格式化js代码

function core_analysis(){
var str=" ", c="", lastState="", seq, intNextQuote, intTemp, intCount, intWordStart;
spnProcess.innerHTML=parseFloat(glbP/glbStr.length*100).toFixed(2)+"%  ( "+glbP+" / "+glbStr.length+")";
for(var i=glbP;i<glbStr.length;i++){
c=glbStr.charAt(i);
str+=htmlEncode(c);
switch(c){
case "\r": case " ": case "\t":
if(lastState=="\r\n"){str=" ";break;}
if(c.match(/\W/)&&glbStr.charAt(i-1).match(/\w/)){
str=str.substring(0,str.length-htmlEncode(c).length);
str=str.replace(regKW,clKW).replace(regObj,clObj).replace(regMP,clMP)+htmlEncode(c);
}
break;
case "\n": case ";":
if(lastState=="\r\n"){str=" ";break;}
outputLn(str);
str=" ";
lastState="\r\n";
if(i-glbP>200){
glbP=i+1;
glbTimer=setTimeout(core_analysis);
return;
}
break;
case "\"":
intNextQuote=i;
while(intNextQuote!=-1&&intNextQuote<glbStr.length){
intNextQuote=glbStr.indexOf("\"",intNextQuote+1);
if(intNextQuote==-1||glbStr.charAt(intNextQuote-1)!="\\")break;
intCount=0; intTemp=intNextQuote;
while(glbStr.charAt(--intTemp)=="\\")intCount++;
if(intCount%2==0)break;
}
if(intNextQuote==-1)break;
str+="<span class=\"quote\">"+htmlEncode(glbStr.substring(i+1,intNextQuote))+"<\/span>\"";
i=intNextQuote;
lastState="";
break;
case "\'":
intNextQuote=i;
while(intNextQuote!=-1&&intNextQuote<glbStr.length){
intNextQuote=glbStr.indexOf("\'",intNextQuote+1);
if(intNextQuote==-1||glbStr.charAt(intNextQuote-1)!="\\")break;
intCount=0; intTemp=intNextQuote;
while(glbStr.charAt(--intTemp)=="\\")intCount++;
if(intCount%2==0)break;
}
if(intNextQuote==-1)break;
str+="<span class=\"quote\">"+htmlEncode(glbStr.substring(i+1,intNextQuote))+"<\/span>\'";
i=intNextQuote;
lastState="";
break;
case "\/":
if(glbStr.charAt(i+1)=="\/"){
intNextQuote=i;
intNextQuote=glbStr.indexOf("\r\n",intNextQuote+1);
if(intNextQuote==-1)intNextQuote=glbStr.length;
str=str.substring(0,str.length-1);
str+="<span class=\"comments\">\/"+htmlEncode(glbStr.substring(i+1,intNextQuote))+"<\/span>";
i=intNextQuote;
}else if(glbStr.charAt(i+1)=="*"){
intNextQuote=i;
intNextQuote=glbStr.indexOf("*\/",intNextQuote+1);
if(intNextQuote==-1)return;
str=str.substring(0,str.length-1);
str+="<span class=\"comments\">\/"+htmlEncode(glbStr.substring(i+1,intNextQuote))+"*\/<\/span>";
i=intNextQuote+1;
}else if(str.match(/[=(][ \t]*\//)){
intNextQuote=i;
while(intNextQuote!=-1&&intNextQuote<glbStr.length){
intNextQuote=glbStr.indexOf("\/",intNextQuote+1);
if(intNextQuote==-1||glbStr.charAt(intNextQuote-1)!="\\")break;
intCount=0; intTemp=intNextQuote;
while(glbStr.charAt(--intTemp)=="\\")intCount++;
if(intCount%2==0)break;
}
if(intNextQuote==-1)break;
str+="<span class=\"regexp\">"+htmlEncode(glbStr.substring(i+1,intNextQuote))+"<\/span>\/";
i=intNextQuote;
lastState="";
}
lastState="";
break;
case "{":
outputLn(str);
str=" ";
seq=document.createElement("div");
seq.className="indent";
curRe.appendChild(seq);
curRe=seq;
lastState="\r\n";
if(i-glbP>200){
glbP=i+1;
glbTimer=setTimeout(core_analysis);
return;
}
break;
case "}":
outputLn(str.substring(0,str.length-1));
str="} ";
lastState="";
curRe=curRe.parentNode;
break;
default:
if(c.match(/\w/)&&glbStr.charAt(i-1).match(/\W/)){intWordStart=i;}
if(c.match(/\W/)&&glbStr.charAt(i-1).match(/\w/)){
str=str.substring(0,str.length-htmlEncode(c).length);
str=str.replace(regKW,clKW).replace(regObj,clObj).replace(regMP,clMP)+htmlEncode(c);
}
lastState="";
break;
}
}
if(i==glbStr.length){
if(str!=""){ outputLn(str); str=" "; }
stopExec();
}
}