Linenoise.Repl

Helper functions and transformer to write your own REPLs.

Documentation

data ReplDirective

Directive to control voluntary REPL termination.

Constructors

ReplQuit

ReplContinue

Instances

Show ReplDirective

Defined in Linenoise.Repl

Methods

showsPrec :: Int -> ReplDirective -> ShowS

show :: ReplDirective -> String

showList :: [ReplDirective] -> ShowS

Eq ReplDirective

Defined in Linenoise.Repl

Methods

(==) :: ReplDirective -> ReplDirective -> Bool

(/=) :: ReplDirective -> ReplDirective -> Bool

newtype ReplT r s m a

Basic monad transformer with mutable state that can be used with all Linenoise.Unlift functions. You do not have to use this, but it's here to cover most of what you would need without having to roll your own newtype.

Constructors

ReplT

Fields

• unReplT :: ReaderT r (ReaderT (IORef s) m) a

Instances

Monad m => MonadReader r (ReplT r s m)

Defined in Linenoise.Repl

Methods

ask :: ReplT r s m r

local :: (r -> r) -> ReplT r s m a -> ReplT r s m a

reader :: (r -> a) -> ReplT r s m a

MonadIO m => MonadState s (ReplT r s m)

Defined in Linenoise.Repl

Methods

get :: ReplT r s m s

put :: s -> ReplT r s m ()

state :: (s -> (a, s)) -> ReplT r s m a

MonadTrans (ReplT r s)

Defined in Linenoise.Repl

Methods

lift :: Monad m => m a -> ReplT r s m a

MonadFail m => MonadFail (ReplT r s m)

Defined in Linenoise.Repl

Methods

fail :: String -> ReplT r s m a

MonadFix m => MonadFix (ReplT r s m)

Defined in Linenoise.Repl

Methods

mfix :: (a -> ReplT r s m a) -> ReplT r s m a

MonadIO m => MonadIO (ReplT r s m)

Defined in Linenoise.Repl

Methods

liftIO :: IO a -> ReplT r s m a

MonadZip m => MonadZip (ReplT r s m)

Defined in Linenoise.Repl

Methods

mzip :: ReplT r s m a -> ReplT r s m b -> ReplT r s m (a, b)

mzipWith :: (a -> b -> c) -> ReplT r s m a -> ReplT r s m b -> ReplT r s m c

munzip :: ReplT r s m (a, b) -> (ReplT r s m a, ReplT r s m b)

Alternative m => Alternative (ReplT r s m)

Defined in Linenoise.Repl

Methods

empty :: ReplT r s m a

(<|>) :: ReplT r s m a -> ReplT r s m a -> ReplT r s m a

some :: ReplT r s m a -> ReplT r s m [a]

many :: ReplT r s m a -> ReplT r s m [a]

Applicative m => Applicative (ReplT r s m)

Defined in Linenoise.Repl

Methods

pure :: a -> ReplT r s m a

(<*>) :: ReplT r s m (a -> b) -> ReplT r s m a -> ReplT r s m b

liftA2 :: (a -> b -> c) -> ReplT r s m a -> ReplT r s m b -> ReplT r s m c

(*>) :: ReplT r s m a -> ReplT r s m b -> ReplT r s m b

(<*) :: ReplT r s m a -> ReplT r s m b -> ReplT r s m a

Functor m => Functor (ReplT r s m)

Defined in Linenoise.Repl

Methods

fmap :: (a -> b) -> ReplT r s m a -> ReplT r s m b

(<$) :: a -> ReplT r s m b -> ReplT r s m a

Monad m => Monad (ReplT r s m)

Defined in Linenoise.Repl

Methods

(>>=) :: ReplT r s m a -> (a -> ReplT r s m b) -> ReplT r s m b

(>>) :: ReplT r s m a -> ReplT r s m b -> ReplT r s m b

return :: a -> ReplT r s m a

MonadPlus m => MonadPlus (ReplT r s m)

Defined in Linenoise.Repl

Methods

mzero :: ReplT r s m a

mplus :: ReplT r s m a -> ReplT r s m a -> ReplT r s m a

MonadCatch m => MonadCatch (ReplT r s m)

Defined in Linenoise.Repl

Methods

catch :: (HasCallStack, Exception e) => ReplT r s m a -> (e -> ReplT r s m a) -> ReplT r s m a

MonadThrow m => MonadThrow (ReplT r s m)

Defined in Linenoise.Repl

Methods

throwM :: (HasCallStack, Exception e) => e -> ReplT r s m a

MonadUnliftIO m => MonadUnliftIO (ReplT r s m)

Defined in Linenoise.Repl

Methods

withRunInIO :: ((forall a. ReplT r s m a -> IO a) -> IO b) -> ReplT r s m b

replM

Arguments

:: MonadUnliftIO m

=> ReplDirective

Directive on interrupt

-> Text

Prompt

-> (Text -> m ReplDirective)

Action

-> (Text -> m [Text])

Completion

-> m ()

Run a simple REPL.

runReplT :: MonadIO m => ReplT r s m a -> r -> s -> m (a, s)

Run a ReplT.