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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   * @param string
  16   * @return string
  17   */
  18  function smarty_function_escape_special_chars($string)
  19  {
  20      if(!is_array($string)) {
  21          $string = preg_replace('!&(#?\w+);!', '%%%SMARTY_START%%%\\1%%%SMARTY_END%%%', $string);
  22          $string = htmlspecialchars($string);
  23          $string = str_replace(array('%%%SMARTY_START%%%','%%%SMARTY_END%%%'), array('&',';'), $string);
  24      }
  25      return $string;
  26  }
  27  
  28  /* vim: set expandtab: */
  29  
  30  ?>