[Haskell-cafe] Explaining monads

Kim-Ee Yeoh a.biurvOir4 at asuhan.com
Sun Aug 12 15:43:49 EDT 2007

David Menendez wrote:
> This is probably because no one has found a compelling use case for
> comonadic-style programming in Haskell. There have been some
> interesting papers, such as "Comonadic functional attribute
> evaluation" by Uustalu and Vene, but nothing as compelling as Wadler's
> "Monads for functional programming".

That same "Comonadic" paper describes how every zipper is a
comonad. I bet if we found more examples of zippers, comonads would
be in business. Much as I respect Huet 1997, more zipper tutorials
wouldn't harm either.

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