Micro-templating

micro.js

(function() {
  var viewpower = function (str, data){
    var fn = new Function("obj",
      "var p=[],print=function(){p.push.apply(p,arguments);};" +
      "with(obj){p.push('" +

      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('');");

    return fn(data);
  };
})();