On Jul 23, 2009, at 12:36 PM, tiefeng wu wrote:
2009/7/24 Philip Semanchuk <phi...@semanchuk.com>:
I know this will sound like a sarcastic comment, but it is sincere:
my
suggestion is that if you want to parse C/C++ (or Python, or Perl, or
Fortran, etc.), use a real parser, not regexes unless you're
willing to
sacrifice some accuracy. Sooner or later you'll come across some
code that
your regexes won't handle, like this --
#ifdef FOO_BAR
#include <this.h>
/* #else */
#include <that.h>
#endif
Parsing code is difficult...
I understand your point, thanks for your suggestion, Philip. And I've
met the problem like in your example
The reason I choose regex because I barely know about "real parser",
for me it still in some "dark area" :)
But I'll find something to learn.
Yes! Learning is always good. And as I said, if you don't mind missing
some unusual cases, regexes are fine. I don't know how accurate you
want your results to be.
As for real parsers, there's lots of them out there, although they may
be overkill for what you want to do. Here's one written entirely in
Python:
http://www.dabeaz.com/ply/
Whatever you choose, good luck with it.
Cheers
Philip
--
http://mail.python.org/mailman/listinfo/python-list
