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annotate katex/contrib/auto-render.js @ 8:4a25b534c81c javascript-experiment

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Add v8 engine and include katex
author Jonatan Werpers <jonatan@werpers.com>
date Wed, 17 Jun 2020 21:43:52 +0200
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Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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8
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1 (function webpackUniversalModuleDefinition(root, factory) {
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2 if(typeof exports === 'object' && typeof module === 'object')
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3 module.exports = factory(require("katex"));
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4 else if(typeof define === 'function' && define.amd)
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5 define(["katex"], factory);
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6 else if(typeof exports === 'object')
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7 exports["renderMathInElement"] = factory(require("katex"));
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8 else
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9 root["renderMathInElement"] = factory(root["katex"]);
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10 })((typeof self !== 'undefined' ? self : this), function(__WEBPACK_EXTERNAL_MODULE__0__) {
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11 return /******/ (function(modules) { // webpackBootstrap
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12 /******/ // The module cache
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13 /******/ var installedModules = {};
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14 /******/
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15 /******/ // The require function
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16 /******/ function __webpack_require__(moduleId) {
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17 /******/
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18 /******/ // Check if module is in cache
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19 /******/ if(installedModules[moduleId]) {
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20 /******/ return installedModules[moduleId].exports;
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21 /******/ }
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22 /******/ // Create a new module (and put it into the cache)
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23 /******/ var module = installedModules[moduleId] = {
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24 /******/ i: moduleId,
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25 /******/ l: false,
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26 /******/ exports: {}
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27 /******/ };
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28 /******/
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29 /******/ // Execute the module function
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30 /******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
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31 /******/
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32 /******/ // Flag the module as loaded
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33 /******/ module.l = true;
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34 /******/
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35 /******/ // Return the exports of the module
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36 /******/ return module.exports;
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37 /******/ }
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38 /******/
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39 /******/
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40 /******/ // expose the modules object (__webpack_modules__)
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41 /******/ __webpack_require__.m = modules;
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42 /******/
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43 /******/ // expose the module cache
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44 /******/ __webpack_require__.c = installedModules;
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45 /******/
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46 /******/ // define getter function for harmony exports
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47 /******/ __webpack_require__.d = function(exports, name, getter) {
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48 /******/ if(!__webpack_require__.o(exports, name)) {
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49 /******/ Object.defineProperty(exports, name, { enumerable: true, get: getter });
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50 /******/ }
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51 /******/ };
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52 /******/
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53 /******/ // define __esModule on exports
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54 /******/ __webpack_require__.r = function(exports) {
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55 /******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
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56 /******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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57 /******/ }
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58 /******/ Object.defineProperty(exports, '__esModule', { value: true });
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59 /******/ };
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60 /******/
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61 /******/ // create a fake namespace object
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62 /******/ // mode & 1: value is a module id, require it
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63 /******/ // mode & 2: merge all properties of value into the ns
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64 /******/ // mode & 4: return value when already ns object
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65 /******/ // mode & 8|1: behave like require
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66 /******/ __webpack_require__.t = function(value, mode) {
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67 /******/ if(mode & 1) value = __webpack_require__(value);
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68 /******/ if(mode & 8) return value;
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69 /******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
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70 /******/ var ns = Object.create(null);
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71 /******/ __webpack_require__.r(ns);
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72 /******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value });
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73 /******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
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74 /******/ return ns;
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75 /******/ };
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76 /******/
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77 /******/ // getDefaultExport function for compatibility with non-harmony modules
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78 /******/ __webpack_require__.n = function(module) {
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79 /******/ var getter = module && module.__esModule ?
