__init__.py 文件源码

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('-v', '--verbose', action='count', default=0, dest='verbosity')
    parser.add_argument('-V', '--version', action='store_true', dest='version', help='Show version and exit')

    input_group = parser.add_mutually_exclusive_group()
    input_group.add_argument('file', nargs='?', metavar='FILE', help='The path to the markdown file')
    input_group.add_argument('--stdin', dest='stdin', action='store_true', help='Read Markdown from stdin')

    parser.add_argument('-t', '--tab-spaces', dest='tab_spaces', default=4, type=int, help='Number of spaces in a tab (defaults to 4)')

    try:
        import argcomplete
        argcomplete.autocomplete(parser)
    except Exception:
        pass # Optional argcomplete module not installed

    args = parser.parse_args()

    if args.version:
        print('vmd {}'.format(VERSION))
        sys.exit(0)

    import logging

    if args.verbosity != 0:
        logging_level = 10 * max(0, 3 - args.verbosity)

        logging.basicConfig(level=logging_level)

    mdparser = build_parser(args)

    config = load_config()

    writer = create_display_writer(sys.stdout)

    renderer = build_render(writer, config)

    if args.stdin:
        doc = mdparser.parse(sys.stdin.read())
    elif args.file is not None:
        with open(args.file) as f:
            doc = mdparser.parse(f.read())
    else:
        parser.print_help()
        sys.exit(1)

    renderer.render_document(doc)

    sys.stdout.write('\n')
    sys.stdout.flush()
    sys.stdout.close()