86 lines
2.8 KiB
JavaScript
86 lines
2.8 KiB
JavaScript
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/* March 19, 2004 MathHTML (c) Peter Jipsen http://www.chapman.edu/~jipsen
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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, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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(at http://www.gnu.org/copyleft/gpl.html) for more details.*/
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function convertMath(node) {// for Gecko
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if (node.nodeType==1) {
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var newnode =
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document.createElementNS("http://www.w3.org/1998/Math/MathML",
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node.nodeName.toLowerCase());
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for(var i=0; i < node.attributes.length; i++) {
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if (node.attributes[i].nodeName == 'displaystyle') {
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newnode.setAttribute(node.attributes[i].nodeName,node.attributes[i].nodeValue);
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}
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}
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for (var i=0; i<node.childNodes.length; i++) {
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var st = node.childNodes[i].nodeValue;
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if (st==null || st.slice(0,1)!=" " && st.slice(0,1)!="\n")
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newnode.appendChild(convertMath(node.childNodes[i]));
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}
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return newnode;
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}
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else return node;
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}
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function convert() {
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if (document.createElementNS) {
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var mmlnode = document.getElementsByTagName("span");
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for (var i=0; i<mmlnode.length; i++) {
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var tmp_node = mmlnode[i];
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if (tmp_node.className == 'asciimath') {
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tmp_node.replaceChild(convertMath(tmp_node.firstChild),tmp_node.firstChild);
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/*
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for (var j=0;j<tmp_node.childNodes.length;j++) {
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if (tmp_node.childNodes[j].nodeType != 3) {
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}
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}
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*/
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}
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}
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} else {
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var st,node,newnode;
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var mmlnode = document.getElementsByTagName("math");
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for (var i=0; i<mmlnode.length; i++) {
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var str = "";
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node = mmlnode[i];
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while (node.nodeName!="/MATH" && node.nextSibling) {
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st = node.nodeName.toLowerCase();
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if (st=="#text") {
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str += node.nodeValue;
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} else {
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str += (st.slice(0,1)=="/" ? "</m:"+st.slice(1) : "<m:"+st);
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if (st.slice(0,1)!="/") {
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for(var j=0; j < node.attributes.length; j++) {
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if (node.attributes[j].nodeValue!="italic" &&
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node.attributes[j].nodeValue!="" &&
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node.attributes[j].nodeValue!="inherit" &&
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node.attributes[j].nodeValue!=undefined) {
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str += " "+node.attributes[j].nodeName+"="+
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"\""+node.attributes[j].nodeValue+"\"";
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}
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}
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}
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str += ">";
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}
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node = node.nextSibling;
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node.parentNode.removeChild(node.previousSibling);
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}
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if (str != '') {
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str += "</m:math>";
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newnode = document.createElement("span");
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node.parentNode.replaceChild(newnode,node);
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newnode.innerHTML = str;
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}
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}
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}
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}
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