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Viewing file:     ASCIIMathML.js (30.54 KB)      -rw-r--r--

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if(typeof mathcolor=="undefined"){
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result=AMparseExpr(str,true);
AMnestingDepth--;
if(typeof _24.invisible=="boolean"&&_24.invisible){
node=AMcreateMmlNode("mrow",result[0]);
}else{
node=AMcreateMmlNode("mo",document.createTextNode(_24.output));
node=AMcreateMmlNode("mrow",node);
node.appendChild(result[0]);
}
return [node,result[1]];
case TEXT:
if(_24!=AMquote){
str=AMremoveCharsAndBlanks(str,_24.input.length);
}
if(str.charAt(0)=="{"){
i=str.indexOf("}");
}else{
if(str.charAt(0)=="("){
i=str.indexOf(")");
}else{
if(str.charAt(0)=="["){
i=str.indexOf("]");
}else{
if(_24==AMquote){
i=str.slice(1).indexOf("\"")+1;
}else{
i=0;
}
}
}
}
if(i==-1){
i=str.length;
}
st=str.slice(1,i);
if(st.charAt(0)==" "){
node=AMcreateElementMathML("mspace");
node.setAttribute("width","1ex");
newFrag.appendChild(node);
}
newFrag.appendChild(AMcreateMmlNode(_24.tag,document.createTextNode(st)));
if(st.charAt(st.length-1)==" "){
node=AMcreateElementMathML("mspace");
node.setAttribute("width","1ex");
newFrag.appendChild(node);
}
str=AMremoveCharsAndBlanks(str,i+1);
return [AMcreateMmlNode("mrow",newFrag),str];
case UNARY:
str=AMremoveCharsAndBlanks(str,_24.input.length);
result=AMparseSexpr(str);
if(result[0]==null){
return [AMcreateMmlNode(_24.tag,document.createTextNode(_24.output)),str];
}
if(typeof _24.func=="boolean"&&_24.func){
st=str.charAt(0);
if(st=="^"||st=="_"||st=="/"||st=="|"){
return [AMcreateMmlNode(_24.tag,document.createTextNode(_24.output)),str];
}else{
node=AMcreateMmlNode("mrow",AMcreateMmlNode(_24.tag,document.createTextNode(_24.output)));
node.appendChild(result[0]);
return [node,result[1]];
}
}
AMremoveBrackets(result[0]);
if(_24.input=="sqrt"){
return [AMcreateMmlNode(_24.tag,result[0]),result[1]];
}else{
if(typeof _24.acc=="boolean"&&_24.acc){
node=AMcreateMmlNode(_24.tag,result[0]);
node.appendChild(AMcreateMmlNode("mo",document.createTextNode(_24.output)));
return [node,result[1]];
}else{
if(!isIE&&typeof _24.codes!="undefined"){
for(i=0;i<result[0].childNodes.length;i++){
if(result[0].childNodes[i].nodeName=="mi"||result[0].nodeName=="mi"){
st=(result[0].nodeName=="mi"?result[0].firstChild.nodeValue:result[0].childNodes[i].firstChild.nodeValue);
var _25=[];
for(var j=0;j<st.length;j++){
if(st.charCodeAt(j)>64&&st.charCodeAt(j)<91){
_25=_25+String.fromCharCode(_24.codes[st.charCodeAt(j)-65]);
}else{
_25=_25+st.charAt(j);
}
}
if(result[0].nodeName=="mi"){
result[0]=AMcreateElementMathML("mo").appendChild(document.createTextNode(_25));
}else{
result[0].replaceChild(AMcreateElementMathML("mo").appendChild(document.createTextNode(_25)),result[0].childNodes[i]);
}
}
}
}
node=AMcreateMmlNode(_24.tag,result[0]);
node.setAttribute(_24.atname,_24.atval);
return [node,result[1]];
}
}
case BINARY:
str=AMremoveCharsAndBlanks(str,_24.input.length);
result=AMparseSexpr(str);
if(result[0]==null){
return [AMcreateMmlNode("mo",document.createTextNode(_24.input)),str];
}
AMremoveBrackets(result[0]);
