From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: [External] : Re: Lexical vs. dynamic: small examples? Date: Sun, 15 Aug 2021 07:02:43 +0200 Message-ID: <87lf53s3kc.fsf@zoho.eu> References: <4a9bddb9ec57299b3b0c@heytings.org> <87y293sdxk.fsf@zoho.eu> <87pmufs4er.fsf@zoho.eu> Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="33121"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:KEnAdvFwN0+HBgtw8IjV0T/BfOw= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Aug 15 07:03:29 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mF8Iy-0008QT-Sy for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 15 Aug 2021 07:03:28 +0200 Original-Received: from localhost ([::1]:41756 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mF8Ix-0007tF-8U for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 15 Aug 2021 01:03:27 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:57772) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mF8IU-0007t3-KH for help-gnu-emacs@gnu.org; Sun, 15 Aug 2021 01:02:59 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:34642) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mF8IT-0004Oi-87 for help-gnu-emacs@gnu.org; Sun, 15 Aug 2021 01:02:58 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1mF8IP-0007kt-66 for help-gnu-emacs@gnu.org; Sun, 15 Aug 2021 07:02:53 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:132566 Archived-At: > So I wonder again, why not just have two let, one "let-stay" > (the variables stay so has to be used and/or passed > explicitely), and "let-follow" (the variables follow > everywhere the code goes within the let form). Even better, let `let' be the lexical let. Then the old dynamic let will be called "with-variables-as". So this (let ((x 1) (y 2) (z -1) ) (draw-grid x y z) ) would be the equivalent of (with-variables-as ((x 1) (y 2) (z -1) ) (draw-grid) ) -- underground experts united https://dataswamp.org/~incal