;;; gnus-topic.el --- a folding minor mode for Gnus group buffers
-;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001
;; Free Software Foundation, Inc.
;; Author: Ilja Weis <kult@uni-paderborn.de>
:type 'hook
:group 'gnus-topic)
+(when (featurep 'xemacs)
+ (add-hook 'gnus-topic-mode-hook 'gnus-xmas-topic-menu-add))
+
(defcustom gnus-topic-line-format "%i[ %(%{%n%}%) -- %A ]%v\n"
"Format of topic lines.
It works along the same lines as a normal formatting string,
(dolist (topic (gnus-current-topics topic))
(gnus-topic-fold t))
(gnus-topic-goto-topic topic))
-
+
(defun gnus-current-topic ()
"Return the name of the current topic."
(let ((result
(beginning-of-line)
(get-text-property (point) 'gnus-active)))
-(defun gnus-topic-find-groups (topic &optional level all lowest)
- "Return entries for all visible groups in TOPIC."
+(defun gnus-topic-find-groups (topic &optional level all lowest recursive)
+ "Return entries for all visible groups in TOPIC.
+If RECURSIVE is t, return groups in its subtopics too."
(let ((groups (cdr (assoc topic gnus-topic-alist)))
info clevel unread group params visible-groups entry active)
(setq lowest (or lowest 1))
(cdr (assq 'visible params)))
;; Add this group to the list of visible groups.
(push (or entry group) visible-groups)))
- (nreverse visible-groups)))
+ (setq visible-groups (nreverse visible-groups))
+ (when recursive
+ (if (eq recursive t)
+ (setq recursive (cdr (gnus-topic-find-topology topic))))
+ (mapcar (lambda (topic-topology)
+ (setq visible-groups
+ (nconc visible-groups
+ (gnus-topic-find-groups
+ (caar topic-topology)
+ level all lowest topic-topology))))
+ (cdr recursive)))
+ visible-groups))
(defun gnus-topic-previous-topic (topic)
"Return the previous topic on the same level as TOPIC."
;;; Generating group buffers
-(defun gnus-group-prepare-topics (level &optional all lowest
+(defun gnus-group-prepare-topics (level &optional predicate lowest
regexp list-topic topic-level)
"List all newsgroups with unread articles of level LEVEL or lower.
Use the `gnus-group-topics' to sort the groups.
-If ALL is non-nil, list groups that have no unread articles.
+If PREDICTE is a function, list groups that the function returns non-nil;
+if it is t, list groups that have no unread articles.
If LOWEST is non-nil, list all newsgroups of level LOWEST or higher."
(set-buffer gnus-group-buffer)
(let ((buffer-read-only nil)
- (lowest (or lowest 1)))
+ (lowest (or lowest 1))
+ (not-in-list
+ (and gnus-group-listed-groups
+ (copy-sequence gnus-group-listed-groups))))
(when (or (not gnus-topic-alist)
(not gnus-topology-checked-p))
(erase-buffer))
;; List dead groups?
- (when (and (>= level gnus-level-zombie)
- (<= lowest gnus-level-zombie))
+ (when (or gnus-group-listed-groups
+ (and (>= level gnus-level-zombie)
+ (<= lowest gnus-level-zombie)))
(gnus-group-prepare-flat-list-dead
(setq gnus-zombie-list (sort gnus-zombie-list 'string<))
gnus-level-zombie ?Z
regexp))
- (when (and (>= level gnus-level-killed) (<= lowest gnus-level-killed))
+ (when (or gnus-group-listed-groups
+ (and (>= level gnus-level-killed)
+ (<= lowest gnus-level-killed)))
(gnus-group-prepare-flat-list-dead
(setq gnus-killed-list (sort gnus-killed-list 'string<))
- gnus-level-killed ?K
- regexp))
+ gnus-level-killed ?K regexp)
+ (when not-in-list
+ (unless gnus-killed-hashtb
+ (gnus-make-hashtable-from-killed))
+ (gnus-group-prepare-flat-list-dead
+ (gnus-delete-if (lambda (group)
+ (or (gnus-gethash group gnus-newsrc-hashtb)
+ (gnus-gethash group gnus-killed-hashtb)))
+ not-in-list)
+ gnus-level-killed ?K regexp)))
;; Use topics.
(prog1
- (when (< lowest gnus-level-zombie)
+ (when (or (< lowest gnus-level-zombie)
+ gnus-group-listed-groups)
(if list-topic
(let ((top (gnus-topic-find-topology list-topic)))
(gnus-topic-prepare-topic (cdr top) (car top)
- (or topic-level level) all
- nil lowest))
+ (or topic-level level) predicate
+ nil lowest regexp))
(gnus-topic-prepare-topic gnus-topic-topology 0
- (or topic-level level) all
- nil lowest)))
-
+ (or topic-level level) predicate
+ nil lowest regexp)))
(gnus-group-set-mode-line)
- (setq gnus-group-list-mode (cons level all))
+ (setq gnus-group-list-mode (cons level predicate))
(gnus-run-hooks 'gnus-group-prepare-hook))))
-(defun gnus-topic-prepare-topic (topicl level &optional list-level all silent
- lowest)
+(defun gnus-topic-prepare-topic (topicl level &optional list-level
+ predicate silent
+ lowest regexp)
"Insert TOPIC into the group buffer.
