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5e684428 | 1 | ;;; buff-menu.el --- buffer menu main function and support functions -*- coding:utf-8 -*- |
c0274f38 | 2 | |
acaf905b | 3 | ;; Copyright (C) 1985-1987, 1993-1995, 2000-2012 |
e9bffc61 | 4 | ;; Free Software Foundation, Inc. |
2dd96f23 | 5 | |
9750e079 | 6 | ;; Maintainer: FSF |
6d6c3f84 | 7 | ;; Keywords: convenience |
bd78fa1d | 8 | ;; Package: emacs |
9750e079 | 9 | |
2dd96f23 JB |
10 | ;; This file is part of GNU Emacs. |
11 | ||
eb3fa2cf | 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
2dd96f23 | 13 | ;; it under the terms of the GNU General Public License as published by |
eb3fa2cf GM |
14 | ;; the Free Software Foundation, either version 3 of the License, or |
15 | ;; (at your option) any later version. | |
2dd96f23 JB |
16 | |
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
eb3fa2cf | 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
2dd96f23 | 24 | |
e41b2db1 ER |
25 | ;;; Commentary: |
26 | ||
27 | ;; Edit, delete, or change attributes of all currently active Emacs | |
eb8c3be9 | 28 | ;; buffers from a list summarizing their state. A good way to browse |
e41b2db1 | 29 | ;; any special or scratch buffers you have loaded, since you can't find |
6d6c3f84 | 30 | ;; them by filename. The single entry point is `list-buffers', |
86dbbfc2 ER |
31 | ;; normally bound to C-x C-b. |
32 | ||
33 | ;;; Change Log: | |
34 | ||
42a19c2a RS |
35 | ;; Buffer-menu-view: New function |
36 | ;; Buffer-menu-view-other-window: New function | |
37 | ||
86dbbfc2 ER |
38 | ;; Merged by esr with recent mods to Emacs 19 buff-menu, 23 Mar 1993 |
39 | ;; | |
86dbbfc2 ER |
40 | ;; Modified by Bob Weiner, Motorola, Inc., 4/14/89 |
41 | ;; | |
42 | ;; Added optional backup argument to 'Buffer-menu-unmark' to make it undelete | |
43 | ;; current entry and then move to previous one. | |
44 | ;; | |
45 | ;; Based on FSF code dating back to 1985. | |
e41b2db1 | 46 | |
5de9bdab | 47 | ;;; Code: |
10e1dad9 | 48 | |
d5aacb46 SM |
49 | ;;Trying to preserve the old window configuration works well in |
50 | ;;simple scenarios, when you enter the buffer menu, use it, and exit it. | |
51 | ;;But it does strange things when you switch back to the buffer list buffer | |
52 | ;;with C-x b, later on, when the window configuration is different. | |
53 | ;;The choice seems to be, either restore the window configuration | |
54 | ;;in all cases, or in no cases. | |
55 | ;;I decided it was better not to restore the window config at all. -- rms. | |
08c82d4d | 56 | |
d5aacb46 SM |
57 | ;;But since then, I changed buffer-menu to use the selected window, |
58 | ;;so q now once again goes back to the previous window configuration. | |
08c82d4d | 59 | |
d5aacb46 SM |
60 | ;;(defvar Buffer-menu-window-config nil |
61 | ;; "Window configuration saved from entry to `buffer-menu'.") | |
2dd96f23 | 62 | |
d5aacb46 SM |
63 | ;; Put buffer *Buffer List* into proper mode right away |
64 | ;; so that from now on even list-buffers is enough to get a buffer menu. | |
2dd96f23 | 65 | |
bc7bb432 JB |
66 | (defgroup Buffer-menu nil |
67 | "Show a menu of all buffers in a buffer." | |
68 | :group 'tools | |
69 | :group 'convenience) | |
70 | ||
71 | (defcustom Buffer-menu-use-header-line t | |
9201cc28 | 72 | "Non-nil means to use an immovable header-line." |
bc7bb432 JB |
73 | :type 'boolean |
74 | :group 'Buffer-menu) | |
75 | ||
d247d0fe | 76 | (defface buffer-menu-buffer |
bc7bb432 | 77 | '((t (:weight bold))) |
d247d0fe | 78 | "Face used to highlight buffer names in the buffer menu." |
2a8f2d4c | 79 | :group 'Buffer-menu) |
d247d0fe | 80 | (put 'Buffer-menu-buffer 'face-alias 'buffer-menu-buffer) |
bc7bb432 | 81 | |
4f0992b3 | 82 | (defcustom Buffer-menu-buffer+size-width 26 |
9201cc28 | 83 | "How wide to jointly make the buffer name and size columns." |
bc7bb432 JB |
84 | :type 'number |
85 | :group 'Buffer-menu) | |
86 | ||
4f0992b3 | 87 | (defcustom Buffer-menu-mode-width 16 |
9201cc28 | 88 | "How wide to make the mode name column." |
bc7bb432 JB |
89 | :type 'number |
90 | :group 'Buffer-menu) | |
91 | ||
3ce5f932 LT |
92 | (defcustom Buffer-menu-use-frame-buffer-list t |
93 | "If non-nil, the Buffer Menu uses the selected frame's buffer list. | |
94 | Buffers that were never selected in that frame are listed at the end. | |
95 | If the value is nil, the Buffer Menu uses the global buffer list. | |
96 | This variable matters if the Buffer Menu is sorted by visited order, | |
97 | as it is by default." | |
98 | :type 'boolean | |
99 | :group 'Buffer-menu | |
100 | :version "22.1") | |
101 | ||
d5aacb46 | 102 | ;; This should get updated & resorted when you click on a column heading |
bc7bb432 | 103 | (defvar Buffer-menu-sort-column nil |
84bbd894 RS |
104 | "Which column to sort the menu on. |
105 | Use 2 to sort by buffer names, or 5 to sort by file names. | |
392225ee | 106 | A nil value means sort by visited order (the default).") |
bc7bb432 JB |
107 | |
108 | (defconst Buffer-menu-buffer-column 4) | |
e5ea316b | 109 | |
7b0a86ab LT |
110 | (defvar Buffer-menu-files-only nil |
111 | "Non-nil if the current buffer-menu lists only file buffers. | |
112 | This variable determines whether reverting the buffer lists only | |
113 | file buffers. It affects both manual reverting and reverting by | |
114 | Auto Revert Mode.") | |
392225ee JB |
115 | (make-variable-buffer-local 'Buffer-menu-files-only) |
116 | ||
362b9d48 GM |
117 | (defvar Buffer-menu--buffers nil |
118 | "If non-nil, list of buffers shown in the current buffer-menu. | |
119 | This variable determines whether reverting the buffer lists only | |
be71f810 | 120 | these buffers. It affects both manual reverting and reverting by |
362b9d48 GM |
121 | Auto Revert Mode.") |
