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e5167999 ER |
1 | ;;; medit.el --- front-end to the MEDIT package for editing MDL |
2 | ||
3a801d0c ER |
3 | ;; Copyright (C) 1985 Free Software Foundation, Inc. |
4 | ||
e5167999 ER |
5 | ;; Author: K. Shane Hartman |
6 | ;; Maintainer: FSF | |
fd7fa35a | 7 | ;; Keywords: languages |
6594deb0 | 8 | |
ac6d744e JB |
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 | |
e5167999 | 13 | ;; the Free Software Foundation; either version 2, or (at your option) |
ac6d744e JB |
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 | |
23 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | ||
e5167999 | 25 | ;;; Commentary: |
ac6d744e JB |
26 | |
27 | ;; >> This package depends on two MDL packages: MEDIT and FORKS which | |
28 | ;; >> can be obtained from the public (network) library at mit-ajax. | |
29 | ||
e5167999 ER |
30 | ;;; Code: |
31 | ||
ac6d744e JB |
32 | (require 'mim-mode) |
33 | ||
34 | (defconst medit-zap-file (concat "/tmp/" (user-login-name) ".medit.mud") | |
35 | "File name for data sent to MDL by Medit.") | |
36 | (defconst medit-buffer "*MEDIT*" | |
37 | "Name of buffer in which Medit accumulates data to send to MDL.") | |
38 | (defconst medit-save-files t | |
39 | "If non-nil, Medit offers to save files on return to MDL.") | |
40 | ||
41 | (defun medit-save-define () | |
42 | "Mark the previous or surrounding toplevel object to be sent back to MDL." | |
43 | (interactive) | |
44 | (save-excursion | |
45 | (beginning-of-DEFINE) | |
46 | (let ((start (point))) | |
47 | (forward-mim-object 1) | |
48 | (append-to-buffer medit-buffer start (point)) | |
49 | (goto-char start) | |
50 | (message (buffer-substring start (progn (end-of-line) (point))))))) | |
51 | ||
52 | (defun medit-save-region (start end) | |
53 | "Mark the current region to be sent to back to MDL." | |
54 | (interactive "r") | |
55 | (append-to-buffer medit-buffer start end) | |
56 | (message "Current region saved for MDL.")) | |
57 | ||
58 | (defun medit-save-buffer () | |
59 | "Mark the current buffer to be sent back to MDL." | |
60 | (interactive) | |
61 | (append-to-buffer medit-buffer (point-min) (point-max)) | |
62 | (message "Current buffer saved for MDL.")) | |
63 | ||
64 | (defun medit-zap-define-to-mdl () | |
65 | "Return to MDL with surrounding or previous toplevel MDL object." | |
e8a57935 JB |
66 | (interactive) |
67 | (medit-save-define) | |
68 | (medit-goto-mdl)) | |
ac6d744e JB |
69 | |
70 | (defun medit-zap-region-mdl (start end) | |
71 | "Return to MDL with current region." | |
72 | (interactive) | |
73 | (medit-save-region start end) | |
e8a57935 | 74 | (medit-goto-mdl)) |
ac6d744e JB |
75 | |
76 | (defun medit-zap-buffer () | |
77 | "Return to MDL with current buffer." | |
78 | (interactive) | |
79 | (medit-save-buffer) | |
e8a57935 | 80 | (medit-goto-mdl)) |
ac6d744e JB |
81 | |
82 | (defun medit-goto-mdl () | |
83 | "Return from Emacs to superior MDL, sending saved code. | |
84 | Optionally, offers to save changed files." | |
85 | (interactive) | |
86 | (let ((buffer (get-buffer medit-buffer))) | |
87 | (if buffer | |
88 | (save-excursion | |
89 | (set-buffer buffer) | |
90 | (if (buffer-modified-p buffer) | |
91 | (write-region (point-min) (point-max) medit-zap-file)) | |
92 | (set-buffer-modified-p nil) | |
93 | (erase-buffer))) | |
94 | (if medit-save-files (save-some-buffers)) | |
95 | ;; Note could handle parallel fork by giving argument "%xmdl". Then | |
96 | ;; mdl would have to invoke with "%emacs". | |
97 | (suspend-emacs))) | |
98 | ||
99 | (defconst medit-mode-map nil) | |
100 | (if (not medit-mode-map) | |
101 | (progn | |
102 | (setq medit-mode-map (copy-keymap mim-mode-map)) | |
103 | (define-key medit-mode-map "\e\z" 'medit-save-define) | |
104 | (define-key medit-mode-map "\e\^z" 'medit-save-buffer) | |
105 | (define-key medit-mode-map "\^xz" 'medit-goto-mdl) | |
106 | (define-key medit-mode-map "\^xs" 'medit-zap-buffer))) | |
107 | ||
108 | (defconst medit-mode-hook (and (boundp 'mim-mode-hook) mim-mode-hook) "") | |
109 | (setq mim-mode-hook '(lambda () (medit-mode))) | |
110 | ||
111 | (defun medit-mode (&optional state) | |
112 | "Major mode for editing text and returning it to a superior MDL. | |
113 | Like Mim mode, plus these special commands: | |
114 | \\{medit-mode-map}" | |
115 | (interactive) | |
116 | (use-local-map medit-mode-map) | |
117 | (run-hooks 'medit-mode-hook) | |
118 | (setq major-mode 'medit-mode) | |
119 | (setq mode-name "Medit")) | |
120 | ||
121 | (mim-mode) | |
122 | ||
6594deb0 | 123 | ;;; medit.el ends here |