mirror/emacs
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-12-11 09:20:51 +00:00
Code Issues Releases Activity
f5ccc0ccc9
emacs/lisp/nnkiboze.el
Lars Magne Ingebrigtsen 231f989be9 New version.
1996-06-25 22:21:39 +00:00

389 lines
14 KiB
EmacsLisp
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

;;; nnkiboze.el --- select virtual news access for Gnus
;; Copyright (C) 1995,96 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
;; Keywords: news
;; This file is part of GNU Emacs.
;; 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.
;; 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
;; 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.
;;; Commentary:
;; The other access methods (nntp, nnspool, etc) are general news
;; access methods. This module relies on Gnus and can not be used
;; separately.
;;; Code:
(require 'nntp)
(require 'nnheader)
(require 'gnus)
(require 'gnus-score)
(require 'nnoo)
(eval-when-compile (require 'cl))
(nnoo-declare nnkiboze)
(defvoo nnkiboze-directory gnus-directory
"nnkiboze will put its files in this directory.")
(defvoo nnkiboze-level 9
"*The maximum level to be searched for articles.")
(defvoo nnkiboze-remove-read-articles t
"*If non-nil, nnkiboze will remove read articles from the kiboze group.")
(defconst nnkiboze-version "nnkiboze 1.0"
"Version numbers of this version of nnkiboze.")
(defvoo nnkiboze-current-group nil)
(defvoo nnkiboze-current-score-group "")
(defvoo nnkiboze-status-string "")
;;; Interface functions.
(nnoo-define-basics nnkiboze)
(deffoo nnkiboze-retrieve-headers (articles &optional group server fetch-old)
(nnkiboze-possibly-change-newsgroups group)
(if gnus-nov-is-evil
nil
(if (stringp (car articles))
'headers
(let ((first (car articles))
(last (progn (while (cdr articles) (setq articles (cdr articles)))
(car articles)))
(nov (nnkiboze-nov-file-name)))
(if (file-exists-p nov)
(save-excursion
(set-buffer nntp-server-buffer)
(erase-buffer)
(insert-file-contents nov)
(goto-char (point-min))
(while (and (not (eobp)) (< first (read (current-buffer))))
(forward-line 1))
(beginning-of-line)
(if (not (eobp)) (delete-region 1 (point)))
(while (and (not (eobp)) (>= last (read (current-buffer))))
(forward-line 1))
(beginning-of-line)
(if (not (eobp)) (delete-region (point) (point-max)))
'nov))))))
(deffoo nnkiboze-open-server (newsgroups &optional something)
(gnus-make-directory nnkiboze-directory)
(nnheader-init-server-buffer))
(deffoo nnkiboze-server-opened (&optional server)
(and nntp-server-buffer
(get-buffer nntp-server-buffer)))
(deffoo nnkiboze-request-article (article &optional newsgroup server buffer)
(nnkiboze-possibly-change-newsgroups newsgroup)
(if (not (numberp article))
;; This is a real kludge. It might not work at times, but it
;; does no harm I think. The only alternative is to offer no
;; article fetching by message-id at all.
(nntp-request-article article newsgroup gnus-nntp-server buffer)
(let* ((header (gnus-summary-article-header article))
(xref (mail-header-xref header))
igroup iarticle)
(or xref (error "nnkiboze: No xref"))
(or (string-match " \\([^ ]+\\):\\([0-9]+\\)" xref)
(error "nnkiboze: Malformed xref"))
(setq igroup (substring xref (match-beginning 1) (match-end 1)))
(setq iarticle (string-to-int
(substring xref (match-beginning 2) (match-end 2))))
(and (gnus-request-group igroup t)
(gnus-request-article iarticle igroup buffer)))))
(deffoo nnkiboze-request-group (group &optional server dont-check)
"Make GROUP the current newsgroup."
(nnkiboze-possibly-change-newsgroups group)
(if dont-check
()
(let ((nov-file (nnkiboze-nov-file-name))
beg end total)
(save-excursion
(set-buffer nntp-server-buffer)
(erase-buffer)
(if (not (file-exists-p nov-file))
(insert (format "211 0 0 0 %s\n" group))
(insert-file-contents nov-file)
(if (zerop (buffer-size))
(insert (format "211 0 0 0 %s\n" group))
(goto-char (point-min))
(and (looking-at "[0-9]+") (setq beg (read (current-buffer))))
(goto-char (point-max))
(and (re-search-backward "^[0-9]" nil t)
(setq end (read (current-buffer))))
(setq total (count-lines (point-min) (point-max)))
(erase-buffer)
(insert (format "211 %d %d %d %s\n" total beg end group)))))))
t)
(deffoo nnkiboze-close-group (group &optional server)
(nnkiboze-possibly-change-newsgroups group)
;; Remove NOV lines of articles that are marked as read.
(when (and (file-exists-p (nnkiboze-nov-file-name))
nnkiboze-remove-read-articles
(eq major-mode 'gnus-summary-mode))
(save-excursion
(let ((unreads gnus-newsgroup-unreads)
(unselected gnus-newsgroup-unselected)
(version-control 'never))
(set-buffer (get-buffer-create "*nnkiboze work*"))
(buffer-disable-undo (current-buffer))
(erase-buffer)
(let ((cur (current-buffer))
article)
(insert-file-contents (nnkiboze-nov-file-name))
(goto-char (point-min))
(while (looking-at "[0-9]+")
(if (or (memq (setq article (read cur)) unreads)
(memq article unselected))
(forward-line 1)
(delete-region (progn (beginning-of-line) (point))
(progn (forward-line 1) (point)))))
(write-file (nnkiboze-nov-file-name))
(kill-buffer (current-buffer)))))
(setq nnkiboze-current-group nil)))
(deffoo nnkiboze-request-list (&optional server)
(nnheader-report 'nnkiboze "LIST is not implemented."))
(deffoo nnkiboze-request-newgroups (date &optional server)
"List new groups."
(nnheader-report 'nnkiboze "NEWGROUPS is not supported."))
(deffoo nnkiboze-request-list-newsgroups (&optional server)
(nnheader-report 'nnkiboze "LIST NEWSGROUPS is not implemented."))
(deffoo nnkiboze-request-delete-group (group &optional force server)
(nnkiboze-possibly-change-newsgroups group)
(when force
(let ((files (list (nnkiboze-nov-file-name)
(concat nnkiboze-directory group ".newsrc")
(nnkiboze-score-file group))))
(while files
(and (file-exists-p (car files))
(file-writable-p (car files))
(delete-file (car files)))
(setq files (cdr files)))))
(setq nnkiboze-current-group nil))
;;; Internal functions.
(defun nnkiboze-possibly-change-newsgroups (group)
(setq nnkiboze-current-group group))
(defun nnkiboze-prefixed-name (group)
(gnus-group-prefixed-name group '(nnkiboze "")))
;;;###autoload
(defun nnkiboze-generate-groups ()
"Usage: emacs -batch -l nnkiboze -f nnkiboze-generate-groups
Finds out what articles are to be part of the nnkiboze groups."
(interactive)
(let ((nnmail-spool-file nil)
(gnus-use-dribble-file nil)
(gnus-read-active-file t)
(gnus-expert-user t))
(gnus))
(let* ((gnus-newsrc-alist (gnus-copy-sequence gnus-newsrc-alist))
(newsrc gnus-newsrc-alist)
gnus-newsrc-hashtb)
(gnus-make-hashtable-from-newsrc-alist)
;; We have copied all the newsrc alist info over to local copies
;; so that we can mess all we want with these lists.
(while newsrc
(if (string-match "nnkiboze" (caar newsrc))
;; For each kiboze group, we call this function to generate
;; it.
(nnkiboze-generate-group (caar newsrc)))
(setq newsrc (cdr newsrc)))))
(defun nnkiboze-score-file (group)
(list (expand-file-name
(concat (file-name-as-directory gnus-kill-files-directory)
(nnheader-translate-file-chars
(concat nnkiboze-current-score-group
"." gnus-score-file-suffix))))))
(defun nnkiboze-generate-group (group)
(let* ((info (nth 2 (gnus-gethash group gnus-newsrc-hashtb)))
(newsrc-file (concat nnkiboze-directory group ".newsrc"))
(nov-file (concat nnkiboze-directory group ".nov"))
(regexp (nth 1 (nth 4 info)))
(gnus-expert-user t)
(gnus-large-newsgroup nil)
(version-control 'never)
(gnus-score-find-score-files-function 'nnkiboze-score-file)
gnus-select-group-hook gnus-summary-prepare-hook
gnus-thread-sort-functions gnus-show-threads
gnus-visual
method nnkiboze-newsrc nov-buffer gname newsrc active
ginfo lowest glevel)
(setq nnkiboze-current-score-group group)
(or info (error "No such group: %s" group))
;; Load the kiboze newsrc file for this group.
(and (file-exists-p newsrc-file) (load newsrc-file))
;; We also load the nov file for this group.
(save-excursion
(set-buffer (setq nov-buffer (find-file-noselect nov-file)))
(buffer-disable-undo (current-buffer)))
;; Go through the active hashtb and add new all groups that match the
;; kiboze regexp.
(mapatoms
(lambda (group)
(and (string-match regexp (setq gname (symbol-name group))) ; Match
(not (assoc gname nnkiboze-newsrc)) ; It isn't registered
(numberp (car (symbol-value group))) ; It is active
(or (> nnkiboze-level 7)
(and (setq glevel (nth 1 (nth 2 (gnus-gethash
gname gnus-newsrc-hashtb))))
(>= nnkiboze-level glevel)))
(not (string-match "^nnkiboze:" gname)) ; Exclude kibozes
(setq nnkiboze-newsrc
(cons (cons gname (1- (car (symbol-value group))))
nnkiboze-newsrc))))
gnus-active-hashtb)
;; `newsrc' is set to the list of groups that possibly are
;; component groups to this kiboze group. This list has elements
;; on the form `(GROUP . NUMBER)', where NUMBER is the highest
;; number that has been kibozed in GROUP in this kiboze group.
