From 7fb32b51d2a94b5354924ea2d45d1e198b4d79cf Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Fri, 31 Jan 2020 21:51:40 -0800 Subject: [PATCH 01/28] deps --- CHANGELOG.md | 4 + npm-shrinkwrap.json | 1531 +++++++++++++++++++++++-------------------- package.json | 14 +- 3 files changed, 847 insertions(+), 702 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 9a6f4fcce..63d615f27 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -12,6 +12,10 @@ - Fix keyboard shortcuts, e.g. "alt+(" or "alt+v" - Fix #354: The argument of `\operatorname` is of type 'math', not 'text'. This means that using the '\text' command inside the argument is valid and that spaces should be ignored by default (but the `~` character can be used to insert a space in that context). +### Features / Improvements + +- Documented `suppressChangeNotifications` options for `$insert()` + ## 0.33 (December 16, 2019) ### Bug Fixes diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json index ee04965d5..c00298313 100644 --- a/npm-shrinkwrap.json +++ b/npm-shrinkwrap.json @@ -5,9 +5,9 @@ "requires": true, "dependencies": { "@babel/cli": { - "version": "7.8.3", - "resolved": "https://registry.npmjs.org/@babel/cli/-/cli-7.8.3.tgz", - "integrity": "sha512-K2UXPZCKMv7KwWy9Bl4sa6+jTNP7JyDiHKzoOiUUygaEDbC60vaargZDnO9oFMvlq8pIKOOyUUgeMYrsaN9djA==", + "version": "7.8.4", + "resolved": "https://registry.npmjs.org/@babel/cli/-/cli-7.8.4.tgz", + "integrity": "sha512-XXLgAm6LBbaNxaGhMAznXXaxtCWfuv6PIDJ9Alsy9JYTOh+j2jJz+L/162kkfU1j/pTSxK1xGmlwI4pdIMkoag==", "dev": true, "requires": { "chokidar": 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"^1.1.1", - "fs-minipass": "^1.2.5", - "minipass": "^2.3.4", - "minizlib": "^1.1.1", - "mkdirp": "^0.5.0", - "safe-buffer": "^5.1.2", - "yallist": "^3.0.2" - }, - "dependencies": { - "yallist": { - "version": "3.1.1", - "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz", - "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==", - "dev": true, - "optional": true - } - } - }, "terser": { "version": "4.6.2", "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.2.tgz", @@ -11360,9 +11510,9 @@ } }, "upath": { - "version": "1.1.2", - "resolved": "https://registry.npmjs.org/upath/-/upath-1.1.2.tgz", - "integrity": "sha512-kXpym8nmDmlCBr7nKdIx8P2jNBa+pBpIUFRnKJ4dr8htyYGJFokkr2ZvERRtUN+9SY+JqXouNgUPtv6JQva/2Q==", + "version": "1.2.0", + "resolved": "https://registry.npmjs.org/upath/-/upath-1.2.0.tgz", + "integrity": "sha512-aZwGpamFO61g3OlfT7OQCHqhGnW43ieH9WZeP7QxN/G/jS4jfqUkZxoryvJgVPEcrl5NL/ggHsSmLMHuH64Lhg==", "dev": true, "optional": true }, @@ -11473,16 +11623,6 @@ "integrity": "sha1-Zws6+8VS4LVd9rd4DKdGFfI60cs=", "dev": true }, - "wide-align": { - "version": "1.1.3", - "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz", - "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==", - "dev": true, - "optional": true, - "requires": { - "string-width": "^1.0.2 || 2" - } - }, "word-wrap": { "version": "1.2.3", "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz", @@ -11574,7 +11714,8 @@ "wrappy": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz", - "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=" + "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=", + "dev": true }, "write": { "version": "1.0.3", diff --git a/package.json b/package.json index 1dc76d06d..dd3bebfca 100644 --- a/package.json +++ b/package.json @@ -99,29 +99,29 @@ ], "bugs": "https://github.com/arnog/mathlive/issues/", "devDependencies": { - "@babel/cli": "^7.8.3", - "@babel/core": "^7.8.3", - "@babel/preset-env": "^7.8.3", + "@babel/cli": "^7.8.4", + "@babel/core": "^7.8.4", + "@babel/preset-env": "^7.8.4", "@babel/register": "^7.8.3", "@cortex-js/prettier-config": "^1.0.0", "autoprefixer": "^9.7.4", "chokidar-cli": "^2.1.0", "cssnano": "^4.1.10", "eslint": "^6.8.0", - "eslint-config-prettier": "^6.7.0", + "eslint-config-prettier": "^6.10.0", "eslint-plugin-prettier": "^3.1.2", "eslint-watch": "^6.0.1", "http-server": "^0.12.1", "husky": "^4.2.1", "jsdoc": "^3.6.3", "less": "^3.10.3", - "lint-staged": "^10.0.2", + "lint-staged": "^10.0.7", "npm-run-all": "^4.1.5", "nyc": "^15.0.0", "postcss-cli": "^7.1.0", "prettier": "^1.19.1", - "rimraf": "^3.0.0", - "rollup": "^1.29.1", + "rimraf": "^3.0.1", + "rollup": "^1.31.0", "rollup-plugin-copy": "^3.3.0", "rollup-plugin-terser": "^5.2.0", "sutro-jsdoc-theme": "^1.0", From e0f2315a9b87960b438552d7f691e26690d66a42 Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Sat, 1 Feb 2020 15:13:01 -0800 Subject: [PATCH 02/28] chore: update README for 2020 --- README.md | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/README.md b/README.md index 9f32b759d..701e766fa 100644 --- a/README.md +++ b/README.md @@ -1,6 +1,6 @@ math live -[![Maintenance](https://img.shields.io/maintenance/yes/2019.svg)]() +[![Maintenance](https://img.shields.io/maintenance/yes/2020.svg)]() [![GitHub license](https://img.shields.io/badge/license-MIT-brightgreen.svg)](https://raw.githubusercontent.com/arnog/mathlive/master/LICENSE.txt) [![Build Status](https://travis-ci.org/arnog/mathlive.svg?branch=master)](https://travis-ci.org/arnog/mathlive) @@ -8,12 +8,14 @@ Screenshot -MathLive is a JavaScript library to render and edit math. +MathLive: Math Input Made Easy -- [x] TeX-quality typesetting -- [x] Easy to use interface for math editing -- [x] Fast and small -- [x] Works great on desktop and on mobile devices thanks to an extensive set of virtual keyboards +- [x] JavaScript library easy to integrate in your project +- [x] Beautiful, TeX-quality typesetting +- [x] Easy to use interface for formula editing +- [x] Designed for mobile devices with an extensive set of virtual keyboards +- [x] Accessility support: screen reader compatible, and includes custom + math-to-speech support - [x] Outputs **LaTeX**, **MathML** and **MathJSON** (Abstract Syntax Tree) - [x] And it is easy to customize to your needs! From b528b8bf1f7aebfac28f31ede8b80172a1962f31 Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Mon, 3 Feb 2020 09:12:39 -0800 Subject: [PATCH 03/28] bug: adjust lineheight of text to display correctly in some cases --- css/mathlive.core.less | 92 ++++++++++++++++++++++-------------------- 1 file changed, 49 insertions(+), 43 deletions(-) diff --git a/css/mathlive.core.less b/css/mathlive.core.less index 90e0271fb..64b775cdc 100644 --- a/css/mathlive.core.less +++ b/css/mathlive.core.less @@ -1,6 +1,5 @@ @math_main: KaTeX_Main; - .ML__mathlive { // font: 400 100% @math_main,'times new roman',serif; line-height: 0; @@ -25,7 +24,7 @@ width: min-content; - // Encourage browsers to consider allocating a hardware accelerated + // Encourage browsers to consider allocating a hardware accelerated // layer for this element. transform: translateZ(0); } @@ -36,7 +35,8 @@ cursor: text; } -.ML__strut, .ML__strut--bottom { +.ML__strut, +.ML__strut--bottom { display: inline-block; min-height: 1em; } @@ -77,22 +77,32 @@ /* Text mode */ .ML__text { + line-height: 1; white-space: pre; } .ML__focused .ML__text { - background: hsla(var(--hue), 40%, 50%, .1); + background: hsla(var(--hue), 40%, 50%, 0.1); } -@keyframes ML__caret-command-blink { - from, to { opacity: 1; } - 50% { opacity: 0; } +@keyframes ML__caret-command-blink { + from, + to { + opacity: 1; + } + 50% { + opacity: 0; + } } - -@keyframes ML__caret-blink { - from, to { border-color: var(--caret); } - 50% { border-color: transparent; } +@keyframes ML__caret-blink { + from, + to { + border-color: var(--caret); + } + 50% { + border-color: transparent; + } } /* Style for the invisible textarea element which is used @@ -114,13 +124,12 @@ to make sure it doesn't show. */ font-size: 16px; } - .ML__fieldcontainer { display: flex; flex-flow: row; justify-content: space-between; align-items: flex-end; - min-height: 39px; /* Need some room for the virtual keyboard toggle */ + min-height: 39px; /* Need some room for the virtual keyboard toggle */ /* Prevent the browser from trying to interpret touch gestures in the field */ /* "Disabling double-tap to zoom removes the need for browsers to @@ -129,7 +138,7 @@ to make sure it doesn't show. */ width: 100%; --hue: 212; - --highlight: hsl(var(--hue),97%,85%); + --highlight: hsl(var(--hue), 97%, 85%); // --highlight: Highlight; // Highlight color defined in https://www.w3.org/TR/REC-CSS2/ui.html // // It has been deprectated in https://www.w3.org/TR/css-color-3/ :( // --on-highlight: HighlightText; @@ -137,26 +146,26 @@ to make sure it doesn't show. */ --highlight-inactive: #ccc; --primary: hsl(var(--hue), 40%, 50%); - --secondary: hsl(var(--hue),19%,26%); - --on-secondary: hsl(var(--hue),19%,26%); + --secondary: hsl(var(--hue), 19%, 26%); + --on-secondary: hsl(var(--hue), 19%, 26%); } @media (prefers-color-scheme: dark) { - body:not([theme="light"]) .ML__fieldcontainer { + body:not([theme='light']) .ML__fieldcontainer { --highlight: hsl(var(--hue), 40%, 49%); --highlight-inactive: hsl(var(--hue), 10%, 35%); - --caret: hsl(var(--hue),97%,85%); - --secondary: hsl(var(--hue),25%,35%); - --on-secondary: hsl(0,0%,98%); + --caret: hsl(var(--hue), 97%, 85%); + --secondary: hsl(var(--hue), 25%, 35%); + --on-secondary: hsl(0, 0%, 98%); } } -body[theme="dark"] .ML__fieldcontainer { +body[theme='dark'] .ML__fieldcontainer { --highlight: hsl(var(--hue), 40%, 49%); --highlight-inactive: hsl(var(--hue), 10%, 35%); - --caret: hsl(var(--hue),97%,85%); - --secondary: hsl(var(--hue),25%,35%); - --on-secondary: hsl(0,0%,98%); + --caret: hsl(var(--hue), 97%, 85%); + --secondary: hsl(var(--hue), 25%, 35%); + --on-secondary: hsl(0, 0%, 98%); } .ML__fieldcontainer:focus { @@ -165,7 +174,7 @@ body[theme="dark"] .ML__fieldcontainer { } /* This is the actual field content (formula) */ -.ML__fieldcontainer__field { +.ML__fieldcontainer__field { align-self: center; position: relative; overflow: hidden; @@ -174,8 +183,6 @@ body[theme="dark"] .ML__fieldcontainer { width: 100%; } - - .ML__virtual-keyboard-toggle { display: flex; align-self: center; @@ -193,28 +200,27 @@ body[theme="dark"] .ML__fieldcontainer { /* Avoid some weird blinking with :hover */ border-radius: 50%; border: 1px solid transparent; - transition: background 0.2s cubic-bezier(.64,.09,.08,1); + transition: background 0.2s cubic-bezier(0.64, 0.09, 0.08, 1); color: var(--primary); fill: currentColor; background: transparent; &:hover { - background: hsl(var(--hue),25%,35%); - color: hsl(0,0%,98%); + background: hsl(var(--hue), 25%, 35%); + color: hsl(0, 0%, 98%); fill: currentColor; border-radius: 50%; // border: 1px solid rgba(255, 255, 255, .9); - box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2); + box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), + 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2); } } - - /* The element that display info while in command mode */ .ML__popover { visibility: hidden; min-width: 160px; - background-color: rgba(97, 97, 97, .95); + background-color: rgba(97, 97, 97, 0.95); color: #fff; text-align: center; border-radius: 6px; @@ -226,23 +232,23 @@ body[theme="dark"] .ML__fieldcontainer { flex-direction: column; justify-content: center; - box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22); - transition: all 0.2s cubic-bezier(.64,.09,.08,1); + box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22); + transition: all 0.2s cubic-bezier(0.64, 0.09, 0.08, 1); /* The 'tip' of the popover panel */ &::after { - content: ""; + content: ''; position: absolute; top: -5px; left: calc(50% - 3px); - width: 0; - height: 0; + width: 0; + height: 0; border-left: 5px solid transparent; border-right: 5px solid transparent; - + font-size: 1rem; - - border-bottom: 5px solid rgba(97, 97, 97, .9); + + border-bottom: 5px solid rgba(97, 97, 97, 0.9); } } @@ -250,7 +256,7 @@ body[theme="dark"] .ML__fieldcontainer { &::after { top: auto; bottom: -5px; - border-top: 5px solid rgba(97, 97, 97, .9); + border-top: 5px solid rgba(97, 97, 97, 0.9); border-bottom: 0; } } From e67ea4d44610c74998e32180afaf417054eb48dc Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Mon, 3 Feb 2020 09:13:23 -0800 Subject: [PATCH 04/28] bug: correctly parse \mathop and double-minus --- src/addons/mathJson.js | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/src/addons/mathJson.js b/src/addons/mathJson.js index 35d607641..70fd94dcd 100644 --- a/src/addons/mathJson.js +++ b/src/addons/mathJson.js @@ -591,6 +591,7 @@ const SUPER_ASSOCIATIVE_FUNCTION = { }; function getString(atom) { + if (typeof atom === 'string') return atom; if (Array.isArray(atom)) { let result = ''; for (const subAtom of atom) { @@ -1078,9 +1079,7 @@ function parseDigraph(expr) { } else { const digraph = expr.atoms[expr.index].latex + expr.atoms[expr.index + 1].latex; - const result = /^(>=|<=|>>|<<|:=|!=|\*\*|\+\+|--)$/.test(digraph) - ? digraph - : ''; + const result = /^(>=|<=|>>|<<|:=|!=)$/.test(digraph) ? digraph : ''; if (result) { expr.index += 1; } From a29430bb014fb38be8cfeda86e565785f5d1cff1 Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Mon, 3 Feb 2020 10:52:14 -0800 Subject: [PATCH 05/28] bug: correctly parse roots when generating MathJSON --- src/addons/mathJson.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/addons/mathJson.js b/src/addons/mathJson.js index 70fd94dcd..a30496fbe 100644 --- a/src/addons/mathJson.js +++ b/src/addons/mathJson.js @@ -1733,7 +1733,7 @@ MathAtom.MathAtom.prototype.toAST = function(options) { result = wrapFn( 'pow', parse(this.body, options), - wrapFn('divide', 1, parse(this.index, options)) + wrapFn('divide', wrapNum(1), parse(this.index, options)) ); } else { result = wrapFn('sqrt', parse(this.body, options)); From 32a747b82f2ce7b5c49d53bff48318fd2ba9891b Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Mon, 3 Feb 2020 10:59:00 -0800 Subject: [PATCH 06/28] dist --- dist/mathlive.core.css | 222 +- dist/mathlive.js | 21029 +++++++++++++++++++++++++++++++++- dist/mathlive.mjs | 2 +- dist/src/addons/mathJson.js | 7 +- 4 files changed, 21253 insertions(+), 7 deletions(-) diff --git a/dist/mathlive.core.css b/dist/mathlive.core.css index ee7e1ef2e..99667cad6 100644 --- a/dist/mathlive.core.css +++ b/dist/mathlive.core.css @@ -1 +1,221 @@ -.ML__mathlive{line-height:0;direction:ltr;text-align:left;text-indent:0;text-rendering:auto;font-style:normal;font-size-adjust:none;letter-spacing:normal;word-wrap:normal;word-spacing:normal;white-space:nowrap;display:inline-block;text-shadow:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;width:-webkit-min-content;width:-moz-min-content;width:min-content;transform:translateZ(0)}.ML__base{display:inline-block;position:relative;cursor:text}.ML__strut,.ML__strut--bottom{display:inline-block;min-height:1em}.ML__caret:after{content:"";border:none;border-radius:2px;border-right:2px solid var(--caret);margin-right:-2px;position:relative;left:-1px;-webkit-animation:ML__caret-blink 1.05s step-end infinite forwards;animation:ML__caret-blink 1.05s step-end infinite forwards}.ML__text-caret:after{content:"";border:none;border-radius:1px;border-right:1px solid var(--caret);margin-right:-1px;position:relative;left:0;-webkit-animation:ML__caret-blink 1.05s step-end infinite forwards;animation:ML__caret-blink 1.05s step-end infinite forwards}.ML__command-caret:after{content:"_";border:none;margin-right:-1ex;position:relative;color:var(--caret);-webkit-animation:ML__caret-command-blink 1.05s step-end infinite forwards;animation:ML__caret-command-blink 1.05s step-end infinite forwards}.ML__text{white-space:pre}.ML__focused .ML__text{background:hsla(var(--hue),40%,50%,.1)}@-webkit-keyframes ML__caret-command-blink{0%,to{opacity:1}50%{opacity:0}}@keyframes ML__caret-command-blink{0%,to{opacity:1}50%{opacity:0}}@-webkit-keyframes ML__caret-blink{0%,to{border-color:var(--caret)}50%{border-color:transparent}}@keyframes ML__caret-blink{0%,to{border-color:var(--caret)}50%{border-color:transparent}}.ML__textarea__textarea{transform:scale(0);resize:none;position:absolute;clip:rect(0 0 0 0);width:1px;height:1px;font-size:16px}.ML__fieldcontainer{display:flex;flex-flow:row;justify-content:space-between;align-items:flex-end;min-height:39px;touch-action:none;width:100%;--hue:212;--highlight:hsl(var(--hue),97%,85%);--caret:hsl(var(--hue),40%,49%);--highlight-inactive:#ccc;--primary:hsl(var(--hue),40%,50%);--secondary:hsl(var(--hue),19%,26%);--on-secondary:hsl(var(--hue),19%,26%)}@media (prefers-color-scheme:dark){body:not([theme=light]) .ML__fieldcontainer{--highlight:hsl(var(--hue),40%,49%);--highlight-inactive:hsl(var(--hue),10%,35%);--caret:hsl(var(--hue),97%,85%);--secondary:hsl(var(--hue),25%,35%);--on-secondary:#fafafa}}body[theme=dark] .ML__fieldcontainer{--highlight:hsl(var(--hue),40%,49%);--highlight-inactive:hsl(var(--hue),10%,35%);--caret:hsl(var(--hue),97%,85%);--secondary:hsl(var(--hue),25%,35%);--on-secondary:#fafafa}.ML__fieldcontainer:focus{outline:2px solid var(--primary);outline-offset:3px}.ML__fieldcontainer__field{align-self:center;position:relative;overflow:hidden;line-height:0;padding:2px;width:100%}.ML__virtual-keyboard-toggle{display:flex;align-self:center;align-items:center;flex-shrink:0;flex-direction:column;justify-content:center;width:34px;height:34px;padding:0;margin-right:4px;cursor:pointer;box-sizing:border-box;border-radius:50%;border:1px solid transparent;transition:background .2s cubic-bezier(.64,.09,.08,1);color:var(--primary);fill:currentColor;background:transparent}.ML__virtual-keyboard-toggle:hover{background:hsl(var(--hue),25%,35%);color:#fafafa;fill:currentColor;border-radius:50%;box-shadow:0 2px 2px 0 rgba(0,0,0,.14),0 1px 5px 0 rgba(0,0,0,.12),0 3px 1px -2px rgba(0,0,0,.2)}.ML__popover{visibility:hidden;min-width:160px;background-color:rgba(97,97,97,.95);color:#fff;text-align:center;border-radius:6px;position:fixed;z-index:1;display:flex;flex-direction:column;justify-content:center;box-shadow:0 14px 28px rgba(0,0,0,.25),0 10px 10px rgba(0,0,0,.22);transition:all .2s cubic-bezier(.64,.09,.08,1)}.ML__popover:after{content:"";position:absolute;top:-5px;left:calc(50% - 3px);width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;font-size:1rem;border-bottom:5px solid rgba(97,97,97,.9)}.reverse-direction:after{top:auto;bottom:-5px;border-top:5px solid rgba(97,97,97,.9);border-bottom:0} \ No newline at end of file +.ML__mathlive { + line-height: 0; + direction: ltr; + text-align: left; + text-indent: 0; + text-rendering: auto; + font-style: normal; + font-size-adjust: none; + letter-spacing: normal; + word-wrap: normal; + word-spacing: normal; + white-space: nowrap; + display: inline-block; + text-shadow: none; + -webkit-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; + width: -webkit-min-content; + width: -moz-min-content; + width: min-content; + transform: translateZ(0); +} +.ML__base { + display: inline-block; + position: relative; + cursor: text; +} +.ML__strut, +.ML__strut--bottom { + display: inline-block; + min-height: 1em; +} +.ML__caret:after { + content: ''; + border: none; + border-radius: 2px; + border-right: 2px solid var(--caret); + margin-right: -2px; + position: relative; + left: -1px; + -webkit-animation: ML__caret-blink 1.05s step-end infinite forwards; + animation: ML__caret-blink 1.05s step-end infinite forwards; +} +.ML__text-caret:after { + content: ''; + border: none; + border-radius: 1px; + border-right: 1px solid var(--caret); + margin-right: -1px; + position: relative; + left: 0; + -webkit-animation: ML__caret-blink 1.05s step-end infinite forwards; + animation: ML__caret-blink 1.05s step-end infinite forwards; +} +.ML__command-caret:after { + content: '_'; + border: none; + margin-right: -1ex; + position: relative; + color: var(--caret); + -webkit-animation: ML__caret-command-blink 1.05s step-end infinite forwards; + animation: ML__caret-command-blink 1.05s step-end infinite forwards; +} +.ML__text { + line-height: 1; + white-space: pre; +} +.ML__focused .ML__text { + background: hsla(var(--hue), 40%, 50%, 0.1); +} +@-webkit-keyframes ML__caret-command-blink { + 0%, + to { + opacity: 1; + } + 50% { + opacity: 0; + } +} +@keyframes ML__caret-command-blink { + 0%, + to { + opacity: 1; + } + 50% { + opacity: 0; + } +} +@-webkit-keyframes ML__caret-blink { + 0%, + to { + border-color: var(--caret); + } + 50% { + border-color: transparent; + } +} +@keyframes ML__caret-blink { + 0%, + to { + border-color: var(--caret); + } + 50% { + border-color: transparent; + } +} +.ML__textarea__textarea { + transform: scale(0); + resize: none; + position: absolute; + clip: rect(0 0 0 0); + width: 1px; + height: 1px; + font-size: 16px; +} +.ML__fieldcontainer { + display: flex; + flex-flow: row; + justify-content: space-between; + align-items: flex-end; + min-height: 39px; + touch-action: none; + width: 100%; + --hue: 212; + --highlight: hsl(var(--hue), 97%, 85%); + --caret: hsl(var(--hue), 40%, 49%); + --highlight-inactive: #ccc; + --primary: hsl(var(--hue), 40%, 50%); + --secondary: hsl(var(--hue), 19%, 26%); + --on-secondary: hsl(var(--hue), 19%, 26%); +} +@media (prefers-color-scheme: dark) { + body:not([theme='light']) .ML__fieldcontainer { + --highlight: hsl(var(--hue), 40%, 49%); + --highlight-inactive: hsl(var(--hue), 10%, 35%); + --caret: hsl(var(--hue), 97%, 85%); + --secondary: hsl(var(--hue), 25%, 35%); + --on-secondary: #fafafa; + } +} +body[theme='dark'] .ML__fieldcontainer { + --highlight: hsl(var(--hue), 40%, 49%); + --highlight-inactive: hsl(var(--hue), 10%, 35%); + --caret: hsl(var(--hue), 97%, 85%); + --secondary: hsl(var(--hue), 25%, 35%); + --on-secondary: #fafafa; +} +.ML__fieldcontainer:focus { + outline: 2px solid var(--primary); + outline-offset: 3px; +} +.ML__fieldcontainer__field { + align-self: center; + position: relative; + overflow: hidden; + line-height: 0; + padding: 2px; + width: 100%; +} +.ML__virtual-keyboard-toggle { + display: flex; + align-self: center; + align-items: center; + flex-shrink: 0; + flex-direction: column; + justify-content: center; + width: 34px; + height: 34px; + padding: 0; + margin-right: 4px; + cursor: pointer; + box-sizing: border-box; + border-radius: 50%; + border: 1px solid transparent; + transition: background 0.2s cubic-bezier(0.64, 0.09, 0.08, 1); + color: var(--primary); + fill: currentColor; + background: transparent; +} +.ML__virtual-keyboard-toggle:hover { + background: hsl(var(--hue), 25%, 35%); + color: #fafafa; + fill: currentColor; + border-radius: 50%; + box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), + 0 3px 1px -2px rgba(0, 0, 0, 0.2); +} +.ML__popover { + 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=_e(e.array);i>=0;i--)t(Ce(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},we.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const 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},we.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=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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=_e(i.array);let s=e-1;for(;!t&&s0)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)}},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=Se(this);i=this.extent+t;const a=e+i;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)},we.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=Se(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),n<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&&n0&&(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)}},we.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)},we.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=Se(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"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 this.suppressChangeNotifications=i,!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},we.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},we.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},we.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];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=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},we.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=At.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;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),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},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new te.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},we.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))},we.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++},we.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.row0){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 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>ks(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,ys(this.textarea,"cut",this),ys(this.textarea,"copy",this),ys(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,xs(this.popover),xs(this.keystrokeCaption),xs(this.virtualKeyboard),xs(document.getElementById("mathlive-alternate-keys-panel")),ys(this.element,"pointerdown",this),ys(this.element,"touchstart:active mousedown",this),ys(this.element,"focus",this),ys(this.element,"blur",this),ys(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let i;return Array.from(e.children).forEach((function(e){i=i||t(e)})),i}(this.field);if(t){const e=t.getBoundingClientRect();return{x:e.right,y:e.bottom,height:e.height}}return null}_getSelectionBounds(){const t=this.field.querySelectorAll(".ML__selected");if(t&&t.length>0){const e={top:1/0,bottom:-1/0,left:1/0,right:-1/0};t.forEach(t=>{const i=t.getBoundingClientRect();i.lefte.right&&(e.right=i.right),i.bottom>e.bottom&&(e.bottom=i.bottom),i.top=t.left&&i<=t.right}return o&&e.children&&Array.from(e.children).forEach((function(e){const o=t(e,i,s);o.element&&o.distance<=a.distance&&(a=o)})),a}(this.field,t,e).element,o=a?a.getAttribute("data-atom-id"):null;if(o){const 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=me.pathFromString(e[0]).path,0===i.bias){const e=a.getBoundingClientRect();tt.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()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){if(this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,i=this._pathFromPoint(d,p,{bias:0}),i){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),i=me.clone(this.mathlist.path),i[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||Ss>2?(n(t),3!==t.detail&&3!==Ss||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(gs(e.field,"pointermove",h),gs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(gs(window,"blur",n),t.touches?(gs(t.target,"touchmove",h),gs(t.target,"touchend",n)):(gs(window,"mousemove",h),gs(window,"mouseup",n))),2!==t.detail&&2!==Ss||(a=!0,this.mathlist.selectGroup_()))}}else ws=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 As(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+=As(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof 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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=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(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),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(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),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){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))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()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(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(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=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=ve.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=At.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;iks(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1});const e=this.$hasFocus();this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0});const i=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=$.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=$.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=$.makeSpan("","ML__strut--bottom");t.setStyle("height",s.height+s.depth,"em"),t.setStyle("vertical-align",-s.depth,"em"),o.push(t)}o.push(s);const n=$.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=hi[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&hi[a]?hi[a]:a&&di[a]?di[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=di[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=te.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const i=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=he.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.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),Je.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(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)),gs(t,"mousedown 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this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(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=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",e.withHighlighting&&(s.generateID=!0));const a=te.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}}let ws,Ss=0;function As(t,e,i){const s=Object.assign({},t.config);return s.textToSpeechMarkup="",s.textToSpeechRulesOptions=s.textToSpeechRulesOptions||{},s.textToSpeechRulesOptions.markup="none",e+te.toSpeakableText(i,s)}function Ms(t,e,i,s){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>{})),t._resetKeystrokeBuffer()):"delete"===e?a=As(t,"deleted: ",s):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(i):"replacement"===e?a=As(t,"",t.mathlist.sibling(0)):"line"===e?(a=As(t,"",t.mathlist.root),t.accessibleNode.innerHTML=''+te.toMathML(t.mathlist.root,t.config)+"",t.textarea.setAttribute("aria-label","after: "+a)):a=s?As(t,e+" ",s):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}vs.prototype.undo_=vs.prototype.undo,vs.prototype.redo_=vs.prototype.redo,vs.prototype.scrollIntoView_=vs.prototype.scrollIntoView,vs.prototype.scrollToStart_=vs.prototype.scrollToStart,vs.prototype.scrollToEnd_=vs.prototype.scrollToEnd,vs.prototype.insert_=vs.prototype.$insert;var Cs={isValidMathfield:ks,MathField:vs};function _s(t,e,i){let s=i,a=0;const o=t.length;for(;s0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let 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Os(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.time0&&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 Rs(t){let e=t;if("string"==typeof t&&(e=document.getElementById(t),!e))throw Error(`The element with ID "${t}" could not be found.`);return e}function Ks(t,e){Es&&((e=e||{}).renderToMarkup=e.renderToMarkup||qs,e.renderToMathML=e.renderToMathML||Ps,e.renderToSpeakableText=e.renderToSpeakableText||Is,e.macros=e.macros||At.MACROS,Es.renderMathInElement(Rs(t),e))}function Ns(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters 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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,s= 1) { + const s = t.charCodeAt(e - 1), + a = i; + return 55296 <= s && s <= 56319 + ? 1024 * (s - 55296) + (a - 56320) + 65536 + : a; + } + return i; + } + function e(e, s) { + if ((s = s || 0) < 0) return 0; + if (s >= e.length - 1) return e.length; + let a = i(t(e, s)); + for (let r = s + 1; r < e.length; r++) { + if ( + 55296 <= e.charCodeAt(r - 1) && + e.charCodeAt(r - 1) <= 56319 && + 56320 <= e.charCodeAt(r) && + e.charCodeAt(r) <= 57343 + ) + continue; + const s = i(t(e, r)); + if ( + ((n = s), + !( + (11 === (o = a) && 12 === n) || + (3 === o && 11 === n) || + (11 === o && 3 === n) || + (0 === o && 1 === n) || + (2 !== o && + 0 !== o && + 1 !== o && + 2 !== n && + 0 !== n && + 1 !== n && + ((6 === o && + (6 === n || 7 === n || 9 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|| + (51033 <= t && t <= 51059) || + (51061 <= t && t <= 51087) || + (51089 <= t && t <= 51115) || + (51117 <= t && t <= 51143) || + (51145 <= t && t <= 51171) || + (51173 <= t && t <= 51199) || + (51201 <= t && t <= 51227) || + (51229 <= t && t <= 51255) || + (51257 <= t && t <= 51283) || + (51285 <= t && t <= 51311) || + (51313 <= t && t <= 51339) || + (51341 <= t && t <= 51367) || + (51369 <= t && t <= 51395) || + (51397 <= t && t <= 51423) || + (51425 <= t && t <= 51451) || + (51453 <= t && t <= 51479) || + (51481 <= t && t <= 51507) || + (51509 <= t && t <= 51535) || + (51537 <= t && t <= 51563) || + (51565 <= t && t <= 51591) || + (51593 <= t && t <= 51619) || + (51621 <= t && t <= 51647) || + (51649 <= t && t <= 51675) || + (51677 <= t && t <= 51703) || + (51705 <= t && t <= 51731) || + (51733 <= t && t <= 51759) || + (51761 <= t && t <= 51787) || + (51789 <= t && t <= 51815) || + (51817 <= t && t <= 51843) || + (51845 <= t && t <= 51871) || + (51873 <= t && t <= 51899) || + (51901 <= t && t <= 51927) || + (51929 <= t && t <= 51955) || + (51957 <= t && t <= 51983) || + (51985 <= t && t <= 52011) || + (52013 <= t && t <= 52039) || + (52041 <= t && t <= 52067) || + (52069 <= t && t <= 52095) || + (52097 <= t && t <= 52123) || + (52125 <= t && t <= 52151) || + (52153 <= t && t <= 52179) || + (52181 <= t && t <= 52207) || + (52209 <= t && t <= 52235) || + (52237 <= t && t <= 52263) || + (52265 <= t && t <= 52291) || + (52293 <= t && t <= 52319) || + (52321 <= t && t <= 52347) || + (52349 <= t && t <= 52375) || + (52377 <= t && t <= 52403) || + (52405 <= t && t <= 52431) || + (52433 <= t && t <= 52459) || + (52461 <= t && t <= 52487) || + (52489 <= t && t <= 52515) || + (52517 <= t && t <= 52543) || + (52545 <= t && t <= 52571) || + (52573 <= t && t <= 52599) || + (52601 <= t && t <= 52627) || + (52629 <= t && t <= 52655) || + (52657 <= t && t <= 52683) || + (52685 <= t && t <= 52711) || + (52713 <= t && t <= 52739) || + (52741 <= t && t <= 52767) || + (52769 <= t && t <= 52795) || + (52797 <= t && t <= 52823) || + (52825 <= t && t <= 52851) || + (52853 <= t && t <= 52879) || + (52881 <= t && t <= 52907) || + (52909 <= t && t <= 52935) || + (52937 <= t && t <= 52963) || + (52965 <= t && t <= 52991) || + (52993 <= t && t <= 53019) || + (53021 <= t && t <= 53047) || + (53049 <= t && t <= 53075) || + (53077 <= t && t <= 53103) || + (53105 <= t && t <= 53131) || + (53133 <= t && t <= 53159) || + (53161 <= t && t <= 53187) || + (53189 <= t && t <= 53215) || + (53217 <= t && t <= 53243) || + (53245 <= t && t <= 53271) || + (53273 <= t && t <= 53299) || + (53301 <= t && t <= 53327) || + (53329 <= t && t <= 53355) || + (53357 <= t && t <= 53383) || + (53385 <= t && t <= 53411) || + (53413 <= t && t <= 53439) || + (53441 <= t && t <= 53467) || + (53469 <= t && t <= 53495) || + (53497 <= t && t <= 53523) || + (53525 <= t && t <= 53551) || + (53553 <= t && t <= 53579) || + (53581 <= t && t <= 53607) || + (53609 <= t && t <= 53635) || + (53637 <= t && t <= 53663) || + (53665 <= t && t <= 53691) || + (53693 <= t && t <= 53719) || + (53721 <= t && t <= 53747) || + (53749 <= t && t <= 53775) || + (53777 <= t && t <= 53803) || + (53805 <= t && t <= 53831) || + (53833 <= t && t <= 53859) || + (53861 <= t && t <= 53887) || + (53889 <= t && t <= 53915) || + (53917 <= t && t <= 53943) || + (53945 <= t && t <= 53971) || + (53973 <= t && t <= 53999) || + (54001 <= t && t <= 54027) || + (54029 <= t && t <= 54055) || + (54057 <= t && t <= 54083) || + (54085 <= t && t <= 54111) || + (54113 <= t && t <= 54139) || + (54141 <= t && t <= 54167) || + (54169 <= t && t <= 54195) || + (54197 <= t && t <= 54223) || + (54225 <= t && t <= 54251) || + (54253 <= t && t <= 54279) || + (54281 <= t && t <= 54307) || + (54309 <= t && t <= 54335) || + (54337 <= t && t <= 54363) || + (54365 <= t && t <= 54391) || + (54393 <= t && t <= 54419) || + (54421 <= t && t <= 54447) || + (54449 <= t && t <= 54475) || + (54477 <= t && t <= 54503) || + (54505 <= t && t <= 54531) || + (54533 <= t && t <= 54559) || + (54561 <= t && t <= 54587) || + (54589 <= t && t <= 54615) || + (54617 <= t && t <= 54643) || + (54645 <= t && t <= 54671) || + (54673 <= t && t <= 54699) || + (54701 <= t && t <= 54727) || + (54729 <= t && t <= 54755) || + (54757 <= t && t <= 54783) || + (54785 <= t && t <= 54811) || + (54813 <= t && t <= 54839) || + (54841 <= t && t <= 54867) || + (54869 <= t && t <= 54895) || + (54897 <= t && t <= 54923) || + (54925 <= t && t <= 54951) || + (54953 <= t && t <= 54979) || + (54981 <= t && t <= 55007) || + (55009 <= t && t <= 55035) || + (55037 <= t && t <= 55063) || + (55065 <= t && t <= 55091) || + (55093 <= t && t <= 55119) || + (55121 <= t && t <= 55147) || + (55149 <= t && t <= 55175) || + (55177 <= t && t <= 55203) + ? 10 + : 11; + } + var s = function(t) { + if (/^[\x20-\xFF]*$/.test(t)) return t; + const i = []; + let s, + a = 0; + for (; (s = e(t, a)) < t.length; ) i.push(t.slice(a, s)), (a = s); + return a < t.length && i.push(t.slice(a)), i; + }; + class a { + constructor(t, e) { + (this.type = t), (this.value = e); + } + } + class o { + constructor(t) { + (this.s = s(t)), (this.pos = 0); + } + end() { + return this.pos >= this.s.length; + } + get() { + return this.pos < this.s.length ? this.s[this.pos++] : null; + } + peek() { + return this.s[this.pos]; + } + scan(t) { + let e; + return ( + (e = + 'string' == typeof this.s + ? t.exec(this.s.slice(this.pos)) + : t.exec(this.s.slice(this.pos).join(''))), + e ? ((this.pos += e[0].length), e[0]) : null + ); + } + isWhiteSpace() { + return /[ \f\n\r\t\v\xA0\u2028\u2029]/.test(this.s[this.pos]); + } + makeToken() { + if (this.end()) return null; + if (this.isWhiteSpace()) return this.get(), new a('space'); + let t = null; + if ('\\' === this.peek()) { + if ((this.get(), !this.end())) { + let e = this.scan(/^[a-zA-Z*]+/); + 'bgroup' === e + ? (t = new a('{')) + : 'egroup' === e + ? (t = new a('}')) + : (e || (e = this.get()), + (t = new a('command', e))); + } + } else if ('{' === this.peek() || '}' === this.peek()) + t = new a(this.get()); + else if ('#' === this.peek()) { + if ((this.get(), !this.end())) { + let e = !1, + i = this.peek(); + if ( + /[0-9?]/.test(i) && + ((e = !0), this.pos + 1 < this.s.length) + ) { + const t = this.s[this.pos + 1]; + e = /[^0-9A-Za-z]/.test(t); + } + e + ? ((t = new a('#')), + (i = this.get()), + (t.value = + i >= '0' && i <= '9' ? parseInt(i) : '?')) + : (t = new a('literal', '#')); + } + } else + '~' === this.peek() + ? (this.get(), (t = new a('command', 'space'))) + : '$' === this.peek() + ? (this.get(), + '$' === this.peek() + ? (this.get(), (t = new a('$$'))) + : (t = new a('$'))) + : (t = new a('literal', this.get())); + return t; + } + } + var n = function(t) { + const e = [], + i = t.toString().split(/\r?\n/); + let s = '', + a = ''; + for (const t of i) { + (s += a), (a = ' '); + const e = t.match(/((?:\\%)|[^%])*/); + e && (s += e[0]); + } + const n = new o(s); + for (; !n.end(); ) { + const t = n.makeToken(); + t && e.push(t); + } + return e; + }, + r = { + '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], + 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+ 64: [0, 0.69444, 0, 0], + 65: [0, 0.69444, 0, 0], + 66: [0, 0.69444, 0, 0], + 67: [0, 0.69444, 0, 0], + 68: [0, 0.69444, 0, 0], + 69: [0, 0.69444, 0, 0], + 70: [0, 0.69444, 0, 0], + 71: [0, 0.69444, 0, 0], + 72: [0, 0.69444, 0, 0], + 73: [0, 0.69444, 0, 0], + 74: [0, 0.69444, 0, 0], + 75: [0, 0.69444, 0, 0], + 76: [0, 0.69444, 0, 0], + 77: [0, 0.69444, 0, 0], + 78: [0, 0.69444, 0, 0], + 79: [0, 0.69444, 0, 0], + 80: [0, 0.69444, 0, 0], + 81: [0.125, 0.69444, 0, 0], + 82: [0, 0.69444, 0, 0], + 83: [0, 0.69444, 0, 0], + 84: [0, 0.69444, 0, 0], + 85: [0, 0.69444, 0, 0], + 86: [0, 0.69444, 0.01389, 0], + 87: [0, 0.69444, 0.01389, 0], + 88: [0, 0.69444, 0, 0], + 89: [0, 0.69444, 0.025, 0], + 90: [0, 0.69444, 0, 0], + 91: [0.25, 0.75, 0, 0], + 93: [0.25, 0.75, 0, 0], + 94: [0, 0.69444, 0, 0], + 95: [0.35, 0.09444, 0.02778, 0], + 97: [0, 0.44444, 0, 0], + 98: [0, 0.69444, 0, 0], + 99: [0, 0.44444, 0, 0], + 100: [0, 0.69444, 0, 0], + 101: [0, 0.44444, 0, 0], + 102: [0, 0.69444, 0.06944, 0], + 103: [0.19444, 0.44444, 0.01389, 0], + 104: [0, 0.69444, 0, 0], + 105: [0, 0.67937, 0, 0], + 106: [0.19444, 0.67937, 0, 0], + 107: [0, 0.69444, 0, 0], + 108: [0, 0.69444, 0, 0], + 109: [0, 0.44444, 0, 0], + 110: [0, 0.44444, 0, 0], + 111: [0, 0.44444, 0, 0], + 112: [0.19444, 0.44444, 0, 0], + 113: [0.19444, 0.44444, 0, 0], + 114: [0, 0.44444, 0.01389, 0], + 115: [0, 0.44444, 0, 0], + 116: [0, 0.57143, 0, 0], + 117: [0, 0.44444, 0, 0], + 118: [0, 0.44444, 0.01389, 0], + 119: [0, 0.44444, 0.01389, 0], + 120: [0, 0.44444, 0, 0], + 121: [0.19444, 0.44444, 0.01389, 0], + 122: [0, 0.44444, 0, 0], + 126: [0.35, 0.32659, 0, 0], + 305: [0, 0.44444, 0, 0], + 567: [0.19444, 0.44444, 0, 0], + 768: [0, 0.69444, 0, 0], + 769: [0, 0.69444, 0, 0], + 770: [0, 0.69444, 0, 0], + 771: [0, 0.67659, 0, 0], + 772: [0, 0.60889, 0, 0], + 774: [0, 0.69444, 0, 0], + 775: [0, 0.67937, 0, 0], + 776: [0, 0.67937, 0, 0], + 778: [0, 0.69444, 0, 0], + 779: [0, 0.69444, 0, 0], + 780: [0, 0.63194, 0, 0], + 915: [0, 0.69444, 0, 0], + 916: [0, 0.69444, 0, 0], + 920: [0, 0.69444, 0, 0], + 923: [0, 0.69444, 0, 0], + 926: [0, 0.69444, 0, 0], + 928: [0, 0.69444, 0, 0], + 931: [0, 0.69444, 0, 0], + 933: [0, 0.69444, 0, 0], + 934: [0, 0.69444, 0, 0], + 936: [0, 0.69444, 0, 0], + 937: [0, 0.69444, 0, 0], + 8211: [0, 0.44444, 0.02778, 0], + 8212: [0, 0.44444, 0.02778, 0], + 8216: [0, 0.69444, 0, 0], + 8217: [0, 0.69444, 0, 0], + 8220: [0, 0.69444, 0, 0], + 8221: [0, 0.69444, 0, 0], + }, + 'Script-Regular': { + 65: [0, 0.7, 0.22925, 0], + 66: [0, 0.7, 0.04087, 0], + 67: [0, 0.7, 0.1689, 0], + 68: [0, 0.7, 0.09371, 0], + 69: [0, 0.7, 0.18583, 0], + 70: [0, 0.7, 0.13634, 0], + 71: [0, 0.7, 0.17322, 0], + 72: [0, 0.7, 0.29694, 0], + 73: [0, 0.7, 0.19189, 0], + 74: [0.27778, 0.7, 0.19189, 0], + 75: [0, 0.7, 0.31259, 0], + 76: [0, 0.7, 0.19189, 0], + 77: [0, 0.7, 0.15981, 0], + 78: [0, 0.7, 0.3525, 0], + 79: [0, 0.7, 0.08078, 0], + 80: [0, 0.7, 0.08078, 0], + 81: [0, 0.7, 0.03305, 0], + 82: [0, 0.7, 0.06259, 0], + 83: [0, 0.7, 0.19189, 0], + 84: [0, 0.7, 0.29087, 0], + 85: [0, 0.7, 0.25815, 0], + 86: [0, 0.7, 0.27523, 0], + 87: [0, 0.7, 0.27523, 0], + 88: [0, 0.7, 0.26006, 0], + 89: [0, 0.7, 0.2939, 0], + 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: [-99e-5, 0.601, 0, 0], + 8593: [1e-5, 0.6, 0, 0], + 8595: [1e-5, 0.6, 0, 0], + 8657: [1e-5, 0.6, 0, 0], + 8659: [1e-5, 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: [-99e-5, 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-5, 0.6, 0, 0], + 9117: [0.64502, 1.155, 0, 0], + 9118: [0.64502, 1.155, 0, 0], + 9119: [1e-5, 0.6, 0, 0], + 9120: [0.64502, 1.155, 0, 0], + 9121: [0.64502, 1.155, 0, 0], + 9122: [-99e-5, 0.601, 0, 0], + 9123: [0.64502, 1.155, 0, 0], + 9124: [0.64502, 1.155, 0, 0], + 9125: [-99e-5, 0.601, 0, 0], + 9126: [0.64502, 1.155, 0, 0], + 9127: [1e-5, 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-5, 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], + }, + }; + const l = /[\u3040-\u309F]|[\u30A0-\u30FF]|[\u4E00-\u9FAF]|[\uAC00-\uD7AF]/, + c = { + slant: [0.25, 0.25, 0.25], + space: [0, 0, 0], + stretch: [0, 0, 0], + shrink: [0, 0, 0], + xHeight: [0.431, 0.431, 0.431], + quad: [1, 1.171, 1.472], + extraSpace: [0, 0, 0], + num1: [0.677, 0.732, 0.925], + num2: [0.394, 0.384, 0.387], + num3: [0.444, 0.471, 0.504], + denom1: [0.686, 0.752, 1.025], + denom2: [0.345, 0.344, 0.532], + sup1: [0.413, 0.503, 0.504], + sup2: [0.363, 0.431, 0.404], + sup3: [0.289, 0.286, 0.294], + sub1: [0.15, 0.143, 0.2], + sub2: [0.247, 0.286, 0.4], + supDrop: [0.386, 0.353, 0.494], + subDrop: [0.05, 0.071, 0.1], + delim1: [2.39, 1.7, 1.98], + delim2: [1.01, 1.157, 1.42], + axisHeight: [0.25, 0.25, 0.25], + }, + h = { + defaultRuleThickness: 0.04, + bigOpSpacing1: 0.111, + bigOpSpacing2: 0.166, + bigOpSpacing3: 0.2, + bigOpSpacing4: 0.6, + bigOpSpacing5: 0.1, + ptPerEm: 10, + pxPerEm: 40 / 3, + doubleRuleSep: 0.2, + arraycolsep: 0.5, + baselineskip: 1.2, + arrayrulewidth: 0.04, + fboxsep: 0.3, + fboxrule: 0.04, + }, + d = { + ' ': ' ', + '​': ' ', + Å: 'A', + Ç: 'C', + Ð: 'D', + Þ: 'o', + å: 'a', + ç: 'c', + ð: 'd', + þ: 'o', + 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', + }; + function p(t, e, i) { + if ('string' == typeof t) { + const i = t.match(/([-+]?[0-9.]*)\s*([a-zA-Z]+)/); + i + ? ((t = parseFloat(i[1])), (e = i[2].toLowerCase())) + : (t = parseFloat(t)); + } + const s = + { + pt: 1, + mm: 7227 / 2540, + cm: 7227 / 254, + ex: 35271 / 8192, + px: 0.75, + em: h.ptPerEm, + bp: 1.00375, + dd: 1238 / 1157, + pc: 12, + in: 72.27, + mu: 10 / 18, + }[e] || 1; + if (isFinite(i)) { + const e = Math.pow(10, i); + return Math.round((t / h.ptPerEm) * s * e) / e; + } + return (t / h.ptPerEm) * s; + } + var m = { + toEm: p, + toPx: function(t, e) { + return p(t, e) * (4 / 3) * h.ptPerEm; + }, + METRICS: h, + SIGMAS: c, + getCharacterMetrics: function(t, e) { + const i = + { + cal: 'Caligraphic-Regular', + ams: 'AMS-Regular', + frak: 'Fraktur-Regular', + bb: 'AMS-Regular', + scr: 'Script-Regular', + cmr: 'Main-Regular', + cmtt: 'Typewriter-Regular', + cmss: 'SansSerif-Regular', + }[e] || e; + let s = t.charCodeAt(0); + t[0] in d + ? (s = d[t[0]].charCodeAt(0)) + : l.test(t[0]) && (s = 77); + const a = r[i][s]; + return a + ? a + ? { + depth: a[0], + height: a[1], + italic: a[2], + skew: a[3], + } + : null + : { + defaultMetrics: !0, + depth: 0.2, + height: 0.7, + italic: 0, + skew: 0, + }; + }, + }; + const u = [{}, {}, {}]; + let f; + for (const t in c) + if (Object.prototype.hasOwnProperty.call(c, t)) + for (f = 0; f < 3; f++) u[f][t] = c[t][f]; + for (f = 0; f < 3; f++) u[f].emPerEx = c.xHeight[f] / c.quad[f]; + class g { + constructor(t, e, i, s) { + (this.id = t), + (this.size = e), + (this.cramped = s), + (this.sizeMultiplier = i), + (this.metrics = u[e > 0 ? e - 1 : 0]); + } + sup() { + return y[k[this.id]]; + } + sub() { + return y[v[this.id]]; + } + fracNum() { + return y[w[this.id]]; + } + fracDen() { + return y[S[this.id]]; + } + cramp() { + return y[A[this.id]]; + } + cls() { + return b[this.size]; + } + adjustTo(t) { + let e = x[this.size][t.size]; + return e.length > 0 && (e = ' ' + e), e; + } + isTight() { + return this.size >= 2; + } + } + const y = [ + new g(0, 0, 1, !1), + new g(1, 0, 1, !0), + new g(2, 1, 1, !1), + new g(3, 1, 1, !0), + new g(4, 2, 0.7, !1), + new g(5, 2, 0.7, !0), + new g(6, 3, 0.5, !1), + new g(7, 3, 0.5, !0), + ], + b = [ + 'displaystyle textstyle', + 'textstyle', + 'scriptstyle', + 'scriptscriptstyle', + ], + x = [ + [ + '', + '', + 'reset-textstyle scriptstyle', + 'reset-textstyle scriptscriptstyle', + ], + [ + 'reset-textstyle displaystyle textstyle', + '', + 'reset-textstyle scriptstyle', + 'reset-textstyle scriptscriptstyle', + ], + [ + 'reset-scriptstyle textstyle displaystyle', + 'reset-scriptstyle textstyle', + '', + 'reset-scriptstyle scriptscriptstyle', + ], + [ + 'reset-scriptscriptstyle textstyle displaystyle', + 'reset-scriptscriptstyle textstyle', + 'reset-scriptscriptstyle scriptstyle', + '', + ], + ], + k = [4, 5, 4, 5, 6, 7, 6, 7], + v = [5, 5, 5, 5, 7, 7, 7, 7], + w = [2, 3, 4, 5, 6, 7, 6, 7], + S = [3, 3, 5, 5, 7, 7, 7, 7], + A = [1, 1, 3, 3, 5, 5, 7, 7]; + var M = { + DISPLAY: y[0], + TEXT: y[2], + SCRIPT: y[4], + SCRIPTSCRIPT: y[6], + toMathstyle: function(t) { + return t + ? 'object' == typeof t + ? t + : { + displaystyle: y[0], + textstyle: y[2], + scriptstyle: y[4], + scriptscriptstyle: y[6], + }[t] + : t; + }, + }; + class C { + constructor(t) { + (this.macros = t.macros || {}), + (this.generateID = !!t.generateID && t.generateID), + (this.mathstyle = M.toMathstyle( + t.mathstyle || 'displaystyle' + )), + (this.size = t.size || 'size5'), + (this.parentMathstyle = + t.parentMathstyle || this.mathstyle), + (this.parentSize = t.parentSize || this.size), + (this.opacity = t.opacity); + } + clone(t) { + const e = new C(this); + return ( + (e.parentMathstyle = this.mathstyle), + (e.parentSize = this.size), + (e.macros = this.macros), + t && + (('auto' !== t.mathstyle && t.mathstyle) || + delete t.mathstyle, + Object.assign(e, t), + 'string' == typeof t.mathstyle && + (e.mathstyle = M.toMathstyle(t.mathstyle))), + e + ); + } + setMathstyle(t) { + t && 'auto' !== t && (this.mathstyle = M.toMathstyle(t)); + } + cramp() { + return this.clone({ mathstyle: this.mathstyle.cramp() }); + } + sup() { + return this.clone({ mathstyle: this.mathstyle.sup() }); + } + sub() { + return this.clone({ mathstyle: this.mathstyle.sup() }); + } + } + var _ = C; + function T(t) { + let e = ''; + if ('number' == typeof t) e += Math.floor(100 * t) / 100; + else if ('string' == typeof t) e += t; + else if (Array.isArray(t)) for (const i of t) e += T(i); + else t && (e += t.toString()); + return e; + } + class L { + constructor(t, e) { + (this.classes = e || ''), + Array.isArray(t) + ? (this.children = [].concat.apply([], t)) + : 'string' == typeof t + ? (this.body = t) + : t && 'object' == typeof t && (this.children = [t]), + (this.style = null), + this.updateDimensions(); + } + updateDimensions() { + let t = 0, + e = 0, + i = 1; + this.children && + this.children.forEach(s => { + s.height > t && (t = s.height), + s.depth > e && (e = s.depth), + s.maxFontSize > i && (i = s.maxFontSize); + }), + (this.height = t), + (this.depth = e), + (this.maxFontSize = i); + } + selected(t) { + t && + !/ML__selected/.test(this.classes) && + (this.classes.length > 0 && (this.classes += ' '), + (this.classes += 'ML__selected')), + !t && + /ML__selected/.test(this.classes) && + (this.classes = this.classes.replace( + 'ML__selected', + '' + )), + this.children && this.children.forEach(e => e.selected(t)); + } + applyStyle(t) { + if (!t) return; + if ( + (t.color && + ('none' !== t.color + ? this.setStyle('color', t.color) + : this.setStyle('color', '')), + t.backgroundColor && + ('none' !== t.backgroundColor + ? this.setStyle( + 'background-color', + t.backgroundColor + ) + : this.setStyle('background-color', '')), + t.cssClass && (this.classes += ' ' + t.cssClass), + !this.body) + ) + return; + let e = t.fontFamily; + 'math' === e && 'n' === t.fontShape && (e = 'cmr'); + let i = 'Main-Regular'; + if ( + (e && + (i = (function(t, e) { + if ( + 'string' != typeof t || + t.length > 1 || + '​' === t + ) + return K[e]; + if ('bb' === e || 'scr' === e) { + if (!/^[A-Z ]$/.test(t)) return null; + } else if ('cal' === e) { + if (!/^[0-9A-Z ]$/.test(t)) return null; + } else if ('frak' === e) { + if ( + !/^[0-9A-Za-z ]$|^[!"#$%&'()*+,\-./:;=?[]^’‘]$/.test( + t + ) + ) + return null; + } else if ( + ('cmtt' === e || 'cmss' === e) && + !/^[0-9A-Za-z ]$|^[!"&'()*+,\-./:;=?@[]^_~\u0131\u0237\u0393\u0394\u0398\u039b\u039e\u03A0\u03A3\u03A5\u03A8\u03a9’‘]$/.test( + t + ) + ) + return null; + return K[e]; + })(this.body, e)), + t.fontShape && + (this.classes += + ' ' + + ({ + it: 'ML__it', + sl: 'ML__shape_sl', + sc: 'ML__shape_sc', + ol: 'ML__shape_ol', + }[t.fontShape] || '')), + t.fontSeries) + ) { + const e = t.fontSeries.match(/(.?[lbm])?(.?[cx])?/); + e && + ((this.classes += + ' ' + + ({ + ul: 'ML__series_ul', + el: 'ML__series_el', + l: 'ML__series_l', + sl: 'ML__series_sl', + m: '', + sb: 'ML__series_sb', + b: 'ML__bold', + eb: 'ML__series_eb', + ub: 'ML__series_ub', + }[e[1] || ''] || '')), + (this.classes += + ' ' + + ({ + uc: 'ML__series_uc', + ec: 'ML__series_ec', + c: 'ML__series_c', + sc: 'ML__series_sc', + n: '', + sx: 'ML__series_sx', + x: 'ML__series_x', + ex: 'ML__series_ex', + ux: 'ML__series_ux', + }[e[2] || ''] || ''))); + } + if ( + (N[e] + ? (this.classes += ' ' + N[e]) + : e && this.setStyle('font-family', e), + this.body && this.body.length > 0 && i) + ) { + (this.height = 0), + (this.depth = 0), + (this.maxFontSize = + { + size1: 0.5, + size2: 0.7, + size3: 0.8, + size4: 0.9, + size5: 1, + size6: 1.2, + size7: 1.44, + size8: 1.73, + size9: 2.07, + size10: 2.49, + }[t.fontSize] || 1), + (this.skew = 0), + (this.italic = 0); + for (let t = 0; t < this.body.length; t++) { + const e = m.getCharacterMetrics(this.body.charAt(t), i); + e && + ((this.height = Math.max(this.height, e.height)), + (this.depth = Math.max(this.depth, e.depth)), + (this.skew = e.skew), + (this.italic = e.italic)); + } + } + } + setStyle(t, ...e) { + const i = T(e); + i.length > 0 && + (this.style || (this.style = {}), (this.style[t] = i)); + } + setTop(t) { + t && + 0 !== t && + (this.style || (this.style = {}), + (this.style.top = T(t) + 'em'), + (this.height -= t), + (this.depth += t)); + } + setLeft(t) { + t && + 0 !== t && + (this.style || (this.style = {}), + (this.style['margin-left'] = T(t) + 'em')); + } + setRight(t) { + t && + 0 !== t && + (this.style || (this.style = {}), + (this.style['margin-right'] = T(t) + 'em')); + } + setWidth(t) { + t && + 0 !== t && + (this.style || (this.style = {}), + (this.style.width = T(t) + 'em')); + } + addMarginRight(t) { + if (t && 0 !== t) { + if ( + !this.style && + !/qquad|quad|enspace|thickspace|mediumspace|thinspace|negativethinspace/.test( + this.classes + ) + ) { + const e = { + 2: 'qquad', + 1: 'quad', + '.5': 'enspace', + 0.277778: 'thickspace', + 0.222222: 'mediumspace', + 0.166667: 'thinspace', + '-0.166667': 'negativethinspace', + }[t.toString()]; + if (e) return void (this.classes += ' rspace ' + e); + } + this.style || (this.style = {}); + const e = parseFloat(this.style['margin-right'] || '0'); + this.style['margin-right'] = T(e + t) + 'em'; + } + } + toMarkup(t, e) { + (t = t || 0), (e = e || 1); + let i = '', + s = this.body || ''; + if (this.children) { + let t = 'none'; + for (const i of this.children) { + let a = 0; + if (t) { + let s = i.type; + s && + ('textord' === s && (s = 'mord'), + 'first' === s && (s = 'none'), + (a = i.isTight + ? E[t + '+' + s] || 0 + : F[t + '+' + s] || 0), + (a = Math.floor(e * a))); + } + (s += i.toMarkup(a, e)), (t = q(i)); + } + } + if ( + ('​' !== s && s) || + (this.classes && 'ML__selected' !== this.classes) + ) { + if ( + ((i = ' 1 + ? e + .filter(function(t, e, i) { + return ( + t.length > 0 && i.indexOf(t) === e + ); + }) + .join(' ') + : e[0]), + a.length > 0 && (i += ' class="' + a + '"'), + t && + (this.style && this.style['margin-left'] + ? (this.style['margin-left'] = + T( + parseFloat( + this.style['margin-left'] + ) + + t / 18 + ) + 'em') + : t < 0 && z[-t] + ? (s = z[-t] + s) + : D[t] + ? (s = D[t] + s) + : (this.style || (this.style = {}), + (this.style['margin-left'] = + T(t / 18) + 'em'))), + this.style) + ) { + let t = ''; + const e = /ML__selected/.test(this.classes); + for (const i in this.style) + Object.prototype.hasOwnProperty.call( + this.style, + i + ) && + (('background-color' === i && e) || + (t += i + ':' + this.style[i] + ';')); + t.length > 0 && (i += ' style="' + t + '"'); + } + (i += '>'), + this.svgOverlay + ? ((i += ''), + (i += s), + (i += ''), + (i += ' 0, + i = t.children && t.children.length > 0; + if (e || i) return !1; + if ( + (this.style ? this.style.length : 0) !== + (t.style ? t.style.length : 0) + ) + return !1; + const s = this.classes + .trim() + .replace(/\s+/g, ' ') + .split(' '), + a = t.classes + .trim() + .replace(/\s+/g, ' ') + .split(' '); + if (s.length !== a.length) return !1; + s.sort(), a.sort(); + for (let t = 0; t < s.length; t++) { + if ('vertical-separator' === s[t]) return !1; + if (s[t] !== a[t]) return !1; + } + if (this.style && t.style) + for (const e in this.style) + if ( + Object.prototype.hasOwnProperty.call( + this.style, + e + ) && + Object.prototype.hasOwnProperty.call(t.style, e) && + this.style[e] !== t.style[e] + ) + return !1; + return ( + (this.body += t.body), + (this.height = Math.max(this.height, t.height)), + (this.depth = Math.max(this.depth, t.depth)), + (this.maxFontSize = Math.max( + this.maxFontSize, + t.maxFontSize + )), + (this.italic = t.italic), + !0 + ); + } + } + const F = { + '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, + }, + D = ['​', ' ', '  ', ' ', ' ', '  ', ' ', '', '', ' '], + z = ['', ' ⁣', '', ' ⁣', ' ⁣', ' ⁣'], + E = { + 'mord+mop': 3, + 'mop+mord': 3, + 'mop+mop': 3, + 'mclose+mop': 3, + 'minner+mop': 3, + }; + function q(t) { + const e = t.type; + return 'first' === e ? 'none' : 'textord' === e ? 'mord' : e; + } + function P(t) { + return t + ? Array.isArray(t) + ? t.reduce((t, e) => Math.max(t, e.height), 0) + : t.height + : 0; + } + function I(t) { + return t + ? Array.isArray(t) + ? t.reduce((t, e) => Math.max(t, e.depth), 0) + : t.depth + : 0; + } + function B(t, e) { + if (Array.isArray(t)) { + const i = []; + for (const e of t) e && i.push(e); + if (1 === i.length) return B(i[0], e); + } + return new L(t, e); + } + function O(t, e, i) { + const s = B(e, i); + return (s.type = t), s; + } + function R(t, e) { + if (!e || 0 === e.length) { + if (t instanceof L) return t; + if (Array.isArray(t) && 1 === t.length) return t[0]; + } + const i = new L(t, e); + let s = 1; + return ( + (s = + t instanceof L + ? t.maxFontSize + : t.reduce((t, e) => Math.max(t, e.maxFontSize), 0)), + (i.height *= s), + (i.depth *= s), + i + ); + } + const K = { + 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', + }, + N = { + 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', + }; + var $ = { + coalesce: function t(e) { + if (!e || 0 === e.length) return []; + e[0].children = t(e[0].children); + const i = [e[0]]; + for (let s = 1; s < e.length; s++) + i[i.length - 1].tryCoalesceWith(e[s]) || + ((e[s].children = t(e[s].children)), i.push(e[s])); + return i; + }, + makeSpan: B, + makeOp: function(t, e) { + return O('mop', t, e); + }, + makeOrd: function(t, e) { + return O('mord', t, e); + }, + makeRel: function(t, e) { + return O('mrel', t, e); + }, + makeClose: function(t, e) { + return O('mclose', t, e); + }, + makeOpen: function(t, e) { + return O('mopen', t, e); + }, + makeInner: function(t, e) { + return O('minner', t, e); + }, + makePunct: function(t, e) { + return O('mpunct', t, e); + }, + makeSpanOfType: O, + makeSymbol: function(t, e, i) { + const s = new L(e, i), + a = m.getCharacterMetrics(e, t); + return ( + (s.height = a.height), + (s.depth = a.depth), + (s.skew = a.skew), + (s.italic = a.italic), + s.setRight(s.italic), + s + ); + }, + makeVlist: function(t, e, i, s) { + let a = 0, + o = 0; + (i = i || 'shift'), (s = s || 0); + for (let t = 0; t < e.length; t++) + Array.isArray(e[t]) && + (1 === e[t].length + ? (e[t] = e[t][0]) + : (e[t] = B(e[t]))); + if ('shift' === i) a = -e[0].depth - s; + else if ('bottom' === i) a = -s; + else if ('top' === i) { + let t = s; + for (const i of e) + t -= i instanceof L ? i.height + i.depth : i; + a = t; + } else if ('individualShift' === i) { + const t = e; + (e = [t[0]]), (a = -t[1] - t[0].depth), (o = a); + for (let i = 2; i < t.length; i += 2) { + const s = -t[i + 1] - o - t[i].depth; + o += s; + const a = s - (t[i - 2].height + t[i - 2].depth); + e.push(a), e.push(t[i]); + } + } + let n = 1; + for (const t of e) + t instanceof L && (n = Math.max(n, t.maxFontSize)); + const r = (function(t, e) { + const i = e ? e / t.mathstyle.sizeMultiplier : 0, + s = new L('​'); + return ( + 1 !== i && + (s.setStyle('font-size', i, i > 0 ? 'em' : ''), + (s.attributes = { 'aria-hidden': !0 })), + 'size5' !== t.size + ? new L( + s, + 'fontsize-ensurer reset-' + + t.size + + ' size5' + ) + : 0 !== i + ? s + : null + ); + })(t, n), + l = []; + o = a; + for (const t of e) + if ('number' == typeof t) o += t; + else { + const e = B([r, t]); + e.setTop(-t.depth - o), + l.push(e), + (o += t.height + t.depth); + } + const c = B(l, 'vlist'); + return ( + (c.depth = Math.max(a, I(c) || 0)), + (c.height = Math.max(-o, P(c) || 0)), + c + ); + }, + makeHlist: R, + makeStyleWrap: function(t, e, i, s, a) { + a = a || ''; + const o = R(e, (a += ' style-wrap ') + i.adjustTo(s)); + o.type = t; + const n = s.sizeMultiplier / i.sizeMultiplier; + return ( + (o.height *= n), + (o.depth *= n), + (o.maxFontSize = s.sizeMultiplier), + o + ); + }, + makeSVG: function(t, e, i) { + return (t.svgOverlay = e), (t.svgStyle = i), t; + }, + height: P, + depth: I, + skew: function(t) { + if (!t) return 0; + if (Array.isArray(t)) { + let e = 0; + for (const i of t) e += i.skew || 0; + return e; + } + return t.skew; + }, + italic: function(t) { + return t + ? Array.isArray(t) + ? t[t.length - 1].italic + : t.italic + : 0; + }, + }; + let W = ''; + const H = {}, + V = {}, + U = {}, + j = 'CRYPTIC', + G = 'COMMON', + Z = 'SUPERCOMMON', + X = { + CRYPTIC: 0, + ARCANE: 200, + VERY_RARE: 600, + RARE: 1200, + UNCOMMON: 2e3, + COMMON: 3e3, + SUPERCOMMON: 4e3, + }; + function J(t, ...e) { + const i = 'string' == typeof t ? X[t] : t; + for (const t of e) + H[t] && (H[t].frequency = i), + V[t] && + ((V[t] = Object.assign({}, V[t])), + (V[t].frequency = i)); + } + function Y(t, e, i, s, a) { + e && /^(ams|cmr|bb|cal|frak|scr)$/.test(e), + 'string' == typeof a && (a = X[a]), + (H[t] = { + type: i === rt ? lt : i, + baseFontFamily: e, + value: s, + category: W, + frequency: a, + }); + } + function Q(t, e) { + for (let i = t; i <= e; i++) { + const t = String.fromCodePoint(i); + Y(t, '', 'mord', t); + } + } + const tt = { + 8739: '|', + 183: '\\cdot', + 188: '\\frac{1}{4}', + 189: '\\frac{1}{2}', + 190: '\\frac{3}{4}', + 8304: '^{0}', + 8305: '^{i}', + 185: '^{1}', + 178: '^{2}', + 179: '^{3}', + 8308: '^{4}', + 8309: '^{5}', + 8310: '^{6}', + 8311: '^{7}', + 8312: '^{8}', + 8313: '^{9}', + 8314: '^{+}', + 8315: '^{-}', + 8316: '^{=}', + 8319: '^{n}', + 8320: '_{0}', + 8321: '_{1}', + 8322: '_{2}', + 8323: '_{3}', + 8324: '_{4}', + 8325: '_{5}', + 8326: '_{6}', + 8327: '_{7}', + 8328: '_{8}', + 8329: '_{9}', + 8330: '_{+}', + 8331: '_{-}', + 8332: '_{=}', + 8336: '_{a}', + 8337: '_{e}', + 8338: '_{o}', + 8339: '_{x}', + 8242: '\\prime', + 8243: '\\doubleprime', + 8736: '\\angle', + 8450: '\\C', + 8469: '\\N', + 8473: '\\P', + 8474: '\\Q', + 8477: '\\R', + 8484: '\\Z', + }; + function et(t, e) { + const i = String.fromCodePoint(e); + if ('math' === t && tt[i]) return tt[i]; + if (e > 32 && e < 127) return i; + let s = ''; + if ('math' === t) { + for (const t in H) + if ( + Object.prototype.hasOwnProperty.call(H, t) && + H[t].value === i + ) { + s = t; + break; + } + } else + for (const t in vt) + if ( + Object.prototype.hasOwnProperty.call(vt, t) && + vt[t] === i + ) { + s = t; + break; + } + return s || i; + } + const it = { + 119893: 8462, + 119965: 8492, + 119968: 8496, + 119969: 8497, + 119971: 8459, + 119972: 8464, + 119975: 8466, + 119976: 8499, + 119981: 8475, + 119994: 8495, + 119996: 8458, + 120004: 8500, + 120070: 8493, + 120075: 8460, + 120076: 8465, + 120085: 8476, + 120093: 8488, + 120122: 8450, + 120127: 8461, + 120133: 8469, + 120135: 8473, + 120136: 8474, + 120137: 8477, + 120145: 8484, + }, + st = [ + { start: 119808, len: 26, offset: 65, style: 'bold' }, + { start: 119834, len: 26, offset: 97, style: 'bold' }, + { start: 119860, len: 26, offset: 65, style: 'italic' }, + { start: 119886, len: 26, offset: 97, style: 'italic' }, + { start: 119912, len: 26, offset: 65, style: 'bolditalic' }, + { start: 119938, len: 26, offset: 97, style: 'bolditalic' }, + { start: 119964, len: 26, offset: 65, variant: 'script' }, + { start: 119990, len: 26, offset: 97, variant: 'script' }, + { + start: 120016, + len: 26, + offset: 65, + variant: 'script', + style: 'bold', + }, + { + start: 120042, + len: 26, + offset: 97, + variant: 'script', + style: 'bold', + }, + { start: 120068, len: 26, offset: 65, variant: 'fraktur' }, + { start: 120094, len: 26, offset: 97, variant: 'fraktur' }, + { + start: 120172, + len: 26, + offset: 65, + variant: 'fraktur', + style: 'bold', + }, + { + start: 120198, + len: 26, + offset: 97, + variant: 'fraktur', + style: 'bold', + }, + { + start: 120120, + len: 26, + offset: 65, + variant: 'double-struck', + }, + { + start: 120146, + len: 26, + offset: 97, + variant: 'double-struck', + }, + { start: 120224, len: 26, offset: 65, variant: 'sans-serif' }, + { start: 120250, len: 26, offset: 97, variant: 'sans-serif' }, + { + start: 120276, + len: 26, + offset: 65, + variant: 'sans-serif', + style: 'bold', + }, + { + start: 120302, + len: 26, + offset: 97, + variant: 'sans-serif', + style: 'bold', + }, + { + start: 120328, + len: 26, + offset: 65, + variant: 'sans-serif', + style: 'italic', + }, + { + start: 120354, + len: 26, + offset: 97, + variant: 'sans-serif', + style: 'italic', + }, + { + start: 120380, + len: 26, + offset: 65, + variant: 'sans-serif', + style: 'bolditalic', + }, + { + start: 120406, + len: 26, + offset: 97, + variant: 'sans-serif', + style: 'bolditalic', + }, + { start: 120432, len: 26, offset: 65, variant: 'monospace' }, + { start: 120458, len: 26, offset: 97, variant: 'monospace' }, + { start: 120488, len: 25, offset: 913, style: 'bold' }, + { start: 120514, len: 25, offset: 945, style: 'bold' }, + { start: 120546, len: 25, offset: 913, style: 'italic' }, + { start: 120572, len: 25, offset: 945, style: 'italic' }, + { start: 120604, len: 25, offset: 913, style: 'bolditalic' }, + { start: 120630, len: 25, offset: 945, style: 'bolditalic' }, + { + start: 120662, + len: 25, + offset: 913, + variant: 'sans-serif', + style: 'bold', + }, + { + start: 120688, + len: 25, + offset: 945, + variant: 'sans-serif', + style: 'bold', + }, + { + start: 120720, + len: 25, + offset: 913, + variant: 'sans-serif', + style: 'bolditalic', + }, + { + start: 120746, + len: 25, + offset: 945, + variant: 'sans-serif', + style: 'bolditalic', + }, + { + start: 120782, + len: 10, + offset: 48, + variant: '', + style: 'bold', + }, + { + start: 120792, + len: 10, + offset: 48, + variant: 'double-struck', + }, + { start: 120803, len: 10, offset: 48, variant: 'sans-serif' }, + { + start: 120812, + len: 10, + offset: 48, + variant: 'sans-serif', + style: 'bold', + }, + { start: 120822, len: 10, offset: 48, variant: 'monospace' }, + ]; + function at(t) { + let e = t; + if ( + ('string' == typeof t && (e = t.codePointAt(0)), + (e < 119808 || e > 120831) && (e < 8448 || e > 8527)) + ) + return { char: t }; + for (const t in it) + if ( + Object.prototype.hasOwnProperty.call(it, t) && + it[t] === e + ) { + e = t; + break; + } + for (let t = 0; t < st.length; t++) + if (e >= st[t].start && e < st[t].start + st[t].len) + return { + char: String.fromCodePoint( + e - st[t].start + st[t].offset + ), + variant: st[t].variant, + style: st[t].style, + }; + return { char: t }; + } + function ot(t, e) { + if ('text' === t) return String.fromCodePoint(e); + let i; + if (tt[e]) return tt[e]; + const s = at(e); + return s.style || s.variant + ? ((i = s.char), + s.variant && (i = '\\' + s.variant + '{' + i + '}'), + 'bold' === s.style + ? (i = '\\mathbf{' + i + '}') + : 'italic' === s.style + ? (i = '\\mathit{' + i + '}') + : 'bolditalic' === s.style && + (i = '\\mathbf{\\mathit{' + i + '}}'), + '\\mathord{' + i + '}') + : et(t, e); + } + const nt = 'ams', + rt = 'mord', + lt = 'mord', + ct = 'mbin', + ht = 'mrel', + dt = 'mopen', + pt = 'mclose', + mt = 'spacing'; + function ut(t, e) { + let i = t.match(/=(.+)/), + s = '{}', + a = 'auto', + o = null; + return ( + i && (s = i[1]), + (i = t.match(/:([^=]+)/)), + i && (a = i[1].trim()), + (i = t.match(/^([^:=]+)/)), + i && (o = i[1].trim()), + { optional: e, type: a, defaultValue: s, placeholder: o } + ); + } + function ft(t) { + if (!t || 0 === t.length) return []; + let e = [], + i = t.split(']'); + if ('[' === i[0].charAt(0)) { + e.push(ut(i[0].slice(1), !0)); + for (let t = 1; t <= i.length; t++) e = e.concat(ft(i[t])); + } else if (((i = t.split('}')), '{' === i[0].charAt(0))) { + e.push(ut(i[0].slice(1), !1)); + for (let t = 1; t <= i.length; t++) e = e.concat(ft(i[t])); + } + return e; + } + function gt(t) { + return t.map(t => t.body).join(''); + } + function yt(t, e, i, s) { + 'string' == typeof t && (t = [t]), i || (i = {}); + const a = ft(e), + o = { + category: W, + params: a, + parser: s, + mathstyle: 'displaystyle', + tabular: i.tabular || !0, + colFormat: i.colFormat || [], + }; + for (const e of t) U[e] = o; + } + function bt(t, e, i, s) { + 'string' == typeof t && (t = [t]), i || (i = {}); + const a = { + category: W, + baseFontFamily: i.fontFamily, + params: ft(e), + allowedInText: !!i.allowedInText, + infix: !!i.infix, + parse: s, + }; + for (const e of t) V[e] = a; + } + (W = 'Environments'), + yt('math', '', { frequency: 0 }, function() { + return { mathstyle: 'textstyle' }; + }), + yt('displaymath', '', { frequency: 8 }, function() { + return { mathstyle: 'displaystyle' }; + }), + yt('array', '{columns:colspec}', { frequency: G }, function(t, e) { + return { colFormat: e[0], mathstyle: 'textstyle' }; + }), + yt('eqnarray', '', {}, function() { + return {}; + }), + yt('equation', '', {}, function() { + return { colFormat: [{ align: 'c' }] }; + }), + yt('subequations', '', {}, function() { + return { colFormat: [{ align: 'c' }] }; + }), + yt('multline', '', {}, function() { + return { + firstRowFormat: [{ align: 'l' }], + colFormat: [{ align: 'c' }], + lastRowFormat: [{ align: 'r' }], + }; + }), + yt(['align', 'aligned'], '', {}, function(t, e, i) { + let s = 0; + for (const t of i) s = Math.max(s, t.length); + const a = [ + { gap: 0 }, + { align: 'r' }, + { gap: 0 }, + { align: 'l' }, + ]; + let o = 2; + for (; o < s; ) + a.push({ gap: 1 }), + a.push({ align: 'r' }), + a.push({ gap: 0 }), + a.push({ align: 'l' }), + (o += 2); + return a.push({ gap: 0 }), { colFormat: a, jot: 0.3 }; + }), + yt('split', '', {}, function() { + return {}; + }), + yt(['gather', 'gathered'], '', {}, function() { + return { + colFormat: [{ gap: 0.25 }, { align: 'c' }, { gap: 0 }], + jot: 0.3, + }; + }), + yt( + [ + 'matrix', + 'pmatrix', + 'bmatrix', + 'Bmatrix', + 'vmatrix', + 'Vmatrix', + 'smallmatrix', + 'matrix*', + 'pmatrix*', + 'bmatrix*', + 'Bmatrix*', + 'vmatrix*', + 'Vmatrix*', + 'smallmatrix*', + ], + '[columns:colspec]', + {}, + function(t, e) { + const i = { mathstyle: 'textstyle' }; + switch (t) { + case 'pmatrix': + case 'pmatrix*': + (i.lFence = '('), (i.rFence = ')'); + break; + case 'bmatrix': + case 'bmatrix*': + (i.lFence = '['), (i.rFence = ']'); + break; + case 'Bmatrix': + case 'Bmatrix*': + (i.lFence = '\\lbrace'), (i.rFence = '\\rbrace'); + break; + case 'vmatrix': + case 'vmatrix*': + (i.lFence = '\\vert'), (i.rFence = '\\vert'); + break; + case 'Vmatrix': + case 'Vmatrix*': + (i.lFence = '\\Vert'), (i.rFence = '\\Vert'); + break; + case 'smallmatrix': + case 'smallmatrix*': + i.mathstyle = 'scriptstyle'; + break; + case 'matrix': + case 'matrix*': + (i.lFence = '.'), (i.rFence = '.'); + } + return ( + (i.colFormat = e[0] || [ + { align: 'c' }, + { align: 'c' }, + { align: 'c' }, + { align: 'c' }, + { align: 'c' }, + { align: 'c' }, + { align: 'c' }, + { align: 'c' }, + { align: 'c' }, + { align: 'c' }, + ]), + i + ); + } + ), + yt('cases', '', {}, function() { + return { + arraystretch: 1.2, + lFence: '\\lbrace', + rFence: '.', + colFormat: [{ align: 'l' }, { gap: 1 }, { align: 'l' }], + }; + }), + yt('theorem', '', {}, function() { + return {}; + }), + yt('center', '', {}, function() { + return { colFormat: [{ align: 'c' }] }; + }), + (W = ''), + (function(t) { + for (let t = 0; t < '0123456789/@.'.length; t++) { + const e = '0123456789/@.'.charAt(t); + Y(e, '', lt, e); + } + })(), + Q(65, 90), + Q(97, 122), + (W = 'Trigonometry'), + bt( + [ + '\\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(t) { + return { + type: 'mop', + limits: 'nolimits', + symbol: !1, + isFunction: !0, + body: t.slice(1), + baseFontFamily: 'cmr', + }; + } + ), + J(Z, '\\cos', '\\sin', '\\tan'), + J( + 'UNCOMMON', + '\\arcsin', + '\\arccos', + '\\arctan', + '\\arctg', + '\\arcctg', + '\\arcsec', + '\\arccsc' + ), + J( + 'UNCOMMON', + '\\arsinh', + '\\arccosh', + '\\arctanh', + '\\arcsech', + '\\arccsch' + ), + J( + 'UNCOMMON', + '\\arg', + '\\ch', + '\\cosec', + '\\cosh', + '\\cot', + '\\cotg', + '\\coth', + '\\csc', + '\\ctg', + '\\cth', + '\\lg', + '\\lb', + '\\sec', + '\\sinh', + '\\sh', + '\\tanh', + '\\tg', + '\\th' + ), + (W = 'Functions'), + bt( + [ + '\\deg', + '\\dim', + '\\exp', + '\\hom', + '\\ker', + '\\lb', + '\\lg', + '\\ln', + '\\log', + ], + '', + null, + function(t) { + return { + type: 'mop', + limits: 'nolimits', + symbol: !1, + isFunction: !0, + body: t.slice(1), + baseFontFamily: 'cmr', + }; + } + ), + J(Z, '\\ln', '\\log', '\\exp'), + J(292, '\\hom'), + J(G, '\\dim'), + J(G, '\\ker', '\\deg'), + bt(['\\lim', '\\mod'], '', null, function(t) { + return { + type: 'mop', + limits: 'limits', + symbol: !1, + body: t.slice(1), + baseFontFamily: 'cmr', + }; + }), + bt(['\\det', '\\max', '\\min'], '', null, function(t) { + return { + type: 'mop', + limits: 'limits', + symbol: !1, + isFunction: !0, + body: t.slice(1), + baseFontFamily: 'cmr', + }; + }), + J(Z, '\\lim'), + J(G, '\\det'), + J(G, '\\mod'), + J(G, '\\min'), + J(G, '\\max'), + (W = 'Decoration'), + bt( + '\\rule', + '[raise:dimen]{width:dimen}{thickness:dimen}', + null, + function(t, e) { + return { + type: 'rule', + shift: e[0], + width: e[1], + height: e[2], + }; + } + ), + bt('\\color', '{:color}', { allowedInText: !0 }, (t, e) => ({ + color: e[0], + })), + bt( + '\\textcolor', + '{:color}{content:auto*}', + { allowedInText: !0 }, + (t, e) => ({ color: e[0] }) + ), + J(3, '\\textcolor'), + bt('\\overline', '{:auto}', null, function(t, e) { + return { + type: 'line', + position: 'overline', + skipBoundary: !0, + body: e[0], + }; + }), + J(G, '\\overline'), + bt('\\underline', '{:auto}', null, function(t, e) { + return { + type: 'line', + position: 'underline', + skipBoundary: !0, + body: e[0], + }; + }), + J(G, '\\underline'), + bt('\\overset', '{annotation:auto}{symbol:auto}', null, function( + t, + e + ) { + return { + type: 'overunder', + overscript: e[0], + skipBoundary: !0, + body: e[1], + }; + }), + J(G, '\\overset'), + bt('\\underset', '{annotation:auto}{symbol:auto}', null, function( + t, + e + ) { + return { + type: 'overunder', + underscript: e[0], + skipBoundary: !0, + body: e[1], + }; + }), + J(G, '\\underset'), + bt( + ['\\stackrel', '\\stackbin'], + '{annotation:auto}{symbol:auto}', + null, + function(t, e) { + return { + type: 'overunder', + overscript: e[0], + skipBoundary: !0, + body: e[1], + mathtype: '\\stackrel' === t ? 'mrel' : 'mbin', + }; + } + ), + J(G, '\\stackrel'), + J(0, '\\stackbin'), + bt('\\rlap', '{:auto}', null, function(t, e) { + return { + type: 'overlap', + align: 'right', + skipBoundary: !0, + body: e[0], + }; + }), + J(270, '\\rlap'), + bt('\\llap', '{:auto}', null, function(t, e) { + return { + type: 'overlap', + align: 'left', + skipBoundary: !0, + body: e[0], + }; + }), + J(18, '\\llap'), + bt('\\mathrlap', '{:auto}', null, function(t, e) { + return { + type: 'overlap', + mode: 'math', + align: 'right', + skipBoundary: !0, + body: e[0], + }; + }), + J(j, '\\mathrlap'), + bt('\\mathllap', '{:auto}', null, function(t, e) { + return { + type: 'overlap', + mode: 'math', + align: 'left', + skipBoundary: !0, + body: e[0], + }; + }), + J(j, '\\mathllap'), + bt('\\boxed', '{content:math}', null, function(t, e) { + return { + type: 'box', + framecolor: 'black', + skipBoundary: !0, + body: e[0], + }; + }), + J(1236, '\\boxed'), + bt( + '\\colorbox', + '{background-color:color}{content:auto}', + { allowedInText: !0 }, + function(t, e) { + return { + type: 'box', + backgroundcolor: e[0], + skipBoundary: !0, + body: e[1], + }; + } + ), + J(j, '\\colorbox'), + bt( + '\\fcolorbox', + '{frame-color:color}{background-color:color}{content:auto}', + { allowedInText: !0 }, + function(t, e) { + return { + type: 'box', + framecolor: e[0], + backgroundcolor: e[1], + skipBoundary: !0, + body: e[2], + }; + } + ), + J(j, '\\fcolorbox'), + bt('\\bbox', '[:bbox]{body:auto}', { allowedInText: !0 }, function( + t, + e + ) { + return e[0] + ? { + type: 'box', + padding: e[0].padding, + border: e[0].border, + backgroundcolor: e[0].backgroundcolor, + skipBoundary: !0, + body: e[1], + } + : { type: 'box', skipBoundary: !0, body: e[1] }; + }), + J(j, '\\bbox'), + bt( + '\\enclose', + '{notation:string}[style:string]{body:auto}', + null, + function(t, e) { + let i = e[0] || []; + const s = { + type: 'enclose', + strokeColor: 'currentColor', + strokeWidth: 1, + strokeStyle: 'solid', + backgroundcolor: 'transparent', + padding: 'auto', + shadow: 'auto', + captureSelection: !0, + body: e[2], + }; + if (e[1]) { + const t = e[1].split( + /,(?![^(]*\)(?:(?:[^(]*\)){2})*[^"]*$)/ + ); + for (const e of t) { + const t = e.match(/\s*(\S+)\s+(\S+)\s+(.*)/); + if (t) + (s.strokeWidth = m.toPx(t[1], 'px')), + isFinite(s.strokeWidth) || + (s.strokeWidth = 1), + (s.strokeStyle = t[2]), + (s.strokeColor = t[3]); + else { + const t = e.match(/\s*([a-z]*)\s*=\s*"(.*)"/); + t && + ('mathbackground' === t[1] + ? (s.backgroundcolor = t[2]) + : 'mathcolor' === t[1] + ? (s.strokeColor = t[2]) + : 'padding' === t[1] + ? (s.padding = m.toPx(t[2], 'px')) + : 'shadow' === t[1] && + (s.shadow = t[2])); + } + } + 'dashed' === s.strokeStyle + ? (s.svgStrokeStyle = '5,5') + : 'dotted' === s.strokeStyle && + (s.svgStrokeStyle = '1,5'); + } + (s.borderStyle = + s.strokeWidth + + 'px ' + + s.strokeStyle + + ' ' + + s.strokeColor), + (i = i + .toString() + .split(/[, ]/) + .filter(t => t.length > 0) + .map(t => t.toLowerCase())), + (s.notation = {}); + for (const t of i) s.notation[t] = !0; + return ( + s.notation.updiagonalarrow && + (s.notation.updiagonalstrike = !1), + s.notation.box && + ((s.notation.left = !1), + (s.notation.right = !1), + (s.notation.bottom = !1), + (s.notation.top = !1)), + s + ); + } + ), + J(j, '\\enclose'), + bt('\\cancel', '{body:auto}', null, function(t, e) { + return { + type: 'enclose', + strokeColor: 'currentColor', + strokeWidth: 1, + strokeStyle: 'solid', + borderStyle: '1px solid currentColor', + backgroundcolor: 'transparent', + padding: 'auto', + shadow: 'auto', + notation: { updiagonalstrike: !0 }, + body: e[0], + }; + }), + bt('\\bcancel', '{body:auto}', null, function(t, e) { + return { + type: 'enclose', + strokeColor: 'currentColor', + strokeWidth: 1, + strokeStyle: 'solid', + borderStyle: '1px solid currentColor', + backgroundcolor: 'transparent', + padding: 'auto', + shadow: 'auto', + notation: { downdiagonalstrike: !0 }, + body: e[0], + }; + }), + bt('\\xcancel', '{body:auto}', null, function(t, e) { + return { + type: 'enclose', + strokeColor: 'currentColor', + strokeWidth: 1, + strokeStyle: 'solid', + borderStyle: '1px solid currentColor', + backgroundcolor: 'transparent', + padding: 'auto', + shadow: 'auto', + notation: { updiagonalstrike: !0, downdiagonalstrike: !0 }, + body: e[0], + }; + }), + J(j, '\\cancel', '\\bcancel', '\\xcancel'), + (W = 'Styling'), + bt( + [ + '\\tiny', + '\\scriptsize', + '\\footnotesize', + '\\small', + '\\normalsize', + '\\large', + '\\Large', + '\\LARGE', + '\\huge', + '\\Huge', + ], + '', + { allowedInText: !0 }, + function(t, e) { + return { + fontSize: { + tiny: 'size1', + scriptsize: 'size2', + footnotesize: 'size3', + small: 'size4', + normalsize: 'size5', + large: 'size6', + Large: 'size7', + LARGE: 'size8', + huge: 'size9', + Huge: 'size10', + }[t.slice(1)], + }; + } + ), + bt('\\fontseries', '{:text}', { allowedInText: !0 }, (t, e) => ({ + fontSeries: gt(e[0]), + })), + bt('\\bf', '', { allowedInText: !0 }, (t, e) => ({ + fontSeries: 'b', + })), + bt('\\bm', '{:math*}', { allowedInText: !0 }, (t, e) => ({ + fontSeries: 'b', + })), + bt('\\bold', '', { allowedInText: !0 }, (t, e) => ({ + mode: 'math', + fontSeries: 'b', + })), + bt( + ['\\mathbf', '\\boldsymbol'], + '{:math*}', + { allowedInText: !0 }, + (t, e) => ({ mode: 'math', fontSeries: 'b', fontShape: 'n' }) + ), + bt('\\bfseries', '', { allowedInText: !0 }, (t, e) => ({ + fontSeries: 'b', + })), + bt('\\textbf', '{:text*}', { allowedInText: !0 }, (t, e) => ({ + fontSeries: 'b', + })), + bt('\\mathmd', '{:math*}', { allowedInText: !0 }, (t, e) => ({ + mode: 'math', + fontSeries: 'm', + fontShape: 'n', + })), + bt('\\mdseries', '', { allowedInText: !0 }, (t, e) => ({ + fontSeries: 'm', + })), + bt('\\textmd', '{:math*}', { allowedInText: !0 }, (t, e) => ({ + fontSeries: 'm', + })), + bt('\\fontshape', '{:text}', { allowedInText: !0 }, (t, e) => ({ + fontShape: gt(e[0]), + })), + bt('\\it', '', { allowedInText: !0 }, (t, e) => ({ + fontShape: 'it', + })), + bt('\\mathit', '{:math*}', { allowedInText: !0 }, (t, e) => ({ + mode: 'math', + fontSeries: 'm', + fontShape: 'it', + })), + bt('\\upshape', '', { allowedInText: !0 }, (t, e) => ({ + fontShape: 'n', + })), + bt('\\textup', '{:text*}', { allowedInText: !0 }, (t, e) => ({ + fontShape: 'n', + })), + bt('\\textit', '{:text*}', { allowedInText: !0 }, (t, e) => ({ + fontShape: 'it', + })), + bt('\\slshape', '', { allowedInText: !0 }, (t, e) => ({ + fontShape: 'sl', + })), + bt('\\textsl', '{:text*}', { allowedInText: !0 }, (t, e) => ({ + fontShape: 'sl', + })), + bt('\\scshape', '', { allowedInText: !0 }, (t, e) => ({ + mode: 'text', + fontShape: 'sc', + })), + bt('\\textsc', '{:text*}', { allowedInText: !0 }, (t, e) => ({ + fontShape: 'sc', + })), + bt('\\fontfamily', '{:text}', { allowedInText: !0 }, (t, e) => ({ + fontFamily: gt(e[0]), + })), + bt('\\mathrm', '{:math*}', { allowedInText: !0 }, (t, e) => ({ + mode: 'math', + fontFamily: 'cmr', + fontSeries: 'm', + fontShape: 'n', + })), + bt('\\rmfamily', '', { allowedInText: !0 }, (t, e) => ({ + fontFamily: 'cmr', + })), + bt('\\textrm', '{:text*}', { allowedInText: !0 }, (t, e) => ({ + fontFamily: 'cmr', + })), + bt('\\mathsf', '{:math*}', { allowedInText: !0 }, (t, e) => ({ + mode: 'math', + baseFontFamily: 'cmss', + fontSeries: 'm', + fontShape: 'n', + })), + bt('\\sffamily', '', { allowedInText: !0 }, (t, e) => ({ + fontFamily: 'cmss', + })), + bt('\\textsf', '{:text*}', { allowedInText: !0 }, (t, e) => ({ + fontFamily: 'cmss', + })), + bt('\\mathtt', '{:math*}', { allowedInText: !0 }, (t, e) => ({ + mode: 'math', + baseFontFamily: 'cmtt', + fontSeries: 'm', + fontShape: 'n', + })), + bt('\\ttfamily', '', { allowedInText: !0 }, (t, e) => ({ + fontFamily: 'cmtt', + })), + bt('\\texttt', '{:text*}', { allowedInText: !0 }, (t, e) => ({ + fontFamily: 'cmtt', + })), + bt( + ['\\Bbb', '\\mathbb'], + '{:math*}', + { allowedInText: !0 }, + (t, e) => ({ mode: 'math', baseFontFamily: 'bb' }) + ), + bt( + ['\\frak', '\\mathfrak'], + '{:math*}', + { allowedInText: !0 }, + (t, e) => ({ baseFontFamily: 'frak' }) + ), + bt('\\mathcal', '{:math*}', { allowedInText: !0 }, (t, e) => ({ + mode: 'math', + baseFontFamily: 'cal', + fontSeries: 'm', + fontShape: 'n', + })), + bt('\\mathscr', '{:math*}', { allowedInText: !0 }, (t, e) => ({ + mode: 'math', + baseFontFamily: 'scr', + fontSeries: 'm', + fontShape: 'n', + })), + J(Z, '\\mathbb'), + J(1081, '\\Bbb'), + J(0, '\\mathcal'), + J(G, '\\mathfrak'), + J(271, '\\frak'), + J(G, '\\mathscr'), + J('UNCOMMON', '\\mathsf'), + J(G, '\\mathtt'), + J(G, '\\boldsymbol'), + bt('\\textnormal', '{:text*}', { allowedInText: !0 }, (t, e) => ({ + fontFamily: 'cmr', + fontShape: 'n', + fontSeries: 'n', + })), + bt('\\mbox', '{:text*}', null, (t, e) => ({ fontFamily: 'cmr' })), + bt('\\text', '{:text*}', { allowedInText: !0 }, (t, e) => ({})), + bt( + '\\class', + '{name:text}{content:auto*}', + { allowedInText: !0 }, + (t, e) => ({ cssClass: gt(e[0]) }) + ), + bt( + '\\cssId', + '{id:text}{content:auto}', + { allowedInText: !0 }, + (t, e) => ({ cssId: gt(e[0]), body: e[1], type: 'group' }) + ), + bt('\\em', '', { allowedInText: !0 }, (t, e) => ({ + cssClass: 'ML__emph', + type: 'group', + })), + bt('\\emph', '{:auto}', { allowedInText: !0 }, (t, e) => ({ + cssClass: 'ML__emph', + body: e[0], + type: 'group', + skipBoundary: !0, + })), + J(G, '\\textrm'), + J(G, '\\textit'), + J(G, '\\textsf'), + J(G, '\\texttt'), + J(433, '\\textnormal'), + J(G, '\\textbf'), + J(421, '\\textup'), + J(819, '\\emph'), + J(49, '\\em'), + (W = 'Operators'), + bt('\\sqrt', '[index:auto]{radicand:auto}', null, function(t, e) { + return { type: 'surd', body: e[1], index: e[0] }; + }), + J(Z, '\\sqrt'), + (W = 'Fractions'), + bt( + [ + '\\frac', + '\\dfrac', + '\\tfrac', + '\\cfrac', + '\\binom', + '\\dbinom', + '\\tbinom', + ], + '{numerator}{denominator}', + null, + function(t, e) { + const i = { + type: 'genfrac', + numer: e[0], + denom: e[1], + mathstyle: 'auto', + }; + switch (t) { + case '\\dfrac': + case '\\frac': + case '\\tfrac': + case '\\cfrac': + i.hasBarLine = !0; + break; + case '\\\\atopfrac': + i.hasBarLine = !1; + break; + case '\\dbinom': + case '\\binom': + case '\\tbinom': + (i.hasBarLine = !1), + (i.leftDelim = '('), + (i.rightDelim = ')'); + } + switch (t) { + case '\\dfrac': + case '\\dbinom': + i.mathstyle = 'displaystyle'; + break; + case '\\tfrac': + case '\\tbinom': + i.mathstyle = 'textstyle'; + } + return '\\cfrac' === t && (i.continuousFraction = !0), i; + } + ), + bt(['\\over', '\\atop', '\\choose'], '', { infix: !0 }, function( + t, + e + ) { + const i = e[0], + s = e[1]; + let a = !1, + o = null, + n = null; + switch (t) { + case '\\atop': + break; + case '\\over': + a = !0; + break; + case '\\choose': + (a = !1), (o = '('), (n = ')'); + break; + default: + throw new Error('Unrecognized genfrac command'); + } + return { + type: 'genfrac', + numer: i, + denom: s, + hasBarLine: a, + leftDelim: o, + rightDelim: n, + mathstyle: 'auto', + }; + }), + J(21, '\\over'), + J(12, '\\atop'), + J(1968, '\\choose'), + bt( + ['\\overwithdelims', '\\atopwithdelims'], + '{left-delim:delim}{right-delim:delim}', + { infix: !0 }, + function(t, e) { + return { + type: 'genfrac', + numer: e[0], + denom: e[1], + hasBarLine: !1, + leftDelim: e[2], + rightDelim: e[3], + mathstyle: 'auto', + }; + } + ), + J(15, '\\overwithdelims'), + J(G, '\\atopwithdelims'), + (W = 'Fractions'), + bt('\\pdiff', '{numerator}{denominator}', null, function(t, e) { + return { + type: 'genfrac', + numer: e[0], + denom: e[1], + numerPrefix: '∂', + denomPrefix: '∂', + hasBarLine: !0, + leftDelim: null, + rightDelim: null, + mathstyle: 'auto', + }; + }), + (W = 'Quantifiers'), + Y('\\forall', '', lt, '∀', Z), + Y('\\exists', '', lt, '∃', Z), + Y('\\nexists', nt, lt, '∄', Z), + Y('\\mid', '', ht, '∣', G), + Y('\\top', '', lt, '⊤', 'RARE'), + Y('\\bot', '', lt, '⊥', 'RARE'), + (W = 'Variable Sized Symbols'), + bt( + [ + '\\sum', + '\\prod', + '\\bigcup', + '\\bigcap', + '\\coprod', + '\\bigvee', + '\\bigwedge', + '\\biguplus', + '\\bigotimes', + '\\bigoplus', + '\\bigodot', + '\\bigsqcup', + '\\smallint', + '\\intop', + ], + '', + null, + function(t) { + return { + type: 'mop', + limits: 'auto', + symbol: !0, + baseFontFamily: 'cmr', + body: { + coprod: '∐', + bigvee: '⋁', + bigwedge: '⋀', + biguplus: '⨄', + bigcap: '⋂', + bigcup: '⋃', + intop: '∫', + prod: '∏', + sum: '∑', + bigotimes: '⨂', + bigoplus: '⨁', + bigodot: '⨀', + bigsqcup: '⨆', + smallint: '∫', + }[t.slice(1)], + }; + } + ), + bt( + [ + '\\int', + '\\iint', + '\\iiint', + '\\oint', + '\\oiint', + '\\oiiint', + '\\intclockwise', + '\\varointclockwise', + '\\ointctrclockwise', + '\\intctrclockwise', + ], + '', + null, + function(t) { + return { + type: 'mop', + limits: 'nolimits', + symbol: !0, + body: { + int: '∫', + iint: '∬', + iiint: '∭', + oint: '∮', + oiint: '∯', + oiiint: '∰', + intclockwise: '∱', + varointclockwise: '∲', + ointctrclockwise: '∳', + intctrclockwise: '⨑', + }[t.slice(1)], + }; + } + ), + J(Z, '\\sum', '\\prod', '\\bigcap', '\\bigcup', '\\int'), + J(G, '\\bigoplus', '\\smallint', '\\iint', '\\oint'), + J('RARE', '\\bigwedge', '\\bigvee'), + J(756, '\\coprod'), + J(723, '\\bigsqcup'), + J(1241, '\\bigotimes'), + J(150, '\\bigodot'), + J(174, '\\biguplus'), + J(878, '\\iiint'), + J(97, '\\intop'), + (W = 'Various'), + Y('\\sharp', '', lt, '♯', G), + Y('\\flat', '', lt, '♭', 590), + Y('\\natural', '', lt, '♮', 278), + Y('\\#', '', lt, '#', 'RARE'), + Y('\\&', '', lt, '&', 'RARE'), + Y('\\clubsuit', '', lt, '♣', 172), + Y('\\heartsuit', '', lt, '♡', 'ARCANE'), + Y('\\spadesuit', '', lt, '♠', 'ARCANE'), + Y('\\diamondsuit', '', lt, '♢', j), + Y('\\differencedelta', '', ht, '∆', G), + (W = 'Letters and Letter Like Forms'), + bt('\\unicode', '{charcode:number}', null, function(t, e) { + let i = parseInt(e[0]); + return ( + isFinite(i) || (i = 10067), + { type: 'mord', body: String.fromCodePoint(i) } + ); + }), + Y('\\backslash', '', lt, '\\'), + Y('?', '', lt, '?'), + Y('!', '', lt, '!'), + Y('\\nabla', '', lt, '∇', Z), + Y('\\partial', '', lt, '∂', Z), + Y('\\ell', '', lt, 'ℓ', G), + Y('\\imaginaryI', '', lt, 'i'), + Y('\\imaginaryJ', '', lt, 'j'), + bt(['\\Re', '\\Im'], '', null, function(t) { + return { + type: 'mop', + limits: 'nolimits', + symbol: !1, + isFunction: !0, + body: { '\\Re': 'ℜ', '\\Im': 'ℑ' }[t], + baseFontFamily: 'frak', + }; + }), + Y('\\hbar', '', lt, 'ℏ', G), + Y('\\hslash', nt, lt, 'ℏ', G), + Y('\\differentialD', 'cmr', lt, 'd'), + Y('\\rd', 'cmr', lt, 'd'), + Y('\\capitalDifferentialD', 'cmr', lt, 'D'), + Y('\\rD', 'cmr', lt, 'D'), + Y('\\exponentialE', 'cmr', lt, 'e'), + Y('\\Finv', nt, lt, 'Ⅎ', 3), + Y('\\Game', nt, lt, '⅁', 1), + Y('\\wp', '', lt, '℘', 1306), + Y('\\eth', nt, lt, 'ð', 77), + Y('\\mho', nt, lt, '℧', 138), + Y('\\Bbbk', nt, lt, 'k'), + Y('\\doubleStruckCapitalN', 'bb', lt, 'N'), + Y('\\N', 'bb', lt, 'N'), + Y('\\doubleStruckCapitalR', 'bb', lt, 'R'), + Y('\\R', 'bb', lt, 'R'), + Y('\\doubleStruckCapitalQ', 'bb', lt, 'Q'), + Y('\\Q', 'bb', lt, 'Q'), + Y('\\doubleStruckCapitalC', 'bb', lt, 'C'), + Y('\\C', 'bb', lt, 'C'), + Y('\\doubleStruckCapitalZ', 'bb', lt, 'Z'), + Y('\\Z', 'bb', lt, 'Z'), + Y('\\doubleStruckCapitalP', 'bb', lt, 'P'), + Y('\\P', 'bb', lt, 'P'), + Y('\\scriptCapitalE', 'scr', lt, 'E'), + Y('\\scriptCapitalH', 'scr', lt, 'H'), + Y('\\scriptCapitalL', 'scr', lt, 'L'), + Y('\\gothicCapitalC', 'frak', lt, 'C'), + Y('\\gothicCapitalH', 'frak', lt, 'H'), + Y('\\gothicCapitalI', 'frak', lt, 'I'), + Y('\\gothicCapitalR', 'frak', lt, 'R'), + Y('\\pounds', '', lt, '£', 509), + Y('\\yen', nt, lt, '¥', 57), + Y('\\euro', '', lt, '€', 4), + (W = 'Crosses'), + Y('\\textdagger', '', ct, '†'), + Y('\\dagger', '', ct, '†', G), + Y('\\dag', '', ct, '†', G), + Y('\\ddag', '', ct, '‡', 500), + Y('\\textdaggerdbl', '', ct, '‡'), + Y('\\ddagger', '', ct, '‡', 353), + Y('\\maltese', nt, lt, '✠', 24), + (W = 'Arrows'), + Y('\\longrightarrow', '', ht, '⟶', Z), + Y('\\rightarrow', '', ht, '→', Z), + Y('\\Longrightarrow', '', ht, '⟹', Z), + Y('\\Rightarrow', '', ht, '⇒', Z), + Y('\\longmapsto', '', ht, '⟼', G), + Y('\\mapsto', '', ht, '↦', G), + Y('\\Longleftrightarrow', '', ht, '⟺', G), + Y('\\rightleftarrows', nt, ht, '⇄', G), + Y('\\leftarrow', '', ht, '←', G), + Y('\\curvearrowleft', nt, ht, '↶', G), + Y('\\uparrow', '', ht, '↑', G), + Y('\\downarrow', '', ht, '↓', G), + Y('\\hookrightarrow', '', ht, '↪', G), + Y('\\rightharpoonup', '', ht, '⇀', G), + Y('\\rightleftharpoons', '', ht, '⇌', G), + Y('\\Leftarrow', '', ht, '⇐', 1695), + Y('\\longleftrightarrow', '', ht, '⟷', 1599), + Y('\\longleftarrow', '', ht, '⟵', 878), + Y('\\Longleftarrow', '', ht, '⟸', 296), + Y('\\searrow', '', ht, '↘', 1609), + Y('\\nearrow', '', ht, '↗', 1301), + Y('\\swarrow', '', ht, '↙', 167), + Y('\\nwarrow', '', ht, '↖', 108), + Y('\\Uparrow', '', ht, '⇑', 257), + Y('\\Downarrow', '', ht, '⇓', 556), + Y('\\updownarrow', '', ht, '↕', 192), + Y('\\Updownarrow', '', ht, '⇕', 161), + Y('\\hookleftarrow', '', ht, '↩', 115), + Y('\\leftharpoonup', '', ht, '↼', 93), + Y('\\leftharpoondown', '', ht, '↽', 42), + Y('\\rightharpoondown', '', ht, '⇁', 80), + Y('\\leftrightarrows', nt, ht, '⇆', 765), + Y('\\dashrightarrow', nt, ht, '⇢', 311), + Y('\\dashleftarrow', nt, ht, '⇠', 5), + Y('\\leftleftarrows', nt, ht, '⇇', 8), + Y('\\Lleftarrow', nt, ht, '⇚', 7), + Y('\\twoheadleftarrow', nt, ht, '↞', 32), + Y('\\leftarrowtail', nt, ht, '↢', 25), + Y('\\looparrowleft', nt, ht, '↫', 6), + Y('\\leftrightharpoons', nt, ht, '⇋', 205), + Y('\\circlearrowleft', nt, ht, '↺', 105), + Y('\\Lsh', nt, ht, '↰', 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Y('\\diamond', '', ct, '⋄', 1356), + Y('\\Diamond', nt, lt, '◊', 695), + Y('\\lozenge', nt, lt, '◊', 422), + Y('\\blacklozenge', nt, lt, '⧫', 344), + Y('\\bigstar', nt, lt, '★', 168), + (W = 'Hebrew'), + Y('\\aleph', '', lt, 'ℵ', 1381), + Y('\\beth', nt, lt, 'ℶ', 54), + Y('\\daleth', nt, lt, 'ℸ', 43), + Y('\\gimel', nt, lt, 'ℷ', 36), + (W = 'Fences'), + Y('\\lbrace', '', dt, '{', Z), + Y('\\rbrace', '', pt, '}', Z), + Y('\\langle', '', dt, '⟨', G), + Y('\\rangle', '', pt, '⟩', G), + Y('\\lfloor', '', dt, '⌊', G), + Y('\\rfloor', '', pt, '⌋', G), + Y('\\lceil', '', dt, '⌈', G), + Y('\\rceil', '', pt, '⌉', G), + Y('\\vert', '', lt, '∣', Z), + Y('\\mvert', '', ht, '∣'), + Y('\\lvert', '', dt, '∣', 496), + Y('\\rvert', '', pt, '∣', 496), + Y('\\|', '', lt, '∥'), + Y('\\Vert', '', lt, '∥', Z), + Y('\\mVert', '', lt, '∥'), + Y('\\lVert', '', dt, '∥', 287), + Y('\\rVert', '', pt, '∥', j), + Y('\\lbrack', '', dt, '[', 574), + Y('\\rbrack', '', pt, ']', 213), + Y('\\{', '', dt, '{'), + Y('\\}', 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'\\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 }, + }; + function kt(t) { + let e = '', + i = !0; + for (const s of t) + 'string' == typeof s.body ? (e += s.body) : (i = !1); + return i ? e : ''; + } + bt( + [ + '\\bigl', + '\\Bigl', + '\\biggl', + '\\Biggl', + '\\bigr', + '\\Bigr', + '\\biggr', + '\\Biggr', + '\\bigm', + '\\Bigm', + '\\biggm', + '\\Biggm', + '\\big', + '\\Big', + '\\bigg', + '\\Bigg', + ], + '{:delim}', + null, + function(t, e) { + return { + type: 'sizeddelim', + size: xt[t].size, + cls: xt[t].mclass, + delim: e[0], + }; + } + ), + (W = 'Relations'), + Y('=', '', ht, '=', Z), + Y('\\ne', '', ht, '≠', Z), + Y('\\neq', '', ht, '≠', G), + Y('<', '', ht, '<', Z), + Y('\\lt', '', ht, '<', G), + Y('>', '', ht, '>', Z), + Y('\\gt', '', ht, '>', G), + Y('\\le', '', ht, '≤', G), + Y('\\ge', '', ht, '≥', G), + Y('\\leqslant', nt, ht, '⩽', Z), + Y('\\geqslant', nt, ht, '⩾', Z), + Y('\\leq', '', ht, '≤', G), + Y('\\geq', '', ht, '≥', G), + Y('\\ll', '', ht, '≪'), + Y('\\gg', '', ht, '≫', G), + Y('\\coloneq', '', ht, '≔', 5), + Y('\\measeq', '', ht, '≝'), + Y('\\eqdef', '', ht, '≞'), + Y('\\questeq', '', ht, '≟'), + Y(':', 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'o'), + Y('\\pi', '', rt, 'π', G), + Y('\\varpi', '', rt, 'ϖ', G), + Y('\\rho', '', rt, 'ρ', G), + Y('\\varrho', '', rt, 'ϱ', G), + Y('\\sigma', '', rt, 'σ', G), + Y('\\varsigma', '', rt, 'ς', G), + Y('\\tau', '', rt, 'τ', G), + Y('\\phi', '', rt, 'ϕ', G), + Y('\\varphi', '', rt, 'φ', G), + Y('\\upsilon', '', rt, 'υ', G), + Y('\\chi', '', rt, 'χ', G), + Y('\\psi', '', rt, 'ψ', G), + Y('\\omega', '', rt, 'ω', G), + Y('\\Gamma', '', rt, 'Γ', G), + Y('\\Delta', '', rt, 'Δ', G), + Y('\\Theta', '', rt, 'Θ', G), + Y('\\Lambda', '', rt, 'Λ', G), + Y('\\Xi', '', rt, 'Ξ', G), + Y('\\Pi', '', rt, 'Π', G), + Y('\\Sigma', '', rt, 'Σ', G), + Y('\\Upsilon', '', rt, 'Υ', G), + Y('\\Phi', '', rt, 'Φ', G), + Y('\\Psi', '', rt, 'Ψ', G), + Y('\\Omega', '', rt, 'Ω', G), + Y('\\digamma', nt, rt, 'ϝ', 248), + (W = 'Others'), + Y('\\emptyset', '', lt, '∅', Z), + Y('\\varnothing', nt, lt, '∅', Z), + (W = 'Set Operators'), + Y('\\cap', '', ct, '∩', Z), + Y('\\cup', '', ct, '∪', Z), + Y('\\setminus', '', ct, '∖', G), + Y('\\smallsetminus', nt, ct, '∖', 254), + Y('\\complement', nt, lt, '∁', 200), + (W = 'Set Relations'), + Y('\\in', '', ht, '∈', Z), + Y('\\notin', '', ht, '∉', Z), + Y('\\not', '', ht, '̸', G), + Y('\\ni', '', ht, '∋', G), + Y('\\owns', '', ht, '∋', 18), + Y('\\subset', '', ht, '⊂', Z), + Y('\\supset', '', ht, '⊃', Z), + Y('\\subseteq', '', ht, '⊆', Z), + Y('\\supseteq', '', ht, '⊇', Z), + Y('\\subsetneq', nt, ht, '⊊', 1945), + Y('\\varsubsetneq', nt, ht, '', 198), + Y('\\subsetneqq', nt, ht, '⫋', 314), + Y('\\varsubsetneqq', nt, ht, '', 55), + Y('\\nsubset', nt, ht, '⊄', j), + Y('\\nsupset', nt, ht, '⊅', j), + Y('\\nsubseteq', nt, ht, '⊈', 950), + Y('\\nsupseteq', nt, ht, '⊉', 49), + (W = 'Spacing'), + Y('\\ ', '', mt, ' '), + Y('~', '', mt, ' '), + Y('\\space', '', mt, ' '), + Y('\\!', '', mt, null), + Y('\\,', '', mt, null), + Y('\\:', '', mt, null), + Y('\\;', '', mt, null), + Y('\\enskip', '', mt, null), + Y('\\enspace', '', mt, null, 672), + Y('\\quad', '', mt, null, G), + Y('\\qquad', '', mt, null, G), + bt( + ['\\hspace', '\\hspace*'], + '{width:skip}', + { allowedInText: !0 }, + function(t, e) { + return { type: 'spacing', width: e[0] || 0 }; + } + ), + bt( + [ + '\\mathop', + '\\mathbin', + '\\mathrel', + '\\mathopen', + '\\mathclose', + '\\mathpunct', + '\\mathord', + '\\mathinner', + ], + '{:auto}', + null, + function(t, e) { + const i = { + type: { + '\\mathop': 'mop', + '\\mathbin': 'mbin', + '\\mathrel': 'mrel', + '\\mathopen': 'mopen', + '\\mathclose': 'mclose', + '\\mathpunct': 'mpunct', + '\\mathord': 'mord', + '\\mathinner': 'minner', + }[t], + body: kt(e[0]) || e[0], + captureSelection: !0, + baseFontFamily: '\\mathop' === t ? 'math' : '', + }; + return ( + '\\mathop' === t && + ((i.limits = 'nolimits'), (i.isFunction = !0)), + i + ); + } + ), + bt( + ['\\operatorname', '\\operatorname*'], + '{operator:math}', + null, + function(t, e) { + const i = { + type: 'mop', + skipBoundary: !0, + body: e[0], + isFunction: !0, + }; + return ( + i.body.forEach(t => { + (t.isFunction = !1), (t.autoFontFamily = 'cmr'); + }), + '\\operatorname' === t + ? (i.limits = 'nolimits') + : '\\operatorname*' === t && (i.limits = 'limits'), + i + ); + } + ), + (W = 'Punctuation'), + Y('\\colon', '', 'mpunct', ':', G), + Y('\\cdotp', '', 'mpunct', '⋅', G), + Y('\\ldots', '', 'minner', '…', G), + Y('\\cdots', '', 'minner', '⋯', G), + Y('\\ddots', '', 'minner', '⋱', G), + Y('\\mathellipsis', '', 'minner', '…', 91), + Y('\\vdots', '', lt, '⋮', G), + Y('\\ldotp', '', 'mpunct', '.', 18), + Y(',', '', 'mpunct', ','), + Y(';', '', 'mpunct', ';'), + (W = 'Logical Operators'), + Y('\\wedge', '', ct, '∧', Z), + Y('\\vee', '', ct, '∨', Z), + Y('\\lnot', '', lt, '¬', G), + Y('\\neg', '', lt, '¬', Z), + Y('\\land', '', ct, '∧', 659), + Y('\\lor', '', ct, '∨', 364), + Y('\\barwedge', nt, ct, '⊼', 21), + Y('\\veebar', nt, ct, '⊻', 43), + Y('\\nor', nt, ct, '⊻', 7), + Y('\\curlywedge', nt, ct, '⋏', 58), + Y('\\curlyvee', nt, ct, '⋎', 57), + (W = 'Boxes'), + Y('\\square', nt, lt, '□', G), + Y('\\Box', nt, lt, '□', G), + Y('\\blacksquare', nt, lt, '■', 1679), + Y('\\boxminus', nt, ct, '⊟', 79), + Y('\\boxplus', nt, ct, '⊞', 276), + Y('\\boxtimes', nt, ct, '⊠', 457), + Y('\\boxdot', nt, ct, '⊡', 120), + (W = 'Circles'), + Y('\\circ', '', ct, '∘', Z), + Y('\\bigcirc', '', ct, '◯', 903), + Y('\\bullet', '', ct, '∙', G), + Y('\\circleddash', nt, ct, '⊝', G), + Y('\\circledast', nt, ct, '⊛', 339), + Y('\\oplus', '', ct, '⊕', G), + Y('\\ominus', '', ct, '⊖', 1568), + Y('\\otimes', '', ct, '⊗', G), + Y('\\odot', '', ct, '⊙', G), + Y('\\circledcirc', nt, ct, '⊚', 93), + Y('\\oslash', '', ct, '⊘', 497), + Y('\\circledS', nt, lt, 'Ⓢ', 31), + Y('\\circledR', nt, lt, '®', 1329), + (W = 'Triangles'), + Y('\\triangle', '', lt, '△', G), + Y('\\triangleq', nt, ht, '≜', G), + Y('\\bigtriangleup', '', ct, '△', 1773), + Y('\\vartriangle', nt, ht, '△', 762), + Y('\\triangledown', nt, lt, '▽', 520), + Y('\\bigtriangledown', '', ct, '▽', 661), + Y('\\triangleleft', '', ct, '◃', 534), + Y('\\vartriangleleft', nt, ht, '⊲', 281), + Y('\\trianglelefteq', nt, ht, '⊴', 176), + Y('\\ntriangleleft', nt, ht, '⋪', 13), + Y('\\ntrianglelefteq', nt, ht, '⋬', 22), + Y('\\triangleright', '', ct, '▹', 516), + Y('\\vartriangleright', nt, ht, '⊳', 209), + Y('\\trianglerighteq', nt, ht, '⊵', 45), + Y('\\ntriangleright', nt, ht, '⋫', 15), + Y('\\ntrianglerighteq', nt, ht, '⋭', 6), + Y('\\blacktriangle', nt, lt, '▲', 360), + Y('\\blacktriangledown', nt, lt, '▼', 159), + Y('\\blacktriangleleft', nt, ht, '◀', 101), + Y('\\blacktriangleright', nt, ht, '▶', 271), + (W = 'Others'), + Y('\\/', '', rt, '/'), + Y('|', '', 'textord', '∣'), + (W = 'Big Operators'), + Y('\\sqcup', '', ct, '⊔', 1717), + Y('\\sqcap', '', ct, '⊓', 735), + Y('\\uplus', '', ct, '⊎', 597), + Y('\\wr', '', ct, '≀', 286), + Y('\\Cap', nt, ct, '⋒', 2), + Y('\\Cup', nt, ct, '⋓', 2), + Y('\\doublecap', nt, ct, '⋒', 1), + Y('\\doublecup', nt, ct, '⋓', 1), + Y('\\amalg', '', ct, '⨿', j), + Y('\\And', '', ct, '&'), + (W = 'Accents'), + bt( + [ + '\\acute', + '\\grave', + '\\dot', + '\\ddot', + '\\mathring', + '\\tilde', + '\\bar', + '\\breve', + '\\check', + '\\hat', + '\\vec', + ], + '{body:auto}', + null, + function(t, e) { + return { + type: 'accent', + accent: { + '\\acute': 'ˊ', + '\\grave': 'ˋ', + '\\dot': '˙', + '\\ddot': '¨', + '\\mathring': '˚', + '\\tilde': '~', + '\\bar': 'ˉ', + '\\breve': '˘', + '\\check': 'ˇ', + '\\hat': '^', + '\\vec': '⃗', + }[t], + limits: 'accent', + skipBoundary: !0, + body: e[0], + }; + } + ), + J(G, '\\bar', '\\ddot', '\\acute', '\\tilde', '\\check'), + J(1548, '\\breve'), + J(735, '\\grave'), + J(Z, '\\vec'), + (W = 'Letters and Letter Like Forms'), + Y('\\imath', '', lt, 'ı'), + Y('\\jmath', '', lt, 'ȷ'), + (W = 'Others'), + Y('\\degree', '', lt, '°', 46), + (W = 'Others'), + Y("'", '', lt, '′'), + Y('"', '', lt, '”'), + (W = 'Others'), + bt('\\^', '{:string}', { allowedInText: !0 }, function(t, e) { + return { + type: 'mord', + limits: 'nolimits', + symbol: !0, + isFunction: !1, + body: + (e[0] && + { + a: 'â', + e: 'ê', + i: 'î', + o: 'ô', + u: 'û', + A: 'Â', + E: 'Ê', + I: 'Î', + O: 'Ô', + U: 'Û', + }[e[0]]) || + '^', + baseFontFamily: 'cmr', + }; + }), + bt('\\`', '{:string}', { allowedInText: !0 }, function(t, e) { + return { + type: 'mord', + limits: 'nolimits', + symbol: !0, + isFunction: !1, + body: + (e[0] && + { + a: 'à', + e: 'è', + i: 'ì', + o: 'ò', + u: 'ù', + A: 'À', + E: 'È', + I: 'Ì', + O: 'Ò', + U: 'Ù', + }[e[0]]) || + '`', + baseFontFamily: 'cmr', + }; + }), + bt("\\'", '{:string}', { allowedInText: !0 }, function(t, e) { + return { + type: 'mord', + limits: 'nolimits', + symbol: !0, + isFunction: !1, + body: + (e[0] && + { + a: 'á', + e: 'é', + i: 'í', + o: 'ó', + u: 'ú', + A: 'Á', + E: 'É', + I: 'Í', + O: 'Ó', + U: 'Ú', + }[e[0]]) || + '^', + baseFontFamily: 'cmr', + }; + }), + bt('\\~', '{:string}', { allowedInText: !0 }, function(t, e) { + return { + type: 'mord', + limits: 'nolimits', + symbol: !0, + isFunction: !1, + body: + (e[0] && + { n: 'ñ', N: 'Ñ', a: 'ã', o: 'õ', A: 'Ã', O: 'Õ' }[ + e[0] + ]) || + '´', + baseFontFamily: 'cmr', + }; + }), + bt('\\c', '{:string}', { allowedInText: !0 }, function(t, e) { + return { + type: 'mord', + limits: 'nolimits', + symbol: !0, + isFunction: !1, + body: (e[0] && { c: 'ç', C: 'Ç' }[e[0]]) || '', + baseFontFamily: 'cmr', + }; + }); + const vt = { + '\\#': '#', + '\\&': '&', + '\\$': '$', + '\\%': '%', + '\\_': '_', + '\\euro': '€', + '\\maltese': '✠', + '\\{': '{', + '\\}': '}', + '\\nobreakspace': ' ', + '\\ldots': '…', + '\\textellipsis': '…', + '\\backslash': '\\', + '`': '‘', + "'": '’', + '``': '“', + "''": '”', + '\\degree': '°', + '\\textasciicircum': '^', + '\\textasciitilde': '~', + '\\textasteriskcentered': '*', + '\\textbackslash': '\\', + '\\textbraceleft': '{', + '\\textbraceright': '}', + '\\textbullet': '•', + '\\textdollar': '$', + '\\textsterling': '£', + '–': '–', + '—': '—', + '‘': '‘', + '’': '’', + '“': '“', + '”': '”', + '"': '”', + '\\ss': 'ß', + '\\ae': 'æ', + '\\oe': 'œ', + '\\AE': 'Æ', + '\\OE': 'Œ', + '\\O': 'Ø', + '\\i': 'ı', + '\\j': 'ȷ', + '\\aa': 'å', + '\\AA': 'Å', + }, + wt = + 'undefined' != typeof navigator && + /firefox|edge/i.test(navigator.userAgent) + ? /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/ + : new RegExp('\\p{Letter}', 'u'), + St = + 'undefined' != typeof navigator && + /firefox|edge/i.test(navigator.userAgent) + ? /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/ + : new RegExp('[0-9\\p{Letter}]', 'u'); + var At = { + matchCodepoint: et, + commandAllowed: function(t, e) { + return ( + !(!V[e] || ('text' === t && !V[e].allowedInText)) || + !!{ text: vt, math: H }[t][e] + ); + }, + unicodeToMathVariant: at, + mathVariantToUnicode: function(t, e, i) { + if (!/[A-Za-z0-9]/.test(t)) return t; + if (!e && !i) return t; + const s = t.codePointAt(0); + for (let t = 0; t < st.length; t++) + if ( + (!e || st[t].variant === e) && + (!i || st[t].style === i) && + s >= st[t].offset && + s < st[t].offset + st[t].len + ) { + const e = st[t].start + s - st[t].offset; + return String.fromCodePoint(it[e] || e); + } + return t; + }, + unicodeStringToLatex: function(t, e) { + let i = ''; + for (const s of e) i += ot(t, s.codePointAt(0)); + return i; + }, + getInfo: function(t, e, i) { + if (0 === t.length) return null; + let s = null; + if ('\\' === t.charAt(0)) { + if (((s = V[t]), s)) + return 'math' === e || s.allowedInText ? s : null; + if ( + (s || + ('math' === e + ? (s = H[t]) + : vt[t] && (s = { value: vt[t] })), + !s) + ) { + const e = t.slice(1); + if (i && i[e]) { + let t = i[e]; + 'object' == typeof t && (t = t.def); + let a = 0; + for ( + /(^|[^\\])#1/.test(t) && (a = 1), + /(^|[^\\])#2/.test(t) && (a = 2), + /(^|[^\\])#3/.test(t) && (a = 3), + /(^|[^\\])#4/.test(t) && (a = 4), + /(^|[^\\])#5/.test(t) && (a = 5), + /(^|[^\\])#6/.test(t) && (a = 6), + /(^|[^\\])#7/.test(t) && (a = 7), + /(^|[^\\])#8/.test(t) && (a = 8), + /(^|[^\\])#9/.test(t) && (a = 9), + s = { + type: 'group', + allowedInText: !1, + params: [], + infix: !1, + }; + a >= 1; + + ) + s.params.push({ + optional: !1, + type: 'math', + defaultValue: null, + placeholder: null, + }), + (a -= 1); + } + } + } else + 'math' === e ? (s = H[t]) : vt[t] && (s = { value: vt[t] }); + return ( + !s || + 'mord' !== s.type || + ('f' !== s.value && + 'g' !== s.value && + 'h' !== s.value) || + (s.isFunction = !0), + s + ); + }, + getValue: function(t, e) { + return 'math' === t + ? H[e] && H[e].value + ? H[e].value + : e + : vt[e] + ? vt[e] + : e; + }, + getEnvironmentInfo: function(t) { + let e = U[t]; + return ( + e || + (e = { + params: '', + parser: null, + mathstyle: 'displaystyle', + tabular: !0, + colFormat: [], + lFence: '.', + rFence: '.', + }), + e + ); + }, + suggest: function(t) { + if (t.length <= 1) return []; + const e = []; + for (const i in V) + Object.prototype.hasOwnProperty.call(V, i) && + i.startsWith(t) && + !V[i].infix && + e.push({ match: i, frequency: V[i].frequency }); + for (const i in H) + Object.prototype.hasOwnProperty.call(H, i) && + i.startsWith(t) && + e.push({ match: i, frequency: H[i].frequency }); + return ( + e.sort((t, e) => + t.frequency === e.frequency + ? t.match.length - e.match.length + : (e.frequency || 0) - (t.frequency || 0) + ), + e + ); + }, + FREQUENCY_VALUE: X, + TEXT_SYMBOLS: vt, + MATH_SYMBOLS: H, + ENVIRONMENTS: U, + 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', + }, + FUNCTIONS: V, + MACROS: { + iff: '\\;⟺\\;', + nicefrac: '^{#1}\\!\\!/\\!_{#2}', + 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', + }, + COMMAND_MODE_CHARACTERS: /[a-zA-Z0-9!@*()-=+{}[\]\\';:?/.,~<>`|'$%#&^_" ]/, + LETTER: wt, + LETTER_AND_DIGITS: St, + }; + const Mt = $.makeSymbol, + Ct = $.makeSpan, + _t = $.makeVlist; + function Tt(t, e, i, s, a, o) { + const n = Mt('Size' + i + '-Regular', At.getValue('math', e)), + r = $.makeStyleWrap( + t, + Ct(n, 'delimsizing size' + i), + a.mathstyle, + M.TEXT, + o + ); + return ( + s && + r.setTop( + (1 - a.mathstyle.sizeMultiplier) * + a.mathstyle.metrics.axisHeight + ), + r.setStyle('color', a.color), + 'number' == typeof a.opacity && + r.setStyle('opacity', a.opacity), + r + ); + } + function Lt(t, e) { + let i = ''; + return ( + 'Size1-Regular' === e + ? (i = ' delim-size1') + : 'Size4-Regular' === e && (i = ' delim-size4'), + Ct(Mt(e, At.getValue('math', t)), 'delimsizinginner' + i) + ); + } + function Ft(t, e, i, s, a, o) { + let n, r, l, c; + (n = l = c = At.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 = ' ')) + : '\\urcorner' === e + ? ((n = '┐'), (l = c = ' ')) + : '\\llcorner' === e + ? ((c = '└'), (l = n = ' ')) + : '\\lrcorner' === e && ((n = '┘'), (l = n = ' ')); + const d = m.getCharacterMetrics(At.getValue('math', n), h), + p = d.height + d.depth, + u = m.getCharacterMetrics(At.getValue('math', l), h), + f = u.height + u.depth, + g = m.getCharacterMetrics(At.getValue('math', c), h), + y = g.height + g.depth; + let b = 0, + x = 1; + if (null !== r) { + const t = m.getCharacterMetrics(At.getValue('math', r), h); + (b = t.height + t.depth), (x = 2); + } + const k = p + y + b, + v = Math.ceil((i - k) / (x * f)), + w = k + v * x * f; + let S = a.mathstyle.metrics.axisHeight; + s && (S *= a.mathstyle.sizeMultiplier); + const A = w / 2 - S, + C = []; + if ((C.push(Lt(c, h)), null === r)) + for (let t = 0; t < v; t++) C.push(Lt(l, h)); + else { + for (let t = 0; t < v; t++) C.push(Lt(l, h)); + C.push(Lt(r, h)); + for (let t = 0; t < v; t++) C.push(Lt(l, h)); + } + C.push(Lt(n, h)); + const _ = _t(a, C, 'bottom', A); + return ( + _.setStyle('color', a.color), + 'number' == typeof a.opacity && + _.setStyle('opacity', a.opacity), + $.makeStyleWrap( + t, + Ct(_, 'delimsizing mult'), + a.mathstyle, + M.TEXT, + o + ) + ); + } + const Dt = [ + '(', + ')', + '[', + '\\lbrack', + ']', + '\\rbrack', + '\\{', + '\\lbrace', + '\\}', + '\\rbrace', + '\\lfloor', + '\\rfloor', + '\\lceil', + '\\rceil', + '\\surd', + ], + zt = [ + '\\uparrow', + '\\downarrow', + '\\updownarrow', + '\\Uparrow', + '\\Downarrow', + '\\Updownarrow', + '|', + '\\|', + '\\vert', + '\\Vert', + '\\lvert', + '\\rvert', + '\\lVert', + '\\rVert', + '\\mvert', + '\\mid', + '\\lgroup', + '\\rgroup', + '\\lmoustache', + '\\rmoustache', + ], + Et = [ + '<', + '>', + '\\langle', + '\\rangle', + '/', + '\\backslash', + '\\lt', + '\\gt', + ], + qt = [0, 1.2, 1.8, 2.4, 3], + Pt = [ + { type: 'small', mathstyle: M.SCRIPTSCRIPT }, + { type: 'small', mathstyle: M.SCRIPT }, + { type: 'small', mathstyle: M.TEXT }, + { type: 'large', size: 1 }, + { type: 'large', size: 2 }, + { type: 'large', size: 3 }, + { type: 'large', size: 4 }, + ], + It = [ + { type: 'small', mathstyle: M.SCRIPTSCRIPT }, + { type: 'small', mathstyle: M.SCRIPT }, + { type: 'small', mathstyle: M.TEXT }, + { type: 'stack' }, + ], + Bt = [ + { type: 'small', mathstyle: M.SCRIPTSCRIPT }, + { type: 'small', mathstyle: M.SCRIPT }, + { type: 'small', mathstyle: M.TEXT }, + { type: 'large', size: 1 }, + { type: 'large', size: 2 }, + { type: 'large', size: 3 }, + { type: 'large', size: 4 }, + { type: 'stack' }, + ]; + function Ot(t, e, i, s, a, o) { + if (!e || 0 === e.length || '.' === e) return Rt(t, a, t); + let n; + '<' === e || '\\lt' === e + ? (e = '\\langle') + : ('>' !== e && '\\gt' !== e) || (e = '\\rangle'), + (n = Et.includes(e) ? Pt : Dt.includes(e) ? Bt : It); + 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: M.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]; + })(At.getValue('math', e), i, n, a); + return 'small' === r.type + ? (function(t, e, i, s, a, o) { + const n = Mt('AMS-Regular', At.getValue('math', e)), + r = $.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 + ? Tt(t, e, r.size, s, a, o) + : Ft(t, e, i, s, a, o); + } + function Rt(t, e, i) { + return $.makeSpanOfType( + t, + '', + 'sizing' + + e.mathstyle.adjustTo(M.TEXT) + + ' nulldelimiter ' + + (i || '') + ); + } + var Kt = { + makeSizedDelim: function(t, e, i, s, a) { + return '.' === e + ? Rt(t, s, a) + : ('<' === e || '\\lt' === e + ? (e = '\\langle') + : ('>' !== e && '\\gt' !== e) || (e = '\\rangle'), + Dt.includes(e) || Et.includes(e) + ? Tt(t, e, i, !1, s, a) + : zt.includes(e) + ? Ft(t, e, qt[i], !1, s, a) + : null); + }, + makeCustomSizedDelim: Ot, + makeLeftRightDelim: function(t, e, i, s, a, o) { + if ('.' === e) return Rt(t, a, o); + const n = + a.mathstyle.metrics.axisHeight * + a.mathstyle.sizeMultiplier, + r = 5 / m.METRICS.ptPerEm; + let l = s + n, + c = i - n; + c = Math.max(l, c); + let h = (901 * c) / 500; + return ( + (l = 2 * c - r), (h = Math.max(h, l)), Ot(t, e, h, !0, a, o) + ); + }, + }; + const Nt = $.makeSpan, + $t = $.makeOrd, + Wt = $.makeInner, + Ht = $.makeHlist, + Vt = $.makeVlist, + Ut = /\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5/, + jt = /^([A-Za-z]|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)$/, + Gt = { + size1: 0.5, + size2: 0.7, + size3: 0.8, + size4: 0.9, + size5: 1, + size6: 1.2, + size7: 1.44, + size8: 1.73, + size9: 2.07, + size10: 2.49, + }; + class Zt { + 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 = Gt[this.fontSize]), + 'math' === this.mode) + ) { + const t = 'string' == typeof this.body ? this.body : ''; + (this.autoFontFamily = 'cmr'), + jt.test(t) + ? (this.autoFontFamily = 'math') + : /\\imath|\\jmath|\\pounds/.test(t) + ? (this.autoFontFamily = 'mainit') + : Ut.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 = $t(Qt(e, this.body)); + return ( + this.cssId && (i.cssId = this.cssId), + i.applyStyle({ + backgroundColor: this.backgroundColor, + cssClass: this.cssClass, + }), + i + ); + } + decomposeArray(t) { + let e = this.colFormat; + e && 0 === e.length && (e = [{ align: 'l' }]), + e || + (e = [ + { align: 'l' }, + { align: 'l' }, + { align: 'l' }, + { align: 'l' }, + { align: 'l' }, + { align: 'l' }, + { align: 'l' }, + { align: 'l' }, + { align: 'l' }, + { align: 'l' }, + ]); + const i = []; + let s = 0; + for (const t of e) t.align && s++; + for (const t of this.array) { + let e = 0; + for (; e < t.length; ) { + const a = [], + o = Math.min(t.length, e + s); + for (; e < o; ) a.push(t[e++]); + i.push(a); + } + } + 1 === i[i.length - 1].length && + 0 === i[i.length - 1][0].length && + i.pop(); + const a = M.toMathstyle(this.mathstyle) || t.mathstyle, + o = (this.arraystretch || 1) * h.baselineskip, + n = 0.7 * o, + r = 0.3 * o; + let l = 0, + c = 0; + const d = [], + p = i.length; + for (let e = 0; e < p; ++e) { + const s = i[e]; + c = Math.max(c, s.length); + let a = n, + o = r; + const h = []; + for (let e = 0; e < s.length; ++e) { + const i = + Qt( + t.clone({ mathstyle: this.mathstyle }), + s[e] + ) || [], + n = [$t(null)].concat(i); + (o = Math.max(o, $.depth(n))), + (a = Math.max(a, $.height(n))), + h.push(n); + } + let m = e === p - 1 ? 0 : this.jot || 0; + this.rowGaps && + this.rowGaps[e] && + ((m = this.rowGaps[e]), + m > 0 && ((m += r), o < m && (o = m), (m = 0))), + (h.height = a), + (h.depth = o), + (l += a), + (h.pos = l), + (l += o + m), + d.push(h); + } + const m = l / 2 + a.metrics.axisHeight, + u = []; + for (let e = 0; e < c; e++) { + const i = []; + for (const t of d) { + const s = t[e]; + s && + ((s.depth = t.depth), + (s.height = t.height), + i.push(s), + i.push(t.pos - m)); + } + i.length > 0 && u.push(Vt(t, i, 'individualShift')); + } + const f = []; + let g = !1, + y = !1, + b = 0, + x = !this.lFence; + for (const i of e) { + if (i.align && b >= u.length) break; + if (i.align && b < u.length) + g + ? f.push(Xt(2 * h.arraycolsep)) + : (y || x) && f.push(Xt(h.arraycolsep)), + f.push(Nt(u[b], 'col-align-' + i.align)), + b++, + (g = !0), + (y = !1), + (x = !1); + else if (void 0 !== i.gap) + 'number' == typeof i.gap + ? f.push(Xt(i.gap)) + : f.push(Jt(t, d, m, i.gap)), + (g = !1), + (y = !1), + (x = !1); + else if (i.rule) { + const e = Nt(null, 'vertical-separator'); + e.setStyle('height', l, 'em'), + e.setStyle( + 'margin-top', + 3 * t.mathstyle.metrics.axisHeight - m, + 'em' + ), + e.setStyle('vertical-align', 'top'); + let i = 0; + y + ? (i = h.doubleRuleSep - h.arrayrulewidth) + : g && (i = h.arraycolsep - h.arrayrulewidth), + e.setLeft(i, 'em'), + f.push(e), + (g = !1), + (y = !0), + (x = !1); + } + } + if ( + (g && !this.rFence && f.push(Xt(h.arraycolsep)), + !( + (this.lFence && '.' !== this.lFence) || + (this.rFence && '.' !== this.rFence) + )) + ) + return $t(f, 'mtable'); + const k = Nt(f, 'mtable'), + v = $.height(k), + w = $.depth(k); + return $t([ + this.bind( + t, + Kt.makeLeftRightDelim('mopen', this.lFence, v, w, t) + ), + k, + this.bind( + t, + Kt.makeLeftRightDelim('mclose', this.rFence, v, w, t) + ), + ]); + } + decomposeGenfrac(t) { + const e = + 'auto' === this.mathstyle + ? t.mathstyle + : M.toMathstyle(this.mathstyle), + i = t.clone({ mathstyle: e }); + let s = []; + this.numerPrefix && s.push($t(this.numerPrefix)); + const a = this.continuousFraction ? e : e.fracNum(); + s = s.concat(Qt(i.clone({ mathstyle: a }), this.numer)); + const o = Ht(s, t.mathstyle.adjustTo(a)); + let n = []; + this.denomPrefix && n.push($t(this.denomPrefix)); + const r = this.continuousFraction ? e : e.fracDen(); + n = n.concat(Qt(i.clone({ mathstyle: r }), this.denom)); + const l = Ht(n, t.mathstyle.adjustTo(r)), + c = this.hasBarLine + ? h.defaultRuleThickness / e.sizeMultiplier + : 0; + let d, p, m; + e.size === M.DISPLAY.size + ? ((d = e.metrics.num1), + (p = c > 0 ? 3 * c : 7 * h.defaultRuleThickness), + (m = e.metrics.denom1)) + : (c > 0 + ? ((d = e.metrics.num2), (p = c)) + : ((d = e.metrics.num3), + (p = 3 * h.defaultRuleThickness)), + (m = e.metrics.denom2)); + const u = o ? o.depth : 0, + f = l ? l.height : 0; + let g; + if (0 === c) { + const t = d - u - (f - m); + t < p && ((d += 0.5 * (p - t)), (m += 0.5 * (p - t))), + (g = Vt(i, [o, -d, l, m], 'individualShift')); + } else { + const t = e.metrics.axisHeight; + d - u - (t + 0.5 * c) < p && + (d += p - (d - u - (t + 0.5 * c))), + t - 0.5 * c - (f - m) < p && + (m += p - (t - 0.5 * c - (f - m))); + const s = Nt(null, ' frac-line'); + s.applyStyle(this.getStyle()), (s.height = c); + const a = []; + o && (a.push(o), a.push(-d)), + a.push(s), + a.push(c / 2 - t), + l && (a.push(l), a.push(m)), + (g = Vt(i, a, 'individualShift')); + } + (g.classes += ' mfrac'), + (g.height *= e.sizeMultiplier / t.mathstyle.sizeMultiplier), + (g.depth *= e.sizeMultiplier / t.mathstyle.sizeMultiplier); + const y = + e.size === M.DISPLAY.size + ? e.metrics.delim1 + : e.metrics.delim2, + b = this.bind( + t, + Kt.makeCustomSizedDelim( + 'mopen', + this.leftDelim, + y, + !0, + t.clone({ mathstyle: e }) + ) + ), + x = this.bind( + t, + Kt.makeCustomSizedDelim( + 'mclose', + this.rightDelim, + y, + !0, + t.clone({ mathstyle: e }) + ) + ); + b.applyStyle(this.getStyle()), x.applyStyle(this.getStyle()); + const k = $t( + [b, g, x], + t.parentSize !== t.size + ? 'sizing reset-' + t.parentSize + ' ' + t.size + : '' + ); + return this.bind(t, k); + } + decomposeLeftright(t) { + if (!this.body) + return this.leftDelim + ? new Zt('math', 'mopen', this.leftDelim).decompose(t) + : this.rightDelim + ? new Zt('math', 'mclose', this.rightDelim).decompose(t) + : null; + const e = t.clone(), + i = Qt(e, this.body), + s = e.mathstyle; + let a = 0, + o = 0, + n = []; + if ( + ((a = $.height(i) * s.sizeMultiplier), + (o = $.depth(i) * s.sizeMultiplier), + this.leftDelim && + (n.push( + this.bind( + t, + Kt.makeLeftRightDelim( + 'mopen', + this.leftDelim, + a, + o, + e + ) + ) + ), + n[n.length - 1].applyStyle(this.getStyle())), + i) + ) { + for (let s = 0; s < i.length; s++) + if (i[s].delim) { + const n = i[s].caret, + r = /ML__selected/.test(i[s].classes); + (i[s] = this.bind( + t, + Kt.makeLeftRightDelim( + 'minner', + i[s].delim, + a, + o, + e + ) + )), + (i[s].caret = n), + i[s].selected(r); + } + n = n.concat(i); + } + if (this.rightDelim) { + let i, + s = this.rightDelim; + '?' === s && + ((s = { + '(': ')', + '\\{': '\\}', + '\\[': '\\]', + '\\lbrace': '\\rbrace', + '\\langle': '\\rangle', + '\\lfloor': '\\rfloor', + '\\lceil': '\\rceil', + '\\vert': '\\vert', + '\\lvert': '\\rvert', + '\\Vert': '\\Vert', + '\\lVert': '\\rVert', + '\\lbrack': '\\rbrack', + '\\ulcorner': '\\urcorner', + '\\llcorner': '\\lrcorner', + '\\lgroup': '\\rgroup', + '\\lmoustache': '\\rmoustache', + }[this.leftDelim]), + (s = s || this.leftDelim), + (i = 'ML__smart-fence__close')), + n.push( + this.bind( + t, + Kt.makeLeftRightDelim('mclose', s, a, o, e, i) + ) + ), + n[n.length - 1].applyStyle(this.getStyle()); + } + return this.inner ? Wt(n, s.cls()) : n; + } + decomposeSurd(t) { + const e = t.mathstyle, + i = Qt(t.cramp(), this.body), + s = h.defaultRuleThickness / e.sizeMultiplier; + let a = s; + e.id < M.TEXT.id && (a = e.metrics.xHeight); + let o = s + a / 4; + const n = + Math.max( + 2 * a, + ($.height(i) + $.depth(i)) * e.sizeMultiplier + ) + + (o + s), + r = Nt( + Kt.makeCustomSizedDelim('', '\\surd', n, !1, t), + 'sqrt-sign' + ); + r.applyStyle(this.getStyle()); + const l = r.height + r.depth - s; + l > $.height(i) + $.depth(i) + o && + (o = (o + l - ($.height(i) + $.depth(i))) / 2), + r.setTop(r.height - $.height(i) - (o + s)); + const c = Nt(null, t.mathstyle.adjustTo(M.TEXT) + ' sqrt-line'); + c.applyStyle(this.getStyle()), (c.height = s); + const d = Vt(t, [i, o, c, s]); + if (!this.index) return this.bind(t, $t([r, d], 'sqrt')); + const p = t.clone({ mathstyle: M.SCRIPTSCRIPT }), + m = Nt(Qt(p, this.index), e.adjustTo(M.SCRIPTSCRIPT)), + u = Math.max(r.height, d.height), + f = Math.max(r.depth, d.depth), + g = Vt(t, [m], 'shift', -0.6 * (u - f)); + return this.bind(t, $t([Nt(g, 'root'), r, d], 'sqrt')); + } + decomposeAccent(t) { + const e = t.mathstyle; + let i = Qt(t.cramp(), this.body); + (this.superscript || this.subscript) && + (i = this.attachSupsub(t, $t(i), 'mord')); + let s = 0; + Array.isArray(this.body) && + 1 === this.body.length && + this.body[0].isCharacterBox() && + (s = $.skew(i)); + const a = Math.min($.height(i), e.metrics.xHeight), + o = $.makeSymbol('Main-Regular', this.accent, 'math'); + o.italic = 0; + const n = '⃗' === this.accent ? ' accent-vec' : ''; + let r = Nt(Nt(o), 'accent-body' + n); + return ( + (r = Vt(t, [i, -a, r])), + r.children[1].setLeft(2 * s), + $t(r, 'accent') + ); + } + decomposeLine(t) { + const e = t.mathstyle, + i = Qt(t.cramp(), this.body), + s = h.defaultRuleThickness / e.sizeMultiplier, + a = Nt( + null, + t.mathstyle.adjustTo(M.TEXT) + + ' ' + + this.position + + '-line' + ); + let o; + if ( + ((a.height = s), + (a.maxFontSize = 1), + 'overline' === this.position) + ) + o = Vt(t, [i, 3 * s, a, s]); + else { + const e = Nt(i); + o = Vt(t, [s, a, 3 * s, e], 'top', $.height(e)); + } + return $t(o, this.position); + } + decomposeOverunder(t) { + const e = Qt(t, this.body), + i = t.clone({ mathstyle: 'scriptstyle' }), + s = this.overscript + ? Nt( + Qt(i, this.overscript), + t.mathstyle.adjustTo(i.mathstyle) + ) + : null, + a = this.underscript + ? Nt( + Qt(i, this.underscript), + t.mathstyle.adjustTo(i.mathstyle) + ) + : null; + return Yt(t, e, 0, 0, s, a, this.mathtype || 'mrel'); + } + decomposeOverlap(t) { + const e = Nt(Qt(t, this.body), 'inner'); + return $t( + [e, Nt(null, 'fix')], + 'left' === this.align ? 'llap' : 'rlap' + ); + } + decomposeRule(t) { + const e = t.mathstyle, + i = $t('', '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 === M.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 = $.makeSymbol( + n, + this.body, + 'op-symbol ' + (s ? 'large-op' : 'small-op') + )), + (i.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 = $.makeOp(Qt(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 === M.DISPLAY.size) + ? this.attachLimits(t, i, a, o) + : this.attachSupsub(t, i, 'mop'); + } + return this.symbol && i.setTop(a), i; + } + decomposeBox(t) { + const e = $t(Qt(t, this.body)), + i = Nt(); + i.setStyle('position', 'absolute'); + const s = + 'number' == typeof this.padding ? this.padding : h.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', + h.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 = Nt([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 = $t(Qt(t, this.body)), + i = 'auto' === this.padding ? 0.2 : this.padding; + e.setStyle('padding', i, 'em'), + e.setStyle('display', 'inline-block'), + e.setStyle('height', e.height + e.depth, 'em'), + e.setStyle('left', -i, 'em'), + this.backgroundcolor && + 'transparent' !== this.backgroundcolor && + e.setStyle('background-color', this.backgroundcolor); + let s = ''; + if ( + (this.notation.box && + e.setStyle('border', this.borderStyle), + this.notation.actuarial && + (e.setStyle('border-top', this.borderStyle), + e.setStyle('border-right', this.borderStyle)), + this.notation.madruwb && + (e.setStyle('border-bottom', this.borderStyle), + e.setStyle('border-right', this.borderStyle)), + this.notation.roundedbox && + (e.setStyle( + 'border-radius', + ($.height(e) + $.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 += ' 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 = Nt('​', '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)), + (i.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 = Qt(t.sup(), this.superscript); + a = Nt(e, s.adjustTo(s.sup())); + } + if (this.subscript) { + const e = Qt(t.sub(), this.subscript); + o = Nt(e, s.adjustTo(s.sub())); + } + let n, + r = 0, + l = 0; + this.isCharacterBox() || + ((r = $.height(e) - s.metrics.supDrop), + (l = $.depth(e) + s.metrics.subDrop)), + (n = + s === M.DISPLAY + ? s.metrics.sup1 + : s.cramped + ? s.metrics.sup3 + : s.metrics.sup2); + const c = M.TEXT.sizeMultiplier * s.sizeMultiplier, + d = 0.5 / h.ptPerEm / c; + let p = null; + if (o && a) { + (r = Math.max(r, n, a.depth + 0.25 * s.metrics.xHeight)), + (l = Math.max(l, s.metrics.sub2)); + const i = h.defaultRuleThickness; + if (r - $.depth(a) - ($.height(o) - l) < 4 * i) { + l = 4 * i - (r - a.depth) + $.height(o); + const t = 0.8 * s.metrics.xHeight - (r - $.depth(a)); + t > 0 && ((r += t), (l -= t)); + } + (p = Vt(t, [o, l, a, -r], 'individualShift')), + this.symbol && p.children[0].setLeft(-$.italic(e)); + } else + o && !a + ? ((l = Math.max( + l, + s.metrics.sub1, + $.height(o) - 0.8 * s.metrics.xHeight + )), + (p = Vt(t, [o], 'shift', l)), + p.children[0].setRight(d), + this.isCharacterBox() && + p.children[0].setLeft(-$.italic(e))) + : !o && + a && + ((r = Math.max( + r, + n, + a.depth + 0.25 * s.metrics.xHeight + )), + (p = Vt(t, [a], 'shift', -r)), + p.children[0].setRight(d)); + const m = Nt(p, 'msubsup'); + return ( + this.caret && (m.caret = this.caret), + $.makeSpanOfType(i, [e, m]) + ); + } + attachLimits(t, e, i, s) { + const a = this.superscript + ? Nt( + Qt(t.sup(), this.superscript), + t.mathstyle.adjustTo(t.mathstyle.sup()) + ) + : null, + o = this.subscript + ? Nt( + Qt(t.sub(), this.subscript), + t.mathstyle.adjustTo(t.mathstyle.sub()) + ) + : null; + return Yt(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)) + : 'object' == typeof t.generateID && + ((e = t.generateID.overrideID + ? t.generateID.overrideID + : 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 = $.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 Xt(t) { + const e = Nt('​', 'arraycolsep'); + return e.setWidth(t, 'em'), e; + } + function Jt(t, e, i, s) { + const a = []; + for (const o of e) { + const e = Nt(Qt(t, s)); + (e.depth = o.depth), + (e.height = o.height), + a.push(e), + a.push(o.pos - i); + } + return Vt(t, a, 'individualShift'); + } + function Yt(t, e, i, s, a, o, n) { + if (!a && !o) return e; + e = Nt(e); + let r = 0, + l = 0; + a && (r = Math.max(h.bigOpSpacing1, h.bigOpSpacing3 - a.depth)), + o && + (l = Math.max(h.bigOpSpacing2, h.bigOpSpacing4 - o.height)); + let c = null; + if (o && a) { + const n = + h.bigOpSpacing5 + + $.height(o) + + $.depth(o) + + l + + $.depth(e) + + i; + (c = Vt( + t, + [h.bigOpSpacing5, o, l, e, r, a, h.bigOpSpacing5], + 'bottom', + n + )), + c.children[0].setLeft(-s), + c.children[2].setLeft(s); + } else if (o && !a) { + const a = $.height(e) - i; + (c = Vt(t, [h.bigOpSpacing5, o, l, e], 'top', a)), + c.children[0].setLeft(-s); + } else if (!o && a) { + const o = $.depth(e) + i; + (c = Vt(t, [e, r, a, h.bigOpSpacing5], 'bottom', o)), + c.children[1].setLeft(s); + } + return $.makeSpanOfType(n, c, 'op-limits'); + } + function Qt(t, e) { + function i(t) { + return 'mord' === t.type && /[0-9,.]/.test(t.latex); + } + function s(t) { + return 'text' === t.mode; + } + t instanceof _ || (t = new _(t)); + const a = !t.generateID || !t.generateID.groupNumbers; + let o = []; + if (Array.isArray(e)) { + if (0 === e.length) return o; + if (1 === e.length) + (o = e[0].decompose(t)), + o && + a && + e[0].isSelected && + o.forEach(t => t.selected(!0)); + else { + let n = 'none', + r = e[1].type, + l = [], + c = null, + h = !0, + d = null; + for (let p = 0; p < e.length; p++) { + 'mbin' === e[p].type && + (/first|none|mrel|mpunct|mopen|mbin|mop/.test(n) || + /none|mrel|mpunct|mclose/.test(r)) && + (e[p].type = 'mord'), + ('​' === e[p].body && + (e[p].superscript || e[p].subscript)) || + (d = null), + t.generateID.groupNumbers && + c && + ((h && i(e[p])) || (!h && s(e[p]))) && + (t.generateID.overrideID = c); + const m = e[p].decompose(t, d); + if ( + (t.generateID && (t.generateID.overrideID = null), + m) + ) { + const n = [].concat.apply([], m); + (d = n), + t.generateID && + t.generateID.groupNumbers && + ((i(e[p]) || s(e[p])) && + ((c && h === i(e[p])) || + ((h = i(e[p])), (c = e[p].id))), + ((!i(e[p]) && !s(e[p])) || + e[p].superscript || + e[p].subscript) && + c && + (c = null)), + a && e[p].isSelected + ? ((l = l.concat(n)), + l.forEach(t => t.selected(!0))) + : (l.length > 0 && + ((o = [...o, ...l]), (l = [])), + (o = o.concat(n))); + } + (n = e[p].getFinalBaseElement().type), + (r = e[p + 1] + ? e[p + 1].getInitialBaseElement().type + : 'none'); + } + l.length > 0 && ((o = [...o, ...l]), (l = [])); + } + } else + e && + ((o = e.decompose(t)), + o && a && e.isSelected && o.forEach(t => t.selected(!0))); + if (!o || 0 === o.length) return null; + if (t.mathstyle !== t.parentMathstyle) { + const e = + t.mathstyle.sizeMultiplier / + t.parentMathstyle.sizeMultiplier; + for (const t of o) (t.height *= e), (t.depth *= e); + } + if (t.size !== t.parentSize) { + const e = Gt[t.size] / Gt[t.parentSize]; + for (const t of o) (t.height *= e), (t.depth *= e); + } + return o; + } + var te = { + MathAtom: Zt, + decompose: Qt, + makeRoot: function(t, e) { + const i = new Zt((t = t || 'math'), 'root', e || []); + return ( + (0 !== i.body.length && 'first' === i.body[0].type) || + i.body.unshift(new Zt('', 'first')), + i + ); + }, + GREEK_REGEX: Ut, + }; + const ee = { + m0: '#3f3d99', + m1: '#993d71', + m2: '#998b3d', + m3: '#3d9956', + m4: '#3d5a99', + m5: '#993d90', + m6: '#996d3d', + m7: '#43993d', + m8: '#3d7999', + m9: '#843d99', + }, + ie = { + 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 se = 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 = ie[c] || ee[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 && 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 && 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) + ); + }, + ae = function(t) { + let e = t.toUpperCase(); + for (const t in ie) + if (ie[t] === e) { + e = t; + break; + } + for (const t in ee) + if (ee[t] === e) { + e = t; + break; + } + return e; + }, + oe = [ + '#d35d60', + '#7293cb', + '#e1974d', + '#84bb5d', + '#9066a7', + '#aD6a58', + '#f5a4ce', + '#fff590', + '#212121', + '#818787', + '#d4d5d2', + '#ffffff', + ], + ne = [ + '#cc2428', + '#3769b1', + '#da7e30', + '#409852', + '#6b4c9a', + '#922426', + '#e7298a', + '#ffe907', + '#000000', + '#525055', + '#adafaa', + '#ffffff', + ]; + const re = te.MathAtom; + class le { + 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 re(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 = At.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 ce( + n(this.args['?']), + this.parseMode, + null, + this.macros + ); + const t = new re( + 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 se(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); + let e; + return ( + this.skipWhitespace(), + (e = 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')), + e + ); + } + 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 re('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('$$')) return null; + const t = this.get().type, + e = new re('math', 'group'); + (e.mathstyle = '$' === t ? 'textstyle' : 'displaystyle'), + (e.latexOpen = 'textstyle' === e.mathstyle ? '$' : '$$'), + (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 = At.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()), + !c && + 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 re( + 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 re('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 = At.getInfo('\\' + i.value, 'math', this.macros); + o = e + ? [ + new re( + this.parseMode, + e.type, + e.value || i.value, + e.parse + ? e.parse('\\' + i.value, [s, t]) + : null + ), + ] + : [new re(this.parseMode, 'mop', i.value)]; + } else o = this.swapMathList(a); + return (this.style = e), o; + } + scanGroup() { + if (!this.parseToken('{')) return null; + const t = new re(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 re(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 = At.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')) + return null; + const t = this.style; + let e = 'right'; + if (!this.parseCommand('left')) { + if (!this.parseCommand('mleft')) return null; + e = 'mright'; + } + const i = this.scanDelim(); + if (!i) return null; + const s = this.swapMathList([]); + for (; !this.end() && !this.parseCommand(e); ) this.parseAtom(); + this.style = t; + const a = this.scanDelim(), + o = new re(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 re(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})*[^"]*$)/); + for (const e of t) { + const t = se(e); + if (t) (s = s || {}), (s.backgroundcolor = t); + else { + const t = e.match( + /^\s*([0-9.]+)\s*([a-z][a-z])/ + ); + if (t) + (s = s || {}), + (s.padding = m.toEm(t[1], t[2])); + else { + const t = e.match(/^\s*border\s*:\s*(.*)/); + t && ((s = s || {}), (s.border = t[1])); + } + } + } + } else + this.mathList = this.mathList.concat( + this.scanImplicitGroup( + t => 'literal' === t.type && ']' === t.value + ) + ); + this.parseMode = e; + const a = this.swapMathList(i); + return s || a; + } + scanArg(t) { + let e; + if ( + ((t = t && 'auto' !== t ? t : this.parseMode), + this.parseFiller(), + !this.parseToken('{')) + ) { + if ('delim' === t) return this.scanDelim() || '.'; + if (/^(math|text)$/.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 re('text', '', ' ', this.style)); + else if ('placeholder' === t.type) + (e = new re(this.parseMode, 'placeholder', t.value)), + (e.captureSelection = !0); + else if ('command' === t.type) { + if ('placeholder' === t.value) + (e = new re( + this.parseMode, + 'placeholder', + this.scanArg('string'), + this.style + )), + (e.captureSelection = !0); + else if ('char' === t.value) { + let t = Math.floor(this.scanNumber(!0)); + (!isFinite(t) || t < 0 || t > 1114111) && (t = 10067), + (e = new re( + this.parseMode, + 'math' === this.parseMode ? 'mord' : '', + String.fromCodePoint(t) + )), + (e.