-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | Collection of combinators over standard typeclasses
--   
--   Collection of combinators over standard typeclasses
@package combinators
@version 0.1

module Combinators

-- | Generalization over many common natural transformations, including:
--   
--   <ul>
--   <li><tt>listToMaybe</tt></li>
--   <li><tt>maybeToList</tt></li>
--   <li><a>toList</a></li>
--   <li><pre><tt>either</tt> (<a>const</a> <tt>Nothing</tt>)
--   <tt>Just</tt></pre></li>
--   </ul>
alternate :: (Foldable f, Alternative g) => f a -> g a

-- | <a>alternate</a> extended with ability to map the wrapped value.
alternateMap :: (Foldable f, Alternative g) => (a -> b) -> f a -> g b

-- | <a>alternateMap</a> extended with ability to do the mapping in the
--   <a>Alternative</a> context.
alternateMapM :: (Foldable f, Alternative g) => (a -> g b) -> f a -> g b

-- | Indexed version of <a>forM</a>.
iforM :: (Monad m, Traversable f) => f a -> (Int -> a -> m b) -> m (f b)