Copyright	(c) Paolo Martini 2007
License	BSD-style (see the file libraries/parsec/LICENSE)
Maintainer	derek.a.elkins@gmail.com
Stability	provisional
Portability	portable
Safe Haskell	Safe
Language	Haskell2010

Text.Parsec.String

Description

Make Strings an instance of Stream with Char token type.

Synopsis

type Parser = Parsec String ()
type GenParser tok st = Parsec [tok] st
parseFromFile :: Parser a -> FilePath -> IO ( Either ParseError a)

Documentation

type Parser = Parsec String () Source #

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

parseFromFile :: Parser a -> FilePath -> 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)
             }