/**
* Parse next filter token.
*
* @return FilterNode
*/
protected function parseFilter()
{
$block = null;
$token = $this->expectTokenType('filter');
$attributes = $this->acceptTokenType('attributes');
$block = $this->parseTextBlock();
$node = new FilterNode($token->value, null !== $attributes ? $attributes->attributes : [], $this->lexer->getCurrentLine());
$node->setBlock($block);
return $node;
}
