On 2/4/07, Martin DeMello <[EMAIL PROTECTED]> wrote:
I have a Data.Map.Map String -> (Layout, [String]) as follows:type Anagrams = [String] type Cell = (Layout, Anagrams) type WordMap = Map.Map String Cell exists str wmap = let a = Map.lookup (sort str) wmap in case a of Nothing -> False Just x -> case (find (== str) (snd x)) of Nothing -> False _ -> True the existence test looks ugly - any more compact way to write it?
How about: exists str = fromMaybe False . fmap (elem str.snd) . Map.lookup (sort str) -- Cheers, Lemmih _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
