Re: Retrieving the last "$$"

[Joel E. Denny]

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.