diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 000000000..212566614 --- /dev/null +++ b/.gitattributes @@ -0,0 +1 @@ +* text=auto \ No newline at end of file diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml new file mode 100644 index 000000000..fe3c1c22b --- /dev/null +++ b/.github/FUNDING.yml @@ -0,0 +1,4 @@ +# These are supported funding model platforms + +patreon: arnog +custom: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=CCB2LY5M6SM5W&source=url diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md index cb4ccf9df..4b4035e1f 100644 --- a/.github/ISSUE_TEMPLATE/bug_report.md +++ b/.github/ISSUE_TEMPLATE/bug_report.md @@ -7,23 +7,35 @@ assignees: '' --- +**Funding** +> If you're using MathLive consider donating to project development via [Patreon](https://patreon.com/arnog) (recurring donation) or [PayPal](https://www.paypal.me/arnogourdol) (one time donation). + +> Issues submitted by funding partners are given higher priority. + +> We welcome both individual and corporate sponsors. In addition to Patreon and PayPal, we can also accept short-term development contracts for specific features or maintenance of the project. + + **Describe the bug** A clear and concise description of what the bug is. **To Reproduce** -Steps to reproduce the behavior: -1. Go to '...' -2. Click on '....' -3. Scroll down to '....' -4. See error +[Steps to reproduce the behavior, for example:] +1. [Go to '...'] +2. [Click on '....'] +3. [Scroll down to '....'] +4. [See error] **Expected behavior** -A clear and concise description of what you expected to happen. +[A clear and concise description of what you expected to happen.] [Is this a regression: did it use to work in a previous version?] **Screenshots** -If applicable, add screenshots to help explain your problem. +[If applicable, add screenshots to help explain your problem.] + +**Source Code** +[If applicable, provide a code sample demonstrating the issue. Use JSFiddle, CodePen or similar to provide a relevant snippet.] + **Environment** - Device: [pc, mac, iPhone, Android...] diff --git a/.npmrc b/.npmrc index 033cca1f5..7394de28d 100644 --- a/.npmrc +++ b/.npmrc @@ -1 +1 @@ -loglevel="silent" \ No newline at end of file +loglevel="warn" \ No newline at end of file diff --git a/.travis.yml b/.travis.yml index 892d6d1a2..b9875fd20 100644 --- a/.travis.yml +++ b/.travis.yml @@ -1,8 +1,13 @@ language: node_js node_js: - lts/* +before_install: +- '[[ $(node -v) =~ ^v9.*$ ]] || npm install -g npm@latest' # skipped when using node 9 +- npm install -g greenkeeper-lockfile install: -- npm ci +- npm install +before_script: greenkeeper-lockfile-update +after_script: greenkeeper-lockfile-upload cache: directories: - node_modules diff --git a/CHANGELOG.md b/CHANGELOG.md index 5c4e854f6..3630323d8 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,3 +1,39 @@ +## 0.30.1 (July 30, 2019) + +### Features / Improvements +- Added Typescript type definition + +## 0.30 (July 18, 2019) + +### Non-backward compatible changes + +- #157: Public APIs that don't start with `$` have been removed. If your code +used any of these APIs, add a `$` in front of their name. See #157 for the +complete list. + +### Features / Improvements + +- #231: `smartMode` now supports Greek (the language). Also, Greek localization. +- Don't display i-beam cursor over non-interactive content +- Use CSS class `.ML__smart-fence__close` to style closing smart fence +- Added speech support for text mode and units (contributed by @NSoiffer) + +### Bug Fixes +- Fixed an issue where clicking past the end of the equation would select the +numerator or denominator if the last element was a fraction, instead of place +the cursor after the fraction (regression) +- Removed dependency on open-cli +- #220 Fixed an issue where tabbing out of a mathfield would break command mode and some functions +- #209, #214, #211 et. al. Improvements to SSML support and karaoke mode contributed by @NSoiffer +- #217 Fixed an issue with parentheses in numerator of fractions +- #212: Fix round-tripping of `\mathbb` +- #194: When using the virtual keyboard, interpolate `#@` +- Fixed an issue where "(" was incorrectly gobbled as argument to a fraction +- Fixed an issue where smartFence off was ignored +- #202: use numeric character references instead of named entities in MathML output + + + ## 0.29.1 (May 19, 2019) ### Bug fixes diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index 45c2ee8bc..171d5a241 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -1,7 +1,17 @@ # Contributing to MathLive -There are many ways you can get involved with MathLive. Contributing to -an open source project is fun and rewarding. +There are many ways you can get involved with MathLive. Contributing to an open source project is fun and rewarding. + +## Funding + +If you're using MathLive consider donating to project development via [Patreon](https://patreon.com/arnog) (recurring donation) or [PayPal](https://www.paypal.me/arnogourdol) (one time donation). + +If you are using MathLive in your project, encourage the business partners in your organization to provide financial support of open source projects. + +Funds go to general development, support, and infrastructure costs. + +We welcome both individual and corporate sponsors. In addition to Patreon and PayPal, we can also accept short-term development contracts for specific features or maintenance of the project. + ## Contributing Issues diff --git a/README.md b/README.md index 61e797b74..ee9178aac 100644 --- a/README.md +++ b/README.md @@ -55,11 +55,11 @@ Global changes : MathLive is a JavaScript library to render and edit math. -- [x] Tex-quality typesetting +- [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] Outputs **LaTeX**, **MathML** and **JSON** (Abstract Syntax Tree, MASTON)** +- [x] Outputs **LaTeX**, **MathML** and **JSON** (Abstract Syntax Tree, MASTON) - [x] And it is easy to customize to your needs! Try it at [mathlive.io](https://mathlive.io) @@ -90,23 +90,23 @@ Try it at [mathlive.io](https://mathlive.io) ## How To Use MathLive -### To display math -You can use MathLive to simply render math equations by +### Displaying Math +Render math equations by [adding a few lines to your web page](tutorials/USAGE_GUIDE.md). ```html ... - - - + +

Euler's Identity

$$e^{i\pi} + 1 = 0$$

- @@ -114,7 +114,7 @@ You can use MathLive to simply render math equations by ``` -### To edit math +### Editing Math You can also incorporate a “math field” to edit math just like you would edit text. The MathLive APIs allow you to interact with the math field, including extracting its content, inserting placeholders and more. @@ -137,7 +137,7 @@ including extracting its content, inserting placeholders and more. ``` -### More examples +### More Examples More examples are available at https://mathlive.io/deploy/examples/ @@ -160,6 +160,9 @@ This will make a local build of MathLive, run a local HTTP server and open a pag ## How You Can Help +* Using MathLive in your project? Want to support the project ongoing maintenance? +Consider becoming a patron on [Patreon](https://patreon.com/arnog) or making a +donation with [PayPal](https://www.paypal.me/arnogourdol) * Something wrong? Got ideas for new features? Write up an issue. Read about [Contributing](CONTRIBUTING.md) and follow our [Code of Conduct](CODE_OF_CONDUCT.md) * Want to use MathLive in your web page? The [Usage Guide](tutorials/USAGE_GUIDE.md) diff --git a/WELCOME.md b/WELCOME.md index 2985230ac..0bad72068 100644 --- a/WELCOME.md +++ b/WELCOME.md @@ -1,6 +1,6 @@

