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1.1 root 1: ;; Run-time support for mocklisp code.
2: ;; Copyright (C) 1985 Richard M. Stallman.
3:
4: ;; This file is part of GNU Emacs.
5:
6: ;; GNU Emacs is distributed in the hope that it will be useful,
7: ;; but WITHOUT ANY WARRANTY. No author or distributor
8: ;; accepts responsibility to anyone for the consequences of using it
9: ;; or for whether it serves any particular purpose or works at all,
10: ;; unless he says so in writing. Refer to the GNU Emacs General Public
11: ;; License for full details.
12:
13: ;; Everyone is granted permission to copy, modify and redistribute
14: ;; GNU Emacs, but only under the conditions described in the
15: ;; GNU Emacs General Public License. A copy of this license is
16: ;; supposed to have been given to you along with GNU Emacs so you
17: ;; can know your rights and responsibilities. It should be in a
18: ;; file named COPYING. Among other things, the copyright notice
19: ;; and this notice must be preserved on all copies.
20:
21:
22: (provide 'mlsupport)
23:
24: (defmacro ml-defun (&rest defs)
25: (list 'ml-defun-1 (list 'quote defs)))
26:
27: (defun ml-defun-1 (args)
28: (while args
29: (fset (car (car args)) (cons 'mocklisp (cdr (car args))))
30: (setq args (cdr args))))
31:
32: (defmacro declare-buffer-specific (&rest vars)
33: (cons 'progn (mapcar (function (lambda (var) (list 'make-variable-buffer-local (list 'quote var)))) vars)))
34:
35: (defmacro setq-default (var val)
36: (list 'set-default (list 'quote var) val))
37:
38: (defun ml-set-default (varname value)
39: (set-default (intern varname) value))
40:
41: ; Lossage: must make various things default missing args to the prefix arg
42: ; Alternatively, must make provide-prefix-argument do something hairy.
43:
44: (defun >> (val count) (lsh val (- count)))
45: (defun novalue () nil)
46:
47: (defun provide-prefix-arg (arg form)
48: (funcall (car form) arg))
49:
50: (defun define-keymap (name)
51: (fset (intern name) (make-keymap)))
52:
53: (defun ml-use-local-map (name)
54: (use-local-map (intern (concat name "-map"))))
55:
56: (defun ml-use-global-map (name)
57: (use-global-map (intern (concat name "-map"))))
58:
59: (defun local-bind-to-key (name key)
60: (or (current-local-map)
61: (use-local-map (make-keymap)))
62: (define-key (current-local-map)
63: (if (integerp key)
64: (if (>= key 128)
65: (concat (char-to-string meta-prefix-char)
66: (char-to-string (- key 128)))
67: (char-to-string key))
68: key)
69: (intern name)))
70:
71: (defun bind-to-key (name key)
72: (define-key global-map (if (integerp key) (char-to-string key) key)
73: (intern name)))
74:
75: (defun ml-autoload (name file)
76: (autoload (intern name) file))
77:
78: (defun ml-define-string-macro (name defn)
79: (fset (intern name) defn))
80:
81: (defun push-back-character (char)
82: (setq unread-command-char char))
83:
84: (defun to-col (column)
85: (indent-to column 0))
86:
87: (defmacro is-bound (&rest syms)
88: (cons 'and (mapcar (function (lambda (sym) (list 'boundp (list 'quote sym)))) syms)))
89:
90: (defmacro declare-global (&rest syms)
91: (cons 'progn (mapcar (function (lambda (sym) (list 'defvar sym nil))) syms)))
92:
93: (defmacro error-occurred (&rest body)
94: (list 'condition-case nil (cons 'progn (append body '(nil))) '(error t)))
95:
96: (defun return-prefix-argument (value)
97: (setq prefix-arg value))
98:
99: (defun ml-prefix-argument ()
100: (if (null current-prefix-arg) 1
101: (if (listp current-prefix-arg) (car current-prefix-arg)
102: (if (eq current-prefix-arg '-) -1
103: current-prefix-arg))))
104:
105: (defun ml-print (varname)
106: (interactive "vPrint variable: ")
107: (if (boundp varname)
108: (message "%s => %s" (symbol-name varname) (symbol-value varname))
109: (message "%s has no value" (symbol-name varname))))
110:
111: (defun ml-set (str val) (set (intern str) val))
112:
113: (defun ml-message (&rest args) (message "%s" (apply 'concat args)))
114:
115: (defun kill-to-end-of-line ()
116: (ml-prefix-argument-loop
117: (if (eolp)
118: (kill-region (point) (1+ (point)))
119: (kill-region (point) (if (search-forward ?\n nil t)
120: (1- (point)) (point-max))))))
121:
122: (defun set-auto-fill-hook (arg)
123: (setq auto-fill-hook (intern arg)))
124:
125: (defun auto-execute (function pattern)
126: (if (/= (aref pattern 0) ?*)
127: (error "Only patterns starting with * supported in auto-execute"))
128: (setq auto-mode-alist
129: (cons (cons (substring pattern 1) function)
130: auto-mode-alist)))
131:
132: (defun move-to-comment-column ()
133: (indent-to comment-column))
134:
135: (defun erase-region ()
136: (delete-region (point) (mark)))
137:
138: (defun delete-region-to-buffer (bufname)
139: (copy-to-buffer bufname (point) (mark))
140: (delete-region (point) (mark)))
141:
142: (defun copy-region-to-buffer (bufname)
143: (copy-to-buffer bufname (point) (mark)))
144:
145: (defun append-region-to-buffer (bufname)
146: (append-to-buffer bufname (point) (mark)))
147:
148: (defun prepend-region-to-buffer (bufname)
149: (prepend-to-buffer bufname (point) (mark)))
150:
151: (defun delete-next-character ()
152: (delete-char (ml-prefix-argument)))
153:
154: (defun delete-next-word ()
155: (delete-region (point) (progn (forward-word (ml-prefix-argument)) (point))))
156:
157: (defun delete-previous-word ()
158: (delete-region (point) (progn (backward-word (ml-prefix-argument)) (point))))
159:
160: (defun delete-previous-character ()
161: (delete-backward-char (ml-prefix-argument)))
162:
163: (defun forward-character ()
164: (forward-char (ml-prefix-argument)))
165:
166: (defun backward-character ()
167: (backward-char (ml-prefix-argument)))
168:
169: (defun ml-newline ()
170: (newline (ml-prefix-argument)))
171:
172: (defun ml-next-line ()
173: (next-line (ml-prefix-argument)))
174:
175: (defun ml-previous-line ()
176: (previous-line (ml-prefix-argument)))
177:
178: (defun delete-to-kill-buffer ()
179: (kill-region (point) (mark)))
180:
181: (defun narrow-region ()
182: (narrow-to-region (point) (mark)))
183:
184: (defun ml-newline-and-indent ()
185: (let ((column (current-indentation)))
186: (newline (ml-prefix-argument))
187: (indent-to column)))
188:
189: (defun newline-and-backup ()
190: (open-line (ml-prefix-argument)))
191:
192: (defun quote-char ()
193: (quoted-insert (ml-prefix-argument)))
194:
195: (defun ml-current-column ()
196: (1+ (current-column)))
197:
198: (defun ml-current-indent ()
199: (1+ (current-indentation)))
200:
201: (defun region-around-match (&optional n)
202: (set-mark (match-beginning n))
203: (goto-char (match-end n)))
204:
205: (defun region-to-string ()
206: (buffer-substring (min (point) (mark)) (max (point) (mark))))
207:
208: (defun use-abbrev-table (name)
209: (let ((symbol (intern (concat name "-abbrev-table"))))
210: (or (boundp symbol)
211: (define-abbrev-table symbol nil))
212: (symbol-value symbol)))
213:
214: (defun define-hooked-local-abbrev (name exp hook)
215: (define-local-abbrev name exp (intern hook)))
216:
217: (defun define-hooked-global-abbrev (name exp hook)
218: (define-global-abbrev name exp (intern hook)))
219:
220: (defun case-word-lower ()
221: (ml-casify-word 'downcase-region))
222:
223: (defun case-word-upper ()
224: (ml-casify-word 'upcase-region))
225:
226: (defun case-word-capitalize ()
227: (ml-casify-word 'capitalize-region))
228:
229: (defun ml-casify-word (fun)
230: (save-excursion
231: (forward-char 1)
232: (forward-word -1)
233: (funcall fun (point)
234: (progn (forward-word (ml-prefix-argument))
235: (point)))))
236:
237: (defun case-region-lower ()
238: (downcase-region (point) (mark)))
239:
240: (defun case-region-upper ()
241: (upcase-region (point) (mark)))
242:
243: (defun case-region-capitalize ()
244: (capitalize-region (point) (mark)))
245:
246: (defun argc ()
247: (setq inhibit-command-line t)
248: (length command-line-args))
249:
250: (defun argv (i)
251: (setq inhibit-command-line t)
252: (nth i command-line-args))
253:
254: (defun invisible-argc ()
255: (length command-line-args))
256:
257: (defun invisible-argv (i)
258: (nth i command-line-args))
259:
260: (defun exit-emacs ()
261: (interactive)
262: (condition-case ()
263: (exit-recursive-edit)
264: (error (kill-emacs))))
265:
266: ;; Lisp function buffer-size returns total including invisible;
267: ;; mocklisp wants just visible.
268: (defun ml-buffer-size ()
269: (- (point-max) (point-min)))
270:
271: (defun previous-command ()
272: last-command)
273:
274: (defun beginning-of-window ()
275: (goto-char (window-start)))
276:
277: (defun end-of-window ()
278: (goto-char (window-start))
279: (vertical-motion (- (window-height) 2)))
280:
281: (defun ml-search-forward (string)
282: (search-forward string nil nil (ml-prefix-argument)))
283:
284: (defun ml-re-search-forward (string)
285: (re-search-forward string nil nil (ml-prefix-argument)))
286:
287: (defun ml-search-backward (string)
288: (search-backward string nil nil (ml-prefix-argument)))
289:
290: (defun ml-re-search-backward (string)
291: (re-search-backward string nil nil (ml-prefix-argument)))
292:
293: (defvar use-users-shell 1
294: "Mocklisp compatibility variable; 1 means use shell from SHELL env var.
295: 0 means use /bin/sh.")
296:
297: (defvar use-csh-option-f 1
298: "Mocklisp compatibility variable; 1 means pass -f when calling csh.")
299:
300: (defun filter-region (command)
301: (let ((shell (if (/= use-users-shell 0) shell-file-name "/bin/sh"))
302: (csh (equal (file-name-nondirectory shell) "csh")))
303: (call-process-region (point) (mark) shell t t nil
304: (if (and csh use-csh-option-f) "-cf" "-c")
305: (concat "exec " command))))
306:
307: (defun execute-monitor-command (command)
308: (let ((shell (if (/= use-users-shell 0) shell-file-name "/bin/sh"))
309: (csh (equal (file-name-nondirectory shell) "csh")))
310: (call-process shell nil t t
311: (if (and csh use-csh-option-f) "-cf" "-c")
312: (concat "exec " command))))
313:
314: (defun use-syntax-table (name)
315: (set-syntax-table (symbol-value (intern (concat name "-syntax-table")))))
316:
317: (defun line-to-top-of-window ()
318: (recenter (1- (ml-prefix-argument))))
319:
320: (defun ml-previous-page (&optional arg)
321: (let ((count (or arg (ml-prefix-argument))))
322: (while (> count 0)
323: (scroll-down nil)
324: (setq count (1- count)))
325: (while (< count 0)
326: (scroll-up nil)
327: (setq count (1+ count)))))
328:
329: (defun ml-next-page ()
330: (previous-page (- (ml-prefix-argument))))
331:
332: (defun page-next-window (&optional arg)
333: (let ((count (or arg (ml-prefix-argument))))
334: (while (> count 0)
335: (scroll-other-window nil)
336: (setq count (1- count)))
337: (while (< count 0)
338: (scroll-other-window '-)
339: (setq count (1+ count)))))
340:
341: (defun ml-next-window ()
342: (select-window (next-window)))
343:
344: (defun ml-previous-window ()
345: (select-window (previous-window)))
346:
347: (defun scroll-one-line-up ()
348: (scroll-up (ml-prefix-argument)))
349:
350: (defun scroll-one-line-down ()
351: (scroll-down (ml-prefix-argument)))
352:
353: (defun split-current-window ()
354: (split-window (selected-window)))
355:
356: (defun last-key-struck () last-command-char)
357:
358: (defun execute-mlisp-line (string)
359: (eval (read string)))
360:
361: (defun move-dot-to-x-y (x y)
362: (goto-char (window-start (selected-window)))
363: (vertical-motion (1- y))
364: (move-to-column (1- x)))
365:
366: (defun ml-modify-syntax-entry (string)
367: (let ((i 5)
368: (len (length string))
369: (datastring (substring string 0 2)))
370: (if (= (aref string 0) ?\-)
371: (aset datastring 0 ?\ ))
372: (if (= (aref string 2) ?\{)
373: (if (= (aref string 4) ?\ )
374: (aset datastring 0 ?\<)
375: (error "Two-char comment delimiter: use modify-syntax-entry directly")))
376: (if (= (aref string 3) ?\})
377: (if (= (aref string 4) ?\ )
378: (aset datastring 0 ?\>)
379: (error "Two-char comment delimiter: use modify-syntax-entry directly")))
380: (while (< i len)
381: (modify-syntax-entry
382: (aref string i)
383: datastring)
384: (setq i (1+ i))
385: (if (and (< i len)
386: (= (aref string i) ?\-))
387: (let ((c (aref string (1- i)))
388: (lim (aref string (1+ i))))
389: (while (<= c lim)
390: (modify-syntax-entry c datastring)
391: (setq c (1+ c)))
392: (setq i (+ 2 i)))))))
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