122 | (make-variable-buffer-local 'Buffer-menu--buffers) | |
123 | ||
fb5614e8 | 124 | (defvar Info-current-file) ;; from info.el |
b653cee4 | 125 | (defvar Info-current-node) ;; from info.el |
fb5614e8 | 126 | |
392225ee | 127 | (defvar Buffer-menu-mode-map |
6a6baf11 DN |
128 | (let ((map (make-keymap)) |
129 | (menu-map (make-sparse-keymap))) | |
392225ee | 130 | (suppress-keymap map t) |
392225ee JB |
131 | (define-key map "v" 'Buffer-menu-select) |
132 | (define-key map "2" 'Buffer-menu-2-window) | |
133 | (define-key map "1" 'Buffer-menu-1-window) | |
134 | (define-key map "f" 'Buffer-menu-this-window) | |
135 | (define-key map "e" 'Buffer-menu-this-window) | |
136 | (define-key map "\C-m" 'Buffer-menu-this-window) | |
137 | (define-key map "o" 'Buffer-menu-other-window) | |
138 | (define-key map "\C-o" 'Buffer-menu-switch-other-window) | |
139 | (define-key map "s" 'Buffer-menu-save) | |
140 | (define-key map "d" 'Buffer-menu-delete) | |
141 | (define-key map "k" 'Buffer-menu-delete) | |
142 | (define-key map "\C-d" 'Buffer-menu-delete-backwards) | |
143 | (define-key map "\C-k" 'Buffer-menu-delete) | |
144 | (define-key map "x" 'Buffer-menu-execute) | |
145 | (define-key map " " 'next-line) | |
146 | (define-key map "n" 'next-line) | |
147 | (define-key map "p" 'previous-line) | |
148 | (define-key map "\177" 'Buffer-menu-backup-unmark) | |
149 | (define-key map "~" 'Buffer-menu-not-modified) | |
392225ee JB |
150 | (define-key map "u" 'Buffer-menu-unmark) |
151 | (define-key map "m" 'Buffer-menu-mark) | |
152 | (define-key map "t" 'Buffer-menu-visit-tags-table) | |
153 | (define-key map "%" 'Buffer-menu-toggle-read-only) | |
154 | (define-key map "b" 'Buffer-menu-bury) | |
392225ee JB |
155 | (define-key map "V" 'Buffer-menu-view) |
156 | (define-key map "T" 'Buffer-menu-toggle-files-only) | |
157 | (define-key map [mouse-2] 'Buffer-menu-mouse-select) | |
158 | (define-key map [follow-link] 'mouse-face) | |
9cda680d JL |
159 | (define-key map (kbd "M-s a C-s") 'Buffer-menu-isearch-buffers) |
160 | (define-key map (kbd "M-s a M-C-s") 'Buffer-menu-isearch-buffers-regexp) | |
c9753fb4 | 161 | (define-key map [menu-bar Buffer-menu-mode] (cons (purecopy "Buffer-Menu") menu-map)) |
6a6baf11 | 162 | (define-key menu-map [quit] |
905a9ed3 | 163 | `(menu-item ,(purecopy "Quit") quit-window |
c9753fb4 | 164 | :help ,(purecopy "Remove the buffer menu from the display"))) |
6a6baf11 | 165 | (define-key menu-map [rev] |
905a9ed3 DN |
166 | `(menu-item ,(purecopy "Refresh") revert-buffer |
167 | :help ,(purecopy "Refresh the *Buffer List* buffer contents"))) | |
a3c20c83 | 168 | (define-key menu-map [s0] menu-bar-separator) |
6a6baf11 | 169 | (define-key menu-map [tf] |
7cc6e154 | 170 | `(menu-item ,(purecopy "Show Only File Buffers") Buffer-menu-toggle-files-only |
6a6baf11 | 171 | :button (:toggle . Buffer-menu-files-only) |
905a9ed3 | 172 | :help ,(purecopy "Toggle whether the current buffer-menu displays only file buffers"))) |
a3c20c83 | 173 | (define-key menu-map [s1] menu-bar-separator) |
6a6baf11 DN |
174 | ;; FIXME: The "Select" entries could use better names... |
175 | (define-key menu-map [sel] | |
7cc6e154 | 176 | `(menu-item ,(purecopy "Select Marked") Buffer-menu-select |
905a9ed3 | 177 | :help ,(purecopy "Select this line's buffer; also display buffers marked with `>'"))) |
6a6baf11 | 178 | (define-key menu-map [bm2] |
7cc6e154 | 179 | `(menu-item ,(purecopy "Select Two") Buffer-menu-2-window |
905a9ed3 | 180 | :help ,(purecopy "Select this line's buffer, with previous buffer in second window"))) |
6a6baf11 | 181 | (define-key menu-map [bm1] |
7cc6e154 | 182 | `(menu-item ,(purecopy "Select Current") Buffer-menu-1-window |
905a9ed3 | 183 | :help ,(purecopy "Select this line's buffer, alone, in full frame"))) |
6a6baf11 | 184 | (define-key menu-map [ow] |
7cc6e154 | 185 | `(menu-item ,(purecopy "Select in Other Window") Buffer-menu-other-window |
905a9ed3 | 186 | :help ,(purecopy "Select this line's buffer in other window, leaving buffer menu visible"))) |
6a6baf11 | 187 | (define-key menu-map [tw] |
7cc6e154 | 188 | `(menu-item ,(purecopy "Select in Current Window") Buffer-menu-this-window |
905a9ed3 | 189 | :help ,(purecopy "Select this line's buffer in this window"))) |
a3c20c83 | 190 | (define-key menu-map [s2] menu-bar-separator) |
6a6baf11 | 191 | (define-key menu-map [is] |
7cc6e154 | 192 | `(menu-item ,(purecopy "Regexp Isearch Marked Buffers...") Buffer-menu-isearch-buffers-regexp |
905a9ed3 | 193 | :help ,(purecopy "Search for a regexp through all marked buffers using Isearch"))) |
6a6baf11 | 194 | (define-key menu-map [ir] |
7cc6e154 | 195 | `(menu-item ,(purecopy "Isearch Marked Buffers...") Buffer-menu-isearch-buffers |
905a9ed3 | 196 | :help ,(purecopy "Search for a string through all marked buffers using Isearch"))) |
a3c20c83 | 197 | (define-key menu-map [s3] menu-bar-separator) |
6a6baf11 | 198 | (define-key menu-map [by] |
905a9ed3 DN |
199 | `(menu-item ,(purecopy "Bury") Buffer-menu-bury |
200 | :help ,(purecopy "Bury the buffer listed on this line"))) | |
6a6baf11 | 201 | (define-key menu-map [vt] |
7cc6e154 | 202 | `(menu-item ,(purecopy "Set Unmodified") Buffer-menu-not-modified |
905a9ed3 | 203 | :help ,(purecopy "Mark buffer on this line as unmodified (no changes to save)"))) |
6a6baf11 | 204 | (define-key menu-map [ex] |
905a9ed3 DN |
205 | `(menu-item ,(purecopy "Execute") Buffer-menu-execute |
206 | :help ,(purecopy "Save and/or delete buffers marked with s or k commands"))) | |
a3c20c83 | 207 | (define-key menu-map [s4] menu-bar-separator) |
6a6baf11 | 208 | (define-key menu-map [delb] |
7cc6e154 | 209 | `(menu-item ,(purecopy "Mark for Delete and Move Backwards") Buffer-menu-delete-backwards |
