lisp/mail/vms-pmail.el

   1 ;;; vms-pmail.el --- use Emacs as the editor within VMS mail.
   2
   3 ;; Copyright (C) 1992 Free Software Foundation, Inc.
   4
   5 ;; Author: Roland B Roberts <roberts@nsrl31.nsrl.rochester.edu>
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; GNU Emacs is free software; you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation; either version 2, or (at your option)
  12 ;; any later version.
  13
  14 ;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs; see the file COPYING.  If not, write to
  21 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  22
  23 ;;; Code:
  24
  25 ;;;
  26 ;;; Quick hack to use emacs as mail editor.  There are a *bunch* of
  27 ;;; changes scattered throughout emacs to make this work, namely:
  28 ;;; (1) mod to sysdep.c to allow emacs to attach to a process other
  29 ;;;     than the one that originally spawned it.
  30 ;;; (2) mod to kepteditor.com to define the logical emacs_parent_pid
  31 ;;;     which is what sysdep.c looks for, and define the logical
  32 ;;;     emacs_command_args which contains the command line
  33 ;;; (3) mod to re-parse command line arguments from emacs_command_args
  34 ;;;     then execute them as though emacs were just starting up.
  35 ;;;
  36 (defun vms-pmail-save-and-exit ()
  37   "Save current buffer and exit emacs.
  38 If this emacs cannot be suspended, you will be prompted about modified
  39 buffers other than the mail buffer.  BEWARE --- suspending emacs without
  40 saving your mail buffer causes mail to abort the send (potentially useful
  41 since the mail buffer is still here)."
  42   (interactive)
  43   (basic-save-buffer)
  44   (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS")
  45       (progn
  46         (save-some-buffers)
  47         (kill-emacs 1))
  48     (kill-buffer (current-buffer))
  49     (suspend-emacs)))
  50
  51 (defun vms-pmail-abort ()
  52   "Mark buffer as unmodified and exit emacs.
  53 When the editor is exited without saving its buffer, VMS mail does not
  54 send a message.  If you have other modified buffers you will be
  55 prompted for what to do with them."
  56   (interactive)
  57   (if (not (yes-or-no-p "Really abort mail? "))
  58       (ding)
  59     (not-modified)
  60     (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS")
  61         (progn
  62           (save-some-buffers)
  63           (kill-emacs 1))
  64       (kill-buffer (current-buffer))
  65       (suspend-emacs))))
  66
  67 (defun vms-pmail-setup ()
  68   "Set up file assuming use by VMS MAIL utility.
  69 The buffer is put into text-mode, auto-save is turned off and the
  70 following bindings are established.
  71
  72 \\[vms-pmail-save-and-exit]     vms-pmail-save-and-exit
  73 \\[vms-pmail-abort]     vms-pmail-abort
  74
  75 All other emacs commands are still available."
  76   (interactive)
  77   (auto-save-mode -1)
  78   (text-mode)
  79   (let ((default (vms-system-info "LOGICAL" "SYS$SCRATCH"))
  80         (directory (file-name-directory (buffer-file-name)))
  81         (filename (file-name-nondirectory (buffer-file-name))))
  82     (if (string= directory "SYS$SCRATCH:")
  83         (progn
  84           (cd default)
  85           (setq buffer-file-name (concat default filename))))
  86     (use-local-map (copy-keymap (current-local-map)))
  87     (local-set-key "\C-c\C-c" 'vms-pmail-save-and-exit)
  88     (local-set-key "\C-c\C-g" 'vms-pmail-abort)))
  89
  90 (defun indicate-mail-reply-text ()
  91   "Prepares received mail for re-sending by placing >'s on each line."
  92   (interactive)
  93   (goto-char (point-min))
  94   (while (not (eobp))
  95     (insert ">")
  96     (beginning-of-line)
  97     (forward-line 1))
  98   (set-buffer-modified-p nil)
  99   (goto-char (point-min)))
 100
 101 (defun insert-signature ()
 102   "Moves to the end of the buffer and inserts a \"signature\" file.
 103 First try the file indicated by environment variable MAIL$TRAILER.
 104 If that fails, try the file \"~/.signature\".
 105 If neither file exists, fails quietly."
 106   (interactive)
 107   (end-of-buffer)
 108   (newline)
 109   (if (vms-system-info "LOGICAL" "MAIL$TRAILER")
 110       (if (file-attributes (vms-system-info "LOGICAL" "MAIL$TRAILER"))
 111           (insert-file-contents (vms-system-info "LOGICAL" "MAIL$TRAILER"))
 112         (if (file-attributes "~/.signature")
 113             (insert-file-contents "~/.signature")))))
 114
 115 ;;; vms-pmail.el ends here