Very small issue with code sample

Hi I finally bought it and started practicing it. Really nice stuff that does offer the opportunity to have a hang on ANTLR too.
It is a very fine book I intend to pair with the Fowler book on DSL.
Samples seem to work fine. I only have an issue with the parsing samples (Graphics.g centric). Works fine with file input, but interactive console mode seems stuck on Vista.
I can live with that as I am an absolute beginner with ANTLR and maybe missed the point during the practice.

Again very enjoyable book

Hi again, I made a fool of myself as usual. I was hitting a Ctrl-Z key instead of the Ctrl-C. Sorry for the inconvenience