Request for example of state machine using generators

[MikeK]

"Tim Peters" <tim.one at home.com> wrote in message news:<mailman.1000792880.26234.python-list at python.org>...
> In 2.2a3 (or CVS), you can look at Tools/scripts/cleanfuture.py for an
> extended example of using generators to avoid state machines, there in a
> parsing context.  Lib/test/test_generators.py also has many examples of
> generator techniques.

And I thank you very much for the pointers.