From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-users-return-7459-mason-zsh=primenet.com.au@sunsite.dk>
Received: (qmail 1014 invoked from network); 16 May 2004 22:41:22 -0000
Received: from ns2.primenet.com.au (HELO primenet.com.au) (?LSQPO1rGlkDpbd40oyLZfixPPpKu6jdM?@203.24.36.3)
  by ns1.primenet.com.au with SMTP; 16 May 2004 22:41:22 -0000
Received: (qmail 14916 invoked from network); 16 May 2004 22:06:14 -0000
Received: from thor.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.247.86)
  by proxy.melb.primenet.com.au with SMTP; 16 May 2004 22:06:14 -0000
Received: (qmail 3822 invoked from network); 16 May 2004 22:03:38 -0000
Received: from sunsite.dk (130.225.247.90)
  by a.mx.sunsite.dk with SMTP; 16 May 2004 22:03:38 -0000
Received: (qmail 28295 invoked by alias); 16 May 2004 22:03:26 -0000
Mailing-List: contact zsh-users-help@sunsite.dk; run by ezmlm
Precedence: bulk
X-No-Archive: yes
X-Seq: 7459
Received: (qmail 28267 invoked from network); 16 May 2004 22:03:25 -0000
Received: from thor.dotsrc.org (HELO a.mx.sunsite.dk) (qmailr@130.225.247.86)
  by sunsite.dk with SMTP; 16 May 2004 22:03:22 -0000
Received: (qmail 2311 invoked from network); 16 May 2004 22:02:58 -0000
Received: from dsl3-63-249-88-2.cruzio.com (HELO binome.blorf.net) (63.249.88.2)
  by a.mx.sunsite.dk with SMTP; 16 May 2004 22:02:55 -0000
Received: by binome.blorf.net (Postfix, from userid 1000)
	id 57572B27E; Sun, 16 May 2004 15:02:53 -0700 (PDT)
Date: Sun, 16 May 2004 15:02:53 -0700
From: Wayne Davison <wayned@users.sourceforge.net>
To: "S. Cowles" <scowles@earthlink.net>
Cc: zsh-users@sunsite.dk
Subject: Re: parameter type differences?
Message-ID: <20040516220253.GA3264@blorf.net>
References: <20040514102510.GF10581@greux.loria.fr> <200405161434.14167.scowles@earthlink.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <200405161434.14167.scowles@earthlink.net>
User-Agent: Mutt/1.5.5.1+cvs20040105i
X-Spam-Checker-Version: SpamAssassin 2.63 on a.mx.sunsite.dk
X-Spam-Level: 
X-Spam-Status: No, hits=-0.0 required=6.0 tests=BAYES_44 autolearn=no 
	version=2.63
X-Spam-Hits: -0.0

On Sun, May 16, 2004 at 02:34:06PM -0700, S. Cowles wrote:
> The utility od is used to verify the values of the "bref" and "b"
> parameters.  

Except that you used echo to output the value of the variables, and it
interprets escape sequences by default.  If you change all the "echo -n"
calls to "echo -nE", it will show you how the values differ.  Here's the
output of such a modified script:

case 1.
diff
0000000 012
0000001
0000000 134 060 061 062
0000004
case 2.
diff
0000000 012
0000001
0000000 134 156
0000002
case 3.
same
0000000 012
0000001
0000000 012
0000001

To get rid of this discrepancy, put a $ in front of the string literals
you assign to $b, like this:

b=$'\012'

That will put a single character into $b instead of 4.

..wayne..