mediawiki-extensions-Math/modules/MathJax/unpacked/extensions/MathML/content-mathml.js

/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */

/*************************************************************
 *
 *  MathJax/extensions/MathML/content-mathml.js
 *
 *  This file implements an XSLT transform to convert Content-MathML to
 *  Presentation MathML for processing by MathJax.  The transform is
 *  performed in a pre-filter for the MathML input jax, so that the
 *  Show Math As menu will still show the Original MathML as Content MathML,
 *  but the Presentation MathML can be obtained from the main MathML menu.
 *  
 *  To load it, include
 *  
 *      MathML: {
 *        extensions: ["content-mathml.js"]
 *      }
 *  
 *  in your configuration.
 *
 *  A portion of this file is taken from ctop.xsl which is
 *  Copyright (c) David Carlisle 2001, 2002,
 *  and is used by permission of David Carlisle, who has agreed to allow us
 *  to release it under the Apache2 license (see below).  That portion is
 *  indicated via comments.
 *  
 *  The remainder falls under the copyright that follows.
 *  ---------------------------------------------------------------------
 *  
 *  Copyright (c) 2013 The MathJax Consortium
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */


MathJax.Extension["MathML/content-mathml"] = {
  version: "2.3"
};

MathJax.Hub.Register.StartupHook("MathML Jax Ready",function () {

  var MATHML = MathJax.InputJax.MathML,
      PARSE = MATHML.Parse.prototype;

  MATHML.prefilterHooks.Add(function (data) {
    if (!MATHML.ctopXSLT) return;

    // Parse the <math> but use MATHML.Parse's preProcessMath to apply the normal preprocessing.
    if (!MATHML.ParseXML) {MATHML.ParseXML = MATHML.createParser()}
    var doc = MATHML.ParseXML(PARSE.preProcessMath(data.math));

    // Now transform the <math> using the ctop stylesheet.
    var newdoc = MATHML.ctopXSLT.transformToDocument(doc);

    if ((typeof newdoc) === "string") {
      // Internet Explorer returns a string, so just use it.
      data.math = newdoc;
    } else if (window.XMLSerializer) {
      // Serialize the <math> again. We could directly provide the DOM content
      // but other prefilterHooks may assume data.math is still a string.
      var serializer = new XMLSerializer();
      data.math = serializer.serializeToString(newdoc.documentElement, doc);
    }
  });

