;
+          clearance = ruleWidth;
+        } else {
+          numShift = mathstyle.metrics.num3;
+          clearance = 3 * _fontMetrics.METRICS.defaultRuleThickness;
+        }
+
+        denomShift = mathstyle.metrics.denom2;
+      }
+
+      var numerDepth = numerReset ? numerReset.depth : 0;
+      var denomHeight = denomReset ? denomReset.height : 0;
+      var frac;
+
+      if (ruleWidth === 0) {
+        // Rule 15c from Appendix G
+        // No bar line between numerator and denominator
+        var candidateClearance = numShift - numerDepth - (denomHeight - denomShift);
+
+        if (candidateClearance < clearance) {
+          numShift += 0.5 * (clearance - candidateClearance);
+          denomShift += 0.5 * (clearance - candidateClearance);
+        }
+
+        frac = makeVlist(newContext, [numerReset, -numShift, denomReset, denomShift], 'individualShift');
+      } else {
+        // Rule 15d from Appendix G
+        // There is a bar line between the numerator and the denominator
+        var axisHeight = mathstyle.metrics.axisHeight;
+
+        if (numShift - numerDepth - (axisHeight + 0.5 * ruleWidth) < clearance) {
+          numShift += clearance - (numShift - numerDepth - (axisHeight + 0.5 * ruleWidth));
+        }
+
+        if (axisHeight - 0.5 * ruleWidth - (denomHeight - denomShift) < clearance) {
+          denomShift += clearance - (axisHeight - 0.5 * ruleWidth - (denomHeight - denomShift));
+        }
+
+        var mid = makeSpan(null,
+        /* newContext.mathstyle.adjustTo(Mathstyle.TEXT) + */
+        ' frac-line');
+        mid.applyStyle(this.getStyle()); // @todo: do we really need to reset the size?
+        // Manually set the height of the line because its height is
+        // created in CSS
+
+        mid.height = ruleWidth;
+        var elements = [];
+
+        if (numerReset) {
+          elements.push(numerReset);
+          elements.push(-numShift);
+        }
+
+        elements.push(mid);
+        elements.push(ruleWidth / 2 - axisHeight);
+
+        if (denomReset) {
+          elements.push(denomReset);
+          elements.push(denomShift);
+        }
+
+        frac = makeVlist(newContext, elements, 'individualShift');
+      } // Add a 'mfrac' class to provide proper context for
+      // other css selectors (such as 'frac-line')
+
+
+      frac.classes += ' mfrac'; // Since we manually change the style sometimes (with \dfrac or \tfrac),
+      // account for the possible size change here.
+
+      frac.height *= mathstyle.sizeMultiplier / context.mathstyle.sizeMultiplier;
+      frac.depth *= mathstyle.sizeMultiplier / context.mathstyle.sizeMultiplier; // if (!this.leftDelim && !this.rightDelim) {
+      //     return makeOrd(frac,
+      //         context.parentMathstyle.adjustTo(mathstyle) +
+      //         ((context.parentSize !== context.size) ?
+      //             (' sizing reset-' + context.parentSize + ' ' + context.size) : ''));
+      // }
+      // Rule 15e of Appendix G
+
+      var delimSize = mathstyle.size === _mathstyle.default.DISPLAY.size ? mathstyle.metrics.delim1 : mathstyle.metrics.delim2; // Optional delimiters
+
+      var leftDelim = _delimiters.default.makeCustomSizedDelim('mopen', this.leftDelim, delimSize, true, context.clone({
+        mathstyle: mathstyle
+      }));
+
+      var rightDelim = _delimiters.default.makeCustomSizedDelim('mclose', this.rightDelim, delimSize, true, context.clone({
+        mathstyle: mathstyle
+      }));
+
+      leftDelim.applyStyle(this.getStyle());
+      rightDelim.applyStyle(this.getStyle());
+      var result = makeOrd([leftDelim, frac, rightDelim], context.parentSize !== context.size ? 'sizing reset-' + context.parentSize + ' ' + context.size : '');
+      return result;
+    }
+    /**
+      *  \left....\right
+      *
+      * Note that we can encounter malformed \left...\right, for example
+      * a \left without a matching \right or vice versa. In that case, the
+      * leftDelim (resp. rightDelim) will be undefined. We still need to handle
+      * those cases.
+      *
+     * @method MathAtom#decomposeLeftright
+      */
+
+  }, {
+    key: "decomposeLeftright",
+    value: function decomposeLeftright(context) {
+      if (!this.body) {
+        // No body, only a delimiter
+        if (this.leftDelim) {
+          return new MathAtom('math', 'mopen', this.leftDelim).decompose(context);
+        }
+
+        if (this.rightDelim) {
+          return new MathAtom('math', 'mclose', this.rightDelim).decompose(context);
+        }
+
+        return null;
+      } // The scope of the context is this group, so make a copy of it
+      // so that any changes to it will be discarded when finished
+      // with this group.
+
+
+      var localContext = context.clone();
+
+      var inner = _decompose(localContext, this.body);
+
+      var mathstyle = localContext.mathstyle;
+      var innerHeight = 0;
+      var innerDepth = 0;
+      var result = []; // Calculate its height and depth
+      // The size of delimiters is the same, regardless of what mathstyle we are
+      // in. Thus, to correctly calculate the size of delimiter we need around
+      // a group, we scale down the inner size based on the size.
+
+      innerHeight = _span3.default.height(inner) * mathstyle.sizeMultiplier;
+      innerDepth = _span3.default.depth(inner) * mathstyle.sizeMultiplier; // Add the left delimiter to the beginning of the expression
+
+      if (this.leftDelim) {
+        result.push(_delimiters.default.makeLeftRightDelim('mopen', this.leftDelim, innerHeight, innerDepth, localContext));
+        result[result.length - 1].applyStyle(this.getStyle());
+      }
+
+      if (inner) {
+        // Replace the delim (\middle) spans with proper ones now that we know
+        // the height/depth
+        for (var i = 0; i < inner.length; i++) {
+          if (inner[i].delim) {
+            var savedCaret = inner[i].caret;
+            var savedSelected = /ML__selected/.test(inner[i].classes);
+            inner[i] = _delimiters.default.makeLeftRightDelim('minner', inner[i].delim, innerHeight, innerDepth, localContext);
+            inner[i].caret = savedCaret;
+            inner[i].selected(savedSelected);
+          }
+        }
+
+        result = result.concat(inner);
+      } // Add the right delimiter to the end of the expression.
+
+
+      if (this.rightDelim) {
+        var delim = this.rightDelim;
+        var classes;
+
+        if (delim === '?') {
+          // Use a placeholder delimiter matching the open delimiter
+          delim = {
+            '(': ')',
+            '\\{': '\\}',
+            '\\[': '\\]',
+            '\\lbrace': '\\rbrace',
+            '\\langle': '\\rangle',
+            '\\lfloor': '\\rfloor',
+            '\\lceil': '\\rceil',
+            '\\vert': '\\vert',
+            '\\lvert': '\\rvert',
+            '\\Vert': '\\Vert',
+            '\\lVert': '\\rVert',
+            '\\lbrack': '\\rbrack',
+            "\\ulcorner": "\\urcorner",
+            '\\llcorner': '\\lrcorner',
+            '\\lgroup': '\\rgroup',
+            '\\lmoustache': '\\rmoustache'
+          }[this.leftDelim];
+          delim = delim || this.leftDelim;
+          classes = 'ML__smart-fence__close';
+        }
+
+        result.push(_delimiters.default.makeLeftRightDelim('mclose', delim, innerHeight, innerDepth, localContext, classes));
+        result[result.length - 1].applyStyle(this.getStyle());
+      } // If the `inner` flag is set, return the `inner` element (that's the
+      // behavior for the regular `\left...\right`
+
+
+      if (this.inner) return makeInner(result, mathstyle.cls()); // Otherwise, include a `\mathopen{}...\mathclose{}`. That's the
+      // behavior for `\mleft...\mright`, which allows for tighter spacing
+      // for example in `\sin\mleft(x\mright)`
+
+      return result;
+    }
+  }, {
+    key: "decomposeSurd",
+    value: function decomposeSurd(context) {
+      // See the TeXbook pg. 443, Rule 11.
+      // http://www.ctex.org/documents/shredder/src/texbook.pdf
+      var mathstyle = context.mathstyle; // First, we do the same steps as in overline to build the inner group
+      // and line
+
+      var inner = _decompose(context.cramp(), this.body);
+
+      var ruleWidth = _fontMetrics.METRICS.defaultRuleThickness / mathstyle.sizeMultiplier;
+      var phi = ruleWidth;
+
+      if (mathstyle.id < _mathstyle.default.TEXT.id) {
+        phi = mathstyle.metrics.xHeight;
+      } // Calculate the clearance between the body and line
+
+
+      var lineClearance = ruleWidth + phi / 4;
+      var innerTotalHeight = Math.max(2 * phi, (_span3.default.height(inner) + _span3.default.depth(inner)) * mathstyle.sizeMultiplier);
+      var minDelimiterHeight = innerTotalHeight + (lineClearance + ruleWidth); // Create a \surd delimiter of the required minimum size
+
+      var delim = makeSpan(_delimiters.default.makeCustomSizedDelim('', '\\surd', minDelimiterHeight, false, context), 'sqrt-sign');
+      delim.applyStyle(this.getStyle());
+      var delimDepth = delim.height + delim.depth - ruleWidth; // Adjust the clearance based on the delimiter size
+
+      if (delimDepth > _span3.default.height(inner) + _span3.default.depth(inner) + lineClearance) {
+        lineClearance = (lineClearance + delimDepth - (_span3.default.height(inner) + _span3.default.depth(inner))) / 2;
+      } // Shift the delimiter so that its top lines up with the top of the line
+
+
+      delim.setTop(delim.height - _span3.default.height(inner) - (lineClearance + ruleWidth));
+      var line = makeSpan(null, context.mathstyle.adjustTo(_mathstyle.default.TEXT) + ' sqrt-line');
+      line.applyStyle(this.getStyle());
+      line.height = ruleWidth;
+      var body = makeVlist(context, [inner, lineClearance, line, ruleWidth]);
+
+      if (!this.index) {
+        return makeOrd([delim, body], 'sqrt');
+      } // Handle the optional root index
+      // The index is always in scriptscript style
+
+
+      var newcontext = context.clone({
+        mathstyle: _mathstyle.default.SCRIPTSCRIPT
+      });
+      var root = makeSpan(_decompose(newcontext, this.index), mathstyle.adjustTo(_mathstyle.default.SCRIPTSCRIPT)); // Figure out the height and depth of the inner part
+
+      var innerRootHeight = Math.max(delim.height, body.height);
+      var innerRootDepth = Math.max(delim.depth, body.depth); // The amount the index is shifted by. This is taken from the TeX
+      // source, in the definition of `\r@@t`.
+
+      var toShift = 0.6 * (innerRootHeight - innerRootDepth); // Build a VList with the superscript shifted up correctly
+
+      var rootVlist = makeVlist(context, [root], 'shift', -toShift); // Add a class surrounding it so we can add on the appropriate
+      // kerning
+
+      return makeOrd([makeSpan(rootVlist, 'root'), delim, body], 'sqrt');
+    }
+  }, {
+    key: "decomposeAccent",
+    value: function decomposeAccent(context) {
+      // Accents are handled in the TeXbook pg. 443, rule 12.
+      var mathstyle = context.mathstyle; // Build the base atom
+
+      var base = _decompose(context.cramp(), this.body);
+
+      if (this.superscript || this.subscript) {
+        // If there is a supsub attached to the accent
+        // apply it to the base.
+        // Note this does not give the same result as TeX when there
+        // are stacked accents, e.g. \vec{\breve{\hat{\acute{...}}}}^2
+        base = this.attachSupsub(context, makeOrd(base), 'mord');
+      } // Calculate the skew of the accent. This is based on the line "If the
+      // nucleus is not a single character, let s = 0; otherwise set s to the
+      // kern amount for the nucleus followed by the \skewchar of its font."
+      // Note that our skew metrics are just the kern between each character
+      // and the skewchar.
+
+
+      var skew = 0;
+
+      if (Array.isArray(this.body) && this.body.length === 1 && this.body[0].isCharacterBox()) {
+        skew = _span3.default.skew(base);
+      } // calculate the amount of space between the body and the accent
+
+
+      var clearance = Math.min(_span3.default.height(base), mathstyle.metrics.xHeight); // Build the accent
+
+      var accent = _span3.default.makeSymbol('Main-Regular', this.accent, 'math'); // Remove the italic correction of the accent, because it only serves to
+      // shift the accent over to a place we don't want.
+
+
+      accent.italic = 0; // The \vec character that the fonts use is a combining character, and
+      // thus shows up much too far to the left. To account for this, we add a
+      // specific class which shifts the accent over to where we want it.
+
+      var vecClass = this.accent === "\u20D7" ? ' accent-vec' : '';
+      var accentBody = makeSpan(makeSpan(accent), 'accent-body' + vecClass);
+      accentBody = makeVlist(context, [base, -clearance, accentBody]); // Shift the accent over by the skew. Note we shift by twice the skew
+      // because we are centering the accent, so by adding 2*skew to the left,
+      // we shift it to the right by 1*skew.
+
+      accentBody.children[1].setLeft(2 * skew);
+      return makeOrd(accentBody, 'accent');
+    }
+    /**
+     * \overline and \underline
+     *
+     * @method MathAtom#decomposeLine
+     */
+
+  }, {
+    key: "decomposeLine",
+    value: function decomposeLine(context) {
+      var mathstyle = context.mathstyle; // TeXBook:443. Rule 9 and 10
+
+      var inner = _decompose(context.cramp(), this.body);
+
+      var ruleWidth = _fontMetrics.METRICS.defaultRuleThickness / mathstyle.sizeMultiplier;
+      var line = makeSpan(null, context.mathstyle.adjustTo(_mathstyle.default.TEXT) + ' ' + this.position + '-line');
+      line.height = ruleWidth;
+      line.maxFontSize = 1.0;
+      var vlist;
+
+      if (this.position === 'overline') {
+        vlist = makeVlist(context, [inner, 3 * ruleWidth, line, ruleWidth]);
+      } else {
+        var innerSpan = makeSpan(inner);
+        vlist = makeVlist(context, [ruleWidth, line, 3 * ruleWidth, innerSpan], 'top', _span3.default.height(innerSpan));
+      }
+
+      return makeOrd(vlist, this.position);
+    }
+  }, {
+    key: "decomposeOverunder",
+    value: function decomposeOverunder(context) {
+      var base = _decompose(context, this.body);
+
+      var annotationStyle = context.clone({
+        mathstyle: 'scriptstyle'
+      });
+      var above = this.overscript ? makeSpan(_decompose(annotationStyle, this.overscript), context.mathstyle.adjustTo(annotationStyle.mathstyle)) : null;
+      var below = this.underscript ? makeSpan(_decompose(annotationStyle, this.underscript), context.mathstyle.adjustTo(annotationStyle.mathstyle)) : null;
+      return makeStack(context, base, 0, 0, above, below, this.mathtype || 'mrel');
+    }
+  }, {
+    key: "decomposeOverlap",
+    value: function decomposeOverlap(context) {
+      var inner = makeSpan(_decompose(context, this.body), 'inner');
+      return makeOrd([inner, makeSpan(null, 'fix')], this.align === 'left' ? 'llap' : 'rlap');
+    }
+    /**
+     * \rule
+     * @memberof MathAtom
+     * @instance
+     */
+
+  }, {
+    key: "decomposeRule",
+    value: function decomposeRule(context) {
+      var mathstyle = context.mathstyle;
+      var result = makeOrd('', 'rule');
+      var shift = this.shift && !isNaN(this.shift) ? this.shift : 0;
+      shift = shift / mathstyle.sizeMultiplier;
+      var width = this.width / mathstyle.sizeMultiplier;
+      var height = this.height / mathstyle.sizeMultiplier;
+      result.setStyle('border-right-width', width, 'em');
+      result.setStyle('border-top-width', height, 'em');
+      result.setStyle('margin-top', -(height - shift), 'em');
+      result.setStyle('border-color', context.color);
+      result.width = width;
+      result.height = height + shift;
+      result.depth = -shift;
+      return result;
+    }
+  }, {
+    key: "decomposeOp",
+    value: function decomposeOp(context) {
+      // Operators are handled in the TeXbook pg. 443-444, rule 13(a).
+      var mathstyle = context.mathstyle;
+      var large = false;
+
+      if (mathstyle.size === _mathstyle.default.DISPLAY.size && typeof this.body === 'string' && this.body !== '\\smallint') {
+        // Most symbol operators get larger in displaystyle (rule 13)
+        large = true;
+      }
+
+      var base;
+      var baseShift = 0;
+      var slant = 0;
+
+      if (this.symbol) {
+        // If this is a symbol, create the symbol.
+        var fontName = large ? 'Size2-Regular' : 'Size1-Regular';
+        base = _span3.default.makeSymbol(fontName, this.body, 'op-symbol ' + (large ? 'large-op' : 'small-op'));
+        base.type = 'mop'; // Shift the symbol so its center lies on the axis (rule 13). It
+        // appears that our fonts have the centers of the symbols already
+        // almost on the axis, so these numbers are very small. Note we
+        // don't actually apply this here, but instead it is used either in
+        // the vlist creation or separately when there are no limits.
+
+        baseShift = (base.height - base.depth) / 2 - mathstyle.metrics.axisHeight * mathstyle.sizeMultiplier; // The slant of the symbol is just its italic correction.
+
+        slant = base.italic; // Bind the generated span and this atom so the atom can be retrieved
+        // from the span later.
+
+        this.bind(context, base);
+      } else if (Array.isArray(this.body)) {
+        // If this is a list, decompose that list.
+        base = _span3.default.makeOp(_decompose(context, this.body)); // Bind the generated span and this atom so the atom can be retrieved
+        // from the span later.
+
+        this.bind(context, base);
+      } else {
+        // Otherwise, this is a text operator. Build the text from the
+        // operator's name.
+        console.assert(this.type === 'mop');
+        base = this.makeSpan(context, this.body);
+      }
+
+      if (this.superscript || this.subscript) {
+        var limits = this.limits || 'auto';
+
+        if (this.alwaysHandleSupSub || limits === 'limits' || limits === 'auto' && mathstyle.size === _mathstyle.default.DISPLAY.size) {
+          return this.attachLimits(context, base, baseShift, slant);
+        }
+
+        return this.attachSupsub(context, base, 'mop');
+      }
+
+      if (this.symbol) base.setTop(baseShift);
+      return base;
+    }
+  }, {
+    key: "decomposeBox",
+    value: function decomposeBox(context) {
+      // Base is the main content "inside" the box
+      var base = makeOrd(_decompose(context, this.body)); // This span will represent the box (background and border)
+      // It's positioned to overlap the base
+
+      var box = makeSpan();
+      box.setStyle('position', 'absolute'); // The padding extends outside of the base
+
+      var padding = typeof this.padding === 'number' ? this.padding : _fontMetrics.METRICS.fboxsep;
+      box.setStyle('height', base.height + base.depth + 2 * padding, 'em');
+
+      if (padding !== 0) {
+        box.setStyle('width', 'calc(100% + ' + 2 * padding + 'em)');
+      } else {
+        box.setStyle('width', '100%');
+      }
+
+      box.setStyle('top', -padding, 'em');
+      box.setStyle('left', -padding, 'em');
+      box.setStyle('z-index', '-1'); // Ensure the box is *behind* the base
+
+      if (this.backgroundcolor) box.setStyle('background-color', this.backgroundcolor);
+      if (this.framecolor) box.setStyle('border', _fontMetrics.METRICS.fboxrule + 'em solid ' + this.framecolor);
+      if (this.border) box.setStyle('border', this.border);
+      base.setStyle('display', 'inline-block');
+      base.setStyle('height', base.height + base.depth, 'em');
+      base.setStyle('vertical-align', -base.depth + padding, 'em'); // The result is a span that encloses the box and the base
+
+      var result = makeSpan([box, base]); // Set its position as relative so that the box can be absolute positioned
+      // over the base
+
+      result.setStyle('position', 'relative');
+      result.setStyle('vertical-align', -padding + base.depth, 'em'); // The padding adds to the width and height of the pod
+
+      result.height = base.height + padding;
+      result.depth = base.depth + padding;
+      result.setLeft(padding);
+      result.setRight(padding);
+      return result;
+    }
+  }, {
+    key: "decomposeEnclose",
+    value: function decomposeEnclose(context) {
+      var base = makeOrd(_decompose(context, this.body));
+      var result = base; // Account for the padding
+
+      var padding = this.padding === 'auto' ? .2 : this.padding; // em
+
+      result.setStyle('padding', padding, 'em');
+      result.setStyle('display', 'inline-block');
+      result.setStyle('height', result.height + result.depth, 'em');
+      result.setStyle('left', -padding, 'em');
+
+      if (this.backgroundcolor && this.backgroundcolor !== 'transparent') {
+        result.setStyle('background-color', this.backgroundcolor);
+      }
+
+      var svg = '';
+      if (this.notation.box) result.setStyle('border', this.borderStyle);
+
+      if (this.notation.actuarial) {
+        result.setStyle('border-top', this.borderStyle);
+        result.setStyle('border-right', this.borderStyle);
+      }
+
+      if (this.notation.madruwb) {
+        result.setStyle('border-bottom', this.borderStyle);
+        result.setStyle('border-right', this.borderStyle);
+      }
+
+      if (this.notation.roundedbox) {
+        result.setStyle('border-radius', (_span3.default.height(result) + _span3.default.depth(result)) / 2, 'em');
+        result.setStyle('border', this.borderStyle);
+      }
+
+      if (this.notation.circle) {
+        result.setStyle('border-radius', '50%');
+        result.setStyle('border', this.borderStyle);
+      }
+
+      if (this.notation.top) result.setStyle('border-top', this.borderStyle);
+      if (this.notation.left) result.setStyle('border-left', this.borderStyle);
+      if (this.notation.right) result.setStyle('border-right', this.borderStyle);
+      if (this.notation.bottom) result.setStyle('border-bottom', this.borderStyle);
+
+      if (this.notation.horizontalstrike) {
+        svg += '<line x1="3%"  y1="50%" x2="97%" y2="50%"';
+        svg += " stroke-width=\"".concat(this.strokeWidth, "\" stroke=\"").concat(this.strokeColor, "\"");
+        svg += ' stroke-linecap="round"';
+
+        if (this.svgStrokeStyle) {
+          svg += " stroke-dasharray=\"".concat(this.svgStrokeStyle, "\"");
+        }
+
+        svg += '/>';
+      }
+
+      if (this.notation.verticalstrike) {
+        svg += '<line x1="50%"  y1="3%" x2="50%" y2="97%"';
+        svg += " stroke-width=\"".concat(this.strokeWidth, "\" stroke=\"").concat(this.strokeColor, "\"");
+        svg += ' stroke-linecap="round"';
+
+        if (this.svgStrokeStyle) {
+          svg += " stroke-dasharray=\"".concat(this.svgStrokeStyle, "\"");
+        }
+
+        svg += '/>';
+      }
+
+      if (this.notation.updiagonalstrike) {
+        svg += '<line x1="3%"  y1="97%" x2="97%" y2="3%"';
+        svg += " stroke-width=\"".concat(this.strokeWidth, "\" stroke=\"").concat(this.strokeColor, "\"");
+        svg += ' stroke-linecap="round"';
+
+        if (this.svgStrokeStyle) {
+          svg += " stroke-dasharray=\"".concat(this.svgStrokeStyle, "\"");
+        }
+
+        svg += '/>';
+      }
+
+      if (this.notation.downdiagonalstrike) {
+        svg += '<line x1="3%"  y1="3%" x2="97%" y2="97%"';
+        svg += " stroke-width=\"".concat(this.strokeWidth, "\" stroke=\"").concat(this.strokeColor, "\"");
+        svg += ' stroke-linecap="round"';
+
+        if (this.svgStrokeStyle) {
+          svg += " stroke-dasharray=\"".concat(this.svgStrokeStyle, "\"");
+        }
+
+        svg += '/>';
+      } // if (this.notation.updiagonalarrow) {
+      //     const t = 1;
+      //     const length = Math.sqrt(w * w + h * h);
+      //     const f = 1 / length / 0.075 * t;
+      //     const wf = w * f;
+      //     const hf = h * f;
+      //     const x = w - t / 2;
+      //     let y = t / 2;
+      //     if (y + hf - .4 * wf < 0 ) y = 0.4 * wf - hf;
+      //     svg += '<line ';
+      //     svg += `x1="1" y1="${h - 1}px" x2="${x - .7 * wf}px" y2="${y + .7 * hf}px"`;
+      //     svg += ` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`;
+      //     svg += ' stroke-linecap="round"';
+      //     if (this.svgStrokeStyle) {
+      //         svg += ` stroke-dasharray="${this.svgStrokeStyle}"`;
+      //     }
+      //     svg += '/>';
+      //     svg += '<polygon points="';
+      //     svg += `${x},${y} ${x - wf - .4 * hf},${y + hf - .4 * wf} `;
+      //     svg += `${x - .7 * wf},${y + .7 * hf} ${x - wf + .4 * hf},${y + hf + .4 * wf} `;
+      //     svg += `${x},${y}`;
+      //     svg += `" stroke='none' fill="${this.strokeColor}"`;
+      //     svg += '/>';
+      // }
+      // if (this.notation.phasorangle) {
+      //     svg += '<path d="';
+      //     svg += `M ${h / 2},1 L1,${h} L${w},${h} "`;
+      //     svg += ` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}" fill="none"`;
+      //     if (this.svgStrokeStyle) {
+      //         svg += ' stroke-linecap="round"';
+      //         svg += ` stroke-dasharray="${this.svgStrokeStyle}"`;
+      //     }
+      //     svg += '/>';
+      // }
+      // if (this.notation.radical) {
+      //     svg += '<path d="';
+      //     svg += `M 0,${.6 * h} L1,${h} L${emToPx(padding) * 2},1 "`;
+      //     svg += ` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}" fill="none"`;
+      //     if (this.svgStrokeStyle) {
+      //         svg += ' stroke-linecap="round"';
+      //         svg += ` stroke-dasharray="${this.svgStrokeStyle}"`;
+      //     }
+      //     svg += '/>';
+      // }
+      // if (this.notation.longdiv) {
+      //     svg += '<path d="';
+      //     svg += `M ${w} 1 L1 1 a${emToPx(padding)} ${h / 2}, 0, 0, 1, 1 ${h} "`;
+      //     svg += ` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}" fill="none"`;
+      //     if (this.svgStrokeStyle) {
+      //         svg += ' stroke-linecap="round"';
+      //         svg += ` stroke-dasharray="${this.svgStrokeStyle}"`;
+      //     }
+      //     svg += '/>';
+      // }
+
+
+      if (svg) {
+        var svgStyle;
+
+        if (this.shadow !== 'none') {
+          if (this.shadow === 'auto') {
+            svgStyle = 'filter: drop-shadow(0 0 .5px rgba(255, 255, 255, .7)) drop-shadow(1px 1px 2px #333)';
+          } else {
+            svgStyle = 'filter: drop-shadow(' + this.shadow + ')';
+          }
+        }
+
+        return _span3.default.makeSVG(result, svg, svgStyle);
+      }
+
+      return result;
+    }
+    /**
+     * Return a representation of this, but decomposed in an array of Spans
+     *
+     * @param {Context} context Font variant, size, color, etc...
+     * @param {Span[]} [phantomBase=null] If not null, the spans to use to
+     * calculate the placement of the supsub
+     * @return {Span[]}
+     * @method MathAtom#decompose
+     */
+
+  }, {
+    key: "decompose",
+    value: function decompose(context, phantomBase) {
+      console.assert(context instanceof _context.default.Context);
+      var result = null;
+
+      if (!this.type || /mord|minner|mbin|mrel|mpunct|mopen|mclose|textord/.test(this.type)) {
+        // The body of these atom types is *often* a string, but it can
+        // be a atom list (for example a command inside a \text{})
+        if (typeof this.body === 'string') {
+          result = this.makeSpan(context, this.body);
+        } else {
+          result = this.makeSpan(context, _decompose(context, this.body));
+        }
+
+        result.type = this.type;
+      } else if (this.type === 'group' || this.type === 'root') {
+        result = this.decomposeGroup(context);
+      } else if (this.type === 'array') {
+        result = this.decomposeArray(context);
+      } else if (this.type === 'genfrac') {
+        result = this.decomposeGenfrac(context);
+      } else if (this.type === 'surd') {
+        result = this.decomposeSurd(context);
+      } else if (this.type === 'accent') {
+        result = this.decomposeAccent(context);
+      } else if (this.type === 'leftright') {
+        result = this.decomposeLeftright(context);
+      } else if (this.type === 'delim') {
+        result = makeSpan(null, '');
+        result.delim = this.delim;
+      } else if (this.type === 'sizeddelim') {
+        result = this.bind(context, _delimiters.default.makeSizedDelim(this.cls, this.delim, this.size, context));
+      } else if (this.type === 'line') {
+        result = this.decomposeLine(context);
+      } else if (this.type === 'overunder') {
+        result = this.decomposeOverunder(context);
+      } else if (this.type === 'overlap') {
+        // For llap (18), rlap (270), clap (0)
+        // smash (common), mathllap (0), mathrlap (0), mathclap (0)
+        // See https://www.tug.org/TUGboat/tb22-4/tb72perlS.pdf
+        // and https://tex.stackexchange.com/questions/98785/what-are-the-different-kinds-of-vertical-spacing-and-horizontal-spacing-commands
+        result = this.decomposeOverlap(context);
+      } else if (this.type === 'rule') {
+        result = this.decomposeRule(context);
+      } else if (this.type === 'styling') {//
+        // STYLING
+        //
+      } else if (this.type === 'msubsup') {
+        // The caret for this atom type is handled by its elements
+        result = makeOrd("\u200B");
+
+        if (phantomBase) {
+          result.height = phantomBase[0].height;
+          result.depth = phantomBase[0].depth;
+        }
+      } else if (this.type === 'mop') {
+        result = this.decomposeOp(context);
+      } else if (this.type === 'space') {
+        // A space literal
+        result = this.makeSpan(context, ' ');
+      } else if (this.type === 'spacing') {
+        // A spacing command (\quad, etc...)
+        if (this.body === "\u200B") {
+          // ZERO-WIDTH SPACE
+          result = this.makeSpan(context, "\u200B");
+        } else if (this.body === "\xA0") {
+          if (this.mode === 'math') {
+            result = this.makeSpan(context, ' ');
+          } else {
+            result = this.makeSpan(context, "\xA0");
+          }
+        } else if (this.width) {
+          result = makeSpan("\u200B", 'mspace ');
+
+          if (this.width > 0) {
+            result.setWidth(this.width);
+          } else {
+            result.setStyle('margin-left', this.width, 'em');
+          }
+        } else {
+          var spacingCls = {
+            'qquad': 'qquad',
+            'quad': 'quad',
+            'enspace': 'enspace',
+            ';': 'thickspace',
+            ':': 'mediumspace',
+            ',': 'thinspace',
+            '!': 'negativethinspace'
+          }[this.body] || 'quad';
+          result = makeSpan("\u200B", 'mspace ' + spacingCls);
+        }
+      } else if (this.type === 'mathstyle') {
+        context.setMathstyle(this.mathstyle);
+      } else if (this.type === 'box') {
+        result = this.decomposeBox(context);
+      } else if (this.type === 'enclose') {
+        result = this.decomposeEnclose(context);
+      } else if (this.type === 'command' || this.type === 'error') {
+        result = this.makeSpan(context, this.body);
+        result.classes = ''; // Override fonts and other attributes.
+
+        if (this.error) {
+          result.classes += ' ML__error';
+        }
+
+        if (this.suggestion) {
+          result.classes += ' ML__suggestion';
+        }
+      } else if (this.type === 'placeholder') {
+        result = this.makeSpan(context, '⬚');
+      } else if (this.type === 'first') {
+        // the `first` pseudo-type is used as a placeholder as
+        // the first element in a children list. This makes
+        // managing the list, and the caret selection, easier.
+        // ZERO-WIDTH SPACE
+        result = this.makeSpan(context, "\u200B");
+      } else {
+        //
+        // DEFAULT
+        //
+        console.assert(false, 'Unknown MathAtom type: "' + this.type + '"');
+      }
+
+      if (!result) return result;
+
+      if (this.caret && this.type !== 'styling' && this.type !== 'msubsup' && this.type !== 'command' && this.type !== 'placeholder' && this.type !== 'first') {
+        if (Array.isArray(result)) {
+          result[result.length - 1].caret = this.caret;
+        } else {
+          result.caret = this.caret;
+        }
+      } // Finally, attach any necessary superscript, subscripts
+
+
+      if (!this.limits && (this.superscript || this.subscript)) {
+        // If limits is set, the attachment of sup/sub was handled
+        // in the atom decomposition (e.g. decomposeOp, decomposeAccent)
+        if (Array.isArray(result)) {
+          var lastSpan = result[result.length - 1];
+          result[result.length - 1] = this.attachSupsub(context, lastSpan, lastSpan.type);
+        } else {
+          result = [this.attachSupsub(context, result, result.type)];
+        }
+      }
+
+      return Array.isArray(result) ? result : [result];
+    }
+  }, {
+    key: "attachSupsub",
+    value: function attachSupsub(context, nucleus, type) {
+      // If no superscript or subscript, nothing to do.
+      if (!this.superscript && !this.subscript) return nucleus; // Superscript and subscripts are discussed in the TeXbook
+      // on page 445-446, rules 18(a-f).
+      // TeX:14859-14945
+
+      var mathstyle = context.mathstyle;
+      var supmid = null;
+      var submid = null;
+
+      if (this.superscript) {
+        var sup = _decompose(context.sup(), this.superscript);
+
+        supmid = makeSpan(sup, mathstyle.adjustTo(mathstyle.sup()));
+      }
+
+      if (this.subscript) {
+        var sub = _decompose(context.sub(), this.subscript);
+
+        submid = makeSpan(sub, mathstyle.adjustTo(mathstyle.sub()));
+      } // Rule 18a
+
+
+      var supShift = 0;
+      var subShift = 0;
+
+      if (!this.isCharacterBox()) {
+        supShift = _span3.default.height(nucleus) - mathstyle.metrics.supDrop;
+        subShift = _span3.default.depth(nucleus) + mathstyle.metrics.subDrop;
+      } // Rule 18c
+
+
+      var minSupShift;
+
+      if (mathstyle === _mathstyle.default.DISPLAY) {
+        minSupShift = mathstyle.metrics.sup1;
+      } else if (mathstyle.cramped) {
+        minSupShift = mathstyle.metrics.sup3;
+      } else {
+        minSupShift = mathstyle.metrics.sup2;
+      } // scriptspace is a font-size-independent size, so scale it
+      // appropriately
+
+
+      var multiplier = _mathstyle.default.TEXT.sizeMultiplier * mathstyle.sizeMultiplier;
+      var scriptspace = 0.5 / _fontMetrics.METRICS.ptPerEm / multiplier;
+      var supsub = null;
+
+      if (submid && supmid) {
+        // Rule 18e
+        supShift = Math.max(supShift, minSupShift, supmid.depth + 0.25 * mathstyle.metrics.xHeight);
+        subShift = Math.max(subShift, mathstyle.metrics.sub2);
+        var ruleWidth = _fontMetrics.METRICS.defaultRuleThickness;
+
+        if (supShift - _span3.default.depth(supmid) - (_span3.default.height(submid) - subShift) < 4 * ruleWidth) {
+          subShift = 4 * ruleWidth - (supShift - supmid.depth) + _span3.default.height(submid);
+
+          var psi = 0.8 * mathstyle.metrics.xHeight - (supShift - _span3.default.depth(supmid));
+
+          if (psi > 0) {
+            supShift += psi;
+            subShift -= psi;
+          }
+        }
+
+        supsub = makeVlist(context, [submid, subShift, supmid, -supShift], 'individualShift'); // Subscripts shouldn't be shifted by the nucleus' italic correction.
+        // Account for that by shifting the subscript back the appropriate
+        // amount. Note we only do this when the nucleus is a single symbol.
+
+        if (this.symbol) {
+          supsub.children[0].setLeft(-_span3.default.italic(nucleus));
+        }
+      } else if (submid && !supmid) {
+        // Rule 18b
+        subShift = Math.max(subShift, mathstyle.metrics.sub1, _span3.default.height(submid) - 0.8 * mathstyle.metrics.xHeight);
+        supsub = makeVlist(context, [submid], 'shift', subShift);
+        supsub.children[0].setRight(scriptspace);
+
+        if (this.isCharacterBox()) {
+          supsub.children[0].setLeft(-_span3.default.italic(nucleus));
+        }
+      } else if (!submid && supmid) {
+        // Rule 18c, d
+        supShift = Math.max(supShift, minSupShift, supmid.depth + 0.25 * mathstyle.metrics.xHeight);
+        supsub = makeVlist(context, [supmid], 'shift', -supShift);
+        supsub.children[0].setRight(scriptspace);
+      } // Display the caret *following* the superscript and subscript,
+      // so attach the caret to the 'msubsup' element.
+
+
+      var supsubContainer = makeSpan(supsub, 'msubsup');
+
+      if (this.caret) {
+        supsubContainer.caret = this.caret;
+      }
+
+      return _span3.default.makeSpanOfType(type, [nucleus, supsubContainer]);
+    }
+  }, {
+    key: "attachLimits",
+    value: function attachLimits(context, nucleus, nucleusShift, slant) {
+      var limitAbove = this.superscript ? makeSpan(_decompose(context.sup(), this.superscript), context.mathstyle.adjustTo(context.mathstyle.sup())) : null;
+      var limitBelow = this.subscript ? makeSpan(_decompose(context.sub(), this.subscript), context.mathstyle.adjustTo(context.mathstyle.sub())) : null;
+      return makeStack(context, nucleus, nucleusShift, slant, limitAbove, limitBelow, 'mop');
+    }
+    /**
+     * Add an ID attribute to both the span and this atom so that the atom
+     * can be retrieved from the span later on (e.g. when the span is clicked on)
+     * @param {Context} context
+     * @param {Span} span
+     * @method MathAtom#bind
+     */
+
+  }, {
+    key: "bind",
+    value: function bind(context, span) {
+      if (this.type !== 'first' && this.body !== "\u200B") {
+        this.id = makeID(context);
+
+        if (this.id) {
+          if (!span.attributes) span.attributes = {};
+          span.attributes['data-atom-id'] = this.id;
+        }
+      }
+
+      return span;
+    }
+    /**
+     * Create a span with the specified body and with a class attribute
+     * equal to the type ('mbin', 'inner', 'spacing', etc...)
+     *
+     * @param {Context} context
+     * @param {(string|Span[])} body
+     * @return {Span}
+     * @method MathAtom#makeSpan
+     */
+
+  }, {
+    key: "makeSpan",
+    value: function makeSpan(context, body) {
+      var type = this.type === 'textord' ? 'mord' : this.type;
+
+      var result = _span3.default.makeSpanOfType(type, body); // The font family is determined by:
+      // - the base font family associated with this atom (optional). For example,
+      // some atoms such as some functions ('\sin', '\cos', etc...) or some
+      // symbols ('\Z') have an explicit font family. This overrides any 
+      // other font family
+      // - the user-specified font family that has been explicitly applied to 
+      // this atom
+      // - the font family automatically determined in math mode, for example
+      // which italicizes some characters, but which can be overridden
+
+
+      var style = this.getStyle();
+      result.applyStyle(style); // Apply size correction
+
+      var size = style && style.fontSize ? style.fontSize : 'size5';
+
+      if (size !== context.parentSize) {
+        result.classes += ' sizing reset-' + context.parentSize;
+        result.classes += ' ' + size;
+      } else if (context.parentSize !== context.size) {
+        result.classes += ' sizing reset-' + context.parentSize;
+        result.classes += ' ' + context.size;
+      }
+
+      result.maxFontSize = Math.max(result.maxFontSize, context.sizeMultiplier || 1.0); // Set other attributes
+
+      if (this.mode === 'text') result.classes += ' ML__text';
+      if (context.mathstyle.isTight()) result.isTight = true; // The italic correction applies only in math mode
+
+      if (this.mode !== 'math') result.italic = 0;
+      result.setRight(result.italic); // Italic correction
+
+      if (typeof context.opacity === 'number') result.setStyle('opacity', context.opacity); // To retrieve the atom from a span, for example when the span is clicked
+      // on, attach a randomly generated ID to the span and associate it
+      // with the atom.
+
+      this.bind(context, result);
+
+      if (this.caret) {
+        // If this has a super/subscript, the caret will be attached
+        // to the 'msubsup' atom, so no need to have it here.
+        if (!this.superscript && !this.subscript) {
+          result.caret = this.caret;
+          if (context.mathstyle.isTight()) result.isTight = true;
+        }
+      }
+
+      return result;
+    }
+  }]);
+
+  return MathAtom;
+}();
+/**
+ * Used in `decomposeArray` to create a column separator span.
+ *
+ * @param {number} width
+ * @memberof module:mathAtom
+ * @private
+ */
+
+
+function makeColGap(width) {
+  var separator = makeSpan("\u200B", 'arraycolsep');
+  separator.setWidth(width, 'em');
+  return separator;
+}
+/**
+ * Used in decomposeArray to create a column of repeating elements.
+ * @memberof module:mathAtom
+ * @private
+ */
+
+
+function makeColOfRepeatingElements(context, body, offset, elem) {
+  var col = [];
+  var _iteratorNormalCompletion18 = true;
+  var _didIteratorError18 = false;
+  var _iteratorError18 = undefined;
+
+  try {
+    for (var _iterator18 = body[Symbol.iterator](), _step18; !(_iteratorNormalCompletion18 = (_step18 = _iterator18.next()).done); _iteratorNormalCompletion18 = true) {
+      var row = _step18.value;
+      var cell = makeSpan(_decompose(context, elem));
+      cell.depth = row.depth;
+      cell.height = row.height;
+      col.push(cell);
+      col.push(row.pos - offset);
+    }
+  } catch (err) {
+    _didIteratorError18 = true;
+    _iteratorError18 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion18 && _iterator18.return != null) {
+        _iterator18.return();
+      }
+    } finally {
+      if (_didIteratorError18) {
+        throw _iteratorError18;
+      }
+    }
+  }
+
+  return makeVlist(context, col, 'individualShift');
+}
+
+function makeID(context) {
+  var result;
+
+  if (typeof context.generateID === 'boolean' && context.generateID) {
+    result = Date.now().toString(36).slice(-2) + Math.floor(Math.random() * 0x186a0).toString(36);
+  } else if (typeof context.generateID !== 'boolean') {
+    if (context.generateID.overrideID) {
+      result = context.generateID.overrideID;
+    } else {
+      result = context.generateID.seed.toString(36);
+      context.generateID.seed += 1;
+    }
+  }
+
+  return result;
+} ////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * Combine a nucleus with an atom above and an atom below. Used to form
+ * limits and used by \stackrel.
+ *
+ * @param {Context} context
+ * @param {Span} nucleus The base over and under which the atoms will
+ * be placed.
+ * @param {number} nucleusShift The vertical shift of the nucleus from 
+ * the baseline.
+ * @param {number} slant For operators that have a slant, such as \int, 
+ * indicate by how much to horizontally offset the above and below atoms
+ * @param {Span} above
+ * @param {Span} below
+ * @param {string} type The type ('mop', 'mrel', etc...) of the result
+ * @return {Span}
+ * @memberof module:mathAtom
+ * @private
+ */
+
+
+function makeStack(context, nucleus, nucleusShift, slant, above, below, type) {
+  // If nothing above and nothing below, nothing to do.
+  if (!above && !below) return nucleus; // IE 8 clips \int if it is in a display: inline-block. We wrap it
+  // in a new span so it is an inline, and works.
+  // @todo: revisit
+
+  nucleus = makeSpan(nucleus);
+  var aboveShift = 0;
+  var belowShift = 0;
+
+  if (above) {
+    aboveShift = Math.max(_fontMetrics.METRICS.bigOpSpacing1, _fontMetrics.METRICS.bigOpSpacing3 - above.depth);
+  }
+
+  if (below) {
+    belowShift = Math.max(_fontMetrics.METRICS.bigOpSpacing2, _fontMetrics.METRICS.bigOpSpacing4 - below.height);
+  }
+
+  var result = null;
+
+  if (below && above) {
+    var bottom = _fontMetrics.METRICS.bigOpSpacing5 + _span3.default.height(below) + _span3.default.depth(below) + belowShift + _span3.default.depth(nucleus) + nucleusShift;
+    result = makeVlist(context, [_fontMetrics.METRICS.bigOpSpacing5, below, belowShift, nucleus, aboveShift, above, _fontMetrics.METRICS.bigOpSpacing5], 'bottom', bottom); // Here, we shift the limits by the slant of the symbol. Note
+    // that we are supposed to shift the limits by 1/2 of the slant,
+    // but since we are centering the limits adding a full slant of
+    // margin will shift by 1/2 that.
+
+    result.children[0].setLeft(-slant);
+    result.children[2].setLeft(slant);
+  } else if (below && !above) {
+    var top = _span3.default.height(nucleus) - nucleusShift;
+    result = makeVlist(context, [_fontMetrics.METRICS.bigOpSpacing5, below, belowShift, nucleus], 'top', top); // See comment above about slants
+
+    result.children[0].setLeft(-slant);
+  } else if (!below && above) {
+    var _bottom = _span3.default.depth(nucleus) + nucleusShift;
+
+    result = makeVlist(context, [nucleus, aboveShift, above, _fontMetrics.METRICS.bigOpSpacing5], 'bottom', _bottom); // See comment above about slants
+
+    result.children[1].setLeft(slant);
+  }
+
+  return _span3.default.makeSpanOfType(type, result, 'op-limits');
+}
+/**
+ * Return a list of spans equivalent to atoms.
+ * A span is the most elementary type possible, for example 'text'
+ * or 'vlist', while the input atoms may be more abstract and complex,
+ * such as 'genfrac'
+ *
+ * @param {Context} context Font family, variant, size, color, etc...
+ * @param {(MathAtom|MathAtom[])} atoms
+ * @return {Span[]}
+ * @memberof module:core/mathatom
+ * @private
+ */
+
+
+function _decompose(context, atoms) {
+  if (!(context instanceof _context.default.Context)) {
+    // We can be passed either a Context object, or 
+    // a simple object with some properties set.
+    context = new _context.default.Context(context);
+  } // In most cases we want to display selection,
+  // except if the generateID.groupNumbers flag is set which is used for
+  // read aloud.
+
+
+  var displaySelection = !context.generateID || !context.generateID.groupNumbers;
+  var result = [];
+
+  if (Array.isArray(atoms)) {
+    if (atoms.length === 0) {
+      return result;
+    } else if (atoms.length === 1) {
+      result = atoms[0].decompose(context);
+
+      if (result && displaySelection && atoms[0].isSelected) {
+        result.forEach(function (x) {
+          return x.selected(true);
+        });
+      }
+
+      console.assert(!result || Array.isArray(result));
+    } else {
+      var previousType = 'none';
+      var nextType = atoms[1].type;
+      var selection = [];
+      var digitStringID = null;
+      var phantomBase = null;
+
+      for (var i = 0; i < atoms.length; i++) {
+        // Is this a binary operator ('+', '-', etc...) that potentially
+        // needs to be adjusted to a unary operator?
+        // 
+        // When preceded by a mbin, mopen, mrel, mpunct, mop or
+        // when followed by a mrel, mclose or mpunct
+        // or if preceded or followed by no sibling, a 'mbin' becomes a
+        // 'mord'
+        if (atoms[i].type === 'mbin') {
+          if (/first|none|mrel|mpunct|mopen|mbin|mop/.test(previousType) || /none|mrel|mpunct|mclose/.test(nextType)) {
+            atoms[i].type = 'mord';
+          }
+        } // If this is a scaffolding supsub, we'll use the
+        // phantomBase from the previous atom to position the supsub.
+        // Otherwise, no need for the phantomBase
+
+
+        if (atoms[i].body !== "\u200B" || !atoms[i].superscript && !atoms[i].subscript) {
+          phantomBase = null;
+        }
+
+        if (context.generateID.groupNumbers && digitStringID && atoms[i].type === 'mord' && /[0-9,.]/.test(atoms[i].latex)) {
+          context.generateID.overrideID = digitStringID;
+        }
+
+        var span = atoms[i].decompose(context, phantomBase);
+
+        if (context.generateID) {
+          context.generateID.overrideID = null;
+        }
+
+        if (span) {
+          // The result from decompose is always an array
+          // Flatten it (i.e. [[a1, a2], b1, b2] -> [a1, a2, b1, b2]
+          var flat = [].concat.apply([], span);
+          phantomBase = flat; // If this is a digit, keep track of it
+
+          if (context.generateID && context.generateID.groupNumbers) {
+            if (atoms[i].type === 'mord' && /[0-9,.]/.test(atoms[i].latex)) {
+              if (!digitStringID) {
+                digitStringID = atoms[i].id;
+              }
+            }
+
+            if ((atoms[i].type !== 'mord' || /[0-9,.]/.test(atoms[i].latex) || atoms[i].superscript || atoms[i].subscript) && digitStringID) {
+              // Done with digits
+              digitStringID = null;
+            }
+          }
+
+          if (displaySelection && atoms[i].isSelected) {
+            selection = selection.concat(flat);
+            selection.forEach(function (x) {
+              return x.selected(true);
+            });
+          } else {
+            if (selection.length > 0) {
+              // There was a selection, but we're out of it now
+              // Append the selection
+              result = [].concat(_toConsumableArray(result), _toConsumableArray(selection));
+              selection = [];
+            }
+
+            result = result.concat(flat);
+          }
+        } // Since the next atom (and this atom!) could have children
+        // use getFinal...() and getInitial...() to get the closest
+        // atom linearly.
+
+
+        previousType = atoms[i].getFinalBaseElement().type;
+        nextType = atoms[i + 1] ? atoms[i + 1].getInitialBaseElement().type : 'none';
+      } // Is there a leftover selection?
+
+
+      if (selection.length > 0) {
+        result = [].concat(_toConsumableArray(result), _toConsumableArray(selection));
+        selection = [];
+      }
+    }
+  } else if (atoms) {
+    // This is a single atom, decompose it
+    result = atoms.decompose(context);
+
+    if (result && displaySelection && atoms.isSelected) {
+      result.forEach(function (x) {
+        return x.selected(true);
+      });
+    }
+  }
+
+  if (!result || result.length === 0) return null;
+  console.assert(Array.isArray(result) && result.length > 0); // If the mathstyle changed between the parent and the current atom,
+  // account for the size difference
+
+  if (context.mathstyle !== context.parentMathstyle) {
+    var factor = context.mathstyle.sizeMultiplier / context.parentMathstyle.sizeMultiplier;
+    var _iteratorNormalCompletion19 = true;
+    var _didIteratorError19 = false;
+    var _iteratorError19 = undefined;
+
+    try {
+      for (var _iterator19 = result[Symbol.iterator](), _step19; !(_iteratorNormalCompletion19 = (_step19 = _iterator19.next()).done); _iteratorNormalCompletion19 = true) {
+        var _span = _step19.value;
+        console.assert(!Array.isArray(_span));
+        console.assert(typeof _span.height === 'number' && isFinite(_span.height));
+        _span.height *= factor;
+        _span.depth *= factor;
+      }
+    } catch (err) {
+      _didIteratorError19 = true;
+      _iteratorError19 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion19 && _iterator19.return != null) {
+          _iterator19.return();
+        }
+      } finally {
+        if (_didIteratorError19) {
+          throw _iteratorError19;
+        }
+      }
+    }
+  } // If the size changed between the parent and the current group,
+  // account for the size difference
+
+
+  if (context.size !== context.parentSize) {
+    var _factor = SIZING_MULTIPLIER[context.size] / SIZING_MULTIPLIER[context.parentSize];
+
+    var _iteratorNormalCompletion20 = true;
+    var _didIteratorError20 = false;
+    var _iteratorError20 = undefined;
+
+    try {
+      for (var _iterator20 = result[Symbol.iterator](), _step20; !(_iteratorNormalCompletion20 = (_step20 = _iterator20.next()).done); _iteratorNormalCompletion20 = true) {
+        var _span2 = _step20.value;
+        console.assert(!Array.isArray(_span2));
+        console.assert(typeof _span2.height === 'number' && isFinite(_span2.height));
+        _span2.height *= _factor;
+        _span2.depth *= _factor;
+      }
+    } catch (err) {
+      _didIteratorError20 = true;
+      _iteratorError20 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion20 && _iterator20.return != null) {
+          _iterator20.return();
+        }
+      } finally {
+        if (_didIteratorError20) {
+          throw _iteratorError20;
+        }
+      }
+    }
+  }
+
+  return result;
+}
+/**
+ * Return an atom suitable for use as the root of a formula.
+ *
+ * @param {string} parseMode
+ * @param {MathAtom[]} body
+ * @return {MathAtom[]}
+ * @memberof module:core/mathatom
+ * @private
+ */
+
+
+function makeRoot(parseMode, body) {
+  parseMode = parseMode || 'math';
+  var result = new MathAtom(parseMode, 'root', body || []);
+
+  if (result.body.length === 0 || result.body[0].type !== 'first') {
+    result.body.unshift(new MathAtom('', 'first'));
+  }
+
+  return result;
+} // Export the public interface for this module
+
+
+var _default = {
+  MathAtom: MathAtom,
+  decompose: _decompose,
+  makeRoot: makeRoot,
+  GREEK_REGEX: GREEK_REGEX
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/mathstyle.js b/dist/core/mathstyle.js
new file mode 100755
index 000000000..e6b43bd68
--- /dev/null
+++ b/dist/core/mathstyle.js
@@ -0,0 +1,213 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _fontMetrics = require("./fontMetrics.js");
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var metrics = [{}, {}, {}];
+/* textstyle, scriptstyle, scriptscriptstyle */
+
+var i;
+
+for (var key in _fontMetrics.SIGMAS) {
+  if (_fontMetrics.SIGMAS.hasOwnProperty(key)) {
+    for (i = 0; i < 3; i++) {
+      metrics[i][key] = _fontMetrics.SIGMAS[key][i];
+    }
+  }
+}
+
+for (i = 0; i < 3; i++) {
+  metrics[i].emPerEx = _fontMetrics.SIGMAS.xHeight[i] / _fontMetrics.SIGMAS.quad[i];
+}
+/**
+ * @property {number} id unique id for the style
+ * @property {number} size (which is the same for cramped and uncramped version
+ * of a style)
+ * @property {number}  size multiplier, which gives the size difference between
+ * a style and textstyle.
+ * @property {boolean}  cramped flag
+ * @memberof module:core/mathstyle
+ * @class module:core/mathstyle#Mathstyle
+ * @private
+ */
+
+
+var Mathstyle =
+/*#__PURE__*/
+function () {
+  function Mathstyle(id, size, multiplier, cramped) {
+    _classCallCheck(this, Mathstyle);
+
+    this.id = id;
+    this.size = size;
+    this.cramped = cramped;
+    this.sizeMultiplier = multiplier;
+    this.metrics = metrics[size > 0 ? size - 1 : 0];
+  }
+  /**
+   * Get the style of a superscript given a base in the current style.
+   * @method module:mathstyle.MathStyle#sup
+   * @private
+   */
+
+
+  _createClass(Mathstyle, [{
+    key: "sup",
+    value: function sup() {
+      return styles[_sup[this.id]];
+    }
+    /**
+     * Get the style of a subscript given a base in the current style.
+     * @method module:mathstyle.MathStyle#sub
+     * @private
+     */
+
+  }, {
+    key: "sub",
+    value: function sub() {
+      return styles[_sub[this.id]];
+    }
+    /**
+     * Get the style of a fraction numerator given the fraction in the current
+     * style.
+     * @method module:mathstyle.MathStyle#fracNum
+     * @private
+     */
+
+  }, {
+    key: "fracNum",
+    value: function fracNum() {
+      return styles[_fracNum[this.id]];
+    }
+    /**
+     * Get the style of a fraction denominator given the fraction in the current
+     * style.
+     * @method module:mathstyle.MathStyle#fracDen
+     * @private
+     */
+
+  }, {
+    key: "fracDen",
+    value: function fracDen() {
+      return styles[_fracDen[this.id]];
+    }
+    /**
+     * Get the cramped version of a style (in particular, cramping a cramped style
+     * doesn't change the style).
+     * @method module:mathstyle.MathStyle#cramp
+     * @private
+     */
+
+  }, {
+    key: "cramp",
+    value: function cramp() {
+      return styles[_cramp[this.id]];
+    }
+    /**
+     * HTML class name, like `displaystyle cramped`
+     * @method module:mathstyle.MathStyle#cls
+     * @private
+     */
+
+  }, {
+    key: "cls",
+    value: function cls() {
+      return sizeNames[this.size];
+    }
+    /**
+     * HTML Reset class name, like 'reset-textstyle'
+     * @method module:mathstyle.MathStyle#adjustTo
+     * @private
+     */
+
+  }, {
+    key: "adjustTo",
+    value: function adjustTo(newStyle) {
+      var result = ADJUST_NAMES[this.size][newStyle.size];
+      if (result.length > 0) result = ' ' + result;
+      return result;
+    }
+    /**
+     * Return if this style is tightly spaced (scriptstyle/scriptscriptstyle)
+     * @method module:mathstyle.MathStyle#isTight
+     * @private
+     */
+
+  }, {
+    key: "isTight",
+    value: function isTight() {
+      return this.size >= 2;
+    }
+  }]);
+
+  return Mathstyle;
+}(); // IDs of the different styles
+
+
+var D = 0;
+var Dc = 1;
+var T = 2;
+var Tc = 3;
+var S = 4;
+var Sc = 5;
+var SS = 6;
+var SSc = 7; // Instances of the different styles
+
+var styles = [new Mathstyle(D, 0, 1.0, false), new Mathstyle(Dc, 0, 1.0, true), new Mathstyle(T, 1, 1.0, false), new Mathstyle(Tc, 1, 1.0, true), new Mathstyle(S, 2, 0.7, false), new Mathstyle(Sc, 2, 0.7, true), new Mathstyle(SS, 3, 0.5, false), new Mathstyle(SSc, 3, 0.5, true)];
+/**
+ * Maps a string (or a Mathstyle) to an actual Mathstyle object.
+ * @param {(Mathstyle|string)} s
+ * @return {Mathstyle}
+ * @memberof module:mathstyle
+ * @private
+ */
+
+function toMathstyle(s) {
+  if (!s) return s;
+  if (_typeof(s) === 'object') return s;
+  var STYLE_NAMES = {
+    'displaystyle': styles[D],
+    'textstyle': styles[T],
+    'scriptstyle': styles[S],
+    'scriptscriptstyle': styles[SS]
+  };
+  console.assert(STYLE_NAMES[s], 'unknown style: "', s, '"');
+  return STYLE_NAMES[s];
+} // String names for the different sizes
+
+
+var sizeNames = ['displaystyle textstyle', 'textstyle', 'scriptstyle', 'scriptscriptstyle'];
+var ADJUST_NAMES = [['', // 'reset-textstyle displaystyle textstyle',
+'', // 'reset-textstyle textstyle',
+'reset-textstyle scriptstyle', 'reset-textstyle scriptscriptstyle'], ['reset-textstyle displaystyle textstyle', '', // 'reset-textstyle textstyle',
+'reset-textstyle scriptstyle', 'reset-textstyle scriptscriptstyle'], ['reset-scriptstyle textstyle displaystyle', 'reset-scriptstyle textstyle', '', // 'reset-scriptstyle scriptstyle',
+'reset-scriptstyle scriptscriptstyle'], ['reset-scriptscriptstyle textstyle displaystyle', 'reset-scriptscriptstyle textstyle', 'reset-scriptscriptstyle scriptstyle', '' // 'reset-scriptscriptstyle scriptscriptstyle'
+]]; // Lookup tables for switching from one style to another
+
+var _sup = [S, Sc, S, Sc, SS, SSc, SS, SSc];
+var _sub = [Sc, Sc, Sc, Sc, SSc, SSc, SSc, SSc];
+var _fracNum = [T, Tc, S, Sc, SS, SSc, SS, SSc];
+var _fracDen = [Tc, Tc, Sc, Sc, SSc, SSc, SSc, SSc];
+var _cramp = [Dc, Dc, Tc, Tc, Sc, Sc, SSc, SSc]; // We only export some of the styles. Also, we don't export the `Mathstyle`
+// class so no more styles can be generated.
+
+var _default = {
+  DISPLAY: styles[D],
+  TEXT: styles[T],
+  SCRIPT: styles[S],
+  SCRIPTSCRIPT: styles[SS],
+  toMathstyle: toMathstyle
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/parser.js b/dist/core/parser.js
new file mode 100644
index 000000000..3bab51f01
--- /dev/null
+++ b/dist/core/parser.js
@@ -0,0 +1,1643 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _definitions = _interopRequireDefault(require("./definitions.js"));
+
+var _color = _interopRequireDefault(require("./color.js"));
+
+var _fontMetrics = _interopRequireDefault(require("./fontMetrics.js"));
+
+var _lexer = _interopRequireDefault(require("./lexer.js"));
+
+var _mathAtom = _interopRequireDefault(require("./mathAtom.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var MathAtom = _mathAtom.default.MathAtom;
+/**
+ * A parser transforms a list of tokens into a list of MathAtom.
+ *
+ * @param {Token[]} tokens - An array of tokens generated by the lexer.
+ * @param {Object.<string>} [args] - An optional list of arguments. `#n` tokens will be
+ * substituted with the corresponding element in the args object. This is used
+ * when parsing macros.
+ * @class module:core/parser#Parser
+ * @property {Object.<string, string>} [macros] - Optional macro definitions.
+ * @property {Token[]} tokens - An array of tokens generated by the lexer.
+ * @property {Object.<string>} args - Optional arguments to substitute the `#` token.
+ * @property {Object.<string, string>} macros - A dictionary of objects, index by the name of
+ * the macro, with the following keys:
+ *    * args: an integer, the number of arguments, default 0. They can be referenced as #0,
+ *       #1, #2... inside the definition of the macro
+ *    * def: a string, the definition of the macro, which can reference other macros
+ * @property {number} index - The current token to be parsed: index in `this.tokens`
+ * @property {MathAtom[]} mathList - Accumulated result of the parsing by
+ * `parseAtom()`
+ * @property {object} style - The font, weight, color, etc.. to apply to the 
+ * upcoming tokens
+ * @property {string} parseMode - The parse mode indicates the syntax rules to
+ * use to parse the upcoming tokens.
+ *  Valid values include:
+ *  - `'math'`: spaces are ignored, math functions are allowed
+ *  - `'text'`: spaces are accounted for, math functions are ignored
+ *  - `'string'`
+ *  - `'color'`: color name, hex value: `'#fff'`, `'#a0a0a0'`
+ *  - `'number'`: `+/-12.56`
+ *  - `'dimen'`: `'25mu'`, `'2pt'`
+ *  - `'skip'`: `'25mu plus 2em minus fiLll'`, `'2pt'`
+ *  - `'colspec'`: formating of a column in tabular environment, e.g. `'r@{.}l'`
+ * @property {boolean} tabularMode - When in tabular mode, `'&'` is interpreted as
+ *  a column separator and `'\'` as a row separator. Used for matrixes, etc...
+ * @property {number} endCount - Counter to prevent deadlock. If `end()` is
+ * called too many times (1,000) in a row for the same token, bail.
+ * @private
+ */
+
+var Parser =
+/*#__PURE__*/
+function () {
+  function Parser(tokens, args, macros) {
+    _classCallCheck(this, Parser);
+
+    this.tokens = tokens;
+    this.index = 0;
+    this.args = args;
+    this.macros = macros;
+    this.mathList = [];
+    this.style = {};
+    this.parseMode = 'math';
+    this.tabularMode = false;
+    this.endCount = 0;
+  }
+
+  _createClass(Parser, [{
+    key: "swapMathList",
+    value: function swapMathList(newMathList) {
+      var result = this.mathList;
+      this.mathList = newMathList || [];
+      return result;
+    }
+  }, {
+    key: "swapParseMode",
+    value: function swapParseMode(mode) {
+      var result = this.parseMode;
+      this.parseMode = mode;
+      return result;
+    }
+    /**
+     * True if we've reached the end of the token stream.
+     * @method module:core/parser#Parser#end
+     * @private
+     */
+
+  }, {
+    key: "end",
+    value: function end() {
+      // To prevent a deadlock, count how many times end() is called without the
+      // index advancing. If it happens more than 1,000 times in a row,
+      // assume something is broken and pretend the stream is finished.
+      this.endCount++;
+      return this.index >= this.tokens.length || this.endCount > 1000;
+    }
+  }, {
+    key: "get",
+    value: function get() {
+      this.endCount = 0;
+      return this.index < this.tokens.length ? this.tokens[this.index++] : null;
+    }
+  }, {
+    key: "peek",
+    value: function peek(offset) {
+      var index = this.index + (offset ? offset : 0);
+      return index < this.tokens.length ? this.tokens[index] : null;
+    }
+    /**
+     * Return the last atom of the math list
+     * If there isn't one, insert a `msubsup` and return it.
+     * @method Parser#lastMathAtom
+     */
+
+  }, {
+    key: "lastMathAtom",
+    value: function lastMathAtom() {
+      var lastType = this.mathList.length === 0 ? 'none' : this.mathList[this.mathList.length - 1].type;
+
+      if (lastType !== 'mop' && lastType !== 'msubsup') {
+        // ZERO WIDTH SPACE
+        var lastAtom = new MathAtom(this.parseMode, 'msubsup', "\u200B");
+        lastAtom.attributes = {
+          'aria-hidden': true
+        };
+        this.mathList.push(lastAtom);
+      }
+
+      return this.mathList[this.mathList.length - 1];
+    }
+    /**
+     * @param {string} type
+     * @return {boolean} True if the next token is of the specified type
+     * @method module:core/parser#Parser#hasToken
+     */
+
+  }, {
+    key: "hasToken",
+    value: function hasToken(type) {
+      var index = this.index;
+      return index < this.tokens.length ? this.tokens[index].type === type : false;
+    }
+    /**
+     * @param {string} [value]
+     * @return {boolean} True if the next token is of type `'literal` and has the
+     * specified value. If `value` is empty, return true if the token is of type
+     * `'literal'`
+     * @method Parser#hasLiteral
+     */
+
+  }, {
+    key: "hasLiteral",
+    value: function hasLiteral(value) {
+      var index = this.index;
+      return index < this.tokens.length ? this.tokens[index].type === 'literal' && (!value || this.tokens[index].value === value) : false;
+    }
+    /**
+     * @param {RegEx} pattern
+     * @return {boolean} True if the next token is of type `'literal` and matches
+     * the specified regular expression pattern.
+     * @method module:core/parser#Parser#hasLiteralPattern
+     */
+
+  }, {
+    key: "hasLiteralPattern",
+    value: function hasLiteralPattern(pattern) {
+      return this.hasToken('literal') && pattern.test(this.tokens[this.index].value);
+    }
+  }, {
+    key: "hasCommand",
+    value: function hasCommand(command) {
+      console.assert(command === '\\' || command.charAt(0) !== '\\', 'hasCommand() does not require a \\');
+      var index = this.index;
+      return index < this.tokens.length ? this.tokens[index].type === 'command' && this.tokens[index].value === command : false;
+    }
+  }, {
+    key: "hasInfixCommand",
+    value: function hasInfixCommand() {
+      var index = this.index;
+
+      if (index < this.tokens.length && this.tokens[index].type === 'command') {
+        var info = _definitions.default.getInfo('\\' + this.tokens[index].value, this.parseMode, this.macros);
+
+        return info && info.infix;
+      }
+
+      return false;
+    }
+  }, {
+    key: "hasColumnSeparator",
+    value: function hasColumnSeparator() {
+      var index = this.index;
+      return this.tabularMode && index < this.tokens.length ? this.tokens[index].type === 'literal' && this.tokens[index].value === '&' : false;
+    }
+  }, {
+    key: "hasRowSeparator",
+    value: function hasRowSeparator() {
+      var index = this.index;
+      return this.tabularMode && index < this.tokens.length ? this.tokens[index].type === 'command' && (this.tokens[index].value === '\\' || this.tokens[index].value === 'cr') : false;
+    }
+  }, {
+    key: "parseColumnSeparator",
+    value: function parseColumnSeparator() {
+      if (this.hasColumnSeparator()) {
+        this.index++;
+        return true;
+      }
+
+      return false;
+    }
+    /**
+     * Return the appropriate value for a placeholder, either a default
+     * one, or if a value was provided for #? via args, that value.
+     */
+
+  }, {
+    key: "placeholder",
+    value: function placeholder() {
+      if (this.args && typeof this.args['?'] === 'string') {
+        // If there is a specific value defined for the placeholder,
+        // use it.
+        return parseTokens(_lexer.default.tokenize(this.args['?']), this.parseMode, null, this.macros);
+      } // U+2753 = BLACK QUESTION MARK ORNAMENT
+
+
+      var result = new MathAtom(this.parseMode, 'placeholder', '?', this.style);
+      result.captureSelection = true;
+      return [result];
+    }
+  }, {
+    key: "hasImplicitCommand",
+    value: function hasImplicitCommand(commands) {
+      if (this.index < this.tokens.length) {
+        var token = this.tokens[this.index];
+
+        if (token.type === 'command') {
+          return commands.includes(token.value);
+        }
+      }
+
+      return false;
+    }
+  }, {
+    key: "parseRowSeparator",
+    value: function parseRowSeparator() {
+      if (this.hasRowSeparator()) {
+        this.index++;
+        return true;
+      }
+
+      return false;
+    }
+    /**
+     * @param {string} type
+     * @method module:core/parser#Parser#parseToken
+     */
+
+  }, {
+    key: "parseToken",
+    value: function parseToken(type) {
+      if (this.hasToken(type)) {
+        this.index++;
+        return true;
+      }
+
+      return false;
+    }
+  }, {
+    key: "skipWhitespace",
+    value: function skipWhitespace() {
+      var found = false;
+
+      while (this.hasToken('space')) {
+        this.index++;
+        found = true;
+      }
+
+      return found;
+    }
+  }, {
+    key: "skipUntilToken",
+    value: function skipUntilToken(type) {
+      while (!this.end() && !this.parseToken(type)) {
+        this.get();
+      }
+    }
+  }, {
+    key: "parseCommand",
+    value: function parseCommand(command) {
+      if (this.hasCommand(command)) {
+        this.index++;
+        return true;
+      }
+
+      return false;
+    }
+  }, {
+    key: "parseLiteral",
+    value: function parseLiteral(literal) {
+      if (this.hasLiteral(literal)) {
+        this.index++;
+        return true;
+      }
+
+      return false;
+    }
+  }, {
+    key: "parseFiller",
+    value: function parseFiller() {
+      var skipped = false;
+      var done = false;
+
+      do {
+        var skippedSpace = this.skipWhitespace();
+        var skippedRelax = this.parseCommand('relax');
+        skipped = skipped || skippedSpace || skippedRelax;
+        done = !skippedSpace && !skippedRelax;
+      } while (!done);
+
+      return skipped;
+    }
+    /**
+     * Keywords are used to specify dimensions, and for various other
+     * syntactic constructs. Unlike commands, they are not case sensitive.
+     * There are 25 keywords:
+     * at by bp cc cm dd depth em ex fil fill filll height in minus
+     * mm mu pc plus pt sp spread to true width
+     *
+     * TeX: 8212
+     * @param {string} keyword
+     * @return {boolean} true if the expected keyword is present
+     * @method module:core/parser#Parser#parseKeyword
+     * @private
+     */
+
+  }, {
+    key: "parseKeyword",
+    value: function parseKeyword(keyword) {
+      var savedIndex = this.index;
+      var done = this.end();
+      var value = '';
+
+      while (!done) {
+        var token = this.get();
+
+        if (token.type === 'literal') {
+          value += token.value;
+        }
+
+        done = this.end() || token.type !== 'literal' || value.length >= keyword.length;
+      }
+
+      var hasKeyword = keyword.toUpperCase() === value.toUpperCase();
+
+      if (!hasKeyword) {
+        this.index = savedIndex;
+      }
+
+      return hasKeyword;
+    }
+    /**
+     * Return a sequence of characters as a string.
+     * i.e. 'abcd' returns 'abcd'.
+     * Terminates on the first non-character encountered
+     * e.g. '{', '}' etc...
+     * Will also terminate on ']'
+     * @return {string}
+     * @method module:core/parser#Parser#scanString
+     * @private
+     */
+
+  }, {
+    key: "scanString",
+    value: function scanString() {
+      var result = '';
+      var done = this.end();
+
+      while (!done) {
+        if (this.hasLiteral(']')) {
+          done = true;
+        } else if (this.hasToken('literal')) {
+          result += this.get().value;
+        } else if (this.skipWhitespace()) {
+          result += ' ';
+        } else if (this.hasToken('command')) {
+          var token = this.get();
+
+          if (token.value === 'space') {
+            // The 'space' command is the ~
+            // which can be used for example in operator names, i.e.
+            // \operatorname{lim~inf}. It's interpreted as a nbs
+            result += "\xA0"; // NO-BREAK SPACE
+          } else {
+            // TeX will give a 'Missing \endcsname inserted' error
+            // if it encounters any command when expecting a string.
+            // We're a bit more lax.
+            result += token.value;
+          }
+        } else {
+          done = true;
+        }
+
+        done = done || this.end();
+      }
+
+      return result;
+    }
+    /**
+     * Return a CSS color (#rrggbb)
+     * @method module:core/parser#Parser#scanColor
+     * @private
+     */
+
+  }, {
+    key: "scanColor",
+    value: function scanColor() {
+      return _color.default.stringToColor(this.scanString());
+    }
+    /**
+     * Return as a number a group of characters representing a
+     * numerical quantity.
+     *
+     * From TeX:8695 (scan_int):
+     * An integer number can be preceded by any number of spaces and `\.+' or
+     * `\.-' signs. Then comes either a decimal constant (i.e., radix 10), an
+     * octal constant (i.e., radix 8, preceded by~\.\'), a hexadecimal constant
+     * (radix 16, preceded by~\."), an alphabetic constant (preceded by~\.\`), or
+     * an internal variable.
+     * @return {number}
+     * @method Parser#scanNumber
+     * @private
+     */
+
+  }, {
+    key: "scanNumber",
+    value: function scanNumber(isInteger) {
+      var negative = this.parseLiteral('-'); // Optional (ignorable) '+' sign
+
+      if (!negative) this.parseLiteral('+');
+      this.skipWhitespace();
+      isInteger = !!isInteger;
+      var radix = 10;
+      var digits = /[0-9]/;
+
+      if (this.parseLiteral("'")) {
+        // Apostrophe indicates an octal value
+        radix = 8;
+        digits = /[0-7]/;
+        isInteger = true;
+      } else if (this.parseLiteral('"') || this.parseLiteral('x')) {
+        // Double-quote indicates a hex value
+        // The 'x' prefix notation for the hexadecimal numbers is a MathJax extension.
+        // For example: 'x3a'
+        radix = 16; // Hex digits have to be upper-case
+
+        digits = /[0-9A-F]/;
+        isInteger = true;
+      }
+
+      var value = '';
+
+      while (this.hasLiteralPattern(digits)) {
+        value += this.get().value;
+      } // Parse the fractional part, if applicable
+
+
+      if (!isInteger && (this.parseLiteral('.') || this.parseLiteral(','))) {
+        value += '.';
+
+        while (this.hasLiteralPattern(digits)) {
+          value += this.get().value;
+        }
+      }
+
+      var result = isInteger ? parseInt(value, radix) : parseFloat(value);
+      return negative ? -result : result;
+    }
+    /**
+     * Return as a floating point number a dimension in pt (1 em = 10 pt)
+     *
+     * See TeX:8831
+     * @todo: note that some units depend on the font (em, ex). So it might be
+     * better to return a dimen struct with the value + unit and resolve
+     * later when we have a font context....
+     * @return {number}
+     * @method module:core/parser#Parser#scanDimen
+     * @private
+     */
+
+  }, {
+    key: "scanDimen",
+    value: function scanDimen() {
+      var value = this.scanNumber(false);
+      this.skipWhitespace();
+      var result;
+
+      if (this.parseKeyword('pt')) {
+        result = _fontMetrics.default.toEm(value, 'pt');
+      } else if (this.parseKeyword('mm')) {
+        result = _fontMetrics.default.toEm(value, 'mm');
+      } else if (this.parseKeyword('cm')) {
+        result = _fontMetrics.default.toEm(value, 'cm');
+      } else if (this.parseKeyword('ex')) {
+        result = _fontMetrics.default.toEm(value, 'ex');
+      } else if (this.parseKeyword('px')) {
+        result = _fontMetrics.default.toEm(value, 'px');
+      } else if (this.parseKeyword('em')) {
+        result = _fontMetrics.default.toEm(value, 'em');
+      } else if (this.parseKeyword('bp')) {
+        result = _fontMetrics.default.toEm(value, 'bp');
+      } else if (this.parseKeyword('dd')) {
+        result = _fontMetrics.default.toEm(value, 'dd');
+      } else if (this.parseKeyword('pc')) {
+        result = _fontMetrics.default.toEm(value, 'pc');
+      } else if (this.parseKeyword('in')) {
+        result = _fontMetrics.default.toEm(value, 'in');
+      } else if (this.parseKeyword('mu')) {
+        result = _fontMetrics.default.toEm(value, 'mu');
+      } else {
+        // If the units are missing, TeX assumes 'pt'
+        result = _fontMetrics.default.toEm(value, 'pt');
+      }
+
+      return result;
+    }
+  }, {
+    key: "scanSkip",
+    value: function scanSkip() {
+      var result = this.scanDimen(); // We parse, but ignore the optional 'plus' and 'minus'
+      // arguments.
+
+      this.skipWhitespace(); // 'plus', optionally followed by 'minus'
+      // ('minus' cannot come before 'plus')
+      // dimen or 'hfill'
+
+      if (this.parseKeyword('plus')) {
+        // @todo there could also be a \hFilLlL command here
+        this.scanDimen();
+      }
+
+      this.skipWhitespace();
+
+      if (this.parseKeyword('minus')) {
+        // @todo there could also be a \hFilLlL command here
+        this.scanDimen();
+      }
+
+      return result;
+    }
+  }, {
+    key: "scanColspec",
+    value: function scanColspec() {
+      this.skipWhitespace();
+      var result = [];
+
+      while (!this.end() && !(this.hasToken('}') || this.hasLiteral(']'))) {
+        if (this.hasLiteral()) {
+          var literal = this.get().value;
+
+          if ('lcr'.includes(literal)) {
+            result.push({
+              align: literal
+            });
+          } else if (literal === '|') {
+            result.push({
+              rule: true
+            });
+          } else if (literal === '@') {
+            if (this.parseToken('{')) {
+              var savedParsemode = this.swapParseMode('math');
+              result.push({
+                gap: this.scanImplicitGroup(function (token) {
+                  return token.type === '}';
+                })
+              });
+              this.swapParseMode(savedParsemode);
+            }
+
+            this.parseToken('}');
+          }
+        }
+      }
+
+      return result;
+    }
+    /**
+     * Parse a `\(...\)` or `\[...\]` sequence
+     * @return {MathAtom} group for the sequence or null
+     * @method module:core/parser#Parser#scanModeSet
+     * @private
+     */
+
+  }, {
+    key: "scanModeSet",
+    value: function scanModeSet() {
+      var final;
+      if (this.parseCommand('(')) final = ')';
+      if (!final && this.parseCommand('[')) final = ']';
+      if (!final) return null;
+      var savedParsemode = this.swapParseMode('math');
+      var result = new MathAtom('math', 'group');
+      result.mathstyle = final === ')' ? 'textstyle' : 'displaystyle';
+      result.body = this.scanImplicitGroup(function (token) {
+        return token.type === 'command' && token.value === final;
+      });
+      this.parseCommand(final);
+      this.swapParseMode(savedParsemode);
+      if (!result.body || result.body.length === 0) return null;
+      return result;
+    }
+    /**
+     * Parse a `$...$` or `$$...$$` sequence
+     * @method Parser#scanModeShift
+     * @private
+     */
+
+  }, {
+    key: "scanModeShift",
+    value: function scanModeShift() {
+      if (!this.hasToken('$') && !this.hasToken('$$')) return null;
+      var final = this.get().type;
+      var result = new MathAtom('math', 'group');
+      result.mathstyle = final === '$' ? 'textstyle' : 'displaystyle';
+      result.latexOpen = result.mathstyle === 'textstyle' ? '$' : '$$';
+      result.latexClose = result.latexOpen;
+      var savedParsemode = this.swapParseMode('math');
+      result.body = this.scanImplicitGroup(function (token) {
+        return token.type === final;
+      });
+      this.parseToken(final);
+      this.swapParseMode(savedParsemode);
+      if (!result.body || result.body.length === 0) return null;
+      return result;
+    }
+    /**
+     * Parse a \begin{env}...\end{end} sequence
+     * @method module:core/parser#Parser#scanEnvironment
+     * @private
+     */
+
+  }, {
+    key: "scanEnvironment",
+    value: function scanEnvironment() {
+      // An environment starts with a \begin command
+      if (!this.parseCommand('begin')) return null; // The \begin command is immediately followed by the environment
+      // name, as a string argument
+
+      var envName = this.scanArg('string');
+
+      var env = _definitions.default.getEnvironmentInfo(envName); // If the environment has some arguments, parse them
+
+
+      var args = [];
+
+      if (env && env.params) {
+        var _iteratorNormalCompletion = true;
+        var _didIteratorError = false;
+        var _iteratorError = undefined;
+
+        try {
+          for (var _iterator = env.params[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+            var param = _step.value;
+
+            // Parse an argument
+            if (param.optional) {
+              // If it's not present, return the default argument value
+              var arg = this.scanOptionalArg(param.type); // args.push(arg ? arg : param.defaultValue); @todo defaultvalue
+
+              args.push(arg);
+            } else {
+              // If it's not present, scanArg returns null,
+              // but push it on the list of arguments anyway.
+              // The null value will be interpreted as unspecified
+              // optional value by the command parse function.
+              args.push(this.scanArg(param.type));
+            }
+          }
+        } catch (err) {
+          _didIteratorError = true;
+          _iteratorError = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion && _iterator.return != null) {
+              _iterator.return();
+            }
+          } finally {
+            if (_didIteratorError) {
+              throw _iteratorError;
+            }
+          }
+        }
+      } // Some environments change the mode
+
+
+      var savedMode = this.parseMode;
+      var savedTabularMode = this.tabularMode;
+      var savedMathList = this.swapMathList([]); // @todo: since calling scanImplicitGroup(), may not need to save/restore the mathlist
+
+      this.tabularMode = env.tabular;
+      var array = [];
+      var rowGaps = [];
+      var row = [];
+      var done = false;
+
+      do {
+        done = this.end();
+
+        if (!done && this.parseCommand('end')) {
+          done = this.scanArg('string') === envName;
+        }
+
+        if (!done) {
+          if (this.parseColumnSeparator()) {
+            row.push(this.swapMathList([]));
+          } else if (this.parseRowSeparator()) {
+            row.push(this.swapMathList([]));
+            var gap = 0;
+            this.skipWhitespace();
+
+            if (this.parseLiteral('[')) {
+              gap = this.scanDimen();
+              this.skipWhitespace();
+              this.parseLiteral(']');
+            }
+
+            rowGaps.push(gap || 0);
+            array.push(row);
+            row = [];
+          } else {
+            this.mathList = this.mathList.concat(this.scanImplicitGroup());
+          }
+        }
+      } while (!done);
+
+      row.push(this.swapMathList([]));
+      if (row.length > 0) array.push(row);
+      var newMathList = this.swapMathList(savedMathList); // If we're in tabular mode, we should end up with an empty mathlist
+
+      console.assert(!this.tabularMode || newMathList.length === 0, 'Leftover atoms in tabular mode');
+      this.parseMode = savedMode;
+      this.tabularMode = savedTabularMode;
+      if (!env.tabular && newMathList.length === 0) return null;
+      if (env.tabular && array.length === 0) return null;
+      var result = new MathAtom(this.parseMode, 'array', newMathList, env.parser ? env.parser(envName, args, array) : {});
+      result.array = array;
+      result.rowGaps = rowGaps;
+      result.env = _objectSpread({}, env);
+      result.env.name = envName;
+      return result;
+    }
+    /**
+     * Parse a sequence terminated with a group end marker, such as
+     * `}`, `\end`, `&`, etc...
+     * 
+     * Returns an array of atoms or an empty array if the sequence
+     * terminates right away.
+     * 
+     * @param {function(Token):boolean} [done] A predicate indicating if a 
+     * token signals the end of an implicit group
+     * @return {MathAtom[]}
+     * @method module:core/parser#Parser#scanImplicitGroup
+     * @private
+     */
+
+  }, {
+    key: "scanImplicitGroup",
+    value: function scanImplicitGroup(done) {
+      // An implicit group is a sequence of atoms that terminates with
+      // a `'}'`, `'&'`, `'\'`, `'\cr'` or `'\end'` or the end of the stream
+      var savedStyle = this.style;
+
+      if (!done) {
+        done = function done(token) {
+          return token.type === '}' || token.type === 'literal' && token.value === '&' || token.type === 'command' && /^(end|cr|\\)$/.test(token.value);
+        };
+      } // To handle infix operators, we'll keep track of their prefix
+      // (tokens coming before them)
+
+
+      var infix = null; // A token
+
+      var prefix = null; // A mathlist
+
+      var savedMathlist = this.swapMathList([]); // if (this.index >= this.tokens.length) return true;
+      // const token = this.tokens[this.index];
+
+      while (!this.end() && !done(this.peek())) {
+        if (this.hasImplicitCommand(['displaystyle', 'textstyle', 'scriptstyle', 'scriptscriptstyle'])) {
+          // Implicit math style commands such as \displaystyle, \textstyle...
+          // Note these commands switch to math mode and a specific size
+          // \textsize is the mathstyle used for inlinemath, not for text
+          this.parseMode = 'math';
+          var atom = new MathAtom('math', 'mathstyle');
+          atom.mathstyle = this.get().value;
+          this.mathList.push(atom);
+        } else if (this.hasInfixCommand() && !infix) {
+          // The next token is an infix and we have not seen one yet
+          // (there can be only one infix command per implicit group).
+          infix = this.get(); // Save the math list so far and start a new one
+
+          prefix = this.swapMathList([]);
+        } else {
+          this.parseAtom();
+        }
+      }
+
+      var result;
+
+      if (infix) {
+        var suffix = this.swapMathList(savedMathlist); // The current parseMode, this.parseMode, may no longer have the value
+        // it had when we encountered the infix. However, since all infix are
+        // only defined in 'math' mode, we can use the 'math' constant
+        // for the parseMode
+
+        var info = _definitions.default.getInfo('\\' + infix.value, 'math', this.macros);
+
+        if (info) {
+          result = [new MathAtom(this.parseMode, info.type, info.value || infix.value, // Functions don't have
+          info.parse ? info.parse('\\' + infix.value, [prefix, suffix]) : null)];
+        } else {
+          result = [new MathAtom(this.parseMode, 'mop', infix.value)];
+        }
+      } else {
+        result = this.swapMathList(savedMathlist);
+      }
+
+      this.style = savedStyle;
+      return result;
+    }
+    /**
+     * Parse a group enclosed in a pair of braces: `{...}`.
+     *
+     * Return either a group MathAtom or null if not a group.
+     *
+     * Return a group MathAtom with an empty body if an empty
+     * group (i.e. `{}`).
+     * @return {MathAtom}
+     * @method module:core/parser#Parser#scanGroup
+     * @private
+     */
+
+  }, {
+    key: "scanGroup",
+    value: function scanGroup() {
+      if (!this.parseToken('{')) return null;
+      var result = new MathAtom(this.parseMode, 'group');
+      result.body = this.scanImplicitGroup(function (token) {
+        return token.type === '}';
+      });
+      this.parseToken('}');
+      result.latexOpen = '{';
+      result.latexClose = '}';
+      return result;
+    }
+  }, {
+    key: "scanSmartFence",
+    value: function scanSmartFence() {
+      this.skipWhitespace();
+      if (!this.parseLiteral('(')) return null; // We've found an open paren... Convert to a `\mleft...\mright`
+
+      var result = new MathAtom(this.parseMode, 'leftright');
+      result.leftDelim = '(';
+      result.inner = false; // It's a `\mleft`, not a `\left`
+
+      var savedMathList = this.swapMathList([]);
+      var nestLevel = 1;
+
+      while (!this.end() && nestLevel !== 0) {
+        if (this.hasLiteral('(')) nestLevel += 1;
+        if (this.hasLiteral(')')) nestLevel -= 1;
+        if (nestLevel !== 0) this.parseAtom();
+      }
+
+      if (nestLevel === 0) this.parseLiteral(')');
+      result.rightDelim = nestLevel === 0 ? ')' : '?';
+      result.body = this.swapMathList(savedMathList);
+      return result;
+    }
+    /**
+     * Scan a delimiter, e.g. '(', '|', '\vert', '\ulcorner'
+     *
+     * @return {string} The delimiter (as a character or command) or null
+     * @memberof Parser
+     * @method module:core/parser#Parser#scanDelim
+     * @private
+     */
+
+  }, {
+    key: "scanDelim",
+    value: function scanDelim() {
+      this.skipWhitespace();
+      var token = this.get();
+      if (!token) return null;
+      var delim = '.';
+
+      if (token.type === 'command') {
+        delim = '\\' + token.value;
+      } else if (token.type === 'literal') {
+        delim = token.value;
+      }
+
+      var info = _definitions.default.getInfo(delim, 'math', this.macros);
+
+      if (!info) return null;
+
+      if (info.type === 'mopen' || info.type === 'mclose') {
+        return delim;
+      } // Some symbols are not of type mopen/mclose, but are still
+      // valid delimiters...
+      // '?' is a special delimiter used as a 'placeholder'
+      // (when the closing delimiter is displayed greyed out)
+
+
+      if (/^(\?|\||<|>|\\vert|\\Vert|\\\||\\surd|\\uparrow|\\downarrow|\\Uparrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\mid|\\mvert|\\mVert)$/.test(delim)) {
+        return delim;
+      }
+
+      return null;
+    }
+    /**
+     * Parse a `/left.../right` sequence.
+     *
+     * Note: the `/middle` command can occur multiple times inside a
+     * `/left.../right` sequence, and is handled separately.
+     *
+     * Return either an atom of type `'leftright'` or null
+     * @return {MathAtom}
+     * @method module:core/parser#Parser#scanLeftRight
+     * @private
+     */
+
+  }, {
+    key: "scanLeftRight",
+    value: function scanLeftRight() {
+      if (this.parseCommand('right') || this.parseCommand('mright')) {
+        // We have an unbalanced left/right (there's a \right, but no \left)
+        var _result = new MathAtom(this.parseMode, 'leftright');
+
+        _result.rightDelim = this.scanDelim() || '.';
+        return _result;
+      }
+
+      var savedStyle = this.style;
+      var close = 'right';
+
+      if (!this.parseCommand('left')) {
+        if (!this.parseCommand('mleft')) return null;
+        close = 'mright';
+      }
+
+      var leftDelim = this.scanDelim() || '.';
+      var savedMathList = this.swapMathList([]);
+
+      while (!this.end() && !this.parseCommand(close)) {
+        this.parseAtom();
+      }
+
+      this.style = savedStyle; // If we've reached the end and there was no `\right` or
+      // there isn't a valid delimiter after `\right`, we'll
+      // consider the `\right` missing and set the `rightDelim` to undefined
+
+      var rightDelim = this.scanDelim();
+      var result = new MathAtom(this.parseMode, 'leftright');
+      result.leftDelim = leftDelim;
+      result.rightDelim = rightDelim;
+      result.inner = close === 'right';
+      result.body = this.swapMathList(savedMathList);
+      return result;
+    }
+    /**
+     * Parse a subscript/superscript: `^` and `_`.
+     *
+     * Modify the last atom accordingly.
+     *
+     * @return {MathAtom}
+     * @method module:core/parser#Parser#parseSupSub
+     * @private
+     */
+
+  }, {
+    key: "parseSupSub",
+    value: function parseSupSub() {
+      // No sup/sub in text or command mode.
+      if (this.parseMode !== 'math') return false; // Apply the subscript/superscript to the last render atom.
+      // If none is present (beginning of the mathlist, i.e. `{^2}`,
+      // an empty atom will be created, equivalent to `{{}^2}`
+
+      var result = false;
+
+      while (this.hasLiteral('^') || this.hasLiteral('_') || this.hasLiteral("'")) {
+        var supsub = void 0;
+
+        if (this.hasLiteral('^')) {
+          supsub = 'superscript';
+        } else if (this.hasLiteral('_')) {
+          supsub = 'subscript';
+        }
+
+        if (this.parseLiteral('^') || this.parseLiteral('_')) {
+          var arg = this.scanArg();
+
+          if (arg) {
+            var atom = this.lastMathAtom();
+            atom[supsub] = atom[supsub] || [];
+            atom[supsub] = atom[supsub].concat(arg);
+            result = true;
+          }
+        } else if (this.parseLiteral("'")) {
+          // A single quote (prime) is actually equivalent to a
+          // '^{\prime}'
+          var _atom = this.lastMathAtom();
+
+          _atom.superscript = _atom.superscript || [];
+
+          _atom.superscript.push(new MathAtom(_atom.parseMode, 'mord', "\u2032"));
+
+          result = true;
+        }
+      }
+
+      return result;
+    }
+    /**
+     * Parse a `\limits` or `\nolimits` command.
+     *
+     * This will change the placement of limits to be either above or below
+     * (if `\limits`) or in the superscript/subscript position (if `\nolimits`).
+     *
+     * This overrides the calculation made for the placement, which is usually
+     * dependent on the displaystyle (`inlinemath` prefers `\nolimits`, while
+     * `displaymath` prefers `\limits`).
+     * @method module:core/parser#Parser#parseLimits
+     * @private
+     */
+
+  }, {
+    key: "parseLimits",
+    value: function parseLimits() {
+      // Note: technically, \limits and \nolimits are only applicable
+      // after an operator. However, we apply them in all cases. They
+      // will simply be ignored when not applicable (i.e. on a literal)
+      // which is actually consistent with TeX.
+      if (this.parseCommand('limits')) {
+        var lastAtom = this.lastMathAtom();
+        lastAtom.limits = 'limits'; // Record that the limits was set through an explicit command
+        // so we can generate the appropriate LaTeX later
+
+        lastAtom.explicitLimits = true;
+        return true;
+      }
+
+      if (this.parseCommand('nolimits')) {
+        var _lastAtom = this.lastMathAtom();
+
+        _lastAtom.limits = 'nolimits'; // Record that the limits was set through an explicit command
+        // so we can generate the appropriate LaTeX later
+
+        _lastAtom.explicitLimits = true;
+        return true;
+      }
+
+      return false;
+    }
+  }, {
+    key: "scanOptionalArg",
+    value: function scanOptionalArg(parseMode) {
+      parseMode = !parseMode || parseMode === 'auto' ? this.parseMode : parseMode;
+      this.skipWhitespace();
+      if (!this.parseLiteral('[')) return null;
+      var savedParseMode = this.parseMode;
+      this.parseMode = parseMode;
+      var savedMathlist = this.swapMathList();
+      var result;
+
+      while (!this.end() && !this.parseLiteral(']')) {
+        if (parseMode === 'string') {
+          result = this.scanString();
+        } else if (parseMode === 'number') {
+          result = this.scanNumber();
+        } else if (parseMode === 'dimen') {
+          result = this.scanDimen();
+        } else if (parseMode === 'skip') {
+          result = this.scanSkip();
+        } else if (parseMode === 'colspec') {
+          result = this.scanColspec();
+        } else if (parseMode === 'color') {
+          result = this.scanColor() || '#ffffff';
+        } else if (parseMode === 'bbox') {
+          // The \bbox command takes a very particular argument:
+          // a comma delimited list of up to three arguments:
+          // a color, a dimension and a string.
+          // Split the string by comma delimited sub-strings, ignoring commas
+          // that may be inside (). For example"x, rgb(a, b, c)" would return
+          // ['x', 'rgb(a, b, c)']
+          var list = this.scanString().toLowerCase().trim().split(/,(?![^(]*\)(?:(?:[^(]*\)){2})*[^"]*$)/);
+          var _iteratorNormalCompletion2 = true;
+          var _didIteratorError2 = false;
+          var _iteratorError2 = undefined;
+
+          try {
+            for (var _iterator2 = list[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+              var elem = _step2.value;
+
+              var color = _color.default.stringToColor(elem);
+
+              if (color) {
+                result = result || {};
+                result.backgroundcolor = color;
+              } else {
+                var m = elem.match(/^\s*([0-9.]+)\s*([a-z][a-z])/);
+
+                if (m) {
+                  result = result || {};
+                  result.padding = _fontMetrics.default.toEm(m[1], m[2]);
+                } else {
+                  var _m = elem.match(/^\s*border\s*:\s*(.*)/);
+
+                  if (_m) {
+                    result = result || {};
+                    result.border = _m[1];
+                  }
+                }
+              }
+            }
+          } catch (err) {
+            _didIteratorError2 = true;
+            _iteratorError2 = err;
+          } finally {
+            try {
+              if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+                _iterator2.return();
+              }
+            } finally {
+              if (_didIteratorError2) {
+                throw _iteratorError2;
+              }
+            }
+          }
+        } else {
+          console.assert(parseMode === 'math', 'Unexpected parse mode: "' + parseMode + '"');
+          this.mathList = this.mathList.concat(this.scanImplicitGroup(function (token) {
+            return token.type === 'literal' && token.value === ']';
+          }));
+        }
+      }
+
+      this.parseMode = savedParseMode;
+      var mathList = this.swapMathList(savedMathlist);
+      return result ? result : mathList;
+    }
+    /**
+     * Parse a math field, an argument to a function.
