Support unicode channel names.

[sarg@…]

I am using bitlbee with libpurple-telegram. Unicode nicks work well with setting utf8_nicks on. Unfortunately unicode symbols in channel names are replaced with question marks. Seems that g_convert_with_fallback function fails to transliterate cyrillic symbols (german letters work fine).

I dug into the code and have found in irc_channel.c this comment:

	/* RFC 1459 keeps amazing me: While only a "few" chars are allowed
	   in nicknames, channel names can be pretty much anything as long
	   as they start with # or &. I'll be a little bit more strict and
	   disallow all non-printable characters. */
}}

I am wondering if it is possible to introduce new setting 'utf8_channels'?

[wartan.hachaturow@…]

Yes, I second that issue. Cyrillic channel names in telegram make groups unusable -- even if transliteration goes fine (supported by locale), you really can't use regular procedure with "chat list" followed by "chat add" and "/join" with telegram-purple. Even if you manage to create the channel, after joining any message triggers "sending message failed", and parting the channel triggers "nil: no such channel" from server.

[ashaihullin@…]

The same problem. Have huge number of question marks instead of channel names.

[denis@…]

The issue is still there. Is there any hopes to get it fixed please?