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HTML.js (2985B)

      1 /* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
      2 /* vim: set ts=2 et sw=2 tw=80: */
      3 
      4 /*************************************************************
      5  *
      6  *  MathJax/extensions/TeX/HTML.js
      7  *  
      8  *  Implements the \href, \class, \style, \cssId macros.
      9  *
     10  *  ---------------------------------------------------------------------
     11  *  
     12  *  Copyright (c) 2010-2015 The MathJax Consortium
     13  * 
     14  *  Licensed under the Apache License, Version 2.0 (the "License");
     15  *  you may not use this file except in compliance with the License.
     16  *  You may obtain a copy of the License at
     17  * 
     18  *      http://www.apache.org/licenses/LICENSE-2.0
     19  * 
     20  *  Unless required by applicable law or agreed to in writing, software
     21  *  distributed under the License is distributed on an "AS IS" BASIS,
     22  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     23  *  See the License for the specific language governing permissions and
     24  *  limitations under the License.
     25  */
     26 
     27 MathJax.Extension["TeX/HTML"] = {
     28   version: "2.6.0"
     29 };
     30 
     31 MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
     32 
     33   var TEX = MathJax.InputJax.TeX;
     34   var TEXDEF = TEX.Definitions;
     35   
     36   TEXDEF.Add({
     37     macros: {
     38       href:    'HREF_attribute',
     39       "class": 'CLASS_attribute',
     40       style:   'STYLE_attribute',
     41       cssId:   'ID_attribute'
     42     }
     43   },null,true);
     44 
     45   TEX.Parse.Augment({
     46 
     47     //
     48     //  Implements \href{url}{math}
     49     //
     50     HREF_attribute: function (name) {
     51       var url = this.GetArgument(name),
     52           arg = this.GetArgumentMML(name);
     53       this.Push(arg.With({href:url}));
     54     },
     55     
     56     //
     57     //  Implements \class{name}{math}
     58     //
     59     CLASS_attribute: function (name) {
     60       var CLASS = this.GetArgument(name),
     61           arg   = this.GetArgumentMML(name);
     62       if (arg["class"] != null) {CLASS = arg["class"] + " " + CLASS}
     63       this.Push(arg.With({"class":CLASS}));
     64     },
     65 
     66     //
     67     //  Implements \style{style-string}{math}
     68     //
     69     STYLE_attribute: function (name) {
     70       var style = this.GetArgument(name),
     71           arg   = this.GetArgumentMML(name);
     72       // check that it looks like a style string
     73       if (arg.style != null) {
     74         if (style.charAt(style.length-1) !== ";") {style += ";"}
     75         style = arg.style + " " + style;
     76       }
     77       this.Push(arg.With({style: style}));
     78     },
     79 
     80     //
     81     //  Implements \cssId{id}{math}
     82     //
     83     ID_attribute: function (name) {
     84       var ID  = this.GetArgument(name),
     85           arg = this.GetArgumentMML(name);
     86       this.Push(arg.With({id:ID}));
     87     },
     88 
     89     //
     90     //  returns an argument that is a single MathML element
     91     //  (in an mrow if necessary)
     92     //
     93     GetArgumentMML: function (name) {
     94       var arg = this.ParseArg(name);
     95       if (arg.inferred && arg.data.length == 1)
     96         {arg = arg.data[0]} else {delete arg.inferred}
     97       return arg;
     98     }
     99 
    100   });
    101   
    102   MathJax.Hub.Startup.signal.Post("TeX HTML Ready");
    103   
    104 });
    105 
    106 MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/HTML.js");