905a9ed3 | 210 | :help ,(purecopy "Mark buffer on this line to be deleted by x command and move up one line"))) |
6a6baf11 | 211 | (define-key menu-map [del] |
7cc6e154 | 212 | `(menu-item ,(purecopy "Mark for Delete") Buffer-menu-delete |
905a9ed3 | 213 | :help ,(purecopy "Mark buffer on this line to be deleted by x command"))) |
6a6baf11 DN |
214 | |
215 | (define-key menu-map [sv] | |
7cc6e154 | 216 | `(menu-item ,(purecopy "Mark for Save") Buffer-menu-save |
905a9ed3 | 217 | :help ,(purecopy "Mark buffer on this line to be saved by x command"))) |
6a6baf11 | 218 | (define-key menu-map [umk] |
905a9ed3 DN |
219 | `(menu-item ,(purecopy "Unmark") Buffer-menu-unmark |
220 | :help ,(purecopy "Cancel all requested operations on buffer on this line and move down"))) | |
6a6baf11 | 221 | (define-key menu-map [mk] |
905a9ed3 DN |
222 | `(menu-item ,(purecopy "Mark") Buffer-menu-mark |
223 | :help ,(purecopy "Mark buffer on this line for being displayed by v command"))) | |
392225ee JB |
224 | map) |
225 | "Local keymap for `Buffer-menu-mode' buffers.") | |
2dd96f23 JB |
226 | |
227 | ;; Buffer Menu mode is suitable only for specially formatted data. | |
228 | (put 'Buffer-menu-mode 'mode-class 'special) | |
229 | ||
fa9d0f38 | 230 | (define-derived-mode Buffer-menu-mode special-mode "Buffer Menu" |
2dd96f23 JB |
231 | "Major mode for editing a list of buffers. |
232 | Each line describes one of the buffers in Emacs. | |
233 | Letters do not insert themselves; instead, they are commands. | |
234 | \\<Buffer-menu-mode-map> | |
2cf5fc7e RS |
235 | \\[Buffer-menu-mouse-select] -- select buffer you click on, in place of the buffer menu. |
236 | \\[Buffer-menu-this-window] -- select current line's buffer in place of the buffer menu. | |
237 | \\[Buffer-menu-other-window] -- select that buffer in another window, | |
238 | so the buffer menu buffer remains visible in its window. | |
42a19c2a RS |
239 | \\[Buffer-menu-view] -- select current line's buffer, but in view-mode. |
240 | \\[Buffer-menu-view-other-window] -- select that buffer in | |
241 | another window, in view-mode. | |
2cf5fc7e RS |
242 | \\[Buffer-menu-switch-other-window] -- make another window display that buffer. |
243 | \\[Buffer-menu-mark] -- mark current line's buffer to be displayed. | |
244 | \\[Buffer-menu-select] -- select current line's buffer. | |
245 | Also show buffers marked with m, in other windows. | |
dc6d9681 | 246 | \\[Buffer-menu-1-window] -- select that buffer in full-frame window. |
2dd96f23 JB |
247 | \\[Buffer-menu-2-window] -- select that buffer in one window, |
248 | together with buffer selected before this one in another window. | |
1fbb8c2e JL |
249 | \\[Buffer-menu-isearch-buffers] -- Do incremental search in the marked buffers. |
250 | \\[Buffer-menu-isearch-buffers-regexp] -- Isearch for regexp in the marked buffers. | |
2dd96f23 JB |
251 | \\[Buffer-menu-visit-tags-table] -- visit-tags-table this buffer. |
252 | \\[Buffer-menu-not-modified] -- clear modified-flag on that buffer. | |
253 | \\[Buffer-menu-save] -- mark that buffer to be saved, and move down. | |
254 | \\[Buffer-menu-delete] -- mark that buffer to be deleted, and move down. | |
255 | \\[Buffer-menu-delete-backwards] -- mark that buffer to be deleted, and move up. | |
256 | \\[Buffer-menu-execute] -- delete or save marked buffers. | |
257 | \\[Buffer-menu-unmark] -- remove all kinds of marks from current line. | |
86dbbfc2 | 258 | With prefix argument, also move up one line. |
d91e2b1a | 259 | \\[Buffer-menu-backup-unmark] -- back up a line and remove marks. |
0f88624e | 260 | \\[Buffer-menu-toggle-read-only] -- toggle read-only status of buffer on this line. |
fa9d0f38 | 261 | \\[revert-buffer] -- update the list of buffers. |
7b0a86ab | 262 | \\[Buffer-menu-toggle-files-only] -- toggle whether the menu displays only file buffers. |
a59faabe | 263 | \\[Buffer-menu-bury] -- bury the buffer listed on this line." |
7b0a86ab LT |
264 | (set (make-local-variable 'revert-buffer-function) |
265 | 'Buffer-menu-revert-function) | |
266 | (set (make-local-variable 'buffer-stale-function) | |
06b60517 | 267 | (lambda (&optional _noconfirm) 'fast)) |
823316aa | 268 | (setq truncate-lines t) |
acb28818 EZ |
269 | (setq buffer-read-only t) |
270 | ;; Force L2R direction, to avoid messing the display if the first | |
7e2ad32c | 271 | ;; buffer in the list happens to begin with a strong R2L character. |
acb28818 | 272 | (setq bidi-paragraph-direction 'left-to-right)) |
710e5da8 | 273 | |
bf48d4ef GM |
274 | (define-obsolete-variable-alias 'buffer-menu-mode-hook |
275 | 'Buffer-menu-mode-hook "23.1") | |
276 | ||
06b60517 | 277 | (defun Buffer-menu-revert-function (_ignore1 _ignore2) |
fda73b45 LT |
278 | (or (eq buffer-undo-list t) |
279 | (setq buffer-undo-list nil)) | |
7b0a86ab | 280 | ;; We can not use save-excursion here. The buffer gets erased. |
3f9c9ff7 LT |
281 | (let ((opoint (point)) |
282 | (eobp (eobp)) | |
283 | (ocol (current-column)) | |
60ed8c72 | 284 | (oline (progn (move-to-column Buffer-menu-buffer-column) |
bfb2dda4 | 285 | (get-text-property (point) 'buffer))) |
fda73b45 LT |
286 | (prop (point-min)) |
287 | ;; do not make undo records for the reversion. | |
288 | (buffer-undo-list t)) | |
63de2160 LT |
289 | ;; We can be called by Auto Revert Mode with the "*Buffer Menu*" |
290 | ;; temporarily the current buffer. Make sure that the | |
291 | ;; interactively current buffer is correctly identified with a `.' | |
292 | ;; by `list-buffers-noselect'. | |
293 | (with-current-buffer (window-buffer) | |
362b9d48 | 294 | (list-buffers-noselect Buffer-menu-files-only Buffer-menu--buffers)) |
3f9c9ff7 LT |
295 | (if oline |
296 | (while (setq prop (next-single-property-change prop 'buffer)) | |
297 | (when (eq (get-text-property prop 'buffer) oline) | |
298 | (goto-char prop) | |