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 re( + this.parseMode, + 'spacing', + null, + this.style + )), + (e.width = i)), + (e.latex = '\\' + t.value); + } else if (((e = this.scanMacro(t.value)), !e)) { + const i = At.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 re( + this.parseMode, + 'placeholder', + t.placeholder + ); + (e.captureSelection = !0), s.push([e]); + } else s.push(this.placeholder()); + 'math' !== t.type && + 'string' == typeof e && + (a += e); + } + if (i && !i.infix) { + if (i.parse) { + const a = i.parse('\\' + t.value, s); + if (a.type) + e = new re( + this.parseMode, + i.type, + o ? this.scanArg(o) : null, + { ...this.style, ...a } + ); + else { + const t = this.parseMode; + if ( + (a.mode && + ((this.parseMode = a.mode), + delete a.mode), + o) + ) { + const t = this.style; + (this.style = { ...this.style, ...a }), + (e = this.scanArg(o)), + (this.style = t); + } else this.style = { ...this.style, ...a }; + this.parseMode = t; + } + } else { + const s = { ...this.style }; + i.baseFontFamily && + (s.baseFontFamily = i.baseFontFamily), + (e = new re( + this.parseMode, + i.type || 'mop', + i.value || t.value, + s + )), + i.skipBoundary && (e.skipBoundary = !0); + } + if ( + e && + !/^(llap|rlap|class|cssId)$/.test(t.value) && + ((e.latex = '\\' + t.value), + a && (e.latex += '{' + a + '}'), + e.isFunction && this.smartFence) + ) { + const t = this.scanSmartFence(); + t && (e = [e, t]); + } + } + i || + ((e = new re( + this.parseMode, + 'error', + '\\' + t.value + )), + (e.latex = '\\' + t.value)); + } + } else if ('literal' === t.type) { + const i = At.getInfo(t.value, this.parseMode, this.macros); + if (i) { + const s = { ...this.style }; + i.baseFontFamily && + (s.baseFontFamily = i.baseFontFamily), + (e = new re( + this.parseMode, + i.type, + i.value || t.value, + s + )), + i.isFunction && (e.isFunction = !0); + } else + e = new re( + this.parseMode, + 'math' === this.parseMode ? 'mord' : '', + t.value, + this.style + ); + if ( + ((e.latex = At.matchCodepoint( + this.parseMode, + t.value.codePointAt(0) + )), + i && i.isFunction && this.smartFence) + ) { + const t = this.scanSmartFence(); + t && (e = [e, t]); + } + } else if ('#' === t.type) + if ('?' === t.value) e = this.placeholder(); + else if (this.args) + if ( + ((e = this.args[t.value] || null), + Array.isArray(e) && 1 === e.length) + ) + e = e[0]; + else if (Array.isArray(e)) { + const t = new re(this.parseMode, 'group'); + (t.body = e), (e = t); + } else e = this.placeholder(); + return e; + } + scanMacro(t) { + if (!this.macros || !this.macros[t]) return null; + const e = {}; + let i, + s = 0; + 'string' == typeof this.macros[t] + ? ((i = this.macros[t]), + /(^|[^\\])#1/.test(i) && (s = 1), + /(^|[^\\])#2/.test(i) && (s = 2), + /(^|[^\\])#3/.test(i) && (s = 3), + /(^|[^\\])#4/.test(i) && (s = 4), + /(^|[^\\])#5/.test(i) && (s = 5), + /(^|[^\\])#6/.test(i) && (s = 6), + /(^|[^\\])#7/.test(i) && (s = 7), + /(^|[^\\])#8/.test(i) && (s = 8), + /(^|[^\\])#9/.test(i) && (s = 9)) + : ((i = this.macros[t].def), + (s = this.macros[t].args || 0)); + for (let t = 1; t <= s; t++) e[t] = this.scanArg(); + this.args && + 'string' == typeof this.args['?'] && + (e['?'] = this.args['?']); + const a = new re( + this.parseMode, + 'group', + ce(n(i), this.parseMode, e, this.macros) + ); + (a.captureSelection = !0), (a.latex = '\\' + t); + let o = ''; + for (let t = 1; t <= s; t++) { + if (((o += '{'), Array.isArray(e[t]))) + for (let i = 0; i < e[t].length; i++) + o += e[t][i].latex; + o += '}'; + } + return (a.latex += o || ''), a; + } + parseAtom() { + let t = + this.scanEnvironment() || + this.scanModeShift() || + this.scanModeSet() || + this.scanGroup() || + this.scanLeftRight(); + return ( + !(t || (!this.parseSupSub() && !this.parseLimits())) || + (t || (t = this.scanToken()), + Array.isArray(t) + ? (this.mathList = this.mathList.concat(t)) + : t && this.mathList.push(t), + null !== t) + ); + } + } + function ce(t, e, i, s, a) { + let o = []; + const n = new le(t, i, s); + for ( + n.parseMode = e || 'math', a && (n.smartFence = !0); + !n.end(); + + ) + o = o.concat(n.scanImplicitGroup()); + return o; + } + var he = { Parser: le, parseTokens: ce }; + function de(t, e) { + let i = ''; + for (const e of t) i += e.relation + ':' + e.offset + '/'; + return e && (i += '#' + e), i; + } + function pe(t) { + const e = { path: [], extent: 0 }, + i = t.split('#'); + i.length > 1 && (e.extent = parseInt(i[1])); + const s = i[0].split('/'); + for (const t of s) { + const i = t.match(/([^:]*):(.*)/); + i && e.path.push({ relation: i[1], offset: parseInt(i[2]) }); + } + return e; + } + var me = { + pathFromString: pe, + pathToString: de, + pathDistance: function(t, e) { + let i = 0, + s = -1, + a = !1; + for (; !a; ) + (s += 1), + (a = s >= t.length || s >= e.length), + (a = + a || + !( + t[s].relation === e[s].relation && + t[s].offset === e[s].offset + )); + return ( + (i = + s === t.length && s === e.length + ? 0 + : s + 1 === t.length && + s + 1 === e.length && + t[s].relation === e[s].relation + ? 1 + : 2), + i + ); + }, + pathCommonAncestor: function(t, e) { + const i = [], + s = Math.min(t.length - 1, e.length - 1); + let a = 0; + for ( + ; + a <= s && + t[a].relation === e[a].relation && + t[a].offset === e[a].offset; + + ) + i.push(t[a]), (a += 1); + return i; + }, + clone: function(t) { + return pe(de(t)).path; + }, + }; + const ue = { + 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', + 'math:Shift-Tab': 'moveToPreviousPlaceholder', + 'math:Shift-F8': 'moveToPreviousPlaceholder', + 'text:Tab': 'moveToNextPlaceholder', + 'text:F8': 'moveToNextPlaceholder', + 'text:Shift-Tab': 'moveToPreviousPlaceholder', + 'text:Shift-F8': 'moveToPreviousPlaceholder', + '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: !0 }], + 'command:Tab': ['complete', { acceptSuggestion: !0 }], + 'command:Return': 'complete', + 'command:Enter': 'complete', + 'command:Shift-Esc': ['complete', { discard: !0 }], + 'command:Down': 'nextSuggestion', + 'ios:command:Tab': 'nextSuggestion', + 'command:Up': 'previousSuggestion', + '!mac:Ctrl-KeyA': 'selectAll', + 'mac:Meta-KeyA': 'selectAll', + Cut: 'cut', + Copy: 'copy', + Paste: 'paste', + Clear: 'delete', + '!mac:Ctrl-KeyZ': 'undo', + 'mac:Meta-KeyZ': 'undo', + Undo: 'undo', + '!mac:Ctrl-KeyY': 'redo', + 'mac:Meta-Shift-KeyY': 'redo', + '!mac:Ctrl-Shift-KeyZ': 'redo', + 'mac:Meta-Shift-KeyZ': 'redo', + Redo: 'redo', + EraseEof: 'deleteToGroupEnd', + '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', '”', ''], + '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', + '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'], + 'math:Alt-Digit6': ['insert', '\\wedge'], + 'math:Alt-Shift-Digit6': ['insert', '\\vee'], + 'math:Alt-Digit9': ['insert', '('], + 'math:Alt-Digit0': ['insert', ')'], + 'math:Alt-Shift-Backslash': ['insert', '|'], + 'math:Alt-Backslash': ['insert', '\\backslash'], + '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', '\\/'], + 'Alt-Shift-KeyK': 'toggleKeystrokeCaption', + 'Alt-Space': 'toggleVirtualKeyboard', + 'mac:Ctrl-Meta-Up': [ + 'speak', + 'parent', + { withHighlighting: !1 }, + ], + '!mac:Ctrl-Alt-Up': [ + 'speak', + 'parent', + { withHighlighting: !1 }, + ], + 'mac:Ctrl-Meta-Down': [ + 'speak', + 'all', + { withHighlighting: !1 }, + ], + '!mac:Ctrl-Alt-Down': [ + 'speak', + 'all', + { withHighlighting: !1 }, + ], + 'mac:Ctrl-Meta-Left': [ + 'speak', + 'left', + { withHighlighting: !1 }, + ], + '!mac:Ctrl-Alt-Left': [ + 'speak', + 'left', + { withHighlighting: !1 }, + ], + 'mac:Ctrl-Meta-Right': [ + 'speak', + 'right', + { withHighlighting: !1 }, + ], + '!mac:Ctrl-Alt-Right': [ + 'speak', + 'right', + { withHighlighting: !1 }, + ], + '!mac:Ctrl-Alt-Period': [ + 'speak', + 'selection', + { withHighlighting: !1 }, + ], + 'mac:Ctrl-Meta-Period': [ + 'speak', + 'selection', + { withHighlighting: !1 }, + ], + 'mac:Ctrl-Meta-Shift-Up': [ + 'speak', + 'parent', + { withHighlighting: !0 }, + ], + '!mac:Ctrl-Alt-Shift-Up': [ + 'speak', + 'parent', + { withHighlighting: !0 }, + ], + 'mac:Ctrl-Meta-Shift-Down': [ + 'speak', + 'all', + { withHighlighting: !0 }, + ], + '!mac:Ctrl-Alt-Shift-Down': [ + 'speak', + 'all', + { withHighlighting: !0 }, + ], + 'mac:Ctrl-Meta-Shift-Left': [ + 'speak', + 'left', + { withHighlighting: !0 }, + ], + '!mac:Ctrl-Alt-Shift-Left': [ + 'speak', + 'left', + { withHighlighting: !0 }, + ], + 'mac:Ctrl-Meta-Shift-Right': [ + 'speak', + 'right', + { withHighlighting: !0 }, + ], + '!mac:Ctrl-Alt-Shift-Right': [ + 'speak', + 'right', + { withHighlighting: !0 }, + ], + '!mac:Ctrl-Alt-Shift-Period': [ + 'speak', + 'selection', + { withHighlighting: !0 }, + ], + 'mac:Ctrl-Meta-Shift-Period': [ + 'speak', + 'selection', + { withHighlighting: !0 }, + ], + }, + fe = { + '\\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', + '\\~': '~', + }, + ge = { + "''": { mode: 'math', value: '^{\\doubleprime}' }, + alpha: '\\alpha', + delta: '\\delta', + Delta: '\\Delta', + pi: { mode: 'math', value: '\\pi' }, + 'pi ': { mode: 'text', value: '\\pi ' }, + Pi: { mode: 'math', value: '\\Pi' }, + theta: '\\theta', + Theta: '\\Theta', + 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' }, + '∞': '\\infty', + oo: { + mode: 'math', + after: + 'nothing+digit+frac+surd+binop+relop+punct+array+openfence+closefence+space', + value: '\\infty', + }, + '∑': { mode: 'math', value: '\\sum' }, + sum: { mode: 'math', value: '\\sum_{#?}^{#?}' }, + prod: { mode: 'math', value: '\\prod_{#?}^{#?}' }, + sqrt: { mode: 'math', value: '\\sqrt' }, + '∆': { mode: 'math', value: '\\differentialD' }, + '∂': { mode: 'math', value: '\\differentialD' }, + 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_{#?}' }, + dx: '\\differentialD x', + dy: '\\differentialD y', + dt: '\\differentialD t', + AA: { mode: 'math', value: '\\forall' }, + EE: { mode: 'math', value: '\\exists' }, + '!EE': { mode: 'math', value: '\\nexists' }, + '&&': { mode: 'math', value: '\\land' }, + 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' }, + NN: '\\N', + ZZ: '\\Z', + QQ: '\\Q', + RR: '\\R', + CC: '\\C', + PP: '\\P', + xx: '\\times', + '+-': '\\pm', + '!=': '\\ne', + '>=': '\\ge', + '<=': '\\le', + '<<': '\\ll', + '>>': '\\gg', + '~~': '\\approx', + '≈': '\\approx', + '?=': '\\questeq', + '÷': '\\div', + '¬': '\\neg', + ':=': '\\coloneq', + '::': '\\Colon', + '(:': '\\langle', + ':)': '\\rangle', + 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', + 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', + forall: '\\forall', + exists: { mode: 'math', value: '\\exists' }, + '!exists': { mode: 'math', value: '\\nexists' }, + ':.': { mode: 'math', value: '\\therefore' }, + 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}' }, + mm: { + mode: 'math', + after: 'nothing+digit', + value: '\\operatorname{mm}', + }, + cm: { + mode: 'math', + after: 'nothing+digit', + value: '\\operatorname{cm}', + }, + km: { + mode: 'math', + after: 'nothing+digit', + value: '\\operatorname{km}', + }, + kg: { + mode: 'math', + after: 'nothing+digit', + value: '\\operatorname{kg}', + }, + '...': '\\ldots', + '+...': '+\\cdots', + '-...': '-\\cdots', + '->...': '\\to\\cdots', + '->': '\\to', + '|->': '\\mapsto', + '--\x3e': '\\longrightarrow', + '<--': '\\longleftarrow', + '=>': '\\Rightarrow', + '==>': '\\Longrightarrow', + '<=>': '\\Leftrightarrow', + '<->': '\\leftrightarrow', + '(.)': '\\odot', + '(+)': '\\oplus', + '(/)': '\\oslash', + '(*)': '\\otimes', + '(-)': '\\ominus', + '||': '\\Vert', + '{': '\\{', + '}': '\\}', + '*': '\\cdot', + }; + function ye(t, e, i) { + if (!i) return i; + if ('string' == typeof i) return i; + if ('string' == typeof i.mode && i.mode !== t) return null; + if (!e) return i ? i.value : void 0; + let s = !1, + a = !1, + o = !1, + n = !1, + r = !1, + l = !1, + c = !1, + h = !1, + d = !1, + p = !1, + m = !1, + u = !1, + f = !1, + g = !1, + y = e[e.length - 1], + b = e.length - 1; + for (; y && /msubsup|placeholder/.test(y.type); ) + (b -= 1), (y = e[b]); + return ( + (s = !y || 'first' === y.type), + y && + ((f = 'text' === y.mode), + (a = !f && 'mord' === y.type && At.LETTER.test(y.body)), + (o = !f && 'mord' === y.type && /[0-9]+$/.test(y.body)), + (n = !f && y.isFunction), + (r = 'genfrac' === y.type), + (l = 'surd' === y.type), + (c = 'mbin' === y.type), + (h = 'mrel' === y.type), + (d = 'mpunct' === y.type || 'minner' === y.type), + (p = y.array), + (m = 'mopen' === y.type), + (u = 'mclose' === y.type || 'leftright' === y.type), + (g = 'space' === y.type)), + void 0 !== i.after + ? (/nothing/.test(i.after) && s) || + (/letter/.test(i.after) && a) || + (/digit/.test(i.after) && o) || + (/function/.test(i.after) && n) || + (/frac/.test(i.after) && r) || + (/surd/.test(i.after) && l) || + (/binop/.test(i.after) && c) || + (/relop/.test(i.after) && h) || + (/punct/.test(i.after) && d) || + (/array/.test(i.after) && p) || + (/openfence/.test(i.after) && m) || + (/closefence/.test(i.after) && u) || + (/text/.test(i.after) && f) || + (/space/.test(i.after) && g) + ? i.value + : null + : i.value + ); + } + function be(t) { + let e = 'other'; + return ( + navigator && + navigator.platform && + navigator.userAgent && + (/^(mac)/i.test(navigator.platform) + ? (e = 'mac') + : /^(win)/i.test(navigator.platform) + ? (e = 'win') + : /(android)/i.test(navigator.userAgent) + ? (e = 'android') + : /(iphone)/i.test(navigator.userAgent) || + /(ipod)/i.test(navigator.userAgent) || + /(ipad)/i.test(navigator.userAgent) + ? (e = 'ios') + : /\bCrOS\b/i.test(navigator.userAgent) && + (e = 'chromeos')), + e === t ? t : '!' + t + ); + } + function xe(t) { + let e = t; + return ( + Array.isArray(e) && + e.length > 0 && + (e = e[0] + '(' + e.slice(1).join('') + ')'), + e + ); + } + function ke(t, e) { + let i = ''; + Array.isArray(t) || (t = [t]); + for (const s of t) { + let t; + const a = s.match(/(^[^:]*):/), + o = a ? a[1] : ''; + if ( + o === be('mac') || + o === be('win') || + o === be('ios') || + o === be('android') || + o === be('chromeos') || + o === be('other') + ) { + const e = s.match(/:([^:]*)$/); + t = e ? e[1] : s; + } else if ( + ![ + 'mac', + '!mac', + 'win', + '!win', + 'ios', + '!ios', + 'android', + '!android', + 'chromeos', + '!chromeos', + 'other', + '!other', + ].includes(o) + ) { + const e = s.match(/:([^:]*)$/); + t = e ? e[1] : s; + } + if (t) { + const s = 'mac' === be('mac') || 'ios' === be('ios'), + a = t.length > 1 ? t.split('-') : [t]; + let o = ''; + for (const t of a) + !s && + o.length > 0 && + (o += '+'), + 'Key' === t.substr(0, 3) + ? (o += t.substr(3, 1)) + : 'Digit' === t.substr(0, 5) + ? (o += t.substr(5, 1)) + : (o += + { + Meta: s ? '⌘' : 'command', + Shift: s ? '⇧' : 'shift', + Alt: s ? '⌥' : 'alt', + Ctrl: s ? '⌃' : 'control', + '\n': s ? '⏎' : 'return', + Return: s ? '⏎' : 'return', + Enter: s ? '⌤' : 'enter', + Tab: s ? '⇥' : 'tab', + Esc: 'esc', + Backspace: s ? '⌫' : 'backspace', + Del: s ? '⌦' : 'del', + PageUp: s ? '⇞' : 'page up', + PageDown: s ? '⇟' : 'page down', + Home: s ? '⤒' : 'home', + End: s ? '⤓' : 'end', + Spacebar: 'space', + Semicolon: ';', + Period: '.', + Comma: ',', + Minus: '-', + Equal: '=', + Quote: "'", + BracketLeft: '[', + BracketRight: ']', + Backslash: '\\', + IntlBackslash: '\\', + Backquote: '`', + Slash: '/', + NumpadMultiply: '* 🔢', + NumpadDivide: '/ 🔢', + NumpadSubtract: '- 🔢', + NumpadAdd: '+ 🔢', + NumpadDecimal: '. 🔢', + NumpadComma: ', 🔢', + Help: 'help', + Left: '⇠', + Up: '⇡', + Right: '⇢', + Down: '⇣', + }[t] || t); + i.length > 0 && (i += e || ' or '), (i += o); + } + } + return i; + } + var ve = { + KEYBOARD_SHORTCUTS: ue, + INLINE_SHORTCUTS: ge, + stringify: ke, + startsWithString: function(t, e) { + const i = []; + for (let s = 0; s <= t.length - 1; s++) { + const a = t.substring(s); + (e && e.overrideDefaultInlineShortcuts) || + Object.keys(ge).forEach(t => { + t.startsWith(a) && !i.includes(t) && i.push(t); + }); + const o = e && e.inlineShortcuts ? e.inlineShortcuts : null; + o && + Object.keys(o).forEach(t => { + t.startsWith(a) && i.push(t); + }); + } + return i; + }, + forString: function(t, e, i, s) { + let a = ''; + (s && s.overrideDefaultInlineShortcuts) || + (a = ye(t, e, ge[i])); + const o = s && s.inlineShortcuts ? s.inlineShortcuts : null; + let n; + return o && (n = ye(t, e, o[i])), n || a; + }, + selectorForKeystroke: function(t, e) { + for (const i of [ + be('mac') + ':' + t + ':' + e, + be('win') + ':' + t + ':' + e, + be('ios') + ':' + t + ':' + e, + be('android') + ':' + t + ':' + e, + be('chromeos') + ':' + t + ':' + e, + be('other') + ':' + t + ':' + e, + be('mac') + ':' + e, + be('win') + ':' + e, + be('ios') + ':' + e, + be('android') + ':' + e, + be('chromeos') + ':' + e, + t + ':' + e, + e, + ]) + if (ue[i]) return ue[i]; + return ''; + }, + forCommand: function(t) { + let e = []; + if ('string' == typeof t) { + const i = fe[t]; + Array.isArray(i) ? (e = i.slice()) : i && e.push(i); + } + t = xe(t); + const i = new RegExp( + '^' + + t + .replace('\\', '\\\\') + .replace('|', '\\|') + .replace('*', '\\*') + .replace('$', '\\$') + .replace('^', '\\^') + + '([^*a-zA-Z]|$)' + ); + return ( + Object.keys(ue).forEach(t => { + if (i.test(xe(ue[t]))) { + const i = t.match(/:([^:]*)$/); + i && e.push(i[1]); + } + }), + ke(e) + ); + }, + }; + function we(t, e) { + (this.root = te.makeRoot()), + (this.path = [{ relation: 'body', offset: 0 }]), + (this.extent = 0), + (this.config = t ? { ...t } : {}), + (this.target = e), + (this.suppressChangeNotifications = !1); + } + function Se(t) { + const e = Object.assign(new we(t.config, t.target), t); + return (e.path = me.clone(t.path)), e; + } + function Ae(t, e) { + let i = 0; + for (let s = 0; s < e.row; s++) + for (let e = 0; e < t[s].length; e++) i += 1; + return (i += e.col), i; + } + function Me(t, e) { + if ('string' == typeof e) { + const t = e.match(/cell([0-9]*)$/); + t && (e = parseInt(t[1])); + } + const i = { row: 0, col: 0 }; + for (; e > 0; ) + (i.col += 1), + (!t[i.row] || i.col >= t[i.row].length) && + ((i.col = 0), (i.row += 1)), + (e -= 1); + return i; + } + function Ce(t, e) { + let i; + return ( + 'object' != typeof e && (e = Me(t, e)), + Array.isArray(t[e.row]) && (i = t[e.row][e.col] || null), + !i || + (0 !== i.length && 'first' === i[0].type) || + i.unshift(Be()), + i + ); + } + function _e(t) { + let e = 0, + i = 0, + s = 1; + for (const e of t) (i += 1), e.length > s && (s = e.length); + return (e = i * s), e; + } + function Te(t, e, i) { + if (!t) return []; + e || (e = ','); + let s, + a = []; + for (let o of t) + o && o.length > 0 && 'first' === o[0].type && (o = o.slice(1)), + o && + o.length > 0 && + (s + ? a.push(s) + : (s = new te.MathAtom('math', 'mpunct', e, i)), + (a = a.concat(o))); + return a; + } + function Le(t, e, i) { + const s = { ...e }; + if (((s.row += i), s.row < 0)) { + if (((s.col += i), (s.row = t.length - 1), s.col < 0)) + return null; + for (; s.row >= 0 && !Ce(t, s); ) s.row -= 1; + if (s.row < 0) return null; + } else if (s.row >= t.length) { + for (s.col += i, s.row = 0; s.row < t.length && !Ce(t, s); ) + s.row += 1; + if (s.row > t.length - 1) return null; + } + return s; + } + function Fe(t) { + return ( + !!t && + (('mord' === t.type && /[0-9.]/.test(t.body)) || + ('mpunct' === t.type && ',' === t.body)) + ); + } + function De(t, e) { + if (!t) return !1; + if (Array.isArray(t)) { + for (const i of t) if (De(i, e)) return !0; + } else { + if (t === e) return !0; + if ( + [ + 'body', + 'numer', + 'denom', + 'index', + 'subscript', + 'superscript', + 'underscript', + 'overscript', + ].some(function(i) { + return i === e || De(t[i], e); + }) + ) + return !0; + if (t.array) + for (let i = _e(t.array); i >= 0; i--) + if (De(Ce(t.array, i), e)) return !0; + } + return !1; + } + function ze(t) { + if (t) + return ( + 1 === t.length && + 'leftright' === t[0].type && + '(' === t[0].leftDelim && + (t = t[0].body), + t + ); + } + function Ee(t, e) { + if (!t) return ''; + if (t.length <= 1) return t; + if (!e || 'ASCIIMath' !== e.format) { + if (t.startsWith('$$') && t.endsWith('$$')) + return t.substring(2, t.length - 2); + if (t.startsWith('$') && t.endsWith('$')) + return t.substring(1, t.length - 1); + if (((t = t.replace(/\\\\([^\s\n])/g, '\\$1')), /\\/.test(t))) + return t; + } + return qe( + (t = (t = (t = (t = (t = (t = t.replace( + /\u2061/gu, + '' + )).replace(/\u3016/gu, '{')).replace(/\u3017/gu, '}')).replace( + /([^\\])sinx/g, + '$1\\sin x' + )).replace(/([^\\])cosx/g, '$1\\cos x ')).replace( + /\u2013/g, + '-' + )), + e + ); + } + function qe(t, e) { + if (!t) return ''; + let i, + s = !1; + if ( + (s || + ('^' !== t[0] && '_' !== t[0]) || + ((i = Pe(t.substr(1), { ...e, noWrap: !0 })), + (t = t[0] + '{' + i.match + '}'), + (t += qe(i.rest, e)), + (s = !0)), + s || + ((i = t.match(/^(sqrt|\u221a)(.*)/)), + i && + ((i = Pe(i[2], { ...e, noWrap: !0 })), + (t = '\\sqrt{' + i.match + '}'), + (t += qe(i.rest, e)), + (s = !0))), + s || + ((i = t.match(/^(\\cbrt|\u221b)(.*)/)), + i && + ((i = Pe(i[2], { ...e, noWrap: !0 })), + (t = '\\sqrt[3]{' + i.match + '}'), + (t += qe(i.rest, e)), + (s = !0))), + s || + ((i = t.match(/^abs(.*)/)), + i && + ((i = Pe(i[1], { ...e, noWrap: !0 })), + (t = '\\left|' + i.match + '\\right|'), + (t += qe(i.rest, e)), + (s = !0))), + s || + ((i = t.match(/^["”“](.*?)["”“](.*)/)), + i && + ((t = '\\text{' + i[1] + '}'), + (t += qe(i[2], e)), + (s = !0))), + s || + ((i = t.match(/^([^a-zA-Z({[_^\\\s"]+)(.*)/)), + i && ((t = Ie(i[1], e)), (t += qe(i[2], e)), (s = !0))), + !s && + /^(f|g|h)[^a-zA-Z]/.test(t) && + ((i = Pe(t.substring(1), { ...e, noWrap: !0 })), + (t = + '(' === t[1] + ? t[0] + '\\mleft(' + i.match + '\\mright)' + : t[0] + i.match), + (t += qe(i.rest, e)), + (s = !0)), + s || + ((i = t.match(/^([a-zA-Z]+)(.*)/)), + i && ((t = Ie(i[1], e)), (t += qe(i[2], e)), (s = !0))), + !s) + ) + if ( + ((i = Pe(t, { ...e, noWrap: !0 })), + i.match && '/' === i.rest[0]) + ) { + const a = Pe(i.rest.substr(1), { ...e, noWrap: !0 }); + a.match && + (t = + '\\frac{' + + i.match + + '}{' + + a.match + + '}' + + qe(a.rest, e)), + (s = !0); + } else + i.match && + ((t = + '(' === t[0] + ? '\\left(' + + i.match + + '\\right)' + + qe(i.rest, e) + : i.match + qe(i.rest, e)), + (s = !0)); + return ( + s || + ((i = t.match(/^(\s+)(.*)$/)), + i && ((t = ' ' + qe(i[2], e)), (s = !0))), + t + ); + } + function Pe(t, e) { + let i = '', + s = (t = t.trim()), + a = t.charAt(0), + o = { '(': ')', '{': '}', '[': ']' }[a]; + if (o) { + let n = 1, + r = 1; + for (; r < t.length && n > 0; ) + t[r] === a && n++, t[r] === o && n--, r++; + 0 === n + ? (e.noWrap && '(' === a + ? (i = qe(t.substring(1, r - 1), e)) + : ('{' === a && + '}' === o && + ((a = '\\{'), (o = '\\}')), + (i = + '\\left' + + a + + qe(t.substring(1, r - 1), e) + + '\\right' + + o)), + (s = t.substring(r))) + : ((i = t.substring(1, r)), (s = '')); + } else { + let a = t.match(/^([a-zA-Z]+)/); + if (a) { + let i = ve.forString('math', null, t, e); + if (i) + return ( + (i = i.replace('_{#?}', '')), + (i = i.replace('^{#?}', '')), + { match: i, rest: t.substring(i.length) } + ); + } + if (((a = t.match(/^([a-zA-Z])/)), a)) + return { match: a[1], rest: t.substring(1) }; + if (((a = t.match(/^(-)?\d+(\.\d*)?/)), a)) + return { match: a[0], rest: t.substring(a[0].length) }; + /^\\(left|right)/.test(t) || + ((a = t.match(/^(\\[a-zA-Z]+)/)), + a && ((s = t.substring(a[1].length)), (i = a[1]))); + } + return { match: i, rest: s }; + } + function Ie(t, e) { + let i = ve.forString('math', null, t, e); + return ( + i + ? ((i = i.replace('_{#?}', '')), + (i = i.replace('^{#?}', '')), + (i += ' ')) + : (i = t), + i + ); + } + function Be() { + return new te.MathAtom('', 'first'); + } + (we.prototype._announce = function(t, e, i) { + 'function' == typeof this.config.onAnnounce && + this.config.onAnnounce(this.target, t, e, i); + }), + (we.prototype.filter = function(t, e) { + e = e < 0 ? -1 : 1; + const i = [], + s = new we(); + (s.path = me.clone(this.path)), + (s.extent = this.extent), + (s.root = this.root), + e >= 0 + ? s.collapseForward() + : (s.collapseBackward(), s.move(1)); + const a = s.anchor(); + do { + t.bind(s)(s.path, s.anchor()) && i.push(s.toString()), + e >= 0 + ? s.next({ iterateAll: !0 }) + : s.previous({ iterateAll: !0 }); + } while (a !== s.anchor()); + return i; + }), + (we.prototype.forEach = function(t) { + this.root.forEach(t); + }), + (we.prototype.forEachSelected = function(t, e) { + (e = e || {}).recursive = void 0 !== e.recursive && e.recursive; + const i = this.siblings(), + s = this.startOffset() + 1, + a = this.endOffset() + 1; + if (e.recursive) + for (let e = s; e < a; e++) + i[e] && 'first' !== i[e].type && i[e].forEach(t); + else + for (let e = s; e < a; e++) + i[e] && 'first' !== i[e].type && t(i[e]); + }), + (we.prototype.toString = function() { + return me.pathToString(this.path, this.extent); + }), + (we.prototype.adjustPlaceholder = function() { + const t = this.siblings(); + if (t && t.length <= 1) { + let e; + const i = this.relation(); + if ( + ('numer' === i + ? (e = 'numerator') + : 'denom' === i + ? (e = 'denominator') + : 'surd' === this.parent().type && 'body' === i + ? (e = 'radicand') + : 'overunder' === this.parent().type && 'body' === i + ? (e = 'base') + : ('underscript' !== i && 'overscript' !== i) || + (e = 'annotation'), + e) + ) { + const e = [ + new te.MathAtom( + 'math', + 'placeholder', + '⬚', + this.anchorStyle() + ), + ]; + Array.prototype.splice.apply(t, [1, 0].concat(e)); + } + } + }), + (we.prototype.selectionWillChange = function() { + 'function' != typeof this.config.onSelectionWillChange || + this.suppressChangeNotifications || + this.config.onSelectionWillChange(this.target); + }), + (we.prototype.selectionDidChange = function() { + 'function' != typeof this.config.onSelectionDidChange || + this.suppressChangeNotifications || + this.config.onSelectionDidChange(this.target); + }), + (we.prototype.contentWillChange = function() { + 'function' != typeof this.config.onContentWillChange || + this.suppressChangeNotifications || + this.config.onContentWillChange(this.target); + }), + (we.prototype.contentDidChange = function() { + 'function' != typeof this.config.onContentDidChange || + this.suppressChangeNotifications || + this.config.onContentDidChange(this.target); + }), + (we.prototype.setPath = function(t, e) { + if ('string' == typeof t) t = me.pathFromString(t); + else if (Array.isArray(t)) { + const i = me.clone(t), + s = this.path; + (this.path = i), + 0 === e && + 'placeholder' === this.anchor().type && + ((i[i.length - 1].offset = 0), (e = 1)), + (t = { path: i, extent: e || 0 }), + (this.path = s); + } + const i = 0 !== me.pathDistance(this.path, t.path), + s = t.extent !== this.extent; + return ( + (i || s) && + (i && this.adjustPlaceholder(), + this.selectionWillChange(), + (this.path = me.clone(t.path)), + this.siblings().length < this.anchorOffset() + ? ((this.path = [{ relation: 'body', offset: 0 }]), + (this.extent = 0)) + : this.setExtent(t.extent), + this.selectionDidChange()), + i || s + ); + }), + (we.prototype.wordBoundary = function(t, e) { + e = e < 0 ? -1 : 1; + const i = new we(); + (i.path = me.clone(t)), (i.root = this.root); + let s = 0; + for ( + ; + i.sibling(s) && + 'text' === i.sibling(s).mode && + At.LETTER_AND_DIGITS.test(i.sibling(s).body); + + ) + s += e; + return ( + i.sibling(s) || (s -= e), + (i.path[i.path.length - 1].offset += s), + i.path + ); + }), + (we.prototype.wordBoundaryOffset = function(t, e) { + e = e < 0 ? -1 : 1; + const i = this.siblings(); + if (!i[t]) return t; + if ('text' !== i[t].mode) return t; + let s; + if (At.LETTER_AND_DIGITS.test(i[t].body)) { + let a, + o = t; + do { + (a = + 'text' === i[o].mode && + At.LETTER_AND_DIGITS.test(i[o].body)), + (o += e); + } while (i[o] && a); + s = i[o] ? o - 2 * e : o - e; + } else if (/\s/.test(i[t].body)) { + let a = t; + for ( + ; + i[a] && 'text' === i[a].mode && /\s/.test(i[a].body); + + ) + a += e; + if (i[a]) { + let t = !0; + do { + (t = 'text' === i[a].mode && !/\s/.test(i[a].body)), + (a += e); + } while (i[a] && t); + s = i[a] ? a - 2 * e : a - e; + } else s = a - e; + } else { + let a = t; + for ( + ; + i[a] && 'text' === i[a].mode && !/\s/.test(i[a].body); + + ) + a += e; + s = i[a] ? a : a - e; + let o = !0; + for (; i[a] && o; ) + (o = 'text' === i[a].mode && /\s/.test(i[a].body)), + o && (s = a), + (a += e); + s = i[a] ? a - 2 * e : a - e; + } + return s - (e > 0 ? 0 : 1); + }), + (we.prototype.setRange = function(t, e, i) { + i = i || {}; + const s = me.pathDistance(t, e); + if (0 === s) + return i.extendToWordBoundary + ? ((t = this.wordBoundary(t, -1)), + (e = this.wordBoundary(e, 1)), + this.setRange(t, e)) + : this.setPath(me.clone(t), 0); + if (1 === s) { + const s = e[e.length - 1].offset - t[t.length - 1].offset; + return i.extendToWordBoundary + ? ((t = this.wordBoundary(t, s < 0 ? 1 : -1)), + (e = this.wordBoundary(e, s < 0 ? -1 : 1)), + this.setRange(t, e)) + : this.setPath(me.clone(t), s); + } + let a = me.pathCommonAncestor(t, e); + const o = a.length; + if ( + t.length === o || + e.length === o || + t[o].relation !== e[o].relation + ) + return this.setPath(a, -1); + a.push(t[o]), (a = me.clone(a)); + let n = e[o].offset - t[o].offset + 1; + return ( + n <= 0 + ? e.length > o + 1 + ? ((a[o].relation = e[o].relation), + (a[o].offset = e[o].offset), + (a[a.length - 1].offset -= 1), + (n = 2 - n)) + : ((a[o].relation = e[o].relation), + (a[o].offset = e[o].offset), + (n = 1 - n)) + : e.length <= t.length + ? (a[a.length - 1].offset -= 1) + : e.length > t.length && (a[o].offset -= 1), + this.setPath(a, n) + ); + }), + (we.prototype.ancestor = function(t) { + if (t > this.path.length) return null; + let e = this.root; + for (let i = 0; i < this.path.length - t; i++) { + const t = this.path[i]; + if (e.array) e = Ce(e.array, t.relation)[t.offset]; + else { + if (!e[t.relation]) return null; + { + (0 !== e[t.relation].length && + 'first' === e[t.relation][0].type) || + e[t.relation].unshift(Be()); + const i = Math.min( + t.offset, + e[t.relation].length - 1 + ); + e = e[t.relation][i]; + } + } + } + return e; + }), + (we.prototype.anchor = function() { + if (this.parent().array) + return Ce(this.parent().array, this.relation())[ + this.anchorOffset() + ]; + const t = this.siblings(); + return t[Math.min(t.length - 1, this.anchorOffset())]; + }), + (we.prototype.parent = function() { + return this.ancestor(1); + }), + (we.prototype.relation = function() { + return this.path.length > 0 + ? this.path[this.path.length - 1].relation + : ''; + }), + (we.prototype.anchorOffset = function() { + return this.path.length > 0 + ? this.path[this.path.length - 1].offset + : 0; + }), + (we.prototype.focusOffset = function() { + return this.path.length > 0 + ? this.path[this.path.length - 1].offset + this.extent + : 0; + }), + (we.prototype.startOffset = function() { + return Math.min(this.focusOffset(), this.anchorOffset()); + }), + (we.prototype.endOffset = function() { + return Math.max(this.focusOffset(), this.anchorOffset()); + }), + (we.prototype.insertFirstAtom = function() { + this.siblings(); + }), + (we.prototype.siblings = function() { + if (0 === this.path.length) return []; + let t; + return ( + this.parent().array + ? (t = Ce(this.parent().array, this.relation())) + : ((t = this.parent()[this.relation()] || []), + 'string' == typeof t && (t = [])), + (0 !== t.length && 'first' === t[0].type) || + t.unshift(Be()), + t + ); + }), + (we.prototype.sibling = function(t) { + return this.siblings()[this.startOffset() + t]; + }), + (we.prototype.isCollapsed = function() { + return 0 === this.extent; + }), + (we.prototype.setExtent = function(t) { + this.extent = t; + }), + (we.prototype.collapseForward = function() { + return ( + 0 !== this.extent && + (this.setSelection(this.endOffset()), !0) + ); + }), + (we.prototype.collapseBackward = function() { + return ( + 0 !== this.extent && + (this.setSelection(this.startOffset()), !0) + ); + }), + (we.prototype.selectGroup_ = function() { + const t = this.siblings(); + if ('text' === this.anchorMode()) { + let e = this.startOffset(), + i = this.endOffset(); + for ( + ; + t[e] && + 'text' === t[e].mode && + At.LETTER_AND_DIGITS.test(t[e].body); + + ) + e -= 1; + for ( + ; + t[i] && + 'text' === t[i].mode && + At.LETTER_AND_DIGITS.test(t[i].body); + + ) + i += 1; + if (((i -= 1), e >= i)) + return void this.setSelection(this.endOffset() - 1, 1); + this.setSelection(e, i - e); + } else if ( + 'mord' === this.sibling(0).type && + /[0-9,.]/.test(this.sibling(0).body) + ) { + let e = this.startOffset(), + i = this.endOffset(); + for (; Fe(t[e]); ) e -= 1; + for (; Fe(t[i]); ) i += 1; + (i -= 1), this.setSelection(e, i - e); + } else this.setSelection(0, 'end'); + }), + (we.prototype.selectAll_ = function() { + (this.path = [{ relation: 'body', offset: 0 }]), + this.setSelection(0, 'end'); + }), + (we.prototype.deleteAll_ = function() { + this.selectAll_(), this.delete_(); + }), + (we.prototype.contains = function(t) { + if (this.isCollapsed()) return !1; + const e = this.siblings(), + i = this.startOffset(), + s = this.endOffset(); + for (let a = i; a < s; a++) if (De(e[a], t)) return !0; + return !1; + }), + (we.prototype.getSelectedAtoms = function() { + if (this.isCollapsed()) return null; + const t = [], + e = this.siblings(), + i = this.startOffset() + 1, + s = this.endOffset() + 1; + for (let a = i; a < s; a++) + e[a] && 'first' !== e[a].type && t.push(e[a]); + return t; + }), + (we.prototype.commandOffsets = function() { + const t = this.siblings(); + if (t.length <= 1) return null; + let e = Math.min(this.endOffset(), t.length - 1); + if ('command' !== t[e].type) return null; + for (; e > 0 && 'command' === t[e].type; ) e -= 1; + let i = this.startOffset() + 1; + for (; i <= t.length - 1 && 'command' === t[i].type; ) i += 1; + return i > e ? { start: e + 1, end: i } : null; + }), + (we.prototype.extractCommandStringAroundInsertionPoint = function( + t + ) { + let e = ''; + const i = this.commandOffsets(); + if (i) { + const s = t ? this.anchorOffset() + 1 : i.end, + a = this.siblings(); + for (let t = i.start; t < s; t++) e += a[t].body || ''; + } + return e; + }), + (we.prototype.decorateCommandStringAroundInsertionPoint = function( + t + ) { + const e = this.commandOffsets(); + if (e) { + const i = this.siblings(); + for (let s = e.start; s < e.end; s++) i[s].error = t; + } + }), + (we.prototype.commitCommandStringBeforeInsertionPoint = function() { + const t = this.commandOffsets(); + if (t) { + const e = this.siblings(), + i = this.anchorOffset() + 1; + for (let s = t.start; s < i; s++) + e[s] && (e[s].suggestion = !1); + } + }), + (we.prototype.spliceCommandStringAroundInsertionPoint = function( + t + ) { + const e = this.commandOffsets(); + if (e) { + if ((this.contentWillChange(), t)) { + Array.prototype.splice.apply( + this.siblings(), + [e.start, e.end - e.start].concat(t) + ); + let i = []; + for (const e of t) + i = i.concat( + e.filter(t => 'placeholder' === t.type) + ); + this.setExtent(0), + (this.path[this.path.length - 1].offset = + e.start - 1), + (0 !== i.length && this.leap(1, !1)) || + this.setSelection(e.start + t.length - 1); + } else + this.siblings().splice(e.start, e.end - e.start), + this.setSelection(e.start - 1, 0); + this.contentDidChange(); + } + }), + (we.prototype.removeCommandString = function() { + this.contentWillChange(); + const t = this.suppressChangeNotifications; + (this.suppressChangeNotifications = !0), + (function t(e) { + if (e) + if (Array.isArray(e)) + for (let i = e.length - 1; i >= 0; i--) + 'command' === e[i].type + ? e.splice(i, 1) + : t(e[i]); + else if ( + (t(e.body), + t(e.superscript), + t(e.subscript), + t(e.underscript), + t(e.overscript), + t(e.numer), + t(e.denom), + t(e.index), + e.array) + ) + for (let i = _e(e.array); i >= 0; i--) + t(Ce(e.array, i)); + })(this.root.body), + (this.suppressChangeNotifications = t), + this.contentDidChange(); + }), + (we.prototype.extractArgBeforeInsertionPoint = function() { + const t = this.siblings(); + if (t.length <= 1) return []; + const e = []; + let i = this.startOffset(); + if ('text' === t[i].mode) + for (; i >= 1 && 'text' === t[i].mode; ) + e.unshift(t[i]), i--; + else + for ( + ; + i >= 1 && + /^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type); + + ) + e.unshift(t[i]), i--; + return e; + }), + (we.prototype.setSelection = function(t, e, i) { + (t = t || 0), (e = e || 0); + const s = this.path[this.path.length - 1].relation; + i || (i = s); + const a = this.parent(); + if (!a && 'body' !== i) return !1; + const o = i.startsWith('cell'); + if ((!o && !a[i]) || (o && !a.array)) return !1; + const n = i !== s; + this.path[this.path.length - 1].relation = i; + const r = this.siblings().length; + this.path[this.path.length - 1].relation = s; + const l = this.extent; + 'end' === e ? (e = r - t - 1) : 'start' === e && (e = -t), + this.setExtent(e); + const c = this.extent !== l; + this.setExtent(l), + t < 0 && (t = r + t), + (t = Math.max(0, Math.min(t, r - 1))); + const h = this.path[this.path.length - 1].offset; + return ( + (n || h !== t || c) && + (n && this.adjustPlaceholder(), + this.selectionWillChange(), + (this.path[this.path.length - 1].relation = i), + (this.path[this.path.length - 1].offset = t), + this.setExtent(e), + this.selectionDidChange()), + !0 + ); + }), + (we.prototype.next = function(t) { + t = t || {}; + const e = { + body: 'numer', + numer: 'denom', + denom: 'index', + index: 'overscript', + overscript: 'underscript', + underscript: 'subscript', + subscript: 'superscript', + }; + if (this.anchorOffset() === this.siblings().length - 1) { + this.adjustPlaceholder(); + let i = e[this.relation()]; + const s = this.parent(); + for (; i && !s[i]; ) i = e[i]; + if (i) return void this.setSelection(0, 0, i); + if (this.parent().array) { + const t = _e(this.parent().array); + let e = + parseInt( + this.relation().match(/cell([0-9]*)$/)[1] + ) + 1; + for (; e < t; ) { + if ( + Ce(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 = _e(i.array); + for (; !s && t < e; ) + Ce(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]; + } + } + }), + (we.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 ( + Ce(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 = _e(i.array); + let s = e - 1; + for (; !t && s < e; ) + Ce(i.array, s) && (t = 'cell' + s.toString()), + (s -= 1); + return ( + (s += 1), + this.path.push({ + relation: t, + offset: Ce(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); + }), + (we.prototype.move = function(t, e) { + const i = (e = e || { extend: !1 }).extend || !1; + if ((this.removeSuggestion(), i)) this.extend(t, e); + else { + const e = Se(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); + } + }), + (we.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 = Me(this.parent().array, i); + (e = Le(this.parent().array, e, -1)), + e && Ce(e) + ? ((this.path[this.path.length - 1].relation = + 'cell' + Ae(this.parent().array, e)), + this.setSelection(this.anchorOffset()), + this._announce('moveUp')) + : this.move(-1, t); + } else this._announce('line'); + }), + (we.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 = Me(this.parent().array, i); + (e = Le(this.parent().array, e, 1)), + e && Ce(e) + ? ((this.path[this.path.length - 1].relation = + 'cell' + Ae(this.parent().array, e)), + this.setSelection(this.anchorOffset()), + this._announce('moveDown')) + : this.move(1, t); + } else this._announce('line'); + }), + (we.prototype.extend = function(t) { + let e = this.path[this.path.length - 1].offset, + i = 0; + const s = Se(this); + i = this.extent + t; + const a = e + i; + 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); + }), + (we.prototype.skip = function(t, e) { + const i = (e = e || { extend: !1 }).extend || !1; + t = t < 0 ? -1 : 1; + const s = Se(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)), n < 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); + } + }), + (we.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); + }), + (we.prototype.jumpToMathFieldBoundary = function(t, e) { + const i = (e = e || { extend: !1 }).extend || !1; + t = (t = t || 1) < 0 ? -1 : 1; + const s = Se(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); + }), + (we.prototype.leap = function(t, e) { + (t = (t = t || 1) < 0 ? -1 : 1), (e = e || !0); + const i = this.suppressChangeNotifications; + this.suppressChangeNotifications = !0; + const s = Se(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 (this.suppressChangeNotifications = i), !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 + ); + }), + (we.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; + }), + (we.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; + }), + (we.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]; 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 = ze(t.numer)), + (t.denom = ze(t.denom))), + t.superscript && + (this.simplifyParen(t.superscript), + (t.superscript = ze(t.superscript))), + t.subscript && + (this.simplifyParen(t.subscript), + (t.subscript = ze(t.subscript))), + t.underscript && + (this.simplifyParen(t.underscript), + (t.underscript = ze(t.underscript))), + t.overscript && + (this.simplifyParen(t.overscript), + (t.overscript = ze(t.overscript))), + t.index && + (this.simplifyParen(t.index), + (t.index = ze(t.index))), + 'surd' === t.type + ? (this.simplifyParen(t.body), + (t.body = ze(t.body))) + : t.body && + Array.isArray(t.body) && + this.simplifyParen(t.body), + t.array) + ) + for (let e = _e(t.array); e >= 0; e--) + this.simplifyParen(Ce(t.array, e)); + }); + } + }), + (we.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 r = [this.getSelectedAtoms()]; + void 0 !== e.placeholder && (r['?'] = 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 l = this.siblings(), + c = this.startOffset(); + if ( + (c + 1 < l.length && + l[c + 1] && + 'placeholder' === l[c + 1].type + ? this.delete_(1) + : c > 0 && + l[c] && + 'placeholder' === l[c].type && + this.delete_(-1), + 'math' === a && 'ASCIIMath' === e.format) + ) + (t = Ee(t, { ...this.config, format: 'ASCIIMath' })), + (o = he.parseTokens(n(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) + At.COMMAND_MODE_CHARACTERS.test(e) && + o.push( + new te.MathAtom('command', 'command', e) + ); + } else + '' === t + ? (o = [ + new te.MathAtom('command', 'command', '\\'), + ]) + : ((t = Ee(t, this.config)), + r[0] + ? (t = t.replace(/(^|[^\\])#@/g, '$1#0')) + : /(^|[^\\])#@/.test(t) + ? ((t = t.replace(/(^|[^\\])#@/g, '$1#0')), + (r[0] = this.extractArgBeforeInsertionPoint()), + this._deleteAtoms(-r[0].length), + Array.isArray(r[0]) && + 0 === r[0].length && + (r[0] = void 0)) + : (t = t.replace(/(^|[^\\])#@/g, '$1#?')), + (o = he.parseTokens( + n(t), + a, + r, + e.macros, + e.smartFence + )), + this.simplifyParen(o)); + else + 'latex' === e.format + ? (o = he.parseTokens( + n(t), + a, + r, + e.macros, + e.smartFence + )) + : ('text' !== a && 'text' !== e.format) || + ((t = (t = (t = (t = (t = (t = (t = (t = (t = (t = (t = t.replace( + /\\/g, + '\\textbackslash ' + )).replace(/#/g, '\\#')).replace( + /\$/g, + '\\$' + )).replace(/%/g, '\\%')).replace( + /&/g, + '\\&' + )).replace(/_/g, '\\_')).replace( + /{/g, + '\\textbraceleft ' + )).replace(/}/g, '\\textbraceright ')).replace( + /\^/g, + '\\textasciicircum ' + )).replace(/~/g, '\\textasciitilde ')).replace( + /£/g, + '\\textsterling ' + )), + (o = he.parseTokens(n(t), 'text', r, 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 h = this.parent(); + if ( + (this.config.removeExtraneousParentheses && + h && + 'leftright' === h.type && + '(' === h.leftDelim && + (function(t) { + return ( + 0 === t.length || + (1 === t.length && 'first' === t[0].type) + ); + })(h.body) && + 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); + }), + (we.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 = At.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; + if ( + (Object.keys(At.RIGHT_DELIM).forEach(e => { + t === At.RIGHT_DELIM[e] && (a = e); + }), + 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; + }), + (we.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); + }), + (we.prototype.removeSuggestion = function() { + const t = this.siblings(); + for (let e = t.length - 1; e >= 0; e--) + t[e].suggestion && t.splice(e, 1); + }), + (we.prototype.insertSuggestion = function(t, e) { + this.removeSuggestion(); + const i = [], + s = t.substr(e); + for (const t of s) { + const e = new te.MathAtom('command', 'command', t); + (e.suggestion = !0), i.push(e); + } + Array.prototype.splice.apply( + this.siblings(), + [this.anchorOffset() + 1, 0].concat(i) + ); + }), + (we.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)); + }), + (we.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++; + }), + (we.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 && !Ce(t, e); ) e.row += 1; + return Ce(t, e) ? 'cell' + Ae(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 te.MathAtom( + 'math', + 'mpunct', + e[0], + void 0 + )), + (a = a.concat(Te(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 = Me(t, this.relation()); + if (0 === e.col) { + const i = Le(t, e, -1); + (i.col = t[i.row].length - 1), + (this.path[this.path.length - 1].relation = + 'cell' + Ae(t, i)); + const s = t[i.row][i.col].length, + a = Te(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 = Ce(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' + Ae(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 if ('numer' === this.relation()) { + 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: numerator'); + } else this.move(1), this.delete(-1); + } else { + const t = this.startOffset() + 1, + e = this.endOffset() + 1; + this._announce('deleted', null, i.slice(t, e)), + i.splice(t, e - t), + this.setSelection(t - 1); + } + (this.suppressChangeNotifications = e), + this.selectionDidChange(), + this.contentDidChange(); + }), + (we.prototype.moveToNextPlaceholder_ = function() { + this.leap(1); + }), + (we.prototype.moveToPreviousPlaceholder_ = function() { + this.leap(-1); + }), + (we.prototype.moveToNextChar_ = function() { + this.move(1); + }), + (we.prototype.moveToPreviousChar_ = function() { + this.move(-1); + }), + (we.prototype.moveUp_ = function() { + this.up(); + }), + (we.prototype.moveDown_ = function() { + this.down(); + }), + (we.prototype.moveToNextWord_ = function() { + this.skip(1); + }), + (we.prototype.moveToPreviousWord_ = function() { + this.skip(-1); + }), + (we.prototype.moveToGroupStart_ = function() { + this.setSelection(0); + }), + (we.prototype.moveToGroupEnd_ = function() { + this.setSelection(-1); + }), + (we.prototype.moveToMathFieldStart_ = function() { + this.jumpToMathFieldBoundary(-1); + }), + (we.prototype.moveToMathFieldEnd_ = function() { + this.jumpToMathFieldBoundary(1); + }), + (we.prototype.deleteNextChar_ = function() { + this.delete_(1); + }), + (we.prototype.deletePreviousChar_ = function() { + this.delete_(-1); + }), + (we.prototype.deleteNextWord_ = function() { + this.extendToNextBoundary(), this.delete_(); + }), + (we.prototype.deletePreviousWord_ = function() { + this.extendToPreviousBoundary(), this.delete_(); + }), + (we.prototype.deleteToGroupStart_ = function() { + this.extendToGroupStart(), this.delete_(); + }), + (we.prototype.deleteToGroupEnd_ = function() { + this.extendToMathFieldStart(), this.delete_(); + }), + (we.prototype.deleteToMathFieldEnd_ = function() { + this.extendToMathFieldEnd(), this.delete_(); + }), + (we.prototype.transpose_ = function() {}), + (we.prototype.extendToNextChar_ = function() { + this.extend(1); + }), + (we.prototype.extendToPreviousChar_ = function() { + this.extend(-1); + }), + (we.prototype.extendToNextWord_ = function() { + this.skip(1, { extend: !0 }); + }), + (we.prototype.extendToPreviousWord_ = function() { + this.skip(-1, { extend: !0 }); + }), + (we.prototype.extendUp_ = function() { + this.up({ extend: !0 }); + }), + (we.prototype.extendDown_ = function() { + this.down({ extend: !0 }); + }), + (we.prototype.extendToNextBoundary_ = function() { + this.skip(1, { extend: !0 }); + }), + (we.prototype.extendToPreviousBoundary_ = function() { + this.skip(-1, { extend: !0 }); + }), + (we.prototype.extendToGroupStart_ = function() { + this.setExtent(-this.anchorOffset()); + }), + (we.prototype.extendToGroupEnd_ = function() { + this.setExtent(this.siblings().length - this.anchorOffset()); + }), + (we.prototype.extendToMathFieldStart_ = function() { + this.jumpToMathFieldBoundary(-1, { extend: !0 }); + }), + (we.prototype.extendToMathFieldEnd_ = function() { + this.jumpToMathFieldBoundary(1, { extend: !0 }); + }), + (we.prototype.moveToSuperscript_ = function() { + if ((this.collapseForward(), !this.anchor().superscript)) + if (this.anchor().subscript) + this.anchor().superscript = [Be()]; + else { + const t = this.sibling(1); + t && t.superscript + ? (this.path[this.path.length - 1].offset += 1) + : t && t.subscript + ? ((this.path[this.path.length - 1].offset += 1), + (this.anchor().superscript = [Be()])) + : ('limits' !== this.anchor().limits && + (this.siblings().splice( + this.anchorOffset() + 1, + 0, + new te.MathAtom( + this.parent().anchorMode, + 'msubsup', + '​', + this.anchorStyle() + ) + ), + (this.path[ + this.path.length - 1 + ].offset += 1)), + (this.anchor().superscript = [Be()])); + } + this.path.push({ relation: 'superscript', offset: 0 }), + this.selectGroup_(); + }), + (we.prototype.moveToSubscript_ = function() { + if ((this.collapseForward(), !this.anchor().subscript)) + if (this.anchor().superscript) + this.anchor().subscript = [Be()]; + else { + const t = this.sibling(1); + t && t.subscript + ? (this.path[this.path.length - 1].offset += 1) + : t && t.superscript + ? ((this.path[this.path.length - 1].offset += 1), + (this.anchor().subscript = [Be()])) + : ('limits' !== this.anchor().limits && + (this.siblings().splice( + this.anchorOffset() + 1, + 0, + new te.MathAtom( + this.parent().anchorMode, + 'msubsup', + '​', + this.anchorStyle() + ) + ), + (this.path[ + this.path.length - 1 + ].offset += 1)), + (this.anchor().subscript = [Be()])); + } + this.path.push({ relation: 'subscript', offset: 0 }), + this.selectGroup_(); + }), + (we.prototype.moveToOpposite_ = function() { + const t = { + superscript: 'subscript', + subscript: 'superscript', + denom: 'numer', + numer: 'denom', + }[this.relation()]; + t || this.moveToSuperscript_(), + this.parent()[t] || (this.parent()[t] = [Be()]), + this.setSelection(0, 'end', t); + }), + (we.prototype.moveBeforeParent_ = function() { + this.path.length > 1 + ? (this.path.pop(), + this.setSelection(this.anchorOffset() - 1)) + : this._announce('plonk'); + }), + (we.prototype.moveAfterParent_ = function() { + if (this.path.length > 1) { + const t = Se(this); + this.path.pop(), + this.setExtent(0), + this._announce('move', t); + } else this._announce('plonk'); + }), + (we.prototype._addCell = function(t) { + const e = this.parent(); + if (e && 'array' === e.type && Array.isArray(e.array)) { + const i = this.relation(); + if (e.array) { + const s = Me(e.array, i); + 'after row' === t || 'before row' === t + ? ((s.col = 0), + (s.row = s.row + ('after row' === t ? 1 : 0)), + e.array.splice(s.row, 0, [[]])) + : ((s.col += 'after column' === t ? 1 : 0), + e.array[s.row].splice(s.col, 0, [])); + const a = Ae(e.array, s); + this.path.pop(), + this.path.push({ + relation: 'cell' + a.toString(), + offset: 0, + }), + this.insertFirstAtom(); + } + } + }), + (we.prototype.convertParentToArray = function() { + const t = this.parent(); + if ('leftright' === t.type) { + t.type = 'array'; + const e = + { + '(': 'pmatrix', + '\\lbrack': 'bmatrix', + '\\lbrace': 'cases', + }[t.leftDelim] || 'matrix', + i = At.getEnvironmentInfo(e), + s = [[t.body]]; + i.parser && Object.assign(t, i.parser(e, [], s)), + (t.tabularMode = i.tabular), + (t.parseMode = this.anchorMode()), + (t.env = { ...i }), + (t.env.name = e), + (t.array = s), + (t.rowGaps = [0]), + delete t.body, + (this.path[this.path.length - 1].relation = 'cell0'); + } + }), + (we.prototype.addRowAfter_ = function() { + this.contentWillChange(), + this.convertParentToArray(), + this._addCell('after row'), + this.contentDidChange(); + }), + (we.prototype.addRowBefore_ = function() { + this.contentWillChange(), + this.convertParentToArray(), + this._addCell('before row'), + this.contentDidChange(); + }), + (we.prototype.addColumnAfter_ = function() { + this.contentWillChange(), + this.convertParentToArray(), + this._addCell('after column'), + this.contentDidChange(); + }), + (we.prototype.addColumnBefore_ = function() { + this.contentWillChange(), + this.convertParentToArray(), + this._addCell('before column'), + this.contentDidChange(); + }), + (we.prototype._applyStyle = function(t) { + if (this.isCollapsed()) return; + const e = this; + function i(t, i) { + let s = !0; + return ( + e.forEachSelected( + e => { + s = s && e[t] === i; + }, + { recursive: !0 } + ), + s + ); + } + t.color && i('color', t.color) && (t.color = 'none'), + t.backgroundColor && + i('backgroundColor', t.backgroundColor) && + (t.backgroundColor = 'none'), + t.fontFamily && + i('fontFamily', t.fontFamily) && + (t.fontFamily = 'none'), + t.series && (t.fontSeries = t.series), + t.fontSeries && + i('fontSeries', t.fontSeries) && + (t.fontSeries = 'auto'), + t.shape && (t.fontShape = t.shape), + t.fontShape && + i('fontShape', t.fontShape) && + (t.fontShape = 'auto'), + t.size && (t.fontSize = t.size), + t.fontSize && + i('fontSize', t.fontSize) && + (t.fontSize = 'size5'), + this.contentWillChange(), + this.forEachSelected(e => e.applyStyle(t), { + recursive: !0, + }), + this.contentDidChange(); + }); + var Oe = { EditableMathlist: we, parseMathString: Ee }; + const Re = { + '#': '#', + '|': '|', + '[': 'BracketLeft', + ']': 'BracketRight', + '-': 'Minus', + '+': 'Plus', + '=': 'Equal', + '/': 'Slash', + '\\': 'Backslash', + }, + Ke = { + Space: 'Spacebar', + ' ': 'Spacebar', + Escape: 'Esc', + ArrowLeft: 'Left', + ArrowUp: 'Up', + ArrowRight: 'Right', + ArrowDown: 'Down', + Delete: 'Del', + }, + Ne = { + 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', + '|': 'Shift-Backslash', + '?': 'Shift-Slash', + ' ': 'Spacebar', + }; + function $e(t) { + let e, + i = !0; + 'Unidentified' === t.key && + t.target && + (e = Ne[t.target.value] || t.target.value), + e || + (Re[t.key] ? ((e = Re[t.key]), (i = !1)) : (e = Ke[t.key]), + e || (e = Ne[t.key.toLowerCase()])), + !e && t.code && (e = Ke[t.code] || t.code); + const s = []; + return ( + t.ctrlKey && s.push('Ctrl'), + t.metaKey && s.push('Meta'), + i && t.altKey && s.push('Alt'), + i && t.shiftKey && s.push('Shift'), + 0 === s.length ? e : (s.push(e), s.join('-')) + ); + } + function We(t, e) { + let i, + s = null, + a = null, + o = !1, + n = !1; + function r(t) { + clearTimeout(i), + (i = setTimeout(function() { + clearTimeout(i), t(); + })); + } + function l() { + if ( + (function(t) { + return t.selectionStart !== t.selectionEnd; + })(t) + ) + return; + const i = t.value; + (t.value = ''), i.length > 0 && e.typedText(i); + } + const c = t || e.container; + c.addEventListener( + 'keydown', + function(i) { + if ( + ('function' == typeof e.allowDeadKey && + e.allowDeadKey()) || + ('Dead' !== i.key && + 'Unidentified' !== i.key && + 229 !== i.keyCode) + ) + n = !1; + else { + (n = !0), (o = !1); + const i = e.blur, + s = e.focus; + (e.blur = null), + (e.focus = null), + t.blur(), + t.focus(), + (e.blur = i), + (e.focus = s); + } + return ( + !( + !o && + 'CapsLock' !== i.code && + !/(Control|Meta|Alt|Shift)(Right|Left)/.test(i.code) + ) || ((s = i), (a = null), e.keystroke($e(i), i)) + ); + }, + !0 + ), + c.addEventListener( + 'keypress', + function(t) { + o || (s && a && e.keystroke($e(s), s), (a = t), r(l)); + }, + !0 + ), + c.addEventListener( + 'keyup', + function() { + o || !s || a || l(); + }, + !0 + ), + c.addEventListener( + 'paste', + function() { + t.focus(); + const i = t.value; + (t.value = ''), i.length > 0 && e.paste(i); + }, + !0 + ), + c.addEventListener( + 'copy', + function(t) { + e.copy && e.copy(t); + }, + !0 + ), + c.addEventListener( + 'cut', + function(t) { + e.cut && e.cut(t); + }, + !0 + ), + c.addEventListener( + 'blur', + function() { + (s = null), (a = null), e.blur && e.blur(); + }, + !0 + ), + c.addEventListener( + 'focus', + function() { + e.focus && e.focus(); + }, + !0 + ), + c.addEventListener( + 'compositionstart', + () => { + o = !0; + }, + !0 + ), + c.addEventListener( + 'compositionend', + () => { + (o = !1), r(l); + }, + !0 + ), + c.addEventListener('input', () => { + if (n) { + const i = e.blur, + s = e.focus; + (e.blur = null), + (e.focus = null), + t.blur(), + t.focus(), + (e.blur = i), + (e.focus = s), + (n = !1), + (o = !1), + r(l); + } else o || r(l); + }); + } + var He = { + delegateKeyboardEvents: We, + select: We.select, + keyboardEventToString: $e, + eventToChar: function(t) { + if (!t) return ''; + let e; + return ( + 'Unidentified' === t.key && + t.target && + (e = t.target.value), + (e = e || t.key || t.code), + /^(Return|Enter|Tab|Escape|Delete|PageUp|PageDown|Home|End|Help|ArrowLeft|ArrowRight|ArrowUp|ArrowDown)$/.test( + e + ) && (e = ''), + e + ); + }, + charToEvent: function(t) { + return { + key: t, + metaKey: !1, + ctrlKey: !1, + altKey: !1, + shiftKey: !1, + }; + }, + }; + const Ve = { + '\\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', + '\\top': '{\\color{red}P}\\top', + '\\bot': '{\\color{#0F0}P}\\bot', + '\\mid': 'P(p\\mid q)', + '\\rlap': '\\rlap{x}o', + '\\llap': 'o\\llap{/}', + }, + Ue = { + '\\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
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Ye(this, this.body, !0) + : this.latex || Ye(this, this.body, !1)), + this.cssClass && (i += '}')), + this.cssId && (i += '}'), + (i += + this.latexClose || + (this.cssId || this.cssClass ? '' : '}')); + break; + case 'array': + if ( + ((i += '\\begin{' + this.env.name + '}'), + 'array' === this.env.name) + ) { + if (((i += '{'), this.colFormat)) + for (a = 0; a < this.colFormat.length; a++) + this.colFormat[a].align + ? (i += this.colFormat[a].align) + : this.colFormat[a].rule && (i += '|'); + i += '}'; + } + for (s = 0; s < this.array.length; s++) { + for (e = 0; e < this.array[s].length; e++) + e > 0 && (i += ' & '), + (i += Ye(this, this.array[s][e], t)); + s < this.array.length - 1 && (i += ' \\\\ '); + } + i += '\\end{' + this.env.name + '}'; + break; + case 'root': + i = Ye(this, this.body, t); + break; + case 'genfrac': + /^(choose|atop|over)$/.test(this.body) + ? ((i += '{'), + (i += Ye(this, this.numer, t)), + (i += '\\' + this.body + ' '), + (i += Ye(this, this.denom, t)), + (i += '}')) + : ((i += n), + (i += `{${Ye(this, this.numer, t)}}{${Ye( + this, + this.denom, + t + )}}`)); + break; + case 'surd': + (i += '\\sqrt'), + this.index && + ((i += '['), + (i += Ye(this, this.index, t)), + (i += ']')), + (i += `{${Ye(this, this.body, t)}}`); + break; + case 'leftright': + this.inner + ? ((i += '\\left' + (this.leftDelim || '.')), + this.leftDelim && + this.leftDelim.length > 1 && + (i += ' '), + (i += Ye(this, this.body, t)), + (i += '\\right' + (this.rightDelim || '.')), + this.rightDelim && + this.rightDelim.length > 1 && + (i += ' ')) + : t && '(' === this.leftDelim && ')' === this.rightDelim + ? (i += '(' + Ye(this, this.body, t) + ')') + : ((i += '\\mleft' + (this.leftDelim || '.')), + this.leftDelim && + this.leftDelim.length > 1 && + (i += ' '), + (i += Ye(this, this.body, t)), + (i += '\\mright' + (this.rightDelim || '.')), + this.rightDelim && + this.rightDelim.length > 1 && + (i += ' ')); + break; + case 'delim': + case 'sizeddelim': + i += n + '{' + this.delim + '}'; + break; + case 'rule': + (i += n), + this.shift && (i += `[${Ye(this, this.shift, t)}em]`), + (i += `{${Ye(this, this.width, t)}em}{${Ye( + this, + this.height, + t + )}em}`); + break; + case 'line': + case 'overlap': + case 'accent': + i += `${n}{${Ye(this, this.body, t)}}`; + break; + case 'overunder': + i += `${n}{${Ye( + this, + this.overscript || this.underscript, + t + )}}{${Ye(parent, this.body, t)}}`; + break; + case 'mord': + case 'minner': + case 'mbin': + case 'mrel': + case 'mpunct': + case 'mopen': + case 'mclose': + case 'textord': + case '': + /^\\(mathbin|mathrel|mathopen|mathclose|mathpunct|mathord|mathinner)/.test( + n + ) + ? (i += n + '{' + Ye(this, this.body, t) + '}') + : '\\char"' === n + ? (i += this.latex + ' ') + : '\\unicode' === n + ? ((i += '\\unicode{"'), + (i += ( + '000000' + this.body.charCodeAt(0).toString(16) + ) + .toUpperCase() + .substr(-6)), + (i += '}')) + : (this.latex || 'string' == typeof this.body) && + (this.latex && '\\' === this.latex[0] + ? ((i += this.latex), + /[a-zA-Z0-9]$/.test(this.latex) && (i += ' ')) + : (i += + n || + ('​' !== this.body + ? this.latex || this.body + : ''))); + break; + case 'mop': + '​' !== this.body && + ('\\mathop' === n + ? (i += n + '{' + Ye(this, this.body, t) + '}') + : '\\operatorname' === n + ? (i += n + '{' + Ye(this, this.body, t) + '}') + : this.latex && '\\' === this.latex[0] + ? ((i += this.latex), + /[a-zA-Z0-9]$/.test(this.latex) && (i += ' ')) + : (i += + n || + ('​' !== this.body + ? this.latex || this.body + : ''))), + this.explicitLimits && + ('limits' === this.limits && (i += '\\limits '), + 'nolimits' === this.limits && (i += '\\nolimits ')); + break; + case 'box': + if ('\\bbox' === n) { + if ( + ((i += n), + isFinite(this.padding) || + void 0 !== this.border || + void 0 !== this.backgroundcolor) + ) { + const t = []; + isFinite(this.padding) && + t.push( + Math.floor(100 * this.padding) / 100 + 'em' + ), + this.border && t.push('border:' + this.border), + this.backgroundcolor && + t.push(ae(this.backgroundcolor)), + (i += `[${t.join(',')}]`); + } + i += `{${Ye(this, this.body, t)}}`; + } else + '\\boxed' === n + ? (i += `\\boxed{${Ye(this, this.body, t)}}`) + : ((i += n), + this.framecolor && + (i += `{${ae(this.framecolor)}}`), + this.backgroundcolor && + (i += `{${ae(this.backgroundcolor)}}`), + (i += `{${Ye(this, this.body, t)}}`)); + break; + case 'spacing': + (i += n), + '\\hspace' === n || '\\hspace*' === n + ? ((i += '{'), + this.width + ? (i += this.width + 'em') + : (i += '0em'), + (i += '}')) + : ((i += ' '), + this.width && (i += this.width + 'em ')); + break; + case 'enclose': + if (((i += n), '\\enclose' === n)) { + i += '{'; + let t = ''; + for (const e in this.notation) + Object.prototype.hasOwnProperty.call( + this.notation, + e + ) && + this.notation[e] && + ((i += t + e), (t = ' ')); + i += '}'; + let e = ''; + (t = ''), + this.backgroundcolor && + 'transparent' !== this.backgroundcolor && + ((e += + t + + 'mathbackground="' + + ae(this.backgroundcolor) + + '"'), + (t = ',')), + this.shadow && + 'auto' !== this.shadow && + ((e += t + 'shadow="' + this.shadow + '"'), + (t = ',')), + 1 !== this.strokeWidth || + 'solid' !== this.strokeStyle + ? ((e += t + this.borderStyle), (t = ',')) + : this.strokeColor && + 'currentColor' !== this.strokeColor && + ((e += + t + + 'mathcolor="' + + ae(this.strokeColor) + + '"'), + (t = ',')), + e && (i += `[${e}]`); + } + i += `{${Ye(this, this.body, t)}}`; + break; + case 'mathstyle': + i += '\\' + this.mathstyle + ' '; + break; + case 'space': + i += this.latex; + break; + case 'placeholder': + i += '\\placeholder{' + (this.value || '') + '}'; + break; + case 'first': + case 'command': + case 'msubsup': + break; + case 'error': + i += this.latex; + } + if (this.superscript) { + let e = Ye(this, this.superscript, t); + 1 === e.length + ? ('′' === e + ? (e = '\\prime ') + : '″' === e && (e = '\\doubleprime '), + (i += '^' + e)) + : (i += '^{' + e + '}'); + } + if (this.subscript) { + const e = Ye(this, this.subscript, t); + 1 === e.length ? (i += '_' + e) : (i += '_{' + e + '}'); + } + return i; + }), + (Qe.plural = function(t, e, i) { + (i = i || {}).type = i.type || 'cardinal'; + const s = Qe.locale.substring(0, 2), + a = 'ordinal' === i.type ? Qe.ordinal : Qe.cardinal; + let o, + n = + 'ordinal' === i.type + ? Qe._ordinalPluralCategories.indexOf(a.select(t)) + : Qe._cardinalPluralCategories.indexOf(a.select(t)); + return ( + Qe.strings[Qe.locale] && (o = Qe.strings[Qe.locale][e]), + !o && Qe.strings[s] && (o = Qe.strings[s][e]), + o || + ((o = Qe.strings.en[e]), + o || (o = e), + (n = + 'ordinal' === i.type + ? Qe._ordinalPluralCategories.indexOf( + Qe._ordinalEnglish.select(t) + ) + : Qe._cardinalPluralCategories.indexOf( + Qe._cardinalEnglish.select(t) + ))), + o.split(';')[n] || o.split(';')[0] + ); + }), + (Qe.merge = function(t, e) { + if (t && e) { + const i = Qe._locale; + (Qe.locale = t), + (Qe.strings[t] = { ...Qe.strings[t], ...e }), + (Qe.locale = i); + } else + t && + !e && + ((e = t), + Object.keys(e).forEach(t => Qe.merge(t, e[t]))); + }), + Object.defineProperty(Qe, 'locale', { + set(t) { + (Qe._locale = t), + (Qe._ordinal = null), + (Qe._cardinal = null); + }, + get: () => ( + Qe._locale || + (Qe._locale = + 'undefined' == typeof navigator + ? 'en' + : navigator.language.slice(0, 5)), + Qe._locale + ), + }), + Object.defineProperty(Qe, 'ordinal', { + get: () => ( + Qe._ordinal || + ((Qe._ordinalEnglish = new Intl.PluralRules('en', { + type: 'ordinal', + })), + (Qe._ordinalEnglishPluralCategories = Qe._ordinalEnglish.resolvedOptions().pluralCategories), + (Qe._ordinal = new Intl.PluralRules(Qe.locale, { + type: 'ordinal', + })), + (Qe._ordinalPluralCategories = Qe._ordinal.resolvedOptions().pluralCategories)), + Qe._ordinal + ), + }), + Object.defineProperty(Qe, 'cardinal', { + get: () => ( + Qe._cardinal || + ((Qe._cardinalEnglish = new Intl.PluralRules('en', { + type: 'cardinal', + })), + (Qe._cardinalEnglishPluralCategories = Qe._cardinalEnglish.resolvedOptions().pluralCategories), + (Qe._cardinal = new Intl.PluralRules(Qe.locale, { + type: 'cardinal', + })), + (Qe._cardinaPluralCategories = Qe._ordinal.resolvedOptions().pluralCategories)), + Qe._cardinal + ), + }), + (Qe.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', + }, + el: { + 'keyboard.tooltip.functions': 'συναρτήσεις', + 'keyboard.tooltip.greek': 'ελληνικά γράμματα', + 'keyboard.tooltip.command': 'Λειτουργία εντολών LaTeX', + 'keyboard.tooltip.numeric': 'Αριθμητικός', + 'keyboard.tooltip.roman': 'Σύμβολα και ρωμαϊκά γράμματα', + 'tooltip.copy to clipboard': 'Αντιγραφή στο πρόχειρο', + 'tooltip.redo': 'Ξανακάνω', + 'tooltip.toggle virtual keyboard': + 'Εναλλαγή εικονικού πληκτρολογίου', + 'tooltip.undo': 'Ξεκάνω', + }, + 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', + }, + }); + const ti = { + 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: 'αβγ', + classes: 'tex-math', + layers: ['lower-greek', 'upper-greek'], + }, + functions: { + tooltip: 'keyboard.tooltip.functions', + layer: 'functions', + label: 'f ()', + classes: 'tex', + layers: ['functions'], + }, + command: { + tooltip: 'keyboard.tooltip.command', + command: 'enterCommandMode', + label: "", + layers: [ + 'lower-command', + 'upper-command', + 'symbols-command', + ], + }, + style: { + tooltip: 'keyboard.tooltip.style', + layer: 'style', + label: 'bi𝔹', + }, + }, + ei = { + '\\varphi ': { label: 'Φ', insert: '\\Phi ' }, + '\\varsigma ': { label: 'Σ', insert: '\\Sigma ' }, + '\\epsilon ': { label: 'Ɛ', insert: '{\\char"0190}' }, + '\\rho ': { label: 'Ρ', insert: '{\\char"3A1}' }, + '\\tau ': { label: 'Τ', insert: '{\\char"3A4}' }, + '\\upsilon ': { label: 'Υ', insert: '\\Upsilon ' }, + '\\theta ': { label: 'Θ', insert: '\\Theta ' }, + '\\iota ': { label: 'Ι', insert: '{\\char"399}' }, + '\\omicron ': { label: 'Ο', insert: '{\\char"39F}' }, + '\\pi ': { label: 'Π', insert: '\\Pi ' }, + '\\alpha ': { label: 'Α', insert: '{\\char"391}' }, + '\\sigma ': { label: 'Σ', insert: '\\Sigma ' }, + '\\delta ': { label: 'Δ', insert: '\\Delta ' }, + '\\phi ': { label: 'Φ', insert: '\\Phi ' }, + '\\gamma ': { label: 'Γ', insert: '\\Gamma ' }, + '\\eta ': { label: 'Η', insert: '{\\char"397}' }, + '\\xi ': { label: 'Ξ', insert: '\\Xi ' }, + '\\kappa ': { label: 'Κ', insert: '{\\char"39A}' }, + '\\lambda ': { label: 'Λ', insert: '\\Lambda ' }, + '\\zeta ': { label: 'Ζ', insert: '{\\char"396}' }, + '\\chi ': { label: 'Χ', insert: '{\\char"3A7}' }, + '\\psi ': { label: 'Ψ', insert: '\\Psi ' }, + '\\omega ': { label: 'Ω', insert: '\\Omega ' }, + '\\beta ': { label: 'Β', insert: '{\\char"392}' }, + '\\nu ': { label: 'Ν', insert: '{\\char"39D}' }, + '\\mu ': { label: 'Μ', insert: '{\\char"39C}' }, + }, + ii = { + 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
    ⁻³⧸₁₈ em', + }, + { + latex: '\\unicode{"203A}\\,\\unicode{"2039}', + insert: '\\,', + aside: 'thin space
    ³⧸₁₈ em', + }, + { + latex: '\\unicode{"203A}\\:\\unicode{"2039}', + insert: '\\:', + aside: 'medium space
    ⁴⧸₁₈ em', + }, + { + latex: '\\unicode{"203A}\\;\\unicode{"2039}', + insert: '\\;', + aside: 'thick space
    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: + '', + command: '"deleteAll"', + }, + ], + '->|': [], + }; + let si = {}; + const ai = { + math: + "\n
    \n
      \n
    • x
      • \n
    • n
      • \n
    • \n \n
    • \n
    • e
      • \n
    • i
      • \n
    • \n
    \n
      \n
    • <
      • \n
    • >
      • \n
    • \n \n
    • \n
    • x ²
      • \n
    • x ⬚
      • \n
    • \n
    \n
      \n
    • (
      • \n
    • )
      • \n
    • \n \n
    • \n
      • \n
    • \n
    • ⌫
    \n \n
      \n
      • \n
      • \n
    • \n \n
    • \n \n
    \n
    \n ", + 'lower-roman': + "\n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n
    • ∞≠
      • \n
    • ,
      • \n
    •  
      • \n \n
    \n
    ", + 'upper-roman': + "\n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n
    • ∞≠
      • \n
    • ;
      • \n
    •  
      • \n \n
    \n
    ", + symbols: + "\n
    \n
      \n \n
    • {
      • \n
    • }
      • \n
    • \n
    • ∈
      • \n
    • ∉
      • \n
    • ℜ
      • \n
    • ℑ
      • \n
    • ┌o┐
      • \n
    • ∇
      • \n
    • ∞
      • \n\n
    \n
      \n \n
    • [
      • \n
    • ]
      • \n
    • \n
    • ⊂
      • \n
    • ⊃
      • \n
    • !
      • \n
    • o′
      • \n
    • └o┘
      • \n
    • ∂
      • \n
    • ∅
      • \n\n
    \n
      \n \n
    • ⟨
      • \n
    • ⟩
      • \n
    • \n
    • ⊆
      • \n
    • ⊇
      • \n
    • \n
    • \n
    • \n
    • ∗
      • \n\n
    • ⌫
      • \n
    \n
      \n \n
    • abc
      • \n
    • ⋅
      • \n
    • :
      • \n
    • ∘
      • \n
    • ≈
      • \n
    • ≠
      • \n
    • ±
      • \n \n
    \n
    ", + 'lower-greek': + "\n
    \n
    • φ
      • \n
    • ς
      • \n
    • ϵ
      • \n
    • ρ
      • \n
    • τ
      • \n
    • υ
      • \n
    • θ
      • \n
    • ι
      • \n
    • ο
      • \n
    • π
      • \n
    \n
    • α
      • \n
    • σ
      • \n
    • δ
      • \n
    • ϕ
      • \n
    • γ
      • \n
    • η
      • \n
    • ξ
      • \n
    • κ
      • \n
    • λ
      • \n
    \n
    • ⇧
      • \n
    • ζ
      • \n
    • χ
      • \n
    • ψ
      • \n
    • ω
      • \n
    • β
      • \n
    • ν
      • \n
    • μ
      • \n
    • ⌫
      • \n
    \n
      \n
    •  
      • \n
    • ,
      • \n
    • ε
      • \n
    • ϑ
      • \n
    • ϰ
      • \n
    • ϖ
      • \n
    • ϱ
      • \n \n
    \n
    ", + 'upper-greek': + "\n
    \n
    • Φ
      • \n
    • Σ
      • \n
    • Ɛ
      • \n
    • Ρ
      • \n
    • Τ
      • \n
    • Υ
      • \n
    • Θ
      • \n
    • Ι
      • \n
    • Ο
      • \n
    • Π
    \n
    • Α
      • \n
    • Σ
      • \n
    • Δ
      • \n
    • Φ
      • \n
    • Γ
      • \n
    • Η
      • \n
    • Ξ
      • \n
    • Κ
      • \n
    • Λ
    \n
    • ⇧
      • \n
    • Ζ
      • \n
    • Χ
      • \n
    • Ψ
      • \n
    • Ω
      • \n
    • Β
      • \n
    • Ν
      • \n
    • Μ
      • \n
    • ⌫
    \n
      \n
    •  
      • \n
    • .
      • \n
    •  
      • \n \n
    \n
    ", + 'lower-command': + "\n
    \n
    \n
    \n
    \n
      \n
    • 01#
      • \n
    • {
      • \n
    • }
      • \n
    • ^
      • \n
    • _
      • \n
    •  
      • \n \n
    \n
    ", + 'upper-command': + "\n
    \n
    \n
    \n
    \n
      \n
    • \n
    • [
      • \n
    • ]
      • \n
    • (
      • \n
    • )
      • \n
    •  
      • \n \n
    \n
    ", + 'symbols-command': + "\n
    \n
    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 0
    \n
    • !
    • @
    • #
    • $
    • %
    • ^
    • &
    • *
    • +
    • =
    \n
      \n
    • \\
      • \n
    • |
      • \n
    • /
      • \n
    • `
      • \n
    • ;
      • \n
    • :
      • \n
    • ?
      • \n
    • '
      • \n
    • \"
      • \n
    • ⌫
      • \n
    \n
      \n
    • abc
      • \n
    • <
      • \n
    • >
      • \n
    • ~
      • \n
    • ,
      • \n
    • .
      • \n
    •  
      • \n \n
    \n
    ", + functions: + "\n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • ⌫
    \n
    • \n
    • (
      • \n
    • )
      • \n
    • \n
    • \n
    •  
      • \n \n
    \n
    ", + style: + "\n
    \n
      \n
      • \n
      • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
      \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
      \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
      \n
    • \n
    • \n
    • \n\n
    • \n
    • \n
    • \n
    • \n
    \n
    ", + }; + function oi(t, e, i) { + t = t.replace(/(^|[^\\])#@/g, '$1#?'); + const s = he.parseTokens(n(t), 'math', e, i.config.macros), + a = te.decompose( + { mathstyle: 'displaystyle', macros: i.config.macros }, + s + ), + o = $.makeSpan(a, 'ML__base'), + r = $.makeSpan('', 'ML__strut'); + r.setStyle('height', o.height, 'em'); + const l = $.makeSpan('', 'ML__strut--bottom'); + return ( + l.setStyle('height', o.height + o.depth, 'em'), + l.setStyle('vertical-align', -o.depth, 'em'), + $.makeSpan([r, l, o], 'ML__mathlive').toMarkup() + ); + } + function ni(t, e, i) { + let s = "
    "; + const a = e.replace(/\s+/g, ' ').split(' '); + if (a.length > 1) { + const e = Object.assign( + {}, + ti, + t.config.customVirtualKeyboards || {} + ); + for (const t of a) { + if (!e[t]) break; + (s += "
    '); + } + } + return ( + (s += '
    '), + (s += `\n
    \n
    \n \n
    \n
    \n \n
    \n
    \n \n
    \n
    \n `), + "' + ); + } + function ri(t, e, i) { + for (let s = 0; s < e.length; ++s) { + const a = e[s]; + a.getAttribute('data-latex') + ? (a.innerHTML = oi( + a.getAttribute('data-latex').replace(/"/g, '"'), + { '?': '{\\color{#555}{\\tiny \\char"2B1A}}' }, + t + )) + : '' === a.innerHTML && a.getAttribute('data-insert') + ? (a.innerHTML = oi( + a.getAttribute('data-insert').replace(/"/g, '"'), + { '?': '{\\color{#555}{\\tiny \\char"2B1A}}' }, + t + )) + : a.getAttribute('data-content') && + (a.innerHTML = a + .getAttribute('data-content') + .replace(/"/g, '"')), + a.getAttribute('data-aside') && + (a.innerHTML += + ''), + a.getAttribute('data-classes') && + a.classList.add(a.getAttribute('data-classes')); + let o, + n = a.getAttribute('data-insert'); + if ( + (n && (n = n.replace(/"/g, '"')), + n && + ei[n] && + (a.setAttribute('data-shifted', ei[n].label), + a.setAttribute( + 'data-shifted-command', + JSON.stringify([ + 'insertAndUnshiftKeyboardLayer', + ei[n].insert, + ]) + )), + (o = a.getAttribute('data-command') + ? JSON.parse(a.getAttribute('data-command')) + : a.getAttribute('data-insert') + ? [ + 'insert', + a.getAttribute('data-insert'), + { + focus: !0, + feedback: !0, + mode: 'math', + format: 'auto', + resetStyle: !0, + }, + ] + : a.getAttribute('data-latex') + ? [ + 'insert', + a.getAttribute('data-latex'), + { + focus: !0, + feedback: !0, + mode: 'math', + format: 'auto', + resetStyle: !0, + }, + ] + : [ + 'typedText', + a.getAttribute('data-key') || a.textContent, + { + focus: !0, + feedback: !0, + simulateKeystroke: !0, + }, + ]), + i && (o = [i, o]), + a.getAttribute('data-alt-keys')) + ) { + const t = si[a.getAttribute('data-alt-keys')]; + t && + (o = { + default: o, + pressAndHoldStart: [ + 'showAlternateKeys', + a.getAttribute('data-alt-keys'), + t, + ], + pressAndHoldEnd: 'hideAlternateKeys', + }); + } + t._attachButtonHandlers(a, o); + } + } + function li(t, e) { + const i = { + 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~', + }, + }, + s = i[t.config.virtualKeyboardLayout] + ? i[t.config.virtualKeyboardLayout] + : i.qwerty; + let a, + o = e; + o = o.replace( + //g, + "\n
  • \n \n
    • \n
  • \n \n
    • \n
  • \n
    • " + ); + let n = o.match(/()/); + for (; n; ) { + a = ''; + const t = n[2].match(/[a-zA-Z][a-zA-Z0-9-]*=(['"])(.*?)\1/g), + e = {}; + for (const i of t) { + const t = i.match(/([a-zA-Z][a-zA-Z0-9-]*)=(['"])(.*?)\2/); + e[t[1]] = t[3]; + } + let r = s[e.name]; + if ((r || (r = i.qwerty[e.name]), r)) + for (const t of r) { + let i = e.class || ''; + i && (i = ' ' + i), + '~' === t + ? ((a += + "
  • \'\n data-shifted-command=\'"deleteAll"\'\n data-alt-keys=\'delete\' data-command=\'["performWithFeedback","deletePreviousChar"]\'\n >⌫
    • ')) + : ' ' === t + ? (a += "
  • ") + : '^' === t + ? (a += + "
  • ⇧
    • ") + : '/' === t + ? (a += + "
  • ÷
    • ") + : '*' === t + ? (a += + "
  • ×
    • ") + : '-' === t + ? (a += + "
  • −
    • ") + : /tt/.test(i) + ? (a += + "
  • ' + + t + + '
    • ') + : (a += + "
  • " + + t + + '
    • '); + } + (o = o.replace(new RegExp(n[1] + n[2] + n[3]), a)), + (n = o.match(/()/)); + } + return o; + } + var ci = { + make: function(t, e) { + let i = + '\n\n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n '; + ii['foreground-color'] = []; + for (const t of ne) + ii['foreground-color'].push({ + classes: 'small-button', + content: + '', + command: '["applyStyle",{"color":"' + t + '"}]', + }); + ii['background-color'] = []; + for (const t of oe) + ii['background-color'].push({ + classes: 'small-button', + content: + '', + command: + '["applyStyle",{"backgroundColor":"' + t + '"}]', + }); + (si = { ...ii }), + Object.keys(si).forEach(t => { + si[t] = si[t].slice(); + }); + const s = 'abcdefghijklmnopqrstuvwxyz'; + for (let t = 0; t < 26; t++) { + const e = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'[t]; + si[e] || (si[e] = []), + si[e].unshift({ + latex: '\\mathbb{' + e + '}', + aside: 'blackboard', + insert: '\\mathbb{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathbf{' + e + '}', + aside: 'bold', + insert: '\\mathbf{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathsf{' + e + '}', + aside: 'sans', + insert: '\\mathsf{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathtt{' + e + '}', + aside: 'monospace', + insert: '\\mathtt{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathcal{' + e + '}', + aside: 'script', + insert: '\\mathcal{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathfrak{' + e + '}', + aside: 'fraktur', + insert: '\\mathfrak{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathbb{' + s[t] + '}', + aside: 'blackboard', + insert: '\\mathbb{' + s[t] + '}', + }), + si[e].unshift({ + latex: '\\mathbf{' + s[t] + '}', + aside: 'bold', + insert: '\\mathbf{' + s[t] + '}', + }), + si[e].unshift({ + latex: '\\mathsf{' + s[t] + '}', + aside: 'sans', + insert: '\\mathsf{' + s[t] + '}', + }), + si[e].unshift({ + latex: '\\mathcal{' + s[t] + '}', + aside: 'script', + insert: '\\mathcal{' + s[t] + '}', + }), + si[e].unshift({ + latex: '\\mathfrak{' + s[t] + '}', + aside: 'fraktur', + insert: '\\mathfrak{' + s[t] + '}', + }); + } + for (let t = 0; t <= 26; t++) { + const e = s[t]; + si[e] || (si[e] = []), + si[e].unshift({ + latex: '\\mathsf{' + e + '}', + aside: 'sans', + insert: '\\mathbb{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathbf{' + e + '}', + aside: 'bold', + insert: '\\mathbf{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathtt{' + e + '}', + aside: 'monospace', + insert: '\\mathtt{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathfrak{' + e + '}', + aside: 'fraktur', + insert: '\\mathfrak{' + e + '}', + }); + } + for (let t = 0; t < 10; t++) { + const e = '0123456789'[t]; + si[e] || (si[e] = []), + si[e].unshift({ + latex: '\\mathbf{' + e + '}', + aside: 'bold', + insert: '\\mathbf{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathsf{' + e + '}', + aside: 'sans', + insert: '\\mathsf{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathtt{' + e + '}', + aside: 'monospace', + insert: '\\mathtt{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathcal{' + e + '}', + aside: 'script', + insert: '\\mathcal{' + e + '}', + }), + si[e].unshift({ + latex: '\\mathfrak{' + e + '}', + aside: 'fraktur', + insert: '\\mathfrak{' + e + '}', + }); + } + let a = t.config.virtualKeyboards; + a || (a = 'all'), + (a = a.replace( + /\ball\b/i, + 'numeric roman greek functions command' + )); + const o = Object.assign( + {}, + ai, + t.config.customVirtualKeyboardLayers || {} + ), + n = Object.assign( + {}, + ti, + t.config.customVirtualKeyboards || {} + ), + r = a.replace(/\s+/g, ' ').split(' '); + for (const e of r) { + if (!n[e]) break; + let s = n[e].layers || []; + n[e].layer && s.push(n[e].layer), + (s = Array.from(new Set(s))); + for (const n of s) { + if (!o[n]) break; + if ('object' == typeof o[n]) { + let t = ''; + if ( + (o[n].styles && + (t += ``), + o[n].backdrop && + (t += `
    `), + o[n].container && + (t += `
    `), + o[n].rows) + ) { + t += "
    "; + for (const e of o[n].rows) { + t += '
      '; + for (const i of e) + (t += '${ + i.label ? i.label : '' + }`); + t += '
    '; + } + (t += '
    '), + o[n].container && (t += ""), + o[n].backdrop && (t += ""); + } + o[n] = t; + } + (i += + "
    "), + (i += ni(t, a, e)); + const s = 'function' == typeof o[n] ? o[n]() : o[n]; + (i += li(t, s)), (i += '
    '); + } + } + const l = document.createElement('div'); + (l.className = 'ML__keyboard'), + e + ? l.classList.add(e) + : t.config.virtualKeyboardTheme + ? l.classList.add(t.config.virtualKeyboardTheme) + : /android|cros/i.test(navigator.userAgent) && + l.classList.add('material'), + (l.innerHTML = i), + ri( + t, + l.querySelectorAll( + '.keycap, .action, .fnbutton, .bigfnbutton' + ) + ); + const c = l.getElementsByClassName('layer-switch'); + for (let e = 0; e < c.length; ++e) + c[e].classList.contains('shift') + ? t._attachButtonHandlers(c[e], { + pressed: ['shiftKeyboardLayer', 'shift'], + default: [ + 'switchKeyboardLayer', + c[e].getAttribute('data-layer'), + ], + pressAndHoldEnd: 'unshiftKeyboardLayer', + }) + : t._attachButtonHandlers(c[e], { + default: [ + 'switchKeyboardLayer', + c[e].getAttribute('data-layer'), + ], + }); + const h = l.getElementsByClassName('keyboard-layer'); + return ( + Array.from(h).forEach(t => { + t.addEventListener('mousedown', t => { + t.preventDefault(), t.stopPropagation(); + }), + t.addEventListener('touchstart', t => { + t.preventDefault(), t.stopPropagation(); + }); + }), + h[0].classList.add('is-visible'), + window.addEventListener('mouseup', function() { + t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); + }), + window.addEventListener('blur', function() { + t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); + }), + window.addEventListener('touchend', function() { + t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); + }), + window.addEventListener('touchcancel', function() { + t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); + }), + l + ); + }, + makeKeycap: ri, + }; + const hi = { + '−': '-', + '-': '-', + '\\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', + }, + di = { + '\\pm': '+-', + '\\times': 'xx', + '\\colon': ':', + '\\vert': '|', + '\\Vert': '||', + '\\mid': '|', + '\\lbrace': '{', + '\\rbrace': '}', + '\\langle': '(:', + '\\rangle': ':)', + }, + pi = { + '\\pm': '±', + '\\times': '×', + '\\colon': ':', + '\\vert': '|', + '\\Vert': '∥', + '\\mid': '∣', + '\\lbrace': '{', + '\\rbrace': '}', + '\\langle': '⟨', + '\\rangle': '⟩', + '\\lfloor': '⌊', + '\\rfloor': '⌋', + '\\lceil': '⌈', + '\\rceil': '⌉', + '\\vec': '⃗', + '\\acute': '´', + '\\grave': '`', + '\\dot': '˙', + '\\ddot': '¨', + '\\tilde': '~', + '\\bar': '¯', + '\\breve': '˘', + '\\check': 'ˇ', + '\\hat': '^', + }; + function mi(t) { + return t + .replace(/"/g, '"') + .replace(/'/g, ''') + .replace(//g, '>'); + } + function ui(t, e) { + return t && e.generateID ? ' extid="' + t + '"' : ''; + } + function fi(t, e, i) { + let s = !1; + e = e || t.atoms.length; + let a = '', + o = '', + n = -1, + r = -1; + const l = t.atoms[t.index]; + if ( + (t.index < e && + ('mord' === l.type || 'textord' === l.type) && + '0123456789,.'.indexOf(l.body) < 0 && + ((o = l.toMathML(i)), + l.superscript && (n = t.index), + l.subscript && (r = t.index), + (t.index += 1)), + o.length > 0) + ) { + if ( + ((s = !0), + gi(t) && ((n = t.index), (t.index += 1)), + yi(t) && ((r = t.index), (t.index += 1)), + n >= 0 && r >= 0) + ) + (a = '' + o), + (a += Si(t.atoms[r].subscript, 0, 0, i).mathML), + (a += Si(t.atoms[n].superscript, 0, 0, i).mathML), + (a += ''); + else if (n >= 0) { + if (((a = '' + o), gi(t))) { + const e = Si(t.atoms[n].superscript, 0, 0, i).mathML, + s = Si(t.atoms[n + 1].superscript, 0, 0, i).mathML; + a += + ('′' !== e && '′' !== e) || + ('′' !== s && '′' !== s) + ? '′' === e || + '′' === e + ? '′' + : e + : '″'; + } else a += Si(t.atoms[n].superscript, 0, 0, i).mathML; + a += ''; + } else + r >= 0 + ? ((a = '' + o), + (a += Si(t.atoms[r].subscript, 0, 0, i).mathML), + (a += '')) + : (a = o); + ('mi' !== t.lastType && + 'mn' !== t.lastType && + 'mtext' !== t.lastType && + 'fence' !== t.lastType) || + /^(.*)<\/mo>$/.test(a) || + (a = '⁢' + a), + o.endsWith('>f') || o.endsWith('>g') + ? ((a += ' ⁡ '), + (t.lastType = 'applyfunction')) + : (t.lastType = /^(.*)<\/mo>$/.test(a) + ? 'mo' + : 'mi'), + (t.mathML += a); + } + return s; + } + function gi(t) { + return ( + t.index < t.atoms.length && + t.atoms[t.index].superscript && + 'msubsup' === t.atoms[t.index].type + ); + } + function yi(t) { + return ( + t.index < t.atoms.length && + t.atoms[t.index].subscript && + 'msubsup' === t.atoms[t.index].type + ); + } + function bi(t, e, i) { + let s = !1, + a = '', + o = e.atoms[e.index - 1]; + return ( + !!o && + (o.superscript || + o.subscript || + ((gi(e) || yi(e)) && + ((o = e.atoms[e.index]), (e.index += 1))), + !!o && + (o.superscript && o.subscript + ? ((a = '' + t), + (a += Si(o.subscript, 0, 0, i).mathML), + (a += Si(o.superscript, 0, 0, i).mathML), + (a += '')) + : o.superscript + ? ((a = '' + t), + (a += Si(o.superscript, 0, 0, i).mathML), + (a += '')) + : o.subscript && + ((a = '' + t), + (a += Si(o.subscript, 0, 0, i).mathML), + (a += '')), + a.length > 0 && + ((s = !0), (e.mathML += a), (e.lastType = '')), + s)) + ); + } + function xi(t, e, i) { + let s = !1; + e = e || t.atoms.length; + const a = t.index; + let o = ''; + for (; t.index < e && 'text' === t.atoms[t.index].mode; ) + (o += t.atoms[t.index].body ? t.atoms[t.index].body : ' '), + (t.index += 1); + return ( + o.length > 0 && + ((s = !0), + (o = + '' + o + ''), + (t.mathML += o), + (t.lastType = 'mtext')), + s + ); + } + function ki(t, e, i) { + let s = !1; + e = e || t.atoms.length; + const a = t.index; + let o = '', + n = (function(t) { + let e = -1, + i = t.index, + s = !1, + a = !1; + for (; i < t.atoms.length && !s && !a; ) + (s = + 'mord' !== t.atoms[i].type || + '0123456789,.'.indexOf(t.atoms[i].body) < 0), + (a = !s && t.atoms[i].superscript), + i++; + return a && (e = i - 1), e; + })(t); + for ( + n >= 0 && n < e && (e = n); + t.index < e && + 'mord' === t.atoms[t.index].type && + '0123456789,.'.indexOf(t.atoms[t.index].body) >= 0; + + ) + (o += t.atoms[t.index].body), (t.index += 1); + return ( + o.length > 0 && + ((s = !0), + (o = '' + o + ''), + n < 0 && gi(t) && ((n = t.index), (t.index += 1)), + n >= 0 && + ((o = '' + o), + (o += Si(t.atoms[n].superscript, 0, 0, i).mathML), + (o += '')), + (t.mathML += o), + (t.lastType = 'mn')), + s + ); + } + function vi(t, e, i) { + let s = !1; + e = e || t.atoms.length; + let a = '', + o = ''; + if (t.index < e && 'mopen' === t.atoms[t.index].type) { + let n = !1, + r = 0; + const l = t.index; + let c = -1, + h = l + 1; + for (; h < e && !n; ) + 'mopen' === t.atoms[h].type + ? (r += 1) + : 'mclose' === t.atoms[h].type && (r -= 1), + -1 === r && ((n = !0), (c = h)), + (h += 1); + n && + ((a = ''), + (a += Ai(t.atoms[l], i)), + (a += Si(t.atoms, l + 1, c, i).mathML), + (a += Ai(t.atoms[c], i)), + (a += ''), + ('mi' !== t.lastType && + 'mn' !== t.lastType && + 'mfrac' !== t.lastType && + 'fence' !== t.lastType) || + (a = '⁢' + a), + (t.index = c + 1), + bi(a, t, i) && ((s = !0), (t.lastType = ''), (a = '')), + (o = 'fence')); + } + return ( + a.length > 0 && ((s = !0), (t.mathML += a), (t.lastType = o)), s + ); + } + function wi(t, e, i) { + let s = !1; + e = e || t.atoms.length; + let a = '', + o = ''; + const n = t.atoms[t.index]; + if (t.index < e && ('mbin' === n.type || 'mrel' === n.type)) + (a += t.atoms[t.index].toMathML(i)), (t.index += 1), (o = 'mo'); + else if (t.index < e && 'mop' === n.type) { + if ('limits' === n.limits && (n.superscript || n.subscript)) { + const t = Ai(n, i); + n.superscript && n.subscript + ? ((a += + ('nolimits' !== n.limits + ? '' + : '') + t), + (a += Si(n.subscript, 0, 0, i).mathML), + (a += Si(n.superscript, 0, 0, i).mathML), + (a += + 'nolimits' !== n.limits + ? '' + : '')) + : n.superscript + ? ((a += + ('nolimits' !== n.limits ? '' : '') + + t), + (a += Si(n.superscript, 0, 0, i).mathML), + (a += + 'nolimits' !== n.limits ? '' : '')) + : ((a += + ('nolimits' !== n.limits + ? '' + : '') + t), + (a += Si(n.subscript, 0, 0, i).mathML), + (a += + 'nolimits' !== n.limits + ? '' + : '')), + (o = 'mo'); + } else { + const e = t.atoms[t.index], + n = 0 === e.latex.indexOf('\\operatorname'), + r = n + ? '' + + Mi(e.body) + + '' + : Ai(e, i); + (a += r), + (t.index += 1), + bi(a, t, i) && ((s = !0), (t.lastType = ''), (a = '')), + (t.index -= 1), + n || /^(.*)<\/mo>$/.test(r) + ? (o = n ? 'mi' : 'mo') + : ((a += '⁡'), + (o = 'applyfunction')); + } + ('mi' !== t.lastType && 'mn' !== t.lastType) || + /^(.*)<\/mo>$/.test(a) || + (a = '⁢' + a), + (t.index += 1); + } + return ( + a.length > 0 && ((s = !0), (t.mathML += a), (t.lastType = o)), s + ); + } + function Si(t, e, i, s) { + const a = { atoms: t, index: e || 0, mathML: '', lastType: '' }; + if ( + ((i = i || (t ? t.length : 0)), + 'number' == typeof t || 'boolean' == typeof t) + ) + a.mathML = t.toString(); + else if ('string' == typeof t) a.mathML = t; + else if (t && 'function' == typeof t.toMathML) + a.mathML = t.toMathML(s); + else if (Array.isArray(t)) { + let t = 0; + for (; a.index < i; ) + if ( + xi(a, i, s) || + ki(a, i, s) || + fi(a, i, s) || + wi(a, i, s) || + vi(a, i, s) + ) + t += 1; + else if (a.index < i) { + let e = a.atoms[a.index].toMathML(s); + 'mn' === a.lastType && + e.length > 0 && + 'genfrac' === a.atoms[a.index].type && + (e = '⁤' + e), + 'genfrac' === a.atoms[a.index].type + ? (a.lastType = 'mfrac') + : (a.lastType = ''), + e.length > 0 && ((a.mathML += e), (t += 1)), + (a.index += 1); + } + t > 1 && (a.mathML = '' + a.mathML + ''); + } + return a; + } + function Ai(t, e) { + let i = ''; + const s = Mi(t.body); + return s && (i = '' + s + ''), i; + } + function Mi(t) { + if (!t) return ''; + if ('string' == typeof t) return mi(t); + if (!Array.isArray(t) && 'string' == typeof t.body) + return mi(t.body); + let e = ''; + for (const i of t) 'string' == typeof i.body && (e += i.body); + return mi(e); + } + (te.MathAtom.prototype.toMathML = function(t) { + const e = { + '\\exponentialE': 'ⅇ', + '\\imaginaryI': 'ⅈ', + '\\differentialD': 'ⅆ', + '\\capitalDifferentialD': 'ⅅ', + '\\alpha': 'α', + '\\pi': 'π', + '\\infty': '∞', + '\\forall': '∀', + '\\nexists': '∄', + '\\exists': '∃', + '\\hbar': 'ℏ', + '\\cdotp': '⋅', + '\\ldots': '…', + '\\cdots': '⋯', + '\\ddots': '⋱', + '\\vdots': '⋮', + '\\ldotp': '.', + }, + i = { + '\\!': -3 / 18, + '\\ ': 6 / 18, + '\\,': 3 / 18, + '\\:': 4 / 18, + '\\;': 5 / 18, + '\\enspace': 0.5, + '\\quad': 1, + '\\qquad': 2, + '\\enskip': 0.5, + }; + let s, + a, + o, + n, + r, + l, + c = '', + h = '', + d = + { + cal: 'script', + frak: 'fraktur', + bb: 'double-struck', + scr: 'script', + cmtt: 'monospace', + cmss: 'sans-serif', + }[this.fontFamily || this.font] || ''; + d && (d = ' mathvariant="' + d + '"'); + const p = this.latex ? this.latex.trim() : null; + if ('text' === this.mode) + c = '' + this.body + ''; + else + switch (this.type) { + case 'first': + break; + case 'group': + case 'root': + c = Si(this.body, 0, 0, t).mathML; + break; + case 'array': + if ( + (((this.lFence && '.' !== this.lFence) || + (this.rFence && '.' !== this.rFence)) && + ((c += ''), + this.lFence && + '.' !== this.lFence && + (c += + '' + + (pi[this.lFence] || this.lFence) + + '')), + (c += '' + + Si(this.array[a][s], 0, 0, t).mathML + + ''; + c += ''; + } + (c += ''), + ((this.lFence && '.' !== this.lFence) || + (this.rFence && '.' !== this.rFence)) && + (this.rFence && + '.' !== this.rFence && + (c += + '' + + (pi[this.lFence] || this.rFence) + + ''), + (c += '')); + break; + case 'genfrac': + (this.leftDelim || this.rightDelim) && (c += ''), + this.leftDelim && + '.' !== this.leftDelim && + (c += + '' + + (pi[this.leftDelim] || this.leftDelim) + + ''), + this.hasBarLine + ? ((c += ''), + (c += + Si(this.numer, 0, 0, t).mathML || + ' '), + (c += + Si(this.denom, 0, 0, t).mathML || + ' '), + (c += '')) + : ((c += ''), + (c += + '' + + Si(this.numer, 0, 0, t).mathML + + ''), + (c += + '' + + Si(this.denom, 0, 0, t).mathML + + ''), + (c += '')), + this.rightDelim && + '.' !== this.rightDelim && + (c += + '' + + (pi[this.rightDelim] || this.rightDelim) + + ''), + (this.leftDelim || this.rightDelim) && + (c += ''); + break; + case 'surd': + this.index + ? ((c += ''), + (c += Si(this.body, 0, 0, t).mathML), + (c += Si(this.index, 0, 0, t).mathML), + (c += '')) + : ((c += ''), + (c += Si(this.body, 0, 0, t).mathML), + (c += '')); + break; + case 'leftright': + (c = ''), + this.leftDelim && + '.' !== this.leftDelim && + (c += + '' + + (pi[this.leftDelim] || this.leftDelim) + + ''), + this.body && (c += Si(this.body, 0, 0, t).mathML), + this.rightDelim && + '.' !== this.rightDelim && + (c += + '' + + (pi[this.rightDelim] || this.rightDelim) + + ''), + (c += ''); + break; + case 'sizeddelim': + case 'delim': + c += + '' + + (pi[this.delim] || this.delim) + + ''; + break; + case 'accent': + (c += ''), + (c += Si(this.body, 0, 0, t).mathML), + (c += '' + (pi[p] || this.accent) + ''), + (c += ''); + break; + case 'line': + case 'overlap': + break; + case 'overunder': + (r = this.overscript), + (n = this.underscript), + r && n + ? (l = this.body) + : r + ? ((l = this.body), + this.body[0] && this.body[0].underscript + ? ((n = this.body[0].underscript), + (l = this.body[0].body)) + : this.body[0] && + 'first' === this.body[0].type && + this.body[1] && + this.body[1].underscript && + ((n = this.body[1].underscript), + (l = this.body[1].body))) + : n && + ((l = this.body), + this.body[0] && this.body[0].overscript + ? ((r = this.body[0].overscript), + (l = this.body[0].body)) + : this.body[0] && + 'first' === this.body[0].type && + this.body[1] && + this.body[1].overscript && + ((r = this.body[1].overscript), + (l = this.body[1].body))), + r && n + ? ((c += + '' + + Si(l, 0, 0, t).mathML), + (c += Si(n, 0, 0, t).mathML), + (c += Si(r, 0, 0, t).mathML), + (c += '')) + : r + ? ((c += + '' + + Si(l, 0, 0, t).mathML), + (c += Si(r, 0, 0, t).mathML), + (c += '')) + : n && + ((c += + '' + + Si(l, 0, 0, t).mathML), + (c += Si(n, 0, 0, t).mathML), + (c += '')); + break; + case 'placeholder': + case 'mord': { + c = + e[p] || + p || + ('string' == typeof this.body ? this.body : ''); + const i = p + ? p.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) + : null; + i + ? (c = '&#x' + i[1] + ';') + : c.length > 0 && + '\\' === c.charAt(0) && + (c = + 'string' == typeof this.body && + this.body.charCodeAt(0) > 255 + ? '&#x' + + ( + '000000' + + this.body.charCodeAt(0).toString(16) + ).substr(-4) + + ';' + : 'string' == typeof this.body + ? this.body.charAt(0) + : this.body); + const s = /\d/.test(c) ? 'mn' : 'mi'; + c = + '<' + + s + + d + + ui(this.id, t) + + '>' + + mi(c) + + ''; + break; + } + case 'mbin': + case 'mrel': + case 'textord': + case 'minner': + c = + p && e[p] + ? '' + e[p] + '' + : p && pi[p] + ? '' + pi[p] + '' + : Ai(this, t); + break; + case 'mpunct': + c = + '' + + (pi[p] || p) + + ''; + break; + case 'mop': + '​' !== this.body && + ((c = ''), + (c += + '\\operatorname' === p + ? this.body + : p || this.body), + (c += '')); + break; + case 'mathstyle': + break; + case 'box': + (c = '' + + Si(this.body, 0, 0, t).mathML + + ''); + break; + case 'spacing': + c += ''; + break; + case 'enclose': + c = '' + + Si(this.body, 0, 0, t).mathML + + ''; + break; + case 'space': + c += ' '; + } + return c; + }), + (te.toMathML = function(t, e) { + return Si(t, 0, 0, e).mathML; + }); + const Ci = { + '\\imaginaryI': 'ⅈ', + '\\imaginaryJ': 'ⅉ', + '\\pi': 'π', + '\\exponentialE': 'ℯ', + '﹢': '+', + '＋': '+', + '−': '-', + '-': '-', + '﹣': '-', + '－': '-', + '\\times': '*', + '\\cdot': '*', + '⨉': '*', + '️✖': '*', + '️×': '*', + '.': '*', + '÷': '/', + '⁄': '/', + '／': '/', + '!': 'factorial', + '\\mp': 'minusplus', + '\\ne': '!=', + '\\coloneq': ':=', + '\\questeq': '?=', + '\\approx': 'approx', + '\\cong': 'congruent', + '\\sim': 'similar', + '\\equiv': 'equiv', + '\\pm': 'plusminus', + '\\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', + '\\ominus': 'ominus', + '\\odot': 'odot', + '\\otimes': 'otimes', + '\\zeta': 'Zeta', + '\\Gamma': 'Gamma', + '\\min': 'min', + '\\max': 'max', + '\\mod': 'mod', + '\\lim': 'lim', + '\\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', + '\\to': 'to', + '\\gets': 'gets', + '\\in': 'elementof', + '\\notin': '!elementof', + '\\ni': 'ownedby', + '\\owns': 'ownedby', + '\\subset': 'subset', + '\\supset': 'superset', + '\\complement': 'complement', + '\\rightarrow': 'shortLogicalImplies', + '\\leftarrow': 'shortLogicalImpliedBy', + '\\leftrightarrow': 'shortLogicalEquivalent', + '\\longrightarrow': 'logicalImplies', + '\\longleftarrow': 'logicalImpliedBy', + '\\longleftrightarrow': 'logicalEquivalent', + '\\Rightarrow': 'shortImplies', + '\\Leftarrow': 'shortImpliedBy', + '\\Leftrightarrow': 'shortEquivalent', + '\\implies': 'implies', + '\\Longrightarrow': 'implies', + '\\impliedby': 'impliedBy', + '\\Longleftarrow': 'impliedBy', + '\\iff': 'equivalent', + '\\Longleftrightarrow': 'equivalent', + }, + _i = { + '+': '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', + }, + Ti = { + 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', + 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', + arcsec: '\\arcsec %0', + arccsc: '\\arccsc %0', + arsinh: '\\arsinh %0', + arcosh: '\\arcosh %0', + artanh: '\\artanh %0', + arcsch: '\\arcsch %0', + arsech: '\\arsech %0', + arcoth: '\\arcoth %0', + ln: '\\ln%_%^ %', + log: '\\log%_%^ %', + lg: '\\lg %', + lb: '\\lb %', + sum: '\\sum%_%^ %0', + prod: '\\prod%_%^ %0', + Zeta: '\\zeta%_%^ %', + Gamma: '\\Gamma %', + min: '\\min%_%^ %', + max: '\\max%_%^ %', + mod: '\\mod%_%^ %', + lim: '\\lim%_%^ %', + 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}', + sqrt: '\\sqrt{%0}', + lcm: '\\operatorname{lcm}%', + gcd: '\\operatorname{gcd}%', + erf: '\\operatorname{erf}%', + erfc: '\\operatorname{erfc}%', + randomReal: '\\operatorname{randomReal}%', + randomInteger: '\\operatorname{randomInteger}%', + and: '%0 \\land %1', + or: '%0 \\lor %1', + xor: '%0 \\oplus %1', + not: '%0 \\lnot %1', + 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!!', + }, + Li = { + degree: 880, + nabla: 740, + curl: 740, + partial: 740, + differentialD: 740, + capitalDifferentialD: 740, + '**': 720, + odot: 710, + not: 680, + div: 660, + solidus: 660, + '/': 660, + setminus: 650, + '%': 640, + otimes: 410, + union: 350, + intersection: 350, + '*': 390, + ast: 390, + '.': 390, + oplus: 300, + ominus: 300, + '+': 275, + '-': 275, + '+-': 275, + '-+': 275, + circle: 265, + circledast: 265, + circledcirc: 265, + star: 265, + '..': 263, + to: 262, + in: 262, + '|': 261, + congruent: 265, + equiv: 260, + '=': 260, + '!=': 255, + '?=': 255, + similar: 250, + approx: 247, + '<': 245, + '>': 243, + '>=': 242, + '≥': 242, + '<=': 241, + complement: 240, + subset: 240, + superset: 240, + elementof: 240, + '!elementof': 240, + exists: 230, + '!exists': 230, + forall: 230, + and: 200, + xor: 195, + or: 190, + suchThat: 110, + ':': 100, + assign: 80, + ':=': 80, + therefore: 70, + because: 70, + 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 Fi(t, e) { + return Array.isArray(t.arg) ? t.arg[e] : void 0; + } + function Di(t) { + return (t && Li[t]) || -1; + } + function zi(t) { + return /=|=>/.test(t) ? 'right' : 'left'; + } + function Ei(t) { + if ('f' === t || 'g' === t) return !0; + const e = Ti[t]; + return !!e && !!/%[^01_^]?/.test(e); + } + function qi(t) { + t = (t || '').trim(); + let e = Ci[t]; + if (!e) + if (/^\\[^{}]+$/.test(t)) { + const i = At.getInfo(t, 'math', {}); + e = (i && i.value) || t.slice(1); + } else e = t; + return e; + } + function Pi(t) { + if (!t) return null; + const e = qi(Ni(t)), + i = [Di(e), zi(e)]; + return i[0] <= 0 ? null : i; + } + function Ii(t) { + return null !== Pi(t); + } + const Bi = { + '\\lfloor\\rfloor': 'floor', + '\\lceil\\rceil': 'ceil', + '\\vert\\vert': 'abs', + '\\lvert\\rvert': 'abs', + '||': 'abs', + '\\Vert\\Vert': 'norm', + '\\lVert\\rVert': 'norm', + '\\ulcorner\\urcorner': 'ucorner', + '\\llcorner\\lrcorner': 'lcorner', + '\\langle\\rangle': 'angle', + '\\lgroup\\rgroup': 'group', + '\\lmoustache\\rmoustache': 'moustache', + '\\lbrace\\rbrace': 'brace', + }, + Oi = { + '!': 'factorial', + '\\dag': 'dagger', + '\\dagger': 'dagger', + '\\ddagger': 'dagger2', + '\\maltese': 'maltese', + '\\backprime': 'backprime', + '\\backdoubleprime': 'backprime2', + '\\prime': 'prime', + '\\doubleprime': 'prime2', + '\\$': '$', + '\\%': '%', + '\\_': '_', + '\\degree': 'degree', + }, + Ri = { + '+': 'add', + '-': 'add', + '*': 'multiply', + '=': 'equal', + ',': 'list', + ';': 'list2', + and: 'and', + or: 'or', + xor: 'xor', + union: 'union', + shortLogicalEquivalent: 'logicalEquivalent', + logicalEquivalent: 'logicalEquivalent', + shortEquivalent: 'equivalent', + equivalent: 'equivalent', + }, + Ki = { ',': 'list', ';': 'list2' }; + function Ni(t) { + if ('string' == typeof t) return t; + if (Array.isArray(t)) { + let e = ''; + for (const i of t) e += Ni(i); + return e; + } + if ( + t.latex && + !/^\\math(op|bin|rel|open|punct|ord|inner)/.test(t.latex) + ) + return t.latex.trim(); + if ('leftright' === t.type) return ''; + if ('string' == typeof t.body) return t.body; + if (Array.isArray(t.body)) { + let e = ''; + for (const i of t.body) e += Ni(i); + return e; + } + return ''; + } + function $i(t) { + return 'string' == typeof t.sym + ? (function(t) { + let e = Ti[t]; + if (e) + return e + .replace('%1', '') + .replace('%0', '') + .replace('%', ''); + if (t.length > 1) { + const i = At.getInfo('\\' + t, 'math'); + !i || + (i.fontFamily && + 'cmr' !== i.fontFamily && + 'ams' !== i.fontFamily) || + (e = '\\' + t); + } + return e || (e = At.unicodeStringToLatex('math', t)), e; + })(t.sym) || t.sym + : ''; + } + function Wi(t) { + return parseFloat(t.num); + } + function Hi(t) { + return 'object' == typeof t && void 0 !== t.num; + } + function Vi(t) { + let e = 0; + return ( + Hi(t) && + (e = + 'object' == typeof t.num + ? void 0 !== t.num.re + ? hs(t.num.re) + : 0 + : parseFloat(t.num)), + e + ); + } + function Ui(t) { + let e = 0; + return ( + Hi(t) && + 'object' == typeof t.num && + (e = void 0 !== t.num.im ? hs(t.num.im) : 0), + e + ); + } + function ji(t) { + return t && void 0 !== t.sup; + } + function Gi(t) { + return t && void 0 !== t.sub; + } + function Zi(t, e, i) { + let s = !1; + const a = t.atoms[t.index]; + return a && a.type === e && (s = void 0 === i || Ni(a) === i), s; + } + function Xi(t, ...e) { + const i = { fn: t }; + if (e) { + const t = []; + for (const i of e) i && t.push(i); + t.length > 0 && (i.arg = t); + } + return i; + } + function Ji(t) { + return 'number' == typeof t + ? { num: t.toString() } + : 'string' == typeof t + ? { num: t } + : 'object' == typeof t + ? { num: t } + : void 0; + } + function Yi(t) { + if (Hi(t)) { + const e = Vi(t), + i = Ui(t); + return ( + 0 !== i + ? (0 !== e && (t.num.re = (-e).toString()), + (t.num.im = (-i).toString())) + : (t.num = (-e).toString()), + t + ); + } + return Xi('negate', t); + } + function Qi(t) { + const e = t.atoms[t.index + 1]; + return e && 'msubsup' === e.type; + } + function ts(t, e) { + let i = t.atoms[t.index]; + return ( + !i || (void 0 === i.superscript && void 0 === i.subscript) + ? (i = null) + : (t.index += 1), + i || + ((i = t.atoms[t.index + 1]), + i && 'msubsup' === i.type && (i.superscript || i.subscript) + ? (t.index += 2) + : (i = null)), + i + ? (void 0 !== i.subscript && + (t.ast.sub = rs(i.subscript, e)), + void 0 !== i.superscript && + ('msubsup' === i.type + ? /['\u2032]|\\prime/.test(Ni(i.superscript)) + ? ((t.index += 1), + (i = t.atoms[t.index + 1]), + i && + 'msubsup' === i.type && + /['\u2032]|\\prime/.test(Ni(i.superscript)) + ? (t.ast.sup = { sym: '″' }) + : ((t.ast.sup = { sym: '′' }), + (t.index -= 1))) + : /['\u2033]|\\doubleprime/.test( + Ni(i.superscript) + ) + ? 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((t.index += 1), (t.ast = 'curl'), t) + : Zi(t, 'mbin', '\\cdot') + ? 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(s.arg = o.arg) + : o && (s.arg = [o]), + (e.ast = s); + } else + (e.ast = s.toAST(i)), + 'ⅈ' === e.ast.sym && + (e.ast = Ji({ im: '1' })), + (e = ts(e)); + e = es(e, i); + } else if ('textord' === s.type) { + if ( + !Ii(s) && + !At.RIGHT_DELIM[ + s.latex ? s.latex.trim() : s.body + ] + ) + if (Ei(a)) { + e.ast = { fn: a }; + const s = (e = ts(e, i)).ast; + (e.index += 1), + (s.arg = [t(e, i).ast]), + (e.ast = s), + (e = es(e, i)); + } else + (e.ast = s.toAST(i)), + void 0 === s.superscript && + (e.index += 1), + (e = es((e = ts(e, i)), i)); + } else if ('mop' === s.type) { + if ( + (/^\\(mathop|operatorname|operatorname\*)/.test( + s.latex + ) || + Ei(a)) && + !Ii(s) + ) + if ( + ((e.ast = { + fn: /^\\(mathop|operatorname|operatorname\*)/.test( + s.latex + ) + ? Ni(s.body) + : a, + }), + ji((e = ts(e, i)).ast)) + ) { + const s = { + 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 (-1 === Wi(e.ast.sup) && s[a]) + e.ast = Xi(s[a], t(e, i).ast); + else { + const s = e.ast; + (s.arg = [t(e, i).ast]), (e.ast = s); + } + } else { + const s = e.ast, + a = t(e, i).ast; + a && /^(list0|list|list2)$/.test(a.fn) + ? (s.arg = a.arg) + : a && (s.arg = [a]), + (e.ast = s); + } + } else if ('array' === s.type) + (e.index += 1), (e.ast = s.toAST(i)); + else if ('group' === s.type) + (e.index += 1), (e.ast = s.toAST(i)); + else { + if ('mclose' === s.type) return e; + if ('error' === s.type) + return ( + (e.index += 1), + (e.ast = { error: s.latex }), + e + ); + } + } + if (void 0 === e.ast) { + const t = is(e, '(', ')', i) || is(e, null, null, i); + t + ? (e = t) + : Ii(s) || + ('placeholder' === s.type + ? (e.ast = Ji(0)) + : ((e.ast = { text: '?' }), + (e.ast.error = + "Unexpected token '" + s.type + "'"), + s.latex + ? (e.ast.latex = s.latex) + : s.body && + s.toLatex && + (e.ast.latex = s.toLatex())), + (e.index += 1)); + } + if ( + ((s = e.atoms[e.index]), + s && + ('mord' === s.type || + 'surd' === s.type || + 'mop' === s.type || + 'mopen' === s.type || + 'sizeddelim' === s.type || + 'leftright' === s.type)) + ) { + if ('sizeddelim' === s.type) + for (const t in At.RIGHT_DELIM) + if (s.delim === At.RIGHT_DELIM[t]) + return (e.index += 1), e; + if ( + ('mord' === s.type || + 'textord' === s.type || + 'mop' === s.type) && + Ii(s) + ) + return e; + const a = e.ast; + (e.ast = {}), + (e = t(e, i)) && e.ast && a + ? (Ei(a.fn) && void 0 === a.arg) || + (Array.isArray(a.arg) && 0 === a.arg.length) + ? 'list2' === e.ast.fn || + 'list' === e.ast.fn + ? (e.ast = Xi(a.fn, e.ast.arg)) + : (e.ast = Xi('multiply', a, e.ast)) + : 'multiply' === e.ast.fn + ? e.ast.arg.unshift(a) + : 0 === Ui(a) && + 0 !== Vi(a) && + 1 === Ui(e.ast) && + 0 === Vi(e.ast) + ? (e.ast = Ji({ im: Vi(a).toString() })) + : (e.ast = Xi('multiply', a, e.ast)) + : (e.ast = a); + } + return e; + })(t, e).ast, + s = !1; + const a = t.minPrec; + for (; !s; ) { + const o = t.atoms[t.index], + n = as(t); + let r, l; + if ( + ((s = !o || 'text' === o.mode || (!n && !Ii(o))), + s || (([r, l] = n ? [Di(n), zi(n)] : Pi(o)), (s = r < a)), + !s) + ) { + const a = n || qi(Ni(o)); + if ( + ((t.minPrec = 'left' === l ? r + 1 : r), + (t.index += 1), + '|' === a) + ) + if ( + void 0 !== o.subscript || + (t.atoms[t.index] && + void 0 !== t.atoms[t.index].subscript && + 'msubsup' === t.atoms[t.index].type) + ) { + t.ast = {}; + const s = ts(t, e).ast.sub; + if ( + ((i = Xi('bind', i)), + s && 'equal' === s.fn && i.arg) + ) + i.arg.push(Fi(s, 0)), i.arg.push(Fi(s, 1)); + else if ( + s && + i.arg && + ('list' === s.fn || 'list2' === s.fn) + ) { + let t = { sym: 'x' }; + for (let e = 0; e < s.arg.length; e++) + 'equal' === s.arg[e].fn + ? ((t = Fi(s.arg[e], 0)), + i.arg.push(t), + i.arg.push(Fi(s.arg[e], 1))) + : (i.arg.push(t), i.arg.push(s.arg[e])); + } else + s && (i.arg.push({ sym: 'x' }), i.arg.push(s)); + } else s = !0; + else { + const s = os(t, e).ast; + let o = Ki[a]; + o && i && i.fn !== o && (i = Xi(o, i)), + '-' === a + ? i && i.arg && 'add' === i.fn + ? void 0 !== s && i.arg.push(Yi(s)) + : (i = + i && 'subtract' === i.fn + ? Xi( + 'add', + Fi(i, 0), + Yi(Fi(i, 1)), + Yi(s) + ) + : !Hi(i) || + ji(i) || + !Hi(s) || + ji(s) || + (void 0 !== s.num.re && + '0' !== s.num.re) || + void 0 === s.num.im + ? Xi('subtract', i, s) + : { + num: { + re: i.num, + im: (-parseFloat( + s.num.im + )).toString(), + }, + }) + : ((o = Ri[a]), + 'add' === o && i && 'subtract' === i.fn + ? (i = Xi( + 'add', + Fi(i, 0), + Yi(Fi(i, 1)), + s + )) + : o && i && i.fn === o && !ji(i) + ? void 0 !== s && + (s.fn === o && !ji(s) && s.arg + ? (i.arg = [...i.arg, ...s.arg]) + : i.arg && i.arg.push(s)) + : o && s && s.arg && s.fn === o + ? (s.arg.unshift(i), (i = s)) + : (i = + 'multiply' === o && + Hi(i) && + !ji(i) && + s && + 10 === Wi(s) && + Hi(s.sup) + ? Ji( + Wi(i) * + Math.pow( + 10, + Wi(s.sup) + ) + ) + : 'add' === o && + Hi(i) && + !ji(i) && + s && + 0 !== Ui(s) && + !ji(s) + ? { + num: { + re: i.num, + im: s.num.im, + }, + } + : Xi(o || _i[a] || a, i, s))); + } + } + } + return (t.ast = i), t; + } + function ns(t) { + if (!t) return []; + let e; + if (Array.isArray(t)) { + e = []; + for (const i of t) { + const t = ns(i); + e = e.concat(t); + } + } else { + if ('spacing' === t.type) return []; + 'first' === t.type || 'box' === t.type + ? (e = ns(t.body)) + : (t.body && Array.isArray(t.body) && (t.body = ns(t.body)), + t.superscript && + Array.isArray(t.superscript) && + (t.superscript = ns(t.superscript)), + t.subscript && + Array.isArray(t.subscript) && + (t.subscript = ns(t.subscript)), + t.index && + Array.isArray(t.index) && + (t.index = ns(t.index)), + t.denom && + Array.isArray(t.denom) && + (t.denom = ns(t.denom)), + t.numer && + Array.isArray(t.numer) && + (t.numer = ns(t.numer)), + t.array && + Array.isArray(t.array) && + (t.array = t.array.map(t => t.map(t => ns(t)))), + (e = [t])); + } + return e; + } + function rs(t, e) { + return (function(t, e) { + (t.index = t.index || 0), (t.ast = void 0); + const i = []; + for (; t.atoms[t.index]; ) + if ('text' === t.atoms[t.index].mode) { + let e = ''; + for ( + ; + t.atoms[t.index] && + 'text' === t.atoms[t.index].mode; + + ) + (e += t.atoms[t.index].body), (t.index += 1); + i.push(e); + } else { + const s = os(t, e).ast; + if (!s) return; + i.push(s); + } + return i.length > 1 ? Xi('text', ...i) : i[0] || void 0; + })({ atoms: ns(t) }, e); + } + function ls(t) { + const e = Array.prototype.slice.call(arguments); + e.shift(), (t = t || '.. '); + let i = ''; + if (e.length > 0) { + '.' !== t[0] && (i += t[0]); + let s = ''; + for (const a of e) (i += s + a), (s = t[2]); + '.' !== t[1] && (i += t[1]); + } + return i; + } + function cs(t, e) { + const i = t.length; + t = t.substr(0, e.precision - 2); + for (let i = 0; i < t.length - 16; i++) { + const s = t.substr(0, i); + for (let a = 0; a < 17; a++) { + const o = t.substr(i, a + 1), + n = Math.floor((t.length - s.length) / o.length); + if (n > 1 && (s + o.repeat(n + 1)).startsWith(t)) + return '0' === o + ? s.replace(/(\d{3})/g, '$1' + e.groupSeparator) + : s.replace(/(\d{3})/g, '$1' + e.groupSeparator) + + e.beginRepeatingDigits + + o.replace( + /(\d{3})/g, + '$1' + e.groupSeparator + ) + + e.endRepeatingDigits; + } + } + return ( + i !== t.length && (t += '\\ldots'), + t.replace(/(\d{3})/g, '$1' + e.groupSeparator) + ); + } + function hs(t) { + return parseFloat(parseFloat(t).toPrecision(15)); + } + function ds(t, e) { + let i = ''; + if ('number' == typeof e.precision) { + if ('number' != typeof t) { + let i = '', + s = ''; + if ( + ('-' === t[0] + ? ((i = '-'), (t = t.substr(1))) + : '+' === t[0] && (t = t.substr(1)), + t.indexOf('.') >= 0) + ) { + const a = t.match(/(\d*).(\d*)([e|E]([-+]?[0-9]*))?/), + o = a[1], + n = a[2].substring( + 0, + Math.min(e.precision - o.length, a[2].length) + ); + if (((s = a[4] || ''), '0' === o)) { + let s = 0; + for (; '0' === n[s] && s < n.length; ) s += 1; + let a = ''; + if (s <= 4) + (a = '0' + e.decimalMarker), + (a += n.substr(0, s)), + (a += cs(t.substr(a.length), e)); + else if (s + 1 >= e.precision) (a = '0'), (i = ''); + else { + a = t[s]; + const i = cs(t.substr(s + 1), e); + i && (a += e.decimalMarker + i); + } + '0' !== a && + (t.length - 1 > e.precision && + !a.endsWith('}') && + !a.endsWith('\\ldots') && + (a += '\\ldots'), + s > 4 && + ((a += e.exponentProduct), + e.exponentMarker + ? (a += + e.exponentMarker + + (1 - s).toString()) + : (a += + '10^{' + + (1 - s).toString() + + '}'))), + (t = a); + } else { + t = o.replace( + /\B(?=(\d{3})+(?!\d))/g, + e.groupSeparator + ); + const i = cs(n, e); + i && (t += e.decimalMarker + i); + } + } else if (t.length > e.precision) { + const i = t.length; + let s = t[0]; + const a = cs(t.substr(2), e); + a && + ((s += e.decimalMarker + a), + '}' !== s[s.length - 1] && (s += '\\ldots')), + '1' !== s ? (s += e.exponentProduct) : (s = ''), + e.exponentMarker + ? (s += e.exponentMarker + (i - 2).toString()) + : (s += '10^{' + (i - 2).toString() + '}'), + (t = s); + } else + t = t.replace( + /\B(?=(\d{3})+(?!\d))/g, + e.groupSeparator + ); + return ( + s && + (s = e.exponentMarker + ? e.exponentMarker + s + : e.exponentProduct + ' 10^{' + s + '}'), + i + t + s + ); + } + t = hs(t); + } + if ('engineering' === e.scientificNotation) + if (0 === t) i = '0'; + else { + const s = Math.abs(t); + let a = Math.round(Math.log10(s)); + (a -= a % 3), s < 1e3 && (a = 0); + let o = s / Math.pow(10, a); + const n = o.toString().match(/^(.*)\.(.*)$/); + n && n[1] && n[2] && (o = n[1] + e.decimalMarker + n[2]), + e.groupSeparator && (o = cs(o.toExponential(), e)), + (a = + 0 === a + ? '' + : e.exponentMarker + ? e.exponentMarker + a + : e.exponentProduct + ' 10^{' + a + '}'), + (i = (t < 0 ? '-' : '') + o + a); + } + else { + const s = 'string' == typeof t ? t : t.toString(); + let a, + o, + n, + r = s.match(/^(.*)[e|E]([-+]?[0-9]*)$/i); + (a = s), + (n = ''), + r && + r[1] && + r[2] && + ((a = r[1]), + (o = e.exponentMarker + ? e.exponentMarker + r[2] + : e.exponentProduct + ' 10^{' + r[2] + '}')), + (r = a.match(/^(.*)\.(.*)$/)), + r && r[1] && r[2] && ((a = r[1]), (n = r[2])), + e.groupSeparator && + ((a = a.replace( + /\B(?=(\d{3})+(?!\d))/g, + e.groupSeparator + )), + (n = cs(n, e))), + n && (n = e.decimalMarker + n), + (i = a + n + (o || '')); + } + return i; + } + (te.MathAtom.prototype.toAST = function(t) { + let e, + i, + s, + a, + o = {}, + r = '', + l = { + bb: 'double-struck', + cal: 'script', + scr: 'script', + frak: 'fraktur', + cmrss: 'sans-serif', + cmrtt: 'monospace', + }[this.baseFontFamily || this.fontFamily], + c = ''; + 'b' === this.fontSeries && (c += 'bold'), + 'it' === this.fontShape && (c += 'italic'); + const h = this.latex ? this.latex.trim() : null; + switch (this.type) { + case 'root': + case 'group': + this.latex && this.latex.startsWith('\\nicefrac') + ? ((e = this.latex + .slice(9) + .match(/({.*}|[^}])({.*}|[^}])/)), + e + ? ((i = + 1 === e[1].length + ? e[1] + : e[1].substr(1, e[1].length - 2)), + (i = he.parseTokens( + n(i), + 'math', + null, + t.macros + )), + (s = + 1 === e[2].length + ? e[2] + : e[2].substr(1, e[2].length - 2)), + (s = he.parseTokens( + n(s), + 'math', + null, + t.macros + )), + (o = Xi('divide', rs(i, t), rs(s, t)))) + : (o.fn = 'divide')) + : (o.group = rs(this.body, t)); + break; + case 'genfrac': + o = Xi( + 'divide', + rs(this.numer, t), + this.denom && + this.denom[0] && + 'placeholder' === this.denom[0].type + ? Ji(1) + : rs(this.denom, t) + ); + break; + case 'surd': + o = this.index + ? Xi( + 'pow', + rs(this.body, t), + Xi('divide', Ji(1), rs(this.index, t)) + ) + : Xi('sqrt', rs(this.body, t)); + break; + case 'rule': + break; + case 'line': + case 'overlap': + case 'accent': + case 'overunder': + break; + case 'mord': + case 'textord': + case 'mbin': + (e = h + ? h.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) + : void 0), + e + ? (r = String.fromCodePoint(parseInt(e[1], 16))) + : ((r = qi(Ni(this))), + r.length > 0 && + '\\' === r.charAt(0) && + 'string' == typeof this.body && + (r = this.body)), + (a = At.mathVariantToUnicode(r, l, c) + .replace(/[\\]/g, '\\\\') + .replace(/["]/g, '\\"') + .replace(/[\b]/g, '\\b') + .replace(/[\f]/g, '\\f') + .replace(/[\n]/g, '\\n') + .replace(/[\r]/g, '\\r') + .replace(/[\t]/g, '\\t')), + a !== r + ? ((o = { sym: a }), (l = 'normal')) + : (o = { sym: r }); + break; + case 'minner': + case 'mop': + break; + case 'box': + o = rs(this.body, t); + break; + case 'enclose': + break; + case 'array': + if ('cardinality' === this.env.name) + o = Xi('card', rs(this.array, t)); + else if ( + /array|matrix|pmatrix|bmatrix/.test(this.env.name) + ) { + o = { fn: 'array', args: [] }; + for (const e of this.array) + o.args.push(e.map(e => rs(e, t))); + } else if ('cases' === this.env.name) { + o = { fn: 'cases', args: [] }; + for (const e of this.array) + if (e[0]) { + const i = []; + i.push(rs(e[0], t)); + let s = rs(e[1], t); + s && + 'text' === s.fn && + s.arg && + /^(if|when|for)$/i.test(s.arg[0].trim()) && + (s = s.arg.filter( + t => 'string' != typeof t + )), + i.push(s || {}), + o.args.push(i); + } + } + break; + case 'spacing': + case 'space': + case 'mathstyle': + break; + default: + o = void 0; + } + return ( + o && l && 'normal' !== l && (o.variant = l), + o && + 'string' == typeof this.cssClass && + (o.class = this.cssClass), + o && 'string' == typeof this.cssId && (o.id = this.cssId), + o + ); + }), + (te.toAST = function(t, e) { + return rs(t, e); + }); + var ps = function t(e, i) { + const s = Object.assign( + { + precision: 14, + decimalMarker: '.', + groupSeparator: '\\, ', + product: '\\cdot ', + exponentProduct: '\\cdot ', + exponentMarker: '', + arcSeparator: '\\,', + scientificNotation: 'auto', + beginRepeatingDigits: '\\overline{', + endRepeatingDigits: '}', + }, + i + ); + let a = ''; + if (void 0 === e) return ''; + if (('string' == typeof e && (e = JSON.parse(e)), e.latex)) + a = e.latex; + else if (Hi(e)) { + const i = Wi(e); + if (i === -1 / 0) a = '-\\infty '; + else if (i === 1 / 0) a = '\\infty '; + else if ( + 'object' != typeof e.num || + ('string' != typeof e.num.re && 'string' != typeof e.num.im) + ) + a = isNaN(i) ? '\\text{NaN}' : ds(e.num, s); + else { + const t = Vi(e), + i = Ui(e); + isNaN(t) || isNaN(i) + ? (a = '\\text{NaN}') + : Math.abs(i) <= Number.EPSILON && + Math.abs(t) <= Number.EPSILON + ? (a = '0') + : (Math.abs(t) > Number.EPSILON && (a = ds(t, s)), + Math.abs(i) > Number.EPSILON && + (Math.abs(t) > Number.EPSILON && + (a += i > 0 ? '+' : ''), + (a += + (1 !== Math.abs(i) ? ds(i, s) : '') + + '\\imaginaryI '))); + } + ji(e) && (a += '^{' + t(e.sup, s) + '}'), + Gi(e) && (a += '_{' + t(e.sub, s) + '}'); + } else if (e.group) + (a = t(e.group, s)), + Hi(e.group) || $i(e.group) + ? 0 !== Ui(e.group) && (a = ls(e.fence || '(),', a)) + : (a = ls(e.fence || '(),', a)), + ji(e) && (a += '^{' + t(e.sup, s) + '}'), + Gi(e) && (a += '_{' + t(e.sub, s) + '}'); + else if (e.fn) + if ('bind' === e.fn) { + if ( + ((a = t(Fi(e, 0), s) + '|_{'), + e.arg && 2 === e.arg.length) + ) + a += t(Fi(e, 1)); + else { + let i = ''; + for (let s = 1; s < e.arg.length; s += 2) + (a += i + t(Fi(e, s)) + ' = ' + t(Fi(e, s + 1))), + (i = ', '); + } + a += '}'; + } else if ('divide' === e.fn) + a = + '\\frac{' + + t(Fi(e, 0), s) + + '}{' + + t(Fi(e, 1), s) + + '}'; + else if ('negate' === e.fn) a = '-' + t(Fi(e, 0), s); + else if ('subtract' === e.fn) + a = t(Fi(e, 0), s) + ' - ' + t(Fi(e, 1), s); + else if ( + ('add' !== e.fn && 'multiply' !== e.fn) || + !Array.isArray(e.arg) + ) + if ('list' === e.fn || 'list2' === e.fn) { + const i = []; + for (const a of e.arg) i.push(t(a, s)); + a = i.join('list2' === e.fn ? '; ' : ', '); + } else if ( + 'pow' === e.fn && + Array.isArray(e.arg) && + e.arg.length >= 2 + ) + (a = t(Fi(e, 0), s)), + Hi(Fi(e, 0)) || + $i(Fi(e, 0)) || + (a = ls(e.fence || '(),', a)), + (a += '^{' + t(Fi(e, 1), s) + '}'); + else if ('equal' === e.fn && e.arg && e.arg.length > 2) + a = e.arg.map(e => t(e, s)).join(' = '); + else { + const i = (function(t) { + let e = Ti[t]; + return ( + e || + (e = + t.length > 1 + ? '\\operatorname{' + t + '}%^%_ %' + : t + '%^%_ %'), + e + ); + })(e.fn); + a = i; + let o = ''; + if ( + /%(?![01_^])/.test(i) && + Array.isArray(e.arg) && + e.arg.length > 1 + ) + a += ls( + e.fence || '(),', + ...e.arg.map(e => t(e, s)) + ); + else if (Array.isArray(e.arg) && e.arg.length > 0) { + const n = t(Fi(e, 0), s), + r = t(Fi(e, 1), s), + l = [...e.arg]; + /%0/.test(i) && + ((a = a.replace('%0', n)), l.shift()), + /%1/.test(i) && + ((a = a.replace('%1', r)), l.shift()), + l.length > 0 && + (o = ls( + e.fence || '(),', + ...l.map(e => t(e, s)) + )); + } else o = ls(e.fence || '(),', ''); + (a = ji(e) + ? a.replace('%^', '^{' + t(e.sup, s) + '}') + : a.replace('%^', '')), + (a = Gi(e) + ? a.replace('%_', '_{' + t(e.sub, s) + '}') + : a.replace('%_', '')), + (a = a.replace(/%(?![01_^])/, o)), + (a = a.replace('%0', '').replace('%1', '')); + } + else { + const i = []; + for (const a of e.arg) + 'add' === a.fn || 'subtract' === a.fn + ? i.push(ls('() ', t(a, s))) + : 0 !== Vi((o = a)) && 0 !== Ui(o) + ? i.push(ls('() ', t(a, s))) + : ji(e) && 0 !== Ui(a) && 1 !== Ui(a) + ? i.push(ls('() ', t(a, s))) + : i.push(t(a, s)); + if ('multiply' === e.fn) + a = + !e.arg || + 2 !== e.arg.length || + (!Hi(e.arg[0]) && 'divide' !== e.arg[0].fn) || + (Hi(e.arg[1]) && + (0 !== Vi(e.arg[1]) || 1 !== Ui(e.arg[1]))) + ? i.join(' \\times ') + : i[0] + i[1]; + else if (e.arg && 1 === e.arg.length) + a = + 'negate' === e.arg[0].fn || + (Hi(e.arg[0]) && Wi(e.arg[0]) < 0) + ? i[0] + : '+' + i[0]; + else { + a = i[0]; + for (let t = 1; t < e.arg.length; t++) + 'negate' === e.arg[t].fn || + (Hi(e.arg[t]) && Wi(e.arg[t]) < 0) + ? (a += i[t]) + : (a += ' + ' + i[t]); + } + } + else if ('string' == typeof e.sym) { + a = $i(e); + let i = a.match(/^&#x([0-9a-f]+);$/i); + i && i[1] + ? (a = String.fromCodePoint(parseInt(i[1], 16))) + : ((i = a.match(/^&#([0-9]+);$/i)), + i && i[1] && (a = String.fromCodePoint(parseInt(i[1])))), + 'string' == typeof e.variant && + (a = + '\\' + + { + normal: 'mathrm', + 'double-struck': 'mathbb', + bold: 'mathbf', + fraktur: 'mathfrak', + script: 'mathscr', + 'sans-serif': 'mathsf', + monospace: 'mathtt', + }[e.variant] + + '{' + + a + + '}'), + ji(e) && (a += '^{' + t(e.sup, s) + '}'), + Gi(e) && (a += '_{' + t(e.sub, s) + '}'); + } else 'string' == typeof e.text && (a = '\\text{' + e.text + '}'); + var o; + return ( + 'string' == typeof e.error && + (a = '\\bbox[#F56165]{' + a + '}'), + a + ); + }; + const ms = { + '\\alpha': 'alpha ', + '\\mu': 'mew ', + '\\sigma': 'sigma ', + '\\pi': 'pie ', + '\\imaginaryI': 'eye ', + '\\sum': 'Summation ', + '\\prod': 'Product ', + a: 'a', + A: 'capital A', + '+': 'plus ', + '-': 'minus ', + ';': ' semi-colon ', + ',': ' comma ', + '|': 'Vertical bar', + '(': 'Open paren. ', + ')': ' Close paren. ', + '=': '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 ', + '​': '', + '−': 'minus ', + ':': ' such that ', + '\\colon': ' such that ', + '\\hbar': 'etch bar ', + '\\iff': + 'if, and only if, ', + '\\Longleftrightarrow': + 'if, and only if, ', + '\\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 n', + '\\C': + 'the set c', + '\\Z': + 'the set z', + '\\Q': + 'the set q', + '\\infty': 'infinity ', + '\\nabla': 'nabla ', + '\\partial': 'partial derivative of ', + '\\cdots': 'dot dot dot ', + '\\Rightarrow': 'implies ', + '\\lbrace': 'open brace', + '\\{': 'open brace', + '\\rbrace': 'close brace', + '\\}': 'close brace', + '\\langle': + 'left angle bracket', + '\\rangle': + 'right angle bracket', + '\\lfloor': 'open floor', + '\\rfloor': 'close floor', + '\\lceil': 'open ceiling', + '\\rceil': + 'close ceiling', + '\\vert': 'vertical bar', + '\\mvert': 'divides', + '\\lvert': + 'left vertical bar', + '\\rvert': + 'right vertical bar', + '\\lbrack': + ' open square bracket ', + '\\rbrack': + ' close square bracket ', + mm: 'millimeters', + cm: 'centimeters', + km: 'kilometers', + kg: 'kilograms', + }; + function us(t) { + let e = 0; + if (t && Array.isArray(t)) + for (const i of t) 'first' !== i.type && (e += 1); + return 1 === e; + } + function fs(t) { + let e = ''; + if (t && Array.isArray(t)) + for (const i of t) + 'first' !== i.type && + 'string' == typeof i.body && + (e += i.body); + return e; + } + function gs(t, e, i, s) { + e = e.split(' '); + for (const a of e) { + const e = a.match(/(.*):(.*)/); + if (e) { + const a = s || {}; + 'active' === e[2] ? (a.passive = !1) : (a[e[2]] = !0), + t.addEventListener(e[1], i, a); + } else t.addEventListener(a, i, s); + } + } + function ys(t, e, i, s) { + e = e.split(' '); + for (const a of e) { + const e = a.match(/(.*):(.*)/); + if (e) { + const a = s || {}; + 'active' === e[2] ? (a.passive = !1) : (a[e[2]] = !0), + t.removeEventListener(e[1], i, a); + } else t.removeEventListener(a, i, s); + } + } + function bs(t, e) { + let i = document.getElementById(t); + return ( + i + ? i.setAttribute( + 'data-refcount', + parseInt(i.getAttribute('data-refcount')) + 1 + ) + : ((i = document.createElement('div')), + i.setAttribute('aria-hidden', 'true'), + i.setAttribute('data-refcount', '1'), + (i.className = e), + (i.id = t), + document.body.appendChild(i)), + i + ); + } + function xs(t) { + if (!t) return null; + const e = parseInt(t.getAttribute('data-refcount')); + return ( + e && 1 !== e + ? t.setAttribute('data-refcount', e - 1) + : t.remove(), + t + ); + } + function ks(t) { + return t.element && t.element.mathfield === t; + } + (te.toSpeakableFragment = function(t, e) { + function i(t) { + return '' + t + ''; + } + if (!t) return ''; + let s = ''; + if ( + (t.id && + 'math' === e.speechMode && + (s += ''), + Array.isArray(t)) + ) { + let a = !1, + o = !1; + for (let n = 0; n < t.length; n++) + 'text' !== t[n].mode && (o = !1), + n < t.length - 2 && + 'mopen' === t[n].type && + 'mclose' === t[n + 2].type && + 'mord' === t[n + 1].type + ? ((s += ' of '), + (s += i(te.toSpeakableFragment(t[n + 1], e))), + (n += 2)) + : 'text' === t[n].mode + ? o + ? (s += t[n].body ? t[n].body : ' ') + : ((o = !0), + (s += te.toSpeakableFragment(t[n], e))) + : 'mord' === t[n].type && + /[0123456789,.]/.test(t[n].body) + ? a + ? (s += t[n].body) + : ((a = !0), + (s += te.toSpeakableFragment(t[n], e))) + : ((a = !1), + (s += te.toSpeakableFragment(t[n], e))); + } else if ('text' === t.mode) s += t.body; + else { + let a = '', + o = '', + n = '', + r = !1; + switch (t.type) { + case 'group': + case 'root': + s += te.toSpeakableFragment(t.body, e); + break; + case 'genfrac': + if ( + ((a = te.toSpeakableFragment(t.numer, e)), + (o = te.toSpeakableFragment(t.denom, e)), + us(t.numer) && us(t.denom)) + ) { + const e = { + '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 ', + }[fs(t.numer) + '/' + fs(t.denom)]; + e ? (s = e) : (s += a + ' over ' + o); + } else + s += + ' the fraction ' + + a + + ', over ' + + o + + '. End fraction.'; + break; + case 'surd': + if ( + ((n = te.toSpeakableFragment(t.body, e)), t.index) + ) { + let i = te.toSpeakableFragment(t.index, e); + i = i.trim(); + const a = i.replace(//g, ''); + s += + '3' === a + ? ' the cube root of ' + + n + + '. End cube root' + : 'n' === a + ? ' the nth root of ' + + n + + '. End root' + : ' the root with index: ' + + i + + ', of ' + + n + + '. End root'; + } else + us(t.body) + ? (s += ' the square root of ' + n + ' , ') + : (s += + ' the square root of ' + + n + + '. End square root'); + break; + case 'accent': + break; + case 'leftright': + (s += ms[t.leftDelim] || t.leftDelim), + (s += te.toSpeakableFragment(t.body, e)), + (s += ms[t.rightDelim] || t.rightDelim); + break; + case 'line': + case 'rule': + case 'overunder': + case 'overlap': + break; + case 'placeholder': + s += 'placeholder ' + t.body; + break; + case 'delim': + case 'sizeddelim': + case 'mord': + case 'minner': + case 'mbin': + case 'mrel': + case 'mpunct': + case 'mopen': + case 'mclose': + case 'textord': { + const i = t.latex ? t.latex.trim() : ''; + if ( + '\\mathbin' === i || + '\\mathrel' === i || + '\\mathopen' === i || + '\\mathclose' === i || + '\\mathpunct' === i || + '\\mathord' === i || + '\\mathinner' === i + ) { + s = te.toSpeakableFragment(t.body, e); + break; + } + let a = t.body, + o = t.latex; + if ( + (('delim' !== t.type && 'sizeddelim' !== t.type) || + (a = o = t.delim), + 'text' === e.speechMode) + ) + s += a; + else { + if ( + ('mbin' === t.type && + (s += ''), + a) + ) { + const t = ms[a] || (o ? ms[o.trim()] : ''); + if (t) s += ' ' + t; + else { + const t = o + ? (function(t) { + let e = Je.NOTES[t]; + return ( + e || + '\\' !== t.charAt(0) || + (e = + ' ' + + t.replace('\\', '') + + ' '), + Array.isArray(e) && + (e = e[0]), + e + ); + })(o.trim()) + : ''; + s += + t || + (function(t) { + let i = ''; + return ( + e.textToSpeechMarkup + ? /[a-z]/.test(t) + ? (i += + ' ' + + t + + '') + : /[A-Z]/.test(t) + ? (i += + 'capital ' + + t.toLowerCase()) + : (i += t) + : /[a-z]/.test(t) + ? (i += + " '" + + t.toUpperCase() + + "'") + : /[A-Z]/.test(t) + ? (i += + " 'capital " + + t.toUpperCase() + + "'") + : (i += t), + i + ); + })(a); + } + } else s += te.toSpeakableFragment(t.body, e); + 'mbin' === t.type && (s += ''); + } + break; + } + case 'mop': + if ('​' !== t.body) { + const a = t.latex ? t.latex.trim() : ''; + if ('\\sum' === a) + if (t.superscript && t.subscript) { + let i = te.toSpeakableFragment( + t.superscript, + e + ); + i = i.trim(); + let a = te.toSpeakableFragment( + t.subscript, + e + ); + (a = a.trim()), + (s += + ' the summation from ' + + a + + ' to ' + + i + + ' of '), + (r = !0); + } else if (t.subscript) { + let i = te.toSpeakableFragment( + t.subscript, + e + ); + (i = i.trim()), + (s += + ' the summation from ' + + i + + ' of '), + (r = !0); + } else s += ' the summation of'; + else if ('\\prod' === a) + if (t.superscript && t.subscript) { + let i = te.toSpeakableFragment( + t.superscript, + e + ); + i = i.trim(); + let a = te.toSpeakableFragment( + t.subscript, + e + ); + (a = a.trim()), + (s += + ' the product from ' + + a + + ' to ' + + i + + ' of '), + (r = !0); + } else if (t.subscript) { + let i = te.toSpeakableFragment( + t.subscript, + e + ); + (i = i.trim()), + (s += + ' the product from ' + + i + + ' of '), + (r = !0); + } else s += ' the product of '; + else if ('\\int' === a) + if (t.superscript && t.subscript) { + let a = te.toSpeakableFragment( + t.superscript, + e + ); + a = a.trim(); + let o = te.toSpeakableFragment( + t.subscript, + e + ); + (o = o.trim()), + (s += + ' the integral from ' + + i(o) + + ' to ' + + i(a) + + ' of '), + (r = !0); + } else + s += + ' the integral of '; + else if ('string' == typeof t.body) { + s += + ms[t.body] || + ms[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 = te.toSpeakableFragment(t.body, e)), + us(t.body) + ? (s += ' crossed out ' + n + ' , ') + : (s += + ' crossed out ' + n + '. End cross out'); + } + if (!r && t.superscript) { + let i = te.toSpeakableFragment(t.superscript, e); + i = i.trim(); + const a = i.replace(/<[^>]*>/g, ''); + if (us(t.superscript)) { + if ('math' === e.speechMode) { + const e = (function(t) { + if (t && Array.isArray(t)) + for (const e of t) + if ('first' !== e.type && e.id) + return e.id.toString(); + return ''; + })(t.superscript); + e && (s += ''); + } + '′' === a + ? (s += ' prime ') + : '2' === a + ? (s += ' squared ') + : '3' === a + ? (s += ' cubed ') + : isNaN(parseInt(a)) + ? (s += ' to the ' + i + '; ') + : (s += + ' to the ' + + a + + ' power; '); + } else + isNaN(parseInt(a)) + ? (s += ' raised to the ' + i + '; ') + : (s += + ' raised to the ' + + a + + ' power; '); + } + if (!r && t.subscript) { + let i = te.toSpeakableFragment(t.subscript, e); + (i = i.trim()), + us(t.subscript) + ? (s += ' sub ' + i) + : (s += ' subscript ' + i + '. End subscript. '); + } + } + return s; + }), + (te.toSpeakableText = function(t, e) { + const i = e + ? JSON.parse(JSON.stringify(e)) + : { textToSpeechMarkup: '', textToSpeechRules: 'mathlive' }; + if ( + ((i.speechMode = 'math'), + window.sre && 'sre' === i.textToSpeechRules) + ) { + i.generateID = !0; + const e = te.toMathML(t, i); + return e + ? (i.textToSpeechMarkup && + ((i.textToSpeechRulesOptions = + i.textToSpeechRulesOptions || {}), + (i.textToSpeechRulesOptions.markup = + i.textToSpeechMarkup), + 'ssml' === i.textToSpeechRulesOptions.markup && + (i.textToSpeechRulesOptions.markup = + 'ssml_step'), + (i.textToSpeechRulesOptions.rate = + i.speechEngineRate)), + i.textToSpeechRulesOptions && + window.sre.System.getInstance().setupEngine( + i.textToSpeechRulesOptions + ), + window.sre.System.getInstance().toSpeech(e)) + : ''; + } + let s = te.toSpeakableFragment(t, i); + if ('ssml' === i.textToSpeechMarkup) { + let t = ''; + i.speechEngineRate && + (t = ''), + (s = + '' + + t + + '

