It occurs to me that I've been assuming that the requirements for a SRFI sample implementation allow you to point to one or more existing implementaitons ("prior art").  Of course, that doesn't necessarily help other implementers.

What do people think?

John Cowan          http://vrici.lojban.org/~cowan        xxxxxx@ccil.org
The Penguin shall hunt and devour all that is crufty, gnarly and
bogacious; all code which wriggles like spaghetti, or is infested with
blighting creatures, or is bound by grave and perilous Licences shall it
capture.  And in capturing shall it replicate, and in replicating shall
it document, and in documentation shall it bring freedom, serenity and
most cool froodiness to the earth and all who code therein.  --Gospel of Tux