Called automatically to process the directory listing(s) contained in
        the content.

def parse_content(self, content):
        """
        Called automatically to process the directory listing(s) contained in
        the content.
        """
        self.listings = ls_parser.parse(content, self.first_path)

        # No longer need the first path found, if any.
        delattr(self, 'first_path')