1092 lines
42 KiB
JavaScript
1092 lines
42 KiB
JavaScript
/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/*************************************************************
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*
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* MathJax/jax/output/PreviewHTML/jax.js
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*
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* Implements the PreviewHTML OutputJax that displays mathematics
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* using HTML to position the characters from math fonts
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* in their proper locations.
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*
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* ---------------------------------------------------------------------
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*
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* Copyright (c) 2013-2015 The MathJax Consortium
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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(function (AJAX,HUB,HTML,PHTML) {
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var MML;
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var EVENT, TOUCH, HOVER; // filled in later
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var FONTS = "'Times New Roman',Times,STIXGeneral,serif";
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var STYLES = {
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".MJXf-script": {"font-size":".8em"},
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".MJXf-right": {
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"-webkit-transform-origin":"right",
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"-moz-transform-origin":"right",
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"-ms-transform-origin":"right",
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"-o-transform-origin":"right",
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"transform-origin":"right"
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},
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".MJXf-bold": {"font-weight":"bold"},
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".MJXf-italic": {"font-style":"italic"},
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".MJXf-scr": {"font-family":"MathJax_Script,"+FONTS},
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".MJXf-frak": {"font-family":"MathJax_Fraktur,"+FONTS},
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".MJXf-sf": {"font-family":"MathJax_SansSerif,"+FONTS},
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".MJXf-cal": {"font-family":"MathJax_Caligraphic,"+FONTS},
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".MJXf-mono": {"font-family":"MathJax_Typewriter,"+FONTS},
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".MJXf-largeop": {"font-size":"150%"},
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".MJXf-largeop.MJXf-int": {"vertical-align":"-.2em"},
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".MJXf-math": {
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"display": "inline-block",
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"line-height": "1.2",
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"text-indent": "0",
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"font-family": FONTS,
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"white-space":"nowrap",
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"border-collapse":"collapse"
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},
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".MJXf-display": {
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"display": "block",
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"text-align": "center",
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"margin": "1em 0"
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},
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".MJXf-math span": {"display": "inline-block"},
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".MJXf-box": {"display":"block!important", "text-align": "center"},
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".MJXf-box:after": {"content": '" "'}, // needed for when there is no DOCTYPE
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".MJXf-rule": {"display":"block!important", "margin-top":".1em"},
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".MJXf-char": {"display":"block!important"},
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".MJXf-mo": {"margin": "0 .15em"},
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".MJXf-mfrac": {"margin": "0 .125em", "vertical-align":".25em"},
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".MJXf-denom": {"display": "inline-table!important", "width":"100%"},
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".MJXf-denom > *": {"display": "table-row!important"},
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".MJXf-surd": {"vertical-align":"top"},
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".MJXf-surd > *": {"display":"block!important"},
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".MJXf-script-box > * ": {"display":"table!important", "height":"50%"},
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".MJXf-script-box > * > *": {"display":"table-cell!important","vertical-align":"top"},
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".MJXf-script-box > *:last-child > *": {"vertical-align":"bottom"},
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".MJXf-script-box > * > * > *": {"display":"block!important"},
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".MJXf-mphantom": {"visibility": "hidden"},
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".MJXf-munderover": {"display":"inline-table!important"},
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".MJXf-over": {"display":"inline-block!important","text-align":"center"},
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".MJXf-over > *": {"display":"block!important"},
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".MJXf-munderover > *": {"display":"table-row!important"},
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".MJXf-mtable": {"vertical-align":".25em", "margin":"0 .125em"},
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".MJXf-mtable > *": {"display":"inline-table!important", "vertical-align":"middle"},
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".MJXf-mtr": {"display":"table-row!important"},
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".MJXf-mtd": {"display":"table-cell!important","text-align":"center","padding":".5em 0 0 .5em"},
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".MJXf-mtr > .MJXf-mtd:first-child": {"padding-left":0},
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".MJXf-mtr:first-child > .MJXf-mtd": {"padding-top":0},
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".MJXf-mlabeledtr": {"display":"table-row!important"},
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".MJXf-mlabeledtr > .MJXf-mtd:first-child": {"padding-left":0},
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".MJXf-mlabeledtr:first-child > .MJXf-mtd": {"padding-top":0},
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".MJXf-merror": {
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"background-color": "#FFFF88",
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color: "#CC0000",
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border: "1px solid #CC0000",
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padding: "1px 3px",
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"font-style": "normal",
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"font-size": "90%"
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}
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};
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(function () {
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for (var i = 0; i < 10; i++) {
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var scale = "scaleX(."+i+")";
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STYLES[".MJXf-scale"+i] = {
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"-webkit-transform":scale,
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"-moz-transform":scale,
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"-ms-transform":scale,
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"-o-transform":scale,
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"transform":scale
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}
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}
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})();
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var BIGDIMEN = 1000000;
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var V = "V", H = "H";
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PHTML.Augment({
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settings: HUB.config.menuSettings,
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config: {styles: STYLES},
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hideProcessedMath: false, // use display:none until all math is processed
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maxStretchyParts: 1000, // limit the number of parts allowed for
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// stretchy operators. See issue 366.
