parsec-3.1.13.0: Monadic parser combinators

Copyright(c) Paolo Martini 2007
LicenseBSD-style (see the file libraries/parsec/LICENSE)
Maintainerderek.a.elkins@gmail.com
Stabilityprovisional
Portabilityportable
Safe HaskellSafe
LanguageHaskell2010

Text.Parsec.String

Description

Make Strings an instance of Stream with Char token type.

Synopsis

Documentation

type GenParser tok st = Parsec [tok] st Source #

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

parseFromFile p filePath runs a string 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) }