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  1. EmacsWiki: Category Undo
    In Emacs, undo means undoing changes to buffers. However, this page includes
    discussion of related ways to “undo” other aspects of your Emacs session.

  2. EmacsWiki: Undo Tree
    About. Emacs's undo system allows you to recover any past state of a buffer (the
    standard undo/redo system loses any “redoable” states whenever you make an ...

  3. EmacsWiki: Undo Commands
    Consecutive repetitions of 'C-/' (or its aliases) undo earlier and earlier changes in
    the current buffer. If all the recorded changes have already been undone, the ...

  4. EmacsWiki: point-undo.el
    Oct 16, 2009 ... M-x toggle-debug-on-error or (setq debug-on-error t) ;; 3) Use Lisp version
    instead of compiled one: (load "point-undo.el") ;; 4) Do it! ;; 5) If you ...

  5. EmacsWiki: Redo Mode
    Emacs treats 'undo' as just another command. Therefore you can undo the undo.
    This is powerful and confusing, because if you are doing several undos and ...

  6. EmacsWiki: old-fashioned-undo.el
    May 15, 2013 ... This behavior may ;; make undo/redo operations perfect, but I feel this behavior is
    ;; too much verbose and little bit annoying. ;; ;; The undo/redo ...

  7. EmacsWiki: selective-undo-xmas.el
    Oct 13, 2005 ... selective-undo-xmas.el ;; This file is free software ;; Xemacs port of selective undo
    . (defun undo (&optional arg) "Undo some previous changes.

  8. EmacsWiki: View Undo
    Sep 5, 2008 ... 2007-5-30 ;;; Derek Peschel ;;; Peek at Emacs's undo state. ;;; TO DO: make view-
    undo not affect undo's idea of whether it is ;;; currently ...

  9. EmacsWiki: Revert Buffer
    Until Emacs 24.4, there is no way to save the undo history if the file is changed
    behind Emacs's back. Emacs needs to re-read the file from disk and reverting a ...

  10. EmacsWiki: Emacs Newbie Key Reference
    You've undone all changes when the mode line shows '--' instead of '**'; redo:
    after undo, C-g and then C-x u; undo unsaved changes to a buffer: M-x revert- ...



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