Re: push parser implemenation

[Joel E. Denny]

On Mon, 17 Apr 2006, Bob Rossi wrote:

> Hi everyone, I hope I can get some suggestions soon. I don't want this
> to be forgotten about. 
> 
> Either we can make the push parser a separate file

There are 4 skeletons now.  Push parser mode could be desirable for any of 
them.  Coding the push parser in separate skeletons could mean a total of 
8 skeletons and a lot of redundant code.  This doesn't seem like the right 
way to go.

>, we can allow the user to loose the 10% speed performance

I'm not concerned with this performance loss much for my current usage, 
but I imagine this is not acceptable to many Bison users.

>, I can attempt to do the above
> suggestion, or
> 
> I can see what happens if I declare the struct globally, and when in
> push-yacc and pure-yacc mode, declare variables on the stack with the
> same name as the struct's fields. This may improve the speed.

I don't have time to study these two alternatives and form a thoughtful 
opinion.  It seems that others don't at the moment either.  Maybe you 
could try one or both and report your findings.

Joel