Mercurial > hg > xemacs-beta
annotate lisp/buff-menu.el @ 5368:ed74d2ca7082
Use ', not #', when a given symbol may not have a function binding at read time
2011-03-10 Aidan Kehoe <kehoea@parhasard.net>
* cmdloop.el (yes-or-no-p):
* cmdloop.el (y-or-n-p):
* descr-text.el (describe-char):
* diagnose.el (show-memory-usage):
* diagnose.el (show-object-memory-usage-stats):
* diagnose.el (show-mc-alloc-memory-usage):
* diagnose.el (show-gc-stats):
* faces.el (face-font-instance):
* gtk-font-menu.el (gtk-reset-device-font-menus):
* help.el (help-symbol-function-context-menu):
* help.el (help-symbol-variable-context-menu):
* help.el (help-symbol-function-and-variable-context-menu):
* help.el (help-find-source-or-scroll-up):
* help.el (help-mouse-find-source-or-track):
* help.el (temp-buffer-resize-mode):
* minibuf.el (mouse-read-file-name-1):
* obsolete.el (find-non-ascii-charset-string):
* obsolete.el (find-non-ascii-charset-region):
* occur.el (occur-engine):
* paragraphs.el (forward-paragraph):
* paragraphs.el (forward-sentence):
* select.el (activate-region-as-selection):
* select.el (select-make-extent-for-selection):
* simple.el (zmacs-make-extent-for-region):
Use quote, not function, for quoting symbols that may not be
fboundp at the point they are read (again, a style issue, since
Common Lisp throws an error on this, but we don't, and have no
plans to.)
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Thu, 10 Mar 2011 18:51:15 +0000 |
| parents | f00192e1cd49 |
| children | ac37a5f7e5be |
| rev | line source |
|---|---|
| 771 | 1 ;;; buff-menu.el --- buffer menu/tab main function and support functions. |
| 428 | 2 |
| 3 ;; Copyright (C) 1985, 86, 87, 93, 94, 95 Free Software Foundation, Inc. | |
| 771 | 4 ;; Copyright (C) 1999, 2000 Andy Piper. |
| 5 ;; Copyright (C) 2000 Ben Wing. | |
| 428 | 6 |
| 771 | 7 ;; Maintainer: XEmacs Development Team |
| 8 ;; Keywords: frames, extensions, internal, dumped | |
| 428 | 9 |
| 10 ;; This file is part of XEmacs. | |
| 11 | |
| 12 ;; XEmacs is free software; you can redistribute it and/or modify it | |
| 13 ;; under the terms of the GNU General Public License as published by | |
| 14 ;; the Free Software Foundation; either version 2, or (at your option) | |
| 15 ;; any later version. | |
| 16 | |
| 17 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 20 ;; General Public License for more details. | |
| 21 | |
| 22 ;; You should have received a copy of the GNU General Public License | |
| 23 ;; along with XEmacs; see the file COPYING. If not, write to the Free | |
| 24 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 25 ;; 02111-1307, USA. | |
| 26 | |
| 27 ;;; Synched up with: FSF 19.34 except as noted. | |
| 28 | |
| 29 ;;; Commentary: | |
| 30 | |
| 31 ;; This file is dumped with XEmacs. | |
| 32 | |
| 33 ;; Edit, delete, or change attributes of all currently active Emacs | |
| 34 ;; buffers from a list summarizing their state. A good way to browse | |
| 35 ;; any special or scratch buffers you have loaded, since you can't find | |
| 36 ;; them by filename. The single entry point is `Buffer-menu-mode', | |
| 37 ;; normally bound to C-x C-b. | |
| 38 | |
| 771 | 39 ;; Also contains buffers-tab code, because it's used by |
| 40 ;; switch-to-next-buffer and friends. | |
| 41 | |
| 428 | 42 ;;; Change Log: |
| 43 | |
| 44 ;; Merged by esr with recent mods to Emacs 19 buff-menu, 23 Mar 1993 | |
| 45 ;; | |
| 46 ;; Modified by Bob Weiner, Motorola, Inc., 4/14/89 | |
| 47 ;; | |
| 48 ;; Added optional backup argument to 'Buffer-menu-unmark' to make it undelete | |
| 49 ;; current entry and then move to previous one. | |
| 50 ;; | |
| 51 ;; Based on FSF code dating back to 1985. | |
| 52 | |
| 53 ;;; Code: | |
| 444 | 54 |
| 428 | 55 ;;;Trying to preserve the old window configuration works well in |
| 56 ;;;simple scenarios, when you enter the buffer menu, use it, and exit it. | |
| 57 ;;;But it does strange things when you switch back to the buffer list buffer | |
| 58 ;;;with C-x b, later on, when the window configuration is different. | |
| 59 ;;;The choice seems to be, either restore the window configuration | |
| 60 ;;;in all cases, or in no cases. | |
| 61 ;;;I decided it was better not to restore the window config at all. -- rms. | |
| 62 | |
| 63 ;;;But since then, I changed buffer-menu to use the selected window, | |
| 64 ;;;so q now once again goes back to the previous window configuration. | |
| 65 | |
| 66 ;;;(defvar Buffer-menu-window-config nil | |
| 67 ;;; "Window configuration saved from entry to `buffer-menu'.") | |
| 68 | |
| 69 ; Put buffer *Buffer List* into proper mode right away | |
| 70 ; so that from now on even list-buffers is enough to get a buffer menu. | |
| 71 | |
| 72 (defvar Buffer-menu-buffer-column 4) | |
| 73 | |
| 74 (defvar Buffer-menu-mode-map nil) | |
| 75 | |
| 76 (if Buffer-menu-mode-map | |
| 77 () | |
| 78 (setq Buffer-menu-mode-map (make-keymap)) | |
| 79 (suppress-keymap Buffer-menu-mode-map t) | |
| 80 (set-keymap-name Buffer-menu-mode-map 'Buffer-menu-mode-map) ; XEmacs | |
| 81 (define-key Buffer-menu-mode-map "q" 'Buffer-menu-quit) | |
| 82 (define-key Buffer-menu-mode-map "v" 'Buffer-menu-select) | |
