[antlr-interest] Any way to introduce a base class for TreeParser/Lexer/Parser?

[Gerald B. Rosenberg]

I would like to remove as much as possible the action code from the grammar 
file.

This could be easily done if, in the grammar file, I could specify that the 
TreeParser (or Parser or Lexer) extends from my own custom action library 
class that otherwise maintains the necessary class hierarchy, i.e., 
inherits from antlr.TreeParser.  Seems that the "extends" clauses are 
referencing keywords rather than actual class names.

Is there some alternate notation for specifying a base class that I am 
missing?  Or, is there a better pattern for implementing externalized 
action code?  Does 3.0 provide any additional features?

Thanks,
Gerald
----
Gerald B. Rosenberg, Esq.
NewTechLaw
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