Cabal-3.0.0.0: A framework for packaging Haskell software

Copyright	Jose Iborra 2008
License	BSD3
Maintainer	cabal-devel@haskell.org
Portability	portable
Safe Haskell	None
Language	Haskell2010

Distribution.ReadE

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
readEOrFail :: ReadE a -> String -> a
parsecToReadE :: (String -> ErrorMsg) -> ParsecParser a -> ReadE a

ReadE

newtype ReadE a #

Parser with simple error reporting

Constructors

ReadE
Fields runReadE :: String -> Either ErrorMsg a

Instances

Functor ReadE #
Instance details Defined in Distribution.ReadE Methods fmap :: (a -> b) -> ReadE a -> ReadE b # (<$) :: a -> ReadE b -> ReadE a #

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

failReadE :: ErrorMsg -> ReadE a #

Projections

readEOrFail :: ReadE a -> String -> a #

parsecToReadE :: (String -> ErrorMsg) -> ParsecParser a -> ReadE a #