[antlr-interest] Samples or Examples w/ Action and / or Tree-Building Code?

[Randall R Schulz]

Hi,

I was wondering if there are examples of ANTLR v3 grammars that go 
beyond the mostly purely lexical and syntactic specifications as 
illustrated in the samples available from the ANTLR v3 page 
(<http://www.antlr.org/v3/index.html> / 
<http://www.antlr.org/download/examples-v3.tar.gz>)?

The closest those examples come to including significant action code is 
the "cminus.g" grammar (".../examples-v3/cminus/cminus.g").


Alternately, if there's no fleshed-out examples available currently, is 
there something that details how v3 differs from the amply documented 
v2 ANTLR?

Thanks

Randall Schulz