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

[Victor Giordano]

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
>>
>
>
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