def main():
    MODE_UNSET = 0
    MODE_UNPACK = 1
    MODE_PACK = 2
    parser = argparse.ArgumentParser(description='Packs and unpacks Zwei!! [Zwei: The Arges Adventure] DAT archives.')
    parser.add_argument('-u', '--unpack', help='try unpacking', action='store_true')
    parser.add_argument('-p', '--pack', help='try packing', action='store_true')
    parser.add_argument('-t', '--test', help='do not write output and print what would happen instead (test)', action='store_true')
    parser.add_argument('-q', '--quiet', help='suppress per-file output', action='store_true')
    parser.add_argument('-s', '--from-sh', help='suppress pause on completion, if invoked from CLI', action='store_true')
    parser.add_argument('infile', nargs='*', help='file(s) to read')
    args = parser.parse_args()
    mode = MODE_UNSET
    if (args.pack and args.unpack):
        print('Error: You cannot both pack and unpack the input.', file=sys.stderr)
        return args.from_sh
    count = len(args.infile)
    if (count == 0):
        print('Error: No files. Please provide a .DAT file to unpack or a folder to pack.', file=sys.stderr)
        return args.from_sh
    if args.pack:
        mode = MODE_PACK
    elif args.unpack:
        mode = MODE_UNPACK
    if ((mode == MODE_UNSET) and os.path.isdir(args.infile[0])):
        mode = MODE_PACK
    if ((mode == MODE_UNSET) and os.path.isfile(args.infile[0]) and (args.infile[0][(- 4):].upper() == '.DAT')):
        mode = MODE_UNPACK
    if (mode == MODE_UNSET):
        print('Error: Unknown file(s). Please provide a .DAT file to unpack or a folder to pack.', file=sys.stderr)
    elif (mode == MODE_UNPACK):
        unpack(args.infile, args)
    elif (mode == MODE_PACK):
        pack(args.infile, args)
    return args.from_sh
def main():
    MODE_UNSET = 0
    MODE_UNPACK = 1
    MODE_PACK = 2
    parser = argparse.ArgumentParser(description='Packs and unpacks Zwei!! [Zwei: The Arges Adventure] DAT archives.')
    parser.add_argument('-u', '--unpack', help='try unpacking', action='store_true')
    parser.add_argument('-p', '--pack', help='try packing', action='store_true')
    parser.add_argument('-t', '--test', help='do not write output and print what would happen instead (test)', action='store_true')
    parser.add_argument('-q', '--quiet', help='suppress per-file output', action='store_true')
    parser.add_argument('-s', '--from-sh', help='suppress pause on completion, if invoked from CLI', action='store_true')
    parser.add_argument('infile', nargs='*', help='file(s) to read')
    args = parser.parse_args()
    mode = MODE_UNSET
    if (args.pack and args.unpack):
        print('Error: You cannot both pack and unpack the input.', file=sys.stderr)
        return args.from_sh
    count = len(args.infile)
    if (count == 0):
        print('Error: No files. Please provide a .DAT file to unpack or a folder to pack.', file=sys.stderr)
        return args.from_sh
    if args.pack:
        mode = MODE_PACK
    elif args.unpack:
        mode = MODE_UNPACK
    if ((mode == MODE_UNSET) and os.path.isdir(args.infile[0])):
        mode = MODE_PACK
    if ((mode == MODE_UNSET) and os.path.isfile(args.infile[0]) and (args.infile[0][(- 4):].upper() == '.DAT')):
        mode = MODE_UNPACK
    if (mode == MODE_UNSET):
        print('Error: Unknown file(s). Please provide a .DAT file to unpack or a folder to pack.', file=sys.stderr)
    elif (mode == MODE_UNPACK):
        unpack(args.infile, args)
    elif (mode == MODE_PACK):
        pack(args.infile, args)
    return args.from_sh