| 83 (define-key Buffer-menu-mode-map "2" 'Buffer-menu-2-window) | |
| 84 (define-key Buffer-menu-mode-map "1" 'Buffer-menu-1-window) | |
| 85 (define-key Buffer-menu-mode-map "f" 'Buffer-menu-this-window) | |
| 86 (define-key Buffer-menu-mode-map "\C-m" 'Buffer-menu-this-window) | |
| 87 (define-key Buffer-menu-mode-map "o" 'Buffer-menu-other-window) | |
| 88 (define-key Buffer-menu-mode-map "\C-o" 'Buffer-menu-switch-other-window) | |
| 89 (define-key Buffer-menu-mode-map "s" 'Buffer-menu-save) | |
| 90 (define-key Buffer-menu-mode-map "d" 'Buffer-menu-delete) | |
| 91 (define-key Buffer-menu-mode-map "k" 'Buffer-menu-delete) | |
| 92 (define-key Buffer-menu-mode-map "\C-d" 'Buffer-menu-delete-backwards) | |
| 93 (define-key Buffer-menu-mode-map "\C-k" 'Buffer-menu-delete) | |
| 3162 | 94 (define-key Buffer-menu-mode-map "r" 'Buffer-menu-rename) |
| 428 | 95 (define-key Buffer-menu-mode-map "x" 'Buffer-menu-execute) |
| 96 (define-key Buffer-menu-mode-map " " 'next-line) | |
| 97 (define-key Buffer-menu-mode-map "n" 'next-line) | |
| 98 (define-key Buffer-menu-mode-map "p" 'previous-line) | |
| 99 (define-key Buffer-menu-mode-map 'backspace 'Buffer-menu-backup-unmark) | |
| 100 (define-key Buffer-menu-mode-map 'delete 'Buffer-menu-backup-unmark) | |
| 101 (define-key Buffer-menu-mode-map "~" 'Buffer-menu-not-modified) | |
| 102 (define-key Buffer-menu-mode-map "?" 'describe-mode) | |
| 103 (define-key Buffer-menu-mode-map "u" 'Buffer-menu-unmark) | |
| 104 (define-key Buffer-menu-mode-map "m" 'Buffer-menu-mark) | |
| 105 (define-key Buffer-menu-mode-map "t" 'Buffer-menu-visit-tags-table) | |
| 106 (define-key Buffer-menu-mode-map "%" 'Buffer-menu-toggle-read-only) | |
| 107 (define-key Buffer-menu-mode-map "g" 'revert-buffer) | |
| 108 (define-key Buffer-menu-mode-map 'button2 'Buffer-menu-mouse-select) | |
| 109 (define-key Buffer-menu-mode-map 'button3 'Buffer-menu-popup-menu) | |
| 110 ) | |
| 111 | |
| 112 ;; Buffer Menu mode is suitable only for specially formatted data. | |
| 113 (put 'Buffer-menu-mode 'mode-class 'special) | |
| 114 | |
| 115 (defun Buffer-menu-mode () | |
| 116 "Major mode for editing a list of buffers. | |
| 117 Each line describes one of the buffers in Emacs. | |
| 118 Letters do not insert themselves; instead, they are commands. | |
| 119 \\<Buffer-menu-mode-map> | |
| 120 \\[Buffer-menu-mouse-select] -- select buffer you click on, in place of the buffer menu. | |
| 121 \\[Buffer-menu-this-window] -- select current line's buffer in place of the buffer menu. | |
| 122 \\[Buffer-menu-other-window] -- select that buffer in another window, | |
| 123 so the buffer menu buffer remains visible in its window. | |
| 124 \\[Buffer-menu-switch-other-window] -- make another window display that buffer. | |
| 125 \\[Buffer-menu-mark] -- mark current line's buffer to be displayed. | |
| 126 \\[Buffer-menu-select] -- select current line's buffer. | |
| 127 Also show buffers marked with m, in other windows. | |
| 128 \\[Buffer-menu-1-window] -- select that buffer in full-frame window. | |
| 129 \\[Buffer-menu-2-window] -- select that buffer in one window, | |
| 130 together with buffer selected before this one in another window. | |
| 131 \\[Buffer-menu-visit-tags-table] -- visit-tags-table this buffer. | |
| 132 \\[Buffer-menu-not-modified] -- clear modified-flag on that buffer. | |
| 133 \\[Buffer-menu-save] -- mark that buffer to be saved, and move down. | |
| 134 \\[Buffer-menu-delete] -- mark that buffer to be deleted, and move down. | |
| 135 \\[Buffer-menu-delete-backwards] -- mark that buffer to be deleted, and move up. | |
| 136 \\[Buffer-menu-execute] -- delete or save marked buffers. | |
| 137 \\[Buffer-menu-unmark] -- remove all kinds of marks from current line. | |
| 138 With prefix argument, also move up one line. | |
| 139 \\[Buffer-menu-backup-unmark] -- back up a line and remove marks. | |
| 140 \\[Buffer-menu-toggle-read-only] -- toggle read-only status of buffer on this line." | |
| 141 (kill-all-local-variables) | |
| 142 (use-local-map Buffer-menu-mode-map) | |
| 143 (setq major-mode 'Buffer-menu-mode) | |
| 144 (setq mode-name "Buffer Menu") | |
| 145 (make-local-variable 'revert-buffer-function) | |
| 146 (setq revert-buffer-function 'Buffer-menu-revert-function) | |
| 147 (setq truncate-lines t) | |
| 148 (setq buffer-read-only t) | |
| 548 | 149 (make-local-hook 'mouse-track-click-hook) ; XEmacs |
| 150 (add-hook 'mouse-track-click-hook 'Buffer-menu-maybe-mouse-select t t) ; XEmacs | |
| 428 | 151 (run-hooks 'buffer-menu-mode-hook)) |
| 152 | |
| 153 (defun Buffer-menu-revert-function (ignore1 ignore2) | |
| 154 (list-buffers)) | |
| 155 | |
| 156 (defun Buffer-menu-buffer (error-if-non-existent-p) | |
| 157 "Return buffer described by this line of buffer menu." | |
| 158 (let* ((where (save-excursion | |
| 159 (beginning-of-line) | |
| 160 (+ (point) Buffer-menu-buffer-column))) | |
| 161 (name (and (not (eobp)) (get-text-property where 'buffer-name)))) | |
| 162 (if name | |
| 163 (or (get-buffer name) | |
| 164 (if error-if-non-existent-p | |
| 165 (error "No buffer named `%s'" name) | |
