diff options
Diffstat (limited to 'bin/leb128')
| -rwxr-xr-x | bin/leb128 | 36 |
1 files changed, 14 insertions, 22 deletions
@@ -1,16 +1,11 @@ -#!/bin/python3 +#!/usr/bin/env python3 +"""a leb128 decoder,encoder""" import argparse -import signal -import sys - - -def SigHandler_SIGINT(signum, frame): - print() - sys.exit(0) def devibytes(val): + """A custom arg handler, just to handle bytes in hex format""" ret = [] for byte in val.split(","): ret.append(int(byte, 16)) @@ -18,6 +13,7 @@ def devibytes(val): def LEB128UnsignedDecode(bytelist): + """LEB128 unsiged decoder""" result = 0 shift = 0 for byte in bytelist: @@ -29,6 +25,7 @@ def LEB128UnsignedDecode(bytelist): def LEB128SignedDecode(bytelist): + """LEB128 signed decoder""" result = 0 shift = 0 for byte in bytelist: @@ -43,9 +40,10 @@ def LEB128SignedDecode(bytelist): def LEB128UnsignedEncode(int_val): + """LEB128 signed encoder""" if int_val < 0: raise Exception("value must not be negative") - elif int_val == 0: + if int_val == 0: return bytes([0]) byte_array = bytearray() while int_val: @@ -57,6 +55,7 @@ def LEB128UnsignedEncode(int_val): def LEB128SignedEncode(int_val): + """LEB128 signed encoder""" byte_array = bytearray() while True: byte = int_val & 0x7F @@ -70,7 +69,10 @@ def LEB128SignedEncode(int_val): return byte_array -class Argparser(object): +# pylint: disable=too-few-public-methods +class Argparser: + """CLI args""" + def __init__(self): parser = argparse.ArgumentParser() parser.add_argument("--se", type=int, help="leb128 signed encode") @@ -88,11 +90,8 @@ class Argparser(object): self.args = parser.parse_args() -# write code here - - -def premain(): - signal.signal(signal.SIGINT, SigHandler_SIGINT) +def main(): + """entrypoint""" argparser = Argparser() # here if argparser.args.se: @@ -111,12 +110,5 @@ def premain(): print(LEB128UnsignedDecode(argparser.args.ud)) -def main(): - try: - premain() - except Exception as e: - print(e) - - if __name__ == "__main__": main() |