299 | (move-to-column ocol))) | |
300 | (goto-char (if eobp (point-max) opoint))))) | |
7b0a86ab LT |
301 | |
302 | (defun Buffer-menu-toggle-files-only (arg) | |
303 | "Toggle whether the current buffer-menu displays only file buffers. | |
304 | With a positive ARG display only file buffers. With zero or | |
305 | negative ARG, display other buffers as well." | |
306 | (interactive "P") | |
307 | (setq Buffer-menu-files-only | |
308 | (cond ((not arg) (not Buffer-menu-files-only)) | |
309 | ((> (prefix-numeric-value arg) 0) t))) | |
310 | (revert-buffer)) | |
311 | ||
2dd96f23 | 312 | \f |
2dd96f23 JB |
313 | (defun Buffer-menu-buffer (error-if-non-existent-p) |
314 | "Return buffer described by this line of buffer menu." | |
9b026d9f | 315 | (let* ((where (+ (line-beginning-position) Buffer-menu-buffer-column)) |
601ed8a0 GM |
316 | (name (and (not (eobp)) (get-text-property where 'buffer-name))) |
317 | (buf (and (not (eobp)) (get-text-property where 'buffer)))) | |
1b40dbed RS |
318 | (if name |
319 | (or (get-buffer name) | |
601ed8a0 | 320 | (and buf (buffer-name buf) buf) |
1b40dbed RS |
321 | (if error-if-non-existent-p |
322 | (error "No buffer named `%s'" name) | |
323 | nil)) | |
601ed8a0 | 324 | (or (and buf (buffer-name buf) buf) |
463a7342 JPW |
325 | (if error-if-non-existent-p |
326 | (error "No buffer on this line") | |
601ed8a0 | 327 | nil))))) |
2dd96f23 | 328 | \f |
06b1a5ef | 329 | (defun buffer-menu (&optional arg) |
2dd96f23 JB |
330 | "Make a menu of buffers so you can save, delete or select them. |
331 | With argument, show only buffers that are visiting files. | |
332 | Type ? after invocation to get help on commands available. | |
6a0d92d3 RS |
333 | Type q to remove the buffer menu from the display. |
334 | ||
335 | The first column shows `>' for a buffer you have | |
336 | marked to be displayed, `D' for one you have marked for | |
337 | deletion, and `.' for the current buffer. | |
338 | ||
bc7bb432 JB |
339 | The C column has a `.' for the buffer from which you came. |
340 | The R column has a `%' if the buffer is read-only. | |
6a0d92d3 RS |
341 | The M column has a `*' if it is modified, |
342 | or `S' if you have marked it for saving. | |
6a0d92d3 RS |
343 | After this come the buffer name, its size in characters, |
344 | its major mode, and the visited file name (if any)." | |
08c82d4d RS |
345 | (interactive "P") |
346 | ;;; (setq Buffer-menu-window-config (current-window-configuration)) | |
347 | (switch-to-buffer (list-buffers-noselect arg)) | |
348 | (message | |
349 | "Commands: d, s, x, u; f, o, 1, 2, m, v; ~, %%; q to quit; ? for help.")) | |
350 | ||
351 | (defun buffer-menu-other-window (&optional arg) | |
352 | "Display a list of buffers in another window. | |
353 | With the buffer list buffer, you can save, delete or select the buffers. | |
354 | With argument, show only buffers that are visiting files. | |
355 | Type ? after invocation to get help on commands available. | |
6a0d92d3 RS |
356 | Type q to remove the buffer menu from the display. |
357 | For more information, see the function `buffer-menu'." | |
2dd96f23 | 358 | (interactive "P") |
3ed788ec | 359 | ;;; (setq Buffer-menu-window-config (current-window-configuration)) |
08c82d4d | 360 | (switch-to-buffer-other-window (list-buffers-noselect arg)) |
2dd96f23 | 361 | (message |
3ed788ec RS |
362 | "Commands: d, s, x, u; f, o, 1, 2, m, v; ~, %%; q to quit; ? for help.")) |
363 | ||
bc7bb432 JB |
364 | (defun Buffer-menu-no-header () |
365 | (beginning-of-line) | |
366 | (if (or Buffer-menu-use-header-line | |
367 | (not (eq (char-after) ?C))) | |
368 | t | |
369 | (ding) | |
370 | (forward-line 1) | |
371 | nil)) | |
372 | ||
2dd96f23 JB |
373 | (defun Buffer-menu-mark () |
374 | "Mark buffer on this line for being displayed by \\<Buffer-menu-mode-map>\\[Buffer-menu-select] command." | |
375 | (interactive) | |
bc7bb432 | 376 | (when (Buffer-menu-no-header) |
70ef8857 | 377 | (let ((inhibit-read-only t)) |
2dd96f23 JB |
378 | (delete-char 1) |
379 | (insert ?>) | |
380 | (forward-line 1)))) | |
381 | ||
86dbbfc2 ER |
382 | (defun Buffer-menu-unmark (&optional backup) |
383 | "Cancel all requested operations on buffer on this line and move down. | |
bfa13d19 | 384 | Optional prefix arg means move up." |
86dbbfc2 | 385 | (interactive "P") |
bc7bb432 | 386 | (when (Buffer-menu-no-header) |
2dd96f23 JB |
387 | (let* ((buf (Buffer-menu-buffer t)) |
388 | (mod (buffer-modified-p buf)) | |
70ef8857 SM |
389 | (readonly (with-current-buffer buf buffer-read-only)) |
390 | (inhibit-read-only t)) | |
2dd96f23 | 391 | (delete-char 3) |
bc7bb432 | 392 | (insert (if readonly (if mod " %*" " % ") (if mod " *" " "))))) |
86dbbfc2 | 393 | (forward-line (if backup -1 1))) |
2dd96f23 JB |
394 | |
395 | (defun Buffer-menu-backup-unmark () | |
396 | "Move up and cancel all requested operations on buffer on line above." | |
397 | (interactive) | |
398 | (forward-line -1) | |
399 | (Buffer-menu-unmark) | |
400 | (forward-line -1)) | |
401 | ||
77a43e01 RS |
402 | (defun Buffer-menu-delete (&optional arg) |
403 | "Mark buffer on this line to be deleted by \\<Buffer-menu-mode-map>\\[Buffer-menu-execute] command. | |
404 | Prefix arg is how many buffers to delete. | |
405 | Negative arg means delete backwards." | |
406 | (interactive "p") | |
bc7bb432 | 407 | (when (Buffer-menu-no-header) |
70ef8857 | 408 | (let ((inhibit-read-only t)) |
77a43e01 RS |
409 | (if (or (null arg) (= arg 0)) |
410 | (setq arg 1)) | |
411 | (while (> arg 0) | |
412 | (delete-char 1) | |
413 | (insert ?D) | |
414 | (forward-line 1) | |
415 | (setq arg (1- arg))) | |
bc7bb432 JB |
416 | (while (and (< arg 0) |
417 | (Buffer-menu-no-header)) | |
77a43e01 RS |
418 | (delete-char 1) |
419 | (insert ?D) | |
