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   1  <?php
   2  /**
   3   * Smarty shared plugin
   4   * @package Smarty
   5   * @subpackage plugins
   6   */
   7  
   8  
   9  /**
  10   * escape_special_chars common function
  11   *
  12   * Function: smarty_function_escape_special_chars<br>
  13   * Purpose:  used by other smarty functions to escape
  14   *           special chars except for already escaped ones
  15   * @author   Monte Ohrt <monte at ohrt dot com>
  16   * @param string
  17   * @return string
  18   */
  19  function smarty_function_escape_special_chars($string)
  20  {
  21      if(!is_array($string)) {
  22          $string = preg_replace('!&(#?\w+);!', '%%%SMARTY_START%%%\\1%%%SMARTY_END%%%', $string);
  23          $string = htmlspecialchars($string);
  24          $string = str_replace(array('%%%SMARTY_START%%%','%%%SMARTY_END%%%'), array('&',';'), $string);
  25      }
  26      return $string;
  27  }
  28  
  29  /* vim: set expandtab: */
  30  
  31  ?>