    ' + + s + + '

    ' + + (t ? '    ' : '') + + ''); + } else + s = + 'mac' === i.textToSpeechMarkup && + 'mac' === + (function(t) { + let e = 'other'; + return ( + navigator && + navigator.platform && + navigator.userAgent && + (/^(mac)/i.test(navigator.platform) + ? (e = 'mac') + : /^(win)/i.test(navigator.platform) + ? (e = 'win') + : /(android)/i.test( + navigator.userAgent + ) + ? (e = 'android') + : /(iphone)/i.test( + navigator.userAgent + ) || + /(ipod)/i.test( + navigator.userAgent + ) || + /(ipad)/i.test( + navigator.userAgent + ) + ? (e = 'ios') + : /\bCrOS\b/i.test( + navigator.userAgent + ) && (e = 'chromeos')), + e === t ? t : '!' + t + ); + })('mac') + ? s + .replace(//g, '') + .replace(//g, '[[emph+]]') + .replace(/<\/emphasis>/g, '') + .replace( + //g, + '[[slc $1]]' + ) + .replace(/]*>/g, '') + .replace(/<\/say-as>/g, '') + : s.replace(/<[^>]*>/g, '').replace(/\s{2,}/g, ' '); + return s; + }); + class vs { + constructor(t, e) { + this.$setConfig(e || {}), + (this.element = t), + (t.mathfield = this), + (this.originalContent = t.innerHTML); + let i = this.element.textContent; + i && (i = i.trim()); + let s = ''; + this.config.substituteTextArea + ? 'string' == typeof this.config.substituteTextArea + ? (s += this.config.substituteTextArea) + : (s += '') + : /android|ipad|ipod|iphone/i.test(navigator.userAgent) + ? (s += + "\n \n \n ") + : (s += + ''), + (s += + ''), + this.config.virtualKeyboardMode || + (this.config.virtualKeyboardMode = + window.matchMedia && + window.matchMedia('(any-pointer: coarse)').matches + ? 'onfocus' + : 'off'), + 'manual' === this.config.virtualKeyboardMode + ? ((s += `')) + : (s += ''), + (s += ''), + (s += + '\n
    \n \n \n
    \n '), + (this.element.innerHTML = s); + let a = 0; + 'function' == typeof this.config.substituteTextArea + ? (this.textarea = this.config.substituteTextArea()) + : (this.textarea = this.element.children[ + a++ + ].firstElementChild), + (this.field = this.element.children[a].children[0]), + this.field.addEventListener( + 'wheel', + t => { + t.preventDefault(), t.stopPropagation(); + let e = void 0 === t.deltaX ? t.detail : -t.deltaX; + isFinite(e) || (e = t.wheelDelta / 10), + this.field.scroll({ + top: 0, + left: this.field.scrollLeft - 5 * e, + }); + }, + { passive: !1 } + ), + (this.virtualKeyboardToggleDOMNode = this.element.children[ + a++ + ].children[1]), + this._attachButtonHandlers( + this.virtualKeyboardToggleDOMNode, + { + default: 'toggleVirtualKeyboard', + alt: 'toggleVirtualKeyboardAlt', + shift: 'toggleVirtualKeyboardShift', + } + ), + (this.ariaLiveText = this.element.children[a].children[0]), + (this.accessibleNode = this.element.children[ + a++ + ].children[1]), + (this.popover = bs( + 'mathlive-popover-panel', + 'ML__popover' + )), + (this.keystrokeCaption = bs( + 'mathlive-keystroke-caption-panel', + 'ML__keystroke-caption' + )), + (this.keystrokeCaptionVisible = !1), + (this.virtualKeyboardVisible = !1), + (this.keystrokeBuffer = ''), + (this.keystrokeBufferStates = []), + (this.keystrokeBufferResetTimer = null), + (this.suggestionIndex = 0), + (this.mode = e.defaultMode || 'math'), + (this.smartModeSuppressed = !1), + (this.style = {}), + (this.blurred = !0), + gs(this.element, 'focus', this), + gs(this.element, 'blur', this), + gs(this.textarea, 'cut', this), + gs(this.textarea, 'copy', this), + gs(this.textarea, 'paste', this), + He.delegateKeyboardEvents(this.textarea, { + container: this.element, + allowDeadKey: () => 'text' === this.mode, + 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), + }), + window.PointerEvent + ? gs(this.field, 'pointerdown', this) + : gs(this.field, 'touchstart:active mousedown', this), + gs(window, 'resize', this); + const o = { ...e }; + (o.onSelectionDidChange = vs.prototype._onSelectionDidChange.bind( + this + )), + (o.onContentDidChange = vs.prototype._onContentDidChange.bind( + this + )), + (o.onAnnounce = this.config.onAnnounce), + (o.macros = this.config.macros), + (o.removeExtraneousParentheses = this.config.removeExtraneousParentheses), + (this.mathlist = new Oe.EditableMathlist(o, this)), + (this.undoManager = new (class { + constructor(t) { + (this.mathlist = t), + (this.maximumDepth = 1e3), + (this.record = !1), + (this.canCoalesce = !1), + this.reset(); + } + reset() { + (this.stack = []), (this.index = -1); + } + startRecording() { + this.record = !0; + } + canUndo() { + return this.index > 0; + } + canRedo() { + return this.index !== this.stack.length - 1; + } + undo(t) { + this.canUndo() && + (t && + 'function' == + typeof t.onUndoStateWillChange && + t.onUndoStateWillChange( + this.mathlist.target, + 'undo' + ), + this.restore(this.stack[this.index - 1], t), + (this.index -= 1), + t && + 'function' == + typeof t.onUndoStateDidChange && + t.onUndoStateDidChange( + this.mathlist.target, + 'undo' + ), + (this.canCoalesce = !1)); + } + redo(t) { + this.canRedo() && + (t && + 'function' === t.onUndoStateWillChange && + t.onUndoStateWillChange( + this.mathlist.target, + 'redo' + ), + (this.index += 1), + this.restore(this.stack[this.index], t), + t && + 'function' == + typeof t.onUndoStateDidChange && + t.onUndoStateDidChange( + this.mathlist.target, + 'redo' + ), + (this.canCoalesce = !1)); + } + pop() { + this.canUndo() && + ((this.index -= 1), this.stack.pop()); + } + snapshot(t) { + this.record && + (t && + 'function' === t.onUndoStateWillChange && + t.onUndoStateWillChange( + this.mathlist.target, + 'snapshot' + ), + this.stack.splice( + this.index + 1, + this.stack.length - this.index - 1 + ), + this.stack.push({ + latex: this.mathlist.root.toLatex(), + selection: this.mathlist.toString(), + }), + this.index++, + this.stack.length > this.maximumDepth && + this.stack.shift(), + t && + 'function' == + typeof t.onUndoStateDidChange && + t.onUndoStateDidChange( + this.mathlist.target, + 'snapshot' + ), + (this.canCoalesce = !1)); + } + snapshotAndCoalesce(t) { + this.canCoalesce && this.pop(), + this.snapshot(t), + (this.canCoalesce = !0); + } + save() { + return { + latex: this.mathlist.root.toLatex(), + selection: this.mathlist.toString(), + }; + } + restore(t, e) { + const i = this.mathlist.suppressChangeNotifications; + void 0 !== e.suppressChangeNotifications && + (this.mathlist.suppressChangeNotifications = + e.suppressChangeNotifications), + this.mathlist.insert(t ? t.latex : '', { + mode: 'math', + insertionMode: 'replaceAll', + selectionMode: 'after', + format: 'latex', + ...e, + }), + this.mathlist.setPath( + t + ? t.selection + : [{ relation: 'body', offset: 0 }] + ), + (this.mathlist.suppressChangeNotifications = i); + } + })(this.mathlist)), + i.length > 0 && this.$latex(i), + this.undoManager.startRecording(), + this.undoManager.snapshot(this.config); + } + handleEvent(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( + () => ks(this) && this._onResize() + )); + break; + case 'cut': + this._onCut(t); + break; + case 'copy': + this._onCopy(t); + break; + case 'paste': + this._onPaste(t); + } + } + $revertToOriginalContent() { + (this.element.innerHTML = this.originalContent), + (this.element.mathfield = null), + delete this.accessibleNode, + delete this.ariaLiveText, + delete this.field, + ys(this.textarea, 'cut', this), + ys(this.textarea, 'copy', this), + ys(this.textarea, 'paste', this), + this.textarea.remove(), + delete this.textarea, + this.virtualKeyboardToggleDOMNode.remove(), + delete this.virtualKeyboardToggleDOMNode, + xs(this.popover), + xs(this.keystrokeCaption), + xs(this.virtualKeyboard), + xs( + document.getElementById('mathlive-alternate-keys-panel') + ), + ys(this.element, 'pointerdown', this), + ys(this.element, 'touchstart:active mousedown', this), + ys(this.element, 'focus', this), + ys(this.element, 'blur', this), + ys(window, 'resize', this), + delete this.element; + } + _resetKeystrokeBuffer() { + (this.keystrokeBuffer = ''), + (this.keystrokeBufferStates = []), + clearTimeout(this.keystrokeBufferResetTimer); + } + _getCaretPosition() { + const t = (function t(e) { + if ( + e.classList.contains('ML__caret') || + e.classList.contains('ML__text-caret') || + e.classList.contains('ML__command-caret') + ) + return e; + let i; + return ( + Array.from(e.children).forEach(function(e) { + i = i || t(e); + }), + i + ); + })(this.field); + if (t) { + const e = t.getBoundingClientRect(); + return { x: e.right, y: e.bottom, height: e.height }; + } + return null; + } + _getSelectionBounds() { + const t = this.field.querySelectorAll('.ML__selected'); + if (t && t.length > 0) { + const e = { + top: 1 / 0, + bottom: -1 / 0, + left: 1 / 0, + right: -1 / 0, + }; + t.forEach(t => { + const i = t.getBoundingClientRect(); + i.left < e.left && (e.left = i.left), + i.right > e.right && (e.right = i.right), + i.bottom > e.bottom && (e.bottom = i.bottom), + i.top < e.top && (e.top = i.top); + }); + const i = this.field.getBoundingClientRect(), + s = e.right - e.left, + a = e.bottom - e.top; + return ( + (e.left = Math.ceil( + e.left - i.left + this.field.scrollLeft + )), + (e.right = e.left + s), + (e.top = Math.ceil(e.top - i.top)), + (e.bottom = e.top + a), + e + ); + } + return null; + } + _pathFromPoint(t, e, i) { + let s; + (i = i || {}).bias = i.bias || 0; + const a = (function t(e, i, s) { + let a = { + element: null, + distance: Number.POSITIVE_INFINITY, + }, + o = !0; + if (e.getAttribute('data-atom-id')) { + a.element = e; + const t = e.getBoundingClientRect(), + n = i - (t.left + t.right) / 2, + r = s - (t.top + t.bottom) / 2; + (a.distance = n * n + r * r), + (o = i >= t.left && i <= t.right); + } + return ( + o && + e.children && + Array.from(e.children).forEach(function(e) { + const o = t(e, i, s); + o.element && + o.distance <= a.distance && + (a = o); + }), + a + ); + })(this.field, t, e).element, + o = a ? a.getAttribute('data-atom-id') : null; + if (o) { + const 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 = me.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; + } + _onPointerDown(t) { + const e = this; + let i, + s = !1, + a = !1, + o = !1; + if (1 !== t.buttons) return; + function n(t) { + window.PointerEvent + ? (ys(e.field, 'pointermove', h), + ys( + e.field, + 'pointerend pointerleave pointercancel', + n + ), + e.field.releasePointerCapture(t.pointerId)) + : (ys(e.field, 'touchmove', h), + ys(e.field, 'touchend touchleave', n), + ys(window, 'mousemove', h), + ys(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(); + ws && + Math.abs(ws.x - d) < 5 && + Math.abs(ws.y - p) < 5 && + Date.now() < ws.time + 500 + ? ((Ss += 1), (ws.time = m)) + : ((ws = { x: d, y: p, time: m }), (Ss = 1)); + const u = this.field.getBoundingClientRect(); + if ( + d >= u.left && + d <= u.right && + p >= u.top && + p <= u.bottom + ) { + if ( + (this.$hasFocus() || + ((o = !0), + this.textarea.focus && this.textarea.focus()), + this._resetKeystrokeBuffer(), + (this.smartModeSuppressed = !1), + (i = this._pathFromPoint(d, p, { bias: 0 })), + i) + ) { + let r = document.createElement('div'); + (r.className = 'ML__scroller'), + this.element.appendChild(r), + (r.style.left = u.left - 200 + 'px'), + (r = document.createElement('div')), + (r.className = 'ML__scroller'), + this.element.appendChild(r), + (r.style.left = u.right + 'px'), + t.shiftKey + ? (this.mathlist.setRange( + this.mathlist.path, + i + ), + (i = me.clone(this.mathlist.path)), + (i[i.length - 1].offset -= 1)) + : this.mathlist.setPath(i, 0), + (o = !0), + (this.style = {}), + 3 === t.detail || Ss > 2 + ? (n(t), + (3 !== t.detail && 3 !== Ss) || + this.mathlist.selectAll_()) + : s || + ((s = !0), + window.PointerEvent + ? (gs(e.field, 'pointermove', h), + gs( + e.field, + 'pointerend pointercancel pointerup', + n + ), + e.field.setPointerCapture(t.pointerId)) + : (gs(window, 'blur', n), + t.touches + ? (gs(t.target, 'touchmove', h), + gs(t.target, 'touchend', n)) + : (gs(window, 'mousemove', h), + gs(window, 'mouseup', n))), + (2 !== t.detail && 2 !== Ss) || + ((a = !0), this.mathlist.selectGroup_())); + } + } else ws = null; + o && this._requestUpdate(), t.preventDefault(); + } + _onSelectionDidChange() { + 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 && + (Je.hidePopover(this), + this.mathlist.removeCommandString()); + } + Je.updatePopoverPosition(this, { deferred: !0 }), + 'function' == typeof this.config.onSelectionDidChange && + this.config.onSelectionDidChange(this); + } + _onContentDidChange() { + 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); + } + _nextAtomSpeechText(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 As(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 += As(this, '', r)) + : 0 !== a.offset && + (o += n ? 'end of ' + n : 'unknown'), + o + ); + } + _announce(t, e, i) { + 'function' == typeof this.config.onAnnounce && + this.config.onAnnounce(this, t, e, i); + } + _onFocus() { + this.blurred && + ((this.blurred = !1), + this.textarea.focus && this.textarea.focus(), + 'onfocus' === this.config.virtualKeyboardMode && + this.showVirtualKeyboard_(), + Je.updatePopoverPosition(this), + this.config.onFocus && this.config.onFocus(this), + this._requestUpdate()); + } + _onBlur() { + 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)); + } + _onResize() { + 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'), + Je.updatePopoverPosition(this); + } + toggleKeystrokeCaption_() { + (this.keystrokeCaptionVisible = !this.keystrokeCaptionVisible), + (this.keystrokeCaption.innerHTML = ''), + this.keystrokeCaptionVisible || + (this.keystrokeCaption.style.visibility = 'hidden'); + } + _showKeystroke(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 = + '' + + (ve.stringify(t) || t) + + '' + + 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); + } + } + $perform(t) { + if (!t) return !1; + let e, + i = !1, + s = [], + a = !1; + if ( + (Array.isArray(t) + ? ((e = t[0]), (s = t.slice(1))) + : (e = t), + (e = e.replace(/-\w/g, t => t[1].toUpperCase())), + (e += '_'), + 'function' == typeof this.mathlist[e]) + ) { + if ( + (/^(delete|transpose|add)/.test(e) && + this._resetKeystrokeBuffer(), + /^(delete|transpose|add)/.test(e) && + 'command' !== this.mode && + (this.undoManager.pop(), + this.undoManager.snapshot(this.config)), + this.mathlist[e](...s), + /^(delete|transpose|add)/.test(e) && + 'command' !== this.mode && + this.undoManager.snapshot(this.config), + /^(delete)/.test(e) && 'command' === this.mode) + ) { + const t = this.mathlist.extractCommandStringAroundInsertionPoint(), + e = At.suggest(t); + 0 === e.length + ? Je.hidePopover(this) + : Je.showPopoverWithLatex( + this, + e[0].match, + e.length > 1 + ); + } + (a = !0), (i = !0); + } else + 'function' == typeof this[e] && + ((a = this[e](...s)), (i = !0)); + return ( + (this.mathlist.isCollapsed() && + !/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test( + e + )) || + (this._resetKeystrokeBuffer(), (this.style = {})), + a && this._requestUpdate(), + i + ); + } + performWithFeedback_(t) { + return ( + this.$focus(), + this.config.keypressVibration && + navigator.vibrate && + navigator.vibrate(3), + 'moveToNextPlaceholder' === + (t = t.replace(/-\w/g, t => t[1].toUpperCase())) || + 'moveToPreviousPlaceholder' === t || + 'complete' === t + ? this.returnKeypressSound + ? (this.returnKeypressSound.load(), + this.returnKeypressSound.play().catch(t => {})) + : this.keypressSound && + (this.keypressSound.load(), + this.keypressSound.play().catch(t => {})) + : ('deletePreviousChar' !== t && + 'deleteNextChar' !== t && + 'deletePreviousWord' !== t && + 'deleteNextWord' !== t && + 'deleteToGroupStart' !== t && + 'deleteToGroupEnd' !== t && + 'deleteToMathFieldStart' !== t && + 'deleteToMathFieldEnd' !== t) || + !this.deleteKeypressSound + ? this.keypressSound && + (this.keypressSound.load(), + this.keypressSound.play().catch(t => {})) + : (this.deleteKeypressSound.load(), + this.deleteKeypressSound.play().catch(t => {})), + this.$perform(t) + ); + } + convertLastAtomsToText_(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))), + s || + (a.applyStyle({ mode: 'text' }), + (a.latex = a.body)), + (i -= 1), + (t -= 1); + } + this.mathlist.contentDidChange(); + } + convertLastAtomsToMath_(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))), + s || a.applyStyle({ mode: 'math', type: 'mord' }), + (i -= 1), + (t -= 1); + } + this.removeIsolatedSpace_(), this.mathlist.contentDidChange(); + } + removeIsolatedSpace_() { + 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); + } + } + getTextBeforeAnchor_() { + 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))) + )), + i || (t = s.body + t), + (e -= 1); + } + return t; + } + smartMode_(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 = He.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 ( + /(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test( + s + ) && + !/(αβγ)$/.test(s) + ) + return ( + this.convertLastAtomsToText_(t => + /(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test( + t.body + ) + ), + !0 + ); + if (/\?|\./.test(i)) return !0; + } + return !1; + } + _onKeystroke(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 = He.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 Oe.EditableMathlist(); + (e.root = te.makeRoot( + 'math', + he.parseTokens( + n( + 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 = ve.forString( + this.mode, + t, + e.slice(a), + this.config + )), + (a += 1); + } + (s = a - 1), + (this.keystrokeBuffer += t), + this.keystrokeBufferStates.push( + this.undoManager.save() + ), + ve.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 = ve.selectorForKeystroke(this.mode, t)), + !i && !a) + ) + return !0; + this.mathlist.decorateCommandStringAroundInsertionPoint(!1); + const r = this.mathlist.parent(); + if ( + ('moveAfterParent' === a && + r && + 'leftright' === r.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)$/.test( + i + ) + ) { + const t = { + ...this.mathlist.anchorStyle(), + ...this.style, + }; + this.mathlist.insert(He.eventToChar(e), { + suppressChangeNotifications: !0, + mode: this.mode, + style: t, + }); + const i = this.mode; + this.undoManager.snapshotAndCoalesce(this.config), + this.undoManager.restore( + this.keystrokeBufferStates[s], + { + ...this.config, + suppressChangeNotifications: !0, + } + ), + (this.mode = i); + } + this.mathlist.contentWillChange(); + const t = this.mathlist.suppressChangeNotifications; + this.mathlist.suppressChangeNotifications = !0; + const a = { ...this.mathlist.anchorStyle(), ...this.style }; + this.mathlist.insert(i, { + format: 'latex', + mode: this.mode, + style: a, + smartFence: !0, + }), + this.removeIsolatedSpace_(), + i.endsWith(' ') && + ((this.mode = 'text'), + this.mathlist.insert(' ', { + mode: 'text', + style: a, + })), + (this.mathlist.suppressChangeNotifications = t), + this.mathlist.contentDidChange(), + this.undoManager.snapshot(this.config), + this._requestUpdate(), + this._announce('replacement'), + o && this._resetKeystrokeBuffer(); + } + return ( + this.scrollIntoView(), + e && + e.preventDefault && + (e.preventDefault(), e.stopPropagation()), + !1 + ); + } + _onTypedText(t, e) { + if ( + ((e = e || {}).focus && this.$focus(), + e.feedback && + (this.config.keypressVibration && + navigator.vibrate && + navigator.vibrate(3), + this.keypressSound && + (this.keypressSound.load(), + this.keypressSound.play().catch(t => {}))), + e.commandMode && + 'command' !== this.mode && + this.switchMode_('command'), + this.mathlist.decorateCommandStringAroundInsertionPoint(!1), + e.simulateKeystroke) + ) { + const e = t.charAt(0), + i = He.charToEvent(e); + if (!this.$keystroke(He.keyboardEventToString(i), i)) + return; + } + let i = '', + a = !1; + if (this.pasteInProgress) + (this.pasteInProgress = !1), + this.mathlist.insert(t, { + smartFence: this.config.smartFence, + mode: 'math', + }); + else { + const e = { ...this.mathlist.anchorStyle(), ...this.style }, + o = s(t); + for (const t of o) + if ('command' === this.mode) { + this.mathlist.removeSuggestion(), + (this.suggestionIndex = 0); + const e = this.mathlist.extractCommandStringAroundInsertionPoint(), + s = At.suggest(e + t); + (a = s.length > 1), + 0 === s.length + ? (this.mathlist.insert(t, { + mode: 'command', + }), + /^\\[a-zA-Z\\*]+$/.test(e + t) && + this.mathlist.decorateCommandStringAroundInsertionPoint( + !0 + ), + Je.hidePopover(this)) + : (this.mathlist.insert(t, { + mode: 'command', + }), + s[0].match !== e + t && + this.mathlist.insertSuggestion( + s[0].match, + -s[0].match.length + e.length + 1 + ), + (i = s[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.$perform(i); + } else + this.config.smartSuperscript && + 'superscript' === this.mathlist.relation() && + /[0-9]/.test(t) && + 0 === + this.mathlist + .siblings() + .filter(t => 'first' !== t.type).length + ? (this.mathlist.insert(t, { + mode: 'math', + style: e, + }), + this.mathlist.moveAfterParent_()) + : this.mathlist.insert(t, { + mode: 'math', + style: e, + smartFence: this.config.smartFence, + }); + } else + 'text' === this.mode && + this.mathlist.insert(t, { + mode: 'text', + style: e, + }); + } + 'command' !== this.mode && + this.undoManager.snapshotAndCoalesce(this.config), + this._requestUpdate(), + this.scrollIntoView(), + Je.showPopoverWithLatex(this, i, a); + } + _hash() { + let t = 0; + const e = this.mathlist.root.toLatex(!1); + for (let i = 0; i < e.length; i++) + (t = 31 * t + e.charCodeAt(i)), (t |= 0); + return Math.abs(t); + } + _requestUpdate() { + this.dirty || + ((this.dirty = !0), + requestAnimationFrame(t => ks(this) && this._render())); + } + _render(t) { + (t = t || {}), + (this.dirty = !1), + window.mathlive || (window.mathlive = {}), + this.mathlist.anchor() || + (this.mathlist.path = [ + { relation: 'body', offset: 0 }, + ]), + this.mathlist.forEach(t => { + (t.caret = ''), (t.isSelected = !1); + }); + const e = this.$hasFocus(); + this.mathlist.isCollapsed() + ? (this.mathlist.anchor().caret = e ? this.mode : '') + : this.mathlist.forEachSelected(t => { + t.isSelected = !0; + }); + const i = te.decompose( + { + mathstyle: 'displaystyle', + generateID: { + seed: this._hash(), + groupNumbers: t.forHighlighting, + }, + macros: this.config.macros, + }, + this.mathlist.root + ), + s = $.makeSpan(i, 'ML__base'); + s.attributes = { translate: 'no', 'aria-hidden': 'true' }; + const a = $.makeSpan('', 'ML__strut'); + a.setStyle('height', s.height, 'em'); + const o = [a]; + if (0 !== s.depth) { + const t = $.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 = $.makeSpan(o, 'ML__mathlive'); + (this.field.innerHTML = n.toMarkup( + 0, + this.config.horizontalSpacingScale + )), + this.field.classList.toggle('ML__focused', e), + (this.accessibleNode.innerHTML = + "" + + te.toMathML(this.mathlist.root, this.config) + + ''); + const r = this._getSelectionBounds(); + if (r) { + const t = document.createElement('div'); + t.classList.add('ML__selection'), + (t.style.position = 'absolute'), + (t.style.left = r.left + 'px'), + (t.style.top = r.top + 'px'), + (t.style.width = Math.ceil(r.right - r.left) + 'px'), + (t.style.height = + Math.ceil(r.bottom - r.top - 1) + 'px'), + this.field.insertBefore(t, this.field.childNodes[0]); + } + } + _onPaste() { + return (this.pasteInProgress = !0), !0; + } + _onCut() { + return ( + setTimeout( + function() { + this.$clearSelection(), this._requestUpdate(); + }.bind(this), + 0 + ), + !0 + ); + } + _onCopy(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(); + } + formatMathlist(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 = te.toSpeakableText(t, this.config); + else if ('spoken-text' === e) { + const e = this.config.textToSpeechMarkup; + (this.config.textToSpeechMarkup = ''), + (i = te.toSpeakableText(t, this.config)), + (this.config.textToSpeechMarkup = e); + } else if ( + 'spoken-ssml' === e || + 'spoken-ssml-withHighlighting' === e + ) { + const s = this.config.textToSpeechMarkup, + a = this.config.generateID; + (this.config.textToSpeechMarkup = 'ssml'), + 'spoken-ssml-withHighlighting' === e && + (this.config.generateID = !0), + (i = te.toSpeakableText(t, this.config)), + (this.config.textToSpeechMarkup = s), + (this.config.generateID = a); + } else if ('json' === e) { + const e = te.toAST(t, this.config); + i = JSON.stringify(e); + } else + 'ASCIIMath' === e && + (i = (function t(e, i) { + if (!e) return ''; + if (Array.isArray(e)) { + let i = ''; + if (0 === e.length) return ''; + if ( + ('first' === e[0].type && e.shift(), + 'text' === e[0].mode) + ) { + let s = 0; + for ( + i = '"'; + e[s] && 'text' === e[s].mode; + + ) + (i += e[s].body), s++; + i += '"' + t(e.slice(s)); + } else { + let s = 0; + for (; e[s] && 'math' === e[s].mode; ) + (i += t(e[s])), s++; + i += t(e.slice(s)); + } + return i.trim(); + } + if ('text' === e.mode) return '"' + e.body + '"'; + let s = ''; + const a = e.latex ? e.latex.trim() : null; + let o; + switch (e.type) { + case 'group': + case 'root': + s = t(e.body); + break; + case 'array': + break; + case 'genfrac': + (e.leftDelim || e.rightDelim) && + (s += + '.' !== e.leftDelim && e.leftDelim + ? e.leftDelim + : '{:'), + e.hasBarLine + ? ((s += '('), + (s += t(e.numer)), + (s += ')/('), + (s += t(e.denom)), + (s += ')')) + : ((s += '(' + t(e.numer) + '),'), + (s += '(' + t(e.denom) + ')')), + (e.leftDelim || e.rightDelim) && + (s += + '.' !== e.rightDelim && + e.rightDelim + ? e.rightDelim + : '{:'); + break; + case 'surd': + e.index + ? (s += + 'root(' + + t(e.index) + + ')(' + + t(e.body) + + ')') + : (s += 'sqrt(' + t(e.body) + ')'); + break; + case 'leftright': + (s += + '.' !== e.leftDelim && e.leftDelim + ? e.leftDelim + : '{:'), + (s += t(e.body)), + (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 = + hi[a] || + a || + ('string' == typeof e.body + ? e.body + : '')), + '\\' === s[0] && (s += ''), + (o = a + ? a.match( + /[{]?\\char"([0-9abcdefABCDEF]*)[}]?/ + ) + : null), + o + ? (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 && hi[a] + ? hi[a] + : a && di[a] + ? di[a] + : e.body; + break; + case 'mopen': + case 'mclose': + s += e.body; + break; + case 'mpunct': + s = di[a] || a; + break; + case 'mop': + '​' !== e.body && + ((s = ''), + (s += + '\\operatorname' === a + ? t(e.body) + : e.body || a), + (s += ' ')); + break; + case 'mathstyle': + case 'box': + case 'spacing': + case 'enclose': + break; + case 'space': + s = ' '; + } + if (e.subscript) { + s += '_'; + const i = t(e.subscript); + i.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(i) + ? (s += '(' + i + ')') + : (s += i); + } + if (e.superscript) { + s += '^'; + const i = t(e.superscript); + i.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(i) + ? (s += '(' + i + ')') + : (s += i); + } + return s; + })(t, this.config)); + return i; + } + $text(t) { + return this.formatMathlist(this.mathlist.root, t); + } + $selectedText(t) { + const e = this.mathlist.getSelectedAtoms(); + if (!e) return ''; + const i = te.makeRoot('math', e); + return this.formatMathlist(i, t); + } + $selectionIsCollapsed() { + return this.mathlist.isCollapsed(); + } + $selectionDepth() { + return this.mathlist.path.length; + } + _superscriptDepth() { + 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; + } + _subscriptDepth() { + 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; + } + $selectionAtStart() { + return 0 === this.mathlist.startOffset(); + } + $selectionAtEnd() { + return ( + this.mathlist.endOffset() >= + this.mathlist.siblings().length - 1 + ); + } + groupIsSelected() { + return ( + 0 === this.mathlist.startOffset() && + this.mathlist.endOffset() >= + this.mathlist.siblings().length - 1 + ); + } + $latex(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(); + } + $el() { + return this.element; + } + undo() { + return this.complete_(), this.undoManager.undo(this.config), !0; + } + redo() { + return this.complete_(), this.undoManager.redo(this.config), !0; + } + scrollIntoView() { + this.dirty && this._render(); + let t = this._getCaretPosition(); + const e = this.field.getBoundingClientRect(); + if (!t) { + const i = this._getSelectionBounds(); + i && + (t = { + x: i.right + e.left - this.field.scrollLeft, + y: i.top + e.top - this.field.scrollTop, + }); + } + if (t) { + const i = t.x - window.scrollX; + i < e.left + ? this.field.scroll({ + top: 0, + left: i - e.left + this.field.scrollLeft - 20, + behavior: 'smooth', + }) + : i > e.right && + this.field.scroll({ + top: 0, + left: i - e.right + this.field.scrollLeft + 20, + behavior: 'smooth', + }); + } + } + scrollToStart() { + this.field.scroll(0, 0); + } + scrollToEnd() { + const t = this.field.getBoundingClientRect(); + this.field.scroll(t.left - window.scrollX, 0); + } + enterCommandMode_() { + this.switchMode_('command'); + } + copyToClipboard_() { + return ( + this.$focus(), + this.mathlist.isCollapsed() && this.$select(), + document.execCommand('copy'), + !1 + ); + } + cutToClipboard_() { + return this.$focus(), document.execCommand('cut'), !0; + } + pasteFromClipboard_() { + return this.$focus(), document.execCommand('paste'), !0; + } + $insert(t, e) { + if ('string' == typeof t && t.length > 0) { + if ( + ((e = e || {}).focus && this.$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; + } + switchMode_(t, e, i) { + this._resetKeystrokeBuffer(), + (this.smartModeSuppressed = + /text|math/.test(this.mode) && /text|math/.test(t)), + e && + this.$insert(e, { + format: 'latex', + mode: { math: 'text', text: 'math' }[t], + }), + this.mathlist.decorateCommandStringAroundInsertionPoint(!1), + 'command' === t + ? (this.mathlist.removeSuggestion(), + Je.hidePopover(this), + (this.suggestionIndex = 0), + this.virtualKeyboardVisible && + this.switchKeyboardLayer_('lower-command'), + this.mathlist.insert('', { mode: 'math' })) + : (this.mode = t), + i && this.$insert(i, { format: 'latex', mode: t }), + 'function' == typeof this.config.onModeChange && + this.config.onModeChange(this, this.mode), + this._requestUpdate(); + } + complete_(t) { + if (((t = t || {}), Je.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 (At.commandAllowed(t, e)) { + const i = he.parseTokens( + n(e), + t, + null, + this.config.macros + ); + this.mathlist.spliceCommandStringAroundInsertionPoint( + i + ); + } else { + const i = he.parseTokens( + n(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; + } + _updateSuggestion() { + this.mathlist.positionInsertionPointAfterCommitedCommand(), + this.mathlist.removeSuggestion(); + const t = this.mathlist.extractCommandStringAroundInsertionPoint(), + e = At.suggest(t); + if (0 === e.length) + Je.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), + Je.showPopoverWithLatex(this, e[i].match, e.length > 1); + } + this._requestUpdate(); + } + nextSuggestion_() { + return ( + (this.suggestionIndex += 1), this._updateSuggestion(), !1 + ); + } + previousSuggestion_() { + if (((this.suggestionIndex -= 1), this.suggestionIndex < 0)) { + this.mathlist.removeSuggestion(); + const t = this.mathlist.extractCommandStringAroundInsertionPoint(), + e = At.suggest(t); + this.suggestionIndex = e.length - 1; + } + return this._updateSuggestion(), !1; + } + _attachButtonHandlers(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) + ), + gs(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))); + } + }), + gs(t, 'mouseleave touchcancel', function() { + t.classList.remove('pressed'); + }), + gs(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, + }) + )); + } + }), + gs(t, 'mouseenter', function(e) { + 1 === e.buttons && t.classList.add('pressed'); + }), + gs(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.$perform(JSON.parse(o)), + e.stopPropagation(), + e.preventDefault(); + }); + } + _makeButton(t, e, i, s) { + const a = document.createElement('span'); + return ( + (a.innerHTML = t), + e && a.classList.add([].slice.call(e.split(' '))), + i && a.setAttribute('aria-label', i), + this._attachButtonHandlers(a, s), + a + ); + } + showAlternateKeys_(t, e) { + const i = bs( + 'mathlive-alternate-keys-panel', + 'ML__keyboard alternate-keys' + ); + this.virtualKeyboard.classList.contains('material') && + i.classList.add('material'), + e.length >= 7 + ? (i.style.width = '286px') + : 4 === e.length || 2 === e.length + ? (i.style.width = '146px') + : 1 === e.length + ? (i.style.width = '86px') + : (i.style.width = '146px'), + (i.style.height = 'auto'); + let s = ''; + for (const t of e) + (s += ''), + (i.innerHTML = s), + ci.makeKeycap( + this, + i.getElementsByTagName('li'), + 'performAlternateKeys' + ); + const a = this.virtualKeyboard + .querySelector( + 'div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="' + + t + + '"]' + ) + .getBoundingClientRect(); + if (a) { + a.top - i.clientHeight < 0 && + ((i.style.width = 'auto'), + e.length <= 6 + ? (i.style.height = '56px') + : e.length <= 12 + ? (i.style.height = '108px') + : (i.style.height = '205px')); + const t = (a.top - i.clientHeight + 5).toString() + 'px', + s = + Math.max( + 0, + Math.min( + window.innerWidth - i.offsetWidth, + (a.left + a.right - i.offsetWidth) / 2 + ) + ) + 'px'; + (i.style.transform = 'translate(' + s + ',' + t + ')'), + i.classList.add('is-visible'); + } + return !1; + } + hideAlternateKeys_() { + const t = document.getElementById( + 'mathlive-alternate-keys-panel' + ); + return ( + t && + (t.classList.remove('is-visible'), + (t.innerHTML = ''), + xs(t)), + !1 + ); + } + performAlternateKeys_(t) { + return this.hideAlternateKeys_(), this.$perform(t); + } + switchKeyboardLayer_(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].dataset.layer === t) { + i = !0; + break; + } + if (i) + for (let i = 0; i < e.length; i++) + e[i].dataset.layer === t + ? e[i].classList.add('is-visible') + : e[i].classList.remove('is-visible'); + this.$focus(); + } + return !0; + } + shiftKeyboardLayer_() { + const t = this.virtualKeyboard.querySelectorAll( + 'div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action' + ); + if (t) + for (let e = 0; e < t.length; e++) { + const i = t[e]; + let s = i.getAttribute('data-shifted'); + if (s || /^[a-z]$/.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; + } + unshiftKeyboardLayer_() { + 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; + } + insertAndUnshiftKeyboardLayer_(t) { + return this.$insert(t), this.unshiftKeyboardLayer_(), !0; + } + toggleVirtualKeyboardAlt_() { + let t = !1; + return ( + this.virtualKeyboard && + ((t = this.virtualKeyboard.classList.contains( + 'material' + )), + this.virtualKeyboard.remove(), + delete this.virtualKeyboard, + (this.virtualKeyboard = null)), + this.showVirtualKeyboard_(t ? '' : 'material'), + !1 + ); + } + toggleVirtualKeyboardShift_() { + this.config.virtualKeyboardLayout = { + qwerty: 'azerty', + azerty: 'qwertz', + qwertz: 'dvorak', + dvorak: 'colemak', + colemak: 'qwerty', + }[this.config.virtualKeyboardLayout]; + let t = this.virtualKeyboard + ? this.virtualKeyboard.querySelector( + 'div.keyboard-layer.is-visible' + ) + : null; + return ( + (t = t ? t.id : ''), + this.virtualKeyboard && + (this.virtualKeyboard.remove(), + delete this.virtualKeyboard, + (this.virtualKeyboard = null)), + this.showVirtualKeyboard_(), + t && this.switchKeyboardLayer_(t), + !1 + ); + } + showVirtualKeyboard_(t) { + return ( + (this.virtualKeyboardVisible = !1), + this.toggleVirtualKeyboard_(t), + !1 + ); + } + hideVirtualKeyboard_() { + return ( + (this.virtualKeyboardVisible = !0), + this.toggleVirtualKeyboard_(), + !1 + ); + } + toggleVirtualKeyboard_(t) { + if ( + ((this.virtualKeyboardVisible = !this + .virtualKeyboardVisible), + this.virtualKeyboardVisible) + ) { + this.virtualKeyboard + ? this.virtualKeyboard.classList.add('is-visible') + : ((this.virtualKeyboard = ci.make(this, t)), + gs( + this.virtualKeyboard, + 'touchstart:passive mousedown', + function() { + e.$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 + ); + } + $applyStyle(t) { + if ( + (this._resetKeystrokeBuffer(), + (t = (function(t) { + const e = {}; + return ( + 'string' == typeof t.mode && + (e.mode = t.mode.toLowerCase()), + 'string' == typeof t.color && (e.color = t.color), + 'string' == typeof t.backgroundColor && + (e.backgroundColor = t.backgroundColor), + 'string' == typeof t.fontFamily && + (e.fontFamily = t.fontFamily), + 'string' == typeof t.series && + (e.fontSeries = t.series), + 'string' == typeof t.fontSeries && + (e.fontSeries = t.fontSeries.toLowerCase()), + e.fontSeries && + (e.fontSeries = + { bold: 'b', medium: 'm', normal: 'mn' }[ + e.fontSeries + ] || e.fontSeries), + 'string' == typeof t.shape && + (e.fontShape = t.shape), + 'string' == typeof t.fontShape && + (e.fontShape = t.fontShape.toLowerCase()), + e.fontShape && + (e.fontShape = + { + italic: 'it', + up: 'n', + upright: 'n', + normal: 'n', + }[e.fontShape] || e.fontShape), + 'string' == typeof t.size + ? (e.fontSize = t.size) + : 'number' == typeof t.size && + (e.fontSize = + 'size' + + Math.min(0, Math.max(10, t.size))), + 'string' == typeof t.fontSize && + (e.fontSize = t.fontSize.toLowerCase()), + e.fontSize && + (e.fontSize = + { + tiny: 'size1', + scriptsize: 'size2', + footnotesize: 'size3', + small: 'size4', + normal: 'size5', + normalsize: 'size5', + large: 'size6', + Large: 'size7', + LARGE: 'size8', + huge: 'size9', + Huge: 'size10', + }[e.fontSize] || e.fontSize), + e + ); + })(t)).mode) + ) { + if (this.mathlist.isCollapsed()) this.switchMode_(t.mode); + else { + const t = this.mode, + e = + 'math' === + (this.mathlist.anchorMode() || + this.config.default) + ? 'text' + : 'math'; + let i = this.$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 + ); + } + $hasFocus() { + return ( + document.hasFocus() && + document.activeElement === this.textarea + ); + } + $focus() { + this.$hasFocus() || + (this.textarea.focus && this.textarea.focus(), + this._announce('line')); + } + $blur() { + this.$hasFocus() && this.textarea.blur && this.textarea.blur(); + } + $select() { + this.mathlist.selectAll_(); + } + $clearSelection() { + this.mathlist.delete_(); + } + $keystroke(t, e) { + return this._onKeystroke(t, e); + } + $typedText(t) { + this._onTypedText(t); + } + typedText_(t, e) { + return this._onTypedText(t, e); + } + $setConfig(t) { + if ( + (this.config || + (this.config = { + smartFence: !0, + smartSuperscript: !0, + scriptDepth: [1 / 0, 1 / 0], + removeExtraneousParentheses: !0, + overrideDefaultInlineShortcuts: !1, + virtualKeyboard: '', + virtualKeyboardLayout: 'qwerty', + namespace: '', + }), + (this.config = { ...this.config, ...t }), + void 0 !== this.config.scriptDepth && + !Array.isArray(this.config.scriptDepth)) + ) { + const t = parseInt(this.config.scriptDepth); + this.config.scriptDepth = [t, t]; + } + if ( + (void 0 === this.config.removeExtraneousParentheses && + (this.config.removeExtraneousParentheses = !0), + (this.config.onAnnounce = t.onAnnounce || Ms), + (this.config.macros = Object.assign( + {}, + At.MACROS, + this.config.macros + )), + !/^[a-z]*[-]?$/.test(this.config.namespace)) + ) + throw Error( + 'options.namespace must be a string of lowercase characters only' + ); + /-$/.test(this.config.namespace) || + (this.config.namespace += '-'), + (Qe.locale = this.config.locale || Qe.locale), + Qe.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', + }[Qe.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 = 0.5), + (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 = 0.5), + (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 = 0.5)), + this.config.keypressSound.return && + ((this.returnKeypressSound = new Audio()), + (this.returnKeypressSound.preload = 'none'), + (this.returnKeypressSound.src = this.config.keypressSound.return), + (this.returnKeypressSound.volume = 0.5)), + this.config.keypressSound.delete && + ((this.deleteKeypressSound = new Audio()), + (this.deleteKeypressSound.preload = 'none'), + (this.deleteKeypressSound.src = this.config.keypressSound.delete), + (this.deleteKeypressSound.volume = 0.5)))), + this.config.plonkSound && + ((this.plonkSound = new Audio()), + (this.plonkSound.preload = 'none'), + (this.plonkSound.src = this.config.plonkSound), + (this.plonkSound.volume = 0.5)); + } + speak_(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'), + e.withHighlighting && (s.generateID = !0)); + const a = te.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 + ); + } + } + let ws, + Ss = 0; + function As(t, e, i) { + const s = Object.assign({}, t.config); + return ( + (s.textToSpeechMarkup = ''), + (s.textToSpeechRulesOptions = s.textToSpeechRulesOptions || {}), + (s.textToSpeechRulesOptions.markup = 'none'), + e + te.toSpeakableText(i, s) + ); + } + function Ms(t, e, i, s) { + let a = ''; + 'plonk' === e + ? (t.plonkSound && + (t.plonkSound.load(), t.plonkSound.play().catch(t => {})), + t._resetKeystrokeBuffer()) + : 'delete' === e + ? (a = As(t, 'deleted: ', s)) + : 'focus' === e || /move/.test(e) + ? (a = + (t.mathlist.isCollapsed() ? '' : 'selected: ') + + t._nextAtomSpeechText(i)) + : 'replacement' === e + ? (a = As(t, '', t.mathlist.sibling(0))) + : 'line' === e + ? ((a = As(t, '', t.mathlist.root)), + (t.accessibleNode.innerHTML = + '' + + te.toMathML(t.mathlist.root, t.config) + + ''), + t.textarea.setAttribute('aria-label', 'after: ' + a)) + : (a = s ? As(t, e + ' ', s) : e); + const o = /\u00a0/.test(t.ariaLiveText.textContent) ? '   ' : '   '; + t.ariaLiveText.textContent = a + o; + } + (vs.prototype.undo_ = vs.prototype.undo), + (vs.prototype.redo_ = vs.prototype.redo), + (vs.prototype.scrollIntoView_ = vs.prototype.scrollIntoView), + (vs.prototype.scrollToStart_ = vs.prototype.scrollToStart), + (vs.prototype.scrollToEnd_ = vs.prototype.scrollToEnd), + (vs.prototype.insert_ = vs.prototype.$insert); + var Cs = { isValidMathfield: ks, MathField: vs }; + function _s(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 Ts(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; + (r = n.indexOf(e)), + -1 !== r && + ((c = r), + c > 0 && + a.push({ type: 'text', data: n.slice(0, c) }), + (l = !1)); + let h = !1; + for (; !h; ) { + if (l) { + if (((r = n.indexOf(e, c)), -1 === r)) { + h = !0; + break; + } + c !== r && + a.push({ type: 'text', data: n.slice(c, r) }), + (c = r); + } else { + if (((r = _s(i, n, c + e.length)), -1 === r)) { + 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 Ls(t, e) { + let i = [{ type: 'text', data: t }]; + for (let t = 0; t < e.inline.length; t++) { + const s = e.inline[t]; + i = Ts(i, s[0], s[1], 'textstyle'); + } + for (let t = 0; t < e.display.length; t++) { + const s = e.display[t]; + i = Ts(i, s[0], s[1], 'displaystyle'); + } + return i; + } + function Fs(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 = + "" + + e.renderToMathML(t, e) + + ''; + } 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()), + i.appendChild(Fs(t, void 0, e, !0)); + else { + const s = Ls(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(Fs(s[t].data, s[t].mathstyle, e, !0)); + } + return i; + } + const zs = { + 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 Es = { + renderMathInElement: function(t, e) { + try { + if ( + (((e = Object.assign( + {}, + zs, + e + )).ignoreClassPattern = new RegExp(e.ignoreClass)), + (e.processClassPattern = new RegExp(e.processClass)), + (e.processScriptTypePattern = new RegExp( + e.processScriptType + )), + (e.macros = At.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 = Fs( + 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(Fs(t, void 0, i, !0)) + ); + const s = Ls(t, i.TeX.delimiters); + if (1 === s.length && 'math' === s[0].type) + return ( + (e.textContent = ''), + void e.appendChild( + Fs(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 = Fs(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 qs(t, e, i, s) { + e = e || 'displaystyle'; + const a = n(t), + o = he.parseTokens(a, 'math', null, s); + if ('mathlist' === i) return o; + let r = te.decompose({ mathstyle: e }, o); + if (((r = $.coalesce(r)), 'span' === i)) return r; + const l = $.makeSpan(r, 'ML__base'), + c = $.makeSpan('', 'ML__strut'); + c.setStyle('height', l.height, 'em'); + const h = [c]; + if (0 !== l.depth) { + const t = $.makeSpan('', 'ML__strut--bottom'); + t.setStyle('height', l.height + l.depth, 'em'), + t.setStyle('vertical-align', -l.depth, 'em'), + h.push(t); + } + return h.push(l), $.makeSpan(h, 'ML__mathlive').toMarkup(); + } + function Ps(t, e) { + if (!te.toMathML) return ''; + ((e = e || {}).macros = e.macros || {}), + Object.assign(e.macros, At.MACROS); + const i = he.parseTokens(n(t), 'math', null, e.macros); + return te.toMathML(i, e); + } + function Is(t, e) { + if (!te.toSpeakableText) return ''; + ((e = e || {}).macros = e.macros || {}), + Object.assign(e.macros, At.MACROS); + const i = he.parseTokens(n(t), 'math', null, e.macros); + return te.toSpeakableText(i, e); + } + function Bs(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 => {}); + } + }); + } + } else e.speechEngine; + else { + const e = new SpeechSynthesisUtterance(t); + window && window.speechSynthesis.speak(e); + } + } + function Os(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 Rs(t) { + let e = t; + if ('string' == typeof t && ((e = document.getElementById(t)), !e)) + throw Error(`The element with ID "${t}" could not be found.`); + return e; + } + function Ks(t, e) { + Es && + (((e = e || {}).renderToMarkup = e.renderToMarkup || qs), + (e.renderToMathML = e.renderToMathML || Ps), + (e.renderToSpeakableText = e.renderToSpeakableText || Is), + (e.macros = e.macros || At.MACROS), + Es.renderMathInElement(Rs(t), e)); + } + function Ns(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: qs, + latexToMathML: Ps, + latexToSpeakableText: Is, + latexToAST: function(t, e) { + if (!te.toAST) return {}; + ((e = e || {}).macros = e.macros || {}), + Object.assign(e.macros, At.MACROS); + const i = he.parseTokens(n(t), 'math', null, e.macros); + return te.toAST(i, e); + }, + astToLatex: function(t, e) { + return ps(t, e); + }, + makeMathField: function(t, e) { + if (!Cs) throw Error('The MathField module is not loaded.'); + return ( + ((e = e || {}).handleSpeak = e.handleSpeak || Bs), + (e.handleReadAloud = e.handleReadAloud || Os), + new Cs.MathField(Rs(t), e) + ); + }, + renderMathInDocument: function(t) { + Ks(document.body, t); + }, + renderMathInElement: Ks, + revertToOriginalContent: function(t, e) { + (t = (t = Rs(t)).children[1]) instanceof Cs.MathField + ? t.revertToOriginalContent() + : (Ns((e = e || {})), + (t.innerHTML = t.getAttribute( + 'data-' + (e.namespace || '') + 'original-content' + ))); + }, + getOriginalContent: function(t, e) { + return (t = (t = Rs(t)).children[1]) instanceof Cs.MathField + ? t.originalContent + : (Ns((e = e || {})), + t.getAttribute( + 'data-' + (e.namespace || '') + 'original-content' + )); + }, + readAloud: Os, + 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), + s < 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 + ? 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=_e(e.array);i>=0;i--)t(Ce(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},we.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},we.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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=_e(i.array);let s=e-1;for(;!t&&s0)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)}},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=Se(this);i=this.extent+t;const a=e+i;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)},we.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=Se(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),n<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&&n0&&(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)}},we.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)},we.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=Se(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"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 this.suppressChangeNotifications=i,!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},we.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},we.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},we.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];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=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},we.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=At.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;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),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},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new te.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},we.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))},we.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++},we.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.row0){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 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>ks(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,ys(this.textarea,"cut",this),ys(this.textarea,"copy",this),ys(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,xs(this.popover),xs(this.keystrokeCaption),xs(this.virtualKeyboard),xs(document.getElementById("mathlive-alternate-keys-panel")),ys(this.element,"pointerdown",this),ys(this.element,"touchstart:active mousedown",this),ys(this.element,"focus",this),ys(this.element,"blur",this),ys(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let i;return Array.from(e.children).forEach((function(e){i=i||t(e)})),i}(this.field);if(t){const e=t.getBoundingClientRect();return{x:e.right,y:e.bottom,height:e.height}}return null}_getSelectionBounds(){const t=this.field.querySelectorAll(".ML__selected");if(t&&t.length>0){const e={top:1/0,bottom:-1/0,left:1/0,right:-1/0};t.forEach(t=>{const i=t.getBoundingClientRect();i.lefte.right&&(e.right=i.right),i.bottom>e.bottom&&(e.bottom=i.bottom),i.top=t.left&&i<=t.right}return o&&e.children&&Array.from(e.children).forEach((function(e){const o=t(e,i,s);o.element&&o.distance<=a.distance&&(a=o)})),a}(this.field,t,e).element,o=a?a.getAttribute("data-atom-id"):null;if(o){const 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=me.pathFromString(e[0]).path,0===i.bias){const e=a.getBoundingClientRect();tt.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()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){if(this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,i=this._pathFromPoint(d,p,{bias:0}),i){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),i=me.clone(this.mathlist.path),i[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||Ss>2?(n(t),3!==t.detail&&3!==Ss||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(gs(e.field,"pointermove",h),gs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(gs(window,"blur",n),t.touches?(gs(t.target,"touchmove",h),gs(t.target,"touchend",n)):(gs(window,"mousemove",h),gs(window,"mouseup",n))),2!==t.detail&&2!==Ss||(a=!0,this.mathlist.selectGroup_()))}}else ws=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 As(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+=As(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof 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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=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(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),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(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),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){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))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()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(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(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=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=ve.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=At.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;iks(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1});const e=this.$hasFocus();this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0});const i=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=$.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=$.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=$.makeSpan("","ML__strut--bottom");t.setStyle("height",s.height+s.depth,"em"),t.setStyle("vertical-align",-s.depth,"em"),o.push(t)}o.push(s);const n=$.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=hi[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&hi[a]?hi[a]:a&&di[a]?di[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=di[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=te.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const i=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=he.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.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),Je.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(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)),gs(t,"mousedown 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=_e(e.array);i>=0;i--)t(Ce(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},we.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},we.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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=_e(i.array);let s=e-1;for(;!t&&s0)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)}},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=Se(this);i=this.extent+t;const a=e+i;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)},we.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=Se(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),n<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&&n0&&(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)}},we.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)},we.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=Se(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"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 this.suppressChangeNotifications=i,!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},we.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},we.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},we.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];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=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},we.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=At.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;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),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},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new te.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},we.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))},we.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++},we.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.row0){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 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>ks(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,ys(this.textarea,"cut",this),ys(this.textarea,"copy",this),ys(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,xs(this.popover),xs(this.keystrokeCaption),xs(this.virtualKeyboard),xs(document.getElementById("mathlive-alternate-keys-panel")),ys(this.element,"pointerdown",this),ys(this.element,"touchstart:active mousedown",this),ys(this.element,"focus",this),ys(this.element,"blur",this),ys(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let i;return Array.from(e.children).forEach((function(e){i=i||t(e)})),i}(this.field);if(t){const e=t.getBoundingClientRect();return{x:e.right,y:e.bottom,height:e.height}}return null}_getSelectionBounds(){const t=this.field.querySelectorAll(".ML__selected");if(t&&t.length>0){const e={top:1/0,bottom:-1/0,left:1/0,right:-1/0};t.forEach(t=>{const i=t.getBoundingClientRect();i.lefte.right&&(e.right=i.right),i.bottom>e.bottom&&(e.bottom=i.bottom),i.top=t.left&&i<=t.right}return o&&e.children&&Array.from(e.children).forEach((function(e){const o=t(e,i,s);o.element&&o.distance<=a.distance&&(a=o)})),a}(this.field,t,e).element,o=a?a.getAttribute("data-atom-id"):null;if(o){const 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=me.pathFromString(e[0]).path,0===i.bias){const e=a.getBoundingClientRect();tt.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()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){if(this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,i=this._pathFromPoint(d,p,{bias:0}),i){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),i=me.clone(this.mathlist.path),i[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||Ss>2?(n(t),3!==t.detail&&3!==Ss||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(gs(e.field,"pointermove",h),gs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(gs(window,"blur",n),t.touches?(gs(t.target,"touchmove",h),gs(t.target,"touchend",n)):(gs(window,"mousemove",h),gs(window,"mouseup",n))),2!==t.detail&&2!==Ss||(a=!0,this.mathlist.selectGroup_()))}}else ws=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 As(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+=As(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof 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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=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(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),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(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),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){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))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()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(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(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=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=ve.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=At.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;iks(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1});const e=this.$hasFocus();this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0});const i=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=$.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=$.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=$.makeSpan("","ML__strut--bottom");t.setStyle("height",s.height+s.depth,"em"),t.setStyle("vertical-align",-s.depth,"em"),o.push(t)}o.push(s);const n=$.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=hi[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&hi[a]?hi[a]:a&&di[a]?di[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=di[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=te.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const i=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=he.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.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),Je.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(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)),gs(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))}})),gs(t,"mouseleave touchcancel",(function(){t.classList.remove("pressed")})),gs(t,"touchmove:passive",(function(t){t.preventDefault();for(let e=0;e=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+="";s="
      "+s+"
    ",i.innerHTML=s,ci.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}hideAlternateKeys_(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",xs(t)),!1}performAlternateKeys_(t){return this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(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=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",e.withHighlighting&&(s.generateID=!0));const a=te.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}}let ws,Ss=0;function As(t,e,i){const s=Object.assign({},t.config);return s.textToSpeechMarkup="",s.textToSpeechRulesOptions=s.textToSpeechRulesOptions||{},s.textToSpeechRulesOptions.markup="none",e+te.toSpeakableText(i,s)}function Ms(t,e,i,s){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>{})),t._resetKeystrokeBuffer()):"delete"===e?a=As(t,"deleted: ",s):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(i):"replacement"===e?a=As(t,"",t.mathlist.sibling(0)):"line"===e?(a=As(t,"",t.mathlist.root),t.accessibleNode.innerHTML=''+te.toMathML(t.mathlist.root,t.config)+"",t.textarea.setAttribute("aria-label","after: "+a)):a=s?As(t,e+" ",s):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}vs.prototype.undo_=vs.prototype.undo,vs.prototype.redo_=vs.prototype.redo,vs.prototype.scrollIntoView_=vs.prototype.scrollIntoView,vs.prototype.scrollToStart_=vs.prototype.scrollToStart,vs.prototype.scrollToEnd_=vs.prototype.scrollToEnd,vs.prototype.insert_=vs.prototype.$insert;var Cs={isValidMathfield:ks,MathField:vs};function _s(t,e,i){let s=i,a=0;const o=t.length;for(;s0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(r=n.indexOf(e,c),-1===r){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(r=_s(i,n,c+e.length),-1===r){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"+e.renderToMathML(t,e)+""}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(),i.appendChild(Fs(t,void 0,e,!0));else{const s=Ls(t,e.TeX.delimiters);if(1===s.length&&"text"===s[0].type)return null;i=document.createDocumentFragment();for(let t=0;t{})}}))}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Os(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.time0&&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 Rs(t){let e=t;if("string"==typeof t&&(e=document.getElementById(t),!e))throw Error(`The element with ID "${t}" could not be found.`);return e}function Ks(t,e){Es&&((e=e||{}).renderToMarkup=e.renderToMarkup||qs,e.renderToMathML=e.renderToMathML||Ps,e.renderToSpeakableText=e.renderToSpeakableText||Is,e.macros=e.macros||At.MACROS,Es.renderMathInElement(Rs(t),e))}function Ns(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}const $s={latexToMarkup:qs,latexToMathML:Ps,latexToSpeakableText:Is,latexToAST:function(t,e){if(!te.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,At.MACROS);const i=he.parseTokens(n(t),"math",null,e.macros);return te.toAST(i,e)},astToLatex:function(t,e){return ps(t,e)},makeMathField:function(t,e){if(!Cs)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Bs,e.handleReadAloud=e.handleReadAloud||Os,new Cs.MathField(Rs(t),e)},renderMathInDocument:function(t){Ks(document.body,t)},renderMathInElement:Ks,revertToOriginalContent:function(t,e){(t=(t=Rs(t)).children[1])instanceof Cs.MathField?t.revertToOriginalContent():(Ns(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=Rs(t)).children[1])instanceof Cs.MathField?t.originalContent:(Ns(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Os,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,s=|<=|>>|<<|:=|!=|\*\*|\+\+|--)$/.test(digraph) - ? digraph - : ''; + const result = /^(>=|<=|>>|<<|:=|!=)$/.test(digraph) ? digraph : ''; if (result) { expr.index += 1; } @@ -1734,7 +1733,7 @@ MathAtom.MathAtom.prototype.toAST = function(options) { result = wrapFn( 'pow', parse(this.body, options), - wrapFn('divide', 1, parse(this.index, options)) + wrapFn('divide', wrapNum(1), parse(this.index, options)) ); } else { result = wrapFn('sqrt', parse(this.body, options)); From 8d47e060a5a0b794e6de282f0d515fbf4f253789 Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Tue, 4 Feb 2020 15:48:50 -0800 Subject: [PATCH 07/28] Fix #282: some virtual key presses produce an incorrect output --- src/editor/editor-virtualKeyboard.js | 58 ++++++++++++++-------------- 1 file changed, 29 insertions(+), 29 deletions(-) diff --git a/src/editor/editor-virtualKeyboard.js b/src/editor/editor-virtualKeyboard.js index bc20c84d9..e84b2ec10 100644 --- a/src/editor/editor-virtualKeyboard.js +++ b/src/editor/editor-virtualKeyboard.js @@ -474,8 +474,8 @@ const LAYERS = {
  • -
  • e
    • -
  • i
    • +
  • e
    • +
  • i
    • @@ -484,9 +484,9 @@ const LAYERS = {
    • -
    • x ²
      • -
    • x ⬚
      • -
    • +
    • x ²
      • +
    • x ⬚
      • +
    • (
      • @@ -576,7 +576,7 @@ const LAYERS = {
    • ⊂
    • ⊃
    • !
      • -
    • o′
      • +
    • o′
    • └o┘
    • ∂
    • ∅
      • @@ -589,9 +589,9 @@ const LAYERS = {
    • ⊆
    • ⊇
      • -
    • -
    • -
    • +
    • +
    • +
    • ∗
    • -
    • -
    • -
    • -
    • -
    • +
    • +
    • +
    • +
    • +
    • -
    • -
    • -
    • -
    • -
    • -
    • +
    • +
    • +
    • +
    • +
    • +
    • -
    • -
    • -
    • -
    • -
    • -
    • +
    • +
    • +
    • +
    • +
    • +
    • ⌫
    • (
    • )
      • -
    • -
    • +
    • +
    •  
    @@ -827,7 +827,7 @@ const LAYERS = {
  • -
  • +
    • From 3eecc9b3409ad7593b2be53caefa38f612eb413d Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Tue, 4 Feb 2020 15:50:27 -0800 Subject: [PATCH 08/28] bug: fix #364. Placeholder incorrectly selected when clicked on in some cases --- src/editor/editor-editableMathlist.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/editor/editor-editableMathlist.js b/src/editor/editor-editableMathlist.js index 697e64496..d7be0e41d 100644 --- a/src/editor/editor-editableMathlist.js +++ b/src/editor/editor-editableMathlist.js @@ -275,7 +275,7 @@ EditableMathlist.prototype.setPath = function(selection, extent) { this.path = newPath; if (extent === 0 && this.anchor().type === 'placeholder') { // select the placeholder - newPath[newPath.length - 1].offset = 0; + newPath[newPath.length - 1].offset = this.anchorOffset() - 1; extent = 1; } selection = { From 2ebda2211c6f42f0136c28032c4a73d359a49bb3 Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Wed, 5 Feb 2020 15:10:53 -0800 Subject: [PATCH 09/28] feat: #368 --- css/mathlive.core.less | 14 +- css/mathlive.less | 796 +++++++++++++++++++-------------- src/core/mathAtom.js | 19 +- src/editor/editor-mathfield.js | 15 + 4 files changed, 506 insertions(+), 338 deletions(-) diff --git a/css/mathlive.core.less b/css/mathlive.core.less index 64b775cdc..ca6fa9c15 100644 --- a/css/mathlive.core.less +++ b/css/mathlive.core.less @@ -72,7 +72,7 @@ margin-right: -1ex; position: relative; color: var(--caret); - animation: ML__caret-command-blink 1.05s step-end forwards infinite; + animation: ML__caret-blink 1.05s step-end forwards infinite; } /* Text mode */ @@ -85,7 +85,7 @@ background: hsla(var(--hue), 40%, 50%, 0.1); } -@keyframes ML__caret-command-blink { +@keyframes ML__caret-blink { from, to { opacity: 1; @@ -95,16 +95,6 @@ } } -@keyframes ML__caret-blink { - from, - to { - border-color: var(--caret); - } - 50% { - border-color: transparent; - } -} - /* Style for the invisible textarea element which is used to capture keyboard events. We're just trying really hard to make sure it doesn't show. */ diff --git a/css/mathlive.less b/css/mathlive.less index 2cb3bac33..4f67eaa83 100755 --- a/css/mathlive.less +++ b/css/mathlive.less @@ -1,35 +1,36 @@ -@import "__fonts.less"; +@import '__fonts.less'; -@monospace: 'Source Code Pro', Consolas, 'Roboto Mono', Menlo, 'Bitstream Vera Sans Mono', - 'DejaVu Sans Mono', Monaco, Courier, monospace; -@system: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", - "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", - "Droid Sans", "Helvetica Neue", sans-serif; +@monospace: 'Source Code Pro', Consolas, 'Roboto Mono', Menlo, + 'Bitstream Vera Sans Mono', 'DejaVu Sans Mono', Monaco, Courier, monospace; +@system: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', + 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', + sans-serif; @math_main: KaTeX_Main; @math_math: KaTeX_Math; @font-face { font-family: KaTeX_Main; - src: url(fonts/KaTeX_Main-Regular.woff2) format("woff2"),url(fonts/KaTeX_Main-Regular.woff) format("woff"); + src: url(fonts/KaTeX_Main-Regular.woff2) format('woff2'), + url(fonts/KaTeX_Main-Regular.woff) format('woff'); font-weight: 400; font-style: normal; - font-display: "swap"; + font-display: 'swap'; } @font-face { font-family: KaTeX_Math; - src: url(fonts/KaTeX_Math-Italic.woff2) format("woff2"),url(fonts/KaTeX_Math-Italic.woff) format("woff"); + src: url(fonts/KaTeX_Math-Italic.woff2) format('woff2'), + url(fonts/KaTeX_Math-Italic.woff) format('woff'); font-weight: 400; font-style: italic; - font-display: "swap"; + font-display: 'swap'; } - -@shadow1: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24); -@shadow2: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23); -@shadow3: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23); -@shadow4: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22); -@shadow5: 0 19px 38px rgba(0,0,0,0.30), 0 15px 12px rgba(0,0,0,0.22); +@shadow1: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24); +@shadow2: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23); +@shadow3: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); +@shadow4: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22); +@shadow5: 0 19px 38px rgba(0, 0, 0, 0.3), 0 15px 12px rgba(0, 0, 0, 0.22); // 0 8px 10px 1px rgba(0, 0, 0, .14), // 0 3px 14px 2px rgba(0, 0, 0, .12), @@ -44,7 +45,6 @@ @secondary: #cd0030; // @highlight: rgba(243, 243, 21, 0.28); - // The mu (mathematical unit) is defined by TeX as 1/18 em @mu: 1/18em; @@ -65,7 +65,7 @@ by default, so the font-style below is only useful when a fallback font is used */ - font-style: italic; + font-style: italic; } .ML__mathrm { @@ -118,39 +118,80 @@ font-style: italic; } -.ML__series_ul { font-weight: 100; } -.ML__series_el { font-weight: 100; } -.ML__series_l { font-weight: 200; } -.ML__series_sl { font-weight: 300; } - -.ML__series_sb { font-weight: 500; } -.ML__bold { font-weight: 700; } -.ML__series_eb { font-weight: 800; } -.ML__series_ub { font-weight: 900; } - -.ML__series_uc { font-stretch: ultra-condensed; } -.ML__series_ec { font-stretch: extra-condensed; } -.ML__series_c { font-stretch: condensed; } -.ML__series_sc { font-stretch: semi-condensed; } -.ML__series_sx { font-stretch: semi-expanded; } -.ML__series_x { font-stretch: expanded; } -.ML__series_ex { font-stretch: extra-expanded; } -.ML__series_ux { font-stretch: ultra-expanded; } +.ML__series_ul { + font-weight: 100; +} +.ML__series_el { + font-weight: 100; +} +.ML__series_l { + font-weight: 200; +} +.ML__series_sl { + font-weight: 300; +} +.ML__series_sb { + font-weight: 500; +} +.ML__bold { + font-weight: 700; +} +.ML__series_eb { + font-weight: 800; +} +.ML__series_ub { + font-weight: 900; +} -.ML__it { font-style: italic; } -.ML__shape_ol { -webkit-text-stroke: 1px black; text-stroke: 1px black; color: transparent; } -.ML__shape_sc { font-variant: small-caps; } -.ML__shape_sl { font-style: oblique; } +.ML__series_uc { + font-stretch: ultra-condensed; +} +.ML__series_ec { + font-stretch: extra-condensed; +} +.ML__series_c { + font-stretch: condensed; +} +.ML__series_sc { + font-stretch: semi-condensed; +} +.ML__series_sx { + font-stretch: semi-expanded; +} +.ML__series_x { + font-stretch: expanded; +} +.ML__series_ex { + font-stretch: extra-expanded; +} +.ML__series_ux { + font-stretch: ultra-expanded; +} +.ML__it { + font-style: italic; +} +.ML__shape_ol { + -webkit-text-stroke: 1px black; + text-stroke: 1px black; + color: transparent; +} +.ML__shape_sc { + font-variant: small-caps; +} +.ML__shape_sl { + font-style: oblique; +} /* First level emphasis */ -.ML__emph { color: #bc2612; } +.ML__emph { + color: #bc2612; +} /* Second level emphasis */ -.ML__emph .ML__emph{ color: #0c7f99; } - - - +.ML__emph .ML__emph { + color: #0c7f99; +} .ML__mathlive { // Style used to highlight a portion of the expression when speaking @@ -158,29 +199,39 @@ // See https://www.w3.org/WAI/RD/2012/text-customization/r11 // and https://www.cs.cmu.edu/~jbigham/pubs/pdfs/2017/colors.pdf .highlight { - color: #007CB2; // Complementary to peach - background: #edd1b0; // Peach + color: #007cb2; // Complementary to peach + background: #edd1b0; // Peach } // This value is also used in fontMetrics.js, if you change it make sure the // values match. - @ptperem: 10.0; + @ptperem: 10; @nulldelimiterspace: 1.2em / @ptperem; - @thinspace: 0.16667em; // 3mu - @mediumspace: 0.22222em; // 4mu - @thickspace: 0.27778em; // 5mu - + @thinspace: 0.16667em; // 3mu + @mediumspace: 0.22222em; // 4mu + @thickspace: 0.27778em; // 5mu + .reset-textstyle.scriptstyle { + font-size: 0.7em; + } + .reset-textstyle.scriptscriptstyle { + font-size: 0.5em; + } - .reset-textstyle.scriptstyle { font-size: 0.7em; } - .reset-textstyle.scriptscriptstyle { font-size: 0.5em; } - - .reset-scriptstyle.textstyle { font-size: 1.42857em; } - .reset-scriptstyle.scriptscriptstyle { font-size: 0.71429em; } + .reset-scriptstyle.textstyle { + font-size: 1.42857em; + } + .reset-scriptstyle.scriptscriptstyle { + font-size: 0.71429em; + } - .reset-scriptscriptstyle.textstyle { font-size: 2em; } - .reset-scriptscriptstyle.scriptstyle { font-size: 1.4em; } + .reset-scriptscriptstyle.textstyle { + font-size: 2em; + } + .reset-scriptscriptstyle.scriptstyle { + font-size: 1.4em; + } .style-wrap { position: relative; } @@ -210,12 +261,12 @@ .mfrac { // line-height: 0; - > span { + > span { // justify-content: center; text-align: center; } - .frac-line { + .frac-line { width: 100%; // &:before { @@ -226,13 +277,13 @@ // } &:after { - content: ""; + content: ''; display: block; margin-top: -0.04em; border-bottom-style: solid; - border-bottom-width: 0.04em; - min-height: 0.04em; - /* There's a bug since Chrome 62 where + border-bottom-width: 0.04em; + min-height: 0.04em; + /* There's a bug since Chrome 62 where sub-pixel border lines don't draw at some zoom levels (110%, 90%). Setting the min-height seems to work around it. */ @@ -285,7 +336,7 @@ margin-right: 2em; } } - + .mspace { display: inline-block; @@ -369,18 +420,18 @@ &:before { border-bottom-style: solid; border-bottom-width: 0.04em; - content: ""; + content: ''; display: block; } &:after { border-bottom-style: solid; - border-bottom-width: 0.04em; - min-height: thin; /* There's a bug since Chrome 62 where + border-bottom-width: 0.04em; + min-height: thin; /* There's a bug since Chrome 62 where sub-pixel border lines don't draw at some zoom levels (110%, 90%). Setting the min-height seems to work around it. */ - content: ""; + content: ''; display: block; margin-top: -1px; } @@ -400,12 +451,12 @@ width: 100%; &:before { - content: ""; + content: ''; display: block; margin-top: -0.04em; border-bottom-style: solid; - border-bottom-width: .04em; - min-height: 0.5px; + border-bottom-width: 0.04em; + min-height: 0.5px; /* There's a bug since Chrome 62 where sub-pixel border lines don't draw at some zoom levels (110%, 90%). Setting the min-height seems to work around it. @@ -414,7 +465,7 @@ &:after { border-bottom-width: 1px; - content: " "; + content: ' '; display: block; margin-top: -0.1em; } @@ -423,19 +474,20 @@ > .root { // These values are taken from the definition of `\r@@t`, // `\mkern 5mu` and `\mkern -10mu`. - margin-left: 5*(@mu); - margin-right: -10*(@mu); + margin-left: 5 * (@mu); + margin-right: -10 * (@mu); } } - .sizing, .fontsize-ensurer { + .sizing, + .fontsize-ensurer { display: inline-block; @size1: 0.5; @size2: 0.7; @size3: 0.8; @size4: 0.9; - @size5: 1.0; + @size5: 1; @size6: 1.2; @size7: 1.44; @size8: 1.73; @@ -444,8 +496,8 @@ .generate-size-change(@from, @to) { &.reset-size@{from}.size@{to} { - @sizeFromVariable: ~"size@{from}"; - @sizeToVariable: ~"size@{to}"; + @sizeFromVariable: ~'size@{from}'; + @sizeToVariable: ~'size@{to}'; font-size: (@@sizeToVariable / @@sizeFromVariable) * 1em; } } @@ -466,10 +518,18 @@ } .delimsizing { - &.size1 { font-family: KaTeX_Size1; } - &.size2 { font-family: KaTeX_Size2; } - &.size3 { font-family: KaTeX_Size3; } - &.size4 { font-family: KaTeX_Size4; } + &.size1 { + font-family: KaTeX_Size1; + } + &.size2 { + font-family: KaTeX_Size2; + } + &.size3 { + font-family: KaTeX_Size3; + } + &.size4 { + font-family: KaTeX_Size4; + } &.mult { .delim-size1 > span { @@ -532,7 +592,7 @@ display: inline-block; } - .col-align-c > .vlist { + .col-align-c > .vlist { text-align: center; } @@ -540,17 +600,16 @@ text-align: left; } - .col-align-r > .vlist{ + .col-align-r > .vlist { text-align: right; } } } .ML__smart-fence__close { - opacity: .5; + opacity: 0.5; } - .ML__selection { background: var(--highlight-inactive); box-sizing: border-box; @@ -562,7 +621,14 @@ // display:inline-block; } - +.ML__contains-caret.ML__close, +.ML__contains-caret.ML__open, +.ML__contains-caret > .ML__close, +.ML__contains-caret > .ML__open, +.sqrt.ML__contains-caret > .sqrt-sign, +.sqrt.ML__contains-caret > .vlist > span > .sqrt-line { + color: var(--caret); +} .ML__command { font-family: @monospace; @@ -572,21 +638,18 @@ color: var(--primary); } - - :not(.ML__command) + .ML__command { - margin-left: .25em; + margin-left: 0.25em; } -.ML__command + :not(.ML__command) { - padding-left: .25em; +.ML__command + :not(.ML__command) { + padding-left: 0.25em; } - /* When using smartFence, the anticipated closing fence is displayed with this style */ .ML__smart-fence__close { - opacity: .5; + opacity: 0.5; } /* The element that displays the keys as the user type them */ @@ -596,7 +659,7 @@ with this style */ /*background-color: rgba(97, 97, 200, .95);*/ background: var(--secondary); border-color: var(--secondary-border); - box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23); + box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23); text-align: center; border-radius: 6px; padding: 16px; @@ -613,14 +676,14 @@ with this style */ --keystroke-border: #f7f7f7; } @media (prefers-color-scheme: dark) { - body:not([theme="light"]) .ML__keystroke-caption { + body:not([theme='light']) .ML__keystroke-caption { --keystroke: hsl(var(--hue), 50%, 30%); --on-keystroke: hsl(0, 0%, 98%); --keystroke-border: hsl(var(--hue), 50%, 25%); } } -body[theme="dark"] .ML__keystroke-caption { +body[theme='dark'] .ML__keystroke-caption { --keystroke: hsl(var(--hue), 50%, 30%); --on-keystroke: hsl(0, 0%, 98%); --keystroke-border: hsl(var(--hue), 50%, 25%); @@ -642,7 +705,7 @@ body[theme="dark"] .ML__keystroke-caption { position: absolute; visibility: hidden; content: attr(data-tooltip); - + display: inline-table; top: 110%; @@ -651,12 +714,13 @@ body[theme="dark"] .ML__keystroke-caption { width: max-content; max-width: 200px; padding: 8px 8px; - background: #616161; // Grey 700 + background: #616161; // Grey 700 color: #fff; text-align: center; z-index: 2; - box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2); + box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), + 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2); border-radius: 2px; font-family: @system; @@ -664,7 +728,7 @@ body[theme="dark"] .ML__keystroke-caption { font-size: 12px; /* Phone */ - @media only screen and (max-width : 767px) { + @media only screen and (max-width: 767px) { height: 32px; padding: 4px 16px; font-size: 14px; @@ -673,18 +737,17 @@ body[theme="dark"] .ML__keystroke-caption { opacity: 0; transform: scale(0.5); // animation: .150s tooltipFadeOut cubic-bezier(0.4, 0.0, 1, 1) forwards; - transition: all .150s cubic-bezier(0.4, 0.0, 1, 1); - + transition: all 0.15s cubic-bezier(0.4, 0, 1, 1); } } [data-tooltip]:hover { position: relative; &::after { - visibility: visible; // Visible triggers the animation... - opacity: 1; // ... but we start fully transparent to - // give ourselves a delay before showing - transform: scale(1); + visibility: visible; // Visible triggers the animation... + opacity: 1; // ... but we start fully transparent to + // give ourselves a delay before showing + transform: scale(1); } } @@ -697,7 +760,6 @@ body[theme="dark"] .ML__keystroke-caption { transition-delay: 1s; /* attr(data-delay); Should work. But doesn't. */ } - // @keyframes tooltipFadeIn { // 0% { // opacity: 0; @@ -731,17 +793,15 @@ body[theme="dark"] .ML__keystroke-caption { // } // } - -.can-redo [data-command="\"redo\""] { +.can-redo [data-command='"redo"'] { opacity: 1 !important; } -.can-undo [data-command="\"undo\""] { +.can-undo [data-command='"undo"'] { opacity: 1 !important; } - .ML__keyboard { - --keyboard-background: rgba(209, 213, 217, .95); + --keyboard-background: rgba(209, 213, 217, 0.95); --keyboard-text: #000; --keyboard-text-active: var(--primary); --keyboard-background-border: #ddd; @@ -757,7 +817,6 @@ body[theme="dark"] .ML__keystroke-caption { --keycap-modifier-border: #c5c9d0; --keycap-modifier-border-bottom: #989da6; - --keyboard-alternate-background: #fff; --keyboard-alternate-background-active: #e5e5e5; --keyboard-alternate-text: #000; @@ -770,18 +829,23 @@ body[theme="dark"] .ML__keystroke-caption { padding-top: 5px; - transform: translate(0, 0); + transform: translate(0, 0); opacity: 0; visibility: hidden; // To make the keyboard visible, add the .is-visible class // This will slide in and fade in the keyboard - transition: .28s cubic-bezier(0.0, 0.0, 0.2, 1); // Deceleration curve + transition: 0.28s cubic-bezier(0, 0, 0.2, 1); // Deceleration curve transition-property: transform, opacity; &.is-visible { - transform: translate(0, -267px); + transform: translate(0, -267px); opacity: 1; visibility: visible; - transition-timing-function: cubic-bezier(0.4, 0.0, 1, 1); // Acceleration curve + transition-timing-function: cubic-bezier( + 0.4, + 0, + 1, + 1 + ); // Acceleration curve } backdrop-filter: grayscale(50%); @@ -803,10 +867,12 @@ body[theme="dark"] .ML__keystroke-caption { box-shadow: @shadow2; .tex { - font-family: @math_main, "Cambria Math", "Asana Math", OpenSymbol, Symbola, STIX, Times, serif !important; + font-family: @math_main, 'Cambria Math', 'Asana Math', OpenSymbol, + Symbola, STIX, Times, serif !important; } .tex-math { - font-family: @math_math, "Cambria Math", "Asana Math", OpenSymbol, Symbola, STIX, Times, serif !important; + font-family: @math_math, 'Cambria Math', 'Asana Math', OpenSymbol, + Symbola, STIX, Times, serif !important; } .tt { font-family: @monospace !important; @@ -818,7 +884,8 @@ body[theme="dark"] .ML__keystroke-caption { &.alternate-keys { visibility: hidden; max-width: 286px; - @media only screen and (max-height : 412px) { // 412 is the height of the Google Pixel in landscape mode + @media only screen and (max-height: 412px) { + // 412 is the height of the Google Pixel in landscape mode max-width: 320px; } @@ -826,17 +893,17 @@ body[theme="dark"] .ML__keystroke-caption { text-align: center; border-radius: 6px; position: fixed; - bottom: auto; // Override the value from ML__keyboard - top: 0; // " - box-sizing: content-box; // " - transform: none; // " - z-index: 106; // Above the keyboard (105) - + bottom: auto; // Override the value from ML__keyboard + top: 0; // " + box-sizing: content-box; // " + transform: none; // " + z-index: 106; // Above the keyboard (105) + display: flex; flex-direction: row; justify-content: center; align-content: center; - + box-shadow: @shadow4; transition: none; @@ -851,17 +918,18 @@ body[theme="dark"] .ML__keystroke-caption { display: flex; flex-flow: row wrap-reverse; justify-content: center; - & > li { // Alternate Keys + & > li { + // Alternate Keys display: flex; flex-flow: column; align-items: center; justify-content: center; font-size: 30px; - + height: 70px; width: 70px; - @media only screen and (max-height : 412px) { + @media only screen and (max-height: 412px) { font-size: 24px; height: 50px; width: 50px; @@ -874,7 +942,9 @@ body[theme="dark"] .ML__keystroke-caption { pointer-events: all; color: var(--keyboard-alternate-text); fill: currentColor; - &:hover, &.pressed, &.active { + &:hover, + &.pressed, + &.active { box-shadow: @shadow3; background: var(--keyboard-alternate-background-active); color: var(--keyboard-text-active); @@ -891,8 +961,9 @@ body[theme="dark"] .ML__keystroke-caption { background: var(--keyboard-alternate-background-active); } } - &.box > div, &.box > span { - border: 1px dashed rgba(0, 0, 0, .24); + &.box > div, + &.box > span { + border: 1px dashed rgba(0, 0, 0, 0.24); } // Use to display warning icons, with a SVG icon .warning { @@ -905,29 +976,30 @@ body[theme="dark"] .ML__keystroke-caption { align-items: center; justify-content: center; border-radius: 5px; - &:hover, &.pressed, &.active { + &:hover, + &.pressed, + &.active { background: red; } svg { width: 50px; height: 50px; } - } + } aside { font-size: 12px; line-height: 12px; - opacity: .78; + opacity: 0.78; } } } } - & > div.keyboard-layer { display: none; outline: none; - &.is-visible { - display: flex; + &.is-visible { + display: flex; flex-flow: column; } } @@ -936,23 +1008,23 @@ body[theme="dark"] .ML__keystroke-caption { display: flex; flex-flow: row; justify-content: space-between; - width: 736px; // Desktop + width: 736px; // Desktop /* Tablet */ - @media only screen and (min-width : 768px) and (max-width : 1024px) { + @media only screen and (min-width: 768px) and (max-width: 1024px) { width: 556px; } /* Phone */ - @media only screen and (max-width : 767px) { + @media only screen and (max-width: 767px) { width: 365px; - max-width: 100vw; // iPhone 5 is 320px + max-width: 100vw; // iPhone 5 is 320px } - + /* Icons for undo/redo, etc. */ svg { height: 20px; width: 20px; } - @media only screen and (max-width : 767px) { + @media only screen and (max-width: 767px) { svg { height: 13px; width: 17px; @@ -992,23 +1064,28 @@ body[theme="dark"] .ML__keystroke-caption { box-shadow: none; border-bottom: 2px solid transparent; - &.disabled svg, &.disabled:hover svg, &.disabled.pressed svg { + &.disabled svg, + &.disabled:hover svg, + &.disabled.pressed svg { color: var(--keyboard-text); - opacity: .2; + opacity: 0.2; } /* iPhone 5 */ - @media only screen and (max-width : 414px) { + @media only screen and (max-width: 414px) { font-size: 100%; padding: 0 6px 0 0; } /* Phone */ - @media only screen and (max-width : 767px) { + @media only screen and (max-width: 767px) { padding-left: 4px; padding-right: 4px; font-size: 90%; } - &:hover, &:active, &.pressed, &.active { + &:hover, + &:active, + &.pressed, + &.active { color: var(--keyboard-text-active); } &.selected { @@ -1035,8 +1112,6 @@ body[theme="dark"] .ML__keystroke-caption { margin: 0 0 3px 0; padding: 0; - - & > li { /* Key widths. A standard key is 10 units wide (w10) */ /* The formula for wn = n * w10 / 10 + (n -1) * margin-right */ @@ -1068,8 +1143,12 @@ body[theme="dark"] .ML__keystroke-caption { margin-right: 0; } - &.small {font-size: 16px;} - &.tt {color: var(--keyboard-text-active);} + &.small { + font-size: 16px; + } + &.tt { + color: var(--keyboard-text-active); + } /* For the alignment of the text on some modifiers (e.g. shift) */ &.bottom { @@ -1084,7 +1163,10 @@ body[theme="dark"] .ML__keystroke-caption { padding-right: 4px; } - svg {width: 20px; height: 20px;} + svg { + width: 20px; + height: 20px; + } // Use to display warning icons, with a SVG icon .warning { height: 25px; @@ -1103,7 +1185,7 @@ body[theme="dark"] .ML__keystroke-caption { width: 16px; height: 16px; } - @media only screen and (max-width : 768px) { + @media only screen and (max-width: 768px) { height: 16px; width: 16px; min-height: 16px; @@ -1113,12 +1195,22 @@ body[theme="dark"] .ML__keystroke-caption { height: 14px; } } - } - & > .w0 {width: 0;} - & > .w5 {width: 16px;} - & > .w15 {width: 52px;} - & > .w20 {width: 70px;} - & > .w50 {width: 178px;} + } + & > .w0 { + width: 0; + } + & > .w5 { + width: 16px; + } + & > .w15 { + width: 52px; + } + & > .w20 { + width: 70px; + } + & > .w50 { + width: 178px; + } /* Extra spacing between two adjacent keys */ &.separator { background: transparent; @@ -1127,36 +1219,43 @@ body[theme="dark"] .ML__keystroke-caption { } // Only show if there's extra room (up to four more columns) - @media only screen and (max-width : 560px) { + @media only screen and (max-width: 560px) { &.if-wide { display: none; } } - &.tex-math {font-size: 25px;} + &.tex-math { + font-size: 25px; + } // &.tt {font-size: 30px;} - &:hover, &.pressed { + &:hover, + &.pressed { // box-shadow: inset 0 0 1px 1px #8d8f92; background: var(--keycap-background-active); color: var(--keyboard-text-active); } - &.keycap:active, &.keycap.active, &.action:active, &.action.active { + &.keycap:active, + &.keycap.active, + &.action:active, + &.action.active { transform: translateY(-20px) scale(1.4, 1.4); z-index: 100; color: var(--keyboard-text-active); } - &.modifier:active, &.modifier.active { + &.modifier:active, + &.modifier.active { background: var(--keyboard-text-active); color: var(--keycap-text-active); } - &.action.font-glyph, &.modifier.font-glyph { + &.action.font-glyph, + &.modifier.font-glyph { font-size: 18px; - @media only screen and (max-width : 767px) { + @media only screen and (max-width: 767px) { font-size: 16px; } } - // Waves effect position: relative; overflow: hidden; @@ -1164,8 +1263,9 @@ body[theme="dark"] .ML__keystroke-caption { -webkit-tap-highlight-color: transparent; // z-index: 1; // transition: .14s cubic-bezier(.4, 0, .2, 1); - &.fnbutton, &.bigfnbutton { - @media only screen and (max-width : 767px) { + &.fnbutton, + &.bigfnbutton { + @media only screen and (max-width: 767px) { font-size: 12px; } // width: 60px; @@ -1173,20 +1273,25 @@ body[theme="dark"] .ML__keystroke-caption { } &.bigfnbutton { font-size: 14px; - @media only screen and (max-width : 767px) { + @media only screen and (max-width: 767px) { font-size: 9px; } } - &.modifier, &.action { + &.modifier, + &.action { background-color: var(--keycap-modifier-background); border-color: var(--keycap-modifier-border); border-bottom-color: var(--keycap-modifier-border-bottom); font-size: 65%; font-weight: 100; } - &.modifier.selected, &.action.selected { + &.modifier.selected, + &.action.selected { color: var(--keyboard-text-active); - &:hover, &:active, &.pressed, &.active { + &:hover, + &:active, + &.pressed, + &.active { color: white; } } @@ -1194,12 +1299,12 @@ body[theme="dark"] .ML__keystroke-caption { font-size: 80%; padding-top: 10px; font-weight: 100; - } + } small { color: #555; - @media only screen and (max-width : 767px) { + @media only screen and (max-width: 767px) { font-size: 9px; - } + } } aside { font-family: @system; @@ -1207,86 +1312,118 @@ body[theme="dark"] .ML__keystroke-caption { line-height: 10px; color: #666; /* On small screens, don't display */ - @media only screen and (max-width : 767px) { + @media only screen and (max-width: 767px) { display: none; } } - } - + } } /* iPhone 5 */ - @media only screen and (max-width : 414px) { - & > ul { + @media only screen and (max-width: 414px) { + & > ul { & > li { width: 29px; margin-right: 2px; } - & > .w5 { width: 13.5px; } - & > .w15 { width: 44.5px; } - & > .w20 { width: 60px; } - & > .w50 { width: 153px; } + & > .w5 { + width: 13.5px; + } + & > .w15 { + width: 44.5px; + } + & > .w20 { + width: 60px; + } + & > .w50 { + width: 153px; + } } } /* Pixel, iPhone 6,7,8+ */ - @media only screen and (min-width : 415px) and (max-width : 768px) { - & > ul { + @media only screen and (min-width: 415px) and (max-width: 768px) { + & > ul { & > li { width: 37px; margin-right: 3px; } - & > .w5 { width: 17px; } - & > .w15 { width: 57px; } - & > .w20 { width: 77px; } - & > .w50 { width: 197px; } + & > .w5 { + width: 17px; + } + & > .w15 { + width: 57px; + } + & > .w20 { + width: 77px; + } + & > .w50 { + width: 197px; + } } } /* Tablet size */ - @media only screen and (min-width : 768px) and (max-width : 1024px) { - & > ul { - height: 52px; + @media only screen and (min-width: 768px) and (max-width: 1024px) { + & > ul { + height: 52px; & > li { height: 52px; width: 51px; margin-right: 4px; } - & > .w5 { width: 23.5px; } - & > .w15 { width: 78.5px; } - & > .w20 { width: 106px; } - & > .w50 { width: 271px; } + & > .w5 { + width: 23.5px; + } + & > .w15 { + width: 78.5px; + } + & > .w20 { + width: 106px; + } + & > .w50 { + width: 271px; + } } } /* Desktop size */ - @media only screen and (min-width : 1025px) { - & > ul { - height: 52px; + @media only screen and (min-width: 1025px) { + & > ul { + height: 52px; & > li { height: 52px; width: 66px; margin-right: 6px; } - & > .modifier, & > .action { + & > .modifier, + & > .action { font-size: 80%; } - & > .w5 { width: 30px; } - & > .w15 { width: 102px; } - & > .w20 { width: 138px; } - & > .w50 { width: 354px; } + & > .w5 { + width: 30px; + } + & > .w15 { + width: 102px; + } + & > .w20 { + width: 138px; + } + & > .w50 { + width: 354px; + } } } } } @media (prefers-color-scheme: dark) { - body:not([theme="light"]) .ML__keyboard { + body:not([theme='light']) .ML__keyboard { --hue: 206; - --keyboard-background: hsl(var(--hue),19%,38%); + --keyboard-background: hsl(var(--hue), 19%, 38%); --keyboard-text: #f0f0f0; --keyboard-text-active: hsl(var(--hue), 100%, 60%); - --keyboard-background-border: hsl(0,0%,20%); + --keyboard-background-border: hsl(0, 0%, 20%); --keycap-background: hsl(var(--hue), 25%, 39%); --keycap-background-active: hsl(var(--hue), 35%, 42%); --keycap-background-border: hsl(var(--hue), 25%, 35%); --keycap-background-border-bottom: hsl(206, 35%, 40%); - --keycap-text: hsl(0,0%,81.6%); + --keycap-text: hsl(0, 0%, 81.6%); --keycap-text-active: #000; --keycap-secondary-text: #fff; @@ -1294,39 +1431,38 @@ body[theme="dark"] .ML__keystroke-caption { --keycap-modifier-border: hsl(var(--hue), 35%, 35%); --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); - --keyboard-alternate-background: hsl(var(--hue),19%,38%); - --keyboard-alternate-background-active: hsl(var(--hue),35%,42%); - --keyboard-alternate-text: hsl(0,0%,82%); + --keyboard-alternate-background: hsl(var(--hue), 19%, 38%); + --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-text: hsl(0, 0%, 82%); } } - /* Same as the media query, but with a class */ - body[theme="dark"] .ML__keyboard { - --hue: 206; - --keyboard-background: hsl(var(--hue),19%,38%); - --keyboard-text: #f0f0f0; - --keyboard-text-active: hsl(var(--hue), 100%, 60%); - --keyboard-background-border: hsl(0,0%,20%); - --keycap-background: hsl(var(--hue), 25%, 39%); - --keycap-background-active: hsl(var(--hue), 35%, 42%); - --keycap-background-border: hsl(var(--hue), 25%, 35%); - --keycap-background-border-bottom: hsl(206, 35%, 40%); - --keycap-text: hsl(0,0%,81.6%); - --keycap-text-active: #000; - --keycap-secondary-text: #fff; - - --keycap-modifier-background: hsl(var(--hue), 35%, 40%); - --keycap-modifier-border: hsl(var(--hue), 35%, 35%); - --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); +/* Same as the media query, but with a class */ +body[theme='dark'] .ML__keyboard { + --hue: 206; + --keyboard-background: hsl(var(--hue), 19%, 38%); + --keyboard-text: #f0f0f0; + --keyboard-text-active: hsl(var(--hue), 100%, 60%); + --keyboard-background-border: hsl(0, 0%, 20%); + --keycap-background: hsl(var(--hue), 25%, 39%); + --keycap-background-active: hsl(var(--hue), 35%, 42%); + --keycap-background-border: hsl(var(--hue), 25%, 35%); + --keycap-background-border-bottom: hsl(206, 35%, 40%); + --keycap-text: hsl(0, 0%, 81.6%); + --keycap-text-active: #000; + --keycap-secondary-text: #fff; - --keyboard-alternate-background: hsl(var(--hue),19%,38%); - --keyboard-alternate-background-active: hsl(var(--hue),35%,42%); - --keyboard-alternate-text: hsl(0,0%,82%);; - } + --keycap-modifier-background: hsl(var(--hue), 35%, 40%); + --keycap-modifier-border: hsl(var(--hue), 35%, 35%); + --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-background: hsl(var(--hue), 19%, 38%); + --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-text: hsl(0, 0%, 82%); +} /* The 'material' theme for the virtual keyboard */ -div.ML__keyboard.material { - --keyboard-background: rgba(209, 213, 217, .9); +div.ML__keyboard.material { + --keyboard-background: rgba(209, 213, 217, 0.9); --keyboard-background-border: #ddd; --keycap-background: transparent; --keycap-background-active: #cccfd1; @@ -1343,7 +1479,10 @@ div.ML__keyboard.material { border-radius: 5px; box-shadow: @shadow4; - ul li:hover, ul li:active, ul li.active, ul li.pressed { + ul li:hover, + ul li:active, + ul li.active, + ul li.pressed { border: 1px solid transparent; background: @material-primary; color: white; @@ -1355,7 +1494,10 @@ div.ML__keyboard.material { & > div > div { font-size: 16px; } - div div:hover, div div:active, div.div.active, div.div.pressed { + div div:hover, + div div:active, + div.div.active, + div.div.pressed { color: @material-primary; fill: currentColor; } @@ -1372,7 +1514,7 @@ div.ML__keyboard.material { border: 1px solid transparent; border-radius: 5px; color: var(--keycap-text); - fill: currentColor; + fill: currentColor; &.tt { color: @material-primary; @@ -1386,7 +1528,10 @@ div.ML__keyboard.material { height: 20px; background: #e0e0e0; - &:hover, &:active, &.active, &.pressed { + &:hover, + &:active, + &.active, + &.pressed { background: #d0d0d0; box-shadow: none; transform: none; @@ -1397,13 +1542,13 @@ div.ML__keyboard.material { background: var(--keycap-background-active); box-shadow: none; } - &:not([data-key=' ']).pressed, + &:not([data-key=' ']).pressed, &:not([data-key=' ']).active, - &:not([data-key=' ']):active { + &:not([data-key=' ']):active { background: var(--keyboard-alternate-background); color: var(--keyboard-alternate-text); box-shadow: @shadow3; - @media only screen and (max-width : 767px) { + @media only screen and (max-width: 767px) { box-shadow: @shadow3; font-size: 10px; vertical-align: top; @@ -1417,19 +1562,20 @@ div.ML__keyboard.material { padding: 2px 0 0 0; z-index: 100; } - @media only screen and (max-width : 414px) { + @media only screen and (max-width: 414px) { width: 16.5px; } } - &:last-child:active, + &:last-child:active, &:last-child.active { - @media only screen and (max-width : 767px) { + @media only screen and (max-width: 767px) { margin-right: 0; margin-left: 14px; } } } - div div.rows ul li.modifier, div div.rows ul li.action { + div div.rows ul li.modifier, + div div.rows ul li.action { background: transparent; border: 0; color: #869096; @@ -1442,47 +1588,53 @@ div.ML__keyboard.material { border-radius: 0; border-bottom: 2px solid @material-primary; } - &:hover, &:active, &.active, &.pressed { + &:hover, + &:active, + &.active, + &.pressed { border: 0; color: var(--keycap-text); background: var(--keycap-background-active); box-shadow: none; } } - div div.rows ul li.fnbutton, div div.rows ul li.bigfnbutton { + div div.rows ul li.fnbutton, + div div.rows ul li.bigfnbutton { background: transparent; border: 0; // transition: .28s cubic-bezier(.4, 0, .2, 1); - &.selected, &.selected { + &.selected, + &.selected { color: @material-primary; fill: currentColor; border-radius: 0; border-bottom: 2px solid @material-primary; } - &:hover, &:active, &.pressed, &.active { + &:hover, + &:active, + &.pressed, + &.active { border: 0; color: @material-primary; fill: currentColor; background: var(--keycap-background-active); box-shadow: none; } - } -}; - +} @media (prefers-color-scheme: dark) { - body:not([theme="light"]) div.ML__keyboard.material { + body:not([theme='light']) div.ML__keyboard.material { --hue: 198; - --keyboard-background: hsl(var(--hue),19%,18%); + --keyboard-background: hsl(var(--hue), 19%, 18%); --keyboard-text: #d4d6d7; --keyboard-text-active: @material-primary; - --keyboard-background-border: hsl(0,0%,20%); + --keyboard-background-border: hsl(0, 0%, 20%); --keycap-background: hsl(var(--hue), 25%, 39%); --keycap-background-active: @material-primary; --keycap-background-border: transparent; --keycap-background-border-bottom: transparent; - --keycap-text: hsl(0,0%,81.6%); + --keycap-text: hsl(0, 0%, 81.6%); --keycap-text-active: #d4d6d7; --keycap-secondary-text: @material-primary; @@ -1490,23 +1642,22 @@ div.ML__keyboard.material { --keycap-modifier-border: hsl(var(--hue), 35%, 35%); --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); - - --keyboard-alternate-background: hsl(var(--hue),8%,2%); - --keyboard-alternate-background-active: hsl(var(--hue),35%,42%); - --keyboard-alternate-text: hsl(0,0%,82%); + --keyboard-alternate-background: hsl(var(--hue), 8%, 2%); + --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-text: hsl(0, 0%, 82%); } } -body[theme="dark"] div.ML__keyboard.material { +body[theme='dark'] div.ML__keyboard.material { --hue: 198; - --keyboard-background: hsl(var(--hue),19%,18%); + --keyboard-background: hsl(var(--hue), 19%, 18%); --keyboard-text: #d4d6d7; --keyboard-text-active: @material-primary; - --keyboard-background-border: hsl(0,0%,20%); + --keyboard-background-border: hsl(0, 0%, 20%); --keycap-background: hsl(var(--hue), 25%, 39%); --keycap-background-active: @material-primary; --keycap-background-border: transparent; --keycap-background-border-bottom: transparent; - --keycap-text: hsl(0,0%,81.6%); + --keycap-text: hsl(0, 0%, 81.6%); --keycap-text-active: #d4d6d7; --keycap-secondary-text: @material-primary; @@ -1514,34 +1665,34 @@ body[theme="dark"] div.ML__keyboard.material { --keycap-modifier-border: hsl(var(--hue), 35%, 35%); --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); - - --keyboard-alternate-background: hsl(var(--hue),8%,2%); - --keyboard-alternate-background-active: hsl(var(--hue),35%,42%); - --keyboard-alternate-text: hsl(0,0%,82%); + --keyboard-alternate-background: hsl(var(--hue), 8%, 2%); + --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-text: hsl(0, 0%, 82%); } - .ML__error { // Wavy pattern - background-image: radial-gradient(ellipse at center, - hsl(341,100%,40%),rgba(0,0,0,0) 70%); + background-image: radial-gradient( + ellipse at center, + hsl(341, 100%, 40%), + rgba(0, 0, 0, 0) 70% + ); background-repeat: repeat-x; background-size: 3px 3px; - background-position:0 98%; + background-position: 0 98%; } .ML__suggestion { - opacity: .50; + opacity: 0.5; } .ML__placeholder { - opacity: .7; - padding-left: .5ex; - padding-right: .5ex; + opacity: 0.7; + padding-left: 0.5ex; + padding-right: 0.5ex; } - .ML__keystroke-caption > span { min-width: 14px; /*height: 8px;*/ @@ -1564,10 +1715,8 @@ body[theme="dark"] div.ML__keyboard.material { // box-shadow: @shadow1; } - - .ML__virtual-keyboard-toggle.pressed { - background: hsla(0, 0%, 70%, .5); + background: hsla(0, 0%, 70%, 0.5); } .ML__virtual-keyboard-toggle:focus { @@ -1576,22 +1725,24 @@ body[theme="dark"] div.ML__keyboard.material { border: 2px solid var(--primary); } - -.ML__virtual-keyboard-toggle.active:hover, +.ML__virtual-keyboard-toggle.active:hover, .ML__virtual-keyboard-toggle.active { - background: hsla(0, 0%, 70%, .5); + background: hsla(0, 0%, 70%, 0.5); color: #000; fill: currentColor; } - div.ML__popover.is-visible { visibility: visible; - animation: ML__fade-in cubic-bezier(0.0, 0.0, 0.2, 1) .15s; + animation: ML__fade-in cubic-bezier(0, 0, 0.2, 1) 0.15s; } @keyframes ML__fade-in { - from {opacity: 0;} - to {opacity:1 ;} + from { + opacity: 0; + } + to { + opacity: 1; + } } /* The wrapper class for the entire content of the popover panel */ @@ -1607,25 +1758,23 @@ div.ML__popover.is-visible { margin-left: 8px; margin-right: 8px; a { - color: #5Ea6Fd; - padding-top: .3em; - margin-top: .4em; + color: #5ea6fd; + padding-top: 0.3em; + margin-top: 0.4em; display: block; &:hover { - color: #5Ea6Fd; + color: #5ea6fd; text-decoration: underline; } } /* Since the content can be clicked on, provide feedback on hover */ - &:hover, + &:hover, &.pressed, &.active { - background: rgba(255, 255, 255, .1); + background: rgba(255, 255, 255, 0.1); } } - - /* The command inside a popover (inside a ML__popover-content) */ .ML__popover__command { font-size: 1.6rem; @@ -1633,7 +1782,7 @@ div.ML__popover.is-visible { .ML__popover__prev-shortcut { height: 31px; - opacity: .1; + opacity: 0.1; cursor: pointer; margin-left: 8px; @@ -1642,9 +1791,9 @@ div.ML__popover.is-visible { padding-bottom: 2px; } -.ML__popover__prev-shortcut:hover, -.ML__popover__next-shortcut:hover{ - opacity: .3; +.ML__popover__prev-shortcut:hover, +.ML__popover__next-shortcut:hover { + opacity: 0.3; } .ML__popover__prev-shortcut.pressed, @@ -1652,12 +1801,12 @@ div.ML__popover.is-visible { opacity: 1; } -.ML__popover__prev-shortcut.active, +.ML__popover__prev-shortcut.active, .ML__popover__next-shortcut.active { opacity: 1; } -.ML__popover__prev-shortcut > span, +.ML__popover__prev-shortcut > span, .ML__popover__next-shortcut > span { padding: 5px; border-radius: 50%; @@ -1676,15 +1825,14 @@ div.ML__popover.is-visible { display: block; } - -.ML__popover__prev-shortcut:hover > span, +.ML__popover__prev-shortcut:hover > span, .ML__popover__next-shortcut:hover > span { - background: rgba(255, 255, 255, .1); + background: rgba(255, 255, 255, 0.1); } .ML__popover__next-shortcut { height: 34px; - opacity: .1; + opacity: 0.1; cursor: pointer; margin-left: 8px; @@ -1696,30 +1844,30 @@ div.ML__popover.is-visible { /* The keyboard shortcuts for a symbol as displayed in the popover */ .ML__popover__shortcut { font-family: @system; - font-size: .8em; - opacity: .7; + font-size: 0.8em; + opacity: 0.7; - margin-top: .25em; - padding-top: .25em; + margin-top: 0.25em; + padding-top: 0.25em; } /* The field in a popover that provides some info about the symbol */ .ML__popover__note { font-family: @system; - font-size: .8rem; - opacity: .7; + font-size: 0.8rem; + opacity: 0.7; line-height: 1em; - padding-left: .5em; - padding-right: .5em; - padding-top: .25em; + padding-left: 0.5em; + padding-right: 0.5em; + padding-top: 0.25em; } /* Style for the character that joins the modifiers of a keyboard shortcut (usually a "+" sign)*/ .ML__shortcut-join { - opacity: .5; + opacity: 0.5; } /* Styling for an element which is overlaid diff --git a/src/core/mathAtom.js b/src/core/mathAtom.js index 95053a6df..96f438ffc 100644 --- a/src/core/mathAtom.js +++ b/src/core/mathAtom.js @@ -802,7 +802,8 @@ class MathAtom { this.leftDelim, innerHeight, innerDepth, - localContext + localContext, + 'ML__open' ) ) ); @@ -867,7 +868,7 @@ class MathAtom { innerHeight, innerDepth, localContext, - classes + (classes || '') + ' ML__close' ) ) ); @@ -1535,6 +1536,20 @@ class MathAtom { result.caret = this.caret; } } + if (this.containsCaret) { + if (Array.isArray(result)) { + // For a /mleft.../mright, tag the first and last atom in the + // list with the "ML__contains-caret" style (it's the open and + // closing fence, respectively) + result[0].classes = + (result[0].classes || '') + ' ML__contains-caret'; + result[result.length - 1].classes = + (result[result.length - 1].classes || '') + + ' ML__contains-caret'; + } else { + result.classes = (result.classes || '') + ' ML__contains-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 diff --git a/src/editor/editor-mathfield.js b/src/editor/editor-mathfield.js index f316459af..6a81ea8ec 100644 --- a/src/editor/editor-mathfield.js +++ b/src/editor/editor-mathfield.js @@ -2168,6 +2168,7 @@ class MathField { this.mathlist.forEach(a => { a.caret = ''; a.isSelected = false; + a.containsCaret = false; }); const hasFocus = this.$hasFocus(); if (this.mathlist.isCollapsed()) { @@ -2177,6 +2178,20 @@ class MathField { a.isSelected = true; }); } + + if (hasFocus) { + let ancestor = this.mathlist.ancestor(1); + let i = 1; + let done = false; + while (ancestor && !done) { + if (ancestor.type === 'surd' || ancestor.type === 'leftright') { + ancestor.containsCaret = true; + done = true; + } + i += 1; + ancestor = this.mathlist.ancestor(i); + } + } // // 4. Create spans corresponding to the updated mathlist // From 4ef57e309f52dfc0436e6ea0d44bb7f474e7dc20 Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Wed, 5 Feb 2020 15:11:16 -0800 Subject: [PATCH 10/28] Need for proper rendering --- examples/basic/index.esm.html | 1 + 1 file changed, 1 insertion(+) diff --git a/examples/basic/index.esm.html b/examples/basic/index.esm.html index f9caf9b0d..753b66c31 100644 --- a/examples/basic/index.esm.html +++ b/examples/basic/index.esm.html @@ -1,3 +1,4 @@ + From c12631b2533998cfc9b068195b00435a7c810bf7 Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Wed, 5 Feb 2020 17:03:07 -0800 Subject: [PATCH 11/28] Feat: read-only mode (#339) --- dist/mathlive.core.css | 26 +- dist/mathlive.css | 2085 +++++++++++++++++++- dist/mathlive.d.ts | 2 + dist/mathlive.js | 610 +++--- dist/mathlive.mjs | 2 +- dist/src/core/mathAtom.js | 19 +- dist/src/editor/editor-editableMathlist.js | 2 +- dist/src/editor/editor-mathfield.js | 45 +- dist/src/editor/editor-virtualKeyboard.js | 58 +- docs/global.html | 25 + docs/tutorial-CONFIG.html | 3 + src/editor/editor-mathfield.js | 32 +- tutorials/CONFIG.md | 6 + 13 files changed, 2562 insertions(+), 353 deletions(-) diff --git a/dist/mathlive.core.css b/dist/mathlive.core.css index 99667cad6..23c4ba849 100644 --- a/dist/mathlive.core.css +++ b/dist/mathlive.core.css @@ -59,8 +59,8 @@ margin-right: -1ex; position: relative; color: var(--caret); - -webkit-animation: ML__caret-command-blink 1.05s step-end infinite forwards; - animation: ML__caret-command-blink 1.05s step-end infinite forwards; + -webkit-animation: ML__caret-blink 1.05s step-end infinite forwards; + animation: ML__caret-blink 1.05s step-end infinite forwards; } .ML__text { line-height: 1; @@ -69,7 +69,7 @@ .ML__focused .ML__text { background: hsla(var(--hue), 40%, 50%, 0.1); } -@-webkit-keyframes ML__caret-command-blink { +@-webkit-keyframes ML__caret-blink { 0%, to { opacity: 1; @@ -78,7 +78,7 @@ opacity: 0; } } -@keyframes ML__caret-command-blink { +@keyframes ML__caret-blink { 0%, to { opacity: 1; @@ -87,24 +87,6 @@ opacity: 0; } } -@-webkit-keyframes ML__caret-blink { - 0%, - to { - border-color: var(--caret); - } - 50% { - border-color: transparent; - } -} -@keyframes ML__caret-blink { - 0%, - to { - border-color: var(--caret); - } - 50% { - border-color: transparent; - } -} .ML__textarea__textarea { transform: scale(0); resize: none; diff --git a/dist/mathlive.css b/dist/mathlive.css index 41a8f1a11..4cd382404 100644 --- a/dist/mathlive.css +++ b/dist/mathlive.css @@ -1 +1,2084 @@ -@font-face{font-family:KaTeX_AMS;src:url(fonts/KaTeX_AMS-Regular.woff2) format("woff2"),url(fonts/KaTeX_AMS-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Caligraphic;src:url(fonts/KaTeX_Caligraphic-Bold.woff2) format("woff2"),url(fonts/KaTeX_Caligraphic-Bold.woff) 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+ border-bottom-style: solid; + border-bottom-width: 0.04em; + content: ''; + display: block; +} +.ML__mathlive .overline .overline-line:after, +.ML__mathlive .underline .underline-line:after { + border-bottom-style: solid; + border-bottom-width: 0.04em; + min-height: thin; + content: ''; + display: block; + margin-top: -1px; +} +.ML__mathlive .sqrt { + display: inline-block; +} +.ML__mathlive .sqrt > .sqrt-sign { + font-family: KaTeX_Main; + position: relative; +} +.ML__mathlive .sqrt .sqrt-line { + height: 0.04em; + width: 100%; +} +.ML__mathlive .sqrt .sqrt-line:before { + content: ''; + display: block; + margin-top: -0.04em; + border-bottom-style: solid; + border-bottom-width: 0.04em; + min-height: 0.5px; +} +.ML__mathlive .sqrt .sqrt-line:after { + border-bottom-width: 1px; + content: ' '; + display: block; + margin-top: -0.1em; +} +.ML__mathlive .sqrt > .root { + margin-left: 0.27777778em; + margin-right: -0.55555556em; +} +.ML__mathlive .fontsize-ensurer, +.ML__mathlive .sizing { + display: inline-block; +} +.ML__mathlive .fontsize-ensurer.reset-size1.size1, +.ML__mathlive .sizing.reset-size1.size1 { + font-size: 1em; +} +.ML__mathlive .fontsize-ensurer.reset-size1.size2, +.ML__mathlive .sizing.reset-size1.size2 { + font-size: 1.4em; +} +.ML__mathlive .fontsize-ensurer.reset-size1.size3, +.ML__mathlive .sizing.reset-size1.size3 { + font-size: 1.6em; +} +.ML__mathlive .fontsize-ensurer.reset-size1.size4, +.ML__mathlive .sizing.reset-size1.size4 { + font-size: 1.8em; +} +.ML__mathlive .fontsize-ensurer.reset-size1.size5, +.ML__mathlive .sizing.reset-size1.size5 { + font-size: 2em; +} +.ML__mathlive .fontsize-ensurer.reset-size1.size6, +.ML__mathlive .sizing.reset-size1.size6 { + font-size: 2.4em; +} +.ML__mathlive .fontsize-ensurer.reset-size1.size7, +.ML__mathlive .sizing.reset-size1.size7 { + font-size: 2.88em; +} +.ML__mathlive .fontsize-ensurer.reset-size1.size8, +.ML__mathlive .sizing.reset-size1.size8 { + font-size: 3.46em; +} +.ML__mathlive 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{ + font-size: 1.2em; +} +.ML__mathlive .fontsize-ensurer.reset-size6.size8, +.ML__mathlive .sizing.reset-size6.size8 { + font-size: 1.44166667em; +} +.ML__mathlive .fontsize-ensurer.reset-size6.size9, +.ML__mathlive .sizing.reset-size6.size9 { + font-size: 1.725em; +} +.ML__mathlive .fontsize-ensurer.reset-size6.size10, +.ML__mathlive .sizing.reset-size6.size10 { + font-size: 2.075em; +} +.ML__mathlive .fontsize-ensurer.reset-size7.size1, +.ML__mathlive .sizing.reset-size7.size1 { + font-size: 0.34722222em; +} +.ML__mathlive .fontsize-ensurer.reset-size7.size2, +.ML__mathlive .sizing.reset-size7.size2 { + font-size: 0.48611111em; +} +.ML__mathlive .fontsize-ensurer.reset-size7.size3, +.ML__mathlive .sizing.reset-size7.size3 { + font-size: 0.55555556em; +} +.ML__mathlive .fontsize-ensurer.reset-size7.size4, +.ML__mathlive .sizing.reset-size7.size4 { + font-size: 0.625em; +} +.ML__mathlive .fontsize-ensurer.reset-size7.size5, +.ML__mathlive .sizing.reset-size7.size5 { + font-size: 0.69444444em; +} +.ML__mathlive .fontsize-ensurer.reset-size7.size6, +.ML__mathlive .sizing.reset-size7.size6 { + font-size: 0.83333333em; +} +.ML__mathlive .fontsize-ensurer.reset-size7.size7, +.ML__mathlive .sizing.reset-size7.size7 { + font-size: 1em; +} +.ML__mathlive .fontsize-ensurer.reset-size7.size8, +.ML__mathlive .sizing.reset-size7.size8 { + font-size: 1.20138889em; +} +.ML__mathlive .fontsize-ensurer.reset-size7.size9, +.ML__mathlive .sizing.reset-size7.size9 { + font-size: 1.4375em; +} +.ML__mathlive .fontsize-ensurer.reset-size7.size10, +.ML__mathlive .sizing.reset-size7.size10 { + font-size: 1.72916667em; +} +.ML__mathlive .fontsize-ensurer.reset-size8.size1, +.ML__mathlive .sizing.reset-size8.size1 { + font-size: 0.28901734em; +} +.ML__mathlive .fontsize-ensurer.reset-size8.size2, +.ML__mathlive .sizing.reset-size8.size2 { + font-size: 0.40462428em; +} +.ML__mathlive .fontsize-ensurer.reset-size8.size3, +.ML__mathlive .sizing.reset-size8.size3 { + font-size: 0.46242775em; +} +.ML__mathlive .fontsize-ensurer.reset-size8.size4, +.ML__mathlive .sizing.reset-size8.size4 { + font-size: 0.52023121em; +} +.ML__mathlive .fontsize-ensurer.reset-size8.size5, +.ML__mathlive .sizing.reset-size8.size5 { + font-size: 0.57803468em; +} +.ML__mathlive .fontsize-ensurer.reset-size8.size6, +.ML__mathlive .sizing.reset-size8.size6 { + font-size: 0.69364162em; +} +.ML__mathlive .fontsize-ensurer.reset-size8.size7, +.ML__mathlive .sizing.reset-size8.size7 { + font-size: 0.83236994em; +} +.ML__mathlive .fontsize-ensurer.reset-size8.size8, +.ML__mathlive .sizing.reset-size8.size8 { + font-size: 1em; +} +.ML__mathlive .fontsize-ensurer.reset-size8.size9, +.ML__mathlive .sizing.reset-size8.size9 { + font-size: 1.19653179em; +} +.ML__mathlive .fontsize-ensurer.reset-size8.size10, +.ML__mathlive .sizing.reset-size8.size10 { + font-size: 1.43930636em; +} +.ML__mathlive .fontsize-ensurer.reset-size9.size1, +.ML__mathlive .sizing.reset-size9.size1 { + font-size: 0.24154589em; +} +.ML__mathlive .fontsize-ensurer.reset-size9.size2, +.ML__mathlive .sizing.reset-size9.size2 { + font-size: 0.33816425em; +} +.ML__mathlive .fontsize-ensurer.reset-size9.size3, +.ML__mathlive .sizing.reset-size9.size3 { + font-size: 0.38647343em; +} +.ML__mathlive .fontsize-ensurer.reset-size9.size4, +.ML__mathlive .sizing.reset-size9.size4 { + font-size: 0.43478261em; +} +.ML__mathlive .fontsize-ensurer.reset-size9.size5, +.ML__mathlive .sizing.reset-size9.size5 { + font-size: 0.48309179em; +} +.ML__mathlive .fontsize-ensurer.reset-size9.size6, +.ML__mathlive .sizing.reset-size9.size6 { + font-size: 0.57971014em; +} +.ML__mathlive .fontsize-ensurer.reset-size9.size7, +.ML__mathlive .sizing.reset-size9.size7 { + font-size: 0.69565217em; +} +.ML__mathlive .fontsize-ensurer.reset-size9.size8, +.ML__mathlive .sizing.reset-size9.size8 { + font-size: 0.83574879em; +} +.ML__mathlive .fontsize-ensurer.reset-size9.size9, +.ML__mathlive .sizing.reset-size9.size9 { + font-size: 1em; +} +.ML__mathlive .fontsize-ensurer.reset-size9.size10, +.ML__mathlive .sizing.reset-size9.size10 { + font-size: 1.20289855em; +} +.ML__mathlive .fontsize-ensurer.reset-size10.size1, +.ML__mathlive .sizing.reset-size10.size1 { + font-size: 0.20080321em; +} +.ML__mathlive .fontsize-ensurer.reset-size10.size2, +.ML__mathlive .sizing.reset-size10.size2 { + font-size: 0.2811245em; +} +.ML__mathlive .fontsize-ensurer.reset-size10.size3, +.ML__mathlive .sizing.reset-size10.size3 { + font-size: 0.32128514em; +} +.ML__mathlive .fontsize-ensurer.reset-size10.size4, +.ML__mathlive .sizing.reset-size10.size4 { + font-size: 0.36144578em; +} +.ML__mathlive .fontsize-ensurer.reset-size10.size5, +.ML__mathlive .sizing.reset-size10.size5 { + font-size: 0.40160643em; +} +.ML__mathlive .fontsize-ensurer.reset-size10.size6, +.ML__mathlive .sizing.reset-size10.size6 { + font-size: 0.48192771em; +} +.ML__mathlive .fontsize-ensurer.reset-size10.size7, +.ML__mathlive .sizing.reset-size10.size7 { + font-size: 0.57831325em; +} +.ML__mathlive .fontsize-ensurer.reset-size10.size8, +.ML__mathlive .sizing.reset-size10.size8 { + font-size: 0.69477912em; +} +.ML__mathlive .fontsize-ensurer.reset-size10.size9, +.ML__mathlive .sizing.reset-size10.size9 { + font-size: 0.8313253em; +} +.ML__mathlive .fontsize-ensurer.reset-size10.size10, +.ML__mathlive .sizing.reset-size10.size10 { + font-size: 1em; +} +.ML__mathlive .delimsizing.size1 { + font-family: KaTeX_Size1; +} +.ML__mathlive .delimsizing.size2 { + font-family: KaTeX_Size2; +} +.ML__mathlive .delimsizing.size3 { + font-family: KaTeX_Size3; +} +.ML__mathlive .delimsizing.size4 { + font-family: KaTeX_Size4; +} +.ML__mathlive .delimsizing.mult .delim-size1 > span { + font-family: KaTeX_Size1; + vertical-align: top; +} +.ML__mathlive .delimsizing.mult .delim-size4 > span { + font-family: KaTeX_Size4; + vertical-align: top; +} +.ML__mathlive .nulldelimiter { + width: 0.12em; +} +.ML__mathlive .op-symbol { + position: relative; +} +.ML__mathlive .op-symbol.small-op { + font-family: KaTeX_Size1; +} +.ML__mathlive .op-symbol.large-op { + font-family: KaTeX_Size2; +} +.ML__mathlive .op-limits .vlist > span { + text-align: center; +} +.ML__mathlive .accent > .vlist > span { + text-align: center; +} +.ML__mathlive .accent .accent-body > span { + width: 0; +} +.ML__mathlive .accent .accent-body.accent-vec > span { + position: relative; + left: 0.326em; +} +.ML__mathlive .mtable .vertical-separator { + display: inline-block; + margin: 0 -0.025em; + border-right: 0.05em solid #000; +} +.ML__mathlive .mtable .arraycolsep { + display: inline-block; +} +.ML__mathlive .mtable .col-align-c > .vlist { + text-align: center; +} +.ML__mathlive .mtable .col-align-l > .vlist { + text-align: left; +} +.ML__mathlive .mtable .col-align-r > .vlist { + text-align: right; +} +.ML__selection { + background: var(--highlight-inactive); + box-sizing: border-box; +} +.ML__focused .ML__selection { + background: var(--highlight) !important; + color: var(--on-highlight); +} +.ML__contains-caret.ML__close, +.ML__contains-caret.ML__open, +.ML__contains-caret > .ML__close, +.ML__contains-caret > .ML__open, +.sqrt.ML__contains-caret > .sqrt-sign, +.sqrt.ML__contains-caret > .vlist > span > .sqrt-line { + color: var(--caret); +} +.ML__command { + font-family: Source Code Pro, Consolas, Roboto Mono, Menlo, + Bitstream Vera Sans Mono, DejaVu Sans Mono, Monaco, Courier, monospace; + letter-spacing: -1px; + font-weight: 400; + color: var(--primary); +} +:not(.ML__command) + .ML__command { + margin-left: 0.25em; +} +.ML__command + :not(.ML__command) { + padding-left: 0.25em; +} +.ML__smart-fence__close { + opacity: 0.5; +} +.ML__keystroke-caption { + visibility: hidden; + background: var(--secondary); + border-color: var(--secondary-border); + box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23); + text-align: center; + border-radius: 6px; + padding: 16px; + position: absolute; + z-index: 1; + display: flex; + flex-direction: row; + justify-content: center; + --keystroke: #fff; + --on-keystroke: #555; + --keystroke-border: #f7f7f7; +} +@media (prefers-color-scheme: dark) { + body:not([theme='light']) .ML__keystroke-caption { + --keystroke: hsl(var(--hue), 50%, 30%); + --on-keystroke: #fafafa; + --keystroke-border: hsl(var(--hue), 50%, 25%); + } +} +body[theme='dark'] .ML__keystroke-caption { + --keystroke: hsl(var(--hue), 50%, 30%); + --on-keystroke: #fafafa; + --keystroke-border: hsl(var(--hue), 50%, 25%); +} +[data-tooltip] { + position: relative; +} +[data-tooltip][data-placement='top']:after { + top: inherit; + bottom: 100%; +} +[data-tooltip]:after { + position: absolute; + visibility: hidden; + content: attr(data-tooltip); + display: inline-table; + top: 110%; + width: -webkit-max-content; + width: -moz-max-content; + width: max-content; + max-width: 200px; + padding: 8px; + background: #616161; + color: #fff; + text-align: center; + z-index: 2; + box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), + 0 3px 1px -2px rgba(0, 0, 0, 0.2); + border-radius: 2px; + font-family: system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, + Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, + sans-serif; + font-weight: 400; + font-size: 12px; + opacity: 0; + transform: scale(0.5); + transition: all 0.15s cubic-bezier(0.4, 0, 1, 1); +} +@media only screen and (max-width: 767px) { + [data-tooltip]:after { + height: 32px; + padding: 4px 16px; + font-size: 14px; + } +} +[data-tooltip]:hover { + position: relative; +} +[data-tooltip]:hover:after { + visibility: visible; + opacity: 1; + transform: scale(1); +} +[data-tooltip][data-delay]:after { + transition-delay: 0s; +} +[data-tooltip][data-delay]:hover:after { + transition-delay: 1s; +} +.can-redo [data-command='redo'] { + opacity: 1 !important; +} +.can-undo [data-command='undo'] { + opacity: 1 !important; +} +.ML__keyboard { + --keyboard-background: rgba(209, 213, 217, 0.95); + --keyboard-text: #000; + --keyboard-text-active: var(--primary); + --keyboard-background-border: #ddd; + --keycap-background: #fff; + --keycap-background-active: #e5e5e5; + --keycap-background-border: #e5e6e9; + --keycap-background-border-bottom: #8d8f92; + --keycap-text: #000; + --keycap-text-active: #fff; + --keycap-secondary-text: #000; + --keycap-modifier-background: #b9bdc7; + --keycap-modifier-border: #c5c9d0; + --keycap-modifier-border-bottom: #989da6; + --keyboard-alternate-background: #fff; + --keyboard-alternate-background-active: #e5e5e5; + --keyboard-alternate-text: #000; + position: fixed; + left: 0; + bottom: -267px; + width: 100vw; + z-index: 105; + padding-top: 5px; + transform: translate(0); + opacity: 0; + visibility: hidden; + transition: 0.28s cubic-bezier(0, 0, 0.2, 1); + transition-property: transform, opacity; + -webkit-backdrop-filter: grayscale(50%); + backdrop-filter: grayscale(50%); + background-color: var(--keyboard-background); + border: 1px solid var(--keyboard-background-border); + font-family: system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, + Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, + sans-serif; + font-size: 16px; + font-weight: 400; + margin: 0; + text-shadow: none; + box-sizing: border-box; + touch-action: none; + -webkit-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; + cursor: pointer; + box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23); +} +.ML__keyboard.is-visible { + transform: translateY(-267px); + opacity: 1; + visibility: visible; + transition-timing-function: cubic-bezier(0.4, 0, 1, 1); +} +.ML__keyboard .tex { + font-family: KaTeX_Main, Cambria Math, Asana Math, OpenSymbol, Symbola, STIX, + Times, serif !important; +} +.ML__keyboard .tex-math { + font-family: KaTeX_Math, Cambria Math, Asana Math, OpenSymbol, Symbola, STIX, + Times, serif !important; +} +.ML__keyboard .tt { + font-family: Source Code Pro, Consolas, Roboto Mono, Menlo, + Bitstream Vera Sans Mono, DejaVu Sans Mono, Monaco, Courier, monospace !important; + font-size: 30px; + font-weight: 400; +} +.ML__keyboard.alternate-keys { + visibility: hidden; + max-width: 286px; + background-color: var(--keyboard-alternate-background); + text-align: center; + border-radius: 6px; + position: fixed; + bottom: auto; + top: 0; + box-sizing: content-box; + transform: none; + z-index: 106; + display: flex; + flex-direction: row; + justify-content: center; + align-content: center; + box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22); + transition: none; +} +@media only screen and (max-height: 412px) { + .ML__keyboard.alternate-keys { + max-width: 320px; + } +} +.ML__keyboard.alternate-keys.is-visible { + visibility: visible; +} +.ML__keyboard.alternate-keys ul { + list-style: none; + margin: 3px; + padding: 0; + display: flex; + flex-flow: row wrap-reverse; + justify-content: center; +} +.ML__keyboard.alternate-keys ul > li { + display: flex; + flex-flow: column; + align-items: center; + justify-content: center; + font-size: 30px; + height: 70px; + width: 70px; + box-sizing: border-box; + margin: 0; + background: transparent; + border: 1px solid transparent; + border-radius: 5px; + pointer-events: all; + color: var(--keyboard-alternate-text); + fill: currentColor; +} +@media only screen and (max-height: 412px) { + .ML__keyboard.alternate-keys ul > li { + font-size: 24px; + height: 50px; + width: 50px; + } +} +.ML__keyboard.alternate-keys ul > li.active, +.ML__keyboard.alternate-keys ul > li.pressed, +.ML__keyboard.alternate-keys ul > li:hover { + box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); + background: var(--keyboard-alternate-background-active); + color: var(--keyboard-text-active); +} +.ML__keyboard.alternate-keys ul > li.small { + font-size: 18px; +} +.ML__keyboard.alternate-keys ul > li.small-button { + width: 42px; + height: 42px; + margin: 2px; + background: #fbfbfb; +} +.ML__keyboard.alternate-keys ul > li.small-button:hover { + background: var(--keyboard-alternate-background-active); +} +.ML__keyboard.alternate-keys ul > li.box > div, +.ML__keyboard.alternate-keys ul > li.box > span { + border: 1px dashed rgba(0, 0, 0, 0.24); +} +.ML__keyboard.alternate-keys ul > li .warning { + min-height: 60px; + min-width: 60px; + background: #cd0030; + color: #fff; + padding: 5px; + display: flex; + align-items: center; + justify-content: center; + border-radius: 5px; +} +.ML__keyboard.alternate-keys ul > li .warning.active, +.ML__keyboard.alternate-keys ul > li .warning.pressed, +.ML__keyboard.alternate-keys ul > li .warning:hover { + background: red; +} +.ML__keyboard.alternate-keys ul > li .warning svg { + width: 50px; + height: 50px; +} +.ML__keyboard.alternate-keys ul > li aside { + font-size: 12px; + line-height: 12px; + opacity: 0.78; +} +.ML__keyboard > div.keyboard-layer { + display: none; + outline: none; +} +.ML__keyboard > div.keyboard-layer.is-visible { + display: flex; + flex-flow: column; +} +.ML__keyboard > div > div.keyboard-toolbar { + align-self: center; + display: flex; + flex-flow: row; + justify-content: space-between; + width: 736px; +} +@media only screen and (min-width: 768px) and (max-width: 1024px) { + .ML__keyboard > div > div.keyboard-toolbar { + width: 556px; + } +} +@media only screen and (max-width: 767px) { + .ML__keyboard > div > div.keyboard-toolbar { + width: 365px; + max-width: 100vw; + } +} +.ML__keyboard > div > div.keyboard-toolbar svg { + height: 20px; + width: 20px; +} +@media only screen and (max-width: 767px) { + .ML__keyboard > div > div.keyboard-toolbar svg { + height: 13px; + width: 17px; + } +} +.ML__keyboard > div > div.keyboard-toolbar > .left { + justify-content: flex-start; + display: flex; + flex-flow: row; +} +.ML__keyboard > div > div.keyboard-toolbar > .right { + justify-content: flex-end; + display: flex; + flex-flow: row; +} +.ML__keyboard > div > div.keyboard-toolbar > div > div { + display: flex; + align-items: baseline; + justify-content: center; + pointer-events: all; + color: var(--keyboard-text); + fill: currentColor; + background: 0; + font-size: 110%; + cursor: pointer; + min-height: 0; + padding: 4px 10px; + margin: 7px 4px 6px; + box-shadow: none; + border: none; + border-bottom: 2px solid transparent; +} +.ML__keyboard > div > div.keyboard-toolbar > div > div.disabled.pressed svg, +.ML__keyboard > div > div.keyboard-toolbar > div > div.disabled:hover svg, +.ML__keyboard > div > div.keyboard-toolbar > div > div.disabled svg { + color: var(--keyboard-text); + opacity: 0.2; +} +@media only screen and (max-width: 414px) { + .ML__keyboard > div > div.keyboard-toolbar > div > div { + font-size: 100%; + padding: 0 6px 0 0; + } +} +@media only screen and (max-width: 767px) { + .ML__keyboard > div > div.keyboard-toolbar > div > div { + padding-left: 4px; + padding-right: 4px; + font-size: 90%; + } +} +.ML__keyboard > div > div.keyboard-toolbar > div > div.active, +.ML__keyboard > div > div.keyboard-toolbar > div > div.pressed, +.ML__keyboard > div > div.keyboard-toolbar > div > div:active, +.ML__keyboard > div > div.keyboard-toolbar > div > div:hover { + color: var(--keyboard-text-active); +} +.ML__keyboard > div > div.keyboard-toolbar > div > div.selected { + color: var(--keyboard-text-active); + border-bottom: 2px solid var(--keyboard-text-active); + margin-bottom: 8px; + padding-bottom: 0; +} +.ML__keyboard div .rows { + border: 0; + border-collapse: separate; + clear: both; + margin: auto; + display: flex; + flex-flow: column; + align-items: center; +} +.ML__keyboard div .rows > ul { + list-style: none; + height: 40px; + margin: 0 0 3px; + padding: 0; +} +.ML__keyboard div .rows > ul > li { + display: flex; + flex-flow: column; + align-items: center; + justify-content: center; + width: 34px; + margin-right: 2px; + height: 40px; + box-sizing: border-box; + padding: 8px 0; + vertical-align: top; + text-align: center; + float: left; + color: var(--keycap-text); + fill: currentColor; + font-size: 20px; + background: var(--keycap-background); + border: 1px solid var(--keycap-background-border); + border-bottom-color: var(--keycap-background-border-bottom); + border-radius: 5px; + pointer-events: all; + position: relative; + overflow: hidden; + -webkit-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; + -webkit-tap-highlight-color: transparent; +} +.ML__keyboard div .rows > ul > li:last-child { + margin-right: 0; +} +.ML__keyboard div .rows > ul > li.small { + font-size: 16px; +} +.ML__keyboard div .rows > ul > li.tt { + color: var(--keyboard-text-active); +} +.ML__keyboard div .rows > ul > li.bottom { + justify-content: flex-end; +} +.ML__keyboard div .rows > ul > li.left { + align-items: flex-start; + padding-left: 4px; +} +.ML__keyboard div .rows > ul > li.right { + align-items: flex-end; + padding-right: 4px; +} +.ML__keyboard div .rows > ul > li svg { + width: 20px; + height: 20px; +} +.ML__keyboard div .rows > ul > li .warning { + height: 25px; + width: 25px; + min-height: 25px; + min-width: 25px; + background: #cd0030; + color: #fff; + border-radius: 100%; + padding: 5px; + display: flex; + align-items: center; + justify-content: center; + margin-bottom: -2px; +} +.ML__keyboard div .rows > ul > li .warning svg { + width: 16px; + height: 16px; +} +@media only screen and (max-width: 768px) { + .ML__keyboard div .rows > ul > li .warning { + height: 16px; + width: 16px; + min-height: 16px; + min-width: 16px; + } + .ML__keyboard div .rows > ul > li .warning svg { + width: 14px; + height: 14px; + } +} +.ML__keyboard div .rows > ul > li > .w0 { + width: 0; +} +.ML__keyboard div .rows > ul > li > .w5 { + width: 16px; +} +.ML__keyboard div .rows > ul > li > .w15 { + width: 52px; +} +.ML__keyboard div .rows > ul > li > .w20 { + width: 70px; +} +.ML__keyboard div .rows > ul > li > .w50 { + width: 178px; +} +.ML__keyboard div .rows > ul > li.separator { + background: transparent; + border: none; + pointer-events: none; +} +@media only screen and (max-width: 560px) { + .ML__keyboard div .rows > ul > li.if-wide { + display: none; + } +} +.ML__keyboard div .rows > ul > li.tex-math { + font-size: 25px; +} +.ML__keyboard div .rows > ul > li.pressed, +.ML__keyboard div .rows > ul > li:hover { + background: var(--keycap-background-active); + color: var(--keyboard-text-active); +} +.ML__keyboard div .rows > ul > li.action.active, +.ML__keyboard div .rows > ul > li.action:active, +.ML__keyboard div .rows > ul > li.keycap.active, +.ML__keyboard div .rows > ul > li.keycap:active { + transform: translateY(-20px) scale(1.4); + z-index: 100; + color: var(--keyboard-text-active); +} +.ML__keyboard div .rows > ul > li.modifier.active, +.ML__keyboard div .rows > ul > li.modifier:active { + background: var(--keyboard-text-active); + color: var(--keycap-text-active); +} +.ML__keyboard div .rows > ul > li.action.font-glyph, +.ML__keyboard div .rows > ul > li.modifier.font-glyph { + font-size: 18px; +} +@media only screen and (max-width: 767px) { + .ML__keyboard div .rows > ul > li.action.font-glyph, + .ML__keyboard div .rows > ul > li.modifier.font-glyph { + font-size: 16px; + } +} +@media only screen and (max-width: 767px) { + .ML__keyboard div .rows > ul > li.bigfnbutton, + .ML__keyboard div .rows > ul > li.fnbutton { + font-size: 12px; + } +} +.ML__keyboard div .rows > ul > li.bigfnbutton { + font-size: 14px; +} +@media only screen and (max-width: 767px) { + .ML__keyboard div .rows > ul > li.bigfnbutton { + font-size: 9px; + } +} +.ML__keyboard div .rows > ul > li.action, +.ML__keyboard div .rows > ul > li.modifier { + background-color: var(--keycap-modifier-background); + border-bottom-color: var(--keycap-modifier-border); + border-color: var(--keycap-modifier-border) var(--keycap-modifier-border) + var(--keycap-modifier-border-bottom); + font-size: 65%; + font-weight: 100; +} +.ML__keyboard div .rows > ul > li.action.selected, +.ML__keyboard div .rows > ul > li.modifier.selected { + color: var(--keyboard-text-active); +} +.ML__keyboard div .rows > ul > li.action.selected.active, +.ML__keyboard div .rows > ul > li.action.selected.pressed, +.ML__keyboard div .rows > ul > li.action.selected:active, +.ML__keyboard div .rows > ul > li.action.selected:hover, +.ML__keyboard div .rows > ul > li.modifier.selected.active, +.ML__keyboard div .rows > ul > li.modifier.selected.pressed, +.ML__keyboard div .rows > ul > li.modifier.selected:active, +.ML__keyboard div .rows > ul > li.modifier.selected:hover { + color: #fff; +} +.ML__keyboard div .rows > ul > li.keycap.w50 { + font-size: 80%; + padding-top: 10px; + font-weight: 100; +} +.ML__keyboard div .rows > ul > li small { + color: #555; +} +@media only screen and (max-width: 767px) { + .ML__keyboard div .rows > ul > li small { + font-size: 9px; + } +} +.ML__keyboard div .rows > ul > li aside { + font-family: system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, + Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, + sans-serif; + font-size: 10px; + line-height: 10px; + color: #666; +} +@media only screen and (max-width: 767px) { + .ML__keyboard div .rows > ul > li aside { + display: none; + } +} +@media only screen and (max-width: 414px) { + .ML__keyboard div .rows > ul > li { + width: 29px; + margin-right: 2px; + } + .ML__keyboard div .rows > ul > .w5 { + width: 13.5px; + } + .ML__keyboard div .rows > ul > .w15 { + width: 44.5px; + } + .ML__keyboard div .rows > ul > .w20 { + width: 60px; + } + .ML__keyboard div .rows > ul > .w50 { + width: 153px; + } +} +@media only screen and (min-width: 415px) and (max-width: 768px) { + .ML__keyboard div .rows > ul > li { + width: 37px; + margin-right: 3px; + } + .ML__keyboard div .rows > ul > .w5 { + width: 17px; + } + .ML__keyboard div .rows > ul > .w15 { + width: 57px; + } + .ML__keyboard div .rows > ul > .w20 { + width: 77px; + } + .ML__keyboard div .rows > ul > .w50 { + width: 197px; + } +} +@media only screen and (min-width: 768px) and (max-width: 1024px) { + .ML__keyboard div .rows > ul { + height: 52px; + } + .ML__keyboard div .rows > ul > li { + height: 52px; + width: 51px; + margin-right: 4px; + } + .ML__keyboard div .rows > ul > .w5 { + width: 23.5px; + } + .ML__keyboard div .rows > ul > .w15 { + width: 78.5px; + } + .ML__keyboard div .rows > ul > .w20 { + width: 106px; + } + .ML__keyboard div .rows > ul > .w50 { + width: 271px; + } +} +@media only screen and (min-width: 1025px) { + .ML__keyboard div .rows > ul { + height: 52px; + } + .ML__keyboard div .rows > ul > li { + height: 52px; + width: 66px; + margin-right: 6px; + } + .ML__keyboard div .rows > ul > .action, + .ML__keyboard div .rows > ul > .modifier { + font-size: 80%; + } + .ML__keyboard div .rows > ul > .w5 { + width: 30px; + } + .ML__keyboard div .rows > ul > .w15 { + width: 102px; + } + .ML__keyboard div .rows > ul > .w20 { + width: 138px; + } + .ML__keyboard div .rows > ul > .w50 { + width: 354px; + } +} +@media (prefers-color-scheme: dark) { + body:not([theme='light']) .ML__keyboard { + --hue: 206; + --keyboard-background: hsl(var(--hue), 19%, 38%); + --keyboard-text: #f0f0f0; + --keyboard-text-active: hsl(var(--hue), 100%, 60%); + --keyboard-background-border: #333; + --keycap-background: hsl(var(--hue), 25%, 39%); + --keycap-background-active: hsl(var(--hue), 35%, 42%); + --keycap-background-border: hsl(var(--hue), 25%, 35%); + --keycap-background-border-bottom: #426b8a; + --keycap-text: #d0d0d0; + --keycap-text-active: #000; + --keycap-secondary-text: #fff; + --keycap-modifier-background: hsl(var(--hue), 35%, 40%); + --keycap-modifier-border: hsl(var(--hue), 35%, 35%); + --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-background: hsl(var(--hue), 19%, 38%); + --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-text: #d1d1d1; + } +} +body[theme='dark'] .ML__keyboard { + --hue: 206; + --keyboard-background: hsl(var(--hue), 19%, 38%); + --keyboard-text: #f0f0f0; + --keyboard-text-active: hsl(var(--hue), 100%, 60%); + --keyboard-background-border: #333; + --keycap-background: hsl(var(--hue), 25%, 39%); + --keycap-background-active: hsl(var(--hue), 35%, 42%); + --keycap-background-border: hsl(var(--hue), 25%, 35%); + --keycap-background-border-bottom: #426b8a; + --keycap-text: #d0d0d0; + --keycap-text-active: #000; + --keycap-secondary-text: #fff; + --keycap-modifier-background: hsl(var(--hue), 35%, 40%); + --keycap-modifier-border: hsl(var(--hue), 35%, 35%); + --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-background: hsl(var(--hue), 19%, 38%); + --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-text: #d1d1d1; +} +div.ML__keyboard.material { + --keyboard-background: rgba(209, 213, 217, 0.9); + --keyboard-background-border: #ddd; + --keycap-background: transparent; + --keycap-background-active: #cccfd1; + --keycap-background-border: transparent; + --keyboard-alternate-background: #efefef; + --keyboard-alternate-text: #000; + font-family: Roboto, sans-serif; +} +div.ML__keyboard.material.alternate-keys { + background: var(--keyboard-alternate-background); + border: 1px solid transparent; + border-radius: 5px; + box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22); +} +div.ML__keyboard.material.alternate-keys ul li.active, +div.ML__keyboard.material.alternate-keys ul li.pressed, +div.ML__keyboard.material.alternate-keys ul li:active, +div.ML__keyboard.material.alternate-keys ul li:hover { + border: 1px solid transparent; + background: #5f97fc; + color: #fff; + fill: currentColor; +} +div.ML__keyboard.material .keyboard-toolbar > div > div { + font-size: 16px; +} +div.ML__keyboard.material .keyboard-toolbar div.div.active, +div.ML__keyboard.material .keyboard-toolbar div.div.pressed, +div.ML__keyboard.material .keyboard-toolbar div div:active, +div.ML__keyboard.material .keyboard-toolbar div div:hover { + color: #5f97fc; + fill: currentColor; +} +div.ML__keyboard.material .keyboard-toolbar > div > .selected { + color: #5f97fc; + fill: currentColor; + border-bottom: 2px solid #5f97fc; + margin-bottom: 8px; + padding-bottom: 0; +} +div.ML__keyboard.material div > .rows > ul > .keycap { + background: transparent; + border: 1px solid transparent; + border-radius: 5px; + color: var(--keycap-text); + fill: currentColor; + transition: none; +} +div.ML__keyboard.material div > .rows > ul > .keycap.tt { + color: #5f97fc; +} +div.ML__keyboard.material div > .rows > ul > .keycap[data-key=' '] { + margin-top: 10px; + margin-bottom: 10px; + height: 20px; + background: #e0e0e0; +} +div.ML__keyboard.material div > .rows > ul > .keycap[data-key=' '].active, +div.ML__keyboard.material div > .rows > ul > .keycap[data-key=' '].pressed, +div.ML__keyboard.material div > .rows > ul > .keycap[data-key=' ']:active, +div.ML__keyboard.material div > .rows > ul > .keycap[data-key=' ']:hover { + background: #d0d0d0; + box-shadow: none; + transform: none; +} +div.ML__keyboard.material div > .rows > ul > .keycap:not([data-key=' ']):hover { + border: 1px solid transparent; + background: var(--keycap-background-active); + box-shadow: none; +} +div.ML__keyboard.material div > .rows > ul > .keycap:not([data-key=' ']).active, +div.ML__keyboard.material + div + > .rows + > ul + > .keycap:not([data-key=' ']).pressed, +div.ML__keyboard.material + div + > .rows + > ul + > .keycap:not([data-key=' ']):active { + background: var(--keyboard-alternate-background); + color: var(--keyboard-alternate-text); + box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); +} +@media only screen and (max-width: 767px) { + div.ML__keyboard.material + div + > .rows + > ul + > .keycap:not([data-key=' ']).active, + div.ML__keyboard.material + div + > .rows + > ul + > .keycap:not([data-key=' ']).pressed, + div.ML__keyboard.material + div + > .rows + > ul + > .keycap:not([data-key=' ']):active { + box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), + 0 6px 6px rgba(0, 0, 0, 0.23); + font-size: 10px; + vertical-align: top; + width: 19.5px; + margin-right: 10px; + margin-left: 10px; + transform: translateY(-20px) scale(2); + transition: none; + justify-content: flex-start; + padding: 2px 0 0; + z-index: 100; + } +} +@media only screen and (max-width: 414px) { + div.ML__keyboard.material + div + > .rows + > ul + > .keycap:not([data-key=' ']).active, + div.ML__keyboard.material + div + > .rows + > ul + > .keycap:not([data-key=' ']).pressed, + div.ML__keyboard.material + div + > .rows + > ul + > .keycap:not([data-key=' ']):active { + width: 16.5px; + } +} +@media only screen and (max-width: 767px) { + div.ML__keyboard.material div > .rows > ul > .keycap:last-child.active, + div.ML__keyboard.material div > .rows > ul > .keycap:last-child:active { + margin-right: 0; + margin-left: 14px; + } +} +div.ML__keyboard.material div div.rows ul li.action, +div.ML__keyboard.material div div.rows ul li.modifier { + background: transparent; + border: 0; + color: #869096; + fill: currentColor; + font-size: 16px; + transition: none; +} +div.ML__keyboard.material div div.rows ul li.action.selected, +div.ML__keyboard.material div div.rows ul li.modifier.selected { + color: #5f97fc; + border-radius: 0; + border-bottom: 2px solid #5f97fc; +} +div.ML__keyboard.material div div.rows ul li.action.active, +div.ML__keyboard.material div div.rows ul li.action.pressed, +div.ML__keyboard.material div div.rows ul li.action:active, +div.ML__keyboard.material div div.rows ul li.action:hover, +div.ML__keyboard.material div div.rows ul li.modifier.active, +div.ML__keyboard.material div div.rows ul li.modifier.pressed, +div.ML__keyboard.material div div.rows ul li.modifier:active, +div.ML__keyboard.material div div.rows ul li.modifier:hover { + border: 0; + color: var(--keycap-text); + background: var(--keycap-background-active); + box-shadow: none; +} +div.ML__keyboard.material div div.rows ul li.bigfnbutton, +div.ML__keyboard.material div div.rows ul li.fnbutton { + background: transparent; + border: 0; +} +div.ML__keyboard.material div div.rows ul li.bigfnbutton.selected, +div.ML__keyboard.material div div.rows ul li.fnbutton.selected { + color: #5f97fc; + fill: currentColor; + border-radius: 0; + border-bottom: 2px solid #5f97fc; +} +div.ML__keyboard.material div div.rows ul li.bigfnbutton.active, +div.ML__keyboard.material div div.rows ul li.bigfnbutton.pressed, +div.ML__keyboard.material div div.rows ul li.bigfnbutton:active, +div.ML__keyboard.material div div.rows ul li.bigfnbutton:hover, +div.ML__keyboard.material div div.rows ul li.fnbutton.active, +div.ML__keyboard.material div div.rows ul li.fnbutton.pressed, +div.ML__keyboard.material div div.rows ul li.fnbutton:active, +div.ML__keyboard.material div div.rows ul li.fnbutton:hover { + border: 0; + color: #5f97fc; + fill: currentColor; + background: var(--keycap-background-active); + box-shadow: none; +} +@media (prefers-color-scheme: dark) { + body:not([theme='light']) div.ML__keyboard.material { + --hue: 198; + --keyboard-background: hsl(var(--hue), 19%, 18%); + --keyboard-text: #d4d6d7; + --keyboard-text-active: #5f97fc; + --keyboard-background-border: #333; + --keycap-background: hsl(var(--hue), 25%, 39%); + --keycap-background-active: #5f97fc; + --keycap-background-border: transparent; + --keycap-background-border-bottom: transparent; + --keycap-text: #d0d0d0; + --keycap-text-active: #d4d6d7; + --keycap-secondary-text: #5f97fc; + --keycap-modifier-background: hsl(var(--hue), 35%, 40%); + --keycap-modifier-border: hsl(var(--hue), 35%, 35%); + --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-background: hsl(var(--hue), 8%, 2%); + --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-text: #d1d1d1; + } +} +body[theme='dark'] div.ML__keyboard.material { + --hue: 198; + --keyboard-background: hsl(var(--hue), 19%, 18%); + --keyboard-text: #d4d6d7; + --keyboard-text-active: #5f97fc; + --keyboard-background-border: #333; + --keycap-background: hsl(var(--hue), 25%, 39%); + --keycap-background-active: #5f97fc; + --keycap-background-border: transparent; + --keycap-background-border-bottom: transparent; + --keycap-text: #d0d0d0; + --keycap-text-active: #d4d6d7; + --keycap-secondary-text: #5f97fc; + --keycap-modifier-background: hsl(var(--hue), 35%, 40%); + --keycap-modifier-border: hsl(var(--hue), 35%, 35%); + --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-background: hsl(var(--hue), 8%, 2%); + --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); + --keyboard-alternate-text: #d1d1d1; +} +.ML__error { + background-image: radial-gradient( + ellipse at center, + #cc0041, + transparent 70% + ); + background-repeat: repeat-x; + background-size: 3px 3px; + background-position: 0 98%; +} +.ML__suggestion { + opacity: 0.5; +} +.ML__placeholder { + opacity: 0.7; + padding-left: 0.5ex; + padding-right: 0.5ex; +} +.ML__keystroke-caption > span { + min-width: 14px; + margin: 0 8px 0 0; + padding: 4px; + background-color: var(--keystroke); + color: var(--on-keystroke); + fill: currentColor; + font-family: system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, + Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, + sans-serif; + font-size: 1em; + border-radius: 6px; + border: 2px solid var(--keystroke-border); +} +.ML__virtual-keyboard-toggle.pressed { + background: hsla(0, 0%, 70%, 0.5); +} +.ML__virtual-keyboard-toggle:focus { + outline: none; + border-radius: 50%; + border: 2px solid var(--primary); +} +.ML__virtual-keyboard-toggle.active, +.ML__virtual-keyboard-toggle.active:hover { + background: hsla(0, 0%, 70%, 0.5); + color: #000; + fill: currentColor; +} +div.ML__popover.is-visible { + visibility: visible; + -webkit-animation: ML__fade-in 0.15s cubic-bezier(0, 0, 0.2, 1); + animation: ML__fade-in 0.15s cubic-bezier(0, 0, 0.2, 1); +} +@-webkit-keyframes ML__fade-in { + 0% { + opacity: 0; + } + to { + opacity: 1; + } +} +@keyframes ML__fade-in { + 0% { + opacity: 0; + } + to { + opacity: 1; + } +} +.ML__popover__content { + border-radius: 6px; + padding: 2px; + cursor: pointer; + min-height: 100px; + display: flex; + flex-direction: column; + justify-content: center; + margin-left: 8px; + margin-right: 8px; +} +.ML__popover__content a { + color: #5ea6fd; + padding-top: 0.3em; + margin-top: 0.4em; + display: block; +} +.ML__popover__content a:hover { + color: #5ea6fd; + text-decoration: underline; +} +.ML__popover__content.active, +.ML__popover__content.pressed, +.ML__popover__content:hover { + background: hsla(0, 0%, 100%, 0.1); +} +.ML__popover__command { + font-size: 1.6rem; +} +.ML__popover__prev-shortcut { + height: 31px; + opacity: 0.1; + cursor: pointer; + margin-left: 8px; + margin-right: 8px; + padding-top: 4px; + padding-bottom: 2px; +} +.ML__popover__next-shortcut:hover, +.ML__popover__prev-shortcut:hover { + opacity: 0.3; +} +.ML__popover__next-shortcut.active, +.ML__popover__next-shortcut.pressed, +.ML__popover__prev-shortcut.active, +.ML__popover__prev-shortcut.pressed { + opacity: 1; +} +.ML__popover__next-shortcut > span, +.ML__popover__prev-shortcut > span { + padding: 5px; + border-radius: 50%; + width: 20px; + height: 20px; + display: inline-block; +} +.ML__popover__prev-shortcut > span > span { + margin-top: -2px; + display: block; +} +.ML__popover__next-shortcut > span > span { + margin-top: 2px; + display: block; +} +.ML__popover__next-shortcut:hover > span, +.ML__popover__prev-shortcut:hover > span { + background: hsla(0, 0%, 100%, 0.1); +} +.ML__popover__next-shortcut { + height: 34px; + opacity: 0.1; + cursor: pointer; + margin-left: 8px; + margin-right: 8px; + padding-top: 2px; + padding-bottom: 4px; +} +.ML__popover__shortcut { + font-size: 0.8em; + margin-top: 0.25em; +} +.ML__popover__note, +.ML__popover__shortcut { + font-family: system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, + Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, + sans-serif; + opacity: 0.7; + padding-top: 0.25em; +} +.ML__popover__note { + font-size: 0.8rem; + line-height: 1em; + padding-left: 0.5em; + padding-right: 0.5em; +} +.ML__shortcut-join { + opacity: 0.5; +} +.ML__scroller { + position: fixed; + z-index: 1; + top: 0; + height: 100vh; + width: 200px; +} diff --git a/dist/mathlive.d.ts b/dist/mathlive.d.ts index 0a3397f5f..499bc3641 100644 --- a/dist/mathlive.d.ts +++ b/dist/mathlive.d.ts @@ -38,6 +38,7 @@ declare type MathFieldCallback = (mathfield: MathField) => void; @property {boolean} keypressVibration? @property {string} keypressSound? @property {string} plonkSound? + @property {boolean} readOnly? @property {"mathlive" | "sre"} textToSpeechRules? @property {"ssml" | "mac"} textToSpeechMarkup? @property {object} textToSpeechRulesOptions? @@ -99,6 +100,7 @@ declare type MathFieldConfig = { keypressVibration?: boolean; keypressSound?: string; plonkSound?: string; + readOnly?: boolean; textToSpeechRules?: "mathlive" | "sre"; textToSpeechMarkup?: "ssml" | "mac"; textToSpeechRulesOptions?: any; diff --git a/dist/mathlive.js b/dist/mathlive.js index 97616a4cf..bbedb8866 100644 --- a/dist/mathlive.js +++ b/dist/mathlive.js @@ -3602,7 +3602,7 @@ var global, factory; t.length > 1 || '​' === t ) - return K[e]; + return R[e]; if ('bb' === e || 'scr' === e) { if (!/^[A-Z ]$/.test(t)) return null; } else if ('cal' === e) { @@ -3621,7 +3621,7 @@ var global, factory; ) ) return null; - return K[e]; + return R[e]; })(this.body, e)), t.fontShape && (this.classes += @@ -3664,8 +3664,8 @@ var global, factory; }[e[2] || ''] || ''))); } if ( - (N[e] - ? (this.classes += ' ' + N[e]) + (K[e] + ? (this.classes += ' ' + K[e]) : e && this.setStyle('font-family', e), this.body && this.body.length > 0 && i) ) { @@ -4003,33 +4003,33 @@ var global, factory; const e = t.type; return 'first' === e ? 'none' : 'textord' === e ? 'mord' : e; } - function P(t) { + function I(t) { return t ? Array.isArray(t) ? t.reduce((t, e) => Math.max(t, e.height), 0) : t.height : 0; } - function I(t) { + function P(t) { return t ? Array.isArray(t) ? t.reduce((t, e) => Math.max(t, e.depth), 0) : t.depth : 0; } - function B(t, e) { + function O(t, e) { if (Array.isArray(t)) { const i = []; for (const e of t) e && i.push(e); - if (1 === i.length) return B(i[0], e); + if (1 === i.length) return O(i[0], e); } return new L(t, e); } - function O(t, e, i) { - const s = B(e, i); + function B(t, e, i) { + const s = O(e, i); return (s.type = t), s; } - function R(t, e) { + function $(t, e) { if (!e || 0 === e.length) { if (t instanceof L) return t; if (Array.isArray(t) && 1 === t.length) return t[0]; @@ -4046,7 +4046,7 @@ var global, factory; i ); } - const K = { + const R = { ams: 'AMS-Regular', bb: 'AMS-Regular', cal: 'Caligraphic-Regular', @@ -4058,7 +4058,7 @@ var global, factory; math: 'Math-Regular', mainit: 'Main-Italic', }, - N = { + K = { ams: 'ML__ams', bb: 'ML__bb', cal: 'ML__cal', @@ -4070,7 +4070,7 @@ var global, factory; math: 'ML__mathit', mainit: 'ML__mainit', }; - var $ = { + var N = { coalesce: function t(e) { if (!e || 0 === e.length) return []; e[0].children = t(e[0].children); @@ -4080,29 +4080,29 @@ var global, factory; ((e[s].children = t(e[s].children)), i.push(e[s])); return i; }, - makeSpan: B, + makeSpan: O, makeOp: function(t, e) { - return O('mop', t, e); + return B('mop', t, e); }, makeOrd: function(t, e) { - return O('mord', t, e); + return B('mord', t, e); }, makeRel: function(t, e) { - return O('mrel', t, e); + return B('mrel', t, e); }, makeClose: function(t, e) { - return O('mclose', t, e); + return B('mclose', t, e); }, makeOpen: function(t, e) { - return O('mopen', t, e); + return B('mopen', t, e); }, makeInner: function(t, e) { - return O('minner', t, e); + return B('minner', t, e); }, makePunct: function(t, e) { - return O('mpunct', t, e); + return B('mpunct', t, e); }, - makeSpanOfType: O, + makeSpanOfType: B, makeSymbol: function(t, e, i) { const s = new L(e, i), a = m.getCharacterMetrics(e, t); @@ -4123,7 +4123,7 @@ var global, factory; Array.isArray(e[t]) && (1 === e[t].length ? (e[t] = e[t][0]) - : (e[t] = B(e[t]))); + : (e[t] = O(e[t]))); if ('shift' === i) a = -e[0].depth - s; else if ('bottom' === i) a = -s; else if ('top' === i) { @@ -4168,22 +4168,22 @@ var global, factory; for (const t of e) if ('number' == typeof t) o += t; else { - const e = B([r, t]); + const e = O([r, t]); e.setTop(-t.depth - o), l.push(e), (o += t.height + t.depth); } - const c = B(l, 'vlist'); + const c = O(l, 'vlist'); return ( - (c.depth = Math.max(a, I(c) || 0)), - (c.height = Math.max(-o, P(c) || 0)), + (c.depth = Math.max(a, P(c) || 0)), + (c.height = Math.max(-o, I(c) || 0)), c ); }, - makeHlist: R, + makeHlist: $, makeStyleWrap: function(t, e, i, s, a) { a = a || ''; - const o = R(e, (a += ' style-wrap ') + i.adjustTo(s)); + const o = $(e, (a += ' style-wrap ') + i.adjustTo(s)); o.type = t; const n = s.sizeMultiplier / i.sizeMultiplier; return ( @@ -4196,8 +4196,8 @@ var global, factory; makeSVG: function(t, e, i) { return (t.svgOverlay = e), (t.svgStyle = i), t; }, - height: P, - depth: I, + height: I, + depth: P, skew: function(t) { if (!t) return 0; if (Array.isArray(t)) { @@ -6679,12 +6679,12 @@ var global, factory; LETTER: wt, LETTER_AND_DIGITS: St, }; - const Mt = $.makeSymbol, - Ct = $.makeSpan, - _t = $.makeVlist; + const Mt = N.makeSymbol, + Ct = N.makeSpan, + _t = N.makeVlist; function Tt(t, e, i, s, a, o) { const n = Mt('Size' + i + '-Regular', At.getValue('math', e)), - r = $.makeStyleWrap( + r = N.makeStyleWrap( t, Ct(n, 'delimsizing size' + i), a.mathstyle, @@ -6817,7 +6817,7 @@ var global, factory; _.setStyle('color', a.color), 'number' == typeof a.opacity && _.setStyle('opacity', a.opacity), - $.makeStyleWrap( + N.makeStyleWrap( t, Ct(_, 'delimsizing mult'), a.mathstyle, @@ -6876,7 +6876,7 @@ var global, factory; '\\gt', ], qt = [0, 1.2, 1.8, 2.4, 3], - Pt = [ + It = [ { type: 'small', mathstyle: M.SCRIPTSCRIPT }, { type: 'small', mathstyle: M.SCRIPT }, { type: 'small', mathstyle: M.TEXT }, @@ -6885,13 +6885,13 @@ var global, factory; { type: 'large', size: 3 }, { type: 'large', size: 4 }, ], - It = [ + Pt = [ { type: 'small', mathstyle: M.SCRIPTSCRIPT }, { type: 'small', mathstyle: M.SCRIPT }, { type: 'small', mathstyle: M.TEXT }, { type: 'stack' }, ], - Bt = [ + Ot = [ { type: 'small', mathstyle: M.SCRIPTSCRIPT }, { type: 'small', mathstyle: M.SCRIPT }, { type: 'small', mathstyle: M.TEXT }, @@ -6901,13 +6901,13 @@ var global, factory; { type: 'large', size: 4 }, { type: 'stack' }, ]; - function Ot(t, e, i, s, a, o) { - if (!e || 0 === e.length || '.' === e) return Rt(t, a, t); + function Bt(t, e, i, s, a, o) { + if (!e || 0 === e.length || '.' === e) return $t(t, a, t); let n; '<' === e || '\\lt' === e ? (e = '\\langle') : ('>' !== e && '\\gt' !== e) || (e = '\\rangle'), - (n = Et.includes(e) ? Pt : Dt.includes(e) ? Bt : It); + (n = Et.includes(e) ? It : Dt.includes(e) ? Ot : Pt); const r = (function(t, e, i, s) { for ( let o = Math.min(2, 3 - s.mathstyle.size); @@ -6938,7 +6938,7 @@ var global, factory; return 'small' === r.type ? (function(t, e, i, s, a, o) { const n = Mt('AMS-Regular', At.getValue('math', e)), - r = $.makeStyleWrap(t, n, a.mathstyle, i, o); + r = N.makeStyleWrap(t, n, a.mathstyle, i, o); return ( s && r.setTop( @@ -6957,8 +6957,8 @@ var global, factory; ? Tt(t, e, r.size, s, a, o) : Ft(t, e, i, s, a, o); } - function Rt(t, e, i) { - return $.makeSpanOfType( + function $t(t, e, i) { + return N.makeSpanOfType( t, '', 'sizing' + @@ -6967,10 +6967,10 @@ var global, factory; (i || '') ); } - var Kt = { + var Rt = { makeSizedDelim: function(t, e, i, s, a) { return '.' === e - ? Rt(t, s, a) + ? $t(t, s, a) : ('<' === e || '\\lt' === e ? (e = '\\langle') : ('>' !== e && '\\gt' !== e) || (e = '\\rangle'), @@ -6980,9 +6980,9 @@ var global, factory; ? Ft(t, e, qt[i], !1, s, a) : null); }, - makeCustomSizedDelim: Ot, + makeCustomSizedDelim: Bt, makeLeftRightDelim: function(t, e, i, s, a, o) { - if ('.' === e) return Rt(t, a, o); + if ('.' === e) return $t(t, a, o); const n = a.mathstyle.metrics.axisHeight * a.mathstyle.sizeMultiplier, @@ -6992,15 +6992,15 @@ var global, factory; c = Math.max(l, c); let h = (901 * c) / 500; return ( - (l = 2 * c - r), (h = Math.max(h, l)), Ot(t, e, h, !0, a, o) + (l = 2 * c - r), (h = Math.max(h, l)), Bt(t, e, h, !0, a, o) ); }, }; - const Nt = $.makeSpan, - $t = $.makeOrd, - Wt = $.makeInner, - Ht = $.makeHlist, - Vt = $.makeVlist, + const Kt = N.makeSpan, + Nt = N.makeOrd, + Wt = N.makeInner, + Ht = N.makeHlist, + Vt = N.makeVlist, Ut = /\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5/, jt = /^([A-Za-z]|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)$/, Gt = { @@ -7132,7 +7132,7 @@ var global, factory; } decomposeGroup(t) { const e = t.clone({ mathstyle: this.mathstyle }), - i = $t(Qt(e, this.body)); + i = Nt(Qt(e, this.body)); return ( this.cssId && (i.cssId = this.cssId), i.applyStyle({ @@ -7193,9 +7193,9 @@ var global, factory; t.clone({ mathstyle: this.mathstyle }), s[e] ) || [], - n = [$t(null)].concat(i); - (o = Math.max(o, $.depth(n))), - (a = Math.max(a, $.height(n))), + n = [Nt(null)].concat(i); + (o = Math.max(o, N.depth(n))), + (a = Math.max(a, N.height(n))), h.push(n); } let m = e === p - 1 ? 0 : this.jot || 0; @@ -7235,7 +7235,7 @@ var global, factory; g ? f.push(Xt(2 * h.arraycolsep)) : (y || x) && f.push(Xt(h.arraycolsep)), - f.push(Nt(u[b], 'col-align-' + i.align)), + f.push(Kt(u[b], 'col-align-' + i.align)), b++, (g = !0), (y = !1), @@ -7248,7 +7248,7 @@ var global, factory; (y = !1), (x = !1); else if (i.rule) { - const e = Nt(null, 'vertical-separator'); + const e = Kt(null, 'vertical-separator'); e.setStyle('height', l, 'em'), e.setStyle( 'margin-top', @@ -7274,19 +7274,19 @@ var global, factory; (this.rFence && '.' !== this.rFence) )) ) - return $t(f, 'mtable'); - const k = Nt(f, 'mtable'), - v = $.height(k), - w = $.depth(k); - return $t([ + return Nt(f, 'mtable'); + const k = Kt(f, 'mtable'), + v = N.height(k), + w = N.depth(k); + return Nt([ this.bind( t, - Kt.makeLeftRightDelim('mopen', this.lFence, v, w, t) + Rt.makeLeftRightDelim('mopen', this.lFence, v, w, t) ), k, this.bind( t, - Kt.makeLeftRightDelim('mclose', this.rFence, v, w, t) + Rt.makeLeftRightDelim('mclose', this.rFence, v, w, t) ), ]); } @@ -7297,12 +7297,12 @@ var global, factory; : M.toMathstyle(this.mathstyle), i = t.clone({ mathstyle: e }); let s = []; - this.numerPrefix && s.push($t(this.numerPrefix)); + this.numerPrefix && s.push(Nt(this.numerPrefix)); const a = this.continuousFraction ? e : e.fracNum(); s = s.concat(Qt(i.clone({ mathstyle: a }), this.numer)); const o = Ht(s, t.mathstyle.adjustTo(a)); let n = []; - this.denomPrefix && n.push($t(this.denomPrefix)); + this.denomPrefix && n.push(Nt(this.denomPrefix)); const r = this.continuousFraction ? e : e.fracDen(); n = n.concat(Qt(i.clone({ mathstyle: r }), this.denom)); const l = Ht(n, t.mathstyle.adjustTo(r)), @@ -7332,7 +7332,7 @@ var global, factory; (d += p - (d - u - (t + 0.5 * c))), t - 0.5 * c - (f - m) < p && (m += p - (t - 0.5 * c - (f - m))); - const s = Nt(null, ' frac-line'); + const s = Kt(null, ' frac-line'); s.applyStyle(this.getStyle()), (s.height = c); const a = []; o && (a.push(o), a.push(-d)), @@ -7350,7 +7350,7 @@ var global, factory; : e.metrics.delim2, b = this.bind( t, - Kt.makeCustomSizedDelim( + Rt.makeCustomSizedDelim( 'mopen', this.leftDelim, y, @@ -7360,7 +7360,7 @@ var global, factory; ), x = this.bind( t, - Kt.makeCustomSizedDelim( + Rt.makeCustomSizedDelim( 'mclose', this.rightDelim, y, @@ -7369,7 +7369,7 @@ var global, factory; ) ); b.applyStyle(this.getStyle()), x.applyStyle(this.getStyle()); - const k = $t( + const k = Nt( [b, g, x], t.parentSize !== t.size ? 'sizing reset-' + t.parentSize + ' ' + t.size @@ -7391,18 +7391,19 @@ var global, factory; o = 0, n = []; if ( - ((a = $.height(i) * s.sizeMultiplier), - (o = $.depth(i) * s.sizeMultiplier), + ((a = N.height(i) * s.sizeMultiplier), + (o = N.depth(i) * s.sizeMultiplier), this.leftDelim && (n.push( this.bind( t, - Kt.makeLeftRightDelim( + Rt.makeLeftRightDelim( 'mopen', this.leftDelim, a, o, - e + e, + 'ML__open' ) ) ), @@ -7415,7 +7416,7 @@ var global, factory; r = /ML__selected/.test(i[s].classes); (i[s] = this.bind( t, - Kt.makeLeftRightDelim( + Rt.makeLeftRightDelim( 'minner', i[s].delim, a, @@ -7455,7 +7456,14 @@ var global, factory; n.push( this.bind( t, - Kt.makeLeftRightDelim('mclose', s, a, o, e, i) + Rt.makeLeftRightDelim( + 'mclose', + s, + a, + o, + e, + (i || '') + ' ML__close' + ) ) ), n[n.length - 1].applyStyle(this.getStyle()); @@ -7472,55 +7480,55 @@ var global, factory; const n = Math.max( 2 * a, - ($.height(i) + $.depth(i)) * e.sizeMultiplier + (N.height(i) + N.depth(i)) * e.sizeMultiplier ) + (o + s), - r = Nt( - Kt.makeCustomSizedDelim('', '\\surd', n, !1, t), + r = Kt( + Rt.makeCustomSizedDelim('', '\\surd', n, !1, t), 'sqrt-sign' ); r.applyStyle(this.getStyle()); const l = r.height + r.depth - s; - l > $.height(i) + $.depth(i) + o && - (o = (o + l - ($.height(i) + $.depth(i))) / 2), - r.setTop(r.height - $.height(i) - (o + s)); - const c = Nt(null, t.mathstyle.adjustTo(M.TEXT) + ' sqrt-line'); + l > N.height(i) + N.depth(i) + o && + (o = (o + l - (N.height(i) + N.depth(i))) / 2), + r.setTop(r.height - N.height(i) - (o + s)); + const c = Kt(null, t.mathstyle.adjustTo(M.TEXT) + ' sqrt-line'); c.applyStyle(this.getStyle()), (c.height = s); const d = Vt(t, [i, o, c, s]); - if (!this.index) return this.bind(t, $t([r, d], 'sqrt')); + if (!this.index) return this.bind(t, Nt([r, d], 'sqrt')); const p = t.clone({ mathstyle: M.SCRIPTSCRIPT }), - m = Nt(Qt(p, this.index), e.adjustTo(M.SCRIPTSCRIPT)), + m = Kt(Qt(p, this.index), e.adjustTo(M.SCRIPTSCRIPT)), u = Math.max(r.height, d.height), f = Math.max(r.depth, d.depth), g = Vt(t, [m], 'shift', -0.6 * (u - f)); - return this.bind(t, $t([Nt(g, 'root'), r, d], 'sqrt')); + return this.bind(t, Nt([Kt(g, 'root'), r, d], 'sqrt')); } decomposeAccent(t) { const e = t.mathstyle; let i = Qt(t.cramp(), this.body); (this.superscript || this.subscript) && - (i = this.attachSupsub(t, $t(i), 'mord')); + (i = this.attachSupsub(t, Nt(i), 'mord')); let s = 0; Array.isArray(this.body) && 1 === this.body.length && this.body[0].isCharacterBox() && - (s = $.skew(i)); - const a = Math.min($.height(i), e.metrics.xHeight), - o = $.makeSymbol('Main-Regular', this.accent, 'math'); + (s = N.skew(i)); + const a = Math.min(N.height(i), e.metrics.xHeight), + o = N.makeSymbol('Main-Regular', this.accent, 'math'); o.italic = 0; const n = '⃗' === this.accent ? ' accent-vec' : ''; - let r = Nt(Nt(o), 'accent-body' + n); + let r = Kt(Kt(o), 'accent-body' + n); return ( (r = Vt(t, [i, -a, r])), r.children[1].setLeft(2 * s), - $t(r, 'accent') + Nt(r, 'accent') ); } decomposeLine(t) { const e = t.mathstyle, i = Qt(t.cramp(), this.body), s = h.defaultRuleThickness / e.sizeMultiplier, - a = Nt( + a = Kt( null, t.mathstyle.adjustTo(M.TEXT) + ' ' + @@ -7535,22 +7543,22 @@ var global, factory; ) o = Vt(t, [i, 3 * s, a, s]); else { - const e = Nt(i); - o = Vt(t, [s, a, 3 * s, e], 'top', $.height(e)); + const e = Kt(i); + o = Vt(t, [s, a, 3 * s, e], 'top', N.height(e)); } - return $t(o, this.position); + return Nt(o, this.position); } decomposeOverunder(t) { const e = Qt(t, this.body), i = t.clone({ mathstyle: 'scriptstyle' }), s = this.overscript - ? Nt( + ? Kt( Qt(i, this.overscript), t.mathstyle.adjustTo(i.mathstyle) ) : null, a = this.underscript - ? Nt( + ? Kt( Qt(i, this.underscript), t.mathstyle.adjustTo(i.mathstyle) ) @@ -7558,15 +7566,15 @@ var global, factory; return Yt(t, e, 0, 0, s, a, this.mathtype || 'mrel'); } decomposeOverlap(t) { - const e = Nt(Qt(t, this.body), 'inner'); - return $t( - [e, Nt(null, 'fix')], + const e = Kt(Qt(t, this.body), 'inner'); + return Nt( + [e, Kt(null, 'fix')], 'left' === this.align ? 'llap' : 'rlap' ); } decomposeRule(t) { const e = t.mathstyle, - i = $t('', 'rule'); + i = Nt('', 'rule'); let s = this.shift && !isNaN(this.shift) ? this.shift : 0; s /= e.sizeMultiplier; const a = this.width / e.sizeMultiplier, @@ -7594,7 +7602,7 @@ var global, factory; o = 0; if (this.symbol) { const n = s ? 'Size2-Regular' : 'Size1-Regular'; - (i = $.makeSymbol( + (i = N.makeSymbol( n, this.body, 'op-symbol ' + (s ? 'large-op' : 'small-op') @@ -7607,7 +7615,7 @@ var global, factory; this.bind(t, i); } else Array.isArray(this.body) - ? ((i = $.makeOp(Qt(t, this.body))), this.bind(t, i)) + ? ((i = N.makeOp(Qt(t, this.body))), this.bind(t, i)) : (i = this.makeSpan(t, this.body)); if (this.superscript || this.subscript) { const s = this.limits || 'auto'; @@ -7620,8 +7628,8 @@ var global, factory; return this.symbol && i.setTop(a), i; } decomposeBox(t) { - const e = $t(Qt(t, this.body)), - i = Nt(); + const e = Nt(Qt(t, this.body)), + i = Kt(); i.setStyle('position', 'absolute'); const s = 'number' == typeof this.padding ? this.padding : h.fboxsep; @@ -7643,7 +7651,7 @@ var global, factory; e.setStyle('display', 'inline-block'), e.setStyle('height', e.height + e.depth, 'em'), e.setStyle('vertical-align', -e.depth + s, 'em'); - const a = Nt([i, e]); + const a = Kt([i, e]); return ( a.setStyle('position', 'relative'), a.setStyle('vertical-align', -s + e.depth, 'em'), @@ -7655,7 +7663,7 @@ var global, factory; ); } decomposeEnclose(t) { - const e = $t(Qt(t, this.body)), + const e = Nt(Qt(t, this.body)), i = 'auto' === this.padding ? 0.2 : this.padding; e.setStyle('padding', i, 'em'), e.setStyle('display', 'inline-block'), @@ -7677,7 +7685,7 @@ var global, factory; this.notation.roundedbox && (e.setStyle( 'border-radius', - ($.height(e) + $.depth(e)) / 2, + (N.height(e) + N.depth(e)) / 2, 'em' ), e.setStyle('border', this.borderStyle)), @@ -7731,7 +7739,7 @@ var global, factory; : 'filter: drop-shadow(' + this.shadow + ')'), - $.makeSVG(e, s, t) + N.makeSVG(e, s, t) ); } return e; @@ -7758,11 +7766,11 @@ var global, factory; else if ('leftright' === this.type) i = this.decomposeLeftright(t); else if ('delim' === this.type) - (i = Nt(null, '')), (i.delim = this.delim); + (i = Kt(null, '')), (i.delim = this.delim); else if ('sizeddelim' === this.type) i = this.bind( t, - Kt.makeSizedDelim(this.cls, this.delim, this.size, t) + Rt.makeSizedDelim(this.cls, this.delim, this.size, t) ); else if ('line' === this.type) i = this.decomposeLine(t); else if ('overunder' === this.type) @@ -7771,7 +7779,7 @@ var global, factory; else if ('rule' === this.type) i = this.decomposeRule(t); else if ('styling' === this.type); else if ('msubsup' === this.type) - (i = $t('​')), + (i = Nt('​')), 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, ' '); @@ -7783,7 +7791,7 @@ var global, factory; ? this.makeSpan(t, ' ') : this.makeSpan(t, ' '); else if (this.width) - (i = Nt('​', 'mspace ')), + (i = Kt('​', 'mspace ')), this.width > 0 ? i.setWidth(this.width) : i.setStyle('margin-left', this.width, 'em'); @@ -7798,7 +7806,7 @@ var global, factory; ',': 'thinspace', '!': 'negativethinspace', }[this.body] || 'quad'; - i = Nt('​', 'mspace ' + t); + i = Kt('​', 'mspace ' + t); } else 'mathstyle' === this.type @@ -7826,6 +7834,15 @@ var global, factory; (Array.isArray(i) ? (i[i.length - 1].caret = this.caret) : (i.caret = this.caret)), + this.containsCaret && + (Array.isArray(i) + ? ((i[0].classes = + (i[0].classes || '') + ' ML__contains-caret'), + (i[i.length - 1].classes = + (i[i.length - 1].classes || '') + + ' ML__contains-caret')) + : (i.classes = + (i.classes || '') + ' ML__contains-caret')), !this.limits && (this.superscript || this.subscript)) ) if (Array.isArray(i)) { @@ -7841,18 +7858,18 @@ var global, factory; o = null; if (this.superscript) { const e = Qt(t.sup(), this.superscript); - a = Nt(e, s.adjustTo(s.sup())); + a = Kt(e, s.adjustTo(s.sup())); } if (this.subscript) { const e = Qt(t.sub(), this.subscript); - o = Nt(e, s.adjustTo(s.sub())); + o = Kt(e, s.adjustTo(s.sub())); } let n, r = 0, l = 0; this.isCharacterBox() || - ((r = $.height(e) - s.metrics.supDrop), - (l = $.depth(e) + s.metrics.subDrop)), + ((r = N.height(e) - s.metrics.supDrop), + (l = N.depth(e) + s.metrics.subDrop)), (n = s === M.DISPLAY ? s.metrics.sup1 @@ -7866,24 +7883,24 @@ var global, factory; (r = Math.max(r, n, a.depth + 0.25 * s.metrics.xHeight)), (l = Math.max(l, s.metrics.sub2)); const i = h.defaultRuleThickness; - if (r - $.depth(a) - ($.height(o) - l) < 4 * i) { - l = 4 * i - (r - a.depth) + $.height(o); - const t = 0.8 * s.metrics.xHeight - (r - $.depth(a)); + if (r - N.depth(a) - (N.height(o) - l) < 4 * i) { + l = 4 * i - (r - a.depth) + N.height(o); + const t = 0.8 * s.metrics.xHeight - (r - N.depth(a)); t > 0 && ((r += t), (l -= t)); } (p = Vt(t, [o, l, a, -r], 'individualShift')), - this.symbol && p.children[0].setLeft(-$.italic(e)); + this.symbol && p.children[0].setLeft(-N.italic(e)); } else o && !a ? ((l = Math.max( l, s.metrics.sub1, - $.height(o) - 0.8 * s.metrics.xHeight + N.height(o) - 0.8 * s.metrics.xHeight )), (p = Vt(t, [o], 'shift', l)), p.children[0].setRight(d), this.isCharacterBox() && - p.children[0].setLeft(-$.italic(e))) + p.children[0].setLeft(-N.italic(e))) : !o && a && ((r = Math.max( @@ -7893,21 +7910,21 @@ var global, factory; )), (p = Vt(t, [a], 'shift', -r)), p.children[0].setRight(d)); - const m = Nt(p, 'msubsup'); + const m = Kt(p, 'msubsup'); return ( this.caret && (m.caret = this.caret), - $.makeSpanOfType(i, [e, m]) + N.makeSpanOfType(i, [e, m]) ); } attachLimits(t, e, i, s) { const a = this.superscript - ? Nt( + ? Kt( Qt(t.sup(), this.superscript), t.mathstyle.adjustTo(t.mathstyle.sup()) ) : null, o = this.subscript - ? Nt( + ? Kt( Qt(t.sub(), this.subscript), t.mathstyle.adjustTo(t.mathstyle.sub()) ) @@ -7945,7 +7962,7 @@ var global, factory; } makeSpan(t, e) { const i = 'textord' === this.type ? 'mord' : this.type, - s = $.makeSpanOfType(i, e), + s = N.makeSpanOfType(i, e), a = this.getStyle(); s.applyStyle(a); const o = a && a.fontSize ? a.fontSize : 'size5'; @@ -7977,13 +7994,13 @@ var global, factory; } } function Xt(t) { - const e = Nt('​', 'arraycolsep'); + const e = Kt('​', 'arraycolsep'); return e.setWidth(t, 'em'), e; } function Jt(t, e, i, s) { const a = []; for (const o of e) { - const e = Nt(Qt(t, s)); + const e = Kt(Qt(t, s)); (e.depth = o.depth), (e.height = o.height), a.push(e), @@ -7993,7 +8010,7 @@ var global, factory; } function Yt(t, e, i, s, a, o, n) { if (!a && !o) return e; - e = Nt(e); + e = Kt(e); let r = 0, l = 0; a && (r = Math.max(h.bigOpSpacing1, h.bigOpSpacing3 - a.depth)), @@ -8003,10 +8020,10 @@ var global, factory; if (o && a) { const n = h.bigOpSpacing5 + - $.height(o) + - $.depth(o) + + N.height(o) + + N.depth(o) + l + - $.depth(e) + + N.depth(e) + i; (c = Vt( t, @@ -8017,15 +8034,15 @@ var global, factory; c.children[0].setLeft(-s), c.children[2].setLeft(s); } else if (o && !a) { - const a = $.height(e) - i; + const a = N.height(e) - i; (c = Vt(t, [h.bigOpSpacing5, o, l, e], 'top', a)), c.children[0].setLeft(-s); } else if (!o && a) { - const o = $.depth(e) + i; + const o = N.depth(e) + i; (c = Vt(t, [e, r, a, h.bigOpSpacing5], 'bottom', o)), c.children[1].setLeft(s); } - return $.makeSpanOfType(n, c, 'op-limits'); + return N.makeSpanOfType(n, c, 'op-limits'); } function Qt(t, e) { function i(t) { @@ -10100,7 +10117,7 @@ var global, factory; Array.isArray(t[e.row]) && (i = t[e.row][e.col] || null), !i || (0 !== i.length && 'first' === i[0].type) || - i.unshift(Be()), + i.unshift(Oe()), i ); } @@ -10216,28 +10233,28 @@ var global, factory; if ( (s || ('^' !== t[0] && '_' !== t[0]) || - ((i = Pe(t.substr(1), { ...e, noWrap: !0 })), + ((i = Ie(t.substr(1), { ...e, noWrap: !0 })), (t = t[0] + '{' + i.match + '}'), (t += qe(i.rest, e)), (s = !0)), s || ((i = t.match(/^(sqrt|\u221a)(.*)/)), i && - ((i = Pe(i[2], { ...e, noWrap: !0 })), + ((i = Ie(i[2], { ...e, noWrap: !0 })), (t = '\\sqrt{' + i.match + '}'), (t += qe(i.rest, e)), (s = !0))), s || ((i = t.match(/^(\\cbrt|\u221b)(.*)/)), i && - ((i = Pe(i[2], { ...e, noWrap: !0 })), + ((i = Ie(i[2], { ...e, noWrap: !0 })), (t = '\\sqrt[3]{' + i.match + '}'), (t += qe(i.rest, e)), (s = !0))), s || ((i = t.match(/^abs(.*)/)), i && - ((i = Pe(i[1], { ...e, noWrap: !0 })), + ((i = Ie(i[1], { ...e, noWrap: !0 })), (t = '\\left|' + i.match + '\\right|'), (t += qe(i.rest, e)), (s = !0))), @@ -10249,10 +10266,10 @@ var global, factory; (s = !0))), s || ((i = t.match(/^([^a-zA-Z({[_^\\\s"]+)(.*)/)), - i && ((t = Ie(i[1], e)), (t += qe(i[2], e)), (s = !0))), + i && ((t = Pe(i[1], e)), (t += qe(i[2], e)), (s = !0))), !s && /^(f|g|h)[^a-zA-Z]/.test(t) && - ((i = Pe(t.substring(1), { ...e, noWrap: !0 })), + ((i = Ie(t.substring(1), { ...e, noWrap: !0 })), (t = '(' === t[1] ? t[0] + '\\mleft(' + i.match + '\\mright)' @@ -10261,14 +10278,14 @@ var global, factory; (s = !0)), s || ((i = t.match(/^([a-zA-Z]+)(.*)/)), - i && ((t = Ie(i[1], e)), (t += qe(i[2], e)), (s = !0))), + i && ((t = Pe(i[1], e)), (t += qe(i[2], e)), (s = !0))), !s) ) if ( - ((i = Pe(t, { ...e, noWrap: !0 })), + ((i = Ie(t, { ...e, noWrap: !0 })), i.match && '/' === i.rest[0]) ) { - const a = Pe(i.rest.substr(1), { ...e, noWrap: !0 }); + const a = Ie(i.rest.substr(1), { ...e, noWrap: !0 }); a.match && (t = '\\frac{' + @@ -10295,7 +10312,7 @@ var global, factory; t ); } - function Pe(t, e) { + function Ie(t, e) { let i = '', s = (t = t.trim()), a = t.charAt(0), @@ -10340,7 +10357,7 @@ var global, factory; } return { match: i, rest: s }; } - function Ie(t, e) { + function Pe(t, e) { let i = ve.forString('math', null, t, e); return ( i @@ -10351,7 +10368,7 @@ var global, factory; i ); } - function Be() { + function Oe() { return new te.MathAtom('', 'first'); } (we.prototype._announce = function(t, e, i) { @@ -10453,7 +10470,8 @@ var global, factory; (this.path = i), 0 === e && 'placeholder' === this.anchor().type && - ((i[i.length - 1].offset = 0), (e = 1)), + ((i[i.length - 1].offset = this.anchorOffset() - 1), + (e = 1)), (t = { path: i, extent: e || 0 }), (this.path = s); } @@ -10595,7 +10613,7 @@ var global, factory; { (0 !== e[t.relation].length && 'first' === e[t.relation][0].type) || - e[t.relation].unshift(Be()); + e[t.relation].unshift(Oe()); const i = Math.min( t.offset, e[t.relation].length - 1 @@ -10650,7 +10668,7 @@ var global, factory; : ((t = this.parent()[this.relation()] || []), 'string' == typeof t && (t = [])), (0 !== t.length && 'first' === t[0].type) || - t.unshift(Be()), + t.unshift(Oe()), t ); }), @@ -11997,14 +12015,14 @@ var global, factory; (we.prototype.moveToSuperscript_ = function() { if ((this.collapseForward(), !this.anchor().superscript)) if (this.anchor().subscript) - this.anchor().superscript = [Be()]; + this.anchor().superscript = [Oe()]; else { const t = this.sibling(1); t && t.superscript ? (this.path[this.path.length - 1].offset += 1) : t && t.subscript ? ((this.path[this.path.length - 1].offset += 1), - (this.anchor().superscript = [Be()])) + (this.anchor().superscript = [Oe()])) : ('limits' !== this.anchor().limits && (this.siblings().splice( this.anchorOffset() + 1, @@ -12019,7 +12037,7 @@ var global, factory; (this.path[ this.path.length - 1 ].offset += 1)), - (this.anchor().superscript = [Be()])); + (this.anchor().superscript = [Oe()])); } this.path.push({ relation: 'superscript', offset: 0 }), this.selectGroup_(); @@ -12027,14 +12045,14 @@ var global, factory; (we.prototype.moveToSubscript_ = function() { if ((this.collapseForward(), !this.anchor().subscript)) if (this.anchor().superscript) - this.anchor().subscript = [Be()]; + this.anchor().subscript = [Oe()]; else { const t = this.sibling(1); t && t.subscript ? (this.path[this.path.length - 1].offset += 1) : t && t.superscript ? ((this.path[this.path.length - 1].offset += 1), - (this.anchor().subscript = [Be()])) + (this.anchor().subscript = [Oe()])) : ('limits' !== this.anchor().limits && (this.siblings().splice( this.anchorOffset() + 1, @@ -12049,7 +12067,7 @@ var global, factory; (this.path[ this.path.length - 1 ].offset += 1)), - (this.anchor().subscript = [Be()])); + (this.anchor().subscript = [Oe()])); } this.path.push({ relation: 'subscript', offset: 0 }), this.selectGroup_(); @@ -12062,7 +12080,7 @@ var global, factory; numer: 'denom', }[this.relation()]; t || this.moveToSuperscript_(), - this.parent()[t] || (this.parent()[t] = [Be()]), + this.parent()[t] || (this.parent()[t] = [Oe()]), this.setSelection(0, 'end', t); }), (we.prototype.moveBeforeParent_ = function() { @@ -12188,8 +12206,8 @@ var global, factory; }), this.contentDidChange(); }); - var Oe = { EditableMathlist: we, parseMathString: Ee }; - const Re = { + var Be = { EditableMathlist: we, parseMathString: Ee }; + const $e = { '#': '#', '|': '|', '[': 'BracketLeft', @@ -12200,7 +12218,7 @@ var global, factory; '/': 'Slash', '\\': 'Backslash', }, - Ke = { + Re = { Space: 'Spacebar', ' ': 'Spacebar', Escape: 'Esc', @@ -12210,7 +12228,7 @@ var global, factory; ArrowDown: 'Down', Delete: 'Del', }, - Ne = { + Ke = { q: 'KeyQ', w: 'KeyW', e: 'KeyE', @@ -12265,16 +12283,16 @@ var global, factory; '?': 'Shift-Slash', ' ': 'Spacebar', }; - function $e(t) { + function Ne(t) { let e, i = !0; 'Unidentified' === t.key && t.target && - (e = Ne[t.target.value] || t.target.value), + (e = Ke[t.target.value] || t.target.value), e || - (Re[t.key] ? ((e = Re[t.key]), (i = !1)) : (e = Ke[t.key]), - e || (e = Ne[t.key.toLowerCase()])), - !e && t.code && (e = Ke[t.code] || t.code); + ($e[t.key] ? ((e = $e[t.key]), (i = !1)) : (e = Re[t.key]), + e || (e = Ke[t.key.toLowerCase()])), + !e && t.code && (e = Re[t.code] || t.code); const s = []; return ( t.ctrlKey && s.push('Ctrl'), @@ -12334,7 +12352,7 @@ var global, factory; !o && 'CapsLock' !== i.code && !/(Control|Meta|Alt|Shift)(Right|Left)/.test(i.code) - ) || ((s = i), (a = null), e.keystroke($e(i), i)) + ) || ((s = i), (a = null), e.keystroke(Ne(i), i)) ); }, !0 @@ -12342,7 +12360,7 @@ var global, factory; c.addEventListener( 'keypress', function(t) { - o || (s && a && e.keystroke($e(s), s), (a = t), r(l)); + o || (s && a && e.keystroke(Ne(s), s), (a = t), r(l)); }, !0 ), @@ -12423,7 +12441,7 @@ var global, factory; var He = { delegateKeyboardEvents: We, select: We.select, - keyboardEventToString: $e, + keyboardEventToString: Ne, eventToChar: function(t) { if (!t) return ''; let e; @@ -12844,14 +12862,14 @@ var global, factory; }, i ), - a = $.makeSpan(s, 'ML__base'), - o = $.makeSpan('', 'ML__strut'); + a = N.makeSpan(s, 'ML__base'), + o = N.makeSpan('', 'ML__strut'); o.setStyle('height', a.height, 'em'); - const r = $.makeSpan('', 'ML__strut--bottom'); + const r = N.makeSpan('', 'ML__strut--bottom'); return ( r.setStyle('height', a.height + a.depth, 'em'), r.setStyle('vertical-align', -a.depth, 'em'), - $.makeSpan([o, r, a], 'ML__mathlive').toMarkup() + N.makeSpan([o, r, a], 'ML__mathlive').toMarkup() ); })(Ve[s] || e, t), o = je(s), @@ -14092,13 +14110,13 @@ var global, factory; let si = {}; const ai = { math: - "\n
      \n
        \n
      • x
        • \n
      • n
        • \n
      • \n \n
      • \n
      • e
        • \n
      • i
        • \n
      • \n
      \n
        \n
      • <
        • \n
      • >
        • \n
      • \n \n
      • \n
      • x ²
        • \n
      • x ⬚
        • \n
      • \n
      \n
        \n
      • (
        • \n
      • )
        • \n
      • \n \n
      • \n
        • \n
      • \n
      • ⌫
      \n
    \n
      \n
      • \n
      • \n
    • \n \n
    • \n \n
    \n
    \n ", + "\n
    \n
      \n
    • x
      • \n
    • n
      • \n
    • \n \n
    • \n
    • e
      • \n
    • i
      • \n
    • \n
    \n
      \n
    • <
      • \n
    • >
      • \n
    • \n \n
    • \n
    • x ²
      • \n
    • x ⬚
      • \n
    • \n
    \n
      \n
    • (
      • \n
    • )
      • \n
    • \n \n
    • \n
      • \n
    • \n
    • ⌫
    \n \n
      \n
      • \n
      • \n
    • \n \n
    • \n \n
    \n
    \n ", 'lower-roman': "\n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n
    • ∞≠
      • \n
    • ,
      • \n
    •  
      • \n \n
    \n
    ", 'upper-roman': "\n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n
    • ∞≠
      • \n
    • ;
      • \n
    •  
      • \n \n
    \n
    ", symbols: - "\n
    \n
      \n \n
    • {
      • \n
    • }
      • \n
    • \n
    • ∈
      • \n
    • ∉
      • \n
    • ℜ
      • \n
    • ℑ
      • \n
    • ┌o┐
      • \n
    • ∇
      • \n
    • ∞
      • \n\n
    \n
      \n \n
    • [
      • \n
    • ]
      • \n
    • \n
    • ⊂
      • \n
    • ⊃
      • \n
    • !
      • \n
    • o′
      • \n
    • └o┘
      • \n
    • ∂
      • \n
    • ∅
      • \n\n
    \n
      \n \n
    • ⟨
      • \n
    • ⟩
      • \n
    • \n
    • ⊆
      • \n
    • ⊇
      • \n
    • \n
    • \n
    • \n
    • ∗
      • \n\n
    • ⌫
      • \n
    \n
      \n \n
    • abc
      • \n
    • ⋅
      • \n
    • :
      • \n
    • ∘
      • \n
    • ≈
      • \n
    • ≠
      • \n
    • ±
      • \n \n
    \n
    ", + "\n
    \n
      \n \n
    • {
      • \n
    • }
      • \n
    • \n
    • ∈
      • \n
    • ∉
      • \n
    • ℜ
      • \n
    • ℑ
      • \n
    • ┌o┐
      • \n
    • ∇
      • \n
    • ∞
      • \n\n
    \n
      \n \n
    • [
      • \n
    • ]
      • \n
    • \n
    • ⊂
      • \n
    • ⊃
      • \n
    • !
      • \n
    • o′
      • \n
    • └o┘
      • \n
    • ∂
      • \n
    • ∅
      • \n\n
    \n
      \n \n
    • ⟨
      • \n
    • ⟩
      • \n
    • \n
    • ⊆
      • \n
    • ⊇
      • \n
    • \n
    • \n
    • \n
    • ∗
      • \n\n
    • ⌫
      • \n
    \n
      \n \n
    • abc
      • \n
    • ⋅
      • \n
    • :
      • \n
    • ∘
      • \n
    • ≈
      • \n
    • ≠
      • \n
    • ±
      • \n \n
    \n
    ", 'lower-greek': "\n
    \n
    • φ
      • \n
    • ς
      • \n
    • ϵ
      • \n
    • ρ
      • \n
    • τ
      • \n
    • υ
      • \n
    • θ
      • \n
    • ι
      • \n
    • ο
      • \n
    • π
      • \n
    \n
    • α
      • \n
    • σ
      • \n
    • δ
      • \n
    • ϕ
      • \n
    • γ
      • \n
    • η
      • \n
    • ξ
      • \n
    • κ
      • \n
    • λ
      • \n
    \n
    • ⇧
      • \n
    • ζ
      • \n
    • χ
      • \n
    • ψ
      • \n
    • ω
      • \n
    • β
      • \n
    • ν
      • \n
    • μ
      • \n
    • ⌫
      • \n
    \n
      \n
    •  
      • \n
    • ,
      • \n
    • ε
      • \n
    • ϑ
      • \n
    • ϰ
      • \n
    • ϖ
      • \n
    • ϱ
      • \n \n
    \n
    ", 'upper-greek': @@ -14110,9 +14128,9 @@ var global, factory; 'symbols-command': "\n
    \n
    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 0
    \n
    • !
    • @
    • #
    • $
    • %
    • ^
    • &
    • *
    • +
    • =
    \n
      \n
    • \\
      • \n
    • |
      • \n
    • /
      • \n
    • `
      • \n
    • ;
      • \n
    • :
      • \n
    • ?
      • \n
    • '
      • \n
    • \"
      • \n
    • ⌫
      • \n
    \n
      \n
    • abc
      • \n
    • <
      • \n
    • >
      • \n
    • ~
      • \n
    • ,
      • \n
    • .
      • \n
    •  
      • \n \n
    \n
    ", functions: - "\n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • ⌫
    \n
    • \n
    • (
      • \n
    • )
      • \n
    • \n
    • \n
    •  
      • \n \n
    \n
    ", + "\n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • ⌫
    \n
    • \n
    • (
      • \n
    • )
      • \n
    • \n
    • \n
    •  
      • \n \n
    \n
    ", style: - "\n
    \n
      \n
      • \n
      • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
      \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
      \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
      \n
    • \n
    • \n
    • \n\n
    • \n
    • \n
    • \n
    • \n
    \n
    ", + "\n
    \n
      \n
      • \n
      • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
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    ", }; function oi(t, e, i) { t = t.replace(/(^|[^\\])#@/g, '$1#?'); @@ -14121,14 +14139,14 @@ var global, factory; { mathstyle: 'displaystyle', macros: i.config.macros }, s ), - o = $.makeSpan(a, 'ML__base'), - r = $.makeSpan('', 'ML__strut'); + o = N.makeSpan(a, 'ML__base'), + r = N.makeSpan('', 'ML__strut'); r.setStyle('height', o.height, 'em'); - const l = $.makeSpan('', 'ML__strut--bottom'); + const l = N.makeSpan('', 'ML__strut--bottom'); return ( l.setStyle('height', o.height + o.depth, 'em'), l.setStyle('vertical-align', -o.depth, 'em'), - $.makeSpan([r, l, o], 'ML__mathlive').toMarkup() + N.makeSpan([r, l, o], 'ML__mathlive').toMarkup() ); } function ni(t, e, i) { @@ -15762,16 +15780,16 @@ var global, factory; } else e = t; return e; } - function Pi(t) { + function Ii(t) { if (!t) return null; - const e = qi(Ni(t)), + const e = qi(Ki(t)), i = [Di(e), zi(e)]; return i[0] <= 0 ? null : i; } - function Ii(t) { - return null !== Pi(t); + function Pi(t) { + return null !== Ii(t); } - const Bi = { + const Oi = { '\\lfloor\\rfloor': 'floor', '\\lceil\\rceil': 'ceil', '\\vert\\vert': 'abs', @@ -15786,7 +15804,7 @@ var global, factory; '\\lmoustache\\rmoustache': 'moustache', '\\lbrace\\rbrace': 'brace', }, - Oi = { + Bi = { '!': 'factorial', '\\dag': 'dagger', '\\dagger': 'dagger', @@ -15801,7 +15819,7 @@ var global, factory; '\\_': '_', '\\degree': 'degree', }, - Ri = { + $i = { '+': 'add', '-': 'add', '*': 'multiply', @@ -15817,12 +15835,12 @@ var global, factory; shortEquivalent: 'equivalent', equivalent: 'equivalent', }, - Ki = { ',': 'list', ';': 'list2' }; - function Ni(t) { + Ri = { ',': 'list', ';': 'list2' }; + function Ki(t) { if ('string' == typeof t) return t; if (Array.isArray(t)) { let e = ''; - for (const i of t) e += Ni(i); + for (const i of t) e += Ki(i); return e; } if ( @@ -15834,12 +15852,12 @@ var global, factory; if ('string' == typeof t.body) return t.body; if (Array.isArray(t.body)) { let e = ''; - for (const i of t.body) e += Ni(i); + for (const i of t.body) e += Ki(i); return e; } return ''; } - function $i(t) { + function Ni(t) { return 'string' == typeof t.sym ? (function(t) { let e = Ti[t]; @@ -15897,7 +15915,7 @@ var global, factory; function Zi(t, e, i) { let s = !1; const a = t.atoms[t.index]; - return a && a.type === e && (s = void 0 === i || Ni(a) === i), s; + return a && a.type === e && (s = void 0 === i || Ki(a) === i), s; } function Xi(t, ...e) { const i = { fn: t }; @@ -15951,17 +15969,17 @@ var global, factory; (t.ast.sub = rs(i.subscript, e)), void 0 !== i.superscript && ('msubsup' === i.type - ? /['\u2032]|\\prime/.test(Ni(i.superscript)) + ? /['\u2032]|\\prime/.test(Ki(i.superscript)) ? ((t.index += 1), (i = t.atoms[t.index + 1]), i && 'msubsup' === i.type && - /['\u2032]|\\prime/.test(Ni(i.superscript)) + /['\u2032]|\\prime/.test(Ki(i.superscript)) ? (t.ast.sup = { sym: '″' }) : ((t.ast.sup = { sym: '′' }), (t.index -= 1))) : /['\u2033]|\\doubleprime/.test( - Ni(i.superscript) + Ki(i.superscript) ) ? (t.ast.sup = { sym: '″' }) : t.ast && (t.ast.sup = rs(i.superscript, e)) @@ -15994,8 +16012,8 @@ var global, factory; return ( s && s.latex && - Oi[s.latex.trim()] && - ((t.ast = Xi(Oi[s.latex.trim()], i)), + Bi[s.latex.trim()] && + ((t.ast = Xi(Bi[s.latex.trim()], i)), (t = es((t = ts(t, e)), e))), t ); @@ -16010,20 +16028,20 @@ var global, factory; t.minPrec = 0; let o = t.atoms[t.index]; if (e) { - if ('mopen' === o.type && Ni(o) === e) + if ('mopen' === o.type && Ki(o) === e) (t.index += 1), (o = (t = os(t, s)).atoms[t.index]), o && 'mclose' === o.type && - Ni(o) === i && + Ki(o) === i && (Qi(t) && (t.ast = { group: t.ast }), (t = es((t = ts(t, s)), s))); - else if ('textord' === o.type && Ni(o) === e) + else if ('textord' === o.type && Ki(o) === e) (t.index += 1), (o = (t = os(t, s)).atoms[t.index]), o && 'textord' === o.type && - Ni(o) === i && + Ki(o) === i && ((t.index += 1), (t = es((t = ts(t, s)), s))); else if ( '\\lVert' === e && @@ -16089,7 +16107,7 @@ var global, factory; if ((t = is(t, e, i))) return ( s && (t.index += 1), - (t.ast = { fn: Bi[e + i] || e + i, arg: [t.ast] }), + (t.ast = { fn: Oi[e + i] || e + i, arg: [t.ast] }), (t.minPrec = a), t ); @@ -16100,7 +16118,7 @@ var global, factory; return ( (t.index = t.index || 0), !(t.atoms.length <= 1 || t.index >= t.atoms.length - 1) && - e === Ni(t.atoms[t.index]) + Ni(t.atoms[t.index + 1]) + e === Ki(t.atoms[t.index]) + Ki(t.atoms[t.index + 1]) ); } function as(t) { @@ -16151,7 +16169,7 @@ var global, factory; (t += e.atoms[e.index].body), (e.index += 1); return (e.ast = { text: t }), e; } - const a = qi(Ni(s)); + const a = qi(Ki(s)); if (as(e)) e.ast = Xi(e.ast, t(e, i).ast); else { if ('root' === s.type) @@ -16222,7 +16240,7 @@ var global, factory; } else if ('genfrac' === s.type || 'surd' === s.type) (e.ast = s.toAST(i)), (e = es((e = ts(e, i)), i)); else if ('mord' === s.type || 'mbin' === s.type) { - if (Ei(a) && !Ii(s)) { + if (Ei(a) && !Pi(s)) { e.ast = { fn: a }; const s = (e = ts(e, i)).ast, o = t(e, i).ast; @@ -16238,7 +16256,7 @@ var global, factory; e = es(e, i); } else if ('textord' === s.type) { if ( - !Ii(s) && + !Pi(s) && !At.RIGHT_DELIM[ s.latex ? s.latex.trim() : s.body ] @@ -16261,14 +16279,14 @@ var global, factory; s.latex ) || Ei(a)) && - !Ii(s) + !Pi(s) ) if ( ((e.ast = { fn: /^\\(mathop|operatorname|operatorname\*)/.test( s.latex ) - ? Ni(s.body) + ? Ki(s.body) : a, }), ji((e = ts(e, i)).ast)) @@ -16319,7 +16337,7 @@ var global, factory; const t = is(e, '(', ')', i) || is(e, null, null, i); t ? (e = t) - : Ii(s) || + : Pi(s) || ('placeholder' === s.type ? (e.ast = Ji(0)) : ((e.ast = { text: '?' }), @@ -16350,7 +16368,7 @@ var global, factory; ('mord' === s.type || 'textord' === s.type || 'mop' === s.type) && - Ii(s) + Pi(s) ) return e; const a = e.ast; @@ -16381,11 +16399,11 @@ var global, factory; n = as(t); let r, l; if ( - ((s = !o || 'text' === o.mode || (!n && !Ii(o))), - s || (([r, l] = n ? [Di(n), zi(n)] : Pi(o)), (s = r < a)), + ((s = !o || 'text' === o.mode || (!n && !Pi(o))), + s || (([r, l] = n ? [Di(n), zi(n)] : Ii(o)), (s = r < a)), !s) ) { - const a = n || qi(Ni(o)); + const a = n || qi(Ki(o)); if ( ((t.minPrec = 'left' === l ? r + 1 : r), (t.index += 1), @@ -16421,7 +16439,7 @@ var global, factory; } else s = !0; else { const s = os(t, e).ast; - let o = Ki[a]; + let o = Ri[a]; o && i && i.fn !== o && (i = Xi(o, i)), '-' === a ? i && i.arg && 'add' === i.fn @@ -16450,7 +16468,7 @@ var global, factory; )).toString(), }, }) - : ((o = Ri[a]), + : ((o = $i[a]), 'add' === o && i && 'subtract' === i.fn ? (i = Xi( 'add', @@ -16811,7 +16829,7 @@ var global, factory; : void 0), e ? (r = String.fromCodePoint(parseInt(e[1], 16))) - : ((r = qi(Ni(this))), + : ((r = qi(Ki(this))), r.length > 0 && '\\' === r.charAt(0) && 'string' == typeof this.body && @@ -16932,7 +16950,7 @@ var global, factory; Gi(e) && (a += '_{' + t(e.sub, s) + '}'); } else if (e.group) (a = t(e.group, s)), - Hi(e.group) || $i(e.group) + Hi(e.group) || Ni(e.group) ? 0 !== Ui(e.group) && (a = ls(e.fence || '(),', a)) : (a = ls(e.fence || '(),', a)), ji(e) && (a += '^{' + t(e.sup, s) + '}'), @@ -16976,7 +16994,7 @@ var global, factory; ) (a = t(Fi(e, 0), s)), Hi(Fi(e, 0)) || - $i(Fi(e, 0)) || + Ni(Fi(e, 0)) || (a = ls(e.fence || '(),', a)), (a += '^{' + t(Fi(e, 1), s) + '}'); else if ('equal' === e.fn && e.arg && e.arg.length > 2) @@ -17062,7 +17080,7 @@ var global, factory; } } else if ('string' == typeof e.sym) { - a = $i(e); + a = Ni(e); let i = a.match(/^&#x([0-9a-f]+);$/i); i && i[1] ? (a = String.fromCodePoint(parseInt(i[1], 16))) @@ -17830,7 +17848,7 @@ var global, factory; (o.onAnnounce = this.config.onAnnounce), (o.macros = this.config.macros), (o.removeExtraneousParentheses = this.config.removeExtraneousParentheses), - (this.mathlist = new Oe.EditableMathlist(o, this)), + (this.mathlist = new Be.EditableMathlist(o, this)), (this.undoManager = new (class { constructor(t) { (this.mathlist = t), @@ -18359,14 +18377,15 @@ var global, factory; this.config.onAnnounce(this, t, e, i); } _onFocus() { - this.blurred && - ((this.blurred = !1), - this.textarea.focus && this.textarea.focus(), - 'onfocus' === this.config.virtualKeyboardMode && - this.showVirtualKeyboard_(), - Je.updatePopoverPosition(this), - this.config.onFocus && this.config.onFocus(this), - this._requestUpdate()); + this.config.readOnly || + (this.blurred && + ((this.blurred = !1), + this.textarea.focus && this.textarea.focus(), + 'onfocus' === this.config.virtualKeyboardMode && + this.showVirtualKeyboard_(), + Je.updatePopoverPosition(this), + this.config.onFocus && this.config.onFocus(this), + this._requestUpdate())); } _onBlur() { this.blurred || @@ -18714,7 +18733,7 @@ var global, factory; for (; !i && a < e.length; ) { let t; if (this.keystrokeBufferStates[a]) { - const e = new Oe.EditableMathlist(); + const e = new Be.EditableMathlist(); (e.root = te.makeRoot( 'math', he.parseTokens( @@ -18775,6 +18794,7 @@ var global, factory; !i && !a) ) return !0; + if (this.config.readOnly && 'insert' === a[0]) return !0; this.mathlist.decorateCommandStringAroundInsertionPoint(!1); const r = this.mathlist.parent(); if ( @@ -18852,6 +18872,7 @@ var global, factory; ); } _onTypedText(t, e) { + if (this.config.readOnly) return void this._announce('plonk'); if ( ((e = e || {}).focus && this.$focus(), e.feedback && @@ -18980,14 +19001,29 @@ var global, factory; { relation: 'body', offset: 0 }, ]), this.mathlist.forEach(t => { - (t.caret = ''), (t.isSelected = !1); + (t.caret = ''), + (t.isSelected = !1), + (t.containsCaret = !1); }); const e = this.$hasFocus(); - this.mathlist.isCollapsed() - ? (this.mathlist.anchor().caret = e ? this.mode : '') - : this.mathlist.forEachSelected(t => { - t.isSelected = !0; - }); + if ( + (this.mathlist.isCollapsed() + ? (this.mathlist.anchor().caret = + e && !this.config.readOnly ? this.mode : '') + : this.mathlist.forEachSelected(t => { + t.isSelected = !0; + }), + e && !this.config.readOnly) + ) { + let t = this.mathlist.ancestor(1), + e = 1, + i = !1; + for (; t && !i; ) + ('surd' !== t.type && 'leftright' !== t.type) || + ((t.containsCaret = !0), (i = !0)), + (e += 1), + (t = this.mathlist.ancestor(e)); + } const i = te.decompose( { mathstyle: 'displaystyle', @@ -18999,24 +19035,27 @@ var global, factory; }, this.mathlist.root ), - s = $.makeSpan(i, 'ML__base'); + s = N.makeSpan(i, 'ML__base'); s.attributes = { translate: 'no', 'aria-hidden': 'true' }; - const a = $.makeSpan('', 'ML__strut'); + const a = N.makeSpan('', 'ML__strut'); a.setStyle('height', s.height, 'em'); const o = [a]; if (0 !== s.depth) { - const t = $.makeSpan('', 'ML__strut--bottom'); + const t = N.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 = $.makeSpan(o, 'ML__mathlive'); + const n = N.makeSpan(o, 'ML__mathlive'); (this.field.innerHTML = n.toMarkup( 0, this.config.horizontalSpacingScale )), - this.field.classList.toggle('ML__focused', e), + this.field.classList.toggle( + 'ML__focused', + e && !this.config.readOnly + ), (this.accessibleNode.innerHTML = "" + te.toMathML(this.mathlist.root, this.config) + @@ -20155,14 +20194,15 @@ var global, factory; if ( (this.config || (this.config = { + namespace: '', + overrideDefaultInlineShortcuts: !1, + readOnly: !1, + removeExtraneousParentheses: !0, + scriptDepth: [1 / 0, 1 / 0], smartFence: !0, smartSuperscript: !0, - scriptDepth: [1 / 0, 1 / 0], - removeExtraneousParentheses: !0, - overrideDefaultInlineShortcuts: !1, virtualKeyboard: '', virtualKeyboardLayout: 'qwerty', - namespace: '', }), (this.config = { ...this.config, ...t }), void 0 !== this.config.scriptDepth && @@ -20242,7 +20282,9 @@ var global, factory; ((this.plonkSound = new Audio()), (this.plonkSound.preload = 'none'), (this.plonkSound.src = this.config.plonkSound), - (this.plonkSound.volume = 0.5)); + (this.plonkSound.volume = 0.5)), + this.readOnly && this._onBlur(), + this._requestUpdate(); } speak_(t, e) { e = e || { withHighlighting: !1 }; @@ -20665,34 +20707,34 @@ var global, factory; o = he.parseTokens(a, 'math', null, s); if ('mathlist' === i) return o; let r = te.decompose({ mathstyle: e }, o); - if (((r = $.coalesce(r)), 'span' === i)) return r; - const l = $.makeSpan(r, 'ML__base'), - c = $.makeSpan('', 'ML__strut'); + if (((r = N.coalesce(r)), 'span' === i)) return r; + const l = N.makeSpan(r, 'ML__base'), + c = N.makeSpan('', 'ML__strut'); c.setStyle('height', l.height, 'em'); const h = [c]; if (0 !== l.depth) { - const t = $.makeSpan('', 'ML__strut--bottom'); + const t = N.makeSpan('', 'ML__strut--bottom'); t.setStyle('height', l.height + l.depth, 'em'), t.setStyle('vertical-align', -l.depth, 'em'), h.push(t); } - return h.push(l), $.makeSpan(h, 'ML__mathlive').toMarkup(); + return h.push(l), N.makeSpan(h, 'ML__mathlive').toMarkup(); } - function Ps(t, e) { + function Is(t, e) { if (!te.toMathML) return ''; ((e = e || {}).macros = e.macros || {}), Object.assign(e.macros, At.MACROS); const i = he.parseTokens(n(t), 'math', null, e.macros); return te.toMathML(i, e); } - function Is(t, e) { + function Ps(t, e) { if (!te.toSpeakableText) return ''; ((e = e || {}).macros = e.macros || {}), Object.assign(e.macros, At.MACROS); const i = he.parseTokens(n(t), 'math', null, e.macros); return te.toSpeakableText(i, e); } - function Bs(t, e) { + function Os(t, e) { if ( (!e && window && @@ -20729,7 +20771,7 @@ var global, factory; window && window.speechSynthesis.speak(e); } } - function Os(t, e, i) { + function Bs(t, e, i) { if (!window) return; if ( (!i && window.mathlive && (i = window.mathlive.config), @@ -20892,21 +20934,21 @@ var global, factory; } }); } - function Rs(t) { + function $s(t) { let e = t; if ('string' == typeof t && ((e = document.getElementById(t)), !e)) throw Error(`The element with ID "${t}" could not be found.`); return e; } - function Ks(t, e) { + function Rs(t, e) { Es && (((e = e || {}).renderToMarkup = e.renderToMarkup || qs), - (e.renderToMathML = e.renderToMathML || Ps), - (e.renderToSpeakableText = e.renderToSpeakableText || Is), + (e.renderToMathML = e.renderToMathML || Is), + (e.renderToSpeakableText = e.renderToSpeakableText || Ps), (e.macros = e.macros || At.MACROS), - Es.renderMathInElement(Rs(t), e)); + Es.renderMathInElement($s(t), e)); } - function Ns(t) { + function Ks(t) { if (t.namespace) { if (!/^[a-z]+[-]?$/.test(t.namespace)) throw Error( @@ -20917,8 +20959,8 @@ var global, factory; } return { latexToMarkup: qs, - latexToMathML: Ps, - latexToSpeakableText: Is, + latexToMathML: Is, + latexToSpeakableText: Ps, latexToAST: function(t, e) { if (!te.toAST) return {}; ((e = e || {}).macros = e.macros || {}), @@ -20932,32 +20974,32 @@ var global, factory; makeMathField: function(t, e) { if (!Cs) throw Error('The MathField module is not loaded.'); return ( - ((e = e || {}).handleSpeak = e.handleSpeak || Bs), - (e.handleReadAloud = e.handleReadAloud || Os), - new Cs.MathField(Rs(t), e) + ((e = e || {}).handleSpeak = e.handleSpeak || Os), + (e.handleReadAloud = e.handleReadAloud || Bs), + new Cs.MathField($s(t), e) ); }, renderMathInDocument: function(t) { - Ks(document.body, t); + Rs(document.body, t); }, - renderMathInElement: Ks, + renderMathInElement: Rs, revertToOriginalContent: function(t, e) { - (t = (t = Rs(t)).children[1]) instanceof Cs.MathField + (t = (t = $s(t)).children[1]) instanceof Cs.MathField ? t.revertToOriginalContent() - : (Ns((e = e || {})), + : (Ks((e = e || {})), (t.innerHTML = t.getAttribute( 'data-' + (e.namespace || '') + 'original-content' ))); }, getOriginalContent: function(t, e) { - return (t = (t = Rs(t)).children[1]) instanceof Cs.MathField + return (t = (t = $s(t)).children[1]) instanceof Cs.MathField ? t.originalContent - : (Ns((e = e || {})), + : (Ks((e = e || {})), t.getAttribute( 'data-' + (e.namespace || '') + 'original-content' )); }, - readAloud: Os, + readAloud: Bs, readAloudStatus: function() { return window ? 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=_e(e.array);i>=0;i--)t(Ce(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},we.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const 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},we.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=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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=_e(i.array);let s=e-1;for(;!t&&s0)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)}},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=Se(this);i=this.extent+t;const a=e+i;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)},we.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=Se(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),n<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&&n0&&(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)}},we.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)},we.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=Se(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"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 this.suppressChangeNotifications=i,!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},we.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},we.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},we.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];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=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},we.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=At.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;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),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},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new te.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},we.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))},we.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++},we.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.row0){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 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>ks(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,ys(this.textarea,"cut",this),ys(this.textarea,"copy",this),ys(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,xs(this.popover),xs(this.keystrokeCaption),xs(this.virtualKeyboard),xs(document.getElementById("mathlive-alternate-keys-panel")),ys(this.element,"pointerdown",this),ys(this.element,"touchstart:active mousedown",this),ys(this.element,"focus",this),ys(this.element,"blur",this),ys(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let i;return Array.from(e.children).forEach((function(e){i=i||t(e)})),i}(this.field);if(t){const e=t.getBoundingClientRect();return{x:e.right,y:e.bottom,height:e.height}}return null}_getSelectionBounds(){const t=this.field.querySelectorAll(".ML__selected");if(t&&t.length>0){const e={top:1/0,bottom:-1/0,left:1/0,right:-1/0};t.forEach(t=>{const i=t.getBoundingClientRect();i.lefte.right&&(e.right=i.right),i.bottom>e.bottom&&(e.bottom=i.bottom),i.top=t.left&&i<=t.right}return o&&e.children&&Array.from(e.children).forEach((function(e){const o=t(e,i,s);o.element&&o.distance<=a.distance&&(a=o)})),a}(this.field,t,e).element,o=a?a.getAttribute("data-atom-id"):null;if(o){const 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=me.pathFromString(e[0]).path,0===i.bias){const e=a.getBoundingClientRect();tt.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()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){if(this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,i=this._pathFromPoint(d,p,{bias:0}),i){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),i=me.clone(this.mathlist.path),i[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||Ss>2?(n(t),3!==t.detail&&3!==Ss||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(gs(e.field,"pointermove",h),gs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(gs(window,"blur",n),t.touches?(gs(t.target,"touchmove",h),gs(t.target,"touchend",n)):(gs(window,"mousemove",h),gs(window,"mouseup",n))),2!==t.detail&&2!==Ss||(a=!0,this.mathlist.selectGroup_()))}}else ws=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 As(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+=As(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof 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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=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(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),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(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),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){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))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()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(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(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=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=ve.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=At.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;iks(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1});const e=this.$hasFocus();this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0});const i=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=$.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=$.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=$.makeSpan("","ML__strut--bottom");t.setStyle("height",s.height+s.depth,"em"),t.setStyle("vertical-align",-s.depth,"em"),o.push(t)}o.push(s);const n=$.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=hi[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&hi[a]?hi[a]:a&&di[a]?di[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=di[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=te.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const i=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=he.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.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),Je.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(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)),gs(t,"mousedown 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d=Vt(t,[s,o,c,i]);if(!this.index)return this.bind(t,Nt([r,d],"sqrt"));const p=t.clone({mathstyle:M.SCRIPTSCRIPT}),m=Kt(Qt(p,this.index),e.adjustTo(M.SCRIPTSCRIPT)),u=Math.max(r.height,d.height),f=Math.max(r.depth,d.depth),g=Vt(t,[m],"shift",-.6*(u-f));return this.bind(t,Nt([Kt(g,"root"),r,d],"sqrt"))}decomposeAccent(t){const e=t.mathstyle;let s=Qt(t.cramp(),this.body);(this.superscript||this.subscript)&&(s=this.attachSupsub(t,Nt(s),"mord"));let i=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(i=N.skew(s));const a=Math.min(N.height(s),e.metrics.xHeight),o=N.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Kt(Kt(o),"accent-body"+n);return r=Vt(t,[s,-a,r]),r.children[1].setLeft(2*i),Nt(r,"accent")}decomposeLine(t){const e=t.mathstyle,s=Qt(t.cramp(),this.body),i=h.defaultRuleThickness/e.sizeMultiplier,a=Kt(null,t.mathstyle.adjustTo(M.TEXT)+" "+this.position+"-line");let o;if(a.height=i,a.maxFontSize=1,"overline"===this.position)o=Vt(t,[s,3*i,a,i]);else{const e=Kt(s);o=Vt(t,[i,a,3*i,e],"top",N.height(e))}return Nt(o,this.position)}decomposeOverunder(t){const e=Qt(t,this.body),s=t.clone({mathstyle:"scriptstyle"}),i=this.overscript?Kt(Qt(s,this.overscript),t.mathstyle.adjustTo(s.mathstyle)):null,a=this.underscript?Kt(Qt(s,this.underscript),t.mathstyle.adjustTo(s.mathstyle)):null;return Yt(t,e,0,0,i,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Kt(Qt(t,this.body),"inner");return Nt([e,Kt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,s=Nt("","rule");let i=this.shift&&!isNaN(this.shift)?this.shift:0;i/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return s.setStyle("border-right-width",a,"em"),s.setStyle("border-top-width",o,"em"),s.setStyle("margin-top",-(o-i),"em"),s.setStyle("border-color",t.color),s.width=a,s.height=o+i,s.depth=-i,s}decomposeOp(t){const e=t.mathstyle;let s,i=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(i=!0);let a=0,o=0;if(this.symbol){const n=i?"Size2-Regular":"Size1-Regular";s=N.makeSymbol(n,this.body,"op-symbol "+(i?"large-op":"small-op")),s.type="mop",a=(s.height-s.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=s.italic,this.bind(t,s)}else Array.isArray(this.body)?(s=N.makeOp(Qt(t,this.body)),this.bind(t,s)):s=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const i=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===i||"auto"===i&&e.size===M.DISPLAY.size?this.attachLimits(t,s,a,o):this.attachSupsub(t,s,"mop")}return this.symbol&&s.setTop(a),s}decomposeBox(t){const e=Nt(Qt(t,this.body)),s=Kt();s.setStyle("position","absolute");const i="number"==typeof this.padding?this.padding:h.fboxsep;s.setStyle("height",e.height+e.depth+2*i,"em"),0!==i?s.setStyle("width","calc(100% + 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i="";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",(N.height(e)+N.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&&(i+='0?s.setWidth(this.width):s.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";s=Kt("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?s=this.decomposeBox(t):"enclose"===this.type?s=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(s=this.makeSpan(t,this.body),s.classes="",this.error&&(s.classes+=" ML__error"),this.suggestion&&(s.classes+=" ML__suggestion")):"placeholder"===this.type?s=this.makeSpan(t,"⬚"):"first"===this.type&&(s=this.makeSpan(t,"​"));if(!s)return s;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(s)?s[s.length-1].caret=this.caret:s.caret=this.caret),this.containsCaret&&(Array.isArray(s)?(s[0].classes=(s[0].classes||"")+" ML__contains-caret",s[s.length-1].classes=(s[s.length-1].classes||"")+" ML__contains-caret"):s.classes=(s.classes||"")+" ML__contains-caret"),!this.limits&&(this.superscript||this.subscript))if(Array.isArray(s)){const e=s[s.length-1];s[s.length-1]=this.attachSupsub(t,e,e.type)}else s=[this.attachSupsub(t,s,s.type)];return Array.isArray(s)?s:[s]}attachSupsub(t,e,s){if(!this.superscript&&!this.subscript)return e;const i=t.mathstyle;let a=null,o=null;if(this.superscript){const e=Qt(t.sup(),this.superscript);a=Kt(e,i.adjustTo(i.sup()))}if(this.subscript){const e=Qt(t.sub(),this.subscript);o=Kt(e,i.adjustTo(i.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=N.height(e)-i.metrics.supDrop,l=N.depth(e)+i.metrics.subDrop),n=i===M.DISPLAY?i.metrics.sup1:i.cramped?i.metrics.sup3:i.metrics.sup2;const c=M.TEXT.sizeMultiplier*i.sizeMultiplier,d=.5/h.ptPerEm/c;let p=null;if(o&&a){r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),l=Math.max(l,i.metrics.sub2);const s=h.defaultRuleThickness;if(r-N.depth(a)-(N.height(o)-l)<4*s){l=4*s-(r-a.depth)+N.height(o);const t=.8*i.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Vt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,i.metrics.sub1,N.height(o)-.8*i.metrics.xHeight),p=Vt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),p=Vt(t,[a],"shift",-r),p.children[0].setRight(d));const m=Kt(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(s,[e,m])}attachLimits(t,e,s,i){const a=this.superscript?Kt(Qt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Kt(Qt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Yt(t,e,s,i,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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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 s="textord"===this.type?"mord":this.type,i=N.makeSpanOfType(s,e),a=this.getStyle();i.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+o):t.parentSize!==t.size&&(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+t.size),i.maxFontSize=Math.max(i.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(i.classes+=" ML__text"),t.mathstyle.isTight()&&(i.isTight=!0),"math"!==this.mode&&(i.italic=0),i.setRight(i.italic),"number"==typeof t.opacity&&i.setStyle("opacity",t.opacity),this.bind(t,i),this.caret&&(this.superscript||this.subscript||(i.caret=this.caret,t.mathstyle.isTight()&&(i.isTight=!0))),i}}function Xt(t){const e=Kt("​","arraycolsep");return e.setWidth(t,"em"),e}function Jt(t,e,s,i){const a=[];for(const o of e){const e=Kt(Qt(t,i));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-s)}return Vt(t,a,"individualShift")}function Yt(t,e,s,i,a,o,n){if(!a&&!o)return e;e=Kt(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+s;c=Vt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-i),c.children[2].setLeft(i)}else if(o&&!a){const a=N.height(e)-s;c=Vt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-i)}else if(!o&&a){const o=N.depth(e)+s;c=Vt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(i)}return N.makeSpanOfType(n,c,"op-limits")}function Qt(t,e){function s(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function i(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Gt[t.size]/Gt[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var te={MathAtom:Zt,decompose:Qt,makeRoot:function(t,e){const s=new Zt(t=t||"math","root",e||[]);return 0!==s.body.length&&"first"===s.body[0].type||s.body.unshift(new Zt("","first")),s},GREEK_REGEX:Ut};const ee={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},se={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 ie=function(t){const e=t.toLowerCase().split("!");let s,i,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=0&&(o=(1-l)*o+l*s,n=(1-l)*n+l*i,r=(1-l)*r+l*a,l=-1),t+1=0&&(o=l*o+(1-l)*s,n=l*n+(1-l)*i,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)},ae=function(t){let e=t.toUpperCase();for(const t in se)if(se[t]===e){e=t;break}for(const t in ee)if(ee[t]===e){e=t;break}return e},oe=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ne=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const re=te.MathAtom;class le{constructor(t,e,s){this.tokens=t,this.index=0,this.args=e,this.macros=s,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=t.length}const a=t.toUpperCase()===i.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 ie(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let s=10,i=/[0-9]/;this.parseLiteral("'")?(s=8,i=/[0-7]/,t=!0):(this.parseLiteral('"')||this.parseLiteral("x"))&&(s=16,i=/[0-9A-F]/,t=!0);let a="";for(;this.hasLiteralPattern(i);)a+=this.get().value;if(!t&&(this.parseLiteral(".")||this.parseLiteral(",")))for(a+=".";this.hasLiteralPattern(i);)a+=this.get().value;const o=t?parseInt(a,s):parseFloat(a);return e?-o:o}scanDimen(){const t=this.scanNumber(!1);let e;return this.skipWhitespace(),e=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"),e}scanSkip(){const t=this.scanDimen();return 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t=s.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==s.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let s=e.length-1;s>=0;s--)"command"===e[s].type?e.splice(s,1):t(e[s]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let s=_e(e.array);s>=0;s--)t(Ce(e.array,s))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let s=this.startOffset();if("text"===t[s].mode)for(;s>=1&&"text"===t[s].mode;)e.unshift(t[s]),s--;else for(;s>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[s].type);)e.unshift(t[s]),s--;return e},we.prototype.setSelection=function(t,e,s){t=t||0,e=e||0;const i=this.path[this.path.length-1].relation;s||(s=i);const a=this.parent();if(!a&&"body"!==s)return!1;const o=s.startsWith("cell");if(!o&&!a[s]||o&&!a.array)return!1;const n=s!==i;this.path[this.path.length-1].relation=s;const r=this.siblings().length;this.path[this.path.length-1].relation=i;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=s,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},we.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let s=e[this.relation()];const i=this.parent();for(;s&&!i[s];)s=e[s];if(s)return void this.setSelection(0,0,s);if(this.parent().array){const t=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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 s=this.anchor();if(!s.captureSelection){let t;if(s.array){t="";const e=_e(s.array);let i=e-1;for(;!t&&i0)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)}},we.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const s=this.relation();if("denom"===s)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=Me(this.parent().array,s);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const s=this.relation();if("numer"===s)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=Me(this.parent().array,s);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,s=0;const i=Se(this);s=this.extent+t;const a=e+s;if(a<0&&0!==s){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",i);e=this.path[this.path.length-1].offset,s=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",i);this.isCollapsed()&&(e-=1),s-=1}this.setSelection(e,s),this._announce("move",i)},we.prototype.skip=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=Se(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(s&&(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),n<0&&!s)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 s="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(s){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",i)}},we.prototype.jump=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,i.length-1));const o=t<0?0:i.length-1;s?this.extend(o-a):this.move(o-a)},we.prototype.jumpToMathFieldBoundary=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const i=Se(this),a=[{relation:"body",offset:this.path[0].offset}];let o;s?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(i,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"])',s=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let i=s.indexOf(document.activeElement)+t;i<0&&(i=s.length-1),i>=s.length&&(i=0),s[i].focus()}return this.suppressChangeNotifications=s,!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",i),this.selectionDidChange(),this.suppressChangeNotifications=s,!0},we.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e=i.mode),s+=1,i=this.ancestor(s);return e},we.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e={color:i.color,backgroundColor:i.backgroundColor,fontFamily:i.fontFamily,fontShape:i.fontShape,fontSeries:i.fontSeries,fontSize:i.fontSize}),s+=1,i=this.ancestor(s);return e},we.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 s=0,i=0,a=0;for(let o=0;t[e].body[o];o++)"genfrac"===t[e].body[o].type&&(s++,i=o),"first"!==t[e].body[o].type&&a++;0===a&&1===s&&(t[e]=t[e].body[i])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const s=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const i=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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,e.macros,!1));!function t(e,s){e&&s&&(Array.isArray(e)?e.forEach(e=>t(e,s)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(s),t(e.body,s),t(e.numer,s),t(e.denom,s),t(e.index,s),t(e.overscript,s),t(e.underscript,s),t(e.subscript,s),t(e.superscript,s))))}(o,e.style);const h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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=i,"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=s},we.prototype._insertSmartFence=function(t,e){const s=this.parent();if("leftright"===s.type&&"|"!==s.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 i=At.RIGHT_DELIM[t];if(i&&("leftright"!==s.type||"|"!==s.leftDelim)){let s="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;s=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",s+=a?"?":i;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(s,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),a){if(s&&"leftright"===s.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),s.rightDelim=t,this.move(1),this.contentDidChange(),!0;const i=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==i[a].type||"?"!==i[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),i[a].rightDelim=t,i[a].body=i[a].body.concat(i.slice(a+1,this.endOffset()+1)),i.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(s&&"leftright"===s.type&&"?"===s.rightDelim){this.contentWillChange(),s.rightDelim=t;const e=i.slice(this.endOffset()+1);return i.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()===i.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let s=e.start;for(;s=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const s=[],i=t.substr(e);for(const t of i){const e=new te.MathAtom("command","command",t);e.suggestion=!0,s.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(s))},we.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))},we.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++},we.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.row0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(s+=1)}i.row+=1}return s}(t,e.col)){!function(t,e){let 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof 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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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 s=t?t.path:[],i=this.mathlist.path,a=i[i.length-1];let o="";for(;s.length>i.length;)o+="out of "+e(t.parent(),s[s.length-1])+"; ",s.pop();if(!this.mathlist.isCollapsed())return Ai(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+=Ai(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,s){"function"==typeof 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e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const s=this.element.getBoundingClientRect();e.style.left=s.left+"px",e.style.top=s.top-64+"px",e.innerHTML=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,s=!1,i=[],a=!1;if(Array.isArray(t)?(e=t[0],i=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](...i),/^(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=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,s=!0}else"function"==typeof this[e]&&(a=this[e](...i),s=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),s}performWithFeedback_(t){return this.$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=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"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=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let s=0,i=!1;for(this.mathlist.contentWillChange();!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a),i||(a.applyStyle({mode:"text"}),a.latex=a.body),s-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let s=0,i=!1;for(;!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),i||a.applyStyle({mode:"math",type:"mord"}),s-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}}getTextBeforeAnchor_(){let t="",e=0,s=!1;for(;!s;){const i=this.mathlist.sibling(e);s=!(i&&("text"===i.mode&&!i.type||"math"===i.mode&&/mord|textord|mpunct/.test(i.type))),s||(t=i.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(s));const i=this.getTextBeforeAnchor_()+s;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(s))return!0;if(/[\^_]/.test(s))return/(^|\s)[a-zA-Z][^_]$/.test(i)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[s];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(i))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(s))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(i))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(i)){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]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(i))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(s))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(i)&&!/(dxd|abc|xyz|uvw)$/.test(i))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(i))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(i)&&!/(αβγ)$/.test(i))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(s))return!0}return!1}_onKeystroke(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let s,i,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!s&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const i=this.mode;s?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==i&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(s||a||(a=ve.selectorForKeystroke(this.mode,t)),!s&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!s){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.$perform(a)||s)&&s){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(s)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const s=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[i],{...this.config,suppressChangeNotifications:!0}),this.mode=s}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(s,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),s.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),s=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(s),s))return}let s="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=i(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),i=At.suggest(e+t);a=i.length>1,0===i.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),i[0].match!==e+t&&this.mathlist.insertSuggestion(i[0].match,-i[0].match.length+e.length+1),s=i[0].match)}else if("math"===this.mode){const s={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(s){if("moveToSuperscript"===s){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===s&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$perform(s)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,s,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let s=0;ski(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,s=!1;for(;t&&!s;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,s=!0),e+=1,t=this.mathlist.ancestor(e)}const s=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),i=N.makeSpan(s,"ML__base");i.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",i.height,"em");const o=[a];if(0!==i.depth){const t=N.makeSpan("","ML__strut--bottom");t.setStyle("height",i.height+i.depth,"em"),t.setStyle("vertical-align",-i.depth,"em"),o.push(t)}o.push(i);const n=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(t,e){let s="";if("latex"===(e=e||"latex")||"latex-expanded"===e)s=t.toLatex("latex-expanded"===e);else if("mathML"===e)s=t.toMathML(this.config);else if("spoken"===e)s=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",s=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const i=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),s=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=i,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);s=JSON.stringify(e)}else"ASCIIMath"===e&&(s=function t(e,s){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 i=0;for(s='"';e[i]&&"text"===e[i].mode;)s+=e[i].body,i++;s+='"'+t(e.slice(i))}else{let i=0;for(;e[i]&&"math"===e[i].mode;)s+=t(e[i]),i++;s+=t(e.slice(i))}return s.trim()}if("text"===e.mode)return'"'+e.body+'"';let i="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":i=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(i+="(",i+=t(e.numer),i+=")/(",i+=t(e.denom),i+=")"):(i+="("+t(e.numer)+"),",i+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?i+="root("+t(e.index)+")("+t(e.body)+")":i+="sqrt("+t(e.body)+")";break;case"leftright":i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",i+=t(e.body),i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":i=hs[a]||a||("string"==typeof e.body?e.body:""),"\\"===i[0]&&(i+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?i=String.fromCharCode(parseInt("0x"+o[1])):i.length>0&&"\\"===i.charAt(0)&&(i="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":i=a&&hs[a]?hs[a]:a&&ds[a]?ds[a]:e.body;break;case"mopen":case"mclose":i+=e.body;break;case"mpunct":i=ds[a]||a;break;case"mop":"​"!==e.body&&(i="",i+="\\operatorname"===a?t(e.body):e.body||a,i+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":i=" "}if(e.subscript){i+="_";const s=t(e.subscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}if(e.superscript){i+="^";const s=t(e.superscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}return i}(t,this.config));return s}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const s=te.makeRoot("math",e);return this.formatMathlist(s,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!0:s.subscript&&(i=!1),e+=1,s=this.mathlist.ancestor(e);return i?t:0}_subscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!1:s.subscript&&(i=!0),e+=1,s=this.mathlist.ancestor(e);return i?t:0}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const s=this._getSelectionBounds();s&&(t={x:s.right+e.left-this.field.scrollLeft,y:s.top+e.top-this.field.scrollTop})}if(t){const s=t.x-window.scrollX;se.right&&this.field.scroll({top:0,left:s-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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 s=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=s)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1}switchMode_(t,e,s){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,s&&this.$insert(s,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const s=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(s)}else{const s=he.parseTokens(n(e),t,null,this.config.macros);s?this.mathlist.spliceCommandStringAroundInsertionPoint(s):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const s=this.suggestionIndex%e.length,i=t.length-e[s].match.length;0!==i&&this.mathlist.insertSuggestion(e[s].match,i),Je.showPopoverWithLatex(this,e[s].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const s=this;let i,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)),gi(t,"mousedown touchstart:passive",(function(e){if("mousedown"!==e.type||1===e.buttons){e.stopPropagation(),e.preventDefault(),t.classList.add("pressed"),i=Date.now(),"touchstart"===e.type&&(o=e.changedTouches[0].identifier);const n=t.getAttribute("data-"+s.config.namespace+"command-pressed");n&&s.$perform(JSON.parse(n));const l=t.getAttribute("data-"+s.config.namespace+"command-pressAndHoldStart");l&&(a=t,r&&clearTimeout(r),r=window.setTimeout((function(){t.classList.contains("pressed")&&s.$perform(JSON.parse(l))}),300))}})),gi(t,"mouseleave touchcancel",(function(){t.classList.remove("pressed")})),gi(t,"touchmove:passive",(function(t){t.preventDefault();for(let e=0;e=7?s.style.width="286px":4===e.length||2===e.length?s.style.width="146px":1===e.length?s.style.width="86px":s.style.width="146px",s.style.height="auto";let i="";for(const t of e)i+="";i="
      "+i+"
    ",s.innerHTML=i,cs.makeKeycap(this,s.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-s.clientHeight<0&&(s.style.width="auto",e.length<=6?s.style.height="56px":e.length<=12?s.style.height="108px":s.style.height="205px");const t=(a.top-s.clientHeight+5).toString()+"px",i=Math.max(0,Math.min(window.innerWidth-s.offsetWidth,(a.left+a.right-s.offsetWidth)/2))+"px";s.style.transform="translate("+i+","+t+")",s.classList.add("is-visible")}return!1}hideAlternateKeys_(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",xi(t)),!1}performAlternateKeys_(t){return this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(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 s=!1;for(let i=0;i=1){s=[];for(let t=1;t<=i;t++)s.push(e[t])}break}case"right":{const e=t.mathlist.siblings(),i=t.mathlist.endOffset()+1;if(i<=e.length-1){s=[];for(let t=i;t<=e.length-1;t++)s.push(e[t])}break}case"start":case"end":break;case"group":s=t.mathlist.siblings();break;case"parent":{const e=t.mathlist.parent();e&&"root"!==e.type&&(s=t.mathlist.parent());break}}return s}(this,t);if(null===s)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 i={...this.config};(e.withHighlighting||"amazon"===i.speechEngine)&&(i.textToSpeechMarkup=window.sre&&"sre"===i.textToSpeechRules?"ssml_step":"ssml",e.withHighlighting&&(i.generateID=!0));const a=te.toSpeakableText(s,i);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,i),!1}}let wi,Si=0;function Ai(t,e,s){const i=Object.assign({},t.config);return i.textToSpeechMarkup="",i.textToSpeechRulesOptions=i.textToSpeechRulesOptions||{},i.textToSpeechRulesOptions.markup="none",e+te.toSpeakableText(s,i)}function Mi(t,e,s,i){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>{})),t._resetKeystrokeBuffer()):"delete"===e?a=Ai(t,"deleted: ",i):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(s):"replacement"===e?a=Ai(t,"",t.mathlist.sibling(0)):"line"===e?(a=Ai(t,"",t.mathlist.root),t.accessibleNode.innerHTML=''+te.toMathML(t.mathlist.root,t.config)+"",t.textarea.setAttribute("aria-label","after: "+a)):a=i?Ai(t,e+" ",i):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}vi.prototype.undo_=vi.prototype.undo,vi.prototype.redo_=vi.prototype.redo,vi.prototype.scrollIntoView_=vi.prototype.scrollIntoView,vi.prototype.scrollToStart_=vi.prototype.scrollToStart,vi.prototype.scrollToEnd_=vi.prototype.scrollToEnd,vi.prototype.insert_=vi.prototype.$insert;var Ci={isValidMathfield:ki,MathField:vi};function _i(t,e,s){let i=s,a=0;const o=t.length;for(;i0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(r=n.indexOf(e,c),-1===r){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(r=_i(s,n,c+e.length),-1===r){h=!0;break}a.push({type:"math",data:n.slice(c+e.length,r),rawData:n.slice(c,r+s.length),mathstyle:i}),c=r+s.length}l=!l}c"+e.renderToMathML(t,e)+""}catch(e){s.textContent=t}return s.className="sr-only",s}(t,s)),/\bspeakable-text\b/i.test(s.renderAccessibleContent)&&s.renderToSpeakableText){const i=document.createElement("span");i.innerHTML=s.renderToSpeakableText(t,s),i.className="sr-only",e.appendChild(i)}return e.appendChild(a),e}return a}function Di(t,e){let s=null;if(e.TeX.processEnvironments&&/^\s*\\begin/.test(t))s=document.createDocumentFragment(),s.appendChild(Fi(t,void 0,e,!0));else{const i=Li(t,e.TeX.delimiters);if(1===i.length&&"text"===i[0].type)return null;s=document.createDocumentFragment();for(let t=0;t{})}}))}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Bi(t,e,s){if(!window)return;if(!s&&window.mathlive&&(s=window.mathlive.config),"amazon"!==(s=s||{}).speechEngine)return void(s.handleSpeak&&s.handleSpeak(e));if(!window.AWS)return;const i=new window.AWS.Polly({apiVersion:"2016-06-10"}),a={OutputFormat:"json",VoiceId:s.speechEngineVoice||"Joanna",Text:e,TextType:"ssml",SpeechMarkTypes:["ssml"]};window.mathlive=window.mathlive||{},window.mathlive.readAloudElement=t;const o=s.onReadAloudStatus||window.mathlive.onReadAloudStatus;i.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=[],i.synthesizeSpeech(a,(function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),s=new Blob([t.buffer],{type:"audio/mpeg"}),i=URL.createObjectURL(s);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 s of window.mathlive.readAloudMarks)s.time0&&Array.from(e.children).forEach(e=>{t(e,s)})):(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=i,o&&o(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}}))}}))}function $i(t){let e=t;if("string"==typeof t&&(e=document.getElementById(t),!e))throw Error(`The element with ID "${t}" could not be found.`);return e}function Ri(t,e){Ei&&((e=e||{}).renderToMarkup=e.renderToMarkup||qi,e.renderToMathML=e.renderToMathML||Ii,e.renderToSpeakableText=e.renderToSpeakableText||Pi,e.macros=e.macros||At.MACROS,Ei.renderMathInElement($i(t),e))}function Ki(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}const Ni={latexToMarkup:qi,latexToMathML:Ii,latexToSpeakableText:Pi,latexToAST:function(t,e){if(!te.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,At.MACROS);const s=he.parseTokens(n(t),"math",null,e.macros);return te.toAST(s,e)},astToLatex:function(t,e){return pi(t,e)},makeMathField:function(t,e){if(!Ci)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Oi,e.handleReadAloud=e.handleReadAloud||Bi,new Ci.MathField($i(t),e)},renderMathInDocument:function(t){Ri(document.body,t)},renderMathInElement:Ri,revertToOriginalContent:function(t,e){(t=(t=$i(t)).children[1])instanceof Ci.MathField?t.revertToOriginalContent():(Ki(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=$i(t)).children[1])instanceof Ci.MathField?t.originalContent:(Ki(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Bi,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 s=0;if(window.mathlive.readAloudFinalToken=null,t){window.mathlive.readAloudMarks=window.mathlive.readAloudMarks||[];for(const e of window.mathlive.readAloudMarks)e.value===t&&(s=e.time/1e3);let i=window.mathlive.readAloudTokens.indexOf(t);i>=0&&(i+=e,i { a.caret = ''; a.isSelected = false; + a.containsCaret = false; }); const hasFocus = this.$hasFocus(); if (this.mathlist.isCollapsed()) { - this.mathlist.anchor().caret = hasFocus ? this.mode : ''; + this.mathlist.anchor().caret = + hasFocus && !this.config.readOnly ? this.mode : ''; } else { this.mathlist.forEachSelected(a => { a.isSelected = true; }); } + + if (hasFocus && !this.config.readOnly) { + let ancestor = this.mathlist.ancestor(1); + let i = 1; + let done = false; + while (ancestor && !done) { + if (ancestor.type === 'surd' || ancestor.type === 'leftright') { + ancestor.containsCaret = true; + done = true; + } + i += 1; + ancestor = this.mathlist.ancestor(i); + } + } // // 4. Create spans corresponding to the updated mathlist // @@ -2226,7 +2251,10 @@ class MathField { 0, this.config.horizontalSpacingScale ); - this.field.classList.toggle('ML__focused', hasFocus); + this.field.classList.toggle( + 'ML__focused', + hasFocus && !this.config.readOnly + ); // Probably want to generate content on the fly depending on what to speak this.accessibleNode.innerHTML = "" + @@ -3722,14 +3750,15 @@ class MathField { $setConfig(conf) { if (!this.config) { this.config = { + namespace: '', + overrideDefaultInlineShortcuts: false, + readOnly: false, + removeExtraneousParentheses: true, + scriptDepth: [Infinity, Infinity], smartFence: true, smartSuperscript: true, - scriptDepth: [Infinity, Infinity], - removeExtraneousParentheses: true, - overrideDefaultInlineShortcuts: false, virtualKeyboard: '', virtualKeyboardLayout: 'qwerty', - namespace: '', }; } this.config = { ...this.config, ...conf }; @@ -3824,6 +3853,10 @@ class MathField { this.plonkSound.src = this.config.plonkSound; this.plonkSound.volume = AUDIO_FEEDBACK_VOLUME; } + if (this.readOnly) { + this._onBlur(); + } + this._requestUpdate(); } /** * diff --git a/dist/src/editor/editor-virtualKeyboard.js b/dist/src/editor/editor-virtualKeyboard.js index bc20c84d9..e84b2ec10 100644 --- a/dist/src/editor/editor-virtualKeyboard.js +++ b/dist/src/editor/editor-virtualKeyboard.js @@ -474,8 +474,8 @@ const LAYERS = {
  • -
  • e
    • -
  • i
    • +
  • e
    • +
  • i
    • @@ -484,9 +484,9 @@ const LAYERS = {
    • -
    • x ²
      • -
    • x ⬚
      • -
    • +
    • x ²
      • +
    • x ⬚
      • +
    • (
      • @@ -576,7 +576,7 @@ const LAYERS = {
    • ⊂
    • ⊃
    • !
      • -
    • o′
      • +
    • o′
    • └o┘
    • ∂
    • ∅
      • @@ -589,9 +589,9 @@ const LAYERS = {
    • ⊆
    • ⊇
      • -
    • -
    • -
    • +
    • +
    • +
    • ∗
    • -
    • -
    • -
    • -
    • -
    • +
    • +
    • +
    • +
    • +
    • -
    • -
    • -
    • -
    • -
    • -
    • +
    • +
    • +
    • +
    • +
    • +
    • -
    • -
    • -
    • -
    • -
    • -
    • +
    • +
    • +
    • +
    • +
    • +
    • ⌫
    • (
    • )
      • -
    • -
    • +
    • +
    •  
    @@ -827,7 +827,7 @@ const LAYERS = {
  • -
  • +
    • diff --git a/docs/global.html b/docs/global.html index 00583842d..239abde5c 100644 --- a/docs/global.html +++ b/docs/global.html @@ -1637,6 +1637,31 @@
      Properties
      + + + +
    + + + +
    + + readOnly? + + + + + : +boolean + + + + + + + + + diff --git a/docs/tutorial-CONFIG.html b/docs/tutorial-CONFIG.html index 9d14a932f..72dd99117 100644 --- a/docs/tutorial-CONFIG.html +++ b/docs/tutorial-CONFIG.html @@ -288,6 +288,9 @@

