Viewing file:  line_endings.py (1.98 KB) -rw-r--r--
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""" Functions for converting from DOS to UNIX line endings
"""
import os
import re
import sys
def dos2unix(file):
"Replace CRLF with LF in argument files. Print names of changed files."
if os.path.isdir(file):
print(file, "Directory!")
return
with open(file, "rb") as fp:
data = fp.read()
if '\0' in data:
print(file, "Binary!")
return
newdata = re.sub("\r\n", "\n", data)
if newdata != data:
print('dos2unix:', file)
with open(file, "wb") as f:
f.write(newdata)
return file
else:
print(file, 'ok')
def dos2unix_one_dir(modified_files, dir_name, file_names):
for file in file_names:
full_path = os.path.join(dir_name, file)
file = dos2unix(full_path)
if file is not None:
modified_files.append(file)
def dos2unix_dir(dir_name):
modified_files = []
os.path.walk(dir_name, dos2unix_one_dir, modified_files)
return modified_files
#----------------------------------
def unix2dos(file):
"Replace LF with CRLF in argument files. Print names of changed files."
if os.path.isdir(file):
print(file, "Directory!")
return
with open(file, "rb") as fp:
data = fp.read()
if '\0' in data:
print(file, "Binary!")
return
newdata = re.sub("\r\n", "\n", data)
newdata = re.sub("\n", "\r\n", newdata)
if newdata != data:
print('unix2dos:', file)
with open(file, "wb") as f:
f.write(newdata)
return file
else:
print(file, 'ok')
def unix2dos_one_dir(modified_files, dir_name, file_names):
for file in file_names:
full_path = os.path.join(dir_name, file)
unix2dos(full_path)
if file is not None:
modified_files.append(file)
def unix2dos_dir(dir_name):
modified_files = []
os.path.walk(dir_name, unix2dos_one_dir, modified_files)
return modified_files
if __name__ == "__main__":
dos2unix_dir(sys.argv[1])
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