convert wild card string to

gistfile1.js

function wildCardToRegexp(wildCardPattern){
  var regexpOperator = '^$\\.+?()[]{}|';
  for(var i = 0; i < regexpOperator.length; i++){
    var operator = regexpOperator[i];
    wildCardPattern = wildCardPattern.replace(operator,"\\"+operator);
  }
  return wildCardPattern.replace("*",".*");
}