[antlr-interest] Doubt About using custom classes from returing values

[Jim Idle]

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> -----Original Message-----
> From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-
> bounces at antlr.org] On Behalf Of Victor Giordano
> Sent: Tuesday, August 10, 2010 2:17 PM
> To: antlr-interest at antlr.org
> Subject: [antlr-interest] Doubt About using custom classes from returing
> values
> 
> Hi There!! Me Again!.
> I have another simple cuestion (i hope the answer be simple too!).
> 
> So if a wanna use rules that return values but custom types values, like,
in
> java, objects instances from custom classes.
> Example:
> 
> streetFightRule returns [MyHappyClass MyReturnObj] :
> TOKEN 'VS' TORYU
> {
> 	MyReturnObj = new MyHappyClass (TOKEN,TORYU); };
> 
> How i configure this? With my working proyect.. I am a huge fan of
> netbeans.. by the way, if you know a way of integrating all in one tell me
> please!.
> 
> Well that it's all!!.
> Thankssss again!!.
> Cya.
> 
> 
> El 10/08/2010 05:31 p.m., Victor Giordano escribió:
> > Thanks Junkman!!! But it's still doesn't work... :(.
> > I have another example:
> >
> > rule: TOKEN1? TOKEN2 ->  ^(TOKEN1 TOKEN2) Works when token1 actually
> > exists, but when no.. :( ugly things happen..
> >
> > Well, thanks for advance again!!.
> > Cya.
> >
> >
> >
> > El 10/08/2010 05:00 p.m., Junkman escribió:
> >> Hi Victor,
> >>
> >> Victor Giordano wrote:
> >>> Hi, i am a newbie. Trying to figure out how to work with AST tree
> >>> and
> >>>
> >>> ...
> >>>
> >>> butttttttt if i want to use rewrite rules... how do i thread the
> >>> repetion EBNF operator like * or +.
> >>>
> >>> expr : term (('+'|'-') term)* ->   term ^(('+'|'-') term)* ;
> >>>
> >>
> >> try this:
> >>
> >> expr: ( term ->   term )
> >>         ( ( '+' | '-' ) term ->   ^( ( '+' | '-' ) $expr term ) )* ;
> >>
> >>
> >> Not sure if the terms need to be distinguished with labels.
> >>
> >> The Antlr reference book describes the use of rewrite rule inside
> >> subrule in more detail.
> >>
> >> J
> >>
> >
> >
> > List: http://www.antlr.org/mailman/listinfo/antlr-interest
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> >
> 
> 
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