#! /usr/bin/env python

"Replace LF with CRLF in argument files.  Print names of changed files."

import sys, re, os

def main():
   for filename in sys.argv[1:]:
       if os.path.isdir(filename):
           print filename, "Directory!"
           continue
       data = open(filename, "rb").read()
       if '\0' in data:
           print filename, "Binary!"
           continue
       newdata = re.sub("\r?\n", "\r\n", data)
       if newdata != data:
           print filename
           f = open(filename, "wb")
           f.write(newdata)
           f.close()

if __name__ == '__main__':
   main()