Cabal-1.10.2.0: A framework for packaging Haskell software Contents Index

Distribution.ReadE Portability portable Maintainer cabal-devel@haskell.org

Contents ReadE Projections

Description

Simple parsing with failure

Synopsis

newtype ReadE a = ReadE { runReadE :: String -> Either ErrorMsg a } succeedReadE :: (String -> a) -> ReadE a failReadE :: ErrorMsg -> ReadE a parseReadE :: ReadE a -> ReadP r a readEOrFail :: ReadE a -> String -> a readP_to_E :: (String -> ErrorMsg) -> ReadP a a -> ReadE a

ReadE

newtype ReadE a

Parser with simple error reporting Constructors ReadE runReadE :: String -> Either ErrorMsg a Instances Functor ReadE

succeedReadE :: (String -> a) -> ReadE a

failReadE :: ErrorMsg -> ReadE a

Projections

parseReadE :: ReadE a -> ReadP r a

readEOrFail :: ReadE a -> String -> a

readP_to_E :: (String -> ErrorMsg) -> ReadP a a -> ReadE a

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