parsec-3.1.6: Monadic parser combinators

Copyright(c) Paolo Martini 2007
LicenseBSD-style (see the LICENSE file)
Maintainerderek.a.elkins@gmail.com
Stabilityprovisional
Portabilityportable
Safe HaskellSafe-Inferred
LanguageHaskell98

Text.Parsec.ByteString

Description

Convinience definitions for working with ByteStrings.

Synopsis

Documentation

parseFromFile :: Parser a -> String -> IO (Either ParseError a) Source

parseFromFile p filePath runs a strict 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)
             }