From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail
From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.help
Subject: Re: Edit binaries - insert
Date: Fri, 06 Nov 2020 07:43:41 +0200
Message-ID: <83361n9h0y.fsf@gnu.org>
References: <ro1008$qe2$1@ciao.gmane.io> <83y2jfanmy.fsf@gnu.org>
 <16b4b789-3492-5633-d57b-9f8244699e9e@us.ibm.com>
Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214";
	logging-data="28861"; mail-complaints-to="usenet@ciao.gmane.io"
To: help-gnu-emacs@gnu.org
Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Nov 06 06:44:21 2020
Return-path: <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org>
Envelope-to: geh-help-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 <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org>)
	id 1kauXs-0007RI-O1
	for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 06 Nov 2020 06:44:20 +0100
Original-Received: from localhost ([::1]:45344 helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org>)
	id 1kauXr-0003vg-R6
	for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 06 Nov 2020 00:44:19 -0500
Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46020)
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <eliz@gnu.org>) id 1kauXH-0003vU-E7
 for help-gnu-emacs@gnu.org; Fri, 06 Nov 2020 00:43:43 -0500
Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:46948)
 by eggs.gnu.org with esmtp (Exim 4.90_1)
 (envelope-from <eliz@gnu.org>) id 1kauXH-0004Yh-5L
 for help-gnu-emacs@gnu.org; Fri, 06 Nov 2020 00:43:43 -0500
Original-Received: from [176.228.60.248] (port=1888 helo=home-c4e4a596f7)
 by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256)
 (Exim 4.82) (envelope-from <eliz@gnu.org>) id 1kauXG-0006VY-Je
 for help-gnu-emacs@gnu.org; Fri, 06 Nov 2020 00:43:42 -0500
In-Reply-To: <16b4b789-3492-5633-d57b-9f8244699e9e@us.ibm.com> (message from
 Ken Goldman on Thu, 5 Nov 2020 22:25:52 -0500)
X-BeenThere: help-gnu-emacs@gnu.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: Users list for the GNU Emacs text editor <help-gnu-emacs.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/help-gnu-emacs>,
 <mailto:help-gnu-emacs-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/help-gnu-emacs>
List-Post: <mailto:help-gnu-emacs@gnu.org>
List-Help: <mailto:help-gnu-emacs-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/help-gnu-emacs>,
 <mailto:help-gnu-emacs-request@gnu.org?subject=subscribe>
Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org
Original-Sender: "help-gnu-emacs"
 <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org>
Xref: news.gmane.io gmane.emacs.help:125049
Archived-At: <http://permalink.gmane.org/gmane.emacs.help/125049>

> From: Ken Goldman <kgoldman@us.ibm.com>
> Date: Thu, 5 Nov 2020 22:25:52 -0500
> 
> >> Is there a mode to edit binaries and insert and delete bytes.  I know
> >> about hexl-mode, but AFAIK it only supports overwrite.
> > 
> > "M-x find-file-literally RET FILE-NAME RET" and edit as you like.
> 
> That works, but the binary doesn't display the hex values.  Just lots of
> \nnn values.  So it's impractical to find the byte location.

You never said you want the bytes displayed in hex.  You can set
display-raw-bytes-as-hex to have them shown in hex instead of in
octal.