Re: automatic parser generation for ecpg

On Tue, Oct 21, 2008 at 08:31:54AM -0400, Tom Lane wrote:

> So it's all pretty messy and neither choice is exactly desirable. I
> think maintaining parallel versions of an ecpg parser generator
> would be no fun at all, though, so the perl choice seems more or
> less forced. We could either preserve the current state of play by
> shipping the derived bison file in tarballs, or bite the bullet and
> say perl is required to build from source in all cases (in which
> case I'd be inclined to try to get rid of Gen_fmgrtab.sh etc).

+1 for requiring it for source builds. We'll be able to simplify the
code quite a bit :)

> As against that ... does a2p produce code that is
> readable/maintainable?

Not that I've seen. There are modules on CPAN (I know, I know) for
dealing with lexx and yacc, and those are probably better for the
purpose.

Cheers,
David.
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
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