From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#42347: Feature request: Visual block attribute for overlays Date: Tue, 14 Jul 2020 17:55:13 +0300 Message-ID: <83eepem9im.fsf@gnu.org> References: <83k0z6n7w6.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="15922"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 42347@debbugs.gnu.org To: Gregory Heytings Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue Jul 14 16:56:13 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jvMLt-00042u-3Z for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 14 Jul 2020 16:56:13 +0200 Original-Received: from localhost ([::1]:42608 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jvMLs-0000Cj-4i for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 14 Jul 2020 10:56:12 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:32804) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jvMLi-0000Ac-JF for bug-gnu-emacs@gnu.org; Tue, 14 Jul 2020 10:56:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:39777) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jvMLi-0005LG-8N for bug-gnu-emacs@gnu.org; Tue, 14 Jul 2020 10:56:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jvMLi-0000k7-6t for bug-gnu-emacs@gnu.org; Tue, 14 Jul 2020 10:56:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 14 Jul 2020 14:56:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 42347 X-GNU-PR-Package: emacs Original-Received: via spool by 42347-submit@debbugs.gnu.org id=B42347.15947385272814 (code B ref 42347); Tue, 14 Jul 2020 14:56:02 +0000 Original-Received: (at 42347) by debbugs.gnu.org; 14 Jul 2020 14:55:27 +0000 Original-Received: from localhost ([127.0.0.1]:51323 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jvML9-0000jK-03 for submit@debbugs.gnu.org; Tue, 14 Jul 2020 10:55:27 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:46884) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jvML7-0000j2-Rb for 42347@debbugs.gnu.org; Tue, 14 Jul 2020 10:55:26 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:60785) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jvML2-00052A-BU; Tue, 14 Jul 2020 10:55:20 -0400 Original-Received: from [176.228.60.248] (port=3157 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jvMKy-0002gz-Kz; Tue, 14 Jul 2020 10:55:18 -0400 In-Reply-To: (bug-gnu-emacs@gnu.org) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:182991 Archived-At: > Date: Tue, 14 Jul 2020 07:38:38 +0000 > From: Gregory Heytings via "Bug reports for GNU Emacs, > the Swiss army knife of text editors" > > >> 2. remove all pixel columns on the right *and on the left* of the > >> overlay which have no "content" (that is, no characters on the right, > >> and whitespace characters on the left). > > > > What would be the definition of "whitespace" for this purpose? > > > > I think the regexp "[ \t\r\n]*" would be appropriate. Are you sure? First, \r doesn't happen in Emacs buffers, and \n is the newline, so it isn't on the same line. Next, what about \f, and more generally about any other sequence of characters that match [:blank:]? And finally, what about stretches of whitespace generated by the 'space' display properties?