Re: Future of our regular expression code

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Billy Earney <billy(dot)earney(at)gmail(dot)com>
Cc: Jay Levitt <jay(dot)levitt(at)gmail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Greg Stark <stark(at)mit(dot)edu>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Future of our regular expression code
Date: 2012-02-20 22:20:55
Message-ID: 3493.1329776455@sss.pgh.pa.us
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Billy Earney <billy(dot)earney(at)gmail(dot)com> writes:
> Thanks for your reply. So is the group leaning towards just maintaining
> the current regex code base, or looking into introducing a new library
> (RE2, PCRE, etc)? Or is this still open for discussion?

Well, introducing a new library would create compatibility issues that
we'd just as soon not deal with, so I think that that's only likely
to be seriously entertained if we decide that Spencer's code is
unmaintainable. That's not a foregone conclusion; IMO the only fact
in evidence is that the Tcl community isn't getting it done.

Since Brendan Jurd has volunteered to try to split that code out into a
standalone library, I think such a decision really has to wait until we
see if (a) he's successful and (b) the result attracts some kind of
community around it. So in short, let's give him a couple years and
then if things are no better we'll revisit this issue.

regards, tom lane

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