"Show" is for debug output. It's not a generic "to_string". See this thread [1] from last week for more info.

  - Clark

[1] https://groups.google.com/forum/#!topic/haskell-cafe/32EeI96b1VQ


On Wed, Mar 5, 2014 at 4:43 PM, <k@ioctl.it> wrote:
Hello!

I'm sure this has been answered many times before, but I can't find an
explanation for this behavior anywhere. The question I have is a general
one regarding 'show'. Why does

main = do
    putStrLn "ü"

➜  ~ runhaskell test.hs
ü


and:

main = do
    putStrLn $ show "ü"

➜  ~ runhaskell test.hs
"\252"

Thank you all for an enlightening answer already!

Best,

k
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