Re: [Haskell-beginners] 'case of' question

On Thu, 23 Jun 2011 11:32:50 -0400 Brandon Allbery wrote:

On Thu, Jun 23, 2011 at 11:29, Brandon Allbery wrote:

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On Thu, Jun 23, 2011 at 11:02, Manfred Lotz wrote:

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The only idea I got is:

processX x  | x `elem` [ 1, 5, 76 ] = doThis  | x `elem` [ 112, 21 ] = doThat  | otherwise = doOtherwise

That's the correct way to do it.  The trick is to remember that the above is really a "case of":

(with the cat off my arm so I'm not whacking the wrong keys...)

:-)

...

case x of _ | x `elem` [1, 5, 76] -> doThis | x `elem` [112, 21] -> doThat | otherwise -> doSomethingElse

Thanks. That is interesting. -- Manfred