| 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) 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) }