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/*
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LaTeXMathML.js
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==============
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This file, in this form, is due to Douglas Woodall, June 2006.
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It contains JavaScript functions to convert (most simple) LaTeX
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math notation to Presentation MathML. It was obtained by
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downloading the file ASCIIMathML.js from
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http://www1.chapman.edu/~jipsen/mathml/asciimathdownload/
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and modifying it so that it carries out ONLY those conversions
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that would be carried out in LaTeX. A description of the original
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file, with examples, can be found at
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www1.chapman.edu/~jipsen/mathml/asciimath.html
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ASCIIMathML: Math on the web for everyone
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Here is the header notice from the original file:
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ASCIIMathML.js
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==============
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This file contains JavaScript functions to convert ASCII math notation
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to Presentation MathML. The conversion is done while the (X)HTML page
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loads, and should work with Firefox/Mozilla/Netscape 7+ and Internet
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Explorer 6+MathPlayer (http://www.dessci.com/en/products/mathplayer/).
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Just add the next line to your (X)HTML page with this file in the same folder:
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<script type="text/javascript" src="ASCIIMathML.js"></script>
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This is a convenient and inexpensive solution for authoring MathML.
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Version 1.4.7 Dec 15, 2005, (c) Peter Jipsen http://www.chapman.edu/~jipsen
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Latest version at http://www.chapman.edu/~jipsen/mathml/ASCIIMathML.js
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For changes see http://www.chapman.edu/~jipsen/mathml/asciimathchanges.txt
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If you use it on a webpage, please send the URL to jipsen@chapman.edu
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License (at http://www.gnu.org/copyleft/gpl.html)
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for more details.
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LaTeXMathML.js (ctd)
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==============
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The instructions for use are the same as for the original
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ASCIIMathML.js, except that of course the line you add to your
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file should be
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<script type="text/javascript" src="LaTeXMathML.js"></script>
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Or use absolute path names if the file is not in the same folder
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as your (X)HTML page.
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*/
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var checkForMathML = true; // check if browser can display MathML
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var notifyIfNoMathML = true; // display note if no MathML capability
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var alertIfNoMathML = false; // show alert box if no MathML capability
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// was "red":
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var mathcolor = ""; // change it to "" (to inherit) or any other color
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// was "serif":
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var mathfontfamily = ""; // change to "" to inherit (works in IE)
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// or another family (e.g. "arial")
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var showasciiformulaonhover = true; // helps students learn ASCIIMath
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/*
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// Commented out by DRW -- not now used -- see DELIMITERS (twice) near the end
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var displaystyle = false; // puts limits above and below large operators
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var decimalsign = "."; // change to "," if you like, beware of `(1,2)`!
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var AMdelimiter1 = "`", AMescape1 = "\\\\`"; // can use other characters
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var AMdelimiter2 = "$", AMescape2 = "\\\\\\$", AMdelimiter2regexp = "\\$";
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var doubleblankmathdelimiter = false; // if true, x+1 is equal to `x+1`
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// for IE this works only in <!-- -->
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//var separatetokens;// has been removed (email me if this is a problem)
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*/
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var isIE = document.createElementNS==null;
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if (document.getElementById==null)
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alert("This webpage requires a recent browser such as\
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\nMozilla/Netscape 7+ or Internet Explorer 6+MathPlayer")
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// all further global variables start with "AM"
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function AMcreateElementXHTML(t) {
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if (isIE) return document.createElement(t);
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else return document.createElementNS("http://www.w3.org/1999/xhtml",t);
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}
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function AMnoMathMLNote() {
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var nd = AMcreateElementXHTML("h3");
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nd.setAttribute("align","center")
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nd.appendChild(AMcreateElementXHTML("p"));
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nd.appendChild(document.createTextNode("To view the "));
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var an = AMcreateElementXHTML("a");
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an.appendChild(document.createTextNode("LaTeXMathML"));
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an.setAttribute("href","http://www.maths.nott.ac.uk/personal/drw/lm.html");
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nd.appendChild(an);
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nd.appendChild(document.createTextNode(" notation use Internet Explorer 6+"));
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an = AMcreateElementXHTML("a");
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an.appendChild(document.createTextNode("MathPlayer"));
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an.setAttribute("href","http://www.dessci.com/en/products/mathplayer/download.htm");
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nd.appendChild(an);
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nd.appendChild(document.createTextNode(" or Netscape/Mozilla/Firefox"));
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nd.appendChild(AMcreateElementXHTML("p"));
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return nd;
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}
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function AMisMathMLavailable() {
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if (navigator.appName.slice(0,8)=="Netscape")
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if (navigator.appVersion.slice(0,1)>="5") return null;
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else return AMnoMathMLNote();
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else if (navigator.appName.slice(0,9)=="Microsoft")
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try {
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var ActiveX = new ActiveXObject("MathPlayer.Factory.1");
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return null;
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} catch (e) {
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return AMnoMathMLNote();
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}
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else return AMnoMathMLNote();
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}
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// character lists for Mozilla/Netscape fonts
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var AMcal = [0xEF35,0x212C,0xEF36,0xEF37,0x2130,0x2131,0xEF38,0x210B,0x2110,0xEF39,0xEF3A,0x2112,0x2133,0xEF3B,0xEF3C,0xEF3D,0xEF3E,0x211B,0xEF3F,0xEF40,0xEF41,0xEF42,0xEF43,0xEF44,0xEF45,0xEF46];
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var AMfrk = [0xEF5D,0xEF5E,0x212D,0xEF5F,0xEF60,0xEF61,0xEF62,0x210C,0x2111,0xEF63,0xEF64,0xEF65,0xEF66,0xEF67,0xEF68,0xEF69,0xEF6A,0x211C,0xEF6B,0xEF6C,0xEF6D,0xEF6E,0xEF6F,0xEF70,0xEF71,0x2128];
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var AMbbb = [0xEF8C,0xEF8D,0x2102,0xEF8E,0xEF8F,0xEF90,0xEF91,0x210D,0xEF92,0xEF93,0xEF94,0xEF95,0xEF96,0x2115,0xEF97,0x2119,0x211A,0x211D,0xEF98,0xEF99,0xEF9A,0xEF9B,0xEF9C,0xEF9D,0xEF9E,0x2124];
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var CONST = 0, UNARY = 1, BINARY = 2, INFIX = 3, LEFTBRACKET = 4,
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RIGHTBRACKET = 5, SPACE = 6, UNDEROVER = 7, DEFINITION = 8,
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TEXT = 9, BIG = 10, LONG = 11, STRETCHY = 12, MATRIX = 13; // token types
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var AMsqrt = {input:"\\sqrt", tag:"msqrt", output:"sqrt", ttype:UNARY},
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AMroot = {input:"\\root", tag:"mroot", output:"root", ttype:BINARY},
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AMfrac = {input:"\\frac", tag:"mfrac", output:"/", ttype:BINARY},
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AMover = {input:"\\stackrel", tag:"mover", output:"stackrel", ttype:BINARY},
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AMatop = {input:"\\atop", tag:"mfrac", output:"", ttype:INFIX},
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AMchoose = {input:"\\choose", tag:"mfrac", output:"", ttype:INFIX},
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AMsub = {input:"_", tag:"msub", output:"_", ttype:INFIX},
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AMsup = {input:"^", tag:"msup", output:"^", ttype:INFIX},
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AMtext = {input:"\\mathrm", tag:"mtext", output:"text", ttype:TEXT},
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AMmbox = {input:"\\mbox", tag:"mtext", output:"mbox", ttype:TEXT};
