I'm wondering what specials characters are there in existing nation and ruler names. I know that most if not all are forbidden in new nation and ruler names. But for example in the second oldest nation in CN, "República Argentina", there is an "ú".
I found until now in Alliance and Nation Names:
!*.='#üöú-
I'm trying to write a regex for nation/ruler/alliance names for an (admin-approved) script which analyzes the html-source of CN pages a user pastes into it.