Channel names do not support unicode characters

[lecodergh]

I noticed today channel names on freenode don't support unicode characters, specifically things like æ commonly included for use in domain names. Is this a feature which could be implemented?

[Mikaela]

Do other IRCds accept it? I am not fully sure, but I think this should possibly go through IRCv3 first where I see only issues for Unicode nicks (ircv3/ircv3-specifications#259, ircv3/ircv3-specifications#272).

In any case I doubt freenode would start implementing something like this, so the feature should first come to Charybdis (if it isn't there yet) and then be merged to IRCd-seven from there.

[ilbelkyr]

This isn't too hard to do, but quite hard to do properly. There are various points to consider – confusables, casefolding, normalization, what characters to allow – hence I suspect these will need significant consideration first.