Re: [Haskell-cafe] Reading showables

John, By convention, read . show is supposed to be id. However, in real life, this is often not the case. It all depends on the implementor, and this is a convention that seems to be broken pretty frequently. Often there is a show instance with no read or vice versa, and sometimes even when there is both read and show they are not inverses. Thomas. main = show . read Am 7. Dezember 2008 14:11 schrieb John Ky :

Hi,

Is there a way to read Showables?

main = do putStrLn $ show $ read

Thanks

-John

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