    Configuration options

    which will be played to provide feedback when a command has no effect, for example when pressing the spacebar at the root level.

    +

    config.readOnly='false':boolean

    +

    If true, the mathfield cannot be edited.

    +

    config.textToSpeechRules='mathlive':string

    Specify which set of text to speech rules to use.

    diff --git a/src/editor/editor-mathfield.js b/src/editor/editor-mathfield.js index 6a81ea8ec..9b1d39552 100644 --- a/src/editor/editor-mathfield.js +++ b/src/editor/editor-mathfield.js @@ -77,6 +77,7 @@ import '../addons/outputSpokenText.js'; @property {boolean} keypressVibration? @property {string} keypressSound? @property {string} plonkSound? + @property {boolean} readOnly? @property {"mathlive" | "sre"} textToSpeechRules? @property {"ssml" | "mac"} textToSpeechMarkup? @property {object} textToSpeechRulesOptions? @@ -1059,6 +1060,7 @@ class MathField { } } _onFocus() { + if (this.config.readOnly) return; if (this.blurred) { this.blurred = false; // The textarea may be a span (on mobile, for example), so check that @@ -1839,6 +1841,9 @@ class MathField { if (!shortcut && !selector) { return true; } + if (this.config.readOnly && selector[0] === 'insert') { + 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) @@ -1961,6 +1966,10 @@ class MathField { * @private */ _onTypedText(text, options) { + if (this.config.readOnly) { + this._announce('plonk'); + return; + } options = options || {}; // Focus, then provide audio and haptic feedback if (options.focus) { @@ -2172,14 +2181,15 @@ class MathField { }); const hasFocus = this.$hasFocus(); if (this.mathlist.isCollapsed()) { - this.mathlist.anchor().caret = hasFocus ? this.mode : ''; + this.mathlist.anchor().caret = + hasFocus && !this.config.readOnly ? this.mode : ''; } else { this.mathlist.forEachSelected(a => { a.isSelected = true; }); } - if (hasFocus) { + if (hasFocus && !this.config.readOnly) { let ancestor = this.mathlist.ancestor(1); let i = 1; let done = false; @@ -2241,7 +2251,10 @@ class MathField { 0, this.config.horizontalSpacingScale ); - this.field.classList.toggle('ML__focused', hasFocus); + this.field.classList.toggle( + 'ML__focused', + hasFocus && !this.config.readOnly + ); // Probably want to generate content on the fly depending on what to speak this.accessibleNode.innerHTML = "" + @@ -3737,14 +3750,15 @@ class MathField { $setConfig(conf) { if (!this.config) { this.config = { + namespace: '', + overrideDefaultInlineShortcuts: false, + readOnly: false, + removeExtraneousParentheses: true, + scriptDepth: [Infinity, Infinity], smartFence: true, smartSuperscript: true, - scriptDepth: [Infinity, Infinity], - removeExtraneousParentheses: true, - overrideDefaultInlineShortcuts: false, virtualKeyboard: '', virtualKeyboardLayout: 'qwerty', - namespace: '', }; } this.config = { ...this.config, ...conf }; @@ -3839,6 +3853,10 @@ class MathField { this.plonkSound.src = this.config.plonkSound; this.plonkSound.volume = AUDIO_FEEDBACK_VOLUME; } + if (this.readOnly) { + this._onBlur(); + } + this._requestUpdate(); } /** * diff --git a/tutorials/CONFIG.md b/tutorials/CONFIG.md index a8b6c6537..2e985ef9e 100644 --- a/tutorials/CONFIG.md +++ b/tutorials/CONFIG.md @@ -340,6 +340,12 @@ for example when pressing the spacebar at the root level. --- +**`config.readOnly='false'`**:`boolean` + +If true, the mathfield cannot be edited. + +--- + **`config.textToSpeechRules='mathlive'`**:`string` Specify which From 4098f2027d09fef84b652169a2ded5438b8f706b Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Wed, 5 Feb 2020 17:10:58 -0800 Subject: [PATCH 12/28] bug: fix #243: incorrect alt-keys for '-' key on virtual keyboard --- src/editor/editor-virtualKeyboard.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/editor/editor-virtualKeyboard.js b/src/editor/editor-virtualKeyboard.js index e84b2ec10..823bb4fd8 100644 --- a/src/editor/editor-virtualKeyboard.js +++ b/src/editor/editor-virtualKeyboard.js @@ -1201,7 +1201,7 @@ function expandLayerMarkup(mf, layer) { row += "
  • −
    • "; + "' data-alt-keys='-' data-key='-' data-alt-keys='-'>−"; } else if (/tt/.test(cls)) { row += "
  • Date: Wed, 5 Feb 2020 17:36:26 -0800 Subject: [PATCH 14/28] dist --- CHANGELOG.md | 7 +++++ dist/mathlive.js | 4 ++- dist/mathlive.mjs | 2 +- dist/src/addons/outputLatex.js | 5 ++++ dist/src/editor/editor-virtualKeyboard.js | 2 +- docs/tutorial-CONFIG.html | 26 +++++++++++++++++++ tutorials/CONFIG.md | 31 +++++++++++++++++++++++ 7 files changed, 74 insertions(+), 3 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 63d615f27..47fad612e 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -2,6 +2,7 @@ ### Bug Fixes +- Fix #364: Some expressions containing placeholders, when inserted, would not have the placeholder selected. For example, when using the "differentialD" key in the virtual keyboard. - Fix #349: - 'latex-expanded' format no longer returns `\mleft` and `\mright`. This format is intended for inter-exchange with other TeX-compatible renderers @@ -11,10 +12,16 @@ - When pasting content that begins/ends with `$` or `$$`, assume LaTeX format - Fix keyboard shortcuts, e.g. "alt+(" or "alt+v" - Fix #354: The argument of `\operatorname` is of type 'math', not 'text'. This means that using the '\text' command inside the argument is valid and that spaces should be ignored by default (but the `~` character can be used to insert a space in that context). +- Fix #282: Some keys from the virtual keyboards ('e', 'i') produce an incorrect input. +- Fix #227: An operator (`\sin`) following some text is incorrectly considered + to be part of the text. ### Features / Improvements - Documented `suppressChangeNotifications` options for `$insert()` +- Document `config.smartMode` (#312) +- The 'surd' (root) and 'leftright' (fences) elements now change color when the caret is inside their body. This helps distinguish the case where the caret position may be ambiguous, for example when it is either after the last element of the body of a 'surd' or the first element after the 'surd'. +- #339: Read-only mode. Set the mode to read-only with `mf.$setConfig({readOnly: true})`. When this mode is activated, the formula can be selected (so it can be copied), but it cannot be modified by the user. Progammatic modification is still possible. ## 0.33 (December 16, 2019) diff --git a/dist/mathlive.js b/dist/mathlive.js index bbedb8866..0ea1409da 100644 --- a/dist/mathlive.js +++ b/dist/mathlive.js @@ -12960,6 +12960,8 @@ var global, factory; ) s++; + else if ('mode' === e) + for (; t[s] && t[s][e] === i; ) s++; else for ( ; @@ -14388,7 +14390,7 @@ var global, factory; ? (a += "
  • −
    • ") + "' data-alt-keys='-' data-key='-' data-alt-keys='-'>−") : /tt/.test(i) ? (a += "
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i="";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",(N.height(e)+N.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&&(i+='0?s.setWidth(this.width):s.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";s=Kt("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?s=this.decomposeBox(t):"enclose"===this.type?s=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(s=this.makeSpan(t,this.body),s.classes="",this.error&&(s.classes+=" ML__error"),this.suggestion&&(s.classes+=" ML__suggestion")):"placeholder"===this.type?s=this.makeSpan(t,"⬚"):"first"===this.type&&(s=this.makeSpan(t,"​"));if(!s)return s;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(s)?s[s.length-1].caret=this.caret:s.caret=this.caret),this.containsCaret&&(Array.isArray(s)?(s[0].classes=(s[0].classes||"")+" ML__contains-caret",s[s.length-1].classes=(s[s.length-1].classes||"")+" ML__contains-caret"):s.classes=(s.classes||"")+" ML__contains-caret"),!this.limits&&(this.superscript||this.subscript))if(Array.isArray(s)){const e=s[s.length-1];s[s.length-1]=this.attachSupsub(t,e,e.type)}else s=[this.attachSupsub(t,s,s.type)];return Array.isArray(s)?s:[s]}attachSupsub(t,e,s){if(!this.superscript&&!this.subscript)return e;const i=t.mathstyle;let a=null,o=null;if(this.superscript){const e=Qt(t.sup(),this.superscript);a=Kt(e,i.adjustTo(i.sup()))}if(this.subscript){const e=Qt(t.sub(),this.subscript);o=Kt(e,i.adjustTo(i.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=N.height(e)-i.metrics.supDrop,l=N.depth(e)+i.metrics.subDrop),n=i===M.DISPLAY?i.metrics.sup1:i.cramped?i.metrics.sup3:i.metrics.sup2;const c=M.TEXT.sizeMultiplier*i.sizeMultiplier,d=.5/h.ptPerEm/c;let p=null;if(o&&a){r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),l=Math.max(l,i.metrics.sub2);const s=h.defaultRuleThickness;if(r-N.depth(a)-(N.height(o)-l)<4*s){l=4*s-(r-a.depth)+N.height(o);const t=.8*i.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Vt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,i.metrics.sub1,N.height(o)-.8*i.metrics.xHeight),p=Vt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),p=Vt(t,[a],"shift",-r),p.children[0].setRight(d));const m=Kt(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(s,[e,m])}attachLimits(t,e,s,i){const a=this.superscript?Kt(Qt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Kt(Qt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Yt(t,e,s,i,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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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 s="textord"===this.type?"mord":this.type,i=N.makeSpanOfType(s,e),a=this.getStyle();i.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+o):t.parentSize!==t.size&&(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+t.size),i.maxFontSize=Math.max(i.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(i.classes+=" ML__text"),t.mathstyle.isTight()&&(i.isTight=!0),"math"!==this.mode&&(i.italic=0),i.setRight(i.italic),"number"==typeof t.opacity&&i.setStyle("opacity",t.opacity),this.bind(t,i),this.caret&&(this.superscript||this.subscript||(i.caret=this.caret,t.mathstyle.isTight()&&(i.isTight=!0))),i}}function Xt(t){const e=Kt("​","arraycolsep");return e.setWidth(t,"em"),e}function Jt(t,e,s,i){const a=[];for(const o of e){const e=Kt(Qt(t,i));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-s)}return Vt(t,a,"individualShift")}function Yt(t,e,s,i,a,o,n){if(!a&&!o)return e;e=Kt(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+s;c=Vt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-i),c.children[2].setLeft(i)}else if(o&&!a){const a=N.height(e)-s;c=Vt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-i)}else if(!o&&a){const o=N.depth(e)+s;c=Vt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(i)}return N.makeSpanOfType(n,c,"op-limits")}function Qt(t,e){function s(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function i(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Gt[t.size]/Gt[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var te={MathAtom:Zt,decompose:Qt,makeRoot:function(t,e){const s=new Zt(t=t||"math","root",e||[]);return 0!==s.body.length&&"first"===s.body[0].type||s.body.unshift(new Zt("","first")),s},GREEK_REGEX:Ut};const ee={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},se={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 ie=function(t){const e=t.toLowerCase().split("!");let s,i,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=0&&(o=(1-l)*o+l*s,n=(1-l)*n+l*i,r=(1-l)*r+l*a,l=-1),t+1=0&&(o=l*o+(1-l)*s,n=l*n+(1-l)*i,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)},ae=function(t){let e=t.toUpperCase();for(const t in se)if(se[t]===e){e=t;break}for(const t in ee)if(ee[t]===e){e=t;break}return e},oe=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ne=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const re=te.MathAtom;class le{constructor(t,e,s){this.tokens=t,this.index=0,this.args=e,this.macros=s,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=t.length}const a=t.toUpperCase()===i.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 ie(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let s=10,i=/[0-9]/;this.parseLiteral("'")?(s=8,i=/[0-7]/,t=!0):(this.parseLiteral('"')||this.parseLiteral("x"))&&(s=16,i=/[0-9A-F]/,t=!0);let a="";for(;this.hasLiteralPattern(i);)a+=this.get().value;if(!t&&(this.parseLiteral(".")||this.parseLiteral(",")))for(a+=".";this.hasLiteralPattern(i);)a+=this.get().value;const o=t?parseInt(a,s):parseFloat(a);return e?-o:o}scanDimen(){const t=this.scanNumber(!1);let e;return this.skipWhitespace(),e=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"),e}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"),s=new re("math","group");return s.mathstyle=")"===t?"textstyle":"displaystyle",s.body=this.scanImplicitGroup(e=>"command"===e.type&&e.value===t),this.parseCommand(t),this.swapParseMode(e),s.body&&0!==s.body.length?s:null}scanModeShift(){if(!this.hasToken("$")&&!this.hasToken("$$"))return null;const t=this.get().type,e=new re("math","group");e.mathstyle="$"===t?"textstyle":"displaystyle",e.latexOpen="textstyle"===e.mathstyle?"$":"$$",e.latexClose=e.latexOpen;const s=this.swapParseMode("math");return e.body=this.scanImplicitGroup(e=>e.type===t),this.parseToken(t),this.swapParseMode(s),e.body&&0!==e.body.length?e:null}scanEnvironment(){if(!this.parseCommand("begin"))return null;const t=this.scanArg("string"),e=At.getEnvironmentInfo(t),s=[];if(e&&e.params)for(const t of e.params)if(t.optional){const e=this.scanOptionalArg(t.type);s.push(e)}else s.push(this.scanArg(t.type));const i=this.parseMode,a=this.tabularMode,o=this.swapMathList([]);this.tabularMode=e.tabular;const n=[],r=[];let l=[],c=!1;do{if(c=this.end(),!c&&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=i,this.tabularMode=a,!e.tabular&&0===h.length)return null;if(e.tabular&&0===n.length)return null;const d=new re(this.parseMode,"array",h,e.parser?e.parser(t,s,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 s=null,i=null;const a=this.swapMathList([]);for(;!this.end()&&!t(this.peek());)if(this.hasImplicitCommand(["displaystyle","textstyle","scriptstyle","scriptscriptstyle"])){this.parseMode="math";const t=new re("math","mathstyle");t.mathstyle=this.get().value,this.mathList.push(t)}else this.hasInfixCommand()&&!s?(s=this.get(),i=this.swapMathList([])):this.parseAtom();let o;if(s){const t=this.swapMathList(a),e=At.getInfo("\\"+s.value,"math",this.macros);o=e?[new re(this.parseMode,e.type,e.value||s.value,e.parse?e.parse("\\"+s.value,[i,t]):null)]:[new re(this.parseMode,"mop",s.value)]}else o=this.swapMathList(a);return this.style=e,o}scanGroup(){if(!this.parseToken("{"))return null;const t=new re(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 re(this.parseMode,"leftright");t.leftDelim="(",t.inner=!1;const e=this.swapMathList([]);let s=1;for(;!this.end()&&0!==s;)this.hasLiteral("(")&&(s+=1),this.hasLiteral(")")&&(s-=1),0!==s&&this.parseAtom();return 0===s&&this.parseLiteral(")"),t.rightDelim=0===s?")":"?",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 s=At.getInfo(e,"math",this.macros);return s?"mopen"===s.type||"mclose"===s.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"))return null;const t=this.style;let e="right";if(!this.parseCommand("left")){if(!this.parseCommand("mleft"))return null;e="mright"}const s=this.scanDelim();if(!s)return null;const i=this.swapMathList([]);for(;!this.end()&&!this.parseCommand(e);)this.parseAtom();this.style=t;const a=this.scanDelim(),o=new re(this.parseMode,"leftright");return o.leftDelim=s,o.rightDelim=a,o.inner="right"===e,o.body=this.swapMathList(i),o}parseSupSub(){if("math"!==this.parseMode)return!1;let t=!1;for(;this.hasLiteral("^")||this.hasLiteral("_")||this.hasLiteral("'");){let 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e=a[n]?a[n].type:"";if("mopen"===e&&t>0||"mclose"===e&&t<0){let s="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(s){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",i)}},we.prototype.jump=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,i.length-1));const o=t<0?0:i.length-1;s?this.extend(o-a):this.move(o-a)},we.prototype.jumpToMathFieldBoundary=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const i=Se(this),a=[{relation:"body",offset:this.path[0].offset}];let o;s?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(i,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"])',s=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let i=s.indexOf(document.activeElement)+t;i<0&&(i=s.length-1),i>=s.length&&(i=0),s[i].focus()}return this.suppressChangeNotifications=s,!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",i),this.selectionDidChange(),this.suppressChangeNotifications=s,!0},we.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e=i.mode),s+=1,i=this.ancestor(s);return e},we.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e={color:i.color,backgroundColor:i.backgroundColor,fontFamily:i.fontFamily,fontShape:i.fontShape,fontSeries:i.fontSeries,fontSize:i.fontSize}),s+=1,i=this.ancestor(s);return e},we.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 s=0,i=0,a=0;for(let o=0;t[e].body[o];o++)"genfrac"===t[e].body[o].type&&(s++,i=o),"first"!==t[e].body[o].type&&a++;0===a&&1===s&&(t[e]=t[e].body[i])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const s=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const i=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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash 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0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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=i,"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=s},we.prototype._insertSmartFence=function(t,e){const s=this.parent();if("leftright"===s.type&&"|"!==s.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 i=At.RIGHT_DELIM[t];if(i&&("leftright"!==s.type||"|"!==s.leftDelim)){let s="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;s=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",s+=a?"?":i;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(s,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),a){if(s&&"leftright"===s.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),s.rightDelim=t,this.move(1),this.contentDidChange(),!0;const i=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==i[a].type||"?"!==i[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),i[a].rightDelim=t,i[a].body=i[a].body.concat(i.slice(a+1,this.endOffset()+1)),i.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(s&&"leftright"===s.type&&"?"===s.rightDelim){this.contentWillChange(),s.rightDelim=t;const e=i.slice(this.endOffset()+1);return i.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()===i.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let s=e.start;for(;s=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const s=[],i=t.substr(e);for(const t of i){const e=new te.MathAtom("command","command",t);e.suggestion=!0,s.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(s))},we.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))},we.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++},we.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.row0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(s+=1)}i.row+=1}return s}(t,e.col)){!function(t,e){let s=0;for(;s"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!==s.length-1)/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,s.slice(e+1,e+2)),s.splice(e+1,1));else if("numer"===this.relation()){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: numerator")}else this.move(1),this.delete(-1)}else{const t=this.startOffset()+1,e=this.endOffset()+1;this._announce("deleted",null,s.slice(t,e)),s.splice(t,e-t),this.setSelection(t-1)}this.suppressChangeNotifications=e,this.selectionDidChange(),this.contentDidChange()},we.prototype.moveToNextPlaceholder_=function(){this.leap(1)},we.prototype.moveToPreviousPlaceholder_=function(){this.leap(-1)},we.prototype.moveToNextChar_=function(){this.move(1)},we.prototype.moveToPreviousChar_=function(){this.move(-1)},we.prototype.moveUp_=function(){this.up()},we.prototype.moveDown_=function(){this.down()},we.prototype.moveToNextWord_=function(){this.skip(1)},we.prototype.moveToPreviousWord_=function(){this.skip(-1)},we.prototype.moveToGroupStart_=function(){this.setSelection(0)},we.prototype.moveToGroupEnd_=function(){this.setSelection(-1)},we.prototype.moveToMathFieldStart_=function(){this.jumpToMathFieldBoundary(-1)},we.prototype.moveToMathFieldEnd_=function(){this.jumpToMathFieldBoundary(1)},we.prototype.deleteNextChar_=function(){this.delete_(1)},we.prototype.deletePreviousChar_=function(){this.delete_(-1)},we.prototype.deleteNextWord_=function(){this.extendToNextBoundary(),this.delete_()},we.prototype.deletePreviousWord_=function(){this.extendToPreviousBoundary(),this.delete_()},we.prototype.deleteToGroupStart_=function(){this.extendToGroupStart(),this.delete_()},we.prototype.deleteToGroupEnd_=function(){this.extendToMathFieldStart(),this.delete_()},we.prototype.deleteToMathFieldEnd_=function(){this.extendToMathFieldEnd(),this.delete_()},we.prototype.transpose_=function(){},we.prototype.extendToNextChar_=function(){this.extend(1)},we.prototype.extendToPreviousChar_=function(){this.extend(-1)},we.prototype.extendToNextWord_=function(){this.skip(1,{extend:!0})},we.prototype.extendToPreviousWord_=function(){this.skip(-1,{extend:!0})},we.prototype.extendUp_=function(){this.up({extend:!0})},we.prototype.extendDown_=function(){this.down({extend:!0})},we.prototype.extendToNextBoundary_=function(){this.skip(1,{extend:!0})},we.prototype.extendToPreviousBoundary_=function(){this.skip(-1,{extend:!0})},we.prototype.extendToGroupStart_=function(){this.setExtent(-this.anchorOffset())},we.prototype.extendToGroupEnd_=function(){this.setExtent(this.siblings().length-this.anchorOffset())},we.prototype.extendToMathFieldStart_=function(){this.jumpToMathFieldBoundary(-1,{extend:!0})},we.prototype.extendToMathFieldEnd_=function(){this.jumpToMathFieldBoundary(1,{extend:!0})},we.prototype.moveToSuperscript_=function(){if(this.collapseForward(),!this.anchor().superscript)if(this.anchor().subscript)this.anchor().superscript=[Oe()];else{const t=this.sibling(1);t&&t.superscript?this.path[this.path.length-1].offset+=1:t&&t.subscript?(this.path[this.path.length-1].offset+=1,this.anchor().superscript=[Oe()]):("limits"!==this.anchor().limits&&(this.siblings().splice(this.anchorOffset()+1,0,new te.MathAtom(this.parent().anchorMode,"msubsup","​",this.anchorStyle())),this.path[this.path.length-1].offset+=1),this.anchor().superscript=[Oe()])}this.path.push({relation:"superscript",offset:0}),this.selectGroup_()},we.prototype.moveToSubscript_=function(){if(this.collapseForward(),!this.anchor().subscript)if(this.anchor().superscript)this.anchor().subscript=[Oe()];else{const t=this.sibling(1);t&&t.subscript?this.path[this.path.length-1].offset+=1:t&&t.superscript?(this.path[this.path.length-1].offset+=1,this.anchor().subscript=[Oe()]):("limits"!==this.anchor().limits&&(this.siblings().splice(this.anchorOffset()+1,0,new te.MathAtom(this.parent().anchorMode,"msubsup","​",this.anchorStyle())),this.path[this.path.length-1].offset+=1),this.anchor().subscript=[Oe()])}this.path.push({relation:"subscript",offset:0}),this.selectGroup_()},we.prototype.moveToOpposite_=function(){const t={superscript:"subscript",subscript:"superscript",denom:"numer",numer:"denom"}[this.relation()];t||this.moveToSuperscript_(),this.parent()[t]||(this.parent()[t]=[Oe()]),this.setSelection(0,"end",t)},we.prototype.moveBeforeParent_=function(){this.path.length>1?(this.path.pop(),this.setSelection(this.anchorOffset()-1)):this._announce("plonk")},we.prototype.moveAfterParent_=function(){if(this.path.length>1){const t=Se(this);this.path.pop(),this.setExtent(0),this._announce("move",t)}else this._announce("plonk")},we.prototype._addCell=function(t){const e=this.parent();if(e&&"array"===e.type&&Array.isArray(e.array)){const s=this.relation();if(e.array){const i=Me(e.array,s);"after row"===t||"before row"===t?(i.col=0,i.row=i.row+("after row"===t?1:0),e.array.splice(i.row,0,[[]])):(i.col+="after column"===t?1:0,e.array[i.row].splice(i.col,0,[]));const a=Ae(e.array,i);this.path.pop(),this.path.push({relation:"cell"+a.toString(),offset:0}),this.insertFirstAtom()}}},we.prototype.convertParentToArray=function(){const t=this.parent();if("leftright"===t.type){t.type="array";const e={"(":"pmatrix","\\lbrack":"bmatrix","\\lbrace":"cases"}[t.leftDelim]||"matrix",s=At.getEnvironmentInfo(e),i=[[t.body]];s.parser&&Object.assign(t,s.parser(e,[],i)),t.tabularMode=s.tabular,t.parseMode=this.anchorMode(),t.env={...s},t.env.name=e,t.array=i,t.rowGaps=[0],delete t.body,this.path[this.path.length-1].relation="cell0"}},we.prototype.addRowAfter_=function(){this.contentWillChange(),this.convertParentToArray(),this._addCell("after row"),this.contentDidChange()},we.prototype.addRowBefore_=function(){this.contentWillChange(),this.convertParentToArray(),this._addCell("before 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mousedown",this),gi(window,"resize",this);const o={...e};o.onSelectionDidChange=vi.prototype._onSelectionDidChange.bind(this),o.onContentDidChange=vi.prototype._onContentDidChange.bind(this),o.onAnnounce=this.config.onAnnounce,o.macros=this.config.macros,o.removeExtraneousParentheses=this.config.removeExtraneousParentheses,this.mathlist=new Be.EditableMathlist(o,this),this.undoManager=new class{constructor(t){this.mathlist=t,this.maximumDepth=1e3,this.record=!1,this.canCoalesce=!1,this.reset()}reset(){this.stack=[],this.index=-1}startRecording(){this.record=!0}canUndo(){return this.index>0}canRedo(){return this.index!==this.stack.length-1}undo(t){this.canUndo()&&(t&&"function"==typeof t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"undo"),this.restore(this.stack[this.index-1],t),this.index-=1,t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const s=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=s}}(this.mathlist),s.length>0&&this.$latex(s),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(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(()=>ki(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,yi(this.textarea,"cut",this),yi(this.textarea,"copy",this),yi(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,xi(this.popover),xi(this.keystrokeCaption),xi(this.virtualKeyboard),xi(document.getElementById("mathlive-alternate-keys-panel")),yi(this.element,"pointerdown",this),yi(this.element,"touchstart:active mousedown",this),yi(this.element,"focus",this),yi(this.element,"blur",this),yi(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let s;return Array.from(e.children).forEach((function(e){s=s||t(e)})),s}(this.field);if(t){const e=t.getBoundingClientRect();return{x:e.right,y:e.bottom,height:e.height}}return null}_getSelectionBounds(){const t=this.field.querySelectorAll(".ML__selected");if(t&&t.length>0){const e={top:1/0,bottom:-1/0,left:1/0,right:-1/0};t.forEach(t=>{const s=t.getBoundingClientRect();s.lefte.right&&(e.right=s.right),s.bottom>e.bottom&&(e.bottom=s.bottom),s.top=t.left&&s<=t.right}return o&&e.children&&Array.from(e.children).forEach((function(e){const o=t(e,s,i);o.element&&o.distance<=a.distance&&(a=o)})),a}(this.field,t,e).element,o=a?a.getAttribute("data-atom-id"):null;if(o){const 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(i=me.pathFromString(e[0]).path,0===s.bias){const e=a.getBoundingClientRect();tt.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 i=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()c.right,r=i=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){if(this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,s=this._pathFromPoint(d,p,{bias:0}),s){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,s),s=me.clone(this.mathlist.path),s[s.length-1].offset-=1):this.mathlist.setPath(s,0),o=!0,this.style={},3===t.detail||Si>2?(n(t),3!==t.detail&&3!==Si||this.mathlist.selectAll_()):i||(i=!0,window.PointerEvent?(gi(e.field,"pointermove",h),gi(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(gi(window,"blur",n),t.touches?(gi(t.target,"touchmove",h),gi(t.target,"touchend",n)):(gi(window,"mousemove",h),gi(window,"mouseup",n))),2!==t.detail&&2!==Si||(a=!0,this.mathlist.selectGroup_()))}}else wi=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 s=t?t.path:[],i=this.mathlist.path,a=i[i.length-1];let o="";for(;s.length>i.length;)o+="out of "+e(t.parent(),s[s.length-1])+"; ",s.pop();if(!this.mathlist.isCollapsed())return Ai(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+=Ai(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,s){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,s)}_onFocus(){this.config.readOnly||this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),Je.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())}_onBlur(){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))}_onResize(){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"),Je.updatePopoverPosition(this)}toggleKeystrokeCaption_(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")}_showKeystroke(t){const e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const s=this.element.getBoundingClientRect();e.style.left=s.left+"px",e.style.top=s.top-64+"px",e.innerHTML=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,s=!1,i=[],a=!1;if(Array.isArray(t)?(e=t[0],i=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](...i),/^(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=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,s=!0}else"function"==typeof this[e]&&(a=this[e](...i),s=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),s}performWithFeedback_(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=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"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=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let s=0,i=!1;for(this.mathlist.contentWillChange();!i;){const a=this.mathlist.sibling(s);i=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),i||(a.applyStyle({mode:"text"}),a.latex=a.body),s-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let s=0,i=!1;for(;!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),i||a.applyStyle({mode:"math",type:"mord"}),s-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){let t="",e=0,s=!1;for(;!s;){const i=this.mathlist.sibling(e);s=!(i&&("text"===i.mode&&!i.type||"math"===i.mode&&/mord|textord|mpunct/.test(i.type))),s||(t=i.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(s));const i=this.getTextBeforeAnchor_()+s;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(s))return!0;if(/[\^_]/.test(s))return/(^|\s)[a-zA-Z][^_]$/.test(i)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[s];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(i))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(s))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(i))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(i)){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(i))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(i))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(s))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(i)&&!/(dxd|abc|xyz|uvw)$/.test(i))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(i))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(i)&&!/(αβγ)$/.test(i))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(s))return!0}return!1}_onKeystroke(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 s,i,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!s&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const i=this.mode;s?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==i&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(s||a||(a=ve.selectorForKeystroke(this.mode,t)),!s&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!s){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)||s)&&s){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(s)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const s=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[i],{...this.config,suppressChangeNotifications:!0}),this.mode=s}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(s,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),s.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}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");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=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),s=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(s),s))return}let s="",a=!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},o=i(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),i=At.suggest(e+t);a=i.length>1,0===i.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),i[0].match!==e+t&&this.mathlist.insertSuggestion(i[0].match,-i[0].match.length+e.length+1),s=i[0].match)}else if("math"===this.mode){const s={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(s){if("moveToSuperscript"===s){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===s&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$perform(s)}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(),Je.showPopoverWithLatex(this,s,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let s=0;ski(this)&&this._render()))}_render(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,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,s=!1;for(;t&&!s;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,s=!0),e+=1,t=this.mathlist.ancestor(e)}const s=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),i=N.makeSpan(s,"ML__base");i.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",i.height,"em");const o=[a];if(0!==i.depth){const t=N.makeSpan("","ML__strut--bottom");t.setStyle("height",i.height+i.depth,"em"),t.setStyle("vertical-align",-i.depth,"em"),o.push(t)}o.push(i);const n=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(t,e){let s="";if("latex"===(e=e||"latex")||"latex-expanded"===e)s=t.toLatex("latex-expanded"===e);else if("mathML"===e)s=t.toMathML(this.config);else if("spoken"===e)s=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",s=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const i=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),s=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=i,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);s=JSON.stringify(e)}else"ASCIIMath"===e&&(s=function t(e,s){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 i=0;for(s='"';e[i]&&"text"===e[i].mode;)s+=e[i].body,i++;s+='"'+t(e.slice(i))}else{let i=0;for(;e[i]&&"math"===e[i].mode;)s+=t(e[i]),i++;s+=t(e.slice(i))}return s.trim()}if("text"===e.mode)return'"'+e.body+'"';let i="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":i=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(i+="(",i+=t(e.numer),i+=")/(",i+=t(e.denom),i+=")"):(i+="("+t(e.numer)+"),",i+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?i+="root("+t(e.index)+")("+t(e.body)+")":i+="sqrt("+t(e.body)+")";break;case"leftright":i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",i+=t(e.body),i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":i=hs[a]||a||("string"==typeof e.body?e.body:""),"\\"===i[0]&&(i+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?i=String.fromCharCode(parseInt("0x"+o[1])):i.length>0&&"\\"===i.charAt(0)&&(i="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":i=a&&hs[a]?hs[a]:a&&ds[a]?ds[a]:e.body;break;case"mopen":case"mclose":i+=e.body;break;case"mpunct":i=ds[a]||a;break;case"mop":"​"!==e.body&&(i="",i+="\\operatorname"===a?t(e.body):e.body||a,i+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":i=" "}if(e.subscript){i+="_";const s=t(e.subscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}if(e.superscript){i+="^";const s=t(e.superscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}return i}(t,this.config));return s}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const s=te.makeRoot("math",e);return this.formatMathlist(s,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!0:s.subscript&&(i=!1),e+=1,s=this.mathlist.ancestor(e);return i?t:0}_subscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!1:s.subscript&&(i=!0),e+=1,s=this.mathlist.ancestor(e);return i?t:0}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(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()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const s=this._getSelectionBounds();s&&(t={x:s.right+e.left-this.field.scrollLeft,y:s.top+e.top-this.field.scrollTop})}if(t){const s=t.x-window.scrollX;se.right&&this.field.scroll({top:0,left:s-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(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 s=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=s)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1}switchMode_(t,e,s){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(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,s&&this.$insert(s,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const s=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(s)}else{const s=he.parseTokens(n(e),t,null,this.config.macros);s?this.mathlist.spliceCommandStringAroundInsertionPoint(s):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const s=this.suggestionIndex%e.length,i=t.length-e[s].match.length;0!==i&&this.mathlist.insertSuggestion(e[s].match,i),Je.showPopoverWithLatex(this,e[s].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const s=this;let i,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)),gi(t,"mousedown touchstart:passive",(function(e){if("mousedown"!==e.type||1===e.buttons){e.stopPropagation(),e.preventDefault(),t.classList.add("pressed"),i=Date.now(),"touchstart"===e.type&&(o=e.changedTouches[0].identifier);const n=t.getAttribute("data-"+s.config.namespace+"command-pressed");n&&s.$perform(JSON.parse(n));const l=t.getAttribute("data-"+s.config.namespace+"command-pressAndHoldStart");l&&(a=t,r&&clearTimeout(r),r=window.setTimeout((function(){t.classList.contains("pressed")&&s.$perform(JSON.parse(l))}),300))}})),gi(t,"mouseleave touchcancel",(function(){t.classList.remove("pressed")})),gi(t,"touchmove:passive",(function(t){t.preventDefault();for(let e=0;e=7?s.style.width="286px":4===e.length||2===e.length?s.style.width="146px":1===e.length?s.style.width="86px":s.style.width="146px",s.style.height="auto";let i="";for(const t of e)i+="";i="
      "+i+"
    ",s.innerHTML=i,cs.makeKeycap(this,s.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-s.clientHeight<0&&(s.style.width="auto",e.length<=6?s.style.height="56px":e.length<=12?s.style.height="108px":s.style.height="205px");const t=(a.top-s.clientHeight+5).toString()+"px",i=Math.max(0,Math.min(window.innerWidth-s.offsetWidth,(a.left+a.right-s.offsetWidth)/2))+"px";s.style.transform="translate("+i+","+t+")",s.classList.add("is-visible")}return!1}hideAlternateKeys_(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",xi(t)),!1}performAlternateKeys_(t){return this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(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 s=!1;for(let i=0;i=1){s=[];for(let t=1;t<=i;t++)s.push(e[t])}break}case"right":{const e=t.mathlist.siblings(),i=t.mathlist.endOffset()+1;if(i<=e.length-1){s=[];for(let t=i;t<=e.length-1;t++)s.push(e[t])}break}case"start":case"end":break;case"group":s=t.mathlist.siblings();break;case"parent":{const e=t.mathlist.parent();e&&"root"!==e.type&&(s=t.mathlist.parent());break}}return s}(this,t);if(null===s)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 i={...this.config};(e.withHighlighting||"amazon"===i.speechEngine)&&(i.textToSpeechMarkup=window.sre&&"sre"===i.textToSpeechRules?"ssml_step":"ssml",e.withHighlighting&&(i.generateID=!0));const a=te.toSpeakableText(s,i);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,i),!1}}let wi,Si=0;function Ai(t,e,s){const i=Object.assign({},t.config);return i.textToSpeechMarkup="",i.textToSpeechRulesOptions=i.textToSpeechRulesOptions||{},i.textToSpeechRulesOptions.markup="none",e+te.toSpeakableText(s,i)}function Mi(t,e,s,i){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>{})),t._resetKeystrokeBuffer()):"delete"===e?a=Ai(t,"deleted: ",i):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(s):"replacement"===e?a=Ai(t,"",t.mathlist.sibling(0)):"line"===e?(a=Ai(t,"",t.mathlist.root),t.accessibleNode.innerHTML=''+te.toMathML(t.mathlist.root,t.config)+"",t.textarea.setAttribute("aria-label","after: "+a)):a=i?Ai(t,e+" ",i):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}vi.prototype.undo_=vi.prototype.undo,vi.prototype.redo_=vi.prototype.redo,vi.prototype.scrollIntoView_=vi.prototype.scrollIntoView,vi.prototype.scrollToStart_=vi.prototype.scrollToStart,vi.prototype.scrollToEnd_=vi.prototype.scrollToEnd,vi.prototype.insert_=vi.prototype.$insert;var Ci={isValidMathfield:ki,MathField:vi};function _i(t,e,s){let i=s,a=0;const o=t.length;for(;i0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(r=n.indexOf(e,c),-1===r){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(r=_i(s,n,c+e.length),-1===r){h=!0;break}a.push({type:"math",data:n.slice(c+e.length,r),rawData:n.slice(c,r+s.length),mathstyle:i}),c=r+s.length}l=!l}c"+e.renderToMathML(t,e)+""}catch(e){s.textContent=t}return s.className="sr-only",s}(t,s)),/\bspeakable-text\b/i.test(s.renderAccessibleContent)&&s.renderToSpeakableText){const i=document.createElement("span");i.innerHTML=s.renderToSpeakableText(t,s),i.className="sr-only",e.appendChild(i)}return e.appendChild(a),e}return a}function Di(t,e){let s=null;if(e.TeX.processEnvironments&&/^\s*\\begin/.test(t))s=document.createDocumentFragment(),s.appendChild(Fi(t,void 0,e,!0));else{const i=Li(t,e.TeX.delimiters);if(1===i.length&&"text"===i[0].type)return null;s=document.createDocumentFragment();for(let t=0;t{})}}))}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Bi(t,e,s){if(!window)return;if(!s&&window.mathlive&&(s=window.mathlive.config),"amazon"!==(s=s||{}).speechEngine)return void(s.handleSpeak&&s.handleSpeak(e));if(!window.AWS)return;const i=new window.AWS.Polly({apiVersion:"2016-06-10"}),a={OutputFormat:"json",VoiceId:s.speechEngineVoice||"Joanna",Text:e,TextType:"ssml",SpeechMarkTypes:["ssml"]};window.mathlive=window.mathlive||{},window.mathlive.readAloudElement=t;const o=s.onReadAloudStatus||window.mathlive.onReadAloudStatus;i.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=[],i.synthesizeSpeech(a,(function(t,e){if(t);else if(e&&e.AudioStream){const t=new 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d=Vt(t,[s,o,c,i]);if(!this.index)return this.bind(t,Nt([r,d],"sqrt"));const p=t.clone({mathstyle:M.SCRIPTSCRIPT}),m=Kt(Qt(p,this.index),e.adjustTo(M.SCRIPTSCRIPT)),u=Math.max(r.height,d.height),f=Math.max(r.depth,d.depth),g=Vt(t,[m],"shift",-.6*(u-f));return this.bind(t,Nt([Kt(g,"root"),r,d],"sqrt"))}decomposeAccent(t){const e=t.mathstyle;let s=Qt(t.cramp(),this.body);(this.superscript||this.subscript)&&(s=this.attachSupsub(t,Nt(s),"mord"));let i=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(i=N.skew(s));const a=Math.min(N.height(s),e.metrics.xHeight),o=N.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Kt(Kt(o),"accent-body"+n);return r=Vt(t,[s,-a,r]),r.children[1].setLeft(2*i),Nt(r,"accent")}decomposeLine(t){const e=t.mathstyle,s=Qt(t.cramp(),this.body),i=h.defaultRuleThickness/e.sizeMultiplier,a=Kt(null,t.mathstyle.adjustTo(M.TEXT)+" "+this.position+"-line");let o;if(a.height=i,a.maxFontSize=1,"overline"===this.position)o=Vt(t,[s,3*i,a,i]);else{const e=Kt(s);o=Vt(t,[i,a,3*i,e],"top",N.height(e))}return Nt(o,this.position)}decomposeOverunder(t){const e=Qt(t,this.body),s=t.clone({mathstyle:"scriptstyle"}),i=this.overscript?Kt(Qt(s,this.overscript),t.mathstyle.adjustTo(s.mathstyle)):null,a=this.underscript?Kt(Qt(s,this.underscript),t.mathstyle.adjustTo(s.mathstyle)):null;return Yt(t,e,0,0,i,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Kt(Qt(t,this.body),"inner");return Nt([e,Kt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,s=Nt("","rule");let i=this.shift&&!isNaN(this.shift)?this.shift:0;i/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return s.setStyle("border-right-width",a,"em"),s.setStyle("border-top-width",o,"em"),s.setStyle("margin-top",-(o-i),"em"),s.setStyle("border-color",t.color),s.width=a,s.height=o+i,s.depth=-i,s}decomposeOp(t){const e=t.mathstyle;let s,i=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(i=!0);let a=0,o=0;if(this.symbol){const n=i?"Size2-Regular":"Size1-Regular";s=N.makeSymbol(n,this.body,"op-symbol "+(i?"large-op":"small-op")),s.type="mop",a=(s.height-s.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=s.italic,this.bind(t,s)}else Array.isArray(this.body)?(s=N.makeOp(Qt(t,this.body)),this.bind(t,s)):s=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const i=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===i||"auto"===i&&e.size===M.DISPLAY.size?this.attachLimits(t,s,a,o):this.attachSupsub(t,s,"mop")}return this.symbol&&s.setTop(a),s}decomposeBox(t){const e=Nt(Qt(t,this.body)),s=Kt();s.setStyle("position","absolute");const i="number"==typeof this.padding?this.padding:h.fboxsep;s.setStyle("height",e.height+e.depth+2*i,"em"),0!==i?s.setStyle("width","calc(100% + 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i="";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",(N.height(e)+N.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&&(i+='0?s.setWidth(this.width):s.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";s=Kt("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?s=this.decomposeBox(t):"enclose"===this.type?s=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(s=this.makeSpan(t,this.body),s.classes="",this.error&&(s.classes+=" ML__error"),this.suggestion&&(s.classes+=" ML__suggestion")):"placeholder"===this.type?s=this.makeSpan(t,"⬚"):"first"===this.type&&(s=this.makeSpan(t,"​"));if(!s)return s;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(s)?s[s.length-1].caret=this.caret:s.caret=this.caret),this.containsCaret&&(Array.isArray(s)?(s[0].classes=(s[0].classes||"")+" ML__contains-caret",s[s.length-1].classes=(s[s.length-1].classes||"")+" ML__contains-caret"):s.classes=(s.classes||"")+" ML__contains-caret"),!this.limits&&(this.superscript||this.subscript))if(Array.isArray(s)){const e=s[s.length-1];s[s.length-1]=this.attachSupsub(t,e,e.type)}else s=[this.attachSupsub(t,s,s.type)];return Array.isArray(s)?s:[s]}attachSupsub(t,e,s){if(!this.superscript&&!this.subscript)return e;const i=t.mathstyle;let a=null,o=null;if(this.superscript){const e=Qt(t.sup(),this.superscript);a=Kt(e,i.adjustTo(i.sup()))}if(this.subscript){const e=Qt(t.sub(),this.subscript);o=Kt(e,i.adjustTo(i.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=N.height(e)-i.metrics.supDrop,l=N.depth(e)+i.metrics.subDrop),n=i===M.DISPLAY?i.metrics.sup1:i.cramped?i.metrics.sup3:i.metrics.sup2;const c=M.TEXT.sizeMultiplier*i.sizeMultiplier,d=.5/h.ptPerEm/c;let p=null;if(o&&a){r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),l=Math.max(l,i.metrics.sub2);const s=h.defaultRuleThickness;if(r-N.depth(a)-(N.height(o)-l)<4*s){l=4*s-(r-a.depth)+N.height(o);const t=.8*i.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Vt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,i.metrics.sub1,N.height(o)-.8*i.metrics.xHeight),p=Vt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),p=Vt(t,[a],"shift",-r),p.children[0].setRight(d));const m=Kt(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(s,[e,m])}attachLimits(t,e,s,i){const a=this.superscript?Kt(Qt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Kt(Qt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Yt(t,e,s,i,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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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 s="textord"===this.type?"mord":this.type,i=N.makeSpanOfType(s,e),a=this.getStyle();i.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+o):t.parentSize!==t.size&&(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+t.size),i.maxFontSize=Math.max(i.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(i.classes+=" ML__text"),t.mathstyle.isTight()&&(i.isTight=!0),"math"!==this.mode&&(i.italic=0),i.setRight(i.italic),"number"==typeof t.opacity&&i.setStyle("opacity",t.opacity),this.bind(t,i),this.caret&&(this.superscript||this.subscript||(i.caret=this.caret,t.mathstyle.isTight()&&(i.isTight=!0))),i}}function Xt(t){const e=Kt("​","arraycolsep");return e.setWidth(t,"em"),e}function Jt(t,e,s,i){const a=[];for(const o of e){const e=Kt(Qt(t,i));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-s)}return Vt(t,a,"individualShift")}function Yt(t,e,s,i,a,o,n){if(!a&&!o)return e;e=Kt(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+s;c=Vt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-i),c.children[2].setLeft(i)}else if(o&&!a){const a=N.height(e)-s;c=Vt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-i)}else if(!o&&a){const o=N.depth(e)+s;c=Vt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(i)}return N.makeSpanOfType(n,c,"op-limits")}function Qt(t,e){function s(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function i(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Gt[t.size]/Gt[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var te={MathAtom:Zt,decompose:Qt,makeRoot:function(t,e){const s=new Zt(t=t||"math","root",e||[]);return 0!==s.body.length&&"first"===s.body[0].type||s.body.unshift(new Zt("","first")),s},GREEK_REGEX:Ut};const ee={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},se={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 ie=function(t){const e=t.toLowerCase().split("!");let s,i,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=0&&(o=(1-l)*o+l*s,n=(1-l)*n+l*i,r=(1-l)*r+l*a,l=-1),t+1=0&&(o=l*o+(1-l)*s,n=l*n+(1-l)*i,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)},ae=function(t){let e=t.toUpperCase();for(const t in se)if(se[t]===e){e=t;break}for(const t in ee)if(ee[t]===e){e=t;break}return e},oe=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ne=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const re=te.MathAtom;class le{constructor(t,e,s){this.tokens=t,this.index=0,this.args=e,this.macros=s,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=t.length}const a=t.toUpperCase()===i.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 ie(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let s=10,i=/[0-9]/;this.parseLiteral("'")?(s=8,i=/[0-7]/,t=!0):(this.parseLiteral('"')||this.parseLiteral("x"))&&(s=16,i=/[0-9A-F]/,t=!0);let a="";for(;this.hasLiteralPattern(i);)a+=this.get().value;if(!t&&(this.parseLiteral(".")||this.parseLiteral(",")))for(a+=".";this.hasLiteralPattern(i);)a+=this.get().value;const o=t?parseInt(a,s):parseFloat(a);return e?-o:o}scanDimen(){const t=this.scanNumber(!1);let e;return this.skipWhitespace(),e=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"),e}scanSkip(){const t=this.scanDimen();return 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t=s.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==s.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let s=e.length-1;s>=0;s--)"command"===e[s].type?e.splice(s,1):t(e[s]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let s=_e(e.array);s>=0;s--)t(Ce(e.array,s))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let s=this.startOffset();if("text"===t[s].mode)for(;s>=1&&"text"===t[s].mode;)e.unshift(t[s]),s--;else for(;s>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[s].type);)e.unshift(t[s]),s--;return e},we.prototype.setSelection=function(t,e,s){t=t||0,e=e||0;const i=this.path[this.path.length-1].relation;s||(s=i);const a=this.parent();if(!a&&"body"!==s)return!1;const o=s.startsWith("cell");if(!o&&!a[s]||o&&!a.array)return!1;const n=s!==i;this.path[this.path.length-1].relation=s;const r=this.siblings().length;this.path[this.path.length-1].relation=i;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=s,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},we.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 s=e[this.relation()];const i=this.parent();for(;s&&!i[s];)s=e[s];if(s)return void this.setSelection(0,0,s);if(this.parent().array){const t=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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 s=this.anchor();if(!s.captureSelection){let t;if(s.array){t="";const e=_e(s.array);let i=e-1;for(;!t&&i0)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)}},we.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const s=this.relation();if("denom"===s)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=Me(this.parent().array,s);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const s=this.relation();if("numer"===s)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=Me(this.parent().array,s);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,s=0;const i=Se(this);s=this.extent+t;const a=e+s;if(a<0&&0!==s){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",i);e=this.path[this.path.length-1].offset,s=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",i);this.isCollapsed()&&(e-=1),s-=1}this.setSelection(e,s),this._announce("move",i)},we.prototype.skip=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=Se(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(s&&(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),n<0&&!s)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 s="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(s){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",i)}},we.prototype.jump=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,i.length-1));const o=t<0?0:i.length-1;s?this.extend(o-a):this.move(o-a)},we.prototype.jumpToMathFieldBoundary=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const i=Se(this),a=[{relation:"body",offset:this.path[0].offset}];let o;s?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(i,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"])',s=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let i=s.indexOf(document.activeElement)+t;i<0&&(i=s.length-1),i>=s.length&&(i=0),s[i].focus()}return this.suppressChangeNotifications=s,!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",i),this.selectionDidChange(),this.suppressChangeNotifications=s,!0},we.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e=i.mode),s+=1,i=this.ancestor(s);return e},we.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e={color:i.color,backgroundColor:i.backgroundColor,fontFamily:i.fontFamily,fontShape:i.fontShape,fontSeries:i.fontSeries,fontSize:i.fontSize}),s+=1,i=this.ancestor(s);return e},we.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 s=0,i=0,a=0;for(let o=0;t[e].body[o];o++)"genfrac"===t[e].body[o].type&&(s++,i=o),"first"!==t[e].body[o].type&&a++;0===a&&1===s&&(t[e]=t[e].body[i])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const s=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const i=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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,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=he.parseTokens(n(t),"text",r,e.macros,!1));!function t(e,s){e&&s&&(Array.isArray(e)?e.forEach(e=>t(e,s)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(s),t(e.body,s),t(e.numer,s),t(e.denom,s),t(e.index,s),t(e.overscript,s),t(e.underscript,s),t(e.subscript,s),t(e.superscript,s))))}(o,e.style);const h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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=i,"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=s},we.prototype._insertSmartFence=function(t,e){const s=this.parent();if("leftright"===s.type&&"|"!==s.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 i=At.RIGHT_DELIM[t];if(i&&("leftright"!==s.type||"|"!==s.leftDelim)){let s="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;s=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",s+=a?"?":i;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(s,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),a){if(s&&"leftright"===s.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),s.rightDelim=t,this.move(1),this.contentDidChange(),!0;const i=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==i[a].type||"?"!==i[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),i[a].rightDelim=t,i[a].body=i[a].body.concat(i.slice(a+1,this.endOffset()+1)),i.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(s&&"leftright"===s.type&&"?"===s.rightDelim){this.contentWillChange(),s.rightDelim=t;const e=i.slice(this.endOffset()+1);return i.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()===i.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let s=e.start;for(;s=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const s=[],i=t.substr(e);for(const t of i){const e=new te.MathAtom("command","command",t);e.suggestion=!0,s.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(s))},we.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))},we.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++},we.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.row0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(s+=1)}i.row+=1}return s}(t,e.col)){!function(t,e){let 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof 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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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 s=t?t.path:[],i=this.mathlist.path,a=i[i.length-1];let o="";for(;s.length>i.length;)o+="out of "+e(t.parent(),s[s.length-1])+"; ",s.pop();if(!this.mathlist.isCollapsed())return Ai(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+=Ai(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,s){"function"==typeof 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e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const s=this.element.getBoundingClientRect();e.style.left=s.left+"px",e.style.top=s.top-64+"px",e.innerHTML=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,s=!1,i=[],a=!1;if(Array.isArray(t)?(e=t[0],i=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](...i),/^(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=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,s=!0}else"function"==typeof this[e]&&(a=this[e](...i),s=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),s}performWithFeedback_(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=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"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=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let s=0,i=!1;for(this.mathlist.contentWillChange();!i;){const a=this.mathlist.sibling(s);i=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),i||(a.applyStyle({mode:"text"}),a.latex=a.body),s-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let s=0,i=!1;for(;!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),i||a.applyStyle({mode:"math",type:"mord"}),s-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){let t="",e=0,s=!1;for(;!s;){const i=this.mathlist.sibling(e);s=!(i&&("text"===i.mode&&!i.type||"math"===i.mode&&/mord|textord|mpunct/.test(i.type))),s||(t=i.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(s));const i=this.getTextBeforeAnchor_()+s;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(s))return!0;if(/[\^_]/.test(s))return/(^|\s)[a-zA-Z][^_]$/.test(i)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[s];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(i))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(s))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(i))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(i)){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(i))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(i))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(s))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(i)&&!/(dxd|abc|xyz|uvw)$/.test(i))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(i))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(i)&&!/(αβγ)$/.test(i))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(s))return!0}return!1}_onKeystroke(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 s,i,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!s&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const i=this.mode;s?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==i&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(s||a||(a=ve.selectorForKeystroke(this.mode,t)),!s&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!s){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)||s)&&s){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(s)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const s=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[i],{...this.config,suppressChangeNotifications:!0}),this.mode=s}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(s,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),s.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}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");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=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),s=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(s),s))return}let s="",a=!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},o=i(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),i=At.suggest(e+t);a=i.length>1,0===i.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),i[0].match!==e+t&&this.mathlist.insertSuggestion(i[0].match,-i[0].match.length+e.length+1),s=i[0].match)}else if("math"===this.mode){const s={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(s){if("moveToSuperscript"===s){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===s&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$perform(s)}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(),Je.showPopoverWithLatex(this,s,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let s=0;ski(this)&&this._render()))}_render(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,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,s=!1;for(;t&&!s;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,s=!0),e+=1,t=this.mathlist.ancestor(e)}const s=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),i=N.makeSpan(s,"ML__base");i.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",i.height,"em");const o=[a];if(0!==i.depth){const t=N.makeSpan("","ML__strut--bottom");t.setStyle("height",i.height+i.depth,"em"),t.setStyle("vertical-align",-i.depth,"em"),o.push(t)}o.push(i);const n=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(t,e){let s="";if("latex"===(e=e||"latex")||"latex-expanded"===e)s=t.toLatex("latex-expanded"===e);else if("mathML"===e)s=t.toMathML(this.config);else if("spoken"===e)s=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",s=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const i=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),s=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=i,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);s=JSON.stringify(e)}else"ASCIIMath"===e&&(s=function t(e,s){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 i=0;for(s='"';e[i]&&"text"===e[i].mode;)s+=e[i].body,i++;s+='"'+t(e.slice(i))}else{let i=0;for(;e[i]&&"math"===e[i].mode;)s+=t(e[i]),i++;s+=t(e.slice(i))}return s.trim()}if("text"===e.mode)return'"'+e.body+'"';let i="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":i=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(i+="(",i+=t(e.numer),i+=")/(",i+=t(e.denom),i+=")"):(i+="("+t(e.numer)+"),",i+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?i+="root("+t(e.index)+")("+t(e.body)+")":i+="sqrt("+t(e.body)+")";break;case"leftright":i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",i+=t(e.body),i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":i=hs[a]||a||("string"==typeof e.body?e.body:""),"\\"===i[0]&&(i+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?i=String.fromCharCode(parseInt("0x"+o[1])):i.length>0&&"\\"===i.charAt(0)&&(i="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":i=a&&hs[a]?hs[a]:a&&ds[a]?ds[a]:e.body;break;case"mopen":case"mclose":i+=e.body;break;case"mpunct":i=ds[a]||a;break;case"mop":"​"!==e.body&&(i="",i+="\\operatorname"===a?t(e.body):e.body||a,i+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":i=" "}if(e.subscript){i+="_";const s=t(e.subscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}if(e.superscript){i+="^";const s=t(e.superscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}return i}(t,this.config));return s}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const s=te.makeRoot("math",e);return this.formatMathlist(s,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!0:s.subscript&&(i=!1),e+=1,s=this.mathlist.ancestor(e);return i?t:0}_subscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!1:s.subscript&&(i=!0),e+=1,s=this.mathlist.ancestor(e);return i?t:0}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const s=this._getSelectionBounds();s&&(t={x:s.right+e.left-this.field.scrollLeft,y:s.top+e.top-this.field.scrollTop})}if(t){const s=t.x-window.scrollX;se.right&&this.field.scroll({top:0,left:s-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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 s=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=s)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1}switchMode_(t,e,s){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,s&&this.$insert(s,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const s=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(s)}else{const s=he.parseTokens(n(e),t,null,this.config.macros);s?this.mathlist.spliceCommandStringAroundInsertionPoint(s):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const s=this.suggestionIndex%e.length,i=t.length-e[s].match.length;0!==i&&this.mathlist.insertSuggestion(e[s].match,i),Je.showPopoverWithLatex(this,e[s].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const s=this;let i,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)),gi(t,"mousedown touchstart:passive",(function(e){if("mousedown"!==e.type||1===e.buttons){e.stopPropagation(),e.preventDefault(),t.classList.add("pressed"),i=Date.now(),"touchstart"===e.type&&(o=e.changedTouches[0].identifier);const n=t.getAttribute("data-"+s.config.namespace+"command-pressed");n&&s.$perform(JSON.parse(n));const l=t.getAttribute("data-"+s.config.namespace+"command-pressAndHoldStart");l&&(a=t,r&&clearTimeout(r),r=window.setTimeout((function(){t.classList.contains("pressed")&&s.$perform(JSON.parse(l))}),300))}})),gi(t,"mouseleave touchcancel",(function(){t.classList.remove("pressed")})),gi(t,"touchmove:passive",(function(t){t.preventDefault();for(let e=0;e=7?s.style.width="286px":4===e.length||2===e.length?s.style.width="146px":1===e.length?s.style.width="86px":s.style.width="146px",s.style.height="auto";let i="";for(const t of e)i+="";i="
      "+i+"
    ",s.innerHTML=i,cs.makeKeycap(this,s.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-s.clientHeight<0&&(s.style.width="auto",e.length<=6?s.style.height="56px":e.length<=12?s.style.height="108px":s.style.height="205px");const t=(a.top-s.clientHeight+5).toString()+"px",i=Math.max(0,Math.min(window.innerWidth-s.offsetWidth,(a.left+a.right-s.offsetWidth)/2))+"px";s.style.transform="translate("+i+","+t+")",s.classList.add("is-visible")}return!1}hideAlternateKeys_(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",xi(t)),!1}performAlternateKeys_(t){return this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(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 s=!1;for(let i=0;i=1){s=[];for(let t=1;t<=i;t++)s.push(e[t])}break}case"right":{const e=t.mathlist.siblings(),i=t.mathlist.endOffset()+1;if(i<=e.length-1){s=[];for(let t=i;t<=e.length-1;t++)s.push(e[t])}break}case"start":case"end":break;case"group":s=t.mathlist.siblings();break;case"parent":{const e=t.mathlist.parent();e&&"root"!==e.type&&(s=t.mathlist.parent());break}}return s}(this,t);if(null===s)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 i={...this.config};(e.withHighlighting||"amazon"===i.speechEngine)&&(i.textToSpeechMarkup=window.sre&&"sre"===i.textToSpeechRules?"ssml_step":"ssml",e.withHighlighting&&(i.generateID=!0));const a=te.toSpeakableText(s,i);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,i),!1}}let wi,Si=0;function Ai(t,e,s){const i=Object.assign({},t.config);return i.textToSpeechMarkup="",i.textToSpeechRulesOptions=i.textToSpeechRulesOptions||{},i.textToSpeechRulesOptions.markup="none",e+te.toSpeakableText(s,i)}function Mi(t,e,s,i){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>{})),t._resetKeystrokeBuffer()):"delete"===e?a=Ai(t,"deleted: ",i):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(s):"replacement"===e?a=Ai(t,"",t.mathlist.sibling(0)):"line"===e?(a=Ai(t,"",t.mathlist.root),t.accessibleNode.innerHTML=''+te.toMathML(t.mathlist.root,t.config)+"",t.textarea.setAttribute("aria-label","after: "+a)):a=i?Ai(t,e+" ",i):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}vi.prototype.undo_=vi.prototype.undo,vi.prototype.redo_=vi.prototype.redo,vi.prototype.scrollIntoView_=vi.prototype.scrollIntoView,vi.prototype.scrollToStart_=vi.prototype.scrollToStart,vi.prototype.scrollToEnd_=vi.prototype.scrollToEnd,vi.prototype.insert_=vi.prototype.$insert;var Ci={isValidMathfield:ki,MathField:vi};function _i(t,e,s){let i=s,a=0;const o=t.length;for(;i0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(r=n.indexOf(e,c),-1===r){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(r=_i(s,n,c+e.length),-1===r){h=!0;break}a.push({type:"math",data:n.slice(c+e.length,r),rawData:n.slice(c,r+s.length),mathstyle:i}),c=r+s.length}l=!l}c"+e.renderToMathML(t,e)+""}catch(e){s.textContent=t}return s.className="sr-only",s}(t,s)),/\bspeakable-text\b/i.test(s.renderAccessibleContent)&&s.renderToSpeakableText){const i=document.createElement("span");i.innerHTML=s.renderToSpeakableText(t,s),i.className="sr-only",e.appendChild(i)}return e.appendChild(a),e}return a}function Di(t,e){let s=null;if(e.TeX.processEnvironments&&/^\s*\\begin/.test(t))s=document.createDocumentFragment(),s.appendChild(Fi(t,void 0,e,!0));else{const i=Li(t,e.TeX.delimiters);if(1===i.length&&"text"===i[0].type)return null;s=document.createDocumentFragment();for(let t=0;t{})}}))}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Bi(t,e,s){if(!window)return;if(!s&&window.mathlive&&(s=window.mathlive.config),"amazon"!==(s=s||{}).speechEngine)return void(s.handleSpeak&&s.handleSpeak(e));if(!window.AWS)return;const i=new window.AWS.Polly({apiVersion:"2016-06-10"}),a={OutputFormat:"json",VoiceId:s.speechEngineVoice||"Joanna",Text:e,TextType:"ssml",SpeechMarkTypes:["ssml"]};window.mathlive=window.mathlive||{},window.mathlive.readAloudElement=t;const o=s.onReadAloudStatus||window.mathlive.onReadAloudStatus;i.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=[],i.synthesizeSpeech(a,(function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),s=new Blob([t.buffer],{type:"audio/mpeg"}),i=URL.createObjectURL(s);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 s of window.mathlive.readAloudMarks)s.time0&&Array.from(e.children).forEach(e=>{t(e,s)})):(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=i,o&&o(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}}))}}))}function $i(t){let e=t;if("string"==typeof t&&(e=document.getElementById(t),!e))throw Error(`The element with ID "${t}" could not be found.`);return e}function Ri(t,e){Ei&&((e=e||{}).renderToMarkup=e.renderToMarkup||qi,e.renderToMathML=e.renderToMathML||Ii,e.renderToSpeakableText=e.renderToSpeakableText||Pi,e.macros=e.macros||At.MACROS,Ei.renderMathInElement($i(t),e))}function Ki(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}const Ni={latexToMarkup:qi,latexToMathML:Ii,latexToSpeakableText:Pi,latexToAST:function(t,e){if(!te.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,At.MACROS);const s=he.parseTokens(n(t),"math",null,e.macros);return te.toAST(s,e)},astToLatex:function(t,e){return pi(t,e)},makeMathField:function(t,e){if(!Ci)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Oi,e.handleReadAloud=e.handleReadAloud||Bi,new Ci.MathField($i(t),e)},renderMathInDocument:function(t){Ri(document.body,t)},renderMathInElement:Ri,revertToOriginalContent:function(t,e){(t=(t=$i(t)).children[1])instanceof Ci.MathField?t.revertToOriginalContent():(Ki(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=$i(t)).children[1])instanceof Ci.MathField?t.originalContent:(Ki(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Bi,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 s=0;if(window.mathlive.readAloudFinalToken=null,t){window.mathlive.readAloudMarks=window.mathlive.readAloudMarks||[];for(const e of window.mathlive.readAloudMarks)e.value===t&&(s=e.time/1e3);let i=window.mathlive.readAloudTokens.indexOf(t);i>=0&&(i+=e,i−"; + "' data-alt-keys='-' data-key='-' data-alt-keys='-'>−"; } else if (/tt/.test(cls)) { row += "
  • +

    For example, when typing "if x >0":

    +
      +
    • "i" -> math mode, imaginary unit
      • +
    • "if" -> text mode, english word "if"
      • +
    • "if x" -> all in text mode, maybe the next word is xylophone?
      • +
    • "if x >" -> "if" stays in text mode, but now "x >" is in math mode
      • +
    • "if x > 0" -> "if" in text mode, "x > 0" in math mode
      • +
    +

    Smart Mode is off by default.

