Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Message-ID: <418AB603.5060408@familiehaase.de> Date: Fri, 05 Nov 2004 00:06:43 +0100 From: "Gerrit P. Haase" Organization: Esse keine toten Tiere User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; de-AT; rv:1.7.3) Gecko/20040910 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: Perl binmode problem on text mount References: <41897FF4 DOT 1080501 AT agilent DOT com> <418A9BF3 DOT 5010903 AT familiehaase DOT de> <20041104212608 DOT GC16067 AT trixie DOT casa DOT cgf DOT cx> <418AA3FA DOT 7080905 AT familiehaase DOT de> <20041104220056 DOT GG16067 AT trixie DOT casa DOT cgf DOT cx> In-Reply-To: <20041104220056.GG16067@trixie.casa.cgf.cx> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Christopher Faylor wrote: > On Thu, Nov 04, 2004 at 10:49:46PM +0100, Gerrit P. Haase wrote: > >>Christopher Faylor wrote: >> >>>Pipes are binmode by default. >> >>That means they are just as pipes are ought to be, "what goes in comes >>out again, not more and not less"? >> >>Or does it mean that a pipe always strips \r? Then the cat example of >>the OP doesn't count at all. > > > binmode means there is no extra processing on the fd. It is handled > just like linux. Linux doesn't add or subtract any characters when > it is doing I/O. > > You're right, though. The cat example really doesn't provide any useful > details. In fact, cat will output in text mode in some cases. > > The definitive test would be to run the older and newer versions of > perl on the newest version of cygwin. If the output using 'binmode' > differs between the two then perl is doing something wrong. If it > is the same then cygwin is doing something wrong. I saw that the output differs between perl-5.6.1 and perl-5.8.5 with the example from the OP. This means that someone should file a bug report to the perlbug facility. I rewrote the example, and then I saw that perl does the right thing on 'normal' filehandles, but obviously not if the filehandle is STDOUT. Gerrit -- =^..^= -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/