wp-includes/js/twemoji.js

   1 /*jslint indent: 2, browser: true, bitwise: true, plusplus: true */
   2 var twemoji = (function (
   3   /*! Copyright Twitter Inc. and other contributors. Licensed under MIT *//*
   4     https://github.com/twitter/twemoji/blob/gh-pages/LICENSE
   5   */
   6
   7   // WARNING:   this file is generated automatically via
   8   //            `node twemoji-generator.js`
   9   //            please update its `createTwemoji` function
  10   //            at the bottom of the same file instead.
  11
  12 ) {
  13   'use strict';
  14
  15   /*jshint maxparams:4 */
  16
  17   var
  18     // the exported module object
  19     twemoji = {
  20
  21
  22     /////////////////////////
  23     //      properties     //
  24     /////////////////////////
  25
  26       // default assets url, by default will be Twitter Inc. CDN
  27       base: (location.protocol === 'https:' ? 'https:' : 'http:') +
  28             '//twemoji.maxcdn.com/',
  29
  30       // default assets file extensions, by default '.png'
  31       ext: '.png',
  32
  33       // default assets/folder size, by default "36x36"
  34       // available via Twitter CDN: 16, 36, 72
  35       size: '36x36',
  36
  37       // default class name, by default 'emoji'
  38       className: 'emoji',
  39
  40       // basic utilities / helpers to convert code points
  41       // to JavaScript surrogates and vice versa
  42       convert: {
  43
  44         /**
  45          * Given an HEX codepoint, returns UTF16 surrogate pairs.
  46          *
  47          * @param   string  generic codepoint, i.e. '1F4A9'
  48          * @return  string  codepoint transformed into utf16 surrogates pair,
  49          *          i.e. \uD83D\uDCA9
  50          *
  51          * @example
  52          *  twemoji.convert.fromCodePoint('1f1e8');
  53          *  // "\ud83c\udde8"
  54          *
  55          *  '1f1e8-1f1f3'.split('-').map(twemoji.convert.fromCodePoint).join('')
  56          *  // "\ud83c\udde8\ud83c\uddf3"
  57          */
  58         fromCodePoint: fromCodePoint,
  59
  60         /**
  61          * Given UTF16 surrogate pairs, returns the equivalent HEX codepoint.
  62          *
  63          * @param   string  generic utf16 surrogates pair, i.e. \uD83D\uDCA9
  64          * @param   string  optional separator for double code points, default='-'
  65          * @return  string  utf16 transformed into codepoint, i.e. '1F4A9'
  66          *
  67          * @example
  68          *  twemoji.convert.toCodePoint('\ud83c\udde8\ud83c\uddf3');
  69          *  // "1f1e8-1f1f3"
  70          *
  71          *  twemoji.convert.toCodePoint('\ud83c\udde8\ud83c\uddf3', '~');
  72          *  // "1f1e8~1f1f3"
  73          */
  74         toCodePoint: toCodePoint
  75       },
  76
  77
  78     /////////////////////////
  79     //       methods       //
  80     /////////////////////////
  81
  82       /**
  83        * User first: used to remove missing images
  84        * preserving the original text intent when
  85        * a fallback for network problems is desired.
  86        * Automatically added to Image nodes via DOM
  87        * It could be recycled for string operations via:
  88        *  $('img.emoji').on('error', twemoji.onerror)
  89        */
  90       onerror: function onerror() {
  91         if (this.parentNode) {
  92           this.parentNode.replaceChild(createText(this.alt), this);
  93         }
  94       },
  95
  96       /**
  97        * Main method/logic to generate either <img> tags or HTMLImage nodes.
  98        *  "emojify" a generic text or DOM Element.
  99        *
 100        * @overloads
 101        *
 102        * String replacement for `innerHTML` or server side operations
 103        *  twemoji.parse(string);
 104        *  twemoji.parse(string, Function);
 105        *  twemoji.parse(string, Object);
 106        *
 107        * HTMLElement tree parsing for safer operations over existing DOM
 108        *  twemoji.parse(HTMLElement);
 109        *  twemoji.parse(HTMLElement, Function);
 110        *  twemoji.parse(HTMLElement, Object);
 111        *
 112        * @param   string|HTMLElement  the source to parse and enrich with emoji.
 113        *
 114        *          string              replace emoji matches with <img> tags.
 115        *                              Mainly used to inject emoji via `innerHTML`
 116        *                              It does **not** parse the string or validate it,
 117        *                              it simply replaces found emoji with a tag.
 118        *                              NOTE: be sure this won't affect security.
 119        *
 120        *          HTMLElement         walk through the DOM tree and find emoji
 121        *                              that are inside **text node only** (nodeType === 3)
 122        *                              Mainly used to put emoji in already generated DOM
 123        *                              without compromising surrounding nodes and
 124        *                              **avoiding** the usage of `innerHTML`.
 125        *                              NOTE: Using DOM elements instead of strings should
 126        *                              improve security without compromising too much
 127        *                              performance compared with a less safe `innerHTML`.
 128        *
 129        * @param   Function|Object  [optional]
 130        *                              either the callback that will be invoked or an object
 131        *                              with all properties to use per each found emoji.