    +

    Manually switching mode (by typing alt/option+=) will temporarily turn off smart mode.

    +

    Examples

    +
      +
    • slope = rise/run
      • +
    • If x > 0, then f(x) = sin(x)
      • +
    • x^2 + sin (x) when x > 0
      • +
    • When x<0, x^{2n+1}<0
      • +
    • Graph x^2 -x+3 =0 for 0<=x<=5
      • +
    • Divide by x-3 and then add x^2-1 to both sides
      • +
    • Given g(x) = 4x – 3, when does g(x)=0?
      • +
    • Let D be the set {(x,y)|0<=x<=1 and 0<=y<=x}
      • +
    • \int_{the unit square} f(x,y) dx dy
      • +
    • For all n in NN
      • +
    +

    config.smartSuperscript=true:boolean

    If true, when a digit is entered in an empty superscript, the cursor leaps automatically out of the superscript. This makes entry of common diff --git a/tutorials/CONFIG.md b/tutorials/CONFIG.md index 2e985ef9e..8267fa962 100644 --- a/tutorials/CONFIG.md +++ b/tutorials/CONFIG.md @@ -174,6 +174,37 @@ If `false`, the literal value of the character will be inserted instead. --- +**`config.smartMode=false`**:`boolean` + +If `config.smartMode = true`, during text input the field will switch automatically between 'math' and 'text' mode depending on what is typed and the context of the formula. If necessary, what was previously typed will be 'fixed' to account for the new info. + +For example, when typing "if x >0": + +- "i" -> math mode, imaginary unit +- "if" -> text mode, english word "if" +- "if x" -> all in text mode, maybe the next word is xylophone? +- "if x >" -> "if" stays in text mode, but now "x >" is in math mode +- "if x > 0" -> "if" in text mode, "x > 0" in math mode + +Smart Mode is off by default. + +Manually switching mode (by typing `alt/option+=`) will temporarily turn off smart mode. + +**Examples** + +- slope = rise/run +- If x > 0, then f(x) = sin(x) +- x^2 + sin (x) when x > 0 +- When x<0, x^{2n+1}<0 +- Graph x^2 -x+3 =0 for 0<=x<=5 +- Divide by x-3 and then add x^2-1 to both sides +- Given g(x) = 4x – 3, when does g(x)=0? +- Let D be the set {(x,y)|0<=x<=1 and 0<=y<=x} +- \int\_{the unit square} f(x,y) dx dy +- For all n in NN + +--- + **`config.smartSuperscript=true`**:`boolean` If `true`, when a digit is entered in an empty superscript, the cursor From 1c694d9f34dfa8d5f0c810f559a5190d6cd53f75 Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Wed, 5 Feb 2020 17:39:21 -0800 Subject: [PATCH 15/28] 0.34.0 --- npm-shrinkwrap.json | 2 +- package.json | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json index c00298313..16677d35f 100644 --- a/npm-shrinkwrap.json +++ b/npm-shrinkwrap.json @@ -1,6 +1,6 @@ { "name": "mathlive", - "version": "0.33.2", + "version": "0.34.0", "lockfileVersion": 1, "requires": true, "dependencies": { diff --git a/package.json b/package.json index dd3bebfca..8ea8f38e4 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "mathlive", - "version": "0.33.2", + "version": "0.34.0", "description": "Render and edit beautifully typeset math", "license": "MIT", "funding": { From f5f01c33a3d9930a0a7a07c969459163fb07bb93 Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Wed, 5 Feb 2020 17:57:39 -0800 Subject: [PATCH 16/28] Updated CHANGELOG --- CHANGELOG.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 47fad612e..eeca9d140 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,4 +1,4 @@ -## +## 0.34 (Feb 5, 2020) ### Bug Fixes From e74fba1bd570f96c71a86af3d5a60720b6b7b3b6 Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Wed, 5 Feb 2020 18:09:53 -0800 Subject: [PATCH 17/28] chore: avoid prettify-ing the dist directory --- dist/mathlive.core.css | 204 +- dist/mathlive.css | 2085 +--- dist/mathlive.js | 21073 +-------------------------------------- package.json | 6 +- 4 files changed, 8 insertions(+), 23360 deletions(-) diff --git a/dist/mathlive.core.css b/dist/mathlive.core.css index 23c4ba849..0f3f2a4ec 100644 --- a/dist/mathlive.core.css +++ b/dist/mathlive.core.css @@ -1,203 +1 @@ -.ML__mathlive { - line-height: 0; - direction: ltr; - text-align: left; - text-indent: 0; - text-rendering: auto; - font-style: normal; - font-size-adjust: none; - letter-spacing: normal; - word-wrap: normal; - word-spacing: normal; - white-space: nowrap; - display: inline-block; - text-shadow: none; - -webkit-user-select: none; - -moz-user-select: none; - -ms-user-select: none; - user-select: none; - width: -webkit-min-content; - width: -moz-min-content; - width: min-content; - transform: translateZ(0); -} -.ML__base { - display: inline-block; - position: relative; - cursor: text; -} -.ML__strut, -.ML__strut--bottom { - display: inline-block; - min-height: 1em; -} -.ML__caret:after { - content: ''; - border: none; - border-radius: 2px; - border-right: 2px solid var(--caret); - margin-right: -2px; - position: relative; - left: -1px; - -webkit-animation: ML__caret-blink 1.05s step-end infinite forwards; - animation: ML__caret-blink 1.05s step-end infinite forwards; -} -.ML__text-caret:after { - content: ''; - border: none; - border-radius: 1px; - border-right: 1px solid var(--caret); - margin-right: -1px; - position: relative; - left: 0; - -webkit-animation: ML__caret-blink 1.05s step-end infinite forwards; - animation: ML__caret-blink 1.05s step-end infinite forwards; -} -.ML__command-caret:after { - content: '_'; - border: none; - margin-right: -1ex; - position: relative; - color: var(--caret); - -webkit-animation: ML__caret-blink 1.05s step-end infinite forwards; - animation: ML__caret-blink 1.05s step-end infinite forwards; -} -.ML__text { - line-height: 1; - white-space: pre; -} -.ML__focused .ML__text { - background: hsla(var(--hue), 40%, 50%, 0.1); -} -@-webkit-keyframes ML__caret-blink { - 0%, - to { - opacity: 1; - } - 50% { - opacity: 0; - } -} -@keyframes ML__caret-blink { - 0%, - to { - opacity: 1; - } - 50% { - opacity: 0; - } -} -.ML__textarea__textarea { - transform: scale(0); - resize: none; - position: absolute; - clip: rect(0 0 0 0); - width: 1px; - height: 1px; - font-size: 16px; -} -.ML__fieldcontainer { - display: flex; - flex-flow: row; - justify-content: space-between; - align-items: flex-end; - min-height: 39px; - touch-action: none; - width: 100%; - --hue: 212; - --highlight: hsl(var(--hue), 97%, 85%); - --caret: hsl(var(--hue), 40%, 49%); - --highlight-inactive: #ccc; - --primary: hsl(var(--hue), 40%, 50%); - --secondary: hsl(var(--hue), 19%, 26%); - --on-secondary: hsl(var(--hue), 19%, 26%); -} -@media (prefers-color-scheme: dark) { - body:not([theme='light']) .ML__fieldcontainer { - --highlight: hsl(var(--hue), 40%, 49%); - --highlight-inactive: hsl(var(--hue), 10%, 35%); - --caret: hsl(var(--hue), 97%, 85%); - --secondary: hsl(var(--hue), 25%, 35%); - --on-secondary: #fafafa; - } -} -body[theme='dark'] .ML__fieldcontainer { - --highlight: hsl(var(--hue), 40%, 49%); - --highlight-inactive: hsl(var(--hue), 10%, 35%); - --caret: hsl(var(--hue), 97%, 85%); - --secondary: hsl(var(--hue), 25%, 35%); - --on-secondary: #fafafa; -} -.ML__fieldcontainer:focus { - outline: 2px solid var(--primary); - outline-offset: 3px; -} -.ML__fieldcontainer__field { - align-self: center; - position: relative; - overflow: hidden; - line-height: 0; - padding: 2px; - width: 100%; -} -.ML__virtual-keyboard-toggle { - display: flex; - align-self: center; - align-items: center; - flex-shrink: 0; - flex-direction: column; - justify-content: center; - width: 34px; - height: 34px; - padding: 0; - margin-right: 4px; - cursor: pointer; - box-sizing: border-box; - border-radius: 50%; - border: 1px solid transparent; - transition: background 0.2s cubic-bezier(0.64, 0.09, 0.08, 1); - color: var(--primary); - fill: currentColor; - background: transparent; -} -.ML__virtual-keyboard-toggle:hover { - background: hsl(var(--hue), 25%, 35%); - color: #fafafa; - fill: currentColor; - border-radius: 50%; - box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), - 0 3px 1px -2px rgba(0, 0, 0, 0.2); -} -.ML__popover { - visibility: hidden; - min-width: 160px; - background-color: rgba(97, 97, 97, 0.95); - color: #fff; - text-align: center; - border-radius: 6px; - position: fixed; - z-index: 1; - display: flex; - flex-direction: column; - justify-content: center; - box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22); - transition: all 0.2s cubic-bezier(0.64, 0.09, 0.08, 1); -} -.ML__popover:after { - content: ''; - position: absolute; - top: -5px; - left: calc(50% - 3px); - width: 0; - height: 0; - border-left: 5px solid transparent; - border-right: 5px solid transparent; - font-size: 1rem; - border-bottom: 5px solid rgba(97, 97, 97, 0.9); -} -.reverse-direction:after { - top: auto; - bottom: -5px; - border-top: 5px solid rgba(97, 97, 97, 0.9); - border-bottom: 0; -} 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-.ML__keyboard.alternate-keys.is-visible { - visibility: visible; -} -.ML__keyboard.alternate-keys ul { - list-style: none; - margin: 3px; - padding: 0; - display: flex; - flex-flow: row wrap-reverse; - justify-content: center; -} -.ML__keyboard.alternate-keys ul > li { - display: flex; - flex-flow: column; - align-items: center; - justify-content: center; - font-size: 30px; - height: 70px; - width: 70px; - box-sizing: border-box; - margin: 0; - background: transparent; - border: 1px solid transparent; - border-radius: 5px; - pointer-events: all; - color: var(--keyboard-alternate-text); - fill: currentColor; -} -@media only screen and (max-height: 412px) { - .ML__keyboard.alternate-keys ul > li { - font-size: 24px; - height: 50px; - width: 50px; - } -} -.ML__keyboard.alternate-keys ul > li.active, -.ML__keyboard.alternate-keys ul > li.pressed, -.ML__keyboard.alternate-keys ul > li:hover { - box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); - background: 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> li .warning svg { - width: 50px; - height: 50px; -} -.ML__keyboard.alternate-keys ul > li aside { - font-size: 12px; - line-height: 12px; - opacity: 0.78; -} -.ML__keyboard > div.keyboard-layer { - display: none; - outline: none; -} -.ML__keyboard > div.keyboard-layer.is-visible { - display: flex; - flex-flow: column; -} -.ML__keyboard > div > div.keyboard-toolbar { - align-self: center; - display: flex; - flex-flow: row; - justify-content: space-between; - width: 736px; -} -@media only screen and (min-width: 768px) and (max-width: 1024px) { - .ML__keyboard > div > div.keyboard-toolbar { - width: 556px; - } -} -@media only screen and (max-width: 767px) { - .ML__keyboard > div > div.keyboard-toolbar { - width: 365px; - max-width: 100vw; - } -} -.ML__keyboard > div > div.keyboard-toolbar svg { - height: 20px; - width: 20px; -} -@media only screen and (max-width: 767px) { - .ML__keyboard > div > div.keyboard-toolbar svg { - height: 13px; - width: 17px; - } -} -.ML__keyboard > div > div.keyboard-toolbar > .left { - justify-content: flex-start; - display: flex; - flex-flow: row; -} -.ML__keyboard > div > div.keyboard-toolbar > .right { - justify-content: flex-end; - display: flex; - flex-flow: row; -} -.ML__keyboard > div > div.keyboard-toolbar > div > div { - display: flex; - align-items: baseline; - justify-content: center; - pointer-events: all; - color: var(--keyboard-text); - fill: currentColor; - background: 0; - font-size: 110%; - cursor: pointer; - min-height: 0; - padding: 4px 10px; - margin: 7px 4px 6px; - box-shadow: none; - border: none; - border-bottom: 2px solid transparent; -} -.ML__keyboard > div > div.keyboard-toolbar > div > div.disabled.pressed svg, -.ML__keyboard > div > div.keyboard-toolbar > div > div.disabled:hover svg, -.ML__keyboard > div > div.keyboard-toolbar > div > div.disabled svg { - color: var(--keyboard-text); - opacity: 0.2; -} -@media only screen and (max-width: 414px) { - .ML__keyboard > div > div.keyboard-toolbar > div > div { - font-size: 100%; - padding: 0 6px 0 0; - } -} -@media only screen and (max-width: 767px) { - .ML__keyboard > div > div.keyboard-toolbar > div > div { - padding-left: 4px; - padding-right: 4px; - font-size: 90%; - } -} -.ML__keyboard > div > div.keyboard-toolbar > div > div.active, -.ML__keyboard > div > div.keyboard-toolbar > div > div.pressed, -.ML__keyboard > div > div.keyboard-toolbar > div > div:active, -.ML__keyboard > div > div.keyboard-toolbar > div > div:hover { - color: var(--keyboard-text-active); -} -.ML__keyboard > div > div.keyboard-toolbar > div > div.selected { - color: var(--keyboard-text-active); - border-bottom: 2px solid var(--keyboard-text-active); - margin-bottom: 8px; - padding-bottom: 0; -} -.ML__keyboard div .rows { - border: 0; - border-collapse: separate; - clear: both; - margin: auto; - display: flex; - flex-flow: column; - align-items: center; -} -.ML__keyboard div .rows > ul { - list-style: none; - height: 40px; - margin: 0 0 3px; - padding: 0; -} -.ML__keyboard div .rows > ul > li { - display: flex; - flex-flow: column; - align-items: center; - justify-content: center; - width: 34px; - margin-right: 2px; - height: 40px; - box-sizing: border-box; - padding: 8px 0; - vertical-align: top; - text-align: center; - float: left; - color: var(--keycap-text); - fill: currentColor; - font-size: 20px; - background: var(--keycap-background); - border: 1px solid var(--keycap-background-border); - border-bottom-color: var(--keycap-background-border-bottom); - border-radius: 5px; - pointer-events: all; - position: relative; - overflow: hidden; - -webkit-user-select: none; - -moz-user-select: none; - -ms-user-select: none; - user-select: none; - -webkit-tap-highlight-color: transparent; -} -.ML__keyboard div .rows > ul > li:last-child { - margin-right: 0; -} -.ML__keyboard div .rows > ul > li.small { - font-size: 16px; -} -.ML__keyboard div .rows > ul > li.tt { - color: var(--keyboard-text-active); -} -.ML__keyboard div .rows > ul > li.bottom { - justify-content: flex-end; -} -.ML__keyboard div .rows > ul > li.left { - align-items: flex-start; - padding-left: 4px; -} -.ML__keyboard div .rows > ul > li.right { - align-items: flex-end; - padding-right: 4px; -} -.ML__keyboard div .rows > ul > li svg { - width: 20px; - height: 20px; -} -.ML__keyboard div .rows > ul > li .warning { - height: 25px; - width: 25px; - min-height: 25px; - min-width: 25px; - background: #cd0030; - color: #fff; - border-radius: 100%; - padding: 5px; - display: flex; - align-items: center; - justify-content: center; - margin-bottom: -2px; -} -.ML__keyboard div .rows > ul > li .warning svg { - width: 16px; - height: 16px; -} -@media only screen and (max-width: 768px) { - .ML__keyboard div .rows > ul > li .warning { - height: 16px; - width: 16px; - min-height: 16px; - min-width: 16px; - } - .ML__keyboard div .rows > ul > li .warning svg { - width: 14px; - height: 14px; - } -} -.ML__keyboard div .rows > ul > li > .w0 { - width: 0; -} -.ML__keyboard div .rows > ul > li > .w5 { - width: 16px; -} -.ML__keyboard div .rows > ul > li > .w15 { - width: 52px; -} -.ML__keyboard div .rows > ul > li > .w20 { - width: 70px; -} -.ML__keyboard div .rows > ul > li > .w50 { - width: 178px; -} -.ML__keyboard div .rows > ul > li.separator { - background: transparent; - border: none; - pointer-events: none; -} -@media only screen and (max-width: 560px) { - .ML__keyboard div .rows > ul > li.if-wide { - display: none; - } -} -.ML__keyboard div .rows > ul > li.tex-math { - font-size: 25px; -} -.ML__keyboard div .rows > ul > li.pressed, -.ML__keyboard div .rows > ul > li:hover { - background: var(--keycap-background-active); - color: var(--keyboard-text-active); -} -.ML__keyboard div .rows > ul > li.action.active, -.ML__keyboard div .rows > ul > li.action:active, -.ML__keyboard div .rows > ul > li.keycap.active, -.ML__keyboard div .rows > ul > li.keycap:active { - transform: translateY(-20px) scale(1.4); - z-index: 100; - color: var(--keyboard-text-active); -} -.ML__keyboard div .rows > ul > li.modifier.active, -.ML__keyboard div .rows > ul > li.modifier:active { - background: var(--keyboard-text-active); - color: var(--keycap-text-active); -} -.ML__keyboard div .rows > ul > li.action.font-glyph, -.ML__keyboard div .rows > ul > li.modifier.font-glyph { - font-size: 18px; -} -@media only screen and (max-width: 767px) { - .ML__keyboard div .rows > ul > li.action.font-glyph, - .ML__keyboard div .rows > ul > li.modifier.font-glyph { - font-size: 16px; - } -} -@media only screen and (max-width: 767px) { - .ML__keyboard div .rows > ul > li.bigfnbutton, - .ML__keyboard div .rows > ul > li.fnbutton { - font-size: 12px; - } -} -.ML__keyboard div .rows > ul > li.bigfnbutton { - font-size: 14px; -} -@media only screen and (max-width: 767px) { - .ML__keyboard div .rows > ul > li.bigfnbutton { - font-size: 9px; - } -} -.ML__keyboard div .rows > ul > li.action, -.ML__keyboard div .rows > ul > li.modifier { - background-color: var(--keycap-modifier-background); - border-bottom-color: var(--keycap-modifier-border); - border-color: var(--keycap-modifier-border) var(--keycap-modifier-border) - var(--keycap-modifier-border-bottom); - font-size: 65%; - font-weight: 100; -} -.ML__keyboard div .rows > ul > li.action.selected, -.ML__keyboard div .rows > ul > li.modifier.selected { - color: var(--keyboard-text-active); -} -.ML__keyboard div .rows > ul > li.action.selected.active, -.ML__keyboard div .rows > ul > li.action.selected.pressed, -.ML__keyboard div .rows > ul > li.action.selected:active, -.ML__keyboard div .rows > ul > li.action.selected:hover, -.ML__keyboard div .rows > ul > li.modifier.selected.active, -.ML__keyboard div .rows > ul > li.modifier.selected.pressed, -.ML__keyboard div .rows > ul > li.modifier.selected:active, -.ML__keyboard div .rows > ul > li.modifier.selected:hover { - color: #fff; -} -.ML__keyboard div .rows > ul > li.keycap.w50 { - font-size: 80%; - padding-top: 10px; - font-weight: 100; -} -.ML__keyboard div .rows > ul > li small { - color: #555; -} -@media only screen and (max-width: 767px) { - .ML__keyboard div .rows > ul > li small { - font-size: 9px; - } -} -.ML__keyboard div .rows > ul > li aside { - font-family: system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, - Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, - sans-serif; - font-size: 10px; - line-height: 10px; - color: #666; -} -@media only screen and (max-width: 767px) { - .ML__keyboard div .rows > ul > li aside { - display: none; - } -} -@media only screen and (max-width: 414px) { - .ML__keyboard div .rows > ul > li { - width: 29px; - margin-right: 2px; - } - .ML__keyboard div .rows > ul > .w5 { - width: 13.5px; - } - .ML__keyboard div .rows > ul > .w15 { - width: 44.5px; - } - .ML__keyboard div .rows > ul > .w20 { - width: 60px; - } - .ML__keyboard div .rows > ul > .w50 { - width: 153px; - } -} -@media only screen and (min-width: 415px) and (max-width: 768px) { - .ML__keyboard div .rows > ul > li { - width: 37px; - margin-right: 3px; - } - .ML__keyboard div .rows > ul > .w5 { - width: 17px; - } - .ML__keyboard div .rows > ul > .w15 { - width: 57px; - } - .ML__keyboard div .rows > ul > .w20 { - width: 77px; - } - .ML__keyboard div .rows > ul > .w50 { - width: 197px; - } -} -@media only screen and (min-width: 768px) and (max-width: 1024px) { - .ML__keyboard div .rows > ul { - height: 52px; - } - .ML__keyboard div .rows > ul > li { - height: 52px; - width: 51px; - margin-right: 4px; - } - .ML__keyboard div .rows > ul > .w5 { - width: 23.5px; - } - .ML__keyboard div .rows > ul > .w15 { - width: 78.5px; - } - .ML__keyboard div .rows > ul > .w20 { - width: 106px; - } - .ML__keyboard div .rows > ul > .w50 { - width: 271px; - } -} -@media only screen and (min-width: 1025px) { - .ML__keyboard div .rows > ul { - height: 52px; - } - .ML__keyboard div .rows > ul > li { - height: 52px; - width: 66px; - margin-right: 6px; - } - .ML__keyboard div .rows > ul > .action, - .ML__keyboard div .rows > ul > .modifier { - font-size: 80%; - } - .ML__keyboard div .rows > ul > .w5 { - width: 30px; - } - .ML__keyboard div .rows > ul > .w15 { - width: 102px; - } - .ML__keyboard div .rows > ul > .w20 { - width: 138px; - } - .ML__keyboard div .rows > ul > .w50 { - width: 354px; - } -} -@media (prefers-color-scheme: dark) { - body:not([theme='light']) .ML__keyboard { - --hue: 206; - --keyboard-background: hsl(var(--hue), 19%, 38%); - --keyboard-text: #f0f0f0; - --keyboard-text-active: hsl(var(--hue), 100%, 60%); - --keyboard-background-border: #333; - --keycap-background: hsl(var(--hue), 25%, 39%); - --keycap-background-active: hsl(var(--hue), 35%, 42%); - --keycap-background-border: hsl(var(--hue), 25%, 35%); - --keycap-background-border-bottom: #426b8a; - --keycap-text: #d0d0d0; - --keycap-text-active: #000; - --keycap-secondary-text: #fff; - --keycap-modifier-background: hsl(var(--hue), 35%, 40%); - --keycap-modifier-border: hsl(var(--hue), 35%, 35%); - --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); - --keyboard-alternate-background: hsl(var(--hue), 19%, 38%); - --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); - --keyboard-alternate-text: #d1d1d1; - } -} -body[theme='dark'] .ML__keyboard { - --hue: 206; - --keyboard-background: hsl(var(--hue), 19%, 38%); - --keyboard-text: #f0f0f0; - --keyboard-text-active: hsl(var(--hue), 100%, 60%); - --keyboard-background-border: #333; - --keycap-background: hsl(var(--hue), 25%, 39%); - --keycap-background-active: hsl(var(--hue), 35%, 42%); - --keycap-background-border: hsl(var(--hue), 25%, 35%); - --keycap-background-border-bottom: #426b8a; - --keycap-text: #d0d0d0; - --keycap-text-active: #000; - --keycap-secondary-text: #fff; - --keycap-modifier-background: hsl(var(--hue), 35%, 40%); - --keycap-modifier-border: hsl(var(--hue), 35%, 35%); - --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); - --keyboard-alternate-background: hsl(var(--hue), 19%, 38%); - --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); - --keyboard-alternate-text: #d1d1d1; -} -div.ML__keyboard.material { - --keyboard-background: rgba(209, 213, 217, 0.9); - --keyboard-background-border: #ddd; - --keycap-background: transparent; - --keycap-background-active: #cccfd1; - --keycap-background-border: transparent; - --keyboard-alternate-background: #efefef; - --keyboard-alternate-text: #000; - font-family: Roboto, sans-serif; -} -div.ML__keyboard.material.alternate-keys { - background: var(--keyboard-alternate-background); - border: 1px solid transparent; - border-radius: 5px; - box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22); -} -div.ML__keyboard.material.alternate-keys ul li.active, -div.ML__keyboard.material.alternate-keys ul li.pressed, -div.ML__keyboard.material.alternate-keys ul li:active, -div.ML__keyboard.material.alternate-keys ul li:hover { - border: 1px solid transparent; - background: #5f97fc; - color: #fff; - fill: currentColor; -} -div.ML__keyboard.material .keyboard-toolbar > div > div { - font-size: 16px; -} -div.ML__keyboard.material .keyboard-toolbar div.div.active, -div.ML__keyboard.material .keyboard-toolbar div.div.pressed, -div.ML__keyboard.material .keyboard-toolbar div div:active, -div.ML__keyboard.material .keyboard-toolbar div div:hover { - color: #5f97fc; - fill: currentColor; -} -div.ML__keyboard.material .keyboard-toolbar > div > .selected { - color: #5f97fc; - fill: currentColor; - border-bottom: 2px solid #5f97fc; - margin-bottom: 8px; - padding-bottom: 0; -} -div.ML__keyboard.material div > .rows > ul > .keycap { - background: transparent; - border: 1px solid transparent; - border-radius: 5px; - color: var(--keycap-text); - fill: currentColor; - transition: none; -} -div.ML__keyboard.material div > .rows > ul > .keycap.tt { - color: #5f97fc; -} -div.ML__keyboard.material div > .rows > ul > .keycap[data-key=' '] { - margin-top: 10px; - margin-bottom: 10px; - height: 20px; - background: #e0e0e0; -} -div.ML__keyboard.material div > .rows > ul > .keycap[data-key=' '].active, -div.ML__keyboard.material div > .rows > ul > .keycap[data-key=' '].pressed, -div.ML__keyboard.material div > .rows > ul > .keycap[data-key=' ']:active, -div.ML__keyboard.material div > .rows > ul > .keycap[data-key=' ']:hover { - background: #d0d0d0; - box-shadow: none; - transform: none; -} -div.ML__keyboard.material div > .rows > ul > .keycap:not([data-key=' ']):hover { - border: 1px solid transparent; - background: var(--keycap-background-active); - box-shadow: none; -} -div.ML__keyboard.material div > .rows > ul > .keycap:not([data-key=' ']).active, -div.ML__keyboard.material - div - > .rows - > ul - > .keycap:not([data-key=' ']).pressed, -div.ML__keyboard.material - div - > .rows - > ul - > .keycap:not([data-key=' ']):active { - background: var(--keyboard-alternate-background); - color: var(--keyboard-alternate-text); - box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); -} -@media only screen and (max-width: 767px) { - div.ML__keyboard.material - div - > .rows - > ul - > .keycap:not([data-key=' ']).active, - div.ML__keyboard.material - div - > .rows - > ul - > .keycap:not([data-key=' ']).pressed, - div.ML__keyboard.material - div - > .rows - > ul - > .keycap:not([data-key=' ']):active { - box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), - 0 6px 6px rgba(0, 0, 0, 0.23); - font-size: 10px; - vertical-align: top; - width: 19.5px; - margin-right: 10px; - margin-left: 10px; - transform: translateY(-20px) scale(2); - transition: none; - justify-content: flex-start; - padding: 2px 0 0; - z-index: 100; - } -} -@media only screen and (max-width: 414px) { - div.ML__keyboard.material - div - > .rows - > ul - > .keycap:not([data-key=' ']).active, - div.ML__keyboard.material - div - > .rows - > ul - > .keycap:not([data-key=' ']).pressed, - div.ML__keyboard.material - div - > .rows - > ul - > .keycap:not([data-key=' ']):active { - width: 16.5px; - } -} -@media only screen and (max-width: 767px) { - div.ML__keyboard.material div > .rows > ul > .keycap:last-child.active, - div.ML__keyboard.material div > .rows > ul > .keycap:last-child:active { - margin-right: 0; - margin-left: 14px; - } -} -div.ML__keyboard.material div div.rows ul li.action, -div.ML__keyboard.material div div.rows ul li.modifier { - background: transparent; - border: 0; - color: #869096; - fill: currentColor; - font-size: 16px; - transition: none; -} -div.ML__keyboard.material div div.rows ul li.action.selected, -div.ML__keyboard.material div div.rows ul li.modifier.selected { - color: #5f97fc; - border-radius: 0; - border-bottom: 2px solid #5f97fc; -} -div.ML__keyboard.material div div.rows ul li.action.active, -div.ML__keyboard.material div div.rows ul li.action.pressed, -div.ML__keyboard.material div div.rows ul li.action:active, -div.ML__keyboard.material div div.rows ul li.action:hover, -div.ML__keyboard.material div div.rows ul li.modifier.active, -div.ML__keyboard.material div div.rows ul li.modifier.pressed, -div.ML__keyboard.material div div.rows ul li.modifier:active, -div.ML__keyboard.material div div.rows ul li.modifier:hover { - border: 0; - color: var(--keycap-text); - background: var(--keycap-background-active); - box-shadow: none; -} -div.ML__keyboard.material div div.rows ul li.bigfnbutton, -div.ML__keyboard.material div div.rows ul li.fnbutton { - background: transparent; - border: 0; -} -div.ML__keyboard.material div div.rows ul li.bigfnbutton.selected, -div.ML__keyboard.material div div.rows ul li.fnbutton.selected { - color: #5f97fc; - fill: currentColor; - border-radius: 0; - border-bottom: 2px solid #5f97fc; -} -div.ML__keyboard.material div div.rows ul li.bigfnbutton.active, -div.ML__keyboard.material div div.rows ul li.bigfnbutton.pressed, -div.ML__keyboard.material div div.rows ul li.bigfnbutton:active, -div.ML__keyboard.material div div.rows ul li.bigfnbutton:hover, -div.ML__keyboard.material div div.rows ul li.fnbutton.active, -div.ML__keyboard.material div div.rows ul li.fnbutton.pressed, -div.ML__keyboard.material div div.rows ul li.fnbutton:active, -div.ML__keyboard.material div div.rows ul li.fnbutton:hover { - border: 0; - color: #5f97fc; - fill: currentColor; - background: var(--keycap-background-active); - box-shadow: none; -} -@media (prefers-color-scheme: dark) { - body:not([theme='light']) div.ML__keyboard.material { - --hue: 198; - --keyboard-background: hsl(var(--hue), 19%, 18%); - --keyboard-text: #d4d6d7; - --keyboard-text-active: #5f97fc; - --keyboard-background-border: #333; - --keycap-background: hsl(var(--hue), 25%, 39%); - --keycap-background-active: #5f97fc; - --keycap-background-border: transparent; - --keycap-background-border-bottom: transparent; - --keycap-text: #d0d0d0; - --keycap-text-active: #d4d6d7; - --keycap-secondary-text: #5f97fc; - --keycap-modifier-background: hsl(var(--hue), 35%, 40%); - --keycap-modifier-border: hsl(var(--hue), 35%, 35%); - --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); - --keyboard-alternate-background: hsl(var(--hue), 8%, 2%); - --keyboard-alternate-background-active: hsl(var(--hue), 35%, 42%); - --keyboard-alternate-text: #d1d1d1; - } -} -body[theme='dark'] div.ML__keyboard.material { - --hue: 198; - --keyboard-background: hsl(var(--hue), 19%, 18%); - --keyboard-text: #d4d6d7; - --keyboard-text-active: #5f97fc; - --keyboard-background-border: #333; - --keycap-background: hsl(var(--hue), 25%, 39%); - --keycap-background-active: #5f97fc; - --keycap-background-border: transparent; - --keycap-background-border-bottom: transparent; - --keycap-text: #d0d0d0; - --keycap-text-active: #d4d6d7; - --keycap-secondary-text: #5f97fc; - --keycap-modifier-background: hsl(var(--hue), 35%, 40%); - --keycap-modifier-border: hsl(var(--hue), 35%, 35%); - --keycap-modifier-border-bottom: hsl(var(--hue), 35%, 42%); - --keyboard-alternate-background: 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{ - if ((s = s || 0) < 0) return 0; - if (s >= e.length - 1) return e.length; - let a = i(t(e, s)); - for (let r = s + 1; r < e.length; r++) { - if ( - 55296 <= e.charCodeAt(r - 1) && - e.charCodeAt(r - 1) <= 56319 && - 56320 <= e.charCodeAt(r) && - e.charCodeAt(r) <= 57343 - ) - continue; - const s = i(t(e, r)); - if ( - ((n = s), - !( - (11 === (o = a) && 12 === n) || - (3 === o && 11 === n) || - (11 === o && 3 === n) || - (0 === o && 1 === n) || - (2 !== o && - 0 !== o && - 1 !== o && - 2 !== n && - 0 !== n && - 1 !== n && - ((6 === o && - (6 === n || 7 === n || 9 === n || 10 === n)) || - !( - (9 !== o && 7 !== o) || - (7 !== n && 8 !== n) - ) || - ((10 === o || 8 === o) && 8 === n) || - (4 === o && 4 === n) || - 3 === n || - 5 === n)) - )) - ) - return r; - a = s; - } - var o, n; - return e.length; - } - function i(t) { - return 13 === t - ? 0 - : 10 === t - ? 1 - : (0 <= t && t <= 9) || - (11 <= t && t <= 12) || - (14 <= t && t <= 31) || - (127 <= t && t <= 159) || - 173 === t || 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65039) || - (65056 <= t && t <= 65071) || - (65438 <= t && t <= 65439) || - 66045 === t || - 66272 === t || - (66422 <= t && t <= 66426) || - (68097 <= t && t <= 68099) || - (68101 <= t && t <= 68102) || - (68108 <= t && t <= 68111) || - (68152 <= t && t <= 68154) || - 68159 === t || - (68325 <= t && t <= 68326) || - 69633 === t || - (69688 <= t && t <= 69702) || - (69759 <= t && t <= 69761) || - (69811 <= t && t <= 69814) || - (69817 <= t && t <= 69818) || - (69888 <= t && t <= 69890) || - (69927 <= t && t <= 69931) || - (69933 <= t && t <= 69940) || - 70003 === t || - (70016 <= t && t <= 70017) || - (70070 <= t && t <= 70078) || - (70090 <= t && t <= 70092) || - (70191 <= t && t <= 70193) || - 70196 === t || - (70198 <= t && t <= 70199) || - 70367 === t || - (70371 <= t && t <= 70378) || - (70400 <= t && t <= 70401) || - 70460 === t || - 70462 === t || - 70464 === t || - 70487 === t || - (70502 <= t && t <= 70508) || - (70512 <= t && t <= 70516) || - 70832 === t || - (70835 <= t && t <= 70840) || - 70842 === t || - 70845 === t || - (70847 <= t && t <= 70848) || - (70850 <= t && t <= 70851) || - 71087 === t || - (71090 <= t && t <= 71093) || - (71100 <= t && t <= 71101) || - (71103 <= t && t <= 71104) || - (71132 <= t && t <= 71133) || - (71219 <= t && t <= 71226) || - 71229 === t || - (71231 <= t && t <= 71232) || - 71339 === t || - 71341 === t || - (71344 <= t && t <= 71349) || - 71351 === t || - (71453 <= t && t <= 71455) || - (71458 <= t && t <= 71461) || - (71463 <= t && t <= 71467) || - (92912 <= t && t <= 92916) || - (92976 <= t && t <= 92982) || - (94095 <= t && t <= 94098) || - (113821 <= t && t <= 113822) || - 119141 === t || - (119143 <= t && t <= 119145) || - (119150 <= t && t <= 119154) || - (119163 <= t && t <= 119170) || - (119173 <= t && t <= 119179) || - (119210 <= t && t <= 119213) || - (119362 <= t && t <= 119364) || - (121344 <= t && t <= 121398) || - (121403 <= t && t <= 121452) || - 121461 === t || - 121476 === t || - (121499 <= t && t <= 121503) || - (121505 <= t && t <= 121519) || - (125136 <= t && t <= 125142) || - (917760 <= t && t <= 917999) - ? 3 - : 127462 <= t && t <= 127487 - ? 4 - : 127995 <= t && t <= 127999 - ? 12 - : 2307 === t || - 2363 === t || - (2366 <= t && t <= 2368) || - (2377 <= t && t <= 2380) || - (2382 <= t && t <= 2383) || - (2434 <= t && t <= 2435) || - (2495 <= t && t <= 2496) || - (2503 <= t && t <= 2504) || - (2507 <= t && t <= 2508) || - 2563 === t || - (2622 <= t && t <= 2624) || - 2691 === t || - (2750 <= t && t <= 2752) || - 2761 === t || - (2763 <= t && t <= 2764) || - (2818 <= t && t <= 2819) || - 2880 === t || - (2887 <= t && t <= 2888) || - (2891 <= t && t <= 2892) || - 3007 === t || - (3009 <= t && t <= 3010) || - (3014 <= t && t <= 3016) || - (3018 <= t && t <= 3020) || - (3073 <= t && t <= 3075) || - (3137 <= t && t <= 3140) || - (3202 <= t && t <= 3203) || - 3262 === t || - (3264 <= t && t <= 3265) || - (3267 <= t && t <= 3268) || - (3271 <= t && t <= 3272) || - (3274 <= t && t <= 3275) || - (3330 <= t && t <= 3331) || - (3391 <= t && t <= 3392) || - (3398 <= t && t <= 3400) || - (3402 <= t && t <= 3404) || - (3458 <= t && t <= 3459) || - (3536 <= t && t <= 3537) || - (3544 <= t && t <= 3550) || - (3570 <= t && t <= 3571) || - 3635 === t || - 3763 === t || - (3902 <= t && t <= 3903) || - 3967 === t || - 4145 === t || - (4155 <= t && t <= 4156) || - (4182 <= t && t <= 4183) || - 4228 === t || - 6070 === t || - (6078 <= t && t <= 6085) || - (6087 <= t && t <= 6088) || - (6435 <= t && t <= 6438) || - (6441 <= t && t <= 6443) || - (6448 <= t && t <= 6449) || - (6451 <= t && t <= 6456) || - (6681 <= t && t <= 6682) || - 6741 === t || - 6743 === t || - (6765 <= t && t <= 6770) || - 6916 === t || - 6965 === t || - 6971 === t || - (6973 <= t && t <= 6977) || - (6979 <= t && t <= 6980) || - 7042 === t || - 7073 === t || - (7078 <= t && t <= 7079) || - 7082 === t || - 7143 === t || - (7146 <= t && t <= 7148) || - 7150 === t || - (7154 <= t && t <= 7155) || - (7204 <= t 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|| - 47700 === t || - 47728 === t || - 47756 === t || - 47784 === t || - 47812 === t || - 47840 === t || - 47868 === t || - 47896 === t || - 47924 === t || - 47952 === t || - 47980 === t || - 48008 === t || - 48036 === t || - 48064 === t || - 48092 === t || - 48120 === t || - 48148 === t || - 48176 === t || - 48204 === t || - 48232 === t || - 48260 === t || - 48288 === t || - 48316 === t || - 48344 === t || - 48372 === t || - 48400 === t || - 48428 === t || - 48456 === t || - 48484 === t || - 48512 === t || - 48540 === t || - 48568 === t || - 48596 === t || - 48624 === t || - 48652 === t || - 48680 === t || - 48708 === t || - 48736 === t || - 48764 === t || - 48792 === t || - 48820 === t || - 48848 === t || - 48876 === t || - 48904 === t || - 48932 === t || - 48960 === t || - 48988 === t || - 49016 === t || - 49044 === t || - 49072 === t || - 49100 === t || - 49128 === t || - 49156 === t || - 49184 === t || - 49212 === t || - 49240 === t || - 49268 === t || - 49296 === t || - 49324 === 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=== t || - 51004 === t || - 51032 === t || - 51060 === t || - 51088 === t || - 51116 === t || - 51144 === t || - 51172 === t || - 51200 === t || - 51228 === t || - 51256 === t || - 51284 === t || - 51312 === t || - 51340 === t || - 51368 === t || - 51396 === t || - 51424 === t || - 51452 === t || - 51480 === t || - 51508 === t || - 51536 === t || - 51564 === t || - 51592 === t || - 51620 === t || - 51648 === t || - 51676 === t || - 51704 === t || - 51732 === t || - 51760 === t || - 51788 === t || - 51816 === t || - 51844 === t || - 51872 === t || - 51900 === t || - 51928 === t || - 51956 === t || - 51984 === t || - 52012 === t || - 52040 === t || - 52068 === t || - 52096 === t || - 52124 === t || - 52152 === t || - 52180 === t || - 52208 === t || - 52236 === t || - 52264 === t || - 52292 === t || - 52320 === t || - 52348 === t || - 52376 === t || - 52404 === t || - 52432 === t || - 52460 === t || - 52488 === t || - 52516 === t || - 52544 === t || - 52572 === t || - 52600 === t || - 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- 54280 === t || - 54308 === t || - 54336 === t || - 54364 === t || - 54392 === t || - 54420 === t || - 54448 === t || - 54476 === t || - 54504 === t || - 54532 === t || - 54560 === t || - 54588 === t || - 54616 === t || - 54644 === t || - 54672 === t || - 54700 === t || - 54728 === t || - 54756 === t || - 54784 === t || - 54812 === t || - 54840 === t || - 54868 === t || - 54896 === t || - 54924 === t || - 54952 === t || - 54980 === t || - 55008 === t || - 55036 === t || - 55064 === t || - 55092 === t || - 55120 === t || - 55148 === t || - 55176 === t - ? 9 - : (44033 <= t && t <= 44059) || - (44061 <= t && t <= 44087) || - (44089 <= t && t <= 44115) || - (44117 <= t && t <= 44143) || - (44145 <= t && t <= 44171) || - (44173 <= t && t <= 44199) || - (44201 <= t && t <= 44227) || - (44229 <= t && t <= 44255) || - (44257 <= t && t <= 44283) || - (44285 <= t && t <= 44311) || - (44313 <= t && t <= 44339) || - (44341 <= t && t <= 44367) || - (44369 <= t && t <= 44395) || - (44397 <= t && t <= 44423) || - (44425 <= t && t <= 44451) || - (44453 <= t && t <= 44479) || - (44481 <= t && t <= 44507) || - (44509 <= t && t <= 44535) || - (44537 <= t && t <= 44563) || - (44565 <= t && t <= 44591) || - (44593 <= t && t <= 44619) || - (44621 <= t && t <= 44647) || - (44649 <= t && t <= 44675) || - (44677 <= t && t <= 44703) || - (44705 <= t && t <= 44731) || - (44733 <= t && t <= 44759) || - (44761 <= t && t <= 44787) || - (44789 <= t && t <= 44815) || - (44817 <= t && t <= 44843) || - (44845 <= t && t <= 44871) || - (44873 <= t && t <= 44899) || - (44901 <= t && t <= 44927) || - (44929 <= t && t <= 44955) || - (44957 <= t && t <= 44983) || - (44985 <= t && t <= 45011) || - (45013 <= t && t <= 45039) || - (45041 <= t && t <= 45067) || - (45069 <= t && t <= 45095) || - (45097 <= t && t <= 45123) || - (45125 <= t && t <= 45151) || - (45153 <= t && t <= 45179) || - (45181 <= t && t <= 45207) || - (45209 <= t && t <= 45235) || - (45237 <= t && t <= 45263) || - (45265 <= t && t <= 45291) || - (45293 <= t && t <= 45319) || - (45321 <= t && t <= 45347) || - (45349 <= t && t <= 45375) || - (45377 <= t && t <= 45403) || - (45405 <= t && t <= 45431) || - (45433 <= t && t <= 45459) || - (45461 <= t && t <= 45487) || - (45489 <= t && t <= 45515) || - (45517 <= t && t <= 45543) || - (45545 <= t && t <= 45571) || - (45573 <= t && t <= 45599) || - (45601 <= t && t <= 45627) || - (45629 <= t && t <= 45655) || - (45657 <= t && t <= 45683) || - (45685 <= t && t <= 45711) || - (45713 <= t && t <= 45739) || - (45741 <= t && t <= 45767) || - (45769 <= t && t <= 45795) || - (45797 <= t && t <= 45823) || - (45825 <= t && t <= 45851) || - (45853 <= t && t <= 45879) || - (45881 <= t && t <= 45907) || - (45909 <= t && t <= 45935) || - (45937 <= t && t <= 45963) || - (45965 <= t && t <= 45991) || - (45993 <= t && t <= 46019) || - (46021 <= t && t <= 46047) || - (46049 <= t && t <= 46075) || - (46077 <= t && t <= 46103) || - (46105 <= t && t <= 46131) || - (46133 <= t && t <= 46159) 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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], - }, - }; - const l = /[\u3040-\u309F]|[\u30A0-\u30FF]|[\u4E00-\u9FAF]|[\uAC00-\uD7AF]/, - c = { - slant: [0.25, 0.25, 0.25], - space: [0, 0, 0], - stretch: [0, 0, 0], - shrink: [0, 0, 0], - xHeight: [0.431, 0.431, 0.431], - quad: [1, 1.171, 1.472], - extraSpace: [0, 0, 0], - num1: [0.677, 0.732, 0.925], - num2: [0.394, 0.384, 0.387], - num3: [0.444, 0.471, 0.504], - denom1: [0.686, 0.752, 1.025], - denom2: [0.345, 0.344, 0.532], - sup1: [0.413, 0.503, 0.504], - sup2: [0.363, 0.431, 0.404], - sup3: [0.289, 0.286, 0.294], - sub1: [0.15, 0.143, 0.2], - sub2: [0.247, 0.286, 0.4], - supDrop: [0.386, 0.353, 0.494], - subDrop: [0.05, 0.071, 0.1], - delim1: [2.39, 1.7, 1.98], - delim2: [1.01, 1.157, 1.42], - axisHeight: [0.25, 0.25, 0.25], - }, - h = { - defaultRuleThickness: 0.04, - bigOpSpacing1: 0.111, - bigOpSpacing2: 0.166, - bigOpSpacing3: 0.2, - bigOpSpacing4: 0.6, - bigOpSpacing5: 0.1, - ptPerEm: 10, - pxPerEm: 40 / 3, - doubleRuleSep: 0.2, - arraycolsep: 0.5, - baselineskip: 1.2, - arrayrulewidth: 0.04, - fboxsep: 0.3, - fboxrule: 0.04, - }, - d = { - ' ': ' ', - '​': ' ', - Å: 'A', - Ç: 'C', - Ð: 'D', - Þ: 'o', - å: 'a', - ç: 'c', - ð: 'd', - þ: 'o', - 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', - }; - function p(t, e, i) { - if ('string' == typeof t) { - const i = t.match(/([-+]?[0-9.]*)\s*([a-zA-Z]+)/); - i - ? ((t = parseFloat(i[1])), (e = i[2].toLowerCase())) - : (t = parseFloat(t)); - } - const s = - { - pt: 1, - mm: 7227 / 2540, - cm: 7227 / 254, - ex: 35271 / 8192, - px: 0.75, - em: h.ptPerEm, - bp: 1.00375, - dd: 1238 / 1157, - pc: 12, - in: 72.27, - mu: 10 / 18, - }[e] || 1; - if (isFinite(i)) { - const e = Math.pow(10, i); - return Math.round((t / h.ptPerEm) * s * e) / e; - } - return (t / h.ptPerEm) * s; - } - var m = { - toEm: p, - toPx: function(t, e) { - return p(t, e) * (4 / 3) * h.ptPerEm; - }, - METRICS: h, - SIGMAS: c, - getCharacterMetrics: function(t, e) { - const i = - { - cal: 'Caligraphic-Regular', - ams: 'AMS-Regular', - frak: 'Fraktur-Regular', - bb: 'AMS-Regular', - scr: 'Script-Regular', - cmr: 'Main-Regular', - cmtt: 'Typewriter-Regular', - cmss: 'SansSerif-Regular', - }[e] || e; - let s = t.charCodeAt(0); - t[0] in d - ? (s = d[t[0]].charCodeAt(0)) - : l.test(t[0]) && (s = 77); - const a = r[i][s]; - return a - ? a - ? { - depth: a[0], - height: a[1], - italic: a[2], - skew: a[3], - } - : null - : { - defaultMetrics: !0, - depth: 0.2, - height: 0.7, - italic: 0, - skew: 0, - }; - }, - }; - const u = [{}, {}, {}]; - let f; - for (const t in c) - if (Object.prototype.hasOwnProperty.call(c, t)) - for (f = 0; f < 3; f++) u[f][t] = c[t][f]; - for (f = 0; f < 3; f++) u[f].emPerEx = c.xHeight[f] / c.quad[f]; - class g { - constructor(t, e, i, s) { - (this.id = t), - (this.size = e), - (this.cramped = s), - (this.sizeMultiplier = i), - (this.metrics = u[e > 0 ? e - 1 : 0]); - } - sup() { - return y[k[this.id]]; - } - sub() { - return y[v[this.id]]; - } - fracNum() { - return y[w[this.id]]; - } - fracDen() { - return y[S[this.id]]; - } - cramp() { - return y[A[this.id]]; - } - cls() { - return b[this.size]; - } - adjustTo(t) { - let e = x[this.size][t.size]; - return e.length > 0 && (e = ' ' + e), e; - } - isTight() { - return this.size >= 2; - } - } - const y = [ - new g(0, 0, 1, !1), - new g(1, 0, 1, !0), - new g(2, 1, 1, !1), - new g(3, 1, 1, !0), - new g(4, 2, 0.7, !1), - new g(5, 2, 0.7, !0), - new g(6, 3, 0.5, !1), - new g(7, 3, 0.5, !0), - ], - b = [ - 'displaystyle textstyle', - 'textstyle', - 'scriptstyle', - 'scriptscriptstyle', - ], - x = [ - [ - '', - '', - 'reset-textstyle scriptstyle', - 'reset-textstyle scriptscriptstyle', - ], - [ - 'reset-textstyle displaystyle textstyle', - '', - 'reset-textstyle scriptstyle', - 'reset-textstyle scriptscriptstyle', - ], - [ - 'reset-scriptstyle textstyle displaystyle', - 'reset-scriptstyle textstyle', - '', - 'reset-scriptstyle scriptscriptstyle', - ], - [ - 'reset-scriptscriptstyle textstyle displaystyle', - 'reset-scriptscriptstyle textstyle', - 'reset-scriptscriptstyle scriptstyle', - '', - ], - ], - k = [4, 5, 4, 5, 6, 7, 6, 7], - v = [5, 5, 5, 5, 7, 7, 7, 7], - w = [2, 3, 4, 5, 6, 7, 6, 7], - S = [3, 3, 5, 5, 7, 7, 7, 7], - A = [1, 1, 3, 3, 5, 5, 7, 7]; - var M = { - DISPLAY: y[0], - TEXT: y[2], - SCRIPT: y[4], - SCRIPTSCRIPT: y[6], - toMathstyle: function(t) { - return t - ? 'object' == typeof t - ? t - : { - displaystyle: y[0], - textstyle: y[2], - scriptstyle: y[4], - scriptscriptstyle: y[6], - }[t] - : t; - }, - }; - class C { - constructor(t) { - (this.macros = t.macros || {}), - (this.generateID = !!t.generateID && t.generateID), - (this.mathstyle = M.toMathstyle( - t.mathstyle || 'displaystyle' - )), - (this.size = t.size || 'size5'), - (this.parentMathstyle = - t.parentMathstyle || this.mathstyle), - (this.parentSize = t.parentSize || this.size), - (this.opacity = t.opacity); - } - clone(t) { - const e = new C(this); - return ( - (e.parentMathstyle = this.mathstyle), - (e.parentSize = this.size), - (e.macros = this.macros), - t && - (('auto' !== t.mathstyle && t.mathstyle) || - delete t.mathstyle, - Object.assign(e, t), - 'string' == typeof t.mathstyle && - (e.mathstyle = M.toMathstyle(t.mathstyle))), - e - ); - } - setMathstyle(t) { - t && 'auto' !== t && (this.mathstyle = M.toMathstyle(t)); - } - cramp() { - return this.clone({ mathstyle: this.mathstyle.cramp() }); - } - sup() { - return this.clone({ mathstyle: this.mathstyle.sup() }); - } - sub() { - return this.clone({ mathstyle: this.mathstyle.sup() }); - } - } - var _ = C; - function T(t) { - let e = ''; - if ('number' == typeof t) e += Math.floor(100 * t) / 100; - else if ('string' == typeof t) e += t; - else if (Array.isArray(t)) for (const i of t) e += T(i); - else t && (e += t.toString()); - return e; - } - class L { - constructor(t, e) { - (this.classes = e || ''), - Array.isArray(t) - ? (this.children = [].concat.apply([], t)) - : 'string' == typeof t - ? (this.body = t) - : t && 'object' == typeof t && (this.children = [t]), - (this.style = null), - this.updateDimensions(); - } - updateDimensions() { - let t = 0, - e = 0, - i = 1; - this.children && - this.children.forEach(s => { - s.height > t && (t = s.height), - s.depth > e && (e = s.depth), - s.maxFontSize > i && (i = s.maxFontSize); - }), - (this.height = t), - (this.depth = e), - (this.maxFontSize = i); - } - selected(t) { - t && - !/ML__selected/.test(this.classes) && - (this.classes.length > 0 && (this.classes += ' '), - (this.classes += 'ML__selected')), - !t && - /ML__selected/.test(this.classes) && - (this.classes = this.classes.replace( - 'ML__selected', - '' - )), - this.children && this.children.forEach(e => e.selected(t)); - } - applyStyle(t) { - if (!t) return; - if ( - (t.color && - ('none' !== t.color - ? this.setStyle('color', t.color) - : this.setStyle('color', '')), - t.backgroundColor && - ('none' !== t.backgroundColor - ? this.setStyle( - 'background-color', - t.backgroundColor - ) - : this.setStyle('background-color', '')), - t.cssClass && (this.classes += ' ' + t.cssClass), - !this.body) - ) - return; - let e = t.fontFamily; - 'math' === e && 'n' === t.fontShape && (e = 'cmr'); - let i = 'Main-Regular'; - if ( - (e && - (i = (function(t, e) { - if ( - 'string' != typeof t || - t.length > 1 || - '​' === t - ) - return R[e]; - if ('bb' === e || 'scr' === e) { - if (!/^[A-Z ]$/.test(t)) return null; - } else if ('cal' === e) { - if (!/^[0-9A-Z ]$/.test(t)) return null; - } else if ('frak' === e) { - if ( - !/^[0-9A-Za-z ]$|^[!"#$%&'()*+,\-./:;=?[]^’‘]$/.test( - t - ) - ) - return null; - } else if ( - ('cmtt' === e || 'cmss' === e) && - !/^[0-9A-Za-z ]$|^[!"&'()*+,\-./:;=?@[]^_~\u0131\u0237\u0393\u0394\u0398\u039b\u039e\u03A0\u03A3\u03A5\u03A8\u03a9’‘]$/.test( - t - ) - ) - return null; - return R[e]; - })(this.body, e)), - t.fontShape && - (this.classes += - ' ' + - ({ - it: 'ML__it', - sl: 'ML__shape_sl', - sc: 'ML__shape_sc', - ol: 'ML__shape_ol', - }[t.fontShape] || '')), - t.fontSeries) - ) { - const e = t.fontSeries.match(/(.?[lbm])?(.?[cx])?/); - e && - ((this.classes += - ' ' + - ({ - ul: 'ML__series_ul', - el: 'ML__series_el', - l: 'ML__series_l', - sl: 'ML__series_sl', - m: '', - sb: 'ML__series_sb', - b: 'ML__bold', - eb: 'ML__series_eb', - ub: 'ML__series_ub', - }[e[1] || ''] || '')), - (this.classes += - ' ' + - ({ - uc: 'ML__series_uc', - ec: 'ML__series_ec', - c: 'ML__series_c', - sc: 'ML__series_sc', - n: '', - sx: 'ML__series_sx', - x: 'ML__series_x', - ex: 'ML__series_ex', - ux: 'ML__series_ux', - }[e[2] || ''] || ''))); - } - if ( - (K[e] - ? (this.classes += ' ' + K[e]) - : e && this.setStyle('font-family', e), - this.body && this.body.length > 0 && i) - ) { - (this.height = 0), - (this.depth = 0), - (this.maxFontSize = - { - size1: 0.5, - size2: 0.7, - size3: 0.8, - size4: 0.9, - size5: 1, - size6: 1.2, - size7: 1.44, - size8: 1.73, - size9: 2.07, - size10: 2.49, - }[t.fontSize] || 1), - (this.skew = 0), - (this.italic = 0); - for (let t = 0; t < this.body.length; t++) { - const e = m.getCharacterMetrics(this.body.charAt(t), i); - e && - ((this.height = Math.max(this.height, e.height)), - (this.depth = Math.max(this.depth, e.depth)), - (this.skew = e.skew), - (this.italic = e.italic)); - } - } - } - setStyle(t, ...e) { - const i = T(e); - i.length > 0 && - (this.style || (this.style = {}), (this.style[t] = i)); - } - setTop(t) { - t && - 0 !== t && - (this.style || (this.style = {}), - (this.style.top = T(t) + 'em'), - (this.height -= t), - (this.depth += t)); - } - setLeft(t) { - t && - 0 !== t && - (this.style || (this.style = {}), - (this.style['margin-left'] = T(t) + 'em')); - } - setRight(t) { - t && - 0 !== t && - (this.style || (this.style = {}), - (this.style['margin-right'] = T(t) + 'em')); - } - setWidth(t) { - t && - 0 !== t && - (this.style || (this.style = {}), - (this.style.width = T(t) + 'em')); - } - addMarginRight(t) { - if (t && 0 !== t) { - if ( - !this.style && - !/qquad|quad|enspace|thickspace|mediumspace|thinspace|negativethinspace/.test( - this.classes - ) - ) { - const e = { - 2: 'qquad', - 1: 'quad', - '.5': 'enspace', - 0.277778: 'thickspace', - 0.222222: 'mediumspace', - 0.166667: 'thinspace', - '-0.166667': 'negativethinspace', - }[t.toString()]; - if (e) return void (this.classes += ' rspace ' + e); - } - this.style || (this.style = {}); - const e = parseFloat(this.style['margin-right'] || '0'); - this.style['margin-right'] = T(e + t) + 'em'; - } - } - toMarkup(t, e) { - (t = t || 0), (e = e || 1); - let i = '', - s = this.body || ''; - if (this.children) { - let t = 'none'; - for (const i of this.children) { - let a = 0; - if (t) { - let s = i.type; - s && - ('textord' === s && (s = 'mord'), - 'first' === s && (s = 'none'), - (a = i.isTight - ? E[t + '+' + s] || 0 - : F[t + '+' + s] || 0), - (a = Math.floor(e * a))); - } - (s += i.toMarkup(a, e)), (t = q(i)); - } - } - if ( - ('​' !== s && s) || - (this.classes && 'ML__selected' !== this.classes) - ) { - if ( - ((i = ' 1 - ? e - .filter(function(t, e, i) { - return ( - t.length > 0 && i.indexOf(t) === e - ); - }) - .join(' ') - : e[0]), - a.length > 0 && (i += ' class="' + a + '"'), - t && - (this.style && this.style['margin-left'] - ? (this.style['margin-left'] = - T( - parseFloat( - this.style['margin-left'] - ) + - t / 18 - ) + 'em') - : t < 0 && z[-t] - ? (s = z[-t] + s) - : D[t] - ? (s = D[t] + s) - : (this.style || (this.style = {}), - (this.style['margin-left'] = - T(t / 18) + 'em'))), - this.style) - ) { - let t = ''; - const e = /ML__selected/.test(this.classes); - for (const i in this.style) - Object.prototype.hasOwnProperty.call( - this.style, - i - ) && - (('background-color' === i && e) || - (t += i + ':' + this.style[i] + ';')); - t.length > 0 && (i += ' style="' + t + '"'); - } - (i += '>'), - this.svgOverlay - ? 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Y('\\rmoustache', '', pt, '⎱', j), - bt(['\\middle'], '{:delim}', null, function(t, e) { - return { type: 'delim', delim: e[0] }; - }), - (W = 'Sizing'); - const xt = { - '\\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 }, - }; - function kt(t) { - let e = '', - i = !0; - for (const s of t) - 'string' == typeof s.body ? 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Y('\\doublebarwedge', nt, ct, '⩞', 5), - Y('\\divideontimes', nt, ct, '⋇', 51), - Y('\\cdot', '', ct, '⋅', j), - (W = 'Others'), - Y('\\infty', '', lt, '∞', Z), - Y('\\prime', '', rt, '′', Z), - Y('\\doubleprime', '', lt, '″'), - Y('\\angle', '', lt, '∠', G), - Y('`', '', lt, '‘'), - Y('\\$', '', lt, '$'), - Y('\\%', '', lt, '%'), - Y('\\_', '', lt, '_'), - (W = 'Greek'), - Y('\\alpha', '', rt, 'α', G), - Y('\\beta', '', rt, 'β', G), - Y('\\gamma', '', rt, 'γ', G), - Y('\\delta', '', rt, 'δ', G), - Y('\\epsilon', '', rt, 'ϵ', G), - Y('\\varepsilon', '', rt, 'ε'), - Y('\\zeta', '', rt, 'ζ', G), - Y('\\eta', '', rt, 'η', G), - Y('\\theta', '', rt, 'θ', G), - Y('\\vartheta', '', rt, 'ϑ', G), - Y('\\iota', '', rt, 'ι', G), - Y('\\kappa', '', rt, 'κ', G), - Y('\\varkappa', nt, rt, 'ϰ', G), - Y('\\lambda', '', rt, 'λ', G), - Y('\\mu', '', rt, 'μ', G), - Y('\\nu', '', rt, 'ν', G), - Y('\\xi', '', rt, 'ξ', G), - Y('\\omicron', '', rt, 'o'), - Y('\\pi', '', rt, 'π', G), - Y('\\varpi', '', rt, 'ϖ', G), - Y('\\rho', '', rt, 'ρ', G), - Y('\\varrho', '', rt, 'ϱ', G), - Y('\\sigma', '', rt, 'σ', G), - Y('\\varsigma', '', rt, 'ς', G), - Y('\\tau', '', rt, 'τ', G), - Y('\\phi', '', rt, 'ϕ', G), - Y('\\varphi', '', rt, 'φ', G), - Y('\\upsilon', '', rt, 'υ', G), - Y('\\chi', '', rt, 'χ', G), - Y('\\psi', '', rt, 'ψ', G), - Y('\\omega', '', rt, 'ω', G), - Y('\\Gamma', '', rt, 'Γ', G), - Y('\\Delta', '', rt, 'Δ', G), - Y('\\Theta', '', rt, 'Θ', G), - Y('\\Lambda', '', rt, 'Λ', G), - Y('\\Xi', '', rt, 'Ξ', G), - Y('\\Pi', '', rt, 'Π', G), - Y('\\Sigma', '', rt, 'Σ', G), - Y('\\Upsilon', '', rt, 'Υ', G), - Y('\\Phi', '', rt, 'Φ', G), - Y('\\Psi', '', rt, 'Ψ', G), - Y('\\Omega', '', rt, 'Ω', G), - Y('\\digamma', nt, rt, 'ϝ', 248), - (W = 'Others'), - Y('\\emptyset', '', lt, '∅', Z), - Y('\\varnothing', nt, lt, '∅', Z), - (W = 'Set Operators'), - Y('\\cap', '', ct, '∩', Z), - Y('\\cup', '', ct, '∪', Z), - Y('\\setminus', '', ct, '∖', G), - Y('\\smallsetminus', nt, ct, '∖', 254), - Y('\\complement', nt, lt, '∁', 200), - (W = 'Set Relations'), - Y('\\in', '', ht, '∈', Z), - Y('\\notin', '', ht, '∉', Z), - Y('\\not', '', ht, '̸', G), - Y('\\ni', '', ht, '∋', G), - Y('\\owns', '', ht, '∋', 18), - Y('\\subset', '', ht, '⊂', Z), - Y('\\supset', '', ht, '⊃', Z), - Y('\\subseteq', '', ht, '⊆', Z), - Y('\\supseteq', '', ht, '⊇', Z), - Y('\\subsetneq', nt, ht, '⊊', 1945), - Y('\\varsubsetneq', nt, ht, '', 198), - Y('\\subsetneqq', nt, ht, '⫋', 314), - Y('\\varsubsetneqq', nt, ht, '', 55), - Y('\\nsubset', nt, ht, '⊄', j), - Y('\\nsupset', nt, ht, '⊅', j), - Y('\\nsubseteq', nt, ht, '⊈', 950), - Y('\\nsupseteq', nt, ht, '⊉', 49), - (W = 'Spacing'), - Y('\\ ', '', mt, ' '), - Y('~', '', mt, ' '), - Y('\\space', '', mt, ' '), - Y('\\!', '', mt, null), - Y('\\,', '', mt, null), - Y('\\:', '', mt, null), - Y('\\;', '', mt, null), - Y('\\enskip', '', mt, null), - Y('\\enspace', '', mt, null, 672), - Y('\\quad', '', mt, null, G), - Y('\\qquad', '', mt, null, G), - bt( - ['\\hspace', '\\hspace*'], - '{width:skip}', - { allowedInText: !0 }, - function(t, e) { - return { type: 'spacing', width: e[0] || 0 }; - } - ), - bt( - [ - '\\mathop', - '\\mathbin', - '\\mathrel', - '\\mathopen', - '\\mathclose', - '\\mathpunct', - '\\mathord', - '\\mathinner', - ], - '{:auto}', - null, - function(t, e) { - const i = { - type: { - '\\mathop': 'mop', - '\\mathbin': 'mbin', - '\\mathrel': 'mrel', - '\\mathopen': 'mopen', - '\\mathclose': 'mclose', - '\\mathpunct': 'mpunct', - '\\mathord': 'mord', - '\\mathinner': 'minner', - }[t], - body: kt(e[0]) || e[0], - captureSelection: !0, - baseFontFamily: '\\mathop' === t ? 'math' : '', - }; - return ( - '\\mathop' === t && - ((i.limits = 'nolimits'), (i.isFunction = !0)), - i - ); - } - ), - bt( - ['\\operatorname', '\\operatorname*'], - '{operator:math}', - null, - function(t, e) { - const i = { - type: 'mop', - skipBoundary: !0, - body: e[0], - isFunction: !0, - }; - return ( - i.body.forEach(t => { - (t.isFunction = !1), (t.autoFontFamily = 'cmr'); - }), - '\\operatorname' === t - ? (i.limits = 'nolimits') - : '\\operatorname*' === t && (i.limits = 'limits'), - i - ); - } - ), - (W = 'Punctuation'), - Y('\\colon', '', 'mpunct', ':', G), - Y('\\cdotp', '', 'mpunct', '⋅', G), - Y('\\ldots', '', 'minner', '…', G), - Y('\\cdots', '', 'minner', '⋯', G), - Y('\\ddots', '', 'minner', '⋱', G), - Y('\\mathellipsis', '', 'minner', '…', 91), - Y('\\vdots', '', lt, '⋮', G), - Y('\\ldotp', '', 'mpunct', '.', 18), - Y(',', '', 'mpunct', ','), - Y(';', '', 'mpunct', ';'), - (W = 'Logical Operators'), - Y('\\wedge', '', ct, '∧', Z), - Y('\\vee', '', ct, '∨', Z), - Y('\\lnot', '', lt, '¬', G), - Y('\\neg', '', lt, '¬', Z), - Y('\\land', '', ct, '∧', 659), - Y('\\lor', '', ct, '∨', 364), - Y('\\barwedge', nt, ct, '⊼', 21), - Y('\\veebar', nt, ct, '⊻', 43), - Y('\\nor', nt, ct, '⊻', 7), - Y('\\curlywedge', nt, ct, '⋏', 58), - Y('\\curlyvee', nt, ct, '⋎', 57), - (W = 'Boxes'), - Y('\\square', nt, lt, '□', G), - Y('\\Box', nt, lt, '□', G), - Y('\\blacksquare', nt, lt, '■', 1679), - Y('\\boxminus', nt, ct, '⊟', 79), - Y('\\boxplus', nt, ct, '⊞', 276), - Y('\\boxtimes', nt, ct, '⊠', 457), - Y('\\boxdot', nt, ct, '⊡', 120), - (W = 'Circles'), - Y('\\circ', '', ct, '∘', Z), - Y('\\bigcirc', '', ct, '◯', 903), - Y('\\bullet', '', ct, '∙', G), - Y('\\circleddash', nt, ct, '⊝', G), - Y('\\circledast', nt, ct, '⊛', 339), - Y('\\oplus', '', ct, '⊕', G), - Y('\\ominus', '', ct, '⊖', 1568), - Y('\\otimes', '', ct, '⊗', G), - Y('\\odot', '', ct, '⊙', G), - Y('\\circledcirc', nt, ct, '⊚', 93), - Y('\\oslash', '', ct, '⊘', 497), - Y('\\circledS', nt, lt, 'Ⓢ', 31), - Y('\\circledR', nt, lt, '®', 1329), - (W = 'Triangles'), - Y('\\triangle', '', lt, '△', G), - Y('\\triangleq', nt, ht, '≜', G), - Y('\\bigtriangleup', '', ct, '△', 1773), - Y('\\vartriangle', nt, ht, '△', 762), - Y('\\triangledown', nt, lt, '▽', 520), - Y('\\bigtriangledown', '', ct, '▽', 661), - Y('\\triangleleft', '', ct, '◃', 534), - Y('\\vartriangleleft', nt, ht, '⊲', 281), - Y('\\trianglelefteq', nt, ht, '⊴', 176), - Y('\\ntriangleleft', nt, ht, '⋪', 13), - Y('\\ntrianglelefteq', nt, ht, '⋬', 22), - Y('\\triangleright', '', ct, '▹', 516), - Y('\\vartriangleright', nt, ht, '⊳', 209), - Y('\\trianglerighteq', nt, ht, '⊵', 45), - Y('\\ntriangleright', nt, ht, '⋫', 15), - Y('\\ntrianglerighteq', nt, ht, '⋭', 6), - Y('\\blacktriangle', nt, lt, '▲', 360), - Y('\\blacktriangledown', nt, lt, '▼', 159), - Y('\\blacktriangleleft', nt, ht, '◀', 101), - Y('\\blacktriangleright', nt, ht, '▶', 271), - (W = 'Others'), - Y('\\/', '', rt, '/'), - Y('|', '', 'textord', '∣'), - (W = 'Big Operators'), - Y('\\sqcup', '', ct, '⊔', 1717), - Y('\\sqcap', '', ct, '⊓', 735), - Y('\\uplus', '', ct, '⊎', 597), - Y('\\wr', '', ct, '≀', 286), - Y('\\Cap', nt, ct, '⋒', 2), - Y('\\Cup', nt, ct, '⋓', 2), - Y('\\doublecap', nt, ct, '⋒', 1), - Y('\\doublecup', nt, ct, '⋓', 1), - Y('\\amalg', '', ct, '⨿', j), - Y('\\And', '', ct, '&'), - (W = 'Accents'), - bt( - [ - '\\acute', - '\\grave', - '\\dot', - '\\ddot', - '\\mathring', - '\\tilde', - '\\bar', - '\\breve', - '\\check', - '\\hat', - '\\vec', - ], - '{body:auto}', - null, - function(t, e) { - return { - type: 'accent', - accent: { - '\\acute': 'ˊ', - '\\grave': 'ˋ', - '\\dot': '˙', - '\\ddot': '¨', - '\\mathring': '˚', - '\\tilde': '~', - '\\bar': 'ˉ', - '\\breve': '˘', - '\\check': 'ˇ', - '\\hat': '^', - '\\vec': '⃗', - }[t], - limits: 'accent', - skipBoundary: !0, - body: e[0], - }; - } - ), - J(G, '\\bar', '\\ddot', '\\acute', '\\tilde', '\\check'), - J(1548, '\\breve'), - J(735, '\\grave'), - J(Z, '\\vec'), - (W = 'Letters and Letter Like Forms'), - Y('\\imath', '', lt, 'ı'), - Y('\\jmath', '', lt, 'ȷ'), - (W = 'Others'), - Y('\\degree', '', lt, '°', 46), - (W = 'Others'), - Y("'", '', lt, '′'), - Y('"', '', lt, '”'), - (W = 'Others'), - bt('\\^', '{:string}', { allowedInText: !0 }, function(t, e) { - return { - type: 'mord', - limits: 'nolimits', - symbol: !0, - isFunction: !1, - body: - (e[0] && - { - a: 'â', - e: 'ê', - i: 'î', - o: 'ô', - u: 'û', - A: 'Â', - E: 'Ê', - I: 'Î', - O: 'Ô', - U: 'Û', - }[e[0]]) || - '^', - baseFontFamily: 'cmr', - }; - }), - bt('\\`', '{:string}', { allowedInText: !0 }, function(t, e) { - return { - type: 'mord', - limits: 'nolimits', - symbol: !0, - isFunction: !1, - body: - (e[0] && - { - a: 'à', - e: 'è', - i: 'ì', - o: 'ò', - u: 'ù', - A: 'À', - E: 'È', - I: 'Ì', - O: 'Ò', - U: 'Ù', - }[e[0]]) || - '`', - baseFontFamily: 'cmr', - }; - }), - bt("\\'", '{:string}', { allowedInText: !0 }, function(t, e) { - return { - type: 'mord', - limits: 'nolimits', - symbol: !0, - isFunction: !1, - body: - (e[0] && - { - a: 'á', - e: 'é', - i: 'í', - o: 'ó', - u: 'ú', - A: 'Á', - E: 'É', - I: 'Í', - O: 'Ó', - U: 'Ú', - }[e[0]]) || - '^', - baseFontFamily: 'cmr', - }; - }), - bt('\\~', '{:string}', { allowedInText: !0 }, function(t, e) { - return { - type: 'mord', - limits: 'nolimits', - symbol: !0, - isFunction: !1, - body: - (e[0] && - { n: 'ñ', N: 'Ñ', a: 'ã', o: 'õ', A: 'Ã', O: 'Õ' }[ - e[0] - ]) || - '´', - baseFontFamily: 'cmr', - }; - }), - bt('\\c', '{:string}', { allowedInText: !0 }, function(t, e) { - return { - type: 'mord', - limits: 'nolimits', - symbol: !0, - isFunction: !1, - body: (e[0] && { c: 'ç', C: 'Ç' }[e[0]]) || '', - baseFontFamily: 'cmr', - }; - }); - const vt = { - '\\#': '#', - '\\&': '&', - '\\$': '$', - '\\%': '%', - '\\_': '_', - '\\euro': '€', - '\\maltese': '✠', - '\\{': '{', - '\\}': '}', - '\\nobreakspace': ' ', - '\\ldots': '…', - '\\textellipsis': '…', - '\\backslash': '\\', - '`': '‘', - "'": '’', - '``': '“', - "''": '”', - '\\degree': '°', - '\\textasciicircum': '^', - '\\textasciitilde': '~', - '\\textasteriskcentered': '*', - '\\textbackslash': '\\', - '\\textbraceleft': '{', - '\\textbraceright': '}', - '\\textbullet': '•', - '\\textdollar': '$', - '\\textsterling': '£', - '–': '–', - '—': '—', - '‘': '‘', - '’': '’', - '“': '“', - '”': '”', - '"': '”', - '\\ss': 'ß', - '\\ae': 'æ', - '\\oe': 'œ', - '\\AE': 'Æ', - '\\OE': 'Œ', - '\\O': 'Ø', - '\\i': 'ı', - '\\j': 'ȷ', - '\\aa': 'å', - '\\AA': 'Å', - }, - wt = - 'undefined' != typeof navigator && - /firefox|edge/i.test(navigator.userAgent) - ? /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/ - : new RegExp('\\p{Letter}', 'u'), - St = - 'undefined' != typeof navigator && - /firefox|edge/i.test(navigator.userAgent) - ? /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/ - : new RegExp('[0-9\\p{Letter}]', 'u'); - var At = { - matchCodepoint: et, - commandAllowed: function(t, e) { - return ( - !(!V[e] || ('text' === t && !V[e].allowedInText)) || - !!{ text: vt, math: H }[t][e] - ); - }, - unicodeToMathVariant: at, - mathVariantToUnicode: function(t, e, i) { - if (!/[A-Za-z0-9]/.test(t)) return t; - if (!e && !i) return t; - const s = t.codePointAt(0); - for (let t = 0; t < st.length; t++) - if ( - (!e || st[t].variant === e) && - (!i || st[t].style === i) && - s >= st[t].offset && - s < st[t].offset + st[t].len - ) { - const e = st[t].start + s - st[t].offset; - return String.fromCodePoint(it[e] || e); - } - return t; - }, - unicodeStringToLatex: function(t, e) { - let i = ''; - for (const s of e) i += ot(t, s.codePointAt(0)); - return i; - }, - getInfo: function(t, e, i) { - if (0 === t.length) return null; - let s = null; - if ('\\' === t.charAt(0)) { - if (((s = V[t]), s)) - return 'math' === e || s.allowedInText ? s : null; - if ( - (s || - ('math' === e - ? (s = H[t]) - : vt[t] && (s = { value: vt[t] })), - !s) - ) { - const e = t.slice(1); - if (i && i[e]) { - let t = i[e]; - 'object' == typeof t && (t = t.def); - let a = 0; - for ( - /(^|[^\\])#1/.test(t) && (a = 1), - /(^|[^\\])#2/.test(t) && (a = 2), - /(^|[^\\])#3/.test(t) && (a = 3), - /(^|[^\\])#4/.test(t) && (a = 4), - /(^|[^\\])#5/.test(t) && (a = 5), - /(^|[^\\])#6/.test(t) && (a = 6), - /(^|[^\\])#7/.test(t) && (a = 7), - /(^|[^\\])#8/.test(t) && (a = 8), - /(^|[^\\])#9/.test(t) && (a = 9), - s = { - type: 'group', - allowedInText: !1, - params: [], - infix: !1, - }; - a >= 1; - - ) - s.params.push({ - optional: !1, - type: 'math', - defaultValue: null, - placeholder: null, - }), - (a -= 1); - } - } - } else - 'math' === e ? (s = H[t]) : vt[t] && (s = { value: vt[t] }); - return ( - !s || - 'mord' !== s.type || - ('f' !== s.value && - 'g' !== s.value && - 'h' !== s.value) || - (s.isFunction = !0), - s - ); - }, - getValue: function(t, e) { - return 'math' === t - ? H[e] && H[e].value - ? H[e].value - : e - : vt[e] - ? vt[e] - : e; - }, - getEnvironmentInfo: function(t) { - let e = U[t]; - return ( - e || - (e = { - params: '', - parser: null, - mathstyle: 'displaystyle', - tabular: !0, - colFormat: [], - lFence: '.', - rFence: '.', - }), - e - ); - }, - suggest: function(t) { - if (t.length <= 1) return []; - const e = []; - for (const i in V) - Object.prototype.hasOwnProperty.call(V, i) && - i.startsWith(t) && - !V[i].infix && - e.push({ match: i, frequency: V[i].frequency }); - for (const i in H) - Object.prototype.hasOwnProperty.call(H, i) && - i.startsWith(t) && - e.push({ match: i, frequency: H[i].frequency }); - return ( - e.sort((t, e) => - t.frequency === e.frequency - ? t.match.length - e.match.length - : (e.frequency || 0) - (t.frequency || 0) - ), - e - ); - }, - FREQUENCY_VALUE: X, - TEXT_SYMBOLS: vt, - MATH_SYMBOLS: H, - ENVIRONMENTS: U, - 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', - }, - FUNCTIONS: V, - MACROS: { - iff: '\\;⟺\\;', - nicefrac: '^{#1}\\!\\!/\\!_{#2}', - 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', - }, - COMMAND_MODE_CHARACTERS: /[a-zA-Z0-9!@*()-=+{}[\]\\';:?/.,~<>`|'$%#&^_" ]/, - LETTER: wt, - LETTER_AND_DIGITS: St, - }; - const Mt = N.makeSymbol, - Ct = N.makeSpan, - _t = N.makeVlist; - function Tt(t, e, i, s, a, o) { - const n = Mt('Size' + i + '-Regular', At.getValue('math', e)), - r = N.makeStyleWrap( - t, - Ct(n, 'delimsizing size' + i), - a.mathstyle, - M.TEXT, - o - ); - return ( - s && - r.setTop( - (1 - a.mathstyle.sizeMultiplier) * - a.mathstyle.metrics.axisHeight - ), - r.setStyle('color', a.color), - 'number' == typeof a.opacity && - r.setStyle('opacity', a.opacity), - r - ); - } - function Lt(t, e) { - let i = ''; - return ( - 'Size1-Regular' === e - ? (i = ' delim-size1') - : 'Size4-Regular' === e && (i = ' delim-size4'), - Ct(Mt(e, At.getValue('math', t)), 'delimsizinginner' + i) - ); - } - function Ft(t, e, i, s, a, o) { - let n, r, l, c; - (n = l = c = At.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 = ' ')) - : '\\urcorner' === e - ? ((n = '┐'), (l = c = ' ')) - : '\\llcorner' === e - ? ((c = '└'), (l = n = ' ')) - : '\\lrcorner' === e && ((n = '┘'), (l = n = ' ')); - const d = m.getCharacterMetrics(At.getValue('math', n), h), - p = d.height + d.depth, - u = m.getCharacterMetrics(At.getValue('math', l), h), - f = u.height + u.depth, - g = m.getCharacterMetrics(At.getValue('math', c), h), - y = g.height + g.depth; - let b = 0, - x = 1; - if (null !== r) { - const t = m.getCharacterMetrics(At.getValue('math', r), h); - (b = t.height + t.depth), (x = 2); - } - const k = p + y + b, - v = Math.ceil((i - k) / (x * f)), - w = k + v * x * f; - let S = a.mathstyle.metrics.axisHeight; - s && (S *= a.mathstyle.sizeMultiplier); - const A = w / 2 - S, - C = []; - if ((C.push(Lt(c, h)), null === r)) - for (let t = 0; t < v; t++) C.push(Lt(l, h)); - else { - for (let t = 0; t < v; t++) C.push(Lt(l, h)); - C.push(Lt(r, h)); - for (let t = 0; t < v; t++) C.push(Lt(l, h)); - } - C.push(Lt(n, h)); - const _ = _t(a, C, 'bottom', A); - return ( - _.setStyle('color', a.color), - 'number' == typeof a.opacity && - _.setStyle('opacity', a.opacity), - N.makeStyleWrap( - t, - Ct(_, 'delimsizing mult'), - a.mathstyle, - M.TEXT, - o - ) - ); - } - const Dt = [ - '(', - ')', - '[', - '\\lbrack', - ']', - '\\rbrack', - '\\{', - '\\lbrace', - '\\}', - '\\rbrace', - '\\lfloor', - '\\rfloor', - '\\lceil', - '\\rceil', - '\\surd', - ], - zt = [ - '\\uparrow', - '\\downarrow', - '\\updownarrow', - '\\Uparrow', - '\\Downarrow', - '\\Updownarrow', - '|', - '\\|', - '\\vert', - '\\Vert', - '\\lvert', - '\\rvert', - '\\lVert', - '\\rVert', - '\\mvert', - '\\mid', - '\\lgroup', - '\\rgroup', - '\\lmoustache', - '\\rmoustache', - ], - Et = [ - '<', - '>', - '\\langle', - '\\rangle', - '/', - '\\backslash', - '\\lt', - '\\gt', - ], - qt = [0, 1.2, 1.8, 2.4, 3], - It = [ - { type: 'small', mathstyle: M.SCRIPTSCRIPT }, - { type: 'small', mathstyle: M.SCRIPT }, - { type: 'small', mathstyle: M.TEXT }, - { type: 'large', size: 1 }, - { type: 'large', size: 2 }, - { type: 'large', size: 3 }, - { type: 'large', size: 4 }, - ], - Pt = [ - { type: 'small', mathstyle: M.SCRIPTSCRIPT }, - { type: 'small', mathstyle: M.SCRIPT }, - { type: 'small', mathstyle: M.TEXT }, - { type: 'stack' }, - ], - Ot = [ - { type: 'small', mathstyle: M.SCRIPTSCRIPT }, - { type: 'small', mathstyle: M.SCRIPT }, - { type: 'small', mathstyle: M.TEXT }, - { type: 'large', size: 1 }, - { type: 'large', size: 2 }, - { type: 'large', size: 3 }, - { type: 'large', size: 4 }, - { type: 'stack' }, - ]; - function Bt(t, e, i, s, a, o) { - if (!e || 0 === e.length || '.' === e) return $t(t, a, t); - let n; - '<' === e || '\\lt' === e - ? (e = '\\langle') - : ('>' !== e && '\\gt' !== e) || (e = '\\rangle'), - (n = Et.includes(e) ? It : Dt.includes(e) ? Ot : Pt); - 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: M.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]; - })(At.getValue('math', e), i, n, a); - return 'small' === r.type - ? (function(t, e, i, s, a, o) { - const n = Mt('AMS-Regular', At.getValue('math', e)), - r = N.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 - ? Tt(t, e, r.size, s, a, o) - : Ft(t, e, i, s, a, o); - } - function $t(t, e, i) { - return N.makeSpanOfType( - t, - '', - 'sizing' + - e.mathstyle.adjustTo(M.TEXT) + - ' nulldelimiter ' + - (i || '') - ); - } - var Rt = { - makeSizedDelim: function(t, e, i, s, a) { - return '.' === e - ? $t(t, s, a) - : ('<' === e || '\\lt' === e - ? (e = '\\langle') - : ('>' !== e && '\\gt' !== e) || (e = '\\rangle'), - Dt.includes(e) || Et.includes(e) - ? Tt(t, e, i, !1, s, a) - : zt.includes(e) - ? Ft(t, e, qt[i], !1, s, a) - : null); - }, - makeCustomSizedDelim: Bt, - makeLeftRightDelim: function(t, e, i, s, a, o) { - if ('.' === e) return $t(t, a, o); - const n = - a.mathstyle.metrics.axisHeight * - a.mathstyle.sizeMultiplier, - r = 5 / m.METRICS.ptPerEm; - let l = s + n, - c = i - n; - c = Math.max(l, c); - let h = (901 * c) / 500; - return ( - (l = 2 * c - r), (h = Math.max(h, l)), Bt(t, e, h, !0, a, o) - ); - }, - }; - const Kt = N.makeSpan, - Nt = N.makeOrd, - Wt = N.makeInner, - Ht = N.makeHlist, - Vt = N.makeVlist, - Ut = /\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5/, - jt = /^([A-Za-z]|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)$/, - Gt = { - size1: 0.5, - size2: 0.7, - size3: 0.8, - size4: 0.9, - size5: 1, - size6: 1.2, - size7: 1.44, - size8: 1.73, - size9: 2.07, - size10: 2.49, - }; - class Zt { - 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 = Gt[this.fontSize]), - 'math' === this.mode) - ) { - const t = 'string' == typeof this.body ? this.body : ''; - (this.autoFontFamily = 'cmr'), - jt.test(t) - ? (this.autoFontFamily = 'math') - : /\\imath|\\jmath|\\pounds/.test(t) - ? (this.autoFontFamily = 'mainit') - : Ut.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 = Nt(Qt(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 = M.toMathstyle(this.mathstyle) || t.mathstyle, - o = (this.arraystretch || 1) * h.baselineskip, - n = 0.7 * o, - r = 0.3 * o; - let l = 0, - c = 0; - const d = [], - p = i.length; - for (let e = 0; e < p; ++e) { - const s = i[e]; - c = Math.max(c, s.length); - let a = n, - o = r; - const h = []; - for (let e = 0; e < s.length; ++e) { - const i = - Qt( - t.clone({ mathstyle: this.mathstyle }), - s[e] - ) || [], - n = [Nt(null)].concat(i); - (o = Math.max(o, N.depth(n))), - (a = Math.max(a, N.height(n))), - h.push(n); - } - let m = e === p - 1 ? 0 : this.jot || 0; - this.rowGaps && - this.rowGaps[e] && - ((m = this.rowGaps[e]), - m > 0 && ((m += r), o < m && (o = m), (m = 0))), - (h.height = a), - (h.depth = o), - (l += a), - (h.pos = l), - (l += o + m), - d.push(h); - } - const m = l / 2 + a.metrics.axisHeight, - u = []; - for (let e = 0; e < c; e++) { - const i = []; - for (const t of d) { - const s = t[e]; - s && - ((s.depth = t.depth), - (s.height = t.height), - i.push(s), - i.push(t.pos - m)); - } - i.length > 0 && u.push(Vt(t, i, 'individualShift')); - } - const f = []; - let g = !1, - y = !1, - b = 0, - x = !this.lFence; - for (const i of e) { - if (i.align && b >= u.length) break; - if (i.align && b < u.length) - g - ? f.push(Xt(2 * h.arraycolsep)) - : (y || x) && f.push(Xt(h.arraycolsep)), - f.push(Kt(u[b], 'col-align-' + i.align)), - b++, - (g = !0), - (y = !1), - (x = !1); - else if (void 0 !== i.gap) - 'number' == typeof i.gap - ? f.push(Xt(i.gap)) - : f.push(Jt(t, d, m, i.gap)), - (g = !1), - (y = !1), - (x = !1); - else if (i.rule) { - const e = Kt(null, 'vertical-separator'); - e.setStyle('height', l, 'em'), - e.setStyle( - 'margin-top', - 3 * t.mathstyle.metrics.axisHeight - m, - 'em' - ), - e.setStyle('vertical-align', 'top'); - let i = 0; - y - ? (i = h.doubleRuleSep - h.arrayrulewidth) - : g && (i = h.arraycolsep - h.arrayrulewidth), - e.setLeft(i, 'em'), - f.push(e), - (g = !1), - (y = !0), - (x = !1); - } - } - if ( - (g && !this.rFence && f.push(Xt(h.arraycolsep)), - !( - (this.lFence && '.' !== this.lFence) || - (this.rFence && '.' !== this.rFence) - )) - ) - return Nt(f, 'mtable'); - const k = Kt(f, 'mtable'), - v = N.height(k), - w = N.depth(k); - return Nt([ - this.bind( - t, - Rt.makeLeftRightDelim('mopen', this.lFence, v, w, t) - ), - k, - this.bind( - t, - Rt.makeLeftRightDelim('mclose', this.rFence, v, w, t) - ), - ]); - } - decomposeGenfrac(t) { - const e = - 'auto' === this.mathstyle - ? t.mathstyle - : M.toMathstyle(this.mathstyle), - i = t.clone({ mathstyle: e }); - let s = []; - this.numerPrefix && s.push(Nt(this.numerPrefix)); - const a = this.continuousFraction ? e : e.fracNum(); - s = s.concat(Qt(i.clone({ mathstyle: a }), this.numer)); - const o = Ht(s, t.mathstyle.adjustTo(a)); - let n = []; - this.denomPrefix && n.push(Nt(this.denomPrefix)); - const r = this.continuousFraction ? e : e.fracDen(); - n = n.concat(Qt(i.clone({ mathstyle: r }), this.denom)); - const l = Ht(n, t.mathstyle.adjustTo(r)), - c = this.hasBarLine - ? h.defaultRuleThickness / e.sizeMultiplier - : 0; - let d, p, m; - e.size === M.DISPLAY.size - ? ((d = e.metrics.num1), - (p = c > 0 ? 3 * c : 7 * h.defaultRuleThickness), - (m = e.metrics.denom1)) - : (c > 0 - ? ((d = e.metrics.num2), (p = c)) - : ((d = e.metrics.num3), - (p = 3 * h.defaultRuleThickness)), - (m = e.metrics.denom2)); - const u = o ? o.depth : 0, - f = l ? l.height : 0; - let g; - if (0 === c) { - const t = d - u - (f - m); - t < p && ((d += 0.5 * (p - t)), (m += 0.5 * (p - t))), - (g = Vt(i, [o, -d, l, m], 'individualShift')); - } else { - const t = e.metrics.axisHeight; - d - u - (t + 0.5 * c) < p && - (d += p - (d - u - (t + 0.5 * c))), - t - 0.5 * c - (f - m) < p && - (m += p - (t - 0.5 * c - (f - m))); - const s = Kt(null, ' frac-line'); - s.applyStyle(this.getStyle()), (s.height = c); - const a = []; - o && (a.push(o), a.push(-d)), - a.push(s), - a.push(c / 2 - t), - l && (a.push(l), a.push(m)), - (g = Vt(i, a, 'individualShift')); - } - (g.classes += ' mfrac'), - (g.height *= e.sizeMultiplier / t.mathstyle.sizeMultiplier), - (g.depth *= e.sizeMultiplier / t.mathstyle.sizeMultiplier); - const y = - e.size === M.DISPLAY.size - ? e.metrics.delim1 - : e.metrics.delim2, - b = this.bind( - t, - Rt.makeCustomSizedDelim( - 'mopen', - this.leftDelim, - y, - !0, - t.clone({ mathstyle: e }) - ) - ), - x = this.bind( - t, - Rt.makeCustomSizedDelim( - 'mclose', - this.rightDelim, - y, - !0, - t.clone({ mathstyle: e }) - ) - ); - b.applyStyle(this.getStyle()), x.applyStyle(this.getStyle()); - const k = Nt( - [b, g, x], - t.parentSize !== t.size - ? 'sizing reset-' + t.parentSize + ' ' + t.size - : '' - ); - return this.bind(t, k); - } - decomposeLeftright(t) { - if (!this.body) - return this.leftDelim - ? new Zt('math', 'mopen', this.leftDelim).decompose(t) - : this.rightDelim - ? new Zt('math', 'mclose', this.rightDelim).decompose(t) - : null; - const e = t.clone(), - i = Qt(e, this.body), - s = e.mathstyle; - let a = 0, - o = 0, - n = []; - if ( - ((a = N.height(i) * s.sizeMultiplier), - (o = N.depth(i) * s.sizeMultiplier), - this.leftDelim && - (n.push( - this.bind( - t, - Rt.makeLeftRightDelim( - 'mopen', - this.leftDelim, - a, - o, - e, - 'ML__open' - ) - ) - ), - n[n.length - 1].applyStyle(this.getStyle())), - i) - ) { - for (let s = 0; s < i.length; s++) - if (i[s].delim) { - const n = i[s].caret, - r = /ML__selected/.test(i[s].classes); - (i[s] = this.bind( - t, - Rt.makeLeftRightDelim( - 'minner', - i[s].delim, - a, - o, - e - ) - )), - (i[s].caret = n), - i[s].selected(r); - } - n = n.concat(i); - } - if (this.rightDelim) { - let i, - s = this.rightDelim; - '?' === s && - ((s = { - '(': ')', - '\\{': '\\}', - '\\[': '\\]', - '\\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]), - (s = s || this.leftDelim), - (i = 'ML__smart-fence__close')), - n.push( - this.bind( - t, - Rt.makeLeftRightDelim( - 'mclose', - s, - a, - o, - e, - (i || '') + ' ML__close' - ) - ) - ), - n[n.length - 1].applyStyle(this.getStyle()); - } - return this.inner ? Wt(n, s.cls()) : n; - } - decomposeSurd(t) { - const e = t.mathstyle, - i = Qt(t.cramp(), this.body), - s = h.defaultRuleThickness / e.sizeMultiplier; - let a = s; - e.id < M.TEXT.id && (a = e.metrics.xHeight); - let o = s + a / 4; - const n = - Math.max( - 2 * a, - (N.height(i) + N.depth(i)) * e.sizeMultiplier - ) + - (o + s), - r = Kt( - Rt.makeCustomSizedDelim('', '\\surd', n, !1, t), - 'sqrt-sign' - ); - r.applyStyle(this.getStyle()); - const l = r.height + r.depth - s; - l > N.height(i) + N.depth(i) + o && - (o = (o + l - (N.height(i) + N.depth(i))) / 2), - r.setTop(r.height - N.height(i) - (o + s)); - const c = Kt(null, t.mathstyle.adjustTo(M.TEXT) + ' sqrt-line'); - c.applyStyle(this.getStyle()), (c.height = s); - const d = Vt(t, [i, o, c, s]); - if (!this.index) return this.bind(t, Nt([r, d], 'sqrt')); - const p = t.clone({ mathstyle: M.SCRIPTSCRIPT }), - m = Kt(Qt(p, this.index), e.adjustTo(M.SCRIPTSCRIPT)), - u = Math.max(r.height, d.height), - f = Math.max(r.depth, d.depth), - g = Vt(t, [m], 'shift', -0.6 * (u - f)); - return this.bind(t, Nt([Kt(g, 'root'), r, d], 'sqrt')); - } - decomposeAccent(t) { - const e = t.mathstyle; - let i = Qt(t.cramp(), this.body); - (this.superscript || this.subscript) && - (i = this.attachSupsub(t, Nt(i), 'mord')); - let s = 0; - Array.isArray(this.body) && - 1 === this.body.length && - this.body[0].isCharacterBox() && - (s = N.skew(i)); - const a = Math.min(N.height(i), e.metrics.xHeight), - o = N.makeSymbol('Main-Regular', this.accent, 'math'); - o.italic = 0; - const n = '⃗' === this.accent ? ' accent-vec' : ''; - let r = Kt(Kt(o), 'accent-body' + n); - return ( - (r = Vt(t, [i, -a, r])), - r.children[1].setLeft(2 * s), - Nt(r, 'accent') - ); - } - decomposeLine(t) { - const e = t.mathstyle, - i = Qt(t.cramp(), this.body), - s = h.defaultRuleThickness / e.sizeMultiplier, - a = Kt( - null, - t.mathstyle.adjustTo(M.TEXT) + - ' ' + - this.position + - '-line' - ); - let o; - if ( - ((a.height = s), - (a.maxFontSize = 1), - 'overline' === this.position) - ) - o = Vt(t, [i, 3 * s, a, s]); - else { - const e = Kt(i); - o = Vt(t, [s, a, 3 * s, e], 'top', N.height(e)); - } - return Nt(o, this.position); - } - decomposeOverunder(t) { - const e = Qt(t, this.body), - i = t.clone({ mathstyle: 'scriptstyle' }), - s = this.overscript - ? Kt( - Qt(i, this.overscript), - t.mathstyle.adjustTo(i.mathstyle) - ) - : null, - a = this.underscript - ? Kt( - Qt(i, this.underscript), - t.mathstyle.adjustTo(i.mathstyle) - ) - : null; - return Yt(t, e, 0, 0, s, a, this.mathtype || 'mrel'); - } - decomposeOverlap(t) { - const e = Kt(Qt(t, this.body), 'inner'); - return Nt( - [e, Kt(null, 'fix')], - 'left' === this.align ? 'llap' : 'rlap' - ); - } - decomposeRule(t) { - const e = t.mathstyle, - i = Nt('', '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 === M.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 = N.makeSymbol( - n, - this.body, - 'op-symbol ' + (s ? 'large-op' : 'small-op') - )), - (i.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 = N.makeOp(Qt(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 === M.DISPLAY.size) - ? this.attachLimits(t, i, a, o) - : this.attachSupsub(t, i, 'mop'); - } - return this.symbol && i.setTop(a), i; - } - decomposeBox(t) { - const e = Nt(Qt(t, this.body)), - i = Kt(); - i.setStyle('position', 'absolute'); - const s = - 'number' == typeof this.padding ? this.padding : h.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', - h.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 = Kt([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 = Nt(Qt(t, this.body)), - i = 'auto' === this.padding ? 0.2 : 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', - (N.height(e) + N.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 += ' 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 = Kt('​', '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)), - (i.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.containsCaret && - (Array.isArray(i) - ? ((i[0].classes = - (i[0].classes || '') + ' ML__contains-caret'), - (i[i.length - 1].classes = - (i[i.length - 1].classes || '') + - ' ML__contains-caret')) - : (i.classes = - (i.classes || '') + ' ML__contains-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 = Qt(t.sup(), this.superscript); - a = Kt(e, s.adjustTo(s.sup())); - } - if (this.subscript) { - const e = Qt(t.sub(), this.subscript); - o = Kt(e, s.adjustTo(s.sub())); - } - let n, - r = 0, - l = 0; - this.isCharacterBox() || - ((r = N.height(e) - s.metrics.supDrop), - (l = N.depth(e) + s.metrics.subDrop)), - (n = - s === M.DISPLAY - ? s.metrics.sup1 - : s.cramped - ? s.metrics.sup3 - : s.metrics.sup2); - const c = M.TEXT.sizeMultiplier * s.sizeMultiplier, - d = 0.5 / h.ptPerEm / c; - let p = null; - if (o && a) { - (r = Math.max(r, n, a.depth + 0.25 * s.metrics.xHeight)), - (l = Math.max(l, s.metrics.sub2)); - const i = h.defaultRuleThickness; - if (r - N.depth(a) - (N.height(o) - l) < 4 * i) { - l = 4 * i - (r - a.depth) + N.height(o); - const t = 0.8 * s.metrics.xHeight - (r - N.depth(a)); - t > 0 && ((r += t), (l -= t)); - } - (p = Vt(t, [o, l, a, -r], 'individualShift')), - this.symbol && p.children[0].setLeft(-N.italic(e)); - } else - o && !a - ? ((l = Math.max( - l, - s.metrics.sub1, - N.height(o) - 0.8 * s.metrics.xHeight - )), - (p = Vt(t, [o], 'shift', l)), - p.children[0].setRight(d), - this.isCharacterBox() && - p.children[0].setLeft(-N.italic(e))) - : !o && - a && - ((r = Math.max( - r, - n, - a.depth + 0.25 * s.metrics.xHeight - )), - (p = Vt(t, [a], 'shift', -r)), - p.children[0].setRight(d)); - const m = Kt(p, 'msubsup'); - return ( - this.caret && (m.caret = this.caret), - N.makeSpanOfType(i, [e, m]) - ); - } - attachLimits(t, e, i, s) { - const a = this.superscript - ? Kt( - Qt(t.sup(), this.superscript), - t.mathstyle.adjustTo(t.mathstyle.sup()) - ) - : null, - o = this.subscript - ? Kt( - Qt(t.sub(), this.subscript), - t.mathstyle.adjustTo(t.mathstyle.sub()) - ) - : null; - return Yt(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)) - : 'object' == typeof t.generateID && - ((e = t.generateID.overrideID - ? t.generateID.overrideID - : 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 = N.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 Xt(t) { - const e = Kt('​', 'arraycolsep'); - return e.setWidth(t, 'em'), e; - } - function Jt(t, e, i, s) { - const a = []; - for (const o of e) { - const e = Kt(Qt(t, s)); - (e.depth = o.depth), - (e.height = o.height), - a.push(e), - a.push(o.pos - i); - } - return Vt(t, a, 'individualShift'); - } - function Yt(t, e, i, s, a, o, n) { - if (!a && !o) return e; - e = Kt(e); - let r = 0, - l = 0; - a && (r = Math.max(h.bigOpSpacing1, h.bigOpSpacing3 - a.depth)), - o && - (l = Math.max(h.bigOpSpacing2, h.bigOpSpacing4 - o.height)); - let c = null; - if (o && a) { - const n = - h.bigOpSpacing5 + - N.height(o) + - N.depth(o) + - l + - N.depth(e) + - i; - (c = Vt( - t, - [h.bigOpSpacing5, o, l, e, r, a, h.bigOpSpacing5], - 'bottom', - n - )), - c.children[0].setLeft(-s), - c.children[2].setLeft(s); - } else if (o && !a) { - const a = N.height(e) - i; - (c = Vt(t, [h.bigOpSpacing5, o, l, e], 'top', a)), - c.children[0].setLeft(-s); - } else if (!o && a) { - const o = N.depth(e) + i; - (c = Vt(t, [e, r, a, h.bigOpSpacing5], 'bottom', o)), - c.children[1].setLeft(s); - } - return N.makeSpanOfType(n, c, 'op-limits'); - } - function Qt(t, e) { - function i(t) { - return 'mord' === t.type && /[0-9,.]/.test(t.latex); - } - function s(t) { - return 'text' === t.mode; - } - t instanceof _ || (t = new _(t)); - const a = !t.generateID || !t.generateID.groupNumbers; - let o = []; - if (Array.isArray(e)) { - if (0 === e.length) return o; - if (1 === e.length) - (o = e[0].decompose(t)), - o && - a && - e[0].isSelected && - o.forEach(t => t.selected(!0)); - else { - let n = 'none', - r = e[1].type, - l = [], - c = null, - h = !0, - d = null; - for (let p = 0; p < e.length; p++) { - 'mbin' === e[p].type && - (/first|none|mrel|mpunct|mopen|mbin|mop/.test(n) || - /none|mrel|mpunct|mclose/.test(r)) && - (e[p].type = 'mord'), - ('​' === e[p].body && - (e[p].superscript || e[p].subscript)) || - (d = null), - t.generateID.groupNumbers && - c && - ((h && i(e[p])) || (!h && s(e[p]))) && - (t.generateID.overrideID = c); - const m = e[p].decompose(t, d); - if ( - (t.generateID && (t.generateID.overrideID = null), - m) - ) { - const n = [].concat.apply([], m); - (d = n), - t.generateID && - t.generateID.groupNumbers && - ((i(e[p]) || s(e[p])) && - ((c && h === i(e[p])) || - ((h = i(e[p])), (c = e[p].id))), - ((!i(e[p]) && !s(e[p])) || - e[p].superscript || - e[p].subscript) && - c && - (c = null)), - a && e[p].isSelected - ? ((l = l.concat(n)), - l.forEach(t => t.selected(!0))) - : (l.length > 0 && - ((o = [...o, ...l]), (l = [])), - (o = o.concat(n))); - } - (n = e[p].getFinalBaseElement().type), - (r = e[p + 1] - ? e[p + 1].getInitialBaseElement().type - : 'none'); - } - l.length > 0 && ((o = [...o, ...l]), (l = [])); - } - } else - e && - ((o = e.decompose(t)), - o && a && e.isSelected && o.forEach(t => t.selected(!0))); - if (!o || 0 === o.length) return null; - if (t.mathstyle !== t.parentMathstyle) { - const e = - t.mathstyle.sizeMultiplier / - t.parentMathstyle.sizeMultiplier; - for (const t of o) (t.height *= e), (t.depth *= e); - } - if (t.size !== t.parentSize) { - const e = Gt[t.size] / Gt[t.parentSize]; - for (const t of o) (t.height *= e), (t.depth *= e); - } - return o; - } - var te = { - MathAtom: Zt, - decompose: Qt, - makeRoot: function(t, e) { - const i = new Zt((t = t || 'math'), 'root', e || []); - return ( - (0 !== i.body.length && 'first' === i.body[0].type) || - i.body.unshift(new Zt('', 'first')), - i - ); - }, - GREEK_REGEX: Ut, - }; - const ee = { - m0: '#3f3d99', - m1: '#993d71', - m2: '#998b3d', - m3: '#3d9956', - m4: '#3d5a99', - m5: '#993d90', - m6: '#996d3d', - m7: '#43993d', - m8: '#3d7999', - m9: '#843d99', - }, - ie = { - 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 se = 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 = ie[c] || ee[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 && 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 && 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) - ); - }, - ae = function(t) { - let e = t.toUpperCase(); - for (const t in ie) - if (ie[t] === e) { - e = t; - break; - } - for (const t in ee) - if (ee[t] === e) { - e = t; - break; - } - return e; - }, - oe = [ - '#d35d60', - '#7293cb', - '#e1974d', - '#84bb5d', - '#9066a7', - '#aD6a58', - '#f5a4ce', - '#fff590', - '#212121', - '#818787', - '#d4d5d2', - '#ffffff', - ], - ne = [ - '#cc2428', - '#3769b1', - '#da7e30', - '#409852', - '#6b4c9a', - '#922426', - '#e7298a', - '#ffe907', - '#000000', - '#525055', - '#adafaa', - '#ffffff', - ]; - const re = te.MathAtom; - class le { - 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 re(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 = At.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 ce( - n(this.args['?']), - this.parseMode, - null, - this.macros - ); - const t = new re( - 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 se(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); - let e; - return ( - this.skipWhitespace(), - (e = 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')), - e - ); - } - 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 re('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('$$')) return null; - const t = this.get().type, - e = new re('math', 'group'); - (e.mathstyle = '$' === t ? 'textstyle' : 'displaystyle'), - (e.latexOpen = 'textstyle' === e.mathstyle ? '$' : '$$'), - (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 = At.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()), - !c && - 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 re( - 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 re('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 = At.getInfo('\\' + i.value, 'math', this.macros); - o = e - ? [ - new re( - this.parseMode, - e.type, - e.value || i.value, - e.parse - ? e.parse('\\' + i.value, [s, t]) - : null - ), - ] - : [new re(this.parseMode, 'mop', i.value)]; - } else o = this.swapMathList(a); - return (this.style = e), o; - } - scanGroup() { - if (!this.parseToken('{')) return null; - const t = new re(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 re(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 = At.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')) - return null; - const t = this.style; - let e = 'right'; - if (!this.parseCommand('left')) { - if (!this.parseCommand('mleft')) return null; - e = 'mright'; - } - const i = this.scanDelim(); - if (!i) return null; - const s = this.swapMathList([]); - for (; !this.end() && !this.parseCommand(e); ) this.parseAtom(); - this.style = t; - const a = this.scanDelim(), - o = new re(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 re(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})*[^"]*$)/); - for (const e of t) { - const t = se(e); - if (t) (s = s || {}), (s.backgroundcolor = t); - else { - const t = e.match( - /^\s*([0-9.]+)\s*([a-z][a-z])/ - ); - if (t) - (s = s || {}), - (s.padding = m.toEm(t[1], t[2])); - else { - const t = e.match(/^\s*border\s*:\s*(.*)/); - t && ((s = s || {}), (s.border = t[1])); - } - } - } - } else - this.mathList = this.mathList.concat( - this.scanImplicitGroup( - t => 'literal' === t.type && ']' === t.value - ) - ); - this.parseMode = e; - const a = this.swapMathList(i); - return s || a; - } - scanArg(t) { - let e; - if ( - ((t = t && 'auto' !== t ? t : this.parseMode), - this.parseFiller(), - !this.parseToken('{')) - ) { - if ('delim' === t) return this.scanDelim() || '.'; - if (/^(math|text)$/.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 re('text', '', ' ', this.style)); - else if ('placeholder' === t.type) - (e = new re(this.parseMode, 'placeholder', t.value)), - (e.captureSelection = !0); - else if ('command' === t.type) { - if ('placeholder' === t.value) - (e = new re( - this.parseMode, - 'placeholder', - this.scanArg('string'), - this.style - )), - (e.captureSelection = !0); - else if ('char' === t.value) { - let t = Math.floor(this.scanNumber(!0)); - (!isFinite(t) || t < 0 || t > 1114111) && (t = 10067), - (e = new re( - this.parseMode, - 'math' === this.parseMode ? 'mord' : '', - String.fromCodePoint(t) - )), - (e.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 re( - this.parseMode, - 'spacing', - null, - this.style - )), - (e.width = i)), - (e.latex = '\\' + t.value); - } else if (((e = this.scanMacro(t.value)), !e)) { - const i = At.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 re( - this.parseMode, - 'placeholder', - t.placeholder - ); - (e.captureSelection = !0), s.push([e]); - } else s.push(this.placeholder()); - 'math' !== t.type && - 'string' == typeof e && - (a += e); - } - if (i && !i.infix) { - if (i.parse) { - const a = i.parse('\\' + t.value, s); - if (a.type) - e = new re( - this.parseMode, - i.type, - o ? this.scanArg(o) : null, - { ...this.style, ...a } - ); - else { - const t = this.parseMode; - if ( - (a.mode && - ((this.parseMode = a.mode), - delete a.mode), - o) - ) { - const t = this.style; - (this.style = { ...this.style, ...a }), - (e = this.scanArg(o)), - (this.style = t); - } else this.style = { ...this.style, ...a }; - this.parseMode = t; - } - } else { - const s = { ...this.style }; - i.baseFontFamily && - (s.baseFontFamily = i.baseFontFamily), - (e = new re( - this.parseMode, - i.type || 'mop', - i.value || t.value, - s - )), - i.skipBoundary && (e.skipBoundary = !0); - } - if ( - e && - !/^(llap|rlap|class|cssId)$/.test(t.value) && - ((e.latex = '\\' + t.value), - a && (e.latex += '{' + a + '}'), - e.isFunction && this.smartFence) - ) { - const t = this.scanSmartFence(); - t && (e = [e, t]); - } - } - i || - ((e = new re( - this.parseMode, - 'error', - '\\' + t.value - )), - (e.latex = '\\' + t.value)); - } - } else if ('literal' === t.type) { - const i = At.getInfo(t.value, this.parseMode, this.macros); - if (i) { - const s = { ...this.style }; - i.baseFontFamily && - (s.baseFontFamily = i.baseFontFamily), - (e = new re( - this.parseMode, - i.type, - i.value || t.value, - s - )), - i.isFunction && (e.isFunction = !0); - } else - e = new re( - this.parseMode, - 'math' === this.parseMode ? 'mord' : '', - t.value, - this.style - ); - if ( - ((e.latex = At.matchCodepoint( - this.parseMode, - t.value.codePointAt(0) - )), - i && i.isFunction && this.smartFence) - ) { - const t = this.scanSmartFence(); - t && (e = [e, t]); - } - } else if ('#' === t.type) - if ('?' === t.value) e = this.placeholder(); - else if (this.args) - if ( - ((e = this.args[t.value] || null), - Array.isArray(e) && 1 === e.length) - ) - e = e[0]; - else if (Array.isArray(e)) { - const t = new re(this.parseMode, 'group'); - (t.body = e), (e = t); - } else e = this.placeholder(); - return e; - } - scanMacro(t) { - if (!this.macros || !this.macros[t]) return null; - const e = {}; - let i, - s = 0; - 'string' == typeof this.macros[t] - ? ((i = this.macros[t]), - /(^|[^\\])#1/.test(i) && (s = 1), - /(^|[^\\])#2/.test(i) && (s = 2), - /(^|[^\\])#3/.test(i) && (s = 3), - /(^|[^\\])#4/.test(i) && (s = 4), - /(^|[^\\])#5/.test(i) && (s = 5), - /(^|[^\\])#6/.test(i) && (s = 6), - /(^|[^\\])#7/.test(i) && (s = 7), - /(^|[^\\])#8/.test(i) && (s = 8), - /(^|[^\\])#9/.test(i) && (s = 9)) - : ((i = this.macros[t].def), - (s = this.macros[t].args || 0)); - for (let t = 1; t <= s; t++) e[t] = this.scanArg(); - this.args && - 'string' == typeof this.args['?'] && - (e['?'] = this.args['?']); - const a = new re( - this.parseMode, - 'group', - ce(n(i), this.parseMode, e, this.macros) - ); - (a.captureSelection = !0), (a.latex = '\\' + t); - let o = ''; - for (let t = 1; t <= s; t++) { - if (((o += '{'), Array.isArray(e[t]))) - for (let i = 0; i < e[t].length; i++) - o += e[t][i].latex; - o += '}'; - } - return (a.latex += o || ''), a; - } - parseAtom() { - let t = - this.scanEnvironment() || - this.scanModeShift() || - this.scanModeSet() || - this.scanGroup() || - this.scanLeftRight(); - return ( - !(t || (!this.parseSupSub() && !this.parseLimits())) || - (t || (t = this.scanToken()), - Array.isArray(t) - ? (this.mathList = this.mathList.concat(t)) - : t && this.mathList.push(t), - null !== t) - ); - } - } - function ce(t, e, i, s, a) { - let o = []; - const n = new le(t, i, s); - for ( - n.parseMode = e || 'math', a && (n.smartFence = !0); - !n.end(); - - ) - o = o.concat(n.scanImplicitGroup()); - return o; - } - var he = { Parser: le, parseTokens: ce }; - function de(t, e) { - let i = ''; - for (const e of t) i += e.relation + ':' + e.offset + '/'; - return e && (i += '#' + e), i; - } - function pe(t) { - const e = { path: [], extent: 0 }, - i = t.split('#'); - i.length > 1 && (e.extent = parseInt(i[1])); - const s = i[0].split('/'); - for (const t of s) { - const i = t.match(/([^:]*):(.*)/); - i && e.path.push({ relation: i[1], offset: parseInt(i[2]) }); - } - return e; - } - var me = { - pathFromString: pe, - pathToString: de, - pathDistance: function(t, e) { - let i = 0, - s = -1, - a = !1; - for (; !a; ) - (s += 1), - (a = s >= t.length || s >= e.length), - (a = - a || - !( - t[s].relation === e[s].relation && - t[s].offset === e[s].offset - )); - return ( - (i = - s === t.length && s === e.length - ? 0 - : s + 1 === t.length && - s + 1 === e.length && - t[s].relation === e[s].relation - ? 1 - : 2), - i - ); - }, - pathCommonAncestor: function(t, e) { - const i = [], - s = Math.min(t.length - 1, e.length - 1); - let a = 0; - for ( - ; - a <= s && - t[a].relation === e[a].relation && - t[a].offset === e[a].offset; - - ) - i.push(t[a]), (a += 1); - return i; - }, - clone: function(t) { - return pe(de(t)).path; - }, - }; - const ue = { - 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', - 'math:Shift-Tab': 'moveToPreviousPlaceholder', - 'math:Shift-F8': 'moveToPreviousPlaceholder', - 'text:Tab': 'moveToNextPlaceholder', - 'text:F8': 'moveToNextPlaceholder', - 'text:Shift-Tab': 'moveToPreviousPlaceholder', - 'text:Shift-F8': 'moveToPreviousPlaceholder', - '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: !0 }], - 'command:Tab': ['complete', { acceptSuggestion: !0 }], - 'command:Return': 'complete', - 'command:Enter': 'complete', - 'command:Shift-Esc': ['complete', { discard: !0 }], - 'command:Down': 'nextSuggestion', - 'ios:command:Tab': 'nextSuggestion', - 'command:Up': 'previousSuggestion', - '!mac:Ctrl-KeyA': 'selectAll', - 'mac:Meta-KeyA': 'selectAll', - Cut: 'cut', - Copy: 'copy', - Paste: 'paste', - Clear: 'delete', - '!mac:Ctrl-KeyZ': 'undo', - 'mac:Meta-KeyZ': 'undo', - Undo: 'undo', - '!mac:Ctrl-KeyY': 'redo', - 'mac:Meta-Shift-KeyY': 'redo', - '!mac:Ctrl-Shift-KeyZ': 'redo', - 'mac:Meta-Shift-KeyZ': 'redo', - Redo: 'redo', - EraseEof: 'deleteToGroupEnd', - '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', '”', ''], - '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', - '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'], - 'math:Alt-Digit6': ['insert', '\\wedge'], - 'math:Alt-Shift-Digit6': ['insert', '\\vee'], - 'math:Alt-Digit9': ['insert', '('], - 'math:Alt-Digit0': ['insert', ')'], - 'math:Alt-Shift-Backslash': ['insert', '|'], - 'math:Alt-Backslash': ['insert', '\\backslash'], - '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', '\\/'], - 'Alt-Shift-KeyK': 'toggleKeystrokeCaption', - 'Alt-Space': 'toggleVirtualKeyboard', - 'mac:Ctrl-Meta-Up': [ - 'speak', - 'parent', - { withHighlighting: !1 }, - ], - '!mac:Ctrl-Alt-Up': [ - 'speak', - 'parent', - { withHighlighting: !1 }, - ], - 'mac:Ctrl-Meta-Down': [ - 'speak', - 'all', - { withHighlighting: !1 }, - ], - '!mac:Ctrl-Alt-Down': [ - 'speak', - 'all', - { withHighlighting: !1 }, - ], - 'mac:Ctrl-Meta-Left': [ - 'speak', - 'left', - { withHighlighting: !1 }, - ], - '!mac:Ctrl-Alt-Left': [ - 'speak', - 'left', - { withHighlighting: !1 }, - ], - 'mac:Ctrl-Meta-Right': [ - 'speak', - 'right', - { withHighlighting: !1 }, - ], - '!mac:Ctrl-Alt-Right': [ - 'speak', - 'right', - { withHighlighting: !1 }, - ], - '!mac:Ctrl-Alt-Period': [ - 'speak', - 'selection', - { withHighlighting: !1 }, - ], - 'mac:Ctrl-Meta-Period': [ - 'speak', - 'selection', - { withHighlighting: !1 }, - ], - 'mac:Ctrl-Meta-Shift-Up': [ - 'speak', - 'parent', - { withHighlighting: !0 }, - ], - '!mac:Ctrl-Alt-Shift-Up': [ - 'speak', - 'parent', - { withHighlighting: !0 }, - ], - 'mac:Ctrl-Meta-Shift-Down': [ - 'speak', - 'all', - { withHighlighting: !0 }, - ], - '!mac:Ctrl-Alt-Shift-Down': [ - 'speak', - 'all', - { withHighlighting: !0 }, - ], - 'mac:Ctrl-Meta-Shift-Left': [ - 'speak', - 'left', - { withHighlighting: !0 }, - ], - '!mac:Ctrl-Alt-Shift-Left': [ - 'speak', - 'left', - { withHighlighting: !0 }, - ], - 'mac:Ctrl-Meta-Shift-Right': [ - 'speak', - 'right', - { withHighlighting: !0 }, - ], - '!mac:Ctrl-Alt-Shift-Right': [ - 'speak', - 'right', - { withHighlighting: !0 }, - ], - '!mac:Ctrl-Alt-Shift-Period': [ - 'speak', - 'selection', - { withHighlighting: !0 }, - ], - 'mac:Ctrl-Meta-Shift-Period': [ - 'speak', - 'selection', - { withHighlighting: !0 }, - ], - }, - fe = { - '\\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', - '\\~': '~', - }, - ge = { - "''": { mode: 'math', value: '^{\\doubleprime}' }, - alpha: '\\alpha', - delta: '\\delta', - Delta: '\\Delta', - pi: { mode: 'math', value: '\\pi' }, - 'pi ': { mode: 'text', value: '\\pi ' }, - Pi: { mode: 'math', value: '\\Pi' }, - theta: '\\theta', - Theta: '\\Theta', - 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' }, - '∞': '\\infty', - oo: { - mode: 'math', - after: - 'nothing+digit+frac+surd+binop+relop+punct+array+openfence+closefence+space', - value: '\\infty', - }, - '∑': { mode: 'math', value: '\\sum' }, - sum: { mode: 'math', value: '\\sum_{#?}^{#?}' }, - prod: { mode: 'math', value: '\\prod_{#?}^{#?}' }, - sqrt: { mode: 'math', value: '\\sqrt' }, - '∆': { mode: 'math', value: '\\differentialD' }, - '∂': { mode: 'math', value: '\\differentialD' }, - 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_{#?}' }, - dx: '\\differentialD x', - dy: '\\differentialD y', - dt: '\\differentialD t', - AA: { mode: 'math', value: '\\forall' }, - EE: { mode: 'math', value: '\\exists' }, - '!EE': { mode: 'math', value: '\\nexists' }, - '&&': { mode: 'math', value: '\\land' }, - 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' }, - NN: '\\N', - ZZ: '\\Z', - QQ: '\\Q', - RR: '\\R', - CC: '\\C', - PP: '\\P', - xx: '\\times', - '+-': '\\pm', - '!=': '\\ne', - '>=': '\\ge', - '<=': '\\le', - '<<': '\\ll', - '>>': '\\gg', - '~~': '\\approx', - '≈': '\\approx', - '?=': '\\questeq', - '÷': '\\div', - '¬': '\\neg', - ':=': '\\coloneq', - '::': '\\Colon', - '(:': '\\langle', - ':)': '\\rangle', - 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', - 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', - forall: '\\forall', - exists: { mode: 'math', value: '\\exists' }, - '!exists': { mode: 'math', value: '\\nexists' }, - ':.': { mode: 'math', value: '\\therefore' }, - 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((this.path = [{ relation: 'body', offset: 0 }]), - (this.extent = 0)) - : this.setExtent(t.extent), - this.selectionDidChange()), - i || s - ); - }), - (we.prototype.wordBoundary = function(t, e) { - e = e < 0 ? -1 : 1; - const i = new we(); - (i.path = me.clone(t)), (i.root = this.root); - let s = 0; - for ( - ; - i.sibling(s) && - 'text' === i.sibling(s).mode && - At.LETTER_AND_DIGITS.test(i.sibling(s).body); - - ) - s += e; - return ( - i.sibling(s) || (s -= e), - (i.path[i.path.length - 1].offset += s), - i.path - ); - }), - (we.prototype.wordBoundaryOffset = function(t, e) { - e = e < 0 ? -1 : 1; - const i = this.siblings(); - if (!i[t]) return t; - if ('text' !== i[t].mode) return t; - let s; - if (At.LETTER_AND_DIGITS.test(i[t].body)) { - let a, - o = t; - do { - (a = - 'text' === i[o].mode && - At.LETTER_AND_DIGITS.test(i[o].body)), - (o += e); - } while (i[o] && a); - s = i[o] ? o - 2 * e : o - e; - } else if (/\s/.test(i[t].body)) { - let a = t; - for ( - ; - i[a] && 'text' === i[a].mode && /\s/.test(i[a].body); - - ) - a += e; - if (i[a]) { - let t = !0; - do { - (t = 'text' === i[a].mode && !/\s/.test(i[a].body)), - (a += e); - } while (i[a] && t); - s = i[a] ? a - 2 * e : a - e; - } else s = a - e; - } else { - let a = t; - for ( - ; - i[a] && 'text' === i[a].mode && !/\s/.test(i[a].body); - - ) - a += e; - s = i[a] ? a : a - e; - let o = !0; - for (; i[a] && o; ) - (o = 'text' === i[a].mode && /\s/.test(i[a].body)), - o && (s = a), - (a += e); - s = i[a] ? a - 2 * e : a - e; - } - return s - (e > 0 ? 0 : 1); - }), - (we.prototype.setRange = function(t, e, i) { - i = i || {}; - const s = me.pathDistance(t, e); - if (0 === s) - return i.extendToWordBoundary - ? ((t = this.wordBoundary(t, -1)), - (e = this.wordBoundary(e, 1)), - this.setRange(t, e)) - : this.setPath(me.clone(t), 0); - if (1 === s) { - const s = e[e.length - 1].offset - t[t.length - 1].offset; - return i.extendToWordBoundary - ? ((t = this.wordBoundary(t, s < 0 ? 1 : -1)), - (e = this.wordBoundary(e, s < 0 ? -1 : 1)), - this.setRange(t, e)) - : this.setPath(me.clone(t), s); - } - let a = me.pathCommonAncestor(t, e); - const o = a.length; - if ( - t.length === o || - e.length === o || - t[o].relation !== e[o].relation - ) - return this.setPath(a, -1); - a.push(t[o]), (a = me.clone(a)); - let n = e[o].offset - t[o].offset + 1; - return ( - n <= 0 - ? e.length > o + 1 - ? ((a[o].relation = e[o].relation), - (a[o].offset = e[o].offset), - (a[a.length - 1].offset -= 1), - (n = 2 - n)) - : ((a[o].relation = e[o].relation), - (a[o].offset = e[o].offset), - (n = 1 - n)) - : e.length <= t.length - ? (a[a.length - 1].offset -= 1) - : e.length > t.length && (a[o].offset -= 1), - this.setPath(a, n) - ); - }), - (we.prototype.ancestor = function(t) { - if (t > this.path.length) return null; - let e = this.root; - for (let i = 0; i < this.path.length - t; i++) { - const t = this.path[i]; - if (e.array) e = Ce(e.array, t.relation)[t.offset]; - else { - if (!e[t.relation]) return null; - { - (0 !== e[t.relation].length && - 'first' === e[t.relation][0].type) || - e[t.relation].unshift(Oe()); - const i = Math.min( - t.offset, - e[t.relation].length - 1 - ); - e = e[t.relation][i]; - } - } - } - return e; - }), - (we.prototype.anchor = function() { - if (this.parent().array) - return Ce(this.parent().array, this.relation())[ - this.anchorOffset() - ]; - const t = this.siblings(); - return t[Math.min(t.length - 1, this.anchorOffset())]; - }), - (we.prototype.parent = function() { - return this.ancestor(1); - }), - (we.prototype.relation = function() { - return this.path.length > 0 - ? this.path[this.path.length - 1].relation - : ''; - }), - (we.prototype.anchorOffset = function() { - return this.path.length > 0 - ? this.path[this.path.length - 1].offset - : 0; - }), - (we.prototype.focusOffset = function() { - return this.path.length > 0 - ? this.path[this.path.length - 1].offset + this.extent - : 0; - }), - (we.prototype.startOffset = function() { - return Math.min(this.focusOffset(), this.anchorOffset()); - }), - (we.prototype.endOffset = function() { - return Math.max(this.focusOffset(), this.anchorOffset()); - }), - (we.prototype.insertFirstAtom = function() { - this.siblings(); - }), - (we.prototype.siblings = function() { - if (0 === this.path.length) return []; - let t; - return ( - this.parent().array - ? (t = Ce(this.parent().array, this.relation())) - : ((t = this.parent()[this.relation()] || []), - 'string' == typeof t && (t = [])), - (0 !== t.length && 'first' === t[0].type) || - t.unshift(Oe()), - t - ); - }), - (we.prototype.sibling = function(t) { - return this.siblings()[this.startOffset() + t]; - }), - (we.prototype.isCollapsed = function() { - return 0 === this.extent; - }), - (we.prototype.setExtent = function(t) { - this.extent = t; - }), - (we.prototype.collapseForward = function() { - return ( - 0 !== this.extent && - (this.setSelection(this.endOffset()), !0) - ); - }), - (we.prototype.collapseBackward = function() { - return ( - 0 !== this.extent && - (this.setSelection(this.startOffset()), !0) - ); - }), - (we.prototype.selectGroup_ = function() { - const t = this.siblings(); - if ('text' === this.anchorMode()) { - let e = this.startOffset(), - i = this.endOffset(); - for ( - ; - t[e] && - 'text' === t[e].mode && - At.LETTER_AND_DIGITS.test(t[e].body); - - ) - e -= 1; - for ( - ; - t[i] && - 'text' === t[i].mode && - At.LETTER_AND_DIGITS.test(t[i].body); - - ) - i += 1; - if (((i -= 1), e >= i)) - return void this.setSelection(this.endOffset() - 1, 1); - this.setSelection(e, i - e); - } else if ( - 'mord' === this.sibling(0).type && - /[0-9,.]/.test(this.sibling(0).body) - ) { - let e = this.startOffset(), - i = this.endOffset(); - for (; Fe(t[e]); ) e -= 1; - for (; Fe(t[i]); ) i += 1; - (i -= 1), this.setSelection(e, i - e); - } else this.setSelection(0, 'end'); - }), - (we.prototype.selectAll_ = function() { - (this.path = [{ relation: 'body', offset: 0 }]), - this.setSelection(0, 'end'); - }), - (we.prototype.deleteAll_ = function() { - this.selectAll_(), this.delete_(); - }), - (we.prototype.contains = function(t) { - if (this.isCollapsed()) return !1; - const e = this.siblings(), - i = this.startOffset(), - s = this.endOffset(); - for (let a = i; a < s; a++) if (De(e[a], t)) return !0; - return !1; - }), - (we.prototype.getSelectedAtoms = function() { - if (this.isCollapsed()) return null; - const t = [], - e = this.siblings(), - i = this.startOffset() + 1, - s = this.endOffset() + 1; - for (let a = i; a < s; a++) - e[a] && 'first' !== e[a].type && t.push(e[a]); - return t; - }), - (we.prototype.commandOffsets = function() { - const t = this.siblings(); - if (t.length <= 1) return null; - let e = Math.min(this.endOffset(), t.length - 1); - if ('command' !== t[e].type) return null; - for (; e > 0 && 'command' === t[e].type; ) e -= 1; - let i = this.startOffset() + 1; - for (; i <= t.length - 1 && 'command' === t[i].type; ) i += 1; - return i > e ? { start: e + 1, end: i } : null; - }), - (we.prototype.extractCommandStringAroundInsertionPoint = function( - t - ) { - let e = ''; - const i = this.commandOffsets(); - if (i) { - const s = t ? this.anchorOffset() + 1 : i.end, - a = this.siblings(); - for (let t = i.start; t < s; t++) e += a[t].body || ''; - } - return e; - }), - (we.prototype.decorateCommandStringAroundInsertionPoint = function( - t - ) { - const e = this.commandOffsets(); - if (e) { - const i = this.siblings(); - for (let s = e.start; s < e.end; s++) i[s].error = t; - } - }), - (we.prototype.commitCommandStringBeforeInsertionPoint = function() { - const t = this.commandOffsets(); - if (t) { - const e = this.siblings(), - i = this.anchorOffset() + 1; - for (let s = t.start; s < i; s++) - e[s] && (e[s].suggestion = !1); - } - }), - (we.prototype.spliceCommandStringAroundInsertionPoint = function( - t - ) { - const e = this.commandOffsets(); - if (e) { - if ((this.contentWillChange(), t)) { - Array.prototype.splice.apply( - this.siblings(), - [e.start, e.end - e.start].concat(t) - ); - let i = []; - for (const e of t) - i = i.concat( - e.filter(t => 'placeholder' === t.type) - ); - this.setExtent(0), - (this.path[this.path.length - 1].offset = - e.start - 1), - (0 !== i.length && this.leap(1, !1)) || - this.setSelection(e.start + t.length - 1); - } else - this.siblings().splice(e.start, e.end - e.start), - this.setSelection(e.start - 1, 0); - this.contentDidChange(); - } - }), - (we.prototype.removeCommandString = function() { - this.contentWillChange(); - const t = this.suppressChangeNotifications; - (this.suppressChangeNotifications = !0), - (function t(e) { - if (e) - if (Array.isArray(e)) - for (let i = e.length - 1; i >= 0; i--) - 'command' === e[i].type - ? e.splice(i, 1) - : t(e[i]); - else if ( - (t(e.body), - t(e.superscript), - t(e.subscript), - t(e.underscript), - t(e.overscript), - t(e.numer), - t(e.denom), - t(e.index), - e.array) - ) - for (let i = _e(e.array); i >= 0; i--) - t(Ce(e.array, i)); - })(this.root.body), - (this.suppressChangeNotifications = t), - this.contentDidChange(); - }), - (we.prototype.extractArgBeforeInsertionPoint = function() { - const t = this.siblings(); - if (t.length <= 1) return []; - const e = []; - let i = this.startOffset(); - if ('text' === t[i].mode) - for (; i >= 1 && 'text' === t[i].mode; ) - e.unshift(t[i]), i--; - else - for ( - ; - i >= 1 && - /^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type); - - ) - e.unshift(t[i]), i--; - return e; - }), - (we.prototype.setSelection = function(t, e, i) { - (t = t || 0), (e = e || 0); - const 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 - ); - }), - (we.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 = _e(this.parent().array); - let e = - parseInt( - this.relation().match(/cell([0-9]*)$/)[1] - ) + 1; - for (; e < t; ) { - if ( - Ce(this.parent().array, e) && - this.setSelection(0, 0, 'cell' + e) - ) - return void this.selectionDidChange(); - e += 1; - } - } - if (1 === this.path.length) - (this.suppressChangeNotifications || - !this.config.onMoveOutOf || - this.config.onMoveOutOf(this, 'forward')) && - (this.path[0].offset = 0); - else { - const e = !t.iterateAll && this.parent().skipBoundary; - this.path.pop(), e && this.next(t); - } - return void this.selectionDidChange(); - } - this.setSelection(this.anchorOffset() + 1); - const i = this.anchor(); - if (i && !i.captureSelection) { - let s; - if (i.array) { - let t = 0; - s = ''; - const e = _e(i.array); - for (; !s && t < e; ) - Ce(i.array, t) && (s = 'cell' + t.toString()), - (t += 1); - return ( - this.path.push({ relation: s, offset: 0 }), - void this.setSelection(0, 0, s) - ); - } - for (s = 'body'; s; ) { - if (Array.isArray(i[s])) - return ( - this.path.push({ relation: s, offset: 0 }), - this.insertFirstAtom(), - void ( - !t.iterateAll && - i.skipBoundary && - this.next(t) - ) - ); - s = e[s]; - } - } - }), - (we.prototype.previous = function(t) { - const e = { - numer: 'body', - denom: 'numer', - index: 'denom', - overscript: 'index', - underscript: 'overscript', - subscript: 'underscript', - superscript: 'subscript', - }; - if ( - (!(t = t || {}).iterateAll && - 1 === this.anchorOffset() && - this.parent() && - this.parent().skipBoundary && - this.setSelection(0), - this.anchorOffset() < 1) - ) { - let t = e[this.relation()]; - for (; t && !this.setSelection(-1, 0, t); ) t = e[t]; - const i = this.parent() ? this.parent().type : 'none'; - if ( - ('body' !== t || - ('msubsup' !== i && 'mop' !== i) || - (t = null), - t) - ) - return; - if ( - (this.adjustPlaceholder(), - this.selectionWillChange(), - this.relation().startsWith('cell')) - ) { - let t = - parseInt( - this.relation().match(/cell([0-9]*)$/)[1] - ) - 1; - for (; t >= 0; ) { - if ( - Ce(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 = _e(i.array); - let s = e - 1; - for (; !t && s < e; ) - Ce(i.array, s) && (t = 'cell' + s.toString()), - (s -= 1); - return ( - (s += 1), - this.path.push({ - relation: t, - offset: Ce(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); - }), - (we.prototype.move = function(t, e) { - const i = (e = e || { extend: !1 }).extend || !1; - if ((this.removeSuggestion(), i)) this.extend(t, e); - else { - const e = Se(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); - } - }), - (we.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 = Me(this.parent().array, i); - (e = Le(this.parent().array, e, -1)), - e && Ce(e) - ? ((this.path[this.path.length - 1].relation = - 'cell' + Ae(this.parent().array, e)), - this.setSelection(this.anchorOffset()), - this._announce('moveUp')) - : this.move(-1, t); - } else this._announce('line'); - }), - (we.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 = Me(this.parent().array, i); - (e = Le(this.parent().array, e, 1)), - e && Ce(e) - ? ((this.path[this.path.length - 1].relation = - 'cell' + Ae(this.parent().array, e)), - this.setSelection(this.anchorOffset()), - this._announce('moveDown')) - : this.move(1, t); - } else this._announce('line'); - }), - (we.prototype.extend = function(t) { - let e = this.path[this.path.length - 1].offset, - i = 0; - const s = Se(this); - i = this.extent + t; - const a = e + i; - 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); - }), - (we.prototype.skip = function(t, e) { - const i = (e = e || { extend: !1 }).extend || !1; - t = t < 0 ? -1 : 1; - const s = Se(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)), n < 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); - } - }), - (we.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); - }), - (we.prototype.jumpToMathFieldBoundary = function(t, e) { - const i = (e = e || { extend: !1 }).extend || !1; - t = (t = t || 1) < 0 ? -1 : 1; - const s = Se(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); - }), - (we.prototype.leap = function(t, e) { - (t = (t = t || 1) < 0 ? -1 : 1), (e = e || !0); - const i = this.suppressChangeNotifications; - this.suppressChangeNotifications = !0; - const s = Se(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 (this.suppressChangeNotifications = i), !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 - ); - }), - (we.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; - }), - (we.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; - }), - (we.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]; 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 = ze(t.numer)), - (t.denom = ze(t.denom))), - t.superscript && - (this.simplifyParen(t.superscript), - (t.superscript = ze(t.superscript))), - t.subscript && - (this.simplifyParen(t.subscript), - (t.subscript = ze(t.subscript))), - t.underscript && - (this.simplifyParen(t.underscript), - (t.underscript = ze(t.underscript))), - t.overscript && - (this.simplifyParen(t.overscript), - (t.overscript = ze(t.overscript))), - t.index && - (this.simplifyParen(t.index), - (t.index = ze(t.index))), - 'surd' === t.type - ? (this.simplifyParen(t.body), - (t.body = ze(t.body))) - : t.body && - Array.isArray(t.body) && - this.simplifyParen(t.body), - t.array) - ) - for (let e = _e(t.array); e >= 0; e--) - this.simplifyParen(Ce(t.array, e)); - }); - } - }), - (we.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 r = [this.getSelectedAtoms()]; - void 0 !== e.placeholder && (r['?'] = 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 l = this.siblings(), - c = this.startOffset(); - if ( - (c + 1 < l.length && - l[c + 1] && - 'placeholder' === l[c + 1].type - ? this.delete_(1) - : c > 0 && - l[c] && - 'placeholder' === l[c].type && - this.delete_(-1), - 'math' === a && 'ASCIIMath' === e.format) - ) - (t = Ee(t, { ...this.config, format: 'ASCIIMath' })), - (o = he.parseTokens(n(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) - At.COMMAND_MODE_CHARACTERS.test(e) && - o.push( - new te.MathAtom('command', 'command', e) - ); - } else - '' === t - ? (o = [ - new te.MathAtom('command', 'command', '\\'), - ]) - : ((t = Ee(t, this.config)), - r[0] - ? (t = t.replace(/(^|[^\\])#@/g, '$1#0')) - : /(^|[^\\])#@/.test(t) - ? ((t = t.replace(/(^|[^\\])#@/g, '$1#0')), - (r[0] = this.extractArgBeforeInsertionPoint()), - this._deleteAtoms(-r[0].length), - Array.isArray(r[0]) && - 0 === r[0].length && - (r[0] = void 0)) - : (t = t.replace(/(^|[^\\])#@/g, '$1#?')), - (o = he.parseTokens( - n(t), - a, - r, - e.macros, - e.smartFence - )), - this.simplifyParen(o)); - else - 'latex' === e.format - ? (o = he.parseTokens( - n(t), - a, - r, - e.macros, - e.smartFence - )) - : ('text' !== a && 'text' !== e.format) || - ((t = (t = (t = (t = (t = (t = (t = (t = (t = (t = (t = t.replace( - /\\/g, - '\\textbackslash ' - )).replace(/#/g, '\\#')).replace( - /\$/g, - '\\$' - )).replace(/%/g, '\\%')).replace( - /&/g, - '\\&' - )).replace(/_/g, '\\_')).replace( - /{/g, - '\\textbraceleft ' - )).replace(/}/g, '\\textbraceright ')).replace( - /\^/g, - '\\textasciicircum ' - )).replace(/~/g, '\\textasciitilde ')).replace( - /£/g, - '\\textsterling ' - )), - (o = he.parseTokens(n(t), 'text', r, 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 h = this.parent(); - if ( - (this.config.removeExtraneousParentheses && - h && - 'leftright' === h.type && - '(' === h.leftDelim && - (function(t) { - return ( - 0 === t.length || - (1 === t.length && 'first' === t[0].type) - ); - })(h.body) && - 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); - }), - (we.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 = At.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; - if ( - (Object.keys(At.RIGHT_DELIM).forEach(e => { - t === At.RIGHT_DELIM[e] && (a = e); - }), - 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; - }), - (we.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); - }), - (we.prototype.removeSuggestion = function() { - const t = this.siblings(); - for (let e = t.length - 1; e >= 0; e--) - t[e].suggestion && t.splice(e, 1); - }), - (we.prototype.insertSuggestion = function(t, e) { - this.removeSuggestion(); - const i = [], - s = t.substr(e); - for (const t of s) { - const e = new te.MathAtom('command', 'command', t); - (e.suggestion = !0), i.push(e); - } - Array.prototype.splice.apply( - this.siblings(), - [this.anchorOffset() + 1, 0].concat(i) - ); - }), - (we.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)); - }), - (we.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++; - }), - (we.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 && !Ce(t, e); ) e.row += 1; - return Ce(t, e) ? 'cell' + Ae(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 te.MathAtom( - 'math', - 'mpunct', - e[0], - void 0 - )), - (a = a.concat(Te(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 = Me(t, this.relation()); - if (0 === e.col) { - const i = Le(t, e, -1); - (i.col = t[i.row].length - 1), - (this.path[this.path.length - 1].relation = - 'cell' + Ae(t, i)); - const s = t[i.row][i.col].length, - a = Te(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 = Ce(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' + Ae(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 if ('numer' === this.relation()) { - 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: numerator'); - } else this.move(1), this.delete(-1); - } else { - const t = this.startOffset() + 1, - e = this.endOffset() + 1; - this._announce('deleted', null, i.slice(t, e)), - i.splice(t, e - t), - this.setSelection(t - 1); - } - (this.suppressChangeNotifications = e), - this.selectionDidChange(), - this.contentDidChange(); - }), - (we.prototype.moveToNextPlaceholder_ = function() { - this.leap(1); - }), - (we.prototype.moveToPreviousPlaceholder_ = function() { - this.leap(-1); - }), - (we.prototype.moveToNextChar_ = function() { - this.move(1); - }), - (we.prototype.moveToPreviousChar_ = function() { - this.move(-1); - }), - (we.prototype.moveUp_ = function() { - this.up(); - }), - (we.prototype.moveDown_ = function() { - this.down(); - }), - (we.prototype.moveToNextWord_ = function() { - this.skip(1); - }), - (we.prototype.moveToPreviousWord_ = function() { - this.skip(-1); - }), - (we.prototype.moveToGroupStart_ = function() { - this.setSelection(0); - }), - (we.prototype.moveToGroupEnd_ = function() { - this.setSelection(-1); - }), - (we.prototype.moveToMathFieldStart_ = function() { - this.jumpToMathFieldBoundary(-1); - }), - (we.prototype.moveToMathFieldEnd_ = function() { - this.jumpToMathFieldBoundary(1); - }), - (we.prototype.deleteNextChar_ = function() { - this.delete_(1); - }), - (we.prototype.deletePreviousChar_ = function() { - this.delete_(-1); - }), - (we.prototype.deleteNextWord_ = function() { - this.extendToNextBoundary(), this.delete_(); - }), - (we.prototype.deletePreviousWord_ = function() { - this.extendToPreviousBoundary(), this.delete_(); - }), - (we.prototype.deleteToGroupStart_ = function() { - this.extendToGroupStart(), this.delete_(); - }), - (we.prototype.deleteToGroupEnd_ = function() { - this.extendToMathFieldStart(), this.delete_(); - }), - (we.prototype.deleteToMathFieldEnd_ = function() { - this.extendToMathFieldEnd(), this.delete_(); - }), - (we.prototype.transpose_ = function() {}), - (we.prototype.extendToNextChar_ = function() { - this.extend(1); - }), - (we.prototype.extendToPreviousChar_ = function() { - this.extend(-1); - }), - (we.prototype.extendToNextWord_ = function() { - this.skip(1, { extend: !0 }); - }), - (we.prototype.extendToPreviousWord_ = function() { - this.skip(-1, { extend: !0 }); - }), - (we.prototype.extendUp_ = function() { - this.up({ extend: !0 }); - }), - (we.prototype.extendDown_ = function() { - this.down({ extend: !0 }); - }), - (we.prototype.extendToNextBoundary_ = function() { - this.skip(1, { extend: !0 }); - }), - (we.prototype.extendToPreviousBoundary_ = function() { - this.skip(-1, { extend: !0 }); - }), - (we.prototype.extendToGroupStart_ = function() { - this.setExtent(-this.anchorOffset()); - }), - (we.prototype.extendToGroupEnd_ = function() { - this.setExtent(this.siblings().length - this.anchorOffset()); - }), - (we.prototype.extendToMathFieldStart_ = function() { - this.jumpToMathFieldBoundary(-1, { extend: !0 }); - }), - (we.prototype.extendToMathFieldEnd_ = function() { - this.jumpToMathFieldBoundary(1, { extend: !0 }); - }), - (we.prototype.moveToSuperscript_ = function() { - if ((this.collapseForward(), !this.anchor().superscript)) - if (this.anchor().subscript) - this.anchor().superscript = [Oe()]; - else { - const t = this.sibling(1); - t && t.superscript - ? (this.path[this.path.length - 1].offset += 1) - : t && t.subscript - ? ((this.path[this.path.length - 1].offset += 1), - (this.anchor().superscript = [Oe()])) - : ('limits' !== this.anchor().limits && - (this.siblings().splice( - this.anchorOffset() + 1, - 0, - new te.MathAtom( - this.parent().anchorMode, - 'msubsup', - '​', - this.anchorStyle() - ) - ), - (this.path[ - this.path.length - 1 - ].offset += 1)), - (this.anchor().superscript = [Oe()])); - } - this.path.push({ relation: 'superscript', offset: 0 }), - this.selectGroup_(); - }), - (we.prototype.moveToSubscript_ = function() { - if ((this.collapseForward(), !this.anchor().subscript)) - if (this.anchor().superscript) - this.anchor().subscript = [Oe()]; - else { - const t = this.sibling(1); - t && t.subscript - ? (this.path[this.path.length - 1].offset += 1) - : t && t.superscript - ? ((this.path[this.path.length - 1].offset += 1), - (this.anchor().subscript = [Oe()])) - : ('limits' !== this.anchor().limits && - (this.siblings().splice( - this.anchorOffset() + 1, - 0, - new te.MathAtom( - this.parent().anchorMode, - 'msubsup', - '​', - this.anchorStyle() - ) - ), - (this.path[ - this.path.length - 1 - ].offset += 1)), - (this.anchor().subscript = [Oe()])); - } - this.path.push({ relation: 'subscript', offset: 0 }), - this.selectGroup_(); - }), - (we.prototype.moveToOpposite_ = function() { - const t = { - superscript: 'subscript', - subscript: 'superscript', - denom: 'numer', - numer: 'denom', - }[this.relation()]; - t || this.moveToSuperscript_(), - this.parent()[t] || (this.parent()[t] = [Oe()]), - this.setSelection(0, 'end', t); - }), - (we.prototype.moveBeforeParent_ = function() { - this.path.length > 1 - ? (this.path.pop(), - this.setSelection(this.anchorOffset() - 1)) - : this._announce('plonk'); - }), - (we.prototype.moveAfterParent_ = function() { - if (this.path.length > 1) { - const t = Se(this); - this.path.pop(), - this.setExtent(0), - this._announce('move', t); - } else this._announce('plonk'); - }), - (we.prototype._addCell = function(t) { - const e = this.parent(); - if (e && 'array' === e.type && Array.isArray(e.array)) { - const i = this.relation(); - if (e.array) { - const s = Me(e.array, i); - 'after row' === t || 'before row' === t - ? ((s.col = 0), - (s.row = s.row + ('after row' === t ? 1 : 0)), - e.array.splice(s.row, 0, [[]])) - : ((s.col += 'after column' === t ? 1 : 0), - e.array[s.row].splice(s.col, 0, [])); - const a = Ae(e.array, s); - this.path.pop(), - this.path.push({ - relation: 'cell' + a.toString(), - offset: 0, - }), - this.insertFirstAtom(); - } - } - }), - (we.prototype.convertParentToArray = function() { - const t = this.parent(); - if ('leftright' === t.type) { - t.type = 'array'; - const e = - { - '(': 'pmatrix', - '\\lbrack': 'bmatrix', - '\\lbrace': 'cases', - }[t.leftDelim] || 'matrix', - i = At.getEnvironmentInfo(e), - s = [[t.body]]; - i.parser && Object.assign(t, i.parser(e, [], s)), - (t.tabularMode = i.tabular), - (t.parseMode = this.anchorMode()), - (t.env = { ...i }), - (t.env.name = e), - (t.array = s), - (t.rowGaps = [0]), - delete t.body, - (this.path[this.path.length - 1].relation = 'cell0'); - } - }), - (we.prototype.addRowAfter_ = function() { - this.contentWillChange(), - this.convertParentToArray(), - this._addCell('after row'), - this.contentDidChange(); - }), - (we.prototype.addRowBefore_ = function() { - this.contentWillChange(), - this.convertParentToArray(), - this._addCell('before row'), - this.contentDidChange(); - }), - (we.prototype.addColumnAfter_ = function() { - this.contentWillChange(), - this.convertParentToArray(), - this._addCell('after column'), - this.contentDidChange(); - }), - (we.prototype.addColumnBefore_ = function() { - this.contentWillChange(), - this.convertParentToArray(), - this._addCell('before column'), - this.contentDidChange(); - }), - (we.prototype._applyStyle = function(t) { - if (this.isCollapsed()) return; - const e = this; - function i(t, i) { - let s = !0; - return ( - e.forEachSelected( - e => { - s = s && e[t] === i; - }, - { recursive: !0 } - ), - s - ); - } - t.color && i('color', t.color) && (t.color = 'none'), - t.backgroundColor && - i('backgroundColor', t.backgroundColor) && - (t.backgroundColor = 'none'), - t.fontFamily && - i('fontFamily', t.fontFamily) && - (t.fontFamily = 'none'), - t.series && (t.fontSeries = t.series), - t.fontSeries && - i('fontSeries', t.fontSeries) && - (t.fontSeries = 'auto'), - t.shape && (t.fontShape = t.shape), - t.fontShape && - i('fontShape', t.fontShape) && - (t.fontShape = 'auto'), - t.size && (t.fontSize = t.size), - t.fontSize && - i('fontSize', t.fontSize) && - (t.fontSize = 'size5'), - this.contentWillChange(), - this.forEachSelected(e => e.applyStyle(t), { - recursive: !0, - }), - this.contentDidChange(); - }); - var Be = { EditableMathlist: we, parseMathString: Ee }; - const $e = { - '#': '#', - '|': '|', - '[': 'BracketLeft', - ']': 'BracketRight', - '-': 'Minus', - '+': 'Plus', - '=': 'Equal', - '/': 'Slash', - '\\': 'Backslash', - }, - Re = { - Space: 'Spacebar', - ' ': 'Spacebar', - Escape: 'Esc', - ArrowLeft: 'Left', - ArrowUp: 'Up', - ArrowRight: 'Right', - ArrowDown: 'Down', - Delete: 'Del', - }, - Ke = { - 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', - $: 'Shift-Digit4', - '%': 'Shift-Digit5', - '^': 'Shift-Digit6', - '&': 'Shift-Digit7', - '*': 'Shift-Digit8', - '(': 'Shift-Digit9', - ')': 'Shift-Digit0', - '-': 'Minus', - _: 'Shift-Minus', - '/': 'Slash', - '\\': 'Backslash', - '|': 'Shift-Backslash', - '?': 'Shift-Slash', - ' ': 'Spacebar', - }; - function Ne(t) { - let e, - i = !0; - 'Unidentified' === t.key && - t.target && - (e = Ke[t.target.value] || t.target.value), - e || - ($e[t.key] ? 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(i += n + '{' + Ye(this, this.body, t) + '}') - : '\\char"' === n - ? (i += this.latex + ' ') - : '\\unicode' === n - ? ((i += '\\unicode{"'), - (i += ( - '000000' + this.body.charCodeAt(0).toString(16) - ) - .toUpperCase() - .substr(-6)), - (i += '}')) - : (this.latex || 'string' == typeof this.body) && - (this.latex && '\\' === this.latex[0] - ? ((i += this.latex), - /[a-zA-Z0-9]$/.test(this.latex) && (i += ' ')) - : (i += - n || - ('​' !== this.body - ? this.latex || this.body - : ''))); - break; - case 'mop': - '​' !== this.body && - ('\\mathop' === n - ? (i += n + '{' + Ye(this, this.body, t) + '}') - : '\\operatorname' === n - ? (i += n + '{' + Ye(this, this.body, t) + '}') - : this.latex && '\\' === this.latex[0] - ? ((i += this.latex), - /[a-zA-Z0-9]$/.test(this.latex) && (i += ' ')) - : (i += - n || - ('​' !== this.body - ? this.latex || this.body - : ''))), - this.explicitLimits && - ('limits' === this.limits && (i += '\\limits '), - 'nolimits' === this.limits && (i += '\\nolimits ')); - break; - case 'box': - if ('\\bbox' === n) { - if ( - ((i += n), - isFinite(this.padding) || - void 0 !== this.border || - void 0 !== this.backgroundcolor) - ) { - const t = []; - isFinite(this.padding) && - t.push( - Math.floor(100 * this.padding) / 100 + 'em' - ), - this.border && t.push('border:' + this.border), - this.backgroundcolor && - t.push(ae(this.backgroundcolor)), - (i += `[${t.join(',')}]`); - } - i += `{${Ye(this, this.body, t)}}`; - } else - '\\boxed' === n - ? (i += `\\boxed{${Ye(this, this.body, t)}}`) - : ((i += n), - this.framecolor && - (i += `{${ae(this.framecolor)}}`), - this.backgroundcolor && - (i += `{${ae(this.backgroundcolor)}}`), - (i += `{${Ye(this, this.body, t)}}`)); - break; - case 'spacing': - (i += n), - '\\hspace' === n || '\\hspace*' === n - ? ((i += '{'), - this.width - ? (i += this.width + 'em') - : (i += '0em'), - (i += '}')) - : ((i += ' '), - this.width && (i += this.width + 'em ')); - break; - case 'enclose': - if (((i += n), '\\enclose' === n)) { - i += '{'; - let t = ''; - for (const e in this.notation) - Object.prototype.hasOwnProperty.call( - this.notation, - e - ) && - this.notation[e] && - ((i += t + e), (t = ' ')); - i += '}'; - let e = ''; - (t = ''), - this.backgroundcolor && - 'transparent' !== this.backgroundcolor && - ((e += - t + - 'mathbackground="' + - ae(this.backgroundcolor) + - '"'), - (t = ',')), - this.shadow && - 'auto' !== this.shadow && - ((e += t + 'shadow="' + this.shadow + '"'), - (t = ',')), - 1 !== this.strokeWidth || - 'solid' !== this.strokeStyle - ? ((e += t + this.borderStyle), (t = ',')) - : this.strokeColor && - 'currentColor' !== this.strokeColor && - ((e += - t + - 'mathcolor="' + - ae(this.strokeColor) + - '"'), - (t = ',')), - e && (i += `[${e}]`); - } - i += `{${Ye(this, this.body, t)}}`; - break; - case 'mathstyle': - i += '\\' + this.mathstyle + ' '; - break; - case 'space': - i += this.latex; - break; - case 'placeholder': - i += '\\placeholder{' + (this.value || '') + '}'; - break; - case 'first': - case 'command': - case 'msubsup': - break; - case 'error': - i += this.latex; - } - if (this.superscript) { - let e = Ye(this, this.superscript, t); - 1 === e.length - ? ('′' === e - ? (e = '\\prime ') - : '″' === e && (e = '\\doubleprime '), - (i += '^' + e)) - : (i += '^{' + e + '}'); - } - if (this.subscript) { - const e = Ye(this, this.subscript, t); - 1 === e.length ? (i += '_' + e) : (i += '_{' + e + '}'); - } - return i; - }), - (Qe.plural = function(t, e, i) { - (i = i || {}).type = i.type || 'cardinal'; - const s = Qe.locale.substring(0, 2), - a = 'ordinal' === i.type ? Qe.ordinal : Qe.cardinal; - let o, - n = - 'ordinal' === i.type - ? Qe._ordinalPluralCategories.indexOf(a.select(t)) - : Qe._cardinalPluralCategories.indexOf(a.select(t)); - return ( - Qe.strings[Qe.locale] && (o = Qe.strings[Qe.locale][e]), - !o && Qe.strings[s] && (o = Qe.strings[s][e]), - o || - ((o = Qe.strings.en[e]), - o || (o = e), - (n = - 'ordinal' === i.type - ? Qe._ordinalPluralCategories.indexOf( - Qe._ordinalEnglish.select(t) - ) - : Qe._cardinalPluralCategories.indexOf( - Qe._cardinalEnglish.select(t) - ))), - o.split(';')[n] || o.split(';')[0] - ); - }), - (Qe.merge = function(t, e) { - if (t && e) { - const i = Qe._locale; - (Qe.locale = t), - (Qe.strings[t] = { ...Qe.strings[t], ...e }), - (Qe.locale = i); - } else - t && - !e && - ((e = t), - Object.keys(e).forEach(t => Qe.merge(t, e[t]))); - }), - Object.defineProperty(Qe, 'locale', { - set(t) { - (Qe._locale = t), - (Qe._ordinal = null), - (Qe._cardinal = null); - }, - get: () => ( - Qe._locale || - (Qe._locale = - 'undefined' == typeof navigator - ? 'en' - : navigator.language.slice(0, 5)), - Qe._locale - ), - }), - Object.defineProperty(Qe, 'ordinal', { - get: () => ( - Qe._ordinal || - ((Qe._ordinalEnglish = new Intl.PluralRules('en', { - type: 'ordinal', - })), - (Qe._ordinalEnglishPluralCategories = Qe._ordinalEnglish.resolvedOptions().pluralCategories), - (Qe._ordinal = new Intl.PluralRules(Qe.locale, { - type: 'ordinal', - })), - (Qe._ordinalPluralCategories = Qe._ordinal.resolvedOptions().pluralCategories)), - Qe._ordinal - ), - }), - Object.defineProperty(Qe, 'cardinal', { - get: () => ( - Qe._cardinal || - ((Qe._cardinalEnglish = new Intl.PluralRules('en', { - type: 'cardinal', - })), - (Qe._cardinalEnglishPluralCategories = Qe._cardinalEnglish.resolvedOptions().pluralCategories), - (Qe._cardinal = new Intl.PluralRules(Qe.locale, { - type: 'cardinal', - })), - (Qe._cardinaPluralCategories = Qe._ordinal.resolvedOptions().pluralCategories)), - Qe._cardinal - ), - }), - (Qe.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', - }, - el: { - 'keyboard.tooltip.functions': 'συναρτήσεις', - 'keyboard.tooltip.greek': 'ελληνικά γράμματα', - 'keyboard.tooltip.command': 'Λειτουργία εντολών LaTeX', - 'keyboard.tooltip.numeric': 'Αριθμητικός', - 'keyboard.tooltip.roman': 'Σύμβολα και ρωμαϊκά γράμματα', - 'tooltip.copy to clipboard': 'Αντιγραφή στο πρόχειρο', - 'tooltip.redo': 'Ξανακάνω', - 'tooltip.toggle virtual keyboard': - 'Εναλλαγή εικονικού πληκτρολογίου', - 'tooltip.undo': 'Ξεκάνω', - }, - 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', - }, - }); - const ti = { - 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: 'αβγ', - classes: 'tex-math', - layers: ['lower-greek', 'upper-greek'], - }, - functions: { - tooltip: 'keyboard.tooltip.functions', - layer: 'functions', - label: 'f ()', - classes: 'tex', - layers: ['functions'], - }, - command: { - tooltip: 'keyboard.tooltip.command', - command: 'enterCommandMode', - label: "", - layers: [ - 'lower-command', - 'upper-command', - 'symbols-command', - ], - }, - style: { - tooltip: 'keyboard.tooltip.style', - layer: 'style', - label: 'bi𝔹', - }, - }, - ei = { - '\\varphi ': { label: 'Φ', insert: '\\Phi ' }, - '\\varsigma ': { label: 'Σ', insert: '\\Sigma ' }, - '\\epsilon ': { label: 'Ɛ', insert: '{\\char"0190}' }, - '\\rho ': { label: 'Ρ', insert: '{\\char"3A1}' }, - '\\tau ': { label: 'Τ', insert: '{\\char"3A4}' }, - '\\upsilon ': { label: 'Υ', insert: '\\Upsilon ' }, - '\\theta ': { label: 'Θ', insert: '\\Theta ' }, - '\\iota ': { label: 'Ι', insert: '{\\char"399}' }, - '\\omicron ': { label: 'Ο', insert: '{\\char"39F}' }, - '\\pi ': { label: 'Π', insert: '\\Pi ' }, - '\\alpha ': { label: 'Α', insert: '{\\char"391}' }, - '\\sigma ': { label: 'Σ', insert: '\\Sigma ' }, - '\\delta ': { label: 'Δ', insert: '\\Delta ' }, - '\\phi ': { label: 'Φ', insert: '\\Phi ' }, - '\\gamma ': { label: 'Γ', insert: '\\Gamma ' }, - '\\eta ': { label: 'Η', insert: '{\\char"397}' }, - '\\xi ': { label: 'Ξ', insert: '\\Xi ' }, - '\\kappa ': { label: 'Κ', insert: '{\\char"39A}' }, - '\\lambda ': { label: 'Λ', insert: '\\Lambda ' }, - '\\zeta ': { label: 'Ζ', insert: '{\\char"396}' }, - '\\chi ': { label: 'Χ', insert: '{\\char"3A7}' }, - '\\psi ': { label: 'Ψ', insert: '\\Psi ' }, - '\\omega ': { label: 'Ω', insert: '\\Omega ' }, - '\\beta ': { label: 'Β', insert: '{\\char"392}' }, - '\\nu ': { label: 'Ν', insert: '{\\char"39D}' }, - '\\mu ': { label: 'Μ', insert: '{\\char"39C}' }, - }, - ii = { - 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
    ⁻³⧸₁₈ em', - }, - { - latex: '\\unicode{"203A}\\,\\unicode{"2039}', - insert: '\\,', - aside: 'thin space
    ³⧸₁₈ em', - }, - { - latex: '\\unicode{"203A}\\:\\unicode{"2039}', - insert: '\\:', - aside: 'medium space
    ⁴⧸₁₈ em', - }, - { - latex: '\\unicode{"203A}\\;\\unicode{"2039}', - insert: '\\;', - aside: 'thick space
    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: - '', - command: '"deleteAll"', - }, - ], - '->|': [], - }; - let si = {}; - const ai = { - math: - "\n
    \n
      \n
    • x
      • \n
    • n
      • \n
    • \n \n
    • \n
    • e
      • \n
    • i
      • \n
    • \n
    \n
      \n
    • <
      • \n
    • >
      • \n
    • \n \n
    • \n
    • x ²
      • \n
    • x ⬚
      • \n
    • \n
    \n
      \n
    • (
      • \n
    • )
      • \n
    • \n \n
    • \n
      • \n
    • \n
    • ⌫
    \n \n
      \n
      • \n
      • \n
    • \n \n
    • \n \n
    \n
    \n ", - 'lower-roman': - "\n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n
    • ∞≠
      • \n
    • ,
      • \n
    •  
      • \n \n
    \n
    ", - 'upper-roman': - "\n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n \n
    \n
      \n \n
    • ∞≠
      • \n
    • ;
      • \n
    •  
      • \n \n
    \n
    ", - symbols: - "\n
    \n
      \n \n
    • {
      • \n
    • }
      • \n
    • \n
    • ∈
      • \n
    • ∉
      • \n
    • ℜ
      • \n
    • ℑ
      • \n
    • ┌o┐
      • \n
    • ∇
      • \n
    • ∞
      • \n\n
    \n
      \n \n
    • [
      • \n
    • ]
      • \n
    • \n
    • ⊂
      • \n
    • ⊃
      • \n
    • !
      • \n
    • o′
      • \n
    • └o┘
      • \n
    • ∂
      • \n
    • ∅
      • \n\n
    \n
      \n \n
    • ⟨
      • \n
    • ⟩
      • \n
    • \n
    • ⊆
      • \n
    • ⊇
      • \n
    • \n
    • \n
    • \n
    • ∗
      • \n\n
    • ⌫
      • \n
    \n
      \n \n
    • abc
      • \n
    • ⋅
      • \n
    • :
      • \n
    • ∘
      • \n
    • ≈
      • \n
    • ≠
      • \n
    • ±
      • \n \n
    \n
    ", - 'lower-greek': - "\n
    \n
    • φ
      • \n
    • ς
      • \n
    • ϵ
      • \n
    • ρ
      • \n
    • τ
      • \n
    • υ
      • \n
    • θ
      • \n
    • ι
      • \n
    • ο
      • \n
    • π
      • \n
    \n
    • α
      • \n
    • σ
      • \n
    • δ
      • \n
    • ϕ
      • \n
    • γ
      • \n
    • η
      • \n
    • ξ
      • \n
    • κ
      • \n
    • λ
      • \n
    \n
    • ⇧
      • \n
    • ζ
      • \n
    • χ
      • \n
    • ψ
      • \n
    • ω
      • \n
    • β
      • \n
    • ν
      • \n
    • μ
      • \n
    • ⌫
      • \n
    \n
      \n
    •  
      • \n
    • ,
      • \n
    • ε
      • \n
    • ϑ
      • \n
    • ϰ
      • \n
    • ϖ
      • \n
    • ϱ
      • \n \n
    \n
    ", - 'upper-greek': - "\n
    \n
    • Φ
      • \n
    • Σ
      • \n
    • Ɛ
      • \n
    • Ρ
      • \n
    • Τ
      • \n
    • Υ
      • \n
    • Θ
      • \n
    • Ι
      • \n
    • Ο
      • \n
    • Π
    \n
    • Α
      • \n
    • Σ
      • \n
    • Δ
      • \n
    • Φ
      • \n
    • Γ
      • \n
    • Η
      • \n
    • Ξ
      • \n
    • Κ
      • \n
    • Λ
    \n
    • ⇧
      • \n
    • Ζ
      • \n
    • Χ
      • \n
    • Ψ
      • \n
    • Ω
      • \n
    • Β
      • \n
    • Ν
      • \n
    • Μ
      • \n
    • ⌫
    \n
      \n
    •  
      • \n
    • .
      • \n
    •  
      • \n \n
    \n
    ", - 'lower-command': - "\n
    \n
    \n
    \n
    \n
      \n
    • 01#
      • \n
    • {
      • \n
    • }
      • \n
    • ^
      • \n
    • _
      • \n
    •  
      • \n \n
    \n
    ", - 'upper-command': - "\n
    \n
    \n
    \n
    \n
      \n
    • \n
    • [
      • \n
    • ]
      • \n
    • (
      • \n
    • )
      • \n
    •  
      • \n \n
    \n
    ", - 'symbols-command': - "\n
    \n
    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 0
    \n
    • !
    • @
    • #
    • $
    • %
    • ^
    • &
    • *
    • +
    • =
    \n
      \n
    • \\
      • \n
    • |
      • \n
    • /
      • \n
    • `
      • \n
    • ;
      • \n
    • :
      • \n
    • ?
      • \n
    • '
      • \n
    • \"
      • \n
    • ⌫
      • \n
    \n
      \n
    • abc
      • \n
    • <
      • \n
    • >
      • \n
    • ~
      • \n
    • ,
      • \n
    • .
      • \n
    •  
      • \n \n
    \n
    ", - functions: - "\n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • ⌫
    \n
    • \n
    • (
      • \n
    • )
      • \n
    • \n
    • \n
    •  
      • \n \n
    \n
    ", - style: - "\n
    \n
      \n
      • \n
      • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
      \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
      \n
    • \n
    • \n
    • \n
    • \n
    • \n
    • \n
    \n
      \n
    • \n
    • \n
    • \n\n
    • \n
    • \n
    • \n
    • \n
    \n
    ", - }; - function oi(t, e, i) { - t = t.replace(/(^|[^\\])#@/g, '$1#?'); - const s = he.parseTokens(n(t), 'math', e, i.config.macros), - a = te.decompose( - { mathstyle: 'displaystyle', macros: i.config.macros }, - s - ), - o = N.makeSpan(a, 'ML__base'), - r = N.makeSpan('', 'ML__strut'); - r.setStyle('height', o.height, 'em'); - const l = N.makeSpan('', 'ML__strut--bottom'); - return ( - l.setStyle('height', o.height + o.depth, 'em'), - l.setStyle('vertical-align', -o.depth, 'em'), - N.makeSpan([r, l, o], 'ML__mathlive').toMarkup() - ); - } - function ni(t, e, i) { - let s = "
    "; - const a = e.replace(/\s+/g, ' ').split(' '); - if (a.length > 1) { - const e = Object.assign( - {}, - ti, - t.config.customVirtualKeyboards || {} - ); - for (const t of a) { - if (!e[t]) break; - (s += "
    '); - } - } - return ( - (s += '
    '), - (s += `\n
    \n
    \n \n
    \n
    \n \n
    \n
    \n \n
    \n
    \n `), - "' - ); - } - function ri(t, e, i) { - for (let s = 0; s < e.length; ++s) { - const a = e[s]; - a.getAttribute('data-latex') - ? (a.innerHTML = oi( - a.getAttribute('data-latex').replace(/"/g, '"'), - { '?': '{\\color{#555}{\\tiny \\char"2B1A}}' }, - t - )) - : '' === a.innerHTML && a.getAttribute('data-insert') - ? (a.innerHTML = oi( - a.getAttribute('data-insert').replace(/"/g, '"'), - { '?': '{\\color{#555}{\\tiny \\char"2B1A}}' }, - t - )) - : a.getAttribute('data-content') && - (a.innerHTML = a - .getAttribute('data-content') - .replace(/"/g, '"')), - a.getAttribute('data-aside') && - (a.innerHTML += - ''), - a.getAttribute('data-classes') && - a.classList.add(a.getAttribute('data-classes')); - let o, - n = a.getAttribute('data-insert'); - if ( - (n && (n = n.replace(/"/g, '"')), - n && - ei[n] && - (a.setAttribute('data-shifted', ei[n].label), - a.setAttribute( - 'data-shifted-command', - JSON.stringify([ - 'insertAndUnshiftKeyboardLayer', - ei[n].insert, - ]) - )), - (o = a.getAttribute('data-command') - ? JSON.parse(a.getAttribute('data-command')) - : a.getAttribute('data-insert') - ? [ - 'insert', - a.getAttribute('data-insert'), - { - focus: !0, - feedback: !0, - mode: 'math', - format: 'auto', - resetStyle: !0, - }, - ] - : a.getAttribute('data-latex') - ? [ - 'insert', - a.getAttribute('data-latex'), - { - focus: !0, - feedback: !0, - mode: 'math', - format: 'auto', - resetStyle: !0, - }, - ] - : [ - 'typedText', - a.getAttribute('data-key') || a.textContent, - { - focus: !0, - feedback: !0, - simulateKeystroke: !0, - }, - ]), - i && (o = [i, o]), - a.getAttribute('data-alt-keys')) - ) { - const t = si[a.getAttribute('data-alt-keys')]; - t && - (o = { - default: o, - pressAndHoldStart: [ - 'showAlternateKeys', - a.getAttribute('data-alt-keys'), - t, - ], - pressAndHoldEnd: 'hideAlternateKeys', - }); - } - t._attachButtonHandlers(a, o); - } - } - function li(t, e) { - const i = { - 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~', - }, - }, - s = i[t.config.virtualKeyboardLayout] - ? i[t.config.virtualKeyboardLayout] - : i.qwerty; - let a, - o = e; - o = o.replace( - //g, - "\n
  • \n \n
    • \n
  • \n \n
    • \n
  • \n
    • " - ); - let n = o.match(/()/); - for (; n; ) { - a = ''; - const t = n[2].match(/[a-zA-Z][a-zA-Z0-9-]*=(['"])(.*?)\1/g), - e = {}; - for (const i of t) { - const t = i.match(/([a-zA-Z][a-zA-Z0-9-]*)=(['"])(.*?)\2/); - e[t[1]] = t[3]; - } - let r = s[e.name]; - if ((r || (r = i.qwerty[e.name]), r)) - for (const t of r) { - let i = e.class || ''; - i && (i = ' ' + i), - '~' === t - ? ((a += - "
  • \'\n data-shifted-command=\'"deleteAll"\'\n data-alt-keys=\'delete\' data-command=\'["performWithFeedback","deletePreviousChar"]\'\n >⌫
    • ')) - : ' ' === t - ? (a += "
  • ") - : '^' === t - ? (a += - "
  • ⇧
    • ") - : '/' === t - ? (a += - "
  • ÷
    • ") - : '*' === t - ? (a += - "
  • ×
    • ") - : '-' === t - ? (a += - "
  • −
    • ") - : /tt/.test(i) - ? (a += - "
  • ' + - t + - '
    • ') - : (a += - "
  • " + - t + - '
    • '); - } - (o = o.replace(new RegExp(n[1] + n[2] + n[3]), a)), - (n = o.match(/()/)); - } - return o; - } - var ci = { - make: function(t, e) { - let i = - '\n\n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n '; - ii['foreground-color'] = []; - for (const t of ne) - ii['foreground-color'].push({ - classes: 'small-button', - content: - '', - command: '["applyStyle",{"color":"' + t + '"}]', - }); - ii['background-color'] = []; - for (const t of oe) - ii['background-color'].push({ - classes: 'small-button', - content: - '', - command: - '["applyStyle",{"backgroundColor":"' + t + '"}]', - }); - (si = { ...ii }), - Object.keys(si).forEach(t => { - si[t] = si[t].slice(); - }); - const s = 'abcdefghijklmnopqrstuvwxyz'; - for (let t = 0; t < 26; t++) { - const e = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'[t]; - si[e] || (si[e] = []), - si[e].unshift({ - latex: '\\mathbb{' + e + '}', - aside: 'blackboard', - insert: '\\mathbb{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathbf{' + e + '}', - aside: 'bold', - insert: '\\mathbf{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathsf{' + e + '}', - aside: 'sans', - insert: '\\mathsf{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathtt{' + e + '}', - aside: 'monospace', - insert: '\\mathtt{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathcal{' + e + '}', - aside: 'script', - insert: '\\mathcal{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathfrak{' + e + '}', - aside: 'fraktur', - insert: '\\mathfrak{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathbb{' + s[t] + '}', - aside: 'blackboard', - insert: '\\mathbb{' + s[t] + '}', - }), - si[e].unshift({ - latex: '\\mathbf{' + s[t] + '}', - aside: 'bold', - insert: '\\mathbf{' + s[t] + '}', - }), - si[e].unshift({ - latex: '\\mathsf{' + s[t] + '}', - aside: 'sans', - insert: '\\mathsf{' + s[t] + '}', - }), - si[e].unshift({ - latex: '\\mathcal{' + s[t] + '}', - aside: 'script', - insert: '\\mathcal{' + s[t] + '}', - }), - si[e].unshift({ - latex: '\\mathfrak{' + s[t] + '}', - aside: 'fraktur', - insert: '\\mathfrak{' + s[t] + '}', - }); - } - for (let t = 0; t <= 26; t++) { - const e = s[t]; - si[e] || (si[e] = []), - si[e].unshift({ - latex: '\\mathsf{' + e + '}', - aside: 'sans', - insert: '\\mathbb{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathbf{' + e + '}', - aside: 'bold', - insert: '\\mathbf{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathtt{' + e + '}', - aside: 'monospace', - insert: '\\mathtt{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathfrak{' + e + '}', - aside: 'fraktur', - insert: '\\mathfrak{' + e + '}', - }); - } - for (let t = 0; t < 10; t++) { - const e = '0123456789'[t]; - si[e] || (si[e] = []), - si[e].unshift({ - latex: '\\mathbf{' + e + '}', - aside: 'bold', - insert: '\\mathbf{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathsf{' + e + '}', - aside: 'sans', - insert: '\\mathsf{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathtt{' + e + '}', - aside: 'monospace', - insert: '\\mathtt{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathcal{' + e + '}', - aside: 'script', - insert: '\\mathcal{' + e + '}', - }), - si[e].unshift({ - latex: '\\mathfrak{' + e + '}', - aside: 'fraktur', - insert: '\\mathfrak{' + e + '}', - }); - } - let a = t.config.virtualKeyboards; - a || (a = 'all'), - (a = a.replace( - /\ball\b/i, - 'numeric roman greek functions command' - )); - const o = Object.assign( - {}, - ai, - t.config.customVirtualKeyboardLayers || {} - ), - n = Object.assign( - {}, - ti, - t.config.customVirtualKeyboards || {} - ), - r = a.replace(/\s+/g, ' ').split(' '); - for (const e of r) { - if (!n[e]) break; - let s = n[e].layers || []; - n[e].layer && s.push(n[e].layer), - (s = Array.from(new Set(s))); - for (const n of s) { - if (!o[n]) break; - if ('object' == typeof o[n]) { - let t = ''; - if ( - (o[n].styles && - (t += ``), - o[n].backdrop && - (t += `
    `), - o[n].container && - (t += `
    `), - o[n].rows) - ) { - t += "
    "; - for (const e of o[n].rows) { - t += '
      '; - for (const i of e) - (t += '${ - i.label ? i.label : '' - }`); - t += '
    '; - } - (t += '
    '), - o[n].container && (t += ""), - o[n].backdrop && (t += ""); - } - o[n] = t; - } - (i += - "
    "), - (i += ni(t, a, e)); - const s = 'function' == typeof o[n] ? o[n]() : o[n]; - (i += li(t, s)), (i += '
    '); - } - } - const l = document.createElement('div'); - (l.className = 'ML__keyboard'), - e - ? l.classList.add(e) - : t.config.virtualKeyboardTheme - ? l.classList.add(t.config.virtualKeyboardTheme) - : /android|cros/i.test(navigator.userAgent) && - l.classList.add('material'), - (l.innerHTML = i), - ri( - t, - l.querySelectorAll( - '.keycap, .action, .fnbutton, .bigfnbutton' - ) - ); - const c = l.getElementsByClassName('layer-switch'); - for (let e = 0; e < c.length; ++e) - c[e].classList.contains('shift') - ? t._attachButtonHandlers(c[e], { - pressed: ['shiftKeyboardLayer', 'shift'], - default: [ - 'switchKeyboardLayer', - c[e].getAttribute('data-layer'), - ], - pressAndHoldEnd: 'unshiftKeyboardLayer', - }) - : t._attachButtonHandlers(c[e], { - default: [ - 'switchKeyboardLayer', - c[e].getAttribute('data-layer'), - ], - }); - const h = l.getElementsByClassName('keyboard-layer'); - return ( - Array.from(h).forEach(t => { - t.addEventListener('mousedown', t => { - t.preventDefault(), t.stopPropagation(); - }), - t.addEventListener('touchstart', t => { - t.preventDefault(), t.stopPropagation(); - }); - }), - h[0].classList.add('is-visible'), - window.addEventListener('mouseup', function() { - t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); - }), - window.addEventListener('blur', function() { - t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); - }), - window.addEventListener('touchend', function() { - t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); - }), - window.addEventListener('touchcancel', function() { - t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); - }), - l - ); - }, - makeKeycap: ri, - }; - const hi = { - '−': '-', - '-': '-', - '\\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', - }, - di = { - '\\pm': '+-', - '\\times': 'xx', - '\\colon': ':', - '\\vert': '|', - '\\Vert': '||', - '\\mid': '|', - '\\lbrace': '{', - '\\rbrace': '}', - '\\langle': '(:', - '\\rangle': ':)', - }, - pi = { - '\\pm': '±', - '\\times': '×', - '\\colon': ':', - '\\vert': '|', - '\\Vert': '∥', - '\\mid': '∣', - '\\lbrace': '{', - '\\rbrace': '}', - '\\langle': '⟨', - '\\rangle': '⟩', - '\\lfloor': '⌊', - '\\rfloor': '⌋', - '\\lceil': '⌈', - '\\rceil': '⌉', - '\\vec': '⃗', - '\\acute': '´', - '\\grave': '`', - '\\dot': '˙', - '\\ddot': '¨', - '\\tilde': '~', - '\\bar': '¯', - '\\breve': '˘', - '\\check': 'ˇ', - '\\hat': '^', - }; - function mi(t) { - return t - .replace(/"/g, '"') - .replace(/'/g, ''') - .replace(//g, '>'); - } - function ui(t, e) { - return t && e.generateID ? ' extid="' + t + '"' : ''; - } - function fi(t, e, i) { - let s = !1; - e = e || t.atoms.length; - let a = '', - o = '', - n = -1, - r = -1; - const l = t.atoms[t.index]; - if ( - (t.index < e && - ('mord' === l.type || 'textord' === l.type) && - '0123456789,.'.indexOf(l.body) < 0 && - ((o = l.toMathML(i)), - l.superscript && (n = t.index), - l.subscript && (r = t.index), - (t.index += 1)), - o.length > 0) - ) { - if ( - ((s = !0), - gi(t) && ((n = t.index), (t.index += 1)), - yi(t) && ((r = t.index), (t.index += 1)), - n >= 0 && r >= 0) - ) - (a = '' + o), - (a += Si(t.atoms[r].subscript, 0, 0, i).mathML), - (a += Si(t.atoms[n].superscript, 0, 0, i).mathML), - (a += ''); - else if (n >= 0) { - if (((a = '' + o), gi(t))) { - const e = Si(t.atoms[n].superscript, 0, 0, i).mathML, - s = Si(t.atoms[n + 1].superscript, 0, 0, i).mathML; - a += - ('′' !== e && '′' !== e) || - ('′' !== s && '′' !== s) - ? '′' === e || - '′' === e - ? '′' - : e - : '″'; - } else a += Si(t.atoms[n].superscript, 0, 0, i).mathML; - a += ''; - } else - r >= 0 - ? ((a = '' + o), - (a += Si(t.atoms[r].subscript, 0, 0, i).mathML), - (a += '')) - : (a = o); - ('mi' !== t.lastType && - 'mn' !== t.lastType && - 'mtext' !== t.lastType && - 'fence' !== t.lastType) || - /^(.*)<\/mo>$/.test(a) || - (a = '⁢' + a), - o.endsWith('>f') || o.endsWith('>g') - ? ((a += ' ⁡ '), - (t.lastType = 'applyfunction')) - : (t.lastType = /^(.*)<\/mo>$/.test(a) - ? 'mo' - : 'mi'), - (t.mathML += a); - } - return s; - } - function gi(t) { - return ( - t.index < t.atoms.length && - t.atoms[t.index].superscript && - 'msubsup' === t.atoms[t.index].type - ); - } - function yi(t) { - return ( - t.index < t.atoms.length && - t.atoms[t.index].subscript && - 'msubsup' === t.atoms[t.index].type - ); - } - function bi(t, e, i) { - let s = !1, - a = '', - o = e.atoms[e.index - 1]; - return ( - !!o && - (o.superscript || - o.subscript || - ((gi(e) || yi(e)) && - ((o = e.atoms[e.index]), (e.index += 1))), - !!o && - (o.superscript && o.subscript - ? ((a = '' + t), - (a += Si(o.subscript, 0, 0, i).mathML), - (a += Si(o.superscript, 0, 0, i).mathML), - (a += '')) - : o.superscript - ? ((a = '' + t), - (a += Si(o.superscript, 0, 0, i).mathML), - (a += '')) - : o.subscript && - ((a = '' + t), - (a += Si(o.subscript, 0, 0, i).mathML), - (a += '')), - a.length > 0 && - ((s = !0), (e.mathML += a), (e.lastType = '')), - s)) - ); - } - function xi(t, e, i) { - let s = !1; - e = e || t.atoms.length; - const a = t.index; - let o = ''; - for (; t.index < e && 'text' === t.atoms[t.index].mode; ) - (o += t.atoms[t.index].body ? t.atoms[t.index].body : ' '), - (t.index += 1); - return ( - o.length > 0 && - ((s = !0), - (o = - '' + o + ''), - (t.mathML += o), - (t.lastType = 'mtext')), - s - ); - } - function ki(t, e, i) { - let s = !1; - e = e || t.atoms.length; - const a = t.index; - let o = '', - n = (function(t) { - let e = -1, - i = t.index, - s = !1, - a = !1; - for (; i < t.atoms.length && !s && !a; ) - (s = - 'mord' !== t.atoms[i].type || - '0123456789,.'.indexOf(t.atoms[i].body) < 0), - (a = !s && t.atoms[i].superscript), - i++; - return a && (e = i - 1), e; - })(t); - for ( - n >= 0 && n < e && (e = n); - t.index < e && - 'mord' === t.atoms[t.index].type && - '0123456789,.'.indexOf(t.atoms[t.index].body) >= 0; - - ) - (o += t.atoms[t.index].body), (t.index += 1); - return ( - o.length > 0 && - ((s = !0), - (o = '' + o + ''), - n < 0 && gi(t) && ((n = t.index), (t.index += 1)), - n >= 0 && - ((o = '' + o), - (o += Si(t.atoms[n].superscript, 0, 0, i).mathML), - (o += '')), - (t.mathML += o), - (t.lastType = 'mn')), - s - ); - } - function vi(t, e, i) { - let s = !1; - e = e || t.atoms.length; - let a = '', - o = ''; - if (t.index < e && 'mopen' === t.atoms[t.index].type) { - let n = !1, - r = 0; - const l = t.index; - let c = -1, - h = l + 1; - for (; h < e && !n; ) - 'mopen' === t.atoms[h].type - ? (r += 1) - : 'mclose' === t.atoms[h].type && (r -= 1), - -1 === r && ((n = !0), (c = h)), - (h += 1); - n && - ((a = ''), - (a += Ai(t.atoms[l], i)), - (a += Si(t.atoms, l + 1, c, i).mathML), - (a += Ai(t.atoms[c], i)), - (a += ''), - ('mi' !== t.lastType && - 'mn' !== t.lastType && - 'mfrac' !== t.lastType && - 'fence' !== t.lastType) || - (a = '⁢' + a), - (t.index = c + 1), - bi(a, t, i) && ((s = !0), (t.lastType = ''), (a = '')), - (o = 'fence')); - } - return ( - a.length > 0 && ((s = !0), (t.mathML += a), (t.lastType = o)), s - ); - } - function wi(t, e, i) { - let s = !1; - e = e || t.atoms.length; - let a = '', - o = ''; - const n = t.atoms[t.index]; - if (t.index < e && ('mbin' === n.type || 'mrel' === n.type)) - (a += t.atoms[t.index].toMathML(i)), (t.index += 1), (o = 'mo'); - else if (t.index < e && 'mop' === n.type) { - if ('limits' === n.limits && (n.superscript || n.subscript)) { - const t = Ai(n, i); - n.superscript && n.subscript - ? ((a += - ('nolimits' !== n.limits - ? '' - : '') + t), - (a += Si(n.subscript, 0, 0, i).mathML), - (a += Si(n.superscript, 0, 0, i).mathML), - (a += - 'nolimits' !== n.limits - ? '' - : '')) - : n.superscript - ? ((a += - ('nolimits' !== n.limits ? '' : '') + - t), - (a += Si(n.superscript, 0, 0, i).mathML), - (a += - 'nolimits' !== n.limits ? '' : '')) - : ((a += - ('nolimits' !== n.limits - ? '' - : '') + t), - (a += Si(n.subscript, 0, 0, i).mathML), - (a += - 'nolimits' !== n.limits - ? '' - : '')), - (o = 'mo'); - } else { - const e = t.atoms[t.index], - n = 0 === e.latex.indexOf('\\operatorname'), - r = n - ? '' + - Mi(e.body) + - '' - : Ai(e, i); - (a += r), - (t.index += 1), - bi(a, t, i) && ((s = !0), (t.lastType = ''), (a = '')), - (t.index -= 1), - n || /^(.*)<\/mo>$/.test(r) - ? (o = n ? 'mi' : 'mo') - : ((a += '⁡'), - (o = 'applyfunction')); - } - ('mi' !== t.lastType && 'mn' !== t.lastType) || - /^(.*)<\/mo>$/.test(a) || - (a = '⁢' + a), - (t.index += 1); - } - return ( - a.length > 0 && ((s = !0), (t.mathML += a), (t.lastType = o)), s - ); - } - function Si(t, e, i, s) { - const a = { atoms: t, index: e || 0, mathML: '', lastType: '' }; - if ( - ((i = i || (t ? t.length : 0)), - 'number' == typeof t || 'boolean' == typeof t) - ) - a.mathML = t.toString(); - else if ('string' == typeof t) a.mathML = t; - else if (t && 'function' == typeof t.toMathML) - a.mathML = t.toMathML(s); - else if (Array.isArray(t)) { - let t = 0; - for (; a.index < i; ) - if ( - xi(a, i, s) || - ki(a, i, s) || - fi(a, i, s) || - wi(a, i, s) || - vi(a, i, s) - ) - t += 1; - else if (a.index < i) { - let e = a.atoms[a.index].toMathML(s); - 'mn' === a.lastType && - e.length > 0 && - 'genfrac' === a.atoms[a.index].type && - (e = '⁤' + e), - 'genfrac' === a.atoms[a.index].type - ? (a.lastType = 'mfrac') - : (a.lastType = ''), - e.length > 0 && ((a.mathML += e), (t += 1)), - (a.index += 1); - } - t > 1 && (a.mathML = '' + a.mathML + ''); - } - return a; - } - function Ai(t, e) { - let i = ''; - const s = Mi(t.body); - return s && (i = '' + s + ''), i; - } - function Mi(t) { - if (!t) return ''; - if ('string' == typeof t) return mi(t); - if (!Array.isArray(t) && 'string' == typeof t.body) - return mi(t.body); - let e = ''; - for (const i of t) 'string' == typeof i.body && (e += i.body); - return mi(e); - } - (te.MathAtom.prototype.toMathML = function(t) { - const e = { - '\\exponentialE': 'ⅇ', - '\\imaginaryI': 'ⅈ', - '\\differentialD': 'ⅆ', - '\\capitalDifferentialD': 'ⅅ', - '\\alpha': 'α', - '\\pi': 'π', - '\\infty': '∞', - '\\forall': '∀', - '\\nexists': '∄', - '\\exists': '∃', - '\\hbar': 'ℏ', - '\\cdotp': '⋅', - '\\ldots': '…', - '\\cdots': '⋯', - '\\ddots': '⋱', - '\\vdots': '⋮', - '\\ldotp': '.', - }, - i = { - '\\!': -3 / 18, - '\\ ': 6 / 18, - '\\,': 3 / 18, - '\\:': 4 / 18, - '\\;': 5 / 18, - '\\enspace': 0.5, - '\\quad': 1, - '\\qquad': 2, - '\\enskip': 0.5, - }; - let s, - a, - o, - n, - r, - l, - c = '', - h = '', - d = - { - cal: 'script', - frak: 'fraktur', - bb: 'double-struck', - scr: 'script', - cmtt: 'monospace', - cmss: 'sans-serif', - }[this.fontFamily || this.font] || ''; - d && (d = ' mathvariant="' + d + '"'); - const p = this.latex ? this.latex.trim() : null; - if ('text' === this.mode) - c = '' + this.body + ''; - else - switch (this.type) { - case 'first': - break; - case 'group': - case 'root': - c = Si(this.body, 0, 0, t).mathML; - break; - case 'array': - if ( - (((this.lFence && '.' !== this.lFence) || - (this.rFence && '.' !== this.rFence)) && - ((c += ''), - this.lFence && - '.' !== this.lFence && - (c += - '' + - (pi[this.lFence] || this.lFence) + - '')), - (c += '' + - Si(this.array[a][s], 0, 0, t).mathML + - ''; - c += ''; - } - (c += ''), - ((this.lFence && '.' !== this.lFence) || - (this.rFence && '.' !== this.rFence)) && - (this.rFence && - '.' !== this.rFence && - (c += - '' + - (pi[this.lFence] || this.rFence) + - ''), - (c += '')); - break; - case 'genfrac': - (this.leftDelim || this.rightDelim) && (c += ''), - this.leftDelim && - '.' !== this.leftDelim && - (c += - '' + - (pi[this.leftDelim] || this.leftDelim) + - ''), - this.hasBarLine - ? ((c += ''), - (c += - Si(this.numer, 0, 0, t).mathML || - ' '), - (c += - Si(this.denom, 0, 0, t).mathML || - ' '), - (c += '')) - : ((c += ''), - (c += - '' + - Si(this.numer, 0, 0, t).mathML + - ''), - (c += - '' + - Si(this.denom, 0, 0, t).mathML + - ''), - (c += '')), - this.rightDelim && - '.' !== this.rightDelim && - (c += - '' + - (pi[this.rightDelim] || this.rightDelim) + - ''), - (this.leftDelim || this.rightDelim) && - (c += ''); - break; - case 'surd': - this.index - ? ((c += ''), - (c += Si(this.body, 0, 0, t).mathML), - (c += Si(this.index, 0, 0, t).mathML), - (c += '')) - : ((c += ''), - (c += Si(this.body, 0, 0, t).mathML), - (c += '')); - break; - case 'leftright': - (c = ''), - this.leftDelim && - '.' !== this.leftDelim && - (c += - '' + - (pi[this.leftDelim] || this.leftDelim) + - ''), - this.body && (c += Si(this.body, 0, 0, t).mathML), - this.rightDelim && - '.' !== this.rightDelim && - (c += - '' + - (pi[this.rightDelim] || this.rightDelim) + - ''), - (c += ''); - break; - case 'sizeddelim': - case 'delim': - c += - '' + - (pi[this.delim] || this.delim) + - ''; - break; - case 'accent': - (c += ''), - (c += Si(this.body, 0, 0, t).mathML), - (c += '' + (pi[p] || this.accent) + ''), - (c += ''); - break; - case 'line': - case 'overlap': - break; - case 'overunder': - (r = this.overscript), - (n = this.underscript), - r && n - ? (l = this.body) - : r - ? ((l = this.body), - this.body[0] && this.body[0].underscript - ? ((n = this.body[0].underscript), - (l = this.body[0].body)) - : this.body[0] && - 'first' === this.body[0].type && - this.body[1] && - this.body[1].underscript && - ((n = this.body[1].underscript), - (l = this.body[1].body))) - : n && - ((l = this.body), - this.body[0] && this.body[0].overscript - ? ((r = this.body[0].overscript), - (l = this.body[0].body)) - : this.body[0] && - 'first' === this.body[0].type && - this.body[1] && - this.body[1].overscript && - ((r = this.body[1].overscript), - (l = this.body[1].body))), - r && n - ? ((c += - '' + - Si(l, 0, 0, t).mathML), - (c += Si(n, 0, 0, t).mathML), - (c += Si(r, 0, 0, t).mathML), - (c += '')) - : r - ? ((c += - '' + - Si(l, 0, 0, t).mathML), - (c += Si(r, 0, 0, t).mathML), - (c += '')) - : n && - ((c += - '' + - Si(l, 0, 0, t).mathML), - (c += Si(n, 0, 0, t).mathML), - (c += '')); - break; - case 'placeholder': - case 'mord': { - c = - e[p] || - p || - ('string' == typeof this.body ? this.body : ''); - const i = p - ? p.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) - : null; - i - ? (c = '&#x' + i[1] + ';') - : c.length > 0 && - '\\' === c.charAt(0) && - (c = - 'string' == typeof this.body && - this.body.charCodeAt(0) > 255 - ? '&#x' + - ( - '000000' + - this.body.charCodeAt(0).toString(16) - ).substr(-4) + - ';' - : 'string' == typeof this.body - ? this.body.charAt(0) - : this.body); - const s = /\d/.test(c) ? 'mn' : 'mi'; - c = - '<' + - s + - d + - ui(this.id, t) + - '>' + - mi(c) + - ''; - break; - } - case 'mbin': - case 'mrel': - case 'textord': - case 'minner': - c = - p && e[p] - ? '' + e[p] + '' - : p && pi[p] - ? '' + pi[p] + '' - : Ai(this, t); - break; - case 'mpunct': - c = - '' + - (pi[p] || p) + - ''; - break; - case 'mop': - '​' !== this.body && - ((c = ''), - (c += - '\\operatorname' === p - ? this.body - : p || this.body), - (c += '')); - break; - case 'mathstyle': - break; - case 'box': - (c = '' + - Si(this.body, 0, 0, t).mathML + - ''); - break; - case 'spacing': - c += ''; - break; - case 'enclose': - c = '' + - Si(this.body, 0, 0, t).mathML + - ''; - break; - case 'space': - c += ' '; - } - return c; - }), - (te.toMathML = function(t, e) { - return Si(t, 0, 0, e).mathML; - }); - const Ci = { - '\\imaginaryI': 'ⅈ', - '\\imaginaryJ': 'ⅉ', - '\\pi': 'π', - '\\exponentialE': 'ℯ', - '﹢': '+', - '＋': '+', - '−': '-', - '-': '-', - '﹣': '-', - '－': '-', - '\\times': '*', - '\\cdot': '*', - '⨉': '*', - '️✖': '*', - '️×': '*', - '.': '*', - '÷': '/', - '⁄': '/', - '／': '/', - '!': 'factorial', - '\\mp': 'minusplus', - '\\ne': '!=', - '\\coloneq': ':=', - '\\questeq': '?=', - '\\approx': 'approx', - '\\cong': 'congruent', - '\\sim': 'similar', - '\\equiv': 'equiv', - '\\pm': 'plusminus', - '\\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', - '\\ominus': 'ominus', - '\\odot': 'odot', - '\\otimes': 'otimes', - '\\zeta': 'Zeta', - '\\Gamma': 'Gamma', - '\\min': 'min', - '\\max': 'max', - '\\mod': 'mod', - '\\lim': 'lim', - '\\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', - '\\to': 'to', - '\\gets': 'gets', - '\\in': 'elementof', - '\\notin': '!elementof', - '\\ni': 'ownedby', - '\\owns': 'ownedby', - '\\subset': 'subset', - '\\supset': 'superset', - '\\complement': 'complement', - '\\rightarrow': 'shortLogicalImplies', - '\\leftarrow': 'shortLogicalImpliedBy', - '\\leftrightarrow': 'shortLogicalEquivalent', - '\\longrightarrow': 'logicalImplies', - '\\longleftarrow': 'logicalImpliedBy', - '\\longleftrightarrow': 'logicalEquivalent', - '\\Rightarrow': 'shortImplies', - '\\Leftarrow': 'shortImpliedBy', - '\\Leftrightarrow': 'shortEquivalent', - '\\implies': 'implies', - '\\Longrightarrow': 'implies', - '\\impliedby': 'impliedBy', - '\\Longleftarrow': 'impliedBy', - '\\iff': 'equivalent', - '\\Longleftrightarrow': 'equivalent', - }, - _i = { - '+': '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', - }, - Ti = { - 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', - 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', - arcsec: '\\arcsec %0', - arccsc: '\\arccsc %0', - arsinh: '\\arsinh %0', - arcosh: '\\arcosh %0', - artanh: '\\artanh %0', - arcsch: '\\arcsch %0', - arsech: '\\arsech %0', - arcoth: '\\arcoth %0', - ln: '\\ln%_%^ %', - log: '\\log%_%^ %', - lg: '\\lg %', - lb: '\\lb %', - sum: '\\sum%_%^ %0', - prod: '\\prod%_%^ %0', - Zeta: '\\zeta%_%^ %', - Gamma: '\\Gamma %', - min: '\\min%_%^ %', - max: '\\max%_%^ %', - mod: '\\mod%_%^ %', - lim: '\\lim%_%^ %', - 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}', - sqrt: '\\sqrt{%0}', - lcm: '\\operatorname{lcm}%', - gcd: '\\operatorname{gcd}%', - erf: '\\operatorname{erf}%', - erfc: '\\operatorname{erfc}%', - randomReal: '\\operatorname{randomReal}%', - randomInteger: '\\operatorname{randomInteger}%', - and: '%0 \\land %1', - or: '%0 \\lor %1', - xor: '%0 \\oplus %1', - not: '%0 \\lnot %1', - 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!!', - }, - Li = { - degree: 880, - nabla: 740, - curl: 740, - partial: 740, - differentialD: 740, - capitalDifferentialD: 740, - '**': 720, - odot: 710, - not: 680, - div: 660, - solidus: 660, - '/': 660, - setminus: 650, - '%': 640, - otimes: 410, - union: 350, - intersection: 350, - '*': 390, - ast: 390, - '.': 390, - oplus: 300, - ominus: 300, - '+': 275, - '-': 275, - '+-': 275, - '-+': 275, - circle: 265, - circledast: 265, - circledcirc: 265, - star: 265, - '..': 263, - to: 262, - in: 262, - '|': 261, - congruent: 265, - equiv: 260, - '=': 260, - '!=': 255, - '?=': 255, - similar: 250, - approx: 247, - '<': 245, - '>': 243, - '>=': 242, - '≥': 242, - '<=': 241, - complement: 240, - subset: 240, - superset: 240, - elementof: 240, - '!elementof': 240, - exists: 230, - '!exists': 230, - forall: 230, - and: 200, - xor: 195, - or: 190, - suchThat: 110, - ':': 100, - assign: 80, - ':=': 80, - therefore: 70, - because: 70, - 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 Fi(t, e) { - return Array.isArray(t.arg) ? t.arg[e] : void 0; - } - function Di(t) { - return (t && Li[t]) || -1; - } - function zi(t) { - return /=|=>/.test(t) ? 'right' : 'left'; - } - function Ei(t) { - if ('f' === t || 'g' === t) return !0; - const e = Ti[t]; - return !!e && !!/%[^01_^]?/.test(e); - } - function qi(t) { - t = (t || '').trim(); - let e = Ci[t]; - if (!e) - if (/^\\[^{}]+$/.test(t)) { - const i = At.getInfo(t, 'math', {}); - e = (i && i.value) || t.slice(1); - } else e = t; - return e; - } - function Ii(t) { - if (!t) return null; - const e = qi(Ki(t)), - i = [Di(e), zi(e)]; - return i[0] <= 0 ? null : i; - } - function Pi(t) { - return null !== Ii(t); - } - const Oi = { - '\\lfloor\\rfloor': 'floor', - '\\lceil\\rceil': 'ceil', - '\\vert\\vert': 'abs', - '\\lvert\\rvert': 'abs', - '||': 'abs', - '\\Vert\\Vert': 'norm', - '\\lVert\\rVert': 'norm', - '\\ulcorner\\urcorner': 'ucorner', - '\\llcorner\\lrcorner': 'lcorner', - '\\langle\\rangle': 'angle', - '\\lgroup\\rgroup': 'group', - '\\lmoustache\\rmoustache': 'moustache', - '\\lbrace\\rbrace': 'brace', - }, - Bi = { - '!': 'factorial', - '\\dag': 'dagger', - '\\dagger': 'dagger', - '\\ddagger': 'dagger2', - '\\maltese': 'maltese', - '\\backprime': 'backprime', - '\\backdoubleprime': 'backprime2', - '\\prime': 'prime', - '\\doubleprime': 'prime2', - '\\$': '$', - '\\%': '%', - '\\_': '_', - '\\degree': 'degree', - }, - $i = { - '+': 'add', - '-': 'add', - '*': 'multiply', - '=': 'equal', - ',': 'list', - ';': 'list2', - and: 'and', - or: 'or', - xor: 'xor', - union: 'union', - shortLogicalEquivalent: 'logicalEquivalent', - logicalEquivalent: 'logicalEquivalent', - shortEquivalent: 'equivalent', - equivalent: 'equivalent', - }, - Ri = { ',': 'list', ';': 'list2' }; - function Ki(t) { - if ('string' == typeof t) return t; - if (Array.isArray(t)) { - let e = ''; - for (const i of t) e += Ki(i); - return e; - } - if ( - t.latex && - !/^\\math(op|bin|rel|open|punct|ord|inner)/.test(t.latex) - ) - return t.latex.trim(); - if ('leftright' === t.type) return ''; - if ('string' == typeof t.body) return t.body; - if (Array.isArray(t.body)) { - let e = ''; - for (const i of t.body) e += Ki(i); - return e; - } - return ''; - } - function Ni(t) { - return 'string' == typeof t.sym - ? (function(t) { - let e = Ti[t]; - if (e) - return e - .replace('%1', '') - .replace('%0', '') - .replace('%', ''); - if (t.length > 1) { - const i = At.getInfo('\\' + t, 'math'); - !i || - (i.fontFamily && - 'cmr' !== i.fontFamily && - 'ams' !== i.fontFamily) || - (e = '\\' + t); - } - return e || (e = At.unicodeStringToLatex('math', t)), e; - })(t.sym) || t.sym - : ''; - } - function Wi(t) { - return parseFloat(t.num); - } - function Hi(t) { - return 'object' == typeof t && void 0 !== t.num; - } - function Vi(t) { - let e = 0; - return ( - Hi(t) && - (e = - 'object' == typeof t.num - ? void 0 !== t.num.re - ? hs(t.num.re) - : 0 - : parseFloat(t.num)), - e - ); - } - function Ui(t) { - let e = 0; - return ( - Hi(t) && - 'object' == typeof t.num && - (e = void 0 !== t.num.im ? hs(t.num.im) : 0), - e - ); - } - function ji(t) { - return t && void 0 !== t.sup; - } - function Gi(t) { - return t && void 0 !== t.sub; - } - function Zi(t, e, i) { - let s = !1; - const a = t.atoms[t.index]; - return a && a.type === e && (s = void 0 === i || Ki(a) === i), s; - } - function Xi(t, ...e) { - const i = { fn: t }; - if (e) { - const t = []; - for (const i of e) i && t.push(i); - t.length > 0 && (i.arg = t); - } - return i; - } - function Ji(t) { - return 'number' == typeof t - ? { num: t.toString() } - : 'string' == typeof t - ? { num: t } - : 'object' == typeof t - ? { num: t } - : void 0; - } - function Yi(t) { - if (Hi(t)) { - const e = Vi(t), - i = Ui(t); - return ( - 0 !== i - ? 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(s.arg = o.arg) - : o && (s.arg = [o]), - (e.ast = s); - } else - (e.ast = s.toAST(i)), - 'ⅈ' === e.ast.sym && - (e.ast = Ji({ im: '1' })), - (e = ts(e)); - e = es(e, i); - } else if ('textord' === s.type) { - if ( - !Pi(s) && - !At.RIGHT_DELIM[ - s.latex ? s.latex.trim() : s.body - ] - ) - if (Ei(a)) { - e.ast = { fn: a }; - const s = (e = ts(e, i)).ast; - (e.index += 1), - (s.arg = [t(e, i).ast]), - (e.ast = s), - (e = es(e, i)); - } else - (e.ast = s.toAST(i)), - void 0 === s.superscript && - (e.index += 1), - (e = es((e = ts(e, i)), i)); - } else if ('mop' === s.type) { - if ( - (/^\\(mathop|operatorname|operatorname\*)/.test( - s.latex - ) || - Ei(a)) && - !Pi(s) - ) - if ( - ((e.ast = { - fn: /^\\(mathop|operatorname|operatorname\*)/.test( - s.latex - ) - ? Ki(s.body) - : a, - }), - ji((e = ts(e, i)).ast)) - ) { - const s = { - 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 (-1 === Wi(e.ast.sup) && s[a]) - e.ast = Xi(s[a], t(e, i).ast); - else { - const s = e.ast; - (s.arg = [t(e, i).ast]), (e.ast = s); - } - } else { - const s = e.ast, - a = t(e, i).ast; - a && /^(list0|list|list2)$/.test(a.fn) - ? (s.arg = a.arg) - : a && (s.arg = [a]), - (e.ast = s); - } - } else if ('array' === s.type) - (e.index += 1), (e.ast = s.toAST(i)); - else if ('group' === s.type) - (e.index += 1), (e.ast = s.toAST(i)); - else { - if ('mclose' === s.type) return e; - if ('error' === s.type) - return ( - (e.index += 1), - (e.ast = { error: s.latex }), - e - ); - } - } - if (void 0 === e.ast) { - const t = is(e, '(', ')', i) || is(e, null, null, i); - t - ? (e = t) - : Pi(s) || - ('placeholder' === s.type - ? (e.ast = Ji(0)) - : ((e.ast = { text: '?' }), - (e.ast.error = - "Unexpected token '" + s.type + "'"), - s.latex - ? (e.ast.latex = s.latex) - : s.body && - s.toLatex && - (e.ast.latex = s.toLatex())), - (e.index += 1)); - } - if ( - ((s = e.atoms[e.index]), - s && - ('mord' === s.type || - 'surd' === s.type || - 'mop' === s.type || - 'mopen' === s.type || - 'sizeddelim' === s.type || - 'leftright' === s.type)) - ) { - if ('sizeddelim' === s.type) - for (const t in At.RIGHT_DELIM) - if (s.delim === At.RIGHT_DELIM[t]) - return (e.index += 1), e; - if ( - ('mord' === s.type || - 'textord' === s.type || - 'mop' === s.type) && - Pi(s) - ) - return e; - const a = e.ast; - (e.ast = {}), - (e = t(e, i)) && e.ast && a - ? (Ei(a.fn) && void 0 === a.arg) || - (Array.isArray(a.arg) && 0 === a.arg.length) - ? 'list2' === e.ast.fn || - 'list' === e.ast.fn - ? (e.ast = Xi(a.fn, e.ast.arg)) - : (e.ast = Xi('multiply', a, e.ast)) - : 'multiply' === e.ast.fn - ? e.ast.arg.unshift(a) - : 0 === Ui(a) && - 0 !== Vi(a) && - 1 === Ui(e.ast) && - 0 === Vi(e.ast) - ? (e.ast = Ji({ im: Vi(a).toString() })) - : (e.ast = Xi('multiply', a, e.ast)) - : (e.ast = a); - } - return e; - })(t, e).ast, - s = !1; - const a = t.minPrec; - for (; !s; ) { - const o = t.atoms[t.index], - n = as(t); - let r, l; - if ( - ((s = !o || 'text' === o.mode || (!n && !Pi(o))), - s || (([r, l] = n ? [Di(n), zi(n)] : Ii(o)), (s = r < a)), - !s) - ) { - const a = n || qi(Ki(o)); - if ( - ((t.minPrec = 'left' === l ? r + 1 : r), - (t.index += 1), - '|' === a) - ) - if ( - void 0 !== o.subscript || - (t.atoms[t.index] && - void 0 !== t.atoms[t.index].subscript && - 'msubsup' === t.atoms[t.index].type) - ) { - t.ast = {}; - const s = ts(t, e).ast.sub; - if ( - ((i = Xi('bind', i)), - s && 'equal' === s.fn && i.arg) - ) - i.arg.push(Fi(s, 0)), i.arg.push(Fi(s, 1)); - else if ( - s && - i.arg && - ('list' === s.fn || 'list2' === s.fn) - ) { - let t = { sym: 'x' }; - for (let e = 0; e < s.arg.length; e++) - 'equal' === s.arg[e].fn - ? ((t = Fi(s.arg[e], 0)), - i.arg.push(t), - i.arg.push(Fi(s.arg[e], 1))) - : (i.arg.push(t), i.arg.push(s.arg[e])); - } else - s && (i.arg.push({ sym: 'x' }), i.arg.push(s)); - } else s = !0; - else { - const s = os(t, e).ast; - let o = Ri[a]; - o && i && i.fn !== o && (i = Xi(o, i)), - '-' === a - ? i && i.arg && 'add' === i.fn - ? void 0 !== s && i.arg.push(Yi(s)) - : (i = - i && 'subtract' === i.fn - ? Xi( - 'add', - Fi(i, 0), - Yi(Fi(i, 1)), - Yi(s) - ) - : !Hi(i) || - ji(i) || - !Hi(s) || - ji(s) || - (void 0 !== s.num.re && - '0' !== s.num.re) || - void 0 === s.num.im - ? Xi('subtract', i, s) - : { - num: { - re: i.num, - im: (-parseFloat( - s.num.im - )).toString(), - }, - }) - : ((o = $i[a]), - 'add' === o && i && 'subtract' === i.fn - ? (i = Xi( - 'add', - Fi(i, 0), - Yi(Fi(i, 1)), - s - )) - : o && i && i.fn === o && !ji(i) - ? void 0 !== s && - (s.fn === o && !ji(s) && s.arg - ? (i.arg = [...i.arg, ...s.arg]) - : i.arg && i.arg.push(s)) - : o && s && s.arg && s.fn === o - ? (s.arg.unshift(i), (i = s)) - : (i = - 'multiply' === o && - Hi(i) && - !ji(i) && - s && - 10 === Wi(s) && - Hi(s.sup) - ? Ji( - Wi(i) * - Math.pow( - 10, - Wi(s.sup) - ) - ) - : 'add' === o && - Hi(i) && - !ji(i) && - s && - 0 !== Ui(s) && - !ji(s) - ? { - num: { - re: i.num, - im: s.num.im, - }, - } - : Xi(o || _i[a] || a, i, s))); - } - } - } - return (t.ast = i), t; - } - function ns(t) { - if (!t) return []; - let e; - if (Array.isArray(t)) { - e = []; - for (const i of t) { - const t = ns(i); - e = e.concat(t); - } - } else { - if ('spacing' === t.type) return []; - 'first' === t.type || 'box' === t.type - ? (e = ns(t.body)) - : (t.body && Array.isArray(t.body) && (t.body = ns(t.body)), - t.superscript && - Array.isArray(t.superscript) && - (t.superscript = ns(t.superscript)), - t.subscript && - Array.isArray(t.subscript) && - (t.subscript = ns(t.subscript)), - t.index && - Array.isArray(t.index) && - (t.index = ns(t.index)), - t.denom && - Array.isArray(t.denom) && - (t.denom = ns(t.denom)), - t.numer && - Array.isArray(t.numer) && - (t.numer = ns(t.numer)), - t.array && - Array.isArray(t.array) && - (t.array = t.array.map(t => t.map(t => ns(t)))), - (e = [t])); - } - return e; - } - function rs(t, e) { - return (function(t, e) { - (t.index = t.index || 0), (t.ast = void 0); - const i = []; - for (; t.atoms[t.index]; ) - if ('text' === t.atoms[t.index].mode) { - let e = ''; - for ( - ; - t.atoms[t.index] && - 'text' === t.atoms[t.index].mode; - - ) - (e += t.atoms[t.index].body), (t.index += 1); - i.push(e); - } else { - const s = os(t, e).ast; - if (!s) return; - i.push(s); - } - return i.length > 1 ? Xi('text', ...i) : i[0] || void 0; - })({ atoms: ns(t) }, e); - } - function ls(t) { - const e = Array.prototype.slice.call(arguments); - e.shift(), (t = t || '.. '); - let i = ''; - if (e.length > 0) { - '.' !== t[0] && (i += t[0]); - let s = ''; - for (const a of e) (i += s + a), (s = t[2]); - '.' !== t[1] && (i += t[1]); - } - return i; - } - function cs(t, e) { - const i = t.length; - t = t.substr(0, e.precision - 2); - for (let i = 0; i < t.length - 16; i++) { - const s = t.substr(0, i); - for (let a = 0; a < 17; a++) { - const o = t.substr(i, a + 1), - n = Math.floor((t.length - s.length) / o.length); - if (n > 1 && (s + o.repeat(n + 1)).startsWith(t)) - return '0' === o - ? s.replace(/(\d{3})/g, '$1' + e.groupSeparator) - : s.replace(/(\d{3})/g, '$1' + e.groupSeparator) + - e.beginRepeatingDigits + - o.replace( - /(\d{3})/g, - '$1' + e.groupSeparator - ) + - e.endRepeatingDigits; - } - } - return ( - i !== t.length && (t += '\\ldots'), - t.replace(/(\d{3})/g, '$1' + e.groupSeparator) - ); - } - function hs(t) { - return parseFloat(parseFloat(t).toPrecision(15)); - } - function ds(t, e) { - let i = ''; - if ('number' == typeof e.precision) { - if ('number' != typeof t) { - let i = '', - s = ''; - if ( - ('-' === t[0] - ? ((i = '-'), (t = t.substr(1))) - : '+' === t[0] && (t = t.substr(1)), - t.indexOf('.') >= 0) - ) { - const a = t.match(/(\d*).(\d*)([e|E]([-+]?[0-9]*))?/), - o = a[1], - n = a[2].substring( - 0, - Math.min(e.precision - o.length, a[2].length) - ); - if (((s = a[4] || ''), '0' === o)) { - let s = 0; - for (; '0' === n[s] && s < n.length; ) s += 1; - let a = ''; - if (s <= 4) - (a = '0' + e.decimalMarker), - (a += n.substr(0, s)), - (a += cs(t.substr(a.length), e)); - else if (s + 1 >= e.precision) (a = '0'), (i = ''); - else { - a = t[s]; - const i = cs(t.substr(s + 1), e); - i && (a += e.decimalMarker + i); - } - '0' !== a && - (t.length - 1 > e.precision && - !a.endsWith('}') && - !a.endsWith('\\ldots') && - (a += '\\ldots'), - s > 4 && - ((a += e.exponentProduct), - e.exponentMarker - ? (a += - e.exponentMarker + - (1 - s).toString()) - : (a += - '10^{' + - (1 - s).toString() + - '}'))), - (t = a); - } else { - t = o.replace( - /\B(?=(\d{3})+(?!\d))/g, - e.groupSeparator - ); - const i = cs(n, e); - i && (t += e.decimalMarker + i); - } - } else if (t.length > e.precision) { - const i = t.length; - let s = t[0]; - const a = cs(t.substr(2), e); - a && - ((s += e.decimalMarker + a), - '}' !== s[s.length - 1] && (s += '\\ldots')), - '1' !== s ? (s += e.exponentProduct) : (s = ''), - e.exponentMarker - ? (s += e.exponentMarker + (i - 2).toString()) - : (s += '10^{' + (i - 2).toString() + '}'), - (t = s); - } else - t = t.replace( - /\B(?=(\d{3})+(?!\d))/g, - e.groupSeparator - ); - return ( - s && - (s = e.exponentMarker - ? e.exponentMarker + s - : e.exponentProduct + ' 10^{' + s + '}'), - i + t + s - ); - } - t = hs(t); - } - if ('engineering' === e.scientificNotation) - if (0 === t) i = '0'; - else { - const s = Math.abs(t); - let a = Math.round(Math.log10(s)); - (a -= a % 3), s < 1e3 && (a = 0); - let o = s / Math.pow(10, a); - const n = o.toString().match(/^(.*)\.(.*)$/); - n && n[1] && n[2] && (o = n[1] + e.decimalMarker + n[2]), - e.groupSeparator && (o = cs(o.toExponential(), e)), - (a = - 0 === a - ? '' - : e.exponentMarker - ? e.exponentMarker + a - : e.exponentProduct + ' 10^{' + a + '}'), - (i = (t < 0 ? '-' : '') + o + a); - } - else { - const s = 'string' == typeof t ? t : t.toString(); - let a, - o, - n, - r = s.match(/^(.*)[e|E]([-+]?[0-9]*)$/i); - (a = s), - (n = ''), - r && - r[1] && - r[2] && - ((a = r[1]), - (o = e.exponentMarker - ? e.exponentMarker + r[2] - : e.exponentProduct + ' 10^{' + r[2] + '}')), - (r = a.match(/^(.*)\.(.*)$/)), - r && r[1] && r[2] && ((a = r[1]), (n = r[2])), - e.groupSeparator && - ((a = a.replace( - /\B(?=(\d{3})+(?!\d))/g, - e.groupSeparator - )), - (n = cs(n, e))), - n && (n = e.decimalMarker + n), - (i = a + n + (o || '')); - } - return i; - } - (te.MathAtom.prototype.toAST = function(t) { - let e, - i, - s, - a, - o = {}, - r = '', - l = { - bb: 'double-struck', - cal: 'script', - scr: 'script', - frak: 'fraktur', - cmrss: 'sans-serif', - cmrtt: 'monospace', - }[this.baseFontFamily || this.fontFamily], - c = ''; - 'b' === this.fontSeries && (c += 'bold'), - 'it' === this.fontShape && (c += 'italic'); - const h = this.latex ? this.latex.trim() : null; - switch (this.type) { - case 'root': - case 'group': - this.latex && this.latex.startsWith('\\nicefrac') - ? ((e = this.latex - .slice(9) - .match(/({.*}|[^}])({.*}|[^}])/)), - e - ? ((i = - 1 === e[1].length - ? e[1] - : e[1].substr(1, e[1].length - 2)), - (i = he.parseTokens( - n(i), - 'math', - null, - t.macros - )), - (s = - 1 === e[2].length - ? e[2] - : e[2].substr(1, e[2].length - 2)), - (s = he.parseTokens( - n(s), - 'math', - null, - t.macros - )), - (o = Xi('divide', rs(i, t), rs(s, t)))) - : (o.fn = 'divide')) - : (o.group = rs(this.body, t)); - break; - case 'genfrac': - o = Xi( - 'divide', - rs(this.numer, t), - this.denom && - this.denom[0] && - 'placeholder' === this.denom[0].type - ? Ji(1) - : rs(this.denom, t) - ); - break; - case 'surd': - o = this.index - ? Xi( - 'pow', - rs(this.body, t), - Xi('divide', Ji(1), rs(this.index, t)) - ) - : Xi('sqrt', rs(this.body, t)); - break; - case 'rule': - break; - case 'line': - case 'overlap': - case 'accent': - case 'overunder': - break; - case 'mord': - case 'textord': - case 'mbin': - (e = h - ? h.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) - : void 0), - e - ? (r = String.fromCodePoint(parseInt(e[1], 16))) - : ((r = qi(Ki(this))), - r.length > 0 && - '\\' === r.charAt(0) && - 'string' == typeof this.body && - (r = this.body)), - (a = At.mathVariantToUnicode(r, l, c) - .replace(/[\\]/g, '\\\\') - .replace(/["]/g, '\\"') - .replace(/[\b]/g, '\\b') - .replace(/[\f]/g, '\\f') - .replace(/[\n]/g, '\\n') - .replace(/[\r]/g, '\\r') - .replace(/[\t]/g, '\\t')), - a !== r - ? ((o = { sym: a }), (l = 'normal')) - : (o = { sym: r }); - break; - case 'minner': - case 'mop': - break; - case 'box': - o = rs(this.body, t); - break; - case 'enclose': - break; - case 'array': - if ('cardinality' === this.env.name) - o = Xi('card', rs(this.array, t)); - else if ( - /array|matrix|pmatrix|bmatrix/.test(this.env.name) - ) { - o = { fn: 'array', args: [] }; - for (const e of this.array) - o.args.push(e.map(e => rs(e, t))); - } else if ('cases' === this.env.name) { - o = { fn: 'cases', args: [] }; - for (const e of this.array) - if (e[0]) { - const i = []; - i.push(rs(e[0], t)); - let s = rs(e[1], t); - s && - 'text' === s.fn && - s.arg && - /^(if|when|for)$/i.test(s.arg[0].trim()) && - (s = s.arg.filter( - t => 'string' != typeof t - )), - i.push(s || {}), - o.args.push(i); - } - } - break; - case 'spacing': - case 'space': - case 'mathstyle': - break; - default: - o = void 0; - } - return ( - o && l && 'normal' !== l && (o.variant = l), - o && - 'string' == typeof this.cssClass && - (o.class = this.cssClass), - o && 'string' == typeof this.cssId && (o.id = this.cssId), - o - ); - }), - (te.toAST = function(t, e) { - return rs(t, e); - }); - var ps = function t(e, i) { - const s = Object.assign( - { - precision: 14, - decimalMarker: '.', - groupSeparator: '\\, ', - product: '\\cdot ', - exponentProduct: '\\cdot ', - exponentMarker: '', - arcSeparator: '\\,', - scientificNotation: 'auto', - beginRepeatingDigits: '\\overline{', - endRepeatingDigits: '}', - }, - i - ); - let a = ''; - if (void 0 === e) return ''; - if (('string' == typeof e && (e = JSON.parse(e)), e.latex)) - a = e.latex; - else if (Hi(e)) { - const i = Wi(e); - if (i === -1 / 0) a = '-\\infty '; - else if (i === 1 / 0) a = '\\infty '; - else if ( - 'object' != typeof e.num || - ('string' != typeof e.num.re && 'string' != typeof e.num.im) - ) - a = isNaN(i) ? '\\text{NaN}' : ds(e.num, s); - else { - const t = Vi(e), - i = Ui(e); - isNaN(t) || isNaN(i) - ? (a = '\\text{NaN}') - : Math.abs(i) <= Number.EPSILON && - Math.abs(t) <= Number.EPSILON - ? (a = '0') - : (Math.abs(t) > Number.EPSILON && (a = ds(t, s)), - Math.abs(i) > Number.EPSILON && - (Math.abs(t) > Number.EPSILON && - (a += i > 0 ? '+' : ''), - (a += - (1 !== Math.abs(i) ? ds(i, s) : '') + - '\\imaginaryI '))); - } - ji(e) && (a += '^{' + t(e.sup, s) + '}'), - Gi(e) && (a += '_{' + t(e.sub, s) + '}'); - } else if (e.group) - (a = t(e.group, s)), - Hi(e.group) || Ni(e.group) - ? 0 !== Ui(e.group) && (a = ls(e.fence || '(),', a)) - : (a = ls(e.fence || '(),', a)), - ji(e) && (a += '^{' + t(e.sup, s) + '}'), - Gi(e) && (a += '_{' + t(e.sub, s) + '}'); - else if (e.fn) - if ('bind' === e.fn) { - if ( - ((a = t(Fi(e, 0), s) + '|_{'), - e.arg && 2 === e.arg.length) - ) - a += t(Fi(e, 1)); - else { - let i = ''; - for (let s = 1; s < e.arg.length; s += 2) - (a += i + t(Fi(e, s)) + ' = ' + t(Fi(e, s + 1))), - (i = ', '); - } - a += '}'; - } else if ('divide' === e.fn) - a = - '\\frac{' + - t(Fi(e, 0), s) + - '}{' + - t(Fi(e, 1), s) + - '}'; - else if ('negate' === e.fn) a = '-' + t(Fi(e, 0), s); - else if ('subtract' === e.fn) - a = t(Fi(e, 0), s) + ' - ' + t(Fi(e, 1), s); - else if ( - ('add' !== e.fn && 'multiply' !== e.fn) || - !Array.isArray(e.arg) - ) - if ('list' === e.fn || 'list2' === e.fn) { - const i = []; - for (const a of e.arg) i.push(t(a, s)); - a = i.join('list2' === e.fn ? '; ' : ', '); - } else if ( - 'pow' === e.fn && - Array.isArray(e.arg) && - e.arg.length >= 2 - ) - (a = t(Fi(e, 0), s)), - Hi(Fi(e, 0)) || - Ni(Fi(e, 0)) || - (a = ls(e.fence || '(),', a)), - (a += '^{' + t(Fi(e, 1), s) + '}'); - else if ('equal' === e.fn && e.arg && e.arg.length > 2) - a = e.arg.map(e => t(e, s)).join(' = '); - else { - const i = (function(t) { - let e = Ti[t]; - return ( - e || - (e = - t.length > 1 - ? '\\operatorname{' + t + '}%^%_ %' - : t + '%^%_ %'), - e - ); - })(e.fn); - a = i; - let o = ''; - if ( - /%(?![01_^])/.test(i) && - Array.isArray(e.arg) && - e.arg.length > 1 - ) - a += ls( - e.fence || '(),', - ...e.arg.map(e => t(e, s)) - ); - else if (Array.isArray(e.arg) && e.arg.length > 0) { - const n = t(Fi(e, 0), s), - r = t(Fi(e, 1), s), - l = [...e.arg]; - /%0/.test(i) && - ((a = a.replace('%0', n)), l.shift()), - /%1/.test(i) && - ((a = a.replace('%1', r)), l.shift()), - l.length > 0 && - (o = ls( - e.fence || '(),', - ...l.map(e => t(e, s)) - )); - } else o = ls(e.fence || '(),', ''); - (a = ji(e) - ? a.replace('%^', '^{' + t(e.sup, s) + '}') - : a.replace('%^', '')), - (a = Gi(e) - ? a.replace('%_', '_{' + t(e.sub, s) + '}') - : a.replace('%_', '')), - (a = a.replace(/%(?![01_^])/, o)), - (a = a.replace('%0', '').replace('%1', '')); - } - else { - const i = []; - for (const a of e.arg) - 'add' === a.fn || 'subtract' === a.fn - ? i.push(ls('() ', t(a, s))) - : 0 !== Vi((o = a)) && 0 !== Ui(o) - ? i.push(ls('() ', t(a, s))) - : ji(e) && 0 !== Ui(a) && 1 !== Ui(a) - ? i.push(ls('() ', t(a, s))) - : i.push(t(a, s)); - if ('multiply' === e.fn) - a = - !e.arg || - 2 !== e.arg.length || - (!Hi(e.arg[0]) && 'divide' !== e.arg[0].fn) || - (Hi(e.arg[1]) && - (0 !== Vi(e.arg[1]) || 1 !== Ui(e.arg[1]))) - ? i.join(' \\times ') - : i[0] + i[1]; - else if (e.arg && 1 === e.arg.length) - a = - 'negate' === e.arg[0].fn || - (Hi(e.arg[0]) && Wi(e.arg[0]) < 0) - ? i[0] - : '+' + i[0]; - else { - a = i[0]; - for (let t = 1; t < e.arg.length; t++) - 'negate' === e.arg[t].fn || - (Hi(e.arg[t]) && Wi(e.arg[t]) < 0) - ? (a += i[t]) - : (a += ' + ' + i[t]); - } - } - else if ('string' == typeof e.sym) { - a = Ni(e); - let i = a.match(/^&#x([0-9a-f]+);$/i); - i && i[1] - ? (a = String.fromCodePoint(parseInt(i[1], 16))) - : ((i = a.match(/^&#([0-9]+);$/i)), - i && i[1] && (a = String.fromCodePoint(parseInt(i[1])))), - 'string' == typeof e.variant && - (a = - '\\' + - { - normal: 'mathrm', - 'double-struck': 'mathbb', - bold: 'mathbf', - fraktur: 'mathfrak', - script: 'mathscr', - 'sans-serif': 'mathsf', - monospace: 'mathtt', - }[e.variant] + - '{' + - a + - '}'), - ji(e) && (a += '^{' + t(e.sup, s) + '}'), - Gi(e) && (a += '_{' + t(e.sub, s) + '}'); - } else 'string' == typeof e.text && (a = '\\text{' + e.text + '}'); - var o; - return ( - 'string' == typeof e.error && - (a = '\\bbox[#F56165]{' + a + '}'), - a - ); - }; - const ms = { - '\\alpha': 'alpha ', - '\\mu': 'mew ', - '\\sigma': 'sigma ', - '\\pi': 'pie ', - '\\imaginaryI': 'eye ', - '\\sum': 'Summation ', - '\\prod': 'Product ', - a: 'a', - A: 'capital A', - '+': 'plus ', - '-': 'minus ', - ';': ' semi-colon ', - ',': ' comma ', - '|': 'Vertical bar', - '(': 'Open paren. ', - ')': ' Close paren. ', - '=': '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 ', - '​': '', - '−': 'minus ', - ':': ' such that ', - '\\colon': ' such that ', - '\\hbar': 'etch bar ', - '\\iff': - 'if, and only if, ', - '\\Longleftrightarrow': - 'if, and only if, ', - '\\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 n', - '\\C': - 'the set c', - '\\Z': - 'the set z', - '\\Q': - 'the set q', - '\\infty': 'infinity ', - '\\nabla': 'nabla ', - '\\partial': 'partial derivative of ', - '\\cdots': 'dot dot dot ', - '\\Rightarrow': 'implies ', - '\\lbrace': 'open brace', - '\\{': 'open brace', - '\\rbrace': 'close brace', - '\\}': 'close brace', - '\\langle': - 'left angle bracket', - '\\rangle': - 'right angle bracket', - '\\lfloor': 'open floor', - '\\rfloor': 'close floor', - '\\lceil': 'open ceiling', - '\\rceil': - 'close ceiling', - '\\vert': 'vertical bar', - '\\mvert': 'divides', - '\\lvert': - 'left vertical bar', - '\\rvert': - 'right vertical bar', - '\\lbrack': - ' open square bracket ', - '\\rbrack': - ' close square bracket ', - mm: 'millimeters', - cm: 'centimeters', - km: 'kilometers', - kg: 'kilograms', - }; - function us(t) { - let e = 0; - if (t && Array.isArray(t)) - for (const i of t) 'first' !== i.type && (e += 1); - return 1 === e; - } - function fs(t) { - let e = ''; - if (t && Array.isArray(t)) - for (const i of t) - 'first' !== i.type && - 'string' == typeof i.body && - (e += i.body); - return e; - } - function gs(t, e, i, s) { - e = e.split(' '); - for (const a of e) { - const e = a.match(/(.*):(.*)/); - if (e) { - const a = s || {}; - 'active' === e[2] ? (a.passive = !1) : (a[e[2]] = !0), - t.addEventListener(e[1], i, a); - } else t.addEventListener(a, i, s); - } - } - function ys(t, e, i, s) { - e = e.split(' '); - for (const a of e) { - const e = a.match(/(.*):(.*)/); - if (e) { - const a = s || {}; - 'active' === e[2] ? (a.passive = !1) : (a[e[2]] = !0), - t.removeEventListener(e[1], i, a); - } else t.removeEventListener(a, i, s); - } - } - function bs(t, e) { - let i = document.getElementById(t); - return ( - i - ? i.setAttribute( - 'data-refcount', - parseInt(i.getAttribute('data-refcount')) + 1 - ) - : ((i = document.createElement('div')), - i.setAttribute('aria-hidden', 'true'), - i.setAttribute('data-refcount', '1'), - (i.className = e), - (i.id = t), - document.body.appendChild(i)), - i - ); - } - function xs(t) { - if (!t) return null; - const e = parseInt(t.getAttribute('data-refcount')); - return ( - e && 1 !== e - ? t.setAttribute('data-refcount', e - 1) - : t.remove(), - t - ); - } - function ks(t) { - return t.element && t.element.mathfield === t; - } - (te.toSpeakableFragment = function(t, e) { - function i(t) { - return '' + t + ''; - } - if (!t) return ''; - let s = ''; - if ( - (t.id && - 'math' === e.speechMode && - (s += ''), - Array.isArray(t)) - ) { - let a = !1, - o = !1; - for (let n = 0; n < t.length; n++) - 'text' !== t[n].mode && (o = !1), - n < t.length - 2 && - 'mopen' === t[n].type && - 'mclose' === t[n + 2].type && - 'mord' === t[n + 1].type - ? ((s += ' of '), - (s += i(te.toSpeakableFragment(t[n + 1], e))), - (n += 2)) - : 'text' === t[n].mode - ? o - ? (s += t[n].body ? t[n].body : ' ') - : ((o = !0), - (s += te.toSpeakableFragment(t[n], e))) - : 'mord' === t[n].type && - /[0123456789,.]/.test(t[n].body) - ? a - ? (s += t[n].body) - : ((a = !0), - (s += te.toSpeakableFragment(t[n], e))) - : ((a = !1), - (s += te.toSpeakableFragment(t[n], e))); - } else if ('text' === t.mode) s += t.body; - else { - let a = '', - o = '', - n = '', - r = !1; - switch (t.type) { - case 'group': - case 'root': - s += te.toSpeakableFragment(t.body, e); - break; - case 'genfrac': - if ( - ((a = te.toSpeakableFragment(t.numer, e)), - (o = te.toSpeakableFragment(t.denom, e)), - us(t.numer) && us(t.denom)) - ) { - const e = { - '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 ', - }[fs(t.numer) + '/' + fs(t.denom)]; - e ? (s = e) : (s += a + ' over ' + o); - } else - s += - ' the fraction ' + - a + - ', over ' + - o + - '. End fraction.'; - break; - case 'surd': - if ( - ((n = te.toSpeakableFragment(t.body, e)), t.index) - ) { - let i = te.toSpeakableFragment(t.index, e); - i = i.trim(); - const a = i.replace(//g, ''); - s += - '3' === a - ? ' the cube root of ' + - n + - '. End cube root' - : 'n' === a - ? ' the nth root of ' + - n + - '. End root' - : ' the root with index: ' + - i + - ', of ' + - n + - '. End root'; - } else - us(t.body) - ? (s += ' the square root of ' + n + ' , ') - : (s += - ' the square root of ' + - n + - '. End square root'); - break; - case 'accent': - break; - case 'leftright': - (s += ms[t.leftDelim] || t.leftDelim), - (s += te.toSpeakableFragment(t.body, e)), - (s += ms[t.rightDelim] || t.rightDelim); - break; - case 'line': - case 'rule': - case 'overunder': - case 'overlap': - break; - case 'placeholder': - s += 'placeholder ' + t.body; - break; - case 'delim': - case 'sizeddelim': - case 'mord': - case 'minner': - case 'mbin': - case 'mrel': - case 'mpunct': - case 'mopen': - case 'mclose': - case 'textord': { - const i = t.latex ? t.latex.trim() : ''; - if ( - '\\mathbin' === i || - '\\mathrel' === i || - '\\mathopen' === i || - '\\mathclose' === i || - '\\mathpunct' === i || - '\\mathord' === i || - '\\mathinner' === i - ) { - s = te.toSpeakableFragment(t.body, e); - break; - } - let a = t.body, - o = t.latex; - if ( - (('delim' !== t.type && 'sizeddelim' !== t.type) || - (a = o = t.delim), - 'text' === e.speechMode) - ) - s += a; - else { - if ( - ('mbin' === t.type && - (s += ''), - a) - ) { - const t = ms[a] || (o ? ms[o.trim()] : ''); - if (t) s += ' ' + t; - else { - const t = o - ? (function(t) { - let e = Je.NOTES[t]; - return ( - e || - '\\' !== t.charAt(0) || - (e = - ' ' + - t.replace('\\', '') + - ' '), - Array.isArray(e) && - (e = e[0]), - e - ); - })(o.trim()) - : ''; - s += - t || - (function(t) { - let i = ''; - return ( - e.textToSpeechMarkup - ? /[a-z]/.test(t) - ? (i += - ' ' + - t + - '') - : /[A-Z]/.test(t) - ? (i += - 'capital ' + - t.toLowerCase()) - : (i += t) - : /[a-z]/.test(t) - ? (i += - " '" + - t.toUpperCase() + - "'") - : /[A-Z]/.test(t) - ? (i += - " 'capital " + - t.toUpperCase() + - "'") - : (i += t), - i - ); - })(a); - } - } else s += te.toSpeakableFragment(t.body, e); - 'mbin' === t.type && (s += ''); - } - break; - } - case 'mop': - if ('​' !== t.body) { - const a = t.latex ? t.latex.trim() : ''; - if ('\\sum' === a) - if (t.superscript && t.subscript) { - let i = te.toSpeakableFragment( - t.superscript, - e - ); - i = i.trim(); - let a = te.toSpeakableFragment( - t.subscript, - e - ); - (a = a.trim()), - (s += - ' the summation from ' + - a + - ' to ' + - i + - ' of '), - (r = !0); - } else if (t.subscript) { - let i = te.toSpeakableFragment( - t.subscript, - e - ); - (i = i.trim()), - (s += - ' the summation from ' + - i + - ' of '), - (r = !0); - } else s += ' the summation of'; - else if ('\\prod' === a) - if (t.superscript && t.subscript) { - let i = te.toSpeakableFragment( - t.superscript, - e - ); - i = i.trim(); - let a = te.toSpeakableFragment( - t.subscript, - e - ); - (a = a.trim()), - (s += - ' the product from ' + - a + - ' to ' + - i + - ' of '), - (r = !0); - } else if (t.subscript) { - let i = te.toSpeakableFragment( - t.subscript, - e - ); - (i = i.trim()), - (s += - ' the product from ' + - i + - ' of '), - (r = !0); - } else s += ' the product of '; - else if ('\\int' === a) - if (t.superscript && t.subscript) { - let a = te.toSpeakableFragment( - t.superscript, - e - ); - a = a.trim(); - let o = te.toSpeakableFragment( - t.subscript, - e - ); - (o = o.trim()), - (s += - ' the integral from ' + - i(o) + - ' to ' + - i(a) + - ' of '), - (r = !0); - } else - s += - ' the integral of '; - else if ('string' == typeof t.body) { - s += - ms[t.body] || - ms[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 = te.toSpeakableFragment(t.body, e)), - us(t.body) - ? (s += ' crossed out ' + n + ' , ') - : (s += - ' crossed out ' + n + '. End cross out'); - } - if (!r && t.superscript) { - let i = te.toSpeakableFragment(t.superscript, e); - i = i.trim(); - const a = i.replace(/<[^>]*>/g, ''); - if (us(t.superscript)) { - if ('math' === e.speechMode) { - const e = (function(t) { - if (t && Array.isArray(t)) - for (const e of t) - if ('first' !== e.type && e.id) - return e.id.toString(); - return ''; - })(t.superscript); - e && (s += ''); - } - '′' === a - ? (s += ' prime ') - : '2' === a - ? (s += ' squared ') - : '3' === a - ? (s += ' cubed ') - : isNaN(parseInt(a)) - ? (s += ' to the ' + i + '; ') - : (s += - ' to the ' + - a + - ' power; '); - } else - isNaN(parseInt(a)) - ? (s += ' raised to the ' + i + '; ') - : (s += - ' raised to the ' + - a + - ' power; '); - } - if (!r && t.subscript) { - let i = te.toSpeakableFragment(t.subscript, e); - (i = i.trim()), - us(t.subscript) - ? (s += ' sub ' + i) - : (s += ' subscript ' + i + '. End subscript. '); - } - } - return s; - }), - (te.toSpeakableText = function(t, e) { - const i = e - ? JSON.parse(JSON.stringify(e)) - : { textToSpeechMarkup: '', textToSpeechRules: 'mathlive' }; - if ( - ((i.speechMode = 'math'), - window.sre && 'sre' === i.textToSpeechRules) - ) { - i.generateID = !0; - const e = te.toMathML(t, i); - return e - ? (i.textToSpeechMarkup && - ((i.textToSpeechRulesOptions = - i.textToSpeechRulesOptions || {}), - (i.textToSpeechRulesOptions.markup = - i.textToSpeechMarkup), - 'ssml' === i.textToSpeechRulesOptions.markup && - (i.textToSpeechRulesOptions.markup = - 'ssml_step'), - (i.textToSpeechRulesOptions.rate = - i.speechEngineRate)), - i.textToSpeechRulesOptions && - window.sre.System.getInstance().setupEngine( - i.textToSpeechRulesOptions - ), - window.sre.System.getInstance().toSpeech(e)) - : ''; - } - let s = te.toSpeakableFragment(t, i); - if ('ssml' === i.textToSpeechMarkup) { - let t = ''; - i.speechEngineRate && - (t = ''), - (s = - '' + - t + - '

