Re: [Haskell-cafe] Functors and the Visitor Pattern

Although, now I'm second guessing myself, because I can't figure out how we could create some design pattern that simulates an applicative functor. I'm pretty sure the Visitor pattern doesn't take you this far (but I am willing to be corrected). So, is there a way to create applicative functors in non-functional languages? What would that pattern look like?

Perhaps this paper can answer your question: Jeremy Gibbons, Bruno C.d.S. Oliveira The essence of the Iterator pattern http://web.comlab.ox.ac.uk/oucl/work/jeremy.gibbons/publications/iterator.pd... HTH, Andres -- Andres Loeh, Universiteit Utrecht mailto:andres@cs.uu.nl mailto:mail@andres-loeh.de http://www.andres-loeh.de