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1 ;;; buff-menu.el --- buffer menu main function and support functions.
2
3 ;; Copyright (C) 1985, 86, 87, 93, 94, 95 Free Software Foundation, Inc.
4
5 ;; Maintainer: FSF
6 ;; Keywords: extensions, dumped
7
8 ;; This file is part of XEmacs.
9
10 ;; XEmacs is free software; you can redistribute it and/or modify it
11 ;; under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; any later version.
14
15 ;; XEmacs is distributed in the hope that it will be useful, but
16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ;; General Public License for more details.
19
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
23 ;; 02111-1307, USA.
24
25 ;;; Synched up with: FSF 19.34 except as noted.
26
27 ;;; Commentary:
28
29 ;; This file is dumped with XEmacs.
30
31 ;; Edit, delete, or change attributes of all currently active Emacs
32 ;; buffers from a list summarizing their state. A good way to browse
33 ;; any special or scratch buffers you have loaded, since you can't find
34 ;; them by filename. The single entry point is `Buffer-menu-mode',
35 ;; normally bound to C-x C-b.
36
37 ;;; Change Log:
38
39 ;; Merged by esr with recent mods to Emacs 19 buff-menu, 23 Mar 1993
40 ;;
41 ;; Modified by Bob Weiner, Motorola, Inc., 4/14/89
42 ;;
43 ;; Added optional backup argument to 'Buffer-menu-unmark' to make it undelete
44 ;; current entry and then move to previous one.
45 ;;
46 ;; Based on FSF code dating back to 1985.
47
48 ;;; Code:
49
50 ;;;Trying to preserve the old window configuration works well in
51 ;;;simple scenarios, when you enter the buffer menu, use it, and exit it.
52 ;;;But it does strange things when you switch back to the buffer list buffer
53 ;;;with C-x b, later on, when the window configuration is different.
54 ;;;The choice seems to be, either restore the window configuration
55 ;;;in all cases, or in no cases.
56 ;;;I decided it was better not to restore the window config at all. -- rms.
57
58 ;;;But since then, I changed buffer-menu to use the selected window,
59 ;;;so q now once again goes back to the previous window configuration.
60
61 ;;;(defvar Buffer-menu-window-config nil
62 ;;; "Window configuration saved from entry to `buffer-menu'.")
63
64 ; Put buffer *Buffer List* into proper mode right away
65 ; so that from now on even list-buffers is enough to get a buffer menu.
66
67 (defvar Buffer-menu-buffer-column 4)
68
69 (defvar Buffer-menu-mode-map nil "")
70
71 (if Buffer-menu-mode-map
72 ()
73 (setq Buffer-menu-mode-map (make-keymap))
74 (suppress-keymap Buffer-menu-mode-map t)
75 (set-keymap-name Buffer-menu-mode-map 'Buffer-menu-mode-map) ; XEmacs
76 (define-key Buffer-menu-mode-map "q" 'Buffer-menu-quit)
77 (define-key Buffer-menu-mode-map "v" 'Buffer-menu-select)
78 (define-key Buffer-menu-mode-map "2" 'Buffer-menu-2-window)
79 (define-key Buffer-menu-mode-map "1" 'Buffer-menu-1-window)
80 (define-key Buffer-menu-mode-map "f" 'Buffer-menu-this-window)
81 (define-key Buffer-menu-mode-map "\C-m" 'Buffer-menu-this-window)
82 (define-key Buffer-menu-mode-map "o" 'Buffer-menu-other-window)
83 (define-key Buffer-menu-mode-map "\C-o" 'Buffer-menu-switch-other-window)
84 (define-key Buffer-menu-mode-map "s" 'Buffer-menu-save)
85 (define-key Buffer-menu-mode-map "d" 'Buffer-menu-delete)
86 (define-key Buffer-menu-mode-map "k" 'Buffer-menu-delete)
87 (define-key Buffer-menu-mode-map "\C-d" 'Buffer-menu-delete-backwards)
88 (define-key Buffer-menu-mode-map "\C-k" 'Buffer-menu-delete)
89 (define-key Buffer-menu-mode-map "x" 'Buffer-menu-execute)
90 (define-key Buffer-menu-mode-map " " 'next-line)
91 (define-key Buffer-menu-mode-map "n" 'next-line)
92 (define-key Buffer-menu-mode-map "p" 'previous-line)
93 (define-key Buffer-menu-mode-map 'backspace 'Buffer-menu-backup-unmark)
94 (define-key Buffer-menu-mode-map 'delete 'Buffer-menu-backup-unmark)
95 (define-key Buffer-menu-mode-map "~" 'Buffer-menu-not-modified)
96 (define-key Buffer-menu-mode-map "?" 'describe-mode)
97 (define-key Buffer-menu-mode-map "u" 'Buffer-menu-unmark)
98 (define-key Buffer-menu-mode-map "m" 'Buffer-menu-mark)
99 (define-key Buffer-menu-mode-map "t" 'Buffer-menu-visit-tags-table)
100 (define-key Buffer-menu-mode-map "%" 'Buffer-menu-toggle-read-only)
101 (define-key Buffer-menu-mode-map "g" 'revert-buffer)
102 (define-key Buffer-menu-mode-map 'button2 'Buffer-menu-mouse-select)
103 (define-key Buffer-menu-mode-map 'button3 'Buffer-menu-popup-menu)
104 )
105
106 ;; Buffer Menu mode is suitable only for specially formatted data.