    ' + - s + - '

    ' + - (t ? '    ' : '') + - ''); - } else - s = - 'mac' === i.textToSpeechMarkup && - 'mac' === - (function(t) { - let e = 'other'; - return ( - navigator && - navigator.platform && - navigator.userAgent && - (/^(mac)/i.test(navigator.platform) - ? (e = 'mac') - : /^(win)/i.test(navigator.platform) - ? (e = 'win') - : /(android)/i.test( - navigator.userAgent - ) - ? (e = 'android') - : /(iphone)/i.test( - navigator.userAgent - ) || - /(ipod)/i.test( - navigator.userAgent - ) || - /(ipad)/i.test( - navigator.userAgent - ) - ? (e = 'ios') - : /\bCrOS\b/i.test( - navigator.userAgent - ) && (e = 'chromeos')), - e === t ? t : '!' + t - ); - })('mac') - ? s - .replace(//g, '') - .replace(//g, '[[emph+]]') - .replace(/<\/emphasis>/g, '') - .replace( - //g, - '[[slc $1]]' - ) - .replace(/]*>/g, '') - .replace(/<\/say-as>/g, '') - : s.replace(/<[^>]*>/g, '').replace(/\s{2,}/g, ' '); - return s; - }); - class vs { - constructor(t, e) { - this.$setConfig(e || {}), - (this.element = t), - (t.mathfield = this), - (this.originalContent = t.innerHTML); - let i = this.element.textContent; - i && (i = i.trim()); - let s = ''; - this.config.substituteTextArea - ? 'string' == typeof this.config.substituteTextArea - ? (s += this.config.substituteTextArea) - : (s += '') - : /android|ipad|ipod|iphone/i.test(navigator.userAgent) - ? (s += - "\n \n \n ") - : (s += - ''), - (s += - ''), - this.config.virtualKeyboardMode || - (this.config.virtualKeyboardMode = - window.matchMedia && - window.matchMedia('(any-pointer: coarse)').matches - ? 'onfocus' - : 'off'), - 'manual' === this.config.virtualKeyboardMode - ? ((s += `')) - : (s += ''), - (s += ''), - (s += - '\n
    \n \n \n
    \n '), - (this.element.innerHTML = s); - let a = 0; - 'function' == typeof this.config.substituteTextArea - ? (this.textarea = this.config.substituteTextArea()) - : (this.textarea = this.element.children[ - a++ - ].firstElementChild), - (this.field = this.element.children[a].children[0]), - this.field.addEventListener( - 'wheel', - t => { - t.preventDefault(), t.stopPropagation(); - let e = void 0 === t.deltaX ? t.detail : -t.deltaX; - isFinite(e) || (e = t.wheelDelta / 10), - this.field.scroll({ - top: 0, - left: this.field.scrollLeft - 5 * e, - }); - }, - { passive: !1 } - ), - (this.virtualKeyboardToggleDOMNode = this.element.children[ - a++ - ].children[1]), - this._attachButtonHandlers( - this.virtualKeyboardToggleDOMNode, - { - default: 'toggleVirtualKeyboard', - alt: 'toggleVirtualKeyboardAlt', - shift: 'toggleVirtualKeyboardShift', - } - ), - (this.ariaLiveText = this.element.children[a].children[0]), - (this.accessibleNode = this.element.children[ - a++ - ].children[1]), - (this.popover = bs( - 'mathlive-popover-panel', - 'ML__popover' - )), - (this.keystrokeCaption = bs( - 'mathlive-keystroke-caption-panel', - 'ML__keystroke-caption' - )), - (this.keystrokeCaptionVisible = !1), - (this.virtualKeyboardVisible = !1), - (this.keystrokeBuffer = ''), - (this.keystrokeBufferStates = []), - (this.keystrokeBufferResetTimer = null), - (this.suggestionIndex = 0), - (this.mode = e.defaultMode || 'math'), - (this.smartModeSuppressed = !1), - (this.style = {}), - (this.blurred = !0), - gs(this.element, 'focus', this), - gs(this.element, 'blur', this), - gs(this.textarea, 'cut', this), - gs(this.textarea, 'copy', this), - gs(this.textarea, 'paste', this), - He.delegateKeyboardEvents(this.textarea, { - container: this.element, - allowDeadKey: () => 'text' === this.mode, - 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), - }), - window.PointerEvent - ? gs(this.field, 'pointerdown', this) - : gs(this.field, 'touchstart:active mousedown', this), - gs(window, 'resize', this); - const o = { ...e }; - (o.onSelectionDidChange = vs.prototype._onSelectionDidChange.bind( - this - )), - (o.onContentDidChange = vs.prototype._onContentDidChange.bind( - this - )), - (o.onAnnounce = this.config.onAnnounce), - (o.macros = this.config.macros), - (o.removeExtraneousParentheses = this.config.removeExtraneousParentheses), - (this.mathlist = new Be.EditableMathlist(o, this)), - (this.undoManager = new (class { - constructor(t) { - (this.mathlist = t), - (this.maximumDepth = 1e3), - (this.record = !1), - (this.canCoalesce = !1), - this.reset(); - } - reset() { - (this.stack = []), (this.index = -1); - } - startRecording() { - this.record = !0; - } - canUndo() { - return this.index > 0; - } - canRedo() { - return this.index !== this.stack.length - 1; - } - undo(t) { - this.canUndo() && - (t && - 'function' == - typeof t.onUndoStateWillChange && - t.onUndoStateWillChange( - this.mathlist.target, - 'undo' - ), - this.restore(this.stack[this.index - 1], t), - (this.index -= 1), - t && - 'function' == - typeof t.onUndoStateDidChange && - t.onUndoStateDidChange( - this.mathlist.target, - 'undo' - ), - (this.canCoalesce = !1)); - } - redo(t) { - this.canRedo() && - (t && - 'function' === t.onUndoStateWillChange && - t.onUndoStateWillChange( - this.mathlist.target, - 'redo' - ), - (this.index += 1), - this.restore(this.stack[this.index], t), - t && - 'function' == - typeof t.onUndoStateDidChange && - t.onUndoStateDidChange( - this.mathlist.target, - 'redo' - ), - (this.canCoalesce = !1)); - } - pop() { - this.canUndo() && - ((this.index -= 1), this.stack.pop()); - } - snapshot(t) { - this.record && - (t && - 'function' === t.onUndoStateWillChange && - t.onUndoStateWillChange( - this.mathlist.target, - 'snapshot' - ), - this.stack.splice( - this.index + 1, - this.stack.length - this.index - 1 - ), - this.stack.push({ - latex: this.mathlist.root.toLatex(), - selection: this.mathlist.toString(), - }), - this.index++, - this.stack.length > this.maximumDepth && - this.stack.shift(), - t && - 'function' == - typeof t.onUndoStateDidChange && - t.onUndoStateDidChange( - this.mathlist.target, - 'snapshot' - ), - (this.canCoalesce = !1)); - } - snapshotAndCoalesce(t) { - this.canCoalesce && this.pop(), - this.snapshot(t), - (this.canCoalesce = !0); - } - save() { - return { - latex: this.mathlist.root.toLatex(), - selection: this.mathlist.toString(), - }; - } - restore(t, e) { - const i = this.mathlist.suppressChangeNotifications; - void 0 !== e.suppressChangeNotifications && - (this.mathlist.suppressChangeNotifications = - e.suppressChangeNotifications), - this.mathlist.insert(t ? t.latex : '', { - mode: 'math', - insertionMode: 'replaceAll', - selectionMode: 'after', - format: 'latex', - ...e, - }), - this.mathlist.setPath( - t - ? t.selection - : [{ relation: 'body', offset: 0 }] - ), - (this.mathlist.suppressChangeNotifications = i); - } - })(this.mathlist)), - i.length > 0 && this.$latex(i), - this.undoManager.startRecording(), - this.undoManager.snapshot(this.config); - } - handleEvent(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( - () => ks(this) && this._onResize() - )); - break; - case 'cut': - this._onCut(t); - break; - case 'copy': - this._onCopy(t); - break; - case 'paste': - this._onPaste(t); - } - } - $revertToOriginalContent() { - (this.element.innerHTML = this.originalContent), - (this.element.mathfield = null), - delete this.accessibleNode, - delete this.ariaLiveText, - delete this.field, - ys(this.textarea, 'cut', this), - ys(this.textarea, 'copy', this), - ys(this.textarea, 'paste', this), - this.textarea.remove(), - delete this.textarea, - this.virtualKeyboardToggleDOMNode.remove(), - delete this.virtualKeyboardToggleDOMNode, - xs(this.popover), - xs(this.keystrokeCaption), - xs(this.virtualKeyboard), - xs( - document.getElementById('mathlive-alternate-keys-panel') - ), - ys(this.element, 'pointerdown', this), - ys(this.element, 'touchstart:active mousedown', this), - ys(this.element, 'focus', this), - ys(this.element, 'blur', this), - ys(window, 'resize', this), - delete this.element; - } - _resetKeystrokeBuffer() { - (this.keystrokeBuffer = ''), - (this.keystrokeBufferStates = []), - clearTimeout(this.keystrokeBufferResetTimer); - } - _getCaretPosition() { - const t = (function t(e) { - if ( - e.classList.contains('ML__caret') || - e.classList.contains('ML__text-caret') || - e.classList.contains('ML__command-caret') - ) - return e; - let i; - return ( - Array.from(e.children).forEach(function(e) { - i = i || t(e); - }), - i - ); - })(this.field); - if (t) { - const e = t.getBoundingClientRect(); - return { x: e.right, y: e.bottom, height: e.height }; - } - return null; - } - _getSelectionBounds() { - const t = this.field.querySelectorAll('.ML__selected'); - if (t && t.length > 0) { - const e = { - top: 1 / 0, - bottom: -1 / 0, - left: 1 / 0, - right: -1 / 0, - }; - t.forEach(t => { - const i = t.getBoundingClientRect(); - i.left < e.left && (e.left = i.left), - i.right > e.right && (e.right = i.right), - i.bottom > e.bottom && (e.bottom = i.bottom), - i.top < e.top && (e.top = i.top); - }); - const i = this.field.getBoundingClientRect(), - s = e.right - e.left, - a = e.bottom - e.top; - return ( - (e.left = Math.ceil( - e.left - i.left + this.field.scrollLeft - )), - (e.right = e.left + s), - (e.top = Math.ceil(e.top - i.top)), - (e.bottom = e.top + a), - e - ); - } - return null; - } - _pathFromPoint(t, e, i) { - let s; - (i = i || {}).bias = i.bias || 0; - const a = (function t(e, i, s) { - let a = { - element: null, - distance: Number.POSITIVE_INFINITY, - }, - o = !0; - if (e.getAttribute('data-atom-id')) { - a.element = e; - const t = e.getBoundingClientRect(), - n = i - (t.left + t.right) / 2, - r = s - (t.top + t.bottom) / 2; - (a.distance = n * n + r * r), - (o = i >= t.left && i <= t.right); - } - return ( - o && - e.children && - Array.from(e.children).forEach(function(e) { - const o = t(e, i, s); - o.element && - o.distance <= a.distance && - (a = o); - }), - a - ); - })(this.field, t, e).element, - o = a ? a.getAttribute('data-atom-id') : null; - if (o) { - const 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 = me.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; - } - _onPointerDown(t) { - const e = this; - let i, - s = !1, - a = !1, - o = !1; - if (1 !== t.buttons) return; - function n(t) { - window.PointerEvent - ? (ys(e.field, 'pointermove', h), - ys( - e.field, - 'pointerend pointerleave pointercancel', - n - ), - e.field.releasePointerCapture(t.pointerId)) - : (ys(e.field, 'touchmove', h), - ys(e.field, 'touchend touchleave', n), - ys(window, 'mousemove', h), - ys(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(); - ws && - Math.abs(ws.x - d) < 5 && - Math.abs(ws.y - p) < 5 && - Date.now() < ws.time + 500 - ? ((Ss += 1), (ws.time = m)) - : ((ws = { x: d, y: p, time: m }), (Ss = 1)); - const u = this.field.getBoundingClientRect(); - if ( - d >= u.left && - d <= u.right && - p >= u.top && - p <= u.bottom - ) { - if ( - (this.$hasFocus() || - ((o = !0), - this.textarea.focus && this.textarea.focus()), - this._resetKeystrokeBuffer(), - (this.smartModeSuppressed = !1), - (i = this._pathFromPoint(d, p, { bias: 0 })), - i) - ) { - let r = document.createElement('div'); - (r.className = 'ML__scroller'), - this.element.appendChild(r), - (r.style.left = u.left - 200 + 'px'), - (r = document.createElement('div')), - (r.className = 'ML__scroller'), - this.element.appendChild(r), - (r.style.left = u.right + 'px'), - t.shiftKey - ? (this.mathlist.setRange( - this.mathlist.path, - i - ), - (i = me.clone(this.mathlist.path)), - (i[i.length - 1].offset -= 1)) - : this.mathlist.setPath(i, 0), - (o = !0), - (this.style = {}), - 3 === t.detail || Ss > 2 - ? (n(t), - (3 !== t.detail && 3 !== Ss) || - this.mathlist.selectAll_()) - : s || - ((s = !0), - window.PointerEvent - ? (gs(e.field, 'pointermove', h), - gs( - e.field, - 'pointerend pointercancel pointerup', - n - ), - e.field.setPointerCapture(t.pointerId)) - : (gs(window, 'blur', n), - t.touches - ? (gs(t.target, 'touchmove', h), - gs(t.target, 'touchend', n)) - : (gs(window, 'mousemove', h), - gs(window, 'mouseup', n))), - (2 !== t.detail && 2 !== Ss) || - ((a = !0), this.mathlist.selectGroup_())); - } - } else ws = null; - o && this._requestUpdate(), t.preventDefault(); - } - _onSelectionDidChange() { - 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 && - (Je.hidePopover(this), - this.mathlist.removeCommandString()); - } - Je.updatePopoverPosition(this, { deferred: !0 }), - 'function' == typeof this.config.onSelectionDidChange && - this.config.onSelectionDidChange(this); - } - _onContentDidChange() { - 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); - } - _nextAtomSpeechText(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 As(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 += As(this, '', r)) - : 0 !== a.offset && - (o += n ? 'end of ' + n : 'unknown'), - o - ); - } - _announce(t, e, i) { - 'function' == typeof this.config.onAnnounce && - this.config.onAnnounce(this, t, e, i); - } - _onFocus() { - this.config.readOnly || - (this.blurred && - ((this.blurred = !1), - this.textarea.focus && this.textarea.focus(), - 'onfocus' === this.config.virtualKeyboardMode && - this.showVirtualKeyboard_(), - Je.updatePopoverPosition(this), - this.config.onFocus && this.config.onFocus(this), - this._requestUpdate())); - } - _onBlur() { - 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)); - } - _onResize() { - 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'), - Je.updatePopoverPosition(this); - } - toggleKeystrokeCaption_() { - (this.keystrokeCaptionVisible = !this.keystrokeCaptionVisible), - (this.keystrokeCaption.innerHTML = ''), - this.keystrokeCaptionVisible || - (this.keystrokeCaption.style.visibility = 'hidden'); - } - _showKeystroke(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 = - '' + - (ve.stringify(t) || t) + - '' + - 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); - } - } - $perform(t) { - if (!t) return !1; - let e, - i = !1, - s = [], - a = !1; - if ( - (Array.isArray(t) - ? ((e = t[0]), (s = t.slice(1))) - : (e = t), - (e = e.replace(/-\w/g, t => t[1].toUpperCase())), - (e += '_'), - 'function' == typeof this.mathlist[e]) - ) { - if ( - (/^(delete|transpose|add)/.test(e) && - this._resetKeystrokeBuffer(), - /^(delete|transpose|add)/.test(e) && - 'command' !== this.mode && - (this.undoManager.pop(), - this.undoManager.snapshot(this.config)), - this.mathlist[e](...s), - /^(delete|transpose|add)/.test(e) && - 'command' !== this.mode && - this.undoManager.snapshot(this.config), - /^(delete)/.test(e) && 'command' === this.mode) - ) { - const t = this.mathlist.extractCommandStringAroundInsertionPoint(), - e = At.suggest(t); - 0 === e.length - ? Je.hidePopover(this) - : Je.showPopoverWithLatex( - this, - e[0].match, - e.length > 1 - ); - } - (a = !0), (i = !0); - } else - 'function' == typeof this[e] && - ((a = this[e](...s)), (i = !0)); - return ( - (this.mathlist.isCollapsed() && - !/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test( - e - )) || - (this._resetKeystrokeBuffer(), (this.style = {})), - a && this._requestUpdate(), - i - ); - } - performWithFeedback_(t) { - return ( - this.$focus(), - this.config.keypressVibration && - navigator.vibrate && - navigator.vibrate(3), - 'moveToNextPlaceholder' === - (t = t.replace(/-\w/g, t => t[1].toUpperCase())) || - 'moveToPreviousPlaceholder' === t || - 'complete' === t - ? this.returnKeypressSound - ? (this.returnKeypressSound.load(), - this.returnKeypressSound.play().catch(t => {})) - : this.keypressSound && - (this.keypressSound.load(), - this.keypressSound.play().catch(t => {})) - : ('deletePreviousChar' !== t && - 'deleteNextChar' !== t && - 'deletePreviousWord' !== t && - 'deleteNextWord' !== t && - 'deleteToGroupStart' !== t && - 'deleteToGroupEnd' !== t && - 'deleteToMathFieldStart' !== t && - 'deleteToMathFieldEnd' !== t) || - !this.deleteKeypressSound - ? this.keypressSound && - (this.keypressSound.load(), - this.keypressSound.play().catch(t => {})) - : (this.deleteKeypressSound.load(), - this.deleteKeypressSound.play().catch(t => {})), - this.$perform(t) - ); - } - convertLastAtomsToText_(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))), - s || - (a.applyStyle({ mode: 'text' }), - (a.latex = a.body)), - (i -= 1), - (t -= 1); - } - this.mathlist.contentDidChange(); - } - convertLastAtomsToMath_(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))), - s || a.applyStyle({ mode: 'math', type: 'mord' }), - (i -= 1), - (t -= 1); - } - this.removeIsolatedSpace_(), this.mathlist.contentDidChange(); - } - removeIsolatedSpace_() { - 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); - } - } - getTextBeforeAnchor_() { - 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))) - )), - i || (t = s.body + t), - (e -= 1); - } - return t; - } - smartMode_(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 = He.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 ( - /(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test( - s - ) && - !/(αβγ)$/.test(s) - ) - return ( - this.convertLastAtomsToText_(t => - /(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test( - t.body - ) - ), - !0 - ); - if (/\?|\./.test(i)) return !0; - } - return !1; - } - _onKeystroke(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 = He.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 Be.EditableMathlist(); - (e.root = te.makeRoot( - 'math', - he.parseTokens( - n( - 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 = ve.forString( - this.mode, - t, - e.slice(a), - this.config - )), - (a += 1); - } - (s = a - 1), - (this.keystrokeBuffer += t), - this.keystrokeBufferStates.push( - this.undoManager.save() - ), - ve.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 = ve.selectorForKeystroke(this.mode, t)), - !i && !a) - ) - return !0; - if (this.config.readOnly && 'insert' === a[0]) return !0; - this.mathlist.decorateCommandStringAroundInsertionPoint(!1); - const r = this.mathlist.parent(); - if ( - ('moveAfterParent' === a && - r && - 'leftright' === r.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)$/.test( - i - ) - ) { - const t = { - ...this.mathlist.anchorStyle(), - ...this.style, - }; - this.mathlist.insert(He.eventToChar(e), { - suppressChangeNotifications: !0, - mode: this.mode, - style: t, - }); - const i = this.mode; - this.undoManager.snapshotAndCoalesce(this.config), - this.undoManager.restore( - this.keystrokeBufferStates[s], - { - ...this.config, - suppressChangeNotifications: !0, - } - ), - (this.mode = i); - } - this.mathlist.contentWillChange(); - const t = this.mathlist.suppressChangeNotifications; - this.mathlist.suppressChangeNotifications = !0; - const a = { ...this.mathlist.anchorStyle(), ...this.style }; - this.mathlist.insert(i, { - format: 'latex', - mode: this.mode, - style: a, - smartFence: !0, - }), - this.removeIsolatedSpace_(), - i.endsWith(' ') && - ((this.mode = 'text'), - this.mathlist.insert(' ', { - mode: 'text', - style: a, - })), - (this.mathlist.suppressChangeNotifications = t), - this.mathlist.contentDidChange(), - this.undoManager.snapshot(this.config), - this._requestUpdate(), - this._announce('replacement'), - o && this._resetKeystrokeBuffer(); - } - return ( - this.scrollIntoView(), - e && - e.preventDefault && - (e.preventDefault(), e.stopPropagation()), - !1 - ); - } - _onTypedText(t, e) { - if (this.config.readOnly) return void this._announce('plonk'); - if ( - ((e = e || {}).focus && this.$focus(), - e.feedback && - (this.config.keypressVibration && - navigator.vibrate && - navigator.vibrate(3), - this.keypressSound && - (this.keypressSound.load(), - this.keypressSound.play().catch(t => {}))), - e.commandMode && - 'command' !== this.mode && - this.switchMode_('command'), - this.mathlist.decorateCommandStringAroundInsertionPoint(!1), - e.simulateKeystroke) - ) { - const e = t.charAt(0), - i = He.charToEvent(e); - if (!this.$keystroke(He.keyboardEventToString(i), i)) - return; - } - let i = '', - a = !1; - if (this.pasteInProgress) - (this.pasteInProgress = !1), - this.mathlist.insert(t, { - smartFence: this.config.smartFence, - mode: 'math', - }); - else { - const e = { ...this.mathlist.anchorStyle(), ...this.style }, - o = s(t); - for (const t of o) - if ('command' === this.mode) { - this.mathlist.removeSuggestion(), - (this.suggestionIndex = 0); - const e = this.mathlist.extractCommandStringAroundInsertionPoint(), - s = At.suggest(e + t); - (a = s.length > 1), - 0 === s.length - ? (this.mathlist.insert(t, { - mode: 'command', - }), - /^\\[a-zA-Z\\*]+$/.test(e + t) && - this.mathlist.decorateCommandStringAroundInsertionPoint( - !0 - ), - Je.hidePopover(this)) - : (this.mathlist.insert(t, { - mode: 'command', - }), - s[0].match !== e + t && - this.mathlist.insertSuggestion( - s[0].match, - -s[0].match.length + e.length + 1 - ), - (i = s[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.$perform(i); - } else - this.config.smartSuperscript && - 'superscript' === this.mathlist.relation() && - /[0-9]/.test(t) && - 0 === - this.mathlist - .siblings() - .filter(t => 'first' !== t.type).length - ? (this.mathlist.insert(t, { - mode: 'math', - style: e, - }), - this.mathlist.moveAfterParent_()) - : this.mathlist.insert(t, { - mode: 'math', - style: e, - smartFence: this.config.smartFence, - }); - } else - 'text' === this.mode && - this.mathlist.insert(t, { - mode: 'text', - style: e, - }); - } - 'command' !== this.mode && - this.undoManager.snapshotAndCoalesce(this.config), - this._requestUpdate(), - this.scrollIntoView(), - Je.showPopoverWithLatex(this, i, a); - } - _hash() { - let t = 0; - const e = this.mathlist.root.toLatex(!1); - for (let i = 0; i < e.length; i++) - (t = 31 * t + e.charCodeAt(i)), (t |= 0); - return Math.abs(t); - } - _requestUpdate() { - this.dirty || - ((this.dirty = !0), - requestAnimationFrame(t => ks(this) && this._render())); - } - _render(t) { - (t = t || {}), - (this.dirty = !1), - window.mathlive || (window.mathlive = {}), - this.mathlist.anchor() || - (this.mathlist.path = [ - { relation: 'body', offset: 0 }, - ]), - this.mathlist.forEach(t => { - (t.caret = ''), - (t.isSelected = !1), - (t.containsCaret = !1); - }); - const e = this.$hasFocus(); - if ( - (this.mathlist.isCollapsed() - ? (this.mathlist.anchor().caret = - e && !this.config.readOnly ? this.mode : '') - : this.mathlist.forEachSelected(t => { - t.isSelected = !0; - }), - e && !this.config.readOnly) - ) { - let t = this.mathlist.ancestor(1), - e = 1, - i = !1; - for (; t && !i; ) - ('surd' !== t.type && 'leftright' !== t.type) || - ((t.containsCaret = !0), (i = !0)), - (e += 1), - (t = this.mathlist.ancestor(e)); - } - const i = te.decompose( - { - mathstyle: 'displaystyle', - generateID: { - seed: this._hash(), - groupNumbers: t.forHighlighting, - }, - macros: this.config.macros, - }, - this.mathlist.root - ), - s = N.makeSpan(i, 'ML__base'); - s.attributes = { translate: 'no', 'aria-hidden': 'true' }; - const a = N.makeSpan('', 'ML__strut'); - a.setStyle('height', s.height, 'em'); - const o = [a]; - if (0 !== s.depth) { - const t = N.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 = N.makeSpan(o, 'ML__mathlive'); - (this.field.innerHTML = n.toMarkup( - 0, - this.config.horizontalSpacingScale - )), - this.field.classList.toggle( - 'ML__focused', - e && !this.config.readOnly - ), - (this.accessibleNode.innerHTML = - "" + - te.toMathML(this.mathlist.root, this.config) + - ''); - 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]); - } - } - _onPaste() { - return (this.pasteInProgress = !0), !0; - } - _onCut() { - return ( - setTimeout( - function() { - this.$clearSelection(), this._requestUpdate(); - }.bind(this), - 0 - ), - !0 - ); - } - _onCopy(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(); - } - formatMathlist(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 = te.toSpeakableText(t, this.config); - else if ('spoken-text' === e) { - const e = this.config.textToSpeechMarkup; - (this.config.textToSpeechMarkup = ''), - (i = te.toSpeakableText(t, this.config)), - (this.config.textToSpeechMarkup = e); - } else if ( - 'spoken-ssml' === e || - 'spoken-ssml-withHighlighting' === e - ) { - const s = this.config.textToSpeechMarkup, - a = this.config.generateID; - (this.config.textToSpeechMarkup = 'ssml'), - 'spoken-ssml-withHighlighting' === e && - (this.config.generateID = !0), - (i = te.toSpeakableText(t, this.config)), - (this.config.textToSpeechMarkup = s), - (this.config.generateID = a); - } else if ('json' === e) { - const e = te.toAST(t, this.config); - i = JSON.stringify(e); - } else - 'ASCIIMath' === e && - (i = (function t(e, i) { - if (!e) return ''; - if (Array.isArray(e)) { - let i = ''; - if (0 === e.length) return ''; - if ( - ('first' === e[0].type && e.shift(), - 'text' === e[0].mode) - ) { - let s = 0; - for ( - i = '"'; - e[s] && 'text' === e[s].mode; - - ) - (i += e[s].body), s++; - i += '"' + t(e.slice(s)); - } else { - let s = 0; - for (; e[s] && 'math' === e[s].mode; ) - (i += t(e[s])), s++; - i += t(e.slice(s)); - } - return i.trim(); - } - if ('text' === e.mode) return '"' + e.body + '"'; - let s = ''; - const a = e.latex ? e.latex.trim() : null; - let o; - switch (e.type) { - case 'group': - case 'root': - s = t(e.body); - break; - case 'array': - break; - case 'genfrac': - (e.leftDelim || e.rightDelim) && - (s += - '.' !== e.leftDelim && e.leftDelim - ? e.leftDelim - : '{:'), - e.hasBarLine - ? ((s += '('), - (s += t(e.numer)), - (s += ')/('), - (s += t(e.denom)), - (s += ')')) - : ((s += '(' + t(e.numer) + '),'), - (s += '(' + t(e.denom) + ')')), - (e.leftDelim || e.rightDelim) && - (s += - '.' !== e.rightDelim && - e.rightDelim - ? e.rightDelim - : '{:'); - break; - case 'surd': - e.index - ? (s += - 'root(' + - t(e.index) + - ')(' + - t(e.body) + - ')') - : (s += 'sqrt(' + t(e.body) + ')'); - break; - case 'leftright': - (s += - '.' !== e.leftDelim && e.leftDelim - ? e.leftDelim - : '{:'), - (s += t(e.body)), - (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 = - hi[a] || - a || - ('string' == typeof e.body - ? e.body - : '')), - '\\' === s[0] && (s += ''), - (o = a - ? a.match( - /[{]?\\char"([0-9abcdefABCDEF]*)[}]?/ - ) - : null), - o - ? (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 && hi[a] - ? hi[a] - : a && di[a] - ? di[a] - : e.body; - break; - case 'mopen': - case 'mclose': - s += e.body; - break; - case 'mpunct': - s = di[a] || a; - break; - case 'mop': - '​' !== e.body && - ((s = ''), - (s += - '\\operatorname' === a - ? t(e.body) - : e.body || a), - (s += ' ')); - break; - case 'mathstyle': - case 'box': - case 'spacing': - case 'enclose': - break; - case 'space': - s = ' '; - } - if (e.subscript) { - s += '_'; - const i = t(e.subscript); - i.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(i) - ? (s += '(' + i + ')') - : (s += i); - } - if (e.superscript) { - s += '^'; - const i = t(e.superscript); - i.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(i) - ? (s += '(' + i + ')') - : (s += i); - } - return s; - })(t, this.config)); - return i; - } - $text(t) { - return this.formatMathlist(this.mathlist.root, t); - } - $selectedText(t) { - const e = this.mathlist.getSelectedAtoms(); - if (!e) return ''; - const i = te.makeRoot('math', e); - return this.formatMathlist(i, t); - } - $selectionIsCollapsed() { - return this.mathlist.isCollapsed(); - } - $selectionDepth() { - return this.mathlist.path.length; - } - _superscriptDepth() { - 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; - } - _subscriptDepth() { - 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; - } - $selectionAtStart() { - return 0 === this.mathlist.startOffset(); - } - $selectionAtEnd() { - return ( - this.mathlist.endOffset() >= - this.mathlist.siblings().length - 1 - ); - } - groupIsSelected() { - return ( - 0 === this.mathlist.startOffset() && - this.mathlist.endOffset() >= - this.mathlist.siblings().length - 1 - ); - } - $latex(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(); - } - $el() { - return this.element; - } - undo() { - return this.complete_(), this.undoManager.undo(this.config), !0; - } - redo() { - return this.complete_(), this.undoManager.redo(this.config), !0; - } - scrollIntoView() { - this.dirty && this._render(); - let t = this._getCaretPosition(); - const e = this.field.getBoundingClientRect(); - if (!t) { - const i = this._getSelectionBounds(); - i && - (t = { - x: i.right + e.left - this.field.scrollLeft, - y: i.top + e.top - this.field.scrollTop, - }); - } - if (t) { - const i = t.x - window.scrollX; - i < e.left - ? this.field.scroll({ - top: 0, - left: i - e.left + this.field.scrollLeft - 20, - behavior: 'smooth', - }) - : i > e.right && - this.field.scroll({ - top: 0, - left: i - e.right + this.field.scrollLeft + 20, - behavior: 'smooth', - }); - } - } - scrollToStart() { - this.field.scroll(0, 0); - } - scrollToEnd() { - const t = this.field.getBoundingClientRect(); - this.field.scroll(t.left - window.scrollX, 0); - } - enterCommandMode_() { - this.switchMode_('command'); - } - copyToClipboard_() { - return ( - this.$focus(), - this.mathlist.isCollapsed() && this.$select(), - document.execCommand('copy'), - !1 - ); - } - cutToClipboard_() { - return this.$focus(), document.execCommand('cut'), !0; - } - pasteFromClipboard_() { - return this.$focus(), document.execCommand('paste'), !0; - } - $insert(t, e) { - if ('string' == typeof t && t.length > 0) { - if ( - ((e = e || {}).focus && this.$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; - } - switchMode_(t, e, i) { - this._resetKeystrokeBuffer(), - (this.smartModeSuppressed = - /text|math/.test(this.mode) && /text|math/.test(t)), - e && - this.$insert(e, { - format: 'latex', - mode: { math: 'text', text: 'math' }[t], - }), - this.mathlist.decorateCommandStringAroundInsertionPoint(!1), - 'command' === t - ? (this.mathlist.removeSuggestion(), - Je.hidePopover(this), - (this.suggestionIndex = 0), - this.virtualKeyboardVisible && - this.switchKeyboardLayer_('lower-command'), - this.mathlist.insert('', { mode: 'math' })) - : (this.mode = t), - i && this.$insert(i, { format: 'latex', mode: t }), - 'function' == typeof this.config.onModeChange && - this.config.onModeChange(this, this.mode), - this._requestUpdate(); - } - complete_(t) { - if (((t = t || {}), Je.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 (At.commandAllowed(t, e)) { - const i = he.parseTokens( - n(e), - t, - null, - this.config.macros - ); - this.mathlist.spliceCommandStringAroundInsertionPoint( - i - ); - } else { - const i = he.parseTokens( - n(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; - } - _updateSuggestion() { - this.mathlist.positionInsertionPointAfterCommitedCommand(), - this.mathlist.removeSuggestion(); - const t = this.mathlist.extractCommandStringAroundInsertionPoint(), - e = At.suggest(t); - if (0 === e.length) - Je.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), - Je.showPopoverWithLatex(this, e[i].match, e.length > 1); - } - this._requestUpdate(); - } - nextSuggestion_() { - return ( - (this.suggestionIndex += 1), this._updateSuggestion(), !1 - ); - } - previousSuggestion_() { - if (((this.suggestionIndex -= 1), this.suggestionIndex < 0)) { - this.mathlist.removeSuggestion(); - const t = this.mathlist.extractCommandStringAroundInsertionPoint(), - e = At.suggest(t); - this.suggestionIndex = e.length - 1; - } - return this._updateSuggestion(), !1; - } - _attachButtonHandlers(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) - ), - gs(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))); - } - }), - gs(t, 'mouseleave touchcancel', function() { - t.classList.remove('pressed'); - }), - gs(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, - }) - )); - } - }), - gs(t, 'mouseenter', function(e) { - 1 === e.buttons && t.classList.add('pressed'); - }), - gs(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.$perform(JSON.parse(o)), - e.stopPropagation(), - e.preventDefault(); - }); - } - _makeButton(t, e, i, s) { - const a = document.createElement('span'); - return ( - (a.innerHTML = t), - e && a.classList.add([].slice.call(e.split(' '))), - i && a.setAttribute('aria-label', i), - this._attachButtonHandlers(a, s), - a - ); - } - showAlternateKeys_(t, e) { - const i = bs( - 'mathlive-alternate-keys-panel', - 'ML__keyboard alternate-keys' - ); - this.virtualKeyboard.classList.contains('material') && - i.classList.add('material'), - e.length >= 7 - ? (i.style.width = '286px') - : 4 === e.length || 2 === e.length - ? (i.style.width = '146px') - : 1 === e.length - ? (i.style.width = '86px') - : (i.style.width = '146px'), - (i.style.height = 'auto'); - let s = ''; - for (const t of e) - (s += ''), - (i.innerHTML = s), - ci.makeKeycap( - this, - i.getElementsByTagName('li'), - 'performAlternateKeys' - ); - const a = this.virtualKeyboard - .querySelector( - 'div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="' + - t + - '"]' - ) - .getBoundingClientRect(); - if (a) { - a.top - i.clientHeight < 0 && - ((i.style.width = 'auto'), - e.length <= 6 - ? (i.style.height = '56px') - : e.length <= 12 - ? (i.style.height = '108px') - : (i.style.height = '205px')); - const t = (a.top - i.clientHeight + 5).toString() + 'px', - s = - Math.max( - 0, - Math.min( - window.innerWidth - i.offsetWidth, - (a.left + a.right - i.offsetWidth) / 2 - ) - ) + 'px'; - (i.style.transform = 'translate(' + s + ',' + t + ')'), - i.classList.add('is-visible'); - } - return !1; - } - hideAlternateKeys_() { - const t = document.getElementById( - 'mathlive-alternate-keys-panel' - ); - return ( - t && - (t.classList.remove('is-visible'), - (t.innerHTML = ''), - xs(t)), - !1 - ); - } - performAlternateKeys_(t) { - return this.hideAlternateKeys_(), this.$perform(t); - } - switchKeyboardLayer_(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].dataset.layer === t) { - i = !0; - break; - } - if (i) - for (let i = 0; i < e.length; i++) - e[i].dataset.layer === t - ? e[i].classList.add('is-visible') - : e[i].classList.remove('is-visible'); - this.$focus(); - } - return !0; - } - shiftKeyboardLayer_() { - const t = this.virtualKeyboard.querySelectorAll( - 'div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action' - ); - if (t) - for (let e = 0; e < t.length; e++) { - const i = t[e]; - let s = i.getAttribute('data-shifted'); - if (s || /^[a-z]$/.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; - } - unshiftKeyboardLayer_() { - 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; - } - insertAndUnshiftKeyboardLayer_(t) { - return this.$insert(t), this.unshiftKeyboardLayer_(), !0; - } - toggleVirtualKeyboardAlt_() { - let t = !1; - return ( - this.virtualKeyboard && - ((t = this.virtualKeyboard.classList.contains( - 'material' - )), - this.virtualKeyboard.remove(), - delete this.virtualKeyboard, - (this.virtualKeyboard = null)), - this.showVirtualKeyboard_(t ? '' : 'material'), - !1 - ); - } - toggleVirtualKeyboardShift_() { - this.config.virtualKeyboardLayout = { - qwerty: 'azerty', - azerty: 'qwertz', - qwertz: 'dvorak', - dvorak: 'colemak', - colemak: 'qwerty', - }[this.config.virtualKeyboardLayout]; - let t = this.virtualKeyboard - ? this.virtualKeyboard.querySelector( - 'div.keyboard-layer.is-visible' - ) - : null; - return ( - (t = t ? t.id : ''), - this.virtualKeyboard && - (this.virtualKeyboard.remove(), - delete this.virtualKeyboard, - (this.virtualKeyboard = null)), - this.showVirtualKeyboard_(), - t && this.switchKeyboardLayer_(t), - !1 - ); - } - showVirtualKeyboard_(t) { - return ( - (this.virtualKeyboardVisible = !1), - this.toggleVirtualKeyboard_(t), - !1 - ); - } - hideVirtualKeyboard_() { - return ( - (this.virtualKeyboardVisible = !0), - this.toggleVirtualKeyboard_(), - !1 - ); - } - toggleVirtualKeyboard_(t) { - if ( - ((this.virtualKeyboardVisible = !this - .virtualKeyboardVisible), - this.virtualKeyboardVisible) - ) { - this.virtualKeyboard - ? this.virtualKeyboard.classList.add('is-visible') - : ((this.virtualKeyboard = ci.make(this, t)), - gs( - this.virtualKeyboard, - 'touchstart:passive mousedown', - function() { - e.$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 - ); - } - $applyStyle(t) { - if ( - (this._resetKeystrokeBuffer(), - (t = (function(t) { - const e = {}; - return ( - 'string' == typeof t.mode && - (e.mode = t.mode.toLowerCase()), - 'string' == typeof t.color && (e.color = t.color), - 'string' == typeof t.backgroundColor && - (e.backgroundColor = t.backgroundColor), - 'string' == typeof t.fontFamily && - (e.fontFamily = t.fontFamily), - 'string' == typeof t.series && - (e.fontSeries = t.series), - 'string' == typeof t.fontSeries && - (e.fontSeries = t.fontSeries.toLowerCase()), - e.fontSeries && - (e.fontSeries = - { bold: 'b', medium: 'm', normal: 'mn' }[ - e.fontSeries - ] || e.fontSeries), - 'string' == typeof t.shape && - (e.fontShape = t.shape), - 'string' == typeof t.fontShape && - (e.fontShape = t.fontShape.toLowerCase()), - e.fontShape && - (e.fontShape = - { - italic: 'it', - up: 'n', - upright: 'n', - normal: 'n', - }[e.fontShape] || e.fontShape), - 'string' == typeof t.size - ? (e.fontSize = t.size) - : 'number' == typeof t.size && - (e.fontSize = - 'size' + - Math.min(0, Math.max(10, t.size))), - 'string' == typeof t.fontSize && - (e.fontSize = t.fontSize.toLowerCase()), - e.fontSize && - (e.fontSize = - { - tiny: 'size1', - scriptsize: 'size2', - footnotesize: 'size3', - small: 'size4', - normal: 'size5', - normalsize: 'size5', - large: 'size6', - Large: 'size7', - LARGE: 'size8', - huge: 'size9', - Huge: 'size10', - }[e.fontSize] || e.fontSize), - e - ); - })(t)).mode) - ) { - if (this.mathlist.isCollapsed()) this.switchMode_(t.mode); - else { - const t = this.mode, - e = - 'math' === - (this.mathlist.anchorMode() || - this.config.default) - ? 'text' - : 'math'; - let i = this.$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 - ); - } - $hasFocus() { - return ( - document.hasFocus() && - document.activeElement === this.textarea - ); - } - $focus() { - this.$hasFocus() || - (this.textarea.focus && this.textarea.focus(), - this._announce('line')); - } - $blur() { - this.$hasFocus() && this.textarea.blur && this.textarea.blur(); - } - $select() { - this.mathlist.selectAll_(); - } - $clearSelection() { - this.mathlist.delete_(); - } - $keystroke(t, e) { - return this._onKeystroke(t, e); - } - $typedText(t) { - this._onTypedText(t); - } - typedText_(t, e) { - return this._onTypedText(t, e); - } - $setConfig(t) { - if ( - (this.config || - (this.config = { - namespace: '', - overrideDefaultInlineShortcuts: !1, - readOnly: !1, - removeExtraneousParentheses: !0, - scriptDepth: [1 / 0, 1 / 0], - smartFence: !0, - smartSuperscript: !0, - virtualKeyboard: '', - virtualKeyboardLayout: 'qwerty', - }), - (this.config = { ...this.config, ...t }), - void 0 !== this.config.scriptDepth && - !Array.isArray(this.config.scriptDepth)) - ) { - const t = parseInt(this.config.scriptDepth); - this.config.scriptDepth = [t, t]; - } - if ( - (void 0 === this.config.removeExtraneousParentheses && - (this.config.removeExtraneousParentheses = !0), - (this.config.onAnnounce = t.onAnnounce || Ms), - (this.config.macros = Object.assign( - {}, - At.MACROS, - this.config.macros - )), - !/^[a-z]*[-]?$/.test(this.config.namespace)) - ) - throw Error( - 'options.namespace must be a string of lowercase characters only' - ); - /-$/.test(this.config.namespace) || - (this.config.namespace += '-'), - (Qe.locale = this.config.locale || Qe.locale), - Qe.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', - }[Qe.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 = 0.5), - (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 = 0.5), - (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 = 0.5)), - this.config.keypressSound.return && - ((this.returnKeypressSound = new Audio()), - (this.returnKeypressSound.preload = 'none'), - (this.returnKeypressSound.src = this.config.keypressSound.return), - (this.returnKeypressSound.volume = 0.5)), - this.config.keypressSound.delete && - ((this.deleteKeypressSound = new Audio()), - (this.deleteKeypressSound.preload = 'none'), - (this.deleteKeypressSound.src = this.config.keypressSound.delete), - (this.deleteKeypressSound.volume = 0.5)))), - this.config.plonkSound && - ((this.plonkSound = new Audio()), - (this.plonkSound.preload = 'none'), - (this.plonkSound.src = this.config.plonkSound), - (this.plonkSound.volume = 0.5)), - this.readOnly && this._onBlur(), - this._requestUpdate(); - } - speak_(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'), - e.withHighlighting && (s.generateID = !0)); - const a = te.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 - ); - } - } - let ws, - Ss = 0; - function As(t, e, i) { - const s = Object.assign({}, t.config); - return ( - (s.textToSpeechMarkup = ''), - (s.textToSpeechRulesOptions = s.textToSpeechRulesOptions || {}), - (s.textToSpeechRulesOptions.markup = 'none'), - e + te.toSpeakableText(i, s) - ); - } - function Ms(t, e, i, s) { - let a = ''; - 'plonk' === e - ? (t.plonkSound && - (t.plonkSound.load(), t.plonkSound.play().catch(t => {})), - t._resetKeystrokeBuffer()) - : 'delete' === e - ? (a = As(t, 'deleted: ', s)) - : 'focus' === e || /move/.test(e) - ? (a = - (t.mathlist.isCollapsed() ? '' : 'selected: ') + - t._nextAtomSpeechText(i)) - : 'replacement' === e - ? (a = As(t, '', t.mathlist.sibling(0))) - : 'line' === e - ? ((a = As(t, '', t.mathlist.root)), - (t.accessibleNode.innerHTML = - '' + - te.toMathML(t.mathlist.root, t.config) + - ''), - t.textarea.setAttribute('aria-label', 'after: ' + a)) - : (a = s ? As(t, e + ' ', s) : e); - const o = /\u00a0/.test(t.ariaLiveText.textContent) ? '   ' : '   '; - t.ariaLiveText.textContent = a + o; - } - (vs.prototype.undo_ = vs.prototype.undo), - (vs.prototype.redo_ = vs.prototype.redo), - (vs.prototype.scrollIntoView_ = vs.prototype.scrollIntoView), - (vs.prototype.scrollToStart_ = vs.prototype.scrollToStart), - (vs.prototype.scrollToEnd_ = vs.prototype.scrollToEnd), - (vs.prototype.insert_ = vs.prototype.$insert); - var Cs = { isValidMathfield: ks, MathField: vs }; - function _s(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 Ts(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; - (r = n.indexOf(e)), - -1 !== r && - ((c = r), - c > 0 && - a.push({ type: 'text', data: n.slice(0, c) }), - (l = !1)); - let h = !1; - for (; !h; ) { - if (l) { - if (((r = n.indexOf(e, c)), -1 === r)) { - h = !0; - break; - } - c !== r && - a.push({ type: 'text', data: n.slice(c, r) }), - (c = r); - } else { - if (((r = _s(i, n, c + e.length)), -1 === r)) { - 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 Ls(t, e) { - let i = [{ type: 'text', data: t }]; - for (let t = 0; t < e.inline.length; t++) { - const s = e.inline[t]; - i = Ts(i, s[0], s[1], 'textstyle'); - } - for (let t = 0; t < e.display.length; t++) { - const s = e.display[t]; - i = Ts(i, s[0], s[1], 'displaystyle'); - } - return i; - } - function Fs(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 = - "" + - e.renderToMathML(t, e) + - ''; - } 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()), - i.appendChild(Fs(t, void 0, e, !0)); - else { - const s = Ls(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(Fs(s[t].data, s[t].mathstyle, e, !0)); - } - return i; - } - const zs = { - 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 Es = { - renderMathInElement: function(t, e) { - try { - if ( - (((e = Object.assign( - {}, - zs, - e - )).ignoreClassPattern = new RegExp(e.ignoreClass)), - (e.processClassPattern = new RegExp(e.processClass)), - (e.processScriptTypePattern = new RegExp( - e.processScriptType - )), - (e.macros = At.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 = Fs( - 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(Fs(t, void 0, i, !0)) - ); - const s = Ls(t, i.TeX.delimiters); - if (1 === s.length && 'math' === s[0].type) - return ( - (e.textContent = ''), - void e.appendChild( - Fs(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 = Fs(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 qs(t, e, i, s) { - e = e || 'displaystyle'; - const a = n(t), - o = he.parseTokens(a, 'math', null, s); - if ('mathlist' === i) return o; - let r = te.decompose({ mathstyle: e }, o); - if (((r = N.coalesce(r)), 'span' === i)) return r; - const l = N.makeSpan(r, 'ML__base'), - c = N.makeSpan('', 'ML__strut'); - c.setStyle('height', l.height, 'em'); - const h = [c]; - if (0 !== l.depth) { - const t = N.makeSpan('', 'ML__strut--bottom'); - t.setStyle('height', l.height + l.depth, 'em'), - t.setStyle('vertical-align', -l.depth, 'em'), - h.push(t); - } - return h.push(l), N.makeSpan(h, 'ML__mathlive').toMarkup(); - } - function Is(t, e) { - if (!te.toMathML) return ''; - ((e = e || {}).macros = e.macros || {}), - Object.assign(e.macros, At.MACROS); - const i = he.parseTokens(n(t), 'math', null, e.macros); - return te.toMathML(i, e); - } - function Ps(t, e) { - if (!te.toSpeakableText) return ''; - ((e = e || {}).macros = e.macros || {}), - Object.assign(e.macros, At.MACROS); - const i = he.parseTokens(n(t), 'math', null, e.macros); - return te.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 => {}); - } - }); - } - } else e.speechEngine; - else { - const e = new SpeechSynthesisUtterance(t); - window && window.speechSynthesis.speak(e); - } - } - function Bs(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 $s(t) { - let e = t; - if ('string' == typeof t && ((e = document.getElementById(t)), !e)) - throw Error(`The element with ID "${t}" could not be found.`); - return e; - } - function Rs(t, e) { - Es && - (((e = e || {}).renderToMarkup = e.renderToMarkup || qs), - (e.renderToMathML = e.renderToMathML || Is), - (e.renderToSpeakableText = e.renderToSpeakableText || Ps), - (e.macros = e.macros || At.MACROS), - Es.renderMathInElement($s(t), e)); - } - function Ks(t) { - if (t.namespace) { - if (!/^[a-z]+[-]?$/.test(t.namespace)) - throw Error( - 'options.namespace must be a string of lowercase characters only' - ); - /-$/.test(t.namespace) || (t.namespace += '-'); - } - } - return { - latexToMarkup: qs, - latexToMathML: Is, - latexToSpeakableText: Ps, - latexToAST: function(t, e) { - if (!te.toAST) return {}; - ((e = e || {}).macros = e.macros || {}), - Object.assign(e.macros, At.MACROS); - const i = he.parseTokens(n(t), 'math', null, e.macros); - return te.toAST(i, e); - }, - astToLatex: function(t, e) { - return ps(t, e); - }, - makeMathField: function(t, e) { - if (!Cs) throw Error('The MathField module is not loaded.'); - return ( - ((e = e || {}).handleSpeak = e.handleSpeak || Os), - (e.handleReadAloud = e.handleReadAloud || Bs), - new Cs.MathField($s(t), e) - ); - }, - renderMathInDocument: function(t) { - Rs(document.body, t); - }, - renderMathInElement: Rs, - revertToOriginalContent: function(t, e) { - (t = (t = $s(t)).children[1]) instanceof Cs.MathField - ? t.revertToOriginalContent() - : (Ks((e = e || {})), - (t.innerHTML = t.getAttribute( - 'data-' + (e.namespace || '') + 'original-content' - ))); - }, - getOriginalContent: function(t, e) { - return (t = (t = $s(t)).children[1]) instanceof Cs.MathField - ? t.originalContent - : (Ks((e = e || {})), - t.getAttribute( - 'data-' + (e.namespace || '') + 'original-content' - )); - }, - readAloud: Bs, - readAloudStatus: function() { - return window - ? 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d=Vt(t,[i,o,c,s]);if(!this.index)return this.bind(t,Nt([r,d],"sqrt"));const p=t.clone({mathstyle:M.SCRIPTSCRIPT}),m=Kt(Qt(p,this.index),e.adjustTo(M.SCRIPTSCRIPT)),u=Math.max(r.height,d.height),f=Math.max(r.depth,d.depth),g=Vt(t,[m],"shift",-.6*(u-f));return this.bind(t,Nt([Kt(g,"root"),r,d],"sqrt"))}decomposeAccent(t){const e=t.mathstyle;let i=Qt(t.cramp(),this.body);(this.superscript||this.subscript)&&(i=this.attachSupsub(t,Nt(i),"mord"));let s=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(s=N.skew(i));const a=Math.min(N.height(i),e.metrics.xHeight),o=N.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Kt(Kt(o),"accent-body"+n);return r=Vt(t,[i,-a,r]),r.children[1].setLeft(2*s),Nt(r,"accent")}decomposeLine(t){const e=t.mathstyle,i=Qt(t.cramp(),this.body),s=h.defaultRuleThickness/e.sizeMultiplier,a=Kt(null,t.mathstyle.adjustTo(M.TEXT)+" "+this.position+"-line");let o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=Vt(t,[i,3*s,a,s]);else{const e=Kt(i);o=Vt(t,[s,a,3*s,e],"top",N.height(e))}return Nt(o,this.position)}decomposeOverunder(t){const e=Qt(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?Kt(Qt(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?Kt(Qt(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return Yt(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Kt(Qt(t,this.body),"inner");return Nt([e,Kt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Nt("","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===M.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=N.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op")),i.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=N.makeOp(Qt(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===M.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Nt(Qt(t,this.body)),i=Kt();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:h.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + 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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",(N.height(e)+N.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+='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=Kt("​","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),i.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.containsCaret&&(Array.isArray(i)?(i[0].classes=(i[0].classes||"")+" ML__contains-caret",i[i.length-1].classes=(i[i.length-1].classes||"")+" ML__contains-caret"):i.classes=(i.classes||"")+" ML__contains-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=Qt(t.sup(),this.superscript);a=Kt(e,s.adjustTo(s.sup()))}if(this.subscript){const e=Qt(t.sub(),this.subscript);o=Kt(e,s.adjustTo(s.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=N.height(e)-s.metrics.supDrop,l=N.depth(e)+s.metrics.subDrop),n=s===M.DISPLAY?s.metrics.sup1:s.cramped?s.metrics.sup3:s.metrics.sup2;const c=M.TEXT.sizeMultiplier*s.sizeMultiplier,d=.5/h.ptPerEm/c;let p=null;if(o&&a){r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),l=Math.max(l,s.metrics.sub2);const i=h.defaultRuleThickness;if(r-N.depth(a)-(N.height(o)-l)<4*i){l=4*i-(r-a.depth)+N.height(o);const t=.8*s.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Vt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,N.height(o)-.8*s.metrics.xHeight),p=Vt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),p=Vt(t,[a],"shift",-r),p.children[0].setRight(d));const m=Kt(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(i,[e,m])}attachLimits(t,e,i,s){const a=this.superscript?Kt(Qt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Kt(Qt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Yt(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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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=N.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 Xt(t){const e=Kt("​","arraycolsep");return e.setWidth(t,"em"),e}function Jt(t,e,i,s){const a=[];for(const o of e){const e=Kt(Qt(t,s));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-i)}return Vt(t,a,"individualShift")}function Yt(t,e,i,s,a,o,n){if(!a&&!o)return e;e=Kt(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+i;c=Vt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-s),c.children[2].setLeft(s)}else if(o&&!a){const a=N.height(e)-i;c=Vt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-s)}else if(!o&&a){const o=N.depth(e)+i;c=Vt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(s)}return N.makeSpanOfType(n,c,"op-limits")}function Qt(t,e){function i(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function s(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Gt[t.size]/Gt[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var te={MathAtom:Zt,decompose:Qt,makeRoot:function(t,e){const i=new Zt(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new Zt("","first")),i},GREEK_REGEX:Ut};const ee={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},ie={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 se=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=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1=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)},ae=function(t){let e=t.toUpperCase();for(const t in ie)if(ie[t]===e){e=t;break}for(const t in ee)if(ee[t]===e){e=t;break}return e},oe=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ne=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const re=te.MathAtom;class le{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=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 se(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);let e;return this.skipWhitespace(),e=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"),e}scanSkip(){const t=this.scanDimen();return 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=_e(e.array);i>=0;i--)t(Ce(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},we.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const 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},we.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=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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=_e(i.array);let s=e-1;for(;!t&&s0)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)}},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=Se(this);i=this.extent+t;const a=e+i;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)},we.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=Se(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),n<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&&n0&&(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)}},we.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)},we.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=Se(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"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 this.suppressChangeNotifications=i,!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},we.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},we.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},we.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];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=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},we.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=At.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;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),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},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new te.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},we.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))},we.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++},we.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.row0){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 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>ks(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete 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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()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){if(this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,i=this._pathFromPoint(d,p,{bias:0}),i){let 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t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 As(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+=As(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof 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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=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(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),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(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),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){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))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()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(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(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=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=ve.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=At.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;iks(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,i=!1;for(;t&&!i;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,i=!0),e+=1,t=this.mathlist.ancestor(e)}const i=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=N.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=N.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=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=hi[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&hi[a]?hi[a]:a&&di[a]?di[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=di[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=te.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const i=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=he.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.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),Je.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(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)),gs(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))}})),gs(t,"mouseleave touchcancel",(function(){t.classList.remove("pressed")})),gs(t,"touchmove:passive",(function(t){t.preventDefault();for(let e=0;e=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+="";s="
      "+s+"
    ",i.innerHTML=s,ci.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}hideAlternateKeys_(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",xs(t)),!1}performAlternateKeys_(t){return this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(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=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",e.withHighlighting&&(s.generateID=!0));const a=te.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}}let ws,Ss=0;function As(t,e,i){const s=Object.assign({},t.config);return s.textToSpeechMarkup="",s.textToSpeechRulesOptions=s.textToSpeechRulesOptions||{},s.textToSpeechRulesOptions.markup="none",e+te.toSpeakableText(i,s)}function Ms(t,e,i,s){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>{})),t._resetKeystrokeBuffer()):"delete"===e?a=As(t,"deleted: ",s):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(i):"replacement"===e?a=As(t,"",t.mathlist.sibling(0)):"line"===e?(a=As(t,"",t.mathlist.root),t.accessibleNode.innerHTML=''+te.toMathML(t.mathlist.root,t.config)+"",t.textarea.setAttribute("aria-label","after: "+a)):a=s?As(t,e+" ",s):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}vs.prototype.undo_=vs.prototype.undo,vs.prototype.redo_=vs.prototype.redo,vs.prototype.scrollIntoView_=vs.prototype.scrollIntoView,vs.prototype.scrollToStart_=vs.prototype.scrollToStart,vs.prototype.scrollToEnd_=vs.prototype.scrollToEnd,vs.prototype.insert_=vs.prototype.$insert;var Cs={isValidMathfield:ks,MathField:vs};function _s(t,e,i){let s=i,a=0;const o=t.length;for(;s0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(r=n.indexOf(e,c),-1===r){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(r=_s(i,n,c+e.length),-1===r){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"+e.renderToMathML(t,e)+""}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(),i.appendChild(Fs(t,void 0,e,!0));else{const s=Ls(t,e.TeX.delimiters);if(1===s.length&&"text"===s[0].type)return null;i=document.createDocumentFragment();for(let t=0;t{})}}))}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Bs(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.time0&&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 $s(t){let e=t;if("string"==typeof t&&(e=document.getElementById(t),!e))throw Error(`The element with ID "${t}" could not be found.`);return e}function Rs(t,e){Es&&((e=e||{}).renderToMarkup=e.renderToMarkup||qs,e.renderToMathML=e.renderToMathML||Is,e.renderToSpeakableText=e.renderToSpeakableText||Ps,e.macros=e.macros||At.MACROS,Es.renderMathInElement($s(t),e))}function Ks(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}return{latexToMarkup:qs,latexToMathML:Is,latexToSpeakableText:Ps,latexToAST:function(t,e){if(!te.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,At.MACROS);const i=he.parseTokens(n(t),"math",null,e.macros);return te.toAST(i,e)},astToLatex:function(t,e){return ps(t,e)},makeMathField:function(t,e){if(!Cs)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Os,e.handleReadAloud=e.handleReadAloud||Bs,new Cs.MathField($s(t),e)},renderMathInDocument:function(t){Rs(document.body,t)},renderMathInElement:Rs,revertToOriginalContent:function(t,e){(t=(t=$s(t)).children[1])instanceof Cs.MathField?t.revertToOriginalContent():(Ks(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=$s(t)).children[1])instanceof Cs.MathField?t.originalContent:(Ks(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Bs,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,s Date: Thu, 6 Feb 2020 07:13:31 -0800 Subject: [PATCH 18/28] bug: Fix #372 when substituting a multi-token argument, do not insert a group --- src/core/parser.js | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/src/core/parser.js b/src/core/parser.js index 2166d5be6..8b9b78427 100644 --- a/src/core/parser.js +++ b/src/core/parser.js @@ -1360,22 +1360,13 @@ class Parser { } } } else if (token.type === '#') { - // Parameter token in an implicit group (not as a parameter) + // Parameter token 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)) { - const 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(); - } + // Otherwise, substitute the token with a provided argument + result = this.args[token.value] || this.placeholder(); } } else { console.warn( From f404735385d8492baf8691f52b9ddebb25a5391c Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Thu, 6 Feb 2020 07:49:56 -0800 Subject: [PATCH 19/28] bug: fix #371 --- src/editor/editor-mathfield.js | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/src/editor/editor-mathfield.js b/src/editor/editor-mathfield.js index 9b1d39552..a09a7316e 100644 --- a/src/editor/editor-mathfield.js +++ b/src/editor/editor-mathfield.js @@ -866,7 +866,22 @@ class MathField { // smart mode this._resetKeystrokeBuffer(); this.smartModeSuppressed = false; - anchor = this._pathFromPoint(anchorX, anchorY, { bias: 0 }); + + const wrapperBounds = this.field + .querySelector('.ML__mathlive') + .getBoundingClientRect(); + if (anchorX > wrapperBounds.right) { + // If outside the bounds of the rendered formula, + // set the anchor to the last element of the root + anchor = [ + { + relation: 'body', + offset: this.mathlist.root.body.length - 1, + }, + ]; + } else { + anchor = this._pathFromPoint(anchorX, anchorY, { bias: 0 }); + } if (anchor) { // Create divs to block out pointer tracking to the left and right of // the mathfield (to avoid triggering the hover of the virtual From 0ab0500004e65bd8cbfb80db1bb0f0eac9eed88d Mon Sep 17 00:00:00 2001 From: Arno Gourdol Date: Thu, 6 Feb 2020 07:59:40 -0800 Subject: [PATCH 20/28] dist --- CHANGELOG.md | 8 ++++++++ dist/mathlive.js | 2 +- dist/mathlive.mjs | 2 +- dist/src/core/parser.js | 15 +++------------ dist/src/editor/editor-mathfield.js | 17 ++++++++++++++++- 5 files changed, 29 insertions(+), 15 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index eeca9d140..40f659202 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,3 +1,11 @@ +## 0. + +### Bug Fixes + +- #371: When clicking after the last element in the mathfield, always set the anchor to be the last element in the root, i.e. as if `moveToMathFieldEnd` had been performed. For example, if the content is "x^2", clicking after the end of the field will put the caret after the last element (not after the "2" in the superscript) + +- #372: Using an argument in a macro will result in the argument to be substituted without a group being inserted. Previously, `#1` with `ax` as a value for the first argument would have resulted in `{ax}`. This was noticeable when using the `x^2` key in the virtual keyboard: if the equation was `ab`, pressing that key resulted in `{ab}^2`. 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d=Vt(t,[i,o,c,s]);if(!this.index)return this.bind(t,Nt([r,d],"sqrt"));const p=t.clone({mathstyle:M.SCRIPTSCRIPT}),m=Kt(Qt(p,this.index),e.adjustTo(M.SCRIPTSCRIPT)),u=Math.max(r.height,d.height),f=Math.max(r.depth,d.depth),g=Vt(t,[m],"shift",-.6*(u-f));return this.bind(t,Nt([Kt(g,"root"),r,d],"sqrt"))}decomposeAccent(t){const e=t.mathstyle;let i=Qt(t.cramp(),this.body);(this.superscript||this.subscript)&&(i=this.attachSupsub(t,Nt(i),"mord"));let s=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(s=N.skew(i));const a=Math.min(N.height(i),e.metrics.xHeight),o=N.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Kt(Kt(o),"accent-body"+n);return r=Vt(t,[i,-a,r]),r.children[1].setLeft(2*s),Nt(r,"accent")}decomposeLine(t){const e=t.mathstyle,i=Qt(t.cramp(),this.body),s=h.defaultRuleThickness/e.sizeMultiplier,a=Kt(null,t.mathstyle.adjustTo(M.TEXT)+" "+this.position+"-line");let o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=Vt(t,[i,3*s,a,s]);else{const e=Kt(i);o=Vt(t,[s,a,3*s,e],"top",N.height(e))}return Nt(o,this.position)}decomposeOverunder(t){const e=Qt(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?Kt(Qt(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?Kt(Qt(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return Yt(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Kt(Qt(t,this.body),"inner");return Nt([e,Kt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Nt("","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===M.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=N.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op")),i.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=N.makeOp(Qt(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===M.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Nt(Qt(t,this.body)),i=Kt();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:h.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + 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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",(N.height(e)+N.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+='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=Kt("​","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),i.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.containsCaret&&(Array.isArray(i)?(i[0].classes=(i[0].classes||"")+" ML__contains-caret",i[i.length-1].classes=(i[i.length-1].classes||"")+" ML__contains-caret"):i.classes=(i.classes||"")+" ML__contains-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=Qt(t.sup(),this.superscript);a=Kt(e,s.adjustTo(s.sup()))}if(this.subscript){const e=Qt(t.sub(),this.subscript);o=Kt(e,s.adjustTo(s.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=N.height(e)-s.metrics.supDrop,l=N.depth(e)+s.metrics.subDrop),n=s===M.DISPLAY?s.metrics.sup1:s.cramped?s.metrics.sup3:s.metrics.sup2;const c=M.TEXT.sizeMultiplier*s.sizeMultiplier,d=.5/h.ptPerEm/c;let p=null;if(o&&a){r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),l=Math.max(l,s.metrics.sub2);const i=h.defaultRuleThickness;if(r-N.depth(a)-(N.height(o)-l)<4*i){l=4*i-(r-a.depth)+N.height(o);const t=.8*s.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Vt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,N.height(o)-.8*s.metrics.xHeight),p=Vt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),p=Vt(t,[a],"shift",-r),p.children[0].setRight(d));const m=Kt(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(i,[e,m])}attachLimits(t,e,i,s){const a=this.superscript?Kt(Qt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Kt(Qt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Yt(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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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=N.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 Xt(t){const e=Kt("​","arraycolsep");return e.setWidth(t,"em"),e}function Jt(t,e,i,s){const a=[];for(const o of e){const e=Kt(Qt(t,s));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-i)}return Vt(t,a,"individualShift")}function Yt(t,e,i,s,a,o,n){if(!a&&!o)return e;e=Kt(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+i;c=Vt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-s),c.children[2].setLeft(s)}else if(o&&!a){const a=N.height(e)-i;c=Vt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-s)}else if(!o&&a){const o=N.depth(e)+i;c=Vt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(s)}return N.makeSpanOfType(n,c,"op-limits")}function Qt(t,e){function i(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function s(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Gt[t.size]/Gt[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var te={MathAtom:Zt,decompose:Qt,makeRoot:function(t,e){const i=new Zt(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new Zt("","first")),i},GREEK_REGEX:Ut};const ee={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},ie={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 se=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=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1=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)},ae=function(t){let e=t.toUpperCase();for(const t in ie)if(ie[t]===e){e=t;break}for(const t in ee)if(ee[t]===e){e=t;break}return e},oe=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ne=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const re=te.MathAtom;class le{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=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 se(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);let e;return this.skipWhitespace(),e=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"),e}scanSkip(){const t=this.scanDimen();return 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=_e(e.array);i>=0;i--)t(Ce(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},we.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},we.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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=_e(i.array);let s=e-1;for(;!t&&s0)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)}},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=Se(this);i=this.extent+t;const a=e+i;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)},we.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=Se(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),n<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&&n0&&(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)}},we.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)},we.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=Se(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"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 this.suppressChangeNotifications=i,!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},we.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},we.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},we.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];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=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},we.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=At.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;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),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},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new te.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},we.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))},we.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++},we.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.row0){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 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>ks(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete 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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()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){if(this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1,i=this._pathFromPoint(d,p,{bias:0}),i){let 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t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 As(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+=As(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof 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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=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(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),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(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),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){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))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()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(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(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=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=ve.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=At.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;iks(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,i=!1;for(;t&&!i;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,i=!0),e+=1,t=this.mathlist.ancestor(e)}const i=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=N.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=N.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=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=hi[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&hi[a]?hi[a]:a&&di[a]?di[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=di[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=te.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const i=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=he.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.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),Je.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(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)),gs(t,"mousedown 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d=Vt(t,[i,o,c,s]);if(!this.index)return this.bind(t,Nt([r,d],"sqrt"));const p=t.clone({mathstyle:M.SCRIPTSCRIPT}),m=Kt(Qt(p,this.index),e.adjustTo(M.SCRIPTSCRIPT)),u=Math.max(r.height,d.height),f=Math.max(r.depth,d.depth),g=Vt(t,[m],"shift",-.6*(u-f));return this.bind(t,Nt([Kt(g,"root"),r,d],"sqrt"))}decomposeAccent(t){const e=t.mathstyle;let i=Qt(t.cramp(),this.body);(this.superscript||this.subscript)&&(i=this.attachSupsub(t,Nt(i),"mord"));let s=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(s=N.skew(i));const a=Math.min(N.height(i),e.metrics.xHeight),o=N.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Kt(Kt(o),"accent-body"+n);return r=Vt(t,[i,-a,r]),r.children[1].setLeft(2*s),Nt(r,"accent")}decomposeLine(t){const e=t.mathstyle,i=Qt(t.cramp(),this.body),s=h.defaultRuleThickness/e.sizeMultiplier,a=Kt(null,t.mathstyle.adjustTo(M.TEXT)+" "+this.position+"-line");let o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=Vt(t,[i,3*s,a,s]);else{const e=Kt(i);o=Vt(t,[s,a,3*s,e],"top",N.height(e))}return Nt(o,this.position)}decomposeOverunder(t){const e=Qt(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?Kt(Qt(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?Kt(Qt(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return Yt(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Kt(Qt(t,this.body),"inner");return Nt([e,Kt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Nt("","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===M.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=N.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op")),i.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=N.makeOp(Qt(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===M.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Nt(Qt(t,this.body)),i=Kt();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:h.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + 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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",(N.height(e)+N.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+='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=Kt("​","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),i.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.containsCaret&&(Array.isArray(i)?(i[0].classes=(i[0].classes||"")+" ML__contains-caret",i[i.length-1].classes=(i[i.length-1].classes||"")+" ML__contains-caret"):i.classes=(i.classes||"")+" ML__contains-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=Qt(t.sup(),this.superscript);a=Kt(e,s.adjustTo(s.sup()))}if(this.subscript){const e=Qt(t.sub(),this.subscript);o=Kt(e,s.adjustTo(s.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=N.height(e)-s.metrics.supDrop,l=N.depth(e)+s.metrics.subDrop),n=s===M.DISPLAY?s.metrics.sup1:s.cramped?s.metrics.sup3:s.metrics.sup2;const c=M.TEXT.sizeMultiplier*s.sizeMultiplier,d=.5/h.ptPerEm/c;let p=null;if(o&&a){r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),l=Math.max(l,s.metrics.sub2);const i=h.defaultRuleThickness;if(r-N.depth(a)-(N.height(o)-l)<4*i){l=4*i-(r-a.depth)+N.height(o);const t=.8*s.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Vt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,N.height(o)-.8*s.metrics.xHeight),p=Vt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),p=Vt(t,[a],"shift",-r),p.children[0].setRight(d));const m=Kt(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(i,[e,m])}attachLimits(t,e,i,s){const a=this.superscript?Kt(Qt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Kt(Qt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Yt(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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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=N.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 Xt(t){const e=Kt("​","arraycolsep");return e.setWidth(t,"em"),e}function Jt(t,e,i,s){const a=[];for(const o of e){const e=Kt(Qt(t,s));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-i)}return Vt(t,a,"individualShift")}function Yt(t,e,i,s,a,o,n){if(!a&&!o)return e;e=Kt(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+i;c=Vt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-s),c.children[2].setLeft(s)}else if(o&&!a){const a=N.height(e)-i;c=Vt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-s)}else if(!o&&a){const o=N.depth(e)+i;c=Vt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(s)}return N.makeSpanOfType(n,c,"op-limits")}function Qt(t,e){function i(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function s(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Gt[t.size]/Gt[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var te={MathAtom:Zt,decompose:Qt,makeRoot:function(t,e){const i=new Zt(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new Zt("","first")),i},GREEK_REGEX:Ut};const ee={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},ie={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 se=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=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1=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)},ae=function(t){let e=t.toUpperCase();for(const t in ie)if(ie[t]===e){e=t;break}for(const t in ee)if(ee[t]===e){e=t;break}return e},oe=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ne=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const re=te.MathAtom;class le{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=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 se(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);let e;return this.skipWhitespace(),e=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"),e}scanSkip(){const t=this.scanDimen();return 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=_e(e.array);i>=0;i--)t(Ce(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},we.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},we.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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=_e(i.array);let s=e-1;for(;!t&&s0)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)}},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=Se(this);i=this.extent+t;const a=e+i;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)},we.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=Se(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),n<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&&n0&&(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)}},we.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)},we.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=Se(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"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 this.suppressChangeNotifications=i,!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},we.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},we.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},we.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];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=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},we.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=At.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;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),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},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new te.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},we.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))},we.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++},we.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.row0){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 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0===t.deltaX?t.detail:-t.deltaX;isFinite(e)||(e=t.wheelDelta/10),this.field.scroll({top:0,left:this.field.scrollLeft-5*e})},{passive:!1}),this.virtualKeyboardToggleDOMNode=this.element.children[a++].children[1],this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode,{default:"toggleVirtualKeyboard",alt:"toggleVirtualKeyboardAlt",shift:"toggleVirtualKeyboardShift"}),this.ariaLiveText=this.element.children[a].children[0],this.accessibleNode=this.element.children[a++].children[1],this.popover=bs("mathlive-popover-panel","ML__popover"),this.keystrokeCaption=bs("mathlive-keystroke-caption-panel","ML__keystroke-caption"),this.keystrokeCaptionVisible=!1,this.virtualKeyboardVisible=!1,this.keystrokeBuffer="",this.keystrokeBufferStates=[],this.keystrokeBufferResetTimer=null,this.suggestionIndex=0,this.mode=e.defaultMode||"math",this.smartModeSuppressed=!1,this.style={},this.blurred=!0,gs(this.element,"focus",this),gs(this.element,"blur",this),gs(this.textarea,"cut",this),gs(this.textarea,"copy",this),gs(this.textarea,"paste",this),He.delegateKeyboardEvents(this.textarea,{container:this.element,allowDeadKey:()=>"text"===this.mode,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)}),window.PointerEvent?gs(this.field,"pointerdown",this):gs(this.field,"touchstart:active 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>ks(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,ys(this.textarea,"cut",this),ys(this.textarea,"copy",this),ys(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,xs(this.popover),xs(this.keystrokeCaption),xs(this.virtualKeyboard),xs(document.getElementById("mathlive-alternate-keys-panel")),ys(this.element,"pointerdown",this),ys(this.element,"touchstart:active mousedown",this),ys(this.element,"focus",this),ys(this.element,"blur",this),ys(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let i;return Array.from(e.children).forEach((function(e){i=i||t(e)})),i}(this.field);if(t){const 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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()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1;const r=this.field.querySelector(".ML__mathlive").getBoundingClientRect();if(i=d>r.right?[{relation:"body",offset:this.mathlist.root.body.length-1}]:this._pathFromPoint(d,p,{bias:0}),i){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),i=me.clone(this.mathlist.path),i[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||Ss>2?(n(t),3!==t.detail&&3!==Ss||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(gs(e.field,"pointermove",h),gs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(gs(window,"blur",n),t.touches?(gs(t.target,"touchmove",h),gs(t.target,"touchend",n)):(gs(window,"mousemove",h),gs(window,"mouseup",n))),2!==t.detail&&2!==Ss||(a=!0,this.mathlist.selectGroup_()))}}else ws=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 As(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+=As(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,i)}_onFocus(){this.config.readOnly||this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),Je.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())}_onBlur(){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))}_onResize(){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"),Je.updatePopoverPosition(this)}toggleKeystrokeCaption_(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")}_showKeystroke(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=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(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),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(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),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){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))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()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(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(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=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=ve.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=At.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;iks(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,i=!1;for(;t&&!i;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,i=!0),e+=1,t=this.mathlist.ancestor(e)}const i=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=N.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=N.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=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=hi[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&hi[a]?hi[a]:a&&di[a]?di[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=di[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=te.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const i=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=he.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.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),Je.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const i=this;let s,a,o,n,r;"object"==typeof 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d=Vt(t,[s,o,c,i]);if(!this.index)return this.bind(t,Nt([r,d],"sqrt"));const p=t.clone({mathstyle:M.SCRIPTSCRIPT}),m=Kt(Qt(p,this.index),e.adjustTo(M.SCRIPTSCRIPT)),u=Math.max(r.height,d.height),f=Math.max(r.depth,d.depth),g=Vt(t,[m],"shift",-.6*(u-f));return this.bind(t,Nt([Kt(g,"root"),r,d],"sqrt"))}decomposeAccent(t){const e=t.mathstyle;let s=Qt(t.cramp(),this.body);(this.superscript||this.subscript)&&(s=this.attachSupsub(t,Nt(s),"mord"));let i=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(i=N.skew(s));const a=Math.min(N.height(s),e.metrics.xHeight),o=N.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Kt(Kt(o),"accent-body"+n);return r=Vt(t,[s,-a,r]),r.children[1].setLeft(2*i),Nt(r,"accent")}decomposeLine(t){const e=t.mathstyle,s=Qt(t.cramp(),this.body),i=h.defaultRuleThickness/e.sizeMultiplier,a=Kt(null,t.mathstyle.adjustTo(M.TEXT)+" "+this.position+"-line");let o;if(a.height=i,a.maxFontSize=1,"overline"===this.position)o=Vt(t,[s,3*i,a,i]);else{const e=Kt(s);o=Vt(t,[i,a,3*i,e],"top",N.height(e))}return Nt(o,this.position)}decomposeOverunder(t){const e=Qt(t,this.body),s=t.clone({mathstyle:"scriptstyle"}),i=this.overscript?Kt(Qt(s,this.overscript),t.mathstyle.adjustTo(s.mathstyle)):null,a=this.underscript?Kt(Qt(s,this.underscript),t.mathstyle.adjustTo(s.mathstyle)):null;return Yt(t,e,0,0,i,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Kt(Qt(t,this.body),"inner");return Nt([e,Kt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,s=Nt("","rule");let i=this.shift&&!isNaN(this.shift)?this.shift:0;i/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return s.setStyle("border-right-width",a,"em"),s.setStyle("border-top-width",o,"em"),s.setStyle("margin-top",-(o-i),"em"),s.setStyle("border-color",t.color),s.width=a,s.height=o+i,s.depth=-i,s}decomposeOp(t){const e=t.mathstyle;let s,i=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(i=!0);let a=0,o=0;if(this.symbol){const n=i?"Size2-Regular":"Size1-Regular";s=N.makeSymbol(n,this.body,"op-symbol "+(i?"large-op":"small-op")),s.type="mop",a=(s.height-s.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=s.italic,this.bind(t,s)}else Array.isArray(this.body)?(s=N.makeOp(Qt(t,this.body)),this.bind(t,s)):s=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const i=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===i||"auto"===i&&e.size===M.DISPLAY.size?this.attachLimits(t,s,a,o):this.attachSupsub(t,s,"mop")}return this.symbol&&s.setTop(a),s}decomposeBox(t){const e=Nt(Qt(t,this.body)),s=Kt();s.setStyle("position","absolute");const i="number"==typeof this.padding?this.padding:h.fboxsep;s.setStyle("height",e.height+e.depth+2*i,"em"),0!==i?s.setStyle("width","calc(100% + 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i="";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",(N.height(e)+N.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&&(i+='0?s.setWidth(this.width):s.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";s=Kt("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?s=this.decomposeBox(t):"enclose"===this.type?s=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(s=this.makeSpan(t,this.body),s.classes="",this.error&&(s.classes+=" ML__error"),this.suggestion&&(s.classes+=" ML__suggestion")):"placeholder"===this.type?s=this.makeSpan(t,"⬚"):"first"===this.type&&(s=this.makeSpan(t,"​"));if(!s)return s;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(s)?s[s.length-1].caret=this.caret:s.caret=this.caret),this.containsCaret&&(Array.isArray(s)?(s[0].classes=(s[0].classes||"")+" ML__contains-caret",s[s.length-1].classes=(s[s.length-1].classes||"")+" ML__contains-caret"):s.classes=(s.classes||"")+" ML__contains-caret"),!this.limits&&(this.superscript||this.subscript))if(Array.isArray(s)){const e=s[s.length-1];s[s.length-1]=this.attachSupsub(t,e,e.type)}else s=[this.attachSupsub(t,s,s.type)];return Array.isArray(s)?s:[s]}attachSupsub(t,e,s){if(!this.superscript&&!this.subscript)return e;const i=t.mathstyle;let a=null,o=null;if(this.superscript){const e=Qt(t.sup(),this.superscript);a=Kt(e,i.adjustTo(i.sup()))}if(this.subscript){const e=Qt(t.sub(),this.subscript);o=Kt(e,i.adjustTo(i.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=N.height(e)-i.metrics.supDrop,l=N.depth(e)+i.metrics.subDrop),n=i===M.DISPLAY?i.metrics.sup1:i.cramped?i.metrics.sup3:i.metrics.sup2;const c=M.TEXT.sizeMultiplier*i.sizeMultiplier,d=.5/h.ptPerEm/c;let p=null;if(o&&a){r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),l=Math.max(l,i.metrics.sub2);const s=h.defaultRuleThickness;if(r-N.depth(a)-(N.height(o)-l)<4*s){l=4*s-(r-a.depth)+N.height(o);const t=.8*i.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Vt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,i.metrics.sub1,N.height(o)-.8*i.metrics.xHeight),p=Vt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),p=Vt(t,[a],"shift",-r),p.children[0].setRight(d));const m=Kt(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(s,[e,m])}attachLimits(t,e,s,i){const a=this.superscript?Kt(Qt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Kt(Qt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Yt(t,e,s,i,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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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 s="textord"===this.type?"mord":this.type,i=N.makeSpanOfType(s,e),a=this.getStyle();i.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+o):t.parentSize!==t.size&&(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+t.size),i.maxFontSize=Math.max(i.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(i.classes+=" ML__text"),t.mathstyle.isTight()&&(i.isTight=!0),"math"!==this.mode&&(i.italic=0),i.setRight(i.italic),"number"==typeof t.opacity&&i.setStyle("opacity",t.opacity),this.bind(t,i),this.caret&&(this.superscript||this.subscript||(i.caret=this.caret,t.mathstyle.isTight()&&(i.isTight=!0))),i}}function Xt(t){const e=Kt("​","arraycolsep");return e.setWidth(t,"em"),e}function Jt(t,e,s,i){const a=[];for(const o of e){const e=Kt(Qt(t,i));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-s)}return Vt(t,a,"individualShift")}function Yt(t,e,s,i,a,o,n){if(!a&&!o)return e;e=Kt(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+s;c=Vt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-i),c.children[2].setLeft(i)}else if(o&&!a){const a=N.height(e)-s;c=Vt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-i)}else if(!o&&a){const o=N.depth(e)+s;c=Vt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(i)}return N.makeSpanOfType(n,c,"op-limits")}function Qt(t,e){function s(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function i(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Gt[t.size]/Gt[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var te={MathAtom:Zt,decompose:Qt,makeRoot:function(t,e){const s=new Zt(t=t||"math","root",e||[]);return 0!==s.body.length&&"first"===s.body[0].type||s.body.unshift(new Zt("","first")),s},GREEK_REGEX:Ut};const ee={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},se={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 ie=function(t){const e=t.toLowerCase().split("!");let s,i,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=0&&(o=(1-l)*o+l*s,n=(1-l)*n+l*i,r=(1-l)*r+l*a,l=-1),t+1=0&&(o=l*o+(1-l)*s,n=l*n+(1-l)*i,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)},ae=function(t){let e=t.toUpperCase();for(const t in se)if(se[t]===e){e=t;break}for(const t in ee)if(ee[t]===e){e=t;break}return e},oe=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ne=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const re=te.MathAtom;class le{constructor(t,e,s){this.tokens=t,this.index=0,this.args=e,this.macros=s,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=t.length}const a=t.toUpperCase()===i.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 ie(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let s=10,i=/[0-9]/;this.parseLiteral("'")?(s=8,i=/[0-7]/,t=!0):(this.parseLiteral('"')||this.parseLiteral("x"))&&(s=16,i=/[0-9A-F]/,t=!0);let a="";for(;this.hasLiteralPattern(i);)a+=this.get().value;if(!t&&(this.parseLiteral(".")||this.parseLiteral(",")))for(a+=".";this.hasLiteralPattern(i);)a+=this.get().value;const o=t?parseInt(a,s):parseFloat(a);return e?-o:o}scanDimen(){const t=this.scanNumber(!1);let e;return this.skipWhitespace(),e=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"),e}scanSkip(){const t=this.scanDimen();return 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t=s.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==s.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let s=e.length-1;s>=0;s--)"command"===e[s].type?e.splice(s,1):t(e[s]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let s=_e(e.array);s>=0;s--)t(Ce(e.array,s))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let s=this.startOffset();if("text"===t[s].mode)for(;s>=1&&"text"===t[s].mode;)e.unshift(t[s]),s--;else for(;s>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[s].type);)e.unshift(t[s]),s--;return e},we.prototype.setSelection=function(t,e,s){t=t||0,e=e||0;const i=this.path[this.path.length-1].relation;s||(s=i);const a=this.parent();if(!a&&"body"!==s)return!1;const o=s.startsWith("cell");if(!o&&!a[s]||o&&!a.array)return!1;const n=s!==i;this.path[this.path.length-1].relation=s;const r=this.siblings().length;this.path[this.path.length-1].relation=i;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=s,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},we.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let s=e[this.relation()];const i=this.parent();for(;s&&!i[s];)s=e[s];if(s)return void this.setSelection(0,0,s);if(this.parent().array){const t=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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 s=this.anchor();if(!s.captureSelection){let t;if(s.array){t="";const e=_e(s.array);let i=e-1;for(;!t&&i0)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)}},we.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const s=this.relation();if("denom"===s)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=Me(this.parent().array,s);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const s=this.relation();if("numer"===s)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=Me(this.parent().array,s);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,s=0;const i=Se(this);s=this.extent+t;const a=e+s;if(a<0&&0!==s){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",i);e=this.path[this.path.length-1].offset,s=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",i);this.isCollapsed()&&(e-=1),s-=1}this.setSelection(e,s),this._announce("move",i)},we.prototype.skip=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=Se(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(s&&(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),n<0&&!s)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 s="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(s){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",i)}},we.prototype.jump=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,i.length-1));const o=t<0?0:i.length-1;s?this.extend(o-a):this.move(o-a)},we.prototype.jumpToMathFieldBoundary=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const i=Se(this),a=[{relation:"body",offset:this.path[0].offset}];let o;s?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(i,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"])',s=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let i=s.indexOf(document.activeElement)+t;i<0&&(i=s.length-1),i>=s.length&&(i=0),s[i].focus()}return this.suppressChangeNotifications=s,!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",i),this.selectionDidChange(),this.suppressChangeNotifications=s,!0},we.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e=i.mode),s+=1,i=this.ancestor(s);return e},we.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e={color:i.color,backgroundColor:i.backgroundColor,fontFamily:i.fontFamily,fontShape:i.fontShape,fontSeries:i.fontSeries,fontSize:i.fontSize}),s+=1,i=this.ancestor(s);return e},we.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 s=0,i=0,a=0;for(let o=0;t[e].body[o];o++)"genfrac"===t[e].body[o].type&&(s++,i=o),"first"!==t[e].body[o].type&&a++;0===a&&1===s&&(t[e]=t[e].body[i])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const s=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const i=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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,e.macros,!1));!function t(e,s){e&&s&&(Array.isArray(e)?e.forEach(e=>t(e,s)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(s),t(e.body,s),t(e.numer,s),t(e.denom,s),t(e.index,s),t(e.overscript,s),t(e.underscript,s),t(e.subscript,s),t(e.superscript,s))))}(o,e.style);const h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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=i,"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=s},we.prototype._insertSmartFence=function(t,e){const s=this.parent();if("leftright"===s.type&&"|"!==s.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 i=At.RIGHT_DELIM[t];if(i&&("leftright"!==s.type||"|"!==s.leftDelim)){let s="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;s=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",s+=a?"?":i;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(s,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),a){if(s&&"leftright"===s.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),s.rightDelim=t,this.move(1),this.contentDidChange(),!0;const i=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==i[a].type||"?"!==i[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),i[a].rightDelim=t,i[a].body=i[a].body.concat(i.slice(a+1,this.endOffset()+1)),i.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(s&&"leftright"===s.type&&"?"===s.rightDelim){this.contentWillChange(),s.rightDelim=t;const e=i.slice(this.endOffset()+1);return i.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()===i.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let s=e.start;for(;s=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const s=[],i=t.substr(e);for(const t of i){const e=new te.MathAtom("command","command",t);e.suggestion=!0,s.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(s))},we.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))},we.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++},we.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.row0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(s+=1)}i.row+=1}return s}(t,e.col)){!function(t,e){let 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof 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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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 s=t?t.path:[],i=this.mathlist.path,a=i[i.length-1];let o="";for(;s.length>i.length;)o+="out of "+e(t.parent(),s[s.length-1])+"; ",s.pop();if(!this.mathlist.isCollapsed())return Ai(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+=Ai(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,s){"function"==typeof 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e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const s=this.element.getBoundingClientRect();e.style.left=s.left+"px",e.style.top=s.top-64+"px",e.innerHTML=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,s=!1,i=[],a=!1;if(Array.isArray(t)?(e=t[0],i=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](...i),/^(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=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,s=!0}else"function"==typeof this[e]&&(a=this[e](...i),s=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),s}performWithFeedback_(t){return this.$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=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"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=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let s=0,i=!1;for(this.mathlist.contentWillChange();!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a),i||(a.applyStyle({mode:"text"}),a.latex=a.body),s-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let s=0,i=!1;for(;!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),i||a.applyStyle({mode:"math",type:"mord"}),s-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}}getTextBeforeAnchor_(){let t="",e=0,s=!1;for(;!s;){const i=this.mathlist.sibling(e);s=!(i&&("text"===i.mode&&!i.type||"math"===i.mode&&/mord|textord|mpunct/.test(i.type))),s||(t=i.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(s));const i=this.getTextBeforeAnchor_()+s;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(s))return!0;if(/[\^_]/.test(s))return/(^|\s)[a-zA-Z][^_]$/.test(i)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[s];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(i))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(s))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(i))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(i)){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]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(i))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(s))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(i)&&!/(dxd|abc|xyz|uvw)$/.test(i))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(i))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(i)&&!/(αβγ)$/.test(i))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(s))return!0}return!1}_onKeystroke(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let s,i,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!s&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const i=this.mode;s?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==i&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(s||a||(a=ve.selectorForKeystroke(this.mode,t)),!s&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!s){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.$perform(a)||s)&&s){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(s)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const s=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[i],{...this.config,suppressChangeNotifications:!0}),this.mode=s}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(s,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),s.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),s=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(s),s))return}let s="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=i(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),i=At.suggest(e+t);a=i.length>1,0===i.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),i[0].match!==e+t&&this.mathlist.insertSuggestion(i[0].match,-i[0].match.length+e.length+1),s=i[0].match)}else if("math"===this.mode){const s={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(s){if("moveToSuperscript"===s){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===s&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$perform(s)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,s,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let s=0;ski(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,s=!1;for(;t&&!s;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,s=!0),e+=1,t=this.mathlist.ancestor(e)}const s=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),i=N.makeSpan(s,"ML__base");i.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",i.height,"em");const o=[a];if(0!==i.depth){const t=N.makeSpan("","ML__strut--bottom");t.setStyle("height",i.height+i.depth,"em"),t.setStyle("vertical-align",-i.depth,"em"),o.push(t)}o.push(i);const n=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(t,e){let s="";if("latex"===(e=e||"latex")||"latex-expanded"===e)s=t.toLatex("latex-expanded"===e);else if("mathML"===e)s=t.toMathML(this.config);else if("spoken"===e)s=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",s=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const i=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),s=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=i,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);s=JSON.stringify(e)}else"ASCIIMath"===e&&(s=function t(e,s){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 i=0;for(s='"';e[i]&&"text"===e[i].mode;)s+=e[i].body,i++;s+='"'+t(e.slice(i))}else{let i=0;for(;e[i]&&"math"===e[i].mode;)s+=t(e[i]),i++;s+=t(e.slice(i))}return s.trim()}if("text"===e.mode)return'"'+e.body+'"';let i="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":i=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(i+="(",i+=t(e.numer),i+=")/(",i+=t(e.denom),i+=")"):(i+="("+t(e.numer)+"),",i+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?i+="root("+t(e.index)+")("+t(e.body)+")":i+="sqrt("+t(e.body)+")";break;case"leftright":i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",i+=t(e.body),i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":i=hs[a]||a||("string"==typeof e.body?e.body:""),"\\"===i[0]&&(i+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?i=String.fromCharCode(parseInt("0x"+o[1])):i.length>0&&"\\"===i.charAt(0)&&(i="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":i=a&&hs[a]?hs[a]:a&&ds[a]?ds[a]:e.body;break;case"mopen":case"mclose":i+=e.body;break;case"mpunct":i=ds[a]||a;break;case"mop":"​"!==e.body&&(i="",i+="\\operatorname"===a?t(e.body):e.body||a,i+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":i=" "}if(e.subscript){i+="_";const s=t(e.subscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}if(e.superscript){i+="^";const s=t(e.superscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}return i}(t,this.config));return s}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const s=te.makeRoot("math",e);return this.formatMathlist(s,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!0:s.subscript&&(i=!1),e+=1,s=this.mathlist.ancestor(e);return i?t:0}_subscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!1:s.subscript&&(i=!0),e+=1,s=this.mathlist.ancestor(e);return i?t:0}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const s=this._getSelectionBounds();s&&(t={x:s.right+e.left-this.field.scrollLeft,y:s.top+e.top-this.field.scrollTop})}if(t){const s=t.x-window.scrollX;se.right&&this.field.scroll({top:0,left:s-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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 s=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=s)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1}switchMode_(t,e,s){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,s&&this.$insert(s,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const s=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(s)}else{const s=he.parseTokens(n(e),t,null,this.config.macros);s?this.mathlist.spliceCommandStringAroundInsertionPoint(s):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const s=this.suggestionIndex%e.length,i=t.length-e[s].match.length;0!==i&&this.mathlist.insertSuggestion(e[s].match,i),Je.showPopoverWithLatex(this,e[s].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const s=this;let i,a,o,n,r;"object"==typeof 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d=Vt(t,[i,o,c,s]);if(!this.index)return this.bind(t,Nt([r,d],"sqrt"));const p=t.clone({mathstyle:M.SCRIPTSCRIPT}),m=Kt(Qt(p,this.index),e.adjustTo(M.SCRIPTSCRIPT)),u=Math.max(r.height,d.height),f=Math.max(r.depth,d.depth),g=Vt(t,[m],"shift",-.6*(u-f));return this.bind(t,Nt([Kt(g,"root"),r,d],"sqrt"))}decomposeAccent(t){const e=t.mathstyle;let i=Qt(t.cramp(),this.body);(this.superscript||this.subscript)&&(i=this.attachSupsub(t,Nt(i),"mord"));let s=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(s=N.skew(i));const a=Math.min(N.height(i),e.metrics.xHeight),o=N.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Kt(Kt(o),"accent-body"+n);return r=Vt(t,[i,-a,r]),r.children[1].setLeft(2*s),Nt(r,"accent")}decomposeLine(t){const e=t.mathstyle,i=Qt(t.cramp(),this.body),s=h.defaultRuleThickness/e.sizeMultiplier,a=Kt(null,t.mathstyle.adjustTo(M.TEXT)+" "+this.position+"-line");let o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=Vt(t,[i,3*s,a,s]);else{const e=Kt(i);o=Vt(t,[s,a,3*s,e],"top",N.height(e))}return Nt(o,this.position)}decomposeOverunder(t){const e=Qt(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?Kt(Qt(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?Kt(Qt(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return Yt(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Kt(Qt(t,this.body),"inner");return Nt([e,Kt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Nt("","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===M.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=N.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op")),i.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=N.makeOp(Qt(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===M.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Nt(Qt(t,this.body)),i=Kt();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:h.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + 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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",(N.height(e)+N.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+='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=Kt("​","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),i.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.containsCaret&&(Array.isArray(i)?(i[0].classes=(i[0].classes||"")+" ML__contains-caret",i[i.length-1].classes=(i[i.length-1].classes||"")+" ML__contains-caret"):i.classes=(i.classes||"")+" ML__contains-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=Qt(t.sup(),this.superscript);a=Kt(e,s.adjustTo(s.sup()))}if(this.subscript){const e=Qt(t.sub(),this.subscript);o=Kt(e,s.adjustTo(s.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=N.height(e)-s.metrics.supDrop,l=N.depth(e)+s.metrics.subDrop),n=s===M.DISPLAY?s.metrics.sup1:s.cramped?s.metrics.sup3:s.metrics.sup2;const c=M.TEXT.sizeMultiplier*s.sizeMultiplier,d=.5/h.ptPerEm/c;let p=null;if(o&&a){r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),l=Math.max(l,s.metrics.sub2);const i=h.defaultRuleThickness;if(r-N.depth(a)-(N.height(o)-l)<4*i){l=4*i-(r-a.depth)+N.height(o);const t=.8*s.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Vt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,N.height(o)-.8*s.metrics.xHeight),p=Vt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),p=Vt(t,[a],"shift",-r),p.children[0].setRight(d));const m=Kt(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(i,[e,m])}attachLimits(t,e,i,s){const a=this.superscript?Kt(Qt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Kt(Qt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Yt(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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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=N.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 Xt(t){const e=Kt("​","arraycolsep");return e.setWidth(t,"em"),e}function Jt(t,e,i,s){const a=[];for(const o of e){const e=Kt(Qt(t,s));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-i)}return Vt(t,a,"individualShift")}function Yt(t,e,i,s,a,o,n){if(!a&&!o)return e;e=Kt(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+i;c=Vt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-s),c.children[2].setLeft(s)}else if(o&&!a){const a=N.height(e)-i;c=Vt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-s)}else if(!o&&a){const o=N.depth(e)+i;c=Vt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(s)}return N.makeSpanOfType(n,c,"op-limits")}function Qt(t,e){function i(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function s(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Gt[t.size]/Gt[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var te={MathAtom:Zt,decompose:Qt,makeRoot:function(t,e){const i=new Zt(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new Zt("","first")),i},GREEK_REGEX:Ut};const ee={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},ie={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 se=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=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1=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)},ae=function(t){let e=t.toUpperCase();for(const t in ie)if(ie[t]===e){e=t;break}for(const t in ee)if(ee[t]===e){e=t;break}return e},oe=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ne=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const re=te.MathAtom;class le{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=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 se(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);let e;return this.skipWhitespace(),e=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"),e}scanSkip(){const t=this.scanDimen();return 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=_e(e.array);i>=0;i--)t(Ce(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},we.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},we.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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=_e(i.array);let s=e-1;for(;!t&&s0)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)}},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=Se(this);i=this.extent+t;const a=e+i;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)},we.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=Se(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),n<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&&n0&&(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)}},we.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)},we.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=Se(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"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 this.suppressChangeNotifications=i,!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},we.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},we.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},we.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];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=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},we.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=At.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;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),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},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new te.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},we.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))},we.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++},we.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.row0){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 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0===t.deltaX?t.detail:-t.deltaX;isFinite(e)||(e=t.wheelDelta/10),this.field.scroll({top:0,left:this.field.scrollLeft-5*e})},{passive:!1}),this.virtualKeyboardToggleDOMNode=this.element.children[a++].children[1],this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode,{default:"toggleVirtualKeyboard",alt:"toggleVirtualKeyboardAlt",shift:"toggleVirtualKeyboardShift"}),this.ariaLiveText=this.element.children[a].children[0],this.accessibleNode=this.element.children[a++].children[1],this.popover=bs("mathlive-popover-panel","ML__popover"),this.keystrokeCaption=bs("mathlive-keystroke-caption-panel","ML__keystroke-caption"),this.keystrokeCaptionVisible=!1,this.virtualKeyboardVisible=!1,this.keystrokeBuffer="",this.keystrokeBufferStates=[],this.keystrokeBufferResetTimer=null,this.suggestionIndex=0,this.mode=e.defaultMode||"math",this.smartModeSuppressed=!1,this.style={},this.blurred=!0,gs(this.element,"focus",this),gs(this.element,"blur",this),gs(this.textarea,"cut",this),gs(this.textarea,"copy",this),gs(this.textarea,"paste",this),He.delegateKeyboardEvents(this.textarea,{container:this.element,allowDeadKey:()=>"text"===this.mode,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)}),window.PointerEvent?gs(this.field,"pointerdown",this):gs(this.field,"touchstart:active 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>ks(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,ys(this.textarea,"cut",this),ys(this.textarea,"copy",this),ys(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,xs(this.popover),xs(this.keystrokeCaption),xs(this.virtualKeyboard),xs(document.getElementById("mathlive-alternate-keys-panel")),ys(this.element,"pointerdown",this),ys(this.element,"touchstart:active mousedown",this),ys(this.element,"focus",this),ys(this.element,"blur",this),ys(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let i;return Array.from(e.children).forEach((function(e){i=i||t(e)})),i}(this.field);if(t){const 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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()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1;const r=this.field.querySelector(".ML__mathlive").getBoundingClientRect();if(i=d>r.right?[{relation:"body",offset:this.mathlist.root.body.length-1}]:this._pathFromPoint(d,p,{bias:0}),i){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),i=me.clone(this.mathlist.path),i[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||Ss>2?(n(t),3!==t.detail&&3!==Ss||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(gs(e.field,"pointermove",h),gs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(gs(window,"blur",n),t.touches?(gs(t.target,"touchmove",h),gs(t.target,"touchend",n)):(gs(window,"mousemove",h),gs(window,"mouseup",n))),2!==t.detail&&2!==Ss||(a=!0,this.mathlist.selectGroup_()))}}else ws=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 As(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+=As(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,i)}_onFocus(){this.config.readOnly||this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),Je.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())}_onBlur(){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))}_onResize(){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"),Je.updatePopoverPosition(this)}toggleKeystrokeCaption_(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")}_showKeystroke(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=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(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),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(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),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){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))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()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(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(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=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=ve.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=At.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;iks(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,i=!1;for(;t&&!i;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,i=!0),e+=1,t=this.mathlist.ancestor(e)}const i=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=N.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=N.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=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=hi[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&hi[a]?hi[a]:a&&di[a]?di[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=di[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=te.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const i=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=he.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.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),Je.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(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)),gs(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))}})),gs(t,"mouseleave touchcancel",(function(){t.classList.remove("pressed")})),gs(t,"touchmove:passive",(function(t){t.preventDefault();for(let e=0;e=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+="";s="
      "+s+"
    ",i.innerHTML=s,ci.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}hideAlternateKeys_(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",xs(t)),!1}performAlternateKeys_(t){return this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(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=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",e.withHighlighting&&(s.generateID=!0));const a=te.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}}let ws,Ss=0;function As(t,e,i){const s=Object.assign({},t.config);return s.textToSpeechMarkup="",s.textToSpeechRulesOptions=s.textToSpeechRulesOptions||{},s.textToSpeechRulesOptions.markup="none",e+te.toSpeakableText(i,s)}function Ms(t,e,i,s){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>{})),t._resetKeystrokeBuffer()):"delete"===e?a=As(t,"deleted: ",s):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(i):"replacement"===e?a=As(t,"",t.mathlist.sibling(0)):"line"===e?(a=As(t,"",t.mathlist.root),t.accessibleNode.innerHTML=''+te.toMathML(t.mathlist.root,t.config)+"",t.textarea.setAttribute("aria-label","after: "+a)):a=s?As(t,e+" ",s):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}vs.prototype.undo_=vs.prototype.undo,vs.prototype.redo_=vs.prototype.redo,vs.prototype.scrollIntoView_=vs.prototype.scrollIntoView,vs.prototype.scrollToStart_=vs.prototype.scrollToStart,vs.prototype.scrollToEnd_=vs.prototype.scrollToEnd,vs.prototype.insert_=vs.prototype.$insert;var Cs={isValidMathfield:ks,MathField:vs};function _s(t,e,i){let s=i,a=0;const o=t.length;for(;s0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(r=n.indexOf(e,c),-1===r){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(r=_s(i,n,c+e.length),-1===r){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"+e.renderToMathML(t,e)+""}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(),i.appendChild(Fs(t,void 0,e,!0));else{const s=Ls(t,e.TeX.delimiters);if(1===s.length&&"text"===s[0].type)return null;i=document.createDocumentFragment();for(let t=0;t{})}}))}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Os(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.time0&&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 $s(t){let e=t;if("string"==typeof t&&(e=document.getElementById(t),!e))throw Error(`The element with ID "${t}" could not be found.`);return e}function Rs(t,e){Es&&((e=e||{}).renderToMarkup=e.renderToMarkup||qs,e.renderToMathML=e.renderToMathML||Is,e.renderToSpeakableText=e.renderToSpeakableText||Ps,e.macros=e.macros||At.MACROS,Es.renderMathInElement($s(t),e))}function Ks(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}const Ns={latexToMarkup:qs,latexToMathML:Is,latexToSpeakableText:Ps,latexToAST:function(t,e){if(!te.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,At.MACROS);const i=he.parseTokens(n(t),"math",null,e.macros);return te.toAST(i,e)},astToLatex:function(t,e){return ps(t,e)},makeMathField:function(t,e){if(!Cs)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Bs,e.handleReadAloud=e.handleReadAloud||Os,new Cs.MathField($s(t),e)},renderMathInDocument:function(t){Rs(document.body,t)},renderMathInElement:Rs,revertToOriginalContent:function(t,e){(t=(t=$s(t)).children[1])instanceof Cs.MathField?t.revertToOriginalContent():(Ks(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=$s(t)).children[1])instanceof Cs.MathField?t.originalContent:(Ks(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Os,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,s wrapperBounds.right) { + // If outside the bounds of the rendered formula, + // set the anchor to the last element of the root + anchor = [ + { + relation: 'body', + offset: this.mathlist.root.body.length - 1, + }, + ]; + } else { + anchor = this._pathFromPoint(anchorX, anchorY, { bias: 0 }); + } if (anchor) { // Create divs to block out pointer tracking to the left and right of // the mathfield (to avoid triggering the hover of the virtual From 4d1f4b4cc914b25f8aa1589abaec1dcf54f7c50e Mon Sep 17 00:00:00 2001 From: "dependabot-preview[bot]" <27856297+dependabot-preview[bot]@users.noreply.github.com> Date: Sat, 15 Feb 2020 15:13:20 +0000 Subject: [PATCH 21/28] Bump rollup from 1.31.0 to 1.31.1 Bumps [rollup](https://github.com/rollup/rollup) from 1.31.0 to 1.31.1. - [Release notes](https://github.com/rollup/rollup/releases) - [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md) - [Commits](https://github.com/rollup/rollup/compare/v1.31.0...v1.31.1) Signed-off-by: dependabot-preview[bot] --- npm-shrinkwrap.json | 6 +++--- package.json | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json index 16677d35f..bf466bff7 100644 --- a/npm-shrinkwrap.json +++ b/npm-shrinkwrap.json @@ -10133,9 +10133,9 @@ } }, "rollup": { - "version": "1.31.0", - "resolved": "https://registry.npmjs.org/rollup/-/rollup-1.31.0.tgz", - "integrity": "sha512-9C6ovSyNeEwvuRuUUmsTpJcXac1AwSL1a3x+O5lpmQKZqi5mmrjauLeqIjvREC+yNRR8fPdzByojDng+af3nVw==", + "version": "1.31.1", + "resolved": "https://registry.npmjs.org/rollup/-/rollup-1.31.1.tgz", + "integrity": "sha512-2JREN1YdrS/kpPzEd33ZjtuNbOuBC3ePfuZBdKEybvqcEcszW1ckyVqzcEiEe0nE8sqHK+pbJg+PsAgRJ8+1dg==", "dev": true, "requires": { "@types/estree": "*", diff --git a/package.json b/package.json index d04529b6b..32e21ddf3 100644 --- a/package.json +++ b/package.json @@ -125,7 +125,7 @@ "postcss-cli": "^7.1.0", "prettier": "^1.19.1", "rimraf": "^3.0.1", - "rollup": "^1.31.0", + "rollup": "^1.31.1", "rollup-plugin-copy": "^3.3.0", "rollup-plugin-terser": "^5.2.0", "sutro-jsdoc-theme": "^1.0", From fa73380676356a6207d71e9a644ed0825c940fca Mon Sep 17 00:00:00 2001 From: "dependabot-preview[bot]" <27856297+dependabot-preview[bot]@users.noreply.github.com> Date: Sat, 15 Feb 2020 15:17:29 +0000 Subject: [PATCH 22/28] Bump rimraf from 3.0.1 to 3.0.2 Bumps [rimraf](https://github.com/isaacs/rimraf) from 3.0.1 to 3.0.2. - [Release notes](https://github.com/isaacs/rimraf/releases) - [Changelog](https://github.com/isaacs/rimraf/blob/master/CHANGELOG.md) - [Commits](https://github.com/isaacs/rimraf/compare/v3.0.1...v3.0.2) Signed-off-by: dependabot-preview[bot] --- npm-shrinkwrap.json | 6 +++--- package.json | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json index bf466bff7..4d7dc8bd7 100644 --- a/npm-shrinkwrap.json +++ b/npm-shrinkwrap.json @@ -10124,9 +10124,9 @@ "dev": true }, "rimraf": { - "version": "3.0.1", - "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.1.tgz", - "integrity": "sha512-IQ4ikL8SjBiEDZfk+DFVwqRK8md24RWMEJkdSlgNLkyyAImcjf8SWvU1qFMDOb4igBClbTQ/ugPqXcRwdFTxZw==", + "version": "3.0.2", + "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz", + "integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==", "dev": true, "requires": { "glob": "^7.1.3" diff --git a/package.json b/package.json index 32e21ddf3..203669137 100644 --- a/package.json +++ b/package.json @@ -124,7 +124,7 @@ "nyc": "^15.0.0", "postcss-cli": "^7.1.0", "prettier": "^1.19.1", - "rimraf": "^3.0.1", + "rimraf": "^3.0.2", "rollup": "^1.31.1", "rollup-plugin-copy": "^3.3.0", "rollup-plugin-terser": "^5.2.0", From f4d0351f9006ee22298a36d0953e33db326db30b Mon Sep 17 00:00:00 2001 From: "dependabot-preview[bot]" <27856297+dependabot-preview[bot]@users.noreply.github.com> Date: Sat, 15 Feb 2020 15:21:27 +0000 Subject: [PATCH 23/28] Bump less from 3.10.3 to 3.11.1 Bumps [less](https://github.com/less/less.js) from 3.10.3 to 3.11.1. - [Release notes](https://github.com/less/less.js/releases) - [Changelog](https://github.com/less/less.js/blob/master/CHANGELOG.md) - [Commits](https://github.com/less/less.js/compare/v3.10.3...v3.11.1) Signed-off-by: dependabot-preview[bot] --- npm-shrinkwrap.json | 70 ++++++++++++++++++++------------------------- package.json | 2 +- 2 files changed, 32 insertions(+), 40 deletions(-) diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json index 4d7dc8bd7..8f1131c13 100644 --- a/npm-shrinkwrap.json +++ b/npm-shrinkwrap.json @@ -2881,9 +2881,9 @@ "optional": true }, "aws4": { - "version": "1.8.0", - "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz", - "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==", + "version": "1.9.1", + "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.9.1.tgz", + "integrity": "sha512-wMHVg2EOHaMRxbzgFJ9gtjOOCrI80OHLG14rxi28XwOW8ux6IiEbRCGGGqCtdAIg4FQCbW20k9RsT4y3gJlFug==", "dev": true, "optional": true }, @@ -7337,9 +7337,9 @@ } }, "less": { - "version": "3.10.3", - "resolved": "https://registry.npmjs.org/less/-/less-3.10.3.tgz", - "integrity": "sha512-vz32vqfgmoxF1h3K4J+yKCtajH0PWmjkIFgbs5d78E/c/e+UQTnI+lWK+1eQRE95PXM2mC3rJlLSSP9VQHnaow==", + "version": "3.11.1", + "resolved": "https://registry.npmjs.org/less/-/less-3.11.1.tgz", + "integrity": "sha512-tlWX341RECuTOvoDIvtFqXsKj072hm3+9ymRBe76/mD6O5ZZecnlAOVDlWAleF2+aohFrxNidXhv2773f6kY7g==", "dev": true, "requires": { "clone": "^2.1.2", @@ -7350,7 +7350,8 @@ "mkdirp": "^0.5.0", "promise": "^7.1.1", "request": "^2.83.0", - "source-map": "~0.6.0" + "source-map": "~0.6.0", + "tslib": "^1.10.0" }, "dependencies": { "source-map": { @@ -8110,20 +8111,20 @@ "dev": true }, "mime-db": { - "version": "1.40.0", - "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.40.0.tgz", - "integrity": "sha512-jYdeOMPy9vnxEqFRRo6ZvTZ8d9oPb+k18PKoYNYUe2stVEBPPwsln/qWzdbmaIvnhZ9v2P+CuecK+fpUfsV2mA==", + "version": "1.43.0", + "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.43.0.tgz", + "integrity": "sha512-+5dsGEEovYbT8UY9yD7eE4XTc4UwJ1jBYlgaQQF38ENsKR3wj/8q8RFZrF9WIZpB2V1ArTVFUva8sAul1NzRzQ==", "dev": true, "optional": true }, "mime-types": { - "version": "2.1.24", - "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.24.tgz", - "integrity": "sha512-WaFHS3MCl5fapm3oLxU4eYDw77IQM2ACcxQ9RIxfaC3ooc6PFuBMGZZsYpvoXS5D5QTWPieo1jjLdAm3TBP3cQ==", + "version": "2.1.26", + "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.26.tgz", + "integrity": "sha512-01paPWYgLrkqAyrlDorC1uDwl2p3qZT7yl806vW7DvDoxwXi46jsjFbg+WdwotBIk6/MbEhO/dh5aZ5sNj/dWQ==", "dev": true, "optional": true, "requires": { - "mime-db": "1.40.0" + "mime-db": "1.43.0" } }, "mimic-fn": { @@ -9721,9 +9722,9 @@ "optional": true }, "psl": { - "version": "1.4.0", - "resolved": "https://registry.npmjs.org/psl/-/psl-1.4.0.tgz", - "integrity": "sha512-HZzqCGPecFLyoRj5HLfuDSKYTJkAfB5thKBIkRHtGjWwY7p1dAyveIbXIq4tO0KYfDF2tHqPUgY9SDnGm00uFw==", + "version": "1.7.0", + "resolved": "https://registry.npmjs.org/psl/-/psl-1.7.0.tgz", + "integrity": "sha512-5NsSEDv8zY70ScRnOTn7bK7eanl2MvFrOrS/R6x+dBt5g1ghnj9Zv90kO8GwT8gxcu2ANyFprnFYB85IogIJOQ==", "dev": true, "optional": true }, @@ -9993,9 +9994,9 @@ "dev": true }, "request": { - "version": "2.88.0", - "resolved": "https://registry.npmjs.org/request/-/request-2.88.0.tgz", - "integrity": "sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==", + "version": "2.88.2", + "resolved": "https://registry.npmjs.org/request/-/request-2.88.2.tgz", + "integrity": "sha512-MsvtOrfG9ZcrOwAW+Qi+F6HbD0CWXEh9ou77uOb7FM2WPhwT7smM833PzanhJLsgXjN89Ir6V2PczXNnMpwKhw==", "dev": true, "optional": true, "requires": { @@ -10006,7 +10007,7 @@ "extend": "~3.0.2", "forever-agent": "~0.6.1", "form-data": "~2.3.2", - "har-validator": "~5.1.0", + "har-validator": "~5.1.3", "http-signature": "~1.2.0", "is-typedarray": "~1.0.0", "isstream": "~0.1.2", @@ -10016,7 +10017,7 @@ "performance-now": "^2.1.0", "qs": "~6.5.2", "safe-buffer": "^5.1.2", - "tough-cookie": "~2.4.3", + "tough-cookie": "~2.5.0", "tunnel-agent": "^0.6.0", "uuid": "^3.3.2" }, @@ -11292,23 +11293,14 @@ } }, "tough-cookie": { - "version": "2.4.3", - "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz", - "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==", + "version": "2.5.0", + "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.5.0.tgz", + "integrity": "sha512-nlLsUzgm1kfLXSXfRZMc1KLAugd4hqJHDTvc2hDIwS3mZAfMEuMbc03SujMF+GEcpaX/qboeycw6iO8JwVv2+g==", "dev": true, "optional": true, "requires": { - "psl": "^1.1.24", - "punycode": "^1.4.1" - }, - "dependencies": { - "punycode": { - "version": "1.4.1", - "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz", - "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=", - "dev": true, - "optional": true - } + "psl": "^1.1.28", + "punycode": "^2.1.1" } }, "trim": { @@ -11562,9 +11554,9 @@ } }, "uuid": { - "version": "3.3.2", - "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz", - "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==", + "version": "3.4.0", + "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz", + "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==", "dev": true, "optional": true }, diff --git a/package.json b/package.json index 203669137..55d7be3fb 100644 --- a/package.json +++ b/package.json @@ -118,7 +118,7 @@ "http-server": "^0.12.1", "husky": "^4.2.1", "jsdoc": "^3.6.3", - "less": "^3.10.3", + "less": "^3.11.1", "lint-staged": "^10.0.7", "npm-run-all": "^4.1.5", "nyc": "^15.0.0", From c1aa55f53fb02ec4f56c6181137cb28c436154d5 Mon Sep 17 00:00:00 2001 From: "dependabot-preview[bot]" <27856297+dependabot-preview[bot]@users.noreply.github.com> Date: Sat, 15 Feb 2020 15:25:53 +0000 Subject: [PATCH 24/28] Bump husky from 4.2.1 to 4.2.3 Bumps [husky](https://github.com/typicode/husky) from 4.2.1 to 4.2.3. - [Release notes](https://github.com/typicode/husky/releases) - [Changelog](https://github.com/typicode/husky/blob/master/CHANGELOG.md) - [Commits](https://github.com/typicode/husky/compare/v4.2.1...v4.2.3) Signed-off-by: dependabot-preview[bot] --- npm-shrinkwrap.json | 12 ++++++------ package.json | 2 +- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json index 8f1131c13..1ec7f092b 100644 --- a/npm-shrinkwrap.json +++ b/npm-shrinkwrap.json @@ -3726,9 +3726,9 @@ "dev": true }, "compare-versions": { - "version": "3.5.1", - "resolved": "https://registry.npmjs.org/compare-versions/-/compare-versions-3.5.1.tgz", - "integrity": "sha512-9fGPIB7C6AyM18CJJBHt5EnCZDG3oiTJYy0NjfIAGjKpzv0tkxWko7TNQHF5ymqm7IH03tqmeuBxtvD+Izh6mg==", + "version": "3.6.0", + "resolved": "https://registry.npmjs.org/compare-versions/-/compare-versions-3.6.0.tgz", + "integrity": "sha512-W6Af2Iw1z4CB7q4uU4hv646dW9GQuBM+YpC0UvUCWSD8w90SJjp+ujJuXaEMtAXBtSqGfMPuFOVn4/+FlaqfBA==", "dev": true }, "component-emitter": { @@ -6295,9 +6295,9 @@ "dev": true }, "husky": { - "version": "4.2.1", - "resolved": "https://registry.npmjs.org/husky/-/husky-4.2.1.tgz", - "integrity": "sha512-Qa0lRreeIf4Tl92sSs42ER6qc3hzoyQPPorzOrFWfPEVbdi6LuvJEqWKPk905fOWIR76iBpp7ECZNIwk+a8xuQ==", + "version": "4.2.3", + "resolved": "https://registry.npmjs.org/husky/-/husky-4.2.3.tgz", + "integrity": "sha512-VxTsSTRwYveKXN4SaH1/FefRJYCtx+wx04sSVcOpD7N2zjoHxa+cEJ07Qg5NmV3HAK+IRKOyNVpi2YBIVccIfQ==", "dev": true, "requires": { "chalk": "^3.0.0", diff --git a/package.json b/package.json index 55d7be3fb..4b092a54f 100644 --- a/package.json +++ b/package.json @@ -116,7 +116,7 @@ "eslint-plugin-prettier": "^3.1.2", "eslint-watch": "^6.0.1", "http-server": "^0.12.1", - "husky": "^4.2.1", + "husky": "^4.2.3", "jsdoc": "^3.6.3", "less": "^3.11.1", "lint-staged": "^10.0.7", From bbd8981497bc12951021ac1485669daca38e579b Mon Sep 17 00:00:00 2001 From: Arnaud CETOUTE Date: Fri, 21 Feb 2020 10:13:29 +0100 Subject: [PATCH 25/28] chore(update): update from upstream --- README.md | 42 +++++++++++++++++++++++++++++++++++------ package.json | 13 ++----------- src/core/definitions.js | 18 +++++++++--------- 3 files changed, 47 insertions(+), 26 deletions(-) diff --git a/README.md b/README.md index 701e766fa..6e898e204 100644 --- a/README.md +++ b/README.md @@ -1,3 +1,33 @@ +⚠️ Fork to fix IE 11 + Edge issue ⚠️ +Based on https://github.com/arnog/mathlive/issues/195 + +Global changes : + +```diff +// src/core/definitions.js + ++// Edit : https://github.com/arnog/mathlive/issues/195#issuecomment-493741744 +-const LETTER = +- typeof navigator !== 'undefined' && /firefox|edge/i.test(navigator.userAgent) ? +- /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/ : +- new RegExp("\\p{Letter}", 'u'); + ++const LETTER = ++ // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ? ++ /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // : ++ // new RegExp("\\p{Letter}", 'u'); + +-const LETTER_AND_DIGITS = +- typeof navigator !== 'undefined' && /firefox|edge/i.test(navigator.userAgent) ? +- /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/ : +- new RegExp("[0-9\\p{Letter}]", 'u'); + ++const LETTER_AND_DIGITS = ++ // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ? ++ /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // : ++ // new RegExp("[0-9\\p{Letter}]", 'u'); +``` + math live [![Maintenance](https://img.shields.io/maintenance/yes/2020.svg)]() @@ -24,20 +54,20 @@ Try it at [mathlive.io](https://mathlive.io) diff --git a/package.json b/package.json index 4b092a54f..a0c7611e0 100644 --- a/package.json +++ b/package.json @@ -1,5 +1,5 @@ { - "name": "mathlive", + "name": "@lls/mathlive", "version": "0.34.0", "description": "Render and edit beautifully typeset math", "license": "MIT", @@ -9,7 +9,7 @@ }, "repository": { "type": "git", - "url": "https://github.com/arnog/mathlive.git" + "url": "https://github.com/lelivrescolaire/mathlive.git" }, "keywords": [ "math", @@ -93,15 +93,6 @@ "maintained node versions", "not dead" ], - "author": "Arno Gourdol ", - "contributors": [ - "Louis Larpin (lilfaf.github.io)", - "Neil Soiffer (https://github.com/NSoiffer)", - "Jason Boxman (https://github.com/jboxman)", - "Synergy Codes (https://www.synergycodes.com/)", - "Rafał Piekarski (https://github.com/rpdiss)" - ], - "bugs": "https://github.com/arnog/mathlive/issues/", "devDependencies": { "@babel/cli": "^7.8.4", "@babel/core": "^7.8.4", diff --git a/src/core/definitions.js b/src/core/definitions.js index b358ca1ad..5f0d789d7 100644 --- a/src/core/definitions.js +++ b/src/core/definitions.js @@ -934,7 +934,7 @@ category = 'Environments'; 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 @@ -3624,17 +3624,17 @@ const COMMAND_MODE_CHARACTERS = /[a-zA-Z0-9!@*()-=+{}[\]\\';:?/.,~<>`|'$%#&^_" ] // 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 const LETTER = - typeof navigator !== 'undefined' && - /firefox|edge/i.test(navigator.userAgent) - ? /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/ - : new RegExp('\\p{Letter}', 'u'); + // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ? + /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // : + // new RegExp("\\p{Letter}", 'u'); const LETTER_AND_DIGITS = - typeof navigator !== 'undefined' && - /firefox|edge/i.test(navigator.userAgent) - ? /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/ - : new RegExp('[0-9\\p{Letter}]', 'u'); + // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ? + /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // : + // new RegExp("[0-9\\p{Letter}]", 'u'); export default { matchCodepoint, From 4aef812be3da52f0b5da293ef1b398c3c37f9b15 Mon Sep 17 00:00:00 2001 From: Arnaud CETOUTE Date: Fri, 21 Feb 2020 10:26:32 +0100 Subject: [PATCH 26/28] fix(build): merge --- .gitignore | 1 + dist/mathlive.js | 2 +- dist/mathlive.mjs | 2 +- dist/src/core/definitions.js | 18 +++++++++--------- npm-shrinkwrap.json | 2 +- rollup.config.js | 1 + 6 files changed, 14 insertions(+), 12 deletions(-) diff --git a/.gitignore b/.gitignore index 301ac7bdc..9b9cfc694 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d=Vt(t,[i,o,c,s]);if(!this.index)return this.bind(t,Nt([r,d],"sqrt"));const p=t.clone({mathstyle:M.SCRIPTSCRIPT}),m=Kt(Qt(p,this.index),e.adjustTo(M.SCRIPTSCRIPT)),u=Math.max(r.height,d.height),f=Math.max(r.depth,d.depth),g=Vt(t,[m],"shift",-.6*(u-f));return this.bind(t,Nt([Kt(g,"root"),r,d],"sqrt"))}decomposeAccent(t){const e=t.mathstyle;let i=Qt(t.cramp(),this.body);(this.superscript||this.subscript)&&(i=this.attachSupsub(t,Nt(i),"mord"));let s=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(s=N.skew(i));const a=Math.min(N.height(i),e.metrics.xHeight),o=N.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Kt(Kt(o),"accent-body"+n);return r=Vt(t,[i,-a,r]),r.children[1].setLeft(2*s),Nt(r,"accent")}decomposeLine(t){const e=t.mathstyle,i=Qt(t.cramp(),this.body),s=h.defaultRuleThickness/e.sizeMultiplier,a=Kt(null,t.mathstyle.adjustTo(M.TEXT)+" "+this.position+"-line");let o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=Vt(t,[i,3*s,a,s]);else{const e=Kt(i);o=Vt(t,[s,a,3*s,e],"top",N.height(e))}return Nt(o,this.position)}decomposeOverunder(t){const e=Qt(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?Kt(Qt(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?Kt(Qt(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return Yt(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Kt(Qt(t,this.body),"inner");return Nt([e,Kt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Nt("","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===M.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=N.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op")),i.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=N.makeOp(Qt(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===M.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Nt(Qt(t,this.body)),i=Kt();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:h.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + 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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",(N.height(e)+N.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+='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=Kt("​","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),i.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.containsCaret&&(Array.isArray(i)?(i[0].classes=(i[0].classes||"")+" ML__contains-caret",i[i.length-1].classes=(i[i.length-1].classes||"")+" ML__contains-caret"):i.classes=(i.classes||"")+" ML__contains-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=Qt(t.sup(),this.superscript);a=Kt(e,s.adjustTo(s.sup()))}if(this.subscript){const e=Qt(t.sub(),this.subscript);o=Kt(e,s.adjustTo(s.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=N.height(e)-s.metrics.supDrop,l=N.depth(e)+s.metrics.subDrop),n=s===M.DISPLAY?s.metrics.sup1:s.cramped?s.metrics.sup3:s.metrics.sup2;const c=M.TEXT.sizeMultiplier*s.sizeMultiplier,d=.5/h.ptPerEm/c;let p=null;if(o&&a){r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),l=Math.max(l,s.metrics.sub2);const i=h.defaultRuleThickness;if(r-N.depth(a)-(N.height(o)-l)<4*i){l=4*i-(r-a.depth)+N.height(o);const t=.8*s.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Vt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,N.height(o)-.8*s.metrics.xHeight),p=Vt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),p=Vt(t,[a],"shift",-r),p.children[0].setRight(d));const m=Kt(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(i,[e,m])}attachLimits(t,e,i,s){const a=this.superscript?Kt(Qt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Kt(Qt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Yt(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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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=N.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 Xt(t){const e=Kt("​","arraycolsep");return e.setWidth(t,"em"),e}function Jt(t,e,i,s){const a=[];for(const o of e){const e=Kt(Qt(t,s));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-i)}return Vt(t,a,"individualShift")}function Yt(t,e,i,s,a,o,n){if(!a&&!o)return e;e=Kt(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+i;c=Vt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-s),c.children[2].setLeft(s)}else if(o&&!a){const a=N.height(e)-i;c=Vt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-s)}else if(!o&&a){const o=N.depth(e)+i;c=Vt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(s)}return N.makeSpanOfType(n,c,"op-limits")}function Qt(t,e){function i(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function s(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Gt[t.size]/Gt[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var te={MathAtom:Zt,decompose:Qt,makeRoot:function(t,e){const i=new Zt(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new Zt("","first")),i},GREEK_REGEX:Ut};const ee={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},ie={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 se=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=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1=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)},ae=function(t){let e=t.toUpperCase();for(const t in ie)if(ie[t]===e){e=t;break}for(const t in ee)if(ee[t]===e){e=t;break}return e},oe=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ne=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const re=te.MathAtom;class le{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=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 se(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);let e;return this.skipWhitespace(),e=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"),e}scanSkip(){const t=this.scanDimen();return 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=_e(e.array);i>=0;i--)t(Ce(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},we.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const 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},we.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=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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=_e(i.array);let s=e-1;for(;!t&&s0)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)}},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=Se(this);i=this.extent+t;const a=e+i;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)},we.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=Se(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),n<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&&n0&&(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)}},we.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)},we.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=Se(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"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 this.suppressChangeNotifications=i,!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},we.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},we.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},we.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];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=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},we.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=At.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;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),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},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new te.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},we.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))},we.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++},we.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.row0){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 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0===t.deltaX?t.detail:-t.deltaX;isFinite(e)||(e=t.wheelDelta/10),this.field.scroll({top:0,left:this.field.scrollLeft-5*e})},{passive:!1}),this.virtualKeyboardToggleDOMNode=this.element.children[a++].children[1],this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode,{default:"toggleVirtualKeyboard",alt:"toggleVirtualKeyboardAlt",shift:"toggleVirtualKeyboardShift"}),this.ariaLiveText=this.element.children[a].children[0],this.accessibleNode=this.element.children[a++].children[1],this.popover=bs("mathlive-popover-panel","ML__popover"),this.keystrokeCaption=bs("mathlive-keystroke-caption-panel","ML__keystroke-caption"),this.keystrokeCaptionVisible=!1,this.virtualKeyboardVisible=!1,this.keystrokeBuffer="",this.keystrokeBufferStates=[],this.keystrokeBufferResetTimer=null,this.suggestionIndex=0,this.mode=e.defaultMode||"math",this.smartModeSuppressed=!1,this.style={},this.blurred=!0,gs(this.element,"focus",this),gs(this.element,"blur",this),gs(this.textarea,"cut",this),gs(this.textarea,"copy",this),gs(this.textarea,"paste",this),He.delegateKeyboardEvents(this.textarea,{container:this.element,allowDeadKey:()=>"text"===this.mode,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)}),window.PointerEvent?gs(this.field,"pointerdown",this):gs(this.field,"touchstart:active 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>ks(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,ys(this.textarea,"cut",this),ys(this.textarea,"copy",this),ys(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,xs(this.popover),xs(this.keystrokeCaption),xs(this.virtualKeyboard),xs(document.getElementById("mathlive-alternate-keys-panel")),ys(this.element,"pointerdown",this),ys(this.element,"touchstart:active mousedown",this),ys(this.element,"focus",this),ys(this.element,"blur",this),ys(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let i;return Array.from(e.children).forEach((function(e){i=i||t(e)})),i}(this.field);if(t){const 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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()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1;const r=this.field.querySelector(".ML__mathlive").getBoundingClientRect();if(i=d>r.right?[{relation:"body",offset:this.mathlist.root.body.length-1}]:this._pathFromPoint(d,p,{bias:0}),i){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),i=me.clone(this.mathlist.path),i[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||Ss>2?(n(t),3!==t.detail&&3!==Ss||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(gs(e.field,"pointermove",h),gs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(gs(window,"blur",n),t.touches?(gs(t.target,"touchmove",h),gs(t.target,"touchend",n)):(gs(window,"mousemove",h),gs(window,"mouseup",n))),2!==t.detail&&2!==Ss||(a=!0,this.mathlist.selectGroup_()))}}else ws=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 As(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+=As(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,i)}_onFocus(){this.config.readOnly||this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),Je.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())}_onBlur(){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))}_onResize(){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"),Je.updatePopoverPosition(this)}toggleKeystrokeCaption_(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")}_showKeystroke(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=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(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),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(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),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){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))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()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(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(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=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=ve.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=At.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;iks(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,i=!1;for(;t&&!i;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,i=!0),e+=1,t=this.mathlist.ancestor(e)}const i=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=N.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=N.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=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=hi[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&hi[a]?hi[a]:a&&di[a]?di[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=di[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=te.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const i=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=he.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.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),Je.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const i=this;let s,a,o,n,r;"object"==typeof 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o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=Wt(t,[i,3*s,a,s]);else{const e=$t(i);o=Wt(t,[s,a,3*s,e],"top",N.height(e))}return Rt(o,this.position)}decomposeOverunder(t){const e=Jt(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?