Control.FromSum

Monadic in return value

fromEitherM

fromEitherOrM

fromMaybeM

fromMaybeOrM

Monadic in both return and sum-type value

fromEitherMM

fromEitherOrMM

fromMaybeMM

fromMaybeOrMM

Completely non-monadic functions

fromEither

fromEitherOr

fromMaybe

fromMaybeOr

Collapsing funtions

collapseEither

collapseExceptT