[antlr-interest] Ada 2005 grammar?

[Peter C. Chapin]

I see that there is an Ada 95 grammar by Oliver Kellog on the ANTLR web
site. I'm wondering if anyone happens to know of an Ada 2005 ANTLR grammar
that would be legally unencumbered enough for me to use in a research
project. I'm considering a few extensions to the Ada language and my goal
is to implement a preprocessor that translates my extended language into
"pure" Ada 2005. Obviously this will be easier if I can start with as much
of the Ada grammar already worked out as possible.

Thanks!

Peter