 132        *
 133        *          Function            if specified, this will be invoked per each emoji
 134        *                              that has been found through the RegExp except
 135        *                              those follwed by the invariant \uFE0E ("as text").
 136        *                              Once invoked, parameters will be:
 137        *
 138        *                                codePoint:string  the lower case HEX code point
 139        *                                                  i.e. "1f4a9"
 140        *
 141        *                                options:Object    all info for this parsing operation
 142        *
 143        *                                variant:char      the optional \uFE0F ("as image")
 144        *                                                  variant, in case this info
 145        *                                                  is anyhow meaningful.
 146        *                                                  By default this is ignored.
 147        *
 148        *                              If such callback will return a falsy value instead
 149        *                              of a valid `src` to use for the image, nothing will
 150        *                              actually change for that specific emoji.
 151        *
 152        *
 153        *          Object              if specified, an object containing the following properties
 154        *
 155        *            callback   Function  the callback to invoke per each found emoji.
 156        *            base       string    the base url, by default twemoji.base
 157        *            ext        string    the image extension, by default twemoji.ext
 158        *            size       string    the assets size, by default twemoji.size
 159        *
 160        * @example
 161        *
 162        *  twemoji.parse("I \u2764\uFE0F emoji!");
 163        *  // I <img class="emoji" draggable="false" alt="❤️" src="/assets/2764.gif"> emoji!
 164        *
 165        *
 166        *  twemoji.parse("I \u2764\uFE0F emoji!", function(icon, options, variant) {
 167        *    return '/assets/' + icon + '.gif';
 168        *  });
 169        *  // I <img class="emoji" draggable="false" alt="❤️" src="/assets/2764.gif"> emoji!
 170        *
 171        *
 172        * twemoji.parse("I \u2764\uFE0F emoji!", {
 173        *   size: 72,
 174        *   callback: function(icon, options, variant) {
 175        *     return '/assets/' + options.size + '/' + icon + options.ext;
 176        *   }
 177        * });
 178        *  // I <img class="emoji" draggable="false" alt="❤️" src="/assets/72x72/2764.png"> emoji!
 179        *
 180        */
 181       parse: parse,
 182
 183       /**
 184        * Given a string, invokes the callback argument
 185        *  per each emoji found in such string.
 186        * This is the most raw version used by
 187        *  the .parse(string) method itself.
 188        *
 189        * @param   string    generic string to parse
 190        * @param   Function  a generic callback that will be
 191        *                    invoked to replace the content.
 192        *                    This calback wil receive standard
 193        *                    String.prototype.replace(str, callback)
 194        *                    arguments such:
