Text.Chatty.Expansion.Vars

Documentation

data EnvVar

Some environment variable

Constructors

NotSet

Not set.

Literal String

An embeddable string.

forall a . Show a => Scalar a

Something we can show.

Array [EnvVar]

Array of that

Instances

Show EnvVar

newtype ExpanderT m a

Environment storage and variable expander.

Constructors

Expander

Fields

runExpanderT :: [(String, EnvVar)] -> m (a, [(String, EnvVar)])

Instances

MonadTrans ExpanderT

ChChannelPrinter Bool m0 => ChChannelPrinter Bool (ExpanderT m)

ChChannelPrinter Int m0 => ChChannelPrinter Int (ExpanderT m)

ChChannelPrinter Handle m0 => ChChannelPrinter Handle (ExpanderT m)

Monad m => Monad (ExpanderT m)

Monad m => Functor (ExpanderT m)

Monad m => Applicative (ExpanderT m)

ChAtoms m0 => ChAtoms (ExpanderT m)

ChCounter m0 => ChCounter (ExpanderT m)

MonadIO m => MonadIO (ExpanderT m)

ChRandom m0 => ChRandom (ExpanderT m)

ChClock m0 => ChClock (ExpanderT m)

ChFinalizer m0 => ChFinalizer (ExpanderT m)

ChScanner m0 => ChScanner (ExpanderT m)

ChBufferedScanner m0 => ChBufferedScanner (ExpanderT m)

ChPrinter m0 => ChPrinter (ExpanderT m)

ChSpawn m0 => ChSpawn (ExpanderT m)

(ChAtoms (ExpanderT m0), ChFilesystem m0) => ChFilesystem (ExpanderT m)

ChExpand m => ChExpand (ExpanderT m)

Monad m => ChExpanderEnv (ExpanderT m)

ChHistoryEnv m0 => ChHistoryEnv (ExpanderT m)

CanMount m0 n0 => CanMount (ExpanderT m) n

CanSave m0 n0 => CanSave (ExpanderT m) n

CanLoad m0 n0 => CanLoad (ExpanderT m) n

localEnvironment :: Functor m => ExpanderT m a -> m a

Run this function inside a blank environment.

forkEnvironment :: (Functor m, Monad m, MonadIO m) => ExpanderT m a -> m a

Run this function in a locally modifiable, but not exported environment

exportAll :: (Monad m, MonadIO m) => ExpanderT m ()

Export this local environment.

expandVars :: (Monad m, Functor m, ChExpanderEnv m) => String -> m String

Expand $variables

isAnum :: Char -> Bool

Is alphanumeric?

class Monad ee => ChExpanderEnv ee where

Typeclass for all environment storages.

Methods

mgetv :: String -> ee EnvVar

Get environment variable

mputv :: String -> EnvVar -> ee ()

Put environment variable

Instances

ChExpanderEnv IO

ChExpanderEnv m0 => ChExpanderEnv (AtomStoreT m)

ChExpanderEnv m0 => ChExpanderEnv (CounterT m)

ChExpanderEnv m0 => ChExpanderEnv (HandleCloserT m)

ChExpanderEnv m0 => ChExpanderEnv (InRedirT m)

ChExpanderEnv m0 => ChExpanderEnv (QuietT m)

ChExpanderEnv m0 => ChExpanderEnv (HereStringT m)

ChExpanderEnv m0 => ChExpanderEnv (ScannerBufferT m)

ChExpanderEnv m0 => ChExpanderEnv (RecorderT m)

ChExpanderEnv m0 => ChExpanderEnv (OutRedirT m)

ChExpanderEnv m0 => ChExpanderEnv (DeafT m)

ChExpanderEnv m0 => ChExpanderEnv (SpawnOverlayT m)

ChExpanderEnv m0 => ChExpanderEnv (JoinerT m)

ChExpanderEnv m0 => ChExpanderEnv (HandleFilterT m)

ChExpanderEnv m0 => ChExpanderEnv (BoolFilterT m)

ChExpanderEnv m0 => ChExpanderEnv (IntFilterT m)

ChExpanderEnv m0 => ChExpanderEnv (HandleArchiverT m)

ChExpanderEnv m0 => ChExpanderEnv (BoolArchiverT m)

ChExpanderEnv m0 => ChExpanderEnv (IntArchiverT m)

ChExpanderEnv m0 => ChExpanderEnv (NullFsT m)

Monad m => ChExpanderEnv (ExpanderT m)

ChExpanderEnv m0 => ChExpanderEnv (HistoryT m)

ChExpanderEnv m0 => ChExpanderEnv (HtmlPrinterT m)

ChExpanderEnv m0 => ChExpanderEnv (AnsiPrinterT m)