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; Remove outdated text describing overlays

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* doc/lispref/display.texi (Overlays): Remove outdated text.
(Bug#59996)
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Eli Zaretskii 2022-12-12 15:37:49 +02:00
parent 081bf58300
commit 19ef86f775
1 changed files with 1 additions and 11 deletions
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doc/lispref/display.texi
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@ -1462,17 +1462,7 @@ object that belongs to a particular buffer, and has a specified
beginning and end. It also has properties that you can examine and set; beginning and end. It also has properties that you can examine and set;
these affect the display of the text within the overlay. these affect the display of the text within the overlay.
@cindex scalability of overlays Editing the text of the buffer adjusts the beginning and end of each
@cindex overlays, scalability
The visual effect of an overlay is the same as of the corresponding
text property (@pxref{Text Properties}). However, due to a different
implementation, overlays generally don't scale well (many operations
take a time that is proportional to the number of overlays in the
buffer). If you need to affect the visual appearance of many portions
in the buffer, we recommend using text properties.
An overlay uses markers to record its beginning and end; thus,
editing the text of the buffer adjusts the beginning and end of each
overlay so that it stays with the text. When you create the overlay, overlay so that it stays with the text. When you create the overlay,
you can specify whether text inserted at the beginning should be you can specify whether text inserted at the beginning should be
inside the overlay or outside, and likewise for the end of the overlay. inside the overlay or outside, and likewise for the end of the overlay.