<?php defined('SYSPATH') or die('No direct script access.'); /** * UTF8::strspn * * @package Kohana * @author Kohana Team * @copyright (c) 2007-2011 Kohana Team * @copyright (c) 2005 Harry Fuecks * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt */ function _strspn($str, $mask, $offset = NULL, $length = NULL) { if ($str == '' OR $mask == '') return 0; if (UTF8::is_ascii($str) AND UTF8::is_ascii($mask)) return ($offset === NULL) ? strspn($str, $mask) : (($length === NULL) ? strspn($str, $mask, $offset) : strspn($str, $mask, $offset, $length)); if ($offset !== NULL OR $length !== NULL) { $str = UTF8::substr($str, $offset, $length); } // Escape these characters: - [ ] . : \ ^ / // The . and : are escaped to prevent possible warnings about POSIX regex elements $mask = preg_replace('#[-[\].:\\\\^/]#', '\\\\$0', $mask); preg_match('/^[^'.$mask.']+/u', $str, $matches); return isset($matches[0]) ? UTF8::strlen($matches[0]) : 0; }