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Config: function () {
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if (!this.require) {this.require = []}
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this.SUPER(arguments).Config.call(this); var settings = this.settings;
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if (settings.scale) {this.config.scale = settings.scale}
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this.require.push(MathJax.OutputJax.extensionDir+"/MathEvents.js");
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},
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Startup: function () {
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//
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// Set up event handling
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//
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EVENT = MathJax.Extension.MathEvents.Event;
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TOUCH = MathJax.Extension.MathEvents.Touch;
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HOVER = MathJax.Extension.MathEvents.Hover;
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this.ContextMenu = EVENT.ContextMenu;
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this.Mousedown = EVENT.AltContextMenu;
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this.Mouseover = HOVER.Mouseover;
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this.Mouseout = HOVER.Mouseout;
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this.Mousemove = HOVER.Mousemove;
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//
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// Determine pixels per inch
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//
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var div = HTML.addElement(document.body,"div",{style:{width:"5in"}});
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this.pxPerInch = div.offsetWidth/5; div.parentNode.removeChild(div);
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//
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// Set up styles and preload web fonts
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//
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return AJAX.Styles(this.config.styles,["InitializePHTML",this]);
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},
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InitializePHTML: function () {
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},
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preTranslate: function (state) {
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var scripts = state.jax[this.id], i, m = scripts.length,
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script, prev, span, div, jax;
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//
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// Loop through the scripts
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//
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for (i = 0; i < m; i++) {
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script = scripts[i]; if (!script.parentNode) continue;
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//
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// Remove any existing output
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//
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prev = script.previousSibling;
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if (prev && String(prev.className).match(/^MathJax_PHTML(_Display)?( MathJax_Processing)?$/))
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{prev.parentNode.removeChild(prev)}
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//
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// Add the span, and a div if in display mode,
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// then set the role and mark it as being processed
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//
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jax = script.MathJax.elementJax; if (!jax) continue;
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jax.PHTML = {display: (jax.root.Get("display") === "block")}
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span = div = HTML.Element("span",{
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className:"MathJax_PHTML", id:jax.inputID+"-Frame", isMathJax:true, jaxID:this.id,
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oncontextmenu:EVENT.Menu, onmousedown: EVENT.Mousedown,
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onmouseover:EVENT.Mouseover, onmouseout:EVENT.Mouseout, onmousemove:EVENT.Mousemove,
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onclick:EVENT.Click, ondblclick:EVENT.DblClick,
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// Added for keyboard accessible menu.
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onkeydown: EVENT.Keydown, tabIndex: "0"
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});
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if (HUB.Browser.noContextMenu) {
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span.ontouchstart = TOUCH.start;
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span.ontouchend = TOUCH.end;
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}
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if (jax.PHTML.display) {
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div = HTML.Element("div",{className:"MathJax_PHTML_Display"});
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div.appendChild(span);
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}
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//
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div.className += " MathJax_Processing";
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script.parentNode.insertBefore(div,script);
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}
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},
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Translate: function (script,state) {
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if (!script.parentNode) return;
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//
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// Get the data about the math
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//
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var jax = script.MathJax.elementJax, math = jax.root,
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span = document.getElementById(jax.inputID+"-Frame"),
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div = (jax.PHTML.display ? span.parentNode : span);
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//
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// Typeset the math
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//
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this.initPHTML(math,span);
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// math.setTeXclass();
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try {math.toPreviewHTML(span)} catch (err) {
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if (err.restart) {while (span.firstChild) {span.removeChild(span.firstChild)}}
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throw err;
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}
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//
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// Put it in place, and remove the processing marker
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//
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div.className = div.className.split(/ /)[0];
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//
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// Check if we are hiding the math until more is processed
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//
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if (this.hideProcessedMath) {
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//
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// Hide the math and don't let its preview be removed
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//
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div.className += " MathJax_Processed";
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if (script.MathJax.preview) {
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jax.PHTML.preview = script.MathJax.preview;
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delete script.MathJax.preview;
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}
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}
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},
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postTranslate: function (state) {
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var scripts = state.jax[this.id];
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if (!this.hideProcessedMath) return;
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for (var i = 0, m = scripts.length; i < m; i++) {
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var script = scripts[i];
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if (script && script.MathJax.elementJax) {
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//
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// Remove the processed marker
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//
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script.previousSibling.className = script.previousSibling.className.split(/ /)[0];
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var data = script.MathJax.elementJax.PHTML;
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//
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// Remove the preview, if any
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//
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if (data.preview) {
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data.preview.innerHTML = "";
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script.MathJax.preview = data.preview;
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delete data.preview;
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}
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}
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}
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},
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getJaxFromMath: function (math) {
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if (math.parentNode.className === "MathJax_PHTML_Display") {math = math.parentNode}
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do {math = math.nextSibling} while (math && math.nodeName.toLowerCase() !== "script");
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return HUB.getJaxFor(math);
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},
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getHoverSpan: function (jax,math) {return jax.root.PHTMLspanElement()},
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getHoverBBox: function (jax,span,math) {
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var bbox = jax.root.PHTML, em = jax.PHTML.outerEm;
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var BBOX = {w:bbox.w*em, h:bbox.h*em, d:bbox.d*em};
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if (bbox.width) {BBOX.width = bbox.width}
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return BBOX;
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},
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Zoom: function (jax,span,math,Mw,Mh) {
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//
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// Re-render at larger size
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//
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span.className = "MathJax";
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this.idPostfix = "-zoom"; jax.root.toPHTML(span,span); this.idPostfix = "";
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//
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// Get height and width of zoomed math and original math
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//
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span.style.position = "absolute";
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if (!width) {math.style.position = "absolute"}
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var zW = span.offsetWidth, zH = span.offsetHeight,
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mH = math.offsetHeight, mW = math.offsetWidth;
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if (mW === 0) {mW = math.parentNode.offsetWidth}; // IE7 gets mW == 0?
