Ryan Bloor: > Data Tree a = Empty | Leaf a | Node a [(Tree a)] The Leaf constructor seems superfluous to me. Any (Leaf x) value is equivalent to (Node x []). So I rather just have
data Tree a = Empty | Node a [Tree a] which will mean less work for your task of writing processing functions, too. Kalman ---------------------------------------------------------------------- Get a free email account with anti spam protection. http://www.bluebottle.com/tag/2 _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe