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From: Chris Faylor <cgf AT cygnus DOT com>
Date: Mon, 26 Jun 2000 10:58:56 -0400
To: cygwin AT sourceware DOT cygnus DOT com
Subject: Re: Problem with cygwin-1.1.2 gawk-3.0.4  [Was:  [ANNOUNCEMENT] Updated: gawk-3.0.4]
Message-ID: <20000626105856.B1064@cygnus.com>
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In-Reply-To: <00a501bfdf74$37bb85e0$c7a7b5d4@p4kpm>; from c.christian.joensson@telia.com on Mon, Jun 26, 2000 at 03:40:54PM +0200

On Mon, Jun 26, 2000 at 03:40:54PM +0200, Christian Jönsson wrote:
>well, the my guess right now is that the problem has with passing of chars
>between tcl and gawk. So, in that view, the problem *is* isolated. Earnie suggested
>experimenting with escaping and that's what I did. The "resulting, but not equivalent to
>unix/linux variants is this:

This "passing of chars" problem is coming with the use of an MSVC version of tcl/tk,
which has nothing to do with cygwin.

It looks like you've already identified the cygwin part of the problem.
tcl/tk probably does not like the symbolic link:

>lrw-r--r--   1 chj      unknown        19 Jun 25 18:00 /usr/bin/awk.exe -> gawk.exe*

that you previously reported.  Symbolic links are a cygwin construction and, as
I mentioned, tcl/tk is not a true cygwin application.

cgf

>BASH.EXE-2.04$ less test1.tcl
>set awkCode { { print "\" \""; print "\"flow \"" $2;} }
>
>exec awk $awkCode
>
>BASH.EXE-2.04$ 
>
>and the original had this:
>
>BASH.EXE-2.04$ less test1-orig.tcl
>set awkCode { { print " "; print "\"flow " $2;} }
>
>exec awk $awkCode
>
>BASH.EXE-2.04$
>
>I got my real problem "solved", I could run my test suite and had some differences
>that looked like this:
>
>../../ns test-suite-red.tcl flows_unforced QUIET
>3,4c3,4
><
>< "flow 1
>---
>> " "
>> "flow "1
>21,22c21,22
><
>< "flow 2
>---
>> " "
>> "flow "2
>39,40c39,40
><
>< "flow 3
>---
>> " "
>> "flow "3
>Test output differs from reference output
>
>So, I'll leave it at this. There's some kind of problem related to passing chars
>between tcl and gawk under cygwin.
>
>Thanks for the help this far.
>
>Cheers,
>
>/ChJ
>
>----- Original Message ----- 
>From: "Corinna Vinschen" <vinschen AT cygnus DOT com>
>To: "Christian Jönsson" <c DOT christian DOT joensson AT telia DOT com>
>Cc: <cygwin AT sourceware DOT cygnus DOT com>
>Sent: Monday, June 26, 2000 3:29 PM
>Subject: Re: Problem with cygwin-1.1.2 gawk-3.0.4 [Was: [ANNOUNCEMENT] Updated: gawk-3.0.4]
>
>
>> Christian Jönsson wrote:
>> > 
>> > I have not made any awk script, I think the problem lies in passing some chars between tcl and awk. could be tcl could be gawk, could even by cygwin but that's a guess. In this case, it's either the char " or the " in followed by blank char.
>> > 
>> > As for trying escaping like you mention below, what do you suggets for the tcl script:
>> > 
>> > set awkCode { { print " "; } }
>> > 
>> > exec awk $awkCode
>> 
>> I would suggest to do what is opportune in that situation:
>> 
>> Try to ISOLATE the problem. Try calling gawk without using Tcl
>> and try calling Tcl without gawk.
>> 
>> As Chris has already mentioned, tcl/tk has only a bit of Cygwin
>> support so you might have problems in interacting, similar to any
>> interacting between Cygwin tools and native w32 tools.
>> 
>> Corinna
>> 
>> -- 
>> Corinna Vinschen
>> Cygwin Developer
>> Cygnus Solutions, a Red Hat company
>> 
>> --
>> Want to unsubscribe from this list?
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>> 
>
>
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-- 
cgf AT cygnus DOT com                        Cygnus Solutions, a Red Hat company
http://sourceware.cygnus.com/         http://www.redhat.com/

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