;;; 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, 2008 Free Software Foundation, Inc.
+;; 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: convenience
:group 'convenience)
(defcustom Buffer-menu-use-header-line t
- "*Non-nil means to use an immovable header-line."
+ "Non-nil means to use an immovable header-line."
:type 'boolean
:group 'Buffer-menu)
(put 'Buffer-menu-buffer 'face-alias 'buffer-menu-buffer)
(defcustom Buffer-menu-buffer+size-width 26
- "*How wide to jointly make the buffer name and size columns."
+ "How wide to jointly make the buffer name and size columns."
:type 'number
:group 'Buffer-menu)
(defcustom Buffer-menu-mode-width 16
- "*How wide to make the mode name column."
+ "How wide to make the mode name column."
:type 'number
:group 'Buffer-menu)
(defvar Info-current-node) ;; from info.el
(defvar Buffer-menu-mode-map
- (let ((map (make-keymap)))
+ (let ((map (make-keymap))
+ (menu-map (make-sparse-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 "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)
(define-key map (kbd "M-s a C-s") 'Buffer-menu-isearch-buffers)
(define-key map (kbd "M-s a M-C-s") 'Buffer-menu-isearch-buffers-regexp)
+ (define-key map [menu-bar Buffer-menu-mode] (cons "Buffer Menu" menu-map))
+ (define-key menu-map [quit]
+ '(menu-item "Quit" quit-window
+ :help "Mark buffer on this line to be deleted by x command"))
+ (define-key menu-map [rev]
+ '(menu-item "Refresh" revert-buffer
+ :help "Refresh the *Buffer List* buffer contents"))
+ (define-key menu-map [s0] '("--"))
+ (define-key menu-map [tf]
+ '(menu-item "Show only file buffers" Buffer-menu-toggle-files-only
+ :button (:toggle . Buffer-menu-files-only)
+ :help "Toggle whether the current buffer-menu displays only file buffers"))
+ (define-key menu-map [s1] '("--"))
+ ;; FIXME: The "Select" entries could use better names...
+ (define-key menu-map [sel]
+ '(menu-item "Select marked" Buffer-menu-select
+ :help "Select this line's buffer; also display buffers marked with `>'"))
+ (define-key menu-map [bm2]
+ '(menu-item "Select two" Buffer-menu-2-window
+ :help "Select this line's buffer, with previous buffer in second window"))
+ (define-key menu-map [bm1]
+ '(menu-item "Select current" Buffer-menu-1-window
+ :help "Select this line's buffer, alone, in full frame"))
+ (define-key menu-map [ow]
+ '(menu-item "Select in other window" Buffer-menu-other-window
+ :help "Select this line's buffer in other window, leaving buffer menu visible"))
+ (define-key menu-map [tw]
+ '(menu-item "Select in current window" Buffer-menu-this-window
+ :help "Select this line's buffer in this window"))
+ (define-key menu-map [s2] '("--"))
+ (define-key menu-map [is]
+ '(menu-item "Regexp Isearch marked buffers" Buffer-menu-isearch-buffers-regexp
+ :help "Search for a regexp through all marked buffers using Isearch"))
+ (define-key menu-map [ir]
+ '(menu-item "Isearch marked buffers" Buffer-menu-isearch-buffers
+ :help "Search for a string through all marked buffers using Isearch"))
+ (define-key menu-map [s3] '("--"))
+ (define-key menu-map [by]
+ '(menu-item "Bury" Buffer-menu-bury
+ :help "Bury the buffer listed on this line"))
+ (define-key menu-map [vt]
+ '(menu-item "Set unmodified" Buffer-menu-not-modified
+ :help "Mark buffer on this line as unmodified (no changes to save)"))
+ (define-key menu-map [ex]
+ '(menu-item "Execute" Buffer-menu-execute
+ :help "Save and/or delete buffers marked with s or k commands"))
+ (define-key menu-map [s4] '("--"))
+ (define-key menu-map [delb]
+ '(menu-item "Mark for delete and move backwards" Buffer-menu-delete-backwards
+ :help "Mark buffer on this line to be deleted by x command and move up one line"))
+ (define-key menu-map [del]
+ '(menu-item "Mark for delete" Buffer-menu-delete
+ :help "Mark buffer on this line to be deleted by x command"))
+
+ (define-key menu-map [sv]
+ '(menu-item "Mark for save" Buffer-menu-save
+ :help "Mark buffer on this line to be saved by x command"))
+ (define-key menu-map [umk]
+ '(menu-item "Unmark" Buffer-menu-unmark
+ :help "Cancel all requested operations on buffer on this line and move down"))
+ (define-key menu-map [mk]
+ '(menu-item "Mark" Buffer-menu-mark
+ :help "Mark buffer on this line for being displayed by v command"))
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)
-(define-derived-mode Buffer-menu-mode nil "Buffer Menu"
+(define-derived-mode Buffer-menu-mode special-mode "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.
