mirror of
https://github.com/ezyang/htmlpurifier.git
synced 2024-11-14 17:28:40 +00:00
b5ff592157
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@237 48356398-32a2-884e-a903-53898d9a118a
40 lines
1.2 KiB
PHP
40 lines
1.2 KiB
PHP
<?php
|
|
|
|
require_once 'HTMLPurifier/AttrDef.php';
|
|
require_once 'HTMLPurifier/AttrDef/Number.php';
|
|
|
|
class HTMLPurifier_AttrDef_CSSLength extends HTMLPurifier_AttrDef
|
|
{
|
|
|
|
var $units = array('em' => true, 'ex' => true, 'px' => true, 'in' => true,
|
|
'cm' => true, 'mm' => true, 'pt' => true, 'pc' => true);
|
|
var $number_def;
|
|
|
|
function HTMLPurifier_AttrDef_CSSLength($non_negative = false) {
|
|
$this->number_def = new HTMLPurifier_AttrDef_Number($non_negative);
|
|
}
|
|
|
|
function validate($length, $config, &$context) {
|
|
|
|
$length = $this->parseCDATA($length);
|
|
if ($length === '') return false;
|
|
if ($length === '0') return '0';
|
|
$strlen = strlen($length);
|
|
if ($strlen === 1) return false; // impossible!
|
|
|
|
// we assume all units are two characters
|
|
$unit = substr($length, $strlen - 2);
|
|
$number = substr($length, 0, $strlen - 2);
|
|
|
|
if (!isset($this->units[$unit])) return false;
|
|
|
|
$number = $this->number_def->validate($number, $config, $context);
|
|
if ($number === false) return false;
|
|
|
|
return $number . $unit;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
?>
|