Cabal-2.2.0.0: 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
parseReadE :: ReadE a -> ReadP r a
readEOrFail :: ReadE a -> String -> a
readP_to_E :: (String -> ErrorMsg) -> ReadP a a -> ReadE a
parsecToReadE :: (String -> ErrorMsg) -> ParsecParser a -> ReadE a

ReadE

newtype ReadE a Source #

Parser with simple error reporting

Constructors

ReadE
Fields runReadE :: String -> Either ErrorMsg a

Instances

Functor ReadE Source #
Instance details Methods fmap :: (a -> b) -> ReadE a -> ReadE b Source # (<$) :: a -> ReadE b -> ReadE a Source #

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 #

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