From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs 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 Message-ID: References: <878uucaun0.fsf@bzg.ath.cx> <871u01zs19.fsf@mail.jurta.org> <87r481fuvk.fsf@bzg.ath.cx> <87k3dtl8lp.fsf@bzg.ath.cx> <87ppcwxiv9.fsf@mail.jurta.org> <87h9xw7puw.fsf@bzg.ath.cx> <87bno3vae9.fsf@bzg.ath.cx> <87zi1nl812.fsf@bzg.fr> <87wowql4sd.fsf@bzg.fr> <87y33snmam.fsf@gmail.com> <87sgtzof4s.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="195475"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: Bastien , 16493@debbugs.gnu.org To: Noam Postavsky Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Apr 30 14:47:31 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hLSAU-000ohw-NA for geb-bug-gnu-emacs@m.gmane.org; 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Tue, 30 Apr 2019 08:45:55 -0400 (EDT) In-Reply-To: <87sgtzof4s.fsf@gmail.com> (Noam Postavsky's message of "Tue, 30 Apr 2019 08:24:03 -0400") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:158489 Archived-At: >> 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.