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1 | ;;; medit.el --- Lisp interface between GNU Emacs and MEDIT package. |
2 | ||
3 | ;; Emacs under MDL. | |
ac6d744e JB |
4 | ;; Copyright (C) 1985 Free Software Foundation, Inc. |
5 | ;; Principal author K. Shane Hartman | |
6 | ||
7 | ;; This file is part of GNU Emacs. | |
8 | ||
9 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
10 | ;; it under the terms of the GNU General Public License as published by | |
11 | ;; the Free Software Foundation; either version 1, or (at your option) | |
12 | ;; any later version. | |
13 | ||
14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | ;; GNU General Public License for more details. | |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
20 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
21 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | ||
23 | ||
24 | ;; >> This package depends on two MDL packages: MEDIT and FORKS which | |
25 | ;; >> can be obtained from the public (network) library at mit-ajax. | |
26 | ||
27 | (require 'mim-mode) | |
28 | ||
29 | (defconst medit-zap-file (concat "/tmp/" (user-login-name) ".medit.mud") | |
30 | "File name for data sent to MDL by Medit.") | |
31 | (defconst medit-buffer "*MEDIT*" | |
32 | "Name of buffer in which Medit accumulates data to send to MDL.") | |
33 | (defconst medit-save-files t | |
34 | "If non-nil, Medit offers to save files on return to MDL.") | |
35 | ||
36 | (defun medit-save-define () | |
37 | "Mark the previous or surrounding toplevel object to be sent back to MDL." | |
38 | (interactive) | |
39 | (save-excursion | |
40 | (beginning-of-DEFINE) | |
41 | (let ((start (point))) | |
42 | (forward-mim-object 1) | |
43 | (append-to-buffer medit-buffer start (point)) | |
44 | (goto-char start) | |
45 | (message (buffer-substring start (progn (end-of-line) (point))))))) | |
46 | ||
47 | (defun medit-save-region (start end) | |
48 | "Mark the current region to be sent to back to MDL." | |
49 | (interactive "r") | |
50 | (append-to-buffer medit-buffer start end) | |
51 | (message "Current region saved for MDL.")) | |
52 | ||
53 | (defun medit-save-buffer () | |
54 | "Mark the current buffer to be sent back to MDL." | |
55 | (interactive) | |
56 | (append-to-buffer medit-buffer (point-min) (point-max)) | |
57 | (message "Current buffer saved for MDL.")) | |
58 | ||
59 | (defun medit-zap-define-to-mdl () | |
60 | "Return to MDL with surrounding or previous toplevel MDL object." | |
61 | (indetarctive) | |
62 | (medit-save-defun) | |
63 | (medit-go-to-mdl)) | |
64 | ||
65 | (defun medit-zap-region-mdl (start end) | |
66 | "Return to MDL with current region." | |
67 | (interactive) | |
68 | (medit-save-region start end) | |
69 | (medit-go-to-mdl)) | |
70 | ||
71 | (defun medit-zap-buffer () | |
72 | "Return to MDL with current buffer." | |
73 | (interactive) | |
74 | (medit-save-buffer) | |
75 | (medit-go-to-mdl)) | |
76 | ||
77 | (defun medit-goto-mdl () | |
78 | "Return from Emacs to superior MDL, sending saved code. | |
79 | Optionally, offers to save changed files." | |
80 | (interactive) | |
81 | (let ((buffer (get-buffer medit-buffer))) | |
82 | (if buffer | |
83 | (save-excursion | |
84 | (set-buffer buffer) | |
85 | (if (buffer-modified-p buffer) | |
86 | (write-region (point-min) (point-max) medit-zap-file)) | |
87 | (set-buffer-modified-p nil) | |
88 | (erase-buffer))) | |
89 | (if medit-save-files (save-some-buffers)) | |
90 | ;; Note could handle parallel fork by giving argument "%xmdl". Then | |
91 | ;; mdl would have to invoke with "%emacs". | |
92 | (suspend-emacs))) | |
93 | ||
94 | (defconst medit-mode-map nil) | |
95 | (if (not medit-mode-map) | |
96 | (progn | |
97 | (setq medit-mode-map (copy-keymap mim-mode-map)) | |
98 | (define-key medit-mode-map "\e\z" 'medit-save-define) | |
99 | (define-key medit-mode-map "\e\^z" 'medit-save-buffer) | |
100 | (define-key medit-mode-map "\^xz" 'medit-goto-mdl) | |
101 | (define-key medit-mode-map "\^xs" 'medit-zap-buffer))) | |
102 | ||
103 | (defconst medit-mode-hook (and (boundp 'mim-mode-hook) mim-mode-hook) "") | |
104 | (setq mim-mode-hook '(lambda () (medit-mode))) | |
105 | ||
106 | (defun medit-mode (&optional state) | |
107 | "Major mode for editing text and returning it to a superior MDL. | |
108 | Like Mim mode, plus these special commands: | |
109 | \\{medit-mode-map}" | |
110 | (interactive) | |
111 | (use-local-map medit-mode-map) | |
112 | (run-hooks 'medit-mode-hook) | |
113 | (setq major-mode 'medit-mode) | |
114 | (setq mode-name "Medit")) | |
115 | ||
116 | (mim-mode) | |
117 | ||
6594deb0 | 118 | ;;; medit.el ends here |