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From: Juri Linkov
Subject: cursor-invisible-mode
Date: Wed, 22 May 2019 23:45:05 +0300
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (x86_64-pc-linux-gnu)

There is cursor-intangible-mode in cursor-sensor.el, but I wonder why
it has no cursor-invisible-mode?  When implemented it could treat the
text that has the 'invisible' property by expanding when cursor moves
inside, and then contracting when it's out again like is demonstrated
in https://debbugs.gnu.org/35624#104

Another case where such mode could help that comes to mind is the
grep-find-abbreviate feature, where instead of pushing the button
to expand/contract the hidden part enabling cursor-invisible-mode
could expand/contract it when the cursor moves inside.

Maybe also cursor-invisible-mode could simplify the handling of 'open'
value of 'search-invisible' in isearch, not sure about that.

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