X-Spam-Check-By: sourceware.org
Date: Tue, 14 Mar 2006 10:57:05 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Problem with gawk-3.1.5-3
Message-ID: <20060314095705.GC5887@calimero.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <31DDB7BE4BF41D4888D41709C476B6570246AE0C AT NIHCESMLBX5 DOT nih DOT gov>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <31DDB7BE4BF41D4888D41709C476B6570246AE0C@NIHCESMLBX5.nih.gov>
User-Agent: Mutt/1.4.2i
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
Precedence: bulk
List-Unsubscribe: <mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT 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

On Mar 13 17:30, Buchbinder, Barry (NIH/NIAID) [E] wrote:
> I have a gawk script that I've been using unchanged for at least 9
> months that seems to have broken with the transition from gawk-3.1.5-2
> to gawk-3.1.5-3.
> 
> Gawk seemed to hang, though it might be merely very slow.  I let it run
> for hours before killing it.  gawk-3.1.5-2 took 20-30 seconds to run.

Weird.  The difference between gawk-3.1.5-2 and gawk-3.1.5-3 is in
theory only the fact that -2 missed to make CRLF->LF conversion on stdin
while -3 does CRLF->LF conversion.

> This is the script, if that makes a difference.  It is in the middle of
> a pipe, receiving input from sort and giving output to another instance
> of sort.  Everything should have unix-style line-endings.  The pipe is
> running under ash.  The script actually used a tab character instead of
> the "\t" escape sequence.  I changed it to "\t" below in the hope that
> that might be easier to read in this email.
> 
>   gawk '  BEGIN   { FS = OFS = "\t" }
>                   {
>                   Key = $2 "\t" $3 "\t" $4
>                   InfoNew[Key] = $5
>                   DateNew[Key] = $1
>                   if (InfoOld[Key] == "") {
>                           InfoOld[Key] = InfoNew[Key]
>                           DateOld[Key] = DateNew[Key] }
>                   if (InfoNew[Key] != InfoOld[Key]) {
>                           print DateOld[Key], Key, InfoOld[Key]
>                           InfoOld[Key] = InfoNew[Key]
>                           DateOld[Key] = DateNew[Key] }
>                   }
>           END     {
>                   for (Key in InfoOld) {
>                           print DateOld[Key], Key, InfoOld[Key] }
>                   }'
> 
> Do I need to send anything else?

Can you embed this in a minimal testscript to reproduce the effect,
together with a few lines (<10) of a typical input file?


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

--
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/