| 166 nil)) | |
| 167 (if error-if-non-existent-p | |
| 168 (error "No buffer on this line") | |
| 169 nil)))) | |
| 170 | |
| 171 (defun buffer-menu (&optional arg) | |
| 172 "Make a menu of buffers so you can save, delete or select them. | |
| 173 With argument, show only buffers that are visiting files. | |
| 174 Type ? after invocation to get help on commands available. | |
| 175 Type q immediately to make the buffer menu go away." | |
| 176 (interactive "P") | |
| 177 ;;; (setq Buffer-menu-window-config (current-window-configuration)) | |
| 178 (switch-to-buffer (list-buffers-noselect arg)) | |
| 179 (message | |
| 180 "Commands: d, s, x, u; f, o, 1, 2, m, v; ~, %%; q to quit; ? for help.")) | |
| 181 | |
| 182 (defun buffer-menu-other-window (&optional arg) | |
| 183 "Display a list of buffers in another window. | |
| 184 With the buffer list buffer, you can save, delete or select the buffers. | |
| 185 With argument, show only buffers that are visiting files. | |
| 186 Type ? after invocation to get help on commands available. | |
| 187 Type q immediately to make the buffer menu go away." | |
| 188 (interactive "P") | |
| 189 ;;; (setq Buffer-menu-window-config (current-window-configuration)) | |
| 190 (switch-to-buffer-other-window (list-buffers-noselect arg)) | |
| 191 (message | |
| 192 "Commands: d, s, x, u; f, o, 1, 2, m, v; ~, %%; q to quit; ? for help.")) | |
| 193 | |
| 194 (defun Buffer-menu-quit () | |
| 195 "Quit the buffer menu." | |
| 196 (interactive) | |
| 197 (let ((buffer (current-buffer))) | |
| 198 ;; Switch away from the buffer menu and bury it. | |
| 199 (switch-to-buffer (other-buffer)) | |
| 200 (bury-buffer buffer))) | |
| 201 | |
| 202 (defun Buffer-menu-mark () | |
| 203 "Mark buffer on this line for being displayed by \\<Buffer-menu-mode-map>\\[Buffer-menu-select] command." | |
| 204 (interactive) | |
| 205 (beginning-of-line) | |
| 206 (if (looking-at " [-M]") | |
| 207 (ding) | |
| 208 (let ((buffer-read-only nil)) | |
| 209 (delete-char 1) | |
| 210 (insert ?>) | |
| 211 (forward-line 1)))) | |
| 212 | |
| 213 (defun Buffer-menu-unmark (&optional backup) | |
| 214 "Cancel all requested operations on buffer on this line and move down. | |
| 215 Optional ARG means move up." | |
| 216 (interactive "P") | |
| 217 (beginning-of-line) | |
| 218 (if (looking-at " [-M]") | |
| 219 (ding) | |
| 220 (let* ((buf (Buffer-menu-buffer t)) | |
| 221 (mod (buffer-modified-p buf)) | |
| 222 (readonly (save-excursion (set-buffer buf) buffer-read-only)) | |
| 223 (buffer-read-only nil)) | |
| 224 (delete-char 3) | |
| 225 (insert (if readonly (if mod " *%" " %") (if mod " * " " "))))) | |
| 226 (forward-line (if backup -1 1))) | |
| 227 | |
| 228 (defun Buffer-menu-backup-unmark () | |
| 229 "Move up and cancel all requested operations on buffer on line above." | |
| 230 (interactive) | |
| 231 (forward-line -1) | |
| 232 (Buffer-menu-unmark) | |
| 233 (forward-line -1)) | |
| 234 | |
| 235 (defun Buffer-menu-delete (&optional arg) | |
| 236 "Mark buffer on this line to be deleted by \\<Buffer-menu-mode-map>\\[Buffer-menu-execute] command. | |
| 237 Prefix arg is how many buffers to delete. | |
| 238 Negative arg means delete backwards." | |
| 239 (interactive "p") | |
| 240 (beginning-of-line) | |
| 241 (if (looking-at " [-M]") ;header lines | |
| 242 (ding) | |
| 243 (let ((buffer-read-only nil)) | |
| 244 (if (or (null arg) (= arg 0)) | |
| 245 (setq arg 1)) | |
| 246 (while (> arg 0) | |
| 247 (delete-char 1) | |
| 248 (insert ?D) | |
| 249 (forward-line 1) | |
| 250 (setq arg (1- arg))) | |
| 251 (while (< arg 0) | |
| 252 (delete-char 1) | |
| 253 (insert ?D) | |
| 254 (forward-line -1) | |
| 255 (setq arg (1+ arg)))))) | |
| 256 | |
| 257 (defun Buffer-menu-delete-backwards (&optional arg) | |
| 258 "Mark buffer on this line to be deleted by \\<Buffer-menu-mode-map>\\[Buffer-menu-execute] command | |
| 259 and then move up one line. Prefix arg means move that many lines." | |
| 260 (interactive "p") | |
| 261 (Buffer-menu-delete (- (or arg 1))) | |
| 262 (while (looking-at " [-M]") | |
| 263 (forward-line 1))) | |
| 264 | |
| 3162 | 265 (defun Buffer-menu-rename (newname unique) |
| 266 "Rename buffer on this line to NEWNAME, immediately. | |
| 267 If given a prefix argument, automatically uniquify. See `rename-buffer'." | |
| 268 (interactive "sNew name for buffer: \np") | |
| 269 (beginning-of-line) | |
| 270 (if (looking-at " [-M]") ;header lines | |
| 271 (ding) | |
| 272 (save-excursion | |
| 273 (set-buffer (Buffer-menu-buffer t)) | |
| 274 (rename-buffer newname unique)) | |
| 275 (revert-buffer))) | |
| 276 | |
| 428 | 277 (defun Buffer-menu-save () |
| 278 "Mark buffer on this line to be saved by \\<Buffer-menu-mode-map>\\[Buffer-menu-execute] command." | |
| 279 (interactive) | |
| 280 (beginning-of-line) | |
| 281 (if (looking-at " [-M]") ;header lines | |
| 282 (ding) | |
| 283 (let ((buffer-read-only nil)) | |
| 284 (forward-char 1) | |
| 285 (delete-char 1) | |
| 286 (insert ?S) | |
| 287 (forward-line 1)))) | |
| 288 | |
| 289 (defun Buffer-menu-not-modified (&optional arg) | |
| 290 "Mark buffer on this line as unmodified (no changes to save)." | |
