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@panix.com>
   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 the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Code:
  26
  27 ;;;
  28 ;;; Quick hack to use emacs as mail editor.  There are a *bunch* of
  29 ;;; changes scattered throughout emacs to make this work, namely:
  30 ;;; (1) mod to sysdep.c to allow emacs to attach to a process other
  31 ;;;     than the one that originally spawned it.
  32 ;;; (2) mod to kepteditor.com to define the logical emacs_parent_pid
  33 ;;;     which is what sysdep.c looks for, and define the logical
  34 ;;;     emacs_command_args which contains the command line
  35 ;;; (3) mod to re-parse command line arguments from emacs_command_args
  36 ;;;     then execute them as though emacs were just starting up.
  37 ;;;
  38 (defun vms-pmail-save-and-exit ()
  39   "Save current buffer and exit emacs.
  40 If this emacs cannot be suspended, you will be prompted about modified
  41 buffers other than the mail buffer.  BEWARE --- suspending emacs without
  42 saving your mail buffer causes mail to abort the send (potentially useful
  43 since the mail buffer is still here)."
  44   (interactive)
  45   (basic-save-buffer)
  46   (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS")
  47       (progn
  48         (save-some-buffers)
  49         (kill-emacs 1))
  50     (kill-buffer (current-buffer))
  51     (suspend-emacs)))
  52
  53 (defun vms-pmail-abort ()
  54   "Mark buffer as unmodified and exit emacs.
  55 When the editor is exited without saving its buffer, VMS mail does not
  56 send a message.  If you have other modified buffers you will be
  57 prompted for what to do with them."
  58   (interactive)
  59   (if (not (yes-or-no-p "Really abort mail? "))
  60       (ding)
  61     (not-modified)
  62     (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS")
  63         (progn
  64           (save-some-buffers)
  65           (kill-emacs 1))
  66       (kill-buffer (current-buffer))
  67       (suspend-emacs))))
  68
  69 (defun vms-pmail-setup ()
  70   "Set up file assuming use by VMS MAIL utility.
  71 The buffer is put into text-mode, auto-save is turned off and the
  72 following bindings are established.
  73
  74 \\[vms-pmail-save-and-exit]     vms-pmail-save-and-exit
  75 \\[vms-pmail-abort]     vms-pmail-abort
  76
  77 All other emacs commands are still available."
  78   (interactive)
  79   (auto-save-mode -1)
  80   (text-mode)
  81   (let ((default (vms-system-info "LOGICAL" "SYS$SCRATCH"))
  82         (directory (file-name-directory (buffer-file-name)))
  83         (filename (file-name-nondirectory (buffer-file-name))))
  84     (if (string= directory "SYS$SCRATCH:")
  85         (progn
  86           (cd default)
  87           (setq buffer-file-name (concat default filename))))
  88     (use-local-map (copy-keymap (current-local-map)))
  89     (local-set-key "\C-c\C-c" 'vms-pmail-save-and-exit)
  90     (local-set-key "\C-c\C-g" 'vms-pmail-abort)))
  91
  92 (defun indicate-mail-reply-text ()
  93   "Prepares received mail for re-sending by placing >'s on each line."
  94   (interactive)
  95   (goto-char (point-min))
  96   (while (not (eobp))
  97     (insert ">")
  98     (beginning-of-line)
  99     (forward-line 1))
 100   (set-buffer-modified-p nil)
 101   (goto-char (point-min)))
 102
 103 (defun insert-signature ()
 104   "Moves to the end of the buffer and inserts a \"signature\" file.
 105 First try the file indicated by environment variable MAIL$TRAILER.
 106 If that fails, try the file \"~/.signature\".
 107 If neither file exists, fails quietly."
 108   (interactive)
 109   (end-of-buffer)
 110   (newline)
 111   (if (vms-system-info "LOGICAL" "MAIL$TRAILER")
 112       (if (file-attributes (vms-system-info "LOGICAL" "MAIL$TRAILER"))
 113           (insert-file-contents (vms-system-info "LOGICAL" "MAIL$TRAILER"))
 114         (if (file-attributes "~/.signature")
 115             (insert-file-contents "~/.signature")))))
 116
 117 (provide 'vms-pmail)
 118
 119 ;;; vms-pmail.el ends here