[Haskell] Exceptions

[Johannes Waldmann]

in the following example, the handler won't catch the exception
because of lazy evaluation. therefore, it's a different story
than with exceptions in ML, Python, whatever strict language.

main = do
     xs <- return [ 1, 2, error "throw" ]
         `catch` \ any -> do
             putStrLn "caught"
	    return [ 4, 5, 6 ]
     print xs
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