| 291 (interactive "P") | |
| 292 (save-excursion | |
| 293 (set-buffer (Buffer-menu-buffer t)) | |
| 294 (set-buffer-modified-p arg)) | |
| 295 (save-excursion | |
| 296 (beginning-of-line) | |
| 297 (forward-char 1) | |
| 298 (if (= (char-after (point)) (if arg ? ?*)) | |
| 299 (let ((buffer-read-only nil)) | |
| 300 (delete-char 1) | |
| 301 (insert (if arg ?* ? )))))) | |
| 302 | |
| 303 (defun Buffer-menu-execute () | |
| 304 "Save and/or delete buffers marked with \\<Buffer-menu-mode-map>\\[Buffer-menu-save] or \\<Buffer-menu-mode-map>\\[Buffer-menu-delete] commands." | |
| 305 (interactive) | |
| 306 (save-excursion | |
| 307 (goto-char (point-min)) | |
| 308 (forward-line 1) | |
| 309 (while (re-search-forward "^.S" nil t) | |
| 310 (let ((modp nil)) | |
| 311 (save-excursion | |
| 312 (set-buffer (Buffer-menu-buffer t)) | |
| 313 (save-buffer) | |
| 314 (setq modp (buffer-modified-p))) | |
| 315 (let ((buffer-read-only nil)) | |
| 316 (delete-char -1) | |
| 317 (insert (if modp ?* ? )))))) | |
| 318 (save-excursion | |
| 319 (goto-char (point-min)) | |
| 320 (forward-line 1) | |
| 321 (let ((buff-menu-buffer (current-buffer)) | |
| 322 (buffer-read-only nil)) | |
| 323 (while (search-forward "\nD" nil t) | |
| 446 | 324 (backward-char 1) |
| 428 | 325 (let ((buf (Buffer-menu-buffer nil))) |
| 326 (or (eq buf nil) | |
| 327 (eq buf buff-menu-buffer) | |
| 328 (save-excursion (kill-buffer buf)))) | |
| 329 (if (Buffer-menu-buffer nil) | |
| 330 (progn (delete-char 1) | |
| 331 (insert ? )) | |
| 332 (delete-region (point) (progn (forward-line 1) (point))) | |
| 446 | 333 (backward-char 1)))))) |
| 428 | 334 |
| 335 (defun Buffer-menu-select () | |
| 336 "Select this line's buffer; also display buffers marked with `>'. | |
| 337 You can mark buffers with the \\<Buffer-menu-mode-map>\\[Buffer-menu-mark] command. | |
| 338 This command deletes and replaces all the previously existing windows | |
| 339 in the selected frame." | |
| 340 (interactive) | |
| 341 (let ((buff (Buffer-menu-buffer t)) | |
| 444 | 342 (menu (current-buffer)) |
| 428 | 343 (others ()) |
| 344 tem) | |
| 345 (goto-char (point-min)) | |
| 346 (while (search-forward "\n>" nil t) | |
| 347 (setq tem (Buffer-menu-buffer t)) | |
| 348 (let ((buffer-read-only nil)) | |
| 349 (delete-char -1) | |
| 350 (insert ?\ )) | |
| 351 (or (eq tem buff) (memq tem others) (setq others (cons tem others)))) | |
| 352 (setq others (nreverse others) | |
| 353 tem (/ (1- (frame-height)) (1+ (length others)))) | |
| 354 (delete-other-windows) | |
| 355 (switch-to-buffer buff) | |
| 356 (or (eq menu buff) | |
| 357 (bury-buffer menu)) | |
| 358 (if (equal (length others) 0) | |
| 359 (progn | |
| 360 ;;; ;; Restore previous window configuration before displaying | |
| 361 ;;; ;; selected buffers. | |
| 362 ;;; (if Buffer-menu-window-config | |
| 363 ;;; (progn | |
| 364 ;;; (set-window-configuration Buffer-menu-window-config) | |
| 365 ;;; (setq Buffer-menu-window-config nil))) | |
| 366 (switch-to-buffer buff)) | |
| 367 (while others | |
| 368 (split-window nil tem) | |
| 369 (other-window 1) | |
| 370 (switch-to-buffer (car others)) | |
| 371 (setq others (cdr others))) | |
| 372 (other-window 1) ;back to the beginning! | |
| 373 ))) | |
| 374 | |
| 375 | |
| 376 | |
| 442 | 377 (eval-when-compile (autoload 'visit-tags-table "etags")) |
| 378 | |
| 428 | 379 (defun Buffer-menu-visit-tags-table () |
| 380 "Visit the tags table in the buffer on this line. See `visit-tags-table'." | |
| 381 (interactive) | |
| 382 (let ((file (buffer-file-name (Buffer-menu-buffer t)))) | |
| 383 (if file | |
| 384 (visit-tags-table file) | |
| 385 (error "Specified buffer has no file")))) | |
| 386 | |
| 387 (defun Buffer-menu-1-window () | |
| 388 "Select this line's buffer, alone, in full frame." | |
| 389 (interactive) | |
| 390 (switch-to-buffer (Buffer-menu-buffer t)) | |
| 391 (bury-buffer (other-buffer)) | |
| 392 (delete-other-windows) | |
| 393 ;; XEmacs: | |
| 394 ;; This is to get w->force_start set to nil. Don't ask me, I only work here. | |
| 395 (set-window-buffer (selected-window) (current-buffer))) | |
| 396 | |
| 397 (defun Buffer-menu-mouse-select (event) | |
| 398 "Select the buffer whose line you click on." | |
| 399 (interactive "e") | |
| 400 (let (buffer) | |
| 401 (save-excursion | |
| 402 (set-buffer (event-buffer event)) ; XEmacs | |
| 403 (save-excursion | |
| 404 (goto-char (event-point event)) ; XEmacs | |
| 405 (setq buffer (Buffer-menu-buffer t)))) | |
| 406 (select-window (event-window event)) ; XEmacs | |
| 407 (if (and (window-dedicated-p (selected-window)) | |
| 408 (eq (selected-window) (frame-root-window))) | |
| 409 (switch-to-buffer-other-frame buffer) | |
| 410 (switch-to-buffer buffer)))) | |
| 411 | |
| 412 ;; XEmacs | |
| 413 (defun Buffer-menu-maybe-mouse-select (event &optional click-count) | |
| 414 (interactive "e") | |
| 415 (and (>= click-count 2) | |
| 416 (let ((buffer (current-buffer)) | |
| 417 (point (point)) | |
| 418 (config (current-window-configuration))) | |
| 419 (condition-case nil | |
| 420 (progn | |
| 421 (Buffer-menu-mouse-select event) | |