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// Commented out by DRW to prevent 1/2 turning into a 2-line fraction
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// AMdiv = {input:"/", tag:"mfrac", output:"/", ttype:INFIX},
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// Commented out by DRW so that " prints literally in equations
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// AMquote = {input:"\"", tag:"mtext", output:"mbox", ttype:TEXT};
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var AMsymbols = [
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//Greek letters
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{input:"\\alpha", tag:"mi", output:"\u03B1", ttype:CONST},
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{input:"\\beta", tag:"mi", output:"\u03B2", ttype:CONST},
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{input:"\\gamma", tag:"mi", output:"\u03B3", ttype:CONST},
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{input:"\\delta", tag:"mi", output:"\u03B4", ttype:CONST},
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{input:"\\epsilon", tag:"mi", output:"\u03B5", ttype:CONST},
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{input:"\\varepsilon", tag:"mi", output:"\u025B", ttype:CONST},
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{input:"\\zeta", tag:"mi", output:"\u03B6", ttype:CONST},
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{input:"\\eta", tag:"mi", output:"\u03B7", ttype:CONST},
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{input:"\\theta", tag:"mi", output:"\u03B8", ttype:CONST},
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{input:"\\vartheta", tag:"mi", output:"\u03D1", ttype:CONST},
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{input:"\\iota", tag:"mi", output:"\u03B9", ttype:CONST},
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{input:"\\kappa", tag:"mi", output:"\u03BA", ttype:CONST},
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{input:"\\lambda", tag:"mi", output:"\u03BB", ttype:CONST},
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{input:"\\mu", tag:"mi", output:"\u03BC", ttype:CONST},
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{input:"\\nu", tag:"mi", output:"\u03BD", ttype:CONST},
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{input:"\\xi", tag:"mi", output:"\u03BE", ttype:CONST},
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{input:"\\pi", tag:"mi", output:"\u03C0", ttype:CONST},
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{input:"\\varpi", tag:"mi", output:"\u03D6", ttype:CONST},
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{input:"\\rho", tag:"mi", output:"\u03C1", ttype:CONST},
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{input:"\\varrho", tag:"mi", output:"\u03F1", ttype:CONST},
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{input:"\\varsigma", tag:"mi", output:"\u03C2", ttype:CONST},
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{input:"\\sigma", tag:"mi", output:"\u03C3", ttype:CONST},
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{input:"\\tau", tag:"mi", output:"\u03C4", ttype:CONST},
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{input:"\\upsilon", tag:"mi", output:"\u03C5", ttype:CONST},
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{input:"\\phi", tag:"mi", output:"\u03C6", ttype:CONST},
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{input:"\\varphi", tag:"mi", output:"\u03D5", ttype:CONST},
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{input:"\\chi", tag:"mi", output:"\u03C7", ttype:CONST},
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{input:"\\psi", tag:"mi", output:"\u03C8", ttype:CONST},
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{input:"\\omega", tag:"mi", output:"\u03C9", ttype:CONST},
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{input:"\\Gamma", tag:"mo", output:"\u0393", ttype:CONST},
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{input:"\\Delta", tag:"mo", output:"\u0394", ttype:CONST},
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{input:"\\Theta", tag:"mo", output:"\u0398", ttype:CONST},
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{input:"\\Lambda", tag:"mo", output:"\u039B", ttype:CONST},
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{input:"\\Xi", tag:"mo", output:"\u039E", ttype:CONST},
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{input:"\\Pi", tag:"mo", output:"\u03A0", ttype:CONST},
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{input:"\\Sigma", tag:"mo", output:"\u03A3", ttype:CONST},
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{input:"\\Upsilon", tag:"mo", output:"\u03A5", ttype:CONST},
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{input:"\\Phi", tag:"mo", output:"\u03A6", ttype:CONST},
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{input:"\\Psi", tag:"mo", output:"\u03A8", ttype:CONST},
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{input:"\\Omega", tag:"mo", output:"\u03A9", ttype:CONST},
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//fractions
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{input:"\\frac12", tag:"mo", output:"\u00BD", ttype:CONST},
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{input:"\\frac14", tag:"mo", output:"\u00BC", ttype:CONST},
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{input:"\\frac34", tag:"mo", output:"\u00BE", ttype:CONST},
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{input:"\\frac13", tag:"mo", output:"\u2153", ttype:CONST},
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{input:"\\frac23", tag:"mo", output:"\u2154", ttype:CONST},
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{input:"\\frac15", tag:"mo", output:"\u2155", ttype:CONST},
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{input:"\\frac25", tag:"mo", output:"\u2156", ttype:CONST},
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{input:"\\frac35", tag:"mo", output:"\u2157", ttype:CONST},
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{input:"\\frac45", tag:"mo", output:"\u2158", ttype:CONST},
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{input:"\\frac16", tag:"mo", output:"\u2159", ttype:CONST},
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{input:"\\frac56", tag:"mo", output:"\u215A", ttype:CONST},
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{input:"\\frac18", tag:"mo", output:"\u215B", ttype:CONST},
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{input:"\\frac38", tag:"mo", output:"\u215C", ttype:CONST},
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{input:"\\frac58", tag:"mo", output:"\u215D", ttype:CONST},
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{input:"\\frac78", tag:"mo", output:"\u215E", ttype:CONST},
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//binary operation symbols
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{input:"\\pm", tag:"mo", output:"\u00B1", ttype:CONST},
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{input:"\\mp", tag:"mo", output:"\u2213", ttype:CONST},
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{input:"\\triangleleft",tag:"mo", output:"\u22B2", ttype:CONST},
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{input:"\\triangleright",tag:"mo",output:"\u22B3", ttype:CONST},
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{input:"\\cdot", tag:"mo", output:"\u22C5", ttype:CONST},
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{input:"\\star", tag:"mo", output:"\u22C6", ttype:CONST},
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{input:"\\ast", tag:"mo", output:"\u002A", ttype:CONST},
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{input:"\\times", tag:"mo", output:"\u00D7", ttype:CONST},
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{input:"\\div", tag:"mo", output:"\u00F7", ttype:CONST},
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{input:"\\circ", tag:"mo", output:"\u2218", ttype:CONST},
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//{input:"\\bullet", tag:"mo", output:"\u2219", ttype:CONST},
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{input:"\\bullet", tag:"mo", output:"\u2022", ttype:CONST},
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{input:"\\oplus", tag:"mo", output:"\u2295", ttype:CONST},
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{input:"\\ominus", tag:"mo", output:"\u2296", ttype:CONST},
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{input:"\\otimes", tag:"mo", output:"\u2297", ttype:CONST},
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{input:"\\bigcirc", tag:"mo", output:"\u25CB", ttype:CONST},
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{input:"\\oslash", tag:"mo", output:"\u2298", ttype:CONST},
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{input:"\\odot", tag:"mo", output:"\u2299", ttype:CONST},
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{input:"\\land", tag:"mo", output:"\u2227", ttype:CONST},
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{input:"\\wedge", tag:"mo", output:"\u2227", ttype:CONST},
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{input:"\\lor", tag:"mo", output:"\u2228", ttype:CONST},
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{input:"\\vee", tag:"mo", output:"\u2228", ttype:CONST},
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{input:"\\cap", tag:"mo", output:"\u2229", ttype:CONST},
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{input:"\\cup", tag:"mo", output:"\u222A", ttype:CONST},
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{input:"\\sqcap", tag:"mo", output:"\u2293", ttype:CONST},
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{input:"\\sqcup", tag:"mo", output:"\u2294", ttype:CONST},
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{input:"\\uplus", tag:"mo", output:"\u228E", ttype:CONST},
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{input:"\\amalg", tag:"mo", output:"\u2210", ttype:CONST},
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{input:"\\bigtriangleup",tag:"mo",output:"\u25B3", ttype:CONST},
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{input:"\\bigtriangledown",tag:"mo",output:"\u25BD", ttype:CONST},
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{input:"\\dag", tag:"mo", output:"\u2020", ttype:CONST},
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{input:"\\dagger", tag:"mo", output:"\u2020", ttype:CONST},
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{input:"\\ddag", tag:"mo", output:"\u2021", ttype:CONST},
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{input:"\\ddagger", tag:"mo", output:"\u2021", ttype:CONST},
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{input:"\\lhd", tag:"mo", output:"\u22B2", ttype:CONST},
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{input:"\\rhd", tag:"mo", output:"\u22B3", ttype:CONST},
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{input:"\\unlhd", tag:"mo", output:"\u22B4", ttype:CONST},
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{input:"\\unrhd", tag:"mo", output:"\u22B5", ttype:CONST},
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//BIG Operators
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{input:"\\sum", tag:"mo", output:"\u2211", ttype:UNDEROVER},
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{input:"\\prod", tag:"mo", output:"\u220F", ttype:UNDEROVER},
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{input:"\\bigcap", tag:"mo", output:"\u22C2", ttype:UNDEROVER},
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{input:"\\bigcup", tag:"mo", output:"\u22C3", ttype:UNDEROVER},
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{input:"\\bigwedge", tag:"mo", output:"\u22C0", ttype:UNDEROVER},
