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#!/usr/bin/env python
import sys
import fileinput
# Defaults
TABSIZE = 4
usage = """
Replaces all TAB characters with %(TABSIZE)d space characters.
In addition, all trailing space characters are removed.
usage: trim file ...
file ... : files are changed in place without taking any backup.
""" % vars()
def main():
if len(sys.argv) == 1:
sys.stderr.write(usage)
sys.exit(2)
# Iterate over the lines of all files listed in sys.argv[1:]
for line in fileinput.input(sys.argv[1:], inplace=True):
line = line.replace('\t',' '*TABSIZE); # replace TABs
line = line.rstrip(None) # remove trailing whitespaces
print line # modify the file
if __name__ == '__main__':
main()
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