 195        *  callback(
 196        *    match,  // the emoji match
 197        *    icon,   // the emoji text (same as text)
 198        *    variant // either '\uFE0E' or '\uFE0F', if present
 199        *  );
 200        *
 201        *                    and others commonly received via replace.
 202        *
 203        *  NOTE: When the variant \uFE0E is found, remember this is an explicit intent
 204        *  from the user: the emoji should **not** be replaced with an image.
 205        *  In \uFE0F case one, it's the opposite, it should be graphic.
 206        *  This utility convetion is that only \uFE0E are not translated into images.
 207        */
 208       replace: replace,
 209
 210       /**
 211        * Simplify string tests against emoji.
 212        *
 213        * @param   string  some text that might contain emoji
 214        * @return  boolean true if any emoji was found, false otherwise.
 215        *
 216        * @example
 217        *
 218        *  if (twemoji.test(someContent)) {
 219        *    console.log("emoji All The Things!");
 220        *  }
 221        */
 222       test: test
 223     },
 224
 225     // RegExp based on emoji's official Unicode standards
 226     // http://www.unicode.org/Public/UNIDATA/EmojiSources.txt
 227     re = /((?:\ud83c\udde8\ud83c\uddf3|\ud83c\uddfa\ud83c\uddf8|\ud83c\uddf7\ud83c\uddfa|\ud83c\uddf0\ud83c\uddf7|\ud83c\uddef\ud83c\uddf5|\ud83c\uddee\ud83c\uddf9|\ud83c\uddec\ud83c\udde7|\ud83c\uddeb\ud83c\uddf7|\ud83c\uddea\ud83c\uddf8|\ud83c\udde9\ud83c\uddea|\u0039\ufe0f?\u20e3|\u0038\ufe0f?\u20e3|\u0037\ufe0f?\u20e3|\u0036\ufe0f?\u20e3|\u0035\ufe0f?\u20e3|\u0034\ufe0f?\u20e3|\u0033\ufe0f?\u20e3|\u0032\ufe0f?\u20e3|\u0031\ufe0f?\u20e3|\u0030\ufe0f?\u20e3|\u0023\ufe0f?\u20e3|\ud83d\udeb3|\ud83d\udeb1|\ud83d\udeb0|\ud83d\udeaf|\ud83d\udeae|\ud83d\udea6|\ud83d\udea3|\ud83d\udea1|\ud83d\udea0|\ud83d\ude9f|\ud83d\ude9e|\ud83d\ude9d|\ud83d\ude9c|\ud83d\ude9b|\ud83d\ude98|\ud83d\ude96|\ud83d\ude94|\ud83d\ude90|\ud83d\ude8e|\ud83d\ude8d|\ud83d\ude8b|\ud83d\ude8a|\ud83d\ude88|\ud83d\ude86|\ud83d\ude82|\ud83d\ude81|\ud83d\ude36|\ud83d\ude34|\ud83d\ude2f|\ud83d\ude2e|\ud83d\ude2c|\ud83d\ude27|\ud83d\ude26|\ud83d\ude1f|\ud83d\ude1b|\ud83d\ude19|\ud83d\ude17|\ud83d\ude15|\ud83d\ude11|\ud83d\ude10|\ud83d\ude0e|\ud83d\ude08|\ud83d\ude07|\ud83d\ude00|\ud83d\udd67|\ud83d\udd66|\ud83d\udd65|\ud83d\udd64|\ud83d\udd63|\ud83d\udd62|\ud83d\udd61|\ud83d\udd60|\ud83d\udd5f|\ud83d\udd5e|\ud83d\udd5d|\ud83d\udd5c|\ud83d\udd2d|\ud83d\udd2c|\ud83d\udd15|\ud83d\udd09|\ud83d\udd08|\ud83d\udd07|\ud83d\udd06|\ud83d\udd05|\ud83d\udd04|\ud83d\udd02|\ud83d\udd01|\ud83d\udd00|\ud83d\udcf5|\ud83d\udcef|\ud83d\udced|\ud83d\udcec|\ud83d\udcb7|\ud83d\udcb6|\ud83d\udcad|\ud83d\udc6d|\ud83d\udc6c|\ud83d\udc65|\ud83d\udc2a|\ud83d\udc16|\ud83d\udc15|\ud83d\udc13|\ud83d\udc10|\ud83d\udc0f|\ud83d\udc0b|\ud83d\udc0a|\ud83d\udc09|\ud83d\udc08|\ud83d\udc07|\ud83d\udc06|\ud83d\udc05|\ud83d\udc04|\ud83d\udc03|\ud83d\udc02|\ud83d\udc01|\ud83d\udc00|\ud83c\udfe4|\ud83c\udfc9|\ud83c\udfc7|\ud83c\udf7c|\ud83c\udf50|\ud83c\udf4b|\ud83c\udf33|\ud83c\udf32|\ud83c\udf1e|\ud83c\udf1d|\ud83c\udf1c|\ud83c\udf1a|\ud83c\udf18|\ud83c\udccf|\ud83c\udd70|\ud83c\udd71|\ud83c\udd7e|\ud83c\udd8e|\ud83c\udd91|\ud83c\udd92|\ud83c\udd93|\ud83c\udd94|\ud83c\udd95|\ud83c\udd96|\ud83c\udd97|\ud83c\udd98|\ud83c\udd99|\ud