mirror of
https://github.com/vichan-devel/vichan.git
synced 2024-12-16 17:36:01 +01:00
25 lines
541 B
PHP
25 lines
541 B
PHP
|
<?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
|