  /*
   *  The following is taken from ctop.xsl (http://www.w3.org/Math/XSL/ctop.xsl)
   *  which is Copyright (c) David Carlisle 2001, 2002.  It is used by permission
   *  of David Carlisle, who has agreed to allow it to be released under the 
   *  Apache2 licesnse.
   */
  var ctopStylesheet = '<x:stylesheet version="1.0" xmlns:x="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1998/Math/MathML" xmlns:m="http://www.w3.org/1998/Math/MathML" xmlns:e="http://exslt.org/strings"  xmlns:c="http://exslt.org/common" exclude-result-prefixes="m e c">  <!--  Copyright David Carlisle 2001, 2002, 2008, 2009.  Use and distribution of this code are permitted under the terms of the<a href="http://www.w3.org/Consortium/Legal/copyright-software-19980720" >W3C Software Notice and License</a>. 2001-2002 MathML2 version 2008-2009     Updates for MathML3 --> <x:output method="xml" /> <x:template match="/"><x:apply-templates/></x:template> <x:template match="*"><x:copy><x:copy-of select="@*"/><x:apply-templates/></x:copy></x:template>    <x:template match="m:cn"><mn><x:apply-templates/></mn></x:template> <x:template match="m:cn[@type=\'complex-cartesian\']"><mrow><mn><x:apply-templates select="text()[1]"/></mn><mo>+</mo><mn><x:apply-templates select="text()[2]"/></mn><mo>&#8290;</mo><mi>i</mi></mrow></x:template> <x:template match="m:apply[*[1][self::m:csymbol=\'complex_cartesian\']]"><mrow><mn><x:apply-templates select="*[2]"/></mn><mo>+</mo><mn><x:apply-templates select="*[3]"/></mn><mo>&#8290;</mo><mi>i</mi></mrow></x:template> <x:template match="m:cn[@type=\'rational\']"><mrow><mn><x:apply-templates select="text()[1]"/></mn><mo>/</mo><mn><x:apply-templates select="text()[2]"/></mn></mrow></x:template> <x:template match="m:apply[*[1][self::m:csymbol=\'rational\']]"><mrow><mn><x:apply-templates select="*[2]"/></mn><mo>/</mo><mn><x:apply-templates select="*[3]"/></mn></mrow></x:template> <x:template match="m:cn[not(@type) or @type=\'integer\']"><x:choose><x:when test="not(@base) or @base=10"><mn><x:apply-templates/></mn></x:when><x:otherwise><msub><mn><x:apply-templates/></mn><mn><x:value-of select="@base"/></mn></msub></x:otherwise></x:choose></x:template> <x:template match="m:cn[@type=\'complex-polar\']"><mrow><mn><x:apply-templates select="text()[1]"/></mn><mo>&#8290;</mo><msup><mi>e</mi><mrow><mi>i</mi><mo>&#8290;</mo><mn><x:apply-templates select="text()[2]"/></mn></mrow></msup></mrow></x:template> <x:template match="m:apply[*[1][self::m:csymbol=\'complex_polar\']]"><mrow><x:apply-templates select="*[2]"/><mo>&#8290;</mo><msup><mi>e</mi><mrow><mi>i</mi><mo>&#8290;</mo><x:apply-templates select="*[3]"/></mrow></msup></mrow></x:template> <x:template match="m:cn[@type=\'e-notation\']"><mn><x:apply-templates select="m:sep/preceding-sibling::node()"/><x:text>E</x:text><x:apply-templates select="m:sep/following-sibling::node()"/></mn></x:template> <x:template match="m:cn[@type=\'hexdouble\']"><mn><x:text>0x</x:text><x:apply-templates/></mn></x:template>   <x:template match="m:ci/text()"><mi><x:value-of select="."/></mi></x:template> <x:template match="m:ci"><mrow><x:apply-templates/></mrow></x:template>   <x:template match="m:csymbol/text()"><mi><x:value-of select="."/></mi></x:template> <x:template match="m:csymbol"><mrow><x:apply-templates/></mrow></x:template>   <x:template match="m:apply|m:reln"><mrow><x:choose><x:when test="*[1]/*/*"><mfenced separators="">    <x:apply-templates select="*[1]">       <x:with-param name="p" select="10"/>    </x:apply-templates></mfenced></x:when><x:otherwise><x:apply-templates select="*[1]">   <x:with-param name="p" select="10"/></x:apply-templates></x:otherwise></x:choose><mo>&#8289;</mo><mfenced open="(" close=")" separators=","><x:apply-templates select="*[position()>1]"/></mfenced></mrow></x:template>  <x:template match="m:bind"><mrow><x:choose><x:when test="*[1]/*/*"><mfenced separators="">     <x:apply-templates select="*[1]">       <x:with-param name="p" select="10"/>    </x:apply-templates></mfenced></x:when><x:otherwise><x:apply-templates select="*[1]">   <x:with-param name="p" select="10"/></x:apply-templates></x:otherwise></x:choose><x:apply-templates select="bvar/*"/><mo>.</mo><x:apply-templates select="*[position()>1][not(self::m:bvar)]"/></mrow></x:template>  <x:template match="m:fn"><mrow><x:apply-templates/></mrow></x:template>  <x:template m
  /*
   *  End of ctop.xsl material.
   */
  
  var ctop;
  if (window.XSLTProcessor) {
    // standard method: just use an XSLTProcessor and parse the stylesheet
    if (!MATHML.ParseXML) {MATHML.ParseXML = MATHML.createParser()}
    MATHML.ctopXSLT = new XSLTProcessor();
    MATHML.ctopXSLT.importStylesheet(MATHML.ParseXML(ctopStylesheet));
  } else if (MathJax.Hub.Browser.isMSIE) {
    // nonstandard methods for Internet Explorer
    if (MathJax.Hub.Browser.versionAtLeast("9.0")) {
      // For Internet Explorer >= 9, use createProcessor
      ctop = new ActiveXObject("Msxml2.FreeThreadedDOMDocument");
      ctop.loadXML(ctopStylesheet);
      var xslt = new ActiveXObject("Msxml2.XSLTemplate");
      xslt.stylesheet = ctop;
      MATHML.ctopXSLT = {
        ctop: xslt.createProcessor(),
        transformToDocument: function(doc) {
          this.ctop.input = doc;
          this.ctop.transform();
          return this.ctop.output;
        }
      }
    } else {
      // For Internet Explorer <= 8, use transformNode
      ctop = MATHML.createMSParser();
      ctop.async = false;
      ctop.loadXML(ctopStylesheet);
      MATHML.ctopXSLT = {
        ctop: ctop,
        transformToDocument: function(doc) {
          return doc.documentElement.transformNode(this.ctop);
        }
      }
    }
  } else {
    // No XSLT support. Do not change the <math> content.
    MATHML.ctopXSLT = null;
  }

  MathJax.Hub.Startup.signal.Post("MathML content-mathml Ready");
});

MathJax.Ajax.loadComplete("[MathJax]/extensions/MathML/content-mathml.js");