From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ken Raeburn Newsgroups: gmane.lisp.guile.devel Subject: Re: expression Date: Thu, 24 Jun 2010 10:40:20 -0400 Message-ID: <023ACD38-01C2-431D-808A-090ECAF22BA2@raeburn.org> References: <867048CD-FB59-4D61-A944-03E4BE4D2960@raeburn.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 (Apple Message framework v1081) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Trace: dough.gmane.org 1277390454 6291 80.91.229.12 (24 Jun 2010 14:40:54 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 24 Jun 2010 14:40:54 +0000 (UTC) Cc: Michael Lucy , guile-devel@gnu.org To: Andy Wingo Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Thu Jun 24 16:40:51 2010 Return-path: Envelope-to: guile-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ORnbh-0003ir-OZ for guile-devel@m.gmane.org; Thu, 24 Jun 2010 16:40:46 +0200 Original-Received: from localhost ([127.0.0.1]:40478 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1ORnbh-0006ta-6D for guile-devel@m.gmane.org; Thu, 24 Jun 2010 10:40:45 -0400 Original-Received: from [140.186.70.92] (port=41880 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1ORnbY-0006sB-Ct for guile-devel@gnu.org; Thu, 24 Jun 2010 10:40:37 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1ORnbW-0001Dw-TD for guile-devel@gnu.org; Thu, 24 Jun 2010 10:40:36 -0400 Original-Received: from splat.raeburn.org ([69.25.196.39]:38867 helo=raeburn.org) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1ORnbL-0001BO-Ka for guile-devel@gnu.org; Thu, 24 Jun 2010 10:40:34 -0400 Original-Received: from squish.raeburn.org (squish.raeburn.org [10.0.0.172]) by raeburn.org (8.14.3/8.14.1) with ESMTP id o5OEeLBm008597; Thu, 24 Jun 2010 10:40:21 -0400 (EDT) In-Reply-To: X-Mailer: Apple Mail (2.1081) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.devel:10565 Archived-At: On Jun 24, 2010, at 09:03, Andy Wingo wrote: > There are actually two kinds of begin: one in definition context and = one > in expression context. The former takes 0 or more forms, and splices > those forms into the input, where the (begin ...) appears. The other > takes 1 or more expressions, and evaluates those expression in order, > returning the value of the last. Ah, right... so my example was presumably in definition context, so = having no additional forms was okay, but Michael's use is probably = expression context, where it wouldn't, making my suggestion no good... = good to know. :-) Thanks for the correction. And "*unspecified*" references are optimized by the compiler now? = Great! Then "No Itisnt"'s suggestion looks like the right way to go = after all... Ken=