From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: What does "lacks a prefix" mean? Date: Fri, 10 Jul 2015 00:27:52 +0200 Message-ID: <87615tj79z.fsf@nl106-137-147.student.uu.se> References: <1e0ad02f-ca3e-495c-bb85-61f77090d31d@googlegroups.com> <87bnfmqzn2.fsf@kuiper.lan.informatimago.com> <50e94679-4d4a-4440-a806-872dc05657ec@googlegroups.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1436481035 27899 80.91.229.3 (9 Jul 2015 22:30:35 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 9 Jul 2015 22:30:35 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Jul 10 00:30:27 2015 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZDKKm-0001CI-Np for geh-help-gnu-emacs@m.gmane.org; Fri, 10 Jul 2015 00:30:24 +0200 Original-Received: from localhost ([::1]:42104 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZDKKl-0007qC-UU for geh-help-gnu-emacs@m.gmane.org; Thu, 09 Jul 2015 18:30:23 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57484) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZDKKc-0007pv-B3 for help-gnu-emacs@gnu.org; Thu, 09 Jul 2015 18:30:15 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZDKKV-0006cd-Jr for help-gnu-emacs@gnu.org; Thu, 09 Jul 2015 18:30:14 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:43892) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZDKKV-0006b9-Dz for help-gnu-emacs@gnu.org; Thu, 09 Jul 2015 18:30:07 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1ZDKKS-0000wX-Tx for help-gnu-emacs@gnu.org; Fri, 10 Jul 2015 00:30:04 +0200 Original-Received: from nl106-137-156.student.uu.se ([130.243.137.156]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 10 Jul 2015 00:30:04 +0200 Original-Received: from embe8573 by nl106-137-156.student.uu.se with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 10 Jul 2015 00:30:04 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Original-Lines: 33 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: nl106-137-156.student.uu.se Mail-Copies-To: never User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) Cancel-Lock: sha1:hChssY34+e8rdfWDrJIUTBdxTdE= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:105569 Archived-At: Rusi writes: > Ive sometimes wished for a let-variant that does the > duty of both let and let* eg. > (let (((x 1) (y 2)) > ((z (foo x y)))) > body...) > > This kind of let would cost one paren more than the usual let. > But could make dependencies explicit without > overspecifying let* already does what let does. Dependencies aren't explicit anywhere: the only thing let* does is saying there CAN be dependencies. Because this is almost a worthless "red flag" that carries minimal information, I'd say I'd use let all the time if let was "let*". The only reason for the distinction is if computation was made in parallel, then let could allow that and let* wouldn't. However, if that was possible without OH to eat the gain I would like a much more powerful construct than let*, one which exactly identified what is dependent on what. -- underground experts united http://user.it.uu.se/~embe8573