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{input:"\\bigvee", tag:"mo", output:"\u22C1", ttype:UNDEROVER},
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{input:"\\bigsqcap", tag:"mo", output:"\u2A05", ttype:UNDEROVER},
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{input:"\\bigsqcup", tag:"mo", output:"\u2A06", ttype:UNDEROVER},
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{input:"\\coprod", tag:"mo", output:"\u2210", ttype:UNDEROVER},
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{input:"\\bigoplus", tag:"mo", output:"\u2A01", ttype:UNDEROVER},
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{input:"\\bigotimes", tag:"mo", output:"\u2A02", ttype:UNDEROVER},
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{input:"\\bigodot", tag:"mo", output:"\u2A00", ttype:UNDEROVER},
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259
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{input:"\\biguplus", tag:"mo", output:"\u2A04", ttype:UNDEROVER},
|
|
260
|
{input:"\\int", tag:"mo", output:"\u222B", ttype:CONST},
|
|
261
|
{input:"\\oint", tag:"mo", output:"\u222E", ttype:CONST},
|
|
262
|
|
|
263
|
//binary relation symbols
|
|
264
|
{input:":=", tag:"mo", output:":=", ttype:CONST},
|
|
265
|
{input:"\\lt", tag:"mo", output:"<", ttype:CONST},
|
|
266
|
{input:"\\gt", tag:"mo", output:">", ttype:CONST},
|
|
267
|
{input:"\\ne", tag:"mo", output:"\u2260", ttype:CONST},
|
|
268
|
{input:"\\neq", tag:"mo", output:"\u2260", ttype:CONST},
|
|
269
|
{input:"\\le", tag:"mo", output:"\u2264", ttype:CONST},
|
|
270
|
{input:"\\leq", tag:"mo", output:"\u2264", ttype:CONST},
|
|
271
|
{input:"\\leqslant", tag:"mo", output:"\u2264", ttype:CONST},
|
|
272
|
{input:"\\ge", tag:"mo", output:"\u2265", ttype:CONST},
|
|
273
|
{input:"\\geq", tag:"mo", output:"\u2265", ttype:CONST},
|
|
274
|
{input:"\\geqslant", tag:"mo", output:"\u2265", ttype:CONST},
|
|
275
|
{input:"\\equiv", tag:"mo", output:"\u2261", ttype:CONST},
|
|
276
|
{input:"\\ll", tag:"mo", output:"\u226A", ttype:CONST},
|
|
277
|
{input:"\\gg", tag:"mo", output:"\u226B", ttype:CONST},
|
|
278
|
{input:"\\doteq", tag:"mo", output:"\u2250", ttype:CONST},
|
|
279
|
{input:"\\prec", tag:"mo", output:"\u227A", ttype:CONST},
|
|
280
|
{input:"\\succ", tag:"mo", output:"\u227B", ttype:CONST},
|
|
281
|
{input:"\\preceq", tag:"mo", output:"\u227C", ttype:CONST},
|
|
282
|
{input:"\\succeq", tag:"mo", output:"\u227D", ttype:CONST},
|
|
283
|
{input:"\\subset", tag:"mo", output:"\u2282", ttype:CONST},
|
|
284
|
{input:"\\supset", tag:"mo", output:"\u2283", ttype:CONST},
|
|
285
|
{input:"\\subseteq", tag:"mo", output:"\u2286", ttype:CONST},
|
|
286
|
{input:"\\supseteq", tag:"mo", output:"\u2287", ttype:CONST},
|
|
287
|
{input:"\\sqsubset", tag:"mo", output:"\u228F", ttype:CONST},
|
|
288
|
{input:"\\sqsupset", tag:"mo", output:"\u2290", ttype:CONST},
|
|
289
|
{input:"\\sqsubseteq", tag:"mo", output:"\u2291", ttype:CONST},
|
|
290
|
{input:"\\sqsupseteq", tag:"mo", output:"\u2292", ttype:CONST},
|
|
291
|
{input:"\\sim", tag:"mo", output:"\u223C", ttype:CONST},
|
|
292
|
{input:"\\simeq", tag:"mo", output:"\u2243", ttype:CONST},
|
|
293
|
{input:"\\approx", tag:"mo", output:"\u2248", ttype:CONST},
|
|
294
|
{input:"\\cong", tag:"mo", output:"\u2245", ttype:CONST},
|
|
295
|
{input:"\\Join", tag:"mo", output:"\u22C8", ttype:CONST},
|
|
296
|
{input:"\\bowtie", tag:"mo", output:"\u22C8", ttype:CONST},
|
|
297
|
{input:"\\in", tag:"mo", output:"\u2208", ttype:CONST},
|
|
298
|
{input:"\\ni", tag:"mo", output:"\u220B", ttype:CONST},
|
|
299
|
{input:"\\owns", tag:"mo", output:"\u220B", ttype:CONST},
|
|
300
|
{input:"\\propto", tag:"mo", output:"\u221D", ttype:CONST},
|
|
301
|
{input:"\\vdash", tag:"mo", output:"\u22A2", ttype:CONST},
|
|
302
|
{input:"\\dashv", tag:"mo", output:"\u22A3", ttype:CONST},
|
|
303
|
{input:"\\models", tag:"mo", output:"\u22A8", ttype:CONST},
|
|
304
|
{input:"\\perp", tag:"mo", output:"\u22A5", ttype:CONST},
|
|
305
|
{input:"\\smile", tag:"mo", output:"\u2323", ttype:CONST},
|
|
306
|
{input:"\\frown", tag:"mo", output:"\u2322", ttype:CONST},
|
|
307
|
{input:"\\asymp", tag:"mo", output:"\u224D", ttype:CONST},
|
|
308
|
{input:"\\notin", tag:"mo", output:"\u2209", ttype:CONST},
|
|
309
|
|
|
310
|
//matrices
|
|
311
|
{input:"\\begin{eqnarray}", output:"X", ttype:MATRIX, invisible:true},
|
|
312
|
{input:"\\begin{array}", output:"X", ttype:MATRIX, invisible:true},
|
|
313
|
{input:"\\\\", output:"}&{", ttype:DEFINITION},
|
|
314
|
{input:"\\end{eqnarray}", output:"}}", ttype:DEFINITION},
|
|
315
|
{input:"\\end{array}", output:"}}", ttype:DEFINITION},
|
|
316
|
|
|
317
|
//grouping and literal brackets -- ieval is for IE
|
|
318
|
{input:"\\big", tag:"mo", output:"X", atval:"1.2", ieval:"2.2", ttype:BIG},
|
|
319
|
{input:"\\Big", tag:"mo", output:"X", atval:"1.6", ieval:"2.6", ttype:BIG},
|
|
320
|
{input:"\\bigg", tag:"mo", output:"X", atval:"2.2", ieval:"3.2", ttype:BIG},
|
|
321
|
{input:"\\Bigg", tag:"mo", output:"X", atval:"2.9", ieval:"3.9", ttype:BIG},
|
|
322
|
{input:"\\left", tag:"mo", output:"X", ttype:LEFTBRACKET},
|
|
323
|
{input:"\\right", tag:"mo", output:"X", ttype:RIGHTBRACKET},
|
|
324
|
{input:"{", output:"{", ttype:LEFTBRACKET, invisible:true},
|
|
325
|
{input:"}", output:"}", ttype:RIGHTBRACKET, invisible:true},
|
|
326
|
|
|
327
|
{input:"(", tag:"mo", output:"(", atval:"1", ttype:STRETCHY},
|
|
328
|
{input:"[", tag:"mo", output:"[", atval:"1", ttype:STRETCHY},
|
|
329
|
{input:"\\lbrack", tag:"mo", output:"[", atval:"1", ttype:STRETCHY},
|
|
330
|
{input:"\\{", tag:"mo", output:"{", atval:"1", ttype:STRETCHY},
|
|
331
|
{input:"\\lbrace", tag:"mo", output:"{", atval:"1", ttype:STRETCHY},
|
|
332
|
{input:"\\langle", tag:"mo", output:"\u2329", atval:"1", ttype:STRETCHY},
|
|
333
|
{input:"\\lfloor", tag:"mo", output:"\u230A", atval:"1", ttype:STRETCHY},
|
|
334
|
{input:"\\lceil", tag:"mo", output:"\u2308", atval:"1", ttype:STRETCHY},
|
|
335
|
|
|
336
|
// rtag:"mi" causes space to be inserted before a following sin, cos, etc.
|
|
337
|
// (see function AMparseExpr() )
|
|
338
|
{input:")", tag:"mo",output:")", rtag:"mi",atval:"1",ttype:STRETCHY},
|
|
339
|
{input:"]", tag:"mo",output:"]", rtag:"mi",atval:"1",ttype:STRETCHY},
|
|
340
|
{input:"\\rbrack",tag:"mo",output:"]", rtag:"mi",atval:"1",ttype:STRETCHY},
|
|
341
|
{input:"\\}", tag:"mo",output:"}", rtag:"mi",atval:"1",ttype:STRETCHY},
|
|
342
|
{input:"\\rbrace",tag:"mo",output:"}", rtag:"mi",atval:"1",ttype:STRETCHY},
|
|
343
|
{input:"\\rangle",tag:"mo",output:"\u232A", rtag:"mi",atval:"1",ttype:STRETCHY},
|
|
344
|
{input:"\\rfloor",tag:"mo",output:"\u230B", rtag:"mi",atval:"1",ttype:STRETCHY},
|
|
345
|
{input:"\\rceil", tag:"mo",output:"\u2309", rtag:"mi",atval:"1",ttype:STRETCHY},
|
|
346
|
|
|
347
|
// "|", "\\|", "\\vert" and "\\Vert" modified later: lspace = rspace = 0em
|
|
348
|
{input:"|", tag:"mo", output:"\u2223", atval:"1", ttype:STRETCHY},
|
|
349
|
{input:"\\|", tag:"mo", output:"\u2225", atval:"1", ttype:STRETCHY},
|
|
350
|
{input:"\\vert", tag:"mo", output:"\u2223", atval:"1", ttype:STRETCHY},
|
|
351
|
{input:"\\Vert", tag:"mo", output:"\u2225", atval:"1", ttype:STRETCHY},
|
|
352
|
{input:"\\mid", tag:"mo", output:"\u2223", atval:"1", ttype:STRETCHY},
|
|
353
|
{input:"\\parallel", tag:"mo", output:"\u2225", atval:"1", ttype:STRETCHY},
|
|
354
|
{input:"/", tag:"mo", output:"/", atval:"1.01", ttype:STRETCHY},
|
|
355
|
{input:"\\backslash", tag:"mo", output:"\u2216", atval:"1", ttype:STRETCHY},
|
|
356
|
{input:"\\setminus", tag:"mo", output:"\\", ttype:CONST},
|
|
357
|
|
|
358
|
//miscellaneous symbols
|
|
359
|
{input:"\\!", tag:"mspace", atname:"width", atval:"-0.167em", ttype:SPACE},
|
|
360
|
{input:"\\,", tag:"mspace", atname:"width", atval:"0.167em", ttype:SPACE},
|
|
361
|
{input:"\\>", tag:"mspace", atname:"width", atval:"0.222em", ttype:SPACE},
|
|
362
|
{input:"\\:", tag:"mspace", atname:"width", atval:"0.222em", ttype:SPACE},
|
|
363
|
{input:"\\;", tag:"mspace", atname:"width", atval:"0.278em", ttype:SPACE},
|
|
364
|
{input:"~", tag:"mspace", atname:"width", atval:"0.333em", ttype:SPACE},
|
|
365
|
{input:"\\quad", tag:"mspace", atname:"width", atval:"1em", ttype:SPACE},
|
|
366
|
{input:"\\qquad", tag:"mspace", atname:"width", atval:"2em", ttype:SPACE},
|
|
367
|
//{input:"{}", tag:"mo", output:"\u200B", ttype:CONST}, // zero-width
|
|
368
|
{input:"\\prime", tag:"mo", output:"\u2032", ttype:CONST},
|
|
369
|
{input:"'", tag:"mo", output:"\u02B9", ttype:CONST},
|
|
370
|
{input:"''", tag:"mo", output:"\u02BA", ttype:CONST},
|
|
371
|
{input:"'''", tag:"mo", output:"\u2034", ttype:CONST},
|
|
372
|
{input:"''''", tag:"mo", output:"\u2057", ttype:CONST},
|
|
373
|
{input:"\\ldots", tag:"mo", output:"\u2026", ttype:CONST},
|
|
374
|
{input:"\\cdots", tag:"mo", output:"\u22EF", ttype:CONST},
|
|
375
|
{input:"\\vdots", tag:"mo", output:"\u22EE", ttype:CONST},
|
|
376
|
{input:"\\ddots", tag:"mo", output:"\u22F1", ttype:CONST},
|
|
377
|
{input:"\\forall", tag:"mo", output:"\u2200", ttype:CONST},
|
|
378
|
{input:"\\exists", tag:"mo", output:"\u2203", ttype:CONST},
|
|
379
|
{input:"\\Re", tag:"mo", output:"\u211C", ttype:CONST},
|
|
380
|
{input:"\\Im", tag:"mo", output:"\u2111", ttype:CONST},
|
|
381
|
{input:"\\aleph", tag:"mo", output:"\u2135", ttype:CONST},
|
|
382
|
{input:"\\hbar", tag:"mo", output:"\u210F", ttype:CONST},
|
|
383
|
{input:"\\ell", tag:"mo", output:"\u2113", ttype:CONST},
|
|
384
|
{input:"\\wp", tag:"mo", output:"\u2118", ttype:CONST},
|
|
385
|
{input:"\\emptyset", tag:"mo", output:"\u2205", ttype:CONST},
|
|
386
|
{input:"\\infty", tag:"mo", output:"\u221E", ttype:CONST},
|
|
387
|
{input:"\\surd", tag:"mo", output:"\\sqrt{}", ttype:DEFINITION},
|
|
388
|
{input:"\\partial", tag:"mo", output:"\u2202", ttype:CONST},
|
|
389
|
{input:"\\nabla", tag:"mo", output:"\u2207", ttype:CONST},
|
|
390
|
{input:"\\triangle", tag:"mo", output:"\u25B3", ttype:CONST},
|
|
391
|
{input:"\\therefore", tag:"mo", output:"\u2234", ttype:CONST},
|
|
392
|
{input:"\\angle", tag:"mo", output:"\u2220", ttype:CONST},
|
|
393
|
//{input:"\\\\ ", tag:"mo", output:"\u00A0", ttype:CONST},
|
|
394
|
{input:"\\diamond", tag:"mo", output:"\u22C4", ttype:CONST},
|
|
395
|
//{input:"\\Diamond", tag:"mo", output:"\u25CA", ttype:CONST},
|
|
396
|
{input:"\\Diamond", tag:"mo", output:"\u25C7", ttype:CONST},
|
|
397
|
{input:"\\neg", tag:"mo", output:"\u00AC", ttype:CONST},
|
|
398
|
{input:"\\lnot", tag:"mo", output:"\u00AC", ttype:CONST},
|
|
399
|
{input:"\\bot", tag:"mo", output:"\u22A5", ttype:CONST},
|
|
400
|
{input:"\\top", tag:"mo", output:"\u22A4", ttype:CONST},
|
|
401
|
{input:"\\square", tag:"mo", output:"\u25AB", ttype:CONST},
|
|
402
|
{input:"\\Box", tag:"mo", output:"\u25A1", ttype:CONST},
|
|
403
|
{input:"\\wr", tag:"mo", output:"\u2240", ttype:CONST},
|
|
404
|
|
|
405
|
//standard functions
|
|
406
|
//Note UNDEROVER *must* have tag:"mo" to work properly
|
|
407
|
{input:"\\arccos", tag:"mi", output:"arccos", ttype:UNARY, func:true},
|
|
408
|
{input:"\\arcsin", tag:"mi", output:"arcsin", ttype:UNARY, func:true},
|
|
409
|
{input:"\\arctan", tag:"mi", output:"arctan", ttype:UNARY, func:true},
|
|
410
|
{input:"\\arg", tag:"mi", output:"arg", ttype:UNARY, func:true},
|
|
411
|
{input:"\\cos", tag:"mi", output:"cos", ttype:UNARY, func:true},
|
|
412
|
{input:"\\cosh", tag:"mi", output:"cosh", ttype:UNARY, func:true},
|
|
413
|
{input:"\\cot", tag:"mi", output:"cot", ttype:UNARY, func:true},
|
|
414
|
{input:"\\coth", tag:"mi", output:"coth", ttype:UNARY, func:true},
|
|
415
|
{input:"\\csc", tag:"mi", output:"csc", ttype:UNARY, func:true},
|
|
416
|
{input:"\\deg", tag:"mi", output:"deg", ttype:UNARY, func:true},
|
|
417
|
{input:"\\det", tag:"mi", output:"det", ttype:UNARY, func:true},
|
|
418
|
{input:"\\dim", tag:"mi", output:"dim", ttype:UNARY, func:true}, //CONST?
|
|
419
|
{input:"\\exp", tag:"mi", output:"exp", ttype:UNARY, func:true},
|
|
420
|
{input:"\\gcd", tag:"mi", output:"gcd", ttype:UNARY, func:true}, //CONST?
|
|
421
|
{input:"\\hom", tag:"mi", output:"hom", ttype:UNARY, func:true},
|
|
422
|
{input:"\\inf", tag:"mo", output:"inf", ttype:UNDEROVER},
|
|
423
|
{input:"\\ker", tag:"mi", output:"ker", ttype:UNARY, func:true},
|
|
424
|
{input:"\\lg", tag:"mi", output:"lg", ttype:UNARY, func:true},
|
|
425
|
{input:"\\lim", tag:"mo", output:"lim", ttype:UNDEROVER},
|
|
426
|
{input:"\\liminf", tag:"mo", output:"liminf", ttype:UNDEROVER},
|
|
427
|
{input:"\\limsup", tag:"mo", output:"limsup", ttype:UNDEROVER},
|
|
428
|
{input:"\\ln", tag:"mi", output:"ln", ttype:UNARY, func:true},
|
|
429
|
{input:"\\log", tag:"mi", output:"log", ttype:UNARY, func:true},
|
|
430
|
{input:"\\max", tag:"mo", output:"max", ttype:UNDEROVER},
|
|
431
|
{input:"\\min", tag:"mo", output:"min", ttype:UNDEROVER},
|
|
432
|
{input:"\\Pr", tag:"mi", output:"Pr", ttype:UNARY, func:true},
|
|
433
|
{input:"\\sec", tag:"mi", output:"sec", ttype:UNARY, func:true},
|
|
434
|
{input:"\\sin", tag:"mi", output:"sin", ttype:UNARY, func:true},
|
|
435
|
{input:"\\sinh", tag:"mi", output:"sinh", ttype:UNARY, func:true},
|
|
436
|
{input:"\\sup", tag:"mo", output:"sup", ttype:UNDEROVER},
|
|
437
|
{input:"\\tan", tag:"mi", output:"tan", ttype:UNARY, func:true},
|
|
438
|
{input:"\\tanh", tag:"mi", output:"tanh", ttype:UNARY, func:true},
|
|
439
|
|
|
440
|
//arrows
|
|
441
|
{input:"\\gets", tag:"mo", output:"\u2190", ttype:CONST},
|
|
442
|
{input:"\\leftarrow", tag:"mo", output:"\u2190", ttype:CONST},
|
|
443
|
{input:"\\to", tag:"mo", output:"\u2192", ttype:CONST},
|
|
444
|
{input:"\\rightarrow", tag:"mo", output:"\u2192", ttype:CONST},
|
|
445
|
{input:"\\leftrightarrow", tag:"mo", output:"\u2194", ttype:CONST},
|
|
446
|
{input:"\\uparrow", tag:"mo", output:"\u2191", ttype:CONST},
|
|
447
|
{input:"\\downarrow", tag:"mo", output:"\u2193", ttype:CONST},
|
|
448
|
{input:"\\updownarrow", tag:"mo", output:"\u2195", ttype:CONST},
|
|
449
|
{input:"\\Leftarrow", tag:"mo", output:"\u21D0", ttype:CONST},
|
|
450
|
{input:"\\Rightarrow", tag:"mo", output:"\u21D2", ttype:CONST},
|
|
451
|
{input:"\\Leftrightarrow", tag:"mo", output:"\u21D4", ttype:CONST},
|
|
452
|
{input:"\\iff", tag:"mo", output:"~\\Longleftrightarrow~", ttype:DEFINITION},
|
|
453
|
{input:"\\Uparrow", tag:"mo", output:"\u21D1", ttype:CONST},
|
|
454
|
{input:"\\Downarrow", tag:"mo", output:"\u21D3", ttype:CONST},
|
|
455
|
{input:"\\Updownarrow", tag:"mo", output:"\u21D5", ttype:CONST},
|
|
456
|
{input:"\\mapsto", tag:"mo", output:"\u21A6", ttype:CONST},
|
|
457
|
{input:"\\longleftarrow", tag:"mo", output:"\u2190", ttype:LONG},
|
|
458
|
{input:"\\longrightarrow", tag:"mo", output:"\u2192", ttype:LONG},
|
|
459
|
{input:"\\longleftrightarrow", tag:"mo", output:"\u2194", ttype:LONG},
|
|
460
|
{input:"\\Longleftarrow", tag:"mo", output:"\u21D0", ttype:LONG},
|
|
461
|
{input:"\\Longrightarrow", tag:"mo", output:"\u21D2", ttype:LONG},
|
|
462
|
{input:"\\Longleftrightarrow", tag:"mo", output:"\u21D4", ttype:LONG},
|
|
463
|
{input:"\\longmapsto", tag:"mo", output:"\u21A6", ttype:CONST},
|
|
464
|
// disaster if LONG
|
|
465
|
|
|
466
|
//commands with argument
|
|
467
|
AMsqrt, AMroot, AMfrac, AMover, AMsub, AMsup, AMtext, AMmbox, AMatop, AMchoose,
|
|
468
|
//AMdiv, AMquote,
|
|
469
|
|
|
470
|
//diacritical marks
|
|
471
|
{input:"\\acute", tag:"mover", output:"\u00B4", ttype:UNARY, acc:true},
|
|
472
|
//{input:"\\acute", tag:"mover", output:"\u0317", ttype:UNARY, acc:true},
|
|
473
|
//{input:"\\acute", tag:"mover", output:"\u0301", ttype:UNARY, acc:true},
|
|
474
|
//{input:"\\grave", tag:"mover", output:"\u0300", ttype:UNARY, acc:true},
|
|
475
|
//{input:"\\grave", tag:"mover", output:"\u0316", ttype:UNARY, acc:true},
|
|
476
|
{input:"\\grave", tag:"mover", output:"\u0060", ttype:UNARY, acc:true},
|
|
477
|
{input:"\\breve", tag:"mover", output:"\u02D8", ttype:UNARY, acc:true},
|
|
478
|
{input:"\\check", tag:"mover", output:"\u02C7", ttype:UNARY, acc:true},
|
|
479
|
{input:"\\dot", tag:"mover", output:".", ttype:UNARY, acc:true},
|
|
480
|
{input:"\\ddot", tag:"mover", output:"..", ttype:UNARY, acc:true},
|
|
481
|
//{input:"\\ddot", tag:"mover", output:"\u00A8", ttype:UNARY, acc:true},
|
|
482
|
{input:"\\mathring", tag:"mover", output:"\u00B0", ttype:UNARY, acc:true},
|
|
483
|
{input:"\\vec", tag:"mover", output:"\u20D7", ttype:UNARY, acc:true},
|
|
484
|
{input:"\\overrightarrow",tag:"mover",output:"\u20D7", ttype:UNARY, acc:true},
|
|
485
|
{input:"\\overleftarrow",tag:"mover", output:"\u20D6", ttype:UNARY, acc:true},
|
|
486
|
{input:"\\hat", tag:"mover", output:"\u005E", ttype:UNARY, acc:true},
|
|
487
|
{input:"\\widehat", tag:"mover", output:"\u0302", ttype:UNARY, acc:true},
|
|
488
|
{input:"\\tilde", tag:"mover", output:"~", ttype:UNARY, acc:true},
|
|
489
|
//{input:"\\tilde", tag:"mover", output:"\u0303", ttype:UNARY, acc:true},
|
|
490
|
{input:"\\widetilde", tag:"mover", output:"\u02DC", ttype:UNARY, acc:true},
|
|
491
|
{input:"\\bar", tag:"mover", output:"\u203E", ttype:UNARY, acc:true},
|
|
492
|
{input:"\\overbrace", tag:"mover", output:"\u23B4", ttype:UNARY, acc:true},
|
|
493
|
{input:"\\overline", tag:"mover", output:"\u00AF", ttype:UNARY, acc:true},
|
|
494
|
{input:"\\underbrace", tag:"munder", output:"\u23B5", ttype:UNARY, acc:true},
|
|
495
|
{input:"\\underline", tag:"munder", output:"\u00AF", ttype:UNARY, acc:true},
|
|
496
|
//{input:"underline", tag:"munder", output:"\u0332", ttype:UNARY, acc:true},
|
|
497
|
|
|
498
|
//typestyles and fonts
|
|
499
|
{input:"\\displaystyle",tag:"mstyle",atname:"displaystyle",atval:"true", ttype:UNARY},
|
|
500
|
{input:"\\textstyle",tag:"mstyle",atname:"displaystyle",atval:"false", ttype:UNARY},
|
|
501
|
{input:"\\scriptstyle",tag:"mstyle",atname:"scriptlevel",atval:"1", ttype:UNARY},
|
|
502
|
{input:"\\scriptscriptstyle",tag:"mstyle",atname:"scriptlevel",atval:"2", ttype:UNARY},
|
|
503
|
{input:"\\textrm", tag:"mstyle", output:"\\mathrm", ttype: DEFINITION},
|
|
504
|
{input:"\\mathbf", tag:"mstyle", atname:"mathvariant", atval:"bold", ttype:UNARY},
|
|
505
|
{input:"\\textbf", tag:"mstyle", atname:"mathvariant", atval:"bold", ttype:UNARY},
