30 lines
996 B
PHP
30 lines
996 B
PHP
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<?php defined('SYSPATH') OR die('No direct script access.');
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/**
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* UTF8::strcspn
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*
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* @package Kohana
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* @author Kohana Team
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* @copyright (c) 2007-2012 Kohana Team
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* @copyright (c) 2005 Harry Fuecks
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* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
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*/
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function _strcspn($str, $mask, $offset = NULL, $length = NULL)
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{
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if ($str == '' OR $mask == '')
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return 0;
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if (UTF8::is_ascii($str) AND UTF8::is_ascii($mask))
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return ($offset === NULL) ? strcspn($str, $mask) : (($length === NULL) ? strcspn($str, $mask, $offset) : strcspn($str, $mask, $offset, $length));
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if ($offset !== NULL OR $length !== NULL)
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{
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$str = UTF8::substr($str, $offset, $length);
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}
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// Escape these characters: - [ ] . : \ ^ /
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// The . and : are escaped to prevent possible warnings about POSIX regex elements
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$mask = preg_replace('#[-[\].:\\\\^/]#', '\\\\$0', $mask);
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preg_match('/^[^'.$mask.']+/u', $str, $matches);
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return isset($matches[0]) ? UTF8::strlen($matches[0]) : 0;
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}
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