- +

diff --git a/assets/logo-1024.jpg b/assets/logo-1024.jpg deleted file mode 100644 index d3d4e3945..000000000 Binary files a/assets/logo-1024.jpg and /dev/null differ diff --git a/assets/logo-240.jpg b/assets/logo-240.jpg deleted file mode 100644 index 668b6ff0e..000000000 Binary files a/assets/logo-240.jpg and /dev/null differ diff --git a/assets/logo-240.png b/assets/logo-240.png deleted file mode 100644 index 99bb375af..000000000 Binary files a/assets/logo-240.png and /dev/null differ diff --git a/assets/logo.png b/assets/logo.png new file mode 100644 index 000000000..af744841d Binary files /dev/null and b/assets/logo.png differ diff --git a/css/mathlive.core.less b/css/mathlive.core.less index eda86d511..772f461b5 100644 --- a/css/mathlive.core.less +++ b/css/mathlive.core.less @@ -33,6 +33,7 @@ .ML__base { display: inline-block; position: relative; + cursor: text; } .ML__strut, .ML__strut--bottom { @@ -171,7 +172,6 @@ body[theme="dark"] .ML__fieldcontainer { line-height: 0; padding: 2px; width: 100%; - cursor: text; } diff --git a/css/mathlive.less b/css/mathlive.less index bebb0c54d..f0d14268e 100755 --- a/css/mathlive.less +++ b/css/mathlive.less @@ -583,6 +583,12 @@ } +/* When using smartFence, the anticipated closing fence is displayed +with this style */ +.ML__smart-fence__close { + opacity: .5; +} + /* The element that displays the keys as the user type them */ .ML__keystroke-caption { visibility: hidden; diff --git a/dist/addons/debug.js b/dist/addons/debug.js index 900a0b3ec..196d06d9b 100644 --- a/dist/addons/debug.js +++ b/dist/addons/debug.js @@ -184,7 +184,7 @@ function spanToString(span, indent) { if (span.style) { for (var s in span.style) { - if (span.style.hasOwnProperty(s)) { + if (Object.prototype.hasOwnProperty.call(span.style, s)) { result += indent + s + ':"'; result += span.style[s] + '",\n'; } @@ -304,7 +304,7 @@ function spanToMarkup(span, indent) { if (span.style) { for (var s in span.style) { - if (span.style.hasOwnProperty(s)) { + if (Object.prototype.hasOwnProperty.call(span.style, s)) { result += ' ' + s + ':'; result += ' ' + span.style[s] + '; '; } diff --git a/dist/addons/maston.js b/dist/addons/maston.js index 575b0b380..fa5917a3b 100644 --- a/dist/addons/maston.js +++ b/dist/addons/maston.js @@ -431,6 +431,7 @@ function getArg(ast, index) { * Given a canonical name, return its precedence * @param {string} canonicalName, for example "and" * @return {number} + * @private */ @@ -449,6 +450,7 @@ function getAssociativity(canonicalName) { * * @param {string} name function canonical name * @return {string} + * @private */ @@ -465,6 +467,7 @@ function getLatexTemplateForFunction(name) { * * @param {string} name symbol name, e.g. "alpha" * @return {string} + * @private */ @@ -502,6 +505,7 @@ function isFunction(canonicalName) { * * @param {string} latex, for example '\\times' * @return {string} the canonical name for the input, for example '*' + * @private */ @@ -530,6 +534,7 @@ function getCanonicalName(latex) { * or -1 if not an operator * @param {object} atom * @return {number} + * @private */ @@ -684,6 +689,7 @@ function getString(atom) { * * @param {object} expr - Abstract Syntax Tree object * @return {string} A string, the symbol, or undefined + * @private */ @@ -695,6 +701,7 @@ function asSymbol(node) { * @param {object} node - Abstract Syntax Tree node * @return {number} A JavaScript number, the value of the AST or NaN * @private + * @private */ @@ -748,6 +755,7 @@ function hasSub(node) { * @param {object} expr * @param {string} type * @param {string} value + * @private */ @@ -769,6 +777,7 @@ function isAtom(expr, type, value) { * * @param {string} functionName * @param {object} params + * @private */ @@ -818,6 +827,7 @@ function wrapNum(num) { * Return the negative of the expression. Usually { fn:'negate', arg } * but for numbers, the negated number * @param {object} node + * @private */ @@ -851,6 +861,7 @@ function nextIsSupsub(expr) { * or to a following 'msubsup' atom. * After the call, the index points to the next atom to process. * @param {object} expr + * @private */ @@ -920,6 +931,7 @@ function parseSupsub(expr, options) { } /** * Parse postfix operators, such as "!" (factorial) + * @private */ @@ -971,6 +983,7 @@ function parsePostfix(expr, options) { * * This function handles all three cases * + * @private */ @@ -1138,6 +1151,7 @@ function nextIsDigraph(expr, digraph) { * =: * °C U+2103 * °F U+2109 + * @private * */ @@ -1654,6 +1668,7 @@ function parseExpression(expr, options) { * Return a string escaped as necessary to comply with the JSON format * @param {string} s * @return {string} + * @private */ @@ -1665,6 +1680,7 @@ function escapeText(s) { * * @return {object} * @method MathAtom#toAST + * @private */ @@ -1805,7 +1821,7 @@ _mathAtom.default.MathAtom.prototype.toAST = function (options) { case 'enclose': // result = '(.*)<\/mo>$/.test(mathML)) { - mathML = '⁢' + mathML; // INVISIBLE TIMES + mathML = '⁢' + mathML; } if (body.endsWith('>f') || body.endsWith('>g')) { - mathML += '⁡'; // APPLY FUNCTION - + mathML += ' ⁡ '; stream.lastType = 'applyfunction'; } else { stream.lastType = /^(.*)<\/mo>$/.test(mathML) ? 'mo' : 'mi'; @@ -151,6 +150,7 @@ function scanIdentifier(stream, final, options) { * Superscripts can be encoded either as an attribute on the last atom * or as a standalone, empty, atom following the one to which it applies. * @param {object} stream + * @private */ @@ -317,7 +317,7 @@ function scanFence(stream, final, options) { mathML += ''; if (stream.lastType === 'mi' || stream.lastType === 'mn' || stream.lastType === 'mfrac' || stream.lastType === 'fence') { - mathML = '⁢' + mathML; // INVISIBLE TIMES + mathML = '⁢' + mathML; } stream.index = closeIndex + 1; @@ -406,7 +406,7 @@ function scanOperator(stream, final, options) { if ((stream.lastType === 'mi' || stream.lastType === 'mn') && !/^(.*)<\/mo>$/.test(mathML)) { - mathML = '⁢' + mathML; // INVISIBLE TIMES + mathML = '⁢' + mathML; } stream.index += 1; @@ -538,6 +538,7 @@ function toString(atoms) { * Return a MathML fragment representation of a single atom * * @return {string} + * @private */ @@ -776,26 +777,29 @@ _mathAtom.default.MathAtom.prototype.toMathML = function (options) { break; case 'mord': - result = SPECIAL_IDENTIFIERS[command] || command || (typeof this.body === 'string' ? this.body : ''); - m = command ? command.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) : null; - - if (m) { - // It's a \char command - result = '&#x' + m[1] + ';'; - } else if (result.length > 0 && result.charAt(0) === '\\') { - // This is an identifier with no special handling. Use the - // Unicode value - if (typeof this.body === 'string' && this.body.charCodeAt(0) > 255) { - result = '&#x' + ('000000' + this.body.charCodeAt(0).toString(16)).substr(-4) + ';'; - } else if (typeof this.body === 'string') { - result = this.body.charAt(0); - } else { - result = this.body; + { + result = SPECIAL_IDENTIFIERS[command] || command || (typeof this.body === 'string' ? this.body : ''); + m = command ? command.match(/[{]?\\char"([0-9abcdefABCDEF]*)[}]?/) : null; + + if (m) { + // It's a \char command + result = '&#x' + m[1] + ';'; + } else if (result.length > 0 && result.charAt(0) === '\\') { + // This is an identifier with no special handling. Use the + // Unicode value + if (typeof this.body === 'string' && this.body.charCodeAt(0) > 255) { + result = '&#x' + ('000000' + this.body.charCodeAt(0).toString(16)).substr(-4) + ';'; + } else if (typeof this.body === 'string') { + result = this.body.charAt(0); + } else { + result = this.body; + } } - } - result = '' + xmlEscape(result) + ''; - break; + var tag = /\d/.test(result) ? 'mn' : 'mi'; + result = '<' + tag + variant + makeID(this.id, options) + '>' + xmlEscape(result) + ''; + break; + } case 'mbin': case 'mrel': @@ -861,7 +865,7 @@ _mathAtom.default.MathAtom.prototype.toMathML = function (options) { result = 'a', + 'A': 'capital A', '+': 'plus ', '-': 'minus ', ';': ' semi-colon ', @@ -620,21 +622,19 @@ _mathAtom.default.toSpeakableFragment = function (atom, options) { return result; }; /** - * @param {MathAtom[]} [atoms] The atoms to represent as speakable text. + * @param {MathAtom[]} atoms The atoms to represent as speakable text. * If omitted, `this` is used. - * @param {Object.} [options] + * @param {Object.} speechOptions + * @private */ -_mathAtom.default.toSpeakableText = function (atoms, options) { - if (!options) { - options = { - textToSpeechMarkup: '', - // no markup - textToSpeechRules: 'mathlive' - }; - } - +_mathAtom.default.toSpeakableText = function (atoms, speechOptions) { + var options = speechOptions ? JSON.parse(JSON.stringify(speechOptions)) : { + textToSpeechMarkup: '', + // no markup + textToSpeechRules: 'mathlive' + }; options.speechMode = 'math'; if (window.sre && options.textToSpeechRules === 'sre') { @@ -661,7 +661,7 @@ _mathAtom.default.toSpeakableText = function (atoms, options) { return window.sre.System.getInstance().toSpeech(mathML); } - return ''; // return window.sre.toSpeech(MathAtom.toMathML(atoms)); + return ''; } var result = _mathAtom.default.toSpeakableFragment(atoms, options); diff --git a/dist/core/color.js b/dist/core/color.js index 5662be60d..f26dc969d 100644 --- a/dist/core/color.js +++ b/dist/core/color.js @@ -24,6 +24,7 @@ exports.default = void 0; * @constant * @type {Object.} * @memberof module:color + * @private */ var MATHEMATICA_COLORS = { 'm0': '#3f3d99', @@ -109,6 +110,7 @@ var LINE_COLORS = ['#cc2428', // red * @constant NAMED_COLORS * @memberof module:color * @type {Object.} + * @private */ var NAMED_COLORS = { diff --git a/dist/core/definitions.js b/dist/core/definitions.js index faffb7712..9ca6e09f0 100644 --- a/dist/core/definitions.js +++ b/dist/core/definitions.js @@ -251,7 +251,7 @@ function matchCodepoint(parseMode, cp) { if (parseMode === 'math') { for (var p in MATH_SYMBOLS) { - if (MATH_SYMBOLS.hasOwnProperty(p)) { + if (Object.prototype.hasOwnProperty.call(MATH_SYMBOLS, p)) { if (MATH_SYMBOLS[p].value === s) { result = p; break; @@ -260,7 +260,7 @@ function matchCodepoint(parseMode, cp) { } } else { for (var _p in TEXT_SYMBOLS) { - if (TEXT_SYMBOLS.hasOwnProperty(_p)) { + if (Object.prototype.hasOwnProperty.call(TEXT_SYMBOLS, _p)) { if (TEXT_SYMBOLS[_p] === s) { result = _p; break; @@ -544,7 +544,7 @@ function unicodeToMathVariant(char) { for (var c in MATH_LETTER_EXCEPTIONS) { - if (MATH_LETTER_EXCEPTIONS.hasOwnProperty(c)) { + if (Object.prototype.hasOwnProperty.call(MATH_LETTER_EXCEPTIONS, c)) { if (MATH_LETTER_EXCEPTIONS[c] === codepoint) { codepoint = c; break; @@ -571,6 +571,8 @@ function unicodeToMathVariant(char) { * return the corresponding unicode character (a string) * @param {string} char * @param {string} variant + * @memberof module:definitions + * @private */ @@ -808,7 +810,7 @@ function suggest(s) { var result = []; // Iterate over items in the dictionary for (var p in FUNCTIONS) { - if (FUNCTIONS.hasOwnProperty(p)) { + if (Object.prototype.hasOwnProperty.call(FUNCTIONS, p)) { if (p.startsWith(s) && !FUNCTIONS[p].infix) { result.push({ match: p, @@ -819,7 +821,7 @@ function suggest(s) { } for (var _p2 in MATH_SYMBOLS) { - if (MATH_SYMBOLS.hasOwnProperty(_p2)) { + if (Object.prototype.hasOwnProperty.call(MATH_SYMBOLS, _p2)) { if (_p2.startsWith(s)) { result.push({ match: _p2, @@ -3300,6 +3302,8 @@ defineFunction(['\\hspace', '\\hspace*' // \hspace* inserts a non-breakable spac * If possible, i.e. if they are all simple atoms, return a string made up of * their body * @param {object[]} atoms + * @memberof module:definitions + * @private */ function getSimpleString(atoms) { diff --git a/dist/core/delimiters.js b/dist/core/delimiters.js index 11f4f69b0..77c67b823 100755 --- a/dist/core/delimiters.js +++ b/dist/core/delimiters.js @@ -351,7 +351,7 @@ function makeSizedDelim(type, delim, size, context, classes) { console.assert(false, 'Unknown delimiter \'' + delim + '\''); return null; } -/** +/* * There are three different sequences of delimiter sizes that the delimiters * follow depending on the kind of delimiter. This is used when creating custom * sized delimiters to decide whether to create a small, large, or stacked @@ -426,7 +426,7 @@ var stackLargeDelimiterSequence = [{ }, { type: 'stack' }]; -/** +/* * Get the font used in a delimiter based on what kind of delimiter it is. */ diff --git a/dist/core/fontMetrics.js b/dist/core/fontMetrics.js index c4c6333b7..b995c42ef 100755 --- a/dist/core/fontMetrics.js +++ b/dist/core/fontMetrics.js @@ -31,7 +31,7 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { de // - Hangul syllables: [\uAC00-\uD7AF] // Notably missing are half width Katakana and Romaji glyphs. var cjkRegex = /[\u3040-\u309F]|[\u30A0-\u30FF]|[\u4E00-\u9FAF]|[\uAC00-\uD7AF]/; -/** +/* * * In TeX, there are actually three sets of dimensions, one for each of * textstyle, scriptstyle, and scriptscriptstyle. These are provided in the @@ -132,7 +132,7 @@ var ptPerEm = 10.0; // The space between adjacent `|` columns in an array defini // article.cls.txt:455 var doubleRuleSep = 2.0 / ptPerEm; -/** +/* * This is just a mapping from common names to real metrics */ @@ -311,6 +311,7 @@ var getCharacterMetrics = function getCharacterMetrics(character, fontCode) { * with a unit, which will override the `unit` paramter * @param {string} unit * @param {number} precision + * @private */ diff --git a/dist/core/lexer.js b/dist/core/lexer.js index 623b37e6e..ac965e1dd 100644 --- a/dist/core/lexer.js +++ b/dist/core/lexer.js @@ -78,6 +78,7 @@ function () { * Return the next char and advance * @return {string} * @method module:core/lexer#Lexer#get + * @private */ }, { diff --git a/dist/core/mathAtom.js b/dist/core/mathAtom.js index 8b33013fa..0389c0060 100644 --- a/dist/core/mathAtom.js +++ b/dist/core/mathAtom.js @@ -129,8 +129,7 @@ var SIZING_MULTIPLIER = { * right after this element, it automatically moves to the last position * inside this element. * - * @class module:core/mathatom#MathAtom - * @global + * @class * @private */ @@ -554,6 +553,7 @@ function () { * * @return {MathAtom[]} * @method MathAtom#filter + * @private */ }, { @@ -976,6 +976,7 @@ function () { * also be set to 'auto', which indicates it should use the current mathstyle * * @method MathAtom#decomposeGenfrac + * @private */ }, { @@ -1116,7 +1117,7 @@ function () { leftDelim.applyStyle(this.getStyle()); rightDelim.applyStyle(this.getStyle()); var result = makeOrd([leftDelim, frac, rightDelim], context.parentSize !== context.size ? 'sizing reset-' + context.parentSize + ' ' + context.size : ''); - return result; + return this.bind(context, result); } /** * \left....\right @@ -1126,7 +1127,8 @@ function () { * leftDelim (resp. rightDelim) will be undefined. We still need to handle * those cases. * - * @method MathAtom#decomposeLeftright + * @method MathAtom#decomposeLeftright + * @private */ }, { @@ -1263,7 +1265,7 @@ function () { var body = makeVlist(context, [inner, lineClearance, line, ruleWidth]); if (!this.index) { - return makeOrd([delim, body], 'sqrt'); + return this.bind(context, makeOrd([delim, body], 'sqrt')); } // Handle the optional root index // The index is always in scriptscript style @@ -1282,7 +1284,7 @@ function () { var rootVlist = makeVlist(context, [root], 'shift', -toShift); // Add a class surrounding it so we can add on the appropriate // kerning - return makeOrd([makeSpan(rootVlist, 'root'), delim, body], 'sqrt'); + return this.bind(context, makeOrd([makeSpan(rootVlist, 'root'), delim, body], 'sqrt')); } }, { key: "decomposeAccent", @@ -1335,6 +1337,7 @@ function () { * \overline and \underline * * @method MathAtom#decomposeLine + * @private */ }, { @@ -1381,6 +1384,7 @@ function () { * \rule * @memberof MathAtom * @instance + * @private */ }, { @@ -1672,6 +1676,7 @@ function () { * calculate the placement of the supsub * @return {Span[]} * @method MathAtom#decompose + * @private */ }, { @@ -1935,6 +1940,7 @@ function () { * @param {Context} context * @param {Span} span * @method MathAtom#bind + * @private */ }, { @@ -1959,6 +1965,7 @@ function () { * @param {(string|Span[])} body * @return {Span} * @method MathAtom#makeSpan + * @private */ }, { diff --git a/dist/core/mathstyle.js b/dist/core/mathstyle.js index e6b43bd68..cb27c6833 100755 --- a/dist/core/mathstyle.js +++ b/dist/core/mathstyle.js @@ -21,7 +21,7 @@ var metrics = [{}, {}, {}]; var i; for (var key in _fontMetrics.SIGMAS) { - if (_fontMetrics.SIGMAS.hasOwnProperty(key)) { + if (Object.prototype.hasOwnProperty.call(_fontMetrics.SIGMAS, key)) { for (i = 0; i < 3; i++) { metrics[i][key] = _fontMetrics.SIGMAS[key][i]; } diff --git a/dist/core/parser.js b/dist/core/parser.js index 3bab51f01..869946304 100644 --- a/dist/core/parser.js +++ b/dist/core/parser.js @@ -17,7 +17,9 @@ var _mathAtom = _interopRequireDefault(require("./mathAtom.js")); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } -function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; } +function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; } + +function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(source, true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(source).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; } function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } @@ -128,7 +130,8 @@ function () { /** * Return the last atom of the math list * If there isn't one, insert a `msubsup` and return it. - * @method Parser#lastMathAtom + * @method module:core/parser#Parser#lastMathAtom + * @private */ }, { @@ -151,6 +154,7 @@ function () { * @param {string} type * @return {boolean} True if the next token is of the specified type * @method module:core/parser#Parser#hasToken + * @private */ }, { @@ -165,6 +169,7 @@ function () { * specified value. If `value` is empty, return true if the token is of type * `'literal'` * @method Parser#hasLiteral + * @private */ }, { @@ -178,6 +183,7 @@ function () { * @return {boolean} True if the next token is of type `'literal` and matches * the specified regular expression pattern. * @method module:core/parser#Parser#hasLiteralPattern + * @private */ }, { @@ -227,7 +233,7 @@ function () { return false; } - /** + /* * Return the appropriate value for a placeholder, either a default * one, or if a value was provided for #? via args, that value. */ @@ -272,6 +278,7 @@ function () { /** * @param {string} type * @method module:core/parser#Parser#parseToken + * @private */ }, { @@ -1412,17 +1419,17 @@ function () { if (explicitGroup) { // Create a temporary style var saveStyle = this.style; - this.style = _objectSpread({}, this.style, attributes); + this.style = _objectSpread({}, this.style, {}, attributes); result = this.scanArg(explicitGroup); this.style = saveStyle; } else { // Merge the new style info with the current style - this.style = _objectSpread({}, this.style, attributes); + this.style = _objectSpread({}, this.style, {}, attributes); } this.parseMode = savedMode; } else { - result = new MathAtom(this.parseMode, info.type, explicitGroup ? this.scanArg(explicitGroup) : null, _objectSpread({}, this.style, attributes)); + result = new MathAtom(this.parseMode, info.type, explicitGroup ? this.scanArg(explicitGroup) : null, _objectSpread({}, this.style, {}, attributes)); } } else { var style = _objectSpread({}, this.style); @@ -1515,7 +1522,7 @@ function () { return result; } - /** + /* * Attempt to scan the macro name and return an atom list if successful. * Otherwise, it wasn't a macro. */ diff --git a/dist/core/span.js b/dist/core/span.js index 3f7018e69..b0d0d47f4 100644 --- a/dist/core/span.js +++ b/dist/core/span.js @@ -182,6 +182,7 @@ function () { * - fontSize: 'size1', 'size2'... * - color: * - background: + * @private */ }, { @@ -356,6 +357,7 @@ function () { /** * * @param {number} left + * @private */ }, { @@ -369,6 +371,7 @@ function () { /** * * @param {number} right + * @private */ }, { @@ -501,7 +504,7 @@ function () { if (this.attributes) { for (var attribute in this.attributes) { - if (this.attributes.hasOwnProperty(attribute)) { + if (Object.prototype.hasOwnProperty.call(this.attributes, attribute)) { result += ' ' + attribute + '="' + this.attributes[attribute] + '"'; } } @@ -561,7 +564,7 @@ function () { var isSelected = /ML__selected/.test(this.classes); for (var style in this.style) { - if (this.style.hasOwnProperty(style)) { + if (Object.prototype.hasOwnProperty.call(this.style, style)) { // Render the style property, except the background // of selected spans if (style !== 'background-color' || !isSelected) { @@ -681,7 +684,7 @@ function () { if (this.style && span.style) { for (var style in this.style) { - if (this.style.hasOwnProperty(style) && span.style.hasOwnProperty(style)) { + if (Object.prototype.hasOwnProperty.call(this.style, style) && Object.prototype.hasOwnProperty.call(span.style, style)) { if (this.style[style] !== span.style[style]) return false; } } @@ -1035,6 +1038,7 @@ function makeStyleWrap(type, children, fromStyle, toStyle, classes) { * * @param {Span} body * @param {string} svgMarkup + * @private */ @@ -1312,7 +1316,7 @@ var FONT_CLASS = { * @param {(string|Span[])} symbol the character for which we're seeking the font * @param {string} fontFamily such as 'mathbf', 'mathfrak', etc... * @return {string} a font name - * @memberof module:mathAtom + * @memberof module:span * @private */ diff --git a/dist/editor/editor-editableMathlist.js b/dist/editor/editor-editableMathlist.js index 6fb2b677c..ee458cc19 100644 --- a/dist/editor/editor-editableMathlist.js +++ b/dist/editor/editor-editableMathlist.js @@ -30,7 +30,9 @@ function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); } -function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; } +function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; } + +function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(source, true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(source).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; } function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } @@ -50,7 +52,7 @@ function _defineProperty(obj, key, value) { if (key in obj) { Object.definePrope * ``` * * @param {Object.} config - * @param {Element} target - A target object passed as the first argument of + * @param {HTMLElement} target - A target object passed as the first argument of * callback functions. Typically, a MathField. * @property {MathAtom[]} root - The root element of the math expression. * @property {Object[]} path - The path to the element that is the @@ -141,6 +143,8 @@ EditableMathlist.prototype.filter = function (cb, dir) { /** * Enumerator * @param {function} cb - A callback called for each atom in the mathlist. + * @method EditableMathlist#forEach + * @private */ @@ -151,6 +155,8 @@ EditableMathlist.prototype.forEach = function (cb) { * * @param {function} cb - A callback called for each selected atom in the * mathlist. + * @method EditableMathlist#forEachSelected + * @private */ @@ -192,6 +198,7 @@ EditableMathlist.prototype.toString = function () { /** * When changing the selection, if the former selection is an empty list, * insert a placeholder if necessary. For example, if in an empty numerator. + * @private */ @@ -253,6 +260,8 @@ EditableMathlist.prototype.contentDidChange = function () { * @param {string|Array} selection * @param {number} extent the length of the selection * @return {boolean} true if the path has actually changed + * @method EditableMathlist#setPath + * @private */ @@ -325,7 +334,7 @@ EditableMathlist.prototype.wordBoundary = function (path, dir) { iter.path[iter.path.length - 1].offset += i; return iter.path; }; -/** +/* * Calculates the offset of the "next word". * This is inspired by the behavior of text editors on macOS, namely: blue yellow @@ -503,6 +512,7 @@ EditableMathlist.prototype.setRange = function (from, to, options) { * @param {MathAtom[][]} array * @param {object} rowCol * @return {number} + * @private */ @@ -525,6 +535,7 @@ function arrayIndex(array, rowCol) { * @return {object} * - row: number * - col: number + * @private */ @@ -558,6 +569,7 @@ function arrayColRow(array, index) { * * @param {MathAtom[][]} array * @param {number|string|object} colrow + * @private */ @@ -579,6 +591,7 @@ function arrayCell(array, colrow) { /** * Total numbers of cells (include sparse cells) in the array. * @param {MathAtom[][]} array + * @private */ @@ -620,6 +633,7 @@ function arrayCellCount(array) { * @param {string} separator * @param {object} style * @return {MathAtom[]} + * @private */ @@ -674,6 +688,7 @@ function arrayJoinColumns(row, separator, style) { * @param {strings} separators * @param {object} style * @return {MathAtom[]} + * @private */ @@ -719,6 +734,7 @@ function arrayJoinRows(array, separators, style) { * @param {MathAtom} array * @param {number} col * @return {number} + * @private */ @@ -750,6 +766,7 @@ function arrayColumnCellCount(array, col) { * Remove the indicated column from the array * @param {MathAtom} array * @param {number} col + * @private */ @@ -768,6 +785,7 @@ function arrayRemoveColumn(array, col) { * Remove the indicated row from the array * @param {MathAtom} atom * @param {number} row + * @private */ @@ -778,6 +796,7 @@ function arrayRemoveRow(array, row) { * Return the first non-empty cell, row by row * @param {MathAtom[][]} array * @return {string} + * @private */ @@ -800,6 +819,7 @@ function arrayFirstCellByRow(array) { * @param {MathAtom[][]} array * @param {object} colRow * @param {number} dir + * @private */ @@ -992,6 +1012,7 @@ EditableMathlist.prototype.sibling = function (offset) { /** * @return {boolean} True if the selection is an insertion point. * @method EditableMathlist#isCollapsed + * @private */ @@ -1024,6 +1045,7 @@ EditableMathlist.prototype.collapseBackward = function () { * Return true if the atom could be a part of a number * i.e. "-12354.568" * @param {object} atom + * @private */ @@ -1037,6 +1059,7 @@ function isNumber(atom) { * the selection is a superscript or subscript, the group is the supsub. * When the selection is in a text zone, the "group" is a word. * @method EditableMathlist#selectGroup_ + * @private */ @@ -1091,6 +1114,7 @@ EditableMathlist.prototype.selectGroup_ = function () { /** * Select all the atoms in the math field. * @method EditableMathlist#selectAll_ + * @private */ @@ -1104,6 +1128,7 @@ EditableMathlist.prototype.selectAll_ = function () { /** * Delete everything in the field * @method EditableMathlist#deleteAll_ + * @private */ @@ -2153,6 +2178,7 @@ EditableMathlist.prototype.leap = function (dir, callHandler) { } } + this.suppressChangeNotifications = savedSuppressChangeNotifications; return false; } // Set the selection to the next placeholder @@ -2236,7 +2262,7 @@ function removeParen(list) { return list; } -/** +/* * If it's a fraction with a parenthesized numerator or denominator * remove the parentheses * */ @@ -2253,7 +2279,7 @@ EditableMathlist.prototype.simplifyParen = function (atoms) { var genFracIndex = 0; var nonGenFracCount = 0; - for (var j = 0; atoms[i].body; j++) { + for (var j = 0; atoms[i].body[j]; j++) { if (atoms[i].body[j].type === 'genfrac') { genFracCount++; genFracIndex = j; @@ -2352,13 +2378,13 @@ function applyStyleToUnstyledAtoms(atom, style) { /** * @param {string} s * @param {Object.} options - * @param {string} options.insertionMode - + * @param {"replaceSelection"|"replaceAll"|"insertBefore"|"insertAfter"} options.insertionMode - * * 'replaceSelection' (default) * * 'replaceAll' * * 'insertBefore' * * 'insertAfter' * - * @param {string} options.selectionMode - Describes where the selection + * @param {"placeholder"|"after"|"before"} options.selectionMode - Describes where the selection * will be after the insertion: * * `'placeholder'`: the selection will be the first available placeholder * in the item that has been inserted) (default) @@ -2370,12 +2396,12 @@ function applyStyleToUnstyledAtoms(atom, style) { * * @param {string} options.placeholder - The placeholder string, if necessary * - * @param {string} options.format - The format of the string `s`: + * @param {"auto"|"latex"} options.format - The format of the string `s`: * * `'auto'`: the string is interpreted as a latex fragment or command or * ASCIIMath (default) * * `'latex'`: the string is interpreted strictly as a latex fragment * - * @param {string} options.smartFence - If true, promote plain fences, e.g. `(`, + * @param {boolean} options.smartFence - If true, promote plain fences, e.g. `(`, * as `\left...\right` or `\mleft...\mright` * * @param {boolean} options.suppressChangeNotifications - If true, the @@ -2385,6 +2411,7 @@ function applyStyleToUnstyledAtoms(atom, style) { * @param {object} options.style * * @method EditableMathlist#insert + * @private */ @@ -2606,6 +2633,7 @@ EditableMathlist.prototype.insert = function (s, options) { * @param {string} fence * @param {object} style * @return {boolean} + * @private */ @@ -2668,12 +2696,9 @@ EditableMathlist.prototype._insertSmartFence = function (fence, style) { var lDelim; - - for (var delim in _definitions.default.RIGHT_DELIM) { - if (_definitions.default.RIGHT_DELIM.hasOwnProperty(delim)) { - if (fence === _definitions.default.RIGHT_DELIM[delim]) lDelim = delim; - } - } + Object.keys(_definitions.default.RIGHT_DELIM).forEach(function (delim) { + if (fence === _definitions.default.RIGHT_DELIM[delim]) lDelim = delim; + }); if (lDelim) { // We found the matching open fence, so it was a valid close fence. @@ -2820,6 +2845,7 @@ EditableMathlist.prototype._deleteAtoms = function (count) { /** * Delete multiple characters * @method EditableMathlist#delete + * @private */ @@ -2847,6 +2873,7 @@ EditableMathlist.prototype.delete = function (count) { * If dir = 0, delete only if the selection is not collapsed * @method EditableMathlist#delete_ * @instance + * @private */ @@ -3040,6 +3067,7 @@ EditableMathlist.prototype.delete_ = function (dir) { }; /** * @method EditableMathlist#moveToNextPlaceholder_ + * @private */ @@ -3048,6 +3076,7 @@ EditableMathlist.prototype.moveToNextPlaceholder_ = function () { }; /** * @method EditableMathlist#moveToPreviousPlaceholder_ + * @private */ @@ -3056,6 +3085,7 @@ EditableMathlist.prototype.moveToPreviousPlaceholder_ = function () { }; /** * @method EditableMathlist#moveToNextChar_ + * @private */ @@ -3064,6 +3094,7 @@ EditableMathlist.prototype.moveToNextChar_ = function () { }; /** * @method EditableMathlist#moveToPreviousChar_ + * @private */ @@ -3072,6 +3103,7 @@ EditableMathlist.prototype.moveToPreviousChar_ = function () { }; /** * @method EditableMathlist#moveUp_ + * @private */ @@ -3080,6 +3112,7 @@ EditableMathlist.prototype.moveUp_ = function () { }; /** * @method EditableMathlist#moveDown_ + * @private */ @@ -3088,6 +3121,7 @@ EditableMathlist.prototype.moveDown_ = function () { }; /** * @method EditableMathlist#moveToNextWord_ + * @private */ @@ -3096,6 +3130,7 @@ EditableMathlist.prototype.moveToNextWord_ = function () { }; /** * @method EditableMathlist#moveToPreviousWord_ + * @private */ @@ -3104,6 +3139,7 @@ EditableMathlist.prototype.moveToPreviousWord_ = function () { }; /** * @method EditableMathlist#moveToGroupStart_ + * @private */ @@ -3112,6 +3148,7 @@ EditableMathlist.prototype.moveToGroupStart_ = function () { }; /** * @method EditableMathlist#moveToGroupEnd_ + * @private */ @@ -3120,6 +3157,7 @@ EditableMathlist.prototype.moveToGroupEnd_ = function () { }; /** * @method EditableMathlist#moveToMathFieldStart_ + * @private */ @@ -3128,6 +3166,7 @@ EditableMathlist.prototype.moveToMathFieldStart_ = function () { }; /** * @method EditableMathlist#moveToMathFieldEnd_ + * @private */ @@ -3136,6 +3175,7 @@ EditableMathlist.prototype.moveToMathFieldEnd_ = function () { }; /** * @method EditableMathlist#deleteNextChar_ + * @private */ @@ -3144,6 +3184,7 @@ EditableMathlist.prototype.deleteNextChar_ = function () { }; /** * @method EditableMathlist#deletePreviousChar_ + * @private */ @@ -3152,6 +3193,7 @@ EditableMathlist.prototype.deletePreviousChar_ = function () { }; /** * @method EditableMathlist#deleteNextWord_ + * @private */ @@ -3161,6 +3203,7 @@ EditableMathlist.prototype.deleteNextWord_ = function () { }; /** * @method EditableMathlist#deletePreviousWord_ + * @private */ @@ -3170,6 +3213,7 @@ EditableMathlist.prototype.deletePreviousWord_ = function () { }; /** * @method EditableMathlist#deleteToGroupStart_ + * @private */ @@ -3179,6 +3223,7 @@ EditableMathlist.prototype.deleteToGroupStart_ = function () { }; /** * @method EditableMathlist#deleteToGroupEnd_ + * @private */ @@ -3188,6 +3233,8 @@ EditableMathlist.prototype.deleteToGroupEnd_ = function () { }; /** * @method EditableMathlist#deleteToMathFieldEnd_ + * @private + * @private */ @@ -3200,6 +3247,7 @@ EditableMathlist.prototype.deleteToMathFieldEnd_ = function () { * the insertion point past both of them. Does nothing to a selected range of * text. * @method EditableMathlist#transpose_ + * @private */ @@ -3207,6 +3255,7 @@ EditableMathlist.prototype.transpose_ = function () {} // @todo /** * @method EditableMathlist#extendToNextChar_ + * @private */ ; @@ -3215,6 +3264,7 @@ EditableMathlist.prototype.extendToNextChar_ = function () { }; /** * @method EditableMathlist#extendToPreviousChar_ + * @private */ @@ -3223,6 +3273,7 @@ EditableMathlist.prototype.extendToPreviousChar_ = function () { }; /** * @method EditableMathlist#extendToNextWord_ + * @private */ @@ -3233,6 +3284,7 @@ EditableMathlist.prototype.extendToNextWord_ = function () { }; /** * @method EditableMathlist#extendToPreviousWord_ + * @private */ @@ -3245,6 +3297,7 @@ EditableMathlist.prototype.extendToPreviousWord_ = function () { * If the selection is in a denominator, the selection will be extended to * include the numerator. * @method EditableMathlist#extendUp_ + * @private */ @@ -3257,6 +3310,7 @@ EditableMathlist.prototype.extendUp_ = function () { * If the selection is in a numerator, the selection will be extended to * include the denominator. * @method EditableMathlist#extendDown_ + * @private */ @@ -3272,6 +3326,7 @@ EditableMathlist.prototype.extendDown_ = function () { * "1" and "2", invoking `extendToNextBoundary_` would extend the selection * to "234". * @method EditableMathlist#extendToNextBoundary_ + * @private */ @@ -3287,6 +3342,7 @@ EditableMathlist.prototype.extendToNextBoundary_ = function () { * "5" and "6", invoking `extendToPreviousBoundary` would extend the selection * to "2345". * @method EditableMathlist#extendToPreviousBoundary_ + * @private */ @@ -3297,6 +3353,7 @@ EditableMathlist.prototype.extendToPreviousBoundary_ = function () { }; /** * @method EditableMathlist#extendToGroupStart_ + * @private */ @@ -3305,6 +3362,7 @@ EditableMathlist.prototype.extendToGroupStart_ = function () { }; /** * @method EditableMathlist#extendToGroupEnd_ + * @private */ @@ -3313,6 +3371,7 @@ EditableMathlist.prototype.extendToGroupEnd_ = function () { }; /** * @method EditableMathlist#extendToMathFieldStart_ + * @private */ @@ -3324,6 +3383,7 @@ EditableMathlist.prototype.extendToMathFieldStart_ = function () { /** * Extend the selection to the end of the math field. * @method EditableMathlist#extendToMathFieldEnd_ + * @private */ @@ -3336,6 +3396,7 @@ EditableMathlist.prototype.extendToMathFieldEnd_ = function () { * Switch the cursor to the superscript and select it. If there is no subscript * yet, create one. * @method EditableMathlist#moveToSuperscript_ + * @private */ @@ -3375,6 +3436,7 @@ EditableMathlist.prototype.moveToSuperscript_ = function () { * Switch the cursor to the subscript and select it. If there is no subscript * yet, create one. * @method EditableMathlist#moveToSubscript_ + * @private */ @@ -3418,6 +3480,7 @@ EditableMathlist.prototype.moveToSubscript_ = function () { * - denominator: move to numerator * - otherwise: move to superscript * @method EditableMathlist#moveToOpposite_ + * @private */ @@ -3444,6 +3507,7 @@ EditableMathlist.prototype.moveToOpposite_ = function () { }; /** * @method EditableMathlist#moveBeforeParent_ + * @private */ @@ -3457,6 +3521,7 @@ EditableMathlist.prototype.moveBeforeParent_ = function () { }; /** * @method EditableMathlist#moveAfterParent_ + * @private */ @@ -3544,6 +3609,7 @@ EditableMathlist.prototype.convertParentToArray = function () { }; /** * @method EditableMathlist#addRowAfter_ + * @private */ @@ -3557,6 +3623,7 @@ EditableMathlist.prototype.addRowAfter_ = function () { }; /** * @method EditableMathlist#addRowBefore_ + * @private */ @@ -3570,6 +3637,7 @@ EditableMathlist.prototype.addRowBefore_ = function () { }; /** * @method EditableMathlist#addColumnAfter_ + * @private */ @@ -3583,6 +3651,7 @@ EditableMathlist.prototype.addColumnAfter_ = function () { }; /** * @method EditableMathlist#addColumnBefore_ + * @private */ @@ -3602,6 +3671,7 @@ EditableMathlist.prototype.addColumnBefore_ = function () { * those sections, and apply it to the entire selection. * * @method EditableMathlist#applyStyle + * @private */ @@ -3696,6 +3766,7 @@ EditableMathlist.prototype._applyStyle = function (style) { * - "JavaScript Latex": a variant that is LaTeX, but with escaped backslashes * \\frac{1}{2} \\sin x * @param {string} s + * @private */ @@ -3886,6 +3957,7 @@ function parseMathExpression(s, config) { * @return {object} * - match: the parsed (and converted) portion of the string that is an argument * - rest: the raw, unconverted, rest of the string + * @private */ diff --git a/dist/editor/editor-keyboard.js b/dist/editor/editor-keyboard.js index f941ce59c..ededf3d69 100644 --- a/dist/editor/editor-keyboard.js +++ b/dist/editor/editor-keyboard.js @@ -104,6 +104,7 @@ var VIRTUAL_KEY_NAMES = { * - Returns "Alt-Alt" when only the Alt key is pressed * @memberof module:editor/keyboard * @param {Event} evt + * @private */ function keyboardEventToString(evt) { @@ -118,10 +119,6 @@ function keyboardEventToString(evt) { } } - if (!keyname && evt.code) { - keyname = KEY_NAMES[evt.code] || evt.code; - } - if (!keyname) { if (INTL_KEY[evt.key]) { keyname = INTL_KEY[evt.key]; @@ -139,6 +136,10 @@ function keyboardEventToString(evt) { } } + if (!keyname && evt.code) { + keyname = KEY_NAMES[evt.code] || evt.code; + } + var modifiers = []; if (evt.ctrlKey) modifiers.push('Ctrl'); if (evt.metaKey) modifiers.push('Meta'); @@ -157,11 +158,11 @@ function keyboardEventToString(evt) { * in the `keystroke()` handler while text input should be handled in * `typedtext()`. * - * @param {Element} textarea A `TextArea` element that will capture the keyboard + * @param {HTMLElement} textarea A `TextArea` element that will capture the keyboard * events. While this element will usually be a `TextArea`, it could be any * element that is focusable and can receive keyboard events. * @param {Object.} handlers - * @param {Element} [handlers.container] + * @param {HTMLElement} [handlers.container] * @param {function} handlers.keystroke invoked on a key down event, including * for special keys such as ESC, arrow keys, tab, etc... and their variants * with modifiers. diff --git a/dist/editor/editor-mathfield.js b/dist/editor/editor-mathfield.js index 77b50da96..41ebba934 100644 --- a/dist/editor/editor-mathfield.js +++ b/dist/editor/editor-mathfield.js @@ -55,10 +55,18 @@ function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object. function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } } -function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; } +function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; } + +function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(source, true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(source).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; } function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + /* Note: The OutputLatex, OutputMathML, MASTON and OutputSpokenText modules are required, @@ -67,6 +75,66 @@ function _defineProperty(obj, key, value) { if (key in obj) { Object.definePrope They modify the MathAtom class, adding toLatex(), toAST(), toMathML() and toSpeakableText() respectively. */ + +/** + * @typedef {function} MathFieldCallback + * @param {MathField} mf + * @return {void} + * @global + */ + +/** + @typedef MathFieldConfig + @type {Object} + @property {string} locale? + @property {object} strings? + @property {number} horizontalSpacingScale? + @property {string} namespace? + @property {function} substituteTextArea? + @property {"math" | "text"} defaultMode? + @property {MathFieldCallback} onFocus? + @property {MathFieldCallback} onBlur? + @property {function} onKeystroke? + @property {function} onAnnounce? + @property {boolean} overrideDefaultInlineShortcuts? + @property {object} inlineShortcuts? + @property {number} inlineShortcutTimeout? + @property {boolean} smartFence? + @property {boolean} smartSuperscript? + @property {number} scriptDepth? + @property {boolean} removeExtraneousParentheses? + @property {boolean} ignoreSpacebarInMathMode? + @property {string} virtualKeyboardToggleGlyph? + @property {"manual" | "onfocus" | "off" } virtualKeyboardMode? + @property {"all" | "numeric" | "roman" | "greek" | "functions" | "command" | string} virtualKeyboards? + @property {"qwerty" | "azerty" | "qwertz" | "dvorak" | "colemak"} virtualKeyboardRomanLayout? + @property {object} customVirtualKeyboardLayers? + @property {object} customVirtualKeyboards? + @property {"material" | "apple" | ""} virtualKeyboardTheme? + @property {boolean} keypressVibration? + @property {string} keypressSound? + @property {string} plonkSound? + @property {"mathlive" | "sre"} textToSpeechRules? + @property {"ssml" | "mac"} textToSpeechMarkup? + @property {object} textToSpeechRulesOptions? + @property {"local" | "amazon"} speechEngine? + @property {string} speechEngineVoice? + @property {string} speechEngineRate? + @property {function} onMoveOutOf? + @property {function} onTabOutOf? + @property {MathFieldCallback} onContentWillChange? + @property {MathFieldCallback} onContentDidChange? + @property {MathFieldCallback} onSelectionWillChange? + @property {MathFieldCallback} onSelectionDidChange? + @property {function} onUndoStateWillChange? + @property {function} onUndoStateDidChange? + @property {function} onModeChange? + @property {function} onVirtualKeyboardToggle? + @property {function} onReadAloudStatus? + @property {function} handleSpeak? + @property {function} handleReadAloud? + @global + */ var HAPTIC_FEEDBACK_DURATION = 3; // in ms var AUDIO_FEEDBACK_VOLUME = 0.5; // from 0.0 to 1.0 @@ -183,3797 +251,4023 @@ function releaseSharedElement(el) { return el; } /** - * To create a mathfield, you would typically use {@linkcode module:MathLive#makeMathField MathLive.makeMathField()} - * instead of invoking directly this constructor. - * - * **Note** - * - Method names that begin with `$` are public. - * - Method names that _begin with_ an underbar `_` are private and meant - * to be used only by the implementation of the class. - * - Method names that _end with_ an underbar `_` are selectors. They can - * be invoked by calling [`MathField.$perform()`]{@link MathField#$perform}. Note - * that the selector name does not include the underbar. - * - * For example: - * ``` - * mf.$perform('selectAll'); - * ``` + * Validate a style specification object + * @param {object} style + * @private + */ + + +function validateStyle(style) { + var result = {}; + + if (typeof style.mode === 'string') { + result.mode = style.mode.toLowerCase(); + console.assert(result.mode === 'math' || result.mode === 'text' || result.mode === 'command'); + } + + if (typeof style.color === 'string') { + result.color = style.color; + } + + if (typeof style.backgroundColor === 'string') { + result.backgroundColor = style.backgroundColor; + } + + if (typeof style.fontFamily === 'string') { + result.fontFamily = style.fontFamily; + } + + if (typeof style.series === 'string') { + result.fontSeries = style.series; + } + + if (typeof style.fontSeries === 'string') { + result.fontSeries = style.fontSeries.toLowerCase(); + } + + if (result.fontSeries) { + result.fontSeries = { + "bold": 'b', + "medium": 'm', + "normal": 'mn' + }[result.fontSeries] || result.fontSeries; + } + + if (typeof style.shape === 'string') { + result.fontShape = style.shape; + } + + if (typeof style.fontShape === 'string') { + result.fontShape = style.fontShape.toLowerCase(); + } + + if (result.fontShape) { + result.fontShape = { + "italic": 'it', + "up": 'n', + "upright": 'n', + "normal": 'n' + }[result.fontShape] || result.fontShape; + } + + if (typeof style.size === 'string') { + result.fontSize = style.size; + } else if (typeof style.size === 'number') { + result.fontSize = 'size' + Math.min(0, Math.max(10, style.size)); + } + + if (typeof style.fontSize === 'string') { + result.fontSize = style.fontSize.toLowerCase(); + } + + if (result.fontSize) { + result.fontSize = { + 'tiny': 'size1', + 'scriptsize': 'size2', + 'footnotesize': 'size3', + 'small': 'size4', + 'normal': 'size5', + 'normalsize': 'size5', + 'large': 'size6', + 'Large': 'size7', + 'LARGE': 'size8', + 'huge': 'size9', + 'Huge': 'size10' + }[result.fontSize] || result.fontSize; + } + + return result; +} +/* + * **Note** + * - Method names that begin with `$` are public. + * - Method names that _begin with_ an underbar `_` are private and meant + * to be used only by the implementation of the class. + * - Method names that _end with_ an underbar `_` are selectors. They can + * be invoked by calling [`MathField.$perform()`]{@link MathField#$perform}. Note + * that the selector name does not include the underbar. + * + * For example: + * ``` + * mf.$perform('selectAll'); + * ``` +*/ + +/** * - * @param {Element} element - The DOM element that this mathfield is attached to. - * Note that `element.mathfield` is this object. - * @param {object} config - See {@tutorial CONFIG} for details - * @property {Element} element - The DOM element this mathfield is attached to. + * @property {HTMLElement} element - The DOM element this mathfield is attached to. * @property {Object.} config - A set of key/value pairs that can * be used to customize the behavior of the mathfield * @property {string} id - A unique ID identifying this mathfield * @property {boolean} keystrokeCaptionVisible - True if the keystroke caption * panel is visible - * @property {boolean} virtualKeyboardVisible - True if the virtual keyboard is + * @property {boolean} virtualKeyboardVisible - True if the virtual keyboard is * visible * @property {string} keystrokeBuffer The last few keystrokes, to look out * for inline shortcuts - * @property {object[]} keystrokeBufferStates The saved state for each of the + * @property {object[]} keystrokeBufferStates The saved state for each of the * past keystrokes - * @class + * @class MathField * @global */ -function MathField(element, config) { - var _this = this; - - // Setup default config options - this.$setConfig(config || {}); - this.element = element; - element.mathfield = this; // Save existing content - - this.originalContent = element.innerHTML; - var elementText = this.element.textContent; - if (elementText) elementText = elementText.trim(); // Additional elements used for UI. - // They are retrieved in order a bit later, so they need to be kept in sync - // 1.0/ The field, where the math equation will be displayed - // 1.1/ The virtual keyboard toggle - // 2/ The popover panel which displays info in command mode - // 3/ The keystroke caption panel (option+shift+K) - // 4/ The virtual keyboard - // 5.0/ The area to stick MathML for screen reading larger exprs (not used right now) - // The for the area is that focus would bounce their and then back triggering the - // screen reader to read it - // 5.1/ The aria-live region for announcements - - var markup = ''; - - if (!this.config.substituteTextArea) { - if (/android|ipad|ipod|iphone/i.test(navigator.userAgent)) { - // On Android or iOS, don't use a textarea, which has the side effect of - // bringing up the OS virtual keyboard - markup += "\n \n \n "; - } else { - markup += '' + '' + ''; - } - } else { - if (typeof this.config.substituteTextArea === 'string') { - markup += this.config.substituteTextArea; +var MathField = +/*#__PURE__*/ +function () { + /** + * To create a mathfield, you would typically use {@linkcode module:MathLive#makeMathField MathLive.makeMathField()} + * instead of invoking directly this constructor. + * + * + * @param {HTMLElement} element - The DOM element that this mathfield is attached to. + * Note that `element.mathfield` is this object. + * @param {MathFieldConfig} config - See {@tutorial CONFIG} for details + * @method MathField#constructor + * @private + */ + function MathField(element, config) { + var _this = this; + + _classCallCheck(this, MathField); + + // Setup default config options + this.$setConfig(config || {}); + this.element = element; + element.mathfield = this; // Save existing content + + this.originalContent = element.innerHTML; + var elementText = this.element.textContent; + + if (elementText) { + elementText = elementText.trim(); + } // Additional elements used for UI. + // They are retrieved in order a bit later, so they need to be kept in sync + // 1.0/ The field, where the math equation will be displayed + // 1.1/ The virtual keyboard toggle + // 2/ The popover panel which displays info in command mode + // 3/ The keystroke caption panel (option+shift+K) + // 4/ The virtual keyboard + // 5.0/ The area to stick MathML for screen reading larger exprs (not used right now) + // The for the area is that focus would bounce their and then back triggering the + // screen reader to read it + // 5.1/ The aria-live region for announcements + + + var markup = ''; + + if (!this.config.substituteTextArea) { + if (/android|ipad|ipod|iphone/i.test(navigator.userAgent)) { + // On Android or iOS, don't use a textarea, which has the side effect of + // bringing up the OS virtual keyboard + markup += "\n \n \n "; + } else { + markup += '' + '' + ''; + } } else { - // We don't really need this one, but we keep it here so that the - // indexes below remain the same whether a substituteTextArea is - // provided or not. - markup += ''; + if (typeof this.config.substituteTextArea === 'string') { + markup += this.config.substituteTextArea; + } else { + // We don't really need this one, but we keep it here so that the + // indexes below remain the same whether a substituteTextArea is + // provided or not. + markup += ''; + } } - } - markup += '' + ''; // If no value is specified for the virtualKeyboardMode, use - // `onfocus` on touch-capable devices and `off` otherwise. + markup += '' + ''; // If no value is specified for the virtualKeyboardMode, use + // `onfocus` on touch-capable devices and `off` otherwise. - if (!this.config.virtualKeyboardMode) { - this.config.virtualKeyboardMode = window.matchMedia && window.matchMedia("(any-pointer: coarse)").matches ? 'onfocus' : 'off'; - } // Only display the virtual keyboard toggle if the virtual keyboard mode is - // 'manual' + if (!this.config.virtualKeyboardMode) { + this.config.virtualKeyboardMode = window.matchMedia && window.matchMedia("(any-pointer: coarse)").matches ? 'onfocus' : 'off'; + } // Only display the virtual keyboard toggle if the virtual keyboard mode is + // 'manual' - if (this.config.virtualKeyboardMode === 'manual') { - markup += "'; } else { - markup += ""; + markup += ''; } - markup += ''; - } else { - markup += ''; - } + markup += ''; + markup += "\n
\n \n \n
\n "; + this.element.innerHTML = markup; + var iChild = 0; // index of child -- used to make changes below easier - markup += ''; - markup += "\n
\n \n \n
\n "; - this.element.innerHTML = markup; - var iChild = 0; // index of child -- used to make changes below easier + if (typeof this.config.substituteTextArea === 'function') { + this.textarea = this.config.substituteTextArea(); + } else { + this.textarea = this.element.children[iChild++].firstElementChild; + } - if (typeof this.config.substituteTextArea === 'function') { - this.textarea = this.config.substituteTextArea(); - } else { - this.textarea = this.element.children[iChild++].firstElementChild; - } + this.field = this.element.children[iChild].children[0]; // Listen to 'wheel' events to scroll (horizontally) the field when it overflows - this.field = this.element.children[iChild].children[0]; // Listen to 'wheel' events to scroll (horizontally) the field when it overflows + this.field.addEventListener('wheel', function (ev) { + ev.preventDefault(); + ev.stopPropagation(); + var wheelDelta = typeof ev.deltaX === 'undefined' ? ev.detail : -ev.deltaX; - this.field.addEventListener('wheel', function (ev) { - ev.preventDefault(); - ev.stopPropagation(); - var wheelDelta = typeof ev.deltaX === 'undefined' ? ev.detail : -ev.deltaX; - if (!isFinite(wheelDelta)) wheelDelta = ev.wheelDelta / 10; + if (!isFinite(wheelDelta)) { + wheelDelta = ev.wheelDelta / 10; + } - _this.field.scroll({ - top: 0, - left: _this.field.scrollLeft - wheelDelta * 5 + _this.field.scroll({ + top: 0, + left: _this.field.scrollLeft - wheelDelta * 5 + }); + }, { + passive: false }); - }, { - passive: false - }); - this.virtualKeyboardToggleDOMNode = this.element.children[iChild++].children[1]; - - this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode, { - default: 'toggleVirtualKeyboard', - alt: 'toggleVirtualKeyboardAlt', - shift: 'toggleVirtualKeyboardShift' - }); - - this.ariaLiveText = this.element.children[iChild].children[0]; - this.accessibleNode = this.element.children[iChild++].children[1]; // Some panels are shared amongst instances of mathfield - // (there's a single instance in the document) - - this.popover = getSharedElement('mathlive-popover-panel', 'ML__popover'); - this.keystrokeCaption = getSharedElement('mathlive-keystroke-caption-panel', 'ML__keystroke-caption'); // The keystroke caption panel and the command bar are - // initially hidden - - this.keystrokeCaptionVisible = false; - this.virtualKeyboardVisible = false; - this.keystrokeBuffer = ''; - this.keystrokeBufferStates = []; - this.keystrokeBufferResetTimer = null; // This index indicates which of the suggestions available to - // display in the popover panel - - this.suggestionIndex = 0; // The input mode (text, math, command) - // While mathlist.anchorMode() represent the mode of the current selection, - // this.mode is the mode chosen by the user. It indicates the mode the - // next character typed will be interpreted in. - // It is often identical to mathlist.anchorMode() since changing the selection - // changes the mode, but sometimes it is not, for example when a user - // enters a mode changing command. - - this.mode = config.defaultMode || 'math'; - this.smartModeSuppressed = false; // Current style (color, weight, italic, etc...) - // Reflects the style to be applied on next insertion, if any - - this.style = {}; // Focus/blur state - - this.blurred = true; - on(this.element, 'focus', this); - on(this.element, 'blur', this); // Capture clipboard events - - on(this.textarea, 'cut', this); - on(this.textarea, 'copy', this); - on(this.textarea, 'paste', this); // Delegate keyboard events - - _editorKeyboard.default.delegateKeyboardEvents(this.textarea, { - container: this.element, - allowDeadKey: function allowDeadKey() { - return _this.mode === 'text'; - }, - typedText: this._onTypedText.bind(this), - paste: this._onPaste.bind(this), - keystroke: this._onKeystroke.bind(this), - focus: this._onFocus.bind(this), - blur: this._onBlur.bind(this) - }); // Delegate mouse and touch events - - - if (window.PointerEvent) { - // Use modern pointer events if available - on(this.field, 'pointerdown', this); - } else { - on(this.field, 'touchstart:active mousedown', this); - } // Request notification for when the window is resized ( - // or the device switched from portrait to landscape) to adjust - // the UI (popover, etc...) + this.virtualKeyboardToggleDOMNode = this.element.children[iChild++].children[1]; + this._attachButtonHandlers(this.virtualKeyboardToggleDOMNode, { + default: 'toggleVirtualKeyboard', + alt: 'toggleVirtualKeyboardAlt', + shift: 'toggleVirtualKeyboardShift' + }); - on(window, 'resize', this); // Override some handlers in the config + this.ariaLiveText = this.element.children[iChild].children[0]; + this.accessibleNode = this.element.children[iChild++].children[1]; // Some panels are shared amongst instances of mathfield + // (there's a single instance in the document) - var localConfig = _objectSpread({}, config); + this.popover = getSharedElement('mathlive-popover-panel', 'ML__popover'); + this.keystrokeCaption = getSharedElement('mathlive-keystroke-caption-panel', 'ML__keystroke-caption'); // The keystroke caption panel and the command bar are + // initially hidden - localConfig.onSelectionDidChange = MathField.prototype._onSelectionDidChange.bind(this); - localConfig.onContentDidChange = MathField.prototype._onContentDidChange.bind(this); - localConfig.onAnnounce = this.config.onAnnounce; - localConfig.macros = this.config.macros; - localConfig.removeExtraneousParentheses = this.config.removeExtraneousParentheses; - this.mathlist = new _editorEditableMathlist.default.EditableMathlist(localConfig, this); // Prepare to manage undo/redo + this.keystrokeCaptionVisible = false; + this.virtualKeyboardVisible = false; + this.keystrokeBuffer = ''; + this.keystrokeBufferStates = []; + this.keystrokeBufferResetTimer = null; // This index indicates which of the suggestions available to + // display in the popover panel - this.undoManager = new _editorUndo.default.UndoManager(this.mathlist); // If there was some content in the element, use it for the initial - // value of the mathfield + this.suggestionIndex = 0; // The input mode (text, math, command) + // While mathlist.anchorMode() represent the mode of the current selection, + // this.mode is the mode chosen by the user. It indicates the mode the + // next character typed will be interpreted in. + // It is often identical to mathlist.anchorMode() since changing the selection + // changes the mode, but sometimes it is not, for example when a user + // enters a mode changing command. - if (elementText.length > 0) { - this.$latex(elementText); - } // Now start recording potentially undoable actions + this.mode = config.defaultMode || 'math'; + this.smartModeSuppressed = false; // Current style (color, weight, italic, etc...) + // Reflects the style to be applied on next insertion, if any + this.style = {}; // Focus/blur state - this.undoManager.startRecording(); - this.undoManager.snapshot(this.config); -} -/** - * handleEvent is a function invoked when an event is registered with an - * object instead ( see `addEventListener()` in `on()`) - * The name is defined by addEventListener() and cannot be changed. - * This pattern is used to be able to release bound event handlers, - * (event handlers that need access to `this`) as the bind() function - * would create a new function that would have to be kept track off - * to be able to properly remove the event handler later. - */ + this.blurred = true; + on(this.element, 'focus', this); + on(this.element, 'blur', this); // Capture clipboard events + + on(this.textarea, 'cut', this); + on(this.textarea, 'copy', this); + on(this.textarea, 'paste', this); // Delegate keyboard events + + _editorKeyboard.default.delegateKeyboardEvents(this.textarea, { + container: this.element, + allowDeadKey: function allowDeadKey() { + return _this.mode === 'text'; + }, + typedText: this._onTypedText.bind(this), + paste: this._onPaste.bind(this), + keystroke: this._onKeystroke.bind(this), + focus: this._onFocus.bind(this), + blur: this._onBlur.bind(this) + }); // Delegate mouse and touch events -MathField.prototype.handleEvent = function (evt) { - var _this2 = this; + if (window.PointerEvent) { + // Use modern pointer events if available + on(this.field, 'pointerdown', this); + } else { + on(this.field, 'touchstart:active mousedown', this); + } // Request notification for when the window is resized ( + // or the device switched from portrait to landscape) to adjust + // the UI (popover, etc...) - switch (evt.type) { - case 'focus': - this._onFocus(evt); - break; + on(window, 'resize', this); // Override some handlers in the config - case 'blur': - this._onBlur(evt); + var localConfig = _objectSpread({}, config); - break; + localConfig.onSelectionDidChange = MathField.prototype._onSelectionDidChange.bind(this); + localConfig.onContentDidChange = MathField.prototype._onContentDidChange.bind(this); + localConfig.onAnnounce = this.config.onAnnounce; + localConfig.macros = this.config.macros; + localConfig.removeExtraneousParentheses = this.config.removeExtraneousParentheses; + this.mathlist = new _editorEditableMathlist.default.EditableMathlist(localConfig, this); // Prepare to manage undo/redo - case 'touchstart': - this._onPointerDown(evt); + this.undoManager = new _editorUndo.default.UndoManager(this.mathlist); // If there was some content in the element, use it for the initial + // value of the mathfield - break; + if (elementText.length > 0) { + this.$latex(elementText); + } // Now start recording potentially undoable actions - case 'mousedown': - this._onPointerDown(evt); - break; + this.undoManager.startRecording(); + this.undoManager.snapshot(this.config); + } + /* + * handleEvent is a function invoked when an event is registered with an + * object instead ( see `addEventListener()` in `on()`) + * The name is defined by addEventListener() and cannot be changed. + * This pattern is used to be able to release bound event handlers, + * (event handlers that need access to `this`) as the bind() function + * would create a new function that would have to be kept track off + * to be able to properly remove the event handler later. + */ + + + _createClass(MathField, [{ + key: "handleEvent", + value: function handleEvent(evt) { + var _this2 = this; + + switch (evt.type) { + case 'focus': + this._onFocus(evt); - case 'pointerdown': - this._onPointerDown(evt); + break; - break; + case 'blur': + this._onBlur(evt); - case 'resize': - { - if (this._resizeTimer) window.cancelAnimationFrame(this._resizeTimer); - this._resizeTimer = window.requestAnimationFrame(function () { - return _this2._onResize(); - }); - break; - } + break; - case 'cut': - this._onCut(evt); + case 'touchstart': + this._onPointerDown(evt); - break; + break; - case 'copy': - this._onCopy(evt); + case 'mousedown': + this._onPointerDown(evt); - break; + break; - case 'paste': - this._onPaste(evt); + case 'pointerdown': + this._onPointerDown(evt); - break; + break; - default: - console.warn('Unexpected event type', evt.type); - } -}; -/** - * Revert this math field to its original content. After this method has been - * called, no other methods can be called on the MathField object. To turn the - * element back into a MathField, call `MathLive.makeMathField()` on the - * element again to get a new math field object. - * - * @method MathField#$revertToOriginalContent - */ + case 'resize': + { + if (this._resizeTimer) { + window.cancelAnimationFrame(this._resizeTimer); + } + this._resizeTimer = window.requestAnimationFrame(function () { + return _this2._onResize(); + }); + break; + } -MathField.prototype.revertToOriginalContent = MathField.prototype.$revertToOriginalContent = function () { - this.element.innerHTML = this.originalContent; - this.element.mathfield = null; - delete this.accessibleNode; - delete this.ariaLiveText; - delete this.field; - off(this.textarea, 'cut', this); - off(this.textarea, 'copy', this); - off(this.textarea, 'paste', this); - this.textarea.remove(); - delete this.textarea; - this.virtualKeyboardToggleDOMNode.remove(); - delete this.virtualKeyboardToggleDOMNode; - delete releaseSharedElement(this.popover); - delete releaseSharedElement(this.keystrokeCaption); - delete releaseSharedElement(this.virtualKeyboard); - delete releaseSharedElement(document.getElementById('mathlive-alternate-keys-panel')); - off(this.element, 'pointerdown', this); - off(this.element, 'touchstart:active mousedown', this); - off(this.element, 'focus', this); - off(this.element, 'blur', this); - off(window, 'resize', this); -}; + case 'cut': + this._onCut(evt); -MathField.prototype._resetKeystrokeBuffer = function () { - this.keystrokeBuffer = ''; - this.keystrokeBufferStates = []; - clearTimeout(this.keystrokeBufferResetTimer); -}; -/** - * Utility function that returns the element which has the caret - * - * @param {DomElement} el - * @private - */ + break; + case 'copy': + this._onCopy(evt); -function _findElementWithCaret(el) { - if (el.classList.contains('ML__caret') || el.classList.contains('ML__text-caret') || el.classList.contains('ML__command-caret')) { - return el; - } + break; - var result; - Array.from(el.children).forEach(function (child) { - result = result || _findElementWithCaret(child); - }); - return result; -} -/** - * Return the (x,y) client coordinates of the caret - * - * @method MathField#_getCaretPosition - * @private - */ + case 'paste': + this._onPaste(evt); + break; -MathField.prototype._getCaretPosition = function () { - var caret = _findElementWithCaret(this.field); + default: + console.warn('Unexpected event type', evt.type); + } + } + /** + * Revert this math field to its original content. After this method has been + * called, no other methods can be called on the MathField object. To turn the + * element back into a MathField, call `MathLive.makeMathField()` on the + * element again to get a new math field object. + * + * @method MathField#$revertToOriginalContent + */ - if (caret) { - var bounds = caret.getBoundingClientRect(); - return { - x: bounds.right + window.scrollX, - y: bounds.bottom + window.scrollY - }; - } + }, { + key: "$revertToOriginalContent", + value: function $revertToOriginalContent() { + this.element.innerHTML = this.originalContent; + this.element.mathfield = null; + delete this.accessibleNode; + delete this.ariaLiveText; + delete this.field; + off(this.textarea, 'cut', this); + off(this.textarea, 'copy', this); + off(this.textarea, 'paste', this); + this.textarea.remove(); + delete this.textarea; + this.virtualKeyboardToggleDOMNode.remove(); + delete this.virtualKeyboardToggleDOMNode; + delete releaseSharedElement(this.popover); + delete releaseSharedElement(this.keystrokeCaption); + delete releaseSharedElement(this.virtualKeyboard); + delete releaseSharedElement(document.getElementById('mathlive-alternate-keys-panel')); + off(this.element, 'pointerdown', this); + off(this.element, 'touchstart:active mousedown', this); + off(this.element, 'focus', this); + off(this.element, 'blur', this); + off(window, 'resize', this); + } + }, { + key: "_resetKeystrokeBuffer", + value: function _resetKeystrokeBuffer() { + this.keystrokeBuffer = ''; + this.keystrokeBufferStates = []; + clearTimeout(this.keystrokeBufferResetTimer); + } + /** + * Return the (x,y) client coordinates of the caret + * + * @method MathField#_getCaretPosition + * @private + */ - return null; -}; + }, { + key: "_getCaretPosition", + value: function _getCaretPosition() { + var caret = _findElementWithCaret(this.field); + + if (caret) { + var bounds = caret.getBoundingClientRect(); + return { + x: bounds.right + window.scrollX, + y: bounds.bottom + window.scrollY + }; + } -MathField.prototype._getSelectionBounds = function () { - var selectedNodes = this.field.querySelectorAll('.ML__selected'); - - if (selectedNodes && selectedNodes.length > 0) { - var selectionRect = { - top: Infinity, - bottom: -Infinity, - left: Infinity, - right: -Infinity - }; // Calculate the union of the bounds of all the selected spans - - selectedNodes.forEach(function (node) { - var bounds = node.getBoundingClientRect(); - if (bounds.left < selectionRect.left) selectionRect.left = bounds.left; - if (bounds.right > selectionRect.right) selectionRect.right = bounds.right; - if (bounds.bottom > selectionRect.bottom) selectionRect.bottom = bounds.bottom; - if (bounds.top < selectionRect.top) selectionRect.top = bounds.top; - }); - var fieldRect = this.field.getBoundingClientRect(); - var w = selectionRect.right - selectionRect.left; - var h = selectionRect.bottom - selectionRect.top; - selectionRect.left = Math.ceil(selectionRect.left - fieldRect.left + this.field.scrollLeft); - selectionRect.right = selectionRect.left + w; - selectionRect.top = Math.ceil(selectionRect.top - fieldRect.top); - selectionRect.bottom = selectionRect.top + h; - return selectionRect; - } + return null; + } + }, { + key: "_getSelectionBounds", + value: function _getSelectionBounds() { + var selectedNodes = this.field.querySelectorAll('.ML__selected'); + + if (selectedNodes && selectedNodes.length > 0) { + var selectionRect = { + top: Infinity, + bottom: -Infinity, + left: Infinity, + right: -Infinity + }; // Calculate the union of the bounds of all the selected spans + + selectedNodes.forEach(function (node) { + var bounds = node.getBoundingClientRect(); + + if (bounds.left < selectionRect.left) { + selectionRect.left = bounds.left; + } - return null; -}; -/** - * Return a tuple of an element and a distance from point (x, y) - * @param {Element} el - * @param {number} x - * @param {number} y - * @function module:editor/mathfield#nearestElementFromPoint - * @private - */ + if (bounds.right > selectionRect.right) { + selectionRect.right = bounds.right; + } + if (bounds.bottom > selectionRect.bottom) { + selectionRect.bottom = bounds.bottom; + } -function nearestElementFromPoint(el, x, y) { - var result = { - element: null - }; - var considerChildren = true; + if (bounds.top < selectionRect.top) { + selectionRect.top = bounds.top; + } + }); + var fieldRect = this.field.getBoundingClientRect(); + var w = selectionRect.right - selectionRect.left; + var h = selectionRect.bottom - selectionRect.top; + selectionRect.left = Math.ceil(selectionRect.left - fieldRect.left + this.field.scrollLeft); + selectionRect.right = selectionRect.left + w; + selectionRect.top = Math.ceil(selectionRect.top - fieldRect.top); + selectionRect.bottom = selectionRect.top + h; + return selectionRect; + } - if (!el.getAttribute('data-atom-id')) { - // This element may not have a matching atom, but its children might - result.distance = Number.POSITIVE_INFINITY; - } else { - result.element = el; // Calculate the (square of the) distance to the rectangle + return null; + } + /** + * @param {number} x + * @param {number} y + * @param {object} options + * @param {boolean} options.bias if 0, the midpoint of the bounding box + * is considered to return the sibling. If <0, the left sibling is + * favored, if >0, the right sibling + * @private + */ - var r = el.getBoundingClientRect(); - var dx = Math.max(r.left - x, x - r.right); - var dy = Math.max(r.top - y, y - r.bottom); - result.distance = dx * dx + dy * dy; // Only consider children if the target is inside the (horizontal) - // bounds of the element. - // This avoid searching the numerator/denominator when a fraction - // is the last element in the formula. + }, { + key: "_pathFromPoint", + value: function _pathFromPoint(x, y, options) { + options = options || {}; + options.bias = options.bias || 0; + var result; // Try to find the deepest element that is near the point that was + // clicked on (the point could be outside of the element) + + var nearest = nearestElementFromPoint(this.field, x, y); + var el = nearest.element; + var id = el ? el.getAttribute('data-atom-id') : null; + + if (id) { + // Let's find the atom that has a matching ID with the element that + // was clicked on (or near) + var paths = this.mathlist.filter(function (_path, atom) { + // If the atom allows children to be selected, match only if + // the ID of the atom matches the one we're looking for. + if (!atom.captureSelection) { + return atom.id === id; + } // If the atom does not allow children to be selected + // (captureSelection === true), the element matches if any of + // its children has an ID that matches. + + + return atom.filter(function (childAtom) { + return childAtom.id === id; + }).length > 0; + }); - considerChildren = x >= r.left && x <= r.right; - } + if (paths && paths.length > 0) { + // (There should be exactly one atom that matches this ID...) + // Set the result to the path to this atom + result = _editorMathpath.default.pathFromString(paths[0]).path; - if (considerChildren && el.children) { - Array.from(el.children).forEach(function (child) { - var nearest = nearestElementFromPoint(child, x, y); + if (options.bias === 0) { + // If the point clicked is to the left of the vertical midline, + // adjust the path to *before* the atom (i.e. after the + // preceding atom) + var bounds = el.getBoundingClientRect(); - if (nearest.element && nearest.distance <= result.distance) { - result = nearest; + if (x < bounds.left + bounds.width / 2 && !el.classList.contains('ML__placeholder')) { + result[result.length - 1].offset = Math.max(0, result[result.length - 1].offset - 1); + } + } else if (options.bias < 0) { + result[result.length - 1].offset = Math.min(this.mathlist.siblings().length - 1, Math.max(0, result[result.length - 1].offset + options.bias)); + } + } } - }); - } - return result; -} -/** - * @param {number} x - * @param {number} y - * @param {object} options - * @param {boolean} options.bias if 0, the midpoint of the bounding box - * is considered to return the sibling. If <0, the left sibling is - * favored, if >0, the right sibling - */ + return result; + } + }, { + key: "_onPointerDown", + value: function _onPointerDown(evt) { + var that = this; + var anchor; + var trackingPointer = false; + var trackingWords = false; + var dirty = false; // If a mouse button other than the main one was pressed, return + + if (evt.buttons !== 1) { + return; + } + function endPointerTracking(evt) { + if (window.PointerEvent) { + off(that.field, 'pointermove', onPointerMove); + off(that.field, 'pointerend pointerleave pointercancel', endPointerTracking); // off(window, 'pointermove', onPointerMove); + // off(window, 'pointerup blur', endPointerTracking); -MathField.prototype._pathFromPoint = function (x, y, options) { - options = options || {}; - options.bias = options.bias || 0; - var result; // Try to find the deepest element that is near the point that was - // clicked on (the point could be outside of the element) - - var nearest = nearestElementFromPoint(this.field, x, y); - var el = nearest.element; - var id = el ? el.getAttribute('data-atom-id') : null; - - if (id) { - // Let's find the atom that has a matching ID with the element that - // was clicked on (or near) - var paths = this.mathlist.filter(function (_path, atom) { - // If the atom allows children to be selected, match only if - // the ID of the atom matches the one we're looking for. - if (!atom.captureSelection) { - return atom.id === id; - } // If the atom does not allow children to be selected - // (captureSelection === true), the element matches if any of - // its children has an ID that matches. - - - return atom.filter(function (childAtom) { - return childAtom.id === id; - }).length > 0; - }); + that.field.releasePointerCapture(evt.pointerId); + } else { + off(that.field, 'touchmove', onPointerMove); + off(that.field, 'touchend touchleave', endPointerTracking); + off(window, 'mousemove', onPointerMove); + off(window, 'mouseup blur', endPointerTracking); + } - if (paths && paths.length > 0) { - // (There should be exactly one atom that matches this ID...) - // Set the result to the path to this atom - result = _editorMathpath.default.pathFromString(paths[0]).path; + trackingPointer = false; + clearInterval(scrollInterval); + that.element.querySelectorAll('.ML__scroller').forEach(function (x) { + return x.parentNode.removeChild(x); + }); + evt.preventDefault(); + evt.stopPropagation(); + } - if (options.bias === 0) { - // If the point clicked is to the left of the vertical midline, - // adjust the path to *before* the atom (i.e. after the - // preceding atom) - var bounds = el.getBoundingClientRect(); - - if (x < bounds.left + bounds.width / 2 && !el.classList.contains('ML__placeholder')) { - result[result.length - 1].offset = Math.max(0, result[result.length - 1].offset - 1); + var scrollLeft = false; + var scrollRight = false; + var scrollInterval = setInterval(function () { + if (scrollLeft) { + that.field.scroll({ + top: 0, + left: that.field.scrollLeft - 16 + }); + } else if (scrollRight) { + that.field.scroll({ + top: 0, + left: that.field.scrollLeft + 16 + }); } - } else if (options.bias < 0) { - result[result.length - 1].offset = Math.min(this.mathlist.siblings().length - 1, Math.max(0, result[result.length - 1].offset + options.bias)); - } - } - } + }, 32); - return result; -}; + function onPointerMove(evt) { + var x = evt.touches ? evt.touches[0].clientX : evt.clientX; + var y = evt.touches ? evt.touches[0].clientY : evt.clientY; // Ignore events that are within small spatial and temporal bounds + // of the pointer down -var lastTap; -var tapCount = 0; + var hysteresis = evt.pointerType === 'touch' ? 20 : 5; -MathField.prototype._onPointerDown = function (evt) { - var that = this; - var anchor; - var trackingPointer = false; - var trackingWords = false; - var dirty = false; // If a mouse button other than the main one was pressed, return + if (Date.now() < anchorTime + 500 && Math.abs(anchorX - x) < hysteresis && Math.abs(anchorY - y) < hysteresis) { + evt.preventDefault(); + evt.stopPropagation(); + return; + } - if (evt.buttons !== 1) return; + var fieldBounds = that.field.getBoundingClientRect(); + scrollRight = x > fieldBounds.right; + scrollLeft = x < fieldBounds.left; + var actualAnchor = anchor; - function endPointerTracking(evt) { - if (window.PointerEvent) { - off(that.field, 'pointermove', onPointerMove); - off(that.field, 'pointerend pointerleave pointercancel', endPointerTracking); // off(window, 'pointermove', onPointerMove); - // off(window, 'pointerup blur', endPointerTracking); + if (window.PointerEvent) { + if (!evt.isPrimary) { + actualAnchor = that._pathFromPoint(evt.clientX, evt.clientY, { + bias: 0 + }); + } + } else { + if (evt.touches && evt.touches.length === 2) { + actualAnchor = that._pathFromPoint(evt.touches[1].clientX, evt.touches[1].clientY, { + bias: 0 + }); + } + } - that.field.releasePointerCapture(evt.pointerId); - } else { - off(that.field, 'touchmove', onPointerMove); - off(that.field, 'touchend touchleave', endPointerTracking); - off(window, 'mousemove', onPointerMove); - off(window, 'mouseup blur', endPointerTracking); - } + var focus = that._pathFromPoint(x, y, { + bias: x <= anchorX ? x === anchorX ? 0 : -1 : +1 + }); - trackingPointer = false; - clearInterval(scrollInterval); - that.element.querySelectorAll('.ML__scroller').forEach(function (x) { - return x.parentNode.removeChild(x); - }); - evt.preventDefault(); - evt.stopPropagation(); - } + if (focus && that.mathlist.setRange(actualAnchor, focus, { + extendToWordBoundary: trackingWords + })) { + // Re-render if the range has actually changed + that._requestUpdate(); + } // Prevent synthetic mouseMove event when this is a touch event - var scrollLeft = false; - var scrollRight = false; - var scrollInterval = setInterval(function () { - if (scrollLeft) { - that.field.scroll({ - top: 0, - left: that.field.scrollLeft - 16 - }); - } else if (scrollRight) { - that.field.scroll({ - top: 0, - left: that.field.scrollLeft + 16 - }); - } - }, 32); - function onPointerMove(evt) { - var x = evt.touches ? evt.touches[0].clientX : evt.clientX; - var y = evt.touches ? evt.touches[0].clientY : evt.clientY; // Ignore events that are within small spatial and temporal bounds - // of the pointer down + evt.preventDefault(); + evt.stopPropagation(); + } - var hysteresis = evt.pointerType === 'touch' ? 20 : 5; + var anchorX = evt.touches ? evt.touches[0].clientX : evt.clientX; + var anchorY = evt.touches ? evt.touches[0].clientY : evt.clientY; + var anchorTime = Date.now(); // Calculate the tap count - if (Date.now() < anchorTime + 500 && Math.abs(anchorX - x) < hysteresis && Math.abs(anchorY - y) < hysteresis) { - evt.preventDefault(); - evt.stopPropagation(); - return; - } + if (lastTap && Math.abs(lastTap.x - anchorX) < 5 && Math.abs(lastTap.y - anchorY) < 5 && Date.now() < lastTap.time + 500) { + tapCount += 1; + lastTap.time = anchorTime; + } else { + lastTap = { + x: anchorX, + y: anchorY, + time: anchorTime + }; + tapCount = 1; + } - var fieldBounds = that.field.getBoundingClientRect(); - scrollRight = x > fieldBounds.right; - scrollLeft = x < fieldBounds.left; - var actualAnchor = anchor; + var bounds = this.field.getBoundingClientRect(); + + if (anchorX >= bounds.left && anchorX <= bounds.right && anchorY >= bounds.top && anchorY <= bounds.bottom) { + // Create divs to block out pointer tracking to the left and right of + // the math field (to avoid triggering the hover of the virtual + // keyboard toggle, for example) + var div = document.createElement('div'); + div.className = 'ML__scroller'; + this.element.appendChild(div); + div.style.left = bounds.left - 200 + 'px'; + div = document.createElement('div'); + div.className = 'ML__scroller'; + this.element.appendChild(div); + div.style.left = bounds.right + 'px'; // Focus the math field + + if (!this.$hasFocus()) { + dirty = true; + + if (this.textarea.focus) { + this.textarea.focus(); + } + } // Clicking or tapping the field resets the keystroke buffer and + // smart mode - if (window.PointerEvent) { - if (!evt.isPrimary) { - actualAnchor = that._pathFromPoint(evt.clientX, evt.clientY, { - bias: 0 - }); - } - } else { - if (evt.touches && evt.touches.length === 2) { - actualAnchor = that._pathFromPoint(evt.touches[1].clientX, evt.touches[1].clientY, { + + this._resetKeystrokeBuffer(); + + this.smartModeSuppressed = false; + anchor = this._pathFromPoint(anchorX, anchorY, { bias: 0 }); - } - } - var focus = that._pathFromPoint(x, y, { - bias: x <= anchorX ? x === anchorX ? 0 : -1 : +1 - }); + if (anchor) { + if (evt.shiftKey) { + // Extend the selection if the shift-key is down + this.mathlist.setRange(this.mathlist.path, anchor); + anchor = _editorMathpath.default.clone(this.mathlist.path); + anchor[anchor.length - 1].offset -= 1; + } else { + this.mathlist.setPath(anchor, 0); + } // The selection has changed, so we'll need to re-render - if (focus && that.mathlist.setRange(actualAnchor, focus, { - extendToWordBoundary: trackingWords - })) { - // Re-render if the range has actually changed - that._requestUpdate(); - } // Prevent synthetic mouseMove event when this is a touch event + dirty = true; // Reset any user-specified style - evt.preventDefault(); - evt.stopPropagation(); - } + this.style = {}; // evt.detail contains the number of consecutive clicks + // for double-click, triple-click, etc... + // (note that evt.detail is not set when using pointerEvent) - var anchorX = evt.touches ? evt.touches[0].clientX : evt.clientX; - var anchorY = evt.touches ? evt.touches[0].clientY : evt.clientY; - var anchorTime = Date.now(); // Calculate the tap count + if (evt.detail === 3 || tapCount > 2) { + endPointerTracking(evt); - if (lastTap && Math.abs(lastTap.x - anchorX) < 5 && Math.abs(lastTap.y - anchorY) < 5 && Date.now() < lastTap.time + 500) { - tapCount += 1; - lastTap.time = anchorTime; - } else { - lastTap = { - x: anchorX, - y: anchorY, - time: anchorTime - }; - tapCount = 1; - } + if (evt.detail === 3 || tapCount === 3) { + // This is a triple-click + this.mathlist.selectAll_(); + } + } else if (!trackingPointer) { + trackingPointer = true; - var bounds = this.field.getBoundingClientRect(); - - if (anchorX >= bounds.left && anchorX <= bounds.right && anchorY >= bounds.top && anchorY <= bounds.bottom) { - // Create divs to block out pointer tracking to the left and right of - // the math field (to avoid triggering the hover of the virtual - // keyboard toggle, for example) - var div = document.createElement('div'); - div.className = 'ML__scroller'; - this.element.appendChild(div); - div.style.left = bounds.left - 200 + 'px'; - div = document.createElement('div'); - div.className = 'ML__scroller'; - this.element.appendChild(div); - div.style.left = bounds.right + 'px'; // Focus the math field - - if (!this.hasFocus()) { - dirty = true; - if (this.textarea.focus) this.textarea.focus(); - } // Clicking or tapping the field resets the keystroke buffer and - // smart mode - - - this._resetKeystrokeBuffer(); - - this.smartModeSuppressed = false; - anchor = this._pathFromPoint(anchorX, anchorY, { - bias: 0 - }); + if (window.PointerEvent) { + on(that.field, 'pointermove', onPointerMove); + on(that.field, 'pointerend pointercancel pointerup', endPointerTracking); + that.field.setPointerCapture(evt.pointerId); + } else { + on(window, 'blur', endPointerTracking); + + if (evt.touches) { + // To receive the subsequent touchmove/touch, need to + // listen to this evt.target. + // This was a touch event + on(evt.target, 'touchmove', onPointerMove); + on(evt.target, 'touchend', endPointerTracking); + } else { + on(window, 'mousemove', onPointerMove); + on(window, 'mouseup', endPointerTracking); + } + } - if (anchor) { - if (evt.shiftKey) { - // Extend the selection if the shift-key is down - this.mathlist.setRange(this.mathlist.path, anchor); - anchor = _editorMathpath.default.clone(this.mathlist.path); - anchor[anchor.length - 1].offset -= 1; + if (evt.detail === 2 || tapCount === 2) { + // This is a double-click + trackingWords = true; + this.mathlist.selectGroup_(); + } + } + } } else { - this.mathlist.setPath(anchor, 0); - } // The selection has changed, so we'll need to re-render + lastTap = null; + } + if (dirty) { + this._requestUpdate(); + } // Prevent the browser from handling, in particular when this is a + // touch event prevent the synthetic mouseDown event from being generated - dirty = true; // Reset any user-specified style - this.style = {}; // evt.detail contains the number of consecutive clicks - // for double-click, triple-click, etc... - // (note that evt.detail is not set when using pointerEvent) + evt.preventDefault(); + } + }, { + key: "_onSelectionDidChange", + value: function _onSelectionDidChange() { + // Every atom before the new caret position is now committed + this.mathlist.commitCommandStringBeforeInsertionPoint(); // If the selection is not collapsed, put it in the textarea + // This will allow cut/copy to work. + + var result = ''; + this.mathlist.forEachSelected(function (atom) { + result += atom.toLatex(); + }); - if (evt.detail === 3 || tapCount > 2) { - endPointerTracking(evt); + if (result) { + this.textarea.value = result; // The textarea may be a span (on mobile, for example), so check that + // it has a select() before calling it. - if (evt.detail === 3 || tapCount === 3) { - // This is a triple-click - this.mathlist.selectAll_(); + if (this.$hasFocus() && this.textarea.select) { + this.textarea.select(); } - } else if (!trackingPointer) { - trackingPointer = true; + } else { + this.textarea.value = ''; + this.textarea.setAttribute('aria-label', ''); + } // Update the mode - if (window.PointerEvent) { - on(that.field, 'pointermove', onPointerMove); - on(that.field, 'pointerend pointercancel pointerup', endPointerTracking); - that.field.setPointerCapture(evt.pointerId); - } else { - on(window, 'blur', endPointerTracking); - - if (evt.touches) { - // To receive the subsequent touchmove/touch, need to - // listen to this evt.target. - // This was a touch event - on(evt.target, 'touchmove', onPointerMove); - on(evt.target, 'touchend', endPointerTracking); - } else { - on(window, 'mousemove', onPointerMove); - on(window, 'mouseup', endPointerTracking); - } + + { + var previousMode = this.mode; + this.mode = this.mathlist.anchorMode() || this.config.defaultMode; + + if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') { + this.config.onModeChange(this, this.mode); } - if (evt.detail === 2 || tapCount === 2) { - // This is a double-click - trackingWords = true; - this.mathlist.selectGroup_(); + if (previousMode === 'command' && this.mode !== 'command') { + _editorPopover.default.hidePopover(this); + + this.mathlist.removeCommandString(); } + } // Defer the updating of the popover position: we'll need the tree to be + // re-rendered first to get an updated caret position + + _editorPopover.default.updatePopoverPosition(this, { + deferred: true + }); // Invoke client handlers, if provided. + + + if (typeof this.config.onSelectionDidChange === 'function') { + this.config.onSelectionDidChange(this); } } - } else { - lastTap = null; - } + }, { + key: "_onContentDidChange", + value: function _onContentDidChange() { + if (this.undoManager.canRedo()) { + this.element.classList.add('can-redo'); + } else { + this.element.classList.remove('can-redo'); + } - if (dirty) this._requestUpdate(); // Prevent the browser from handling, in particular when this is a - // touch event prevent the synthetic mouseDown event from being generated + if (this.undoManager.canUndo()) { + this.element.classList.add('can-undo'); + } else { + this.element.classList.remove('can-undo'); + } - evt.preventDefault(); -}; + if (typeof this.config.onContentDidChange === 'function') { + this.config.onContentDidChange(this); + } + } + /* Returns the speech text of the next atom after the selection or + * an 'end of' phrasing based on what structure we are at the end of + */ -MathField.prototype._onSelectionDidChange = function () { - // Every atom before the new caret position is now committed - this.mathlist.commitCommandStringBeforeInsertionPoint(); // If the selection is not collapsed, put it in the textarea - // This will allow cut/copy to work. + }, { + key: "_nextAtomSpeechText", + value: function _nextAtomSpeechText(oldMathlist) { + function relation(parent, leaf) { + var EXPR_NAME = { + // 'array': 'should not happen', + 'numer': 'numerator', + 'denom': 'denominator', + 'index': 'index', + 'body': 'parent', + 'subscript': 'subscript', + 'superscript': 'superscript' + }; + var PARENT_NAME = { + 'enclose': 'cross out', + 'leftright': 'fence', + 'surd': 'square root', + 'root': 'math field' + }; + return leaf.relation === 'body' ? PARENT_NAME[parent.type] : EXPR_NAME[leaf.relation]; + } - var result = ''; - this.mathlist.forEachSelected(function (atom) { - result += atom.toLatex(); - }); + var oldPath = oldMathlist ? oldMathlist.path : []; + var path = this.mathlist.path; + var leaf = path[path.length - 1]; + var result = ''; - if (result) { - this.textarea.value = result; // The textarea may be a span (on mobile, for example), so check that - // it has a select() before calling it. + while (oldPath.length > path.length) { + result += 'out of ' + relation(oldMathlist.parent(), oldPath[oldPath.length - 1]) + '; '; + oldPath.pop(); + } - if (this.hasFocus() && this.textarea.select) { - this.textarea.select(); - } - } else { - this.textarea.value = ''; - this.textarea.setAttribute('aria-label', ''); - } // Update the mode + if (!this.mathlist.isCollapsed()) { + return speakableText(this, '', this.mathlist.getSelectedAtoms()); + } // announce start of denominator, etc - { - var previousMode = this.mode; - this.mode = this.mathlist.anchorMode() || this.config.defaultMode; + var relationName = relation(this.mathlist.parent(), leaf); - if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') { - this.config.onModeChange(this, this.mode); - } + if (leaf.offset === 0) { + result += (relationName ? 'start of ' + relationName : 'unknown') + ': '; + } - if (previousMode === 'command' && this.mode !== 'command') { - _editorPopover.default.hidePopover(this); + var atom = this.mathlist.sibling(Math.max(1, this.mathlist.extent)); + + if (atom) { + result += speakableText(this, '', atom); + } else if (leaf.offset !== 0) { + // don't say both start and end + result += relationName ? 'end of ' + relationName : 'unknown'; + } - this.mathlist.removeCommandString(); + return result; + } + }, { + key: "_announce", + value: function _announce(command, mathlist, atoms) { + if (typeof this.config.onAnnounce === 'function') { + this.config.onAnnounce(this, command, mathlist, atoms); + } } - } // Defer the updating of the popover position: we'll need the tree to be - // re-rendered first to get an updated caret position + }, { + key: "_onFocus", + value: function _onFocus() { + if (this.blurred) { + this.blurred = false; // The textarea may be a span (on mobile, for example), so check that + // it has a focus() before calling it. + + if (this.textarea.focus) { + this.textarea.focus(); + } - _editorPopover.default.updatePopoverPosition(this, { - deferred: true - }); // Invoke client handlers, if provided. + if (this.config.virtualKeyboardMode === 'onfocus') { + this.showVirtualKeyboard_(); + } + _editorPopover.default.updatePopoverPosition(this); - if (typeof this.config.onSelectionDidChange === 'function') { - this.config.onSelectionDidChange(this); - } -}; + if (this.config.onFocus) { + this.config.onFocus(this); + } -MathField.prototype._onContentDidChange = function () { - if (this.undoManager.canRedo()) { - this.element.classList.add('can-redo'); - } else { - this.element.classList.remove('can-redo'); - } + this._requestUpdate(); + } + } + }, { + key: "_onBlur", + value: function _onBlur() { + if (!this.blurred) { + this.blurred = true; + this.ariaLiveText.textContent = ''; + + if (this.config.virtualKeyboardMode === 'onfocus') { + this.hideVirtualKeyboard_(); + } - if (this.undoManager.canUndo()) { - this.element.classList.add('can-undo'); - } else { - this.element.classList.remove('can-undo'); - } + this.complete_({ + discard: true + }); - if (typeof this.config.onContentDidChange === 'function') { - this.config.onContentDidChange(this); - } -}; -/* Returns the speech text of the next atom after the selection or - * an 'end of' phrasing based on what structure we are at the end of - */ + this._requestUpdate(); + + if (this.config.onBlur) { + this.config.onBlur(this); + } + } + } + }, { + key: "_onResize", + value: function _onResize() { + this.element.classList.remove('ML__isNarrowWidth', 'ML__isWideWidth', 'ML__isExtendedWidth'); + + if (window.innerWidth >= 1024) { + this.element.classList.add('ML__isExtendedWidth'); + } else if (window.innerWidth >= 768) { + this.element.classList.add('ML__isWideWidth'); + } else { + this.element.classList.add('ML__isNarrowWidth'); + } + _editorPopover.default.updatePopoverPosition(this); + } + }, { + key: "toggleKeystrokeCaption_", + value: function toggleKeystrokeCaption_() { + this.keystrokeCaptionVisible = !this.keystrokeCaptionVisible; + this.keystrokeCaption.innerHTML = ''; -MathField.prototype._nextAtomSpeechText = function (oldMathlist) { - function relation(parent, leaf) { - var EXPR_NAME = { - // 'array': 'should not happen', - 'numer': 'numerator', - 'denom': 'denominator', - 'index': 'index', - 'body': 'parent', - 'subscript': 'subscript', - 'superscript': 'superscript' - }; - var PARENT_NAME = { - 'enclose': 'cross out', - // FIX -- should base on type of enclose - 'leftright': 'fence', - 'surd': 'square root', - 'root': 'math field' - }; - return leaf.relation === 'body' ? PARENT_NAME[parent.type] : EXPR_NAME[leaf.relation]; - } + if (!this.keystrokeCaptionVisible) { + this.keystrokeCaption.style.visibility = 'hidden'; + } + } + }, { + key: "_showKeystroke", + value: function _showKeystroke(keystroke) { + var vb = this.keystrokeCaption; + + if (vb && this.keystrokeCaptionVisible) { + var bounds = this.element.getBoundingClientRect(); + vb.style.left = bounds.left + 'px'; + vb.style.top = bounds.top - 64 + 'px'; + vb.innerHTML = '' + (_editorShortcuts.default.stringify(keystroke) || keystroke) + '' + vb.innerHTML; + vb.style.visibility = 'visible'; + setTimeout(function () { + if (vb.childNodes.length > 0) { + vb.removeChild(vb.childNodes[vb.childNodes.length - 1]); + } - var oldPath = oldMathlist ? oldMathlist.path : []; - var path = this.mathlist.path; - var leaf = path[path.length - 1]; - var result = ''; + if (vb.childNodes.length === 0) { + vb.style.visibility = 'hidden'; + } + }, 3000); + } + } + /** + * @param {string|string[]} command - A selector, or an array whose first element + * is a selector, and whose subsequent elements are arguments to the selector. + * Note that selectors do not include a final "_". They can be passed either + * in camelCase or kebab-case. So: + * ```javascript + * mf.$perform('selectAll'); + * mf.$perform('select-all'); + * ``` + * both calls are valid and invoke the same selector. + * + * @method MathField#$perform + */ - while (oldPath.length > path.length) { - result += 'out of ' + relation(oldMathlist.parent(), oldPath[oldPath.length - 1]) + '; '; - oldPath.pop(); - } + }, { + key: "$perform", + value: function $perform(command) { + if (!command) { + return false; + } - if (!this.mathlist.isCollapsed()) { - return speakableText(this, '', this.mathlist.getSelectedAtoms()); - } // announce start of denominator, etc + var handled = false; + var selector; + var args = []; + var dirty = false; + if (Array.isArray(command)) { + selector = command[0]; + args = command.slice(1); + } else { + selector = command; + } // Convert kebab case (like-this) to camel case (likeThis). - var relationName = relation(this.mathlist.parent(), leaf); - if (leaf.offset === 0) { - result += (relationName ? 'start of ' + relationName : 'unknown') + ': '; - } + selector = selector.replace(/-\w/g, function (m) { + return m[1].toUpperCase(); + }); + selector += '_'; - var atom = this.mathlist.sibling(Math.max(1, this.mathlist.extent)); + if (typeof this.mathlist[selector] === 'function') { + var _this$mathlist; - if (atom) { - result += speakableText(this, '', atom); - } else if (leaf.offset !== 0) { - // don't say both start and end - result += relationName ? 'end of ' + relationName : 'unknown'; - } + if (/^(delete|transpose|add)/.test(selector)) { + this._resetKeystrokeBuffer(); + } - return result; -}; + if (/^(delete|transpose|add)/.test(selector) && this.mode !== 'command') { + // Update the undo state to account for the current selection + this.undoManager.pop(); + this.undoManager.snapshot(this.config); + } -function speakableText(mathfield, prefix, atoms) { - var config = Object.assign({}, mathfield.config); - config.textToSpeechMarkup = ''; - return prefix + _mathAtom.default.toSpeakableText(atoms, config); -} -/** - * Announce a change in selection or content via the aria-live region. - * This is the default implementation for this function. It can be overridden - * via `config.onAnnounce` - * @param {object} target typically, a MathField - * @param {string} command the command that invoked the change - * @param {Atom[]} [oldMathlist=[]] the previous value of mathlist before the change - * @param {Atom[]} [atomsToSpeak=[] ] - * @method MathField#_onAnnounce - * @private - */ + (_this$mathlist = this.mathlist)[selector].apply(_this$mathlist, _toConsumableArray(args)); + if (/^(delete|transpose|add)/.test(selector) && this.mode !== 'command') { + this.undoManager.snapshot(this.config); + } -function _onAnnounce(target, command, oldMathlist, atomsToSpeak) { - //** Fix: the focus is the end of the selection, so it is before where we want it - var liveText = ''; // const command = moveAmount > 0 ? "right" : "left"; + if (/^(delete)/.test(selector) && this.mode === 'command') { + var _command = this.mathlist.extractCommandStringAroundInsertionPoint(); - if (command === 'plonk') { - // Use this sound to indicate (minor) errors, for - // example when a command has no effect. - if (target.plonkSound) { - target.plonkSound.load(); - target.plonkSound.play().catch(function (err) { - return console.warn(err); - }); - } // As a side effect, reset the keystroke buffer + var suggestions = _definitions.default.suggest(_command); + if (suggestions.length === 0) { + _editorPopover.default.hidePopover(this); + } else { + _editorPopover.default.showPopoverWithLatex(this, suggestions[0].match, suggestions.length > 1); + } + } - target._resetKeystrokeBuffer(); - } else if (command === 'delete') { - liveText = speakableText(target, 'deleted: ', atomsToSpeak); //*** FIX: could also be moveUp or moveDown -- do something different like provide context??? - } else if (command === 'focus' || /move/.test(command)) { - //*** FIX -- should be xxx selected/unselected */ - liveText = (target.mathlist.isCollapsed() ? '' : 'selected: ') + target._nextAtomSpeechText(oldMathlist); - } else if (command === 'replacement') { - // announce the contents - liveText = speakableText(target, '', target.mathlist.sibling(0)); - } else if (command === 'line') { - // announce the current line -- currently that's everything - liveText = speakableText(target, '', target.mathlist.root); - target.accessibleNode.innerHTML = '' + _mathAtom.default.toMathML(target.mathlist.root, target.config) + ''; - target.textarea.setAttribute('aria-label', 'after: ' + liveText); - /*** FIX -- testing hack for setting braille ***/ - // target.accessibleNode.focus(); - // console.log("before sleep"); - // sleep(1000).then(() => { - // target.textarea.focus(); - // console.log("after sleep"); - // }); - } else { - liveText = atomsToSpeak ? speakableText(target, command + " ", atomsToSpeak) : command; - } // aria-live regions are only spoken when it changes; force a change by - // alternately using nonbreaking space or narrow nonbreaking space + dirty = true; + handled = true; + } else if (typeof this[selector] === 'function') { + dirty = this[selector].apply(this, _toConsumableArray(args)); + handled = true; + } // If the command changed the selection so that it is no longer + // collapsed, or if it was an editing command, reset the inline + // shortcut buffer and the user style - var ariaLiveChangeHack = /\u00a0/.test(target.ariaLiveText.textContent) ? " \u202F " : " \xA0 "; - target.ariaLiveText.textContent = liveText + ariaLiveChangeHack; // this.textarea.setAttribute('aria-label', liveText + ariaLiveChangeHack); -} + if (!this.mathlist.isCollapsed() || /^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(selector)) { + this._resetKeystrokeBuffer(); -MathField.prototype._announce = function (command, mathlist, atoms) { - if (typeof this.config.onAnnounce === 'function') { - this.config.onAnnounce(this, command, mathlist, atoms); - } -}; + this.style = {}; + } // Render the mathlist -MathField.prototype._onFocus = function () { - if (this.blurred) { - this.blurred = false; // The textarea may be a span (on mobile, for example), so check that - // it has a focus() before calling it. - if (this.textarea.focus) this.textarea.focus(); + if (dirty) { + this._requestUpdate(); + } - if (this.config.virtualKeyboardMode === 'onfocus') { - this.showVirtualKeyboard_(); + return handled; } + /** + * Perform a command, but: + * * focus the mathfield + * * provide haptic and audio feedback + * This is used by the virtual keyboard when command keys (delete, arrows, etc..) + * are pressed. + * @param {string} command + * @private + */ - _editorPopover.default.updatePopoverPosition(this); - - if (this.config.onFocus) this.config.onFocus(this); + }, { + key: "performWithFeedback_", + value: function performWithFeedback_(command) { + this.$focus(); - this._requestUpdate(); - } -}; + if (this.config.keypressVibration && navigator.vibrate) { + navigator.vibrate(HAPTIC_FEEDBACK_DURATION); + } // Convert kebab case to camel case. -MathField.prototype._onBlur = function () { - if (!this.blurred) { - this.blurred = true; - this.ariaLiveText.textContent = ''; - if (this.config.virtualKeyboardMode === 'onfocus') { - this.hideVirtualKeyboard_(); - } + command = command.replace(/-\w/g, function (m) { + return m[1].toUpperCase(); + }); - this.complete_({ - discard: true - }); + if (command === 'moveToNextPlaceholder' || command === 'moveToPreviousPlaceholder' || command === 'complete') { + if (this.returnKeypressSound) { + this.returnKeypressSound.load(); + this.returnKeypressSound.play().catch(function (err) { + return console.warn(err); + }); + } else if (this.keypressSound) { + this.keypressSound.load(); + this.keypressSound.play().catch(function (err) { + return console.warn(err); + }); + } + } else if (command === 'deletePreviousChar' || command === 'deleteNextChar' || command === 'deletePreviousWord' || command === 'deleteNextWord' || command === 'deleteToGroupStart' || command === 'deleteToGroupEnd' || command === 'deleteToMathFieldStart' || command === 'deleteToMathFieldEnd') { + if (this.deleteKeypressSound) { + this.deleteKeypressSound.load(); + this.deleteKeypressSound.play().catch(function (err) { + return console.warn(err); + }); + } else if (this.keypressSound) { + this.keypressSound.load(); + this.keypressSound.play().catch(function (err) { + return console.warn(err); + }); + } + } else if (this.keypressSound) { + this.keypressSound.load(); + this.keypressSound.play().catch(function (err) { + return console.warn(err); + }); + } - this._requestUpdate(); + return this.$perform(command); + } + /** + * Convert the atoms before the anchor to 'text' mode + * @param {number} count - how many atoms back to look at + * @param {function} until - callback to indicate when to stop + * @private + */ - if (this.config.onBlur) this.config.onBlur(this); - } -}; + }, { + key: "convertLastAtomsToText_", + value: function convertLastAtomsToText_(count, until) { + if (typeof count === 'function') { + until = count; + count = Infinity; + } -MathField.prototype._onResize = function () { - this.element.classList.remove('ML__isNarrowWidth', 'ML__isWideWidth', 'ML__isExtendedWidth'); + if (count === undefined) { + count = Infinity; + } - if (window.innerWidth >= 1024) { - this.element.classList.add('ML__isExtendedWidth'); - } else if (window.innerWidth >= 768) { - this.element.classList.add('ML__isWideWidth'); - } else { - this.element.classList.add('ML__isNarrowWidth'); - } + var i = 0; + var done = false; + this.mathlist.contentWillChange(); - _editorPopover.default.updatePopoverPosition(this); -}; + while (!done) { + var atom = this.mathlist.sibling(i); + done = count === 0 || !atom || atom.mode !== 'math' || !(/mord|textord|mpunct/.test(atom.type) || atom.type === 'mop' && /[a-zA-Z]+/.test(atom.body)) || atom.superscript || atom.subscript || until && !until(atom); -MathField.prototype.toggleKeystrokeCaption_ = function () { - this.keystrokeCaptionVisible = !this.keystrokeCaptionVisible; - this.keystrokeCaption.innerHTML = ''; + if (!done) { + atom.applyStyle({ + mode: 'text' + }); + atom.latex = atom.body; + } - if (!this.keystrokeCaptionVisible) { - this.keystrokeCaption.style.visibility = 'hidden'; - } -}; + i -= 1; + count -= 1; + } -MathField.prototype._showKeystroke = function (keystroke) { - var vb = this.keystrokeCaption; + this.mathlist.contentDidChange(); + } + /** + * Convert the atoms before the anchor to 'math' mode 'mord' + * @param {number} count - how many atoms back to look at + * @param {function} until - callback to indicate when to stop + * @private + */ - if (vb && this.keystrokeCaptionVisible) { - var bounds = this.element.getBoundingClientRect(); - vb.style.left = bounds.left + 'px'; - vb.style.top = bounds.top - 64 + 'px'; - vb.innerHTML = '' + (_editorShortcuts.default.stringify(keystroke) || keystroke) + '' + vb.innerHTML; - vb.style.visibility = 'visible'; - setTimeout(function () { - if (vb.childNodes.length > 0) { - vb.removeChild(vb.childNodes[vb.childNodes.length - 1]); + }, { + key: "convertLastAtomsToMath_", + value: function convertLastAtomsToMath_(count, until) { + if (typeof count === 'function') { + until = count; + count = Infinity; } - if (vb.childNodes.length === 0) { - vb.style.visibility = 'hidden'; + if (count === undefined) { + count = Infinity; } - }, 3000); - } -}; -/** - * @param {string|string[]} command - A selector, or an array whose first element - * is a selector, and whose subsequent elements are arguments to the selector. - * Note that selectors do not include a final "_". They can be passed either - * in camelCase or kebab-case. So: - * ```javascript - * mf.$perform('selectAll'); - * mf.$perform('select-all'); - * ``` - * both calls are valid and invoke the same selector. - * - * @method MathField#$perform - */ + this.mathlist.contentWillChange(); + var i = 0; + var done = false; -MathField.prototype.perform = MathField.prototype.$perform = function (command) { - if (!command) return false; - var handled = false; - var selector; - var args = []; - var dirty = false; + while (!done) { + var atom = this.mathlist.sibling(i); + done = count === 0 || !atom || atom.mode !== 'text' || atom.body === ' ' || until && !until(atom); - if (Array.isArray(command)) { - selector = command[0]; - args = command.slice(1); - } else { - selector = command; - } // Convert kebab case (like-this) to camel case (likeThis). - - - selector = selector.replace(/-\w/g, function (m) { - return m[1].toUpperCase(); - }); - selector += '_'; + if (!done) { + atom.applyStyle({ + mode: 'math', + type: 'mord' + }); + } - if (typeof this.mathlist[selector] === 'function') { - var _this$mathlist; + i -= 1; + count -= 1; + } - if (/^(delete|transpose|add)/.test(selector)) { - this._resetKeystrokeBuffer(); + this.removeIsolatedSpace_(); + this.mathlist.contentDidChange(); } + /** + * Going backwards from the anchor, if a text zone consisting of a single + * space character is found (i.e. it is surrounded by math zone), + * remove it. + * @private + */ - if (/^(delete|transpose|add)/.test(selector) && this.mode !== 'command') { - // Update the undo state to account for the current selection - this.undoManager.pop(); - this.undoManager.snapshot(this.config); + }, { + key: "removeIsolatedSpace_", + value: function removeIsolatedSpace_() { + var i = 0; + + while (this.mathlist.sibling(i) && this.mathlist.sibling(i).mode === 'math') { + i -= 1; + } // If the atom before the last one converted is a + // text mode space, preceded by a math mode atom, + // remove the space + + + if (this.mathlist.sibling(i) && this.mathlist.sibling(i).mode === 'text' && this.mathlist.sibling(i).body === ' ' && (!this.mathlist.sibling(i - 1) || this.mathlist.sibling(i - 1).mode === 'math')) { + this.mathlist.contentWillChange(); + this.mathlist.siblings().splice(i - 1, 1); + this.mathlist.contentDidChange(); // We need to adjust the selection after doing some surgery on the atoms list + // But we don't want to receive selection notification changes + // which could have a side effect of changing the mode :( + + var save = this.mathlist.suppressChangeNotifications; + this.mathlist.suppressChangeNotifications = true; + this.mathlist.setSelection(this.mathlist.anchorOffset() - 1); + this.mathlist.suppressChangeNotifications = save; + } } + /** + * Return the characters before anchor that could potentially be turned + * into text mode. + * This excludes things like 'mop' (e.g. \sin) + * @return {string} + * @method MathField#getTextBeforeAnchor_ + * @private + */ - (_this$mathlist = this.mathlist)[selector].apply(_this$mathlist, _toConsumableArray(args)); + }, { + key: "getTextBeforeAnchor_", + value: function getTextBeforeAnchor_() { + // Going backwards, accumulate + var result = ''; + var i = 0; + var done = false; + + while (!done) { + var atom = this.mathlist.sibling(i); + done = !(atom && (atom.mode === 'text' && !atom.type || atom.mode === 'math' && /mord|textord|mpunct/.test(atom.type))); + + if (!done) { + result = atom.body + result; + } + + i -= 1; + } - if (/^(delete|transpose|add)/.test(selector) && this.mode !== 'command') { - this.undoManager.snapshot(this.config); + return result; } + /** + * Consider whether to switch mode give the content before the anchor + * and the character being input + * + * @param {string} keystroke + * @param {Event} evt - a Event corresponding to the keystroke + * @method MathField#smartMode_ + * @return {boolean} true if the mode should change + * @private + */ - if (/^(delete)/.test(selector) && this.mode === 'command') { - var _command = this.mathlist.extractCommandStringAroundInsertionPoint(); + }, { + key: "smartMode_", + value: function smartMode_(keystroke, evt) { + if (this.smartModeSuppressed) { + return false; + } - var suggestions = _definitions.default.suggest(_command); + if (this.mathlist.endOffset() < this.mathlist.siblings().length - 1) { + return false; + } - if (suggestions.length === 0) { - _editorPopover.default.hidePopover(this); - } else { - _editorPopover.default.showPopoverWithLatex(this, suggestions[0].match, suggestions.length > 1); + if (!evt || evt.ctrlKey || evt.metaKey) { + return false; } - } - dirty = true; - handled = true; - } else if (typeof this[selector] === 'function') { - dirty = this[selector].apply(this, _toConsumableArray(args)); - handled = true; - } // If the command changed the selection so that it is no longer - // collapsed, or if it was an editing command, reset the inline - // shortcut buffer and the user style + var c = _editorKeyboard.default.eventToChar(evt); + if (c.length > 1) { + return false; + } // Backspace, Left, etc... - if (!this.mathlist.isCollapsed() || /^(transpose|paste|complete|((moveToNextChar|moveToPreviousChar|extend).