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noUndefined.js (2436B)

      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/noUndefined.js
      7  *  
      8  *  This causes undefined control sequences to be shown as their macro
      9  *  names rather than producing an error message.  So $X_{\xxx}$ would
     10  *  display as an X with a subscript consiting of the text "\xxx".
     11  *  
     12  *  To configure this extension, use for example
     13  *  
     14  *      MathJax.Hub.Config({
     15  *        TeX: {
     16  *          noUndefined: {
     17  *            attributes: {
     18  *              mathcolor: "red",
     19  *              mathbackground: "#FFEEEE",
     20  *              mathsize: "90%"
     21  *            }
     22  *          }
     23  *        }
     24  *      });
     25  *
     26  *  ---------------------------------------------------------------------
     27  *  
     28  *  Copyright (c) 2010-2015 The MathJax Consortium
     29  * 
     30  *  Licensed under the Apache License, Version 2.0 (the "License");
     31  *  you may not use this file except in compliance with the License.
     32  *  You may obtain a copy of the License at
     33  * 
     34  *      http://www.apache.org/licenses/LICENSE-2.0
     35  * 
     36  *  Unless required by applicable law or agreed to in writing, software
     37  *  distributed under the License is distributed on an "AS IS" BASIS,
     38  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     39  *  See the License for the specific language governing permissions and
     40  *  limitations under the License.
     41  */
     42 
     43 //
     44 //  The configuration defaults, augmented by the user settings
     45 //
     46 MathJax.Extension["TeX/noUndefined"] = {
     47   version: "2.6.0",
     48   config: MathJax.Hub.CombineConfig("TeX.noUndefined",{
     49     disabled: false,      // set to true to return to original error messages
     50     attributes: {
     51       mathcolor: "red"
     52     }
     53   })
     54 };
     55 
     56 MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
     57   var CONFIG = MathJax.Extension["TeX/noUndefined"].config;
     58   var MML = MathJax.ElementJax.mml;
     59   var UNDEFINED = MathJax.InputJax.TeX.Parse.prototype.csUndefined;
     60 
     61   MathJax.InputJax.TeX.Parse.Augment({
     62     csUndefined: function (name) {
     63       if (CONFIG.disabled) {return UNDEFINED.apply(this,arguments)}
     64       MathJax.Hub.signal.Post(["TeX Jax - undefined control sequence",name]);
     65       this.Push(MML.mtext(name).With(CONFIG.attributes));
     66     }
     67   });
     68 
     69   MathJax.Hub.Startup.signal.Post("TeX noUndefined Ready");
     70 });
     71 
     72 MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/noUndefined.js");