From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-workers-return-21690-mason-zsh=primenet.com.au@sunsite.dk>
Received: (qmail 23794 invoked from network); 30 Aug 2005 01:35:10 -0000
Received: from news.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.247.88)
  by ns1.primenet.com.au with SMTP; 30 Aug 2005 01:35:10 -0000
Received: (qmail 57597 invoked from network); 30 Aug 2005 01:35:03 -0000
Received: from sunsite.dk (130.225.247.90)
  by a.mx.sunsite.dk with SMTP; 30 Aug 2005 01:35:03 -0000
Received: (qmail 17110 invoked by alias); 30 Aug 2005 01:35:00 -0000
Mailing-List: contact zsh-workers-help@sunsite.dk; run by ezmlm
Precedence: bulk
X-No-Archive: yes
X-Seq: 21690
Received: (qmail 15031 invoked from network); 30 Aug 2005 01:08:19 -0000
Received: from news.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.247.88)
  by sunsite.dk with SMTP; 30 Aug 2005 01:08:19 -0000
Received: (qmail 41657 invoked from network); 30 Aug 2005 01:08:19 -0000
Received: from hex.databits.net (216.118.117.77)
  by a.mx.sunsite.dk with SMTP; 30 Aug 2005 01:08:15 -0000
Received: from hex.databits.net (localhost.databits.net [127.0.0.1])
	by hex.databits.net (Postfix) with ESMTP id BEF5357B2D
	for <zsh-workers@sunsite.dk>; Mon, 29 Aug 2005 20:08:13 -0500 (CDT)
From: Pete Fritchman <petef@databits.net>
To: zsh-workers@sunsite.dk
Subject: bug with aliases and declaring functions
Date: Mon, 29 Aug 2005 18:08:13 -0700
Sender: petef@hex.databits.net
Message-Id: <20050830010813.BEF5357B2D@hex.databits.net>
X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on f.primenet.com.au
X-Spam-Level: 
X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00 autolearn=ham 
	version=3.0.4

Hi,

$ alias foo='echo test|sort'
$ foo() { echo func; }
$ sort
func
$ 

If instead you declare the function with the function keyword, i.e.

function foo() { echo func; }

expected behavior occurs.  So, my theory is that the zsh parser is
re-writing 'foo() { echo func; }' to 'foo () { echo func; }' and then
'foo ' is seen at the beginning of the command, and foo's alias is
substituted.  This is also a useful test to see what's happening:

$ alias foo='echo test|sort'
$ set -x
$ foo() { echo func; }
+-/bin/zsh:5> echo test
$ foo () { echo func; }
+-/bin/zsh:6> echo test
$ set +x
$ declare -f
[...]
sort () {
        echo func
}
$

If this difference in behavior between 'foo() { ... }' and
'function foo() { ... }' is expected, I think it should be documented
somewhere.  Of course, I think this is a bug and should probably
be fixed :-)  BTW, as a data point: the same thing happens in bash.

thanks,
-- 
petef