[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#16493: 24.3.50; (setq search-invisible t) is useless, let's allow to
From: |
Stefan Monnier |
Subject: |
bug#16493: 24.3.50; (setq search-invisible t) is useless, let's allow to turn visible-mode temporarily on |
Date: |
Tue, 30 Apr 2019 08:45:54 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
>> You can do
>>
>> (overlay-put OVERLAY 'invisible 'visible)
>>
>> to get the same result without far-reaching changes to the C code.
>
> Um, no, that gives the opposite effect.
>
> (let ((p (point))
> overlay)
> (insert "(" (propertize "invisible" 'invisible t) ")")
> (setq overlay (make-overlay p (point)))
> ;; All text, including parens, becomes invisible.
> (overlay-put overlay 'invisible 'visible))
You need to use `add-to-invisibility-spec` before that works. E.g.:
(add-to-invisibility-spec 'dummy)
that's because of a quirk of the way we treat `invisible` and the
`buffer-invisibility-spec`.
Stefan
PS: To fix this quirk, we should change buffer-invisibility-spec's
default value to nil (or `(t)`, maybe) instead of t.