;;; gnus-sum.el --- summary mode commands for Gnus
;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-;; 2005, 2006 Free Software Foundation, Inc.
+;; 2005, 2006, 2007 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
If this variable is `adopt', Gnus will make one of the \"children\"
the parent and mark all the step-children as such.
If this variable is `empty', the \"children\" are printed with empty
-subject fields. (Or rather, they will be printed with a string
+subject fields. (Or rather, they will be printed with a string
given by the `gnus-summary-same-subject' variable.)"
:group 'gnus-thread
:type '(choice (const :tag "off" nil)
:type 'boolean)
(defcustom gnus-auto-select-first t
- "*If non-nil, select the article under point.
-Which article this is is controlled by the `gnus-auto-select-subject'
-variable.
+ "If non-nil, select an article on group entry.
+An article is selected automatically when entering a group
+e.g. with \\<gnus-group-mode-map>\\[gnus-group-read-group], or via `gnus-summary-next-page' or
+`gnus-summary-catchup-and-goto-next-group'.
+
+Which article is selected is controlled by the variable
+`gnus-auto-select-subject'.
If you want to prevent automatic selection of articles in some
newsgroups, set the variable to nil in `gnus-select-group-hook'."
+ ;; Commands include...
+ ;; \\<gnus-group-mode-map>\\[gnus-group-read-group]
+ ;; \\<gnus-summary-mode-map>\\[gnus-summary-next-page]
+ ;; \\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]
:group 'gnus-group-select
:type '(choice (const :tag "none" nil)
(sexp :menu-tag "first" t)))
. gnus-summary-normal-read))
"*Controls the highlighting of summary buffer lines.
-A list of (FORM . FACE) pairs. When deciding how a a particular
+A list of (FORM . FACE) pairs. When deciding how a particular
summary line should be displayed, each form is evaluated. The content
of the face field after the first true form is used. You can change
how those summary lines are displayed, by editing the face field.
You can use the following variables in the FORM field.
-score: The article's score
+score: The article's score.
default: The default article score.
default-high: The default score for high scored articles.
default-low: The default score for low scored articles.
t
(not (cdr (gnus-data-find-list article)))))
-(defun gnus-make-thread-indent-array ()
- (let ((n 200))
- (unless (and gnus-thread-indent-array
- (= gnus-thread-indent-level gnus-thread-indent-array-level))
- (setq gnus-thread-indent-array (make-vector 201 "")
- gnus-thread-indent-array-level gnus-thread-indent-level)
- (while (>= n 0)
- (aset gnus-thread-indent-array n
- (make-string (* n gnus-thread-indent-level) ? ))
- (setq n (1- n))))))
+(defun gnus-make-thread-indent-array (&optional n)
+ (when (or n
+ (progn (setq n 200) nil)
+ (null gnus-thread-indent-array)
+ (/= gnus-thread-indent-level gnus-thread-indent-array-level))
+ (setq gnus-thread-indent-array (make-vector (1+ n) "")
+ gnus-thread-indent-array-level gnus-thread-indent-level)
+ (while (>= n 0)
+ (aset gnus-thread-indent-array n
+ (make-string (* n gnus-thread-indent-level) ? ))
+ (setq n (1- n)))))
(defun gnus-update-summary-mark-positions ()
"Compute where the summary marks are to go."
gnus-tmp-expirable gnus-tmp-subject-or-nil
&optional gnus-tmp-dummy gnus-tmp-score
gnus-tmp-process)
+ (if (>= gnus-tmp-level (length gnus-thread-indent-array))
+ (gnus-make-thread-indent-array (max (* 2 (length gnus-thread-indent-array))
+ gnus-tmp-level)))
(let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
(gnus-tmp-lines (mail-header-lines gnus-tmp-header))
(gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
infloop))
(defun gnus-make-threads ()
- "Go through the dependency hashtb and find the roots. Return all threads."
+ "Go through the dependency hashtb and find the roots. Return all threads."
(let (threads)
(while (catch 'infloop
(mapatoms
;; First go up in this thread until we find the root.
(setq last-id (gnus-root-id id)
headers (message-flatten-list (gnus-id-to-thread last-id)))
- ;; We have now found the real root of this thread. It might have
+ ;; We have now found the real root of this thread. It might have
;; been gathered into some loose thread, so we have to search
;; through the threads to find the thread we wanted.
