CRM/Utils/JS.php

   1 <?php
   2 /*
   3 +--------------------------------------------------------------------+
   4 | CiviCRM version 4.6                                                |
   5 +--------------------------------------------------------------------+
   6 | Copyright CiviCRM LLC (c) 2004-2014                                |
   7 +--------------------------------------------------------------------+
   8 | This file is a part of CiviCRM.                                    |
   9 |                                                                    |
  10 | CiviCRM is free software; you can copy, modify, and distribute it  |
  11 | under the terms of the GNU Affero General Public License           |
  12 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
  13 |                                                                    |
  14 | CiviCRM is distributed in the hope that it will be useful, but     |
  15 | WITHOUT ANY WARRANTY; without even the implied warranty of         |
  16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
  17 | See the GNU Affero General Public License for more details.        |
  18 |                                                                    |
  19 | You should have received a copy of the GNU Affero General Public   |
  20 | License and the CiviCRM Licensing Exception along                  |
  21 | with this program; if not, contact CiviCRM LLC                     |
  22 | at info[AT]civicrm[DOT]org. If you have questions about the        |
  23 | GNU Affero General Public License or the licensing of CiviCRM,     |
  24 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
  25 +--------------------------------------------------------------------+
  26 */
  27
  28 /**
  29  * Parse Javascript content and extract translatable strings.
  30  *
  31  * @package CRM
  32  * @copyright CiviCRM LLC (c) 2004-2014
  33  * $Id$
  34  *
  35  */
  36 class CRM_Utils_JS {
  37   /**
  38    * Parse a javascript file for translatable strings
  39    *
  40    * @param string $jsCode
  41    *   Raw Javascript code.
  42    * @return array
  43    *   Array of translatable strings
  44    */
  45   public static function parseStrings($jsCode) {
  46     $strings = array();
  47     // Match all calls to ts() in an array.
  48     // Note: \s also matches newlines with the 's' modifier.
  49     preg_match_all('~
  50       [^\w]ts\s*                                    # match "ts" with whitespace
  51       \(\s*                                         # match "(" argument list start
  52       ((?:(?:\'(?:\\\\\'|[^\'])*\'|"(?:\\\\"|[^"])*")(?:\s*\+\s*)?)+)\s*
  53       [,\)]                                         # match ")" or "," to finish
  54       ~sx', $jsCode, $matches);
  55     foreach ($matches[1] as $text) {
  56       $quote = $text[0];
  57       // Remove newlines
  58       $text = str_replace("\\\n", '', $text);
  59       // Unescape escaped quotes
  60       $text = str_replace('\\' . $quote, $quote, $text);
  61       // Remove end quotes
  62       $text = substr(ltrim($text, $quote), 0, -1);
  63       $strings[$text] = $text;
  64     }
  65     return array_values($strings);
  66   }
  67
  68 }