[antlr-interest] Unanswered FAQ question: how to handle multiple return values?

[Ric Klaren]

On Wed, May 15, 2002 at 12:40:50AM -0000, jsrs701 wrote:
> There's a FAQ question that I suddenly am very interested in.  :)
> 
> http://www.jguru.com/forums/view.jsp?EID=305752

For some vague reason jguru doesn't show a reply button :P

> "ANTLR allows to specify multiple return values for a rule. What is 
> the syntax to get those from a subrule? In PCCTS rule specifikation 
> and usage looked the same: rule > [ret1,ret2] How do I express this 
> with ANTLR 2.*?"
> 
> Anybody know how to handle this?  Besides you, Ter?  I would hope you 
> already know the answer to this.  :)

Think this is a documentation bug. Not 100% sure though, I really cannot
recall anything in the codegenerators that would support this.

In C++ I'd use a 'tuple' class like provided by the boost library
(www.boost.org).

Cheers,

Ric
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