because that would be extremely uncommon compared to aue, eue or que.
The only exception is the prefix "ge", after which, according to
corpus statistics, a \"u can be expected.
aee -> ae
oe -> ö
oee -> oe
-ue -> ü
+ue -> ü (not after a/e/q)
uee -> ue
sz -> ß
szz -> sz
("UEE" ["UE"])
("uee" ["ue"])
("szz" ["sz"])
- )
+ ("ge" ["ge"])
+ ("eue" ["eue"])
+ ("Eue" ["Eue"])
+ ("aue" ["aue"])
+ ("Aue" ["Aue"])
+ ("que" ["que"])
+ ("Que" ["Que"])
+)
(quail-define-package
"icelandic-postfix" "Latin-1" "IS<" t