From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.bugs Subject: bug#43598: replace-in-string: finishing touches Date: Mon, 28 Sep 2020 11:40:02 +0200 Message-ID: <8B720C0F-AD35-4DCC-B935-0C2513DBFE86@acm.org> References: <77CD28C7-77C0-4DED-ACD0-21418489BADE@acm.org> <87blhuu3w9.fsf@gnus.org> <2CFAAACA-2FD3-44C2-B12E-E49DAA968115@acm.org> <87lfgyqffw.fsf@gnus.org> <2C702C6F-9E36-4BB1-A8A5-6EAD29B4E616@acm.org> <878scwaxw6.fsf@gnus.org> <87pn68vyzw.fsf@gnus.org> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="34571"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Lars Ingebrigtsen , 43598@debbugs.gnu.org To: Richard Stallman Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Sep 28 11:41:16 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 1kMpem-0008u4-47 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Mon, 28 Sep 2020 09:40:05 +0000 In-Reply-To: X-Mailer: Apple Mail (2.3445.104.17) X-CTCH-RefID: str=0001.0A782F29.5F71AF75.00B5, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.3 cv=K8Zc4BeI c=1 sm=1 tr=0 a=63Z2wlQ1NB3xHpgKFKE71g==:117 a=63Z2wlQ1NB3xHpgKFKE71g==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=mDV3o1hIAAAA:8 a=j7qoaR80LesGMiX2GnIA:9 a=CjuIK1q_8ugA:10 a=_FVE-zBwftR9WsbkzFJk:22 X-Origin-Country: SE 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:189187 Archived-At: 28 sep. 2020 kl. 05.41 skrev Richard Stallman : > It is paradoxical, but I think it is correct. > Equal compares the type of the string, not just the > characters in it. No it doesn't. (equal (string-to-multibyte "A") "A") =3D> t. There is no deep reason for the current behaviour. It's just how things = came to be, and nobody has been sufficiently annoyed to change it. The = implementation is efficient and good enough for most purposes. It is inconsistent and confusing though, and occasionally it does break = down. One such case is when two strings that are not 'equal' become = 'equal' after printing and reading them back, since unibyte and = multibyte strings have the same printed representation. This can arise = in conjunction with byte compilation. Again, I have no plans to do anything about it right now.