Added KH 3.3.0

includes/kohana/system/utf8/strspn.php

@@ -0,0 +1,30 @@
+<?php defined('SYSPATH') OR die('No direct script access.');
+/**
+ * UTF8::strspn
+ *
+ * @package    Kohana
+ * @author     Kohana Team
+ * @copyright  (c) 2007-2012 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;
+}