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span.style.position = math.style.position = "";
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//
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return {Y:-EVENT.getBBox(span).h, mW:mW, mH:mH, zW:zW, zH:zH};
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},
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initPHTML: function (math,span) {},
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Remove: function (jax) {
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var span = document.getElementById(jax.inputID+"-Frame");
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if (span) {
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if (jax.PHTML.display) {span = span.parentNode}
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span.parentNode.removeChild(span);
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}
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delete jax.PHTML;
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},
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ID: 0, idPostfix: "",
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GetID: function () {this.ID++; return this.ID},
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VARIANT: {
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"bold": "MJXf-bold",
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"italic": "MJXf-italic",
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"bold-italic": "MJXf-bold MJXf-italic",
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"script": "MJXf-scr",
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"bold-script": "MJXf-scr MJXf-bold",
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"fraktur": "MJXf-frak",
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"bold-fraktur": "MJXf-frak MJXf-bold",
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"monospace": "MJXf-mono",
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"sans-serif": "MJXf-sf",
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"-tex-caligraphic": "MJXf-cal"
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},
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MATHSPACE: {
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veryverythinmathspace: 1/18,
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verythinmathspace: 2/18,
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thinmathspace: 3/18,
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mediummathspace: 4/18,
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thickmathspace: 5/18,
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verythickmathspace: 6/18,
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veryverythickmathspace: 7/18,
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negativeveryverythinmathspace: -1/18,
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negativeverythinmathspace: -2/18,
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negativethinmathspace: -3/18,
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negativemediummathspace: -4/18,
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negativethickmathspace: -5/18,
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negativeverythickmathspace: -6/18,
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negativeveryverythickmathspace: -7/18,
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thin: .08,
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medium: .1,
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thick: .15,
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infinity: BIGDIMEN
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},
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TeX: {
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x_height: .430554
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},
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pxPerInch: 72,
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em: 16,
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// ### FIXME: add more here
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DELIMITERS: {
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"(": {dir:V},
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"{": {dir:V, w:.58},
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"[": {dir:V},
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"|": {dir:V, w:.275},
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")": {dir:V},
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"}": {dir:V, w:.58},
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"]": {dir:V},
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"/": {dir:V},
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"\\": {dir:V},
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"\u2223": {dir:V, w:.275},
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"\u2225": {dir:V, w:.55},
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"\u230A": {dir:V, w:.5},
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"\u230B": {dir:V, w:.5},
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"\u2308": {dir:V, w:.5},
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"\u2309": {dir:V, w:.5},
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"\u27E8": {dir:V, w:.5},
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"\u27E9": {dir:V, w:.5},
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"\u2191": {dir:V, w:.65},
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"\u2193": {dir:V, w:.65},
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"\u21D1": {dir:V, w:.75},
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"\u21D3": {dir:V, w:.75},
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"\u2195": {dir:V, w:.65},
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"\u21D5": {dir:V, w:.75},
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"\u27EE": {dir:V, w:.275},
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"\u27EF": {dir:V, w:.275},
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"\u23B0": {dir:V, w:.6},
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"\u23B1": {dir:V, w:.6}
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},
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REMAPACCENT: {
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"\u20D7":"\u2192", // vector arrow
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"'": "\u02CB",
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"`": "\u02CA",
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".": "\u02D9",
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"^": "\u02C6",
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"-": "\u02C9",
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"~": "\u02DC",
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"\u00AF": "\u02C9", // macron
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"\u00B0": "\u02DA", // degree sign
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"\u00B4": "\u02CA", // acute accent
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"\u0300": "\u02CB", // combining grave
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"\u0301": "\u02CA", // combining acute
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"\u0302": "\u02C6", // combining circumflex
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"\u0303": "\u02DC", // combinig tilde
