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 ;;; Commentary:
  27
  28 ;;; Code:
  29
  30 ;;;
  31 ;;; Quick hack to use emacs as mail editor.  There are a *bunch* of
  32 ;;; changes scattered throughout emacs to make this work, namely:
  33 ;;; (1) mod to sysdep.c to allow emacs to attach to a process other
  34 ;;;     than the one that originally spawned it.
  35 ;;; (2) mod to kepteditor.com to define the logical emacs_parent_pid
  36 ;;;     which is what sysdep.c looks for, and define the logical
  37 ;;;     emacs_command_args which contains the command line
  38 ;;; (3) mod to re-parse command line arguments from emacs_command_args
  39 ;;;     then execute them as though emacs were just starting up.
  40 ;;;
  41 (defun vms-pmail-save-and-exit ()
  42   "Save current buffer and exit emacs.
  43 If this emacs cannot be suspended, you will be prompted about modified
  44 buffers other than the mail buffer.  BEWARE --- suspending emacs without
  45 saving your mail buffer causes mail to abort the send (potentially useful
  46 since the mail buffer is still here)."
  47   (interactive)
  48   (basic-save-buffer)
  49   (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS")
  50       (progn
  51         (save-some-buffers)
  52         (kill-emacs 1))
  53     (kill-buffer (current-buffer))
  54     (suspend-emacs)))
  55
  56 (defun vms-pmail-abort ()
  57   "Mark buffer as unmodified and exit emacs.
  58 When the editor is exited without saving its buffer, VMS mail does not
  59 send a message.  If you have other modified buffers you will be
  60 prompted for what to do with them."
  61   (interactive)
  62   (if (not (yes-or-no-p "Really abort mail? "))
  63       (ding)
  64     (not-modified)
  65     (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS")
  66         (progn
  67           (save-some-buffers)
  68           (kill-emacs 1))
  69       (kill-buffer (current-buffer))
  70       (suspend-emacs))))
  71
  72 (defun vms-pmail-setup ()
  73   "Set up file assuming use by VMS MAIL utility.
  74 The buffer is put into text-mode, auto-save is turned off and the
  75 following bindings are established.
  76
  77 \\[vms-pmail-save-and-exit]     vms-pmail-save-and-exit
  78 \\[vms-pmail-abort]     vms-pmail-abort
  79
  80 All other emacs commands are still available."
  81   (interactive)
  82   (auto-save-mode -1)
  83   (text-mode)
  84   (let ((default (vms-system-info "LOGICAL" "SYS$SCRATCH"))
  85         (directory (file-name-directory (buffer-file-name)))
  86         (filename (file-name-nondirectory (buffer-file-name))))
  87     (if (string= directory "SYS$SCRATCH:")
  88         (progn
  89           (cd default)
  90           (setq buffer-file-name (concat default filename))))
  91     (use-local-map (copy-keymap (current-local-map)))
  92     (local-set-key "\C-c\C-c" 'vms-pmail-save-and-exit)
  93     (local-set-key "\C-c\C-g" 'vms-pmail-abort)))
  94
  95 (defun indicate-mail-reply-text ()
  96   "Prepares received mail for re-sending by placing >'s on each line."
  97   (interactive)
  98   (goto-char (point-min))
  99   (while (not (eobp))
 100     (insert ">")
 101     (beginning-of-line)
 102     (forward-line 1))
 103   (set-buffer-modified-p nil)
 104   (goto-char (point-min)))
 105
 106 (defun insert-signature ()
 107   "Moves to the end of the buffer and inserts a \"signature\" file.
 108 First try the file indicated by environment variable MAIL$TRAILER.
 109 If that fails, try the file \"~/.signature\".
 110 If neither file exists, fails quietly."
 111   (interactive)
 112   (end-of-buffer)
 113   (newline)
 114   (if (vms-system-info "LOGICAL" "MAIL$TRAILER")
 115       (if (file-attributes (vms-system-info "LOGICAL" "MAIL$TRAILER"))
 116           (insert-file-contents (vms-system-info "LOGICAL" "MAIL$TRAILER"))
 117         (if (file-attributes "~/.signature")
 118             (insert-file-contents "~/.signature")))))
 119
 120 (provide 'vms-pmail)
 121
 122 ;;; vms-pmail.el ends here