Re: How to disable undo recording within a defun?

[Michael Heerdegen]

Stefan Monnier via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> writes:

> So maybe you're looking for `with-silent-modifications` which can be
> used when the modifications to the buffer are "negligible" (typically
> in the sense that they don't affect what would get saved into the file).

Another guess is that the OP wants multiple buffer changes to become a
single undo item.  Doable with change group amalgamating:

 (info "(elisp) Atomic Changes")

Michael.