420 | (forward-line -1) | |
421 | (setq arg (1+ arg)))))) | |
422 | ||
423 | (defun Buffer-menu-delete-backwards (&optional arg) | |
2dd96f23 | 424 | "Mark buffer on this line to be deleted by \\<Buffer-menu-mode-map>\\[Buffer-menu-execute] command |
77a43e01 RS |
425 | and then move up one line. Prefix arg means move that many lines." |
426 | (interactive "p") | |
bc7bb432 | 427 | (Buffer-menu-delete (- (or arg 1)))) |
2dd96f23 JB |
428 | |
429 | (defun Buffer-menu-save () | |
430 | "Mark buffer on this line to be saved by \\<Buffer-menu-mode-map>\\[Buffer-menu-execute] command." | |
431 | (interactive) | |
bc7bb432 | 432 | (when (Buffer-menu-no-header) |
70ef8857 | 433 | (let ((inhibit-read-only t)) |
bc7bb432 | 434 | (forward-char 2) |
2dd96f23 JB |
435 | (delete-char 1) |
436 | (insert ?S) | |
437 | (forward-line 1)))) | |
438 | ||
a8ce00dc | 439 | (defun Buffer-menu-not-modified (&optional arg) |
2dd96f23 | 440 | "Mark buffer on this line as unmodified (no changes to save)." |
a8ce00dc | 441 | (interactive "P") |
70ef8857 | 442 | (with-current-buffer (Buffer-menu-buffer t) |
a8ce00dc | 443 | (set-buffer-modified-p arg)) |
2dd96f23 JB |
444 | (save-excursion |
445 | (beginning-of-line) | |
bc7bb432 | 446 | (forward-char 2) |
bfa13d19 | 447 | (if (= (char-after) (if arg ?\s ?*)) |
70ef8857 | 448 | (let ((inhibit-read-only t)) |
2dd96f23 | 449 | (delete-char 1) |
bfa13d19 | 450 | (insert (if arg ?* ?\s)))))) |
2dd96f23 | 451 | |
bfb2dda4 DP |
452 | (defun Buffer-menu-beginning () |
453 | (goto-char (point-min)) | |
454 | (unless Buffer-menu-use-header-line | |
455 | (forward-line))) | |
456 | ||
2dd96f23 JB |
457 | (defun Buffer-menu-execute () |
458 | "Save and/or delete buffers marked with \\<Buffer-menu-mode-map>\\[Buffer-menu-save] or \\<Buffer-menu-mode-map>\\[Buffer-menu-delete] commands." | |
459 | (interactive) | |
460 | (save-excursion | |
bfb2dda4 | 461 | (Buffer-menu-beginning) |
bc7bb432 | 462 | (while (re-search-forward "^..S" nil t) |
2dd96f23 | 463 | (let ((modp nil)) |
70ef8857 | 464 | (with-current-buffer (Buffer-menu-buffer t) |
2dd96f23 JB |
465 | (save-buffer) |
466 | (setq modp (buffer-modified-p))) | |
70ef8857 | 467 | (let ((inhibit-read-only t)) |
2dd96f23 | 468 | (delete-char -1) |
bfa13d19 | 469 | (insert (if modp ?* ?\s)))))) |
2dd96f23 | 470 | (save-excursion |
bfb2dda4 | 471 | (Buffer-menu-beginning) |
2dd96f23 | 472 | (let ((buff-menu-buffer (current-buffer)) |
70ef8857 | 473 | (inhibit-read-only t)) |
4f1ab860 | 474 | (while (re-search-forward "^D" nil t) |
2dd96f23 JB |
475 | (forward-char -1) |
476 | (let ((buf (Buffer-menu-buffer nil))) | |
477 | (or (eq buf nil) | |
478 | (eq buf buff-menu-buffer) | |
601ed8a0 GM |
479 | (save-excursion (kill-buffer buf))) |
480 | (if (and buf (buffer-name buf)) | |
2dd96f23 | 481 | (progn (delete-char 1) |
bfa13d19 | 482 | (insert ?\s)) |
2dd96f23 | 483 | (delete-region (point) (progn (forward-line 1) (point))) |
4f1ab860 DL |
484 | (unless (bobp) |
485 | (forward-char -1)))))))) | |
2dd96f23 JB |
486 | |
487 | (defun Buffer-menu-select () | |
488 | "Select this line's buffer; also display buffers marked with `>'. | |
08c82d4d RS |
489 | You can mark buffers with the \\<Buffer-menu-mode-map>\\[Buffer-menu-mark] command. |
490 | This command deletes and replaces all the previously existing windows | |
491 | in the selected frame." | |
2dd96f23 JB |
492 | (interactive) |
493 | (let ((buff (Buffer-menu-buffer t)) | |
10e1dad9 | 494 | (menu (current-buffer)) |
2dd96f23 JB |
495 | (others ()) |
496 | tem) | |
bfb2dda4 | 497 | (Buffer-menu-beginning) |
a9fb4690 | 498 | (while (re-search-forward "^>" nil t) |
2dd96f23 | 499 | (setq tem (Buffer-menu-buffer t)) |
70ef8857 | 500 | (let ((inhibit-read-only t)) |
2dd96f23 | 501 | (delete-char -1) |
bfa13d19 | 502 | (insert ?\s)) |
2dd96f23 JB |
503 | (or (eq tem buff) (memq tem others) (setq others (cons tem others)))) |
504 | (setq others (nreverse others) | |
dc6d9681 | 505 | tem (/ (1- (frame-height)) (1+ (length others)))) |
2dd96f23 JB |
506 | (delete-other-windows) |
507 | (switch-to-buffer buff) | |
508 | (or (eq menu buff) | |
509 | (bury-buffer menu)) | |
86dbbfc2 ER |
510 | (if (equal (length others) 0) |
511 | (progn | |
3ed788ec RS |
512 | ;;; ;; Restore previous window configuration before displaying |
513 | ;;; ;; selected buffers. | |
514 | ;;; (if Buffer-menu-window-config | |
515 | ;;; (progn | |
516 | ;;; (set-window-configuration Buffer-menu-window-config) | |
517 | ;;; (setq Buffer-menu-window-config nil))) | |
86dbbfc2 ER |
518 | (switch-to-buffer buff)) |
519 | (while others | |
520 | (split-window nil tem) | |
521 | (other-window 1) | |
522 | (switch-to-buffer (car others)) | |
523 | (setq others (cdr others))) | |
524 | (other-window 1) ;back to the beginning! | |
525 | ))) | |
526 | ||
9cda680d JL |
527 | (defun Buffer-menu-marked-buffers () |
528 | "Return a list of buffers marked with the \\<Buffer-menu-mode-map>\\[Buffer-menu-mark] command." | |
529 | (let (buffers) | |
530 | (Buffer-menu-beginning) | |
531 | (while (re-search-forward "^>" nil t) | |
532 | (setq buffers (cons (Buffer-menu-buffer t) buffers))) | |
533 | (nreverse buffers))) | |
534 | ||
535 | (defun Buffer-menu-isearch-buffers () | |
536 | "Search for a string through all marked buffers using Isearch." | |
537 | (interactive) | |
538 | (multi-isearch-buffers (Buffer-menu-marked-buffers))) | |
539 | ||
540 | (defun Buffer-menu-isearch-buffers-regexp () | |
541 | "Search for a regexp through all marked buffers using Isearch." | |
542 | (interactive) | |
543 | (multi-isearch-buffers-regexp (Buffer-menu-marked-buffers))) | |
08c82d4d | 544 | |
2dd96f23 JB |
545 | \f |
546 | (defun Buffer-menu-visit-tags-table () | |
547 | "Visit the tags table in the buffer on this line. See `visit-tags-table'." | |
