mirror of
https://github.com/joomla/joomla-cms.git
synced 2024-08-26 13:09:46 +00:00
42 lines
894 B
PHP
42 lines
894 B
PHP
<?php
|
|
/**
|
|
* @version $Id$
|
|
* @package utf8
|
|
* @subpackage strings
|
|
*/
|
|
|
|
//---------------------------------------------------------------
|
|
/**
|
|
* UTF-8 aware alternative to strcspn
|
|
* Find length of initial segment not matching mask
|
|
* Note: requires utf8_strlen and utf8_substr (if start, length are used)
|
|
* @param string
|
|
* @return int
|
|
* @see http://www.php.net/strcspn
|
|
* @see utf8_strlen
|
|
* @package utf8
|
|
* @subpackage strings
|
|
*/
|
|
function utf8_strcspn($str, $mask, $start = NULL, $length = NULL) {
|
|
|
|
if ( empty($mask) || strlen($mask) == 0 ) {
|
|
return NULL;
|
|
}
|
|
|
|
$mask = preg_replace('!([\\\\\\-\\]\\[/^])!','\\\${1}',$mask);
|
|
|
|
if ( $start !== NULL || $length !== NULL ) {
|
|
$str = utf8_substr($str, $start, $length);
|
|
}
|
|
|
|
preg_match('/^[^'.$mask.']+/u',$str, $matches);
|
|
|
|
if ( isset($matches[0]) ) {
|
|
return utf8_strlen($matches[0]);
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|