107 (put 'Buffer-menu-mode 'mode-class 'special)
108
109 (defun Buffer-menu-mode ()
110 "Major mode for editing a list of buffers.
111 Each line describes one of the buffers in Emacs.
112 Letters do not insert themselves; instead, they are commands.
113 \\<Buffer-menu-mode-map>
114 \\[Buffer-menu-mouse-select] -- select buffer you click on, in place of the buffer menu.
115 \\[Buffer-menu-this-window] -- select current line's buffer in place of the buffer menu.
116 \\[Buffer-menu-other-window] -- select that buffer in another window,
117 so the buffer menu buffer remains visible in its window.
118 \\[Buffer-menu-switch-other-window] -- make another window display that buffer.
119 \\[Buffer-menu-mark] -- mark current line's buffer to be displayed.
120 \\[Buffer-menu-select] -- select current line's buffer.
121 Also show buffers marked with m, in other windows.
122 \\[Buffer-menu-1-window] -- select that buffer in full-frame window.
123 \\[Buffer-menu-2-window] -- select that buffer in one window,
124 together with buffer selected before this one in another window.
125 \\[Buffer-menu-visit-tags-table] -- visit-tags-table this buffer.
126 \\[Buffer-menu-not-modified] -- clear modified-flag on that buffer.
127 \\[Buffer-menu-save] -- mark that buffer to be saved, and move down.
128 \\[Buffer-menu-delete] -- mark that buffer to be deleted, and move down.
129 \\[Buffer-menu-delete-backwards] -- mark that buffer to be deleted, and move up.
130 \\[Buffer-menu-execute] -- delete or save marked buffers.
131 \\[Buffer-menu-unmark] -- remove all kinds of marks from current line.
132 With prefix argument, also move up one line.
133 \\[Buffer-menu-backup-unmark] -- back up a line and remove marks.
134 \\[Buffer-menu-toggle-read-only] -- toggle read-only status of buffer on this line."
135 (kill-all-local-variables)
136 (use-local-map Buffer-menu-mode-map)
137 (setq major-mode 'Buffer-menu-mode)
138 (setq mode-name "Buffer Menu")
139 (make-local-variable 'revert-buffer-function)
140 (setq revert-buffer-function 'Buffer-menu-revert-function)
141 (setq truncate-lines t)
142 (setq buffer-read-only t)
143 (make-local-variable 'mouse-track-click-hook) ; XEmacs
144 (add-hook 'mouse-track-click-hook 'Buffer-menu-maybe-mouse-select) ; XEmacs
145 (run-hooks 'buffer-menu-mode-hook))
146
147 (defun Buffer-menu-revert-function (ignore1 ignore2)
148 (list-buffers))
149
150 (defun Buffer-menu-buffer (error-if-non-existent-p)
151 "Return buffer described by this line of buffer menu."
152 (let* ((where (save-excursion
153 (beginning-of-line)
154 (+ (point) Buffer-menu-buffer-column)))
155 (name (and (not (eobp)) (get-text-property where 'buffer-name))))
156 (if name
157 (or (get-buffer name)
158 (if error-if-non-existent-p
159 (error "No buffer named `%s'" name)
160 nil))
161 (if error-if-non-existent-p
162 (error "No buffer on this line")
163 nil))))
164
165 (defun buffer-menu (&optional arg)
166 "Make a menu of buffers so you can save, delete or select them.
