fypp.py 文件源码

def process_file(self, infile, outfile=None):
        '''Processes input file and writes result to output file.

        Args:
            infile (str): Name of the file to read and process. If its value is
                '-', input is read from stdin.
            outfile (str, optional): Name of the file to write the result to.
                If its value is '-', result is written to stdout. If not
                present, result will be returned as string.
            env (dict, optional): Additional definitions for the evaluator.

        Returns:
            str: Result of processed input, if no outfile was specified.
        '''
        infile = STDIN if infile == '-' else infile
        output = self._preprocessor.process_file(infile)
        if outfile is None:
            return output
        else:
            if outfile == '-':
                outfile = sys.stdout
            else:
                outfile = _open_output_file(outfile, self._create_parent_folder)
            outfile.write(output)
            if outfile != sys.stdout:
                outfile.close()