in4lio

// Takes arguments and produces an array of functions that accept context.
function handle_args() {
  var args = Array.prototype.slice.call(arguments);
  return args.map(function(arg) {
    if (arg instanceof Function) return arg; // Presumably already a contex-accepting function.
    if (arg instanceof Array) return and.apply(this, arg); // Make arrays behave as and.
    // Presuming a string, build a function to check.
    var my_regex = new RegExp(arg.toString(), 'i');
    return function(context) {
      return context.search(my_regex) > -1;