(setq newsrc nnkiboze-newsrc)
(while newsrc
(if (not (setq active (gnus-gethash
(caar newsrc) gnus-active-hashtb)))
;; This group isn't active after all, so we remove it from
;; the list of component groups.
(setq nnkiboze-newsrc (delq (car newsrc) nnkiboze-newsrc))
(setq lowest (cdar newsrc))
;; Ok, we have a valid component group, so we jump to it.
(switch-to-buffer gnus-group-buffer)
(gnus-group-jump-to-group (caar newsrc))
;; We set all list of article marks to nil. Since we operate
;; on copies of the real lists, we can destroy anything we
;; want here.
(and (setq ginfo (nth 2 (gnus-gethash (gnus-group-group-name)
gnus-newsrc-hashtb)))
(nth 3 ginfo)
(setcar (nthcdr 3 ginfo) nil))
;; We set the list of read articles to be what we expect for
;; this kiboze group -- either nil or `(1 . LOWEST)'.
(and ginfo (setcar (nthcdr 2 ginfo)
(and (not (= lowest 1)) (cons 1 lowest))))
(if (not (and (or (not ginfo)
(> (length (gnus-list-of-unread-articles
(car ginfo))) 0))
(progn
(gnus-group-select-group nil)
(eq major-mode 'gnus-summary-mode))))
() ; No unread articles, or we couldn't enter this group.
;; We are now in the group where we want to be.
(setq method (gnus-find-method-for-group gnus-newsgroup-name))
(and (eq method gnus-select-method) (setq method nil))
;; We go through the list of scored articles.
(while gnus-newsgroup-scored
(if (> (caar gnus-newsgroup-scored) lowest)
;; If it has a good score, then we enter this article
;; into the kiboze group.
(nnkiboze-enter-nov
nov-buffer
(gnus-summary-article-header
(caar gnus-newsgroup-scored))
(if method
(gnus-group-prefixed-name gnus-newsgroup-name method)
gnus-newsgroup-name)))
(setq gnus-newsgroup-scored (cdr gnus-newsgroup-scored)))
;; That's it. We exit this group.
(gnus-summary-exit-no-update)))
(setcdr (car newsrc) (car active))
(setq newsrc (cdr newsrc)))
;; We save the nov file.
(set-buffer nov-buffer)
(save-buffer)
(kill-buffer (current-buffer))
;; We save the kiboze newsrc for this group.
(set-buffer (get-buffer-create "*nnkiboze work*"))
(buffer-disable-undo (current-buffer))
(erase-buffer)
(insert "(setq nnkiboze-newsrc '" (prin1-to-string nnkiboze-newsrc)
")\n")
(write-file newsrc-file)
(kill-buffer (current-buffer))
(switch-to-buffer gnus-group-buffer)
(gnus-group-list-groups 5 nil)))
(defun nnkiboze-enter-nov (buffer header group)
(save-excursion
(set-buffer buffer)
(goto-char (point-max))
(let ((xref (mail-header-xref header))
(prefix (gnus-group-real-prefix group))
(first t)
article)
(if (zerop (forward-line -1))
(progn
(setq article (1+ (read (current-buffer))))
(forward-line 1))
(setq article 1))
(insert (int-to-string article) "\t"
(or (mail-header-subject header) "") "\t"
(or (mail-header-from header) "") "\t"
(or (mail-header-date header) "") "\t"
(or (mail-header-id header) "") "\t"
(or (mail-header-references header) "") "\t"
(int-to-string (or (mail-header-chars header) 0)) "\t"
(int-to-string (or (mail-header-lines header) 0)) "\t")
(if (or (not xref) (equal "" xref))
(insert "Xref: " (system-name) " " group ":"
(int-to-string (mail-header-number header))
"\t\n")
(insert (mail-header-xref header) "\t\n")
(search-backward "\t" nil t)
(search-backward "\t" nil t)
(while (re-search-forward
"[^ ]+:[0-9]+"
(save-excursion (end-of-line) (point)) t)
(if first
;; The first xref has to be the group this article
;; really came for - this is the article nnkiboze
;; will request when it is asked for the article.
(save-excursion
(goto-char (match-beginning 0))
(insert prefix group ":"
(int-to-string (mail-header-number header)) " ")
(setq first nil)))
(save-excursion
(goto-char (match-beginning 0))
(insert prefix)))))))
(defun nnkiboze-nov-file-name ()
(concat (file-name-as-directory nnkiboze-directory)
(nnheader-translate-file-chars
(concat (nnkiboze-prefixed-name nnkiboze-current-group) ".nov"))))
(provide 'nnkiboze)
;;; nnkiboze.el ends here
Reference in New Issue View Git Blame Copy Permalink