83c\udd9a|\ud83d\udc77|\ud83d\udec5|\ud83d\udec4|\ud83d\udec3|\ud83d\udec2|\ud83d\udec1|\ud83d\udebf|\ud83d\udeb8|\ud83d\udeb7|\ud83d\udeb5|\ud83c\ude01|\ud83c\ude02|\ud83c\ude32|\ud83c\ude33|\ud83c\ude34|\ud83c\ude35|\ud83c\ude36|\ud83c\ude37|\ud83c\ude38|\ud83c\ude39|\ud83c\ude3a|\ud83c\ude50|\ud83c\ude51|\ud83c\udf00|\ud83c\udf01|\ud83c\udf02|\ud83c\udf03|\ud83c\udf04|\ud83c\udf05|\ud83c\udf06|\ud83c\udf07|\ud83c\udf08|\ud83c\udf09|\ud83c\udf0a|\ud83c\udf0b|\ud83c\udf0c|\ud83c\udf0f|\ud83c\udf11|\ud83c\udf13|\ud83c\udf14|\ud83c\udf15|\ud83c\udf19|\ud83c\udf1b|\ud83c\udf1f|\ud83c\udf20|\ud83c\udf30|\ud83c\udf31|\ud83c\udf34|\ud83c\udf35|\ud83c\udf37|\ud83c\udf38|\ud83c\udf39|\ud83c\udf3a|\ud83c\udf3b|\ud83c\udf3c|\ud83c\udf3d|\ud83c\udf3e|\ud83c\udf3f|\ud83c\udf40|\ud83c\udf41|\ud83c\udf42|\ud83c\udf43|\ud83c\udf44|\ud83c\udf45|\ud83c\udf46|\ud83c\udf47|\ud83c\udf48|\ud83c\udf49|\ud83c\udf4a|\ud83c\udf4c|\ud83c\udf4d|\ud83c\udf4e|\ud83c\udf4f|\ud83c\udf51|\ud83c\udf52|\ud83c\udf53|\ud83c\udf54|\ud83c\udf55|\ud83c\udf56|\ud83c\udf57|\ud83c\udf58|\ud83c\udf59|\ud83c\udf5a|\ud83c\udf5b|\ud83c\udf5c|\ud83c\udf5d|\ud83c\udf5e|\ud83c\udf5f|\ud83c\udf60|\ud83c\udf61|\ud83c\udf62|\ud83c\udf63|\ud83c\udf64|\ud83c\udf65|\ud83c\udf66|\ud83c\udf67|\ud83c\udf68|\ud83c\udf69|\ud83c\udf6a|\ud83c\udf6b|\ud83c\udf6c|\ud83c\udf6d|\ud83c\udf6e|\ud83c\udf6f|\ud83c\udf70|\ud83c\udf71|\ud83c\udf72|\ud83c\udf73|\ud83c\udf74|\ud83c\udf75|\ud83c\udf76|\ud83c\udf77|\ud83c\udf78|\ud83c\udf79|\ud83c\udf7a|\ud83c\udf7b|\ud83c\udf80|\ud83c\udf81|\ud83c\udf82|\ud83c\udf83|\ud83c\udf84|\ud83c\udf85|\ud83c\udf86|\ud83c\udf87|\ud83c\udf88|\ud83c\udf89|\ud83c\udf8a|\ud83c\udf8b|\ud83c\udf8c|\ud83c\udf8d|\ud83c\udf8e|\ud83c\udf8f|\ud83c\udf90|\ud83c\udf91|\ud83c\udf92|\ud83c\udf93|\ud83c\udfa0|\ud83c\udfa1|\ud83c\udfa2|\ud83c\udfa3|\ud83c\udfa4|\ud83c\udfa5|\ud83c\udfa6|\ud83c\udfa7|\ud83c\udfa8|\ud83c\udfa9|\ud83c\udfaa|\ud83c\udfab|\ud83c\udfac|\ud83c\udfad|\ud83c\udfae|\ud83c\udfaf|\ud83c\udfb0|\ud83c\udfb1|\ud83c\udfb2|\ud83c\udfb3|\ud83c\udfb4|\ud83c\udfb5|\ud83c\udfb6|\ud83c\udfb7|\ud83c\udfb8|\ud83c\udfb9|\ud83c\udfba|\ud83c\udfbb|\ud83c\udfbc|\ud83c\udfbd|\ud83c\udfbe|\ud83c\udfbf|\ud83c\udfc0|\ud83c\udfc1|\ud83c\udfc2|\ud83c\udfc3|\ud83c\udfc4|\ud83c\udfc6|\ud83c\udfc8|\ud83c\udfca|\ud83c\udfe0|\ud83c\udfe1|\ud83c\udfe2|\ud83c\udfe3|\ud83c\udfe5|\ud83c\udfe6|\ud83c\udfe7|\ud83c\udfe8|\ud83c\udfe9|\ud83c\udfea|\ud83c\udfeb|\ud83c\udfec|\ud83c\udfed|\ud83c\udfee|\ud83c\udfef|\ud83c\udff0|\ud83d\udc0c|\ud83d\udc0d|\ud83d\udc0e|\ud83d\udc11|\ud83d\udc12|\ud83d\udc14|\ud83d\udc17|\ud83d\udc18|\ud83d\udc19|\ud83d\udc1a|\ud83d\udc1b|\ud83d\udc1c|\ud83d\udc1d|\ud83d\udc1e|\ud83d\udc1f|\ud83d\udc20|\ud83d\udc21|\ud83d\udc22|\ud83d\udc23|\ud83d\udc24|\ud83d\udc25|\ud83d\udc26|\ud83d\udc27|\ud83d\udc28|\ud83d\udc29|\ud83d\udc2b|\ud83d\udc2c|\ud83d\udc2d|\ud83d\udc2e|\ud83d\udc2f|\ud83d\udc30|\ud83d\udc31|\ud83d\udc32|\ud83d\udc33|\ud83d\udc34|\ud83d\udc35|\ud83d\udc36|\ud83d\udc37|\ud83d\udc38|\ud83d\udc39|\ud83d\udc3a|\ud83d\udc3b|\ud83d\udc3c|\ud83d\udc3d|\ud83d\udc3e|\ud83d\udc40|\ud83d\udc42|\ud83d\udc43|\ud83d\udc44|\ud83d\udc45|\ud83d\udc46|\ud83d\udc47|\ud83d\udc48|\ud83d\udc49|\ud83d\udc4a|\ud83d\udc4b|\ud83d\udc4c|\ud83d\udc4d|\ud83d\udc4e|\ud83d\udc4f|\ud83d\udc50|\ud83d\udc51|\ud83d\udc52|\ud83d\udc53|\ud83d\udc54|\ud83d\udc55|\ud83d\udc56