lisp/mail/vms-pmail.el

   1 ;;; vms-pmail.el --- use Emacs as the editor within VMS mail
   2
   3 ;; Copyright (C) 1992, 2002, 2003, 2004, 2005,
   4 ;;   2006 Free Software Foundation, Inc.
   5
   6 ;; Author: Roland B Roberts <roberts@panix.com>
   7 ;; Maintainer: FSF
   8 ;; Keywords: vms
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software; you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation; either version 2, or (at your option)
  15 ;; any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  25 ;; Boston, MA 02110-1301, USA.
  26
  27 ;;; Commentary:
  28
  29 ;;; Code:
  30
  31 ;;;
  32 ;;; Quick hack to use emacs as mail editor.  There are a *bunch* of
  33 ;;; changes scattered throughout emacs to make this work, namely:
  34 ;;; (1) mod to sysdep.c to allow emacs to attach to a process other
  35 ;;;     than the one that originally spawned it.
  36 ;;; (2) mod to kepteditor.com to define the logical emacs_parent_pid
  37 ;;;     which is what sysdep.c looks for, and define the logical
  38 ;;;     emacs_command_args which contains the command line
  39 ;;; (3) mod to re-parse command line arguments from emacs_command_args
  40 ;;;     then execute them as though emacs were just starting up.
  41 ;;;
  42 (defun vms-pmail-save-and-exit ()
  43   "Save current buffer and exit emacs.
  44 If this emacs cannot be suspended, you will be prompted about modified
  45 buffers other than the mail buffer.  BEWARE --- suspending emacs without
  46 saving your mail buffer causes mail to abort the send (potentially useful
  47 since the mail buffer is still here)."
  48   (interactive)
  49   (basic-save-buffer)
  50   (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS")
  51       (progn
  52         (save-some-buffers)
  53         (kill-emacs 1))
  54     (kill-buffer (current-buffer))
  55     (suspend-emacs)))
  56
  57 (defun vms-pmail-abort ()
  58   "Mark buffer as unmodified and exit emacs.
  59 When the editor is exited without saving its buffer, VMS mail does not
  60 send a message.  If you have other modified buffers you will be
  61 prompted for what to do with them."
  62   (interactive)
  63   (if (not (yes-or-no-p "Really abort mail? "))
  64       (ding)
  65     (not-modified)
  66     (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS")
  67         (progn
  68           (save-some-buffers)
  69           (kill-emacs 1))
  70       (kill-buffer (current-buffer))
  71       (suspend-emacs))))
  72
  73 (defun vms-pmail-setup ()
  74   "Set up file assuming use by VMS MAIL utility.
  75 The buffer is put into text-mode, auto-save is turned off and the
  76 following bindings are established.
  77
  78 \\[vms-pmail-save-and-exit]     vms-pmail-save-and-exit
  79 \\[vms-pmail-abort]     vms-pmail-abort
  80
  81 All other emacs commands are still available."
  82   (interactive)
  83   (auto-save-mode -1)
  84   (text-mode)
  85   (let ((default (vms-system-info "LOGICAL" "SYS$SCRATCH"))
  86         (directory (file-name-directory (buffer-file-name)))
  87         (filename (file-name-nondirectory (buffer-file-name))))
  88     (if (string= directory "SYS$SCRATCH:")
  89         (progn
  90           (cd default)
  91           (setq buffer-file-name (concat default filename))))
  92     (use-local-map (copy-keymap (current-local-map)))
  93     (local-set-key "\C-c\C-c" 'vms-pmail-save-and-exit)
  94     (local-set-key "\C-c\C-g" 'vms-pmail-abort)))
  95
  96 (defun indicate-mail-reply-text ()
  97   "Prepares received mail for re-sending by placing >'s on each line."
  98   (interactive)
  99   (goto-char (point-min))
 100   (while (not (eobp))
 101     (insert ">")
 102     (beginning-of-line)
 103     (forward-line 1))
 104   (set-buffer-modified-p nil)
 105   (goto-char (point-min)))
 106
 107 (defun insert-signature ()
 108   "Moves to the end of the buffer and inserts a \"signature\" file.
 109 First try the file indicated by environment variable MAIL$TRAILER.
 110 If that fails, try the file \"~/.signature\".
 111 If neither file exists, fails quietly."
 112   (interactive)
 113   (end-of-buffer)
 114   (newline)
 115   (if (vms-system-info "LOGICAL" "MAIL$TRAILER")
 116       (if (file-attributes (vms-system-info "LOGICAL" "MAIL$TRAILER"))
 117           (insert-file-contents (vms-system-info "LOGICAL" "MAIL$TRAILER"))
 118         (if (file-attributes "~/.signature")
 119             (insert-file-contents "~/.signature")))))
 120
 121 (provide 'vms-pmail)
 122
 123 ;;; arch-tag: 336850fc-7812-4663-8e4d-b9c13f47dce1
 124 ;;; vms-pmail.el ends here