$t(Jt(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?$t(Jt(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return Xt(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=$t(Jt(t,this.body),"inner");return Rt([e,$t(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Rt("","rule");let s=this.shift&&!isNaN(this.shift)?this.shift:0;s/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return i.setStyle("border-right-width",a,"em"),i.setStyle("border-top-width",o,"em"),i.setStyle("margin-top",-(o-s),"em"),i.setStyle("border-color",t.color),i.width=a,i.height=o+s,i.depth=-s,i}decomposeOp(t){const e=t.mathstyle;let i,s=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(s=!0);let a=0,o=0;if(this.symbol){const n=s?"Size2-Regular":"Size1-Regular";i=N.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op")),i.type="mop",a=(i.height-i.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=i.italic,this.bind(t,i)}else Array.isArray(this.body)?(i=N.makeOp(Jt(t,this.body)),this.bind(t,i)):i=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const s=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===s||"auto"===s&&e.size===M.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Rt(Jt(t,this.body)),i=$t();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:h.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + 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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",(N.height(e)+N.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+='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=$t("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?i=this.decomposeBox(t):"enclose"===this.type?i=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(i=this.makeSpan(t,this.body),i.classes="",this.error&&(i.classes+=" ML__error"),this.suggestion&&(i.classes+=" ML__suggestion")):"placeholder"===this.type?i=this.makeSpan(t,"⬚"):"first"===this.type&&(i=this.makeSpan(t,"​"));if(!i)return i;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(i)?i[i.length-1].caret=this.caret:i.caret=this.caret),this.containsCaret&&(Array.isArray(i)?(i[0].classes=(i[0].classes||"")+" ML__contains-caret",i[i.length-1].classes=(i[i.length-1].classes||"")+" ML__contains-caret"):i.classes=(i.classes||"")+" 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t=.8*s.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Wt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,N.height(o)-.8*s.metrics.xHeight),p=Wt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),p=Wt(t,[a],"shift",-r),p.children[0].setRight(d));const m=$t(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(i,[e,m])}attachLimits(t,e,i,s){const a=this.superscript?$t(Jt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?$t(Jt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Xt(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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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=N.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 Gt(t){const e=$t("​","arraycolsep");return e.setWidth(t,"em"),e}function 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o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Ut[t.size]/Ut[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var Yt={MathAtom:jt,decompose:Jt,makeRoot:function(t,e){const i=new jt(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new jt("","first")),i},GREEK_REGEX:Ht};const Qt={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},te={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 ee=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=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1=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)},ie=function(t){let e=t.toUpperCase();for(const t in te)if(te[t]===e){e=t;break}for(const t in Qt)if(Qt[t]===e){e=t;break}return e},se=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ae=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const oe=Yt.MathAtom;class ne{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=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 ee(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},ke.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=Me(e.array);i>=0;i--)t(Ae(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},ke.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},ke.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const 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},ke.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=Me(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ae(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=Me(i.array);let s=e-1;for(;!t&&s0)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)}},ke.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=Se(this.parent().array,i);e=_e(this.parent().array,e,-1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},ke.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=Se(this.parent().array,i);e=_e(this.parent().array,e,1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},ke.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=ve(this);i=this.extent+t;const a=e+i;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)},ke.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=ve(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),n<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&&n0&&(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)}},ke.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)},ke.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=ve(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"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 this.suppressChangeNotifications=i,!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},ke.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},ke.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},ke.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];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=Fe(t.numer),t.denom=Fe(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Fe(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Fe(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Fe(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Fe(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Fe(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Fe(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Me(t.array);e>=0;e--)this.simplifyParen(Ae(t.array,e))})}},ke.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=De(t,{...this.config,format:"ASCIIMath"}),o=le.parseTokens(n(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)wt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new Yt.MathAtom("command","command",e))}else""===t?o=[new Yt.MathAtom("command","command","\\")]:(t=De(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=le.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=le.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=le.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},ke.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=wt.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;if(Object.keys(wt.RIGHT_DELIM).forEach(e=>{t===wt.RIGHT_DELIM[e]&&(a=e)}),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},ke.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},ke.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new Yt.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},ke.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))},ke.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++},ke.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.row0){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"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)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,i.slice(e+1,e+2)),i.splice(e+1,1));else if("numer"===this.relation()){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: numerator")}else this.move(1),this.delete(-1)}else{const 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof 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e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const i=this.element.getBoundingClientRect();e.style.left=i.left+"px",e.style.top=i.top-64+"px",e.innerHTML=""+(xe.stringify(t)||t)+""+e.innerHTML,e.style.visibility="visible",setTimeout((function(){e.childNodes.length>0&&e.removeChild(e.childNodes[e.childNodes.length-1]),0===e.childNodes.length&&(e.style.visibility="hidden")}),3e3)}}$perform(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=wt.suggest(t);0===e.length?Ze.hidePopover(this):Ze.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).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$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=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"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=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let i=0,s=!1;for(this.mathlist.contentWillChange();!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let i=0,s=!1;for(;!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}}getTextBeforeAnchor_(){let t="",e=0,i=!1;for(;!i;){const s=this.mathlist.sibling(e);i=!(s&&("text"===s.mode&&!s.type||"math"===s.mode&&/mord|textord|mpunct/.test(s.type))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(i));const s=this.getTextBeforeAnchor_()+i;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(i))return!0;if(/[\^_]/.test(i))return/(^|\s)[a-zA-Z][^_]$/.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)$/i.test(s))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let i,s,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ne.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const s=this.mode;i?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==s&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(i||a||(a=xe.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!i){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.$perform(a)||i)&&i){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ne.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=Ne.charToEvent(e);if(!this.$keystroke(Ne.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=wt.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Ze.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Ze.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;ibs(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,i=!1;for(;t&&!i;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,i=!0),e+=1,t=this.mathlist.ancestor(e)}const i=Yt.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=N.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=N.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=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+Yt.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=Yt.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=Yt.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=li[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&li[a]?li[a]:a&&ci[a]?ci[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=ci[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=Yt.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Ze.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Ze.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(wt.commandAllowed(t,e)){const i=le.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=le.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);if(0===e.length)Ze.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),Ze.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const i=this;let s,a,o,n,r;"object"==typeof 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d=Vt(t,[i,o,c,s]);if(!this.index)return this.bind(t,Nt([r,d],"sqrt"));const p=t.clone({mathstyle:M.SCRIPTSCRIPT}),m=Kt(Qt(p,this.index),e.adjustTo(M.SCRIPTSCRIPT)),u=Math.max(r.height,d.height),f=Math.max(r.depth,d.depth),g=Vt(t,[m],"shift",-.6*(u-f));return this.bind(t,Nt([Kt(g,"root"),r,d],"sqrt"))}decomposeAccent(t){const e=t.mathstyle;let i=Qt(t.cramp(),this.body);(this.superscript||this.subscript)&&(i=this.attachSupsub(t,Nt(i),"mord"));let s=0;Array.isArray(this.body)&&1===this.body.length&&this.body[0].isCharacterBox()&&(s=N.skew(i));const a=Math.min(N.height(i),e.metrics.xHeight),o=N.makeSymbol("Main-Regular",this.accent,"math");o.italic=0;const n="⃗"===this.accent?" accent-vec":"";let r=Kt(Kt(o),"accent-body"+n);return r=Vt(t,[i,-a,r]),r.children[1].setLeft(2*s),Nt(r,"accent")}decomposeLine(t){const e=t.mathstyle,i=Qt(t.cramp(),this.body),s=h.defaultRuleThickness/e.sizeMultiplier,a=Kt(null,t.mathstyle.adjustTo(M.TEXT)+" "+this.position+"-line");let o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=Vt(t,[i,3*s,a,s]);else{const e=Kt(i);o=Vt(t,[s,a,3*s,e],"top",N.height(e))}return Nt(o,this.position)}decomposeOverunder(t){const e=Qt(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?Kt(Qt(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?Kt(Qt(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return Yt(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=Kt(Qt(t,this.body),"inner");return Nt([e,Kt(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Nt("","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===M.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=N.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op")),i.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=N.makeOp(Qt(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===M.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Nt(Qt(t,this.body)),i=Kt();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:h.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + 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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",(N.height(e)+N.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+='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=Kt("​","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),i.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.containsCaret&&(Array.isArray(i)?(i[0].classes=(i[0].classes||"")+" ML__contains-caret",i[i.length-1].classes=(i[i.length-1].classes||"")+" ML__contains-caret"):i.classes=(i.classes||"")+" ML__contains-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=Qt(t.sup(),this.superscript);a=Kt(e,s.adjustTo(s.sup()))}if(this.subscript){const e=Qt(t.sub(),this.subscript);o=Kt(e,s.adjustTo(s.sub()))}let n,r=0,l=0;this.isCharacterBox()||(r=N.height(e)-s.metrics.supDrop,l=N.depth(e)+s.metrics.subDrop),n=s===M.DISPLAY?s.metrics.sup1:s.cramped?s.metrics.sup3:s.metrics.sup2;const c=M.TEXT.sizeMultiplier*s.sizeMultiplier,d=.5/h.ptPerEm/c;let p=null;if(o&&a){r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),l=Math.max(l,s.metrics.sub2);const i=h.defaultRuleThickness;if(r-N.depth(a)-(N.height(o)-l)<4*i){l=4*i-(r-a.depth)+N.height(o);const t=.8*s.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Vt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,N.height(o)-.8*s.metrics.xHeight),p=Vt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),p=Vt(t,[a],"shift",-r),p.children[0].setRight(d));const m=Kt(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(i,[e,m])}attachLimits(t,e,i,s){const a=this.superscript?Kt(Qt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?Kt(Qt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Yt(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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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=N.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 Xt(t){const e=Kt("​","arraycolsep");return e.setWidth(t,"em"),e}function Jt(t,e,i,s){const a=[];for(const o of e){const e=Kt(Qt(t,s));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-i)}return Vt(t,a,"individualShift")}function Yt(t,e,i,s,a,o,n){if(!a&&!o)return e;e=Kt(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+i;c=Vt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-s),c.children[2].setLeft(s)}else if(o&&!a){const a=N.height(e)-i;c=Vt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-s)}else if(!o&&a){const o=N.depth(e)+i;c=Vt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(s)}return N.makeSpanOfType(n,c,"op-limits")}function Qt(t,e){function i(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function s(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Gt[t.size]/Gt[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var te={MathAtom:Zt,decompose:Qt,makeRoot:function(t,e){const i=new Zt(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new Zt("","first")),i},GREEK_REGEX:Ut};const ee={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},ie={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 se=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=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1=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)},ae=function(t){let e=t.toUpperCase();for(const t in ie)if(ie[t]===e){e=t;break}for(const t in ee)if(ee[t]===e){e=t;break}return e},oe=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ne=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const re=te.MathAtom;class le{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=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 se(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);let e;return this.skipWhitespace(),e=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"),e}scanSkip(){const t=this.scanDimen();return 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},we.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=_e(e.array);i>=0;i--)t(Ce(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},we.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},we.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},we.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=_e(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ce(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=_e(i.array);let s=e-1;for(;!t&&s0)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)}},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,-1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},we.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=Me(this.parent().array,i);e=Le(this.parent().array,e,1),e&&Ce(e)?(this.path[this.path.length-1].relation="cell"+Ae(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},we.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=Se(this);i=this.extent+t;const a=e+i;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)},we.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=Se(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),n<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&&n0&&(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)}},we.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)},we.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=Se(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"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 this.suppressChangeNotifications=i,!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},we.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},we.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},we.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];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=ze(t.numer),t.denom=ze(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=ze(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=ze(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=ze(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=ze(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=ze(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=ze(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=_e(t.array);e>=0;e--)this.simplifyParen(Ce(t.array,e))})}},we.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=Ee(t,{...this.config,format:"ASCIIMath"}),o=he.parseTokens(n(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)At.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new te.MathAtom("command","command",e))}else""===t?o=[new te.MathAtom("command","command","\\")]:(t=Ee(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=he.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=he.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=he.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},we.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=At.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;if(Object.keys(At.RIGHT_DELIM).forEach(e=>{t===At.RIGHT_DELIM[e]&&(a=e)}),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},we.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},we.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new te.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},we.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))},we.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++},we.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.row0){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 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0===t.deltaX?t.detail:-t.deltaX;isFinite(e)||(e=t.wheelDelta/10),this.field.scroll({top:0,left:this.field.scrollLeft-5*e})},{passive:!1}),this.virtualKeyboardToggleDOMNode=this.element.children[a++].children[1],this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode,{default:"toggleVirtualKeyboard",alt:"toggleVirtualKeyboardAlt",shift:"toggleVirtualKeyboardShift"}),this.ariaLiveText=this.element.children[a].children[0],this.accessibleNode=this.element.children[a++].children[1],this.popover=bs("mathlive-popover-panel","ML__popover"),this.keystrokeCaption=bs("mathlive-keystroke-caption-panel","ML__keystroke-caption"),this.keystrokeCaptionVisible=!1,this.virtualKeyboardVisible=!1,this.keystrokeBuffer="",this.keystrokeBufferStates=[],this.keystrokeBufferResetTimer=null,this.suggestionIndex=0,this.mode=e.defaultMode||"math",this.smartModeSuppressed=!1,this.style={},this.blurred=!0,gs(this.element,"focus",this),gs(this.element,"blur",this),gs(this.textarea,"cut",this),gs(this.textarea,"copy",this),gs(this.textarea,"paste",this),He.delegateKeyboardEvents(this.textarea,{container:this.element,allowDeadKey:()=>"text"===this.mode,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)}),window.PointerEvent?gs(this.field,"pointerdown",this):gs(this.field,"touchstart:active 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const i=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=i}}(this.mathlist),i.length>0&&this.$latex(i),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(t){switch(t.type){case"focus":this._onFocus(t);break;case"blur":this._onBlur(t);break;case"touchstart":case"mousedown":case"pointerdown":this._onPointerDown(t);break;case"resize":this._resizeTimer&&window.cancelAnimationFrame(this._resizeTimer),this._resizeTimer=window.requestAnimationFrame(()=>ks(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete this.accessibleNode,delete this.ariaLiveText,delete this.field,ys(this.textarea,"cut",this),ys(this.textarea,"copy",this),ys(this.textarea,"paste",this),this.textarea.remove(),delete this.textarea,this.virtualKeyboardToggleDOMNode.remove(),delete this.virtualKeyboardToggleDOMNode,xs(this.popover),xs(this.keystrokeCaption),xs(this.virtualKeyboard),xs(document.getElementById("mathlive-alternate-keys-panel")),ys(this.element,"pointerdown",this),ys(this.element,"touchstart:active mousedown",this),ys(this.element,"focus",this),ys(this.element,"blur",this),ys(window,"resize",this),delete this.element}_resetKeystrokeBuffer(){this.keystrokeBuffer="",this.keystrokeBufferStates=[],clearTimeout(this.keystrokeBufferResetTimer)}_getCaretPosition(){const t=function t(e){if(e.classList.contains("ML__caret")||e.classList.contains("ML__text-caret")||e.classList.contains("ML__command-caret"))return e;let i;return Array.from(e.children).forEach((function(e){i=i||t(e)})),i}(this.field);if(t){const 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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()c.right,r=s=u.left&&d<=u.right&&p>=u.top&&p<=u.bottom){this.$hasFocus()||(o=!0,this.textarea.focus&&this.textarea.focus()),this._resetKeystrokeBuffer(),this.smartModeSuppressed=!1;const r=this.field.querySelector(".ML__mathlive").getBoundingClientRect();if(i=d>r.right?[{relation:"body",offset:this.mathlist.root.body.length-1}]:this._pathFromPoint(d,p,{bias:0}),i){let r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,i),i=me.clone(this.mathlist.path),i[i.length-1].offset-=1):this.mathlist.setPath(i,0),o=!0,this.style={},3===t.detail||Ss>2?(n(t),3!==t.detail&&3!==Ss||this.mathlist.selectAll_()):s||(s=!0,window.PointerEvent?(gs(e.field,"pointermove",h),gs(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(gs(window,"blur",n),t.touches?(gs(t.target,"touchmove",h),gs(t.target,"touchend",n)):(gs(window,"mousemove",h),gs(window,"mouseup",n))),2!==t.detail&&2!==Ss||(a=!0,this.mathlist.selectGroup_()))}}else ws=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Je.hidePopover(this),this.mathlist.removeCommandString())}Je.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(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 As(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+=As(this,"",r):0!==a.offset&&(o+=n?"end of "+n:"unknown"),o}_announce(t,e,i){"function"==typeof this.config.onAnnounce&&this.config.onAnnounce(this,t,e,i)}_onFocus(){this.config.readOnly||this.blurred&&(this.blurred=!1,this.textarea.focus&&this.textarea.focus(),"onfocus"===this.config.virtualKeyboardMode&&this.showVirtualKeyboard_(),Je.updatePopoverPosition(this),this.config.onFocus&&this.config.onFocus(this),this._requestUpdate())}_onBlur(){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))}_onResize(){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"),Je.updatePopoverPosition(this)}toggleKeystrokeCaption_(){this.keystrokeCaptionVisible=!this.keystrokeCaptionVisible,this.keystrokeCaption.innerHTML="",this.keystrokeCaptionVisible||(this.keystrokeCaption.style.visibility="hidden")}_showKeystroke(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=""+(ve.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,i=!1,s=[],a=!1;if(Array.isArray(t)?(e=t[0],s=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...s),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);0===e.length?Je.hidePopover(this):Je.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,i=!0}else"function"==typeof this[e]&&(a=this[e](...s),i=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(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),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(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),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){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))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()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(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(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=He.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=ve.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(He.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=He.charToEvent(e);if(!this.$keystroke(He.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=At.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Je.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Je.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;iks(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,i=!1;for(;t&&!i;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,i=!0),e+=1,t=this.mathlist.ancestor(e)}const i=te.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=N.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=N.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=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+te.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=te.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=te.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=te.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=hi[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&hi[a]?hi[a]:a&&di[a]?di[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=di[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=te.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Je.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Je.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(At.commandAllowed(t,e)){const i=he.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=he.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);if(0===e.length)Je.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),Je.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=At.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const i=this;let s,a,o,n,r;"object"==typeof 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o;if(a.height=i,a.maxFontSize=1,"overline"===this.position)o=Wt(t,[s,3*i,a,i]);else{const e=$t(s);o=Wt(t,[i,a,3*i,e],"top",N.height(e))}return Rt(o,this.position)}decomposeOverunder(t){const e=Jt(t,this.body),s=t.clone({mathstyle:"scriptstyle"}),i=this.overscript?$t(Jt(s,this.overscript),t.mathstyle.adjustTo(s.mathstyle)):null,a=this.underscript?$t(Jt(s,this.underscript),t.mathstyle.adjustTo(s.mathstyle)):null;return Xt(t,e,0,0,i,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=$t(Jt(t,this.body),"inner");return Rt([e,$t(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,s=Rt("","rule");let i=this.shift&&!isNaN(this.shift)?this.shift:0;i/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return s.setStyle("border-right-width",a,"em"),s.setStyle("border-top-width",o,"em"),s.setStyle("margin-top",-(o-i),"em"),s.setStyle("border-color",t.color),s.width=a,s.height=o+i,s.depth=-i,s}decomposeOp(t){const e=t.mathstyle;let s,i=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(i=!0);let a=0,o=0;if(this.symbol){const n=i?"Size2-Regular":"Size1-Regular";s=N.makeSymbol(n,this.body,"op-symbol "+(i?"large-op":"small-op")),s.type="mop",a=(s.height-s.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=s.italic,this.bind(t,s)}else Array.isArray(this.body)?(s=N.makeOp(Jt(t,this.body)),this.bind(t,s)):s=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const i=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===i||"auto"===i&&e.size===M.DISPLAY.size?this.attachLimits(t,s,a,o):this.attachSupsub(t,s,"mop")}return this.symbol&&s.setTop(a),s}decomposeBox(t){const e=Rt(Jt(t,this.body)),s=$t();s.setStyle("position","absolute");const i="number"==typeof this.padding?this.padding:h.fboxsep;s.setStyle("height",e.height+e.depth+2*i,"em"),0!==i?s.setStyle("width","calc(100% + 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i="";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",(N.height(e)+N.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&&(i+='0?s.setWidth(this.width):s.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";s=$t("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?s=this.decomposeBox(t):"enclose"===this.type?s=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(s=this.makeSpan(t,this.body),s.classes="",this.error&&(s.classes+=" ML__error"),this.suggestion&&(s.classes+=" ML__suggestion")):"placeholder"===this.type?s=this.makeSpan(t,"⬚"):"first"===this.type&&(s=this.makeSpan(t,"​"));if(!s)return s;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(s)?s[s.length-1].caret=this.caret:s.caret=this.caret),this.containsCaret&&(Array.isArray(s)?(s[0].classes=(s[0].classes||"")+" ML__contains-caret",s[s.length-1].classes=(s[s.length-1].classes||"")+" ML__contains-caret"):s.classes=(s.classes||"")+" 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t=.8*i.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Wt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,i.metrics.sub1,N.height(o)-.8*i.metrics.xHeight),p=Wt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),p=Wt(t,[a],"shift",-r),p.children[0].setRight(d));const m=$t(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(s,[e,m])}attachLimits(t,e,s,i){const a=this.superscript?$t(Jt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?$t(Jt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Xt(t,e,s,i,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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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 s="textord"===this.type?"mord":this.type,i=N.makeSpanOfType(s,e),a=this.getStyle();i.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+o):t.parentSize!==t.size&&(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+t.size),i.maxFontSize=Math.max(i.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(i.classes+=" ML__text"),t.mathstyle.isTight()&&(i.isTight=!0),"math"!==this.mode&&(i.italic=0),i.setRight(i.italic),"number"==typeof t.opacity&&i.setStyle("opacity",t.opacity),this.bind(t,i),this.caret&&(this.superscript||this.subscript||(i.caret=this.caret,t.mathstyle.isTight()&&(i.isTight=!0))),i}}function Gt(t){const e=$t("​","arraycolsep");return e.setWidth(t,"em"),e}function Zt(t,e,s,i){const a=[];for(const o of e){const e=$t(Jt(t,i));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-s)}return Wt(t,a,"individualShift")}function Xt(t,e,s,i,a,o,n){if(!a&&!o)return e;e=$t(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+s;c=Wt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-i),c.children[2].setLeft(i)}else if(o&&!a){const a=N.height(e)-s;c=Wt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-i)}else if(!o&&a){const o=N.depth(e)+s;c=Wt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(i)}return N.makeSpanOfType(n,c,"op-limits")}function Jt(t,e){function s(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function i(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Ut[t.size]/Ut[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var Yt={MathAtom:jt,decompose:Jt,makeRoot:function(t,e){const s=new jt(t=t||"math","root",e||[]);return 0!==s.body.length&&"first"===s.body[0].type||s.body.unshift(new jt("","first")),s},GREEK_REGEX:Ht};const Qt={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},te={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 ee=function(t){const e=t.toLowerCase().split("!");let s,i,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=0&&(o=(1-l)*o+l*s,n=(1-l)*n+l*i,r=(1-l)*r+l*a,l=-1),t+1=0&&(o=l*o+(1-l)*s,n=l*n+(1-l)*i,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)},se=function(t){let e=t.toUpperCase();for(const t in te)if(te[t]===e){e=t;break}for(const t in Qt)if(Qt[t]===e){e=t;break}return e},ie=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ae=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const oe=Yt.MathAtom;class ne{constructor(t,e,s){this.tokens=t,this.index=0,this.args=e,this.macros=s,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=t.length}const a=t.toUpperCase()===i.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 ee(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let 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t=s.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==s.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},ke.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let s=e.length-1;s>=0;s--)"command"===e[s].type?e.splice(s,1):t(e[s]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let s=Me(e.array);s>=0;s--)t(Ae(e.array,s))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},ke.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let s=this.startOffset();if("text"===t[s].mode)for(;s>=1&&"text"===t[s].mode;)e.unshift(t[s]),s--;else for(;s>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[s].type);)e.unshift(t[s]),s--;return e},ke.prototype.setSelection=function(t,e,s){t=t||0,e=e||0;const i=this.path[this.path.length-1].relation;s||(s=i);const a=this.parent();if(!a&&"body"!==s)return!1;const o=s.startsWith("cell");if(!o&&!a[s]||o&&!a.array)return!1;const n=s!==i;this.path[this.path.length-1].relation=s;const r=this.siblings().length;this.path[this.path.length-1].relation=i;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=s,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},ke.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 s=e[this.relation()];const i=this.parent();for(;s&&!i[s];)s=e[s];if(s)return void this.setSelection(0,0,s);if(this.parent().array){const t=Me(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ae(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 s=this.anchor();if(!s.captureSelection){let t;if(s.array){t="";const e=Me(s.array);let i=e-1;for(;!t&&i0)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)}},ke.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const s=this.relation();if("denom"===s)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=Se(this.parent().array,s);e=_e(this.parent().array,e,-1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},ke.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const s=this.relation();if("numer"===s)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=Se(this.parent().array,s);e=_e(this.parent().array,e,1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},ke.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,s=0;const i=ve(this);s=this.extent+t;const a=e+s;if(a<0&&0!==s){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",i);e=this.path[this.path.length-1].offset,s=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",i);this.isCollapsed()&&(e-=1),s-=1}this.setSelection(e,s),this._announce("move",i)},ke.prototype.skip=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=ve(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(s&&(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),n<0&&!s)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 s="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(s){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",i)}},ke.prototype.jump=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,i.length-1));const o=t<0?0:i.length-1;s?this.extend(o-a):this.move(o-a)},ke.prototype.jumpToMathFieldBoundary=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const i=ve(this),a=[{relation:"body",offset:this.path[0].offset}];let o;s?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(i,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"])',s=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let i=s.indexOf(document.activeElement)+t;i<0&&(i=s.length-1),i>=s.length&&(i=0),s[i].focus()}return this.suppressChangeNotifications=s,!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",i),this.selectionDidChange(),this.suppressChangeNotifications=s,!0},ke.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e=i.mode),s+=1,i=this.ancestor(s);return e},ke.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e={color:i.color,backgroundColor:i.backgroundColor,fontFamily:i.fontFamily,fontShape:i.fontShape,fontSeries:i.fontSeries,fontSize:i.fontSize}),s+=1,i=this.ancestor(s);return e},ke.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 s=0,i=0,a=0;for(let o=0;t[e].body[o];o++)"genfrac"===t[e].body[o].type&&(s++,i=o),"first"!==t[e].body[o].type&&a++;0===a&&1===s&&(t[e]=t[e].body[i])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=Fe(t.numer),t.denom=Fe(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Fe(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Fe(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Fe(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Fe(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Fe(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Fe(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Me(t.array);e>=0;e--)this.simplifyParen(Ae(t.array,e))})}},ke.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const s=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const i=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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=De(t,{...this.config,format:"ASCIIMath"}),o=le.parseTokens(n(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)wt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new Yt.MathAtom("command","command",e))}else""===t?o=[new Yt.MathAtom("command","command","\\")]:(t=De(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=le.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=le.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=le.parseTokens(n(t),"text",r,e.macros,!1));!function t(e,s){e&&s&&(Array.isArray(e)?e.forEach(e=>t(e,s)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(s),t(e.body,s),t(e.numer,s),t(e.denom,s),t(e.index,s),t(e.overscript,s),t(e.underscript,s),t(e.subscript,s),t(e.superscript,s))))}(o,e.style);const h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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=i,"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=s},ke.prototype._insertSmartFence=function(t,e){const s=this.parent();if("leftright"===s.type&&"|"!==s.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 i=wt.RIGHT_DELIM[t];if(i&&("leftright"!==s.type||"|"!==s.leftDelim)){let s="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;s=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",s+=a?"?":i;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(s,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;if(Object.keys(wt.RIGHT_DELIM).forEach(e=>{t===wt.RIGHT_DELIM[e]&&(a=e)}),a){if(s&&"leftright"===s.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),s.rightDelim=t,this.move(1),this.contentDidChange(),!0;const i=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==i[a].type||"?"!==i[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),i[a].rightDelim=t,i[a].body=i[a].body.concat(i.slice(a+1,this.endOffset()+1)),i.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(s&&"leftright"===s.type&&"?"===s.rightDelim){this.contentWillChange(),s.rightDelim=t;const e=i.slice(this.endOffset()+1);return i.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()===i.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},ke.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let s=e.start;for(;s=0;e--)t[e].suggestion&&t.splice(e,1)},ke.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const s=[],i=t.substr(e);for(const t of i){const e=new Yt.MathAtom("command","command",t);e.suggestion=!0,s.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(s))},ke.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))},ke.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++},ke.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.row0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(s+=1)}i.row+=1}return s}(t,e.col)){!function(t,e){let s=0;for(;s"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!==s.length-1)/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,s.slice(e+1,e+2)),s.splice(e+1,1));else if("numer"===this.relation()){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: numerator")}else this.move(1),this.delete(-1)}else{const 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0===t.deltaX?t.detail:-t.deltaX;isFinite(e)||(e=t.wheelDelta/10),this.field.scroll({top:0,left:this.field.scrollLeft-5*e})},{passive:!1}),this.virtualKeyboardToggleDOMNode=this.element.children[a++].children[1],this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode,{default:"toggleVirtualKeyboard",alt:"toggleVirtualKeyboardAlt",shift:"toggleVirtualKeyboardShift"}),this.ariaLiveText=this.element.children[a].children[0],this.accessibleNode=this.element.children[a++].children[1],this.popover=gi("mathlive-popover-panel","ML__popover"),this.keystrokeCaption=gi("mathlive-keystroke-caption-panel","ML__keystroke-caption"),this.keystrokeCaptionVisible=!1,this.virtualKeyboardVisible=!1,this.keystrokeBuffer="",this.keystrokeBufferStates=[],this.keystrokeBufferResetTimer=null,this.suggestionIndex=0,this.mode=e.defaultMode||"math",this.smartModeSuppressed=!1,this.style={},this.blurred=!0,ui(this.element,"focus",this),ui(this.element,"blur",this),ui(this.textarea,"cut",this),ui(this.textarea,"copy",this),ui(this.textarea,"paste",this),Ne.delegateKeyboardEvents(this.textarea,{container:this.element,allowDeadKey:()=>"text"===this.mode,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)}),window.PointerEvent?ui(this.field,"pointerdown",this):ui(this.field,"touchstart:active 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const s=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=s}}(this.mathlist),s.length>0&&this.$latex(s),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(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(()=>bi(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete 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r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,s),s=de.clone(this.mathlist.path),s[s.length-1].offset-=1):this.mathlist.setPath(s,0),o=!0,this.style={},3===t.detail||vi>2?(n(t),3!==t.detail&&3!==vi||this.mathlist.selectAll_()):i||(i=!0,window.PointerEvent?(ui(e.field,"pointermove",h),ui(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(ui(window,"blur",n),t.touches?(ui(t.target,"touchmove",h),ui(t.target,"touchend",n)):(ui(window,"mousemove",h),ui(window,"mouseup",n))),2!==t.detail&&2!==vi||(a=!0,this.mathlist.selectGroup_()))}}else ki=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Ze.hidePopover(this),this.mathlist.removeCommandString())}Ze.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(t){function 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e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const s=this.element.getBoundingClientRect();e.style.left=s.left+"px",e.style.top=s.top-64+"px",e.innerHTML=""+(xe.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,s=!1,i=[],a=!1;if(Array.isArray(t)?(e=t[0],i=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...i),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);0===e.length?Ze.hidePopover(this):Ze.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,s=!0}else"function"==typeof this[e]&&(a=this[e](...i),s=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),s}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let s=0,i=!1;for(this.mathlist.contentWillChange();!i;){const a=this.mathlist.sibling(s);i=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),i||(a.applyStyle({mode:"text"}),a.latex=a.body),s-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let s=0,i=!1;for(;!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),i||a.applyStyle({mode:"math",type:"mord"}),s-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){let t="",e=0,s=!1;for(;!s;){const i=this.mathlist.sibling(e);s=!(i&&("text"===i.mode&&!i.type||"math"===i.mode&&/mord|textord|mpunct/.test(i.type))),s||(t=i.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(s));const i=this.getTextBeforeAnchor_()+s;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(s))return!0;if(/[\^_]/.test(s))return/(^|\s)[a-zA-Z][^_]$/.test(i)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[s];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(i))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(s))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(i))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(i)){this.convertLastAtomsToMath_(1);const t=this.mathlist.sibling(0);return t.body="⋅",t.autoFontFamily="cmr",t.latex="\\cdot",!0}if(/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(i))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(s))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(i)&&!/(dxd|abc|xyz|uvw)$/.test(i))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(i))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(i)&&!/(αβγ)$/.test(i))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(s))return!0}return!1}_onKeystroke(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 s,i,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ne.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!s&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const i=this.mode;s?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==i&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(s||a||(a=xe.selectorForKeystroke(this.mode,t)),!s&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!s){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.$perform(a)||s)&&s){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(s)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ne.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const s=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[i],{...this.config,suppressChangeNotifications:!0}),this.mode=s}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(s,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),s.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),s=Ne.charToEvent(e);if(!this.$keystroke(Ne.keyboardEventToString(s),s))return}let s="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=i(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),i=wt.suggest(e+t);a=i.length>1,0===i.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Ze.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),i[0].match!==e+t&&this.mathlist.insertSuggestion(i[0].match,-i[0].match.length+e.length+1),s=i[0].match)}else if("math"===this.mode){const s={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(s){if("moveToSuperscript"===s){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===s&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$perform(s)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Ze.showPopoverWithLatex(this,s,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let s=0;sbi(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,s=!1;for(;t&&!s;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,s=!0),e+=1,t=this.mathlist.ancestor(e)}const s=Yt.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),i=N.makeSpan(s,"ML__base");i.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",i.height,"em");const o=[a];if(0!==i.depth){const t=N.makeSpan("","ML__strut--bottom");t.setStyle("height",i.height+i.depth,"em"),t.setStyle("vertical-align",-i.depth,"em"),o.push(t)}o.push(i);const n=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+Yt.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(t,e){let s="";if("latex"===(e=e||"latex")||"latex-expanded"===e)s=t.toLatex("latex-expanded"===e);else if("mathML"===e)s=t.toMathML(this.config);else if("spoken"===e)s=Yt.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",s=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const i=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),s=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=i,this.config.generateID=a}else if("json"===e){const e=Yt.toAST(t,this.config);s=JSON.stringify(e)}else"ASCIIMath"===e&&(s=function t(e,s){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 i=0;for(s='"';e[i]&&"text"===e[i].mode;)s+=e[i].body,i++;s+='"'+t(e.slice(i))}else{let i=0;for(;e[i]&&"math"===e[i].mode;)s+=t(e[i]),i++;s+=t(e.slice(i))}return s.trim()}if("text"===e.mode)return'"'+e.body+'"';let i="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":i=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(i+="(",i+=t(e.numer),i+=")/(",i+=t(e.denom),i+=")"):(i+="("+t(e.numer)+"),",i+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?i+="root("+t(e.index)+")("+t(e.body)+")":i+="sqrt("+t(e.body)+")";break;case"leftright":i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",i+=t(e.body),i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":i=ls[a]||a||("string"==typeof e.body?e.body:""),"\\"===i[0]&&(i+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?i=String.fromCharCode(parseInt("0x"+o[1])):i.length>0&&"\\"===i.charAt(0)&&(i="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":i=a&&ls[a]?ls[a]:a&&cs[a]?cs[a]:e.body;break;case"mopen":case"mclose":i+=e.body;break;case"mpunct":i=cs[a]||a;break;case"mop":"​"!==e.body&&(i="",i+="\\operatorname"===a?t(e.body):e.body||a,i+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":i=" "}if(e.subscript){i+="_";const s=t(e.subscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}if(e.superscript){i+="^";const s=t(e.superscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}return i}(t,this.config));return s}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const s=Yt.makeRoot("math",e);return this.formatMathlist(s,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!0:s.subscript&&(i=!1),e+=1,s=this.mathlist.ancestor(e);return i?t:0}_subscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!1:s.subscript&&(i=!0),e+=1,s=this.mathlist.ancestor(e);return i?t:0}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const s=this._getSelectionBounds();s&&(t={x:s.right+e.left-this.field.scrollLeft,y:s.top+e.top-this.field.scrollTop})}if(t){const s=t.x-window.scrollX;se.right&&this.field.scroll({top:0,left:s-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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 s=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=s)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1}switchMode_(t,e,s){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Ze.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,s&&this.$insert(s,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Ze.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(wt.commandAllowed(t,e)){const s=le.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(s)}else{const s=le.parseTokens(n(e),t,null,this.config.macros);s?this.mathlist.spliceCommandStringAroundInsertionPoint(s):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);if(0===e.length)Ze.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const s=this.suggestionIndex%e.length,i=t.length-e[s].match.length;0!==i&&this.mathlist.insertSuggestion(e[s].match,i),Ze.showPopoverWithLatex(this,e[s].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const s=this;let i,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)),ui(t,"mousedown touchstart:passive",(function(e){if("mousedown"!==e.type||1===e.buttons){e.stopPropagation(),e.preventDefault(),t.classList.add("pressed"),i=Date.now(),"touchstart"===e.type&&(o=e.changedTouches[0].identifier);const n=t.getAttribute("data-"+s.config.namespace+"command-pressed");n&&s.$perform(JSON.parse(n));const l=t.getAttribute("data-"+s.config.namespace+"command-pressAndHoldStart");l&&(a=t,r&&clearTimeout(r),r=window.setTimeout((function(){t.classList.contains("pressed")&&s.$perform(JSON.parse(l))}),300))}})),ui(t,"mouseleave touchcancel",(function(){t.classList.remove("pressed")})),ui(t,"touchmove:passive",(function(t){t.preventDefault();for(let e=0;e=7?s.style.width="286px":4===e.length||2===e.length?s.style.width="146px":1===e.length?s.style.width="86px":s.style.width="146px",s.style.height="auto";let i="";for(const t of e)i+="";i="
      "+i+"
    ",s.innerHTML=i,rs.makeKeycap(this,s.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-s.clientHeight<0&&(s.style.width="auto",e.length<=6?s.style.height="56px":e.length<=12?s.style.height="108px":s.style.height="205px");const t=(a.top-s.clientHeight+5).toString()+"px",i=Math.max(0,Math.min(window.innerWidth-s.offsetWidth,(a.left+a.right-s.offsetWidth)/2))+"px";s.style.transform="translate("+i+","+t+")",s.classList.add("is-visible")}return!1}hideAlternateKeys_(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",yi(t)),!1}performAlternateKeys_(t){return this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(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 s=!1;for(let i=0;i=1){s=[];for(let t=1;t<=i;t++)s.push(e[t])}break}case"right":{const e=t.mathlist.siblings(),i=t.mathlist.endOffset()+1;if(i<=e.length-1){s=[];for(let t=i;t<=e.length-1;t++)s.push(e[t])}break}case"start":case"end":break;case"group":s=t.mathlist.siblings();break;case"parent":{const e=t.mathlist.parent();e&&"root"!==e.type&&(s=t.mathlist.parent());break}}return s}(this,t);if(null===s)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 i={...this.config};(e.withHighlighting||"amazon"===i.speechEngine)&&(i.textToSpeechMarkup=window.sre&&"sre"===i.textToSpeechRules?"ssml_step":"ssml",e.withHighlighting&&(i.generateID=!0));const a=Yt.toSpeakableText(s,i);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,i),!1}}let ki,vi=0;function wi(t,e,s){const i=Object.assign({},t.config);return i.textToSpeechMarkup="",i.textToSpeechRulesOptions=i.textToSpeechRulesOptions||{},i.textToSpeechRulesOptions.markup="none",e+Yt.toSpeakableText(s,i)}function Si(t,e,s,i){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>{})),t._resetKeystrokeBuffer()):"delete"===e?a=wi(t,"deleted: ",i):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(s):"replacement"===e?a=wi(t,"",t.mathlist.sibling(0)):"line"===e?(a=wi(t,"",t.mathlist.root),t.accessibleNode.innerHTML=''+Yt.toMathML(t.mathlist.root,t.config)+"",t.textarea.setAttribute("aria-label","after: "+a)):a=i?wi(t,e+" ",i):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}xi.prototype.undo_=xi.prototype.undo,xi.prototype.redo_=xi.prototype.redo,xi.prototype.scrollIntoView_=xi.prototype.scrollIntoView,xi.prototype.scrollToStart_=xi.prototype.scrollToStart,xi.prototype.scrollToEnd_=xi.prototype.scrollToEnd,xi.prototype.insert_=xi.prototype.$insert;var Ai={isValidMathfield:bi,MathField:xi};function Mi(t,e,s){let i=s,a=0;const o=t.length;for(;i0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(r=n.indexOf(e,c),-1===r){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(r=Mi(s,n,c+e.length),-1===r){h=!0;break}a.push({type:"math",data:n.slice(c+e.length,r),rawData:n.slice(c,r+s.length),mathstyle:i}),c=r+s.length}l=!l}c"+e.renderToMathML(t,e)+""}catch(e){s.textContent=t}return s.className="sr-only",s}(t,s)),/\bspeakable-text\b/i.test(s.renderAccessibleContent)&&s.renderToSpeakableText){const i=document.createElement("span");i.innerHTML=s.renderToSpeakableText(t,s),i.className="sr-only",e.appendChild(i)}return e.appendChild(a),e}return a}function Li(t,e){let s=null;if(e.TeX.processEnvironments&&/^\s*\\begin/.test(t))s=document.createDocumentFragment(),s.appendChild(Ti(t,void 0,e,!0));else{const i=_i(t,e.TeX.delimiters);if(1===i.length&&"text"===i[0].type)return null;s=document.createDocumentFragment();for(let t=0;t{})}}))}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Pi(t,e,s){if(!window)return;if(!s&&window.mathlive&&(s=window.mathlive.config),"amazon"!==(s=s||{}).speechEngine)return void(s.handleSpeak&&s.handleSpeak(e));if(!window.AWS)return;const i=new window.AWS.Polly({apiVersion:"2016-06-10"}),a={OutputFormat:"json",VoiceId:s.speechEngineVoice||"Joanna",Text:e,TextType:"ssml",SpeechMarkTypes:["ssml"]};window.mathlive=window.mathlive||{},window.mathlive.readAloudElement=t;const o=s.onReadAloudStatus||window.mathlive.onReadAloudStatus;i.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=[],i.synthesizeSpeech(a,(function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),s=new Blob([t.buffer],{type:"audio/mpeg"}),i=URL.createObjectURL(s);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 s of window.mathlive.readAloudMarks)s.time0&&Array.from(e.children).forEach(e=>{t(e,s)})):(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=i,o&&o(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}}))}}))}function Bi(t){let e=t;if("string"==typeof t&&(e=document.getElementById(t),!e))throw Error(`The element with ID "${t}" could not be found.`);return e}function Oi(t,e){Di&&((e=e||{}).renderToMarkup=e.renderToMarkup||zi,e.renderToMathML=e.renderToMathML||Ei,e.renderToSpeakableText=e.renderToSpeakableText||qi,e.macros=e.macros||wt.MACROS,Di.renderMathInElement(Bi(t),e))}function $i(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}const Ri={latexToMarkup:zi,latexToMathML:Ei,latexToSpeakableText:qi,latexToAST:function(t,e){if(!Yt.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,wt.MACROS);const s=le.parseTokens(n(t),"math",null,e.macros);return Yt.toAST(s,e)},astToLatex:function(t,e){return hi(t,e)},makeMathField:function(t,e){if(!Ai)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Ii,e.handleReadAloud=e.handleReadAloud||Pi,new Ai.MathField(Bi(t),e)},renderMathInDocument:function(t){Oi(document.body,t)},renderMathInElement:Oi,revertToOriginalContent:function(t,e){(t=(t=Bi(t)).children[1])instanceof Ai.MathField?t.revertToOriginalContent():($i(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=Bi(t)).children[1])instanceof Ai.MathField?t.originalContent:($i(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Pi,readAloudStatus:function(){return window?(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio?window.mathlive.readAloudAudio.paused?"paused":window.mathlive.readAloudAudio.ended?"ready":"playing":"ready"):"unavailable"},pauseReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"paused"),window.mathlive.readAloudAudio.pause()))},resumeReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()))},playReadAloud:function(t,e){if(window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio)){let s=0;if(window.mathlive.readAloudFinalToken=null,t){window.mathlive.readAloudMarks=window.mathlive.readAloudMarks||[];for(const e of window.mathlive.readAloudMarks)e.value===t&&(s=e.time/1e3);let i=window.mathlive.readAloudTokens.indexOf(t);i>=0&&(i+=e,i`|'$%#&^_" ] // 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 const LETTER = - typeof navigator !== 'undefined' && - /firefox|edge/i.test(navigator.userAgent) - ? /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/ - : new RegExp('\\p{Letter}', 'u'); + // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ? + /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // : + // new RegExp("\\p{Letter}", 'u'); const LETTER_AND_DIGITS = - typeof navigator !== 'undefined' && - /firefox|edge/i.test(navigator.userAgent) - ? /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/ - : new RegExp('[0-9\\p{Letter}]', 'u'); + // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ? + /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // : + // new RegExp("[0-9\\p{Letter}]", 'u'); export default { matchCodepoint, diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json index 1ec7f092b..33cee2f52 100644 --- a/npm-shrinkwrap.json +++ b/npm-shrinkwrap.json @@ -1,5 +1,5 @@ { - "name": "mathlive", + "name": "@lls/mathlive", "version": "0.34.0", "lockfileVersion": 1, "requires": true, diff --git a/rollup.config.js b/rollup.config.js index 793e215ca..0a7a1dc7d 100644 --- a/rollup.config.js +++ b/rollup.config.js @@ -15,6 +15,7 @@ export default [ warnings: true, passes: 2, }, + safari10: true }), copy({ targets: [ From fc950b2859d301f8a5fe572275aa305a4c227420 Mon Sep 17 00:00:00 2001 From: Arnaud CETOUTE Date: Fri, 21 Feb 2020 10:32:29 +0100 Subject: [PATCH 27/28] fix(build): remove dist --- dist/mathlive.core.css | 1 - dist/mathlive.js | 1 - dist/mathlive.mjs | 1 - dist/src/core/definitions.js | 3701 ---------------------------------- 4 files changed, 3704 deletions(-) delete mode 100644 dist/mathlive.core.css delete mode 100644 dist/mathlive.js delete mode 100644 dist/mathlive.mjs delete mode 100644 dist/src/core/definitions.js diff --git a/dist/mathlive.core.css b/dist/mathlive.core.css deleted file mode 100644 index 0f3f2a4ec..000000000 --- a/dist/mathlive.core.css +++ /dev/null @@ -1 +0,0 @@ -.ML__mathlive{line-height:0;direction:ltr;text-align:left;text-indent:0;text-rendering:auto;font-style:normal;font-size-adjust:none;letter-spacing:normal;word-wrap:normal;word-spacing:normal;white-space:nowrap;display:inline-block;text-shadow:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;width:-webkit-min-content;width:-moz-min-content;width:min-content;transform:translateZ(0)}.ML__base{display:inline-block;position:relative;cursor:text}.ML__strut,.ML__strut--bottom{display:inline-block;min-height:1em}.ML__caret:after{content:"";border:none;border-radius:2px;border-right:2px solid var(--caret);margin-right:-2px;position:relative;left:-1px;-webkit-animation:ML__caret-blink 1.05s step-end infinite forwards;animation:ML__caret-blink 1.05s step-end infinite forwards}.ML__text-caret:after{content:"";border:none;border-radius:1px;border-right:1px solid var(--caret);margin-right:-1px;position:relative;left:0;-webkit-animation:ML__caret-blink 1.05s step-end infinite forwards;animation:ML__caret-blink 1.05s step-end infinite forwards}.ML__command-caret:after{content:"_";border:none;margin-right:-1ex;position:relative;color:var(--caret);-webkit-animation:ML__caret-blink 1.05s step-end infinite forwards;animation:ML__caret-blink 1.05s step-end infinite forwards}.ML__text{line-height:1;white-space:pre}.ML__focused .ML__text{background:hsla(var(--hue),40%,50%,.1)}@-webkit-keyframes ML__caret-blink{0%,to{opacity:1}50%{opacity:0}}@keyframes ML__caret-blink{0%,to{opacity:1}50%{opacity:0}}.ML__textarea__textarea{transform:scale(0);resize:none;position:absolute;clip:rect(0 0 0 0);width:1px;height:1px;font-size:16px}.ML__fieldcontainer{display:flex;flex-flow:row;justify-content:space-between;align-items:flex-end;min-height:39px;touch-action:none;width:100%;--hue:212;--highlight:hsl(var(--hue),97%,85%);--caret:hsl(var(--hue),40%,49%);--highlight-inactive:#ccc;--primary:hsl(var(--hue),40%,50%);--secondary:hsl(var(--hue),19%,26%);--on-secondary:hsl(var(--hue),19%,26%)}@media (prefers-color-scheme:dark){body:not([theme=light]) .ML__fieldcontainer{--highlight:hsl(var(--hue),40%,49%);--highlight-inactive:hsl(var(--hue),10%,35%);--caret:hsl(var(--hue),97%,85%);--secondary:hsl(var(--hue),25%,35%);--on-secondary:#fafafa}}body[theme=dark] .ML__fieldcontainer{--highlight:hsl(var(--hue),40%,49%);--highlight-inactive:hsl(var(--hue),10%,35%);--caret:hsl(var(--hue),97%,85%);--secondary:hsl(var(--hue),25%,35%);--on-secondary:#fafafa}.ML__fieldcontainer:focus{outline:2px solid 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o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=Wt(t,[i,3*s,a,s]);else{const e=$t(i);o=Wt(t,[s,a,3*s,e],"top",N.height(e))}return Rt(o,this.position)}decomposeOverunder(t){const e=Jt(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?$t(Jt(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?$t(Jt(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return Xt(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=$t(Jt(t,this.body),"inner");return Rt([e,$t(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Rt("","rule");let s=this.shift&&!isNaN(this.shift)?this.shift:0;s/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return i.setStyle("border-right-width",a,"em"),i.setStyle("border-top-width",o,"em"),i.setStyle("margin-top",-(o-s),"em"),i.setStyle("border-color",t.color),i.width=a,i.height=o+s,i.depth=-s,i}decomposeOp(t){const e=t.mathstyle;let i,s=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(s=!0);let a=0,o=0;if(this.symbol){const n=s?"Size2-Regular":"Size1-Regular";i=N.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op")),i.type="mop",a=(i.height-i.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=i.italic,this.bind(t,i)}else Array.isArray(this.body)?(i=N.makeOp(Jt(t,this.body)),this.bind(t,i)):i=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const s=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===s||"auto"===s&&e.size===M.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Rt(Jt(t,this.body)),i=$t();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:h.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + 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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",(N.height(e)+N.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+='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=$t("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?i=this.decomposeBox(t):"enclose"===this.type?i=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(i=this.makeSpan(t,this.body),i.classes="",this.error&&(i.classes+=" ML__error"),this.suggestion&&(i.classes+=" ML__suggestion")):"placeholder"===this.type?i=this.makeSpan(t,"⬚"):"first"===this.type&&(i=this.makeSpan(t,"​"));if(!i)return i;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(i)?i[i.length-1].caret=this.caret:i.caret=this.caret),this.containsCaret&&(Array.isArray(i)?(i[0].classes=(i[0].classes||"")+" ML__contains-caret",i[i.length-1].classes=(i[i.length-1].classes||"")+" ML__contains-caret"):i.classes=(i.classes||"")+" 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t=.8*s.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Wt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,N.height(o)-.8*s.metrics.xHeight),p=Wt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),p=Wt(t,[a],"shift",-r),p.children[0].setRight(d));const m=$t(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(i,[e,m])}attachLimits(t,e,i,s){const a=this.superscript?$t(Jt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?$t(Jt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Xt(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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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=N.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 Gt(t){const e=$t("​","arraycolsep");return e.setWidth(t,"em"),e}function 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o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Ut[t.size]/Ut[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var Yt={MathAtom:jt,decompose:Jt,makeRoot:function(t,e){const i=new jt(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new jt("","first")),i},GREEK_REGEX:Ht};const Qt={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},te={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 ee=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=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),t+1=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)},ie=function(t){let e=t.toUpperCase();for(const t in te)if(te[t]===e){e=t;break}for(const t in Qt)if(Qt[t]===e){e=t;break}return e},se=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ae=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const oe=Yt.MathAtom;class ne{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=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 ee(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},ke.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=Me(e.array);i>=0;i--)t(Ae(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},ke.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},ke.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const 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},ke.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=Me(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ae(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=Me(i.array);let s=e-1;for(;!t&&s0)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)}},ke.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=Se(this.parent().array,i);e=_e(this.parent().array,e,-1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},ke.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=Se(this.parent().array,i);e=_e(this.parent().array,e,1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},ke.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=ve(this);i=this.extent+t;const a=e+i;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)},ke.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=ve(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),n<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&&n0&&(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)}},ke.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)},ke.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=ve(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"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 this.suppressChangeNotifications=i,!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},ke.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},ke.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},ke.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];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=Fe(t.numer),t.denom=Fe(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Fe(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Fe(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Fe(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Fe(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Fe(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Fe(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Me(t.array);e>=0;e--)this.simplifyParen(Ae(t.array,e))})}},ke.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=De(t,{...this.config,format:"ASCIIMath"}),o=le.parseTokens(n(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)wt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new Yt.MathAtom("command","command",e))}else""===t?o=[new Yt.MathAtom("command","command","\\")]:(t=De(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=le.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=le.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=le.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},ke.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=wt.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;if(Object.keys(wt.RIGHT_DELIM).forEach(e=>{t===wt.RIGHT_DELIM[e]&&(a=e)}),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},ke.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},ke.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new Yt.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},ke.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))},ke.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++},ke.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.row0){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"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)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,i.slice(e+1,e+2)),i.splice(e+1,1));else if("numer"===this.relation()){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: numerator")}else this.move(1),this.delete(-1)}else{const 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof 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e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const i=this.element.getBoundingClientRect();e.style.left=i.left+"px",e.style.top=i.top-64+"px",e.innerHTML=""+(xe.stringify(t)||t)+""+e.innerHTML,e.style.visibility="visible",setTimeout((function(){e.childNodes.length>0&&e.removeChild(e.childNodes[e.childNodes.length-1]),0===e.childNodes.length&&(e.style.visibility="hidden")}),3e3)}}$perform(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=wt.suggest(t);0===e.length?Ze.hidePopover(this):Ze.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).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$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=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"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=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let i=0,s=!1;for(this.mathlist.contentWillChange();!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let i=0,s=!1;for(;!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}}getTextBeforeAnchor_(){let t="",e=0,i=!1;for(;!i;){const s=this.mathlist.sibling(e);i=!(s&&("text"===s.mode&&!s.type||"math"===s.mode&&/mord|textord|mpunct/.test(s.type))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(i));const s=this.getTextBeforeAnchor_()+i;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(i))return!0;if(/[\^_]/.test(i))return/(^|\s)[a-zA-Z][^_]$/.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)$/i.test(s))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let i,s,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ne.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const s=this.mode;i?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==s&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(i||a||(a=xe.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!i){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.$perform(a)||i)&&i){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ne.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=Ne.charToEvent(e);if(!this.$keystroke(Ne.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=wt.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Ze.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Ze.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;ibs(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,i=!1;for(;t&&!i;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,i=!0),e+=1,t=this.mathlist.ancestor(e)}const i=Yt.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=N.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=N.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=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+Yt.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=Yt.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=Yt.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=li[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&li[a]?li[a]:a&&ci[a]?ci[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=ci[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=Yt.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Ze.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Ze.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(wt.commandAllowed(t,e)){const i=le.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=le.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);if(0===e.length)Ze.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),Ze.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const i=this;let s,a,o,n,r;"object"==typeof 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o;if(a.height=i,a.maxFontSize=1,"overline"===this.position)o=Wt(t,[s,3*i,a,i]);else{const e=$t(s);o=Wt(t,[i,a,3*i,e],"top",N.height(e))}return Rt(o,this.position)}decomposeOverunder(t){const e=Jt(t,this.body),s=t.clone({mathstyle:"scriptstyle"}),i=this.overscript?$t(Jt(s,this.overscript),t.mathstyle.adjustTo(s.mathstyle)):null,a=this.underscript?$t(Jt(s,this.underscript),t.mathstyle.adjustTo(s.mathstyle)):null;return Xt(t,e,0,0,i,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=$t(Jt(t,this.body),"inner");return Rt([e,$t(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,s=Rt("","rule");let i=this.shift&&!isNaN(this.shift)?this.shift:0;i/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return s.setStyle("border-right-width",a,"em"),s.setStyle("border-top-width",o,"em"),s.setStyle("margin-top",-(o-i),"em"),s.setStyle("border-color",t.color),s.width=a,s.height=o+i,s.depth=-i,s}decomposeOp(t){const e=t.mathstyle;let s,i=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(i=!0);let a=0,o=0;if(this.symbol){const n=i?"Size2-Regular":"Size1-Regular";s=N.makeSymbol(n,this.body,"op-symbol "+(i?"large-op":"small-op")),s.type="mop",a=(s.height-s.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=s.italic,this.bind(t,s)}else Array.isArray(this.body)?(s=N.makeOp(Jt(t,this.body)),this.bind(t,s)):s=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const i=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===i||"auto"===i&&e.size===M.DISPLAY.size?this.attachLimits(t,s,a,o):this.attachSupsub(t,s,"mop")}return this.symbol&&s.setTop(a),s}decomposeBox(t){const e=Rt(Jt(t,this.body)),s=$t();s.setStyle("position","absolute");const i="number"==typeof this.padding?this.padding:h.fboxsep;s.setStyle("height",e.height+e.depth+2*i,"em"),0!==i?s.setStyle("width","calc(100% + 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i="";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",(N.height(e)+N.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&&(i+='0?s.setWidth(this.width):s.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";s=$t("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?s=this.decomposeBox(t):"enclose"===this.type?s=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(s=this.makeSpan(t,this.body),s.classes="",this.error&&(s.classes+=" ML__error"),this.suggestion&&(s.classes+=" ML__suggestion")):"placeholder"===this.type?s=this.makeSpan(t,"⬚"):"first"===this.type&&(s=this.makeSpan(t,"​"));if(!s)return s;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(s)?s[s.length-1].caret=this.caret:s.caret=this.caret),this.containsCaret&&(Array.isArray(s)?(s[0].classes=(s[0].classes||"")+" ML__contains-caret",s[s.length-1].classes=(s[s.length-1].classes||"")+" ML__contains-caret"):s.classes=(s.classes||"")+" 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t=.8*i.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Wt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,i.metrics.sub1,N.height(o)-.8*i.metrics.xHeight),p=Wt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),p=Wt(t,[a],"shift",-r),p.children[0].setRight(d));const m=$t(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(s,[e,m])}attachLimits(t,e,s,i){const a=this.superscript?$t(Jt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?$t(Jt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Xt(t,e,s,i,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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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 s="textord"===this.type?"mord":this.type,i=N.makeSpanOfType(s,e),a=this.getStyle();i.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+o):t.parentSize!==t.size&&(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+t.size),i.maxFontSize=Math.max(i.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(i.classes+=" ML__text"),t.mathstyle.isTight()&&(i.isTight=!0),"math"!==this.mode&&(i.italic=0),i.setRight(i.italic),"number"==typeof t.opacity&&i.setStyle("opacity",t.opacity),this.bind(t,i),this.caret&&(this.superscript||this.subscript||(i.caret=this.caret,t.mathstyle.isTight()&&(i.isTight=!0))),i}}function Gt(t){const e=$t("​","arraycolsep");return e.setWidth(t,"em"),e}function Zt(t,e,s,i){const a=[];for(const o of e){const e=$t(Jt(t,i));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-s)}return Wt(t,a,"individualShift")}function Xt(t,e,s,i,a,o,n){if(!a&&!o)return e;e=$t(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+s;c=Wt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-i),c.children[2].setLeft(i)}else if(o&&!a){const a=N.height(e)-s;c=Wt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-i)}else if(!o&&a){const o=N.depth(e)+s;c=Wt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(i)}return N.makeSpanOfType(n,c,"op-limits")}function Jt(t,e){function s(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function i(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Ut[t.size]/Ut[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var Yt={MathAtom:jt,decompose:Jt,makeRoot:function(t,e){const s=new jt(t=t||"math","root",e||[]);return 0!==s.body.length&&"first"===s.body[0].type||s.body.unshift(new jt("","first")),s},GREEK_REGEX:Ht};const Qt={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},te={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 ee=function(t){const e=t.toLowerCase().split("!");let s,i,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=0&&(o=(1-l)*o+l*s,n=(1-l)*n+l*i,r=(1-l)*r+l*a,l=-1),t+1=0&&(o=l*o+(1-l)*s,n=l*n+(1-l)*i,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)},se=function(t){let e=t.toUpperCase();for(const t in te)if(te[t]===e){e=t;break}for(const t in Qt)if(Qt[t]===e){e=t;break}return e},ie=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ae=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const oe=Yt.MathAtom;class ne{constructor(t,e,s){this.tokens=t,this.index=0,this.args=e,this.macros=s,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=t.length}const a=t.toUpperCase()===i.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 ee(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let 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t=s.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==s.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},ke.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let s=e.length-1;s>=0;s--)"command"===e[s].type?e.splice(s,1):t(e[s]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let s=Me(e.array);s>=0;s--)t(Ae(e.array,s))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},ke.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let s=this.startOffset();if("text"===t[s].mode)for(;s>=1&&"text"===t[s].mode;)e.unshift(t[s]),s--;else for(;s>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[s].type);)e.unshift(t[s]),s--;return e},ke.prototype.setSelection=function(t,e,s){t=t||0,e=e||0;const i=this.path[this.path.length-1].relation;s||(s=i);const a=this.parent();if(!a&&"body"!==s)return!1;const o=s.startsWith("cell");if(!o&&!a[s]||o&&!a.array)return!1;const n=s!==i;this.path[this.path.length-1].relation=s;const r=this.siblings().length;this.path[this.path.length-1].relation=i;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=s,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},ke.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 s=e[this.relation()];const i=this.parent();for(;s&&!i[s];)s=e[s];if(s)return void this.setSelection(0,0,s);if(this.parent().array){const t=Me(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ae(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 s=this.anchor();if(!s.captureSelection){let t;if(s.array){t="";const e=Me(s.array);let i=e-1;for(;!t&&i0)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)}},ke.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const s=this.relation();if("denom"===s)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=Se(this.parent().array,s);e=_e(this.parent().array,e,-1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},ke.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const s=this.relation();if("numer"===s)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=Se(this.parent().array,s);e=_e(this.parent().array,e,1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},ke.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,s=0;const i=ve(this);s=this.extent+t;const a=e+s;if(a<0&&0!==s){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",i);e=this.path[this.path.length-1].offset,s=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",i);this.isCollapsed()&&(e-=1),s-=1}this.setSelection(e,s),this._announce("move",i)},ke.prototype.skip=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=ve(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(s&&(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),n<0&&!s)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 s="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(s){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",i)}},ke.prototype.jump=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,i.length-1));const o=t<0?0:i.length-1;s?this.extend(o-a):this.move(o-a)},ke.prototype.jumpToMathFieldBoundary=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const i=ve(this),a=[{relation:"body",offset:this.path[0].offset}];let o;s?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(i,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"])',s=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let i=s.indexOf(document.activeElement)+t;i<0&&(i=s.length-1),i>=s.length&&(i=0),s[i].focus()}return this.suppressChangeNotifications=s,!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",i),this.selectionDidChange(),this.suppressChangeNotifications=s,!0},ke.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e=i.mode),s+=1,i=this.ancestor(s);return e},ke.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e={color:i.color,backgroundColor:i.backgroundColor,fontFamily:i.fontFamily,fontShape:i.fontShape,fontSeries:i.fontSeries,fontSize:i.fontSize}),s+=1,i=this.ancestor(s);return e},ke.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 s=0,i=0,a=0;for(let o=0;t[e].body[o];o++)"genfrac"===t[e].body[o].type&&(s++,i=o),"first"!==t[e].body[o].type&&a++;0===a&&1===s&&(t[e]=t[e].body[i])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=Fe(t.numer),t.denom=Fe(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Fe(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Fe(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Fe(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Fe(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Fe(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Fe(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Me(t.array);e>=0;e--)this.simplifyParen(Ae(t.array,e))})}},ke.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const s=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const i=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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=De(t,{...this.config,format:"ASCIIMath"}),o=le.parseTokens(n(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)wt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new Yt.MathAtom("command","command",e))}else""===t?o=[new Yt.MathAtom("command","command","\\")]:(t=De(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=le.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=le.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=le.parseTokens(n(t),"text",r,e.macros,!1));!function t(e,s){e&&s&&(Array.isArray(e)?e.forEach(e=>t(e,s)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(s),t(e.body,s),t(e.numer,s),t(e.denom,s),t(e.index,s),t(e.overscript,s),t(e.underscript,s),t(e.subscript,s),t(e.superscript,s))))}(o,e.style);const h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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=i,"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=s},ke.prototype._insertSmartFence=function(t,e){const s=this.parent();if("leftright"===s.type&&"|"!==s.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 i=wt.RIGHT_DELIM[t];if(i&&("leftright"!==s.type||"|"!==s.leftDelim)){let s="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;s=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",s+=a?"?":i;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(s,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;if(Object.keys(wt.RIGHT_DELIM).forEach(e=>{t===wt.RIGHT_DELIM[e]&&(a=e)}),a){if(s&&"leftright"===s.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),s.rightDelim=t,this.move(1),this.contentDidChange(),!0;const i=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==i[a].type||"?"!==i[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),i[a].rightDelim=t,i[a].body=i[a].body.concat(i.slice(a+1,this.endOffset()+1)),i.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(s&&"leftright"===s.type&&"?"===s.rightDelim){this.contentWillChange(),s.rightDelim=t;const e=i.slice(this.endOffset()+1);return i.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()===i.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},ke.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let s=e.start;for(;s=0;e--)t[e].suggestion&&t.splice(e,1)},ke.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const s=[],i=t.substr(e);for(const t of i){const e=new Yt.MathAtom("command","command",t);e.suggestion=!0,s.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(s))},ke.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))},ke.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++},ke.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.row0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(s+=1)}i.row+=1}return s}(t,e.col)){!function(t,e){let s=0;for(;s"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!==s.length-1)/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,s.slice(e+1,e+2)),s.splice(e+1,1));else if("numer"===this.relation()){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: numerator")}else this.move(1),this.delete(-1)}else{const 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0===t.deltaX?t.detail:-t.deltaX;isFinite(e)||(e=t.wheelDelta/10),this.field.scroll({top:0,left:this.field.scrollLeft-5*e})},{passive:!1}),this.virtualKeyboardToggleDOMNode=this.element.children[a++].children[1],this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode,{default:"toggleVirtualKeyboard",alt:"toggleVirtualKeyboardAlt",shift:"toggleVirtualKeyboardShift"}),this.ariaLiveText=this.element.children[a].children[0],this.accessibleNode=this.element.children[a++].children[1],this.popover=gi("mathlive-popover-panel","ML__popover"),this.keystrokeCaption=gi("mathlive-keystroke-caption-panel","ML__keystroke-caption"),this.keystrokeCaptionVisible=!1,this.virtualKeyboardVisible=!1,this.keystrokeBuffer="",this.keystrokeBufferStates=[],this.keystrokeBufferResetTimer=null,this.suggestionIndex=0,this.mode=e.defaultMode||"math",this.smartModeSuppressed=!1,this.style={},this.blurred=!0,ui(this.element,"focus",this),ui(this.element,"blur",this),ui(this.textarea,"cut",this),ui(this.textarea,"copy",this),ui(this.textarea,"paste",this),Ne.delegateKeyboardEvents(this.textarea,{container:this.element,allowDeadKey:()=>"text"===this.mode,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)}),window.PointerEvent?ui(this.field,"pointerdown",this):ui(this.field,"touchstart:active 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const s=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=s}}(this.mathlist),s.length>0&&this.$latex(s),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(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(()=>bi(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete 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r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,s),s=de.clone(this.mathlist.path),s[s.length-1].offset-=1):this.mathlist.setPath(s,0),o=!0,this.style={},3===t.detail||vi>2?(n(t),3!==t.detail&&3!==vi||this.mathlist.selectAll_()):i||(i=!0,window.PointerEvent?(ui(e.field,"pointermove",h),ui(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(ui(window,"blur",n),t.touches?(ui(t.target,"touchmove",h),ui(t.target,"touchend",n)):(ui(window,"mousemove",h),ui(window,"mouseup",n))),2!==t.detail&&2!==vi||(a=!0,this.mathlist.selectGroup_()))}}else ki=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Ze.hidePopover(this),this.mathlist.removeCommandString())}Ze.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(t){function 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e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const s=this.element.getBoundingClientRect();e.style.left=s.left+"px",e.style.top=s.top-64+"px",e.innerHTML=""+(xe.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,s=!1,i=[],a=!1;if(Array.isArray(t)?(e=t[0],i=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...i),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);0===e.length?Ze.hidePopover(this):Ze.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,s=!0}else"function"==typeof this[e]&&(a=this[e](...i),s=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),s}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let s=0,i=!1;for(this.mathlist.contentWillChange();!i;){const a=this.mathlist.sibling(s);i=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),i||(a.applyStyle({mode:"text"}),a.latex=a.body),s-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let s=0,i=!1;for(;!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),i||a.applyStyle({mode:"math",type:"mord"}),s-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){let t="",e=0,s=!1;for(;!s;){const i=this.mathlist.sibling(e);s=!(i&&("text"===i.mode&&!i.type||"math"===i.mode&&/mord|textord|mpunct/.test(i.type))),s||(t=i.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(s));const i=this.getTextBeforeAnchor_()+s;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(s))return!0;if(/[\^_]/.test(s))return/(^|\s)[a-zA-Z][^_]$/.test(i)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[s];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(i))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(s))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(i))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(i)){this.convertLastAtomsToMath_(1);const t=this.mathlist.sibling(0);return t.body="⋅",t.autoFontFamily="cmr",t.latex="\\cdot",!0}if(/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(i))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(s))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(i)&&!/(dxd|abc|xyz|uvw)$/.test(i))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(i))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(i)&&!/(αβγ)$/.test(i))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(s))return!0}return!1}_onKeystroke(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 s,i,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ne.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!s&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const i=this.mode;s?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==i&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(s||a||(a=xe.selectorForKeystroke(this.mode,t)),!s&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!s){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.$perform(a)||s)&&s){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(s)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ne.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const s=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[i],{...this.config,suppressChangeNotifications:!0}),this.mode=s}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(s,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),s.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),s=Ne.charToEvent(e);if(!this.$keystroke(Ne.keyboardEventToString(s),s))return}let s="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=i(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),i=wt.suggest(e+t);a=i.length>1,0===i.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Ze.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),i[0].match!==e+t&&this.mathlist.insertSuggestion(i[0].match,-i[0].match.length+e.length+1),s=i[0].match)}else if("math"===this.mode){const s={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(s){if("moveToSuperscript"===s){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===s&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$perform(s)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Ze.showPopoverWithLatex(this,s,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let s=0;sbi(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,s=!1;for(;t&&!s;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,s=!0),e+=1,t=this.mathlist.ancestor(e)}const s=Yt.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),i=N.makeSpan(s,"ML__base");i.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",i.height,"em");const o=[a];if(0!==i.depth){const t=N.makeSpan("","ML__strut--bottom");t.setStyle("height",i.height+i.depth,"em"),t.setStyle("vertical-align",-i.depth,"em"),o.push(t)}o.push(i);const n=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+Yt.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(t,e){let s="";if("latex"===(e=e||"latex")||"latex-expanded"===e)s=t.toLatex("latex-expanded"===e);else if("mathML"===e)s=t.toMathML(this.config);else if("spoken"===e)s=Yt.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",s=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const i=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),s=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=i,this.config.generateID=a}else if("json"===e){const e=Yt.toAST(t,this.config);s=JSON.stringify(e)}else"ASCIIMath"===e&&(s=function t(e,s){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 i=0;for(s='"';e[i]&&"text"===e[i].mode;)s+=e[i].body,i++;s+='"'+t(e.slice(i))}else{let i=0;for(;e[i]&&"math"===e[i].mode;)s+=t(e[i]),i++;s+=t(e.slice(i))}return s.trim()}if("text"===e.mode)return'"'+e.body+'"';let i="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":i=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(i+="(",i+=t(e.numer),i+=")/(",i+=t(e.denom),i+=")"):(i+="("+t(e.numer)+"),",i+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?i+="root("+t(e.index)+")("+t(e.body)+")":i+="sqrt("+t(e.body)+")";break;case"leftright":i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",i+=t(e.body),i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":i=ls[a]||a||("string"==typeof e.body?e.body:""),"\\"===i[0]&&(i+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?i=String.fromCharCode(parseInt("0x"+o[1])):i.length>0&&"\\"===i.charAt(0)&&(i="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":i=a&&ls[a]?ls[a]:a&&cs[a]?cs[a]:e.body;break;case"mopen":case"mclose":i+=e.body;break;case"mpunct":i=cs[a]||a;break;case"mop":"​"!==e.body&&(i="",i+="\\operatorname"===a?t(e.body):e.body||a,i+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":i=" "}if(e.subscript){i+="_";const s=t(e.subscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}if(e.superscript){i+="^";const s=t(e.superscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}return i}(t,this.config));return s}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const s=Yt.makeRoot("math",e);return this.formatMathlist(s,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!0:s.subscript&&(i=!1),e+=1,s=this.mathlist.ancestor(e);return i?t:0}_subscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!1:s.subscript&&(i=!0),e+=1,s=this.mathlist.ancestor(e);return i?t:0}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const s=this._getSelectionBounds();s&&(t={x:s.right+e.left-this.field.scrollLeft,y:s.top+e.top-this.field.scrollTop})}if(t){const s=t.x-window.scrollX;se.right&&this.field.scroll({top:0,left:s-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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 s=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=s)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1}switchMode_(t,e,s){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Ze.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,s&&this.$insert(s,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Ze.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(wt.commandAllowed(t,e)){const s=le.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(s)}else{const s=le.parseTokens(n(e),t,null,this.config.macros);s?this.mathlist.spliceCommandStringAroundInsertionPoint(s):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);if(0===e.length)Ze.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const s=this.suggestionIndex%e.length,i=t.length-e[s].match.length;0!==i&&this.mathlist.insertSuggestion(e[s].match,i),Ze.showPopoverWithLatex(this,e[s].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const s=this;let i,a,o,n,r;"object"==typeof 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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 (let i = 0; i < string.length; i++) { - const 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 (let i = from; i <= to; i++) { - const ch = String.fromCodePoint(i); - defineSymbol(ch, '', 'mord', ch); - } -} - -const 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) { - const 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; - - let result = ''; - if (parseMode === 'math') { - for (const p in MATH_SYMBOLS) { - if (Object.prototype.hasOwnProperty.call(MATH_SYMBOLS, p)) { - if (MATH_SYMBOLS[p].value === s) { - result = p; - break; - } - } - } - } else { - for (const p in TEXT_SYMBOLS) { - if (Object.prototype.hasOwnProperty.call(TEXT_SYMBOLS, 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 */ -const 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, -}; - -const 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) { - let 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 (const c in MATH_LETTER_EXCEPTIONS) { - if (Object.prototype.hasOwnProperty.call(MATH_LETTER_EXCEPTIONS, c)) { - if (MATH_LETTER_EXCEPTIONS[c] === codepoint) { - codepoint = c; - break; - } - } - } - - for (let 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 - * @memberof module:definitions - * @private - */ -function mathVariantToUnicode(char, variant, style) { - if (!/[A-Za-z0-9]/.test(char)) return char; - if (!variant && !style) return char; - - const codepoint = char.codePointAt(0); - - for (let 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 - ) { - const 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); - - let result; - if (CODEPOINT_SHORTCUTS[cp]) return CODEPOINT_SHORTCUTS[cp]; - const 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) { - let result = ''; - for (const cp of s) { - result += codepointToLatex(parseMode, cp.codePointAt(0)); - } - 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) { - let 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; - - let 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 - const command = symbol.slice(1); - if (macros && macros[command]) { - let def = macros[command]; - if (typeof def === 'object') { - def = def.def; - } - let 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 []; - const result = []; - - // Iterate over items in the dictionary - for (const p in FUNCTIONS) { - if (Object.prototype.hasOwnProperty.call(FUNCTIONS, p)) { - if (p.startsWith(s) && !FUNCTIONS[p].infix) { - result.push({ match: p, frequency: FUNCTIONS[p].frequency }); - } - } - } - - for (const p in MATH_SYMBOLS) { - if (Object.prototype.hasOwnProperty.call(MATH_SYMBOLS, p)) { - if (p.startsWith(s)) { - result.push({ match: p, frequency: MATH_SYMBOLS[p].frequency }); - } - } - } - - result.sort((a, b) => { - if (a.frequency === b.frequency) { - return a.match.length - b.match.length; - } - return (b.frequency || 0) - (a.frequency || 0); - }); - - return result; -} - -// Fonts -const MAIN = ''; // The "main" KaTeX font (in fact one of several -// depending on the math variant, size, etc...) -const 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 -const ORD = 'mord'; -const MATHORD = 'mord'; // Ordinary, e.g. '/' -const BIN = 'mbin'; // e.g. '+' -const REL = 'mrel'; // e.g. '=' -const OPEN = 'mopen'; // e.g. '(' -const CLOSE = 'mclose'; // e.g. ')' -const PUNCT = 'mpunct'; // e.g. ',' -const INNER = 'minner'; // for fractions and \left...\right. - -// const ACCENT = 'accent'; -const SPACING = 'spacing'; - -/** - * An argument template has the following syntax: - * - * := - * - * where - * - is a string whose value is displayed when the argument - * is missing - * - is one of 'string', 'color', 'dimen', 'auto', 'text', 'math' - * - 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) { - let r = argTemplate.match(/=(.+)/); - let defaultValue = '{}'; - let type = 'auto'; - let 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 []; - - let result = []; - let 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 (let 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 (let i = 1; i <= params.length; i++) { - result = result.concat(parseParamTemplate(params[i])); - } - } - } - - return result; -} - -function parseArgAsString(arg) { - return arg.map(x => x.body).join(''); -} - -/** - * Define one or more environments to be used with - * \begin{}...\end{}. - * - * @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 = {}; - const parsedParams = parseParamTemplate(params); - - // Set default values of functions - const 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 || [], - }; - for (const name of names) { - ENVIRONMENTS[name] = data; - } -} - -/** - * 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 - const 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, - }; - for (const name of names) { - FUNCTIONS[name] = data; - } -} - -category = 'Environments'; -/* - - ::= * - ::= ('l'|'c'|'r') - ::= '|' | '||' | '' - -'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 ', 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 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) { - let colCount = 0; - for (const row of array) { - colCount = Math.max(colCount, row.length); - } - const colFormat = [{ gap: 0 }, { align: 'r' }, { gap: 0 }, { align: 'l' }]; - let 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: 0.25 }, { align: 'c' }, { gap: 0 }], - jot: 0.3, - }; -}); - -// 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} - const 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 }, - (_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 }, - (_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{$$$$} -// - \fbox: sets content in 'auto' mode (frequency 777) -// - \framebox[][]{} ( := '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 ::= [||`), - o[n].backdrop && - (t += `
    `), - o[n].container && - (t += `
    `), - o[n].rows) - ) { - t += "
    "; - for (const e of o[n].rows) { - t += '
      '; - for (const i of e) - (t += '${ - i.label ? i.label : '' - }`); - t += '
    '; - } - (t += '
    '), - o[n].container && (t += ""), - o[n].backdrop && (t += ""); - } - o[n] = t; - } - (i += - "
    "), - (i += ni(t, a, e)); - const s = 'function' == typeof o[n] ? o[n]() : o[n]; - (i += li(t, s)), (i += '
    '); - } - } - const l = document.createElement('div'); - (l.className = 'ML__keyboard'), - e - ? l.classList.add(e) - : t.config.virtualKeyboardTheme - ? l.classList.add(t.config.virtualKeyboardTheme) - : /android|cros/i.test(navigator.userAgent) && - l.classList.add('material'), - (l.innerHTML = i), - ri( - t, - l.querySelectorAll( - '.keycap, .action, .fnbutton, .bigfnbutton' - ) - ); - const c = l.getElementsByClassName('layer-switch'); - for (let e = 0; e < c.length; ++e) - c[e].classList.contains('shift') - ? t._attachButtonHandlers(c[e], { - pressed: ['shiftKeyboardLayer', 'shift'], - default: [ - 'switchKeyboardLayer', - c[e].getAttribute('data-layer'), - ], - pressAndHoldEnd: 'unshiftKeyboardLayer', - }) - : t._attachButtonHandlers(c[e], { - default: [ - 'switchKeyboardLayer', - c[e].getAttribute('data-layer'), - ], - }); - const h = l.getElementsByClassName('keyboard-layer'); - return ( - Array.from(h).forEach(t => { - t.addEventListener('mousedown', t => { - t.preventDefault(), t.stopPropagation(); - }), - t.addEventListener('touchstart', t => { - t.preventDefault(), t.stopPropagation(); - }); - }), - h[0].classList.add('is-visible'), - window.addEventListener('mouseup', function() { - t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); - }), - window.addEventListener('blur', function() { - t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); - }), - window.addEventListener('touchend', function() { - t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); - }), - window.addEventListener('touchcancel', function() { - t.hideAlternateKeys_(), t.unshiftKeyboardLayer_(); - }), - l - ); - }, - makeKeycap: ri, - }; - const hi = { - '−': '-', - '-': '-', - '\\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', - }, - di = { - '\\pm': '+-', - '\\times': 'xx', - '\\colon': ':', - '\\vert': '|', - '\\Vert': '||', - '\\mid': '|', - '\\lbrace': '{', - '\\rbrace': '}', - '\\langle': '(:', - '\\rangle': ':)', - }, - pi = { - '\\pm': '±', - '\\times': '×', - '\\colon': ':', - '\\vert': '|', - '\\Vert': '∥', - '\\mid': '∣', - '\\lbrace': '{', - '\\rbrace': '}', - '\\langle': '⟨', - '\\rangle': '⟩', - '\\lfloor': '⌊', - '\\rfloor': '⌋', - '\\lceil': '⌈', - '\\rceil': '⌉', - '\\vec': '⃗', - '\\acute': '´', - '\\grave': '`', - '\\dot': '˙', - '\\ddot': '¨', - '\\tilde': '~', - '\\bar': '¯', - '\\breve': '˘', - '\\check': 'ˇ', - '\\hat': '^', - }; - function mi(t) { - return t - .replace(/"/g, '"') - .replace(/'/g, ''') - .replace(//g, '>'); - } - function ui(t, e) { - return t && e.generateID ? ' extid="' + t + '"' : ''; - } - function fi(t, e, i) { - let s = !1; - e = e || t.atoms.length; - let a = '', - o = '', - n = -1, - r = -1; - const l = t.atoms[t.index]; - if ( - (t.index < e && - ('mord' === l.type || 'textord' === l.type) && - '0123456789,.'.indexOf(l.body) < 0 && - ((o = l.toMathML(i)), - l.superscript && (n = t.index), - l.subscript && (r = t.index), - (t.index += 1)), - o.length > 0) - ) { - if ( - ((s = !0), - gi(t) && ((n = t.index), (t.index += 1)), - yi(t) && ((r = t.index), (t.index += 1)), - n >= 0 && r >= 0) - ) - (a = '' + o), - (a += Si(t.atoms[r].subscript, 0, 0, i).mathML), - (a += Si(t.atoms[n].superscript, 0, 0, i).mathML), - (a += ''); - else if (n >= 0) { - if (((a = '' + o), gi(t))) { - const e = Si(t.atoms[n].superscript, 0, 0, i).mathML, - s = Si(t.atoms[n + 1].superscript, 0, 0, i).mathML; - a += - ('′' !== e && '′' !== e) || - ('′' !== s && '′' !== s) - ? '′' === e || - '′' === e - ? '′' - : e - : '″'; - } else a += Si(t.atoms[n].superscript, 0, 0, i).mathML; - a += ''; - } else - r >= 0 - ? ((a = '' + o), - (a += Si(t.atoms[r].subscript, 0, 0, i).mathML), - (a += '')) - : (a = o); - ('mi' !== t.lastType && - 'mn' !== t.lastType && - 'mtext' !== t.lastType && - 'fence' !== t.lastType) || - /^(.*)<\/mo>$/.test(a) || - (a = '⁢' + a), - o.endsWith('>f') || o.endsWith('>g') - ? ((a += ' ⁡ '), - (t.lastType = 'applyfunction')) - : (t.lastType = /^(.*)<\/mo>$/.test(a) - ? 'mo' - : 'mi'), - (t.mathML += a); - } - return s; - } - function gi(t) { - return ( - t.index < t.atoms.length && - t.atoms[t.index].superscript && - 'msubsup' === t.atoms[t.index].type - ); - } - function yi(t) { - return ( - t.index < t.atoms.length && - t.atoms[t.index].subscript && - 'msubsup' === t.atoms[t.index].type - ); - } - function bi(t, e, i) { - let s = !1, - a = '', - o = e.atoms[e.index - 1]; - return ( - !!o && - (o.superscript || - o.subscript || - ((gi(e) || yi(e)) && - ((o = e.atoms[e.index]), (e.index += 1))), - !!o && - (o.superscript && o.subscript - ? ((a = '' + t), - (a += Si(o.subscript, 0, 0, i).mathML), - (a += Si(o.superscript, 0, 0, i).mathML), - (a += '')) - : o.superscript - ? ((a = '' + t), - (a += Si(o.superscript, 0, 0, i).mathML), - (a += '')) - : o.subscript && - ((a = '' + t), - (a += Si(o.subscript, 0, 0, i).mathML), - (a += '')), - a.length > 0 && - ((s = !0), (e.mathML += a), (e.lastType = '')), - s)) - ); - } - function xi(t, e, i) { - let s = !1; - e = e || t.atoms.length; - const a = t.index; - let o = ''; - for (; t.index < e && 'text' === t.atoms[t.index].mode; ) - (o += t.atoms[t.index].body ? t.atoms[t.index].body : ' '), - (t.index += 1); - return ( - o.length > 0 && - ((s = !0), - (o = - '' + o + ''), - (t.mathML += o), - (t.lastType = 'mtext')), - s - ); - } - function ki(t, e, i) { - let s = !1; - e = e || t.atoms.length; - const a = t.index; - let o = '', - n = (function(t) { - let e = -1, - i = t.index, - s = !1, - a = !1; - for (; i < t.atoms.length && !s && !a; ) - (s = - 'mord' !== t.atoms[i].type || - '0123456789,.'.indexOf(t.atoms[i].body) < 0), - (a = !s && t.atoms[i].superscript), - i++; - return a && (e = i - 1), e; - })(t); - for ( - n >= 0 && n < e && (e = n); - t.index < e && - 'mord' === t.atoms[t.index].type && - '0123456789,.'.indexOf(t.atoms[t.index].body) >= 0; - - ) - (o += t.atoms[t.index].body), (t.index += 1); - return ( - o.length > 0 && - ((s = !0), - (o = '' + o + ''), - n < 0 && gi(t) && ((n = t.index), (t.index += 1)), - n >= 0 && - ((o = '' + o), - (o += Si(t.atoms[n].superscript, 0, 0, i).mathML), - (o += '')), - (t.mathML += o), - (t.lastType = 'mn')), - s - ); - } - function vi(t, e, i) { - let s = !1; - e = e || t.atoms.length; - let a = '', - o = ''; - if (t.index < e && 'mopen' === t.atoms[t.index].type) { - let n = !1, - r = 0; - const l = t.index; - let c = -1, - h = l + 1; - for (; h < e && !n; ) - 'mopen' === t.atoms[h].type - ? (r += 1) - : 'mclose' === t.atoms[h].type && (r -= 1), - -1 === r && ((n = !0), (c = h)), - (h += 1); - n && - ((a = ''), - (a += Ai(t.atoms[l], i)), - (a += Si(t.atoms, l + 1, c, i).mathML), - (a += Ai(t.atoms[c], i)), - (a += ''), - ('mi' !== t.lastType && - 'mn' !== t.lastType && - 'mfrac' !== t.lastType && - 'fence' !== t.lastType) || - (a = '⁢' + a), - (t.index = c + 1), - bi(a, t, i) && ((s = !0), (t.lastType = ''), (a = '')), - (o = 'fence')); - } - return ( - a.length > 0 && ((s = !0), (t.mathML += a), (t.lastType = o)), s - ); - } - function wi(t, e, i) { - let s = !1; - e = e || t.atoms.length; - let a = '', - o = ''; - const n = t.atoms[t.index]; - if (t.index < e && ('mbin' === n.type || 'mrel' === n.type)) - (a += t.atoms[t.index].toMathML(i)), (t.index += 1), (o = 'mo'); - else if (t.index < e && 'mop' === n.type) { - if ('limits' === n.limits && (n.superscript || n.subscript)) { - const t = Ai(n, i); - n.superscript && n.subscript - ? ((a += - ('nolimits' !== n.limits - ? '' - : '') + t), - (a += Si(n.subscript, 0, 0, i).mathML), - (a += Si(n.superscript, 0, 0, i).mathML), - (a += - 'nolimits' !== n.limits - ? '' - : '')) - : n.superscript - ? ((a += - ('nolimits' !== n.limits ? '' : '') + - t), - (a += Si(n.superscript, 0, 0, i).mathML), - (a += - 'nolimits' !== n.limits ? '' : '')) - : ((a += - ('nolimits' !== n.limits - ? '' - : '') + t), - (a += Si(n.subscript, 0, 0, i).mathML), - (a += - 'nolimits' !== n.limits - ? '' - : '')), - (o = 'mo'); - } else { - const e = t.atoms[t.index], - n = 0 === e.latex.indexOf('\\operatorname'), - r = n - ? '' + - Mi(e.body) + - '' - : Ai(e, i); - (a += r), - (t.index += 1), - bi(a, t, i) && ((s = !0), (t.lastType = ''), (a = '')), - (t.index -= 1), - n || /^(.*)<\/mo>$/.test(r) - ? (o = n ? 'mi' : 'mo') - : ((a += '⁡'), - (o = 'applyfunction')); - } - ('mi' !== t.lastType && 'mn' !== t.lastType) || - /^(.*)<\/mo>$/.test(a) || - (a = '⁢' + a), - (t.index += 1); - } - return ( - a.length > 0 && ((s = !0), (t.mathML += a), (t.lastType = o)), s - ); - } - function Si(t, e, i, s) { - const a = { atoms: t, index: e || 0, mathML: '', lastType: '' }; - if ( - ((i = i || (t ? t.length : 0)), - 'number' == typeof t || 'boolean' == typeof t) - ) - a.mathML = t.toString(); - else if ('string' == typeof t) a.mathML = t; - else if (t && 'function' == typeof t.toMathML) - a.mathML = t.toMathML(s); - else if (Array.isArray(t)) { - let t = 0; - for (; a.index < i; ) - if ( - xi(a, i, s) || - ki(a, i, s) || - fi(a, i, s) || - wi(a, i, s) || - vi(a, i, s) - ) - t += 1; - else if (a.index < i) { - let e = a.atoms[a.index].toMathML(s); - 'mn' === a.lastType && - e.length > 0 && - 'genfrac' === a.atoms[a.index].type && - (e = '⁤' + e), - 'genfrac' === a.atoms[a.index].type - ? (a.lastType = 'mfrac') - : (a.lastType = ''), - e.length > 0 && ((a.mathML += e), (t += 1)), - (a.index += 1); - } - t > 1 && (a.mathML = '' + a.mathML + ''); - } - return a; - } - function Ai(t, e) { - let i = ''; - const s = Mi(t.body); - return s && (i = '' + s + ''), i; - } - function Mi(t) { - if (!t) return ''; - if ('string' == typeof t) return mi(t); - if (!Array.isArray(t) && 'string' == typeof t.body) - return mi(t.body); - let e = ''; - for (const i of t) 'string' == typeof i.body && (e += i.body); - return mi(e); - } - (te.MathAtom.prototype.toMathML = function(t) { - const e = { - '\\exponentialE': 'ⅇ', - '\\imaginaryI': 'ⅈ', - '\\differentialD': 'ⅆ', - '\\capitalDifferentialD': 'ⅅ', - '\\alpha': 'α', - '\\pi': 'π', - '\\infty': '∞', - '\\forall': '∀', - '\\nexists': '∄', - '\\exists': '∃', - '\\hbar': 'ℏ', - '\\cdotp': '⋅', - '\\ldots': '…', - '\\cdots': '⋯', - '\\ddots': '⋱', - '\\vdots': '⋮', - '\\ldotp': '.', - }, - i = { - '\\!': -3 / 18, - '\\ ': 6 / 18, - '\\,': 3 / 18, - '\\:': 4 / 18, - '\\;': 5 / 18, - '\\enspace': 0.5, - '\\quad': 1, - '\\qquad': 2, - '\\enskip': 0.5, - }; - let s, - a, - o, - n, - r, - l, - c = '', - h = '', - d = - { - cal: 'script', - frak: 'fraktur', - bb: 'double-struck', - scr: 'script', - cmtt: 'monospace', - cmss: 'sans-serif', - }[this.fontFamily || this.font] || ''; - d && (d = ' mathvariant="' + d + '"'); - const p = this.latex ? this.latex.trim() : null; - if ('text' === this.mode) - c = '' + this.body + ''; - else - switch (this.type) { - case 'first': - break; - case 'group': - case 'root': - c = Si(this.body, 0, 0, t).mathML; - break; - case 'array': - if ( - (((this.lFence && '.' !== this.lFence) || - (this.rFence && '.' !== this.rFence)) && - ((c += ''), - this.lFence && - '.' !== this.lFence && - (c += - '' + - (pi[this.lFence] || this.lFence) + - '')), - (c += '' + - Si(this.array[a][s], 0, 0, t).mathML + - ''; - c += ''; - } - (c += ''), - ((this.lFence && '.' !== this.lFence) || - (this.rFence && '.' !== this.rFence)) && - (this.rFence && - '.' !== this.rFence && - (c += - '' + - (pi[this.lFence] || this.rFence) + - ''), - (c += '')); - break; - case 'genfrac': - (this.leftDelim || this.rightDelim) && (c += ''), - this.leftDelim && - '.' !== this.leftDelim && - (c += - '' + - (pi[this.leftDelim] || this.leftDelim) + - ''), - this.hasBarLine - ? ((c += ''), - (c += - Si(this.numer, 0, 0, t).mathML || - ' '), - (c += - Si(this.denom, 0, 0, t).mathML || - ' '), - (c += '')) - : ((c += ''), - (c += - '' + - Si(this.numer, 0, 0, t).mathML + - ''), - (c += - '' + - Si(this.denom, 0, 0, t).mathML + - ''), - (c += '')), - this.rightDelim && - '.' !== this.rightDelim && - (c += - '' + - (pi[this.rightDelim] || this.rightDelim) + - ''), - (this.leftDelim || this.rightDelim) && - (c += ''); - break; - case 'surd': - this.index - ? ((c += ''), - (c += Si(this.body, 0, 0, t).mathML), - (c += Si(this.index, 0, 0, t).mathML), - (c += '')) - : ((c += ''), - (c += Si(this.body, 0, 0, t).mathML), - (c += '')); - break; - case 'leftright': - (c = ''), - this.leftDelim && - '.' !== this.leftDelim && - (c += - '' + - (pi[this.leftDelim] || this.leftDelim) + - ''), - this.body && (c += Si(this.body, 0, 0, t).mathML), - this.rightDelim && - '.' !== this.rightDelim && - (c += - '' + - (pi[this.rightDelim] || this.rightDelim) + - ''), - (c += ''); - break; - case 'sizeddelim': - case 'delim': - c += - '' + - (pi[this.delim] || this.delim) + - ''; - break; - case 'accent': - (c += ''), - (c += Si(this.body, 0, 0, t).mathML), - (c += '' + (pi[p] || this.accent) + ''), - (c += ''); - break; - case 'line': - case 'overlap': - break; - case 'overunder': - (r = this.overscript), - (n = this.underscript), - r && n - ? (l = this.body) - : r - ? ((l = this.body), - this.body[0] && this.body[0].underscript - ? ((n = this.body[0].underscript), - (l = this.body[0].body)) - : this.body[0] && - 'first' === this.body[0].type && - this.body[1] && - this.body[1].underscript && - ((n = this.body[1].underscript), - (l = this.body[1].body))) - : n && - ((l = this.body), - this.body[0] && this.body[0].overscript - ? ((r = this.body[0].overscript), - (l = this.body[0].body)) - : this.body[0] && - 'first' === this.body[0].type && - this.body[1] && - this.body[1].overscript && - ((r = this.body[1].overscript), - (l = this.body[1].body))), - r && n - ? ((c += - '' + - Si(l, 0, 0, t).mathML), - (c += Si(n, 0, 0, t).mathML), - (c += Si(r, 0, 0, t).mathML), - (c += '')) - : r - ? ((c += - '' + - Si(l, 0, 0, t).mathML), - (c += Si(r, 0, 0, t).mathML), - (c += '')) - : n && - ((c += - '' + - Si(l, 0, 0, t).mathML), - (c += Si(n, 0, 0, t).mathML), - (c += '')); - break; - case 'placeholder': - case 'mord': { - c = - e[p] || - p || - ('string' == typeof this.body ? this.body : ''); - const i = p - ? p.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) - : null; - i - ? (c = '&#x' + i[1] + ';') - : c.length > 0 && - '\\' === c.charAt(0) && - (c = - 'string' == typeof this.body && - this.body.charCodeAt(0) > 255 - ? '&#x' + - ( - '000000' + - this.body.charCodeAt(0).toString(16) - ).substr(-4) + - ';' - : 'string' == typeof this.body - ? this.body.charAt(0) - : this.body); - const s = /\d/.test(c) ? 'mn' : 'mi'; - c = - '<' + - s + - d + - ui(this.id, t) + - '>' + - mi(c) + - ''; - break; - } - case 'mbin': - case 'mrel': - case 'textord': - case 'minner': - c = - p && e[p] - ? '' + e[p] + '' - : p && pi[p] - ? '' + pi[p] + '' - : Ai(this, t); - break; - case 'mpunct': - c = - '' + - (pi[p] || p) + - ''; - break; - case 'mop': - '​' !== this.body && - ((c = ''), - (c += - '\\operatorname' === p - ? this.body - : p || this.body), - (c += '')); - break; - case 'mathstyle': - break; - case 'box': - (c = '' + - Si(this.body, 0, 0, t).mathML + - ''); - break; - case 'spacing': - c += ''; - break; - case 'enclose': - c = '' + - Si(this.body, 0, 0, t).mathML + - ''; - break; - case 'space': - c += ' '; - } - return c; - }), - (te.toMathML = function(t, e) { - return Si(t, 0, 0, e).mathML; - }); - const Ci = { - '\\imaginaryI': 'ⅈ', - '\\imaginaryJ': 'ⅉ', - '\\pi': 'π', - '\\exponentialE': 'ℯ', - '﹢': '+', - '＋': '+', - '−': '-', - '-': '-', - '﹣': '-', - '－': '-', - '\\times': '*', - '\\cdot': '*', - '⨉': '*', - '️✖': '*', - '️×': '*', - '.': '*', - '÷': '/', - '⁄': '/', - '／': '/', - '!': 'factorial', - '\\mp': 'minusplus', - '\\ne': '!=', - '\\coloneq': ':=', - '\\questeq': '?=', - '\\approx': 'approx', - '\\cong': 'congruent', - '\\sim': 'similar', - '\\equiv': 'equiv', - '\\pm': 'plusminus', - '\\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', - '\\ominus': 'ominus', - '\\odot': 'odot', - '\\otimes': 'otimes', - '\\zeta': 'Zeta', - '\\Gamma': 'Gamma', - '\\min': 'min', - '\\max': 'max', - '\\mod': 'mod', - '\\lim': 'lim', - '\\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', - '\\to': 'to', - '\\gets': 'gets', - '\\in': 'elementof', - '\\notin': '!elementof', - '\\ni': 'ownedby', - '\\owns': 'ownedby', - '\\subset': 'subset', - '\\supset': 'superset', - '\\complement': 'complement', - '\\rightarrow': 'shortLogicalImplies', - '\\leftarrow': 'shortLogicalImpliedBy', - '\\leftrightarrow': 'shortLogicalEquivalent', - '\\longrightarrow': 'logicalImplies', - '\\longleftarrow': 'logicalImpliedBy', - '\\longleftrightarrow': 'logicalEquivalent', - '\\Rightarrow': 'shortImplies', - '\\Leftarrow': 'shortImpliedBy', - '\\Leftrightarrow': 'shortEquivalent', - '\\implies': 'implies', - '\\Longrightarrow': 'implies', - '\\impliedby': 'impliedBy', - '\\Longleftarrow': 'impliedBy', - '\\iff': 'equivalent', - '\\Longleftrightarrow': 'equivalent', - }, - _i = { - '+': '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', - }, - Ti = { - 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', - 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', - arcsec: '\\arcsec %0', - arccsc: '\\arccsc %0', - arsinh: '\\arsinh %0', - arcosh: '\\arcosh %0', - artanh: '\\artanh %0', - arcsch: '\\arcsch %0', - arsech: '\\arsech %0', - arcoth: '\\arcoth %0', - ln: '\\ln%_%^ %', - log: '\\log%_%^ %', - lg: '\\lg %', - lb: '\\lb %', - sum: '\\sum%_%^ %0', - prod: '\\prod%_%^ %0', - Zeta: '\\zeta%_%^ %', - Gamma: '\\Gamma %', - min: '\\min%_%^ %', - max: '\\max%_%^ %', - mod: '\\mod%_%^ %', - lim: '\\lim%_%^ %', - 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}', - sqrt: '\\sqrt{%0}', - lcm: '\\operatorname{lcm}%', - gcd: '\\operatorname{gcd}%', - erf: '\\operatorname{erf}%', - erfc: '\\operatorname{erfc}%', - randomReal: '\\operatorname{randomReal}%', - randomInteger: '\\operatorname{randomInteger}%', - and: '%0 \\land %1', - or: '%0 \\lor %1', - xor: '%0 \\oplus %1', - not: '%0 \\lnot %1', - 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!!', - }, - Li = { - degree: 880, - nabla: 740, - curl: 740, - partial: 740, - differentialD: 740, - capitalDifferentialD: 740, - '**': 720, - odot: 710, - not: 680, - div: 660, - solidus: 660, - '/': 660, - setminus: 650, - '%': 640, - otimes: 410, - union: 350, - intersection: 350, - '*': 390, - ast: 390, - '.': 390, - oplus: 300, - ominus: 300, - '+': 275, - '-': 275, - '+-': 275, - '-+': 275, - circle: 265, - circledast: 265, - circledcirc: 265, - star: 265, - '..': 263, - to: 262, - in: 262, - '|': 261, - congruent: 265, - equiv: 260, - '=': 260, - '!=': 255, - '?=': 255, - similar: 250, - approx: 247, - '<': 245, - '>': 243, - '>=': 242, - '≥': 242, - '<=': 241, - complement: 240, - subset: 240, - superset: 240, - elementof: 240, - '!elementof': 240, - exists: 230, - '!exists': 230, - forall: 230, - and: 200, - xor: 195, - or: 190, - suchThat: 110, - ':': 100, - assign: 80, - ':=': 80, - therefore: 70, - because: 70, - 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 Fi(t, e) { - return Array.isArray(t.arg) ? t.arg[e] : void 0; - } - function Di(t) { - return (t && Li[t]) || -1; - } - function zi(t) { - return /=|=>/.test(t) ? 'right' : 'left'; - } - function Ei(t) { - if ('f' === t || 'g' === t) return !0; - const e = Ti[t]; - return !!e && !!/%[^01_^]?/.test(e); - } - function qi(t) { - t = (t || '').trim(); - let e = Ci[t]; - if (!e) - if (/^\\[^{}]+$/.test(t)) { - const i = At.getInfo(t, 'math', {}); - e = (i && i.value) || t.slice(1); - } else e = t; - return e; - } - function Pi(t) { - if (!t) return null; - const e = qi(Ni(t)), - i = [Di(e), zi(e)]; - return i[0] <= 0 ? null : i; - } - function Ii(t) { - return null !== Pi(t); - } - const Bi = { - '\\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', - }, - Oi = { - '!': 'factorial', - '\\dag': 'dagger', - '\\dagger': 'dagger', - '\\ddagger': 'dagger2', - '\\maltese': 'maltese', - '\\backprime': 'backprime', - '\\backdoubleprime': 'backprime2', - '\\prime': 'prime', - '\\doubleprime': 'prime2', - '\\$': '$', - '\\%': '%', - '\\_': '_', - '\\degree': 'degree', - }, - Ri = { - '+': 'add', - '-': 'add', - '*': 'multiply', - '=': 'equal', - ',': 'list', - ';': 'list2', - and: 'and', - or: 'or', - xor: 'xor', - union: 'union', - shortLogicalEquivalent: 'logicalEquivalent', - logicalEquivalent: 'logicalEquivalent', - shortEquivalent: 'equivalent', - equivalent: 'equivalent', - }, - Ki = { ',': 'list', ';': 'list2' }; - function Ni(t) { - if (Array.isArray(t)) { - let e = ''; - for (const i of t) e += Ni(i); - return e; - } - if ( - t.latex && - !/^\\math(op|bin|rel|open|punct|ord|inner)/.test(t.latex) - ) - return t.latex.trim(); - if ('leftright' === t.type) return ''; - if ('string' == typeof t.body) return t.body; - if (Array.isArray(t.body)) { - let e = ''; - for (const i of t.body) e += Ni(i); - return e; - } - return ''; - } - function $i(t) { - return 'string' == typeof t.sym - ? (function(t) { - let e = Ti[t]; - if (e) - return e - .replace('%1', '') - .replace('%0', '') - .replace('%', ''); - if (t.length > 1) { - const i = At.getInfo('\\' + t, 'math'); - !i || - (i.fontFamily && - 'cmr' !== i.fontFamily && - 'ams' !== i.fontFamily) || - (e = '\\' + t); - } - return e || (e = At.unicodeStringToLatex('math', t)), e; - })(t.sym) || t.sym - : ''; - } - function Wi(t) { - return parseFloat(t.num); - } - function Hi(t) { - return 'object' == typeof t && void 0 !== t.num; - } - function Vi(t) { - let e = 0; - return ( - Hi(t) && - (e = - 'object' == typeof t.num - ? void 0 !== t.num.re - ? hs(t.num.re) - : 0 - : parseFloat(t.num)), - e - ); - } - function Ui(t) { - let e = 0; - return ( - Hi(t) && - 'object' == typeof t.num && - (e = void 0 !== t.num.im ? hs(t.num.im) : 0), - e - ); - } - function ji(t) { - return t && void 0 !== t.sup; - } - function Gi(t) { - return t && void 0 !== t.sub; - } - function Zi(t, e, i) { - let s = !1; - const a = t.atoms[t.index]; - return a && a.type === e && (s = void 0 === i || Ni(a) === i), s; - } - function Xi(t, ...e) { - const i = { fn: t }; - if (e) { - const t = []; - for (const i of e) i && t.push(i); - t.length > 0 && (i.arg = t); - } - return i; - } - function Ji(t) { - return 'number' == typeof t - ? { num: t.toString() } - : 'string' == typeof t - ? { num: t } - : 'object' == typeof t - ? { num: t } - : void 0; - } - function Yi(t) { - if (Hi(t)) { - const e = Vi(t), - i = Ui(t); - return ( - 0 !== i - ? 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((t = Fi(s.arg[e], 0)), - i.arg.push(t), - i.arg.push(Fi(s.arg[e], 1))) - : (i.arg.push(t), i.arg.push(s.arg[e])); - } else - s && (i.arg.push({ sym: 'x' }), i.arg.push(s)); - } else s = !0; - else { - const s = os(t, e).ast; - let o = Ki[a]; - o && i && i.fn !== o && (i = Xi(o, i)), - '-' === a - ? i && i.arg && 'add' === i.fn - ? void 0 !== s && i.arg.push(Yi(s)) - : (i = - i && 'subtract' === i.fn - ? Xi( - 'add', - Fi(i, 0), - Yi(Fi(i, 1)), - Yi(s) - ) - : !Hi(i) || - ji(i) || - !Hi(s) || - ji(s) || - (void 0 !== s.num.re && - '0' !== s.num.re) || - void 0 === s.num.im - ? Xi('subtract', i, s) - : { - num: { - re: i.num, - im: (-parseFloat( - s.num.im - )).toString(), - }, - }) - : ((o = Ri[a]), - 'add' === o && i && 'subtract' === i.fn - ? (i = Xi( - 'add', - Fi(i, 0), - Yi(Fi(i, 1)), - s - )) - : o && i && i.fn === o && !ji(i) - ? void 0 !== s && - (s.fn === o && !ji(s) && s.arg - ? (i.arg = [...i.arg, ...s.arg]) - : i.arg && i.arg.push(s)) - : o && s && s.arg && s.fn === o - ? 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(e = ns(t.body)) - : (t.body && Array.isArray(t.body) && (t.body = ns(t.body)), - t.superscript && - Array.isArray(t.superscript) && - (t.superscript = ns(t.superscript)), - t.subscript && - Array.isArray(t.subscript) && - (t.subscript = ns(t.subscript)), - t.index && - Array.isArray(t.index) && - (t.index = ns(t.index)), - t.denom && - Array.isArray(t.denom) && - (t.denom = ns(t.denom)), - t.numer && - Array.isArray(t.numer) && - (t.numer = ns(t.numer)), - t.array && - Array.isArray(t.array) && - (t.array = t.array.map(t => t.map(t => ns(t)))), - (e = [t])); - } - return e; - } - function rs(t, e) { - return (function(t, e) { - (t.index = t.index || 0), (t.ast = void 0); - const i = []; - for (; t.atoms[t.index]; ) - if ('text' === t.atoms[t.index].mode) { - let e = ''; - for ( - ; - t.atoms[t.index] && - 'text' === t.atoms[t.index].mode; - - ) - (e += t.atoms[t.index].body), (t.index += 1); - i.push(e); - } else { - const s = os(t, e).ast; - if (!s) return; - i.push(s); - } - return i.length > 1 ? Xi('text', ...i) : i[0] || void 0; - })({ atoms: ns(t) }, e); - } - function ls(t) { - const e = Array.prototype.slice.call(arguments); - e.shift(), (t = t || '.. '); - let i = ''; - if (e.length > 0) { - '.' !== t[0] && (i += t[0]); - let s = ''; - for (const a of e) (i += s + a), (s = t[2]); - '.' !== t[1] && (i += t[1]); - } - return i; - } - function cs(t, e) { - const i = t.length; - t = t.substr(0, e.precision - 2); - for (let i = 0; i < t.length - 16; i++) { - const s = t.substr(0, i); - for (let a = 0; a < 17; a++) { - const o = t.substr(i, a + 1), - n = Math.floor((t.length - s.length) / o.length); - if (n > 1 && (s + o.repeat(n + 1)).startsWith(t)) - return '0' === o - ? s.replace(/(\d{3})/g, '$1' + e.groupSeparator) - : s.replace(/(\d{3})/g, '$1' + e.groupSeparator) + - e.beginRepeatingDigits + - o.replace( - /(\d{3})/g, - '$1' + e.groupSeparator - ) + - e.endRepeatingDigits; - } - } - return ( - i !== t.length && (t += '\\ldots'), - t.replace(/(\d{3})/g, '$1' + e.groupSeparator) - ); - } - function hs(t) { - return parseFloat(parseFloat(t).toPrecision(15)); - } - function ds(t, e) { - let i = ''; - if ('number' == typeof e.precision) { - if ('number' != typeof t) { - let i = '', - s = ''; - if ( - ('-' === t[0] - ? ((i = '-'), (t = t.substr(1))) - : '+' === t[0] && (t = t.substr(1)), - t.indexOf('.') >= 0) - ) { - const a = t.match(/(\d*).(\d*)([e|E]([-+]?[0-9]*))?/), - o = a[1], - n = a[2].substring( - 0, - Math.min(e.precision - o.length, a[2].length) - ); - if (((s = a[4] || ''), '0' === o)) { - let s = 0; - for (; '0' === n[s] && s < n.length; ) s += 1; - let a = ''; - if (s <= 4) - (a = '0' + e.decimalMarker), - (a += n.substr(0, s)), - (a += cs(t.substr(a.length), e)); - else if (s + 1 >= e.precision) (a = '0'), (i = ''); - else { - a = t[s]; - const i = cs(t.substr(s + 1), e); - i && (a += e.decimalMarker + i); - } - '0' !== a && - (t.length - 1 > e.precision && - !a.endsWith('}') && - !a.endsWith('\\ldots') && - (a += '\\ldots'), - s > 4 && - ((a += e.exponentProduct), - e.exponentMarker - ? (a += - e.exponentMarker + - (1 - s).toString()) - : (a += - '10^{' + - (1 - s).toString() + - '}'))), - (t = a); - } else { - t = o.replace( - /\B(?=(\d{3})+(?!\d))/g, - e.groupSeparator - ); - const i = cs(n, e); - i && (t += e.decimalMarker + i); - } - } else if (t.length > e.precision) { - const i = t.length; - let s = t[0]; - const a = cs(t.substr(2), e); - a && - ((s += e.decimalMarker + a), - '}' !== s[s.length - 1] && (s += '\\ldots')), - '1' !== s ? (s += e.exponentProduct) : (s = ''), - e.exponentMarker - ? (s += e.exponentMarker + (i - 2).toString()) - : (s += '10^{' + (i - 2).toString() + '}'), - (t = s); - } else - t = t.replace( - /\B(?=(\d{3})+(?!\d))/g, - e.groupSeparator - ); - return ( - s && - (s = e.exponentMarker - ? e.exponentMarker + s - : e.exponentProduct + ' 10^{' + s + '}'), - i + t + s - ); - } - t = hs(t); - } - if ('engineering' === e.scientificNotation) - if (0 === t) i = '0'; - else { - const s = Math.abs(t); - let a = Math.round(Math.log10(s)); - (a -= a % 3), s < 1e3 && (a = 0); - let o = s / Math.pow(10, a); - const n = o.toString().match(/^(.*)\.(.*)$/); - n && n[1] && n[2] && (o = n[1] + e.decimalMarker + n[2]), - e.groupSeparator && (o = cs(o.toExponential(), e)), - (a = - 0 === a - ? '' - : e.exponentMarker - ? e.exponentMarker + a - : e.exponentProduct + ' 10^{' + a + '}'), - (i = (t < 0 ? '-' : '') + o + a); - } - else { - const s = 'string' == typeof t ? t : t.toString(); - let a, - o, - n, - r = s.match(/^(.*)[e|E]([-+]?[0-9]*)$/i); - (a = s), - (n = ''), - r && - r[1] && - r[2] && - ((a = r[1]), - (o = e.exponentMarker - ? e.exponentMarker + r[2] - : e.exponentProduct + ' 10^{' + r[2] + '}')), - (r = a.match(/^(.*)\.(.*)$/)), - r && r[1] && r[2] && ((a = r[1]), (n = r[2])), - e.groupSeparator && - ((a = a.replace( - /\B(?=(\d{3})+(?!\d))/g, - e.groupSeparator - )), - (n = cs(n, e))), - n && (n = e.decimalMarker + n), - (i = a + n + (o || '')); - } - return i; - } - (te.MathAtom.prototype.toAST = function(t) { - let e, - i, - s, - a, - o = {}, - r = '', - l = { - bb: 'double-struck', - cal: 'script', - scr: 'script', - frak: 'fraktur', - cmrss: 'sans-serif', - cmrtt: 'monospace', - }[this.baseFontFamily || this.fontFamily], - c = ''; - 'b' === this.fontSeries && (c += 'bold'), - 'it' === this.fontShape && (c += 'italic'); - const h = this.latex ? this.latex.trim() : null; - switch (this.type) { - case 'root': - case 'group': - this.latex && this.latex.startsWith('\\nicefrac') - ? ((e = this.latex - .slice(9) - .match(/({.*}|[^}])({.*}|[^}])/)), - e - ? ((i = - 1 === e[1].length - ? e[1] - : e[1].substr(1, e[1].length - 2)), - (i = he.parseTokens( - n(i), - 'math', - null, - t.macros - )), - (s = - 1 === e[2].length - ? e[2] - : e[2].substr(1, e[2].length - 2)), - (s = he.parseTokens( - n(s), - 'math', - null, - t.macros - )), - (o = Xi('divide', rs(i, t), rs(s, t)))) - : (o.fn = 'divide')) - : (o.group = rs(this.body, t)); - break; - case 'genfrac': - o = Xi( - 'divide', - rs(this.numer, t), - this.denom && - this.denom[0] && - 'placeholder' === this.denom[0].type - ? Ji(1) - : rs(this.denom, t) - ); - break; - case 'surd': - o = this.index - ? Xi( - 'pow', - rs(this.body, t), - Xi('divide', 1, rs(this.index, t)) - ) - : Xi('sqrt', rs(this.body, t)); - break; - case 'rule': - break; - case 'line': - case 'overlap': - case 'accent': - case 'overunder': - break; - case 'mord': - case 'textord': - case 'mbin': - (e = h - ? h.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) - : void 0), - e - ? (r = String.fromCodePoint(parseInt(e[1], 16))) - : ((r = qi(Ni(this))), - r.length > 0 && - '\\' === r.charAt(0) && - 'string' == typeof this.body && - (r = this.body)), - (a = At.mathVariantToUnicode(r, l, c) - .replace(/[\\]/g, '\\\\') - .replace(/["]/g, '\\"') - .replace(/[\b]/g, '\\b') - .replace(/[\f]/g, '\\f') - .replace(/[\n]/g, '\\n') - .replace(/[\r]/g, '\\r') - .replace(/[\t]/g, '\\t')), - a !== r - ? ((o = { sym: a }), (l = 'normal')) - : (o = { sym: r }); - break; - case 'minner': - case 'mop': - break; - case 'box': - o = rs(this.body, t); - break; - case 'enclose': - break; - case 'array': - if ('cardinality' === this.env.name) - o = Xi('card', rs(this.array, t)); - else if ( - /array|matrix|pmatrix|bmatrix/.test(this.env.name) - ) { - o = { fn: 'array', args: [] }; - for (const e of this.array) - o.args.push(e.map(e => rs(e, t))); - } else if ('cases' === this.env.name) { - o = { fn: 'cases', args: [] }; - for (const e of this.array) - if (e[0]) { - const i = []; - i.push(rs(e[0], t)); - let s = rs(e[1], t); - s && - 'text' === s.fn && - s.arg && - /^(if|when|for)$/i.test(s.arg[0].trim()) && - (s = s.arg.filter( - t => 'string' != typeof t - )), - i.push(s || {}), - o.args.push(i); - } - } - break; - case 'spacing': - case 'space': - case 'mathstyle': - break; - default: - o = void 0; - } - return ( - o && l && 'normal' !== l && (o.variant = l), - o && - 'string' == typeof this.cssClass && - (o.class = this.cssClass), - o && 'string' == typeof this.cssId && (o.id = this.cssId), - o - ); - }), - (te.toAST = function(t, e) { - return rs(t, e); - }); - var ps = function t(e, i) { - const s = Object.assign( - { - precision: 14, - decimalMarker: '.', - groupSeparator: '\\, ', - product: '\\cdot ', - exponentProduct: '\\cdot ', - exponentMarker: '', - arcSeparator: '\\,', - scientificNotation: 'auto', - beginRepeatingDigits: '\\overline{', - endRepeatingDigits: '}', - }, - i - ); - let a = ''; - if (void 0 === e) return ''; - if (('string' == typeof e && (e = JSON.parse(e)), e.latex)) - a = e.latex; - else if (Hi(e)) { - const i = Wi(e); - if (i === -1 / 0) a = '-\\infty '; - else if (i === 1 / 0) a = '\\infty '; - else if ( - 'object' != typeof e.num || - ('string' != typeof e.num.re && 'string' != typeof e.num.im) - ) - a = isNaN(i) ? '\\text{NaN}' : ds(e.num, s); - else { - const t = Vi(e), - i = Ui(e); - isNaN(t) || isNaN(i) - ? (a = '\\text{NaN}') - : Math.abs(i) <= Number.EPSILON && - Math.abs(t) <= Number.EPSILON - ? (a = '0') - : (Math.abs(t) > Number.EPSILON && (a = ds(t, s)), - Math.abs(i) > Number.EPSILON && - (Math.abs(t) > Number.EPSILON && - (a += i > 0 ? '+' : ''), - (a += - (1 !== Math.abs(i) ? ds(i, s) : '') + - '\\imaginaryI '))); - } - ji(e) && (a += '^{' + t(e.sup, s) + '}'), - Gi(e) && (a += '_{' + t(e.sub, s) + '}'); - } else if (e.group) - (a = t(e.group, s)), - Hi(e.group) || $i(e.group) - ? 0 !== Ui(e.group) && (a = ls(e.fence || '(),', a)) - : (a = ls(e.fence || '(),', a)), - ji(e) && (a += '^{' + t(e.sup, s) + '}'), - Gi(e) && (a += '_{' + t(e.sub, s) + '}'); - else if (e.fn) - if ('bind' === e.fn) { - if ( - ((a = t(Fi(e, 0), s) + '|_{'), - e.arg && 2 === e.arg.length) - ) - a += t(Fi(e, 1)); - else { - let i = ''; - for (let s = 1; s < e.arg.length; s += 2) - (a += i + t(Fi(e, s)) + ' = ' + t(Fi(e, s + 1))), - (i = ', '); - } - a += '}'; - } else if ('divide' === e.fn) - a = - '\\frac{' + - t(Fi(e, 0), s) + - '}{' + - t(Fi(e, 1), s) + - '}'; - else if ('negate' === e.fn) a = '-' + t(Fi(e, 0), s); - else if ('subtract' === e.fn) - a = t(Fi(e, 0), s) + ' - ' + t(Fi(e, 1), s); - else if ( - ('add' !== e.fn && 'multiply' !== e.fn) || - !Array.isArray(e.arg) - ) - if ('list' === e.fn || 'list2' === e.fn) { - const i = []; - for (const a of e.arg) i.push(t(a, s)); - a = i.join('list2' === e.fn ? '; ' : ', '); - } else if ( - 'pow' === e.fn && - Array.isArray(e.arg) && - e.arg.length >= 2 - ) - (a = t(Fi(e, 0), s)), - Hi(Fi(e, 0)) || - $i(Fi(e, 0)) || - (a = ls(e.fence || '(),', a)), - (a += '^{' + t(Fi(e, 1), s) + '}'); - else if ('equal' === e.fn && e.arg && e.arg.length > 2) - a = e.arg.map(e => t(e, s)).join(' = '); - else { - const i = (function(t) { - let e = Ti[t]; - return ( - e || - (e = - t.length > 1 - ? '\\operatorname{' + t + '}%^%_ %' - : t + '%^%_ %'), - e - ); - })(e.fn); - a = i; - let o = ''; - if ( - /%(?![01_^])/.test(i) && - Array.isArray(e.arg) && - e.arg.length > 1 - ) - a += ls( - e.fence || '(),', - ...e.arg.map(e => t(e, s)) - ); - else if (Array.isArray(e.arg) && e.arg.length > 0) { - const n = t(Fi(e, 0), s), - r = t(Fi(e, 1), s), - l = [...e.arg]; - /%0/.test(i) && - ((a = a.replace('%0', n)), l.shift()), - /%1/.test(i) && - ((a = a.replace('%1', r)), l.shift()), - l.length > 0 && - (o = ls( - e.fence || '(),', - ...l.map(e => t(e, s)) - )); - } else o = ls(e.fence || '(),', ''); - (a = ji(e) - ? a.replace('%^', '^{' + t(e.sup, s) + '}') - : a.replace('%^', '')), - (a = Gi(e) - ? a.replace('%_', '_{' + t(e.sub, s) + '}') - : a.replace('%_', '')), - (a = a.replace(/%(?![01_^])/, o)), - (a = a.replace('%0', '').replace('%1', '')); - } - else { - const i = []; - for (const a of e.arg) - 'add' === a.fn || 'subtract' === a.fn - ? i.push(ls('() ', t(a, s))) - : 0 !== Vi((o = a)) && 0 !== Ui(o) - ? i.push(ls('() ', t(a, s))) - : ji(e) && 0 !== Ui(a) && 1 !== Ui(a) - ? i.push(ls('() ', t(a, s))) - : i.push(t(a, s)); - if ('multiply' === e.fn) - a = - !e.arg || - 2 !== e.arg.length || - (!Hi(e.arg[0]) && 'divide' !== e.arg[0].fn) || - (Hi(e.arg[1]) && - (0 !== Vi(e.arg[1]) || 1 !== Ui(e.arg[1]))) - ? i.join(' \\times ') - : i[0] + i[1]; - else if (e.arg && 1 === e.arg.length) - a = - 'negate' === e.arg[0].fn || - (Hi(e.arg[0]) && Wi(e.arg[0]) < 0) - ? i[0] - : '+' + i[0]; - else { - a = i[0]; - for (let t = 1; t < e.arg.length; t++) - 'negate' === e.arg[t].fn || - (Hi(e.arg[t]) && Wi(e.arg[t]) < 0) - ? (a += i[t]) - : (a += ' + ' + i[t]); - } - } - else if ('string' == typeof e.sym) { - a = $i(e); - let i = a.match(/^&#x([0-9a-f]+);$/i); - i && i[1] - ? (a = String.fromCodePoint(parseInt(i[1], 16))) - : ((i = a.match(/^&#([0-9]+);$/i)), - i && i[1] && (a = String.fromCodePoint(parseInt(i[1])))), - 'string' == typeof e.variant && - (a = - '\\' + - { - normal: 'mathrm', - 'double-struck': 'mathbb', - bold: 'mathbf', - fraktur: 'mathfrak', - script: 'mathscr', - 'sans-serif': 'mathsf', - monospace: 'mathtt', - }[e.variant] + - '{' + - a + - '}'), - ji(e) && (a += '^{' + t(e.sup, s) + '}'), - Gi(e) && (a += '_{' + t(e.sub, s) + '}'); - } else 'string' == typeof e.text && (a = '\\text{' + e.text + '}'); - var o; - return ( - 'string' == typeof e.error && - (a = '\\bbox[#F56165]{' + a + '}'), - a - ); - }; - const ms = { - '\\alpha': 'alpha ', - '\\mu': 'mew ', - '\\sigma': 'sigma ', - '\\pi': 'pie ', - '\\imaginaryI': 'eye ', - '\\sum': 'Summation ', - '\\prod': 'Product ', - a: 'a', - A: 'capital A', - '+': 'plus ', - '-': 'minus ', - ';': ' semi-colon ', - ',': ' comma ', - '|': 'Vertical bar', - '(': 'Open paren. ', - ')': ' Close paren. ', - '=': '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 ', - '​': '', - '−': 'minus ', - ':': ' such that ', - '\\colon': ' such that ', - '\\hbar': 'etch bar ', - '\\iff': - 'if, and only if, ', - '\\Longleftrightarrow': - 'if, and only if, ', - '\\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 n', - '\\C': - 'the set c', - '\\Z': - 'the set z', - '\\Q': - 'the set q', - '\\infty': 'infinity ', - '\\nabla': 'nabla ', - '\\partial': 'partial derivative of ', - '\\cdots': 'dot dot dot ', - '\\Rightarrow': 'implies ', - '\\lbrace': 'open brace', - '\\{': 'open brace', - '\\rbrace': 'close brace', - '\\}': 'close brace', - '\\langle': - 'left angle bracket', - '\\rangle': - 'right angle bracket', - '\\lfloor': 'open floor', - '\\rfloor': 'close floor', - '\\lceil': 'open ceiling', - '\\rceil': - 'close ceiling', - '\\vert': 'vertical bar', - '\\mvert': 'divides', - '\\lvert': - 'left vertical bar', - '\\rvert': - 'right vertical bar', - '\\lbrack': - ' open square bracket ', - '\\rbrack': - ' close square bracket ', - mm: 'millimeters', - cm: 'centimeters', - km: 'kilometers', - kg: 'kilograms', - }; - function us(t) { - let e = 0; - if (t && Array.isArray(t)) - for (const i of t) 'first' !== i.type && (e += 1); - return 1 === e; - } - function fs(t) { - let e = ''; - if (t && Array.isArray(t)) - for (const i of t) - 'first' !== i.type && - 'string' == typeof i.body && - (e += i.body); - return e; - } - function gs(t, e, i, s) { - e = e.split(' '); - for (const a of e) { - const e = a.match(/(.*):(.*)/); - if (e) { - const a = s || {}; - 'active' === e[2] ? (a.passive = !1) : (a[e[2]] = !0), - t.addEventListener(e[1], i, a); - } else t.addEventListener(a, i, s); - } - } - function ys(t, e, i, s) { - e = e.split(' '); - for (const a of e) { - const e = a.match(/(.*):(.*)/); - if (e) { - const a = s || {}; - 'active' === e[2] ? (a.passive = !1) : (a[e[2]] = !0), - t.removeEventListener(e[1], i, a); - } else t.removeEventListener(a, i, s); - } - } - function bs(t, e) { - let i = document.getElementById(t); - return ( - i - ? i.setAttribute( - 'data-refcount', - parseInt(i.getAttribute('data-refcount')) + 1 - ) - : ((i = document.createElement('div')), - i.setAttribute('aria-hidden', 'true'), - i.setAttribute('data-refcount', '1'), - (i.className = e), - (i.id = t), - document.body.appendChild(i)), - i - ); - } - function xs(t) { - if (!t) return null; - const e = parseInt(t.getAttribute('data-refcount')); - return ( - e && 1 !== e - ? t.setAttribute('data-refcount', e - 1) - : t.remove(), - t - ); - } - function ks(t) { - return t.element && t.element.mathfield === t; - } - (te.toSpeakableFragment = function(t, e) { - function i(t) { - return '' + t + ''; - } - if (!t) return ''; - let s = ''; - if ( - (t.id && - 'math' === e.speechMode && - (s += ''), - Array.isArray(t)) - ) { - let a = !1, - o = !1; - for (let n = 0; n < t.length; n++) - 'text' !== t[n].mode && (o = !1), - n < t.length - 2 && - 'mopen' === t[n].type && - 'mclose' === t[n + 2].type && - 'mord' === t[n + 1].type - ? ((s += ' of '), - (s += i(te.toSpeakableFragment(t[n + 1], e))), - (n += 2)) - : 'text' === t[n].mode - ? o - ? (s += t[n].body ? t[n].body : ' ') - : ((o = !0), - (s += te.toSpeakableFragment(t[n], e))) - : 'mord' === t[n].type && - /[0123456789,.]/.test(t[n].body) - ? a - ? (s += t[n].body) - : ((a = !0), - (s += te.toSpeakableFragment(t[n], e))) - : ((a = !1), - (s += te.toSpeakableFragment(t[n], e))); - } else if ('text' === t.mode) s += t.body; - else { - let a = '', - o = '', - n = '', - r = !1; - switch (t.type) { - case 'group': - case 'root': - s += te.toSpeakableFragment(t.body, e); - break; - case 'genfrac': - if ( - ((a = te.toSpeakableFragment(t.numer, e)), - (o = te.toSpeakableFragment(t.denom, e)), - us(t.numer) && us(t.denom)) - ) { - const e = { - '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 ', - }[fs(t.numer) + '/' + fs(t.denom)]; - e ? (s = e) : (s += a + ' over ' + o); - } else - s += - ' the fraction ' + - a + - ', over ' + - o + - '. End fraction.'; - break; - case 'surd': - if ( - ((n = te.toSpeakableFragment(t.body, e)), t.index) - ) { - let i = te.toSpeakableFragment(t.index, e); - i = i.trim(); - const a = i.replace(//g, ''); - s += - '3' === a - ? ' the cube root of ' + - n + - '. End cube root' - : 'n' === a - ? ' the nth root of ' + - n + - '. End root' - : ' the root with index: ' + - i + - ', of ' + - n + - '. End root'; - } else - us(t.body) - ? (s += ' the square root of ' + n + ' , ') - : (s += - ' the square root of ' + - n + - '. End square root'); - break; - case 'accent': - break; - case 'leftright': - (s += ms[t.leftDelim] || t.leftDelim), - (s += te.toSpeakableFragment(t.body, e)), - (s += ms[t.rightDelim] || t.rightDelim); - break; - case 'line': - case 'rule': - case 'overunder': - case 'overlap': - break; - case 'placeholder': - s += 'placeholder ' + t.body; - break; - case 'delim': - case 'sizeddelim': - case 'mord': - case 'minner': - case 'mbin': - case 'mrel': - case 'mpunct': - case 'mopen': - case 'mclose': - case 'textord': { - const i = t.latex ? t.latex.trim() : ''; - if ( - '\\mathbin' === i || - '\\mathrel' === i || - '\\mathopen' === i || - '\\mathclose' === i || - '\\mathpunct' === i || - '\\mathord' === i || - '\\mathinner' === i - ) { - s = te.toSpeakableFragment(t.body, e); - break; - } - let a = t.body, - o = t.latex; - if ( - (('delim' !== t.type && 'sizeddelim' !== t.type) || - (a = o = t.delim), - 'text' === e.speechMode) - ) - s += a; - else { - if ( - ('mbin' === t.type && - (s += ''), - a) - ) { - const t = ms[a] || (o ? ms[o.trim()] : ''); - if (t) s += ' ' + t; - else { - const t = o - ? (function(t) { - let e = Je.NOTES[t]; - return ( - e || - '\\' !== t.charAt(0) || - (e = - ' ' + - t.replace('\\', '') + - ' '), - Array.isArray(e) && - (e = e[0]), - e - ); - })(o.trim()) - : ''; - s += - t || - (function(t) { - let i = ''; - return ( - e.textToSpeechMarkup - ? /[a-z]/.test(t) - ? (i += - ' ' + - t + - '') - : /[A-Z]/.test(t) - ? (i += - 'capital ' + - t.toLowerCase()) - : (i += t) - : /[a-z]/.test(t) - ? (i += - " '" + - t.toUpperCase() + - "'") - : /[A-Z]/.test(t) - ? (i += - " 'capital " + - t.toUpperCase() + - "'") - : (i += t), - i - ); - })(a); - } - } else s += te.toSpeakableFragment(t.body, e); - 'mbin' === t.type && (s += ''); - } - break; - } - case 'mop': - if ('​' !== t.body) { - const a = t.latex ? t.latex.trim() : ''; - if ('\\sum' === a) - if (t.superscript && t.subscript) { - let i = te.toSpeakableFragment( - t.superscript, - e - ); - i = i.trim(); - let a = te.toSpeakableFragment( - t.subscript, - e - ); - (a = a.trim()), - (s += - ' the summation from ' + - a + - ' to ' + - i + - ' of '), - (r = !0); - } else if (t.subscript) { - let i = te.toSpeakableFragment( - t.subscript, - e - ); - (i = i.trim()), - (s += - ' the summation from ' + - i + - ' of '), - (r = !0); - } else s += ' the summation of'; - else if ('\\prod' === a) - if (t.superscript && t.subscript) { - let i = te.toSpeakableFragment( - t.superscript, - e - ); - i = i.trim(); - let a = te.toSpeakableFragment( - t.subscript, - e - ); - (a = a.trim()), - (s += - ' the product from ' + - a + - ' to ' + - i + - ' of '), - (r = !0); - } else if (t.subscript) { - let i = te.toSpeakableFragment( - t.subscript, - e - ); - (i = i.trim()), - (s += - ' the product from ' + - i + - ' of '), - (r = !0); - } else s += ' the product of '; - else if ('\\int' === a) - if (t.superscript && t.subscript) { - let a = te.toSpeakableFragment( - t.superscript, - e - ); - a = a.trim(); - let o = te.toSpeakableFragment( - t.subscript, - e - ); - (o = o.trim()), - (s += - ' the integral from ' + - i(o) + - ' to ' + - i(a) + - ' of '), - (r = !0); - } else - s += - ' the integral of '; - else if ('string' == typeof t.body) { - s += - ms[t.body] || - ms[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 = te.toSpeakableFragment(t.body, e)), - us(t.body) - ? (s += ' crossed out ' + n + ' , ') - : (s += - ' crossed out ' + n + '. End cross out'); - } - if (!r && t.superscript) { - let i = te.toSpeakableFragment(t.superscript, e); - i = i.trim(); - const a = i.replace(/<[^>]*>/g, ''); - if (us(t.superscript)) { - if ('math' === e.speechMode) { - const e = (function(t) { - if (t && Array.isArray(t)) - for (const e of t) - if ('first' !== e.type && e.id) - return e.id.toString(); - return ''; - })(t.superscript); - e && (s += ''); - } - '′' === a - ? (s += ' prime ') - : '2' === a - ? (s += ' squared ') - : '3' === a - ? (s += ' cubed ') - : isNaN(parseInt(a)) - ? (s += ' to the ' + i + '; ') - : (s += - ' to the ' + - a + - ' power; '); - } else - isNaN(parseInt(a)) - ? (s += ' raised to the ' + i + '; ') - : (s += - ' raised to the ' + - a + - ' power; '); - } - if (!r && t.subscript) { - let i = te.toSpeakableFragment(t.subscript, e); - (i = i.trim()), - us(t.subscript) - ? (s += ' sub ' + i) - : (s += ' subscript ' + i + '. End subscript. '); - } - } - return s; - }), - (te.toSpeakableText = function(t, e) { - const i = e - ? JSON.parse(JSON.stringify(e)) - : { textToSpeechMarkup: '', textToSpeechRules: 'mathlive' }; - if ( - ((i.speechMode = 'math'), - window.sre && 'sre' === i.textToSpeechRules) - ) { - i.generateID = !0; - const e = te.toMathML(t, i); - return e - ? (i.textToSpeechMarkup && - ((i.textToSpeechRulesOptions = - i.textToSpeechRulesOptions || {}), - (i.textToSpeechRulesOptions.markup = - i.textToSpeechMarkup), - 'ssml' === i.textToSpeechRulesOptions.markup && - (i.textToSpeechRulesOptions.markup = - 'ssml_step'), - (i.textToSpeechRulesOptions.rate = - i.speechEngineRate)), - i.textToSpeechRulesOptions && - window.sre.System.getInstance().setupEngine( - i.textToSpeechRulesOptions - ), - window.sre.System.getInstance().toSpeech(e)) - : ''; - } - let s = te.toSpeakableFragment(t, i); - if ('ssml' === i.textToSpeechMarkup) { - let t = ''; - i.speechEngineRate && - (t = ''), - (s = - '' + - t + - '

