JavaScript 页面模板引擎

varTemplateEngine=function(html,options){
varre=/<%([^%>]+)?%>/g,reExp=/(^()?(if|for|else|switch|case|break|{|}))(.*)?/g,code='varr=[];\n',cursor=0;
varadd=function(line,js){
js?(code+=line.match(reExp)?line+'\n':'r.push('+line+');\n'):
(code+=line!=''?'r.push("'+line.replace(/"/g,'\\"')+'");\n':'');
returnadd;
}
while(match=re.exec(html)){
add(html.slice(cursor,match.index))(match[1],true);
cursor=match.index+match[0].length;
}
add(html.substr(cursor,html.length-cursor));
code+='returnr.join("");';
returnnewFunction(code.replace(/[\r\t\n]/g,'')).apply(options);
}</%([^%>