<?php 
/** 
 * Smarty plugin 
 * @package Smarty 
 * @subpackage plugins 
 */ 
 
 
/** 
 * Smarty regex_replace modifier plugin 
 * 
 * Type:     modifier<br> 
 * Name:     regex_replace<br> 
 * Purpose:  regular expression search/replace 
 * @link http://smarty.php.net/manual/en/language.modifier.regex.replace.php 
 *          regex_replace (Smarty online manual) 
 * @author   Monte Ohrt <monte at ohrt dot com> 
 * @param string 
 * @param string|array 
 * @param string|array 
 * @return string 
 */ 
function smarty_modifier_regex_replace($string, $search, $replace) 
{ 
    if(is_array($search)) { 
      foreach($search as $idx => $s) 
        $search[$idx] = _smarty_regex_replace_check($s); 
    } else { 
      $search = _smarty_regex_replace_check($search); 
    }        
 
    return preg_replace($search, $replace, $string); 
} 
 
function _smarty_regex_replace_check($search) 
{ 
    if (($pos = strpos($search,"\0")) !== false) 
      $search = substr($search,0,$pos); 
    if (preg_match('!([a-zA-Z\s]+)$!s', $search, $match) && (strpos($match[1], 'e') !== false)) { 
        /* remove eval-modifier from $search */ 
        $search = substr($search, 0, -strlen($match[1])) . preg_replace('![e\s]+!', '', $match[1]); 
    } 
    return $search; 
} 
 
/* vim: set expandtab: */ 
 
?> 
 
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