Re: gcc fails when multiple groups are specified

[Simon Josefsson <jas@extundo.com>]

Bill White <billw@wolfram.com> writes:

> This is an old, old hack and it smells a bit funky:
>
> (setq gnus-message-archive-group
>       '((concat
> 	 "nnml:archive."
> 	 (format-time-string "%Y-%m" (current-time))
> 	 (if (message-mail-p)
> 	     (when (string-match "[A-Za-z]" gnus-newsgroup-name)
> 	       ", "))
> 	 (if (message-mail-p)
> 	     (when (string-match "[A-Za-z]" gnus-newsgroup-name)
> 	       gnus-newsgroup-name)))))

The string within gnus-message-archive-group should be one group, not
several (at least this is how I read the docstring for g-m-a-g, and it
hasn't changed).  If you want to return several groups, do:

(setq gnus-message-archive-group
      '((list
	 (concat
	  "nnml:archive."
	  (format-time-string "%Y-%m" (current-time)))
	 (if (message-mail-p)
	     (when (string-match "[A-Za-z]" gnus-newsgroup-name)
	       gnus-newsgroup-name)))))

I added a GNUS-NEWS section, feel free to suggest improvements:

** Group Carbon Copy (GCC) quoting

To support groups that contains SPC and other weird characters, groups
are quoted before they are placed in the Gcc: header.  While this
should not cause problems, errorenous local customization may cause
problems.  In particular, if you have local customizations (e.g.,
variables such as gnus-message-archive-group) that return the string
"nnml:foo, nnml:bar" (indicating Gcc into two groups) you must change
it to return the list ("nnml:foo" "nnml:bar"), otherwise the Gcc: line
will be quoted incorrectly.  Note that returning the string "nnml:foo,
nnml:bar" was incorrect earlier, it just didn't generate any problems.