+     *
+     * An argument can either be a single atom or
+     * a sequence of atoms enclosed in braces.
+     *
+     * @param {string} [parseMode] Temporarily overrides the parser parsemode. For
+     * example: `'dimension'`, `'color'`, `'text'`, etc...
+     * @method module:core/parser#Parser#scanArg
+     * @private
+     */
+
+  }, {
+    key: "scanArg",
+    value: function scanArg(parseMode) {
+      parseMode = !parseMode || parseMode === 'auto' ? this.parseMode : parseMode;
+      this.parseFiller();
+      var result; // An argument (which is called a 'math field' in TeX)
+      // could be a single character or symbol, as in `\frac12`
+      // Note that ``\frac\sqrt{-1}\alpha\beta`` is equivalent to
+      // ``\frac{\sqrt}{-1}{\beta}``
+
+      if (!this.parseToken('{')) {
+        if (parseMode === 'delim') {
+          return this.scanDelim() || '.';
+        } else if (/^(math|text)$/.test(parseMode)) {
+          // Parse a single atom.
+          var _savedParseMode = this.parseMode;
+          this.parseMode = parseMode;
+          var atom = this.scanToken();
+          this.parseMode = _savedParseMode;
+          if (Array.isArray(atom)) return atom;
+          return atom ? [atom] : null;
+        }
+      } // If this is a param token, substitute it with the
+      // (optional) argument passed to the parser
+
+
+      if (this.hasToken('#')) {
+        var paramToken = this.get();
+        this.skipUntilToken('}');
+
+        if (paramToken.value === '?') {
+          return this.placeholder();
+        }
+
+        if (this.args) {
+          if (this.args[paramToken.value] === undefined && this.args['?'] !== undefined) {
+            return this.placeholder();
+          }
+
+          return this.args[paramToken.value] || null;
+        }
+
+        return null;
+      }
+
+      var savedParseMode = this.parseMode;
+      this.parseMode = parseMode;
+      var savedMathList = this.swapMathList([]);
+
+      if (parseMode === 'string') {
+        result = this.scanString();
+        this.skipUntilToken('}');
+      } else if (parseMode === 'number') {
+        result = this.scanNumber();
+        this.skipUntilToken('}');
+      } else if (parseMode === 'dimen') {
+        result = this.scanDimen();
+        this.skipUntilToken('}');
+      } else if (parseMode === 'skip') {
+        result = this.scanSkip();
+        this.skipUntilToken('}');
+      } else if (parseMode === 'colspec') {
+        result = this.scanColspec();
+        this.skipUntilToken('}');
+      } else if (parseMode === 'color') {
+        result = this.scanColor() || '#ffffff';
+        this.skipUntilToken('}');
+      } else if (parseMode === 'delim') {
+        result = this.scanDelim() || '.';
+        this.skipUntilToken('}');
+      } else {
+        console.assert(/^(math|text)$/.test(parseMode), 'Unexpected parse mode: "' + parseMode + '"');
+
+        do {
+          this.mathList = this.mathList.concat(this.scanImplicitGroup());
+        } while (!this.parseToken('}') && !this.end());
+      }
+
+      this.parseMode = savedParseMode;
+      var mathList = this.swapMathList(savedMathList);
+      return result ? result : mathList;
+    }
+    /**
+     * @return {MathAtom[]|MathAtom}
+     * @method module:core/parser#Parser#scanToken
+     * @private
+     */
+
+  }, {
+    key: "scanToken",
+    value: function scanToken() {
+      var token = this.get();
+      if (!token) return null;
+      var result = null;
+
+      if (token.type === 'space') {
+        if (this.parseMode === 'text') {
+          result = new MathAtom('text', '', ' ', this.style);
+        }
+      } else if (token.type === 'placeholder') {
+        // RENDER PLACEHOLDER
+        result = new MathAtom(this.parseMode, 'placeholder', token.value);
+        result.captureSelection = true;
+      } else if (token.type === 'command') {
+        // RENDER COMMAND
+        if (token.value === 'placeholder') {
+          result = new MathAtom(this.parseMode, 'placeholder', this.scanArg('string'), this.style);
+          result.captureSelection = true;
+        } else if (token.value === 'char') {
+          // \char has a special syntax and requires a non-braced integer
+          // argument
+          var codepoint = Math.floor(this.scanNumber(true));
+
+          if (!isFinite(codepoint) || codepoint < 0 || codepoint > 0x10FFFF) {
+            codepoint = 0x2753; // BLACK QUESTION MARK
+          }
+
+          result = new MathAtom(this.parseMode, this.parseMode === 'math' ? 'mord' : '', String.fromCodePoint(codepoint));
+          result.latex = '{\\char"' + ('000000' + codepoint.toString(16)).toUpperCase().substr(-6) + '}';
+        } else if (token.value === 'hskip' || token.value === 'kern') {
+          // \hskip and \kern have a special syntax and requires a non-braced
+          // 'skip' argument
+          var width = this.scanSkip();
+
+          if (isFinite(width)) {
+            result = new MathAtom(this.parseMode, 'spacing', null, this.style);
+            result.width = width;
+          }
+
+          result.latex = '\\' + token.value;
+        } else {
+          result = this.scanMacro(token.value);
+
+          if (!result) {
+            var info = _definitions.default.getInfo('\\' + token.value, this.parseMode, this.macros);
+
+            var args = [];
+            var argString = ''; // Parse the arguments
+            // let mandatoryParamsCount = 0;
+            // If explicitGroup is not empty, an explicit group is expected 
+            // to follow the command and will be parsed *after* the 
+            // command has been processed.
+            // This is used for commands such as \textcolor{color}{content}
+            // that need to apply the color to the content *after* the 
+            // style has been changed.
+            // In definitions, this is indicated with a parameter type 
+            // of 'auto*'
+
+            var explicitGroup = '';
+
+            if (info && info.params) {
+              var _iteratorNormalCompletion3 = true;
+              var _didIteratorError3 = false;
+              var _iteratorError3 = undefined;
+
+              try {
+                for (var _iterator3 = info.params[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+                  var param = _step3.value;
+
+                  // Parse an argument
+                  if (param.optional) {
+                    // If it's not present, return the default argument value
+                    var arg = this.scanOptionalArg(param.type); // args.push(arg ? arg : param.defaultValue); @todo defaultvalue
+
+                    args.push(arg);
+                  } else if (param.type.endsWith('*')) {
+                    explicitGroup = param.type.slice(0, -1);
+                  } else {
+                    // mandatoryParamsCount += 1;
+                    // If it's not present, scanArg returns null.
+                    // Add a placeholder instead.
+                    var _arg = this.scanArg(param.type);
+
+                    if (_arg && _arg.length === 1 && _arg[0].type === 'placeholder' && param.placeholder) {
+                      _arg[0].value = param.placeholder;
+                    }
+
+                    if (_arg) {
+                      args.push(_arg);
+                    } else if (param.placeholder) {
+                      var placeholder = new MathAtom(this.parseMode, 'placeholder', param.placeholder);
+                      placeholder.captureSelection = true;
+                      args.push([placeholder]);
+                    } else {
+                      args.push(this.placeholder());
+                    }
+
+                    if (param.type !== 'math' && typeof _arg === 'string') {
+                      argString += _arg;
+                    }
+                  }
+                }
+              } catch (err) {
+                _didIteratorError3 = true;
+                _iteratorError3 = err;
+              } finally {
+                try {
+                  if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+                    _iterator3.return();
+                  }
+                } finally {
+                  if (_didIteratorError3) {
+                    throw _iteratorError3;
+                  }
+                }
+              }
+            }
+
+            if (info && !info.infix) {
+              // Infix commands should be handled in scanImplicitGroup
+              // If we find an infix command here, it's a syntax error
+              // (second infix command in an implicit group) and should be ignored.
+              // Create the MathAtom.
+              // If a parse function is present, invoke it with the arguments,
+              // and pass the result to be appended by the constructor.
+              if (info.parse) {
+                var attributes = info.parse('\\' + token.value, args);
+
+                if (!attributes.type) {
+                  // No type provided -> the parse function will modify
+                  // the current style rather than create a new Atom.
+                  var savedMode = this.parseMode;
+
+                  if (attributes.mode) {
+                    // Change to 'text' (or 'math') mode if necessary
+                    this.parseMode = attributes.mode;
+                    delete attributes.mode;
+                  } // If an explicit group is expected, process it now
+
+
+                  if (explicitGroup) {
+                    // Create a temporary style
+                    var saveStyle = this.style;
+                    this.style = _objectSpread({}, this.style, attributes);
+                    result = this.scanArg(explicitGroup);
+                    this.style = saveStyle;
+                  } else {
+                    // Merge the new style info with the current style
+                    this.style = _objectSpread({}, this.style, attributes);
+                  }
+
+                  this.parseMode = savedMode;
+                } else {
+                  result = new MathAtom(this.parseMode, info.type, explicitGroup ? this.scanArg(explicitGroup) : null, _objectSpread({}, this.style, attributes));
+                }
+              } else {
+                var style = _objectSpread({}, this.style);
+
+                if (info.baseFontFamily) style.baseFontFamily = info.baseFontFamily;
+                result = new MathAtom(this.parseMode, info.type || 'mop', info.value || token.value, style);
+
+                if (info.skipBoundary) {
+                  result.skipBoundary = true;
+                }
+              }
+
+              if (result && !/^(llap|rlap|class|cssId)$/.test(token.value)) {
+                result.latex = '\\' + token.value;
+
+                if (argString
+                /*|| mandatoryParamsCount > 0*/
+                ) {
+                    result.latex += '{' + argString + '}';
+                  }
+
+                if (result.isFunction && this.smartFence) {
+                  // The atom was a function that may be followed by
+                  // an argument, like `\sin(`
+                  var smartFence = this.scanSmartFence();
+
+                  if (smartFence) {
+                    result = [result, smartFence];
+                  }
+                }
+              }
+            }
+
+            if (!info) {
+              // An unknown command
+              result = new MathAtom(this.parseMode, 'error', '\\' + token.value);
+              result.latex = '\\' + token.value;
+            }
+          }
+        }
+      } else if (token.type === 'literal') {
+        var _info = _definitions.default.getInfo(token.value, this.parseMode, this.macros);
+
+        if (_info) {
+          var _style = _objectSpread({}, this.style);
+
+          if (_info.baseFontFamily) _style.baseFontFamily = _info.baseFontFamily;
+          result = new MathAtom(this.parseMode, _info.type, _info.value || token.value, _style);
+
+          if (_info.isFunction) {
+            result.isFunction = true;
+          }
+        } else {
+          result = new MathAtom(this.parseMode, this.parseMode === 'math' ? 'mord' : '', token.value, this.style);
+        }
+
+        result.latex = _definitions.default.matchCodepoint(this.parseMode, token.value.codePointAt(0));
+
+        if (_info && _info.isFunction && this.smartFence) {
+          // The atom was a function that may be followed by
+          // an argument, like `f(`.
+          var _smartFence = this.scanSmartFence();
+
+          if (_smartFence) {
+            result = [result, _smartFence];
+          }
+        }
+      } else if (token.type === '#') {
+        // Parameter token in an implicit group (not as a parameter)
+        if (token.value === '?') {
+          // '#?' indicates that a placeholder should be used
+          result = this.placeholder();
+        } else if (this.args) {
+          result = this.args[token.value] || null;
+
+          if (Array.isArray(result) && result.length === 1) {
+            result = result[0];
+          } else if (Array.isArray(result)) {
+            var group = new MathAtom(this.parseMode, 'group');
+            group.body = result;
+            result = group;
+          } else {
+            // If there is no argument value specified, use a placeholder
+            result = this.placeholder();
+          }
+        }
+      } else {
+        console.warn('Unexpected token type "' + token.type + '", value ="' + token.value + '"');
+      }
+
+      return result;
+    }
+    /**
+     * Attempt to scan the macro name and return an atom list if successful.
+     * Otherwise, it wasn't a macro.
+     */
+
+  }, {
+    key: "scanMacro",
+    value: function scanMacro(macro) {
+      if (!this.macros || !this.macros[macro]) return null;
+      var args = {};
+      var def;
+      var argCount = 0;
+
+      if (typeof this.macros[macro] === 'string') {
+        def = this.macros[macro]; // Let's see if there are arguments in the definition.
+
+        if (/(^|[^\\])#1/.test(def)) argCount = 1;
+        if (/(^|[^\\])#2/.test(def)) argCount = 2;
+        if (/(^|[^\\])#3/.test(def)) argCount = 3;
+        if (/(^|[^\\])#4/.test(def)) argCount = 4;
+        if (/(^|[^\\])#5/.test(def)) argCount = 5;
+        if (/(^|[^\\])#6/.test(def)) argCount = 6;
+        if (/(^|[^\\])#7/.test(def)) argCount = 7;
+        if (/(^|[^\\])#8/.test(def)) argCount = 8;
+        if (/(^|[^\\])#9/.test(def)) argCount = 9;
+      } else {
+        def = this.macros[macro].def;
+        argCount = this.macros[macro].args || 0;
+      }
+
+      for (var i = 1; i <= argCount; i++) {
+        args[i] = this.scanArg();
+      } // Carry forward the placeholder argument, if any.
+
+
+      if (this.args && typeof this.args['?'] === 'string') {
+        args['?'] = this.args['?'];
+      } // Group the result of the macro expansion, and set the
+      // captureSelection attribute so that it is handled as an unbreakable
+      // unit
+
+
+      var atom = new MathAtom(this.parseMode, 'group', parseTokens(_lexer.default.tokenize(def), this.parseMode, args, this.macros));
+      atom.captureSelection = true;
+      atom.latex = '\\' + macro;
+      var argString = '';
+
+      for (var _i = 1; _i <= argCount; _i++) {
+        argString += '{';
+
+        if (Array.isArray(args[_i])) {
+          for (var j = 0; j < args[_i].length; j++) {
+            argString += args[_i][j].latex;
+          }
+        }
+
+        argString += '}';
+      }
+
+      atom.latex += argString ? argString : '';
+      return atom;
+    }
+    /**
+     * Make a MathAtom for the current token or token group and
+     * add it to the parser's current mathList
+     * @method module:core/parser#Parser#parseAtom
+     * @private
+     */
+
+  }, {
+    key: "parseAtom",
+    value: function parseAtom() {
+      var result = this.scanEnvironment() || this.scanModeShift() || this.scanModeSet() || this.scanGroup() || this.scanLeftRight();
+      if (!result && (this.parseSupSub() || this.parseLimits())) return true;
+      if (!result) result = this.scanToken(); // If we have an atom to add, push it at the end of the current math list
+      // We could have no atom for tokens that were skipped, a ' ' in mathmode
+      // for example
+
+      if (Array.isArray(result)) {
+        this.mathList = this.mathList.concat(result);
+      } else if (result) {
+        this.mathList.push(result);
+      }
+
+      return result !== null;
+    }
+  }]);
+
+  return Parser;
+}();
+/**
+ * Given an array of tokens returned by the lexer, return a corresponding
+ * math list (array of atoms).
+ * @param {object[]} tokens
+ * @param {string} [parseMode='math']
+ * @param {string[]} [args={}] - If there are any placeholder tokens, e.g.
+ * `#0`, `#1`, etc... they will be replaced by the value provided by `args`.
+ * @param {object} [macro={}] Dictionary defining macros
+ * @param {boolean} [smartFence=false] If true, promote plain fences, e.g. `(`,
+ * as `\left...\right` or `\mleft...\mright`
+ * @return {object[]} An array of MathAtom
+ * @method module:core/parser#parseTokens
+ * @private
+ */
+
+
+function parseTokens(tokens, parseMode, args, macros, smartFence) {
+  var mathlist = [];
+  var parser = new Parser(tokens, args, macros);
+  parser.parseMode = parseMode || 'math'; // other possible values: 'text', 'color', etc...
+
+  if (smartFence) parser.smartFence = true;
+
+  while (!parser.end()) {
+    mathlist = mathlist.concat(parser.scanImplicitGroup());
+  }
+
+  return mathlist;
+} // Export the public interface for this module
+
+
+var _default = {
+  Parser: Parser,
+  parseTokens: parseTokens
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/core/span.js b/dist/core/span.js
new file mode 100644
index 000000000..3f7018e69
--- /dev/null
+++ b/dist/core/span.js
@@ -0,0 +1,1372 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.makeSpan = makeSpan;
+exports.makeOrd = makeOrd;
+exports.makeInner = makeInner;
+exports.makeHlist = makeHlist;
+exports.makeVlist = makeVlist;
+exports.default = exports.Span = void 0;
+
+var _fontMetrics = _interopRequireDefault(require("./fontMetrics.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+/**
+ * Return a string made up of the concatenated arguments.
+ * Each arguments can be either a string, which is unchanged,
+ * or a number, which is converted to a string with at most 5 fractional digits.
+ *
+ * @param {(Array.<any>|string|number)} arg
+ * @return {string}
+ * @memberof module:core/span
+ * @private
+ */
+function toString(arg) {
+  var result = '';
+
+  if (typeof arg === 'number') {
+    result += Math.floor(1e2 * arg) / 1e2;
+  } else if (typeof arg === 'string') {
+    result += arg;
+  } else if (Array.isArray(arg)) {
+    var _iteratorNormalCompletion = true;
+    var _didIteratorError = false;
+    var _iteratorError = undefined;
+
+    try {
+      for (var _iterator = arg[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+        var elem = _step.value;
+        result += toString(elem);
+      }
+    } catch (err) {
+      _didIteratorError = true;
+      _iteratorError = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion && _iterator.return != null) {
+          _iterator.return();
+        }
+      } finally {
+        if (_didIteratorError) {
+          throw _iteratorError;
+        }
+      }
+    }
+  } else if (arg) {
+    result += arg.toString();
+  }
+
+  return result;
+} //----------------------------------------------------------------------------
+// SPAN
+//----------------------------------------------------------------------------
+
+/**
+ * A span is the most elementary element that can be rendered.
+ * It is composed of an optional body of text and an optional list
+ * of children (other spans). Each span can be decorated with
+ * CSS classes and style attributes.
+ *
+ * @param {string|Span|Span[]} content the items 'contained' by this node
+ * @param {string} classes list of classes attributes associated with this node
+ * @return {void}
+ * @class
+ * @memberof module:core/span
+ * @property {string} type - For example, `'command'`, `'mrel'`, etc...
+ * @property {string} classes - A string of space separated CSS classes
+ * associated with this element
+ * @property {string} cssID - A CSS ID assigned to this span (optional)
+ * @property {Span[]} children - An array, potentially empty, of spans which
+ * this span encloses
+ * @property {string} body - Content of this span. Can be empty.
+ * @property {Object.<string, any>} style - A set of key/value pairs specifying CSS properties
+ * associated with this element.
+ * @property {number} height - The measurement from baseline to top, in em.
+ * @property {number} depth - The measurement from baseline to bottom, in em.
+ * @private
+ */
+
+
+var Span =
+/*#__PURE__*/
+function () {
+  function Span(content, classes) {
+    _classCallCheck(this, Span);
+
+    // CLASSES
+    this.classes = classes || ''; // CONTENT
+
+    if (Array.isArray(content)) {
+      // Check if isArray first, since an array is also an object
+      // Flatten it (i.e. [[a1, a2], b1, b2] -> [a1, a2, b1, b2]
+      this.children = [].concat.apply([], content);
+    } else if (typeof content === 'string') {
+      this.body = content;
+    } else if (content && _typeof(content) === 'object') {
+      this.children = [content];
+    } // STYLE
+    // CSS style, as an array of key value pairs.
+    // Use this.setStyle() to modify it.
+
+
+    this.style = null; // Calculate the dimensions of this span based on its children
+
+    this.updateDimensions();
+  }
+  /**
+   * Update the dimensions of this node based on its children:
+   * - height: distance from bottom to top
+   * - depth: distance from bottom to baseline
+   * - maxFontSize: a size multiplier (typically set with commands such as \huge)
+   * @method module:core/span.Span#updateDimensions
+   * @private
+   */
+
+
+  _createClass(Span, [{
+    key: "updateDimensions",
+    value: function updateDimensions() {
+      var height = 0.0;
+      var depth = 0.0;
+      var maxFontSize = 1.0;
+
+      if (this.children) {
+        this.children.forEach(function (x) {
+          if (x.height > height) height = x.height;
+          if (x.depth > depth) depth = x.depth;
+          if (x.maxFontSize > maxFontSize) maxFontSize = x.maxFontSize;
+        });
+      }
+
+      this.height = height;
+      this.depth = depth;
+      this.maxFontSize = maxFontSize;
+    }
+  }, {
+    key: "selected",
+    value: function selected(isSelected) {
+      if (isSelected && !/ML__selected/.test(this.classes)) {
+        if (this.classes.length > 0) this.classes += ' ';
+        this.classes += 'ML__selected';
+      }
+
+      if (!isSelected && /ML__selected/.test(this.classes)) {
+        this.classes = this.classes.replace('ML__selected', '');
+      }
+
+      if (this.children) {
+        this.children.forEach(function (x) {
+          return x.selected(isSelected);
+        });
+      }
+    }
+    /**
+     * @param {object} style A style specification with the following
+     * (all optionals) properties, which use the TeX terminology:
+     *
+     * - fontFamily: cmr, cmss, cmtt, cmsy (symbols), cmex (large symbols),
+     *  ptm (times), phv (helvetica), pcr (courier)
+     * - fontSeries: m (medium), b (bold), bx (bold extended), sb (semi-bold), c (condensed)
+     * - fontShape:          italic, oblique, "roman": n (normal, upright), it, sl, sc
+     * - fontSize: 'size1', 'size2'...
+     * - color:
+     * - background:
+     */
+
+  }, {
+    key: "applyStyle",
+    value: function applyStyle(style) {
+      if (!style) return;
+
+      if (style.color) {
+        if (style.color !== 'none') {
+          this.setStyle('color', style.color);
+        } else {
+          this.setStyle('color', '');
+        }
+      }
+
+      if (style.backgroundColor) {
+        if (style.backgroundColor !== 'none') {
+          this.setStyle('background-color', style.backgroundColor);
+        } else {
+          this.setStyle('background-color', '');
+        }
+      } //
+      // 1. Add any custom style classes
+      //
+
+
+      if (style.cssClass) {
+        this.classes += ' ' + style.cssClass;
+      } // If the body is null (for example for a line), we're done.
+
+
+      if (!this.body) return; // Determine the appropriate font (and font-related classes)
+      //
+      // 2. Determine the font family (i.e. 'amsrm', 'mathit', 'mathcal', etc...)
+      //
+
+      var fontFamily = style.fontFamily;
+
+      if (fontFamily === 'math' && style.fontShape === 'n') {
+        // 'math' is italic by default. If we need upright, switch to main.
+        fontFamily = 'cmr';
+      }
+
+      var fontName = 'Main-Regular'; // Default font
+
+      if (fontFamily) {
+        fontName = getFontName(this.body, fontFamily);
+      } //
+      // 3. Determine the classes necessary to represent the series and shape
+      //
+
+
+      if (style.fontShape) {
+        this.classes += ' ' + ({
+          'it': 'ML__it',
+          'sl': 'ML__shape_sl',
+          // slanted
+          'sc': 'ML__shape_sc',
+          // small caps
+          'ol': 'ML__shape_ol' // outline
+
+        }[style.fontShape] || '');
+      }
+
+      if (style.fontSeries) {
+        var m = style.fontSeries.match(/(.?[lbm])?(.?[cx])?/);
+
+        if (m) {
+          this.classes += ' ' + ({
+            'ul': 'ML__series_ul',
+            'el': 'ML__series_el',
+            'l': 'ML__series_l',
+            'sl': 'ML__series_sl',
+            'm': '',
+            // medium (default)
+            'sb': 'ML__series_sb',
+            'b': 'ML__bold',
+            'eb': 'ML__series_eb',
+            'ub': 'ML__series_ub'
+          }[m[1] || ''] || '');
+          this.classes += ' ' + ({
+            'uc': 'ML__series_uc',
+            'ec': 'ML__series_ec',
+            'c': 'ML__series_c',
+            'sc': 'ML__series_sc',
+            'n': '',
+            // normal (default)
+            'sx': 'ML__series_sx',
+            'x': 'ML__series_x',
+            'ex': 'ML__series_ex',
+            'ux': 'ML__series_ux'
+          }[m[2] || ''] || '');
+        }
+      }
+
+      if (FONT_CLASS[fontFamily]) {
+        this.classes += ' ' + FONT_CLASS[fontFamily];
+      } else if (fontFamily) {
+        // Not a well-known family. Use a style.
+        this.setStyle('font-family', fontFamily);
+      } //
+      // 3. Get the metrics information
+      //
+
+
+      if (this.body && this.body.length > 0 && fontName) {
+        this.height = 0.0;
+        this.depth = 0.0;
+        this.maxFontSize = {
+          size1: 0.5,
+          size2: 0.7,
+          size3: 0.8,
+          size4: 0.9,
+          size5: 1.0,
+          size6: 1.2,
+          size7: 1.44,
+          size8: 1.73,
+          size9: 2.07,
+          size10: 2.49
+        }[style.fontSize] || 1.0;
+        this.skew = 0.0;
+        this.italic = 0.0;
+
+        for (var i = 0; i < this.body.length; i++) {
+          var metrics = _fontMetrics.default.getCharacterMetrics(this.body.charAt(i), fontName); // If we were able to get metrics info for this character, store it.
+
+
+          if (metrics) {
+            this.height = Math.max(this.height, metrics.height);
+            this.depth = Math.max(this.depth, metrics.depth);
+            this.skew = metrics.skew;
+            this.italic = metrics.italic;
+          }
+        }
+      }
+    }
+    /**
+     * Set the value of a CSS property associated with this span.
+     * For example, setStyle('border-right', 5.6, 'em');
+     *
+     * @param {string} prop the CSS property to set
+     * @param {...(string|number)} value a series of strings and numbers that will be concatenated.
+     * @return {string}
+     * @method module:core/span.Span#setStyle
+     * @private
+     */
+
+  }, {
+    key: "setStyle",
+    value: function setStyle(prop) {
+      for (var _len = arguments.length, value = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+        value[_key - 1] = arguments[_key];
+      }
+
+      var v = toString(value);
+
+      if (v.length > 0) {
+        if (!this.style) this.style = {};
+        this.style[prop] = v;
+      }
+    }
+  }, {
+    key: "setTop",
+    value: function setTop(top) {
+      if (top && top !== 0) {
+        if (!this.style) this.style = {};
+        this.style['top'] = toString(top) + 'em';
+        this.height -= top;
+        this.depth += top;
+      }
+    }
+    /**
+     * 
+     * @param {number} left 
+     */
+
+  }, {
+    key: "setLeft",
+    value: function setLeft(left) {
+      if (left && left !== 0) {
+        if (!this.style) this.style = {};
+        this.style['margin-left'] = toString(left) + 'em';
+      }
+    }
+    /**
+     * 
+     * @param {number} right 
+     */
+
+  }, {
+    key: "setRight",
+    value: function setRight(right) {
+      if (right && right !== 0) {
+        if (!this.style) this.style = {};
+        this.style['margin-right'] = toString(right) + 'em';
+      }
+    }
+  }, {
+    key: "setWidth",
+    value: function setWidth(width) {
+      if (width && width !== 0) {
+        if (!this.style) this.style = {};
+        this.style['width'] = toString(width) + 'em';
+      }
+    }
+  }, {
+    key: "addMarginRight",
+    value: function addMarginRight(margin) {
+      if (margin && margin !== 0) {
+        if (!this.style && !/qquad|quad|enspace|thickspace|mediumspace|thinspace|negativethinspace/.test(this.classes)) {
+          // Attempt to use a class instead of an explicit margin
+          var cls = {
+            '2': 'qquad',
+            '1': 'quad',
+            '.5': 'enspace',
+            '0.277778': 'thickspace',
+            '0.222222': 'mediumspace',
+            '0.166667': 'thinspace',
+            '-0.166667': 'negativethinspace'
+          }[margin.toString()];
+
+          if (cls) {
+            this.classes += ' rspace ' + cls;
+            return;
+          }
+        }
+
+        if (!this.style) this.style = {};
+        var currentMargin = parseFloat(this.style['margin-right'] || '0');
+        this.style['margin-right'] = toString(currentMargin + margin) + 'em';
+      }
+    }
+    /**
+     * Generate the HTML markup to represent this span.
+     *
+     * @param {number} [hskip=0] - Space (in mu, 1/18em) to leave on the left side
+     * of the span. Implemented as a Unicode character if possible, a margin-left otherwise.
+     * @param {number} [hscale=1.0] - If a value is provided, the margins are scaled by
+     * this factor.
+     * @return {string} HTML markup
+     * @method module:core/span.Span#toMarkup
+     * @private
+     */
+
+  }, {
+    key: "toMarkup",
+    value: function toMarkup(hskip, hscale) {
+      hskip = hskip || 0;
+      hscale = hscale || 1.0;
+      var result = '';
+      var body = this.body || '';
+
+      if (this.children) {
+        var previousType = 'none';
+        var _iteratorNormalCompletion2 = true;
+        var _didIteratorError2 = false;
+        var _iteratorError2 = undefined;
+
+        try {
+          for (var _iterator2 = this.children[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+            var child = _step2.value;
+            var spacing = 0;
+
+            if (previousType) {
+              var type = child.type;
+
+              if (type) {
+                if (type === 'textord') type = 'mord';
+                if (type === 'first') type = 'none';
+
+                if (child.isTight) {
+                  spacing = INTER_ATOM_TIGHT_SPACING[previousType + '+' + type] || 0;
+                } else {
+                  spacing = INTER_ATOM_SPACING[previousType + '+' + type] || 0;
+                }
+
+                spacing = Math.floor(hscale * spacing);
+              }
+            }
+
+            body += child.toMarkup(spacing, hscale);
+            previousType = lastSpanType(child);
+          }
+        } catch (err) {
+          _didIteratorError2 = true;
+          _iteratorError2 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+              _iterator2.return();
+            }
+          } finally {
+            if (_didIteratorError2) {
+              throw _iteratorError2;
+            }
+          }
+        }
+      } // Collapse 'empty' spans
+
+
+      if ((body === "\u200B" || !body) && (!this.classes || this.classes === 'ML__selected')) {
+        result = '';
+      } else {
+        // Note: We can't omit the tag, even if it has no class and no style,
+        // as some layouts (vlist) depends on the presence of the tag to function
+        result = '<span';
+
+        if (this.cssId) {
+          result += ' id="' + this.cssId + '" ';
+        }
+
+        if (this.svgOverlay) {
+          this.setStyle('position', 'relative');
+          this.setStyle('height', this.height + this.depth, 'em');
+          this.setStyle('vertical-align', -this.depth, 'em');
+        }
+
+        if (this.attributes) {
+          for (var attribute in this.attributes) {
+            if (this.attributes.hasOwnProperty(attribute)) {
+              result += ' ' + attribute + '="' + this.attributes[attribute] + '"';
+            }
+          }
+        }
+
+        var classes = this.classes.split(' '); // Add the type (mbin, mrel, etc...) if specified
+
+        if (this.type) {
+          if (/command|placeholder|error/.test(this.type)) {
+            classes.push({
+              'command': 'ML__command',
+              'placeholder': 'ML__placeholder',
+              'error': 'ML__error'
+            }[this.type]);
+          }
+
+          if (this.caret && this.type === 'command') {
+            classes.push('ML__command-caret');
+          }
+        } // Remove duplicate and empty classes
+
+
+        var classList = '';
+
+        if (classes.length > 1) {
+          classList = classes.filter(function (x, e, a) {
+            return x.length > 0 && a.indexOf(x) === e;
+          }).join(' ');
+        } else {
+          classList = classes[0];
+        }
+
+        if (classList.length > 0) {
+          result += ' class="' + classList + '"';
+        } // If a `hskip` value was provided, add it to the margin-left
+
+
+        if (hskip) {
+          if (this.style && this.style['margin-left']) {
+            // There was already a margin, add to it
+            this.style['margin-left'] = toString(parseFloat(this.style['margin-left']) + hskip / 18) + 'em';
+          } else {
+            // No margin yet. Can we encode it as a Unicode space?
+            if (hskip < 0 && NEGATIVE_SPACING_CHARACTER[-hskip]) {
+              body = NEGATIVE_SPACING_CHARACTER[-hskip] + body;
+            } else if (SPACING_CHARACTER[hskip]) {
+              body = SPACING_CHARACTER[hskip] + body;
+            } else {
+              if (!this.style) this.style = {};
+              this.style['margin-left'] = toString(hskip / 18) + 'em';
+            }
+          }
+        }
+
+        if (this.style) {
+          var styleString = '';
+          var isSelected = /ML__selected/.test(this.classes);
+
+          for (var style in this.style) {
+            if (this.style.hasOwnProperty(style)) {
+              // Render the style property, except the background
+              // of selected spans
+              if (style !== 'background-color' || !isSelected) {
+                styleString += style + ':' + this.style[style] + ';';
+              }
+            }
+          }
+
+          if (styleString.length > 0) {
+            result += ' style="' + styleString + '"';
+          }
+        }
+
+        result += '>'; // If there is some SVG markup associated with this span,
+        // include it now
+
+        if (this.svgOverlay) {
+          result += '<span style="';
+          result += 'display: inline-block;';
+          result += 'height:' + (this.height + this.depth) + 'em;';
+          result += 'vertical-align:' + this.depth + 'em;';
+          result += '">';
+          result += body;
+          result += '</span>';
+          result += '<svg '; // result += 'style="position:absolute;left:0;top:0;width:100%;height:100%;z-index:2;';
+
+          result += 'style="position:absolute;';
+          result += 'overflow:overlay;';
+          result += 'height:' + (this.height + this.depth) + 'em;';
+          result += 'transform:translateY(-' + Math.round(_fontMetrics.default.toPx(this.depth, 'em') + _fontMetrics.default.toPx(this.style.padding)) + 'px);';
+
+          if (this.style && this.style.padding) {
+            result += 'top:' + this.style.padding + ';';
+            result += 'left:' + this.style.padding + ';';
+            result += 'width:calc(100% - 2 * ' + this.style.padding + ' );';
+          } else {
+            result += 'top:0;';
+            result += 'left:0;';
+            result += 'width:100%;';
+          }
+
+          result += 'z-index:2;';
+          result += '"';
+
+          if (this.svgStyle) {
+            result += ' style="' + this.svgStyle + '"';
+          }
+
+          result += '>';
+          result += this.svgOverlay;
+          result += '</svg>';
+        } else {
+          result += body;
+        }
+
+        result = result + '</span>';
+      }
+
+      if (this.caret && this.type !== 'command') {
+        if (this.caret === 'text') {
+          result = result + '<span class="ML__text-caret"></span>';
+        } else {
+          result = result + '<span class="ML__caret"></span>';
+        }
+      }
+
+      return result;
+    }
+    /**
+     * Can this span be coalesced with 'span'?
+     * This is used to 'coalesce' (i.e. group together) a series of spans that are
+     * identical except for their value, and to avoid generating redundant spans.
+     * That is: '12' ->
+     *      "<span class='mord mathrm'>12</span>"
+     * rather than:
+     *      "<span class='mord mathrm'>1</span><span class='mord mathrm'>2</span>"
+     * @param {Span} span
+     * @return {boolean}
+     * @method module:core/span.Span#tryCoalesceWith
+     * @private
+     */
+
+  }, {
+    key: "tryCoalesceWith",
+    value: function tryCoalesceWith(span) {
+      if (this.tag !== span.tag) return false;
+      if (this.type !== span.type) return false; // Don't coalesce consecutive errors or placeholders
+
+      if (this.type === 'error' || this.type === 'placeholder' || this.type === 'command') return false; // If this span or the candidate span have children, we can't
+      // coalesce them, but we'll try to coalesce their children
+
+      var hasChildren = this.children && this.children.length > 0;
+      var spanHasChildren = span.children && span.children.length > 0;
+      if (hasChildren || spanHasChildren) return false; // If they have a different number of styles, can't coalesce
+
+      var thisStyleCount = this.style ? this.style.length : 0;
+      var spanStyleCount = span.style ? span.style.length : 0;
+      if (thisStyleCount !== spanStyleCount) return false; // For the purpose of our comparison,
+      // any 'empty' classes (whitespace)
+
+      var classes = this.classes.trim().replace(/\s+/g, ' ').split(' ');
+      var spanClasses = span.classes.trim().replace(/\s+/g, ' ').split(' '); // If they have a different number of classes, can't coalesce
+
+      if (classes.length !== spanClasses.length) return false; // OK, let's do the more expensive comparison now.
+      // If they have different classes, can't coalesce
+
+      classes.sort();
+      spanClasses.sort();
+
+      for (var i = 0; i < classes.length; i++) {
+        // Don't coalesce vertical separators
+        // (used in column formating with {l||r} for example
+        if (classes[i] === 'vertical-separator') return false;
+        if (classes[i] !== spanClasses[i]) return false;
+      } // If the styles are different, can't coalesce
+
+
+      if (this.style && span.style) {
+        for (var style in this.style) {
+          if (this.style.hasOwnProperty(style) && span.style.hasOwnProperty(style)) {
+            if (this.style[style] !== span.style[style]) return false;
+          }
+        }
+      } // OK, the attributes of those spans are compatible.
+      // Merge span into this
+
+
+      this.body += span.body;
+      this.height = Math.max(this.height, span.height);
+      this.depth = Math.max(this.depth, span.depth);
+      this.maxFontSize = Math.max(this.maxFontSize, span.maxFontSize); // The italic correction for the coalesced spans is the
+      // italic correction of the last span.
+
+      this.italic = span.italic;
+      return true;
+    }
+  }]);
+
+  return Span;
+}();
+/**
+ * Return HTML markup representing this span, its style, classes and
+ * children.
+ *
+ * @param {number} [hskip] amount of whitespace to insert before this element
+ * This is used to adjust the inter-spacing between spans of different types,
+ * e.g. 'bin' and 'rel', according to the TeX rules.
+ * @alias module:core/span.INTER_ATOM_SPACING
+ * @private
+ */
+
+
+exports.Span = Span;
+var INTER_ATOM_SPACING = {
+  'mord+mop': 3,
+  'mord+mbin': 4,
+  'mord+mrel': 5,
+  'mord+minner': 3,
+  'mop+mord': 3,
+  'mop+mop': 3,
+  'mop+mbin': 5,
+  'mop+minner': 3,
+  'mbin+mord': 4,
+  'mbin+mop': 4,
+  'mbin+mopen': 4,
+  'mbin+minner': 4,
+  'mrel+mord': 5,
+  'mrel+mop': 5,
+  'mrel+mopen': 5,
+  'mrel+minner': 5,
+  'mclose+mop': 3,
+  'mclose+mbin': 4,
+  'mclose+mrel': 5,
+  'mclose+minner': 3,
+  'mpunct+mord': 3,
+  'mpunct+mop': 3,
+  'mpunct+mbin': 4,
+  'mpunct+mrel': 5,
+  'mpunct+mopen': 3,
+  'mpunct+mpunct': 3,
+  'mpunct+minner': 3 // See https://www.w3.org/TR/2000/WD-MathML2-20000328/chapter6.html 
+  // 6.1.4 Non-Marking Characters
+
+};
+var SPACING_CHARACTER = ["\u200B", // 0/18 ZERO-WIDTH SPACE
+"\u200A", // 1/18 HAIR SPACE
+"\u200A\u200A", // 2/18
+"\u2009", // 3/18 THIN SPACE
+"\u205F", // 4/18 MEDIUM MATHEMATICAL SPACE
+"\u205F\u200A", // 5/18 MEDIUM MATHEMATICAL SPACE + HAIR SPACE
+"\u2004", // 6/18 THREE-PER-EM SPACE   1/3em
+'', '', "\u2002" // 9/18 EN SPACE 1/2em = 9/18
+];
+var NEGATIVE_SPACING_CHARACTER = ['', "\u200A\u2063", // -1/18
+'', "\u2009\u2063", // -3/18
+"\u205F\u2063", // -4/18
+"\u2005\u2063" // -5/18
+];
+/**
+ *
+ * @alias module:core/span.INTER_ATOM_TIGHT_SPACING
+ * @private
+ */
+
+var INTER_ATOM_TIGHT_SPACING = {
+  'mord+mop': 3,
+  'mop+mord': 3,
+  'mop+mop': 3,
+  'mclose+mop': 3,
+  'minner+mop': 3
+};
+
+function lastSpanType(span) {
+  var result = span.type;
+  if (result === 'first') return 'none';
+  if (result === 'textord') return 'mord';
+  return result;
+}
+/**
+ * Attempts to coalesce (merge) spans, for example consecutive text spans.
+ * Return a new tree with coalesced spans.
+ *
+ * @param {Span[]} spans
+ * @return {Span[]} coalesced tree
+ * @memberof module:core/span
+ * @private
+ */
+
+
+function coalesce(spans) {
+  if (!spans || spans.length === 0) return [];
+  spans[0].children = coalesce(spans[0].children);
+  var result = [spans[0]];
+
+  for (var i = 1; i < spans.length; i++) {
+    if (!result[result.length - 1].tryCoalesceWith(spans[i])) {
+      spans[i].children = coalesce(spans[i].children);
+      result.push(spans[i]);
+    }
+  }
+
+  return result;
+} //----------------------------------------------------------------------------
+// UTILITY FUNCTIONS
+//----------------------------------------------------------------------------
+
+
+function height(spans) {
+  if (!spans) return 0;
+
+  if (Array.isArray(spans)) {
+    return spans.reduce(function (acc, x) {
+      return Math.max(acc, x.height);
+    }, 0);
+  }
+
+  return spans.height;
+}
+
+function depth(spans) {
+  if (!spans) return 0;
+
+  if (Array.isArray(spans)) {
+    return spans.reduce(function (acc, x) {
+      return Math.max(acc, x.depth);
+    }, 0);
+  }
+
+  return spans.depth;
+}
+
+function skew(spans) {
+  if (!spans) return 0;
+
+  if (Array.isArray(spans)) {
+    var result = 0;
+    var _iteratorNormalCompletion3 = true;
+    var _didIteratorError3 = false;
+    var _iteratorError3 = undefined;
+
+    try {
+      for (var _iterator3 = spans[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+        var span = _step3.value;
+        result += span.skew || 0;
+      }
+    } catch (err) {
+      _didIteratorError3 = true;
+      _iteratorError3 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+          _iterator3.return();
+        }
+      } finally {
+        if (_didIteratorError3) {
+          throw _iteratorError3;
+        }
+      }
+    }
+
+    return result;
+  }
+
+  return spans.skew;
+}
+
+function italic(spans) {
+  if (!spans) return 0;
+
+  if (Array.isArray(spans)) {
+    return spans[spans.length - 1].italic;
+  }
+
+  return spans.italic;
+}
+/**
+ * Make an element made of a sequence of children with classes
+ * @param {(string|Span|Span[])} content the items 'contained' by this node
+ * @param {string} classes list of classes attributes associated with this node
+ * @memberof module:core/span
+ * @private
+ */
+
+
+function makeSpan(content, classes) {
+  if (Array.isArray(content)) {
+    var c = [];
+    var _iteratorNormalCompletion4 = true;
+    var _didIteratorError4 = false;
+    var _iteratorError4 = undefined;
+
+    try {
+      for (var _iterator4 = content[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
+        var s = _step4.value;
+        if (s) c.push(s);
+      }
+    } catch (err) {
+      _didIteratorError4 = true;
+      _iteratorError4 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
+          _iterator4.return();
+        }
+      } finally {
+        if (_didIteratorError4) {
+          throw _iteratorError4;
+        }
+      }
+    }
+
+    if (c.length === 1) {
+      return makeSpan(c[0], classes);
+    }
+  }
+
+  return new Span(content, classes);
+}
+/**
+ *
+ * @param {string} fontFamily
+ * @param {string} symbol
+ * @param {string} classes
+ * @memberof module:core/span
+ * @private
+ */
+
+
+function makeSymbol(fontFamily, symbol, classes) {
+  var result = new Span(symbol, classes);
+
+  var metrics = _fontMetrics.default.getCharacterMetrics(symbol, fontFamily);
+
+  result.height = metrics.height;
+  result.depth = metrics.depth;
+  result.skew = metrics.skew;
+  result.italic = metrics.italic;
+  result.setRight(result.italic);
+  return result;
+}
+/**
+ * Makes an element placed in each of the vlist elements to ensure that each
+ * element has the same max font size. To do this, we create a zero-width space
+ * with the correct font size.
+//  * Note: without this, even when fontSize = 0, the fraction bar is no
+//  * longer positioned correctly
+ * @return {Span}
+ * @memberof module:core/span
+ * @private
+ */
+
+
+function makeFontSizer(context, fontSize) {
+  var fontSizeAdjustment = fontSize ? fontSize / context.mathstyle.sizeMultiplier : 0;
+  var fontSizeInner = new Span("\u200B"); // ZERO WIDTH SPACE
+
+  if (fontSizeAdjustment !== 1) {
+    fontSizeInner.setStyle('font-size', fontSizeAdjustment, fontSizeAdjustment > 0 ? 'em' : '');
+    fontSizeInner.attributes = {
+      "aria-hidden": true
+    };
+  }
+
+  if (context.size !== 'size5') {
+    return new Span(fontSizeInner, 'fontsize-ensurer reset-' + context.size + ' size5');
+  }
+
+  return fontSizeAdjustment !== 0 ? fontSizeInner : null;
+}
+/**
+ *
+ * @param {string} type One of 'mbin', 'mop', 'mord', 'mrel' 'mclose',
+ * 'mpunct', 'minner'
+ * @param {string|Span[]} content A string or an array of other Spans
+ * @param {string} classes CSS classes decorating this span
+ * See https://tex.stackexchange.com/questions/81752/
+ * for a thorough description of the TeXt atom type and their relevance to
+ * proper kerning.
+ * @memberof module:core/span
+ * @private
+ */
+
+
+function makeSpanOfType(type, content, classes) {
+  var result = makeSpan(content, classes);
+  result.type = type;
+  return result;
+}
+
+function makeOp(content, classes) {
+  return makeSpanOfType('mop', content, classes);
+}
+
+function makeOrd(content, classes) {
+  return makeSpanOfType('mord', content, classes);
+}
+
+function makeRel(content, classes) {
+  return makeSpanOfType('mrel', content, classes);
+}
+
+function makeClose(content, classes) {
+  return makeSpanOfType('mclose', content, classes);
+}
+
+function makeOpen(content, classes) {
+  return makeSpanOfType('mopen', content, classes);
+}
+
+function makeInner(content, classes) {
+  return makeSpanOfType('minner', content, classes);
+}
+
+function makePunct(content, classes) {
+  return makeSpanOfType('mpunct', content, classes);
+}
+
+function makeStyleWrap(type, children, fromStyle, toStyle, classes) {
+  classes = classes || '';
+  classes += ' style-wrap ';
+  var result = makeHlist(children, classes + fromStyle.adjustTo(toStyle));
+  result.type = type;
+  var multiplier = toStyle.sizeMultiplier / fromStyle.sizeMultiplier;
+  result.height *= multiplier;
+  result.depth *= multiplier;
+  result.maxFontSize = toStyle.sizeMultiplier;
+  return result;
+}
+/**
+ * Add some SVG markup to be overlaid on top of the span
+ *
+ * @param {Span} body
+ * @param {string} svgMarkup
+ */
+
+
+function makeSVG(body, svgMarkup, svgStyle) {
+  body.svgOverlay = svgMarkup;
+  body.svgStyle = svgStyle;
+  return body;
+}
+/**
+ *
+ * @param {Span|Span[]} spans
+ * @param {string} classes
+ * @memberof module:core/span
+ * @private
+ */
+
+
+function makeHlist(spans, classes) {
+  if (!classes || classes.length === 0) {
+    // No decorations...
+    if (spans instanceof Span) {
+      // A single span, use it as the output
+      return spans;
+    } else if (Array.isArray(spans) && spans.length === 1) {
+      // An array, with a single span, use the single span as the output
+      return spans[0];
+    }
+  }
+
+  var result = new Span(spans, classes);
+  var multiplier = 1.0;
+
+  if (spans instanceof Span) {
+    multiplier = spans.maxFontSize;
+  } else {
+    multiplier = spans.reduce(function (acc, x) {
+      return Math.max(acc, x.maxFontSize);
+    }, 0);
+  }
+
+  result.height *= multiplier;
+  result.depth *= multiplier;
+  return result;
+}
+/**
+ * Create a new span of type `vlist`, a set of vertically stacked items
+ * @param {Context} context
+ * @param {Array.<(number|Span)>} elements
+ * An array of Span and integer. The integer can be either some kerning information
+ * or the value of an individual shift of the preceding child if in 'individualShift' mode
+ * @param {string} pos The method that will be used to position the elements in the vlist.
+ *
+ * One of:
+ * - `"individualShift"`: each child must be followed by a number indicating how much to shift it (i.e. moved downwards)
+ * - `"top"`: posData specifies the topmost point of the vlist (>0 move up)
+ * - `"bottom"`: posData specifies the bottommost point of the vlist (>0 move down)
+ * - `"shift"`: the baseline of the vlist will be positioned posData away from the baseline
+ * of the first child. (>0 moves down)
+ * @param {number} posData
+ * @memberof module:core/span
+ * @private
+ */
+
+
+function makeVlist(context, elements, pos, posData) {
+  var listDepth = 0;
+  var currPos = 0;
+  pos = pos || 'shift';
+  posData = posData || 0; // Normalize the elements so that they're all either a number or
+  // a single span. If a child is an array of spans,
+  // wrap it in a span
+
+  for (var i = 0; i < elements.length; i++) {
+    if (Array.isArray(elements[i])) {
+      if (elements[i].length === 1) {
+        // If that's an array made up of a single span, use that span
+        elements[i] = elements[i][0];
+      } else {
+        // Otherwise, wrap it in a span
+        elements[i] = makeSpan(elements[i]);
+      }
+    }
+  }
+
+  if (pos === 'shift') {
+    listDepth = -elements[0].depth - posData;
+  } else if (pos === 'bottom') {
+    listDepth = -posData;
+  } else if (pos === 'top') {
+    var bottom = posData;
+    var _iteratorNormalCompletion5 = true;
+    var _didIteratorError5 = false;
+    var _iteratorError5 = undefined;
+
+    try {
+      for (var _iterator5 = elements[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
+        var element = _step5.value;
+
+        if (element instanceof Span) {
+          // It's a Span, use the dimension data
+          bottom -= element.height + element.depth;
+        } else {
+          // It's a kern adjustment
+          bottom -= element;
+        }
+      }
+    } catch (err) {
+      _didIteratorError5 = true;
+      _iteratorError5 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
+          _iterator5.return();
+        }
+      } finally {
+        if (_didIteratorError5) {
+          throw _iteratorError5;
+        }
+      }
+    }
+
+    listDepth = bottom;
+  } else if (pos === 'individualShift') {
+    // Individual adjustment to each elements.
+    // The elements list is made up of a Span followed
+    // by a shift adjustment as an integer
+    var originalElements = elements;
+    elements = [originalElements[0]]; // Add in kerns to the list of elements to get each element to be
+    // shifted to the correct specified shift
+
+    listDepth = -originalElements[1] - originalElements[0].depth;
+    currPos = listDepth;
+
+    for (var _i = 2; _i < originalElements.length; _i += 2) {
+      var diff = -originalElements[_i + 1] - currPos - originalElements[_i].depth;
+      currPos = currPos + diff;
+      var kern = diff - (originalElements[_i - 2].height + originalElements[_i - 2].depth);
+      elements.push(kern);
+      elements.push(originalElements[_i]);
+    }
+  } else {
+    console.assert(false, 'makeVList with unknown method: "' + pos + '"');
+  } // Make the fontSizer
+
+
+  var maxFontSize = 1.0;
+  var _iteratorNormalCompletion6 = true;
+  var _didIteratorError6 = false;
+  var _iteratorError6 = undefined;
+
+  try {
+    for (var _iterator6 = elements[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
+      var _element = _step6.value;
+
+      if (_element instanceof Span) {
+        maxFontSize = Math.max(maxFontSize, _element.maxFontSize);
+      }
+    }
+  } catch (err) {
+    _didIteratorError6 = true;
+    _iteratorError6 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
+        _iterator6.return();
+      }
+    } finally {
+      if (_didIteratorError6) {
+        throw _iteratorError6;
+      }
+    }
+  }
+
+  var fontSizer = makeFontSizer(context, maxFontSize);
+  var newElements = [];
+  currPos = listDepth;
+  var _iteratorNormalCompletion7 = true;
+  var _didIteratorError7 = false;
+  var _iteratorError7 = undefined;
+
+  try {
+    for (var _iterator7 = elements[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
+      var _element2 = _step7.value;
+
+      if (typeof _element2 === 'number') {
+        // It's a kern adjustment
+        currPos += _element2;
+      } else {
+        var wrap = makeSpan([fontSizer, _element2]);
+        wrap.setTop(-_element2.depth - currPos);
+        newElements.push(wrap);
+        currPos += _element2.height + _element2.depth;
+      }
+    }
+  } catch (err) {
+    _didIteratorError7 = true;
+    _iteratorError7 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
+        _iterator7.return();
+      }
+    } finally {
+      if (_didIteratorError7) {
+        throw _iteratorError7;
+      }
+    }
+  }
+
+  var result = makeSpan(newElements, 'vlist'); // Fix the final height and depth, in case there were kerns at the ends
+  // since makeSpan won't take that into account.
+
+  result.depth = Math.max(listDepth, depth(result) || 0);
+  result.height = Math.max(-currPos, height(result) || 0);
+  return result;
+} // /**
+//  * 
+//  * @param {Span|Span[]} base 
+//  * @param {number} strutHeight 
+//  * @param {number} strutDepth 
+//  */
+// function makeStrut(base, strutHeight, strutDepth) {
+//     return [base];
+//     const topStrut = makeSpan(null, 'ML__strut');
+//     topStrut.height = strutHeight || 0;
+//     topStrut.depth = 0;
+//     topStrut.setStyle('height', strutHeight, 'em');
+//     const bottomStrut = makeSpan(null, 'ML__strut--bottom');
+//     bottomStrut.height = strutHeight || 0;
+//     bottomStrut.depth = strutDepth || 0;
+//     bottomStrut.setStyle('height', strutHeight + strutDepth, 'em');
+//     if (strutDepth) {
+//         bottomStrut.setStyle('vertical-align', -strutDepth, 'em');
+//     }
+//     if (Array.isArray(base)) {
+//         base.unshift(topStrut);
+//         base.unshift(bottomStrut);
+//         return base;
+//     }
+//     return makeOrd([topStrut, bottomStrut, base]);
+// }
+//----------------------------------------------------------------------------
+// FONTS
+//----------------------------------------------------------------------------
+// Map an abstract 'fontFamily' to an actual font name
+
+
+var FONT_NAME = {
+  'ams': 'AMS-Regular',
+  'bb': 'AMS-Regular',
+  'cal': 'Caligraphic-Regular',
+  'frak': 'Fraktur-Regular',
+  'scr': 'Script-Regular',
+  'cmr': 'Main-Regular',
+  'cmss': 'SansSerif-Regular',
+  'cmtt': 'Typewriter-Regular',
+  'math': 'Math-Regular',
+  'mainit': 'Main-Italic'
+};
+var FONT_CLASS = {
+  'ams': 'ML__ams',
+  'bb': 'ML__bb',
+  'cal': 'ML__cal',
+  'frak': 'ML__frak',
+  'scr': 'ML__script',
+  'cmr': 'ML__mathrm',
+  'cmss': 'ML__sans',
+  'cmtt': 'ML__tt',
+  'math': 'ML__mathit',
+  'mainit': 'ML__mainit'
+  /**
+   * Given a font family ('frak', 'math'...) return a corresponding
+   * font name. If the font does not support the specified symbol
+   * return an alternate font or null if none could be determined.
+   * @param {(string|Span[])} symbol the character for which we're seeking the font
+   * @param {string} fontFamily such as 'mathbf', 'mathfrak', etc...
+   * @return {string} a font name
+   * @memberof module:mathAtom
+   * @private
+   */
+
+};
+
+function getFontName(symbol, fontFamily) {
+  // If this is not a single char, just do a simple fontFamily -> fontName mapping
+  if (typeof symbol !== 'string' || symbol.length > 1 || symbol === "\u200B") {
+    return FONT_NAME[fontFamily];
+  } // This is a single character. Do some remapping as necessary.
+  // If symbol is not in the repertoire of the font,
+  // return null.
+
+
+  if (fontFamily === 'bb' || fontFamily === 'scr') {
+    // These fonts only support [A-Z ]
+    if (!/^[A-Z ]$/.test(symbol)) return null;
+  } else if (fontFamily === 'cal') {
+    // Only supports uppercase latin and digits
+    if (!/^[0-9A-Z ]$/.test(symbol)) return null;
+  } else if (fontFamily === 'frak') {
+    if (!/^[0-9A-Za-z ]$|^[!"#$%&'()*+,\-./:;=?[]^’‘]$/.test(symbol)) {
+      return null;
+    }
+  } else if (fontFamily === 'cmtt' || fontFamily === 'cmss') {
+    if (!/^[0-9A-Za-z ]$|^[!"&'()*+,\-./:;=?@[]^_~\u0131\u0237\u0393\u0394\u0398\u039b\u039e\u03A0\u03A3\u03A5\u03A8\u03a9’‘]$/.test(symbol)) {
+      return null;
+    }
+  }
+
+  return FONT_NAME[fontFamily];
+} // Export the public interface for this module
+
+
+var _default = {
+  coalesce: coalesce,
+  makeSpan: makeSpan,
+  makeOp: makeOp,
+  makeOrd: makeOrd,
+  makeRel: makeRel,
+  makeClose: makeClose,
+  makeOpen: makeOpen,
+  makeInner: makeInner,
+  makePunct: makePunct,
+  makeSpanOfType: makeSpanOfType,
+  makeSymbol: makeSymbol,
+  makeVlist: makeVlist,
+  makeHlist: makeHlist,
+  makeStyleWrap: makeStyleWrap,
+  // makeStrut,
+  makeSVG: makeSVG,
+  height: height,
+  depth: depth,
+  skew: skew,
+  italic: italic
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-editableMathlist.js b/dist/editor/editor-editableMathlist.js
new file mode 100644
index 000000000..6fb2b677c
--- /dev/null
+++ b/dist/editor/editor-editableMathlist.js
@@ -0,0 +1,4004 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.parseMathString = parseMathString;
+exports.default = void 0;
+
+var _definitions = _interopRequireDefault(require("../core/definitions.js"));
+
+var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
+
+var _lexer = _interopRequireDefault(require("../core/lexer.js"));
+
+var _parser = _interopRequireDefault(require("../core/parser.js"));
+
+var _editorMathpath = _interopRequireDefault(require("./editor-mathpath.js"));
+
+var _editorShortcuts = _interopRequireDefault(require("./editor-shortcuts.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
+
+function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
+
+function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
+
+function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+/**
+ *
+ * **Note**
+ * - Method names that _begin with_ an underbar `_` are private and meant
+ * to be used only by the implementation of the class.
+ * - Method names that _end with_ an underbar `_` are selectors. They can
+ * be invoked by calling [`MathField.$perform()`]{@link MathField#$perform}.
+ * They will be dispatched to an instance of `MathEditableList` as necessary.
+ * Note that the selector name does not include the underbar.
+ *
+ * For example:
+ * ```
+ *    mf.$perform('selectAll');
+ * ```
+ *
+ * @param {Object.<string, any>} config
+ * @param {Element} target - A target object passed as the first argument of 
+ * callback functions. Typically, a MathField.
+ * @property {MathAtom[]} root - The root element of the math expression.
+ * @property {Object[]} path - The path to the element that is the
+ * anchor for the selection.
+ * @property {number} extent - Number of atoms in the selection. `0` if the
+ * selection is collapsed.
+ * @property {Object.<string, any>} config
+ * @property {boolean} suppressChangeNotifications - If true,
+ * the handlers for notification change won't be called.
+ * @class
+ * @global
+ * @private
+ * @memberof module:editor/editableMathlist
+ */
+function EditableMathlist(config, target) {
+  this.root = _mathAtom.default.makeRoot();
+  this.path = [{
+    relation: 'body',
+    offset: 0
+  }];
+  this.extent = 0;
+  this.config = config ? _objectSpread({}, config) : {};
+  this.target = target;
+  this.suppressChangeNotifications = false;
+}
+
+function clone(mathlist) {
+  var result = Object.assign(new EditableMathlist(mathlist.config, mathlist.target), mathlist);
+  result.path = _editorMathpath.default.clone(mathlist.path);
+  return result;
+}
+
+EditableMathlist.prototype._announce = function (command, mathlist, atoms) {
+  if (typeof this.config.onAnnounce === 'function') {
+    this.config.onAnnounce(this.target, command, mathlist, atoms);
+  }
+};
+/**
+ * Iterate over each atom in the expression, starting with the focus.
+ *
+ * Return an array of all the paths for which the callback predicate
+ * returned true.
+ *
+ * @param {function} cb - A predicate being passed a path and the atom at this
+ * path. Return true to include the designated atom in the result.
+ * @param {number} dir - `+1` to iterate forward, `-1` to iterate backward.
+ * @return {MathAtom[]} The atoms for which the predicate is true
+ * @method EditableMathlist#filter
+ * @private
+ */
+
+
+EditableMathlist.prototype.filter = function (cb, dir) {
+  dir = dir < 0 ? -1 : +1;
+  var result = [];
+  var iter = new EditableMathlist();
+  iter.path = _editorMathpath.default.clone(this.path);
+  iter.extent = this.extent;
+  iter.root = this.root;
+
+  if (dir >= 0) {
+    iter.collapseForward();
+  } else {
+    iter.collapseBackward();
+    iter.move(1);
+  }
+
+  var initialAnchor = iter.anchor();
+
+  do {
+    if (cb.bind(iter)(iter.path, iter.anchor())) {
+      result.push(iter.toString());
+    }
+
+    if (dir >= 0) {
+      iter.next({
+        iterateAll: true
+      });
+    } else {
+      iter.previous({
+        iterateAll: true
+      });
+    }
+  } while (initialAnchor !== iter.anchor());
+
+  return result;
+};
+/**
+ * Enumerator
+ * @param {function} cb - A callback called for each atom in the mathlist.
+ */
+
+
+EditableMathlist.prototype.forEach = function (cb) {
+  this.root.forEach(cb);
+};
+/**
+ * 
+ * @param {function} cb - A callback called for each selected atom in the 
+ * mathlist.
+ */
+
+
+EditableMathlist.prototype.forEachSelected = function (cb, options) {
+  options = options || {};
+  options.recursive = typeof options.recursive !== 'undefined' ? options.recursive : false;
+  var siblings = this.siblings();
+  var firstOffset = this.startOffset() + 1;
+  var lastOffset = this.endOffset() + 1;
+
+  if (options.recursive) {
+    for (var i = firstOffset; i < lastOffset; i++) {
+      if (siblings[i] && siblings[i].type !== 'first') {
+        siblings[i].forEach(cb);
+      }
+    }
+  } else {
+    for (var _i = firstOffset; _i < lastOffset; _i++) {
+      if (siblings[_i] && siblings[_i].type !== 'first') {
+        cb(siblings[_i]);
+      }
+    }
+  }
+};
+/**
+ * Return a string representation of the selection.
+ * @todo This is a bad name for this function, since it doesn't return
+ * a representation of the content, which one might expect...
+ *
+ * @return {string}
+ * @method EditableMathlist#toString
+ * @private
+ */
+
+
+EditableMathlist.prototype.toString = function () {
+  return _editorMathpath.default.pathToString(this.path, this.extent);
+};
+/**
+ * When changing the selection, if the former selection is an empty list,
+ * insert a placeholder if necessary. For example, if in an empty numerator.
+*/
+
+
+EditableMathlist.prototype.adjustPlaceholder = function () {
+  // Should we insert a placeholder?
+  // Check if we're an empty list that is the child of a fraction
+  var siblings = this.siblings();
+
+  if (siblings && siblings.length <= 1) {
+    var placeholder;
+    var relation = this.relation();
+
+    if (relation === 'numer') {
+      placeholder = 'numerator';
+    } else if (relation === 'denom') {
+      placeholder = 'denominator';
+    } else if (this.parent().type === 'surd' && relation === 'body') {
+      // Surd (roots)
+      placeholder = 'radicand';
+    } else if (this.parent().type === 'overunder' && relation === 'body') {
+      placeholder = 'base';
+    } else if (relation === 'underscript' || relation === 'overscript') {
+      placeholder = 'annotation';
+    }
+
+    if (placeholder) {
+      // ◌ ⬚
+      var placeholderAtom = [new _mathAtom.default.MathAtom('math', 'placeholder', '⬚', this.anchorStyle())];
+      Array.prototype.splice.apply(siblings, [1, 0].concat(placeholderAtom));
+    }
+  }
+};
+
+EditableMathlist.prototype.selectionWillChange = function () {
+  if (typeof this.config.onSelectionWillChange === 'function' && !this.suppressChangeNotifications) {
+    this.config.onSelectionWillChange(this.target);
+  }
+};
+
+EditableMathlist.prototype.selectionDidChange = function () {
+  if (typeof this.config.onSelectionDidChange === 'function' && !this.suppressChangeNotifications) {
+    this.config.onSelectionDidChange(this.target);
+  }
+};
+
+EditableMathlist.prototype.contentWillChange = function () {
+  if (typeof this.config.onContentWillChange === 'function' && !this.suppressChangeNotifications) {
+    this.config.onContentWillChange(this.target);
+  }
+};
+
+EditableMathlist.prototype.contentDidChange = function () {
+  if (typeof this.config.onContentDidChange === 'function' && !this.suppressChangeNotifications) {
+    this.config.onContentDidChange(this.target);
+  }
+};
+/**
+ *
+ * @param {string|Array} selection
+ * @param {number} extent the length of the selection
+ * @return {boolean} true if the path has actually changed
+ */
+
+
+EditableMathlist.prototype.setPath = function (selection, extent) {
+  // Convert to a path array if necessary
+  if (typeof selection === 'string') {
+    selection = _editorMathpath.default.pathFromString(selection);
+  } else if (Array.isArray(selection)) {
+    // need to temporarily change the path of this to use 'sibling()'
+    var newPath = _editorMathpath.default.clone(selection);
+
+    var oldPath = this.path;
+    this.path = newPath;
+
+    if (extent === 0 && this.anchor().type === 'placeholder') {
+      // select the placeholder
+      newPath[newPath.length - 1].offset = 0;
+      extent = 1;
+    }
+
+    selection = {
+      path: newPath,
+      extent: extent || 0
+    };
+    this.path = oldPath;
+  }
+
+  var pathChanged = _editorMathpath.default.pathDistance(this.path, selection.path) !== 0;
+  var extentChanged = selection.extent !== this.extent;
+
+  if (pathChanged || extentChanged) {
+    if (pathChanged) {
+      this.adjustPlaceholder();
+    }
+
+    this.selectionWillChange();
+    this.path = _editorMathpath.default.clone(selection.path);
+
+    if (this.siblings().length < this.anchorOffset()) {
+      // The new path is out of bounds.
+      // Reset the path to something valid
+      console.warn('Invalid selection: ' + this.toString() + ' in "' + this.root.toLatex() + '"');
+      this.path = [{
+        relation: 'body',
+        offset: 0
+      }];
+      this.extent = 0;
+    } else {
+      this.setExtent(selection.extent);
+    }
+
+    this.selectionDidChange();
+  }
+
+  return pathChanged || extentChanged;
+};
+
+EditableMathlist.prototype.wordBoundary = function (path, dir) {
+  dir = dir < 0 ? -1 : +1;
+  var iter = new EditableMathlist();
+  iter.path = _editorMathpath.default.clone(path);
+  iter.root = this.root;
+  var i = 0;
+
+  while (iter.sibling(i) && iter.sibling(i).mode === 'text' && _definitions.default.LETTER_AND_DIGITS.test(iter.sibling(i).body)) {
+    i += dir;
+  }
+
+  if (!iter.sibling(i)) i -= dir;
+  iter.path[iter.path.length - 1].offset += i;
+  return iter.path;
+};
+/**
+ * Calculates the offset of the "next word".
+ * This is inspired by the behavior of text editors on macOS, namely:
+    blue   yellow
+      ^-                
+         ^-------       
+ * That is:
+
+ * (1) If starts with an alphanumerical character, find the first alphanumerical
+ * character which is followed by a non-alphanumerical character
+ * 
+ * The behavior regarding non-alphanumeric characters is less consistent.
+ * Here's the behavior we use:
+ * 
+ *   +=-()_:”     blue
+ * ^---------   
+ *   +=-()_:”     blue
+ *      ^---------
+ *   +=-()_:”blue
+ *      ^--------
+ * 
+ * (2) If starts in whitespace, skip whitespace, then find first non-whitespace*
+ *    followed by whitespace
+ * (*) Pages actually uses the character class of the first non-whitespace 
+ * encountered.
+ * 
+ * (3) If starts in a non-whitespace, non alphanumerical character, find the first 
+ *      whitespace
+ * 
+ */
+
+
+EditableMathlist.prototype.wordBoundaryOffset = function (offset, dir) {
+  dir = dir < 0 ? -1 : +1;
+  var siblings = this.siblings();
+  if (!siblings[offset]) return offset;
+  if (siblings[offset].mode !== 'text') return offset;
+  var result;
+
+  if (_definitions.default.LETTER_AND_DIGITS.test(siblings[offset].body)) {
+    // (1) We start with an alphanumerical character
+    var i = offset;
+    var match;
+
+    do {
+      match = siblings[i].mode === 'text' && _definitions.default.LETTER_AND_DIGITS.test(siblings[i].body);
+      i += dir;
+    } while (siblings[i] && match);
+
+    result = siblings[i] ? i - 2 * dir : i - dir;
+  } else if (/\s/.test(siblings[offset].body)) {
+    // (2) We start with whitespace
+    // Skip whitespace
+    var _i2 = offset;
+
+    while (siblings[_i2] && siblings[_i2].mode === 'text' && /\s/.test(siblings[_i2].body)) {
+      _i2 += dir;
+    }
+
+    if (!siblings[_i2]) {
+      // We've reached the end
+      result = _i2 - dir;
+    } else {
+      var _match = true;
+
+      do {
+        _match = siblings[_i2].mode === 'text' && !/\s/.test(siblings[_i2].body);
+        _i2 += dir;
+      } while (siblings[_i2] && _match);
+
+      result = siblings[_i2] ? _i2 - 2 * dir : _i2 - dir;
+    }
+  } else {
+    // (3) 
+    var _i3 = offset; // Skip non-whitespace
+
+    while (siblings[_i3] && siblings[_i3].mode === 'text' && !/\s/.test(siblings[_i3].body)) {
+      _i3 += dir;
+    }
+
+    result = siblings[_i3] ? _i3 : _i3 - dir;
+    var _match2 = true;
+
+    while (siblings[_i3] && _match2) {
+      _match2 = siblings[_i3].mode === 'text' && /\s/.test(siblings[_i3].body);
+      if (_match2) result = _i3;
+      _i3 += dir;
+    }
+
+    result = siblings[_i3] ? _i3 - 2 * dir : _i3 - dir;
+  }
+
+  return result - (dir > 0 ? 0 : 1);
+};
+/**
+ * Extend the selection between `from` and `to` nodes
+ *
+ * @param {string[]} from
+ * @param {string[]} to
+ * @param {object} options
+ * - options.extendToWordBoundary
+ * @method EditableMathlist#setRange
+ * @return {boolean} true if the range was actually changed
+ * @private
+ */
+
+
+EditableMathlist.prototype.setRange = function (from, to, options) {
+  options = options || {}; // Measure the 'distance' between `from` and `to`
+
+  var distance = _editorMathpath.default.pathDistance(from, to);
+
+  if (distance === 0) {
+    // `from` and `to` are equal.
+    if (options.extendToWordBoundary) {
+      from = this.wordBoundary(from, -1);
+      to = this.wordBoundary(to, +1);
+      return this.setRange(from, to);
+    } // Set the path to a collapsed insertion point
+
+
+    return this.setPath(_editorMathpath.default.clone(from), 0);
+  }
+
+  if (distance === 1) {
+    var _extent = to[to.length - 1].offset - from[from.length - 1].offset;
+
+    if (options.extendToWordBoundary) {
+      from = this.wordBoundary(from, _extent < 0 ? +1 : -1);
+      to = this.wordBoundary(to, _extent < 0 ? -1 : +1);
+      return this.setRange(from, to);
+    } // They're siblings, set an extent
+
+
+    return this.setPath(_editorMathpath.default.clone(from), _extent);
+  } // They're neither identical, not siblings.
+  // Find the common ancestor between the nodes
+
+
+  var commonAncestor = _editorMathpath.default.pathCommonAncestor(from, to);
+
+  var ancestorDepth = commonAncestor.length;
+
+  if (from.length === ancestorDepth || to.length === ancestorDepth || from[ancestorDepth].relation !== to[ancestorDepth].relation) {
+    return this.setPath(commonAncestor, -1);
+  }
+
+  commonAncestor.push(from[ancestorDepth]);
+  commonAncestor = _editorMathpath.default.clone(commonAncestor);
+  var extent = to[ancestorDepth].offset - from[ancestorDepth].offset + 1;
+
+  if (extent <= 0) {
+    if (to.length > ancestorDepth + 1) {
+      // axb/c+y -> select from y to x
+      commonAncestor[ancestorDepth].relation = to[ancestorDepth].relation;
+      commonAncestor[ancestorDepth].offset = to[ancestorDepth].offset;
+      commonAncestor[commonAncestor.length - 1].offset -= 1;
+      extent = -extent + 2;
+    } else {
+      // x+(ayb/c) -> select from y to x
+      commonAncestor[ancestorDepth].relation = to[ancestorDepth].relation;
+      commonAncestor[ancestorDepth].offset = to[ancestorDepth].offset;
+      extent = -extent + 1;
+    }
+  } else if (to.length <= from.length) {
+    // axb/c+y -> select from x to y
+    commonAncestor[commonAncestor.length - 1].offset -= 1;
+  } else if (to.length > from.length) {
+    commonAncestor[ancestorDepth].offset -= 1;
+  }
+
+  return this.setPath(commonAncestor, extent);
+};
+/**
+ * Convert an array row/col into an array index.
+ * @param {MathAtom[][]} array
+ * @param {object} rowCol
+ * @return {number}
+ */
+
+
+function arrayIndex(array, rowCol) {
+  var result = 0;
+
+  for (var i = 0; i < rowCol.row; i++) {
+    for (var j = 0; j < array[i].length; j++) {
+      result += 1;
+    }
+  }
+
+  result += rowCol.col;
+  return result;
+}
+/**
+ * Convert an array index (scalar) to an array row/col.
+ * @param {MathAtom[][]} array
+ * @param {number|string} index
+ * @return {object}
+ * - row: number
+ * - col: number
+ */
+
+
+function arrayColRow(array, index) {
+  if (typeof index === 'string') {
+    var m = index.match(/cell([0-9]*)$/);
+    if (m) index = parseInt(m[1]);
+  }
+
+  var result = {
+    row: 0,
+    col: 0
+  };
+
+  while (index > 0) {
+    result.col += 1;
+
+    if (!array[result.row] || result.col >= array[result.row].length) {
+      result.col = 0;
+      result.row += 1;
+    }
+
+    index -= 1;
+  }
+
+  return result;
+}
+/**
+ * Return the array cell corresponding to colrow or null (for example in
+ * a sparse array)
+ *
+ * @param {MathAtom[][]} array
+ * @param {number|string|object} colrow
+ */
+
+
+function arrayCell(array, colrow) {
+  if (_typeof(colrow) !== 'object') colrow = arrayColRow(array, colrow);
+  var result;
+
+  if (Array.isArray(array[colrow.row])) {
+    result = array[colrow.row][colrow.col] || null;
+  } // If the 'first' math atom is missing, insert it
+
+
+  if (result && (result.length === 0 || result[0].type !== 'first')) {
+    result.unshift(makeFirstAtom());
+  }
+
+  return result;
+}
+/**
+ * Total numbers of cells (include sparse cells) in the array.
+ * @param {MathAtom[][]} array
+ */
+
+
+function arrayCellCount(array) {
+  var result = 0;
+  var numRows = 0;
+  var numCols = 1;
+  var _iteratorNormalCompletion = true;
+  var _didIteratorError = false;
+  var _iteratorError = undefined;
+
+  try {
+    for (var _iterator = array[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      var row = _step.value;
+      numRows += 1;
+      if (row.length > numCols) numCols = row.length;
+    }
+  } catch (err) {
+    _didIteratorError = true;
+    _iteratorError = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion && _iterator.return != null) {
+        _iterator.return();
+      }
+    } finally {
+      if (_didIteratorError) {
+        throw _iteratorError;
+      }
+    }
+  }
+
+  result = numRows * numCols;
+  return result;
+}
+/**
+ * Join all the cells at the indicated row into a single mathlist
+ * @param {MathAtom[]} row 
+ * @param {string} separator 
+ * @param {object} style 
+ * @return {MathAtom[]}
+ */
+
+
+function arrayJoinColumns(row, separator, style) {
+  if (!row) return [];
+  if (!separator) separator = ',';
+  var result = [];
+  var sep;
+  var _iteratorNormalCompletion2 = true;
+  var _didIteratorError2 = false;
+  var _iteratorError2 = undefined;
+
+  try {
+    for (var _iterator2 = row[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+      var cell = _step2.value;
+
+      if (cell && cell.length > 0 && cell[0].type === 'first') {
+        // Remove the 'first' atom, if present
+        cell = cell.slice(1);
+      }
+
+      if (cell && cell.length > 0) {
+        if (sep) {
+          result.push(sep);
+        } else {
+          sep = new _mathAtom.default.MathAtom('math', 'mpunct', separator, style);
+        }
+
+        result = result.concat(cell);
+      }
+    }
+  } catch (err) {
+    _didIteratorError2 = true;
+    _iteratorError2 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+        _iterator2.return();
+      }
+    } finally {
+      if (_didIteratorError2) {
+        throw _iteratorError2;
+      }
+    }
+  }
+
+  return result;
+}
+/**
+ * Join all the rows into a single atom list
+ * @param {MathAtom} array 
+ * @param {strings} separators
+ * @param {object} style 
+ * @return {MathAtom[]}
+ */
+
+
+function arrayJoinRows(array, separators, style) {
+  if (!separators) separators = [';', ','];
+  var result = [];
+  var sep;
+  var _iteratorNormalCompletion3 = true;
+  var _didIteratorError3 = false;
+  var _iteratorError3 = undefined;
+
+  try {
+    for (var _iterator3 = array[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+      var row = _step3.value;
+
+      if (sep) {
+        result.push(sep);
+      } else {
+        sep = new _mathAtom.default.MathAtom('math', 'mpunct', separators[0], style);
+      }
+
+      result = result.concat(arrayJoinColumns(row, separators[1]));
+    }
+  } catch (err) {
+    _didIteratorError3 = true;
+    _iteratorError3 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+        _iterator3.return();
+      }
+    } finally {
+      if (_didIteratorError3) {
+        throw _iteratorError3;
+      }
+    }
+  }
+
+  return result;
+}
+/**
+ * Return the number of non-empty cells in that column
+ * @param {MathAtom} array 
+ * @param {number} col 
+ * @return {number}
+ */
+
+
+function arrayColumnCellCount(array, col) {
+  var result = 0;
+  var colRow = {
+    col: col,
+    row: 0
+  };
+
+  while (colRow.row < array.length) {
+    var cell = arrayCell(array, colRow);
+
+    if (cell && cell.length > 0) {
+      var cellLen = cell.length;
+      if (cell[0].type === 'first') cellLen -= 1;
+
+      if (cellLen > 0) {
+        result += 1;
+      }
+    }
+
+    colRow.row += 1;
+  }
+
+  return result;
+}
+/**
+ * Remove the indicated column from the array
+ * @param {MathAtom} array 
+ * @param {number} col 
+ */
+
+
+function arrayRemoveColumn(array, col) {
+  var row = 0;
+
+  while (row < array.length) {
+    if (array[row][col]) {
+      array[row].splice(col, 1);
+    }
+
+    row += 1;
+  }
+}
+/**
+ * Remove the indicated row from the array
+ * @param {MathAtom} atom 
+ * @param {number} row 
+ */
+
+
+function arrayRemoveRow(array, row) {
+  array.splice(row, 1);
+}
+/**
+ * Return the first non-empty cell, row by row
+ * @param {MathAtom[][]} array 
+ * @return {string}
+ */
+
+
+function arrayFirstCellByRow(array) {
+  var colRow = {
+    col: 0,
+    row: 0
+  };
+
+  while (colRow.row < array.length && !arrayCell(array, colRow)) {
+    colRow.row += 1;
+  }
+
+  return arrayCell(array, colRow) ? 'cell' + arrayIndex(array, colRow) : '';
+}
+/**
+ * Adjust colRow to point to the next/previous available row
+ * If no more rows, go to the next/previous column
+ * If no more columns, return null
+ * @param {MathAtom[][]} array 
+ * @param {object} colRow 
+ * @param {number} dir 
+ */
+
+
+function arrayAdjustRow(array, colRow, dir) {
+  var result = _objectSpread({}, colRow);
+
+  result.row += dir;
+
+  if (result.row < 0) {
+    result.col += dir;
+    result.row = array.length - 1;
+    if (result.col < 0) return null;
+
+    while (result.row >= 0 && !arrayCell(array, result)) {
+      result.row -= 1;
+    }
+
+    if (result.row < 0) return null;
+  } else if (result.row >= array.length) {
+    result.col += dir;
+    result.row = 0;
+
+    while (result.row < array.length && !arrayCell(array, result)) {
+      result.row += 1;
+    }
+
+    if (result.row > array.length - 1) return null;
+  }
+
+  return result;
+}
+/**
+ * @param {number} ancestor distance from self to ancestor.
+ * - `ancestor` = 0: self
+ * - `ancestor` = 1: parent
+ * - `ancestor` = 2: grand-parent
+ * - etc...
+ * @return {MathAtom}
+ * @method EditableMathlist#ancestor
+ * @private
+ */
+
+
+EditableMathlist.prototype.ancestor = function (ancestor) {
+  // If the requested ancestor goes beyond what's available,
+  // return null
+  if (ancestor > this.path.length) return null; // Start with the root
+
+  var result = this.root; // Iterate over the path segments, selecting the appropriate
+
+  for (var i = 0; i < this.path.length - ancestor; i++) {
+    var segment = this.path[i];
+
+    if (result.array) {
+      result = arrayCell(result.array, segment.relation)[segment.offset];
+    } else if (!result[segment.relation]) {
+      // There is no such relation... (the path got out of sync with the tree)
+      return null;
+    } else {
+      // Make sure the 'first' atom has been inserted, otherwise
+      // the segment.offset might be invalid
+      if (result[segment.relation].length === 0 || result[segment.relation][0].type !== 'first') {
+        result[segment.relation].unshift(makeFirstAtom());
+      }
+
+      var offset = Math.min(segment.offset, result[segment.relation].length - 1);
+      result = result[segment.relation][offset];
+    }
+  }
+
+  return result;
+};
+/**
+ * The atom where the selection starts. When the selection is extended
+ * the anchor remains fixed. The anchor could be either before or
+ * after the focus.
+ *
+ * @method EditableMathlist#anchor
+ * @private
+ */
+
+
+EditableMathlist.prototype.anchor = function () {
+  if (this.parent().array) {
+    return arrayCell(this.parent().array, this.relation())[this.anchorOffset()];
+  }
+
+  var siblings = this.siblings();
+  return siblings[Math.min(siblings.length - 1, this.anchorOffset())];
+};
+
+EditableMathlist.prototype.parent = function () {
+  return this.ancestor(1);
+};
+
+EditableMathlist.prototype.relation = function () {
+  return this.path.length > 0 ? this.path[this.path.length - 1].relation : '';
+};
+
+EditableMathlist.prototype.anchorOffset = function () {
+  return this.path.length > 0 ? this.path[this.path.length - 1].offset : 0;
+};
+
+EditableMathlist.prototype.focusOffset = function () {
+  return this.path.length > 0 ? this.path[this.path.length - 1].offset + this.extent : 0;
+};
+/**
+ * Offset of the first atom included in the selection
+ * i.e. `=1` => selection starts with and includes first atom
+ * With expression _x=_ and atoms :
+ * - 0: _<first>_
+ * - 1: _x_
+ * - 2: _=_
+ *
+ * - if caret is before _x_:  `start` = 0, `end` = 0
+ * - if caret is after _x_:   `start` = 1, `end` = 1
+ * - if _x_ is selected:      `start` = 1, `end` = 2
+ * - if _x=_ is selected:   `start` = 1, `end` = 3
+ * @method EditableMathlist#startOffset
+ * @private
+ */
+
+
+EditableMathlist.prototype.startOffset = function () {
+  return Math.min(this.focusOffset(), this.anchorOffset());
+};
+/**
+ * Offset of the first atom not included in the selection
+ * i.e. max value of `siblings.length`
+ * `endOffset - startOffset = extent`
+ * @method EditableMathlist#endOffset
+ * @private
+ */
+
+
+EditableMathlist.prototype.endOffset = function () {
+  return Math.max(this.focusOffset(), this.anchorOffset());
+};
+/**
+ * If necessary, insert a `first` atom in the sibling list.
+ * If there's already a `first` atom, do nothing.
+ * The `first` atom is used as a 'placeholder' to hold the blinking caret when
+ * the caret is positioned at the very beginning of the mathlist.
+ * @method EditableMathlist#insertFirstAtom
+ * @private
+ */
+
+
+EditableMathlist.prototype.insertFirstAtom = function () {
+  this.siblings();
+};
+/**
+ * @return {MathAtom[]} array of children of the parent
+ * @method EditableMathlist#siblings
+ * @private
+ */
+
+
+EditableMathlist.prototype.siblings = function () {
+  if (this.path.length === 0) return [];
+  var siblings;
+
+  if (this.parent().array) {
+    siblings = arrayCell(this.parent().array, this.relation());
+  } else {
+    siblings = this.parent()[this.relation()] || [];
+    if (typeof siblings === 'string') siblings = [];
+  } // If the 'first' math atom is missing, insert it
+
+
+  if (siblings.length === 0 || siblings[0].type !== 'first') {
+    siblings.unshift(makeFirstAtom());
+  }
+
+  return siblings;
+};
+/**
+ * Sibling, relative to `anchor`
+ * `sibling(0)` = start of selection
+ * `sibling(-1)` = sibling immediately left of start offset
+ * @return {MathAtom}
+ * @method EditableMathlist#sibling
+ * @private
+ */
+
+
+EditableMathlist.prototype.sibling = function (offset) {
+  return this.siblings()[this.startOffset() + offset];
+};
+/**
+ * @return {boolean} True if the selection is an insertion point.
+ * @method EditableMathlist#isCollapsed
+ */
+
+
+EditableMathlist.prototype.isCollapsed = function () {
+  return this.extent === 0;
+};
+/**
+ * @param {number} extent
+ * @method EditableMathlist#setExtent
+ * @private
+ */
+
+
+EditableMathlist.prototype.setExtent = function (extent) {
+  this.extent = extent;
+};
+
+EditableMathlist.prototype.collapseForward = function () {
+  if (this.extent === 0) return false;
+  this.setSelection(this.endOffset());
+  return true;
+};
+
+EditableMathlist.prototype.collapseBackward = function () {
+  if (this.extent === 0) return false;
+  this.setSelection(this.startOffset());
+  return true;
+};
+/**
+ * Return true if the atom could be a part of a number
+ * i.e. "-12354.568"
+ * @param {object} atom 
+ */
+
+
+function isNumber(atom) {
+  if (!atom) return false;
+  return atom.type === 'mord' && /[0-9.]/.test(atom.body) || atom.type === 'mpunct' && atom.body === ',';
+}
+/**
+ * Select all the atoms in the current group, that is all the siblings.
+ * When the selection is in a numerator, the group is the numerator. When
+ * the selection is a superscript or subscript, the group is the supsub.
+ * When the selection is in a text zone, the "group" is a word.
+ * @method EditableMathlist#selectGroup_
+ */
+
+
+EditableMathlist.prototype.selectGroup_ = function () {
+  var siblings = this.siblings();
+
+  if (this.anchorMode() === 'text') {
+    var start = this.startOffset();
+    var end = this.endOffset(); // 
+
+    while (siblings[start] && siblings[start].mode === 'text' && _definitions.default.LETTER_AND_DIGITS.test(siblings[start].body)) {
+      start -= 1;
+    }
+
+    while (siblings[end] && siblings[end].mode === 'text' && _definitions.default.LETTER_AND_DIGITS.test(siblings[end].body)) {
+      end += 1;
+    }
+
+    end -= 1;
+
+    if (start >= end) {
+      // No word found. Select a single character
+      this.setSelection(this.endOffset() - 1, 1);
+      return;
+    }
+
+    this.setSelection(start, end - start);
+  } else {
+    // In a math zone, select all the sibling nodes
+    if (this.sibling(0).type === 'mord' && /[0-9,.]/.test(this.sibling(0).body)) {
+      // In a number, select all the digits
+      var _start = this.startOffset();
+
+      var _end = this.endOffset(); // 
+
+
+      while (isNumber(siblings[_start])) {
+        _start -= 1;
+      }
+
+      while (isNumber(siblings[_end])) {
+        _end += 1;
+      }
+
+      _end -= 1;
+      this.setSelection(_start, _end - _start);
+    } else {
+      this.setSelection(0, 'end');
+    }
+  }
+};
+/**
+ * Select all the atoms in the math field.
+ * @method EditableMathlist#selectAll_
+ */
+
+
+EditableMathlist.prototype.selectAll_ = function () {
+  this.path = [{
+    relation: 'body',
+    offset: 0
+  }];
+  this.setSelection(0, 'end');
+};
+/**
+ * Delete everything in the field
+ * @method EditableMathlist#deleteAll_
+ */
+
+
+EditableMathlist.prototype.deleteAll_ = function () {
+  this.selectAll_();
+  this.delete_();
+};
+/**
+ *
+ * @param {MathAtom} atom
+ * @param {MathAtom} target
+ * @return {boolean} True if  `atom` is the target, or if one of the
+ * children of `atom` contains the target
+ * @function atomContains
+ * @private
+ */
+
+
+function atomContains(atom, target) {
+  if (!atom) return false;
+
+  if (Array.isArray(atom)) {
+    var _iteratorNormalCompletion4 = true;
+    var _didIteratorError4 = false;
+    var _iteratorError4 = undefined;
+
+    try {
+      for (var _iterator4 = atom[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
+        var child = _step4.value;
+        if (atomContains(child, target)) return true;
+      }
+    } catch (err) {
+      _didIteratorError4 = true;
+      _iteratorError4 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
+          _iterator4.return();
+        }
+      } finally {
+        if (_didIteratorError4) {
+          throw _iteratorError4;
+        }
+      }
+    }
+  } else {
+    if (atom === target) return true;
+    if (['body', 'numer', 'denom', 'index', 'subscript', 'superscript', 'underscript', 'overscript'].some(function (value) {
+      return value === target || atomContains(atom[value], target);
+    })) return true;
+
+    if (atom.array) {
+      for (var i = arrayCellCount(atom.array); i >= 0; i--) {
+        if (atomContains(arrayCell(atom.array, i), target)) {
+          return true;
+        }
+      }
+    }
+  }
+
+  return false;
+}
+/**
+ * @param {MathAtom} atom
+ * @return {boolean} True if `atom` is within the selection range
+ * @todo: poorly named, since this is specific to the selection, not the math
+ * field
+ * @method EditableMathlist#contains
+ * @private
+ */
+
+
+EditableMathlist.prototype.contains = function (atom) {
+  if (this.isCollapsed()) return false;
+  var siblings = this.siblings();
+  var firstOffset = this.startOffset();
+  var lastOffset = this.endOffset();
+
+  for (var i = firstOffset; i < lastOffset; i++) {
+    if (atomContains(siblings[i], atom)) return true;
+  }
+
+  return false;
+};
+/**
+ * @return {MathAtom[]} The currently selected atoms, or `null` if the
+ * selection is collapsed
+ * @method EditableMathlist#getSelectedAtoms
+ * @private
+ */
+
+
+EditableMathlist.prototype.getSelectedAtoms = function () {
+  if (this.isCollapsed()) return null;
+  var result = [];
+  var siblings = this.siblings();
+  var firstOffset = this.startOffset() + 1;
+  var lastOffset = this.endOffset() + 1;
+
+  for (var i = firstOffset; i < lastOffset; i++) {
+    if (siblings[i] && siblings[i].type !== 'first') result.push(siblings[i]);
+  }
+
+  return result;
+};
+/**
+ * Return a `{start:, end:}` for the offsets of the command around the insertion
+ * point, or null.
+ * - `start` is the first atom which is of type `command`
+ * - `end` is after the last atom of type `command`
+ * @return {object}
+ * @method EditableMathlist#commandOffsets
+ * @private
+ */
+
+
+EditableMathlist.prototype.commandOffsets = function () {
+  var siblings = this.siblings();
+  if (siblings.length <= 1) return null;
+  var start = Math.min(this.endOffset(), siblings.length - 1); // let start = Math.max(0, this.endOffset());
+
+  if (siblings[start].type !== 'command') return null;
+
+  while (start > 0 && siblings[start].type === 'command') {
+    start -= 1;
+  }
+
+  var end = this.startOffset() + 1;
+
+  while (end <= siblings.length - 1 && siblings[end].type === 'command') {
+    end += 1;
+  }
+
+  if (end > start) {
+    return {
+      start: start + 1,
+      end: end
+    };
+  }
+
+  return null;
+};
+/**
+ * @return {string}
+ * @method EditableMathlist#extractCommandStringAroundInsertionPoint
+ * @private
+ */
+
+
+EditableMathlist.prototype.extractCommandStringAroundInsertionPoint = function (beforeInsertionPointOnly) {
+  var result = '';
+  var command = this.commandOffsets();
+
+  if (command) {
+    var end = beforeInsertionPointOnly ? this.anchorOffset() + 1 : command.end;
+    var siblings = this.siblings();
+
+    for (var i = command.start; i < end; i++) {
+      // All these atoms are 'command' atom with a body that's
+      // a single character
+      result += siblings[i].body || '';
+    }
+  }
+
+  return result;
+};
+/**
+ * @param {boolean} value If true, decorate the command string around the
+ * insertion point with an error indicator (red dotted underline). If false,
+ * remove it.
+ * @method EditableMathlist#decorateCommandStringAroundInsertionPoint
+ * @private
+ */
+
+
+EditableMathlist.prototype.decorateCommandStringAroundInsertionPoint = function (value) {
+  var command = this.commandOffsets();
+
+  if (command) {
+    var siblings = this.siblings();
+
+    for (var i = command.start; i < command.end; i++) {
+      siblings[i].error = value;
+    }
+  }
+};
+/**
+ * @return {string}
+ * @method EditableMathlist#commitCommandStringBeforeInsertionPoint
+ * @private
+ */
+
+
+EditableMathlist.prototype.commitCommandStringBeforeInsertionPoint = function () {
+  var command = this.commandOffsets();
+
+  if (command) {
+    var siblings = this.siblings();
+    var anchorOffset = this.anchorOffset() + 1;
+
+    for (var i = command.start; i < anchorOffset; i++) {
+      if (siblings[i]) {
+        siblings[i].suggestion = false;
+      }
+    }
+  }
+};
+
+EditableMathlist.prototype.spliceCommandStringAroundInsertionPoint = function (mathlist) {
+  var command = this.commandOffsets();
+
+  if (command) {
+    // Dispatch notifications
+    this.contentWillChange();
+
+    if (!mathlist) {
+      this.siblings().splice(command.start, command.end - command.start);
+      this.setSelection(command.start - 1, 0);
+    } else {
+      Array.prototype.splice.apply(this.siblings(), [command.start, command.end - command.start].concat(mathlist));
+      var newPlaceholders = [];
+      var _iteratorNormalCompletion5 = true;
+      var _didIteratorError5 = false;
+      var _iteratorError5 = undefined;
+
+      try {
+        for (var _iterator5 = mathlist[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
+          var atom = _step5.value;
+          newPlaceholders = newPlaceholders.concat(atom.filter(function (atom) {
+            return atom.type === 'placeholder';
+          }));
+        }
+      } catch (err) {
+        _didIteratorError5 = true;
+        _iteratorError5 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
+            _iterator5.return();
+          }
+        } finally {
+          if (_didIteratorError5) {
+            throw _iteratorError5;
+          }
+        }
+      }
+
+      this.setExtent(0); // Set the anchor offset to a reasonable value that can be used by
+      // leap(). In particular, the current offset value may be invalid
+      // if the length of the mathlist is shorter than the name of the command
+
+      this.path[this.path.length - 1].offset = command.start - 1;
+
+      if (newPlaceholders.length === 0 || !this.leap(+1, false)) {
+        this.setSelection(command.start + mathlist.length - 1);
+      }
+    } // Dispatch notifications
+
+
+    this.contentDidChange();
+  }
+};
+
+function removeCommandStringFromAtom(atom) {
+  if (!atom) return;
+
+  if (Array.isArray(atom)) {
+    for (var i = atom.length - 1; i >= 0; i--) {
+      if (atom[i].type === 'command') {
+        atom.splice(i, 1); // i += 1;
+      } else {
+        removeCommandStringFromAtom(atom[i]);
+      }
+    }
+
+    return;
+  }
+
+  removeCommandStringFromAtom(atom.body);
+  removeCommandStringFromAtom(atom.superscript);
+  removeCommandStringFromAtom(atom.subscript);
+  removeCommandStringFromAtom(atom.underscript);
+  removeCommandStringFromAtom(atom.overscript);
+  removeCommandStringFromAtom(atom.numer);
+  removeCommandStringFromAtom(atom.denom);
+  removeCommandStringFromAtom(atom.index);
+
+  if (atom.array) {
+    for (var j = arrayCellCount(atom.array); j >= 0; j--) {
+      removeCommandStringFromAtom(arrayCell(atom.array, j));
+    }
+  }
+}
+
+EditableMathlist.prototype.removeCommandString = function () {
+  this.contentWillChange();
+  var contentWasChanging = this.suppressChangeNotifications;
+  this.suppressChangeNotifications = true;
+  removeCommandStringFromAtom(this.root.body);
+  this.suppressChangeNotifications = contentWasChanging;
+  this.contentDidChange();
+};
+/**
+ * @return {string}
+ * @method EditableMathlist#extractArgBeforeInsertionPoint
+ * @private
+ */
+
+
+EditableMathlist.prototype.extractArgBeforeInsertionPoint = function () {
+  var siblings = this.siblings();
+  if (siblings.length <= 1) return [];
+  var result = [];
+  var i = this.startOffset();
+
+  if (siblings[i].mode === 'text') {
+    while (i >= 1 && siblings[i].mode === 'text') {
+      result.unshift(siblings[i]);
+      i--;
+    }
+  } else {
+    while (i >= 1 && /^(mord|surd|msubsup|leftright|mop)$/.test(siblings[i].type)) {
+      result.unshift(siblings[i]);
+      i--;
+    }
+  }
+
+  return result;
+}; // 3 + 4(sin(x) > 3 + 4[sin(x)]/[ __ ]
+// Add a frac inside a partial leftright: remove leftright
+// When smartfence, add paren at end of expr
+// a+3x=1 insert after + => paren before =
+
+/**
+ * @param {number} offset
+ * - &gt;0: index of the child in the group where the selection will start from
+ * - <0: index counting from the end of the group
+ * @param {number|string} [extent=0] Number of items in the selection:
+ * - 0: collapsed selection, single insertion point
+ * - &gt;0: selection extending _after_ the offset
+ * - <0: selection extending _before_ the offset
+ * - `'end'`: selection extending to the end of the group
+ * - `'start'`: selection extending to the beginning of the group
+ * @param {string} relation e.g. `'body'`, `'superscript'`, etc...