167 With argument, show only buffers that are visiting files.
168 Type ? after invocation to get help on commands available.
169 Type q immediately to make the buffer menu go away."
170 (interactive "P")
171 ;;; (setq Buffer-menu-window-config (current-window-configuration))
172 (switch-to-buffer (list-buffers-noselect arg))
173 (message
174 "Commands: d, s, x, u; f, o, 1, 2, m, v; ~, %%; q to quit; ? for help."))
175
176 (defun buffer-menu-other-window (&optional arg)
177 "Display a list of buffers in another window.
178 With the buffer list buffer, you can save, delete or select the buffers.
179 With argument, show only buffers that are visiting files.
180 Type ? after invocation to get help on commands available.
181 Type q immediately to make the buffer menu go away."
182 (interactive "P")
183 ;;; (setq Buffer-menu-window-config (current-window-configuration))
184 (switch-to-buffer-other-window (list-buffers-noselect arg))
185 (message
186 "Commands: d, s, x, u; f, o, 1, 2, m, v; ~, %%; q to quit; ? for help."))
187
188 (defun Buffer-menu-quit ()
189 "Quit the buffer menu."
190 (interactive)
191 (let ((buffer (current-buffer)))
192 ;; Switch away from the buffer menu and bury it.
193 (switch-to-buffer (other-buffer))
194 (bury-buffer buffer)))
195
196 (defun Buffer-menu-mark ()
197 "Mark buffer on this line for being displayed by \\<Buffer-menu-mode-map>\\[Buffer-menu-select] command."
198 (interactive)
199 (beginning-of-line)
200 (if (looking-at " [-M]")
201 (ding)
202 (let ((buffer-read-only nil))
203 (delete-char 1)
204 (insert ?>)
205 (forward-line 1))))
206
207 (defun Buffer-menu-unmark (&optional backup)
208 "Cancel all requested operations on buffer on this line and move down.
209 Optional ARG means move up."
210 (interactive "P")
211 (beginning-of-line)
212 (if (looking-at " [-M]")
213 (ding)
214 (let* ((buf (Buffer-menu-buffer t))
215 (mod (buffer-modified-p buf))
216 (readonly (save-excursion (set-buffer buf) buffer-read-only))
217 (buffer-read-only nil))
218 (delete-char 3)
219 (insert (if readonly (if mod " *%" " %") (if mod " * " " ")))))
220 (forward-line (if backup -1 1)))
221
222 (defun Buffer-menu-backup-unmark ()
223 "Move up and cancel all requested operations on buffer on line above."
224 (interactive)
225 (forward-line -1)
226 (Buffer-menu-unmark)
227 (forward-line -1))
228
229 (defun Buffer-menu-delete (&optional arg)
230 "Mark buffer on this line to be deleted by \\<Buffer-menu-mode-map>\\[Buffer-menu-execute] command.
231 Prefix arg is how many buffers to delete.
232 Negative arg means delete backwards."
233 (interactive "p")
234 (beginning-of-line)
235 (if (looking-at " [-M]") ;header lines
236 (ding)
237 (let ((buffer-read-only nil))
238 (if (or (null arg) (= arg 0))
239 (setq arg 1))
240 (while (> arg 0)
241 (delete-char 1)
242 (insert ?D)
243 (forward-line 1)
244 (setq arg (1- arg)))
245 (while (< arg 0)
246 (delete-char 1)
247 (insert ?D)
248 (forward-line -1)
249 (setq arg (1+ arg))))))
250
251 (defun Buffer-menu-delete-backwards (&optional arg)
252 "Mark buffer on this line to be deleted by \\<Buffer-menu-mode-map>\\[Buffer-menu-execute] command
253 and then move up one line. Prefix arg means move that many lines."
254 (interactive "p")
255 (Buffer-menu-delete (- (or arg 1)))
256 (while (looking-at " [-M]")
257 (forward-line 1)))
258
259 (defun Buffer-menu-save ()
260 "Mark buffer on this line to be saved by \\<Buffer-menu-mode-map>\\[Buffer-menu-execute] command."
261 (interactive)
262 (beginning-of-line)
263 (if (looking-at " [-M]") ;header lines
264 (ding)
265 (let ((buffer-read-only nil))
266 (forward-char 1)
267 (delete-char 1)
268 (insert ?S)
269 (forward-line 1))))
270
271 (defun Buffer-menu-not-modified (&optional arg)
272 "Mark buffer on this line as unmodified (no changes to save)."
273 (interactive "P")
274 (save-excursion
275 (set-buffer (Buffer-menu-buffer t))
276 (set-buffer-modified-p arg))
277 (save-excursion
278 (beginning-of-line)
279 (forward-char 1)
280 (if (= (char-after (point)) (if arg ? ?*))
281 (let ((buffer-read-only nil))
282 (delete-char 1)
283 (insert (if arg ?* ? ))))))
284
285 (defun Buffer-menu-execute ()
286 "Save and/or delete buffers marked with \\<Buffer-menu-mode-map>\\[Buffer-menu-save] or \\<Buffer-menu-mode-map>\\[Buffer-menu-delete] commands."
287 (interactive)
288 (save-excursion
289 (goto-char (point-min))
290 (forward-line 1)
291 (while (re-search-forward "^.S" nil t)
292 (let ((modp nil))
293 (save-excursion
294 (set-buffer (Buffer-menu-buffer t))
295 (save-buffer)
296 (setq modp (buffer-modified-p)))
297 (let ((buffer-read-only nil))
298 (delete-char -1)
299 (insert (if modp ?* ? ))))))
300 (save-excursion
301 (goto-char (point-min))
302 (forward-line 1)
303 (let ((buff-menu-buffer (current-buffer))
304 (buffer-read-only nil))
305 (while (search-forward "\nD" nil t)
306 (forward-char -1)
307 (let ((buf (Buffer-menu-buffer nil)))
308 (or (eq buf nil)
309 (eq buf buff-menu-buffer)
310 (save-excursion (kill-buffer buf))))
311 (if (Buffer-menu-buffer nil)
312 (progn (delete-char 1)
313 (insert ? ))
314 (delete-region (point) (progn (forward-line 1) (point)))
315 (forward-char -1))))))
316
317 (defun Buffer-menu-select ()
318 "Select this line's buffer; also display buffers marked with `>'.
319 You can mark buffers with the \\<Buffer-menu-mode-map>\\[Buffer-menu-mark] command.
320 This command deletes and replaces all the previously existing windows
321 in the selected frame."
322 (interactive)
323 (let ((buff (Buffer-menu-buffer t))
324 (menu (current-buffer))
325 (others ())
326 tem)
327 (goto-char (point-min))
328 (while (search-forward "\n>" nil t)
329 (setq tem (Buffer-menu-buffer t))
330 (let ((buffer-read-only nil))
331 (delete-char -1)
332 (insert ?\ ))
333 (or (eq tem buff) (memq tem others) (setq others (cons tem others))))
334 (setq others (nreverse others)
335 tem (/ (1- (frame-height)) (1+ (length others))))
336 (delete-other-windows)
337 (switch-to-buffer buff)
338 (or (eq menu buff)
339 (bury-buffer menu))
340 (if (equal (length others) 0)
341 (progn
342 ;;; ;; Restore previous window configuration before displaying
343 ;;; ;; selected buffers.
344 ;;; (if Buffer-menu-window-config
345 ;;; (progn
346 ;;; (set-window-configuration Buffer-menu-window-config)
347 ;;; (setq Buffer-menu-window-config nil)))
348 (switch-to-buffer buff))
349 (while others
350 (split-window nil tem)
351 (other-window 1)
352 (switch-to-buffer (car others))
353 (setq others (cdr others)))
354 (other-window 1) ;back to the beginning!
355 )))
356
357
358
359 (defun Buffer-menu-visit-tags-table ()
360 "Visit the tags table in the buffer on this line. See `visit-tags-table'."
361 (interactive)
362 (let ((file (buffer-file-name (Buffer-menu-buffer t))))
363 (if file
364 (visit-tags-table file)
365 (error "Specified buffer has no file"))))
366
367 (defun Buffer-menu-1-window ()
368 "Select this line's buffer, alone, in full frame."
369 (interactive)
370 (switch-to-buffer (Buffer-menu-buffer t))
371 (bury-buffer (other-buffer))
372 (delete-other-windows)
373 ;; XEmacs:
374 ;; This is to get w->force_start set to nil. Don't ask me, I only work here.
375 (set-window-buffer (selected-window) (current-buffer)))
376
377 (defun Buffer-menu-mouse-select (event)
378 "Select the buffer whose line you click on."
