GNU logs - #31071, boring messages

Message sent to bug-grep@HIDDEN:

Subject: bug#31071: Previous color lost when using --color=always option
Resent-From: Adrian H <adrianh.bsc@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-grep@HIDDEN
Resent-Date: Thu, 05 Apr 2018 21:32:01 +0000
Resent-Message-ID: <handler.31071.B.152296388420763 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: 31071 <at> debbugs.gnu.org
MIME-Version: 1.0
From: Adrian H <adrianh.bsc@HIDDEN>
Date: Thu, 5 Apr 2018 12:44:29 -0400
Message-ID: <CAP_kE8V9A1Oj9B=1UnKQTU6j44XG8L=WrToy6iZniA-Q2Hc+sw@HIDDEN>
Content-Type: text/plain; charset="UTF-8"
Precedence: list
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>

If I use grep --color=always and it matches on a line that is already
coloured, it results in the text after the match is reset to the
terminal's default colour/attributes.  E.g.

This just shows a line with some colour/attributes set:

  $ echo The quick brown fox jumps over the lazy dog |
  > GREP_COLOR='03;36' grep --color=always '.*'
  ESC[03;36mESC[KThe quick brown fox jumps over the lazy dogESC[mESC[K

This shows the same line with fox highlighted in other attributes:

  $ echo The quick brown fox jumps over the lazy dog |
  >  GREP_COLOR='03;36' grep --color=always '.*' |
  >  GREP_COLOR='01;36' grep --color=always 'fox'
  ESC[03;36mESC[KThe quick brown ESC[01;36mESC[KfoxESC[mESC[K jumps
over the lazy dogESC[mESC[K

The issue is that the current colour isn't tracked, it is just reset
with ESC[m.  It would be nice if it were able to be tracked.  Yes, it
is more difficult to code, but I think it would be useful when
highlighting a coloured textual document.

Message sent:

Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Mailer: MIME-tools 5.505 (Entity 5.505)
Content-Type: text/plain; charset=utf-8
X-Loop: help-debbugs@HIDDEN
From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Adrian H <adrianh.bsc@HIDDEN>
Subject: bug#31071: Acknowledgement (Previous color lost when using
 --color=always option)
Message-ID: <handler.31071.B.152296388420763.ack <at> debbugs.gnu.org>
References: <CAP_kE8V9A1Oj9B=1UnKQTU6j44XG8L=WrToy6iZniA-Q2Hc+sw@HIDDEN>
X-Gnu-PR-Message: ack 31071
X-Gnu-PR-Package: grep
Reply-To: 31071 <at> debbugs.gnu.org
Date: Thu, 05 Apr 2018 21:32:01 +0000

Thank you for filing a new bug report with debbugs.gnu.org.

This is an automatically generated reply to let you know your message
has been received.

Your message is being forwarded to the package maintainers and other
interested parties for their attention; they will reply in due course.

Your message has been sent to the package maintainer(s):
 bug-grep@HIDDEN

If you wish to submit further information on this problem, please
send it to 31071 <at> debbugs.gnu.org.

Please do not send mail to help-debbugs@HIDDEN unless you wish
to report a problem with the Bug-tracking system.

--=20
31071: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D31071
GNU Bug Tracking System
Contact help-debbugs@HIDDEN with problems

Message received at control <at> debbugs.gnu.org:

Received: (at control) by debbugs.gnu.org; 1 Jan 2020 07:37:18 +0000
From debbugs-submit-bounces <at> debbugs.gnu.org Wed Jan 01 02:37:18 2020
Received: from localhost ([127.0.0.1]:35563 helo=debbugs.gnu.org)
	by debbugs.gnu.org with esmtp (Exim 4.84_2)
	(envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>)
	id 1imYZC-0006Ee-4i
	for submit <at> debbugs.gnu.org; Wed, 01 Jan 2020 02:37:18 -0500
Received: from zimbra.cs.ucla.edu ([131.179.128.68]:48300)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <eggert@HIDDEN>) id 1imYZB-0006ET-1p
 for control <at> debbugs.gnu.org; Wed, 01 Jan 2020 02:37:17 -0500
Received: from localhost (localhost [127.0.0.1])
 by zimbra.cs.ucla.edu (Postfix) with ESMTP id AB1BB16008F
 for <control <at> debbugs.gnu.org>; Tue, 31 Dec 2019 23:37:11 -0800 (PST)
Received: from zimbra.cs.ucla.edu ([127.0.0.1])
 by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032)
 with ESMTP id PwfeHVNC3A9v for <control <at> debbugs.gnu.org>;
 Tue, 31 Dec 2019 23:37:11 -0800 (PST)
Received: from localhost (localhost [127.0.0.1])
 by zimbra.cs.ucla.edu (Postfix) with ESMTP id 1EBA116022A
 for <control <at> debbugs.gnu.org>; Tue, 31 Dec 2019 23:37:11 -0800 (PST)
X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu
Received: from zimbra.cs.ucla.edu ([127.0.0.1])
 by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026)
 with ESMTP id 4ogbINDYPaNn for <control <at> debbugs.gnu.org>;
 Tue, 31 Dec 2019 23:37:11 -0800 (PST)
Received: from [192.168.1.9] (cpe-23-242-74-103.socal.res.rr.com
 [23.242.74.103])
 by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id F394D16008F
 for <control <at> debbugs.gnu.org>; Tue, 31 Dec 2019 23:37:10 -0800 (PST)
To: control <at> debbugs.gnu.org
From: Paul Eggert <eggert@HIDDEN>
Subject: 31071 is wishlist
Organization: UCLA Computer Science Department
Message-ID: <34ab972e-83fc-d700-69f0-6429aff215a4@HIDDEN>
Date: Tue, 31 Dec 2019 23:37:10 -0800
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
 Thunderbird/68.2.2
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
X-Spam-Score: -2.3 (--)
X-Debbugs-Envelope-To: control
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -3.3 (---)

severity 31071 wishlist

Last modified: Wed, 1 Jan 2020 07:45:02 UTC

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997 nCipher Corporation Ltd, 1994-97 Ian Jackson.