+ * @return {boolean} False if the relation is invalid (no such children)
+ * @method EditableMathlist#setSelection
+ * @private
+ */
+
+
+EditableMathlist.prototype.setSelection = function (offset, extent, relation) {
+  offset = offset || 0;
+  extent = extent || 0; // If no relation ("children", "superscript", etc...) is specified
+  // keep the current relation
+
+  var oldRelation = this.path[this.path.length - 1].relation;
+  if (!relation) relation = oldRelation; // If the relation is invalid, exit and return false
+
+  var parent = this.parent();
+  if (!parent && relation !== 'body') return false;
+  var arrayRelation = relation.startsWith('cell');
+  if (!arrayRelation && !parent[relation] || arrayRelation && !parent.array) return false;
+  var relationChanged = relation !== oldRelation; // Temporarily set the path to the potentially new relation to get the
+  // right siblings
+
+  this.path[this.path.length - 1].relation = relation; // Invoking siblings() will have the side-effect of adding the 'first'
+  // atom if necessary
+  // ... and we want the siblings with the potentially new relation...
+
+  var siblings = this.siblings();
+  var siblingsCount = siblings.length; // Restore the relation
+
+  this.path[this.path.length - 1].relation = oldRelation;
+  var oldExtent = this.extent;
+
+  if (extent === 'end') {
+    extent = siblingsCount - offset - 1;
+  } else if (extent === 'start') {
+    extent = -offset;
+  }
+
+  this.setExtent(extent);
+  var extentChanged = this.extent !== oldExtent;
+  this.setExtent(oldExtent); // Calculate the new offset, and make sure it is in range
+  // (setSelection can be called with an offset that greater than
+  // the number of children, for example when doing an up from a
+  // numerator to a smaller denominator, e.g. "1/(x+1)".
+
+  if (offset < 0) {
+    offset = siblingsCount + offset;
+  }
+
+  offset = Math.max(0, Math.min(offset, siblingsCount - 1));
+  var oldOffset = this.path[this.path.length - 1].offset;
+  var offsetChanged = oldOffset !== offset;
+
+  if (relationChanged || offsetChanged || extentChanged) {
+    if (relationChanged) {
+      this.adjustPlaceholder();
+    }
+
+    this.selectionWillChange();
+    this.path[this.path.length - 1].relation = relation;
+    this.path[this.path.length - 1].offset = offset;
+    this.setExtent(extent);
+    this.selectionDidChange();
+  }
+
+  return true;
+};
+/**
+ * Move the anchor to the next permissible atom
+ * @method EditableMathlist#next
+ * @private
+ */
+
+
+EditableMathlist.prototype.next = function (options) {
+  options = options || {};
+  var NEXT_RELATION = {
+    'body': 'numer',
+    'numer': 'denom',
+    'denom': 'index',
+    'index': 'overscript',
+    'overscript': 'underscript',
+    'underscript': 'subscript',
+    'subscript': 'superscript'
+  };
+
+  if (this.anchorOffset() === this.siblings().length - 1) {
+    this.adjustPlaceholder(); // We've reached the end of this list.
+    // Is there another list to consider?
+
+    var relation = NEXT_RELATION[this.relation()];
+    var parent = this.parent();
+
+    while (relation && !parent[relation]) {
+      relation = NEXT_RELATION[relation];
+    } // We found a new relation/set of siblings...
+
+
+    if (relation) {
+      this.setSelection(0, 0, relation);
+      return;
+    } // No more siblings, check if we have a sibling cell in an array
+
+
+    if (this.parent().array) {
+      var maxCellCount = arrayCellCount(this.parent().array);
+      var cellIndex = parseInt(this.relation().match(/cell([0-9]*)$/)[1]) + 1;
+
+      while (cellIndex < maxCellCount) {
+        var cell = arrayCell(this.parent().array, cellIndex); // Some cells could be null (sparse array), so skip them
+
+        if (cell && this.setSelection(0, 0, 'cell' + cellIndex)) {
+          this.selectionDidChange();
+          return;
+        }
+
+        cellIndex += 1;
+      }
+    } // No more siblings, go up to the parent.
+
+
+    if (this.path.length === 1) {
+      // Invoke handler and perform default if they return true.
+      if (this.suppressChangeNotifications || !this.config.onMoveOutOf || this.config.onMoveOutOf(this, 'forward')) {
+        // We're at the root, so loop back
+        this.path[0].offset = 0;
+      }
+    } else {
+      // We've reached the end of the siblings. If we're a group
+      // with skipBoundary, when exiting, move one past the next atom
+      var skip = !options.iterateAll && this.parent().skipBoundary;
+      this.path.pop();
+
+      if (skip) {
+        this.next(options);
+      }
+    }
+
+    this.selectionDidChange();
+    return;
+  } // Still some siblings to go through. Move on to the next one.
+
+
+  this.setSelection(this.anchorOffset() + 1);
+  var anchor = this.anchor(); // Dive into its components, if the new anchor is a compound atom, 
+  // and allows capture of the selection by its sub-elements
+
+  if (anchor && !anchor.captureSelection) {
+    var _relation;
+
+    if (anchor.array) {
+      // Find the first non-empty cell in this array
+      var _cellIndex = 0;
+      _relation = '';
+
+      var _maxCellCount = arrayCellCount(anchor.array);
+
+      while (!_relation && _cellIndex < _maxCellCount) {
+        // Some cells could be null (sparse array), so skip them
+        if (arrayCell(anchor.array, _cellIndex)) {
+          _relation = 'cell' + _cellIndex.toString();
+        }
+
+        _cellIndex += 1;
+      }
+
+      console.assert(_relation);
+      this.path.push({
+        relation: _relation,
+        offset: 0
+      });
+      this.setSelection(0, 0, _relation);
+      return;
+    }
+
+    _relation = 'body';
+
+    while (_relation) {
+      if (Array.isArray(anchor[_relation])) {
+        this.path.push({
+          relation: _relation,
+          offset: 0
+        });
+        this.insertFirstAtom();
+        if (!options.iterateAll && anchor.skipBoundary) this.next(options);
+        return;
+      }
+
+      _relation = NEXT_RELATION[_relation];
+    }
+  }
+};
+
+EditableMathlist.prototype.previous = function (options) {
+  options = options || {};
+  var PREVIOUS_RELATION = {
+    'numer': 'body',
+    'denom': 'numer',
+    'index': 'denom',
+    'overscript': 'index',
+    'underscript': 'overscript',
+    'subscript': 'underscript',
+    'superscript': 'subscript'
+  };
+
+  if (!options.iterateAll && this.anchorOffset() === 1 && this.parent() && this.parent().skipBoundary) {
+    this.setSelection(0);
+  }
+
+  if (this.anchorOffset() < 1) {
+    // We've reached the first of these siblings.
+    // Is there another set of siblings to consider?
+    var relation = PREVIOUS_RELATION[this.relation()];
+
+    while (relation && !this.setSelection(-1, 0, relation)) {
+      relation = PREVIOUS_RELATION[relation];
+    } // Ignore the body of the subsup scaffolding and of 
+    // 'mop' atoms (for example, \sum): their body is not editable.
+
+
+    var parentType = this.parent() ? this.parent().type : 'none';
+
+    if (relation === 'body' && (parentType === 'msubsup' || parentType === 'mop')) {
+      relation = null;
+    } // We found a new relation/set of siblings...
+
+
+    if (relation) return;
+    this.adjustPlaceholder();
+    this.selectionWillChange(); // No more siblings, check if we have a sibling cell in an array
+
+    if (this.relation().startsWith('cell')) {
+      var cellIndex = parseInt(this.relation().match(/cell([0-9]*)$/)[1]) - 1;
+
+      while (cellIndex >= 0) {
+        var cell = arrayCell(this.parent().array, cellIndex);
+
+        if (cell && this.setSelection(-1, 0, 'cell' + cellIndex)) {
+          this.selectionDidChange();
+          return;
+        }
+
+        cellIndex -= 1;
+      }
+    } // No more siblings, go up to the parent.
+
+
+    if (this.path.length === 1) {
+      // Invoke handler and perform default if they return true.
+      if (this.suppressChangeNotifications || !this.config.onMoveOutOf || this.config.onMoveOutOf.bind(this)(-1)) {
+        // We're at the root, so loop back
+        this.path[0].offset = this.root.body.length - 1;
+      }
+    } else {
+      this.path.pop();
+      this.setSelection(this.anchorOffset() - 1);
+    }
+
+    this.selectionDidChange();
+    return;
+  } // If the new anchor is a compound atom, dive into its components
+
+
+  var anchor = this.anchor(); // Only dive in if the atom allows capture of the selection by
+  // its sub-elements
+
+  if (!anchor.captureSelection) {
+    var _relation2;
+
+    if (anchor.array) {
+      _relation2 = '';
+      var maxCellCount = arrayCellCount(anchor.array);
+
+      var _cellIndex2 = maxCellCount - 1;
+
+      while (!_relation2 && _cellIndex2 < maxCellCount) {
+        // Some cells could be null (sparse array), so skip them
+        if (arrayCell(anchor.array, _cellIndex2)) {
+          _relation2 = 'cell' + _cellIndex2.toString();
+        }
+
+        _cellIndex2 -= 1;
+      }
+
+      _cellIndex2 += 1;
+      console.assert(_relation2);
+      this.path.push({
+        relation: _relation2,
+        offset: arrayCell(anchor.array, _cellIndex2).length - 1
+      });
+      this.setSelection(-1, 0, _relation2);
+      return;
+    }
+
+    _relation2 = 'superscript';
+
+    while (_relation2) {
+      if (Array.isArray(anchor[_relation2])) {
+        this.path.push({
+          relation: _relation2,
+          offset: anchor[_relation2].length - 1
+        });
+        this.setSelection(-1, 0, _relation2);
+        return;
+      }
+
+      _relation2 = PREVIOUS_RELATION[_relation2];
+    }
+  } // There wasn't a component to navigate to, so...
+  // Still some siblings to go through: move on to the previous one.
+
+
+  this.setSelection(this.anchorOffset() - 1);
+
+  if (!options.iterateAll && this.sibling(0) && this.sibling(0).skipBoundary) {
+    this.previous(options);
+  }
+};
+
+EditableMathlist.prototype.move = function (dist, options) {
+  options = options || {
+    extend: false
+  };
+  var extend = options.extend || false;
+  this.removeSuggestion();
+
+  if (extend) {
+    this.extend(dist, options);
+  } else {
+    var oldPath = clone(this); // const previousParent = this.parent();
+    // const previousRelation = this.relation();
+    // const previousSiblings = this.siblings();
+
+    if (dist > 0) {
+      if (this.collapseForward()) dist--;
+
+      while (dist > 0) {
+        this.next();
+        dist--;
+      }
+    } else if (dist < 0) {
+      if (this.collapseBackward()) dist++;
+
+      while (dist !== 0) {
+        this.previous();
+        dist++;
+      }
+    } // ** @todo: can't do that without updating the path.
+    // If the siblings list we left was empty, remove the relation
+    // if (previousSiblings.length <= 1) {
+    //     if (['superscript', 'subscript', 'index'].includes(previousRelation)) {
+    //         previousParent[previousRelation] = null;
+    //     }
+    // }
+
+
+    this._announce('move', oldPath);
+  }
+};
+
+EditableMathlist.prototype.up = function (options) {
+  options = options || {
+    extend: false
+  };
+  var extend = options.extend || false;
+  this.collapseBackward();
+  var relation = this.relation();
+
+  if (relation === 'denom') {
+    if (extend) {
+      this.selectionWillChange();
+      this.path.pop();
+      this.path[this.path.length - 1].offset -= 1;
+      this.setExtent(1);
+      this.selectionDidChange();
+    } else {
+      this.setSelection(this.anchorOffset(), 0, 'numer');
+    }
+
+    this._announce('moveUp');
+  } else if (this.parent().array) {
+    // In an array
+    var colRow = arrayColRow(this.parent().array, relation);
+    colRow = arrayAdjustRow(this.parent().array, colRow, -1);
+
+    if (colRow && arrayCell(colRow)) {
+      this.path[this.path.length - 1].relation = 'cell' + arrayIndex(this.parent().array, colRow);
+      this.setSelection(this.anchorOffset());
+
+      this._announce('moveUp');
+    } else {
+      this.move(-1, options);
+    }
+  } else {
+    this._announce('line');
+  }
+};
+
+EditableMathlist.prototype.down = function (options) {
+  options = options || {
+    extend: false
+  };
+  var extend = options.extend || false;
+  this.collapseForward();
+  var relation = this.relation();
+
+  if (relation === 'numer') {
+    if (extend) {
+      this.selectionWillChange();
+      this.path.pop();
+      this.path[this.path.length - 1].offset -= 1;
+      this.setExtent(1);
+      this.selectionDidChange();
+    } else {
+      this.setSelection(this.anchorOffset(), 0, 'denom');
+    }
+
+    this._announce('moveDown');
+  } else if (this.parent().array) {
+    // In an array
+    var colRow = arrayColRow(this.parent().array, relation);
+    colRow = arrayAdjustRow(this.parent().array, colRow, +1);
+
+    if (colRow && arrayCell(colRow)) {
+      this.path[this.path.length - 1].relation = 'cell' + arrayIndex(this.parent().array, colRow);
+      this.setSelection(this.anchorOffset());
+
+      this._announce('moveDown');
+    } else {
+      this.move(+1, options);
+    }
+  } else {
+    this._announce('line');
+  }
+};
+/**
+ * Change the range of the selection
+ *
+ * @param {number} dist - The change (positive or negative) to the extent
+ * of the selection. The anchor point does not move.
+ * @method EditableMathlist#extend
+ * @private
+ */
+
+
+EditableMathlist.prototype.extend = function (dist) {
+  var offset = this.path[this.path.length - 1].offset;
+  var extent = 0;
+  var oldPath = clone(this);
+  extent = this.extent + dist;
+  var newFocusOffset = offset + extent;
+
+  if (newFocusOffset < 0 && extent !== 0) {
+    // We're trying to extend beyond the first element.
+    // Go up to the parent.
+    if (this.path.length > 1) {
+      this.selectionWillChange();
+      this.path.pop(); // this.path[this.path.length - 1].offset -= 1;
+
+      this.setExtent(-1);
+      this.selectionDidChange();
+
+      this._announce('move', oldPath);
+
+      return;
+    } // @todo exit left extend
+    // If we're at the very beginning, nothing to do.
+
+
+    offset = this.path[this.path.length - 1].offset;
+    extent = this.extent;
+  } else if (newFocusOffset >= this.siblings().length) {
+    // We're trying to extend beyond the last element.
+    // Go up to the parent
+    if (this.path.length > 1) {
+      this.selectionWillChange();
+      this.path.pop();
+      this.path[this.path.length - 1].offset -= 1;
+      this.setExtent(1);
+      this.selectionDidChange();
+
+      this._announce('move', oldPath);
+
+      return;
+    } // @todo exit right extend
+
+
+    if (this.isCollapsed()) {
+      offset -= 1;
+    }
+
+    extent -= 1;
+  }
+
+  this.setSelection(offset, extent);
+
+  this._announce('move', oldPath);
+};
+/**
+ * Move the selection focus to the next/previous point of interest.
+ * A point of interest is an atom of a different type (mbin, mord, etc...)
+ * than the current focus.
+ * If `extend` is true, the selection will be extended. Otherwise, it is
+ * collapsed, then moved.
+ * @param {number} dir +1 to skip forward, -1 to skip back
+ * @param {Object.<string, any>} options
+ * @method EditableMathlist#skip
+ * @private
+ */
+
+
+EditableMathlist.prototype.skip = function (dir, options) {
+  options = options || {
+    extend: false
+  };
+  var extend = options.extend || false;
+  dir = dir < 0 ? -1 : +1;
+  var oldPath = clone(this);
+  var siblings = this.siblings();
+  var focus = this.focusOffset();
+  var offset = focus + dir;
+  if (extend) offset = Math.min(Math.max(0, offset), siblings.length - 1);
+
+  if (offset < 0 || offset >= siblings.length) {
+    // If we've reached the end, just move out of the list
+    this.move(dir, options);
+    return;
+  }
+
+  if (siblings[offset] && siblings[offset].mode === 'text') {
+    // We're in a text zone, skip word by word
+    offset = this.wordBoundaryOffset(offset, dir);
+
+    if (offset < 0 && !extend) {
+      this.setSelection(0);
+      return;
+    }
+
+    if (offset > siblings.length) {
+      this.setSelection(siblings.length - 1);
+      this.move(dir, options);
+      return;
+    }
+  } else {
+    var type = siblings[offset] ? siblings[offset].type : '';
+
+    if (type === 'mopen' && dir > 0 || type === 'mclose' && dir < 0) {
+      // We're right before (or after) an opening (or closing)
+      // fence. Skip to the balanced element (in level, but not necessarily in
+      // fence symbol).
+      var level = type === 'mopen' ? 1 : -1;
+      offset += dir > 0 ? 1 : -1;
+
+      while (offset >= 0 && offset < siblings.length && level !== 0) {
+        if (siblings[offset].type === 'mopen') {
+          level += 1;
+        } else if (siblings[offset].type === 'mclose') {
+          level -= 1;
+        }
+
+        offset += dir;
+      }
+
+      if (level !== 0) {
+        // We did not find a balanced element. Just move a little.
+        offset = focus + dir;
+      }
+
+      if (dir > 0) offset = offset - 1;
+    } else {
+      while (siblings[offset] && siblings[offset].mode === 'math' && siblings[offset].type === type) {
+        offset += dir;
+      }
+
+      offset -= dir > 0 ? 1 : 0;
+    }
+  }
+
+  if (extend) {
+    var anchor = this.anchorOffset();
+    this.setSelection(anchor, offset - anchor);
+  } else {
+    this.setSelection(offset);
+  }
+
+  this._announce('move', oldPath);
+};
+/**
+ * Move to the next/previous expression boundary
+ * @method EditableMathlist#jump
+ * @private
+ */
+
+
+EditableMathlist.prototype.jump = function (dir, options) {
+  options = options || {
+    extend: false
+  };
+  var extend = options.extend || false;
+  dir = dir < 0 ? -1 : +1;
+  var siblings = this.siblings();
+  var focus = this.focusOffset();
+  if (dir > 0) focus = Math.min(focus + 1, siblings.length - 1);
+  var offset = dir < 0 ? 0 : siblings.length - 1;
+
+  if (extend) {
+    this.extend(offset - focus);
+  } else {
+    this.move(offset - focus);
+  }
+};
+
+EditableMathlist.prototype.jumpToMathFieldBoundary = function (dir, options) {
+  options = options || {
+    extend: false
+  };
+  var extend = options.extend || false;
+  dir = dir || +1;
+  dir = dir < 0 ? -1 : +1;
+  var oldPath = clone(this);
+  var path = [{
+    relation: "body",
+    offset: this.path[0].offset
+  }];
+  var extent;
+
+  if (!extend) {
+    // Change the anchor to the end/start of the root expression
+    path[0].offset = dir < 0 ? 0 : this.root.body.length - 1;
+    extent = 0;
+  } else {
+    // Don't change the anchor, but update the extent
+    if (dir < 0) {
+      if (path[0].offset > 0) {
+        extent = -path[0].offset;
+      } else {// @todo exit left extend
+      }
+    } else {
+      if (path[0].offset < this.siblings().length - 1) {
+        extent = this.siblings().length - 1 - path[0].offset;
+      } else {// @todo exit right extend
+      }
+    }
+  }
+
+  this.setPath(path, extent);
+
+  this._announce('move', oldPath);
+};
+/**
+ * Move to the next/previous placeholder or empty child list.
+ * @return {boolean} False if no placeholder found and did not move
+ * @method EditableMathlist#leap
+ * @private
+ */
+
+
+EditableMathlist.prototype.leap = function (dir, callHandler) {
+  var _this = this;
+
+  dir = dir || +1;
+  dir = dir < 0 ? -1 : +1;
+  callHandler = callHandler || true;
+  var savedSuppressChangeNotifications = this.suppressChangeNotifications;
+  this.suppressChangeNotifications = true;
+  var oldPath = clone(this);
+  var oldExtent = this.extent;
+  this.move(dir);
+
+  if (this.anchor().type === 'placeholder') {
+    // If we're already at a placeholder, move by one more (the placeholder
+    // is right after the insertion point)
+    this.move(dir);
+  } // Candidate placeholders are atom of type 'placeholder'
+  // or empty children list (except for the root: if the root is empty,
+  // it is not a valid placeholder)
+
+
+  var placeholders = this.filter(function (path, atom) {
+    return atom.type === 'placeholder' || path.length > 1 && _this.siblings().length === 1;
+  }, dir); // If no placeholders were found, call handler or move to the next focusable
+  // element in the document
+
+  if (placeholders.length === 0) {
+    // Restore the selection
+    this.setPath(oldPath, oldExtent);
+
+    if (callHandler) {
+      if (this.config.onTabOutOf) {
+        this.config.onTabOutOf(this.target, dir > 0 ? 'forward' : 'backward');
+      } else if (document.activeElement) {
+        var focussableElements = "a[href]:not([disabled]),\n                    button:not([disabled]),\n                    textarea:not([disabled]),\n                    input[type=text]:not([disabled]),\n                    select:not([disabled]),\n                    [contentEditable=\"true\"],\n                    [tabindex]:not([disabled]):not([tabindex=\"-1\"])"; // Get all the potentially focusable elements
+        // and exclude (1) those that are invisible (width and height = 0)
+        // (2) not the active element
+        // (3) the ancestor of the active element
+
+        var focussable = Array.prototype.filter.call(document.querySelectorAll(focussableElements), function (element) {
+          return (element.offsetWidth > 0 || element.offsetHeight > 0) && !element.contains(document.activeElement) || element === document.activeElement;
+        });
+        var index = focussable.indexOf(document.activeElement) + dir;
+        if (index < 0) index = focussable.length - 1;
+        if (index >= focussable.length) index = 0;
+        focussable[index].focus();
+      }
+    }
+
+    return false;
+  } // Set the selection to the next placeholder
+
+
+  this.selectionWillChange();
+  this.setPath(placeholders[0]);
+  if (this.anchor().type === 'placeholder') this.setExtent(-1);
+
+  this._announce('move', oldPath);
+
+  this.selectionDidChange();
+  this.suppressChangeNotifications = savedSuppressChangeNotifications;
+  return true;
+};
+
+EditableMathlist.prototype.anchorMode = function () {
+  var anchor = this.isCollapsed() ? this.anchor() : this.sibling(1);
+  var result;
+
+  if (anchor) {
+    if (anchor.type === 'commandliteral' || anchor.type === 'command') return 'command';
+    result = anchor.mode;
+  }
+
+  var i = 1;
+  var ancestor = this.ancestor(i);
+
+  while (!result && ancestor) {
+    if (ancestor) result = ancestor.mode;
+    i += 1;
+    ancestor = this.ancestor(i);
+  }
+
+  return result;
+};
+
+EditableMathlist.prototype.anchorStyle = function () {
+  var anchor = this.isCollapsed() ? this.anchor() : this.sibling(1);
+  var result;
+
+  if (anchor && anchor.type !== 'first') {
+    if (anchor.type === 'commandliteral' || anchor.type === 'command') return {};
+    result = {
+      color: anchor.color,
+      backgroundColor: anchor.backgroundColor,
+      fontFamily: anchor.fontFamily,
+      fontShape: anchor.fontShape,
+      fontSeries: anchor.fontSeries,
+      fontSize: anchor.fontSize
+    };
+  }
+
+  var i = 1;
+  var ancestor = this.ancestor(i);
+
+  while (!result && ancestor) {
+    if (ancestor) {
+      result = {
+        color: ancestor.color,
+        backgroundColor: ancestor.backgroundColor,
+        fontFamily: ancestor.fontFamily,
+        fontShape: ancestor.fontShape,
+        fontSeries: ancestor.fontSeries,
+        fontSize: ancestor.fontSize
+      };
+    }
+
+    i += 1;
+    ancestor = this.ancestor(i);
+  }
+
+  return result;
+};
+
+function removeParen(list) {
+  if (!list) return undefined;
+
+  if (list.length === 1 && list[0].type === 'leftright' && list[0].leftDelim === '(') {
+    list = list[0].body;
+  }
+
+  return list;
+}
+/**
+ * If it's a fraction with a parenthesized numerator or denominator
+ * remove the parentheses
+ * */
+
+
+EditableMathlist.prototype.simplifyParen = function (atoms) {
+  var _this2 = this;
+
+  if (atoms && this.config.removeExtraneousParentheses) {
+    for (var i = 0; atoms[i]; i++) {
+      if (atoms[i].type === 'leftright' && atoms[i].leftDelim === '(') {
+        if (Array.isArray(atoms[i].body)) {
+          var genFracCount = 0;
+          var genFracIndex = 0;
+          var nonGenFracCount = 0;
+
+          for (var j = 0; atoms[i].body; j++) {
+            if (atoms[i].body[j].type === 'genfrac') {
+              genFracCount++;
+              genFracIndex = j;
+            }
+
+            if (atoms[i].body[j].type !== 'first') nonGenFracCount++;
+          }
+
+          if (nonGenFracCount === 0 && genFracCount === 1) {
+            // This is a single frac inside a leftright: remove the leftright
+            atoms[i] = atoms[i].body[genFracIndex];
+          }
+        }
+      }
+    }
+
+    atoms.forEach(function (atom) {
+      if (atom.type === 'genfrac') {
+        _this2.simplifyParen(atom.numer);
+
+        _this2.simplifyParen(atom.denom);
+
+        atom.numer = removeParen(atom.numer);
+        atom.denom = removeParen(atom.denom);
+      }
+
+      if (atom.superscript) {
+        _this2.simplifyParen(atom.superscript);
+
+        atom.superscript = removeParen(atom.superscript);
+      }
+
+      if (atom.subscript) {
+        _this2.simplifyParen(atom.subscript);
+
+        atom.subscript = removeParen(atom.subscript);
+      }
+
+      if (atom.underscript) {
+        _this2.simplifyParen(atom.underscript);
+
+        atom.underscript = removeParen(atom.underscript);
+      }
+
+      if (atom.overscript) {
+        _this2.simplifyParen(atom.overscript);
+
+        atom.overscript = removeParen(atom.overscript);
+      }
+
+      if (atom.index) {
+        _this2.simplifyParen(atom.index);
+
+        atom.index = removeParen(atom.index);
+      }
+
+      if (atom.type === 'surd') {
+        _this2.simplifyParen(atom.body);
+
+        atom.body = removeParen(atom.body);
+      } else if (atom.body && Array.isArray(atom.body)) {
+        _this2.simplifyParen(atom.body);
+      }
+
+      if (atom.array) {
+        for (var _i4 = arrayCellCount(atom.array); _i4 >= 0; _i4--) {
+          _this2.simplifyParen(arrayCell(atom.array, _i4));
+        }
+      }
+    });
+  }
+};
+
+function applyStyleToUnstyledAtoms(atom, style) {
+  if (!atom || !style) return;
+
+  if (Array.isArray(atom)) {
+    // Apply styling options to each atom
+    atom.forEach(function (x) {
+      return applyStyleToUnstyledAtoms(x, style);
+    });
+  } else if (_typeof(atom) === 'object') {
+    if (!atom.color && !atom.backgroundColor && !atom.fontFamily && !atom.fontShape && !atom.fontSeries && !atom.fontSize) {
+      atom.applyStyle(style);
+      applyStyleToUnstyledAtoms(atom.body, style);
+      applyStyleToUnstyledAtoms(atom.numer, style);
+      applyStyleToUnstyledAtoms(atom.denom, style);
+      applyStyleToUnstyledAtoms(atom.index, style);
+      applyStyleToUnstyledAtoms(atom.overscript, style);
+      applyStyleToUnstyledAtoms(atom.underscript, style);
+      applyStyleToUnstyledAtoms(atom.subscript, style);
+      applyStyleToUnstyledAtoms(atom.superscript, style);
+    }
+  }
+}
+/**
+ * @param {string} s
+ * @param {Object.<string, any>} options
+ * @param {string} options.insertionMode -
+ *    * 'replaceSelection' (default)
+ *    * 'replaceAll'
+ *    * 'insertBefore'
+ *    * 'insertAfter'
+ *
+ * @param {string} options.selectionMode - Describes where the selection
+ * will be after the insertion:
+ *    * `'placeholder'`: the selection will be the first available placeholder
+ * in the item that has been inserted) (default)
+ *    * `'after'`: the selection will be an insertion point after the item that
+ * has been inserted),
+ *    * `'before'`: the selection will be an insertion point before
+ * the item that has been inserted) or 'item' (the item that was inserted will
+ * be selected).
+ *
+ * @param {string} options.placeholder - The placeholder string, if necessary
+ *
+ * @param {string} options.format - The format of the string `s`:
+ *    * `'auto'`: the string is interpreted as a latex fragment or command or 
+ * ASCIIMath (default)
+ *    * `'latex'`: the string is interpreted strictly as a latex fragment
+ *
+ * @param {string} options.smartFence - If true, promote plain fences, e.g. `(`,
+ * as `\left...\right` or `\mleft...\mright`
+ *
+ * @param {boolean} options.suppressChangeNotifications - If true, the
+ * handlers for the contentWillChange, contentDidChange, selectionWillChange and
+ * selectionDidChange notifications will not be invoked. Default `false`.
+ * 
+ * @param {object} options.style
+ * 
+ * @method EditableMathlist#insert
+ */
+
+
+EditableMathlist.prototype.insert = function (s, options) {
+  options = options || {}; // Try to insert a smart fence.
+
+  if (options.smartFence && this._insertSmartFence(s, options.style)) {
+    return;
+  }
+
+  var suppressChangeNotifications = this.suppressChangeNotifications;
+
+  if (options.suppressChangeNotifications) {
+    this.suppressChangeNotifications = true;
+  } // Dispatch notifications
+
+
+  this.contentWillChange();
+  var contentWasChanging = this.suppressChangeNotifications;
+  this.suppressChangeNotifications = true;
+  if (!options.insertionMode) options.insertionMode = 'replaceSelection';
+  if (!options.selectionMode) options.selectionMode = 'placeholder';
+  if (!options.format) options.format = 'auto';
+  options.macros = options.macros || this.config.macros;
+  var anchorMode = options.mode || this.anchorMode();
+  var mathlist; // Save the content of the selection, if any
+
+  var args = [this.getSelectedAtoms()]; // If a placeholder was specified, use it
+
+  if (options.placeholder !== undefined) {
+    args['?'] = options.placeholder;
+  } // Delete any selected items
+
+
+  if (options.insertionMode === 'replaceSelection' && !this.isCollapsed()) {
+    this.delete_();
+  } else if (options.insertionMode === 'replaceAll') {
+    // Remove all the children of root, save for the 'first' atom
+    this.root.body.splice(1);
+    this.path = [{
+      relation: 'body',
+      offset: 0
+    }];
+    this.extent = 0;
+  } else if (options.insertionMode === 'insertBefore') {
+    this.collapseBackward();
+  } else if (options.insertionMode === 'insertAfter') {
+    this.collapseForward();
+  } // Delete any placeholders before or after the insertion point
+
+
+  var siblings = this.siblings();
+  var firstOffset = this.startOffset();
+
+  if (firstOffset + 1 < siblings.length && siblings[firstOffset + 1] && siblings[firstOffset + 1].type === 'placeholder') {
+    this.delete_(1);
+  } else if (firstOffset > 0 && siblings[firstOffset] && siblings[firstOffset].type === 'placeholder') {
+    this.delete_(-1);
+  }
+
+  if (anchorMode === 'math' && options.format === 'ASCIIMath') {
+    s = parseMathString(s, _objectSpread({}, this.config, {
+      format: 'ASCIIMath'
+    }));
+    mathlist = _parser.default.parseTokens(_lexer.default.tokenize(s), 'math', null, options.macros, false); // Simplify result.
+
+    this.simplifyParen(mathlist);
+  } else if (anchorMode !== 'text' && options.format === 'auto') {
+    if (anchorMode === 'command') {
+      // Short-circuit the tokenizer and parser if in command mode
+      mathlist = [];
+      var _iteratorNormalCompletion6 = true;
+      var _didIteratorError6 = false;
+      var _iteratorError6 = undefined;
+
+      try {
+        for (var _iterator6 = s[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
+          var c = _step6.value;
+
+          if (_definitions.default.COMMAND_MODE_CHARACTERS.test(c)) {
+            mathlist.push(new _mathAtom.default.MathAtom('command', 'command', c));
+          }
+        }
+      } catch (err) {
+        _didIteratorError6 = true;
+        _iteratorError6 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
+            _iterator6.return();
+          }
+        } finally {
+          if (_didIteratorError6) {
+            throw _iteratorError6;
+          }
+        }
+      }
+    } else if (s === "\x1B") {
+      // Insert an 'esc' character triggers the command mode
+      mathlist = [new _mathAtom.default.MathAtom('command', 'command', '\\')];
+    } else {
+      s = parseMathString(s, this.config);
+
+      if (args[0]) {
+        // There was a selection, we'll use it for #@
+        s = s.replace(/(^|[^\\])#@/g, '$1#0');
+      } else if (/(^|[^\\])#@/.test(s)) {
+        // If we're inserting a latex fragment that includes a #@ argument
+        // substitute the preceding `mord` or text mode atoms for it.
+        s = s.replace(/(^|[^\\])#@/g, '$1#0');
+        args[0] = this.extractArgBeforeInsertionPoint(); // Delete the implicit argument
+
+        this._deleteAtoms(-args[0].length); // If the implicit argument was empty, remove it from the args list.
+
+
+        if (Array.isArray(args[0]) && args[0].length === 0) args[0] = undefined;
+      } else {
+        // No selection, no 'mord' before. Let's make '#@' a placeholder.
+        s = s.replace(/(^|[^\\])#@/g, '$1#?');
+      }
+
+      mathlist = _parser.default.parseTokens(_lexer.default.tokenize(s), anchorMode, args, options.macros, options.smartFence); // Simplify result.
+
+      this.simplifyParen(mathlist);
+    }
+  } else if (options.format === 'latex') {
+    mathlist = _parser.default.parseTokens(_lexer.default.tokenize(s), anchorMode, args, options.macros, options.smartFence);
+  } else if (anchorMode === 'text' || options.format === 'text') {
+    // Map special TeX characters to alternatives
+    // Must do this one first, since other replacements include backslash
+    s = s.replace(/\\/g, '\\textbackslash ');
+    s = s.replace(/#/g, '\\#');
+    s = s.replace(/\$/g, '\\$');
+    s = s.replace(/%/g, '\\%');
+    s = s.replace(/&/g, '\\&'); // s = s.replace(/:/g, '\\colon');     // text colon?
+    // s = s.replace(/\[/g, '\\lbrack');
+    // s = s.replace(/]/g, '\\rbrack');
+
+    s = s.replace(/_/g, '\\_');
+    s = s.replace(/{/g, '\\textbraceleft ');
+    s = s.replace(/}/g, '\\textbraceright ');
+    s = s.replace(/\^/g, '\\textasciicircum ');
+    s = s.replace(/~/g, '\\textasciitilde ');
+    s = s.replace(/£/g, '\\textsterling ');
+    mathlist = _parser.default.parseTokens(_lexer.default.tokenize(s), 'text', args, options.macros, false);
+  } // Some atoms may already have a style (for example if there was an 
+  // argument, i.e. the selection, that this was applied to).
+  // So, don't apply style to atoms that are already styled, but *do* 
+  // apply it to newly created atoms that have no style yet.
+
+
+  applyStyleToUnstyledAtoms(mathlist, options.style); // Insert the mathlist at the position following the anchor
+
+  var parent = this.parent();
+
+  if (this.config.removeExtraneousParentheses && parent && parent.type === 'leftright' && parent.leftDelim === '(' && mathlist && mathlist.length === 1 && mathlist[0].type === 'genfrac') {
+    // If the insert is fraction inside a lefright, remove the leftright
+    this.path.pop();
+    this.siblings()[this.anchorOffset()] = mathlist[0];
+  } else {
+    Array.prototype.splice.apply(this.siblings(), [this.anchorOffset() + 1, 0].concat(mathlist));
+  } // If needed, make sure there's a first atom in the siblings list
+
+
+  this.insertFirstAtom(); // Prepare to dispatch notifications
+  // (for selection changes, then content change)
+
+  this.suppressChangeNotifications = contentWasChanging; // Update the anchor's location
+
+  if (options.selectionMode === 'placeholder') {
+    // Move to the next placeholder
+    var newPlaceholders = [];
+    var _iteratorNormalCompletion7 = true;
+    var _didIteratorError7 = false;
+    var _iteratorError7 = undefined;
+
+    try {
+      for (var _iterator7 = mathlist[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
+        var atom = _step7.value;
+        newPlaceholders = newPlaceholders.concat(atom.filter(function (atom) {
+          return atom.type === 'placeholder';
+        }));
+      }
+    } catch (err) {
+      _didIteratorError7 = true;
+      _iteratorError7 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
+          _iterator7.return();
+        }
+      } finally {
+        if (_didIteratorError7) {
+          throw _iteratorError7;
+        }
+      }
+    }
+
+    if (newPlaceholders.length === 0 || !this.leap(+1, false)) {
+      // No placeholder found, move to right after what we just inserted
+      this.setSelection(this.anchorOffset() + mathlist.length); // this.path[this.path.length - 1].offset += mathlist.length;
+    } else {
+      this._announce('move'); // should have placeholder selected
+
+    }
+  } else if (options.selectionMode === 'before') {// Do nothing: don't change the anchorOffset.
+  } else if (options.selectionMode === 'after') {
+    this.setSelection(this.anchorOffset() + mathlist.length);
+  } else if (options.selectionMode === 'item') {
+    this.setSelection(this.anchorOffset(), mathlist.length);
+  }
+
+  this.contentDidChange();
+  this.suppressChangeNotifications = suppressChangeNotifications;
+};
+/**
+ * Insert a smart fence '(', '{', '[', etc...
+ * If not handled (because `fence` wasn't a fence), return false.
+ * @param {string} fence
+ * @param {object} style
+ * @return {boolean}
+ */
+
+
+EditableMathlist.prototype._insertSmartFence = function (fence, style) {
+  var parent = this.parent(); // We're inserting a middle punctuation, for example as in {...|...}
+
+  if (parent.type === 'leftright' && parent.leftDelim !== '|') {
+    if (/\||\\vert|\\Vert|\\mvert|\\mid/.test(fence)) {
+      this.insert('\\,\\middle' + fence + '\\, ', {
+        mode: 'math',
+        format: 'latex',
+        style: style
+      });
+      return true;
+    }
+  }
+
+  if (fence === '{' || fence === '\\{') fence = '\\lbrace';
+  if (fence === '}' || fence === '\\}') fence = '\\rbrace';
+  if (fence === '[' || fence === '\\[') fence = '\\lbrack';
+  if (fence === ']' || fence === '\\]') fence = '\\rbrack';
+  var rDelim = _definitions.default.RIGHT_DELIM[fence];
+
+  if (rDelim && !(parent.type === 'leftright' && parent.leftDelim === '|')) {
+    // We have a valid open fence as input
+    var s = '';
+    var collapsed = this.isCollapsed() || this.anchor().type === 'placeholder';
+
+    if (this.sibling(0).isFunction) {
+      // We're before a function (e.g. `\sin`, or 'f'):  this is an 
+      // argument list. 
+      // Use `\mleft...\mright'.
+      s = '\\mleft' + fence + '\\mright';
+    } else {
+      s = '\\left' + fence + '\\right';
+    }
+
+    s += collapsed ? '?' : rDelim;
+    var content = [];
+
+    if (collapsed) {
+      // content = this.siblings().slice(this.anchorOffset() + 1);
+      content = this.siblings().splice(this.anchorOffset() + 1, this.siblings().length);
+    }
+
+    this.insert(s, {
+      mode: 'math',
+      format: 'latex',
+      style: style
+    });
+
+    if (collapsed) {
+      // Move everything that was after the anchor into the leftright
+      this.sibling(0).body = content;
+      this.move(-1);
+    }
+
+    return true;
+  } // We did not have a valid open fence. Maybe it's a close fence?
+
+
+  var lDelim;
+
+  for (var delim in _definitions.default.RIGHT_DELIM) {
+    if (_definitions.default.RIGHT_DELIM.hasOwnProperty(delim)) {
+      if (fence === _definitions.default.RIGHT_DELIM[delim]) lDelim = delim;
+    }
+  }
+
+  if (lDelim) {
+    // We found the matching open fence, so it was a valid close fence.
+    // Note that `lDelim` may not match `fence`. That's OK.
+    // If we're the last atom inside a 'leftright',
+    // update the parent
+    if (parent && parent.type === 'leftright' && this.endOffset() === this.siblings().length - 1) {
+      this.contentWillChange();
+      parent.rightDelim = fence;
+      this.move(+1);
+      this.contentDidChange();
+      return true;
+    } // If we have a 'leftright' sibling to our left
+    // with an indeterminate right fence,
+    // move what's between us and the 'leftright' inside the leftright
+
+
+    var siblings = this.siblings();
+    var i;
+
+    for (i = this.endOffset(); i >= 0; i--) {
+      if (siblings[i].type === 'leftright' && siblings[i].rightDelim === '?') break;
+    }
+
+    if (i >= 0) {
+      this.contentWillChange();
+      siblings[i].rightDelim = fence;
+      siblings[i].body = siblings[i].body.concat(siblings.slice(i + 1, this.endOffset() + 1));
+      siblings.splice(i + 1, this.endOffset() - i);
+      this.setSelection(i);
+      this.contentDidChange();
+      return true;
+    } // If we're inside a 'leftright', but not the last atom,
+    // and the 'leftright' right delim is indeterminate
+    // adjust the body (put everything after the insertion point outside)
+
+
+    if (parent && parent.type === 'leftright' && parent.rightDelim === '?') {
+      this.contentWillChange();
+      parent.rightDelim = fence;
+      var tail = siblings.slice(this.endOffset() + 1);
+      siblings.splice(this.endOffset() + 1);
+      this.path.pop();
+      Array.prototype.splice.apply(this.siblings(), [this.endOffset() + 1, 0].concat(tail));
+      this.contentDidChange();
+      return true;
+    } // Is our grand-parent a 'leftright'?
+    // If `\left(\frac{1}{x|}\right?` with the caret at `|`
+    // go up to the 'leftright' and apply it there instead
+
+
+    var grandparent = this.ancestor(2);
+
+    if (grandparent && grandparent.type === 'leftright' && grandparent.rightDelim === '?' && this.endOffset() === siblings.length - 1) {
+      this.move(1);
+      return this._insertSmartFence(fence, style);
+    } // Meh... We couldn't find a matching open fence. Just insert the
+    // closing fence as a regular character
+
+
+    this.insert(fence, {
+      mode: 'math',
+      format: 'latex',
+      style: style
+    });
+    return true;
+  }
+
+  return false;
+};
+
+EditableMathlist.prototype.positionInsertionPointAfterCommitedCommand = function () {
+  var siblings = this.siblings();
+  var command = this.commandOffsets();
+  var i = command.start;
+
+  while (i < command.end && !siblings[i].suggestion) {
+    i++;
+  }
+
+  this.setSelection(i - 1);
+};
+
+EditableMathlist.prototype.removeSuggestion = function () {
+  var siblings = this.siblings(); // Remove all `suggestion` atoms
+
+  for (var i = siblings.length - 1; i >= 0; i--) {
+    if (siblings[i].suggestion) {
+      siblings.splice(i, 1);
+    }
+  }
+};
+
+EditableMathlist.prototype.insertSuggestion = function (s, l) {
+  this.removeSuggestion();
+  var mathlist = []; // Make a mathlist from the string argument with the `suggestion` property set
+
+  var subs = s.substr(l);
+  var _iteratorNormalCompletion8 = true;
+  var _didIteratorError8 = false;
+  var _iteratorError8 = undefined;
+
+  try {
+    for (var _iterator8 = subs[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
+      var c = _step8.value;
+      var atom = new _mathAtom.default.MathAtom('command', 'command', c);
+      atom.suggestion = true;
+      mathlist.push(atom);
+    } // Splice in the mathlist after the insertion point, but don't change the
+    // insertion point
+
+  } catch (err) {
+    _didIteratorError8 = true;
+    _iteratorError8 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion8 && _iterator8.return != null) {
+        _iterator8.return();
+      }
+    } finally {
+      if (_didIteratorError8) {
+        throw _iteratorError8;
+      }
+    }
+  }
+
+  Array.prototype.splice.apply(this.siblings(), [this.anchorOffset() + 1, 0].concat(mathlist));
+};
+/**
+ * Delete sibling atoms
+ * @method EditableMathlist#_deleteAtoms
+ * @private
+ */
+
+
+EditableMathlist.prototype._deleteAtoms = function (count) {
+  if (count > 0) {
+    this.siblings().splice(this.anchorOffset() + 1, count);
+  } else {
+    this.siblings().splice(this.anchorOffset() + count + 1, -count);
+    this.setSelection(this.anchorOffset() + count);
+  }
+};
+/**
+ * Delete multiple characters
+ * @method EditableMathlist#delete
+ */
+
+
+EditableMathlist.prototype.delete = function (count) {
+  count = count || 0;
+
+  if (count === 0) {
+    this.delete_(0);
+  } else if (count > 0) {
+    while (count > 0) {
+      this.delete_(+1);
+      count--;
+    }
+  } else {
+    while (count < 0) {
+      this.delete_(-1);
+      count++;
+    }
+  }
+};
+/**
+ * @param {number} dir If the selection is not collapsed, and dir is
+ * negative, delete backwards, starting with the anchor atom.
+ * That is, delete(-1) will delete only the anchor atom.
+ * If dir = 0, delete only if the selection is not collapsed
+ * @method EditableMathlist#delete_
+ * @instance
+ */
+
+
+EditableMathlist.prototype.delete_ = function (dir) {
+  // Dispatch notifications
+  this.contentWillChange();
+  this.selectionWillChange();
+  var contentWasChanging = this.suppressChangeNotifications;
+  this.suppressChangeNotifications = true;
+  dir = dir || 0;
+  dir = dir < 0 ? -1 : dir > 0 ? +1 : dir;
+  this.removeSuggestion();
+
+  if (this.parent().array) {
+    if (dir < 0 && this.startOffset() === 0) {
+      var array = this.parent().array;
+
+      if (arrayFirstCellByRow(array) === this.relation()) {
+        var _this$siblings;
+
+        // (1) First cell:
+        // delete array, replace it with linearized content
+        var atoms = arrayJoinRows(array);
+        this.path.pop();
+
+        (_this$siblings = this.siblings()).splice.apply(_this$siblings, [this.anchorOffset(), 1].concat(_toConsumableArray(atoms)));
+
+        this.setSelection(this.anchorOffset() - 1, atoms.length);
+      } else {
+        var colRow = arrayColRow(array, this.relation());
+
+        if (colRow.col === 0) {
+          // (2) First (non-empty) column (but not first row):
+          // Move to the end of the last cell of the previous row
+          var dest = arrayAdjustRow(array, colRow, -1);
+          dest.col = array[dest.row].length - 1;
+          this.path[this.path.length - 1].relation = 'cell' + arrayIndex(array, dest);
+          var destLength = array[dest.row][dest.col].length; // (2.1) Linearize it and merge it with last cell of previous row
+          // (note that atoms could be empty if there are no non-empty
+          // cells left in the row)
+
+          var _atoms = arrayJoinColumns(array[colRow.row]);
+
+          array[dest.row][dest.col] = array[dest.row][dest.col].concat(_atoms);
+          this.setSelection(destLength - 1, _atoms.length); // (2.2) Remove row
+
+          arrayRemoveRow(array, colRow.row);
+        } else {
+          // (3) Non-first column
+          // (3.1) If column is empty, remove it
+          if (arrayColumnCellCount(array, colRow.col) === 0) {
+            arrayRemoveColumn(array, colRow.col);
+            colRow.col -= 1;
+            this.path[this.path.length - 1].relation = 'cell' + arrayIndex(array, colRow);
+            var destCell = array[colRow.row][colRow.col];
+            this.setSelection(destCell.length - 1, 0);
+          } // (3.2) merge cell with cell in previous column
+
+        }
+      } // Dispatch notifications
+
+
+      this.suppressChangeNotifications = contentWasChanging;
+      this.selectionDidChange();
+      this.contentDidChange();
+      return;
+    }
+  }
+
+  var siblings = this.siblings();
+
+  if (!this.isCollapsed()) {
+    // There is a selection extent. Delete all the atoms within it.
+    var first = this.startOffset() + 1;
+    var last = this.endOffset() + 1;
+
+    this._announce('deleted', null, siblings.slice(first, last));
+
+    siblings.splice(first, last - first); // Adjust the anchor
+
+    this.setSelection(first - 1);
+  } else {
+    var anchorOffset = this.anchorOffset();
+
+    if (dir < 0) {
+      if (anchorOffset !== 0) {
+        // We're not at the begining of the sibling list.
+        // If the previous sibling is a compound (fractions, group),
+        // just move into it, otherwise delete it
+        var sibling = this.sibling(0);
+
+        if (sibling.type === 'leftright') {
+          sibling.rightDelim = '?';
+          this.move(-1);
+        } else if (!sibling.captureSelection && /^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(sibling.type)) {
+          this.move(-1);
+        } else {
+          this._announce('delete', null, siblings.slice(anchorOffset, anchorOffset + 1));
+
+          siblings.splice(anchorOffset, 1);
+          this.setSelection(anchorOffset - 1);
+        }
+      } else {
+        // We're at the beginning of the sibling list.
+        // Delete what comes before
+        var relation = this.relation();
+
+        if (relation === 'superscript' || relation === 'subscript') {
+          var supsub = this.parent()[relation].filter(function (atom) {
+            return atom.type !== 'placeholder' && atom.type !== 'first';
+          });
+          this.parent()[relation] = null;
+          this.path.pop();
+          Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 0].concat(supsub));
+          this.setSelection(this.anchorOffset() - 1);
+
+          this._announce('deleted: ' + relation);
+        } else if (relation === 'denom') {
+          // Fraction denominator
+          var numer = this.parent().numer.filter(function (atom) {
+            return atom.type !== 'placeholder' && atom.type !== 'first';
+          });
+          var denom = this.parent().denom.filter(function (atom) {
+            return atom.type !== 'placeholder' && atom.type !== 'first';
+          });
+          this.path.pop();
+          Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 1].concat(denom));
+          Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 0].concat(numer));
+          this.setSelection(this.anchorOffset() + numer.length - 1);
+
+          this._announce('deleted: denominator');
+        } else if (relation === 'body') {
+          var body = this.siblings().filter(function (atom) {
+            return atom.type !== 'placeholder';
+          });
+
+          if (this.path.length > 1) {
+            body.shift(); // Remove the 'first' atom
+
+            this.path.pop();
+            Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 1].concat(body));
+            this.setSelection(this.anchorOffset() - 1);
+
+            this._announce('deleted: root');
+          }
+        } else {
+          this.move(-1);
+          this.delete(-1);
+        }
+      }
+    } else if (dir > 0) {
+      if (anchorOffset !== siblings.length - 1) {
+        if (/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)) {
+          this.move(+1);
+        } else {
+          this._announce('delete', null, siblings.slice(anchorOffset + 1, anchorOffset + 2));
+
+          siblings.splice(anchorOffset + 1, 1);
+        }
+      } else {
+        // We're at the end of the sibling list, delete what comes next
+        var _relation3 = this.relation();
+
+        if (_relation3 === 'numer') {
+          var _numer = this.parent().numer.filter(function (atom) {
+            return atom.type !== 'placeholder' && atom.type !== 'first';
+          });
+
+          var _denom = this.parent().denom.filter(function (atom) {
+            return atom.type !== 'placeholder' && atom.type !== 'first';
+          });
+
+          this.path.pop();
+          Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 1].concat(_denom));
+          Array.prototype.splice.apply(this.siblings(), [this.anchorOffset(), 0].concat(_numer));
+          this.setSelection(this.anchorOffset() + _numer.length - 1);
+
+          this._announce('deleted: numerator');
+        } else {
+          this.move(1);
+          this.delete(1);
+        }
+      }
+    }
+  } // Dispatch notifications
+
+
+  this.suppressChangeNotifications = contentWasChanging;
+  this.selectionDidChange();
+  this.contentDidChange();
+};
+/**
+ * @method EditableMathlist#moveToNextPlaceholder_
+ */
+
+
+EditableMathlist.prototype.moveToNextPlaceholder_ = function () {
+  this.leap(+1);
+};
+/**
+ * @method EditableMathlist#moveToPreviousPlaceholder_
+ */
+
+
+EditableMathlist.prototype.moveToPreviousPlaceholder_ = function () {
+  this.leap(-1);
+};
+/**
+ * @method EditableMathlist#moveToNextChar_
+ */
+
+
+EditableMathlist.prototype.moveToNextChar_ = function () {
+  this.move(+1);
+};
+/**
+ * @method EditableMathlist#moveToPreviousChar_
+ */
+
+
+EditableMathlist.prototype.moveToPreviousChar_ = function () {
+  this.move(-1);
+};
+/**
+ * @method EditableMathlist#moveUp_
+ */
+
+
+EditableMathlist.prototype.moveUp_ = function () {
+  this.up();
+};
+/**
+ * @method EditableMathlist#moveDown_
+ */
+
+
+EditableMathlist.prototype.moveDown_ = function () {
+  this.down();
+};
+/**
+ * @method EditableMathlist#moveToNextWord_
+ */
+
+
+EditableMathlist.prototype.moveToNextWord_ = function () {
+  this.skip(+1);
+};
+/**
+ * @method EditableMathlist#moveToPreviousWord_
+ */
+
+
+EditableMathlist.prototype.moveToPreviousWord_ = function () {
+  this.skip(-1);
+};
+/**
+ * @method EditableMathlist#moveToGroupStart_
+ */
+
+
+EditableMathlist.prototype.moveToGroupStart_ = function () {
+  this.setSelection(0);
+};
+/**
+ * @method EditableMathlist#moveToGroupEnd_
+ */
+
+
+EditableMathlist.prototype.moveToGroupEnd_ = function () {
+  this.setSelection(-1);
+};
+/**
+ * @method EditableMathlist#moveToMathFieldStart_
+ */
+
+
+EditableMathlist.prototype.moveToMathFieldStart_ = function () {
+  this.jumpToMathFieldBoundary(-1);
+};
+/**
+ * @method EditableMathlist#moveToMathFieldEnd_
+ */
+
+
+EditableMathlist.prototype.moveToMathFieldEnd_ = function () {
+  this.jumpToMathFieldBoundary(+1);
+};
+/**
+ * @method EditableMathlist#deleteNextChar_
+ */
+
+
+EditableMathlist.prototype.deleteNextChar_ = function () {
+  this.delete_(+1);
+};
+/**
+ * @method EditableMathlist#deletePreviousChar_
+ */
+
+
+EditableMathlist.prototype.deletePreviousChar_ = function () {
+  this.delete_(-1);
+};
+/**
+ * @method EditableMathlist#deleteNextWord_
+ */
+
+
+EditableMathlist.prototype.deleteNextWord_ = function () {
+  this.extendToNextBoundary();
+  this.delete_();
+};
+/**
+ * @method EditableMathlist#deletePreviousWord_
+ */
+
+
+EditableMathlist.prototype.deletePreviousWord_ = function () {
+  this.extendToPreviousBoundary();
+  this.delete_();
+};
+/**
+ * @method EditableMathlist#deleteToGroupStart_
+ */
+
+
+EditableMathlist.prototype.deleteToGroupStart_ = function () {
+  this.extendToGroupStart();
+  this.delete_();
+};
+/**
+ * @method EditableMathlist#deleteToGroupEnd_
+ */
+
+
+EditableMathlist.prototype.deleteToGroupEnd_ = function () {
+  this.extendToMathFieldStart();
+  this.delete_();
+};
+/**
+ * @method EditableMathlist#deleteToMathFieldEnd_
+ */
+
+
+EditableMathlist.prototype.deleteToMathFieldEnd_ = function () {
+  this.extendToMathFieldEnd();
+  this.delete_();
+};
+/**
+ * Swap the characters to either side of the insertion point and advances
+ * the insertion point past both of them. Does nothing to a selected range of
+ * text.
+ * @method EditableMathlist#transpose_
+ */
+
+
+EditableMathlist.prototype.transpose_ = function () {} // @todo
+
+/**
+ * @method EditableMathlist#extendToNextChar_
+ */
+;
+
+EditableMathlist.prototype.extendToNextChar_ = function () {
+  this.extend(+1);
+};
+/**
+ * @method EditableMathlist#extendToPreviousChar_
+ */
+
+
+EditableMathlist.prototype.extendToPreviousChar_ = function () {
+  this.extend(-1);
+};
+/**
+ * @method EditableMathlist#extendToNextWord_
+ */
+
+
+EditableMathlist.prototype.extendToNextWord_ = function () {
+  this.skip(+1, {
+    extend: true
+  });
+};
+/**
+ * @method EditableMathlist#extendToPreviousWord_
+ */
+
+
+EditableMathlist.prototype.extendToPreviousWord_ = function () {
+  this.skip(-1, {
+    extend: true
+  });
+};
+/**
+ * If the selection is in a denominator, the selection will be extended to
+ * include the numerator.
+ * @method EditableMathlist#extendUp_
+ */
+
+
+EditableMathlist.prototype.extendUp_ = function () {
+  this.up({
+    extend: true
+  });
+};
+/**
+ * If the selection is in a numerator, the selection will be extended to
+ * include the denominator.
+ * @method EditableMathlist#extendDown_
+ */
+
+
+EditableMathlist.prototype.extendDown_ = function () {
+  this.down({
+    extend: true
+  });
+};
+/**
+ * Extend the selection until the next boundary is reached. A boundary
+ * is defined by an atom of a different type (mbin, mord, etc...)
+ * than the current focus. For example, in "1234+x=y", if the focus is between
+ * "1" and "2", invoking `extendToNextBoundary_` would extend the selection
+ * to "234".
+ * @method EditableMathlist#extendToNextBoundary_
+ */
+
+
+EditableMathlist.prototype.extendToNextBoundary_ = function () {
+  this.skip(+1, {
+    extend: true
+  });
+};
+/**
+ * Extend the selection until the previous boundary is reached. A boundary
+ * is defined by an atom of a different type (mbin, mord, etc...)
+ * than the current focus. For example, in "1+23456", if the focus is between
+ * "5" and "6", invoking `extendToPreviousBoundary` would extend the selection
+ * to "2345".
+ * @method EditableMathlist#extendToPreviousBoundary_
+ */
+
+
+EditableMathlist.prototype.extendToPreviousBoundary_ = function () {
+  this.skip(-1, {
+    extend: true
+  });
+};
+/**
+ * @method EditableMathlist#extendToGroupStart_
+ */
+
+
+EditableMathlist.prototype.extendToGroupStart_ = function () {
+  this.setExtent(-this.anchorOffset());
+};
+/**
+ * @method EditableMathlist#extendToGroupEnd_
+ */
+
+
+EditableMathlist.prototype.extendToGroupEnd_ = function () {
+  this.setExtent(this.siblings().length - this.anchorOffset());
+};
+/**
+ * @method EditableMathlist#extendToMathFieldStart_
+ */
+
+
+EditableMathlist.prototype.extendToMathFieldStart_ = function () {
+  this.jumpToMathFieldBoundary(-1, {
+    extend: true
+  });
+};
+/**
+ * Extend the selection to the end of the math field.
+ * @method EditableMathlist#extendToMathFieldEnd_
+ */
+
+
+EditableMathlist.prototype.extendToMathFieldEnd_ = function () {
+  this.jumpToMathFieldBoundary(+1, {
+    extend: true
+  });
+};
+/**
+ * Switch the cursor to the superscript and select it. If there is no subscript
+ * yet, create one.
+ * @method EditableMathlist#moveToSuperscript_
+ */
+
+
+EditableMathlist.prototype.moveToSuperscript_ = function () {
+  this.collapseForward();
+
+  if (!this.anchor().superscript) {
+    if (this.anchor().subscript) {
+      this.anchor().superscript = [makeFirstAtom()];
+    } else {
+      var sibling = this.sibling(1);
+
+      if (sibling && sibling.superscript) {
+        this.path[this.path.length - 1].offset += 1; //            this.setSelection(this.anchorOffset() + 1);
+      } else if (sibling && sibling.subscript) {
+        this.path[this.path.length - 1].offset += 1; //            this.setSelection(this.anchorOffset() + 1);
+
+        this.anchor().superscript = [makeFirstAtom()];
+      } else {
+        if (this.anchor().limits !== 'limits') {
+          this.siblings().splice(this.anchorOffset() + 1, 0, new _mathAtom.default.MathAtom(this.parent().anchorMode, 'msubsup', "\u200B", this.anchorStyle()));
+          this.path[this.path.length - 1].offset += 1; //            this.setSelection(this.anchorOffset() + 1);
+        }
+
+        this.anchor().superscript = [makeFirstAtom()];
+      }
+    }
+  }
+
+  this.path.push({
+    relation: 'superscript',
+    offset: 0
+  });
+  this.selectGroup_();
+};
+/**
+ * Switch the cursor to the subscript and select it. If there is no subscript
+ * yet, create one.
+ * @method EditableMathlist#moveToSubscript_
+ */
+
+
+EditableMathlist.prototype.moveToSubscript_ = function () {
+  this.collapseForward();
+
+  if (!this.anchor().subscript) {
+    if (this.anchor().superscript) {
+      this.anchor().subscript = [makeFirstAtom()];
+    } else {
+      var sibling = this.sibling(1);
+
+      if (sibling && sibling.subscript) {
+        this.path[this.path.length - 1].offset += 1; // this.setSelection(this.anchorOffset() + 1);
+      } else if (sibling && sibling.superscript) {
+        this.path[this.path.length - 1].offset += 1; // this.setSelection(this.anchorOffset() + 1);
+
+        this.anchor().subscript = [makeFirstAtom()];
+      } else {
+        if (this.anchor().limits !== 'limits') {
+          this.siblings().splice(this.anchorOffset() + 1, 0, new _mathAtom.default.MathAtom(this.parent().anchorMode, 'msubsup', "\u200B", this.anchorStyle()));
+          this.path[this.path.length - 1].offset += 1; // this.setSelection(this.anchorOffset() + 1);
+        }
+
+        this.anchor().subscript = [makeFirstAtom()];
+      }
+    }
+  }
+
+  this.path.push({
+    relation: 'subscript',
+    offset: 0
+  });
+  this.selectGroup_();
+};
+/**
+ * If cursor is currently in:
+ * - superscript: move to subscript, creating it if necessary
+ * - subscript: move to superscript, creating it if necessary
+ * - numerator: move to denominator
+ * - denominator: move to numerator
+ * - otherwise: move to superscript
+ * @method EditableMathlist#moveToOpposite_
+ */
+
+
+EditableMathlist.prototype.moveToOpposite_ = function () {
+  var OPPOSITE_RELATIONS = {
+    'superscript': 'subscript',
+    'subscript': 'superscript',
+    'denom': 'numer',
+    'numer': 'denom'
+  };
+  var oppositeRelation = OPPOSITE_RELATIONS[this.relation()];
+
+  if (!oppositeRelation) {
+    this.moveToSuperscript_();
+  }
+
+  if (!this.parent()[oppositeRelation]) {
+    // Don't have children of the opposite relation yet
+    // Add them
+    this.parent()[oppositeRelation] = [makeFirstAtom()];
+  }
+
+  this.setSelection(0, 'end', oppositeRelation);
+};
+/**
+ * @method EditableMathlist#moveBeforeParent_
+ */
+
+
+EditableMathlist.prototype.moveBeforeParent_ = function () {
+  if (this.path.length > 1) {
+    this.path.pop();
+    this.setSelection(this.anchorOffset() - 1);
+  } else {
+    this._announce('plonk');
+  }
+};
+/**
+ * @method EditableMathlist#moveAfterParent_
+ */
+
+
+EditableMathlist.prototype.moveAfterParent_ = function () {
+  if (this.path.length > 1) {
+    var oldPath = clone(this);
+    this.path.pop();
+    this.setExtent(0);
+
+    this._announce('move', oldPath);
+  } else {
+    this._announce('plonk');
+  }
+};
+/**
+ * Internal primitive to add a column/row in a matrix
+ * @method EditableMathlist#_addCell
+ * @private
+ */
+
+
+EditableMathlist.prototype._addCell = function (where) {
+  // This command is only applicable if we're in an array
+  var parent = this.parent();
+
+  if (parent && parent.type === 'array' && Array.isArray(parent.array)) {
+    var relation = this.relation();
+
+    if (parent.array) {
+      var colRow = arrayColRow(parent.array, relation);
+
+      if (where === 'after row' || where === 'before row') {
+        // Insert a row
+        colRow.col = 0;
+        colRow.row = colRow.row + (where === 'after row' ? 1 : 0);
+        parent.array.splice(colRow.row, 0, [[]]);
+      } else {
+        // Insert a column
+        colRow.col += where === 'after column' ? 1 : 0;
+        parent.array[colRow.row].splice(colRow.col, 0, []);
+      }
+
+      var cellIndex = arrayIndex(parent.array, colRow);
+      this.path.pop();
+      this.path.push({
+        relation: 'cell' + cellIndex.toString(),
+        offset: 0
+      });
+      this.insertFirstAtom();
+    }
+  }
+};
+
+EditableMathlist.prototype.convertParentToArray = function () {
+  var parent = this.parent();
+
+  if (parent.type === 'leftright') {
+    parent.type = 'array';
+    var envName = {
+      '(': 'pmatrix',
+      '\\lbrack': 'bmatrix',
+      '\\lbrace': 'cases'
+    }[parent.leftDelim] || 'matrix';
+
+    var env = _definitions.default.getEnvironmentInfo(envName);
+
+    var array = [[parent.body]];
+
+    if (env.parser) {
+      Object.assign(parent, env.parser(envName, [], array));
+    }
+
+    parent.tabularMode = env.tabular;
+    parent.parseMode = this.anchorMode();
+    parent.env = _objectSpread({}, env);
+    parent.env.name = envName;
+    parent.array = array;
+    parent.rowGaps = [0];
+    delete parent.body;
+    this.path[this.path.length - 1].relation = 'cell0';
+  } // Note: could also be a group, or we could be a subscript or an
+  // underscript (for multi-valued conditions on a \sum, for example)
+  // Or if at root, this could be a 'align*' environment
+
+};
+/**
+ * @method EditableMathlist#addRowAfter_
+ */
+
+
+EditableMathlist.prototype.addRowAfter_ = function () {
+  this.contentWillChange();
+  this.convertParentToArray();
+
+  this._addCell('after row');
+
+  this.contentDidChange();
+};
+/**
+ * @method EditableMathlist#addRowBefore_
+ */
+
+
+EditableMathlist.prototype.addRowBefore_ = function () {
+  this.contentWillChange();
+  this.convertParentToArray();
+
+  this._addCell('before row');
+
+  this.contentDidChange();
+};
+/**
+ * @method EditableMathlist#addColumnAfter_
+ */
+
+
+EditableMathlist.prototype.addColumnAfter_ = function () {
+  this.contentWillChange();
+  this.convertParentToArray();
+
+  this._addCell('after column');
+
+  this.contentDidChange();
+};
+/**
+ * @method EditableMathlist#addColumnBefore_
+ */
+
+
+EditableMathlist.prototype.addColumnBefore_ = function () {
+  this.contentWillChange();
+  this.convertParentToArray();
+
+  this._addCell('before column');
+
+  this.contentDidChange();
+};
+/**
+ * Apply a style (color, background) to the selection.
+ * 
+ * If the style is already applied to the selection, remove it. If the selection
+ * has the style partially applied (i.e. only some sections), remove it from 
+ * those sections, and apply it to the entire selection.
+ * 
+ * @method EditableMathlist#applyStyle
+ */
+
+
+EditableMathlist.prototype._applyStyle = function (style) {
+  // No selection, nothing to do.
+  if (this.isCollapsed()) return;
+  var that = this;
+
+  function everyStyle(property, value) {
+    var result = true;
+    that.forEachSelected(function (x) {
+      result = result && x[property] === value;
+    }, {
+      recursive: true
+    });
+    return result;
+  }
+
+  if (style.color && everyStyle('color', style.color)) {
+    // If the selection already has this color, turn it off
+    style.color = 'none';
+  }
+
+  if (style.backgroundColor && everyStyle('backgroundColor', style.backgroundColor)) {
+    // If the selection already has this color, turn it off
+    style.backgroundColor = 'none';
+  }
+
+  if (style.fontFamily && everyStyle('fontFamily', style.fontFamily)) {
+    // If the selection already has this font family, turn it off
+    style.fontFamily = 'none';
+  }
+
+  if (style.series) style.fontSeries = style.series;
+
+  if (style.fontSeries && everyStyle('fontSeries', style.fontSeries)) {
+    // If the selection already has this series (weight), turn it off
+    style.fontSeries = 'auto';
+  }
+
+  if (style.shape) style.fontShape = style.shape;
+
+  if (style.fontShape && everyStyle('fontShape', style.fontShape)) {
+    // If the selection already has this shape (italic), turn it off
+    style.fontShape = 'auto';
+  }
+
+  if (style.size) style.fontSize = style.size;
+
+  if (style.fontSize && everyStyle('fontSize', style.fontSize)) {
+    // If the selection already has this size, reset it to default size
+    style.fontSize = 'size5';
+  }
+
+  this.contentWillChange();
+  this.forEachSelected(function (x) {
+    return x.applyStyle(style);
+  }, {
+    recursive: true
+  });
+  this.contentDidChange();
+};
+/**
+ * Attempts to parse and interpret a string in an unknown format, possibly
+ * ASCIIMath and return a canonical LaTeX string.
+ * 
+ * The format recognized are one of these variations:
+ * - ASCIIMath: Only supports a subset 
+ * (1/2x)
+ * 1/2sin x                     -> \frac {1}{2}\sin x
+ * 1/2sinx                      -> \frac {1}{2}\sin x
+ * (1/2sin x (x^(2+1))          // Unbalanced parentheses
+ * (1/2sin(x^(2+1))             -> \left(\frac {1}{2}\sin \left(x^{2+1}\right)\right)
+ * alpha + (pi)/(4)             -> \alpha +\frac {\pi }{4}
+ * x=(-b +- sqrt(b^2 – 4ac))/(2a)
+ * alpha/beta
+ * sqrt2 + sqrtx + sqrt(1+a) + sqrt(1/2)
+ * f(x) = x^2 "when" x >= 0
+ * AA n in QQ
+ * AA x in RR "," |x| > 0
+ * AA x in RR "," abs(x) > 0
+ * 
+ * - UnicodeMath (generated by Microsoft Word): also only supports a subset
+ *      - See https://www.unicode.org/notes/tn28/UTN28-PlainTextMath-v3.1.pdf
+ * √(3&x+1)
+ * {a+b/c}
+ * [a+b/c]
+ * _a^b x 
+ * lim_(n->\infty) n
+ * \iint_(a=0)^\infty  a
+ *
+ * - "JavaScript Latex": a variant that is LaTeX, but with escaped backslashes
+ *  \\frac{1}{2} \\sin x
+ * @param {string} s 
+ */
+
+
+function parseMathString(s, config) {
+  if (!s) return ''; // Nothing to do if a single character
+
+  if (s.length <= 1) return s; // Replace double-backslash (coming from JavaScript) to a single one
+
+  if (!config || config.format !== 'ASCIIMath') {
+    s = s.replace(/\\\\([^\s\n])/g, '\\$1');
+  }
+
+  if ((!config || config.format !== 'ASCIIMath') && /\\/.test(s)) {
+    // If the string includes a '\' and a '{' or a '}'
+    // it's probably a LaTeX string
+    // (that's not completely true, it could be a UnicodeMath string, since
+    // UnicodeMath supports some LaTeX commands. However, we need to pick
+    // one in order to correctly interpret {} (which are argument delimiters
+    // in LaTeX, and are fences in UnicodeMath)
+    return s;
+  }
+
+  s = s.replace(/\u2061/g, ''); // Remove function application
+
+  s = s.replace(/\u3016/g, '{'); // WHITE LENTICULAR BRACKET (grouping)
+
+  s = s.replace(/\u3017/g, '}'); // WHITE LENTICULAR BRACKET (grouping)
+
+  s = s.replace(/([^\\])sinx/g, '$1\\sin x'); // common typo
+
+  s = s.replace(/([^\\])cosx/g, '$1\\cos x '); // common typo
+
+  s = s.replace(/\u2013/g, '-'); // EN-DASH, sometimes used as a minus sign
+
+  return parseMathExpression(s, config);
+}
+
+function parseMathExpression(s, config) {
+  if (!s) return '';
+  var done = false;
+  var m;
+
+  if (!done && (s[0] === '^' || s[0] === '_')) {
+    // Superscript and subscript
+    m = parseMathArgument(s.substr(1), _objectSpread({}, config, {
+      noWrap: true
+    }));
+    s = s[0] + '{' + m.match + '}';
+    s += parseMathExpression(m.rest, config);
+    done = true;
+  }
+
+  if (!done) {
+    m = s.match(/^(sqrt|\u221a)(.*)/);
+
+    if (m) {
+      // Square root
+      m = parseMathArgument(m[2], _objectSpread({}, config, {
+        noWrap: true
+      }));
+      s = '\\sqrt{' + m.match + '}';
+      s += parseMathExpression(m.rest, config);
+      done = true;
+    }
+  }
+
+  if (!done) {
+    m = s.match(/^(\\cbrt|\u221b)(.*)/);
+
+    if (m) {
+      // Cube root
+      m = parseMathArgument(m[2], _objectSpread({}, config, {
+        noWrap: true
+      }));
+      s = '\\sqrt[3]{' + m.match + '}';
+      s += parseMathExpression(m.rest, config);
+      done = true;
+    }
+  }
+
+  if (!done) {
+    m = s.match(/^abs(.*)/);
+
+    if (m) {
+      // Absolute value
+      m = parseMathArgument(m[1], _objectSpread({}, config, {
+        noWrap: true
+      }));
+      s = '\\left|' + m.match + '\\right|';
+      s += parseMathExpression(m.rest, config);
+      done = true;
+    }
+  }
+
+  if (!done) {
+    m = s.match(/^["”“](.*?)["”“](.*)/);
+
+    if (m) {
+      // Quoted text
+      s = "\\text{" + m[1] + '}';
+      s += parseMathExpression(m[2], config);
+      done = true;
+    }
+  }
+
+  if (!done) {
+    m = s.match(/^([^a-zA-Z({[_^\\\s"]+)(.*)/); // A string of symbols...
+    // Could be a binary or relational operator, etc...
+
+    if (m) {
+      s = paddedShortcut(m[1], config);
+      s += parseMathExpression(m[2], config);
+      done = true;
+    }
+  }
+
+  if (!done && /^(f|g|h)[^a-zA-Z]/.test(s)) {
+    // This could be a function...
+    m = parseMathArgument(s.substring(1), config);
+    s = s[0];
+    s += m.match;
+    s += parseMathExpression(m.rest, config);
+    done = true;
+  }
+
+  if (!done) {
+    m = s.match(/^([a-zA-Z]+)(.*)/);
+
+    if (m) {
+      // Some alphabetical string...
+      // Could be a function name (sin) or symbol name (alpha)
+      s = paddedShortcut(m[1], config);
+      s += parseMathExpression(m[2], config);
+      done = true;
+    }
+  }
+
+  if (!done) {
+    m = parseMathArgument(s, _objectSpread({}, config, {
+      noWrap: true
+    }));
+
+    if (m.match && m.rest[0] === '/') {
+      // Fraction
+      var m2 = parseMathArgument(m.rest.substr(1), _objectSpread({}, config, {
+        noWrap: true
+      }));
+
+      if (m2.match) {
+        s = '\\frac{' + m.match + '}{' + m2.match + '}' + parseMathExpression(m2.rest, config);
+      }
+
+      done = true;
+    } else if (m.match && /^(\(|\{|\[)$/.test(s[0])) {
+      // A group
+      s = '\\left' + s[0] + m.match + '\\right' + {
+        '(': ')',
+        '{': '}',
+        '[': ']'
+      }[s[0]] + parseMathExpression(m.rest, config);
+      done = true;
+    } else if (m.match) {
+      s = m.match;
+      s += parseMathExpression(m.rest, config);
+      done = true;
+    }
+  }
+
+  if (!done) {
+    m = s.match(/^(\s+)(.*)$/); // Whitespace
+
+    if (m) {
+      s = ' ' + parseMathExpression(m[2], config);
+      done = true;
+    }
+  }
+
+  return s;
+}
+/**
+ * Parse a math argument, as defined by ASCIIMath and UnicodeMath:
+ * - Either an expression fenced in (), {} or []
+ * - a number (- sign, digits, decimal point, digits)
+ * - a single [a-zA-Z] letter (an identifier)
+ * - a multi-letter shortcut (e.g., pi)
+ * - a LaTeX command (\pi) (for UnicodeMath)
+ * @param {string} s 
+ * @return {object}
+ * - match: the parsed (and converted) portion of the string that is an argument
+ * - rest: the raw, unconverted, rest of the string
+ */
+
+
+function parseMathArgument(s, config) {
+  var match = '';
+  s = s.trim();
+  var rest = s;
+  var lFence = s.charAt(0);
+  var rFence = {
+    '(': ')',
+    '{': '}',
+    '[': ']'
+  }[lFence];
+
+  if (rFence) {
+    // It's a fence
+    var level = 1;
+    var i = 1;
+
+    while (i < s.length && level > 0) {
+      if (s[i] === lFence) level++;
+      if (s[i] === rFence) level--;
+      i++;
+    }
+
+    if (level === 0) {
+      // We've found the matching closing fence
+      if (config.noWrap && lFence === '(' && rFence === ')') {
+        match = parseMathExpression(s.substring(1, i - 1), config);
+      } else {
+        match = '\\mleft' + lFence + parseMathExpression(s.substring(1, i - 1), config) + '\\mright' + rFence;
+      }
+
+      rest = s.substring(i);
+    } else {
+      // Unbalanced fence...
+      match = s.substring(1, i);
+      rest = '';
+    }
+  } else {
+    var m = s.match(/^([a-zA-Z]+)/);
+
+    if (m) {
+      // It's a string of letter, maybe a shortcut
+      var shortcut = _editorShortcuts.default.forString('math', null, s, config);
+
+      if (shortcut) {
+        shortcut = shortcut.replace('_{#?}', '');
+        shortcut = shortcut.replace('^{#?}', '');
+        return {
+          match: shortcut,
+          rest: s.substring(shortcut.length)
+        };
+      }
+    }
+
+    m = s.match(/^([a-zA-Z])/);
+
+    if (m) {
+      // It's a single letter
+      return {
+        match: m[1],
+        rest: s.substring(1)
+      };
+    }
+
+    m = s.match(/^(-)?\d+(\.\d*)?/);
+
+    if (m) {
+      // It's a number
+      return {
+        match: m[0],
+        rest: s.substring(m[0].length)
+      };
+    }
+
+    if (!/^\\(left|right)/.test(s)) {
+      // It's a LaTeX command (but not a \left\right)
+      m = s.match(/^(\\[a-zA-Z]+)/);
+
+      if (m) {
+        rest = s.substring(m[1].length);
+        match = m[1];
+      }
+    }
+  }
+
+  return {
+    match: match,
+    rest: rest
+  };
+}
+
+function paddedShortcut(s, config) {
+  var result = _editorShortcuts.default.forString('math', null, s, config);
+
+  if (result) {
+    result = result.replace('_{#?}', '');
+    result = result.replace('^{#?}', '');
+    result += ' ';
+  } else {
+    result = s;
+  }
+
+  return result;
+}
+
+function makeFirstAtom() {
+  return new _mathAtom.default.MathAtom('', 'first');
+}
+
+var _default = {
+  EditableMathlist: EditableMathlist,
+  parseMathString: parseMathString
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-keyboard.js b/dist/editor/editor-keyboard.js
new file mode 100644
index 000000000..f941ce59c
--- /dev/null
+++ b/dist/editor/editor-keyboard.js
@@ -0,0 +1,372 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+/**
+ * This modules handles low-level keyboard events and normalize them across
+ * browsers.
+ * @module editor/keyboard
+ * @private
+ */
+// These keys on international (non-US QWERTY) keyboards should 
+// be mapped to the coresponding virtual keys (they could be shifted keys on
+// international keyboards)
+var INTL_KEY = {
+  '#': '#',
+  '|': '|',
+  '[': 'BracketLeft',
+  ']': 'BracketRight',
+  '-': 'Minus',
+  '+': 'Plus',
+  '=': 'Equal',
+  '/': 'Slash',
+  '\\': 'Backslash'
+};
+var KEY_NAMES = {
+  'Space': 'Spacebar',
+  ' ': 'Spacebar',
+  'Escape': 'Esc',
+  'ArrowLeft': 'Left',
+  'ArrowUp': 'Up',
+  'ArrowRight': 'Right',
+  'ArrowDown': 'Down',
+  'Delete': 'Del'
+};
+var VIRTUAL_KEY_NAMES = {
+  'q': 'KeyQ',
+  'w': 'KeyW',
+  'e': 'KeyE',
+  'r': 'KeyR',
+  't': 'KeyT',
+  'y': 'KeyY',
+  'u': 'KeyU',
+  'i': 'KeyI',
+  'o': 'KeyO',
+  'p': 'KeyP',
+  'a': 'KeyA',
+  's': 'KeyS',
+  'd': 'KeyD',
+  'f': 'KeyF',
+  'g': 'KeyG',
+  'h': 'KeyH',
+  'j': 'KeyJ',
+  'k': 'KeyK',
+  'l': 'KeyL',
+  'z': 'KeyZ',
+  'x': 'KeyX',
+  'c': 'KeyC',
+  'v': 'KeyV',
+  'b': 'KeyB',
+  'n': 'KeyN',
+  'm': 'KeyM',
+  '1': 'Digit1',
+  '2': 'Digit2',
+  '3': 'Digit3',
+  '4': 'Digit4',
+  '5': 'Digit5',
+  '6': 'Digit6',
+  '7': 'Digit7',
+  '8': 'Digit8',
+  '9': 'Digit9',
+  '0': 'Digit0',
+  '!': 'Shift-Digit1',
+  '@': 'Shift-Digit2',
+  '#': 'Shift-Digit3',
+  '$': 'Shift-Digit4',
+  '%': 'Shift-Digit5',
+  '^': 'Shift-Digit6',
+  '&': 'Shift-Digit7',
+  '*': 'Shift-Digit8',
+  '(': 'Shift-Digit9',
+  ')': 'Shift-Digit0',
+  '-': 'Minus',
+  '_': 'Shift-Minus',
+  '/': 'Slash',
+  '\\': 'Backslash',
+  // Some virtual keyboards (iOS) return '\' as the event.key
+  // with no evt.code
+  '|': 'Shift-Backslash',
+  '?': 'Shift-Slash',
+  ' ': 'Spacebar'
+};
+/**
+ * 
+ * Create a normalized string representation of the key combo,
+ * i.e., key code and modifier keys. For example:
+ * - `Ctrl-Shift-Alt-KeyF`
+ * - `Alt-Space`
+ * - `Shift-Digit6`
+ * @todo See https://github.com/madrobby/keymaster/blob/master/keymaster.js
+ * - Doesn't work very well for command-<key>
+ * - Returns "Alt-Alt" when only the Alt key is pressed
+ * @memberof module:editor/keyboard
+ * @param {Event} evt 
+ */
+
+function keyboardEventToString(evt) {
+  var keyname;
+  var useModifiers = true;
+
+  if (evt.key === 'Unidentified') {
+    // On Android, the evt.key seems to always be Unidentified. 
+    // Get the value entered in the event target
+    if (evt.target) {
+      keyname = VIRTUAL_KEY_NAMES[evt.target.value] || evt.target.value;
+    }
+  }
+
+  if (!keyname && evt.code) {
+    keyname = KEY_NAMES[evt.code] || evt.code;
+  }
+
+  if (!keyname) {
+    if (INTL_KEY[evt.key]) {
+      keyname = INTL_KEY[evt.key];
+      useModifiers = false;
+    } else {
+      keyname = KEY_NAMES[evt.key];
+    } // For virtual keyboards (iOS, Android) and Microsoft Edge (!)
+    // the `evt.code`, which represents the physical key pressed, is set 
+    // to undefined. In that case, map the virtual key ("q") to a
+    // pseudo-hardware key ("KeyQ")
+
+
+    if (!keyname) {
+      keyname = VIRTUAL_KEY_NAMES[evt.key.toLowerCase()] || evt.key;
+    }
+  }
+
+  var modifiers = [];
+  if (evt.ctrlKey) modifiers.push('Ctrl');
+  if (evt.metaKey) modifiers.push('Meta');
+  if (useModifiers && evt.altKey) modifiers.push('Alt');
+  if (useModifiers && evt.shiftKey) modifiers.push('Shift'); // If no modifiers, simply return the key name
+
+  if (modifiers.length === 0) return keyname;
+  modifiers.push(keyname);
+  return modifiers.join('-');
+}
+/**
+ * Setup to capture the keyboard events from a `TextArea` and redispatch them to 
+ * handlers.
+ * 
+ * In general, commands (arrows, delete, etc..) should be handled 
+ * in the `keystroke()` handler while text input should be handled in 
+ * `typedtext()`.
+ * 
+ * @param {Element} textarea A `TextArea` element that will capture the keyboard
+ * events. While this element will usually be a `TextArea`, it could be any
+ * element that is focusable and can receive keyboard events.
+ * @param {Object.<string, any>} handlers
+ * @param {Element} [handlers.container]
+ * @param {function} handlers.keystroke invoked on a key down event, including 
+ * for special keys such as ESC, arrow keys, tab, etc... and their variants 
+ * with modifiers.
+ * @param {function} handlers.typedtext invoked on a keypress or other events 
+ * when a key corresponding to a character has been pressed. This include `a-z`, 
+ * `0-9`, `{}`, `^_()`, etc...
+ * This does not include arrow keys, tab, etc... but does include 'space'
+ * When a 'character' key is pressed, both `keystroke()` and `typedtext()` will
+ * be invoked. When a control/function key is pressed, only `keystroke()` will 
+ * be invoked. In some cases, for example when using input methods or entering
+ * emoji, only `typedtext()` will be invoked. 
+ * @param {function} handlers.paste(text) Invoked in response to a paste 
+ * command. Not all browsers support this (Chrome doesn't), so typedtext() 
+ * will be invoked instead.
+ * @param {function} handlers.cut
+ * @param {function} handlers.copy
+ * @memberof module:editor/keyboard
+ * @private
+ */
+
+
+function delegateKeyboardEvents(textarea, handlers) {
+  var keydownEvent = null;
+  var keypressEvent = null;
+  var compositionInProgress = false;
+  var deadKey = false; // This callback is invoked after a keyboard event has been processed
+  // by the textarea
+
+  var callbackTimeoutID;
+
+  function defer(cb) {
+    clearTimeout(callbackTimeoutID);
+    callbackTimeoutID = setTimeout(function () {
+      clearTimeout(callbackTimeoutID);
+      cb();
+    });
+  }
+
+  function handleTypedText() {
+    // Some browsers (Firefox, Opera) fire a keypress event for commands
+    // such as command-C where there might be a non-empty selection.
+    // We need to ignore these.
+    if (hasSelection(textarea)) return;
+    var text = textarea.value;
+    textarea.value = '';
+    if (text.length > 0) handlers.typedText(text);
+  }
+
+  function onKeydown(e) {
+    var allowDeadKey = typeof handlers.allowDeadKey === 'function' && handlers.allowDeadKey();
+
+    if (!allowDeadKey && (e.key === 'Dead' || e.key === 'Unidentified' || e.keyCode === 229)) {
+      deadKey = true;
+      compositionInProgress = false; // This sequence seems to cancel dead keys
+      // but don't call our blur/focus handlers
+
+      var savedBlur = handlers.blur;
+      var savedFocus = handlers.focus;
+      handlers.blur = null;
+      handlers.focus = null;
+      textarea.blur();
+      textarea.focus();
+      handlers.blur = savedBlur;
+      handlers.focus = savedFocus;
+    } else {
+      deadKey = false;
+    }
+
+    if (!compositionInProgress && e.code !== 'CapsLock' && !/(Control|Meta|Alt|Shift)(Right|Left)/.test(e.code)) {
+      keydownEvent = e;
+      keypressEvent = null;
+      return handlers.keystroke(keyboardEventToString(e), e);
+    }
+
+    return true;
+  }
+
+  function onKeypress(e) {
+    // If this is not the first keypress after a keydown, that is,
+    // if this is a repeated keystroke, call the keystroke handler.
+    if (!compositionInProgress) {
+      if (keydownEvent && keypressEvent) {
+        handlers.keystroke(keyboardEventToString(keydownEvent), keydownEvent);
+      }
+
+      keypressEvent = e;
+      defer(handleTypedText);
+    }
+  }
+
+  function onKeyup() {
+    // If we've received a keydown, but no keypress, check what's in the
+    // textarea field.
+    if (!compositionInProgress && keydownEvent && !keypressEvent) {
+      handleTypedText();
+    }
+  }
+
+  function onPaste() {
+    // In some cases (Linux browsers), the text area might not be focused
+    // when doing a middle-click paste command.
+    textarea.focus();
+    var text = textarea.value;
+    textarea.value = '';
+    if (text.length > 0) handlers.paste(text);
+  }
+
+  function onCopy(e) {
+    if (handlers.copy) handlers.copy(e);
+  }
+
+  function onCut(e) {
+    if (handlers.cut) handlers.cut(e);
+  }
+
+  function onBlur() {
+    keydownEvent = null;
+    keypressEvent = null;
+    if (handlers.blur) handlers.blur();
+  }
+
+  function onFocus() {
+    if (handlers.focus) {
+      handlers.focus();
+    }
+  }
+
+  var target = textarea || handlers.container;
+  target.addEventListener('keydown', onKeydown, true);
+  target.addEventListener('keypress', onKeypress, true);
+  target.addEventListener('keyup', onKeyup, true);
+  target.addEventListener('paste', onPaste, true);
+  target.addEventListener('copy', onCopy, true);
+  target.addEventListener('cut', onCut, true);
+  target.addEventListener('blur', onBlur, true);
+  target.addEventListener('focus', onFocus, true);
+  target.addEventListener('compositionstart', function () {
+    compositionInProgress = true;
+  }, true);
+  target.addEventListener('compositionend', function () {
+    compositionInProgress = false;
+    defer(handleTypedText);
+  }, true); // The `input` handler gets called when the field is changed, for example 
+  // with input methods or emoji input...
+
+  target.addEventListener('input', function () {
+    if (deadKey) {
+      var savedBlur = handlers.blur;
+      var savedFocus = handlers.focus;
+      handlers.blur = null;
+      handlers.focus = null;
+      textarea.blur();
+      textarea.focus();
+      handlers.blur = savedBlur;
+      handlers.focus = savedFocus;
+      deadKey = false;
+      compositionInProgress = false;
+      defer(handleTypedText);
+    } else if (!compositionInProgress) {
+      defer(handleTypedText);
+    }
+  });
+}
+
+function hasSelection(textarea) {
+  return textarea.selectionStart !== textarea.selectionEnd;
+}
+
+function eventToChar(evt) {
+  if (!evt) return '';
+  var result;
+
+  if (evt.key === 'Unidentified') {
+    // On Android, the evt.key seems to always be 'Unidentified'.
+    // Get the value entered in the event target
+    if (evt.target) {
+      result = evt.target.value;
+    }
+  }
+
+  result = result || evt.key || evt.code;
+
+  if (/^(Return|Enter|Tab|Escape|Delete|PageUp|PageDown|Home|End|Help|ArrowLeft|ArrowRight|ArrowUp|ArrowDown)$/.test(result)) {
+    result = '';
+  }
+
+  return result;
+}
+
+function charToEvent(c) {
+  var result = {
+    key: c,
+    metaKey: false,
+    ctrlKey: false,
+    altKey: false,
+    shiftKey: false
+  };
+  return result;
+}
+
+var _default = {
+  delegateKeyboardEvents: delegateKeyboardEvents,
+  select: delegateKeyboardEvents.select,
+  keyboardEventToString: keyboardEventToString,
+  eventToChar: eventToChar,
+  charToEvent: charToEvent
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-mathfield.js b/dist/editor/editor-mathfield.js
new file mode 100644
index 000000000..77b50da96
--- /dev/null
+++ b/dist/editor/editor-mathfield.js
@@ -0,0 +1,3980 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _definitions = _interopRequireDefault(require("../core/definitions.js"));
+
+var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
+
+var _lexer = _interopRequireDefault(require("../core/lexer.js"));
+
+var _parser = _interopRequireDefault(require("../core/parser.js"));
+
+var _span = _interopRequireDefault(require("../core/span.js"));
+
+var _editorEditableMathlist = _interopRequireDefault(require("./editor-editableMathlist.js"));
+
+var _editorMathpath = _interopRequireDefault(require("./editor-mathpath.js"));
+
+var _editorKeyboard = _interopRequireDefault(require("./editor-keyboard.js"));
+
+var _editorUndo = _interopRequireDefault(require("./editor-undo.js"));
+
+var _editorShortcuts = _interopRequireDefault(require("./editor-shortcuts.js"));
+
+var _editorPopover = _interopRequireDefault(require("./editor-popover.js"));
+
+var _editorVirtualKeyboard = _interopRequireDefault(require("./editor-virtualKeyboard.js"));
+
+var _graphemeSplitter = _interopRequireDefault(require("../core/grapheme-splitter.js"));
+
+var _outputASCIIMath = require("./outputASCIIMath.js");
+
+var _l10n = require("./l10n.js");
+
+require("../addons/outputLatex.js");
+
+require("../addons/outputMathML.js");
+
+require("../addons/maston.js");
+
+require("../addons/outputSpokenText.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
+
+function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
+
+function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
+
+function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
+
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+/*
+    Note:
+    The OutputLatex, OutputMathML, MASTON and OutputSpokenText  modules are required,
+    even though they are not referenced directly.
+
+    They modify the MathAtom class, adding toLatex(), toAST(), toMathML() and
+    toSpeakableText() respectively.
+*/
+var HAPTIC_FEEDBACK_DURATION = 3; // in ms
+
+var AUDIO_FEEDBACK_VOLUME = 0.5; // from 0.0 to 1.0
+
+function on(el, selectors, listener, options) {
+  selectors = selectors.split(' ');
+  var _iteratorNormalCompletion = true;
+  var _didIteratorError = false;
+  var _iteratorError = undefined;
+
+  try {
+    for (var _iterator = selectors[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      var sel = _step.value;
+      var m = sel.match(/(.*):(.*)/);
+
+      if (m) {
+        var options2 = options || {};
+
+        if (m[2] === 'active') {
+          options2.passive = false;
+        } else {
+          options2[m[2]] = true;
+        }
+
+        el.addEventListener(m[1], listener, options2);
+      } else {
+        el.addEventListener(sel, listener, options);
+      }
+    }
+  } catch (err) {
+    _didIteratorError = true;
+    _iteratorError = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion && _iterator.return != null) {
+        _iterator.return();
+      }
+    } finally {
+      if (_didIteratorError) {
+        throw _iteratorError;
+      }
+    }
+  }
+}
+
+function off(el, selectors, listener, options) {
+  selectors = selectors.split(' ');
+  var _iteratorNormalCompletion2 = true;
+  var _didIteratorError2 = false;
+  var _iteratorError2 = undefined;
+
+  try {
+    for (var _iterator2 = selectors[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+      var sel = _step2.value;
+      var m = sel.match(/(.*):(.*)/);
+
+      if (m) {
+        var options2 = options || {};
+
+        if (m[2] === 'active') {
+          options2.passive = false;
+        } else {
+          options2[m[2]] = true;
+        }
+
+        el.removeEventListener(m[1], listener, options2);
+      } else {
+        el.removeEventListener(sel, listener, options);
+      }
+    }
+  } catch (err) {
+    _didIteratorError2 = true;
+    _iteratorError2 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+        _iterator2.return();
+      }
+    } finally {
+      if (_didIteratorError2) {
+        throw _iteratorError2;
+      }
+    }
+  }
+}
+
+function getSharedElement(id, cls) {
+  var result = document.getElementById(id);
+
+  if (result) {
+    result.setAttribute('data-refcount', parseInt(result.getAttribute('data-refcount')) + 1);
+  } else {
+    result = document.createElement('div');
+    result.setAttribute('aria-hidden', 'true');
+    result.setAttribute('data-refcount', '1');
+    result.className = cls;
+    result.id = id;
+    document.body.appendChild(result);
+  }
+
+  return result;
+}
+
+function releaseSharedElement(el) {
+  if (!el) return null;
+  var refcount = parseInt(el.getAttribute('data-refcount'));
+
+  if (!refcount || refcount === 1) {
+    el.remove();
+  } else {
+    el.setAttribute('data-refcount', refcount - 1);
+  }
+
+  return el;
+}
+/**
+ * To create a mathfield, you would typically use {@linkcode module:MathLive#makeMathField MathLive.makeMathField()}
+ * instead of invoking directly this constructor.
