mkInfo _ = Nothing
maybeBstrToString :: Maybe BVal -> Maybe String
-maybeBstrToString Nothing = Nothing
-maybeBstrToString (Just s) = let (Bstr bs) = s
- in Just (unpack bs)
+maybeBstrToString (Just (Bstr bs)) = Just $ unpack bs
+maybeBstrToString _ = Nothing
mkMetaInfo :: BVal -> Maybe Metainfo
mkMetaInfo (Bdict m) = let (Just info') = mkInfo $ m ! "info"