Henrik Nilsson
Just like chatter and chattee, employer and employee, there is an iterator (usually as part of an enumerator/ee) and an iteratee.
Thanks for the attempt to explain. But I, at least, remain mystified, and I agree with Douglas that the terminology is confusing.
FWIW, I always thought it was a kind of pun on the iterators in OO-land. There, the iterator is a cursor-like object, and the program controls it to iterate over the input -- typically a collection or similar. Iteratees invert this, the "program" is in the form of an iteratee, and it is being iterated by the input (enumerator). So the iterator is actively controlling a passive (or reactive) input, while the iteratee is reactively processing an active or controlling input. Or something, I'm hardly an authority on this. I hope it makes sense. -k -- If I haven't seen further, it is by standing in the footprints of giants