Re: [Haskell-beginners] Trying to find an alternative StateMonad

Hi, Sorry I can't be of much help here, but I have a question though:

data StateCmd a where        Put :: a -> StateCmd a        Undo :: StateCmd a        Redo :: StateCmd a                deriving (Show, Functor)

I'm not familiar with the above syntax (data ... where). What does it do exactly? Patrick -- ===================== Patrick LeBoutillier Rosemère, Québec, Canada