From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-users-return-7714-mason-zsh=primenet.com.au@sunsite.dk>
Received: (qmail 13862 invoked from network); 20 Jul 2004 01:17:41 -0000
Received: from news.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.247.88)
  by ns1.primenet.com.au with SMTP; 20 Jul 2004 01:17:41 -0000
Received: (qmail 54559 invoked from network); 20 Jul 2004 01:17:35 -0000
Received: from sunsite.dk (130.225.247.90)
  by a.mx.sunsite.dk with SMTP; 20 Jul 2004 01:17:35 -0000
Received: (qmail 3655 invoked by alias); 20 Jul 2004 01:16:51 -0000
Mailing-List: contact zsh-users-help@sunsite.dk; run by ezmlm
Precedence: bulk
X-No-Archive: yes
X-Seq: 7714
Received: (qmail 3642 invoked from network); 20 Jul 2004 01:16:50 -0000
Received: from unknown (HELO a.mx.sunsite.dk) (130.225.247.88)
  by 130.225.247.90 with SMTP; 20 Jul 2004 01:16:50 -0000
Received: (qmail 52913 invoked from network); 20 Jul 2004 01:15:02 -0000
Received: from main.gmane.org (80.91.224.249)
  by a.mx.sunsite.dk with SMTP; 20 Jul 2004 01:15:00 -0000
Received: from list by main.gmane.org with local (Exim 3.35 #1 (Debian))
	id 1BmjDg-0001o3-00
	for <zsh-users@sunsite.dk>; Tue, 20 Jul 2004 03:15:00 +0200
Received: from numerus.ling.uu.se ([130.238.78.148])
        by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
        id 1AlnuQ-0007hv-00
        for <zsh-users@sunsite.dk>; Tue, 20 Jul 2004 03:15:00 +0200
Received: from bkhl by numerus.ling.uu.se with local (Gmexim 0.1 (Debian))
        id 1AlnuQ-0007hv-00
        for <zsh-users@sunsite.dk>; Tue, 20 Jul 2004 03:15:00 +0200
X-Injected-Via-Gmane: http://gmane.org/
Mail-Followup-To: zsh-users@sunsite.dk
To: zsh-users@sunsite.dk
From: bkhl@elektrubadur.se (=?iso-8859-1?q?Bj=F6rn_Lindstr=F6m?=)
Subject: Substitution question
Date: Tue, 20 Jul 2004 03:14:58 +0200
Message-ID: <s38pt6r4gz1.fsf@numerus.ling.uu.se>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Complaints-To: usenet@sea.gmane.org
X-Gmane-NNTP-Posting-Host: numerus.ling.uu.se
Mail-Copies-To: never
X-Home-Page: http://bkhl.elektrubadur.se/
User-Agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.2 (gnu/linux)
Cancel-Lock: sha1:j0NsD45PDcB/xu+ugjN5oz6MGYs=
Sender: news <news@sea.gmane.org>
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=none autolearn=no version=2.63
X-Spam-Hits: 0.0

Can somebody tell me what type of patterns are supported in l, in the
$x:s/l/r syntax?

I'd like to do something like:

$x:gs/[^A-Za-z0-9]/_

to replace all characters except for the ones listed with underscore.