|
|
506
|
{input:"\\mathit", tag:"mstyle", atname:"mathvariant", atval:"italic", ttype:UNARY},
|
|
507
|
{input:"\\textit", tag:"mstyle", atname:"mathvariant", atval:"italic", ttype:UNARY},
|
|
508
|
{input:"\\mathtt", tag:"mstyle", atname:"mathvariant", atval:"monospace", ttype:UNARY},
|
|
509
|
{input:"\\texttt", tag:"mstyle", atname:"mathvariant", atval:"monospace", ttype:UNARY},
|
|
510
|
{input:"\\mathsf", tag:"mstyle", atname:"mathvariant", atval:"sans-serif", ttype:UNARY},
|
|
511
|
{input:"\\mathbb", tag:"mstyle", atname:"mathvariant", atval:"double-struck", ttype:UNARY, codes:AMbbb},
|
|
512
|
{input:"\\mathcal",tag:"mstyle", atname:"mathvariant", atval:"script", ttype:UNARY, codes:AMcal},
|
|
513
|
{input:"\\mathfrak",tag:"mstyle",atname:"mathvariant", atval:"fraktur",ttype:UNARY, codes:AMfrk}
|
|
514
|
];
|
|
515
|
|
|
516
|
function compareNames(s1,s2) {
|
|
517
|
if (s1.input > s2.input) return 1
|
|
518
|
else return -1;
|
|
519
|
}
|
|
520
|
|
|
521
|
var AMnames = []; //list of input symbols
|
|
522
|
|
|
523
|
function AMinitSymbols() {
|
|
524
|
AMsymbols.sort(compareNames);
|
|
525
|
for (i=0; i<AMsymbols.length; i++) AMnames[i] = AMsymbols[i].input;
|
|
526
|
}
|
|
527
|
|
|
528
|
var AMmathml = "http://www.w3.org/1998/Math/MathML";
|
|
529
|
|
|
530
|
function AMcreateElementMathML(t) {
|
|
531
|
if (isIE) return document.createElement("m:"+t);
|
|
532
|
else return document.createElementNS(AMmathml,t);
|
|
533
|
}
|
|
534
|
|
|
535
|
function AMcreateMmlNode(t,frag) {
|
|
536
|
// var node = AMcreateElementMathML(name);
|
|
537
|
if (isIE) var node = document.createElement("m:"+t);
|
|
538
|
else var node = document.createElementNS(AMmathml,t);
|
|
539
|
node.appendChild(frag);
|
|
540
|
return node;
|
|
541
|
}
|
|
542
|
|
|
543
|
function newcommand(oldstr,newstr) {
|
|
544
|
AMsymbols = AMsymbols.concat([{input:oldstr, tag:"mo", output:newstr,
|
|
545
|
ttype:DEFINITION}]);
|
|
546
|
}
|
|
547
|
|
|
548
|
function AMremoveCharsAndBlanks(str,n) {
|
|
549
|
//remove n characters and any following blanks
|
|
550
|
var st;
|
|
551
|
st = str.slice(n);
|
|
552
|
for (var i=0; i<st.length && st.charCodeAt(i)<=32; i=i+1);
|
|
553
|
return st.slice(i);
|
|
554
|
}
|
|
555
|
|
|
556
|
function AMposition(arr, str, n) {
|
|
557
|
// return position >=n where str appears or would be inserted
|
|
558
|
// assumes arr is sorted
|
|
559
|
if (n==0) {
|
|
560
|
var h,m;
|
|
561
|
n = -1;
|
|
562
|
h = arr.length;
|
|
563
|
while (n+1<h) {
|
|
564
|
m = (n+h) >> 1;
|
|
565
|
if (arr[m]<str) n = m; else h = m;
|
|
566
|
}
|
|
567
|
return h;
|
|
568
|
} else
|
|
569
|
for (var i=n; i<arr.length && arr[i]<str; i++);
|
|
570
|
return i; // i=arr.length || arr[i]>=str
|
|
571
|
}
|
|
572
|
|
|
573
|
function AMgetSymbol(str) {
|
|
574
|
//return maximal initial substring of str that appears in names
|
|
575
|
//return null if there is none
|
|
576
|
var k = 0; //new pos
|
|
577
|
var j = 0; //old pos
|
|
578
|
var mk; //match pos
|
|
579
|
var st;
|
|
580
|
var tagst;
|
|
581
|
var match = "";
|
|
582
|
var more = true;
|
|
583
|
for (var i=1; i<=str.length && more; i++) {
|
|
584
|
st = str.slice(0,i); //initial substring of length i
|
|
585
|
j = k;
|
|
586
|
k = AMposition(AMnames, st, j);
|
|
587
|
if (k<AMnames.length && str.slice(0,AMnames[k].length)==AMnames[k]){
|
|
588
|
match = AMnames[k];
|
|
589
|
mk = k;
|
|
590
|
i = match.length;
|
|
591
|
}
|
|
592
|
more = k<AMnames.length && str.slice(0,AMnames[k].length)>=AMnames[k];
|
|
593
|
}
|
|
594
|
AMpreviousSymbol=AMcurrentSymbol;
|
|
595
|
if (match!=""){
|
|
596
|
AMcurrentSymbol=AMsymbols[mk].ttype;
|
|
597
|
return AMsymbols[mk];
|
|
598
|
}
|
|
599
|
AMcurrentSymbol=CONST;
|
|
600
|
k = 1;
|
|
601
|
st = str.slice(0,1); //take 1 character
|
|
602
|
if ("0"<=st && st<="9") tagst = "mn";
|
|
603
|
else tagst = (("A">st || st>"Z") && ("a">st || st>"z")?"mo":"mi");
|
|
604
|
/*
|
|
605
|
// Commented out by DRW (not fully understood, but probably to do with
|
|
606
|
// use of "/" as an INFIX version of "\\frac", which we don't want):
|
|
607
|
//}
|
|
608
|
//if (st=="-" && AMpreviousSymbol==INFIX) {
|
|
609
|
// AMcurrentSymbol = INFIX; //trick "/" into recognizing "-" on second parse
|
|
610
|
// return {input:st, tag:tagst, output:st, ttype:UNARY, func:true};
|
|
611
|
//}
|
|
612
|
*/
|
|
613
|
return {input:st, tag:tagst, output:st, ttype:CONST};
|
|
614
|
}
|
|
615
|
|
|
616
|
|
|
617
|
/*Parsing ASCII math expressions with the following grammar
|
|
618
|
v ::= [A-Za-z] | greek letters | numbers | other constant symbols
|
|
619
|
u ::= sqrt | text | bb | other unary symbols for font commands
|
|
620
|
b ::= frac | root | stackrel binary symbols
|
|
621
|
l ::= { | \left left brackets
|
|
622
|
r ::= } | \right right brackets
|
|
623
|
S ::= v | lEr | uS | bSS Simple expression
|
|
624
|
I ::= S_S | S^S | S_S^S | S Intermediate expression
|
|
625
|
E ::= IE | I/I Expression
|
|
626
|
Each terminal symbol is translated into a corresponding mathml node.*/
|
|
627
|
|
|
628
|
var AMpreviousSymbol,AMcurrentSymbol;
|
|
629
|
|
|
630
|
function AMparseSexpr(str) { //parses str and returns [node,tailstr,(node)tag]
|
|
631
|
var symbol, node, result, result2, i, st,// rightvert = false,
|
|
632
|
newFrag = document.createDocumentFragment();
|
|
633
|
str = AMremoveCharsAndBlanks(str,0);
|
|
634
|
symbol = AMgetSymbol(str); //either a token or a bracket or empty
|
|
635
|
if (symbol == null || symbol.ttype == RIGHTBRACKET)
|
|
636
|
return [null,str,null];
|
|
637
|
if (symbol.ttype == DEFINITION) {
|
|
638
|
str = symbol.output+AMremoveCharsAndBlanks(str,symbol.input.length);
|
|
639
|
symbol = AMgetSymbol(str);
|
|
640
|
if (symbol == null || symbol.ttype == RIGHTBRACKET)
|
|
641
|
return [null,str,null];
|
|
642
|
}
|
|
643
|
str = AMremoveCharsAndBlanks(str,symbol.input.length);
|
|
644
|
switch (symbol.ttype) {
|
|
645
|
case SPACE:
|
|
646
|
node = AMcreateElementMathML(symbol.tag);
|
|
647
|
node.setAttribute(symbol.atname,symbol.atval);
|
|
648
|
return [node,str,symbol.tag];
|
|
649
|
case UNDEROVER:
|
|
650
|
if (isIE) {
|
|
651
|
if (symbol.input.substr(0,4) == "\\big") { // botch for missing symbols
|
|
652
|
str = "\\"+symbol.input.substr(4)+str; // make \bigcup = \cup etc.
