71 lines
2.5 KiB
JavaScript
71 lines
2.5 KiB
JavaScript
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/*
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March 19, 2004 MathHTML (c) Peter Jipsen http://www.chapman.edu/~jipsen
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Released under the GNU General Public License version 2 or later.
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See the GNU General Public License (at http://www.gnu.org/copyleft/gpl.html)
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for more details.
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*/
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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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newnode.setAttribute(node.attributes[i].nodeName,
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node.attributes[i].nodeValue);
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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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var mmlnode = document.getElementsByTagName("math");
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var st,str,node,newnode;
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for (var i=0; i<mmlnode.length; i++)
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if (document.createElementNS!=null)
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mmlnode[i].parentNode.replaceChild(convertMath(mmlnode[i]),mmlnode[i]);
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else { // convert for IE
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str = "";
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node = mmlnode[i];
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while (node.nodeName!="/MATH") {
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st = node.nodeName.toLowerCase();
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if (st=="#text") 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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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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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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if (document.createElementNS==null) {
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document.write("<object id=\"mathplayer\"\
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classid=\"clsid:32F66A20-7614-11D4-BD11-00104BD3F987\"></object>");
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document.write("<?import namespace=\"m\" implementation=\"#mathplayer\"?>");
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}
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if(typeof window.addEventListener != 'undefined'){
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window.addEventListener('load', convert, false);
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}
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if(typeof window.attachEvent != 'undefined') {
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window.attachEvent('onload', convert);
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}
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