;;; gnus-bcklg.el --- backlog functions for Gnus
-;; Copyright (C) 1996 Free Software Foundation, Inc.
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003
+;; Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; This file is part of GNU Emacs.
;;; Code:
+(eval-when-compile (require 'cl))
+
(require 'gnus)
;;;
"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))
+ (set-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 (string-match "^nnvirtual" 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.
+ (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.
+ (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
(1+ beg) 'gnus-backlog (current-buffer) (point-max)))
(delete-region beg end)
;; Return success.
- t)))))))
+ 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 (string-match "^nnvirtual" group)))
(gnus-backlog-setup)
(let ((ident (intern (concat group ":" (int-to-string number))
gnus-backlog-hashtb))
(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)))))
+ (save-excursion
+ (and buffer (set-buffer buffer))
+ (let ((buffer-read-only nil))
+ (erase-buffer)
+ (insert-buffer-substring gnus-backlog-buffer beg end)))
+ t))))
(provide 'gnus-bcklg)