protected function processUriList($node, $context, $values) {
if (!$values) {
return array();
}
$uris = array();
foreach (preg_split("/\\s+/", $values) as $value) {
$uri = $this
->processUri($node, $context, $value, true);
if ($uri) {
array_push($uris, $uri);
}
}
return $uris;
}