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338 lines
10 KiB
338 lines
10 KiB
(function webpackUniversalModuleDefinition(root, factory) { |
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if(typeof exports === 'object' && typeof module === 'object') |
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module.exports = factory(require("katex")); |
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else if(typeof define === 'function' && define.amd) |
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define(["katex"], factory); |
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else if(typeof exports === 'object') |
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exports["renderMathInElement"] = factory(require("katex")); |
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else |
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root["renderMathInElement"] = factory(root["katex"]); |
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})((typeof self !== 'undefined' ? self : this), function(__WEBPACK_EXTERNAL_MODULE__757__) { |
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return /******/ (function() { // webpackBootstrap |
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/******/ "use strict"; |
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/******/ var __webpack_modules__ = ({ |
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/***/ 757: |
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/***/ (function(module) { |
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module.exports = __WEBPACK_EXTERNAL_MODULE__757__; |
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/***/ }) |
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/******/ }); |
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/************************************************************************/ |
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/******/ // The module cache |
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/******/ var __webpack_module_cache__ = {}; |
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/******/ |
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/******/ // The require function |
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/******/ function __webpack_require__(moduleId) { |
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/******/ // Check if module is in cache |
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/******/ var cachedModule = __webpack_module_cache__[moduleId]; |
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/******/ if (cachedModule !== undefined) { |
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/******/ return cachedModule.exports; |
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/******/ } |
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/******/ // Create a new module (and put it into the cache) |
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/******/ var module = __webpack_module_cache__[moduleId] = { |
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/******/ // no module.id needed |
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/******/ // no module.loaded needed |
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/******/ exports: {} |
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/******/ }; |
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/******/ |
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/******/ // Execute the module function |
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/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__); |
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/******/ |
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/******/ // Return the exports of the module |
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/******/ return module.exports; |
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/******/ } |
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/******/ |
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/************************************************************************/ |
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/******/ /* webpack/runtime/compat get default export */ |
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/******/ !function() { |
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/******/ // getDefaultExport function for compatibility with non-harmony modules |
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/******/ __webpack_require__.n = function(module) { |
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/******/ var getter = module && module.__esModule ? |
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/******/ function() { return module['default']; } : |
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/******/ function() { return module; }; |
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/******/ __webpack_require__.d(getter, { a: getter }); |
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/******/ return getter; |
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/******/ }; |
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/******/ }(); |
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/******/ |
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/******/ /* webpack/runtime/define property getters */ |
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/******/ !function() { |
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/******/ // define getter functions for harmony exports |
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/******/ __webpack_require__.d = function(exports, definition) { |
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/******/ for(var key in definition) { |
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/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) { |
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/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] }); |
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/******/ } |
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/******/ } |
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/******/ }; |
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/******/ }(); |
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/******/ |
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/******/ /* webpack/runtime/hasOwnProperty shorthand */ |
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/******/ !function() { |
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/******/ __webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); } |
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/******/ }(); |
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/******/ |
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/************************************************************************/ |
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var __webpack_exports__ = {}; |
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// EXPORTS |
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__webpack_require__.d(__webpack_exports__, { |
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"default": function() { return /* binding */ auto_render; } |
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}); |
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// EXTERNAL MODULE: external "katex" |
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var external_katex_ = __webpack_require__(757); |
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var external_katex_default = /*#__PURE__*/__webpack_require__.n(external_katex_); |
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;// CONCATENATED MODULE: ./contrib/auto-render/splitAtDelimiters.js |
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/* eslint no-constant-condition:0 */ |
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const findEndOfMath = function (delimiter, text, startIndex) { |
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// Adapted from |
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// https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx |
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let index = startIndex; |
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let braceLevel = 0; |
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const delimLength = delimiter.length; |
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while (index < text.length) { |
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const character = text[index]; |
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if (braceLevel <= 0 && text.slice(index, index + delimLength) === delimiter) { |
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return index; |
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} else if (character === "\\") { |
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index++; |
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} else if (character === "{") { |
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braceLevel++; |
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} else if (character === "}") { |
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braceLevel--; |
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} |
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index++; |
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} |
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return -1; |
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}; |
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const escapeRegex = function (string) { |
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return string.replace(/[-/\\^$*+?.()|[\]{}]/g, "\\$&"); |
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}; |
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const amsRegex = /^\\begin{/; |
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const splitAtDelimiters = function (text, delimiters) { |
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let index; |
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const data = []; |
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const regexLeft = new RegExp("(" + delimiters.map(x => escapeRegex(x.left)).join("|") + ")"); |
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while (true) { |
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index = text.search(regexLeft); |
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if (index === -1) { |
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break; |
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} |
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if (index > 0) { |
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data.push({ |
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type: "text", |
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data: text.slice(0, index) |
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}); |
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text = text.slice(index); // now text starts with delimiter |
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} // ... so this always succeeds: |
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const i = delimiters.findIndex(delim => text.startsWith(delim.left)); |
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index = findEndOfMath(delimiters[i].right, text, delimiters[i].left.length); |
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if (index === -1) { |
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break; |
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} |
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const rawData = text.slice(0, index + delimiters[i].right.length); |
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const math = amsRegex.test(rawData) ? rawData : text.slice(delimiters[i].left.length, index); |
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data.push({ |
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type: "math", |
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data: math, |
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rawData, |
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display: delimiters[i].display |
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}); |
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text = text.slice(index + delimiters[i].right.length); |
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} |
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if (text !== "") { |
