-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/
-- | permutation Applicative and Monad with many mtl instances
--
-- Based on "Parsing Permutation Phrases", by Arthur Baars, Andres Loeh
-- and S. Doaitse Swierstra, Haskell Workshop 2001. The
-- implementation given here does not include explicit optional actions,
-- and instead implements Alternative and MonadPlus. m
-- <*> (lift n <|> pure a)
-- should be used where addOpt m a n would be used.
@package perm
@version 0.3.0.0
module Control.Monad.Perm
-- | The permutation monad
data PermT m a
-- | Unwrap a PermT, combining actions using the MonadPlus
-- for f.
runPermT :: MonadPlus m => PermT m a -> m a
-- | A version of lift that can be used with just an
-- Applicative for m.
liftPerm :: Applicative m => m a -> PermT m a
-- | Lift a monad homomorphism from m to n into a monad
-- homomorphism from PermT m to PermT n.
hoistPerm :: Monad n => (forall a. m a -> n a) -> PermT m b -> PermT n b
module Control.Applicative.Perm
-- | The permutation applicative
type Perm = PermT
-- | Unwrap a Perm, combining actions using the Alternative
-- for f.
runPerm :: Alternative m => Perm m a -> m a
-- | A version of lift that can be used with just an
-- Applicative for m.
liftPerm :: Applicative m => m a -> PermT m a
-- | Lift a monad homomorphism from m to n into a monad
-- homomorphism from PermT m to PermT n.
hoistPerm :: Monad n => (forall a. m a -> n a) -> PermT m b -> PermT n b