[antlr-interest] syntactic predicates

[a_j_key]

Hi all,

I'm stuck with the following: I need to match the rule:
int a, b, c; 
like follows: if variable is followed by COMMA than create a varNode,
otherwise create varDecl. I got the following

varDecl 
  : (varDecl COMMA)=>
      (varDecl)*
  | varDecl
  ;

I don't know what I'm doing wrong. Could anyone give me a hint?

Many thanks in advance,

a.j.key
   


 

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