agent categories

agent categories

[Jochen Küpper]

I cannot create any agent categories via the customization interface,
and don't know how to do it by hand. (If someone tells me how to do
the latter, that would be fine:)

Having problems with my agent categories I thought I delete the
.../agent/lib/categories file and start anew. So I did delete the
file, fire up Gnus, press J c to get the category list, where default
is already provided. So I press 'e' to edit it, then just say done and
get the following backtrace:
,----
| Debugger entered--Lisp error: (wrong-type-argument sequencep ignore)
|   gnus-category-insert-line((default (agent-groups . ignore) (agent-predicate . short)))
|   gnus-category-prepare()
|   gnus-category-list()
|   (progn (switch-to-buffer (get-buffer gnus-category-buffer)) (gnus-category-list))
|   (if (get-buffer gnus-category-buffer) (progn (switch-to-buffer ...) (gnus-category-list)))
|   (when (get-buffer gnus-category-buffer) (switch-to-buffer (get-buffer gnus-category-buffer)) (gnus-category-list))
|   (lambda (&rest ignore) (let* (... ...) (while widgets ...)) (gnus-category-write) (gnus-kill-buffer (current-buffer)) (when (get-buffer gnus-category-buffer) (switch-to-buffer ...) (gnus-category-list)))((push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) (push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) nil)
|   widget-apply((push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) :notify (push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) nil)
|   widget-item-action((push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) nil)
|   widget-apply((push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) :action nil)
|   widget-apply-action((push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) nil)
|   widget-button-press(54)
| * call-interactively(widget-button-press)
|   recursive-edit()
|   byte-code("Æ\b!ˆÇ ˆÈ	!ˆ\nƒ?
|   debug(error (wrong-type-argument listp complete))
|   gnus-function-implies-unread-1(complete)
|   gnus-predicate-implies-unread(complete)
|   gnus-agent-fetch-headers("nntp+DFN:gnu.emacs.gnus")
|   gnus-agent-fetch-group-1("nntp+DFN:gnu.emacs.gnus" (nntp "DFN" (nntp-address "news.cis.dfn.de")))
|   gnus-agent-fetch-session()
|   call-interactively(gnus-agent-fetch-session)
`----


Looking around I cannot really figure out what the file should look
like, but I did try the following by hand
,----[.../agent/lib/categories]
| ((default short nil nil) (complete true nil nil))
`----
which comes up with an error when I try to fetch (J s):
,----
|   gnus-function-implies-unread-1(complete)
|   gnus-predicate-implies-unread(complete)
|   gnus-agent-fetch-headers("nntp+DFN:gnu.emacs.gnus")
|   gnus-agent-fetch-group-1("nntp+DFN:gnu.emacs.gnus" (nntp "DFN" (nntp-address "news.cis.dfn.de")))
|   gnus-agent-fetch-session()
| * call-interactively(gnus-agent-fetch-session)
|   recursive-edit()
|   byte-code("Æ\b!ˆÇ ˆÈ	!ˆ\nƒ?
|   debug(error (wrong-type-argument sequencep ignore))
|   gnus-category-insert-line((default (agent-groups . ignore) (agent-predicate . short)))
|   gnus-category-prepare()
|   gnus-category-list()
|   (progn (switch-to-buffer (get-buffer gnus-category-buffer)) (gnus-category-list))
|   (if (get-buffer gnus-category-buffer) (progn (switch-to-buffer ...) (gnus-category-list)))
|   (when (get-buffer gnus-category-buffer) (switch-to-buffer (get-buffer gnus-category-buffer)) (gnus-category-list))
|   (lambda (&rest ignore) (let* (... ...) (while widgets ...)) (gnus-category-write) (gnus-kill-buffer (current-buffer)) (when (get-buffer gnus-category-buffer) (switch-to-buffer ...) (gnus-category-list)))((push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) (push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) nil)
|   widget-apply((push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) :notify (push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) nil)
|   widget-item-action((push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) nil)
|   widget-apply((push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) :action nil)
|   widget-apply-action((push-button :args nil :value "Done" :notify (lambda (&rest ignore) (let* ... ...) (gnus-category-write) (gnus-kill-buffer ...) (when ... ... ...)) :button-overlay #<overlay in no buffer> :from #<marker (before-insertion) in no buffer> :to #<marker in no buffer>) nil)
|   widget-button-press(54)
| * call-interactively(widget-button-press)
|   recursive-edit()
|   byte-code("Æ\b!ˆÇ ˆÈ	!ˆ\nƒ?
|   debug(error (wrong-type-argument listp complete))
|   gnus-function-implies-unread-1(complete)
|   gnus-predicate-implies-unread(complete)
|   gnus-agent-fetch-headers("nntp+DFN:gnu.emacs.gnus")
|   gnus-agent-fetch-group-1("nntp+DFN:gnu.emacs.gnus" (nntp "DFN" (nntp-address "news.cis.dfn.de")))
|   gnus-agent-fetch-session()
|   call-interactively(gnus-agent-fetch-session)
`----

I am using Emacs 21.2.1 and Gnus 5.10.3 on cygwin.

I am almost sure it's me, but what am I doing wrong?

Greetings,
Jochen
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