+ * 
+ * **Note**
+ * - Method names that begin with `$` are public.
+ * - Method names that _begin with_ an underbar `_` are private and meant
+ * to be used only by the implementation of the class.
+ * - Method names that _end with_ an underbar `_` are selectors. They can
+ * be invoked by calling [`MathField.$perform()`]{@link MathField#$perform}. Note
+ * that the selector name does not include the underbar.
+ *
+ * For example:
+ * ```
+ *    mf.$perform('selectAll');
+ * ```
+ * 
+ * @param {Element} element - The DOM element that this mathfield is attached to.
+ * Note that `element.mathfield` is this object.
+ * @param {object} config - See {@tutorial CONFIG} for details
+ * @property {Element} element - The DOM element this mathfield is attached to.
+ * @property {Object.<string, any>} config - A set of key/value pairs that can
+ * be used to customize the behavior of the mathfield
+ * @property {string} id - A unique ID identifying this mathfield
+ * @property {boolean} keystrokeCaptionVisible - True if the keystroke caption
+ * panel is visible
+ * @property {boolean} virtualKeyboardVisible - True if the virtual keyboard is 
+ * visible
+ * @property {string} keystrokeBuffer The last few keystrokes, to look out
+ * for inline shortcuts
+ * @property {object[]} keystrokeBufferStates The saved state for each of the 
+ * past keystrokes
+ * @class
+ * @global
+ */
+
+
+function MathField(element, config) {
+  var _this = this;
+
+  // Setup default config options
+  this.$setConfig(config || {});
+  this.element = element;
+  element.mathfield = this; // Save existing content
+
+  this.originalContent = element.innerHTML;
+  var elementText = this.element.textContent;
+  if (elementText) elementText = elementText.trim(); // Additional elements used for UI.
+  // They are retrieved in order a bit later, so they need to be kept in sync
+  // 1.0/ The field, where the math equation will be displayed
+  // 1.1/ The virtual keyboard toggle
+  // 2/ The popover panel which displays info in command mode
+  // 3/ The keystroke caption panel (option+shift+K)
+  // 4/ The virtual keyboard
+  // 5.0/ The area to stick MathML for screen reading larger exprs (not used right now)
+  //      The for the area is that focus would bounce their and then back triggering the
+  //         screen reader to read it
+  // 5.1/ The aria-live region for announcements
+
+  var markup = '';
+
+  if (!this.config.substituteTextArea) {
+    if (/android|ipad|ipod|iphone/i.test(navigator.userAgent)) {
+      // On Android or iOS, don't use a textarea, which has the side effect of
+      // bringing up the OS virtual keyboard
+      markup += "<span class='ML__textarea'>\n                <span class='ML__textarea__textarea'\n                    tabindex=\"0\" role=\"textbox\"\n                    style='display:inline-block;height:1px;width:1px' >\n                </span>\n            </span>";
+    } else {
+      markup += '<span class="ML__textarea">' + '<textarea class="ML__textarea__textarea" autocapitalize="off" autocomplete="off" ' + 'autocorrect="off" spellcheck="false" aria-hidden="true" tabindex="0">' + '</textarea>' + '</span>';
+    }
+  } else {
+    if (typeof this.config.substituteTextArea === 'string') {
+      markup += this.config.substituteTextArea;
+    } else {
+      // We don't really need this one, but we keep it here so that the
+      // indexes below remain the same whether a substituteTextArea is
+      // provided or not.
+      markup += '<span></span>';
+    }
+  }
+
+  markup += '<span class="ML__fieldcontainer">' + '<span class="ML__fieldcontainer__field"></span>'; // If no value is specified for the virtualKeyboardMode, use 
+  // `onfocus` on touch-capable devices and `off` otherwise.
+
+  if (!this.config.virtualKeyboardMode) {
+    this.config.virtualKeyboardMode = window.matchMedia && window.matchMedia("(any-pointer: coarse)").matches ? 'onfocus' : 'off';
+  } // Only display the virtual keyboard toggle if the virtual keyboard mode is
+  // 'manual'
+
+
+  if (this.config.virtualKeyboardMode === 'manual') {
+    markup += "<button class=\"ML__virtual-keyboard-toggle\" data-tooltip=\"".concat((0, _l10n.l10n)('tooltip.toggle virtual keyboard'), "\">"); // data-tooltip='Toggle Virtual Keyboard'
+
+    if (this.config.virtualKeyboardToggleGlyph) {
+      markup += this.config.virtualKeyboardToggleGlyph;
+    } else {
+      markup += "<span style=\"width: 21px; margin-top: 4px;\"><svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 576 512\"><path d=\"M528 64H48C21.49 64 0 85.49 0 112v288c0 26.51 21.49 48 48 48h480c26.51 0 48-21.49 48-48V112c0-26.51-21.49-48-48-48zm16 336c0 8.823-7.177 16-16 16H48c-8.823 0-16-7.177-16-16V112c0-8.823 7.177-16 16-16h480c8.823 0 16 7.177 16 16v288zM168 268v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm-336 80v-24c0-6.627-5.373-12-12-12H84c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm384 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zM120 188v-24c0-6.627-5.373-12-12-12H84c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm-96 152v-8c0-6.627-5.373-12-12-12H180c-6.627 0-12 5.373-12 12v8c0 6.627 5.373 12 12 12h216c6.627 0 12-5.373 12-12z\"/></svg></span>";
+    }
+
+    markup += '</button>';
+  } else {
+    markup += '<span ></span>';
+  }
+
+  markup += '</span>';
+  markup += "\n        <div class=\"sr-only\">\n            <span aria-live=\"assertive\" aria-atomic=\"true\"></span>\n            <span></span>\n        </div>\n    ";
+  this.element.innerHTML = markup;
+  var iChild = 0; // index of child -- used to make changes below easier
+
+  if (typeof this.config.substituteTextArea === 'function') {
+    this.textarea = this.config.substituteTextArea();
+  } else {
+    this.textarea = this.element.children[iChild++].firstElementChild;
+  }
+
+  this.field = this.element.children[iChild].children[0]; // Listen to 'wheel' events to scroll (horizontally) the field when it overflows
+
+  this.field.addEventListener('wheel', function (ev) {
+    ev.preventDefault();
+    ev.stopPropagation();
+    var wheelDelta = typeof ev.deltaX === 'undefined' ? ev.detail : -ev.deltaX;
+    if (!isFinite(wheelDelta)) wheelDelta = ev.wheelDelta / 10;
+
+    _this.field.scroll({
+      top: 0,
+      left: _this.field.scrollLeft - wheelDelta * 5
+    });
+  }, {
+    passive: false
+  });
+  this.virtualKeyboardToggleDOMNode = this.element.children[iChild++].children[1];
+
+  this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode, {
+    default: 'toggleVirtualKeyboard',
+    alt: 'toggleVirtualKeyboardAlt',
+    shift: 'toggleVirtualKeyboardShift'
+  });
+
+  this.ariaLiveText = this.element.children[iChild].children[0];
+  this.accessibleNode = this.element.children[iChild++].children[1]; // Some panels are shared amongst instances of mathfield
+  // (there's a single instance in the document)
+
+  this.popover = getSharedElement('mathlive-popover-panel', 'ML__popover');
+  this.keystrokeCaption = getSharedElement('mathlive-keystroke-caption-panel', 'ML__keystroke-caption'); // The keystroke caption panel and the command bar are
+  // initially hidden
+
+  this.keystrokeCaptionVisible = false;
+  this.virtualKeyboardVisible = false;
+  this.keystrokeBuffer = '';
+  this.keystrokeBufferStates = [];
+  this.keystrokeBufferResetTimer = null; // This index indicates which of the suggestions available to
+  // display in the popover panel
+
+  this.suggestionIndex = 0; // The input mode (text, math, command)
+  // While mathlist.anchorMode() represent the mode of the current selection,
+  // this.mode is the mode chosen by the user. It indicates the mode the 
+  // next character typed will be interpreted in. 
+  // It is often identical to mathlist.anchorMode() since changing the selection
+  // changes the mode, but sometimes it is not, for example when a user 
+  // enters a mode changing command.
+
+  this.mode = config.defaultMode || 'math';
+  this.smartModeSuppressed = false; // Current style (color, weight, italic, etc...) 
+  // Reflects the style to be applied on next insertion, if any
+
+  this.style = {}; // Focus/blur state
+
+  this.blurred = true;
+  on(this.element, 'focus', this);
+  on(this.element, 'blur', this); // Capture clipboard events
+
+  on(this.textarea, 'cut', this);
+  on(this.textarea, 'copy', this);
+  on(this.textarea, 'paste', this); // Delegate keyboard events
+
+  _editorKeyboard.default.delegateKeyboardEvents(this.textarea, {
+    container: this.element,
+    allowDeadKey: function allowDeadKey() {
+      return _this.mode === 'text';
+    },
+    typedText: this._onTypedText.bind(this),
+    paste: this._onPaste.bind(this),
+    keystroke: this._onKeystroke.bind(this),
+    focus: this._onFocus.bind(this),
+    blur: this._onBlur.bind(this)
+  }); // Delegate mouse and touch events
+
+
+  if (window.PointerEvent) {
+    // Use modern pointer events if available
+    on(this.field, 'pointerdown', this);
+  } else {
+    on(this.field, 'touchstart:active mousedown', this);
+  } // Request notification for when the window is resized (
+  // or the device switched from portrait to landscape) to adjust
+  // the UI (popover, etc...)
+
+
+  on(window, 'resize', this); // Override some handlers in the config
+
+  var localConfig = _objectSpread({}, config);
+
+  localConfig.onSelectionDidChange = MathField.prototype._onSelectionDidChange.bind(this);
+  localConfig.onContentDidChange = MathField.prototype._onContentDidChange.bind(this);
+  localConfig.onAnnounce = this.config.onAnnounce;
+  localConfig.macros = this.config.macros;
+  localConfig.removeExtraneousParentheses = this.config.removeExtraneousParentheses;
+  this.mathlist = new _editorEditableMathlist.default.EditableMathlist(localConfig, this); // Prepare to manage undo/redo
+
+  this.undoManager = new _editorUndo.default.UndoManager(this.mathlist); // If there was some content in the element, use it for the initial
+  // value of the mathfield
+
+  if (elementText.length > 0) {
+    this.$latex(elementText);
+  } // Now start recording potentially undoable actions
+
+
+  this.undoManager.startRecording();
+  this.undoManager.snapshot(this.config);
+}
+/**
+ * handleEvent is a function invoked when an event is registered with an
+ * object instead ( see `addEventListener()` in `on()`)
+ * The name is defined by addEventListener() and cannot be changed.
+ * This pattern is used to be able to release bound event handlers, 
+ * (event handlers that need access to `this`) as the bind() function
+ * would create a new function that would have to be kept track off
+ * to be able to properly remove the event handler later.
+ */
+
+
+MathField.prototype.handleEvent = function (evt) {
+  var _this2 = this;
+
+  switch (evt.type) {
+    case 'focus':
+      this._onFocus(evt);
+
+      break;
+
+    case 'blur':
+      this._onBlur(evt);
+
+      break;
+
+    case 'touchstart':
+      this._onPointerDown(evt);
+
+      break;
+
+    case 'mousedown':
+      this._onPointerDown(evt);
+
+      break;
+
+    case 'pointerdown':
+      this._onPointerDown(evt);
+
+      break;
+
+    case 'resize':
+      {
+        if (this._resizeTimer) window.cancelAnimationFrame(this._resizeTimer);
+        this._resizeTimer = window.requestAnimationFrame(function () {
+          return _this2._onResize();
+        });
+        break;
+      }
+
+    case 'cut':
+      this._onCut(evt);
+
+      break;
+
+    case 'copy':
+      this._onCopy(evt);
+
+      break;
+
+    case 'paste':
+      this._onPaste(evt);
+
+      break;
+
+    default:
+      console.warn('Unexpected event type', evt.type);
+  }
+};
+/**
+ * Revert this math field to its original content. After this method has been
+ * called, no other methods can be called on the MathField object. To turn the
+ * element back into a MathField, call `MathLive.makeMathField()` on the
+ * element again to get a new math field object.
+ *
+ * @method MathField#$revertToOriginalContent
+ */
+
+
+MathField.prototype.revertToOriginalContent = MathField.prototype.$revertToOriginalContent = function () {
+  this.element.innerHTML = this.originalContent;
+  this.element.mathfield = null;
+  delete this.accessibleNode;
+  delete this.ariaLiveText;
+  delete this.field;
+  off(this.textarea, 'cut', this);
+  off(this.textarea, 'copy', this);
+  off(this.textarea, 'paste', this);
+  this.textarea.remove();
+  delete this.textarea;
+  this.virtualKeyboardToggleDOMNode.remove();
+  delete this.virtualKeyboardToggleDOMNode;
+  delete releaseSharedElement(this.popover);
+  delete releaseSharedElement(this.keystrokeCaption);
+  delete releaseSharedElement(this.virtualKeyboard);
+  delete releaseSharedElement(document.getElementById('mathlive-alternate-keys-panel'));
+  off(this.element, 'pointerdown', this);
+  off(this.element, 'touchstart:active mousedown', this);
+  off(this.element, 'focus', this);
+  off(this.element, 'blur', this);
+  off(window, 'resize', this);
+};
+
+MathField.prototype._resetKeystrokeBuffer = function () {
+  this.keystrokeBuffer = '';
+  this.keystrokeBufferStates = [];
+  clearTimeout(this.keystrokeBufferResetTimer);
+};
+/**
+ * Utility function that returns the element which has the caret
+ *
+ * @param {DomElement} el
+ * @private
+ */
+
+
+function _findElementWithCaret(el) {
+  if (el.classList.contains('ML__caret') || el.classList.contains('ML__text-caret') || el.classList.contains('ML__command-caret')) {
+    return el;
+  }
+
+  var result;
+  Array.from(el.children).forEach(function (child) {
+    result = result || _findElementWithCaret(child);
+  });
+  return result;
+}
+/**
+ * Return the (x,y) client coordinates of the caret
+ *
+ * @method MathField#_getCaretPosition
+ * @private
+ */
+
+
+MathField.prototype._getCaretPosition = function () {
+  var caret = _findElementWithCaret(this.field);
+
+  if (caret) {
+    var bounds = caret.getBoundingClientRect();
+    return {
+      x: bounds.right + window.scrollX,
+      y: bounds.bottom + window.scrollY
+    };
+  }
+
+  return null;
+};
+
+MathField.prototype._getSelectionBounds = function () {
+  var selectedNodes = this.field.querySelectorAll('.ML__selected');
+
+  if (selectedNodes && selectedNodes.length > 0) {
+    var selectionRect = {
+      top: Infinity,
+      bottom: -Infinity,
+      left: Infinity,
+      right: -Infinity
+    }; // Calculate the union of the bounds of all the selected spans
+
+    selectedNodes.forEach(function (node) {
+      var bounds = node.getBoundingClientRect();
+      if (bounds.left < selectionRect.left) selectionRect.left = bounds.left;
+      if (bounds.right > selectionRect.right) selectionRect.right = bounds.right;
+      if (bounds.bottom > selectionRect.bottom) selectionRect.bottom = bounds.bottom;
+      if (bounds.top < selectionRect.top) selectionRect.top = bounds.top;
+    });
+    var fieldRect = this.field.getBoundingClientRect();
+    var w = selectionRect.right - selectionRect.left;
+    var h = selectionRect.bottom - selectionRect.top;
+    selectionRect.left = Math.ceil(selectionRect.left - fieldRect.left + this.field.scrollLeft);
+    selectionRect.right = selectionRect.left + w;
+    selectionRect.top = Math.ceil(selectionRect.top - fieldRect.top);
+    selectionRect.bottom = selectionRect.top + h;
+    return selectionRect;
+  }
+
+  return null;
+};
+/**
+ * Return a tuple of an element and a distance from point (x, y)
+ * @param {Element} el
+ * @param {number} x
+ * @param {number} y
+ * @function module:editor/mathfield#nearestElementFromPoint
+ * @private
+ */
+
+
+function nearestElementFromPoint(el, x, y) {
+  var result = {
+    element: null
+  };
+  var considerChildren = true;
+
+  if (!el.getAttribute('data-atom-id')) {
+    // This element may not have a matching atom, but its children might
+    result.distance = Number.POSITIVE_INFINITY;
+  } else {
+    result.element = el; // Calculate the (square of the) distance to the rectangle
+
+    var r = el.getBoundingClientRect();
+    var dx = Math.max(r.left - x, x - r.right);
+    var dy = Math.max(r.top - y, y - r.bottom);
+    result.distance = dx * dx + dy * dy; // Only consider children if the target is inside the (horizontal) 
+    // bounds of the element.
+    // This avoid searching the numerator/denominator when a fraction
+    // is the last element in the formula.
+
+    considerChildren = x >= r.left && x <= r.right;
+  }
+
+  if (considerChildren && el.children) {
+    Array.from(el.children).forEach(function (child) {
+      var nearest = nearestElementFromPoint(child, x, y);
+
+      if (nearest.element && nearest.distance <= result.distance) {
+        result = nearest;
+      }
+    });
+  }
+
+  return result;
+}
+/**
+ * @param {number} x 
+ * @param {number} y 
+ * @param {object} options
+ * @param {boolean} options.bias  if 0, the midpoint of the bounding box
+ * is considered to return the sibling. If <0, the left sibling is 
+ * favored, if >0, the right sibling
+ */
+
+
+MathField.prototype._pathFromPoint = function (x, y, options) {
+  options = options || {};
+  options.bias = options.bias || 0;
+  var result; // Try to find the deepest element that is near the point that was
+  // clicked on (the point could be outside of the element)
+
+  var nearest = nearestElementFromPoint(this.field, x, y);
+  var el = nearest.element;
+  var id = el ? el.getAttribute('data-atom-id') : null;
+
+  if (id) {
+    // Let's find the atom that has a matching ID with the element that
+    // was clicked on (or near)
+    var paths = this.mathlist.filter(function (_path, atom) {
+      // If the atom allows children to be selected, match only if
+      // the ID of  the atom matches the one we're looking for.
+      if (!atom.captureSelection) {
+        return atom.id === id;
+      } // If the atom does not allow children to be selected
+      // (captureSelection === true), the element matches if any of
+      // its children has an ID that matches.
+
+
+      return atom.filter(function (childAtom) {
+        return childAtom.id === id;
+      }).length > 0;
+    });
+
+    if (paths && paths.length > 0) {
+      // (There should be exactly one atom that matches this ID...)
+      // Set the result to the path to this atom
+      result = _editorMathpath.default.pathFromString(paths[0]).path;
+
+      if (options.bias === 0) {
+        // If the point clicked is to the left of the vertical midline,
+        // adjust the path to *before* the atom (i.e. after the
+        // preceding atom)
+        var bounds = el.getBoundingClientRect();
+
+        if (x < bounds.left + bounds.width / 2 && !el.classList.contains('ML__placeholder')) {
+          result[result.length - 1].offset = Math.max(0, result[result.length - 1].offset - 1);
+        }
+      } else if (options.bias < 0) {
+        result[result.length - 1].offset = Math.min(this.mathlist.siblings().length - 1, Math.max(0, result[result.length - 1].offset + options.bias));
+      }
+    }
+  }
+
+  return result;
+};
+
+var lastTap;
+var tapCount = 0;
+
+MathField.prototype._onPointerDown = function (evt) {
+  var that = this;
+  var anchor;
+  var trackingPointer = false;
+  var trackingWords = false;
+  var dirty = false; // If a mouse button other than the main one was pressed, return
+
+  if (evt.buttons !== 1) return;
+
+  function endPointerTracking(evt) {
+    if (window.PointerEvent) {
+      off(that.field, 'pointermove', onPointerMove);
+      off(that.field, 'pointerend pointerleave pointercancel', endPointerTracking); // off(window, 'pointermove', onPointerMove);
+      // off(window, 'pointerup blur', endPointerTracking);
+
+      that.field.releasePointerCapture(evt.pointerId);
+    } else {
+      off(that.field, 'touchmove', onPointerMove);
+      off(that.field, 'touchend touchleave', endPointerTracking);
+      off(window, 'mousemove', onPointerMove);
+      off(window, 'mouseup blur', endPointerTracking);
+    }
+
+    trackingPointer = false;
+    clearInterval(scrollInterval);
+    that.element.querySelectorAll('.ML__scroller').forEach(function (x) {
+      return x.parentNode.removeChild(x);
+    });
+    evt.preventDefault();
+    evt.stopPropagation();
+  }
+
+  var scrollLeft = false;
+  var scrollRight = false;
+  var scrollInterval = setInterval(function () {
+    if (scrollLeft) {
+      that.field.scroll({
+        top: 0,
+        left: that.field.scrollLeft - 16
+      });
+    } else if (scrollRight) {
+      that.field.scroll({
+        top: 0,
+        left: that.field.scrollLeft + 16
+      });
+    }
+  }, 32);
+
+  function onPointerMove(evt) {
+    var x = evt.touches ? evt.touches[0].clientX : evt.clientX;
+    var y = evt.touches ? evt.touches[0].clientY : evt.clientY; // Ignore events that are within small spatial and temporal bounds 
+    // of the pointer down
+
+    var hysteresis = evt.pointerType === 'touch' ? 20 : 5;
+
+    if (Date.now() < anchorTime + 500 && Math.abs(anchorX - x) < hysteresis && Math.abs(anchorY - y) < hysteresis) {
+      evt.preventDefault();
+      evt.stopPropagation();
+      return;
+    }
+
+    var fieldBounds = that.field.getBoundingClientRect();
+    scrollRight = x > fieldBounds.right;
+    scrollLeft = x < fieldBounds.left;
+    var actualAnchor = anchor;
+
+    if (window.PointerEvent) {
+      if (!evt.isPrimary) {
+        actualAnchor = that._pathFromPoint(evt.clientX, evt.clientY, {
+          bias: 0
+        });
+      }
+    } else {
+      if (evt.touches && evt.touches.length === 2) {
+        actualAnchor = that._pathFromPoint(evt.touches[1].clientX, evt.touches[1].clientY, {
+          bias: 0
+        });
+      }
+    }
+
+    var focus = that._pathFromPoint(x, y, {
+      bias: x <= anchorX ? x === anchorX ? 0 : -1 : +1
+    });
+
+    if (focus && that.mathlist.setRange(actualAnchor, focus, {
+      extendToWordBoundary: trackingWords
+    })) {
+      // Re-render if the range has actually changed
+      that._requestUpdate();
+    } // Prevent synthetic mouseMove event when this is a touch event
+
+
+    evt.preventDefault();
+    evt.stopPropagation();
+  }
+
+  var anchorX = evt.touches ? evt.touches[0].clientX : evt.clientX;
+  var anchorY = evt.touches ? evt.touches[0].clientY : evt.clientY;
+  var anchorTime = Date.now(); // Calculate the tap count 
+
+  if (lastTap && Math.abs(lastTap.x - anchorX) < 5 && Math.abs(lastTap.y - anchorY) < 5 && Date.now() < lastTap.time + 500) {
+    tapCount += 1;
+    lastTap.time = anchorTime;
+  } else {
+    lastTap = {
+      x: anchorX,
+      y: anchorY,
+      time: anchorTime
+    };
+    tapCount = 1;
+  }
+
+  var bounds = this.field.getBoundingClientRect();
+
+  if (anchorX >= bounds.left && anchorX <= bounds.right && anchorY >= bounds.top && anchorY <= bounds.bottom) {
+    // Create divs to block out pointer tracking to the left and right of 
+    // the math field (to avoid triggering the hover of the virtual 
+    // keyboard toggle, for example)
+    var div = document.createElement('div');
+    div.className = 'ML__scroller';
+    this.element.appendChild(div);
+    div.style.left = bounds.left - 200 + 'px';
+    div = document.createElement('div');
+    div.className = 'ML__scroller';
+    this.element.appendChild(div);
+    div.style.left = bounds.right + 'px'; // Focus the math field
+
+    if (!this.hasFocus()) {
+      dirty = true;
+      if (this.textarea.focus) this.textarea.focus();
+    } // Clicking or tapping the field resets the keystroke buffer and 
+    // smart mode
+
+
+    this._resetKeystrokeBuffer();
+
+    this.smartModeSuppressed = false;
+    anchor = this._pathFromPoint(anchorX, anchorY, {
+      bias: 0
+    });
+
+    if (anchor) {
+      if (evt.shiftKey) {
+        // Extend the selection if the shift-key is down
+        this.mathlist.setRange(this.mathlist.path, anchor);
+        anchor = _editorMathpath.default.clone(this.mathlist.path);
+        anchor[anchor.length - 1].offset -= 1;
+      } else {
+        this.mathlist.setPath(anchor, 0);
+      } // The selection has changed, so we'll need to re-render
+
+
+      dirty = true; // Reset any user-specified style
+
+      this.style = {}; // evt.detail contains the number of consecutive clicks
+      // for double-click, triple-click, etc...
+      // (note that evt.detail is not set when using pointerEvent)
+
+      if (evt.detail === 3 || tapCount > 2) {
+        endPointerTracking(evt);
+
+        if (evt.detail === 3 || tapCount === 3) {
+          // This is a triple-click
+          this.mathlist.selectAll_();
+        }
+      } else if (!trackingPointer) {
+        trackingPointer = true;
+
+        if (window.PointerEvent) {
+          on(that.field, 'pointermove', onPointerMove);
+          on(that.field, 'pointerend pointercancel pointerup', endPointerTracking);
+          that.field.setPointerCapture(evt.pointerId);
+        } else {
+          on(window, 'blur', endPointerTracking);
+
+          if (evt.touches) {
+            // To receive the subsequent touchmove/touch, need to
+            // listen to this evt.target.
+            // This was a touch event
+            on(evt.target, 'touchmove', onPointerMove);
+            on(evt.target, 'touchend', endPointerTracking);
+          } else {
+            on(window, 'mousemove', onPointerMove);
+            on(window, 'mouseup', endPointerTracking);
+          }
+        }
+
+        if (evt.detail === 2 || tapCount === 2) {
+          // This is a double-click
+          trackingWords = true;
+          this.mathlist.selectGroup_();
+        }
+      }
+    }
+  } else {
+    lastTap = null;
+  }
+
+  if (dirty) this._requestUpdate(); // Prevent the browser from handling, in particular when this is a
+  // touch event prevent the synthetic mouseDown event from being generated
+
+  evt.preventDefault();
+};
+
+MathField.prototype._onSelectionDidChange = function () {
+  // Every atom before the new caret position is now committed
+  this.mathlist.commitCommandStringBeforeInsertionPoint(); // If the selection is not collapsed, put it in the textarea
+  // This will allow cut/copy to work.
+
+  var result = '';
+  this.mathlist.forEachSelected(function (atom) {
+    result += atom.toLatex();
+  });
+
+  if (result) {
+    this.textarea.value = result; // The textarea may be a span (on mobile, for example), so check that
+    // it has a select() before calling it.
+
+    if (this.hasFocus() && this.textarea.select) {
+      this.textarea.select();
+    }
+  } else {
+    this.textarea.value = '';
+    this.textarea.setAttribute('aria-label', '');
+  } // Update the mode
+
+
+  {
+    var previousMode = this.mode;
+    this.mode = this.mathlist.anchorMode() || this.config.defaultMode;
+
+    if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') {
+      this.config.onModeChange(this, this.mode);
+    }
+
+    if (previousMode === 'command' && this.mode !== 'command') {
+      _editorPopover.default.hidePopover(this);
+
+      this.mathlist.removeCommandString();
+    }
+  } // Defer the updating of the popover position: we'll need the tree to be
+  // re-rendered first to get an updated caret position
+
+  _editorPopover.default.updatePopoverPosition(this, {
+    deferred: true
+  }); // Invoke client handlers, if provided.
+
+
+  if (typeof this.config.onSelectionDidChange === 'function') {
+    this.config.onSelectionDidChange(this);
+  }
+};
+
+MathField.prototype._onContentDidChange = function () {
+  if (this.undoManager.canRedo()) {
+    this.element.classList.add('can-redo');
+  } else {
+    this.element.classList.remove('can-redo');
+  }
+
+  if (this.undoManager.canUndo()) {
+    this.element.classList.add('can-undo');
+  } else {
+    this.element.classList.remove('can-undo');
+  }
+
+  if (typeof this.config.onContentDidChange === 'function') {
+    this.config.onContentDidChange(this);
+  }
+};
+/* Returns the speech text of the next atom after the selection or
+ *   an 'end of' phrasing based on what structure we are at the end of
+ */
+
+
+MathField.prototype._nextAtomSpeechText = function (oldMathlist) {
+  function relation(parent, leaf) {
+    var EXPR_NAME = {
+      //    'array': 'should not happen',
+      'numer': 'numerator',
+      'denom': 'denominator',
+      'index': 'index',
+      'body': 'parent',
+      'subscript': 'subscript',
+      'superscript': 'superscript'
+    };
+    var PARENT_NAME = {
+      'enclose': 'cross out',
+      // FIX -- should base on type of enclose
+      'leftright': 'fence',
+      'surd': 'square root',
+      'root': 'math field'
+    };
+    return leaf.relation === 'body' ? PARENT_NAME[parent.type] : EXPR_NAME[leaf.relation];
+  }
+
+  var oldPath = oldMathlist ? oldMathlist.path : [];
+  var path = this.mathlist.path;
+  var leaf = path[path.length - 1];
+  var result = '';
+
+  while (oldPath.length > path.length) {
+    result += 'out of ' + relation(oldMathlist.parent(), oldPath[oldPath.length - 1]) + '; ';
+    oldPath.pop();
+  }
+
+  if (!this.mathlist.isCollapsed()) {
+    return speakableText(this, '', this.mathlist.getSelectedAtoms());
+  } // announce start of denominator, etc
+
+
+  var relationName = relation(this.mathlist.parent(), leaf);
+
+  if (leaf.offset === 0) {
+    result += (relationName ? 'start of ' + relationName : 'unknown') + ': ';
+  }
+
+  var atom = this.mathlist.sibling(Math.max(1, this.mathlist.extent));
+
+  if (atom) {
+    result += speakableText(this, '', atom);
+  } else if (leaf.offset !== 0) {
+    // don't say both start and end
+    result += relationName ? 'end of ' + relationName : 'unknown';
+  }
+
+  return result;
+};
+
+function speakableText(mathfield, prefix, atoms) {
+  var config = Object.assign({}, mathfield.config);
+  config.textToSpeechMarkup = '';
+  return prefix + _mathAtom.default.toSpeakableText(atoms, config);
+}
+/**
+ * Announce a change in selection or content via the aria-live region.
+ * This is the default implementation for this function. It can be overridden
+ * via `config.onAnnounce`
+ * @param {object} target typically, a MathField
+ * @param {string} command the command that invoked the change
+ * @param {Atom[]} [oldMathlist=[]] the previous value of mathlist before the change
+ * @param {Atom[]} [atomsToSpeak=[] ] 
+ * @method MathField#_onAnnounce
+ * @private
+ */
+
+
+function _onAnnounce(target, command, oldMathlist, atomsToSpeak) {
+  //** Fix: the focus is the end of the selection, so it is before where we want it
+  var liveText = ''; // const command = moveAmount > 0 ? "right" : "left";
+
+  if (command === 'plonk') {
+    // Use this sound to indicate (minor) errors, for
+    // example when a command has no effect.
+    if (target.plonkSound) {
+      target.plonkSound.load();
+      target.plonkSound.play().catch(function (err) {
+        return console.warn(err);
+      });
+    } // As a side effect, reset the keystroke buffer
+
+
+    target._resetKeystrokeBuffer();
+  } else if (command === 'delete') {
+    liveText = speakableText(target, 'deleted: ', atomsToSpeak); //*** FIX: could also be moveUp or moveDown -- do something different like provide context???
+  } else if (command === 'focus' || /move/.test(command)) {
+    //*** FIX -- should be xxx selected/unselected */
+    liveText = (target.mathlist.isCollapsed() ? '' : 'selected: ') + target._nextAtomSpeechText(oldMathlist);
+  } else if (command === 'replacement') {
+    // announce the contents
+    liveText = speakableText(target, '', target.mathlist.sibling(0));
+  } else if (command === 'line') {
+    // announce the current line -- currently that's everything
+    liveText = speakableText(target, '', target.mathlist.root);
+    target.accessibleNode.innerHTML = '<math xmlns="http://www.w3.org/1998/Math/MathML">' + _mathAtom.default.toMathML(target.mathlist.root, target.config) + '</math>';
+    target.textarea.setAttribute('aria-label', 'after: ' + liveText);
+    /*** FIX -- testing hack for setting braille ***/
+    // target.accessibleNode.focus();
+    // console.log("before sleep");
+    // sleep(1000).then(() => {
+    //     target.textarea.focus();
+    //     console.log("after sleep");
+    // });
+  } else {
+    liveText = atomsToSpeak ? speakableText(target, command + " ", atomsToSpeak) : command;
+  } // aria-live regions are only spoken when it changes; force a change by
+  // alternately using nonbreaking space or narrow nonbreaking space
+
+
+  var ariaLiveChangeHack = /\u00a0/.test(target.ariaLiveText.textContent) ? " \u202F " : " \xA0 ";
+  target.ariaLiveText.textContent = liveText + ariaLiveChangeHack; // this.textarea.setAttribute('aria-label', liveText + ariaLiveChangeHack);
+}
+
+MathField.prototype._announce = function (command, mathlist, atoms) {
+  if (typeof this.config.onAnnounce === 'function') {
+    this.config.onAnnounce(this, command, mathlist, atoms);
+  }
+};
+
+MathField.prototype._onFocus = function () {
+  if (this.blurred) {
+    this.blurred = false; // The textarea may be a span (on mobile, for example), so check that
+    // it has a focus() before calling it.
+
+    if (this.textarea.focus) this.textarea.focus();
+
+    if (this.config.virtualKeyboardMode === 'onfocus') {
+      this.showVirtualKeyboard_();
+    }
+
+    _editorPopover.default.updatePopoverPosition(this);
+
+    if (this.config.onFocus) this.config.onFocus(this);
+
+    this._requestUpdate();
+  }
+};
+
+MathField.prototype._onBlur = function () {
+  if (!this.blurred) {
+    this.blurred = true;
+    this.ariaLiveText.textContent = '';
+
+    if (this.config.virtualKeyboardMode === 'onfocus') {
+      this.hideVirtualKeyboard_();
+    }
+
+    this.complete_({
+      discard: true
+    });
+
+    this._requestUpdate();
+
+    if (this.config.onBlur) this.config.onBlur(this);
+  }
+};
+
+MathField.prototype._onResize = function () {
+  this.element.classList.remove('ML__isNarrowWidth', 'ML__isWideWidth', 'ML__isExtendedWidth');
+
+  if (window.innerWidth >= 1024) {
+    this.element.classList.add('ML__isExtendedWidth');
+  } else if (window.innerWidth >= 768) {
+    this.element.classList.add('ML__isWideWidth');
+  } else {
+    this.element.classList.add('ML__isNarrowWidth');
+  }
+
+  _editorPopover.default.updatePopoverPosition(this);
+};
+
+MathField.prototype.toggleKeystrokeCaption_ = function () {
+  this.keystrokeCaptionVisible = !this.keystrokeCaptionVisible;
+  this.keystrokeCaption.innerHTML = '';
+
+  if (!this.keystrokeCaptionVisible) {
+    this.keystrokeCaption.style.visibility = 'hidden';
+  }
+};
+
+MathField.prototype._showKeystroke = function (keystroke) {
+  var vb = this.keystrokeCaption;
+
+  if (vb && this.keystrokeCaptionVisible) {
+    var bounds = this.element.getBoundingClientRect();
+    vb.style.left = bounds.left + 'px';
+    vb.style.top = bounds.top - 64 + 'px';
+    vb.innerHTML = '<span>' + (_editorShortcuts.default.stringify(keystroke) || keystroke) + '</span>' + vb.innerHTML;
+    vb.style.visibility = 'visible';
+    setTimeout(function () {
+      if (vb.childNodes.length > 0) {
+        vb.removeChild(vb.childNodes[vb.childNodes.length - 1]);
+      }
+
+      if (vb.childNodes.length === 0) {
+        vb.style.visibility = 'hidden';
+      }
+    }, 3000);
+  }
+};
+/**
+ * @param {string|string[]} command - A selector, or an array whose first element
+ * is a selector, and whose subsequent elements are arguments to the selector.
+ * Note that selectors do not include a final "_". They can be passed either 
+ * in camelCase or kebab-case. So:
+ * ```javascript
+ * mf.$perform('selectAll');
+ * mf.$perform('select-all');
+ * ```
+ * both calls are valid and invoke the same selector.
+ * 
+ * @method MathField#$perform
+ */
+
+
+MathField.prototype.perform = MathField.prototype.$perform = function (command) {
+  if (!command) return false;
+  var handled = false;
+  var selector;
+  var args = [];
+  var dirty = false;
+
+  if (Array.isArray(command)) {
+    selector = command[0];
+    args = command.slice(1);
+  } else {
+    selector = command;
+  } // Convert kebab case (like-this) to camel case (likeThis).
+
+
+  selector = selector.replace(/-\w/g, function (m) {
+    return m[1].toUpperCase();
+  });
+  selector += '_';
+
+  if (typeof this.mathlist[selector] === 'function') {
+    var _this$mathlist;
+
+    if (/^(delete|transpose|add)/.test(selector)) {
+      this._resetKeystrokeBuffer();
+    }
+
+    if (/^(delete|transpose|add)/.test(selector) && this.mode !== 'command') {
+      // Update the undo state to account for the current selection
+      this.undoManager.pop();
+      this.undoManager.snapshot(this.config);
+    }
+
+    (_this$mathlist = this.mathlist)[selector].apply(_this$mathlist, _toConsumableArray(args));
+
+    if (/^(delete|transpose|add)/.test(selector) && this.mode !== 'command') {
+      this.undoManager.snapshot(this.config);
+    }
+
+    if (/^(delete)/.test(selector) && this.mode === 'command') {
+      var _command = this.mathlist.extractCommandStringAroundInsertionPoint();
+
+      var suggestions = _definitions.default.suggest(_command);
+
+      if (suggestions.length === 0) {
+        _editorPopover.default.hidePopover(this);
+      } else {
+        _editorPopover.default.showPopoverWithLatex(this, suggestions[0].match, suggestions.length > 1);
+      }
+    }
+
+    dirty = true;
+    handled = true;
+  } else if (typeof this[selector] === 'function') {
+    dirty = this[selector].apply(this, _toConsumableArray(args));
+    handled = true;
+  } // If the command changed the selection so that it is no longer 
+  // collapsed, or if it was an editing command, reset the inline
+  // shortcut buffer and the user style
+
+
+  if (!this.mathlist.isCollapsed() || /^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(selector)) {
+    this._resetKeystrokeBuffer();
+
+    this.style = {};
+  } // Render the mathlist
+
+
+  if (dirty) this._requestUpdate();
+  return handled;
+};
+/**
+ * Perform a command, but:
+ * * focus the mathfield
+ * * provide haptic and audio feedback
+ * This is used by the virtual keyboard when command keys (delete, arrows, etc..)
+ * are pressed.
+ * @param {string} command
+ */
+
+
+MathField.prototype.performWithFeedback_ = function (command) {
+  this.focus();
+
+  if (this.config.keypressVibration && navigator.vibrate) {
+    navigator.vibrate(HAPTIC_FEEDBACK_DURATION);
+  } // Convert kebab case to camel case.
+
+
+  command = command.replace(/-\w/g, function (m) {
+    return m[1].toUpperCase();
+  });
+
+  if (command === 'moveToNextPlaceholder' || command === 'moveToPreviousPlaceholder' || command === 'complete') {
+    if (this.returnKeypressSound) {
+      this.returnKeypressSound.load();
+      this.returnKeypressSound.play().catch(function (err) {
+        return console.warn(err);
+      });
+    } else if (this.keypressSound) {
+      this.keypressSound.load();
+      this.keypressSound.play().catch(function (err) {
+        return console.warn(err);
+      });
+    }
+  } else if (command === 'deletePreviousChar' || command === 'deleteNextChar' || command === 'deletePreviousWord' || command === 'deleteNextWord' || command === 'deleteToGroupStart' || command === 'deleteToGroupEnd' || command === 'deleteToMathFieldStart' || command === 'deleteToMathFieldEnd') {
+    if (this.deleteKeypressSound) {
+      this.deleteKeypressSound.load();
+      this.deleteKeypressSound.play().catch(function (err) {
+        return console.warn(err);
+      });
+    } else if (this.keypressSound) {
+      this.keypressSound.load();
+      this.keypressSound.play().catch(function (err) {
+        return console.warn(err);
+      });
+    }
+  } else if (this.keypressSound) {
+    this.keypressSound.load();
+    this.keypressSound.play().catch(function (err) {
+      return console.warn(err);
+    });
+  }
+
+  return this.perform(command);
+};
+/**
+ * Convert the atoms before the anchor to 'text' mode
+ * @param {number} count - how many atoms back to look at
+ * @param {function} until - callback to indicate when to stop
+ */
+
+
+MathField.prototype.convertLastAtomsToText_ = function (count, until) {
+  if (typeof count === 'function') {
+    until = count;
+    count = Infinity;
+  }
+
+  if (count === undefined) count = Infinity;
+  var i = 0;
+  var done = false;
+  this.mathlist.contentWillChange();
+
+  while (!done) {
+    var atom = this.mathlist.sibling(i);
+    done = count === 0 || !atom || atom.mode !== 'math' || !(/mord|textord|mpunct/.test(atom.type) || atom.type === 'mop' && /[a-zA-Z]+/.test(atom.body)) || atom.superscript || atom.subscript || until && !until(atom);
+
+    if (!done) {
+      atom.applyStyle({
+        mode: 'text'
+      });
+      atom.latex = atom.body;
+    }
+
+    i -= 1;
+    count -= 1;
+  }
+
+  this.mathlist.contentDidChange();
+};
+/**
+ * Convert the atoms before the anchor to 'math' mode 'mord'
+ * @param {number} count - how many atoms back to look at
+ * @param {function} until - callback to indicate when to stop
+ */
+
+
+MathField.prototype.convertLastAtomsToMath_ = function (count, until) {
+  if (typeof count === 'function') {
+    until = count;
+    count = Infinity;
+  }
+
+  if (count === undefined) count = Infinity;
+  this.mathlist.contentWillChange();
+  var i = 0;
+  var done = false;
+
+  while (!done) {
+    var atom = this.mathlist.sibling(i);
+    done = count === 0 || !atom || atom.mode !== 'text' || atom.body === ' ' || until && !until(atom);
+
+    if (!done) {
+      atom.applyStyle({
+        mode: 'math',
+        type: 'mord'
+      });
+    }
+
+    i -= 1;
+    count -= 1;
+  }
+
+  this.removeIsolatedSpace_();
+  this.mathlist.contentDidChange();
+};
+/**
+ * Going backwards from the anchor, if a text zone consisting of a single
+ * space character is found (i.e. it is surrounded by math zone), 
+ * remove it.
+ */
+
+
+MathField.prototype.removeIsolatedSpace_ = function () {
+  var i = 0;
+
+  while (this.mathlist.sibling(i) && this.mathlist.sibling(i).mode === 'math') {
+    i -= 1;
+  } // If the atom before the last one converted is a
+  // text mode space, preceded by a math mode atom,
+  // remove the space
+
+
+  if (this.mathlist.sibling(i) && this.mathlist.sibling(i).mode === 'text' && this.mathlist.sibling(i).body === ' ' && (!this.mathlist.sibling(i - 1) || this.mathlist.sibling(i - 1).mode === 'math')) {
+    this.mathlist.contentWillChange();
+    this.mathlist.siblings().splice(i - 1, 1);
+    this.mathlist.contentDidChange(); // We need to adjust the selection after doing some surgery on the atoms list
+    // But we don't want to receive selection notification changes 
+    // which could have a side effect of changing the mode :(
+
+    var save = this.mathlist.suppressChangeNotifications;
+    this.mathlist.suppressChangeNotifications = true;
+    this.mathlist.setSelection(this.mathlist.anchorOffset() - 1);
+    this.mathlist.suppressChangeNotifications = save;
+  }
+};
+/**
+ * Return the characters before anchor that could potentially be turned
+ * into text mode.
+ * This excludes things like 'mop' (e.g. \sin)
+ * @return {string}
+ * @method MathField#getTextBeforeAnchor_
+ * @private
+ */
+
+
+MathField.prototype.getTextBeforeAnchor_ = function () {
+  // Going backwards, accumulate
+  var result = '';
+  var i = 0;
+  var done = false;
+
+  while (!done) {
+    var atom = this.mathlist.sibling(i);
+    done = !(atom && (atom.mode === 'text' && !atom.type || atom.mode === 'math' && /mord|textord|mpunct/.test(atom.type)));
+
+    if (!done) {
+      result = atom.body + result;
+    }
+
+    i -= 1;
+  }
+
+  return result;
+};
+/**
+ * Consider whether to switch mode give the content before the anchor
+ * and the character being input
+ * 
+ * @param {string} keystroke
+ * @param {Event} evt - a Event corresponding to the keystroke
+ * @method MathField#smartMode_
+ * @return {boolean} true if the mode should change
+ * @private
+ */
+
+
+MathField.prototype.smartMode_ = function (keystroke, evt) {
+  if (this.smartModeSuppressed) return false;
+  if (this.mathlist.endOffset() < this.mathlist.siblings().length - 1) return false;
+  if (!evt || evt.ctrlKey || evt.metaKey) return false;
+
+  var c = _editorKeyboard.default.eventToChar(evt);
+
+  if (c.length > 1) return false; // Backspace, Left, etc...
+
+  if (!this.mathlist.isCollapsed()) {
+    // There is a selection
+    if (this.mode === 'text') {
+      if (/[/_^]/.test(c)) return true;
+    }
+
+    return false;
+  }
+
+  var context = this.getTextBeforeAnchor_() + c;
+
+  if (this.mode === 'text') {
+    // We're in text mode. Should we switch to math?
+    if (keystroke === 'Esc' || /[/\\]/.test(c)) {
+      // If this is a command for a fraction,
+      // or the '\' command mode key
+      // switch to 'math'
+      return true;
+    }
+
+    if (/[\^_]/.test(c)) {
+      // If this is a superscript or subscript
+      // switch to 'math'
+      if (/(^|\s)[a-zA-Z][^_]$/.test(context)) {
+        // If left hand context is a single letter,
+        // convert it to math
+        this.convertLastAtomsToMath_(1);
+      }
+
+      return true;
+    } // If this is a closing matching fence
+    // switch to 'math' mode
+
+
+    var lFence = {
+      ')': '(',
+      '}': '{',
+      ']': '['
+    }[c];
+
+    if (lFence && this.mathlist.parent() && this.mathlist.parent().type === 'leftright' && this.mathlist.parent().leftDelim === lFence) {
+      return true;
+    }
+
+    if (/(^|[^a-zA-Z])(a|I)[ ]$/.test(context)) {
+      // Single letters that are valid words in the current language
+      // Do nothing. @todo: localization
+      return false;
+    }
+
+    if (/[\$\xA2-\xA5\u0E3F\u20A1\u20A4\u20A7-\u20A9\u20AC\u20B1\u20B9\u20BA]/.test(c)) {
+      // A currency symbol.
+      // Switch to math mode
+      return true;
+    }
+
+    if (/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(context)) {
+      // An isolated letter, followed by a space:
+      // Convert the letter to math, stay in text mode.
+      this.convertLastAtomsToMath_(1);
+      return false;
+    }
+
+    if (/[^0-9]\.[^0-9\s]$/.test(context)) {
+      // A period followed by something other than space or a digit
+      // and not preceded by a digit.
+      // We thought this was a text period, but turns out it's not
+      // Turn it into a \cdot
+      this.convertLastAtomsToMath_(1);
+      var atom = this.mathlist.sibling(0);
+      atom.body = '⋅'; // centered dot
+
+      atom.autoFontFamily = 'cmr';
+      atom.latex = '\\cdot';
+      return true;
+    }
+
+    if (/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(context)) {
+      // Single letter (x), followed by a non-letter (>, =...)
+      this.convertLastAtomsToMath_(1);
+      return true;
+    }
+
+    if (/\.[0-9]$/.test(context)) {
+      // If the new character is a digit, 
+      // and it was preceded by a dot (which may have been converted
+      // to text)
+      // turn the dot back into 'math'
+      this.convertLastAtomsToMath_(1);
+      return true;
+    }
+
+    if (/[(][0-9+\-.]$/.test(context)) {
+      // An open paren followed by a number
+      // Turn the paren back to math and switch.
+      this.convertLastAtomsToMath_(1);
+      return true;
+    }
+
+    if (/[(][a-z][,;]$/.test(context)) {
+      // An open paren followed by a single letter, then a "," or ";"
+      // Turn the paren back and letter to math and switch.
+      this.convertLastAtomsToMath_(2);
+      return true;
+    } // The tests above can look behind and change what had previously
+    // been entered. Now, let's just look at the typed character.
+
+
+    if (/[0-9+\-=><*|]$/.test(c)) {
+      // If this new character looks like a number,
+      // or a relational operator (=, <, >)
+      // or a "*" or "|"
+      // (note that <=, >=, etc... are handled separately as shortcuts)
+      // switch to 'math'
+      this.removeIsolatedSpace_();
+      return true;
+    }
+  } else {
+    // We're in math mode. Should we switch to text?
+    if (keystroke === 'Spacebar') {
+      this.convertLastAtomsToText_(function (a) {
+        return /[a-z][:,;.]$/.test(a.body);
+      });
+      return true;
+    }
+
+    if (/[a-zA-Z]{3,}$/.test(context) && !/(dxd|abc|xyz|uvw)$/.test(context)) {
+      // A sequence of three characters
+      // (except for some exceptions)
+      // Convert them to text.
+      this.convertLastAtomsToText_(function (a) {
+        return /[a-zA-Z:,;.]/.test(a.body);
+      });
+      return true;
+    }
+
+    if (/(^|\W)(if|If)$/i.test(context)) {
+      // @todo localization
+      this.convertLastAtomsToText_(1);
+      return true;
+    }
+
+    if (/\?|\./.test(c)) {
+      // If the last character is a period or question mark, 
+      // turn it to 'text'
+      return true;
+    }
+  }
+
+  return false;
+};
+/**
+ * @param {string} keystroke
+ * @param {Event} evt - optional, an Event corresponding to the keystroke
+ * @method MathField#_onKeystroke
+ * @private
+ */
+
+
+MathField.prototype._onKeystroke = function (keystroke, evt) {
+  var _this3 = this;
+
+  // 1. Display the keystroke in the keystroke panel (if visible)
+  this._showKeystroke(keystroke); // 2. Reset the timer for the keystroke buffer reset
+
+
+  clearTimeout(this.keystrokeBufferResetTimer); // 3. Give a chance to the custom keystroke handler to intercept the event
+
+  if (this.config.onKeystroke && !this.config.onKeystroke(this, keystroke, evt)) {
+    if (evt && evt.preventDefault) {
+      evt.preventDefault();
+      evt.stopPropagation();
+    }
+
+    return false;
+  } // 4. Let's try to find a matching shortcut or command
+
+
+  var shortcut;
+  var stateIndex;
+  var selector;
+  var resetKeystrokeBuffer = false; // 4.1 Check if the keystroke, prefixed with the previously typed keystrokes,
+  // would match a long shortcut (i.e. '~~')
+  // Ignore the key if command or control is pressed (it may be a shortcut, 
+  // see 4.3)
+
+  if (this.mode !== 'command' && (!evt || !evt.ctrlKey && !evt.metaKey)) {
+    var c = _editorKeyboard.default.eventToChar(evt); // The Backspace key will be handled as a delete command later (5.4)
+    // const c = Keyboard.eventToChar(evt);
+
+
+    if (c !== 'Backspace') {
+      if (!c || c.length > 1) {
+        // It was a non-alpha character (PageUp, End, etc...)
+        this._resetKeystrokeBuffer();
+      } else {
+        // Find the longest substring that matches a shortcut
+        var candidate = this.keystrokeBuffer + c;
+        var i = 0;
+
+        while (!shortcut && i < candidate.length) {
+          var siblings = void 0;
+
+          if (this.keystrokeBufferStates[i]) {
+            var mathlist = new _editorEditableMathlist.default.EditableMathlist();
+            mathlist.root = _mathAtom.default.makeRoot('math', _parser.default.parseTokens(_lexer.default.tokenize(this.keystrokeBufferStates[i].latex), this.config.default, null, this.config.macros));
+            mathlist.setPath(this.keystrokeBufferStates[i].selection);
+            siblings = mathlist.siblings();
+          } else {
+            siblings = this.mathlist.siblings();
+          }
+
+          shortcut = _editorShortcuts.default.forString(this.mode, siblings, candidate.slice(i), this.config);
+          i += 1;
+        }
+
+        stateIndex = i - 1;
+        this.keystrokeBuffer += c;
+        this.keystrokeBufferStates.push(this.undoManager.save());
+
+        if (_editorShortcuts.default.startsWithString(candidate, this.config).length <= 1) {
+          resetKeystrokeBuffer = true;
+        } else {
+          if (this.config.inlineShortcutTimeout) {
+            // Set a timer to reset the shortcut buffer
+            this.keystrokeBufferResetTimer = setTimeout(function () {
+              _this3._resetKeystrokeBuffer();
+            }, this.config.inlineShortcutTimeout);
+          }
+        }
+      }
+    }
+  } // 4.2. Should we switch mode?
+  // Need to check this before determing if there's a valid shortcut
+  // since if we switch to math mode, we may want to apply the shortcut
+  // e.g. "slope = rise/run"
+
+
+  if (this.config.smartMode) {
+    var previousMode = this.mode;
+
+    if (shortcut) {
+      // If we found a shortcut (e.g. "alpha"),
+      // switch to math mode and insert it
+      this.mode = 'math';
+    } else if (this.smartMode_(keystroke, evt)) {
+      this.mode = {
+        'math': 'text',
+        'text': 'math'
+      }[this.mode];
+      selector = '';
+    } // Notify of mode change
+
+
+    if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') {
+      this.config.onModeChange(this, this.mode);
+    }
+  } // 4.3 Check if this matches a keystroke shortcut
+  // Need to check this **after** checking for inline shortcuts because
+  // shift+backquote is a keystroke that inserts "\~"", but "~~" is a 
+  // shortcut for "\approx" and needs to have priority over shift+backquote
+
+
+  if (!shortcut && !selector) {
+    selector = _editorShortcuts.default.selectorForKeystroke(this.mode, keystroke);
+  } // No shortcut :( We're done.
+
+
+  if (!shortcut && !selector) return true; // 5. Perform the action matching this shortcut
+  // 5.1 Remove any error indicator (wavy underline) on the current command 
+  // sequence (if there are any)
+
+  this.mathlist.decorateCommandStringAroundInsertionPoint(false); // 5.2 If we have a `moveAfterParent` selector (usually triggered with 
+  // `spacebar), and we're at the end of a smart fence, close the fence with 
+  // an empty (.) right delimiter
+
+  var parent = this.mathlist.parent();
+
+  if (selector === 'moveAfterParent' && parent && parent.type === 'leftright' && this.mathlist.endOffset() === this.mathlist.siblings().length - 1 && this.config.smartFence && this.mathlist._insertSmartFence('.')) {
+    // Pressing the space bar (moveAfterParent selector) when at the end 
+    // of a potential smartfence will close it as a semi-open fence
+    selector = '';
+
+    this._requestUpdate(); // Re-render the closed smartfence
+
+  } // 5.3 If this is the Spacebar and we're just before or right after 
+  // a text zone, insert the space inside the text zone
+
+
+  if (this.mode === 'math' && keystroke === 'Spacebar' && !shortcut) {
+    var nextSibling = this.mathlist.sibling(1);
+    var previousSibling = this.mathlist.sibling(-1);
+
+    if (nextSibling && nextSibling.mode === 'text' || previousSibling && previousSibling.mode === 'text') {
+      this.mathlist.insert(' ', {
+        mode: 'text'
+      });
+    }
+  } // 5.4 If there's a selector, perform it.
+
+
+  if (selector && !this.perform(selector) || shortcut) {
+    // // 6.5 insert the shortcut
+    if (shortcut) {
+      // If the shortcut is a mandatory escape sequence (\}, etc...) 
+      // don't make it undoable, this would result in syntactically incorrect
+      // formulas
+      if (!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(shortcut)) {
+        // To enable the substitution to be undoable,
+        // insert the character before applying the substitution
+        var _style = _objectSpread({}, this.mathlist.anchorStyle(), this.style);
+
+        this.mathlist.insert(_editorKeyboard.default.eventToChar(evt), {
+          suppressChangeNotifications: true,
+          mode: this.mode,
+          style: _style
+        });
+        var saveMode = this.mode; // Create a snapshot with the inserted character
+
+        this.undoManager.snapshotAndCoalesce(this.config); // Revert to the state before the beginning of the shortcut
+        // (restore doesn't change the undo stack)
+
+        this.undoManager.restore(this.keystrokeBufferStates[stateIndex], _objectSpread({}, this.config, {
+          suppressChangeNotifications: true
+        }));
+        this.mode = saveMode;
+      }
+
+      this.mathlist.contentWillChange();
+      var save = this.mathlist.suppressChangeNotifications;
+      this.mathlist.suppressChangeNotifications = true; // Insert the substitute, possibly as a smart fence
+
+      var style = _objectSpread({}, this.mathlist.anchorStyle(), this.style);
+
+      this.mathlist.insert(shortcut, {
+        format: 'latex',
+        mode: this.mode,
+        style: style,
+        smartFence: true
+      }); // Check if as a result of the substitution there is now an isolated
+      // (text mode) space (surrounded by math). In which case, remove it.
+
+      this.removeIsolatedSpace_(); // Switch (back) to text mode if the shortcut ended with a space
+
+      if (shortcut.endsWith(' ')) {
+        this.mode = 'text';
+        this.mathlist.insert(' ', {
+          mode: 'text',
+          style: style
+        });
+      }
+
+      this.mathlist.suppressChangeNotifications = save;
+      this.mathlist.contentDidChange();
+      this.undoManager.snapshot(this.config);
+
+      this._requestUpdate();
+
+      this._announce('replacement'); // If we're done with the shortcuts (found a unique one), reset it.
+
+
+      if (resetKeystrokeBuffer) {
+        this._resetKeystrokeBuffer();
+      }
+    }
+  } // 6. Make sure the insertion point is scrolled into view
+
+
+  this.scrollIntoView(); // 7. Keystroke has been handled, if it wasn't caught in the default
+  // case, so prevent propagation
+
+  if (evt && evt.preventDefault) {
+    evt.preventDefault();
+    evt.stopPropagation();
+  }
+
+  return false;
+};
+/**
+ * This handler is invoked when text has been typed, pasted in or input with
+ * an input method. As a result, `text` can be a sequence of characters to
+ * be inserted.
+ * @param {string} text
+ * @param {object} options
+ * @param {boolean} options.focus - If true, the mathfield will be focused
+ * @param {boolean} options.feedback - If true, provide audio and haptic feedback
+ * @param {boolean} options.simulateKeystroke - If true, generate some synthetic
+ * keystrokes (useful to trigger inline shortcuts, for example)
+ * @param {boolean} options.commandMode - If true, switch to command mode if
+ * necessary, then insert text
+ */
+
+
+MathField.prototype._onTypedText = function (text, options) {
+  options = options || {}; // Focus, then provide audio and haptic feedback
+
+  if (options.focus) this.focus();
+
+  if (options.feedback) {
+    if (this.config.keypressVibration && navigator.vibrate) {
+      navigator.vibrate(HAPTIC_FEEDBACK_DURATION);
+    }
+
+    if (this.keypressSound) {
+      this.keypressSound.load();
+      this.keypressSound.play().catch(function (err) {
+        return console.warn(err);
+      });
+    }
+  }
+
+  if (options.commandMode && this.mode !== 'command') {
+    this.switchMode_('command');
+  } // Remove any error indicator on the current command sequence
+  // (if there is one)
+
+
+  this.mathlist.decorateCommandStringAroundInsertionPoint(false);
+
+  if (options.simulateKeystroke) {
+    // for (const c of text) {
+    var c = text.charAt(0);
+
+    var ev = _editorKeyboard.default.charToEvent(c);
+
+    if (!this.$keystroke(_editorKeyboard.default.keyboardEventToString(ev), ev)) return; // }
+  } // Insert the specified text at the current insertion point.
+  // If the selection is not collapsed, the content will be deleted first.
+
+
+  var popoverText = '';
+  var displayArrows = false;
+
+  if (this.pasteInProgress) {
+    this.pasteInProgress = false; // This call was made in response to a paste event.
+    // Interpret `text` as a 'smart' expression (could be LaTeX, could be 
+    // UnicodeMath)
+
+    this.mathlist.insert(text, {
+      smartFence: this.config.smartFence,
+      mode: 'math'
+    });
+  } else {
+    var style = _objectSpread({}, this.mathlist.anchorStyle(), this.style); // Decompose the string into an array of graphemes.
+    // This is necessary to correctly process what is displayed as a single
+    // glyph (a grapheme) but which is composed of multiple Unicode 
+    // codepoints. This is the case in particular for some emojis, such as
+    // those with a skin tone modifier, the country flags emojis or 
+    // compound emojis such as the professional emojis, including the
+    // David Bowie emoji: 👨🏻‍🎤
+
+
+    var graphemes = _graphemeSplitter.default.splitGraphemes(text);
+
+    var _iteratorNormalCompletion3 = true;
+    var _didIteratorError3 = false;
+    var _iteratorError3 = undefined;
+
+    try {
+      for (var _iterator3 = graphemes[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+        var _c = _step3.value;
+
+        if (this.mode === 'command') {
+          this.mathlist.removeSuggestion();
+          this.suggestionIndex = 0;
+          var command = this.mathlist.extractCommandStringAroundInsertionPoint();
+
+          var suggestions = _definitions.default.suggest(command + _c);
+
+          displayArrows = suggestions.length > 1;
+
+          if (suggestions.length === 0) {
+            this.mathlist.insert(_c, {
+              mode: 'command'
+            });
+
+            if (/^\\[a-zA-Z\\*]+$/.test(command + _c)) {
+              // This looks like a command name, but not a known one
+              this.mathlist.decorateCommandStringAroundInsertionPoint(true);
+            }
+
+            _editorPopover.default.hidePopover(this);
+          } else {
+            this.mathlist.insert(_c, {
+              mode: 'command'
+            });
+
+            if (suggestions[0].match !== command + _c) {
+              this.mathlist.insertSuggestion(suggestions[0].match, -suggestions[0].match.length + command.length + 1);
+            }
+
+            popoverText = suggestions[0].match;
+          }
+        } else if (this.mode === 'math') {
+          // Some characters are mapped to commands. Handle them here.
+          // This is important to handle synthetic text input and
+          // non-US keyboards, on which, fop example, the '^' key is
+          // not mapped to  'Shift-Digit6'.
+          var selector = {
+            '^': 'moveToSuperscript',
+            '_': 'moveToSubscript',
+            ' ': 'moveAfterParent'
+          }[_c];
+
+          if (selector) {
+            if (selector === 'moveToSuperscript') {
+              if (this._superscriptDepth() >= this.config.scriptDepth[1]) {
+                this._announce('plonk');
+
+                return;
+              }
+            } else if (selector === 'moveToSubscript') {
+              if (this._subscriptDepth() >= this.config.scriptDepth[0]) {
+                this._announce('plonk');
+
+                return;
+              }
+            }
+
+            this.perform(selector);
+          } else {
+            if (this.config.smartSuperscript && this.mathlist.relation() === 'superscript' && /[0-9]/.test(_c) && this.mathlist.siblings().filter(function (x) {
+              return x.type !== 'first';
+            }).length === 0) {
+              // We are inserting a digit into an empty superscript
+              // If smartSuperscript is on, insert the digit, and 
+              // exit the superscript.
+              this.mathlist.insert(_c, {
+                mode: 'math',
+                style: style
+              });
+              this.mathlist.moveAfterParent_();
+            } else {
+              this.mathlist.insert(_c, {
+                mode: 'math',
+                style: style,
+                smartFence: this.config.smartFence
+              });
+            }
+          }
+        } else if (this.mode === 'text') {
+          this.mathlist.insert(_c, {
+            mode: 'text',
+            style: style
+          });
+        }
+      }
+    } catch (err) {
+      _didIteratorError3 = true;
+      _iteratorError3 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+          _iterator3.return();
+        }
+      } finally {
+        if (_didIteratorError3) {
+          throw _iteratorError3;
+        }
+      }
+    }
+  }
+
+  if (this.mode !== 'command') {
+    this.undoManager.snapshotAndCoalesce(this.config);
+  } // Render the mathlist
+
+
+  this._requestUpdate(); // Make sure the insertion point is visible
+
+
+  this.scrollIntoView(); // Since the location of the popover depends on the position of the caret
+  // only show the popover after the formula has been rendered and the
+  // position of the caret calculated
+
+  _editorPopover.default.showPopoverWithLatex(this, popoverText, displayArrows);
+};
+/**
+ * Return a hash (32-bit integer) representing the content of the mathfield
+ * (but not the selection state)
+ */
+
+
+MathField.prototype._hash = function () {
+  var result = 0;
+  var str = this.mathlist.root.toLatex(false);
+
+  for (var i = 0; i < str.length; i++) {
+    result = result * 31 + str.charCodeAt(i);
+    result = result | 0; // Force it to a 32-bit number
+  }
+
+  return Math.abs(result);
+};
+
+MathField.prototype._requestUpdate = function () {
+  var _this4 = this;
+
+  if (!this.dirty) {
+    this.dirty = true;
+    requestAnimationFrame(function (_) {
+      return _this4._render();
+    });
+  }
+};
+/**
+ * Lay-out the math field and generate the DOM.
+ *
+ * This is usually done automatically, but if the font-size, or other geometric
+ * attributes are modified, outside of MathLive, this function may need to be
+ * called explicitly.
+ *
+ * @method MathField#render
+ * @private
+ */
+
+
+MathField.prototype._render = function (renderOptions) {
+  renderOptions = renderOptions || {};
+  this.dirty = false; //
+  // 1. Stop and reset read aloud state
+  //
+
+  if (!window.mathlive) window.mathlive = {}; //
+  // 2. Validate selection
+  //
+
+  if (!this.mathlist.anchor()) {
+    console.warn('Invalid selection, resetting it. ' + _editorMathpath.default.pathToString(this.mathlist.path));
+    this.mathlist.path = [{
+      relation: 'body',
+      offset: 0
+    }];
+  } //
+  // 3. Update selection state and blinking cursor (caret)
+  //
+
+
+  this.mathlist.forEach(function (a) {
+    a.caret = '';
+    a.isSelected = false;
+  });
+  var hasFocus = this.hasFocus();
+
+  if (this.mathlist.isCollapsed()) {
+    this.mathlist.anchor().caret = hasFocus ? this.mode : '';
+  } else {
+    this.mathlist.forEachSelected(function (a) {
+      a.isSelected = true;
+    });
+  } //
+  // 4. Create spans corresponding to the updated mathlist
+  //
+
+
+  var spans = _mathAtom.default.decompose({
+    mathstyle: 'displaystyle',
+    generateID: {
+      // Using the hash as a seed for the ID
+      // keeps the IDs the same until the content of the field changes.
+      seed: this._hash(),
+      // The `groupNumbers` flag indicates that extra spans should be generated
+      // to represent group of atoms, for example, a span to group
+      // consecutive digits to represent a number.
+      groupNumbers: renderOptions.forHighlighting
+    },
+    macros: this.config.macros
+  }, this.mathlist.root); //
+  // 5. Construct struts around the spans
+  //
+
+
+  var base = _span.default.makeSpan(spans, 'ML__base');
+
+  base.attributes = {
+    // Sometimes Google Translate kicks in an attempts to 'translate' math
+    // This doesn't work very well, so turn off translate
+    'translate': 'no',
+    // Hint to screen readers to not attempt to read this span
+    // They should use instead the 'aria-label' below.
+    'aria-hidden': 'true'
+  };
+
+  var topStrut = _span.default.makeSpan('', 'ML__strut');
+
+  topStrut.setStyle('height', base.height, 'em');
+  var struts = [topStrut];
+
+  if (base.depth !== 0) {
+    var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom');
+
+    bottomStrut.setStyle('height', base.height + base.depth, 'em');
+    bottomStrut.setStyle('vertical-align', -base.depth, 'em');
+    struts.push(bottomStrut);
+  }
+
+  struts.push(base);
+
+  var wrapper = _span.default.makeSpan(struts, 'ML__mathlive'); //
+  // 6. Generate markup and accessible node
+  //
+
+
+  this.field.innerHTML = wrapper.toMarkup(0, this.config.horizontalSpacingScale);
+  this.field.classList.toggle('ML__focused', hasFocus); // Probably want to generate content on the fly depending on what to speak
+
+  this.accessibleNode.innerHTML = "<math xmlns='http://www.w3.org/1998/Math/MathML'>" + _mathAtom.default.toMathML(this.mathlist.root, this.config) + "</math>"; //this.ariaLiveText.textContent = "";
+  //
+  // 7. Calculate selection rectangle
+  //
+
+  var selectionRect = this._getSelectionBounds();
+
+  if (selectionRect) {
+    var selectionElement = document.createElement('div');
+    selectionElement.classList.add('ML__selection');
+    selectionElement.style.position = 'absolute';
+    selectionElement.style.left = selectionRect.left + 'px';
+    selectionElement.style.top = selectionRect.top + 'px';
+    selectionElement.style.width = Math.ceil(selectionRect.right - selectionRect.left) + 'px';
+    selectionElement.style.height = Math.ceil(selectionRect.bottom - selectionRect.top - 1) + 'px';
+    this.field.insertBefore(selectionElement, this.field.childNodes[0]);
+  }
+};
+
+MathField.prototype._onPaste = function () {
+  // Make note we're in the process of pasting. The subsequent call to
+  // onTypedText() will take care of interpreting the clipboard content
+  this.pasteInProgress = true;
+  return true;
+};
+
+MathField.prototype._onCut = function () {
+  // Clearing the selection will have the side effect of clearing the
+  // content of the textarea. However, the textarea value is what will
+  // be copied to the clipboard, so defer the clearing of the selection
+  // to later, after the cut operation has been handled.
+  setTimeout(function () {
+    this.clearSelection();
+
+    this._requestUpdate();
+  }.bind(this), 0);
+  return true;
+};
+
+MathField.prototype._onCopy = function (e) {
+  if (this.mathlist.isCollapsed()) {
+    e.clipboardData.setData('text/plain', this.$text('latex-expanded'));
+    e.clipboardData.setData('application/json', this.$text('json'));
+    e.clipboardData.setData('application/xml', this.$text('mathML'));
+  } else {
+    e.clipboardData.setData('text/plain', this.$selectedText('latex-expanded'));
+    e.clipboardData.setData('application/json', this.$selectedText('json'));
+    e.clipboardData.setData('application/xml', this.$selectedText('mathML'));
+  } // Prevent the current document selection from being written to the clipboard.
+
+
+  e.preventDefault();
+};
+
+MathField.prototype.formatMathlist = function (root, format) {
+  format = format || 'latex';
+  var result = '';
+
+  if (format === 'latex' || format === 'latex-expanded') {
+    result = root.toLatex(format === 'latex-expanded');
+  } else if (format === 'mathML') {
+    result = root.toMathML(this.config);
+  } else if (format === 'spoken') {
+    result = _mathAtom.default.toSpeakableText(root, this.config);
+  } else if (format === 'spoken-text') {
+    var save = this.config.textToSpeechMarkup;
+    this.config.textToSpeechMarkup = '';
+    result = _mathAtom.default.toSpeakableText(root, this.config);
+    this.config.textToSpeechMarkup = save;
+  } else if (format === 'spoken-ssml') {
+    var _save = this.config.textToSpeechMarkup;
+    this.config.textToSpeechMarkup = 'ssml';
+    result = _mathAtom.default.toSpeakableText(root, this.config);
+    this.config.textToSpeechMarkup = _save;
+  } else if (format === 'json') {
+    var json = _mathAtom.default.toAST(root, this.config);
+
+    result = JSON.stringify(json);
+  } else if (format === 'ASCIIMath') {
+    result = (0, _outputASCIIMath.toASCIIMath)(root, this.config);
+  } else {
+    console.warn('Unknown format :', format);
+  }
+
+  return result;
+}; //
+// PUBLIC API
+//
+
+/**
+ * Return a textual representation of the mathfield.
+ * @param {string} [format='latex']. One of
+ *    * `'latex'`
+ *    * `'latex-expanded'` : all macros are recursively expanded to their definition
+ *    * `'spoken'`
+ *    * `'spoken-text'`
+ *    * `'spoken-ssml'`
+ *    * `'mathML'`
+ *    * `'json'`
+ * @return {string}
+ * @method MathField#$text
+ */
+
+
+MathField.prototype.text = MathField.prototype.$text = function (format) {
+  return this.formatMathlist(this.mathlist.root, format);
+};
+/**
+ * Return a textual representation of the selection in the mathfield.
+ * @param {string} [format='latex']. One of
+ *    * `'latex'`
+ *    * `'latex-expanded'` : all macros are recursively expanded to their definition
+ *    * `'spoken'`
+ *    * `'spoken-text'`
+ *    * `'spoken-ssml'`
+ *    * `'mathML'`
+ *    * `'json'`
+ * @return {string}
+ * @method MathField#$selectedText
+ */
+
+
+MathField.prototype.selectedText = MathField.prototype.$selectedText = function (format) {
+  var atoms = this.mathlist.getSelectedAtoms();
+  if (!atoms) return '';
+
+  var root = _mathAtom.default.makeRoot('math', atoms);
+
+  return this.formatMathlist(root, format);
+};
+/**
+ * Return true if the length of the selection is 0, that is, if it is a single
+ * insertion point.
+ * @return {boolean}
+ * @method MathField#$selectionIsCollapsed
+ */
+
+
+MathField.prototype.selectionIsCollapsed = MathField.prototype.$selectionIsCollapsed = function () {
+  return this.mathlist.isCollapsed();
+};
+/**
+ * Return the depth of the selection group. If the selection is at the root level,
+ * returns 0. If the selection is a portion of the numerator of a fraction
+ * which is at the root level, return 1. Note that in that case, the numerator
+ * would be the "selection group".
+ * @return {number}
+ * @method MathField#$selectionDepth
+ */
+
+
+MathField.prototype.selectionDepth = MathField.prototype.$selectionDepth = function () {
+  return this.mathlist.path.length;
+};
+
+MathField.prototype._superscriptDepth = function () {
+  var result = 0;
+  var i = 0;
+  var atom = this.mathlist.ancestor(i);
+  var wasSuperscript = false;
+
+  while (atom) {
+    if (atom.superscript || atom.subscript) {
+      result += 1;
+    }
+
+    if (atom.superscript) {
+      wasSuperscript = true;
+    } else if (atom.subscript) {
+      wasSuperscript = false;
+    }
+
+    i += 1;
+    atom = this.mathlist.ancestor(i);
+  }
+
+  return wasSuperscript ? result : 0;
+};
+
+MathField.prototype._subscriptDepth = function () {
+  var result = 0;
+  var i = 0;
+  var atom = this.mathlist.ancestor(i);
+  var wasSubscript = false;
+
+  while (atom) {
+    if (atom.superscript || atom.subscript) {
+      result += 1;
+    }
+
+    if (atom.superscript) {
+      wasSubscript = false;
+    } else if (atom.subscript) {
+      wasSubscript = true;
+    }
+
+    i += 1;
+    atom = this.mathlist.ancestor(i);
+  }
+
+  return wasSubscript ? result : 0;
+};
+/**
+ * Return true if the selection starts at the beginning of the selection group.
+ * @return {boolean}
+ * @method MathField#$selectionAtStart
+ */
+
+
+MathField.prototype.selectionAtStart = MathField.prototype.$selectionAtStart = function () {
+  return this.mathlist.startOffset() === 0;
+};
+/**
+ * Return true if the selection extends to the end of the selection group.
+ * @return {boolean}
+ * @method MathField#$selectionAtEnd
+ */
+
+
+MathField.prototype.selectionAtEnd = MathField.prototype.$selectionAtEnd = function () {
+  return this.mathlist.endOffset() >= this.mathlist.siblings().length - 1;
+};
+/**
+ *  True if the entire group is selected
+ * */
+
+
+MathField.prototype.groupIsSelected = function () {
+  return this.mathlist.startOffset() === 0 && this.mathlist.endOffset() >= this.mathlist.siblings().length - 1;
+};
+/**
+ * If `text` is not empty, sets the content of the mathfield to the
+ * text interpreted as a LaTeX expression.
+ * If `text` is empty (or omitted), return the content of the mahtfield as a
+ * LaTeX expression.
+ * @param {string} text
+ * 
+ * @param {Object.<string, any>} options
+ * @param {boolean} options.suppressChangeNotifications - If true, the
+ * handlers for the contentWillChange and contentDidChange notifications will 
+ * not be invoked. Default `false`.
+ * 
+ * @return {string}
+ * @method MathField#$latex
+ */
+
+
+MathField.prototype.latex = MathField.prototype.$latex = function (text, options) {
+  if (text) {
+    var oldValue = this.mathlist.root.toLatex();
+
+    if (text !== oldValue) {
+      options = options || {};
+      this.mathlist.insert(text, Object.assign({}, this.config, {
+        insertionMode: 'replaceAll',
+        selectionMode: 'after',
+        format: 'latex',
+        mode: 'math',
+        suppressChangeNotifications: options.suppressChangeNotifications
+      }));
+      this.undoManager.snapshot(this.config);
+
+      this._requestUpdate();
+    }
+
+    return text;
+  } // Return the content as LaTeX
+
+
+  return this.mathlist.root.toLatex();
+};
+/**
+ * Return the DOM element associated with this mathfield.
+ * 
+ * Note that `this.$el().mathfield = this`
+ * @return {Element}
+ * @method MathField#$el
+ */
+
+
+MathField.prototype.el = MathField.prototype.$el = function () {
+  return this.element;
+};
+
+MathField.prototype.undo_ = MathField.prototype.undo = function () {
+  this.complete_(); // Undo to the previous state
+
+  this.undoManager.undo(this.config);
+  return true;
+};
+
+MathField.prototype.redo_ = MathField.prototype.redo = function () {
+  this.complete_();
+  this.undoManager.redo(this.config);
+  return true;
+};
+
+MathField.prototype.scrollIntoView_ = MathField.prototype.scrollIntoView = function () {
+  // If a render is pending, do it now to make sure we have correct layout
+  // and caret position
+  if (this.dirty) {
+    this._render();
+  }
+
+  var pos = this._getCaretPosition();
+
+  var fieldBounds = this.field.getBoundingClientRect();
+
+  if (!pos) {
+    var selectionBounds = this._getSelectionBounds();
+
+    if (selectionBounds) {
+      pos = {
+        x: selectionBounds.right + fieldBounds.left - this.field.scrollLeft,
+        y: selectionBounds.top + fieldBounds.top - this.field.scrollTop
+      };
+    }
+  }
+
+  if (pos) {
+    var x = pos.x - window.scrollX;
+
+    if (x < fieldBounds.left) {
+      this.field.scroll({
+        top: 0,
+        left: x - fieldBounds.left + this.field.scrollLeft - 20,
+        behavior: 'smooth'
+      });
+    } else if (x > fieldBounds.right) {
+      this.field.scroll({
+        top: 0,
+        left: x - fieldBounds.right + this.field.scrollLeft + 20,
+        behavior: 'smooth'
+      });
+    }
+  }
+};
+
+MathField.prototype.scrollToStart_ = MathField.prototype.scrollToStart = function () {
+  this.field.scroll(0, 0);
+};
+
+MathField.prototype.scrollToEnd_ = MathField.prototype.scrollToEnd = function () {
+  var fieldBounds = this.field.getBoundingClientRect();
+  this.field.scroll(fieldBounds.left - window.scrollX, 0);
+};
+/**
+ *
+ * @method MathField#enterCommandMode_
+ * @private
+ */
+
+
+MathField.prototype.enterCommandMode_ = function () {
+  this.switchMode_('command');
+};
+
+MathField.prototype.copyToClipboard_ = function () {
+  this.focus(); // If the selection is empty, select the entire field before
+  // copying it.
+
+  if (this.mathlist.isCollapsed()) {
+    this.select();
+  }
+
+  document.execCommand('copy');
+  return false;
+};
+
+MathField.prototype.cutToClipboard_ = function () {
+  this.focus();
+  document.execCommand('cut');
+  return true;
+};
+
+MathField.prototype.pasteFromClipboard_ = function () {
+  this.focus();
+  document.execCommand('paste');
+  return true;
+};
+/**
+ * This method can be invoked as a selector with {@linkcode MathField#$perform $perform("insert")}
+ * or called explicitly.
+ * 
+ * It will insert the specified block of text at the current insertion point,
+ * according to the insertion mode specified. 
+ * 
+ * After the insertion, the selection will be set according to the `selectionMode`.
+ * @param {string} s - The text to be inserted
+ * 
+ * @param {Object.<string, any>} [options={}]
+ * 
+ * @param {string} options.selectionMode - Describes where the selection
+ * will be after the insertion:
+ *    * `'placeholder'`: the selection will be the first available placeholder
+ * in the item that has been inserted (default)
+ *    * `'after'`: the selection will be an insertion point after the item that
+ * has been inserted,
+ *    * `'before'`: the selection will be an insertion point before
+ * the item that has been inserted
+ *    * `'item'`: the item that was inserted will be selected
+ * 
+ * @param {string} options.mode - The mode (`'text'` or `'math'`) to use. Default
+ * is the current mode.
+ *
+ * @param {string} options.format - The format of the string `s`:
+ *    * `'auto'`: the string is interpreted as a latex fragment or command)
+ * (default)
+ *    * `'latex'`: the string is interpreted strictly as a latex fragment
+ *
+ * @param {boolean} options.focus - If true, the mathfield will be focused after 
+ * the insertion
+ * 
+ * @param {boolean} options.feedback - If true, provide audio and haptic feedback
+ * 
+ * @param {string} options.mode - 'text' or 'math'. If empty, the current mode
+ * is used (default)
+ * 
+ * @param {boolean} options.resetStyle - If true, the style after the insertion
+ * is the same as the style before (if false, the style after the 
+ * insertion is the style of the last inserted atom).
+ *
+ * @method MathField#$insert
+ */
+
+
+MathField.prototype.insert_ = MathField.prototype.insert = MathField.prototype.$insert = function (s, options) {
+  if (typeof s === 'string' && s.length > 0) {
+    options = options || {};
+    if (options.focus) this.focus();
+
+    if (options.feedback) {
+      if (this.config.keypressVibration && navigator.vibrate) {
+        navigator.vibrate(HAPTIC_FEEDBACK_DURATION);
+      }
+
+      if (this.keypressSound) {
+        this.keypressSound.load();
+        this.keypressSound.play();
+      }
+    }
+
+    if (s === '\\\\') {
+      // This string is interpreted as an "insert row after" command
+      this.mathlist.addRowAfter_();
+    } else if (s === '&') {
+      this.mathlist.addColumnAfter_();
+    } else {
+      var savedStyle = this.style;
+      this.mathlist.insert(s, _objectSpread({
+        mode: this.mode,
+        style: this.mathlist.anchorStyle()
+      }, options));
+
+      if (options.resetStyle) {
+        this.style = savedStyle;
+      }
+    }
+
+    this.undoManager.snapshot(this.config);
+
+    this._requestUpdate();
+
+    return true;
+  }
+
+  return false;
+};
+
+MathField.prototype.switchMode_ = function (mode, prefix, suffix) {
+  this._resetKeystrokeBuffer(); // Suppress (temporarily) smart mode if switching to/from text or math
+  // This prevents switching to/from command mode from supressing smart mode.
+
+
+  this.smartModeSuppressed = /text|math/.test(this.mode) && /text|math/.test(mode);
+
+  if (prefix) {
+    this.insert(prefix, {
+      format: 'latex',
+      mode: {
+        'math': 'text',
+        'text': 'math'
+      }[mode]
+    });
+  } // Remove any error indicator on the current command sequence (if there is one)
+
+
+  this.mathlist.decorateCommandStringAroundInsertionPoint(false);
+
+  if (mode === 'command') {
+    this.mathlist.removeSuggestion();
+
+    _editorPopover.default.hidePopover(this);
+
+    this.suggestionIndex = 0; // Switch to the command mode keyboard layer
+
+    if (this.virtualKeyboardVisible) {
+      this.switchKeyboardLayer_('lower-command');
+    }
+
+    this.mathlist.insert("\x1B", {
+      mode: 'math'
+    });
+  } else {
+    this.mode = mode;
+  }
+
+  if (suffix) {
+    this.insert(suffix, {
+      format: 'latex',
+      mode: mode
+    });
+  } // Notify of mode change
+
+
+  if (typeof this.config.onModeChange === 'function') {
+    this.config.onModeChange(this, this.mode);
+  }
+
+  this._requestUpdate();
+};
+/**
+ * When in command mode, insert the select command and return to math mode
+ * If escape is true, the command is discared.
+ * @param {object} options
+ * @param {boolean} options.discard if true, the command is discarded and the 
+ * mode switched back to math
+ * @param {boolean} options.acceptSuggestion if true, accept the suggestion to 
+ * complete the command. Otherwise, only use what has been entered so far. 
+ * @method MathField#complete_
+ * @private
+ */
+
+
+MathField.prototype.complete_ = function (options) {
+  options = options || {};
+
+  _editorPopover.default.hidePopover(this);
+
+  if (options.discard) {
+    this.mathlist.spliceCommandStringAroundInsertionPoint(null);
+    this.switchMode_('math');
+    return true;
+  }
+
+  var command = this.mathlist.extractCommandStringAroundInsertionPoint(!options.acceptSuggestion);
+
+  if (command) {
+    if (command === '\\(' || command === '\\)') {
+      this.mathlist.spliceCommandStringAroundInsertionPoint([]);
+      this.mathlist.insert(command.slice(1), {
+        mode: this.mode
+      });
+    } else {
+      // We'll assume we want to insert in math mode
+      // (commands are only available in math mode)
+      var mode = 'math';
+
+      if (_definitions.default.commandAllowed(mode, command)) {
+        var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(command), mode, null, this.config.macros);
+
+        this.mathlist.spliceCommandStringAroundInsertionPoint(mathlist);
+      } else {
+        // This wasn't a simple function or symbol.
+        // Interpret the input as LaTeX code
+        var _mathlist = _parser.default.parseTokens(_lexer.default.tokenize(command), mode, null, this.config.macros);
+
+        if (_mathlist) {
+          this.mathlist.spliceCommandStringAroundInsertionPoint(_mathlist);
+        } else {
+          this.mathlist.decorateCommandStringAroundInsertionPoint(true);
+        }
+      }
+    }
+
+    this.undoManager.snapshot(this.config);
+
+    this._announce('replacement');
+
+    return true;
+  }
+
+  return false;
+};
+
+MathField.prototype._updateSuggestion = function () {
+  this.mathlist.positionInsertionPointAfterCommitedCommand();
+  this.mathlist.removeSuggestion();
+  var command = this.mathlist.extractCommandStringAroundInsertionPoint();
+
+  var suggestions = _definitions.default.suggest(command);
+
+  if (suggestions.length === 0) {
+    _editorPopover.default.hidePopover(this);
+
+    this.mathlist.decorateCommandStringAroundInsertionPoint(true);
+  } else {
+    var index = this.suggestionIndex % suggestions.length;
+    var l = command.length - suggestions[index].match.length;
+
+    if (l !== 0) {
+      this.mathlist.insertSuggestion(suggestions[index].match, l);
+    }
+
+    _editorPopover.default.showPopoverWithLatex(this, suggestions[index].match, suggestions.length > 1);
+  }
+
+  this._requestUpdate();
+};
+
+MathField.prototype.nextSuggestion_ = function () {
+  this.suggestionIndex += 1; // The modulo of the suggestionIndex is used to determine which suggestion
+  // to display, so no need to worry about rolling over.
+
+  this._updateSuggestion();
+
+  return false;
+};
+
+MathField.prototype.previousSuggestion_ = function () {
+  this.suggestionIndex -= 1;
+
+  if (this.suggestionIndex < 0) {
+    // We're rolling over
+    // Get the list of suggestions, so we can know how many there are
+    // Not very efficient, but simple.
+    this.mathlist.removeSuggestion();
+    var command = this.mathlist.extractCommandStringAroundInsertionPoint();
+
+    var suggestions = _definitions.default.suggest(command);
+
+    this.suggestionIndex = suggestions.length - 1;
+  }
+
+  this._updateSuggestion();
+
+  return false;
+};
+/**
+ * Attach event handlers to an element so that it will react by executing
+ * a command when pressed.
+ * `'command'` can be:
+ * - a string, a single selector
+ * - an array, whose first element is a selector followed by one or more arguments.
+ * - an object, with the following keys:
+ *    * 'default': command performed on up, with a down + up sequence with no
+ *      delay between down and up
+ *    * 'alt', 'shift', 'altshift' keys: command performed on up with
+ *      one of these modifiers pressed
+ *    * 'pressed': command performed on 'down'
+ *    * 'pressAndHoldStart': command performed after a tap/down followed by a
+ * delay (optional)
+ *    * 'pressAndHoldEnd': command performed on up, if there was a delay
+ *     between down and up, if absent, 'default' is performed
+ * The value of the keys specify which selector (string
+ * or array) to perform depending on the keyboard state when the button is
+ * pressed.
+ *
+ * The 'pressed' and 'active' classes will get added to
+ * the element, as the :hover and :active pseudo-classes are not reliable
+ * (at least on Chrome Android).
+ *
+ * @param {Element} el
+ * @param {object|string} command
+ */
+
+
+MathField.prototype._attachButtonHandlers = function (el, command) {
+  var that = this;
+
+  if (_typeof(command) === 'object' && (command.default || command.pressed)) {
+    // Attach the default (no modifiers pressed) command to the element
+    if (command.default) {
+      el.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(command.default));
+    }
+
+    if (command.alt) {
+      el.setAttribute('data-' + this.config.namespace + 'command-alt', JSON.stringify(command.alt));
+    }
+
+    if (command.altshift) {
+      el.setAttribute('data-' + this.config.namespace + 'command-altshift', JSON.stringify(command.altshift));
+    }
+
+    if (command.shift) {
+      el.setAttribute('data-' + this.config.namespace + 'command-shift', JSON.stringify(command.shift));
+    } // .pressed: command to perform when the button is pressed (i.e.
+    // on mouse down/touch). Otherwise the command is performed when
+    // the button is released
+
+
+    if (command.pressed) {
+      el.setAttribute('data-' + this.config.namespace + 'command-pressed', JSON.stringify(command.pressed));
+    }
+
+    if (command.pressAndHoldStart) {
+      el.setAttribute('data-' + this.config.namespace + 'command-pressAndHoldStart', JSON.stringify(command.pressAndHoldStart));
+    }
+
+    if (command.pressAndHoldEnd) {
+      el.setAttribute('data-' + this.config.namespace + 'command-pressAndHoldEnd', JSON.stringify(command.pressAndHoldEnd));
+    }
+  } else {
+    // We need to turn the command into a string to attach it to the dataset
+    // associated with the button (the command could be an array made of a
+    // selector and one or more parameters)
+    el.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(command));
+  }
+
+  var pressHoldStart;
+  var pressHoldElement;
+  var touchID;
+  var syntheticTarget; // Target while touch move
+
+  var pressAndHoldTimer;
+  on(el, 'mousedown touchstart:passive', function (ev) {
+    if (ev.type !== 'mousedown' || ev.buttons === 1) {
+      // The primary button was pressed or the screen was tapped.
+      ev.stopPropagation();
+      ev.preventDefault();
+      el.classList.add('pressed');
+      pressHoldStart = Date.now(); // Record the ID of the primary touch point for tracking on touchmove
+
+      if (ev.type === 'touchstart') touchID = ev.changedTouches[0].identifier; // Parse the JSON to get the command (and its optional arguments)
+      // and perform it immediately
+
+      var _command2 = el.getAttribute('data-' + that.config.namespace + 'command-pressed');
+
+      if (_command2) {
+        that.perform(JSON.parse(_command2));
+      } // If there is a `press and hold start` command, perform it
+      // after a delay, if we're still pressed by then.
+
+
+      var pressAndHoldStartCommand = el.getAttribute('data-' + that.config.namespace + 'command-pressAndHoldStart');
+
+      if (pressAndHoldStartCommand) {
+        pressHoldElement = el;
+        if (pressAndHoldTimer) clearTimeout(pressAndHoldTimer);
+        pressAndHoldTimer = window.setTimeout(function () {
+          if (el.classList.contains('pressed')) {
+            that.perform(JSON.parse(pressAndHoldStartCommand));
+          }
+        }, 300);
+      }
+    }
+  });
+  on(el, 'mouseleave touchcancel', function () {
+    el.classList.remove('pressed'); // let command = el.getAttribute('data-' + that.config.namespace +
+    //     'command-pressAndHoldEnd');
+    // const now = Date.now();
+    // if (command && now > pressHoldStart + 300) {
+    //     that.perform(JSON.parse(command));
+    // }
+  });
+  on(el, 'touchmove:passive', function (ev) {
+    // Unlike with mouse tracking, touch tracking only sends events
+    // to the target that was originally tapped on. For consistency,
+    // we want to mimic the behavior of the mouse interaction by
+    // tracking the touch events and dispatching them to potential targets
+    ev.preventDefault();
+
+    for (var i = 0; i < ev.changedTouches.length; i++) {
+      if (ev.changedTouches[i].identifier === touchID) {
+        // Found a touch matching our primary/tracked touch
+        var target = document.elementFromPoint(ev.changedTouches[i].clientX, ev.changedTouches[i].clientY);
+
+        if (target !== syntheticTarget && syntheticTarget) {
+          syntheticTarget.dispatchEvent(new MouseEvent('mouseleave'), {
+            bubbles: true
+          });
+          syntheticTarget = null;
+        }
+
+        if (target) {
+          syntheticTarget = target;
+          target.dispatchEvent(new MouseEvent('mouseenter', {
+            bubbles: true,
+            buttons: 1
+          }));
+        }
+      }
+    }
+  });
+  on(el, 'mouseenter', function (ev) {
+    if (ev.buttons === 1) {
+      el.classList.add('pressed');
+    }
+  });
+  on(el, 'mouseup touchend click', function (ev) {
+    if (syntheticTarget) {
+      ev.stopPropagation();
+      ev.preventDefault();
+      var target = syntheticTarget;
+      syntheticTarget = null;
+      target.dispatchEvent(new MouseEvent('mouseup', {
+        bubbles: true
+      }));
+      return;
+    }
+
+    el.classList.remove('pressed');
+    el.classList.add('active');
+
+    if (ev.type === 'click' && ev.detail !== 0) {
+      // This is a click event triggered by a mouse interaction
+      // (and not a keyboard interaction)
+      // Ignore it, we'll handle the mouseup (or touchend) instead.
+      ev.stopPropagation();
+      ev.preventDefault();
+      return;
+    } // Since we want the active state to be visible for a while,
+    // use a timer to remove it after a short delay
+
+
+    window.setTimeout(function () {
+      el.classList.remove('active');
+    }, 150);
+    var command = el.getAttribute('data-' + that.config.namespace + 'command-pressAndHoldEnd');
+    var now = Date.now(); // If the button has not been pressed for very long or if we were
+    // not the button that started the press and hold, don't consider
+    // it a press-and-hold.
+
+    if (el !== pressHoldElement || now < pressHoldStart + 300) {
+      command = undefined;
+    }
+
+    if (!command && ev.altKey && ev.shiftKey) {
+      command = el.getAttribute('data-' + that.config.namespace + 'command-altshift');
+    }
+
+    if (!command && ev.altKey) {
+      command = el.getAttribute('data-' + that.config.namespace + 'command-alt');
+    }
+
+    if (!command && ev.shiftKey) {
+      command = el.getAttribute('data-' + that.config.namespace + 'command-shift');
+    }
+
+    if (!command) {
+      command = el.getAttribute('data-' + that.config.namespace + 'command');
+    }
+
+    if (command) {
+      // Parse the JSON to get the command (and its optional arguments)
+      // and perform it
+      that.perform(JSON.parse(command));
+    }
+
+    ev.stopPropagation();
+    ev.preventDefault();
+  });
+};
+
+MathField.prototype._makeButton = function (label, cls, ariaLabel, command) {
+  var button = document.createElement('span');
+  button.innerHTML = label;
+  if (cls) button.classList.add([].slice.call(cls.split(' ')));
+  if (ariaLabel) button.setAttribute('aria-label', ariaLabel);
+
+  this._attachButtonHandlers(button, command);
+
+  return button;
+};
+/**
+ * Alternate options are displayed when a key on the virtual keyboard is pressed
+ * and held.
