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Indent.
[gnus]
/
lisp
/
gnus-undo.el
diff --git
a/lisp/gnus-undo.el
b/lisp/gnus-undo.el
index
b34070a
..
7dd333f
100644
(file)
--- a/
lisp/gnus-undo.el
+++ b/
lisp/gnus-undo.el
@@
-1,7
+1,9
@@
;;; gnus-undo.el --- minor mode for undoing in Gnus
;;; gnus-undo.el --- minor mode for undoing in Gnus
-;; Copyright (C) 1996,97 Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000
+;; Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; This file is part of GNU Emacs.
;; Keywords: news
;; This file is part of GNU Emacs.
@@
-25,7
+27,7
@@
;; This package allows arbitrary undoing in Gnus buffers. As all the
;; Gnus buffers aren't very text-oriented (what is in the buffers is
;; This package allows arbitrary undoing in Gnus buffers. As all the
;; Gnus buffers aren't very text-oriented (what is in the buffers is
-;; just some
random
representation of the actual data), normal Emacs
+;; just some
arbitrary
representation of the actual data), normal Emacs
;; undoing doesn't work at all for Gnus.
;;
;; This package works by letting Gnus register functions for reversing
;; undoing doesn't work at all for Gnus.
;;
;; This package works by letting Gnus register functions for reversing
@@
-48,12
+50,26
@@
(require 'gnus-util)
(require 'gnus)
(require 'gnus-util)
(require 'gnus)
+(require 'custom)
+
+(defgroup gnus-undo nil
+ "Undoing in Gnus buffers."
+ :group 'gnus)
+
+(defcustom gnus-undo-limit 2000
+ "The number of undoable actions recorded."
+ :type 'integer
+ :group 'gnus-undo)
-(defvar gnus-undo-mode nil
- "Minor mode for undoing in Gnus buffers.")
+(defcustom gnus-undo-mode nil
+ "Minor mode for undoing in Gnus buffers."
+ :type 'boolean
+ :group 'gnus-undo)
-(defvar gnus-undo-mode-hook nil
- "Hook called in all `gnus-undo-mode' buffers.")
+(defcustom gnus-undo-mode-hook nil
+ "Hook called in all `gnus-undo-mode' buffers."
+ :type 'hook
+ :group 'gnus-undo)
;;; Internal variables.
;;; Internal variables.
@@
-70,11
+86,11
@@
(setq gnus-undo-mode-map (make-sparse-keymap))
(gnus-define-keys gnus-undo-mode-map
(setq gnus-undo-mode-map (make-sparse-keymap))
(gnus-define-keys gnus-undo-mode-map
- "\M-\C-_" gnus-undo
- "\C-_" gnus-undo
- "\C-xu" gnus-undo
- ;; many people are used to type `C-/' on X terminals and get `C-_'.
- [(control /)] gnus-undo))
+
"\M-\C-_" gnus-undo
+
"\C-_" gnus-undo
+
"\C-xu" gnus-undo
+
;; many people are used to type `C-/' on X terminals and get `C-_'.
+
[(control /)] gnus-undo))
(defun gnus-undo-make-menu-bar ()
;; This is disabled for the time being.
(defun gnus-undo-make-menu-bar ()
;; This is disabled for the time being.
@@
-100,7
+116,7
@@
(gnus-add-minor-mode 'gnus-undo-mode "" gnus-undo-mode-map)
(make-local-hook 'post-command-hook)
(add-hook 'post-command-hook 'gnus-undo-boundary nil t)
(gnus-add-minor-mode 'gnus-undo-mode "" gnus-undo-mode-map)
(make-local-hook 'post-command-hook)
(add-hook 'post-command-hook 'gnus-undo-boundary nil t)
- (run-hooks 'gnus-undo-mode-hook)))
+ (
gnus-
run-hooks 'gnus-undo-mode-hook)))
;;; Interface functions.
;;; Interface functions.
@@
-148,6
+164,11
@@
FORMS may use backtick quote syntax."
;; Initialize list.
(t
(setq gnus-undo-actions (list (list function)))))
;; Initialize list.
(t
(setq gnus-undo-actions (list (list function)))))
+ ;; Limit the length of the undo list.
+ (let ((next (nthcdr gnus-undo-limit gnus-undo-actions)))
+ (when next
+ (setcdr next nil)))
+ ;; We are not at a boundary...
(setq gnus-undo-boundary-inhibit t)))
(defun gnus-undo (n)
(setq gnus-undo-boundary-inhibit t)))
(defun gnus-undo (n)