From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#38587: base64-decode-region breaks encoding Date: Fri, 13 Dec 2019 09:12:54 +0200 Message-ID: <83mubw8zrd.fsf@gnu.org> References: <87blsdhzeb.fsf@mail.linkov.net> <87pngtndhd.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="252265"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 38587@debbugs.gnu.org, juri@linkov.net To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Dec 13 08:14:11 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 (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iff9O-0013Ss-02 for geb-bug-gnu-emacs@m.gmane.org; Fri, 13 Dec 2019 08:14:10 +0100 Original-Received: from localhost ([::1]:41730 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iff9M-00082x-FE for geb-bug-gnu-emacs@m.gmane.org; Fri, 13 Dec 2019 02:14:08 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:58834) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iff9H-00082k-64 for bug-gnu-emacs@gnu.org; Fri, 13 Dec 2019 02:14:04 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iff9G-0005vm-7f for bug-gnu-emacs@gnu.org; Fri, 13 Dec 2019 02:14:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:55195) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iff9G-0005vR-2K for bug-gnu-emacs@gnu.org; Fri, 13 Dec 2019 02:14:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1iff9F-0001m3-Tq for bug-gnu-emacs@gnu.org; Fri, 13 Dec 2019 02:14:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 13 Dec 2019 07:14:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 38587 X-GNU-PR-Package: emacs Original-Received: via spool by 38587-submit@debbugs.gnu.org id=B38587.15762211886688 (code B ref 38587); Fri, 13 Dec 2019 07:14:01 +0000 Original-Received: (at 38587) by debbugs.gnu.org; 13 Dec 2019 07:13:08 +0000 Original-Received: from localhost ([127.0.0.1]:32934 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iff8N-0001jn-MJ for submit@debbugs.gnu.org; Fri, 13 Dec 2019 02:13:07 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:38726) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iff8L-0001jH-OA for 38587@debbugs.gnu.org; Fri, 13 Dec 2019 02:13:06 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:51059) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1iff8G-0004E7-BM; Fri, 13 Dec 2019 02:13:00 -0500 Original-Received: from [176.228.60.248] (port=4928 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1iff8F-0003xn-An; Fri, 13 Dec 2019 02:12:59 -0500 In-reply-to: <87pngtndhd.fsf@gnus.org> (message from Lars Ingebrigtsen on Fri, 13 Dec 2019 03:52:46 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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:173244 Archived-At: > From: Lars Ingebrigtsen > Date: Fri, 13 Dec 2019 03:52:46 +0100 > Cc: 38587@debbugs.gnu.org > > > (base64-decode-string (base64-encode-string "รค")) > > => "\344" > > Well, that's not really reversible, either. > > > (the latter expression returns the right result, but inserts broken text too) > > None of these functions work on multibyte text (by design) Right. > but I see the doc strings don't mention this. (The manual does.) Let's say that in the doc strings as well. It is not easy to come up with the right text, btw, because saying just "region must be unibyte" is inaccurate; see the source of the implementation for the details. That's why the ELisp manual also doesn't say anything simple in this respect.