From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ihor Radchenko Newsgroups: gmane.emacs.devel Subject: Re: Why shouldn't we have a #if .... #else .... #endif construct in Emacs Lisp? Date: Tue, 29 Aug 2023 11:09:53 +0000 Message-ID: <875y4y14vy.fsf@localhost> References: <87zg2bosf3.fsf@dataswamp.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39699"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel To: =?utf-8?B?Sm/Do28gVMOhdm9yYQ==?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Aug 29 13:09:50 2023 Return-path: Envelope-to: ged-emacs-devel@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 1qawbW-000AAK-Cl for ged-emacs-devel@m.gmane-mx.org; Tue, 29 Aug 2023 13:09:50 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qawbJ-0004py-2A; Tue, 29 Aug 2023 07:09:37 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qawbD-0004pA-3r for emacs-devel@gnu.org; Tue, 29 Aug 2023 07:09:31 -0400 Original-Received: from mout01.posteo.de ([185.67.36.65]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qawb8-0004z7-Cj for emacs-devel@gnu.org; Tue, 29 Aug 2023 07:09:30 -0400 Original-Received: from submission (posteo.de [185.67.36.169]) by mout01.posteo.de (Postfix) with ESMTPS id 0C46F240029 for ; Tue, 29 Aug 2023 13:09:22 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1693307363; bh=5NL1BplBZ6+6dxUH/AjSK+2/EST8noM6u2f80/qvMF8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version: Content-Transfer-Encoding:From; b=JdfXP2AcgdLr+hmWNxvQ6tpFQ26QGVL+OOMRYPNNzf+q9svePiGgX877UE/V2zuXp k/tPkm5oYEG3D1962+pnsiI3oXyGnGtDbnZXHJna8BrQQYL9OkmSFY6onukvyALEOO 88g79P0YrLMCaMXOvU61Et0LqbJ7336t3RdsMrA6Oc+IuR2J+Afj8E56wWvTEPNTpk GhtSL33fNCEa6XpbSVS2I1M6oEtFhXTgCJ2BeI2dxLEnvFLY3nGwDf9H/yhUJlMPts FExAcIpaGb9Qq/j8A2p8pUZkU1qv5F232x7P73Dxk/JB8V8cRaCpHT1btvivuTReAK n9JPOUeEgpExQ== Original-Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4RZl762Pdhz9rxQ; Tue, 29 Aug 2023 13:09:22 +0200 (CEST) In-Reply-To: Received-SPF: pass client-ip=185.67.36.65; envelope-from=yantar92@posteo.net; helo=mout01.posteo.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:309490 Archived-At: Jo=C3=A3o T=C3=A1vora writes: > FWIW, Common Lisp has reader macros to solve the problem: > http://clhs.lisp.se/Body/24_aba.htm Elisp also has reader macros ;) See lisp/emacs-lisp/backquote.el --=20 Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at