379 (interactive "e")
380 (let (buffer)
381 (save-excursion
382 (set-buffer (event-buffer event)) ; XEmacs
383 (save-excursion
384 (goto-char (event-point event)) ; XEmacs
385 (setq buffer (Buffer-menu-buffer t))))
386 (select-window (event-window event)) ; XEmacs
387 (if (and (window-dedicated-p (selected-window))
388 (eq (selected-window) (frame-root-window)))
389 (switch-to-buffer-other-frame buffer)
390 (switch-to-buffer buffer))))
391
392 ;; XEmacs
393 (defun Buffer-menu-maybe-mouse-select (event &optional click-count)
394 (interactive "e")
395 (and (>= click-count 2)
396 (let ((buffer (current-buffer))
397 (point (point))
398 (config (current-window-configuration)))
399 (condition-case nil
400 (progn
401 (Buffer-menu-mouse-select event)
402 t)
403 (error
404 (set-window-configuration config)
405 (set-buffer buffer)
406 (goto-char point)
407 nil)))))
408
409 (defun Buffer-menu-this-window ()
410 "Select this line's buffer in this window."
411 (interactive)
412 (switch-to-buffer (Buffer-menu-buffer t)))
413
414 (defun Buffer-menu-other-window ()
415 "Select this line's buffer in other window, leaving buffer menu visible."
416 (interactive)
417 (switch-to-buffer-other-window (Buffer-menu-buffer t)))
418
419 (defun Buffer-menu-switch-other-window ()
420 "Make the other window select this line's buffer.
421 The current window remains selected."
422 (interactive)
423 (display-buffer (Buffer-menu-buffer t)))
424
425 (defun Buffer-menu-2-window ()
426 "Select this line's buffer, with previous buffer in second window."
427 (interactive)
428 (let ((buff (Buffer-menu-buffer t))
429 (menu (current-buffer))
430 (pop-up-windows t))
431 (delete-other-windows)
432 (switch-to-buffer (other-buffer))
433 (pop-to-buffer buff)
434 (bury-buffer menu)))
435
436 (defun Buffer-menu-toggle-read-only ()
437 "Toggle read-only status of buffer on this line, perhaps via version control."
438 (interactive)
439 (let (char)
440 (save-excursion
441 (set-buffer (Buffer-menu-buffer t))
442 (vc-toggle-read-only)
443 (setq char (if buffer-read-only ?% ? )))
444 (save-excursion
445 (beginning-of-line)
446 (forward-char 2)
447 (if (/= (following-char) char)
448 (let (buffer-read-only)
449 (delete-char 1)
450 (insert char))))))
451
452 ;; XEmacs
453 (defvar Buffer-menu-popup-menu
454 '("Buffer Commands"
455 ["Select Buffer" Buffer-menu-select t]
456 ["Select buffer Other Window" Buffer-menu-other-window t]
457 ["Clear Buffer Modification Flag" Buffer-menu-not-modified t]
458 "----"
459 ["Mark Buffer for Selection" Buffer-menu-mark t]
460 ["Mark Buffer for Save" Buffer-menu-save t]
461 ["Mark Buffer for Deletion" Buffer-menu-delete t]
462 ["Unmark Buffer" Buffer-menu-unmark t]
463 "----"
464 ["Delete/Save Marked Buffers" Buffer-menu-execute t]
465 ))
466
467 ;; XEmacs
468 (defun Buffer-menu-popup-menu (event)
469 (interactive "e")
470 (mouse-set-point event)
471 (beginning-of-line)
472 (let ((buffer (Buffer-menu-buffer nil)))
473 (if buffer
474 (popup-menu
475 (nconc (list (car Buffer-menu-popup-menu)
476 (concat
477 "Commands on buffer \"" (buffer-name buffer) "\":")
478 "----")
479 (cdr Buffer-menu-popup-menu)))
480 (error "no buffer on this line"))))
481
482
483 ;; XEmacs
484 (defvar list-buffers-header-line
485 (purecopy (concat " MR Buffer Size Mode File\n"
486 " -- ------ ---- ---- ----\n")))
487
488 ;; XEmacs
489 (defvar list-buffers-identification 'default-list-buffers-identification
490 "String used to identify this buffer, or a function of one argument
491 to generate such a string. This variable is always buffer-local.")
492 (make-variable-buffer-local 'list-buffers-identification)
493
494 ;; XEmacs
495 ;;;###autoload
496 (defvar list-buffers-directory nil)
497
498 ;;;###autoload
499 (make-variable-buffer-local 'list-buffers-directory)
500
501 ;; #### not synched
502 (defun default-list-buffers-identification (output)
503 (save-excursion
504 (let ((file (or (buffer-file-name (current-buffer))
505 (and (boundp 'list-buffers-directory)
506 list-buffers-directory)))
507 (size (buffer-size))
508 (mode mode-name)
509 eob p s col)
510 (set-buffer output)
511 (end-of-line)
512 (setq eob (point))
513 (prin1 size output)
514 (setq p (point))
515 ;; right-justify the size
516 (move-to-column 19 t)
517 (setq col (point))
518 (if (> eob col)
519 (goto-char eob))
520 (setq s (- 6 (- p col)))
521 (while (> s 0) ; speed/consing tradeoff...