With prefix argument, also move up one line.
\\[Buffer-menu-backup-unmark] -- back up a line and remove marks.
\\[Buffer-menu-toggle-read-only] -- toggle read-only status of buffer on this line.
-\\[Buffer-menu-revert] -- update the list of buffers.
+\\[revert-buffer] -- 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."
(set (make-local-variable 'revert-buffer-function)
(setq truncate-lines t)
(setq buffer-read-only t))
-;; This function exists so we can make the doc string of Buffer-menu-mode
-;; look nice.
-(defun Buffer-menu-revert ()
- "Update the list of buffers."
- (interactive)
- (revert-buffer))
+(define-obsolete-variable-alias 'buffer-menu-mode-hook
+ 'Buffer-menu-mode-hook "23.1")
(defun Buffer-menu-revert-function (ignore1 ignore2)
(or (eq buffer-undo-list t)
(interactive "P")
(display-buffer (list-buffers-noselect files-only)))
+(defconst Buffer-menu-short-ellipsis
+ ;; This file is preloaded, so we can't use char-displayable-p here
+ ;; because we don't know yet what display we're going to connect to.
+ ":" ;; (if (char-displayable-p ?…) "…" ":")
+ )
+
(defun Buffer-menu-buffer+size (name size &optional name-props size-props)
- (if (> (+ (length name) (length size) 2) Buffer-menu-buffer+size-width)
+ (if (> (+ (string-width name) (string-width size) 2)
+ Buffer-menu-buffer+size-width)
(setq name
- (if (string-match "<[0-9]+>$" name)
- (concat (substring name 0
- (- Buffer-menu-buffer+size-width
- (max (length size) 3)
- (match-end 0)
- (- (match-beginning 0))
- 2))
- ":" ; narrow ellipsis
- (match-string 0 name))
- (concat (substring name 0
- (- Buffer-menu-buffer+size-width
- (max (length size) 3)
- 2))
- ":"))) ; narrow ellipsis
+ (let ((tail
+ (if (string-match "<[0-9]+>$" name)
+ (match-string 0 name)
+ "")))
+ (concat (truncate-string-to-width
+ name
+ (- Buffer-menu-buffer+size-width
+ (max (string-width size) 3)
+ (string-width tail)
+ 2))
+ Buffer-menu-short-ellipsis
+ tail)))
;; Don't put properties on (buffer-name).
(setq name (copy-sequence name)))
(add-text-properties 0 (length name) name-props name)
(add-text-properties 0 (length size) size-props size)
(concat name
(make-string (- Buffer-menu-buffer+size-width
- (length name)
- (length size))
+ (string-width name)
+ (string-width size))
?\s)
size))
(if (or m1 m2)
(push (list buf m1 m2) l)))
(forward-line)))
- (Buffer-menu-revert)
+ (revert-buffer)
(save-excursion
(Buffer-menu-beginning)
(while (not (eobp))
buffer ,(car buffer)
font-lock-face buffer-menu-buffer
mouse-face highlight
- help-echo
+ 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)
+ " "
+ (if (> (string-width (nth 4 buffer)) Buffer-menu-mode-width)
+ (truncate-string-to-width (nth 4 buffer)
+ Buffer-menu-mode-width)
(nth 4 buffer)))
(when (nth 5 buffer)
(indent-to (+ Buffer-menu-buffer-column Buffer-menu-buffer+size-width