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Re: Overlay mechanic improvements

From: Richard Stallman
Subject: Re: Overlay mechanic improvements
Date: Sun, 21 Sep 2014 09:35:35 -0400

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    preview-latex <URL:http://www.gnu.org/software/auctex/preview-latex>
    extensively uses overlays (and they can easily grow to a few thousand
    per document in a mathematically oriented paper),

How many overlays would appear on one screen?

    Quadratic behavior for the markers used as start- and end markers is
    clearly undesirable.

The existing code should be fat if you recenter the overlays
frequently at point, unless you have lots of overlays on one screen.
Do you recenter them?  If so, why is it slow?

Why aren't text properties right for this?

Dr Richard Stallman
President, Free Software Foundation
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Boston MA 02110
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