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#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28? Date: Thu, 24 Mar 2022 18:59:09 +0200 Message-ID: <83h77ncmn6.fsf@gnu.org> References: <87bkxzdccp.fsf@gmail.com> <83fsnbfd72.fsf@gnu.org> <8735jbc6gj.fsf@gmail.com> <6095582d-7065-8089-e8c7-857f070f8ce2@yandex.ru> <87y212b9nt.fsf@gmail.com> <83a6difahu.fsf@gnu.org> <835yo6f5tu.fsf@gnu.org> <834k3qf48k.fsf@gnu.org> <87r16uavhm.fsf@gmail.com> <83zglidnbs.fsf@gnu.org> <83y212dj2w.fsf@gnu.org> <83mthhe3rp.fsf@gnu.org> <87fsn9f07t.fsf@gmail.com> <83bkxweomr.fsf@gnu.org> <877d8jfl85.fsf@gmail.com> <83ils3cqsq.fsf@gnu.org> <87ils3e3rk.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="12212"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 54488@debbugs.gnu.org, dgutov@yandex.ru To: =?UTF-8?Q?Jo=C3=A3o_?= =?UTF-8?Q?T=C3=A1vora?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Mar 24 18:01:19 2022 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 1nXQpq-000322-Bq for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 24 Mar 2022 18:01:18 +0100 Original-Received: from localhost ([::1]:57502 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nXQpp-0005iz-73 for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 24 Mar 2022 13:01:17 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:40518) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nXQoe-0005hG-Ak for bug-gnu-emacs@gnu.org; Thu, 24 Mar 2022 13:00:04 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:55401) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nXQoe-0004Ly-1Y for bug-gnu-emacs@gnu.org; Thu, 24 Mar 2022 13:00:04 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1nXQod-0001Fl-0q for bug-gnu-emacs@gnu.org; Thu, 24 Mar 2022 13:00:03 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 24 Mar 2022 17:00:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 54488 X-GNU-PR-Package: emacs Original-Received: via spool by 54488-submit@debbugs.gnu.org id=B54488.16481411684729 (code B ref 54488); Thu, 24 Mar 2022 17:00:02 +0000 Original-Received: (at 54488) by debbugs.gnu.org; 24 Mar 2022 16:59:28 +0000 Original-Received: from localhost ([127.0.0.1]:49298 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nXQo3-0001EC-TM for submit@debbugs.gnu.org; Thu, 24 Mar 2022 12:59:28 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:52674) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nXQny-0001Dw-D8 for 54488@debbugs.gnu.org; Thu, 24 Mar 2022 12:59:26 -0400 Original-Received: from [2001:470:142:3::e] (port=33182 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nXQnt-0004H9-1r; Thu, 24 Mar 2022 12:59:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=2j7y8ToSJdML4uWZyNQwfgBnDP1R/OLzdiqrSwBby70=; b=oVZI1V8MVDQQs0ZVj3V9 xQP8k00NK14GybG2GrElvKK3Zh/4oDwmnlncTSMp2q56G07ylhLIc5xntU7Pgwylhw06CZnqur9ZX XrSGnNAxqv7gCyLIPysf8I1mWkRXLryhMIWr5xw9u3vuG3NEVb177Z0VoXqa7QZRDW5Jd80ttk10g u4esvmVCSGLhQoidyak740vZzANx/lgvMzCWOJSWlinhX6h9kkYMlVMGhghMIrRDHGvT9UusxZ8Ck WPd8rwnEuIsvL1fB42+cBWQNHGlYJoZya0YxhV32KZPPfygC0fpl9oeq/ZtI6c76IH75TOiLsjQSb A+D/kQL9baJs7Q==; Original-Received: from [87.69.77.57] (port=3010 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nXQns-00075T-I5; Thu, 24 Mar 2022 12:59:16 -0400 In-Reply-To: <87ils3e3rk.fsf@gmail.com> (message from =?UTF-8?Q?Jo=C3=A3o_?= =?UTF-8?Q?T=C3=A1vora?= on Thu, 24 Mar 2022 16:03:59 +0000) 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:228885 Archived-At: > From: João Távora > Cc: dgutov@yandex.ru, 54488@debbugs.gnu.org > Date: Thu, 24 Mar 2022 16:03:59 +0000 > > Eli Zaretskii writes: > > >> An interesting one, though. I think I follow. Is there some easy way > >> in Emacs to measure how many UTF-16 code units a given codepoint takes? > > > > That's easy: any codepoint above #xFFFF needs 2 UTF-16 code units. > > >> I'm afraid I evicted this knowledge from the cache since I made that fix > >> 2,5 years ago... Is a "codepoint" here a character in a string/buffer? > > > > Yes. > > Indeed seems easy enough :-). So > > (defun measure (s) (cl-loop for c across s sum (if (> c #xFFFF) 2 1))) > > ? Yes, I think so.