/[emacs]/emacs/lispref/text.texi
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revision 1.64.2.6 by miles, Wed Oct 27 05:41:57 2004 UTC revision 1.64.2.7 by miles, Wed Dec 8 05:02:10 2004 UTC
# Line 1244  calls @code{undo-boundary} after each re Line 1244  calls @code{undo-boundary} after each re
1244  undo individual replacements one by one.  undo individual replacements one by one.
1245  @end defun  @end defun
1246    
1247    @defvar undo-in-progress
1248    This variable is normally @code{nil}, but the undo commands bind it to
1249    @code{t}.  This is so that various kinds of change hooks can tell when
1250    they're being called for the sake of undoing.
1251    @end defvar
1252    
1253  @defun primitive-undo count list  @defun primitive-undo count list
1254  This is the basic function for undoing elements of an undo list.  This is the basic function for undoing elements of an undo list.
1255  It undoes the first @var{count} elements of @var{list}, returning  It undoes the first @var{count} elements of @var{list}, returning
# Line 1256  list value at the beginning of a sequenc Line 1262  list value at the beginning of a sequenc
1262  undo operations use and update the saved value.  The new elements added  undo operations use and update the saved value.  The new elements added
1263  by undoing are not part of this saved value, so they don't interfere with  by undoing are not part of this saved value, so they don't interfere with
1264  continuing to undo.  continuing to undo.
1265    
1266    This function does not bind @code{undo-in-progress}.
1267  @end defun  @end defun
1268    
1269  @node Maintaining Undo  @node Maintaining Undo

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