83 lines
3.4 KiB
JavaScript
83 lines
3.4 KiB
JavaScript
/**
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* From https://en.wikipedia.org/wiki/User:Nageh/mathJax/config/TeX-AMS-texvc_HTML.js
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*/
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/* global MathJax:true, $:true */
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MathJax.Extension.wiki2jax = {
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version: '1.0',
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config: {
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element: null // The ID of the element to be processed
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// (defaults to full document)
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},
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PreProcess: function (element) {
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if (!this.configured) {
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this.config = MathJax.Hub.CombineConfig('wiki2jax', this.config);
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if (this.config.Augment) {MathJax.Hub.Insert(this,this.config.Augment);}
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this.previewClass = MathJax.Hub.config.preRemoveClass;
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this.setupPrefilter();
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this.configured = true;
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}
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var that = this;
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$('.mwe-math-fallback-png-display, .mwe-math-fallback-png-inline, .mwe-math-fallback-source-display,'+
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'.mwe-math-fallback-source-inline, strong.texerror', element || document).each(function(i, span) {
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that.ConvertMath(span);
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});
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},
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setupPrefilter: function() { // used to fix a number of common wiki math hacks
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MathJax.Hub.Register.StartupHook('TeX Jax Ready', function() {
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MathJax.InputJax.TeX.prefilterHooks.Add( function(data) {
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data.math = data.math.replace(/^\s*\\scriptstyle(\W)/,'\\textstyle$1').replace(/^\s*\\scriptscriptstyle(\W)/,'\\scriptstyle$1');
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if (data.script.type.match(/(;|\s|\n)mode\s*=\s*display-nobreak(;|\s|\n|$)/) !== null) {
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data.math = '\\displaystyle ' + data.math;
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}
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});
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});
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},
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ConvertMath: function (node) {
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var parent = node.parentNode,
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mode = '', //Bug 61051 (heuristic unwanted by the community)
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tex;
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if (node.nodeName === 'IMG') {
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tex = node.alt;
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} else {
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if (node.nodeName === 'STRONG') {
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tex = $(node).text().replace(/^[^:]*: (.*)$/,'$1');
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} else {
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tex = $(node).text().replace(/^\$/,'').replace(/\$$/,'');
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}
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tex = tex.replace(/</g,'<').replace(/>/g,'>').replace(/&/g,'&').replace(/ /g,' ');
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}
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if ( $( node ).hasClass( 'mwe-math-fallback-png-display') || $( node ).hasClass( 'mwe-math-fallback-source-display') ){
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mode = '; mode=display';
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}
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// We don't allow comments (%) in texvc and escape all literal % by default.
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tex = tex.replace(/([^\\])%/g, '$1\\%' );
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tex = tex.replace(/\\iiint([^!]*)!\\!\\!\\!\\!.*\\subset\\!\\supset/g,'\\iiint$1mkern-2.5em\\subset\\!\\supset').replace(/\\iint([^!]*)!\\!\\!\\!\\!\\!\\!\\!\\!\\!\\!(.*)\\subset\\!\\supset/g,'\\iint$1mkern-1.65em$2\\subset\\!\\!\\supset').replace(/\\int\\!\\!\\!(\\!)+\\int\\!\\!\\!(\\!)+\\int([^!]*)!\\!\\!\\!\\!.*\\bigcirc(\\,)*/g,'\\iiint$3mkern-2.5em\\subset\\!\\supset').replace(/\\int\\!\\!\\!(\\!)+\\int([^!]*)!\\!\\!\\!\\!\\!\\!\\!\\!(.*)\\bigcirc(\\,)*/g,'\\iint$2mkern-1.65em$3\\subset\\!\\!\\supset');
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if (mode === '' && parent.firstChild === node) {mode = '; mode=display-nobreak';}
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var script = document.createElement('script');
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script.type = 'math/tex' + mode;
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MathJax.HTML.setScript(script, tex);
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if (node.nextSibling) {parent.insertBefore(script,node.nextSibling);}
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else {parent.appendChild(script);}
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var preview = MathJax.HTML.Element('span', {
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className: MathJax.Hub.config.preRemoveClass
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});
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preview.appendChild(parent.removeChild(node));
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parent.insertBefore(preview, script);
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}
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};
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MathJax.Hub.Register.PreProcessor(['PreProcess',MathJax.Extension.wiki2jax]);
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MathJax.Ajax.loadComplete(MathJax.Ajax.config.path.MediaWiki + '/wiki2jax.js');
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