|\ud83d\udc57|\ud83d\udc58|\ud83d\udc59|\ud83d\udc5a|\ud83d\udc5b|\ud83d\udc5c|\ud83d\udc5d|\ud83d\udc5e|\ud83d\udc5f|\ud83d\udc60|\ud83d\udc61|\ud83d\udc62|\ud83d\udc63|\ud83d\udc64|\ud83d\udc66|\ud83d\udc67|\ud83d\udc68|\ud83d\udc69|\ud83d\udc6a|\ud83d\udc6b|\ud83d\udc6e|\ud83d\udc6f|\ud83d\udc70|\ud83d\udc71|\ud83d\udc72|\ud83d\udc73|\ud83d\udc74|\ud83d\udc75|\ud83d\udc76|\ud83d\udeb4|\ud83d\udc78|\ud83d\udc79|\ud83d\udc7a|\ud83d\udc7b|\ud83d\udc7c|\ud83d\udc7d|\ud83d\udc7e|\ud83d\udc7f|\ud83d\udc80|\ud83d\udc81|\ud83d\udc82|\ud83d\udc83|\ud83d\udc84|\ud83d\udc85|\ud83d\udc86|\ud83d\udc87|\ud83d\udc88|\ud83d\udc89|\ud83d\udc8a|\ud83d\udc8b|\ud83d\udc8c|\ud83d\udc8d|\ud83d\udc8e|\ud83d\udc8f|\ud83d\udc90|\ud83d\udc91|\ud83d\udc92|\ud83d\udc93|\ud83d\udc94|\ud83d\udc95|\ud83d\udc96|\ud83d\udc97|\ud83d\udc98|\ud83d\udc99|\ud83d\udc9a|\ud83d\udc9b|\ud83d\udc9c|\ud83d\udc9d|\ud83d\udc9e|\ud83d\udc9f|\ud83d\udca0|\ud83d\udca1|\ud83d\udca2|\ud83d\udca3|\ud83d\udca4|\ud83d\udca5|\ud83d\udca6|\ud83d\udca7|\ud83d\udca8|\ud83d\udca9|\ud83d\udcaa|\ud83d\udcab|\ud83d\udcac|\ud83d\udcae|\ud83d\udcaf|\ud83d\udcb0|\ud83d\udcb1|\ud83d\udcb2|\ud83d\udcb3|\ud83d\udcb4|\ud83d\udcb5|\ud83d\udcb8|\ud83d\udcb9|\ud83d\udcba|\ud83d\udcbb|\ud83d\udcbc|\ud83d\udcbd|\ud83d\udcbe|\ud83d\udcbf|\ud83d\udcc0|\ud83d\udcc1|\ud83d\udcc2|\ud83d\udcc3|\ud83d\udcc4|\ud83d\udcc5|\ud83d\udcc6|\ud83d\udcc7|\ud83d\udcc8|\ud83d\udcc9|\ud83d\udcca|\ud83d\udccb|\ud83d\udccc|\ud83d\udccd|\ud83d\udcce|\ud83d\udccf|\ud83d\udcd0|\ud83d\udcd1|\ud83d\udcd2|\ud83d\udcd3|\ud83d\udcd4|\ud83d\udcd5|\ud83d\udcd6|\ud83d\udcd7|\ud83d\udcd8|\ud83d\udcd9|\ud83d\udcda|\ud83d\udcdb|\ud83d\udcdc|\ud83d\udcdd|\ud83d\udcde|\ud83d\udcdf|\ud83d\udce0|\ud83d\udce1|\ud83d\udce2|\ud83d\udce3|\ud83d\udce4|\ud83d\udce5|\ud83d\udce6|\ud83d\udce7|\ud83d\udce8|\ud83d\udce9|\ud83d\udcea|\ud83d\udceb|\ud83d\udcee|\ud83d\udcf0|\ud83d\udcf1|\ud83d\udcf2|\ud83d\udcf3|\ud83d\udcf4|\ud83d\udcf6|\ud83d\udcf7|\ud83d\udcf9|\ud83d\udcfa|\ud83d\udcfb|\ud83d\udcfc|\ud83d\udd03|\ud83d\udd0a|\ud83d\udd0b|\ud83d\udd0c|\ud83d\udd0d|\ud83d\udd0e|\ud83d\udd0f|\ud83d\udd10|\ud83d\udd11|\ud83d\udd12|\ud83d\udd13|\ud83d\udd14|\ud83d\udd16|\ud83d\udd17|\ud83d\udd18|\ud83d\udd19|\ud83d\udd1a|\ud83d\udd1b|\ud83d\udd1c|\ud83d\udd1d|\ud83d\udd1e|\ud83d\udd1f|\ud83d\udd20|\ud83d\udd21|\ud83d\udd22|\ud83d\udd23|\ud83d\udd24|\ud83d\udd25|\ud83d\udd26|\ud83d\udd27|\ud83d\udd28|\ud83d\udd29|\ud83d\udd2a|\ud83d\udd2b|\ud83d\udd2e|\ud83d\udd2f|\ud83d\udd30|\ud83d\udd31|\ud83d\udd32|\ud83d\udd33|\ud83d\udd34|\ud83d\udd35|\ud83d\udd36|\ud83d\udd37|\ud83d\udd38|\ud83d\udd39|\ud83d\udd3a|\ud83d\udd3b|\ud83d\udd3c|\ud83d\udd3d|\ud83d\udd50|\ud83d\udd51|\ud83d\udd52|\ud83d\udd53|\ud83d\udd54|\ud83d\udd55|\ud83d\udd56|\ud83d\udd57|\ud83d\udd58|\ud83d\udd59|\ud83d\udd5a|\ud83d\udd5b|\ud83d\uddfb|\ud83d\uddfc|\ud83d\uddfd|\ud83d\uddfe|\ud83d\uddff|\ud83d\ude01|\ud83d\ude02|\ud83d\ude03|\ud83d\ude04|\ud83d\ude05|\ud83d\ude06|\ud83d\ude09|\ud83d\ude0a|\ud83d\ude0b|\ud83d\ude0c|\ud83d\ude0d|\ud83d\ude0f|\ud83d\ude12|\ud83d\ude13|\ud83d\ude14|\ud83d\ude16|\ud83d\ude18|\ud83d\ude1a|\ud83d\ude1c|\ud83d\ude1d|\ud83d\ude1e|\ud83d\ude20|\ud83d\ude21|\ud83d\ude22|\ud83d\ude23|\ud83d\ude24|\ud83d\ude25|\ud83d\ude28|\ud83d\ude29|\ud83d\ude2a|\ud83d\ude2b|\ud83d\ude2d|\ud83d\ude30|\ud83d\ude31|\ud83d\ude32|\ud83d\ude33|\ud83d\ude35|\ud83