Cabal-1.8.0.4: A framework for packaging Haskell software Source code 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 Source

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

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

failReadE :: ErrorMsg -> ReadE a Source

Projections

parseReadE :: ReadE a -> ReadP r a Source

readEOrFail :: ReadE a -> String -> a Source

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

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