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ad8dacae PJ |
1 | ;;; mlsupport.el --- run-time support for mocklisp code |
2 | ||
f2e3589a | 3 | ;; Copyright (C) 1985, 2001, 2002, 2003, 2004, 2005, |
2f043267 | 4 | ;; 2006, 2007, 2008 Free Software Foundation, Inc. |
ad8dacae PJ |
5 | |
6 | ;; Maintainer: FSF | |
7 | ;; Keywords: extensions | |
8 | ||
9 | ;; This file is part of GNU Emacs. | |
10 | ||
4936186e | 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
ad8dacae | 12 | ;; it under the terms of the GNU General Public License as published by |
4936186e GM |
13 | ;; the Free Software Foundation, either version 3 of the License, or |
14 | ;; (at your option) any later version. | |
ad8dacae PJ |
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 | |
4936186e | 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
ad8dacae PJ |
23 | |
24 | ;;; Commentary: | |
25 | ||
e94a9773 GM |
26 | ;; This file has been obsolete since Emacs 22.1. |
27 | ||
ad8dacae PJ |
28 | ;; This package provides equivalents of certain primitives from Gosling |
29 | ;; Emacs (including the commercial UniPress versions). These have an | |
30 | ;; ml- prefix to distinguish them from native GNU Emacs functions with | |
31 | ;; similar names. The package mlconvert.el translates Mocklisp code | |
32 | ;; to use these names. | |
33 | ||
34 | ;;; Code: | |
35 | ||
36 | (defmacro ml-defun (&rest defs) | |
37 | (list 'ml-defun-1 (list 'quote defs))) | |
38 | ||
39 | (defun ml-defun-1 (args) | |
40 | (while args | |
41 | (fset (car (car args)) (cons 'mocklisp (cdr (car args)))) | |
42 | (setq args (cdr args)))) | |
43 | ||
44 | (defmacro declare-buffer-specific (&rest vars) | |
45 | (cons 'progn (mapcar (function (lambda (var) (list 'make-variable-buffer-local (list 'quote var)))) vars))) | |
46 | ||
47 | (defun ml-set-default (varname value) | |
48 | (set-default (intern varname) value)) | |
49 | ||
50 | ; Lossage: must make various things default missing args to the prefix arg | |
51 | ; Alternatively, must make provide-prefix-argument do something hairy. | |
52 | ||
53 | (defun >> (val count) (lsh val (- count))) | |
54 | (defun novalue () nil) | |
55 | ||
56 | (defun ml-not (arg) (if (zerop arg) 1 0)) | |
57 | ||
58 | (defun provide-prefix-arg (arg form) | |
59 | (funcall (car form) arg)) | |
60 | ||
61 | (defun define-keymap (name) | |
62 | (fset (intern name) (make-keymap))) | |
63 | ||
64 | ;; Make it work to use ml-use-...-map on "esc" and such. | |
65 | (fset 'esc-map esc-map) | |
66 | (fset 'ctl-x-map ctl-x-map) | |
67 | ||
68 | (defun ml-use-local-map (name) | |
69 | (use-local-map (intern (concat name "-map")))) | |
70 | ||
71 | (defun ml-use-global-map (name) | |
72 | (use-global-map (intern (concat name "-map")))) | |
73 | ||
74 | (defun local-bind-to-key (name key) | |
75 | (or (current-local-map) | |
76 | (use-local-map (make-keymap))) | |
77 | (define-key (current-local-map) | |
78 | (if (integerp key) | |
79 | (if (>= key 128) | |
80 | (concat (char-to-string meta-prefix-char) | |
81 | (char-to-string (- key 128))) | |
82 | (char-to-string key)) | |
83 | key) | |
84 | (intern name))) | |
85 | ||
86 | (defun bind-to-key (name key) | |
87 | (define-key global-map (if (integerp key) (char-to-string key) key) | |
88 | (intern name))) | |
89 | ||
90 | (defun ml-autoload (name file) | |
91 | (autoload (intern name) file)) | |
92 | ||
93 | (defun ml-define-string-macro (name defn) | |
94 | (fset (intern name) defn)) | |
95 | ||
96 | (defun push-back-character (char) | |
97 | (setq unread-command-events (list char))) | |
98 | ||
99 | (defun to-col (column) | |
100 | (indent-to column 0)) | |
101 | ||
102 | (defmacro is-bound (&rest syms) | |
103 | (cons 'and (mapcar (function (lambda (sym) (list 'boundp (list 'quote sym)))) syms))) | |
104 | ||
105 | (defmacro declare-global (&rest syms) | |
