[Bug-wget] Regular expression matching

[Gijs van Tulder]

Hi,

Here is a patch that adds the --acceptregex and --rejectregex options.

With these options it would be possible to do two things:

1. You can match complete urls, instead of just the directory prefix or 
the file name suffix (which you can do with --accept and 
--include-directories).
2. You can use regular expressions to do the matching, which is 
sometimes easier to than using a list of wildcard patterns.

Now this isn't a new idea (there are long discussions in the archive, 
see [1]). But somehow the previous attempts didn't make it, so I thought 
I'd send my own version. It's a small patch, I've been using it for a 
while and found it really useful.

I've made two versions of the patch: one uses PCRE, the other uses the 
gnulib regex library, which is probably easier to integrate.

Regards,

Gijs

[1] https://lists.gnu.org/archive/html/bug-wget/2009-09/msg00035.html

wget-ere-regex.patch
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wget-pcre-regex.patch
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