wizards-1.0.1: High level, generic library for interrogative user interfaces

Safe HaskellTrustworthy




data UnexpectedEOF Source

The Haskeline back-end will throw this exception if EOF is encountered when it is not expected. Specifically, when actions such as getInputLine return Nothing.



haskeline :: Wizard Haskeline a -> Wizard Haskeline aSource

A simple identity function, used to restrict types if the type inferred by GHC is too general. You could achieve the same effect with a type signature, but this is slightly less typing.

withSettings :: WithSettings :<: b => Settings IO -> Wizard b a -> Wizard b aSource

Modifies a wizard so that it will run with different Haskeline Settings to the top level input monad.