If SILENT, don't insert anything. Return the number of unread
articles in the topic and its subtopics."
(let* ((type (pop topicl))
(entries (gnus-topic-find-groups
- (car type) list-level
- (or all
+ (car type)
+ (if gnus-group-listed-groups
+ gnus-level-killed
+ list-level)
+ (or predicate gnus-group-listed-groups
(cdr (assq 'visible
(gnus-topic-hierarchical-parameters
(car type)))))
- lowest))
+ (if gnus-group-listed-groups 0 lowest)))
(visiblep (and (eq (nth 1 type) 'visible) (not silent)))
(gnus-group-indentation
(make-string (* gnus-topic-indent-level level) ? ))
(while topicl
(incf unread
(gnus-topic-prepare-topic
- (pop topicl) (1+ level) list-level all
- (not visiblep) lowest)))
+ (pop topicl) (1+ level) list-level predicate
+ (not visiblep) lowest regexp)))
(setq end (point))
(goto-char beg)
;; Insert all the groups that belong in this topic.
(while (setq entry (pop entries))
- (when visiblep
- (if (stringp entry)
- ;; Dead groups.
- (gnus-group-insert-group-line
- entry (if (member entry gnus-zombie-list)
- gnus-level-zombie gnus-level-killed)
- nil (- (1+ (cdr (setq active (gnus-active entry))))
- (car active))
- nil)
- ;; Living groups.
- (when (setq info (nth 2 entry))
- (gnus-group-insert-group-line
- (gnus-info-group info)
- (gnus-info-level info) (gnus-info-marks info)
- (car entry) (gnus-info-method info)))))
- (when (and (listp entry)
- (numberp (car entry)))
- (incf unread (car entry)))
- (when (listp entry)
- (setq tick t)))
+ (when (if (stringp entry)
+ (gnus-group-prepare-logic
+ entry
+ (and
+ (or (not gnus-group-listed-groups)
+ (if (< list-level gnus-level-zombie) nil
+ (let ((entry-level
+ (if (member entry gnus-zombie-list)
+ gnus-level-zombie gnus-level-killed)))
+ (and (<= entry-level list-level)
+ (>= entry-level lowest)))))
+ (cond
+ ((stringp regexp)
+ (string-match regexp entry))
+ ((functionp regexp)
+ (funcall regexp entry))
+ ((null regexp) t)
+ (t nil))))
+ (setq info (nth 2 entry))
+ (gnus-group-prepare-logic
+ (gnus-info-group info)
+ (and (or (not gnus-group-listed-groups)
+ (let ((entry-level (gnus-info-level info)))
+ (and (<= entry-level list-level)
+ (>= entry-level lowest))))
+ (or (not (functionp predicate))
+ (funcall predicate info))
+ (or (not (stringp regexp))
+ (string-match regexp (gnus-info-group info))))))
+ (when visiblep
+ (if (stringp entry)
+ ;; Dead groups.
+ (gnus-group-insert-group-line
+ entry (if (member entry gnus-zombie-list)
+ gnus-level-zombie gnus-level-killed)
+ nil (- (1+ (cdr (setq active (gnus-active entry))))
+ (car active))
+ nil)
+ ;; Living groups.
+ (when (setq info (nth 2 entry))
+ (gnus-group-insert-group-line
+ (gnus-info-group info)
+ (gnus-info-level info) (gnus-info-marks info)
+ (car entry) (gnus-info-method info)))))
+ (when (and (listp entry)
+ (numberp (car entry)))
+ (incf unread (car entry)))
+ (when (listp entry)
+ (setq tick t))))
(goto-char beg)
;; Insert the topic line.
(when (and (not silent)
;; Remove topic infestation.
(unless gnus-topic-mode
(remove-hook 'gnus-summary-exit-hook 'gnus-topic-update-topic)
- (remove-hook 'gnus-group-change-level-function
- 'gnus-topic-change-level)
+ (setq gnus-group-change-level-function nil)
(remove-hook 'gnus-check-bogus-groups-hook 'gnus-topic-clean-alist)
(setq gnus-group-prepare-function 'gnus-group-prepare-flat)
(setq gnus-group-sort-alist-function 'gnus-group-sort-flat))
(unless parent
(setq parent (caar gnus-topic-topology)))
(let ((top (cdr (gnus-topic-find-topology parent)))
- (full-topic (or full-topic `((,topic visible)))))
+ (full-topic (or full-topic (list (list topic 'visible nil nil)))))
(unless top
(error "No such parent topic: %s" parent))
(if previous
(gnus-group-list-groups)
(gnus-topic-goto-topic topic))
-;; FIXME:
-;; 1. When the marked groups are overlapped with the process
+;; FIXME:
+;; 1. When the marked groups are overlapped with the process
;; region, the behavior of move or remove is not right.