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"\u0304": "\u02C9", // combining macron
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"\u0305": "\u02C9", // combining overline
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"\u0306": "\u02D8", // combining breve
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"\u0307": "\u02D9", // combining dot
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"\u0308": "\u00A8", // combining double dot
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"\u030C": "\u02C7" // combining caron
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},
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REMAPACCENTUNDER: {
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},
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length2em: function (length,size) {
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if (typeof(length) !== "string") {length = length.toString()}
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if (length === "") {return ""}
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if (length === MML.SIZE.NORMAL) {return 1}
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if (length === MML.SIZE.BIG) {return 2}
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if (length === MML.SIZE.SMALL) {return .71}
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if (this.MATHSPACE[length]) {return this.MATHSPACE[length]}
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var match = length.match(/^\s*([-+]?(?:\.\d+|\d+(?:\.\d*)?))?(pt|em|ex|mu|px|pc|in|mm|cm|%)?/);
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var m = parseFloat(match[1]||"1"), unit = match[2];
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if (size == null) {size = 1}
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if (unit === "em") {return m}
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if (unit === "ex") {return m * this.TeX.x_height}
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if (unit === "%") {return m / 100 * size}
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if (unit === "px") {return m / this.em}
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if (unit === "pt") {return m / 10} // 10 pt to an em
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if (unit === "pc") {return m * 1.2} // 12 pt to a pc
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if (unit === "in") {return m * this.pxPerInch / this.em}
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if (unit === "cm") {return m * this.pxPerInch / this.em / 2.54} // 2.54 cm to an inch
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if (unit === "mm") {return m * this.pxPerInch / this.em / 25.4} // 10 mm to a cm
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if (unit === "mu") {return m / 18} // 18mu to an em for the scriptlevel
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return m*size; // relative to given size (or 1em as default)
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},
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Em: function (m) {
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if (Math.abs(m) < .001) return "0em";
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return (m.toFixed(3).replace(/\.?0+$/,""))+"em";
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},
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|
|
arrayEntry: function (a,i) {return a[Math.max(0,Math.min(i,a.length-1))]}
|
|
|
|
});
|
|
|
|
MathJax.Hub.Register.StartupHook("mml Jax Ready",function () {
|
|
MML = MathJax.ElementJax.mml;
|
|
|
|
MML.mbase.Augment({
|
|
toPreviewHTML: function (span,options) {
|
|
return this.PHTMLdefaultSpan(span,options);
|
|
},
|
|
|
|
PHTMLdefaultSpan: function (span,options) {
|
|
if (!options) options = {};
|
|
span = this.PHTMLcreateSpan(span);
|
|
this.PHTMLhandleStyle(span);
|
|
this.PHTMLhandleColor(span);
|
|
if (this.isToken) this.PHTMLhandleToken(span);
|
|
for (var i = 0, m = this.data.length; i < m; i++) this.PHTMLaddChild(span,i,options);
|
|
return span;
|
|
},
|
|
PHTMLaddChild: function (span,i,options) {
|
|
var child = this.data[i];
|
|
if (child) {
|
|
if (options.childSpans)
|
|
span = HTML.addElement(span,"span",{className:options.className});
|
|
child.toPreviewHTML(span);
|
|
if (!options.noBBox) {
|
|
this.PHTML.w += child.PHTML.w + child.PHTML.l + child.PHTML.r;
|
|
if (child.PHTML.h > this.PHTML.h) this.PHTML.h = child.PHTML.h;
|
|
if (child.PHTML.d > this.PHTML.d) this.PHTML.d = child.PHTML.d;
|
|
if (child.PHTML.t > this.PHTML.t) this.PHTML.t = child.PHTML.t;
|
|
if (child.PHTML.b > this.PHTML.b) this.PHTML.b = child.PHTML.b;
|
|
}
|
|
} else if (options.forceChild) {HTML.addElement(span,"span")}
|
|
},
|
|
PHTMLstretchChild: function (i,H,D) {
|
|
var data = this.data[i];
|
|
if (data && data.PHTMLcanStretch("Vertical",H,D)) {
|
|
var bbox = this.PHTML, dbox = data.PHTML, w = dbox.w;
|
|
data.PHTMLstretchV(H,D);
|
|
bbox.w += dbox.w - w;
|
|
if (dbox.h > bbox.h) bbox.h = dbox.h;
|
|
if (dbox.d > bbox.d) bbox.d = dbox.d;
|
|
}
|
|
},
|
|
|
|
PHTMLcreateSpan: function (span) {
|
|
if (!this.PHTML) this.PHTML = {};
|
|
this.PHTML = {w:0, h:0, d:0, l:0, r:0, t:0, b:0};
|
|
if (this.inferred) return span;
|
|
// ### FIXME: This is a hack to handle the different spacing of the
|
|
// ### integral sign in Times compared to CM fonts
|
|
if (this.type === "mo" && this.data.join("") === "\u222B") {PHTML.lastIsInt = true}
|
|
else if (this.type !== "mspace" || this.width !== "negativethinmathspace") {PHTML.lastIsInt = false}
|
|
// ###
|
|
if (!this.PHTMLspanID) {this.PHTMLspanID = PHTML.GetID()};
|
|
var id = (this.id || "MJXf-Span-"+this.PHTMLspanID);
|
|
return HTML.addElement(span,"span",{className:"MJXf-"+this.type, id:id});
|
|
},
|
|
PHTMLspanElement: function () {
|
|
if (!this.PHTMLspanID) {return null}
|
|
return document.getElementById(this.id||"MJXf-Span-"+this.PHTMLspanID);
|
|
},
|
|
|
|
PHTMLhandleToken: function (span) {
|
|
var values = this.getValues("mathvariant");
|
|
if (values.mathvariant !== MML.VARIANT.NORMAL) {
|
|
span.className += " "+PHTML.VARIANT[values.mathvariant];
|
|
}
|
|
},
|
|
|
|
PHTMLhandleStyle: function (span) {
|
|
if (this.style) span.style.cssText = this.style;
|
|
},
|
|
|
|
PHTMLhandleColor: function (span) {
|
|
if (this.mathcolor) {span.style.color = this.mathcolor}
|
|
if (this.mathbackground) {span.style.backgroundColor = this.mathbackground}
|
|
},
|
|
|
|
PHTMLhandleScriptlevel: function (span) {
|
|
// ### FIXME: Need to prevent getting too small
|
|
// ### and should keep track of scaling so it can be compensated for
|
|
var level = this.Get("scriptlevel");
|
|
if (level) span.className += " MJXf-script";
|
|
},
|
|
|
|
PHTMLhandleText: function (span,text) {
|
|
var c, n;
|
|
var H = 0, D = 0, W = 0;
|
|
for (var i = 0, m = text.length; i < m; i++) {
|
|
n = text.charCodeAt(i); c = text.charAt(i);
|
|
if (n >= 0xD800 && n < 0xDBFF) {
|
|
i++; n = (((n-0xD800)<<10)+(text.charCodeAt(i)-0xDC00))+0x10000;
|
|
}
|
|
var h = .7, d = .22, w = .5;
|
|
if (n < 127) {
|
|
if (c.match(/[A-Za-ehik-or-xz0-9]/)) d = 0;
|
|
if (c.match(/[A-HK-Z]/)) {w = .67} else if (c.match(/[IJ]/)) {w = .36}
|
|
if (c.match(/[acegm-su-z]/)) {h = .45} else if (c.match(/[ij]/)) {h = .75}
|
|
if (c.match(/[ijlt]/)) w = .28;
|
|
}
|
|
if (PHTML.DELIMITERS[c]) {w = PHTML.DELIMITERS[c].w || .4}
|
|
// ### FIXME: handle Greek
|
|
// ### Combining diacriticals (all sets), spacing modifiers
|
