1;;; vms-pmail.el --- use Emacs as the editor within VMS mail
2
3;; Copyright (C) 1992, 2001, 2002, 2003, 2004, 2005,
4;;   2006, 2007 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.
44If this Emacs cannot be suspended, you will be prompted about modified
45buffers other than the mail buffer.  BEWARE --- suspending Emacs without
46saving your mail buffer causes mail to abort the send (potentially useful
47since 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.
59When the editor is exited without saving its buffer, VMS mail does not
60send a message.  If you have other modified buffers you will be
61prompted 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.
75The buffer is put into text-mode, auto-save is turned off and the
76following bindings are established.
77
78\\[vms-pmail-save-and-exit]	vms-pmail-save-and-exit
79\\[vms-pmail-abort]	vms-pmail-abort
80
81All 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.
109First try the file indicated by environment variable MAIL$TRAILER.
110If that fails, try the file \"~/.signature\".
111If neither file exists, fails quietly."
112  (interactive)
113  (end-of-buffer)
114  (newline)
115  (if (vms-system-info "LOGICAL" "MAIL$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
125