JavaScript模板引擎使用

1. [代码]tmpl.js     
// Simple JavaScript Templating
// John Resig - - MIT Licensed
(function() {
var cache = {};


this.tmpl = function tmpl(str, data) {

// Figure out if we're getting a template, or if we need to
// load the template - and be sure to cache the result.
var fn = 
!/\W/.test(str) 
? 
cache[str] = cache[str] || tmpl(document.getElementById(str).innerHTML) 
:
// Generate a reusable function that will serve as a template
// generator (and which will be cached).
new Function(
"obj", "var p=[],print=function(){p.push.apply(p,arguments);};" +

// Introduce the data as local variables using with(){}
"with(obj){p.push('" +

// Convert the template into pure JavaScript
str
.replace(/[\r\t\n]/g, " ")
.split("<%").join("\t")
.replace(/((^|%>)[^\t]*)'/g, "$1\r")
.replace(/\t=(.*?)%>/g, "',$1,'")
.split("\t")
.join("');")
.split("%>")
.join("p.push('")
.split("\r")
.join("\\'") + 
"');}return p.join('');"
); // Function ends


// Provide some basic currying to the user
return data ? fn(data) : fn;
};
})(); 
2. []index.html     
"">