d\ude37|\ud83d\ude38|\ud83d\ude39|\ud83d\ude3a|\ud83d\ude3b|\ud83d\ude3c|\ud83d\ude3d|\ud83d\ude3e|\ud83d\ude3f|\ud83d\ude40|\ud83d\ude45|\ud83d\ude46|\ud83d\ude47|\ud83d\ude48|\ud83d\ude49|\ud83d\ude4a|\ud83d\ude4b|\ud83d\ude4c|\ud83d\ude4d|\ud83d\ude4e|\ud83d\ude4f|\ud83d\ude80|\ud83d\ude83|\ud83d\ude84|\ud83d\ude85|\ud83d\ude87|\ud83d\ude89|\ud83d\ude8c|\ud83d\ude8f|\ud83d\ude91|\ud83d\ude92|\ud83d\ude93|\ud83d\ude95|\ud83d\ude97|\ud83d\ude99|\ud83d\ude9a|\ud83d\udea2|\ud83d\udea4|\ud83d\udea5|\ud83d\udea7|\ud83d\udea8|\ud83d\udea9|\ud83d\udeaa|\ud83d\udeab|\ud83d\udeac|\ud83d\udead|\ud83d\udeb2|\ud83d\udeb6|\ud83d\udeb9|\ud83d\udeba|\ud83d\udebb|\ud83d\udebc|\ud83d\udebd|\ud83d\udebe|\ud83d\udec0|\ud83c\udde6|\ud83c\udde7|\ud83c\udde8|\ud83c\udde9|\ud83c\uddea|\ud83c\uddeb|\ud83c\uddec|\ud83c\udded|\ud83c\uddee|\ud83c\uddef|\ud83c\uddf0|\ud83c\uddf1|\ud83c\uddf2|\ud83c\uddf3|\ud83c\uddf4|\ud83c\uddf5|\ud83c\uddf6|\ud83c\uddf7|\ud83c\uddf8|\ud83c\uddf9|\ud83c\uddfa|\ud83c\uddfb|\ud83c\uddfc|\ud83c\uddfd|\ud83c\uddfe|\ud83c\uddff|\ud83c\udf0d|\ud83c\udf0e|\ud83c\udf10|\ud83c\udf12|\ud83c\udf16|\ud83c\udf17|\ue50a|\u3030|\u27b0|\u2797|\u2796|\u2795|\u2755|\u2754|\u2753|\u274e|\u274c|\u2728|\u270b|\u270a|\u2705|\u26ce|\u23f3|\u23f0|\u23ec|\u23eb|\u23ea|\u23e9|\u2122|\u27bf|\u00a9|\u00ae)|(?:(?:\ud83c\udc04|\ud83c\udd7f|\ud83c\ude1a|\ud83c\ude2f|\u3299|\u303d|\u2b55|\u2b50|\u2b1c|\u2b1b|\u2b07|\u2b06|\u2b05|\u2935|\u2934|\u27a1|\u2764|\u2757|\u2747|\u2744|\u2734|\u2733|\u2716|\u2714|\u2712|\u270f|\u270c|\u2709|\u2708|\u2702|\u26fd|\u26fa|\u26f5|\u26f3|\u26f2|\u26ea|\u26d4|\u26c5|\u26c4|\u26be|\u26bd|\u26ab|\u26aa|\u26a1|\u26a0|\u2693|\u267f|\u267b|\u3297|\u2666|\u2665|\u2663|\u2660|\u2653|\u2652|\u2651|\u2650|\u264f|\u264e|\u264d|\u264c|\u264b|\u264a|\u2649|\u2648|\u263a|\u261d|\u2615|\u2614|\u2611|\u260e|\u2601|\u2600|\u25fe|\u25fd|\u25fc|\u25fb|\u25c0|\u25b6|\u25ab|\u25aa|\u24c2|\u231b|\u231a|\u21aa|\u21a9|\u2199|\u2198|\u2197|\u2196|\u2195|\u2194|\u2139|\u2049|\u203c|\u2668)([\uFE0E\uFE0F]?)))/g,
 228
 229     // nodes with type 1 which should **not** be parsed
 230     shouldntBeParsed = /IFRAME|NOFRAMES|NOSCRIPT|SCRIPT|SELECT|STYLE|TEXTAREA/,
 231
 232     // just a private shortcut
 233     fromCharCode = String.fromCharCode;
 234
 235   return twemoji;
 236
 237
 238   /////////////////////////
 239   //  private functions  //
 240   //     declaration     //
 241   /////////////////////////
 242
 243   /**
 244    * Shortcut to create text nodes
 245    * @param   string  text used to create DOM text node
 246    * @return  Node  a DOM node with that text
 247    */
 248   function createText(text) {
 249     return document.createTextNode(text);
 250   }
 251
 252   /**
 253    * Default callback used to generate emoji src
 254    *  based on Twitter CDN
 255    * @param   string    the emoji codepoint string
 256    * @param   string    the default size to use, i.e. "36x36"
 257    * @param   string    optional "\uFE0F" variant char, ignored by default
 258    * @return  string    the image source to use
 259    */
 260   function defaultImageSrcGenerator(icon, options) {
 261     return ''.concat(options.base, options.size, '/', icon, options.ext);
 262   }
 263
 264   /**
 265    * Given a generic DOM nodeType 1, walk through all children
 266    * and store every nodeType 3 (#text) found in the tree.
