Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/untabify.py @ 28646:193b8aec00ce legacy-trunk

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Changes from Jonathan Riehl to allow his pgen extension (PEP 269) to work. This includes some more code that used to be part of pgen in the main parser; I'm okay with that. I'll see if the Windows build needs work next.
author Guido van Rossum <guido@python.org>
date Thu, 17 Apr 2003 14:55:42 +0000
parents 8a7a2f1f88f0
children 93c92f20b6bf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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b826e50e9573 Utility to untabify stubber results.
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1 #! /usr/bin/env python
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2
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3 "Replace tabs with spaces in argument files. Print names of changed files."
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4
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5 import os
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6 import sys
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7 import getopt
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8
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9 def main():
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10 tabsize = 8
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11 try:
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12 opts, args = getopt.getopt(sys.argv[1:], "t:")
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13 if not args:
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14 raise getopt.error, "At least one file argument required"
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15 except getopt.error, msg:
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16 print msg
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17 print "usage:", sys.argv[0], "[-t tabwidth] file ..."
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18 return
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19 for optname, optvalue in opts:
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20 if optname == '-t':
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21 tabsize = int(optvalue)
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22
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23 for file in args:
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24 process(file, tabsize)
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25
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26 def process(file, tabsize):
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27 try:
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28 f = open(file)
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29 text = f.read()
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30 f.close()
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31 except IOError, msg:
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32 print "%s: I/O error: %s" % (`file`, str(msg))
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33 return
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Walter Dörwald <walter@livinglogic.de>
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34 newtext = text.expandtabs(tabsize)
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35 if newtext == text:
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36 return
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37 backup = file + "~"
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38 try:
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39 os.unlink(backup)
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40 except os.error:
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41 pass
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42 try:
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43 os.rename(file, backup)
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44 except os.error:
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45 pass
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46 f = open(file, "w")
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47 f.write(newtext)
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48 f.close()
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49 print file
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50
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51 if __name__ == '__main__':
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52 main()