var _27=AMparseSexpr(result[1]);
if(_27[0]==null){
return [AMcreateMmlNode("mo",document.createTextNode(_24.input)),str];
}
AMremoveBrackets(_27[0]);
if(_24.input=="root"||_24.input=="stackrel"){
newFrag.appendChild(_27[0]);
}
newFrag.appendChild(result[0]);
if(_24.input=="frac"){
newFrag.appendChild(_27[0]);
}
return [AMcreateMmlNode(_24.tag,newFrag),_27[1]];
case INFIX:
str=AMremoveCharsAndBlanks(str,_24.input.length);
return [AMcreateMmlNode("mo",document.createTextNode(_24.output)),str];
case SPACE:
str=AMremoveCharsAndBlanks(str,_24.input.length);
node=AMcreateElementMathML("mspace");
node.setAttribute("width","1ex");
newFrag.appendChild(node);
newFrag.appendChild(AMcreateMmlNode(_24.tag,document.createTextNode(_24.output)));
node=AMcreateElementMathML("mspace");
node.setAttribute("width","1ex");
newFrag.appendChild(node);
return [AMcreateMmlNode("mrow",newFrag),str];
case LEFTRIGHT:
AMnestingDepth++;
str=AMremoveCharsAndBlanks(str,_24.input.length);
result=AMparseExpr(str,false);
AMnestingDepth--;
var st="";
if(result[0].lastChild!=null){
st=result[0].lastChild.firstChild.nodeValue;
}
if(st=="|"){
node=AMcreateMmlNode("mo",document.createTextNode(_24.output));
node=AMcreateMmlNode("mrow",node);
node.appendChild(result[0]);
return [node,result[1]];
}else{
node=AMcreateMmlNode("mo",document.createTextNode(_24.output));
node=AMcreateMmlNode("mrow",node);
return [node,str];
}
default:
str=AMremoveCharsAndBlanks(str,_24.input.length);
return [AMcreateMmlNode(_24.tag,document.createTextNode(_24.output)),str];
}
}
function AMparseIexpr(str){
var _2a,sym1,sym2,node,result,underover;
str=AMremoveCharsAndBlanks(str,0);
sym1=AMgetSymbol(str);
result=AMparseSexpr(str);
node=result[0];
str=result[1];
_2a=AMgetSymbol(str);
if(_2a.ttype==INFIX&&_2a.input!="/"){
str=AMremoveCharsAndBlanks(str,_2a.input.length);
result=AMparseSexpr(str);
if(result[0]==null){
result[0]=AMcreateMmlNode("mo",document.createTextNode("\u25a1"));
}else{
AMremoveBrackets(result[0]);
}
str=result[1];
if(_2a.input=="_"){
sym2=AMgetSymbol(str);
underover=(sym1.ttype==UNDEROVER);
if(sym2.input=="^"){
str=AMremoveCharsAndBlanks(str,sym2.input.length);
var _2b=AMparseSexpr(str);
AMremoveBrackets(_2b[0]);
str=_2b[1];
node=AMcreateMmlNode((underover?"munderover":"msubsup"),node);
node.appendChild(result[0]);
node.appendChild(_2b[0]);
node=AMcreateMmlNode("mrow",node);
}else{
node=AMcreateMmlNode((underover?"munder":"msub"),node);
node.appendChild(result[0]);
}
}else{
node=AMcreateMmlNode(_2a.tag,node);
node.appendChild(result[0]);
}
}
return [node,str];
}
function AMparseExpr(str,_2d){
var _2e,node,result,i,nodeList=[],newFrag=document.createDocumentFragment();
do{
str=AMremoveCharsAndBlanks(str,0);
result=AMparseIexpr(str);
node=result[0];
str=result[1];
_2e=AMgetSymbol(str);
if(_2e.ttype==INFIX&&_2e.input=="/"){
str=AMremoveCharsAndBlanks(str,_2e.input.length);
result=AMparseIexpr(str);
if(result[0]==null){
result[0]=AMcreateMmlNode("mo",document.createTextNode("\u25a1"));
}else{
AMremoveBrackets(result[0]);
}
str=result[1];
AMremoveBrackets(node);
node=AMcreateMmlNode(_2e.tag,node);
node.appendChild(result[0]);
