From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Augusto Stoffel Newsgroups: gmane.emacs.bugs Subject: bug#56875: 29.0.50; [PATCH] Add thread-as macro Date: Fri, 05 Aug 2022 09:44:50 +0200 Message-ID: <87zggj6snh.fsf@gmail.com> References: <87h72vq4eq.fsf@gmail.com> <877d3r0x22.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="19837"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: 56875@debbugs.gnu.org, Lars Ingebrigtsen , eliz@gnu.org To: Richard Stallman Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Aug 05 09:45:57 2022 Return-path: Envelope-to: geb-bug-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 1oJs1t-00052L-2S for geb-bug-gnu-emacs@m.gmane-mx.org; 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Fri, 05 Aug 2022 00:44:51 -0700 (PDT) In-Reply-To: (Richard Stallman's message of "Tue, 02 Aug 2022 23:47:08 -0400") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:238836 Archived-At: On Tue, 2 Aug 2022 at 23:47, Richard Stallman wrote: > [[[ To any NSA and FBI agents reading my email: please consider ]]] > [[[ whether defending the US Constitution against all enemies, ]]] > [[[ foreign or domestic, requires you to follow Snowden's example. ]]] > > > + (thread-as x > > + 4 > > + (- 10 x) > > + (/ x 2)) > > I propose a different syntax which is more Lispy than thread-as, and > more self-evident: > > (let-successive ((x 4 > (- 10 x))) > (/ x 2)) > > A Lisper can guess what it means, without having read a description. > > It lends itself to a generalization where there is more than > one bound variable, each of which can have several values: > > (let-successive ((x 4 > (- 10 x)) > (y 6 > (- 12 y))) > (* x y)) > => 36 > > The values after the first can refer to all of the variables, > since all of them are already bound (to the previous values) > at that point. This is an interesting alternative. I'd suggest to wait for other opinions about the need for this kind of macro in general, and which variant is preferred.