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tsurushuu/gist:1240228

Created September 25, 2011 04:28
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gistfile1.hs
fromResult :: Result a -> Maybe a
fromResult (Ok k) = Just k
fromResult (Error e) = Nothing
maybeFromObj :: JSON a => String -> JSObject JSValue -> Maybe a
maybeFromObj k o = maybe (Nothing) (fromResult . readJSON) (lookup k (fromJSObject o))
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