106 | (cons 'progn (mapcar (function (lambda (sym) (list 'defvar sym nil))) syms))) | |
107 | ||
108 | (defmacro error-occurred (&rest body) | |
109 | (list 'condition-case nil (cons 'progn (append body '(nil))) '(error t))) | |
110 | ||
111 | (defun return-prefix-argument (value) | |
112 | (setq prefix-arg value)) | |
113 | ||
114 | (defun ml-prefix-argument () | |
115 | (if (null current-prefix-arg) 1 | |
116 | (if (listp current-prefix-arg) (car current-prefix-arg) | |
117 | (if (eq current-prefix-arg '-) -1 | |
118 | current-prefix-arg)))) | |
119 | ||
120 | (defun ml-print (varname) | |
121 | (interactive "vPrint variable: ") | |
122 | (if (boundp varname) | |
123 | (message "%s => %s" (symbol-name varname) (symbol-value varname)) | |
124 | (message "%s has no value" (symbol-name varname)))) | |
125 | ||
126 | (defun ml-set (str val) (set (intern str) val)) | |
127 | ||
128 | (defun ml-message (&rest args) (message "%s" (apply 'concat args))) | |
129 | ||
ad8dacae PJ |
130 | (defun set-auto-fill-hook (arg) |
131 | (setq auto-fill-function (intern arg))) | |
132 | ||
133 | (defun auto-execute (function pattern) | |
134 | (if (/= (aref pattern 0) ?*) | |
135 | (error "Only patterns starting with * supported in auto-execute")) | |
136 | (setq auto-mode-alist (cons (cons (concat "\\." (substring pattern 1) | |
137 | "\\'") | |
138 | function) | |
139 | auto-mode-alist))) | |
140 | ||
141 | (defun move-to-comment-column () | |
142 | (indent-to comment-column)) | |
143 | ||
144 | (defun erase-region () | |
145 | (delete-region (point) (mark))) | |
146 | ||
147 | (defun delete-region-to-buffer (bufname) | |
148 | (copy-to-buffer bufname (point) (mark)) | |
149 | (delete-region (point) (mark))) | |
150 | ||
151 | (defun copy-region-to-buffer (bufname) | |
152 | (copy-to-buffer bufname (point) (mark))) | |
153 | ||
154 | (defun append-region-to-buffer (bufname) | |
155 | (append-to-buffer bufname (point) (mark))) | |
156 | ||
157 | (defun prepend-region-to-buffer (bufname) | |
158 | (prepend-to-buffer bufname (point) (mark))) | |
159 | ||
160 | (defun delete-next-character () | |
161 | (delete-char (ml-prefix-argument))) | |
162 | ||
163 | (defun delete-next-word () | |
164 | (delete-region (point) (progn (forward-word (ml-prefix-argument)) (point)))) | |
165 | ||
166 | (defun delete-previous-word () | |
167 | (delete-region (point) (progn (backward-word (ml-prefix-argument)) (point)))) | |
168 | ||
169 | (defun delete-previous-character () | |
170 | (delete-backward-char (ml-prefix-argument))) | |
171 | ||
172 | (defun forward-character () | |
173 | (forward-char (ml-prefix-argument))) | |
174 | ||
175 | (defun backward-character () | |
176 | (backward-char (ml-prefix-argument))) | |
177 | ||
178 | (defun ml-newline () | |
179 | (newline (ml-prefix-argument))) | |
180 | ||
181 | (defun ml-next-line () | |
7caf6803 | 182 | (forward-line (ml-prefix-argument))) |
ad8dacae PJ |
183 | |
184 | (defun ml-previous-line () | |
7caf6803 | 185 | (forward-line (- (ml-prefix-argument)))) |
ad8dacae PJ |
186 | |
187 | (defun delete-to-kill-buffer () | |
188 | (kill-region (point) (mark))) | |
189 | ||
190 | (defun narrow-region () | |
191 | (narrow-to-region (point) (mark))) | |
192 | ||
193 | (defun ml-newline-and-indent () | |
194 | (let ((column (current-indentation))) | |
195 | (newline (ml-prefix-argument)) | |
196 | (indent-to column))) | |
197 | ||
198 | (defun newline-and-backup () | |
199 | (open-line (ml-prefix-argument))) | |
200 | ||
201 | (defun quote-char () | |
202 | (quoted-insert (ml-prefix-argument))) | |
203 | ||
204 | (defun ml-current-column () | |
205 | (1+ (current-column))) | |
206 | ||
207 | (defun ml-current-indent () | |
208 | (1+ (current-indentation))) | |
209 | ||
210 | (defun region-around-match (&optional n) | |
211 | (set-mark (match-beginning n)) | |
212 | (goto-char (match-end n))) | |
213 | ||
