how to remove c++ comments from a cpp file?

[Laurent Rahuel]

And using the codecs module

[CODE]
import codecs

f = codecs.open("show_btchina.user.js","r","utf-8")
modf = codecs.open("modified.js","w","utf-8")
for line in f:
     idx = line.find(u"//")
     if idx==0:
         continue
     elif idx>0:
         line = line[:idx]+u'\n'
     modf.write(line)
modf.close()
f.close()
[/CODE]

Gabriel Genellina wrote:

> At Friday 26/1/2007 06:54, Frank Potter wrote:
> 
>>[CODE]
>>import re
>>
>>f=open("show_btchina.user.js","r").read()
>>f=unicode(f,"utf8")
>>
>>r=re.compile(ur"//[^\r\n]+$", re.UNICODE|re.VERBOSE)
>>f_new=r.sub(ur"",f)
>>
>>open("modified.js","w").write(f_new.encode("utf8"))
>>[/CODE]
>>
>>And, the problem is, it seems that only the last comment is removed.
>>How can I remove all of the comments, please?
> 
> Note that it's not as easy as simply deleting from // to end of line,
> because those characters might be inside a string literal. But if you
> can afford the risk, this is a simple way without re:
> 
> f = open("show_btchina.user.js","r")
> modf = open("modified.js","w")
> for line in f:
>      uline=unicode(line,"utf8")
>      idx = uline.find("//")
>      if idx==0:
>          continue
>      elif idx>0:
>          uline = uline[:idx]+'\n'
>      modf.write(uline.encode("utf8"))
> modf.close()
> f.close()
> 
>