-;; 2. Can't process on several marked groups with a same name,
+;; 2. Can't process on several marked groups with a same name,
;; because gnus-group-marked only keeps one copy.
(defun gnus-topic-move-group (n topic &optional copyp)
(interactive
(list current-prefix-arg
(completing-read "Move to topic: " gnus-topic-alist nil t)))
- (let ((use-marked (and (not n) (not (gnus-region-active-p))
+ (let ((use-marked (and (not n) (not (gnus-region-active-p))
gnus-group-marked t))
(groups (gnus-group-process-prefix n))
(topicl (assoc topic gnus-topic-alist))
(defun gnus-topic-remove-group (&optional n)
"Remove the current group from the topic."
(interactive "P")
- (let ((use-marked (and (not n) (not (gnus-region-active-p))
+ (let ((use-marked (and (not n) (not (gnus-region-active-p))
gnus-group-marked t))
(groups (gnus-group-process-prefix n)))
(mapcar
(when (gnus-current-topic)
(gnus-topic-goto-topic (gnus-current-topic))
(if permanent
- (setcar (cddr
+ (setcar (cddr
(cadr
(gnus-topic-find-topology (gnus-current-topic))))
'hidden))
(when (gnus-group-topic-p)
(if (not permanent)
(gnus-topic-remove-topic t nil)
- (let ((topic
- (gnus-topic-find-topology
+ (let ((topic
+ (gnus-topic-find-topology
(completing-read "Show topic: " gnus-topic-alist nil t))))
(setcar (cddr (cadr topic)) nil)
(setcar (cdr (cadr topic)) 'visible)
(gnus-group-list-groups)))))
-(defun gnus-topic-mark-topic (topic &optional unmark)
- "Mark all groups in the topic with the process mark."
- (interactive (list (gnus-group-topic-name)))
+(defun gnus-topic-mark-topic (topic &optional unmark recursive)
+ "Mark all groups in the TOPIC with the process mark.
+If RECURSIVE is t, mark its subtopics too."
+ (interactive (list (gnus-group-topic-name)
+ nil
+ (and current-prefix-arg t)))
(if (not topic)
(call-interactively 'gnus-group-mark-group)
(save-excursion
- (let ((groups (gnus-topic-find-groups topic gnus-level-killed t)))
+ (let ((groups (gnus-topic-find-groups topic gnus-level-killed t nil
+ recursive)))
(while groups
(funcall (if unmark 'gnus-group-remove-mark 'gnus-group-set-mark)
(gnus-info-group (nth 2 (pop groups)))))))))
-(defun gnus-topic-unmark-topic (topic &optional unmark)
- "Remove the process mark from all groups in the topic."
- (interactive (list (gnus-group-topic-name)))
+(defun gnus-topic-unmark-topic (topic &optional dummy recursive)
+ "Remove the process mark from all groups in the TOPIC.
+If RECURSIVE is t, unmark its subtopics too."
+ (interactive (list (gnus-group-topic-name)
+ nil
+ (and current-prefix-arg t)))
(if (not topic)
(call-interactively 'gnus-group-unmark-group)
- (gnus-topic-mark-topic topic t)))
+ (gnus-topic-mark-topic topic t recursive)))
(defun gnus-topic-get-new-news-this-topic (&optional n)
"Check for new news in the current topic."
(interactive "P")
(if (not (gnus-group-topic-p))
(gnus-group-get-new-news-this-group n)
- (gnus-topic-mark-topic (gnus-group-topic-name))
+ (gnus-topic-mark-topic (gnus-group-topic-name) nil (and n t))
(gnus-group-get-new-news-this-group)))
(defun gnus-topic-move-matching (regexp topic &optional copyp)
(mapcar `(lambda (top)
(gnus-topic-sort-topics-1 top ,reverse))
(sort (cdr top)
- '(lambda (t1 t2)
+ '(lambda (t1 t2)
(string-lessp (caar t1) (caar t2)))))))
(setcdr top (if reverse (reverse subtop) subtop))))
top)
(defun gnus-topic-sort-topics (&optional topic reverse)
"Sort topics in TOPIC alphabeticaly by topic name.
If REVERSE, reverse the sorting order."
- (interactive
- (list (completing-read "Sort topics in : " gnus-topic-alist nil t
+ (interactive
+ (list (completing-read "Sort topics in : " gnus-topic-alist nil t
(gnus-current-topic))
current-prefix-arg))
(let ((topic-topology (or (and topic (cdr (gnus-topic-find-topology topic)))
(defun gnus-topic-move (current to)
"Move the CURRENT topic to TO."
- (interactive
- (list
+ (interactive
+ (list
(gnus-group-topic-name)
(completing-read "Move to topic: " gnus-topic-alist nil t)))
(unless (and current to)
(gnus-subscribe-alphabetically newsgroup)
;; Add the group to the topic.
(nconc (assoc topic gnus-topic-alist) (list newsgroup))
- (throw 'end t))))))
-
+ (throw 'end t)))
+ nil)))
+
(provide 'gnus-topic)
;;; gnus-topic.el ends here
projects / gnus / blobdiff