4 * Validates a MultiLength as defined by the HTML spec.
6 * A multilength is either a integer (pixel count), a percentage, or
9 class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length
13 * @param string $string
14 * @param HTMLPurifier_Config $config
15 * @param HTMLPurifier_Context $context
18 public function validate($string, $config, $context)
20 $string = trim($string);
25 $parent_result = parent::validate($string, $config, $context);
26 if ($parent_result !== false) {
27 return $parent_result;
30 $length = strlen($string);
31 $last_char = $string[$length - 1];
33 if ($last_char !== '*') {
37 $int = substr($string, 0, $length - 1);
42 if (!is_numeric($int)) {
56 return ((string)$int) . '*';