|
|
653
|
symbol = AMgetSymbol(str);
|
|
654
|
symbol.ttype = UNDEROVER;
|
|
655
|
str = AMremoveCharsAndBlanks(str,symbol.input.length);
|
|
656
|
}
|
|
657
|
}
|
|
658
|
return [AMcreateMmlNode(symbol.tag,
|
|
659
|
document.createTextNode(symbol.output)),str,symbol.tag];
|
|
660
|
case CONST:
|
|
661
|
var output = symbol.output;
|
|
662
|
if (isIE) {
|
|
663
|
if (symbol.input == "'")
|
|
664
|
output = "\u2032";
|
|
665
|
else if (symbol.input == "''")
|
|
666
|
output = "\u2033";
|
|
667
|
else if (symbol.input == "'''")
|
|
668
|
output = "\u2033\u2032";
|
|
669
|
else if (symbol.input == "''''")
|
|
670
|
output = "\u2033\u2033";
|
|
671
|
else if (symbol.input == "\\square")
|
|
672
|
output = "\u25A1"; // same as \Box
|
|
673
|
else if (symbol.input.substr(0,5) == "\\frac") {
|
|
674
|
// botch for missing fractions
|
|
675
|
var denom = symbol.input.substr(6,1);
|
|
676
|
if (denom == "5" || denom == "6") {
|
|
677
|
str = symbol.input.replace(/\\frac/,"\\frac ")+str;
|
|
678
|
return [node,str,symbol.tag];
|
|
679
|
}
|
|
680
|
}
|
|
681
|
}
|
|
682
|
node = AMcreateMmlNode(symbol.tag,document.createTextNode(output));
|
|
683
|
return [node,str,symbol.tag];
|
|
684
|
case LONG: // added by DRW
|
|
685
|
node = AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output));
|
|
686
|
node.setAttribute("minsize","1.5");
|
|
687
|
node.setAttribute("maxsize","1.5");
|
|
688
|
node = AMcreateMmlNode("mover",node);
|
|
689
|
node.appendChild(AMcreateElementMathML("mspace"));
|
|
690
|
return [node,str,symbol.tag];
|
|
691
|
case STRETCHY: // added by DRW
|
|
692
|
if (isIE && symbol.input == "\\backslash")
|
|
693
|
symbol.output = "\\"; // doesn't expand, but then nor does "\u2216"
|
|
694
|
node = AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output));
|
|
695
|
if (symbol.input == "|" || symbol.input == "\\vert" ||
|
|
696
|
symbol.input == "\\|" || symbol.input == "\\Vert") {
|
|
697
|
node.setAttribute("lspace","0em");
|
|
698
|
node.setAttribute("rspace","0em");
|
|
699
|
}
|
|
700
|
node.setAttribute("maxsize",symbol.atval); // don't allow to stretch here
|
|
701
|
if (symbol.rtag != null)
|
|
702
|
return [node,str,symbol.rtag];
|
|
703
|
else
|
|
704
|
return [node,str,symbol.tag];
|
|
705
|
case BIG: // added by DRW
|
|
706
|
var atval = symbol.atval;
|
|
707
|
if (isIE)
|
|
708
|
atval = symbol.ieval;
|
|
709
|
symbol = AMgetSymbol(str);
|
|
710
|
if (symbol == null)
|
|
711
|
return [null,str,null];
|
|
712
|
str = AMremoveCharsAndBlanks(str,symbol.input.length);
|
|
713
|
node = AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output));
|
|
714
|
if (isIE) { // to get brackets to expand
|
|
715
|
var space = AMcreateElementMathML("mspace");
|
|
716
|
space.setAttribute("height",atval+"ex");
|
|
717
|
node = AMcreateMmlNode("mrow",node);
|
|
718
|
node.appendChild(space);
|
|
719
|
} else { // ignored in IE
|
|
720
|
node.setAttribute("minsize",atval);
|
|
721
|
node.setAttribute("maxsize",atval);
|
|
722
|
}
|
|
723
|
return [node,str,symbol.tag];
|
|
724
|
case LEFTBRACKET: //read (expr+)
|
|
725
|
if (symbol.input == "\\left") { // left what?
|
|
726
|
symbol = AMgetSymbol(str);
|
|
727
|
if (symbol != null) {
|
|
728
|
if (symbol.input == ".")
|
|
729
|
symbol.invisible = true;
|
|
730
|
str = AMremoveCharsAndBlanks(str,symbol.input.length);
|
|
731
|
}
|
|
732
|
}
|
|
733
|
result = AMparseExpr(str,true,false);
|
|
734
|
if (symbol==null ||
|
|
735
|
(typeof symbol.invisible == "boolean" && symbol.invisible))
|
|
736
|
node = AMcreateMmlNode("mrow",result[0]);
|
|
737
|
else {
|
|
738
|
node = AMcreateMmlNode("mo",document.createTextNode(symbol.output));
|
|
739
|
node = AMcreateMmlNode("mrow",node);
|
|
740
|
node.appendChild(result[0]);
|
|
741
|
}
|
|
742
|
return [node,result[1],result[2]];
|
|
743
|
case MATRIX: //read (expr+)
|
|
744
|
if (symbol.input == "\\begin{array}") {
|
|
745
|
var mask = "";
|
|
746
|
symbol = AMgetSymbol(str);
|
|
747
|
str = AMremoveCharsAndBlanks(str,0);
|
|
748
|
if (symbol == null)
|
|
749
|
mask = "l";
|
|
750
|
else {
|
|
751
|
str = AMremoveCharsAndBlanks(str,symbol.input.length);
|
|
752
|
if (symbol.input != "{")
|
|
753
|
mask = "l";
|
|
754
|
else do {
|
|
755
|
symbol = AMgetSymbol(str);
|
|
756
|
if (symbol != null) {
|
|
757
|
str = AMremoveCharsAndBlanks(str,symbol.input.length);
|
|
758
|
if (symbol.input != "}")
|
|
759
|
mask = mask+symbol.input;
|
|
760
|
}
|
|
761
|
} while (symbol != null && symbol.input != "" && symbol.input != "}");
|
|
762
|
}
|
|
763
|
result = AMparseExpr("{"+str,true,true);
|
|
764
|
// if (result[0]==null) return [AMcreateMmlNode("mo",
|
|
765
|
// document.createTextNode(symbol.input)),str];
|
|
766
|
node = AMcreateMmlNode("mtable",result[0]);
|
|
767
|
mask = mask.replace(/l/g,"left ");
|
|
768
|
mask = mask.replace(/r/g,"right ");
|
|
769
|
mask = mask.replace(/c/g,"center ");
|
|
770
|
node.setAttribute("columnalign",mask);
|
|
771
|
node.setAttribute("displaystyle","false");
|
|
772
|
if (isIE)
|
|
773
|
return [node,result[1],null];
|
|
774
|
// trying to get a *little* bit of space around the array
|
|
775
|
// (IE already includes it)
|
|
776
|
var lspace = AMcreateElementMathML("mspace");
|
|
777
|
lspace.setAttribute("width","0.167em");
|
|
778
|
var rspace = AMcreateElementMathML("mspace");
|
|
779
|
rspace.setAttribute("width","0.167em");
|
|
780
|
var node1 = AMcreateMmlNode("mrow",lspace);
|
|
781
|
node1.appendChild(node);
|
|
782
|
node1.appendChild(rspace);
|
|
783
|
return [node1,result[1],null];
|
|
784
|
} else { // eqnarray
|
|
785
|
result = AMparseExpr("{"+str,true,true);
|
|
786
|
node = AMcreateMmlNode("mtable",result[0]);
|
|
787
|
if (isIE)
|
|
788
|
node.setAttribute("columnspacing","0.25em"); // best in practice?
|
|
789
|
else
|
|
790
|
node.setAttribute("columnspacing","0.167em"); // correct (but ignored?)
|
|
791
|
node.setAttribute("columnalign","right center left");
|
|
792
|
node.setAttribute("displaystyle","true");
|
|
793
|
node = AMcreateMmlNode("mrow",node);
|
|
794
|
return [node,result[1],null];
|
|
795
|
}
|
|
796
|
case TEXT:
|
|
797
|
if (str.charAt(0)=="{") i=str.indexOf("}");
|
|
798
|
else i = 0;
|
|
799
|
if (i==-1)
|
|
800
|
i = str.length;
|
|
801
|
st = str.slice(1,i);
|
|
802
|
if (st.charAt(0) == " ") {
|
|
803
|
node = AMcreateElementMathML("mspace");
|
|
804
|
node.setAttribute("width","0.33em"); // was 1ex
|
|
805
|
newFrag.appendChild(node);
|
|
806
|
}
|
|
807
|
newFrag.appendChild(
|
|
808
|
AMcreateMmlNode(symbol.tag,document.createTextNode(st)));
|
|
809
|
if (st.charAt(st.length-1) == " ") {
|
|
810
|
node = AMcreateElementMathML("mspace");
|
|
811
|
node.setAttribute("width","0.33em"); // was 1ex
|
|
812
|
newFrag.appendChild(node);
|
|
813
|
}
|
|
814
|
str = AMremoveCharsAndBlanks(str,i+1);
|
|
815
|
return [AMcreateMmlNode("mrow",newFrag),str,null];
|
|
816
|
case UNARY:
|
|
817
|
result = AMparseSexpr(str);
|
|
818
|
if (result[0]==null) return [AMcreateMmlNode(symbol.tag,
|
|
819
|
document.createTextNode(symbol.output)),str];
|
|
820
|
if (typeof symbol.func == "boolean" && symbol.func) { // functions hack
|
|
821
|
st = str.charAt(0);
|
|
822
|
// if (st=="^" || st=="_" || st=="/" || st=="|" || st==",") {
|
|
823
|
if (st=="^" || st=="_" || st==",") {
|
|
824
|
return [AMcreateMmlNode(symbol.tag,
|
|
825
|
document.createTextNode(symbol.output)),str,symbol.tag];
|
|
826
|
} else {
|
|
827
|
node = AMcreateMmlNode("mrow",
|
|
828
|
AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output)));
|
|
829
|
if (isIE) {
|
|
830
|
var space = AMcreateElementMathML("mspace");
|
|
831
|
space.setAttribute("width","0.167em");
|
|
832
|
node.appendChild(space);
|
|
833
|
}
|
|
834
|
node.appendChild(result[0]);
|
|
835
|
return [node,result[1],symbol.tag];
|
|
836
|
}
|
|
837
|
}
|
|
838
|
if (symbol.input == "\\sqrt") { // sqrt
|
|
839
|
if (isIE) { // set minsize, for \surd
|
|
840
|
var space = AMcreateElementMathML("mspace");
|
|
841
|
space.setAttribute("height","1.2ex");
|
|
842
|
space.setAttribute("width","0em"); // probably no effect
|
|
843
|
node = AMcreateMmlNode(symbol.tag,result[0])
|
|
844
|
// node.setAttribute("minsize","1"); // ignored
|
|
845
|
// node = AMcreateMmlNode("mrow",node); // hopefully unnecessary
|
|
846
|
node.appendChild(space);
|
|
847
|
return [node,result[1],symbol.tag];
|
|
848
|
} else
|
|
849
|
return [AMcreateMmlNode(symbol.tag,result[0]),result[1],symbol.tag];
|
|
850
|
} else if (typeof symbol.acc == "boolean" && symbol.acc) { // accent
|
|
851
|
node = AMcreateMmlNode(symbol.tag,result[0]);
|
|
852
|
var output = symbol.output;
|
|
853
|
if (isIE) {
|
|
854
|
if (symbol.input == "\\hat")
|
|
855
|
output = "\u0302";
|
|
856
|
else if (symbol.input == "\\widehat")
|
|
857
|
output = "\u005E";
|
|
858
|
else if (symbol.input == "\\bar")
|
|
859
|
output = "\u00AF";
|
|
860
|
else if (symbol.input == "\\grave")
|
|
861
|
output = "\u0300";
|
|
862
|
else if (symbol.input == "\\tilde")
|
|
863
|
output = "\u0303";
|
|
864
|
}
|
|
865
|
var node1 = AMcreateMmlNode("mo",document.createTextNode(output));
|
|
866
|
if (symbol.input == "\\vec" || symbol.input == "\\check")
|
|
867
|
// don't allow to stretch
|
|
868
|
node1.setAttribute("maxsize","1.2");
|
|
869
|
// why doesn't "1" work? \vec nearly disappears in firefox
|
|
870
|
if (isIE && symbol.input == "\\bar")
|
|
871
|
node1.setAttribute("maxsize","0.5");
|
|
872
|
if (symbol.input == "\\underbrace" || symbol.input == "\\underline")
|
|
873
|
node1.setAttribute("accentunder","true");
|
|
874
|
else
|
|
875
|
node1.setAttribute("accent","true");
|
|
876
|
node.appendChild(node1);
|
|
877
|
if (symbol.input == "\\overbrace" || symbol.input == "\\underbrace")
|
|
878
|
node.ttype = UNDEROVER;
|
|
879
|
return [node,result[1],symbol.tag];
|
|
880
|
} else { // font change or displaystyle command
|
|
881
|
if (!isIE && typeof symbol.codes != "undefined") {
|
|
882
|
for (i=0; i<result[0].childNodes.length; i++)
|
|
883
|
if (result[0].childNodes[i].nodeName=="mi" || result[0].nodeName=="mi") {
|
|
884
|
st = (result[0].nodeName=="mi"?result[0].firstChild.nodeValue:
|
|
885
|
result[0].childNodes[i].firstChild.nodeValue);
|
|
886
|
var newst = [];
|
|
887
|
for (var j=0; j<st.length; j++)
|
|
888
|
if (st.charCodeAt(j)>64 && st.charCodeAt(j)<91) newst = newst +
|
|
889
|
String.fromCharCode(symbol.codes[st.charCodeAt(j)-65]);
|
|
890
|
else newst = newst + st.charAt(j);
|
|
891
|
if (result[0].nodeName=="mi")
|
|
892
|
result[0]=AMcreateElementMathML("mo").
