Hi,

Here is the solution that I found and that it works:

rule : T1 extraRule T3 ...
extraRule
  : { isT2Alowed }?=> T2?
  | { isSomethingElse }?=> T4?
  | /* nothing */
  ;

Regards,
Gabriel



-- 
MSc Gabriel Petrovay
MCSA, MCDBA, MCAD
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