Re: [Haskell-beginners] Is this overkill?

On Fri, Apr 03, 2009 at 08:58:41PM -0500, Zachary Turner wrote:

trueIndices = curry $ map fst . filter snd . zip [0..] . map (uncurry (&&)) . (uncurry zip)

Just some tips: note that map (uncurry f) . zip === zipWith f curry $ f . uncurry g === (f .) . g so trueIndices = ((map fst . filter snd . zip [0..]) .) . zipWith (&&) There must be some combinators to avoid the '((...) .) .' thing, though. I just don't remember :). HTH, -- Felipe.