Re: [HACKERS] parser changes

On Wed, Feb 16, 2000 at 01:26:22AM -0500, Tom Lane wrote:
> >> Do you have a pretty good way to track changes in gram.y? Let me know
> >> if you want some help (though I won't be able to for a week or so).

Right now I'm up-to-date. But I have yet to finish my own todo for 7.0.

> > I told him to keep a copy of the gram.y he uses, and merge changes from
> > the current version against the copy he has that matched the current
> > ecpg.

That's exactly how I do it. I run diff from time to tim and add the changes
to my version by hand.

> It seems to me that this whole business of tracking a hand-maintained
> modified copy of gram.y is wrong.  There ought to be a way for ecpg to
> just incorporate the backend grammar by reference, plus a few rules
> on top for ecpg-specific constructs.

I would love this. But frankly I don't see how we can accomblish this. After
all ECPG has to print out the statment word by word while the backend puts
it into internal structure.

> It's probably too late to do anything in this line for 7.0, but
> I suggest we think about it for future releases.

Any ideas anyone?

Michael
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