File xoops_lib\modules\protector\library\HTMLPurifier\AttrDef\HTML\Class.php

1:	<?php
2:
3:	/**
4:	* Implements special behavior for class attribute (normally NMTOKENS)
5:	*/
6:	class HTMLPurifier_AttrDef_HTML_Class extends HTMLPurifier_AttrDef_HTML_Nmtokens
7:	{
8:	/**
9:	* @param string $string
10:	* @param HTMLPurifier_Config $config
11:	* @param HTMLPurifier_Context $context
12:	* @return bool\|string
13:	*/
14:	protected function split($string, $config, $context)
15:	{
16:	// really, this twiddle should be lazy loaded
17:	$name = $config->getDefinition('HTML')->doctype->name;
18:	if ($name == "XHTML 1.1" \|\| $name == "XHTML 2.0") {
19:	return parent::split($string, $config, $context);
20:	} else {
21:	return preg_split('/\s+/', $string);
22:	}
23:	}
24:
25:	/**
26:	* @param array $tokens
27:	* @param HTMLPurifier_Config $config
28:	* @param HTMLPurifier_Context $context
29:	* @return array
30:	*/
31:	protected function filter($tokens, $config, $context)
32:	{
33:	$allowed = $config->get('Attr.AllowedClasses');
34:	$forbidden = $config->get('Attr.ForbiddenClasses');
35:	$ret = array();
36:	foreach ($tokens as $token) {
37:	if (($allowed === null \|\| isset($allowed[$token])) &&
38:	!isset($forbidden[$token]) &&
39:	// We need this O(n) check because of PHP's array
40:	// implementation that casts -0 to 0.
41:	!in_array($token, $ret, true)
42:	) {
43:	$ret[] = $token;
44:	}
45:	}
46:	return $ret;
47:	}
48:	}
49: