;;; repeat.el --- convenient way to repeat the previous command
-;; Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005,
-;; 2006, 2007 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 2001-2011 Free Software Foundation, Inc.
;; Author: Will Mengarini <seldon@eskimo.com>
;; Created: Mo 02 Mar 98
-;; Version: 0.51, We 13 May 98
+;; Version: 0.51
;; Keywords: convenience, vi, repeat
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; 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 3, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
:type '(repeat function))
;; If the last command was self-insert-command, the char to be inserted was
-;; obtained by that command from last-command-char, which has now been
+;; obtained by that command from last-command-event, which has now been
;; clobbered by the command sequence that invoked `repeat'. We could get it
-;; from (recent-keys) & set last-command-char to that, "unclobbering" it, but
+;; from (recent-keys) & set last-command-event to that, "unclobbering" it, but
;; this has the disadvantage that if the user types a sequence of different
;; chars then invokes repeat, only the final char will be inserted. In vi,
;; the dot command can reinsert the entire most-recently-inserted sequence.
(defvar repeat-previous-repeated-command nil
"The previous repeated command.")
+;; The following variable counts repeated self-insertions. The idea is
+;; that repeating a self-insertion command and subsequently undoing it
+;; should have almost the same effect as if the characters were inserted
+;; manually. The basic difference is that we leave in one undo-boundary
+;; between the original insertion and its first repetition.
+(defvar repeat-undo-count nil
+ "Number of self-insertions since last `undo-boundary'.")
+
;;;###autoload
(defun repeat (repeat-arg)
"Repeat most recently executed command.
(setq repeat-arg last-prefix-arg))
;; Now determine whether to loop on repeated taps of the final character
;; of the key sequence that invoked repeat. The Emacs global
- ;; last-command-char contains the final character now, but may not still
+ ;; last-command-event contains the final character now, but may not still
;; contain it after the previous command is repeated, so the character
;; needs to be saved.
(let ((repeat-repeat-char
(if (eq repeat-on-final-keystroke t)
- ;; The following commented out since it's equivalent to
- ;; last-comment-char (martin 2007-08-29).
-;;; ;; allow any final input event that was a character
-;;; (when (eq last-command-char
-;;; last-command-event)
-;;; last-command-char)
- last-command-char
+ last-command-event
;; allow only specified final keystrokes
- (car (memq last-command-char
+ (car (memq last-command-event
(listify-key-sequence
repeat-on-final-keystroke))))))
(if (memq last-repeatable-command '(exit-minibuffer
(i 0))
;; Run pre- and post-command hooks for self-insertion too.
(run-hooks 'pre-command-hook)
+ (cond
+ ((not repeat-undo-count))
+ ((< repeat-undo-count 20)
+ ;; Don't make an undo-boundary here.
+ (setq repeat-undo-count (1+ repeat-undo-count)))
+ (t
+ ;; Make an undo-boundary after 20 repetitions only.
+ (undo-boundary)
+ (setq repeat-undo-count 1)))
(while (< i count)
(repeat-self-insert insertion)
(setq i (1+ i)))
(run-hooks 'post-command-hook)))
(let ((indirect (indirect-function last-repeatable-command)))
+ ;; Make each repetition undo separately.
+ (undo-boundary)
(if (or (stringp indirect)
(vectorp indirect))
;; Bind real-last-command so that executing the macro does
;; (only 32 repetitions are possible given the default value of 200 for
;; max-lisp-eval-depth), but if I now locally disable the repeat char I
;; can iterate indefinitely here around a single level of recursion.
- (let (repeat-on-final-keystroke)
+ (let (repeat-on-final-keystroke
+ ;; Bind `undo-inhibit-record-point' to t in order to avoid
+ ;; recording point in `buffer-undo-list' here. We have to
+ ;; do this since the command loop does not set the last
+ ;; position of point thus confusing the point recording
+ ;; mechanism when inserting or deleting text.
+ (undo-inhibit-record-point t))
(setq real-last-command 'repeat)
- (while (eq (read-event) repeat-repeat-char)
- ;; Make each repetition undo separately.
- (undo-boundary)
- (repeat repeat-arg))
+ (setq repeat-undo-count 1)
+ (unwind-protect
+ (while (let ((evt (read-key)))
+ ;; For clicks, we need to strip the meta-data to
+ ;; check the underlying event name.
+ (eq (or (car-safe evt) evt)
+ (or (car-safe repeat-repeat-char)
+ repeat-repeat-char)))
+ (repeat repeat-arg))
+ ;; Make sure `repeat-undo-count' is reset.
+ (setq repeat-undo-count nil))
(setq unread-command-events (list last-input-event))))))
(defun repeat-self-insert (string)
(let ((i 0))
(while (< i (length string))
- (let ((last-command-char (aref string i)))
+ (let ((last-command-event (aref string i)))
(self-insert-command 1))
(setq i (1+ i)))))
(provide 'repeat)
-;;; arch-tag: cd569600-a1ad-4fa7-9062-bb91dfeaf1db
;;; repeat.el ends here