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jsMath2jax.js

jsMath2jax.js 3.1 KB
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  1. /* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
    2. 

  2. /* vim: set ts=2 et sw=2 tw=80: */
    3. 

  3. 

  4. /*************************************************************
    5. 

  5.  *
    6. 

  6.  *  MathJax/extensions/jsMath2jax.js
    7. 

  7.  *  
    8. 

  8.  *  Implements a jsMath to Jax preprocessor that locates jsMath-style
    9. 

  9.  *  <SPAN CLASS="math">...</SPAN> and <DIV CLASS="math">...</DIV> tags
    10. 

  10.  *  and replaces them with SCRIPT tags for processing by MathJax.
    11. 

  11.  *  (Note: use the tex2jax preprocessor to convert TeX delimiters or 
    12. 

  12.  *  custom delimiters to MathJax SCRIPT tags.  This preprocessor is
    13. 

  13.  *  only for the SPAN and DIV form of jsMath delimiters).
    14. 

  14.  *  
    15. 

  15.  *  To use this preprocessor, include "jsMath2jax.js" in the extensions
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  16.  *  array in your config/MathJax.js file, or the MathJax.Hub.Config() call
    17. 

  17.  *  in your HTML document.
    18. 

  18.  *
    19. 

  19.  *  ---------------------------------------------------------------------
    20. 

  20.  *  
    21. 

  21.  *  Copyright (c) 2010-2013 The MathJax Consortium
    22. 

  22.  * 
    23. 

  23.  *  Licensed under the Apache License, Version 2.0 (the "License");
    24. 

  24.  *  you may not use this file except in compliance with the License.
    25. 

  25.  *  You may obtain a copy of the License at
    26. 

  26.  * 
    27. 

  27.  *      http://www.apache.org/licenses/LICENSE-2.0
    28. 

  28.  * 
    29. 

  29.  *  Unless required by applicable law or agreed to in writing, software
    30. 

  30.  *  distributed under the License is distributed on an "AS IS" BASIS,
    31. 

  31.  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    32. 

  32.  *  See the License for the specific language governing permissions and
    33. 

  33.  *  limitations under the License.
    34. 

  34.  */MathJax.Extension.jsMath2jax={version:"2.2",config:{preview:"TeX"},PreProcess:function(a){this.configured||(this.config=MathJax.Hub.CombineConfig("jsMath2jax",this.config),this.config.Augment&&MathJax.Hub.Insert(this,this.config.Augment),"undefined"===typeof this.config.previewTeX||this.config.previewTeX||(this.config.preview="none"),this.previewClass=MathJax.Hub.config.preRemoveClass,this.configured=!0);"string"===typeof a&&(a=document.getElementById(a));a||(a=document.body);var c=a.getElementsByTagName("span"),b;for(b=c.length-1;0<=b;b--)String(c[b].className).match(/(^| )math( |$)/)&&this.ConvertMath(c[b],"");a=a.getElementsByTagName("div");for(b=a.length-1;0<=b;b--)String(a[b].className).match(/(^| )math( |$)/)&&this.ConvertMath(a[b],"; mode\x3ddisplay")},ConvertMath:function(a,c){if(0===a.getElementsByTagName("script").length){var b=a.parentNode,d=this.createMathTag(c,a.innerHTML);a.nextSibling?b.insertBefore(d,a.nextSibling):b.appendChild(d);"none"!==this.config.preview&&this.createPreview(a);b.removeChild(a)}},createPreview:function(a){var c=this.config.preview;"TeX"===c&&(c=[this.filterPreview(a.innerHTML)]);c&&(c=MathJax.HTML.Element("span",{className:MathJax.Hub.config.preRemoveClass},c),a.parentNode.insertBefore(c,a))},createMathTag:function(a,c){c=c.replace(/&lt;/g,"\x3c").replace(/&gt;/g,"\x3e").replace(/&amp;/g,"\x26");var b=document.createElement("script");b.type="math/tex"+a;MathJax.HTML.setScript(b,c);return b},filterPreview:function(a){return a}};MathJax.Hub.Register.PreProcessor(["PreProcess",MathJax.Extension.jsMath2jax],8);MathJax.Ajax.loadComplete("[MathJax]/extensions/jsMath2jax.js");
    35.