X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:message-id:from:to:mime-version
	:content-transfer-encoding:content-type:in-reply-to:references
	:subject:date; q=dns; s=default; b=p75zes+Zw1jriH5k2YNv/J8LHmBmK
	fmAYcsZDqBTNRCqWqUzri8DnJ58TFOxsIad97pyWMpS6fWk8SoKNlDD4D8pjQGsY
	C1qZYU/FWytQfwV0uZlezdJ+EBzZIIBDY4sWPYmJ3g18kR5ImyIQMyQqWR5k6GRU
	srlK/BA6FZo80c=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:message-id:from:to:mime-version
	:content-transfer-encoding:content-type:in-reply-to:references
	:subject:date; s=default; bh=c7+TIyhlXxd6LyV5/DzzgjbygM0=; b=DzU
	rwXm6xsNJGU4UTIjFrDmzR1P7fb0sAgDQdxTlddLDMhfoeVTe364JrS1XyNwXOb/
	xGo+dcAnTS4q0DliSIHcQ9wmqZSQfJGeXkVuLT1vvo1upFrOSkZZ0TbKVMHmBwRQ
	zFpwQwslgURlp/23YHhWLjqC4NH6QvhN6wpQZIWE=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Virus-Found:	No
X-Spam-SWARE-Status:	No, score=1.9 required=5.0 tests=AWL,BAYES_50,FREEMAIL_FROM,LIKELY_SPAM_SUBJECT,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=no version=3.3.2 spammy=ronald, Ronald, UD:C.UTF-8, CUTF8
X-HELO:	out1-smtp.messagingengine.com
X-ME-Sender:	<xms:Dl0lWSPN_UQe-TaQDF3fHtjZNs__RNRInY0qjJzo1S7b-shUWBrxZQ>
Message-Id:	<1495620878.1850033.986938960.3CBADAA7@webmail.messagingengine.com>
From:	Ronald Fischer <ynnor AT mm DOT st>
To:	cygwin AT cygwin DOT com
MIME-Version:	1.0
In-Reply-To:	<1221683706.20170524130359@yandex.ru>
References:	<1495612367 DOT 2760331 DOT 986814392 DOT 79C77EB2 AT webmail DOT messagingengine DOT com> <1221683706 DOT 20170524130359 AT yandex DOT ru>
Subject:	Re: Bug: grep behaves incorrectly under the locale C.UTF-8, if a file contains Umlaut characters
Date:	Wed, 24 May 2017 12:14:38 +0200
X-IsSubscribed:	yes

> > If I grep the file using, say,
> 
> >      $ grep  .  X  >Y
> 
> > (i.e. select every non-empty line and write the result to Y), this works
> > fine, if LANG is set to one of: UTF-8, C, C.de_DE, C.en_EN, en_EN,
> > de_DE.
> 
> > However, if LANG is set to C.UTF-8, two things happen:
> 
> > - grep classifies the file as binary file and produces the error message
> > "Binary file X matches" 
> 
> This is an intended behavior, upstream decision since mid-2015, I recall.


Might be, but this still does not explain the issues 1., 2. and 3.,
which I layed out in detail below. Note that never said that the fact,
that grep classifies certain characters as binary, would by itself a
bug.

Or is the intended behaviour, that with C.UTF-8 (and *only* with this
setting), the resulting standard output of grep is interspersed with
"Binary file matches" lines? If this is the case, I really would like to
se a justification for this decision. 


> 
> > - Both the grepped lines (i.e. in our example the non-empty lines) AND
> > the error message end up in the standard output (i.e. in file Y).
> 
> > IMO, there are several problems with this:
> 
> > 1. It's hard to see, why an umlaut character makes the file X binary
> > under encoding C.UTF-8, but not under encoding UTF-8 or C.en_EN
> 
> > 2. If grep classifies a file as binary, I think the desired behaviour
> > would be to NOT produce any output, unless the -a flag has been
> > supplied.
> 
> > 3. If grep writes a message "Binary file ... matches", this message
> > should go to stderr, not stdout. The stdout is supposed to contain only
> > a subset of the input lines.
> >  Ronald

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -