Merge changes from emacs-23 branch
[emacs.git] / lisp / ledit.el
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1 ;;; ledit.el --- Emacs side of ledit interface
3 ;; Copyright (C) 1985, 2001-2011 Free Software Foundation, Inc.
5 ;; Maintainer: FSF
6 ;; Keywords: languages
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software: you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation, either version 3 of the License, or
13 ;; (at your option) any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
23 ;;; Commentary:
25 ;; This is a major mode for editing Liszt. See etc/LEDIT for details.
27 ;;; Code:
29 ;;; To do:
30 ;;; o lisp -> emacs side of things (grind-definition and find-definition)
32 (defvar ledit-mode-map nil)
34 (defconst ledit-zap-file
35 (expand-file-name (concat (user-login-name) ".l1") temporary-file-directory)
36 "File name for data sent to Lisp by Ledit.")
37 (defconst ledit-read-file
38 (expand-file-name (concat (user-login-name) ".l2") temporary-file-directory)
39 "File name for data sent to Ledit by Lisp.")
40 (defconst ledit-compile-file
41 (expand-file-name (concat (user-login-name) ".l4") temporary-file-directory)
42 "File name for data sent to Lisp compiler by Ledit.")
43 (defconst ledit-buffer "*LEDIT*"
44 "Name of buffer in which Ledit accumulates data to send to Lisp.")
46 ;;;###autoload
47 (defconst ledit-save-files t "\
48 *Non-nil means Ledit should save files before transferring to Lisp.")
49 ;;;###autoload
50 (defconst ledit-go-to-lisp-string "%?lisp" "\
51 *Shell commands to execute to resume Lisp job.")
52 ;;;###autoload
53 (defconst ledit-go-to-liszt-string "%?liszt" "\
54 *Shell commands to execute to resume Lisp compiler job.")
56 (defun ledit-save-defun ()
57 "Save the current defun in the ledit buffer."
58 (interactive)
59 (save-excursion
60 (end-of-defun)
61 (let ((end (point)))
62 (beginning-of-defun)
63 (append-to-buffer ledit-buffer (point) end))
64 (message "Current defun saved for Lisp")))
66 (defun ledit-save-region (beg end)
67 "Save the current region in the ledit buffer"
68 (interactive "r")
69 (append-to-buffer ledit-buffer beg end)
70 (message "Region saved for Lisp"))
72 (defun ledit-zap-defun-to-lisp ()
73 "Carry the current defun to Lisp."
74 (interactive)
75 (ledit-save-defun)
76 (ledit-go-to-lisp))
78 (defun ledit-zap-defun-to-liszt ()
79 "Carry the current defun to liszt."
80 (interactive)
81 (ledit-save-defun)
82 (ledit-go-to-liszt))
84 (defun ledit-zap-region-to-lisp (beg end)
85 "Carry the current region to Lisp."
86 (interactive "r")
87 (ledit-save-region beg end)
88 (ledit-go-to-lisp))
90 (defun ledit-go-to-lisp ()
91 "Suspend Emacs and restart a waiting Lisp job."
92 (interactive)
93 (if ledit-save-files
94 (save-some-buffers))
95 (if (get-buffer ledit-buffer)
96 (with-current-buffer ledit-buffer
97 (goto-char (point-min))
98 (write-region (point-min) (point-max) ledit-zap-file)
99 (erase-buffer)))
100 (suspend-emacs ledit-go-to-lisp-string)
101 (load ledit-read-file t t))
103 (defun ledit-go-to-liszt ()
104 "Suspend Emacs and restart a waiting Liszt job."
105 (interactive)
106 (if ledit-save-files
107 (save-some-buffers))
108 (if (get-buffer ledit-buffer)
109 (with-current-buffer ledit-buffer
110 (goto-char (point-min))
111 (insert "(declare (macros t))\n")
112 (write-region (point-min) (point-max) ledit-compile-file)
113 (erase-buffer)))
114 (suspend-emacs ledit-go-to-liszt-string)
115 (load ledit-read-file t t))
117 (defun ledit-setup ()
118 "Set up key bindings for the Lisp/Emacs interface."
119 (unless ledit-mode-map
120 (setq ledit-mode-map (make-sparse-keymap))
121 (set-keymap-parent ledit-mode-map lisp-mode-shared-map))
122 (define-key ledit-mode-map "\e\^d" 'ledit-save-defun)
123 (define-key ledit-mode-map "\e\^r" 'ledit-save-region)
124 (define-key ledit-mode-map "\^xz" 'ledit-go-to-lisp)
125 (define-key ledit-mode-map "\e\^c" 'ledit-go-to-liszt))
127 (ledit-setup)
129 ;;;###autoload
130 (defun ledit-mode ()
131 "\\<ledit-mode-map>Major mode for editing text and stuffing it to a Lisp job.
132 Like Lisp mode, plus these special commands:
133 \\[ledit-save-defun] -- record defun at or after point
134 for later transmission to Lisp job.
135 \\[ledit-save-region] -- record region for later transmission to Lisp job.
136 \\[ledit-go-to-lisp] -- transfer to Lisp job and transmit saved text.
137 \\[ledit-go-to-liszt] -- transfer to Liszt (Lisp compiler) job
138 and transmit saved text.
140 \\{ledit-mode-map}
141 To make Lisp mode automatically change to Ledit mode,
142 do (setq lisp-mode-hook 'ledit-from-lisp-mode)"
143 (interactive)
144 (delay-mode-hooks (lisp-mode))
145 (ledit-from-lisp-mode))
147 ;;;###autoload
148 (defun ledit-from-lisp-mode ()
149 (use-local-map ledit-mode-map)
150 (setq mode-name "Ledit")
151 (setq major-mode 'ledit-mode)
152 (run-mode-hooks 'ledit-mode-hook))
154 (provide 'ledit)
156 ;;; ledit.el ends here