| 422 t) | |
| 423 (error | |
| 424 (set-window-configuration config) | |
| 425 (set-buffer buffer) | |
| 426 (goto-char point) | |
| 427 nil))))) | |
| 428 | |
| 429 (defun Buffer-menu-this-window () | |
| 430 "Select this line's buffer in this window." | |
| 431 (interactive) | |
| 432 (switch-to-buffer (Buffer-menu-buffer t))) | |
| 433 | |
| 434 (defun Buffer-menu-other-window () | |
| 435 "Select this line's buffer in other window, leaving buffer menu visible." | |
| 436 (interactive) | |
| 437 (switch-to-buffer-other-window (Buffer-menu-buffer t))) | |
| 438 | |
| 439 (defun Buffer-menu-switch-other-window () | |
| 440 "Make the other window select this line's buffer. | |
| 441 The current window remains selected." | |
| 442 (interactive) | |
| 443 (display-buffer (Buffer-menu-buffer t))) | |
| 444 | |
| 445 (defun Buffer-menu-2-window () | |
| 446 "Select this line's buffer, with previous buffer in second window." | |
| 447 (interactive) | |
| 448 (let ((buff (Buffer-menu-buffer t)) | |
| 449 (menu (current-buffer)) | |
| 450 (pop-up-windows t)) | |
| 451 (delete-other-windows) | |
| 452 (switch-to-buffer (other-buffer)) | |
| 453 (pop-to-buffer buff) | |
| 454 (bury-buffer menu))) | |
| 455 | |
| 456 (defun Buffer-menu-toggle-read-only () | |
| 457 "Toggle read-only status of buffer on this line, perhaps via version control." | |
| 458 (interactive) | |
| 459 (let (char) | |
| 460 (save-excursion | |
| 461 (set-buffer (Buffer-menu-buffer t)) | |
| 462 (modeline-toggle-read-only) | |
| 463 (setq char (if buffer-read-only ?% ? ))) | |
| 464 (save-excursion | |
| 465 (beginning-of-line) | |
| 466 (forward-char 2) | |
| 467 (if (/= (following-char) char) | |
| 468 (let (buffer-read-only) | |
| 469 (delete-char 1) | |
| 470 (insert char)))))) | |
| 471 | |
| 472 ;; XEmacs | |
| 473 (defvar Buffer-menu-popup-menu | |
| 474 '("Buffer Commands" | |
| 475 ["Select Buffer" Buffer-menu-select t] | |
| 476 ["Select buffer Other Window" Buffer-menu-other-window t] | |
| 477 ["Clear Buffer Modification Flag" Buffer-menu-not-modified t] | |
| 478 "----" | |
| 479 ["Mark Buffer for Selection" Buffer-menu-mark t] | |
| 480 ["Mark Buffer for Save" Buffer-menu-save t] | |
| 481 ["Mark Buffer for Deletion" Buffer-menu-delete t] | |
| 482 ["Unmark Buffer" Buffer-menu-unmark t] | |
| 483 "----" | |
| 484 ["Delete/Save Marked Buffers" Buffer-menu-execute t] | |
| 485 )) | |
| 486 | |
| 487 ;; XEmacs | |
| 488 (defun Buffer-menu-popup-menu (event) | |
| 489 (interactive "e") | |
| 490 (mouse-set-point event) | |
| 491 (beginning-of-line) | |
| 492 (let ((buffer (Buffer-menu-buffer nil))) | |
| 493 (if buffer | |
| 494 (popup-menu | |
| 495 (nconc (list (car Buffer-menu-popup-menu) | |
| 496 (concat | |
| 497 "Commands on buffer \"" (buffer-name buffer) "\":") | |
| 498 "----") | |
| 499 (cdr Buffer-menu-popup-menu))) | |
| 500 (error "no buffer on this line")))) | |
| 501 | |
| 502 | |
| 503 ;; XEmacs | |
| 504 (defvar list-buffers-header-line | |
| 444 | 505 (concat " MR Buffer Size Mode File\n" |
| 506 " -- ------ ---- ---- ----\n")) | |
| 428 | 507 |
| 508 ;; XEmacs | |
| 509 (defvar list-buffers-identification 'default-list-buffers-identification | |
| 510 "String used to identify this buffer, or a function of one argument | |
| 511 to generate such a string. This variable is always buffer-local.") | |
| 512 (make-variable-buffer-local 'list-buffers-identification) | |
| 513 | |
| 514 ;; XEmacs | |
| 515 ;;;###autoload | |
| 516 (defvar list-buffers-directory nil) | |
| 517 | |
| 518 ;;;###autoload | |
| 519 (make-variable-buffer-local 'list-buffers-directory) | |
| 520 | |
| 521 ;; #### not synched | |
| 522 (defun default-list-buffers-identification (output) | |
| 523 (save-excursion | |
| 524 (let ((file (or (buffer-file-name (current-buffer)) | |
| 776 | 525 (and-boundp 'list-buffers-directory |
| 526 list-buffers-directory))) | |
| 428 | 527 (size (buffer-size)) |
| 528 (mode mode-name) | |
| 529 eob p s col) | |
| 530 (set-buffer output) | |
| 531 (end-of-line) | |
| 532 (setq eob (point)) | |
| 533 (prin1 size output) | |
| 534 (setq p (point)) | |
| 535 ;; right-justify the size | |
| 536 (move-to-column 19 t) | |
| 537 (setq col (point)) | |
| 538 (if (> eob col) | |
| 539 (goto-char eob)) | |
| 540 (setq s (- 6 (- p col))) | |
| 541 (while (> s 0) ; speed/consing tradeoff... | |
| 542 (insert ? ) | |
| 543 (setq s (1- s))) | |
| 544 (end-of-line) | |
| 545 (indent-to 27 1) | |
| 546 (insert mode) | |
| 547 (if (not file) | |
| 548 nil | |
| 549 ;; if the mode-name is really long, clip it for the filename | |
| 550 (if (> 0 (setq s (- 39 (current-column)))) | |
| 551 (delete-char (max s (- eob (point))))) | |
| 552 (indent-to 40 1) | |
| 553 (insert file))))) | |
| 554 | |
| 555 ;; #### not synched | |
| 556 (defun list-buffers-internal (output &optional predicate) | |
| 557 (let ((current (current-buffer)) | |
| 558 (buffers (buffer-list))) | |
| 559 (save-excursion | |
| 560 (set-buffer output) | |
| 561 (setq buffer-read-only nil) | |
| 562 (erase-buffer) | |
| 563 (buffer-disable-undo output) | |
| 564 (insert list-buffers-header-line) | |
| 565 | |