newFrag.appendChild(node);
_2e=AMgetSymbol(str);
}else{
if(node!=undefined){
newFrag.appendChild(node);
}
}
}while((_2e.ttype!=RIGHTBRACKET&&(_2e.ttype!=LEFTRIGHT||_2d)||AMnestingDepth==0)&&_2e!=null&&_2e.output!="");
if(_2e.ttype==RIGHTBRACKET||_2e.ttype==LEFTRIGHT){
var len=newFrag.childNodes.length;
if(len>0&&newFrag.childNodes[len-1].nodeName=="mrow"&&len>1&&newFrag.childNodes[len-2].nodeName=="mo"&&newFrag.childNodes[len-2].firstChild.nodeValue==","){
var _30=newFrag.childNodes[len-1].lastChild.firstChild.nodeValue;
if(_30==")"||_30=="]"){
var _31=newFrag.childNodes[len-1].firstChild.firstChild.nodeValue;
if(_31=="("&&_30==")"&&_2e.output!="}"||_31=="["&&_30=="]"){
var pos=[];
var _33=true;
var m=newFrag.childNodes.length;
for(i=0;_33&&i<m;i=i+2){
pos[i]=[];
node=newFrag.childNodes[i];
if(_33){
_33=node.nodeName=="mrow"&&(i==m-1||node.nextSibling.nodeName=="mo"&&node.nextSibling.firstChild.nodeValue==",")&&node.firstChild.firstChild.nodeValue==_31&&node.lastChild.firstChild.nodeValue==_30;
}
if(_33){
for(var j=0;j<node.childNodes.length;j++){
if(node.childNodes[j].firstChild.nodeValue==","){
pos[i][pos[i].length]=j;
}
}
}
if(_33&&i>1){
_33=pos[i].length==pos[i-2].length;
}
}
if(_33){
var row,frag,n,k,table=document.createDocumentFragment();
for(i=0;i<m;i=i+2){
row=document.createDocumentFragment();
frag=document.createDocumentFragment();
node=newFrag.firstChild;
n=node.childNodes.length;
k=0;
node.removeChild(node.firstChild);
for(j=1;j<n-1;j++){
if(typeof pos[i][k]!="undefined"&&j==pos[i][k]){
node.removeChild(node.firstChild);
row.appendChild(AMcreateMmlNode("mtd",frag));
k++;
}else{
frag.appendChild(node.firstChild);
}
}
row.appendChild(AMcreateMmlNode("mtd",frag));
if(newFrag.childNodes.length>2){
newFrag.removeChild(newFrag.firstChild);
newFrag.removeChild(newFrag.firstChild);
}
table.appendChild(AMcreateMmlNode("mtr",row));
}
node=AMcreateMmlNode("mtable",table);
if(typeof _2e.invisible=="boolean"&&_2e.invisible){
node.setAttribute("columnalign","left");
}
newFrag.replaceChild(node,newFrag.firstChild);
}
}
}
}
str=AMremoveCharsAndBlanks(str,_2e.input.length);
if(typeof _2e.invisible!="boolean"||!_2e.invisible){
node=AMcreateMmlNode("mo",document.createTextNode(_2e.output));
newFrag.appendChild(node);
}
}
return [newFrag,str];
}
function AMparseMath(str){
var _38,node=AMcreateElementMathML("mstyle");
if(mathcolor!=""){
node.setAttribute("mathcolor",mathcolor);
}
if(displaystyle){
node.setAttribute("displaystyle","true");
}
if(mathfontfamily!=""){
node.setAttribute("fontfamily",mathfontfamily);
}
AMnestingDepth=0;
node.appendChild(AMparseExpr(str.replace(/^\s+/g,""),false)[0]);
node=AMcreateMmlNode("math",node);
if(showasciiformulaonhover){
node.setAttribute("title",str);
}
if(mathfontfamily!=""&&(isIE||mathfontfamily!="serif")){
var _39=AMcreateElementXHTML("font");
_39.setAttribute("face",mathfontfamily);
_39.appendChild(node);
return _39;
}
return node;
}
function AMstrarr2docFrag(arr,_3b){
var _3c=document.createDocumentFragment();
var _3d=false;
for(var i=0;i<arr.length;i++){
if(_3d){
_3c.appendChild(AMparseMath(arr[i]));
}else{
var _3f=(_3b?arr[i].split("\n\n"):[arr[i]]);
