protected function showSection( Line$line ):self
	{
		$sectionName= $line->pregGet('/(?<=\( ).*(?= \))/');

		if( !isset($this->sections[$sectionName]) ){
			return $this->openNode(new StringNode($this,$line));
		}
		$content= $this->sections[$sectionName]->content;

		false===$this->indentation or $content= $this->insertIndentations($content);

		$this->append($content);

		$node= new NamelessSectionNode($this,$line);

		$node->open();

		return $this->openNode($node);
	}