[plt-scheme] Newbie macro problem

My objection is that trying over and over via an exception handler
doesn't seem very clear. It can be really frustrating to maintain code
of a "clever" person, especially in a language with relatively complex
features like the non-local control in exception handlers.

Of course, I don't accuse John of this in general! From what I've seen,
his code is very clear and I know he takes great care to make it so.

Robby