+ *
+ */
+
+
+MathField.prototype.showAlternateKeys_ = function (keycap, altKeys) {
+  var altContainer = getSharedElement('mathlive-alternate-keys-panel', 'ML__keyboard alternate-keys');
+
+  if (this.virtualKeyboard.classList.contains('material')) {
+    altContainer.classList.add('material');
+  }
+
+  if (altKeys.length >= 7) {
+    // Width 4
+    altContainer.style.width = '286px';
+  } else if (altKeys.length === 4 || altKeys.length === 2) {
+    // Width 2
+    altContainer.style.width = '146px';
+  } else if (altKeys.length === 1) {
+    // Width 1
+    altContainer.style.width = '86px';
+  } else {
+    // Width 3
+    altContainer.style.width = '146px';
+  } // Reset container height
+
+
+  altContainer.style.height = 'auto';
+  var markup = '';
+  var _iteratorNormalCompletion4 = true;
+  var _didIteratorError4 = false;
+  var _iteratorError4 = undefined;
+
+  try {
+    for (var _iterator4 = altKeys[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
+      var altKey = _step4.value;
+      markup += '<li';
+
+      if (typeof altKey === 'string') {
+        markup += ' data-latex="' + altKey.replace(/"/g, '&quot;') + '"';
+      } else {
+        if (altKey.latex) {
+          markup += ' data-latex="' + altKey.latex.replace(/"/g, '&quot;') + '"';
+        }
+
+        if (altKey.content) {
+          markup += ' data-content="' + altKey.content.replace(/"/g, '&quot;') + '"';
+        }
+
+        if (altKey.insert) {
+          markup += ' data-insert="' + altKey.insert.replace(/"/g, '&quot;') + '"';
+        }
+
+        if (altKey.command) {
+          markup += " data-command='" + altKey.command.replace(/"/g, '&quot;') + "'";
+        }
+
+        if (altKey.aside) {
+          markup += ' data-aside="' + altKey.aside.replace(/"/g, '&quot;') + '"';
+        }
+
+        if (altKey.classes) {
+          markup += ' data-classes="' + altKey.classes + '"';
+        }
+      }
+
+      markup += '>';
+      markup += altKey.label || '';
+      markup += '</li>';
+    }
+  } catch (err) {
+    _didIteratorError4 = true;
+    _iteratorError4 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
+        _iterator4.return();
+      }
+    } finally {
+      if (_didIteratorError4) {
+        throw _iteratorError4;
+      }
+    }
+  }
+
+  markup = '<ul>' + markup + '</ul>';
+  altContainer.innerHTML = markup;
+
+  _editorVirtualKeyboard.default.makeKeycap(this, altContainer.getElementsByTagName('li'), 'performAlternateKeys');
+
+  var keycapEl = this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="' + keycap + '"]');
+  var position = keycapEl.getBoundingClientRect();
+
+  if (position) {
+    if (position.top - altContainer.clientHeight < 0) {
+      // altContainer.style.maxWidth = '320px';  // Up to six columns
+      altContainer.style.width = 'auto';
+
+      if (altKeys.length <= 6) {
+        altContainer.style.height = '56px'; // 1 row
+      } else if (altKeys.length <= 12) {
+        altContainer.style.height = '108px'; // 2 rows
+      } else {
+        altContainer.style.height = '205px'; // 3 rows
+      }
+    }
+
+    var top = (position.top - altContainer.clientHeight + 5).toString() + 'px';
+    var left = Math.max(0, Math.min(window.innerWidth - altContainer.offsetWidth, (position.left + position.right - altContainer.offsetWidth) / 2)) + 'px';
+    altContainer.style.transform = 'translate(' + left + ',' + top + ')';
+    altContainer.classList.add('is-visible');
+  }
+
+  return false;
+};
+
+MathField.prototype.hideAlternateKeys_ = function () {
+  var altContainer = document.getElementById('mathlive-alternate-keys-panel');
+
+  if (altContainer) {
+    altContainer.classList.remove('is-visible');
+    altContainer.innerHTML = '';
+    delete releaseSharedElement(altContainer);
+  }
+
+  return false;
+};
+/**
+ * The command invoked when an alternate key is pressed.
+ * We need to hide the Alternate Keys panel, then perform the
+ * command.
+ */
+
+
+MathField.prototype.performAlternateKeys_ = function (command) {
+  this.hideAlternateKeys_();
+  return this.perform(command);
+};
+
+MathField.prototype.switchKeyboardLayer_ = function (layer) {
+  if (this.config.virtualKeyboardMode !== 'off') {
+    if (layer !== 'lower-command' && layer !== 'upper-command' && layer !== 'symbols-command') {
+      // If we switch to a non-command keyboard layer, first exit command mode.
+      this.complete_();
+    }
+
+    this.showVirtualKeyboard_(); // If the alternate keys panel was visible, hide it
+
+    this.hideAlternateKeys_(); // If we were in a temporarily shifted state (shift-key held down)
+    // restore our state before switching to a new layer.
+
+    this.unshiftKeyboardLayer_();
+    var layers = this.virtualKeyboard.getElementsByClassName('keyboard-layer'); // Search for the requested layer
+
+    var found = false;
+
+    for (var i = 0; i < layers.length; i++) {
+      if (layers[i].id === layer) {
+        found = true;
+        break;
+      }
+    } // We did find the layer, switch to it.
+    // If we didn't find it, do nothing and keep the current layer
+
+
+    if (found) {
+      for (var _i = 0; _i < layers.length; _i++) {
+        if (layers[_i].id === layer) {
+          layers[_i].classList.add('is-visible');
+        } else {
+          layers[_i].classList.remove('is-visible');
+        }
+      }
+    }
+
+    this.focus();
+  }
+
+  return true;
+};
+/**
+ * Temporarily change the labels and the command of the keys
+ * (for example when a modifier key is held down.)
+ */
+
+
+MathField.prototype.shiftKeyboardLayer_ = function () {
+  var keycaps = this.virtualKeyboard.querySelectorAll('div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action');
+
+  if (keycaps) {
+    for (var i = 0; i < keycaps.length; i++) {
+      var keycap = keycaps[i];
+      var shiftedContent = keycap.getAttribute('data-shifted');
+
+      if (shiftedContent || /^[a-z]$/.test(keycap.innerHTML)) {
+        keycap.setAttribute('data-unshifted-content', keycap.innerHTML);
+
+        if (!shiftedContent) {
+          shiftedContent = keycap.innerHTML.toUpperCase();
+        }
+
+        keycap.innerHTML = shiftedContent;
+        var command = keycap.getAttribute('data-' + this.config.namespace + 'command');
+
+        if (command) {
+          keycap.setAttribute('data-unshifted-command', command);
+          var shiftedCommand = keycap.getAttribute('data-shifted-command');
+
+          if (shiftedCommand) {
+            keycap.setAttribute('data-' + this.config.namespace + 'command', shiftedCommand);
+          } else {
+            var commandObj = JSON.parse(command);
+
+            if (Array.isArray(commandObj)) {
+              commandObj[1] = commandObj[1].toUpperCase();
+            }
+
+            keycap.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(commandObj));
+          }
+        }
+      }
+    }
+  }
+
+  return false;
+};
+/**
+ * Restore the key labels and commands to the state before a modifier key
+ * was pressed.
+ *
+ */
+
+
+MathField.prototype.unshiftKeyboardLayer_ = function () {
+  var keycaps = this.virtualKeyboard.querySelectorAll('div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action');
+
+  if (keycaps) {
+    for (var i = 0; i < keycaps.length; i++) {
+      var keycap = keycaps[i];
+      var content = keycap.getAttribute('data-unshifted-content');
+
+      if (content) {
+        keycap.innerHTML = content;
+      }
+
+      var command = keycap.getAttribute('data-unshifted-command');
+
+      if (command) {
+        keycap.setAttribute('data-' + this.config.namespace + 'command', command);
+      }
+    }
+  }
+
+  return false;
+};
+
+MathField.prototype.insertAndUnshiftKeyboardLayer_ = function (c) {
+  this.insert_(c);
+  this.unshiftKeyboardLayer_();
+  return true;
+};
+/* Toggle the virtual keyboard, but switch to the alternate theme if available */
+
+
+MathField.prototype.toggleVirtualKeyboardAlt_ = function () {
+  var hadAltTheme = false;
+
+  if (this.virtualKeyboard) {
+    hadAltTheme = this.virtualKeyboard.classList.contains('material');
+    this.virtualKeyboard.remove();
+    delete this.virtualKeyboard;
+    this.virtualKeyboard = null;
+  }
+
+  this.showVirtualKeyboard_(hadAltTheme ? '' : 'material');
+  return false;
+};
+/* Toggle the virtual keyboard, but switch another keyboard layout */
+
+
+MathField.prototype.toggleVirtualKeyboardShift_ = function () {
+  this.config.virtualKeyboardLayout = {
+    'qwerty': 'azerty',
+    'azerty': 'qwertz',
+    'qwertz': 'dvorak',
+    'dvorak': 'colemak',
+    'colemak': 'qwerty'
+  }[this.config.virtualKeyboardLayout];
+  var layer = this.virtualKeyboard ? this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible') : null;
+  layer = layer ? layer.id : '';
+
+  if (this.virtualKeyboard) {
+    this.virtualKeyboard.remove();
+    delete this.virtualKeyboard;
+    this.virtualKeyboard = null;
+  }
+
+  this.showVirtualKeyboard_();
+  if (layer) this.switchKeyboardLayer_(layer);
+  return false;
+};
+
+MathField.prototype.showVirtualKeyboard_ = function (theme) {
+  this.virtualKeyboardVisible = false;
+  this.toggleVirtualKeyboard_(theme);
+  return false;
+};
+
+MathField.prototype.hideVirtualKeyboard_ = function () {
+  this.virtualKeyboardVisible = true;
+  this.toggleVirtualKeyboard_();
+  return false;
+};
+
+MathField.prototype.toggleVirtualKeyboard_ = function (theme) {
+  this.virtualKeyboardVisible = !this.virtualKeyboardVisible;
+
+  if (this.virtualKeyboardVisible) {
+    if (this.virtualKeyboard) {
+      this.virtualKeyboard.classList.add('is-visible');
+    } else {
+      // Construct the virtual keyboard
+      this.virtualKeyboard = _editorVirtualKeyboard.default.make(this, theme); // Let's make sure that tapping on the keyboard focuses the field
+
+      on(this.virtualKeyboard, 'touchstart:passive mousedown', function () {
+        that.focus();
+      });
+      document.body.appendChild(this.virtualKeyboard);
+    } // For the transition effect to work, the property has to be changed
+    // after the insertion in the DOM. Use setTimeout
+
+
+    var that = this;
+    window.setTimeout(function () {
+      that.virtualKeyboard.classList.add('is-visible');
+    }, 1);
+  } else if (this.virtualKeyboard) {
+    this.virtualKeyboard.classList.remove('is-visible');
+  }
+
+  if (typeof this.config.onVirtualKeyboardToggle === 'function') {
+    this.config.onVirtualKeyboardToggle(this, this.virtualKeyboardVisible, this.virtualKeyboard);
+  }
+
+  return false;
+};
+/**
+ * Validate a style specification object
+ * @param {object} style 
+ */
+
+
+function validateStyle(style) {
+  var result = {};
+
+  if (typeof style.mode === 'string') {
+    result.mode = style.mode.toLowerCase();
+    console.assert(result.mode === 'math' || result.mode === 'text' || result.mode === 'command');
+  }
+
+  if (typeof style.color === 'string') {
+    result.color = style.color;
+  }
+
+  if (typeof style.backgroundColor === 'string') {
+    result.backgroundColor = style.backgroundColor;
+  }
+
+  if (typeof style.fontFamily === 'string') {
+    result.fontFamily = style.fontFamily;
+  }
+
+  if (typeof style.series === 'string') {
+    result.fontSeries = style.series;
+  }
+
+  if (typeof style.fontSeries === 'string') {
+    result.fontSeries = style.fontSeries.toLowerCase();
+  }
+
+  if (result.fontSeries) {
+    result.fontSeries = {
+      "bold": 'b',
+      "medium": 'm',
+      "normal": 'mn'
+    }[result.fontSeries] || result.fontSeries;
+  }
+
+  if (typeof style.shape === 'string') {
+    result.fontShape = style.shape;
+  }
+
+  if (typeof style.fontShape === 'string') {
+    result.fontShape = style.fontShape.toLowerCase();
+  }
+
+  if (result.fontShape) {
+    result.fontShape = {
+      "italic": 'it',
+      "up": 'n',
+      "upright": 'n',
+      "normal": 'n'
+    }[result.fontShape] || result.fontShape;
+  }
+
+  if (typeof style.size === 'string') {
+    result.fontSize = style.size;
+  } else if (typeof style.size === 'number') {
+    result.fontSize = 'size' + Math.min(0, Math.max(10, style.size));
+  }
+
+  if (typeof style.fontSize === 'string') {
+    result.fontSize = style.fontSize.toLowerCase();
+  }
+
+  if (result.fontSize) {
+    result.fontSize = {
+      'tiny': 'size1',
+      'scriptsize': 'size2',
+      'footnotesize': 'size3',
+      'small': 'size4',
+      'normal': 'size5',
+      'normalsize': 'size5',
+      'large': 'size6',
+      'Large': 'size7',
+      'LARGE': 'size8',
+      'huge': 'size9',
+      'Huge': 'size10'
+    }[result.fontSize] || result.fontSize;
+  }
+
+  return result;
+}
+/**
+ * Apply a style (color, bold, italic, etc...).
+ * 
+ * If there is a selection, the style is applied to the selection
+ * 
+ * If the selection already has this style, remove it. If the selection
+ * has the style partially applied (i.e. only some sections), remove it from 
+ * those sections, and apply it to the entire selection.
+ * 
+ * If there is no selection, the style will apply to the next character typed.
+ * 
+ * @param {object} style  an object with the following properties. All the 
+ * properties are optional, but they can be combined.
+ * 
+ * @param {string} [style.mode=''] - Either `'math'`, `'text'` or '`command`'
+ * @param {string} [style.color=''] - The text/fill color, as a CSS RGB value or
+ * a string for some 'well-known' colors, e.g. 'red', '#f00', etc...
+ * 
+ * @param {string} [style.backgroundColor=''] - The background color.
+ * 
+ * @param {string} [style.fontFamily=''] - The font family used to render text.
+ * This value can the name of a locally available font, or a CSS font stack, e.g.
+ * "Avenir", "Georgia, serif", etc...
+ * This can also be one of the following TeX-specific values:
+ * - 'cmr': Computer Modern Roman, serif
+ * - 'cmss': Computer Modern Sans-serif, latin characters only
+ * - 'cmtt': Typewriter, slab, latin characters only
+ * - 'cal': Calligraphic style, uppercase latin letters and digits only
+ * - 'frak': Fraktur, gothic, uppercase, lowercase and digits
+ * - 'bb': Blackboard bold, uppercase only
+ * - 'scr': Script style, uppercase only
+ * 
+ * @param {string} [style.series=''] - The font 'series', i.e. weight and 
+ * stretch. The following values can be combined, for example: "ebc": extra-bold,
+ * condensed. Aside from 'b', these attributes may not have visible effect if the 
+ * font family does not support this attribute:
+ * - 'ul' ultra-light weight
+ * - 'el': extra-light
+ * - 'l': light
+ * - 'sl': semi-light
+ * - 'm': medium (default)
+ * - 'sb': semi-bold
+ * - 'b': bold
+ * - 'eb': extra-bold
+ * - 'ub': ultra-bold
+ * - 'uc': ultra-condensed
+ * - 'ec': extra-condensed
+ * - 'c': condensed
+ * - 'sc': semi-condensed
+ * - 'n': normal (default)
+ * - 'sx': semi-expanded
+ * - 'x': expanded
+ * - 'ex': extra-expanded
+ * - 'ux': ultra-expanded
+ * 
+ * @param {string} [style.shape=''] - The font 'shape', i.e. italic.
+ * - 'auto': italic or upright, depending on mode and letter (single letters are
+ * italic in math mode)
+ * - 'up': upright
+ * - 'it': italic
+ * - 'sl': slanted or oblique (often the same as italic)
+ * - 'sc': small caps
+ * - 'ol': outline
+ *  
+ * @param {string} [style.size=''] - The font size:  'size1'...'size10'
+ * 'size5' is the default size
+ * */
+
+
+MathField.prototype.$applyStyle = MathField.prototype.applyStyle_ = function (style) {
+  this._resetKeystrokeBuffer();
+
+  style = validateStyle(style);
+
+  if (style.mode) {
+    // There's a mode ('text', 'math', 'command') change
+    if (this.mathlist.isCollapsed()) {
+      // Nothing selected
+      this.switchMode_(style.mode);
+    } else {
+      // Convert the selection from one mode to another
+      var previousMode = this.mode;
+      var targetMode = (this.mathlist.anchorMode() || this.config.default) === 'math' ? 'text' : 'math';
+      var convertedSelection = this.$selectedText('ASCIIMath');
+
+      if (targetMode === 'math' && /^"[^"]+"$/.test(convertedSelection)) {
+        convertedSelection = convertedSelection.slice(1, -1);
+      }
+
+      this.insert(convertedSelection, {
+        mode: targetMode,
+        selectionMode: 'item',
+        format: targetMode === 'text' ? 'text' : 'ASCIIMath'
+      });
+      this.mode = targetMode;
+
+      if (this.groupIsSelected()) {
+        // The entire group was selected. Adjust parent mode if 
+        // appropriate
+        var parent = this.mathlist.parent();
+
+        if (parent && (parent.type === 'group' || parent.type === 'root')) {
+          parent.mode = targetMode;
+        }
+      } // Notify of mode change
+
+
+      if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') {
+        this.config.onModeChange(this, this.mode);
+      }
+    }
+
+    delete style.mode;
+  }
+
+  if (this.mathlist.isCollapsed()) {
+    // No selection, let's update the 'current' style
+    if (this.style.fontSeries && style.fontSeries === this.style.fontSeries) {
+      style.fontSeries = 'auto';
+    }
+
+    if (style.fontShape && style.fontShape === this.style.fontShape) {
+      style.fontShape = 'auto';
+    }
+
+    if (style.color && style.color === this.style.color) {
+      style.color = 'none';
+    }
+
+    if (style.backgroundColor && style.backgroundColor === this.style.backgroundColor) {
+      style.backgroundColor = 'none';
+    }
+
+    if (style.fontSize && style.fontSize === this.style.fontSize) {
+      style.fontSize = 'auto';
+    }
+
+    this.style = _objectSpread({}, this.style, style); // This style will be used the next time an atom is inserted
+  } else {
+    // Change the style of the selection
+    this.mathlist._applyStyle(style);
+
+    this.undoManager.snapshot(this.config);
+  }
+
+  return true;
+};
+
+MathField.prototype.hasFocus = MathField.prototype.$hasFocus = function () {
+  return document.hasFocus() && document.activeElement === this.textarea;
+};
+
+MathField.prototype.focus = MathField.prototype.$focus = function () {
+  if (!this.hasFocus()) {
+    // The textarea may be a span (on mobile, for example), so check that
+    // it has a focus() before calling it.
+    if (this.textarea.focus) this.textarea.focus();
+
+    this._announce('line');
+  }
+};
+
+MathField.prototype.blur = MathField.prototype.$blur = function () {
+  if (this.hasFocus()) {
+    if (this.textarea.blur) {
+      this.textarea.blur();
+    }
+  }
+};
+
+MathField.prototype.select = MathField.prototype.$select = function () {
+  this.mathlist.selectAll_();
+};
+
+MathField.prototype.clearSelection = MathField.prototype.$clearSelection = function () {
+  this.mathlist.delete_();
+};
+/**
+ * @param {string} keys - A string representation of a key combination. 
+ * 
+ * For example `'Alt-KeyU'`.
+ * 
+ * See [W3C UIEvents](https://www.w3.org/TR/uievents/#code-virtual-keyboards)
+ * @param {Event} evt
+ * @return {boolean} 
+ * @method MathField#$keystroke
+ */
+
+
+MathField.prototype.keystroke = MathField.prototype.$keystroke = function (keys, evt) {
+  // This is the public API, while onKeystroke is the
+  // internal handler
+  return this._onKeystroke(keys, evt);
+};
+/**
+ * Simulate a user typing the keys indicated by text.
+ * @param {string} text - A sequence of one or more characters.
+ * @method MathField#$typedText
+ */
+
+
+MathField.prototype.typedText = MathField.prototype.$typedText = function (text) {
+  // This is the public API, while onTypedText is the
+  // internal handler
+  this._onTypedText(text);
+};
+/**
+ *
+ * @param {string} text
+ * @param {Object.<string, any>} [options={}]
+ * @param {boolean} options.focus - If true, the mathfield will be focused
+ * @param {boolean} options.feedback - If true, provide audio and haptic feedback
+ * @param {boolean} options.simulateKeystroke - If true, generate some synthetic
+ * keystrokes (useful to trigger inline shortcuts, for example)
+ */
+
+
+MathField.prototype.typedText_ = function (text, options) {
+  return this._onTypedText(text, options);
+};
+/**
+ * 
+ * Update the configuration options for this mathfield.
+ * 
+ * @param {Object<string, any>} [config={}] See {@tutorial CONFIG} for details.
+ * 
+ * @method MathField#$setConfig
+ */
+
+
+MathField.prototype.setConfig = MathField.prototype.$setConfig = function (conf) {
+  if (!this.config) {
+    this.config = {
+      smartFence: true,
+      smartSuperscript: true,
+      scriptDepth: [Infinity, Infinity],
+      removeExtraneousParentheses: true,
+      overrideDefaultInlineShortcuts: false,
+      virtualKeyboard: '',
+      virtualKeyboardLayout: 'qwerty',
+      namespace: ''
+    };
+  }
+
+  this.config = _objectSpread({}, this.config, conf);
+
+  if (!Array.isArray(this.config.scriptDepth)) {
+    var depth = parseInt(this.config.scriptDepth);
+    this.config.scriptDepth = [depth, depth];
+  }
+
+  if (typeof this.config.removeExtraneousParentheses === 'undefined') {
+    this.config.removeExtraneousParentheses = true;
+  }
+
+  this.config.onAnnounce = conf.onAnnounce || _onAnnounce;
+  this.config.macros = Object.assign({}, _definitions.default.MACROS, this.config.macros); // Validate the namespace (used for `data-` attributes)
+
+  if (!/^[a-z]*[-]?$/.test(this.config.namespace)) {
+    throw Error('options.namespace must be a string of lowercase characters only');
+  }
+
+  if (!/-$/.test(this.config.namespace)) {
+    this.config.namespace += '-';
+  } // Localization strings override (or localizations for new locales)
+
+
+  _l10n.l10n.locale = this.config.locale || _l10n.l10n.locale;
+
+  _l10n.l10n.merge(this.config.strings);
+
+  this.config.virtualKeyboardLayout = conf.virtualKeyboardLayout || {
+    'fr': 'azerty',
+    // France
+    'be': 'azerty',
+    // Belgium
+    'al': 'qwertz',
+    // Albania
+    'ba': 'qwertz',
+    // Bosnia
+    'cz': 'qwertz',
+    // Czech
+    'de': 'qwertz',
+    // Germany
+    'hu': 'qwertz',
+    // Hungary
+    'sk': 'qwertz',
+    // Slovakia
+    'ch': 'qwertz' // Switzerland
+
+  }[_l10n.l10n.locale.substring(0, 2)] || 'qwerty'; // Possible keypress sound feedback
+
+  this.keypressSound = undefined;
+  this.spacebarKeypressSound = undefined;
+  this.returnKeypressSound = undefined;
+  this.deleteKeypressSound = undefined;
+
+  if (this.config.keypressSound) {
+    if (typeof this.config.keypressSound === 'string') {
+      this.keypressSound = new Audio();
+      this.keypressSound.preload = 'none';
+      this.keypressSound.src = this.config.keypressSound;
+      this.keypressSound.volume = AUDIO_FEEDBACK_VOLUME;
+      this.spacebarKeypressSound = this.keypressSound;
+      this.returnKeypressSound = this.keypressSound;
+      this.deleteKeypressSound = this.keypressSound;
+    } else {
+      console.assert(this.config.keypressSound.default);
+      this.keypressSound = new Audio();
+      this.keypressSound.preload = 'none';
+      this.keypressSound.src = this.config.keypressSound.default;
+      this.keypressSound.volume = AUDIO_FEEDBACK_VOLUME;
+      this.spacebarKeypressSound = this.keypressSound;
+      this.returnKeypressSound = this.keypressSound;
+      this.deleteKeypressSound = this.keypressSound;
+
+      if (this.config.keypressSound.spacebar) {
+        this.spacebarKeypressSound = new Audio();
+        this.spacebarKeypressSound.preload = 'none';
+        this.spacebarKeypressSound.src = this.config.keypressSound.spacebar;
+        this.spacebarKeypressSound.volume = AUDIO_FEEDBACK_VOLUME;
+      }
+
+      if (this.config.keypressSound.return) {
+        this.returnKeypressSound = new Audio();
+        this.returnKeypressSound.preload = 'none';
+        this.returnKeypressSound.src = this.config.keypressSound.return;
+        this.returnKeypressSound.volume = AUDIO_FEEDBACK_VOLUME;
+      }
+
+      if (this.config.keypressSound.delete) {
+        this.deleteKeypressSound = new Audio();
+        this.deleteKeypressSound.preload = 'none';
+        this.deleteKeypressSound.src = this.config.keypressSound.delete;
+        this.deleteKeypressSound.volume = AUDIO_FEEDBACK_VOLUME;
+      }
+    }
+  }
+
+  if (this.config.plonkSound) {
+    this.plonkSound = new Audio();
+    this.plonkSound.preload = 'none';
+    this.plonkSound.src = this.config.plonkSound;
+    this.plonkSound.volume = AUDIO_FEEDBACK_VOLUME;
+  }
+};
+/**
+ * 
+ * Speak some part of the expression, either with or without synchronized highlighting.
+ * 
+ * @param {string} amount (all, selection, left, right, group, parent)
+ * @param {object} speakOptions 
+ * @param {boolean} speakOptions.withHighlighting - If true, synchronized highlighting of speech will happen (if possible)
+ * 
+ * @method MathField#speak_
+ */
+
+
+MathField.prototype.speak_ = function (amount, speakOptions) {
+  speakOptions = speakOptions || {
+    withHighlighting: false
+  };
+
+  function getAtoms(mathField, amount) {
+    var result = null;
+
+    switch (amount) {
+      case 'all':
+        result = mathField.mathlist.root;
+        break;
+
+      case 'selection':
+        if (!mathField.mathlist.isCollapsed()) {
+          result = mathField.mathlist.getSelectedAtoms();
+        }
+
+        break;
+
+      case 'left':
+        {
+          var siblings = mathField.mathlist.siblings();
+          var last = mathField.mathlist.startOffset();
+
+          if (last >= 1) {
+            result = [];
+
+            for (var i = 1; i <= last; i++) {
+              result.push(siblings[i]);
+            }
+          }
+
+          break;
+        }
+
+      case 'right':
+        {
+          var _siblings = mathField.mathlist.siblings();
+
+          var first = mathField.mathlist.endOffset() + 1;
+
+          if (first <= _siblings.length - 1) {
+            result = [];
+
+            for (var _i2 = first; _i2 <= _siblings.length - 1; _i2++) {
+              result.push(_siblings[_i2]);
+            }
+          }
+
+          break;
+        }
+
+      case 'start':
+      case 'end':
+        // not yet implemented
+        break;
+
+      case 'group':
+        result = mathField.mathlist.siblings();
+        break;
+
+      case 'parent':
+        {
+          var parent = mathField.mathlist.parent();
+
+          if (parent && parent.type !== 'root') {
+            result = mathField.mathlist.parent();
+          }
+
+          break;
+        }
+
+      default:
+        console.log('unknown atom type "' + mathField.type + '"');
+        break;
+    }
+
+    return result;
+  }
+
+  function getFailedSpeech(amount) {
+    var result = '';
+
+    switch (amount) {
+      case 'all':
+        console.log("Internal failure: speak all failed");
+        break;
+
+      case 'selection':
+        result = 'no selection';
+        break;
+
+      case 'left':
+        result = 'at start';
+        break;
+
+      case 'right':
+        result = 'at end';
+        break;
+
+      case 'group':
+        console.log("Internal failure: speak group failed");
+        break;
+
+      case 'parent':
+        result = 'no parent';
+        break;
+
+      default:
+        console.log('unknown speak_ param value: "' + amount + '"');
+        break;
+    }
+
+    return result;
+  }
+
+  var atoms = getAtoms(this, amount);
+
+  if (atoms === null) {
+    this.config.handleSpeak(getFailedSpeech(amount));
+    return false;
+  }
+
+  var options = this.config;
+
+  if (speakOptions.withHighlighting | options.speechEngine === 'amazon') {
+    options.textToSpeechMarkup = window.sre && options.textToSpeechRules === 'sre' ? 'ssml_step' : 'ssml';
+  }
+
+  var text = _mathAtom.default.toSpeakableText(atoms, options);
+
+  if (speakOptions.withHighlighting) {
+    window.mathlive.readAloudMathField = this;
+
+    this._render({
+      forHighlighting: true
+    });
+
+    if (this.config.handleReadAloud) {
+      this.config.handleReadAloud(this.field, text, this.config);
+    }
+  } else {
+    if (this.config.handleSpeak) {
+      this.config.handleSpeak(text, options);
+    }
+  }
+
+  return false;
+};
+
+var _default = {
+  MathField: MathField
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-mathpath.js b/dist/editor/editor-mathpath.js
new file mode 100644
index 000000000..ec9edf0bd
--- /dev/null
+++ b/dist/editor/editor-mathpath.js
@@ -0,0 +1,180 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+/**
+ * @module editor/mathpath
+ * @private
+ */
+
+/**
+ * 
+ * @memberof module:editor/mathpath
+ * @param {object} path 
+ * @param {number} extent
+ * @return {string}
+ * @private
+ */
+function pathToString(path, extent) {
+  var result = '';
+  var _iteratorNormalCompletion = true;
+  var _didIteratorError = false;
+  var _iteratorError = undefined;
+
+  try {
+    for (var _iterator = path[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      var segment = _step.value;
+      result += segment.relation + ':' + segment.offset + '/';
+    }
+  } catch (err) {
+    _didIteratorError = true;
+    _iteratorError = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion && _iterator.return != null) {
+        _iterator.return();
+      }
+    } finally {
+      if (_didIteratorError) {
+        throw _iteratorError;
+      }
+    }
+  }
+
+  if (extent) {
+    result += '#' + extent;
+  }
+
+  return result;
+}
+/**
+ * 
+ * @memberof module:editor/mathpath
+ * @param {string} string 
+ * @return {object}
+ * @private
+ */
+
+
+function pathFromString(string) {
+  // Reset the path
+  var result = {
+    path: [],
+    extent: 0
+  }; // Parse the selection extent, if present
+
+  var components = string.split('#');
+
+  if (components.length > 1) {
+    result.extent = parseInt(components[1]);
+  } // Parse the segments
+
+
+  var segments = components[0].split('/');
+  var _iteratorNormalCompletion2 = true;
+  var _didIteratorError2 = false;
+  var _iteratorError2 = undefined;
+
+  try {
+    for (var _iterator2 = segments[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+      var segment = _step2.value;
+      var m2 = segment.match(/([^:]*):(.*)/);
+
+      if (m2) {
+        result.path.push({
+          relation: m2[1],
+          offset: parseInt(m2[2])
+        });
+      }
+    }
+  } catch (err) {
+    _didIteratorError2 = true;
+    _iteratorError2 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+        _iterator2.return();
+      }
+    } finally {
+      if (_didIteratorError2) {
+        throw _iteratorError2;
+      }
+    }
+  }
+
+  return result;
+}
+/**
+ * Given two paths, return a path representing their common ancestor.
+ * 
+ * @param {Array.<string>} p 
+ * @param {Array.<string>} q 
+ * @return {Array.<string>}
+ * @memberof module:editor/mathpath
+ * @private
+ */
+
+
+function pathCommonAncestor(p, q) {
+  var result = [];
+  var maxIndex = Math.min(p.length - 1, q.length - 1);
+  var i = 0;
+
+  while (i <= maxIndex && p[i].relation === q[i].relation && p[i].offset === q[i].offset) {
+    result.push(p[i]);
+    i += 1;
+  }
+
+  return result;
+}
+/**
+ * 
+ * @param {Array.<string>} p 
+ * @param {Array.<string>} q 
+ * @return {number} 0 if the paths are identical
+ *  - 1 if they are siblings
+ *  - >1 if they are not siblings
+ * @memberof module:editor/mathpath
+ * @private
+ */
+
+
+function pathDistance(p, q) {
+  var result = 0;
+  var i = -1;
+  var done = false;
+
+  while (!done) {
+    i += 1;
+    done = i >= p.length || i >= q.length;
+    done = done || !(p[i].relation === q[i].relation && p[i].offset === q[i].offset);
+  }
+
+  if (i === p.length && i === q.length) {
+    // They're identical
+    result = 0;
+  } else if (i + 1 === p.length && i + 1 === q.length && p[i].relation === q[i].relation) {
+    // They're siblings
+    result = 1;
+  } else {
+    result = 2;
+  }
+
+  return result;
+}
+
+function clone(path) {
+  return pathFromString(pathToString(path)).path;
+}
+
+var _default = {
+  pathFromString: pathFromString,
+  pathToString: pathToString,
+  pathDistance: pathDistance,
+  pathCommonAncestor: pathCommonAncestor,
+  clone: clone
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-popover.js b/dist/editor/editor-popover.js
new file mode 100644
index 000000000..9d96ad798
--- /dev/null
+++ b/dist/editor/editor-popover.js
@@ -0,0 +1,426 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
+
+var _lexer = _interopRequireDefault(require("../core/lexer.js"));
+
+var _parser = _interopRequireDefault(require("../core/parser.js"));
+
+var _span = _interopRequireDefault(require("../core/span.js"));
+
+var _editorShortcuts = _interopRequireDefault(require("./editor-shortcuts.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var SAMPLES = {
+  '\\mathrm': '\\mathrm{x=+3.14, x\\in A}',
+  '\\mathbf': '\\mathbf{x=+3.14, x\\in A}',
+  '\\bf': '\\bf{x=+3.14, x\\in A}',
+  '\\bm': '\\bm{x=+3.14, x\\in A}',
+  '\\bold': '\\bold{x=+3.14, x\\in A}',
+  '\\mathit': '\\mathbb{x=+3.14}',
+  '\\mathbb': '\\mathbb{ABCD}',
+  '\\Bbb': '\\mathbb{ABCD}',
+  '\\frak': '\\frak{ABCD}',
+  '\\mathfrak': '\\mathfrak{ABCD}',
+  '\\mathscr': '\\mathscr{ABCD}',
+  '\\mathsf': '\\mathsf{ABab01}',
+  '\\mathtt': '\\mathtt{x=+3.14, x\\in A}',
+  '\\mathcal': '\\mathcal{ABCD}',
+  '\\boldsymbol': '\\boldsymbol{ABab01+=}',
+  '\\text': '\\text{ABC abc}',
+  '\\textrm': '\\textrm{ABC abc}',
+  '\\textnormal': '\\textnormal{ABC abc}',
+  '\\textit': '\\textit{ABC abc}',
+  '\\textbf': '\\textbf{ABC abc}',
+  '\\texttt': '\\texttt{ABC abc}',
+  '\\textsf': '\\textsf{ABC abc}',
+  '\\textcolor': "{\\textcolor{m0}A}{\\textcolor{m1}B}{\\textcolor{m2}C }{\\textcolor{m3}a}{\\textcolor{m4}b}{\\textcolor{m5}c}{\\textcolor{m6}8}",
+  '\\color': "{\\color{m0}A}{\\color{m1}B}{\\color{m2}C}{\\color{m3}a}{\\color{m4}b}{\\color{m5}c}{\\color{m6}8}",
+  "\\underline": "\\underline{\\unicode{\"2B1A}}",
+  '\\overline': "\\overline{\\unicode{\"2B1A}}",
+  '\\vec': "\\vec{\\unicode{\"25CC}}",
+  '\\check': "\\check{\\unicode{\"25CC}}",
+  '\\acute': "\\acute{\\unicode{\"25CC}}",
+  '\\breve': "\\breve{\\unicode{\"25CC}}",
+  '\\tilde': "\\tilde{\\unicode{\"25CC}}",
+  '\\hat': "\\hat{\\unicode{\"25CC}}",
+  '\\ddot': "\\ddot{\\unicode{\"25CC}}",
+  '\\dot': "\\dot{\\unicode{\"25CC}}",
+  '\\bar': "\\bar{\\unicode{\"25CC}}",
+  '\\!': "\\unicode{\"203A}\\!\\unicode{\"2039}",
+  '\\,': "\\unicode{\"203A}\\,\\unicode{\"2039}",
+  '\\:': "\\unicode{\"203A}\\:\\unicode{\"2039}",
+  '\\;': "\\unicode{\"203A}\\;\\unicode{\"2039}",
+  '\\quad': "\\unicode{\"203A}\\quad\\unicode{\"2039}",
+  '\\qquad': "\\unicode{\"203A}\\qquad\\unicode{\"2039}",
+  '\\enskip': "\\unicode{\"203A}\\enskip\\unicode{\"2039}",
+  '\\space': "\\unicode{\"203A}\\space\\unicode{\"2039}",
+  '\\frac': "\\frac{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\dfrac': "\\dfrac{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\cfrac': "\\cfrac{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\tfrac': "\\tfrac{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\dbinom': "\\dbinom{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\tbinom': "\\tbinom{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\binom': "\\binom{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\pdiff': "\\pdiff{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\in': 'n\\in\\N',
+  '\\notin': 'n\\notin\\N',
+  '\\not': 'B \\not A',
+  '\\ni': 'N\\in n',
+  '\\owns': 'N\\owns n',
+  '\\subset': 'A\\subset B',
+  '\\supset': 'B\\supset A',
+  '\\subseteq': 'A\\subseteq B',
+  '\\supseteq': 'B\\supseteq A',
+  '\\nsubseteq': 'A\\nsubseteq B',
+  '\\nsupseteq': 'B\\nsupseteq A',
+  '\\subsetneq': 'A\\subsetneq B',
+  '\\supsetneq': 'B\\supsetneq A',
+  '\\varsubsetneq': 'A\\varsubsetneq B',
+  '\\varsupsetneq': 'B\\varsupsetneq A',
+  '\\nsubseteqq': 'A\\varsupsetneq B',
+  '\\subsetneqq': 'A\\subsetneqq B',
+  '\\varsubsetneqq': 'A\\varsubsetneqq B',
+  '\\nsubset': 'A\\nsubset B',
+  '\\nsupset': 'B\\nsupset A',
+  '\\complement': 'A^\\complement',
+  '\\bigcup': "\\bigcup_{\\unicode{\"2B1A}}",
+  '\\bigcap': "\\bigcap_{\\unicode{\"2B1A}}",
+  '\\sqrt': "\\sqrt{\\unicode{\"2B1A}}",
+  '\\prod': "\\prod_{\\unicode{\"2B1A}}^{\\unicode{\"2B1A}}",
+  '\\sum': "\\sum_{\\unicode{\"2B1A}}^{\\unicode{\"2B1A}}",
+  '\\int': "\\int_{\\unicode{\"2B1A}}^{\\unicode{\"2B1A}}",
+  '\\stackrel': "\\stackrel{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\stackbin': "\\stackbin{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  "\\underset": "\\underset{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\overset': "\\overset{\\unicode{\"2B1A}}{\\unicode{\"2B1A}}",
+  '\\prime': "\\unicode{\"2B1A}^{\\prime}",
+  '\\boxed': "\\boxed{\\unicode{\"2B1A}}",
+  '\\colorbox': "\\colorbox{#fbc0bd}{\\unicode{\"2B1A}}",
+  '\\bbox': "\\bbox[#ffd400, solid 2px #ffd400]{\\unicode{\"2B1A}}",
+  '\\enclose': '\\enclose{updiagonalstrike,roundedbox}[1px solid red, mathbackground="#fbc0bd"]{23+45}',
+  '\\fcolorbox': "\\fcolorbox{#cd0030}{#ffd400}{\\unicode{\"2B1A}}",
+  '\\ ': '\\char"2423',
+  // OPEN BOX
+  '\\top': '{\\color{red}P}\\top',
+  '\\bot': '{\\color{#0F0}P}\\bot',
+  '\\mid': 'P(p\\mid q)',
+  '\\rlap': '\\rlap{x}o',
+  '\\llap': 'o\\llap{/}'
+}; // A textual description of a LaTeX command.
+// The value can be either a single string, or an array of string
+// in order to provide alternatives or additional context.
+// In that case, the first string in the array should be appropriate
+// to be spoken for accessibility.
+
+var NOTES = {
+  '\\text': 'roman text',
+  '\\textrm': 'roman text',
+  '\\textnormal': 'roman text',
+  '\\textit': 'italic text',
+  '\\textbf': 'bold text',
+  '\\texttt': 'monospaced text',
+  '\\textsf': 'sans-serif text',
+  '\\mathrm': ['roman', '(upright)'],
+  '\\mathbf': 'bold',
+  '\\bf': 'bold',
+  '\\bold': 'bold',
+  '\\mathit': 'italic',
+  '\\mathbb': 'blackboard',
+  '\\Bbb': 'blackboard',
+  '\\mathscr': 'script',
+  '\\mathtt': ['typewriter', '(monospaced)'],
+  '\\mathsf': 'sans-serif',
+  '\\mathcal': 'caligraphic',
+  '\\frak': ['fraktur', '(gothic)'],
+  '\\mathfrak': ['fraktur', '(gothic)'],
+  '\\textcolor': 'text color',
+  '\\color': 'color',
+  '\\forall': 'for all',
+  '\\exists': 'there exists',
+  '\\nexists': 'there does not exist',
+  '\\frac': 'fraction',
+  '\\dfrac': 'display fraction',
+  '\\cfrac': 'continuous fraction',
+  '\\tfrac': 'text fraction',
+  '\\binom': 'binomial coefficient',
+  '\\dbinom': 'display binomial coefficient',
+  '\\tbinom': 'text binomial coefficient',
+  '\\pdiff': 'partial differential',
+  '\\vec': 'vector',
+  '\\check': 'caron',
+  '\\acute': 'acute',
+  '\\breve': 'breve',
+  '\\tilde': 'tilde',
+  '\\dot': 'dot',
+  '\\hat': ['hat', 'circumflex'],
+  '\\ddot': 'double dot',
+  '\\bar': 'bar',
+  '\\prime': 'prime',
+  '\\doubleprime': 'double prime',
+  '\\varnothing': 'empty set',
+  '\\emptyset': 'empty set',
+  '\\subseteq': 'subset of or <br>equal to',
+  '\\supseteq': 'superset of or <br>equal to',
+  '\\supset': 'superset of',
+  '\\subset': 'subset of',
+  '\\partial': 'partial derivative',
+  '\\bigcup': 'union',
+  '\\bigcap': 'intersection',
+  '\\approx': 'approximately equal to',
+  '\\notin': 'not an element of',
+  '\\in': ['element of', 'included in'],
+  '\\infty': 'infinity',
+  '\\land': 'logical and',
+  '\\sqrt': 'square root',
+  '\\prod': 'product',
+  '\\sum': 'summation',
+  '\\amalg': ['amalgamation', 'coproduct', 'free product', 'disjoint union'],
+  '\\cup': 'union with',
+  '\\cap': 'intersection with',
+  '\\int': 'integral',
+  '\\iint': 'surface integral',
+  '\\oint': 'curve integral',
+  '\\iiint': 'volume integral',
+  '\\iff': 'if and only if',
+  '\\ln': 'natural logarithm',
+  '\\boldsymbol': 'bold',
+  '\\setminus': 'set subtraction',
+  '\\stackrel': 'relation with symbol above',
+  '\\stackbin': 'operator with symbol above',
+  "\\underset": 'symbol with annotation below',
+  '\\overset': 'symbol with annotation above',
+  '\\hslash': ['h-bar', 'Planck constant'],
+  '\\gtrsim': 'greater than or <br>similar to',
+  '\\propto': 'proportional to',
+  '\\equiv': 'equivalent to',
+  '\\!': ['negative thin space', '(-3 mu)'],
+  '\\ ': ['space', '(6 mu)'],
+  '\\,': ['thin space', '(3 mu)'],
+  '\\:': ['medium space', '(4 mu)'],
+  '\\;': ['thick space', '(5 mu)'],
+  '\\quad': ['1 em space', '(18 mu)'],
+  '\\qquad': ['2 em space', '(36 mu)'],
+  '\\enskip': ['&#189; em space', '(9 mu)'],
+  '\\mp': 'minus or plus',
+  '\\pm': 'plus or minus',
+  '\\Im': 'Imaginary part of',
+  '\\Re': 'Real part of',
+  '\\gothicCapitalR': 'Real part of',
+  '\\gothicCapitalI': 'Imaginary part part of',
+  '\\differentialD': 'differential d',
+  '\\aleph': ['aleph', 'infinite cardinal', '<a target="_blank" href="https://en.wikipedia.org/wiki/Cardinal_number">Wikipedia <big>&#x203A;</big></a>'],
+  '\\beth': ['beth', 'beth number', '<a target="_blank" href="https://en.wikipedia.org/wiki/Beth_number">Wikipedia <big>&#x203A;</big></a>'],
+  '\\gimel': ['gimel', 'gimel function', '<a target="_blank" href="https://en.wikipedia.org/wiki/Gimel_function">Wikipedia <big>&#x203A;</big></a>'],
+  '\\O': 'empty set',
+  '\\N': 'set of <br>natural numbers',
+  '\\Z': 'set of <br>integers',
+  '\\Q': 'set of <br>rational numbers',
+  '\\C': 'set of <br>complex numbers',
+  '\\R': 'set of <br>real numbers',
+  '\\P': 'set of <br>prime numbers',
+  '\\lesseqqgtr': 'less than, equal to or<br> greater than',
+  '\\gnapprox': 'greater than and <br>not approximately',
+  '\\lnapprox': 'lesser than and <br>not approximately',
+  '\\j': 'dotless j',
+  '\\i': 'dotless i',
+  '\\cdot': 'centered dot',
+  '\\lmoustache': 'left moustache',
+  '\\rmoustache': 'right moustache',
+  '\\nabla': ['nabla', 'del', 'differential vector operator'],
+  '\\square': ['square', 'd’Alembert operator', '<a target="_blank" href="https://en.wikipedia.org/wiki/D%27Alembert_operator">Wikipedia <big>&#x203A;</big></a>'],
+  '\\blacksquare': ['black square', 'end of proof', 'tombstone', 'Halmos symbol'],
+  '\\Box': 'end of proof',
+  '\\colon': ['such that', 'ratio'],
+  '\\coloneq': ['is defined by', 'is assigned'],
+  '\\Colon': ['is defined by', 'as'],
+  '\\_': ['underbar', 'underscore'],
+  '\\ll': 'much less than',
+  '\\gg': 'much greater than',
+  '\\doteq': 'approximately equal to',
+  '\\Doteq': 'approximately equal to',
+  '\\doteqdot': 'approximately equal to',
+  '\\cong': ['isomorphism of', '(for algebras, modules...)'],
+  '\\det': ['determinant of', '(of a matrix)'],
+  '\\dotplus': 'Cartesian product algebra',
+  '\\otimes': ['tensor product', '(of algebras)', 'Kronecker product', '(of matrices)'],
+  '\\oplus': ['direct sum', '(of modules)'],
+  '\\lb': 'base-2 logarithm',
+  '\\lg': 'base-10 logarithm',
+  '\\wp': ['Weierstrass P', '<a target="_blank" href="https://en.wikipedia.org/wiki/Weierstrass%27s_elliptic_functions">Wikipedia <big>&#x203A;</big></a>'],
+  '\\wr': ['wreath product', '<a target="_blank" href="https://en.wikipedia.org/wiki/Wreath_product">Wikipedia <big>&#x203A;</big></a>'],
+  '\\top': ['tautology', 'Proposition P is universally true'],
+  '\\bot': ['contradiction', 'Proposition P is contradictory'],
+  '\\mid': ['probability', 'of event A given B'],
+  '\\mho': ['Siemens', 'electrical conductance in SI unit', '<a target="_blank" href="https://en.wikipedia.org/wiki/Siemens_(unit)">Wikipedia <big>&#x203A;</big></a>'],
+  '\\Longrightarrow': 'implies',
+  '\\Longleftrightarrow': 'if, and only if,',
+  '\\prec': 'precedes',
+  '\\preceq': 'precedes or is equal to',
+  '\\succ': 'succeedes',
+  '\\succeq': 'succeedes or is equal to',
+  '\\perp': ['is perpendicular to', 'is independent of'],
+  '\\models': ['entails', 'double-turnstyle, models', 'is a semantic consequence of', '<a target="_blank" href="https://en.wikipedia.org/wiki/Double_turnstile">Wikipedia <big>&#x203A;</big></a>'],
+  '\\vdash': ['satisfies', 'turnstyle, assertion sign', 'syntactic inference', '<a target="_blank" href="https://en.wikipedia.org/wiki/Turnstile_(symbol)">Wikipedia <big>&#x203A;</big></a>'],
+  '\\implies': ['implies', 'logical consequence'],
+  '\\impliedby': ['implied by', 'logical consequence'],
+  '\\surd': ['surd', 'root of', 'checkmark'],
+  '\\ltimes': ['semi direct product', '<a target="_blank" href="https://en.wikipedia.org/wiki/Semidirect_product">Wikipedia <big>&#x203A;</big></a>'],
+  '\\rtimes': ['semi direct product', '<a target="_blank" href="https://en.wikipedia.org/wiki/Semidirect_product">Wikipedia <big>&#x203A;</big></a>'],
+  '\\leftthreetimes': ['semi direct product', '<a target="_blank" href="https://en.wikipedia.org/wiki/Semidirect_product">Wikipedia <big>&#x203A;</big></a>'],
+  '\\rightthreetimes': ['semi direct product', '<a target="_blank" href="https://en.wikipedia.org/wiki/Semidirect_product">Wikipedia <big>&#x203A;</big></a>'],
+  '\\divideontimes': ['divide on times'],
+  '\\curlywedge': 'nor',
+  '\\curlyvee': 'nand',
+  '\\simeq': 'is group isomorphic with',
+  '\\vartriangleleft': ['is a normal subgroup of', 'is an ideal ring of'],
+  '\\circ': ['circle', 'ring', 'function composition'],
+  '\\rlap': ['overlap right', '\\rlap{x}o'],
+  '\\llap': ['overlap left', 'o\\llap{/}'],
+  '\\colorbox': ['color box', '\\colorbox{#fbc0bd}{...}'],
+  '\\ast': ['asterisk', 'reflexive closure (as a superscript)'],
+  '\\bullet': 'bullet',
+  '\\lim': 'limit'
+};
+
+function getNote(symbol) {
+  var result = NOTES[symbol] || '';
+
+  if (Array.isArray(result)) {
+    result = result.join('<br>');
+  }
+
+  return result;
+}
+
+function latexToMarkup(latex, mf) {
+  var parse = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, mf.config.macros);
+
+  var spans = _mathAtom.default.decompose({
+    mathstyle: 'displaystyle',
+    macros: mf.config.macros
+  }, parse);
+
+  var base = _span.default.makeSpan(spans, 'ML__base');
+
+  var topStrut = _span.default.makeSpan('', 'ML__strut');
+
+  topStrut.setStyle('height', base.height, 'em');
+
+  var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom');
+
+  bottomStrut.setStyle('height', base.height + base.depth, 'em');
+  bottomStrut.setStyle('vertical-align', -base.depth, 'em');
+
+  var wrapper = _span.default.makeSpan([topStrut, bottomStrut, base], 'ML__mathlive');
+
+  return wrapper.toMarkup();
+}
+
+function showPopoverWithLatex(mf, latex, displayArrows) {
+  if (!latex || latex.length === 0) {
+    hidePopover(mf);
+    return;
+  }
+
+  var command = latex;
+  var command_markup = latexToMarkup(SAMPLES[command] || latex, mf);
+  var command_note = getNote(command);
+
+  var command_shortcuts = _editorShortcuts.default.forCommand(command);
+
+  var template = displayArrows ? '<div class="ML__popover__prev-shortcut" role="button" aria-label="Previous suggestion"><span><span>&#x25B2;</span></span></div>' : '';
+  template += '<span class="ML__popover__content" role="button">';
+  template += '<div class="ML__popover__command">' + command_markup + '</div>';
+
+  if (command_note) {
+    template += '<div class="ML__popover__note">' + command_note + '</div>';
+  }
+
+  if (command_shortcuts) {
+    template += '<div class="ML__popover__shortcut">' + command_shortcuts + '</div>';
+  }
+
+  template += '</span>';
+  template += displayArrows ? '<div class="ML__popover__next-shortcut" role="button" aria-label="Next suggestion"><span><span>&#x25BC;</span></span></div>' : '';
+  showPopover(mf, template);
+  var el = mf.popover.getElementsByClassName('ML__popover__content');
+
+  if (el && el.length > 0) {
+    mf._attachButtonHandlers(el[0], ['complete', {
+      acceptSuggestion: true
+    }]);
+  }
+
+  el = mf.popover.getElementsByClassName('ML__popover__prev-shortcut');
+
+  if (el && el.length > 0) {
+    mf._attachButtonHandlers(el[0], 'previousSuggestion');
+  }
+
+  el = mf.popover.getElementsByClassName('ML__popover__next-shortcut');
+
+  if (el && el.length > 0) {
+    mf._attachButtonHandlers(el[0], 'nextSuggestion');
+  }
+}
+
+function updatePopoverPosition(mf, options) {
+  // If the popover pane is visible...
+  if (mf.popover.classList.contains('is-visible')) {
+    if (options && options.deferred) {
+      // Call ourselves again later, typically after the
+      // rendering/layout of the DOM has been completed
+      window.requestAnimationFrame(function () {
+        return updatePopoverPosition(mf);
+      });
+    } else {
+      if (!mf.mathlist.anchor() || mf.mathlist.anchor().type !== 'command') {
+        hidePopover(mf);
+      } else {
+        // ... get the caret position
+        var position = mf._getCaretPosition();
+
+        if (position) {
+          // and position the popover right below the caret
+          mf.popover.style.left = position.x - mf.popover.offsetWidth / 2 + 'px';
+          mf.popover.style.top = position.y + 5 + 'px';
+        }
+      }
+    }
+  }
+}
+
+function showPopover(mf, markup) {
+  mf.popover.innerHTML = markup;
+
+  var position = mf._getCaretPosition();
+
+  if (position) {
+    mf.popover.style.left = position.x - mf.popover.offsetWidth / 2 + 'px';
+    mf.popover.style.top = position.y + 5 + 'px';
+  }
+
+  mf.popover.classList.add('is-visible');
+}
+
+function hidePopover(mf) {
+  mf.popover.classList.remove('is-visible');
+}
+
+var _default = {
+  getNote: getNote,
+  SAMPLES: SAMPLES,
+  NOTES: NOTES,
+  showPopoverWithLatex: showPopoverWithLatex,
+  showPopover: showPopover,
+  hidePopover: hidePopover,
+  updatePopoverPosition: updatePopoverPosition
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-shortcuts.js b/dist/editor/editor-shortcuts.js
new file mode 100644
index 000000000..3fdfffa2c
--- /dev/null
+++ b/dist/editor/editor-shortcuts.js
@@ -0,0 +1,1210 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _definitions = _interopRequireDefault(require("../core/definitions.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @module editor/shortcuts
+ * @private
+ */
+
+/**
+ * The index of this array is a keystroke combination as returned by the key
+ * field of a JavaScript keyboard event as documented here:
+ * https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key/Key_Values
+ * except for:
+ * - `Escape`         → `Esc`
+ * - `LeftArrow`...   → `Left/Right/Up/Down`
+ * - `Delete`         → `Del`
+ * - `Escape`         → `Esc`
+ * - ' '              → `Spacebar`
+ * 
+ * The modifiers are specified before the main key, in the following order:
+ * 1. `Ctrl`
+ * 2. `Meta`: Command key on Mac OS. On Windows this is the Windows key,
+ * but the system intercepts those key combinations so they are never received
+ * 3. `Alt`: Option key on Mac OS
+ * 4. `Shift`
+ * 
+ * The keys can be preceded by a context to restrict when the shortcut is 
+ * applicable. For example, "math:Ctrl-KeyA" will restrict this shortcut
+ * to only apply in the "math" context (parseMode). Other valid context include
+ * "text" and "command".
+ * 
+ * The value of the entries represent the command to perform. 
+ * This can be either a single selector, or an array of a selector followed
+ * by its arguments.
+ * Selectors uses the following naming conventions:
+ * - a 'char' is a math atom (a letter, digit, symbol or compound atom)
+ * - a 'word' is a sequence of math atoms of the same type
+ * - a 'group' is a sequence of sibling atoms, for example a numerator or 
+ * a superscript
+ * - the 'MathField' is the entire expression being edited
+ * - a 'placeholder' is either an actual placeholder atom or an empty child 
+ * list, for example an empty numerator
+ * - 'move' changes the position of the insertion point (and collapses the 
+ * selection range if necessary)
+ * - 'extend' keeps the anchor of the  selection, but moves the focus (extends,
+ * or shrinks, the range of selected items)
+ * 
+ * @memberof module:editor/shortcuts
+ * @type {Object<string,string>}
+ */
+var KEYBOARD_SHORTCUTS = {
+  'Left': 'moveToPreviousChar',
+  'Right': 'moveToNextChar',
+  'Up': 'moveUp',
+  'Down': 'moveDown',
+  'Shift-Left': 'extendToPreviousChar',
+  'Shift-Right': 'extendToNextChar',
+  'Shift-Up': 'extendUp',
+  'Shift-Down': 'extendDown',
+  'Backspace': 'deletePreviousChar',
+  'Alt-Del': 'deletePreviousChar',
+  'Del': 'deleteNextChar',
+  'Alt-Backspace': 'deleteNextChar',
+  'Alt-Left': 'moveToPreviousWord',
+  'Alt-Right': 'moveToNextWord',
+  'Alt-Shift-Left': 'extendToPreviousWord',
+  'Alt-Shift-Right': 'extendToNextWord',
+  'Ctrl-Left': 'moveToGroupStart',
+  'Ctrl-Right': 'moveToGroupEnd',
+  'Ctrl-Shift-Left': 'extendToGroupStart',
+  'Ctrl-Shift-Right': 'extendToGroupEnd',
+  'math:Spacebar': 'moveAfterParent',
+  'math:Shift-Spacebar': 'moveBeforeParent',
+  'Home': 'moveToMathFieldStart',
+  'mac:Meta-Left': 'moveToMathFieldStart',
+  'Shift-Home': 'extendToMathFieldStart',
+  'mac:Meta-Shift-Left': 'extendToMathFieldStart',
+  'End': 'moveToMathFieldEnd',
+  'mac:Meta-Right': 'moveToMathFieldEnd',
+  'Shift-End': 'extendToMathFieldEnd',
+  'mac:Meta-Shift-Right': 'extendToMathFieldEnd',
+  'PageUp': 'moveToGroupStart',
+  'PageDown': 'moveToGroupEnd',
+  'math:Tab': 'moveToNextPlaceholder',
+  'math:F8': 'moveToNextPlaceholder',
+  // Visual Studio
+  'math:Shift-Tab': 'moveToPreviousPlaceholder',
+  'math:Shift-F8': 'moveToPreviousPlaceholder',
+  // Visual Studio
+  'text:Tab': 'moveToNextPlaceholder',
+  'text:F8': 'moveToNextPlaceholder',
+  // Visual Studio
+  'text:Shift-Tab': 'moveToPreviousPlaceholder',
+  'text:Shift-F8': 'moveToPreviousPlaceholder',
+  // Visual Studio
+  'math:Esc': ['switch-mode', 'command'],
+  'math:Backslash': ['switch-mode', 'command'],
+  'math:IntlBackslash': ['switch-mode', 'command'],
+  'math:Alt-Equal': ['apply-style', {
+    mode: 'text'
+  }],
+  'text:Alt-Equal': ['apply-style', {
+    mode: 'math'
+  }],
+  'command:Esc': ['complete', {
+    discard: true
+  }],
+  // discard the command, insert nothing
+  'command:Tab': ['complete', {
+    acceptSuggestion: true
+  }],
+  // complete the suggestion
+  'command:Return': 'complete',
+  'command:Enter': 'complete',
+  'command:Shift-Esc': ['complete', {
+    discard: true
+  }],
+  // Some keyboards can't generate 
+  // this combination, for example in 60% keyboards it is mapped to ~
+  'command:Down': 'nextSuggestion',
+  'ios:command:Tab': 'nextSuggestion',
+  'command:Up': 'previousSuggestion',
+  '!mac:Ctrl-KeyA': 'selectAll',
+  'mac:Meta-KeyA': 'selectAll',
+  // Rare keys on some extended keyboards
+  'Cut': 'cut',
+  'Copy': 'copy',
+  'Paste': 'paste',
+  'Clear': 'delete',
+  '!mac:Ctrl-KeyZ': 'undo',
+  'mac:Meta-KeyZ': 'undo',
+  'Undo': 'undo',
+  '!mac:Ctrl-KeyY': 'redo',
+  // ARIA recommendation
+  'mac:Meta-Shift-KeyY': 'redo',
+  '!mac:Ctrl-Shift-KeyZ': 'redo',
+  'mac:Meta-Shift-KeyZ': 'redo',
+  'Redo': 'redo',
+  'EraseEof': 'deleteToGroupEnd',
+  // EMACS/MACOS BINDINGS
+  'mac:Ctrl-KeyB': 'moveToPreviousChar',
+  'mac:Ctrl-KeyF': 'moveToNextChar',
+  'mac:Ctrl-KeyP': 'moveUp',
+  'mac:Ctrl-KeyN': 'moveDown',
+  'mac:Ctrl-KeyA': 'moveToMathFieldStart',
+  'mac:Ctrl-KeyE': 'moveToMathFieldEnd',
+  'mac:Ctrl-Shift-KeyB': 'extendToPreviousChar',
+  'mac:Ctrl-Shift-KeyF': 'extendToNextChar',
+  'mac:Ctrl-Shift-KeyP': 'extendUp',
+  'mac:Ctrl-Shift-KeyN': 'extendDown',
+  'mac:Ctrl-Shift-KeyA': 'extendToMathFieldStart',
+  'mac:Ctrl-Shift-KeyE': 'extendToMathFieldEnd',
+  'mac:Ctrl-Alt-KeyB': 'moveToPreviousWord',
+  'mac:Ctrl-Alt-KeyF': 'moveToNextWord',
+  'mac:Ctrl-Shift-Alt-KeyB': 'extendToPreviousWord',
+  'mac:Ctrl-Shift-Alt-KeyF': 'extendToNextWord',
+  'mac:Ctrl-KeyH': 'deletePreviousChar',
+  'mac:Ctrl-KeyD': 'deleteNextChar',
+  'mac:Ctrl-KeyL': 'scrollIntoView',
+  'mac:Ctrl-KeyT': 'transpose',
+  'math:Shift-Quote': ['switch-mode', 'text', '', '“'],
+  'text:Shift-Quote': ['switch-mode', 'math', '”', ''],
+  // WOLFRAM MATHEMATICA BINDINGS
+  'math:Ctrl-Digit2': ['insert', '\\sqrt{#0}'],
+  'math:Ctrl-Digit5': 'moveToOpposite',
+  'math:Ctrl-Digit6': 'moveToSuperscript',
+  'math:Ctrl-Minus': 'moveToSubscript',
+  'math:Alt-BracketLeft': ['insert', '\\left\\lbrack #0 \\right\\rbrack'],
+  'math:Alt-Shift-BracketLeft': ['insert', '\\left\\lbrace #0 \\right\\rbrace'],
+  'math:Return': 'addRowAfter',
+  'math:Enter': 'addRowAfter',
+  'math:Ctrl-Comma': 'addColumnAfter',
+  // Excel shortcuts:
+  // Shift-space: select entire row, ctrl+space: select an entire column
+  // ctrl+shift++ or ctrl+numpad+
+  // ctrl+- to delete a row or columns
+  // MATHLIVE BINDINGS
+  'math:Alt-KeyQ': ['insert', '\\theta'],
+  'math:Alt-KeyP': ['insert', '\\pi'],
+  'math:Alt-KeyV': ['insert', '\\sqrt{#0}'],
+  'math:Alt-KeyW': ['insert', '\\sum_{i=#?}^{#?}'],
+  'math:Alt-KeyB': ['insert', '\\int_{#?}^{#?}'],
+  'math:Alt-KeyU': ['insert', '\\cup'],
+  'math:Alt-KeyN': ['insert', '\\cap'],
+  'math:Alt-KeyO': ['insert', '\\emptyset'],
+  'math:Alt-KeyD': ['insert', '\\differentialD'],
+  'math:Alt-Shift-KeyO': ['insert', '\\varnothing'],
+  'math:Alt-Shift-KeyD': ['insert', '\\partial'],
+  'math:Alt-Shift-KeyP': ['insert', '\\prod_{i=#?}^{#?}'],
+  'math:Alt-Shift-KeyU': ['insert', '\\bigcup'],
+  'math:Alt-Shift-KeyN': ['insert', '\\bigcap'],
+  'math:Alt-Shift-KeyA': ['insert', '\\forall'],
+  'math:Alt-Shift-KeyE': ['insert', '\\exists'],
+  'math:Alt-Digit5': ['insert', '\\infty'],
+  // "%" key
+  'math:Alt-Digit6': ['insert', '\\wedge'],
+  // "^" key
+  'math:Alt-Shift-Digit6': ['insert', '\\vee'],
+  // "^" key
+  'math:Alt-Digit9': ['insert', '('],
+  // "(" key, override smartFence
+  'math:Alt-Digit0': ['insert', ')'],
+  // ")" key, override smartFence
+  'math:Alt-Shift-Backslash': ['insert', '|'],
+  // "|" key, override smartFence
+  'math:Alt-Backslash': ['insert', '\\backslash'],
+  // "|" key, override command mode
+  'math:Slash': ['insert', '\\frac{#@}{#?}'],
+  'math:Alt-Slash': ['insert', '\\frac{#?}{#@}'],
+  'math:NumpadDivide': ['insert', '\\frac{#@}{#?}'],
+  'math:Alt-NumpadDivide': ['insert', '\\frac{#?}{#@}'],
+  'math:Shift-Backquote': ['insert', '\\~'],
+  'math:Alt-Shift-Slash': ['insert', '\\/'],
+  // Accessibility
+  'Alt-Shift-KeyK': 'toggleKeystrokeCaption',
+  'Alt-Space': 'toggleVirtualKeyboard',
+  // Note: On Mac OS (as of 10.12), there is a bug/behavior that causes
+  // a beep to be generated with certain command+control key combinations.
+  // The workaround is to create a default binding file to silence them.
+  // In ~/Library/KeyBindings/DefaultKeyBinding.dict add these entries:
+
+  /*
+  {
+     "^@\UF701" = "noop:";
+     "^@\UF702" = "noop:";
+     "^@\UF703" = "noop:";
+  }
+  */
+  'mac:Ctrl-Meta-Up': ['speak', 'parent', {
+    withHighlighting: false
+  }],
+  '!mac:Ctrl-Alt-Up': ['speak', 'parent', {
+    withHighlighting: false
+  }],
+  'mac:Ctrl-Meta-Down': ['speak', 'group', {
+    withHighlighting: false
+  }],
+  '!mac:Ctrl-Alt-Down': ['speak', 'group', {
+    withHighlighting: false
+  }],
+  'mac:Ctrl-Meta-Left': ['speak', 'left', {
+    withHighlighting: false
+  }],
+  '!mac:Ctrl-Alt-Left': ['speak', 'left', {
+    withHighlighting: false
+  }],
+  'mac:Ctrl-Meta-Right': ['speak', 'right', {
+    withHighlighting: false
+  }],
+  '!mac:Ctrl-Alt-Right': ['speak', 'right', {
+    withHighlighting: false
+  }],
+  '!mac:Ctrl-Alt-Period': ['speak', 'selection', {
+    withHighlighting: false
+  }],
+  'mac:Ctrl-Meta-Period': ['speak', 'selection', {
+    withHighlighting: false
+  }],
+  'mac:Ctrl-Meta-Shift-Up': ['speak', 'parent', {
+    withHighlighting: true
+  }],
+  '!mac:Ctrl-Alt-Shift-Up': ['speak', 'parent', {
+    withHighlighting: true
+  }],
+  'mac:Ctrl-Meta-Shift-Down': ['speak', 'group', {
+    withHighlighting: true
+  }],
+  '!mac:Ctrl-Alt-Shift-Down': ['speak', 'group', {
+    withHighlighting: true
+  }],
+  'mac:Ctrl-Meta-Shift-Left': ['speak', 'left', {
+    withHighlighting: true
+  }],
+  '!mac:Ctrl-Alt-Shift-Left': ['speak', 'left', {
+    withHighlighting: true
+  }],
+  'mac:Ctrl-Meta-Shift-Right': ['speak', 'right', {
+    withHighlighting: true
+  }],
+  '!mac:Ctrl-Alt-Shift-Right': ['speak', 'right', {
+    withHighlighting: true
+  }],
+  '!mac:Ctrl-Alt-Shift-Period': ['speak', 'selection', {
+    withHighlighting: true
+  }],
+  'mac:Ctrl-Meta-Shift-Period': ['speak', 'selection', {
+    withHighlighting: true
+  }] // '!mac:Ctrl-Alt-Shift-Home': ['speak', 'start', {withHighlighting: true}],
+  // 'mac:Ctrl-Alt-Shift-Home':  ['speak', 'start', {withHighlighting: true}],
+  // '!mac:Ctrl-Alt-Shift-End':  ['speak', 'end', {withHighlighting: true}],
+  // 'mac:Ctrl-Alt-Shift-End':   ['speak', 'end', {withHighlighting: true}],
+
+  /**
+   * Most commands can be associated to their keyboard shortcuts from the 
+   * KEYBOARD_SHORTCUTS table above, for example 'speakSelection' -> 'Ctrl-KeyR'
+   * However, those that contain complex commands are more ambiguous.
+   * For example, '\sqrt' -> 'math:Alt-KeyV'. This table provides the reverse
+   * mapping for those more complex commands. It is used when displaying 
+   * keyboard shortcuts for specific commands in the popover.
+   * @memberof module:editor/shortcuts
+   * @type {Object<string,string>}
+   */
+
+};
+var REVERSE_KEYBOARD_SHORTCUTS = {
+  '\\theta': 'Alt-KeyQ',
+  '\\sqrt': ['Alt-KeyV', 'Ctrl-Digit2'],
+  '\\pi': 'Alt-KeyP',
+  '\\prod': 'Alt-Shift-KeyP',
+  '\\sum': 'Alt-KeyW',
+  '\\int': 'Alt-KeyB',
+  '\\cup': 'Alt-KeyU',
+  '\\cap': 'Alt-KeyN',
+  '\\bigcup': 'Alt-Shift-KeyU',
+  '\\bigcap': 'Alt-Shift-KeyN',
+  '\\forall': 'Alt-Shift-KeyA',
+  '\\exists': 'Alt-Shift-KeyE',
+  '\\infty': 'Alt-Digit5',
+  '\\wedge': 'Alt-Digit5',
+  '\\vee': 'Alt-Shift-Digit6',
+  '\\differentialD': 'Alt-keyD',
+  '\\partial': 'Alt-Shift-KeyD',
+  '\\frac': 'Slash',
+  '\\emptyset': 'Alt-KeyO',
+  '\\varnothing': 'Alt-Shift-KeyO',
+  '\\~': '~'
+  /**
+   * These shortcut strings are replaced with the corresponding LaTeX expression
+   * without requiring an escape sequence or command.
+   * 
+   * @type {Object.<string,string>}
+   * @memberof module:editor/shortcuts
+   */
+
+};
+var INLINE_SHORTCUTS = {
+  // Primes
+  "''": {
+    mode: 'math',
+    value: '^{\\doubleprime}'
+  },
+  // Greek letters
+  'alpha': '\\alpha',
+  'delta': '\\delta',
+  'Delta': '\\Delta',
+  'pi': {
+    mode: 'math',
+    value: '\\pi'
+  },
+  'pi ': {
+    mode: 'text',
+    value: '\\pi '
+  },
+  'π': '\\pi',
+  'Pi': '\\Pi',
+  'theta': '\\theta',
+  'Theta': '\\Theta',
+  // Letter-like
+  'ii': {
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\imaginaryI'
+  },
+  'jj': {
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\imaginaryJ'
+  },
+  'ee': {
+    mode: 'math',
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\exponentialE'
+  },
+  'nabla': {
+    mode: 'math',
+    value: '\\nabla'
+  },
+  'grad': {
+    mode: 'math',
+    value: '\\nabla'
+  },
+  'del': {
+    mode: 'math',
+    value: '\\partial'
+  },
+  "\u221E": '\\infty',
+  // @TODO: doesn't work
+  // '&infin;': '\\infty',
+  // '&#8734;': '\\infty',
+  'oo': {
+    mode: 'math',
+    after: 'nothing+digit+frac+surd+binop+relop+punct+array+openfence+closefence+space',
+    value: '\\infty'
+  },
+  // Big operators
+  '∑': {
+    mode: 'math',
+    value: '\\sum'
+  },
+  'sum': {
+    mode: 'math',
+    value: '\\sum_{#?}^{#?}'
+  },
+  'prod': {
+    mode: 'math',
+    value: '\\prod_{#?}^{#?}'
+  },
+  'sqrt': {
+    mode: 'math',
+    value: '\\sqrt'
+  },
+  // '∫':                    '\\int',             // There's a alt-B command for this
+  '∆': {
+    mode: 'math',
+    value: '\\differentialD'
+  },
+  // @TODO: is \\diffD most common?
+  '∂': {
+    mode: 'math',
+    value: '\\differentialD'
+  },
+  // Functions
+  'sin': {
+    mode: 'math',
+    value: '\\sin'
+  },
+  'cos': {
+    mode: 'math',
+    value: '\\cos'
+  },
+  'tan': {
+    mode: 'math',
+    value: '\\tan'
+  },
+  'tanh': {
+    mode: 'math',
+    value: '\\tanh'
+  },
+  'log': {
+    mode: 'math',
+    value: '\\log'
+  },
+  'ln': {
+    mode: 'math',
+    value: '\\ln'
+  },
+  'exp': {
+    mode: 'math',
+    value: '\\exp'
+  },
+  'lim': {
+    mode: 'math',
+    value: '\\lim_{#?}'
+  },
+  // Differentials
+  // According to ISO31/XI (ISO 80000-2), differentials should be upright
+  'dx': '\\differentialD x',
+  'dy': '\\differentialD y',
+  'dt': '\\differentialD t',
+  // Logic
+  'AA': {
+    mode: 'math',
+    value: '\\forall'
+  },
+  'EE': {
+    mode: 'math',
+    value: '\\exists'
+  },
+  '!EE': {
+    mode: 'math',
+    value: '\\nexists'
+  },
+  '&&': {
+    mode: 'math',
+    value: '\\land'
+  },
+  // The shortcut for the greek letter "xi" is interfering with "x in"
+  'xin': {
+    mode: 'math',
+    after: 'nothing+text+relop+punct+openfence+space',
+    value: 'x \\in'
+  },
+  'in': {
+    mode: 'math',
+    after: 'nothing+letter+closefence',
+    value: '\\in'
+  },
+  '!in': {
+    mode: 'math',
+    value: '\\notin'
+  },
+  // Sets
+  'NN': '\\N',
+  // Natural numbers
+  'ZZ': '\\Z',
+  // Integers
+  'QQ': '\\Q',
+  // Rational numbers
+  'RR': '\\R',
+  // Real numbers
+  'CC': '\\C',
+  // Complex numbers
+  'PP': '\\P',
+  // Prime numbers
+  // Operators
+  'xx': '\\times',
+  '+-': '\\pm',
+  // Relational operators
+  '!=': '\\ne',
+  '>=': '\\ge',
+  '<=': '\\le',
+  '<<': '\\ll',
+  '>>': '\\gg',
+  '~~': '\\approx',
+  // More operators
+  '≈': '\\approx',
+  '?=': '\\questeq',
+  '÷': '\\div',
+  '¬': '\\neg',
+  ':=': '\\coloneq',
+  '::': '\\Colon',
+  // Fences
+  '(:': '\\langle',
+  ':)': '\\rangle',
+  // More Greek letters
+  'beta': '\\beta',
+  'chi': '\\chi',
+  'epsilon': '\\epsilon',
+  'varepsilon': '\\varepsilon',
+  'eta': {
+    mode: 'math',
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\eta'
+  },
+  'eta ': {
+    mode: 'text',
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\eta '
+  },
+  'gamma': '\\gamma',
+  'Gamma': '\\Gamma',
+  'iota': '\\iota',
+  'kappa': '\\kappa',
+  'lambda': '\\lambda',
+  'Lambda': '\\Lambda',
+  'mu': {
+    mode: 'math',
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\mu'
+  },
+  'mu ': {
+    mode: 'text',
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\mu '
+  },
+  'nu': {
+    mode: 'math',
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\nu'
+  },
+  'nu ': {
+    mode: 'text',
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\nu '
+  },
+  'µ': '\\mu',
+  // @TODO: or micro?
+  'phi': {
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\phi'
+  },
+  'Phi': {
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\Phi'
+  },
+  'varphi': '\\varphi',
+  'psi': {
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\psi'
+  },
+  'Psi': {
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\Psi'
+  },
+  'rho': {
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\rho'
+  },
+  'sigma': '\\sigma',
+  'Sigma': '\\Sigma',
+  'tau': {
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\tau'
+  },
+  'vartheta': '\\vartheta',
+  'upsilon': "\\upsilon",
+  'xi': {
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\xi'
+  },
+  'Xi': {
+    after: 'nothing+digit+function+frac+surd+binop+relop+punct+array+openfence+closefence+space+text',
+    value: '\\Xi'
+  },
+  'zeta': '\\zeta',
+  'omega': '\\omega',
+  'Omega': '\\Omega',
+  'Ω': '\\omega',
+  // @TODO: or ohm?
+  // More Logic
+  'forall': '\\forall',
+  'exists': {
+    mode: 'math',
+    value: '\\exists'
+  },
+  '!exists': {
+    mode: 'math',
+    value: '\\nexists'
+  },
+  ':.': {
+    mode: 'math',
+    value: '\\therefore'
+  },
+  // MORE FUNCTIONS
+  // 'arg': '\\arg',
+  'liminf': '\\operatorname*{lim~inf}_{#?}',
+  'limsup': '\\operatorname*{lim~sup}_{#?}',
+  'argmin': '\\operatorname*{arg~min}_{#?}',
+  'argmax': '\\operatorname*{arg~max}_{#?}',
+  'det': '\\det',
+  'mod': {
+    mode: 'math',
+    value: '\\mod'
+  },
+  'max': {
+    mode: 'math',
+    value: '\\max'
+  },
+  'min': {
+    mode: 'math',
+    value: '\\min'
+  },
+  'erf': '\\operatorname{erf}',
+  'erfc': '\\operatorname{erfc}',
+  'bessel': {
+    mode: 'math',
+    value: '\\operatorname{bessel}'
+  },
+  'mean': {
+    mode: 'math',
+    value: '\\operatorname{mean}'
+  },
+  'median': {
+    mode: 'math',
+    value: '\\operatorname{median}'
+  },
+  'fft': {
+    mode: 'math',
+    value: '\\operatorname{fft}'
+  },
+  'lcm': {
+    mode: 'math',
+    value: '\\operatorname{lcm}'
+  },
+  'gcd': {
+    mode: 'math',
+    value: '\\operatorname{gcd}'
+  },
+  'randomReal': '\\operatorname{randomReal}',
+  'randomInteger': '\\operatorname{randomInteger}',
+  'Re': {
+    mode: 'math',
+    value: '\\operatorname{Re}'
+  },
+  'Im': {
+    mode: 'math',
+    value: '\\operatorname{Im}'
+  },
+  // UNITS
+  'mm': {
+    mode: 'math',
+    after: 'nothing+digit',
+    value: '\\operatorname{mm}' // millimeter
+
+  },
+  'cm': {
+    mode: 'math',
+    after: 'nothing+digit',
+    value: '\\operatorname{cm}' // centimeter
+
+  },
+  'km': {
+    mode: 'math',
+    after: 'nothing+digit',
+    value: '\\operatorname{km}' // kilometer
+
+  },
+  'kg': {
+    mode: 'math',
+    after: 'nothing+digit',
+    value: '\\operatorname{kg}' // kilogram
+
+  },
+  // '||':                   '\\lor',
+  '...': '\\ldots',
+  // In general, use \ldots
+  '+...': '+\\cdots',
+  // ... but use \cdots after + ...
+  '-...': '-\\cdots',
+  // ... - and ...
+  '->...': '\\to\\cdots',
+  // ->
+  '->': '\\to',
+  '|->': '\\mapsto',
+  '-->': '\\longrightarrow',
+  //    '<-':                   '\\leftarrow',
+  '<--': '\\longleftarrow',
+  '=>': '\\Rightarrow',
+  '==>': '\\Longrightarrow',
+  // '<=': '\\Leftarrow',     // CONFLICTS WITH LESS THAN OR EQUAL
+  '<=>': '\\Leftrightarrow',
+  '<->': '\\leftrightarrow',
+  '(.)': '\\odot',
+  '(+)': '\\oplus',
+  '(/)': '\\oslash',
+  '(*)': '\\otimes',
+  '(-)': '\\ominus',
+  // '(-)':                  '\\circleddash',
+  '||': '\\Vert',
+  '{': '\\{',
+  '}': '\\}',
+  '*': '\\cdot'
+  /*
+      //
+      // ASCIIIMath
+      //
+      // Binary operation symbols
+      '**':                   '\\ast',
+      '***':                  '\\star',
+      '//':                   '\\slash',
+      '\\\\':                 '\\backslash',
+      'setminus':             '\\backslash',
+      '|><':                  '\\ltimes',
+      '><|':                  '\\rtimes',
+      '|><|':                 '\\bowtie',
+      '-:':                   '\\div',
+      'divide':               '\\div',
+      '@':                    '\\circ',
+      'o+':                   '\\oplus',
+      'ox':                   '\\otimes',
+      'o.':                   '\\odot',
+      '^^':                   '\\wedge',
+      '^^^':                  '\\bigwedge',
+      'vv':                   '\\vee',
+      'vvv':                  '\\bigvee',
+      'nn':                   '\\cap',
+      'nnn':                  '\\bigcap',
+      'uu':                   '\\cup',
+      'uuu':                  '\\bigcup',
+  
+      // Binary relation symbols
+      '-=':                   '\\equiv',
+      '~=':                   '\\cong',
+      'lt':                   '<',
+      'lt=':                  '\\leq',
+      'gt':                   '>',
+      'gt=':                  '\\geq',
+      '-<':                   '\\prec',
+      '-lt':                  '\\prec',
+      '-<=':                  '\\preceq',
+      // '>-':                   '\\succ',
+      '>-=':                  '\\succeq', 
+      'prop':                 '\\propto', 
+      'diamond':              '\\diamond',
+      'square':               '\\square',
+      'iff':                  '\\iff',
+  
+      'sub':                  '\\subset',
+      'sup':                  '\\supset',
+      'sube':                 '\\subseteq',
+      'supe':                 '\\supseteq',
+      'uarr':                 '\\uparrow',
+      'darr':                 '\\downarrow',
+      'rarr':                 '\\rightarrow',
+      'rArr':                 '\\Rightarrow',
+      'larr':                 '\\leftarrow',
+      'lArr':                 '\\Leftarrow',
+      'harr':                 '\\leftrightarrow',
+      'hArr':                 '\\Leftrightarrow',
+      'aleph':                '\\aleph',
+  
+      // Logic
+      'and':                  '\\land',
+      'or':                   '\\lor',
+      'not':                  '\\neg',
+      '_|_':                   '\\bot',
+      'TT':                   '\\top',
+      '|--':                  '\\vdash',
+      '|==':                  '\\models',
+      
+      // Other functions
+      '|__':                  '\\lfloor',
+      '__|':                  '\\rfloor',
+  
+      '|~':                   '\\lceil',
+      '~|':                   '\\rceil',
+  
+      // Arrows
+      '>->':                   '\\rightarrowtail',
+      '->>':                   '\\twoheadrightarrow',
+      '>->>':                  '\\twoheadrightarrowtail'
+  */
+
+};
+/**
+ * Return an array of potential shortcuts
+ * @param {string} s 
+ * @param {object} config 
+ * @return {string[]}
+ */
+
+function startsWithString(s, config) {
+  var result = [];
+
+  var _loop = function _loop(i) {
+    var s2 = s.substring(i);
+    var skipDefaultShortcuts = config && config.overrideDefaultInlineShortcuts;
+
+    if (!skipDefaultShortcuts) {
+      Object.keys(INLINE_SHORTCUTS).forEach(function (key) {
+        if (key.startsWith(s2) && !result.includes(key)) {
+          result.push(key);
+        }
+      });
+    }
+
+    var customInlineShortcuts = config && config.inlineShortcuts ? config.inlineShortcuts : null;
+
+    if (customInlineShortcuts) {
+      Object.keys(customInlineShortcuts).forEach(function (key) {
+        if (key.startsWith(s2)) {
+          result.push(key);
+        }
+      });
+    }
+  };
+
+  for (var i = 0; i <= s.length - 1; i++) {
+    _loop(i);
+  }
+
+  return result;
+}
+/**
+ * 
+ * @param {string} mode
+ * @param {object[]} siblings atoms preceding this potential shortcut
+ * @param {string} shortcut 
+ */
+
+
+function validateShortcut(mode, siblings, shortcut) {
+  if (!shortcut) return shortcut; // If it's a simple shortcut (no conditional), it's valid
+
+  if (typeof shortcut === 'string') return shortcut;
+  if (typeof shortcut.mode === 'string' && shortcut.mode !== mode) return null; // If we have no context, we assume all the shortcuts are valid
+
+  if (!siblings) return shortcut ? shortcut.value : undefined;
+  var nothing = false;
+  var letter = false;
+  var digit = false;
+  var isFunction = false;
+  var frac = false;
+  var surd = false;
+  var binop = false;
+  var relop = false;
+  var punct = false;
+  var array = false;
+  var openfence = false;
+  var closefence = false;
+  var text = false;
+  var space = false;
+  var sibling = siblings[siblings.length - 1];
+  var index = siblings.length - 1;
+
+  while (sibling && /msubsup|placeholder/.test(sibling.type)) {
+    index -= 1;
+    sibling = siblings[index];
+  }
+
+  nothing = !sibling || sibling.type === 'first'; // start of a group
+
+  if (sibling) {
+    text = sibling.mode === 'text';
+    letter = !text && sibling.type === 'mord' && _definitions.default.LETTER.test(sibling.body);
+    digit = !text && sibling.type === 'mord' && /[0-9]+$/.test(sibling.body);
+    isFunction = !text && sibling.isFunction;
+    frac = sibling.type === 'genfrac';
+    surd = sibling.type === 'surd';
+    binop = sibling.type === 'mbin';
+    relop = sibling.type === 'mrel';
+    punct = sibling.type === 'mpunct' || sibling.type === 'minner';
+    array = sibling.array;
+    openfence = sibling.type === 'mopen';
+    closefence = sibling.type === 'mclose' || sibling.type === 'leftright';
+    space = sibling.type === 'space';
+  }
+
+  if (typeof shortcut.after !== 'undefined') {
+    // If this is a conditional shortcut, consider the conditions now
+    if (/nothing/.test(shortcut.after) && nothing || /letter/.test(shortcut.after) && letter || /digit/.test(shortcut.after) && digit || /function/.test(shortcut.after) && isFunction || /frac/.test(shortcut.after) && frac || /surd/.test(shortcut.after) && surd || /binop/.test(shortcut.after) && binop || /relop/.test(shortcut.after) && relop || /punct/.test(shortcut.after) && punct || /array/.test(shortcut.after) && array || /openfence/.test(shortcut.after) && openfence || /closefence/.test(shortcut.after) && closefence || /text/.test(shortcut.after) && text || /space/.test(shortcut.after) && space) {
+      return shortcut.value;
+    }
+
+    return null;
+  }
+
+  return shortcut.value;
+}
+/**
+ * This function is used to resolve inline shortcuts.
+ * 
+ * @param {string} mode
+ * @param {string} context - atoms preceding the candidate, potentially used
+ * to reduce which shortcuts are applicable. If 'null', no restrictions are 
+ * applied.
+ * @param {string} s - candidate inline shortcuts (e.g. `'pi'`)
+ * @param {object} config 
+ * @return {string} - A replacement string matching the shortcut (e.g. `'\pi'`)
+ * @memberof module:editor/shortcuts
+ * @private
+ */
+
+
+function forString(mode, context, s, config) {
+  var result = '';
+  var skipDefaultShortcuts = config && config.overrideDefaultInlineShortcuts;
+
+  if (!skipDefaultShortcuts) {
+    result = validateShortcut(mode, context, INLINE_SHORTCUTS[s]);
+  }
+
+  var customInlineShortcuts = config && config.inlineShortcuts ? config.inlineShortcuts : null;
+  var customResult;
+
+  if (customInlineShortcuts) {
+    customResult = validateShortcut(mode, context, customInlineShortcuts[s]);
+  }
+
+  return customResult || result;
+}
+/**
+ * Return `p`, the platform name if `p` is the current platform, otherwise
+ * return `!p`. For example, when running on Windows, `platform('mac')` returns
+ * `'!mac'`.
+ * The valid values for `p` are:
+ * - `'mac'`
+ * - `'win'`
+ * - `'android`'
+ * - `'ios'`
+ * - `'chromeos'`
+ * - `'other'` (Linux, etc...)
+ * @param {string} p The platform to test against.
+ * @return {string} if we are running on the candidate platform, return it.
+ * Otherwise, return "!" + candidate.
+ * @memberof module:editor/shortcuts
+ * @private
+ */
+
+
+function platform(p) {
+  var result = 'other';
+
+  if (navigator && navigator.platform && navigator.userAgent) {
+    if (/^(mac)/i.test(navigator.platform)) {
+      result = 'mac';
+    } else if (/^(win)/i.test(navigator.platform)) {
+      result = 'win';
+    } else if (/(android)/i.test(navigator.userAgent)) {
+      result = 'android';
+    } else if (/(iphone)/i.test(navigator.userAgent) || /(ipod)/i.test(navigator.userAgent) || /(ipad)/i.test(navigator.userAgent)) {
+      result = 'ios';
+    } else if (/\bCrOS\b/i.test(navigator.userAgent)) {
+      result = 'chromeos';
+    }
+  }
+
+  return result === p ? p : '!' + p;
+}
+/**
+ * Return the selector matching the keystroke.
+ * 
+ * @param {string} mode
+ * @param {string} keystroke
+ * @return {string}
+ * @memberof module:editor/shortcuts
+ * @private
+ */
+
+
+function selectorForKeystroke(mode, keystroke) {
+  for (var _i = 0, _arr = [platform('mac') + ':' + mode + ':' + keystroke, platform('win') + ':' + mode + ':' + keystroke, platform('ios') + ':' + mode + ':' + keystroke, platform('android') + ':' + mode + ':' + keystroke, platform('chromeos') + ':' + mode + ':' + keystroke, platform('other') + ':' + mode + ':' + keystroke, platform('mac') + ':' + keystroke, platform('win') + ':' + keystroke, platform('ios') + ':' + keystroke, platform('android') + ':' + keystroke, platform('chromeos') + ':' + keystroke, mode + ':' + keystroke, keystroke]; _i < _arr.length; _i++) {
+    var c = _arr[_i];
+
+    if (KEYBOARD_SHORTCUTS[c]) {
+      return KEYBOARD_SHORTCUTS[c];
+    }
+  }
+
+  return '';
+}
+
+function commandToString(command) {
+  var result = command;
+
+  if (Array.isArray(result) && result.length > 0) {
+    result = result[0] + '(' + result.slice(1).join('') + ')';
+  }
+
+  return result;
+}
+
+function forCommand(command) {
+  var result = [];
+
+  if (typeof command === 'string') {
+    var candidate = REVERSE_KEYBOARD_SHORTCUTS[command];
+
+    if (Array.isArray(candidate)) {
+      result = candidate.slice();
+    } else if (candidate) {
+      result.push(candidate);
+    }
+  } // A command can be either a simple selector, or a selector
+  // with arguments. Normalize it to a string
+
+
+  command = commandToString(command);
+  var regex = new RegExp('^' + command.replace('\\', '\\\\').replace('|', '\\|').replace('*', '\\*').replace('$', '\\$').replace('^', '\\^') + '([^*a-zA-Z]|$)');
+
+  for (var shortcut in KEYBOARD_SHORTCUTS) {
+    if (KEYBOARD_SHORTCUTS.hasOwnProperty(shortcut)) {
+      if (regex.test(commandToString(KEYBOARD_SHORTCUTS[shortcut]))) {
+        var m = shortcut.match(/:([^:]*)$/);
+        if (m) result.push(m[1]);
+      }
+    }
+  }
+
+  return stringify(result);
+}
+/**
+ * Return a human readable representation of an array of shortcut strings
+ * @param {Object<string,string>} shortcuts 
+ * @param {?string} join - optional, string in between each shortcut representation
+ * @memberof module:editor/shortcuts
+ * @private
+ */
+
+
+function stringify(shortcuts, join) {
+  var result = '';
+  if (!Array.isArray(shortcuts)) shortcuts = [shortcuts];
+  var _iteratorNormalCompletion = true;
+  var _didIteratorError = false;
+  var _iteratorError = undefined;
+
+  try {
+    for (var _iterator = shortcuts[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      var shortcut = _step.value;
+      var keyboardShortcut = void 0;
+      var platMatch = shortcut.match(/(^[^:]*):/);
+      var plat = platMatch ? platMatch[1] : '';
+
+      if (plat === platform('mac') || plat === platform('win') || plat === platform('ios') || plat === platform('android') || plat === platform('chromeos') || plat === platform('other')) {
+        var m = shortcut.match(/:([^:]*)$/);
+        keyboardShortcut = m ? m[1] : shortcut;
+      } else if (!['mac', '!mac', 'win', '!win', 'ios', '!ios', 'android', '!android', 'chromeos', '!chromeos', 'other', '!other'].includes(plat)) {
+        var _m = shortcut.match(/:([^:]*)$/);
+
+        keyboardShortcut = _m ? _m[1] : shortcut;
+      }
+
+      if (keyboardShortcut) {
+        var useSymbol = platform('mac') === 'mac' || platform('ios') === 'ios';
+        var modifiers = keyboardShortcut.length > 1 ? keyboardShortcut.split('-') : [keyboardShortcut];
+        var shortcutString = '';
+        var _iteratorNormalCompletion2 = true;
+        var _didIteratorError2 = false;
+        var _iteratorError2 = undefined;
+
+        try {
+          for (var _iterator2 = modifiers[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+            var modifier = _step2.value;
+
+            if (!useSymbol && shortcutString.length > 0) {
+              shortcutString += '<span class="ML__shortcut-join">+</span>';
+            }
+
+            if (modifier.substr(0, 3) === 'Key') {
+              shortcutString += modifier.substr(3, 1);
+            } else if (modifier.substr(0, 5) === 'Digit') {
+              shortcutString += modifier.substr(5, 1);
+            } else {
+              shortcutString += {
+                'Meta': useSymbol ? "\u2318" : 'command',
+                'Shift': useSymbol ? "\u21E7" : 'shift',
+                'Alt': useSymbol ? "\u2325" : 'alt',
+                'Ctrl': useSymbol ? "\u2303" : 'control',
+                '\n': useSymbol ? "\u23CE" : 'return',
+                'Return': useSymbol ? "\u23CE" : 'return',
+                'Enter': useSymbol ? "\u2324" : 'enter',
+                'Tab': useSymbol ? "\u21E5" : 'tab',
+                // 'Esc':          useSymbol ? '\u238b' : 'esc',
+                'Esc': 'esc',
+                'Backspace': useSymbol ? "\u232B" : 'backspace',
+                'Del': useSymbol ? "\u2326" : 'del',
+                'PageUp': useSymbol ? "\u21DE" : 'page up',
+                'PageDown': useSymbol ? "\u21DF" : 'page down',
+                'Home': useSymbol ? "\u2912" : 'home',
+                'End': useSymbol ? "\u2913" : 'end',
+                'Spacebar': 'space',
+                'Semicolon': ';',
+                'Period': '.',
+                'Comma': ',',
+                'Minus': '-',
+                'Equal': '=',
+                'Quote': '\'',
+                'BracketLeft': '[',
+                'BracketRight': ']',
+                'Backslash': '\\',
+                'IntlBackslash': '\\',
+                'Backquote': '`',
+                'Slash': '/',
+                'NumpadMultiply': '* &#128290;',
+                'NumpadDivide': '/ &#128290;',
+                // Numeric keypad
+                'NumpadSubtract': '- &#128290;',
+                'NumpadAdd': '+ &#128290;',
+                'NumpadDecimal': '. &#128290;',
+                'NumpadComma': ', &#128290;',
+                'Help': 'help',
+                'Left': "\u21E0",
+                'Up': "\u21E1",
+                'Right': "\u21E2",
+                'Down': "\u21E3"
+              }[modifier] || modifier;
+            }
+          }
+        } catch (err) {
+          _didIteratorError2 = true;
+          _iteratorError2 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+              _iterator2.return();
+            }
+          } finally {
+            if (_didIteratorError2) {
+              throw _iteratorError2;
+            }
+          }
+        }
+
+        if (result.length > 0) {
+          result += join || ' or ';
+        } // if (shortcutString.length === 1) {
+        //     shortcutString = shortcutString + ' (U+' + 
+        //         ('0000' + shortcutString.codePointAt(0).toString(16)).substr(-4) + 
+        //         ')';
+        // }
+
+
+        result += shortcutString;
+      }
+    }
+  } catch (err) {
+    _didIteratorError = true;
+    _iteratorError = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion && _iterator.return != null) {
+        _iterator.return();
+      }
+    } finally {
+      if (_didIteratorError) {
+        throw _iteratorError;
+      }
+    }
+  }
+
+  return result;
+}
+
+var _default = {
+  KEYBOARD_SHORTCUTS: KEYBOARD_SHORTCUTS,
+  INLINE_SHORTCUTS: INLINE_SHORTCUTS,
+  stringify: stringify,
+  startsWithString: startsWithString,
+  forString: forString,
+  selectorForKeystroke: selectorForKeystroke,
+  forCommand: forCommand
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-undo.js b/dist/editor/editor-undo.js
new file mode 100644
index 000000000..f4bedfc77
--- /dev/null
+++ b/dist/editor/editor-undo.js
@@ -0,0 +1,246 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+/**
+ *
+ * @class UndoManager
+ * @property {MathAtom[]} mathlist
+ * @property {object[]} stack Stack of undo/redo states
+ * @property {number} index Index pointing to the undo/redo stack
+ * @property {number} maximumDepth Maximum number of undo/redo states
+ * @global
+ * @private
+ */
+var UndoManager =
+/*#__PURE__*/
+function () {
+  function UndoManager(mathlist) {
+    _classCallCheck(this, UndoManager);
+
+    this.mathlist = mathlist;
+    this.maximumDepth = 1000;
+    this.record = false;
+    this.canCoalesce = false;
+    this.reset();
+  }
+
+  _createClass(UndoManager, [{
+    key: "reset",
+    value: function reset() {
+      this.stack = [];
+      this.index = -1;
+    }
+  }, {
+    key: "startRecording",
+    value: function startRecording() {
+      this.record = true;
+    }
+    /**
+     *
+     * @return {boolean}
+     * @memberof UndoManager
+     * @instance
+     * @private
+     */
+
+  }, {
+    key: "canUndo",
+    value: function canUndo() {
+      return this.index > 0;
+    }
+    /**
+     *
+     * @return {boolean}
+     * @memberof UndoManager
+     * @instance
+     * @private
+     */
+
+  }, {
+    key: "canRedo",
+    value: function canRedo() {
+      return this.index !== this.stack.length - 1;
+    }
+    /**
+     *
+     * @memberof UndoManager
+     * @instance
+     * @private
+     */
+
+  }, {
+    key: "undo",
+    value: function undo(options) {
+      if (this.canUndo()) {
+        if (options && typeof options.onUndoStateWillChange === 'function') {
+          options.onUndoStateWillChange(this.mathlist.target, 'undo');
+        }
+
+        this.restore(this.stack[this.index - 1], options);
+        this.index -= 1;
+
+        if (options && typeof options.onUndoStateDidChange === 'function') {
+          options.onUndoStateDidChange(this.mathlist.target, 'undo');
+        }
+
+        this.canCoalesce = false;
+      }
+    }
+    /**
+     *
+     * @memberof UndoManager
+     * @instance
+     * @private
+     */
+
+  }, {
+    key: "redo",
+    value: function redo(options) {
+      if (this.canRedo()) {
+        if (options && options.onUndoStateWillChange === 'function') {
+          options.onUndoStateWillChange(this.mathlist.target, 'redo');
+        }
+
+        this.index += 1;
+        this.restore(this.stack[this.index], options);
+
+        if (options && typeof options.onUndoStateDidChange === 'function') {
+          options.onUndoStateDidChange(this.mathlist.target, 'redo');
+        }
+
+        this.canCoalesce = false;
+      }
+    }
+    /**
+     * 
+     * @memberof UndoManager
+     * @instance
+     * @private
+     */
+
+  }, {
+    key: "pop",
+    value: function pop() {
+      if (this.canUndo()) {
+        this.index -= 1;
+        this.stack.pop();
+      }
+    }
+    /**
+     * Push a snapshot of the content and selection of the math field onto the
+     * undo stack so that it can potentially be reverted to later.
