1. function easyTpl(tpl, data){
    2.     var re = /{{([a-zA-Z$_][a-zA-Z$_0-9\.]*)}}/g;
    3.     return tpl.replace(re, function(raw, key, offset, string){
    4.       var paths = key.split('.'),
    5.           lookup = data;
    6.       while(paths.length>0){
    7.         lookup = lookup[paths.shift()];
    8.       }
    9.       return lookup||raw;
    10.     }); 
    11. }
    12. var data = {
    13.     name: 'rashomon',
    14.     dog: {
    15.         color: 'yellow',
    16.         age: 2
    17.     }
    18. };
    19. var tpl = 'Hello, my name is  {{name}}. I have a {{dog.age}} year old  {{dog.color}} dog.';
    20. console.log(easyTpl(tpl, data));