cpython/Tools/scripts/untabify.py
Guido van Rossum 8fd0f147e7 Detlef Lannert lannert@lannert.rz.uni-duesseldorf.de notices:
"""
the NEWS file of Python 1.5.2a2 inspired me to look at
Tools/scripts/untabify.py. I wonder why it accepts a -t argument
but ignores it. The following patch tries to make it somewhat useful
(i.e., to override the tabsize=8 setting). Is that agreeable?
"""
1998-10-20 15:33:33 +00:00

54 lines
1.2 KiB
Python
Executable file

#! /usr/bin/env python
"Replace tabs with spaces in argument files. Print names of changed files."
import os
import sys
import string
import getopt
def main():
tabsize = 8
try:
opts, args = getopt.getopt(sys.argv[1:], "t:")
if not args:
raise getopt.error, "At least one file argument required"
except getopt.error, msg:
print msg
print "usage:", sys.argv[0], "[-t tabwidth] file ..."
return
for optname, optvalue in opts:
if optname == '-t':
tabsize = int(optvalue)
for file in args:
process(file, tabsize)
def process(file, tabsize):
try:
f = open(file)
text = f.read()
f.close()
except IOError, msg:
print "%s: I/O error: %s" % (`file`, str(msg))
return
newtext = string.expandtabs(text, tabsize)
if newtext == text:
return
backup = file + "~"
try:
os.unlink(backup)
except os.error:
pass
try:
os.rename(file, backup)
except os.error:
pass
f = open(file, "w")
f.write(newtext)
f.close()
print file
if __name__ == '__main__':
main()