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如何使用Python搜索和替换从一个文件到另一个文件的文本？

2011-12-14 72 views
1

我有一个文件FILE1.TXT：如何使用Python搜索和替换从一个文件到另一个文件的文本？

I Show more flower you can see by link 
All is Beautyfull.You Can View Here ! 
Link View : 

http://lincoln.com/view/12432134/flower1.jpg  
http://lincoln.com/view/34645645/flower3456.jpg  
http://lincoln.com/view/75634534/flower56.jpg  
http://lincoln.com/view/86764454/flower2.jpg

，另一个FILE2.TXT：

http://lincoln.com/view/43645645/flower1.jpg  
http://lincoln.com/view/84344454/flower3456.jpg  
http://lincoln.com/view/43343433/flower56.jpg  
http://lincoln.com/view/13424324/flower2.jpg  
http://kashi.com/view/343434344/flower1.jpg  
http://kashi.com/view/766454544/flower3456.jpg  
http://kashi.com/view/32634545/flower56.jpg  
http://kashi.com/view/84353453/flower2.jpg

我想是这样的：

I Show more flower you can see by link 
All is Beautyfull.You Can View Here ! 
Link View : 

http://lincoln.com/view/43645645/flower1.jpg  
http://lincoln.com/view/84344454/flower3456.jpg  
http://lincoln.com/view/43343433/flower56.jpg  
http://lincoln.com/view/13424324/flower2.jpg 

More Link VIew: 

http://kashi.com/view/343434344/flower1.jpg  
http://kashi.com/view/766454544/flower3456.jpg  
http://kashi.com/view/32634545/flower56.jpg  
http://kashi.com/view/84353453/flower2.jpg  
++++++++++++++++++++++++++++++++++++++++ 

I Show more candy you can see by link 
All is Beautyfull.You Can View Here ! 
http://photobucket.com

的伪代码是：

if filename exists in file1 but not in file2: 
    remove filename 
else if filename exists in file1 and in file2: 
    the version in file2 replaces the line in file1 
else if filename exists in file2 but not in file1: 
    do nothing 

add the links with the domaine name "http://kashi.com" from file2.txt 
in a section "More link view" 
add "++++++++++++++++++++++++++"

我尝试这样的算法：

def file_merge(file1name,file2name): 
    file1contents = list() 
    file2contents = list() 
    file1 = open(file1name, 'U') 
    for line in file1: 
     line = line.replace('\n','') 
     line = line.split('/') 
     file1contents.append(line) 
    file1.close() 
    file2 = open(file2name, 'U') 
    for line in file2: 
     line = line.replace('\n','') 
     line = line.split('/') 
     file2contents.append(line) 
    file2.close() 
    file3contents = file1contents 
    for x in file2contents: 
     for y in file1contents: 
      if x[-1] == y[-1]: 
       file3contents[file3contents.index(y)] = x 

    file3 = open(file1name,'w') 
    for line in file3contents: 
     file3.write(str('/'.join(line))+'\n') 
    file3.close() 

file_merge('file1.txt','file2.txt')

谢谢！

简单的是：在 FILE1.TXT

以“文件名”代替“文件名”中FILE2.TXT和附加链接http://kashi.com和“文件名”成关键词之前内容“+++++ +++++++++++++++++++++++++++++++++++”

为：

[img]http://photobucket.com/98a267d32b056fb0a5c8c07dd4c35cc5.jpg[/img] 

Fomart:IMG 
Quality:High 



http://lincoln.com/view/4148476844/flower1.jpg 
http://lincoln.com/view/4148476994/flowe2.jpg 
http://lincoln.com/view/4148501374/flower3.jpg 
http://lincoln.com/view/4148476324/flower4.jpg 
http://lincoln.com/view/4148494685/flower5.jpg 
http://lincoln.com/view/4148626615/flowew6.jpg 

You Can VIEW More Link ! 



More Link: 
http://kashi.com/view/414865/flower1.jpg 
http://kashi.com/view/6344353/flower2.jpg 
http://kashi.com/view/234234/flower3.jpg 
http://kashi.com/view/6543534/flower4.jpg 
http://kashi.com/view/2342342/flower5.jpg 
http://kashi.com/view/234234/flower6.jpg 


++++++++++++++++++++++++++++++++++++ 
[img]http://phtobucket.com/004_8N9FEWFZD7ECJC6.jpg[/img] 
Format:Img 
Quality:High 


http://lincoln.com/view/4148633524/candy1.jpg 
http://lincoln.com/view/4148538064/candy2.jpg 
http://lincoln.com/view/4148537824/candy3.jpg 
http://lincoln.com/view/4148562565/candy4.jpg 
http://lincoln.com/view/4148562035/candy5.jpg 




You Can VIEW More Link ! 




