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   1  <?php
   2  /**
   3   * Displays message signatures marked by a '-- ' in the style of the
   4   * CSS class "signature". Class names inside the signature are
   5   * prefixed with "signature-".
   6   *
   7   * $Horde: framework/Text_Filter/Filter/dimsignature.php,v 1.2.10.6 2006/08/17 12:29:55 jan Exp $
   8   *
   9   * Copyright 2004-2006 Jan Schneider <jan@horde.org>
  10   *
  11   * See the enclosed file COPYING for license information (LGPL). If you did
  12   * not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
  13   *
  14   * @author  Jan Schneider <jan@horde.org>
  15   * @since   Horde 3.0
  16   * @package Horde_Text
  17   */
  18  class Text_Filter_dimsignature extends Text_Filter {
  19  
  20      /**
  21       * Executes any code necessaray after applying the filter
  22       * patterns.
  23       *
  24       * @param string $text  The text after the filtering.
  25       *
  26       * @return string  The modified text.
  27       */
  28      function postProcess($text)
  29      {
  30          $parts = preg_split('|(\n--\s*(<br />)?\r?\n)|', $text, 2, PREG_SPLIT_DELIM_CAPTURE);
  31          if (count($parts) > 3) {
  32              $text = array_shift($parts);
  33              $text .= '<span class="signature">' . $parts[0];
  34              $text .= preg_replace('|class="([^"]+)"|', 'class="signature-\1"', $parts[2]);
  35              $text .= '</span>';
  36          }
  37  
  38          return $text;
  39      }
  40  
  41  }