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80 /******/ function getDefault() { return module['default']; } :
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81 /******/ function getModuleExports() { return module; };
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82 /******/ __webpack_require__.d(getter, 'a', getter);
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83 /******/ return getter;
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84 /******/ };
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85 /******/
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86 /******/ // Object.prototype.hasOwnProperty.call
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87 /******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
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88 /******/
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89 /******/ // __webpack_public_path__
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90 /******/ __webpack_require__.p = "";
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91 /******/
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92 /******/
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93 /******/ // Load entry module and return exports
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94 /******/ return __webpack_require__(__webpack_require__.s = 1);
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95 /******/ })
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96 /************************************************************************/
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97 /******/ ([
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98 /* 0 */
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99 /***/ (function(module, exports) {
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100
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101 module.exports = __WEBPACK_EXTERNAL_MODULE__0__;
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102
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103 /***/ }),
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104 /* 1 */
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105 /***/ (function(module, __webpack_exports__, __webpack_require__) {
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106
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107 "use strict";
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108 __webpack_require__.r(__webpack_exports__);
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109
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110 // EXTERNAL MODULE: external "katex"
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111 var external_katex_ = __webpack_require__(0);
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112 var external_katex_default = /*#__PURE__*/__webpack_require__.n(external_katex_);
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113
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114 // CONCATENATED MODULE: ./contrib/auto-render/splitAtDelimiters.js
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115 /* eslint no-constant-condition:0 */
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116 var findEndOfMath = function findEndOfMath(delimiter, text, startIndex) {
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117 // Adapted from
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118 // https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx
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119 var index = startIndex;
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120 var braceLevel = 0;
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121 var delimLength = delimiter.length;
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122
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123 while (index < text.length) {
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124 var character = text[index];
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125
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126 if (braceLevel <= 0 && text.slice(index, index + delimLength) === delimiter) {
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127 return index;
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128 } else if (character === "\\") {
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129 index++;
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130 } else if (character === "{") {
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131 braceLevel++;
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132 } else if (character === "}") {
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133 braceLevel--;
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134 }
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135
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136 index++;
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137 }
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138
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139 return -1;
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140 };
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141
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142 var splitAtDelimiters = function splitAtDelimiters(startData, leftDelim, rightDelim, display) {
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143 var finalData = [];
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144
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145 for (var i = 0; i < startData.length; i++) {
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146 if (startData[i].type === "text") {
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147 var text = startData[i].data;
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148 var lookingForLeft = true;
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149 var currIndex = 0;
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150 var nextIndex = void 0;
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151 nextIndex = text.indexOf(leftDelim);
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152
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153 if (nextIndex !== -1) {
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154 currIndex = nextIndex;
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155 finalData.push({
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156 type: "text",
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157 data: text.slice(0, currIndex)
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158 });
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159 lookingForLeft = false;
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160 }
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161
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162 while (true) {
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Jonatan Werpers <jonatan@werpers.com>
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163 if (lookingForLeft) {
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164 nextIndex = text.indexOf(leftDelim, currIndex);
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165
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166 if (nextIndex === -1) {
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167 break;
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
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168 }
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169
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170 finalData.push({
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171 type: "text",
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172 data: text.slice(currIndex, nextIndex)
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Jonatan Werpers <jonatan@werpers.com>
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173 });
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Jonatan Werpers <jonatan@werpers.com>
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174 currIndex = nextIndex;
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Jonatan Werpers <jonatan@werpers.com>
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175 } else {
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Jonatan Werpers <jonatan@werpers.com>
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176 nextIndex = findEndOfMath(rightDelim, text, currIndex + leftDelim.length);
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177
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178 if (nextIndex === -1) {
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179 break;
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Jonatan Werpers <jonatan@werpers.com>
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180 }
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Jonatan Werpers <jonatan@werpers.com>
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181
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182 finalData.push({
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183 type: "math",
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Jonatan Werpers <jonatan@werpers.com>
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184 data: text.slice(currIndex + leftDelim.length, nextIndex),
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Jonatan Werpers <jonatan@werpers.com>
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185 rawData: text.slice(currIndex, nextIndex + rightDelim.length),
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Jonatan Werpers <jonatan@werpers.com>
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186 display: display
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Jonatan Werpers <jonatan@werpers.com>
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187 });
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
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188 currIndex = nextIndex + rightDelim.length;
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Jonatan Werpers <jonatan@werpers.com>
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189 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
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190
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191 lookingForLeft = !lookingForLeft;
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Jonatan Werpers <jonatan@werpers.com>
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192 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
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193
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diff changeset
194 finalData.push({
4a25b534c81c Add v8 engine and include katex
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195 type: "text",
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Jonatan Werpers <jonatan@werpers.com>
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196 data: text.slice(currIndex)
4a25b534c81c Add v8 engine and include katex
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197 });
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
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198 } else {
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199 finalData.push(startData[i]);
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200 }
4a25b534c81c Add v8 engine and include katex
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diff changeset
201 }
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
202
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203 return finalData;
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Jonatan Werpers <jonatan@werpers.com>
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diff changeset
204 };
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
205
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
206 /* harmony default export */ var auto_render_splitAtDelimiters = (splitAtDelimiters);
4a25b534c81c Add v8 engine and include katex
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parents:
diff changeset
207 // CONCATENATED MODULE: ./contrib/auto-render/auto-render.js
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208 /* eslint no-console:0 */
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209
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
210
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
211
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
212 var auto_render_splitWithDelimiters = function splitWithDelimiters(text, delimiters) {
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213 var data = [{
4a25b534c81c Add v8 engine and include katex
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diff changeset
214 type: "text",
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215 data: text
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
216 }];
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
217
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
218 for (var i = 0; i < delimiters.length; i++) {
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
219 var delimiter = delimiters[i];
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
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diff changeset
220 data = auto_render_splitAtDelimiters(data, delimiter.left, delimiter.right, delimiter.display || false);
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
221 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
222
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
223 return data;
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
224 };
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
225 /* Note: optionsCopy is mutated by this method. If it is ever exposed in the
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
226 * API, we should copy it before mutating.