| 566 (while buffers | |
| 567 (let* ((col1 19) | |
| 568 (buffer (car buffers)) | |
| 569 (name (buffer-name buffer)) | |
| 570 this-buffer-line-start) | |
| 571 (setq buffers (cdr buffers)) | |
| 572 (cond ((null name)) ;deleted buffer | |
| 573 ((and predicate | |
| 574 (not (if (stringp predicate) | |
| 575 (string-match predicate name) | |
| 576 (funcall predicate buffer)))) | |
| 577 nil) | |
| 578 (t | |
| 579 (set-buffer buffer) | |
| 580 (let ((ro buffer-read-only) | |
| 581 (id list-buffers-identification)) | |
| 582 (set-buffer output) | |
| 583 (setq this-buffer-line-start (point)) | |
| 584 (insert (if (eq buffer current) | |
| 585 (progn (setq current (point)) ?\.) | |
| 586 ?\ )) | |
| 587 (insert (if (buffer-modified-p buffer) | |
| 444 | 588 ?\* |
| 428 | 589 ?\ )) |
| 590 (insert (if ro | |
| 591 ?\% | |
| 592 ?\ )) | |
| 593 (if (string-match "[\n\"\\ \t]" name) | |
| 594 (let ((print-escape-newlines t)) | |
| 595 (prin1 name output)) | |
| 596 (insert ?\ name)) | |
| 597 (indent-to col1 1) | |
| 598 (cond ((stringp id) | |
| 599 (insert id)) | |
| 600 (id | |
| 601 (set-buffer buffer) | |
| 602 (condition-case e | |
| 603 (funcall id output) | |
| 604 (error | |
| 605 (princ "***" output) (prin1 e output))) | |
| 606 (set-buffer output) | |
| 607 (goto-char (point-max))))) | |
| 608 (put-nonduplicable-text-property this-buffer-line-start | |
| 609 (point) | |
| 610 'buffer-name name) | |
| 611 (put-nonduplicable-text-property this-buffer-line-start | |
| 612 (point) | |
| 613 'highlight t) | |
| 614 (insert ?\n))))) | |
| 615 | |
| 616 (Buffer-menu-mode) | |
| 617 (if (not (bufferp current)) | |
| 618 (goto-char current))))) | |
| 619 ;(define-key ctl-x-map "\C-b" 'list-buffers) | |
| 620 | |
| 621 (defun list-buffers (&optional files-only) | |
| 622 "Display a list of names of existing buffers. | |
| 623 The list is displayed in a buffer named `*Buffer List*'. | |
| 624 Note that buffers with names starting with spaces are omitted. | |
| 444 | 625 Non-nil optional arg FILES-ONLY means mention only file buffers. |
| 428 | 626 |
| 627 The M column contains a * for buffers that are modified. | |
| 628 The R column contains a % for buffers that are read-only." | |
| 629 (interactive (list (if current-prefix-arg t nil))) ; XEmacs | |
| 630 (display-buffer (list-buffers-noselect files-only))) | |
| 631 | |
| 632 ;; #### not synched | |
| 633 (defun list-buffers-noselect (&optional files-only) | |
| 634 "Create and return a buffer with a list of names of existing buffers. | |
| 635 The buffer is named `*Buffer List*'. | |
| 636 Note that buffers with names starting with spaces are omitted. | |
| 444 | 637 Non-nil optional arg FILES-ONLY means mention only file buffers. |
| 428 | 638 |
| 639 The M column contains a * for buffers that are modified. | |
| 640 The R column contains a % for buffers that are read-only." | |
| 641 (let ((buffer (get-buffer-create "*Buffer List*"))) | |
| 642 (list-buffers-internal buffer | |
| 643 (if (memq files-only '(t nil)) | |
| 644 #'(lambda (b) | |
| 645 (let ((n (buffer-name b))) | |
|
5366
f00192e1cd49
Examining the result of #'length: `eql', not `=', it's better style & cheaper
Aidan Kehoe <kehoea@parhasard.net>
parents:
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|
646 (cond ((and (not (eql 0 (length n))) |
|
f00192e1cd49
Examining the result of #'length: `eql', not `=', it's better style & cheaper
Aidan Kehoe <kehoea@parhasard.net>
parents:
3162
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changeset
|
647 (eql (aref n 0) ?\ )) |
| 428 | 648 ;;don't mention if starts with " " |
| 649 nil) | |
| 650 (files-only | |
| 651 (buffer-file-name b)) | |
| 652 (t | |
| 653 t)))) | |
| 654 files-only)) | |
| 655 buffer)) | |
| 656 | |
| 442 | 657 (defun buffers-menu-omit-invisible-buffers (buf) |
| 658 "For use as a value of `buffers-menu-omit-function'. | |
| 659 Omits normally invisible buffers (those whose name begins with a space)." | |
| 660 (not (null (string-match "\\` " (buffer-name buf))))) | |
| 661 | |
| 771 | 662 ;;; The Buffers tab |
| 663 | |
| 664 ;; Some of this is taken from the buffer-menu stuff in menubar-items.el | |
| 665 | |
| 666 (defgroup buffers-tab nil | |
| 667 "Customization of `Buffers' tab." | |
| 668 :group 'gutter) | |
| 669 | |
| 670 (defcustom buffers-tab-max-size 6 | |
| 671 "*Maximum number of entries which may appear on the \"Buffers\" tab. | |
| 672 If this is 10, then only the ten most-recently-selected buffers will be | |
| 673 shown. If this is nil, then all buffers will be shown. Setting this to | |
| 674 a large number or nil will slow down tab responsiveness." | |
| 675 :type '(choice (const :tag "Show all" nil) | |
| 676 (integer 6)) | |
| 677 :group 'buffers-tab) | |
| 678 | |
| 679 (defcustom buffers-tab-switch-to-buffer-function 'buffers-tab-switch-to-buffer | |
| 680 "*The function to call to select a buffer from the buffers tab. | |
| 681 `switch-to-buffer' is a good choice, as is `pop-to-buffer'." | |
| 682 :type '(radio (function-item switch-to-buffer) | |
| 683 (function-item pop-to-buffer) | |
| 684 (function :tag "Other")) | |
| 685 :group 'buffers-tab) | |