 267    * @param   Element a DOM Element with probably some text in it
 268    * @param   Array the list of previously discovered text nodes
 269    * @return  Array same list with new discovered nodes, if any
 270    */
 271   function grabAllTextNodes(node, allText) {
 272     var
 273       childNodes = node.childNodes,
 274       length = childNodes.length,
 275       subnode,
 276       nodeType;
 277     while (length--) {
 278       subnode = childNodes[length];
 279       nodeType = subnode.nodeType;
 280       // parse emoji only in text nodes
 281       if (nodeType === 3) {
 282         // collect them to process emoji later
 283         allText.push(subnode);
 284       }
 285       // ignore all nodes that are not type 1 or that
 286       // should not be parsed as script, style, and others
 287       else if (nodeType === 1 && !shouldntBeParsed.test(subnode.nodeName)) {
 288         grabAllTextNodes(subnode, allText);
 289       }
 290     }
 291     return allText;
 292   }
 293
 294   /**
 295    * Used to both remove the possible variant
 296    *  and to convert utf16 into code points
 297    * @param   string    the emoji surrogate pair
 298    * @param   string    the optional variant char, if any
 299    */
 300   function grabTheRightIcon(icon, variant) {
 301     // if variant is present as \uFE0F
 302     return toCodePoint(
 303       variant === '\uFE0F' ?
 304         // the icon should not contain it
 305         icon.slice(0, -1) :
 306         // fix non standard OSX behavior
 307         (icon.length === 3 && icon.charAt(1) === '\uFE0F' ?
 308           icon.charAt(0) + icon.charAt(2) : icon)
 309     );
 310   }
 311
 312   /**
 313    * DOM version of the same logic / parser:
 314    *  emojify all found sub-text nodes placing images node instead.
 315    * @param   Element   generic DOM node with some text in some child node
 316    * @param   Object    options  containing info about how to parse
 317     *
 318     *            .callback   Function  the callback to invoke per each found emoji.
 319     *            .base       string    the base url, by default twemoji.base
 320     *            .ext        string    the image extension, by default twemoji.ext
 321     *            .size       string    the assets size, by default twemoji.size
 322     *
 323    * @return  Element same generic node with emoji in place, if any.
 324    */
 325   function parseNode(node, options) {
 326     var
 327       allText = grabAllTextNodes(node, []),
 328       length = allText.length,
 329       modified,
 330       fragment,
 331       subnode,
 332       text,
 333       match,
 334       i,
 335       index,
 336       img,
 337       alt,
 338       icon,
 339       variant,
 340       src,
 341       attr;
 342     while (length--) {
 343       modified = false;
 344       fragment = document.createDocumentFragment();
 345       subnode = allText[length];
 346       text = subnode.nodeValue;
 347       i = 0;
 348       while ((match = re.exec(text))) {
 349         index = match.index;
 350         if (index !== i) {
 351           fragment.appendChild(
 352             createText(text.slice(i, index))
 353           );
 354         }
 355         alt = match[0];
 356         icon = match[1];
 357         variant = match[2];
 358         i = index + alt.length;
 359         if (variant !== '\uFE0E') {
 360           src = options.callback(
 361             grabTheRightIcon(icon, variant),
 362             options,
 363             variant
 364           );
 365           if (src) {
 366             img = new Image();
 367
 368                         // Set additional image attributes.
 369             if ( options.imgAttr ) {
 370               for ( attr in options.imgAttr ) {
 371                 img.setAttribute( attr, options.imgAttr[attr] );
 372               }
 373             }
 374
 375             img.onerror = twemoji.onerror;
 376             img.className = options.className;
 377             img.setAttribute('draggable', 'false');
 378             img.alt = alt;
 379             img.src = src;
 380             modified = true;
 381             fragment.appendChild(img);
 382           }
 383         }
 384         if (!img) fragment.appendChild(createText(alt));
 385         img = null;
 386       }
 387       // is there actually anything to replace in here ?
