def __get_options(self, rouge_args=None):
        """
        Get supplied command line arguments for ROUGE or use default
        ones.

        """
        if self.args:
            options = self.args.split()
        elif rouge_args:
            options = rouge_args.split()
        else:
            options = [
                '-e', self._data_dir,
                '-c', 95,
                '-2',
                '-1',
                '-U',
                '-r', 1000,
                '-n', 4,
                '-w', 1.2,
                '-a',
                ]
            options = list(map(str, options))

        options = self.__add_config_option(options)
        return options
Get supplied command line arguments for ROUGE or use default
        ones.