[antlr-interest] Is it possible to capture the input of a wildcard for tree construction inside a block of multiple occurrences?

[Ralf Cremerius]

Hi,

I just have a question about some detail in ANTLR v3:

I'm writing a parser grammar generating an AST. In one specific rule, I need to use the wildcard (.) inside some block of multiple occurrences, but I also need the matched input to construct a tree from it. Can this be done somehow? I tried to use a label but this didn't work.

rule:	     (
	       APOSTROPHE!
	       (options {greedy=false;} : .  )* 
	       APOSTROPHE!
	       )+
	       -> ^( ----?---- );

Or am I just asking for too much and this is conceptually forbidden?

Thanks in advance for reading,
  Ralf Cremerius
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