 388       if (modified) {
 389         // any text left to be added ?
 390         if (i < text.length) {
 391           fragment.appendChild(
 392             createText(text.slice(i))
 393           );
 394         }
 395         // replace the text node only, leave intact
 396         // anything else surrounding such text
 397         subnode.parentNode.replaceChild(fragment, subnode);
 398       }
 399     }
 400     return node;
 401   }
 402
 403   /**
 404    * String/HTML version of the same logic / parser:
 405    *  emojify a generic text placing images tags instead of surrogates pair.
 406    * @param   string    generic string with possibly some emoji in it
 407    * @param   Object    options  containing info about how to parse
 408    *
 409    *            .callback   Function  the callback to invoke per each found emoji.
 410    *            .base       string    the base url, by default twemoji.base
 411    *            .ext        string    the image extension, by default twemoji.ext
 412    *            .size       string    the assets size, by default twemoji.size
 413    *
 414    * @return  the string with <img tags> replacing all found and parsed emoji
 415    */
 416   function parseString(str, options) {
 417     return replace(str, function (match, icon, variant) {
 418       var src, attr, attributes = '';
 419       // verify the variant is not the FE0E one
 420       // this variant means "emoji as text" and should not
 421       // require any action/replacement
 422       // http://unicode.org/Public/UNIDATA/StandardizedVariants.html
 423       if (variant !== '\uFE0E') {
 424         src = options.callback(
 425           grabTheRightIcon(icon, variant),
 426           options,
 427           variant
 428         );
 429         if (src) {
 430           // Set additional image attributes.
 431           if ( options.imgAttr ) {
 432             for ( attr in options.imgAttr ) {
 433               if ( ! /draggable|class|alt|src/i.test( attr ) ) {
 434                 attributes += ' '.concat( attr, '="', options.imgAttr[attr], '"' );
 435               }
 436             }
 437           }
 438
 439           // recycle the match string replacing the emoji
 440           // with its image counter part
 441           match = '<img '.concat(
 442             'class="', options.className, '" ',
 443             'draggable="false" ',
 444             // needs to preserve user original intent
 445             // when variants should be copied and pasted too
 446             'alt="',
 447             match,
 448             '" ',
 449             'src="',
 450             src,
 451             '"',
 452             attributes,
 453             '>'
 454           );
 455         }
 456       }
 457       return match;
 458     });
 459   }
 460
 461   /**
 462    * Given a generic value, creates its squared counterpart if it's a number.
 463    *  As example, number 36 will return '36x36'.
 464    * @param   any     a generic value.
 465    * @return  any     a string representing asset size, i.e. "36x36"
 466    *                  only in case the value was a number.
 467    *                  Returns initial value otherwise.
 468    */
 469   function toSizeSquaredAsset(value) {
 470     return typeof value === 'number' ?
 471       value + 'x' + value :
 472       value;
 473   }
 474
 475
 476   /////////////////////////
 477   //  exported functions //
 478   //     declaration     //
 479   /////////////////////////
 480
 481   function fromCodePoint(codepoint) {
 482     var code = typeof codepoint === 'string' ?
 483           parseInt(codepoint, 16) : codepoint;
 484     if (code < 0x10000) {
 485       return fromCharCode(code);
 486     }
 487     code -= 0x10000;
 488     return fromCharCode(
 489       0xD800 + (code >> 10),
 490       0xDC00 + (code & 0x3FF)
 491     );
 492   }
 493
 494   function parse(what, how) {
 495     if (!how || typeof how === 'function') {
 496       how = {callback: how};
 497     }
 498     // if first argument is string, inject html <img> tags
 499     // otherwise use the DOM tree and parse text nodes only
 500     return (typeof what === 'string' ? parseString : parseNode)(what, {
 501       callback: how.callback || defaultImageSrcGenerator,
 502       base:     typeof how.base === 'string' ? how.base : twemoji.base,
 503       ext:      how.ext || twemoji.ext,
 504       size:     how.folder || toSizeSquaredAsset(how.size || twemoji.size),
 505       className:how.className || twemoji.className,
 506       imgAttr:  how.imgAttr
 507     });
 508   }
 509
 510   function replace(text, callback) {
 511     return String(text).replace(re, callback);
 512   }
 513
 514   function test(text) {
 515     // IE6 needs a reset before too
 516     re.lastIndex = 0;
 517     var result = re.test(text);
 518     re.lastIndex = 0;
 519     return result;
 520   }
 521
 522   function toCodePoint(unicodeSurrogates, sep) {
 523     var
 524       r = [],
 525       c = 0,
 526       p = 0,
 527       i = 0;
 528     while (i < unicodeSurrogates.length) {
 529       c = unicodeSurrogates.charCodeAt(i++);
 530       if (p) {
 531         r.push((0x10000 + ((p - 0xD800) << 10) + (c - 0xDC00)).toString(16));
 532         p = 0;
 533       } else if (0xD800 <= c && c <= 0xDBFF) {
 534         p = c;
 535       } else {
 536         r.push(c.toString(16));
 537       }
 538     }
 539     return r.join(sep || '-');
 540   }
 541
 542 }());