+     * @memberof UndoManager
+     * @instance
+     * @private
+     */
+
+  }, {
+    key: "snapshot",
+    value: function snapshot(options) {
+      if (!this.record) return;
+
+      if (options && options.onUndoStateWillChange === 'function') {
+        options.onUndoStateWillChange(this.mathlist.target, 'snapshot');
+      } // Drop any entries that are part of the redo stack
+
+
+      this.stack.splice(this.index + 1, this.stack.length - this.index - 1); // Add a new entry
+
+      this.stack.push({
+        latex: this.mathlist.root.toLatex(),
+        selection: this.mathlist.toString()
+      });
+      this.index++; // If we've reached the maximum number of undo operations, forget the 
+      // oldest one.
+
+      if (this.stack.length > this.maximumDepth) {
+        this.stack.shift();
+      }
+
+      if (options && typeof options.onUndoStateDidChange === 'function') {
+        options.onUndoStateDidChange(this.mathlist.target, 'snapshot');
+      }
+
+      this.canCoalesce = false;
+    }
+    /**
+     * 
+     * @param {Object.<any>} options 
+     */
+
+  }, {
+    key: "snapshotAndCoalesce",
+    value: function snapshotAndCoalesce(options) {
+      if (this.canCoalesce) {
+        this.pop();
+      }
+
+      this.snapshot(options);
+      this.canCoalesce = true;
+    }
+    /**
+     * Return an object capturing the state of the content and selection of the
+     * math field. Pass this object to restore() to reset the value of the math
+     * field to this saved value. This does not affect the undo stack.
+    */
+
+  }, {
+    key: "save",
+    value: function save() {
+      return {
+        latex: this.mathlist.root.toLatex(),
+        selection: this.mathlist.toString()
+      };
+    }
+    /**
+     * Set the content and selection of the math field to a value previously
+     * captured with save() or stored in the undo stack.
+     * This does not affect the undo stack.
+    */
+
+  }, {
+    key: "restore",
+    value: function restore(state, options) {
+      var wasSuppressing = this.mathlist.suppressChangeNotifications;
+
+      if (options.suppressChangeNotifications !== undefined) {
+        this.mathlist.suppressChangeNotifications = options.suppressChangeNotifications;
+      } // Restore the content
+
+
+      this.mathlist.insert(state ? state.latex : '', _objectSpread({
+        mode: 'math',
+        insertionMode: 'replaceAll',
+        selectionMode: 'after',
+        format: 'latex'
+      }, options)); // Restore the selection
+
+      this.mathlist.setPath(state ? state.selection : [{
+        relation: 'body',
+        offset: 0
+      }]);
+      this.mathlist.suppressChangeNotifications = wasSuppressing;
+    }
+  }]);
+
+  return UndoManager;
+}();
+
+var _default = {
+  UndoManager: UndoManager
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/editor-virtualKeyboard.js b/dist/editor/editor-virtualKeyboard.js
new file mode 100644
index 000000000..b4da4782f
--- /dev/null
+++ b/dist/editor/editor-virtualKeyboard.js
@@ -0,0 +1,1357 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _mathAtom = _interopRequireDefault(require("../core/mathAtom.js"));
+
+var _span = _interopRequireDefault(require("../core/span.js"));
+
+var _lexer = _interopRequireDefault(require("../core/lexer.js"));
+
+var _parser = _interopRequireDefault(require("../core/parser.js"));
+
+var _color2 = _interopRequireDefault(require("../core/color.js"));
+
+require("../addons/outputLatex.js");
+
+var _l10n = require("./l10n.js");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+var KEYBOARDS = {
+  'numeric': {
+    tooltip: 'keyboard.tooltip.numeric',
+    layer: 'math',
+    label: '123',
+    layers: ['math']
+  },
+  'roman': {
+    tooltip: 'keyboard.tooltip.roman',
+    layer: 'lower-roman',
+    label: 'ABC',
+    layers: ['lower-roman', 'upper-roman', 'symbols']
+  },
+  'greek': {
+    tooltip: 'keyboard.tooltip.greek',
+    layer: 'lower-greek',
+    label: '&alpha;&beta;&gamma;',
+    classes: 'tex-math',
+    layers: ['lower-greek', 'upper-greek']
+  },
+  'functions': {
+    tooltip: 'keyboard.tooltip.functions',
+    layer: 'functions',
+    label: '<i>f</i>&thinsp;()',
+    classes: 'tex',
+    layers: ['functions']
+  },
+  'command': {
+    tooltip: 'keyboard.tooltip.command',
+    // For the command keyboard, perform a command rather than
+    // doing a simple layer switch, as we want to enter command mode
+    // when the keyboard is activated
+    command: 'enterCommandMode',
+    label: "<svg><use xlink:href='#svg-command' /></svg>",
+    layers: ['lower-command', 'upper-command', 'symbols-command']
+  },
+  'style': {
+    tooltip: 'keyboard.tooltip.style',
+    layer: 'style',
+    label: '<b>b</b><i>i</i>𝔹'
+  }
+};
+var SHIFTED_KEYS = {
+  '\\varphi ': {
+    label: '&Phi;',
+    insert: '\\Phi '
+  },
+  '\\varsigma ': {
+    label: '&Sigma;',
+    insert: '\\Sigma '
+  },
+  '\\epsilon ': {
+    label: '&#x0190;',
+    insert: '{\\char"0190}'
+  },
+  '\\rho ': {
+    label: '&#x3A1',
+    insert: '{\\char"3A1}'
+  },
+  '\\tau ': {
+    label: '&#x3A4;',
+    insert: '{\\char"3A4}'
+  },
+  "\\upsilon ": {
+    label: '&Upsilon;',
+    insert: "\\Upsilon "
+  },
+  '\\theta ': {
+    label: '&Theta;',
+    insert: '\\Theta '
+  },
+  '\\iota ': {
+    label: '&Iota;',
+    insert: '{\\char"399}'
+  },
+  '\\omicron ': {
+    label: '&#x039F;',
+    insert: '{\\char"39F}'
+  },
+  '\\pi ': {
+    label: '&Pi;',
+    insert: '\\Pi '
+  },
+  '\\alpha ': {
+    label: '&Alpha;',
+    insert: '{\\char"391}'
+  },
+  '\\sigma ': {
+    label: '&Sigma;',
+    insert: '\\Sigma '
+  },
+  '\\delta ': {
+    label: '&Delta;',
+    insert: '\\Delta '
+  },
+  '\\phi ': {
+    label: '&#x03a6;',
+    insert: '\\Phi '
+  },
+  '\\gamma ': {
+    label: '&Gamma;',
+    insert: '\\Gamma '
+  },
+  '\\eta ': {
+    label: '&Eta;',
+    insert: '{\\char"397}'
+  },
+  '\\xi ': {
+    label: '&Xi;',
+    insert: '\\Xi '
+  },
+  '\\kappa ': {
+    label: '&Kappa;',
+    insert: '{\\char"39A}'
+  },
+  '\\lambda ': {
+    label: '&Lambda;',
+    insert: '\\Lambda '
+  },
+  '\\zeta ': {
+    label: '&Zeta;',
+    insert: '{\\char"396}'
+  },
+  '\\chi ': {
+    label: '&Chi;',
+    insert: '{\\char"3A7}'
+  },
+  '\\psi ': {
+    label: '&Psi;',
+    insert: '\\Psi '
+  },
+  '\\omega ': {
+    label: '&Omega;',
+    insert: '\\Omega '
+  },
+  '\\beta ': {
+    label: '&Beta;',
+    insert: '{\\char"392}'
+  },
+  '\\nu ': {
+    label: '&Nu;',
+    insert: '{\\char"39D}'
+  },
+  '\\mu ': {
+    label: '&Mu;',
+    insert: '{\\char"39C}'
+  } // const FUNCTIONS = [
+  //     'Basic',
+  //         ['\\sin', '\\cos', '\\tan', '\\min', '\\max', '\\gcd', '\\lcm', '\\repeat', 'encapsulate', 'recognize'],
+  //     'Operators',
+  //         ['\\sum', '\\prod', '\\bigcup_x']
+  // ]
+
+};
+var ALT_KEYS_BASE = {
+  '0': ['\\emptyset', '\\varnothing', '\\infty', {
+    latex: '#?_0',
+    insert: '#@_0'
+  }, '\\circ', '\\bigcirc', '\\bullet'],
+  '2': ['\\frac{1}{2}', {
+    latex: '#?^2',
+    insert: '#@^2'
+  }],
+  '3': ['\\frac{1}{3}', {
+    latex: '#?^3',
+    insert: '#@^3'
+  }],
+  '.': [',', ';', '\\colon', {
+    latex: ':',
+    aside: 'ratio'
+  }, {
+    latex: '\\cdotp',
+    aside: 'center dot',
+    classes: 'box'
+  }, {
+    latex: '\\cdots',
+    aside: 'center ellipsis',
+    classes: 'box'
+  }, {
+    latex: '\\ldotp',
+    aside: 'low dot',
+    classes: 'box'
+  }, {
+    latex: '\\ldots',
+    aside: 'low ellipsis',
+    classes: 'box'
+  }, {
+    latex: '\\vdots',
+    aside: '',
+    classes: 'box'
+  }, {
+    latex: '\\ddots',
+    aside: '',
+    classes: 'box'
+  }, '\\odot', '\\oslash', '\\circledcirc'],
+  '*': ['\\cdot', '\\ast', '\\star', '\\bigstar', '\\ltimes', '\\rtimes', '\\rightthreetimes', '\\leftthreetimes', '\\intercal', '\\prod', {
+    latex: '\\prod_{n\\mathop=0}^{\\infty}',
+    classes: 'small'
+  }],
+  '+': ['\\pm', '\\mp', '\\sum', {
+    latex: '\\sum_{n\\mathop=0}^{\\infty}',
+    classes: 'small'
+  }, '\\dotplus', '\\oplus'],
+  '-': ['\\pm', '\\mp', '\\ominus', '\\vert #0  \\vert'],
+  '/': ['\\divideontimes', '/', '\\div'],
+  '(': ['\\left( #0\\right)', '\\left[ #0\\right]', '\\left\\{ #0\\right\\}', '\\left\\langle #0\\right\\rangle', '\\lfloor', '\\llcorner', '(', '\\lbrack', '\\lvert', '\\lVert', '\\lgroup', '\\langle', '\\lceil', "\\ulcorner", '\\lmoustache', '\\lbrace'],
+  ')': ['\\rfloor', '\\lrcorner', ')', '\\rbrack', '\\rvert', '\\rVert', '\\rgroup', '\\rangle', '\\rceil', "\\urcorner", '\\rmoustache', '\\rbrace'],
+  '=': ['\\cong', '\\asymp', '\\equiv', '\\differencedelta', '\\varpropto', '\\thickapprox', '\\approxeq', '\\thicksim', '\\backsim', '\\eqsim', '\\simeq', '\\Bumpeq', '\\bumpeq', '\\doteq', '\\Doteq', '\\fallingdotseq', '\\risingdotseq', '\\coloneq', '\\eqcirc', '\\circeq', '\\triangleq', '\\between'],
+  '!=': ['\\neq', '\\ncong', '', '\\nsim'],
+  '<': ['\\leq', '\\leqq', '\\lneqq', '\\ll', '\\nless', '\\nleq', '\\precsim', '\\lesssim', '\\lessgtr', '\\prec', '\\preccurlyeq', '\\lessdot', '\\nprec'],
+  '>': ['\\geq', '\\geqq', '\\gneqq', '\\gg', '\\ngtr', '\\ngeq', '\\succsim', '\\gtrsim', '\\gtrless', '\\succ', '\\succcurlyeq', '\\gtrdot', '\\nsucc'],
+  'set': ['\\in', '\\owns', '\\subset', '\\nsubset', '\\supset', '\\nsupset'],
+  '!set': ['\\notin', '\\backepsilon'],
+  'subset': [],
+  'supset': [],
+  'infinity': ['\\aleph_0', '\\aleph_1', '\\omega', '\\mathfrak{m}'],
+  'numeric-pi': ['\\prod', '\\theta', '\\rho', '\\sin', '\\cos', '\\tan'],
+  'ee': ['\\times 10^{#?}', '\\ln', '\\ln_{10}', '\\log'],
+  '^': ['_{#?}'],
+  // Integrals
+  'int': [{
+    latex: '\\int_{#?}^{#?}',
+    classes: 'small'
+  }, {
+    latex: '\\int',
+    classes: 'small'
+  }, {
+    latex: '\\smallint',
+    classes: 'small'
+  }, {
+    latex: '\\iint',
+    classes: 'small'
+  }, {
+    latex: '\\iiint',
+    classes: 'small'
+  }, {
+    latex: '\\oint',
+    classes: 'small'
+  }, {
+    latex: '\\dfrac{\\rd}{\\rd x}',
+    classes: 'small'
+  }, {
+    latex: '\\frac{\\partial}{\\partial x}',
+    classes: 'small'
+  }, '\\capitalDifferentialD', '\\rd', '\\partial'],
+  'nabla': ['\\nabla\\times', '\\nabla\\cdot', '\\nabla^{2}'],
+  '!': ['!!', '\\Gamma', '\\Pi'],
+  'accents': ['\\bar{#@}', '\\vec{#@}', '\\hat{#@}', '\\check{#@}', '\\dot{#@}', '\\ddot{#@}', '\\mathring{#@}', '\\breve{#@}', '\\acute{#@}', '\\tilde{#@}', '\\grave{#@}'],
+  // 'absnorm': [{latex:'\\lVert #@ \\rVert', aside:'norm'},
+  //     {latex:'\\lvert #@ \\rvert', aside:'determinant'},
+  //     {latex:'\\begin{cardinality} #@ \\end{cardinality}', aside:'cardinality'},
+  //     {latex:'\\lvert #@ \\rvert', aside:'length'},
+  //     {latex:'\\lvert #@ \\rvert', aside:'order'},
+  // ],
+  'A': [{
+    latex: '\\aleph',
+    aside: 'aleph'
+  }, {
+    latex: '\\forall',
+    aside: 'for all'
+  }],
+  'a': [{
+    latex: '\\aleph',
+    aside: 'aleph'
+  }, {
+    latex: '\\forall',
+    aside: 'for all'
+  }],
+  'b': [{
+    latex: '\\beth',
+    aside: 'beth'
+  }],
+  'B': [{
+    latex: '\\beth',
+    aside: 'beth'
+  }],
+  'c': [{
+    latex: '\\C',
+    aside: 'set of complex numbers'
+  }],
+  'd': [{
+    latex: '\\daleth',
+    aside: 'daleth'
+  }],
+  'D': [{
+    latex: '\\daleth',
+    aside: 'daleth'
+  }],
+  'e': [{
+    latex: '\\exponentialE',
+    aside: 'exponential e'
+  }, {
+    latex: '\\exists',
+    aside: 'there is'
+  }, {
+    latex: '\\nexists',
+    aside: 'there isn’t'
+  }],
+  'g': [{
+    latex: '\\gimel',
+    aside: 'gimel'
+  }],
+  'G': [{
+    latex: '\\gimel',
+    aside: 'gimel'
+  }],
+  'h': [{
+    latex: '\\hbar',
+    aside: 'h bar'
+  }, {
+    latex: '\\hslash',
+    aside: 'h slash'
+  }],
+  'i': [{
+    latex: '\\imaginaryI',
+    aside: 'imaginary i'
+  }],
+  'j': [{
+    latex: '\\imaginaryJ',
+    aside: 'imaginary j'
+  }],
+  'l': [{
+    latex: '\\ell',
+    aside: 'ell'
+  }],
+  'n': [{
+    latex: '\\N',
+    aside: 'set of natural numbers'
+  }],
+  'p': [{
+    latex: '\\P',
+    aside: 'set of primes'
+  }],
+  'q': [{
+    latex: '\\Q',
+    aside: 'set of rational numbers'
+  }],
+  'r': [{
+    latex: '\\R',
+    aside: 'set of real numbers'
+  }],
+  'z': [{
+    latex: '\\Z',
+    aside: 'set of integers'
+  }],
+  'x-var': ['y', 'z', 't', 'r', {
+    latex: 'f(#?)',
+    classes: 'small'
+  }, {
+    latex: 'g(#?)',
+    classes: 'small'
+  }, 'x^2', 'x^n', 'x_n', 'x_{n+1}', 'x_i', 'x_{i+1}'],
+  'n-var': ['i', 'j', 'p', 'k', 'a', 'u'],
+  'ii': ['\\Re', '\\Im', '\\imaginaryJ', '\\Vert #0 \\Vert'],
+  'logic': [{
+    latex: '\\exists',
+    aside: 'there is'
+  }, {
+    latex: '\\nexists',
+    aside: 'there isn’t'
+  }, {
+    latex: '\\ni',
+    aside: 'such that'
+  }, {
+    latex: '\\Colon',
+    aside: 'such that'
+  }, {
+    latex: '\\implies',
+    aside: 'implies'
+  }, {
+    latex: '\\impliedby',
+    aside: 'implied by'
+  }, {
+    latex: '\\iff',
+    aside: 'if and only if'
+  }, {
+    latex: '\\land',
+    aside: 'and'
+  }, {
+    latex: '\\lor',
+    aside: 'or'
+  }, {
+    latex: '\\oplus',
+    aside: 'xor'
+  }, {
+    latex: '\\lnot',
+    aside: 'not'
+  }, {
+    latex: '\\downarrow',
+    aside: 'nor'
+  }, {
+    latex: "\\uparrow",
+    aside: 'nand'
+  }, {
+    latex: '\\curlywedge',
+    aside: 'nor'
+  }, {
+    latex: '\\bar\\curlywedge',
+    aside: 'nand'
+  }, // {latex:'\\barwedge', aside:'bar wedge'},
+  // {latex:'\\curlyvee', aside:'curly vee'},
+  // {latex:'\\veebar', aside:'vee bar'},
+  {
+    latex: '\\therefore',
+    aside: 'therefore'
+  }, {
+    latex: '\\because',
+    aside: 'because'
+  }, {
+    latex: '^\\biconditional',
+    aside: 'biconditional'
+  }, '\\leftrightarrow', '\\Leftrightarrow', '\\to', '\\models', '\\vdash', '\\gets', '\\dashv', '\\roundimplies'],
+  'set-operators': ['\\cap', '\\cup', '\\setminus', '\\smallsetminus', '\\complement'],
+  'set-relations': ['\\in', '\\notin', '\\ni', '\\owns', '\\subset', '\\supset', '\\subseteq', '\\supseteq', '\\subsetneq', '\\supsetneq', '\\varsubsetneq', '\\subsetneqq', '\\nsubset', '\\nsupset', '\\nsubseteq', '\\nsupseteq'],
+  'space': [{
+    latex: '\\char"203A\\!\\char"2039',
+    insert: '\\!',
+    aside: 'negative thin space<br>⁻³⧸₁₈ em'
+  }, {
+    latex: "\\unicode{\"203A}\\,\\unicode{\"2039}",
+    insert: '\\,',
+    aside: 'thin space<br>³⧸₁₈ em'
+  }, {
+    latex: "\\unicode{\"203A}\\:\\unicode{\"2039}",
+    insert: '\\:',
+    aside: 'medium space<br>⁴⧸₁₈ em'
+  }, {
+    latex: "\\unicode{\"203A}\\;\\unicode{\"2039}",
+    insert: '\\;',
+    aside: 'thick space<br>⁵⧸₁₈ em'
+  }, {
+    latex: "\\unicode{\"203A}\\ \\unicode{\"2039}",
+    insert: '\\ ',
+    aside: '⅓ em'
+  }, {
+    latex: "\\unicode{\"203A}\\enspace\\unicode{\"2039}",
+    insert: '\\enspace',
+    aside: '½ em'
+  }, {
+    latex: "\\unicode{\"203A}\\quad\\unicode{\"2039}",
+    insert: '\\quad',
+    aside: '1 em'
+  }, {
+    latex: "\\unicode{\"203A}\\qquad\\unicode{\"2039}",
+    insert: '\\qquad',
+    aside: '2 em'
+  }],
+  // @todo could also delete to end
+  'delete': [{
+    label: '<span class="warning"><svg><use xlink:href="#svg-trash" /></svg></span>',
+    command: '"deleteAll"'
+  }],
+  // @todo Tab: could turn on speech, visible keyboard...
+  '->|': []
+};
+var ALT_KEYS = {};
+var LAYERS = {
+  'math': "\n        <div class='rows'>\n            <ul>\n                <li class='keycap tex' data-alt-keys='x-var'><i>x</i></li>\n                <li class='keycap tex' data-alt-keys='n-var'><i>n</i></li>\n                <li class='separator w5'></li>\n                <row name='numpad-1'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-key='ee' data-alt-keys='ee'>e</li>\n                <li class='keycap tex' data-key='ii' data-alt-keys='ii'>i</li>\n                <li class='keycap tex' data-latex='\\pi' data-alt-keys='numeric-pi'></li>\n            </ul>\n            <ul>\n                <li class='keycap tex' data-key='<' data-alt-keys='<'>&lt;</li>\n                <li class='keycap tex' data-key='>' data-alt-keys='>'>&gt;</li>\n                <li class='separator w5'></li>\n                <row name='numpad-2'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='x2' data-insert='#@^{2}'><span><i>x</i>&thinsp;\xB2</span></li>\n                <li class='keycap tex' data-alt-keys='^' data-insert='#@^{#?}'><span><i>x</i><sup>&thinsp;<small>&#x2b1a;</small></sup></span></li>\n                <li class='keycap tex' data-alt-keys='sqrt' data-insert='\\sqrt{#0}' data-latex='\\sqrt{#0}'></li>\n            </ul>\n            <ul>\n                <li class='keycap tex' data-alt-keys='(' >(</li>\n                <li class='keycap tex' data-alt-keys=')' >)</li>\n                <li class='separator w5'></li>\n                <row name='numpad-3'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex small' data-alt-keys='int' data-latex='\\int_0^\\infty'><span></span></li>\n                <li class='keycap tex' data-latex='\\forall' data-alt-keys='logic' ></li>\n                <li class='action font-glyph bottom right' data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'>&#x232b;</li></ul>\n            </ul>\n            <ul>\n                <li class='keycap' data-alt-keys='foreground-color' data-command='[\"applyStyle\",{\"color\":\"#cc2428\"}]'><span style='border-radius: 50%;width:22px;height:22px; border: 3px solid #cc2428; box-sizing: border-box'></span></li>\n                <li class='keycap' data-alt-keys='background-color' data-command='[\"applyStyle\",{\"backgroundColor\":\"#fff590\"}]'><span style='border-radius: 50%;width:22px;height:22px; background:#fff590; box-sizing: border-box'></span></li>\n                <li class='separator w5'></li>\n                <row name='numpad-4'/>\n                <li class='separator w5'></li>\n                <arrows/>\n            </ul>\n        </div>\n    ",
+  'lower-roman': "\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <row name='lower-1' shift-layer='upper-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <row name='lower-2'  shift-layer='upper-roman''/>\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <row name='lower-3'  shift-layer='upper-roman''/>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols'>&infin;\u2260</li>\n                <li class='keycap' data-alt-keys=','>,</li>\n                <li class='keycap w50' data-key=' ' data-alt-keys='space'>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
+  'upper-roman': "\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <row name='upper-1'  shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <row name='upper-2' shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <row name='upper-3' shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols'>&infin;\u2260</li>\n                <li class='keycap' data-alt-keys='.'>;</li>\n                <li class='keycap w50' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
+  'symbols': "\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\lbrace '>{</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rbrace '>}</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='set' data-insert='\\in '>&#x2208;</li>\n                <li class='keycap tex' data-alt-keys='!set' data-insert='\\notin '>&#x2209;</li>\n                <li class='keycap tex' data-insert='\\Re '>&#x211c;<aside>Real</aside></li>\n                <li class='keycap tex' data-insert='\\Im '>&#x2111;<aside>Imaginary</aside></li>\n                <li class='keycap w15' data-insert='\\ulcorner#0\\urcorner '><span><sup>&#x250c;</sup><span><span style='color:#ddd'>o</span><sup>&#x2510;</sup></span><aside>ceil</aside></li>\n                <li class='keycap tex' data-alt-keys='nabla' data-insert='\\nabla '>&#x2207;<aside>nabla</aside></li>\n                <li class='keycap tex' data-alt-keys='infinity' data-insert='\\infty '>&#x221e;</li>\n\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\lbrack '>[</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rbrack '>]</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='subset' data-insert='\\subset '>&#x2282;</li>\n                <li class='keycap tex' data-alt-keys='supset' data-insert='\\supset '>&#x2283;</li>\n                <li class='keycap tex' data-key='!' data-alt-keys='!'>!<aside>factorial</aside></li>\n                <li class='keycap' data-insert='^{\\prime} '><span><sup><span><span style='color:#ddd'>o</span>&#x2032</sup></span><aside>prime</aside></li>\n                <li class='keycap w15' data-insert='\\llcorner#0\\lrcorner '><span><sub>&#x2514;</sub><span style='color:#ddd'>o</span><sub>&#x2518;</sub></span><aside>floor</aside></li>\n                <li class='keycap tex' data-insert='\\partial '>&#x2202;<aside>partial<br>derivative</aside></li>\n                <li class='keycap tex' data-insert='\\emptyset '>&#x2205;<aside>empty set</aside></li>\n\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\langle '>&#x27e8;</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rangle '>&#x27e9;</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-insert='\\subseteq '>&#x2286;</li>\n                <li class='keycap tex' data-insert='\\supseteq '>&#x2287;</li>\n                <li class='keycap tex' data-alt-keys='accents' data-insert='\\vec{#@}' data-latex='\\vec{#?}' data-aside='vector'></li>\n                <li class='keycap tex' data-alt-keys='accents' data-insert='\\bar{#@}' data-latex='\\bar{#?}' data-aside='bar'></li>\n                <li class='keycap tex' data-alt-keys='absnorm' data-insert='\\lvert #@ \\rvert ' data-latex='\\lvert #? \\rvert' data-aside='abs'></li>\n                <li class='keycap tex' data-insert='\\ast '>&#x2217;<aside>asterisk</aside></li>\n\n                <li class='action font-glyph bottom right w15'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='lower-roman'>abc</li>\n                <li class='keycap tex' data-insert='\\cdot '>&#x22c5;<aside>centered dot</aside></li>\n                <li class='keycap tex' data-insert='\\colon '>:<aside>colon</aside></li>\n                <li class='keycap tex' data-insert='\\circ '>&#x2218;<aside>circle</aside></li>\n                <li class='keycap tex' data-insert='\\approx '>&#x2248;<aside>approx.</aside></li>\n                <li class='keycap tex' data-insert='\\ne '>&#x2260;</li>\n                <li class='keycap tex' data-insert='\\pm '>&#x00b1;</li>\n                <arrows/>\n            </ul>\n        </div>",
+  'lower-greek': "\n        <div class='rows'>\n            <ul><li class='keycap tex' data-insert='\\varphi '><i>&#x03c6;</i><aside>phi var.</aside></li>\n                <li class='keycap tex' data-insert='\\varsigma '><i>&#x03c2;</i><aside>sigma var.</aside></li>\n                <li class='keycap tex' data-insert='\\epsilon '><i>&#x03f5;</i></li>\n                <li class='keycap tex' data-insert='\\rho '><i>&rho;</i></li>\n                <li class='keycap tex' data-insert='\\tau '><i>&tau;</i></li>\n                <li class='keycap tex' data-insert='\\upsilon '><i>&upsilon;</i></li>\n                <li class='keycap tex' data-insert='\\theta '><i>&theta;</i></li>\n                <li class='keycap tex' data-insert='\\iota '><i>&iota;</i></li>\n                <li class='keycap tex' data-insert='\\omicron '>&omicron;</i></li>\n                <li class='keycap tex' data-insert='\\pi '><i>&pi;</i></li>\n            </ul>\n            <ul><li class='keycap tex' data-insert='\\alpha ' data-shifted='&Alpha;' data-shifted-command='[\"insert\",\"{\\\\char\\\"391}\"]'><i>&alpha;</i></li>\n                <li class='keycap tex' data-insert='\\sigma '><i>&sigma;</i></li>\n                <li class='keycap tex' data-insert='\\delta '><i>&delta;</i></li>\n                <li class='keycap tex' data-insert='\\phi '><i>&#x03d5;</i></i></li>\n                <li class='keycap tex' data-insert='\\gamma '><i>&gamma;</i></li>\n                <li class='keycap tex' data-insert='\\eta '><i>&eta;</i></li>\n                <li class='keycap tex' data-insert='\\xi '><i>&xi;</i></li>\n                <li class='keycap tex' data-insert='\\kappa '><i>&kappa;</i></li>\n                <li class='keycap tex' data-insert='\\lambda '><i>&lambda;</i></li>\n            </ul>\n            <ul><li class='shift modifier font-glyph bottom left w15 layer-switch' data-layer='upper-greek'>&#x21e7;</li>\n                <li class='keycap tex' data-insert='\\zeta '><i>&zeta;</i></li>\n                <li class='keycap tex' data-insert='\\chi '><i>&chi;</i></li>\n                <li class='keycap tex' data-insert='\\psi '><i>&psi;</i></li>\n                <li class='keycap tex' data-insert='\\omega '><i>&omega;</i></li>\n                <li class='keycap tex' data-insert='\\beta '><i>&beta;</i></li>\n                <li class='keycap tex' data-insert='\\nu '><i>&nu;</i></li>\n                <li class='keycap tex' data-insert='\\mu '><i>&mu;</i></li>\n                <li class='action font-glyph bottom right w15'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <li class='keycap ' data-key=' '>&nbsp;</li>\n                <li class='keycap'>,</li>\n                <li class='keycap tex' data-insert='\\varepsilon '><i>&#x03b5;</i><aside>epsilon var.</aside></li>\n                <li class='keycap tex' data-insert='\\vartheta '><i>&#x03d1;</i><aside>theta var.</aside></li>\n                <li class='keycap tex' data-insert='\\varkappa '><i>&#x3f0;</i><aside>kappa var.</aside></li>\n                <li class='keycap tex' data-insert='\\varpi '><i>&#x03d6;<aside>pi var.</aside></i></li>\n                <li class='keycap tex' data-insert='\\varrho '><i>&#x03f1;</i><aside>rho var.</aside></li>\n                <arrows/>\n            </ul>\n        </div>",
+  'upper-greek': "\n        <div class='rows'>\n            <ul><li class='keycap tex' data-insert='\\Phi '>&Phi;<aside>phi</aside></li>\n                <li class='keycap tex' data-insert='\\Sigma '>&Sigma;<aside>sigma</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"0190}'>&#x0190;<aside>epsilon</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A1}'>&#x3A1;<aside>rho</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A4}'>&#x3A4;<aside>tau</aside></li>\n                <li class='keycap tex' data-insert='\\Upsilon '>&Upsilon;<aside>upsilon</aside></li>\n                <li class='keycap tex' data-insert='\\Theta '>&Theta;<aside>theta</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"399}'>&Iota;<aside>iota</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"39F}'>&#x039F;<aside>omicron</aside></li>\n                <li class='keycap tex' data-insert='\\Pi '>&Pi;<aside>pi</aside></li></ul>\n            <ul><li class='keycap tex' data-insert='{\\char\"391}'>&#x391;<aside>alpha</aside></li>\n                <li class='keycap tex' data-insert='\\Sigma '>&Sigma;<aside>sigma</aside></li>\n                <li class='keycap tex' data-insert='\\Delta '>&Delta;<aside>delta</aside></li>\n                <li class='keycap tex' data-insert='\\Phi '>&#x03a6;<aside>phi</aside></li>\n                <li class='keycap tex' data-insert='\\Gamma '>&Gamma;<aside>gamma</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"397}'>&Eta;<aside>eta</aside></li>\n                <li class='keycap tex' data-insert='\\Xi '>&Xi;<aside>xi</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"39A}'>&Kappa;<aside>kappa</aside></li>\n                <li class='keycap tex' data-insert='\\Lambda '>&Lambda;<aside>lambda</aside></li></ul>\n            <ul><li class='shift modifier font-glyph bottom left selected w15 layer-switch' data-layer='lower-greek'>&#x21e7;</li>\n                <li class='keycap tex' data-insert='{\\char\"396}'>&Zeta;<aside>zeta</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A7}'>&Chi;<aside>chi</aside></li>\n                <li class='keycap tex' data-insert='\\Psi '>&Psi;<aside>psi</aside></li>\n                <li class='keycap tex' data-insert='\\Omega '>&Omega;<aside>omega</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"392}'>&Beta;<aside>beta</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"39D}'>&Nu;<aside>nu</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"39C}'>&Mu;<aside>mu</aside></li>\n                <li class='action font-glyph bottom right w15' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'>&#x232b;</li></ul>\n            <ul>\n                <li class='separator w10'>&nbsp;</li>\n                <li class='keycap'>.</li>\n                <li class='keycap w50' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
+  'lower-command': "\n        <div class='rows'>\n            <ul><row name='lower-1' class='tt' shift-layer='upper-command'/></ul>\n            <ul><row name='lower-2' class='tt' shift-layer='upper-command'/></ul>\n            <ul><row name='lower-3' class='tt' shift-layer='upper-command'/></ul>\n            <ul>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols-command'>01#</li>\n                <li class='keycap tt' data-shifted='[' data-shifted-command='[\"insertAndUnshiftKeyboardLayer\", \"[\"]'>{</li>\n                <li class='keycap tt' data-shifted=']' data-shifted-command='[\"insertAndUnshiftKeyboardLayer\", \"]\"]'>}</li>\n                <li class='keycap tt' data-shifted='(' data-shifted-command='[\"insertAndUnshiftKeyboardLayer\", \"(\"]'>^</li>\n                <li class='keycap tt' data-shifted=')' data-shifted-command='[\"insertAndUnshiftKeyboardLayer\", \")\"]'>_</li>\n                <li class='keycap w20' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
+  'upper-command': "\n        <div class='rows'>\n            <ul><row name='upper-1' class='tt' shift-layer='lower-command'/></ul>\n            <ul><row name='upper-2' class='tt' shift-layer='lower-command'/></ul>\n            <ul><row name='upper-3' class='tt' shift-layer='lower-command'/></ul>\n            <ul>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols-command'01#</li>\n                <li class='keycap tt'>[</li>\n                <li class='keycap tt'>]</li>\n                <li class='keycap tt'>(</li>\n                <li class='keycap tt'>)</li>\n                <li class='keycap w20' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
+  'symbols-command': "\n        <div class='rows'>\n            <ul><li class='keycap tt'>1</li><li class='keycap tt'>2</li><li class='keycap tt'>3</li><li class='keycap tt'>4</li><li class='keycap tt'>5</li><li class='keycap tt'>6</li><li class='keycap tt'>7</li><li class='keycap tt'>8</li><li class='keycap tt'>9</li><li class='keycap tt'>0</li></ul>\n            <ul><li class='keycap tt'>!</li><li class='keycap tt'>@</li><li class='keycap tt'>#</li><li class='keycap tt'>$</li><li class='keycap tt'>%</li><li class='keycap tt'>^</li><li class='keycap tt'>&</li><li class='keycap tt'>*</li><li class='keycap tt'>+</li><li class='keycap tt'>=</li></ul>\n            <ul>\n                <li class='keycap tt'>\\</li>\n                <li class='keycap tt'>|</li>\n                <li class='keycap tt'>/</li>\n                <li class='keycap tt'>`</li>\n                <li class='keycap tt'>;</li>\n                <li class='keycap tt'>:</li>\n                <li class='keycap tt'>?</li>\n                <li class='keycap tt'>'</li>\n                <li class='keycap tt'>\"</li>\n                <li class='action font-glyph bottom right'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='lower-command'>abc</li>\n                <li class='keycap tt'>&lt;</li>\n                <li class='keycap tt'>&gt;</li>\n                <li class='keycap tt'>~</li>\n                <li class='keycap tt'>,</li>\n                <li class='keycap tt'>.</li>\n                <li class='keycap' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
+  'functions': "\n        <div class='rows'>\n            <ul><li class='separator'></li>\n                <li class='fnbutton' data-insert='\\sin'></li>\n                <li class='fnbutton' data-insert='\\sin^{-1}'></li>\n                <li class='fnbutton' data-insert='\\ln'></li>\n                <li class='fnbutton' data-insert='\\exponentialE^{#?}'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{lcm}(#?)' data-latex='\\operatorname{lcm}()'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{ceil}(#?)' data-latex='\\operatorname{ceil}()'></li>\n                <li class='bigfnbutton' data-insert='\\lim_{n\\to\\infty}'></li>\n                <li class='bigfnbutton' data-insert='\\int'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{abs}(#?)' data-latex='\\operatorname{abs}()'></li>\n            </ul>\n            <ul><li class='separator'></li>\n                <li class='fnbutton' data-insert='\\cos'></li>\n                <li class='fnbutton' data-insert='\\cos^{-1}'></li>\n                <li class='fnbutton' data-insert='\\ln_{10}'></li>\n                <li class='fnbutton' data-insert='10^{#?}'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{gcd}(#?)' data-latex='\\operatorname{gcd}()'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{floor}(#?)' data-latex='\\operatorname{floor}()'></li>\n                <li class='bigfnbutton' data-insert='\\sum_{n\\mathop=0}^{\\infty}'></li>\n                <li class='bigfnbutton' data-insert='\\int_{0}^{\\infty}'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{sign}(#?)' data-latex='\\operatorname{sign}()'></li>\n            </ul>\n            <ul><li class='separator'></li>\n                <li class='fnbutton' data-insert='\\tan'></li>\n                <li class='fnbutton' data-insert='\\tan^{-1}'></li>\n                <li class='fnbutton' data-insert='\\log_{#?}'></li>\n                <li class='fnbutton' data-insert='\\sqrt[#?]{#0}'></li>\n                <li class='bigfnbutton' data-insert='#0 \\mod' data-latex='\\mod'></li>\n                <li class='bigfnbutton' data-insert='\\operatorname{round}(#?) ' data-latex='\\operatorname{round}()'></li>\n                <li class='bigfnbutton' data-insert='\\prod_{n\\mathop=0}^{\\infty}' data-latex='{\\tiny \\prod_{n=0}^{\\infty}}'></li>\n                <li class='bigfnbutton' data-insert='\\frac{\\differentialD #0}{\\differentialD x}'></li>\n                <li class='action font-glyph bottom right' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'>&#x232b;</li></ul>\n            <ul><li class='separator'></li>\n                <li class='fnbutton'>(</li>\n                <li class='fnbutton'>)</li>\n                <li class='fnbutton' data-insert='^{#?} ' data-latex='x^{#?} '></li>\n                <li class='fnbutton' data-insert='_{#?} ' data-latex='x_{#?} '></li>\n                <li class='keycap w20 ' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",
+  'style': "\n        <div class='rows'>\n            <ul>\n                <li class='keycap' data-alt-keys='foreground-color' data-command='[\"applyStyle\",{\"color\":\"#cc2428\"}]'><span style='border-radius: 50%;width:22px;height:22px; border: 3px solid #cc2428'></span></li>\n                <li class='keycap' data-alt-keys='background-color' data-command='[\"applyStyle\",{\"backgroundColor\":\"#fff590\"}]'><span style='border-radius: 50%;width:22px;height:22px; background:#fff590'></span></li>\n                <li class='separator w5'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"size\":\"size3\"}]' data-latex='\\scriptsize\\text{small}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"size\":\"size5\"}]' data-latex='\\scriptsize\\text{normal}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"size\":\"size9\"}]' data-latex='\\huge\\text{big}'></li>\n                <li class='separator w5'></li>\n                <li class='keycap' data-latex='\\langle' data-command='[\"insert\", \"\\\\langle\", {\"smartFence\":true}]'></li>\n            </ul>\n            <ul>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"l\"}]' data-latex='\\fontseries{l}\\text{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"m\"}]' data-latex='\\fontseries{m}\\text{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"b\"}]' data-latex='\\fontseries{b}\\text{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"bx\"}]' data-latex='\\fontseries{bx}\\text{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"sb\"}]' data-latex='\\fontseries{sb}\\text{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"series\":\"c\"}]' data-latex='\\fontseries{c}\\text{Ab}'></li>\n            </ul>\n            <ul>\n                <li class='keycap' data-command='[\"applyStyle\",{\"shape\":\"up\"}]' data-latex='\\textup{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"shape\":\"it\"}]' data-latex='\\textit{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"shape\":\"sl\"}]' data-latex='\\textsl{Ab}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"shape\":\"sc\"}]' data-latex='\\textsc{Ab}'></li>\n                <li class='separator w5'></li>\n                <li class='keycap' data-insert='\\emph{#?} ' data-latex='\\text{\\emph{emph}}'></li>\n            </ul>\n            <ul>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"cmr\"}]' data-latex='\\textrm{Az}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"cmtt\"}]' data-latex='\\texttt{Az}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"cmss\"}]' data-latex='\\textsf{Az}'></li>\n\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"bb\"}]'  data-latex='\\mathbb{AZ}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"scr\"}]'  data-latex='\\mathscr{AZ}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"cal\"}]' data-latex='\\mathcal{A1}'></li>\n                <li class='keycap' data-command='[\"applyStyle\",{\"fontFamily\":\"frak\"}]' data-latex='\\mathfrak{Az}'></li>\n            </ul>\n        </div>"
+};
+
+function latexToMarkup(latex, arg, mf) {
+  // Since we don't have preceding atoms, we'll interpret #@ as a placeholder
+  latex = latex.replace(/(^|[^\\])#@/g, '$1#?');
+
+  var parse = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', arg, mf.config.macros);
+
+  var spans = _mathAtom.default.decompose({
+    mathstyle: 'displaystyle',
+    macros: mf.config.macros
+  }, parse);
+
+  var base = _span.default.makeSpan(spans, 'ML__base');
+
+  var topStrut = _span.default.makeSpan('', 'ML__strut');
+
+  topStrut.setStyle('height', base.height, 'em');
+
+  var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom');
+
+  bottomStrut.setStyle('height', base.height + base.depth, 'em');
+  bottomStrut.setStyle('vertical-align', -base.depth, 'em');
+
+  var wrapper = _span.default.makeSpan([topStrut, bottomStrut, base], 'ML__mathlive');
+
+  return wrapper.toMarkup();
+}
+/**
+ * Return a markup string for the keyboard toolbar for the specified layer.
+ * @private
+ */
+
+
+function makeKeyboardToolbar(mf, keyboardIDs, currentKeyboard) {
+  // The left hand side of the toolbar has a list of all the available keyboards
+  var result = "<div class='left'>";
+  var keyboardList = keyboardIDs.replace(/\s+/g, ' ').split(' ');
+
+  if (keyboardList.length > 1) {
+    var keyboards = Object.assign({}, KEYBOARDS, mf.config.customVirtualKeyboards || {});
+    var _iteratorNormalCompletion = true;
+    var _didIteratorError = false;
+    var _iteratorError = undefined;
+
+    try {
+      for (var _iterator = keyboardList[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+        var keyboard = _step.value;
+
+        if (!keyboards[keyboard]) {
+          console.error('Unknown virtual keyboard "' + keyboard + '"');
+          break;
+        }
+
+        result += '<div class=\'';
+
+        if (keyboard === currentKeyboard) {
+          result += 'selected ';
+        } else {
+          if (keyboards[keyboard].command) {
+            result += 'action ';
+          } else {
+            result += 'layer-switch ';
+          }
+        }
+
+        result += (keyboards[keyboard].classes || '') + "'";
+
+        if (keyboards[keyboard].tooltip) {
+          result += "data-tooltip='" + (0, _l10n.l10n)(keyboards[keyboard].tooltip) + "' ";
+          result += "data-placement='top' data-delay='1s'";
+        }
+
+        if (keyboard !== currentKeyboard) {
+          if (keyboards[keyboard].command) {
+            result += "data-command='\"" + keyboards[keyboard].command + "\"'";
+          }
+
+          if (keyboards[keyboard].layer) {
+            result += "data-layer='" + keyboards[keyboard].layer + "'";
+          }
+        }
+
+        result += '>' + keyboards[keyboard].label + '</div>';
+      }
+    } catch (err) {
+      _didIteratorError = true;
+      _iteratorError = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion && _iterator.return != null) {
+          _iterator.return();
+        }
+      } finally {
+        if (_didIteratorError) {
+          throw _iteratorError;
+        }
+      }
+    }
+  }
+
+  result += '</div>'; // The right hand side of the toolbar, with the copy/undo/redo commands
+
+  result += "\n        <div class='right'>\n            <div class='action'\n                data-command='\"copyToClipboard\"'\n                data-tooltip='".concat((0, _l10n.l10n)('tooltip.copy to clipboard'), "' data-placement='top' data-delay='1s'>\n                <svg><use xlink:href='#svg-copy' /></svg>\n            </div>\n            <div class='action disabled'\n                data-command='\"undo\"'\n                data-tooltip='").concat((0, _l10n.l10n)('tooltip.undo'), "' data-placement='top' data-delay='1s'>\n                <svg><use xlink:href='#svg-undo' /></svg>\n            </div>\n            <div class='action disabled'\n                data-command='\"redo\"'\n                data-tooltip='").concat((0, _l10n.l10n)('tooltip.redo'), "' data-placement='top' data-delay='1s'>\n                <svg><use xlink:href='#svg-redo' /></svg>\n            </div>\n        </div>\n    ");
+  return "<div class='keyboard-toolbar' role='toolbar'>" + result + "</div>";
+}
+
+function makeKeycap(mf, elList, chainedCommand) {
+  for (var i = 0; i < elList.length; ++i) {
+    var el = elList[i]; // Display
+
+    if (el.getAttribute('data-latex')) {
+      el.innerHTML = latexToMarkup(el.getAttribute('data-latex').replace(/&quot;/g, '"'), {
+        '?': '{\\color{#555}{\\tiny \\char"2B1A}}'
+      }, mf);
+    } else if (el.innerHTML === '' && el.getAttribute('data-insert')) {
+      el.innerHTML = latexToMarkup(el.getAttribute('data-insert').replace(/&quot;/g, '"'), {
+        '?': '{\\color{#555}{\\tiny \\char"2B1A}}'
+      }, mf);
+    } else if (el.getAttribute('data-content')) {
+      el.innerHTML = el.getAttribute('data-content').replace(/&quot;/g, '"');
+    }
+
+    if (el.getAttribute('data-aside')) {
+      el.innerHTML += '<aside>' + el.getAttribute('data-aside').replace(/&quot;/g, '"') + '</aside>';
+    }
+
+    if (el.getAttribute('data-classes')) {
+      el.classList.add(el.getAttribute('data-classes'));
+    }
+
+    var key = el.getAttribute('data-insert');
+    if (key) key = key.replace(/&quot;/g, '"');
+
+    if (key && SHIFTED_KEYS[key]) {
+      el.setAttribute('data-shifted', SHIFTED_KEYS[key].label);
+      el.setAttribute('data-shifted-command', JSON.stringify(['insertAndUnshiftKeyboardLayer', SHIFTED_KEYS[key].insert]));
+    } // Commands
+
+
+    var handlers = void 0;
+
+    if (el.getAttribute('data-command')) {
+      handlers = JSON.parse(el.getAttribute('data-command'));
+    } else if (el.getAttribute('data-insert')) {
+      handlers = ['insert', el.getAttribute('data-insert'), {
+        focus: true,
+        feedback: true,
+        mode: 'math',
+        format: 'auto',
+        resetStyle: true
+      }];
+    } else if (el.getAttribute('data-latex')) {
+      handlers = ['insert', el.getAttribute('data-latex'), {
+        focus: true,
+        feedback: true,
+        mode: 'math',
+        format: 'auto',
+        resetStyle: true
+      }];
+    } else {
+      handlers = ['typedText', el.getAttribute('data-key') || el.textContent, {
+        focus: true,
+        feedback: true,
+        simulateKeystroke: true
+      }];
+    }
+
+    if (chainedCommand) {
+      handlers = [chainedCommand, handlers];
+    }
+
+    if (el.getAttribute('data-alt-keys')) {
+      var altKeys = ALT_KEYS[el.getAttribute('data-alt-keys')];
+
+      if (altKeys) {
+        handlers = {
+          default: handlers,
+          pressAndHoldStart: ['showAlternateKeys', el.getAttribute('data-alt-keys'), altKeys],
+          pressAndHoldEnd: 'hideAlternateKeys'
+        };
+      } else {
+        console.warn('Unknown alt key set: "' + el.getAttribute('data-alt-keys'));
+      }
+    }
+
+    mf._attachButtonHandlers(el, handlers);
+  }
+}
+/**
+ * Expand the shortcut tags (e.g. <row>) inside a layer.
+ * @param {object} mf
+ * @param {string} layer
+ * @private
+ */
+
+
+function expandLayerMarkup(mf, layer) {
+  var ROWS = {
+    // First row should be 10 key wide
+    // Second row should be 10 key wide
+    // Third row should be 8.5 key wide
+    // One row should have ^ (shift key) which is 1.5 key wide
+    // One row should have ~ (delete key) which is .5 or 1.5 key wide
+    'qwerty': {
+      'lower-1': 'qwertyuiop',
+      'lower-2': ' asdfghjkl ',
+      'lower-3': '^zxcvbnm~',
+      'upper-1': 'QWERTYUIOP',
+      'upper-2': ' ASDFGHJKL ',
+      'upper-3': '^ZXCVBNM~',
+      'numpad-1': '789/',
+      'numpad-2': '456*',
+      'numpad-3': '123-',
+      'numpad-4': '0.=+'
+    },
+    'azerty': {
+      'lower-1': 'azertyuiop',
+      'lower-2': 'qsdfghjklm',
+      'lower-3': '^ wxcvbn ~',
+      'upper-1': 'AZERTYUIOP',
+      'upper-2': 'QSDFGHJKLM',
+      'upper-3': '^ WXCVBN ~'
+    },
+    'qwertz': {
+      'lower-1': 'qwertzuiop',
+      'lower-2': ' asdfghjkl ',
+      'lower-3': '^yxcvbnm~',
+      'upper-1': 'QWERTZUIOP',
+      'upper-2': ' ASDFGHJKL',
+      'upper-3': '^YXCVBNM~'
+    },
+    'dvorak': {
+      'lower-1': '^  pyfgcrl ',
+      'lower-2': 'aoeuidhtns',
+      'lower-3': 'qjkxbmwvz~',
+      'upper-1': '^  PYFGCRL ',
+      'upper-2': 'AOEUIDHTNS',
+      'upper-3': 'QJKXBMWVZ~'
+    },
+    'colemak': {
+      'lower-1': ' qwfpgjluy ',
+      'lower-2': 'arstdhneio',
+      'lower-3': '^zxcvbkm~',
+      'upper-1': ' QWFPGNLUY ',
+      'upper-2': 'ARSTDHNEIO',
+      'upper-3': '^ZXCVBKM~'
+    }
+  };
+  var layout = ROWS[mf.config.virtualKeyboardLayout] ? ROWS[mf.config.virtualKeyboardLayout] : ROWS['qwerty'];
+  var result = layer;
+  var row;
+  result = result.replace(/<arrows\/>/g, "\n        <li class='action' data-command='[\"performWithFeedback\",\"moveToPreviousChar\"]'\n            data-shifted='<svg><use xlink:href=\"#svg-angle-double-left\" /></svg>'\n            data-shifted-command='[\"performWithFeedback\",\"extendToPreviousChar\"]'>\n            <svg><use xlink:href='#svg-arrow-left' /></svg>\n        </li>\n        <li class='action' data-command='[\"performWithFeedback\",\"moveToNextChar\"]'\n            data-shifted='<svg><use xlink:href=\"#svg-angle-double-right\" /></svg>'\n            data-shifted-command='[\"performWithFeedback\",\"extendToNextChar\"]'>\n            <svg><use xlink:href='#svg-arrow-right' /></svg>\n        </li>\n        <li class='action' data-command='[\"performWithFeedback\",\"moveToNextPlaceholder\"]'>\n        <svg><use xlink:href='#svg-tab' /></svg></li>");
+  var m = result.match(/(<row\s+)(.*)((?:<\/row|\/)>)/);
+
+  while (m) {
+    row = '';
+    var attributesArray = m[2].match(/[a-zA-Z][a-zA-Z0-9-]*=(['"])(.*?)\1/g);
+    var attributes = {};
+    var _iteratorNormalCompletion2 = true;
+    var _didIteratorError2 = false;
+    var _iteratorError2 = undefined;
+
+    try {
+      for (var _iterator2 = attributesArray[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+        var attribute = _step2.value;
+        var m2 = attribute.match(/([a-zA-Z][a-zA-Z0-9-]*)=(['"])(.*?)\2/);
+        attributes[m2[1]] = m2[3];
+      }
+    } catch (err) {
+      _didIteratorError2 = true;
+      _iteratorError2 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+          _iterator2.return();
+        }
+      } finally {
+        if (_didIteratorError2) {
+          throw _iteratorError2;
+        }
+      }
+    }
+
+    var keys = layout[attributes['name']];
+    if (!keys) keys = ROWS['qwerty'][attributes['name']];
+
+    if (!keys) {
+      console.warn('Unknown roman keyboard row: ' + attributes['name']);
+    } else {
+      var _iteratorNormalCompletion3 = true;
+      var _didIteratorError3 = false;
+      var _iteratorError3 = undefined;
+
+      try {
+        for (var _iterator3 = keys[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+          var c = _step3.value;
+          var cls = attributes['class'] || '';
+          if (cls) cls = ' ' + cls;
+
+          if (c === '~') {
+            row += "<li class='action font-glyph bottom right ";
+            row += keys.length - (keys.match(/ /g) || []).length / 2 === 10 ? 'w10' : 'w15';
+            row += "' data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                        data-shifted-command='\"deleteAll\"'\n                        data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                        >&#x232b;</li>";
+          } else if (c === ' ') {
+            // Separator
+            row += "<li class='separator w5'></li>";
+          } else if (c === '^') {
+            // Shift key
+            row += "<li class='shift modifier font-glyph bottom left w15 layer-switch' data-layer='" + attributes['shift-layer'] + "'>&#x21e7;</li>";
+          } else if (c === '/') {
+            row += "<li class='keycap" + cls + "' data-alt-keys='/' data-insert='\\frac{#0}{#?}'>&divide;</li>";
+          } else if (c === '*') {
+            row += "<li class='keycap" + cls + "' data-alt-keys='*' data-insert='\\times '>&times;</li>";
+          } else if (c === '-') {
+            row += "<li class='keycap" + cls + "' data-alt-keys='*' data-key='-' data-alt-keys='-'>&#x2212;</li>";
+          } else if (/tt/.test(cls)) {
+            row += "<li class='keycap" + cls + "' data-alt-keys='" + c + "'" + " data-command='[\"typedText\",\"" + c + "\",{\"commandMode\":true, \"focus\":true, \"feedback\":true}]'" + ">" + c + "</li>";
+          } else {
+            row += "<li class='keycap" + cls + "' data-alt-keys='" + c + "'>" + c + "</li>";
+          }
+        }
+      } catch (err) {
+        _didIteratorError3 = true;
+        _iteratorError3 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+            _iterator3.return();
+          }
+        } finally {
+          if (_didIteratorError3) {
+            throw _iteratorError3;
+          }
+        }
+      }
+    }
+
+    result = result.replace(new RegExp(m[1] + m[2] + m[3]), row);
+    m = result.match(/(<row\s+)(.*)((?:<\/row|\/)>)/);
+  }
+
+  return result;
+}
+/**
+ * Construct a virtual keyboard element based on the config options in the
+ * mathfield and an optional theme.
+ * @param {object} mf
+ * @param {string} theme
+ * @result {} A DOM element
+ */
+
+
+function make(mf, theme) {
+  var svgIcons = "<svg xmlns=\"http://www.w3.org/2000/svg\" style=\"display: none;\">\n\n            <symbol id=\"svg-command\" viewBox=\"0 0 640 512\">\n                <path d=\"M34.495 36.465l211.051 211.05c4.686 4.686 4.686 12.284 0 16.971L34.495 475.535c-4.686 4.686-12.284 4.686-16.97 0l-7.071-7.07c-4.686-4.686-4.686-12.284 0-16.971L205.947 256 10.454 60.506c-4.686-4.686-4.686-12.284 0-16.971l7.071-7.07c4.686-4.687 12.284-4.687 16.97 0zM640 468v-10c0-6.627-5.373-12-12-12H300c-6.627 0-12 5.373-12 12v10c0 6.627 5.373 12 12 12h328c6.627 0 12-5.373 12-12z\"/>\n            </symbol>\n\n            <symbol id=\"svg-undo\" viewBox=\"0 0 512 512\">\n                <path d=\"M20 8h10c6.627 0 12 5.373 12 12v110.625C85.196 57.047 165.239 7.715 256.793 8.001 393.18 8.428 504.213 120.009 504 256.396 503.786 393.181 392.834 504 256 504c-63.926 0-122.202-24.187-166.178-63.908-5.113-4.618-5.354-12.561-.482-17.433l7.069-7.069c4.503-4.503 11.749-4.714 16.482-.454C150.782 449.238 200.935 470 256 470c117.744 0 214-95.331 214-214 0-117.744-95.331-214-214-214-82.862 0-154.737 47.077-190.289 116H180c6.627 0 12 5.373 12 12v10c0 6.627-5.373 12-12 12H20c-6.627 0-12-5.373-12-12V20c0-6.627 5.373-12 12-12z\"/>\n            </symbol>\n            <symbol id=\"svg-redo\" viewBox=\"0 0 512 512\">\n                <path d=\"M492 8h-10c-6.627 0-12 5.373-12 12v110.625C426.804 57.047 346.761 7.715 255.207 8.001 118.82 8.428 7.787 120.009 8 256.396 8.214 393.181 119.166 504 256 504c63.926 0 122.202-24.187 166.178-63.908 5.113-4.618 5.354-12.561.482-17.433l-7.069-7.069c-4.503-4.503-11.749-4.714-16.482-.454C361.218 449.238 311.065 470 256 470c-117.744 0-214-95.331-214-214 0-117.744 95.331-214 214-214 82.862 0 154.737 47.077 190.289 116H332c-6.627 0-12 5.373-12 12v10c0 6.627 5.373 12 12 12h160c6.627 0 12-5.373 12-12V20c0-6.627-5.373-12-12-12z\"/>\n            </symbol>\n            <symbol id=\"svg-arrow-left\" viewBox=\"0 0 192 512\">\n                <path d=\"M25.1 247.5l117.8-116c4.7-4.7 12.3-4.7 17 0l7.1 7.1c4.7 4.7 4.7 12.3 0 17L64.7 256l102.2 100.4c4.7 4.7 4.7 12.3 0 17l-7.1 7.1c-4.7 4.7-12.3 4.7-17 0L25 264.5c-4.6-4.7-4.6-12.3.1-17z\"/>\n            </symbol>\n            <symbol id=\"svg-arrow-right\" viewBox=\"0 0 192 512\">\n                    <path d=\"M166.9 264.5l-117.8 116c-4.7 4.7-12.3 4.7-17 0l-7.1-7.1c-4.7-4.7-4.7-12.3 0-17L127.3 256 25.1 155.6c-4.7-4.7-4.7-12.3 0-17l7.1-7.1c4.7-4.7 12.3-4.7 17 0l117.8 116c4.6 4.7 4.6 12.3-.1 17z\"/>\n            </symbol>\n            <symbol id=\"svg-tab\" viewBox=\"0 0 448 512\">\n                    <path d=\"M32 217.1c0-8.8 7.2-16 16-16h144v-93.9c0-7.1 8.6-10.7 13.6-5.7l143.5 143.1c6.3 6.3 6.3 16.4 0 22.7L205.6 410.4c-5 5-13.6 1.5-13.6-5.7v-93.9H48c-8.8 0-16-7.2-16-16v-77.7m-32 0v77.7c0 26.5 21.5 48 48 48h112v61.9c0 35.5 43 53.5 68.2 28.3l143.6-143c18.8-18.8 18.8-49.2 0-68L228.2 78.9c-25.1-25.1-68.2-7.3-68.2 28.3v61.9H48c-26.5 0-48 21.6-48 48zM436 64h-8c-6.6 0-12 5.4-12 12v360c0 6.6 5.4 12 12 12h8c6.6 0 12-5.4 12-12V76c0-6.6-5.4-12-12-12z\"/>\n            </symbol>\n            <symbol id=\"svg-copy\" viewBox=\"0 0 448 512\">\n                <path d=\"M433.941 65.941l-51.882-51.882A48 48 0 0 0 348.118 0H176c-26.51 0-48 21.49-48 48v48H48c-26.51 0-48 21.49-48 48v320c0 26.51 21.49 48 48 48h224c26.51 0 48-21.49 48-48v-48h80c26.51 0 48-21.49 48-48V99.882a48 48 0 0 0-14.059-33.941zM352 32.491a15.88 15.88 0 0 1 7.431 4.195l51.882 51.883A15.885 15.885 0 0 1 415.508 96H352V32.491zM288 464c0 8.822-7.178 16-16 16H48c-8.822 0-16-7.178-16-16V144c0-8.822 7.178-16 16-16h80v240c0 26.51 21.49 48 48 48h112v48zm128-96c0 8.822-7.178 16-16 16H176c-8.822 0-16-7.178-16-16V48c0-8.822 7.178-16 16-16h144v72c0 13.2 10.8 24 24 24h72v240z\"/>\n            </symbol>\n            <symbol id=\"svg-angle-double-right\" viewBox=\"0 0 320 512\">\n                <path d=\"M166.9 264.5l-117.8 116c-4.7 4.7-12.3 4.7-17 0l-7.1-7.1c-4.7-4.7-4.7-12.3 0-17L127.3 256 25.1 155.6c-4.7-4.7-4.7-12.3 0-17l7.1-7.1c4.7-4.7 12.3-4.7 17 0l117.8 116c4.6 4.7 4.6 12.3-.1 17zm128-17l-117.8-116c-4.7-4.7-12.3-4.7-17 0l-7.1 7.1c-4.7 4.7-4.7 12.3 0 17L255.3 256 153.1 356.4c-4.7 4.7-4.7 12.3 0 17l7.1 7.1c4.7 4.7 12.3 4.7 17 0l117.8-116c4.6-4.7 4.6-12.3-.1-17z\"/>\n            </symbol>\n            <symbol id=\"svg-angle-double-left\" viewBox=\"0 0 320 512\">\n                <path d=\"M153.1 247.5l117.8-116c4.7-4.7 12.3-4.7 17 0l7.1 7.1c4.7 4.7 4.7 12.3 0 17L192.7 256l102.2 100.4c4.7 4.7 4.7 12.3 0 17l-7.1 7.1c-4.7 4.7-12.3 4.7-17 0L153 264.5c-4.6-4.7-4.6-12.3.1-17zm-128 17l117.8 116c4.7 4.7 12.3 4.7 17 0l7.1-7.1c4.7-4.7 4.7-12.3 0-17L64.7 256l102.2-100.4c4.7-4.7 4.7-12.3 0-17l-7.1-7.1c-4.7-4.7-12.3-4.7-17 0L25 247.5c-4.6 4.7-4.6 12.3.1 17z\"/>\n            </symbol>\n            <symbol id=\"svg-trash\" viewBox=\"0 0 448 512\">\n                <path d=\"M336 64l-33.6-44.8C293.3 7.1 279.1 0 264 0h-80c-15.1 0-29.3 7.1-38.4 19.2L112 64H24C10.7 64 0 74.7 0 88v2c0 3.3 2.7 6 6 6h26v368c0 26.5 21.5 48 48 48h288c26.5 0 48-21.5 48-48V96h26c3.3 0 6-2.7 6-6v-2c0-13.3-10.7-24-24-24h-88zM184 32h80c5 0 9.8 2.4 12.8 6.4L296 64H152l19.2-25.6c3-4 7.8-6.4 12.8-6.4zm200 432c0 8.8-7.2 16-16 16H80c-8.8 0-16-7.2-16-16V96h320v368zm-176-44V156c0-6.6 5.4-12 12-12h8c6.6 0 12 5.4 12 12v264c0 6.6-5.4 12-12 12h-8c-6.6 0-12-5.4-12-12zm-80 0V156c0-6.6 5.4-12 12-12h8c6.6 0 12 5.4 12 12v264c0 6.6-5.4 12-12 12h-8c-6.6 0-12-5.4-12-12zm160 0V156c0-6.6 5.4-12 12-12h8c6.6 0 12 5.4 12 12v264c0 6.6-5.4 12-12 12h-8c-6.6 0-12-5.4-12-12z\"/>\n            </symbol>\n        </svg>\n        "; // <symbol id="svg-wikipedia" viewBox="0 0 640 512">
+  //         <path d="M640 51.2l-.3 12.2c-28.1.8-45 15.8-55.8 40.3-25 57.8-103.3 240-155.3 358.6H415l-81.9-193.1c-32.5 63.6-68.3 130-99.2 193.1-.3.3-15 0-15-.3C172 352.3 122.8 243.4 75.8 133.4 64.4 106.7 26.4 63.4.2 63.7c0-3.1-.3-10-.3-14.2h161.9v13.9c-19.2 1.1-52.8 13.3-43.3 34.2 21.9 49.7 103.6 240.3 125.6 288.6 15-29.7 57.8-109.2 75.3-142.8-13.9-28.3-58.6-133.9-72.8-160-9.7-17.8-36.1-19.4-55.8-19.7V49.8l142.5.3v13.1c-19.4.6-38.1 7.8-29.4 26.1 18.9 40 30.6 68.1 48.1 104.7 5.6-10.8 34.7-69.4 48.1-100.8 8.9-20.6-3.9-28.6-38.6-29.4.3-3.6 0-10.3.3-13.6 44.4-.3 111.1-.3 123.1-.6v13.6c-22.5.8-45.8 12.8-58.1 31.7l-59.2 122.8c6.4 16.1 63.3 142.8 69.2 156.7L559.2 91.8c-8.6-23.1-36.4-28.1-47.2-28.3V49.6l127.8 1.1.2.5z"/>
+  // </symbol>
+  // <symbol id="svg-link" viewBox="0 0 512 512">
+  //         <path d="M301.148 394.702l-79.2 79.19c-50.778 50.799-133.037 50.824-183.84 0-50.799-50.778-50.824-133.037 0-183.84l79.19-79.2a132.833 132.833 0 0 1 3.532-3.403c7.55-7.005 19.795-2.004 20.208 8.286.193 4.807.598 9.607 1.216 14.384.481 3.717-.746 7.447-3.397 10.096-16.48 16.469-75.142 75.128-75.3 75.286-36.738 36.759-36.731 96.188 0 132.94 36.759 36.738 96.188 36.731 132.94 0l79.2-79.2.36-.36c36.301-36.672 36.14-96.07-.37-132.58-8.214-8.214-17.577-14.58-27.585-19.109-4.566-2.066-7.426-6.667-7.134-11.67a62.197 62.197 0 0 1 2.826-15.259c2.103-6.601 9.531-9.961 15.919-7.28 15.073 6.324 29.187 15.62 41.435 27.868 50.688 50.689 50.679 133.17 0 183.851zm-90.296-93.554c12.248 12.248 26.362 21.544 41.435 27.868 6.388 2.68 13.816-.68 15.919-7.28a62.197 62.197 0 0 0 2.826-15.259c.292-5.003-2.569-9.604-7.134-11.67-10.008-4.528-19.371-10.894-27.585-19.109-36.51-36.51-36.671-95.908-.37-132.58l.36-.36 79.2-79.2c36.752-36.731 96.181-36.738 132.94 0 36.731 36.752 36.738 96.181 0 132.94-.157.157-58.819 58.817-75.3 75.286-2.651 2.65-3.878 6.379-3.397 10.096a163.156 163.156 0 0 1 1.216 14.384c.413 10.291 12.659 15.291 20.208 8.286a131.324 131.324 0 0 0 3.532-3.403l79.19-79.2c50.824-50.803 50.799-133.062 0-183.84-50.802-50.824-133.062-50.799-183.84 0l-79.2 79.19c-50.679 50.682-50.688 133.163 0 183.851z"/>
+  // </symbol>
+  //     <symbol id="svg-external-link" viewBox="0 0 448 512">
+  //     <path d="M400 32H48C21.49 32 0 53.49 0 80v352c0 26.51 21.49 48 48 48h352c26.51 0 48-21.49 48-48V80c0-26.51-21.49-48-48-48zm16 400c0 8.822-7.178 16-16 16H48c-8.822 0-16-7.178-16-16V80c0-8.822 7.178-16 16-16h352c8.822 0 16 7.178 16 16v352zM99.515 374.828c-4.686-4.686-4.686-12.284 0-16.971l195.15-195.15-.707-.707-89.958.342c-6.627 0-12-5.373-12-12v-9.999c0-6.628 5.372-12 12-12L340 128c6.627 0 12 5.372 12 12l-.343 136c0 6.627-5.373 12-12 12h-9.999c-6.627 0-12-5.373-12-12l.342-89.958-.707-.707-195.15 195.15c-4.686 4.686-12.284 4.686-16.971 0l-5.657-5.657z"/>
+  // </symbol>
+  // <symbol id="svg-external-link" viewBox="0 0 512 512">
+  //     <path d="M256 40c118.621 0 216 96.075 216 216 0 119.291-96.61 216-216 216-119.244 0-216-96.562-216-216 0-119.203 96.602-216 216-216m0-32C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm-36 344h12V232h-12c-6.627 0-12-5.373-12-12v-8c0-6.627 5.373-12 12-12h48c6.627 0 12 5.373 12 12v140h12c6.627 0 12 5.373 12 12v8c0 6.627-5.373 12-12 12h-72c-6.627 0-12-5.373-12-12v-8c0-6.627 5.373-12 12-12zm36-240c-17.673 0-32 14.327-32 32s14.327 32 32 32 32-14.327 32-32-14.327-32-32-32z"/>
+  // </symbol>
+
+  var markup = svgIcons; // Auto-populate the ALT_KEYS table
+
+  ALT_KEYS_BASE['foreground-color'] = [];
+  var _iteratorNormalCompletion4 = true;
+  var _didIteratorError4 = false;
+  var _iteratorError4 = undefined;
+
+  try {
+    for (var _iterator4 = _color2.default.LINE_COLORS[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
+      var color = _step4.value;
+      ALT_KEYS_BASE['foreground-color'].push({
+        classes: 'small-button',
+        content: '<span style="border-radius:50%;width:32px;height:32px; box-sizing: border-box; border: 3px solid ' + color + '"></span>',
+        command: '["applyStyle",{"color":"' + color + '"}]'
+      });
+    }
+  } catch (err) {
+    _didIteratorError4 = true;
+    _iteratorError4 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
+        _iterator4.return();
+      }
+    } finally {
+      if (_didIteratorError4) {
+        throw _iteratorError4;
+      }
+    }
+  }
+
+  ALT_KEYS_BASE['background-color'] = [];
+  var _iteratorNormalCompletion5 = true;
+  var _didIteratorError5 = false;
+  var _iteratorError5 = undefined;
+
+  try {
+    for (var _iterator5 = _color2.default.AREA_COLORS[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
+      var _color = _step5.value;
+      ALT_KEYS_BASE['background-color'].push({
+        classes: 'small-button',
+        content: '<span style="border-radius:50%;width:32px;height:32px; background:' + _color + '"></span>',
+        command: '["applyStyle",{"backgroundColor":"' + _color + '"}]'
+      });
+    }
+  } catch (err) {
+    _didIteratorError5 = true;
+    _iteratorError5 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
+        _iterator5.return();
+      }
+    } finally {
+      if (_didIteratorError5) {
+        throw _iteratorError5;
+      }
+    }
+  }
+
+  ALT_KEYS = {};
+  ALT_KEYS = Object.assign({}, ALT_KEYS_BASE);
+
+  for (var key in ALT_KEYS) {
+    if (ALT_KEYS.hasOwnProperty(key)) {
+      ALT_KEYS[key] = ALT_KEYS[key].slice();
+    }
+  }
+
+  var upperAlpha = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
+  var lowerAlpha = 'abcdefghijklmnopqrstuvwxyz';
+  var digits = '0123456789';
+
+  for (var i = 0; i < 26; i++) {
+    var _key = upperAlpha[i];
+    if (!ALT_KEYS[_key]) ALT_KEYS[_key] = [];
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathbb{' + _key + '}',
+      aside: 'blackboard',
+      insert: '\\mathbb{' + _key + '}'
+    });
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathbf{' + _key + '}',
+      aside: 'bold',
+      insert: '\\mathbf{' + _key + '}'
+    });
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathsf{' + _key + '}',
+      aside: 'sans',
+      insert: '\\mathsf{' + _key + '}'
+    });
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathtt{' + _key + '}',
+      aside: 'monospace',
+      insert: '\\mathtt{' + _key + '}'
+    });
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathcal{' + _key + '}',
+      aside: 'script',
+      insert: '\\mathcal{' + _key + '}'
+    });
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathfrak{' + _key + '}',
+      aside: 'fraktur',
+      insert: '\\mathfrak{' + _key + '}'
+    });
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathbb{' + lowerAlpha[i] + '}',
+      aside: 'blackboard',
+      insert: '\\mathbb{' + lowerAlpha[i] + '}'
+    });
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathbf{' + lowerAlpha[i] + '}',
+      aside: 'bold',
+      insert: '\\mathbf{' + lowerAlpha[i] + '}'
+    });
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathsf{' + lowerAlpha[i] + '}',
+      aside: 'sans',
+      insert: '\\mathsf{' + lowerAlpha[i] + '}'
+    });
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathcal{' + lowerAlpha[i] + '}',
+      aside: 'script',
+      insert: '\\mathcal{' + lowerAlpha[i] + '}'
+    });
+
+    ALT_KEYS[_key].unshift({
+      latex: '\\mathfrak{' + lowerAlpha[i] + '}',
+      aside: 'fraktur',
+      insert: '\\mathfrak{' + lowerAlpha[i] + '}'
+    });
+  }
+
+  for (var _i = 0; _i <= 26; _i++) {
+    var _key2 = lowerAlpha[_i];
+    if (!ALT_KEYS[_key2]) ALT_KEYS[_key2] = [];
+
+    ALT_KEYS[_key2].unshift({
+      latex: '\\mathsf{' + _key2 + '}',
+      aside: 'sans',
+      insert: '\\mathbb{' + _key2 + '}'
+    });
+
+    ALT_KEYS[_key2].unshift({
+      latex: '\\mathbf{' + _key2 + '}',
+      aside: 'bold',
+      insert: '\\mathbf{' + _key2 + '}'
+    });
+
+    ALT_KEYS[_key2].unshift({
+      latex: '\\mathtt{' + _key2 + '}',
+      aside: 'monospace',
+      insert: '\\mathtt{' + _key2 + '}'
+    });
+
+    ALT_KEYS[_key2].unshift({
+      latex: '\\mathfrak{' + _key2 + '}',
+      aside: 'fraktur',
+      insert: '\\mathfrak{' + _key2 + '}'
+    });
+  }
+
+  for (var _i2 = 0; _i2 < 10; _i2++) {
+    var _key3 = digits[_i2];
+    if (!ALT_KEYS[_key3]) ALT_KEYS[_key3] = []; // The mathbb font does not appear to include digits,
+    // although it's supposed to.
+    // ALT_KEYS[key].push({
+    //         latex: '\\underset{\\textsf{\\footnotesize blackboard}}{\\mathbb{' + key + '}}',
+    //         insert: '\\mathbb{' + key + '}}'});
+
+    ALT_KEYS[_key3].unshift({
+      latex: '\\mathbf{' + _key3 + '}',
+      aside: 'bold',
+      insert: '\\mathbf{' + _key3 + '}'
+    });
+
+    ALT_KEYS[_key3].unshift({
+      latex: '\\mathsf{' + _key3 + '}',
+      aside: 'sans',
+      insert: '\\mathsf{' + _key3 + '}'
+    });
+
+    ALT_KEYS[_key3].unshift({
+      latex: '\\mathtt{' + _key3 + '}',
+      aside: 'monospace',
+      insert: '\\mathtt{' + _key3 + '}'
+    });
+
+    ALT_KEYS[_key3].unshift({
+      latex: '\\mathcal{' + _key3 + '}',
+      aside: 'script',
+      insert: '\\mathcal{' + _key3 + '}'
+    });
+
+    ALT_KEYS[_key3].unshift({
+      latex: '\\mathfrak{' + _key3 + '}',
+      aside: 'fraktur',
+      insert: '\\mathfrak{' + _key3 + '}'
+    });
+  }
+
+  var keyboardIDs = mf.config.virtualKeyboards;
+
+  if (!keyboardIDs) {
+    keyboardIDs = 'all';
+  }
+
+  keyboardIDs = keyboardIDs.replace(/\ball\b/i, 'numeric roman greek functions command');
+  var layers = Object.assign({}, LAYERS, mf.config.customVirtualKeyboardLayers || {});
+  var keyboards = Object.assign({}, KEYBOARDS, mf.config.customVirtualKeyboards || {});
+  var keyboardList = keyboardIDs.replace(/\s+/g, ' ').split(' ');
+  var _iteratorNormalCompletion6 = true;
+  var _didIteratorError6 = false;
+  var _iteratorError6 = undefined;
+
+  try {
+    for (var _iterator6 = keyboardList[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
+      var keyboard = _step6.value;
+
+      if (!keyboards[keyboard]) {
+        console.error('Unknown virtual keyboard "' + keyboard + '"');
+        break;
+      } // Add the default layer to the list of layers,
+      // and make sure the list of layers is uniquified.
+
+
+      var keyboardLayers = keyboards[keyboard].layers || [];
+
+      if (keyboards[keyboard].layer) {
+        keyboardLayers.push(keyboards[keyboard].layer);
+      }
+
+      keyboardLayers = Array.from(new Set(keyboardLayers));
+      var _iteratorNormalCompletion7 = true;
+      var _didIteratorError7 = false;
+      var _iteratorError7 = undefined;
+
+      try {
+        for (var _iterator7 = keyboardLayers[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
+          var layer = _step7.value;
+
+          if (!layers[layer]) {
+            console.error('Unknown virtual keyboard layer: "' + layer + '"');
+            break;
+          }
+
+          if (_typeof(layers[layer]) === 'object') {
+            // Process JSON layer to web element based layer.
+            var tempLayer = "";
+
+            if (layers[layer].styles) {
+              tempLayer += "<style>".concat(layers[layer].styles, "</style>");
+            }
+
+            if (layers[layer].backdrop) {
+              tempLayer += "<div class='".concat(layers[layer].backdrop, "'>");
+            }
+
+            if (layers[layer].container) {
+              tempLayer += "<div class='".concat(layers[layer].container, "'>");
+            }
+
+            if (layers[layer].rows) {
+              tempLayer += "<div class='rows'>";
+              var _iteratorNormalCompletion8 = true;
+              var _didIteratorError8 = false;
+              var _iteratorError8 = undefined;
+
+              try {
+                for (var _iterator8 = layers[layer].rows[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
+                  var row = _step8.value;
+                  tempLayer += "<ul>";
+                  var _iteratorNormalCompletion9 = true;
+                  var _didIteratorError9 = false;
+                  var _iteratorError9 = undefined;
+
+                  try {
+                    for (var _iterator9 = row[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
+                      var col = _step9.value;
+                      tempLayer += "<li";
+
+                      if (col.class) {
+                        tempLayer += " class=\"".concat(col.class, "\"");
+                      }
+
+                      if (col.key) {
+                        tempLayer += " data-key=\"".concat(col.key, "\"");
+                      }
+
+                      if (col.command) {
+                        if (typeof col.command === 'string') {
+                          tempLayer += " data-command='\"".concat(col.command, "\"'");
+                        } else {
+                          tempLayer += " data-command='";
+                          tempLayer += JSON.stringify(col.command);
+                          tempLayer += "'";
+                        }
+                      }
+
+                      if (col.insert) {
+                        tempLayer += " data-insert=\"".concat(col.insert, "\"");
+                      }
+
+                      if (col.latex) {
+                        tempLayer += " data-latex=\"".concat(col.latex, "\"");
+                      }
+
+                      if (col.aside) {
+                        tempLayer += " data-aside=\"".concat(col.aside, "\"");
+                      }
+
+                      if (col.altKeys) {
+                        tempLayer += " data-alt-keys=\"".concat(col.altKeys, "\"");
+                      }
+
+                      if (col.shifted) {
+                        tempLayer += " data-shifted=\"".concat(col.shifted, "\"");
+                      }
+
+                      if (col.shiftedCommand) {
+                        tempLayer += " data-shifted-command=\"".concat(col.shiftedCommand, "\"");
+                      }
+
+                      tempLayer += ">".concat(col.label ? col.label : '', "</li>");
+                    }
+                  } catch (err) {
+                    _didIteratorError9 = true;
+                    _iteratorError9 = err;
+                  } finally {
+                    try {
+                      if (!_iteratorNormalCompletion9 && _iterator9.return != null) {
+                        _iterator9.return();
+                      }
+                    } finally {
+                      if (_didIteratorError9) {
+                        throw _iteratorError9;
+                      }
+                    }
+                  }
+
+                  tempLayer += "</ul>";
+                }
+              } catch (err) {
+                _didIteratorError8 = true;
+                _iteratorError8 = err;
+              } finally {
+                try {
+                  if (!_iteratorNormalCompletion8 && _iterator8.return != null) {
+                    _iterator8.return();
+                  }
+                } finally {
+                  if (_didIteratorError8) {
+                    throw _iteratorError8;
+                  }
+                }
+              }
+
+              tempLayer += "</div>";
+
+              if (layers[layer].container) {
+                tempLayer += "</div'>";
+              }
+
+              if (layers[layer].backdrop) {
+                tempLayer += "</div'>";
+              }
+            }
+
+            layers[layer] = tempLayer;
+          }
+
+          markup += "<div tabindex=\"-1\" class='keyboard-layer' id='" + layer + "'>";
+          markup += makeKeyboardToolbar(mf, keyboardIDs, keyboard);
+          var layerMarkup = typeof layers[layer] === 'function' ? layers[layer]() : layers[layer]; // A layer can contain 'shortcuts' (i.e. <row> tags) that need to
+          // be expanded
+
+          markup += expandLayerMarkup(mf, layerMarkup);
+          markup += '</div>';
+        }
+      } catch (err) {
+        _didIteratorError7 = true;
+        _iteratorError7 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
+            _iterator7.return();
+          }
+        } finally {
+          if (_didIteratorError7) {
+            throw _iteratorError7;
+          }
+        }
+      }
+    }
+  } catch (err) {
+    _didIteratorError6 = true;
+    _iteratorError6 = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
+        _iterator6.return();
+      }
+    } finally {
+      if (_didIteratorError6) {
+        throw _iteratorError6;
+      }
+    }
+  }
+
+  var result = document.createElement('div');
+  result.className = 'ML__keyboard';
+
+  if (theme) {
+    result.classList.add(theme);
+  } else if (mf.config.virtualKeyboardTheme) {
+    result.classList.add(mf.config.virtualKeyboardTheme);
+  } else if (/android|cros/i.test(navigator.userAgent)) {
+    result.classList.add('material');
+  }
+
+  result.innerHTML = markup; // Attach the element handlers
+
+  makeKeycap(mf, result.querySelectorAll('.keycap, .action, .fnbutton, .bigfnbutton'));
+  var elList = result.getElementsByClassName('layer-switch');
+
+  for (var _i3 = 0; _i3 < elList.length; ++_i3) {
+    if (elList[_i3].classList.contains('shift')) {
+      // This is a potential press-and-hold layer switch
+      mf._attachButtonHandlers(elList[_i3], {
+        // When the modifier is initially pressed, we will shift the labels
+        // (if available)
+        pressed: ['shiftKeyboardLayer', 'shift'],
+        // If the key is released before a delay, we switch to the target layer
+        default: ['switchKeyboardLayer', elList[_i3].getAttribute('data-layer')],
+        // If the key is released after a longer delay, we restore the
+        // shifted labels
+        pressAndHoldEnd: 'unshiftKeyboardLayer'
+      });
+    } else {
+      // This is a simple layer switch
+      mf._attachButtonHandlers(elList[_i3], {
+        default: ['switchKeyboardLayer', elList[_i3].getAttribute('data-layer')]
+      });
+    }
+  } // Select the first keyboard as the initial one.
+
+
+  var layerElements = result.getElementsByClassName('keyboard-layer');
+  Array.from(layerElements).forEach(function (x) {
+    x.addEventListener('mousedown', function (evt) {
+      evt.preventDefault();
+      evt.stopPropagation();
+    });
+    x.addEventListener('touchstart', function (evt) {
+      evt.preventDefault();
+      evt.stopPropagation();
+    });
+  });
+  layerElements[0].classList.add('is-visible'); // Listen to know when the mouse has been released without being
+  // captured to remove the alternate keys panel and the shifted state of the
+  // keyboard.
+
+  window.addEventListener('mouseup', function () {
+    mf.hideAlternateKeys_();
+    mf.unshiftKeyboardLayer_();
+  });
+  window.addEventListener('blur', function () {
+    mf.hideAlternateKeys_();
+    mf.unshiftKeyboardLayer_();
+  });
+  window.addEventListener('touchend', function () {
+    mf.hideAlternateKeys_();
+    mf.unshiftKeyboardLayer_();
+  });
+  window.addEventListener('touchcancel', function () {
+    mf.hideAlternateKeys_();
+    mf.unshiftKeyboardLayer_();
+  });
+  return result;
+}
+
+var _default = {
+  make: make,
+  makeKeycap: makeKeycap
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/l10n.js b/dist/editor/l10n.js
new file mode 100644
index 000000000..a3cb97867
--- /dev/null
+++ b/dist/editor/l10n.js
@@ -0,0 +1,243 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.l10n = l10n;
+exports.default = void 0;
+
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+function l10n(s) {
+  var language = l10n.locale.substring(0, 2);
+  var result = ''; // Attempt to find a match for the current locale
+
+  if (l10n.strings[l10n.locale]) result = l10n.strings[l10n.locale][s]; // If none is found, attempt to find a match for the language
+
+  if (!result && l10n.strings[language]) result = l10n.strings[language][s]; // If none is found, try english
+
+  if (!result) result = l10n.strings['en'][s]; // If that didn't work, use the key...
+
+  if (!result) result = s;
+  return result;
+}
+
+l10n.plural = function (value, s, options) {
+  options = options || {};
+  options.type = options.type || 'cardinal';
+  var language = l10n.locale.substring(0, 2);
+  var rules = options.type === 'ordinal' ? l10n.ordinal : l10n.cardinal;
+  var rule = options.type === 'ordinal' ? l10n._ordinalPluralCategories.indexOf(rules.select(value)) : l10n._cardinalPluralCategories.indexOf(rules.select(value));
+  var result;
+  if (l10n.strings[l10n.locale]) result = l10n.strings[l10n.locale][s];
+  if (!result && l10n.strings[language]) result = l10n.strings[language][s];
+
+  if (!result) {
+    result = l10n.strings['en'][s];
+    if (!result) result = s;
+
+    if (options.type === 'ordinal') {
+      rule = l10n._ordinalPluralCategories.indexOf(l10n._ordinalEnglish.select(value));
+    } else {
+      rule = l10n._cardinalPluralCategories.indexOf(l10n._cardinalEnglish.select(value));
+    }
+  }
+
+  return result.split(';')[rule] || result.split(';')[0];
+};
+/**
+ * Two forms for this function:
+ * - merge(locale, strings)
+ * Merge a dictionary of keys -> values for the specified locale
+ * - merge(strings)
+ * Merge a dictionary of locale code -> dictionary of keys -> values
+ * 
+ */
+
+
+l10n.merge = function (locale, strings) {
+  if (locale && strings) {
+    var savedLocale = l10n._locale;
+    l10n.locale = locale; // Load the necessary json file
+
+    l10n.strings[locale] = _objectSpread({}, l10n.strings[locale], strings);
+    l10n.locale = savedLocale;
+  } else if (locale && !strings) {
+    strings = locale;
+
+    for (var l in strings) {
+      if (strings.hasOwnProperty(l)) {
+        l10n.merge(l, strings[l]);
+      }
+    }
+  }
+}; // Add getter and setter for the _locale property of l10n
+
+
+Object.defineProperty(l10n, 'locale', {
+  set: function set(locale) {
+    l10n._locale = locale;
+    l10n._ordinal = null;
+    l10n._cardinal = null;
+  },
+  get: function get() {
+    // Use the browser defined language as the default language,
+    // "english" if not running in a browser (node.js)
+    if (!l10n._locale) {
+      // Use the setter, which will load the necessary .json files.
