;;; nnvirtual.el --- virtual newsgroups access for Gnus
-;; Copyright (C) 1994,95,96,97,98 Free Software Foundation, Inc.
+
+;; Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+;; 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;; Author: David Moore <dmoore@ucsd.edu>
;; Lars Magne Ingebrigtsen <larsi@gnus.org>
-;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
+;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
;; 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
;; 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:
(require 'gnus-start)
(require 'gnus-sum)
(require 'gnus-msg)
-(require 'cl)
+(eval-when-compile (require 'cl))
(nnoo-declare nnvirtual)
-(defvoo nnvirtual-always-rescan nil
- "*If non-nil, always scan groups for unread articles when entering a group.
-If this variable is nil (which is the default) and you read articles
-in a component group after the virtual group has been activated, the
-read articles from the component group will show up when you enter the
-virtual group.")
+(defvoo nnvirtual-always-rescan t
+ "If non-nil, always scan groups for unread articles when entering a group.
+If this variable is nil and you read articles in a component group
+after the virtual group has been activated, the read articles from the
+component group will show up when you enter the virtual group.")
(defvoo nnvirtual-component-regexp nil
- "*Regexp to match component groups.")
+ "Regexp to match component groups.")
(defvoo nnvirtual-component-groups nil
"Component group in this nnvirtual group.")
(defvoo nnvirtual-current-group nil)
(defvoo nnvirtual-mapping-table nil
- "Table of rules on how to map between component group and article number
-to virtual article number.")
+ "Table of rules on how to map between component group and article number to virtual article number.")
(defvoo nnvirtual-mapping-offsets nil
"Table indexed by component group to an offset to be applied to article numbers in that group.")
(defvoo nnvirtual-status-string "")
-(eval-and-compile
- (autoload 'gnus-cache-articles-in-group "gnus-cache"))
+(autoload 'gnus-cache-articles-in-group "gnus-cache")
\f
(deffoo nnvirtual-retrieve-headers (articles &optional newsgroup
server fetch-old)
(when (nnvirtual-possibly-change-server server)
- (save-excursion
- (set-buffer nntp-server-buffer)
+ (with-current-buffer nntp-server-buffer
(erase-buffer)
(if (stringp (car articles))
'headers
(let ((gnus-use-cache t))
(setq result (gnus-retrieve-headers
articles cgroup nil))))
- (set-buffer nntp-server-buffer)
- ;; If we got HEAD headers, we convert them into NOV
- ;; headers. This is slow, inefficient and, come to think
- ;; of it, downright evil. So sue me. I couldn't be
- ;; bothered to write a header parse routine that could
- ;; parse a mixed HEAD/NOV buffer.
- (when (eq result 'headers)
- (nnvirtual-convert-headers))
- (goto-char (point-min))
- (while (not (eobp))
- (delete-region (point)
- (progn
- (setq carticle (read nntp-server-buffer))
- (point)))
-
- ;; We remove this article from the articles list, if
- ;; anything is left in the articles list after going through
- ;; the entire buffer, then those articles have been
- ;; expired or canceled, so we appropriately update the
- ;; component group below. They should be coming up
- ;; generally in order, so this shouldn't be slow.
- (setq articles (delq carticle articles))
-
- (setq article (nnvirtual-reverse-map-article cgroup carticle))
- (if (null article)
- ;; This line has no reverse mapping, that means it
- ;; was an extra article reference returned by nntp.
- (progn
- (beginning-of-line)
- (delete-region (point) (progn (forward-line 1) (point))))
- ;; Otherwise insert the virtual article number,
- ;; and clean up the xrefs.
- (princ article nntp-server-buffer)
- (nnvirtual-update-xref-header cgroup carticle
- prefix system-name)
- (forward-line 1))
- )
-
- (set-buffer vbuf)
- (goto-char (point-max))
- (insert-buffer-substring nntp-server-buffer))
+ (set-buffer nntp-server-buffer)
+ ;; If we got HEAD headers, we convert them into NOV
+ ;; headers. This is slow, inefficient and, come to think
+ ;; of it, downright evil. So sue me. I couldn't be
+ ;; bothered to write a header parse routine that could
+ ;; parse a mixed HEAD/NOV buffer.
+ (when (eq result 'headers)
+ (nnvirtual-convert-headers))
+ (goto-char (point-min))
+ (while (not (eobp))
+ (delete-region (point)
+ (progn
+ (setq carticle (read nntp-server-buffer))
+ (point)))
+
+ ;; We remove this article from the articles list, if
+ ;; anything is left in the articles list after going through
+ ;; the entire buffer, then those articles have been
+ ;; expired or canceled, so we appropriately update the
+ ;; component group below. They should be coming up
+ ;; generally in order, so this shouldn't be slow.
+ (setq articles (delq carticle articles))
+
+ (setq article (nnvirtual-reverse-map-article cgroup carticle))
+ (if (null article)
+ ;; This line has no reverse mapping, that means it
+ ;; was an extra article reference returned by nntp.
+ (progn
+ (beginning-of-line)
+ (delete-region (point) (progn (forward-line 1) (point))))
+ ;; Otherwise insert the virtual article number,
+ ;; and clean up the xrefs.
+ (princ article nntp-server-buffer)
+ (nnvirtual-update-xref-header cgroup carticle
+ prefix system-name)
+ (forward-line 1))
+ )
+
+ (set-buffer vbuf)
+ (goto-char (point-max))
+ (insert-buffer-substring nntp-server-buffer))
;; Anything left in articles is expired or canceled.
;; Could be smart and not tell it about articles already known?
(when articles
;; the nntp-server-buffer, which is where Gnus expects to find
;; them.
(prog1
- (save-excursion
- (set-buffer nntp-server-buffer)
+ (with-current-buffer nntp-server-buffer
(erase-buffer)
(insert-buffer-substring vbuf)
;; FIX FIX FIX, we should be able to sort faster than
(save-excursion
(when buffer
(set-buffer buffer))
- (let ((method (gnus-find-method-for-group
- nnvirtual-last-accessed-component-group)))
+ (let* ((gnus-override-method nil)
+ (method (gnus-find-method-for-group
+ nnvirtual-last-accessed-component-group)))
(funcall (gnus-get-function method 'request-article)
article nil (nth 1 method) buffer)))))
;; This is a fetch by number.
(t
(setq nnvirtual-last-accessed-component-group cgroup)
(if buffer
- (save-excursion
- (set-buffer buffer)
- (gnus-request-article-this-buffer (cdr amap) cgroup))
+ (with-current-buffer buffer
+ ;; We bind this here to avoid double decoding.
+ (let ((gnus-article-decode-hook nil))
+ (gnus-request-article-this-buffer (cdr amap) cgroup)))
(gnus-request-article (cdr amap) cgroup))))))))
t)))
-(deffoo nnvirtual-request-group (group &optional server dont-check)
+(deffoo nnvirtual-request-group (group &optional server dont-check info)
(nnvirtual-possibly-change-server server)
(setq nnvirtual-component-groups
(delete (nnvirtual-current-group) nnvirtual-component-groups))
(setq nnvirtual-current-group nil)
(nnheader-report 'nnvirtual "No component groups in %s" group))
(t
- (when (or (not dont-check)
- nnvirtual-always-rescan)
- (nnvirtual-create-mapping)
- (when nnvirtual-always-rescan
- (nnvirtual-request-update-info group (gnus-get-info group))))
(setq nnvirtual-current-group group)
+ (nnvirtual-create-mapping dont-check)
+ (when nnvirtual-always-rescan
+ (nnvirtual-request-update-info
+ (nnvirtual-current-group)
+ (gnus-get-info (nnvirtual-current-group))))
(nnheader-insert "211 %d 1 %d %s\n"
nnvirtual-mapping-len nnvirtual-mapping-len group))))
(let ((mart (nnvirtual-map-article article)))
(if mart
(gnus-request-type (car mart) (cdr mart))))
- (let ((method (gnus-find-method-for-group
- nnvirtual-last-accessed-component-group)))
- (gnus-request-type
- nnvirtual-last-accessed-component-group nil)))))
+ (gnus-request-type
+ nnvirtual-last-accessed-component-group nil))))
(deffoo nnvirtual-request-update-mark (group article mark)
(let* ((nart (nnvirtual-map-article article))
- (cgroup (car nart))
- ;; The component group might be a virtual group.
