+
+-- | Convert map elements of the form "subN...sub2.sub1.dom.bit"
+-- into nested map and merge it
+splitSubdoms :: NmcDom -> NmcDom
+splitSubdoms base =
+ let
+ base' = base { domMap = Nothing }
+ in
+ case domMap base of
+ Nothing -> base'
+ Just sdmap -> (emptyNmcDom { domMap = Just sdmap' }) `mergeNmcDom` base'
+ where
+ sdmap' = foldrWithKey stow empty sdmap
+ stow fqdn sdom acc = insertWith mergeNmcDom fqdn' sdom' acc
+ where
+ (fqdn', sdom') =
+ nest (map unpack (splitOn (pack ".") (pack fqdn)), sdom)
+ nest ([], v) = (fqdn, v) -- can split result be empty?
+ nest ([k], v) = (k, v)
+ nest (k:ks, v) =
+ nest (ks, emptyNmcDom { domMap = Just (singleton k v) })