From owner-svn-src-head@freebsd.org  Tue Apr  4 13:25:54 2017
Return-Path: <owner-svn-src-head@freebsd.org>
Delivered-To: svn-src-head@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id A4BE4D2DCAE
 for <svn-src-head@mailman.ysv.freebsd.org>;
 Tue,  4 Apr 2017 13:25:54 +0000 (UTC)
 (envelope-from mailing-machine@vniz.net)
Received: from mail-lf0-f68.google.com (mail-lf0-f68.google.com
 [209.85.215.68])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 429B6919
 for <svn-src-head@freebsd.org>; Tue,  4 Apr 2017 13:25:54 +0000 (UTC)
 (envelope-from mailing-machine@vniz.net)
Received: by mail-lf0-f68.google.com with SMTP id r36so15560994lfi.0
 for <svn-src-head@freebsd.org>; Tue, 04 Apr 2017 06:25:54 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:subject:to:references:cc:from:message-id:date
 :user-agent:mime-version:in-reply-to:content-transfer-encoding;
 bh=8xjaCz12ykPgPOTsIVLgq2tH2knyRAecQARCjIlSmWE=;
 b=ek73XOZp2a4QXd1/It4qGY6up9Ds1g+cXLgdx0bvvuh+YCjvLT+NHVQexGRoonDnSo
 dof5pRhyZsqw5Jusy5fSfu/x5T3Vgrm709FgLQVJZace0hRpOS/GKmk5LzZHY6jkonU9
 rqkg/7BbbkY/3LOiWD11BVKJeHh2qDpln+xOAmXos7YR6ENHu4FAChlgkazDMx3iXT6o
 M3wZKOoNaA24XHHiuynpWcD0ari/swd6S1U1wMSHPrwY3XQ1Gw3k3niFhPUA2EjCERTN
 dotYgS448qXcmTWIAgj50URnAV7RD+MuONT5mU5Y9cfydfoLhkw7vOAHTVsI3qsVYLdL
 P42A==
X-Gm-Message-State: AFeK/H2bSOAcSpKWEWwoJD85feSwQFq4D6by0e161K8lavdX/w31/sN/1c+d9BXdrYnz6Q==
X-Received: by 10.25.41.11 with SMTP id p11mr6960315lfp.154.1491312352382;
 Tue, 04 Apr 2017 06:25:52 -0700 (PDT)
Received: from [192.168.1.2] ([89.169.173.68])
 by smtp.gmail.com with ESMTPSA id 187sm3163680ljf.32.2017.04.04.06.25.51
 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
 Tue, 04 Apr 2017 06:25:51 -0700 (PDT)
Subject: Re: svn commit: r316477 - head/usr.bin/grep
To: Bruce Evans <brde@optusnet.com.au>
References: <201704032316.v33NGpbo037305@repo.freebsd.org>
 <4ceb1a18-3a72-c0e3-b2e2-f71d687cd153@freebsd.org>
 <20170404222532.X2274@besplex.bde.org>
Cc: Ed Maste <emaste@freebsd.org>, src-committers@freebsd.org,
 svn-src-all@freebsd.org, svn-src-head@freebsd.org
From: Andrey Chernov <ache@freebsd.org>
Message-ID: <7f84df5f-10ef-5522-1ac2-b8bec5b3bcaa@freebsd.org>
Date: Tue, 4 Apr 2017 16:25:51 +0300
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101
 Thunderbird/45.8.0
MIME-Version: 1.0
In-Reply-To: <20170404222532.X2274@besplex.bde.org>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
 <svn-src-head.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head/>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 04 Apr 2017 13:25:54 -0000

On 04.04.2017 16:05, Bruce Evans wrote:
> This might be to work around a bug in a terminal driver.  I needed the
> 0 (but just one) to reset the attributes in my attribute tests, on at
> least 1 of the tested terminals (current sc, current vt, old sc, old
> xterm, old cygwin xterm).  CSI m seems to be working for sc now, and the
> teken code looks OK.

I never meet such one. Even most earlier specs tells about CSI m and it
works in sc from its first day. You can check how often CSI m used by
inspecting /etc/termcap changes, there is no 00 too.