Re: Re[2]: [Haskell-cafe] Pure functional GUI (was "a regressive view of support for imperativeprogramming in Haskell")

On 8/8/07, Bulat Ziganshin wrote: Hello Peter, Wednesday, August 8, 2007, 11:14:37 PM, you wrote:

...

[...] So could you please tell me more about the problem with pure functional GUIs

seems that such program will have no effects :)

Not necessarily. Just design the UI & IO aspects orthogonally. For instance, in the applicative functor version of Phooey ( http://haskell.org/haskellwiki/Phooey#Applicative_Functor), you can define a value of type UI (a -> IO ()). Similarly for TV ( http://haskell.org/haskellwiki/TV). - Conal