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   1  (function () {
   2    'use strict';
   3  
   4    /**
   5     * @copyright  (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
   6     * @license    GNU General Public License version 2 or later; see LICENSE.txt
   7     */
   8    (function () {
   9      var options = window.Joomla.getOptions('xtd-readmore');
  10  
  11      window.insertReadmore = function (editor) {
  12        if (!options) {
  13          // Something went wrong!
  14          throw new Error('XTD Button \'read more\' not properly initialized');
  15        }
  16  
  17        var content = window.Joomla.editors.instances[editor].getValue();
  18  
  19        if (!content) {
  20          Joomla.editors.instances[editor].replaceSelection('<hr id="system-readmore">');
  21        } else if (content && !content.match(/<hr\s+id=("|')system-readmore("|')\s*\/*>/i)) {
  22          Joomla.editors.instances[editor].replaceSelection('<hr id="system-readmore">');
  23        } else {
  24          // @todo replace with joomla-alert
  25          alert(options.exists);
  26          return false;
  27        }
  28  
  29        return true;
  30      };
  31    })();
  32  
  33  })();