More Link: 
http://kashi.com/view/23423423/candy1.jpg 
http://kashi.com/view/345345/candy2.jpg 
http://kashi.com/view/234234/candy3.jpg 
http://kashi.com/view/3434342/candy4.jpg 
http://kashi.com/view/234234234/candy5.jpg 
+++++++++++++++++++++++++++++++++++++++++++++ 
... 
... 
And more content as above

来源

2011-12-14 j3oy9x

+1

你只是检查'jpg'文件名匹配，但如果他们不，你没有照顾你2条件： “1>如果文件名存在于file1中，但不存在于file2 2>如果文件名存在于file2中但不在file1中，则不起作用并添加http://kashi.com” – avasal 2011-12-14 05:55:37

+2

@ j3oy9x在此线程中，您在不考虑写给你的东西的情况下独白。你前面的两个问题得到了9分降低。你有一种独特的沟通方式。你应该考虑一下。就我个人而言，只要它们保持不变，我将永远不会更多地关注您的问题和编辑。你应该考虑我在这里写什么。祝你有美好的生活。 – eyquem 2011-12-15 10:32:27

回答

2

尝试这

import urlparse 
import os 

def file_merge(file1name,file2name): 

    file1contents = list() 
    file2contents = list() 

    file1 = open(file1name, 'U') 
    file1contents = file1.readlines() 
    file1.close() 

    file2 = open(file2name, 'U') 
    file2contents = file2.readlines() 
    file2.close() 

    file3contents = [] 

    for link in file2contents: 
     temp = urlparse.urlsplit(link) 
     dirname, filename = os.path.split(temp.path) 

     file3contents.append(link) 

     linkin1 = False 
     for l_link in file1contents[4:]: 
      if l_link.endswith(filename): 
       linkin1 = True 

     if not linkin1: 
      urllist = list(temp) 
      urllist[1] = 'kashi.com' 
      file3contents[-1] = urlparse.urlunsplit(urllist) 


    file3 = open(file1name,'w') 
    for line in file3contents: 
     file3.write(line) 
    file3.close() 

file_merge('/tmp/file1.txt','/tmp/file2.txt')

来源

2011-12-14 09:38:00 Nilesh

2

试试这个，请：

with open('file2.txt','r') as f2: 
    dic2 = {} 
    li2 = [] 
    for line in f2: 
     spli = line.rstrip().replace('http://','').split('/') 
     dic2[(spli[0],spli[-1])] = line if line[-1]=='\n' else line+'\n' 
     li2.append((spli[0],spli[-1])) 

with open('file1.txt','r') as f1,open('file3.txt','w') as f3: 

    itr1 = iter(f1) 

    for line in itr1: 
     f3.write(line) 
     if line.strip()=='': 
      break 

    for line in itr1: 
     if line.strip(): 
      spli = line.rstrip().replace('http://','').split('/') 
      x = (spli[0],spli[-1]) 
      if x in li2: 
       f3.write(dic2[x]) 
       li2.remove((spli[0],spli[-1])) 
    klu = '\n' if line.rstrip()==line else '' 
    # to add a blank line if the last line wasn't '\n'-ended 
    f3.write(klu + '\nMore Link VIew:\n\n') 

    for remain in li2: 
     f3.write(dic2[remain]) 

    f3.write('++++++++++++++++++++++++++++++++++++++++ ')

来源

2011-12-14 23:13:07 eyquem

1

这工作;然而它真的在我看来非常奇怪的问题在第一个地方...对不起...

from urlparse import urlparse 
import os.path 

def read_links2(f): 
    for line in f: 
     line = line.strip() 
     url = urlparse(line) 
     if url.scheme in ('http', 'https'): 
      key = (url.netloc, os.path.split(url.path)[1]) 
      yield (key, url) 

links2 = dict(read_links2(open('f2.txt', 'U'))) 

for line in open('f1.txt', 'U'): 
    line = line.rstrip() 
    url = urlparse(line) 
    if url.scheme in ('http', 'https'): 
     key = (url.netloc, os.path.split(url.path)[1]) 
     if key in links2: 
      print links2[key].geturl() 
    else: 
     print line 

print 'More Link VIew:' 

for url in links2.values(): 
    if url.netloc == 'kashi.com': 
     print url.geturl() 


print '+++++++++++++++++++'

来源

2011-12-14 23:45:58 ondra

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