Re: [Haskell-cafe] Alternate instance Show (Maybe a)?

G'day all. Quoting Sergey Zaharchenko :

Yes, I think another Show-like class will probably be a better solution...

This is the one that I use. Very simple. import Text.PrettyPrint.HughesPJ class Pretty a where -- Equivalent of showsPrec prettyP :: Int -> a -> Doc prettyP _ x = pretty x -- Equivalent of shows pretty :: a -> Doc pretty x = prettyP 0 x Cheers, Andrew Bromage