[Emacs-diffs] Changes to emacs/lispref/text.texi

[Richard M . Stallman]

Index: emacs/lispref/text.texi
diff -c emacs/lispref/text.texi:1.79 emacs/lispref/text.texi:1.80
*** emacs/lispref/text.texi:1.79        Fri Oct 22 13:15:12 2004
--- emacs/lispref/text.texi     Fri Dec  3 11:27:02 2004
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*** 1244,1249 ****
--- 1244,1255 ----
  undo individual replacements one by one.
  @end defun
  
+ @defvar undo-in-progress
+ This variable is normally @code{nil}, but the undo commands bind it to
+ @code{t}.  This is so that various kinds of change hooks can tell when
+ they're being called for the sake of undoing.
+ @end defvar
+ 
  @defun primitive-undo count list
  This is the basic function for undoing elements of an undo list.
  It undoes the first @var{count} elements of @var{list}, returning
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*** 1256,1261 ****
--- 1262,1269 ----
  undo operations use and update the saved value.  The new elements added
  by undoing are not part of this saved value, so they don't interfere with
  continuing to undo.
+ 
+ This function does not bind @code{undo-in-progress}.
  @end defun
  
  @node Maintaining Undo