mirror of
https://github.com/ezyang/htmlpurifier.git
synced 2024-09-20 19:25:19 +00:00
bb0435bdd4
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@131 48356398-32a2-884e-a903-53898d9a118a
37 lines
839 B
PHP
37 lines
839 B
PHP
<?php
|
|
|
|
require_once 'HTMLPurifier/AttrDef.php';
|
|
require_once 'HTMLPurifier/IDAccumulator.php';
|
|
|
|
class HTMLPurifier_AttrDef_ID extends HTMLPurifier_AttrDef
|
|
{
|
|
|
|
function validate($id, $accumulator) {
|
|
|
|
$id = @ (string) $id; // sanity check
|
|
|
|
if ($id === '') return false;
|
|
if (isset($accumulator->ids[$id])) return false;
|
|
|
|
// we purposely avoid using regex, hopefully this is faster
|
|
|
|
if (ctype_alpha($id)) {
|
|
$result = true;
|
|
} else {
|
|
if (!ctype_alpha(@$id[0])) return false;
|
|
$trim = trim(
|
|
$id,
|
|
'A..Za..z0..9:-._'
|
|
);
|
|
$result = ($trim === '');
|
|
}
|
|
|
|
if ($result) $accumulator->add($id);
|
|
|
|
return $result;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
?>
|