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unicode.js

unicode.js 4.7 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/TeX/unicode.js
    7. 

  7.  *  
    8. 

  8.  *  Implements the \unicode extension to TeX to allow arbitrary unicode
    9. 

  9.  *  code points to be entered into the TeX file.  You can specify
    10. 

  10.  *  the height and depth of the character (the width is determined by
    11. 

  11.  *  the browser), and the default font from which to take the character.
    12. 

  12.  *  
    13. 

  13.  *  Examples:
    14. 

  14.  *      \unicode{65}                        % the character 'A'
    15. 

  15.  *      \unicode{x41}                       % the character 'A'
    16. 

  16.  *      \unicode[.55,0.05]{x22D6}           % less-than with dot, with height .55 and depth 0.05
    17. 

  17.  *      \unicode[.55,0.05][Geramond]{x22D6} % same taken from Geramond font
    18. 

  18.  *      \unicode[Garamond]{x22D6}           % same, but with default height, depth of .8,.2
    19. 

  19.  *
    20. 

  20.  *  Once a size and font are provided for a given code point, they need
    21. 

  21.  *  not be specified again in subsequent \unicode calls for that character.
    22. 

  22.  *  Note that a font list can be given, but Internet Explorer has a buggy
    23. 

  23.  *  implementation of font-family where it only looks in the first
    24. 

  24.  *  available font and if the glyph is not in that, it does not look at
    25. 

  25.  *  later fonts, but goes directly to the default font as set in the
    26. 

  26.  *  Internet-Options/Font panel.  For this reason, the default font list is
    27. 

  27.  *  "STIXGeneral,'Arial Unicode MS'", so if the user has STIX fonts, the
    28. 

  28.  *  symbol will be taken from that (almost all the symbols are in
    29. 

  29.  *  STIXGeneral), otherwise Arial Unicode MS is tried.
    30. 

  30.  *  
    31. 

  31.  *  To configure the default font list, use
    32. 

  32.  *  
    33. 

  33.  *      MathJax.Hub.Config({
    34. 

  34.  *        TeX: {
    35. 

  35.  *          unicode: {
    36. 

  36.  *            fonts: "STIXGeneral,'Arial Unicode MS'"
    37. 

  37.  *          }
    38. 

  38.  *        }
    39. 

  39.  *      });
    40. 

  40.  *
    41. 

  41.  *  The result of \unicode will have TeX class ORD (i.e., it will act like a
    42. 

  42.  *  variable).  Use \mathbin, \mathrel, etc, to specify a different class.
    43. 

  43.  *  
    44. 

  44.  *  ---------------------------------------------------------------------
    45. 

  45.  *  
    46. 

  46.  *  Copyright (c) 2009-2013 The MathJax Consortium
    47. 

  47.  * 
    48. 

  48.  *  Licensed under the Apache License, Version 2.0 (the "License");
    49. 

  49.  *  you may not use this file except in compliance with the License.
    50. 

  50.  *  You may obtain a copy of the License at
    51. 

  51.  * 
    52. 

  52.  *      http://www.apache.org/licenses/LICENSE-2.0
    53. 

  53.  * 
    54. 

  54.  *  Unless required by applicable law or agreed to in writing, software
    55. 

  55.  *  distributed under the License is distributed on an "AS IS" BASIS,
    56. 

  56.  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    57. 

  57.  *  See the License for the specific language governing permissions and
    58. 

  58.  *  limitations under the License.
    59. 

  59.  */MathJax.Extension["TeX/unicode"]={version:"2.2",unicode:{},config:MathJax.Hub.CombineConfig("TeX.unicode",{fonts:"STIXGeneral,'Arial Unicode MS'"})};MathJax.Hub.Register.StartupHook("TeX Jax Ready",function(){var c=MathJax.InputJax.TeX,e=MathJax.ElementJax.mml,d=MathJax.Extension["TeX/unicode"].unicode;c.Definitions.Add({macros:{unicode:"Unicode"}},null,!0);c.Parse.Augment({Unicode:function(a){var b=this.GetBrackets(a),c;b&&(b.replace(/ /g,"").match(/^(\d+(\.\d*)?|\.\d+),(\d+(\.\d*)?|\.\d+)$/)?(b=b.replace(/ /g,"").split(/,/),c=this.GetBrackets(a)):(c=b,b=null));a=this.trimSpaces(this.GetArgument(a));var f=parseInt(a.match(/^x/)?"0"+a:a);d[f]?c||(c=d[f][2]):d[f]=[800,200,c,f];b&&(d[f][0]=Math.floor(1E3*b[0]),d[f][1]=Math.floor(1E3*b[1]));var b=this.stack.env.font,g={};c?(d[f][2]=g.fontfamily=c.replace(/"/g,"'"),b&&(b.match(/bold/)&&(g.fontweight="bold"),b.match(/italic|-mathit/)&&(g.fontstyle="italic"))):b&&(g.mathvariant=b);g.unicode=[].concat(d[f]);this.Push(e.mtext(e.entity("#"+a)).With(g))}});MathJax.Hub.Startup.signal.Post("TeX unicode Ready")});MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready",function(){var c=MathJax.ElementJax.mml,e=MathJax.Extension["TeX/unicode"].config.fonts,d=c.mbase.prototype.HTMLgetVariant;c.mbase.Augment({HTMLgetVariant:function(){var a=d.call(this);a.unicode&&(delete a.unicode,delete a.FONTS);if(!this.unicode)return a;a.unicode=!0;a.defaultFont||(a=MathJax.Hub.Insert({},a),a.defaultFont={family:e});var b=this.unicode[2],b=b?b+(","+e):e;a.defaultFont[this.unicode[3]]=[this.unicode[0],this.unicode[1],500,0,500,{isUnknown:!0,isUnicode:!0,font:b}];return a}})});MathJax.Hub.Register.StartupHook("SVG Jax Ready",function(){var c=MathJax.ElementJax.mml,e=MathJax.Extension["TeX/unicode"].config.fonts,d=c.mbase.prototype.SVGgetVariant;c.mbase.Augment({SVGgetVariant:function(){var a=d.call(this);a.unicode&&(delete a.unicode,delete a.FONTS);if(!this.unicode)return a;a.unicode=!0;a.forceFamily||(a=MathJax.Hub.Insert({},a));a.defaultFamily=e;a.noRemap=!0;a.h=this.unicode[0];a.d=this.unicode[1];return a}})});MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/unicode.js");
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