;;; gnus-bcklg.el --- backlog functions for Gnus
-;; Copyright (C) 1996,97 Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Copyright (C) 1996-2016 Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
;; 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
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
(defun gnus-backlog-buffer ()
"Return the backlog buffer."
(or (get-buffer gnus-backlog-buffer)
- (save-excursion
- (set-buffer (get-buffer-create gnus-backlog-buffer))
- (buffer-disable-undo (current-buffer))
+ (with-current-buffer (gnus-get-buffer-create gnus-backlog-buffer)
+ (buffer-disable-undo)
(setq buffer-read-only t)
- (gnus-add-current-to-buffer-list)
(get-buffer gnus-backlog-buffer))))
(defun gnus-backlog-setup ()
(defun gnus-backlog-shutdown ()
"Clear all backlog variables and buffers."
+ (interactive)
(when (get-buffer gnus-backlog-buffer)
- (kill-buffer gnus-backlog-buffer))
+ (gnus-kill-buffer gnus-backlog-buffer))
(setq gnus-backlog-hashtb nil
gnus-backlog-articles nil))
(defun gnus-backlog-enter-article (group number buffer)
- (gnus-backlog-setup)
- (let ((ident (intern (concat group ":" (int-to-string number))
- gnus-backlog-hashtb))
- b)
- (if (memq ident gnus-backlog-articles)
- () ; It's already kept.
+ (when (and (numberp number)
+ (not (gnus-virtual-group-p group)))
+ (gnus-backlog-setup)
+ (let ((ident (intern (concat group ":" (int-to-string number))
+ gnus-backlog-hashtb))
+ b)
+ (if (memq ident gnus-backlog-articles)
+ () ; It's already kept.
;; Remove the oldest article, if necessary.
- (and (numberp gnus-keep-backlog)
- (>= (length gnus-backlog-articles) gnus-keep-backlog)
+ (and (numberp gnus-keep-backlog)
+ (>= (length gnus-backlog-articles) gnus-keep-backlog)
(gnus-backlog-remove-oldest-article))
- (push ident gnus-backlog-articles)
- ;; Insert the new article.
- (save-excursion
- (set-buffer (gnus-backlog-buffer))
- (let (buffer-read-only)
- (goto-char (point-max))
- (unless (bolp)
- (insert "\n"))
- (setq b (point))
- (insert-buffer-substring buffer)
- ;; Tag the beginning of the article with the ident.
- (gnus-put-text-property b (1+ b) 'gnus-backlog ident))))))
+ (push ident gnus-backlog-articles)
+ ;; Insert the new article.
+ (with-current-buffer (gnus-backlog-buffer)
+ (let (buffer-read-only)
+ (goto-char (point-max))
+ (unless (bolp)
+ (insert "\n"))
+ (setq b (point))
+ (insert-buffer-substring buffer)
+ ;; Tag the beginning of the article with the ident.
+ (if (> (point-max) b)
+ (gnus-put-text-property b (1+ b) 'gnus-backlog ident)
+ (gnus-error 3 "Article %d is blank" number))))))))
(defun gnus-backlog-remove-oldest-article ()
- (save-excursion
- (set-buffer (gnus-backlog-buffer))
+ (with-current-buffer (gnus-backlog-buffer)
(goto-char (point-min))
(if (zerop (buffer-size))
() ; The buffer is empty.
beg end)
(when (memq ident gnus-backlog-articles)
;; It was in the backlog.
- (save-excursion
- (set-buffer (gnus-backlog-buffer))
+ (with-current-buffer (gnus-backlog-buffer)
(let (buffer-read-only)
(when (setq beg (text-property-any
(point-min) (point-max) 'gnus-backlog
t))
(setq gnus-backlog-articles (delq ident gnus-backlog-articles)))))))
-(defun gnus-backlog-request-article (group number buffer)
- (when (numberp number)
+(defun gnus-backlog-request-article (group number &optional buffer)
+ (when (and (numberp number)
+ (not (gnus-virtual-group-p group)))
(gnus-backlog-setup)
(let ((ident (intern (concat group ":" (int-to-string number))
gnus-backlog-hashtb))
beg end)
(when (memq ident gnus-backlog-articles)
;; It was in the backlog.
- (save-excursion
- (set-buffer (gnus-backlog-buffer))
+ (with-current-buffer (gnus-backlog-buffer)
(if (not (setq beg (text-property-any
(point-min) (point-max) 'gnus-backlog
ident)))
(setq end
(next-single-property-change
(1+ beg) 'gnus-backlog (current-buffer) (point-max)))))
- (let ((buffer-read-only nil))
- (erase-buffer)
- (insert-buffer-substring gnus-backlog-buffer beg end)
- t)))))
+ (with-current-buffer (or (current-buffer) buffer)
+ (let ((buffer-read-only nil))
+ (erase-buffer)
+ (insert-buffer-substring gnus-backlog-buffer beg end)))
+ t))))
(provide 'gnus-bcklg)
projects / gnus / blobdiff