Re: gram.y=>preproc.y

Michael Meskes <meskes(at)postgresql(dot)org> writes:
> The attached version now is able to generate an ecpg parser without a single
> change in gram.y.

Sweet.

> Also included is a perl version of the script created by a2p
> and fixed by me. Unfortunately a2p did not generate working code, so I guess
> eventually we have to only work with the perl version. I guess a perl hacker
> can beautify the script quite a bit.

We should probably standardize on the perl version, ugly or not, because
otherwise we'll have a difference in build process between Unix and
Windows machines. Personally I don't really care how ugly it is as long
as no one has to look at it ;-) ... but if someone wants to beautify the
perl script they're surely welcome to do so.

A few notes:

* before committing we need to see the proposed diffs to the Makefiles
and the Windows build scripts.

* As-is, the first few lines of parse.pl contain an unportable hardwired
assumption about where the perl executable is. I'd suggest removing
those lines and having the makefile call the script as

$(PERL) parse.pl ...

* Can we get a $PostgreSQL$ version identifier into each file that
will be added to CVS?

regards, tom lane