Re: glr.c cleanup

[Hans Aberg]

On 8 Dec 2005, at 08:58, Joel E. Denny wrote:

> > Under C++, I think one should have:
> >
> > namespace yy {
> >
> >    class stack;
> >    ...
> > }
>
> This corresponds to yyGLRStack.  yystack is *the* instance, and  
> it's local
> to yyparse().  For any function that needs a pointer to that yystack,
> yystackp is the parameter name.  For C, none of these are in the user
> interface.  Does this make sense?

I think that under C, you have implemented your own stacks, which  
people are not expected to change, and therefore they need not be in  
the user interface. Under C++, it is different.

> > > > So in order to keep multilingual similarity, that suggests just  
> > > > naming it
> > > > "yystack", without a "p". Names with a "p" added should then be  
> > > > reserved
> > > > for C implementation variables, but not in the interface.
> > >
> > > I don't believe yystack is part of the interface.
> >
> > Under C++, one would be able to choose stack, with at least two  
> > standard
> > choices: std::vector, and std::deque.
>
> I see.  I need to study this thing some day.

A question that might coming up is how to sync the two C and C++  
implementations. At least they should be easily readable for  
comparison, for easy development. One canm think of ways of going  
further, to autmate it, though that is alter question.

  Hans Aberg