def test_encode_long_sequence():
""" encode byte sequence long enough for output to wrap """
result = hextream.encode(bytes(range(0, 40)))
assert result == (
"00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F\n" +
"10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F\n"+
"20 21 22 23 24 25 26 27"
)
def main():
""" Program entry point """
parser = argparse.ArgumentParser(
description=
"Strip comments and normalize whitespace for Hextream format content")
parser.add_argument('infile',
nargs='?',
type=argparse.FileType('r', encoding="UTF-8"),
help="Name of file with content to be cleaned",
default=sys.stdin)
parser.add_argument(
'outfile',
nargs='?',
type=argparse.FileType('w', encoding="UTF-8"),
help="Name of file in which to write the cleaned content",
default=sys.stdout)
args = parser.parse_args()
hex_content = args.infile.read()
binary_content = hextream.decode(hex_content)
hex_content = hextream.encode(binary_content)
args.outfile.write(hex_content)
def main():
""" Program entry point """
parser = argparse.ArgumentParser(
description="Packs/unpacks Hextream content to/from the Varipacker format"
)
commands = parser.add_mutually_exclusive_group(required=True)
commands.add_argument("-p", "--pack", action="store_true",
help="Pack Hextream content into Varipacker format")
commands.add_argument("-u", "--unpack", action="store_true",
help="Unpack Varipacker content into Hextream format")
parser.add_argument('infile', nargs='?', type=argparse.FileType('r', encoding="UTF-8"),
help="Name of file with content to be packed/unpacked",
default=sys.stdin)
parser.add_argument('outfile', nargs='?', type=argparse.FileType('w', encoding="UTF-8"),
help="Name of file in which to write packed/unpacked content",
default=sys.stdout)
parser.add_argument("-c", "--comment", type=str,
help="Prepend the output with specified comment string")
parser.add_argument("-n", "--omit-newline", action="store_true",
help="The ending newline character(s) will be omitted from the output")
args = parser.parse_args()
source_content = args.infile.read()
if args.pack:
binary_content = hextream.decode(source_content)
output_content = varipacker.encode(binary_content)
else:
binary_content = varipacker.decode(varipacker.distill(source_content))
output_content = hextream.encode(binary_content)
if args.comment:
args.outfile.write("# {}\n".format(args.comment))
args.outfile.write(output_content)
if not args.omit_newline:
args.outfile.write("\n")
def test_encode_single_byte():
""" encode one byte sequence """
result = hextream.encode(b"\xab")
assert result == "AB"
def test_encode_empty():
""" encode empty bytes sequence """
result = hextream.encode(b"")
assert result == ""
def test_encode_multiple_bytes():
""" encode several byte sequence """
result = hextream.encode(b"\xab\x01\x9a\xa9\xff")
assert result == "AB 01 9A A9 FF"