* Name: truncate
* Purpose: Truncate a string to a certain length if necessary, * optionally splitting in the middle of a word, and * appending the $etc string or inserting $etc into the middle. * @link http://smarty.php.net/manual/en/language.modifier.truncate.php * truncate (Smarty online manual) * @author Monte Ohrt * @param string * @param integer * @param string * @param boolean * @param boolean * @return string */ function smarty_modifier_truncate_cn($string, $length = 80, $etc = '...', $code = 'GBK') { if ($length == 0) return ''; if ($code == 'UTF-8') { $pa = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/"; }else{ $pa = "/[\x01-\x7f]|[\xa1-\xff][\xa1-\xff]/"; } preg_match_all($pa, $string, $t_string); if (count($t_string[0]) > $length) return join('', array_slice($t_string[0], 0, $length)) . $etc; return join('', array_slice($t_string[0], 0, $length)); } /* vim: set expandtab: */ ?>