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
227 */
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
228
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
229
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
230 var auto_render_renderMathInText = function renderMathInText(text, optionsCopy) {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
231 var data = auto_render_splitWithDelimiters(text, optionsCopy.delimiters);
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
232 var fragment = document.createDocumentFragment();
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
233
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
234 for (var i = 0; i < data.length; i++) {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
235 if (data[i].type === "text") {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
236 fragment.appendChild(document.createTextNode(data[i].data));
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
237 } else {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
238 var span = document.createElement("span");
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
239 var math = data[i].data; // Override any display mode defined in the settings with that
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
240 // defined by the text itself
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
241
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
242 optionsCopy.displayMode = data[i].display;
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
243
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
244 try {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
245 if (optionsCopy.preProcess) {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
246 math = optionsCopy.preProcess(math);
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
247 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
248
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
249 external_katex_default.a.render(math, span, optionsCopy);
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
250 } catch (e) {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
251 if (!(e instanceof external_katex_default.a.ParseError)) {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
252 throw e;
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
253 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
254
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
255 optionsCopy.errorCallback("KaTeX auto-render: Failed to parse `" + data[i].data + "` with ", e);
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
256 fragment.appendChild(document.createTextNode(data[i].rawData));
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
257 continue;
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
258 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
259
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
260 fragment.appendChild(span);
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
261 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
262 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
263
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
264 return fragment;
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
265 };
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
266
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
267 var renderElem = function renderElem(elem, optionsCopy) {
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
268 for (var i = 0; i < elem.childNodes.length; i++) {
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
269 var childNode = elem.childNodes[i];
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
270
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
271 if (childNode.nodeType === 3) {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
272 // Text node
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
273 var frag = auto_render_renderMathInText(childNode.textContent, optionsCopy);
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
274 i += frag.childNodes.length - 1;
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
275 elem.replaceChild(frag, childNode);
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
276 } else if (childNode.nodeType === 1) {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
277 (function () {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
278 // Element node
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
279 var className = ' ' + childNode.className + ' ';
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
280 var shouldRender = optionsCopy.ignoredTags.indexOf(childNode.nodeName.toLowerCase()) === -1 && optionsCopy.ignoredClasses.every(function (x) {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
281 return className.indexOf(' ' + x + ' ') === -1;
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
282 });
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
283
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
284 if (shouldRender) {
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
285 renderElem(childNode, optionsCopy);
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
286 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
287 })();
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
288 } // Otherwise, it's something else, and ignore it.
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
289
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
290 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
291 };
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
292
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
293 var renderMathInElement = function renderMathInElement(elem, options) {
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Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
294 if (!elem) {
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
295 throw new Error("No element provided to render");
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
296 }
4a25b534c81c Add v8 engine and include katex
Jonatan Werpers <jonatan@werpers.com>
parents:
diff changeset
297
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298 var optionsCopy = {}; // Object.assign(optionsCopy, option)
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299
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300 for (var option in options) {
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301 if (options.hasOwnProperty(option)) {
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302 optionsCopy[option] = options[option];
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303 }
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304 } // default options
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305
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306
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307 optionsCopy.delimiters = optionsCopy.delimiters || [{
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308 left: "$$",
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309 right: "$$",
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310 display: true
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311 }, {
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312 left: "\\(",
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313 right: "\\)",
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314 display: false
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315 }, // LaTeX uses $…$, but it ruins the display of normal `$` in text:
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316 // {left: "$", right: "$", display: false},
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317 // \[…\] must come last in this array. Otherwise, renderMathInElement
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318 // will search for \[ before it searches for $$ or \(
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319 // That makes it susceptible to finding a \\[0.3em] row delimiter and
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320 // treating it as if it were the start of a KaTeX math zone.
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321 {
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322 left: "\\[",
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323 right: "\\]",
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324 display: true
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325 }];
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326 optionsCopy.ignoredTags = optionsCopy.ignoredTags || ["script", "noscript", "style", "textarea", "pre", "code"];
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327 optionsCopy.ignoredClasses = optionsCopy.ignoredClasses || [];
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328 optionsCopy.errorCallback = optionsCopy.errorCallback || console.error; // Enable sharing of global macros defined via `\gdef` between different
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329 // math elements within a single call to `renderMathInElement`.
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330
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331 optionsCopy.macros = optionsCopy.macros || {};
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332 renderElem(elem, optionsCopy);
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333 };
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334
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335 /* harmony default export */ var auto_render = __webpack_exports__["default"] = (renderMathInElement);
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336
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337 /***/ })
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338 /******/ ])["default"];
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339 });