From owner-freebsd-questions@FreeBSD.ORG Mon Apr 5 08:57:32 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 35F151065676 for ; Mon, 5 Apr 2010 08:57:32 +0000 (UTC) (envelope-from m.seaman@infracaninophile.co.uk) Received: from smtp.infracaninophile.co.uk (gate6.infracaninophile.co.uk [IPv6:2001:8b0:151:1::1]) by mx1.freebsd.org (Postfix) with ESMTP id 75FC58FC0A for ; Mon, 5 Apr 2010 08:57:31 +0000 (UTC) Received: from seedling.black-earth.co.uk (seedling.black-earth.co.uk [81.187.76.163]) (authenticated bits=0) by smtp.infracaninophile.co.uk (8.14.4/8.14.4) with ESMTP id o358vHbq063642 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO); Mon, 5 Apr 2010 09:57:18 +0100 (BST) (envelope-from m.seaman@infracaninophile.co.uk) Message-ID: <4BB9A5ED.3040309@infracaninophile.co.uk> Date: Mon, 05 Apr 2010 09:57:17 +0100 From: Matthew Seaman Organization: Infracaninophile User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: Alejandro Imass References: <20100403210610.GA4135@thought.org> <4BB8108A.9080104@FreeBSD.org> <1270371713.5861.98.camel@tao.thought.org> <86aatjnsts.fsf@red.stonehenge.com> <861vevnsow.fsf@red.stonehenge.com> <20100404163353.GA15198@guilt.hydra> <20100404201442.b456044e.freebsd@edvax.de> In-Reply-To: X-Enigmail-Version: 1.0.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.95.3 at happy-idiot-talk.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIM_ADSP_ALL, SPF_FAIL autolearn=no version=3.3.0 X-Spam-Checker-Version: SpamAssassin 3.3.0 (2010-01-18) on happy-idiot-talk.infracaninophile.co.uk Cc: Chad Perrin , Polytropon , FreeBSD Mailing List Subject: Re: perl qstn... X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Apr 2010 08:57:32 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 04/04/2010 19:48:14, Alejandro Imass wrote: > But honestly pun aside unless(){} is far more readable than if(!){} > and _especially_ if you are programming in an exception manner as you > correctly point out. Every language should have an unless construct. I've always found that 'unless' makes a great deal of sense when used in the alternate syntax: do_foo() unless $condition ; As far as I know, perl and its descendant ruby are the only programming languages that let you put the condition test after the action, despite this being exceeding familiar in human languages. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAku5pe0ACgkQ8Mjk52CukIxiwwCfVV5FD7gYil3eIG67Cgh14Hlt hnkAnRRggI9Eq13y9eWJYFNzSOMNX546 =5jSW -----END PGP SIGNATURE-----