548 | (interactive) | |
549 | (let ((file (buffer-file-name (Buffer-menu-buffer t)))) | |
550 | (if file | |
551 | (visit-tags-table file) | |
552 | (error "Specified buffer has no file")))) | |
553 | ||
554 | (defun Buffer-menu-1-window () | |
dc6d9681 | 555 | "Select this line's buffer, alone, in full frame." |
2dd96f23 JB |
556 | (interactive) |
557 | (switch-to-buffer (Buffer-menu-buffer t)) | |
558 | (bury-buffer (other-buffer)) | |
559 | (delete-other-windows)) | |
560 | ||
2cf5fc7e RS |
561 | (defun Buffer-menu-mouse-select (event) |
562 | "Select the buffer whose line you click on." | |
563 | (interactive "e") | |
564 | (let (buffer) | |
70ef8857 | 565 | (with-current-buffer (window-buffer (posn-window (event-end event))) |
2cf5fc7e RS |
566 | (save-excursion |
567 | (goto-char (posn-point (event-end event))) | |
568 | (setq buffer (Buffer-menu-buffer t)))) | |
569 | (select-window (posn-window (event-end event))) | |
d953b88c RS |
570 | (if (and (window-dedicated-p (selected-window)) |
571 | (eq (selected-window) (frame-root-window))) | |
572 | (switch-to-buffer-other-frame buffer) | |
573 | (switch-to-buffer buffer)))) | |
2cf5fc7e | 574 | |
2dd96f23 JB |
575 | (defun Buffer-menu-this-window () |
576 | "Select this line's buffer in this window." | |
577 | (interactive) | |
578 | (switch-to-buffer (Buffer-menu-buffer t))) | |
579 | ||
580 | (defun Buffer-menu-other-window () | |
581 | "Select this line's buffer in other window, leaving buffer menu visible." | |
582 | (interactive) | |
583 | (switch-to-buffer-other-window (Buffer-menu-buffer t))) | |
584 | ||
35aaf00c RM |
585 | (defun Buffer-menu-switch-other-window () |
586 | "Make the other window select this line's buffer. | |
587 | The current window remains selected." | |
588 | (interactive) | |
3199b96f | 589 | (display-buffer (Buffer-menu-buffer t) t)) |
35aaf00c | 590 | |
2dd96f23 JB |
591 | (defun Buffer-menu-2-window () |
592 | "Select this line's buffer, with previous buffer in second window." | |
593 | (interactive) | |
594 | (let ((buff (Buffer-menu-buffer t)) | |
3199b96f | 595 | (menu (current-buffer))) |
86dbbfc2 | 596 | (delete-other-windows) |
2dd96f23 | 597 | (switch-to-buffer (other-buffer)) |
3199b96f | 598 | (switch-to-buffer-other-window buff) |
2dd96f23 | 599 | (bury-buffer menu))) |
c0274f38 | 600 | |
d91e2b1a | 601 | (defun Buffer-menu-toggle-read-only () |
f450965c | 602 | "Toggle read-only status of buffer on this line, perhaps via version control." |
d91e2b1a ER |
603 | (interactive) |
604 | (let (char) | |
70ef8857 SM |
605 | (with-current-buffer (Buffer-menu-buffer t) |
606 | (toggle-read-only) | |
bfa13d19 | 607 | (setq char (if buffer-read-only ?% ?\s))) |
d91e2b1a ER |
608 | (save-excursion |
609 | (beginning-of-line) | |
bc7bb432 | 610 | (forward-char 1) |
d91e2b1a | 611 | (if (/= (following-char) char) |
70ef8857 | 612 | (let ((inhibit-read-only t)) |
d91e2b1a ER |
613 | (delete-char 1) |
614 | (insert char)))))) | |
615 | ||
36570c92 RS |
616 | (defun Buffer-menu-bury () |
617 | "Bury the buffer listed on this line." | |
618 | (interactive) | |
bc7bb432 | 619 | (when (Buffer-menu-no-header) |
a59faabe RS |
620 | (save-excursion |
621 | (beginning-of-line) | |
622 | (bury-buffer (Buffer-menu-buffer t)) | |
623 | (let ((line (buffer-substring (point) (progn (forward-line 1) (point)))) | |
70ef8857 | 624 | (inhibit-read-only t)) |
a59faabe RS |
625 | (delete-region (point) (progn (forward-line -1) (point))) |
626 | (goto-char (point-max)) | |
627 | (insert line)) | |
628 | (message "Buried buffer moved to the end")))) | |
42a19c2a RS |
629 | |
630 | ||
631 | (defun Buffer-menu-view () | |
632 | "View this line's buffer in View mode." | |
633 | (interactive) | |
634 | (view-buffer (Buffer-menu-buffer t))) | |
635 | ||
636 | ||
637 | (defun Buffer-menu-view-other-window () | |
638 | "View this line's buffer in View mode in another window." | |
639 | (interactive) | |
640 | (view-buffer-other-window (Buffer-menu-buffer t))) | |
0b03ce3a RS |
641 | \f |
642 | ||
349b6bfe | 643 | ;;;###autoload |
0b03ce3a RS |
644 | (define-key ctl-x-map "\C-b" 'list-buffers) |
645 | ||
349b6bfe | 646 | ;;;###autoload |
0b03ce3a RS |
647 | (defun list-buffers (&optional files-only) |
648 | "Display a list of names of existing buffers. | |
649 | The list is displayed in a buffer named `*Buffer List*'. | |
650 | Note that buffers with names starting with spaces are omitted. | |
651 | Non-null optional arg FILES-ONLY means mention only file buffers. | |
652 | ||
6a0d92d3 | 653 | For more information, see the function `buffer-menu'." |
0b03ce3a | 654 | (interactive "P") |
08c82d4d RS |
655 | (display-buffer (list-buffers-noselect files-only))) |
656 | ||
e1ff8dd0 SM |
657 | (defconst Buffer-menu-short-ellipsis |
658 | ;; This file is preloaded, so we can't use char-displayable-p here | |
659 | ;; because we don't know yet what display we're going to connect to. | |
660 | ":" ;; (if (char-displayable-p ?…) "…" ":") | |
661 | ) | |
31e02fab | 662 | |
3e26a4a2 | 663 | (defun Buffer-menu-buffer+size (name size &optional name-props size-props) |
31e02fab SM |
664 | (if (> (+ (string-width name) (string-width size) 2) |
665 | Buffer-menu-buffer+size-width) | |
bc7bb432 | 666 | (setq name |
31e02fab SM |
667 | (let ((tail |
668 | (if (string-match "<[0-9]+>$" name) | |
669 | (match-string 0 name) | |
670 | ""))) | |
671 | (concat (truncate-string-to-width | |
672 | name | |
673 | (- Buffer-menu-buffer+size-width | |
674 | (max (string-width size) 3) | |
675 | (string-width tail) | |
676 | 2)) | |
677 | Buffer-menu-short-ellipsis | |
0c95fcf7 | 678 | tail))) |
ee5861c8 | 679 | ;; Don't put properties on (buffer-name). |
0c95fcf7 | 680 | (setq name (copy-sequence name))) |
bc7bb432 JB |