| 686 | |
| 687 (defcustom buffers-tab-omit-function 'buffers-menu-omit-invisible-buffers | |
| 688 "*If non-nil, a function specifying the buffers to omit from the buffers tab. | |
| 689 This is passed a buffer and should return non-nil if the buffer should be | |
| 690 omitted. The default value `buffers-menu-omit-invisible-buffers' omits | |
| 691 buffers that are normally considered \"invisible\" (those whose name | |
| 692 begins with a space)." | |
| 693 :type '(choice (const :tag "None" nil) | |
| 694 function) | |
| 695 :group 'buffers-tab) | |
| 696 | |
| 697 (defcustom buffers-tab-selection-function 'select-buffers-tab-buffers-by-mode | |
| 698 "*If non-nil, a function specifying the buffers to select from the | |
| 699 buffers tab. This is passed two buffers and should return non-nil if | |
| 700 the second buffer should be selected. The default value | |
| 701 `select-buffers-tab-buffers-by-mode' groups buffers by major mode and | |
| 702 by `buffers-tab-grouping-regexp'." | |
| 703 | |
| 704 :type '(choice (const :tag "None" nil) | |
| 705 function) | |
| 706 :group 'buffers-tab) | |
| 707 | |
| 708 (defcustom buffers-tab-filter-functions (list buffers-tab-selection-function) | |
| 709 "*If non-nil, a list of functions specifying the buffers to select | |
| 710 from the buffers tab. | |
| 711 Each function in the list is passed two buffers, the buffer to | |
| 712 potentially select and the context buffer, and should return non-nil | |
| 713 if the first buffer should be selected. The default value groups | |
| 714 buffers by major mode and by `buffers-tab-grouping-regexp'." | |
| 715 | |
| 716 :type '(choice (const :tag "None" nil) | |
| 717 sexp) | |
| 718 :group 'buffers-tab) | |
| 719 | |
| 720 (defcustom buffers-tab-sort-function nil | |
| 721 "*If non-nil, a function specifying the buffers to select from the | |
| 722 buffers tab. This is passed the buffer list and returns the list in the | |
| 723 order desired for the tab widget. The default value `nil' leaves the | |
| 724 list in `buffer-list' order (usual most-recently-selected-first)." | |
| 725 | |
| 726 :type '(choice (const :tag "None" nil) | |
| 727 function) | |
| 728 :group 'buffers-tab) | |
| 729 | |
| 730 (make-face 'buffers-tab "Face for displaying the buffers tab.") | |
| 731 (set-face-parent 'buffers-tab 'default) | |
| 732 | |
| 733 (defcustom buffers-tab-face 'buffers-tab | |
| 734 "*Face to use for displaying the buffers tab." | |
| 735 :type 'face | |
| 736 :group 'buffers-tab) | |
| 737 | |
| 738 (defcustom buffers-tab-grouping-regexp | |
| 739 '("^\\(gnus-\\|message-mode\\|mime/viewer-mode\\)" | |
| 740 "^\\(emacs-lisp-\\|lisp-\\)") | |
| 741 "*If non-nil, a list of regular expressions for buffer grouping. | |
| 742 Each regular expression is applied to the current major-mode symbol | |
| 743 name and mode-name, if it matches then any other buffers that match | |
| 744 the same regular expression be added to the current group." | |
| 745 :type '(choice (const :tag "None" nil) | |
| 746 sexp) | |
| 747 :group 'buffers-tab) | |
| 748 | |
| 749 (defcustom buffers-tab-format-buffer-line-function 'format-buffers-tab-line | |
| 750 "*The function to call to return a string to represent a buffer in the | |
| 751 buffers tab. The function is passed a buffer and should return a | |
| 752 string. The default value `format-buffers-tab-line' just returns the | |
| 753 name of the buffer, optionally truncated to | |
| 754 `buffers-tab-max-buffer-line-length'. Also check out | |
| 755 `slow-format-buffers-menu-line' which returns a whole bunch of info | |
| 756 about a buffer." | |
| 757 :type 'function | |
| 758 :group 'buffers-tab) | |
| 759 | |
| 760 (defvar buffers-tab-default-buffer-line-length | |
| 761 (make-specifier-and-init 'generic '((global ((default) . 25))) t) | |
| 762 "*Maximum length of text which may appear in a \"Buffers\" tab. | |
| 763 This is a specifier, use set-specifier to modify it.") | |
| 764 | |
| 765 (defcustom buffers-tab-max-buffer-line-length | |
| 766 (specifier-instance buffers-tab-default-buffer-line-length) | |
| 767 "*Maximum length of text which may appear in a \"Buffers\" tab. | |
| 768 Buffer names over this length will be truncated with elipses. | |
| 769 If this is 0, then the full buffer name will be shown." | |
| 770 :type '(choice (const :tag "Show all" 0) | |
| 771 (integer 25)) | |
| 772 :group 'buffers-tab | |
| 773 :set #'(lambda (var val) | |
| 774 (set-specifier buffers-tab-default-buffer-line-length val) | |
| 775 (setq buffers-tab-max-buffer-line-length val))) | |
| 776 | |
| 777 (defun buffers-tab-switch-to-buffer (buffer) | |
| 778 "For use as a value for `buffers-tab-switch-to-buffer-function'." | |
| 779 (unless (eq (window-buffer) buffer) | |
| 780 ;; this used to add the norecord flag to both calls below. | |
| 781 ;; this is bogus because it is a pervasive assumption in XEmacs | |
| 782 ;; that the current buffer is at the front of the buffers list. | |
| 783 ;; for example, select an item and then do M-C-l | |
| 784 ;; (switch-to-other-buffer). Things get way confused. | |
| 785 (if (> (length (windows-of-buffer buffer)) 0) | |