214 | (defun region-to-string () | |
215 | (buffer-substring (min (point) (mark)) (max (point) (mark)))) | |
216 | ||
217 | (defun use-abbrev-table (name) | |
218 | (let ((symbol (intern (concat name "-abbrev-table")))) | |
219 | (or (boundp symbol) | |
220 | (define-abbrev-table symbol nil)) | |
221 | (symbol-value symbol))) | |
222 | ||
223 | (defun define-hooked-local-abbrev (name exp hook) | |
224 | (define-abbrev local-abbrev-table name exp (intern hook))) | |
225 | ||
226 | (defun define-hooked-global-abbrev (name exp hook) | |
227 | (define-abbrev global-abbrev-table name exp (intern hook))) | |
228 | ||
229 | (defun case-word-lower () | |
230 | (ml-casify-word 'downcase-region)) | |
231 | ||
232 | (defun case-word-upper () | |
233 | (ml-casify-word 'upcase-region)) | |
234 | ||
235 | (defun case-word-capitalize () | |
236 | (ml-casify-word 'capitalize-region)) | |
237 | ||
238 | (defun ml-casify-word (fun) | |
239 | (save-excursion | |
240 | (forward-char 1) | |
241 | (forward-word -1) | |
242 | (funcall fun (point) | |
243 | (progn (forward-word (ml-prefix-argument)) | |
244 | (point))))) | |
245 | ||
246 | (defun case-region-lower () | |
247 | (downcase-region (point) (mark))) | |
248 | ||
249 | (defun case-region-upper () | |
250 | (upcase-region (point) (mark))) | |
251 | ||
252 | (defun case-region-capitalize () | |
253 | (capitalize-region (point) (mark))) | |
254 | \f | |
255 | (defvar saved-command-line-args nil) | |
256 | ||
257 | (defun argc () | |
258 | (or saved-command-line-args | |
259 | (setq saved-command-line-args command-line-args | |
260 | command-line-args ())) | |
261 | (length command-line-args)) | |
262 | ||
263 | (defun argv (i) | |
264 | (or saved-command-line-args | |
265 | (setq saved-command-line-args command-line-args | |
266 | command-line-args ())) | |
267 | (nth i saved-command-line-args)) | |
268 | ||
269 | (defun invisible-argc () | |
270 | (length (or saved-command-line-args | |
271 | command-line-args))) | |
272 | ||
273 | (defun invisible-argv (i) | |
274 | (nth i (or saved-command-line-args | |
275 | command-line-args))) | |
276 | ||
277 | (defun exit-emacs () | |
278 | (interactive) | |
279 | (condition-case () | |
280 | (exit-recursive-edit) | |
281 | (error (kill-emacs)))) | |
282 | \f | |
283 | ;; Lisp function buffer-size returns total including invisible; | |
284 | ;; mocklisp wants just visible. | |
285 | (defun ml-buffer-size () | |
286 | (- (point-max) (point-min))) | |
287 | ||
288 | (defun previous-command () | |
289 | last-command) | |
290 | ||
291 | (defun beginning-of-window () | |
292 | (goto-char (window-start))) | |
293 | ||
294 | (defun end-of-window () | |
295 | (goto-char (window-start)) | |
296 | (vertical-motion (- (window-height) 2))) | |
297 | \f | |
298 | (defun ml-search-forward (string) | |
299 | (search-forward string nil nil (ml-prefix-argument))) | |
300 | ||
301 | (defun ml-re-search-forward (string) | |
302 | (re-search-forward string nil nil (ml-prefix-argument))) | |
303 | ||
304 | (defun ml-search-backward (string) | |
305 | (search-backward string nil nil (ml-prefix-argument))) | |
306 | ||
307 | (defun ml-re-search-backward (string) | |
308 | (re-search-backward string nil nil (ml-prefix-argument))) | |
309 | ||
310 | (defvar use-users-shell 1 | |
311 | "Mocklisp compatibility variable; 1 means use shell from SHELL env var. | |
312 | 0 means use /bin/sh.") | |
313 | ||
314 | (defvar use-csh-option-f 1 | |
315 | "Mocklisp compatibility variable; 1 means pass -f when calling csh.") | |
316 | ||
317 | (defun filter-region (command) | |
05470ac8 JB |
318 | (let* ((shell (if (/= use-users-shell 0) shell-file-name "/bin/sh")) |
319 | (csh (equal (file-name-nondirectory shell) "csh"))) | |
ad8dacae PJ |
320 | (call-process-region (point) (mark) shell t t nil |
321 | (if (and csh use-csh-option-f) "-cf" "-c") | |
322 | (concat "exec " command)))) | |