+      l10n._locale = typeof navigator === 'undefined' ? 'en' : navigator.language.slice(0, 5);
+    }
+
+    return l10n._locale;
+  }
+});
+Object.defineProperty(l10n, 'ordinal', {
+  get: function get() {
+    if (!l10n._ordinal) {
+      l10n._ordinalEnglish = new Intl.PluralRules('en', {
+        type: 'ordinal'
+      });
+      l10n._ordinalEnglishPluralCategories = l10n._ordinalEnglish.resolvedOptions().pluralCategories;
+      l10n._ordinal = new Intl.PluralRules(l10n.locale, {
+        type: 'ordinal'
+      });
+      l10n._ordinalPluralCategories = l10n._ordinal.resolvedOptions().pluralCategories; //    "zero", "one", "two", "few", "many" and "other"
+    }
+
+    return l10n._ordinal;
+  }
+});
+Object.defineProperty(l10n, 'cardinal', {
+  get: function get() {
+    if (!l10n._cardinal) {
+      l10n._cardinalEnglish = new Intl.PluralRules('en', {
+        type: 'cardinal'
+      });
+      l10n._cardinalEnglishPluralCategories = l10n._cardinalEnglish.resolvedOptions().pluralCategories;
+      l10n._cardinal = new Intl.PluralRules(l10n.locale, {
+        type: 'cardinal'
+      });
+      l10n._cardinaPluralCategories = l10n._ordinal.resolvedOptions().pluralCategories;
+    }
+
+    return l10n._cardinal;
+  }
+});
+l10n.strings = {
+  "en": {
+    "keyboard.tooltip.functions": "Functions",
+    "keyboard.tooltip.greek": "Greek Letters",
+    "keyboard.tooltip.command": "LaTeX Command Mode",
+    "keyboard.tooltip.numeric": "Numeric",
+    "keyboard.tooltip.roman": "Symbols and Roman Letters",
+    "tooltip.copy to clipboard": "Copy to Clipboard",
+    "tooltip.redo": "Redo",
+    "tooltip.toggle virtual keyboard": "Toggle Virtual Keyboard",
+    "tooltip.undo": "Undo"
+  },
+  "ar": {
+    "keyboard.tooltip.functions": "مهام",
+    "keyboard.tooltip.greek": "حروف يونانية",
+    "keyboard.tooltip.command": "حالة تلقي الأوامر اللاتك",
+    "keyboard.tooltip.numeric": "الرقمية",
+    "keyboard.tooltip.roman": "رموز الاحرف الرومانية",
+    "tooltip.copy to clipboard": "نسخ إلى الحافظة",
+    "tooltip.redo": "الإعادة",
+    "tooltip.toggle virtual keyboard": "تبديل لوحة المفاتيح الإفتراضية",
+    "tooltip.undo": "إلغاء"
+  },
+  "de": {
+    "keyboard.tooltip.functions": "Funktionen",
+    "keyboard.tooltip.greek": "Griechische Buchstaben",
+    "keyboard.tooltip.command": "LaTeX-Befehlsmodus",
+    "keyboard.tooltip.numeric": "Numerisch",
+    "keyboard.tooltip.roman": "Symbole und römische Buchstaben",
+    "tooltip.copy to clipboard": "In die Zwischenablage kopieren",
+    "tooltip.redo": "Wiederholen",
+    "tooltip.toggle virtual keyboard": "Virtuelle Tastatur umschalten",
+    "tooltip.undo": "Widerrufen"
+  },
+  "es": {
+    "keyboard.tooltip.functions": "Funciones",
+    "keyboard.tooltip.greek": "Letras griegas",
+    "keyboard.tooltip.command": "Modo Comando LaTeX",
+    "keyboard.tooltip.numeric": "Numérico",
+    "keyboard.tooltip.roman": "Símbolos y letras romanas",
+    "tooltip.copy to clipboard": "Copiar al portapapeles",
+    "tooltip.redo": "Rehacer",
+    "tooltip.toggle virtual keyboard": "Alternar teclado virtual",
+    "tooltip.undo": "Deshacer"
+  },
+  "fa": {
+    "keyboard.tooltip.functions": "توابع",
+    "keyboard.tooltip.greek": "حروف یونانی",
+    "keyboard.tooltip.command": "حالت دستور لاتک",
+    "keyboard.tooltip.numeric": "عددی",
+    "keyboard.tooltip.roman": "علائم و حروف لاتین",
+    "tooltip.copy to clipboard": "کپی به کلیپبورد",
+    "tooltip.redo": "بازگشت به بعد",
+    "tooltip.toggle virtual keyboard": "نمایش/نهفتن کیبورد مجازی",
+    "tooltip.undo": "بازگشت به قبل"
+  },
+  "fr": {
+    "keyboard.tooltip.functions": "Fonctions",
+    "keyboard.tooltip.greek": "Lettres grecques",
+    "keyboard.tooltip.command": "Mode de commandes LaTeX",
+    "keyboard.tooltip.numeric": "Numérique",
+    "keyboard.tooltip.roman": "Lettres et symboles romains",
+    "tooltip.copy to clipboard": "Copier dans le presse-papiers",
+    "tooltip.redo": "Rétablir",
+    "tooltip.toggle virtual keyboard": "Afficher/Masquer le clavier virtuel",
+    "tooltip.undo": "Annuler"
+  },
+  "it": {
+    "keyboard.tooltip.functions": "Funzioni",
+    "keyboard.tooltip.greek": "Lettere greche",
+    "keyboard.tooltip.command": "Modalità di comando LaTeX",
+    "keyboard.tooltip.numeric": "Numerico",
+    "keyboard.tooltip.roman": "Simboli e lettere romane",
+    "tooltip.copy to clipboard": "Copia negli appunti",
+    "tooltip.redo": "Rifare",
+    "tooltip.toggle virtual keyboard": "Attiva / disattiva la tastiera virtuale",
+    "tooltip.undo": "Disfare"
+  },
+  "ja": {
+    "keyboard.tooltip.functions": "関数",
+    "keyboard.tooltip.greek": "ギリシャ文字",
+    "keyboard.tooltip.command": "LaTeXコマンドモード",
+    "keyboard.tooltip.numeric": "数値",
+    "keyboard.tooltip.roman": "記号とローマ字",
+    "tooltip.copy to clipboard": "クリップボードにコピー",
+    "tooltip.redo": "やり直し",
+    "tooltip.toggle virtual keyboard": "仮想キーボードの切り替え",
+    "tooltip.undo": "元に戻す"
+  },
+  "pl": {
+    "keyboard.tooltip.functions": "Funkcje",
+    "keyboard.tooltip.greek": "Litery greckie",
+    "keyboard.tooltip.command": "Tryb poleceń LaTeX",
+    "keyboard.tooltip.numeric": "Numeryczne",
+    "keyboard.tooltip.roman": "Symbole i litery rzymskie",
+    "tooltip.copy to clipboard": "Kopiuj do Schowka",
+    "tooltip.redo": "Przywróć",
+    "tooltip.toggle virtual keyboard": "Przełącz wirtualną klawiaturę",
+    "tooltip.undo": "Cofnij"
+  },
+  "ru": {
+    "keyboard.tooltip.functions": "Функции",
+    "keyboard.tooltip.greek": "Греческие буквы",
+    "keyboard.tooltip.command": "Режим командной строки LaTeX",
+    "keyboard.tooltip.numeric": "числовой",
+    "keyboard.tooltip.roman": "Символы и римские буквы",
+    "tooltip.copy to clipboard": "Скопировать в буфер обмена",
+    "tooltip.redo": "переделывать",
+    "tooltip.toggle virtual keyboard": "Переключить виртуальную клавиатуру",
+    "tooltip.undo": "расстегивать"
+  }
+};
+var _default = {
+  l10n: l10n
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/editor/outputASCIIMath.js b/dist/editor/outputASCIIMath.js
new file mode 100644
index 000000000..60fed5c47
--- /dev/null
+++ b/dist/editor/outputASCIIMath.js
@@ -0,0 +1,284 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.toASCIIMath = toASCIIMath;
+exports.default = void 0;
+var SPECIAL_IDENTIFIERS = {
+  "\u2212": '-',
+  // MINUS SIGN
+  '-': '-',
+  '\\alpha': 'alpha',
+  '\\beta': 'beta',
+  '\\gamma': 'gamma',
+  '\\delta': 'delta',
+  '\\epsilon': 'epsilon',
+  '\\varepsilon': 'varepsilon',
+  '\\zeta': 'zeta',
+  '\\eta': 'eta',
+  '\\theta': 'theta',
+  '\\vartheta': 'vartheta',
+  '\\iota': 'iota',
+  '\\kappa': 'kappa',
+  '\\lambda': 'lambda',
+  '\\mu': 'mu',
+  '\\nu': 'nu',
+  '\\xi': 'xi',
+  '\\pi': 'pi',
+  '\\rho': 'rho',
+  '\\sigma': 'sigma',
+  '\\tau': 'tau',
+  "\\upsilon": 'upsilon',
+  '\\phi': 'phi',
+  '\\varphi': 'varphi',
+  '\\chi': 'chi',
+  '\\psi': 'psi',
+  '\\omega': 'omega',
+  '\\Gamma': 'Gamma',
+  '\\Delta': 'Delta',
+  '\\Theta': 'Theta',
+  '\\Lambda': 'Lambda',
+  '\\Xi': 'Xi',
+  '\\Pi': 'Pi',
+  '\\Sigma': 'Sigma',
+  '\\Phi': 'Phi',
+  '\\Psi': 'Psi',
+  '\\Omega': 'Omega'
+};
+var SPECIAL_OPERATORS = {
+  '\\pm': '+-',
+  '\\times': 'xx',
+  '\\colon': ':',
+  '\\vert': '|',
+  '\\Vert': '||',
+  '\\mid': '|',
+  '\\lbrace': '{',
+  '\\rbrace': '}',
+  '\\langle': '(:',
+  '\\rangle': ':)' // '\\lfloor': '\u230a',
+  // '\\rfloor': '\u230b',
+  // '\\lceil': '\u2308',
+  // '\\rceil': '\u2309',
+  // '\\vec': '&#x20d7;',
+  // '\\acute': '&#x00b4;',
+  // '\\grave': '&#x0060;',
+  // '\\dot': '&#x02d9;',
+  // '\\ddot': '&#x00a8;',
+  // '\\tilde': '&#x007e;',
+  // '\\bar': '&#x00af;',
+  // '\\breve': '&#x02d8;',
+  // '\\check': '&#x02c7;',
+  // '\\hat': '&#x005e;'
+
+};
+
+function toASCIIMath(atom, options) {
+  if (!atom) return '';
+
+  if (Array.isArray(atom)) {
+    var _result = '';
+    if (atom.length === 0) return '';
+    if (atom[0].type === 'first') atom.shift();
+
+    if (atom[0].mode === 'text') {
+      // Text mode... put it in (ASCII) quotes
+      var i = 0;
+      _result = '"';
+
+      while (atom[i] && atom[i].mode === 'text') {
+        _result += atom[i].body;
+        i++;
+      }
+
+      _result += '"' + toASCIIMath(atom.slice(i), options);
+    } else {
+      var _i = 0;
+
+      while (atom[_i] && atom[_i].mode === 'math') {
+        _result += toASCIIMath(atom[_i], options);
+        _i++;
+      }
+
+      _result += toASCIIMath(atom.slice(_i), options);
+    }
+
+    return _result.trim();
+  }
+
+  var result = '';
+  var command = atom.latex ? atom.latex.trim() : null;
+  var m;
+
+  switch (atom.type) {
+    case 'group':
+    case 'root':
+      result = toASCIIMath(atom.body, options);
+      break;
+
+    case 'array':
+      break;
+
+    case 'genfrac':
+      if (atom.leftDelim || atom.rightDelim) {
+        result += atom.leftDelim === '.' || !atom.leftDelim ? '{:' : atom.leftDelim;
+      }
+
+      if (atom.hasBarLine) {
+        result += '(';
+        result += toASCIIMath(atom.numer, options);
+        result += ')/(';
+        result += toASCIIMath(atom.denom, options);
+        result += ')';
+      } else {
+        // No bar line, i.e. \choose, etc...
+        result += '(' + toASCIIMath(atom.numer, options) + '),';
+        result += '(' + toASCIIMath(atom.denom, options) + ')';
+      }
+
+      if (atom.leftDelim || atom.rightDelim) {
+        result += atom.rightDelim === '.' || !atom.rightDelim ? '{:' : atom.rightDelim;
+      }
+
+      break;
+
+    case 'surd':
+      if (atom.index) {
+        result += 'root(' + toASCIIMath(atom.index, options) + ')(' + toASCIIMath(atom.body, options) + ')';
+      } else {
+        result += 'sqrt(' + toASCIIMath(atom.body, options) + ')';
+      }
+
+      break;
+
+    case 'leftright':
+      result += atom.leftDelim === '.' || !atom.leftDelim ? '{:' : atom.leftDelim;
+      result += toASCIIMath(atom.body, options);
+      result += atom.rightDelim === '.' || !atom.rightDelim ? '{:' : atom.rightDelim;
+      break;
+
+    case 'sizeddelim':
+    case 'delim':
+      // result += '<mo separator="true"' + makeID(atom.id, options) + '>' + (SPECIAL_OPERATORS[atom.delim] || atom.delim) + '</mo>';
+      break;
+
+    case 'accent':
+      break;
+
+    case 'line':
+    case 'overlap':
+      break;
+
+    case 'overunder':
+      break;
+
+    case 'mord':
+      // @todo, deal with some special identifiers: \alpha, etc...
+      result = SPECIAL_IDENTIFIERS[command] || command || (typeof atom.body === 'string' ? atom.body : '');
+      if (result[0] === '\\') result += '';
+      m = command ? command.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) : null;
+
+      if (m) {
+        // It's a \char command
+        result = String.fromCharCode(parseInt('0x' + m[1]));
+      } else if (result.length > 0 && result.charAt(0) === '\\') {
+        // atom is an identifier with no special handling. Use the
+        // Unicode value
+        if (typeof atom.body === 'string') {
+          result = atom.body.charAt(0);
+        } else {
+          result = atom.latex;
+        }
+      } // result = '<mi' + variant + makeID(atom.id, options) + '>' + xmlEscape(result) + '</mi>';
+
+
+      break;
+
+    case 'mbin':
+    case 'mrel':
+    case 'textord':
+    case 'minner':
+      if (command && SPECIAL_IDENTIFIERS[command]) {
+        // Some 'textord' are actually identifiers. Check them here.
+        result = SPECIAL_IDENTIFIERS[command];
+      } else if (command && SPECIAL_OPERATORS[command]) {
+        result = SPECIAL_OPERATORS[command];
+      } else {
+        result = atom.body;
+      }
+
+      break;
+
+    case 'mopen':
+    case 'mclose':
+      result += atom.body;
+      break;
+
+    case 'mpunct':
+      result = SPECIAL_OPERATORS[command] || command;
+      break;
+
+    case 'mop':
+      if (atom.body !== "\u200B") {
+        // Not ZERO-WIDTH
+        result = '';
+
+        if (command === '\\operatorname') {
+          result += atom.body;
+        } else {
+          result += atom.body || command;
+        }
+
+        result += ' ';
+      }
+
+      break;
+
+    case 'mathstyle':
+      break;
+
+    case 'box':
+      break;
+
+    case 'spacing':
+      break;
+
+    case 'enclose':
+      break;
+
+    case 'space':
+      result = ' ';
+      break;
+  } // Subscripts before superscripts (according to the ASCIIMath spec)
+
+
+  if (atom.subscript) {
+    result += '_';
+    var arg = toASCIIMath(atom.subscript, options);
+
+    if (arg.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(arg)) {
+      result += '(' + arg + ')';
+    } else {
+      result += arg;
+    }
+  }
+
+  if (atom.superscript) {
+    result += '^';
+
+    var _arg = toASCIIMath(atom.superscript, options);
+
+    if (_arg.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(_arg)) {
+      result += '(' + _arg + ')';
+    } else {
+      result += _arg;
+    }
+  }
+
+  return result;
+}
+
+var _default = {
+  toASCIIMath: toASCIIMath
+};
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/mathlive.js b/dist/mathlive.js
index 1b80b1806..4aa2cc905 100644
--- a/dist/mathlive.js
+++ b/dist/mathlive.js
@@ -1 +1,917 @@
-var global,factory;global=this,factory=function(){const t=0,e=1,i=2,s=3,a=4,o=5,n=6,r=7,l=8,c=9,h=10,d=11,p=12;function m(t,e){e=e||0;const i=t.charCodeAt(e);if(55296<=i&&i<=56319&&e<t.length-1){const s=i,a=t.charCodeAt(e+1);return 56320<=a&&a<=57343?1024*(s-55296)+(a-56320)+65536:s}if(56320<=i&&i<=57343&&e>=1){const s=t.charCodeAt(e-1),a=i;return 55296<=s&&s<=56319?1024*(s-55296)+(a-56320)+65536:a}return i}function u(u,g){if((g=g||0)<0)return 0;if(g>=u.length-1)return u.length;let y=f(m(u,g));for(let k=g+1;k<u.length;k++){if(55296<=u.charCodeAt(k-1)&&u.charCodeAt(k-1)<=56319&&56320<=u.charCodeAt(k)&&u.charCodeAt(k)<=57343)continue;const g=f(m(u,k));if(x=g,!((b=y)===d&&x===p||b===s&&x===d||b===d&&x===s||b===t&&x===e||b!==i&&b!==t&&b!==e&&x!==i&&x!==t&&x!==e&&(b===n&&(x===n||x===r||x===c||x===h)||!(b!==c&&b!==r||x!==r&&x!==l)||(b===h||b===l)&&x===l||b===a&&x===a||x===s||x===o)))return k;y=g}var b,x;return u.length}function f(m){return 13===m?t:10===m?e:0<=m&&m<=9||11<=m&&m<=12||14<=m&&m<=31||127<=m&&m<=159||173===m||1536<=m&&m<=1541||1564===m||1757===m||1807===m||6158===m||8203===m||8206<=m&&m<=8207||8232===m||8233===m||8234<=m&&m<=8238||8288<=m&&m<=8292||8293===m||8294<=m&&m<=8303||55296<=m&&m<=57343||65279===m||65520<=m&&m<=65528||65529<=m&&m<=65531||69821===m||113824<=m&&m<=113827||119155<=m&&m<=119162||917504===m||917505===m||917506<=m&&m<=917535||917536<=m&&m<=917631||917632<=m&&m<=917759||918e3<=m&&m<=921599?i:768<=m&&m<=879||1155<=m&&m<=1159||1160<=m&&m<=1161||1425<=m&&m<=1469||1471===m||1473<=m&&m<=1474||1476<=m&&m<=1477||1479===m||1552<=m&&m<=1562||1611<=m&&m<=1631||1648===m||1750<=m&&m<=1756||1759<=m&&m<=1764||1767<=m&&m<=1768||1770<=m&&m<=1773||1809===m||1840<=m&&m<=1866||1958<=m&&m<=1968||2027<=m&&m<=2035||2070<=m&&m<=2073||2075<=m&&m<=2083||2085<=m&&m<=2087||2089<=m&&m<=2093||2137<=m&&m<=2139||2275<=m&&m<=2306||2362===m||2364===m||2369<=m&&m<=2376||2381===m||2385<=m&&m<=2391||2402<=m&&m<=2403||2433===m||2492===m||2494===m||2497<=m&&m<=2500||2509===m||2519===m||2530<=m&&m<=2531||2561<=m&&m<=2562||2620===m||2625<=m&&m<=2626||2631<=m&&m<=2632||2635<=m&&m<=2637||2641===m||2672<=m&&m<=2673||2677===m||2689<=m&&m<=2690||2748===m||2753<=m&&m<=2757||2759<=m&&m<=2760||2765===m||2786<=m&&m<=2787||2817===m||2876===m||2878===m||2879===m||2881<=m&&m<=2884||2893===m||2902===m||2903===m||2914<=m&&m<=2915||2946===m||3006===m||3008===m||3021===m||3031===m||3072===m||3134<=m&&m<=3136||3142<=m&&m<=3144||3146<=m&&m<=3149||3157<=m&&m<=3158||3170<=m&&m<=3171||3201===m||3260===m||3263===m||3266===m||3270===m||3276<=m&&m<=3277||3285<=m&&m<=3286||3298<=m&&m<=3299||3329===m||3390===m||3393<=m&&m<=3396||3405===m||3415===m||3426<=m&&m<=3427||3530===m||3535===m||3538<=m&&m<=3540||3542===m||3551===m||3633===m||3636<=m&&m<=3642||3655<=m&&m<=3662||3761===m||3764<=m&&m<=3769||3771<=m&&m<=3772||3784<=m&&m<=3789||3864<=m&&m<=3865||3893===m||3895===m||3897===m||3953<=m&&m<=3966||3968<=m&&m<=3972||3974<=m&&m<=3975||3981<=m&&m<=3991||3993<=m&&m<=4028||4038===m||4141<=m&&m<=4144||4146<=m&&m<=4151||4153<=m&&m<=4154||4157<=m&&m<=4158||4184<=m&&m<=4185||4190<=m&&m<=4192||4209<=m&&m<=4212||4226===m||4229<=m&&m<=4230||4237===m||4253===m||4957<=m&&m<=4959||5906<=m&&m<=5908||5938<=m&&m<=5940||5970<=m&&m<=5971||6002<=m&&m<=6003||6068<=m&&m<=6069||6071<=m&&m<=6077||6086===m||6089<=m&&m<=6099||6109===m||6155<=m&&m<=6157||6313===m||6432<=m&&m<=6434||6439<=m&&m<=6440||6450===m||6457<=m&&m<=6459||6679<=m&&m<=6680||6683===m||6742===m||6744<=m&&m<=6750||6752===m||6754===m||6757<=m&&m<=6764||6771<=m&&m<=6780||6783===m||6832<=m&&m<=6845||6846===m||6912<=m&&m<=6915||6964===m||6966<=m&&m<=6970||6972===m||6978===m||7019<=m&&m<=7027||7040<=m&&m<=7041||7074<=m&&m<=7077||7080<=m&&m<=7081||7083<=m&&m<=7085||7142===m||7144<=m&&m<=7145||7149===m||7151<=m&&m<=7153||7212<=m&&m<=7219||7222<=m&&m<=7223||7376<=m&&m<=7378||7380<=m&&m<=7392||7394<=m&&m<=7400||7405===m||7412===m||7416<=m&&m<=7417||7616<=m&&m<=7669||7676<=m&&m<=7679||8204<=m&&m<=8205||8400<=m&&m<=8412||8413<=m&&m<=8416||8417===m||8418<=m&&m<=8420||8421<=m&&m<=8432||11503<=m&&m<=11505||11647===m||11744<=m&&m<=11775||12330<=m&&m<=12333||12334<=m&&m<=12335||12441<=m&&m<=12442||42607===m||42608<=m&&m<=42610||42612<=m&&m<=42621||42654<=m&&m<=42655||42736<=m&&m<=42737||43010===m||43014===m||43019===m||43045<=m&&m<=43046||43204===m||43232<=m&&m<=43249||43302<=m&&m<=43309||43335<=m&&m<=43345||43392<=m&&m<=43394||43443===m||43446<=m&&m<=43449||43452===m||43493===m||43561<=m&&m<=43566||43569<=m&&m<=43570||43573<=m&&m<=43574||43587===m||43596===m||43644===m||43696===m||43698<=m&&m<=43700||43703<=m&&m<=43704||43710<=m&&m<=43711||43713===m||43756<=m&&m<=43757||43766===m||44005===m||44008===m||44013===m||64286===m||65024<=m&&m<=65039||65056<=m&&m<=65071||65438<=m&&m<=65439||66045===m||66272===m||66422<=m&&m<=66426||68097<=m&&m<=68099||68101<=m&&m<=68102||68108<=m&&m<=68111||68152<=m&&m<=68154||68159===m||68325<=m&&m<=68326||69633===m||69688<=m&&m<=69702||69759<=m&&m<=69761||69811<=m&&m<=69814||69817<=m&&m<=69818||69888<=m&&m<=69890||69927<=m&&m<=69931||69933<=m&&m<=69940||70003===m||70016<=m&&m<=70017||70070<=m&&m<=70078||70090<=m&&m<=70092||70191<=m&&m<=70193||70196===m||70198<=m&&m<=70199||70367===m||70371<=m&&m<=70378||70400<=m&&m<=70401||70460===m||70462===m||70464===m||70487===m||70502<=m&&m<=70508||70512<=m&&m<=70516||70832===m||70835<=m&&m<=70840||70842===m||70845===m||70847<=m&&m<=70848||70850<=m&&m<=70851||71087===m||71090<=m&&m<=71093||71100<=m&&m<=71101||71103<=m&&m<=71104||71132<=m&&m<=71133||71219<=m&&m<=71226||71229===m||71231<=m&&m<=71232||71339===m||71341===m||71344<=m&&m<=71349||71351===m||71453<=m&&m<=71455||71458<=m&&m<=71461||71463<=m&&m<=71467||92912<=m&&m<=92916||92976<=m&&m<=92982||94095<=m&&m<=94098||113821<=m&&m<=113822||119141===m||119143<=m&&m<=119145||119150<=m&&m<=119154||119163<=m&&m<=119170||119173<=m&&m<=119179||119210<=m&&m<=119213||119362<=m&&m<=119364||121344<=m&&m<=121398||121403<=m&&m<=121452||121461===m||121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Nt(t,e,i,s,a,o){let n,r,l,c;n=l=c=Pt.getValue("math",e),r=null;let h="Size1-Regular";"\\vert"===e||"\\lvert"===e||"\\rvert"===e||"\\mvert"===e||"\\mid"===e?l=n=c="∣":"\\Vert"===e||"\\lVert"===e||"\\rVert"===e||"\\mVert"===e||"\\|"===e?l=n=c="∥":"\\uparrow"===e?l=c="⏐":"\\Uparrow"===e?l=c="‖":"\\downarrow"===e?n=l="⏐":"\\Downarrow"===e?n=l="‖":"\\updownarrow"===e?(n="↑",l="⏐",c="↓"):"\\Updownarrow"===e?(n="⇑",l="‖",c="⇓"):"["===e||"\\lbrack"===e?(n="⎡",l="⎢",c="⎣",h="Size4-Regular"):"]"===e||"\\rbrack"===e?(n="⎤",l="⎥",c="⎦",h="Size4-Regular"):"\\lfloor"===e?(l=n="⎢",c="⎣",h="Size4-Regular"):"\\lceil"===e?(n="⎡",l=c="⎢",h="Size4-Regular"):"\\rfloor"===e?(l=n="⎥",c="⎦",h="Size4-Regular"):"\\rceil"===e?(n="⎤",l=c="⎥",h="Size4-Regular"):"("===e?(n="⎛",l="⎜",c="⎝",h="Size4-Regular"):")"===e?(n="⎞",l="⎟",c="⎠",h="Size4-Regular"):"\\{"===e||"\\lbrace"===e?(n="⎧",r="⎨",c="⎩",l="⎪",h="Size4-Regular"):"\\}"===e||"\\rbrace"===e?(n="⎫",r="⎬",c="⎭",l="⎪",h="Size4-Regular"):"\\lgroup"===e?(n="⎧",c="⎩",l="⎪",h="Size4-Regular"):"\\rgroup"===e?(n="⎫",c="⎭",l="⎪",h="Size4-Regular"):"\\lmoustache"===e?(n="⎧",c="⎭",l="⎪",h="Size4-Regular"):"\\rmoustache"===e?(n="⎫",c="⎩",l="⎪",h="Size4-Regular"):"\\surd"===e?(n="",c="⎷",l="",h="Size4-Regular"):"\\ulcorner"===e?(n="┌",l=c=" 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Zt(t,e,i,s,a,o){if(!e||0===e.length||"."===e)return Xt(t,a,t);let n;"<"===e||"\\lt"===e?e="\\langle":">"!==e&&"\\gt"!==e||(e="\\rangle"),n=Ht.includes(e)?Ut:$t.includes(e)?Gt:jt;const r=function(t,e,i,s){for(let o=Math.min(2,3-s.mathstyle.size);o<i.length&&"stack"!==i[o].type;o++){const s=M.getCharacterMetrics(t,"small"===(a=i[o]).type?"Main-Regular":"large"===a.type?"Size"+a.size+"-Regular":"Size4-Regular");if(s.defaultMetrics)return{type:"small",mathstyle:O.SCRIPT};let n=s.height+s.depth;if("small"===i[o].type&&(n*=i[o].mathstyle.sizeMultiplier),n>e)return i[o]}var a;return i[i.length-1]}(Pt.getValue("math",e),i,n,a);return"small"===r.type?function(t,e,i,s,a,o){const n=It("AMS-Regular",Pt.getValue("math",e)),r=et.makeStyleWrap(t,n,a.mathstyle,i,o);return s&&r.setTop((1-a.mathstyle.sizeMultiplier/i.sizeMultiplier)*a.mathstyle.metrics.axisHeight),r.setStyle("color",a.color),"number"==typeof a.opacity&&r.setStyle("opacity",a.opacity),r}(t,e,r.mathstyle,s,a,o):"large"===r.type?Rt(t,e,r.size,s,a,o):Nt(t,e,i,s,a,o)}function Xt(t,e,i){return et.makeSpanOfType(t,"","sizing"+e.mathstyle.adjustTo(O.TEXT)+" nulldelimiter "+(i||""))}var Jt={makeSizedDelim:function(t,e,i,s,a){return"."===e?Xt(t,s,a):("<"===e||"\\lt"===e?e="\\langle":">"!==e&&"\\gt"!==e||(e="\\rangle"),$t.includes(e)||Ht.includes(e)?Rt(t,e,i,!1,s,a):Wt.includes(e)?Nt(t,e,Vt[i],!1,s,a):null)},makeCustomSizedDelim:Zt,makeLeftRightDelim:function(t,e,i,s,a,o){if("."===e)return Xt(t,a,o);const n=a.mathstyle.metrics.axisHeight*a.mathstyle.sizeMultiplier,r=5/M.METRICS.ptPerEm;let l=s+n,c=i-n,h=901*(c=Math.max(l,c))/500;return l=2*c-r,Zt(t,e,h=Math.max(h,l),!0,a,o)}};const Yt=et.makeSpan,Qt=et.makeOrd,te=et.makeInner,ee=et.makeHlist,ie=et.makeVlist,se=/\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5/,ae=/^([A-Za-z]|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)$/,oe={size1:.5,size2:.7,size3:.8,size4:.9,size5:1,size6:1.2,size7:1.44,size8:1.73,size9:2.07,size10:2.49};class ne{constructor(t,e,i,s){this.mode=t,this.type=e,this.body=i,this.applyStyle(s)}getStyle(){return{color:this.phantom?"transparent":this.color,backgroundColor:this.phantom?"transparent":this.backgroundColor,fontFamily:this.baseFontFamily||this.fontFamily||this.autoFontFamily,fontShape:this.fontShape,fontSeries:this.fontSeries,fontSize:this.fontSize,cssId:this.cssId,cssClass:this.cssClass}}applyStyle(t){if(Object.assign(this,t),"none"===this.fontFamily&&(this.fontFamily=""),"auto"===this.fontShape&&(this.fontShape=""),"auto"===this.fontSeries&&(this.fontSeries=""),"none"===this.color&&(this.color=""),"none"===this.backgroundColor&&(this.backgroundColor=""),"auto"===this.fontSize&&(this.fontSize=""),this.fontSize&&(this.maxFontSize=oe[this.fontSize]),"math"===this.mode){const t="string"==typeof this.body?this.body:"";this.autoFontFamily="cmr",ae.test(t)?this.autoFontFamily="math":/\\imath|\\jmath|\\pounds/.test(t)?this.autoFontFamily="mainit":se.test(t)||"math"!==this.baseFontFamily||(this.autoFontFamily="cmr")}else"text"===this.mode&&("root"!==this.type&&(this.type=""),delete this.baseFontFamily,delete this.autoFontFamily)}getInitialBaseElement(){let t=this;return Array.isArray(this.body)&&this.body.length>0&&("first"!==this.body[0].type?t=this.body[0].getInitialBaseElement():this.body[1]&&(t=this.body[1].getInitialBaseElement())),t}getFinalBaseElement(){return Array.isArray(this.body)&&this.body.length>0?this.body[this.body.length-1].getFinalBaseElement():this}isCharacterBox(){const t=this.getInitialBaseElement();return/minner|mbin|mrel|mpunct|mopen|mclose|textord/.test(t.type)}forEach(t){if(t(this),Array.isArray(this.body))for(const e of this.body)e&&e.forEach(t);else this.body&&"object"==typeof this.body&&t(this.body);if(this.superscript)for(const e of this.superscript)e&&e.forEach(t);if(this.subscript)for(const e of this.subscript)e&&e.forEach(t);if(this.overscript)for(const e of this.overscript)e&&e.forEach(t);if(this.underscript)for(const e of this.underscript)e&&e.forEach(t);if(this.numer)for(const e of this.numer)e&&e.forEach(t);if(this.denom)for(const e of this.denom)e&&e.forEach(t);if(this.index)for(const e of this.index)e&&e.forEach(t);if(this.array)for(const e of this.array)for(const i of e)for(const e of i)e.forEach(t)}filter(t){let e=[];t(this)&&e.push(this);for(const i of["body","superscript","subscript","overscript","underscript","numer","denom","index"])if(Array.isArray(this[i]))for(const s of this[i])s&&(e=e.concat(s.filter(t)));if(Array.isArray(this.array))for(const i of this.array)for(const s of i)s&&(e=e.concat(s.filter(t)));return e}decomposeGroup(t){const e=t.clone({mathstyle:this.mathstyle}),i=Qt(he(e,this.body));return this.cssId&&(i.cssId=this.cssId),i.applyStyle({backgroundColor:this.backgroundColor,cssClass:this.cssClass}),i}decomposeArray(t){let e=this.colFormat;e&&0===e.length&&(e=[{align:"l"}]),e||(e=[{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"},{align:"l"}]);const i=[];let s=0;for(const t of e)t.align&&s++;for(const t of this.array){let e=0;for(;e<t.length;){const a=[],o=Math.min(t.length,e+s);for(;e<o;)a.push(t[e++]);i.push(a)}}1===i[i.length-1].length&&0===i[i.length-1][0].length&&i.pop();const a=O.toMathstyle(this.mathstyle)||t.mathstyle,o=(this.arraystretch||1)*S.baselineskip,n=.7*o,r=.3*o;let l=0,c=0;const h=[],d=i.length;for(let e=0;e<d;++e){const s=i[e];c=Math.max(c,s.length);let a=n,o=r;const p=[];for(let e=0;e<s.length;++e){const i=he(t.clone({mathstyle:this.mathstyle}),s[e])||[],n=[Qt(null)].concat(i);o=Math.max(o,et.depth(n)),a=Math.max(a,et.height(n)),p.push(n)}let m=e===d-1?0:this.jot||0;this.rowGaps&&this.rowGaps[e]&&(m=this.rowGaps[e])>0&&(o<(m+=r)&&(o=m),m=0),p.height=a,p.depth=o,l+=a,p.pos=l,l+=o+m,h.push(p)}const p=l/2+a.metrics.axisHeight,m=[];for(let e=0;e<c;e++){const i=[];for(const t of h){const s=t[e];s&&(s.depth=t.depth,s.height=t.height,i.push(s),i.push(t.pos-p))}i.length>0&&m.push(ie(t,i,"individualShift"))}const u=[];let f=!1,g=!1,y=0,b=!this.lFence;for(const i of e){if(i.align&&y>=m.length)break;if(i.align&&y<m.length)f?u.push(re(2*S.arraycolsep)):(g||b)&&u.push(re(S.arraycolsep)),u.push(Yt(m[y],"col-align-"+i.align)),y++,f=!0,g=!1,b=!1;else if(void 0!==i.gap)"number"==typeof i.gap?u.push(re(i.gap)):u.push(le(t,h,p,i.gap)),f=!1,g=!1,b=!1;else if(i.rule){const e=Yt(null,"vertical-separator");e.setStyle("height",l,"em"),e.setStyle("margin-top",3*t.mathstyle.metrics.axisHeight-p,"em"),e.setStyle("vertical-align","top");let i=0;g?i=S.doubleRuleSep-S.arrayrulewidth:f&&(i=S.arraycolsep-S.arrayrulewidth),e.setLeft(i,"em"),u.push(e),f=!1,g=!0,b=!1}}if(f&&!this.rFence&&u.push(re(S.arraycolsep)),!(this.lFence&&"."!==this.lFence||this.rFence&&"."!==this.rFence))return Qt(u,"mtable");const x=Yt(u,"mtable"),k=et.height(x),v=et.depth(x);return Qt([this.bind(t,Jt.makeLeftRightDelim("mopen",this.lFence,k,v,t)),x,this.bind(t,Jt.makeLeftRightDelim("mclose",this.rFence,k,v,t))])}decomposeGenfrac(t){const e="auto"===this.mathstyle?t.mathstyle:O.toMathstyle(this.mathstyle),i=t.clone({mathstyle:e});let s=[];this.numerPrefix&&s.push(Qt(this.numerPrefix));const a=this.continuousFraction?e:e.fracNum();s=s.concat(he(i.clone({mathstyle:a}),this.numer));const o=ee(s,t.mathstyle.adjustTo(a));let n=[];this.denomPrefix&&n.push(Qt(this.denomPrefix));const r=this.continuousFraction?e:e.fracDen();n=n.concat(he(i.clone({mathstyle:r}),this.denom));const l=ee(n,t.mathstyle.adjustTo(r)),c=this.hasBarLine?S.defaultRuleThickness/e.sizeMultiplier:0;let h,d,p;e.size===O.DISPLAY.size?(h=e.metrics.num1,d=c>0?3*c:7*S.defaultRuleThickness,p=e.metrics.denom1):(c>0?(h=e.metrics.num2,d=c):(h=e.metrics.num3,d=3*S.defaultRuleThickness),p=e.metrics.denom2);const m=o?o.depth:0,u=l?l.height:0;let f;if(0===c){const t=h-m-(u-p);t<d&&(h+=.5*(d-t),p+=.5*(d-t)),f=ie(i,[o,-h,l,p],"individualShift")}else{const t=e.metrics.axisHeight;h-m-(t+.5*c)<d&&(h+=d-(h-m-(t+.5*c))),t-.5*c-(u-p)<d&&(p+=d-(t-.5*c-(u-p)));const s=Yt(null," frac-line");s.applyStyle(this.getStyle()),s.height=c;const a=[];o&&(a.push(o),a.push(-h)),a.push(s),a.push(c/2-t),l&&(a.push(l),a.push(p)),f=ie(i,a,"individualShift")}f.classes+=" mfrac",f.height*=e.sizeMultiplier/t.mathstyle.sizeMultiplier,f.depth*=e.sizeMultiplier/t.mathstyle.sizeMultiplier;const g=e.size===O.DISPLAY.size?e.metrics.delim1:e.metrics.delim2,y=Jt.makeCustomSizedDelim("mopen",this.leftDelim,g,!0,t.clone({mathstyle:e})),b=Jt.makeCustomSizedDelim("mclose",this.rightDelim,g,!0,t.clone({mathstyle:e}));return y.applyStyle(this.getStyle()),b.applyStyle(this.getStyle()),Qt([y,f,b],t.parentSize!==t.size?"sizing reset-"+t.parentSize+" "+t.size:"")}decomposeLeftright(t){if(!this.body)return this.leftDelim?new ne("math","mopen",this.leftDelim).decompose(t):this.rightDelim?new ne("math","mclose",this.rightDelim).decompose(t):null;const e=t.clone(),i=he(e,this.body),s=e.mathstyle;let a=0,o=0,n=[];if(a=et.height(i)*s.sizeMultiplier,o=et.depth(i)*s.sizeMultiplier,this.leftDelim&&(n.push(Jt.makeLeftRightDelim("mopen",this.leftDelim,a,o,e)),n[n.length-1].applyStyle(this.getStyle())),i){for(let t=0;t<i.length;t++)if(i[t].delim){const s=i[t].caret,n=/ML__selected/.test(i[t].classes);i[t]=Jt.makeLeftRightDelim("minner",i[t].delim,a,o,e),i[t].caret=s,i[t].selected(n)}n=n.concat(i)}if(this.rightDelim){let t,i=this.rightDelim;"?"===i&&(i=(i={"(":")","\\{":"\\}","\\[":"\\]","\\lbrace":"\\rbrace","\\langle":"\\rangle","\\lfloor":"\\rfloor","\\lceil":"\\rceil","\\vert":"\\vert","\\lvert":"\\rvert","\\Vert":"\\Vert","\\lVert":"\\rVert","\\lbrack":"\\rbrack","\\ulcorner":"\\urcorner","\\llcorner":"\\lrcorner","\\lgroup":"\\rgroup","\\lmoustache":"\\rmoustache"}[this.leftDelim])||this.leftDelim,t="ML__smart-fence__close"),n.push(Jt.makeLeftRightDelim("mclose",i,a,o,e,t)),n[n.length-1].applyStyle(this.getStyle())}return this.inner?te(n,s.cls()):n}decomposeSurd(t){const e=t.mathstyle,i=he(t.cramp(),this.body),s=S.defaultRuleThickness/e.sizeMultiplier;let a=s;e.id<O.TEXT.id&&(a=e.metrics.xHeight);let o=s+a/4;const n=Math.max(2*a,(et.height(i)+et.depth(i))*e.sizeMultiplier)+(o+s),r=Yt(Jt.makeCustomSizedDelim("","\\surd",n,!1,t),"sqrt-sign");r.applyStyle(this.getStyle());const l=r.height+r.depth-s;l>et.height(i)+et.depth(i)+o&&(o=(o+l-(et.height(i)+et.depth(i)))/2),r.setTop(r.height-et.height(i)-(o+s));const c=Yt(null,t.mathstyle.adjustTo(O.TEXT)+" sqrt-line");c.applyStyle(this.getStyle()),c.height=s;const h=ie(t,[i,o,c,s]);if(!this.index)return Qt([r,h],"sqrt");const d=t.clone({mathstyle:O.SCRIPTSCRIPT}),p=Yt(he(d,this.index),e.adjustTo(O.SCRIPTSCRIPT)),m=Math.max(r.height,h.height),u=Math.max(r.depth,h.depth),f=ie(t,[p],"shift",-.6*(m-u));return Qt([Yt(f,"root"),r,h],"sqrt")}decomposeAccent(t){const e=t.mathstyle;let i=he(t.cramp(),this.body);(this.superscript||this.subscript)&&(i=this.attachSupsub(t,Qt(i),"mord"));let s=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(s=et.skew(i));const a=Math.min(et.height(i),e.metrics.xHeight),o=et.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Yt(Yt(o),"accent-body"+n);return(r=ie(t,[i,-a,r])).children[1].setLeft(2*s),Qt(r,"accent")}decomposeLine(t){const e=t.mathstyle,i=he(t.cramp(),this.body),s=S.defaultRuleThickness/e.sizeMultiplier,a=Yt(null,t.mathstyle.adjustTo(O.TEXT)+" "+this.position+"-line");let o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=ie(t,[i,3*s,a,s]);else{const e=Yt(i);o=ie(t,[s,a,3*s,e],"top",et.height(e))}return Qt(o,this.position)}decomposeOverunder(t){const e=he(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?Yt(he(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?Yt(he(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return ce(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Yt(he(t,this.body),"inner");return Qt([e,Yt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Qt("","rule");let s=this.shift&&!isNaN(this.shift)?this.shift:0;s/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return i.setStyle("border-right-width",a,"em"),i.setStyle("border-top-width",o,"em"),i.setStyle("margin-top",-(o-s),"em"),i.setStyle("border-color",t.color),i.width=a,i.height=o+s,i.depth=-s,i}decomposeOp(t){const e=t.mathstyle;let i,s=!1;e.size===O.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(s=!0);let a=0,o=0;if(this.symbol){const n=s?"Size2-Regular":"Size1-Regular";(i=et.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op"))).type="mop",a=(i.height-i.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=i.italic,this.bind(t,i)}else Array.isArray(this.body)?(i=et.makeOp(he(t,this.body)),this.bind(t,i)):i=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const s=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===s||"auto"===s&&e.size===O.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Qt(he(t,this.body)),i=Yt();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:S.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + "+2*s+"em)"):i.setStyle("width","100%"),i.setStyle("top",-s,"em"),i.setStyle("left",-s,"em"),i.setStyle("z-index","-1"),this.backgroundcolor&&i.setStyle("background-color",this.backgroundcolor),this.framecolor&&i.setStyle("border",S.fboxrule+"em solid "+this.framecolor),this.border&&i.setStyle("border",this.border),e.setStyle("display","inline-block"),e.setStyle("height",e.height+e.depth,"em"),e.setStyle("vertical-align",-e.depth+s,"em");const a=Yt([i,e]);return a.setStyle("position","relative"),a.setStyle("vertical-align",-s+e.depth,"em"),a.height=e.height+s,a.depth=e.depth+s,a.setLeft(s),a.setRight(s),a}decomposeEnclose(t){const e=Qt(he(t,this.body)),i="auto"===this.padding?.2:this.padding;e.setStyle("padding",i,"em"),e.setStyle("display","inline-block"),e.setStyle("height",e.height+e.depth,"em"),e.setStyle("left",-i,"em"),this.backgroundcolor&&"transparent"!==this.backgroundcolor&&e.setStyle("background-color",this.backgroundcolor);let s="";if(this.notation.box&&e.setStyle("border",this.borderStyle),this.notation.actuarial&&(e.setStyle("border-top",this.borderStyle),e.setStyle("border-right",this.borderStyle)),this.notation.madruwb&&(e.setStyle("border-bottom",this.borderStyle),e.setStyle("border-right",this.borderStyle)),this.notation.roundedbox&&(e.setStyle("border-radius",(et.height(e)+et.depth(e))/2,"em"),e.setStyle("border",this.borderStyle)),this.notation.circle&&(e.setStyle("border-radius","50%"),e.setStyle("border",this.borderStyle)),this.notation.top&&e.setStyle("border-top",this.borderStyle),this.notation.left&&e.setStyle("border-left",this.borderStyle),this.notation.right&&e.setStyle("border-right",this.borderStyle),this.notation.bottom&&e.setStyle("border-bottom",this.borderStyle),this.notation.horizontalstrike&&(s+='<line x1="3%"  y1="50%" x2="97%" y2="50%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),this.notation.verticalstrike&&(s+='<line x1="50%"  y1="3%" x2="50%" y2="97%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),this.notation.updiagonalstrike&&(s+='<line x1="3%"  y1="97%" x2="97%" y2="3%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),this.notation.downdiagonalstrike&&(s+='<line x1="3%"  y1="3%" x2="97%" y2="97%"',s+=` stroke-width="${this.strokeWidth}" stroke="${this.strokeColor}"`,s+=' stroke-linecap="round"',this.svgStrokeStyle&&(s+=` stroke-dasharray="${this.svgStrokeStyle}"`),s+="/>"),s){let t;return"none"!==this.shadow&&(t="auto"===this.shadow?"filter: drop-shadow(0 0 .5px rgba(255, 255, 255, .7)) drop-shadow(1px 1px 2px #333)":"filter: drop-shadow("+this.shadow+")"),et.makeSVG(e,s,t)}return e}decompose(t,e){let i=null;if(!this.type||/mord|minner|mbin|mrel|mpunct|mopen|mclose|textord/.test(this.type))(i="string"==typeof this.body?this.makeSpan(t,this.body):this.makeSpan(t,he(t,this.body))).type=this.type;else if("group"===this.type||"root"===this.type)i=this.decomposeGroup(t);else if("array"===this.type)i=this.decomposeArray(t);else if("genfrac"===this.type)i=this.decomposeGenfrac(t);else if("surd"===this.type)i=this.decomposeSurd(t);else if("accent"===this.type)i=this.decomposeAccent(t);else if("leftright"===this.type)i=this.decomposeLeftright(t);else if("delim"===this.type)(i=Yt(null,"")).delim=this.delim;else if("sizeddelim"===this.type)i=this.bind(t,Jt.makeSizedDelim(this.cls,this.delim,this.size,t));else if("line"===this.type)i=this.decomposeLine(t);else if("overunder"===this.type)i=this.decomposeOverunder(t);else if("overlap"===this.type)i=this.decomposeOverlap(t);else if("rule"===this.type)i=this.decomposeRule(t);else if("styling"===this.type);else if("msubsup"===this.type)i=Qt("​"),e&&(i.height=e[0].height,i.depth=e[0].depth);else if("mop"===this.type)i=this.decomposeOp(t);else if("space"===this.type)i=this.makeSpan(t," ");else if("spacing"===this.type)if("​"===this.body)i=this.makeSpan(t,"​");else if(" "===this.body)i="math"===this.mode?this.makeSpan(t," "):this.makeSpan(t," ");else if(this.width)i=Yt("​","mspace "),this.width>0?i.setWidth(this.width):i.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";i=Yt("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?i=this.decomposeBox(t):"enclose"===this.type?i=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?((i=this.makeSpan(t,this.body)).classes="",this.error&&(i.classes+=" ML__error"),this.suggestion&&(i.classes+=" ML__suggestion")):"placeholder"===this.type?i=this.makeSpan(t,"⬚"):"first"===this.type&&(i=this.makeSpan(t,"​"));if(!i)return i;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(i)?i[i.length-1].caret=this.caret:i.caret=this.caret),!this.limits&&(this.superscript||this.subscript))if(Array.isArray(i)){const e=i[i.length-1];i[i.length-1]=this.attachSupsub(t,e,e.type)}else i=[this.attachSupsub(t,i,i.type)];return Array.isArray(i)?i:[i]}attachSupsub(t,e,i){if(!this.superscript&&!this.subscript)return e;const s=t.mathstyle;let a=null,o=null;if(this.superscript){const e=he(t.sup(),this.superscript);a=Yt(e,s.adjustTo(s.sup()))}if(this.subscript){const e=he(t.sub(),this.subscript);o=Yt(e,s.adjustTo(s.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=et.height(e)-s.metrics.supDrop,l=et.depth(e)+s.metrics.subDrop),n=s===O.DISPLAY?s.metrics.sup1:s.cramped?s.metrics.sup3:s.metrics.sup2;const c=O.TEXT.sizeMultiplier*s.sizeMultiplier,h=.5/S.ptPerEm/c;let d=null;if(o&&a){r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),l=Math.max(l,s.metrics.sub2);const i=S.defaultRuleThickness;if(r-et.depth(a)-(et.height(o)-l)<4*i){l=4*i-(r-a.depth)+et.height(o);const t=.8*s.metrics.xHeight-(r-et.depth(a));t>0&&(r+=t,l-=t)}d=ie(t,[o,l,a,-r],"individualShift"),this.symbol&&d.children[0].setLeft(-et.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,et.height(o)-.8*s.metrics.xHeight),(d=ie(t,[o],"shift",l)).children[0].setRight(h),this.isCharacterBox()&&d.children[0].setLeft(-et.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),(d=ie(t,[a],"shift",-r)).children[0].setRight(h));const p=Yt(d,"msubsup");return this.caret&&(p.caret=this.caret),et.makeSpanOfType(i,[e,p])}attachLimits(t,e,i,s){const a=this.superscript?Yt(he(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Yt(he(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return ce(t,e,i,s,a,o,"mop")}bind(t,e){return"first"!==this.type&&"​"!==this.body&&(this.id=function(t){let e;return"boolean"==typeof t.generateID&&t.generateID?e=Date.now().toString(36).slice(-2)+Math.floor(1e5*Math.random()).toString(36):"boolean"!=typeof t.generateID&&(t.generateID.overrideID?e=t.generateID.overrideID:(e=t.generateID.seed.toString(36),t.generateID.seed+=1)),e}(t),this.id&&(e.attributes||(e.attributes={}),e.attributes["data-atom-id"]=this.id)),e}makeSpan(t,e){const i="textord"===this.type?"mord":this.type,s=et.makeSpanOfType(i,e),a=this.getStyle();s.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(s.classes+=" sizing reset-"+t.parentSize,s.classes+=" "+o):t.parentSize!==t.size&&(s.classes+=" sizing reset-"+t.parentSize,s.classes+=" "+t.size),s.maxFontSize=Math.max(s.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(s.classes+=" ML__text"),t.mathstyle.isTight()&&(s.isTight=!0),"math"!==this.mode&&(s.italic=0),s.setRight(s.italic),"number"==typeof t.opacity&&s.setStyle("opacity",t.opacity),this.bind(t,s),this.caret&&(this.superscript||this.subscript||(s.caret=this.caret,t.mathstyle.isTight()&&(s.isTight=!0))),s}}function re(t){const e=Yt("​","arraycolsep");return e.setWidth(t,"em"),e}function le(t,e,i,s){const a=[];for(const o of e){const e=Yt(he(t,s));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-i)}return ie(t,a,"individualShift")}function ce(t,e,i,s,a,o,n){if(!a&&!o)return e;e=Yt(e);let r=0,l=0;a&&(r=Math.max(S.bigOpSpacing1,S.bigOpSpacing3-a.depth)),o&&(l=Math.max(S.bigOpSpacing2,S.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=S.bigOpSpacing5+et.height(o)+et.depth(o)+l+et.depth(e)+i;(c=ie(t,[S.bigOpSpacing5,o,l,e,r,a,S.bigOpSpacing5],"bottom",n)).children[0].setLeft(-s),c.children[2].setLeft(s)}else if(o&&!a){const a=et.height(e)-i;(c=ie(t,[S.bigOpSpacing5,o,l,e],"top",a)).children[0].setLeft(-s)}else if(!o&&a){const o=et.depth(e)+i;(c=ie(t,[e,r,a,S.bigOpSpacing5],"bottom",o)).children[1].setLeft(s)}return et.makeSpanOfType(n,c,"op-limits")}function he(t,e){t instanceof K.Context||(t=new K.Context(t));const i=!t.generateID||!t.generateID.groupNumbers;let s=[];if(Array.isArray(e)){if(0===e.length)return s;if(1===e.length)(s=e[0].decompose(t))&&i&&e[0].isSelected&&s.forEach(t=>t.selected(!0));else{let a="none",o=e[1].type,n=[],r=null,l=null;for(let c=0;c<e.length;c++){"mbin"===e[c].type&&(/first|none|mrel|mpunct|mopen|mbin|mop/.test(a)||/none|mrel|mpunct|mclose/.test(o))&&(e[c].type="mord"),"​"===e[c].body&&(e[c].superscript||e[c].subscript)||(l=null),t.generateID.groupNumbers&&r&&"mord"===e[c].type&&/[0-9,.]/.test(e[c].latex)&&(t.generateID.overrideID=r);const h=e[c].decompose(t,l);if(t.generateID&&(t.generateID.overrideID=null),h){const a=[].concat.apply([],h);l=a,t.generateID&&t.generateID.groupNumbers&&("mord"===e[c].type&&/[0-9,.]/.test(e[c].latex)&&(r||(r=e[c].id)),("mord"!==e[c].type||/[0-9,.]/.test(e[c].latex)||e[c].superscript||e[c].subscript)&&r&&(r=null)),i&&e[c].isSelected?(n=n.concat(a)).forEach(t=>t.selected(!0)):(n.length>0&&(s=[...s,...n],n=[]),s=s.concat(a))}a=e[c].getFinalBaseElement().type,o=e[c+1]?e[c+1].getInitialBaseElement().type:"none"}n.length>0&&(s=[...s,...n],n=[])}}else e&&(s=e.decompose(t))&&i&&e.isSelected&&s.forEach(t=>t.selected(!0));if(!s||0===s.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of s)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=oe[t.size]/oe[t.parentSize];for(const t of s)t.height*=e,t.depth*=e}return s}var de={MathAtom:ne,decompose:he,makeRoot:function(t,e){const i=new ne(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new ne("","first")),i},GREEK_REGEX:se};const pe={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},me={apricot:"#FBB982",aquamarine:"#00B5BE",bittersweet:"#C04F17",black:"#221E1F",blue:"#2D2F92",bluegreen:"#00B3B8",blueviolet:"#473992",brickred:"#B6321C",brown:"#792500",burntorange:"#F7921D",cadetblue:"#74729A",carnationpink:"#F282B4",cerulean:"#00A2E3",cornflowerblue:"#41B0E4",cyan:"#00AEEF",dandelion:"#FDBC42",darkorchid:"#A4538A",emerald:"#00A99D",forestgreen:"#009B55",fuchsia:"#8C368C",goldenrod:"#FFDF42",gray:"#949698",green:"#00A64F",greenyellow:"#DFE674",junglegreen:"#00A99A",lavender:"#F49EC4",limegreen:"#8DC73E",magenta:"#EC008C",mahogany:"#A9341F",maroon:"#AF3235",melon:"#F89E7B",midnightblue:"#006795",mulberry:"#A93C93",navyblue:"#006EB8",olivegreen:"#3C8031",orange:"#F58137",orangered:"#ED135A",orchid:"#AF72B0",peach:"#F7965A",periwinkle:"#7977B8",pinegreen:"#008B72",plum:"#92268F",processblue:"#00B0F0",purple:"#99479B",rawsienna:"#974006",red:"#ED1B23",redorange:"#F26035",redviolet:"#A1246B",rhodamine:"#EF559F",royalblue:"#0071BC",royalpurple:"#613F99",rubinered:"#ED017D",salmon:"#F69289",seagreen:"#3FBC9D",sepia:"#671800",skyblue:"#46C5DD",springgreen:"#C6DC67",tan:"#DA9D76",tealblue:"#00AEB3",thistle:"#D883B7",turquoise:"#00B4CE",violet:"#58429B",violetred:"#EF58A0",white:"#FFFFFF",wildstrawberry:"#EE2967",yellow:"#FFF200",yellowgreen:"#98CC70",yelloworange:"#FAA21A"};var ue={stringToColor:function(t){const e=t.toLowerCase().split("!");let i,s,a,o=255,n=255,r=255,l=-1;const c=e.length>0&&"-"===e[0].charAt(0);c&&(e[0]=e[0].slice(1));for(let t=0;t<e.length;t++){i=o,s=n,a=r;let c=e[t].match(/([a-z0-9]*)/);c&&(c=c[1]);let h=me[c]||pe[c];h||(h=e[t]);let d=h.match(/^#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i);if(d&&d[1]&&d[2]&&d[3])o=Math.max(0,Math.min(255,parseInt(d[1],16))),n=Math.max(0,Math.min(255,parseInt(d[2],16))),r=Math.max(0,Math.min(255,parseInt(d[3],16)));else if((d=h.match(/^#([0-9a-f]{3})$/i))&&d[1]){const t=parseInt(d[1][0],16),e=parseInt(d[1][1],16),i=parseInt(d[1][2],16);o=Math.max(0,Math.min(255,16*t+t)),n=Math.max(0,Math.min(255,16*e+e)),r=Math.max(0,Math.min(255,16*i+i))}else{if(!((d=h.match(/^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i))&&d[1]&&d[2]&&d[3]))return null;o=Math.max(0,Math.min(255,parseInt(d[1]))),n=Math.max(0,Math.min(255,parseInt(d[2]))),r=Math.max(0,Math.min(255,parseInt(d[3])))}l>=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1<e.length&&(l=Math.max(0,Math.min(100,parseInt(e[++t])))/100)}return l>=0&&(o=l*o+(1-l)*i,n=l*n+(1-l)*s,r=l*r+(1-l)*a),c&&(o=255-o,n=255-n,r=255-r),"#"+("00"+Math.round(o).toString(16)).slice(-2)+("00"+Math.round(n).toString(16)).slice(-2)+("00"+Math.round(r).toString(16)).slice(-2)},colorToString:function(t){let e=t.toUpperCase();for(const t in me)if(me[t]===e){e=t;break}for(const t in pe)if(pe[t]===e){e=t;break}return e},AREA_COLORS:["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],LINE_COLORS:["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"]};const fe=de.MathAtom;class ge{constructor(t,e,i){this.tokens=t,this.index=0,this.args=e,this.macros=i,this.mathList=[],this.style={},this.parseMode="math",this.tabularMode=!1,this.endCount=0}swapMathList(t){const e=this.mathList;return this.mathList=t||[],e}swapParseMode(t){const e=this.parseMode;return this.parseMode=t,e}end(){return this.endCount++,this.index>=this.tokens.length||this.endCount>1e3}get(){return this.endCount=0,this.index<this.tokens.length?this.tokens[this.index++]:null}peek(t){const e=this.index+(t||0);return e<this.tokens.length?this.tokens[e]:null}lastMathAtom(){const t=0===this.mathList.length?"none":this.mathList[this.mathList.length-1].type;if("mop"!==t&&"msubsup"!==t){const t=new fe(this.parseMode,"msubsup","​");t.attributes={"aria-hidden":!0},this.mathList.push(t)}return this.mathList[this.mathList.length-1]}hasToken(t){const e=this.index;return e<this.tokens.length&&this.tokens[e].type===t}hasLiteral(t){const e=this.index;return e<this.tokens.length&&"literal"===this.tokens[e].type&&(!t||this.tokens[e].value===t)}hasLiteralPattern(t){return this.hasToken("literal")&&t.test(this.tokens[this.index].value)}hasCommand(t){const e=this.index;return e<this.tokens.length&&"command"===this.tokens[e].type&&this.tokens[e].value===t}hasInfixCommand(){const t=this.index;if(t<this.tokens.length&&"command"===this.tokens[t].type){const e=Pt.getInfo("\\"+this.tokens[t].value,this.parseMode,this.macros);return e&&e.infix}return!1}hasColumnSeparator(){const t=this.index;return!!(this.tabularMode&&t<this.tokens.length)&&"literal"===this.tokens[t].type&&"&"===this.tokens[t].value}hasRowSeparator(){const t=this.index;return!!(this.tabularMode&&t<this.tokens.length)&&"command"===this.tokens[t].type&&("\\"===this.tokens[t].value||"cr"===this.tokens[t].value)}parseColumnSeparator(){return!!this.hasColumnSeparator()&&(this.index++,!0)}placeholder(){if(this.args&&"string"==typeof this.args["?"])return ye(x.tokenize(this.args["?"]),this.parseMode,null,this.macros);const t=new fe(this.parseMode,"placeholder","?",this.style);return t.captureSelection=!0,[t]}hasImplicitCommand(t){if(this.index<this.tokens.length){const e=this.tokens[this.index];if("command"===e.type)return t.includes(e.value)}return!1}parseRowSeparator(){return!!this.hasRowSeparator()&&(this.index++,!0)}parseToken(t){return!!this.hasToken(t)&&(this.index++,!0)}skipWhitespace(){let t=!1;for(;this.hasToken("space");)this.index++,t=!0;return t}skipUntilToken(t){for(;!this.end()&&!this.parseToken(t);)this.get()}parseCommand(t){return!!this.hasCommand(t)&&(this.index++,!0)}parseLiteral(t){return!!this.hasLiteral(t)&&(this.index++,!0)}parseFiller(){let t=!1,e=!1;do{const i=this.skipWhitespace(),s=this.parseCommand("relax");t=t||i||s,e=!i&&!s}while(!e);return t}parseKeyword(t){const e=this.index;let i=this.end(),s="";for(;!i;){const e=this.get();"literal"===e.type&&(s+=e.value),i=this.end()||"literal"!==e.type||s.length>=t.length}const a=t.toUpperCase()===s.toUpperCase();return a||(this.index=e),a}scanString(){let t="",e=this.end();for(;!e;){if(this.hasLiteral("]"))e=!0;else if(this.hasToken("literal"))t+=this.get().value;else if(this.skipWhitespace())t+=" ";else if(this.hasToken("command")){const e=this.get();"space"===e.value?t+=" ":t+=e.value}else e=!0;e=e||this.end()}return t}scanColor(){return ue.stringToColor(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let i=10,s=/[0-9]/;this.parseLiteral("'")?(i=8,s=/[0-7]/,t=!0):(this.parseLiteral('"')||this.parseLiteral("x"))&&(i=16,s=/[0-9A-F]/,t=!0);let a="";for(;this.hasLiteralPattern(s);)a+=this.get().value;if(!t&&(this.parseLiteral(".")||this.parseLiteral(",")))for(a+=".";this.hasLiteralPattern(s);)a+=this.get().value;const o=t?parseInt(a,i):parseFloat(a);return e?-o:o}scanDimen(){const t=this.scanNumber(!1);return this.skipWhitespace(),this.parseKeyword("pt")?M.toEm(t,"pt"):this.parseKeyword("mm")?M.toEm(t,"mm"):this.parseKeyword("cm")?M.toEm(t,"cm"):this.parseKeyword("ex")?M.toEm(t,"ex"):this.parseKeyword("px")?M.toEm(t,"px"):this.parseKeyword("em")?M.toEm(t,"em"):this.parseKeyword("bp")?M.toEm(t,"bp"):this.parseKeyword("dd")?M.toEm(t,"dd"):this.parseKeyword("pc")?M.toEm(t,"pc"):this.parseKeyword("in")?M.toEm(t,"in"):this.parseKeyword("mu")?M.toEm(t,"mu"):M.toEm(t,"pt")}scanSkip(){const t=this.scanDimen();return this.skipWhitespace(),this.parseKeyword("plus")&&this.scanDimen(),this.skipWhitespace(),this.parseKeyword("minus")&&this.scanDimen(),t}scanColspec(){this.skipWhitespace();const t=[];for(;!this.end()&&!this.hasToken("}")&&!this.hasLiteral("]");)if(this.hasLiteral()){const e=this.get().value;if("lcr".includes(e))t.push({align:e});else if("|"===e)t.push({rule:!0});else if("@"===e){if(this.parseToken("{")){const e=this.swapParseMode("math");t.push({gap:this.scanImplicitGroup(t=>"}"===t.type)}),this.swapParseMode(e)}this.parseToken("}")}}return t}scanModeSet(){let t;if(this.parseCommand("(")&&(t=")"),!t&&this.parseCommand("[")&&(t="]"),!t)return null;const e=this.swapParseMode("math"),i=new fe("math","group");return i.mathstyle=")"===t?"textstyle":"displaystyle",i.body=this.scanImplicitGroup(e=>"command"===e.type&&e.value===t),this.parseCommand(t),this.swapParseMode(e),i.body&&0!==i.body.length?i:null}scanModeShift(){if(!this.hasToken("$")&&!this.hasToken("$$"))return null;const t=this.get().type,e=new fe("math","group");e.mathstyle="$"===t?"textstyle":"displaystyle",e.latexOpen="textstyle"===e.mathstyle?"$":"$$",e.latexClose=e.latexOpen;const i=this.swapParseMode("math");return e.body=this.scanImplicitGroup(e=>e.type===t),this.parseToken(t),this.swapParseMode(i),e.body&&0!==e.body.length?e:null}scanEnvironment(){if(!this.parseCommand("begin"))return null;const t=this.scanArg("string"),e=Pt.getEnvironmentInfo(t),i=[];if(e&&e.params)for(const t of e.params)if(t.optional){const e=this.scanOptionalArg(t.type);i.push(e)}else i.push(this.scanArg(t.type));const s=this.parseMode,a=this.tabularMode,o=this.swapMathList([]);this.tabularMode=e.tabular;const n=[],r=[];let l=[],c=!1;do{if(!(c=this.end())&&this.parseCommand("end")&&(c=this.scanArg("string")===t),!c)if(this.parseColumnSeparator())l.push(this.swapMathList([]));else if(this.parseRowSeparator()){l.push(this.swapMathList([]));let t=0;this.skipWhitespace(),this.parseLiteral("[")&&(t=this.scanDimen(),this.skipWhitespace(),this.parseLiteral("]")),r.push(t||0),n.push(l),l=[]}else this.mathList=this.mathList.concat(this.scanImplicitGroup())}while(!c);l.push(this.swapMathList([])),l.length>0&&n.push(l);const h=this.swapMathList(o);if(this.parseMode=s,this.tabularMode=a,!e.tabular&&0===h.length)return null;if(e.tabular&&0===n.length)return null;const d=new fe(this.parseMode,"array",h,e.parser?e.parser(t,i,n):{});return d.array=n,d.rowGaps=r,d.env={...e},d.env.name=t,d}scanImplicitGroup(t){const e=this.style;t||(t=(t=>"}"===t.type||"literal"===t.type&&"&"===t.value||"command"===t.type&&/^(end|cr|\\)$/.test(t.value)));let i=null,s=null;const a=this.swapMathList([]);for(;!this.end()&&!t(this.peek());)if(this.hasImplicitCommand(["displaystyle","textstyle","scriptstyle","scriptscriptstyle"])){this.parseMode="math";const t=new fe("math","mathstyle");t.mathstyle=this.get().value,this.mathList.push(t)}else this.hasInfixCommand()&&!i?(i=this.get(),s=this.swapMathList([])):this.parseAtom();let o;if(i){const t=this.swapMathList(a),e=Pt.getInfo("\\"+i.value,"math",this.macros);o=e?[new fe(this.parseMode,e.type,e.value||i.value,e.parse?e.parse("\\"+i.value,[s,t]):null)]:[new fe(this.parseMode,"mop",i.value)]}else o=this.swapMathList(a);return this.style=e,o}scanGroup(){if(!this.parseToken("{"))return null;const t=new fe(this.parseMode,"group");return t.body=this.scanImplicitGroup(t=>"}"===t.type),this.parseToken("}"),t.latexOpen="{",t.latexClose="}",t}scanSmartFence(){if(this.skipWhitespace(),!this.parseLiteral("("))return null;const t=new fe(this.parseMode,"leftright");t.leftDelim="(",t.inner=!1;const e=this.swapMathList([]);let i=1;for(;!this.end()&&0!==i;)this.hasLiteral("(")&&(i+=1),this.hasLiteral(")")&&(i-=1),0!==i&&this.parseAtom();return 0===i&&this.parseLiteral(")"),t.rightDelim=0===i?")":"?",t.body=this.swapMathList(e),t}scanDelim(){this.skipWhitespace();const t=this.get();if(!t)return null;let e=".";"command"===t.type?e="\\"+t.value:"literal"===t.type&&(e=t.value);const i=Pt.getInfo(e,"math",this.macros);return i?"mopen"===i.type||"mclose"===i.type?e:/^(\?|\||<|>|\\vert|\\Vert|\\\||\\surd|\\uparrow|\\downarrow|\\Uparrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\mid|\\mvert|\\mVert)$/.test(e)?e:null:null}scanLeftRight(){if(this.parseCommand("right")||this.parseCommand("mright")){const t=new fe(this.parseMode,"leftright");return t.rightDelim=this.scanDelim()||".",t}const t=this.style;let e="right";if(!this.parseCommand("left")){if(!this.parseCommand("mleft"))return null;e="mright"}const i=this.scanDelim()||".",s=this.swapMathList([]);for(;!this.end()&&!this.parseCommand(e);)this.parseAtom();this.style=t;const a=this.scanDelim(),o=new fe(this.parseMode,"leftright");return o.leftDelim=i,o.rightDelim=a,o.inner="right"===e,o.body=this.swapMathList(s),o}parseSupSub(){if("math"!==this.parseMode)return!1;let t=!1;for(;this.hasLiteral("^")||this.hasLiteral("_")||this.hasLiteral("'");){let e;if(this.hasLiteral("^")?e="superscript":this.hasLiteral("_")&&(e="subscript"),this.parseLiteral("^")||this.parseLiteral("_")){const i=this.scanArg();if(i){const s=this.lastMathAtom();s[e]=s[e]||[],s[e]=s[e].concat(i),t=!0}}else if(this.parseLiteral("'")){const e=this.lastMathAtom();e.superscript=e.superscript||[],e.superscript.push(new fe(e.parseMode,"mord","′")),t=!0}}return t}parseLimits(){if(this.parseCommand("limits")){const t=this.lastMathAtom();return t.limits="limits",t.explicitLimits=!0,!0}if(this.parseCommand("nolimits")){const t=this.lastMathAtom();return t.limits="nolimits",t.explicitLimits=!0,!0}return!1}scanOptionalArg(t){if(t=t&&"auto"!==t?t:this.parseMode,this.skipWhitespace(),!this.parseLiteral("["))return null;const e=this.parseMode;this.parseMode=t;const i=this.swapMathList();let s;for(;!this.end()&&!this.parseLiteral("]");)if("string"===t)s=this.scanString();else if("number"===t)s=this.scanNumber();else if("dimen"===t)s=this.scanDimen();else if("skip"===t)s=this.scanSkip();else if("colspec"===t)s=this.scanColspec();else if("color"===t)s=this.scanColor()||"#ffffff";else if("bbox"===t){const t=this.scanString().toLowerCase().trim().split(/,(?![^(]*\)(?:(?:[^(]*\)){2})*[^"]*$)/);for(const e of t){const t=ue.stringToColor(e);if(t)(s=s||{}).backgroundcolor=t;else{const t=e.match(/^\s*([0-9.]+)\s*([a-z][a-z])/);if(t)(s=s||{}).padding=M.toEm(t[1],t[2]);else{const t=e.match(/^\s*border\s*:\s*(.*)/);t&&((s=s||{}).border=t[1])}}}}else this.mathList=this.mathList.concat(this.scanImplicitGroup(t=>"literal"===t.type&&"]"===t.value));this.parseMode=e;const a=this.swapMathList(i);return s||a}scanArg(t){let e;if(t=t&&"auto"!==t?t:this.parseMode,this.parseFiller(),!this.parseToken("{")){if("delim"===t)return this.scanDelim()||".";if(/^(math|text)$/.test(t)){const e=this.parseMode;this.parseMode=t;const i=this.scanToken();return this.parseMode=e,Array.isArray(i)?i:i?[i]:null}}if(this.hasToken("#")){const t=this.get();return this.skipUntilToken("}"),"?"===t.value?this.placeholder():this.args?void 0===this.args[t.value]&&void 0!==this.args["?"]?this.placeholder():this.args[t.value]||null:null}const i=this.parseMode;this.parseMode=t;const s=this.swapMathList([]);if("string"===t)e=this.scanString(),this.skipUntilToken("}");else if("number"===t)e=this.scanNumber(),this.skipUntilToken("}");else if("dimen"===t)e=this.scanDimen(),this.skipUntilToken("}");else if("skip"===t)e=this.scanSkip(),this.skipUntilToken("}");else if("colspec"===t)e=this.scanColspec(),this.skipUntilToken("}");else if("color"===t)e=this.scanColor()||"#ffffff",this.skipUntilToken("}");else if("delim"===t)e=this.scanDelim()||".",this.skipUntilToken("}");else do{this.mathList=this.mathList.concat(this.scanImplicitGroup())}while(!this.parseToken("}")&&!this.end());this.parseMode=i;const a=this.swapMathList(s);return e||a}scanToken(){const t=this.get();if(!t)return null;let e=null;if("space"===t.type)"text"===this.parseMode&&(e=new fe("text",""," ",this.style));else if("placeholder"===t.type)(e=new fe(this.parseMode,"placeholder",t.value)).captureSelection=!0;else if("command"===t.type){if("placeholder"===t.value)(e=new fe(this.parseMode,"placeholder",this.scanArg("string"),this.style)).captureSelection=!0;else if("char"===t.value){let t=Math.floor(this.scanNumber(!0));(!isFinite(t)||t<0||t>1114111)&&(t=10067),(e=new fe(this.parseMode,"math"===this.parseMode?"mord":"",String.fromCodePoint(t))).latex='{\\char"'+("000000"+t.toString(16)).toUpperCase().substr(-6)+"}"}else if("hskip"===t.value||"kern"===t.value){const i=this.scanSkip();isFinite(i)&&((e=new fe(this.parseMode,"spacing",null,this.style)).width=i),e.latex="\\"+t.value}else if(!(e=this.scanMacro(t.value))){const i=Pt.getInfo("\\"+t.value,this.parseMode,this.macros),s=[];let a="",o="";if(i&&i.params)for(const t of i.params)if(t.optional){const e=this.scanOptionalArg(t.type);s.push(e)}else if(t.type.endsWith("*"))o=t.type.slice(0,-1);else{const e=this.scanArg(t.type);if(e&&1===e.length&&"placeholder"===e[0].type&&t.placeholder&&(e[0].value=t.placeholder),e)s.push(e);else if(t.placeholder){const e=new fe(this.parseMode,"placeholder",t.placeholder);e.captureSelection=!0,s.push([e])}else s.push(this.placeholder());"math"!==t.type&&"string"==typeof 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s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},Fe.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=Pe(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e<t;){if(qe(this.parent().array,e)&&this.setSelection(0,0,"cell"+e))return void this.selectionDidChange();e+=1}}if(1===this.path.length)(this.suppressChangeNotifications||!this.config.onMoveOutOf||this.config.onMoveOutOf(this,"forward"))&&(this.path[0].offset=0);else{const e=!t.iterateAll&&this.parent().skipBoundary;this.path.pop(),e&&this.next(t)}return void this.selectionDidChange()}this.setSelection(this.anchorOffset()+1);const i=this.anchor();if(i&&!i.captureSelection){let s;if(i.array){let t=0;s="";const e=Pe(i.array);for(;!s&&t<e;)qe(i.array,t)&&(s="cell"+t.toString()),t+=1;return this.path.push({relation:s,offset:0}),void this.setSelection(0,0,s)}for(s="body";s;){if(Array.isArray(i[s]))return this.path.push({relation:s,offset:0}),this.insertFirstAtom(),void(!t.iterateAll&&i.skipBoundary&&this.next(t));s=e[s]}}},Fe.prototype.previous=function(t){const e={numer:"body",denom:"numer",index:"denom",overscript:"index",underscript:"overscript",subscript:"underscript",superscript:"subscript"};if(!(t=t||{}).iterateAll&&1===this.anchorOffset()&&this.parent()&&this.parent().skipBoundary&&this.setSelection(0),this.anchorOffset()<1){let t=e[this.relation()];for(;t&&!this.setSelection(-1,0,t);)t=e[t];const i=this.parent()?this.parent().type:"none";if("body"!==t||"msubsup"!==i&&"mop"!==i||(t=null),t)return;if(this.adjustPlaceholder(),this.selectionWillChange(),this.relation().startsWith("cell")){let t=parseInt(this.relation().match(/cell([0-9]*)$/)[1])-1;for(;t>=0;){if(qe(this.parent().array,t)&&this.setSelection(-1,0,"cell"+t))return void this.selectionDidChange();t-=1}}return 1===this.path.length?(this.suppressChangeNotifications||!this.config.onMoveOutOf||this.config.onMoveOutOf.bind(this)(-1))&&(this.path[0].offset=this.root.body.length-1):(this.path.pop(),this.setSelection(this.anchorOffset()-1)),void this.selectionDidChange()}const i=this.anchor();if(!i.captureSelection){let t;if(i.array){t="";const e=Pe(i.array);let s=e-1;for(;!t&&s<e;)qe(i.array,s)&&(t="cell"+s.toString()),s-=1;return s+=1,this.path.push({relation:t,offset:qe(i.array,s).length-1}),void this.setSelection(-1,0,t)}for(t="superscript";t;){if(Array.isArray(i[t]))return this.path.push({relation:t,offset:i[t].length-1}),void this.setSelection(-1,0,t);t=e[t]}}this.setSelection(this.anchorOffset()-1),!t.iterateAll&&this.sibling(0)&&this.sibling(0).skipBoundary&&this.previous(t)},Fe.prototype.move=function(t,e){const i=(e=e||{extend:!1}).extend||!1;if(this.removeSuggestion(),i)this.extend(t,e);else{const e=ze(this);if(t>0)for(this.collapseForward()&&t--;t>0;)this.next(),t--;else if(t<0)for(this.collapseBackward()&&t++;0!==t;)this.previous(),t++;this._announce("move",e)}},Fe.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const i=this.relation();if("denom"===i)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"numer"),this._announce("moveUp");else if(this.parent().array){let e=Ee(this.parent().array,i);(e=Be(this.parent().array,e,-1))&&qe(e)?(this.path[this.path.length-1].relation="cell"+De(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},Fe.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const i=this.relation();if("numer"===i)e?(this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange()):this.setSelection(this.anchorOffset(),0,"denom"),this._announce("moveDown");else if(this.parent().array){let e=Ee(this.parent().array,i);(e=Be(this.parent().array,e,1))&&qe(e)?(this.path[this.path.length-1].relation="cell"+De(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},Fe.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=ze(this),a=e+(i=this.extent+t);if(a<0&&0!==i){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",s);e=this.path[this.path.length-1].offset,i=this.extent}else if(a>=this.siblings().length){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.path[this.path.length-1].offset-=1,this.setExtent(1),this.selectionDidChange(),void this._announce("move",s);this.isCollapsed()&&(e-=1),i-=1}this.setSelection(e,i),this._announce("move",s)},Fe.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=ze(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(i&&(n=Math.min(Math.max(0,n),a.length-1)),n<0||n>=a.length)this.move(t,e);else{if(a[n]&&"text"===a[n].mode){if((n=this.wordBoundaryOffset(n,t))<0&&!i)return void this.setSelection(0);if(n>a.length)return this.setSelection(a.length-1),void this.move(t,e)}else{const e=a[n]?a[n].type:"";if("mopen"===e&&t>0||"mclose"===e&&t<0){let i="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n<a.length&&0!==i;)"mopen"===a[n].type?i+=1:"mclose"===a[n].type&&(i-=1),n+=t;0!==i&&(n=o+t),t>0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(i){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",s)}},Fe.prototype.jump=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,s.length-1));const o=t<0?0:s.length-1;i?this.extend(o-a):this.move(o-a)},Fe.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=ze(this),a=[{relation:"body",offset:this.path[0].offset}];let o;i?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset<this.siblings().length-1&&(o=this.siblings().length-1-a[0].offset):(a[0].offset=t<0?0:this.root.body.length-1,o=0),this.setPath(a,o),this._announce("move",s)},Fe.prototype.leap=function(t,e){t=(t=t||1)<0?-1:1,e=e||!0;const i=this.suppressChangeNotifications;this.suppressChangeNotifications=!0;const s=ze(this),a=this.extent;this.move(t),"placeholder"===this.anchor().type&&this.move(t);const o=this.filter((t,e)=>"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(s,a),e)if(this.config.onTabOutOf)this.config.onTabOutOf(this.target,t>0?"forward":"backward");else if(document.activeElement){const e='a[href]:not([disabled]),\n                    button:not([disabled]),\n                    textarea:not([disabled]),\n                    input[type=text]:not([disabled]),\n                    select:not([disabled]),\n                    [contentEditable="true"],\n                    [tabindex]:not([disabled]):not([tabindex="-1"])',i=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let s=i.indexOf(document.activeElement)+t;s<0&&(s=i.length-1),s>=i.length&&(s=0),i[s].focus()}return!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",s),this.selectionDidChange(),this.suppressChangeNotifications=i,!0},Fe.prototype.anchorMode=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t){if("commandliteral"===t.type||"command"===t.type)return"command";e=t.mode}let i=1,s=this.ancestor(i);for(;!e&&s;)s&&(e=s.mode),i+=1,s=this.ancestor(i);return e},Fe.prototype.anchorStyle=function(){const t=this.isCollapsed()?this.anchor():this.sibling(1);let e;if(t&&"first"!==t.type){if("commandliteral"===t.type||"command"===t.type)return{};e={color:t.color,backgroundColor:t.backgroundColor,fontFamily:t.fontFamily,fontShape:t.fontShape,fontSeries:t.fontSeries,fontSize:t.fontSize}}let i=1,s=this.ancestor(i);for(;!e&&s;)s&&(e={color:s.color,backgroundColor:s.backgroundColor,fontFamily:s.fontFamily,fontShape:s.fontShape,fontSeries:s.fontSeries,fontSize:s.fontSize}),i+=1,s=this.ancestor(i);return e},Fe.prototype.simplifyParen=function(t){if(t&&this.config.removeExtraneousParentheses){for(let e=0;t[e];e++)if("leftright"===t[e].type&&"("===t[e].leftDelim&&Array.isArray(t[e].body)){let i=0,s=0,a=0;for(let o=0;t[e].body;o++)"genfrac"===t[e].body[o].type&&(i++,s=o),"first"!==t[e].body[o].type&&a++;0===a&&1===i&&(t[e]=t[e].body[s])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=Ke(t.numer),t.denom=Ke(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Ke(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Ke(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Ke(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Ke(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Ke(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Ke(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Pe(t.array);e>=0;e--)this.simplifyParen(qe(t.array,e))})}},Fe.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const i=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const s=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,e.insertionMode||(e.insertionMode="replaceSelection"),e.selectionMode||(e.selectionMode="placeholder"),e.format||(e.format="auto"),e.macros=e.macros||this.config.macros;const a=e.mode||this.anchorMode();let o;const n=[this.getSelectedAtoms()];void 0!==e.placeholder&&(n["?"]=e.placeholder),"replaceSelection"!==e.insertionMode||this.isCollapsed()?"replaceAll"===e.insertionMode?(this.root.body.splice(1),this.path=[{relation:"body",offset:0}],this.extent=0):"insertBefore"===e.insertionMode?this.collapseBackward():"insertAfter"===e.insertionMode&&this.collapseForward():this.delete_();const r=this.siblings(),l=this.startOffset();if(l+1<r.length&&r[l+1]&&"placeholder"===r[l+1].type?this.delete_(1):l>0&&r[l]&&"placeholder"===r[l].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ne(t,{...this.config,format:"ASCIIMath"}),o=be.parseTokens(x.tokenize(t),"math",null,e.macros,!1),this.simplifyParen(o);else if("text"!==a&&"auto"===e.format)if("command"===a){o=[];for(const e of t)Pt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new de.MathAtom("command","command",e))}else""===t?o=[new de.MathAtom("command","command","\\")]:(t=Ne(t,this.config),n[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),n[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-n[0].length),Array.isArray(n[0])&&0===n[0].length&&(n[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=be.parseTokens(x.tokenize(t),a,n,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=be.parseTokens(x.tokenize(t),a,n,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=be.parseTokens(x.tokenize(t),"text",n,e.macros,!1));!function t(e,i){e&&i&&(Array.isArray(e)?e.forEach(e=>t(e,i)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(i),t(e.body,i),t(e.numer,i),t(e.denom,i),t(e.index,i),t(e.overscript,i),t(e.underscript,i),t(e.subscript,i),t(e.superscript,i))))}(o,e.style);const c=this.parent();if(this.config.removeExtraneousParentheses&&c&&"leftright"===c.type&&"("===c.leftDelim&&o&&1===o.length&&"genfrac"===o[0].type?(this.path.pop(),this.siblings()[this.anchorOffset()]=o[0]):Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(o)),this.insertFirstAtom(),this.suppressChangeNotifications=s,"placeholder"===e.selectionMode){let t=[];for(const e of o)t=t.concat(e.filter(t=>"placeholder"===t.type));0!==t.length&&this.leap(1,!1)?this._announce("move"):this.setSelection(this.anchorOffset()+o.length)}else"before"===e.selectionMode||("after"===e.selectionMode?this.setSelection(this.anchorOffset()+o.length):"item"===e.selectionMode&&this.setSelection(this.anchorOffset(),o.length));this.contentDidChange(),this.suppressChangeNotifications=i},Fe.prototype._insertSmartFence=function(t,e){const i=this.parent();if("leftright"===i.type&&"|"!==i.leftDelim&&/\||\\vert|\\Vert|\\mvert|\\mid/.test(t))return this.insert("\\,\\middle"+t+"\\, ",{mode:"math",format:"latex",style:e}),!0;"{"!==t&&"\\{"!==t||(t="\\lbrace"),"}"!==t&&"\\}"!==t||(t="\\rbrace"),"["!==t&&"\\["!==t||(t="\\lbrack"),"]"!==t&&"\\]"!==t||(t="\\rbrack");const s=Pt.RIGHT_DELIM[t];if(s&&("leftright"!==i.type||"|"!==i.leftDelim)){let i="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;i=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",i+=a?"?":s;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(i,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;for(const e in Pt.RIGHT_DELIM)Pt.RIGHT_DELIM.hasOwnProperty(e)&&t===Pt.RIGHT_DELIM[e]&&(a=e);if(a){if(i&&"leftright"===i.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),i.rightDelim=t,this.move(1),this.contentDidChange(),!0;const s=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==s[a].type||"?"!==s[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),s[a].rightDelim=t,s[a].body=s[a].body.concat(s.slice(a+1,this.endOffset()+1)),s.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(i&&"leftright"===i.type&&"?"===i.rightDelim){this.contentWillChange(),i.rightDelim=t;const e=s.slice(this.endOffset()+1);return s.splice(this.endOffset()+1),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.endOffset()+1,0].concat(e)),this.contentDidChange(),!0}const o=this.ancestor(2);return o&&"leftright"===o.type&&"?"===o.rightDelim&&this.endOffset()===s.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},Fe.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i<e.end&&!t[i].suggestion;)i++;this.setSelection(i-1)},Fe.prototype.removeSuggestion=function(){const t=this.siblings();for(let e=t.length-1;e>=0;e--)t[e].suggestion&&t.splice(e,1)},Fe.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new de.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},Fe.prototype._deleteAtoms=function(t){t>0?this.siblings().splice(this.anchorOffset()+1,t):(this.siblings().splice(this.anchorOffset()+t+1,-t),this.setSelection(this.anchorOffset()+t))},Fe.prototype.delete=function(t){if(0===(t=t||0))this.delete_(0);else if(t>0)for(;t>0;)this.delete_(1),t--;else for(;t<0;)this.delete_(-1),t++},Fe.prototype.delete_=function(t){this.contentWillChange(),this.selectionWillChange();const e=this.suppressChangeNotifications;if(this.suppressChangeNotifications=!0,t=(t=t||0)<0?-1:t>0?1:t,this.removeSuggestion(),this.parent().array&&t<0&&0===this.startOffset()){const t=this.parent().array;if(function(t){const e={col:0,row:0};for(;e.row<t.length&&!qe(t,e);)e.row+=1;return qe(t,e)?"cell"+De(t,e):""}(t)===this.relation()){const e=function(t,e,i){e||(e=[";",","]);let s,a=[];for(const i of t)s?a.push(s):s=new de.MathAtom("math","mpunct",e[0],void 0),a=a.concat(Ie(i,e[1]));return a}(t);this.path.pop(),this.siblings().splice(this.anchorOffset(),1,...e),this.setSelection(this.anchorOffset()-1,e.length)}else{const e=Ee(t,this.relation());if(0===e.col){const i=Be(t,e,-1);i.col=t[i.row].length-1,this.path[this.path.length-1].relation="cell"+De(t,i);const s=t[i.row][i.col].length,a=Ie(t[e.row]);t[i.row][i.col]=t[i.row][i.col].concat(a),this.setSelection(s-1,a.length),function(t,e){t.splice(e,1)}(t,e.row)}else if(0===function(t,e){let i=0;const s={col:e,row:0};for(;s.row<t.length;){const e=qe(t,s);if(e&&e.length>0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(i+=1)}s.row+=1}return i}(t,e.col)){!function(t,e){let i=0;for(;i<t.length;)t[i][e]&&t[i].splice(e,1),i+=1}(t,e.col),e.col-=1,this.path[this.path.length-1].relation="cell"+De(t,e);const i=t[e.row][e.col];this.setSelection(i.length-1,0)}}return this.suppressChangeNotifications=e,this.selectionDidChange(),void this.contentDidChange()}const i=this.siblings();if(this.isCollapsed()){const e=this.anchorOffset();if(t<0)if(0!==e){const t=this.sibling(0);"leftright"===t.type?(t.rightDelim="?",this.move(-1)):!t.captureSelection&&/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(t.type)?this.move(-1):(this._announce("delete",null,i.slice(e,e+1)),i.splice(e,1),this.setSelection(e-1))}else{const t=this.relation();if("superscript"===t||"subscript"===t){const e=this.parent()[t].filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.parent()[t]=null,this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(e)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: "+t)}else if("denom"===t){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: denominator")}else if("body"===t){const t=this.siblings().filter(t=>"placeholder"!==t.type);this.path.length>1&&(t.shift(),this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(t)),this.setSelection(this.anchorOffset()-1),this._announce("deleted: root"))}else this.move(-1),this.delete(-1)}else if(t>0)if(e!==i.length-1)/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,i.slice(e+1,e+2)),i.splice(e+1,1));else 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li={numeric:{tooltip:"keyboard.tooltip.numeric",layer:"math",label:"123",layers:["math"]},roman:{tooltip:"keyboard.tooltip.roman",layer:"lower-roman",label:"ABC",layers:["lower-roman","upper-roman","symbols"]},greek:{tooltip:"keyboard.tooltip.greek",layer:"lower-greek",label:"&alpha;&beta;&gamma;",classes:"tex-math",layers:["lower-greek","upper-greek"]},functions:{tooltip:"keyboard.tooltip.functions",layer:"functions",label:"<i>f</i>&thinsp;()",classes:"tex",layers:["functions"]},command:{tooltip:"keyboard.tooltip.command",command:"enterCommandMode",label:"<svg><use xlink:href='#svg-command' /></svg>",layers:["lower-command","upper-command","symbols-command"]},style:{tooltip:"keyboard.tooltip.style",layer:"style",label:"<b>b</b><i>i</i>𝔹"}},ci={"\\varphi ":{label:"&Phi;",insert:"\\Phi "},"\\varsigma ":{label:"&Sigma;",insert:"\\Sigma "},"\\epsilon ":{label:"&#x0190;",insert:'{\\char"0190}'},"\\rho ":{label:"&#x3A1",insert:'{\\char"3A1}'},"\\tau ":{label:"&#x3A4;",insert:'{\\char"3A4}'},"\\upsilon ":{label:"&Upsilon;",insert:"\\Upsilon "},"\\theta ":{label:"&Theta;",insert:"\\Theta "},"\\iota ":{label:"&Iota;",insert:'{\\char"399}'},"\\omicron ":{label:"&#x039F;",insert:'{\\char"39F}'},"\\pi ":{label:"&Pi;",insert:"\\Pi "},"\\alpha ":{label:"&Alpha;",insert:'{\\char"391}'},"\\sigma ":{label:"&Sigma;",insert:"\\Sigma "},"\\delta ":{label:"&Delta;",insert:"\\Delta "},"\\phi ":{label:"&#x03a6;",insert:"\\Phi "},"\\gamma ":{label:"&Gamma;",insert:"\\Gamma "},"\\eta ":{label:"&Eta;",insert:'{\\char"397}'},"\\xi ":{label:"&Xi;",insert:"\\Xi "},"\\kappa ":{label:"&Kappa;",insert:'{\\char"39A}'},"\\lambda ":{label:"&Lambda;",insert:"\\Lambda "},"\\zeta ":{label:"&Zeta;",insert:'{\\char"396}'},"\\chi ":{label:"&Chi;",insert:'{\\char"3A7}'},"\\psi ":{label:"&Psi;",insert:"\\Psi "},"\\omega ":{label:"&Omega;",insert:"\\Omega "},"\\beta ":{label:"&Beta;",insert:'{\\char"392}'},"\\nu ":{label:"&Nu;",insert:'{\\char"39D}'},"\\mu ":{label:"&Mu;",insert:'{\\char"39C}'}},hi={0:["\\emptyset","\\varnothing","\\infty",{latex:"#?_0",insert:"#@_0"},"\\circ","\\bigcirc","\\bullet"],2:["\\frac{1}{2}",{latex:"#?^2",insert:"#@^2"}],3:["\\frac{1}{3}",{latex:"#?^3",insert:"#@^3"}],".":[",",";","\\colon",{latex:":",aside:"ratio"},{latex:"\\cdotp",aside:"center dot",classes:"box"},{latex:"\\cdots",aside:"center ellipsis",classes:"box"},{latex:"\\ldotp",aside:"low dot",classes:"box"},{latex:"\\ldots",aside:"low ellipsis",classes:"box"},{latex:"\\vdots",aside:"",classes:"box"},{latex:"\\ddots",aside:"",classes:"box"},"\\odot","\\oslash","\\circledcirc"],"*":["\\cdot","\\ast","\\star","\\bigstar","\\ltimes","\\rtimes","\\rightthreetimes","\\leftthreetimes","\\intercal","\\prod",{latex:"\\prod_{n\\mathop=0}^{\\infty}",classes:"small"}],"+":["\\pm","\\mp","\\sum",{latex:"\\sum_{n\\mathop=0}^{\\infty}",classes:"small"},"\\dotplus","\\oplus"],"-":["\\pm","\\mp","\\ominus","\\vert #0  \\vert"],"/":["\\divideontimes","/","\\div"],"(":["\\left( #0\\right)","\\left[ #0\\right]","\\left\\{ #0\\right\\}","\\left\\langle #0\\right\\rangle","\\lfloor","\\llcorner","(","\\lbrack","\\lvert","\\lVert","\\lgroup","\\langle","\\lceil","\\ulcorner","\\lmoustache","\\lbrace"],")":["\\rfloor","\\lrcorner",")","\\rbrack","\\rvert","\\rVert","\\rgroup","\\rangle","\\rceil","\\urcorner","\\rmoustache","\\rbrace"],"=":["\\cong","\\asymp","\\equiv","\\differencedelta","\\varpropto","\\thickapprox","\\approxeq","\\thicksim","\\backsim","\\eqsim","\\simeq","\\Bumpeq","\\bumpeq","\\doteq","\\Doteq","\\fallingdotseq","\\risingdotseq","\\coloneq","\\eqcirc","\\circeq","\\triangleq","\\between"],"!=":["\\neq","\\ncong","","\\nsim"],"<":["\\leq","\\leqq","\\lneqq","\\ll","\\nless","\\nleq","\\precsim","\\lesssim","\\lessgtr","\\prec","\\preccurlyeq","\\lessdot","\\nprec"],">":["\\geq","\\geqq","\\gneqq","\\gg","\\ngtr","\\ngeq","\\succsim","\\gtrsim","\\gtrless","\\succ","\\succcurlyeq","\\gtrdot","\\nsucc"],set:["\\in","\\owns","\\subset","\\nsubset","\\supset","\\nsupset"],"!set":["\\notin","\\backepsilon"],subset:[],supset:[],infinity:["\\aleph_0","\\aleph_1","\\omega","\\mathfrak{m}"],"numeric-pi":["\\prod","\\theta","\\rho","\\sin","\\cos","\\tan"],ee:["\\times 10^{#?}","\\ln","\\ln_{10}","\\log"],"^":["_{#?}"],int:[{latex:"\\int_{#?}^{#?}",classes:"small"},{latex:"\\int",classes:"small"},{latex:"\\smallint",classes:"small"},{latex:"\\iint",classes:"small"},{latex:"\\iiint",classes:"small"},{latex:"\\oint",classes:"small"},{latex:"\\dfrac{\\rd}{\\rd x}",classes:"small"},{latex:"\\frac{\\partial}{\\partial x}",classes:"small"},"\\capitalDifferentialD","\\rd","\\partial"],nabla:["\\nabla\\times","\\nabla\\cdot","\\nabla^{2}"],"!":["!!","\\Gamma","\\Pi"],accents:["\\bar{#@}","\\vec{#@}","\\hat{#@}","\\check{#@}","\\dot{#@}","\\ddot{#@}","\\mathring{#@}","\\breve{#@}","\\acute{#@}","\\tilde{#@}","\\grave{#@}"],A:[{latex:"\\aleph",aside:"aleph"},{latex:"\\forall",aside:"for all"}],a:[{latex:"\\aleph",aside:"aleph"},{latex:"\\forall",aside:"for all"}],b:[{latex:"\\beth",aside:"beth"}],B:[{latex:"\\beth",aside:"beth"}],c:[{latex:"\\C",aside:"set of complex numbers"}],d:[{latex:"\\daleth",aside:"daleth"}],D:[{latex:"\\daleth",aside:"daleth"}],e:[{latex:"\\exponentialE",aside:"exponential e"},{latex:"\\exists",aside:"there is"},{latex:"\\nexists",aside:"there isn’t"}],g:[{latex:"\\gimel",aside:"gimel"}],G:[{latex:"\\gimel",aside:"gimel"}],h:[{latex:"\\hbar",aside:"h bar"},{latex:"\\hslash",aside:"h slash"}],i:[{latex:"\\imaginaryI",aside:"imaginary i"}],j:[{latex:"\\imaginaryJ",aside:"imaginary j"}],l:[{latex:"\\ell",aside:"ell"}],n:[{latex:"\\N",aside:"set of natural numbers"}],p:[{latex:"\\P",aside:"set of primes"}],q:[{latex:"\\Q",aside:"set of rational numbers"}],r:[{latex:"\\R",aside:"set of real numbers"}],z:[{latex:"\\Z",aside:"set of integers"}],"x-var":["y","z","t","r",{latex:"f(#?)",classes:"small"},{latex:"g(#?)",classes:"small"},"x^2","x^n","x_n","x_{n+1}","x_i","x_{i+1}"],"n-var":["i","j","p","k","a","u"],ii:["\\Re","\\Im","\\imaginaryJ","\\Vert #0 \\Vert"],logic:[{latex:"\\exists",aside:"there is"},{latex:"\\nexists",aside:"there isn’t"},{latex:"\\ni",aside:"such that"},{latex:"\\Colon",aside:"such that"},{latex:"\\implies",aside:"implies"},{latex:"\\impliedby",aside:"implied by"},{latex:"\\iff",aside:"if and only if"},{latex:"\\land",aside:"and"},{latex:"\\lor",aside:"or"},{latex:"\\oplus",aside:"xor"},{latex:"\\lnot",aside:"not"},{latex:"\\downarrow",aside:"nor"},{latex:"\\uparrow",aside:"nand"},{latex:"\\curlywedge",aside:"nor"},{latex:"\\bar\\curlywedge",aside:"nand"},{latex:"\\therefore",aside:"therefore"},{latex:"\\because",aside:"because"},{latex:"^\\biconditional",aside:"biconditional"},"\\leftrightarrow","\\Leftrightarrow","\\to","\\models","\\vdash","\\gets","\\dashv","\\roundimplies"],"set-operators":["\\cap","\\cup","\\setminus","\\smallsetminus","\\complement"],"set-relations":["\\in","\\notin","\\ni","\\owns","\\subset","\\supset","\\subseteq","\\supseteq","\\subsetneq","\\supsetneq","\\varsubsetneq","\\subsetneqq","\\nsubset","\\nsupset","\\nsubseteq","\\nsupseteq"],space:[{latex:'\\char"203A\\!\\char"2039',insert:"\\!",aside:"negative thin space<br>⁻³⧸₁₈ em"},{latex:'\\unicode{"203A}\\,\\unicode{"2039}',insert:"\\,",aside:"thin space<br>³⧸₁₈ em"},{latex:'\\unicode{"203A}\\:\\unicode{"2039}',insert:"\\:",aside:"medium space<br>⁴⧸₁₈ em"},{latex:'\\unicode{"203A}\\;\\unicode{"2039}',insert:"\\;",aside:"thick space<br>⁵⧸₁₈ em"},{latex:'\\unicode{"203A}\\ \\unicode{"2039}',insert:"\\ ",aside:"⅓ em"},{latex:'\\unicode{"203A}\\enspace\\unicode{"2039}',insert:"\\enspace",aside:"½ em"},{latex:'\\unicode{"203A}\\quad\\unicode{"2039}',insert:"\\quad",aside:"1 em"},{latex:'\\unicode{"203A}\\qquad\\unicode{"2039}',insert:"\\qquad",aside:"2 em"}],delete:[{label:'<span class="warning"><svg><use xlink:href="#svg-trash" /></svg></span>',command:'"deleteAll"'}],"->|":[]};let di={};const pi={math:"\n        <div class='rows'>\n            <ul>\n                <li class='keycap tex' data-alt-keys='x-var'><i>x</i></li>\n                <li class='keycap tex' data-alt-keys='n-var'><i>n</i></li>\n                <li class='separator w5'></li>\n                <row name='numpad-1'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-key='ee' data-alt-keys='ee'>e</li>\n                <li class='keycap tex' data-key='ii' data-alt-keys='ii'>i</li>\n                <li class='keycap tex' data-latex='\\pi' data-alt-keys='numeric-pi'></li>\n            </ul>\n            <ul>\n                <li class='keycap tex' data-key='<' data-alt-keys='<'>&lt;</li>\n                <li class='keycap tex' data-key='>' data-alt-keys='>'>&gt;</li>\n                <li class='separator w5'></li>\n                <row name='numpad-2'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='x2' data-insert='#@^{2}'><span><i>x</i>&thinsp;²</span></li>\n                <li class='keycap tex' data-alt-keys='^' data-insert='#@^{#?}'><span><i>x</i><sup>&thinsp;<small>&#x2b1a;</small></sup></span></li>\n                <li class='keycap tex' data-alt-keys='sqrt' data-insert='\\sqrt{#0}' data-latex='\\sqrt{#0}'></li>\n            </ul>\n            <ul>\n                <li class='keycap tex' data-alt-keys='(' >(</li>\n                <li class='keycap tex' data-alt-keys=')' >)</li>\n                <li class='separator w5'></li>\n                <row name='numpad-3'/>\n                <li class='separator w5'></li>\n                <li class='keycap tex small' data-alt-keys='int' data-latex='\\int_0^\\infty'><span></span></li>\n                <li class='keycap tex' data-latex='\\forall' data-alt-keys='logic' ></li>\n                <li class='action font-glyph bottom right' data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'>&#x232b;</li></ul>\n            </ul>\n            <ul>\n                <li class='keycap' data-alt-keys='foreground-color' data-command='[\"applyStyle\",{\"color\":\"#cc2428\"}]'><span style='border-radius: 50%;width:22px;height:22px; border: 3px solid #cc2428; box-sizing: border-box'></span></li>\n                <li class='keycap' data-alt-keys='background-color' data-command='[\"applyStyle\",{\"backgroundColor\":\"#fff590\"}]'><span style='border-radius: 50%;width:22px;height:22px; background:#fff590; box-sizing: border-box'></span></li>\n                <li class='separator w5'></li>\n                <row name='numpad-4'/>\n                <li class='separator w5'></li>\n                <arrows/>\n            </ul>\n        </div>\n    ","lower-roman":"\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <row name='lower-1' shift-layer='upper-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <row name='lower-2'  shift-layer='upper-roman''/>\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <row name='lower-3'  shift-layer='upper-roman''/>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols'>&infin;≠</li>\n                <li class='keycap' data-alt-keys=','>,</li>\n                <li class='keycap w50' data-key=' ' data-alt-keys='space'>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>","upper-roman":"\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <row name='upper-1'  shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <row name='upper-2' shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <row name='upper-3' shift-layer='lower-roman'/>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='symbols'>&infin;≠</li>\n                <li class='keycap' data-alt-keys='.'>;</li>\n                <li class='keycap w50' data-key=' '>&nbsp;</li>\n                <arrows/>\n            </ul>\n        </div>",symbols:"\n        <div class='rows'>\n            <ul>\n                <row name='numpad-1' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\lbrace '>{</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rbrace '>}</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='set' data-insert='\\in '>&#x2208;</li>\n                <li class='keycap tex' data-alt-keys='!set' data-insert='\\notin '>&#x2209;</li>\n                <li class='keycap tex' data-insert='\\Re '>&#x211c;<aside>Real</aside></li>\n                <li class='keycap tex' data-insert='\\Im '>&#x2111;<aside>Imaginary</aside></li>\n                <li class='keycap w15' data-insert='\\ulcorner#0\\urcorner '><span><sup>&#x250c;</sup><span><span style='color:#ddd'>o</span><sup>&#x2510;</sup></span><aside>ceil</aside></li>\n                <li class='keycap tex' data-alt-keys='nabla' data-insert='\\nabla '>&#x2207;<aside>nabla</aside></li>\n                <li class='keycap tex' data-alt-keys='infinity' data-insert='\\infty '>&#x221e;</li>\n\n            </ul>\n            <ul>\n                <row name='numpad-2' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\lbrack '>[</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rbrack '>]</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-alt-keys='subset' data-insert='\\subset '>&#x2282;</li>\n                <li class='keycap tex' data-alt-keys='supset' data-insert='\\supset '>&#x2283;</li>\n                <li class='keycap tex' data-key='!' data-alt-keys='!'>!<aside>factorial</aside></li>\n                <li class='keycap' data-insert='^{\\prime} '><span><sup><span><span style='color:#ddd'>o</span>&#x2032</sup></span><aside>prime</aside></li>\n                <li class='keycap w15' data-insert='\\llcorner#0\\lrcorner '><span><sub>&#x2514;</sub><span style='color:#ddd'>o</span><sub>&#x2518;</sub></span><aside>floor</aside></li>\n                <li class='keycap tex' data-insert='\\partial '>&#x2202;<aside>partial<br>derivative</aside></li>\n                <li class='keycap tex' data-insert='\\emptyset '>&#x2205;<aside>empty set</aside></li>\n\n            </ul>\n            <ul>\n                <row name='numpad-3' class='if-wide'/>\n                <li class='keycap tex' data-alt-keys='(' data-insert='\\langle '>&#x27e8;</li>\n                <li class='keycap tex' data-alt-keys=')' data-insert='\\rangle '>&#x27e9;</li>\n                <li class='separator w5'></li>\n                <li class='keycap tex' data-insert='\\subseteq '>&#x2286;</li>\n                <li class='keycap tex' data-insert='\\supseteq '>&#x2287;</li>\n                <li class='keycap tex' data-alt-keys='accents' data-insert='\\vec{#@}' data-latex='\\vec{#?}' data-aside='vector'></li>\n                <li class='keycap tex' data-alt-keys='accents' data-insert='\\bar{#@}' data-latex='\\bar{#?