*))_$/.test(selector)) { - this._resetKeystrokeBuffer(); - this.style = {}; - } // Render the mathlist + if (!this.mathlist.isCollapsed()) { + // There is a selection + if (this.mode === 'text') { + if (/[/_^]/.test(c)) { + return true; + } + } + return false; + } - if (dirty) this._requestUpdate(); - return handled; -}; -/** - * Perform a command, but: - * * focus the mathfield - * * provide haptic and audio feedback - * This is used by the virtual keyboard when command keys (delete, arrows, etc..) - * are pressed. - * @param {string} command - */ + var context = this.getTextBeforeAnchor_() + c; + if (this.mode === 'text') { + // We're in text mode. Should we switch to math? + if (keystroke === 'Esc' || /[/\\]/.test(c)) { + // If this is a command for a fraction, + // or the '\' command mode key + // switch to 'math' + return true; + } -MathField.prototype.performWithFeedback_ = function (command) { - this.focus(); + if (/[\^_]/.test(c)) { + // If this is a superscript or subscript + // switch to 'math' + if (/(^|\s)[a-zA-Z][^_]$/.test(context)) { + // If left hand context is a single letter, + // convert it to math + this.convertLastAtomsToMath_(1); + } - if (this.config.keypressVibration && navigator.vibrate) { - navigator.vibrate(HAPTIC_FEEDBACK_DURATION); - } // Convert kebab case to camel case. + return true; + } // If this is a closing matching fence + // switch to 'math' mode - command = command.replace(/-\w/g, function (m) { - return m[1].toUpperCase(); - }); + var lFence = { + ')': '(', + '}': '{', + ']': '[' + }[c]; - if (command === 'moveToNextPlaceholder' || command === 'moveToPreviousPlaceholder' || command === 'complete') { - if (this.returnKeypressSound) { - this.returnKeypressSound.load(); - this.returnKeypressSound.play().catch(function (err) { - return console.warn(err); - }); - } else if (this.keypressSound) { - this.keypressSound.load(); - this.keypressSound.play().catch(function (err) { - return console.warn(err); - }); - } - } else if (command === 'deletePreviousChar' || command === 'deleteNextChar' || command === 'deletePreviousWord' || command === 'deleteNextWord' || command === 'deleteToGroupStart' || command === 'deleteToGroupEnd' || command === 'deleteToMathFieldStart' || command === 'deleteToMathFieldEnd') { - if (this.deleteKeypressSound) { - this.deleteKeypressSound.load(); - this.deleteKeypressSound.play().catch(function (err) { - return console.warn(err); - }); - } else if (this.keypressSound) { - this.keypressSound.load(); - this.keypressSound.play().catch(function (err) { - return console.warn(err); - }); - } - } else if (this.keypressSound) { - this.keypressSound.load(); - this.keypressSound.play().catch(function (err) { - return console.warn(err); - }); - } + if (lFence && this.mathlist.parent() && this.mathlist.parent().type === 'leftright' && this.mathlist.parent().leftDelim === lFence) { + return true; + } - return this.perform(command); -}; -/** - * Convert the atoms before the anchor to 'text' mode - * @param {number} count - how many atoms back to look at - * @param {function} until - callback to indicate when to stop - */ + if (/(^|[^a-zA-Z])(a|I)[ ]$/.test(context)) { + // Single letters that are valid words in the current language + // Do nothing. @todo: localization + return false; + } + if (/[\$\xA2-\xA5\u0E3F\u20A1\u20A4\u20A7-\u20A9\u20AC\u20B1\u20B9\u20BA]/.test(c)) { + // A currency symbol. + // Switch to math mode + return true; + } -MathField.prototype.convertLastAtomsToText_ = function (count, until) { - if (typeof count === 'function') { - until = count; - count = Infinity; - } + if (/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(context)) { + // An isolated letter, followed by a space: + // Convert the letter to math, stay in text mode. + this.convertLastAtomsToMath_(1); + return false; + } - if (count === undefined) count = Infinity; - var i = 0; - var done = false; - this.mathlist.contentWillChange(); + if (/[^0-9]\.[^0-9\s]$/.test(context)) { + // A period followed by something other than space or a digit + // and not preceded by a digit. + // We thought this was a text period, but turns out it's not + // Turn it into a \cdot + this.convertLastAtomsToMath_(1); + var atom = this.mathlist.sibling(0); + atom.body = '⋅'; // centered dot + + atom.autoFontFamily = 'cmr'; + atom.latex = '\\cdot'; + return true; + } - while (!done) { - var atom = this.mathlist.sibling(i); - done = count === 0 || !atom || atom.mode !== 'math' || !(/mord|textord|mpunct/.test(atom.type) || atom.type === 'mop' && /[a-zA-Z]+/.test(atom.body)) || atom.superscript || atom.subscript || until && !until(atom); + if (/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(context)) { + // Single letter (x), followed by a non-letter (>, =...) + this.convertLastAtomsToMath_(1); + return true; + } - if (!done) { - atom.applyStyle({ - mode: 'text' - }); - atom.latex = atom.body; - } + if (/\.[0-9]$/.test(context)) { + // If the new character is a digit, + // and it was preceded by a dot (which may have been converted + // to text) + // turn the dot back into 'math' + this.convertLastAtomsToMath_(1); + return true; + } - i -= 1; - count -= 1; - } + if (/[(][0-9+\-.]$/.test(context)) { + // An open paren followed by a number + // Turn the paren back to math and switch. + this.convertLastAtomsToMath_(1); + return true; + } - this.mathlist.contentDidChange(); -}; -/** - * Convert the atoms before the anchor to 'math' mode 'mord' - * @param {number} count - how many atoms back to look at - * @param {function} until - callback to indicate when to stop - */ + if (/[(][a-z][,;]$/.test(context)) { + // An open paren followed by a single letter, then a "," or ";" + // Turn the paren back and letter to math and switch. + this.convertLastAtomsToMath_(2); + return true; + } // The tests above can look behind and change what had previously + // been entered. Now, let's just look at the typed character. + + + if (/[0-9+\-=><*|]$/.test(c)) { + // If this new character looks like a number, + // or a relational operator (=, <, >) + // or a "*" or "|" + // (note that <=, >=, etc... are handled separately as shortcuts) + // switch to 'math' + this.removeIsolatedSpace_(); + return true; + } + } else { + // We're in math mode. Should we switch to text? + if (keystroke === 'Spacebar') { + this.convertLastAtomsToText_(function (a) { + return /[a-z][:,;.]$/.test(a.body); + }); + return true; + } + if (/[a-zA-Z]{3,}$/.test(context) && !/(dxd|abc|xyz|uvw)$/.test(context)) { + // A sequence of three characters + // (except for some exceptions) + // Convert them to text. + this.convertLastAtomsToText_(function (a) { + return /[a-zA-Z:,;.]/.test(a.body); + }); + return true; + } -MathField.prototype.convertLastAtomsToMath_ = function (count, until) { - if (typeof count === 'function') { - until = count; - count = Infinity; - } + if (/(^|\W)(if|If)$/i.test(context)) { + // @todo localization + this.convertLastAtomsToText_(1); + return true; + } - if (count === undefined) count = Infinity; - this.mathlist.contentWillChange(); - var i = 0; - var done = false; + if (/(\u0393|\u0394|\u0398|\u039B|\u039E|\u03A0|\u03A3|\u03A5|\u03A6|\u03A8|\u03A9|[\u03B1-\u03C9]|\u03D1|\u03D5|\u03D6|\u03F1|\u03F5){3,}$/.test(context) && !/(αβγ)$/.test(context)) { + // A sequence of three *greek* characters + // (except for one exception) + // Convert them to text. + this.convertLastAtomsToText_(function (a) { + return /(:|,|;|(?:[\0-\t\x0B\f\x0E-\u2027\u202A-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])|\u0393|\u0394|\u0398|\u039B|\u039E|\u03A0|\u03A3|\u03A5|\u03A6|\u03A8|\u03A9|[\u03B1-\u03C9]|\u03D1|\u03D5|\u03D6|\u03F1|\u03F5)/.test(a.body); + }); + return true; + } - while (!done) { - var atom = this.mathlist.sibling(i); - done = count === 0 || !atom || atom.mode !== 'text' || atom.body === ' ' || until && !until(atom); + if (/\?|\./.test(c)) { + // If the last character is a period or question mark, + // turn it to 'text' + return true; + } + } - if (!done) { - atom.applyStyle({ - mode: 'math', - type: 'mord' - }); + return false; } + /** + * @param {string} keystroke + * @param {Event} evt - optional, an Event corresponding to the keystroke + * @method MathField#_onKeystroke + * @private + */ - i -= 1; - count -= 1; - } - - this.removeIsolatedSpace_(); - this.mathlist.contentDidChange(); -}; -/** - * Going backwards from the anchor, if a text zone consisting of a single - * space character is found (i.e. it is surrounded by math zone), - * remove it. - */ - + }, { + key: "_onKeystroke", + value: function _onKeystroke(keystroke, evt) { + var _this3 = this; -MathField.prototype.removeIsolatedSpace_ = function () { - var i = 0; + // 1. Display the keystroke in the keystroke panel (if visible) + this._showKeystroke(keystroke); // 2. Reset the timer for the keystroke buffer reset - while (this.mathlist.sibling(i) && this.mathlist.sibling(i).mode === 'math') { - i -= 1; - } // If the atom before the last one converted is a - // text mode space, preceded by a math mode atom, - // remove the space + clearTimeout(this.keystrokeBufferResetTimer); // 3. Give a chance to the custom keystroke handler to intercept the event - if (this.mathlist.sibling(i) && this.mathlist.sibling(i).mode === 'text' && this.mathlist.sibling(i).body === ' ' && (!this.mathlist.sibling(i - 1) || this.mathlist.sibling(i - 1).mode === 'math')) { - this.mathlist.contentWillChange(); - this.mathlist.siblings().splice(i - 1, 1); - this.mathlist.contentDidChange(); // We need to adjust the selection after doing some surgery on the atoms list - // But we don't want to receive selection notification changes - // which could have a side effect of changing the mode :( + if (this.config.onKeystroke && !this.config.onKeystroke(this, keystroke, evt)) { + if (evt && evt.preventDefault) { + evt.preventDefault(); + evt.stopPropagation(); + } - var save = this.mathlist.suppressChangeNotifications; - this.mathlist.suppressChangeNotifications = true; - this.mathlist.setSelection(this.mathlist.anchorOffset() - 1); - this.mathlist.suppressChangeNotifications = save; - } -}; -/** - * Return the characters before anchor that could potentially be turned - * into text mode. - * This excludes things like 'mop' (e.g. \sin) - * @return {string} - * @method MathField#getTextBeforeAnchor_ - * @private - */ + return false; + } // 4. Let's try to find a matching shortcut or command -MathField.prototype.getTextBeforeAnchor_ = function () { - // Going backwards, accumulate - var result = ''; - var i = 0; - var done = false; + var shortcut; + var stateIndex; + var selector; + var resetKeystrokeBuffer = false; // 4.1 Check if the keystroke, prefixed with the previously typed keystrokes, + // would match a long shortcut (i.e. '~~') + // Ignore the key if command or control is pressed (it may be a shortcut, + // see 4.3) - while (!done) { - var atom = this.mathlist.sibling(i); - done = !(atom && (atom.mode === 'text' && !atom.type || atom.mode === 'math' && /mord|textord|mpunct/.test(atom.type))); + if (this.mode !== 'command' && (!evt || !evt.ctrlKey && !evt.metaKey)) { + var c = _editorKeyboard.default.eventToChar(evt); // The Backspace key will be handled as a delete command later (5.4) + // const c = Keyboard.eventToChar(evt); - if (!done) { - result = atom.body + result; - } - i -= 1; - } + if (c !== 'Backspace') { + if (!c || c.length > 1) { + // It was a non-alpha character (PageUp, End, etc...) + this._resetKeystrokeBuffer(); + } else { + // Find the longest substring that matches a shortcut + var candidate = this.keystrokeBuffer + c; + var i = 0; + + while (!shortcut && i < candidate.length) { + var siblings = void 0; + + if (this.keystrokeBufferStates[i]) { + var mathlist = new _editorEditableMathlist.default.EditableMathlist(); + mathlist.root = _mathAtom.default.makeRoot('math', _parser.default.parseTokens(_lexer.default.tokenize(this.keystrokeBufferStates[i].latex), this.config.default, null, this.config.macros)); + mathlist.setPath(this.keystrokeBufferStates[i].selection); + siblings = mathlist.siblings(); + } else { + siblings = this.mathlist.siblings(); + } - return result; -}; -/** - * Consider whether to switch mode give the content before the anchor - * and the character being input - * - * @param {string} keystroke - * @param {Event} evt - a Event corresponding to the keystroke - * @method MathField#smartMode_ - * @return {boolean} true if the mode should change - * @private - */ + shortcut = _editorShortcuts.default.forString(this.mode, siblings, candidate.slice(i), this.config); + i += 1; + } + stateIndex = i - 1; + this.keystrokeBuffer += c; + this.keystrokeBufferStates.push(this.undoManager.save()); -MathField.prototype.smartMode_ = function (keystroke, evt) { - if (this.smartModeSuppressed) return false; - if (this.mathlist.endOffset() < this.mathlist.siblings().length - 1) return false; - if (!evt || evt.ctrlKey || evt.metaKey) return false; + if (_editorShortcuts.default.startsWithString(candidate, this.config).length <= 1) { + resetKeystrokeBuffer = true; + } else { + if (this.config.inlineShortcutTimeout) { + // Set a timer to reset the shortcut buffer + this.keystrokeBufferResetTimer = setTimeout(function () { + _this3._resetKeystrokeBuffer(); + }, this.config.inlineShortcutTimeout); + } + } + } + } + } // 4.2. Should we switch mode? + // Need to check this before determing if there's a valid shortcut + // since if we switch to math mode, we may want to apply the shortcut + // e.g. "slope = rise/run" + + + if (this.config.smartMode) { + var previousMode = this.mode; + + if (shortcut) { + // If we found a shortcut (e.g. "alpha"), + // switch to math mode and insert it + this.mode = 'math'; + } else if (this.smartMode_(keystroke, evt)) { + this.mode = { + 'math': 'text', + 'text': 'math' + }[this.mode]; + selector = ''; + } // Notify of mode change + + + if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') { + this.config.onModeChange(this, this.mode); + } + } // 4.3 Check if this matches a keystroke shortcut + // Need to check this **after** checking for inline shortcuts because + // shift+backquote is a keystroke that inserts "\~"", but "~~" is a + // shortcut for "\approx" and needs to have priority over shift+backquote - var c = _editorKeyboard.default.eventToChar(evt); - if (c.length > 1) return false; // Backspace, Left, etc... + if (!shortcut && !selector) { + selector = _editorShortcuts.default.selectorForKeystroke(this.mode, keystroke); + } // No shortcut :( We're done. - if (!this.mathlist.isCollapsed()) { - // There is a selection - if (this.mode === 'text') { - if (/[/_^]/.test(c)) return true; - } - return false; - } + if (!shortcut && !selector) { + return true; + } // 5. Perform the action matching this shortcut + // 5.1 Remove any error indicator (wavy underline) on the current command + // sequence (if there are any) - var context = this.getTextBeforeAnchor_() + c; - if (this.mode === 'text') { - // We're in text mode. Should we switch to math? - if (keystroke === 'Esc' || /[/\\]/.test(c)) { - // If this is a command for a fraction, - // or the '\' command mode key - // switch to 'math' - return true; - } + this.mathlist.decorateCommandStringAroundInsertionPoint(false); // 5.2 If we have a `moveAfterParent` selector (usually triggered with + // `spacebar), and we're at the end of a smart fence, close the fence with + // an empty (.) right delimiter - if (/[\^_]/.test(c)) { - // If this is a superscript or subscript - // switch to 'math' - if (/(^|\s)[a-zA-Z][^_]$/.test(context)) { - // If left hand context is a single letter, - // convert it to math - this.convertLastAtomsToMath_(1); - } + var parent = this.mathlist.parent(); - return true; - } // If this is a closing matching fence - // switch to 'math' mode + if (selector === 'moveAfterParent' && parent && parent.type === 'leftright' && this.mathlist.endOffset() === this.mathlist.siblings().length - 1 && this.config.smartFence && this.mathlist._insertSmartFence('.')) { + // Pressing the space bar (moveAfterParent selector) when at the end + // of a potential smartfence will close it as a semi-open fence + selector = ''; + this._requestUpdate(); // Re-render the closed smartfence - var lFence = { - ')': '(', - '}': '{', - ']': '[' - }[c]; + } // 5.3 If this is the Spacebar and we're just before or right after + // a text zone, insert the space inside the text zone - if (lFence && this.mathlist.parent() && this.mathlist.parent().type === 'leftright' && this.mathlist.parent().leftDelim === lFence) { - return true; - } - if (/(^|[^a-zA-Z])(a|I)[ ]$/.test(context)) { - // Single letters that are valid words in the current language - // Do nothing. @todo: localization - return false; - } + if (this.mode === 'math' && keystroke === 'Spacebar' && !shortcut) { + var nextSibling = this.mathlist.sibling(1); + var previousSibling = this.mathlist.sibling(-1); - if (/[\$\xA2-\xA5\u0E3F\u20A1\u20A4\u20A7-\u20A9\u20AC\u20B1\u20B9\u20BA]/.test(c)) { - // A currency symbol. - // Switch to math mode - return true; - } + if (nextSibling && nextSibling.mode === 'text' || previousSibling && previousSibling.mode === 'text') { + this.mathlist.insert(' ', { + mode: 'text' + }); + } + } // 5.4 If there's a selector, perform it. + + + if (selector && !this.$perform(selector) || shortcut) { + // // 6.5 insert the shortcut + if (shortcut) { + // If the shortcut is a mandatory escape sequence (\}, etc...) + // don't make it undoable, this would result in syntactically incorrect + // formulas + if (!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(shortcut)) { + // To enable the substitution to be undoable, + // insert the character before applying the substitution + var _style = _objectSpread({}, this.mathlist.anchorStyle(), {}, this.style); + + this.mathlist.insert(_editorKeyboard.default.eventToChar(evt), { + suppressChangeNotifications: true, + mode: this.mode, + style: _style + }); + var saveMode = this.mode; // Create a snapshot with the inserted character - if (/(^|[^a-zA-Z'’])[a-zA-Z][ ]$/.test(context)) { - // An isolated letter, followed by a space: - // Convert the letter to math, stay in text mode. - this.convertLastAtomsToMath_(1); - return false; - } + this.undoManager.snapshotAndCoalesce(this.config); // Revert to the state before the beginning of the shortcut + // (restore doesn't change the undo stack) - if (/[^0-9]\.[^0-9\s]$/.test(context)) { - // A period followed by something other than space or a digit - // and not preceded by a digit. - // We thought this was a text period, but turns out it's not - // Turn it into a \cdot - this.convertLastAtomsToMath_(1); - var atom = this.mathlist.sibling(0); - atom.body = '⋅'; // centered dot + this.undoManager.restore(this.keystrokeBufferStates[stateIndex], _objectSpread({}, this.config, { + suppressChangeNotifications: true + })); + this.mode = saveMode; + } - atom.autoFontFamily = 'cmr'; - atom.latex = '\\cdot'; - return true; - } + this.mathlist.contentWillChange(); + var save = this.mathlist.suppressChangeNotifications; + this.mathlist.suppressChangeNotifications = true; // Insert the substitute, possibly as a smart fence - if (/(^|\s)[a-zA-Z][^a-zA-Z]$/.test(context)) { - // Single letter (x), followed by a non-letter (>, =...) - this.convertLastAtomsToMath_(1); - return true; - } + var style = _objectSpread({}, this.mathlist.anchorStyle(), {}, this.style); - if (/\.[0-9]$/.test(context)) { - // If the new character is a digit, - // and it was preceded by a dot (which may have been converted - // to text) - // turn the dot back into 'math' - this.convertLastAtomsToMath_(1); - return true; - } + this.mathlist.insert(shortcut, { + format: 'latex', + mode: this.mode, + style: style, + smartFence: true + }); // Check if as a result of the substitution there is now an isolated + // (text mode) space (surrounded by math). In which case, remove it. - if (/[(][0-9+\-.]$/.test(context)) { - // An open paren followed by a number - // Turn the paren back to math and switch. - this.convertLastAtomsToMath_(1); - return true; - } + this.removeIsolatedSpace_(); // Switch (back) to text mode if the shortcut ended with a space - if (/[(][a-z][,;]$/.test(context)) { - // An open paren followed by a single letter, then a "," or ";" - // Turn the paren back and letter to math and switch. - this.convertLastAtomsToMath_(2); - return true; - } // The tests above can look behind and change what had previously - // been entered. Now, let's just look at the typed character. + if (shortcut.endsWith(' ')) { + this.mode = 'text'; + this.mathlist.insert(' ', { + mode: 'text', + style: style + }); + } + this.mathlist.suppressChangeNotifications = save; + this.mathlist.contentDidChange(); + this.undoManager.snapshot(this.config); - if (/[0-9+\-=><*|]$/.test(c)) { - // If this new character looks like a number, - // or a relational operator (=, <, >) - // or a "*" or "|" - // (note that <=, >=, etc... are handled separately as shortcuts) - // switch to 'math' - this.removeIsolatedSpace_(); - return true; - } - } else { - // We're in math mode. Should we switch to text? - if (keystroke === 'Spacebar') { - this.convertLastAtomsToText_(function (a) { - return /[a-z][:,;.]$/.test(a.body); - }); - return true; - } + this._requestUpdate(); - if (/[a-zA-Z]{3,}$/.test(context) && !/(dxd|abc|xyz|uvw)$/.test(context)) { - // A sequence of three characters - // (except for some exceptions) - // Convert them to text. - this.convertLastAtomsToText_(function (a) { - return /[a-zA-Z:,;.]/.test(a.body); - }); - return true; - } + this._announce('replacement'); // If we're done with the shortcuts (found a unique one), reset it. - if (/(^|\W)(if|If)$/i.test(context)) { - // @todo localization - this.convertLastAtomsToText_(1); - return true; - } - if (/\?|\./.test(c)) { - // If the last character is a period or question mark, - // turn it to 'text' - return true; - } - } + if (resetKeystrokeBuffer) { + this._resetKeystrokeBuffer(); + } + } + } // 6. Make sure the insertion point is scrolled into view - return false; -}; -/** - * @param {string} keystroke - * @param {Event} evt - optional, an Event corresponding to the keystroke - * @method MathField#_onKeystroke - * @private - */ + this.scrollIntoView(); // 7. Keystroke has been handled, if it wasn't caught in the default + // case, so prevent propagation -MathField.prototype._onKeystroke = function (keystroke, evt) { - var _this3 = this; + if (evt && evt.preventDefault) { + evt.preventDefault(); + evt.stopPropagation(); + } - // 1. Display the keystroke in the keystroke panel (if visible) - this._showKeystroke(keystroke); // 2. Reset the timer for the keystroke buffer reset + return false; + } + /** + * This handler is invoked when text has been typed, pasted in or input with + * an input method. As a result, `text` can be a sequence of characters to + * be inserted. + * @param {string} text + * @param {object} options + * @param {boolean} options.focus - If true, the mathfield will be focused + * @param {boolean} options.feedback - If true, provide audio and haptic feedback + * @param {boolean} options.simulateKeystroke - If true, generate some synthetic + * keystrokes (useful to trigger inline shortcuts, for example) + * @param {boolean} options.commandMode - If true, switch to command mode if + * necessary, then insert text + * @private + */ + }, { + key: "_onTypedText", + value: function _onTypedText(text, options) { + options = options || {}; // Focus, then provide audio and haptic feedback - clearTimeout(this.keystrokeBufferResetTimer); // 3. Give a chance to the custom keystroke handler to intercept the event + if (options.focus) { + this.$focus(); + } - if (this.config.onKeystroke && !this.config.onKeystroke(this, keystroke, evt)) { - if (evt && evt.preventDefault) { - evt.preventDefault(); - evt.stopPropagation(); - } + if (options.feedback) { + if (this.config.keypressVibration && navigator.vibrate) { + navigator.vibrate(HAPTIC_FEEDBACK_DURATION); + } - return false; - } // 4. Let's try to find a matching shortcut or command + if (this.keypressSound) { + this.keypressSound.load(); + this.keypressSound.play().catch(function (err) { + return console.warn(err); + }); + } + } + if (options.commandMode && this.mode !== 'command') { + this.switchMode_('command'); + } // Remove any error indicator on the current command sequence + // (if there is one) - var shortcut; - var stateIndex; - var selector; - var resetKeystrokeBuffer = false; // 4.1 Check if the keystroke, prefixed with the previously typed keystrokes, - // would match a long shortcut (i.e. '~~') - // Ignore the key if command or control is pressed (it may be a shortcut, - // see 4.3) - if (this.mode !== 'command' && (!evt || !evt.ctrlKey && !evt.metaKey)) { - var c = _editorKeyboard.default.eventToChar(evt); // The Backspace key will be handled as a delete command later (5.4) - // const c = Keyboard.eventToChar(evt); + this.mathlist.decorateCommandStringAroundInsertionPoint(false); + if (options.simulateKeystroke) { + // for (const c of text) { + var c = text.charAt(0); - if (c !== 'Backspace') { - if (!c || c.length > 1) { - // It was a non-alpha character (PageUp, End, etc...) - this._resetKeystrokeBuffer(); - } else { - // Find the longest substring that matches a shortcut - var candidate = this.keystrokeBuffer + c; - var i = 0; - - while (!shortcut && i < candidate.length) { - var siblings = void 0; - - if (this.keystrokeBufferStates[i]) { - var mathlist = new _editorEditableMathlist.default.EditableMathlist(); - mathlist.root = _mathAtom.default.makeRoot('math', _parser.default.parseTokens(_lexer.default.tokenize(this.keystrokeBufferStates[i].latex), this.config.default, null, this.config.macros)); - mathlist.setPath(this.keystrokeBufferStates[i].selection); - siblings = mathlist.siblings(); - } else { - siblings = this.mathlist.siblings(); - } + var ev = _editorKeyboard.default.charToEvent(c); - shortcut = _editorShortcuts.default.forString(this.mode, siblings, candidate.slice(i), this.config); - i += 1; - } + if (!this.$keystroke(_editorKeyboard.default.keyboardEventToString(ev), ev)) { + return; + } // } - stateIndex = i - 1; - this.keystrokeBuffer += c; - this.keystrokeBufferStates.push(this.undoManager.save()); + } // Insert the specified text at the current insertion point. + // If the selection is not collapsed, the content will be deleted first. - if (_editorShortcuts.default.startsWithString(candidate, this.config).length <= 1) { - resetKeystrokeBuffer = true; - } else { - if (this.config.inlineShortcutTimeout) { - // Set a timer to reset the shortcut buffer - this.keystrokeBufferResetTimer = setTimeout(function () { - _this3._resetKeystrokeBuffer(); - }, this.config.inlineShortcutTimeout); - } - } - } - } - } // 4.2. Should we switch mode? - // Need to check this before determing if there's a valid shortcut - // since if we switch to math mode, we may want to apply the shortcut - // e.g. "slope = rise/run" + var popoverText = ''; + var displayArrows = false; - if (this.config.smartMode) { - var previousMode = this.mode; + if (this.pasteInProgress) { + this.pasteInProgress = false; // This call was made in response to a paste event. + // Interpret `text` as a 'smart' expression (could be LaTeX, could be + // UnicodeMath) - if (shortcut) { - // If we found a shortcut (e.g. "alpha"), - // switch to math mode and insert it - this.mode = 'math'; - } else if (this.smartMode_(keystroke, evt)) { - this.mode = { - 'math': 'text', - 'text': 'math' - }[this.mode]; - selector = ''; - } // Notify of mode change + this.mathlist.insert(text, { + smartFence: this.config.smartFence, + mode: 'math' + }); + } else { + var style = _objectSpread({}, this.mathlist.anchorStyle(), {}, this.style); // Decompose the string into an array of graphemes. + // This is necessary to correctly process what is displayed as a single + // glyph (a grapheme) but which is composed of multiple Unicode + // codepoints. This is the case in particular for some emojis, such as + // those with a skin tone modifier, the country flags emojis or + // compound emojis such as the professional emojis, including the + // David Bowie emoji: 👨🏻‍🎤 - if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') { - this.config.onModeChange(this, this.mode); - } - } // 4.3 Check if this matches a keystroke shortcut - // Need to check this **after** checking for inline shortcuts because - // shift+backquote is a keystroke that inserts "\~"", but "~~" is a - // shortcut for "\approx" and needs to have priority over shift+backquote + var graphemes = _graphemeSplitter.default.splitGraphemes(text); + var _iteratorNormalCompletion3 = true; + var _didIteratorError3 = false; + var _iteratorError3 = undefined; - if (!shortcut && !selector) { - selector = _editorShortcuts.default.selectorForKeystroke(this.mode, keystroke); - } // No shortcut :( We're done. + try { + for (var _iterator3 = graphemes[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) { + var _c = _step3.value; + if (this.mode === 'command') { + this.mathlist.removeSuggestion(); + this.suggestionIndex = 0; + var command = this.mathlist.extractCommandStringAroundInsertionPoint(); - if (!shortcut && !selector) return true; // 5. Perform the action matching this shortcut - // 5.1 Remove any error indicator (wavy underline) on the current command - // sequence (if there are any) + var suggestions = _definitions.default.suggest(command + _c); - this.mathlist.decorateCommandStringAroundInsertionPoint(false); // 5.2 If we have a `moveAfterParent` selector (usually triggered with - // `spacebar), and we're at the end of a smart fence, close the fence with - // an empty (.) right delimiter + displayArrows = suggestions.length > 1; - var parent = this.mathlist.parent(); + if (suggestions.length === 0) { + this.mathlist.insert(_c, { + mode: 'command' + }); - if (selector === 'moveAfterParent' && parent && parent.type === 'leftright' && this.mathlist.endOffset() === this.mathlist.siblings().length - 1 && this.config.smartFence && this.mathlist._insertSmartFence('.')) { - // Pressing the space bar (moveAfterParent selector) when at the end - // of a potential smartfence will close it as a semi-open fence - selector = ''; + if (/^\\[a-zA-Z\\*]+$/.test(command + _c)) { + // This looks like a command name, but not a known one + this.mathlist.decorateCommandStringAroundInsertionPoint(true); + } - this._requestUpdate(); // Re-render the closed smartfence + _editorPopover.default.hidePopover(this); + } else { + this.mathlist.insert(_c, { + mode: 'command' + }); - } // 5.3 If this is the Spacebar and we're just before or right after - // a text zone, insert the space inside the text zone + if (suggestions[0].match !== command + _c) { + this.mathlist.insertSuggestion(suggestions[0].match, -suggestions[0].match.length + command.length + 1); + } + popoverText = suggestions[0].match; + } + } else if (this.mode === 'math') { + // Some characters are mapped to commands. Handle them here. + // This is important to handle synthetic text input and + // non-US keyboards, on which, fop example, the '^' key is + // not mapped to 'Shift-Digit6'. + var selector = { + '^': 'moveToSuperscript', + '_': 'moveToSubscript', + ' ': 'moveAfterParent' + }[_c]; + + if (selector) { + if (selector === 'moveToSuperscript') { + if (this._superscriptDepth() >= this.config.scriptDepth[1]) { + this._announce('plonk'); + + return; + } + } else if (selector === 'moveToSubscript') { + if (this._subscriptDepth() >= this.config.scriptDepth[0]) { + this._announce('plonk'); + + return; + } + } + + this.$perform(selector); + } else { + if (this.config.smartSuperscript && this.mathlist.relation() === 'superscript' && /[0-9]/.test(_c) && this.mathlist.siblings().filter(function (x) { + return x.type !== 'first'; + }).length === 0) { + // We are inserting a digit into an empty superscript + // If smartSuperscript is on, insert the digit, and + // exit the superscript. + this.mathlist.insert(_c, { + mode: 'math', + style: style + }); + this.mathlist.moveAfterParent_(); + } else { + this.mathlist.insert(_c, { + mode: 'math', + style: style, + smartFence: this.config.smartFence + }); + } + } + } else if (this.mode === 'text') { + this.mathlist.insert(_c, { + mode: 'text', + style: style + }); + } + } + } catch (err) { + _didIteratorError3 = true; + _iteratorError3 = err; + } finally { + try { + if (!_iteratorNormalCompletion3 && _iterator3.return != null) { + _iterator3.return(); + } + } finally { + if (_didIteratorError3) { + throw _iteratorError3; + } + } + } + } - if (this.mode === 'math' && keystroke === 'Spacebar' && !shortcut) { - var nextSibling = this.mathlist.sibling(1); - var previousSibling = this.mathlist.sibling(-1); + if (this.mode !== 'command') { + this.undoManager.snapshotAndCoalesce(this.config); + } // Render the mathlist - if (nextSibling && nextSibling.mode === 'text' || previousSibling && previousSibling.mode === 'text') { - this.mathlist.insert(' ', { - mode: 'text' - }); - } - } // 5.4 If there's a selector, perform it. + this._requestUpdate(); // Make sure the insertion point is visible - if (selector && !this.perform(selector) || shortcut) { - // // 6.5 insert the shortcut - if (shortcut) { - // If the shortcut is a mandatory escape sequence (\}, etc...) - // don't make it undoable, this would result in syntactically incorrect - // formulas - if (!/^(\\{|\\}|\\[|\\]|\\@|\\#|\\$|\\%|\\^|\\_|\\backslash)$/.test(shortcut)) { - // To enable the substitution to be undoable, - // insert the character before applying the substitution - var _style = _objectSpread({}, this.mathlist.anchorStyle(), this.style); - this.mathlist.insert(_editorKeyboard.default.eventToChar(evt), { - suppressChangeNotifications: true, - mode: this.mode, - style: _style - }); - var saveMode = this.mode; // Create a snapshot with the inserted character + this.scrollIntoView(); // Since the location of the popover depends on the position of the caret + // only show the popover after the formula has been rendered and the + // position of the caret calculated - this.undoManager.snapshotAndCoalesce(this.config); // Revert to the state before the beginning of the shortcut - // (restore doesn't change the undo stack) + _editorPopover.default.showPopoverWithLatex(this, popoverText, displayArrows); + } + /* + * Return a hash (32-bit integer) representing the content of the mathfield + * (but not the selection state) + */ - this.undoManager.restore(this.keystrokeBufferStates[stateIndex], _objectSpread({}, this.config, { - suppressChangeNotifications: true - })); - this.mode = saveMode; + }, { + key: "_hash", + value: function _hash() { + var result = 0; + var str = this.mathlist.root.toLatex(false); + + for (var i = 0; i < str.length; i++) { + result = result * 31 + str.charCodeAt(i); + result = result | 0; // Force it to a 32-bit number } - this.mathlist.contentWillChange(); - var save = this.mathlist.suppressChangeNotifications; - this.mathlist.suppressChangeNotifications = true; // Insert the substitute, possibly as a smart fence - - var style = _objectSpread({}, this.mathlist.anchorStyle(), this.style); - - this.mathlist.insert(shortcut, { - format: 'latex', - mode: this.mode, - style: style, - smartFence: true - }); // Check if as a result of the substitution there is now an isolated - // (text mode) space (surrounded by math). In which case, remove it. - - this.removeIsolatedSpace_(); // Switch (back) to text mode if the shortcut ended with a space - - if (shortcut.endsWith(' ')) { - this.mode = 'text'; - this.mathlist.insert(' ', { - mode: 'text', - style: style + return Math.abs(result); + } + }, { + key: "_requestUpdate", + value: function _requestUpdate() { + var _this4 = this; + + if (!this.dirty) { + this.dirty = true; + requestAnimationFrame(function (_) { + return _this4._render(); }); } + } + /** + * Lay-out the math field and generate the DOM. + * + * This is usually done automatically, but if the font-size, or other geometric + * attributes are modified, outside of MathLive, this function may need to be + * called explicitly. + * + * @method MathField#render + * @private + */ - this.mathlist.suppressChangeNotifications = save; - this.mathlist.contentDidChange(); - this.undoManager.snapshot(this.config); + }, { + key: "_render", + value: function _render(renderOptions) { + renderOptions = renderOptions || {}; + this.dirty = false; // + // 1. Stop and reset read aloud state + // + + if (!window.mathlive) { + window.mathlive = {}; + } // + // 2. Validate selection + // + + + if (!this.mathlist.anchor()) { + console.warn('Invalid selection, resetting it. ' + _editorMathpath.default.pathToString(this.mathlist.path)); + this.mathlist.path = [{ + relation: 'body', + offset: 0 + }]; + } // + // 3. Update selection state and blinking cursor (caret) + // + + + this.mathlist.forEach(function (a) { + a.caret = ''; + a.isSelected = false; + }); + var hasFocus = this.$hasFocus(); - this._requestUpdate(); + if (this.mathlist.isCollapsed()) { + this.mathlist.anchor().caret = hasFocus ? this.mode : ''; + } else { + this.mathlist.forEachSelected(function (a) { + a.isSelected = true; + }); + } // + // 4. Create spans corresponding to the updated mathlist + // + + + var spans = _mathAtom.default.decompose({ + mathstyle: 'displaystyle', + generateID: { + // Using the hash as a seed for the ID + // keeps the IDs the same until the content of the field changes. + seed: this._hash(), + // The `groupNumbers` flag indicates that extra spans should be generated + // to represent group of atoms, for example, a span to group + // consecutive digits to represent a number. + groupNumbers: renderOptions.forHighlighting + }, + macros: this.config.macros + }, this.mathlist.root); // + // 5. Construct struts around the spans + // + + + var base = _span.default.makeSpan(spans, 'ML__base'); + + base.attributes = { + // Sometimes Google Translate kicks in an attempts to 'translate' math + // This doesn't work very well, so turn off translate + 'translate': 'no', + // Hint to screen readers to not attempt to read this span + // They should use instead the 'aria-label' below. + 'aria-hidden': 'true' + }; - this._announce('replacement'); // If we're done with the shortcuts (found a unique one), reset it. + var topStrut = _span.default.makeSpan('', 'ML__strut'); + topStrut.setStyle('height', base.height, 'em'); + var struts = [topStrut]; - if (resetKeystrokeBuffer) { - this._resetKeystrokeBuffer(); - } - } - } // 6. Make sure the insertion point is scrolled into view + if (base.depth !== 0) { + var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom'); + bottomStrut.setStyle('height', base.height + base.depth, 'em'); + bottomStrut.setStyle('vertical-align', -base.depth, 'em'); + struts.push(bottomStrut); + } - this.scrollIntoView(); // 7. Keystroke has been handled, if it wasn't caught in the default - // case, so prevent propagation + struts.push(base); - if (evt && evt.preventDefault) { - evt.preventDefault(); - evt.stopPropagation(); - } + var wrapper = _span.default.makeSpan(struts, 'ML__mathlive'); // + // 6. Generate markup and accessible node + // - return false; -}; -/** - * This handler is invoked when text has been typed, pasted in or input with - * an input method. As a result, `text` can be a sequence of characters to - * be inserted. - * @param {string} text - * @param {object} options - * @param {boolean} options.focus - If true, the mathfield will be focused - * @param {boolean} options.feedback - If true, provide audio and haptic feedback - * @param {boolean} options.simulateKeystroke - If true, generate some synthetic - * keystrokes (useful to trigger inline shortcuts, for example) - * @param {boolean} options.commandMode - If true, switch to command mode if - * necessary, then insert text - */ + this.field.innerHTML = wrapper.toMarkup(0, this.config.horizontalSpacingScale); + this.field.classList.toggle('ML__focused', hasFocus); // Probably want to generate content on the fly depending on what to speak -MathField.prototype._onTypedText = function (text, options) { - options = options || {}; // Focus, then provide audio and haptic feedback + this.accessibleNode.innerHTML = "" + _mathAtom.default.toMathML(this.mathlist.root, this.config) + ""; //this.ariaLiveText.textContent = ""; + // + // 7. Calculate selection rectangle + // - if (options.focus) this.focus(); + var selectionRect = this._getSelectionBounds(); - if (options.feedback) { - if (this.config.keypressVibration && navigator.vibrate) { - navigator.vibrate(HAPTIC_FEEDBACK_DURATION); + if (selectionRect) { + var selectionElement = document.createElement('div'); + selectionElement.classList.add('ML__selection'); + selectionElement.style.position = 'absolute'; + selectionElement.style.left = selectionRect.left + 'px'; + selectionElement.style.top = selectionRect.top + 'px'; + selectionElement.style.width = Math.ceil(selectionRect.right - selectionRect.left) + 'px'; + selectionElement.style.height = Math.ceil(selectionRect.bottom - selectionRect.top - 1) + 'px'; + this.field.insertBefore(selectionElement, this.field.childNodes[0]); + } } - - if (this.keypressSound) { - this.keypressSound.load(); - this.keypressSound.play().catch(function (err) { - return console.warn(err); - }); + }, { + key: "_onPaste", + value: function _onPaste() { + // Make note we're in the process of pasting. The subsequent call to + // onTypedText() will take care of interpreting the clipboard content + this.pasteInProgress = true; + return true; } - } + }, { + key: "_onCut", + value: function _onCut() { + // Clearing the selection will have the side effect of clearing the + // content of the textarea. However, the textarea value is what will + // be copied to the clipboard, so defer the clearing of the selection + // to later, after the cut operation has been handled. + setTimeout(function () { + this.$clearSelection(); + + this._requestUpdate(); + }.bind(this), 0); + return true; + } + }, { + key: "_onCopy", + value: function _onCopy(e) { + if (this.mathlist.isCollapsed()) { + e.clipboardData.setData('text/plain', this.$text('latex-expanded')); + e.clipboardData.setData('application/json', this.$text('json')); + e.clipboardData.setData('application/xml', this.$text('mathML')); + } else { + e.clipboardData.setData('text/plain', this.$selectedText('latex-expanded')); + e.clipboardData.setData('application/json', this.$selectedText('json')); + e.clipboardData.setData('application/xml', this.$selectedText('mathML')); + } // Prevent the current document selection from being written to the clipboard. - if (options.commandMode && this.mode !== 'command') { - this.switchMode_('command'); - } // Remove any error indicator on the current command sequence - // (if there is one) + e.preventDefault(); + } + }, { + key: "formatMathlist", + value: function formatMathlist(root, format) { + format = format || 'latex'; + var result = ''; + + if (format === 'latex' || format === 'latex-expanded') { + result = root.toLatex(format === 'latex-expanded'); + } else if (format === 'mathML') { + result = root.toMathML(this.config); + } else if (format === 'spoken') { + result = _mathAtom.default.toSpeakableText(root, this.config); + } else if (format === 'spoken-text') { + var saveTextToSpeechMarkup = this.config.textToSpeechMarkup; + this.config.textToSpeechMarkup = ''; + result = _mathAtom.default.toSpeakableText(root, this.config); + this.config.textToSpeechMarkup = saveTextToSpeechMarkup; + } else if (format === 'spoken-ssml' || format === 'spoken-ssml-withHighlighting') { + var _saveTextToSpeechMarkup = this.config.textToSpeechMarkup; + var saveGenerateID = this.config.generateID; + this.config.textToSpeechMarkup = 'ssml'; + + if (format === 'spoken-ssml-withHighlighting') { + this.config.generateID = true; + } - this.mathlist.decorateCommandStringAroundInsertionPoint(false); + result = _mathAtom.default.toSpeakableText(root, this.config); + this.config.textToSpeechMarkup = _saveTextToSpeechMarkup; + this.config.generateID = saveGenerateID; + } else if (format === 'json') { + var json = _mathAtom.default.toAST(root, this.config); - if (options.simulateKeystroke) { - // for (const c of text) { - var c = text.charAt(0); + result = JSON.stringify(json); + } else if (format === 'ASCIIMath') { + result = (0, _outputASCIIMath.toASCIIMath)(root, this.config); + } else { + console.warn('Unknown format :', format); + } - var ev = _editorKeyboard.default.charToEvent(c); + return result; + } // + // PUBLIC API + // + + /** + * Return a textual representation of the mathfield. + * @param {string} [format='latex']. One of + * * `'latex'` + * * `'latex-expanded'` : all macros are recursively expanded to their definition + * * `'spoken'` + * * `'spoken-text'` + * * `'spoken-ssml'` + * * `spoken-ssml-withHighlighting` + * * `'mathML'` + * * `'json'` + * @return {string} + * @method MathField#$text + */ - if (!this.$keystroke(_editorKeyboard.default.keyboardEventToString(ev), ev)) return; // } - } // Insert the specified text at the current insertion point. - // If the selection is not collapsed, the content will be deleted first. + }, { + key: "$text", + value: function $text(format) { + return this.formatMathlist(this.mathlist.root, format); + } + /** + * Return a textual representation of the selection in the mathfield. + * @param {string} [format='latex']. One of + * * `'latex'` + * * `'latex-expanded'` : all macros are recursively expanded to their definition + * * `'spoken'` + * * `'spoken-text'` + * * `'spoken-ssml'` + * * `spoken-ssml-withHighlighting` + * * `'mathML'` + * * `'json'` + * @return {string} + * @method MathField#$selectedText + */ + }, { + key: "$selectedText", + value: function $selectedText(format) { + var atoms = this.mathlist.getSelectedAtoms(); - var popoverText = ''; - var displayArrows = false; + if (!atoms) { + return ''; + } - if (this.pasteInProgress) { - this.pasteInProgress = false; // This call was made in response to a paste event. - // Interpret `text` as a 'smart' expression (could be LaTeX, could be - // UnicodeMath) + var root = _mathAtom.default.makeRoot('math', atoms); - this.mathlist.insert(text, { - smartFence: this.config.smartFence, - mode: 'math' - }); - } else { - var style = _objectSpread({}, this.mathlist.anchorStyle(), this.style); // Decompose the string into an array of graphemes. - // This is necessary to correctly process what is displayed as a single - // glyph (a grapheme) but which is composed of multiple Unicode - // codepoints. This is the case in particular for some emojis, such as - // those with a skin tone modifier, the country flags emojis or - // compound emojis such as the professional emojis, including the - // David Bowie emoji: 👨🏻‍🎤 + return this.formatMathlist(root, format); + } + /** + * Return true if the length of the selection is 0, that is, if it is a single + * insertion point. + * @return {boolean} + * @method MathField#$selectionIsCollapsed + */ + }, { + key: "$selectionIsCollapsed", + value: function $selectionIsCollapsed() { + return this.mathlist.isCollapsed(); + } + /** + * Return the depth of the selection group. If the selection is at the root level, + * returns 0. If the selection is a portion of the numerator of a fraction + * which is at the root level, return 1. Note that in that case, the numerator + * would be the "selection group". + * @return {number} + * @method MathField#$selectionDepth + */ - var graphemes = _graphemeSplitter.default.splitGraphemes(text); + }, { + key: "$selectionDepth", + value: function $selectionDepth() { + return this.mathlist.path.length; + } + }, { + key: "_superscriptDepth", + value: function _superscriptDepth() { + var result = 0; + var i = 0; + var atom = this.mathlist.ancestor(i); + var wasSuperscript = false; + + while (atom) { + if (atom.superscript || atom.subscript) { + result += 1; + } - var _iteratorNormalCompletion3 = true; - var _didIteratorError3 = false; - var _iteratorError3 = undefined; + if (atom.superscript) { + wasSuperscript = true; + } else if (atom.subscript) { + wasSuperscript = false; + } - try { - for (var _iterator3 = graphemes[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) { - var _c = _step3.value; + i += 1; + atom = this.mathlist.ancestor(i); + } - if (this.mode === 'command') { - this.mathlist.removeSuggestion(); - this.suggestionIndex = 0; - var command = this.mathlist.extractCommandStringAroundInsertionPoint(); + return wasSuperscript ? result : 0; + } + }, { + key: "_subscriptDepth", + value: function _subscriptDepth() { + var result = 0; + var i = 0; + var atom = this.mathlist.ancestor(i); + var wasSubscript = false; + + while (atom) { + if (atom.superscript || atom.subscript) { + result += 1; + } - var suggestions = _definitions.default.suggest(command + _c); + if (atom.superscript) { + wasSubscript = false; + } else if (atom.subscript) { + wasSubscript = true; + } - displayArrows = suggestions.length > 1; + i += 1; + atom = this.mathlist.ancestor(i); + } - if (suggestions.length === 0) { - this.mathlist.insert(_c, { - mode: 'command' - }); - - if (/^\\[a-zA-Z\\*]+$/.test(command + _c)) { - // This looks like a command name, but not a known one - this.mathlist.decorateCommandStringAroundInsertionPoint(true); - } + return wasSubscript ? result : 0; + } + /** + * Return true if the selection starts at the beginning of the selection group. + * @return {boolean} + * @method MathField#$selectionAtStart + */ - _editorPopover.default.hidePopover(this); - } else { - this.mathlist.insert(_c, { - mode: 'command' - }); + }, { + key: "$selectionAtStart", + value: function $selectionAtStart() { + return this.mathlist.startOffset() === 0; + } + /** + * Return true if the selection extends to the end of the selection group. + * @return {boolean} + * @method MathField#$selectionAtEnd + */ - if (suggestions[0].match !== command + _c) { - this.mathlist.insertSuggestion(suggestions[0].match, -suggestions[0].match.length + command.length + 1); - } + }, { + key: "$selectionAtEnd", + value: function $selectionAtEnd() { + return this.mathlist.endOffset() >= this.mathlist.siblings().length - 1; + } + /* + * True if the entire group is selected + * */ - popoverText = suggestions[0].match; - } - } else if (this.mode === 'math') { - // Some characters are mapped to commands. Handle them here. - // This is important to handle synthetic text input and - // non-US keyboards, on which, fop example, the '^' key is - // not mapped to 'Shift-Digit6'. - var selector = { - '^': 'moveToSuperscript', - '_': 'moveToSubscript', - ' ': 'moveAfterParent' - }[_c]; - - if (selector) { - if (selector === 'moveToSuperscript') { - if (this._superscriptDepth() >= this.config.scriptDepth[1]) { - this._announce('plonk'); - - return; - } - } else if (selector === 'moveToSubscript') { - if (this._subscriptDepth() >= this.config.scriptDepth[0]) { - this._announce('plonk'); + }, { + key: "groupIsSelected", + value: function groupIsSelected() { + return this.mathlist.startOffset() === 0 && this.mathlist.endOffset() >= this.mathlist.siblings().length - 1; + } + /** + * If `text` is not empty, sets the content of the mathfield to the + * text interpreted as a LaTeX expression. + * If `text` is empty (or omitted), return the content of the mahtfield as a + * LaTeX expression. + * @param {string} text + * + * @param {Object.} options + * @param {boolean} options.suppressChangeNotifications - If true, the + * handlers for the contentWillChange and contentDidChange notifications will + * not be invoked. Default `false`. + * + * @return {string} + * @method MathField#$latex + */ - return; - } - } + }, { + key: "$latex", + value: function $latex(text, options) { + if (text) { + var oldValue = this.mathlist.root.toLatex(); + + if (text !== oldValue) { + options = options || {}; + this.mathlist.insert(text, Object.assign({}, this.config, { + insertionMode: 'replaceAll', + selectionMode: 'after', + format: 'latex', + mode: 'math', + suppressChangeNotifications: options.suppressChangeNotifications + })); + this.undoManager.snapshot(this.config); - this.perform(selector); - } else { - if (this.config.smartSuperscript && this.mathlist.relation() === 'superscript' && /[0-9]/.test(_c) && this.mathlist.siblings().filter(function (x) { - return x.type !== 'first'; - }).length === 0) { - // We are inserting a digit into an empty superscript - // If smartSuperscript is on, insert the digit, and - // exit the superscript. - this.mathlist.insert(_c, { - mode: 'math', - style: style - }); - this.mathlist.moveAfterParent_(); - } else { - this.mathlist.insert(_c, { - mode: 'math', - style: style, - smartFence: this.config.smartFence - }); - } - } - } else if (this.mode === 'text') { - this.mathlist.insert(_c, { - mode: 'text', - style: style - }); - } - } - } catch (err) { - _didIteratorError3 = true; - _iteratorError3 = err; - } finally { - try { - if (!_iteratorNormalCompletion3 && _iterator3.return != null) { - _iterator3.return(); - } - } finally { - if (_didIteratorError3) { - throw _iteratorError3; + this._requestUpdate(); } - } + + return text; + } // Return the content as LaTeX + + + return this.mathlist.root.toLatex(); } - } + /** + * Return the DOM element associated with this mathfield. + * + * Note that `this.$el().mathfield = this` + * @return {HTMLElement} + * @method MathField#$el + */ - if (this.mode !== 'command') { - this.undoManager.snapshotAndCoalesce(this.config); - } // Render the mathlist + }, { + key: "$el", + value: function $el() { + return this.element; + } + }, { + key: "undo", + value: function undo() { + this.complete_(); // Undo to the previous state + this.undoManager.undo(this.config); + return true; + } + }, { + key: "redo", + value: function redo() { + this.complete_(); + this.undoManager.redo(this.config); + return true; + } + }, { + key: "scrollIntoView", + value: function scrollIntoView() { + // If a render is pending, do it now to make sure we have correct layout + // and caret position + if (this.dirty) { + this._render(); + } - this._requestUpdate(); // Make sure the insertion point is visible + var pos = this._getCaretPosition(); + var fieldBounds = this.field.getBoundingClientRect(); - this.scrollIntoView(); // Since the location of the popover depends on the position of the caret - // only show the popover after the formula has been rendered and the - // position of the caret calculated + if (!pos) { + var selectionBounds = this._getSelectionBounds(); - _editorPopover.default.showPopoverWithLatex(this, popoverText, displayArrows); -}; -/** - * Return a hash (32-bit integer) representing the content of the mathfield - * (but not the selection state) - */ + if (selectionBounds) { + pos = { + x: selectionBounds.right + fieldBounds.left - this.field.scrollLeft, + y: selectionBounds.top + fieldBounds.top - this.field.scrollTop + }; + } + } + if (pos) { + var x = pos.x - window.scrollX; -MathField.prototype._hash = function () { - var result = 0; - var str = this.mathlist.root.toLatex(false); + if (x < fieldBounds.left) { + this.field.scroll({ + top: 0, + left: x - fieldBounds.left + this.field.scrollLeft - 20, + behavior: 'smooth' + }); + } else if (x > fieldBounds.right) { + this.field.scroll({ + top: 0, + left: x - fieldBounds.right + this.field.scrollLeft + 20, + behavior: 'smooth' + }); + } + } + } + }, { + key: "scrollToStart", + value: function scrollToStart() { + this.field.scroll(0, 0); + } + }, { + key: "scrollToEnd", + value: function scrollToEnd() { + var fieldBounds = this.field.getBoundingClientRect(); + this.field.scroll(fieldBounds.left - window.scrollX, 0); + } + /** + * + * @method MathField#enterCommandMode_ + * @private + */ - for (var i = 0; i < str.length; i++) { - result = result * 31 + str.charCodeAt(i); - result = result | 0; // Force it to a 32-bit number - } + }, { + key: "enterCommandMode_", + value: function enterCommandMode_() { + this.switchMode_('command'); + } + }, { + key: "copyToClipboard_", + value: function copyToClipboard_() { + this.$focus(); // If the selection is empty, select the entire field before + // copying it. - return Math.abs(result); -}; + if (this.mathlist.isCollapsed()) { + this.$select(); + } -MathField.prototype._requestUpdate = function () { - var _this4 = this; + document.execCommand('copy'); + return false; + } + }, { + key: "cutToClipboard_", + value: function cutToClipboard_() { + this.$focus(); + document.execCommand('cut'); + return true; + } + }, { + key: "pasteFromClipboard_", + value: function pasteFromClipboard_() { + this.$focus(); + document.execCommand('paste'); + return true; + } + /** + * This method can be invoked as a selector with {@linkcode MathField#$perform $perform("insert")} + * or called explicitly. + * + * It will insert the specified block of text at the current insertion point, + * according to the insertion mode specified. + * + * After the insertion, the selection will be set according to the `selectionMode`. + * @param {string} s - The text to be inserted + * + * @param {Object.} [options={}] + * + * @param {'placeholder' | 'after' | 'before' | 'item'} options.selectionMode - Describes where the selection + * will be after the insertion: + * * `'placeholder'`: the selection will be the first available placeholder + * in the item that has been inserted (default) + * * `'after'`: the selection will be an insertion point after the item that + * has been inserted, + * * `'before'`: the selection will be an insertion point before + * the item that has been inserted + * * `'item'`: the item that was inserted will be selected + * + * @param {'auto' | 'latex'} options.format - The format of the string `s`: + * * `'auto'`: the string is interpreted as a latex fragment or command) + * (default) + * * `'latex'`: the string is interpreted strictly as a latex fragment + * + * @param {boolean} options.focus - If true, the mathfield will be focused after + * the insertion + * + * @param {boolean} options.feedback - If true, provide audio and haptic feedback + * + * @param {'text' | 'math' | ''} options.mode - 'text' or 'math'. If empty, the current mode + * is used (default) + * + * @param {boolean} options.resetStyle - If true, the style after the insertion + * is the same as the style before (if false, the style after the + * insertion is the style of the last inserted atom). + * + * @method MathField#$insert + */ - if (!this.dirty) { - this.dirty = true; - requestAnimationFrame(function (_) { - return _this4._render(); - }); - } -}; -/** - * Lay-out the math field and generate the DOM. - * - * This is usually done automatically, but if the font-size, or other geometric - * attributes are modified, outside of MathLive, this function may need to be - * called explicitly. - * - * @method MathField#render - * @private - */ + }, { + key: "$insert", + value: function $insert(s, options) { + if (typeof s === 'string' && s.length > 0) { + options = options || {}; + if (options.focus) { + this.$focus(); + } -MathField.prototype._render = function (renderOptions) { - renderOptions = renderOptions || {}; - this.dirty = false; // - // 1. Stop and reset read aloud state - // + if (options.feedback) { + if (this.config.keypressVibration && navigator.vibrate) { + navigator.vibrate(HAPTIC_FEEDBACK_DURATION); + } - if (!window.mathlive) window.mathlive = {}; // - // 2. Validate selection - // + if (this.keypressSound) { + this.keypressSound.load(); + this.keypressSound.play(); + } + } - if (!this.mathlist.anchor()) { - console.warn('Invalid selection, resetting it. ' + _editorMathpath.default.pathToString(this.mathlist.path)); - this.mathlist.path = [{ - relation: 'body', - offset: 0 - }]; - } // - // 3. Update selection state and blinking cursor (caret) - // + if (s === '\\\\') { + // This string is interpreted as an "insert row after" command + this.mathlist.addRowAfter_(); + } else if (s === '&') { + this.mathlist.addColumnAfter_(); + } else { + var savedStyle = this.style; + this.mathlist.insert(s, _objectSpread({ + mode: this.mode, + style: this.mathlist.anchorStyle() + }, options)); + + if (options.resetStyle) { + this.style = savedStyle; + } + } + this.undoManager.snapshot(this.config); - this.mathlist.forEach(function (a) { - a.caret = ''; - a.isSelected = false; - }); - var hasFocus = this.hasFocus(); + this._requestUpdate(); - if (this.mathlist.isCollapsed()) { - this.mathlist.anchor().caret = hasFocus ? this.mode : ''; - } else { - this.mathlist.forEachSelected(function (a) { - a.isSelected = true; - }); - } // - // 4. Create spans corresponding to the updated mathlist - // - - - var spans = _mathAtom.default.decompose({ - mathstyle: 'displaystyle', - generateID: { - // Using the hash as a seed for the ID - // keeps the IDs the same until the content of the field changes. - seed: this._hash(), - // The `groupNumbers` flag indicates that extra spans should be generated - // to represent group of atoms, for example, a span to group - // consecutive digits to represent a number. - groupNumbers: renderOptions.forHighlighting - }, - macros: this.config.macros - }, this.mathlist.root); // - // 5. Construct struts around the spans - // - - - var base = _span.default.makeSpan(spans, 'ML__base'); - - base.attributes = { - // Sometimes Google Translate kicks in an attempts to 'translate' math - // This doesn't work very well, so turn off translate - 'translate': 'no', - // Hint to screen readers to not attempt to read this span - // They should use instead the 'aria-label' below. - 'aria-hidden': 'true' - }; + return true; + } - var topStrut = _span.default.makeSpan('', 'ML__strut'); + return false; + } + }, { + key: "switchMode_", + value: function switchMode_(mode, prefix, suffix) { + this._resetKeystrokeBuffer(); // Suppress (temporarily) smart mode if switching to/from text or math + // This prevents switching to/from command mode from supressing smart mode. - topStrut.setStyle('height', base.height, 'em'); - var struts = [topStrut]; - if (base.depth !== 0) { - var bottomStrut = _span.default.makeSpan('', 'ML__strut--bottom'); + this.smartModeSuppressed = /text|math/.test(this.mode) && /text|math/.test(mode); - bottomStrut.setStyle('height', base.height + base.depth, 'em'); - bottomStrut.setStyle('vertical-align', -base.depth, 'em'); - struts.push(bottomStrut); - } + if (prefix) { + this.$insert(prefix, { + format: 'latex', + mode: { + 'math': 'text', + 'text': 'math' + }[mode] + }); + } // Remove any error indicator on the current command sequence (if there is one) - struts.push(base); - var wrapper = _span.default.makeSpan(struts, 'ML__mathlive'); // - // 6. Generate markup and accessible node - // + this.mathlist.decorateCommandStringAroundInsertionPoint(false); + if (mode === 'command') { + this.mathlist.removeSuggestion(); - this.field.innerHTML = wrapper.toMarkup(0, this.config.horizontalSpacingScale); - this.field.classList.toggle('ML__focused', hasFocus); // Probably want to generate content on the fly depending on what to speak + _editorPopover.default.hidePopover(this); - this.accessibleNode.innerHTML = "" + _mathAtom.default.toMathML(this.mathlist.root, this.config) + ""; //this.ariaLiveText.textContent = ""; - // - // 7. Calculate selection rectangle - // + this.suggestionIndex = 0; // Switch to the command mode keyboard layer - var selectionRect = this._getSelectionBounds(); + if (this.virtualKeyboardVisible) { + this.switchKeyboardLayer_('lower-command'); + } - if (selectionRect) { - var selectionElement = document.createElement('div'); - selectionElement.classList.add('ML__selection'); - selectionElement.style.position = 'absolute'; - selectionElement.style.left = selectionRect.left + 'px'; - selectionElement.style.top = selectionRect.top + 'px'; - selectionElement.style.width = Math.ceil(selectionRect.right - selectionRect.left) + 'px'; - selectionElement.style.height = Math.ceil(selectionRect.bottom - selectionRect.top - 1) + 'px'; - this.field.insertBefore(selectionElement, this.field.childNodes[0]); - } -}; + this.mathlist.insert("\x1B", { + mode: 'math' + }); + } else { + this.mode = mode; + } -MathField.prototype._onPaste = function () { - // Make note we're in the process of pasting. The subsequent call to - // onTypedText() will take care of interpreting the clipboard content - this.pasteInProgress = true; - return true; -}; + if (suffix) { + this.$insert(suffix, { + format: 'latex', + mode: mode + }); + } // Notify of mode change -MathField.prototype._onCut = function () { - // Clearing the selection will have the side effect of clearing the - // content of the textarea. However, the textarea value is what will - // be copied to the clipboard, so defer the clearing of the selection - // to later, after the cut operation has been handled. - setTimeout(function () { - this.clearSelection(); - - this._requestUpdate(); - }.bind(this), 0); - return true; -}; -MathField.prototype._onCopy = function (e) { - if (this.mathlist.isCollapsed()) { - e.clipboardData.setData('text/plain', this.$text('latex-expanded')); - e.clipboardData.setData('application/json', this.$text('json')); - e.clipboardData.setData('application/xml', this.$text('mathML')); - } else { - e.clipboardData.setData('text/plain', this.$selectedText('latex-expanded')); - e.clipboardData.setData('application/json', this.$selectedText('json')); - e.clipboardData.setData('application/xml', this.$selectedText('mathML')); - } // Prevent the current document selection from being written to the clipboard. + if (typeof this.config.onModeChange === 'function') { + this.config.onModeChange(this, this.mode); + } + this._requestUpdate(); + } + /** + * When in command mode, insert the select command and return to math mode + * If escape is true, the command is discared. + * @param {object} options + * @param {boolean} options.discard if true, the command is discarded and the + * mode switched back to math + * @param {boolean} options.acceptSuggestion if true, accept the suggestion to + * complete the command. Otherwise, only use what has been entered so far. + * @method MathField#complete_ + * @private + */ - e.preventDefault(); -}; + }, { + key: "complete_", + value: function complete_(options) { + options = options || {}; -MathField.prototype.formatMathlist = function (root, format) { - format = format || 'latex'; - var result = ''; - - if (format === 'latex' || format === 'latex-expanded') { - result = root.toLatex(format === 'latex-expanded'); - } else if (format === 'mathML') { - result = root.toMathML(this.config); - } else if (format === 'spoken') { - result = _mathAtom.default.toSpeakableText(root, this.config); - } else if (format === 'spoken-text') { - var save = this.config.textToSpeechMarkup; - this.config.textToSpeechMarkup = ''; - result = _mathAtom.default.toSpeakableText(root, this.config); - this.config.textToSpeechMarkup = save; - } else if (format === 'spoken-ssml') { - var _save = this.config.textToSpeechMarkup; - this.config.textToSpeechMarkup = 'ssml'; - result = _mathAtom.default.toSpeakableText(root, this.config); - this.config.textToSpeechMarkup = _save; - } else if (format === 'json') { - var json = _mathAtom.default.toAST(root, this.config); - - result = JSON.stringify(json); - } else if (format === 'ASCIIMath') { - result = (0, _outputASCIIMath.toASCIIMath)(root, this.config); - } else { - console.warn('Unknown format :', format); - } + _editorPopover.default.hidePopover(this); - return result; -}; // -// PUBLIC API -// + if (options.discard) { + this.mathlist.spliceCommandStringAroundInsertionPoint(null); + this.switchMode_('math'); + return true; + } -/** - * Return a textual representation of the mathfield. - * @param {string} [format='latex']. One of - * * `'latex'` - * * `'latex-expanded'` : all macros are recursively expanded to their definition - * * `'spoken'` - * * `'spoken-text'` - * * `'spoken-ssml'` - * * `'mathML'` - * * `'json'` - * @return {string} - * @method MathField#$text - */ + var command = this.mathlist.extractCommandStringAroundInsertionPoint(!options.acceptSuggestion); + if (command) { + if (command === '\\(' || command === '\\)') { + this.mathlist.spliceCommandStringAroundInsertionPoint([]); + this.mathlist.insert(command.slice(1), { + mode: this.mode + }); + } else { + // We'll assume we want to insert in math mode + // (commands are only available in math mode) + var mode = 'math'; -MathField.prototype.text = MathField.prototype.$text = function (format) { - return this.formatMathlist(this.mathlist.root, format); -}; -/** - * Return a textual representation of the selection in the mathfield. - * @param {string} [format='latex']. One of - * * `'latex'` - * * `'latex-expanded'` : all macros are recursively expanded to their definition - * * `'spoken'` - * * `'spoken-text'` - * * `'spoken-ssml'` - * * `'mathML'` - * * `'json'` - * @return {string} - * @method MathField#$selectedText - */ + if (_definitions.default.commandAllowed(mode, command)) { + var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(command), mode, null, this.config.macros); + + this.mathlist.spliceCommandStringAroundInsertionPoint(mathlist); + } else { + // This wasn't a simple function or symbol. + // Interpret the input as LaTeX code + var _mathlist = _parser.default.parseTokens(_lexer.default.tokenize(command), mode, null, this.config.macros); + + if (_mathlist) { + this.mathlist.spliceCommandStringAroundInsertionPoint(_mathlist); + } else { + this.mathlist.decorateCommandStringAroundInsertionPoint(true); + } + } + } + this.undoManager.snapshot(this.config); -MathField.prototype.selectedText = MathField.prototype.$selectedText = function (format) { - var atoms = this.mathlist.getSelectedAtoms(); - if (!atoms) return ''; + this._announce('replacement'); - var root = _mathAtom.default.makeRoot('math', atoms); + return true; + } - return this.formatMathlist(root, format); -}; -/** - * Return true if the length of the selection is 0, that is, if it is a single - * insertion point. - * @return {boolean} - * @method MathField#$selectionIsCollapsed - */ + return false; + } + }, { + key: "_updateSuggestion", + value: function _updateSuggestion() { + this.mathlist.positionInsertionPointAfterCommitedCommand(); + this.mathlist.removeSuggestion(); + var command = this.mathlist.extractCommandStringAroundInsertionPoint(); + var suggestions = _definitions.default.suggest(command); -MathField.prototype.selectionIsCollapsed = MathField.prototype.$selectionIsCollapsed = function () { - return this.mathlist.isCollapsed(); -}; -/** - * Return the depth of the selection group. If the selection is at the root level, - * returns 0. If the selection is a portion of the numerator of a fraction - * which is at the root level, return 1. Note that in that case, the numerator - * would be the "selection group". - * @return {number} - * @method MathField#$selectionDepth - */ + if (suggestions.length === 0) { + _editorPopover.default.hidePopover(this); + this.mathlist.decorateCommandStringAroundInsertionPoint(true); + } else { + var index = this.suggestionIndex % suggestions.length; + var l = command.length - suggestions[index].match.length; -MathField.prototype.selectionDepth = MathField.prototype.$selectionDepth = function () { - return this.mathlist.path.length; -}; + if (l !== 0) { + this.mathlist.insertSuggestion(suggestions[index].match, l); + } -MathField.prototype._superscriptDepth = function () { - var result = 0; - var i = 0; - var atom = this.mathlist.ancestor(i); - var wasSuperscript = false; + _editorPopover.default.showPopoverWithLatex(this, suggestions[index].match, suggestions.length > 1); + } - while (atom) { - if (atom.superscript || atom.subscript) { - result += 1; + this._requestUpdate(); } + }, { + key: "nextSuggestion_", + value: function nextSuggestion_() { + this.suggestionIndex += 1; // The modulo of the suggestionIndex is used to determine which suggestion + // to display, so no need to worry about rolling over. - if (atom.superscript) { - wasSuperscript = true; - } else if (atom.subscript) { - wasSuperscript = false; + this._updateSuggestion(); + + return false; } + }, { + key: "previousSuggestion_", + value: function previousSuggestion_() { + this.suggestionIndex -= 1; - i += 1; - atom = this.mathlist.ancestor(i); - } + if (this.suggestionIndex < 0) { + // We're rolling over + // Get the list of suggestions, so we can know how many there are + // Not very efficient, but simple. + this.mathlist.removeSuggestion(); + var command = this.mathlist.extractCommandStringAroundInsertionPoint(); - return wasSuperscript ? result : 0; -}; + var suggestions = _definitions.default.suggest(command); -MathField.prototype._subscriptDepth = function () { - var result = 0; - var i = 0; - var atom = this.mathlist.ancestor(i); - var wasSubscript = false; + this.suggestionIndex = suggestions.length - 1; + } - while (atom) { - if (atom.superscript || atom.subscript) { - result += 1; - } + this._updateSuggestion(); - if (atom.superscript) { - wasSubscript = false; - } else if (atom.subscript) { - wasSubscript = true; + return false; } + /** + * Attach event handlers to an element so that it will react by executing + * a command when pressed. + * `'command'` can be: + * - a string, a single selector + * - an array, whose first element is a selector followed by one or more arguments. + * - an object, with the following keys: + * * 'default': command performed on up, with a down + up sequence with no + * delay between down and up + * * 'alt', 'shift', 'altshift' keys: command performed on up with + * one of these modifiers pressed + * * 'pressed': command performed on 'down' + * * 'pressAndHoldStart': command performed after a tap/down followed by a + * delay (optional) + * * 'pressAndHoldEnd': command performed on up, if there was a delay + * between down and up, if absent, 'default' is performed + * The value of the keys specify which selector (string + * or array) to perform depending on the keyboard state when the button is + * pressed. + * + * The 'pressed' and 'active' classes will get added to + * the element, as the :hover and :active pseudo-classes are not reliable + * (at least on Chrome Android). + * + * @param {HTMLElement} el + * @param {object|string} command + * @private + */ - i += 1; - atom = this.mathlist.ancestor(i); - } + }, { + key: "_attachButtonHandlers", + value: function _attachButtonHandlers(el, command) { + var that = this; + + if (_typeof(command) === 'object' && (command.default || command.pressed)) { + // Attach the default (no modifiers pressed) command to the element + if (command.default) { + el.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(command.default)); + } - return wasSubscript ? result : 0; -}; -/** - * Return true if the selection starts at the beginning of the selection group. - * @return {boolean} - * @method MathField#$selectionAtStart - */ + if (command.alt) { + el.setAttribute('data-' + this.config.namespace + 'command-alt', JSON.stringify(command.alt)); + } + if (command.altshift) { + el.setAttribute('data-' + this.config.namespace + 'command-altshift', JSON.stringify(command.altshift)); + } -MathField.prototype.selectionAtStart = MathField.prototype.$selectionAtStart = function () { - return this.mathlist.startOffset() === 0; -}; -/** - * Return true if the selection extends to the end of the selection group. - * @return {boolean} - * @method MathField#$selectionAtEnd - */ + if (command.shift) { + el.setAttribute('data-' + this.config.namespace + 'command-shift', JSON.stringify(command.shift)); + } // .pressed: command to perform when the button is pressed (i.e. + // on mouse down/touch). Otherwise the command is performed when + // the button is released -MathField.prototype.selectionAtEnd = MathField.prototype.$selectionAtEnd = function () { - return this.mathlist.endOffset() >= this.mathlist.siblings().length - 1; -}; -/** - * True if the entire group is selected - * */ + if (command.pressed) { + el.setAttribute('data-' + this.config.namespace + 'command-pressed', JSON.stringify(command.pressed)); + } + if (command.pressAndHoldStart) { + el.setAttribute('data-' + this.config.namespace + 'command-pressAndHoldStart', JSON.stringify(command.pressAndHoldStart)); + } -MathField.prototype.groupIsSelected = function () { - return this.mathlist.startOffset() === 0 && this.mathlist.endOffset() >= this.mathlist.siblings().length - 1; -}; -/** - * If `text` is not empty, sets the content of the mathfield to the - * text interpreted as a LaTeX expression. - * If `text` is empty (or omitted), return the content of the mahtfield as a - * LaTeX expression. - * @param {string} text - * - * @param {Object.} options - * @param {boolean} options.suppressChangeNotifications - If true, the - * handlers for the contentWillChange and contentDidChange notifications will - * not be invoked. Default `false`. - * - * @return {string} - * @method MathField#$latex - */ + if (command.pressAndHoldEnd) { + el.setAttribute('data-' + this.config.namespace + 'command-pressAndHoldEnd', JSON.stringify(command.pressAndHoldEnd)); + } + } else { + // We need to turn the command into a string to attach it to the dataset + // associated with the button (the command could be an array made of a + // selector and one or more parameters) + el.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(command)); + } + var pressHoldStart; + var pressHoldElement; + var touchID; + var syntheticTarget; // Target while touch move -MathField.prototype.latex = MathField.prototype.$latex = function (text, options) { - if (text) { - var oldValue = this.mathlist.root.toLatex(); + var pressAndHoldTimer; + on(el, 'mousedown touchstart:passive', function (ev) { + if (ev.type !== 'mousedown' || ev.buttons === 1) { + // The primary button was pressed or the screen was tapped. + ev.stopPropagation(); + ev.preventDefault(); + el.classList.add('pressed'); + pressHoldStart = Date.now(); // Record the ID of the primary touch point for tracking on touchmove - if (text !== oldValue) { - options = options || {}; - this.mathlist.insert(text, Object.assign({}, this.config, { - insertionMode: 'replaceAll', - selectionMode: 'after', - format: 'latex', - mode: 'math', - suppressChangeNotifications: options.suppressChangeNotifications - })); - this.undoManager.snapshot(this.config); + if (ev.type === 'touchstart') { + touchID = ev.changedTouches[0].identifier; + } // Parse the JSON to get the command (and its optional arguments) + // and perform it immediately - this._requestUpdate(); - } - return text; - } // Return the content as LaTeX + var _command2 = el.getAttribute('data-' + that.config.namespace + 'command-pressed'); + if (_command2) { + that.$perform(JSON.parse(_command2)); + } // If there is a `press and hold start` command, perform it + // after a delay, if we're still pressed by then. - return this.mathlist.root.toLatex(); -}; -/** - * Return the DOM element associated with this mathfield. - * - * Note that `this.$el().mathfield = this` - * @return {Element} - * @method MathField#$el - */ + var pressAndHoldStartCommand = el.getAttribute('data-' + that.config.namespace + 'command-pressAndHoldStart'); -MathField.prototype.el = MathField.prototype.$el = function () { - return this.element; -}; + if (pressAndHoldStartCommand) { + pressHoldElement = el; -MathField.prototype.undo_ = MathField.prototype.undo = function () { - this.complete_(); // Undo to the previous state + if (pressAndHoldTimer) { + clearTimeout(pressAndHoldTimer); + } - this.undoManager.undo(this.config); - return true; -}; + pressAndHoldTimer = window.setTimeout(function () { + if (el.classList.contains('pressed')) { + that.$perform(JSON.parse(pressAndHoldStartCommand)); + } + }, 300); + } + } + }); + on(el, 'mouseleave touchcancel', function () { + el.classList.remove('pressed'); // let command = el.getAttribute('data-' + that.config.namespace + + // 'command-pressAndHoldEnd'); + // const now = Date.now(); + // if (command && now > pressHoldStart + 300) { + // that.$perform(JSON.parse(command)); + // } + }); + on(el, 'touchmove:passive', function (ev) { + // Unlike with mouse tracking, touch tracking only sends events + // to the target that was originally tapped on. For consistency, + // we want to mimic the behavior of the mouse interaction by + // tracking the touch events and dispatching them to potential targets + ev.preventDefault(); + + for (var i = 0; i < ev.changedTouches.length; i++) { + if (ev.changedTouches[i].identifier === touchID) { + // Found a touch matching our primary/tracked touch + var target = document.elementFromPoint(ev.changedTouches[i].clientX, ev.changedTouches[i].clientY); + + if (target !== syntheticTarget && syntheticTarget) { + syntheticTarget.dispatchEvent(new MouseEvent('mouseleave'), { + bubbles: true + }); + syntheticTarget = null; + } -MathField.prototype.redo_ = MathField.prototype.redo = function () { - this.complete_(); - this.undoManager.redo(this.config); - return true; -}; + if (target) { + syntheticTarget = target; + target.dispatchEvent(new MouseEvent('mouseenter', { + bubbles: true, + buttons: 1 + })); + } + } + } + }); + on(el, 'mouseenter', function (ev) { + if (ev.buttons === 1) { + el.classList.add('pressed'); + } + }); + on(el, 'mouseup touchend click', function (ev) { + if (syntheticTarget) { + ev.stopPropagation(); + ev.preventDefault(); + var target = syntheticTarget; + syntheticTarget = null; + target.dispatchEvent(new MouseEvent('mouseup', { + bubbles: true + })); + return; + } -MathField.prototype.scrollIntoView_ = MathField.prototype.scrollIntoView = function () { - // If a render is pending, do it now to make sure we have correct layout - // and caret position - if (this.dirty) { - this._render(); - } + el.classList.remove('pressed'); + el.classList.add('active'); + + if (ev.type === 'click' && ev.detail !== 0) { + // This is a click event triggered by a mouse interaction + // (and not a keyboard interaction) + // Ignore it, we'll handle the mouseup (or touchend) instead. + ev.stopPropagation(); + ev.preventDefault(); + return; + } // Since we want the active state to be visible for a while, + // use a timer to remove it after a short delay + + + window.setTimeout(function () { + el.classList.remove('active'); + }, 150); + var command = el.getAttribute('data-' + that.config.namespace + 'command-pressAndHoldEnd'); + var now = Date.now(); // If the button has not been pressed for very long or if we were + // not the button that started the press and hold, don't consider + // it a press-and-hold. + + if (el !== pressHoldElement || now < pressHoldStart + 300) { + command = undefined; + } - var pos = this._getCaretPosition(); + if (!command && ev.altKey && ev.shiftKey) { + command = el.getAttribute('data-' + that.config.namespace + 'command-altshift'); + } - var fieldBounds = this.field.getBoundingClientRect(); + if (!command && ev.altKey) { + command = el.getAttribute('data-' + that.config.namespace + 'command-alt'); + } - if (!pos) { - var selectionBounds = this._getSelectionBounds(); + if (!command && ev.shiftKey) { + command = el.getAttribute('data-' + that.config.namespace + 'command-shift'); + } - if (selectionBounds) { - pos = { - x: selectionBounds.right + fieldBounds.left - this.field.scrollLeft, - y: selectionBounds.top + fieldBounds.top - this.field.scrollTop - }; - } - } + if (!command) { + command = el.getAttribute('data-' + that.config.namespace + 'command'); + } - if (pos) { - var x = pos.x - window.scrollX; + if (command) { + // Parse the JSON to get the command (and its optional arguments) + // and perform it + that.$perform(JSON.parse(command)); + } - if (x < fieldBounds.left) { - this.field.scroll({ - top: 0, - left: x - fieldBounds.left + this.field.scrollLeft - 20, - behavior: 'smooth' - }); - } else if (x > fieldBounds.right) { - this.field.scroll({ - top: 0, - left: x - fieldBounds.right + this.field.scrollLeft + 20, - behavior: 'smooth' + ev.stopPropagation(); + ev.preventDefault(); }); } - } -}; + }, { + key: "_makeButton", + value: function _makeButton(label, cls, ariaLabel, command) { + var button = document.createElement('span'); + button.innerHTML = label; -MathField.prototype.scrollToStart_ = MathField.prototype.scrollToStart = function () { - this.field.scroll(0, 0); -}; + if (cls) { + button.classList.add([].slice.call(cls.split(' '))); + } -MathField.prototype.scrollToEnd_ = MathField.prototype.scrollToEnd = function () { - var fieldBounds = this.field.getBoundingClientRect(); - this.field.scroll(fieldBounds.left - window.scrollX, 0); -}; -/** - * - * @method MathField#enterCommandMode_ - * @private - */ + if (ariaLabel) { + button.setAttribute('aria-label', ariaLabel); + } + this._attachButtonHandlers(button, command); -MathField.prototype.enterCommandMode_ = function () { - this.switchMode_('command'); -}; + return button; + } + /* + * Alternate options are displayed when a key on the virtual keyboard is pressed + * and held. + * + */ -MathField.prototype.copyToClipboard_ = function () { - this.focus(); // If the selection is empty, select the entire field before - // copying it. + }, { + key: "showAlternateKeys_", + value: function showAlternateKeys_(keycap, altKeys) { + var altContainer = getSharedElement('mathlive-alternate-keys-panel', 'ML__keyboard alternate-keys'); - if (this.mathlist.isCollapsed()) { - this.select(); - } + if (this.virtualKeyboard.classList.contains('material')) { + altContainer.classList.add('material'); + } - document.execCommand('copy'); - return false; -}; + if (altKeys.length >= 7) { + // Width 4 + altContainer.style.width = '286px'; + } else if (altKeys.length === 4 || altKeys.length === 2) { + // Width 2 + altContainer.style.width = '146px'; + } else if (altKeys.length === 1) { + // Width 1 + altContainer.style.width = '86px'; + } else { + // Width 3 + altContainer.style.width = '146px'; + } // Reset container height -MathField.prototype.cutToClipboard_ = function () { - this.focus(); - document.execCommand('cut'); - return true; -}; -MathField.prototype.pasteFromClipboard_ = function () { - this.focus(); - document.execCommand('paste'); - return true; -}; -/** - * This method can be invoked as a selector with {@linkcode MathField#$perform $perform("insert")} - * or called explicitly. - * - * It will insert the specified block of text at the current insertion point, - * according to the insertion mode specified. - * - * After the insertion, the selection will be set according to the `selectionMode`. - * @param {string} s - The text to be inserted - * - * @param {Object.} [options={}] - * - * @param {string} options.selectionMode - Describes where the selection - * will be after the insertion: - * * `'placeholder'`: the selection will be the first available placeholder - * in the item that has been inserted (default) - * * `'after'`: the selection will be an insertion point after the item that - * has been inserted, - * * `'before'`: the selection will be an insertion point before - * the item that has been inserted - * * `'item'`: the item that was inserted will be selected - * - * @param {string} options.mode - The mode (`'text'` or `'math'`) to use. Default - * is the current mode. - * - * @param {string} options.format - The format of the string `s`: - * * `'auto'`: the string is interpreted as a latex fragment or command) - * (default) - * * `'latex'`: the string is interpreted strictly as a latex fragment - * - * @param {boolean} options.focus - If true, the mathfield will be focused after - * the insertion - * - * @param {boolean} options.feedback - If true, provide audio and haptic feedback - * - * @param {string} options.mode - 'text' or 'math'. If empty, the current mode - * is used (default) - * - * @param {boolean} options.resetStyle - If true, the style after the insertion - * is the same as the style before (if false, the style after the - * insertion is the style of the last inserted atom). - * - * @method MathField#$insert - */ + altContainer.style.height = 'auto'; + var markup = ''; + var _iteratorNormalCompletion4 = true; + var _didIteratorError4 = false; + var _iteratorError4 = undefined; + try { + for (var _iterator4 = altKeys[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) { + var altKey = _step4.value; + markup += ' 0) { - options = options || {}; - if (options.focus) this.focus(); + if (typeof altKey === 'string') { + markup += ' data-latex="' + altKey.replace(/"/g, '"') + '"'; + } else { + if (altKey.latex) { + markup += ' data-latex="' + altKey.latex.replace(/"/g, '"') + '"'; + } - if (options.feedback) { - if (this.config.keypressVibration && navigator.vibrate) { - navigator.vibrate(HAPTIC_FEEDBACK_DURATION); - } + if (altKey.content) { + markup += ' data-content="' + altKey.content.replace(/"/g, '"') + '"'; + } - if (this.keypressSound) { - this.keypressSound.load(); - this.keypressSound.play(); - } - } + if (altKey.insert) { + markup += ' data-insert="' + altKey.insert.replace(/"/g, '"') + '"'; + } - if (s === '\\\\') { - // This string is interpreted as an "insert row after" command - this.mathlist.addRowAfter_(); - } else if (s === '&') { - this.mathlist.addColumnAfter_(); - } else { - var savedStyle = this.style; - this.mathlist.insert(s, _objectSpread({ - mode: this.mode, - style: this.mathlist.anchorStyle() - }, options)); + if (altKey.command) { + markup += " data-command='" + altKey.command.replace(/"/g, '"') + "'"; + } - if (options.resetStyle) { - this.style = savedStyle; - } - } + if (altKey.aside) { + markup += ' data-aside="' + altKey.aside.replace(/"/g, '"') + '"'; + } - this.undoManager.snapshot(this.config); + if (altKey.classes) { + markup += ' data-classes="' + altKey.classes + '"'; + } + } - this._requestUpdate(); + markup += '>'; + markup += altKey.label || ''; + markup += ''; + } + } catch (err) { + _didIteratorError4 = true; + _iteratorError4 = err; + } finally { + try { + if (!_iteratorNormalCompletion4 && _iterator4.return != null) { + _iterator4.return(); + } + } finally { + if (_didIteratorError4) { + throw _iteratorError4; + } + } + } - return true; - } + markup = '
    ' + markup + '
'; + altContainer.innerHTML = markup; - return false; -}; + _editorVirtualKeyboard.default.makeKeycap(this, altContainer.getElementsByTagName('li'), 'performAlternateKeys'); -MathField.prototype.switchMode_ = function (mode, prefix, suffix) { - this._resetKeystrokeBuffer(); // Suppress (temporarily) smart mode if switching to/from text or math - // This prevents switching to/from command mode from supressing smart mode. + var keycapEl = this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="' + keycap + '"]'); + var position = keycapEl.getBoundingClientRect(); + if (position) { + if (position.top - altContainer.clientHeight < 0) { + // altContainer.style.maxWidth = '320px'; // Up to six columns + altContainer.style.width = 'auto'; - this.smartModeSuppressed = /text|math/.test(this.mode) && /text|math/.test(mode); + if (altKeys.length <= 6) { + altContainer.style.height = '56px'; // 1 row + } else if (altKeys.length <= 12) { + altContainer.style.height = '108px'; // 2 rows + } else { + altContainer.style.height = '205px'; // 3 rows + } + } - if (prefix) { - this.insert(prefix, { - format: 'latex', - mode: { - 'math': 'text', - 'text': 'math' - }[mode] - }); - } // Remove any error indicator on the current command sequence (if there is one) + var top = (position.top - altContainer.clientHeight + 5).toString() + 'px'; + var left = Math.max(0, Math.min(window.innerWidth - altContainer.offsetWidth, (position.left + position.right - altContainer.offsetWidth) / 2)) + 'px'; + altContainer.style.transform = 'translate(' + left + ',' + top + ')'; + altContainer.classList.add('is-visible'); + } + return false; + } + }, { + key: "hideAlternateKeys_", + value: function hideAlternateKeys_() { + var altContainer = document.getElementById('mathlive-alternate-keys-panel'); + + if (altContainer) { + altContainer.classList.remove('is-visible'); + altContainer.innerHTML = ''; + delete releaseSharedElement(altContainer); + } - this.mathlist.decorateCommandStringAroundInsertionPoint(false); + return false; + } + /* + * The command invoked when an alternate key is pressed. + * We need to hide the Alternate Keys panel, then perform the + * command. + */ - if (mode === 'command') { - this.mathlist.removeSuggestion(); + }, { + key: "performAlternateKeys_", + value: function performAlternateKeys_(command) { + this.hideAlternateKeys_(); + return this.$perform(command); + } + }, { + key: "switchKeyboardLayer_", + value: function switchKeyboardLayer_(layer) { + if (this.config.virtualKeyboardMode !== 'off') { + if (layer !== 'lower-command' && layer !== 'upper-command' && layer !== 'symbols-command') { + // If we switch to a non-command keyboard layer, first exit command mode. + this.complete_(); + } - _editorPopover.default.hidePopover(this); + this.showVirtualKeyboard_(); // If the alternate keys panel was visible, hide it - this.suggestionIndex = 0; // Switch to the command mode keyboard layer + this.hideAlternateKeys_(); // If we were in a temporarily shifted state (shift-key held down) + // restore our state before switching to a new layer. - if (this.virtualKeyboardVisible) { - this.switchKeyboardLayer_('lower-command'); - } + this.unshiftKeyboardLayer_(); + var layers = this.virtualKeyboard.getElementsByClassName('keyboard-layer'); // Search for the requested layer - this.mathlist.insert("\x1B", { - mode: 'math' - }); - } else { - this.mode = mode; - } + var found = false; - if (suffix) { - this.insert(suffix, { - format: 'latex', - mode: mode - }); - } // Notify of mode change + for (var i = 0; i < layers.length; i++) { + if (layers[i].id === layer) { + found = true; + break; + } + } // We did find the layer, switch to it. + // If we didn't find it, do nothing and keep the current layer - if (typeof this.config.onModeChange === 'function') { - this.config.onModeChange(this, this.mode); - } + if (found) { + for (var _i = 0; _i < layers.length; _i++) { + if (layers[_i].id === layer) { + layers[_i].classList.add('is-visible'); + } else { + layers[_i].classList.remove('is-visible'); + } + } + } - this._requestUpdate(); -}; -/** - * When in command mode, insert the select command and return to math mode - * If escape is true, the command is discared. - * @param {object} options - * @param {boolean} options.discard if true, the command is discarded and the - * mode switched back to math - * @param {boolean} options.acceptSuggestion if true, accept the suggestion to - * complete the command. Otherwise, only use what has been entered so far. - * @method MathField#complete_ - * @private - */ + this.$focus(); + } + return true; + } + /* + * Temporarily change the labels and the command of the keys + * (for example when a modifier key is held down.) + */ -MathField.prototype.complete_ = function (options) { - options = options || {}; + }, { + key: "shiftKeyboardLayer_", + value: function shiftKeyboardLayer_() { + var keycaps = this.virtualKeyboard.querySelectorAll('div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action'); - _editorPopover.default.hidePopover(this); + if (keycaps) { + for (var i = 0; i < keycaps.length; i++) { + var keycap = keycaps[i]; + var shiftedContent = keycap.getAttribute('data-shifted'); - if (options.discard) { - this.mathlist.spliceCommandStringAroundInsertionPoint(null); - this.switchMode_('math'); - return true; - } + if (shiftedContent || /^[a-z]$/.test(keycap.innerHTML)) { + keycap.setAttribute('data-unshifted-content', keycap.innerHTML); - var command = this.mathlist.extractCommandStringAroundInsertionPoint(!options.acceptSuggestion); + if (!shiftedContent) { + shiftedContent = keycap.innerHTML.toUpperCase(); + } - if (command) { - if (command === '\\(' || command === '\\)') { - this.mathlist.spliceCommandStringAroundInsertionPoint([]); - this.mathlist.insert(command.slice(1), { - mode: this.mode - }); - } else { - // We'll assume we want to insert in math mode - // (commands are only available in math mode) - var mode = 'math'; + keycap.innerHTML = shiftedContent; + var command = keycap.getAttribute('data-' + this.config.namespace + 'command'); - if (_definitions.default.commandAllowed(mode, command)) { - var mathlist = _parser.default.parseTokens(_lexer.default.tokenize(command), mode, null, this.config.macros); + if (command) { + keycap.setAttribute('data-unshifted-command', command); + var shiftedCommand = keycap.getAttribute('data-shifted-command'); - this.mathlist.spliceCommandStringAroundInsertionPoint(mathlist); - } else { - // This wasn't a simple function or symbol. - // Interpret the input as LaTeX code - var _mathlist = _parser.default.parseTokens(_lexer.default.tokenize(command), mode, null, this.config.macros); + if (shiftedCommand) { + keycap.setAttribute('data-' + this.config.namespace + 'command', shiftedCommand); + } else { + var commandObj = JSON.parse(command); - if (_mathlist) { - this.mathlist.spliceCommandStringAroundInsertionPoint(_mathlist); - } else { - this.mathlist.decorateCommandStringAroundInsertionPoint(true); + if (Array.isArray(commandObj)) { + commandObj[1] = commandObj[1].toUpperCase(); + } + + keycap.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(commandObj)); + } + } + } } } - } - - this.undoManager.snapshot(this.config); - this._announce('replacement'); - - return true; - } + return false; + } + /* + * Restore the key labels and commands to the state before a modifier key + * was pressed. + * + */ - return false; -}; + }, { + key: "unshiftKeyboardLayer_", + value: function unshiftKeyboardLayer_() { + var keycaps = this.virtualKeyboard.querySelectorAll('div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action'); -MathField.prototype._updateSuggestion = function () { - this.mathlist.positionInsertionPointAfterCommitedCommand(); - this.mathlist.removeSuggestion(); - var command = this.mathlist.extractCommandStringAroundInsertionPoint(); + if (keycaps) { + for (var i = 0; i < keycaps.length; i++) { + var keycap = keycaps[i]; + var content = keycap.getAttribute('data-unshifted-content'); - var suggestions = _definitions.default.suggest(command); + if (content) { + keycap.innerHTML = content; + } - if (suggestions.length === 0) { - _editorPopover.default.hidePopover(this); + var command = keycap.getAttribute('data-unshifted-command'); - this.mathlist.decorateCommandStringAroundInsertionPoint(true); - } else { - var index = this.suggestionIndex % suggestions.length; - var l = command.length - suggestions[index].match.length; + if (command) { + keycap.setAttribute('data-' + this.config.namespace + 'command', command); + } + } + } - if (l !== 0) { - this.mathlist.insertSuggestion(suggestions[index].match, l); + return false; } + }, { + key: "insertAndUnshiftKeyboardLayer_", + value: function insertAndUnshiftKeyboardLayer_(c) { + this.$insert(c); + this.unshiftKeyboardLayer_(); + return true; + } + /* Toggle the virtual keyboard, but switch to the alternate theme if available */ - _editorPopover.default.showPopoverWithLatex(this, suggestions[index].match, suggestions.length > 1); - } + }, { + key: "toggleVirtualKeyboardAlt_", + value: function toggleVirtualKeyboardAlt_() { + var hadAltTheme = false; + + if (this.virtualKeyboard) { + hadAltTheme = this.virtualKeyboard.classList.contains('material'); + this.virtualKeyboard.remove(); + delete this.virtualKeyboard; + this.virtualKeyboard = null; + } - this._requestUpdate(); -}; + this.showVirtualKeyboard_(hadAltTheme ? '' : 'material'); + return false; + } + /* Toggle the virtual keyboard, but switch another keyboard layout */ -MathField.prototype.nextSuggestion_ = function () { - this.suggestionIndex += 1; // The modulo of the suggestionIndex is used to determine which suggestion - // to display, so no need to worry about rolling over. + }, { + key: "toggleVirtualKeyboardShift_", + value: function toggleVirtualKeyboardShift_() { + this.config.virtualKeyboardLayout = { + 'qwerty': 'azerty', + 'azerty': 'qwertz', + 'qwertz': 'dvorak', + 'dvorak': 'colemak', + 'colemak': 'qwerty' + }[this.config.virtualKeyboardLayout]; + var layer = this.virtualKeyboard ? this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible') : null; + layer = layer ? layer.id : ''; + + if (this.virtualKeyboard) { + this.virtualKeyboard.remove(); + delete this.virtualKeyboard; + this.virtualKeyboard = null; + } - this._updateSuggestion(); + this.showVirtualKeyboard_(); - return false; -}; + if (layer) { + this.switchKeyboardLayer_(layer); + } -MathField.prototype.previousSuggestion_ = function () { - this.suggestionIndex -= 1; + return false; + } + }, { + key: "showVirtualKeyboard_", + value: function showVirtualKeyboard_(theme) { + this.virtualKeyboardVisible = false; + this.toggleVirtualKeyboard_(theme); + return false; + } + }, { + key: "hideVirtualKeyboard_", + value: function hideVirtualKeyboard_() { + this.virtualKeyboardVisible = true; + this.toggleVirtualKeyboard_(); + return false; + } + }, { + key: "toggleVirtualKeyboard_", + value: function toggleVirtualKeyboard_(theme) { + this.virtualKeyboardVisible = !this.virtualKeyboardVisible; - if (this.suggestionIndex < 0) { - // We're rolling over - // Get the list of suggestions, so we can know how many there are - // Not very efficient, but simple. - this.mathlist.removeSuggestion(); - var command = this.mathlist.extractCommandStringAroundInsertionPoint(); + if (this.virtualKeyboardVisible) { + if (this.virtualKeyboard) { + this.virtualKeyboard.classList.add('is-visible'); + } else { + // Construct the virtual keyboard + this.virtualKeyboard = _editorVirtualKeyboard.default.make(this, theme); // Let's make sure that tapping on the keyboard focuses the field - var suggestions = _definitions.default.suggest(command); + on(this.virtualKeyboard, 'touchstart:passive mousedown', function () { + that.$focus(); + }); + document.body.appendChild(this.virtualKeyboard); + } // For the transition effect to work, the property has to be changed + // after the insertion in the DOM. Use setTimeout - this.suggestionIndex = suggestions.length - 1; - } - this._updateSuggestion(); + var that = this; + window.setTimeout(function () { + that.virtualKeyboard.classList.add('is-visible'); + }, 1); + } else if (this.virtualKeyboard) { + this.virtualKeyboard.classList.remove('is-visible'); + } - return false; -}; -/** - * Attach event handlers to an element so that it will react by executing - * a command when pressed. - * `'command'` can be: - * - a string, a single selector - * - an array, whose first element is a selector followed by one or more arguments. - * - an object, with the following keys: - * * 'default': command performed on up, with a down + up sequence with no - * delay between down and up - * * 'alt', 'shift', 'altshift' keys: command performed on up with - * one of these modifiers pressed - * * 'pressed': command performed on 'down' - * * 'pressAndHoldStart': command performed after a tap/down followed by a - * delay (optional) - * * 'pressAndHoldEnd': command performed on up, if there was a delay - * between down and up, if absent, 'default' is performed - * The value of the keys specify which selector (string - * or array) to perform depending on the keyboard state when the button is - * pressed. - * - * The 'pressed' and 'active' classes will get added to - * the element, as the :hover and :active pseudo-classes are not reliable - * (at least on Chrome Android). - * - * @param {Element} el - * @param {object|string} command - */ + if (typeof this.config.onVirtualKeyboardToggle === 'function') { + this.config.onVirtualKeyboardToggle(this, this.virtualKeyboardVisible, this.virtualKeyboard); + } + return false; + } + /** + * Apply a style (color, bold, italic, etc...). + * + * If there is a selection, the style is applied to the selection + * + * If the selection already has this style, remove it. If the selection + * has the style partially applied (i.e. only some sections), remove it from + * those sections, and apply it to the entire selection. + * + * If there is no selection, the style will apply to the next character typed. + * + * @param {object} style an object with the following properties. All the + * properties are optional, but they can be combined. + * + * @param {string} [style.mode=''] - Either `'math'`, `'text'` or '`command`' + * @param {string} [style.color=''] - The text/fill color, as a CSS RGB value or + * a string for some 'well-known' colors, e.g. 'red', '#f00', etc... + * + * @param {string} [style.backgroundColor=''] - The background color. + * + * @param {string} [style.fontFamily=''] - The font family used to render text. + * This value can the name of a locally available font, or a CSS font stack, e.g. + * "Avenir", "Georgia, serif", etc... + * This can also be one of the following TeX-specific values: + * - 'cmr': Computer Modern Roman, serif + * - 'cmss': Computer Modern Sans-serif, latin characters only + * - 'cmtt': Typewriter, slab, latin characters only + * - 'cal': Calligraphic style, uppercase latin letters and digits only + * - 'frak': Fraktur, gothic, uppercase, lowercase and digits + * - 'bb': Blackboard bold, uppercase only + * - 'scr': Script style, uppercase only + * + * @param {string} [style.series=''] - The font 'series', i.e. weight and + * stretch. The following values can be combined, for example: "ebc": extra-bold, + * condensed. Aside from 'b', these attributes may not have visible effect if the + * font family does not support this attribute: + * - 'ul' ultra-light weight + * - 'el': extra-light + * - 'l': light + * - 'sl': semi-light + * - 'm': medium (default) + * - 'sb': semi-bold + * - 'b': bold + * - 'eb': extra-bold + * - 'ub': ultra-bold + * - 'uc': ultra-condensed + * - 'ec': extra-condensed + * - 'c': condensed + * - 'sc': semi-condensed + * - 'n': normal (default) + * - 'sx': semi-expanded + * - 'x': expanded + * - 'ex': extra-expanded + * - 'ux': ultra-expanded + * + * @param {string} [style.shape=''] - The font 'shape', i.e. italic. + * - 'auto': italic or upright, depending on mode and letter (single letters are + * italic in math mode) + * - 'up': upright + * - 'it': italic + * - 'sl': slanted or oblique (often the same as italic) + * - 'sc': small caps + * - 'ol': outline + * + * @param {string} [style.size=''] - The font size: 'size1'...'size10' + * 'size5' is the default size + * @method MathField#$applyStyle + * */ -MathField.prototype._attachButtonHandlers = function (el, command) { - var that = this; + }, { + key: "$applyStyle", + value: function $applyStyle(style) { + this._resetKeystrokeBuffer(); - if (_typeof(command) === 'object' && (command.default || command.pressed)) { - // Attach the default (no modifiers pressed) command to the element - if (command.default) { - el.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(command.default)); - } + style = validateStyle(style); - if (command.alt) { - el.setAttribute('data-' + this.config.namespace + 'command-alt', JSON.stringify(command.alt)); - } + if (style.mode) { + // There's a mode ('text', 'math', 'command') change + if (this.mathlist.isCollapsed()) { + // Nothing selected + this.switchMode_(style.mode); + } else { + // Convert the selection from one mode to another + var previousMode = this.mode; + var targetMode = (this.mathlist.anchorMode() || this.config.default) === 'math' ? 'text' : 'math'; + var convertedSelection = this.$selectedText('ASCIIMath'); - if (command.altshift) { - el.setAttribute('data-' + this.config.namespace + 'command-altshift', JSON.stringify(command.altshift)); - } + if (targetMode === 'math' && /^"[^"]+"$/.test(convertedSelection)) { + convertedSelection = convertedSelection.slice(1, -1); + } - if (command.shift) { - el.setAttribute('data-' + this.config.namespace + 'command-shift', JSON.stringify(command.shift)); - } // .pressed: command to perform when the button is pressed (i.e. - // on mouse down/touch). Otherwise the command is performed when - // the button is released + this.$insert(convertedSelection, { + mode: targetMode, + selectionMode: 'item', + format: targetMode === 'text' ? 'text' : 'ASCIIMath' + }); + this.mode = targetMode; + if (this.groupIsSelected()) { + // The entire group was selected. Adjust parent mode if + // appropriate + var parent = this.mathlist.parent(); - if (command.pressed) { - el.setAttribute('data-' + this.config.namespace + 'command-pressed', JSON.stringify(command.pressed)); - } + if (parent && (parent.type === 'group' || parent.type === 'root')) { + parent.mode = targetMode; + } + } // Notify of mode change - if (command.pressAndHoldStart) { - el.setAttribute('data-' + this.config.namespace + 'command-pressAndHoldStart', JSON.stringify(command.pressAndHoldStart)); - } - if (command.pressAndHoldEnd) { - el.setAttribute('data-' + this.config.namespace + 'command-pressAndHoldEnd', JSON.stringify(command.pressAndHoldEnd)); - } - } else { - // We need to turn the command into a string to attach it to the dataset - // associated with the button (the command could be an array made of a - // selector and one or more parameters) - el.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(command)); - } + if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') { + this.config.onModeChange(this, this.mode); + } + } - var pressHoldStart; - var pressHoldElement; - var touchID; - var syntheticTarget; // Target while touch move + delete style.mode; + } - var pressAndHoldTimer; - on(el, 'mousedown touchstart:passive', function (ev) { - if (ev.type !== 'mousedown' || ev.buttons === 1) { - // The primary button was pressed or the screen was tapped. - ev.stopPropagation(); - ev.preventDefault(); - el.classList.add('pressed'); - pressHoldStart = Date.now(); // Record the ID of the primary touch point for tracking on touchmove + if (this.mathlist.isCollapsed()) { + // No selection, let's update the 'current' style + if (this.style.fontSeries && style.fontSeries === this.style.fontSeries) { + style.fontSeries = 'auto'; + } - if (ev.type === 'touchstart') touchID = ev.changedTouches[0].identifier; // Parse the JSON to get the command (and its optional arguments) - // and perform it immediately + if (style.fontShape && style.fontShape === this.style.fontShape) { + style.fontShape = 'auto'; + } - var _command2 = el.getAttribute('data-' + that.config.namespace + 'command-pressed'); + if (style.color && style.color === this.style.color) { + style.color = 'none'; + } - if (_command2) { - that.perform(JSON.parse(_command2)); - } // If there is a `press and hold start` command, perform it - // after a delay, if we're still pressed by then. + if (style.backgroundColor && style.backgroundColor === this.style.backgroundColor) { + style.backgroundColor = 'none'; + } + if (style.fontSize && style.fontSize === this.style.fontSize) { + style.fontSize = 'auto'; + } - var pressAndHoldStartCommand = el.getAttribute('data-' + that.config.namespace + 'command-pressAndHoldStart'); + this.style = _objectSpread({}, this.style, {}, style); // This style will be used the next time an atom is inserted + } else { + // Change the style of the selection + this.mathlist._applyStyle(style); - if (pressAndHoldStartCommand) { - pressHoldElement = el; - if (pressAndHoldTimer) clearTimeout(pressAndHoldTimer); - pressAndHoldTimer = window.setTimeout(function () { - if (el.classList.contains('pressed')) { - that.perform(JSON.parse(pressAndHoldStartCommand)); - } - }, 300); + this.undoManager.snapshot(this.config); } + + return true; } - }); - on(el, 'mouseleave touchcancel', function () { - el.classList.remove('pressed'); // let command = el.getAttribute('data-' + that.config.namespace + - // 'command-pressAndHoldEnd'); - // const now = Date.now(); - // if (command && now > pressHoldStart + 300) { - // that.perform(JSON.parse(command)); - // } - }); - on(el, 'touchmove:passive', function (ev) { - // Unlike with mouse tracking, touch tracking only sends events - // to the target that was originally tapped on. For consistency, - // we want to mimic the behavior of the mouse interaction by - // tracking the touch events and dispatching them to potential targets - ev.preventDefault(); - - for (var i = 0; i < ev.changedTouches.length; i++) { - if (ev.changedTouches[i].identifier === touchID) { - // Found a touch matching our primary/tracked touch - var target = document.elementFromPoint(ev.changedTouches[i].clientX, ev.changedTouches[i].clientY); - - if (target !== syntheticTarget && syntheticTarget) { - syntheticTarget.dispatchEvent(new MouseEvent('mouseleave'), { - bubbles: true - }); - syntheticTarget = null; + }, { + key: "$hasFocus", + value: function $hasFocus() { + return document.hasFocus() && document.activeElement === this.textarea; + } + }, { + key: "$focus", + value: function $focus() { + if (!this.$hasFocus()) { + // The textarea may be a span (on mobile, for example), so check that + // it has a focus() before calling it. + if (this.textarea.focus) { + this.textarea.focus(); } - if (target) { - syntheticTarget = target; - target.dispatchEvent(new MouseEvent('mouseenter', { - bubbles: true, - buttons: 1 - })); + this._announce('line'); + } + } + }, { + key: "$blur", + value: function $blur() { + if (this.$hasFocus()) { + if (this.textarea.blur) { + this.textarea.blur(); } } } - }); - on(el, 'mouseenter', function (ev) { - if (ev.buttons === 1) { - el.classList.add('pressed'); + }, { + key: "$select", + value: function $select() { + this.mathlist.selectAll_(); } - }); - on(el, 'mouseup touchend click', function (ev) { - if (syntheticTarget) { - ev.stopPropagation(); - ev.preventDefault(); - var target = syntheticTarget; - syntheticTarget = null; - target.dispatchEvent(new MouseEvent('mouseup', { - bubbles: true - })); - return; + }, { + key: "$clearSelection", + value: function $clearSelection() { + this.mathlist.delete_(); } + /** + * @param {string} keys - A string representation of a key combination. + * + * For example `'Alt-KeyU'`. + * + * See [W3C UIEvents](https://www.w3.org/TR/uievents/#code-virtual-keyboards) + * @param {Event} evt + * @return {boolean} + * @method MathField#$keystroke + */ - el.classList.remove('pressed'); - el.classList.add('active'); - - if (ev.type === 'click' && ev.detail !== 0) { - // This is a click event triggered by a mouse interaction - // (and not a keyboard interaction) - // Ignore it, we'll handle the mouseup (or touchend) instead. - ev.stopPropagation(); - ev.preventDefault(); - return; - } // Since we want the active state to be visible for a while, - // use a timer to remove it after a short delay - - - window.setTimeout(function () { - el.classList.remove('active'); - }, 150); - var command = el.getAttribute('data-' + that.config.namespace + 'command-pressAndHoldEnd'); - var now = Date.now(); // If the button has not been pressed for very long or if we were - // not the button that started the press and hold, don't consider - // it a press-and-hold. - - if (el !== pressHoldElement || now < pressHoldStart + 300) { - command = undefined; + }, { + key: "$keystroke", + value: function $keystroke(keys, evt) { + // This is the public API, while onKeystroke is the + // internal handler + return this._onKeystroke(keys, evt); } + /** + * Simulate a user typing the keys indicated by text. + * @param {string} text - A sequence of one or more characters. + * @method MathField#$typedText + */ - if (!command && ev.altKey && ev.shiftKey) { - command = el.getAttribute('data-' + that.config.namespace + 'command-altshift'); + }, { + key: "$typedText", + value: function $typedText(text) { + // This is the public API, while onTypedText is the + // internal handler + this._onTypedText(text); } + /** + * + * @param {string} text + * @param {Object.} [options={}] + * @param {boolean} options.focus - If true, the mathfield will be focused + * @param {boolean} options.feedback - If true, provide audio and haptic feedback + * @param {boolean} options.simulateKeystroke - If true, generate some synthetic + * keystrokes (useful to trigger inline shortcuts, for example) + * @private + */ - if (!command && ev.altKey) { - command = el.getAttribute('data-' + that.config.namespace + 'command-alt'); + }, { + key: "typedText_", + value: function typedText_(text, options) { + return this._onTypedText(text, options); } + /** + * + * Update the configuration options for this mathfield. + * + * @param {MathFieldConfig} [config={}] See {@tutorial CONFIG} for details. + * + * @method MathField#$setConfig + */ - if (!command && ev.shiftKey) { - command = el.getAttribute('data-' + that.config.namespace + 'command-shift'); - } + }, { + key: "$setConfig", + value: function $setConfig(conf) { + if (!this.config) { + this.config = { + smartFence: true, + smartSuperscript: true, + scriptDepth: [Infinity, Infinity], + removeExtraneousParentheses: true, + overrideDefaultInlineShortcuts: false, + virtualKeyboard: '', + virtualKeyboardLayout: 'qwerty', + namespace: '' + }; + } - if (!command) { - command = el.getAttribute('data-' + that.config.namespace + 'command'); - } + this.config = _objectSpread({}, this.config, {}, conf); - if (command) { - // Parse the JSON to get the command (and its optional arguments) - // and perform it - that.perform(JSON.parse(command)); - } + if (this.config.scriptDepth !== undefined && !Array.isArray(this.config.scriptDepth)) { + var depth = parseInt(this.config.scriptDepth); + this.config.scriptDepth = [depth, depth]; + } - ev.stopPropagation(); - ev.preventDefault(); - }); -}; + if (typeof this.config.removeExtraneousParentheses === 'undefined') { + this.config.removeExtraneousParentheses = true; + } -MathField.prototype._makeButton = function (label, cls, ariaLabel, command) { - var button = document.createElement('span'); - button.innerHTML = label; - if (cls) button.classList.add([].slice.call(cls.split(' '))); - if (ariaLabel) button.setAttribute('aria-label', ariaLabel); + this.config.onAnnounce = conf.onAnnounce || _onAnnounce; + this.config.macros = Object.assign({}, _definitions.default.MACROS, this.config.macros); // Validate the namespace (used for `data-` attributes) - this._attachButtonHandlers(button, command); + if (!/^[a-z]*[-]?$/.test(this.config.namespace)) { + throw Error('options.namespace must be a string of lowercase characters only'); + } - return button; -}; -/** - * Alternate options are displayed when a key on the virtual keyboard is pressed - * and held. - * - */ + if (!/-$/.test(this.config.namespace)) { + this.config.namespace += '-'; + } // Localization strings override (or localizations for new locales) + + + _l10n.l10n.locale = this.config.locale || _l10n.l10n.locale; + + _l10n.l10n.merge(this.config.strings); + + this.config.virtualKeyboardLayout = conf.virtualKeyboardLayout || { + 'fr': 'azerty', + 'be': 'azerty', + 'al': 'qwertz', + 'ba': 'qwertz', + 'cz': 'qwertz', + 'de': 'qwertz', + 'hu': 'qwertz', + 'sk': 'qwertz', + 'ch': 'qwertz' + }[_l10n.l10n.locale.substring(0, 2)] || 'qwerty'; // Possible keypress sound feedback + + this.keypressSound = undefined; + this.spacebarKeypressSound = undefined; + this.returnKeypressSound = undefined; + this.deleteKeypressSound = undefined; + + if (this.config.keypressSound) { + if (typeof this.config.keypressSound === 'string') { + this.keypressSound = new Audio(); + this.keypressSound.preload = 'none'; + this.keypressSound.src = this.config.keypressSound; + this.keypressSound.volume = AUDIO_FEEDBACK_VOLUME; + this.spacebarKeypressSound = this.keypressSound; + this.returnKeypressSound = this.keypressSound; + this.deleteKeypressSound = this.keypressSound; + } else { + console.assert(this.config.keypressSound.default); + this.keypressSound = new Audio(); + this.keypressSound.preload = 'none'; + this.keypressSound.src = this.config.keypressSound.default; + this.keypressSound.volume = AUDIO_FEEDBACK_VOLUME; + this.spacebarKeypressSound = this.keypressSound; + this.returnKeypressSound = this.keypressSound; + this.deleteKeypressSound = this.keypressSound; + + if (this.config.keypressSound.spacebar) { + this.spacebarKeypressSound = new Audio(); + this.spacebarKeypressSound.preload = 'none'; + this.spacebarKeypressSound.src = this.config.keypressSound.spacebar; + this.spacebarKeypressSound.volume = AUDIO_FEEDBACK_VOLUME; + } + if (this.config.keypressSound.return) { + this.returnKeypressSound = new Audio(); + this.returnKeypressSound.preload = 'none'; + this.returnKeypressSound.src = this.config.keypressSound.return; + this.returnKeypressSound.volume = AUDIO_FEEDBACK_VOLUME; + } -MathField.prototype.showAlternateKeys_ = function (keycap, altKeys) { - var altContainer = getSharedElement('mathlive-alternate-keys-panel', 'ML__keyboard alternate-keys'); + if (this.config.keypressSound.delete) { + this.deleteKeypressSound = new Audio(); + this.deleteKeypressSound.preload = 'none'; + this.deleteKeypressSound.src = this.config.keypressSound.delete; + this.deleteKeypressSound.volume = AUDIO_FEEDBACK_VOLUME; + } + } + } - if (this.virtualKeyboard.classList.contains('material')) { - altContainer.classList.add('material'); - } + if (this.config.plonkSound) { + this.plonkSound = new Audio(); + this.plonkSound.preload = 'none'; + this.plonkSound.src = this.config.plonkSound; + this.plonkSound.volume = AUDIO_FEEDBACK_VOLUME; + } + } + /** + * + * Speak some part of the expression, either with or without synchronized highlighting. + * + * @param {string} amount (all, selection, left, right, group, parent) + * @param {object} speakOptions + * @param {boolean} speakOptions.withHighlighting - If true, synchronized highlighting of speech will happen (if possible). Default is false. + * + * @method MathField#speak_ + */ - if (altKeys.length >= 7) { - // Width 4 - altContainer.style.width = '286px'; - } else if (altKeys.length === 4 || altKeys.length === 2) { - // Width 2 - altContainer.style.width = '146px'; - } else if (altKeys.length === 1) { - // Width 1 - altContainer.style.width = '86px'; - } else { - // Width 3 - altContainer.style.width = '146px'; - } // Reset container height + }, { + key: "speak_", + value: function speak_(amount, speakOptions) { + speakOptions = speakOptions || { + withHighlighting: false + }; + function getAtoms(mathField, amount) { + var result = null; - altContainer.style.height = 'auto'; - var markup = ''; - var _iteratorNormalCompletion4 = true; - var _didIteratorError4 = false; - var _iteratorError4 = undefined; + switch (amount) { + case 'all': + result = mathField.mathlist.root; + break; - try { - for (var _iterator4 = altKeys[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) { - var altKey = _step4.value; - markup += '= 1) { + result = []; - if (altKey.command) { - markup += " data-command='" + altKey.command.replace(/"/g, '"') + "'"; - } + for (var i = 1; i <= last; i++) { + result.push(siblings[i]); + } + } - if (altKey.aside) { - markup += ' data-aside="' + altKey.aside.replace(/"/g, '"') + '"'; - } + break; + } - if (altKey.classes) { - markup += ' data-classes="' + altKey.classes + '"'; - } - } + case 'right': + { + var _siblings = mathField.mathlist.siblings(); - markup += '>'; - markup += altKey.label || ''; - markup += ''; - } - } catch (err) { - _didIteratorError4 = true; - _iteratorError4 = err; - } finally { - try { - if (!_iteratorNormalCompletion4 && _iterator4.return != null) { - _iterator4.return(); - } - } finally { - if (_didIteratorError4) { - throw _iteratorError4; - } - } - } + var first = mathField.mathlist.endOffset() + 1; - markup = '
