| Portability | portable |
|---|---|
| Stability | provisional |
| Maintainer | derek.a.elkins@gmail.com |
| Safe Haskell | Safe-Inferred |
Text.Parsec.ByteString.Lazy
- type Parser = Parsec ByteString ()
- type GenParser t st = Parsec ByteString st
- parseFromFile :: Parser a -> String -> IO (Either ParseError a)
Documentation
type Parser = Parsec ByteString ()
type GenParser t st = Parsec ByteString st
parseFromFile :: Parser a -> String -> IO (Either ParseError a)
parseFromFile p filePath runs a lazy bytestring parser p on the
input read from filePath using readFile. Returns either a ParseError
(Left) or a value of type a (Right).
main = do{ result <- parseFromFile numbers "digits.txt"
; case result of
Left err -> print err
Right xs -> print (sum xs)
}