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Postings from March 2010
On Mon, 1 Mar 2010, H.Merijn Brand wrote:
> On Mon, 01 Mar 2010 11:43:27 -0700, karl williamson
> <public@khwilliamson.com> wrote:
>
> > Jarkko a long time ago that swashes and regex character classes should
> > be replaced by inversion lists for efficiency.
> >
> > Inversion lists can be searched binarily. bsearch() is a standard C
> > library routine, but the only mention of it in Perl is in the POSIX
> > module where it says it is not furnished. This makes me think there
> > must be a problem with using the library routine. Is there?
>
> Seems to be available on both my oldest HP-UX as well as on my oldest
> AIX. Do you need a probe for it in Configure?
It's in my old SVR3 manuals too, though with a simpler prototype (char
instead of void, and no const). The "unimplemented" message has been
there since perl 5.000. I don't remember any specific problem with the
function. I suspect it's unimplemented in POSIX.pm simply because it's
never been a high enough priority for anyone to actually figure out how
they'd like to map it into perl.
In short, if it makes sense to use it, I think you can go ahead and use
it.
--
Andy Dougherty doughera@lafayette.edu
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