    ' + markup + '
'; - altContainer.innerHTML = markup; + if (first <= _siblings.length - 1) { + result = []; - _editorVirtualKeyboard.default.makeKeycap(this, altContainer.getElementsByTagName('li'), 'performAlternateKeys'); + for (var _i2 = first; _i2 <= _siblings.length - 1; _i2++) { + result.push(_siblings[_i2]); + } + } - var keycapEl = this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible div.rows ul li[data-alt-keys="' + keycap + '"]'); - var position = keycapEl.getBoundingClientRect(); + break; + } - if (position) { - if (position.top - altContainer.clientHeight < 0) { - // altContainer.style.maxWidth = '320px'; // Up to six columns - altContainer.style.width = 'auto'; + case 'start': + case 'end': + // not yet implemented + break; - if (altKeys.length <= 6) { - altContainer.style.height = '56px'; // 1 row - } else if (altKeys.length <= 12) { - altContainer.style.height = '108px'; // 2 rows - } else { - altContainer.style.height = '205px'; // 3 rows - } - } + case 'group': + result = mathField.mathlist.siblings(); + break; - var top = (position.top - altContainer.clientHeight + 5).toString() + 'px'; - var left = Math.max(0, Math.min(window.innerWidth - altContainer.offsetWidth, (position.left + position.right - altContainer.offsetWidth) / 2)) + 'px'; - altContainer.style.transform = 'translate(' + left + ',' + top + ')'; - altContainer.classList.add('is-visible'); - } + case 'parent': + { + var parent = mathField.mathlist.parent(); - return false; -}; + if (parent && parent.type !== 'root') { + result = mathField.mathlist.parent(); + } -MathField.prototype.hideAlternateKeys_ = function () { - var altContainer = document.getElementById('mathlive-alternate-keys-panel'); + break; + } - if (altContainer) { - altContainer.classList.remove('is-visible'); - altContainer.innerHTML = ''; - delete releaseSharedElement(altContainer); - } + default: + console.log('unknown atom type "' + mathField.type + '"'); + break; + } - return false; -}; -/** - * The command invoked when an alternate key is pressed. - * We need to hide the Alternate Keys panel, then perform the - * command. - */ + return result; + } + function getFailedSpeech(amount) { + var result = ''; -MathField.prototype.performAlternateKeys_ = function (command) { - this.hideAlternateKeys_(); - return this.perform(command); -}; + switch (amount) { + case 'all': + console.log("Internal failure: speak all failed"); + break; -MathField.prototype.switchKeyboardLayer_ = function (layer) { - if (this.config.virtualKeyboardMode !== 'off') { - if (layer !== 'lower-command' && layer !== 'upper-command' && layer !== 'symbols-command') { - // If we switch to a non-command keyboard layer, first exit command mode. - this.complete_(); - } + case 'selection': + result = 'no selection'; + break; - this.showVirtualKeyboard_(); // If the alternate keys panel was visible, hide it + case 'left': + result = 'at start'; + break; - this.hideAlternateKeys_(); // If we were in a temporarily shifted state (shift-key held down) - // restore our state before switching to a new layer. + case 'right': + result = 'at end'; + break; - this.unshiftKeyboardLayer_(); - var layers = this.virtualKeyboard.getElementsByClassName('keyboard-layer'); // Search for the requested layer + case 'group': + console.log("Internal failure: speak group failed"); + break; - var found = false; + case 'parent': + result = 'no parent'; + break; - for (var i = 0; i < layers.length; i++) { - if (layers[i].id === layer) { - found = true; - break; - } - } // We did find the layer, switch to it. - // If we didn't find it, do nothing and keep the current layer - - - if (found) { - for (var _i = 0; _i < layers.length; _i++) { - if (layers[_i].id === layer) { - layers[_i].classList.add('is-visible'); - } else { - layers[_i].classList.remove('is-visible'); + default: + console.log('unknown speak_ param value: "' + amount + '"'); + break; } - } - } - - this.focus(); - } - - return true; -}; -/** - * Temporarily change the labels and the command of the keys - * (for example when a modifier key is held down.) - */ - - -MathField.prototype.shiftKeyboardLayer_ = function () { - var keycaps = this.virtualKeyboard.querySelectorAll('div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action'); - if (keycaps) { - for (var i = 0; i < keycaps.length; i++) { - var keycap = keycaps[i]; - var shiftedContent = keycap.getAttribute('data-shifted'); - - if (shiftedContent || /^[a-z]$/.test(keycap.innerHTML)) { - keycap.setAttribute('data-unshifted-content', keycap.innerHTML); - - if (!shiftedContent) { - shiftedContent = keycap.innerHTML.toUpperCase(); - } + return result; + } - keycap.innerHTML = shiftedContent; - var command = keycap.getAttribute('data-' + this.config.namespace + 'command'); + var atoms = getAtoms(this, amount); - if (command) { - keycap.setAttribute('data-unshifted-command', command); - var shiftedCommand = keycap.getAttribute('data-shifted-command'); + if (atoms === null) { + this.config.handleSpeak(getFailedSpeech(amount)); + return false; + } - if (shiftedCommand) { - keycap.setAttribute('data-' + this.config.namespace + 'command', shiftedCommand); - } else { - var commandObj = JSON.parse(command); + var options = _objectSpread({}, this.config); - if (Array.isArray(commandObj)) { - commandObj[1] = commandObj[1].toUpperCase(); - } + if (speakOptions.withHighlighting || options.speechEngine === 'amazon') { + options.textToSpeechMarkup = window.sre && options.textToSpeechRules === 'sre' ? 'ssml_step' : 'ssml'; - keycap.setAttribute('data-' + this.config.namespace + 'command', JSON.stringify(commandObj)); - } + if (speakOptions.withHighlighting) { + options.generateID = true; } } - } - } - - return false; -}; -/** - * Restore the key labels and commands to the state before a modifier key - * was pressed. - * - */ + var text = _mathAtom.default.toSpeakableText(atoms, options); -MathField.prototype.unshiftKeyboardLayer_ = function () { - var keycaps = this.virtualKeyboard.querySelectorAll('div.keyboard-layer.is-visible .rows .keycap, div.keyboard-layer.is-visible .rows .action'); + if (speakOptions.withHighlighting) { + window.mathlive.readAloudMathField = this; - if (keycaps) { - for (var i = 0; i < keycaps.length; i++) { - var keycap = keycaps[i]; - var content = keycap.getAttribute('data-unshifted-content'); + this._render({ + forHighlighting: true + }); - if (content) { - keycap.innerHTML = content; + if (this.config.handleReadAloud) { + this.config.handleReadAloud(this.field, text, this.config); + } + } else { + if (this.config.handleSpeak) { + this.config.handleSpeak(text, options); + } } - var command = keycap.getAttribute('data-unshifted-command'); - - if (command) { - keycap.setAttribute('data-' + this.config.namespace + 'command', command); - } + return false; } - } + }]); - return false; -}; - -MathField.prototype.insertAndUnshiftKeyboardLayer_ = function (c) { - this.insert_(c); - this.unshiftKeyboardLayer_(); - return true; -}; -/* Toggle the virtual keyboard, but switch to the alternate theme if available */ - - -MathField.prototype.toggleVirtualKeyboardAlt_ = function () { - var hadAltTheme = false; - - if (this.virtualKeyboard) { - hadAltTheme = this.virtualKeyboard.classList.contains('material'); - this.virtualKeyboard.remove(); - delete this.virtualKeyboard; - this.virtualKeyboard = null; - } - - this.showVirtualKeyboard_(hadAltTheme ? '' : 'material'); - return false; -}; -/* Toggle the virtual keyboard, but switch another keyboard layout */ - - -MathField.prototype.toggleVirtualKeyboardShift_ = function () { - this.config.virtualKeyboardLayout = { - 'qwerty': 'azerty', - 'azerty': 'qwertz', - 'qwertz': 'dvorak', - 'dvorak': 'colemak', - 'colemak': 'qwerty' - }[this.config.virtualKeyboardLayout]; - var layer = this.virtualKeyboard ? this.virtualKeyboard.querySelector('div.keyboard-layer.is-visible') : null; - layer = layer ? layer.id : ''; - - if (this.virtualKeyboard) { - this.virtualKeyboard.remove(); - delete this.virtualKeyboard; - this.virtualKeyboard = null; - } - - this.showVirtualKeyboard_(); - if (layer) this.switchKeyboardLayer_(layer); - return false; -}; - -MathField.prototype.showVirtualKeyboard_ = function (theme) { - this.virtualKeyboardVisible = false; - this.toggleVirtualKeyboard_(theme); - return false; -}; - -MathField.prototype.hideVirtualKeyboard_ = function () { - this.virtualKeyboardVisible = true; - this.toggleVirtualKeyboard_(); - return false; -}; - -MathField.prototype.toggleVirtualKeyboard_ = function (theme) { - this.virtualKeyboardVisible = !this.virtualKeyboardVisible; - - if (this.virtualKeyboardVisible) { - if (this.virtualKeyboard) { - this.virtualKeyboard.classList.add('is-visible'); - } else { - // Construct the virtual keyboard - this.virtualKeyboard = _editorVirtualKeyboard.default.make(this, theme); // Let's make sure that tapping on the keyboard focuses the field - - on(this.virtualKeyboard, 'touchstart:passive mousedown', function () { - that.focus(); - }); - document.body.appendChild(this.virtualKeyboard); - } // For the transition effect to work, the property has to be changed - // after the insertion in the DOM. Use setTimeout - - - var that = this; - window.setTimeout(function () { - that.virtualKeyboard.classList.add('is-visible'); - }, 1); - } else if (this.virtualKeyboard) { - this.virtualKeyboard.classList.remove('is-visible'); - } - - if (typeof this.config.onVirtualKeyboardToggle === 'function') { - this.config.onVirtualKeyboardToggle(this, this.virtualKeyboardVisible, this.virtualKeyboard); - } - - return false; -}; + return MathField; +}(); /** - * Validate a style specification object - * @param {object} style + * Utility function that returns the element which has the caret + * + * @param {DomElement} el + * @private */ -function validateStyle(style) { - var result = {}; - - if (typeof style.mode === 'string') { - result.mode = style.mode.toLowerCase(); - console.assert(result.mode === 'math' || result.mode === 'text' || result.mode === 'command'); - } - - if (typeof style.color === 'string') { - result.color = style.color; - } - - if (typeof style.backgroundColor === 'string') { - result.backgroundColor = style.backgroundColor; - } - - if (typeof style.fontFamily === 'string') { - result.fontFamily = style.fontFamily; - } - - if (typeof style.series === 'string') { - result.fontSeries = style.series; - } - - if (typeof style.fontSeries === 'string') { - result.fontSeries = style.fontSeries.toLowerCase(); - } - - if (result.fontSeries) { - result.fontSeries = { - "bold": 'b', - "medium": 'm', - "normal": 'mn' - }[result.fontSeries] || result.fontSeries; - } - - if (typeof style.shape === 'string') { - result.fontShape = style.shape; - } - - if (typeof style.fontShape === 'string') { - result.fontShape = style.fontShape.toLowerCase(); - } - - if (result.fontShape) { - result.fontShape = { - "italic": 'it', - "up": 'n', - "upright": 'n', - "normal": 'n' - }[result.fontShape] || result.fontShape; - } - - if (typeof style.size === 'string') { - result.fontSize = style.size; - } else if (typeof style.size === 'number') { - result.fontSize = 'size' + Math.min(0, Math.max(10, style.size)); - } - - if (typeof style.fontSize === 'string') { - result.fontSize = style.fontSize.toLowerCase(); - } - - if (result.fontSize) { - result.fontSize = { - 'tiny': 'size1', - 'scriptsize': 'size2', - 'footnotesize': 'size3', - 'small': 'size4', - 'normal': 'size5', - 'normalsize': 'size5', - 'large': 'size6', - 'Large': 'size7', - 'LARGE': 'size8', - 'huge': 'size9', - 'Huge': 'size10' - }[result.fontSize] || result.fontSize; +function _findElementWithCaret(el) { + if (el.classList.contains('ML__caret') || el.classList.contains('ML__text-caret') || el.classList.contains('ML__command-caret')) { + return el; } + var result; + Array.from(el.children).forEach(function (child) { + result = result || _findElementWithCaret(child); + }); return result; } /** - * Apply a style (color, bold, italic, etc...). - * - * If there is a selection, the style is applied to the selection - * - * If the selection already has this style, remove it. If the selection - * has the style partially applied (i.e. only some sections), remove it from - * those sections, and apply it to the entire selection. - * - * If there is no selection, the style will apply to the next character typed. - * - * @param {object} style an object with the following properties. All the - * properties are optional, but they can be combined. - * - * @param {string} [style.mode=''] - Either `'math'`, `'text'` or '`command`' - * @param {string} [style.color=''] - The text/fill color, as a CSS RGB value or - * a string for some 'well-known' colors, e.g. 'red', '#f00', etc... - * - * @param {string} [style.backgroundColor=''] - The background color. - * - * @param {string} [style.fontFamily=''] - The font family used to render text. - * This value can the name of a locally available font, or a CSS font stack, e.g. - * "Avenir", "Georgia, serif", etc... - * This can also be one of the following TeX-specific values: - * - 'cmr': Computer Modern Roman, serif - * - 'cmss': Computer Modern Sans-serif, latin characters only - * - 'cmtt': Typewriter, slab, latin characters only - * - 'cal': Calligraphic style, uppercase latin letters and digits only - * - 'frak': Fraktur, gothic, uppercase, lowercase and digits - * - 'bb': Blackboard bold, uppercase only - * - 'scr': Script style, uppercase only - * - * @param {string} [style.series=''] - The font 'series', i.e. weight and - * stretch. The following values can be combined, for example: "ebc": extra-bold, - * condensed. Aside from 'b', these attributes may not have visible effect if the - * font family does not support this attribute: - * - 'ul' ultra-light weight - * - 'el': extra-light - * - 'l': light - * - 'sl': semi-light - * - 'm': medium (default) - * - 'sb': semi-bold - * - 'b': bold - * - 'eb': extra-bold - * - 'ub': ultra-bold - * - 'uc': ultra-condensed - * - 'ec': extra-condensed - * - 'c': condensed - * - 'sc': semi-condensed - * - 'n': normal (default) - * - 'sx': semi-expanded - * - 'x': expanded - * - 'ex': extra-expanded - * - 'ux': ultra-expanded - * - * @param {string} [style.shape=''] - The font 'shape', i.e. italic. - * - 'auto': italic or upright, depending on mode and letter (single letters are - * italic in math mode) - * - 'up': upright - * - 'it': italic - * - 'sl': slanted or oblique (often the same as italic) - * - 'sc': small caps - * - 'ol': outline - * - * @param {string} [style.size=''] - The font size: 'size1'...'size10' - * 'size5' is the default size - * */ - - -MathField.prototype.$applyStyle = MathField.prototype.applyStyle_ = function (style) { - this._resetKeystrokeBuffer(); - - style = validateStyle(style); - - if (style.mode) { - // There's a mode ('text', 'math', 'command') change - if (this.mathlist.isCollapsed()) { - // Nothing selected - this.switchMode_(style.mode); - } else { - // Convert the selection from one mode to another - var previousMode = this.mode; - var targetMode = (this.mathlist.anchorMode() || this.config.default) === 'math' ? 'text' : 'math'; - var convertedSelection = this.$selectedText('ASCIIMath'); - - if (targetMode === 'math' && /^"[^"]+"$/.test(convertedSelection)) { - convertedSelection = convertedSelection.slice(1, -1); - } - - this.insert(convertedSelection, { - mode: targetMode, - selectionMode: 'item', - format: targetMode === 'text' ? 'text' : 'ASCIIMath' - }); - this.mode = targetMode; - - if (this.groupIsSelected()) { - // The entire group was selected. Adjust parent mode if - // appropriate - var parent = this.mathlist.parent(); - - if (parent && (parent.type === 'group' || parent.type === 'root')) { - parent.mode = targetMode; - } - } // Notify of mode change - - - if (this.mode !== previousMode && typeof this.config.onModeChange === 'function') { - this.config.onModeChange(this, this.mode); - } - } - - delete style.mode; - } - - if (this.mathlist.isCollapsed()) { - // No selection, let's update the 'current' style - if (this.style.fontSeries && style.fontSeries === this.style.fontSeries) { - style.fontSeries = 'auto'; - } - - if (style.fontShape && style.fontShape === this.style.fontShape) { - style.fontShape = 'auto'; - } - - if (style.color && style.color === this.style.color) { - style.color = 'none'; - } - - if (style.backgroundColor && style.backgroundColor === this.style.backgroundColor) { - style.backgroundColor = 'none'; - } - - if (style.fontSize && style.fontSize === this.style.fontSize) { - style.fontSize = 'auto'; - } - - this.style = _objectSpread({}, this.style, style); // This style will be used the next time an atom is inserted - } else { - // Change the style of the selection - this.mathlist._applyStyle(style); - - this.undoManager.snapshot(this.config); - } - - return true; -}; - -MathField.prototype.hasFocus = MathField.prototype.$hasFocus = function () { - return document.hasFocus() && document.activeElement === this.textarea; -}; - -MathField.prototype.focus = MathField.prototype.$focus = function () { - if (!this.hasFocus()) { - // The textarea may be a span (on mobile, for example), so check that - // it has a focus() before calling it. - if (this.textarea.focus) this.textarea.focus(); - - this._announce('line'); - } -}; - -MathField.prototype.blur = MathField.prototype.$blur = function () { - if (this.hasFocus()) { - if (this.textarea.blur) { - this.textarea.blur(); - } - } -}; - -MathField.prototype.select = MathField.prototype.$select = function () { - this.mathlist.selectAll_(); -}; - -MathField.prototype.clearSelection = MathField.prototype.$clearSelection = function () { - this.mathlist.delete_(); -}; -/** - * @param {string} keys - A string representation of a key combination. - * - * For example `'Alt-KeyU'`. - * - * See [W3C UIEvents](https://www.w3.org/TR/uievents/#code-virtual-keyboards) - * @param {Event} evt - * @return {boolean} - * @method MathField#$keystroke - */ - - -MathField.prototype.keystroke = MathField.prototype.$keystroke = function (keys, evt) { - // This is the public API, while onKeystroke is the - // internal handler - return this._onKeystroke(keys, evt); -}; -/** - * Simulate a user typing the keys indicated by text. - * @param {string} text - A sequence of one or more characters. - * @method MathField#$typedText - */ - - -MathField.prototype.typedText = MathField.prototype.$typedText = function (text) { - // This is the public API, while onTypedText is the - // internal handler - this._onTypedText(text); -}; -/** - * - * @param {string} text - * @param {Object.} [options={}] - * @param {boolean} options.focus - If true, the mathfield will be focused - * @param {boolean} options.feedback - If true, provide audio and haptic feedback - * @param {boolean} options.simulateKeystroke - If true, generate some synthetic - * keystrokes (useful to trigger inline shortcuts, for example) - */ - - -MathField.prototype.typedText_ = function (text, options) { - return this._onTypedText(text, options); -}; -/** - * - * Update the configuration options for this mathfield. - * - * @param {Object} [config={}] See {@tutorial CONFIG} for details. - * - * @method MathField#$setConfig + * Return a tuple of an element and a distance from point (x, y) + * @param {HTMLElement} el + * @param {number} x + * @param {number} y + * @function module:editor/mathfield#nearestElementFromPoint + * @private */ -MathField.prototype.setConfig = MathField.prototype.$setConfig = function (conf) { - if (!this.config) { - this.config = { - smartFence: true, - smartSuperscript: true, - scriptDepth: [Infinity, Infinity], - removeExtraneousParentheses: true, - overrideDefaultInlineShortcuts: false, - virtualKeyboard: '', - virtualKeyboardLayout: 'qwerty', - namespace: '' - }; - } - - this.config = _objectSpread({}, this.config, conf); - - if (!Array.isArray(this.config.scriptDepth)) { - var depth = parseInt(this.config.scriptDepth); - this.config.scriptDepth = [depth, depth]; - } +function nearestElementFromPoint(el, x, y) { + var result = { + element: null + }; + var considerChildren = true; - if (typeof this.config.removeExtraneousParentheses === 'undefined') { - this.config.removeExtraneousParentheses = true; - } + if (!el.getAttribute('data-atom-id')) { + // This element may not have a matching atom, but its children might + result.distance = Number.POSITIVE_INFINITY; + } else { + result.element = el; // Calculate the (square of the) distance to the rectangle - this.config.onAnnounce = conf.onAnnounce || _onAnnounce; - this.config.macros = Object.assign({}, _definitions.default.MACROS, this.config.macros); // Validate the namespace (used for `data-` attributes) + var r = el.getBoundingClientRect(); + var dx = Math.max(r.left - x, x - r.right); + var dy = Math.max(r.top - y, y - r.bottom); + result.distance = dx * dx + dy * dy; // Only consider children if the target is inside the (horizontal) + // bounds of the element. + // This avoid searching the numerator/denominator when a fraction + // is the last element in the formula. - if (!/^[a-z]*[-]?$/.test(this.config.namespace)) { - throw Error('options.namespace must be a string of lowercase characters only'); + considerChildren = x >= r.left && x <= r.right; } - if (!/-$/.test(this.config.namespace)) { - this.config.namespace += '-'; - } // Localization strings override (or localizations for new locales) - - - _l10n.l10n.locale = this.config.locale || _l10n.l10n.locale; - - _l10n.l10n.merge(this.config.strings); - - this.config.virtualKeyboardLayout = conf.virtualKeyboardLayout || { - 'fr': 'azerty', - // France - 'be': 'azerty', - // Belgium - 'al': 'qwertz', - // Albania - 'ba': 'qwertz', - // Bosnia - 'cz': 'qwertz', - // Czech - 'de': 'qwertz', - // Germany - 'hu': 'qwertz', - // Hungary - 'sk': 'qwertz', - // Slovakia - 'ch': 'qwertz' // Switzerland - - }[_l10n.l10n.locale.substring(0, 2)] || 'qwerty'; // Possible keypress sound feedback - - this.keypressSound = undefined; - this.spacebarKeypressSound = undefined; - this.returnKeypressSound = undefined; - this.deleteKeypressSound = undefined; - - if (this.config.keypressSound) { - if (typeof this.config.keypressSound === 'string') { - this.keypressSound = new Audio(); - this.keypressSound.preload = 'none'; - this.keypressSound.src = this.config.keypressSound; - this.keypressSound.volume = AUDIO_FEEDBACK_VOLUME; - this.spacebarKeypressSound = this.keypressSound; - this.returnKeypressSound = this.keypressSound; - this.deleteKeypressSound = this.keypressSound; - } else { - console.assert(this.config.keypressSound.default); - this.keypressSound = new Audio(); - this.keypressSound.preload = 'none'; - this.keypressSound.src = this.config.keypressSound.default; - this.keypressSound.volume = AUDIO_FEEDBACK_VOLUME; - this.spacebarKeypressSound = this.keypressSound; - this.returnKeypressSound = this.keypressSound; - this.deleteKeypressSound = this.keypressSound; + if (considerChildren && el.children) { + Array.from(el.children).forEach(function (child) { + var nearest = nearestElementFromPoint(child, x, y); - if (this.config.keypressSound.spacebar) { - this.spacebarKeypressSound = new Audio(); - this.spacebarKeypressSound.preload = 'none'; - this.spacebarKeypressSound.src = this.config.keypressSound.spacebar; - this.spacebarKeypressSound.volume = AUDIO_FEEDBACK_VOLUME; + if (nearest.element && nearest.distance <= result.distance) { + result = nearest; } + }); + } - if (this.config.keypressSound.return) { - this.returnKeypressSound = new Audio(); - this.returnKeypressSound.preload = 'none'; - this.returnKeypressSound.src = this.config.keypressSound.return; - this.returnKeypressSound.volume = AUDIO_FEEDBACK_VOLUME; - } + return result; +} - if (this.config.keypressSound.delete) { - this.deleteKeypressSound = new Audio(); - this.deleteKeypressSound.preload = 'none'; - this.deleteKeypressSound.src = this.config.keypressSound.delete; - this.deleteKeypressSound.volume = AUDIO_FEEDBACK_VOLUME; - } - } - } +var lastTap; +var tapCount = 0; - if (this.config.plonkSound) { - this.plonkSound = new Audio(); - this.plonkSound.preload = 'none'; - this.plonkSound.src = this.config.plonkSound; - this.plonkSound.volume = AUDIO_FEEDBACK_VOLUME; - } -}; +function speakableText(mathfield, prefix, atoms) { + var config = Object.assign({}, mathfield.config); + config.textToSpeechMarkup = ''; + config.textToSpeechRulesOptions = config.textToSpeechRulesOptions || {}; + config.textToSpeechRulesOptions.markup = 'none'; + return prefix + _mathAtom.default.toSpeakableText(atoms, config); +} /** - * - * Speak some part of the expression, either with or without synchronized highlighting. - * - * @param {string} amount (all, selection, left, right, group, parent) - * @param {object} speakOptions - * @param {boolean} speakOptions.withHighlighting - If true, synchronized highlighting of speech will happen (if possible) - * - * @method MathField#speak_ + * Announce a change in selection or content via the aria-live region. + * This is the default implementation for this function. It can be overridden + * via `config.onAnnounce` + * @param {object} target typically, a MathField + * @param {string} command the command that invoked the change + * @param {Atom[]} [oldMathlist=[]] the previous value of mathlist before the change + * @param {Atom[]} [atomsToSpeak=[] ] + * @method MathField#_onAnnounce + * @private */ -MathField.prototype.speak_ = function (amount, speakOptions) { - speakOptions = speakOptions || { - withHighlighting: false - }; - - function getAtoms(mathField, amount) { - var result = null; - - switch (amount) { - case 'all': - result = mathField.mathlist.root; - break; - - case 'selection': - if (!mathField.mathlist.isCollapsed()) { - result = mathField.mathlist.getSelectedAtoms(); - } - - break; - - case 'left': - { - var siblings = mathField.mathlist.siblings(); - var last = mathField.mathlist.startOffset(); - - if (last >= 1) { - result = []; - - for (var i = 1; i <= last; i++) { - result.push(siblings[i]); - } - } - - break; - } - - case 'right': - { - var _siblings = mathField.mathlist.siblings(); - - var first = mathField.mathlist.endOffset() + 1; - - if (first <= _siblings.length - 1) { - result = []; - - for (var _i2 = first; _i2 <= _siblings.length - 1; _i2++) { - result.push(_siblings[_i2]); - } - } - - break; - } - - case 'start': - case 'end': - // not yet implemented - break; - - case 'group': - result = mathField.mathlist.siblings(); - break; - - case 'parent': - { - var parent = mathField.mathlist.parent(); - - if (parent && parent.type !== 'root') { - result = mathField.mathlist.parent(); - } - - break; - } - - default: - console.log('unknown atom type "' + mathField.type + '"'); - break; - } - - return result; - } - - function getFailedSpeech(amount) { - var result = ''; - - switch (amount) { - case 'all': - console.log("Internal failure: speak all failed"); - break; - - case 'selection': - result = 'no selection'; - break; - - case 'left': - result = 'at start'; - break; - - case 'right': - result = 'at end'; - break; - - case 'group': - console.log("Internal failure: speak group failed"); - break; - - case 'parent': - result = 'no parent'; - break; - - default: - console.log('unknown speak_ param value: "' + amount + '"'); - break; - } - - return result; - } - - var atoms = getAtoms(this, amount); - - if (atoms === null) { - this.config.handleSpeak(getFailedSpeech(amount)); - return false; - } - - var options = this.config; - - if (speakOptions.withHighlighting | options.speechEngine === 'amazon') { - options.textToSpeechMarkup = window.sre && options.textToSpeechRules === 'sre' ? 'ssml_step' : 'ssml'; - } - - var text = _mathAtom.default.toSpeakableText(atoms, options); +function _onAnnounce(target, command, oldMathlist, atomsToSpeak) { + //** Fix: the focus is the end of the selection, so it is before where we want it + var liveText = ''; // const command = moveAmount > 0 ? "right" : "left"; - if (speakOptions.withHighlighting) { - window.mathlive.readAloudMathField = this; + if (command === 'plonk') { + // Use this sound to indicate (minor) errors, for + // example when a command has no effect. + if (target.plonkSound) { + target.plonkSound.load(); + target.plonkSound.play().catch(function (err) { + return console.warn(err); + }); + } // As a side effect, reset the keystroke buffer - this._render({ - forHighlighting: true - }); - if (this.config.handleReadAloud) { - this.config.handleReadAloud(this.field, text, this.config); - } + target._resetKeystrokeBuffer(); + } else if (command === 'delete') { + liveText = speakableText(target, 'deleted: ', atomsToSpeak); //*** FIX: could also be moveUp or moveDown -- do something different like provide context??? + } else if (command === 'focus' || /move/.test(command)) { + //*** FIX -- should be xxx selected/unselected */ + liveText = (target.mathlist.isCollapsed() ? '' : 'selected: ') + target._nextAtomSpeechText(oldMathlist); + } else if (command === 'replacement') { + // announce the contents + liveText = speakableText(target, '', target.mathlist.sibling(0)); + } else if (command === 'line') { + // announce the current line -- currently that's everything + liveText = speakableText(target, '', target.mathlist.root); + target.accessibleNode.innerHTML = '' + _mathAtom.default.toMathML(target.mathlist.root, target.config) + ''; + target.textarea.setAttribute('aria-label', 'after: ' + liveText); + /*** FIX -- testing hack for setting braille ***/ + // target.accessibleNode.focus(); + // console.log("before sleep"); + // sleep(1000).then(() => { + // target.textarea.focus(); + // console.log("after sleep"); + // }); } else { - if (this.config.handleSpeak) { - this.config.handleSpeak(text, options); - } - } + liveText = atomsToSpeak ? speakableText(target, command + " ", atomsToSpeak) : command; + } // aria-live regions are only spoken when it changes; force a change by + // alternately using nonbreaking space or narrow nonbreaking space - return false; -}; + var ariaLiveChangeHack = /\u00a0/.test(target.ariaLiveText.textContent) ? " \u202F " : " \xA0 "; + target.ariaLiveText.textContent = liveText + ariaLiveChangeHack; // this.textarea.setAttribute('aria-label', liveText + ariaLiveChangeHack); +} + +MathField.prototype.undo_ = MathField.prototype.undo; +MathField.prototype.redo_ = MathField.prototype.redo; +MathField.prototype.scrollIntoView_ = MathField.prototype.scrollIntoView; +MathField.prototype.scrollToStart_ = MathField.prototype.scrollToStart; +MathField.prototype.scrollToEnd_ = MathField.prototype.scrollToEnd; +MathField.prototype.insert_ = MathField.prototype.$insert; var _default = { MathField: MathField }; diff --git a/dist/editor/editor-shortcuts.js b/dist/editor/editor-shortcuts.js index 3fdfffa2c..583a36096 100644 --- a/dist/editor/editor-shortcuts.js +++ b/dist/editor/editor-shortcuts.js @@ -10,7 +10,6 @@ var _definitions = _interopRequireDefault(require("../core/definitions.js")); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } /** - * @module editor/shortcuts * @private */ @@ -53,8 +52,8 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { de * - 'extend' keeps the anchor of the selection, but moves the focus (extends, * or shrinks, the range of selected items) * - * @memberof module:editor/shortcuts * @type {Object} + * @private */ var KEYBOARD_SHORTCUTS = { 'Left': 'moveToPreviousChar', @@ -240,10 +239,10 @@ var KEYBOARD_SHORTCUTS = { '!mac:Ctrl-Alt-Up': ['speak', 'parent', { withHighlighting: false }], - 'mac:Ctrl-Meta-Down': ['speak', 'group', { + 'mac:Ctrl-Meta-Down': ['speak', 'all', { withHighlighting: false }], - '!mac:Ctrl-Alt-Down': ['speak', 'group', { + '!mac:Ctrl-Alt-Down': ['speak', 'all', { withHighlighting: false }], 'mac:Ctrl-Meta-Left': ['speak', 'left', { @@ -270,10 +269,10 @@ var KEYBOARD_SHORTCUTS = { '!mac:Ctrl-Alt-Shift-Up': ['speak', 'parent', { withHighlighting: true }], - 'mac:Ctrl-Meta-Shift-Down': ['speak', 'group', { + 'mac:Ctrl-Meta-Shift-Down': ['speak', 'all', { withHighlighting: true }], - '!mac:Ctrl-Alt-Shift-Down': ['speak', 'group', { + '!mac:Ctrl-Alt-Shift-Down': ['speak', 'all', { withHighlighting: true }], 'mac:Ctrl-Meta-Shift-Left': ['speak', 'left', { @@ -305,8 +304,8 @@ var KEYBOARD_SHORTCUTS = { * For example, '\sqrt' -> 'math:Alt-KeyV'. This table provides the reverse * mapping for those more complex commands. It is used when displaying * keyboard shortcuts for specific commands in the popover. - * @memberof module:editor/shortcuts * @type {Object} + * @private */ }; @@ -337,7 +336,7 @@ var REVERSE_KEYBOARD_SHORTCUTS = { * without requiring an escape sequence or command. * * @type {Object.} - * @memberof module:editor/shortcuts + * @private */ }; @@ -359,8 +358,10 @@ var INLINE_SHORTCUTS = { mode: 'text', value: '\\pi ' }, - 'π': '\\pi', - 'Pi': '\\Pi', + 'Pi': { + mode: 'math', + value: '\\Pi' + }, 'theta': '\\theta', 'Theta': '\\Theta', // Letter-like @@ -1043,16 +1044,12 @@ function forCommand(command) { command = commandToString(command); var regex = new RegExp('^' + command.replace('\\', '\\\\').replace('|', '\\|').replace('*', '\\*').replace('$', '\\$').replace('^', '\\^') + '([^*a-zA-Z]|$)'); - - for (var shortcut in KEYBOARD_SHORTCUTS) { - if (KEYBOARD_SHORTCUTS.hasOwnProperty(shortcut)) { - if (regex.test(commandToString(KEYBOARD_SHORTCUTS[shortcut]))) { - var m = shortcut.match(/:([^:]*)$/); - if (m) result.push(m[1]); - } + Object.keys(KEYBOARD_SHORTCUTS).forEach(function (shortcut) { + if (regex.test(commandToString(KEYBOARD_SHORTCUTS[shortcut]))) { + var m = shortcut.match(/:([^:]*)$/); + if (m) result.push(m[1]); } - } - + }); return stringify(result); } /** diff --git a/dist/editor/editor-undo.js b/dist/editor/editor-undo.js index f4bedfc77..60e1f4c58 100644 --- a/dist/editor/editor-undo.js +++ b/dist/editor/editor-undo.js @@ -5,7 +5,9 @@ Object.defineProperty(exports, "__esModule", { }); exports.default = void 0; -function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; } +function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; } + +function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(source, true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(source).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; } function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } @@ -180,6 +182,9 @@ function () { /** * * @param {Object.} options + * @instance + * @memberof UndoManager + * @private */ }, { @@ -196,6 +201,9 @@ function () { * Return an object capturing the state of the content and selection of the * math field. Pass this object to restore() to reset the value of the math * field to this saved value. This does not affect the undo stack. + * @instance + * @memberof UndoManager + * @private */ }, { @@ -210,6 +218,9 @@ function () { * Set the content and selection of the math field to a value previously * captured with save() or stored in the undo stack. * This does not affect the undo stack. + * @instance + * @memberof UndoManager + * @private */ }, { diff --git a/dist/editor/editor-virtualKeyboard.js b/dist/editor/editor-virtualKeyboard.js index b4da4782f..ed7c48665 100644 --- a/dist/editor/editor-virtualKeyboard.js +++ b/dist/editor/editor-virtualKeyboard.js @@ -23,6 +23,12 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { de function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); } +function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; } + +function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(source, true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(source).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; } + +function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } + var KEYBOARDS = { 'numeric': { tooltip: 'keyboard.tooltip.numeric', @@ -841,6 +847,7 @@ function expandLayerMarkup(mf, layer) { * @param {object} mf * @param {string} theme * @result {} A DOM element + * @private */ @@ -918,84 +925,68 @@ function make(mf, theme) { } } - ALT_KEYS = {}; - ALT_KEYS = Object.assign({}, ALT_KEYS_BASE); - - for (var key in ALT_KEYS) { - if (ALT_KEYS.hasOwnProperty(key)) { - ALT_KEYS[key] = ALT_KEYS[key].slice(); - } - } - + ALT_KEYS = _objectSpread({}, ALT_KEYS_BASE); + Object.keys(ALT_KEYS).forEach(function (key) { + ALT_KEYS[key] = ALT_KEYS[key].slice(); + }); var upperAlpha = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; var lowerAlpha = 'abcdefghijklmnopqrstuvwxyz'; var digits = '0123456789'; for (var i = 0; i < 26; i++) { - var _key = upperAlpha[i]; - if (!ALT_KEYS[_key]) ALT_KEYS[_key] = []; - - ALT_KEYS[_key].unshift({ - latex: '\\mathbb{' + _key + '}', + var key = upperAlpha[i]; + if (!ALT_KEYS[key]) ALT_KEYS[key] = []; + ALT_KEYS[key].unshift({ + latex: '\\mathbb{' + key + '}', aside: 'blackboard', - insert: '\\mathbb{' + _key + '}' + insert: '\\mathbb{' + key + '}' }); - - ALT_KEYS[_key].unshift({ - latex: '\\mathbf{' + _key + '}', + ALT_KEYS[key].unshift({ + latex: '\\mathbf{' + key + '}', aside: 'bold', - insert: '\\mathbf{' + _key + '}' + insert: '\\mathbf{' + key + '}' }); - - ALT_KEYS[_key].unshift({ - latex: '\\mathsf{' + _key + '}', + ALT_KEYS[key].unshift({ + latex: '\\mathsf{' + key + '}', aside: 'sans', - insert: '\\mathsf{' + _key + '}' + insert: '\\mathsf{' + key + '}' }); - - ALT_KEYS[_key].unshift({ - latex: '\\mathtt{' + _key + '}', + ALT_KEYS[key].unshift({ + latex: '\\mathtt{' + key + '}', aside: 'monospace', - insert: '\\mathtt{' + _key + '}' + insert: '\\mathtt{' + key + '}' }); - - ALT_KEYS[_key].unshift({ - latex: '\\mathcal{' + _key + '}', + ALT_KEYS[key].unshift({ + latex: '\\mathcal{' + key + '}', aside: 'script', - insert: '\\mathcal{' + _key + '}' + insert: '\\mathcal{' + key + '}' }); - - ALT_KEYS[_key].unshift({ - latex: '\\mathfrak{' + _key + '}', + ALT_KEYS[key].unshift({ + latex: '\\mathfrak{' + key + '}', aside: 'fraktur', - insert: '\\mathfrak{' + _key + '}' + insert: '\\mathfrak{' + key + '}' }); - - ALT_KEYS[_key].unshift({ + ALT_KEYS[key].unshift({ latex: '\\mathbb{' + lowerAlpha[i] + '}', aside: 'blackboard', insert: '\\mathbb{' + lowerAlpha[i] + '}' }); - - ALT_KEYS[_key].unshift({ + ALT_KEYS[key].unshift({ latex: '\\mathbf{' + lowerAlpha[i] + '}', aside: 'bold', insert: '\\mathbf{' + lowerAlpha[i] + '}' }); - - ALT_KEYS[_key].unshift({ + ALT_KEYS[key].unshift({ latex: '\\mathsf{' + lowerAlpha[i] + '}', aside: 'sans', insert: '\\mathsf{' + lowerAlpha[i] + '}' }); - - ALT_KEYS[_key].unshift({ + ALT_KEYS[key].unshift({ latex: '\\mathcal{' + lowerAlpha[i] + '}', aside: 'script', insert: '\\mathcal{' + lowerAlpha[i] + '}' }); - - ALT_KEYS[_key].unshift({ + ALT_KEYS[key].unshift({ latex: '\\mathfrak{' + lowerAlpha[i] + '}', aside: 'fraktur', insert: '\\mathfrak{' + lowerAlpha[i] + '}' @@ -1003,70 +994,70 @@ function make(mf, theme) { } for (var _i = 0; _i <= 26; _i++) { - var _key2 = lowerAlpha[_i]; - if (!ALT_KEYS[_key2]) ALT_KEYS[_key2] = []; + var _key = lowerAlpha[_i]; + if (!ALT_KEYS[_key]) ALT_KEYS[_key] = []; - ALT_KEYS[_key2].unshift({ - latex: '\\mathsf{' + _key2 + '}', + ALT_KEYS[_key].unshift({ + latex: '\\mathsf{' + _key + '}', aside: 'sans', - insert: '\\mathbb{' + _key2 + '}' + insert: '\\mathbb{' + _key + '}' }); - ALT_KEYS[_key2].unshift({ - latex: '\\mathbf{' + _key2 + '}', + ALT_KEYS[_key].unshift({ + latex: '\\mathbf{' + _key + '}', aside: 'bold', - insert: '\\mathbf{' + _key2 + '}' + insert: '\\mathbf{' + _key + '}' }); - ALT_KEYS[_key2].unshift({ - latex: '\\mathtt{' + _key2 + '}', + ALT_KEYS[_key].unshift({ + latex: '\\mathtt{' + _key + '}', aside: 'monospace', - insert: '\\mathtt{' + _key2 + '}' + insert: '\\mathtt{' + _key + '}' }); - ALT_KEYS[_key2].unshift({ - latex: '\\mathfrak{' + _key2 + '}', + ALT_KEYS[_key].unshift({ + latex: '\\mathfrak{' + _key + '}', aside: 'fraktur', - insert: '\\mathfrak{' + _key2 + '}' + insert: '\\mathfrak{' + _key + '}' }); } for (var _i2 = 0; _i2 < 10; _i2++) { - var _key3 = digits[_i2]; - if (!ALT_KEYS[_key3]) ALT_KEYS[_key3] = []; // The mathbb font does not appear to include digits, + var _key2 = digits[_i2]; + if (!ALT_KEYS[_key2]) ALT_KEYS[_key2] = []; // The mathbb font does not appear to include digits, // although it's supposed to. // ALT_KEYS[key].push({ // latex: '\\underset{\\textsf{\\footnotesize blackboard}}{\\mathbb{' + key + '}}', // insert: '\\mathbb{' + key + '}}'}); - ALT_KEYS[_key3].unshift({ - latex: '\\mathbf{' + _key3 + '}', + ALT_KEYS[_key2].unshift({ + latex: '\\mathbf{' + _key2 + '}', aside: 'bold', - insert: '\\mathbf{' + _key3 + '}' + insert: '\\mathbf{' + _key2 + '}' }); - ALT_KEYS[_key3].unshift({ - latex: '\\mathsf{' + _key3 + '}', + ALT_KEYS[_key2].unshift({ + latex: '\\mathsf{' + _key2 + '}', aside: 'sans', - insert: '\\mathsf{' + _key3 + '}' + insert: '\\mathsf{' + _key2 + '}' }); - ALT_KEYS[_key3].unshift({ - latex: '\\mathtt{' + _key3 + '}', + ALT_KEYS[_key2].unshift({ + latex: '\\mathtt{' + _key2 + '}', aside: 'monospace', - insert: '\\mathtt{' + _key3 + '}' + insert: '\\mathtt{' + _key2 + '}' }); - ALT_KEYS[_key3].unshift({ - latex: '\\mathcal{' + _key3 + '}', + ALT_KEYS[_key2].unshift({ + latex: '\\mathcal{' + _key2 + '}', aside: 'script', - insert: '\\mathcal{' + _key3 + '}' + insert: '\\mathcal{' + _key2 + '}' }); - ALT_KEYS[_key3].unshift({ - latex: '\\mathfrak{' + _key3 + '}', + ALT_KEYS[_key2].unshift({ + latex: '\\mathfrak{' + _key2 + '}', aside: 'fraktur', - insert: '\\mathfrak{' + _key3 + '}' + insert: '\\mathfrak{' + _key2 + '}' }); } diff --git a/dist/editor/l10n.js b/dist/editor/l10n.js index a3cb97867..71f49de00 100644 --- a/dist/editor/l10n.js +++ b/dist/editor/l10n.js @@ -6,7 +6,9 @@ Object.defineProperty(exports, "__esModule", { exports.l10n = l10n; exports.default = void 0; -function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; } +function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; } + +function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(source, true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(source).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; } function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } @@ -47,7 +49,7 @@ l10n.plural = function (value, s, options) { return result.split(';')[rule] || result.split(';')[0]; }; -/** +/* * Two forms for this function: * - merge(locale, strings) * Merge a dictionary of keys -> values for the specified locale @@ -62,16 +64,13 @@ l10n.merge = function (locale, strings) { var savedLocale = l10n._locale; l10n.locale = locale; // Load the necessary json file - l10n.strings[locale] = _objectSpread({}, l10n.strings[locale], strings); + l10n.strings[locale] = _objectSpread({}, l10n.strings[locale], {}, strings); l10n.locale = savedLocale; } else if (locale && !strings) { strings = locale; - - for (var l in strings) { - if (strings.hasOwnProperty(l)) { - l10n.merge(l, strings[l]); - } - } + Object.keys(strings).forEach(function (l) { + return l10n.merge(l, strings[l]); + }); } }; // Add getter and setter for the _locale property of l10n @@ -159,6 +158,17 @@ l10n.strings = { "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", diff --git a/dist/mathlive.core.css b/dist/mathlive.core.css index 9576e2df3..0f5c17eba 100644 --- a/dist/mathlive.core.css +++ b/dist/mathlive.core.css @@ -1 +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;-webkit-transform:translateZ(0);transform:translateZ(0)}.ML__base{display:inline-block;position:relative}.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{-webkit-transform:scale(0);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%;cursor:text}.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)} \ 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{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)} \ No newline at end of file diff --git a/dist/mathlive.css b/dist/mathlive.css index e6876c2c0..41a8f1a11 100644 --- a/dist/mathlive.css +++ b/dist/mathlive.css @@ -1 +1 @@ -@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) format("woff");font-weight:700;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Caligraphic;src:url(fonts/KaTeX_Caligraphic-Regular.woff2) format("woff2"),url(fonts/KaTeX_Caligraphic-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Fraktur;src:url(fonts/KaTeX_Fraktur-Bold.woff2) format("woff2"),url(fonts/KaTeX_Fraktur-Bold.woff) format("woff");font-weight:700;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Fraktur;src:url(fonts/KaTeX_Fraktur-Regular.woff2) format("woff2"),url(fonts/KaTeX_Fraktur-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Main;src:url(fonts/KaTeX_Main-BoldItalic.woff2) format("woff2"),url(fonts/KaTeX_Main-BoldItalic.woff) format("woff");font-weight:700;font-style:italic;font-display:"swap"}@font-face{font-family:KaTeX_Main;src:url(fonts/KaTeX_Main-Bold.woff2) format("woff2"),url(fonts/KaTeX_Main-Bold.woff) format("woff");font-weight:700;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Main;src:url(fonts/KaTeX_Main-Italic.woff2) format("woff2"),url(fonts/KaTeX_Main-Italic.woff) format("woff");font-weight:400;font-style:italic;font-display:"swap"}@font-face{font-family:KaTeX_Math;src:url(fonts/KaTeX_Math-BoldItalic.woff2) format("woff2"),url(fonts/KaTeX_Math-BoldItalic.woff) format("woff");font-weight:700;font-style:italic;font-display:"swap"}@font-face{font-family:"KaTeX_SansSerif";src:url(fonts/KaTeX_SansSerif-Bold.woff2) format("woff2"),url(fonts/KaTeX_SansSerif-Bold.woff) format("woff");font-weight:700;font-style:normal;font-display:"swap"}@font-face{font-family:"KaTeX_SansSerif";src:url(fonts/KaTeX_SansSerif-Italic.woff2) format("woff2"),url(fonts/KaTeX_SansSerif-Italic.woff) format("woff");font-weight:400;font-style:italic;font-display:"swap"}@font-face{font-family:"KaTeX_SansSerif";src:url(fonts/KaTeX_SansSerif-Regular.woff2) format("woff2"),url(fonts/KaTeX_SansSerif-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Script;src:url(fonts/KaTeX_Script-Regular.woff2) format("woff2"),url(fonts/KaTeX_Script-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Size1;src:url(fonts/KaTeX_Size1-Regular.woff2) format("woff2"),url(fonts/KaTeX_Size1-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Size2;src:url(fonts/KaTeX_Size2-Regular.woff2) format("woff2"),url(fonts/KaTeX_Size2-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Size3;src:url(fonts/KaTeX_Size3-Regular.woff2) format("woff2"),url(fonts/KaTeX_Size3-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Size4;src:url(fonts/KaTeX_Size4-Regular.woff2) format("woff2"),url(fonts/KaTeX_Size4-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Typewriter;src:url(fonts/KaTeX_Typewriter-Regular.woff2) format("woff2"),url(fonts/KaTeX_Typewriter-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Main;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-face{font-family:KaTeX_Math;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"}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.ML__mathit{font-family:KaTeX_Math;font-style:italic}.ML__mathrm{font-family:KaTeX_Main;font-style:normal}.ML__mathbf{font-family:KaTeX_Main;font-weight:700}.ML__mathbfit{font-family:KaTeX_Math;font-weight:700;font-style:italic}.ML__ams,.ML__bb{font-family:KaTeX_AMS}.ML__cal{font-family:KaTeX_Caligraphic}.ML__frak{font-family:KaTeX_Fraktur}.ML__tt{font-family:KaTeX_Typewriter}.ML__script{font-family:KaTeX_Script}.ML__sans{font-family:KaTeX_SansSerif}.ML__mainit{font-family:KaTeX_Main;font-style:italic}.ML__series_el,.ML__series_ul{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__it{font-style:italic}.ML__shape_ol{-webkit-text-stroke:1px #000;text-stroke:1px #000;color:transparent}.ML__shape_sc{font-variant:small-caps}.ML__shape_sl{font-style:oblique}.ML__emph{color:#bc2612}.ML__emph .ML__emph{color:#0c7f99}.ML__mathlive .highlight{color:#007cb2;background:#edd1b0}.ML__mathlive .reset-textstyle.scriptstyle{font-size:.7em}.ML__mathlive .reset-textstyle.scriptscriptstyle{font-size:.5em}.ML__mathlive .reset-scriptstyle.textstyle{font-size:1.42857em}.ML__mathlive .reset-scriptstyle.scriptscriptstyle{font-size:.71429em}.ML__mathlive .reset-scriptscriptstyle.textstyle{font-size:2em}.ML__mathlive .reset-scriptscriptstyle.scriptstyle{font-size:1.4em}.ML__mathlive .style-wrap{position:relative}.ML__mathlive .vlist{display:inline-block}.ML__mathlive .vlist>span{display:block;height:0;position:relative;line-height:0}.ML__mathlive .vlist>span>span{display:inline-block}.ML__mathlive .msubsup{text-align:left}.ML__mathlive .mfrac>span{text-align:center}.ML__mathlive .mfrac .frac-line{width:100%}.ML__mathlive .mfrac .frac-line:after{content:"";display:block;margin-top:-.04em;border-bottom-style:solid;border-bottom-width:.04em;min-height:.04em}.ML__mathlive .rspace.negativethinspace{margin-right:-.16667em}.ML__mathlive .rspace.thinspace{margin-right:.16667em}.ML__mathlive .rspace.negativemediumspace{margin-right:-.22222em}.ML__mathlive .rspace.mediumspace{margin-right:.22222em}.ML__mathlive .rspace.thickspace{margin-right:.27778em}.ML__mathlive .rspace.sixmuspace{margin-right:.333333em}.ML__mathlive .rspace.eightmuspace{margin-right:.444444em}.ML__mathlive .rspace.enspace{margin-right:.5em}.ML__mathlive .rspace.twelvemuspace{margin-right:.666667em}.ML__mathlive .rspace.quad{margin-right:1em}.ML__mathlive .rspace.qquad{margin-right:2em}.ML__mathlive .mspace{display:inline-block}.ML__mathlive .mspace.negativethinspace{margin-left:-.16667em}.ML__mathlive .mspace.thinspace{width:.16667em}.ML__mathlive .mspace.negativemediumspace{margin-left:-.22222em}.ML__mathlive .mspace.mediumspace{width:.22222em}.ML__mathlive .mspace.thickspace{width:.27778em}.ML__mathlive .mspace.sixmuspace{width:.333333em}.ML__mathlive .mspace.eightmuspace{width:.444444em}.ML__mathlive .mspace.enspace{width:.5em}.ML__mathlive .mspace.twelvemuspace{width:.666667em}.ML__mathlive .mspace.quad{width:1em}.ML__mathlive .mspace.qquad{width:2em}.ML__mathlive .llap,.ML__mathlive .rlap{width:0;position:relative}.ML__mathlive .llap>.inner,.ML__mathlive .rlap>.inner{position:absolute}.ML__mathlive .llap>.fix,.ML__mathlive .rlap>.fix{display:inline-block}.ML__mathlive .llap>.inner{right:0}.ML__mathlive .rlap>.inner{left:0}.ML__mathlive .rule{display:inline-block;border:0 solid;position:relative}.ML__mathlive .overline .overline-line,.ML__mathlive .underline .underline-line{width:100%}.ML__mathlive .overline .overline-line:before,.ML__mathlive .underline .underline-line:before{border-bottom-style:solid;border-bottom-width:.04em;content:"";display:block}.ML__mathlive .overline .overline-line:after,.ML__mathlive .underline .underline-line:after{border-bottom-style:solid;border-bottom-width:.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:.04em;width:100%}.ML__mathlive .sqrt .sqrt-line:before{content:"";display:block;margin-top:-.04em;border-bottom-style:solid;border-bottom-width:.04em;min-height:.5px}.ML__mathlive .sqrt .sqrt-line:after{border-bottom-width:1px;content:" ";display:block;margin-top:-.1em}.ML__mathlive .sqrt>.root{margin-left:.27777778em;margin-right:-.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 .fontsize-ensurer.reset-size1.size9,.ML__mathlive .sizing.reset-size1.size9{font-size:4.14em}.ML__mathlive .fontsize-ensurer.reset-size1.size10,.ML__mathlive .sizing.reset-size1.size10{font-size:4.98em}.ML__mathlive .fontsize-ensurer.reset-size2.size1,.ML__mathlive .sizing.reset-size2.size1{font-size:.71428571em}.ML__mathlive .fontsize-ensurer.reset-size2.size2,.ML__mathlive .sizing.reset-size2.size2{font-size:1em}.ML__mathlive .fontsize-ensurer.reset-size2.size3,.ML__mathlive .sizing.reset-size2.size3{font-size:1.14285714em}.ML__mathlive .fontsize-ensurer.reset-size2.size4,.ML__mathlive .sizing.reset-size2.size4{font-size:1.28571429em}.ML__mathlive .fontsize-ensurer.reset-size2.size5,.ML__mathlive .sizing.reset-size2.size5{font-size:1.42857143em}.ML__mathlive .fontsize-ensurer.reset-size2.size6,.ML__mathlive .sizing.reset-size2.size6{font-size:1.71428571em}.ML__mathlive .fontsize-ensurer.reset-size2.size7,.ML__mathlive .sizing.reset-size2.size7{font-size:2.05714286em}.ML__mathlive .fontsize-ensurer.reset-size2.size8,.ML__mathlive .sizing.reset-size2.size8{font-size:2.47142857em}.ML__mathlive .fontsize-ensurer.reset-size2.size9,.ML__mathlive .sizing.reset-size2.size9{font-size:2.95714286em}.ML__mathlive .fontsize-ensurer.reset-size2.size10,.ML__mathlive .sizing.reset-size2.size10{font-size:3.55714286em}.ML__mathlive .fontsize-ensurer.reset-size3.size1,.ML__mathlive .sizing.reset-size3.size1{font-size:.625em}.ML__mathlive .fontsize-ensurer.reset-size3.size2,.ML__mathlive .sizing.reset-size3.size2{font-size:.875em}.ML__mathlive .fontsize-ensurer.reset-size3.size3,.ML__mathlive .sizing.reset-size3.size3{font-size:1em}.ML__mathlive .fontsize-ensurer.reset-size3.size4,.ML__mathlive .sizing.reset-size3.size4{font-size:1.125em}.ML__mathlive .fontsize-ensurer.reset-size3.size5,.ML__mathlive .sizing.reset-size3.size5{font-size:1.25em}.ML__mathlive .fontsize-ensurer.reset-size3.size6,.ML__mathlive .sizing.reset-size3.size6{font-size:1.5em}.ML__mathlive .fontsize-ensurer.reset-size3.size7,.ML__mathlive .sizing.reset-size3.size7{font-size:1.8em}.ML__mathlive .fontsize-ensurer.reset-size3.size8,.ML__mathlive .sizing.reset-size3.size8{font-size:2.1625em}.ML__mathlive .fontsize-ensurer.reset-size3.size9,.ML__mathlive .sizing.reset-size3.size9{font-size:2.5875em}.ML__mathlive .fontsize-ensurer.reset-size3.size10,.ML__mathlive .sizing.reset-size3.size10{font-size:3.1125em}.ML__mathlive .fontsize-ensurer.reset-size4.size1,.ML__mathlive .sizing.reset-size4.size1{font-size:.55555556em}.ML__mathlive .fontsize-ensurer.reset-size4.size2,.ML__mathlive .sizing.reset-size4.size2{font-size:.77777778em}.ML__mathlive .fontsize-ensurer.reset-size4.size3,.ML__mathlive .sizing.reset-size4.size3{font-size:.88888889em}.ML__mathlive .fontsize-ensurer.reset-size4.size4,.ML__mathlive .sizing.reset-size4.size4{font-size:1em}.ML__mathlive .fontsize-ensurer.reset-size4.size5,.ML__mathlive .sizing.reset-size4.size5{font-size:1.11111111em}.ML__mathlive .fontsize-ensurer.reset-size4.size6,.ML__mathlive .sizing.reset-size4.size6{font-size:1.33333333em}.ML__mathlive .fontsize-ensurer.reset-size4.size7,.ML__mathlive .sizing.reset-size4.size7{font-size:1.6em}.ML__mathlive .fontsize-ensurer.reset-size4.size8,.ML__mathlive .sizing.reset-size4.size8{font-size:1.92222222em}.ML__mathlive .fontsize-ensurer.reset-size4.size9,.ML__mathlive .sizing.reset-size4.size9{font-size:2.3em}.ML__mathlive .fontsize-ensurer.reset-size4.size10,.ML__mathlive .sizing.reset-size4.size10{font-size:2.76666667em}.ML__mathlive .fontsize-ensurer.reset-size5.size1,.ML__mathlive .sizing.reset-size5.size1{font-size:.5em}.ML__mathlive .fontsize-ensurer.reset-size5.size2,.ML__mathlive .sizing.reset-size5.size2{font-size:.7em}.ML__mathlive .fontsize-ensurer.reset-size5.size3,.ML__mathlive .sizing.reset-size5.size3{font-size:.8em}.ML__mathlive .fontsize-ensurer.reset-size5.size4,.ML__mathlive .sizing.reset-size5.size4{font-size:.9em}.ML__mathlive .fontsize-ensurer.reset-size5.size5,.ML__mathlive .sizing.reset-size5.size5{font-size:1em}.ML__mathlive .fontsize-ensurer.reset-size5.size6,.ML__mathlive .sizing.reset-size5.size6{font-size:1.2em}.ML__mathlive .fontsize-ensurer.reset-size5.size7,.ML__mathlive .sizing.reset-size5.size7{font-size:1.44em}.ML__mathlive .fontsize-ensurer.reset-size5.size8,.ML__mathlive .sizing.reset-size5.size8{font-size:1.73em}.ML__mathlive .fontsize-ensurer.reset-size5.size9,.ML__mathlive .sizing.reset-size5.size9{font-size:2.07em}.ML__mathlive .fontsize-ensurer.reset-size5.size10,.ML__mathlive .sizing.reset-size5.size10{font-size:2.49em}.ML__mathlive .fontsize-ensurer.reset-size6.size1,.ML__mathlive .sizing.reset-size6.size1{font-size:.41666667em}.ML__mathlive .fontsize-ensurer.reset-size6.size2,.ML__mathlive .sizing.reset-size6.size2{font-size:.58333333em}.ML__mathlive .fontsize-ensurer.reset-size6.size3,.ML__mathlive .sizing.reset-size6.size3{font-size:.66666667em}.ML__mathlive .fontsize-ensurer.reset-size6.size4,.ML__mathlive .sizing.reset-size6.size4{font-size:.75em}.ML__mathlive .fontsize-ensurer.reset-size6.size5,.ML__mathlive .sizing.reset-size6.size5{font-size:.83333333em}.ML__mathlive .fontsize-ensurer.reset-size6.size6,.ML__mathlive .sizing.reset-size6.size6{font-size:1em}.ML__mathlive .fontsize-ensurer.reset-size6.size7,.ML__mathlive .sizing.reset-size6.size7{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:.34722222em}.ML__mathlive .fontsize-ensurer.reset-size7.size2,.ML__mathlive .sizing.reset-size7.size2{font-size:.48611111em}.ML__mathlive .fontsize-ensurer.reset-size7.size3,.ML__mathlive .sizing.reset-size7.size3{font-size:.55555556em}.ML__mathlive .fontsize-ensurer.reset-size7.size4,.ML__mathlive .sizing.reset-size7.size4{font-size:.625em}.ML__mathlive .fontsize-ensurer.reset-size7.size5,.ML__mathlive .sizing.reset-size7.size5{font-size:.69444444em}.ML__mathlive .fontsize-ensurer.reset-size7.size6,.ML__mathlive .sizing.reset-size7.size6{font-size:.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:.28901734em}.ML__mathlive .fontsize-ensurer.reset-size8.size2,.ML__mathlive .sizing.reset-size8.size2{font-size:.40462428em}.ML__mathlive .fontsize-ensurer.reset-size8.size3,.ML__mathlive .sizing.reset-size8.size3{font-size:.46242775em}.ML__mathlive .fontsize-ensurer.reset-size8.size4,.ML__mathlive .sizing.reset-size8.size4{font-size:.52023121em}.ML__mathlive .fontsize-ensurer.reset-size8.size5,.ML__mathlive .sizing.reset-size8.size5{font-size:.57803468em}.ML__mathlive .fontsize-ensurer.reset-size8.size6,.ML__mathlive .sizing.reset-size8.size6{font-size:.69364162em}.ML__mathlive .fontsize-ensurer.reset-size8.size7,.ML__mathlive .sizing.reset-size8.size7{font-size:.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:.24154589em}.ML__mathlive .fontsize-ensurer.reset-size9.size2,.ML__mathlive .sizing.reset-size9.size2{font-size:.33816425em}.ML__mathlive .fontsize-ensurer.reset-size9.size3,.ML__mathlive .sizing.reset-size9.size3{font-size:.38647343em}.ML__mathlive .fontsize-ensurer.reset-size9.size4,.ML__mathlive .sizing.reset-size9.size4{font-size:.43478261em}.ML__mathlive .fontsize-ensurer.reset-size9.size5,.ML__mathlive .sizing.reset-size9.size5{font-size:.48309179em}.ML__mathlive .fontsize-ensurer.reset-size9.size6,.ML__mathlive .sizing.reset-size9.size6{font-size:.57971014em}.ML__mathlive .fontsize-ensurer.reset-size9.size7,.ML__mathlive .sizing.reset-size9.size7{font-size:.69565217em}.ML__mathlive .fontsize-ensurer.reset-size9.size8,.ML__mathlive .sizing.reset-size9.size8{font-size:.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:.20080321em}.ML__mathlive .fontsize-ensurer.reset-size10.size2,.ML__mathlive .sizing.reset-size10.size2{font-size:.2811245em}.ML__mathlive .fontsize-ensurer.reset-size10.size3,.ML__mathlive .sizing.reset-size10.size3{font-size:.32128514em}.ML__mathlive .fontsize-ensurer.reset-size10.size4,.ML__mathlive .sizing.reset-size10.size4{font-size:.36144578em}.ML__mathlive .fontsize-ensurer.reset-size10.size5,.ML__mathlive .sizing.reset-size10.size5{font-size:.40160643em}.ML__mathlive .fontsize-ensurer.reset-size10.size6,.ML__mathlive .sizing.reset-size10.size6{font-size:.48192771em}.ML__mathlive .fontsize-ensurer.reset-size10.size7,.ML__mathlive .sizing.reset-size10.size7{font-size:.57831325em}.ML__mathlive .fontsize-ensurer.reset-size10.size8,.ML__mathlive .sizing.reset-size10.size8{font-size:.69477912em}.ML__mathlive .fontsize-ensurer.reset-size10.size9,.ML__mathlive .sizing.reset-size10.size9{font-size:.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:.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:.326em}.ML__mathlive .mtable .vertical-separator{display:inline-block;margin:0 -.025em;border-right:.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__smart-fence__close{opacity:.5}.ML__selection{background:var(--highlight-inactive);box-sizing:border-box}.ML__focused .ML__selection{background:var(--highlight)!important;color:var(--on-highlight)}.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:.25em}.ML__command+:not(.ML__command){padding-left:.25em}.ML__keystroke-caption{visibility:hidden;background:var(--secondary);border-color:var(--secondary-border);box-shadow:0 3px 6px rgba(0,0,0,.16),0 3px 6px rgba(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,.14),0 1px 5px 0 rgba(0,0,0,.12),0 3px 1px -2px rgba(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;-webkit-transform:scale(.5);transform:scale(.5);transition:all .15s cubic-bezier(.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;-webkit-transform:scale(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;-webkit-transform:translate(0);transform:translate(0);opacity:0;visibility:hidden;transition:.28s cubic-bezier(0,0,.2,1);transition-property:opacity,-webkit-transform;transition-property:transform,opacity;transition-property:transform,opacity,-webkit-transform;-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,.16),0 3px 6px rgba(0,0,0,.23)}.ML__keyboard.is-visible{-webkit-transform:translateY(-267px);transform:translateY(-267px);opacity:1;visibility:visible;transition-timing-function:cubic-bezier(.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;-webkit-transform:none;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,.25),0 10px 10px rgba(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,.19),0 6px 6px rgba(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,.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:.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:.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{-webkit-transform:translateY(-20px) scale(1.4);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,.25),0 10px 10px rgba(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;-webkit-transform: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,.19),0 6px 6px rgba(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,.19),0 6px 6px rgba(0,0,0,.23);font-size:10px;vertical-align:top;width:19.5px;margin-right:10px;margin-left:10px;-webkit-transform:translateY(-20px) scale(2);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:.5}.ML__placeholder{opacity:.7;padding-left:.5ex;padding-right:.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%,.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%,.5);color:#000;fill:currentColor}div.ML__popover.is-visible{visibility:visible;-webkit-animation:ML__fade-in .15s cubic-bezier(0,0,.2,1);animation:ML__fade-in .15s cubic-bezier(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:.3em;margin-top:.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%,.1)}.ML__popover__command{font-size:1.6rem}.ML__popover__prev-shortcut{height:31px;opacity:.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:.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%,.1)}.ML__popover__next-shortcut{height:34px;opacity:.1;cursor:pointer;margin-left:8px;margin-right:8px;padding-top:2px;padding-bottom:4px}.ML__popover__shortcut{font-size:.8em;margin-top:.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:.7;padding-top:.25em}.ML__popover__note{font-size:.8rem;line-height:1em;padding-left:.5em;padding-right:.5em}.ML__shortcut-join{opacity:.5}.ML__scroller{position:fixed;z-index:1;top:0;height:100vh;width:200px} \ No newline at end of file +@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) format("woff");font-weight:700;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Caligraphic;src:url(fonts/KaTeX_Caligraphic-Regular.woff2) format("woff2"),url(fonts/KaTeX_Caligraphic-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Fraktur;src:url(fonts/KaTeX_Fraktur-Bold.woff2) format("woff2"),url(fonts/KaTeX_Fraktur-Bold.woff) format("woff");font-weight:700;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Fraktur;src:url(fonts/KaTeX_Fraktur-Regular.woff2) format("woff2"),url(fonts/KaTeX_Fraktur-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Main;src:url(fonts/KaTeX_Main-BoldItalic.woff2) format("woff2"),url(fonts/KaTeX_Main-BoldItalic.woff) format("woff");font-weight:700;font-style:italic;font-display:"swap"}@font-face{font-family:KaTeX_Main;src:url(fonts/KaTeX_Main-Bold.woff2) format("woff2"),url(fonts/KaTeX_Main-Bold.woff) format("woff");font-weight:700;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Main;src:url(fonts/KaTeX_Main-Italic.woff2) format("woff2"),url(fonts/KaTeX_Main-Italic.woff) format("woff");font-weight:400;font-style:italic;font-display:"swap"}@font-face{font-family:KaTeX_Math;src:url(fonts/KaTeX_Math-BoldItalic.woff2) format("woff2"),url(fonts/KaTeX_Math-BoldItalic.woff) format("woff");font-weight:700;font-style:italic;font-display:"swap"}@font-face{font-family:"KaTeX_SansSerif";src:url(fonts/KaTeX_SansSerif-Bold.woff2) format("woff2"),url(fonts/KaTeX_SansSerif-Bold.woff) format("woff");font-weight:700;font-style:normal;font-display:"swap"}@font-face{font-family:"KaTeX_SansSerif";src:url(fonts/KaTeX_SansSerif-Italic.woff2) format("woff2"),url(fonts/KaTeX_SansSerif-Italic.woff) format("woff");font-weight:400;font-style:italic;font-display:"swap"}@font-face{font-family:"KaTeX_SansSerif";src:url(fonts/KaTeX_SansSerif-Regular.woff2) format("woff2"),url(fonts/KaTeX_SansSerif-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Script;src:url(fonts/KaTeX_Script-Regular.woff2) format("woff2"),url(fonts/KaTeX_Script-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Size1;src:url(fonts/KaTeX_Size1-Regular.woff2) format("woff2"),url(fonts/KaTeX_Size1-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Size2;src:url(fonts/KaTeX_Size2-Regular.woff2) format("woff2"),url(fonts/KaTeX_Size2-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Size3;src:url(fonts/KaTeX_Size3-Regular.woff2) format("woff2"),url(fonts/KaTeX_Size3-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Size4;src:url(fonts/KaTeX_Size4-Regular.woff2) format("woff2"),url(fonts/KaTeX_Size4-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Typewriter;src:url(fonts/KaTeX_Typewriter-Regular.woff2) format("woff2"),url(fonts/KaTeX_Typewriter-Regular.woff) format("woff");font-weight:400;font-style:normal;font-display:"swap"}@font-face{font-family:KaTeX_Main;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-face{font-family:KaTeX_Math;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"}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.ML__mathit{font-family:KaTeX_Math;font-style:italic}.ML__mathrm{font-family:KaTeX_Main;font-style:normal}.ML__mathbf{font-family:KaTeX_Main;font-weight:700}.ML__mathbfit{font-family:KaTeX_Math;font-weight:700;font-style:italic}.ML__ams,.ML__bb{font-family:KaTeX_AMS}.ML__cal{font-family:KaTeX_Caligraphic}.ML__frak{font-family:KaTeX_Fraktur}.ML__tt{font-family:KaTeX_Typewriter}.ML__script{font-family:KaTeX_Script}.ML__sans{font-family:KaTeX_SansSerif}.ML__mainit{font-family:KaTeX_Main;font-style:italic}.ML__series_el,.ML__series_ul{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__it{font-style:italic}.ML__shape_ol{-webkit-text-stroke:1px #000;text-stroke:1px #000;color:transparent}.ML__shape_sc{font-variant:small-caps}.ML__shape_sl{font-style:oblique}.ML__emph{color:#bc2612}.ML__emph .ML__emph{color:#0c7f99}.ML__mathlive .highlight{color:#007cb2;background:#edd1b0}.ML__mathlive .reset-textstyle.scriptstyle{font-size:.7em}.ML__mathlive .reset-textstyle.scriptscriptstyle{font-size:.5em}.ML__mathlive .reset-scriptstyle.textstyle{font-size:1.42857em}.ML__mathlive .reset-scriptstyle.scriptscriptstyle{font-size:.71429em}.ML__mathlive .reset-scriptscriptstyle.textstyle{font-size:2em}.ML__mathlive .reset-scriptscriptstyle.scriptstyle{font-size:1.4em}.ML__mathlive .style-wrap{position:relative}.ML__mathlive .vlist{display:inline-block}.ML__mathlive .vlist>span{display:block;height:0;position:relative;line-height:0}.ML__mathlive .vlist>span>span{display:inline-block}.ML__mathlive .msubsup{text-align:left}.ML__mathlive .mfrac>span{text-align:center}.ML__mathlive .mfrac .frac-line{width:100%}.ML__mathlive .mfrac .frac-line:after{content:"";display:block;margin-top:-.04em;border-bottom-style:solid;border-bottom-width:.04em;min-height:.04em}.ML__mathlive .rspace.negativethinspace{margin-right:-.16667em}.ML__mathlive .rspace.thinspace{margin-right:.16667em}.ML__mathlive .rspace.negativemediumspace{margin-right:-.22222em}.ML__mathlive .rspace.mediumspace{margin-right:.22222em}.ML__mathlive .rspace.thickspace{margin-right:.27778em}.ML__mathlive .rspace.sixmuspace{margin-right:.333333em}.ML__mathlive .rspace.eightmuspace{margin-right:.444444em}.ML__mathlive .rspace.enspace{margin-right:.5em}.ML__mathlive .rspace.twelvemuspace{margin-right:.666667em}.ML__mathlive .rspace.quad{margin-right:1em}.ML__mathlive .rspace.qquad{margin-right:2em}.ML__mathlive .mspace{display:inline-block}.ML__mathlive .mspace.negativethinspace{margin-left:-.16667em}.ML__mathlive .mspace.thinspace{width:.16667em}.ML__mathlive .mspace.negativemediumspace{margin-left:-.22222em}.ML__mathlive .mspace.mediumspace{width:.22222em}.ML__mathlive .mspace.thickspace{width:.27778em}.ML__mathlive .mspace.sixmuspace{width:.333333em}.ML__mathlive .mspace.eightmuspace{width:.444444em}.ML__mathlive .mspace.enspace{width:.5em}.ML__mathlive .mspace.twelvemuspace{width:.666667em}.ML__mathlive .mspace.quad{width:1em}.ML__mathlive .mspace.qquad{width:2em}.ML__mathlive .llap,.ML__mathlive .rlap{width:0;position:relative}.ML__mathlive .llap>.inner,.ML__mathlive .rlap>.inner{position:absolute}.ML__mathlive .llap>.fix,.ML__mathlive .rlap>.fix{display:inline-block}.ML__mathlive .llap>.inner{right:0}.ML__mathlive .rlap>.inner{left:0}.ML__mathlive .rule{display:inline-block;border:0 solid;position:relative}.ML__mathlive .overline .overline-line,.ML__mathlive .underline .underline-line{width:100%}.ML__mathlive .overline .overline-line:before,.ML__mathlive .underline .underline-line:before{border-bottom-style:solid;border-bottom-width:.04em;content:"";display:block}.ML__mathlive .overline .overline-line:after,.ML__mathlive .underline .underline-line:after{border-bottom-style:solid;border-bottom-width:.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:.04em;width:100%}.ML__mathlive .sqrt .sqrt-line:before{content:"";display:block;margin-top:-.04em;border-bottom-style:solid;border-bottom-width:.04em;min-height:.5px}.ML__mathlive .sqrt .sqrt-line:after{border-bottom-width:1px;content:" ";display:block;margin-top:-.1em}.ML__mathlive .sqrt>.root{margin-left:.27777778em;margin-right:-.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 .fontsize-ensurer.reset-size1.size9,.ML__mathlive .sizing.reset-size1.size9{font-size:4.14em}.ML__mathlive .fontsize-ensurer.reset-size1.size10,.ML__mathlive .sizing.reset-size1.size10{font-size:4.98em}.ML__mathlive .fontsize-ensurer.reset-size2.size1,.ML__mathlive .sizing.reset-size2.size1{font-size:.71428571em}.ML__mathlive .fontsize-ensurer.reset-size2.size2,.ML__mathlive .sizing.reset-size2.size2{font-size:1em}.ML__mathlive .fontsize-ensurer.reset-size2.size3,.ML__mathlive .sizing.reset-size2.size3{font-size:1.14285714em}.ML__mathlive .fontsize-ensurer.reset-size2.size4,.ML__mathlive .sizing.reset-size2.size4{font-size:1.28571429em}.ML__mathlive .fontsize-ensurer.reset-size2.size5,.ML__mathlive .sizing.reset-size2.size5{font-size:1.42857143em}.ML__mathlive .fontsize-ensurer.reset-size2.size6,.ML__mathlive .sizing.reset-size2.size6{font-size:1.71428571em}.ML__mathlive .fontsize-ensurer.reset-size2.size7,.ML__mathlive .sizing.reset-size2.size7{font-size:2.05714286em}.ML__mathlive .fontsize-ensurer.reset-size2.size8,.ML__mathlive .sizing.reset-size2.size8{font-size:2.47142857em}.ML__mathlive .fontsize-ensurer.reset-size2.size9,.ML__mathlive .sizing.reset-size2.size9{font-size:2.95714286em}.ML__mathlive .fontsize-ensurer.reset-size2.size10,.ML__mathlive .sizing.reset-size2.size10{font-size:3.55714286em}.ML__mathlive .fontsize-ensurer.reset-size3.size1,.ML__mathlive .sizing.reset-size3.size1{font-size:.625em}.ML__mathlive .fontsize-ensurer.reset-size3.size2,.ML__mathlive .sizing.reset-size3.size2{font-size:.875em}.ML__mathlive .fontsize-ensurer.reset-size3.size3,.ML__mathlive .sizing.reset-size3.size3{font-size:1em}.ML__mathlive .fontsize-ensurer.reset-size3.size4,.ML__mathlive .sizing.reset-size3.size4{font-size:1.125em}.ML__mathlive .fontsize-ensurer.reset-size3.size5,.ML__mathlive .sizing.reset-size3.size5{font-size:1.25em}.ML__mathlive .fontsize-ensurer.reset-size3.size6,.ML__mathlive .sizing.reset-size3.size6{font-size:1.5em}.ML__mathlive .fontsize-ensurer.reset-size3.size7,.ML__mathlive .sizing.reset-size3.size7{font-size:1.8em}.ML__mathlive .fontsize-ensurer.reset-size3.size8,.ML__mathlive .sizing.reset-size3.size8{font-size:2.1625em}.ML__mathlive .fontsize-ensurer.reset-size3.size9,.ML__mathlive .sizing.reset-size3.size9{font-size:2.5875em}.ML__mathlive .fontsize-ensurer.reset-size3.size10,.ML__mathlive .sizing.reset-size3.size10{font-size:3.1125em}.ML__mathlive .fontsize-ensurer.reset-size4.size1,.ML__mathlive .sizing.reset-size4.size1{font-size:.55555556em}.ML__mathlive .fontsize-ensurer.reset-size4.size2,.ML__mathlive .sizing.reset-size4.size2{font-size:.77777778em}.ML__mathlive .fontsize-ensurer.reset-size4.size3,.ML__mathlive .sizing.reset-size4.size3{font-size:.88888889em}.ML__mathlive .fontsize-ensurer.reset-size4.size4,.ML__mathlive .sizing.reset-size4.size4{font-size:1em}.ML__mathlive .fontsize-ensurer.reset-size4.size5,.ML__mathlive .sizing.reset-size4.size5{font-size:1.11111111em}.ML__mathlive .fontsize-ensurer.reset-size4.size6,.ML__mathlive .sizing.reset-size4.size6{font-size:1.33333333em}.ML__mathlive .fontsize-ensurer.reset-size4.size7,.ML__mathlive .sizing.reset-size4.size7{font-size:1.6em}.ML__mathlive .fontsize-ensurer.reset-size4.size8,.ML__mathlive .sizing.reset-size4.size8{font-size:1.92222222em}.ML__mathlive .fontsize-ensurer.reset-size4.size9,.ML__mathlive .sizing.reset-size4.size9{font-size:2.3em}.ML__mathlive .fontsize-ensurer.reset-size4.size10,.ML__mathlive .sizing.reset-size4.size10{font-size:2.76666667em}.ML__mathlive .fontsize-ensurer.reset-size5.size1,.ML__mathlive .sizing.reset-size5.size1{font-size:.5em}.ML__mathlive .fontsize-ensurer.reset-size5.size2,.ML__mathlive .sizing.reset-size5.size2{font-size:.7em}.ML__mathlive .fontsize-ensurer.reset-size5.size3,.ML__mathlive .sizing.reset-size5.size3{font-size:.8em}.ML__mathlive .fontsize-ensurer.reset-size5.size4,.ML__mathlive .sizing.reset-size5.size4{font-size:.9em}.ML__mathlive .fontsize-ensurer.reset-size5.size5,.ML__mathlive .sizing.reset-size5.size5{font-size:1em}.ML__mathlive .fontsize-ensurer.reset-size5.size6,.ML__mathlive .sizing.reset-size5.size6{font-size:1.2em}.ML__mathlive .fontsize-ensurer.reset-size5.size7,.ML__mathlive .sizing.reset-size5.size7{font-size:1.44em}.ML__mathlive .fontsize-ensurer.reset-size5.size8,.ML__mathlive .sizing.reset-size5.size8{font-size:1.73em}.ML__mathlive .fontsize-ensurer.reset-size5.size9,.ML__mathlive .sizing.reset-size5.size9{font-size:2.07em}.ML__mathlive .fontsize-ensurer.reset-size5.size10,.ML__mathlive .sizing.reset-size5.size10{font-size:2.49em}.ML__mathlive .fontsize-ensurer.reset-size6.size1,.ML__mathlive .sizing.reset-size6.size1{font-size:.41666667em}.ML__mathlive .fontsize-ensurer.reset-size6.size2,.ML__mathlive .sizing.reset-size6.size2{font-size:.58333333em}.ML__mathlive .fontsize-ensurer.reset-size6.size3,.ML__mathlive .sizing.reset-size6.size3{font-size:.66666667em}.ML__mathlive .fontsize-ensurer.reset-size6.size4,.ML__mathlive .sizing.reset-size6.size4{font-size:.75em}.ML__mathlive .fontsize-ensurer.reset-size6.size5,.ML__mathlive .sizing.reset-size6.size5{font-size:.83333333em}.ML__mathlive .fontsize-ensurer.reset-size6.size6,.ML__mathlive .sizing.reset-size6.size6{font-size:1em}.ML__mathlive .fontsize-ensurer.reset-size6.size7,.ML__mathlive .sizing.reset-size6.size7{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:.34722222em}.ML__mathlive .fontsize-ensurer.reset-size7.size2,.ML__mathlive .sizing.reset-size7.size2{font-size:.48611111em}.ML__mathlive .fontsize-ensurer.reset-size7.size3,.ML__mathlive .sizing.reset-size7.size3{font-size:.55555556em}.ML__mathlive .fontsize-ensurer.reset-size7.size4,.ML__mathlive .sizing.reset-size7.size4{font-size:.625em}.ML__mathlive .fontsize-ensurer.reset-size7.size5,.ML__mathlive .sizing.reset-size7.size5{font-size:.69444444em}.ML__mathlive .fontsize-ensurer.reset-size7.size6,.ML__mathlive .sizing.reset-size7.size6{font-size:.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:.28901734em}.ML__mathlive .fontsize-ensurer.reset-size8.size2,.ML__mathlive .sizing.reset-size8.size2{font-size:.40462428em}.ML__mathlive .fontsize-ensurer.reset-size8.size3,.ML__mathlive .sizing.reset-size8.size3{font-size:.46242775em}.ML__mathlive .fontsize-ensurer.reset-size8.size4,.ML__mathlive .sizing.reset-size8.size4{font-size:.52023121em}.ML__mathlive .fontsize-ensurer.reset-size8.size5,.ML__mathlive .sizing.reset-size8.size5{font-size:.57803468em}.ML__mathlive .fontsize-ensurer.reset-size8.size6,.ML__mathlive .sizing.reset-size8.size6{font-size:.69364162em}.ML__mathlive .fontsize-ensurer.reset-size8.size7,.ML__mathlive .sizing.reset-size8.size7{font-size:.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:.24154589em}.ML__mathlive .fontsize-ensurer.reset-size9.size2,.ML__mathlive .sizing.reset-size9.size2{font-size:.33816425em}.ML__mathlive .fontsize-ensurer.reset-size9.size3,.ML__mathlive .sizing.reset-size9.size3{font-size:.38647343em}.ML__mathlive .fontsize-ensurer.reset-size9.size4,.ML__mathlive .sizing.reset-size9.size4{font-size:.43478261em}.ML__mathlive .fontsize-ensurer.reset-size9.size5,.ML__mathlive .sizing.reset-size9.size5{font-size:.48309179em}.ML__mathlive .fontsize-ensurer.reset-size9.size6,.ML__mathlive .sizing.reset-size9.size6{font-size:.57971014em}.ML__mathlive .fontsize-ensurer.reset-size9.size7,.ML__mathlive .sizing.reset-size9.size7{font-size:.69565217em}.ML__mathlive .fontsize-ensurer.reset-size9.size8,.ML__mathlive .sizing.reset-size9.size8{font-size:.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:.20080321em}.ML__mathlive .fontsize-ensurer.reset-size10.size2,.ML__mathlive .sizing.reset-size10.size2{font-size:.2811245em}.ML__mathlive .fontsize-ensurer.reset-size10.size3,.ML__mathlive .sizing.reset-size10.size3{font-size:.32128514em}.ML__mathlive .fontsize-ensurer.reset-size10.size4,.ML__mathlive .sizing.reset-size10.size4{font-size:.36144578em}.ML__mathlive .fontsize-ensurer.reset-size10.size5,.ML__mathlive .sizing.reset-size10.size5{font-size:.40160643em}.ML__mathlive .fontsize-ensurer.reset-size10.size6,.ML__mathlive .sizing.reset-size10.size6{font-size:.48192771em}.ML__mathlive .fontsize-ensurer.reset-size10.size7,.ML__mathlive .sizing.reset-size10.size7{font-size:.57831325em}.ML__mathlive .fontsize-ensurer.reset-size10.size8,.ML__mathlive .sizing.reset-size10.size8{font-size:.69477912em}.ML__mathlive .fontsize-ensurer.reset-size10.size9,.ML__mathlive .sizing.reset-size10.size9{font-size:.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:.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:.326em}.ML__mathlive .mtable .vertical-separator{display:inline-block;margin:0 -.025em;border-right:.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__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:.25em}.ML__command+:not(.ML__command){padding-left:.25em}.ML__smart-fence__close{opacity:.5}.ML__keystroke-caption{visibility:hidden;background:var(--secondary);border-color:var(--secondary-border);box-shadow:0 3px 6px rgba(0,0,0,.16),0 3px 6px rgba(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,.14),0 1px 5px 0 rgba(0,0,0,.12),0 3px 1px -2px rgba(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(.5);transition:all .15s cubic-bezier(.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:.28s cubic-bezier(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,.16),0 3px 6px rgba(0,0,0,.23)}.ML__keyboard.is-visible{transform:translateY(-267px);opacity:1;visibility:visible;transition-timing-function:cubic-bezier(.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,.25),0 10px 10px rgba(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,.19),0 6px 6px rgba(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,.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:.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:.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,.25),0 10px 10px rgba(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,.19),0 6px 6px rgba(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,.19),0 6px 6px rgba(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:.5}.ML__placeholder{opacity:.7;padding-left:.5ex;padding-right:.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%,.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%,.5);color:#000;fill:currentColor}div.ML__popover.is-visible{visibility:visible;-webkit-animation:ML__fade-in .15s cubic-bezier(0,0,.2,1);animation:ML__fade-in .15s cubic-bezier(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:.3em;margin-top:.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%,.1)}.ML__popover__command{font-size:1.6rem}.ML__popover__prev-shortcut{height:31px;opacity:.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:.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%,.1)}.ML__popover__next-shortcut{height:34px;opacity:.1;cursor:pointer;margin-left:8px;margin-right:8px;padding-top:2px;padding-bottom:4px}.ML__popover__shortcut{font-size:.8em;margin-top:.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:.7;padding-top:.25em}.ML__popover__note{font-size:.8rem;line-height:1em;padding-left:.5em;padding-right:.5em}.ML__shortcut-join{opacity:.5}.ML__scroller{position:fixed;z-index:1;top:0;height:100vh;width:200px} \ No newline at end of file diff --git a/dist/mathlive.d.ts b/dist/mathlive.d.ts new file mode 100644 index 000000000..5a4ec7e61 --- /dev/null +++ b/dist/mathlive.d.ts @@ -0,0 +1,760 @@ +/** + * @typedef {function} MathFieldCallback + * @param {MathField} mf + * @return {void} + * @global + */ +declare type MathFieldCallback = (mf: MathField) => void; + +/** + @typedef MathFieldConfig + @type {Object} + @property {string} locale? + @property {object} strings? + @property {number} horizontalSpacingScale? + @property {string} namespace? + @property {function} substituteTextArea? + @property {"math" | "text"} defaultMode? + @property {MathFieldCallback} onFocus? + @property {MathFieldCallback} onBlur? + @property {function} onKeystroke? + @property {function} onAnnounce? + @property {boolean} overrideDefaultInlineShortcuts? + @property {object} inlineShortcuts? + @property {number} inlineShortcutTimeout? + @property {boolean} smartFence? + @property {boolean} smartSuperscript? + @property {number} scriptDepth? + @property {boolean} removeExtraneousParentheses? + @property {boolean} ignoreSpacebarInMathMode? + @property {string} virtualKeyboardToggleGlyph? + @property {"manual" | "onfocus" | "off" } virtualKeyboardMode? + @property {"all" | "numeric" | "roman" | "greek" | "functions" | "command" | string} virtualKeyboards? + @property {"qwerty" | "azerty" | "qwertz" | "dvorak" | "colemak"} virtualKeyboardRomanLayout? + @property {object} customVirtualKeyboardLayers? + @property {object} customVirtualKeyboards? + @property {"material" | "apple" | ""} virtualKeyboardTheme? + @property {boolean} keypressVibration? + @property {string} keypressSound? + @property {string} plonkSound? + @property {"mathlive" | "sre"} textToSpeechRules? + @property {"ssml" | "mac"} textToSpeechMarkup? + @property {object} textToSpeechRulesOptions? + @property {"local" | "amazon"} speechEngine? + @property {string} speechEngineVoice? + @property {string} speechEngineRate? + @property {function} onMoveOutOf? + @property {function} onTabOutOf? + @property {MathFieldCallback} onContentWillChange? + @property {MathFieldCallback} onContentDidChange? + @property {MathFieldCallback} onSelectionWillChange? + @property {MathFieldCallback} onSelectionDidChange? + @property {function} onUndoStateWillChange? + @property {function} onUndoStateDidChange? + @property {function} onModeChange? + @property {function} onVirtualKeyboardToggle? + @property {function} onReadAloudStatus? + @property {function} handleSpeak? + @property {function} handleReadAloud? + @global + */ +declare type MathFieldConfig = { + locale?: string; + strings?: { + [key: string]: string; + }; + horizontalSpacingScale?: number; + namespace?: string; + substituteTextArea?: (...params: any[]) => any; + defaultMode?: "math" | "text"; + onFocus?: MathFieldCallback; + onBlur?: MathFieldCallback; + onKeystroke?: (...params: any[]) => any; + onAnnounce?: (...params: any[]) => any; + overrideDefaultInlineShortcuts?: boolean; + inlineShortcuts?: { + [key: string]: string; + }; + inlineShortcutTimeout?: number; + smartFence?: boolean; + smartSuperscript?: boolean; + scriptDepth?: number; + removeExtraneousParentheses?: boolean; + ignoreSpacebarInMathMode?: boolean; + virtualKeyboardToggleGlyph?: string; + virtualKeyboardMode?: "manual" | "onfocus" | "off"; + virtualKeyboards?: "all" | "numeric" | "roman" | "greek" | "functions" | "command" | string; + virtualKeyboardRomanLayout?: "qwerty" | "azerty" | "qwertz" | "dvorak" | "colemak"; + customVirtualKeyboardLayers?: { + [key: string]: string; + }; + customVirtualKeyboards?: { + [key: string]: object; + }; + virtualKeyboardTheme?: "material" | "apple" | ""; + keypressVibration?: boolean; + keypressSound?: string; + plonkSound?: string; + textToSpeechRules?: "mathlive" | "sre"; + textToSpeechMarkup?: "ssml" | "mac"; + textToSpeechRulesOptions?: any; + speechEngine?: "local" | "amazon"; + speechEngineVoice?: string; + speechEngineRate?: string; + onMoveOutOf?: (...params: any[]) => any; + onTabOutOf?: (...params: any[]) => any; + onContentWillChange?: MathFieldCallback; + onContentDidChange?: MathFieldCallback; + onSelectionWillChange?: MathFieldCallback; + onSelectionDidChange?: MathFieldCallback; + onUndoStateWillChange?: (...params: any[]) => any; + onUndoStateDidChange?: (...params: any[]) => any; + onModeChange?: (...params: any[]) => any; + onVirtualKeyboardToggle?: (...params: any[]) => any; + onReadAloudStatus?: (...params: any[]) => any; + handleSpeak?: (...params: any[]) => any; + handleReadAloud?: (...params: any[]) => any; +}; + +/** + * + * @property {HTMLElement} element - The DOM element this mathfield is attached to. + * @property {Object.} config - A set of key/value pairs that can + * be used to customize the behavior of the mathfield + * @property {string} id - A unique ID identifying this mathfield + * @property {boolean} keystrokeCaptionVisible - True if the keystroke caption + * panel is visible + * @property {boolean} virtualKeyboardVisible - True if the virtual keyboard is + * visible + * @property {string} keystrokeBuffer The last few keystrokes, to look out + * for inline shortcuts + * @property {object[]} keystrokeBufferStates The saved state for each of the + * past keystrokes + * @class MathField + * @global + */ +declare class MathField { + /** + * Revert this math field to its original content. After this method has been + * called, no other methods can be called on the MathField object. To turn the + * element back into a MathField, call `MathLive.makeMathField()` on the + * element again to get a new math field object. + * + * @method MathField#$revertToOriginalContent + */ + $revertToOriginalContent(): void; + /** + * @param {string|string[]} command - A selector, or an array whose first element + * is a selector, and whose subsequent elements are arguments to the selector. + * Note that selectors do not include a final "_". They can be passed either + * in camelCase or kebab-case. So: + * ```javascript + * mf.$perform('selectAll'); + * mf.$perform('select-all'); + * ``` + * both calls are valid and invoke the same selector. + * + * @method MathField#$perform + */ + $perform(command: string | string[]): void; + /** + * Return a textual representation of the mathfield. + * @param {string} [format='latex']. One of + * * `'latex'` + * * `'latex-expanded'` : all macros are recursively expanded to their definition + * * `'spoken'` + * * `'spoken-text'` + * * `'spoken-ssml'` + * * `spoken-ssml-withHighlighting` + * * `'mathML'` + * * `'json'` + * @return {string} + * @method MathField#$text + */ + $text(format?: string): string; + /** + * Return a textual representation of the selection in the mathfield. + * @param {string} [format='latex']. One of + * * `'latex'` + * * `'latex-expanded'` : all macros are recursively expanded to their definition + * * `'spoken'` + * * `'spoken-text'` + * * `'spoken-ssml'` + * * `spoken-ssml-withHighlighting` + * * `'mathML'` + * * `'json'` + * @return {string} + * @method MathField#$selectedText + */ + $selectedText(format?: string): string; + /** + * Return true if the length of the selection is 0, that is, if it is a single + * insertion point. + * @return {boolean} + * @method MathField#$selectionIsCollapsed + */ + $selectionIsCollapsed(): boolean; + /** + * Return the depth of the selection group. If the selection is at the root level, + * returns 0. If the selection is a portion of the numerator of a fraction + * which is at the root level, return 1. Note that in that case, the numerator + * would be the "selection group". + * @return {number} + * @method MathField#$selectionDepth + */ + $selectionDepth(): number; + /** + * Return true if the selection starts at the beginning of the selection group. + * @return {boolean} + * @method MathField#$selectionAtStart + */ + $selectionAtStart(): boolean; + /** + * Return true if the selection extends to the end of the selection group. + * @return {boolean} + * @method MathField#$selectionAtEnd + */ + $selectionAtEnd(): boolean; + /** + * If `text` is not empty, sets the content of the mathfield to the + * text interpreted as a LaTeX expression. + * If `text` is empty (or omitted), return the content of the mahtfield as a + * LaTeX expression. + * @param {string} text + * + * @param {Object.} options + * @param {boolean} options.suppressChangeNotifications - If true, the + * handlers for the contentWillChange and contentDidChange notifications will + * not be invoked. Default `false`. + * + * @return {string} + * @method MathField#$latex + */ + $latex(text: string, options: { + suppressChangeNotifications: boolean; + }): string; + /** + * Return the DOM element associated with this mathfield. + * + * Note that `this.$el().mathfield = this` + * @return {HTMLElement} + * @method MathField#$el + */ + $el(): HTMLElement; + /** + * This method can be invoked as a selector with {@linkcode MathField#$perform $perform("insert")} + * or called explicitly. + * + * It will insert the specified block of text at the current insertion point, + * according to the insertion mode specified. + * + * After the insertion, the selection will be set according to the `selectionMode`. + * @param {string} s - The text to be inserted + * + * @param {Object.} [options={}] + * + * @param {'placeholder' | 'after' | 'before' | 'item'} options.selectionMode - Describes where the selection + * will be after the insertion: + * * `'placeholder'`: the selection will be the first available placeholder + * in the item that has been inserted (default) + * * `'after'`: the selection will be an insertion point after the item that + * has been inserted, + * * `'before'`: the selection will be an insertion point before + * the item that has been inserted + * * `'item'`: the item that was inserted will be selected + * + * @param {'auto' | 'latex'} options.format - The format of the string `s`: + * * `'auto'`: the string is interpreted as a latex fragment or command) + * (default) + * * `'latex'`: the string is interpreted strictly as a latex fragment + * + * @param {boolean} options.focus - If true, the mathfield will be focused after + * the insertion + * + * @param {boolean} options.feedback - If true, provide audio and haptic feedback + * + * @param {'text' | 'math' | ''} options.mode - 'text' or 'math'. If empty, the current mode + * is used (default) + * + * @param {boolean} options.resetStyle - If true, the style after the insertion + * is the same as the style before (if false, the style after the + * insertion is the style of the last inserted atom). + * + * @method MathField#$insert + */ + $insert(s: string, options?: { + selectionMode: 'placeholder' | 'after' | 'before' | 'item'; + format: 'auto' | 'latex'; + focus: boolean; + feedback: boolean; + mode: 'text' | 'math' | ''; + resetStyle: boolean; + }): void; + /** + * Apply a style (color, bold, italic, etc...). + * + * If there is a selection, the style is applied to the selection + * + * If the selection already has this style, remove it. If the selection + * has the style partially applied (i.e. only some sections), remove it from + * those sections, and apply it to the entire selection. + * + * If there is no selection, the style will apply to the next character typed. + * + * @param {object} style an object with the following properties. All the + * properties are optional, but they can be combined. + * + * @param {string} [style.mode=''] - Either `'math'`, `'text'` or '`command`' + * @param {string} [style.color=''] - The text/fill color, as a CSS RGB value or + * a string for some 'well-known' colors, e.g. 'red', '#f00', etc... + * + * @param {string} [style.backgroundColor=''] - The background color. + * + * @param {string} [style.fontFamily=''] - The font family used to render text. + * This value can the name of a locally available font, or a CSS font stack, e.g. + * "Avenir", "Georgia, serif", etc... + * This can also be one of the following TeX-specific values: + * - 'cmr': Computer Modern Roman, serif + * - 'cmss': Computer Modern Sans-serif, latin characters only + * - 'cmtt': Typewriter, slab, latin characters only + * - 'cal': Calligraphic style, uppercase latin letters and digits only + * - 'frak': Fraktur, gothic, uppercase, lowercase and digits + * - 'bb': Blackboard bold, uppercase only + * - 'scr': Script style, uppercase only + * + * @param {string} [style.series=''] - The font 'series', i.e. weight and + * stretch. The following values can be combined, for example: "ebc": extra-bold, + * condensed. Aside from 'b', these attributes may not have visible effect if the + * font family does not support this attribute: + * - 'ul' ultra-light weight + * - 'el': extra-light + * - 'l': light + * - 'sl': semi-light + * - 'm': medium (default) + * - 'sb': semi-bold + * - 'b': bold + * - 'eb': extra-bold + * - 'ub': ultra-bold + * - 'uc': ultra-condensed + * - 'ec': extra-condensed + * - 'c': condensed + * - 'sc': semi-condensed + * - 'n': normal (default) + * - 'sx': semi-expanded + * - 'x': expanded + * - 'ex': extra-expanded + * - 'ux': ultra-expanded + * + * @param {string} [style.shape=''] - The font 'shape', i.e. italic. + * - 'auto': italic or upright, depending on mode and letter (single letters are + * italic in math mode) + * - 'up': upright + * - 'it': italic + * - 'sl': slanted or oblique (often the same as italic) + * - 'sc': small caps + * - 'ol': outline + * + * @param {string} [style.size=''] - The font size: 'size1'...'size10' + * 'size5' is the default size + * @method MathField#$applyStyle + * + */ + $applyStyle(style: { + mode?: string; + color?: string; + backgroundColor?: string; + fontFamily?: string; + series?: string; + shape?: string; + size?: string; + }): void; + /** + * @param {string} keys - A string representation of a key combination. + * + * For example `'Alt-KeyU'`. + * + * See [W3C UIEvents](https://www.w3.org/TR/uievents/#code-virtual-keyboards) + * @param {Event} evt + * @return {boolean} + * @method MathField#$keystroke + */ + $keystroke(keys: string, evt: Event): boolean; + /** + * Simulate a user typing the keys indicated by text. + * @param {string} text - A sequence of one or more characters. + * @method MathField#$typedText + */ + $typedText(text: string): void; + /** + * + * Update the configuration options for this mathfield. + * + * @param {MathFieldConfig} [config={}] See {@tutorial CONFIG} for details. + * + * @method MathField#$setConfig + */ + $setConfig(config?: MathFieldConfig): void; + /** + * + * Speak some part of the expression, either with or without synchronized highlighting. + * + * @param {string} amount (all, selection, left, right, group, parent) + * @param {object} speakOptions + * @param {boolean} speakOptions.withHighlighting - If true, synchronized highlighting of speech will happen (if possible). Default is false. + * + * @method MathField#speak_ + */ + speak_(amount: string, speakOptions: { + withHighlighting: boolean; + }): void; +} + +/** + * Return an array of potential shortcuts + * @param {string} s + * @param {object} config + * @return {string[]} + */ +declare function startsWithString(s: string, config: any): string[]; + +/** + * + * @param {string} mode + * @param {object[]} siblings atoms preceding this potential shortcut + * @param {string} shortcut + */ +declare function validateShortcut(mode: string, siblings: object[], shortcut: string): void; + +/** + * + * This modules exports the MathLive entry points. + * + * @module mathlive + * @example + * // To invoke the functions in this module, import the MathLive module. + * + * import MathLive from 'dist/mathlive.mjs'; + * + * const markup = MathLive.latexToMarkup('e^{i\\pi}+1=0'); + * + */ +declare module "mathlive" { + /** + * Convert a LaTeX string to a string of HTML markup. + * + * @param {string} text A string of valid LaTeX. It does not have to start + * with a mode token such as `$$` or `\(`. + * + * @param {string} mathstyle If `'displaystyle'` the "display" mode of TeX + * is used to typeset the formula, which is most appropriate for formulas that are + * displayed in a standalone block. If `'textstyle'` is used, the "text" mode + * of TeX is used, which is most appropriate when displaying math "inline" + * with other text (on the same line). + * + * @param {string} [format='html'] For debugging purposes, this function + * can also return a text representation of internal data structures + * used to construct the markup. Valid values include `'mathlist'` and `'span'` + * + * @return {string} + * @function module:mathlive#latexToMarkup + */ + function latexToMarkup(text: string, mathstyle: string, format?: string): string; + /** + * Convert a DOM element into an editable math field. + * + * After the DOM element has been created, the value `element.mathfield` will + * return a reference to the mathfield object. This value is also returned + * by `makeMathField` + * + * @param {HTMLElement|string} element A DOM element, for example as obtained + * by `document.getElementById()`, or the ID of a DOM element as a string. + * + * @param {MathFieldConfig} [config={}] See {@tutorial CONFIG} for details. + * + * + * @return {MathField} + * + * Given the HTML markup: + * ```html + * $f(x)=sin(x)$ + * ``` + * The following code will turn the span into an editable mathfield. + * ``` + * import MathLive from 'dist/mathlive.mjs'; + * MathLive.makeMathField('equation'); + * ``` + * + * @function module:mathlive#makeMathField + */ + function makeMathField(element: HTMLElement | string, config?: MathFieldConfig): MathField; + /** + * Convert a LaTeX string to a string of MathML markup. + * + * @param {string} latex A string of valid LaTeX. It does not have to start + * with a mode token such as a `$$` or `\(`. + * @param {object} options + * @param {boolean} [options.generateID=false] - If true, add an `extid` attribute + * to the MathML nodes with a value matching the `atomID`. + * @return {string} + * @function module:mathlive#latexToMathML + */ + function latexToMathML(latex: string, options: { + generateID?: boolean; + }): string; + /** + * Convert a LaTeX string to an Abstract Syntax Tree + * + * **See:** {@tutorial MASTON} + * + * @param {string} latex A string of valid LaTeX. It does not have to start + * with a mode token such as a `$$` or `\(`. + * + * @return {object} The Abstract Syntax Tree as a JavaScript object. + * @function module:mathlive#latexToAST + */ + function latexToAST(latex: string): any; + /** + * Convert a LaTeX string to a textual representation ready to be spoken + * + * @param {string} latex A string of valid LaTeX. It does not have to start + * with a mode token such as a `$$` or `\(`. + * + * @param {Object.} options - + * + * @param {string} [options.textToSpeechRules='mathlive'] Specify which + * set of text to speech rules to use. + * + * A value of `mathlive` indicates that + * the simple rules built into MathLive should be used. A value of `sre` + * indicates that the Speech Rule Engine from Volker Sorge should be used. + * Note that SRE is not included or loaded by MathLive and for this option to + * work SRE should be loaded separately. + * + * @param {string} [options.textToSpeechMarkup=''] The markup syntax to use + * for the output of conversion to spoken text. + * + * Possible values are `ssml` for + * the SSML markup or `mac` for the MacOS markup (e.g. `[[ltr]]`) + * + * @param {Object.} [options.textToSpeechRulesOptions={}] A set of + * key/value pairs that can be used to configure the speech rule engine. + * + * Which options are available depends on the speech rule engine in use. There + * are no options available with MathLive's built-in engine. The options for + * the SRE engine are documented [here]{@link:https://github.com/zorkow/speech-rule-engine} + * @return {string} The spoken representation of the input LaTeX. + * @example + * console.log(MathLive.latexToSpeakableText('\\frac{1}{2}')); + * // ➡︎'half' + * @function module:mathlive#latexToSpeakableText + */ + function latexToSpeakableText(latex: string, options: { + textToSpeechRules?: string; + textToSpeechMarkup?: string; + textToSpeechRulesOptions?: { + [key: string]: any; + }; + }): string; + /** + * Highlight the span corresponding to the specified atomID + * This is used for TTS with synchronized highlighting (read aloud) + * + * @param {string} atomID + * + */ + function highlightAtomID(atomID: string): void; + /** + * Return the status of a Read Aloud operation (reading with synchronized + * highlighting). + * + * Possible values include: + * - `ready` + * - `playing` + * - `paused` + * - `unavailable` + * + * **See** {@linkcode module:editor-mathfield#speak speak} + * @return {string} + * @function module:mathlive#readAloudStatus + */ + function readAloudStatus(): string; + /** + * If a Read Aloud operation is in progress, stop it. + * + * **See** {@linkcode module:editor/mathfield#speak speak} + * @function module:mathlive#pauseReadAloud + */ + function pauseReadAloud(): void; + /** + * If a Read Aloud operation is paused, resume it + * + * **See** {@linkcode module:editor-mathfield#speak speak} + * @function module:mathlive#resumeReadAloud + */ + function resumeReadAloud(): void; + /** + * If a Read Aloud operation is in progress, read from a specified token + * + * **See** {@linkcode module:editor-mathfield#speak speak} + * + * @param {string} token + * @param {number} [count] + * @function module:mathlive#playReadAloud + */ + function playReadAloud(token: string, count?: number): void; + /** + * Transform all the elements in the document body that contain LaTeX code + * into typeset math. + * + * **Note:** This is a very expensive call, as it needs to parse the entire + * DOM tree to determine which elements need to be processed. In most cases + * this should only be called once per document, once the DOM has been loaded. + * To render a specific element, use {@linkcode module:mathlive#renderMathInElement renderMathInElement()} + * + * **See:** {@tutorial USAGE_GUIDE} + * + * @param {object} [options={}] See {@linkcode module:mathlive#renderMathInElement renderMathInElement()} + * for details + * @example + * import MathLive from 'dist/mathlive.mjs'; + * document.addEventListener("load", () => { + * MathLive.renderMathInDocument(); + * }); + * + */ + function renderMathInDocument(options?: { + [key: string]: any; + }): void; + /** + * Transform all the children of `element`, recursively, that contain LaTeX code + * into typeset math. + * + * **See:** {@tutorial USAGE_GUIDE} + * + * @param {HTMLElement|string} element An HTML DOM element, or a string containing + * the ID of an element. + * @param {object} [options={}] + * + * @param {string} [options.namespace=''] - Namespace that is added to `data-` + * attributes to avoid collisions with other libraries. + * + * It is empty by default. + * + * The namespace should be a string of lowercase letters. + * + * @param {object[]} [options.macros={}] - Custom LaTeX macros + * + * @param {string[]} [options.skipTags=['noscript', 'style', 'textarea', 'pre', 'code', 'annotation', 'annotation-xml'] ] + * an array of tag names whose content will + * not be scanned for delimiters (unless their class matches the `processClass` + * pattern below. + * + * @param {string} [options.ignoreClass='tex2jax_ignore'] a string used as a + * regular expression of class names of elements whose content will not be + * scanned for delimiters + + * @param {string} [options.processClass='tex2jax_process'] a string used as a + * regular expression of class names of elements whose content **will** be + * scanned for delimiters, even if their tag name or parent class name would + * have prevented them from doing so. + * + * @param {string} [options.processScriptType="math/tex"] ` - - - - - - - - - - - - - - -
Fork me on GitHub
- - -
- - - - - - -
- -
- -

