[antlr-interest] Labeled subrules
Terence Parr
parrt at jguru.com
Thu Oct 31 09:08:55 PST 2002
On Thursday, October 31, 2002, at 04:10 AM, Anakreon Mejdi wrote:
> In the documentation is mentioned that the labeled subrules will be
> implemented in an other way.
>
> Does this mean that in the next release of antlr it will not be
> supported?
Well, it's not supported now ;) You have to do the subrule as you've
shown at the moment.
Sorry...
Terence
>
> Suppose I have this rule
> a
> :
> A^ B C l:(D^ (E)+)
> ;
>
> How can I achieve having the same AST the rule 'a' produces
> without labeled sub rule but having the D^ E subtle defined in rule
> 'a'?
>
> The only option I have is defining:
> a
> : A^ B C c
> ;
>
> c
> :
> D^ (E)+
> ;
>
> Thanks in advanced, Anakreon
>
>
>
>
>
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>
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