| 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
Documentation
parseFromFile :: Parser a -> FilePath -> IO (Either ParseError a) #
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)
             }