Re: Overlays as an AA-tree

[Richard Stallman]

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  > I seem to recall that somebody made the suggestion earlier to make
  > overlays a special case of text properties, and then getting rid of most
  > of the low-level overlay code.

Since overlays have to be discarded whenever text is copied,
the need to go through the text properties and discard those
that are really overlays could make things substantially slower.

-- 
Dr Richard Stallman
President, Free Software Foundation (gnu.org, fsf.org)
Internet Hall-of-Famer (internethalloffame.org)
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