    ' + - s + - '

    ' + - (t ? '    ' : '') + - ''); - } else - s = - 'mac' === i.textToSpeechMarkup && - 'mac' === - (function(t) { - let e = 'other'; - return ( - navigator && - navigator.platform && - navigator.userAgent && - (/^(mac)/i.test(navigator.platform) - ? (e = 'mac') - : /^(win)/i.test(navigator.platform) - ? (e = 'win') - : /(android)/i.test( - navigator.userAgent - ) - ? (e = 'android') - : /(iphone)/i.test( - navigator.userAgent - ) || - /(ipod)/i.test( - navigator.userAgent - ) || - /(ipad)/i.test( - navigator.userAgent - ) - ? (e = 'ios') - : /\bCrOS\b/i.test( - navigator.userAgent - ) && (e = 'chromeos')), - e === t ? t : '!' + t - ); - })('mac') - ? s - .replace(//g, '') - .replace(//g, '[[emph+]]') - .replace(/<\/emphasis>/g, '') - .replace( - //g, - '[[slc $1]]' - ) - .replace(/]*>/g, '') - .replace(/<\/say-as>/g, '') - : s.replace(/<[^>]*>/g, '').replace(/\s{2,}/g, ' '); - return s; - }); - class vs { - constructor(t, e) { - this.$setConfig(e || {}), - (this.element = t), - (t.mathfield = this), - (this.originalContent = t.innerHTML); - let i = this.element.textContent; - i && (i = i.trim()); - let s = ''; - this.config.substituteTextArea - ? 'string' == typeof this.config.substituteTextArea - ? (s += this.config.substituteTextArea) - : (s += '') - : /android|ipad|ipod|iphone/i.test(navigator.userAgent) - ? (s += - "\n \n \n ") - : (s += - ''), - (s += - ''), - this.config.virtualKeyboardMode || - (this.config.virtualKeyboardMode = - window.matchMedia && - window.matchMedia('(any-pointer: coarse)').matches - ? 'onfocus' - : 'off'), - 'manual' === this.config.virtualKeyboardMode - ? ((s += `')) - : (s += ''), - (s += ''), - (s += - '\n
    \n \n \n
    \n '), - (this.element.innerHTML = s); - let a = 0; - 'function' == typeof this.config.substituteTextArea - ? (this.textarea = this.config.substituteTextArea()) - : (this.textarea = this.element.children[ - a++ - ].firstElementChild), - (this.field = this.element.children[a].children[0]), - this.field.addEventListener( - 'wheel', - t => { - t.preventDefault(), t.stopPropagation(); - let e = void 0 === t.deltaX ? t.detail : -t.deltaX; - isFinite(e) || (e = t.wheelDelta / 10), - this.field.scroll({ - top: 0, - left: this.field.scrollLeft - 5 * e, - }); - }, - { passive: !1 } - ), - (this.virtualKeyboardToggleDOMNode = this.element.children[ - a++ - ].children[1]), - this._attachButtonHandlers( - this.virtualKeyboardToggleDOMNode, - { - default: 'toggleVirtualKeyboard', - alt: 'toggleVirtualKeyboardAlt', - shift: 'toggleVirtualKeyboardShift', - } - ), - (this.ariaLiveText = this.element.children[a].children[0]), - (this.accessibleNode = this.element.children[ - a++ - ].children[1]), - (this.popover = bs( - 'mathlive-popover-panel', - 'ML__popover' - )), - (this.keystrokeCaption = bs( - 'mathlive-keystroke-caption-panel', - 'ML__keystroke-caption' - )), - (this.keystrokeCaptionVisible = !1), - (this.virtualKeyboardVisible = !1), - (this.keystrokeBuffer = ''), - (this.keystrokeBufferStates = []), - (this.keystrokeBufferResetTimer = null), - (this.suggestionIndex = 0), - (this.mode = e.defaultMode || 'math'), - (this.smartModeSuppressed = !1), - (this.style = {}), - (this.blurred = !0), - gs(this.element, 'focus', this), - gs(this.element, 'blur', this), - gs(this.textarea, 'cut', this), - gs(this.textarea, 'copy', this), - gs(this.textarea, 'paste', this), - He.delegateKeyboardEvents(this.textarea, { - container: this.element, - allowDeadKey: () => 'text' === this.mode, - 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), - }), - window.PointerEvent - ? gs(this.field, 'pointerdown', this) - : gs(this.field, 'touchstart:active mousedown', this), - gs(window, 'resize', this); - const o = { ...e }; - (o.onSelectionDidChange = vs.prototype._onSelectionDidChange.bind( - this - )), - (o.onContentDidChange = vs.prototype._onContentDidChange.bind( - this - )), - (o.onAnnounce = this.config.onAnnounce), - (o.macros = this.config.macros), - (o.removeExtraneousParentheses = this.config.removeExtraneousParentheses), - (this.mathlist = new Oe.EditableMathlist(o, this)), - (this.undoManager = new (class { - constructor(t) { - (this.mathlist = t), - (this.maximumDepth = 1e3), - (this.record = !1), - (this.canCoalesce = !1), - this.reset(); - } - reset() { - (this.stack = []), (this.index = -1); - } - startRecording() { - this.record = !0; - } - canUndo() { - return this.index > 0; - } - canRedo() { - return this.index !== this.stack.length - 1; - } - undo(t) { - this.canUndo() && - (t && - 'function' == - typeof t.onUndoStateWillChange && - t.onUndoStateWillChange( - this.mathlist.target, - 'undo' - ), - this.restore(this.stack[this.index - 1], t), - (this.index -= 1), - t && - 'function' == - typeof t.onUndoStateDidChange && - t.onUndoStateDidChange( - this.mathlist.target, - 'undo' - ), - (this.canCoalesce = !1)); - } - redo(t) { - this.canRedo() && - (t && - 'function' === t.onUndoStateWillChange && - t.onUndoStateWillChange( - this.mathlist.target, - 'redo' - ), - (this.index += 1), - this.restore(this.stack[this.index], t), - t && - 'function' == - typeof t.onUndoStateDidChange && - t.onUndoStateDidChange( - this.mathlist.target, - 'redo' - ), - (this.canCoalesce = !1)); - } - pop() { - this.canUndo() && - ((this.index -= 1), this.stack.pop()); - } - snapshot(t) { - this.record && - (t && - 'function' === t.onUndoStateWillChange && - t.onUndoStateWillChange( - this.mathlist.target, - 'snapshot' - ), - this.stack.splice( - this.index + 1, - this.stack.length - this.index - 1 - ), - this.stack.push({ - latex: this.mathlist.root.toLatex(), - selection: this.mathlist.toString(), - }), - this.index++, - this.stack.length > this.maximumDepth && - this.stack.shift(), - t && - 'function' == - typeof t.onUndoStateDidChange && - t.onUndoStateDidChange( - this.mathlist.target, - 'snapshot' - ), - (this.canCoalesce = !1)); - } - snapshotAndCoalesce(t) { - this.canCoalesce && this.pop(), - this.snapshot(t), - (this.canCoalesce = !0); - } - save() { - return { - latex: this.mathlist.root.toLatex(), - selection: this.mathlist.toString(), - }; - } - restore(t, e) { - const i = this.mathlist.suppressChangeNotifications; - void 0 !== e.suppressChangeNotifications && - (this.mathlist.suppressChangeNotifications = - e.suppressChangeNotifications), - this.mathlist.insert(t ? t.latex : '', { - mode: 'math', - insertionMode: 'replaceAll', - selectionMode: 'after', - format: 'latex', - ...e, - }), - this.mathlist.setPath( - t - ? t.selection - : [{ relation: 'body', offset: 0 }] - ), - (this.mathlist.suppressChangeNotifications = i); - } - })(this.mathlist)), - i.length > 0 && this.$latex(i), - this.undoManager.startRecording(), - this.undoManager.snapshot(this.config); - } - handleEvent(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( - () => ks(this) && this._onResize() - )); - break; - case 'cut': - this._onCut(t); - break; - case 'copy': - this._onCopy(t); - break; - case 'paste': - this._onPaste(t); - } - } - $revertToOriginalContent() { - (this.element.innerHTML = this.originalContent), - (this.element.mathfield = null), - delete this.accessibleNode, - delete this.ariaLiveText, - delete this.field, - ys(this.textarea, 'cut', this), - ys(this.textarea, 'copy', this), - ys(this.textarea, 'paste', this), - this.textarea.remove(), - delete this.textarea, - this.virtualKeyboardToggleDOMNode.remove(), - delete this.virtualKeyboardToggleDOMNode, - xs(this.popover), - xs(this.keystrokeCaption), - xs(this.virtualKeyboard), - xs( - document.getElementById('mathlive-alternate-keys-panel') - ), - ys(this.element, 'pointerdown', this), - ys(this.element, 'touchstart:active mousedown', this), - ys(this.element, 'focus', this), - ys(this.element, 'blur', this), - ys(window, 'resize', this), - delete this.element; - } - _resetKeystrokeBuffer() { - (this.keystrokeBuffer = ''), - (this.keystrokeBufferStates = []), - clearTimeout(this.keystrokeBufferResetTimer); - } - _getCaretPosition() { - const t = (function t(e) { - if ( - e.classList.contains('ML__caret') || - e.classList.contains('ML__text-caret') || - e.classList.contains('ML__command-caret') - ) - return e; - let i; - return ( - Array.from(e.children).forEach(function(e) { - i = i || t(e); - }), - i - ); - })(this.field); - if (t) { - const e = t.getBoundingClientRect(); - return { x: e.right, y: e.bottom, height: e.height }; - } - return null; - } - _getSelectionBounds() { - const t = this.field.querySelectorAll('.ML__selected'); - if (t && t.length > 0) { - const e = { - top: 1 / 0, - bottom: -1 / 0, - left: 1 / 0, - right: -1 / 0, - }; - t.forEach(t => { - const i = t.getBoundingClientRect(); - i.left < e.left && (e.left = i.left), - i.right > e.right && (e.right = i.right), - i.bottom > e.bottom && (e.bottom = i.bottom), - i.top < e.top && (e.top = i.top); - }); - const i = this.field.getBoundingClientRect(), - s = e.right - e.left, - a = e.bottom - e.top; - return ( - (e.left = Math.ceil( - e.left - i.left + this.field.scrollLeft - )), - (e.right = e.left + s), - (e.top = Math.ceil(e.top - i.top)), - (e.bottom = e.top + a), - e - ); - } - return null; - } - _pathFromPoint(t, e, i) { - let s; - (i = i || {}).bias = i.bias || 0; - const a = (function t(e, i, s) { - let a = { - element: null, - distance: Number.POSITIVE_INFINITY, - }, - o = !0; - if (e.getAttribute('data-atom-id')) { - a.element = e; - const t = e.getBoundingClientRect(), - n = i - (t.left + t.right) / 2, - r = s - (t.top + t.bottom) / 2; - (a.distance = n * n + r * r), - (o = i >= t.left && i <= t.right); - } - return ( - o && - e.children && - Array.from(e.children).forEach(function(e) { - const o = t(e, i, s); - o.element && - o.distance <= a.distance && - (a = o); - }), - a - ); - })(this.field, t, e).element, - o = a ? a.getAttribute('data-atom-id') : null; - if (o) { - const 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 = me.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; - } - _onPointerDown(t) { - const e = this; - let i, - s = !1, - a = !1, - o = !1; - if (1 !== t.buttons) return; - function n(t) { - window.PointerEvent - ? (ys(e.field, 'pointermove', h), - ys( - e.field, - 'pointerend pointerleave pointercancel', - n - ), - e.field.releasePointerCapture(t.pointerId)) - : (ys(e.field, 'touchmove', h), - ys(e.field, 'touchend touchleave', n), - ys(window, 'mousemove', h), - ys(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(); - ws && - Math.abs(ws.x - d) < 5 && - Math.abs(ws.y - p) < 5 && - Date.now() < ws.time + 500 - ? ((Ss += 1), (ws.time = m)) - : ((ws = { x: d, y: p, time: m }), (Ss = 1)); - const u = this.field.getBoundingClientRect(); - if ( - d >= u.left && - d <= u.right && - p >= u.top && - p <= u.bottom - ) { - if ( - (this.$hasFocus() || - ((o = !0), - this.textarea.focus && this.textarea.focus()), - this._resetKeystrokeBuffer(), - (this.smartModeSuppressed = !1), - (i = this._pathFromPoint(d, p, { bias: 0 })), - i) - ) { - let r = document.createElement('div'); - (r.className = 'ML__scroller'), - this.element.appendChild(r), - (r.style.left = u.left - 200 + 'px'), - (r = document.createElement('div')), - (r.className = 'ML__scroller'), - this.element.appendChild(r), - (r.style.left = u.right + 'px'), - t.shiftKey - ? (this.mathlist.setRange( - this.mathlist.path, - i - ), - (i = me.clone(this.mathlist.path)), - (i[i.length - 1].offset -= 1)) - : this.mathlist.setPath(i, 0), - (o = !0), - (this.style = {}), - 3 === t.detail || Ss > 2 - ? (n(t), - (3 !== t.detail && 3 !== Ss) || - this.mathlist.selectAll_()) - : s || - ((s = !0), - window.PointerEvent - ? (gs(e.field, 'pointermove', h), - gs( - e.field, - 'pointerend pointercancel pointerup', - n - ), - e.field.setPointerCapture(t.pointerId)) - : (gs(window, 'blur', n), - t.touches - ? (gs(t.target, 'touchmove', h), - gs(t.target, 'touchend', n)) - : (gs(window, 'mousemove', h), - gs(window, 'mouseup', n))), - (2 !== t.detail && 2 !== Ss) || - ((a = !0), this.mathlist.selectGroup_())); - } - } else ws = null; - o && this._requestUpdate(), t.preventDefault(); - } - _onSelectionDidChange() { - 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 && - (Je.hidePopover(this), - this.mathlist.removeCommandString()); - } - Je.updatePopoverPosition(this, { deferred: !0 }), - 'function' == typeof this.config.onSelectionDidChange && - this.config.onSelectionDidChange(this); - } - _onContentDidChange() { - 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); - } - _nextAtomSpeechText(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 As(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 += As(this, '', r)) - : 0 !== a.offset && - (o += n ? 'end of ' + n : 'unknown'), - o - ); - } - _announce(t, e, i) { - 'function' == typeof this.config.onAnnounce && - this.config.onAnnounce(this, t, e, i); - } - _onFocus() { - this.blurred && - ((this.blurred = !1), - this.textarea.focus && this.textarea.focus(), - 'onfocus' === this.config.virtualKeyboardMode && - this.showVirtualKeyboard_(), - Je.updatePopoverPosition(this), - this.config.onFocus && this.config.onFocus(this), - this._requestUpdate()); - } - _onBlur() { - 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)); - } - _onResize() { - 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'), - Je.updatePopoverPosition(this); - } - toggleKeystrokeCaption_() { - (this.keystrokeCaptionVisible = !this.keystrokeCaptionVisible), - (this.keystrokeCaption.innerHTML = ''), - this.keystrokeCaptionVisible || - (this.keystrokeCaption.style.visibility = 'hidden'); - } - _showKeystroke(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 = - '' + - (ve.stringify(t) || t) + - '' + - 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); - } - } - $perform(t) { - if (!t) return !1; - let e, - i = !1, - s = [], - a = !1; - if ( - (Array.isArray(t) - ? ((e = t[0]), (s = t.slice(1))) - : (e = t), - (e = e.replace(/-\w/g, t => t[1].toUpperCase())), - (e += '_'), - 'function' == typeof this.mathlist[e]) - ) { - if ( - (/^(delete|transpose|add)/.test(e) && - this._resetKeystrokeBuffer(), - /^(delete|transpose|add)/.test(e) && - 'command' !== this.mode && - (this.undoManager.pop(), - this.undoManager.snapshot(this.config)), - this.mathlist[e](...s), - /^(delete|transpose|add)/.test(e) && - 'command' !== this.mode && - this.undoManager.snapshot(this.config), - /^(delete)/.test(e) && 'command' === this.mode) - ) { - const t = this.mathlist.extractCommandStringAroundInsertionPoint(), - e = At.suggest(t); - 0 === e.length - ? Je.hidePopover(this) - : Je.showPopoverWithLatex( - this, - e[0].match, - e.length > 1 - ); - } - (a = !0), (i = !0); - } else - 'function' == typeof this[e] && - ((a = this[e](...s)), (i = !0)); - return ( - (this.mathlist.isCollapsed() && - !/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test( - e - )) || - (this._resetKeystrokeBuffer(), (this.style = {})), - a && this._requestUpdate(), - i - ); - } - performWithFeedback_(t) { - return ( - this.$focus(), - this.config.keypressVibration && - navigator.vibrate && - navigator.vibrate(3), - 'moveToNextPlaceholder' === - (t = t.replace(/-\w/g, t => t[1].toUpperCase())) || - 'moveToPreviousPlaceholder' === t || - 'complete' === t - ? this.returnKeypressSound - ? (this.returnKeypressSound.load(), - this.returnKeypressSound.play().catch(t => {})) - : this.keypressSound && - (this.keypressSound.load(), - this.keypressSound.play().catch(t => {})) - : ('deletePreviousChar' !== t && - 'deleteNextChar' !== t && - 'deletePreviousWord' !== t && - 'deleteNextWord' !== t && - 'deleteToGroupStart' !== t && - 'deleteToGroupEnd' !== t && - 'deleteToMathFieldStart' !== t && - 'deleteToMathFieldEnd' !== t) || - !this.deleteKeypressSound - ? this.keypressSound && - (this.keypressSound.load(), - this.keypressSound.play().catch(t => {})) - : (this.deleteKeypressSound.load(), - this.deleteKeypressSound.play().catch(t => {})), - this.$perform(t) - ); - } - convertLastAtomsToText_(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))), - s || - (a.applyStyle({ mode: 'text' }), - (a.latex = a.body)), - (i -= 1), - (t -= 1); - } - this.mathlist.contentDidChange(); - } - convertLastAtomsToMath_(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))), - s || a.applyStyle({ mode: 'math', type: 'mord' }), - (i -= 1), - (t -= 1); - } - this.removeIsolatedSpace_(), this.mathlist.contentDidChange(); - } - removeIsolatedSpace_() { - 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); - } - } - getTextBeforeAnchor_() { - 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))) - )), - i || (t = s.body + t), - (e -= 1); - } - return t; - } - smartMode_(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 = He.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 ( - /(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test( - s - ) && - !/(αβγ)$/.test(s) - ) - return ( - this.convertLastAtomsToText_(t => - /(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test( - t.body - ) - ), - !0 - ); - if (/\?|\./.test(i)) return !0; - } - return !1; - } - _onKeystroke(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 = He.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 Oe.EditableMathlist(); - (e.root = te.makeRoot( - 'math', - he.parseTokens( - n( - 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 = ve.forString( - this.mode, - t, - e.slice(a), - this.config - )), - (a += 1); - } - (s = a - 1), - (this.keystrokeBuffer += t), - this.keystrokeBufferStates.push( - this.undoManager.save() - ), - ve.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 = ve.selectorForKeystroke(this.mode, t)), - !i && !a) - ) - return !0; - this.mathlist.decorateCommandStringAroundInsertionPoint(!1); - const r = this.mathlist.parent(); - if ( - ('moveAfterParent' === a && - r && - 'leftright' === r.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)$/.test( - i - ) - ) { - const t = { - ...this.mathlist.anchorStyle(), - ...this.style, - }; - this.mathlist.insert(He.eventToChar(e), { - suppressChangeNotifications: !0, - mode: this.mode, - style: t, - }); - const i = this.mode; - this.undoManager.snapshotAndCoalesce(this.config), - this.undoManager.restore( - this.keystrokeBufferStates[s], - { - ...this.config, - suppressChangeNotifications: !0, - } - ), - (this.mode = i); - } - this.mathlist.contentWillChange(); - const t = this.mathlist.suppressChangeNotifications; - this.mathlist.suppressChangeNotifications = !0; - const a = { ...this.mathlist.anchorStyle(), ...this.style }; - this.mathlist.insert(i, { - format: 'latex', - mode: this.mode, - style: a, - smartFence: !0, - }), - this.removeIsolatedSpace_(), - i.endsWith(' ') && - ((this.mode = 'text'), - this.mathlist.insert(' ', { - mode: 'text', - style: a, - })), - (this.mathlist.suppressChangeNotifications = t), - this.mathlist.contentDidChange(), - this.undoManager.snapshot(this.config), - this._requestUpdate(), - this._announce('replacement'), - o && this._resetKeystrokeBuffer(); - } - return ( - this.scrollIntoView(), - e && - e.preventDefault && - (e.preventDefault(), e.stopPropagation()), - !1 - ); - } - _onTypedText(t, e) { - if ( - ((e = e || {}).focus && this.$focus(), - e.feedback && - (this.config.keypressVibration && - navigator.vibrate && - navigator.vibrate(3), - this.keypressSound && - (this.keypressSound.load(), - this.keypressSound.play().catch(t => {}))), - e.commandMode && - 'command' !== this.mode && - this.switchMode_('command'), - this.mathlist.decorateCommandStringAroundInsertionPoint(!1), - e.simulateKeystroke) - ) { - const e = t.charAt(0), - i = He.charToEvent(e); - if (!this.$keystroke(He.keyboardEventToString(i), i)) - return; - } - let i = '', - a = !1; - if (this.pasteInProgress) - (this.pasteInProgress = !1), - this.mathlist.insert(t, { - smartFence: this.config.smartFence, - mode: 'math', - }); - else { - const e = { ...this.mathlist.anchorStyle(), ...this.style }, - o = s(t); - for (const t of o) - if ('command' === this.mode) { - this.mathlist.removeSuggestion(), - (this.suggestionIndex = 0); - const e = this.mathlist.extractCommandStringAroundInsertionPoint(), - s = At.suggest(e + t); - (a = s.length > 1), - 0 === s.length - ? (this.mathlist.insert(t, { - mode: 'command', - }), - /^\\[a-zA-Z\\*]+$/.test(e + t) && - this.mathlist.decorateCommandStringAroundInsertionPoint( - !0 - ), - Je.hidePopover(this)) - : (this.mathlist.insert(t, { - mode: 'command', - }), - s[0].match !== e + t && - this.mathlist.insertSuggestion( - s[0].match, - -s[0].match.length + e.length + 1 - ), - (i = s[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.$perform(i); - } else - this.config.smartSuperscript && - 'superscript' === this.mathlist.relation() && - /[0-9]/.test(t) && - 0 === - this.mathlist - .siblings() - .filter(t => 'first' !== t.type).length - ? (this.mathlist.insert(t, { - mode: 'math', - style: e, - }), - this.mathlist.moveAfterParent_()) - : this.mathlist.insert(t, { - mode: 'math', - style: e, - smartFence: this.config.smartFence, - }); - } else - 'text' === this.mode && - this.mathlist.insert(t, { - mode: 'text', - style: e, - }); - } - 'command' !== this.mode && - this.undoManager.snapshotAndCoalesce(this.config), - this._requestUpdate(), - this.scrollIntoView(), - Je.showPopoverWithLatex(this, i, a); - } - _hash() { - let t = 0; - const e = this.mathlist.root.toLatex(!1); - for (let i = 0; i < e.length; i++) - (t = 31 * t + e.charCodeAt(i)), (t |= 0); - return Math.abs(t); - } - _requestUpdate() { - this.dirty || - ((this.dirty = !0), - requestAnimationFrame(t => ks(this) && this._render())); - } - _render(t) { - (t = t || {}), - (this.dirty = !1), - window.mathlive || (window.mathlive = {}), - this.mathlist.anchor() || - (this.mathlist.path = [ - { relation: 'body', offset: 0 }, - ]), - this.mathlist.forEach(t => { - (t.caret = ''), (t.isSelected = !1); - }); - const e = this.$hasFocus(); - this.mathlist.isCollapsed() - ? (this.mathlist.anchor().caret = e ? this.mode : '') - : this.mathlist.forEachSelected(t => { - t.isSelected = !0; - }); - const i = te.decompose( - { - mathstyle: 'displaystyle', - generateID: { - seed: this._hash(), - groupNumbers: t.forHighlighting, - }, - macros: this.config.macros, - }, - this.mathlist.root - ), - s = $.makeSpan(i, 'ML__base'); - s.attributes = { translate: 'no', 'aria-hidden': 'true' }; - const a = $.makeSpan('', 'ML__strut'); - a.setStyle('height', s.height, 'em'); - const o = [a]; - if (0 !== s.depth) { - const t = $.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 = $.makeSpan(o, 'ML__mathlive'); - (this.field.innerHTML = n.toMarkup( - 0, - this.config.horizontalSpacingScale - )), - this.field.classList.toggle('ML__focused', e), - (this.accessibleNode.innerHTML = - "" + - te.toMathML(this.mathlist.root, this.config) + - ''); - const r = this._getSelectionBounds(); - if (r) { - const t = document.createElement('div'); - t.classList.add('ML__selection'), - (t.style.position = 'absolute'), - (t.style.left = r.left + 'px'), - (t.style.top = r.top + 'px'), - (t.style.width = Math.ceil(r.right - r.left) + 'px'), - (t.style.height = - Math.ceil(r.bottom - r.top - 1) + 'px'), - this.field.insertBefore(t, this.field.childNodes[0]); - } - } - _onPaste() { - return (this.pasteInProgress = !0), !0; - } - _onCut() { - return ( - setTimeout( - function() { - this.$clearSelection(), this._requestUpdate(); - }.bind(this), - 0 - ), - !0 - ); - } - _onCopy(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(); - } - formatMathlist(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 = te.toSpeakableText(t, this.config); - else if ('spoken-text' === e) { - const e = this.config.textToSpeechMarkup; - (this.config.textToSpeechMarkup = ''), - (i = te.toSpeakableText(t, this.config)), - (this.config.textToSpeechMarkup = e); - } else if ( - 'spoken-ssml' === e || - 'spoken-ssml-withHighlighting' === e - ) { - const s = this.config.textToSpeechMarkup, - a = this.config.generateID; - (this.config.textToSpeechMarkup = 'ssml'), - 'spoken-ssml-withHighlighting' === e && - (this.config.generateID = !0), - (i = te.toSpeakableText(t, this.config)), - (this.config.textToSpeechMarkup = s), - (this.config.generateID = a); - } else if ('json' === e) { - const e = te.toAST(t, this.config); - i = JSON.stringify(e); - } else - 'ASCIIMath' === e && - (i = (function t(e, i) { - if (!e) return ''; - if (Array.isArray(e)) { - let i = ''; - if (0 === e.length) return ''; - if ( - ('first' === e[0].type && e.shift(), - 'text' === e[0].mode) - ) { - let s = 0; - for ( - i = '"'; - e[s] && 'text' === e[s].mode; - - ) - (i += e[s].body), s++; - i += '"' + t(e.slice(s)); - } else { - let s = 0; - for (; e[s] && 'math' === e[s].mode; ) - (i += t(e[s])), s++; - i += t(e.slice(s)); - } - return i.trim(); - } - if ('text' === e.mode) return '"' + e.body + '"'; - let s = ''; - const a = e.latex ? e.latex.trim() : null; - let o; - switch (e.type) { - case 'group': - case 'root': - s = t(e.body); - break; - case 'array': - break; - case 'genfrac': - (e.leftDelim || e.rightDelim) && - (s += - '.' !== e.leftDelim && e.leftDelim - ? e.leftDelim - : '{:'), - e.hasBarLine - ? ((s += '('), - (s += t(e.numer)), - (s += ')/('), - (s += t(e.denom)), - (s += ')')) - : ((s += '(' + t(e.numer) + '),'), - (s += '(' + t(e.denom) + ')')), - (e.leftDelim || e.rightDelim) && - (s += - '.' !== e.rightDelim && - e.rightDelim - ? e.rightDelim - : '{:'); - break; - case 'surd': - e.index - ? (s += - 'root(' + - t(e.index) + - ')(' + - t(e.body) + - ')') - : (s += 'sqrt(' + t(e.body) + ')'); - break; - case 'leftright': - (s += - '.' !== e.leftDelim && e.leftDelim - ? e.leftDelim - : '{:'), - (s += t(e.body)), - (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 = - hi[a] || - a || - ('string' == typeof e.body - ? e.body - : '')), - '\\' === s[0] && (s += ''), - (o = a - ? a.match( - /[{]?\\char"([0-9abcdefABCDEF]*)[}]?/ - ) - : null), - o - ? (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 && hi[a] - ? hi[a] - : a && di[a] - ? di[a] - : e.body; - break; - case 'mopen': - case 'mclose': - s += e.body; - break; - case 'mpunct': - s = di[a] || a; - break; - case 'mop': - '​' !== e.body && - ((s = ''), - (s += - '\\operatorname' === a - ? t(e.body) - : e.body || a), - (s += ' ')); - break; - case 'mathstyle': - case 'box': - case 'spacing': - case 'enclose': - break; - case 'space': - s = ' '; - } - if (e.subscript) { - s += '_'; - const i = t(e.subscript); - i.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(i) - ? (s += '(' + i + ')') - : (s += i); - } - if (e.superscript) { - s += '^'; - const i = t(e.superscript); - i.length > 1 && !/^(-)?\d+(\.\d*)?$/.test(i) - ? (s += '(' + i + ')') - : (s += i); - } - return s; - })(t, this.config)); - return i; - } - $text(t) { - return this.formatMathlist(this.mathlist.root, t); - } - $selectedText(t) { - const e = this.mathlist.getSelectedAtoms(); - if (!e) return ''; - const i = te.makeRoot('math', e); - return this.formatMathlist(i, t); - } - $selectionIsCollapsed() { - return this.mathlist.isCollapsed(); - } - $selectionDepth() { - return this.mathlist.path.length; - } - _superscriptDepth() { - 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; - } - _subscriptDepth() { - 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; - } - $selectionAtStart() { - return 0 === this.mathlist.startOffset(); - } - $selectionAtEnd() { - return ( - this.mathlist.endOffset() >= - this.mathlist.siblings().length - 1 - ); - } - groupIsSelected() { - return ( - 0 === this.mathlist.startOffset() && - this.mathlist.endOffset() >= - this.mathlist.siblings().length - 1 - ); - } - $latex(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(); - } - $el() { - return this.element; - } - undo() { - return this.complete_(), this.undoManager.undo(this.config), !0; - } - redo() { - return this.complete_(), this.undoManager.redo(this.config), !0; - } - scrollIntoView() { - this.dirty && this._render(); - let t = this._getCaretPosition(); - const e = this.field.getBoundingClientRect(); - if (!t) { - const i = this._getSelectionBounds(); - i && - (t = { - x: i.right + e.left - this.field.scrollLeft, - y: i.top + e.top - this.field.scrollTop, - }); - } - if (t) { - const i = t.x - window.scrollX; - i < e.left - ? this.field.scroll({ - top: 0, - left: i - e.left + this.field.scrollLeft - 20, - behavior: 'smooth', - }) - : i > e.right && - this.field.scroll({ - top: 0, - left: i - e.right + this.field.scrollLeft + 20, - behavior: 'smooth', - }); - } - } - scrollToStart() { - this.field.scroll(0, 0); - } - scrollToEnd() { - const t = this.field.getBoundingClientRect(); - this.field.scroll(t.left - window.scrollX, 0); - } - enterCommandMode_() { - this.switchMode_('command'); - } - copyToClipboard_() { - return ( - this.$focus(), - this.mathlist.isCollapsed() && this.$select(), - document.execCommand('copy'), - !1 - ); - } - cutToClipboard_() { - return this.$focus(), document.execCommand('cut'), !0; - } - pasteFromClipboard_() { - return this.$focus(), document.execCommand('paste'), !0; - } - $insert(t, e) { - if ('string' == typeof t && t.length > 0) { - if ( - ((e = e || {}).focus && this.$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; - } - switchMode_(t, e, i) { - this._resetKeystrokeBuffer(), - (this.smartModeSuppressed = - /text|math/.test(this.mode) && /text|math/.test(t)), - e && - this.$insert(e, { - format: 'latex', - mode: { math: 'text', text: 'math' }[t], - }), - this.mathlist.decorateCommandStringAroundInsertionPoint(!1), - 'command' === t - ? (this.mathlist.removeSuggestion(), - Je.hidePopover(this), - (this.suggestionIndex = 0), - this.virtualKeyboardVisible && - this.switchKeyboardLayer_('lower-command'), - this.mathlist.insert('', { mode: 'math' })) - : (this.mode = t), - i && this.$insert(i, { format: 'latex', mode: t }), - 'function' == typeof this.config.onModeChange && - this.config.onModeChange(this, this.mode), - this._requestUpdate(); - } - complete_(t) { - if (((t = t || {}), Je.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 (At.commandAllowed(t, e)) { - const i = he.parseTokens( - n(e), - t, - null, - this.config.macros - ); - this.mathlist.spliceCommandStringAroundInsertionPoint( - i - ); - } else { - const i = he.parseTokens( - n(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; - } - _updateSuggestion() { - this.mathlist.positionInsertionPointAfterCommitedCommand(), - this.mathlist.removeSuggestion(); - const t = this.mathlist.extractCommandStringAroundInsertionPoint(), - e = At.suggest(t); - if (0 === e.length) - Je.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), - Je.showPopoverWithLatex(this, e[i].match, e.length > 1); - } - this._requestUpdate(); - } - nextSuggestion_() { - return ( - (this.suggestionIndex += 1), this._updateSuggestion(), !1 - ); - } - previousSuggestion_() { - if (((this.suggestionIndex -= 1), this.suggestionIndex < 0)) { - this.mathlist.removeSuggestion(); - const t = this.mathlist.extractCommandStringAroundInsertionPoint(), - e = At.suggest(t); - this.suggestionIndex = e.length - 1; - } - return this._updateSuggestion(), !1; - } - _attachButtonHandlers(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) - ), - gs(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))); - } - }), - gs(t, 'mouseleave touchcancel', function() { - t.classList.remove('pressed'); - }), - gs(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, - }) - )); - } - }), - gs(t, 'mouseenter', function(e) { - 1 === e.buttons && t.classList.add('pressed'); - }), - gs(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.$perform(JSON.parse(o)), - e.stopPropagation(), - e.preventDefault(); - }); - } - _makeButton(t, e, i, s) { - const a = document.createElement('span'); - return ( - (a.innerHTML = t), - e && a.classList.add([].slice.call(e.split(' '))), - i && a.setAttribute('aria-label', i), - this._attachButtonHandlers(a, s), - a - ); - } - showAlternateKeys_(t, e) { - const i = bs( - 'mathlive-alternate-keys-panel', - 'ML__keyboard alternate-keys' - ); - this.virtualKeyboard.classList.contains('material') && - i.classList.add('material'), - e.length >= 7 - ? (i.style.width = '286px') - : 4 === e.length || 2 === e.length - ? (i.style.width = '146px') - : 1 === e.length - ? (i.style.width = '86px') - : (i.style.width = '146px'), - (i.style.height = 'auto'); - let s = ''; - for (const t of e) - (s += ''), - (i.innerHTML = s), - ci.makeKeycap( - this, - i.getElementsByTagName('li'), - 'performAlternateKeys' - ); - const a = this.virtualKeyboard - .querySelector( - 'div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="' + - t + - '"]' - ) - .getBoundingClientRect(); - if (a) { - a.top - i.clientHeight < 0 && - ((i.style.width = 'auto'), - e.length <= 6 - ? (i.style.height = '56px') - : e.length <= 12 - ? (i.style.height = '108px') - : (i.style.height = '205px')); - const t = (a.top - i.clientHeight + 5).toString() + 'px', - s = - Math.max( - 0, - Math.min( - window.innerWidth - i.offsetWidth, - (a.left + a.right - i.offsetWidth) / 2 - ) - ) + 'px'; - (i.style.transform = 'translate(' + s + ',' + t + ')'), - i.classList.add('is-visible'); - } - return !1; - } - hideAlternateKeys_() { - const t = document.getElementById( - 'mathlive-alternate-keys-panel' - ); - return ( - t && - (t.classList.remove('is-visible'), - (t.innerHTML = ''), - xs(t)), - !1 - ); - } - performAlternateKeys_(t) { - return this.hideAlternateKeys_(), this.$perform(t); - } - switchKeyboardLayer_(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].dataset.layer === t) { - i = !0; - break; - } - if (i) - for (let i = 0; i < e.length; i++) - e[i].dataset.layer === t - ? e[i].classList.add('is-visible') - : e[i].classList.remove('is-visible'); - this.$focus(); - } - return !0; - } - shiftKeyboardLayer_() { - const t = this.virtualKeyboard.querySelectorAll( - 'div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action' - ); - if (t) - for (let e = 0; e < t.length; e++) { - const i = t[e]; - let s = i.getAttribute('data-shifted'); - if (s || /^[a-z]$/.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; - } - unshiftKeyboardLayer_() { - 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; - } - insertAndUnshiftKeyboardLayer_(t) { - return this.$insert(t), this.unshiftKeyboardLayer_(), !0; - } - toggleVirtualKeyboardAlt_() { - let t = !1; - return ( - this.virtualKeyboard && - ((t = this.virtualKeyboard.classList.contains( - 'material' - )), - this.virtualKeyboard.remove(), - delete this.virtualKeyboard, - (this.virtualKeyboard = null)), - this.showVirtualKeyboard_(t ? '' : 'material'), - !1 - ); - } - toggleVirtualKeyboardShift_() { - this.config.virtualKeyboardLayout = { - qwerty: 'azerty', - azerty: 'qwertz', - qwertz: 'dvorak', - dvorak: 'colemak', - colemak: 'qwerty', - }[this.config.virtualKeyboardLayout]; - let t = this.virtualKeyboard - ? this.virtualKeyboard.querySelector( - 'div.keyboard-layer.is-visible' - ) - : null; - return ( - (t = t ? t.id : ''), - this.virtualKeyboard && - (this.virtualKeyboard.remove(), - delete this.virtualKeyboard, - (this.virtualKeyboard = null)), - this.showVirtualKeyboard_(), - t && this.switchKeyboardLayer_(t), - !1 - ); - } - showVirtualKeyboard_(t) { - return ( - (this.virtualKeyboardVisible = !1), - this.toggleVirtualKeyboard_(t), - !1 - ); - } - hideVirtualKeyboard_() { - return ( - (this.virtualKeyboardVisible = !0), - this.toggleVirtualKeyboard_(), - !1 - ); - } - toggleVirtualKeyboard_(t) { - if ( - ((this.virtualKeyboardVisible = !this - .virtualKeyboardVisible), - this.virtualKeyboardVisible) - ) { - this.virtualKeyboard - ? this.virtualKeyboard.classList.add('is-visible') - : ((this.virtualKeyboard = ci.make(this, t)), - gs( - this.virtualKeyboard, - 'touchstart:passive mousedown', - function() { - e.$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 - ); - } - $applyStyle(t) { - if ( - (this._resetKeystrokeBuffer(), - (t = (function(t) { - const e = {}; - return ( - 'string' == typeof t.mode && - (e.mode = t.mode.toLowerCase()), - 'string' == typeof t.color && (e.color = t.color), - 'string' == typeof t.backgroundColor && - (e.backgroundColor = t.backgroundColor), - 'string' == typeof t.fontFamily && - (e.fontFamily = t.fontFamily), - 'string' == typeof t.series && - (e.fontSeries = t.series), - 'string' == typeof t.fontSeries && - (e.fontSeries = t.fontSeries.toLowerCase()), - e.fontSeries && - (e.fontSeries = - { bold: 'b', medium: 'm', normal: 'mn' }[ - e.fontSeries - ] || e.fontSeries), - 'string' == typeof t.shape && - (e.fontShape = t.shape), - 'string' == typeof t.fontShape && - (e.fontShape = t.fontShape.toLowerCase()), - e.fontShape && - (e.fontShape = - { - italic: 'it', - up: 'n', - upright: 'n', - normal: 'n', - }[e.fontShape] || e.fontShape), - 'string' == typeof t.size - ? (e.fontSize = t.size) - : 'number' == typeof t.size && - (e.fontSize = - 'size' + - Math.min(0, Math.max(10, t.size))), - 'string' == typeof t.fontSize && - (e.fontSize = t.fontSize.toLowerCase()), - e.fontSize && - (e.fontSize = - { - tiny: 'size1', - scriptsize: 'size2', - footnotesize: 'size3', - small: 'size4', - normal: 'size5', - normalsize: 'size5', - large: 'size6', - Large: 'size7', - LARGE: 'size8', - huge: 'size9', - Huge: 'size10', - }[e.fontSize] || e.fontSize), - e - ); - })(t)).mode) - ) { - if (this.mathlist.isCollapsed()) this.switchMode_(t.mode); - else { - const t = this.mode, - e = - 'math' === - (this.mathlist.anchorMode() || - this.config.default) - ? 'text' - : 'math'; - let i = this.$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 - ); - } - $hasFocus() { - return ( - document.hasFocus() && - document.activeElement === this.textarea - ); - } - $focus() { - this.$hasFocus() || - (this.textarea.focus && this.textarea.focus(), - this._announce('line')); - } - $blur() { - this.$hasFocus() && this.textarea.blur && this.textarea.blur(); - } - $select() { - this.mathlist.selectAll_(); - } - $clearSelection() { - this.mathlist.delete_(); - } - $keystroke(t, e) { - return this._onKeystroke(t, e); - } - $typedText(t) { - this._onTypedText(t); - } - typedText_(t, e) { - return this._onTypedText(t, e); - } - $setConfig(t) { - if ( - (this.config || - (this.config = { - smartFence: !0, - smartSuperscript: !0, - scriptDepth: [1 / 0, 1 / 0], - removeExtraneousParentheses: !0, - overrideDefaultInlineShortcuts: !1, - virtualKeyboard: '', - virtualKeyboardLayout: 'qwerty', - namespace: '', - }), - (this.config = { ...this.config, ...t }), - void 0 !== this.config.scriptDepth && - !Array.isArray(this.config.scriptDepth)) - ) { - const t = parseInt(this.config.scriptDepth); - this.config.scriptDepth = [t, t]; - } - if ( - (void 0 === this.config.removeExtraneousParentheses && - (this.config.removeExtraneousParentheses = !0), - (this.config.onAnnounce = t.onAnnounce || Ms), - (this.config.macros = Object.assign( - {}, - At.MACROS, - this.config.macros - )), - !/^[a-z]*[-]?$/.test(this.config.namespace)) - ) - throw Error( - 'options.namespace must be a string of lowercase characters only' - ); - /-$/.test(this.config.namespace) || - (this.config.namespace += '-'), - (Qe.locale = this.config.locale || Qe.locale), - Qe.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', - }[Qe.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 = 0.5), - (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 = 0.5), - (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 = 0.5)), - this.config.keypressSound.return && - ((this.returnKeypressSound = new Audio()), - (this.returnKeypressSound.preload = 'none'), - (this.returnKeypressSound.src = this.config.keypressSound.return), - (this.returnKeypressSound.volume = 0.5)), - this.config.keypressSound.delete && - ((this.deleteKeypressSound = new Audio()), - (this.deleteKeypressSound.preload = 'none'), - (this.deleteKeypressSound.src = this.config.keypressSound.delete), - (this.deleteKeypressSound.volume = 0.5)))), - this.config.plonkSound && - ((this.plonkSound = new Audio()), - (this.plonkSound.preload = 'none'), - (this.plonkSound.src = this.config.plonkSound), - (this.plonkSound.volume = 0.5)); - } - speak_(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'), - e.withHighlighting && (s.generateID = !0)); - const a = te.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 - ); - } - } - let ws, - Ss = 0; - function As(t, e, i) { - const s = Object.assign({}, t.config); - return ( - (s.textToSpeechMarkup = ''), - (s.textToSpeechRulesOptions = s.textToSpeechRulesOptions || {}), - (s.textToSpeechRulesOptions.markup = 'none'), - e + te.toSpeakableText(i, s) - ); - } - function Ms(t, e, i, s) { - let a = ''; - 'plonk' === e - ? (t.plonkSound && - (t.plonkSound.load(), t.plonkSound.play().catch(t => {})), - t._resetKeystrokeBuffer()) - : 'delete' === e - ? (a = As(t, 'deleted: ', s)) - : 'focus' === e || /move/.test(e) - ? (a = - (t.mathlist.isCollapsed() ? '' : 'selected: ') + - t._nextAtomSpeechText(i)) - : 'replacement' === e - ? (a = As(t, '', t.mathlist.sibling(0))) - : 'line' === e - ? ((a = As(t, '', t.mathlist.root)), - (t.accessibleNode.innerHTML = - '' + - te.toMathML(t.mathlist.root, t.config) + - ''), - t.textarea.setAttribute('aria-label', 'after: ' + a)) - : (a = s ? As(t, e + ' ', s) : e); - const o = /\u00a0/.test(t.ariaLiveText.textContent) ? '   ' : '   '; - t.ariaLiveText.textContent = a + o; - } - (vs.prototype.undo_ = vs.prototype.undo), - (vs.prototype.redo_ = vs.prototype.redo), - (vs.prototype.scrollIntoView_ = vs.prototype.scrollIntoView), - (vs.prototype.scrollToStart_ = vs.prototype.scrollToStart), - (vs.prototype.scrollToEnd_ = vs.prototype.scrollToEnd), - (vs.prototype.insert_ = vs.prototype.$insert); - var Cs = { isValidMathfield: ks, MathField: vs }; - function _s(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 Ts(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; - (r = n.indexOf(e)), - -1 !== r && - ((c = r), - c > 0 && - a.push({ type: 'text', data: n.slice(0, c) }), - (l = !1)); - let h = !1; - for (; !h; ) { - if (l) { - if (((r = n.indexOf(e, c)), -1 === r)) { - h = !0; - break; - } - c !== r && - a.push({ type: 'text', data: n.slice(c, r) }), - (c = r); - } else { - if (((r = _s(i, n, c + e.length)), -1 === r)) { - 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 Ls(t, e) { - let i = [{ type: 'text', data: t }]; - for (let t = 0; t < e.inline.length; t++) { - const s = e.inline[t]; - i = Ts(i, s[0], s[1], 'textstyle'); - } - for (let t = 0; t < e.display.length; t++) { - const s = e.display[t]; - i = Ts(i, s[0], s[1], 'displaystyle'); - } - return i; - } - function Fs(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 = - "" + - e.renderToMathML(t, e) + - ''; - } 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()), - i.appendChild(Fs(t, void 0, e, !0)); - else { - const s = Ls(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(Fs(s[t].data, s[t].mathstyle, e, !0)); - } - return i; - } - const zs = { - 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 Es = { - renderMathInElement: function(t, e) { - try { - if ( - (((e = Object.assign( - {}, - zs, - e - )).ignoreClassPattern = new RegExp(e.ignoreClass)), - (e.processClassPattern = new RegExp(e.processClass)), - (e.processScriptTypePattern = new RegExp( - e.processScriptType - )), - (e.macros = At.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 = Fs( - 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(Fs(t, void 0, i, !0)) - ); - const s = Ls(t, i.TeX.delimiters); - if (1 === s.length && 'math' === s[0].type) - return ( - (e.textContent = ''), - void e.appendChild( - Fs(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 = Fs(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 qs(t, e, i, s) { - e = e || 'displaystyle'; - const a = n(t), - o = he.parseTokens(a, 'math', null, s); - if ('mathlist' === i) return o; - let r = te.decompose({ mathstyle: e }, o); - if (((r = $.coalesce(r)), 'span' === i)) return r; - const l = $.makeSpan(r, 'ML__base'), - c = $.makeSpan('', 'ML__strut'); - c.setStyle('height', l.height, 'em'); - const h = [c]; - if (0 !== l.depth) { - const t = $.makeSpan('', 'ML__strut--bottom'); - t.setStyle('height', l.height + l.depth, 'em'), - t.setStyle('vertical-align', -l.depth, 'em'), - h.push(t); - } - return h.push(l), $.makeSpan(h, 'ML__mathlive').toMarkup(); - } - function Ps(t, e) { - if (!te.toMathML) return ''; - ((e = e || {}).macros = e.macros || {}), - Object.assign(e.macros, At.MACROS); - const i = he.parseTokens(n(t), 'math', null, e.macros); - return te.toMathML(i, e); - } - function Is(t, e) { - if (!te.toSpeakableText) return ''; - ((e = e || {}).macros = e.macros || {}), - Object.assign(e.macros, At.MACROS); - const i = he.parseTokens(n(t), 'math', null, e.macros); - return te.toSpeakableText(i, e); - } - function Bs(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 => {}); - } - }); - } - } else e.speechEngine; - else { - const e = new SpeechSynthesisUtterance(t); - window && window.speechSynthesis.speak(e); - } - } - function Os(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 Rs(t) { - let e = t; - if ('string' == typeof t && ((e = document.getElementById(t)), !e)) - throw Error(`The element with ID "${t}" could not be found.`); - return e; - } - function Ks(t, e) { - Es && - (((e = e || {}).renderToMarkup = e.renderToMarkup || qs), - (e.renderToMathML = e.renderToMathML || Ps), - (e.renderToSpeakableText = e.renderToSpeakableText || Is), - (e.macros = e.macros || At.MACROS), - Es.renderMathInElement(Rs(t), e)); - } - function Ns(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: qs, - latexToMathML: Ps, - latexToSpeakableText: Is, - latexToAST: function(t, e) { - if (!te.toAST) return {}; - ((e = e || {}).macros = e.macros || {}), - Object.assign(e.macros, At.MACROS); - const i = he.parseTokens(n(t), 'math', null, e.macros); - return te.toAST(i, e); - }, - astToLatex: function(t, e) { - return ps(t, e); - }, - makeMathField: function(t, e) { - if (!Cs) throw Error('The MathField module is not loaded.'); - return ( - ((e = e || {}).handleSpeak = e.handleSpeak || Bs), - (e.handleReadAloud = e.handleReadAloud || Os), - new Cs.MathField(Rs(t), e) - ); - }, - renderMathInDocument: function(t) { - Ks(document.body, t); - }, - renderMathInElement: Ks, - revertToOriginalContent: function(t, e) { - (t = (t = Rs(t)).children[1]) instanceof Cs.MathField - ? t.revertToOriginalContent() - : (Ns((e = e || {})), - (t.innerHTML = t.getAttribute( - 'data-' + (e.namespace || '') + 'original-content' - ))); - }, - getOriginalContent: function(t, e) { - return (t = (t = Rs(t)).children[1]) instanceof Cs.MathField - ? t.originalContent - : (Ns((e = e || {})), - t.getAttribute( - 'data-' + (e.namespace || '') + 'original-content' - )); - }, - readAloud: Os, - readAloudStatus: function() { - return window - ? ((window.mathlive = window.mathlive || {}), - window.mathlive.readAloudAudio - ? window.mathlive.readAloudAudio.paused - ? 'paused' - : window.mathlive.readAloudAudio.ended - ? 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o;if(a.height=s,a.maxFontSize=1,"overline"===this.position)o=Wt(t,[i,3*s,a,s]);else{const e=$t(i);o=Wt(t,[s,a,3*s,e],"top",N.height(e))}return Rt(o,this.position)}decomposeOverunder(t){const e=Jt(t,this.body),i=t.clone({mathstyle:"scriptstyle"}),s=this.overscript?$t(Jt(i,this.overscript),t.mathstyle.adjustTo(i.mathstyle)):null,a=this.underscript?$t(Jt(i,this.underscript),t.mathstyle.adjustTo(i.mathstyle)):null;return Xt(t,e,0,0,s,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=$t(Jt(t,this.body),"inner");return Rt([e,$t(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,i=Rt("","rule");let s=this.shift&&!isNaN(this.shift)?this.shift:0;s/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return i.setStyle("border-right-width",a,"em"),i.setStyle("border-top-width",o,"em"),i.setStyle("margin-top",-(o-s),"em"),i.setStyle("border-color",t.color),i.width=a,i.height=o+s,i.depth=-s,i}decomposeOp(t){const e=t.mathstyle;let i,s=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(s=!0);let a=0,o=0;if(this.symbol){const n=s?"Size2-Regular":"Size1-Regular";i=N.makeSymbol(n,this.body,"op-symbol "+(s?"large-op":"small-op")),i.type="mop",a=(i.height-i.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=i.italic,this.bind(t,i)}else Array.isArray(this.body)?(i=N.makeOp(Jt(t,this.body)),this.bind(t,i)):i=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const s=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===s||"auto"===s&&e.size===M.DISPLAY.size?this.attachLimits(t,i,a,o):this.attachSupsub(t,i,"mop")}return this.symbol&&i.setTop(a),i}decomposeBox(t){const e=Rt(Jt(t,this.body)),i=$t();i.setStyle("position","absolute");const s="number"==typeof this.padding?this.padding:h.fboxsep;i.setStyle("height",e.height+e.depth+2*s,"em"),0!==s?i.setStyle("width","calc(100% + 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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",(N.height(e)+N.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+='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=$t("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?i=this.decomposeBox(t):"enclose"===this.type?i=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(i=this.makeSpan(t,this.body),i.classes="",this.error&&(i.classes+=" ML__error"),this.suggestion&&(i.classes+=" ML__suggestion")):"placeholder"===this.type?i=this.makeSpan(t,"⬚"):"first"===this.type&&(i=this.makeSpan(t,"​"));if(!i)return i;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(i)?i[i.length-1].caret=this.caret:i.caret=this.caret),this.containsCaret&&(Array.isArray(i)?(i[0].classes=(i[0].classes||"")+" ML__contains-caret",i[i.length-1].classes=(i[i.length-1].classes||"")+" ML__contains-caret"):i.classes=(i.classes||"")+" 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t=.8*s.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Wt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,s.metrics.sub1,N.height(o)-.8*s.metrics.xHeight),p=Wt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*s.metrics.xHeight),p=Wt(t,[a],"shift",-r),p.children[0].setRight(d));const m=$t(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(i,[e,m])}attachLimits(t,e,i,s){const a=this.superscript?$t(Jt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?$t(Jt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Xt(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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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=N.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 Gt(t){const e=$t("​","arraycolsep");return e.setWidth(t,"em"),e}function 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o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Ut[t.size]/Ut[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var Yt={MathAtom:jt,decompose:Jt,makeRoot:function(t,e){const i=new jt(t=t||"math","root",e||[]);return 0!==i.body.length&&"first"===i.body[0].type||i.body.unshift(new jt("","first")),i},GREEK_REGEX:Ht};const Qt={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},te={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 ee=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 h=0;h=0&&(o=(1-l)*o+l*i,n=(1-l)*n+l*s,r=(1-l)*r+l*a,l=-1),h+1=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)},ie=function(t){let e=t.toUpperCase();for(const i in te)if(te[i]===e){e=i;break}for(const i in Qt)if(Qt[i]===e){e=i;break}return e},se=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ae=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const oe=Yt.MathAtom;class ne{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=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 ee(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},ke.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=Me(e.array);i>=0;i--)t(Ae(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},ke.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},ke.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const 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},ke.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=Me(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ae(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=Me(i.array);let s=e-1;for(;!t&&s0)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)}},ke.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=Se(this.parent().array,i);e=_e(this.parent().array,e,-1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},ke.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=Se(this.parent().array,i);e=_e(this.parent().array,e,1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},ke.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=ve(this);i=this.extent+t;const a=e+i;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)},ke.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=ve(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),n<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&&n0&&(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)}},ke.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)},ke.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=ve(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"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 this.suppressChangeNotifications=i,!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},ke.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},ke.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},ke.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];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=Fe(t.numer),t.denom=Fe(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Fe(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Fe(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Fe(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Fe(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Fe(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Fe(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Me(t.array);e>=0;e--)this.simplifyParen(Ae(t.array,e))})}},ke.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=De(t,{...this.config,format:"ASCIIMath"}),o=le.parseTokens(n(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)wt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new Yt.MathAtom("command","command",e))}else""===t?o=[new Yt.MathAtom("command","command","\\")]:(t=De(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=le.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=le.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=le.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},ke.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=wt.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;if(Object.keys(wt.RIGHT_DELIM).forEach(e=>{t===wt.RIGHT_DELIM[e]&&(a=e)}),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},ke.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},ke.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const a of s){const t=new Yt.MathAtom("command","command",a);t.suggestion=!0,i.push(t)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},ke.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))},ke.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++},ke.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.row0){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"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)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,i.slice(e+1,e+2)),i.splice(e+1,1));else if("numer"===this.relation()){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: numerator")}else this.move(1),this.delete(-1)}else{const 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof 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e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const i=this.element.getBoundingClientRect();e.style.left=i.left+"px",e.style.top=i.top-64+"px",e.innerHTML=""+(xe.stringify(t)||t)+""+e.innerHTML,e.style.visibility="visible",setTimeout((function(){e.childNodes.length>0&&e.removeChild(e.childNodes[e.childNodes.length-1]),0===e.childNodes.length&&(e.style.visibility="hidden")}),3e3)}}$perform(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=wt.suggest(t);0===e.length?Ze.hidePopover(this):Ze.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).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$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=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"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=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let i=0,s=!1;for(this.mathlist.contentWillChange();!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let i=0,s=!1;for(;!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}}getTextBeforeAnchor_(){let t="",e=0,i=!1;for(;!i;){const s=this.mathlist.sibling(e);i=!(s&&("text"===s.mode&&!s.type||"math"===s.mode&&/mord|textord|mpunct/.test(s.type))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(i));const s=this.getTextBeforeAnchor_()+i;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(i))return!0;if(/[\^_]/.test(i))return/(^|\s)[a-zA-Z][^_]$/.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)$/i.test(s))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let i,s,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ne.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const s=this.mode;i?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==s&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(i||a||(a=xe.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!i){const t=this.mathlist.sibling(1),e=this.mathlist.sibling(-1);(t&&"text"===t.mode||e&&"text"===e.mode)&&this.mathlist.insert(" ",{mode:"text"})}if((a&&!this.$perform(a)||i)&&i){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ne.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const i=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[s],{...this.config,suppressChangeNotifications:!0}),this.mode=i}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(i,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),i.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=Ne.charToEvent(e);if(!this.$keystroke(Ne.keyboardEventToString(i),i))return}let i="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=wt.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Ze.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[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.$perform(i)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Ze.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;ibs(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,i=!1;for(;t&&!i;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,i=!0),e+=1,t=this.mathlist.ancestor(e)}const i=Yt.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=N.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=N.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=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+Yt.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=Yt.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=Yt.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=li[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&li[a]?li[a]:a&&ci[a]?ci[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=ci[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=Yt.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Ze.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Ze.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(wt.commandAllowed(t,e)){const i=le.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=le.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);if(0===e.length)Ze.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),Ze.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const i=this;let s,a,o,n,r;"object"==typeof 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t=i.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==i.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},ke.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let i=e.length-1;i>=0;i--)"command"===e[i].type?e.splice(i,1):t(e[i]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let i=Me(e.array);i>=0;i--)t(Ae(e.array,i))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},ke.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let i=this.startOffset();if("text"===t[i].mode)for(;i>=1&&"text"===t[i].mode;)e.unshift(t[i]),i--;else for(;i>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[i].type);)e.unshift(t[i]),i--;return e},ke.prototype.setSelection=function(t,e,i){t=t||0,e=e||0;const s=this.path[this.path.length-1].relation;i||(i=s);const a=this.parent();if(!a&&"body"!==i)return!1;const o=i.startsWith("cell");if(!o&&!a[i]||o&&!a.array)return!1;const n=i!==s;this.path[this.path.length-1].relation=i;const r=this.siblings().length;this.path[this.path.length-1].relation=s;const l=this.extent;"end"===e?e=r-t-1:"start"===e&&(e=-t),this.setExtent(e);const c=this.extent!==l;this.setExtent(l),t<0&&(t=r+t),t=Math.max(0,Math.min(t,r-1));const h=this.path[this.path.length-1].offset;return(n||h!==t||c)&&(n&&this.adjustPlaceholder(),this.selectionWillChange(),this.path[this.path.length-1].relation=i,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},ke.prototype.next=function(t){t=t||{};const e={body:"numer",numer:"denom",denom:"index",index:"overscript",overscript:"underscript",underscript:"subscript",subscript:"superscript"};if(this.anchorOffset()===this.siblings().length-1){this.adjustPlaceholder();let i=e[this.relation()];const s=this.parent();for(;i&&!s[i];)i=e[i];if(i)return void this.setSelection(0,0,i);if(this.parent().array){const t=Me(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ae(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=Me(i.array);let s=e-1;for(;!t&&s0)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)}},ke.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=Se(this.parent().array,i);e=_e(this.parent().array,e,-1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},ke.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=Se(this.parent().array,i);e=_e(this.parent().array,e,1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},ke.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,i=0;const s=ve(this);i=this.extent+t;const a=e+i;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)},ke.prototype.skip=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const s=ve(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),n<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&&n0&&(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)}},ke.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)},ke.prototype.jumpToMathFieldBoundary=function(t,e){const i=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const s=ve(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"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 this.suppressChangeNotifications=i,!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},ke.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},ke.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},ke.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];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=Fe(t.numer),t.denom=Fe(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Fe(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Fe(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Fe(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Fe(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Fe(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Fe(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Me(t.array);e>=0;e--)this.simplifyParen(Ae(t.array,e))})}},ke.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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=De(t,{...this.config,format:"ASCIIMath"}),o=le.parseTokens(n(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)wt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new Yt.MathAtom("command","command",e))}else""===t?o=[new Yt.MathAtom("command","command","\\")]:(t=De(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=le.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=le.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=le.parseTokens(n(t),"text",r,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 h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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},ke.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=wt.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;if(Object.keys(wt.RIGHT_DELIM).forEach(e=>{t===wt.RIGHT_DELIM[e]&&(a=e)}),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},ke.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let i=e.start;for(;i=0;e--)t[e].suggestion&&t.splice(e,1)},ke.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const i=[],s=t.substr(e);for(const t of s){const e=new Yt.MathAtom("command","command",t);e.suggestion=!0,i.push(e)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(i))},ke.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))},ke.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++},ke.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.row0){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"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)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,i.slice(e+1,e+2)),i.splice(e+1,1));else if("numer"===this.relation()){const t=this.parent().numer.filter(t=>"placeholder"!==t.type&&"first"!==t.type),e=this.parent().denom.filter(t=>"placeholder"!==t.type&&"first"!==t.type);this.path.pop(),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),1].concat(e)),Array.prototype.splice.apply(this.siblings(),[this.anchorOffset(),0].concat(t)),this.setSelection(this.anchorOffset()+t.length-1),this._announce("deleted: numerator")}else this.move(1),this.delete(-1)}else{const 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof 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e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const i=this.element.getBoundingClientRect();e.style.left=i.left+"px",e.style.top=i.top-64+"px",e.innerHTML=""+(xe.stringify(t)||t)+""+e.innerHTML,e.style.visibility="visible",setTimeout((function(){e.childNodes.length>0&&e.removeChild(e.childNodes[e.childNodes.length-1]),0===e.childNodes.length&&(e.style.visibility="hidden")}),3e3)}}$perform(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=wt.suggest(t);0===e.length?Ze.hidePopover(this):Ze.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).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),i}performWithFeedback_(t){return this.$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=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"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=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let i=0,s=!1;for(this.mathlist.contentWillChange();!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"math"!==a.mode||!(/mord|textord|mpunct/.test(a.type)||"mop"===a.type&&/[a-zA-Z]+/.test(a.body))||a.superscript||a.subscript||e&&!e(a),s||(a.applyStyle({mode:"text"}),a.latex=a.body),i-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let i=0,s=!1;for(;!s;){const a=this.mathlist.sibling(i);s=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),s||a.applyStyle({mode:"math",type:"mord"}),i-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){let t=0;for(;this.mathlist.sibling(t)&&"math"===this.mathlist.sibling(t).mode;)t-=1;if(this.mathlist.sibling(t)&&"text"===this.mathlist.sibling(t).mode&&" "===this.mathlist.sibling(t).body&&(!this.mathlist.sibling(t-1)||"math"===this.mathlist.sibling(t-1).mode)){this.mathlist.contentWillChange(),this.mathlist.siblings().splice(t-1,1),this.mathlist.contentDidChange();const e=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0,this.mathlist.setSelection(this.mathlist.anchorOffset()-1),this.mathlist.suppressChangeNotifications=e}}getTextBeforeAnchor_(){let t="",e=0,i=!1;for(;!i;){const s=this.mathlist.sibling(e);i=!(s&&("text"===s.mode&&!s.type||"math"===s.mode&&/mord|textord|mpunct/.test(s.type))),i||(t=s.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(i));const s=this.getTextBeforeAnchor_()+i;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(i))return!0;if(/[\^_]/.test(i))return/(^|\s)[a-zA-Z][^_]$/.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)$/i.test(s))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(s)&&!/(αβγ)$/.test(s))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(i))return!0}return!1}_onKeystroke(t,e){if(this._showKeystroke(t),clearTimeout(this.keystrokeBufferResetTimer),this.config.onKeystroke&&!this.config.onKeystroke(this,t,e))return e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1;let i,s,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=$e.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!i&&a{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=xe.selectorForKeystroke(this.mode,t)),!i&&!a)return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.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)$/.test(i)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert($e.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}_onTypedText(t,e){if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),i=$e.charToEvent(e);if(!this.$keystroke($e.keyboardEventToString(i),i))return}let i="",a=!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},o=s(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),s=wt.suggest(e+t);a=s.length>1,0===s.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Ze.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),s[0].match!==e+t&&this.mathlist.insertSuggestion(s[0].match,-s[0].match.length+e.length+1),i=s[0].match)}else if("math"===this.mode){const i={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(i){if("moveToSuperscript"===i){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===i&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$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(),Ze.showPopoverWithLatex(this,i,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let i=0;ibs(this)&&this._render()))}_render(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.$hasFocus();this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0});const i=Yt.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),s=$.makeSpan(i,"ML__base");s.attributes={translate:"no","aria-hidden":"true"};const a=$.makeSpan("","ML__strut");a.setStyle("height",s.height,"em");const o=[a];if(0!==s.depth){const t=$.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=$.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e),this.accessibleNode.innerHTML=""+Yt.toMathML(this.mathlist.root,this.config)+"";const r=this._getSelectionBounds();if(r){const t=document.createElement("div");t.classList.add("ML__selection"),t.style.position="absolute",t.style.left=r.left+"px",t.style.top=r.top+"px",t.style.width=Math.ceil(r.right-r.left)+"px",t.style.height=Math.ceil(r.bottom-r.top-1)+"px",this.field.insertBefore(t,this.field.childNodes[0])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(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=Yt.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const s=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),i=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=s,this.config.generateID=a}else if("json"===e){const e=Yt.toAST(t,this.config);i=JSON.stringify(e)}else"ASCIIMath"===e&&(i=function t(e,i){if(!e)return"";if(Array.isArray(e)){let i="";if(0===e.length)return"";if("first"===e[0].type&&e.shift(),"text"===e[0].mode){let s=0;for(i='"';e[s]&&"text"===e[s].mode;)i+=e[s].body,s++;i+='"'+t(e.slice(s))}else{let s=0;for(;e[s]&&"math"===e[s].mode;)i+=t(e[s]),s++;i+=t(e.slice(s))}return i.trim()}if("text"===e.mode)return'"'+e.body+'"';let s="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":s=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(s+="(",s+=t(e.numer),s+=")/(",s+=t(e.denom),s+=")"):(s+="("+t(e.numer)+"),",s+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(s+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?s+="root("+t(e.index)+")("+t(e.body)+")":s+="sqrt("+t(e.body)+")";break;case"leftright":s+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",s+=t(e.body),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=li[a]||a||("string"==typeof e.body?e.body:""),"\\"===s[0]&&(s+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?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&&li[a]?li[a]:a&&ci[a]?ci[a]:e.body;break;case"mopen":case"mclose":s+=e.body;break;case"mpunct":s=ci[a]||a;break;case"mop":"​"!==e.body&&(s="",s+="\\operatorname"===a?t(e.body):e.body||a,s+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":s=" "}if(e.subscript){s+="_";const i=t(e.subscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}if(e.superscript){s+="^";const i=t(e.superscript);i.length>1&&!/^(-)?\d+(\.\d*)?$/.test(i)?s+="("+i+")":s+=i}return s}(t,this.config));return i}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const i=Yt.makeRoot("math",e);return this.formatMathlist(i,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){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}_subscriptDepth(){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}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){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;ie.right&&this.field.scroll({top:0,left:i-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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}switchMode_(t,e,i){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Ze.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,i&&this.$insert(i,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Ze.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(wt.commandAllowed(t,e)){const i=le.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(i)}else{const i=le.parseTokens(n(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}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);if(0===e.length)Ze.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),Ze.showPopoverWithLatex(this,e[i].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const i=this;let s,a,o,n,r;"object"==typeof 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o;if(a.height=i,a.maxFontSize=1,"overline"===this.position)o=Wt(t,[s,3*i,a,i]);else{const e=$t(s);o=Wt(t,[i,a,3*i,e],"top",N.height(e))}return Rt(o,this.position)}decomposeOverunder(t){const e=Jt(t,this.body),s=t.clone({mathstyle:"scriptstyle"}),i=this.overscript?$t(Jt(s,this.overscript),t.mathstyle.adjustTo(s.mathstyle)):null,a=this.underscript?$t(Jt(s,this.underscript),t.mathstyle.adjustTo(s.mathstyle)):null;return Xt(t,e,0,0,i,a,this.mathtype||"mrel")}decomposeOverlap(t){const e=$t(Jt(t,this.body),"inner");return Rt([e,$t(null,"fix")],"left"===this.align?"llap":"rlap")}decomposeRule(t){const e=t.mathstyle,s=Rt("","rule");let i=this.shift&&!isNaN(this.shift)?this.shift:0;i/=e.sizeMultiplier;const a=this.width/e.sizeMultiplier,o=this.height/e.sizeMultiplier;return s.setStyle("border-right-width",a,"em"),s.setStyle("border-top-width",o,"em"),s.setStyle("margin-top",-(o-i),"em"),s.setStyle("border-color",t.color),s.width=a,s.height=o+i,s.depth=-i,s}decomposeOp(t){const e=t.mathstyle;let s,i=!1;e.size===M.DISPLAY.size&&"string"==typeof this.body&&"\\smallint"!==this.body&&(i=!0);let a=0,o=0;if(this.symbol){const n=i?"Size2-Regular":"Size1-Regular";s=N.makeSymbol(n,this.body,"op-symbol "+(i?"large-op":"small-op")),s.type="mop",a=(s.height-s.depth)/2-e.metrics.axisHeight*e.sizeMultiplier,o=s.italic,this.bind(t,s)}else Array.isArray(this.body)?(s=N.makeOp(Jt(t,this.body)),this.bind(t,s)):s=this.makeSpan(t,this.body);if(this.superscript||this.subscript){const i=this.limits||"auto";return this.alwaysHandleSupSub||"limits"===i||"auto"===i&&e.size===M.DISPLAY.size?this.attachLimits(t,s,a,o):this.attachSupsub(t,s,"mop")}return this.symbol&&s.setTop(a),s}decomposeBox(t){const e=Rt(Jt(t,this.body)),s=$t();s.setStyle("position","absolute");const i="number"==typeof this.padding?this.padding:h.fboxsep;s.setStyle("height",e.height+e.depth+2*i,"em"),0!==i?s.setStyle("width","calc(100% + 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i="";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",(N.height(e)+N.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&&(i+='0?s.setWidth(this.width):s.setStyle("margin-left",this.width,"em");else{const t={qquad:"qquad",quad:"quad",enspace:"enspace",";":"thickspace",":":"mediumspace",",":"thinspace","!":"negativethinspace"}[this.body]||"quad";s=$t("​","mspace "+t)}else"mathstyle"===this.type?t.setMathstyle(this.mathstyle):"box"===this.type?s=this.decomposeBox(t):"enclose"===this.type?s=this.decomposeEnclose(t):"command"===this.type||"error"===this.type?(s=this.makeSpan(t,this.body),s.classes="",this.error&&(s.classes+=" ML__error"),this.suggestion&&(s.classes+=" ML__suggestion")):"placeholder"===this.type?s=this.makeSpan(t,"⬚"):"first"===this.type&&(s=this.makeSpan(t,"​"));if(!s)return s;if(this.caret&&"styling"!==this.type&&"msubsup"!==this.type&&"command"!==this.type&&"placeholder"!==this.type&&"first"!==this.type&&(Array.isArray(s)?s[s.length-1].caret=this.caret:s.caret=this.caret),this.containsCaret&&(Array.isArray(s)?(s[0].classes=(s[0].classes||"")+" ML__contains-caret",s[s.length-1].classes=(s[s.length-1].classes||"")+" ML__contains-caret"):s.classes=(s.classes||"")+" 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t=.8*i.metrics.xHeight-(r-N.depth(a));t>0&&(r+=t,l-=t)}p=Wt(t,[o,l,a,-r],"individualShift"),this.symbol&&p.children[0].setLeft(-N.italic(e))}else o&&!a?(l=Math.max(l,i.metrics.sub1,N.height(o)-.8*i.metrics.xHeight),p=Wt(t,[o],"shift",l),p.children[0].setRight(d),this.isCharacterBox()&&p.children[0].setLeft(-N.italic(e))):!o&&a&&(r=Math.max(r,n,a.depth+.25*i.metrics.xHeight),p=Wt(t,[a],"shift",-r),p.children[0].setRight(d));const m=$t(p,"msubsup");return this.caret&&(m.caret=this.caret),N.makeSpanOfType(s,[e,m])}attachLimits(t,e,s,i){const a=this.superscript?$t(Jt(t.sup(),this.superscript),t.mathstyle.adjustTo(t.mathstyle.sup())):null,o=this.subscript?$t(Jt(t.sub(),this.subscript),t.mathstyle.adjustTo(t.mathstyle.sub())):null;return Xt(t,e,s,i,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):"object"==typeof t.generateID&&(e=t.generateID.overrideID?t.generateID.overrideID: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 s="textord"===this.type?"mord":this.type,i=N.makeSpanOfType(s,e),a=this.getStyle();i.applyStyle(a);const o=a&&a.fontSize?a.fontSize:"size5";return o!==t.parentSize?(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+o):t.parentSize!==t.size&&(i.classes+=" sizing reset-"+t.parentSize,i.classes+=" "+t.size),i.maxFontSize=Math.max(i.maxFontSize,t.sizeMultiplier||1),"text"===this.mode&&(i.classes+=" ML__text"),t.mathstyle.isTight()&&(i.isTight=!0),"math"!==this.mode&&(i.italic=0),i.setRight(i.italic),"number"==typeof t.opacity&&i.setStyle("opacity",t.opacity),this.bind(t,i),this.caret&&(this.superscript||this.subscript||(i.caret=this.caret,t.mathstyle.isTight()&&(i.isTight=!0))),i}}function Gt(t){const e=$t("​","arraycolsep");return e.setWidth(t,"em"),e}function Zt(t,e,s,i){const a=[];for(const o of e){const e=$t(Jt(t,i));e.depth=o.depth,e.height=o.height,a.push(e),a.push(o.pos-s)}return Wt(t,a,"individualShift")}function Xt(t,e,s,i,a,o,n){if(!a&&!o)return e;e=$t(e);let r=0,l=0;a&&(r=Math.max(h.bigOpSpacing1,h.bigOpSpacing3-a.depth)),o&&(l=Math.max(h.bigOpSpacing2,h.bigOpSpacing4-o.height));let c=null;if(o&&a){const n=h.bigOpSpacing5+N.height(o)+N.depth(o)+l+N.depth(e)+s;c=Wt(t,[h.bigOpSpacing5,o,l,e,r,a,h.bigOpSpacing5],"bottom",n),c.children[0].setLeft(-i),c.children[2].setLeft(i)}else if(o&&!a){const a=N.height(e)-s;c=Wt(t,[h.bigOpSpacing5,o,l,e],"top",a),c.children[0].setLeft(-i)}else if(!o&&a){const o=N.depth(e)+s;c=Wt(t,[e,r,a,h.bigOpSpacing5],"bottom",o),c.children[1].setLeft(i)}return N.makeSpanOfType(n,c,"op-limits")}function Jt(t,e){function s(t){return"mord"===t.type&&/[0-9,.]/.test(t.latex)}function i(t){return"text"===t.mode}t instanceof _||(t=new _(t));const a=!t.generateID||!t.generateID.groupNumbers;let o=[];if(Array.isArray(e)){if(0===e.length)return o;if(1===e.length)o=e[0].decompose(t),o&&a&&e[0].isSelected&&o.forEach(t=>t.selected(!0));else{let n="none",r=e[1].type,l=[],c=null,h=!0,d=null;for(let p=0;pt.selected(!0))):(l.length>0&&(o=[...o,...l],l=[]),o=o.concat(n))}n=e[p].getFinalBaseElement().type,r=e[p+1]?e[p+1].getInitialBaseElement().type:"none"}l.length>0&&(o=[...o,...l],l=[])}}else e&&(o=e.decompose(t),o&&a&&e.isSelected&&o.forEach(t=>t.selected(!0)));if(!o||0===o.length)return null;if(t.mathstyle!==t.parentMathstyle){const e=t.mathstyle.sizeMultiplier/t.parentMathstyle.sizeMultiplier;for(const t of o)t.height*=e,t.depth*=e}if(t.size!==t.parentSize){const e=Ut[t.size]/Ut[t.parentSize];for(const t of o)t.height*=e,t.depth*=e}return o}var Yt={MathAtom:jt,decompose:Jt,makeRoot:function(t,e){const s=new jt(t=t||"math","root",e||[]);return 0!==s.body.length&&"first"===s.body[0].type||s.body.unshift(new jt("","first")),s},GREEK_REGEX:Ht};const Qt={m0:"#3f3d99",m1:"#993d71",m2:"#998b3d",m3:"#3d9956",m4:"#3d5a99",m5:"#993d90",m6:"#996d3d",m7:"#43993d",m8:"#3d7999",m9:"#843d99"},te={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 ee=function(t){const e=t.toLowerCase().split("!");let s,i,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 h=0;h=0&&(o=(1-l)*o+l*s,n=(1-l)*n+l*i,r=(1-l)*r+l*a,l=-1),h+1=0&&(o=l*o+(1-l)*s,n=l*n+(1-l)*i,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)},se=function(t){let e=t.toUpperCase();for(const s in te)if(te[s]===e){e=s;break}for(const s in Qt)if(Qt[s]===e){e=s;break}return e},ie=["#d35d60","#7293cb","#e1974d","#84bb5d","#9066a7","#aD6a58","#f5a4ce","#fff590","#212121","#818787","#d4d5d2","#ffffff"],ae=["#cc2428","#3769b1","#da7e30","#409852","#6b4c9a","#922426","#e7298a","#ffe907","#000000","#525055","#adafaa","#ffffff"];const oe=Yt.MathAtom;class ne{constructor(t,e,s){this.tokens=t,this.index=0,this.args=e,this.macros=s,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=t.length}const a=t.toUpperCase()===i.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 ee(this.scanString())}scanNumber(t){const e=this.parseLiteral("-");e||this.parseLiteral("+"),this.skipWhitespace(),t=!!t;let 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t=s.start;t"placeholder"===t.type));this.setExtent(0),this.path[this.path.length-1].offset=e.start-1,0!==s.length&&this.leap(1,!1)||this.setSelection(e.start+t.length-1)}else this.siblings().splice(e.start,e.end-e.start),this.setSelection(e.start-1,0);this.contentDidChange()}},ke.prototype.removeCommandString=function(){this.contentWillChange();const t=this.suppressChangeNotifications;this.suppressChangeNotifications=!0,function t(e){if(e)if(Array.isArray(e))for(let s=e.length-1;s>=0;s--)"command"===e[s].type?e.splice(s,1):t(e[s]);else if(t(e.body),t(e.superscript),t(e.subscript),t(e.underscript),t(e.overscript),t(e.numer),t(e.denom),t(e.index),e.array)for(let s=Me(e.array);s>=0;s--)t(Ae(e.array,s))}(this.root.body),this.suppressChangeNotifications=t,this.contentDidChange()},ke.prototype.extractArgBeforeInsertionPoint=function(){const t=this.siblings();if(t.length<=1)return[];const e=[];let s=this.startOffset();if("text"===t[s].mode)for(;s>=1&&"text"===t[s].mode;)e.unshift(t[s]),s--;else for(;s>=1&&/^(mord|surd|msubsup|leftright|mop)$/.test(t[s].type);)e.unshift(t[s]),s--;return e},ke.prototype.setSelection=function(t,e,s){t=t||0,e=e||0;const i=this.path[this.path.length-1].relation;s||(s=i);const a=this.parent();if(!a&&"body"!==s)return!1;const o=s.startsWith("cell");if(!o&&!a[s]||o&&!a.array)return!1;const n=s!==i;this.path[this.path.length-1].relation=s;const r=this.siblings().length;this.path[this.path.length-1].relation=i;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=s,this.path[this.path.length-1].offset=t,this.setExtent(e),this.selectionDidChange()),!0},ke.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 s=e[this.relation()];const i=this.parent();for(;s&&!i[s];)s=e[s];if(s)return void this.setSelection(0,0,s);if(this.parent().array){const t=Me(this.parent().array);let e=parseInt(this.relation().match(/cell([0-9]*)$/)[1])+1;for(;e=0;){if(Ae(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 s=this.anchor();if(!s.captureSelection){let t;if(s.array){t="";const e=Me(s.array);let i=e-1;for(;!t&&i0)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)}},ke.prototype.up=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseBackward();const s=this.relation();if("denom"===s)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=Se(this.parent().array,s);e=_e(this.parent().array,e,-1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveUp")):this.move(-1,t)}else this._announce("line")},ke.prototype.down=function(t){const e=(t=t||{extend:!1}).extend||!1;this.collapseForward();const s=this.relation();if("numer"===s)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=Se(this.parent().array,s);e=_e(this.parent().array,e,1),e&&Ae(e)?(this.path[this.path.length-1].relation="cell"+we(this.parent().array,e),this.setSelection(this.anchorOffset()),this._announce("moveDown")):this.move(1,t)}else this._announce("line")},ke.prototype.extend=function(t){let e=this.path[this.path.length-1].offset,s=0;const i=ve(this);s=this.extent+t;const a=e+s;if(a<0&&0!==s){if(this.path.length>1)return this.selectionWillChange(),this.path.pop(),this.setExtent(-1),this.selectionDidChange(),void this._announce("move",i);e=this.path[this.path.length-1].offset,s=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",i);this.isCollapsed()&&(e-=1),s-=1}this.setSelection(e,s),this._announce("move",i)},ke.prototype.skip=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=ve(this),a=this.siblings(),o=this.focusOffset();let n=o+t;if(s&&(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),n<0&&!s)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 s="mopen"===e?1:-1;for(n+=t>0?1:-1;n>=0&&n0&&(n-=1)}else{for(;a[n]&&"math"===a[n].mode&&a[n].type===e;)n+=t;n-=t>0?1:0}}if(s){const t=this.anchorOffset();this.setSelection(t,n-t)}else this.setSelection(n);this._announce("move",i)}},ke.prototype.jump=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=t<0?-1:1;const i=this.siblings();let a=this.focusOffset();t>0&&(a=Math.min(a+1,i.length-1));const o=t<0?0:i.length-1;s?this.extend(o-a):this.move(o-a)},ke.prototype.jumpToMathFieldBoundary=function(t,e){const s=(e=e||{extend:!1}).extend||!1;t=(t=t||1)<0?-1:1;const i=ve(this),a=[{relation:"body",offset:this.path[0].offset}];let o;s?t<0?a[0].offset>0&&(o=-a[0].offset):a[0].offset"placeholder"===e.type||t.length>1&&1===this.siblings().length,t);if(0===o.length){if(this.setPath(i,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"])',s=Array.prototype.filter.call(document.querySelectorAll(e),t=>(t.offsetWidth>0||t.offsetHeight>0)&&!t.contains(document.activeElement)||t===document.activeElement);let i=s.indexOf(document.activeElement)+t;i<0&&(i=s.length-1),i>=s.length&&(i=0),s[i].focus()}return this.suppressChangeNotifications=s,!1}return this.selectionWillChange(),this.setPath(o[0]),"placeholder"===this.anchor().type&&this.setExtent(-1),this._announce("move",i),this.selectionDidChange(),this.suppressChangeNotifications=s,!0},ke.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e=i.mode),s+=1,i=this.ancestor(s);return e},ke.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 s=1,i=this.ancestor(s);for(;!e&&i;)i&&(e={color:i.color,backgroundColor:i.backgroundColor,fontFamily:i.fontFamily,fontShape:i.fontShape,fontSeries:i.fontSeries,fontSize:i.fontSize}),s+=1,i=this.ancestor(s);return e},ke.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 s=0,i=0,a=0;for(let o=0;t[e].body[o];o++)"genfrac"===t[e].body[o].type&&(s++,i=o),"first"!==t[e].body[o].type&&a++;0===a&&1===s&&(t[e]=t[e].body[i])}t.forEach(t=>{if("genfrac"===t.type&&(this.simplifyParen(t.numer),this.simplifyParen(t.denom),t.numer=Fe(t.numer),t.denom=Fe(t.denom)),t.superscript&&(this.simplifyParen(t.superscript),t.superscript=Fe(t.superscript)),t.subscript&&(this.simplifyParen(t.subscript),t.subscript=Fe(t.subscript)),t.underscript&&(this.simplifyParen(t.underscript),t.underscript=Fe(t.underscript)),t.overscript&&(this.simplifyParen(t.overscript),t.overscript=Fe(t.overscript)),t.index&&(this.simplifyParen(t.index),t.index=Fe(t.index)),"surd"===t.type?(this.simplifyParen(t.body),t.body=Fe(t.body)):t.body&&Array.isArray(t.body)&&this.simplifyParen(t.body),t.array)for(let e=Me(t.array);e>=0;e--)this.simplifyParen(Ae(t.array,e))})}},ke.prototype.insert=function(t,e){if((e=e||{}).smartFence&&this._insertSmartFence(t,e.style))return;const s=this.suppressChangeNotifications;e.suppressChangeNotifications&&(this.suppressChangeNotifications=!0),this.contentWillChange();const i=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 r=[this.getSelectedAtoms()];void 0!==e.placeholder&&(r["?"]=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 l=this.siblings(),c=this.startOffset();if(c+10&&l[c]&&"placeholder"===l[c].type&&this.delete_(-1),"math"===a&&"ASCIIMath"===e.format)t=De(t,{...this.config,format:"ASCIIMath"}),o=le.parseTokens(n(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)wt.COMMAND_MODE_CHARACTERS.test(e)&&o.push(new Yt.MathAtom("command","command",e))}else""===t?o=[new Yt.MathAtom("command","command","\\")]:(t=De(t,this.config),r[0]?t=t.replace(/(^|[^\\])#@/g,"$1#0"):/(^|[^\\])#@/.test(t)?(t=t.replace(/(^|[^\\])#@/g,"$1#0"),r[0]=this.extractArgBeforeInsertionPoint(),this._deleteAtoms(-r[0].length),Array.isArray(r[0])&&0===r[0].length&&(r[0]=void 0)):t=t.replace(/(^|[^\\])#@/g,"$1#?"),o=le.parseTokens(n(t),a,r,e.macros,e.smartFence),this.simplifyParen(o));else"latex"===e.format?o=le.parseTokens(n(t),a,r,e.macros,e.smartFence):"text"!==a&&"text"!==e.format||(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=(t=t.replace(/\\/g,"\\textbackslash ")).replace(/#/g,"\\#")).replace(/\$/g,"\\$")).replace(/%/g,"\\%")).replace(/&/g,"\\&")).replace(/_/g,"\\_")).replace(/{/g,"\\textbraceleft ")).replace(/}/g,"\\textbraceright ")).replace(/\^/g,"\\textasciicircum ")).replace(/~/g,"\\textasciitilde ")).replace(/£/g,"\\textsterling "),o=le.parseTokens(n(t),"text",r,e.macros,!1));!function t(e,s){e&&s&&(Array.isArray(e)?e.forEach(e=>t(e,s)):"object"==typeof e&&(e.color||e.backgroundColor||e.fontFamily||e.fontShape||e.fontSeries||e.fontSize||(e.applyStyle(s),t(e.body,s),t(e.numer,s),t(e.denom,s),t(e.index,s),t(e.overscript,s),t(e.underscript,s),t(e.subscript,s),t(e.superscript,s))))}(o,e.style);const h=this.parent();if(this.config.removeExtraneousParentheses&&h&&"leftright"===h.type&&"("===h.leftDelim&&function(t){return 0===t.length||1===t.length&&"first"===t[0].type}(h.body)&&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=i,"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=s},ke.prototype._insertSmartFence=function(t,e){const s=this.parent();if("leftright"===s.type&&"|"!==s.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 i=wt.RIGHT_DELIM[t];if(i&&("leftright"!==s.type||"|"!==s.leftDelim)){let s="";const a=this.isCollapsed()||"placeholder"===this.anchor().type;s=this.sibling(0).isFunction?"\\mleft"+t+"\\mright":"\\left"+t+"\\right",s+=a?"?":i;let o=[];return a&&(o=this.siblings().splice(this.anchorOffset()+1,this.siblings().length)),this.insert(s,{mode:"math",format:"latex",style:e}),a&&(this.sibling(0).body=o,this.move(-1)),!0}let a;if(Object.keys(wt.RIGHT_DELIM).forEach(e=>{t===wt.RIGHT_DELIM[e]&&(a=e)}),a){if(s&&"leftright"===s.type&&this.endOffset()===this.siblings().length-1)return this.contentWillChange(),s.rightDelim=t,this.move(1),this.contentDidChange(),!0;const i=this.siblings();let a;for(a=this.endOffset();a>=0&&("leftright"!==i[a].type||"?"!==i[a].rightDelim);a--);if(a>=0)return this.contentWillChange(),i[a].rightDelim=t,i[a].body=i[a].body.concat(i.slice(a+1,this.endOffset()+1)),i.splice(a+1,this.endOffset()-a),this.setSelection(a),this.contentDidChange(),!0;if(s&&"leftright"===s.type&&"?"===s.rightDelim){this.contentWillChange(),s.rightDelim=t;const e=i.slice(this.endOffset()+1);return i.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()===i.length-1?(this.move(1),this._insertSmartFence(t,e)):(this.insert(t,{mode:"math",format:"latex",style:e}),!0)}return!1},ke.prototype.positionInsertionPointAfterCommitedCommand=function(){const t=this.siblings(),e=this.commandOffsets();let s=e.start;for(;s=0;e--)t[e].suggestion&&t.splice(e,1)},ke.prototype.insertSuggestion=function(t,e){this.removeSuggestion();const s=[],i=t.substr(e);for(const a of i){const t=new Yt.MathAtom("command","command",a);t.suggestion=!0,s.push(t)}Array.prototype.splice.apply(this.siblings(),[this.anchorOffset()+1,0].concat(s))},ke.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))},ke.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++},ke.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.row0){let t=e.length;"first"===e[0].type&&(t-=1),t>0&&(s+=1)}i.row+=1}return s}(t,e.col)){!function(t,e){let s=0;for(;s"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!==s.length-1)/^(group|array|genfrac|surd|leftright|overlap|overunder|box|mathstyle|sizing)$/.test(this.sibling(1).type)?this.move(1):(this._announce("delete",null,s.slice(e+1,e+2)),s.splice(e+1,1));else if("numer"===this.relation()){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: numerator")}else this.move(1),this.delete(-1)}else{const 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0===t.deltaX?t.detail:-t.deltaX;isFinite(e)||(e=t.wheelDelta/10),this.field.scroll({top:0,left:this.field.scrollLeft-5*e})},{passive:!1}),this.virtualKeyboardToggleDOMNode=this.element.children[a++].children[1],this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode,{default:"toggleVirtualKeyboard",alt:"toggleVirtualKeyboardAlt",shift:"toggleVirtualKeyboardShift"}),this.ariaLiveText=this.element.children[a].children[0],this.accessibleNode=this.element.children[a++].children[1],this.popover=gi("mathlive-popover-panel","ML__popover"),this.keystrokeCaption=gi("mathlive-keystroke-caption-panel","ML__keystroke-caption"),this.keystrokeCaptionVisible=!1,this.virtualKeyboardVisible=!1,this.keystrokeBuffer="",this.keystrokeBufferStates=[],this.keystrokeBufferResetTimer=null,this.suggestionIndex=0,this.mode=e.defaultMode||"math",this.smartModeSuppressed=!1,this.style={},this.blurred=!0,ui(this.element,"focus",this),ui(this.element,"blur",this),ui(this.textarea,"cut",this),ui(this.textarea,"copy",this),ui(this.textarea,"paste",this),Ne.delegateKeyboardEvents(this.textarea,{container:this.element,allowDeadKey:()=>"text"===this.mode,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)}),window.PointerEvent?ui(this.field,"pointerdown",this):ui(this.field,"touchstart:active 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t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"undo"),this.canCoalesce=!1)}redo(t){this.canRedo()&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"redo"),this.index+=1,this.restore(this.stack[this.index],t),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"redo"),this.canCoalesce=!1)}pop(){this.canUndo()&&(this.index-=1,this.stack.pop())}snapshot(t){this.record&&(t&&"function"===t.onUndoStateWillChange&&t.onUndoStateWillChange(this.mathlist.target,"snapshot"),this.stack.splice(this.index+1,this.stack.length-this.index-1),this.stack.push({latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}),this.index++,this.stack.length>this.maximumDepth&&this.stack.shift(),t&&"function"==typeof t.onUndoStateDidChange&&t.onUndoStateDidChange(this.mathlist.target,"snapshot"),this.canCoalesce=!1)}snapshotAndCoalesce(t){this.canCoalesce&&this.pop(),this.snapshot(t),this.canCoalesce=!0}save(){return{latex:this.mathlist.root.toLatex(),selection:this.mathlist.toString()}}restore(t,e){const s=this.mathlist.suppressChangeNotifications;void 0!==e.suppressChangeNotifications&&(this.mathlist.suppressChangeNotifications=e.suppressChangeNotifications),this.mathlist.insert(t?t.latex:"",{mode:"math",insertionMode:"replaceAll",selectionMode:"after",format:"latex",...e}),this.mathlist.setPath(t?t.selection:[{relation:"body",offset:0}]),this.mathlist.suppressChangeNotifications=s}}(this.mathlist),s.length>0&&this.$latex(s),this.undoManager.startRecording(),this.undoManager.snapshot(this.config)}handleEvent(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(()=>bi(this)&&this._onResize());break;case"cut":this._onCut(t);break;case"copy":this._onCopy(t);break;case"paste":this._onPaste(t)}}$revertToOriginalContent(){this.element.innerHTML=this.originalContent,this.element.mathfield=null,delete 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r=document.createElement("div");r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.left-200+"px",r=document.createElement("div"),r.className="ML__scroller",this.element.appendChild(r),r.style.left=u.right+"px",t.shiftKey?(this.mathlist.setRange(this.mathlist.path,s),s=de.clone(this.mathlist.path),s[s.length-1].offset-=1):this.mathlist.setPath(s,0),o=!0,this.style={},3===t.detail||vi>2?(n(t),3!==t.detail&&3!==vi||this.mathlist.selectAll_()):i||(i=!0,window.PointerEvent?(ui(e.field,"pointermove",h),ui(e.field,"pointerend pointercancel pointerup",n),e.field.setPointerCapture(t.pointerId)):(ui(window,"blur",n),t.touches?(ui(t.target,"touchmove",h),ui(t.target,"touchend",n)):(ui(window,"mousemove",h),ui(window,"mouseup",n))),2!==t.detail&&2!==vi||(a=!0,this.mathlist.selectGroup_()))}}else ki=null;o&&this._requestUpdate(),t.preventDefault()}_onSelectionDidChange(){this.mathlist.commitCommandStringBeforeInsertionPoint();let t="";this.mathlist.forEachSelected(e=>{t+=e.toLatex()}),t?(this.textarea.value=t,this.$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&&(Ze.hidePopover(this),this.mathlist.removeCommandString())}Ze.updatePopoverPosition(this,{deferred:!0}),"function"==typeof this.config.onSelectionDidChange&&this.config.onSelectionDidChange(this)}_onContentDidChange(){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)}_nextAtomSpeechText(t){function 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e=this.keystrokeCaption;if(e&&this.keystrokeCaptionVisible){const s=this.element.getBoundingClientRect();e.style.left=s.left+"px",e.style.top=s.top-64+"px",e.innerHTML=""+(xe.stringify(t)||t)+""+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)}}$perform(t){if(!t)return!1;let e,s=!1,i=[],a=!1;if(Array.isArray(t)?(e=t[0],i=t.slice(1)):e=t,e=e.replace(/-\w/g,t=>t[1].toUpperCase()),e+="_","function"==typeof this.mathlist[e]){if(/^(delete|transpose|add)/.test(e)&&this._resetKeystrokeBuffer(),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&(this.undoManager.pop(),this.undoManager.snapshot(this.config)),this.mathlist[e](...i),/^(delete|transpose|add)/.test(e)&&"command"!==this.mode&&this.undoManager.snapshot(this.config),/^(delete)/.test(e)&&"command"===this.mode){const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);0===e.length?Ze.hidePopover(this):Ze.showPopoverWithLatex(this,e[0].match,e.length>1)}a=!0,s=!0}else"function"==typeof this[e]&&(a=this[e](...i),s=!0);return this.mathlist.isCollapsed()&&!/^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(e)||(this._resetKeystrokeBuffer(),this.style={}),a&&this._requestUpdate(),s}performWithFeedback_(t){return this.$focus(),this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),"moveToNextPlaceholder"===(t=t.replace(/-\w/g,t=>t[1].toUpperCase()))||"moveToPreviousPlaceholder"===t||"complete"===t?this.returnKeypressSound?(this.returnKeypressSound.load(),this.returnKeypressSound.play().catch(t=>{})):this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):"deletePreviousChar"!==t&&"deleteNextChar"!==t&&"deletePreviousWord"!==t&&"deleteNextWord"!==t&&"deleteToGroupStart"!==t&&"deleteToGroupEnd"!==t&&"deleteToMathFieldStart"!==t&&"deleteToMathFieldEnd"!==t||!this.deleteKeypressSound?this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{})):(this.deleteKeypressSound.load(),this.deleteKeypressSound.play().catch(t=>{})),this.$perform(t)}convertLastAtomsToText_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0);let s=0,i=!1;for(this.mathlist.contentWillChange();!i;){const a=this.mathlist.sibling(s);i=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),i||(a.applyStyle({mode:"text"}),a.latex=a.body),s-=1,t-=1}this.mathlist.contentDidChange()}convertLastAtomsToMath_(t,e){"function"==typeof t&&(e=t,t=1/0),void 0===t&&(t=1/0),this.mathlist.contentWillChange();let s=0,i=!1;for(;!i;){const a=this.mathlist.sibling(s);i=0===t||!a||"text"!==a.mode||" "===a.body||e&&!e(a),i||a.applyStyle({mode:"math",type:"mord"}),s-=1,t-=1}this.removeIsolatedSpace_(),this.mathlist.contentDidChange()}removeIsolatedSpace_(){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}}getTextBeforeAnchor_(){let t="",e=0,s=!1;for(;!s;){const i=this.mathlist.sibling(e);s=!(i&&("text"===i.mode&&!i.type||"math"===i.mode&&/mord|textord|mpunct/.test(i.type))),s||(t=i.body+t),e-=1}return t}smartMode_(t,e){if(this.smartModeSuppressed)return!1;if(this.mathlist.endOffset()1)return!1;if(!this.mathlist.isCollapsed())return!("text"!==this.mode||!/[/_^]/.test(s));const i=this.getTextBeforeAnchor_()+s;if("text"===this.mode){if("Esc"===t||/[/\\]/.test(s))return!0;if(/[\^_]/.test(s))return/(^|\s)[a-zA-Z][^_]$/.test(i)&&this.convertLastAtomsToMath_(1),!0;const e={")":"(","}":"{","]":"["}[s];if(e&&this.mathlist.parent()&&"leftright"===this.mathlist.parent().type&&this.mathlist.parent().leftDelim===e)return!0;if(/(^|[^a-zA-Z])(a|I)[ ]$/.test(i))return!1;if(/[$€£₤₺¥¤฿¢₡₧₨₹₩₱]/u.test(s))return!0;if(/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(i))return this.convertLastAtomsToMath_(1),!1;if(/[^0-9]\.[^0-9\s]$/.test(i)){this.convertLastAtomsToMath_(1);const t=this.mathlist.sibling(0);return t.body="⋅",t.autoFontFamily="cmr",t.latex="\\cdot",!0}if(/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/\.[0-9]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][0-9+\-.]$/.test(i))return this.convertLastAtomsToMath_(1),!0;if(/[(][a-z][,;]$/.test(i))return this.convertLastAtomsToMath_(2),!0;if(/[0-9+\-=><*|]$/.test(s))return this.removeIsolatedSpace_(),!0}else{if("Spacebar"===t)return this.convertLastAtomsToText_(t=>/[a-z][:,;.]$/.test(t.body)),!0;if(/[a-zA-Z]{3,}$/.test(i)&&!/(dxd|abc|xyz|uvw)$/.test(i))return this.convertLastAtomsToText_(t=>/[a-zA-Z:,;.]/.test(t.body)),!0;if(/(^|\W)(if|If)$/i.test(i))return this.convertLastAtomsToText_(1),!0;if(/(\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5){3,}$/u.test(i)&&!/(αβγ)$/.test(i))return this.convertLastAtomsToText_(t=>/(:|,|;|.|\u0393|\u0394|\u0398|\u039b|\u039E|\u03A0|\u03A3|\u03a5|\u03a6|\u03a8|\u03a9|[\u03b1-\u03c9]|\u03d1|\u03d5|\u03d6|\u03f1|\u03f5)/u.test(t.body)),!0;if(/\?|\./.test(s))return!0}return!1}_onKeystroke(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 s,i,a,o=!1;if("command"!==this.mode&&(!e||!e.ctrlKey&&!e.metaKey)){const t=Ne.eventToChar(e);if("Backspace"!==t)if(!t||t.length>1)this._resetKeystrokeBuffer();else{const e=this.keystrokeBuffer+t;let a=0;for(;!s&&a{this._resetKeystrokeBuffer()},this.config.inlineShortcutTimeout))}}if(this.config.smartMode){const i=this.mode;s?this.mode="math":this.smartMode_(t,e)&&(this.mode={math:"text",text:"math"}[this.mode],a=""),this.mode!==i&&"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode)}if(s||a||(a=xe.selectorForKeystroke(this.mode,t)),!s&&!a)return!0;if(this.config.readOnly&&"insert"===a[0])return!0;this.mathlist.decorateCommandStringAroundInsertionPoint(!1);const r=this.mathlist.parent();if("moveAfterParent"===a&&r&&"leftright"===r.type&&this.mathlist.endOffset()===this.mathlist.siblings().length-1&&this.config.smartFence&&this.mathlist._insertSmartFence(".")&&(a="",this._requestUpdate()),"math"===this.mode&&"Spacebar"===t&&!s){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.$perform(a)||s)&&s){if(!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(s)){const t={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(Ne.eventToChar(e),{suppressChangeNotifications:!0,mode:this.mode,style:t});const s=this.mode;this.undoManager.snapshotAndCoalesce(this.config),this.undoManager.restore(this.keystrokeBufferStates[i],{...this.config,suppressChangeNotifications:!0}),this.mode=s}this.mathlist.contentWillChange();const t=this.mathlist.suppressChangeNotifications;this.mathlist.suppressChangeNotifications=!0;const a={...this.mathlist.anchorStyle(),...this.style};this.mathlist.insert(s,{format:"latex",mode:this.mode,style:a,smartFence:!0}),this.removeIsolatedSpace_(),s.endsWith(" ")&&(this.mode="text",this.mathlist.insert(" ",{mode:"text",style:a})),this.mathlist.suppressChangeNotifications=t,this.mathlist.contentDidChange(),this.undoManager.snapshot(this.config),this._requestUpdate(),this._announce("replacement"),o&&this._resetKeystrokeBuffer()}return this.scrollIntoView(),e&&e.preventDefault&&(e.preventDefault(),e.stopPropagation()),!1}_onTypedText(t,e){if(this.config.readOnly)return void this._announce("plonk");if((e=e||{}).focus&&this.$focus(),e.feedback&&(this.config.keypressVibration&&navigator.vibrate&&navigator.vibrate(3),this.keypressSound&&(this.keypressSound.load(),this.keypressSound.play().catch(t=>{}))),e.commandMode&&"command"!==this.mode&&this.switchMode_("command"),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),e.simulateKeystroke){const e=t.charAt(0),s=Ne.charToEvent(e);if(!this.$keystroke(Ne.keyboardEventToString(s),s))return}let s="",a=!1;if(this.pasteInProgress)this.pasteInProgress=!1,this.mathlist.insert(t,{smartFence:this.config.smartFence,mode:"math"});else{const e={...this.mathlist.anchorStyle(),...this.style},o=i(t);for(const t of o)if("command"===this.mode){this.mathlist.removeSuggestion(),this.suggestionIndex=0;const e=this.mathlist.extractCommandStringAroundInsertionPoint(),i=wt.suggest(e+t);a=i.length>1,0===i.length?(this.mathlist.insert(t,{mode:"command"}),/^\\[a-zA-Z\\*]+$/.test(e+t)&&this.mathlist.decorateCommandStringAroundInsertionPoint(!0),Ze.hidePopover(this)):(this.mathlist.insert(t,{mode:"command"}),i[0].match!==e+t&&this.mathlist.insertSuggestion(i[0].match,-i[0].match.length+e.length+1),s=i[0].match)}else if("math"===this.mode){const s={"^":"moveToSuperscript",_:"moveToSubscript"," ":"moveAfterParent"}[t];if(s){if("moveToSuperscript"===s){if(this._superscriptDepth()>=this.config.scriptDepth[1])return void this._announce("plonk")}else if("moveToSubscript"===s&&this._subscriptDepth()>=this.config.scriptDepth[0])return void this._announce("plonk");this.$perform(s)}else this.config.smartSuperscript&&"superscript"===this.mathlist.relation()&&/[0-9]/.test(t)&&0===this.mathlist.siblings().filter(t=>"first"!==t.type).length?(this.mathlist.insert(t,{mode:"math",style:e}),this.mathlist.moveAfterParent_()):this.mathlist.insert(t,{mode:"math",style:e,smartFence:this.config.smartFence})}else"text"===this.mode&&this.mathlist.insert(t,{mode:"text",style:e})}"command"!==this.mode&&this.undoManager.snapshotAndCoalesce(this.config),this._requestUpdate(),this.scrollIntoView(),Ze.showPopoverWithLatex(this,s,a)}_hash(){let t=0;const e=this.mathlist.root.toLatex(!1);for(let s=0;sbi(this)&&this._render()))}_render(t){t=t||{},this.dirty=!1,window.mathlive||(window.mathlive={}),this.mathlist.anchor()||(this.mathlist.path=[{relation:"body",offset:0}]),this.mathlist.forEach(t=>{t.caret="",t.isSelected=!1,t.containsCaret=!1});const e=this.$hasFocus();if(this.mathlist.isCollapsed()?this.mathlist.anchor().caret=e&&!this.config.readOnly?this.mode:"":this.mathlist.forEachSelected(t=>{t.isSelected=!0}),e&&!this.config.readOnly){let t=this.mathlist.ancestor(1),e=1,s=!1;for(;t&&!s;)"surd"!==t.type&&"leftright"!==t.type||(t.containsCaret=!0,s=!0),e+=1,t=this.mathlist.ancestor(e)}const s=Yt.decompose({mathstyle:"displaystyle",generateID:{seed:this._hash(),groupNumbers:t.forHighlighting},macros:this.config.macros},this.mathlist.root),i=N.makeSpan(s,"ML__base");i.attributes={translate:"no","aria-hidden":"true"};const a=N.makeSpan("","ML__strut");a.setStyle("height",i.height,"em");const o=[a];if(0!==i.depth){const t=N.makeSpan("","ML__strut--bottom");t.setStyle("height",i.height+i.depth,"em"),t.setStyle("vertical-align",-i.depth,"em"),o.push(t)}o.push(i);const n=N.makeSpan(o,"ML__mathlive");this.field.innerHTML=n.toMarkup(0,this.config.horizontalSpacingScale),this.field.classList.toggle("ML__focused",e&&!this.config.readOnly),this.accessibleNode.innerHTML=""+Yt.toMathML(this.mathlist.root,this.config)+"";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])}}_onPaste(){return this.pasteInProgress=!0,!0}_onCut(){return setTimeout(function(){this.$clearSelection(),this._requestUpdate()}.bind(this),0),!0}_onCopy(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()}formatMathlist(t,e){let s="";if("latex"===(e=e||"latex")||"latex-expanded"===e)s=t.toLatex("latex-expanded"===e);else if("mathML"===e)s=t.toMathML(this.config);else if("spoken"===e)s=Yt.toSpeakableText(t,this.config);else if("spoken-text"===e){const e=this.config.textToSpeechMarkup;this.config.textToSpeechMarkup="",s=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=e}else if("spoken-ssml"===e||"spoken-ssml-withHighlighting"===e){const i=this.config.textToSpeechMarkup,a=this.config.generateID;this.config.textToSpeechMarkup="ssml","spoken-ssml-withHighlighting"===e&&(this.config.generateID=!0),s=Yt.toSpeakableText(t,this.config),this.config.textToSpeechMarkup=i,this.config.generateID=a}else if("json"===e){const e=Yt.toAST(t,this.config);s=JSON.stringify(e)}else"ASCIIMath"===e&&(s=function t(e,s){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 i=0;for(s='"';e[i]&&"text"===e[i].mode;)s+=e[i].body,i++;s+='"'+t(e.slice(i))}else{let i=0;for(;e[i]&&"math"===e[i].mode;)s+=t(e[i]),i++;s+=t(e.slice(i))}return s.trim()}if("text"===e.mode)return'"'+e.body+'"';let i="";const a=e.latex?e.latex.trim():null;let o;switch(e.type){case"group":case"root":i=t(e.body);break;case"array":break;case"genfrac":(e.leftDelim||e.rightDelim)&&(i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:"),e.hasBarLine?(i+="(",i+=t(e.numer),i+=")/(",i+=t(e.denom),i+=")"):(i+="("+t(e.numer)+"),",i+="("+t(e.denom)+")"),(e.leftDelim||e.rightDelim)&&(i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:");break;case"surd":e.index?i+="root("+t(e.index)+")("+t(e.body)+")":i+="sqrt("+t(e.body)+")";break;case"leftright":i+="."!==e.leftDelim&&e.leftDelim?e.leftDelim:"{:",i+=t(e.body),i+="."!==e.rightDelim&&e.rightDelim?e.rightDelim:"{:";break;case"sizeddelim":case"delim":case"accent":break;case"line":case"overlap":case"overunder":break;case"mord":i=ls[a]||a||("string"==typeof e.body?e.body:""),"\\"===i[0]&&(i+=""),o=a?a.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/):null,o?i=String.fromCharCode(parseInt("0x"+o[1])):i.length>0&&"\\"===i.charAt(0)&&(i="string"==typeof e.body?e.body.charAt(0):e.latex);break;case"mbin":case"mrel":case"textord":case"minner":i=a&&ls[a]?ls[a]:a&&cs[a]?cs[a]:e.body;break;case"mopen":case"mclose":i+=e.body;break;case"mpunct":i=cs[a]||a;break;case"mop":"​"!==e.body&&(i="",i+="\\operatorname"===a?t(e.body):e.body||a,i+=" ");break;case"mathstyle":case"box":case"spacing":case"enclose":break;case"space":i=" "}if(e.subscript){i+="_";const s=t(e.subscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}if(e.superscript){i+="^";const s=t(e.superscript);s.length>1&&!/^(-)?\d+(\.\d*)?$/.test(s)?i+="("+s+")":i+=s}return i}(t,this.config));return s}$text(t){return this.formatMathlist(this.mathlist.root,t)}$selectedText(t){const e=this.mathlist.getSelectedAtoms();if(!e)return"";const s=Yt.makeRoot("math",e);return this.formatMathlist(s,t)}$selectionIsCollapsed(){return this.mathlist.isCollapsed()}$selectionDepth(){return this.mathlist.path.length}_superscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!0:s.subscript&&(i=!1),e+=1,s=this.mathlist.ancestor(e);return i?t:0}_subscriptDepth(){let t=0,e=0,s=this.mathlist.ancestor(e),i=!1;for(;s;)(s.superscript||s.subscript)&&(t+=1),s.superscript?i=!1:s.subscript&&(i=!0),e+=1,s=this.mathlist.ancestor(e);return i?t:0}$selectionAtStart(){return 0===this.mathlist.startOffset()}$selectionAtEnd(){return this.mathlist.endOffset()>=this.mathlist.siblings().length-1}groupIsSelected(){return 0===this.mathlist.startOffset()&&this.mathlist.endOffset()>=this.mathlist.siblings().length-1}$latex(t,e){return t?(t!==this.mathlist.root.toLatex()&&(e=e||{},this.mathlist.insert(t,Object.assign({},this.config,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",mode:"math",suppressChangeNotifications:e.suppressChangeNotifications})),this.undoManager.snapshot(this.config),this._requestUpdate()),t):this.mathlist.root.toLatex()}$el(){return this.element}undo(){return this.complete_(),this.undoManager.undo(this.config),!0}redo(){return this.complete_(),this.undoManager.redo(this.config),!0}scrollIntoView(){this.dirty&&this._render();let t=this._getCaretPosition();const e=this.field.getBoundingClientRect();if(!t){const s=this._getSelectionBounds();s&&(t={x:s.right+e.left-this.field.scrollLeft,y:s.top+e.top-this.field.scrollTop})}if(t){const s=t.x-window.scrollX;se.right&&this.field.scroll({top:0,left:s-e.right+this.field.scrollLeft+20,behavior:"smooth"})}}scrollToStart(){this.field.scroll(0,0)}scrollToEnd(){const t=this.field.getBoundingClientRect();this.field.scroll(t.left-window.scrollX,0)}enterCommandMode_(){this.switchMode_("command")}copyToClipboard_(){return this.$focus(),this.mathlist.isCollapsed()&&this.$select(),document.execCommand("copy"),!1}cutToClipboard_(){return this.$focus(),document.execCommand("cut"),!0}pasteFromClipboard_(){return this.$focus(),document.execCommand("paste"),!0}$insert(t,e){if("string"==typeof t&&t.length>0){if((e=e||{}).focus&&this.$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 s=this.style;this.mathlist.insert(t,{mode:this.mode,style:this.mathlist.anchorStyle(),...e}),e.resetStyle&&(this.style=s)}return this.undoManager.snapshot(this.config),this._requestUpdate(),!0}return!1}switchMode_(t,e,s){this._resetKeystrokeBuffer(),this.smartModeSuppressed=/text|math/.test(this.mode)&&/text|math/.test(t),e&&this.$insert(e,{format:"latex",mode:{math:"text",text:"math"}[t]}),this.mathlist.decorateCommandStringAroundInsertionPoint(!1),"command"===t?(this.mathlist.removeSuggestion(),Ze.hidePopover(this),this.suggestionIndex=0,this.virtualKeyboardVisible&&this.switchKeyboardLayer_("lower-command"),this.mathlist.insert("",{mode:"math"})):this.mode=t,s&&this.$insert(s,{format:"latex",mode:t}),"function"==typeof this.config.onModeChange&&this.config.onModeChange(this,this.mode),this._requestUpdate()}complete_(t){if(t=t||{},Ze.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(wt.commandAllowed(t,e)){const s=le.parseTokens(n(e),t,null,this.config.macros);this.mathlist.spliceCommandStringAroundInsertionPoint(s)}else{const s=le.parseTokens(n(e),t,null,this.config.macros);s?this.mathlist.spliceCommandStringAroundInsertionPoint(s):this.mathlist.decorateCommandStringAroundInsertionPoint(!0)}}return this.undoManager.snapshot(this.config),this._announce("replacement"),!0}return!1}_updateSuggestion(){this.mathlist.positionInsertionPointAfterCommitedCommand(),this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);if(0===e.length)Ze.hidePopover(this),this.mathlist.decorateCommandStringAroundInsertionPoint(!0);else{const s=this.suggestionIndex%e.length,i=t.length-e[s].match.length;0!==i&&this.mathlist.insertSuggestion(e[s].match,i),Ze.showPopoverWithLatex(this,e[s].match,e.length>1)}this._requestUpdate()}nextSuggestion_(){return this.suggestionIndex+=1,this._updateSuggestion(),!1}previousSuggestion_(){if(this.suggestionIndex-=1,this.suggestionIndex<0){this.mathlist.removeSuggestion();const t=this.mathlist.extractCommandStringAroundInsertionPoint(),e=wt.suggest(t);this.suggestionIndex=e.length-1}return this._updateSuggestion(),!1}_attachButtonHandlers(t,e){const s=this;let i,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)),ui(t,"mousedown touchstart:passive",(function(e){if("mousedown"!==e.type||1===e.buttons){e.stopPropagation(),e.preventDefault(),t.classList.add("pressed"),i=Date.now(),"touchstart"===e.type&&(o=e.changedTouches[0].identifier);const n=t.getAttribute("data-"+s.config.namespace+"command-pressed");n&&s.$perform(JSON.parse(n));const l=t.getAttribute("data-"+s.config.namespace+"command-pressAndHoldStart");l&&(a=t,r&&clearTimeout(r),r=window.setTimeout((function(){t.classList.contains("pressed")&&s.$perform(JSON.parse(l))}),300))}})),ui(t,"mouseleave touchcancel",(function(){t.classList.remove("pressed")})),ui(t,"touchmove:passive",(function(t){t.preventDefault();for(let e=0;e=7?s.style.width="286px":4===e.length||2===e.length?s.style.width="146px":1===e.length?s.style.width="86px":s.style.width="146px",s.style.height="auto";let i="";for(const o of e)i+="";i="
      "+i+"
    ",s.innerHTML=i,rs.makeKeycap(this,s.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-s.clientHeight<0&&(s.style.width="auto",e.length<=6?s.style.height="56px":e.length<=12?s.style.height="108px":s.style.height="205px");const t=(a.top-s.clientHeight+5).toString()+"px",i=Math.max(0,Math.min(window.innerWidth-s.offsetWidth,(a.left+a.right-s.offsetWidth)/2))+"px";s.style.transform="translate("+i+","+t+")",s.classList.add("is-visible")}return!1}hideAlternateKeys_(){const t=document.getElementById("mathlive-alternate-keys-panel");return t&&(t.classList.remove("is-visible"),t.innerHTML="",yi(t)),!1}performAlternateKeys_(t){return this.hideAlternateKeys_(),this.$perform(t)}switchKeyboardLayer_(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 s=!1;for(let i=0;i=1){s=[];for(let t=1;t<=i;t++)s.push(e[t])}break}case"right":{const e=t.mathlist.siblings(),i=t.mathlist.endOffset()+1;if(i<=e.length-1){s=[];for(let t=i;t<=e.length-1;t++)s.push(e[t])}break}case"start":case"end":break;case"group":s=t.mathlist.siblings();break;case"parent":{const e=t.mathlist.parent();e&&"root"!==e.type&&(s=t.mathlist.parent());break}}return s}(this,t);if(null===s)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 i={...this.config};(e.withHighlighting||"amazon"===i.speechEngine)&&(i.textToSpeechMarkup=window.sre&&"sre"===i.textToSpeechRules?"ssml_step":"ssml",e.withHighlighting&&(i.generateID=!0));const a=Yt.toSpeakableText(s,i);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,i),!1}}let ki,vi=0;function wi(t,e,s){const i=Object.assign({},t.config);return i.textToSpeechMarkup="",i.textToSpeechRulesOptions=i.textToSpeechRulesOptions||{},i.textToSpeechRulesOptions.markup="none",e+Yt.toSpeakableText(s,i)}function Si(t,e,s,i){let a="";"plonk"===e?(t.plonkSound&&(t.plonkSound.load(),t.plonkSound.play().catch(t=>{})),t._resetKeystrokeBuffer()):"delete"===e?a=wi(t,"deleted: ",i):"focus"===e||/move/.test(e)?a=(t.mathlist.isCollapsed()?"":"selected: ")+t._nextAtomSpeechText(s):"replacement"===e?a=wi(t,"",t.mathlist.sibling(0)):"line"===e?(a=wi(t,"",t.mathlist.root),t.accessibleNode.innerHTML=''+Yt.toMathML(t.mathlist.root,t.config)+"",t.textarea.setAttribute("aria-label","after: "+a)):a=i?wi(t,e+" ",i):e;const o=/\u00a0/.test(t.ariaLiveText.textContent)?"   ":"   ";t.ariaLiveText.textContent=a+o}xi.prototype.undo_=xi.prototype.undo,xi.prototype.redo_=xi.prototype.redo,xi.prototype.scrollIntoView_=xi.prototype.scrollIntoView,xi.prototype.scrollToStart_=xi.prototype.scrollToStart,xi.prototype.scrollToEnd_=xi.prototype.scrollToEnd,xi.prototype.insert_=xi.prototype.$insert;var Ai={isValidMathfield:bi,MathField:xi};function Mi(t,e,s){let i=s,a=0;const o=t.length;for(;i0&&a.push({type:"text",data:n.slice(0,c)}),l=!1);let h=!1;for(;!h;){if(l){if(r=n.indexOf(e,c),-1===r){h=!0;break}c!==r&&a.push({type:"text",data:n.slice(c,r)}),c=r}else{if(r=Mi(s,n,c+e.length),-1===r){h=!0;break}a.push({type:"math",data:n.slice(c+e.length,r),rawData:n.slice(c,r+s.length),mathstyle:i}),c=r+s.length}l=!l}c"+e.renderToMathML(t,e)+""}catch(i){s.textContent=t}return s.className="sr-only",s}(t,s)),/\bspeakable-text\b/i.test(s.renderAccessibleContent)&&s.renderToSpeakableText){const i=document.createElement("span");i.innerHTML=s.renderToSpeakableText(t,s),i.className="sr-only",e.appendChild(i)}return e.appendChild(a),e}return a}function Li(t,e){let s=null;if(e.TeX.processEnvironments&&/^\s*\\begin/.test(t))s=document.createDocumentFragment(),s.appendChild(Ti(t,void 0,e,!0));else{const i=_i(t,e.TeX.delimiters);if(1===i.length&&"text"===i[0].type)return null;s=document.createDocumentFragment();for(let t=0;t{})}}))}}else e.speechEngine;else{const e=new SpeechSynthesisUtterance(t);window&&window.speechSynthesis.speak(e)}}function Pi(t,e,s){if(!window)return;if(!s&&window.mathlive&&(s=window.mathlive.config),"amazon"!==(s=s||{}).speechEngine)return void(s.handleSpeak&&s.handleSpeak(e));if(!window.AWS)return;const i=new window.AWS.Polly({apiVersion:"2016-06-10"}),a={OutputFormat:"json",VoiceId:s.speechEngineVoice||"Joanna",Text:e,TextType:"ssml",SpeechMarkTypes:["ssml"]};window.mathlive=window.mathlive||{},window.mathlive.readAloudElement=t;const o=s.onReadAloudStatus||window.mathlive.onReadAloudStatus;i.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 e of window.mathlive.readAloudMarks)e.value&&window.mathlive.readAloudTokens.push(e.value);window.mathlive.readAloudCurrentMark="",a.OutputFormat="mp3",a.SpeechMarkTypes=[],i.synthesizeSpeech(a,(function(t,e){if(t);else if(e&&e.AudioStream){const t=new Uint8Array(e.AudioStream),s=new Blob([t.buffer],{type:"audio/mpeg"}),i=URL.createObjectURL(s);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 s of window.mathlive.readAloudMarks)s.time0&&Array.from(e.children).forEach(e=>{t(e,s)})):(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=i,o&&o(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()}}))}}))}function Bi(t){let e=t;if("string"==typeof t&&(e=document.getElementById(t),!e))throw Error(`The element with ID "${t}" could not be found.`);return e}function Oi(t,e){Di&&((e=e||{}).renderToMarkup=e.renderToMarkup||zi,e.renderToMathML=e.renderToMathML||Ei,e.renderToSpeakableText=e.renderToSpeakableText||qi,e.macros=e.macros||wt.MACROS,Di.renderMathInElement(Bi(t),e))}function $i(t){if(t.namespace){if(!/^[a-z]+[-]?$/.test(t.namespace))throw Error("options.namespace must be a string of lowercase characters only");/-$/.test(t.namespace)||(t.namespace+="-")}}const Ri={latexToMarkup:zi,latexToMathML:Ei,latexToSpeakableText:qi,latexToAST:function(t,e){if(!Yt.toAST)return{};(e=e||{}).macros=e.macros||{},Object.assign(e.macros,wt.MACROS);const s=le.parseTokens(n(t),"math",null,e.macros);return Yt.toAST(s,e)},astToLatex:function(t,e){return hi(t,e)},makeMathField:function(t,e){if(!Ai)throw Error("The MathField module is not loaded.");return(e=e||{}).handleSpeak=e.handleSpeak||Ii,e.handleReadAloud=e.handleReadAloud||Pi,new Ai.MathField(Bi(t),e)},renderMathInDocument:function(t){Oi(document.body,t)},renderMathInElement:Oi,revertToOriginalContent:function(t,e){(t=(t=Bi(t)).children[1])instanceof Ai.MathField?t.revertToOriginalContent():($i(e=e||{}),t.innerHTML=t.getAttribute("data-"+(e.namespace||"")+"original-content"))},getOriginalContent:function(t,e){return(t=(t=Bi(t)).children[1])instanceof Ai.MathField?t.originalContent:($i(e=e||{}),t.getAttribute("data-"+(e.namespace||"")+"original-content"))},readAloud:Pi,readAloudStatus:function(){return window?(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio?window.mathlive.readAloudAudio.paused?"paused":window.mathlive.readAloudAudio.ended?"ready":"playing":"ready"):"unavailable"},pauseReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"paused"),window.mathlive.readAloudAudio.pause()))},resumeReadAloud:function(){window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio&&(window.mathlive.onReadAloudStatus&&window.mathlive.onReadAloudStatus(window.mathlive.readAloudMathField,"playing"),window.mathlive.readAloudAudio.play()))},playReadAloud:function(t,e){if(window&&(window.mathlive=window.mathlive||{},window.mathlive.readAloudAudio)){let s=0;if(window.mathlive.readAloudFinalToken=null,t){window.mathlive.readAloudMarks=window.mathlive.readAloudMarks||[];for(const e of window.mathlive.readAloudMarks)e.value===t&&(s=e.time/1e3);let i=window.mathlive.readAloudTokens.indexOf(t);i>=0&&(i+=e,i`|'$%#&^_" ] // 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 const LETTER = - // typeof navigator !== 'undefined' && - // /firefox|edge/i.test(navigator.userAgent) ? - /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; -// : new RegExp('\\p{Letter}', 'u'); + // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ? + /[a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // : + // new RegExp("\\p{Letter}", 'u'); const LETTER_AND_DIGITS = - // typeof navigator !== 'undefined' && - // /firefox|edge/i.test(navigator.userAgent) ? - /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; -// : new RegExp('[0-9\\p{Letter}]', 'u'); + // typeof navigator !== 'undefined' && /firefox/i.test(navigator.userAgent) ? + /[0-9a-zA-ZаАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяĄąĆćĘꣳŃńÓ󌜏źŻżàâäôéèëêïîçùûüÿæœÀÂÄÔÉÈËÊÏΟÇÙÛÜÆŒäöüßÄÖÜẞàèéìíîòóùúÀÈÉÌÍÎÒÓÙÚáéíñóúüÁÉÍÑÓÚÜ]/; // : + // new RegExp("[0-9\\p{Letter}]", 'u'); export default { matchCodepoint, diff --git a/dist/src/editor/editor-mathfield.js b/dist/src/editor/editor-mathfield.js index f7fb359fc..2b59fc7c5 100644 --- a/dist/src/editor/editor-mathfield.js +++ b/dist/src/editor/editor-mathfield.js @@ -1000,8 +1000,6 @@ class MathField { if (typeof this.config.onSelectionDidChange === 'function') { this.config.onSelectionDidChange(this); } - this.removeIsolatedSpace_(); - this.mathlist.contentDidChange(); } _onContentDidChange() { if (this.undoManager.canRedo()) { @@ -2715,18 +2713,18 @@ class MathField { * is used (default) * * @param {object} options.style - * + * * @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. * * @param {boolean} 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`. - * + * * @category Changing the Content * @method MathField#$insert */ diff --git a/examples/basic/index.esm.html b/examples/basic/index.esm.html index 753b66c31..60aee5a89 100644 --- a/examples/basic/index.esm.html +++ b/examples/basic/index.esm.html @@ -25,7 +25,7 @@

    MathLive Basic Example

    Return to the homepage  -
    - The popover panel - A Virtual Keyboard
    - The Loop Equation