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authorMatthias P. Braendli <matthias.braendli@mpb.li>2013-12-02 22:56:10 +0100
committerMatthias P. Braendli <matthias.braendli@mpb.li>2013-12-02 22:56:10 +0100
commit2b722cf3bdd267c999f25c4f1c2ebb4cc4d27cb4 (patch)
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parent40860a46fa0a22cc376b015e36744c8573f92654 (diff)
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+data Fruit = Apple | Orange
+ deriving Show
+
+whichFruit f = case f of
+ "apple" -> Just Apple
+ "orange" -> Just Orange
+ _ -> Nothing
+
+