blob: 779794a0b3d2735c844d391680c61d1a68f84885 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
<?php
/**
* Validates based on {ident} CSS grammar production
*/
class HTMLPurifier_AttrDef_CSS_Ident extends HTMLPurifier_AttrDef
{
public function validate($string, $config, $context) {
$string = trim($string);
// early abort: '' and '0' (strings that convert to false) are invalid
if (!$string) return false;
$pattern = '/^(-?[A-Za-z_][A-Za-z_\-0-9]*)$/';
if (!preg_match($pattern, $string)) return false;
return $string;
}
}
// vim: et sw=4 sts=4
|
