From unknown Fri Aug 08 15:18:51 2025 X-Loop: help-debbugs@gnu.org Subject: bug#18427: Fwd: 'less' bug report Resent-From: J B Original-Sender: "Debbugs-submit" Resent-CC: bug-gzip@gnu.org Resent-Date: Mon, 08 Sep 2014 17:18:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 18427 X-GNU-PR-Package: gzip X-GNU-PR-Keywords: To: 18427@debbugs.gnu.org Cc: selinger@users.sf.net X-Debbugs-Original-To: bug-gzip@gnu.org Received: via spool by submit@debbugs.gnu.org id=B.141019667312125 (code B ref -1); Mon, 08 Sep 2014 17:18:01 +0000 Received: (at submit) by debbugs.gnu.org; 8 Sep 2014 17:17:53 +0000 Received: from localhost ([127.0.0.1]:34053 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XR2Zc-00039T-FN for submit@debbugs.gnu.org; Mon, 08 Sep 2014 13:17:53 -0400 Received: from eggs.gnu.org ([208.118.235.92]:37917) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XR2Tr-00030G-Af for submit@debbugs.gnu.org; Mon, 08 Sep 2014 13:11:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XR2Tl-00043O-2q for submit@debbugs.gnu.org; Mon, 08 Sep 2014 13:11:50 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50,FREEMAIL_FROM, HTML_MESSAGE,T_DKIM_INVALID autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:41235) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XR2Tl-00043G-0Y for submit@debbugs.gnu.org; Mon, 08 Sep 2014 13:11:49 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39542) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XR2Ti-00041I-9d for bug-gzip@gnu.org; Mon, 08 Sep 2014 13:11:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XR2Td-0003yd-Fj for bug-gzip@gnu.org; Mon, 08 Sep 2014 13:11:46 -0400 Received: from mail-qg0-x22d.google.com ([2607:f8b0:400d:c04::22d]:59769) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XR2Td-0003y3-7P for bug-gzip@gnu.org; Mon, 08 Sep 2014 13:11:41 -0400 Received: by mail-qg0-f45.google.com with SMTP id j107so2648634qga.18 for ; Mon, 08 Sep 2014 10:11:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=2hQ4PHhPDtK6LvYhy4iifXOdYegCJU30AJQxWAsX4P0=; b=qhCtx3llhvCXfSamJW0MOg9ANroyfGUjqJMTQhHz9mpm6d6yzXeo8FTZMdlxMf83KT 0xhtl1qsTqoJHqvzpNkJ3YMctUYH3n3xTSs2Jy+QBeAVcUOAjbKaG1PJiDti2X1CkEDm njbkDMMzj0x+B9Le21/m7cuyYsMGk7uwgNlPHThBBxKP1r5bER+6S9Kf/22poLt7Uf2I Ey9mOaejUQYktH5HPOhBnpQqyFOUq5yVYvIpIC1IwHODgWQyL+j9FqK4xjBITSP9xpQc mI1w1eAeldnBUXrl7WrZRLlklRZzOK5DgAq8Muq3hp+qM3nki4GEpaPwVNPg9PNIq2ZI jO2Q== MIME-Version: 1.0 X-Received: by 10.224.86.5 with SMTP id q5mr44540511qal.36.1410196300126; Mon, 08 Sep 2014 10:11:40 -0700 (PDT) Received: by 10.96.215.164 with HTTP; Mon, 8 Sep 2014 10:11:40 -0700 (PDT) In-Reply-To: <540DD147.30102@greenwoodsoftware.com> References: <540DD147.30102@greenwoodsoftware.com> Date: Mon, 8 Sep 2014 19:11:40 +0200 Message-ID: From: J B Content-Type: multipart/alternative; boundary=001a11c2c172885fe3050290e947 X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -4.0 (----) X-Mailman-Approved-At: Mon, 08 Sep 2014 13:17:51 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -4.0 (----) --001a11c2c172885fe3050290e947 Content-Type: text/plain; charset=UTF-8 Hi, could you please fix the 'zless' bug described. 'less' ver. 451 log; Use exit code of LESSOPEN script if LESSOPEN starts with "||". Thanks, jb ---------- Forwarded message ---------- From: Mark Nudelman Date: Mon, Sep 8, 2014 at 5:54 PM Subject: Re: 'less' bug report To: J B Hi jb, This was fixed in less-451 with the introduction of the double pipe syntax in LESSOPEN. It requires your lessopen script to return the appropriate exit code. --Mark On 9/8/2014 7:31 AM, J B wrote: > Hi, > this is a bug report for 'less' entry. > > $ touch empty.txt > $ less empty.txt > empty.txt (END) > $ gzip empty.txt > $ zless empty.txt.gz > "empty.txt.gz" may be a binary file. See it anyway? > > The last response should be as for 'less empty.txt'. > According to Peter Selinger, author of ccrypt utilities: > "The problem is that less, when using an input filter, regards an empty > file > as a condition indicating "filtering unsuccessful", and will just show > the unfiltered file instead." > This 'less' behavior causes a problem for other utilities as well. > > jb > --001a11c2c172885fe3050290e947 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi,
could you please fi= x the 'zless' bug described.

'less' ver. 451 log;Use exit code of LESSOPEN script if LESSOPEN starts with "||".

Thanks,
jb


---------- Forwarded message ----------
From: Mark Nudelman <markn@greenwoodso= ftware.com>
Date: Mon, Sep 8, 2014 at 5:54 PM
Subject: = Re: 'less' bug report
To: J B <jb.1234abcd@gmail.com>


Hi jb= ,
This was fixed in less-451 with the introduction of the double pipe
syntax in LESSOPEN.=C2=A0 It requires your lessopen script to return the appropriate exit code.

--Mark

On 9/8/2014 7:31 AM, J B wrote:
> Hi,
> this is a bug report for 'less' entry.
>
> $ touch empty.txt
> $ less empty.txt
> empty.txt (END)
> $ gzip empty.txt
> $ zless empty.txt.gz
> "empty.txt.gz" may be a binary file.=C2=A0 See it anyway? >
> The last response should be as for 'less empty.txt'.
> According to Peter Selinger, author of ccrypt utilities:
> "The problem is that less, when using an input filter, regards an= empty
> file
> as a condition indicating "filtering unsuccessful", and will= just show
> the unfiltered file instead."
> This 'less' behavior causes a problem for other utilities as w= ell.
>
> jb
>

--001a11c2c172885fe3050290e947-- From unknown Fri Aug 08 15:18:51 2025 X-Loop: help-debbugs@gnu.org Subject: bug#18427: Fwd: 'less' bug report Resent-From: Paul Eggert Original-Sender: "Debbugs-submit" Resent-CC: bug-gzip@gnu.org Resent-Date: Mon, 08 Sep 2014 21:16:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18427 X-GNU-PR-Package: gzip X-GNU-PR-Keywords: To: J B , 18427@debbugs.gnu.org Cc: selinger@users.sf.net Received: via spool by 18427-submit@debbugs.gnu.org id=B18427.14102109261569 (code B ref 18427); Mon, 08 Sep 2014 21:16:01 +0000 Received: (at 18427) by debbugs.gnu.org; 8 Sep 2014 21:15:26 +0000 Received: from localhost ([127.0.0.1]:34115 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XR6HV-0000PE-At for submit@debbugs.gnu.org; Mon, 08 Sep 2014 17:15:25 -0400 Received: from smtp.cs.ucla.edu ([131.179.128.62]:57337) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XR6HS-0000Ou-98 for 18427@debbugs.gnu.org; Mon, 08 Sep 2014 17:15:23 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.cs.ucla.edu (Postfix) with ESMTP id A188D39E8014; Mon, 8 Sep 2014 14:15:16 -0700 (PDT) X-Virus-Scanned: amavisd-new at smtp.cs.ucla.edu Received: from smtp.cs.ucla.edu ([127.0.0.1]) by localhost (smtp.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fqrKEjam8srM; Mon, 8 Sep 2014 14:15:12 -0700 (PDT) Received: from penguin.cs.ucla.edu (Penguin.CS.UCLA.EDU [131.179.64.200]) by smtp.cs.ucla.edu (Postfix) with ESMTPSA id DC4F539E8013; Mon, 8 Sep 2014 14:15:11 -0700 (PDT) Message-ID: <540E1C5F.60106@cs.ucla.edu> Date: Mon, 08 Sep 2014 14:15:11 -0700 From: Paul Eggert Organization: UCLA Computer Science Department User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.7.0 MIME-Version: 1.0 References: <540DD147.30102@greenwoodsoftware.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.8 (----) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -4.8 (----) This appears to be a duplicate of Bug#16951, which should mean that your test should work in the next gzip release but some related bugs remain. Please see: http://bugs.gnu.org/16951 From debbugs-submit-bounces@debbugs.gnu.org Mon Sep 08 17:16:57 2014 Received: (at control) by debbugs.gnu.org; 8 Sep 2014 21:16:57 +0000 Received: from localhost ([127.0.0.1]:34119 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XR6Iy-0000Rf-O0 for submit@debbugs.gnu.org; Mon, 08 Sep 2014 17:16:57 -0400 Received: from smtp.cs.ucla.edu ([131.179.128.62]:57415) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XR6Iv-0000RR-R4 for control@debbugs.gnu.org; Mon, 08 Sep 2014 17:16:54 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.cs.ucla.edu (Postfix) with ESMTP id 80A1939E8018 for ; Mon, 8 Sep 2014 14:16:48 -0700 (PDT) X-Virus-Scanned: amavisd-new at smtp.cs.ucla.edu Received: from smtp.cs.ucla.edu ([127.0.0.1]) by localhost (smtp.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id c0tlBs8faful for ; Mon, 8 Sep 2014 14:16:40 -0700 (PDT) Received: from penguin.cs.ucla.edu (Penguin.CS.UCLA.EDU [131.179.64.200]) by smtp.cs.ucla.edu (Postfix) with ESMTPSA id D1AAF39E8016 for ; Mon, 8 Sep 2014 14:16:40 -0700 (PDT) Message-ID: <540E1CB8.8050006@cs.ucla.edu> Date: Mon, 08 Sep 2014 14:16:40 -0700 From: Paul Eggert Organization: UCLA Computer Science Department User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.7.0 MIME-Version: 1.0 To: control@debbugs.gnu.org Subject: 18427 is a duplicate of 16951 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.8 (----) X-Debbugs-Envelope-To: control X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -4.8 (----) merge 16951 18427