Control.Monad.Apiary.Filter.Internal

Documentation

function :: (SList c -> Request -> Maybe (SList c')) -> Apiary c' b -> Apiary c b

low level filter function.

function' :: (Request -> Maybe a) -> Apiary (Snoc as a) b -> Apiary as b

filter and append argument.

function_ :: (Request -> Bool) -> Apiary c b -> Apiary c b

filter only(not modify arguments).

focus :: (SList c -> Action (SList c')) -> Apiary c' a -> Apiary c a

filter by action. since 0.6.1.0.