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data.push({ |
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type: "text", |
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data: text |
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}); |
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} |
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return data; |
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}; |
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/* harmony default export */ var auto_render_splitAtDelimiters = (splitAtDelimiters); |
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;// CONCATENATED MODULE: ./contrib/auto-render/auto-render.js |
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/* eslint no-console:0 */ |
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/* Note: optionsCopy is mutated by this method. If it is ever exposed in the |
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* API, we should copy it before mutating. |
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*/ |
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const renderMathInText = function (text, optionsCopy) { |
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const data = auto_render_splitAtDelimiters(text, optionsCopy.delimiters); |
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if (data.length === 1 && data[0].type === 'text') { |
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// There is no formula in the text. |
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// Let's return null which means there is no need to replace |
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// the current text node with a new one. |
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return null; |
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} |
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const fragment = document.createDocumentFragment(); |
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for (let i = 0; i < data.length; i++) { |
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if (data[i].type === "text") { |
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fragment.appendChild(document.createTextNode(data[i].data)); |
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} else { |
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const span = document.createElement("span"); |
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let math = data[i].data; // Override any display mode defined in the settings with that |
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// defined by the text itself |
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optionsCopy.displayMode = data[i].display; |
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try { |
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if (optionsCopy.preProcess) { |
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math = optionsCopy.preProcess(math); |
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} |
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external_katex_default().render(math, span, optionsCopy); |
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} catch (e) { |
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if (!(e instanceof (external_katex_default()).ParseError)) { |
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throw e; |
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} |
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optionsCopy.errorCallback("KaTeX auto-render: Failed to parse `" + data[i].data + "` with ", e); |
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fragment.appendChild(document.createTextNode(data[i].rawData)); |
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continue; |
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} |
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fragment.appendChild(span); |
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} |
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} |
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return fragment; |
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}; |
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const renderElem = function (elem, optionsCopy) { |
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for (let i = 0; i < elem.childNodes.length; i++) { |
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const childNode = elem.childNodes[i]; |
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if (childNode.nodeType === 3) { |
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// Text node |
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// Concatenate all sibling text nodes. |
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// Webkit browsers split very large text nodes into smaller ones, |
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// so the delimiters may be split across different nodes. |
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let textContentConcat = childNode.textContent; |
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let sibling = childNode.nextSibling; |
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let nSiblings = 0; |
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while (sibling && sibling.nodeType === Node.TEXT_NODE) { |
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textContentConcat += sibling.textContent; |
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sibling = sibling.nextSibling; |
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nSiblings++; |
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} |
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const frag = renderMathInText(textContentConcat, optionsCopy); |
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if (frag) { |
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// Remove extra text nodes |
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for (let j = 0; j < nSiblings; j++) { |
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childNode.nextSibling.remove(); |
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} |
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i += frag.childNodes.length - 1; |
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elem.replaceChild(frag, childNode); |
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} else { |
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// If the concatenated text does not contain math |
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// the siblings will not either |
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i += nSiblings; |
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} |
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} else if (childNode.nodeType === 1) { |
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// Element node |
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const className = ' ' + childNode.className + ' '; |
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const shouldRender = optionsCopy.ignoredTags.indexOf(childNode.nodeName.toLowerCase()) === -1 && optionsCopy.ignoredClasses.every(x => className.indexOf(' ' + x + ' ') === -1); |
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if (shouldRender) { |
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renderElem(childNode, optionsCopy); |
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} |
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} // Otherwise, it's something else, and ignore it. |
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} |
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}; |
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const renderMathInElement = function (elem, options) { |
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if (!elem) { |
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throw new Error("No element provided to render"); |
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} |
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const optionsCopy = {}; // Object.assign(optionsCopy, option) |
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for (const option in options) { |
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if (options.hasOwnProperty(option)) { |
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optionsCopy[option] = options[option]; |
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} |
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} // default options |
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optionsCopy.delimiters = optionsCopy.delimiters || [{ |
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left: "$$", |
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right: "$$", |
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display: true |
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}, { |
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left: "\\(", |
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right: "\\)", |
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display: false |
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}, // LaTeX uses $…$, but it ruins the display of normal `$` in text: |
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// {left: "$", right: "$", display: false}, |
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// $ must come after $$ |
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// Render AMS environments even if outside $$…$$ delimiters. |
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{ |
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left: "\\begin{equation}", |
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right: "\\end{equation}", |
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display: true |
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}, { |
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left: "\\begin{align}", |
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right: "\\end{align}", |
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display: true |
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}, { |
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left: "\\begin{alignat}", |
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right: "\\end{alignat}", |
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display: true |
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}, { |
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left: "\\begin{gather}", |
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right: "\\end{gather}", |
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display: true |
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}, { |
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left: "\\begin{CD}", |
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right: "\\end{CD}", |
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display: true |
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}, { |
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left: "\\[", |
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right: "\\]", |
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display: true |
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}]; |
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optionsCopy.ignoredTags = optionsCopy.ignoredTags || ["script", "noscript", "style", "textarea", "pre", "code", "option"]; |
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optionsCopy.ignoredClasses = optionsCopy.ignoredClasses || []; |
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optionsCopy.errorCallback = optionsCopy.errorCallback || console.error; // Enable sharing of global macros defined via `\gdef` between different |
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// math elements within a single call to `renderMathInElement`. |
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optionsCopy.macros = optionsCopy.macros || {}; |
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renderElem(elem, optionsCopy); |
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}; |
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/* harmony default export */ var auto_render = (renderMathInElement); |
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__webpack_exports__ = __webpack_exports__["default"]; |
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/******/ return __webpack_exports__; |
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/******/ })() |
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; |
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}); |