MathAtom

- - - - - - - -
- -
- -

- MathAtom -

- - -
- -
-
- - -
- - - -

new MathAtom(mode: string, type: string, body: string | MathAtom[], style?: [string]:any): MathAtomprivate

- - - - - -
-

An atom is an object encapsulating an elementary mathematical unit, -independent of its graphical representation.

-

It keeps track of the content, while the dimensions, position and style -are tracked by Span objects which are created by the decompose() functions.

-
- - - - - - - - - - - - -
- - - -
- - mode - - - - - : -string - - - - - - - - - - -
- - - -
- - type - - - - - : -string - - - - - - - - - - -
- - - -
- - body - - - - - : -string -| - -MathAtom[] - - - - - - - - - - -
- - - -
- - style - - - - - : -[string]:any - - - - - - - - - - - - - - - - - = {} - - - -

-

A set of additional properties to append to -the atom

-

- - -
- - -
- - - - - - → - - - - - : -MathAtom - - -    - - - - - - - - - - - -
Properties
- - - - - - -
- - mode - - - - - : -string - - - - - - - - - -

'display', 'command', etc...

- - -
- - - -
- - type - - - - - : -string - - - - - - - - - -

Type can be one of:

-
    -
  • mord: ordinary symbol, e.g. x, \alpha
    • -
  • textord: ordinary characters
    • -
  • mop: operators, including special functions, \sin, \sum, \cap.
    • -
  • mbin: binary operator: +, *, etc...
    • -
  • mrel: relational operator: =, \ne, etc...
    • -
  • mpunct: punctuation: ,, :, etc...
    • -
  • mopen: opening fence: (, \langle, etc...
    • -
  • mclose: closing fence: ), \rangle, etc...
    • -
  • minner: special layout cases, overlap, \left...\right
    • -
-

In addition to these basic types, which correspond to the TeX atom types, -some atoms represent more complex compounds, including:

-
    -
  • space and spacing: blank space between atoms
    • -
  • mathstyle: to change the math style used: display or text. -The layout rules are different for each, the latter being more compact and -intended to be incorporated with surrounding non-math text.
    • -
  • root: a group, which has no parent (only one per formula)
    • -
  • group: a simple group of atoms, for example from a {...}
    • -
  • sizing: set the size of the font used
    • -
  • rule: draw a line, for the \rule command
    • -
  • line: used by \overline and \underline commands
    • -
  • box: a border drawn around an expression and change its background color
    • -
  • overlap: display a symbol over another
    • -
  • overunder: displays an annotation above or below a symbol
    • -
  • array: a group, which has children arranged in rows. Used -by environments such as matrix, cases, etc...
    • -
  • genfrac: a generalized fraction: a numerator and denominator, separated -by an optional line, and surrounded by optional fences
    • -
  • surd: a surd, aka root
    • -
  • leftright: used by the \left and \right commands
    • -
  • delim: some delimiter
    • -
  • sizeddelim: a delimiter that can grow
    • -
-

The following types are used by the editor:

-
    -
  • command indicate a command being entered. The text is displayed in -blue in the editor.
    • -
  • error: indicate a command that is unknown, for example \xyzy. The text -is displayed with a wavy red underline in the editor.
    • -
  • placeholder: indicate a temporary item. Placeholders are displayed -as a dashed square in the editor.
    • -
  • first: a special, empty, atom put as the first atom in math lists in -order to be able to position the caret before the first element. Aside from -the caret, they display nothing.
    • -
- - -
- - - -
- - body - - - - - : -string -| - -MathAtom[] - - - - - - - - - - - - -
- - - -
- - superscript - - - - - : -MathAtom[] - - - - - - - - - - - - -
- - - -
- - subscript - - - - - : -MathAtom[] - - - - - - - - - - - - -
- - - -
- - numer - - - - - : -MathAtom[] - - - - - - - - - - - - -
- - - -
- - denom - - - - - : -MathAtom[] - - - - - - - - - - - - -
- - - -
- - captureSelection - - - - - : -boolean - - - - - - - - - -

if true, this atom does not let its -children be selected. Used by the \enclose annotations, for example.

- - -
- - - -
- - skipBoundary - - - - - : -boolean - - - - - - - - - -

if true, when the caret reaches the -first position in this element's body, it automatically moves to the -outside of the element. Conversely, when the caret reaches the position -right after this element, it automatically moves to the last position -inside this element.

- - -
- - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - -
- - - - - - - - - - - - - - -

Methods

- - - -
- - - -

toSpeakableText(atoms?: MathAtom[], options?: [string]:any)static

- - - - - - - - - - - - - - - - -
- - - -
- - atoms - - - - - : -MathAtom[] - - - - - - - - - - - - - - - - - - -

-

The atoms to represent as speakable text. -If omitted, this is used.

-

- - -
- - - -
- - options - - - - - : -[string]:any - - - - - - - - - - - - - - - - - - -
- - -
- - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - -
- - - -

bind(context: Context, span: Span)

- - - - - -
-

Add an ID attribute to both the span and this atom so that the atom -can be retrieved from the span later on (e.g. when the span is clicked on)

-
- - - - - - - - - - - - -
- - - -
- - context - - - - - : -Context - - - - - - - - - - -
- - - -
- - span - - - - - : -Span - - - - - - - - - - -
- - -
- - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - -
- - - -

decompose(context: Context, phantomBase?: Span[]): Span[]

- - - - - -
-

Return a representation of this, but decomposed in an array of Spans

-
- - - - - - - - - - - - -
- - - -
- - context - - - - - : -Context - - - - - - - - - - -

-

Font variant, size, color, etc...

-

- - -
- - - -
- - phantomBase - - - - - : -Span[] - - - - - - - - - - - - - - - - - = null - - - -

-

If not null, the spans to use to -calculate the placement of the supsub

-

- - -
- - -
- - - - - - → - - - - - : -Span[] - - -    - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - -
- - - -

decomposeGenfrac()

- - - - - -
-

Gengrac -- Generalized fraction

-

Decompose fractions, binomials, and in general anything made -of two expressions on top of each other, optionally separated by a bar, -and optionally surrounded by fences (parentheses, brackets, etc...)

-

Depending on the type of fraction the mathstyle is either -display math or inline math (which is indicated by 'textstyle'). This value can -also be set to 'auto', which indicates it should use the current mathstyle

-
- - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - -
- - - -

decomposeLeftright()

- - - - - -
-

\left....\right

-

Note that we can encounter malformed \left...\right, for example -a \left without a matching \right or vice versa. In that case, the -leftDelim (resp. rightDelim) will be undefined. We still need to handle -those cases.

-
- - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - -
- - - -

decomposeLine()

- - - - - -
-

\overline and \underline

-
- - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - -
- - - -

decomposeRule()

- - - - - -
-

\rule

-
- - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - -
- - - -

filter(): MathAtom[]

- - - - - -
-

Iterate over all the child atoms of this atom, this included, -and return an array of all the atoms for which the predicate callback -is true.

-
- - - - - - - - - - - - - - - → - - - - - : -MathAtom[] - - -    - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - -
- - - -

makeSpan(context: Context, body: string | Span[]): Span

- - - - - -
-

Create a span with the specified body and with a class attribute -equal to the type ('mbin', 'inner', 'spacing', etc...)

-
- - - - - - - - - - - - -
- - - -
- - context - - - - - : -Context - - - - - - - - - - -
- - - -
- - body - - - - - : -string -| - -Span[] - - - - - - - - - - -
- - -
- - - - - - → - - - - - : -Span - - -    - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - -
- - - -

toAST(): object

- - - - - -
-

Return an AST representation of a single atom

-
- - - - - - - - - - - - - - - → - - - - - : -object - - -    - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - -
- - - -

toLatex(expandMacro: boolean): string

- - - - - -
-

Return a LaTeX representation of the atom.

-
- - - - - - - - - - - - -
- - - -
- - expandMacro - - - - - : -boolean - - - - - - - - - - -

-

If true, macros are fully expanded. This will -no longer round-trip.

-

- - -
- - -
- - - - - - → - - - - - : -string - - -    - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
- - - - - - - -
- -
- - - - -
- - - - - - - - - - - - - \ No newline at end of file diff --git a/docs/MathField.html b/docs/MathField.html index fe26f04ce..3b31be55d 100644 --- a/docs/MathField.html +++ b/docs/MathField.html @@ -40,7 +40,7 @@ @@ -85,28 +85,12 @@

-

new MathField(element: Element, config: object)

+

new MathField()

-
-

To create a mathfield, you would typically use MathLive.makeMathField() -instead of invoking directly this constructor.

-

Note

-
    -
  • Method names that begin with $ are public.
    • -
  • Method names that begin with an underbar _ are private and meant -to be used only by the implementation of the class.
    • -
  • Method names that end with an underbar _ are selectors. They can -be invoked by calling MathField.$perform(). Note -that the selector name does not include the underbar.
    • -
-

For example:

-
   mf.$perform('selectAll');
-
-
@@ -114,16 +98,23 @@

new MathField(elementParameters

--> -
-
+ +
Properties
+ + + + + + +
element @@ -131,7 +122,7 @@

new MathField(element : -Element +HTMLElement @@ -141,18 +132,14 @@

new MathField(element -

The DOM element that this mathfield is attached to. -Note that element.mathfield is this object.

-

- - +

The DOM element this mathfield is attached to.

+ +

-
+
config @@ -160,7 +147,7 @@

new MathField(element : -object +[string]:any @@ -170,40 +157,48 @@

new MathField(element -

See Configuration options for details

-

- - +

A set of key/value pairs that can +be used to customize the behavior of the mathfield

+ +

-
- +
+ + id + - + + + : +string - + + -
Properties
+ - + +

A unique ID identifying this mathfield

+ + +
- element + keystrokeCaptionVisible : -Element +boolean @@ -213,7 +208,8 @@
Properties
-

The DOM element this mathfield is attached to.

+

True if the keystroke caption +panel is visible
@@ -222,13 +218,13 @@
Properties
- config + virtualKeyboardVisible : -[string]:any +boolean @@ -238,8 +234,8 @@
Properties
-

A set of key/value pairs that can -be used to customize the behavior of the mathfield

+

True if the virtual keyboard is +visible
@@ -248,7 +244,7 @@
Properties
- id + keystrokeBuffer @@ -264,7 +260,8 @@
Properties
-

A unique ID identifying this mathfield

+

The last few keystrokes, to look out +for inline shortcuts
@@ -273,13 +270,13 @@
Properties
- keystrokeCaptionVisible + keystrokeBufferStates : -boolean +object[] @@ -289,43 +286,427 @@
Properties
-

True if the keystroke caption -panel is visible

+

The saved state for each of the +past keystrokes
-
+ + + +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ + + + + + + + + + + + + + + + +
+ + +
+ + + + + + + + + + + + + + +

Methods

+ + - virtualKeyboardVisible +
+ + + +

$applyStyle(style: object)

+ + + + + +
+

Apply a style (color, bold, italic, etc...).

+

If there is a selection, the style is applied to the selection

+

If the selection already has this style, remove it. If the selection +has the style partially applied (i.e. only some sections), remove it from +those sections, and apply it to the entire selection.

+

If there is no selection, the style will apply to the next character typed.

+
+ + + + + + + + + + + + +
+ + + +
+ + style : -boolean +object + + + + + + + + + + +

+

an object with the following properties. All the +properties are optional, but they can be combined.

+

+ +
+ + + +
+ + style.mode + + + + + : +string + + + + + + + + + + + = '' + + + +

+

Either 'math', 'text' or 'command'

+

+ + +
+ + + +
+ + style.color + + + + + : +string + + + + + + + + + + + + + + + + = '' + + + +

+

The text/fill color, as a CSS RGB value or +a string for some 'well-known' colors, e.g. 'red', '#f00', etc...

+

+ + +
+ + + +
+ + style.backgroundColor + + + + + : +string + + + + + + + + + + + + + + + + + = '' + + + +

+

The background color.

+

+ + +
+ + + +
+ + style.fontFamily + + + + + : +string + + + + + + + + + + + + + + + + + = '' + + + +

+

The font family used to render text. +This value can the name of a locally available font, or a CSS font stack, e.g. +"Avenir", "Georgia, serif", etc... +This can also be one of the following TeX-specific values:

+
    +
  • 'cmr': Computer Modern Roman, serif
    • +
  • 'cmss': Computer Modern Sans-serif, latin characters only
    • +
  • 'cmtt': Typewriter, slab, latin characters only
    • +
  • 'cal': Calligraphic style, uppercase latin letters and digits only
    • +
  • 'frak': Fraktur, gothic, uppercase, lowercase and digits
    • +
  • 'bb': Blackboard bold, uppercase only
    • +
  • 'scr': Script style, uppercase only
    • +
+

+ + +
+ + + +
+ + style.series + + + + + : +string + + + + + + + + + + + + + + + + + = '' + + + +

+

The font 'series', i.e. weight and +stretch. The following values can be combined, for example: "ebc": extra-bold, +condensed. Aside from 'b', these attributes may not have visible effect if the +font family does not support this attribute:

+
    +
  • 'ul' ultra-light weight
    • +
  • 'el': extra-light
    • +
  • 'l': light
    • +
  • 'sl': semi-light
    • +
  • 'm': medium (default)
    • +
  • 'sb': semi-bold
    • +
  • 'b': bold
    • +
  • 'eb': extra-bold
    • +
  • 'ub': ultra-bold
    • +
  • 'uc': ultra-condensed
    • +
  • 'ec': extra-condensed
    • +
  • 'c': condensed
    • +
  • 'sc': semi-condensed
    • +
  • 'n': normal (default)
    • +
  • 'sx': semi-expanded
    • +
  • 'x': expanded
    • +
  • 'ex': extra-expanded
    • +
  • 'ux': ultra-expanded
    • +
+

+ + +
+ + + +
+ + style.shape + + + + + : +string + + + + + + + + + + + + + + + + + = '' + + + +

+

The font 'shape', i.e. italic.

+
    +
  • 'auto': italic or upright, depending on mode and letter (single letters are +italic in math mode)
    • +
  • 'up': upright
    • +
  • 'it': italic
    • +
  • 'sl': slanted or oblique (often the same as italic)
    • +
  • 'sc': small caps
    • +
  • 'ol': outline
    • +
+

+ - -

True if the virtual keyboard is -visible

- -
-
+
- keystrokeBuffer + style.size @@ -338,49 +719,37 @@
Properties
 - - - -

The last few keystrokes, to look out -for inline shortcuts

+ - -
- + -
- - keystrokeBufferStates + + - - : -object[] - - + = '' - - +

+

The font size: 'size1'...'size10' +'size5' is the default size

+

+ - -

The saved state for each of the -past keystrokes

- -
+
- - - -
+ + +
+
@@ -388,9 +757,8 @@
Properties
- - +
@@ -411,8 +779,6 @@
Properties
-
- @@ -425,13 +791,10 @@
Properties
+ - -
- -
@@ -439,14 +802,13 @@
Properties
- - - -

Methods

+ + +
@@ -454,7 +816,7 @@

Methods

-

$el(): Element

+

$el(): HTMLElement

@@ -484,7 +846,7 @@

$el() : -Element +HTMLElement    @@ -655,7 +1017,16 @@

$insert(s : -string +'placeholder' +| + +'after' +| + +'before' +| + +'item' @@ -685,35 +1056,6 @@

$insert(s - - options.mode - - - - - : -string - - - - - - - - - - -

-

The mode ('text' or 'math') to use. Default -is the current mode.

-

- - - - - -
options.format @@ -722,7 +1064,10 @@

$insert(s : -string +'auto' +| + +'latex' @@ -812,7 +1157,13 @@

$insert(s : -string +'text' +| + +'math' +| + +'' @@ -1563,6 +1914,7 @@

$selectedText(format
  • 'spoken'
  • 'spoken-text'
  • 'spoken-ssml'
    • +
  • spoken-ssml-withHighlighting
  • 'mathML'
  • 'json'
    • @@ -2069,7 +2421,7 @@

    $selectionIsCollapsed$setConfig(config?: [string]:any)

    +

    $setConfig(config?: MathFieldConfig)

    @@ -2102,7 +2454,7 @@

    $setConfig(config : -[string]:any +MathFieldConfig @@ -2260,6 +2612,7 @@

    $text(formatcomplete_(options + + + + + + + + + + + + + + + + +

    + + + +
    + + + +

    constructor(element: HTMLElement, config: MathFieldConfig)private

    + + + + + +
    +

    To create a mathfield, you would typically use MathLive.makeMathField() +instead of invoking directly this constructor.

    +
    + + + + + + + + + + + + +
    + + + +
    + + element + + + + + : +HTMLElement + + + + + + + + + + +

    +

    The DOM element that this mathfield is attached to. +Note that element.mathfield is this object.

    +

    + + +
    + + + +
    + + config + + + + + : +MathFieldConfig + + + + + + + + + + +

    +

    See Configuration options for details

    +

    + + +
    + + +
    + + + + + + + + +
    + + + + + + + + + + + + + + + + + + + + @@ -3625,7 +4127,7 @@

    speak_(amount -

    If true, synchronized highlighting of speech will happen (if possible)

    +

    If true, synchronized highlighting of speech will happen (if possible). Default is false.

    diff --git a/docs/UndoManager.html b/docs/UndoManager.html index 9f5a6ed0b..4c6fca9bc 100644 --- a/docs/UndoManager.html +++ b/docs/UndoManager.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -645,11 +645,11 @@

    redo()restore()

    +

    restore()private

    @@ -731,11 +731,11 @@

    restore() +
    -

    save()

    +

    save()private

    @@ -902,11 +902,11 @@

    snapshot() +
    -

    snapshotAndCoalesce(options: [any])

    +

    snapshotAndCoalesce(options: [any])private

    diff --git a/docs/global.html b/docs/global.html new file mode 100644 index 000000000..e3be61f36 --- /dev/null +++ b/docs/global.html @@ -0,0 +1,2197 @@ + + + + Global - MathLive Docs + + + + + + + + + + + + + + + + + + + + + + + + +
    Fork me on GitHub
    + + +
    + + + + + + +
    + +
    + +

    Global

    + + + + + + + +
    + +
    + +

    + +

    + + +
    + +
    +
    + + + + + + +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + + + + +
    + + + + + + + + + + + + +

    Members

    + + + +
    +

    INLINE_SHORTCUTS →[string]:stringprivateconstant

    + + + + +
    +

    These shortcut strings are replaced with the corresponding LaTeX expression +without requiring an escape sequence or command.

    +
    + + + +
    Type
    +
      +
    • + : +[string]:string + + +
      • +
    + + + + + +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + + + + + +
    + + +
    +

    KEYBOARD_SHORTCUTS →[string]:stringprivateconstant

    + + + + +
    +

    The index of this array is a keystroke combination as returned by the key +field of a JavaScript keyboard event as documented here: +https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key/Key_Values +except for:

    +
      +
    • Escape → Esc
      • +
    • LeftArrow... → Left/Right/Up/Down
      • +
    • Delete → Del
      • +
    • Escape → Esc
      • +
    • ' ' → Spacebar
      • +
    +

    The modifiers are specified before the main key, in the following order:

    +
      +
    1. Ctrl
      2. +
    2. Meta: Command key on Mac OS. On Windows this is the Windows key, +but the system intercepts those key combinations so they are never received
      3. +
    3. Alt: Option key on Mac OS
      4. +
    4. Shift
      5. +
    +

    The keys can be preceded by a context to restrict when the shortcut is +applicable. For example, "math:Ctrl-KeyA" will restrict this shortcut +to only apply in the "math" context (parseMode). Other valid context include +"text" and "command".

    +

    The value of the entries represent the command to perform. +This can be either a single selector, or an array of a selector followed +by its arguments. +Selectors uses the following naming conventions:

    +
      +
    • a 'char' is a math atom (a letter, digit, symbol or compound atom)
      • +
    • a 'word' is a sequence of math atoms of the same type
      • +
    • a 'group' is a sequence of sibling atoms, for example a numerator or +a superscript
      • +
    • the 'MathField' is the entire expression being edited
      • +
    • a 'placeholder' is either an actual placeholder atom or an empty child +list, for example an empty numerator
      • +
    • 'move' changes the position of the insertion point (and collapses the +selection range if necessary)
      • +
    • 'extend' keeps the anchor of the selection, but moves the focus (extends, +or shrinks, the range of selected items)
      • +
    +
    + + + +
    Type
    +
      +
    • + : +[string]:string + + +
      • +
    + + + + + +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + + + + + +
    + + +
    +

    REVERSE_KEYBOARD_SHORTCUTS →[string]:stringprivateconstant

    + + + + +
    +

    Most commands can be associated to their keyboard shortcuts from the +KEYBOARD_SHORTCUTS table above, for example 'speakSelection' -> 'Ctrl-KeyR' +However, those that contain complex commands are more ambiguous. +For example, '\sqrt' -> 'math:Alt-KeyV'. This table provides the reverse +mapping for those more complex commands. It is used when displaying +keyboard shortcuts for specific commands in the popover.

    +
    + + + +
    Type
    +
      +
    • + : +[string]:string + + +
      • +
    + + + + + +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + + + + + +
    + + + + +

    Methods

    + + + +
    + + + +

    startsWithString(s: string, config: object): string[]

    + + + + + +
    +

    Return an array of potential shortcuts

    +
    + + + + + + + + + + + + +
    + + + +
    + + s + + + + + : +string + + + + + + + + + + +
    + + + +
    + + config + + + + + : +object + + + + + + + + + + +
    + + +
    + + + + + + → + + + + + : +string[] + + +    + + + + + + + + + + + +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + + + + + + + + + + + + + + + + +
    + + + +
    + + + +

    validateShortcut(mode: string, siblings: object[], shortcut: string)

    + + + + + + + + + + + + + + + + +
    + + + +
    + + mode + + + + + : +string + + + + + + + + + + +
    + + + +
    + + siblings + + + + + : +object[] + + + + + + + + + + +

    +

    atoms preceding this potential shortcut

    +

    + + +
    + + + +
    + + shortcut + + + + + : +string + + + + + + + + + + +
    + + +
    + + + + + + + + +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + + + + + + + + + + + + + + + + +
    + + + + + +

    Type Definitions

    + + + +
    + + + +

    MathFieldCallback(mf: MathField): void

    + + + + + + + + + + + + + + + + +
    + + + +
    + + mf + + + + + : +MathField + + + + + + + + + + +
    + + +
    + + + + + + → + + + + + : +void + + +    + + + + + + + + + + + +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + + + + + + + + + + + + + + + + +
    + + + +
    +

    MathFieldConfig

    + + + + + + +
    Type
    +
      +
    • + : +Object + + +
      • +
    + + + + + +
    Properties
    + + + + + + +
    + + locale? + + + + + : +string + + + + + + + + + + + + +
    + + + +
    + + strings? + + + + + : +object.<string, string> + + + + + + + + + + + + +
    + + + +
    + + horizontalSpacingScale? + + + + + : +number + + + + + + + + + + + + +
    + + + +
    + + namespace? + + + + + : +string + + + + + + + + + + + + +
    + + + +
    + + substituteTextArea? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + defaultMode? + + + + + : +"math" +| + +"text" + + + + + + + + + + + + +
    + + + +
    + + onFocus? + + + + + : +MathFieldCallback + + + + + + + + + + + + +
    + + + +
    + + onBlur? + + + + + : +MathFieldCallback + + + + + + + + + + + + +
    + + + +
    + + onKeystroke? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + onAnnounce? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + overrideDefaultInlineShortcuts? + + + + + : +boolean + + + + + + + + + + + + +
    + + + +
    + + inlineShortcuts? + + + + + : +object.<string, string> + + + + + + + + + + + + +
    + + + +
    + + inlineShortcutTimeout? + + + + + : +number + + + + + + + + + + + + +
    + + + +
    + + smartFence? + + + + + : +boolean + + + + + + + + + + + + +
    + + + +
    + + smartSuperscript? + + + + + : +boolean + + + + + + + + + + + + +
    + + + +
    + + scriptDepth? + + + + + : +number + + + + + + + + + + + + +
    + + + +
    + + removeExtraneousParentheses? + + + + + : +boolean + + + + + + + + + + + + +
    + + + +
    + + ignoreSpacebarInMathMode? + + + + + : +boolean + + + + + + + + + + + + +
    + + + +
    + + virtualKeyboardToggleGlyph? + + + + + : +string + + + + + + + + + + + + +
    + + + +
    + + virtualKeyboardMode? + + + + + : +"manual" +| + +"onfocus" +| + +"off" + + + + + + + + + + + + +
    + + + +
    + + virtualKeyboards? + + + + + : +"all" +| + +"numeric" +| + +"roman" +| + +"greek" +| + +"functions" +| + +"command" +| + +string + + + + + + + + + + + + +
    + + + +
    + + virtualKeyboardRomanLayout? + + + + + : +"qwerty" +| + +"azerty" +| + +"qwertz" +| + +"dvorak" +| + +"colemak" + + + + + + + + + + + + +
    + + + +
    + + customVirtualKeyboardLayers? + + + + + : +object.<string, string> + + + + + + + + + + + + +
    + + + +
    + + customVirtualKeyboards? + + + + + : +object.<string, object> + + + + + + + + + + + + +
    + + + +
    + + virtualKeyboardTheme? + + + + + : +"material" +| + +"apple" +| + +"" + + + + + + + + + + + + +
    + + + +
    + + keypressVibration? + + + + + : +boolean + + + + + + + + + + + + +
    + + + +
    + + keypressSound? + + + + + : +string + + + + + + + + + + + + +
    + + + +
    + + plonkSound? + + + + + : +string + + + + + + + + + + + + +
    + + + +
    + + textToSpeechRules? + + + + + : +"mathlive" +| + +"sre" + + + + + + + + + + + + +
    + + + +
    + + textToSpeechMarkup? + + + + + : +"ssml" +| + +"mac" + + + + + + + + + + + + +
    + + + +
    + + textToSpeechRulesOptions? + + + + + : +object + + + + + + + + + + + + +
    + + + +
    + + speechEngine? + + + + + : +"local" +| + +"amazon" + + + + + + + + + + + + +
    + + + +
    + + speechEngineVoice? + + + + + : +string + + + + + + + + + + + + +
    + + + +
    + + speechEngineRate? + + + + + : +string + + + + + + + + + + + + +
    + + + +
    + + onMoveOutOf? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + onTabOutOf? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + onContentWillChange? + + + + + : +MathFieldCallback + + + + + + + + + + + + +
    + + + +
    + + onContentDidChange? + + + + + : +MathFieldCallback + + + + + + + + + + + + +
    + + + +
    + + onSelectionWillChange? + + + + + : +MathFieldCallback + + + + + + + + + + + + +
    + + + +
    + + onSelectionDidChange? + + + + + : +MathFieldCallback + + + + + + + + + + + + +
    + + + +
    + + onUndoStateWillChange? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + onUndoStateDidChange? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + onModeChange? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + onVirtualKeyboardToggle? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + onReadAloudStatus? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + handleSpeak? + + + + + : +function + + + + + + + + + + + + +
    + + + +
    + + handleReadAloud? + + + + + : +function + + + + + + + + + + + + +
    + + + + + + +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + + + + + +
    + + + + +
    + +
    + + + + +
    + + + + + + + + + + + + + \ No newline at end of file diff --git a/docs/index.html b/docs/index.html index 9c4b0206b..d777f7c1a 100644 --- a/docs/index.html +++ b/docs/index.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -79,7 +79,7 @@

    MathLive Docs

    - +

    Welcome to MathLive, a JavaScript library to render and edit math.

    diff --git a/docs/module-addons_debug.html b/docs/module-addons_debug.html index feb91aa40..2a1fa6b2c 100644 --- a/docs/module-addons_debug.html +++ b/docs/module-addons_debug.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    diff --git a/docs/module-addons_maston.html b/docs/module-addons_maston.html index 4ef565a20..ab7a75cfd 100644 --- a/docs/module-addons_maston.html +++ b/docs/module-addons_maston.html @@ -40,7 +40,7 @@ @@ -180,11 +180,11 @@

    Methods

    -
    +
    -

    asLatex(ast: object): stringinner

    +

    asLatex(ast: object): stringprivateinner

    @@ -450,11 +450,11 @@

    asMachineNumber(n -
    +
    -

    asSymbol(expr: object): stringinner

    +

    asSymbol(expr: object): stringprivateinner

    @@ -585,11 +585,11 @@

    asSymbol(expr +
    -

    escapeText(s: string): stringinner

    +

    escapeText(s: string): stringprivateinner

    @@ -717,11 +717,11 @@

    escapeText(s +
    -

    formatMantissa(m: string, config: [string]:any)inner

    +

    formatMantissa(m: string, config: [string]:any)privateinner

    @@ -856,11 +856,11 @@

    formatMantissa(m +
    -

    getCanonicalName(latex,: string): stringinner

    +

    getCanonicalName(latex,: string): stringprivateinner

    @@ -991,11 +991,11 @@

    getCanonicalName -
    +
    -

    getLatexForSymbol(name: string): stringinner

    +

    getLatexForSymbol(name: string): stringprivateinner

    @@ -1124,11 +1124,11 @@

    getLatexForSymbolgetLatexTemplateForFunction(name: string): stringinner

    +

    getLatexTemplateForFunction(name: string): stringprivateinner

    @@ -1257,11 +1257,11 @@

    getLatexTemplateForFunction +
    -

    getPrecedence(canonicalName,: string): numberinner

    +

    getPrecedence(canonicalName,: string): numberprivateinner

    @@ -1394,11 +1394,11 @@

    getPrecedence(canon -
    +
    -

    isAtom(expr: object, type: string, value: string)inner

    +

    isAtom(expr: object, type: string, value: string)privateinner

    @@ -1554,11 +1554,11 @@

    isAtom(exprnegate(node: object)inner

    +

    negate(node: object)privateinner

    @@ -1669,11 +1669,11 @@

    negate(nodenumberAsLatex(num: string | number): stringinner

    +

    numberAsLatex(num: string | number): stringprivateinner

    @@ -1808,11 +1808,11 @@

    numberAsLatex(num +
    -

    opPrec(atom: object): numberinner

    +

    opPrec(atom: object): numberprivateinner

    @@ -1941,11 +1941,11 @@

    opPrec(atomparse(atoms: Atoms[]): objectinner

    +

    parse(atoms: Atoms[]): objectprivateinner

    @@ -2069,11 +2069,11 @@

    parse(atomsparseDelim()inner

    +

    parseDelim()privateinner

    @@ -2161,11 +2161,11 @@

    parseDelim() +
    -

    parseDigraph()inner

    +

    parseDigraph()privateinner

    @@ -2395,11 +2395,11 @@

    parseExpression(e -
    +
    -

    parsePostfix()inner

    +

    parsePostfix()privateinner

    @@ -2479,11 +2479,11 @@

    parsePostfix() +
    -

    parseSentence(expr: object): objectinner

    +

    parseSentence(expr: object): objectprivateinner

    @@ -2612,11 +2612,11 @@

    parseSentence(expr< -
    +
    -

    parseSupsub(expr: object)inner

    +

    parseSupsub(expr: object)privateinner

    @@ -2728,11 +2728,11 @@

    parseSupsub(expr +
    -

    wrapFence(fence: string): stringinner

    +

    wrapFence(fence: string): stringprivateinner

    @@ -2865,11 +2865,11 @@

    wrapFence(fence +
    -

    wrapFn(functionName: string, …params: object)inner

    +

    wrapFn(functionName: string, …params: object)privateinner

    diff --git a/docs/module-addons_outputLatex.html b/docs/module-addons_outputLatex.html index 8cb88ff39..df5eb2f21 100644 --- a/docs/module-addons_outputLatex.html +++ b/docs/module-addons_outputLatex.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -81,7 +81,7 @@

    addons/outputLatex

    This module outputs a formula to LaTeX.

    -

    To use it, use the MathAtom.toLatex() method.

    +

    To use it, use the MathAtom.toLatex() method.

    @@ -317,11 +317,11 @@

    latexify(value +
    -

    latexifyArray(parent: MathAtom, atoms: MathAtom[], expandMacro: boolean)inner

    +

    latexifyArray(parent: MathAtom, atoms: MathAtom[], expandMacro: boolean)privateinner

    diff --git a/docs/module-addons_outputMathML.html b/docs/module-addons_outputMathML.html index 7aebfa729..f80994d19 100644 --- a/docs/module-addons_outputMathML.html +++ b/docs/module-addons_outputMathML.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -179,11 +179,11 @@

    Methods

    -
    +
    -

    isSuperscriptAtom(stream: object)inner

    +

    isSuperscriptAtom(stream: object)privateinner

    diff --git a/docs/module-core_color.html b/docs/module-core_color.html index 1cae1abef..fce8a404f 100644 --- a/docs/module-core_color.html +++ b/docs/module-core_color.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    diff --git a/docs/module-core_definitions.html b/docs/module-core_definitions.html index f2425b79d..84ab888e4 100644 --- a/docs/module-core_definitions.html +++ b/docs/module-core_definitions.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -304,263 +304,6 @@
    Type
    -

    Methods

    - - - -
    - - - -

    getSimpleString(atoms: object[])inner

    - - - - - -
    -

    If possible, i.e. if they are all simple atoms, return a string made up of -their body

    -
    - - - - - - - - - - - - -
    - - - -
    - - atoms - - - - - : -object[] - - - - - - - - - - -
    - - -
    - - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - -
    - - - -
    - - - -

    mathVariantToUnicode(char: string, variant: string)inner

    - - - - - -
    -

    Given a character and variant ('bb', 'cal', etc...) -return the corresponding unicode character (a string)

    -
    - - - - - - - - - - - - -
    - - - -
    - - char - - - - - : -string - - - - - - - - - - -
    - - - -
    - - variant - - - - - : -string - - - - - - - - - - -
    - - -
    - - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - -
    - - - diff --git a/docs/module-core_delimiters.html b/docs/module-core_delimiters.html index 8c51cd3ba..47d9bc8b2 100644 --- a/docs/module-core_delimiters.html +++ b/docs/module-core_delimiters.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -187,164 +187,7 @@

    core/delimiters

    -

    Members

    - - -
    -

    stackNeverDelimiterSequenceinnerconstant

    - - - - -
    -

    There are three different sequences of delimiter sizes that the delimiters -follow depending on the kind of delimiter. This is used when creating custom -sized delimiters to decide whether to create a small, large, or stacked -delimiter.

    -

    In real TeX, these sequences aren't explicitly defined, but are instead -defined inside the font metrics. Since there are only three sequences that -are possible for the delimiters that TeX defines, it is easier to just encode -them explicitly here.

    -
    - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - -
    - - - - -

    Methods

    - - - -
    - - - -

    delimTypeToFont()inner

    - - - - - -
    -

    Get the font used in a delimiter based on what kind of delimiter it is.

    -
    - - - - - - - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - -
    - - diff --git a/docs/module-core_fontMetrics.html b/docs/module-core_fontMetrics.html index 06451d6d0..1d460cb27 100644 --- a/docs/module-core_fontMetrics.html +++ b/docs/module-core_fontMetrics.html @@ -40,7 +40,7 @@ @@ -171,71 +171,9 @@

    core/fontMetrics

    - - - - -

    Members

    - - - -
    -

    METRICSstaticconstant

    - - - - -
    -

    This is just a mapping from common names to real metrics

    -
    - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - -
    - @@ -243,11 +181,11 @@

    Methods

    -
    +
    -

    convertDimenToEm(value: number | string, unit: string, precision: number)inner

    +

    convertDimenToEm(value: number | string, unit: string, precision: number)privateinner

    diff --git a/docs/module-core_lexer.html b/docs/module-core_lexer.html index 997c3438b..530c6aac2 100644 --- a/docs/module-core_lexer.html +++ b/docs/module-core_lexer.html @@ -40,7 +40,7 @@ diff --git a/docs/module-core_lexer_Lexer.html b/docs/module-core_lexer_Lexer.html index bfbb8dc67..bc14ff465 100644 --- a/docs/module-core_lexer_Lexer.html +++ b/docs/module-core_lexer_Lexer.html @@ -40,7 +40,7 @@ @@ -322,11 +322,11 @@

    end()get(): string

    +

    get(): stringprivate

    diff --git a/docs/module-core_lexer_Token.html b/docs/module-core_lexer_Token.html index b2242d994..413ad6a66 100644 --- a/docs/module-core_lexer_Token.html +++ b/docs/module-core_lexer_Token.html @@ -40,7 +40,7 @@ diff --git a/docs/module-core_mathatom-MathAtom.html b/docs/module-core_mathatom-MathAtom.html index 4804e03ad..a64f6a06a 100644 --- a/docs/module-core_mathatom-MathAtom.html +++ b/docs/module-core_mathatom-MathAtom.html @@ -40,7 +40,7 @@ @@ -76,6 +76,11 @@

    MathAtom

    +

    An atom is an object encapsulating an elementary mathematical unit, +independent of its graphical representation.

    +

    It keeps track of the content, while the dimensions, position and style +are tracked by Span objects which are created by the decompose() functions.

    + @@ -83,11 +88,13 @@

    -
    +
    +

    Constructor

    + -

    new MathAtom(mode: string, type: string, body: string | Array, style: object)

    +

    new MathAtom(mode: string, type: string, body: string | Array, style: object): MathAtomprivate

    @@ -207,9 +214,317 @@

    new MathAtom(mode + + : +MathAtom + + +    + + + + + + + + + + + +
    Properties
    + + + + + + +
    + + mode + + + + + : +string + + + + + + + + + +

    'display', 'command', etc...

    + +     +
    + + + +
    + + type + + + + + : +string + + + + + + + + + +

    Type can be one of:

    +
      +
    • mord: ordinary symbol, e.g. x, \alpha
      • +
    • textord: ordinary characters
      • +
    • mop: operators, including special functions, \sin, \sum, \cap.
      • +
    • mbin: binary operator: +, *, etc...
      • +
    • mrel: relational operator: =, \ne, etc...
      • +
    • mpunct: punctuation: ,, :, etc...
      • +
    • mopen: opening fence: (, \langle, etc...
      • +
    • mclose: closing fence: ), \rangle, etc...
      • +
    • minner: special layout cases, overlap, \left...\right
      • +
    +

    In addition to these basic types, which correspond to the TeX atom types, +some atoms represent more complex compounds, including:

    +
      +
    • space and spacing: blank space between atoms
      • +
    • mathstyle: to change the math style used: display or text. +The layout rules are different for each, the latter being more compact and +intended to be incorporated with surrounding non-math text.
      • +
    • root: a group, which has no parent (only one per formula)
      • +
    • group: a simple group of atoms, for example from a {...}
      • +
    • sizing: set the size of the font used
      • +
    • rule: draw a line, for the \rule command
      • +
    • line: used by \overline and \underline commands
      • +
    • box: a border drawn around an expression and change its background color
      • +
    • overlap: display a symbol over another
      • +
    • overunder: displays an annotation above or below a symbol
      • +
    • array: a group, which has children arranged in rows. Used +by environments such as matrix, cases, etc...
      • +
    • genfrac: a generalized fraction: a numerator and denominator, separated +by an optional line, and surrounded by optional fences
      • +
    • surd: a surd, aka root
      • +
    • leftright: used by the \left and \right commands
      • +
    • delim: some delimiter
      • +
    • sizeddelim: a delimiter that can grow
      • +
    +

    The following types are used by the editor:

    +
      +
    • command indicate a command being entered. The text is displayed in +blue in the editor.
      • +
    • error: indicate a command that is unknown, for example \xyzy. The text +is displayed with a wavy red underline in the editor.
      • +
    • placeholder: indicate a temporary item. Placeholders are displayed +as a dashed square in the editor.
      • +
    • first: a special, empty, atom put as the first atom in math lists in +order to be able to position the caret before the first element. Aside from +the caret, they display nothing.
      • +
    + +     +
    + + + +
    + + body + + + + + : +string +| + +MathAtom[] + + + + + + + + + + + + +
    +
    + + superscript + + + + + : +MathAtom[] + + + + + + + + + + + + +
    + + + +
    + + subscript + + + + + : +MathAtom[] + + + + + + + + + + + + +
    + + + +
    + + numer + + + + + : +MathAtom[] + + + + + + + + + + + + +
    + + + +
    + + denom + + + + + : +MathAtom[] + + + + + + + + + + + + +
    + + + +
    + + captureSelection + + + + + : +boolean + + + + + + + + + +

    if true, this atom does not let its +children be selected. Used by the \enclose annotations, for example.

    + +     +
    + + + +
    + + skipBoundary + + + + + : +boolean + + + + + + + + + +

    if true, when the caret reaches the +first position in this element's body, it automatically moves to the +outside of the element. Conversely, when the caret reaches the position +right after this element, it automatically moves to the last position +inside this element.

    + +     +
    + + + + +
    diff --git a/docs/module-core_mathatom.html b/docs/module-core_mathatom.html index 97c0f3d43..26ea08bd5 100644 --- a/docs/module-core_mathatom.html +++ b/docs/module-core_mathatom.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    diff --git a/docs/module-core_mathstyle.html b/docs/module-core_mathstyle.html index b647f8fe7..ca18c64d8 100644 --- a/docs/module-core_mathstyle.html +++ b/docs/module-core_mathstyle.html @@ -40,7 +40,7 @@ diff --git a/docs/module-core_mathstyle_Mathstyle.html b/docs/module-core_mathstyle_Mathstyle.html index 823400ee1..cb1a71b3c 100644 --- a/docs/module-core_mathstyle_Mathstyle.html +++ b/docs/module-core_mathstyle_Mathstyle.html @@ -40,7 +40,7 @@ diff --git a/docs/module-core_parser.html b/docs/module-core_parser.html index e51ce16bb..3113649a4 100644 --- a/docs/module-core_parser.html +++ b/docs/module-core_parser.html @@ -40,7 +40,7 @@ diff --git a/docs/module-core_parser_Parser.html b/docs/module-core_parser_Parser.html index bc2aab9b9..b0f045558 100644 --- a/docs/module-core_parser_Parser.html +++ b/docs/module-core_parser_Parser.html @@ -40,7 +40,7 @@ @@ -686,11 +686,11 @@

    end()hasLiteralPattern(pattern: RegEx): boolean

    +

    hasLiteralPattern(pattern: RegEx): booleanprivate

    @@ -817,11 +817,11 @@

    hasLiteralPattern +
    -

    hasToken(type: string): boolean

    +

    hasToken(type: string): booleanprivate

    @@ -914,6 +914,91 @@

    hasToken(type + + + + + + + + + + + + + + + + +

    + + + +
    + + + +

    lastMathAtom()private

    + + + + + +
    +

    Return the last atom of the math list +If there isn't one, insert a msubsup and return it.

    +
    + + + + + + + + + + + + + + + + + +
    + + + + + + + + + + + + + + + + + + + + @@ -1363,11 +1448,11 @@

    parseSupSub() +
    -

    parseToken(type: string)

    +

    parseToken(type: string)private

    diff --git a/docs/module-core_span.exports.Span.html b/docs/module-core_span.exports.Span.html new file mode 100644 index 000000000..53fe31a62 --- /dev/null +++ b/docs/module-core_span.exports.Span.html @@ -0,0 +1,535 @@ + + + + Span - MathLive Docs + + + + + + + + + + + + + + + + + + + + + + + + +
    Fork me on GitHub
    + + +
    + + + + + + +
    + +
    + +

    Span

    + + + + + + + +
    + +
    + +

    + core/span. + + Span +

    + +

    A span is the most elementary element that can be rendered. +It is composed of an optional body of text and an optional list +of children (other spans). Each span can be decorated with +CSS classes and style attributes.

    + + +
    + +
    +
    + + +
    + + +

    Constructor

    + + +

    new Span(content: string | Span | Span[], classes: string): voidprivate

    + + + + + + + + + + + + + + + + +
    + + + +
    + + content + + + + + : +string +| + +Span +| + +Span[] + + + + + + + + + + +

    +

    the items 'contained' by this node

    +

    + + +
    + + + +
    + + classes + + + + + : +string + + + + + + + + + + +

    +

    list of classes attributes associated with this node

    +

    + + +
    + + +
    + + + + + + → + + + + + : +void + + +    + + + + + + + + + + + +
    Properties
    + + + + + + +
    + + type + + + + + : +string + + + + + + + + + +

    For example, 'command', 'mrel', etc...

    + +     +
    + + + +
    + + classes + + + + + : +string + + + + + + + + + +

    A string of space separated CSS classes +associated with this element

    + +     +
    + + + +
    + + cssID + + + + + : +string + + + + + + + + + +

    A CSS ID assigned to this span (optional)

    + +     +
    + + + +
    + + children + + + + + : +Span[] + + + + + + + + + +

    An array, potentially empty, of spans which +this span encloses

    + +     +
    + + + +
    + + body + + + + + : +string + + + + + + + + + +

    Content of this span. Can be empty.

    + +     +
    + + + +
    + + style + + + + + : +[string]:any + + + + + + + + + +

    A set of key/value pairs specifying CSS properties +associated with this element.

    + +     +
    + + + +
    + + height + + + + + : +number + + + + + + + + + +

    The measurement from baseline to top, in em.

    + +     +
    + + + +
    + + depth + + + + + : +number + + + + + + + + + +

    The measurement from baseline to bottom, in em.

    + +     +
    + + + + + + +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    + + + + + + + + + + + + + + + + +
    + + +
    + + + + + + + + + + + + + + + + + + +
    + +
    + + + + +
    + + + + + + + + + + + + + \ No newline at end of file diff --git a/docs/module-core_span.html b/docs/module-core_span.html index 65e3c0a2a..a48060a0e 100644 --- a/docs/module-core_span.html +++ b/docs/module-core_span.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -88,6 +88,13 @@

    core/span

    +

    Classes

    + +
    +
    Span
    +
    +
    + @@ -1423,11 +1430,11 @@

    toString(arg +
    -

    makeSVG(body: Span, svgMarkup: string)inner

    +

    makeSVG(body: Span, svgMarkup: string)privateinner

    diff --git a/docs/module-editor_editableMathlist.html b/docs/module-editor_editableMathlist.html index 156385d34..363afc5b6 100644 --- a/docs/module-editor_editableMathlist.html +++ b/docs/module-editor_editableMathlist.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs
    @@ -184,11 +184,11 @@

    Methods

    -
    +
    -

    parseMathString(s: string)static

    +

    parseMathString(s: string)privatestatic

    @@ -334,11 +334,11 @@

    parseMathString(s -
    +
    -

    arrayAdjustRow(array: Array.<Array.<MathAtom>>, colRow: object, dir: number)inner

    +

    arrayAdjustRow(array: Array.<Array.<MathAtom>>, colRow: object, dir: number)privateinner

    @@ -496,11 +496,11 @@

    arrayAdjustRow(arr -
    +
    -

    arrayCell(array: Array.<Array.<MathAtom>>, colrow: number | string | object)inner

    +

    arrayCell(array: Array.<Array.<MathAtom>>, colrow: number | string | object)privateinner

    @@ -640,11 +640,11 @@

    arrayCell(array +
    -

    arrayCellCount(array: Array.<Array.<MathAtom>>)inner

    +

    arrayCellCount(array: Array.<Array.<MathAtom>>)privateinner

    @@ -754,11 +754,11 @@

    arrayCellCount(arr -
    +
    -

    arrayColRow(array: Array.<Array.<MathAtom>>, index: number | string): objectinner

    +

    arrayColRow(array: Array.<Array.<MathAtom>>, index: number | string): objectprivateinner

    @@ -917,11 +917,11 @@

    arrayColRow(array +
    -

    arrayColumnCellCount(array: MathAtom, col: number): numberinner

    +

    arrayColumnCellCount(array: MathAtom, col: number): numberprivateinner

    @@ -1072,11 +1072,11 @@

    arrayColumnCellCountarrayFirstCellByRow(array: Array.<Array.<MathAtom>>): stringinner

    +

    arrayFirstCellByRow(array: Array.<Array.<MathAtom>>): stringprivateinner

    @@ -1204,11 +1204,11 @@

    arrayFirstCellByRowarrayIndex(array: Array.<Array.<MathAtom>>, rowCol: object): numberinner

    +

    arrayIndex(array: Array.<Array.<MathAtom>>, rowCol: object): numberprivateinner

    @@ -1359,11 +1359,11 @@

    arrayIndex(array +
    -

    arrayJoinColumns(row: MathAtom[], separator: string, style: object): MathAtom[]inner

    +

    arrayJoinColumns(row: MathAtom[], separator: string, style: object): MathAtom[]privateinner

    @@ -1537,11 +1537,11 @@

    arrayJoinColumns -
    +
    -

    arrayJoinRows(array: MathAtom, separators: strings, style: object): MathAtom[]inner

    +

    arrayJoinRows(array: MathAtom, separators: strings, style: object): MathAtom[]privateinner

    @@ -1715,11 +1715,11 @@

    arrayJoinRows(array -
    +
    -

    arrayRemoveColumn(array: MathAtom, col: number)inner

    +

    arrayRemoveColumn(array: MathAtom, col: number)privateinner

    @@ -1852,11 +1852,11 @@

    arrayRemoveColumnarrayRemoveRow(atom: MathAtom, row: number)inner

    +

    arrayRemoveRow(atom: MathAtom, row: number)privateinner

    @@ -2143,11 +2143,11 @@

    atomContains(atom +
    -

    isNumber(atom: object)inner

    +

    isNumber(atom: object)privateinner

    @@ -2258,11 +2258,11 @@

    isNumber(atom +
    -

    parseMathArgument(s: string): objectinner

    +

    parseMathArgument(s: string): objectprivateinner

    diff --git a/docs/module-editor_keyboard.html b/docs/module-editor_keyboard.html index c47a1d09f..58ee907b8 100644 --- a/docs/module-editor_keyboard.html +++ b/docs/module-editor_keyboard.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -183,7 +183,7 @@

    Methods

    -

    delegateKeyboardEvents(textarea: Element, handlers: [string]:any)privatestatic

    +

    delegateKeyboardEvents(textarea: HTMLElement, handlers: [string]:any)privatestatic

    @@ -220,7 +220,7 @@

    delegateKeyboardEvents : -Element +HTMLElement @@ -273,7 +273,7 @@

    delegateKeyboardEvents : -Element +HTMLElement @@ -506,11 +506,11 @@

    delegateKeyboardEvents +
    -

    keyboardEventToString(evt: Event)static

    +

    keyboardEventToString(evt: Event)privatestatic

    diff --git a/docs/module-editor_mathfield.html b/docs/module-editor_mathfield.html index 0aa25aee0..04f04665b 100644 --- a/docs/module-editor_mathfield.html +++ b/docs/module-editor_mathfield.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -182,7 +182,7 @@

    Methods

    -

    nearestElementFromPoint(el: Element, x: number, y: number)private

    +

    nearestElementFromPoint(el: HTMLElement, x: number, y: number)private

    @@ -215,7 +215,7 @@

    nearestElementFromPoint : -Element +HTMLElement @@ -452,11 +452,11 @@

    _findElementWithCaretvalidateStyle(style: object)inner

    +

    validateStyle(style: object)privateinner

    diff --git a/docs/module-editor_mathpath.html b/docs/module-editor_mathpath.html index f64b56d5b..fef3709fa 100644 --- a/docs/module-editor_mathpath.html +++ b/docs/module-editor_mathpath.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    diff --git a/docs/module-editor_shortcuts.html b/docs/module-editor_shortcuts.html deleted file mode 100644 index bc8e738e0..000000000 --- a/docs/module-editor_shortcuts.html +++ /dev/null @@ -1,1395 +0,0 @@ - - - - editor/shortcuts - MathLive Docs - - - - - - - - - - - - - - - - - - - - - - - - -
    Fork me on GitHub
    - - -
    - - - - - - -
    - -
    - -

    editor/shortcuts

    - - - - - - - -
    - -
    - - - -
    - -
    -
    - - - - - -
    - - - - - - - - - - - - -

    Members

    - - - -
    -

    INLINE_SHORTCUTS →[string]:stringstaticconstant

    - - - - -
    -

    These shortcut strings are replaced with the corresponding LaTeX expression -without requiring an escape sequence or command.

    -
    - - - -
    Type
    -
      -
    • - : -[string]:string - - -
      • -
    - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - -
    - - -
    -

    KEYBOARD_SHORTCUTS →[string]:stringstaticconstant

    - - - - -
    -

    The index of this array is a keystroke combination as returned by the key -field of a JavaScript keyboard event as documented here: -https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key/Key_Values -except for:

    -
      -
    • Escape → Esc
      • -
    • LeftArrow... → Left/Right/Up/Down
      • -
    • Delete → Del
      • -
    • Escape → Esc
      • -
    • ' ' → Spacebar
      • -
    -

    The modifiers are specified before the main key, in the following order:

    -
      -
    1. Ctrl
      2. -
    2. Meta: Command key on Mac OS. On Windows this is the Windows key, -but the system intercepts those key combinations so they are never received
      3. -
    3. Alt: Option key on Mac OS
      4. -
    4. Shift
      5. -
    -

    The keys can be preceded by a context to restrict when the shortcut is -applicable. For example, "math:Ctrl-KeyA" will restrict this shortcut -to only apply in the "math" context (parseMode). Other valid context include -"text" and "command".

    -

    The value of the entries represent the command to perform. -This can be either a single selector, or an array of a selector followed -by its arguments. -Selectors uses the following naming conventions:

    -
      -
    • a 'char' is a math atom (a letter, digit, symbol or compound atom)
      • -
    • a 'word' is a sequence of math atoms of the same type
      • -
    • a 'group' is a sequence of sibling atoms, for example a numerator or -a superscript
      • -
    • the 'MathField' is the entire expression being edited
      • -
    • a 'placeholder' is either an actual placeholder atom or an empty child -list, for example an empty numerator
      • -
    • 'move' changes the position of the insertion point (and collapses the -selection range if necessary)
      • -
    • 'extend' keeps the anchor of the selection, but moves the focus (extends, -or shrinks, the range of selected items)
      • -
    -
    - - - -
    Type
    -
      -
    • - : -[string]:string - - -
      • -
    - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - -
    - - -
    -

    REVERSE_KEYBOARD_SHORTCUTS →[string]:stringstaticconstant

    - - - - -
    -

    Most commands can be associated to their keyboard shortcuts from the -KEYBOARD_SHORTCUTS table above, for example 'speakSelection' -> 'Ctrl-KeyR' -However, those that contain complex commands are more ambiguous. -For example, '\sqrt' -> 'math:Alt-KeyV'. This table provides the reverse -mapping for those more complex commands. It is used when displaying -keyboard shortcuts for specific commands in the popover.

    -
    - - - -
    Type
    -
      -
    • - : -[string]:string - - -
      • -
    - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - -
    - - - - -

    Methods

    - - - -
    - - - -

    forString(mode: string, context: string, s: string, config: object): stringprivatestatic

    - - - - - -
    -

    This function is used to resolve inline shortcuts.

    -
    - - - - - - - - - - - - -
    - - - -
    - - mode - - - - - : -string - - - - - - - - - - -
    - - - -
    - - context - - - - - : -string - - - - - - - - - - -

    -

    atoms preceding the candidate, potentially used -to reduce which shortcuts are applicable. If 'null', no restrictions are -applied.

    -

    - - -
    - - - -
    - - s - - - - - : -string - - - - - - - - - - -

    -

    candidate inline shortcuts (e.g. 'pi')

    -

    - - -
    - - - -
    - - config - - - - - : -object - - - - - - - - - - -
    - - -
    - - - - - - → - - - - - : -string - - -    - - -
      -
    • A replacement string matching the shortcut (e.g. '\pi')
      • -
    - -     - - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - -
    - - - -
    - - - -

    platform(p: string): stringprivatestatic

    - - - - - -
    -

    Return p, the platform name if p is the current platform, otherwise -return !p. For example, when running on Windows, platform('mac') returns -'!mac'. -The valid values for p are:

    -
      -
    • 'mac'
      • -
    • 'win'
      • -
    • 'android'
      • -
    • 'ios'
      • -
    • 'chromeos'
      • -
    • 'other' (Linux, etc...)
      • -
    -
    - - - - - - - - - - - - -
    - - - -
    - - p - - - - - : -string - - - - - - - - - - -

    -

    The platform to test against.

    -

    - - -
    - - -
    - - - - - - → - - - - - : -string - - -    - - -

    if we are running on the candidate platform, return it. -Otherwise, return "!" + candidate.

    - -     - - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - -
    - - - -
    - - - -

    selectorForKeystroke(mode: string, keystroke: string): stringprivatestatic

    - - - - - -
    -

    Return the selector matching the keystroke.

    -
    - - - - - - - - - - - - -
    - - - -
    - - mode - - - - - : -string - - - - - - - - - - -
    - - - -
    - - keystroke - - - - - : -string - - - - - - - - - - -
    - - -
    - - - - - - → - - - - - : -string - - -    - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - -
    - - - -
    - - - -

    stringify(shortcuts: [string]:string, joinnullable: string)privatestatic

    - - - - - -
    -

    Return a human readable representation of an array of shortcut strings

    -
    - - - - - - - - - - - - -
    - - - -
    - - shortcuts - - - - - : -[string]:string - - - - - - - - - - -
    - - - -
    - - join - - - - - : -string - - - - - - - - - - - nullable - - - - - - - - - -

    -

    optional, string in between each shortcut representation

    -

    - - -
    - - -
    - - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - -
    - - - -
    - - - -

    startsWithString(s: string, config: object): string[]inner

    - - - - - -
    -

    Return an array of potential shortcuts

    -
    - - - - - - - - - - - - -
    - - - -
    - - s - - - - - : -string - - - - - - - - - - -
    - - - -
    - - config - - - - - : -object - - - - - - - - - - -
    - - -
    - - - - - - → - - - - - : -string[] - - -    - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - -
    - - - -
    - - - -

    validateShortcut(mode: string, siblings: object[], shortcut: string)inner

    - - - - - - - - - - - - - - - - -
    - - - -
    - - mode - - - - - : -string - - - - - - - - - - -
    - - - -
    - - siblings - - - - - : -object[] - - - - - - - - - - -

    -

    atoms preceding this potential shortcut

    -

    - - -
    - - - -
    - - shortcut - - - - - : -string - - - - - - - - - - -
    - - -
    - - - - - - - - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - - - - - - - - - - - - - - - -
    - - - - - - - -
    - -
    - - - - -
    - - - - - - - - - - - - - \ No newline at end of file diff --git a/docs/module-editor_virtualKeyboard.html b/docs/module-editor_virtualKeyboard.html index 8d2495f16..0b5d4ca77 100644 --- a/docs/module-editor_virtualKeyboard.html +++ b/docs/module-editor_virtualKeyboard.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -237,11 +237,11 @@

    expandLayerMarkupmake(mf: object, theme: string)inner

    +

    make(mf: object, theme: string)privateinner

    diff --git a/docs/module-mathlive.html b/docs/module-mathlive.html index 92f93ed4c..3deeb71b8 100644 --- a/docs/module-mathlive.html +++ b/docs/module-mathlive.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -190,7 +190,7 @@

    Methods

    -

    getOriginalContent(element: string | Element | MathField, options?: object): string

    +

    getOriginalContent(element: string | HTMLElement | MathField, options?: object): string

    @@ -238,7 +238,7 @@

    getOriginalContentstring | -Element +HTMLElement | MathField @@ -1295,7 +1295,7 @@

    latexToSpeakableTextmakeMathField(element: Element | string, config?: [string]:any): MathField

    +

    makeMathField(element: HTMLElement | string, config?: MathFieldConfig): MathField

    @@ -1331,7 +1331,7 @@

    makeMathField(elemen : -Element +HTMLElement | string @@ -1363,7 +1363,7 @@

    makeMathField(elemen : -[string]:any +MathFieldConfig @@ -1493,7 +1493,7 @@

    pauseReadAloud()

    If a Read Aloud operation is in progress, stop it.

    -

    See speakAllWithSynchronizedHighlighting

    +

    See speak

    @@ -1578,7 +1578,7 @@

    playReadAloud(token<

    If a Read Aloud operation is in progress, read from a specified token

    -

    See speakAllWithSynchronizedHighlighting

    +

    See speak

    @@ -1903,7 +1903,7 @@

    readAloudStatus()<
  • paused
  • unavailable
    • -

    See speakAllWithSynchronizedHighlighting

    +

    See speak

    @@ -1998,7 +1998,7 @@

    readAloudStatus()< -

    renderMathInElement(element: Element | string, options?: object, renderToMarkup?: function, renderToMathML?: function, renderToSpeakableText?: function)

    +

    renderMathInElement(element: HTMLElement | string, options?: object, renderToMarkup?: function, renderToMathML?: function, renderToSpeakableText?: function)

    @@ -2033,7 +2033,7 @@

    renderMathInElement : -Element +HTMLElement | string @@ -2448,7 +2448,7 @@

    renderMathInElement

    if true, generate markup that can -be read aloud later using speakAllWithSynchronizedHighlighting

    +be read aloud later using speak

    @@ -2766,7 +2766,7 @@

    resumeReadAloud()<

    If a Read Aloud operation is paused, resume it

    -

    See speakAllWithSynchronizedHighlighting

    +

    See speak

    @@ -2843,7 +2843,7 @@

    resumeReadAloud()< -

    revertToOriginalContent(element: string | Element | MathField, options?: [string]:any)

    +

    revertToOriginalContent(element: string | HTMLElement | MathField, options?: [string]:any)

    @@ -2875,7 +2875,7 @@

    revertToOriginalContentstring | -Element +HTMLElement | MathField @@ -3144,7 +3144,7 @@

    highlightAtomID(a -

    renderMathInDocument(options?: object)inner

    +

    renderMathInDocument(options?: object.<string, any>)inner

    @@ -3183,7 +3183,7 @@

    renderMathInDocument : -object +object.<string, any> diff --git a/docs/tutorial-COMMANDS_REFERENCE.html b/docs/tutorial-COMMANDS_REFERENCE.html index 6a6ae9ee0..0c76dc47c 100644 --- a/docs/tutorial-COMMANDS_REFERENCE.html +++ b/docs/tutorial-COMMANDS_REFERENCE.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    diff --git a/docs/tutorial-CONFIG.html b/docs/tutorial-CONFIG.html index c01305cc6..15ff85531 100644 --- a/docs/tutorial-CONFIG.html +++ b/docs/tutorial-CONFIG.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    @@ -176,9 +176,9 @@

    Configuration options

    (but not limits for sum, integrals, etc...)

    This can make it easier to enter equations that fit what's expected for the domain where the mathfield is used.

    -

    To control the depth of superscript and subscript indepdently, provide an array: +

    To control the depth of superscript and subscript independently, provide an array: the first element indicate the maximum depth for subscript and the second element -the depth of superscript. Thus, a value of [0, 1] would supress the entry of +the depth of superscript. Thus, a value of [0, 1] would suppress the entry of subscripts, and allow one level of superscripts.

    config.removeExtraneousParentheses=true:boolean

    diff --git a/docs/tutorial-CONTRIBUTOR_GUIDE.html b/docs/tutorial-CONTRIBUTOR_GUIDE.html index 00c7a89d4..c13dcedb9 100644 --- a/docs/tutorial-CONTRIBUTOR_GUIDE.html +++ b/docs/tutorial-CONTRIBUTOR_GUIDE.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    diff --git a/docs/tutorial-EXAMPLES.html b/docs/tutorial-EXAMPLES.html index b1a0f4241..70b5afb8b 100644 --- a/docs/tutorial-EXAMPLES.html +++ b/docs/tutorial-EXAMPLES.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    diff --git a/docs/tutorial-MASTON.html b/docs/tutorial-MASTON.html index f1124af3d..f2c8acfd6 100644 --- a/docs/tutorial-MASTON.html +++ b/docs/tutorial-MASTON.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs

    diff --git a/docs/tutorial-SELECTORS.html b/docs/tutorial-SELECTORS.html index 6c152702c..57c39709f 100644 --- a/docs/tutorial-SELECTORS.html +++ b/docs/tutorial-SELECTORS.html @@ -40,7 +40,7 @@

    Tutorials

    Modules

    Classes

    Globals

    MathLive Docs
    @@ -426,36 +426,8 @@

    Speech

    -speakSelection - - - -speakParent - - - -speakRightSibling - - - -speakLeftSibling - - - -speakGroup - - - -speakAll - - - -speakSelectionWithSynchronizedHighlighting - - - -speakAllWithSynchronizedHighlighting - +speak +speaks the amount specified by the first parameter. diff --git a/docs/tutorial-USAGE_GUIDE.html b/docs/tutorial-USAGE_GUIDE.html index 59c457c6e..e405e8fdd 100644 --- a/docs/tutorial-USAGE_GUIDE.html +++ b/docs/tutorial-USAGE_GUIDE.html @@ -40,7 +40,7 @@ @@ -343,11 +343,17 @@

    Arrays

    Speech

      -
    • speakAll
      • -
    • speakSelection
      • -
    • speakParent
      • -
    • speakGroup
      • -
    • speakLeftSibling, speakRightSibling
      • +
    • speak This selector takes two arguments. The first argument is a string that determines what should be spoken. The valid values are: +
        +
      • all
        • +
      • left
        • +
      • right
        • +
      • selection
        • +
      • parent
        • +
      • group +The second parameter determines whether what is being spoken should be highlighted. It is an object: {withHighlighting: boolean} (default is false). Note: highlighting currently only works when connected to Amazon's AWS speech synthesizer.
        • +
      +

    Virtual Keyboards

    Entry of expressions can be accomplished using a standard keyboard. In addition diff --git a/examples/common.css b/examples/common.css index cdf507697..a310dba4d 100644 --- a/examples/common.css +++ b/examples/common.css @@ -476,7 +476,7 @@ div#content > header h1, div#content > header h2 { text-transform: uppercase; padding-left:1rem; padding-right:1rem; - margin-left: auto; + margin-left: 40px; margin-right: auto; letter-spacing: -.04ex; text-rendering: optimizeLegibility; diff --git a/examples/index.html b/examples/index.html index 06b8462f8..4ab09ec51 100644 --- a/examples/index.html +++ b/examples/index.html @@ -2,7 +2,7 @@ - MathLive examples + MathLive Examples @@ -19,7 +19,15 @@

    MathLive Examples

    Basic

    -

    A very basic example showing how to create and interact with a MathLive mathfield.

    +

    With a few lines of code you can add interactive math fields to your web page.

    +

    Use your keyboard to type math symbols. They will be typeset using the TeX math layout + rules. +

    +

    Press alt/option V to add a root. Use ^ for exponents.

    +

    Edit and navigate formulas using arrow keys. Most of the keyboard shortcuts you would + use to edit a text field work as well. +

    +

    Get started with this basic example.

    Try it  View source  @@ -29,24 +37,34 @@

    - Customization

    + Shortcuts + +

    To speed up math entry, you can define some inline shortcuts + for common functions or operations for your app, on top of the + standard built-in ones (like "pi", "cos", etc...)

    -

    Multiple mathfields with some customization.

    +

    + You can also intercept keystrokes to implement keyboard shortcuts. +

    - Try it  - View source  + Try it  + View source 

    - Shortcuts

    + Multiple Mathfields -

    How to customize keystroke and inline shortcuts.

    +

    You can have multiple mathfields on the page. They are navigable and accessible.

    +

    You can customize how each mathfield behaves with regard to their onscreen virtual keyboard: + always off, if you want to implement your own UI, manual, if you + want to display a toggle to show or hide the keyboard, or onfocus + so that the keyboard appears as soon as the mathfield is focused.

    - Try it  - View source  + Try it  + View source 
    @@ -56,7 +74,10 @@

    VueJS

    -

    How to use the MathLive VueJS wrapper

    +

    MathLive uses native Javascript and does not depend on third-party libraries

    +

    You can use it with the framewok of your choice. This example provides + a wrapper for VueJS. Others are available for React. +

    Try it  View source  @@ -69,7 +90,8 @@

    MathJS

    -

    How to use MathLive and the MathJS library to evaluate formulas

    +

    The MathJS library provides an extensive set of numeric and symbolic calculations

    +

    MathLives provides as output a Math JSON data structure that can be passed to MathJS to perform calculations.

    Try it  View source  @@ -95,7 +117,12 @@

    Speech

    -

    Using and customizing math to speech, including "karaoke" mode (read aloud).

    +

    MathLive has built-in support for speech output, including a "karaoke" mode (read aloud).

    +

    The conversion to speech can be done using the built-in MathLive rule engine. + For more comprehensive configuration, and to support additional languages, the + SRE from Volker Sorge can also be used. +

    +

    The native speech synthesizer can be used, or for higher quality output, the Amazon speech synthesizer.

    Try it  View source  @@ -108,7 +135,10 @@

    Virtual Keyboards

    -

    Using, configuring and customizing virtual keyboards.

    +

    On-screen virtual keyboards make entry of math symbols easier.

    +

    They are a necesity on mobile devices, but can be convenient on desktops and laptops as well.

    +

    MathLive provides several built-in keyboards, but you can also define + your own depending on your needs.

    Try it  View source  @@ -121,7 +151,9 @@

    Peformance

    -

    Some basic performance demo.

