Prototype

Just a small bug in:

var Template = Class.create({
  ...
  evaluate: function(object) {
    if (Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();

    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return '';

if a toTemplateReplacements() function ever returns null the gsub match function returns '' eating up the "before" character.

Here is a repro:

(a = {}).toTemplateReplacements = function () {return null;}
(new Template('Hi "#{name}", how are you?')).evaluate(a)

Outputs "Hi ", how are you?" instead of "Hi "", how are you?"

Nir