GNU bug report logs - #64696
30.0.50; indent-to inherits preceding text properties, including 'invisible

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Ihor Radchenko <yantar92 <at> posteo.net>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 64696 <at> debbugs.gnu.org
Subject: bug#64696: 30.0.50; indent-to inherits preceding text properties, including 'invisible
Date: Sat, 22 Jul 2023 09:32:22 -0400

> ⛔ Warning (emacs): Test #2:: ’word’ is inside folded heading (hidden using overlays).
> ⛔ Warning (emacs): Moved point after first ’word’
> ⛔ Warning (emacs): 1:: current-column = 4
>
> Test #2 is unexpected - we are inside invisible region, but
> current-column reports as if everything were visible.

Side note: `current-column` treats invisible text differently
depending on whether it's replaced by ellipses or not.

This was done so that reindenting a region or a sexp doesn't go haywire
when part of the region is currently hidden by code folding.

I now think that relying on "ellipses or not" was not a great idea
(there are ellipses which `current-column` should count as the width of
the ellipsis rather than the width of the hidden text, e.g. when
ellipses are used to truncate cells in a table).


        Stefan

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