    +

    MathLive is fast and its equation display engine can be used to render math content, + including dynamically updating one. +

    Try it  View source  diff --git a/examples/mathjs/math.min.js b/examples/mathjs/math.min.js index c90069727..a267473b0 100644 --- a/examples/mathjs/math.min.js +++ b/examples/mathjs/math.min.js @@ -24,7 +24,7 @@ * License for the specific language governing permissions and limitations under * the License. */ -!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.math=t():e.math=t()}(this,function(){return function(r){var n={};function i(e){if(n[e])return n[e].exports;var t=n[e]={i:e,l:!1,exports:{}};return r[e].call(t.exports,t,t.exports,i),t.l=!0,t.exports}return i.m=r,i.c=n,i.d=function(e,t,r){i.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},i.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},i.t=function(t,e){if(1&e&&(t=i(t)),8&e)return t;if(4&e&&"object"==typeof t&&t&&t.__esModule)return t;var r=Object.create(null);if(i.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:t}),2&e&&"string"!=typeof t)for(var n in t)i.d(r,n,function(e){return t[e]}.bind(null,n));return r},i.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return i.d(t,"a",t),t},i.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},i.p="",i(i.s=154)}([function(e,t,r){"use strict";e.exports=function t(e,r,n){return e&&"function"==typeof e.map?e.map(function(e){return t(e,r,n)}):r(e)}},function(e,t,r){"use strict";t.name="matrix",t.factory=function(n,e,t,r){var i=r("matrix",{"":function(){return o([])},string:function(e){return o([],e)},"string, string":function(e,t){return o([],e,t)},Array:function(e){return o(e)},Matrix:function(e){return o(e,e.storage())},"Array | Matrix, string":o,"Array | Matrix, string, string":o});return i.toTex={0:"\\begin{bmatrix}\\end{bmatrix}",1:"\\left(${args[0]}\\right)",2:"\\left(${args[0]}\\right)"},i;function o(e,t,r){return new(n.Matrix.storage(t||"default"))(e,r)}}},function(e,t,r){"use strict";r.r(t),r.d(t,"size",function(){return l}),r.d(t,"validate",function(){return p}),r.d(t,"validateIndex",function(){return m}),r.d(t,"resize",function(){return h}),r.d(t,"reshape",function(){return d}),r.d(t,"squeeze",function(){return y}),r.d(t,"unsqueeze",function(){return g}),r.d(t,"flatten",function(){return v}),r.d(t,"map",function(){return x}),r.d(t,"forEach",function(){return b}),r.d(t,"filter",function(){return w}),r.d(t,"filterRegExp",function(){return N}),r.d(t,"join",function(){return M}),r.d(t,"identify",function(){return E}),r.d(t,"generalize",function(){return A});var n=r(3),i=r.n(n),o=r(9),a=r.n(o),s=r(8),u=r.n(s),c=r(55),f=r.n(c);function l(e){for(var t=[];Array.isArray(e);)t.push(e.length),e=e[0];return t}function p(e,t){if(0===t.length){if(Array.isArray(e))throw new u.a(e.length,0)}else!function e(t,r,n){var i,o=t.length;if(o!==r[n])throw new u.a(o,r[n]);if(n")}(e,t,0)}function m(e,t){if(!i.a.isNumber(e)||!i.a.isInteger(e))throw new TypeError("Index must be an integer (value: "+e+")");if(e<0||"number"==typeof t&&t<=e)throw new f.a(e,t)}function h(e,t,r){if(!Array.isArray(e)||!Array.isArray(t))throw new TypeError("Array expected");if(0===t.length)throw new Error("Resizing to scalar is not supported");return t.forEach(function(e){if(!i.a.isNumber(e)||!i.a.isInteger(e)||e<0)throw new TypeError("Invalid size, must contain positive integers (size: "+a.a.format(t)+")")}),function e(t,r,n,i){var o;var a;var s=t.length;var u=r[n];var c=Math.min(s,u);t.length=u;if(ni.length&&(i=i.concat(m(t-i.length)));else{var a=0<=n?n:Math.abs(o);i.length-1=i)return p.toExponential(e,t);var a=t?p.roundDigits(o,t):o,s=a.coefficients,u=a.exponent;s.lengtht&&5<=n.splice(t,n.length-t)[0]){var i=t-1;for(n[i]++;10===n[i];)n.pop(),0===i&&(n.unshift(0),r.exponent++,i++),n[--i]++}return r},p.digits=function(e){return e.toExponential().replace(/e.*$/,"").replace(/^0\.?0*|\./,"").length},p.DBL_EPSILON=Number.EPSILON||2220446049250313e-31,p.nearlyEqual=function(e,t,r){if(null==r)return e===t;if(e===t)return!0;if(isNaN(e)||isNaN(t))return!1;if(isFinite(e)&&isFinite(t)){var n=Math.abs(e-t);return n>",rightLogShift:">>>",equal:"=",unequal:"\\neq",smaller:"<",larger:">",smallerEq:"\\leq",largerEq:"\\geq",bitAnd:"\\&",bitXor:"\\underline{|}",bitOr:"|",and:"\\wedge",xor:"\\veebar",or:"\\vee"},r.defaultTemplate="\\mathrm{${name}}\\left(${args}\\right)";var i={deg:"^\\circ"};r.escape=function(e){return n(e,{preserveFormatting:!0})},r.toSymbol=function(e,t){return(t=void 0!==t&&t)?i.hasOwnProperty(e)?i[e]:"\\mathrm{"+r.escape(e)+"}":r.symbols.hasOwnProperty(e)?r.symbols[e]:r.escape(e)}},function(e,o,t){"use strict";function n(e){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}var i=t(79);o.clone=function t(e){var r=n(e);if("number"===r||"string"===r||"boolean"===r||null==e)return e;if("function"==typeof e.clone)return e.clone();if(Array.isArray(e))return e.map(function(e){return t(e)});if(e instanceof Date)return new Date(e.valueOf());if(i(e))return e;if(e instanceof RegExp)throw new TypeError("Cannot clone "+e);return o.map(e,t)},o.map=function(e,t){var r={};for(var n in e)o.hasOwnProperty(e,n)&&(r[n]=t(e[n]));return r},o.extend=function(e,t){for(var r in t)o.hasOwnProperty(t,r)&&(e[r]=t[r]);return e},o.deepExtend=function e(t,r){if(Array.isArray(r))throw new TypeError("Arrays are not supported by deepExtend");for(var n in r)if(o.hasOwnProperty(r,n))if(r[n]&&r[n].constructor===Object)void 0===t[n]&&(t[n]={}),t[n].constructor===Object?e(t[n],r[n]):t[n]=r[n];else{if(Array.isArray(r[n]))throw new TypeError("Arrays are not supported by deepExtend");t[n]=r[n]}return t},o.deepEqual=function(e,t){var r,n,i;if(Array.isArray(e)){if(!Array.isArray(t))return!1;if(e.length!==t.length)return!1;for(n=0,i=e.length;n/g,">")}},function(e,t,l){"use strict";var p=l(5).extend,m=l(2);t.name="multiply",t.factory=function(n,e,t,R){var r=l(4),i=t(l(1)),U=t(l(17)),q=t(l(21)),I=t(l(11)),o=t(l(20)),a=t(l(6)),b=n.DenseMatrix,D=n.SparseMatrix,s=R("multiply",p({"Array, Array":function(e,t){u(m.size(e),m.size(t));var r=s(i(e),i(t));return n.isMatrix(r)?r.valueOf():r},"Matrix, Matrix":function(e,t){var r=e.size(),n=t.size();return u(r,n),1===r.length?1===n.length?function(e,t,r){if(0===r)throw new Error("Cannot multiply two empty vectors");var n,i=e._data,o=e._datatype,a=t._data,s=t._datatype,u=U,c=q;o&&s&&o===s&&"string"==typeof o&&(n=o,u=R.find(U,[n,n]),c=R.find(q,[n,n]));for(var f=c(i[0],a[0]),l=1;lo)for(var u=o-1,c=a.length;ui.re?1:n.rei.im?1:n.imt.length?1:e.length>=1,i=s(i,i);return n}function m(e,t){return n(p(e.valueOf(),t))}return f.toTex={2:"\\left(${args[0]}\\right)".concat(r.operators.pow,"{${args[1]}}")},f}},function(e,t,o){"use strict";var u=o(3).isInteger,c=o(2).resize;t.name="zeros",t.factory=function(a,t,e,r){var s=e(o(1)),n=r("zeros",{"":function(){return"Array"===t.matrix?i([]):i([],"default")},"...number | BigNumber | string":function(e){return"string"!=typeof e[e.length-1]?"Array"===t.matrix?i(e):i(e,"default"):i(e,e.pop())},Array:i,Matrix:function(e){var t=e.storage();return i(e.valueOf(),t)},"Array | Matrix, string":function(e,t){return i(e.valueOf(),t)}});return n.toTex=void 0,n;function i(e,t){var n,r=(n=!1,e.forEach(function(e,t,r){a.isBigNumber(e)&&(n=!0,r[t]=e.toNumber())}),n?new a.BigNumber(0):0);if(e.forEach(function(e){if("number"!=typeof e||!u(e)||e<0)throw new Error("Parameters in function zeros must be positive integers")}),t){var i=s(t);return 0":!0,"<=":!0,">=":!0,"<<":!0,">>":!0,">>>":!0},E={mod:!0,to:!0,in:!0,and:!0,xor:!0,or:!0,not:!0},A={true:!0,false:!1,null:null,undefined:void 0},S=["NaN","Infinity"];function O(e,t){return e.expression.substr(e.index,t)}function T(e){return O(e,1)}function _(e){e.index++}function C(e){return e.expression.charAt(e.index-1)}function z(e){return e.expression.charAt(e.index+1)}function B(e){for(e.tokenType=N.NULL,e.token="",e.comment="";w.isWhitespace(T(e),e.nestingLevel);)_(e);if("#"===T(e))for(;"\n"!==T(e)&&""!==T(e);)e.comment+=T(e),_(e);if(""!==T(e)){if("\n"===T(e)&&!e.nestingLevel)return e.tokenType=N.DELIMITER,e.token=T(e),void _(e);var t=T(e),r=O(e,2),n=O(e,3);if(3===n.length&&M[n])return e.tokenType=N.DELIMITER,e.token=n,_(e),_(e),void _(e);if(2===r.length&&M[r])return e.tokenType=N.DELIMITER,e.token=r,_(e),void _(e);if(M[t])return e.tokenType=N.DELIMITER,e.token=t,void _(e);if(w.isDigitDot(t)){if(e.tokenType=N.NUMBER,"."===T(e))e.token+=T(e),_(e),w.isDigit(T(e))||(e.tokenType=N.DELIMITER);else{for(;w.isDigit(T(e));)e.token+=T(e),_(e);w.isDecimalMark(T(e),z(e))&&(e.token+=T(e),_(e))}for(;w.isDigit(T(e));)e.token+=T(e),_(e);if("E"===T(e)||"e"===T(e))if(w.isDigit(z(e))||"-"===z(e)||"+"===z(e)){if(e.token+=T(e),_(e),"+"!==T(e)&&"-"!==T(e)||(e.token+=T(e),_(e)),!w.isDigit(T(e)))throw re(e,'Digit expected, got "'+T(e)+'"');for(;w.isDigit(T(e));)e.token+=T(e),_(e);if(w.isDecimalMark(T(e),z(e)))throw re(e,'Digit expected, got "'+T(e)+'"')}else if("."===z(e))throw _(e),re(e,'Digit expected, got "'+T(e)+'"')}else{if(!w.isAlpha(T(e),C(e),z(e))){for(e.tokenType=N.UNKNOWN;""!==T(e);)e.token+=T(e),_(e);throw re(e,'Syntax error in part "'+e.token+'"')}for(;w.isAlpha(T(e),C(e),z(e))||w.isDigit(T(e));)e.token+=T(e),_(e);E.hasOwnProperty(e.token)?e.tokenType=N.DELIMITER:e.tokenType=N.SYMBOL}}else e.tokenType=N.DELIMITER}function k(e){for(;B(e),"\n"===e.token;);}function I(e){e.nestingLevel++}function P(e){e.nestingLevel--}function R(e,t){var r={extraNodes:{},expression:"",comment:"",index:0,token:"",tokenType:N.NULL,nestingLevel:0,conditionalLevel:null};oe(r,{expression:e,extraNodes:t}),B(r);var n=function(e){var t,r,n=[];for(""!==e.token&&"\n"!==e.token&&";"!==e.token&&((t=U(e)).comment=e.comment);"\n"===e.token||";"===e.token;)0===n.length&&t&&(r=";"!==e.token,n.push({node:t,visible:r})),B(e),"\n"!==e.token&&";"!==e.token&&""!==e.token&&((t=U(e)).comment=e.comment,r=";"!==e.token,n.push({node:t,visible:r}));return 0":"larger","<=":"smallerEq",">=":"largerEq"};n.hasOwnProperty(e.token);){var i={name:e.token,fn:n[e.token]};r.push(i),k(e),t.push(H(e))}return 1===t.length?t[0]:2===t.length?new l(r[0].name,r[0].fn,t):new x(r.map(function(e){return e.fn}),t)}function H(e){var t,r,n,i,o;for(t=$(e),r={"<<":"leftShift",">>":"rightArithShift",">>>":"rightLogShift"};r.hasOwnProperty(e.token);)i=r[n=e.token],k(e),o=[t,$(e)],t=new l(n,i,o);return t}function $(e){var t,r,n,i,o;for(t=G(e),r={to:"to",in:"to"};r.hasOwnProperty(e.token);)i=r[n=e.token],k(e),t="in"===n&&""===e.token?new l("*","multiply",[t,new b("in")],!0):(o=[t,G(e)],new l(n,i,o));return t}function G(e){var t,r=[];if(t=":"===e.token?new d(1):Z(e),":"===e.token&&e.conditionalLevel!==e.nestingLevel){for(r.push(t);":"===e.token&&r.length<3;)k(e),")"===e.token||"]"===e.token||","===e.token||""===e.token?r.push(new b("end")):r.push(Z(e));t=3===r.length?new n(r[0],r[2],r[1]):new n(r[0],r[1])}return t}function Z(e){var t,r,n,i,o;for(t=V(e),r={"+":"add","-":"subtract"};r.hasOwnProperty(e.token);)i=r[n=e.token],k(e),o=[t,V(e)],t=new l(n,i,o);return t}function V(e){var t,r,n,i,o;for(r=t=J(e),n={"*":"multiply",".*":"dotMultiply","/":"divide","./":"dotDivide","%":"mod",mod:"mod"};n.hasOwnProperty(e.token);)o=n[i=e.token],k(e),r=J(e),t=new l(i,o,[t,r]);return t}function J(e){var t,r;for(r=t=W(e);e.tokenType===N.SYMBOL||"in"===e.token&&a.isConstantNode(t)||!(e.tokenType!==N.NUMBER||a.isConstantNode(r)||a.isOperatorNode(r)&&"!"!==r.op)||"("===e.token;)r=W(e),t=new l("*","multiply",[t,r],!0);return t}function W(e){for(var t=Y(e),r=t,n=[];"/"===e.token&&a.isConstantNode(r);){if(n.push(oe({},e)),k(e),e.tokenType!==N.NUMBER){oe(e,n.pop());break}if(n.push(oe({},e)),k(e),e.tokenType!==N.SYMBOL&&"("!==e.token){n.pop(),oe(e,n.pop());break}oe(e,n.pop()),n.pop(),r=Y(e),t=new l("/","divide",[t,r])}return t}function Y(e){var t,r,n,i,o,a,s,u,c={"-":"unaryMinus","+":"unaryPlus","~":"bitNot",not:"not"};return c.hasOwnProperty(e.token)?(n=c[e.token],t=e.token,k(e),r=[Y(e)],new l(t,n,r)):(o=function(e){var t,r,n,i;for(t=function(e){var t,r,n,i,o,a,s,u,c,f=[];if(e.tokenType===N.SYMBOL&&e.extraNodes.hasOwnProperty(e.token)){var l=e.extraNodes[e.token];if(B(e),"("===e.token){if(f=[],I(e),B(e),")"!==e.token)for(f.push(U(e));","===e.token;)B(e),f.push(U(e));if(")"!==e.token)throw re(e,"Parenthesis ) expected");P(e),B(e)}return new l(f)}return(t=e).tokenType===N.SYMBOL||t.tokenType===N.DELIMITER&&t.token in E?(n=t.token,B(t),r=A.hasOwnProperty(n)?new d(A[n]):-1!==S.indexOf(n)?new d(m(n,"number")):new b(n),r=X(t,r)):'"'!==(i=t).token?"'"!==(s=i).token?function(e){var t,r,n,i;if("["!==e.token)return function(e){if("{"!==e.token)return(t=e).tokenType!==N.NUMBER?function(e){var t;if("("!==e.token)return function(e){throw""===e.token?re(e,"Unexpected end of expression"):re(e,"Value expected")}(e);if(I(e),B(e),t=U(e),")"===e.token)return P(e),B(e),t=new g(t),t=X(e,t);throw re(e,"Parenthesis ) expected")}(t):(r=t.token,B(t),new d(m(r,p.number)));var t,r,n;I(e);var i={};do{if(B(e),"}"!==e.token){if('"'===e.token)n=Q(e);else if("'"===e.token)n=K(e);else{if(e.tokenType!==N.SYMBOL)throw re(e,"Symbol or string expected as object key");n=e.token,B(e)}if(":"!==e.token)throw re(e,"Colon : expected after object key");B(e),i[n]=U(e)}}while(","===e.token);if("}"!==e.token)throw re(e,"Comma , or bracket } expected after object value");P(e),B(e);var o=new y(i);return o=X(e,o)}(e);if(I(e),B(e),"]"!==e.token){var o=ee(e);if(";"===e.token){for(n=1,r=[o];";"===e.token;)B(e),r[n]=ee(e),n++;if("]"!==e.token)throw re(e,"End of matrix ] expected");P(e),B(e),i=r[0].items.length;for(var a=1;an[o]&&(n[o]=t[o],i=!0);i&&s(e,n,r)}return(y.prototype=new n).type="DenseMatrix",y.prototype.isDenseMatrix=!0,y.prototype.getDataType=function(){return r(this._data)},y.prototype.storage=function(){return"dense"},y.prototype.datatype=function(){return this._datatype},y.prototype.create=function(e,t){return new y(e,t)},y.prototype.subset=function(e,t,r){switch(arguments.length){case 1:return function(e,t){if(!h.isIndex(t))throw new TypeError("Invalid index");if(t.isScalar())return e.get(t.min());var r=t.size();if(r.length!==e._size.length)throw new p(r.length,e._size.length);for(var n=t.min(),i=t.max(),o=0,a=e._size.length;o");var c=t.max().map(function(e){return e+1});l(e,c,n);var f=o.length;!function r(n,i,o,a,s){var e=s===a-1,t=i.dimension(s);e?t.forEach(function(e,t){N(e),n[e]=o[t[0]]}):t.forEach(function(e,t){N(e),r(n[e],i,o[t[0]],a,s+1)})}(e._data,t,r,f,0)}return e}(this,e,t,r);default:throw new SyntaxError("Wrong number of arguments")}},y.prototype.get=function(e){if(!v(e))throw new TypeError("Array expected");if(e.length!==this._size.length)throw new p(e.length,this._size.length);for(var t=0;t'+t+"":"i"===t?''+t+"":"Infinity"===t?''+t+"":"NaN"===t?''+t+"":"null"===t?''+t+"":"undefined"===t?''+t+"":''+t+""},o.prototype.toJSON=function(){return{mathjs:"SymbolNode",name:this.name}},o.fromJSON=function(e){return new o(e.name)},o.prototype._toTex=function(e){var t=!1;void 0===n[this.name]&&s(this.name)&&(t=!0);var r=c.toSymbol(this.name,t);return"\\"===r[0]?r:" "+r},o}},function(e,t,l){"use strict";var p=l(3).nearlyEqual,m=l(38);t.name="compare",t.factory=function(r,n,e,t){var i=e(l(1)),o=e(l(18)),a=e(l(66)),s=e(l(19)),u=e(l(7)),c=e(l(6)),f=t("compare",{"boolean, boolean":function(e,t){return e===t?0:t=this.max?this.message="Index out of range ("+this.index+" > "+(this.max-1)+")":this.message="Index out of range ("+this.index+")",this.stack=(new Error).stack}(n.prototype=new RangeError).constructor=RangeError,n.prototype.name="IndexError",n.prototype.isIndexError=!0,e.exports=n},function(e,t,r){"use strict";function i(e,t,r,n){if(!(this instanceof i))throw new SyntaxError("Constructor must be called with the new operator");this.fn=e,this.count=t,this.min=r,this.max=n,this.message="Wrong number of arguments in function "+e+" ("+t+" provided, "+r+(null!=n?"-"+n:"")+" expected)",this.stack=(new Error).stack}(i.prototype=new Error).constructor=Error,i.prototype.name="ArgumentsError",i.prototype.isArgumentsError=!0,e.exports=i},function(e,t,s){"use strict";var u=s(9).format,c=s(4).escape;t.name="ConstantNode",t.path="expression.node",t.factory=function(e,t,r,n){var i=r(s(16)),o=r(s(24));function a(e){if(!(this instanceof a))throw new SyntaxError("Constructor must be called with the new operator");if(2===arguments.length)throw new SyntaxError("new ConstantNode(valueStr, valueType) is not supported anymore since math v4.0.0. Use new ConstantNode(value) instead, where value is a non-stringified value.");this.value=e}return(a.prototype=new i).type="ConstantNode",a.prototype.isConstantNode=!0,a.prototype._compile=function(e,t){var r=this.value;return function(){return r}},a.prototype.forEach=function(e){},a.prototype.map=function(e){return this.clone()},a.prototype.clone=function(){return new a(this.value)},a.prototype._toString=function(e){return u(this.value,e)},a.prototype.toHTML=function(e){var t=this._toString(e);switch(o(this.value)){case"number":case"BigNumber":case"Fraction":return''+t+"";case"string":return''+t+"";case"boolean":return''+t+"";case"null":return''+t+"";case"undefined":return''+t+"";default:return''+t+""}},a.prototype.toJSON=function(){return{mathjs:"ConstantNode",value:this.value}},a.fromJSON=function(e){return new a(e.value)},a.prototype._toTex=function(e){var t=this._toString(e);switch(o(this.value)){case"string":return"\\mathtt{"+c(t)+"}";case"number":case"BigNumber":var r=t.toLowerCase().indexOf("e");return-1!==r?t.substring(0,r)+"\\cdot10^{"+t.substring(r+1)+"}":t;case"Fraction":return this.value.toLatex();default:return t}},a}},function(e,t,a){"use strict";var h=a(4),s=a(2).map,f=a(9).escape,u=a(13).isSafeMethod,c=a(13).getSafeProperty,b=a(52);t.name="OperatorNode",t.path="expression.node",t.factory=function(i,e,t,r){var n=t(a(16));function o(e,t,r,n){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if("string"!=typeof e)throw new TypeError('string expected for parameter "op"');if("string"!=typeof t)throw new TypeError('string expected for parameter "fn"');if(!Array.isArray(r)||!r.every(i.isNode))throw new TypeError('Array containing Nodes expected for parameter "args"');this.implicit=!0===n,this.op=e,this.fn=t,this.args=r||[]}function m(i,o,e,t,r){var n,a=b.getPrecedence(i,o),s=b.getAssociativity(i,o);if("all"===o||2)'),"right"===o?''+f(this.op)+""+a:''+f(this.op)+""+a}if(2===n.length){var s=n[0].toHTML(r),u=n[1].toHTML(r);return i[0]&&(s='('+s+')'),i[1]&&(u='('+u+')'),this.implicit&&"OperatorNode:multiply"===this.getIdentifier()&&"hide"===t?s+''+u:s+''+f(this.op)+""+u}var c=n.map(function(e,t){return e=e.toHTML(r),i[t]&&(e='('+e+')'),e});return 2'):c.join(''+f(this.op)+""):''+f(this.fn)+'('+c.join(',')+')'},o.prototype._toTex=function(r){var e=r&&r.parenthesis?r.parenthesis:"keep",t=r&&r.implicit?r.implicit:"hide",n=this.args,i=m(this,e,t,n,!0),o=h.operators[this.fn];if(o=void 0===o?this.op:o,1===n.length){var a=b.getAssociativity(this,e),s=n[0].toTex(r);return i[0]&&(s="\\left(".concat(s,"\\right)")),"right"===a?o+s:s+o}if(2===n.length){var u=n[0],c=u.toTex(r);i[0]&&(c="\\left(".concat(c,"\\right)"));var f,l=n[1].toTex(r);switch(i[1]&&(l="\\left(".concat(l,"\\right)")),f="keep"===e?u.getIdentifier():u.getContent().getIdentifier(),this.getIdentifier()){case"OperatorNode:divide":return o+"{"+c+"}{"+l+"}";case"OperatorNode:pow":switch(c="{"+c+"}",l="{"+l+"}",f){case"ConditionalNode":case"OperatorNode:divide":c="\\left(".concat(c,"\\right)")}break;case"OperatorNode:multiply":if(this.implicit&&"hide"===t)return c+"~"+l}return c+o+l}if(2('+this.content.toHTML(e)+')':this.content.toHTML(e)},o.prototype._toTex=function(e){return!e||e&&!e.parenthesis||e&&"keep"===e.parenthesis?"\\left(".concat(this.content.toTex(e),"\\right)"):this.content.toTex(e)},o}},function(e,t,c){"use strict";function f(e){return(f="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function v(){return(v=Object.assign||function(e){for(var t=1;t'+p(this.fn)+'('+e.join(',')+')'};var u=g.prototype.toTex;return g.prototype.toTex=function(e){var t;return e&&"object"===f(e.handler)&&m(e.handler,this.name)&&(t=e.handler[this.name](this,e)),void 0!==t?t:u.call(this,e)},g.prototype._toTex=function(t){var e,r,n=this.args.map(function(e){return e.toTex(t)});switch(!i[this.name]||"function"!=typeof i[this.name].toTex&&"object"!==f(i[this.name].toTex)&&"string"!=typeof i[this.name].toTex||(e=i[this.name].toTex),f(e)){case"function":r=e(this,t);break;case"string":r=s(e,this,t);break;case"object":switch(f(e[n.length])){case"function":r=e[n.length](this,t);break;case"string":r=s(e[n.length],this,t)}}return void 0!==r?r:s(l.defaultTemplate,this,t)},g.prototype.getIdentifier=function(){return this.type+":"+this.name},g}},function(e,t,s){"use strict";var u=s(30);t.name="inv",t.factory=function(i,e,t,r){var o=t(s(1)),v=t(s(12)),x=t(s(17)),b=t(s(10)),w=t(s(34)),N=t(s(122)),M=t(s(49)),E=t(s(23)),n=r("inv",{"Array | Matrix":function(e){var t=i.isMatrix(e)?e.size():u.array.size(e);switch(t.length){case 1:if(1===t[0])return i.isMatrix(e)?o([v(1,e.valueOf()[0])]):[v(1,e[0])];throw new RangeError("Matrix must be square (size: "+u.string.format(t)+")");case 2:var r=t[0],n=t[1];if(r===n)return i.isMatrix(e)?o(a(e.valueOf(),r,n),e.storage()):a(e,r,n);throw new RangeError("Matrix must be square (size: "+u.string.format(t)+")");default:throw new RangeError("Matrix must be two dimensional (size: "+u.string.format(t)+")")}},any:function(e){return v(1,e)}});function a(e,t,r){var n,i,o,a,s;if(1===t){if(0===(a=e[0][0]))throw Error("Cannot calculate inverse, determinant is zero");return[[v(1,a)]]}if(2===t){var u=N(e);if(0===u)throw Error("Cannot calculate inverse, determinant is zero");return[[v(e[1][1],u),v(w(e[0][1]),u)],[v(w(e[1][0]),u),v(e[0][0],u)]]}var c=e.concat();for(n=0;np&&(p=E(c[n][l]),m=n),n++;if(0===p)throw Error("Cannot calculate inverse, determinant is zero");(n=m)!==l&&(s=c[l],c[l]=c[n],c[n]=s,s=f[l],f[l]=f[n],f[n]=s);var h=c[l],d=f[l];for(n=0;n=n.length)throw new a(t,n.length);return o(e)?e.create(s(e.valueOf(),t,r)):s(e,t,r)}},function(e,t,r){"use strict";e.exports=function(e){return e&&e.constructor.prototype.isBigNumber||!1}},function(e,t,r){"use strict";function o(e){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}var a=r(171),s=r(3).format,u=r(3).isNumber;t.name="Complex",t.path="type",t.factory=function(i,e,t,r,n){return a.prototype.type="Complex",a.prototype.isComplex=!0,a.prototype.toJSON=function(){return{mathjs:"Complex",re:this.re,im:this.im}},a.prototype.toPolar=function(){return{r:this.abs(),phi:this.arg()}},a.prototype.format=function(e){var t=this.im,r=this.re,n=s(this.re,e),i=s(this.im,e),o=u(e)?e:e?e.precision:null;if(null!==o){var a=Math.pow(10,-o);Math.abs(r/t)t.re?1:e.ret.im?1:e.im");if(2!==a.length)throw SyntaxError("Could not parse rule: "+n);n={l:a[0],r:a[1]};case"object":if(i={l:M(c(n.l)),r:M(c(n.r))},n.context&&(i.evaluate=n.context),n.evaluate&&(i.evaluate=c(n.evaluate)),x(i.l)){var s=N(i.l),u=new g("_p"+A++);i.expanded={},i.expanded.l=s([i.l.clone(),u]),f(i.expanded.l),b(i.expanded.l),i.expanded.r=s([i.r,u])}break;case"function":i=n;break;default:throw TypeError("Unsupported type of rule: "+o)}t.push(i)}return t}(t);for(var i=u(e,r),o={},a=(i=M(i)).toString({parenthesis:"all"});!o[a];){o[a]=!0;for(var s=A=0;sc)for(s-=c;s--;)u+="0";else s>1,f[m]&=1)}return f.reverse()}e.exports=function(e,t,r){var n,i,o,a,s,u=e.constructor,c=+(e.s<0),f=+(t.s<0);if(c){n=w(b(e));for(var l=0;l>1)*e(n+1,r)}},function(e,t,u){"use strict";var c=u(3).isInteger;t.name="partitionSelect",t.factory=function(n,e,t,r){var f=t(u(51)),l=t(u(77)),i=t(u(54));function o(e,t){return-i(e,t)}return r("partitionSelect",{"Array | Matrix, number":function(e,t){return a(e,t,i)},"Array | Matrix, number, string":function(e,t,r){if("asc"===r)return a(e,t,i);if("desc"===r)return a(e,t,o);throw new Error('Compare string must be "asc" or "desc"')},"Array | Matrix, number, function":a});function a(e,t,r){if(!c(t)||t<0)throw new Error("k must be a non-negative integer");if(n.isMatrix(e)){if(1=e.length)throw new Error("k out of bounds");for(var n=0;n15 significant digits to BigNumber (value: "+e+"). Use function bignumber(x) to convert to BigNumber.");return new r.BigNumber(e)}},{from:"number",to:"Complex",convert:function(e){return new r.Complex(e,0)}},{from:"number",to:"string",convert:function(e){return e+""}},{from:"BigNumber",to:"Complex",convert:function(e){return new r.Complex(e.toNumber(),0)}},{from:"Fraction",to:"BigNumber",convert:function(e){throw new TypeError("Cannot implicitly convert a Fraction to BigNumber or vice versa. Use function bignumber(x) to convert to BigNumber or fraction(x) to convert to Fraction.")}},{from:"Fraction",to:"Complex",convert:function(e){return new r.Complex(e.valueOf(),0)}},{from:"number",to:"Fraction",convert:function(e){if(new r.Fraction(e).valueOf()!==e)throw new TypeError("Cannot implicitly convert a number to a Fraction when there will be a loss of precision (value: "+e+"). Use function fraction(x) to convert to Fraction.");return new r.Fraction(e)}},{from:"string",to:"number",convert:function(e){var t=Number(e);if(isNaN(t))throw new Error('Cannot convert "'+e+'" to a number');return t}},{from:"string",to:"BigNumber",convert:function(t){try{return new r.BigNumber(t)}catch(e){throw new Error('Cannot convert "'+t+'" to BigNumber')}}},{from:"string",to:"Fraction",convert:function(t){try{return new r.Fraction(t)}catch(e){throw new Error('Cannot convert "'+t+'" to Fraction')}}},{from:"string",to:"Complex",convert:function(t){try{return new r.Complex(t)}catch(e){throw new Error('Cannot convert "'+t+'" to Complex')}}},{from:"boolean",to:"number",convert:function(e){return+e}},{from:"boolean",to:"BigNumber",convert:function(e){return new r.BigNumber(+e)}},{from:"boolean",to:"Fraction",convert:function(e){return new r.Fraction(+e)}},{from:"boolean",to:"string",convert:function(e){return+e}},{from:"Array",to:"Matrix",convert:function(e){return new r.DenseMatrix(e)}},{from:"Matrix",to:"Array",convert:function(e){return e.valueOf()}}],e}},function(e,t,r){"use strict";var n=r(158);t.mixin=function(e){var t=new n;return e.on=t.on.bind(t),e.off=t.off.bind(t),e.once=t.once.bind(t),e.emit=t.emit.bind(t),e}},function(e,t,r){"use strict";var o=r(0);t.name="bignumber",t.factory=function(t,e,r,n){var i=n("bignumber",{"":function(){return new t.BigNumber(0)},number:function(e){return new t.BigNumber(e+"")},string:function(e){return new t.BigNumber(e)},BigNumber:function(e){return e},Fraction:function(e){return new t.BigNumber(e.n).div(e.d).times(e.s)},null:function(e){return new t.BigNumber(0)},"Array | Matrix":function(e){return o(e,i)}});return i.toTex={0:"0",1:"\\left(${args[0]}\\right)"},i}},function(e,t,r){"use strict";var i=r(3);t.name="Range",t.path="type",t.factory=function(a,e,t,r){function s(e,t,r){if(!(this instanceof s))throw new SyntaxError("Constructor must be called with the new operator");var n=null!=e,i=null!=t,o=null!=r;if(n)if(a.isBigNumber(e))e=e.toNumber();else if("number"!=typeof e)throw new TypeError("Parameter start must be a number");if(i)if(a.isBigNumber(t))t=t.toNumber();else if("number"!=typeof t)throw new TypeError("Parameter end must be a number");if(o)if(a.isBigNumber(r))r=r.toNumber();else if("number"!=typeof r)throw new TypeError("Parameter step must be a number");this.start=n?parseFloat(e):0,this.end=i?parseFloat(t):0,this.step=o?parseFloat(r):1}return s.prototype.type="Range",s.prototype.isRange=!0,s.parse=function(e){if("string"!=typeof e)return null;var t=e.split(":").map(function(e){return parseFloat(e)});if(t.some(function(e){return isNaN(e)}))return null;switch(t.length){case 2:return new s(t[0],t[1]);case 3:return new s(t[0],t[2],t[1]);default:return null}},s.prototype.clone=function(){return new s(this.start,this.end,this.step)},s.prototype.size=function(){var e=0,t=this.start,r=this.step,n=this.end-t;return i.sign(r)===i.sign(n)?e=Math.ceil(n/r):0===n&&(e=0),isNaN(e)&&(e=0),[e]},s.prototype.min=function(){var e=this.size()[0];return 0)'),t+this.index.toHTML(e)},o.prototype._toTex=function(e){var t=this.object.toTex(e);return a(this.object)&&(t="\\left(' + object + '\\right)"),t+this.index.toTex(e)},o.prototype.toJSON=function(){return{mathjs:"AccessorNode",object:this.object,index:this.index}},o.fromJSON=function(e){return new o(e.object,e.index)},o}},function(e,t,r){"use strict";e.exports={end:!0}},function(e,t,o){"use strict";function a(e){return(a="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}var s=o(35).transform,u=o(13).getSafeProperty;t.factory=function(e,t,r,n){var i=r(o(22));return function(e,t){try{if(Array.isArray(e))return i(e,t);if(e&&"function"==typeof e.subset)return e.subset(t);if("string"==typeof e)return i(e,t);if("object"!==a(e))throw new TypeError("Cannot apply index: unsupported type of object");if(!t.isObjectProperty())throw new TypeError("Cannot apply a numeric index as object property");return u(e,t.getObjectProperty())}catch(e){throw s(e)}}}},function(e,t,a){"use strict";var s=a(2).map;t.name="ArrayNode",t.path="expression.node",t.factory=function(r,e,t,n){var i=t(a(16));function o(e){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if(this.items=e||[],!Array.isArray(this.items)||!this.items.every(r.isNode))throw new TypeError("Array containing Nodes expected");var t=function(){throw new Error("Property `ArrayNode.nodes` is deprecated, use `ArrayNode.items` instead")};Object.defineProperty(this,"nodes",{get:t,set:t})}return(o.prototype=new i).type="ArrayNode",o.prototype.isArrayNode=!0,o.prototype._compile=function(t,r){var e=s(this.items,function(e){return e._compile(t,r)});if("Array"===t.config().matrix)return function(t,r,n){return s(e,function(e){return e(t,r,n)})};var i=t.matrix;return function(t,r,n){return i(s(e,function(e){return e(t,r,n)}))}},o.prototype.forEach=function(e){for(var t=0;t['+this.items.map(function(e){return e.toHTML(t)}).join(',')+']'},o.prototype._toTex=function(t){var r="\\begin{bmatrix}";return this.items.forEach(function(e){e.items?r+=e.items.map(function(e){return e.toTex(t)}).join("&"):r+=e.toTex(t),r+="\\\\"}),r+="\\end{bmatrix}"},o}},function(e,t,u){"use strict";var d=u(13).getSafeProperty,y=u(13).setSafeProperty;t.name="AssignmentNode",t.path="expression.node",t.factory=function(n,e,t,r){var i=t(u(16)),m=t(u(198)),h=t(u(109)),o=u(52);function a(e,t,r){if(!(this instanceof a))throw new SyntaxError("Constructor must be called with the new operator");if(this.object=e,this.index=r?t:null,this.value=r||t,!n.isSymbolNode(e)&&!n.isAccessorNode(e))throw new TypeError('SymbolNode or AccessorNode expected as "object"');if(n.isSymbolNode(e)&&"end"===e.name)throw new Error('Cannot assign to symbol "end"');if(this.index&&!n.isIndexNode(this.index))throw new TypeError('IndexNode expected as "index"');if(!n.isNode(this.value))throw new TypeError('Node expected as "value"');Object.defineProperty(this,"name",{get:function(){return this.index?this.index.isObjectProperty()?this.index.getObjectProperty():"":this.object.name||""}.bind(this),set:function(){throw new Error("Cannot assign a new name, name is read-only")}})}function s(e,t){t||(t="keep");var r=o.getPrecedence(e,t),n=o.getPrecedence(e.value,t);return"all"===t||null!==n&&n<=r}return(a.prototype=new i).type="AssignmentNode",a.prototype.isAssignmentNode=!0,a.prototype._compile=function(e,t){var a=this.object._compile(e,t),u=this.index?this.index._compile(e,t):null,c=this.value._compile(e,t),s=this.object.name;if(this.index){if(this.index.isObjectProperty()){var o=this.index.getObjectProperty();return function(e,t,r){var n=a(e,t,r),i=c(e,t,r);return y(n,o,i)}}if(n.isSymbolNode(this.object))return function(e,t,r){var n=a(e,t,r),i=c(e,t,r),o=u(e,t,n);return y(e,s,m(n,o,i)),i};var f=this.object.object._compile(e,t);if(this.object.index.isObjectProperty()){var l=this.object.index.getObjectProperty();return function(e,t,r){var n=f(e,t,r),i=d(n,l),o=u(e,t,i),a=c(e,t,r);return y(n,l,m(i,o,a)),a}}var p=this.object.index._compile(e,t);return function(e,t,r){var n=f(e,t,r),i=p(e,t,n),o=h(n,i),a=u(e,t,o),s=c(e,t,r);return m(n,i,m(o,a,s)),s}}if(!n.isSymbolNode(this.object))throw new TypeError("SymbolNode expected as object");return function(e,t,r){return y(e,s,c(e,t,r))}},a.prototype.forEach=function(e){e(this.object,"object",this),this.index&&e(this.index,"index",this),e(this.value,"value",this)},a.prototype.map=function(e){return new a(this._ifNode(e(this.object,"object",this)),this.index?this._ifNode(e(this.index,"index",this)):null,this._ifNode(e(this.value,"value",this)))},a.prototype.clone=function(){return new a(this.object,this.index,this.value)},a.prototype._toString=function(e){var t=this.object.toString(e),r=this.index?this.index.toString(e):"",n=this.value.toString(e);return s(this,e&&e.parenthesis)&&(n="("+n+")"),t+r+" = "+n},a.prototype.toJSON=function(){return{mathjs:"AssignmentNode",object:this.object,index:this.index,value:this.value}},a.fromJSON=function(e){return new a(e.object,e.index,e.value)},a.prototype.toHTML=function(e){var t=this.object.toHTML(e),r=this.index?this.index.toHTML(e):"",n=this.value.toHTML(e);return s(this,e&&e.parenthesis)&&(n='('+n+')'),t+r+'='+n},a.prototype._toTex=function(e){var t=this.object.toTex(e),r=this.index?this.index.toTex(e):"",n=this.value.toTex(e);return s(this,e&&e.parenthesis)&&(n="\\left(".concat(n,"\\right)")),t+r+":="+n},a}},function(e,t,s){"use strict";var u=s(2).forEach,c=s(2).map;t.name="BlockNode",t.path="expression.node",t.factory=function(n,e,t,r){var i=t(s(16)),a=t(s(102));function o(e){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if(!Array.isArray(e))throw new Error("Array expected");this.blocks=e.map(function(e){var t=e&&e.node,r=!e||void 0===e.visible||e.visible;if(!n.isNode(t))throw new TypeError('Property "node" must be a Node');if("boolean"!=typeof r)throw new TypeError('Property "visible" must be a boolean');return{node:t,visible:r}})}return(o.prototype=new i).type="BlockNode",o.prototype.isBlockNode=!0,o.prototype._compile=function(t,r){var e=c(this.blocks,function(e){return{eval:e.node._compile(t,r),visible:e.visible}});return function(r,n,i){var o=[];return u(e,function(e){var t=e.eval(r,n,i);e.visible&&o.push(t)}),new a(o)}},o.prototype.forEach=function(e){for(var t=0;t;')}).join('
    ')},o.prototype._toTex=function(t){return this.blocks.map(function(e){return e.node.toTex(t)+(e.visible?"":";")}).join("\\;\\;\n")},o}},function(e,t,o){"use strict";var c=o(52);t.name="ConditionalNode",t.path="expression.node",t.factory=function(a,e,t,r){var n=t(o(16)),s=t(o(24));function i(e,t,r){if(!(this instanceof i))throw new SyntaxError("Constructor must be called with the new operator");if(!a.isNode(e))throw new TypeError("Parameter condition must be a Node");if(!a.isNode(t))throw new TypeError("Parameter trueExpr must be a Node");if(!a.isNode(r))throw new TypeError("Parameter falseExpr must be a Node");this.condition=e,this.trueExpr=t,this.falseExpr=r}return(i.prototype=new n).type="ConditionalNode",i.prototype.isConditionalNode=!0,i.prototype._compile=function(e,t){var n=this.condition._compile(e,t),i=this.trueExpr._compile(e,t),o=this.falseExpr._compile(e,t);return function(e,t,r){return function(e){if("number"==typeof e||"boolean"==typeof e||"string"==typeof e)return!!e;if(e){if(a.isBigNumber(e))return!e.isZero();if(a.isComplex(e))return!(!e.re&&!e.im);if(a.isUnit(e))return!!e.value}if(null!=e)throw new TypeError('Unsupported type of condition "'+s(e)+'"');return!1}(n(e,t,r))?i(e,t,r):o(e,t,r)}},i.prototype.forEach=function(e){e(this.condition,"condition",this),e(this.trueExpr,"trueExpr",this),e(this.falseExpr,"falseExpr",this)},i.prototype.map=function(e){return new i(this._ifNode(e(this.condition,"condition",this)),this._ifNode(e(this.trueExpr,"trueExpr",this)),this._ifNode(e(this.falseExpr,"falseExpr",this)))},i.prototype.clone=function(){return new i(this.condition,this.trueExpr,this.falseExpr)},i.prototype._toString=function(e){var t=e&&e.parenthesis?e.parenthesis:"keep",r=c.getPrecedence(this,t),n=this.condition.toString(e),i=c.getPrecedence(this.condition,t);("all"===t||"OperatorNode"===this.condition.type||null!==i&&i<=r)&&(n="("+n+")");var o=this.trueExpr.toString(e),a=c.getPrecedence(this.trueExpr,t);("all"===t||"OperatorNode"===this.trueExpr.type||null!==a&&a<=r)&&(o="("+o+")");var s=this.falseExpr.toString(e),u=c.getPrecedence(this.falseExpr,t);return("all"===t||"OperatorNode"===this.falseExpr.type||null!==u&&u<=r)&&(s="("+s+")"),n+" ? "+o+" : "+s},i.prototype.toJSON=function(){return{mathjs:"ConditionalNode",condition:this.condition,trueExpr:this.trueExpr,falseExpr:this.falseExpr}},i.fromJSON=function(e){return new i(e.condition,e.trueExpr,e.falseExpr)},i.prototype.toHTML=function(e){var t=e&&e.parenthesis?e.parenthesis:"keep",r=c.getPrecedence(this,t),n=this.condition.toHTML(e),i=c.getPrecedence(this.condition,t);("all"===t||"OperatorNode"===this.condition.type||null!==i&&i<=r)&&(n='('+n+')');var o=this.trueExpr.toHTML(e),a=c.getPrecedence(this.trueExpr,t);("all"===t||"OperatorNode"===this.trueExpr.type||null!==a&&a<=r)&&(o='('+o+')');var s=this.falseExpr.toHTML(e),u=c.getPrecedence(this.falseExpr,t);return("all"===t||"OperatorNode"===this.falseExpr.type||null!==u&&u<=r)&&(s='('+s+')'),n+'?'+o+':'+s},i.prototype._toTex=function(e){return"\\begin{cases} {"+this.trueExpr.toTex(e)+"}, &\\quad{\\text{if }\\;"+this.condition.toTex(e)+"}\\\\{"+this.falseExpr.toTex(e)+"}, &\\quad{\\text{otherwise}}\\end{cases}"},i}},function(e,t,a){"use strict";var s=a(108),u=a(9).escape,l=a(2).forEach,p=a(2).join,c=a(4),m=a(52),h=a(13).setSafeProperty;t.name="FunctionAssignmentNode",t.path="expression.node",t.factory=function(n,e,t,f){var r=t(a(16));function i(e,t,r){if(!(this instanceof i))throw new SyntaxError("Constructor must be called with the new operator");if("string"!=typeof e)throw new TypeError('String expected for parameter "name"');if(!Array.isArray(t))throw new TypeError('Array containing strings or objects expected for parameter "params"');if(!n.isNode(r))throw new TypeError('Node expected for parameter "expr"');if(e in s)throw new Error('Illegal function name, "'+e+'" is a reserved keyword');this.name=e,this.params=t.map(function(e){return e&&e.name||e}),this.types=t.map(function(e){return e&&e.type||"any"}),this.expr=r}function o(e,t){var r=m.getPrecedence(e,t),n=m.getPrecedence(e.expr,t);return"all"===t||null!==n&&n<=r}return(i.prototype=new r).type="FunctionAssignmentNode",i.prototype.isFunctionAssignmentNode=!0,i.prototype._compile=function(e,t){var r=Object.create(t);l(this.params,function(e){r[e]=!0});var o=this.expr._compile(e,r),a=this.name,s=this.params,u=p(this.types,","),c=a+"("+p(this.params,", ")+")";return function(r,n,i){var e={};e[u]=function(){for(var e=Object.create(n),t=0;t'+u(this.params[n])+"");var i=this.expr.toHTML(e);return o(this,t)&&(i='('+i+')'),''+u(this.name)+'('+r.join(',')+')='+i},i.prototype._toTex=function(e){var t=e&&e.parenthesis?e.parenthesis:"keep",r=this.expr.toTex(e);return o(this,t)&&(r="\\left(".concat(r,"\\right)")),"\\mathrm{"+this.name+"}\\left("+this.params.map(c.toSymbol).join(",")+"\\right):="+r},i}},function(e,t,s){"use strict";var u=s(2).map,c=s(9).escape;t.name="IndexNode",t.path="expression.node",t.factory=function(h,e,t,r){var n=t(s(16)),i=t(s(101)),o=Array.isArray;function a(e,t){if(!(this instanceof a))throw new SyntaxError("Constructor must be called with the new operator");if(this.dimensions=e,this.dotNotation=t||!1,!o(e)||!e.every(h.isNode))throw new TypeError('Array containing Nodes expected for parameter "dimensions"');if(this.dotNotation&&!this.isObjectProperty())throw new Error("dotNotation only applicable for object properties");var r=function(){throw new Error("Property `IndexNode.object` is deprecated, use `IndexNode.fn` instead")};Object.defineProperty(this,"object",{get:r,set:r})}function d(e,t,r){return new i(h.isBigNumber(e)?e.toNumber():e,h.isBigNumber(t)?t.toNumber():t,h.isBigNumber(r)?r.toNumber():r)}return(a.prototype=new n).type="IndexNode",a.prototype.isIndexNode=!0,a.prototype._compile=function(p,m){var i=u(this.dimensions,function(e,o){if(h.isRangeNode(e)){if(e.needsEnd()){var t=Object.create(m);t.end=!0;var a=e.start._compile(p,t),s=e.end._compile(p,t),u=e.step?e.step._compile(p,t):function(){return 1};return function(e,t,r){var n=p.size(r).valueOf(),i=Object.create(t);return i.end=n[o],d(a(e,i,r),s(e,i,r),u(e,i,r))}}var n=e.start._compile(p,m),i=e.end._compile(p,m),c=e.step?e.step._compile(p,m):function(){return 1};return function(e,t,r){return d(n(e,t,r),i(e,t,r),c(e,t,r))}}if(h.isSymbolNode(e)&&"end"===e.name){var r=Object.create(m);r.end=!0;var f=e._compile(p,r);return function(e,t,r){var n=p.size(r).valueOf(),i=Object.create(t);return i.end=n[o],f(e,i,r)}}var l=e._compile(p,m);return function(e,t,r){return l(e,t,r)}});return function(t,r,n){var e=u(i,function(e){return e(t,r,n)});return p.index.apply(p,e)}},a.prototype.forEach=function(e){for(var t=0;t.'+c(this.getObjectProperty())+"":'['+t.join(',')+']'},a.prototype._toTex=function(t){var e=this.dimensions.map(function(e){return e.toTex(t)});return this.dotNotation?"."+this.getObjectProperty():"_{"+e.join(",")+"}"},a}},function(e,t,a){"use strict";function s(e){return(s="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}var u=a(9).stringify,c=a(9).escape,f=a(13).isSafeProperty,l=a(5).hasOwnProperty;t.name="ObjectNode",t.path="expression.node",t.factory=function(r,e,t,n){var i=t(a(16));function o(t){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if(this.properties=t||{},t&&("object"!==s(t)||!Object.keys(t).every(function(e){return r.isNode(t[e])})))throw new TypeError("Object containing Nodes expected")}return(o.prototype=new i).type="ObjectNode",o.prototype.isObjectNode=!0,o.prototype._compile=function(e,t){var o={};for(var r in this.properties)if(l(this.properties,r)){var n=u(r),i=JSON.parse(n);if(!f(this.properties,i))throw new Error('No access to property "'+i+'"');o[i]=this.properties[r]._compile(e,t)}return function(e,t,r){var n={};for(var i in o)l(o,i)&&(n[i]=o[i](e,t,r));return n}},o.prototype.forEach=function(e){for(var t in this.properties)this.properties.hasOwnProperty(t)&&e(this.properties[t],"properties["+u(t)+"]",this)},o.prototype.map=function(e){var t={};for(var r in this.properties)this.properties.hasOwnProperty(r)&&(t[r]=this._ifNode(e(this.properties[r],"properties["+u(r)+"]",this)));return new o(t)},o.prototype.clone=function(){var e={};for(var t in this.properties)this.properties.hasOwnProperty(t)&&(e[t]=this.properties[t]);return new o(e)},o.prototype._toString=function(e){var t=[];for(var r in this.properties)this.properties.hasOwnProperty(r)&&t.push(u(r)+": "+this.properties[r].toString(e));return"{"+t.join(", ")+"}"},o.prototype.toJSON=function(){return{mathjs:"ObjectNode",properties:this.properties}},o.fromJSON=function(e){return new o(e.properties)},o.prototype.toHTML=function(e){var t=[];for(var r in this.properties)this.properties.hasOwnProperty(r)&&t.push(''+c(r)+':'+this.properties[r].toHTML(e));return'{'+t.join(',')+'}'},o.prototype._toTex=function(e){var t=[];for(var r in this.properties)this.properties.hasOwnProperty(r)&&t.push("\\mathbf{"+r+":} & "+this.properties[r].toTex(e)+"\\\\");return"\\left\\{\\begin{array}{ll}".concat(t.join("\n"),"\\end{array}\\right\\}")},o}},function(e,t,s){"use strict";var u=s(52);t.name="RangeNode",t.path="expression.node",t.factory=function(n,e,t,r){var i=t(s(16));function o(e,t,r){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if(!n.isNode(e))throw new TypeError("Node expected");if(!n.isNode(t))throw new TypeError("Node expected");if(r&&!n.isNode(r))throw new TypeError("Node expected");if(3('+n+')'),t=n,this.step){var i=this.step.toHTML(e);r.step&&(i='('+i+')'),t+=':'+i}var o=this.end.toHTML(e);return r.end&&(o='('+o+')'),t+=':'+o},o.prototype._toTex=function(e){var t=a(this,e&&e.parenthesis?e.parenthesis:"keep"),r=this.start.toTex(e);if(t.start&&(r="\\left(".concat(r,"\\right)")),this.step){var n=this.step.toTex(e);t.step&&(n="\\left(".concat(n,"\\right)")),r+=":"+n}var i=this.end.toTex(e);return t.end&&(i="\\left(".concat(i,"\\right)")),r+=":"+i},o}},function(e,t,a){"use strict";var s=a(52),u=a(4),f=a(9).escape;t.name="RelationalNode",t.path="expression.node",t.factory=function(e,t,r,n){var i=r(a(16)),c=a(13).getSafeProperty;function o(e,t){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if(!Array.isArray(e))throw new TypeError("Parameter conditionals must be an array");if(!Array.isArray(t))throw new TypeError("Parameter params must be an array");if(e.length!==t.length-1)throw new TypeError("Parameter params must contain exactly one more element than parameter conditionals");this.conditionals=e,this.params=t}return(o.prototype=new i).type="RelationalNode",o.prototype.isRelationalNode=!0,o.prototype._compile=function(a,t){var s=this,u=this.params.map(function(e){return e._compile(a,t)});return function(e,t,r){for(var n,i=u[0](e,t,r),o=0;o",smallerEq:"<=",largerEq:">="},r=e[0],a=0;a('+e.toHTML(n)+')':e.toHTML(n)}),t={equal:"==",unequal:"!=",smaller:"<",larger:">",smallerEq:"<=",largerEq:">="},r=e[0],a=0;a'+f(t[this.conditionals[a]])+""+e[a+1];return r},o.prototype._toTex=function(n){for(var i=n&&n.parenthesis?n.parenthesis:"keep",o=s.getPrecedence(this,i),e=this.params.map(function(e,t){var r=s.getPrecedence(e,i);return"all"===i||null!==r&&r<=o?"\\left("+e.toString(n)+"\right)":e.toString(n)}),t=e[0],r=0;rr-1&&(void 0===o[n+1]&&(o[n+1]=0),o[n+1]+=o[n]/r|0,o[n]%=r)}return o.reverse()}M.absoluteValue=M.abs=function(){var e=new this.constructor(this);return e.s<0&&(e.s=1),U(e)},M.ceil=function(){return U(new this.constructor(this),this.e+1,2)},M.comparedTo=M.cmp=function(e){var t,r,n,i,o=this.d,a=(e=new this.constructor(e)).d,s=this.s,u=e.s;if(!o||!a)return s&&u?s!==u?s:o===a?0:!o^s<0?1:-1:NaN;if(!o[0]||!a[0])return o[0]?s:a[0]?-u:0;if(s!==u)return s;if(this.e!==e.e)return this.e>e.e^s<0?1:-1;for(t=0,r=(n=o.length)<(i=a.length)?n:i;ta[t]^s<0?1:-1;return n===i?0:ithis.d.length-2},M.isNaN=function(){return!this.s},M.isNegative=M.isNeg=function(){return this.s<0},M.isPositive=M.isPos=function(){return 0t&&(t=this.e+1)):t=NaN,t},M.round=function(){var e=this.constructor;return U(new e(this),this.e+1,e.rounding)},M.sine=M.sin=function(){var e,t,r=this,n=r.constructor;return r.isFinite()?r.isZero()?new n(r):(e=n.precision,t=n.rounding,n.precision=e+Math.max(r.e,r.sd())+R,n.rounding=1,r=function(e,t){var r,n=t.d.length;if(n<3)return Z(e,2,t,t);r=16<(r=1.4*Math.sqrt(n))?16:0|r,t=t.times(Math.pow(5,-r)),t=Z(e,2,t,t);for(var i,o=new e(5),a=new e(16),s=new e(20);r--;)i=t.times(t),t=t.times(o.plus(i.times(a.times(i).minus(s))));return t}(n,V(n,r)),n.precision=e,n.rounding=t,U(2=e.d.length-1&&(r=c<0?-c:c)<=9007199254740991)return i=j(u,s,r,n),e.s<0?new u(1).div(i):U(i,n,o);if((a=s.s)<0){if(tu.maxE+1||t=i.toExpPos):(A(e,1,d),void 0===t?t=i.rounding:A(t,0,8),_(n=U(new i(n),e,t),e<=n.e||n.e<=i.toExpNeg,e)),n.isNeg()&&!n.isZero()?"-"+r:r},M.toSignificantDigits=M.toSD=function(e,t){var r=this.constructor;return void 0===e?(e=r.precision,t=r.rounding):(A(e,1,d),void 0===t?t=r.rounding:A(t,0,8)),U(new r(this),e,t)},M.toString=function(){var e=this.constructor,t=_(this,this.e<=e.toExpNeg||this.e>=e.toExpPos);return this.isNeg()&&!this.isZero()?"-"+t:t},M.truncated=M.trunc=function(){return U(new this.constructor(this),this.e+1,1)},M.valueOf=M.toJSON=function(){var e=this.constructor,t=_(this,this.e<=e.toExpNeg||this.e>=e.toExpPos);return this.isNeg()?"-"+t:t};var T=function(){function C(e,t,r){var n,i=0,o=e.length;for(e=e.slice();o--;)n=e[o]*t+i,e[o]=n%r|0,i=n/r|0;return i&&e.unshift(i),e}function z(e,t,r,n){var i,o;if(r!=n)o=nt[i]?1:-1;break}return o}function B(e,t,r,n){for(var i=0;r--;)e[r]-=i,i=e[r](T[u]||0)&&s--,null==r?(x=r=S.precision,n=S.rounding):x=i?r+(e.e-t.e)+1:r,x<0)d.push(1),l=!0;else{if(x=x/f+2|0,u=0,1==E){for(_=_[c=0],x++;(u=o/2&&++M;c=0,(a=z(_,y,E,g))<0?(v=y[0],E!=g&&(v=v*o+(y[1]||0)),1<(c=v/M|0)?(o<=c&&(c=o-1),1==(a=z(p=C(_,c,o),y,m=p.length,g=y.length))&&(c--,B(p,Em.maxE?(e.d=null,e.e=NaN):e.ee.constructor.maxE?(e.d=null,e.e=NaN):e.ei-1;)l[r]=0,r||(++o,l.unshift(1));for(u=l.length;!l[u-1];--u);for(a=0,f="";au)for(o-=u;o--;)f+="0";else ot)return e.length=t,!0}function W(e){return new this(e).abs()}function Y(e){return new this(e).acos()}function X(e){return new this(e).acosh()}function Q(e,t){return new this(e).plus(t)}function K(e){return new this(e).asin()}function ee(e){return new this(e).asinh()}function te(e){return new this(e).atan()}function re(e){return new this(e).atanh()}function ne(e,t){e=new this(e),t=new this(t);var r,n=this.precision,i=this.rounding,o=n+4;return e.s&&t.s?e.d||t.d?!t.d||e.isZero()?(r=t.s<0?B(this,n,i):new this(0)).s=e.s:!e.d||t.isZero()?(r=B(this,o,1).times(.5)).s=e.s:r=t.s<0?(this.precision=o,this.rounding=1,r=this.atan(T(e,t,o,1)),t=B(this,o,1),this.precision=n,this.rounding=i,e.s<0?r.minus(t):r.plus(t)):this.atan(T(e,t,o,1)):(r=B(this,o,1).times(0=o+1}}return 0===e.length?function(e){return 0===e.length}:1===e.length?(t=V(e[0]),function(e){return t(e[0])&&1===e.length}):2===e.length?(t=V(e[0]),n=V(e[1]),function(e){return t(e[0])&&n(e[1])&&2===e.length}):(r=e.map(V),function(e){for(var t=0;tl?(n=new TypeError("Too many arguments in function "+a+" (expected: "+l+", actual: "+r.length+")")).data={category:"tooManyArgs",fn:a,index:r.length,expectedLength:l}:(n=new TypeError('Arguments of type "'+r.join(", ")+'" do not match any of the defined signatures of function '+a+".")).data={category:"mismatch",actual:r.map(p)},n}function c(e){for(var t=999,r=0;r")}(e,t,0)}function m(e,t){if(!i.a.isNumber(e)||!i.a.isInteger(e))throw new TypeError("Index must be an integer (value: "+e+")");if(e<0||"number"==typeof t&&t<=e)throw new f.a(e,t)}function h(e,t,r){if(!Array.isArray(e)||!Array.isArray(t))throw new TypeError("Array expected");if(0===t.length)throw new Error("Resizing to scalar is not supported");return t.forEach(function(e){if(!i.a.isNumber(e)||!i.a.isInteger(e)||e<0)throw new TypeError("Invalid size, must contain positive integers (size: "+a.a.format(t)+")")}),function e(t,r,n,i){var o;var a;var s=t.length;var u=r[n];var c=Math.min(s,u);t.length=u;if(ni.length&&(i=i.concat(m(t-i.length)));else{var a=0<=n?n:Math.abs(o);i.length-1=i)return p.toExponential(e,t);var a=t?p.roundDigits(o,t):o,s=a.coefficients,u=a.exponent;s.lengtht&&5<=n.splice(t,n.length-t)[0]){var i=t-1;for(n[i]++;10===n[i];)n.pop(),0===i&&(n.unshift(0),r.exponent++,i++),n[--i]++}return r},p.digits=function(e){return e.toExponential().replace(/e.*$/,"").replace(/^0\.?0*|\./,"").length},p.DBL_EPSILON=Number.EPSILON||2220446049250313e-31,p.nearlyEqual=function(e,t,r){if(null==r)return e===t;if(e===t)return!0;if(isNaN(e)||isNaN(t))return!1;if(isFinite(e)&&isFinite(t)){var n=Math.abs(e-t);return n>",rightLogShift:">>>",equal:"=",unequal:"\\neq",smaller:"<",larger:">",smallerEq:"\\leq",largerEq:"\\geq",bitAnd:"\\&",bitXor:"\\underline{|}",bitOr:"|",and:"\\wedge",xor:"\\veebar",or:"\\vee"},r.defaultTemplate="\\mathrm{${name}}\\left(${args}\\right)";var i={deg:"^\\circ"};r.escape=function(e){return n(e,{preserveFormatting:!0})},r.toSymbol=function(e,t){return(t=void 0!==t&&t)?Object.prototype.hasOwnProperty.call(i, e)?i[e]:"\\mathrm{"+r.escape(e)+"}":Object.prototype.hasOwnProperty.call(r.symbols, e)?r.symbols[e]:r.escape(e)}},function(e,o,t){"use strict";function n(e){return(n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}var i=t(79);o.clone=function t(e){var r=n(e);if("number"===r||"string"===r||"boolean"===r||null==e)return e;if("function"==typeof e.clone)return e.clone();if(Array.isArray(e))return e.map(function(e){return t(e)});if(e instanceof Date)return new Date(e.valueOf());if(i(e))return e;if(e instanceof RegExp)throw new TypeError("Cannot clone "+e);return o.map(e,t)},o.map=function(e,t){var r={};for(var n in e)Object.prototype.hasOwnProperty.call(o, e,n)&&(r[n]=t(e[n]));return r},o.extend=function(e,t){for(var r in t)Object.prototype.hasOwnProperty.call(o, t,r)&&(e[r]=t[r]);return e},o.deepExtend=function e(t,r){if(Array.isArray(r))throw new TypeError("Arrays are not supported by deepExtend");for(var n in r)if(Object.prototype.hasOwnProperty.call(o, r,n))if(r[n]&&r[n].constructor===Object)void 0===t[n]&&(t[n]={}),t[n].constructor===Object?e(t[n],r[n]):t[n]=r[n];else{if(Array.isArray(r[n]))throw new TypeError("Arrays are not supported by deepExtend");t[n]=r[n]}return t},o.deepEqual=function(e,t){var r,n,i;if(Array.isArray(e)){if(!Array.isArray(t))return!1;if(e.length!==t.length)return!1;for(n=0,i=e.length;n/g,">")}},function(e,t,l){"use strict";var p=l(5).extend,m=l(2);t.name="multiply",t.factory=function(n,e,t,R){var r=l(4),i=t(l(1)),U=t(l(17)),q=t(l(21)),I=t(l(11)),o=t(l(20)),a=t(l(6)),b=n.DenseMatrix,D=n.SparseMatrix,s=R("multiply",p({"Array, Array":function(e,t){u(m.size(e),m.size(t));var r=s(i(e),i(t));return n.isMatrix(r)?r.valueOf():r},"Matrix, Matrix":function(e,t){var r=e.size(),n=t.size();return u(r,n),1===r.length?1===n.length?function(e,t,r){if(0===r)throw new Error("Cannot multiply two empty vectors");var n,i=e._data,o=e._datatype,a=t._data,s=t._datatype,u=U,c=q;o&&s&&o===s&&"string"==typeof o&&(n=o,u=R.find(U,[n,n]),c=R.find(q,[n,n]));for(var f=c(i[0],a[0]),l=1;lo)for(var u=o-1,c=a.length;ui.re?1:n.rei.im?1:n.imt.length?1:e.length>=1,i=s(i,i);return n}function m(e,t){return n(p(e.valueOf(),t))}return f.toTex={2:"\\left(${args[0]}\\right)".concat(r.operators.pow,"{${args[1]}}")},f}},function(e,t,o){"use strict";var u=o(3).isInteger,c=o(2).resize;t.name="zeros",t.factory=function(a,t,e,r){var s=e(o(1)),n=r("zeros",{"":function(){return"Array"===t.matrix?i([]):i([],"default")},"...number | BigNumber | string":function(e){return"string"!=typeof e[e.length-1]?"Array"===t.matrix?i(e):i(e,"default"):i(e,e.pop())},Array:i,Matrix:function(e){var t=e.storage();return i(e.valueOf(),t)},"Array | Matrix, string":function(e,t){return i(e.valueOf(),t)}});return n.toTex=void 0,n;function i(e,t){var n,r=(n=!1,e.forEach(function(e,t,r){a.isBigNumber(e)&&(n=!0,r[t]=e.toNumber())}),n?new a.BigNumber(0):0);if(e.forEach(function(e){if("number"!=typeof e||!u(e)||e<0)throw new Error("Parameters in function zeros must be positive integers")}),t){var i=s(t);return 0":!0,"<=":!0,">=":!0,"<<":!0,">>":!0,">>>":!0},E={mod:!0,to:!0,in:!0,and:!0,xor:!0,or:!0,not:!0},A={true:!0,false:!1,null:null,undefined:void 0},S=["NaN","Infinity"];function O(e,t){return e.expression.substr(e.index,t)}function T(e){return O(e,1)}function _(e){e.index++}function C(e){return e.expression.charAt(e.index-1)}function z(e){return e.expression.charAt(e.index+1)}function B(e){for(e.tokenType=N.NULL,e.token="",e.comment="";w.isWhitespace(T(e),e.nestingLevel);)_(e);if("#"===T(e))for(;"\n"!==T(e)&&""!==T(e);)e.comment+=T(e),_(e);if(""!==T(e)){if("\n"===T(e)&&!e.nestingLevel)return e.tokenType=N.DELIMITER,e.token=T(e),void _(e);var t=T(e),r=O(e,2),n=O(e,3);if(3===n.length&&M[n])return e.tokenType=N.DELIMITER,e.token=n,_(e),_(e),void _(e);if(2===r.length&&M[r])return e.tokenType=N.DELIMITER,e.token=r,_(e),void _(e);if(M[t])return e.tokenType=N.DELIMITER,e.token=t,void _(e);if(w.isDigitDot(t)){if(e.tokenType=N.NUMBER,"."===T(e))e.token+=T(e),_(e),w.isDigit(T(e))||(e.tokenType=N.DELIMITER);else{for(;w.isDigit(T(e));)e.token+=T(e),_(e);w.isDecimalMark(T(e),z(e))&&(e.token+=T(e),_(e))}for(;w.isDigit(T(e));)e.token+=T(e),_(e);if("E"===T(e)||"e"===T(e))if(w.isDigit(z(e))||"-"===z(e)||"+"===z(e)){if(e.token+=T(e),_(e),"+"!==T(e)&&"-"!==T(e)||(e.token+=T(e),_(e)),!w.isDigit(T(e)))throw re(e,'Digit expected, got "'+T(e)+'"');for(;w.isDigit(T(e));)e.token+=T(e),_(e);if(w.isDecimalMark(T(e),z(e)))throw re(e,'Digit expected, got "'+T(e)+'"')}else if("."===z(e))throw _(e),re(e,'Digit expected, got "'+T(e)+'"')}else{if(!w.isAlpha(T(e),C(e),z(e))){for(e.tokenType=N.UNKNOWN;""!==T(e);)e.token+=T(e),_(e);throw re(e,'Syntax error in part "'+e.token+'"')}for(;w.isAlpha(T(e),C(e),z(e))||w.isDigit(T(e));)e.token+=T(e),_(e);Object.prototype.hasOwnProperty.call(E, e.token)?e.tokenType=N.DELIMITER:e.tokenType=N.SYMBOL}}else e.tokenType=N.DELIMITER}function k(e){for(;B(e),"\n"===e.token;);}function I(e){e.nestingLevel++}function P(e){e.nestingLevel--}function R(e,t){var r={extraNodes:{},expression:"",comment:"",index:0,token:"",tokenType:N.NULL,nestingLevel:0,conditionalLevel:null};oe(r,{expression:e,extraNodes:t}),B(r);var n=function(e){var t,r,n=[];for(""!==e.token&&"\n"!==e.token&&";"!==e.token&&((t=U(e)).comment=e.comment);"\n"===e.token||";"===e.token;)0===n.length&&t&&(r=";"!==e.token,n.push({node:t,visible:r})),B(e),"\n"!==e.token&&";"!==e.token&&""!==e.token&&((t=U(e)).comment=e.comment,r=";"!==e.token,n.push({node:t,visible:r}));return 0":"larger","<=":"smallerEq",">=":"largerEq"};Object.prototype.hasOwnProperty.call(n, e.token);){var i={name:e.token,fn:n[e.token]};r.push(i),k(e),t.push(H(e))}return 1===t.length?t[0]:2===t.length?new l(r[0].name,r[0].fn,t):new x(r.map(function(e){return e.fn}),t)}function H(e){var t,r,n,i,o;for(t=$(e),r={"<<":"leftShift",">>":"rightArithShift",">>>":"rightLogShift"};Object.prototype.hasOwnProperty.call(r, e.token);)i=r[n=e.token],k(e),o=[t,$(e)],t=new l(n,i,o);return t}function $(e){var t,r,n,i,o;for(t=G(e),r={to:"to",in:"to"};Object.prototype.hasOwnProperty.call(r, e.token);)i=r[n=e.token],k(e),t="in"===n&&""===e.token?new l("*","multiply",[t,new b("in")],!0):(o=[t,G(e)],new l(n,i,o));return t}function G(e){var t,r=[];if(t=":"===e.token?new d(1):Z(e),":"===e.token&&e.conditionalLevel!==e.nestingLevel){for(r.push(t);":"===e.token&&r.length<3;)k(e),")"===e.token||"]"===e.token||","===e.token||""===e.token?r.push(new b("end")):r.push(Z(e));t=3===r.length?new n(r[0],r[2],r[1]):new n(r[0],r[1])}return t}function Z(e){var t,r,n,i,o;for(t=V(e),r={"+":"add","-":"subtract"};Object.prototype.hasOwnProperty.call(r, e.token);)i=r[n=e.token],k(e),o=[t,V(e)],t=new l(n,i,o);return t}function V(e){var t,r,n,i,o;for(r=t=J(e),n={"*":"multiply",".*":"dotMultiply","/":"divide","./":"dotDivide","%":"mod",mod:"mod"};Object.prototype.hasOwnProperty.call(n, e.token);)o=n[i=e.token],k(e),r=J(e),t=new l(i,o,[t,r]);return t}function J(e){var t,r;for(r=t=W(e);e.tokenType===N.SYMBOL||"in"===e.token&&a.isConstantNode(t)||!(e.tokenType!==N.NUMBER||a.isConstantNode(r)||a.isOperatorNode(r)&&"!"!==r.op)||"("===e.token;)r=W(e),t=new l("*","multiply",[t,r],!0);return t}function W(e){for(var t=Y(e),r=t,n=[];"/"===e.token&&a.isConstantNode(r);){if(n.push(oe({},e)),k(e),e.tokenType!==N.NUMBER){oe(e,n.pop());break}if(n.push(oe({},e)),k(e),e.tokenType!==N.SYMBOL&&"("!==e.token){n.pop(),oe(e,n.pop());break}oe(e,n.pop()),n.pop(),r=Y(e),t=new l("/","divide",[t,r])}return t}function Y(e){var t,r,n,i,o,a,s,u,c={"-":"unaryMinus","+":"unaryPlus","~":"bitNot",not:"not"};return Object.prototype.hasOwnProperty.call(c, e.token)?(n=c[e.token],t=e.token,k(e),r=[Y(e)],new l(t,n,r)):(o=function(e){var t,r,n,i;for(t=function(e){var t,r,n,i,o,a,s,u,c,f=[];if(e.tokenType===N.SYMBOL&&Object.prototype.hasOwnProperty.call(e.extraNodes, e.token)){var l=e.extraNodes[e.token];if(B(e),"("===e.token){if(f=[],I(e),B(e),")"!==e.token)for(f.push(U(e));","===e.token;)B(e),f.push(U(e));if(")"!==e.token)throw re(e,"Parenthesis ) expected");P(e),B(e)}return new l(f)}return(t=e).tokenType===N.SYMBOL||t.tokenType===N.DELIMITER&&t.token in E?(n=t.token,B(t),r=Object.prototype.hasOwnProperty.call(A, n)?new d(A[n]):-1!==S.indexOf(n)?new d(m(n,"number")):new b(n),r=X(t,r)):'"'!==(i=t).token?"'"!==(s=i).token?function(e){var t,r,n,i;if("["!==e.token)return function(e){if("{"!==e.token)return(t=e).tokenType!==N.NUMBER?function(e){var t;if("("!==e.token)return function(e){throw""===e.token?re(e,"Unexpected end of expression"):re(e,"Value expected")}(e);if(I(e),B(e),t=U(e),")"===e.token)return P(e),B(e),t=new g(t),t=X(e,t);throw re(e,"Parenthesis ) expected")}(t):(r=t.token,B(t),new d(m(r,p.number)));var t,r,n;I(e);var i={};do{if(B(e),"}"!==e.token){if('"'===e.token)n=Q(e);else if("'"===e.token)n=K(e);else{if(e.tokenType!==N.SYMBOL)throw re(e,"Symbol or string expected as object key");n=e.token,B(e)}if(":"!==e.token)throw re(e,"Colon : expected after object key");B(e),i[n]=U(e)}}while(","===e.token);if("}"!==e.token)throw re(e,"Comma , or bracket } expected after object value");P(e),B(e);var o=new y(i);return o=X(e,o)}(e);if(I(e),B(e),"]"!==e.token){var o=ee(e);if(";"===e.token){for(n=1,r=[o];";"===e.token;)B(e),r[n]=ee(e),n++;if("]"!==e.token)throw re(e,"End of matrix ] expected");P(e),B(e),i=r[0].items.length;for(var a=1;an[o]&&(n[o]=t[o],i=!0);i&&s(e,n,r)}return(y.prototype=new n).type="DenseMatrix",y.prototype.isDenseMatrix=!0,y.prototype.getDataType=function(){return r(this._data)},y.prototype.storage=function(){return"dense"},y.prototype.datatype=function(){return this._datatype},y.prototype.create=function(e,t){return new y(e,t)},y.prototype.subset=function(e,t,r){switch(arguments.length){case 1:return function(e,t){if(!h.isIndex(t))throw new TypeError("Invalid index");if(t.isScalar())return e.get(t.min());var r=t.size();if(r.length!==e._size.length)throw new p(r.length,e._size.length);for(var n=t.min(),i=t.max(),o=0,a=e._size.length;o");var c=t.max().map(function(e){return e+1});l(e,c,n);var f=o.length;!function r(n,i,o,a,s){var e=s===a-1,t=i.dimension(s);e?t.forEach(function(e,t){N(e),n[e]=o[t[0]]}):t.forEach(function(e,t){N(e),r(n[e],i,o[t[0]],a,s+1)})}(e._data,t,r,f,0)}return e}(this,e,t,r);default:throw new SyntaxError("Wrong number of arguments")}},y.prototype.get=function(e){if(!v(e))throw new TypeError("Array expected");if(e.length!==this._size.length)throw new p(e.length,this._size.length);for(var t=0;t'+t+"":"i"===t?''+t+"":"Infinity"===t?''+t+"":"NaN"===t?''+t+"":"null"===t?''+t+"":"undefined"===t?''+t+"":''+t+""},o.prototype.toJSON=function(){return{mathjs:"SymbolNode",name:this.name}},o.fromJSON=function(e){return new o(e.name)},o.prototype._toTex=function(e){var t=!1;void 0===n[this.name]&&s(this.name)&&(t=!0);var r=c.toSymbol(this.name,t);return"\\"===r[0]?r:" "+r},o}},function(e,t,l){"use strict";var p=l(3).nearlyEqual,m=l(38);t.name="compare",t.factory=function(r,n,e,t){var i=e(l(1)),o=e(l(18)),a=e(l(66)),s=e(l(19)),u=e(l(7)),c=e(l(6)),f=t("compare",{"boolean, boolean":function(e,t){return e===t?0:t=this.max?this.message="Index out of range ("+this.index+" > "+(this.max-1)+")":this.message="Index out of range ("+this.index+")",this.stack=(new Error).stack}(n.prototype=new RangeError).constructor=RangeError,n.prototype.name="IndexError",n.prototype.isIndexError=!0,e.exports=n},function(e,t,r){"use strict";function i(e,t,r,n){if(!(this instanceof i))throw new SyntaxError("Constructor must be called with the new operator");this.fn=e,this.count=t,this.min=r,this.max=n,this.message="Wrong number of arguments in function "+e+" ("+t+" provided, "+r+(null!=n?"-"+n:"")+" expected)",this.stack=(new Error).stack}(i.prototype=new Error).constructor=Error,i.prototype.name="ArgumentsError",i.prototype.isArgumentsError=!0,e.exports=i},function(e,t,s){"use strict";var u=s(9).format,c=s(4).escape;t.name="ConstantNode",t.path="expression.node",t.factory=function(e,t,r,n){var i=r(s(16)),o=r(s(24));function a(e){if(!(this instanceof a))throw new SyntaxError("Constructor must be called with the new operator");if(2===arguments.length)throw new SyntaxError("new ConstantNode(valueStr, valueType) is not supported anymore since math v4.0.0. Use new ConstantNode(value) instead, where value is a non-stringified value.");this.value=e}return(a.prototype=new i).type="ConstantNode",a.prototype.isConstantNode=!0,a.prototype._compile=function(e,t){var r=this.value;return function(){return r}},a.prototype.forEach=function(e){},a.prototype.map=function(e){return this.clone()},a.prototype.clone=function(){return new a(this.value)},a.prototype._toString=function(e){return u(this.value,e)},a.prototype.toHTML=function(e){var t=this._toString(e);switch(o(this.value)){case"number":case"BigNumber":case"Fraction":return''+t+"";case"string":return''+t+"";case"boolean":return''+t+"";case"null":return''+t+"";case"undefined":return''+t+"";default:return''+t+""}},a.prototype.toJSON=function(){return{mathjs:"ConstantNode",value:this.value}},a.fromJSON=function(e){return new a(e.value)},a.prototype._toTex=function(e){var t=this._toString(e);switch(o(this.value)){case"string":return"\\mathtt{"+c(t)+"}";case"number":case"BigNumber":var r=t.toLowerCase().indexOf("e");return-1!==r?t.substring(0,r)+"\\cdot10^{"+t.substring(r+1)+"}":t;case"Fraction":return this.value.toLatex();default:return t}},a}},function(e,t,a){"use strict";var h=a(4),s=a(2).map,f=a(9).escape,u=a(13).isSafeMethod,c=a(13).getSafeProperty,b=a(52);t.name="OperatorNode",t.path="expression.node",t.factory=function(i,e,t,r){var n=t(a(16));function o(e,t,r,n){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if("string"!=typeof e)throw new TypeError('string expected for parameter "op"');if("string"!=typeof t)throw new TypeError('string expected for parameter "fn"');if(!Array.isArray(r)||!r.every(i.isNode))throw new TypeError('Array containing Nodes expected for parameter "args"');this.implicit=!0===n,this.op=e,this.fn=t,this.args=r||[]}function m(i,o,e,t,r){var n,a=b.getPrecedence(i,o),s=b.getAssociativity(i,o);if("all"===o||2)'),"right"===o?''+f(this.op)+""+a:''+f(this.op)+""+a}if(2===n.length){var s=n[0].toHTML(r),u=n[1].toHTML(r);return i[0]&&(s='('+s+')'),i[1]&&(u='('+u+')'),this.implicit&&"OperatorNode:multiply"===this.getIdentifier()&&"hide"===t?s+''+u:s+''+f(this.op)+""+u}var c=n.map(function(e,t){return e=e.toHTML(r),i[t]&&(e='('+e+')'),e});return 2'):c.join(''+f(this.op)+""):''+f(this.fn)+'('+c.join(',')+')'},o.prototype._toTex=function(r){var e=r&&r.parenthesis?r.parenthesis:"keep",t=r&&r.implicit?r.implicit:"hide",n=this.args,i=m(this,e,t,n,!0),o=h.operators[this.fn];if(o=void 0===o?this.op:o,1===n.length){var a=b.getAssociativity(this,e),s=n[0].toTex(r);return i[0]&&(s="\\left(".concat(s,"\\right)")),"right"===a?o+s:s+o}if(2===n.length){var u=n[0],c=u.toTex(r);i[0]&&(c="\\left(".concat(c,"\\right)"));var f,l=n[1].toTex(r);switch(i[1]&&(l="\\left(".concat(l,"\\right)")),f="keep"===e?u.getIdentifier():u.getContent().getIdentifier(),this.getIdentifier()){case"OperatorNode:divide":return o+"{"+c+"}{"+l+"}";case"OperatorNode:pow":switch(c="{"+c+"}",l="{"+l+"}",f){case"ConditionalNode":case"OperatorNode:divide":c="\\left(".concat(c,"\\right)")}break;case"OperatorNode:multiply":if(this.implicit&&"hide"===t)return c+"~"+l}return c+o+l}if(2('+this.content.toHTML(e)+')':this.content.toHTML(e)},o.prototype._toTex=function(e){return!e||e&&!e.parenthesis||e&&"keep"===e.parenthesis?"\\left(".concat(this.content.toTex(e),"\\right)"):this.content.toTex(e)},o}},function(e,t,c){"use strict";function f(e){return(f="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function v(){return(v=Object.assign||function(e){for(var t=1;t'+p(this.fn)+'('+e.join(',')+')'};var u=g.prototype.toTex;return g.prototype.toTex=function(e){var t;return e&&"object"===f(e.handler)&&m(e.handler,this.name)&&(t=e.handler[this.name](this,e)),void 0!==t?t:u.call(this,e)},g.prototype._toTex=function(t){var e,r,n=this.args.map(function(e){return e.toTex(t)});switch(!i[this.name]||"function"!=typeof i[this.name].toTex&&"object"!==f(i[this.name].toTex)&&"string"!=typeof i[this.name].toTex||(e=i[this.name].toTex),f(e)){case"function":r=e(this,t);break;case"string":r=s(e,this,t);break;case"object":switch(f(e[n.length])){case"function":r=e[n.length](this,t);break;case"string":r=s(e[n.length],this,t)}}return void 0!==r?r:s(l.defaultTemplate,this,t)},g.prototype.getIdentifier=function(){return this.type+":"+this.name},g}},function(e,t,s){"use strict";var u=s(30);t.name="inv",t.factory=function(i,e,t,r){var o=t(s(1)),v=t(s(12)),x=t(s(17)),b=t(s(10)),w=t(s(34)),N=t(s(122)),M=t(s(49)),E=t(s(23)),n=r("inv",{"Array | Matrix":function(e){var t=i.isMatrix(e)?e.size():u.array.size(e);switch(t.length){case 1:if(1===t[0])return i.isMatrix(e)?o([v(1,e.valueOf()[0])]):[v(1,e[0])];throw new RangeError("Matrix must be square (size: "+u.string.format(t)+")");case 2:var r=t[0],n=t[1];if(r===n)return i.isMatrix(e)?o(a(e.valueOf(),r,n),e.storage()):a(e,r,n);throw new RangeError("Matrix must be square (size: "+u.string.format(t)+")");default:throw new RangeError("Matrix must be two dimensional (size: "+u.string.format(t)+")")}},any:function(e){return v(1,e)}});function a(e,t,r){var n,i,o,a,s;if(1===t){if(0===(a=e[0][0]))throw Error("Cannot calculate inverse, determinant is zero");return[[v(1,a)]]}if(2===t){var u=N(e);if(0===u)throw Error("Cannot calculate inverse, determinant is zero");return[[v(e[1][1],u),v(w(e[0][1]),u)],[v(w(e[1][0]),u),v(e[0][0],u)]]}var c=e.concat();for(n=0;np&&(p=E(c[n][l]),m=n),n++;if(0===p)throw Error("Cannot calculate inverse, determinant is zero");(n=m)!==l&&(s=c[l],c[l]=c[n],c[n]=s,s=f[l],f[l]=f[n],f[n]=s);var h=c[l],d=f[l];for(n=0;n=n.length)throw new a(t,n.length);return o(e)?e.create(s(e.valueOf(),t,r)):s(e,t,r)}},function(e,t,r){"use strict";e.exports=function(e){return e&&e.constructor.prototype.isBigNumber||!1}},function(e,t,r){"use strict";function o(e){return(o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}var a=r(171),s=r(3).format,u=r(3).isNumber;t.name="Complex",t.path="type",t.factory=function(i,e,t,r,n){return a.prototype.type="Complex",a.prototype.isComplex=!0,a.prototype.toJSON=function(){return{mathjs:"Complex",re:this.re,im:this.im}},a.prototype.toPolar=function(){return{r:this.abs(),phi:this.arg()}},a.prototype.format=function(e){var t=this.im,r=this.re,n=s(this.re,e),i=s(this.im,e),o=u(e)?e:e?e.precision:null;if(null!==o){var a=Math.pow(10,-o);Math.abs(r/t)t.re?1:e.ret.im?1:e.im");if(2!==a.length)throw SyntaxError("Could not parse rule: "+n);n={l:a[0],r:a[1]};case"object":if(i={l:M(c(n.l)),r:M(c(n.r))},n.context&&(i.evaluate=n.context),n.evaluate&&(i.evaluate=c(n.evaluate)),x(i.l)){var s=N(i.l),u=new g("_p"+A++);i.expanded={},i.expanded.l=s([i.l.clone(),u]),f(i.expanded.l),b(i.expanded.l),i.expanded.r=s([i.r,u])}break;case"function":i=n;break;default:throw TypeError("Unsupported type of rule: "+o)}t.push(i)}return t}(t);for(var i=u(e,r),o={},a=(i=M(i)).toString({parenthesis:"all"});!o[a];){o[a]=!0;for(var s=A=0;sc)for(s-=c;s--;)u+="0";else s>1,f[m]&=1)}return f.reverse()}e.exports=function(e,t,r){var n,i,o,a,s,u=e.constructor,c=+(e.s<0),f=+(t.s<0);if(c){n=w(b(e));for(var l=0;l>1)*e(n+1,r)}},function(e,t,u){"use strict";var c=u(3).isInteger;t.name="partitionSelect",t.factory=function(n,e,t,r){var f=t(u(51)),l=t(u(77)),i=t(u(54));function o(e,t){return-i(e,t)}return r("partitionSelect",{"Array | Matrix, number":function(e,t){return a(e,t,i)},"Array | Matrix, number, string":function(e,t,r){if("asc"===r)return a(e,t,i);if("desc"===r)return a(e,t,o);throw new Error('Compare string must be "asc" or "desc"')},"Array | Matrix, number, function":a});function a(e,t,r){if(!c(t)||t<0)throw new Error("k must be a non-negative integer");if(n.isMatrix(e)){if(1=e.length)throw new Error("k out of bounds");for(var n=0;n15 significant digits to BigNumber (value: "+e+"). Use function bignumber(x) to convert to BigNumber.");return new r.BigNumber(e)}},{from:"number",to:"Complex",convert:function(e){return new r.Complex(e,0)}},{from:"number",to:"string",convert:function(e){return e+""}},{from:"BigNumber",to:"Complex",convert:function(e){return new r.Complex(e.toNumber(),0)}},{from:"Fraction",to:"BigNumber",convert:function(e){throw new TypeError("Cannot implicitly convert a Fraction to BigNumber or vice versa. Use function bignumber(x) to convert to BigNumber or fraction(x) to convert to Fraction.")}},{from:"Fraction",to:"Complex",convert:function(e){return new r.Complex(e.valueOf(),0)}},{from:"number",to:"Fraction",convert:function(e){if(new r.Fraction(e).valueOf()!==e)throw new TypeError("Cannot implicitly convert a number to a Fraction when there will be a loss of precision (value: "+e+"). Use function fraction(x) to convert to Fraction.");return new r.Fraction(e)}},{from:"string",to:"number",convert:function(e){var t=Number(e);if(isNaN(t))throw new Error('Cannot convert "'+e+'" to a number');return t}},{from:"string",to:"BigNumber",convert:function(t){try{return new r.BigNumber(t)}catch(e){throw new Error('Cannot convert "'+t+'" to BigNumber')}}},{from:"string",to:"Fraction",convert:function(t){try{return new r.Fraction(t)}catch(e){throw new Error('Cannot convert "'+t+'" to Fraction')}}},{from:"string",to:"Complex",convert:function(t){try{return new r.Complex(t)}catch(e){throw new Error('Cannot convert "'+t+'" to Complex')}}},{from:"boolean",to:"number",convert:function(e){return+e}},{from:"boolean",to:"BigNumber",convert:function(e){return new r.BigNumber(+e)}},{from:"boolean",to:"Fraction",convert:function(e){return new r.Fraction(+e)}},{from:"boolean",to:"string",convert:function(e){return+e}},{from:"Array",to:"Matrix",convert:function(e){return new r.DenseMatrix(e)}},{from:"Matrix",to:"Array",convert:function(e){return e.valueOf()}}],e}},function(e,t,r){"use strict";var n=r(158);t.mixin=function(e){var t=new n;return e.on=t.on.bind(t),e.off=t.off.bind(t),e.once=t.once.bind(t),e.emit=t.emit.bind(t),e}},function(e,t,r){"use strict";var o=r(0);t.name="bignumber",t.factory=function(t,e,r,n){var i=n("bignumber",{"":function(){return new t.BigNumber(0)},number:function(e){return new t.BigNumber(e+"")},string:function(e){return new t.BigNumber(e)},BigNumber:function(e){return e},Fraction:function(e){return new t.BigNumber(e.n).div(e.d).times(e.s)},null:function(e){return new t.BigNumber(0)},"Array | Matrix":function(e){return o(e,i)}});return i.toTex={0:"0",1:"\\left(${args[0]}\\right)"},i}},function(e,t,r){"use strict";var i=r(3);t.name="Range",t.path="type",t.factory=function(a,e,t,r){function s(e,t,r){if(!(this instanceof s))throw new SyntaxError("Constructor must be called with the new operator");var n=null!=e,i=null!=t,o=null!=r;if(n)if(a.isBigNumber(e))e=e.toNumber();else if("number"!=typeof e)throw new TypeError("Parameter start must be a number");if(i)if(a.isBigNumber(t))t=t.toNumber();else if("number"!=typeof t)throw new TypeError("Parameter end must be a number");if(o)if(a.isBigNumber(r))r=r.toNumber();else if("number"!=typeof r)throw new TypeError("Parameter step must be a number");this.start=n?parseFloat(e):0,this.end=i?parseFloat(t):0,this.step=o?parseFloat(r):1}return s.prototype.type="Range",s.prototype.isRange=!0,s.parse=function(e){if("string"!=typeof e)return null;var t=e.split(":").map(function(e){return parseFloat(e)});if(t.some(function(e){return isNaN(e)}))return null;switch(t.length){case 2:return new s(t[0],t[1]);case 3:return new s(t[0],t[2],t[1]);default:return null}},s.prototype.clone=function(){return new s(this.start,this.end,this.step)},s.prototype.size=function(){var e=0,t=this.start,r=this.step,n=this.end-t;return i.sign(r)===i.sign(n)?e=Math.ceil(n/r):0===n&&(e=0),isNaN(e)&&(e=0),[e]},s.prototype.min=function(){var e=this.size()[0];return 0)'),t+this.index.toHTML(e)},o.prototype._toTex=function(e){var t=this.object.toTex(e);return a(this.object)&&(t="\\left(' + object + '\\right)"),t+this.index.toTex(e)},o.prototype.toJSON=function(){return{mathjs:"AccessorNode",object:this.object,index:this.index}},o.fromJSON=function(e){return new o(e.object,e.index)},o}},function(e,t,r){"use strict";e.exports={end:!0}},function(e,t,o){"use strict";function a(e){return(a="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}var s=o(35).transform,u=o(13).getSafeProperty;t.factory=function(e,t,r,n){var i=r(o(22));return function(e,t){try{if(Array.isArray(e))return i(e,t);if(e&&"function"==typeof e.subset)return e.subset(t);if("string"==typeof e)return i(e,t);if("object"!==a(e))throw new TypeError("Cannot apply index: unsupported type of object");if(!t.isObjectProperty())throw new TypeError("Cannot apply a numeric index as object property");return u(e,t.getObjectProperty())}catch(e){throw s(e)}}}},function(e,t,a){"use strict";var s=a(2).map;t.name="ArrayNode",t.path="expression.node",t.factory=function(r,e,t,n){var i=t(a(16));function o(e){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if(this.items=e||[],!Array.isArray(this.items)||!this.items.every(r.isNode))throw new TypeError("Array containing Nodes expected");var t=function(){throw new Error("Property `ArrayNode.nodes` is deprecated, use `ArrayNode.items` instead")};Object.defineProperty(this,"nodes",{get:t,set:t})}return(o.prototype=new i).type="ArrayNode",o.prototype.isArrayNode=!0,o.prototype._compile=function(t,r){var e=s(this.items,function(e){return e._compile(t,r)});if("Array"===t.config().matrix)return function(t,r,n){return s(e,function(e){return e(t,r,n)})};var i=t.matrix;return function(t,r,n){return i(s(e,function(e){return e(t,r,n)}))}},o.prototype.forEach=function(e){for(var t=0;t['+this.items.map(function(e){return e.toHTML(t)}).join(',')+']'},o.prototype._toTex=function(t){var r="\\begin{bmatrix}";return this.items.forEach(function(e){e.items?r+=e.items.map(function(e){return e.toTex(t)}).join("&"):r+=e.toTex(t),r+="\\\\"}),r+="\\end{bmatrix}"},o}},function(e,t,u){"use strict";var d=u(13).getSafeProperty,y=u(13).setSafeProperty;t.name="AssignmentNode",t.path="expression.node",t.factory=function(n,e,t,r){var i=t(u(16)),m=t(u(198)),h=t(u(109)),o=u(52);function a(e,t,r){if(!(this instanceof a))throw new SyntaxError("Constructor must be called with the new operator");if(this.object=e,this.index=r?t:null,this.value=r||t,!n.isSymbolNode(e)&&!n.isAccessorNode(e))throw new TypeError('SymbolNode or AccessorNode expected as "object"');if(n.isSymbolNode(e)&&"end"===e.name)throw new Error('Cannot assign to symbol "end"');if(this.index&&!n.isIndexNode(this.index))throw new TypeError('IndexNode expected as "index"');if(!n.isNode(this.value))throw new TypeError('Node expected as "value"');Object.defineProperty(this,"name",{get:function(){return this.index?this.index.isObjectProperty()?this.index.getObjectProperty():"":this.object.name||""}.bind(this),set:function(){throw new Error("Cannot assign a new name, name is read-only")}})}function s(e,t){t||(t="keep");var r=o.getPrecedence(e,t),n=o.getPrecedence(e.value,t);return"all"===t||null!==n&&n<=r}return(a.prototype=new i).type="AssignmentNode",a.prototype.isAssignmentNode=!0,a.prototype._compile=function(e,t){var a=this.object._compile(e,t),u=this.index?this.index._compile(e,t):null,c=this.value._compile(e,t),s=this.object.name;if(this.index){if(this.index.isObjectProperty()){var o=this.index.getObjectProperty();return function(e,t,r){var n=a(e,t,r),i=c(e,t,r);return y(n,o,i)}}if(n.isSymbolNode(this.object))return function(e,t,r){var n=a(e,t,r),i=c(e,t,r),o=u(e,t,n);return y(e,s,m(n,o,i)),i};var f=this.object.object._compile(e,t);if(this.object.index.isObjectProperty()){var l=this.object.index.getObjectProperty();return function(e,t,r){var n=f(e,t,r),i=d(n,l),o=u(e,t,i),a=c(e,t,r);return y(n,l,m(i,o,a)),a}}var p=this.object.index._compile(e,t);return function(e,t,r){var n=f(e,t,r),i=p(e,t,n),o=h(n,i),a=u(e,t,o),s=c(e,t,r);return m(n,i,m(o,a,s)),s}}if(!n.isSymbolNode(this.object))throw new TypeError("SymbolNode expected as object");return function(e,t,r){return y(e,s,c(e,t,r))}},a.prototype.forEach=function(e){e(this.object,"object",this),this.index&&e(this.index,"index",this),e(this.value,"value",this)},a.prototype.map=function(e){return new a(this._ifNode(e(this.object,"object",this)),this.index?this._ifNode(e(this.index,"index",this)):null,this._ifNode(e(this.value,"value",this)))},a.prototype.clone=function(){return new a(this.object,this.index,this.value)},a.prototype._toString=function(e){var t=this.object.toString(e),r=this.index?this.index.toString(e):"",n=this.value.toString(e);return s(this,e&&e.parenthesis)&&(n="("+n+")"),t+r+" = "+n},a.prototype.toJSON=function(){return{mathjs:"AssignmentNode",object:this.object,index:this.index,value:this.value}},a.fromJSON=function(e){return new a(e.object,e.index,e.value)},a.prototype.toHTML=function(e){var t=this.object.toHTML(e),r=this.index?this.index.toHTML(e):"",n=this.value.toHTML(e);return s(this,e&&e.parenthesis)&&(n='('+n+')'),t+r+'='+n},a.prototype._toTex=function(e){var t=this.object.toTex(e),r=this.index?this.index.toTex(e):"",n=this.value.toTex(e);return s(this,e&&e.parenthesis)&&(n="\\left(".concat(n,"\\right)")),t+r+":="+n},a}},function(e,t,s){"use strict";var u=s(2).forEach,c=s(2).map;t.name="BlockNode",t.path="expression.node",t.factory=function(n,e,t,r){var i=t(s(16)),a=t(s(102));function o(e){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if(!Array.isArray(e))throw new Error("Array expected");this.blocks=e.map(function(e){var t=e&&e.node,r=!e||void 0===e.visible||e.visible;if(!n.isNode(t))throw new TypeError('Property "node" must be a Node');if("boolean"!=typeof r)throw new TypeError('Property "visible" must be a boolean');return{node:t,visible:r}})}return(o.prototype=new i).type="BlockNode",o.prototype.isBlockNode=!0,o.prototype._compile=function(t,r){var e=c(this.blocks,function(e){return{eval:e.node._compile(t,r),visible:e.visible}});return function(r,n,i){var o=[];return u(e,function(e){var t=e.eval(r,n,i);e.visible&&o.push(t)}),new a(o)}},o.prototype.forEach=function(e){for(var t=0;t;')}).join('