|
// ### arrows (all sets), widths of braces
|
|
if (h > H) H = h; if (d > D) D = d; W += w;
|
|
}
|
|
if (!this.CHML) this.PHTML = {};
|
|
this.PHTML = {h:.9, d:.3, w:W, l:0, r:0, t:H, b:D};
|
|
HTML.addText(span,text);
|
|
},
|
|
|
|
PHTMLbboxFor: function (n) {
|
|
if (this.data[n] && this.data[n].PHTML) return this.data[n].PHTML;
|
|
return {w:0, h:0, d:0, l:0, r:0, t:0, b:0};
|
|
},
|
|
|
|
PHTMLcanStretch: function (direction,H,D) {
|
|
if (this.isEmbellished()) {
|
|
var core = this.Core();
|
|
if (core && core !== this) {return core.PHTMLcanStretch(direction,H,D)}
|
|
}
|
|
return false;
|
|
},
|
|
PHTMLstretchV: function (h,d) {},
|
|
PHTMLstretchH: function (w) {},
|
|
|
|
CoreParent: function () {
|
|
var parent = this;
|
|
while (parent && parent.isEmbellished() &&
|
|
parent.CoreMO() === this && !parent.isa(MML.math)) {parent = parent.Parent()}
|
|
return parent;
|
|
},
|
|
CoreText: function (parent) {
|
|
if (!parent) {return ""}
|
|
if (parent.isEmbellished()) {return parent.CoreMO().data.join("")}
|
|
while ((parent.isa(MML.mrow) || parent.isa(MML.TeXAtom) ||
|
|
parent.isa(MML.mstyle) || parent.isa(MML.mphantom)) &&
|
|
parent.data.length === 1 && parent.data[0]) {parent = parent.data[0]}
|
|
if (!parent.isToken) {return ""} else {return parent.data.join("")}
|
|
}
|
|
|
|
});
|
|
|
|
MML.chars.Augment({
|
|
toPreviewHTML: function (span) {
|
|
var text = this.toString().replace(/[\u2061-\u2064]/g,"");
|
|
this.PHTMLhandleText(span,text);
|
|
}
|
|
});
|
|
MML.entity.Augment({
|
|
toPreviewHTML: function (span) {
|
|
var text = this.toString().replace(/[\u2061-\u2064]/g,"");
|
|
this.PHTMLhandleText(span,text);
|
|
}
|
|
});
|
|
|
|
MML.math.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span);
|
|
if (this.Get("display") === "block") {span.className += " MJXf-display"}
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mo.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span);
|
|
this.PHTMLadjustAccent(span);
|
|
var values = this.getValues("lspace","rspace","scriptlevel","displaystyle","largeop");
|
|
if (values.scriptlevel === 0) {
|
|
this.PHTML.l = PHTML.length2em(values.lspace);
|
|
this.PHTML.r = PHTML.length2em(values.rspace);
|
|
span.style.marginLeft = PHTML.Em(this.PHTML.l);
|
|
span.style.marginRight = PHTML.Em(this.PHTML.r);
|
|
} else {
|
|
this.PHTML.l = .15;
|
|
this.PHTML.r = .1;
|
|
}
|
|
if (values.displaystyle && values.largeop) {
|
|
var box = HTML.Element("span",{className:"MJXf-largeop"});
|
|
box.appendChild(span.firstChild); span.appendChild(box);
|
|
this.PHTML.h *= 1.2; this.PHTML.d *= 1.2;
|
|
if (this.data.join("") === "\u222B") box.className += " MJXf-int";
|
|
}
|
|
// ### FIXME: Handle embellished op spacing
|
|
// ### FIXME: Remap minus signs
|
|
return span;
|
|
},
|
|
PHTMLadjustAccent: function (span) {
|
|
var parent = this.CoreParent();
|
|
if (parent && parent.isa(MML.munderover) &&
|
|
this.CoreText(parent.data[parent.base]).length === 1) {
|
|
var over = parent.data[parent.over], under = parent.data[parent.under];
|
|
var c = this.data.join(""), C;
|
|
if (over && this === over.CoreMO() && parent.Get("accent")) {C = PHTML.REMAPACCENT[c]}
|
|
else if (under && this === under.CoreMO() && parent.Get("accentunder")) {C = PHTML.REMAPACCENTUNDER[c]}
|
|
if (C) c = span.innerHTML = C;
|
|
if (c.match(/[\u02C6-\u02DC\u00A8]/)) {this.PHTML.acc = -.52}
|
|
else if (c === "\u2192") {this.PHTML.acc = -.15; this.PHTML.vec = true}
|
|
}
|
|
},
|
|
PHTMLcanStretch: function (direction,H,D) {
|
|
if (!this.Get("stretchy")) {return false}
|
|
var c = this.data.join("");
|
|
if (c.length > 1) {return false}
|
|
c = PHTML.DELIMITERS[c];
|
|
var stretch = (c && c.dir === direction.substr(0,1));
|
|
if (stretch) {
|
|
stretch = (this.PHTML.h !== H || this.PHTML.d !== D ||
|
|
(this.Get("minsize",true) || this.Get("maxsize",true)));
|
|
}
|
|
return stretch;
|
|
},
|
|
PHTMLstretchV: function (h,d) {
|
|
var span = this.PHTMLspanElement(), bbox = this.PHTML; //bbox.w = .4; // ## adjust width
|
|
var values = this.getValues("symmetric","maxsize","minsize");
|
|
if (values.symmetric) {H = 2*Math.max(h-.25,d+.25)} else {H = h + d}
|
|
values.maxsize = PHTML.length2em(values.maxsize,bbox.h+bbox.d);
|
|
values.minsize = PHTML.length2em(values.minsize,bbox.h+bbox.d);
|
|
H = Math.max(values.minsize,Math.min(values.maxsize,H));
|
|
var scale = H/(bbox.h+bbox.d-.3); // ### adjusted for extra tall bbox
|
|
var box = HTML.Element("span",{style:{"font-size":PHTML.Em(scale)}});
|
|
if (scale > 1.25) {
|
|
var sX = Math.ceil(1.25/scale * 10);
|
|
box.className = "MJXf-right MJXf-scale"+sX;
|
|
box.style.marginLeft = PHTML.Em(bbox.w*(sX/10-1)+.07);
|
|
bbox.w *= scale*sX/10;
|
|
}
|
|
box.appendChild(span.firstChild); span.appendChild(box);
|
|
if (values.symmetric) span.style.verticalAlign = PHTML.Em(.25*(1-scale));
|
|
}
|
|
});
|
|
|
|
MML.mspace.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span);
|
|
var values = this.getValues("height","depth","width");
|
|
var w = PHTML.length2em(values.width),
|
|
h = PHTML.length2em(values.height),
|
|
d = PHTML.length2em(values.depth);
|
|
var bbox = this.PHTML;
|
|
bbox.w = w; bbox.h = h; bbox.d = d;
|
|
if (w < 0) {
|
|
// ### FIXME: lastIsInt hack
|
|
if (!PHTML.lastIsInt) span.style.marginLeft = PHTML.Em(w);
|
|
w = 0;
|
|
}
|
|
span.style.width = PHTML.Em(w);
|
|
span.style.height = PHTML.Em(h+d);
|
|
if (d) span.style.verticalAlign = PHTML.Em(-d);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mpadded.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span,{
|
|
childSpans:true, className:"MJXf-box", forceChild:true
|
|
});
|
|
var child = span.firstChild;
|
|
var values = this.getValues("width","height","depth","lspace","voffset");
|
|
var dimen = this.PHTMLdimen(values.lspace);
|
|
var T = 0, B = 0, L = dimen.len, R = -dimen.len, V = 0;
|
|
if (values.width !== "") {
|
|
dimen = this.PHTMLdimen(values.width,"w",0);
|
|
if (dimen.pm) {R += dimen.len} else {span.style.width = PHTML.Em(dimen.len)}
|
|
}
|
|
if (values.height !== "") {
|
|
dimen = this.PHTMLdimen(values.height,"h",0);
|
|
if (!dimen.pm) T += -this.PHTMLbboxFor(0).h;
|
|
T += dimen.len;
|
|
}
|
|
if (values.depth !== "") {
|
|
dimen = this.PHTMLdimen(values.depth,"d",0);
|
|
if (!dimen.pm) {B += -this.PHTMLbboxFor(0).d; V += -dimen.len}
|
|
B += dimen.len;
|
|
}
|
|
if (values.voffset !== "") {
|
|
dimen = this.PHTMLdimen(values.voffset);
|
|
T -= dimen.len; B += dimen.len;
|
|
V += dimen.len;
|
|
}
|
|
if (T) child.style.marginTop = PHTML.Em(T);
|
|
if (B) child.style.marginBottom = PHTML.Em(B);
|
|
if (L) child.style.marginLeft = PHTML.Em(L);
|
|
if (R) child.style.marginRight = PHTML.Em(R);
|
|
if (V) span.style.verticalAlign = PHTML.Em(V);
|
|
return span;
|
|
},
|
|
PHTMLdimen: function (length,d,m) {
|
|
if (m == null) {m = -BIGDIMEN}
|
|
length = String(length);
|
|
var match = length.match(/width|height|depth/);
|
|
var size = (match ? this.PHTML[match[0].charAt(0)] : (d ? this.PHTML[d] : 0));
|
|
return {len: PHTML.length2em(length,size)||0, pm: !!length.match(/^[-+]/)};
|
|
}
|
|
});
|
|
|
|
MML.munderover.Augment({
|
|
toPreviewHTML: function (span) {
|
|
var values = this.getValues("displaystyle","accent","accentunder","align");
|
|
if (!values.displaystyle && this.data[this.base] != null &&
|
|
this.data[this.base].CoreMO().Get("movablelimits")) {
|
|
span = MML.msubsup.prototype.toPreviewHTML.call(this,span);
|
|
//
|
|
// Change class to msubsup for CSS rules.