| 786 (select-window (car (windows-of-buffer buffer))) | |
| 787 (switch-to-buffer buffer)))) | |
| 788 | |
| 789 (defun select-buffers-tab-buffers-by-mode (buffer-to-select buf1) | |
| 790 "For use as a value of `buffers-tab-selection-function'. | |
| 791 This selects buffers by major mode `buffers-tab-grouping-regexp'." | |
| 792 (let ((mode1 (symbol-name (symbol-value-in-buffer 'major-mode buf1))) | |
| 793 (mode2 (symbol-name (symbol-value-in-buffer 'major-mode | |
| 794 buffer-to-select))) | |
| 795 (modenm1 (symbol-value-in-buffer 'mode-name buf1)) | |
| 796 (modenm2 (symbol-value-in-buffer 'mode-name buffer-to-select))) | |
| 797 (cond ((or (eq mode1 mode2) | |
| 798 (eq modenm1 modenm2) | |
| 799 (and (string-match "^[^-]+-" mode1) | |
| 800 (string-match | |
| 801 (concat "^" (regexp-quote | |
| 802 (substring mode1 0 (match-end 0)))) | |
| 803 mode2)) | |
| 804 (and buffers-tab-grouping-regexp | |
| 805 (find-if #'(lambda (x) | |
| 806 (or | |
| 807 (and (string-match x mode1) | |
| 808 (string-match x mode2)) | |
| 809 (and (string-match x modenm1) | |
| 810 (string-match x modenm2)))) | |
| 811 buffers-tab-grouping-regexp))) | |
| 812 t) | |
| 813 (t nil)))) | |
| 814 | |
| 815 (defun format-buffers-tab-line (buffer) | |
| 816 "For use as a value of `buffers-tab-format-buffer-line-function'. | |
| 817 This just returns the buffer's name, optionally truncated." | |
| 818 (let ((len (specifier-instance buffers-tab-default-buffer-line-length))) | |
| 819 (if (and (> len 0) | |
| 820 (> (length (buffer-name buffer)) len)) | |
| 821 (if (string-match ".*<.>$" (buffer-name buffer)) | |
| 822 (concat (substring (buffer-name buffer) | |
| 823 0 (- len 6)) "..." | |
| 824 (substring (buffer-name buffer) -3)) | |
| 825 (concat (substring (buffer-name buffer) | |
| 826 0 (- len 3)) "...")) | |
| 827 (buffer-name buffer)))) | |
| 828 | |
| 829 (defsubst build-buffers-tab-internal (buffers) | |
| 830 (let ((selected t)) | |
| 831 (mapcar | |
| 832 #'(lambda (buffer) | |
| 833 (prog1 | |
| 834 (vector | |
| 835 (funcall buffers-tab-format-buffer-line-function | |
| 836 buffer) | |
| 837 (list buffers-tab-switch-to-buffer-function | |
| 838 (buffer-name buffer)) | |
| 839 :selected selected) | |
| 840 (when selected (setq selected nil)))) | |
| 841 buffers))) | |
| 842 | |
| 843 ;;; #### SJT would like this function to have a sort function list. I | |
| 844 ;;; don't see how this could work given that sorting is not | |
| 845 ;;; cumulative --andyp. | |
| 846 (defun buffers-tab-items (&optional in-deletion frame force-selection) | |
| 847 "Return a list of tab instantiators based on the current buffers list. | |
| 848 This function is used as the tab filter for the top-level buffers | |
| 849 \"Buffers\" tab. It dynamically creates a list of tab instantiators | |
| 850 to use as the contents of the tab. The contents and order of the list | |
| 851 is controlled by `buffers-tab-filter-functions' which by default | |
| 852 groups buffers according to major mode and removes invisible buffers. | |
| 853 You can control how many buffers will be shown by setting | |
| 854 `buffers-tab-max-size'. You can control the text of the tab items by | |
| 855 redefining the function `format-buffers-menu-line'." | |
| 856 (save-match-data | |
| 857 ;; NB it is too late if we run the omit function as part of the | |
| 858 ;; filter functions because we need to know which buffer is the | |
| 859 ;; context buffer before they get run. | |
| 860 (let* ((buffers (delete-if | |
| 861 buffers-tab-omit-function (buffer-list frame))) | |
| 862 (first-buf (car buffers))) | |
| 863 ;; maybe force the selected window | |
| 864 (when (and force-selection | |
| 865 (not in-deletion) | |
| 866 (not (eq first-buf (window-buffer (selected-window frame))))) | |
| 867 (setq buffers (cons (window-buffer (selected-window frame)) | |
| 868 (delq first-buf buffers)))) | |
| 869 ;; if we're in deletion ignore the current buffer | |
| 870 (when in-deletion | |
| 871 (setq buffers (delq (current-buffer) buffers)) | |
| 872 (setq first-buf (car buffers))) | |
| 873 ;; filter buffers | |
| 874 (when buffers-tab-filter-functions | |
| 875 (setq buffers | |
| 876 (delete-if | |
| 877 #'null | |
| 878 (mapcar #'(lambda (buf) | |
| 879 (let ((tmp-buf buf)) | |
| 880 (mapc #'(lambda (fun) | |
| 881 (unless (funcall fun buf first-buf) | |
| 882 (setq tmp-buf nil))) | |
| 883 buffers-tab-filter-functions) | |
| 884 tmp-buf)) | |
| 885 buffers)))) | |
| 886 ;; maybe shorten list of buffers | |
| 887 (and (integerp buffers-tab-max-size) | |
| 888 (> buffers-tab-max-size 1) | |
| 889 (> (length buffers) buffers-tab-max-size) | |
| 890 (setcdr (nthcdr (1- buffers-tab-max-size) buffers) nil)) | |
| 891 ;; sort buffers in group (default is most-recently-selected) | |
| 892 (when buffers-tab-sort-function | |
| 893 (setq buffers (funcall buffers-tab-sort-function buffers))) | |
| 894 ;; convert list of buffers to list of structures used by tab widget | |
| 895 (setq buffers (build-buffers-tab-internal buffers)) | |
| 896 buffers))) | |
| 897 | |
| 428 | 898 (provide 'buff-menu) |
| 899 | |
| 900 ;;; buff-menu.el ends here |