[xslt] regexp extension?

[Bruce Miller <bruce miller nist gov>]

Hi all;
   Has anyone thought about implementing the regexp extension?
(or already started !?!)

I'd be willing to try my hand at writing the glue (presumably
libexslt/regexp.c) providing there were an acceptable regexp
library to base it on. (I'm not in the mood to implement a
regexp library :>)

It doesn't appear that there already is such a library being
used in libxml or libxslt, unless I'm missing it.  Using one
would add an additional dependence, but someone handy with
configure could probably make the regexp extension enabled
only if an appropriate library is present?

At any rate, unless there's already such an extension in the
works, does anyone have a recommendation for which regexp
library would be best to use?

Thanks
bruce miller