protected function _controlContent($tokenId, $tokens, $root = true) {
		$token = $tokens[$tokenId];
		$body = $token['content'];

		foreach ($token['children'] as $childrenId) {
			if (!$tokens[$childrenId]['children']) {
				$body .= $tokens[$childrenId]['content'];
			} elseif ($root && $tokens[$childrenId]['content'] === '{') {
				$body .= $tokens[$childrenId]['content'];
				break;
			} else {
				$body .= $this->_controlContent($childrenId, $tokens, false);
			}
		}
		return $body;
	}