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1.1 root 1: ;; Lisp interface between GNU Emacs and MEDIT package. Emacs under MDL.
2: ;; Copyright (C) 1985 Richard M. Stallman and K. Shane Hartman
3: ;; Bugs to shane@mit-xx (or bug-gnu-emacs@mit-prep)
4:
5: ;; This file is part of GNU Emacs.
6:
7: ;; GNU Emacs is distributed in the hope that it will be useful,
8: ;; but WITHOUT ANY WARRANTY. No author or distributor
9: ;; accepts responsibility to anyone for the consequences of using it
10: ;; or for whether it serves any particular purpose or works at all,
11: ;; unless he says so in writing. Refer to the GNU Emacs General Public
12: ;; License for full details.
13:
14: ;; Everyone is granted permission to copy, modify and redistribute
15: ;; GNU Emacs, but only under the conditions described in the
16: ;; GNU Emacs General Public License. A copy of this license is
17: ;; supposed to have been given to you along with GNU Emacs so you
18: ;; can know your rights and responsibilities. It should be in a
19: ;; file named COPYING. Among other things, the copyright notice
20: ;; and this notice must be preserved on all copies.
21:
22:
23: ;; >> This package depends on two MDL packages: MEDIT and FORKS which
24: ;; >> can be obtained from the public (network) library at mit-ajax.
25:
26: (require 'mim-mode)
27:
28: (defconst medit-zap-file (concat "/tmp/" (getenv "USER") ".medit.mud")
29: "File name for data sent to MDL by Medit.")
30: (defconst medit-buffer "*MEDIT*"
31: "Name of buffer in which Medit accumulates data to send to MDL.")
32: (defconst medit-save-files t
33: "If non-nil, Medit offers to save files on return to MDL.")
34:
35: (defun medit-save-define ()
36: "Mark the previous or surrounding toplevel object to be sent back to MDL."
37: (interactive)
38: (save-excursion
39: (beginning-of-DEFINE)
40: (let ((start (point)))
41: (forward-mim-object 1)
42: (append-to-buffer medit-buffer start (point))
43: (goto-char start)
44: (message (buffer-substring start (progn (end-of-line) (point)))))))
45:
46: (defun medit-save-region (start end)
47: "Mark the current region to be sent to back to MDL."
48: (interactive "r")
49: (append-to-buffer medit-buffer start end)
50: (message "Current region saved for MDL."))
51:
52: (defun medit-save-buffer ()
53: "Mark the current buffer to be sent back to MDL."
54: (interactive)
55: (append-to-buffer medit-buffer (point-min) (point-max))
56: (message "Current buffer saved for MDL."))
57:
58: (defun medit-zap-define-to-mdl ()
59: "Return to MDL with surrounding or previous toplevel MDL object."
60: (indetarctive)
61: (medit-save-defun)
62: (medit-go-to-mdl))
63:
64: (defun medit-zap-region-mdl (start end)
65: "Return to MDL with current region."
66: (interactive)
67: (medit-save-region start end)
68: (medit-go-to-mdl))
69:
70: (defun medit-zap-buffer ()
71: "Return to MDL with current buffer."
72: (interactive)
73: (medit-save-buffer)
74: (medit-go-to-mdl))
75:
76: (defun medit-goto-mdl ()
77: "Return from Emacs to superior MDL, sending saved code.
78: Optionally, offers to save changed files."
79: (interactive)
80: (let ((buffer (get-buffer medit-buffer)))
81: (if buffer
82: (save-excursion
83: (set-buffer buffer)
84: (if (buffer-modified-p buffer)
85: (write-region (point-min) (point-max) medit-zap-file))
86: (set-buffer-modified-p nil)
87: (erase-buffer)))
88: (if medit-save-files (save-some-buffers))
89: ;; Note could handle parallel fork by giving argument "%xmdl". Then
90: ;; mdl would have to invoke with "%emacs".
91: (suspend-emacs)))
92:
93: (defconst medit-mode-map nil)
94: (if (not medit-mode-map)
95: (progn
96: (setq medit-mode-map (copy-alist mim-mode-map))
97: (define-key medit-mode-map "\e\z" 'medit-save-define)
98: (define-key medit-mode-map "\e\^z" 'medit-save-buffer)
99: (define-key medit-mode-map "\^xz" 'medit-goto-mdl)
100: (define-key medit-mode-map "\^xs" 'medit-zap-buffer)))
101:
102: (defconst medit-mode-hook (and (boundp 'mim-mode-hook) mim-mode-hook) "")
103: (setq mim-mode-hook '(lambda () (medit-mode)))
104:
105: (defun medit-mode (&optional state)
106: "Major mode for editing text and returning it to a superior MDL.
107: Like Mim mode, plus these special commands:
108: \\{medit-mode-map}"
109: (interactive)
110: (use-local-map medit-mode-map)
111: (run-hooks 'medit-mode-hook)
112: (setq major-mode 'medit-mode)
113: (setq mode-name "Medit"))
114:
115: (mim-mode)
116:
117:
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