> Since the working text is not the final text to insert to buffer, how about displaying it using after-string property of overlay? Such as:
>
> (overlay-put (setq ns-working-overlay (make-overlay start (point)))
> ‘after-string (propertize ns-working-text ‘face 'ns-working-text-face))
I did it. It is good undo behavior.
After this, working text appears in read-only buffer. (Mac port-like
behavior)
--
tsuucat