    ')},o.prototype._toTex=function(t){return this.blocks.map(function(e){return e.node.toTex(t)+(e.visible?"":";")}).join("\\;\\;\n")},o}},function(e,t,o){"use strict";var c=o(52);t.name="ConditionalNode",t.path="expression.node",t.factory=function(a,e,t,r){var n=t(o(16)),s=t(o(24));function i(e,t,r){if(!(this instanceof i))throw new SyntaxError("Constructor must be called with the new operator");if(!a.isNode(e))throw new TypeError("Parameter condition must be a Node");if(!a.isNode(t))throw new TypeError("Parameter trueExpr must be a Node");if(!a.isNode(r))throw new TypeError("Parameter falseExpr must be a Node");this.condition=e,this.trueExpr=t,this.falseExpr=r}return(i.prototype=new n).type="ConditionalNode",i.prototype.isConditionalNode=!0,i.prototype._compile=function(e,t){var n=this.condition._compile(e,t),i=this.trueExpr._compile(e,t),o=this.falseExpr._compile(e,t);return function(e,t,r){return function(e){if("number"==typeof e||"boolean"==typeof e||"string"==typeof e)return!!e;if(e){if(a.isBigNumber(e))return!e.isZero();if(a.isComplex(e))return!(!e.re&&!e.im);if(a.isUnit(e))return!!e.value}if(null!=e)throw new TypeError('Unsupported type of condition "'+s(e)+'"');return!1}(n(e,t,r))?i(e,t,r):o(e,t,r)}},i.prototype.forEach=function(e){e(this.condition,"condition",this),e(this.trueExpr,"trueExpr",this),e(this.falseExpr,"falseExpr",this)},i.prototype.map=function(e){return new i(this._ifNode(e(this.condition,"condition",this)),this._ifNode(e(this.trueExpr,"trueExpr",this)),this._ifNode(e(this.falseExpr,"falseExpr",this)))},i.prototype.clone=function(){return new i(this.condition,this.trueExpr,this.falseExpr)},i.prototype._toString=function(e){var t=e&&e.parenthesis?e.parenthesis:"keep",r=c.getPrecedence(this,t),n=this.condition.toString(e),i=c.getPrecedence(this.condition,t);("all"===t||"OperatorNode"===this.condition.type||null!==i&&i<=r)&&(n="("+n+")");var o=this.trueExpr.toString(e),a=c.getPrecedence(this.trueExpr,t);("all"===t||"OperatorNode"===this.trueExpr.type||null!==a&&a<=r)&&(o="("+o+")");var s=this.falseExpr.toString(e),u=c.getPrecedence(this.falseExpr,t);return("all"===t||"OperatorNode"===this.falseExpr.type||null!==u&&u<=r)&&(s="("+s+")"),n+" ? "+o+" : "+s},i.prototype.toJSON=function(){return{mathjs:"ConditionalNode",condition:this.condition,trueExpr:this.trueExpr,falseExpr:this.falseExpr}},i.fromJSON=function(e){return new i(e.condition,e.trueExpr,e.falseExpr)},i.prototype.toHTML=function(e){var t=e&&e.parenthesis?e.parenthesis:"keep",r=c.getPrecedence(this,t),n=this.condition.toHTML(e),i=c.getPrecedence(this.condition,t);("all"===t||"OperatorNode"===this.condition.type||null!==i&&i<=r)&&(n='('+n+')');var o=this.trueExpr.toHTML(e),a=c.getPrecedence(this.trueExpr,t);("all"===t||"OperatorNode"===this.trueExpr.type||null!==a&&a<=r)&&(o='('+o+')');var s=this.falseExpr.toHTML(e),u=c.getPrecedence(this.falseExpr,t);return("all"===t||"OperatorNode"===this.falseExpr.type||null!==u&&u<=r)&&(s='('+s+')'),n+'?'+o+':'+s},i.prototype._toTex=function(e){return"\\begin{cases} {"+this.trueExpr.toTex(e)+"}, &\\quad{\\text{if }\\;"+this.condition.toTex(e)+"}\\\\{"+this.falseExpr.toTex(e)+"}, &\\quad{\\text{otherwise}}\\end{cases}"},i}},function(e,t,a){"use strict";var s=a(108),u=a(9).escape,l=a(2).forEach,p=a(2).join,c=a(4),m=a(52),h=a(13).setSafeProperty;t.name="FunctionAssignmentNode",t.path="expression.node",t.factory=function(n,e,t,f){var r=t(a(16));function i(e,t,r){if(!(this instanceof i))throw new SyntaxError("Constructor must be called with the new operator");if("string"!=typeof e)throw new TypeError('String expected for parameter "name"');if(!Array.isArray(t))throw new TypeError('Array containing strings or objects expected for parameter "params"');if(!n.isNode(r))throw new TypeError('Node expected for parameter "expr"');if(e in s)throw new Error('Illegal function name, "'+e+'" is a reserved keyword');this.name=e,this.params=t.map(function(e){return e&&e.name||e}),this.types=t.map(function(e){return e&&e.type||"any"}),this.expr=r}function o(e,t){var r=m.getPrecedence(e,t),n=m.getPrecedence(e.expr,t);return"all"===t||null!==n&&n<=r}return(i.prototype=new r).type="FunctionAssignmentNode",i.prototype.isFunctionAssignmentNode=!0,i.prototype._compile=function(e,t){var r=Object.create(t);l(this.params,function(e){r[e]=!0});var o=this.expr._compile(e,r),a=this.name,s=this.params,u=p(this.types,","),c=a+"("+p(this.params,", ")+")";return function(r,n,i){var e={};e[u]=function(){for(var e=Object.create(n),t=0;t'+u(this.params[n])+"");var i=this.expr.toHTML(e);return o(this,t)&&(i='('+i+')'),''+u(this.name)+'('+r.join(',')+')='+i},i.prototype._toTex=function(e){var t=e&&e.parenthesis?e.parenthesis:"keep",r=this.expr.toTex(e);return o(this,t)&&(r="\\left(".concat(r,"\\right)")),"\\mathrm{"+this.name+"}\\left("+this.params.map(c.toSymbol).join(",")+"\\right):="+r},i}},function(e,t,s){"use strict";var u=s(2).map,c=s(9).escape;t.name="IndexNode",t.path="expression.node",t.factory=function(h,e,t,r){var n=t(s(16)),i=t(s(101)),o=Array.isArray;function a(e,t){if(!(this instanceof a))throw new SyntaxError("Constructor must be called with the new operator");if(this.dimensions=e,this.dotNotation=t||!1,!o(e)||!e.every(h.isNode))throw new TypeError('Array containing Nodes expected for parameter "dimensions"');if(this.dotNotation&&!this.isObjectProperty())throw new Error("dotNotation only applicable for object properties");var r=function(){throw new Error("Property `IndexNode.object` is deprecated, use `IndexNode.fn` instead")};Object.defineProperty(this,"object",{get:r,set:r})}function d(e,t,r){return new i(h.isBigNumber(e)?e.toNumber():e,h.isBigNumber(t)?t.toNumber():t,h.isBigNumber(r)?r.toNumber():r)}return(a.prototype=new n).type="IndexNode",a.prototype.isIndexNode=!0,a.prototype._compile=function(p,m){var i=u(this.dimensions,function(e,o){if(h.isRangeNode(e)){if(e.needsEnd()){var t=Object.create(m);t.end=!0;var a=e.start._compile(p,t),s=e.end._compile(p,t),u=e.step?e.step._compile(p,t):function(){return 1};return function(e,t,r){var n=p.size(r).valueOf(),i=Object.create(t);return i.end=n[o],d(a(e,i,r),s(e,i,r),u(e,i,r))}}var n=e.start._compile(p,m),i=e.end._compile(p,m),c=e.step?e.step._compile(p,m):function(){return 1};return function(e,t,r){return d(n(e,t,r),i(e,t,r),c(e,t,r))}}if(h.isSymbolNode(e)&&"end"===e.name){var r=Object.create(m);r.end=!0;var f=e._compile(p,r);return function(e,t,r){var n=p.size(r).valueOf(),i=Object.create(t);return i.end=n[o],f(e,i,r)}}var l=e._compile(p,m);return function(e,t,r){return l(e,t,r)}});return function(t,r,n){var e=u(i,function(e){return e(t,r,n)});return p.index.apply(p,e)}},a.prototype.forEach=function(e){for(var t=0;t.'+c(this.getObjectProperty())+"":'['+t.join(',')+']'},a.prototype._toTex=function(t){var e=this.dimensions.map(function(e){return e.toTex(t)});return this.dotNotation?"."+this.getObjectProperty():"_{"+e.join(",")+"}"},a}},function(e,t,a){"use strict";function s(e){return(s="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}var u=a(9).stringify,c=a(9).escape,f=a(13).isSafeProperty,l=a(5).hasOwnProperty;t.name="ObjectNode",t.path="expression.node",t.factory=function(r,e,t,n){var i=t(a(16));function o(t){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if(this.properties=t||{},t&&("object"!==s(t)||!Object.keys(t).every(function(e){return r.isNode(t[e])})))throw new TypeError("Object containing Nodes expected")}return(o.prototype=new i).type="ObjectNode",o.prototype.isObjectNode=!0,o.prototype._compile=function(e,t){var o={};for(var r in this.properties)if(l(this.properties,r)){var n=u(r),i=JSON.parse(n);if(!f(this.properties,i))throw new Error('No access to property "'+i+'"');o[i]=this.properties[r]._compile(e,t)}return function(e,t,r){var n={};for(var i in o)l(o,i)&&(n[i]=o[i](e,t,r));return n}},o.prototype.forEach=function(e){for(var t in this.properties)Object.prototype.hasOwnProperty.call(this.properties, t)&&e(this.properties[t],"properties["+u(t)+"]",this)},o.prototype.map=function(e){var t={};for(var r in this.properties)Object.prototype.hasOwnProperty.call(this.properties, r)&&(t[r]=this._ifNode(e(this.properties[r],"properties["+u(r)+"]",this)));return new o(t)},o.prototype.clone=function(){var e={};for(var t in this.properties)Object.prototype.hasOwnProperty.call(this.properties, t)&&(e[t]=this.properties[t]);return new o(e)},o.prototype._toString=function(e){var t=[];for(var r in this.properties)Object.prototype.hasOwnProperty.call(this.properties, r)&&t.push(u(r)+": "+this.properties[r].toString(e));return"{"+t.join(", ")+"}"},o.prototype.toJSON=function(){return{mathjs:"ObjectNode",properties:this.properties}},o.fromJSON=function(e){return new o(e.properties)},o.prototype.toHTML=function(e){var t=[];for(var r in this.properties)Object.prototype.hasOwnProperty.call(this.properties, r)&&t.push(''+c(r)+':'+this.properties[r].toHTML(e));return'{'+t.join(',')+'}'},o.prototype._toTex=function(e){var t=[];for(var r in this.properties)Object.prototype.hasOwnProperty.call(this.properties, r)&&t.push("\\mathbf{"+r+":} & "+this.properties[r].toTex(e)+"\\\\");return"\\left\\{\\begin{array}{ll}".concat(t.join("\n"),"\\end{array}\\right\\}")},o}},function(e,t,s){"use strict";var u=s(52);t.name="RangeNode",t.path="expression.node",t.factory=function(n,e,t,r){var i=t(s(16));function o(e,t,r){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if(!n.isNode(e))throw new TypeError("Node expected");if(!n.isNode(t))throw new TypeError("Node expected");if(r&&!n.isNode(r))throw new TypeError("Node expected");if(3('+n+')'),t=n,this.step){var i=this.step.toHTML(e);r.step&&(i='('+i+')'),t+=':'+i}var o=this.end.toHTML(e);return r.end&&(o='('+o+')'),t+=':'+o},o.prototype._toTex=function(e){var t=a(this,e&&e.parenthesis?e.parenthesis:"keep"),r=this.start.toTex(e);if(t.start&&(r="\\left(".concat(r,"\\right)")),this.step){var n=this.step.toTex(e);t.step&&(n="\\left(".concat(n,"\\right)")),r+=":"+n}var i=this.end.toTex(e);return t.end&&(i="\\left(".concat(i,"\\right)")),r+=":"+i},o}},function(e,t,a){"use strict";var s=a(52),u=a(4),f=a(9).escape;t.name="RelationalNode",t.path="expression.node",t.factory=function(e,t,r,n){var i=r(a(16)),c=a(13).getSafeProperty;function o(e,t){if(!(this instanceof o))throw new SyntaxError("Constructor must be called with the new operator");if(!Array.isArray(e))throw new TypeError("Parameter conditionals must be an array");if(!Array.isArray(t))throw new TypeError("Parameter params must be an array");if(e.length!==t.length-1)throw new TypeError("Parameter params must contain exactly one more element than parameter conditionals");this.conditionals=e,this.params=t}return(o.prototype=new i).type="RelationalNode",o.prototype.isRelationalNode=!0,o.prototype._compile=function(a,t){var s=this,u=this.params.map(function(e){return e._compile(a,t)});return function(e,t,r){for(var n,i=u[0](e,t,r),o=0;o",smallerEq:"<=",largerEq:">="},r=e[0],a=0;a('+e.toHTML(n)+')':e.toHTML(n)}),t={equal:"==",unequal:"!=",smaller:"<",larger:">",smallerEq:"<=",largerEq:">="},r=e[0],a=0;a'+f(t[this.conditionals[a]])+""+e[a+1];return r},o.prototype._toTex=function(n){for(var i=n&&n.parenthesis?n.parenthesis:"keep",o=s.getPrecedence(this,i),e=this.params.map(function(e,t){var r=s.getPrecedence(e,i);return"all"===i||null!==r&&r<=o?"\\left("+e.toString(n)+"\right)":e.toString(n)}),t=e[0],r=0;rr-1&&(void 0===o[n+1]&&(o[n+1]=0),o[n+1]+=o[n]/r|0,o[n]%=r)}return o.reverse()}M.absoluteValue=M.abs=function(){var e=new this.constructor(this);return e.s<0&&(e.s=1),U(e)},M.ceil=function(){return U(new this.constructor(this),this.e+1,2)},M.comparedTo=M.cmp=function(e){var t,r,n,i,o=this.d,a=(e=new this.constructor(e)).d,s=this.s,u=e.s;if(!o||!a)return s&&u?s!==u?s:o===a?0:!o^s<0?1:-1:NaN;if(!o[0]||!a[0])return o[0]?s:a[0]?-u:0;if(s!==u)return s;if(this.e!==e.e)return this.e>e.e^s<0?1:-1;for(t=0,r=(n=o.length)<(i=a.length)?n:i;ta[t]^s<0?1:-1;return n===i?0:ithis.d.length-2},M.isNaN=function(){return!this.s},M.isNegative=M.isNeg=function(){return this.s<0},M.isPositive=M.isPos=function(){return 0t&&(t=this.e+1)):t=NaN,t},M.round=function(){var e=this.constructor;return U(new e(this),this.e+1,e.rounding)},M.sine=M.sin=function(){var e,t,r=this,n=r.constructor;return r.isFinite()?r.isZero()?new n(r):(e=n.precision,t=n.rounding,n.precision=e+Math.max(r.e,r.sd())+R,n.rounding=1,r=function(e,t){var r,n=t.d.length;if(n<3)return Z(e,2,t,t);r=16<(r=1.4*Math.sqrt(n))?16:0|r,t=t.times(Math.pow(5,-r)),t=Z(e,2,t,t);for(var i,o=new e(5),a=new e(16),s=new e(20);r--;)i=t.times(t),t=t.times(o.plus(i.times(a.times(i).minus(s))));return t}(n,V(n,r)),n.precision=e,n.rounding=t,U(2=e.d.length-1&&(r=c<0?-c:c)<=9007199254740991)return i=j(u,s,r,n),e.s<0?new u(1).div(i):U(i,n,o);if((a=s.s)<0){if(tu.maxE+1||t=i.toExpPos):(A(e,1,d),void 0===t?t=i.rounding:A(t,0,8),_(n=U(new i(n),e,t),e<=n.e||n.e<=i.toExpNeg,e)),n.isNeg()&&!n.isZero()?"-"+r:r},M.toSignificantDigits=M.toSD=function(e,t){var r=this.constructor;return void 0===e?(e=r.precision,t=r.rounding):(A(e,1,d),void 0===t?t=r.rounding:A(t,0,8)),U(new r(this),e,t)},M.toString=function(){var e=this.constructor,t=_(this,this.e<=e.toExpNeg||this.e>=e.toExpPos);return this.isNeg()&&!this.isZero()?"-"+t:t},M.truncated=M.trunc=function(){return U(new this.constructor(this),this.e+1,1)},M.valueOf=M.toJSON=function(){var e=this.constructor,t=_(this,this.e<=e.toExpNeg||this.e>=e.toExpPos);return this.isNeg()?"-"+t:t};var T=function(){function C(e,t,r){var n,i=0,o=e.length;for(e=e.slice();o--;)n=e[o]*t+i,e[o]=n%r|0,i=n/r|0;return i&&e.unshift(i),e}function z(e,t,r,n){var i,o;if(r!=n)o=nt[i]?1:-1;break}return o}function B(e,t,r,n){for(var i=0;r--;)e[r]-=i,i=e[r](T[u]||0)&&s--,null==r?(x=r=S.precision,n=S.rounding):x=i?r+(e.e-t.e)+1:r,x<0)d.push(1),l=!0;else{if(x=x/f+2|0,u=0,1==E){for(_=_[c=0],x++;(u=o/2&&++M;c=0,(a=z(_,y,E,g))<0?(v=y[0],E!=g&&(v=v*o+(y[1]||0)),1<(c=v/M|0)?(o<=c&&(c=o-1),1==(a=z(p=C(_,c,o),y,m=p.length,g=y.length))&&(c--,B(p,Em.maxE?(e.d=null,e.e=NaN):e.ee.constructor.maxE?(e.d=null,e.e=NaN):e.ei-1;)l[r]=0,r||(++o,l.unshift(1));for(u=l.length;!l[u-1];--u);for(a=0,f="";au)for(o-=u;o--;)f+="0";else ot)return e.length=t,!0}function W(e){return new this(e).abs()}function Y(e){return new this(e).acos()}function X(e){return new this(e).acosh()}function Q(e,t){return new this(e).plus(t)}function K(e){return new this(e).asin()}function ee(e){return new this(e).asinh()}function te(e){return new this(e).atan()}function re(e){return new this(e).atanh()}function ne(e,t){e=new this(e),t=new this(t);var r,n=this.precision,i=this.rounding,o=n+4;return e.s&&t.s?e.d||t.d?!t.d||e.isZero()?(r=t.s<0?B(this,n,i):new this(0)).s=e.s:!e.d||t.isZero()?(r=B(this,o,1).times(.5)).s=e.s:r=t.s<0?(this.precision=o,this.rounding=1,r=this.atan(T(e,t,o,1)),t=B(this,o,1),this.precision=n,this.rounding=i,e.s<0?r.minus(t):r.plus(t)):this.atan(T(e,t,o,1)):(r=B(this,o,1).times(0=o+1}}return 0===e.length?function(e){return 0===e.length}:1===e.length?(t=V(e[0]),function(e){return t(e[0])&&1===e.length}):2===e.length?(t=V(e[0]),n=V(e[1]),function(e){return t(e[0])&&n(e[1])&&2===e.length}):(r=e.map(V),function(e){for(var t=0;tl?(n=new TypeError("Too many arguments in function "+a+" (expected: "+l+", actual: "+r.length+")")).data={category:"tooManyArgs",fn:a,index:r.length,expectedLength:l}:(n=new TypeError('Arguments of type "'+r.join(", ")+'" do not match any of the defined signatures of function '+a+".")).data={category:"mismatch",actual:r.map(p)},n}function c(e){for(var t=999,r=0;r>=1)1&t&&(n=n*e%r);return n}(10,r,t),o=0;o<300;o++){if(n===i)return o;n=10*n%t,i=10*i%t}return 0}(0,n,i),a=-1===this.s?"-":"";if(a+=r/n|0,r%=n,(r*=10)&&(a+="."),i){for(var s=o;s--;)a+=r/n|0,r%=n,r*=10;a+="(";for(s=i;s--;)a+=r/n|0,r%=n,r*=10;a+=")"}else for(s=e;r&&s--;)a+=r/n|0,r%=n,r*=10;return a}},void 0===(a=function(){return c}.apply(o,[]))||(i.exports=a)}()},function(e,t,r){"use strict";e.exports=[r(82),r(48),r(179),r(180),r(181),r(182),r(28),r(101),r(183),r(1),r(184),r(63)]},function(e,t,r){"use strict";t.isBoolean=function(e){return"boolean"==typeof e}},function(e,t,a){"use strict";var s=a(30),x=a(8),y=s.array,E=s.object,A=s.string,S=s.number,O=Array.isArray,T=S.isNumber,_=S.isInteger,C=A.isString,z=y.validateIndex;t.name="SparseMatrix",t.path="type",t.factory=function(b,e,t,w){var r=t(a(82)),N=t(a(11)),n=t(a(63));function M(e,t){if(!(this instanceof M))throw new SyntaxError("Constructor must be called with the new operator");if(t&&!C(t))throw new Error("Invalid datatype: "+t);if(b.isMatrix(e))r=this,i=t,"SparseMatrix"===(n=e).type?(r._values=n._values?E.clone(n._values):void 0,r._index=E.clone(n._index),r._ptr=E.clone(n._ptr),r._size=E.clone(n._size),r._datatype=i||n._datatype):o(r,n.valueOf(),i||n._datatype);else if(e&&O(e.index)&&O(e.ptr)&&O(e.size))this._values=e.values,this._index=e.index,this._ptr=e.ptr,this._size=e.size,this._datatype=t||e.datatype;else if(O(e))o(this,e,t);else{if(e)throw new TypeError("Unsupported type of data ("+s.types.type(e)+")");this._values=[],this._index=[],this._ptr=[0],this._size=[0,0],this._datatype=t}var r,n,i}function o(e,t,r){e._values=[],e._index=[],e._ptr=[],e._datatype=r;var n=t.length,i=0,o=N,a=0;if(C(r)&&(o=w.find(N,[r,r])||N,a=w.convert(0,r)),0");for(var c=t.min()[0],f=t.min()[1],l=i[0],p=i[1],m=0;m "+(this._values?A.format(this._values[u],e):"X")}return i},M.prototype.toString=function(){return A.format(this.toArray())},M.prototype.toJSON=function(){return{mathjs:"SparseMatrix",values:this._values,index:this._index,ptr:this._ptr,size:this._size,datatype:this._datatype}},M.prototype.diagonal=function(e){if(e){if(b.isBigNumber(e)&&(e=e.toNumber()),!T(e)||!_(e))throw new TypeError("The parameter k must be an integer number")}else e=0;var t=0=e&&(c(a.value,0)||r(a.key,a.value,this)),(a=n.extractMinimum())&&o.push(a);for(var s=0;si))for(var l=s[c+1];f=U?T[I+m]-=y:0!==T[I+m]&&(T[I+m]=T[k+m]+Z)}for(g=$;g>t},"BigNumber, BigNumber":v,"SparseMatrix, SparseMatrix":function(e,t){return f(e,t,d,!1)},"SparseMatrix, DenseMatrix":function(e,t){return c(t,e,d,!0)},"DenseMatrix, SparseMatrix":function(e,t){return u(e,t,d,!1)},"DenseMatrix, DenseMatrix":function(e,t){return m(e,t,d)},"Array, Array":function(e,t){return d(o(e),o(t)).valueOf()},"Array, Matrix":function(e,t){return d(o(e),t)},"Matrix, Array":function(e,t){return d(e,o(t))},"SparseMatrix, number | BigNumber":function(e,t){return a(t,0)?e.clone():p(e,t,d,!1)},"DenseMatrix, number | BigNumber":function(e,t){return a(t,0)?e.clone():h(e,t,d,!1)},"number | BigNumber, SparseMatrix":function(e,t){return a(e,0)?s(t.size(),t.storage()):l(t,e,d,!0)},"number | BigNumber, DenseMatrix":function(e,t){return a(e,0)?s(t.size(),t.storage()):h(t,e,d,!0)},"Array, number | BigNumber":function(e,t){return d(o(e),t).valueOf()},"number | BigNumber, Array":function(e,t){return d(e,o(t)).valueOf()}});return d.toTex={2:"\\left(${args[0]}".concat(i.operators.rightArithShift,"${args[1]}\\right)")},d}},function(e,t,r){"use strict";e.exports=function(e,t){if(e.isFinite()&&!e.isInteger()||t.isFinite()&&!t.isInteger())throw new Error("Integers expected in function rightArithShift");var r=e.constructor;return e.isNaN()||t.isNaN()||t.isNegative()&&!t.isZero()?new r(NaN):e.isZero()||t.isZero()?e:t.isFinite()?t.lt(55)?e.div(Math.pow(2,t.toNumber())+"").floor():e.div(new r(2).pow(t)).floor():e.isNegative()?new r(-1):e.isFinite()?new r(0):new r(NaN)}},function(e,t,y){"use strict";var g=y(3).isInteger;t.name="rightLogShift",t.factory=function(e,t,r,n){var i=y(4),o=r(y(1)),a=r(y(11)),s=r(y(42)),u=r(y(32)),c=r(y(25)),f=r(y(91)),l=r(y(39)),p=r(y(20)),m=r(y(7)),h=r(y(6)),d=n("rightLogShift",{"number, number":function(e,t){if(!g(e)||!g(t))throw new Error("Integers expected in function rightLogShift");return e>>>t},"SparseMatrix, SparseMatrix":function(e,t){return f(e,t,d,!1)},"SparseMatrix, DenseMatrix":function(e,t){return c(t,e,d,!0)},"DenseMatrix, SparseMatrix":function(e,t){return u(e,t,d,!1)},"DenseMatrix, DenseMatrix":function(e,t){return m(e,t,d)},"Array, Array":function(e,t){return d(o(e),o(t)).valueOf()},"Array, Matrix":function(e,t){return d(o(e),t)},"Matrix, Array":function(e,t){return d(e,o(t))},"SparseMatrix, number | BigNumber":function(e,t){return a(t,0)?e.clone():p(e,t,d,!1)},"DenseMatrix, number | BigNumber":function(e,t){return a(t,0)?e.clone():h(e,t,d,!1)},"number | BigNumber, SparseMatrix":function(e,t){return a(e,0)?s(t.size(),t.storage()):l(t,e,d,!0)},"number | BigNumber, DenseMatrix":function(e,t){return a(e,0)?s(t.size(),t.storage()):h(t,e,d,!0)},"Array, number | BigNumber":function(e,t){return d(o(e),t).valueOf()},"number | BigNumber, Array":function(e,t){return d(e,o(t)).valueOf()}});return d.toTex={2:"\\left(${args[0]}".concat(i.operators.rightLogShift,"${args[1]}\\right)")},d}},function(e,t,r){"use strict";e.exports=[r(254),r(255),r(135),r(256)]},function(e,t,c){"use strict";t.name="bellNumbers",t.factory=function(e,t,r,n){var i=r(c(14)),o=r(c(135)),a=r(c(60)),s=r(c(36)),u=n("bellNumbers",{"number | BigNumber":function(e){if(!s(e)||a(e))throw new TypeError("Non-negative integer value expected in function bellNumbers");for(var t=0,r=0;r<=e;r++)t=i(t,o(e,r));return t}});return u.toTex={1:"\\mathrm{B}_{${args[0]}}"},u}},function(e,t,f){"use strict";t.name="composition",t.factory=function(e,t,r,n){var i=r(f(75)),o=r(f(17)),a=r(f(72)),s=r(f(36)),u=r(f(33)),c=n("composition",{"number | BigNumber, number | BigNumber":function(e,t){if(!(s(e)&&a(e)&&s(t)&&a(t)))throw new TypeError("Positive integer value expected in function composition");if(u(t,e))throw new TypeError("k must be less than or equal to n in function composition");return i(o(e,-1),o(t,-1))}});return c.toTex=void 0,c}},function(e,t,l){"use strict";t.name="catalan",t.factory=function(e,t,r,n){var i=r(l(14)),o=r(l(44)),a=r(l(10)),s=r(l(75)),u=r(l(60)),c=r(l(36)),f=n("catalan",{"number | BigNumber":function(e){if(!c(e)||u(e))throw new TypeError("Non-negative integer value expected in function catalan");return o(s(a(e,2),e),i(e,1))}});return f.toTex={1:"\\mathrm{C}_{${args[0]}}"},f}},function(e,t,r){"use strict";e.exports=[r(258),r(70),r(259),r(260)]},function(e,t,r){"use strict";var o=r(0);t.name="arg",t.factory=function(t,e,r,n){var i=n("arg",{number:function(e){return Math.atan2(0,e)},BigNumber:function(e){return t.BigNumber.atan2(0,e)},Complex:function(e){return e.arg()},"Array | Matrix":function(e){return o(e,i)}});return i.toTex={1:"\\arg\\left(${args[0]}\\right)"},i}},function(e,t,r){"use strict";var o=r(0);t.name="im",t.factory=function(t,e,r,n){var i=n("im",{number:function(e){return 0},BigNumber:function(e){return new t.BigNumber(0)},Complex:function(e){return e.im},"Array | Matrix":function(e){return o(e,i)}});return i.toTex={1:"\\Im\\left\\lbrace${args[0]}\\right\\rbrace"},i}},function(e,t,r){"use strict";var o=r(0);t.name="re",t.factory=function(e,t,r,n){var i=n("re",{number:function(e){return e},BigNumber:function(e){return e},Complex:function(e){return e.re},"Array | Matrix":function(e){return o(e,i)}});return i.toTex={1:"\\Re\\left\\lbrace${args[0]}\\right\\rbrace"},i}},function(e,t,r){"use strict";e.exports=[r(262),r(263)]},function(e,t,n){"use strict";t.name="intersect",t.factory=function(t,_,e,r){var C=e(n(23)),z=e(n(14)),B=e(n(17)),i=e(n(1)),k=e(n(10)),I=e(n(21)),P=e(n(12)),R=e(n(15)),U=e(n(40)),q=e(n(11)),o=r("intersect",{"Array, Array, Array":function(e,t,r){if(!j(e))throw new TypeError("Array with 3 numbers or BigNumbers expected for first argument");if(!j(t))throw new TypeError("Array with 3 numbers or BigNumbers expected for second argument");if(!(4===(n=r).length&&E(n[0])&&E(n[1])&&E(n[2])&&E(n[3])))throw new TypeError("Array with 4 numbers expected as third argument");var n,i,o,a,s,u,c,f,l,p,m,h,d,y,g,v,x,b,w,N,M;return i=e[0],o=e[1],a=e[2],s=t[0],u=t[1],c=t[2],f=r[0],l=r[1],p=r[2],m=r[3],h=I(i,f),d=I(s,f),y=I(o,l),g=I(u,l),v=I(a,p),x=I(c,p),b=P(R(R(R(m,h),y),v),R(R(R(B(B(d,g),x),h),y),v)),w=B(i,I(b,R(s,i))),N=B(o,I(b,R(u,o))),M=B(a,I(b,R(c,a))),[w,N,M]},"Array, Array, Array, Array":function(e,t,r,n){if(2===e.length){if(!D(e))throw new TypeError("Array with 2 numbers or BigNumbers expected for first argument");if(!D(t))throw new TypeError("Array with 2 numbers or BigNumbers expected for second argument");if(!D(r))throw new TypeError("Array with 2 numbers or BigNumbers expected for third argument");if(!D(n))throw new TypeError("Array with 2 numbers or BigNumbers expected for fourth argument");return function(e,t,r,n){var i=e,o=r,a=R(i,t),s=R(o,n),u=R(I(a[0],s[1]),I(s[0],a[1]));if(U(C(u),_.epsilon))return null;var c=I(s[0],i[1]),f=I(s[1],i[0]),l=I(s[0],o[1]),p=I(s[1],o[0]),m=P(B(R(R(c,f),l),p),u);return z(k(a,m),i)}(e,t,r,n)}if(3!==e.length)throw new TypeError("Arrays with two or thee dimensional points expected");if(!j(e))throw new TypeError("Array with 3 numbers or BigNumbers expected for first argument");if(!j(t))throw new TypeError("Array with 3 numbers or BigNumbers expected for second argument");if(!j(r))throw new TypeError("Array with 3 numbers or BigNumbers expected for third argument");if(!j(n))throw new TypeError("Array with 3 numbers or BigNumbers expected for fourth argument");return i=e[0],o=e[1],a=e[2],s=t[0],u=t[1],c=t[2],f=r[0],l=r[1],p=r[2],m=n[0],h=n[1],d=n[2],y=F(i,f,m,f,o,l,h,l,a,p,d,p),g=F(m,f,s,i,h,l,u,o,d,p,c,a),v=F(i,f,s,i,o,l,u,o,a,p,c,a),x=F(m,f,m,f,h,l,h,l,d,p,d,p),b=F(s,i,s,i,u,o,u,o,c,a,c,a),w=P(R(I(y,g),I(v,x)),R(I(b,x),I(g,g))),N=P(B(y,I(w,g)),x),M=B(i,I(w,R(s,i))),E=B(o,I(w,R(u,o))),A=B(a,I(w,R(c,a))),S=B(f,I(N,R(m,f))),O=B(l,I(N,R(h,l))),T=B(p,I(N,R(d,p))),q(M,S)&&q(E,O)&&q(A,T)?[M,E,A]:null;var i,o,a,s,u,c,f,l,p,m,h,d,y,g,v,x,b,w,N,M,E,A,S,O,T},"Matrix, Matrix, Matrix":function(e,t,r){return i(o(e.valueOf(),t.valueOf(),r.valueOf()))},"Matrix, Matrix, Matrix, Matrix":function(e,t,r,n){return i(o(e.valueOf(),t.valueOf(),r.valueOf(),n.valueOf()))}});function E(e){return"number"==typeof e||t.isBigNumber(e)}function D(e){return 2===e.length&&E(e[0])&&E(e[1])}function j(e){return 3===e.length&&E(e[0])&&E(e[1])&&E(e[2])}function F(e,t,r,n,i,o,a,s,u,c,f,l){var p=I(R(e,t),R(r,n)),m=I(R(i,o),R(a,s)),h=I(R(u,c),R(f,l));return B(B(p,m),h)}return o}},function(e,t,b){"use strict";t.name="distance",t.factory=function(t,e,r,n){var l=r(b(17)),p=r(b(15)),m=r(b(21)),h=r(b(12)),s=r(b(34)),d=r(b(45)),u=r(b(23));function i(e){return"number"==typeof e||t.isBigNumber(e)}function c(e){return e.constructor!==Array&&(e=f(e)),i(e[0])&&i(e[1])}function o(e){return e.constructor!==Array&&(e=f(e)),i(e[0])&&i(e[1])&&i(e[2])}function a(e){return e.constructor!==Array&&(e=f(e)),i(e[0])&&i(e[1])&&i(e[2])&&i(e[3])&&i(e[4])&&i(e[5])}function f(e){for(var t=Object.keys(e),r=[],n=0;nn)return e.substring(0,n);if(e.lengthh)throw new Error("computing square root of matrix: iterative method could not converge")}while(d>>=1;return(e+r)/t}},p.exports.resetGlobal=function(){Math.random=t},f(Math.random(),i)}).call(this,t(295))},function(e,t){var r;r=function(){return this}();try{r=r||new Function("return this")()}catch(e){"object"==typeof window&&(r=window)}e.exports=r},function(e,t,o){"use strict";t.name="random",t.factory=function(e,t,r,n){var i=r(o(96))("uniform").random;return i.toTex=void 0,i}},function(e,t,o){"use strict";t.name="randomInt",t.factory=function(e,t,r,n){var i=r(o(96))("uniform").randomInt;return i.toTex=void 0,i}},function(e,t,r){"use strict";e.exports=[r(54),r(29),r(140),r(299),r(50),r(300),r(33),r(128),r(40),r(301),r(124)]},function(e,t,a){"use strict";t.name="deepEqual",t.factory=function(e,t,r,n){var o=r(a(50)),i=n("deepEqual",{"any, any":function(e,t){return function e(t,r){if(Array.isArray(t)){if(Array.isArray(r)){var n=t.length;if(n!==r.length)return!1;for(var i=0;ie[n+1].length&&(t=e[n],e[n]=e[n+1],e[n+1]=t);return e}(r)}});function u(e,t){for(var r=[],n=0;nn&&(n=t[o],r=[o])}return r}}},function(e,t,u){"use strict";var c=u(46);t.name="prod",t.factory=function(e,t,r,n){var i=r(u(21)),o=r(u(37)),a=n("prod",{"Array | Matrix":s,"Array | Matrix, number | BigNumber":function(e,t){throw new Error("prod(A, dim) is not yet supported")},"...":function(e){return s(e)}});return a.toTex=void 0,a;function s(e){var r;if(c(e,function(t){try{r=void 0===r?t:i(r,t)}catch(e){throw o(e,"prod",t)}}),void 0===r)throw new Error("Cannot calculate prod of an empty array");return r}}},function(e,t,n){"use strict";var d=n(3).isInteger,S=n(3).isNumber,O=n(2).flatten,y=n(47);t.name="quantileSeq",t.factory=function(m,e,t,r){var w=t(n(14)),N=t(n(10)),M=t(n(93)),E=t(n(54));function h(e,t,r){var n=O(e),i=n.length;if(0===i)throw new Error("Cannot calculate quantile of an empty sequence");if(S(t)){var o=t*(i-1),a=o%1;if(0===a){var s=r?n[o]:M(n,o);return A(s),s}var u,c,f=Math.floor(o);if(r)u=n[f],c=n[f+1];else{c=M(n,f+1),u=n[f];for(var l=0;l1, -1 when x<0, and 0 when x=0.",examples:["sign(3.5)","sign(-4.2)","sign(0)"],seealso:["abs"]}},function(e,t){e.exports={name:"sqrt",category:"Arithmetic",syntax:["sqrt(x)"],description:"Compute the square root value. If x = y * y, then y is the square root of x.",examples:["sqrt(25)","5 * 5","sqrt(-1)"],seealso:["square","sqrtm","multiply","nthRoot","nthRoots","pow"]}},function(e,t){e.exports={name:"sqrtm",category:"Arithmetic",syntax:["sqrtm(x)"],description:"Calculate the principal square root of a square matrix. The principal square root matrix `X` of another matrix `A` is such that `X * X = A`.",examples:["sqrtm([[1, 2], [3, 4]])"],seealso:["sqrt","abs","square","multiply"]}},function(e,t){e.exports={name:"square",category:"Arithmetic",syntax:["square(x)"],description:"Compute the square of a value. The square of x is x * x.",examples:["square(3)","sqrt(9)","3^2","3 * 3"],seealso:["multiply","pow","sqrt","cube"]}},function(e,t){e.exports={name:"subtract",category:"Operators",syntax:["x - y","subtract(x, y)"],description:"subtract two values.",examples:["a = 5.3 - 2","a + 2","2/3 - 1/6","2 * 3 - 3","2.1 km - 500m"],seealso:["add"]}},function(e,t){e.exports={name:"unaryMinus",category:"Operators",syntax:["-x","unaryMinus(x)"],description:"Inverse the sign of a value. Converts booleans and strings to numbers.",examples:["-4.5","-(-5.6)",'-"22"'],seealso:["add","subtract","unaryPlus"]}},function(e,t){e.exports={name:"unaryPlus",category:"Operators",syntax:["+x","unaryPlus(x)"],description:"Converts booleans and strings to numbers.",examples:["+true",'+"2"'],seealso:["add","subtract","unaryMinus"]}},function(e,t){e.exports={name:"xgcd",category:"Arithmetic",syntax:["xgcd(a, b)"],description:"Calculate the extended greatest common divisor for two values. The result is an array [d, x, y] with 3 entries, where d is the greatest common divisor, and d = x * a + y * b.",examples:["xgcd(8, 12)","gcd(8, 12)","xgcd(36163, 21199)"],seealso:["gcd","lcm"]}},function(e,t){e.exports={name:"bitAnd",category:"Bitwise",syntax:["x & y","bitAnd(x, y)"],description:"Bitwise AND operation. Performs the logical AND operation on each pair of the corresponding bits of the two given values by multiplying them. If both bits in the compared position are 1, the bit in the resulting binary representation is 1, otherwise, the result is 0",examples:["5 & 3","bitAnd(53, 131)","[1, 12, 31] & 42"],seealso:["bitNot","bitOr","bitXor","leftShift","rightArithShift","rightLogShift"]}},function(e,t){e.exports={name:"bitNot",category:"Bitwise",syntax:["~x","bitNot(x)"],description:"Bitwise NOT operation. Performs a logical negation on each bit of the given value. Bits that are 0 become 1, and those that are 1 become 0.",examples:["~1","~2","bitNot([2, -3, 4])"],seealso:["bitAnd","bitOr","bitXor","leftShift","rightArithShift","rightLogShift"]}},function(e,t){e.exports={name:"bitOr",category:"Bitwise",syntax:["x | y","bitOr(x, y)"],description:"Bitwise OR operation. Performs the logical inclusive OR operation on each pair of corresponding bits of the two given values. The result in each position is 1 if the first bit is 1 or the second bit is 1 or both bits are 1, otherwise, the result is 0.",examples:["5 | 3","bitOr([1, 2, 3], 4)"],seealso:["bitAnd","bitNot","bitXor","leftShift","rightArithShift","rightLogShift"]}},function(e,t){e.exports={name:"bitXor",category:"Bitwise",syntax:["bitXor(x, y)"],description:"Bitwise XOR operation, exclusive OR. Performs the logical exclusive OR operation on each pair of corresponding bits of the two given values. The result in each position is 1 if only the first bit is 1 or only the second bit is 1, but will be 0 if both are 0 or both are 1.",examples:["bitOr(1, 2)","bitXor([2, 3, 4], 4)"],seealso:["bitAnd","bitNot","bitOr","leftShift","rightArithShift","rightLogShift"]}},function(e,t){e.exports={name:"leftShift",category:"Bitwise",syntax:["x << y","leftShift(x, y)"],description:"Bitwise left logical shift of a value x by y number of bits.",examples:["4 << 1","8 >> 1"],seealso:["bitAnd","bitNot","bitOr","bitXor","rightArithShift","rightLogShift"]}},function(e,t){e.exports={name:"rightArithShift",category:"Bitwise",syntax:["x >> y","rightArithShift(x, y)"],description:"Bitwise right arithmetic shift of a value x by y number of bits.",examples:["8 >> 1","4 << 1","-12 >> 2"],seealso:["bitAnd","bitNot","bitOr","bitXor","leftShift","rightLogShift"]}},function(e,t){e.exports={name:"rightLogShift",category:"Bitwise",syntax:["x >>> y","rightLogShift(x, y)"],description:"Bitwise right logical shift of a value x by y number of bits.",examples:["8 >>> 1","4 << 1","-12 >>> 2"],seealso:["bitAnd","bitNot","bitOr","bitXor","leftShift","rightArithShift"]}},function(e,t){e.exports={name:"bellNumbers",category:"Combinatorics",syntax:["bellNumbers(n)"],description:"The Bell Numbers count the number of partitions of a set. A partition is a pairwise disjoint subset of S whose union is S. `bellNumbers` only takes integer arguments. The following condition must be enforced: n >= 0.",examples:["bellNumbers(3)","bellNumbers(8)"],seealso:["stirlingS2"]}},function(e,t){e.exports={name:"catalan",category:"Combinatorics",syntax:["catalan(n)"],description:"The Catalan Numbers enumerate combinatorial structures of many different types. catalan only takes integer arguments. The following condition must be enforced: n >= 0.",examples:["catalan(3)","catalan(8)"],seealso:["bellNumbers"]}},function(e,t){e.exports={name:"composition",category:"Combinatorics",syntax:["composition(n, k)"],description:"The composition counts of n into k parts. composition only takes integer arguments. The following condition must be enforced: k <= n.",examples:["composition(5, 3)"],seealso:["combinations"]}},function(e,t){e.exports={name:"stirlingS2",category:"Combinatorics",syntax:["stirlingS2(n, k)"],description:"he Stirling numbers of the second kind, counts the number of ways to partition a set of n labelled objects into k nonempty unlabelled subsets. `stirlingS2` only takes integer arguments. The following condition must be enforced: k <= n. If n = k or k = 1, then s(n,k) = 1.",examples:["stirlingS2(5, 3)"],seealso:["bellNumbers"]}},function(e,t){e.exports={name:"config",category:"Core",syntax:["config()","config(options)"],description:"Get configuration or change configuration.",examples:["config()","1/3 + 1/4",'config({number: "Fraction"})',"1/3 + 1/4"],seealso:[]}},function(e,t){e.exports={name:"import",category:"Core",syntax:["import(functions)","import(functions, options)"],description:"Import functions or constants from an object.",examples:["import({myFn: f(x)=x^2, myConstant: 32 })","myFn(2)","myConstant"],seealso:[]}},function(e,t){e.exports={name:"typed",category:"Core",syntax:["typed(signatures)","typed(name, signatures)"],description:"Create a typed function.",examples:['double = typed({ "number, number": f(x)=x+x })',"double(2)",'double("hello")'],seealso:[]}},function(e,t){e.exports={name:"arg",category:"Complex",syntax:["arg(x)"],description:"Compute the argument of a complex value. If x = a+bi, the argument is computed as atan2(b, a).",examples:["arg(2 + 2i)","atan2(3, 2)","arg(2 + 3i)"],seealso:["re","im","conj","abs"]}},function(e,t){e.exports={name:"conj",category:"Complex",syntax:["conj(x)"],description:"Compute the complex conjugate of a complex value. If x = a+bi, the complex conjugate is a-bi.",examples:["conj(2 + 3i)","conj(2 - 3i)","conj(-5.2i)"],seealso:["re","im","abs","arg"]}},function(e,t){e.exports={name:"re",category:"Complex",syntax:["re(x)"],description:"Get the real part of a complex number.",examples:["re(2 + 3i)","im(2 + 3i)","re(-5.2i)","re(2.4)"],seealso:["im","conj","abs","arg"]}},function(e,t){e.exports={name:"im",category:"Complex",syntax:["im(x)"],description:"Get the imaginary part of a complex number.",examples:["im(2 + 3i)","re(2 + 3i)","im(-5.2i)","im(2.4)"],seealso:["re","conj","abs","arg"]}},function(e,t){e.exports={name:"eval",category:"Expression",syntax:["eval(expression)","eval([expr1, expr2, expr3, ...])"],description:"Evaluate an expression or an array with expressions.",examples:['eval("2 + 3")','eval("sqrt(" + 4 + ")")'],seealso:[]}},function(e,t){e.exports={name:"help",category:"Expression",syntax:["help(object)","help(string)"],description:"Display documentation on a function or data type.",examples:["help(sqrt)",'help("complex")'],seealso:[]}},function(e,t){e.exports={name:"distance",category:"Geometry",syntax:["distance([x1, y1], [x2, y2])","distance([[x1, y1], [x2, y2])"],description:"Calculates the Euclidean distance between two points.",examples:["distance([0,0], [4,4])","distance([[0,0], [4,4]])"],seealso:[]}},function(e,t){e.exports={name:"intersect",category:"Geometry",syntax:["intersect(expr1, expr2, expr3, expr4)","intersect(expr1, expr2, expr3)"],description:"Computes the intersection point of lines and/or planes.",examples:["intersect([0, 0], [10, 10], [10, 0], [0, 10])","intersect([1, 0, 1], [4, -2, 2], [1, 1, 1, 6])"],seealso:[]}},function(e,t){e.exports={name:"and",category:"Logical",syntax:["x and y","and(x, y)"],description:"Logical and. Test whether two values are both defined with a nonzero/nonempty value.",examples:["true and false","true and true","2 and 4"],seealso:["not","or","xor"]}},function(e,t){e.exports={name:"not",category:"Logical",syntax:["not x","not(x)"],description:"Logical not. Flips the boolean value of given argument.",examples:["not true","not false","not 2","not 0"],seealso:["and","or","xor"]}},function(e,t){e.exports={name:"or",category:"Logical",syntax:["x or y","or(x, y)"],description:"Logical or. Test if at least one value is defined with a nonzero/nonempty value.",examples:["true or false","false or false","0 or 4"],seealso:["not","and","xor"]}},function(e,t){e.exports={name:"xor",category:"Logical",syntax:["x xor y","xor(x, y)"],description:"Logical exclusive or, xor. Test whether one and only one value is defined with a nonzero/nonempty value.",examples:["true xor false","false xor false","true xor true","0 xor 4"],seealso:["not","and","or"]}},function(e,t){e.exports={name:"concat",category:"Matrix",syntax:["concat(A, B, C, ...)","concat(A, B, C, ..., dim)"],description:"Concatenate matrices. By default, the matrices are concatenated by the last dimension. The dimension on which to concatenate can be provided as last argument.",examples:["A = [1, 2; 5, 6]","B = [3, 4; 7, 8]","concat(A, B)","concat(A, B, 1)","concat(A, B, 2)"],seealso:["det","diag","identity","inv","ones","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"cross",category:"Matrix",syntax:["cross(A, B)"],description:"Calculate the cross product for two vectors in three dimensional space.",examples:["cross([1, 1, 0], [0, 1, 1])","cross([3, -3, 1], [4, 9, 2])","cross([2, 3, 4], [5, 6, 7])"],seealso:["multiply","dot"]}},function(e,t){e.exports={name:"transpose",category:"Matrix",syntax:["x'","ctranspose(x)"],description:"Complex Conjugate and Transpose a matrix",examples:["a = [1, 2, 3; 4, 5, 6]","a'","ctranspose(a)"],seealso:["concat","det","diag","identity","inv","ones","range","size","squeeze","subset","trace","zeros"]}},function(e,t){e.exports={name:"det",category:"Matrix",syntax:["det(x)"],description:"Calculate the determinant of a matrix",examples:["det([1, 2; 3, 4])","det([-2, 2, 3; -1, 1, 3; 2, 0, -1])"],seealso:["concat","diag","identity","inv","ones","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"diag",category:"Matrix",syntax:["diag(x)","diag(x, k)"],description:"Create a diagonal matrix or retrieve the diagonal of a matrix. When x is a vector, a matrix with the vector values on the diagonal will be returned. When x is a matrix, a vector with the diagonal values of the matrix is returned. When k is provided, the k-th diagonal will be filled in or retrieved, if k is positive, the values are placed on the super diagonal. When k is negative, the values are placed on the sub diagonal.",examples:["diag(1:3)","diag(1:3, 1)","a = [1, 2, 3; 4, 5, 6; 7, 8, 9]","diag(a)"],seealso:["concat","det","identity","inv","ones","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"dot",category:"Matrix",syntax:["dot(A, B)","A * B"],description:"Calculate the dot product of two vectors. The dot product of A = [a1, a2, a3, ..., an] and B = [b1, b2, b3, ..., bn] is defined as dot(A, B) = a1 * b1 + a2 * b2 + a3 * b3 + ... + an * bn",examples:["dot([2, 4, 1], [2, 2, 3])","[2, 4, 1] * [2, 2, 3]"],seealso:["multiply","cross"]}},function(e,t){e.exports={name:"getMatrixDataType",category:"Matrix",syntax:["getMatrixDataType(x)"],description:'Find the data type of all elements in a matrix or array, for example "number" if all items are a number and "Complex" if all values are complex numbers. If a matrix contains more than one data type, it will return "mixed".',examples:["getMatrixDataType([1, 2, 3])","getMatrixDataType([[5 cm], [2 inch]])",'getMatrixDataType([1, "text"])',"getMatrixDataType([1, bignumber(4)])"],seealso:["matrix","sparse","typeof"]}},function(e,t){e.exports={name:"identity",category:"Matrix",syntax:["identity(n)","identity(m, n)","identity([m, n])"],description:"Returns the identity matrix with size m-by-n. The matrix has ones on the diagonal and zeros elsewhere.",examples:["identity(3)","identity(3, 5)","a = [1, 2, 3; 4, 5, 6]","identity(size(a))"],seealso:["concat","det","diag","inv","ones","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"filter",category:"Matrix",syntax:["filter(x, test)"],description:"Filter items in a matrix.",examples:["isPositive(x) = x > 0","filter([6, -2, -1, 4, 3], isPositive)","filter([6, -2, 0, 1, 0], x != 0)"],seealso:["sort","map","forEach"]}},function(e,t){e.exports={name:"flatten",category:"Matrix",syntax:["flatten(x)"],description:"Flatten a multi dimensional matrix into a single dimensional matrix.",examples:["a = [1, 2, 3; 4, 5, 6]","size(a)","b = flatten(a)","size(b)"],seealso:["concat","resize","size","squeeze"]}},function(e,t){e.exports={name:"forEach",category:"Matrix",syntax:["forEach(x, callback)"],description:"Iterates over all elements of a matrix/array, and executes the given callback function.",examples:["forEach([1, 2, 3], function(val) { console.log(val) })"],seealso:["map","sort","filter"]}},function(e,t){e.exports={name:"inv",category:"Matrix",syntax:["inv(x)"],description:"Calculate the inverse of a matrix",examples:["inv([1, 2; 3, 4])","inv(4)","1 / 4"],seealso:["concat","det","diag","identity","ones","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"kron",category:"Matrix",syntax:["kron(x, y)"],description:"Calculates the kronecker product of 2 matrices or vectors.",examples:["kron([[1, 0], [0, 1]], [[1, 2], [3, 4]])","kron([1,1], [2,3,4])"],seealso:["multiply","dot","cross"]}},function(e,t){e.exports={name:"map",category:"Matrix",syntax:["map(x, callback)"],description:"Create a new matrix or array with the results of the callback function executed on each entry of the matrix/array.",examples:["map([1, 2, 3], square)"],seealso:["filter","forEach"]}},function(e,t){e.exports={name:"ones",category:"Matrix",syntax:["ones(m)","ones(m, n)","ones(m, n, p, ...)","ones([m])","ones([m, n])","ones([m, n, p, ...])"],description:"Create a matrix containing ones.",examples:["ones(3)","ones(3, 5)","ones([2,3]) * 4.5","a = [1, 2, 3; 4, 5, 6]","ones(size(a))"],seealso:["concat","det","diag","identity","inv","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"partitionSelect",category:"Matrix",syntax:["partitionSelect(x, k)","partitionSelect(x, k, compare)"],description:"Partition-based selection of an array or 1D matrix. Will find the kth smallest value, and mutates the input array. Uses Quickselect.",examples:["partitionSelect([5, 10, 1], 2)",'partitionSelect(["C", "B", "A", "D"], 1)'],seealso:["sort"]}},function(e,t){e.exports={name:"range",category:"Type",syntax:["start:end","start:step:end","range(start, end)","range(start, end, step)","range(string)"],description:"Create a range. Lower bound of the range is included, upper bound is excluded.",examples:["1:5","3:-1:-3","range(3, 7)","range(0, 12, 2)",'range("4:10")',"a = [1, 2, 3, 4; 5, 6, 7, 8]","a[1:2, 1:2]"],seealso:["concat","det","diag","identity","inv","ones","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"resize",category:"Matrix",syntax:["resize(x, size)","resize(x, size, defaultValue)"],description:"Resize a matrix.",examples:["resize([1,2,3,4,5], [3])","resize([1,2,3], [5])","resize([1,2,3], [5], -1)","resize(2, [2, 3])",'resize("hello", [8], "!")'],seealso:["size","subset","squeeze","reshape"]}},function(e,t){e.exports={name:"reshape",category:"Matrix",syntax:["reshape(x, sizes)"],description:"Reshape a multi dimensional array to fit the specified dimensions.",examples:["reshape([1, 2, 3, 4, 5, 6], [2, 3])","reshape([[1, 2], [3, 4]], [1, 4])","reshape([[1, 2], [3, 4]], [4])"],seealso:["size","squeeze","resize"]}},function(e,t){e.exports={name:"size",category:"Matrix",syntax:["size(x)"],description:"Calculate the size of a matrix.",examples:["size(2.3)",'size("hello world")',"a = [1, 2; 3, 4; 5, 6]","size(a)","size(1:6)"],seealso:["concat","det","diag","identity","inv","ones","range","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"sort",category:"Matrix",syntax:["sort(x)","sort(x, compare)"],description:'Sort the items in a matrix. Compare can be a string "asc", "desc", "natural", or a custom sort function.',examples:["sort([5, 10, 1])",'sort(["C", "B", "A", "D"])',"sortByLength(a, b) = size(a)[1] - size(b)[1]",'sort(["Langdon", "Tom", "Sara"], sortByLength)','sort(["10", "1", "2"], "natural")'],seealso:["map","filter","forEach"]}},function(e,t){e.exports={name:"squeeze",category:"Matrix",syntax:["squeeze(x)"],description:"Remove inner and outer singleton dimensions from a matrix.",examples:["a = zeros(3,2,1)","size(squeeze(a))","b = zeros(1,1,3)","size(squeeze(b))"],seealso:["concat","det","diag","identity","inv","ones","range","size","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"subset",category:"Matrix",syntax:["value(index)","value(index) = replacement","subset(value, [index])","subset(value, [index], replacement)"],description:"Get or set a subset of a matrix or string. Indexes are one-based. Both the ranges lower-bound and upper-bound are included.",examples:["d = [1, 2; 3, 4]","e = []","e[1, 1:2] = [5, 6]","e[2, :] = [7, 8]","f = d * e","f[2, 1]","f[:, 1]"],seealso:["concat","det","diag","identity","inv","ones","range","size","squeeze","trace","transpose","zeros"]}},function(e,t){e.exports={name:"trace",category:"Matrix",syntax:["trace(A)"],description:"Calculate the trace of a matrix: the sum of the elements on the main diagonal of a square matrix.",examples:["A = [1, 2, 3; -1, 2, 3; 2, 0, 3]","trace(A)"],seealso:["concat","det","diag","identity","inv","ones","range","size","squeeze","subset","transpose","zeros"]}},function(e,t){e.exports={name:"transpose",category:"Matrix",syntax:["x'","transpose(x)"],description:"Transpose a matrix",examples:["a = [1, 2, 3; 4, 5, 6]","a'","transpose(a)"],seealso:["concat","det","diag","identity","inv","ones","range","size","squeeze","subset","trace","zeros"]}},function(e,t){e.exports={name:"zeros",category:"Matrix",syntax:["zeros(m)","zeros(m, n)","zeros(m, n, p, ...)","zeros([m])","zeros([m, n])","zeros([m, n, p, ...])"],description:"Create a matrix containing zeros.",examples:["zeros(3)","zeros(3, 5)","a = [1, 2, 3; 4, 5, 6]","zeros(size(a))"],seealso:["concat","det","diag","identity","inv","ones","range","size","squeeze","subset","trace","transpose"]}},function(e,t){e.exports={name:"combinations",category:"Probability",syntax:["combinations(n, k)"],description:"Compute the number of combinations of n items taken k at a time",examples:["combinations(7, 5)"],seealso:["permutations","factorial"]}},function(e,t){e.exports={name:"factorial",category:"Probability",syntax:["n!","factorial(n)"],description:"Compute the factorial of a value",examples:["5!","5 * 4 * 3 * 2 * 1","3!"],seealso:["combinations","permutations","gamma"]}},function(e,t){e.exports={name:"gamma",category:"Probability",syntax:["gamma(n)"],description:"Compute the gamma function. For small values, the Lanczos approximation is used, and for large values the extended Stirling approximation.",examples:["gamma(4)","3!","gamma(1/2)","sqrt(pi)"],seealso:["factorial"]}},function(e,t){e.exports={name:"kldivergence",category:"Probability",syntax:["kldivergence(x, y)"],description:"Calculate the Kullback-Leibler (KL) divergence between two distributions.",examples:["kldivergence([0.7,0.5,0.4], [0.2,0.9,0.5])"],seealso:[]}},function(e,t){e.exports={name:"multinomial",category:"Probability",syntax:["multinomial(A)"],description:"Multinomial Coefficients compute the number of ways of picking a1, a2, ..., ai unordered outcomes from `n` possibilities. multinomial takes one array of integers as an argument. The following condition must be enforced: every ai > 0.",examples:["multinomial([1, 2, 1])"],seealso:["combinations","factorial"]}},function(e,t){e.exports={name:"permutations",category:"Probability",syntax:["permutations(n)","permutations(n, k)"],description:"Compute the number of permutations of n items taken k at a time",examples:["permutations(5)","permutations(5, 3)"],seealso:["combinations","factorial"]}},function(e,t){e.exports={name:"pickRandom",category:"Probability",syntax:["pickRandom(array)","pickRandom(array, number)","pickRandom(array, weights)","pickRandom(array, number, weights)","pickRandom(array, weights, number)"],description:"Pick a random entry from a given array.",examples:["pickRandom(0:10)","pickRandom([1, 3, 1, 6])","pickRandom([1, 3, 1, 6], 2)","pickRandom([1, 3, 1, 6], [2, 3, 2, 1])","pickRandom([1, 3, 1, 6], 2, [2, 3, 2, 1])","pickRandom([1, 3, 1, 6], [2, 3, 2, 1], 2)"],seealso:["random","randomInt"]}},function(e,t){e.exports={name:"random",category:"Probability",syntax:["random()","random(max)","random(min, max)","random(size)","random(size, max)","random(size, min, max)"],description:"Return a random number.",examples:["random()","random(10, 20)","random([2, 3])"],seealso:["pickRandom","randomInt"]}},function(e,t){e.exports={name:"randomInt",category:"Probability",syntax:["randomInt(max)","randomInt(min, max)","randomInt(size)","randomInt(size, max)","randomInt(size, min, max)"],description:"Return a random integer number",examples:["randomInt(10, 20)","randomInt([2, 3], 10)"],seealso:["pickRandom","random"]}},function(e,t){e.exports={name:"compare",category:"Relational",syntax:["compare(x, y)"],description:"Compare two values. Returns 1 when x > y, -1 when x < y, and 0 when x == y.",examples:["compare(2, 3)","compare(3, 2)","compare(2, 2)","compare(5cm, 40mm)","compare(2, [1, 2, 3])"],seealso:["equal","unequal","smaller","smallerEq","largerEq","compareNatural","compareText"]}},function(e,t){e.exports={name:"compareNatural",category:"Relational",syntax:["compareNatural(x, y)"],description:"Compare two values of any type in a deterministic, natural way. Returns 1 when x > y, -1 when x < y, and 0 when x == y.",examples:["compareNatural(2, 3)","compareNatural(3, 2)","compareNatural(2, 2)","compareNatural(5cm, 40mm)",'compareNatural("2", "10")',"compareNatural(2 + 3i, 2 + 4i)","compareNatural([1, 2, 4], [1, 2, 3])","compareNatural([1, 5], [1, 2, 3])","compareNatural([1, 2], [1, 2])","compareNatural({a: 2}, {a: 4})"],seealso:["equal","unequal","smaller","smallerEq","largerEq","compare","compareText"]}},function(e,t){e.exports={name:"compareText",category:"Relational",syntax:["compareText(x, y)"],description:"Compare two strings lexically. Comparison is case sensitive. Returns 1 when x > y, -1 when x < y, and 0 when x == y.",examples:['compareText("B", "A")','compareText("A", "B")','compareText("A", "A")','compareText("2", "10")','compare("2", "10")',"compare(2, 10)",'compareNatural("2", "10")','compareText("B", ["A", "B", "C"])'],seealso:["compare","compareNatural"]}},function(e,t){e.exports={name:"deepEqual",category:"Relational",syntax:["deepEqual(x, y)"],description:"Check equality of two matrices element wise. Returns true if the size of both matrices is equal and when and each of the elements are equal.",examples:["deepEqual([1,3,4], [1,3,4])","deepEqual([1,3,4], [1,3])"],seealso:["equal","unequal","smaller","larger","smallerEq","largerEq","compare"]}},function(e,t){e.exports={name:"equal",category:"Relational",syntax:["x == y","equal(x, y)"],description:"Check equality of two values. Returns true if the values are equal, and false if not.",examples:["2+2 == 3","2+2 == 4","a = 3.2","b = 6-2.8","a == b","50cm == 0.5m"],seealso:["unequal","smaller","larger","smallerEq","largerEq","compare","deepEqual","equalText"]}},function(e,t){e.exports={name:"equalText",category:"Relational",syntax:["equalText(x, y)"],description:"Check equality of two strings. Comparison is case sensitive. Returns true if the values are equal, and false if not.",examples:['equalText("Hello", "Hello")','equalText("a", "A")','equal("2e3", "2000")','equalText("2e3", "2000")','equalText("B", ["A", "B", "C"])'],seealso:["compare","compareNatural","compareText","equal"]}},function(e,t){e.exports={name:"larger",category:"Relational",syntax:["x > y","larger(x, y)"],description:"Check if value x is larger than y. Returns true if x is larger than y, and false if not.",examples:["2 > 3","5 > 2*2","a = 3.3","b = 6-2.8","(a > b)","(b < a)","5 cm > 2 inch"],seealso:["equal","unequal","smaller","smallerEq","largerEq","compare"]}},function(e,t){e.exports={name:"largerEq",category:"Relational",syntax:["x >= y","largerEq(x, y)"],description:"Check if value x is larger or equal to y. Returns true if x is larger or equal to y, and false if not.",examples:["2 >= 1+1","2 > 1+1","a = 3.2","b = 6-2.8","(a >= b)"],seealso:["equal","unequal","smallerEq","smaller","compare"]}},function(e,t){e.exports={name:"smaller",category:"Relational",syntax:["x < y","smaller(x, y)"],description:"Check if value x is smaller than value y. Returns true if x is smaller than y, and false if not.",examples:["2 < 3","5 < 2*2","a = 3.3","b = 6-2.8","(a < b)","5 cm < 2 inch"],seealso:["equal","unequal","larger","smallerEq","largerEq","compare"]}},function(e,t){e.exports={name:"smallerEq",category:"Relational",syntax:["x <= y","smallerEq(x, y)"],description:"Check if value x is smaller or equal to value y. Returns true if x is smaller than y, and false if not.",examples:["2 <= 1+1","2 < 1+1","a = 3.2","b = 6-2.8","(a <= b)"],seealso:["equal","unequal","larger","smaller","largerEq","compare"]}},function(e,t){e.exports={name:"unequal",category:"Relational",syntax:["x != y","unequal(x, y)"],description:"Check unequality of two values. Returns true if the values are unequal, and false if they are equal.",examples:["2+2 != 3","2+2 != 4","a = 3.2","b = 6-2.8","a != b","50cm != 0.5m","5 cm != 2 inch"],seealso:["equal","smaller","larger","smallerEq","largerEq","compare","deepEqual"]}},function(e,t){e.exports={name:"setCartesian",category:"Set",syntax:["setCartesian(set1, set2)"],description:"Create the cartesian product of two (multi)sets. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setCartesian([1, 2], [3, 4])"],seealso:["setUnion","setIntersect","setDifference","setPowerset"]}},function(e,t){e.exports={name:"setDifference",category:"Set",syntax:["setDifference(set1, set2)"],description:"Create the difference of two (multi)sets: every element of set1, that is not the element of set2. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setDifference([1, 2, 3, 4], [3, 4, 5, 6])","setDifference([[1, 2], [3, 4]], [[3, 4], [5, 6]])"],seealso:["setUnion","setIntersect","setSymDifference"]}},function(e,t){e.exports={name:"setDistinct",category:"Set",syntax:["setDistinct(set)"],description:"Collect the distinct elements of a multiset. A multi-dimension array will be converted to a single-dimension array before the operation.",examples:["setDistinct([1, 1, 1, 2, 2, 3])"],seealso:["setMultiplicity"]}},function(e,t){e.exports={name:"setIntersect",category:"Set",syntax:["setIntersect(set1, set2)"],description:"Create the intersection of two (multi)sets. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setIntersect([1, 2, 3, 4], [3, 4, 5, 6])","setIntersect([[1, 2], [3, 4]], [[3, 4], [5, 6]])"],seealso:["setUnion","setDifference"]}},function(e,t){e.exports={name:"setIsSubset",category:"Set",syntax:["setIsSubset(set1, set2)"],description:"Check whether a (multi)set is a subset of another (multi)set: every element of set1 is the element of set2. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setIsSubset([1, 2], [3, 4, 5, 6])","setIsSubset([3, 4], [3, 4, 5, 6])"],seealso:["setUnion","setIntersect","setDifference"]}},function(e,t){e.exports={name:"setMultiplicity",category:"Set",syntax:["setMultiplicity(element, set)"],description:"Count the multiplicity of an element in a multiset. A multi-dimension array will be converted to a single-dimension array before the operation.",examples:["setMultiplicity(1, [1, 2, 2, 4])","setMultiplicity(2, [1, 2, 2, 4])"],seealso:["setDistinct","setSize"]}},function(e,t){e.exports={name:"setPowerset",category:"Set",syntax:["setPowerset(set)"],description:"Create the powerset of a (multi)set: the powerset contains very possible subsets of a (multi)set. A multi-dimension array will be converted to a single-dimension array before the operation.",examples:["setPowerset([1, 2, 3])"],seealso:["setCartesian"]}},function(e,t){e.exports={name:"setSize",category:"Set",syntax:["setSize(set)","setSize(set, unique)"],description:'Count the number of elements of a (multi)set. When the second parameter "unique" is true, count only the unique values. A multi-dimension array will be converted to a single-dimension array before the operation.',examples:["setSize([1, 2, 2, 4])","setSize([1, 2, 2, 4], true)"],seealso:["setUnion","setIntersect","setDifference"]}},function(e,t){e.exports={name:"setSymDifference",category:"Set",syntax:["setSymDifference(set1, set2)"],description:"Create the symmetric difference of two (multi)sets. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setSymDifference([1, 2, 3, 4], [3, 4, 5, 6])","setSymDifference([[1, 2], [3, 4]], [[3, 4], [5, 6]])"],seealso:["setUnion","setIntersect","setDifference"]}},function(e,t){e.exports={name:"setUnion",category:"Set",syntax:["setUnion(set1, set2)"],description:"Create the union of two (multi)sets. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setUnion([1, 2, 3, 4], [3, 4, 5, 6])","setUnion([[1, 2], [3, 4]], [[3, 4], [5, 6]])"],seealso:["setIntersect","setDifference"]}},function(e,t){e.exports={name:"erf",category:"Special",syntax:["erf(x)"],description:"Compute the erf function of a value using a rational Chebyshev approximations for different intervals of x",examples:["erf(0.2)","erf(-0.5)","erf(4)"],seealso:[]}},function(e,t){e.exports={name:"mad",category:"Statistics",syntax:["mad(a, b, c, ...)","mad(A)"],description:"Compute the median absolute deviation of a matrix or a list with values. The median absolute deviation is defined as the median of the absolute deviations from the median.",examples:["mad(10, 20, 30)","mad([1, 2, 3])"],seealso:["mean","median","std","abs"]}},function(e,t){e.exports={name:"max",category:"Statistics",syntax:["max(a, b, c, ...)","max(A)","max(A, dim)"],description:"Compute the maximum value of a list of values.",examples:["max(2, 3, 4, 1)","max([2, 3, 4, 1])","max([2, 5; 4, 3])","max([2, 5; 4, 3], 1)","max([2, 5; 4, 3], 2)","max(2.7, 7.1, -4.5, 2.0, 4.1)","min(2.7, 7.1, -4.5, 2.0, 4.1)"],seealso:["mean","median","min","prod","std","sum","var"]}},function(e,t){e.exports={name:"mean",category:"Statistics",syntax:["mean(a, b, c, ...)","mean(A)","mean(A, dim)"],description:"Compute the arithmetic mean of a list of values.",examples:["mean(2, 3, 4, 1)","mean([2, 3, 4, 1])","mean([2, 5; 4, 3])","mean([2, 5; 4, 3], 1)","mean([2, 5; 4, 3], 2)","mean([1.0, 2.7, 3.2, 4.0])"],seealso:["max","median","min","prod","std","sum","var"]}},function(e,t){e.exports={name:"median",category:"Statistics",syntax:["median(a, b, c, ...)","median(A)"],description:"Compute the median of all values. The values are sorted and the middle value is returned. In case of an even number of values, the average of the two middle values is returned.",examples:["median(5, 2, 7)","median([3, -1, 5, 7])"],seealso:["max","mean","min","prod","std","sum","var","quantileSeq"]}},function(e,t){e.exports={name:"min",category:"Statistics",syntax:["min(a, b, c, ...)","min(A)","min(A, dim)"],description:"Compute the minimum value of a list of values.",examples:["min(2, 3, 4, 1)","min([2, 3, 4, 1])","min([2, 5; 4, 3])","min([2, 5; 4, 3], 1)","min([2, 5; 4, 3], 2)","min(2.7, 7.1, -4.5, 2.0, 4.1)","max(2.7, 7.1, -4.5, 2.0, 4.1)"],seealso:["max","mean","median","prod","std","sum","var"]}},function(e,t){e.exports={name:"mode",category:"Statistics",syntax:["mode(a, b, c, ...)","mode(A)","mode(A, a, b, B, c, ...)"],description:"Computes the mode of all values as an array. In case mode being more than one, multiple values are returned in an array.",examples:["mode(2, 1, 4, 3, 1)","mode([1, 2.7, 3.2, 4, 2.7])","mode(1, 4, 6, 1, 6)"],seealso:["max","mean","min","median","prod","std","sum","var"]}},function(e,t){e.exports={name:"prod",category:"Statistics",syntax:["prod(a, b, c, ...)","prod(A)"],description:"Compute the product of all values.",examples:["prod(2, 3, 4)","prod([2, 3, 4])","prod([2, 5; 4, 3])"],seealso:["max","mean","min","median","min","std","sum","var"]}},function(e,t){e.exports={name:"quantileSeq",category:"Statistics",syntax:["quantileSeq(A, prob[, sorted])","quantileSeq(A, [prob1, prob2, ...][, sorted])","quantileSeq(A, N[, sorted])"],description:"Compute the prob order quantile of a matrix or a list with values. The sequence is sorted and the middle value is returned. Supported types of sequence values are: Number, BigNumber, Unit Supported types of probablity are: Number, BigNumber. \n\nIn case of a (multi dimensional) array or matrix, the prob order quantile of all elements will be calculated.",examples:["quantileSeq([3, -1, 5, 7], 0.5)","quantileSeq([3, -1, 5, 7], [1/3, 2/3])","quantileSeq([3, -1, 5, 7], 2)","quantileSeq([-1, 3, 5, 7], 0.5, true)"],seealso:["mean","median","min","max","prod","std","sum","var"]}},function(e,t){e.exports={name:"std",category:"Statistics",syntax:["std(a, b, c, ...)","std(A)","std(A, normalization)"],description:'Compute the standard deviation of all values, defined as std(A) = sqrt(var(A)). Optional parameter normalization can be "unbiased" (default), "uncorrected", or "biased".',examples:["std(2, 4, 6)","std([2, 4, 6, 8])",'std([2, 4, 6, 8], "uncorrected")','std([2, 4, 6, 8], "biased")',"std([1, 2, 3; 4, 5, 6])"],seealso:["max","mean","min","median","min","prod","sum","var"]}},function(e,t){e.exports={name:"sum",category:"Statistics",syntax:["sum(a, b, c, ...)","sum(A)"],description:"Compute the sum of all values.",examples:["sum(2, 3, 4, 1)","sum([2, 3, 4, 1])","sum([2, 5; 4, 3])"],seealso:["max","mean","median","min","prod","std","sum","var"]}},function(e,t){e.exports={name:"var",category:"Statistics",syntax:["var(a, b, c, ...)","var(A)","var(A, normalization)"],description:'Compute the variance of all values. Optional parameter normalization can be "unbiased" (default), "uncorrected", or "biased".',examples:["var(2, 4, 6)","var([2, 4, 6, 8])",'var([2, 4, 6, 8], "uncorrected")','var([2, 4, 6, 8], "biased")',"var([1, 2, 3; 4, 5, 6])"],seealso:["max","mean","min","median","min","prod","std","sum"]}},function(e,t){e.exports={name:"acos",category:"Trigonometry",syntax:["acos(x)"],description:"Compute the inverse cosine of a value in radians.",examples:["acos(0.5)","acos(cos(2.3))"],seealso:["cos","atan","asin"]}},function(e,t){e.exports={name:"acosh",category:"Trigonometry",syntax:["acosh(x)"],description:"Calculate the hyperbolic arccos of a value, defined as `acosh(x) = ln(sqrt(x^2 - 1) + x)`.",examples:["acosh(1.5)"],seealso:["cosh","asinh","atanh"]}},function(e,t){e.exports={name:"acot",category:"Trigonometry",syntax:["acot(x)"],description:"Calculate the inverse cotangent of a value.",examples:["acot(0.5)","acot(cot(0.5))","acot(2)"],seealso:["cot","atan"]}},function(e,t){e.exports={name:"acoth",category:"Trigonometry",syntax:["acoth(x)"],description:"Calculate the hyperbolic arccotangent of a value, defined as `acoth(x) = (ln((x+1)/x) + ln(x/(x-1))) / 2`.",examples:["acoth(2)","acoth(0.5)"],seealso:["acsch","asech"]}},function(e,t){e.exports={name:"acsc",category:"Trigonometry",syntax:["acsc(x)"],description:"Calculate the inverse cotangent of a value.",examples:["acsc(2)","acsc(csc(0.5))","acsc(0.5)"],seealso:["csc","asin","asec"]}},function(e,t){e.exports={name:"acsch",category:"Trigonometry",syntax:["acsch(x)"],description:"Calculate the hyperbolic arccosecant of a value, defined as `acsch(x) = ln(1/x + sqrt(1/x^2 + 1))`.",examples:["acsch(0.5)"],seealso:["asech","acoth"]}},function(e,t){e.exports={name:"asec",category:"Trigonometry",syntax:["asec(x)"],description:"Calculate the inverse secant of a value.",examples:["asec(0.5)","asec(sec(0.5))","asec(2)"],seealso:["acos","acot","acsc"]}},function(e,t){e.exports={name:"asech",category:"Trigonometry",syntax:["asech(x)"],description:"Calculate the inverse secant of a value.",examples:["asech(0.5)"],seealso:["acsch","acoth"]}},function(e,t){e.exports={name:"asin",category:"Trigonometry",syntax:["asin(x)"],description:"Compute the inverse sine of a value in radians.",examples:["asin(0.5)","asin(sin(0.5))"],seealso:["sin","acos","atan"]}},function(e,t){e.exports={name:"asinh",category:"Trigonometry",syntax:["asinh(x)"],description:"Calculate the hyperbolic arcsine of a value, defined as `asinh(x) = ln(x + sqrt(x^2 + 1))`.",examples:["asinh(0.5)"],seealso:["acosh","atanh"]}},function(e,t){e.exports={name:"atan",category:"Trigonometry",syntax:["atan(x)"],description:"Compute the inverse tangent of a value in radians.",examples:["atan(0.5)","atan(tan(0.5))"],seealso:["tan","acos","asin"]}},function(e,t){e.exports={name:"atanh",category:"Trigonometry",syntax:["atanh(x)"],description:"Calculate the hyperbolic arctangent of a value, defined as `atanh(x) = ln((1 + x)/(1 - x)) / 2`.",examples:["atanh(0.5)"],seealso:["acosh","asinh"]}},function(e,t){e.exports={name:"atan2",category:"Trigonometry",syntax:["atan2(y, x)"],description:"Computes the principal value of the arc tangent of y/x in radians.",examples:["atan2(2, 2) / pi","angle = 60 deg in rad","x = cos(angle)","y = sin(angle)","atan2(y, x)"],seealso:["sin","cos","tan"]}},function(e,t){e.exports={name:"cos",category:"Trigonometry",syntax:["cos(x)"],description:"Compute the cosine of x in radians.",examples:["cos(2)","cos(pi / 4) ^ 2","cos(180 deg)","cos(60 deg)","sin(0.2)^2 + cos(0.2)^2"],seealso:["acos","sin","tan"]}},function(e,t){e.exports={name:"cosh",category:"Trigonometry",syntax:["cosh(x)"],description:"Compute the hyperbolic cosine of x in radians.",examples:["cosh(0.5)"],seealso:["sinh","tanh","coth"]}},function(e,t){e.exports={name:"cot",category:"Trigonometry",syntax:["cot(x)"],description:"Compute the cotangent of x in radians. Defined as 1/tan(x)",examples:["cot(2)","1 / tan(2)"],seealso:["sec","csc","tan"]}},function(e,t){e.exports={name:"coth",category:"Trigonometry",syntax:["coth(x)"],description:"Compute the hyperbolic cotangent of x in radians.",examples:["coth(2)","1 / tanh(2)"],seealso:["sech","csch","tanh"]}},function(e,t){e.exports={name:"csc",category:"Trigonometry",syntax:["csc(x)"],description:"Compute the cosecant of x in radians. Defined as 1/sin(x)",examples:["csc(2)","1 / sin(2)"],seealso:["sec","cot","sin"]}},function(e,t){e.exports={name:"csch",category:"Trigonometry",syntax:["csch(x)"],description:"Compute the hyperbolic cosecant of x in radians. Defined as 1/sinh(x)",examples:["csch(2)","1 / sinh(2)"],seealso:["sech","coth","sinh"]}},function(e,t){e.exports={name:"sec",category:"Trigonometry",syntax:["sec(x)"],description:"Compute the secant of x in radians. Defined as 1/cos(x)",examples:["sec(2)","1 / cos(2)"],seealso:["cot","csc","cos"]}},function(e,t){e.exports={name:"sech",category:"Trigonometry",syntax:["sech(x)"],description:"Compute the hyperbolic secant of x in radians. Defined as 1/cosh(x)",examples:["sech(2)","1 / cosh(2)"],seealso:["coth","csch","cosh"]}},function(e,t){e.exports={name:"sin",category:"Trigonometry",syntax:["sin(x)"],description:"Compute the sine of x in radians.",examples:["sin(2)","sin(pi / 4) ^ 2","sin(90 deg)","sin(30 deg)","sin(0.2)^2 + cos(0.2)^2"],seealso:["asin","cos","tan"]}},function(e,t){e.exports={name:"sinh",category:"Trigonometry",syntax:["sinh(x)"],description:"Compute the hyperbolic sine of x in radians.",examples:["sinh(0.5)"],seealso:["cosh","tanh"]}},function(e,t){e.exports={name:"tan",category:"Trigonometry",syntax:["tan(x)"],description:"Compute the tangent of x in radians.",examples:["tan(0.5)","sin(0.5) / cos(0.5)","tan(pi / 4)","tan(45 deg)"],seealso:["atan","sin","cos"]}},function(e,t){e.exports={name:"tanh",category:"Trigonometry",syntax:["tanh(x)"],description:"Compute the hyperbolic tangent of x in radians.",examples:["tanh(0.5)","sinh(0.5) / cosh(0.5)"],seealso:["sinh","cosh"]}},function(e,t){e.exports={name:"to",category:"Units",syntax:["x to unit","to(x, unit)"],description:"Change the unit of a value.",examples:["5 inch to cm","3.2kg to g","16 bytes in bits"],seealso:[]}},function(e,t){e.exports={name:"clone",category:"Utils",syntax:["clone(x)"],description:"Clone a variable. Creates a copy of primitive variables,and a deep copy of matrices",examples:["clone(3.5)","clone(2 - 4i)","clone(45 deg)","clone([1, 2; 3, 4])",'clone("hello world")'],seealso:[]}},function(e,t){e.exports={name:"format",category:"Utils",syntax:["format(value)","format(value, precision)"],description:"Format a value of any type as string.",examples:["format(2.3)","format(3 - 4i)","format([])","format(pi, 3)"],seealso:["print"]}},function(e,t){e.exports={name:"isNaN",category:"Utils",syntax:["isNaN(x)"],description:"Test whether a value is NaN (not a number)",examples:["isNaN(2)","isNaN(0 / 0)","isNaN(NaN)","isNaN(Infinity)"],seealso:["isNegative","isNumeric","isPositive","isZero"]}},function(e,t){e.exports={name:"isInteger",category:"Utils",syntax:["isInteger(x)"],description:"Test whether a value is an integer number.",examples:["isInteger(2)","isInteger(3.5)","isInteger([3, 0.5, -2])"],seealso:["isNegative","isNumeric","isPositive","isZero"]}},function(e,t){e.exports={name:"isNegative",category:"Utils",syntax:["isNegative(x)"],description:"Test whether a value is negative: smaller than zero.",examples:["isNegative(2)","isNegative(0)","isNegative(-4)","isNegative([3, 0.5, -2])"],seealso:["isInteger","isNumeric","isPositive","isZero"]}},function(e,t){e.exports={name:"isNumeric",category:"Utils",syntax:["isNumeric(x)"],description:"Test whether a value is a numeric value. Returns true when the input is a number, BigNumber, Fraction, or boolean.",examples:["isNumeric(2)","isNumeric(0)","isNumeric(bignumber(500))","isNumeric(fraction(0.125))",'isNumeric("3")',"isNumeric(2 + 3i)",'isNumeric([2.3, "foo", false])'],seealso:["isInteger","isZero","isNegative","isPositive","isNaN"]}},function(e,t){e.exports={name:"isPositive",category:"Utils",syntax:["isPositive(x)"],description:"Test whether a value is positive: larger than zero.",examples:["isPositive(2)","isPositive(0)","isPositive(-4)","isPositive([3, 0.5, -2])"],seealso:["isInteger","isNumeric","isNegative","isZero"]}},function(e,t){e.exports={name:"isPrime",category:"Utils",syntax:["isPrime(x)"],description:"Test whether a value is prime: has no divisors other than itself and one.",examples:["isPrime(3)","isPrime(-2)","isPrime([2, 17, 100])"],seealso:["isInteger","isNumeric","isNegative","isZero"]}},function(e,t){e.exports={name:"isZero",category:"Utils",syntax:["isZero(x)"],description:"Test whether a value is zero.",examples:["isZero(2)","isZero(0)","isZero(-4)","isZero([3, 0, -2, 0])"],seealso:["isInteger","isNumeric","isNegative","isPositive"]}},function(e,t){e.exports={name:"typeof",category:"Utils",syntax:["typeof(x)"],description:"Get the type of a variable.",examples:["typeof(3.5)","typeof(2 - 4i)","typeof(45 deg)",'typeof("hello world")'],seealso:["getMatrixDataType"]}},function(e,t,r){"use strict";e.exports=[r(556),r(557),r(558),r(123),r(151)]},function(e,t,o){"use strict";var a=o(0);t.name="compile",t.factory=function(e,t,r,n){var i=r(o(43));return n("compile",{string:function(e){return i(e).compile()},"Array | Matrix":function(e){return a(e,function(e){return i(e).compile()})}})}},function(e,t,o){"use strict";var a=o(0);t.name="eval",t.factory=function(e,t,r,n){var i=r(o(43));return n("compile",{string:function(e){return i(e).compile().eval({})},"string, Object":function(e,t){return i(e).compile().eval(t)},"Array | Matrix":function(e){var t={};return a(e,function(e){return i(e).compile().eval(t)})},"Array | Matrix, Object":function(e,t){return a(e,function(e){return i(e).compile().eval(t)})}})}},function(e,t,n){"use strict";var s=n(13).getSafeProperty;t.math=!0,t.name="help",t.factory=function(i,e,t,r,o){var a=t(n(148));return r("help",{any:function(e){var t,r=e;if("string"!=typeof e)for(t in o)if(o.hasOwnProperty(t)&&e===o[t]){r=t;break}var n=s(a,r);if(!n)throw new Error('No documentation found on "'+r+'"');return new i.Help(n)}})}},function(e,t,r){"use strict";e.exports=[r(107),r(110),r(111),r(112),r(113),r(57),r(115),r(114),r(68),r(16),r(116),r(58),r(67),r(117),r(118),r(53),r(560)]},function(e,t,r){"use strict";t.name="UpdateNode",t.path="expression.node",t.factory=function(e,t,r,n){return function(){throw new Error("UpdateNode is deprecated. Use AssignmentNode instead.")}}},function(e,t,r){"use strict";e.exports=[r(562),r(563),r(564),r(565),r(566),r(567),r(568),r(569),r(570),r(571),r(572)]},function(e,t,o){"use strict";var a=o(35).transform;t.name="concat",t.path="expression.transform",t.factory=function(n,e,t,r){var i=t(o(76));return r("concat",{"...any":function(e){var t=e.length-1,r=e[t];n.isNumber(r)?e[t]=r-1:n.isBigNumber(r)&&(e[t]=r.minus(1));try{return i.apply(null,e)}catch(e){throw a(e)}}})}},function(e,t,u){"use strict";var r=u(2).filter,c=u(2).filterRegExp,o=u(31).maxArgumentCount;function f(e,n){var i=o(n);return r(e,function(e,t,r){return 1===i?n(e):2===i?n(e,[t+1]):n(e,[t+1],r)})}t.name="filter",t.path="expression.transform",t.factory=function(o,e,t,r){var a=t(u(97)),n=t(u(1));function i(e,t,r){var n,i;return e[0]&&(n=e[0].compile().eval(r)),e[1]&&(i=o.isSymbolNode(e[1])||o.isFunctionAssignmentNode(e[1])?e[1].compile().eval(r):a(e[1],t,r)),s(n,i)}i.rawArgs=!0;var s=r("filter",{"Array, function":f,"Matrix, function":function(e,t){return n(f(e.toArray(),t))},"Array, RegExp":c,"Matrix, RegExp":function(e,t){return n(c(e.toArray(),t))}});return s.toTex=void 0,i}},function(e,t,i){"use strict";var u=i(31).maxArgumentCount,c=i(2).forEach;t.name="forEach",t.path="expression.transform",t.factory=function(o,e,t,r){var a=t(i(97));function n(e,t,r){var n,i;return e[0]&&(n=e[0].compile().eval(r)),e[1]&&(i=o.isSymbolNode(e[1])||o.isFunctionAssignmentNode(e[1])?e[1].compile().eval(r):a(e[1],t,r)),s(n,i)}n.rawArgs=!0;var s=r("forEach",{"Array | Matrix, function":function(t,i){var o=u(i);!function r(e,n){Array.isArray(e)?c(e,function(e,t){r(e,n.concat(t+1))}):1===o?i(e):2===o?i(e,n):i(e,n,t)}(t.valueOf(),[])}});return n}},function(e,t,r){"use strict";t.name="index",t.path="expression.transform",t.factory=function(o,e,t){return function(){for(var e=[],t=0,r=arguments.length;t>=1)1&t&&(n=n*e%r);return n}(10,r,t),o=0;o<300;o++){if(n===i)return o;n=10*n%t,i=10*i%t}return 0}(0,n,i),a=-1===this.s?"-":"";if(a+=r/n|0,r%=n,(r*=10)&&(a+="."),i){for(var s=o;s--;)a+=r/n|0,r%=n,r*=10;a+="(";for(s=i;s--;)a+=r/n|0,r%=n,r*=10;a+=")"}else for(s=e;r&&s--;)a+=r/n|0,r%=n,r*=10;return a}},void 0===(a=function(){return c}.apply(o,[]))||(i.exports=a)}()},function(e,t,r){"use strict";e.exports=[r(82),r(48),r(179),r(180),r(181),r(182),r(28),r(101),r(183),r(1),r(184),r(63)]},function(e,t,r){"use strict";t.isBoolean=function(e){return"boolean"==typeof e}},function(e,t,a){"use strict";var s=a(30),x=a(8),y=s.array,E=s.object,A=s.string,S=s.number,O=Array.isArray,T=S.isNumber,_=S.isInteger,C=A.isString,z=y.validateIndex;t.name="SparseMatrix",t.path="type",t.factory=function(b,e,t,w){var r=t(a(82)),N=t(a(11)),n=t(a(63));function M(e,t){if(!(this instanceof M))throw new SyntaxError("Constructor must be called with the new operator");if(t&&!C(t))throw new Error("Invalid datatype: "+t);if(b.isMatrix(e))r=this,i=t,"SparseMatrix"===(n=e).type?(r._values=n._values?E.clone(n._values):void 0,r._index=E.clone(n._index),r._ptr=E.clone(n._ptr),r._size=E.clone(n._size),r._datatype=i||n._datatype):o(r,n.valueOf(),i||n._datatype);else if(e&&O(e.index)&&O(e.ptr)&&O(e.size))this._values=e.values,this._index=e.index,this._ptr=e.ptr,this._size=e.size,this._datatype=t||e.datatype;else if(O(e))o(this,e,t);else{if(e)throw new TypeError("Unsupported type of data ("+s.types.type(e)+")");this._values=[],this._index=[],this._ptr=[0],this._size=[0,0],this._datatype=t}var r,n,i}function o(e,t,r){e._values=[],e._index=[],e._ptr=[],e._datatype=r;var n=t.length,i=0,o=N,a=0;if(C(r)&&(o=w.find(N,[r,r])||N,a=w.convert(0,r)),0");for(var c=t.min()[0],f=t.min()[1],l=i[0],p=i[1],m=0;m "+(this._values?A.format(this._values[u],e):"X")}return i},M.prototype.toString=function(){return A.format(this.toArray())},M.prototype.toJSON=function(){return{mathjs:"SparseMatrix",values:this._values,index:this._index,ptr:this._ptr,size:this._size,datatype:this._datatype}},M.prototype.diagonal=function(e){if(e){if(b.isBigNumber(e)&&(e=e.toNumber()),!T(e)||!_(e))throw new TypeError("The parameter k must be an integer number")}else e=0;var t=0=e&&(c(a.value,0)||r(a.key,a.value,this)),(a=n.extractMinimum())&&o.push(a);for(var s=0;si))for(var l=s[c+1];f=U?T[I+m]-=y:0!==T[I+m]&&(T[I+m]=T[k+m]+Z)}for(g=$;g>t},"BigNumber, BigNumber":v,"SparseMatrix, SparseMatrix":function(e,t){return f(e,t,d,!1)},"SparseMatrix, DenseMatrix":function(e,t){return c(t,e,d,!0)},"DenseMatrix, SparseMatrix":function(e,t){return u(e,t,d,!1)},"DenseMatrix, DenseMatrix":function(e,t){return m(e,t,d)},"Array, Array":function(e,t){return d(o(e),o(t)).valueOf()},"Array, Matrix":function(e,t){return d(o(e),t)},"Matrix, Array":function(e,t){return d(e,o(t))},"SparseMatrix, number | BigNumber":function(e,t){return a(t,0)?e.clone():p(e,t,d,!1)},"DenseMatrix, number | BigNumber":function(e,t){return a(t,0)?e.clone():h(e,t,d,!1)},"number | BigNumber, SparseMatrix":function(e,t){return a(e,0)?s(t.size(),t.storage()):l(t,e,d,!0)},"number | BigNumber, DenseMatrix":function(e,t){return a(e,0)?s(t.size(),t.storage()):h(t,e,d,!0)},"Array, number | BigNumber":function(e,t){return d(o(e),t).valueOf()},"number | BigNumber, Array":function(e,t){return d(e,o(t)).valueOf()}});return d.toTex={2:"\\left(${args[0]}".concat(i.operators.rightArithShift,"${args[1]}\\right)")},d}},function(e,t,r){"use strict";e.exports=function(e,t){if(e.isFinite()&&!e.isInteger()||t.isFinite()&&!t.isInteger())throw new Error("Integers expected in function rightArithShift");var r=e.constructor;return e.isNaN()||t.isNaN()||t.isNegative()&&!t.isZero()?new r(NaN):e.isZero()||t.isZero()?e:t.isFinite()?t.lt(55)?e.div(Math.pow(2,t.toNumber())+"").floor():e.div(new r(2).pow(t)).floor():e.isNegative()?new r(-1):e.isFinite()?new r(0):new r(NaN)}},function(e,t,y){"use strict";var g=y(3).isInteger;t.name="rightLogShift",t.factory=function(e,t,r,n){var i=y(4),o=r(y(1)),a=r(y(11)),s=r(y(42)),u=r(y(32)),c=r(y(25)),f=r(y(91)),l=r(y(39)),p=r(y(20)),m=r(y(7)),h=r(y(6)),d=n("rightLogShift",{"number, number":function(e,t){if(!g(e)||!g(t))throw new Error("Integers expected in function rightLogShift");return e>>>t},"SparseMatrix, SparseMatrix":function(e,t){return f(e,t,d,!1)},"SparseMatrix, DenseMatrix":function(e,t){return c(t,e,d,!0)},"DenseMatrix, SparseMatrix":function(e,t){return u(e,t,d,!1)},"DenseMatrix, DenseMatrix":function(e,t){return m(e,t,d)},"Array, Array":function(e,t){return d(o(e),o(t)).valueOf()},"Array, Matrix":function(e,t){return d(o(e),t)},"Matrix, Array":function(e,t){return d(e,o(t))},"SparseMatrix, number | BigNumber":function(e,t){return a(t,0)?e.clone():p(e,t,d,!1)},"DenseMatrix, number | BigNumber":function(e,t){return a(t,0)?e.clone():h(e,t,d,!1)},"number | BigNumber, SparseMatrix":function(e,t){return a(e,0)?s(t.size(),t.storage()):l(t,e,d,!0)},"number | BigNumber, DenseMatrix":function(e,t){return a(e,0)?s(t.size(),t.storage()):h(t,e,d,!0)},"Array, number | BigNumber":function(e,t){return d(o(e),t).valueOf()},"number | BigNumber, Array":function(e,t){return d(e,o(t)).valueOf()}});return d.toTex={2:"\\left(${args[0]}".concat(i.operators.rightLogShift,"${args[1]}\\right)")},d}},function(e,t,r){"use strict";e.exports=[r(254),r(255),r(135),r(256)]},function(e,t,c){"use strict";t.name="bellNumbers",t.factory=function(e,t,r,n){var i=r(c(14)),o=r(c(135)),a=r(c(60)),s=r(c(36)),u=n("bellNumbers",{"number | BigNumber":function(e){if(!s(e)||a(e))throw new TypeError("Non-negative integer value expected in function bellNumbers");for(var t=0,r=0;r<=e;r++)t=i(t,o(e,r));return t}});return u.toTex={1:"\\mathrm{B}_{${args[0]}}"},u}},function(e,t,f){"use strict";t.name="composition",t.factory=function(e,t,r,n){var i=r(f(75)),o=r(f(17)),a=r(f(72)),s=r(f(36)),u=r(f(33)),c=n("composition",{"number | BigNumber, number | BigNumber":function(e,t){if(!(s(e)&&a(e)&&s(t)&&a(t)))throw new TypeError("Positive integer value expected in function composition");if(u(t,e))throw new TypeError("k must be less than or equal to n in function composition");return i(o(e,-1),o(t,-1))}});return c.toTex=void 0,c}},function(e,t,l){"use strict";t.name="catalan",t.factory=function(e,t,r,n){var i=r(l(14)),o=r(l(44)),a=r(l(10)),s=r(l(75)),u=r(l(60)),c=r(l(36)),f=n("catalan",{"number | BigNumber":function(e){if(!c(e)||u(e))throw new TypeError("Non-negative integer value expected in function catalan");return o(s(a(e,2),e),i(e,1))}});return f.toTex={1:"\\mathrm{C}_{${args[0]}}"},f}},function(e,t,r){"use strict";e.exports=[r(258),r(70),r(259),r(260)]},function(e,t,r){"use strict";var o=r(0);t.name="arg",t.factory=function(t,e,r,n){var i=n("arg",{number:function(e){return Math.atan2(0,e)},BigNumber:function(e){return t.BigNumber.atan2(0,e)},Complex:function(e){return e.arg()},"Array | Matrix":function(e){return o(e,i)}});return i.toTex={1:"\\arg\\left(${args[0]}\\right)"},i}},function(e,t,r){"use strict";var o=r(0);t.name="im",t.factory=function(t,e,r,n){var i=n("im",{number:function(e){return 0},BigNumber:function(e){return new t.BigNumber(0)},Complex:function(e){return e.im},"Array | Matrix":function(e){return o(e,i)}});return i.toTex={1:"\\Im\\left\\lbrace${args[0]}\\right\\rbrace"},i}},function(e,t,r){"use strict";var o=r(0);t.name="re",t.factory=function(e,t,r,n){var i=n("re",{number:function(e){return e},BigNumber:function(e){return e},Complex:function(e){return e.re},"Array | Matrix":function(e){return o(e,i)}});return i.toTex={1:"\\Re\\left\\lbrace${args[0]}\\right\\rbrace"},i}},function(e,t,r){"use strict";e.exports=[r(262),r(263)]},function(e,t,n){"use strict";t.name="intersect",t.factory=function(t,_,e,r){var C=e(n(23)),z=e(n(14)),B=e(n(17)),i=e(n(1)),k=e(n(10)),I=e(n(21)),P=e(n(12)),R=e(n(15)),U=e(n(40)),q=e(n(11)),o=r("intersect",{"Array, Array, Array":function(e,t,r){if(!j(e))throw new TypeError("Array with 3 numbers or BigNumbers expected for first argument");if(!j(t))throw new TypeError("Array with 3 numbers or BigNumbers expected for second argument");if(!(4===(n=r).length&&E(n[0])&&E(n[1])&&E(n[2])&&E(n[3])))throw new TypeError("Array with 4 numbers expected as third argument");var n,i,o,a,s,u,c,f,l,p,m,h,d,y,g,v,x,b,w,N,M;return i=e[0],o=e[1],a=e[2],s=t[0],u=t[1],c=t[2],f=r[0],l=r[1],p=r[2],m=r[3],h=I(i,f),d=I(s,f),y=I(o,l),g=I(u,l),v=I(a,p),x=I(c,p),b=P(R(R(R(m,h),y),v),R(R(R(B(B(d,g),x),h),y),v)),w=B(i,I(b,R(s,i))),N=B(o,I(b,R(u,o))),M=B(a,I(b,R(c,a))),[w,N,M]},"Array, Array, Array, Array":function(e,t,r,n){if(2===e.length){if(!D(e))throw new TypeError("Array with 2 numbers or BigNumbers expected for first argument");if(!D(t))throw new TypeError("Array with 2 numbers or BigNumbers expected for second argument");if(!D(r))throw new TypeError("Array with 2 numbers or BigNumbers expected for third argument");if(!D(n))throw new TypeError("Array with 2 numbers or BigNumbers expected for fourth argument");return function(e,t,r,n){var i=e,o=r,a=R(i,t),s=R(o,n),u=R(I(a[0],s[1]),I(s[0],a[1]));if(U(C(u),_.epsilon))return null;var c=I(s[0],i[1]),f=I(s[1],i[0]),l=I(s[0],o[1]),p=I(s[1],o[0]),m=P(B(R(R(c,f),l),p),u);return z(k(a,m),i)}(e,t,r,n)}if(3!==e.length)throw new TypeError("Arrays with two or thee dimensional points expected");if(!j(e))throw new TypeError("Array with 3 numbers or BigNumbers expected for first argument");if(!j(t))throw new TypeError("Array with 3 numbers or BigNumbers expected for second argument");if(!j(r))throw new TypeError("Array with 3 numbers or BigNumbers expected for third argument");if(!j(n))throw new TypeError("Array with 3 numbers or BigNumbers expected for fourth argument");return i=e[0],o=e[1],a=e[2],s=t[0],u=t[1],c=t[2],f=r[0],l=r[1],p=r[2],m=n[0],h=n[1],d=n[2],y=F(i,f,m,f,o,l,h,l,a,p,d,p),g=F(m,f,s,i,h,l,u,o,d,p,c,a),v=F(i,f,s,i,o,l,u,o,a,p,c,a),x=F(m,f,m,f,h,l,h,l,d,p,d,p),b=F(s,i,s,i,u,o,u,o,c,a,c,a),w=P(R(I(y,g),I(v,x)),R(I(b,x),I(g,g))),N=P(B(y,I(w,g)),x),M=B(i,I(w,R(s,i))),E=B(o,I(w,R(u,o))),A=B(a,I(w,R(c,a))),S=B(f,I(N,R(m,f))),O=B(l,I(N,R(h,l))),T=B(p,I(N,R(d,p))),q(M,S)&&q(E,O)&&q(A,T)?[M,E,A]:null;var i,o,a,s,u,c,f,l,p,m,h,d,y,g,v,x,b,w,N,M,E,A,S,O,T},"Matrix, Matrix, Matrix":function(e,t,r){return i(o(e.valueOf(),t.valueOf(),r.valueOf()))},"Matrix, Matrix, Matrix, Matrix":function(e,t,r,n){return i(o(e.valueOf(),t.valueOf(),r.valueOf(),n.valueOf()))}});function E(e){return"number"==typeof e||t.isBigNumber(e)}function D(e){return 2===e.length&&E(e[0])&&E(e[1])}function j(e){return 3===e.length&&E(e[0])&&E(e[1])&&E(e[2])}function F(e,t,r,n,i,o,a,s,u,c,f,l){var p=I(R(e,t),R(r,n)),m=I(R(i,o),R(a,s)),h=I(R(u,c),R(f,l));return B(B(p,m),h)}return o}},function(e,t,b){"use strict";t.name="distance",t.factory=function(t,e,r,n){var l=r(b(17)),p=r(b(15)),m=r(b(21)),h=r(b(12)),s=r(b(34)),d=r(b(45)),u=r(b(23));function i(e){return"number"==typeof e||t.isBigNumber(e)}function c(e){return e.constructor!==Array&&(e=f(e)),i(e[0])&&i(e[1])}function o(e){return e.constructor!==Array&&(e=f(e)),i(e[0])&&i(e[1])&&i(e[2])}function a(e){return e.constructor!==Array&&(e=f(e)),i(e[0])&&i(e[1])&&i(e[2])&&i(e[3])&&i(e[4])&&i(e[5])}function f(e){for(var t=Object.keys(e),r=[],n=0;nn)return e.substring(0,n);if(e.lengthh)throw new Error("computing square root of matrix: iterative method could not converge")}while(d>>=1;return(e+r)/t}},p.exports.resetGlobal=function(){Math.random=t},f(Math.random(),i)}).call(this,t(295))},function(e,t){var r;r=function(){return this}();try{r=r||new Function("return this")()}catch(e){"object"==typeof window&&(r=window)}e.exports=r},function(e,t,o){"use strict";t.name="random",t.factory=function(e,t,r,n){var i=r(o(96))("uniform").random;return i.toTex=void 0,i}},function(e,t,o){"use strict";t.name="randomInt",t.factory=function(e,t,r,n){var i=r(o(96))("uniform").randomInt;return i.toTex=void 0,i}},function(e,t,r){"use strict";e.exports=[r(54),r(29),r(140),r(299),r(50),r(300),r(33),r(128),r(40),r(301),r(124)]},function(e,t,a){"use strict";t.name="deepEqual",t.factory=function(e,t,r,n){var o=r(a(50)),i=n("deepEqual",{"any, any":function(e,t){return function e(t,r){if(Array.isArray(t)){if(Array.isArray(r)){var n=t.length;if(n!==r.length)return!1;for(var i=0;ie[n+1].length&&(t=e[n],e[n]=e[n+1],e[n+1]=t);return e}(r)}});function u(e,t){for(var r=[],n=0;nn&&(n=t[o],r=[o])}return r}}},function(e,t,u){"use strict";var c=u(46);t.name="prod",t.factory=function(e,t,r,n){var i=r(u(21)),o=r(u(37)),a=n("prod",{"Array | Matrix":s,"Array | Matrix, number | BigNumber":function(e,t){throw new Error("prod(A, dim) is not yet supported")},"...":function(e){return s(e)}});return a.toTex=void 0,a;function s(e){var r;if(c(e,function(t){try{r=void 0===r?t:i(r,t)}catch(e){throw o(e,"prod",t)}}),void 0===r)throw new Error("Cannot calculate prod of an empty array");return r}}},function(e,t,n){"use strict";var d=n(3).isInteger,S=n(3).isNumber,O=n(2).flatten,y=n(47);t.name="quantileSeq",t.factory=function(m,e,t,r){var w=t(n(14)),N=t(n(10)),M=t(n(93)),E=t(n(54));function h(e,t,r){var n=O(e),i=n.length;if(0===i)throw new Error("Cannot calculate quantile of an empty sequence");if(S(t)){var o=t*(i-1),a=o%1;if(0===a){var s=r?n[o]:M(n,o);return A(s),s}var u,c,f=Math.floor(o);if(r)u=n[f],c=n[f+1];else{c=M(n,f+1),u=n[f];for(var l=0;l1, -1 when x<0, and 0 when x=0.",examples:["sign(3.5)","sign(-4.2)","sign(0)"],seealso:["abs"]}},function(e,t){e.exports={name:"sqrt",category:"Arithmetic",syntax:["sqrt(x)"],description:"Compute the square root value. If x = y * y, then y is the square root of x.",examples:["sqrt(25)","5 * 5","sqrt(-1)"],seealso:["square","sqrtm","multiply","nthRoot","nthRoots","pow"]}},function(e,t){e.exports={name:"sqrtm",category:"Arithmetic",syntax:["sqrtm(x)"],description:"Calculate the principal square root of a square matrix. The principal square root matrix `X` of another matrix `A` is such that `X * X = A`.",examples:["sqrtm([[1, 2], [3, 4]])"],seealso:["sqrt","abs","square","multiply"]}},function(e,t){e.exports={name:"square",category:"Arithmetic",syntax:["square(x)"],description:"Compute the square of a value. The square of x is x * x.",examples:["square(3)","sqrt(9)","3^2","3 * 3"],seealso:["multiply","pow","sqrt","cube"]}},function(e,t){e.exports={name:"subtract",category:"Operators",syntax:["x - y","subtract(x, y)"],description:"subtract two values.",examples:["a = 5.3 - 2","a + 2","2/3 - 1/6","2 * 3 - 3","2.1 km - 500m"],seealso:["add"]}},function(e,t){e.exports={name:"unaryMinus",category:"Operators",syntax:["-x","unaryMinus(x)"],description:"Inverse the sign of a value. Converts booleans and strings to numbers.",examples:["-4.5","-(-5.6)",'-"22"'],seealso:["add","subtract","unaryPlus"]}},function(e,t){e.exports={name:"unaryPlus",category:"Operators",syntax:["+x","unaryPlus(x)"],description:"Converts booleans and strings to numbers.",examples:["+true",'+"2"'],seealso:["add","subtract","unaryMinus"]}},function(e,t){e.exports={name:"xgcd",category:"Arithmetic",syntax:["xgcd(a, b)"],description:"Calculate the extended greatest common divisor for two values. The result is an array [d, x, y] with 3 entries, where d is the greatest common divisor, and d = x * a + y * b.",examples:["xgcd(8, 12)","gcd(8, 12)","xgcd(36163, 21199)"],seealso:["gcd","lcm"]}},function(e,t){e.exports={name:"bitAnd",category:"Bitwise",syntax:["x & y","bitAnd(x, y)"],description:"Bitwise AND operation. Performs the logical AND operation on each pair of the corresponding bits of the two given values by multiplying them. If both bits in the compared position are 1, the bit in the resulting binary representation is 1, otherwise, the result is 0",examples:["5 & 3","bitAnd(53, 131)","[1, 12, 31] & 42"],seealso:["bitNot","bitOr","bitXor","leftShift","rightArithShift","rightLogShift"]}},function(e,t){e.exports={name:"bitNot",category:"Bitwise",syntax:["~x","bitNot(x)"],description:"Bitwise NOT operation. Performs a logical negation on each bit of the given value. Bits that are 0 become 1, and those that are 1 become 0.",examples:["~1","~2","bitNot([2, -3, 4])"],seealso:["bitAnd","bitOr","bitXor","leftShift","rightArithShift","rightLogShift"]}},function(e,t){e.exports={name:"bitOr",category:"Bitwise",syntax:["x | y","bitOr(x, y)"],description:"Bitwise OR operation. Performs the logical inclusive OR operation on each pair of corresponding bits of the two given values. The result in each position is 1 if the first bit is 1 or the second bit is 1 or both bits are 1, otherwise, the result is 0.",examples:["5 | 3","bitOr([1, 2, 3], 4)"],seealso:["bitAnd","bitNot","bitXor","leftShift","rightArithShift","rightLogShift"]}},function(e,t){e.exports={name:"bitXor",category:"Bitwise",syntax:["bitXor(x, y)"],description:"Bitwise XOR operation, exclusive OR. Performs the logical exclusive OR operation on each pair of corresponding bits of the two given values. The result in each position is 1 if only the first bit is 1 or only the second bit is 1, but will be 0 if both are 0 or both are 1.",examples:["bitOr(1, 2)","bitXor([2, 3, 4], 4)"],seealso:["bitAnd","bitNot","bitOr","leftShift","rightArithShift","rightLogShift"]}},function(e,t){e.exports={name:"leftShift",category:"Bitwise",syntax:["x << y","leftShift(x, y)"],description:"Bitwise left logical shift of a value x by y number of bits.",examples:["4 << 1","8 >> 1"],seealso:["bitAnd","bitNot","bitOr","bitXor","rightArithShift","rightLogShift"]}},function(e,t){e.exports={name:"rightArithShift",category:"Bitwise",syntax:["x >> y","rightArithShift(x, y)"],description:"Bitwise right arithmetic shift of a value x by y number of bits.",examples:["8 >> 1","4 << 1","-12 >> 2"],seealso:["bitAnd","bitNot","bitOr","bitXor","leftShift","rightLogShift"]}},function(e,t){e.exports={name:"rightLogShift",category:"Bitwise",syntax:["x >>> y","rightLogShift(x, y)"],description:"Bitwise right logical shift of a value x by y number of bits.",examples:["8 >>> 1","4 << 1","-12 >>> 2"],seealso:["bitAnd","bitNot","bitOr","bitXor","leftShift","rightArithShift"]}},function(e,t){e.exports={name:"bellNumbers",category:"Combinatorics",syntax:["bellNumbers(n)"],description:"The Bell Numbers count the number of partitions of a set. A partition is a pairwise disjoint subset of S whose union is S. `bellNumbers` only takes integer arguments. The following condition must be enforced: n >= 0.",examples:["bellNumbers(3)","bellNumbers(8)"],seealso:["stirlingS2"]}},function(e,t){e.exports={name:"catalan",category:"Combinatorics",syntax:["catalan(n)"],description:"The Catalan Numbers enumerate combinatorial structures of many different types. catalan only takes integer arguments. The following condition must be enforced: n >= 0.",examples:["catalan(3)","catalan(8)"],seealso:["bellNumbers"]}},function(e,t){e.exports={name:"composition",category:"Combinatorics",syntax:["composition(n, k)"],description:"The composition counts of n into k parts. composition only takes integer arguments. The following condition must be enforced: k <= n.",examples:["composition(5, 3)"],seealso:["combinations"]}},function(e,t){e.exports={name:"stirlingS2",category:"Combinatorics",syntax:["stirlingS2(n, k)"],description:"he Stirling numbers of the second kind, counts the number of ways to partition a set of n labelled objects into k nonempty unlabelled subsets. `stirlingS2` only takes integer arguments. The following condition must be enforced: k <= n. If n = k or k = 1, then s(n,k) = 1.",examples:["stirlingS2(5, 3)"],seealso:["bellNumbers"]}},function(e,t){e.exports={name:"config",category:"Core",syntax:["config()","config(options)"],description:"Get configuration or change configuration.",examples:["config()","1/3 + 1/4",'config({number: "Fraction"})',"1/3 + 1/4"],seealso:[]}},function(e,t){e.exports={name:"import",category:"Core",syntax:["import(functions)","import(functions, options)"],description:"Import functions or constants from an object.",examples:["import({myFn: f(x)=x^2, myConstant: 32 })","myFn(2)","myConstant"],seealso:[]}},function(e,t){e.exports={name:"typed",category:"Core",syntax:["typed(signatures)","typed(name, signatures)"],description:"Create a typed function.",examples:['double = typed({ "number, number": f(x)=x+x })',"double(2)",'double("hello")'],seealso:[]}},function(e,t){e.exports={name:"arg",category:"Complex",syntax:["arg(x)"],description:"Compute the argument of a complex value. If x = a+bi, the argument is computed as atan2(b, a).",examples:["arg(2 + 2i)","atan2(3, 2)","arg(2 + 3i)"],seealso:["re","im","conj","abs"]}},function(e,t){e.exports={name:"conj",category:"Complex",syntax:["conj(x)"],description:"Compute the complex conjugate of a complex value. If x = a+bi, the complex conjugate is a-bi.",examples:["conj(2 + 3i)","conj(2 - 3i)","conj(-5.2i)"],seealso:["re","im","abs","arg"]}},function(e,t){e.exports={name:"re",category:"Complex",syntax:["re(x)"],description:"Get the real part of a complex number.",examples:["re(2 + 3i)","im(2 + 3i)","re(-5.2i)","re(2.4)"],seealso:["im","conj","abs","arg"]}},function(e,t){e.exports={name:"im",category:"Complex",syntax:["im(x)"],description:"Get the imaginary part of a complex number.",examples:["im(2 + 3i)","re(2 + 3i)","im(-5.2i)","im(2.4)"],seealso:["re","conj","abs","arg"]}},function(e,t){e.exports={name:"eval",category:"Expression",syntax:["eval(expression)","eval([expr1, expr2, expr3, ...])"],description:"Evaluate an expression or an array with expressions.",examples:['eval("2 + 3")','eval("sqrt(" + 4 + ")")'],seealso:[]}},function(e,t){e.exports={name:"help",category:"Expression",syntax:["help(object)","help(string)"],description:"Display documentation on a function or data type.",examples:["help(sqrt)",'help("complex")'],seealso:[]}},function(e,t){e.exports={name:"distance",category:"Geometry",syntax:["distance([x1, y1], [x2, y2])","distance([[x1, y1], [x2, y2])"],description:"Calculates the Euclidean distance between two points.",examples:["distance([0,0], [4,4])","distance([[0,0], [4,4]])"],seealso:[]}},function(e,t){e.exports={name:"intersect",category:"Geometry",syntax:["intersect(expr1, expr2, expr3, expr4)","intersect(expr1, expr2, expr3)"],description:"Computes the intersection point of lines and/or planes.",examples:["intersect([0, 0], [10, 10], [10, 0], [0, 10])","intersect([1, 0, 1], [4, -2, 2], [1, 1, 1, 6])"],seealso:[]}},function(e,t){e.exports={name:"and",category:"Logical",syntax:["x and y","and(x, y)"],description:"Logical and. Test whether two values are both defined with a nonzero/nonempty value.",examples:["true and false","true and true","2 and 4"],seealso:["not","or","xor"]}},function(e,t){e.exports={name:"not",category:"Logical",syntax:["not x","not(x)"],description:"Logical not. Flips the boolean value of given argument.",examples:["not true","not false","not 2","not 0"],seealso:["and","or","xor"]}},function(e,t){e.exports={name:"or",category:"Logical",syntax:["x or y","or(x, y)"],description:"Logical or. Test if at least one value is defined with a nonzero/nonempty value.",examples:["true or false","false or false","0 or 4"],seealso:["not","and","xor"]}},function(e,t){e.exports={name:"xor",category:"Logical",syntax:["x xor y","xor(x, y)"],description:"Logical exclusive or, xor. Test whether one and only one value is defined with a nonzero/nonempty value.",examples:["true xor false","false xor false","true xor true","0 xor 4"],seealso:["not","and","or"]}},function(e,t){e.exports={name:"concat",category:"Matrix",syntax:["concat(A, B, C, ...)","concat(A, B, C, ..., dim)"],description:"Concatenate matrices. By default, the matrices are concatenated by the last dimension. The dimension on which to concatenate can be provided as last argument.",examples:["A = [1, 2; 5, 6]","B = [3, 4; 7, 8]","concat(A, B)","concat(A, B, 1)","concat(A, B, 2)"],seealso:["det","diag","identity","inv","ones","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"cross",category:"Matrix",syntax:["cross(A, B)"],description:"Calculate the cross product for two vectors in three dimensional space.",examples:["cross([1, 1, 0], [0, 1, 1])","cross([3, -3, 1], [4, 9, 2])","cross([2, 3, 4], [5, 6, 7])"],seealso:["multiply","dot"]}},function(e,t){e.exports={name:"transpose",category:"Matrix",syntax:["x'","ctranspose(x)"],description:"Complex Conjugate and Transpose a matrix",examples:["a = [1, 2, 3; 4, 5, 6]","a'","ctranspose(a)"],seealso:["concat","det","diag","identity","inv","ones","range","size","squeeze","subset","trace","zeros"]}},function(e,t){e.exports={name:"det",category:"Matrix",syntax:["det(x)"],description:"Calculate the determinant of a matrix",examples:["det([1, 2; 3, 4])","det([-2, 2, 3; -1, 1, 3; 2, 0, -1])"],seealso:["concat","diag","identity","inv","ones","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"diag",category:"Matrix",syntax:["diag(x)","diag(x, k)"],description:"Create a diagonal matrix or retrieve the diagonal of a matrix. When x is a vector, a matrix with the vector values on the diagonal will be returned. When x is a matrix, a vector with the diagonal values of the matrix is returned. When k is provided, the k-th diagonal will be filled in or retrieved, if k is positive, the values are placed on the super diagonal. When k is negative, the values are placed on the sub diagonal.",examples:["diag(1:3)","diag(1:3, 1)","a = [1, 2, 3; 4, 5, 6; 7, 8, 9]","diag(a)"],seealso:["concat","det","identity","inv","ones","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"dot",category:"Matrix",syntax:["dot(A, B)","A * B"],description:"Calculate the dot product of two vectors. The dot product of A = [a1, a2, a3, ..., an] and B = [b1, b2, b3, ..., bn] is defined as dot(A, B) = a1 * b1 + a2 * b2 + a3 * b3 + ... + an * bn",examples:["dot([2, 4, 1], [2, 2, 3])","[2, 4, 1] * [2, 2, 3]"],seealso:["multiply","cross"]}},function(e,t){e.exports={name:"getMatrixDataType",category:"Matrix",syntax:["getMatrixDataType(x)"],description:'Find the data type of all elements in a matrix or array, for example "number" if all items are a number and "Complex" if all values are complex numbers. If a matrix contains more than one data type, it will return "mixed".',examples:["getMatrixDataType([1, 2, 3])","getMatrixDataType([[5 cm], [2 inch]])",'getMatrixDataType([1, "text"])',"getMatrixDataType([1, bignumber(4)])"],seealso:["matrix","sparse","typeof"]}},function(e,t){e.exports={name:"identity",category:"Matrix",syntax:["identity(n)","identity(m, n)","identity([m, n])"],description:"Returns the identity matrix with size m-by-n. The matrix has ones on the diagonal and zeros elsewhere.",examples:["identity(3)","identity(3, 5)","a = [1, 2, 3; 4, 5, 6]","identity(size(a))"],seealso:["concat","det","diag","inv","ones","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"filter",category:"Matrix",syntax:["filter(x, test)"],description:"Filter items in a matrix.",examples:["isPositive(x) = x > 0","filter([6, -2, -1, 4, 3], isPositive)","filter([6, -2, 0, 1, 0], x != 0)"],seealso:["sort","map","forEach"]}},function(e,t){e.exports={name:"flatten",category:"Matrix",syntax:["flatten(x)"],description:"Flatten a multi dimensional matrix into a single dimensional matrix.",examples:["a = [1, 2, 3; 4, 5, 6]","size(a)","b = flatten(a)","size(b)"],seealso:["concat","resize","size","squeeze"]}},function(e,t){e.exports={name:"forEach",category:"Matrix",syntax:["forEach(x, callback)"],description:"Iterates over all elements of a matrix/array, and executes the given callback function.",examples:["forEach([1, 2, 3], function(val) { console.log(val) })"],seealso:["map","sort","filter"]}},function(e,t){e.exports={name:"inv",category:"Matrix",syntax:["inv(x)"],description:"Calculate the inverse of a matrix",examples:["inv([1, 2; 3, 4])","inv(4)","1 / 4"],seealso:["concat","det","diag","identity","ones","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"kron",category:"Matrix",syntax:["kron(x, y)"],description:"Calculates the kronecker product of 2 matrices or vectors.",examples:["kron([[1, 0], [0, 1]], [[1, 2], [3, 4]])","kron([1,1], [2,3,4])"],seealso:["multiply","dot","cross"]}},function(e,t){e.exports={name:"map",category:"Matrix",syntax:["map(x, callback)"],description:"Create a new matrix or array with the results of the callback function executed on each entry of the matrix/array.",examples:["map([1, 2, 3], square)"],seealso:["filter","forEach"]}},function(e,t){e.exports={name:"ones",category:"Matrix",syntax:["ones(m)","ones(m, n)","ones(m, n, p, ...)","ones([m])","ones([m, n])","ones([m, n, p, ...])"],description:"Create a matrix containing ones.",examples:["ones(3)","ones(3, 5)","ones([2,3]) * 4.5","a = [1, 2, 3; 4, 5, 6]","ones(size(a))"],seealso:["concat","det","diag","identity","inv","range","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"partitionSelect",category:"Matrix",syntax:["partitionSelect(x, k)","partitionSelect(x, k, compare)"],description:"Partition-based selection of an array or 1D matrix. Will find the kth smallest value, and mutates the input array. Uses Quickselect.",examples:["partitionSelect([5, 10, 1], 2)",'partitionSelect(["C", "B", "A", "D"], 1)'],seealso:["sort"]}},function(e,t){e.exports={name:"range",category:"Type",syntax:["start:end","start:step:end","range(start, end)","range(start, end, step)","range(string)"],description:"Create a range. Lower bound of the range is included, upper bound is excluded.",examples:["1:5","3:-1:-3","range(3, 7)","range(0, 12, 2)",'range("4:10")',"a = [1, 2, 3, 4; 5, 6, 7, 8]","a[1:2, 1:2]"],seealso:["concat","det","diag","identity","inv","ones","size","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"resize",category:"Matrix",syntax:["resize(x, size)","resize(x, size, defaultValue)"],description:"Resize a matrix.",examples:["resize([1,2,3,4,5], [3])","resize([1,2,3], [5])","resize([1,2,3], [5], -1)","resize(2, [2, 3])",'resize("hello", [8], "!")'],seealso:["size","subset","squeeze","reshape"]}},function(e,t){e.exports={name:"reshape",category:"Matrix",syntax:["reshape(x, sizes)"],description:"Reshape a multi dimensional array to fit the specified dimensions.",examples:["reshape([1, 2, 3, 4, 5, 6], [2, 3])","reshape([[1, 2], [3, 4]], [1, 4])","reshape([[1, 2], [3, 4]], [4])"],seealso:["size","squeeze","resize"]}},function(e,t){e.exports={name:"size",category:"Matrix",syntax:["size(x)"],description:"Calculate the size of a matrix.",examples:["size(2.3)",'size("hello world")',"a = [1, 2; 3, 4; 5, 6]","size(a)","size(1:6)"],seealso:["concat","det","diag","identity","inv","ones","range","squeeze","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"sort",category:"Matrix",syntax:["sort(x)","sort(x, compare)"],description:'Sort the items in a matrix. Compare can be a string "asc", "desc", "natural", or a custom sort function.',examples:["sort([5, 10, 1])",'sort(["C", "B", "A", "D"])',"sortByLength(a, b) = size(a)[1] - size(b)[1]",'sort(["Langdon", "Tom", "Sara"], sortByLength)','sort(["10", "1", "2"], "natural")'],seealso:["map","filter","forEach"]}},function(e,t){e.exports={name:"squeeze",category:"Matrix",syntax:["squeeze(x)"],description:"Remove inner and outer singleton dimensions from a matrix.",examples:["a = zeros(3,2,1)","size(squeeze(a))","b = zeros(1,1,3)","size(squeeze(b))"],seealso:["concat","det","diag","identity","inv","ones","range","size","subset","trace","transpose","zeros"]}},function(e,t){e.exports={name:"subset",category:"Matrix",syntax:["value(index)","value(index) = replacement","subset(value, [index])","subset(value, [index], replacement)"],description:"Get or set a subset of a matrix or string. Indexes are one-based. Both the ranges lower-bound and upper-bound are included.",examples:["d = [1, 2; 3, 4]","e = []","e[1, 1:2] = [5, 6]","e[2, :] = [7, 8]","f = d * e","f[2, 1]","f[:, 1]"],seealso:["concat","det","diag","identity","inv","ones","range","size","squeeze","trace","transpose","zeros"]}},function(e,t){e.exports={name:"trace",category:"Matrix",syntax:["trace(A)"],description:"Calculate the trace of a matrix: the sum of the elements on the main diagonal of a square matrix.",examples:["A = [1, 2, 3; -1, 2, 3; 2, 0, 3]","trace(A)"],seealso:["concat","det","diag","identity","inv","ones","range","size","squeeze","subset","transpose","zeros"]}},function(e,t){e.exports={name:"transpose",category:"Matrix",syntax:["x'","transpose(x)"],description:"Transpose a matrix",examples:["a = [1, 2, 3; 4, 5, 6]","a'","transpose(a)"],seealso:["concat","det","diag","identity","inv","ones","range","size","squeeze","subset","trace","zeros"]}},function(e,t){e.exports={name:"zeros",category:"Matrix",syntax:["zeros(m)","zeros(m, n)","zeros(m, n, p, ...)","zeros([m])","zeros([m, n])","zeros([m, n, p, ...])"],description:"Create a matrix containing zeros.",examples:["zeros(3)","zeros(3, 5)","a = [1, 2, 3; 4, 5, 6]","zeros(size(a))"],seealso:["concat","det","diag","identity","inv","ones","range","size","squeeze","subset","trace","transpose"]}},function(e,t){e.exports={name:"combinations",category:"Probability",syntax:["combinations(n, k)"],description:"Compute the number of combinations of n items taken k at a time",examples:["combinations(7, 5)"],seealso:["permutations","factorial"]}},function(e,t){e.exports={name:"factorial",category:"Probability",syntax:["n!","factorial(n)"],description:"Compute the factorial of a value",examples:["5!","5 * 4 * 3 * 2 * 1","3!"],seealso:["combinations","permutations","gamma"]}},function(e,t){e.exports={name:"gamma",category:"Probability",syntax:["gamma(n)"],description:"Compute the gamma function. For small values, the Lanczos approximation is used, and for large values the extended Stirling approximation.",examples:["gamma(4)","3!","gamma(1/2)","sqrt(pi)"],seealso:["factorial"]}},function(e,t){e.exports={name:"kldivergence",category:"Probability",syntax:["kldivergence(x, y)"],description:"Calculate the Kullback-Leibler (KL) divergence between two distributions.",examples:["kldivergence([0.7,0.5,0.4], [0.2,0.9,0.5])"],seealso:[]}},function(e,t){e.exports={name:"multinomial",category:"Probability",syntax:["multinomial(A)"],description:"Multinomial Coefficients compute the number of ways of picking a1, a2, ..., ai unordered outcomes from `n` possibilities. multinomial takes one array of integers as an argument. The following condition must be enforced: every ai > 0.",examples:["multinomial([1, 2, 1])"],seealso:["combinations","factorial"]}},function(e,t){e.exports={name:"permutations",category:"Probability",syntax:["permutations(n)","permutations(n, k)"],description:"Compute the number of permutations of n items taken k at a time",examples:["permutations(5)","permutations(5, 3)"],seealso:["combinations","factorial"]}},function(e,t){e.exports={name:"pickRandom",category:"Probability",syntax:["pickRandom(array)","pickRandom(array, number)","pickRandom(array, weights)","pickRandom(array, number, weights)","pickRandom(array, weights, number)"],description:"Pick a random entry from a given array.",examples:["pickRandom(0:10)","pickRandom([1, 3, 1, 6])","pickRandom([1, 3, 1, 6], 2)","pickRandom([1, 3, 1, 6], [2, 3, 2, 1])","pickRandom([1, 3, 1, 6], 2, [2, 3, 2, 1])","pickRandom([1, 3, 1, 6], [2, 3, 2, 1], 2)"],seealso:["random","randomInt"]}},function(e,t){e.exports={name:"random",category:"Probability",syntax:["random()","random(max)","random(min, max)","random(size)","random(size, max)","random(size, min, max)"],description:"Return a random number.",examples:["random()","random(10, 20)","random([2, 3])"],seealso:["pickRandom","randomInt"]}},function(e,t){e.exports={name:"randomInt",category:"Probability",syntax:["randomInt(max)","randomInt(min, max)","randomInt(size)","randomInt(size, max)","randomInt(size, min, max)"],description:"Return a random integer number",examples:["randomInt(10, 20)","randomInt([2, 3], 10)"],seealso:["pickRandom","random"]}},function(e,t){e.exports={name:"compare",category:"Relational",syntax:["compare(x, y)"],description:"Compare two values. Returns 1 when x > y, -1 when x < y, and 0 when x == y.",examples:["compare(2, 3)","compare(3, 2)","compare(2, 2)","compare(5cm, 40mm)","compare(2, [1, 2, 3])"],seealso:["equal","unequal","smaller","smallerEq","largerEq","compareNatural","compareText"]}},function(e,t){e.exports={name:"compareNatural",category:"Relational",syntax:["compareNatural(x, y)"],description:"Compare two values of any type in a deterministic, natural way. Returns 1 when x > y, -1 when x < y, and 0 when x == y.",examples:["compareNatural(2, 3)","compareNatural(3, 2)","compareNatural(2, 2)","compareNatural(5cm, 40mm)",'compareNatural("2", "10")',"compareNatural(2 + 3i, 2 + 4i)","compareNatural([1, 2, 4], [1, 2, 3])","compareNatural([1, 5], [1, 2, 3])","compareNatural([1, 2], [1, 2])","compareNatural({a: 2}, {a: 4})"],seealso:["equal","unequal","smaller","smallerEq","largerEq","compare","compareText"]}},function(e,t){e.exports={name:"compareText",category:"Relational",syntax:["compareText(x, y)"],description:"Compare two strings lexically. Comparison is case sensitive. Returns 1 when x > y, -1 when x < y, and 0 when x == y.",examples:['compareText("B", "A")','compareText("A", "B")','compareText("A", "A")','compareText("2", "10")','compare("2", "10")',"compare(2, 10)",'compareNatural("2", "10")','compareText("B", ["A", "B", "C"])'],seealso:["compare","compareNatural"]}},function(e,t){e.exports={name:"deepEqual",category:"Relational",syntax:["deepEqual(x, y)"],description:"Check equality of two matrices element wise. Returns true if the size of both matrices is equal and when and each of the elements are equal.",examples:["deepEqual([1,3,4], [1,3,4])","deepEqual([1,3,4], [1,3])"],seealso:["equal","unequal","smaller","larger","smallerEq","largerEq","compare"]}},function(e,t){e.exports={name:"equal",category:"Relational",syntax:["x == y","equal(x, y)"],description:"Check equality of two values. Returns true if the values are equal, and false if not.",examples:["2+2 == 3","2+2 == 4","a = 3.2","b = 6-2.8","a == b","50cm == 0.5m"],seealso:["unequal","smaller","larger","smallerEq","largerEq","compare","deepEqual","equalText"]}},function(e,t){e.exports={name:"equalText",category:"Relational",syntax:["equalText(x, y)"],description:"Check equality of two strings. Comparison is case sensitive. Returns true if the values are equal, and false if not.",examples:['equalText("Hello", "Hello")','equalText("a", "A")','equal("2e3", "2000")','equalText("2e3", "2000")','equalText("B", ["A", "B", "C"])'],seealso:["compare","compareNatural","compareText","equal"]}},function(e,t){e.exports={name:"larger",category:"Relational",syntax:["x > y","larger(x, y)"],description:"Check if value x is larger than y. Returns true if x is larger than y, and false if not.",examples:["2 > 3","5 > 2*2","a = 3.3","b = 6-2.8","(a > b)","(b < a)","5 cm > 2 inch"],seealso:["equal","unequal","smaller","smallerEq","largerEq","compare"]}},function(e,t){e.exports={name:"largerEq",category:"Relational",syntax:["x >= y","largerEq(x, y)"],description:"Check if value x is larger or equal to y. Returns true if x is larger or equal to y, and false if not.",examples:["2 >= 1+1","2 > 1+1","a = 3.2","b = 6-2.8","(a >= b)"],seealso:["equal","unequal","smallerEq","smaller","compare"]}},function(e,t){e.exports={name:"smaller",category:"Relational",syntax:["x < y","smaller(x, y)"],description:"Check if value x is smaller than value y. Returns true if x is smaller than y, and false if not.",examples:["2 < 3","5 < 2*2","a = 3.3","b = 6-2.8","(a < b)","5 cm < 2 inch"],seealso:["equal","unequal","larger","smallerEq","largerEq","compare"]}},function(e,t){e.exports={name:"smallerEq",category:"Relational",syntax:["x <= y","smallerEq(x, y)"],description:"Check if value x is smaller or equal to value y. Returns true if x is smaller than y, and false if not.",examples:["2 <= 1+1","2 < 1+1","a = 3.2","b = 6-2.8","(a <= b)"],seealso:["equal","unequal","larger","smaller","largerEq","compare"]}},function(e,t){e.exports={name:"unequal",category:"Relational",syntax:["x != y","unequal(x, y)"],description:"Check unequality of two values. Returns true if the values are unequal, and false if they are equal.",examples:["2+2 != 3","2+2 != 4","a = 3.2","b = 6-2.8","a != b","50cm != 0.5m","5 cm != 2 inch"],seealso:["equal","smaller","larger","smallerEq","largerEq","compare","deepEqual"]}},function(e,t){e.exports={name:"setCartesian",category:"Set",syntax:["setCartesian(set1, set2)"],description:"Create the cartesian product of two (multi)sets. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setCartesian([1, 2], [3, 4])"],seealso:["setUnion","setIntersect","setDifference","setPowerset"]}},function(e,t){e.exports={name:"setDifference",category:"Set",syntax:["setDifference(set1, set2)"],description:"Create the difference of two (multi)sets: every element of set1, that is not the element of set2. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setDifference([1, 2, 3, 4], [3, 4, 5, 6])","setDifference([[1, 2], [3, 4]], [[3, 4], [5, 6]])"],seealso:["setUnion","setIntersect","setSymDifference"]}},function(e,t){e.exports={name:"setDistinct",category:"Set",syntax:["setDistinct(set)"],description:"Collect the distinct elements of a multiset. A multi-dimension array will be converted to a single-dimension array before the operation.",examples:["setDistinct([1, 1, 1, 2, 2, 3])"],seealso:["setMultiplicity"]}},function(e,t){e.exports={name:"setIntersect",category:"Set",syntax:["setIntersect(set1, set2)"],description:"Create the intersection of two (multi)sets. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setIntersect([1, 2, 3, 4], [3, 4, 5, 6])","setIntersect([[1, 2], [3, 4]], [[3, 4], [5, 6]])"],seealso:["setUnion","setDifference"]}},function(e,t){e.exports={name:"setIsSubset",category:"Set",syntax:["setIsSubset(set1, set2)"],description:"Check whether a (multi)set is a subset of another (multi)set: every element of set1 is the element of set2. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setIsSubset([1, 2], [3, 4, 5, 6])","setIsSubset([3, 4], [3, 4, 5, 6])"],seealso:["setUnion","setIntersect","setDifference"]}},function(e,t){e.exports={name:"setMultiplicity",category:"Set",syntax:["setMultiplicity(element, set)"],description:"Count the multiplicity of an element in a multiset. A multi-dimension array will be converted to a single-dimension array before the operation.",examples:["setMultiplicity(1, [1, 2, 2, 4])","setMultiplicity(2, [1, 2, 2, 4])"],seealso:["setDistinct","setSize"]}},function(e,t){e.exports={name:"setPowerset",category:"Set",syntax:["setPowerset(set)"],description:"Create the powerset of a (multi)set: the powerset contains very possible subsets of a (multi)set. A multi-dimension array will be converted to a single-dimension array before the operation.",examples:["setPowerset([1, 2, 3])"],seealso:["setCartesian"]}},function(e,t){e.exports={name:"setSize",category:"Set",syntax:["setSize(set)","setSize(set, unique)"],description:'Count the number of elements of a (multi)set. When the second parameter "unique" is true, count only the unique values. A multi-dimension array will be converted to a single-dimension array before the operation.',examples:["setSize([1, 2, 2, 4])","setSize([1, 2, 2, 4], true)"],seealso:["setUnion","setIntersect","setDifference"]}},function(e,t){e.exports={name:"setSymDifference",category:"Set",syntax:["setSymDifference(set1, set2)"],description:"Create the symmetric difference of two (multi)sets. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setSymDifference([1, 2, 3, 4], [3, 4, 5, 6])","setSymDifference([[1, 2], [3, 4]], [[3, 4], [5, 6]])"],seealso:["setUnion","setIntersect","setDifference"]}},function(e,t){e.exports={name:"setUnion",category:"Set",syntax:["setUnion(set1, set2)"],description:"Create the union of two (multi)sets. Multi-dimension arrays will be converted to single-dimension arrays before the operation.",examples:["setUnion([1, 2, 3, 4], [3, 4, 5, 6])","setUnion([[1, 2], [3, 4]], [[3, 4], [5, 6]])"],seealso:["setIntersect","setDifference"]}},function(e,t){e.exports={name:"erf",category:"Special",syntax:["erf(x)"],description:"Compute the erf function of a value using a rational Chebyshev approximations for different intervals of x",examples:["erf(0.2)","erf(-0.5)","erf(4)"],seealso:[]}},function(e,t){e.exports={name:"mad",category:"Statistics",syntax:["mad(a, b, c, ...)","mad(A)"],description:"Compute the median absolute deviation of a matrix or a list with values. The median absolute deviation is defined as the median of the absolute deviations from the median.",examples:["mad(10, 20, 30)","mad([1, 2, 3])"],seealso:["mean","median","std","abs"]}},function(e,t){e.exports={name:"max",category:"Statistics",syntax:["max(a, b, c, ...)","max(A)","max(A, dim)"],description:"Compute the maximum value of a list of values.",examples:["max(2, 3, 4, 1)","max([2, 3, 4, 1])","max([2, 5; 4, 3])","max([2, 5; 4, 3], 1)","max([2, 5; 4, 3], 2)","max(2.7, 7.1, -4.5, 2.0, 4.1)","min(2.7, 7.1, -4.5, 2.0, 4.1)"],seealso:["mean","median","min","prod","std","sum","var"]}},function(e,t){e.exports={name:"mean",category:"Statistics",syntax:["mean(a, b, c, ...)","mean(A)","mean(A, dim)"],description:"Compute the arithmetic mean of a list of values.",examples:["mean(2, 3, 4, 1)","mean([2, 3, 4, 1])","mean([2, 5; 4, 3])","mean([2, 5; 4, 3], 1)","mean([2, 5; 4, 3], 2)","mean([1.0, 2.7, 3.2, 4.0])"],seealso:["max","median","min","prod","std","sum","var"]}},function(e,t){e.exports={name:"median",category:"Statistics",syntax:["median(a, b, c, ...)","median(A)"],description:"Compute the median of all values. The values are sorted and the middle value is returned. In case of an even number of values, the average of the two middle values is returned.",examples:["median(5, 2, 7)","median([3, -1, 5, 7])"],seealso:["max","mean","min","prod","std","sum","var","quantileSeq"]}},function(e,t){e.exports={name:"min",category:"Statistics",syntax:["min(a, b, c, ...)","min(A)","min(A, dim)"],description:"Compute the minimum value of a list of values.",examples:["min(2, 3, 4, 1)","min([2, 3, 4, 1])","min([2, 5; 4, 3])","min([2, 5; 4, 3], 1)","min([2, 5; 4, 3], 2)","min(2.7, 7.1, -4.5, 2.0, 4.1)","max(2.7, 7.1, -4.5, 2.0, 4.1)"],seealso:["max","mean","median","prod","std","sum","var"]}},function(e,t){e.exports={name:"mode",category:"Statistics",syntax:["mode(a, b, c, ...)","mode(A)","mode(A, a, b, B, c, ...)"],description:"Computes the mode of all values as an array. In case mode being more than one, multiple values are returned in an array.",examples:["mode(2, 1, 4, 3, 1)","mode([1, 2.7, 3.2, 4, 2.7])","mode(1, 4, 6, 1, 6)"],seealso:["max","mean","min","median","prod","std","sum","var"]}},function(e,t){e.exports={name:"prod",category:"Statistics",syntax:["prod(a, b, c, ...)","prod(A)"],description:"Compute the product of all values.",examples:["prod(2, 3, 4)","prod([2, 3, 4])","prod([2, 5; 4, 3])"],seealso:["max","mean","min","median","min","std","sum","var"]}},function(e,t){e.exports={name:"quantileSeq",category:"Statistics",syntax:["quantileSeq(A, prob[, sorted])","quantileSeq(A, [prob1, prob2, ...][, sorted])","quantileSeq(A, N[, sorted])"],description:"Compute the prob order quantile of a matrix or a list with values. The sequence is sorted and the middle value is returned. Supported types of sequence values are: Number, BigNumber, Unit Supported types of probablity are: Number, BigNumber. \n\nIn case of a (multi dimensional) array or matrix, the prob order quantile of all elements will be calculated.",examples:["quantileSeq([3, -1, 5, 7], 0.5)","quantileSeq([3, -1, 5, 7], [1/3, 2/3])","quantileSeq([3, -1, 5, 7], 2)","quantileSeq([-1, 3, 5, 7], 0.5, true)"],seealso:["mean","median","min","max","prod","std","sum","var"]}},function(e,t){e.exports={name:"std",category:"Statistics",syntax:["std(a, b, c, ...)","std(A)","std(A, normalization)"],description:'Compute the standard deviation of all values, defined as std(A) = sqrt(var(A)). Optional parameter normalization can be "unbiased" (default), "uncorrected", or "biased".',examples:["std(2, 4, 6)","std([2, 4, 6, 8])",'std([2, 4, 6, 8], "uncorrected")','std([2, 4, 6, 8], "biased")',"std([1, 2, 3; 4, 5, 6])"],seealso:["max","mean","min","median","min","prod","sum","var"]}},function(e,t){e.exports={name:"sum",category:"Statistics",syntax:["sum(a, b, c, ...)","sum(A)"],description:"Compute the sum of all values.",examples:["sum(2, 3, 4, 1)","sum([2, 3, 4, 1])","sum([2, 5; 4, 3])"],seealso:["max","mean","median","min","prod","std","sum","var"]}},function(e,t){e.exports={name:"var",category:"Statistics",syntax:["var(a, b, c, ...)","var(A)","var(A, normalization)"],description:'Compute the variance of all values. Optional parameter normalization can be "unbiased" (default), "uncorrected", or "biased".',examples:["var(2, 4, 6)","var([2, 4, 6, 8])",'var([2, 4, 6, 8], "uncorrected")','var([2, 4, 6, 8], "biased")',"var([1, 2, 3; 4, 5, 6])"],seealso:["max","mean","min","median","min","prod","std","sum"]}},function(e,t){e.exports={name:"acos",category:"Trigonometry",syntax:["acos(x)"],description:"Compute the inverse cosine of a value in radians.",examples:["acos(0.5)","acos(cos(2.3))"],seealso:["cos","atan","asin"]}},function(e,t){e.exports={name:"acosh",category:"Trigonometry",syntax:["acosh(x)"],description:"Calculate the hyperbolic arccos of a value, defined as `acosh(x) = ln(sqrt(x^2 - 1) + x)`.",examples:["acosh(1.5)"],seealso:["cosh","asinh","atanh"]}},function(e,t){e.exports={name:"acot",category:"Trigonometry",syntax:["acot(x)"],description:"Calculate the inverse cotangent of a value.",examples:["acot(0.5)","acot(cot(0.5))","acot(2)"],seealso:["cot","atan"]}},function(e,t){e.exports={name:"acoth",category:"Trigonometry",syntax:["acoth(x)"],description:"Calculate the hyperbolic arccotangent of a value, defined as `acoth(x) = (ln((x+1)/x) + ln(x/(x-1))) / 2`.",examples:["acoth(2)","acoth(0.5)"],seealso:["acsch","asech"]}},function(e,t){e.exports={name:"acsc",category:"Trigonometry",syntax:["acsc(x)"],description:"Calculate the inverse cotangent of a value.",examples:["acsc(2)","acsc(csc(0.5))","acsc(0.5)"],seealso:["csc","asin","asec"]}},function(e,t){e.exports={name:"acsch",category:"Trigonometry",syntax:["acsch(x)"],description:"Calculate the hyperbolic arccosecant of a value, defined as `acsch(x) = ln(1/x + sqrt(1/x^2 + 1))`.",examples:["acsch(0.5)"],seealso:["asech","acoth"]}},function(e,t){e.exports={name:"asec",category:"Trigonometry",syntax:["asec(x)"],description:"Calculate the inverse secant of a value.",examples:["asec(0.5)","asec(sec(0.5))","asec(2)"],seealso:["acos","acot","acsc"]}},function(e,t){e.exports={name:"asech",category:"Trigonometry",syntax:["asech(x)"],description:"Calculate the inverse secant of a value.",examples:["asech(0.5)"],seealso:["acsch","acoth"]}},function(e,t){e.exports={name:"asin",category:"Trigonometry",syntax:["asin(x)"],description:"Compute the inverse sine of a value in radians.",examples:["asin(0.5)","asin(sin(0.5))"],seealso:["sin","acos","atan"]}},function(e,t){e.exports={name:"asinh",category:"Trigonometry",syntax:["asinh(x)"],description:"Calculate the hyperbolic arcsine of a value, defined as `asinh(x) = ln(x + sqrt(x^2 + 1))`.",examples:["asinh(0.5)"],seealso:["acosh","atanh"]}},function(e,t){e.exports={name:"atan",category:"Trigonometry",syntax:["atan(x)"],description:"Compute the inverse tangent of a value in radians.",examples:["atan(0.5)","atan(tan(0.5))"],seealso:["tan","acos","asin"]}},function(e,t){e.exports={name:"atanh",category:"Trigonometry",syntax:["atanh(x)"],description:"Calculate the hyperbolic arctangent of a value, defined as `atanh(x) = ln((1 + x)/(1 - x)) / 2`.",examples:["atanh(0.5)"],seealso:["acosh","asinh"]}},function(e,t){e.exports={name:"atan2",category:"Trigonometry",syntax:["atan2(y, x)"],description:"Computes the principal value of the arc tangent of y/x in radians.",examples:["atan2(2, 2) / pi","angle = 60 deg in rad","x = cos(angle)","y = sin(angle)","atan2(y, x)"],seealso:["sin","cos","tan"]}},function(e,t){e.exports={name:"cos",category:"Trigonometry",syntax:["cos(x)"],description:"Compute the cosine of x in radians.",examples:["cos(2)","cos(pi / 4) ^ 2","cos(180 deg)","cos(60 deg)","sin(0.2)^2 + cos(0.2)^2"],seealso:["acos","sin","tan"]}},function(e,t){e.exports={name:"cosh",category:"Trigonometry",syntax:["cosh(x)"],description:"Compute the hyperbolic cosine of x in radians.",examples:["cosh(0.5)"],seealso:["sinh","tanh","coth"]}},function(e,t){e.exports={name:"cot",category:"Trigonometry",syntax:["cot(x)"],description:"Compute the cotangent of x in radians. Defined as 1/tan(x)",examples:["cot(2)","1 / tan(2)"],seealso:["sec","csc","tan"]}},function(e,t){e.exports={name:"coth",category:"Trigonometry",syntax:["coth(x)"],description:"Compute the hyperbolic cotangent of x in radians.",examples:["coth(2)","1 / tanh(2)"],seealso:["sech","csch","tanh"]}},function(e,t){e.exports={name:"csc",category:"Trigonometry",syntax:["csc(x)"],description:"Compute the cosecant of x in radians. Defined as 1/sin(x)",examples:["csc(2)","1 / sin(2)"],seealso:["sec","cot","sin"]}},function(e,t){e.exports={name:"csch",category:"Trigonometry",syntax:["csch(x)"],description:"Compute the hyperbolic cosecant of x in radians. Defined as 1/sinh(x)",examples:["csch(2)","1 / sinh(2)"],seealso:["sech","coth","sinh"]}},function(e,t){e.exports={name:"sec",category:"Trigonometry",syntax:["sec(x)"],description:"Compute the secant of x in radians. Defined as 1/cos(x)",examples:["sec(2)","1 / cos(2)"],seealso:["cot","csc","cos"]}},function(e,t){e.exports={name:"sech",category:"Trigonometry",syntax:["sech(x)"],description:"Compute the hyperbolic secant of x in radians. Defined as 1/cosh(x)",examples:["sech(2)","1 / cosh(2)"],seealso:["coth","csch","cosh"]}},function(e,t){e.exports={name:"sin",category:"Trigonometry",syntax:["sin(x)"],description:"Compute the sine of x in radians.",examples:["sin(2)","sin(pi / 4) ^ 2","sin(90 deg)","sin(30 deg)","sin(0.2)^2 + cos(0.2)^2"],seealso:["asin","cos","tan"]}},function(e,t){e.exports={name:"sinh",category:"Trigonometry",syntax:["sinh(x)"],description:"Compute the hyperbolic sine of x in radians.",examples:["sinh(0.5)"],seealso:["cosh","tanh"]}},function(e,t){e.exports={name:"tan",category:"Trigonometry",syntax:["tan(x)"],description:"Compute the tangent of x in radians.",examples:["tan(0.5)","sin(0.5) / cos(0.5)","tan(pi / 4)","tan(45 deg)"],seealso:["atan","sin","cos"]}},function(e,t){e.exports={name:"tanh",category:"Trigonometry",syntax:["tanh(x)"],description:"Compute the hyperbolic tangent of x in radians.",examples:["tanh(0.5)","sinh(0.5) / cosh(0.5)"],seealso:["sinh","cosh"]}},function(e,t){e.exports={name:"to",category:"Units",syntax:["x to unit","to(x, unit)"],description:"Change the unit of a value.",examples:["5 inch to cm","3.2kg to g","16 bytes in bits"],seealso:[]}},function(e,t){e.exports={name:"clone",category:"Utils",syntax:["clone(x)"],description:"Clone a variable. Creates a copy of primitive variables,and a deep copy of matrices",examples:["clone(3.5)","clone(2 - 4i)","clone(45 deg)","clone([1, 2; 3, 4])",'clone("hello world")'],seealso:[]}},function(e,t){e.exports={name:"format",category:"Utils",syntax:["format(value)","format(value, precision)"],description:"Format a value of any type as string.",examples:["format(2.3)","format(3 - 4i)","format([])","format(pi, 3)"],seealso:["print"]}},function(e,t){e.exports={name:"isNaN",category:"Utils",syntax:["isNaN(x)"],description:"Test whether a value is NaN (not a number)",examples:["isNaN(2)","isNaN(0 / 0)","isNaN(NaN)","isNaN(Infinity)"],seealso:["isNegative","isNumeric","isPositive","isZero"]}},function(e,t){e.exports={name:"isInteger",category:"Utils",syntax:["isInteger(x)"],description:"Test whether a value is an integer number.",examples:["isInteger(2)","isInteger(3.5)","isInteger([3, 0.5, -2])"],seealso:["isNegative","isNumeric","isPositive","isZero"]}},function(e,t){e.exports={name:"isNegative",category:"Utils",syntax:["isNegative(x)"],description:"Test whether a value is negative: smaller than zero.",examples:["isNegative(2)","isNegative(0)","isNegative(-4)","isNegative([3, 0.5, -2])"],seealso:["isInteger","isNumeric","isPositive","isZero"]}},function(e,t){e.exports={name:"isNumeric",category:"Utils",syntax:["isNumeric(x)"],description:"Test whether a value is a numeric value. Returns true when the input is a number, BigNumber, Fraction, or boolean.",examples:["isNumeric(2)","isNumeric(0)","isNumeric(bignumber(500))","isNumeric(fraction(0.125))",'isNumeric("3")',"isNumeric(2 + 3i)",'isNumeric([2.3, "foo", false])'],seealso:["isInteger","isZero","isNegative","isPositive","isNaN"]}},function(e,t){e.exports={name:"isPositive",category:"Utils",syntax:["isPositive(x)"],description:"Test whether a value is positive: larger than zero.",examples:["isPositive(2)","isPositive(0)","isPositive(-4)","isPositive([3, 0.5, -2])"],seealso:["isInteger","isNumeric","isNegative","isZero"]}},function(e,t){e.exports={name:"isPrime",category:"Utils",syntax:["isPrime(x)"],description:"Test whether a value is prime: has no divisors other than itself and one.",examples:["isPrime(3)","isPrime(-2)","isPrime([2, 17, 100])"],seealso:["isInteger","isNumeric","isNegative","isZero"]}},function(e,t){e.exports={name:"isZero",category:"Utils",syntax:["isZero(x)"],description:"Test whether a value is zero.",examples:["isZero(2)","isZero(0)","isZero(-4)","isZero([3, 0, -2, 0])"],seealso:["isInteger","isNumeric","isNegative","isPositive"]}},function(e,t){e.exports={name:"typeof",category:"Utils",syntax:["typeof(x)"],description:"Get the type of a variable.",examples:["typeof(3.5)","typeof(2 - 4i)","typeof(45 deg)",'typeof("hello world")'],seealso:["getMatrixDataType"]}},function(e,t,r){"use strict";e.exports=[r(556),r(557),r(558),r(123),r(151)]},function(e,t,o){"use strict";var a=o(0);t.name="compile",t.factory=function(e,t,r,n){var i=r(o(43));return n("compile",{string:function(e){return i(e).compile()},"Array | Matrix":function(e){return a(e,function(e){return i(e).compile()})}})}},function(e,t,o){"use strict";var a=o(0);t.name="eval",t.factory=function(e,t,r,n){var i=r(o(43));return n("compile",{string:function(e){return i(e).compile().eval({})},"string, Object":function(e,t){return i(e).compile().eval(t)},"Array | Matrix":function(e){var t={};return a(e,function(e){return i(e).compile().eval(t)})},"Array | Matrix, Object":function(e,t){return a(e,function(e){return i(e).compile().eval(t)})}})}},function(e,t,n){"use strict";var s=n(13).getSafeProperty;t.math=!0,t.name="help",t.factory=function(i,e,t,r,o){var a=t(n(148));return r("help",{any:function(e){var t,r=e;if("string"!=typeof e)for(t in o)if(Object.prototype.hasOwnProperty.call(o, t)&&e===o[t]){r=t;break}var n=s(a,r);if(!n)throw new Error('No documentation found on "'+r+'"');return new i.Help(n)}})}},function(e,t,r){"use strict";e.exports=[r(107),r(110),r(111),r(112),r(113),r(57),r(115),r(114),r(68),r(16),r(116),r(58),r(67),r(117),r(118),r(53),r(560)]},function(e,t,r){"use strict";t.name="UpdateNode",t.path="expression.node",t.factory=function(e,t,r,n){return function(){throw new Error("UpdateNode is deprecated. Use AssignmentNode instead.")}}},function(e,t,r){"use strict";e.exports=[r(562),r(563),r(564),r(565),r(566),r(567),r(568),r(569),r(570),r(571),r(572)]},function(e,t,o){"use strict";var a=o(35).transform;t.name="concat",t.path="expression.transform",t.factory=function(n,e,t,r){var i=t(o(76));return r("concat",{"...any":function(e){var t=e.length-1,r=e[t];n.isNumber(r)?e[t]=r-1:n.isBigNumber(r)&&(e[t]=r.minus(1));try{return i.apply(null,e)}catch(e){throw a(e)}}})}},function(e,t,u){"use strict";var r=u(2).filter,c=u(2).filterRegExp,o=u(31).maxArgumentCount;function f(e,n){var i=o(n);return r(e,function(e,t,r){return 1===i?n(e):2===i?n(e,[t+1]):n(e,[t+1],r)})}t.name="filter",t.path="expression.transform",t.factory=function(o,e,t,r){var a=t(u(97)),n=t(u(1));function i(e,t,r){var n,i;return e[0]&&(n=e[0].compile().eval(r)),e[1]&&(i=o.isSymbolNode(e[1])||o.isFunctionAssignmentNode(e[1])?e[1].compile().eval(r):a(e[1],t,r)),s(n,i)}i.rawArgs=!0;var s=r("filter",{"Array, function":f,"Matrix, function":function(e,t){return n(f(e.toArray(),t))},"Array, RegExp":c,"Matrix, RegExp":function(e,t){return n(c(e.toArray(),t))}});return s.toTex=void 0,i}},function(e,t,i){"use strict";var u=i(31).maxArgumentCount,c=i(2).forEach;t.name="forEach",t.path="expression.transform",t.factory=function(o,e,t,r){var a=t(i(97));function n(e,t,r){var n,i;return e[0]&&(n=e[0].compile().eval(r)),e[1]&&(i=o.isSymbolNode(e[1])||o.isFunctionAssignmentNode(e[1])?e[1].compile().eval(r):a(e[1],t,r)),s(n,i)}n.rawArgs=!0;var s=r("forEach",{"Array | Matrix, function":function(t,i){var o=u(i);!function r(e,n){Array.isArray(e)?c(e,function(e,t){r(e,n.concat(t+1))}):1===o?i(e):2===o?i(e,n):i(e,n,t)}(t.valueOf(),[])}});return n}},function(e,t,r){"use strict";t.name="index",t.path="expression.transform",t.factory=function(o,e,t){return function(){for(var e=[],t=0,r=arguments.length;tHow to Solve Quadratic Equations
    x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}
    +

    Spoken Text

    +

    SSML version of Spoken Text