Re: Retrieving the last "$$"

[F van der Meeren]

Thank you, that worked.
If you want I can keep you updated about the project...

On 23 Jul 2009, at 18:35, Joel E. Denny wrote:

> On Thu, 23 Jul 2009, F van der Meeren wrote:
>
> > > > But when the parser has finished parsing, I need to get a hold on  
> > > > the last
> > > > "$$".
> > >
> > > By "the last $$", do you mean the semantic value of the start  
> > > symbol?
> > > One way is to add a new start symbol and rule:
> >
> > By "$$" I mean the last semantic value that has been constructed by  
> > the many
> > grammar rules. The application is window-based, so there will be  
> > more than one
> > instance at any given time.
> >
> > > start_new: start_old { /* access $1 here */ } ;
>
> You can use %parse-param to specify a pointer argument, p, for
> yypush_parse.  You can then set *p in the final semantic action.