|
|
// ### FIXME: should this be handled via adding another class instead?
|
|
//
|
|
span.className = span.className.replace(/munderover/,"msubsup");
|
|
return span;
|
|
}
|
|
span = this.PHTMLdefaultSpan(span,{childSpans:true, className:"", noBBox:true});
|
|
var obox = this.PHTMLbboxFor(this.over),
|
|
ubox = this.PHTMLbboxFor(this.under),
|
|
bbox = this.PHTMLbboxFor(this.base),
|
|
BBOX = this.PHTML, acc = obox.acc;
|
|
if (this.data[this.over]) {
|
|
span.lastChild.firstChild.style.marginLeft = obox.l =
|
|
span.lastChild.firstChild.style.marginRight = obox.r = 0;
|
|
var over = HTML.Element("span",{},[["span",{className:"MJXf-over"}]]);
|
|
over.firstChild.appendChild(span.lastChild);
|
|
if (span.childNodes.length > (this.data[this.under] ? 1 : 0))
|
|
over.firstChild.appendChild(span.firstChild);
|
|
this.data[this.over].PHTMLhandleScriptlevel(over.firstChild.firstChild);
|
|
if (acc != null) {
|
|
if (obox.vec) {
|
|
over.firstChild.firstChild.firstChild.style.fontSize = "60%";
|
|
obox.h *= .6; obox.d *= .6; obox.w *= .6;
|
|
}
|
|
acc = acc - obox.d + .1; if (bbox.t != null) {acc += bbox.t - bbox.h}
|
|
over.firstChild.firstChild.style.marginBottom = PHTML.Em(acc);
|
|
}
|
|
if (span.firstChild) {span.insertBefore(over,span.firstChild)}
|
|
else {span.appendChild(over)}
|
|
}
|
|
if (this.data[this.under]) {
|
|
span.lastChild.firstChild.style.marginLeft = ubox.l =
|
|
span.lastChild.firstChild.marginRight = ubox.r = 0;
|
|
this.data[this.under].PHTMLhandleScriptlevel(span.lastChild);
|
|
}
|
|
BBOX.w = Math.max(.8*obox.w,.8*ubox.w,bbox.w);
|
|
BBOX.h = .8*(obox.h+obox.d+(acc||0)) + bbox.h;
|
|
BBOX.d = bbox.d + .8*(ubox.h+ubox.d);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.msubsup.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span,{noBBox:true});
|
|
if (!this.data[this.base]) {
|
|
if (span.firstChild) {span.insertBefore(HTML.Element("span"),span.firstChild)}
|
|
else {span.appendChild(HTML.Element("span"))}
|
|
}
|
|
var base = this.data[this.base], sub = this.data[this.sub], sup = this.data[this.sup];
|
|
if (!base) base = {bbox: {h:.8, d:.2}};
|
|
span.firstChild.style.marginRight = ".05em";
|
|
var h = Math.max(.4,base.PHTML.h-.4),
|
|
d = Math.max(.2,base.PHTML.d+.1);
|
|
var bbox = this.PHTML;
|
|
if (sup && sub) {
|
|
var box = HTML.Element("span",{className:"MJXf-script-box", style:{
|
|
height: PHTML.Em(h+sup.PHTML.h*.8 + d+sub.PHTML.d*.8),
|
|
"vertical-align": PHTML.Em(-d-sub.PHTML.d*.8)
|
|
}},[
|
|
["span",{},[["span",{},[["span",{
|
|
style:{"margin-bottom":PHTML.Em(-(sup.PHTML.d-.05))}
|
|
}]]]]],
|
|
["span",{},[["span",{},[["span",{
|
|
style:{"margin-top":PHTML.Em(-(sup.PHTML.h-.05))}
|
|
}]]]]]
|
|
]);
|
|
sub.PHTMLhandleScriptlevel(box.firstChild);
|
|
sup.PHTMLhandleScriptlevel(box.lastChild);
|
|
box.firstChild.firstChild.firstChild.appendChild(span.lastChild);
|
|
box.lastChild.firstChild.firstChild.appendChild(span.lastChild);
|
|
span.appendChild(box);
|
|
bbox.h = Math.max(base.PHTML.h,sup.PHTML.h*.8+h);
|
|
bbox.d = Math.max(base.PHTML.d,sub.PHTML.d*.8+d);
|
|
bbox.w = base.PHTML.w + Math.max(sup.PHTML.w,sub.PHTML.w) + .07;
|
|
} else if (sup) {
|
|
span.lastChild.style.verticalAlign = PHTML.Em(h);
|
|
sup.PHTMLhandleScriptlevel(span.lastChild);
|
|
bbox.h = Math.max(base.PHTML.h,sup.PHTML.h*.8+h);
|
|
bbox.d = Math.max(base.PHTML.d,sup.PHTML.d*.8-h);
|
|
bbox.w = base.PHTML.w + sup.PHTML.w + .07;
|
|
} else if (sub) {
|
|
span.lastChild.style.verticalAlign = PHTML.Em(-d);
|
|
sub.PHTMLhandleScriptlevel(span.lastChild);
|
|
bbox.h = Math.max(base.PHTML.h,sub.PHTML.h*.8-d);
|
|
bbox.d = Math.max(base.PHTML.d,sub.PHTML.d*.8+d);
|
|
bbox.w = base.PHTML.w + sub.PHTML.w + .07;
|
|
}
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mfrac.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span,{
|
|
childSpans:true, className:"MJXf-box", forceChild:true, noBBox:true
|
|
});
|
|
var values = this.getValues("linethickness","displaystyle");
|
|
if (!values.displaystyle) {
|
|
if (this.data[0]) this.data[0].PHTMLhandleScriptlevel(span.firstChild);
|
|
if (this.data[1]) this.data[1].PHTMLhandleScriptlevel(span.lastChild);
|
|
}
|
|
var denom = HTML.Element("span",{className:"MJXf-box"},[
|
|
["span",{className:"MJXf-denom"},[ // inline-table
|
|
["span",{},[["span",{className:"MJXf-rule",style:{height:"1em"}}]]],
|
|
["span"] // spans are table-row
|
|
]]
|
|
]);
|
|
denom.firstChild.lastChild.appendChild(span.lastChild);
|
|
