noUndefined.js 2.4 KB

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  1. /* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
  2. /* vim: set ts=2 et sw=2 tw=80: */
  3. /*************************************************************
  4. *
  5. * MathJax/extensions/TeX/noUndefined.js
  6. *
  7. * This causes undefined control sequences to be shown as their macro
  8. * names rather than producing an error message. So $X_{\xxx}$ would
  9. * display as an X with a subscript consiting of the text "\xxx".
  10. *
  11. * To configure this extension, use for example
  12. *
  13. * MathJax.Hub.Config({
  14. * TeX: {
  15. * noUndefined: {
  16. * attributes: {
  17. * mathcolor: "red",
  18. * mathbackground: "#FFEEEE",
  19. * mathsize: "90%"
  20. * }
  21. * }
  22. * }
  23. * });
  24. *
  25. * ---------------------------------------------------------------------
  26. *
  27. * Copyright (c) 2010-2015 The MathJax Consortium
  28. *
  29. * Licensed under the Apache License, Version 2.0 (the "License");
  30. * you may not use this file except in compliance with the License.
  31. * You may obtain a copy of the License at
  32. *
  33. * http://www.apache.org/licenses/LICENSE-2.0
  34. *
  35. * Unless required by applicable law or agreed to in writing, software
  36. * distributed under the License is distributed on an "AS IS" BASIS,
  37. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  38. * See the License for the specific language governing permissions and
  39. * limitations under the License.
  40. */
  41. //
  42. // The configuration defaults, augmented by the user settings
  43. //
  44. MathJax.Extension["TeX/noUndefined"] = {
  45. version: "2.5.0",
  46. config: MathJax.Hub.CombineConfig("TeX.noUndefined",{
  47. disabled: false, // set to true to return to original error messages
  48. attributes: {
  49. mathcolor: "red"
  50. }
  51. })
  52. };
  53. MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
  54. var CONFIG = MathJax.Extension["TeX/noUndefined"].config;
  55. var MML = MathJax.ElementJax.mml;
  56. var UNDEFINED = MathJax.InputJax.TeX.Parse.prototype.csUndefined;
  57. MathJax.InputJax.TeX.Parse.Augment({
  58. csUndefined: function (name) {
  59. if (CONFIG.disabled) {return UNDEFINED.apply(this,arguments)}
  60. MathJax.Hub.signal.Post(["TeX Jax - undefined control sequence",name]);
  61. this.Push(MML.mtext(name).With(CONFIG.attributes));
  62. }
  63. });
  64. MathJax.Hub.Startup.signal.Post("TeX noUndefined Ready");
  65. });
  66. MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/noUndefined.js");