| #! /usr/bin/env python |
| |
| "Replace tabs with spaces in argument files. Print names of changed files." |
| |
| import os |
| import sys |
| 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 filename in args: |
| process(filename, tabsize) |
| |
| def process(filename, tabsize, verbose=True): |
| try: |
| f = open(filename) |
| text = f.read() |
| f.close() |
| except IOError, msg: |
| print "%r: I/O error: %s" % (filename, msg) |
| return |
| newtext = text.expandtabs(tabsize) |
| if newtext == text: |
| return |
| backup = filename + "~" |
| try: |
| os.unlink(backup) |
| except os.error: |
| pass |
| try: |
| os.rename(filename, backup) |
| except os.error: |
| pass |
| with open(filename, "w") as f: |
| f.write(newtext) |
| if verbose: |
| print filename |
| |
| if __name__ == '__main__': |
| main() |
