Re: Patch: Support for non-ascii characters in imap group names

[Ted Zlatanov <tzz@lifelogs.com>]

On Sun, 21 Feb 2010 23:15:42 +0100 Martin Stjernholm <mast@lysator.liu.se> wrote: 

MS> [Sent this some time ago but I suspect it got caught in a spam queue, so
MS> I'm trying again. I apologize if it's a duplicate.]

Thank you, it was my fault for ignoring it.

MS> Hello, this patch should fix the long-standing problem with non-ascii
MS> characters in imap group names (see e.g.
MS> http://thread.gmane.org/gmane.emacs.gnus.general/67087 and
MS> http://thread.gmane.org/gmane.emacs.gnus.general/67209).

I know you have Emacs papers.  I don't know if you need Gnus papers as
well (since you can contribute to Gnus through Emacs).  So I'm comitting
the patch but Reiner should comment; I hope it doesn't need to be
reverted.  You can always sign the Gnus papers as well to be certain.

MS> It is done by making the nnimap back end support
MS> `gnus-group-name-charset-group-alist' and
MS> `gnus-group-name-charset-method-alist'. To allow non-ascii groups it's
MS> therefore necessary to configure them to use a sufficiently expressive
MS> coding system, e.g. UTF-8. The default value for
MS> `gnus-group-name-charset-group-alist' accomplishes that.

I agree this is a clumsy fix but don't want to reengineer the groups and
the agent for this.  I do think, however, that this could be a target
for a more ambitious Gnus rewrite that uses the newer Emacs features
added since version 20 or so :)

I'm not sure why you need

	(nnimap-close-group): Call `imap-current-mailbox' instead of using the
	variable `imap-current-mailbox'.

but left it in, assuming it was sensible.

Gnus folk, please test this if you can.  It may break other Gnus pieces
that assume an unencoded group name, but the way it's done seems to be
clean to me.

Thanks
Ted