From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#38587: base64-decode-region breaks encoding Date: Fri, 13 Dec 2019 03:52:46 +0100 Message-ID: <87pngtndhd.fsf@gnus.org> References: <87blsdhzeb.fsf@mail.linkov.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="31287"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: 38587@debbugs.gnu.org To: Juri Linkov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Dec 13 03:53:10 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 1ifb4o-0007zD-B8 for geb-bug-gnu-emacs@m.gmane.org; Fri, 13 Dec 2019 03:53:10 +0100 Original-Received: from localhost ([::1]:40146 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ifb4m-0002QI-Hp for geb-bug-gnu-emacs@m.gmane.org; Thu, 12 Dec 2019 21:53:08 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35984) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ifb4h-0002Q6-6i for bug-gnu-emacs@gnu.org; Thu, 12 Dec 2019 21:53:04 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ifb4f-000452-Pc for bug-gnu-emacs@gnu.org; Thu, 12 Dec 2019 21:53:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:55136) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ifb4f-00044Z-LB for bug-gnu-emacs@gnu.org; Thu, 12 Dec 2019 21:53:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1ifb4f-0002Jj-JM for bug-gnu-emacs@gnu.org; Thu, 12 Dec 2019 21:53:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 13 Dec 2019 02:53:01 +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=B38587.15762055798899 (code B ref 38587); Fri, 13 Dec 2019 02:53:01 +0000 Original-Received: (at 38587) by debbugs.gnu.org; 13 Dec 2019 02:52:59 +0000 Original-Received: from localhost ([127.0.0.1]:32876 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ifb4c-0002JT-Th for submit@debbugs.gnu.org; Thu, 12 Dec 2019 21:52:59 -0500 Original-Received: from quimby.gnus.org ([95.216.78.240]:50528) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ifb4b-0002JF-0D for 38587@debbugs.gnu.org; Thu, 12 Dec 2019 21:52:57 -0500 Original-Received: from cm-84.212.202.86.getinternet.no ([84.212.202.86] helo=marnie) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ifb4R-0002XZ-BB; Fri, 13 Dec 2019 03:52:49 +0100 In-Reply-To: <87blsdhzeb.fsf@mail.linkov.net> (Juri Linkov's message of "Fri, 13 Dec 2019 01:55:56 +0200") 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:173238 Archived-At: Juri Linkov writes: > 0. emacs -Q > 1. insert a non-ASCII char, e.g. =C3=A4 > 2. select the region around the char > 3. M-x base64-encode-region > 4. select the region around the encoded text > 5. M-x base64-decode-region > > results in a broken text. IOW, base64-encode-region and base64-decode-re= gion > are not reversible, whereas their string counterparts are: > > (base64-decode-string (base64-encode-string "=C3=A4")) > =3D> "\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), but I see the doc strings don't mention this. (The manual does.) --=20 (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no