broquaint++. Very clever indeed.

I wish I'd written that :). I have had half a dozen attempts at doing so and got near to something usable a few times, but always got hung up on weird syntax and error handling.

You could remove the need for the 'sub' keyword on the 'default' with a prototype, but that would be inconsistant with 'case'. Now, if only prototypes allowed the use of & in the positions other than the first to accept a bare-block, this could be damn nearly perfect.

Nice!