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