522 (insert ? )
523 (setq s (1- s)))
524 (end-of-line)
525 (indent-to 27 1)
526 (insert mode)
527 (if (not file)
528 nil
529 ;; if the mode-name is really long, clip it for the filename
530 (if (> 0 (setq s (- 39 (current-column))))
531 (delete-char (max s (- eob (point)))))
532 (indent-to 40 1)
533 (insert file)))))
534
535 ;; #### not synched
536 (defun list-buffers-internal (output &optional predicate)
537 (let ((current (current-buffer))
538 (buffers (buffer-list)))
539 (save-excursion
540 (set-buffer output)
541 (setq buffer-read-only nil)
542 (erase-buffer)
543 (buffer-disable-undo output)
544 (insert list-buffers-header-line)
545
546 (while buffers
547 (let* ((col1 19)
548 (buffer (car buffers))
549 (name (buffer-name buffer))
550 this-buffer-line-start)
551 (setq buffers (cdr buffers))
552 (cond ((null name)) ;deleted buffer
553 ((and predicate
554 (not (if (stringp predicate)
555 (string-match predicate name)
556 (funcall predicate buffer))))
557 nil)
558 (t
559 (set-buffer buffer)
560 (let ((ro buffer-read-only)
561 (id list-buffers-identification))
562 (set-buffer output)
563 (setq this-buffer-line-start (point))
564 (insert (if (eq buffer current)
565 (progn (setq current (point)) ?\.)
566 ?\ ))
567 (insert (if (buffer-modified-p buffer)
568 ?\*
569 ?\ ))
570 (insert (if ro
571 ?\%
572 ?\ ))
573 (if (string-match "[\n\"\\ \t]" name)
574 (let ((print-escape-newlines t))
575 (prin1 name output))
576 (insert ?\ name))
577 (indent-to col1 1)
578 (cond ((stringp id)
579 (insert id))
580 (id
581 (set-buffer buffer)
582 (condition-case e
583 (funcall id output)
584 (error
585 (princ "***" output) (prin1 e output)))
586 (set-buffer output)
587 (goto-char (point-max)))))
588 (put-nonduplicable-text-property this-buffer-line-start
589 (point)
590 'buffer-name name)
591 (put-nonduplicable-text-property this-buffer-line-start
592 (point)
593 'highlight t)
594 (insert ?\n)))))
595
596 (Buffer-menu-mode)
597 (if (not (bufferp current))
598 (goto-char current)))))
599 ;(define-key ctl-x-map "\C-b" 'list-buffers)
600
601 (defun list-buffers (&optional files-only)
602 "Display a list of names of existing buffers.
603 The list is displayed in a buffer named `*Buffer List*'.
604 Note that buffers with names starting with spaces are omitted.
605 Non-null optional arg FILES-ONLY means mention only file buffers.
606
607 The M column contains a * for buffers that are modified.
608 The R column contains a % for buffers that are read-only."
609 (interactive (list (if current-prefix-arg t nil))) ; XEmacs
610 (display-buffer (list-buffers-noselect files-only)))
611
612 ;; #### not synched
613 (defun list-buffers-noselect (&optional files-only)
614 "Create and return a buffer with a list of names of existing buffers.
615 The buffer is named `*Buffer List*'.
616 Note that buffers with names starting with spaces are omitted.
617 Non-null optional arg FILES-ONLY means mention only file buffers.
618
619 The M column contains a * for buffers that are modified.
620 The R column contains a % for buffers that are read-only."
621 (let ((buffer (get-buffer-create "*Buffer List*")))
622 (list-buffers-internal buffer
623 (if (memq files-only '(t nil))
624 #'(lambda (b)
625 (let ((n (buffer-name b)))
626 (cond ((and (/= 0 (length n))
627 (= (aref n 0) ?\ ))
628 ;;don't mention if starts with " "
629 nil)
630 (files-only
631 (buffer-file-name b))
632 (t
633 t))))
634 files-only))
635 buffer))
636
637 (provide 'buff-menu)
638
639 ;;; buff-menu.el ends here