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htmlpurifier/library/HTMLPurifier/AttrDef/MultiLength.php
2006-08-20 21:47:15 +00:00

42 lines
1021 B
PHP

<?php
require_once 'HTMLPurifier/AttrDef.php';
require_once 'HTMLPurifier/AttrDef/Length.php';
/**
* Validates a MultiLength as defined by the HTML spec.
*
* A multilength is either a integer (pixel count), a percentage, or
* a relative number.
*/
class HTMLPurifier_AttrDef_MultiLength extends HTMLPurifier_AttrDef_Length
{
function validate($string, $config, &$context) {
$string = trim($string);
if ($string === '') return false;
$parent_result = parent::validate($string, $config, $context);
if ($parent_result !== false) return $parent_result;
$length = strlen($string);
$last_char = $string[$length - 1];
if ($last_char !== '*') return false;
$int = substr($string, 0, $length - 1);
if (!is_numeric($int)) return false;
$int = (int) $int;
if ($int < 0) return '0*';
return ((string) $int) . '*';
}
}
?>