_3c.appendChild(AMcreateElementXHTML("span").appendChild(document.createTextNode(_3f[0])));
for(var j=1;j<_3f.length;j++){
_3c.appendChild(AMcreateElementXHTML("p"));
_3c.appendChild(AMcreateElementXHTML("span").appendChild(document.createTextNode(_3f[j])));
}
}
_3d=!_3d;
}
return _3c;
}
function AMprocessNodeR(n,_42){
var _43,str,arr,frg,i;
if(n.childNodes.length==0){
if((n.nodeType!=8||_42)&&n.parentNode.nodeName!="form"&&n.parentNode.nodeName!="FORM"&&n.parentNode.nodeName!="textarea"&&n.parentNode.nodeName!="TEXTAREA"&&n.parentNode.nodeName!="pre"&&n.parentNode.nodeName!="PRE"){
str=n.nodeValue;
if(!(str==null)){
str=str.replace(/\r\n\r\n/g,"\n\n");
if(doubleblankmathdelimiter){
str=str.replace(/\x20\x20\./g," "+AMdelimiter1+".");
str=str.replace(/\x20\x20,/g," "+AMdelimiter1+",");
str=str.replace(/\x20\x20/g," "+AMdelimiter1+" ");
}
str=str.replace(/\x20+/g," ");
str=str.replace(/\s*\r\n/g," ");
_43=false;
str=str.replace(new RegExp(AMescape2,"g"),function(st){
_43=true;
return "AMescape2";
});
str=str.replace(new RegExp(AMescape1,"g"),function(st){
_43=true;
return "AMescape1";
});
str=str.replace(new RegExp(AMdelimiter2regexp,"g"),AMdelimiter1);
arr=str.split(AMdelimiter1);
for(i=0;i<arr.length;i++){
arr[i]=arr[i].replace(/AMescape2/g,AMdelimiter2).replace(/AMescape1/g,AMdelimiter1);
}
if(arr.length>1||_43){
if(checkForMathML){
checkForMathML=false;
var nd=AMisMathMLavailable();
AMnoMathML=nd!=null;
if(AMnoMathML&&notifyIfNoMathML){
AMbody.insertBefore(nd,AMbody.childNodes[0]);
}
}
if(!AMnoMathML){
frg=AMstrarr2docFrag(arr,n.nodeType==8);
var len=frg.childNodes.length;
n.parentNode.replaceChild(frg,n);
return len-1;
}else{
return 0;
}
}
}
}else{
return 0;
}
}else{
if(n.nodeName!="math"){
for(i=0;i<n.childNodes.length;i++){
i+=AMprocessNodeR(n.childNodes[i],_42);
}
}
}
return 0;
}
function AMprocessNode(n,_49,_4a){
var _4b,st;
if(_4a!=null){
_4b=document.getElementsByTagName("span");
for(var i=0;i<_4b.length;i++){
if(_4b[i].className=="AM"){
AMprocessNodeR(_4b[i],_49);
}
}
}else{
try{
st=n.innerHTML;
}
catch(err){
}
if(st==null||st.indexOf(AMdelimiter1)!=-1||st.indexOf(AMdelimiter2)!=-1){
AMprocessNodeR(n,_49);
}
}
if(isIE){
_4b=document.getElementsByTagName("math");
for(var i=0;i<_4b.length;i++){
_4b[i].update();
}
}
}
var AMbody;
var AMnoMathML=false,AMtranslated=false;
function translate(_4d){
if(!AMtranslated){
AMtranslated=true;
AMinitSymbols();
AMbody=document.getElementsByTagName("body")[0];
AMprocessNode(AMbody,false,_4d);
}
}
if(isIE){
document.write("<object id=\"mathplayer\"  classid=\"clsid:32F66A20-7614-11D4-BD11-00104BD3F987\"></object>");
document.write("<?import namespace=\"m\" implementation=\"#mathplayer\"?>");
}
function generic(){
translate();
}
if(typeof window.addEventListener!="undefined"){
window.addEventListener("load",generic,false);
}else{
if(typeof document.addEventListener!="undefined"){
document.addEventListener("load",generic,false);
}else{
if(typeof window.attachEvent!="undefined"){
window.attachEvent("onload",generic);
}else{
if(typeof window.onload=="function"){
var existing=onload;
window.onload=function(){
existing();
generic();
};
}else{
window.onload=generic;
}
}
}
}