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      1 #! /usr/bin/env python
      2 
      3 "Replace LF with CRLF in argument files.  Print names of changed files."
      4 
      5 import sys, re, os
      6 
      7 def main():
      8     for filename in sys.argv[1:]:
      9         if os.path.isdir(filename):
     10             print filename, "Directory!"
     11             continue
     12         data = open(filename, "rb").read()
     13         if '\0' in data:
     14             print filename, "Binary!"
     15             continue
     16         newdata = re.sub("\r?\n", "\r\n", data)
     17         if newdata != data:
     18             print filename
     19             f = open(filename, "wb")
     20             f.write(newdata)
     21             f.close()
     22 
     23 if __name__ == '__main__':
     24     main()
     25