681 | (add-text-properties 0 (length name) name-props name) |
682 | (add-text-properties 0 (length size) size-props size) | |
d19e23ae CY |
683 | (let ((name+space-width (- Buffer-menu-buffer+size-width |
684 | (string-width size)))) | |
685 | (concat name | |
686 | (propertize (make-string (- name+space-width (string-width name)) | |
687 | ?\s) | |
4ac619f0 AA |
688 | 'display `(space :align-to |
689 | ,(+ Buffer-menu-buffer-column | |
690 | name+space-width))) | |
d19e23ae | 691 | size))) |
bc7bb432 | 692 | |
d5aacb46 SM |
693 | (defun Buffer-menu-sort (column) |
694 | "Sort the buffer menu by COLUMN." | |
695 | (interactive "P") | |
696 | (when column | |
697 | (setq column (prefix-numeric-value column)) | |
698 | (if (< column 2) (setq column 2)) | |
699 | (if (> column 5) (setq column 5))) | |
700 | (setq Buffer-menu-sort-column column) | |
70ef8857 | 701 | (let ((inhibit-read-only t) l buf m1 m2) |
bfb2dda4 DP |
702 | (save-excursion |
703 | (Buffer-menu-beginning) | |
704 | (while (not (eobp)) | |
60ed8c72 AA |
705 | (when (buffer-live-p |
706 | (setq buf (get-text-property | |
707 | (+ (point) | |
708 | Buffer-menu-buffer-column) | |
709 | 'buffer))) | |
bfb2dda4 DP |
710 | (setq m1 (char-after) |
711 | m1 (if (memq m1 '(?> ?D)) m1) | |
712 | m2 (char-after (+ (point) 2)) | |
713 | m2 (if (eq m2 ?S) m2)) | |
714 | (if (or m1 m2) | |
715 | (push (list buf m1 m2) l))) | |
716 | (forward-line))) | |
52a0198d | 717 | (revert-buffer) |
bfb2dda4 DP |
718 | (save-excursion |
719 | (Buffer-menu-beginning) | |
720 | (while (not (eobp)) | |
60ed8c72 AA |
721 | (when (setq buf (assq (get-text-property (+ (point) |
722 | Buffer-menu-buffer-column) | |
723 | 'buffer) l)) | |
bfb2dda4 DP |
724 | (setq m1 (cadr buf) |
725 | m2 (cadr (cdr buf))) | |
726 | (when m1 | |
727 | (delete-char 1) | |
728 | (insert m1) | |
729 | (backward-char 1)) | |
730 | (when m2 | |
731 | (forward-char 2) | |
732 | (delete-char 1) | |
733 | (insert m2))) | |
734 | (forward-line))))) | |
d5aacb46 | 735 | |
104fc809 CY |
736 | (defun Buffer-menu-sort-by-column (&optional e) |
737 | "Sort the buffer menu by the column clicked on." | |
738 | (interactive (list last-input-event)) | |
739 | (if e (mouse-select-window e)) | |
740 | (let* ((pos (event-start e)) | |
741 | (obj (posn-object pos)) | |
742 | (col (if obj | |
743 | (get-text-property (cdr obj) 'column (car obj)) | |
744 | (get-text-property (posn-point pos) 'column)))) | |
745 | (Buffer-menu-sort col))) | |
746 | ||
747 | (defvar Buffer-menu-sort-button-map | |
748 | (let ((map (make-sparse-keymap))) | |
749 | ;; This keymap handles both nil and non-nil values for | |
750 | ;; Buffer-menu-use-header-line. | |
751 | (define-key map [header-line mouse-1] 'Buffer-menu-sort-by-column) | |
752 | (define-key map [header-line mouse-2] 'Buffer-menu-sort-by-column) | |
753 | (define-key map [mouse-2] 'Buffer-menu-sort-by-column) | |
754 | (define-key map [follow-link] 'mouse-face) | |
755 | (define-key map "\C-m" 'Buffer-menu-sort-by-column) | |
756 | map) | |
757 | "Local keymap for Buffer menu sort buttons.") | |
758 | ||
d5aacb46 SM |
759 | (defun Buffer-menu-make-sort-button (name column) |
760 | (if (equal column Buffer-menu-sort-column) (setq column nil)) | |
104fc809 CY |
761 | (propertize name |
762 | 'column column | |
763 | 'help-echo (concat | |
764 | (if Buffer-menu-use-header-line | |
765 | "mouse-1, mouse-2: sort by " | |
766 | "mouse-2, RET: sort by ") | |
767 | (if column (downcase name) "visited order")) | |
768 | 'mouse-face 'highlight | |
769 | 'keymap Buffer-menu-sort-button-map)) | |
d5aacb46 | 770 | |
61617913 | 771 | (defun list-buffers-noselect (&optional files-only buffer-list) |
08c82d4d RS |
772 | "Create and return a buffer with a list of names of existing buffers. |
773 | The buffer is named `*Buffer List*'. | |
774 | Note that buffers with names starting with spaces are omitted. | |
775 | Non-null optional arg FILES-ONLY means mention only file buffers. | |
776 | ||
61617913 RS |
777 | If BUFFER-LIST is non-nil, it should be a list of buffers; |
778 | it means list those buffers and no others. | |
779 | ||
6a0d92d3 | 780 | For more information, see the function `buffer-menu'." |
bc7bb432 JB |
781 | (let* ((old-buffer (current-buffer)) |
782 | (standard-output standard-output) | |
bfa13d19 | 783 | (mode-end (make-string (- Buffer-menu-mode-width 2) ?\s)) |
5e684428 | 784 | (header (concat "CRM " |
d5aacb46 SM |
785 | (Buffer-menu-buffer+size |
786 | (Buffer-menu-make-sort-button "Buffer" 2) | |
787 | (Buffer-menu-make-sort-button "Size" 3)) | |
788 | " " | |
789 | (Buffer-menu-make-sort-button "Mode" 4) mode-end | |
790 | (Buffer-menu-make-sort-button "File" 5) "\n")) | |
f4872033 | 791 | list desired-point) |
748a336b | 792 | (when Buffer-menu-use-header-line |
d5aacb46 | 793 | (let ((pos 0)) |
fff861a2 JB |
794 | ;; Turn whitespace chars in the header into stretch specs so |
795 | ;; they work regardless of the header-line face. | |
796 | (while (string-match "[ \t\n]+" header pos) | |
748a336b SM |
797 | (setq pos (match-end 0)) |
798 | (put-text-property (match-beginning 0) pos 'display | |
5e684428 | 799 | ;; Assume fixed-size chars in the buffer. |
6d3bce2b | 800 | (list 'space :align-to pos) |
5e684428 SM |
801 | header))) |
802 | ;; Try to better align the one-char headers. | |
803 | (put-text-property 0 3 'face 'fixed-pitch header) | |
804 | ;; Add a "dummy" leading space to align the beginning of the header | |
805 | ;; line with the beginning of the text (rather than with the left | |
c822571a | 806 | ;; scrollbar or the left fringe). --Stef |
5e684428 | 807 | (setq header (concat (propertize " " 'display '(space :align-to 0)) |
a6a2fd5e | 808 | header))) |
d5aacb46 | 809 | (with-current-buffer (get-buffer-create "*Buffer List*") |
