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/Haskell 8

Text.Parsec.String

Copyright (c) Paolo Martini 2007
License BSD-style (see the file libraries/parsec/LICENSE)
Maintainer [email protected]
Stability provisional
Portability portable
Safe Haskell Safe
Language Haskell2010

Description

Make Strings an instance of Stream with Char token type.

type Parser = Parsec String () Source

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)
             }

© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/8.6.1/docs/html/libraries/parsec-3.1.13.0/Text-Parsec-String.html