}' data-aside='bar'></li>\n                <li class='keycap tex' data-alt-keys='absnorm' data-insert='\\lvert #@ \\rvert ' data-latex='\\lvert #? \\rvert' data-aside='abs'></li>\n                <li class='keycap tex' data-insert='\\ast '>&#x2217;<aside>asterisk</aside></li>\n\n                <li class='action font-glyph bottom right w15'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <row name='numpad-4' class='if-wide'/>\n                <li class='layer-switch font-glyph modifier bottom left' data-layer='lower-roman'>abc</li>\n                <li class='keycap tex' data-insert='\\cdot '>&#x22c5;<aside>centered dot</aside></li>\n                <li class='keycap tex' data-insert='\\colon '>:<aside>colon</aside></li>\n                <li class='keycap tex' data-insert='\\circ '>&#x2218;<aside>circle</aside></li>\n                <li class='keycap tex' data-insert='\\approx '>&#x2248;<aside>approx.</aside></li>\n                <li class='keycap tex' data-insert='\\ne '>&#x2260;</li>\n                <li class='keycap tex' data-insert='\\pm '>&#x00b1;</li>\n                <arrows/>\n            </ul>\n        </div>","lower-greek":"\n        <div class='rows'>\n            <ul><li class='keycap tex' data-insert='\\varphi '><i>&#x03c6;</i><aside>phi var.</aside></li>\n                <li class='keycap tex' data-insert='\\varsigma '><i>&#x03c2;</i><aside>sigma var.</aside></li>\n                <li class='keycap tex' data-insert='\\epsilon '><i>&#x03f5;</i></li>\n                <li class='keycap tex' data-insert='\\rho '><i>&rho;</i></li>\n                <li class='keycap tex' data-insert='\\tau '><i>&tau;</i></li>\n                <li class='keycap tex' data-insert='\\upsilon '><i>&upsilon;</i></li>\n                <li class='keycap tex' data-insert='\\theta '><i>&theta;</i></li>\n                <li class='keycap tex' data-insert='\\iota '><i>&iota;</i></li>\n                <li class='keycap tex' data-insert='\\omicron '>&omicron;</i></li>\n                <li class='keycap tex' data-insert='\\pi '><i>&pi;</i></li>\n            </ul>\n            <ul><li class='keycap tex' data-insert='\\alpha ' data-shifted='&Alpha;' data-shifted-command='[\"insert\",\"{\\\\char\\\"391}\"]'><i>&alpha;</i></li>\n                <li class='keycap tex' data-insert='\\sigma '><i>&sigma;</i></li>\n                <li class='keycap tex' data-insert='\\delta '><i>&delta;</i></li>\n                <li class='keycap tex' data-insert='\\phi '><i>&#x03d5;</i></i></li>\n                <li class='keycap tex' data-insert='\\gamma '><i>&gamma;</i></li>\n                <li class='keycap tex' data-insert='\\eta '><i>&eta;</i></li>\n                <li class='keycap tex' data-insert='\\xi '><i>&xi;</i></li>\n                <li class='keycap tex' data-insert='\\kappa '><i>&kappa;</i></li>\n                <li class='keycap tex' data-insert='\\lambda '><i>&lambda;</i></li>\n            </ul>\n            <ul><li class='shift modifier font-glyph bottom left w15 layer-switch' data-layer='upper-greek'>&#x21e7;</li>\n                <li class='keycap tex' data-insert='\\zeta '><i>&zeta;</i></li>\n                <li class='keycap tex' data-insert='\\chi '><i>&chi;</i></li>\n                <li class='keycap tex' data-insert='\\psi '><i>&psi;</i></li>\n                <li class='keycap tex' data-insert='\\omega '><i>&omega;</i></li>\n                <li class='keycap tex' data-insert='\\beta '><i>&beta;</i></li>\n                <li class='keycap tex' data-insert='\\nu '><i>&nu;</i></li>\n                <li class='keycap tex' data-insert='\\mu '><i>&mu;</i></li>\n                <li class='action font-glyph bottom right w15'\n                    data-shifted='<span class=\"warning\"><svg><use xlink:href=\"#svg-trash\" /></svg></span>'\n                    data-shifted-command='\"deleteAll\"'\n                    data-alt-keys='delete' data-command='[\"performWithFeedback\",\"deletePreviousChar\"]'\n                >&#x232b;</li>\n            </ul>\n            <ul>\n                <li class='keycap ' data-key=' '>&nbsp;</li>\n                <li class='keycap'>,</li>\n                <li class='keycap tex' data-insert='\\varepsilon '><i>&#x03b5;</i><aside>epsilon var.</aside></li>\n                <li class='keycap tex' data-insert='\\vartheta '><i>&#x03d1;</i><aside>theta var.</aside></li>\n                <li class='keycap tex' data-insert='\\varkappa '><i>&#x3f0;</i><aside>kappa var.</aside></li>\n                <li class='keycap tex' data-insert='\\varpi '><i>&#x03d6;<aside>pi var.</aside></i></li>\n                <li class='keycap tex' data-insert='\\varrho '><i>&#x03f1;</i><aside>rho var.</aside></li>\n                <arrows/>\n            </ul>\n        </div>","upper-greek":"\n        <div class='rows'>\n            <ul><li class='keycap tex' data-insert='\\Phi '>&Phi;<aside>phi</aside></li>\n                <li class='keycap tex' data-insert='\\Sigma '>&Sigma;<aside>sigma</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"0190}'>&#x0190;<aside>epsilon</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A1}'>&#x3A1;<aside>rho</aside></li>\n                <li class='keycap tex' data-insert='{\\char\"3A4}'>&#x3A4;<aside>tau</aside></li>\n                <li class='keycap tex' 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if(t.subscript){let i=de.toSpeakableFragment(t.subscript,e);s+=' the product from <break time="200ms"/>'+(i=i.trim())+'<break time="200ms"/> of <break time="150ms"/>',r=!0}else s+=" the product  of ";else if("\\int"===a)if(t.superscript&&t.subscript){let a=de.toSpeakableFragment(t.superscript,e);a=a.trim();let o=de.toSpeakableFragment(t.subscript,e);s+=' the integral from <break time="200ms"/>'+i(o=o.trim())+'<break time="200ms"/> to <break time="200ms"/>'+i(a)+' <break time="200ms"/> of ',r=!0}else s+=' the integral of <break time="200ms"/> ';else if("string"==typeof t.body){s+=fs[t.body]||fs[t.latex.trim()]||" "+t.body}else t.latex&&t.latex.length>0&&("\\"===t.latex[0]?s+=" "+t.latex.substr(1):s+=" "+t.latex)}break;case"enclose":n=de.toSpeakableFragment(t.body,e),gs(t.body)?s+=" crossed out "+n+" , ":s+=" crossed out "+n+". 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i},ws.prototype.handleEvent=function(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}},ws.prototype.revertToOriginalContent=ws.prototype.$revertToOriginalContent=function(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,xs(this.textarea,"cut",this),xs(this.textarea,"copy",this),xs(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete 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e=this.mathlist.filter(function(t,e){return e.captureSelection?e.filter(t=>t.id===o).length>0:e.id===o});if(e&&e.length>0)if(s=ve.pathFromString(e[0]).path,0===i.bias){const e=a.getBoundingClientRect();t<e.left+e.width/2&&!a.classList.contains("ML__placeholder")&&(s[s.length-1].offset=Math.max(0,s[s.length-1].offset-1))}else i.bias<0&&(s[s.length-1].offset=Math.min(this.mathlist.siblings().length-1,Math.max(0,s[s.length-1].offset+i.bias)))}return s};let As=0;function Cs(t,e,i){const s=Object.assign({},t.config);return s.textToSpeechMarkup="",e+de.toSpeakableText(i,s)}function Ms(t,e,i,s){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>void 0)),t._resetKeystrokeBuffer()):"delete"===e?a=Cs(t,"deleted: ",s):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(i):"replacement"===e?a=Cs(t,"",t.mathlist.sibling(0)):"line"===e?(a=Cs(t,"",t.mathlist.root),t.accessibleNode.innerHTML='<math xmlns="http://www.w3.org/1998/Math/MathML">'+de.toMathML(t.mathlist.root,t.config)+"</math>",t.textarea.setAttribute("aria-label","after: "+a)):a=s?Cs(t,e+" ",s):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}ws.prototype._onPointerDown=function(t){const e=this;let i,s=!1,a=!1,o=!1;if(1!==t.buttons)return;function n(t){window.PointerEvent?(xs(e.field,"pointermove",h),xs(e.field,"pointerend pointerleave pointercancel",n),e.field.releasePointerCapture(t.pointerId)):(xs(e.field,"touchmove",h),xs(e.field,"touchend touchleave",n),xs(window,"mousemove",h),xs(window,"mouseup blur",n)),s=!1,clearInterval(c),e.element.querySelectorAll(".ML__scroller").forEach(t=>t.parentNode.removeChild(t)),t.preventDefault(),t.stopPropagation()}let r=!1,l=!1;const c=setInterval(()=>{r?e.field.scroll({top:0,left:e.field.scrollLeft-16}):l&&e.field.scroll({top:0,left:e.field.scrollLeft+16})},32);function h(t){const s=t.touches?t.touches[0].clientX:t.clientX,o=t.touches?t.touches[0].clientY:t.clientY,n="touch"===t.pointerType?20:5;if(Date.now()<m+500&&Math.abs(d-s)<n&&Math.abs(p-o)<n)return t.preventDefault(),void t.stopPropagation();const c=e.field.getBoundingClientRect();l=s>c.right,r=s<c.left;let h=i;window.PointerEvent?t.isPrimary||(h=e._pathFromPoint(t.clientX,t.clientY,{bias:0})):t.touches&&2===t.touches.length&&(h=e._pathFromPoint(t.touches[1].clientX,t.touches[1].clientY,{bias:0}));const u=e._pathFromPoint(s,o,{bias:s<=d?s===d?0:-1:1});u&&e.mathlist.setRange(h,u,{extendToWordBoundary:a})&&e._requestUpdate(),t.preventDefault(),t.stopPropagation()}const d=t.touches?t.touches[0].clientX:t.clientX,p=t.touches?t.touches[0].clientY:t.clientY,m=Date.now();Ss&&Math.abs(Ss.x-d)<5&&Math.abs(Ss.y-p)<5&&Date.now()<Ss.time+500?(As+=1,Ss.time=m):(Ss={x:d,y:p,time:m},As=1);const u=this.field.getBoundingClientRect();if(d>=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",(r=document.createElement("div")).className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",this.hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,(i=this._pathFromPoint(d,p,{bias:0}))&&(t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),(i=ve.clone(this.mathlist.path))[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||As>2?(n(t),3!==t.detail&&3!==As||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(bs(e.field,"pointermove",h),bs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(bs(window,"blur",n),t.touches?(bs(t.target,"touchmove",h),bs(t.target,"touchend",n)):(bs(window,"mousemove",h),bs(window,"mouseup",n))),2!==t.detail&&2!==As||(a=!0,this.mathlist.selectGroup_())))}else Ss=null;o&&this._requestUpdate(),t.preventDefault()},ws.prototype._onSelectionDidChange=function(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.hasFocus()&&this.textarea.select&&this.textarea.select()):(this.textarea.value="",this.textarea.setAttribute("aria-label",""));{const t=this.mode;this.mode=this.mathlist.anchorMode()||this.config.defaultMode,this.mode!==t&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),"command"===t&&"command"!==this.mode&&(oi.hidePopover(this),this.mathlist.removeCommandString())}oi.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)},ws.prototype._onContentDidChange=function(){this.undoManager.canRedo()?this.element.classList.add("can-redo"):this.element.classList.remove("can-redo"),this.undoManager.canUndo()?this.element.classList.add("can-undo"):this.element.classList.remove("can-undo"),"function"==typeof this.config.onContentDidChange&&this.config.onContentDidChange(this)},ws.prototype._nextAtomSpeechText=function(t){function e(t,e){return"body"===e.relation?{enclose:"cross out",leftright:"fence",surd:"square root",root:"math field"}[t.type]:{numer:"numerator",denom:"denominator",index:"index",body:"parent",subscript:"subscript",superscript:"superscript"}[e.relation]}const i=t?t.path:[],s=this.mathlist.path,a=s[s.length-1];let o="";for(;i.length>s.length;)o+="out of "+e(t.parent(),i[i.length-1])+"; ",i.pop();if(!this.mathlist.isCollapsed())return Cs(this,"",this.mathlist.getSelectedAtoms());const n=e(this.mathlist.parent(),a);0===a.offset&&(o+=(n?"start of "+n:"unknown")+": ");const r=this.mathlist.sibling(Math.max(1,this.mathlist.extent));return r?o+=Cs(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o},ws.prototype._announce=function(t,e,i){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,i)},ws.prototype._onFocus=function(){this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),oi.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())},ws.prototype._onBlur=function(){this.blurred||(this.blurred=!0,this.ariaLiveText.textContent="","onfocus"===this.config.virtualKeyboardMode&&this.hideVirtualKeyboard_(),this.complete_({discard:!0}),this._requestUpdate(),this.config.onBlur&&this.config.onBlur(this))},ws.prototype._onResize=function(){this.element.classList.remove("ML__isNarrowWidth","ML__isWideWidth","ML__isExtendedWidth"),window.innerWidth>=1024?this.element.classList.add("ML__isExtendedWidth"):window.innerWidth>=768?this.element.classList.add("ML__isWideWidth"):this.element.classList.add("ML__isNarrowWidth"),oi.updatePopoverPosition(this)},ws.prototype.toggleKeystrokeCaption_=function(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")},ws.prototype._showKeystroke=function(t){const e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const i=this.element.getBoundingClientRect();e.style.left=i.left+"px",e.style.top=i.top-64+"px",e.innerHTML="<span>"+(Le.stringify(t)||t)+"</span>"+e.innerHTML,e.style.visibility="visible",setTimeout(function(){e.childNodes.length>0&&e.removeChild(e.childNodes[e.childNodes.length-1]),0===e.childNodes.length&&(e.style.visibility="hidden")},3e3)}},ws.prototype.perform=ws.prototype.$perform=function(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=Pt.suggest(t);0===e.length?oi.hidePopover(this):oi.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i},ws.prototype.performWithFeedback_=function(t){return this.focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>void 0)):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>void 0)):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>void 0)):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>void 0)),this.perform(t)},ws.prototype.convertLastAtomsToText_=function(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let i=0,s=!1;for(this.mathlist.contentWillChange();!s;){const a=this.mathlist.sibling(i);(s=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a))||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()},ws.prototype.convertLastAtomsToMath_=function(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let i=0,s=!1;for(;!s;){const a=this.mathlist.sibling(i);(s=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a))||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()},ws.prototype.removeIsolatedSpace_=function(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}},ws.prototype.getTextBeforeAnchor_=function(){let t="",e=0,i=!1;for(;!i;){const s=this.mathlist.sibling(e);(i=!(s&&("text"===s.mode&&!s.type||"math"===s.mode&&/mord|textord|mpunct/.test(s.type))))||(t=s.body+t),e-=1}return t},ws.prototype.smartMode_=function(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()<this.mathlist.siblings().length-1)return!1;if(!e||e.ctrlKey||e.metaKey)return!1;const i=Ye.eventToChar(e);if(i.length>1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[\/_^]/.test(i));const s=this.getTextBeforeAnchor_()+i;if("text"===this.mode){if("Esc"===t||/[\/\\]/.test(i))return!0;if(/[\^_]/.test(i))return/(^|\s)[a-zA-Z][^_]$/.test(s)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[i];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(s))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(i))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(s))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(s)){this.convertLastAtomsToMath_(1);const t=this.mathlist.sibling(0);return t.body="⋅",t.autoFontFamily="cmr",t.latex="\\cdot",!0}if(/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(s))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(s))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(i))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(s)&&!/(dxd|abc|xyz|uvw)$/.test(s))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(s))return this.convertLastAtomsToText_(1),!0;if(/\?|\./.test(i))return!0}return!1},ws.prototype._onKeystroke=function(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let i,s,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ye.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a<e.length;){let t;if(this.keystrokeBufferStates[a]){const e=new Ue.EditableMathlist;e.root=de.makeRoot("math",be.parseTokens(x.tokenize(this.keystrokeBufferStates[a].latex),this.config.default,null,this.config.macros)),e.setPath(this.keystrokeBufferStates[a].selection),t=e.siblings()}else t=this.mathlist.siblings();i=Le.forString(this.mode,t,e.slice(a),this.config),a+=1}s=a-1,this.keystrokeBuffer+=t,this.keystrokeBufferStates.push(this.undoManager.save()),Le.startsWithString(e,this.config).length<=1?o=!0:this.config.inlineShortcutTimeout&&(this.keystrokeBufferResetTimer=setTimeout(()=>{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const s=this.mode;i?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==s&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(i||a||(a=Le.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const n=this.mathlist.parent();if("moveAfterParent"===a&&n&&"leftright"===n.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!i){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.perform(a)||i)&&i){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ye.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1},ws.prototype._onTypedText=function(t,e){if((e=e||{}).focus&&this.focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>void 0))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=Ye.charToEvent(e);if(!this.$keystroke(Ye.keyboardEventToString(i),i))return}let i="",s=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},a=g.splitGraphemes(t);for(const t of a)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),a=Pt.suggest(e+t);s=a.length>1,0===a.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),oi.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),a[0].match!==e+t&&this.mathlist.insertSuggestion(a[0].match,-a[0].match.length+e.length+1),i=a[0].match)}else if("math"===this.mode){const i={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(i){if("moveToSuperscript"===i){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===i&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),oi.showPopoverWithLatex(this,i,s)},ws.prototype._hash=function(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;i<e.length;i++)t=31*t+e.charCodeAt(i),t|=0;return Math.abs(t)},ws.prototype._requestUpdate=function(){this.dirty||(this.dirty=!0,requestAnimationFrame(t=>this._render()))},ws.prototype._render=function(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1});const e=this.hasFocus();this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0});const i=de.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=et.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=et.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=et.makeSpan("","ML__strut--bottom");t.setStyle("height",s.height+s.depth,"em"),t.setStyle("vertical-align",-s.depth,"em"),o.push(t)}o.push(s);const n=et.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e),this.accessibleNode.innerHTML="<math xmlns='http://www.w3.org/1998/Math/MathML'>"+de.toMathML(this.mathlist.root,this.config)+"</math>";const r=this._getSelectionBounds();if(r){const t=document.createElement("div");t.classList.add("ML__selection"),t.style.position="absolute",t.style.left=r.left+"px",t.style.top=r.top+"px",t.style.width=Math.ceil(r.right-r.left)+"px",t.style.height=Math.ceil(r.bottom-r.top-1)+"px",this.field.insertBefore(t,this.field.childNodes[0])}},ws.prototype._onPaste=function(){return this.pasteInProgress=!0,!0},ws.prototype._onCut=function(){return setTimeout(function(){this.clearSelection(),this._requestUpdate()}.bind(this),0),!0},ws.prototype._onCopy=function(t){this.mathlist.isCollapsed()?(t.clipboardData.setData("text/plain",this.$text("latex-expanded")),t.clipboardData.setData("application/json",this.$text("json")),t.clipboardData.setData("application/xml",this.$text("mathML"))):(t.clipboardData.setData("text/plain",this.$selectedText("latex-expanded")),t.clipboardData.setData("application/json",this.$selectedText("json")),t.clipboardData.setData("application/xml",this.$selectedText("mathML"))),t.preventDefault()},ws.prototype.formatMathlist=function(t,e){let i="";if("latex"===(e=e||"latex")||"latex-expanded"===e)i=t.toLatex("latex-expanded"===e);else if("mathML"===e)i=t.toMathML(this.config);else if("spoken"===e)i=de.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=de.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="ssml",i=de.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("json"===e){const e=de.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let s="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let a=0;for(s='"';e[a]&&"text"===e[a].mode;)s+=e[a].body,a++;s+='"'+t(e.slice(a),i)}else{let a=0;for(;e[a]&&"math"===e[a].mode;)s+=t(e[a],i),a++;s+=t(e.slice(a),i)}return s.trim()}let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body,i);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer,i),s+=")/(",s+=t(e.denom,i),s+=")"):(s+="("+t(e.numer,i)+"),",s+="("+t(e.denom,i)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index,i)+")("+t(e.body,i)+")":s+="sqrt("+t(e.body,i)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body,i),s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":"\\"===(s=bi[a]||a||("string"==typeof e.body?e.body:""))[0]&&(s+=""),(o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null)?s=String.fromCharCode(parseInt("0x"+o[1])):s.length>0&&"\\"===s.charAt(0)&&(s="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":s=a&&bi[a]?bi[a]:a&&xi[a]?xi[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=xi[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?e.body:e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const a=t(e.subscript,i);a.length>1&&!/^(-)?\d+(\.\d*)?$/.test(a)?s+="("+a+")":s+=a}if(e.superscript){s+="^";const a=t(e.superscript,i);a.length>1&&!/^(-)?\d+(\.\d*)?$/.test(a)?s+="("+a+")":s+=a}return s}(t,this.config));return i},ws.prototype.text=ws.prototype.$text=function(t){return this.formatMathlist(this.mathlist.root,t)},ws.prototype.selectedText=ws.prototype.$selectedText=function(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=de.makeRoot("math",e);return this.formatMathlist(i,t)},ws.prototype.selectionIsCollapsed=ws.prototype.$selectionIsCollapsed=function(){return this.mathlist.isCollapsed()},ws.prototype.selectionDepth=ws.prototype.$selectionDepth=function(){return this.mathlist.path.length},ws.prototype._superscriptDepth=function(){let t=0,e=0,i=this.mathlist.ancestor(e),s=!1;for(;i;)(i.superscript||i.subscript)&&(t+=1),i.superscript?s=!0:i.subscript&&(s=!1),e+=1,i=this.mathlist.ancestor(e);return s?t:0},ws.prototype._subscriptDepth=function(){let t=0,e=0,i=this.mathlist.ancestor(e),s=!1;for(;i;)(i.superscript||i.subscript)&&(t+=1),i.superscript?s=!1:i.subscript&&(s=!0),e+=1,i=this.mathlist.ancestor(e);return s?t:0},ws.prototype.selectionAtStart=ws.prototype.$selectionAtStart=function(){return 0===this.mathlist.startOffset()},ws.prototype.selectionAtEnd=ws.prototype.$selectionAtEnd=function(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1},ws.prototype.groupIsSelected=function(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1},ws.prototype.latex=ws.prototype.$latex=function(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()},ws.prototype.el=ws.prototype.$el=function(){return this.element},ws.prototype.undo_=ws.prototype.undo=function(){return this.complete_(),this.undoManager.undo(this.config),!0},ws.prototype.redo_=ws.prototype.redo=function(){return this.complete_(),this.undoManager.redo(this.config),!0},ws.prototype.scrollIntoView_=ws.prototype.scrollIntoView=function(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const i=this._getSelectionBounds();i&&(t={x:i.right+e.left-this.field.scrollLeft,y:i.top+e.top-this.field.scrollTop})}if(t){const i=t.x-window.scrollX;i<e.left?this.field.scroll({top:0,left:i-e.left+this.field.scrollLeft-20,behavior:"smooth"}):i>e.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}},ws.prototype.scrollToStart_=ws.prototype.scrollToStart=function(){this.field.scroll(0,0)},ws.prototype.scrollToEnd_=ws.prototype.scrollToEnd=function(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)},ws.prototype.enterCommandMode_=function(){this.switchMode_("command")},ws.prototype.copyToClipboard_=function(){return this.focus(),this.mathlist.isCollapsed()&&this.select(),document.execCommand("copy"),!1},ws.prototype.cutToClipboard_=function(){return this.focus(),document.execCommand("cut"),!0},ws.prototype.pasteFromClipboard_=function(){return this.focus(),document.execCommand("paste"),!0},ws.prototype.insert_=ws.prototype.insert=ws.prototype.$insert=function(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play())),"\\\\"===t)this.mathlist.addRowAfter_();else if("&"===t)this.mathlist.addColumnAfter_();else{const i=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=i)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1},ws.prototype.switchMode_=function(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),oi.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()},ws.prototype.complete_=function(t){if(t=t||{},oi.hidePopover(this),t.discard)return this.mathlist.spliceCommandStringAroundInsertionPoint(null),this.switchMode_("math"),!0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(!t.acceptSuggestion);if(e){if("\\("===e||"\\)"===e)this.mathlist.spliceCommandStringAroundInsertionPoint([]),this.mathlist.insert(e.slice(1),{mode:this.mode});else{const t="math";if(Pt.commandAllowed(t,e)){const i=be.parseTokens(x.tokenize(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=be.parseTokens(x.tokenize(e),t,null,this.config.macros);i?this.mathlist.spliceCommandStringAroundInsertionPoint(i):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1},ws.prototype._updateSuggestion=function(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=Pt.suggest(t);if(0===e.length)oi.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const i=this.suggestionIndex%e.length,s=t.length-e[i].match.length;0!==s&&this.mathlist.insertSuggestion(e[i].match,s),oi.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()},ws.prototype.nextSuggestion_=function(){return this.suggestionIndex+=1,this._updateSuggestion(),!1},ws.prototype.previousSuggestion_=function(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=Pt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1},ws.prototype._attachButtonHandlers=function(t,e){const i=this;let s,a,o,n,r;"object"==typeof e&&(e.default||e.pressed)?(e.default&&t.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e.default)),e.alt&&t.setAttribute("data-"+this.config.namespace+"command-alt",JSON.stringify(e.alt)),e.altshift&&t.setAttribute("data-"+this.config.namespace+"command-altshift",JSON.stringify(e.altshift)),e.shift&&t.setAttribute("data-"+this.config.namespace+"command-shift",JSON.stringify(e.shift)),e.pressed&&t.setAttribute("data-"+this.config.namespace+"command-pressed",JSON.stringify(e.pressed)),e.pressAndHoldStart&&t.setAttribute("data-"+this.config.namespace+"command-pressAndHoldStart",JSON.stringify(e.pressAndHoldStart)),e.pressAndHoldEnd&&t.setAttribute("data-"+this.config.namespace+"command-pressAndHoldEnd",JSON.stringify(e.pressAndHoldEnd))):t.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e)),bs(t,"mousedown touchstart:passive",function(e){if("mousedown"!==e.type||1===e.buttons){e.stopPropagation(),e.preventDefault(),t.classList.add("pressed"),s=Date.now(),"touchstart"===e.type&&(o=e.changedTouches[0].identifier);const n=t.getAttribute("data-"+i.config.namespace+"command-pressed");n&&i.perform(JSON.parse(n));const l=t.getAttribute("data-"+i.config.namespace+"command-pressAndHoldStart");l&&(a=t,r&&clearTimeout(r),r=window.setTimeout(function(){t.classList.contains("pressed")&&i.perform(JSON.parse(l))},300))}}),bs(t,"mouseleave touchcancel",function(){t.classList.remove("pressed")}),bs(t,"touchmove:passive",function(t){t.preventDefault();for(let e=0;e<t.changedTouches.length;e++)if(t.changedTouches[e].identifier===o){const i=document.elementFromPoint(t.changedTouches[e].clientX,t.changedTouches[e].clientY);i!==n&&n&&(n.dispatchEvent(new MouseEvent("mouseleave"),{bubbles:!0}),n=null),i&&(n=i,i.dispatchEvent(new MouseEvent("mouseenter",{bubbles:!0,buttons:1})))}}),bs(t,"mouseenter",function(e){1===e.buttons&&t.classList.add("pressed")}),bs(t,"mouseup touchend click",function(e){if(n){e.stopPropagation(),e.preventDefault();const t=n;return n=null,void t.dispatchEvent(new MouseEvent("mouseup",{bubbles:!0}))}if(t.classList.remove("pressed"),t.classList.add("active"),"click"===e.type&&0!==e.detail)return e.stopPropagation(),void e.preventDefault();window.setTimeout(function(){t.classList.remove("active")},150);let o=t.getAttribute("data-"+i.config.namespace+"command-pressAndHoldEnd");const r=Date.now();(t!==a||r<s+300)&&(o=void 0),!o&&e.altKey&&e.shiftKey&&(o=t.getAttribute("data-"+i.config.namespace+"command-altshift")),!o&&e.altKey&&(o=t.getAttribute("data-"+i.config.namespace+"command-alt")),!o&&e.shiftKey&&(o=t.getAttribute("data-"+i.config.namespace+"command-shift")),o||(o=t.getAttribute("data-"+i.config.namespace+"command")),o&&i.perform(JSON.parse(o)),e.stopPropagation(),e.preventDefault()})},ws.prototype._makeButton=function(t,e,i,s){const a=document.createElement("span");return a.innerHTML=t,e&&a.classList.add([].slice.call(e.split(" "))),i&&a.setAttribute("aria-label",i),this._attachButtonHandlers(a,s),a},ws.prototype.showAlternateKeys_=function(t,e){const i=ks("mathlive-alternate-keys-panel","ML__keyboard alternate-keys");this.virtualKeyboard.classList.contains("material")&&i.classList.add("material"),e.length>=7?i.style.width="286px":4===e.length||2===e.length?i.style.width="146px":1===e.length?i.style.width="86px":i.style.width="146px",i.style.height="auto";let s="";for(const t of e)s+="<li","string"==typeof t?s+=' data-latex="'+t.replace(/"/g,"&quot;")+'"':(t.latex&&(s+=' data-latex="'+t.latex.replace(/"/g,"&quot;")+'"'),t.content&&(s+=' data-content="'+t.content.replace(/"/g,"&quot;")+'"'),t.insert&&(s+=' data-insert="'+t.insert.replace(/"/g,"&quot;")+'"'),t.command&&(s+=" data-command='"+t.command.replace(/"/g,"&quot;")+"'"),t.aside&&(s+=' data-aside="'+t.aside.replace(/"/g,"&quot;")+'"'),t.classes&&(s+=' data-classes="'+t.classes+'"')),s+=">",s+=t.label||"",s+="</li>";s="<ul>"+s+"</ul>",i.innerHTML=s,yi.makeKeycap(this,i.getElementsByTagName("li"),"performAlternateKeys");const a=this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="'+t+'"]').getBoundingClientRect();if(a){a.top-i.clientHeight<0&&(i.style.width="auto",e.length<=6?i.style.height="56px":e.length<=12?i.style.height="108px":i.style.height="205px");const t=(a.top-i.clientHeight+5).toString()+"px",s=Math.max(0,Math.min(window.innerWidth-i.offsetWidth,(a.left+a.right-i.offsetWidth)/2))+"px";i.style.transform="translate("+s+","+t+")",i.classList.add("is-visible")}return!1},ws.prototype.hideAlternateKeys_=function(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",vs(t)),!1},ws.prototype.performAlternateKeys_=function(t){return this.hideAlternateKeys_(),this.perform(t)},ws.prototype.switchKeyboardLayer_=function(t){if("off"!==this.config.virtualKeyboardMode){"lower-command"!==t&&"upper-command"!==t&&"symbols-command"!==t&&this.complete_(),this.showVirtualKeyboard_(),this.hideAlternateKeys_(),this.unshiftKeyboardLayer_();const e=this.virtualKeyboard.getElementsByClassName("keyboard-layer");let i=!1;for(let s=0;s<e.length;s++)if(e[s].id===t){i=!0;break}if(i)for(let i=0;i<e.length;i++)e[i].id===t?e[i].classList.add("is-visible"):e[i].classList.remove("is-visible");this.focus()}return!0},ws.prototype.shiftKeyboardLayer_=function(){const t=this.virtualKeyboard.querySelectorAll("div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action");if(t)for(let e=0;e<t.length;e++){const i=t[e];let s=i.getAttribute("data-shifted");if(s||/^[a-z]$/.test(i.innerHTML)){i.setAttribute("data-unshifted-content",i.innerHTML),s||(s=i.innerHTML.toUpperCase()),i.innerHTML=s;const t=i.getAttribute("data-"+this.config.namespace+"command");if(t){i.setAttribute("data-unshifted-command",t);const e=i.getAttribute("data-shifted-command");if(e)i.setAttribute("data-"+this.config.namespace+"command",e);else{const e=JSON.parse(t);Array.isArray(e)&&(e[1]=e[1].toUpperCase()),i.setAttribute("data-"+this.config.namespace+"command",JSON.stringify(e))}}}}return!1},ws.prototype.unshiftKeyboardLayer_=function(){const t=this.virtualKeyboard.querySelectorAll("div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action");if(t)for(let e=0;e<t.length;e++){const i=t[e],s=i.getAttribute("data-unshifted-content");s&&(i.innerHTML=s);const a=i.getAttribute("data-unshifted-command");a&&i.setAttribute("data-"+this.config.namespace+"command",a)}return!1},ws.prototype.insertAndUnshiftKeyboardLayer_=function(t){return this.insert_(t),this.unshiftKeyboardLayer_(),!0},ws.prototype.toggleVirtualKeyboardAlt_=function(){let t=!1;return this.virtualKeyboard&&(t=this.virtualKeyboard.classList.contains("material"),this.virtualKeyboard.remove(),delete this.virtualKeyboard,this.virtualKeyboard=null),this.showVirtualKeyboard_(t?"":"material"),!1},ws.prototype.toggleVirtualKeyboardShift_=function(){this.config.virtualKeyboardLayout={qwerty:"azerty",azerty:"qwertz",qwertz:"dvorak",dvorak:"colemak",colemak:"qwerty"}[this.config.virtualKeyboardLayout];let t=this.virtualKeyboard?this.virtualKeyboard.querySelector("div.keyboard-layer.is-visible"):null;return t=t?t.id:"",this.virtualKeyboard&&(this.virtualKeyboard.remove(),delete this.virtualKeyboard,this.virtualKeyboard=null),this.showVirtualKeyboard_(),t&&this.switchKeyboardLayer_(t),!1},ws.prototype.showVirtualKeyboard_=function(t){return this.virtualKeyboardVisible=!1,this.toggleVirtualKeyboard_(t),!1},ws.prototype.hideVirtualKeyboard_=function(){return this.virtualKeyboardVisible=!0,this.toggleVirtualKeyboard_(),!1},ws.prototype.toggleVirtualKeyboard_=function(t){if(this.virtualKeyboardVisible=!this.virtualKeyboardVisible,this.virtualKeyboardVisible){this.virtualKeyboard?this.virtualKeyboard.classList.add("is-visible"):(this.virtualKeyboard=yi.make(this,t),bs(this.virtualKeyboard,"touchstart:passive mousedown",function(){e.focus()}),document.body.appendChild(this.virtualKeyboard));const e=this;window.setTimeout(function(){e.virtualKeyboard.classList.add("is-visible")},1)}else this.virtualKeyboard&&this.virtualKeyboard.classList.remove("is-visible");return"function"==typeof this.config.onVirtualKeyboardToggle&&this.config.onVirtualKeyboardToggle(this,this.virtualKeyboardVisible,this.virtualKeyboard),!1},ws.prototype.$applyStyle=ws.prototype.applyStyle_=function(t){if(this._resetKeystrokeBuffer(),(t=function(t){const e={};return"string"==typeof t.mode&&(e.mode=t.mode.toLowerCase()),"string"==typeof t.color&&(e.color=t.color),"string"==typeof t.backgroundColor&&(e.backgroundColor=t.backgroundColor),"string"==typeof t.fontFamily&&(e.fontFamily=t.fontFamily),"string"==typeof t.series&&(e.fontSeries=t.series),"string"==typeof t.fontSeries&&(e.fontSeries=t.fontSeries.toLowerCase()),e.fontSeries&&(e.fontSeries={bold:"b",medium:"m",normal:"mn"}[e.fontSeries]||e.fontSeries),"string"==typeof t.shape&&(e.fontShape=t.shape),"string"==typeof t.fontShape&&(e.fontShape=t.fontShape.toLowerCase()),e.fontShape&&(e.fontShape={italic:"it",up:"n",upright:"n",normal:"n"}[e.fontShape]||e.fontShape),"string"==typeof t.size?e.fontSize=t.size:"number"==typeof t.size&&(e.fontSize="size"+Math.min(0,Math.max(10,t.size))),"string"==typeof t.fontSize&&(e.fontSize=t.fontSize.toLowerCase()),e.fontSize&&(e.fontSize={tiny:"size1",scriptsize:"size2",footnotesize:"size3",small:"size4",normal:"size5",normalsize:"size5",large:"size6",Large:"size7",LARGE:"size8",huge:"size9",Huge:"size10"}[e.fontSize]||e.fontSize),e}(t)).mode){if(this.mathlist.isCollapsed())this.switchMode_(t.mode);else{const t=this.mode,e="math"===(this.mathlist.anchorMode()||this.config.default)?"text":"math";let i=this.$selectedText("ASCIIMath");if("math"===e&&/^"[^"]+"$/.test(i)&&(i=i.slice(1,-1)),this.insert(i,{mode:e,selectionMode:"item",format:"text"===e?"text":"ASCIIMath"}),this.mode=e,this.groupIsSelected()){const t=this.mathlist.parent();!t||"group"!==t.type&&"root"!==t.type||(t.mode=e)}this.mode!==t&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}delete t.mode}return this.mathlist.isCollapsed()?(this.style.fontSeries&&t.fontSeries===this.style.fontSeries&&(t.fontSeries="auto"),t.fontShape&&t.fontShape===this.style.fontShape&&(t.fontShape="auto"),t.color&&t.color===this.style.color&&(t.color="none"),t.backgroundColor&&t.backgroundColor===this.style.backgroundColor&&(t.backgroundColor="none"),t.fontSize&&t.fontSize===this.style.fontSize&&(t.fontSize="auto"),this.style={...this.style,...t}):(this.mathlist._applyStyle(t),this.undoManager.snapshot(this.config)),!0},ws.prototype.hasFocus=ws.prototype.$hasFocus=function(){return document.hasFocus()&&document.activeElement===this.textarea},ws.prototype.focus=ws.prototype.$focus=function(){this.hasFocus()||(this.textarea.focus&&this.textarea.focus(),this._announce("line"))},ws.prototype.blur=ws.prototype.$blur=function(){this.hasFocus()&&this.textarea.blur&&this.textarea.blur()},ws.prototype.select=ws.prototype.$select=function(){this.mathlist.selectAll_()},ws.prototype.clearSelection=ws.prototype.$clearSelection=function(){this.mathlist.delete_()},ws.prototype.keystroke=ws.prototype.$keystroke=function(t,e){return this._onKeystroke(t,e)},ws.prototype.typedText=ws.prototype.$typedText=function(t){this._onTypedText(t)},ws.prototype.typedText_=function(t,e){return this._onTypedText(t,e)},ws.prototype.setConfig=ws.prototype.$setConfig=function(t){if(this.config||(this.config={smartFence:!0,smartSuperscript:!0,scriptDepth:[1/0,1/0],removeExtraneousParentheses:!0,overrideDefaultInlineShortcuts:!1,virtualKeyboard:"",virtualKeyboardLayout:"qwerty",namespace:""}),this.config={...this.config,...t},!Array.isArray(this.config.scriptDepth)){const t=parseInt(this.config.scriptDepth);this.config.scriptDepth=[t,t]}if(void 0===this.config.removeExtraneousParentheses&&(this.config.removeExtraneousParentheses=!0),this.config.onAnnounce=t.onAnnounce||Ms,this.config.macros=Object.assign({},Pt.MACROS,this.config.macros),!/^[a-z]*[-]?$/.test(this.config.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(this.config.namespace)||(this.config.namespace+="-"),ri.locale=this.config.locale||ri.locale,ri.merge(this.config.strings),this.config.virtualKeyboardLayout=t.virtualKeyboardLayout||{fr:"azerty",be:"azerty",al:"qwertz",ba:"qwertz",cz:"qwertz",de:"qwertz",hu:"qwertz",sk:"qwertz",ch:"qwertz"}[ri.locale.substring(0,2)]||"qwerty",this.keypressSound=void 0,this.spacebarKeypressSound=void 0,this.returnKeypressSound=void 0,this.deleteKeypressSound=void 0,this.config.keypressSound&&("string"==typeof this.config.keypressSound?(this.keypressSound=new Audio,this.keypressSound.preload="none",this.keypressSound.src=this.config.keypressSound,this.keypressSound.volume=.5,this.spacebarKeypressSound=this.keypressSound,this.returnKeypressSound=this.keypressSound,this.deleteKeypressSound=this.keypressSound):(this.keypressSound=new Audio,this.keypressSound.preload="none",this.keypressSound.src=this.config.keypressSound.default,this.keypressSound.volume=.5,this.spacebarKeypressSound=this.keypressSound,this.returnKeypressSound=this.keypressSound,this.deleteKeypressSound=this.keypressSound,this.config.keypressSound.spacebar&&(this.spacebarKeypressSound=new Audio,this.spacebarKeypressSound.preload="none",this.spacebarKeypressSound.src=this.config.keypressSound.spacebar,this.spacebarKeypressSound.volume=.5),this.config.keypressSound.return&&(this.returnKeypressSound=new Audio,this.returnKeypressSound.preload="none",this.returnKeypressSound.src=this.config.keypressSound.return,this.returnKeypressSound.volume=.5),this.config.keypressSound.delete&&(this.deleteKeypressSound=new Audio,this.deleteKeypressSound.preload="none",this.deleteKeypressSound.src=this.config.keypressSound.delete,this.deleteKeypressSound.volume=.5))),this.config.plonkSound&&(this.plonkSound=new Audio,this.plonkSound.preload="none",this.plonkSound.src=this.config.plonkSound,this.plonkSound.volume=.5)},ws.prototype.speak_=function(t,e){e=e||{withHighlighting:!1};const i=function(t,e){let i=null;switch(e){case"all":i=t.mathlist.root;break;case"selection":t.mathlist.isCollapsed()||(i=t.mathlist.getSelectedAtoms());break;case"left":{const e=t.mathlist.siblings(),s=t.mathlist.startOffset();if(s>=1){i=[];for(let t=1;t<=s;t++)i.push(e[t])}break}case"right":{const e=t.mathlist.siblings(),s=t.mathlist.endOffset()+1;if(s<=e.length-1){i=[];for(let t=s;t<=e.length-1;t++)i.push(e[t])}break}case"start":case"end":break;case"group":i=t.mathlist.siblings();break;case"parent":{const e=t.mathlist.parent();e&&"root"!==e.type&&(i=t.mathlist.parent());break}}return i}(this,t);if(null===i)return this.config.handleSpeak(function(t){let e="";switch(t){case"all":break;case"selection":e="no selection";break;case"left":e="at start";break;case"right":e="at end";break;case"group":break;case"parent":e="no parent"}return e}(t)),!1;const s=this.config;e.withHighlighting|"amazon"===s.speechEngine&&(s.textToSpeechMarkup=window.sre&&"sre"===s.textToSpeechRules?"ssml_step":"ssml");const a=de.toSpeakableText(i,s);return e.withHighlighting?(window.mathlive.readAloudMathField=this,this._render({forHighlighting:!0}),this.config.handleReadAloud&&this.config.handleReadAloud(this.field,a,this.config)):this.config.handleSpeak&&this.config.handleSpeak(a,s),!1};var _s={MathField:ws};function Ts(t,e,i){let s=i,a=0;const o=t.length;for(;s<e.length;){const i=e[s];if(a<=0&&e.slice(s,s+o)===t)return s;"\\"===i?s++:"{"===i?a++:"}"===i&&a--,s++}return-1}function Ls(t,e,i,s){const a=[];for(let o=0;o<t.length;o++)if("text"===t[o].type){const n=t[o].data;let r,l=!0,c=0;-1!==(r=n.indexOf(e))&&((c=r)>0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(-1===(r=n.indexOf(e,c))){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(-1===(r=Ts(i,n,c+e.length))){h=!0;break}a.push({type:"math",data:n.slice(c+e.length,r),rawData:n.slice(c,r+i.length),mathstyle:s}),c=r+i.length}l=!l}c<n.length&&a.push({type:"text",data:n.slice(c)})}else a.push(t[o]);return a}function Fs(t,e){let i=[{type:"text",data:t}];for(let t=0;t<e.inline.length;t++){const s=e.inline[t];i=Ls(i,s[0],s[1],"textstyle")}for(let t=0;t<e.display.length;t++){const s=e.display[t];i=Ls(i,s[0],s[1],"displaystyle")}return i}function zs(t,e,i,s){const a=function(t,e,i,s){let a=document.createElement("span");a.setAttribute("aria-hidden","true"),e.preserveOriginalContent&&(a.setAttribute("data-"+e.namespace+"original-content",t),i&&a.setAttribute("data-"+e.namespace+"original-mathstyle",i));try{a.innerHTML=e.renderToMarkup(t,i||"displaystyle","html",e.macros)}catch(e){if(!s)return null;a=document.createTextNode(t)}return a}(t,i,e,s);if(a&&/\b(mathml|speakable-text)\b/i.test(i.renderAccessibleContent)){const e=document.createDocumentFragment();if(/\bmathml\b/i.test(i.renderAccessibleContent)&&i.renderToMathML&&e.appendChild(function(t,e){const i=document.createElement("span");try{i.innerHTML="<math xmlns='http://www.w3.org/1998/Math/MathML'>"+e.renderToMathML(t,e)+"</math>"}catch(e){i.textContent=t}return i.className="sr-only",i}(t,i)),/\bspeakable-text\b/i.test(i.renderAccessibleContent)&&i.renderToSpeakableText){const s=document.createElement("span");s.innerHTML=i.renderToSpeakableText(t,i),s.className="sr-only",e.appendChild(s)}return e.appendChild(a),e}return a}function Ds(t,e){let i=null;if(e.TeX.processEnvironments&&/^\s*\\begin/.test(t))(i=document.createDocumentFragment()).appendChild(zs(t,void 0,e,!0));else{const s=Fs(t,e.TeX.delimiters);if(1===s.length&&"text"===s[0].type)return null;i=document.createDocumentFragment();for(let t=0;t<s.length;t++)"text"===s[t].type?i.appendChild(document.createTextNode(s[t].data)):i.appendChild(zs(s[t].data,s[t].mathstyle,e,!0))}return i}const Es={namespace:"",skipTags:["noscript","style","textarea","pre","code","annotation","annotation-xml"],processScriptType:"math/tex",ignoreClass:"tex2jax_ignore",processClass:"tex2jax_process",preserveOriginalContent:!0,renderAccessibleContent:"mathml",TeX:{disabled:!1,processEnvironments:!0,delimiters:{inline:[["\\(","\\)"]],display:[["$$","$$"],["\\[","\\]"]]}}};var qs={renderMathInElement:function(t,e){try{if((e=Object.assign({},Es,e)).ignoreClassPattern=new RegExp(e.ignoreClass),e.processClassPattern=new RegExp(e.processClass),e.processScriptTypePattern=new RegExp(e.processScriptType),e.macros=Pt.MACROS,e.namespace){if(!/^[a-z]+[-]?$/.test(e.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(e.namespace)||(e.namespace+="-")}!function t(e,i){const s=e.getAttribute("data-"+i.namespace+"original-content");if(s){const t=zs(s,e.getAttribute("data-"+i.namespace+"mathstyle"),i,!1);null!=t&&(e.textContent="",e.appendChild(t))}else{if(1===e.childNodes.length&&3===e.childNodes[0].nodeType){const t=e.childNodes[0].textContent;if(i.TeX.processEnvironments&&/^\s*\\begin/.test(t))return e.textContent="",void e.appendChild(zs(t,void 0,i,!0));const s=Fs(t,i.TeX.delimiters);if(1===s.length&&"math"===s[0].type)return e.textContent="",void e.appendChild(zs(s[0].data,s[0].mathstyle,i,!0));if(1===s.length&&"text"===s[0].type)return}for(let s=0;s<e.childNodes.length;s++){const a=e.childNodes[s];if(3===a.nodeType){const t=Ds(a.textContent,i);t&&(s+=t.childNodes.length-1,e.replaceChild(t,a))}else if(1===a.nodeType){const e=a.nodeName.toLowerCase();if("script"===e&&i.processScriptTypePattern.test(a.type)){let t="displaystyle";for(const e of a.type.split(";")){const i=e.split("=");"mode"===i[0].toLowerCase()&&(t="display"===i[1].toLoweCase()?"displaystyle":"textstyle")}const e=zs(a.textContent,t,i,!0);a.parentNode.replaceChild(e,a)}else(i.processClassPattern.test(a.className)||!i.skipTags.includes(e)&&!i.ignoreClassPattern.test(a.className))&&t(a,i)}}}}(t,e)}catch(t){Error}}};function Ps(t,e,i,s){e=e||"displaystyle";const a=x.tokenize(t),o=be.parseTokens(a,"math",null,s);if("mathlist"===i)return o;let n=de.decompose({mathstyle:e},o);if(n=et.coalesce(n),"span"===i)return n;const r=et.makeSpan(n,"ML__base"),l=et.makeSpan("","ML__strut");l.setStyle("height",r.height,"em");const c=[l];if(0!==r.depth){const t=et.makeSpan("","ML__strut--bottom");t.setStyle("height",r.height+r.depth,"em"),t.setStyle("vertical-align",-r.depth,"em"),c.push(t)}return c.push(r),et.makeSpan(c,"ML__mathlive").toMarkup()}function Is(t,e){if(!de.toMathML)return"";(e=e||{}).macros=e.macros||{},Object.assign(e.macros,Pt.MACROS);const i=be.parseTokens(x.tokenize(t),"math",null,e.macros);return de.toMathML(i,e)}function Bs(t,e){if(!de.toSpeakableText)return"";(e=e||{}).macros=e.macros||{},Object.assign(e.macros,Pt.MACROS);const i=be.parseTokens(x.tokenize(t),"math",null,e.macros);return de.toSpeakableText(i,e)}function Os(t,e){if(!e&&window&&window.mathlive&&(e=window.mathlive.config),(e=e||{}).speechEngine&&"local"!==e.speechEngine)if("amazon"===e.speechEngine){if(window&&window.AWS){const i=new window.AWS.Polly({apiVersion:"2016-06-10"}),s={OutputFormat:"mp3",VoiceId:e.speechEngineVoice||"Joanna",Text:t,TextType:"ssml"};i.synthesizeSpeech(s,function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),i=new Blob([t.buffer],{type:"audio/mpeg"}),s=URL.createObjectURL(i);new Audio(s).play().catch(t=>void 0)}})}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Rs(t,e,i){if(!window)return;if(!i&&window.mathlive&&(i=window.mathlive.config),"amazon"!==(i=i||{}).speechEngine)return void(i.handleSpeak&&i.handleSpeak(e));if(!window.AWS)return;const s=new window.AWS.Polly({apiVersion:"2016-06-10"}),a={OutputFormat:"json",VoiceId:i.speechEngineVoice||"Joanna",Text:e,TextType:"ssml",SpeechMarkTypes:["ssml"]};window.mathlive=window.mathlive||{},window.mathlive.readAloudElement=t;const o=i.onReadAloudStatus||window.mathlive.onReadAloudStatus;s.synthesizeSpeech(a,function(t,e){if(t);else if(e&&e.AudioStream){const t=new TextDecoder("utf-8").decode(new Uint8Array(e.AudioStream));window.mathlive.readAloudMarks=t.split("\n").map(t=>t?JSON.parse(t):{}),window.mathlive.readAloudTokens=[];for(const t of window.mathlive.readAloudMarks)t.value&&window.mathlive.readAloudTokens.push(t.value);window.mathlive.readAloudCurrentMark="",a.OutputFormat="mp3",a.SpeechMarkTypes=[],s.synthesizeSpeech(a,function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),i=new Blob([t.buffer],{type:"audio/mpeg"}),s=URL.createObjectURL(i);window.mathlive.readAloudAudio?window.mathlive.readAloudAudio.pause():(window.mathlive.readAloudAudio=new Audio,window.mathlive.readAloudAudio.addEventListener("ended",()=>{o&&o(window.mathlive.readAloudMathField,"ended"),window.mathlive.readAloudMathField?(window.mathlive.readAloudMathField._render(),window.mathlive.readAloudElement=null,window.mathlive.readAloudMathField=null,window.mathlive.readAloudTokens=[],window.mathlive.readAloudMarks=[],window.mathlive.readAloudCurrentMark=""):function t(e){e.classList.remove("highlight"),e.children&&Array.from(e.children).forEach(e=>{t(e)})}(window.mathlive.readAloudElement)}),window.mathlive.readAloudAudio.addEventListener("timeupdate",()=>{let t="";const e=1e3*window.mathlive.readAloudAudio.currentTime+100;for(const i of window.mathlive.readAloudMarks)i.time<e&&(t=i.value);window.mathlive.readAloudCurrentMark!==t&&(window.mathlive.readAloudCurrentToken=t,t&&t===window.mathlive.readAloudFinalToken?window.mathlive.readAloudAudio.pause():(window.mathlive.readAloudCurrentMark=t,function t(e,i){i&&e.dataset.atomId!==i?(e.classList.remove("highlight"),e.children&&e.children.length>0&&Array.from(e.children).forEach(e=>{t(e,i)})):(e.classList.add("highlight"),e.children&&e.children.length>0&&Array.from(e.children).forEach(e=>{t(e)}))}(window.mathlive.readAloudElement,window.mathlive.readAloudCurrentMark)))})),window.mathlive.readAloudAudio.src=s,o&&o(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}})}})}function Ks(t){let e=t;if("string"==typeof t&&!(e=document.getElementById(t)))throw Error(`The element with ID "${t}" could not be found.`);return e}function Ns(t,e){qs&&((e=e||{}).renderToMarkup=e.renderToMarkup||Ps,e.renderToMathML=e.renderToMathML||Is,e.renderToSpeakableText=e.renderToSpeakableText||Bs,e.macros=e.macros||Pt.MACROS,qs.renderMathInElement(Ks(t),e))}function $s(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}return{latexToMarkup:Ps,latexToMathML:Is,latexToSpeakableText:Bs,latexToAST:function(t,e){if(!de.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,Pt.MACROS);const i=be.parseTokens(x.tokenize(t),"math",null,e.macros);return de.toAST(i,e)},makeMathField:function(t,e){if(!_s)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Os,e.handleReadAloud=e.handleReadAloud||Rs,new _s.MathField(Ks(t),e)},renderMathInDocument:function(t){Ns(document.body,t)},renderMathInElement:Ns,revertToOriginalContent:function(t,e){(t=(t=Ks(t)).children[1])instanceof _s.MathField?t.revertToOriginalContent():($s(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=Ks(t)).children[1])instanceof _s.MathField?t.originalContent:($s(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Rs,readAloudStatus:function(){return window?(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio?window.mathlive.readAloudAudio.paused?"paused":window.mathlive.readAloudAudio.ended?"ready":"playing":"ready"):"unavailable"},pauseReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"paused"),window.mathlive.readAloudAudio.pause()))},resumeReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()))},playReadAloud:function(t,e){if(window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio)){let i=0;if(window.mathlive.readAloudFinalToken=null,t){window.mathlive.readAloudMarks=window.mathlive.readAloudMarks||[];for(const e of window.mathlive.readAloudMarks)e.value===t&&(i=e.time/1e3);let s=window.mathlive.readAloudTokens.indexOf(t);s>=0&&(s+=e)<window.mathlive.readAloudTokens.length&&(window.mathlive.readAloudFinalToken=s)}window.mathlive.readAloudAudio.currentTime=i,window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}}}},"object"==typeof exports&&"undefined"!=typeof module?module.exports=factory():"function"==typeof define&&define.amd?define(factory):(global=global||self).MathLive=factory();
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _lexer = _interopRequireDefault(require("./core/lexer.js"));
+
+var _mathAtom = _interopRequireDefault(require("./core/mathAtom.js"));
+
+var _parser = _interopRequireDefault(require("./core/parser.js"));
+
+var _span = _interopRequireDefault(require("./core/span.js"));
+
+var _definitions = _interopRequireDefault(require("./core/definitions.js"));
+
+var _editorMathfield = _interopRequireDefault(require("./editor/editor-mathfield.js"));
+
+var _autoRender = _interopRequireDefault(require("./addons/auto-render.js"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ *
+ * This modules exports the MathLive entry points.
+ *
+ * @module mathlive
+ * @example
+ * // To invoke the functions in this module, import the MathLive module. 
+ * 
+ * import MathLive from 'dist/mathlive.mjs';
+ * 
+ * const markup = MathLive.latexToMarkup('e^{i\\pi}+1=0');
+ * 
+ */
+
+/**
+ * Convert a LaTeX string to a string of HTML markup.
+ *
+ * @param {string} text A string of valid LaTeX. It does not have to start
+ * with a mode token such as `$$` or `\(`.
+ *
+ * @param {string} mathstyle If `'displaystyle'` the "display" mode of TeX
+ * is used to typeset the formula, which is most appropriate for formulas that are
+ * displayed in a standalone block. If `'textstyle'` is used, the "text" mode
+ * of TeX is used, which is most appropriate when displaying math "inline"
+ * with other text (on the same line).
+ *
+ * @param {string} [format='html'] For debugging purposes, this function
+ * can also return a text representation of internal data structures
+ * used to construct the markup. Valid values include `'mathlist'` and `'span'`
+ *
+ * @return {string}
+ * @function module:mathlive#latexToMarkup
+ */
+function toMarkup(text, mathstyle, format, macros) {
+  mathstyle = mathstyle || 'displaystyle';
+  console.assert(/displaystyle|textstyle|scriptstyle|scriptscriptstyle/.test(mathstyle), "Invalid style:", mathstyle); //
+  // 1. Tokenize the text
+  //
+
+  var tokens = _lexer.default.tokenize(text); //
+  // 2. Parse each token in the formula
+  //    Turn the list of tokens in the formula into
+  //    a tree of high-level MathAtom, e.g. 'genfrac'.
+  //
+
+
+  var mathlist = _parser.default.parseTokens(tokens, 'math', null, macros);
+
+  if (format === 'mathlist') return mathlist; //
+  // 3. Transform the math atoms into elementary spans
+  //    for example from genfrac to vlist.
+  //
+
+  var spans = _mathAtom.default.decompose({
+    mathstyle: mathstyle
+  }, mathlist); //
+  // 4. Simplify by coalescing adjacent nodes
+  //    for example, from <span>1</span><span>2</span>
+  //    to <span>12</span>
+  //
+
+
+  spans = _span.default.coalesce(spans);
+  if (format === 'span') return spans; //
+  // 5. Wrap the expression with struts
+  //
+
+  var base = _span.default.makeSpan(spans, 'ML__base');
+
+  var topStrut = _span.default.makeSpan('', 'ML__strut');
+
+  topStrut.setStyle('height', base.height, 'em');
+  var struts = [topStrut];
+
+  if (base.depth !== 0) {
+    var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom');
+
+    bottomStrut.setStyle('height', base.height + base.depth, 'em');
+    bottomStrut.setStyle('vertical-align', -base.depth, 'em');
+    struts.push(bottomStrut);
+  }
+
+  struts.push(base);
+
+  var wrapper = _span.default.makeSpan(struts, 'ML__mathlive'); //
+  // 6. Generate markup
+  //
+
+
+  return wrapper.toMarkup();
+}
+/**
+ * Convert a DOM element into an editable math field.
+ * 
+ * After the DOM element has been created, the value `element.mathfield` will 
+ * return a reference to the mathfield object. This value is also returned 
+ * by `makeMathField`
+ * 
+ * @param {Element|string} element A DOM element, for example as obtained 
+ * by `document.getElementById()`, or the ID of a DOM element as a string.
+ * 
+ * @param {Object<string, any>} [config={}] See {@tutorial CONFIG} for details.
+ *
+ *
+ * @return {MathField}
+ * 
+ * Given the HTML markup:
+ * ```html
+ * <span id='equation'>$f(x)=sin(x)$</span>
+ * ```
+ * The following code will turn the span into an editable mathfield.
+ * ```
+ * import MathLive from 'dist/mathlive.mjs';
+ * MathLive.makeMathField('equation');
+ * ```
+ * 
+ * @function module:mathlive#makeMathField
+ */
+
+
+function makeMathField(element, config) {
+  if (!_editorMathfield.default) {
+    throw Error('The MathField module is not loaded.');
+  }
+
+  config = config || {};
+  config.handleSpeak = config.handleSpeak || speak;
+  config.handleReadAloud = config.handleReadAloud || readAloud;
+  return new _editorMathfield.default.MathField(getElement(element), config);
+}
+/**
+ * Convert a LaTeX string to a string of MathML markup.
+ *
+ * @param {string} latex A string of valid LaTeX. It does not have to start
+ * with a mode token such as a `$$` or `\(`.
+ * @param {object} options
+ * @param {boolean} [options.generateID=false] - If true, add an `extid` attribute
+ * to the MathML nodes with a value matching the `atomID`.
+ * @return {string}
+ * @function module:mathlive#latexToMathML
+ */
+
+
+function toMathML(latex, options) {
+  if (!_mathAtom.default.toMathML) {
+    console.warn('The MathML module is not loaded.');
+    return '';
+  }
+
+  options = options || {};
+  options.macros = options.macros || {};
+  Object.assign(options.macros, _definitions.default.MACROS);
+
+  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, options.macros);
+
+  return _mathAtom.default.toMathML(mathlist, options);
+}
+/**
+ * Convert a LaTeX string to an Abstract Syntax Tree
+ *
+ * **See:** {@tutorial MASTON}
+ *
+ * @param {string} latex A string of valid LaTeX. It does not have to start
+ * with a mode token such as a `$$` or `\(`.
+ *
+ * @return {object} The Abstract Syntax Tree as a JavaScript object.
+ * @function module:mathlive#latexToAST
+ */
+
+
+function latexToAST(latex, options) {
+  if (!_mathAtom.default.toAST) {
+    console.warn('The AST module is not loaded.');
+    return {};
+  }
+
+  options = options || {};
+  options.macros = options.macros || {};
+  Object.assign(options.macros, _definitions.default.MACROS);
+
+  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, options.macros);
+
+  return _mathAtom.default.toAST(mathlist, options);
+}
+/**
+ * Convert a LaTeX string to a textual representation ready to be spoken
+ *
+ * @param {string} latex A string of valid LaTeX. It does not have to start
+ * with a mode token such as a `$$` or `\(`.
+ * 
+ * @param {Object.<string, any>} options -
+ * 
+ * @param {string} [options.textToSpeechRules='mathlive'] Specify which
+ * set of text to speech rules to use. 
+ * 
+ * A value of `mathlive` indicates that
+ * the simple rules built into MathLive should be used. A value of `sre`
+ * indicates that the Speech Rule Engine from Volker Sorge should be used.
+ * Note that SRE is not included or loaded by MathLive and for this option to
+ * work SRE should be loaded separately.
+ * 
+ * @param {string} [options.textToSpeechMarkup=''] The markup syntax to use 
+ * for the output of conversion to spoken text. 
+ * 
+ * Possible values are `ssml` for 
+ * the SSML markup or `mac` for the MacOS markup (e.g. `[[ltr]]`)
+ *
+ * @param {Object.<string, any>} [options.textToSpeechRulesOptions={}] A set of 
+ * key/value pairs that can be used to configure the speech rule engine. 
+ * 
+ * Which options are available depends on the speech rule engine in use. There 
+ * are no options available with MathLive's built-in engine. The options for 
+ * the SRE engine are documented [here]{@link:https://github.com/zorkow/speech-rule-engine}
+ * @return {string} The spoken representation of the input LaTeX.
+ * @example
+ * console.log(MathLive.latexToSpeakableText('\\frac{1}{2}'));
+ * // ➡︎'half'
+ * @function module:mathlive#latexToSpeakableText
+ */
+
+
+function latexToSpeakableText(latex, options) {
+  if (!_mathAtom.default.toSpeakableText) {
+    console.warn('The outputSpokenText module is not loaded.');
+    return "";
+  }
+
+  options = options || {};
+  options.macros = options.macros || {};
+  Object.assign(options.macros, _definitions.default.MACROS);
+
+  var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(latex), 'math', null, options.macros);
+
+  return _mathAtom.default.toSpeakableText(mathlist, options);
+}
+
+function removeHighlight(node) {
+  node.classList.remove('highlight');
+
+  if (node.children) {
+    Array.from(node.children).forEach(function (x) {
+      removeHighlight(x);
+    });
+  }
+}
+/**
+ * Highlight the span corresponding to the specified atomID
+ * This is used for TTS with synchronized highlighting (read aloud)
+ *
+ * @param {string} atomID
+ *
+ */
+
+
+function highlightAtomID(node, atomID) {
+  if (!atomID || node.dataset.atomId === atomID) {
+    node.classList.add('highlight');
+
+    if (node.children && node.children.length > 0) {
+      Array.from(node.children).forEach(function (x) {
+        highlightAtomID(x);
+      });
+    }
+  } else {
+    node.classList.remove('highlight');
+
+    if (node.children && node.children.length > 0) {
+      Array.from(node.children).forEach(function (x) {
+        highlightAtomID(x, atomID);
+      });
+    }
+  }
+}
+
+function speak(text, config) {
+  if (!config && window && window.mathlive) {
+    config = window.mathlive.config;
+  }
+
+  config = config || {};
+
+  if (!config.speechEngine || config.speechEngine === 'local') {
+    // On ChromeOS: chrome.accessibilityFeatures.spokenFeedback
+    // See also https://developer.chrome.com/apps/tts
+    var utterance = new SpeechSynthesisUtterance(text);
+
+    if (window) {
+      window.speechSynthesis.speak(utterance);
+    } else {
+      console.log('Speak: ', text);
+    }
+  } else if (config.speechEngine === 'amazon') {
+    if (!window || !window.AWS) {
+      console.warn('AWS SDK not loaded. See https://www.npmjs.com/package/aws-sdk');
+    } else {
+      var polly = new window.AWS.Polly({
+        apiVersion: '2016-06-10'
+      });
+      var params = {
+        OutputFormat: 'mp3',
+        VoiceId: config.speechEngineVoice || 'Joanna',
+        // SampleRate: '16000',
+        Text: text,
+        TextType: 'ssml' // SpeechMarkTypes: ['ssml]'
+
+      };
+      polly.synthesizeSpeech(params, function (err, data) {
+        if (err) {
+          console.warn('polly.synthesizeSpeech() error:', err, err.stack);
+        } else {
+          if (data && data.AudioStream) {
+            var uInt8Array = new Uint8Array(data.AudioStream);
+            var blob = new Blob([uInt8Array.buffer], {
+              type: 'audio/mpeg'
+            });
+            var url = URL.createObjectURL(blob);
+            var audioElement = new Audio(url);
+            audioElement.play().catch(function (err) {
+              return console.log(err);
+            });
+          } else {
+            console.log('polly.synthesizeSpeech():' + data);
+          }
+        }
+      }); // Can call AWS.Request() on the result of synthesizeSpeech()
+    }
+  } else if (config.speechEngine === 'google') {
+    console.warn('The Google speech engine is not supported yet. Please come again.'); // @todo: implement support for Google Text-to-Speech API,
+    // using config.speechEngineToken, config.speechEngineVoice and
+    // config.speechEngineAudioConfig
+    // curl -H "Authorization: Bearer "$(gcloud auth application-default print-access-token) \
+    //   -H "Content-Type: application/json; charset=utf-8" \
+    //   --data "{
+    //     'input':{
+    //       'text':'Android is a mobile operating system developed by Google,
+    //          based on the Linux kernel and designed primarily for
+    //          touchscreen mobile devices such as smartphones and tablets.'
+    //     },
+    //     'voice':{
+    //       'languageCode':'en-gb',
+    //       'name':'en-GB-Standard-A',
+    //       'ssmlGender':'FEMALE'
+    //     },
+    //     'audioConfig':{
+    //       'audioEncoding':'MP3'
+    //     }
+    //   }" "https://texttospeech.googleapis.com/v1beta1/text:synthesize" > synthesize-text.txt
+  }
+}
+/**
+ * "Read Aloud" is an asynchronous operation that reads the 
+ * reading with synchronized highlighting
+ * 
+ * @param {DOMElement} element - The DOM element to highlight
+ * @param {string} text - The text to speak
+ * @param {object} config
+ * @private
+ * @function module:mathlive#readAloud
+ */
+
+
+function readAloud(element, text, config) {
+  if (!window) {
+    return;
+  }
+
+  if (!config && window.mathlive) {
+    config = window.mathlive.config;
+  }
+
+  config = config || {};
+
+  if (config.speechEngine !== 'amazon') {
+    console.warn('Use Amazon TTS Engine for synchronized highlighting');
+    if (config.handleSpeak) config.handleSpeak(text);
+    return;
+  }
+
+  if (!window.AWS) {
+    console.warn('AWS SDK not loaded. See https://www.npmjs.com/package/aws-sdk');
+    return;
+  }
+
+  var polly = new window.AWS.Polly({
+    apiVersion: '2016-06-10'
+  });
+  var params = {
+    OutputFormat: 'json',
+    VoiceId: config.speechEngineVoice || 'Joanna',
+    Text: text,
+    TextType: 'ssml',
+    SpeechMarkTypes: ['ssml']
+  };
+  window.mathlive = window.mathlive || {};
+  window.mathlive.readAloudElement = element;
+  var status = config.onReadAloudStatus || window.mathlive.onReadAloudStatus; // Request the mark points
+
+  polly.synthesizeSpeech(params, function (err, data) {
+    if (err) {
+      console.warn('polly.synthesizeSpeech() error:', err, err.stack);
+    } else {
+      if (data && data.AudioStream) {
+        var response = new TextDecoder('utf-8').decode(new Uint8Array(data.AudioStream));
+        window.mathlive.readAloudMarks = response.split('\n').map(function (x) {
+          return x ? JSON.parse(x) : {};
+        });
+        window.mathlive.readAloudTokens = [];
+        var _iteratorNormalCompletion = true;
+        var _didIteratorError = false;
+        var _iteratorError = undefined;
+
+        try {
+          for (var _iterator = window.mathlive.readAloudMarks[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+            var mark = _step.value;
+
+            if (mark.value) {
+              window.mathlive.readAloudTokens.push(mark.value);
+            }
+          }
+        } catch (err) {
+          _didIteratorError = true;
+          _iteratorError = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion && _iterator.return != null) {
+              _iterator.return();
+            }
+          } finally {
+            if (_didIteratorError) {
+              throw _iteratorError;
+            }
+          }
+        }
+
+        window.mathlive.readAloudCurrentMark = ''; // Request the audio
+
+        params.OutputFormat = 'mp3';
+        params.SpeechMarkTypes = [];
+        polly.synthesizeSpeech(params, function (err, data) {
+          if (err) {
+            console.warn('polly.synthesizeSpeech(', text, ') error:', err, err.stack);
+          } else {
+            if (data && data.AudioStream) {
+              var uInt8Array = new Uint8Array(data.AudioStream);
+              var blob = new Blob([uInt8Array.buffer], {
+                type: 'audio/mpeg'
+              });
+              var url = URL.createObjectURL(blob);
+
+              if (!window.mathlive.readAloudAudio) {
+                window.mathlive.readAloudAudio = new Audio();
+                window.mathlive.readAloudAudio.addEventListener('ended', function () {
+                  if (status) status(window.mathlive.readAloudMathField, 'ended');
+
+                  if (window.mathlive.readAloudMathField) {
+                    window.mathlive.readAloudMathField._render();
+
+                    window.mathlive.readAloudElement = null;
+                    window.mathlive.readAloudMathField = null;
+                    window.mathlive.readAloudTokens = [];
+                    window.mathlive.readAloudMarks = [];
+                    window.mathlive.readAloudCurrentMark = '';
+                  } else {
+                    removeHighlight(window.mathlive.readAloudElement);
+                  }
+                });
+                window.mathlive.readAloudAudio.addEventListener('timeupdate', function () {
+                  var value = ''; // The target, the atom we're looking for, is the one matching the current audio
+                  // plus 100 ms. By anticipating it a little bit, it feels more natural, otherwise it
+                  // feels like the highlighting is trailing the audio.
+
+                  var target = window.mathlive.readAloudAudio.currentTime * 1000 + 100; // Find the smallest element which is bigger than the target time
+
+                  var _iteratorNormalCompletion2 = true;
+                  var _didIteratorError2 = false;
+                  var _iteratorError2 = undefined;
+
+                  try {
+                    for (var _iterator2 = window.mathlive.readAloudMarks[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+                      var mark = _step2.value;
+
+                      if (mark.time < target) {
+                        value = mark.value;
+                      }
+                    }
+                  } catch (err) {
+                    _didIteratorError2 = true;
+                    _iteratorError2 = err;
+                  } finally {
+                    try {
+                      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+                        _iterator2.return();
+                      }
+                    } finally {
+                      if (_didIteratorError2) {
+                        throw _iteratorError2;
+                      }
+                    }
+                  }
+
+                  if (window.mathlive.readAloudCurrentMark !== value) {
+                    window.mathlive.readAloudCurrentToken = value;
+
+                    if (value && value === window.mathlive.readAloudFinalToken) {
+                      window.mathlive.readAloudAudio.pause();
+                    } else {
+                      window.mathlive.readAloudCurrentMark = value;
+                      highlightAtomID(window.mathlive.readAloudElement, window.mathlive.readAloudCurrentMark);
+                    }
+                  }
+                });
+              } else {
+                window.mathlive.readAloudAudio.pause();
+              }
+
+              window.mathlive.readAloudAudio.src = url;
+
+              if (status) {
+                status(window.mathlive.readAloudMathField, 'playing');
+              }
+
+              window.mathlive.readAloudAudio.play();
+            } else {// console.log('polly.synthesizeSpeech():' + data);
+            }
+          }
+        });
+      } else {
+        console.log('polly.synthesizeSpeech():' + data);
+      }
+    }
+  });
+}
+/**
+ * Return the status of a Read Aloud operation (reading with synchronized
+ * highlighting). 
+ * 
+ * Possible values include:
+ * - `ready`
+ * - `playing`
+ * - `paused`
+ * - `unavailable`
+ * 
+ * **See** {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
+ * @return {string}
+ * @function module:mathlive#readAloudStatus
+ */
+
+
+function readAloudStatus() {
+  if (!window) return 'unavailable';
+  window.mathlive = window.mathlive || {};
+  if (!window.mathlive.readAloudAudio) return 'ready';
+  if (window.mathlive.readAloudAudio.paused) return 'paused';
+  if (!window.mathlive.readAloudAudio.ended) return 'playing';
+  return 'ready';
+}
+/**
+ * If a Read Aloud operation is in progress, stop it.
+ * 
+ * **See** {@linkcode module:editor/mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
+ * @function module:mathlive#pauseReadAloud
+ */
+
+
+function pauseReadAloud() {
+  if (!window) return;
+  window.mathlive = window.mathlive || {};
+
+  if (window.mathlive.readAloudAudio) {
+    if (window.mathlive.onReadAloudStatus) {
+      window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField, 'paused');
+    }
+
+    window.mathlive.readAloudAudio.pause();
+  }
+}
+/**
+ * If a Read Aloud operation is paused, resume it
+ * 
+ * **See** {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
+ * @function module:mathlive#resumeReadAloud
+ */
+
+
+function resumeReadAloud() {
+  if (!window) return;
+  window.mathlive = window.mathlive || {};
+
+  if (window.mathlive.readAloudAudio) {
+    if (window.mathlive.onReadAloudStatus) {
+      window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField, 'playing');
+    }
+
+    window.mathlive.readAloudAudio.play();
+  }
+}
+/**
+ * If a Read Aloud operation is in progress, read from a specified token
+ * 
+ * **See** {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
+ *
+ * @param {string} token
+ * @param {number} [count]
+ * @function module:mathlive#playReadAloud
+ */
+
+
+function playReadAloud(token, count) {
+  if (!window) return;
+  window.mathlive = window.mathlive || {};
+
+  if (window.mathlive.readAloudAudio) {
+    var timeIndex = 0;
+    window.mathlive.readAloudFinalToken = null;
+
+    if (token) {
+      window.mathlive.readAloudMarks = window.mathlive.readAloudMarks || [];
+      var _iteratorNormalCompletion3 = true;
+      var _didIteratorError3 = false;
+      var _iteratorError3 = undefined;
+
+      try {
+        for (var _iterator3 = window.mathlive.readAloudMarks[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+          var mark = _step3.value;
+
+          if (mark.value === token) {
+            timeIndex = mark.time / 1000;
+          }
+        }
+      } catch (err) {
+        _didIteratorError3 = true;
+        _iteratorError3 = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
+            _iterator3.return();
+          }
+        } finally {
+          if (_didIteratorError3) {
+            throw _iteratorError3;
+          }
+        }
+      }
+
+      var tokenIndex = window.mathlive.readAloudTokens.indexOf(token);
+
+      if (tokenIndex >= 0) {
+        tokenIndex += count;
+
+        if (tokenIndex < window.mathlive.readAloudTokens.length) {
+          window.mathlive.readAloudFinalToken = tokenIndex;
+        }
+      }
+    }
+
+    window.mathlive.readAloudAudio.currentTime = timeIndex;
+
+    if (window.mathlive.onReadAloudStatus) {
+      window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField, 'playing');
+    }
+
+    window.mathlive.readAloudAudio.play();
+  }
+}
+/**
+ * Transform all the elements in the document body that contain LaTeX code
+ * into typeset math.
+ * 
+ * **Note:** This is a very expensive call, as it needs to parse the entire 
+ * DOM tree to determine which elements need to be processed. In most cases 
+ * this should only be called once per document, once the DOM has been loaded.
+ * To render a specific element, use {@linkcode module:mathlive#renderMathInElement renderMathInElement()}
+ *
+ * **See:** {@tutorial USAGE_GUIDE}
+ *
+ * @param {object} [options={}] See {@linkcode module:mathlive#renderMathInElement renderMathInElement()}
+ * for details
+ * @example
+ * import MathLive from 'dist/mathlive.mjs';
+ * document.addEventListener("load", () => { 
+ *     MathLive.renderMathInDocument();
+ * });
+ * 
+ */
+
+
+function renderMathInDocument(options) {
+  renderMathInElement(document.body, options);
+}
+
+function getElement(element) {
+  var result = element;
+
+  if (typeof element === 'string') {
+    result = document.getElementById(element);
+
+    if (!result) {
+      throw Error("The element with ID \"".concat(element, "\" could not be found."));
+    }
+  }
+
+  return result;
+}
+/**
+ * Transform all the children of `element`, recursively, that contain LaTeX code
+ * into typeset math.
+ *
+ * **See:** {@tutorial USAGE_GUIDE}
+ *
+ * @param {Element|string} element An HTML DOM element, or a string containing
+ * the ID of an element.
+ * @param {object} [options={}]
+ *
+ * @param {string} [options.namespace=''] - Namespace that is added to `data-`
+ * attributes to avoid collisions with other libraries. 
+ * 
+ * It is empty by default.
+ * 
+ * The namespace should be a string of lowercase letters.
+ * 
+ * @param {object[]} [options.macros={}] - Custom LaTeX macros
+ * 
+ * @param {string[]} [options.skipTags=['noscript', 'style', 'textarea', 'pre', 'code', 'annotation', 'annotation-xml'] ] 
+ * an array of tag names whose content will
+ *  not be scanned for delimiters (unless their class matches the `processClass`
+ * pattern below.
+ * 
+ * @param {string} [options.ignoreClass='tex2jax_ignore'] a string used as a
+ * regular expression of class names of elements whose content will not be
+ * scanned for delimiters
+
+ * @param {string} [options.processClass='tex2jax_process']   a string used as a
+ * regular expression of class names of elements whose content **will** be
+ * scanned for delimiters,  even if their tag name or parent class name would
+ * have prevented them from doing so.
+ * 
+ * @param {string} [options.processScriptType="math/tex"] `<script>` tags of the 
+ * indicated type will be processed while others will be ignored.
+
+ * 
+ * @param {string} [options.renderAccessibleContent='mathml'] The format(s) in 
+ * which to render the math for screen readers:
+ * - `'mathml'` MathML
+ * - `'speakable-text'` Spoken representation
+ * 
+ * You can pass an empty string to turn off the rendering of accessible content.
+ * 
+ * You can pass multiple values separated by spaces, e.g `'mathml speakable-text'`
+ * 
+ * @param {boolean} [options.preserveOriginalContent=true] if true, store the
+ * original textual content of the element in a `data-original-content`
+ * attribute. This value can be accessed for example to restore the element to
+ * its original value:
+ * ```javascript
+ *      elem.innerHTML = elem.dataset.originalContent;
+ * ```
+ * @param {boolean} [options.readAloud=false] if true, generate markup that can
+ * be read aloud later using {@linkcode module:editor-mathfield#speakAllWithSynchronizedHighlighting speakAllWithSynchronizedHighlighting}
+ * 
+ * @param {boolean} [options.TeX.processEnvironments=true] if false, math expression
+ * that start with `\begin{` will not automatically be rendered.
+ * 
+ * @param {string[][]} [options.TeX.delimiters.inline=[['\\(','\\)']] ] arrays
+ * of delimiter pairs that will trigger a render of the content in 'textstyle'
+ *
+ * @param {string[][]} [options.TeX.delimiters.display=[['$$', '$$'], ['\\[', '\\]']] ] arrays
+ * of delimiter pairs that will trigger a render of the content in
+ * 'displaystyle'.
+ * 
+ * @param {function} [renderToMarkup] a function that will convert any LaTeX found to
+ * HTML markup. This is only useful to override the default MathLive renderer
+ * 
+ * @param {function} [renderToMathML] a function that will convert any LaTeX found to
+ * MathML markup.
+ * 
+ * @param {function} [renderToSpeakableText] a function that will convert any LaTeX found to
+ * speakable text markup.
+ * 
+ * @function module:mathlive#renderMathInElement
+ */
+
+
+function renderMathInElement(element, options) {
+  if (!_autoRender.default) {
+    console.warn('The AutoRender module is not loaded.');
+    return;
+  }
+
+  options = options || {};
+  options.renderToMarkup = options.renderToMarkup || toMarkup;
+  options.renderToMathML = options.renderToMathML || toMathML;
+  options.renderToSpeakableText = options.renderToSpeakableText || latexToSpeakableText;
+  options.macros = options.macros || _definitions.default.MACROS;
+
+  _autoRender.default.renderMathInElement(getElement(element), options);
+}
+
+function validateNamespace(options) {
+  if (options.namespace) {
+    if (!/^[a-z]+[-]?$/.test(options.namespace)) {
+      throw Error('options.namespace must be a string of lowercase characters only');
+    }
+
+    if (!/-$/.test(options.namespace)) {
+      options.namespace += '-';
+    }
+  }
+}
+/**
+ *
+ * @param {string|Element|MathField} element
+ * @param {Object.<string, any>} [options={}]
+ * @param {string} options.namespace The namespace used for the `data-`
+ * attributes. If you used a namespace with `renderMathInElement`, you must
+ * use the same namespace here.
+ * @function module:mathlive#revertToOriginalContent
+ */
+
+
+function revertToOriginalContent(element, options) {
+  element = getElement(element); // element is a pair: accessible span, math -- set it to the math part
+
+  element = element.children[1];
+
+  if (element instanceof _editorMathfield.default.MathField) {
+    element.revertToOriginalContent();
+  } else {
+    options = options || {};
+    validateNamespace(options);
+    element.innerHTML = element.getAttribute('data-' + (options.namespace || '') + 'original-content');
+  }
+}
+/**
+ * After calling {@linkcode module:mathlive#renderMathInElement renderMathInElement}
+ * or {@linkcode module:mathlive#makeMathField makeMathField} the original content
+ * can be retrived by calling this function.
+ * 
+ * Given the following markup:
+ * ```html
+ * <span id='equation'>$$f(x)=sin(x)$$</span>
+ * ```
+ * The following code:
+ * ```javascript
+ * MathLive.renderMathInElement('equation');
+ * console.log(MathLive.getOriginalContent('equation'));
+ * ```
+ * will output:
+ * ```
+ * $$f(x)=sin(x)$$
+ * ```
+ * @param {string | Element | MathField} element - A DOM element ID, a DOM 
+ * element or a MathField.
+ * @param {object} [options={}]
+ * @param {string} [options.namespace=""] The namespace used for the `data-`
+ * attributes. 
+ * If you used a namespace with `renderMathInElement`, you must
+ * use the same namespace here.
+ * @return {string} the original content of the element.
+ * @function module:mathlive#getOriginalContent
+ */
+
+
+function getOriginalContent(element, options) {
+  element = getElement(element); // element is a pair: accessible span, math -- set it to the math part
+
+  element = element.children[1];
+
+  if (element instanceof _editorMathfield.default.MathField) {
+    return element.originalContent;
+  }
+
+  options = options || {};
+  validateNamespace(options);
+  return element.getAttribute('data-' + (options.namespace || '') + 'original-content');
+}
+
+var MathLive = {
+  latexToMarkup: toMarkup,
+  latexToMathML: toMathML,
+  latexToSpeakableText: latexToSpeakableText,
+  latexToAST: latexToAST,
+  makeMathField: makeMathField,
+  renderMathInDocument: renderMathInDocument,
+  renderMathInElement: renderMathInElement,
+  revertToOriginalContent: revertToOriginalContent,
+  getOriginalContent: getOriginalContent,
+  readAloud: readAloud,
+  readAloudStatus: readAloudStatus,
+  pauseReadAloud: pauseReadAloud,
+  resumeReadAloud: resumeReadAloud,
+  playReadAloud: playReadAloud
+};
+var _default = MathLive;
+exports.default = _default;
\ No newline at end of file
diff --git a/dist/vue-mathlive.js b/dist/vue-mathlive.js
new file mode 100644
index 000000000..e7b058244
--- /dev/null
+++ b/dist/vue-mathlive.js
@@ -0,0 +1,206 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+var _default2 = {
+  name: 'mathlive-mathfield',
+  template: '<div class="mathfield" :id="id"><slot></slot></div>',
+  props: {
+    id: {
+      type: String,
+      default: ''
+    },
+    value: {
+      type: String,
+      default: ''
+    },
+    config: {
+      type: Object,
+      default: function _default() {
+        return {};
+      }
+    },
+    onKeystroke: {
+      type: Function,
+      default: function _default(_keystroke, _ev) {
+        return true;
+      }
+    },
+    onMoveOutOf: {
+      type: Function,
+      default: function _default(_direction) {
+        return true;
+      }
+    },
+    onTabOutOf: {
+      type: Function,
+      default: function _default(_direction) {
+        return true;
+      }
+    }
+  },
+
+  /**
+   * To register this component, call:
+   * ```
+   *     import MathLive from './mathlive.mjs';
+   *     import Mathfield from './vue-mathlive.mjs';
+   *     Vue.use(Mathfield, MathLive);
+   * ```
+   * 
+   * The HTML tag for this component is `<mathlive-mathfield>`
+   * 
+   * @param {object} vue - This module, as returned from an import statement
+   * @param {object} mathlive - The MathLive module, as returned from an import
+   * statement
+   */
+  install: function install(vue, mathlive) {
+    // When the component is installed (with Vue.use()), the first argument
+    // should be the component (as received from import) and the second 
+    // should be the MathLive module (also as received from import).
+    // The MathLive module then gets stashed as a property of the Vue 
+    // object to be accessed later by the component implementation.
+    // This allows the user of the component to control which version of 
+    // the MathLive module gets used.
+    Object.defineProperty(vue.prototype, '$mathlive', {
+      value: mathlive
+    });
+    vue.component('mathlive-mathfield', this);
+  },
+  watch: {
+    value: function value(newValue, oldValue) {
+      // When the `value` prop (from the model) is modified
+      // update the mathfield to stay in sync, but don't send back content
+      // change notifications, to avoid infinite loops.
+      if (newValue !== oldValue) {
+        this.$el.mathfield.latex(newValue, {
+          suppressChangeNotifications: true
+        });
+      }
+    },
+    config: {
+      deep: true,
+      handler: function handler(config) {
+        this.$el.mathfield.$setConfig(config);
+      }
+    }
+  },
+  mounted: function mounted() {
+    // A new instance is being created
+    var vm = this; // Keep a reference to the ViewModel
+    // Wait until the DOM has been constructed...
+
+    this.$nextTick(function () {
+      // ... then make the MathField
+      vm.$mathlive.makeMathField(vm.$el, _objectSpread({}, vm.config, {
+        // To support the 'model' directive, this handler will connect 
+        // the content of the mathfield to the ViewModel
+        onContentDidChange: function onContentDidChange(_) {
+          // When the mathfield is updated, notify the model.
+          // The initial input value is generated from the <slot>
+          // content, so it may need to be updated.
+          vm.$emit('input', vm.$el.mathfield.latex());
+        },
+        // Those asynchronous notification handlers are translated to events
+        onFocus: function onFocus(_) {
+          vm.$emit('focus');
+        },
+        onBlur: function onBlur(_) {
+          vm.$emit('blur');
+        },
+        onContentWillChange: function onContentWillChange(_) {
+          vm.$emit('content-will-change');
+        },
+        onSelectionWillChange: function onSelectionWillChange(_) {
+          vm.$emit('selection-will-change');
+        },
+        onUndoStateWillChange: function onUndoStateWillChange(_, command) {
+          vm.$emit('undo-state-will-change', command);
+        },
+        onUndoStateDidChange: function onUndoStateDidChange(_, command) {
+          vm.$emit('undo-state-did-change', command);
+        },
+        onVirtualKeyboardToggle: function onVirtualKeyboardToggle(_, visible, keyboardElement) {
+          vm.$emit('virtual-keyboard-toggle', visible, keyboardElement);
+        },
+        onReadAloudStatus: function onReadAloudStatus(_, status) {
+          vm.$emit('read-aloud-status', status);
+        },
+        // Those notification handlers expect an answer back, so translate
+        // them to callbacks via props
+        onKeystroke: function onKeystroke(_, keystroke, ev) {
+          return vm.onKeystroke(keystroke, ev);
+        },
+        onMoveOutOf: function onMoveOutOf(_, direction) {
+          return vm.onMoveOutOf(direction);
+        },
+        onTabOutOf: function onTabOutOf(_, direction) {
+          return vm.onTabOutOf(direction);
+        }
+      }));
+    });
+  },
+  methods: {
+    /**
+     * 
+     * @param {string} selector 
+     */
+    perform: function perform(selector) {
+      this.$el.mathfield.$perform(selector);
+    },
+
+    /**
+     * @return {boolean}
+     */
+    hasFocus: function hasFocus() {
+      return this.$el.mathfield.$hasFocus();
+    },
+    focus: function focus() {
+      this.$el.mathfield.$focus();
+    },
+    blur: function blur() {
+      this.$el.mathfield.$blur();
+    },
+    text: function text(format) {
+      return this.$el.mathfield.$text(format);
+    },
+    selectedText: function selectedText(format) {
+      return this.$el.mathfield.$selectedText(format);
+    },
+    insert: function insert(text, options) {
+      this.$el.mathfield.$insert(text, options);
+    },
+    keystroke: function keystroke(keys, evt) {
+      return this.$el.mathfield.$keystroke(keys, evt);
+    },
+    typedText: function typedText(text) {
+      this.$el.mathfield.$keystroke(text);
+    },
+    selectionIsCollapsed: function selectionIsCollapsed() {
+      return this.$el.mathfield.$selectionIsCollapsed();
+    },
+    selectionDepth: function selectionDepth() {
+      return this.$el.mathfield.$selectionDepth();
+    },
+    selectionAtStart: function selectionAtStart() {
+      return this.$el.mathfield.$selectionAtStart();
+    },
+    selectionAtEnd: function selectionAtEnd() {
+      return this.$el.mathfield.$selectionAtEnd();
+    },
+    select: function select() {
+      this.$el.mathfield.$select();
+    },
+    clearSelection: function clearSelection() {
+      this.$el.mathfield.$clearSelection();
+    }
+  }
+};
+exports.default = _default2;
\ No newline at end of file