span.appendChild(denom);
|
|
var nbox = this.PHTMLbboxFor(0), dbox = this.PHTMLbboxFor(1), bbox = this.PHTML;
|
|
bbox.w = Math.max(nbox.w,dbox.w) * .8;
|
|
bbox.h = nbox.h+nbox.d + .1 + .25;
|
|
bbox.d = dbox.h+dbox.d - .25;
|
|
bbox.l = bbox.r = .125;
|
|
values.linethickness = Math.max(0,PHTML.length2em(values.linethickness||"0",0));
|
|
if (values.linethickness) {
|
|
var rule = denom.firstChild.firstChild.firstChild;
|
|
var t = PHTML.Em(values.linethickness);
|
|
rule.style.borderTop = "none";
|
|
rule.style.borderBottom = (values.linethickness < .15 ? "1px" : t)+" solid";
|
|
rule.style.margin = t+" 0";
|
|
t = values.linethickness;
|
|
denom.style.marginTop = PHTML.Em(3*t-1.2);
|
|
span.style.verticalAlign = PHTML.Em(1.5*t + .1);
|
|
bbox.h += 1.5*t - .1; bbox.d += 1.5*t;
|
|
} else {
|
|
denom.style.marginTop = "-.7em";
|
|
}
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.msqrt.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span,{
|
|
childSpans:true, className:"MJXf-box", forceChild:true, noBBox:true
|
|
});
|
|
this.PHTMLlayoutRoot(span,span.firstChild);
|
|
return span;
|
|
},
|
|
PHTMLlayoutRoot: function (span,base) {
|
|
var bbox = this.PHTMLbboxFor(0);
|
|
var scale = Math.ceil((bbox.h+bbox.d+.14)*100), t = PHTML.Em(14/scale);
|
|
var surd = HTML.Element("span",{className:"MJXf-surd"},[
|
|
["span",{style:{"font-size":scale+"%","margin-top":t}},["\u221A"]]
|
|
]);
|
|
var root = HTML.Element("span",{className:"MJXf-root"},[
|
|
["span",{className:"MJXf-rule",style:{"border-top":".08em solid"}}]
|
|
]);
|
|
var W = (1.2/2.2)*scale/100; // width-of-surd = (height/H-to-W-ratio)
|
|
if (scale > 150) {
|
|
var sX = Math.ceil(150/scale * 10);
|
|
surd.firstChild.className = "MJXf-right MJXf-scale"+sX;
|
|
surd.firstChild.style.marginLeft = PHTML.Em(W*(sX/10-1)/scale*100);
|
|
W = W*sX/10;
|
|
root.firstChild.style.borderTopWidth = PHTML.Em(.08/Math.sqrt(sX/10));
|
|
}
|
|
root.appendChild(base);
|
|
span.appendChild(surd);
|
|
span.appendChild(root);
|
|
this.PHTML.h = bbox.h + .18; this.PHTML.d = bbox.d;
|
|
this.PHTML.w = bbox.w + W;
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mroot.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span,{
|
|
childSpans:true, className:"MJXf-box", forceChild:true, noBBox:true
|
|
});
|
|
var rbox = this.PHTMLbboxFor(1), root = span.removeChild(span.lastChild);
|
|
var sqrt = this.PHTMLlayoutRoot(HTML.Element("span"),span.firstChild);
|
|
root.className = "MJXf-script"; // ### FIXME: should be scriptscript
|
|
var scale = parseInt(sqrt.firstChild.firstChild.style.fontSize);
|
|
var v = .55*(scale/120) + rbox.d*.8, r = -.6*(scale/120);
|
|
if (scale > 150) {r *= .95*Math.ceil(150/scale*10)/10}
|
|
root.style.marginRight = PHTML.Em(r); root.style.verticalAlign = PHTML.Em(v);
|
|
if (-r > rbox.w*.8) root.style.marginLeft = PHTML.Em(-r-rbox.w*.8); // ### depends on rbox.w
|
|
span.appendChild(root); span.appendChild(sqrt);
|
|
this.PHTML.w += Math.max(0,rbox.w*.8+r);
|
|
this.PHTML.h = Math.max(this.PHTML.h,rbox.h*.8+v);
|
|
return span;
|
|
},
|
|
PHTMLlayoutRoot: MML.msqrt.prototype.PHTMLlayoutRoot
|
|
});
|
|
|
|
MML.mfenced.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLcreateSpan(span);
|
|
this.PHTMLhandleStyle(span);
|
|
this.PHTMLhandleColor(span);
|
|
//
|
|
// Make row of open, data, sep, ... data, close
|
|
//
|
|
this.addFakeNodes();
|
|
this.PHTMLaddChild(span,"open",{});
|
|
for (var i = 0, m = this.data.length; i < m; i++) {
|
|
this.PHTMLaddChild(span,"sep"+i,{});
|
|
this.PHTMLaddChild(span,i,{});
|
|
}
|
|
this.PHTMLaddChild(span,"close",{});
|
|
//
|
|
// Check for streching the elements
|
|
//
|
|
var H = this.PHTML.h, D = this.PHTML.d;
|
|
this.PHTMLstretchChild("open",H,D);
|
|
for (i = 0, m = this.data.length; i < m; i++) {
|
|
this.PHTMLstretchChild("sep"+i,H,D);
|
|
this.PHTMLstretchChild(i,H,D);
|
|
}
|
|
this.PHTMLstretchChild("close",H,D);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mrow.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span);
|
|
var H = this.PHTML.h, D = this.PHTML.d;
|
|
for (var i = 0, m = this.data.length; i < m; i++) this.PHTMLstretchChild(i,H,D);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mstyle.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span);
|
|
this.PHTMLhandleScriptlevel(span);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.TeXAtom.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span);
|
|
// ### FIXME: handle TeX class?
