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#48324: 27.2; hexl-mode duplicates the UTF-8 BOM Date: Mon, 10 May 2021 20:51:38 +0300 Message-ID: <83k0o65vf9.fsf@gnu.org> References: <0ed1c9c7-26c1-b801-1910-6d5bb50dec3d@yahoo.de> <46c6dd22-ecff-aa7d-e019-1784060574c2@yahoo.de> <83zgx265bm.fsf@gnu.org> <83sg2u5zz5.fsf@gnu.org> <87fsyur1rx.fsf@gnus.org> <87fsyu4jof.fsf@igel.home> <83lf8m5x2c.fsf@gnu.org> <35838176-9518-6c4a-eb71-25ce7cb0ec4e@yahoo.de> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="7525"; mail-complaints-to="usenet@ciao.gmane.io" Cc: larsi@gnus.org, schwab@linux-m68k.org, 48324@debbugs.gnu.org To: "R. Diez" Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon May 10 19:52:09 2021 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 1lgA4f-0001pa-2j for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 10 May 2021 19:52:09 +0200 Original-Received: from localhost ([::1]:42232 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lgA4e-000886-5S for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 10 May 2021 13:52:08 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:50068) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lgA4Y-00087y-9N for bug-gnu-emacs@gnu.org; Mon, 10 May 2021 13:52:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:50880) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lgA4Y-0003xq-0l for bug-gnu-emacs@gnu.org; Mon, 10 May 2021 13:52:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lgA4X-00059R-Ve for bug-gnu-emacs@gnu.org; Mon, 10 May 2021 13:52:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 10 May 2021 17:52:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 48324 X-GNU-PR-Package: emacs Original-Received: via spool by 48324-submit@debbugs.gnu.org id=B48324.162066910519771 (code B ref 48324); Mon, 10 May 2021 17:52:01 +0000 Original-Received: (at 48324) by debbugs.gnu.org; 10 May 2021 17:51:45 +0000 Original-Received: from localhost ([127.0.0.1]:34193 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lgA4H-00058p-64 for submit@debbugs.gnu.org; Mon, 10 May 2021 13:51:45 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:39652) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lgA4F-00058c-KH for 48324@debbugs.gnu.org; Mon, 10 May 2021 13:51:44 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:48240) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lgA49-0003hb-3s; Mon, 10 May 2021 13:51:37 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:3237 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 1lgA48-0000KP-Ix; Mon, 10 May 2021 13:51:36 -0400 In-Reply-To: <35838176-9518-6c4a-eb71-25ce7cb0ec4e@yahoo.de> (rdiezmail-emacs@yahoo.de) 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:206183 Archived-At: > Cc: larsi@gnus.org, 48324@debbugs.gnu.org, > Andreas Schwab > From: "R. Diez" > Date: Mon, 10 May 2021 19:43:20 +0200 > > - I created an empty file with Caja (the MATE Desktop file manager) named Test7.txt . That empty file is 0 bytes long. > - I then dragged the file to Emacs in order to open it. > The default encoding is utf-8-unix (visible on Emacs' status line). > - I pressed my keyboard shortcut for (eval-expression). > - I changed the encoding by manually evaluating this expression: > (set-buffer-file-coding-system 'utf-8-with-signature-dos) > - I then typed in the buffer for Text7.txt the characters "123". > - I saved the buffer with menu "File", option "Save". > - I ran in the minibuffer command hexl-mode, which gives me the hex view for that file: > ef bb bf 31 32 33 0d 0a > - I moved the cursor with the arrow keys to the byte with value "31". > - I ran in the minibuffer command hexl-insert-hex-char, in order to overwrite the 31 with a new value. > - I typed in the minibuffer the hex value "00" (a binary null) and pressed enter. > - In the hex view, the BOM is now duplicated. Thanks, I see it now. FTR, here's a shorter and easier recipe: emacs -Q C-x C-f foo.txt RET C-x RET f utf-8-with-signature-dos RET 1 2 3 C-x C-s M-x hexl-mode RET M-x hexl-insert-hex-char RET 00 RET