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 ;; Maintainer: FSF
   7 ;; Keywords: vms
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 2, or (at your option)
  14 ;; any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  24 ;; Boston, MA 02111-1307, USA.
  25
  26 ;;; Code:
  27
  28 ;;;
  29 ;;; Quick hack to use emacs as mail editor.  There are a *bunch* of
  30 ;;; changes scattered throughout emacs to make this work, namely:
  31 ;;; (1) mod to sysdep.c to allow emacs to attach to a process other
  32 ;;;     than the one that originally spawned it.
  33 ;;; (2) mod to kepteditor.com to define the logical emacs_parent_pid
  34 ;;;     which is what sysdep.c looks for, and define the logical
  35 ;;;     emacs_command_args which contains the command line
  36 ;;; (3) mod to re-parse command line arguments from emacs_command_args
  37 ;;;     then execute them as though emacs were just starting up.
  38 ;;;
  39 (defun vms-pmail-save-and-exit ()
  40   "Save current buffer and exit emacs.
  41 If this emacs cannot be suspended, you will be prompted about modified
  42 buffers other than the mail buffer.  BEWARE --- suspending emacs without
  43 saving your mail buffer causes mail to abort the send (potentially useful
  44 since the mail buffer is still here)."
  45   (interactive)
  46   (basic-save-buffer)
  47   (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS")
  48       (progn
  49         (save-some-buffers)
  50         (kill-emacs 1))
  51     (kill-buffer (current-buffer))
  52     (suspend-emacs)))
  53
  54 (defun vms-pmail-abort ()
  55   "Mark buffer as unmodified and exit emacs.
  56 When the editor is exited without saving its buffer, VMS mail does not
  57 send a message.  If you have other modified buffers you will be
  58 prompted for what to do with them."
  59   (interactive)
  60   (if (not (yes-or-no-p "Really abort mail? "))
  61       (ding)
  62     (not-modified)
  63     (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS")
  64         (progn
  65           (save-some-buffers)
  66           (kill-emacs 1))
  67       (kill-buffer (current-buffer))
  68       (suspend-emacs))))
  69
  70 (defun vms-pmail-setup ()
  71   "Set up file assuming use by VMS MAIL utility.
  72 The buffer is put into text-mode, auto-save is turned off and the
  73 following bindings are established.
  74
  75 \\[vms-pmail-save-and-exit]     vms-pmail-save-and-exit
  76 \\[vms-pmail-abort]     vms-pmail-abort
  77
  78 All other emacs commands are still available."
  79   (interactive)
  80   (auto-save-mode -1)
  81   (text-mode)
  82   (let ((default (vms-system-info "LOGICAL" "SYS$SCRATCH"))
  83         (directory (file-name-directory (buffer-file-name)))
  84         (filename (file-name-nondirectory (buffer-file-name))))
  85     (if (string= directory "SYS$SCRATCH:")
  86         (progn
  87           (cd default)
  88           (setq buffer-file-name (concat default filename))))
  89     (use-local-map (copy-keymap (current-local-map)))
  90     (local-set-key "\C-c\C-c" 'vms-pmail-save-and-exit)
  91     (local-set-key "\C-c\C-g" 'vms-pmail-abort)))
  92
  93 (defun indicate-mail-reply-text ()
  94   "Prepares received mail for re-sending by placing >'s on each line."
  95   (interactive)
  96   (goto-char (point-min))
  97   (while (not (eobp))
  98     (insert ">")
  99     (beginning-of-line)
 100     (forward-line 1))
 101   (set-buffer-modified-p nil)
 102   (goto-char (point-min)))
 103
 104 (defun insert-signature ()
 105   "Moves to the end of the buffer and inserts a \"signature\" file.
 106 First try the file indicated by environment variable MAIL$TRAILER.
 107 If that fails, try the file \"~/.signature\".
 108 If neither file exists, fails quietly."
 109   (interactive)
 110   (end-of-buffer)
 111   (newline)
 112   (if (vms-system-info "LOGICAL" "MAIL$TRAILER")
 113       (if (file-attributes (vms-system-info "LOGICAL" "MAIL$TRAILER"))
 114           (insert-file-contents (vms-system-info "LOGICAL" "MAIL$TRAILER"))
 115         (if (file-attributes "~/.signature")
 116             (insert-file-contents "~/.signature")))))
 117
 118 (provide 'vms-pmail)
 119
 120 ;;; vms-pmail.el ends here