;;; buff-menu.el --- buffer menu main function and support functions -*- coding:utf-8 -*-
;; Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 2000, 2001, 2002, 2003,
-;; 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+;; 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: convenience
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
+;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
(defvar Buffer-menu-sort-column nil
"Which column to sort the menu on.
Use 2 to sort by buffer names, or 5 to sort by file names.
-nil means sort by visited order (the default).")
+A nil value means sort by visited order (the default).")
(defconst Buffer-menu-buffer-column 4)
-(defvar Buffer-menu-mode-map nil
- "Local keymap for `Buffer-menu-mode' buffers.")
-
(defvar Buffer-menu-files-only nil
"Non-nil if the current buffer-menu lists only file buffers.
This variable determines whether reverting the buffer lists only
file buffers. It affects both manual reverting and reverting by
Auto Revert Mode.")
+(make-variable-buffer-local 'Buffer-menu-files-only)
+
(defvar Info-current-file) ;; from info.el
(defvar Info-current-node) ;; from info.el
-(make-variable-buffer-local 'Buffer-menu-files-only)
-
-(if Buffer-menu-mode-map
- ()
- (setq Buffer-menu-mode-map (make-keymap))
- (suppress-keymap Buffer-menu-mode-map t)
- (define-key Buffer-menu-mode-map "q" 'quit-window)
- (define-key Buffer-menu-mode-map "v" 'Buffer-menu-select)
- (define-key Buffer-menu-mode-map "2" 'Buffer-menu-2-window)
- (define-key Buffer-menu-mode-map "1" 'Buffer-menu-1-window)
- (define-key Buffer-menu-mode-map "f" 'Buffer-menu-this-window)
- (define-key Buffer-menu-mode-map "e" 'Buffer-menu-this-window)
- (define-key Buffer-menu-mode-map "\C-m" 'Buffer-menu-this-window)
- (define-key Buffer-menu-mode-map "o" 'Buffer-menu-other-window)
- (define-key Buffer-menu-mode-map "\C-o" 'Buffer-menu-switch-other-window)
- (define-key Buffer-menu-mode-map "s" 'Buffer-menu-save)
- (define-key Buffer-menu-mode-map "d" 'Buffer-menu-delete)
- (define-key Buffer-menu-mode-map "k" 'Buffer-menu-delete)
- (define-key Buffer-menu-mode-map "\C-d" 'Buffer-menu-delete-backwards)
- (define-key Buffer-menu-mode-map "\C-k" 'Buffer-menu-delete)
- (define-key Buffer-menu-mode-map "x" 'Buffer-menu-execute)
- (define-key Buffer-menu-mode-map " " 'next-line)
- (define-key Buffer-menu-mode-map "n" 'next-line)
- (define-key Buffer-menu-mode-map "p" 'previous-line)
- (define-key Buffer-menu-mode-map "\177" 'Buffer-menu-backup-unmark)
- (define-key Buffer-menu-mode-map "~" 'Buffer-menu-not-modified)
- (define-key Buffer-menu-mode-map "?" 'describe-mode)
- (define-key Buffer-menu-mode-map "u" 'Buffer-menu-unmark)
- (define-key Buffer-menu-mode-map "m" 'Buffer-menu-mark)
- (define-key Buffer-menu-mode-map "t" 'Buffer-menu-visit-tags-table)
- (define-key Buffer-menu-mode-map "%" 'Buffer-menu-toggle-read-only)
- (define-key Buffer-menu-mode-map "b" 'Buffer-menu-bury)
- (define-key Buffer-menu-mode-map "g" 'Buffer-menu-revert)
- (define-key Buffer-menu-mode-map "V" 'Buffer-menu-view)
- (define-key Buffer-menu-mode-map "T" 'Buffer-menu-toggle-files-only)
- (define-key Buffer-menu-mode-map [mouse-2] 'Buffer-menu-mouse-select)
- (define-key Buffer-menu-mode-map [follow-link] 'mouse-face)
-)
+(defvar Buffer-menu-mode-map
+ (let ((map (make-keymap)))
+ (suppress-keymap map t)
+ (define-key map "q" 'quit-window)
