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#! /usr/bin/env python3
"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()
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