#!/usr/bin/env python
# http://pc3.2ch.net/test/read.cgi/tech/1036892546/

import getopt
import os
import re
import string
import sys

if os.sep == "/":
　　SPACE = "\xa1\xa1" # EUC-JP
else:
　　SPACE = "\x81\x40" # Shift_JIS

USAGE = """\
Usage: %s [options] [file ...]
Options:
-t, --tabify convert white space into full-width space (default)
-u, --untabify convert full-width space into white space
-h, --help show this message
"""

def main():
　　try:
　　　　options, args = getopt.getopt(sys.argv[1:], "htu", [