From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-workers-return-30575-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 10386 invoked by alias); 18 Jul 2012 14:31:33 -0000
Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm
Precedence: bulk
X-No-Archive: yes
List-Id: Zsh Workers List <zsh-workers.zsh.org>
List-Post: <mailto:zsh-workers@zsh.org>
List-Help: <mailto:zsh-workers-help@zsh.org>
X-Seq: 30575
Received: (qmail 19121 invoked from network); 18 Jul 2012 14:31:22 -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=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW,
	SPF_HELO_PASS autolearn=ham version=3.3.2
Received-SPF: none (ns1.primenet.com.au: domain at csr.com does not designate permitted sender hosts)
Date: Wed, 18 Jul 2012 14:40:17 +0100
From: Peter Stephenson <Peter.Stephenson@csr.com>
To: <zsh-workers@zsh.org>
Subject: Re: (:a) specifier for not existent files
Message-ID: <20120718144017.11d3de3d@pwslap01u.europe.root.pri>
In-Reply-To: <m0eho9fc1a.fsf@ge-research.com>
References: <m0eho9fc1a.fsf@ge-research.com>
Organization: Cambridge Silicon Radio
X-Mailer: Claws Mail 3.7.9 (GTK+ 2.22.0; i386-redhat-linux-gnu)
MIME-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Originating-IP: [10.101.10.18]
X-Scanned-By: MailControl 7.7.2 (www.mailcontrol.com) on 10.71.0.123

On Wed, 18 Jul 2012 15:12:49 +0200
Stefan Reich=C3=B6r <stefan@xsteve.at> wrote:
> I am using the (:a) specifier to get absoulte file paths. But this works
> only for existing files. Is there a way to make it work for not existing
> files also?

Not in general, because it can't sanity check the path so it doesn't
know what to do to it.  But you can handle some simple cases:

if [[ ! -e $1 ]]; then
  local dir=3D${1:h}
  if [[ -d $dir ]]; then
    dir=3D(${dir}(:a))
    1=3D${dir[1]}/${1:t}
  fi
fi

This works for names without a slash since ${1:h} returns ".".

--=20
Peter Stephenson <pws@csr.com>            Software Engineer
Tel: +44 (0)1223 692070                   Cambridge Silicon Radio Limited
Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, =
UK


Member of the CSR plc group of companies. CSR plc registered in England and=
 Wales, registered number 4187346, registered office Churchill House, Cambr=
idge Business Park, Cowley Road, Cambridge, CB4 0WZ, United Kingdom
More information can be found at www.csr.com. Follow CSR on Twitter at http=
://twitter.com/CSR_PLC and read our blog at www.csr.com/blog