- (nmark (gnus-request-update-mark cgroup (cdr nart) mark)))
+ (cgroup (car nart)))
(when (and nart
- (= mark nmark)
+ (memq mark gnus-auto-expirable-marks)
+ ;; The component group might be a virtual group.
+ (= mark (gnus-request-update-mark cgroup (cdr nart) mark))
(gnus-group-auto-expirable-p cgroup))
(setq mark gnus-expirable-mark)))
mark)
t)
-(deffoo nnvirtual-request-list (&optional server)
- (nnheader-report 'nnvirtual "LIST is not implemented."))
-
-
(deffoo nnvirtual-request-newgroups (date &optional server)
(nnheader-report 'nnvirtual "NEWGROUPS is not supported."))
(let ((gnus-group-marked (copy-sequence nnvirtual-component-groups))
(gnus-expert-user t))
;; Make sure all groups are activated.
- (mapcar
+ (mapc
(lambda (g)
- (when (not (numberp (car (gnus-gethash g gnus-newsrc-hashtb))))
+ (when (not (numberp (gnus-group-unread g)))
(gnus-activate-group g)))
nnvirtual-component-groups)
- (save-excursion
- (set-buffer gnus-group-buffer)
+ (with-current-buffer gnus-group-buffer
(gnus-group-catchup-current nil all)))))
(cdr gnus-message-group-art)))))
(gnus-request-post (gnus-find-method-for-group group)))))
+
+(deffoo nnvirtual-request-expire-articles (articles group
+ &optional server force)
+ (nnvirtual-possibly-change-server server)
+ (setq nnvirtual-component-groups
+ (delete (nnvirtual-current-group) nnvirtual-component-groups))
+ (let (unexpired)
+ (dolist (group nnvirtual-component-groups)
+ (setq unexpired (nconc unexpired
+ (mapcar
+ #'(lambda (article)
+ (nnvirtual-reverse-map-article
+ group article))
+ (gnus-uncompress-range
+ (gnus-group-expire-articles-1 group))))))
+ (sort (delq nil unexpired) '<)))
+
\f
;;; Internal functions.
(defun nnvirtual-convert-headers ()
"Convert HEAD headers into NOV headers."
- (save-excursion
- (set-buffer nntp-server-buffer)
+ (with-current-buffer nntp-server-buffer
(let* ((dependencies (make-vector 100 0))
- (headers (gnus-get-newsgroup-headers dependencies))
- header)
+ (headers (gnus-get-newsgroup-headers dependencies)))
(erase-buffer)
- (while (setq header (pop headers))
- (nnheader-insert-nov header)))))
+ (mapc 'nnheader-insert-nov headers))))
(defun nnvirtual-update-xref-header (group article prefix system-name)
(looking-at
"[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t")
(goto-char (match-end 0))
- (unless (search-forward "\t" (gnus-point-at-eol) 'move)
+ (unless (search-forward "\t" (point-at-eol) 'move)
(insert "\t"))
;; Remove any spaces at the beginning of the Xref field.
- (while (= (char-after (1- (point))) ? )
+ (while (eq (char-after (1- (point))) ? )
(forward-char -1)
(delete-char 1))
;; component server prefix.
(save-restriction
(narrow-to-region (point)
- (or (search-forward "\t" (gnus-point-at-eol) t)
- (gnus-point-at-eol)))
+ (or (search-forward "\t" (point-at-eol) t)
+ (point-at-eol)))
projects / gnus / blobdiff