It's a simple thing to convert between line breaks in '\n', '\r\n', and '\r' 3.
usage
Copy Code The code is as follows.
usage: eol_convert.py [-h] [-r] [-m {u,p,w,m,d}] [-k] [-f]
filename [filename ...]
filename [filename ...]
Convert Line Ending
positional arguments:
filename file names
optional arguments:
-h, --help show this help message and exit
-r walk through directory
-m {u,p,w,m,d} mode of the line ending
-k keep output file date
-f force conversion of binary files
source code (computing)
This can only be considered a simple exercise for the argparse module and the os module's utime(), stat(), and walk(). It works, but it's fairly imperfect.
#!/usr/bin/env python
#2009-2011 dbzhang800
import os
import re
import
def convert_line_endings(temp, mode):
if mode in ['u', 'p']: #unix, posix
temp = ('\r\n', '\n')
temp = ('\r', '\n')
elif mode == 'm': #mac (before Mac OS 9)
temp = ('\r\n', '\r')
temp = ('\n', '\r')
elif mode == 'w': #windows
temp = ("\r(?!\n)|(?<!\r)\n", "\r\n", temp)
return temp
def convert_file(filename, args):
statinfo = None
with file(filename, 'rb+') as f:
data = ()
if '\0' in data and not : #skip binary file... ?
print '%s is a binary file?, skip...' % filename
return
newdata = convert_line_endings(data, )
if (data != newdata):
statinfo = (filename) if else None
(0)
(newdata)
()
if statinfo:
(filename, (statinfo.st_atime, statinfo.st_mtime))
print filename
def walk_dir(d, args):
for root, dirs, files in (d):
for name in files:
convert_file((root, name), args)
if __name__ == '__main__':
import argparse
import sys
parser = (description='Convert Line Ending')
parser.add_argument('filename', nargs='+', help='file names')
parser.add_argument('-r', dest='recursive', action='store_true',
help='walk through directory')
parser.add_argument('-m', dest='mode', default='d', choices='upwmd',
help='mode of the line ending')
parser.add_argument('-k', dest='keepdate', action='store_true',
help='keep output file date')
parser.add_argument('-f', dest='force', action='store_true',
help='force conversion of binary files')
args = parser.parse_args()
if == 'd':
= 'w' if == 'win32' else 'p'
for filename in :
if (filename):
if :
walk_dir(filename, args)
else:
print '%s is a directory, skip...' % filename
elif (filename):
convert_file(filename, args)
else:
print '%s does not exist' % filename