|
|
893
|
appendChild(document.createTextNode(newst));
|
|
894
|
else result[0].replaceChild(AMcreateElementMathML("mo").
|
|
895
|
appendChild(document.createTextNode(newst)),result[0].childNodes[i]);
|
|
896
|
}
|
|
897
|
}
|
|
898
|
node = AMcreateMmlNode(symbol.tag,result[0]);
|
|
899
|
node.setAttribute(symbol.atname,symbol.atval);
|
|
900
|
if (symbol.input == "\\scriptstyle" ||
|
|
901
|
symbol.input == "\\scriptscriptstyle")
|
|
902
|
node.setAttribute("displaystyle","false");
|
|
903
|
return [node,result[1],symbol.tag];
|
|
904
|
}
|
|
905
|
case BINARY:
|
|
906
|
result = AMparseSexpr(str);
|
|
907
|
if (result[0]==null) return [AMcreateMmlNode("mo",
|
|
908
|
document.createTextNode(symbol.input)),str,null];
|
|
909
|
result2 = AMparseSexpr(result[1]);
|
|
910
|
if (result2[0]==null) return [AMcreateMmlNode("mo",
|
|
911
|
document.createTextNode(symbol.input)),str,null];
|
|
912
|
if (symbol.input=="\\root" || symbol.input=="\\stackrel")
|
|
913
|
newFrag.appendChild(result2[0]);
|
|
914
|
newFrag.appendChild(result[0]);
|
|
915
|
if (symbol.input=="\\frac") newFrag.appendChild(result2[0]);
|
|
916
|
return [AMcreateMmlNode(symbol.tag,newFrag),result2[1],symbol.tag];
|
|
917
|
case INFIX:
|
|
918
|
str = AMremoveCharsAndBlanks(str,symbol.input.length);
|
|
919
|
return [AMcreateMmlNode("mo",document.createTextNode(symbol.output)),
|
|
920
|
str,symbol.tag];
|
|
921
|
default:
|
|
922
|
return [AMcreateMmlNode(symbol.tag, //its a constant
|
|
923
|
document.createTextNode(symbol.output)),str,symbol.tag];
|
|
924
|
}
|
|
925
|
}
|
|
926
|
|
|
927
|
function AMparseIexpr(str) {
|
|
928
|
var symbol, sym1, sym2, node, result, tag, underover;
|
|
929
|
str = AMremoveCharsAndBlanks(str,0);
|
|
930
|
sym1 = AMgetSymbol(str);
|
|
931
|
result = AMparseSexpr(str);
|
|
932
|
node = result[0];
|
|
933
|
str = result[1];
|
|
934
|
tag = result[2];
|
|
935
|
symbol = AMgetSymbol(str);
|
|
936
|
if (symbol.ttype == INFIX) {
|
|
937
|
str = AMremoveCharsAndBlanks(str,symbol.input.length);
|
|
938
|
result = AMparseSexpr(str);
|
|
939
|
if (result[0] == null) // show box in place of missing argument
|
|
940
|
result[0] = AMcreateMmlNode("mo",document.createTextNode("\u25A1"));
|
|
941
|
str = result[1];
|
|
942
|
tag = result[2];
|
|
943
|
if (symbol.input == "_" || symbol.input == "^") {
|
|
944
|
sym2 = AMgetSymbol(str);
|
|
945
|
tag = null; // no space between x^2 and a following sin, cos, etc.
|
|
946
|
// This is for \underbrace and \overbrace
|
|
947
|
underover = ((sym1.ttype == UNDEROVER) || (node.ttype == UNDEROVER));
|
|
948
|
// underover = (sym1.ttype == UNDEROVER);
|
|
949
|
if (symbol.input == "_" && sym2.input == "^") {
|
|
950
|
str = AMremoveCharsAndBlanks(str,sym2.input.length);
|
|
951
|
var res2 = AMparseSexpr(str);
|
|
952
|
str = res2[1];
|
|
953
|
tag = res2[2]; // leave space between x_1^2 and a following sin etc.
|
|
954
|
node = AMcreateMmlNode((underover?"munderover":"msubsup"),node);
|
|
955
|
node.appendChild(result[0]);
|
|
956
|
node.appendChild(res2[0]);
|
|
957
|
} else if (symbol.input == "_") {
|
|
958
|
node = AMcreateMmlNode((underover?"munder":"msub"),node);
|
|
959
|
node.appendChild(result[0]);
|
|
960
|
} else {
|
|
961
|
node = AMcreateMmlNode((underover?"mover":"msup"),node);
|
|
962
|
node.appendChild(result[0]);
|
|
963
|
}
|
|
964
|
node = AMcreateMmlNode("mrow",node); // so sum does not stretch
|
|
965
|
} else {
|
|
966
|
node = AMcreateMmlNode(symbol.tag,node);
|
|
967
|
if (symbol.input == "\\atop" || symbol.input == "\\choose")
|
|
968
|
node.setAttribute("linethickness","0ex");
|
|
969
|
node.appendChild(result[0]);
|
|
970
|
if (symbol.input == "\\choose")
|
|
971
|
node = AMcreateMmlNode("mfenced",node);
|
|
972
|
}
|
|
973
|
}
|
|
974
|
return [node,str,tag];
|
|
975
|
}
|
|
976
|
|
|
977
|
function AMparseExpr(str,rightbracket,matrix) {
|
|
978
|
var symbol, node, result, i, tag,
|
|
979
|
newFrag = document.createDocumentFragment();
|
|
980
|
do {
|
|
981
|
str = AMremoveCharsAndBlanks(str,0);
|
|
982
|
result = AMparseIexpr(str);
|
|
983
|
node = result[0];
|
|
984
|
str = result[1];
|
|
985
|
tag = result[2];
|
|
986
|
symbol = AMgetSymbol(str);
|
|
987
|
if (node!=undefined) {
|
|
988
|
if ((tag == "mn" || tag == "mi") && symbol!=null &&
|
|
989
|
typeof symbol.func == "boolean" && symbol.func) {
|
|
990
|
// Add space before \sin in 2\sin x or x\sin x
|
|
991
|
var space = AMcreateElementMathML("mspace");
|
|
992
|
space.setAttribute("width","0.167em");
|
|
993
|
node = AMcreateMmlNode("mrow",node);
|
|
994
|
node.appendChild(space);
|
|
995
|
}
|
|
996
|
newFrag.appendChild(node);
|
|
997
|
}
|
|
998
|
} while ((symbol.ttype != RIGHTBRACKET)
|
|
999
|
&& symbol!=null && symbol.output!="");
|
|
1000
|
tag = null;
|
|
1001
|
if (symbol.ttype == RIGHTBRACKET) {
|
|
1002
|
if (symbol.input == "\\right") { // right what?
|
|
1003
|
str = AMremoveCharsAndBlanks(str,symbol.input.length);
|
|
1004
|
symbol = AMgetSymbol(str);
|
|
1005
|
if (symbol != null && symbol.input == ".")