(let ((threads gnus-newsgroup-threads)
(1+ (gnus-point-at-eol))
(gnus-delete-line)))))))
-(defun gnus-sort-threads-1 (threads func)
+(defun gnus-sort-threads-recursive (threads func)
(sort (mapcar (lambda (thread)
(cons (car thread)
(and (cdr thread)
- (gnus-sort-threads-1 (cdr thread) func))))
+ (gnus-sort-threads-recursive (cdr thread) func))))
threads) func))
+(defun gnus-sort-threads-loop (threads func)
+ (let* ((superthread (cons nil threads))
+ (stack (list (cons superthread threads)))
+ remaining-threads thread)
+ (while stack
+ (setq remaining-threads (cdr (car stack)))
+ (if remaining-threads
+ (progn (setq thread (car remaining-threads))
+ (setcdr (car stack) (cdr remaining-threads))
+ (if (cdr thread)
+ (push (cons thread (cdr thread)) stack)))
+ (setq thread (caar stack))
+ (setcdr thread (sort (cdr thread) func))
+ (pop stack)))
+ (cdr superthread)))
+
(defun gnus-sort-threads (threads)
"Sort THREADS."
(if (not gnus-thread-sort-functions)
threads
(gnus-message 8 "Sorting threads...")
- (let ((max-lisp-eval-depth 5000))
- (prog1 (gnus-sort-threads-1
- threads
- (gnus-make-sort-function gnus-thread-sort-functions))
- (gnus-message 8 "Sorting threads...done")))))
+ (prog1
+ (condition-case nil
+ (let ((max-lisp-eval-depth (max max-lisp-eval-depth 5000)))
+ (gnus-sort-threads-recursive
+ threads (gnus-make-sort-function gnus-thread-sort-functions)))
+ ;; Even after binding max-lisp-eval-depth, the recursive
+ ;; sorter might fail for very long threads. In that case,
+ ;; try using a (less well-tested) non-recursive sorter.
+ (error (gnus-sort-threads-loop
+ threads (gnus-make-sort-function
+ gnus-thread-sort-functions))))
+ (gnus-message 8 "Sorting threads...done"))))
(defun gnus-sort-articles (articles)
"Sort ARTICLES."
gnus-tmp-closing-bracket ?\>)
(setq gnus-tmp-opening-bracket ?\[
gnus-tmp-closing-bracket ?\]))
+ (if (>= gnus-tmp-level (length gnus-thread-indent-array))
+ (gnus-make-thread-indent-array
+ (max (* 2 (length gnus-thread-indent-array))
+ gnus-tmp-level)))
(setq
gnus-tmp-indentation
(aref gnus-thread-indent-array gnus-tmp-level)
(let ((case-fold-search t)
in-reply-to header p lines chars)
(goto-char (point-min))
- ;; Search to the beginning of the next header. Error messages
+ ;; Search to the beginning of the next header. Error messages
;; do not begin with 2 or 3.
(while (re-search-forward "^[23][0-9]+ " nil t)
(setq id nil
;; This implementation of this function, with nine
;; search-forwards instead of the one re-search-forward and
;; a case (which basically was the old function) is actually
- ;; about twice as fast, even though it looks messier. You
+ ;; about twice as fast, even though it looks messier. You
;; can't have everything, I guess. Speed and elegance
;; doesn't always go hand in hand.
(setq
If SUBJECT, only articles with SUBJECT are selected.
If BACKWARD, the previous article is selected instead of the next."
(interactive "P")
+ ;; Make sure we are in the summary buffer.
+ (unless (eq major-mode 'gnus-summary-mode)
+ (set-buffer gnus-summary-buffer))
(cond
;; Is there such an article?
((and (gnus-summary-search-forward unread subject backward)
(interactive)
(let ((gnus-verbose (max 6 gnus-verbose)))
(if (not gnus-newsgroup-dormant)
- (gnus-message 3 "No cached articles for this group")
+ (gnus-message 3 "No dormant articles for this group")
(gnus-summary-goto-subjects gnus-newsgroup-dormant))))
(defun gnus-summary-limit-include-dormant ()
;; will really go down to a leaf article first, before slowly
;; working its way up towards the root.
(when thread
- (let* ((max-lisp-eval-depth 5000)
+ (let* ((max-lisp-eval-depth (max 5000 max-lisp-eval-depth))
(children
(if (cdr thread)
(apply '+ (mapcar 'gnus-summary-limit-children
(gnus-sorted-nunion
(gnus-sorted-intersection gnus-newsgroup-unreads
gnus-newsgroup-downloadable)
- gnus-newsgroup-unfetched)))
+ (gnus-sorted-difference gnus-newsgroup-unfetched
+ gnus-newsgroup-cached))))
;; We actually mark all articles as canceled, which we
;; have to do when using auto-expiry or adaptive scoring.
(gnus-summary-show-all-threads)