+ (define-key map "v" 'Buffer-menu-select)
+ (define-key map "2" 'Buffer-menu-2-window)
+ (define-key map "1" 'Buffer-menu-1-window)
+ (define-key map "f" 'Buffer-menu-this-window)
+ (define-key map "e" 'Buffer-menu-this-window)
+ (define-key map "\C-m" 'Buffer-menu-this-window)
+ (define-key map "o" 'Buffer-menu-other-window)
+ (define-key map "\C-o" 'Buffer-menu-switch-other-window)
+ (define-key map "s" 'Buffer-menu-save)
+ (define-key map "d" 'Buffer-menu-delete)
+ (define-key map "k" 'Buffer-menu-delete)
+ (define-key map "\C-d" 'Buffer-menu-delete-backwards)
+ (define-key map "\C-k" 'Buffer-menu-delete)
+ (define-key map "x" 'Buffer-menu-execute)
+ (define-key map " " 'next-line)
+ (define-key map "n" 'next-line)
+ (define-key map "p" 'previous-line)
+ (define-key map "\177" 'Buffer-menu-backup-unmark)
+ (define-key map "~" 'Buffer-menu-not-modified)
+ (define-key map "?" 'describe-mode)
+ (define-key map "u" 'Buffer-menu-unmark)
+ (define-key map "m" 'Buffer-menu-mark)
+ (define-key map "t" 'Buffer-menu-visit-tags-table)
+ (define-key map "%" 'Buffer-menu-toggle-read-only)
+ (define-key map "b" 'Buffer-menu-bury)
+ (define-key map "g" 'Buffer-menu-revert)
+ (define-key map "V" 'Buffer-menu-view)
+ (define-key map "T" 'Buffer-menu-toggle-files-only)
+ (define-key map [mouse-2] 'Buffer-menu-mouse-select)
+ (define-key map [follow-link] 'mouse-face)
+ map)
+ "Local keymap for `Buffer-menu-mode' buffers.")
;; Buffer Menu mode is suitable only for specially formatted data.
(put 'Buffer-menu-mode 'mode-class 'special)
-(defun Buffer-menu-mode ()
+(define-derived-mode Buffer-menu-mode nil "Buffer Menu"
"Major mode for editing a list of buffers.
Each line describes one of the buffers in Emacs.
Letters do not insert themselves; instead, they are commands.
\\[Buffer-menu-revert] -- update the list of buffers.
\\[Buffer-menu-toggle-files-only] -- toggle whether the menu displays only file buffers.
\\[Buffer-menu-bury] -- bury the buffer listed on this line."
- (kill-all-local-variables)
- (use-local-map Buffer-menu-mode-map)
- (setq major-mode 'Buffer-menu-mode)
- (setq mode-name "Buffer Menu")
(set (make-local-variable 'revert-buffer-function)
'Buffer-menu-revert-function)
(set (make-local-variable 'buffer-stale-function)
#'(lambda (&optional noconfirm) 'fast))
(setq truncate-lines t)
- (setq buffer-read-only t)
- (run-mode-hooks 'buffer-menu-mode-hook))
+ (setq buffer-read-only t))
;; This function exists so we can make the doc string of Buffer-menu-mode
;; look nice.
;; Put the buffer name into a text property
;; so we don't have to extract it from the text.
;; This way we avoid problems with unusual buffer names.
- (Buffer-menu-buffer+size (nth 2 buffer)
- (int-to-string (nth 3 buffer))
- `(buffer-name ,(nth 2 buffer)
- buffer ,(car buffer)
- font-lock-face buffer-menu-buffer
- mouse-face highlight
- help-echo "mouse-2: select this buffer"))
- " "
+ (let ((name (nth 2 buffer))
+ (size (int-to-string (nth 3 buffer))))
+ (Buffer-menu-buffer+size name size
+ `(buffer-name ,name
+ buffer ,(car buffer)
+ font-lock-face buffer-menu-buffer
+ mouse-face highlight
+ help-echo
+ ,(if (>= (length name)
+ (- Buffer-menu-buffer+size-width
+ (max (length size) 3)
+ 2))
+ name
+ "mouse-2: select this buffer"))))
+ " "
(if (> (length (nth 4 buffer)) Buffer-menu-mode-width)
(substring (nth 4 buffer) 0 Buffer-menu-mode-width)
(nth 4 buffer)))
HCoop / bpt / emacs.git / blobdiff