+-}
+-- | 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 { domSubmap = Nothing }
+ in
+ case domSubmap base of
+ Nothing -> base'
+ Just sdmap -> (def { domSubmap = Just sdmap' }) `merge` base'
+ where
+ sdmap' = foldrWithKey stow empty sdmap
+ stow fqdn sdom acc = insertWith merge fqdn' sdom' acc
+ where
+ (fqdn', sdom') =
+ nest (filter (/= "") (splitOnDots fqdn), sdom)
+ splitOnDots s = map unpack (splitOn (pack ".") (pack s))
+ nest ([], v) = (fqdn, v) -- can split result be empty?
+ nest ([k], v) = (k, v)
+ nest (k:ks, v) =
+ nest (ks, def { domSubmap = Just (singleton k v) })
+
+-- | transfer some elements of `base` into `sub`, notably TLSA
+propagate :: NmcDom -> NmcDom -> NmcDom
+propagate base sub = sub -- FIXME implement it