util.js 2.7 KB

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  1. /* ***** BEGIN LICENSE BLOCK *****
  2. * Distributed under the BSD license:
  3. *
  4. * Copyright (c) 2012, Ajax.org B.V.
  5. * All rights reserved.
  6. *
  7. * Redistribution and use in source and binary forms, with or without
  8. * modification, are permitted provided that the following conditions are met:
  9. * * Redistributions of source code must retain the above copyright
  10. * notice, this list of conditions and the following disclaimer.
  11. * * Redistributions in binary form must reproduce the above copyright
  12. * notice, this list of conditions and the following disclaimer in the
  13. * documentation and/or other materials provided with the distribution.
  14. * * Neither the name of Ajax.org B.V. nor the
  15. * names of its contributors may be used to endorse or promote products
  16. * derived from this software without specific prior written permission.
  17. *
  18. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  19. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21. * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
  22. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  24. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  25. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28. *
  29. * ***** END LICENSE BLOCK ***** */
  30. define(function(require, exports, module) {
  31. "use strict";
  32. exports.parForEach = function(array, fn, callback) {
  33. var completed = 0;
  34. var arLength = array.length;
  35. if (arLength === 0)
  36. callback();
  37. for (var i = 0; i < arLength; i++) {
  38. fn(array[i], function(result, err) {
  39. completed++;
  40. if (completed === arLength)
  41. callback(result, err);
  42. });
  43. }
  44. };
  45. var ID_REGEX = /[a-zA-Z_0-9\$\-\u00A2-\uFFFF]/;
  46. exports.retrievePrecedingIdentifier = function(text, pos, regex) {
  47. regex = regex || ID_REGEX;
  48. var buf = [];
  49. for (var i = pos-1; i >= 0; i--) {
  50. if (regex.test(text[i]))
  51. buf.push(text[i]);
  52. else
  53. break;
  54. }
  55. return buf.reverse().join("");
  56. };
  57. exports.retrieveFollowingIdentifier = function(text, pos, regex) {
  58. regex = regex || ID_REGEX;
  59. var buf = [];
  60. for (var i = pos; i < text.length; i++) {
  61. if (regex.test(text[i]))
  62. buf.push(text[i]);
  63. else
  64. break;
  65. }
  66. return buf;
  67. };
  68. });