From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-users-return-19808-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 5095 invoked by alias); 4 Feb 2015 17:10:39 -0000
Mailing-List: contact zsh-users-help@zsh.org; run by ezmlm
Precedence: bulk
X-No-Archive: yes
List-Id: Zsh Users List <zsh-users.zsh.org>
List-Post: <mailto:zsh-users@zsh.org>
List-Help: <mailto:zsh-users-help@zsh.org>
X-Seq: 19808
Received: (qmail 27414 invoked from network); 4 Feb 2015 17:10:37 -0000
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on f.primenet.com.au
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE
	autolearn=ham version=3.3.2
X-CMAE-Score: 0
X-CMAE-Analysis: v=2.1 cv=Ko/6AtSI c=1 sm=1 tr=0	a=FT8er97JFeGWzr5TCOCO5w==:117
 a=kj9zAlcOel0A:10 a=q2GGsy2AAAAA:8	a=oR5dmqMzAAAA:8 a=-9mUelKeXuEA:10
 a=0HtSIViG9nkA:10	a=m93uzirOxYdK9Q_xPw0A:9 a=CjuIK1q_8ugA:10
From: Bart Schaefer <schaefer@brasslantern.com>
Message-id: <150204091014.ZM3216@torch.brasslantern.com>
Date: Wed, 04 Feb 2015 09:10:14 -0800
In-reply-to: <54D195B2.4070205@gmx.com>
Comments: In reply to Eric Cook <llua@gmx.com>        "Re: ${var:1:1:=y}" (Feb
 3, 10:44pm)
References: <54D155C8.4080600@eastlink.ca>
	<412544FB-49A2-43AA-BC76-DC1AF1AA71BE@larryv.me>
	<54D16A4C.9010609@eastlink.ca>
	<B2986EC3-5BF2-4DBC-ABB9-7B6935FE2F91@larryv.me>
	<150203192508.ZM2159@torch.brasslantern.com>	<54D195B2.4070205@gmx.com>
X-Mailer: OpenZMail Classic (0.9.2 24April2005)
To: zsh-users@zsh.org
Subject: The "-" and "--" options (was Re: ${var:1:1:=y})
MIME-version: 1.0
Content-type: text/plain; charset=us-ascii

On Feb 3, 10:44pm, Eric Cook wrote:
} Subject: Re: ${var:1:1:=y}
}
} On 02/03/2015 10:25 PM, Bart Schaefer wrote:
} >   All builtin commands other than precommand modifiers, even those that
} >   have no options, can be given the argument `--' to terminate option
} >   processing.  [...]  For historical reasons,
} >   most builtin commands also recognize a single `-' in a separate word
} printf , test/[, set -A and maybe a few others are exceptions to those
} rules.

Also "echo" does NOT accept "--" in this way, it ONLY acceps a solitary
"-".  I forget why that is.

printf : accepts -- but not -
test : accepts neither
set : the -A itself ends option processing, and "--" has added semantics