323 | ||
324 | (defun execute-monitor-command (command) | |
05470ac8 JB |
325 | (let* ((shell (if (/= use-users-shell 0) shell-file-name "/bin/sh")) |
326 | (csh (equal (file-name-nondirectory shell) "csh"))) | |
ad8dacae PJ |
327 | (call-process shell nil t t |
328 | (if (and csh use-csh-option-f) "-cf" "-c") | |
329 | (concat "exec " command)))) | |
330 | \f | |
331 | (defun use-syntax-table (name) | |
332 | (set-syntax-table (symbol-value (intern (concat name "-syntax-table"))))) | |
333 | ||
334 | (defun line-to-top-of-window () | |
335 | (recenter (1- (ml-prefix-argument)))) | |
336 | ||
337 | (defun ml-previous-page (&optional arg) | |
338 | (let ((count (or arg (ml-prefix-argument)))) | |
339 | (while (> count 0) | |
340 | (scroll-down nil) | |
341 | (setq count (1- count))) | |
342 | (while (< count 0) | |
343 | (scroll-up nil) | |
344 | (setq count (1+ count))))) | |
345 | ||
346 | (defun ml-next-page () | |
2b54af74 | 347 | (ml-previous-page (- (ml-prefix-argument)))) |
ad8dacae PJ |
348 | |
349 | (defun page-next-window (&optional arg) | |
350 | (let ((count (or arg (ml-prefix-argument)))) | |
351 | (while (> count 0) | |
352 | (scroll-other-window nil) | |
353 | (setq count (1- count))) | |
354 | (while (< count 0) | |
355 | (scroll-other-window '-) | |
356 | (setq count (1+ count))))) | |
357 | ||
358 | (defun ml-next-window () | |
359 | (select-window (next-window))) | |
360 | ||
361 | (defun ml-previous-window () | |
362 | (select-window (previous-window))) | |
363 | ||
364 | (defun scroll-one-line-up () | |
365 | (scroll-up (ml-prefix-argument))) | |
366 | ||
367 | (defun scroll-one-line-down () | |
368 | (scroll-down (ml-prefix-argument))) | |
369 | ||
370 | (defun split-current-window () | |
371 | (split-window (selected-window))) | |
372 | ||
373 | (defun last-key-struck () last-command-char) | |
374 | ||
375 | (defun execute-mlisp-line (string) | |
376 | (eval (read string))) | |
377 | ||
378 | (defun move-dot-to-x-y (x y) | |
379 | (goto-char (window-start (selected-window))) | |
380 | (vertical-motion (1- y)) | |
381 | (move-to-column (1- x))) | |
382 | ||
383 | (defun ml-modify-syntax-entry (string) | |
384 | (let ((i 5) | |
385 | (len (length string)) | |
386 | (datastring (substring string 0 2))) | |
387 | (if (= (aref string 0) ?\-) | |
388 | (aset datastring 0 ?\ )) | |
389 | (if (= (aref string 2) ?\{) | |
390 | (if (= (aref string 4) ?\ ) | |
391 | (aset datastring 0 ?\<) | |
392 | (error "Two-char comment delimiter: use modify-syntax-entry directly"))) | |
393 | (if (= (aref string 3) ?\}) | |
394 | (if (= (aref string 4) ?\ ) | |
395 | (aset datastring 0 ?\>) | |
396 | (error "Two-char comment delimiter: use modify-syntax-entry directly"))) | |
397 | (while (< i len) | |
398 | (modify-syntax-entry (aref string i) datastring) | |
399 | (setq i (1+ i)) | |
400 | (if (and (< i len) | |
401 | (= (aref string i) ?\-)) | |
402 | (let ((c (aref string (1- i))) | |
403 | (lim (aref string (1+ i)))) | |
404 | (while (<= c lim) | |
405 | (modify-syntax-entry c datastring) | |
406 | (setq c (1+ c))) | |
407 | (setq i (+ 2 i))))))) | |
408 | \f | |
409 | ||
410 | ||
411 | (defun ml-substr (string from to) | |
412 | (let ((length (length string))) | |
413 | (if (< from 0) (setq from (+ from length))) | |
414 | (if (< to 0) (setq to (+ to length))) | |
415 | (substring string from (+ from to)))) | |
416 | ||
417 | (defun ml-concat (&rest args) | |
418 | (let ((newargs nil) this) | |
419 | (while args | |
420 | (setq this (car args)) | |
421 | (if (numberp this) | |
422 | (setq this (number-to-string this))) | |
423 | (setq newargs (cons this newargs) | |
424 | args (cdr args))) | |
425 | (apply 'concat (nreverse newargs)))) | |
426 | ||
427 | (provide 'mlsupport) | |
428 | ||
cbee283d | 429 | ;; arch-tag: b0ad09bc-8cb2-4be0-8888-2e874839bcbc |
ad8dacae | 430 | ;;; mlsupport.el ends here |