Python批量去除UTF8的Bom标签详解编程语言

trimbom.py 

#!/usr/bin/python 
#coding=utf-8 
 
import os 
import sys 
import codecs 
 
class RemoveBom:   
 
    basePath = '' 
    fileList = [] 
    trimExtList = [] 
     
    def showMessages(self): 
	print 'the Path is [',self.basePath,']' 
	n = '' 
	for ext in self.trimExtList: 
	    n+=ext 
	    n+=' ' 
	print 'the Exts is [' ,n,']' 
 
    def trimFile(self,name): 
	file = open(name,'rb') 
	content = file.read(3) 
	if content != '/xEF/xBB/xBF': 
	    return False 
	content = file.read() 
	file.close() 
	file = open(name,'wb') 
	file.write(content) 
	file.close 
	print 'convert ',name,' finish' 
	return True 
 
    def getFileList(self,path): 
	if not path: 
	    return False 
	for root,dirs,files in os.walk(path): 
	    for filename in files: 
		if filename.split('.')[-1] in self.trimExtList: 
			filepath=os.path.join(root,filename) 
			self.trimFile(filepath) 
			#print filepath 
 
    def run(self,argv): 
	self.basePath = os.path.normpath(argv[1]) 
        if len(argv) < 3: 
            self.trimExtList.append('java') 
        else: 
	    for i in range(len(argv)-2): 
                self.trimExtList.append(argv[2+i]) 
	self.showMessages() 
	self.getFileList(argv[1]) 
 
if __name__ == '__main__': 
	if len(sys.argv) < 2: 
            print 'USEAGE:python %s dirName [ext eg:java php cpp]' % __file__ 
            sys.exit(0) 
	 
	tObj = RemoveBom() 
	tObj.run(sys.argv)