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#! /usr/bin/env python
# Copyright (c) 2006 The Regents of The University of Michigan
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Nathan Binkert
import re
import os
import sys
from getopt import getopt, GetoptError
tabs = re.compile(r'^[ \t]+')
def fixwhite(filename, tabsize):
try:
f = file(filename, 'r+')
except OSError, msg:
print 'could not open file %s: %s' % (filename, msg)
return
lines = list(f)
f.seek(0)
f.truncate()
for line in lines:
if tabs.search(line):
newline = ''
for i,c in enumerate(line):
if c == ' ':
newline += ' '
elif c == '\t':
newline += ' ' * (tabsize - len(newline) % tabsize)
else:
newline += line[i:]
break
line = newline
print >>f, line.rstrip()
if __name__ == '__main__':
progname = sys.argv[0]
def usage(code=None):
print >>sys.stderr, '''%s [-t <tabsize>] <filenames>''' % progname
if code is not None:
sys.exit(code)
try:
opts, args = getopt(sys.argv[1:], '-t:')
except GetoptError:
usage(2)
tabsize = 8
for opt,arg in opts:
if opt == '-t':
tabsize = int(arg)
for filename in args:
fixwhite(filename, tabsize)
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