library/smarty/libs/plugins/modifier.regex_replace.php
changeset 0 4869aea77e21
equal deleted inserted replaced
-1:000000000000 0:4869aea77e21
       
     1 <?php
       
     2 /**
       
     3  * Smarty plugin
       
     4  *
       
     5  * @package    Smarty
       
     6  * @subpackage PluginsModifier
       
     7  */
       
     8 
       
     9 /**
       
    10  * Smarty regex_replace modifier plugin
       
    11  * Type:     modifier<br>
       
    12  * Name:     regex_replace<br>
       
    13  * Purpose:  regular expression search/replace
       
    14  *
       
    15  * @link    http://smarty.php.net/manual/en/language.modifier.regex.replace.php
       
    16  *          regex_replace (Smarty online manual)
       
    17  * @author  Monte Ohrt <monte at ohrt dot com>
       
    18  *
       
    19  * @param string $string input string
       
    20  * @param string|array $search regular expression(s) to search for
       
    21  * @param string|array $replace string(s) that should be replaced
       
    22  *
       
    23  * @return string
       
    24  */
       
    25 function smarty_modifier_regex_replace($string, $search, $replace) {
       
    26     if (is_array($search)) {
       
    27         foreach ($search as $idx => $s) {
       
    28             $search[$idx] = _smarty_regex_replace_check($s);
       
    29         }
       
    30     } else {
       
    31         $search = _smarty_regex_replace_check($search);
       
    32     }
       
    33 
       
    34     return preg_replace($search, $replace, $string);
       
    35 }
       
    36 
       
    37 /**
       
    38  * @param  string $search string(s) that should be replaced
       
    39  *
       
    40  * @return string
       
    41  * @ignore
       
    42  */
       
    43 function _smarty_regex_replace_check($search) {
       
    44     // null-byte injection detection
       
    45     // anything behind the first null-byte is ignored
       
    46     if (($pos = strpos($search, "\0")) !== false) {
       
    47         $search = substr($search, 0, $pos);
       
    48     }
       
    49     // remove eval-modifier from $search
       
    50     if (preg_match('!([a-zA-Z\s]+)$!s', $search, $match) && (strpos($match[1], 'e') !== false)) {
       
    51         $search = substr($search, 0, -strlen($match[1])) . preg_replace('![e\s]+!', '', $match[1]);
       
    52     }
       
    53 
       
    54     return $search;
       
    55 }