08c82d4d RS |
810 | (setq buffer-read-only nil) |
811 | (erase-buffer) | |
812 | (setq standard-output (current-buffer)) | |
acb28818 | 813 | ;; Force L2R direction, to avoid messing the display if the |
7e2ad32c | 814 | ;; first buffer in the list happens to begin with a strong R2L |
acb28818 EZ |
815 | ;; character. |
816 | (setq bidi-paragraph-direction 'left-to-right) | |
bc7bb432 | 817 | (unless Buffer-menu-use-header-line |
c822571a SM |
818 | ;; Use U+2014 (EM DASH) to underline if possible, else use ASCII |
819 | ;; (i.e. U+002D, HYPHEN-MINUS). | |
820 | (let ((underline (if (char-displayable-p ?\u2014) ?\u2014 ?-))) | |
5e684428 SM |
821 | (insert header |
822 | (apply 'string | |
823 | (mapcar (lambda (c) | |
bfa13d19 | 824 | (if (memq c '(?\n ?\s)) c underline)) |
5e684428 | 825 | header))))) |
a6a2fd5e | 826 | ;; Collect info for every buffer we're interested in. |
3ce5f932 LT |
827 | (dolist (buffer (or buffer-list |
828 | (buffer-list | |
829 | (when Buffer-menu-use-frame-buffer-list | |
830 | (selected-frame))))) | |
a6a2fd5e JL |
831 | (with-current-buffer buffer |
832 | (let ((name (buffer-name)) | |
833 | (file buffer-file-name)) | |
834 | (unless (and (not buffer-list) | |
835 | (or | |
836 | ;; Don't mention internal buffers. | |
837 | (and (string= (substring name 0 1) " ") (null file)) | |
838 | ;; Maybe don't mention buffers without files. | |
839 | (and files-only (not file)) | |
840 | (string= name "*Buffer List*"))) | |
841 | ;; Otherwise output info. | |
842 | (let ((mode (concat (format-mode-line mode-name nil nil buffer) | |
843 | (if mode-line-process | |
844 | (format-mode-line mode-line-process | |
845 | nil nil buffer)))) | |
846 | (bits (string | |
bfa13d19 | 847 | (if (eq buffer old-buffer) ?. ?\s) |
a6a2fd5e JL |
848 | ;; Handle readonly status. The output buffer |
849 | ;; is special cased to appear readonly; it is | |
850 | ;; actually made so at a later date. | |
851 | (if (or (eq buffer standard-output) | |
852 | buffer-read-only) | |
bfa13d19 | 853 | ?% ?\s) |
a6a2fd5e | 854 | ;; Identify modified buffers. |
bfa13d19 | 855 | (if (buffer-modified-p) ?* ?\s) |
a6a2fd5e | 856 | ;; Space separator. |
bfa13d19 | 857 | ?\s))) |
a6a2fd5e JL |
858 | (unless file |
859 | ;; No visited file. Check local value of | |
fb5614e8 EZ |
860 | ;; list-buffers-directory and, for Info buffers, |
861 | ;; Info-current-file. | |
862 | (cond ((and (boundp 'list-buffers-directory) | |
863 | list-buffers-directory) | |
864 | (setq file list-buffers-directory)) | |
865 | ((eq major-mode 'Info-mode) | |
866 | (setq file Info-current-file) | |
867 | (cond | |
26f544d3 | 868 | ((equal file "dir") |
fb5614e8 EZ |
869 | (setq file "*Info Directory*")) |
870 | ((eq file 'apropos) | |
871 | (setq file "*Info Apropos*")) | |
872 | ((eq file 'history) | |
873 | (setq file "*Info History*")) | |
874 | ((eq file 'toc) | |
875 | (setq file "*Info TOC*")) | |
876 | ((not (stringp file)) ;; avoid errors | |
b653cee4 EZ |
877 | (setq file nil)) |
878 | (t | |
879 | (setq file (concat "(" | |
880 | (file-name-nondirectory file) | |
9cda680d | 881 | ") " |
b653cee4 | 882 | Info-current-node))))))) |
a6a2fd5e JL |
883 | (push (list buffer bits name (buffer-size) mode file) |
884 | list)))))) | |
885 | ;; Preserve the original buffer-list ordering, just in case. | |
886 | (setq list (nreverse list)) | |
f4872033 | 887 | ;; Place the buffers's info in the output buffer, sorted if necessary. |
bc7bb432 JB |
888 | (dolist (buffer |
889 | (if Buffer-menu-sort-column | |
890 | (sort list | |
891 | (if (eq Buffer-menu-sort-column 3) | |
892 | (lambda (a b) | |
893 | (< (nth Buffer-menu-sort-column a) | |
894 | (nth Buffer-menu-sort-column b))) | |
895 | (lambda (a b) | |
896 | (string< (nth Buffer-menu-sort-column a) | |
897 | (nth Buffer-menu-sort-column b))))) | |
898 | list)) | |
899 | (if (eq (car buffer) old-buffer) | |
900 | (setq desired-point (point))) | |
901 | (insert (cadr buffer) | |
902 | ;; Put the buffer name into a text property | |
903 | ;; so we don't have to extract it from the text. | |
904 | ;; This way we avoid problems with unusual buffer names. | |
392640c4 NR |
905 | (let ((name (nth 2 buffer)) |
906 | (size (int-to-string (nth 3 buffer)))) | |
d19e23ae | 907 | (Buffer-menu-buffer+size name size |
392640c4 NR |
908 | `(buffer-name ,name |
909 | buffer ,(car buffer) | |
910 | font-lock-face buffer-menu-buffer | |
911 | mouse-face highlight | |
9201cc28 | 912 | help-echo |
392640c4 NR |
913 | ,(if (>= (length name) |
914 | (- Buffer-menu-buffer+size-width | |
915 | (max (length size) 3) | |
916 | 2)) | |
917 | name | |
3e26a4a2 | 918 | "mouse-2: select this buffer")))) |
a3e5a603 SM |
919 | " " |
920 | (if (> (string-width (nth 4 buffer)) Buffer-menu-mode-width) | |
921 | (truncate-string-to-width (nth 4 buffer) | |
31e02fab | 922 | Buffer-menu-mode-width) |
bc7bb432 JB |
923 | (nth 4 buffer))) |
924 | (when (nth 5 buffer) | |
925 | (indent-to (+ Buffer-menu-buffer-column Buffer-menu-buffer+size-width | |
926 | Buffer-menu-mode-width 4) 1) | |
927 | (princ (abbreviate-file-name (nth 5 buffer)))) | |
928 | (princ "\n")) | |
0b03ce3a | 929 | (Buffer-menu-mode) |
bc7bb432 | 930 | (when Buffer-menu-use-header-line |
748a336b | 931 | (setq header-line-format header)) |
08c82d4d RS |
932 | ;; DESIRED-POINT doesn't have to be set; it is not when the |
933 | ;; current buffer is not displayed for some reason. | |
0b03ce3a | 934 | (and desired-point |
08c82d4d | 935 | (goto-char desired-point)) |
7b0a86ab | 936 | (setq Buffer-menu-files-only files-only) |
362b9d48 | 937 | (setq Buffer-menu--buffers buffer-list) |
7b0a86ab | 938 | (set-buffer-modified-p nil) |
08c82d4d | 939 | (current-buffer)))) |
0b03ce3a | 940 | |
c0274f38 | 941 | ;;; buff-menu.el ends here |