/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

export function match(str, regex, flags, doc) {
  var docFrag = doc.createDocumentFragment();
  var re = new RegExp(regex, flags);
  var matches = str.match(re);
  if (matches != null) {
    for (var i = 0; i < matches.length; ++i) {
      var match = matches[i];
      var elem = doc.createElementNS(null, "match");
      var text = doc.createTextNode(match ? match : "");
      elem.appendChild(text);
      docFrag.appendChild(elem);
    }
  }
  return docFrag;
}

export function replace(str, regex, flags, replace) {
  var re = new RegExp(regex, flags);

  return str.replace(re, replace);
}

export function test(str, regex, flags) {
  var re = new RegExp(regex, flags);

  return re.test(str);
}