safe_supplant.js

// modified from http://javascript.crockford.com/remedial.html
String.prototype.safe_supplant = function (o) {
  return this.replace(/{([^{}]*)}/g, function (a, b) {
    var r = o[b];
    if (typeof r === 'string') {
      return r.replace(/</g, '&lt;').replace(/"/g, '&quot;').replace(/'/g, '&apos;');
    } else {
      return (typeof r === 'number') ? r : a;
    }
  });
};