', $pos)) !== false) {
                    $pos += 2;
                } else {
                    return 'text/html';
                }
            } elseif (substr($this->file->body, $pos, 3) === 'rss'
                || substr($this->file->body, $pos, 7) === 'rdf:RDF') {
                return 'application/rss+xml';
            } elseif (substr($this->file->body, $pos, 4) === 'feed') {
                return 'application/atom+xml';
            } else {
                return 'text/html';
            }
        }

        return 'text/html';
    }
}

class_alias('SimplePie\Content\Type\Sniffer', 'SimplePie_Content_Type_Sniffer');