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cancel.js

cancel.js 2.5 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/cancel.js
    7. 

  7.  *  
    8. 

  8.  *  Implements the \cancel, \bcancel, \xcancel, and \cancelto macros.
    9. 

  9.  *  
    10. 

  10.  *  Usage:
    11. 

  11.  *  
    12. 

  12.  *      \cancel{math}            % strikeout math from lower left to upper right
    13. 

  13.  *      \bcancel{math}           % strikeout from upper left to lower right
    14. 

  14.  *      \xcancel{math}           % strikeout with an X
    15. 

  15.  *      \cancelto{value}{math}   % strikeout with arrow going to value
    16. 

  16.  *  
    17. 

  17.  *  ---------------------------------------------------------------------
    18. 

  18.  *  
    19. 

  19.  *  Copyright (c) 2011-2013 The MathJax Consortium
    20. 

  20.  * 
    21. 

  21.  *  Licensed under the Apache License, Version 2.0 (the "License");
    22. 

  22.  *  you may not use this file except in compliance with the License.
    23. 

  23.  *  You may obtain a copy of the License at
    24. 

  24.  * 
    25. 

  25.  *      http://www.apache.org/licenses/LICENSE-2.0
    26. 

  26.  * 
    27. 

  27.  *  Unless required by applicable law or agreed to in writing, software
    28. 

  28.  *  distributed under the License is distributed on an "AS IS" BASIS,
    29. 

  29.  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    30. 

  30.  *  See the License for the specific language governing permissions and
    31. 

  31.  *  limitations under the License.
    32. 

  32.  */MathJax.Extension["TeX/cancel"]={version:"2.2",ALLOWED:{arrow:1,color:1,mathcolor:1,background:1,mathbackground:1,padding:1,thickness:1}};MathJax.Hub.Register.StartupHook("TeX Jax Ready",function(){var h=MathJax.InputJax.TeX,a=MathJax.ElementJax.mml,g=MathJax.Extension["TeX/cancel"];g.setAttributes=function(a,d){if(""!==d){d=d.replace(/ /g,"").split(/,/);for(var b=0,e=d.length;b<e;b++){var c=d[b].split(/[:=]/);g.ALLOWED[c[0]]&&("true"===c[1]&&(c[1]=!0),"false"===c[1]&&(c[1]=!1),a[c[0]]=c[1])}}return a};h.Definitions.Add({macros:{cancel:["Cancel",a.NOTATION.UPDIAGONALSTRIKE],bcancel:["Cancel",a.NOTATION.DOWNDIAGONALSTRIKE],xcancel:["Cancel",a.NOTATION.UPDIAGONALSTRIKE+" "+a.NOTATION.DOWNDIAGONALSTRIKE],cancelto:"CancelTo"}},null,!0);h.Parse.Augment({Cancel:function(f,d){var b=this.GetBrackets(f,""),e=this.ParseArg(f),b=g.setAttributes({notation:d},b);this.Push(a.menclose(e).With(b))},CancelTo:function(f,d){var b=this.ParseArg(f),e=this.GetBrackets(f,""),c=this.ParseArg(f),e=g.setAttributes({notation:a.NOTATION.UPDIAGONALSTRIKE,arrow:!0},e),b=a.mpadded(b).With({depth:"-.1em",height:"+.1em",voffset:".1em"});this.Push(a.msup(a.menclose(c).With(e),b))}});MathJax.Hub.Startup.signal.Post("TeX cancel Ready")});MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/cancel.js");
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