|
|
1006
|
symbol.invisible = true;
|
|
1007
|
if (symbol != null)
|
|
1008
|
tag = symbol.rtag;
|
|
1009
|
}
|
|
1010
|
if (symbol!=null)
|
|
1011
|
str = AMremoveCharsAndBlanks(str,symbol.input.length); // ready to return
|
|
1012
|
var len = newFrag.childNodes.length;
|
|
1013
|
if (matrix &&
|
|
1014
|
len>0 && newFrag.childNodes[len-1].nodeName == "mrow" && len>1 &&
|
|
1015
|
newFrag.childNodes[len-2].nodeName == "mo" &&
|
|
1016
|
newFrag.childNodes[len-2].firstChild.nodeValue == "&") { //matrix
|
|
1017
|
var pos = []; // positions of ampersands
|
|
1018
|
var m = newFrag.childNodes.length;
|
|
1019
|
for (i=0; matrix && i<m; i=i+2) {
|
|
1020
|
pos[i] = [];
|
|
1021
|
node = newFrag.childNodes[i];
|
|
1022
|
for (var j=0; j<node.childNodes.length; j++)
|
|
1023
|
if (node.childNodes[j].firstChild.nodeValue=="&")
|
|
1024
|
pos[i][pos[i].length]=j;
|
|
1025
|
}
|
|
1026
|
var row, frag, n, k, table = document.createDocumentFragment();
|
|
1027
|
for (i=0; i<m; i=i+2) {
|
|
1028
|
row = document.createDocumentFragment();
|
|
1029
|
frag = document.createDocumentFragment();
|
|
1030
|
node = newFrag.firstChild; // <mrow> -&-&...&-&- </mrow>
|
|
1031
|
n = node.childNodes.length;
|
|
1032
|
k = 0;
|
|
1033
|
for (j=0; j<n; j++) {
|
|
1034
|
if (typeof pos[i][k] != "undefined" && j==pos[i][k]){
|
|
1035
|
node.removeChild(node.firstChild); //remove &
|
|
1036
|
row.appendChild(AMcreateMmlNode("mtd",frag));
|
|
1037
|
k++;
|
|
1038
|
} else frag.appendChild(node.firstChild);
|
|
1039
|
}
|
|
1040
|
row.appendChild(AMcreateMmlNode("mtd",frag));
|
|
1041
|
if (newFrag.childNodes.length>2) {
|
|
1042
|
newFrag.removeChild(newFrag.firstChild); //remove <mrow> </mrow>
|
|
1043
|
newFrag.removeChild(newFrag.firstChild); //remove <mo>&</mo>
|
|
1044
|
}
|
|
1045
|
table.appendChild(AMcreateMmlNode("mtr",row));
|
|
1046
|
}
|
|
1047
|
return [table,str];
|
|
1048
|
}
|
|
1049
|
if (typeof symbol.invisible != "boolean" || !symbol.invisible) {
|
|
1050
|
node = AMcreateMmlNode("mo",document.createTextNode(symbol.output));
|
|
1051
|
newFrag.appendChild(node);
|
|
1052
|
}
|
|
1053
|
}
|
|
1054
|
return [newFrag,str,tag];
|
|
1055
|
}
|
|
1056
|
|
|
1057
|
function AMparseMath(str) {
|
|
1058
|
var result, node = AMcreateElementMathML("mstyle");
|
|
1059
|
if (mathcolor != "") node.setAttribute("mathcolor",mathcolor);
|
|
1060
|
if (mathfontfamily != "") node.setAttribute("fontfamily",mathfontfamily);
|
|
1061
|
node.appendChild(AMparseExpr(str.replace(/^\s+/g,""),false,false)[0]);
|
|
1062
|
node = AMcreateMmlNode("math",node);
|
|
1063
|
if (showasciiformulaonhover) //fixed by djhsu so newline
|
|
1064
|
node.setAttribute("title",str.replace(/\s+/g," "));//does not show in Gecko
|
|
1065
|
if (mathfontfamily != "" && (isIE || mathfontfamily != "serif")) {
|
|
1066
|
var fnode = AMcreateElementXHTML("font");
|
|
1067
|
fnode.setAttribute("face",mathfontfamily);
|
|
1068
|
fnode.appendChild(node);
|
|
1069
|
return fnode;
|
|
1070
|
}
|
|
1071
|
return node;
|
|
1072
|
}
|
|
1073
|
|
|
1074
|
function AMstrarr2docFrag(arr, linebreaks) {
|
|
1075
|
var newFrag=document.createDocumentFragment();
|
|
1076
|
var expr = false;
|
|
1077
|
for (var i=0; i<arr.length; i++) {
|
|
1078
|
if (expr) newFrag.appendChild(AMparseMath(arr[i]));
|
|
1079
|
else {
|
|
1080
|
var arri = (linebreaks ? arr[i].split("\n\n") : [arr[i]]);
|
|
1081
|
newFrag.appendChild(AMcreateElementXHTML("span").
|
|
1082
|
appendChild(document.createTextNode(arri[0])));
|
|
1083
|
for (var j=1; j<arri.length; j++) {
|
|
1084
|
newFrag.appendChild(AMcreateElementXHTML("p"));
|
|
1085
|
newFrag.appendChild(AMcreateElementXHTML("span").
|
|
1086
|
appendChild(document.createTextNode(arri[j])));
|
|
1087
|
}
|
|
1088
|
}
|
|
1089
|
expr = !expr;
|
|
1090
|
}
|
|
1091
|
return newFrag;
|
|
1092
|
}
|
|
1093
|
|
|
1094
|
function AMprocessNodeR(n, linebreaks) {
|
|
1095
|
var mtch, str, arr, frg, i;
|
|
1096
|
if (n.childNodes.length == 0) {
|
|
1097
|
if ((n.nodeType!=8 || linebreaks) &&
|
|
1098
|
n.parentNode.nodeName!="form" && n.parentNode.nodeName!="FORM" &&
|
|
1099
|
n.parentNode.nodeName!="textarea" && n.parentNode.nodeName!="TEXTAREA" &&
|
|
1100
|
n.parentNode.nodeName!="pre" && n.parentNode.nodeName!="PRE") {
|
|
1101
|
str = n.nodeValue;
|
|
1102
|
if (!(str == null)) {
|
|
1103
|
str = str.replace(/\r\n\r\n/g,"\n\n");
|
|
1104
|
str = str.replace(/\x20+/g," ");
|
|
1105
|
str = str.replace(/\s*\r\n/g," ");
|
|
1106
|
// DELIMITERS:
|
|
1107
|
mtch = (str.indexOf("\$")==-1 ? false : true);
|
|
1108
|
str = str.replace(/([^\\])\$/g,"$1 \$");
|
|
1109
|
str = str.replace(/^\$/," \$"); // in case \$ at start of string
|
|
1110
|
arr = str.split(" \$");
|
|
1111
|
for (i=0; i<arr.length; i++)
|
|
1112
|
arr[i]=arr[i].replace(/\\\$/g,"\$");
|
|
1113
|
if (arr.length>1 || mtch) {
|
|
1114
|
if (checkForMathML) {
|
|
1115
|
checkForMathML = false;
|
|
1116
|
var nd = AMisMathMLavailable();
|
|
1117
|
AMnoMathML = nd != null;
|
|
1118
|
if (AMnoMathML && notifyIfNoMathML)
|
|
1119
|
if (alertIfNoMathML)
|
|
1120
|
alert("To view the ASCIIMathML notation use Internet Explorer 6 +\nMathPlayer (free from www.dessci.com)\n\
|
|
1121
|
or Firefox/Mozilla/Netscape");
|
|
1122
|
else AMbody.insertBefore(nd,AMbody.childNodes[0]);
|
|
1123
|
}
|
|
1124
|
if (!AMnoMathML) {
|
|
1125
|
frg = AMstrarr2docFrag(arr,n.nodeType==8);
|
|
1126
|
var len = frg.childNodes.length;
|
|
1127
|
n.parentNode.replaceChild(frg,n);
|
|
1128
|
return len-1;
|
|
1129
|
} else return 0;
|
|
1130
|
}
|
|
1131
|
}
|
|
1132
|
} else return 0;
|
|
1133
|
} else if (n.nodeName!="math") {
|
|
1134
|
for (i=0; i<n.childNodes.length; i++)
|
|
1135
|
i += AMprocessNodeR(n.childNodes[i], linebreaks);
|
|
1136
|
}
|
|
1137
|
return 0;
|
|
1138
|
}
|
|
1139
|
|
|
1140
|
function AMprocessNode(n, linebreaks, spanclassAM) {
|
|
1141
|
var frag,st;
|
|
1142
|
if (spanclassAM!=null) {
|
|
1143
|
frag = document.getElementsByTagName("span")
|
|
1144
|
for (var i=0;i<frag.length;i++)
|
|
1145
|
if (frag[i].className == "AM")
|
|
1146
|
AMprocessNodeR(frag[i],linebreaks);
|
|
1147
|
} else {
|
|
1148
|
try {
|
|
1149
|
st = n.innerHTML;
|
|
1150
|
} catch(err) {}
|
|
1151
|
// DELIMITERS:
|
|
1152
|
if (st==null || st.indexOf("\$")!=-1)
|
|
1153
|
AMprocessNodeR(n,linebreaks);
|
|
1154
|
}
|
|
1155
|
if (isIE) { //needed to match size and font of formula to surrounding text
|
|
1156
|
frag = document.getElementsByTagName('math');
|
|
1157
|
for (var i=0;i<frag.length;i++) frag[i].update()
|
|
1158
|
}
|
|
1159
|
}
|
|
1160
|
|
|
1161
|
var AMbody;
|
|
1162
|
var AMnoMathML = false, AMtranslated = false;
|
|
1163
|
|
|
1164
|
function translate(spanclassAM) {
|
|
1165
|
if (!AMtranslated) { // run this only once
|
|
1166
|
AMtranslated = true;
|
|
1167
|
AMinitSymbols();
|
|
1168
|
AMbody = document.getElementsByTagName("body")[0];
|
|
1169
|
AMprocessNode(AMbody, false, spanclassAM);
|
|
1170
|
}
|
|
1171
|
}
|
|
1172
|
|
|
1173
|
if (isIE) { // avoid adding MathPlayer info explicitly to each webpage
|
|
1174
|
document.write("<object id=\"mathplayer\"\
|
|
1175
|
classid=\"clsid:32F66A20-7614-11D4-BD11-00104BD3F987\"></object>");
|
|
1176
|
document.write("<?import namespace=\"m\" implementation=\"#mathplayer\"?>");
|
|
1177
|
}
|
|
1178
|
|
|
1179
|
// GO1.1 Generic onload by Brothercake
|
|
1180
|
// http://www.brothercake.com/
|
|
1181
|
//onload function (replaces the onload="translate()" in the <body> tag)
|
|
1182
|
function generic()
|
|
1183
|
{
|
|
1184
|
translate();
|
|
1185
|
};
|
|
1186
|
//setup onload function
|
|
1187
|
if(typeof window.addEventListener != 'undefined')
|
|
1188
|
{
|
|
1189
|
//.. gecko, safari, konqueror and standard
|
|
1190
|
window.addEventListener('load', generic, false);
|
|
1191
|
}
|
|
1192
|
else if(typeof document.addEventListener != 'undefined')
|
|
1193
|
{
|
|
1194
|
//.. opera 7
|
|
1195
|
document.addEventListener('load', generic, false);
|
|
1196
|
}
|
|
1197
|
else if(typeof window.attachEvent != 'undefined')
|
|
1198
|
{
|
|
1199
|
//.. win/ie
|
|
1200
|
window.attachEvent('onload', generic);
|
|
1201
|
}
|
|
1202
|
//** remove this condition to degrade older browsers
|
|
1203
|
else
|
|
1204
|
{
|
|
1205
|
//.. mac/ie5 and anything else that gets this far
|
|
1206
|
//if there's an existing onload function
|
|
1207
|
if(typeof window.onload == 'function')
|
|
1208
|
{
|
|
1209
|
//store it
|
|
1210
|
var existing = onload;
|
|
1211
|
//add new onload handler
|
|
1212
|
window.onload = function()
|
|
1213
|
{
|
|
1214
|
//call existing onload function
|
|
1215
|
existing();
|
|
1216
|
//call generic onload function
|
|
1217
|
generic();
|
|
1218
|
};
|
|
1219
|
}
|
|
1220
|
else
|
|
1221
|
{
|
|
1222
|
//setup onload function
|
|
1223
|
window.onload = generic;
|
|
1224
|
}
|
|
1225
|
}
|