"Arthur A. Gleckler" <*@speechcode.com> writes:
> Scheme Request for Implementation 171, "Transducers,"

This looks like the Foldable typeclass in recent versions of GHC
Haskell, but the SRFI doesn't note the similarity.  I've heard of Clojure transducers but have never examined them, so I don't know how
much they resemble Foldable.

I wonder if taking a look at Foldable could be helpful for working out
details of the Transducers SRFI.