lisp/gnus/gnus-vm.el

   1 ;;; gnus-vm.el --- vm interface for Gnus
   2
   3 ;; Copyright (C) 1994-2018 Free Software Foundation, Inc.
   4
   5 ;; Author: Per Persson <pp@gnu.ai.mit.edu>
   6 ;; Keywords: news, mail
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software: you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation, either version 3 of the License, or
  13 ;; (at your option) any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24
  25 ;; Major contributors:
  26 ;;      Christian Limpach <Christian.Limpach@nice.ch>
  27 ;; Some code stolen from:
  28 ;;      Rick Sladkey <jrs@world.std.com>
  29
  30 ;;; Code:
  31
  32 (require 'sendmail)
  33 (require 'message)
  34 (require 'gnus)
  35 (require 'gnus-msg)
  36
  37 (defvar gnus-vm-inhibit-window-system nil
  38   "Inhibit loading `win-vm' if using a window-system.
  39 Has to be set before gnus-vm is loaded.")
  40
  41 (unless gnus-vm-inhibit-window-system
  42   (ignore-errors
  43     (when window-system
  44       (require 'win-vm))))
  45
  46 (declare-function vm-mode "ext:vm" (&optional read-only))
  47
  48 (defun gnus-vm-make-folder (&optional buffer)
  49   (require 'vm)
  50   (let ((article (or buffer (current-buffer)))
  51         (tmp-folder (generate-new-buffer " *tmp-folder*"))
  52         (start (point-min))
  53         (end (point-max)))
  54     (set-buffer tmp-folder)
  55     (insert-buffer-substring article start end)
  56     (goto-char (point-min))
  57     (if (looking-at "^\\(From [^ ]+ \\).*$")
  58         (replace-match (concat "\\1" (current-time-string)))
  59       (insert "From " gnus-newsgroup-name " "
  60               (current-time-string) "\n"))
  61     (while (re-search-forward "\n\nFrom " nil t)
  62       (replace-match "\n\n>From "))
  63     ;; insert a newline, otherwise the last line gets lost
  64     (goto-char (point-max))
  65     (insert "\n")
  66     (vm-mode)
  67     tmp-folder))
  68
  69 (defun gnus-summary-save-article-vm (&optional arg)
  70   "Append the current article to a vm folder.
  71 If N is a positive number, save the N next articles.
  72 If N is a negative number, save the N previous articles.
  73 If N is nil and any articles have been marked with the process mark,
  74 save those articles instead."
  75   (interactive "P")
  76   (require 'gnus-art)
  77   (let ((gnus-default-article-saver 'gnus-summary-save-in-vm))
  78     (gnus-summary-save-article arg)))
  79
  80 (declare-function vm-save-message "ext:vm-save" (folder &optional count))
  81
  82 (defun gnus-summary-save-in-vm (&optional folder)
  83   (interactive)
  84   (require 'vm)
  85   (setq folder
  86         (gnus-read-save-file-name
  87          "Save %s in VM folder:" folder
  88          gnus-mail-save-name gnus-newsgroup-name
  89          gnus-current-headers 'gnus-newsgroup-last-mail))
  90   (gnus-eval-in-buffer-window gnus-original-article-buffer
  91     (save-excursion
  92       (save-restriction
  93         (widen)
  94         (let ((vm-folder (gnus-vm-make-folder)))
  95           (vm-save-message folder)
  96           (kill-buffer vm-folder))))))
  97
  98 (provide 'gnus-vm)
  99
 100 ;;; gnus-vm.el ends here