换行符转换脚本(Python)



	 

	似乎，需要整理整理使用的python的脚本了：

	 

	很简单的一个东西，在'\n'、'\r\n'、'\r'3中换行符之间进行转换。

	 

	用法

	 

	usage: eol_convert.py [-h] [-r] [-m {u,p,w,m,d}] [-k] [-f]

	                      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

	源码

	这只能算是argparse模块和os模块的utime()、stat()、walk()的一个简单的练习。可以用，但还相当不完善。

	 

	view plain

	#!/usr/bin/env python 

	#2009-2011 dbzhang800 

	import os 

	import re 

	import os.path 

	 

	def convert_line_endings(temp, mode): 

	    if mode in ['u', 'p']: #unix, posix 

	        temp = temp.replace('\r\n', '\n') 

	        temp = temp.replace('\r', '\n') 

	    elif mode == 'm':      #mac (before Mac OS 9) 

	        temp = temp.replace('\r\n', '\r') 

	        temp = temp.replace('\n', '\r') 

	    elif mode == 'w':      #windows 

	        temp = re.sub("\r(?!\n)|(?<!\r)\n", "\r\n", temp) 

	    return temp 

	 

	def convert_file(filename, args): 

	    statinfo = None 

	    with file(filename, 'rb+') as f: 

	        data = f.read() 

	        if '\0' in data and not args.force:  #skip binary  file... ? 

	            print '%s is a binary file?, skip...' % filename 

	            return 

	        newdata = convert_line_endings(data, args.mode) 

	        if (data != newdata): 

	            statinfo = os.stat(filename) if args.keepdate else None 

	            f.seek(0) 

	            f.write(newdata) 

	            f.truncate() 

	    if statinfo: 

	        os.utime(filename, (statinfo.st_atime, statinfo.st_mtime)) 

	    print filename 

	 

	def walk_dir(d, args): 

	    for root, dirs, files in os.walk(d): 

	        for name in files: 

	            convert_file(os.path.join(root, name), args) 

	 

	if __name__ == '__main__': 

	    import argparse 

	    import sys 

	    parser = argparse.ArgumentParser(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 args.mode == 'd': 

	        args.mode = 'w' if sys.platform == 'win32' else 'p' 

	 

	    for filename in args.filename: 

	       if os.path.isdir(filename): 

	           if args.recursive: 

	               walk_dir(filename, args) 

	           else: 

	                print '%s is a directory, skip...' % filename 

	       elif os.path.exists(filename): 

	            convert_file(filename, args) 

	       else: 

	           print '%s does not exist' % filename   

	 

	作者：dbzhang800

补充：Web开发 , Python ,