|
|
span.className = "MJXf-mrow";
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mtable.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLdefaultSpan(span,{noBBox:true});
|
|
var values = this.getValues("columnalign","rowalign","columnspacing","rowspacing",
|
|
"columnwidth","equalcolumns","equalrows",
|
|
"columnlines","rowlines","frame","framespacing",
|
|
"align","width");
|
|
var SPLIT = MathJax.Hub.SplitList, i, m, j, n;
|
|
var CSPACE = SPLIT(values.columnspacing),
|
|
RSPACE = SPLIT(values.rowspacing),
|
|
CALIGN = SPLIT(values.columnalign),
|
|
RALIGN = SPLIT(values.rowalign);
|
|
for (i = 0, m = CSPACE.length; i < m; i++) {CSPACE[i] = PHTML.length2em(CSPACE[i])}
|
|
for (i = 0, m = RSPACE.length; i < m; i++) {RSPACE[i] = PHTML.length2em(RSPACE[i])}
|
|
|
|
var table = HTML.Element("span");
|
|
while (span.firstChild) table.appendChild(span.firstChild);
|
|
span.appendChild(table);
|
|
var H = 0, W = 0;
|
|
for (i = 0, m = this.data.length; i < m; i++) {
|
|
var row = this.data[i];
|
|
if (row) {
|
|
var rspace = PHTML.arrayEntry(RSPACE,i-1), ralign = PHTML.arrayEntry(RALIGN,i);
|
|
var rbox = row.PHTML, rspan = row.PHTMLspanElement();
|
|
rspan.style.verticalAlign = ralign;
|
|
var k = (row.type === "mlabeledtr" ? 1 : 0);
|
|
for (j = 0, n = row.data.length; j < n-k; j++) {
|
|
var cell = row.data[j+k];
|
|
if (cell) {
|
|
var cspace = PHTML.arrayEntry(CSPACE,j-1), calign = PHTML.arrayEntry(CALIGN,j);
|
|
var cspan = cell.PHTMLspanElement();
|
|
if (j) {rbox.w += cspace; cspan.style.paddingLeft = PHTML.Em(cspace)}
|
|
if (i) cspan.style.paddingTop = PHTML.Em(rspace);
|
|
cspan.style.textAlign = calign;
|
|
}
|
|
}
|
|
H += rbox.h + rbox.d; if (i) {H += rspace}
|
|
if (rbox.w > W) W = rbox.w;
|
|
}
|
|
}
|
|
var bbox = this.PHTML;
|
|
bbox.w = W; bbox.h = H/2 + .25; bbox.d = H/2 - .25;
|
|
bbox.l = bbox.r = .125;
|
|
return span;
|
|
}
|
|
});
|
|
MML.mlabeledtr.Augment({
|
|
PHTMLdefaultSpan: function (span,options) {
|
|
if (!options) options = {};
|
|
span = this.PHTMLcreateSpan(span);
|
|
this.PHTMLhandleStyle(span);
|
|
this.PHTMLhandleColor(span);
|
|
if (this.isToken) this.PHTMLhandleToken(span);
|
|
// skip label for now
|
|
for (var i = 1, m = this.data.length; i < m; i++) this.PHTMLaddChild(span,i,options);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.semantics.Augment({
|
|
toPreviewHTML: function (span) {
|
|
span = this.PHTMLcreateSpan(span);
|
|
if (this.data[0]) {
|
|
this.data[0].toPreviewHTML(span);
|
|
MathJax.Hub.Insert(this.data[0].PHTML||{},this.PHTML);
|
|
}
|
|
return span;
|
|
}
|
|
});
|
|
MML.annotation.Augment({toPreviewHTML: function(span) {}});
|
|
MML["annotation-xml"].Augment({toPreviewHTML: function(span) {}});
|
|
|
|
//
|
|
// Loading isn't complete until the element jax is modified,
|
|
// but can't call loadComplete within the callback for "mml Jax Ready"
|
|
// (it would call PreviewHTML's Require routine, asking for the mml jax again)
|
|
// so wait until after the mml jax has finished processing.
|
|
//
|
|
// We also need to wait for the onload handler to run, since the loadComplete
|
|
// will call Config and Startup, which need to modify the body.
|
|
//
|
|
MathJax.Hub.Register.StartupHook("onLoad",function () {
|
|
setTimeout(MathJax.Callback(["loadComplete",PHTML,"jax.js"]),0);
|
|
});
|
|
});
|
|
|
|
MathJax.Hub.Register.StartupHook("End Cookie", function () {
|
|
if (HUB.config.menuSettings.zoom !== "None")
|
|
{AJAX.Require("[MathJax]/extensions/MathZoom.js")}
|
|
});
|
|
|
|
})(MathJax.Ajax,MathJax.Hub,MathJax.HTML,MathJax.OutputJax.PreviewHTML);
|