From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Jonas Bernoulli Newsgroups: gmane.emacs.devel Subject: Re: dash.el [was: Re: Imports / inclusion of s.el into Emacs] Date: Wed, 13 May 2020 23:03:14 +0200 Message-ID: <87lflv5yzx.fsf@bernoul.li> References: <0c88192c-3c33-46ed-95cb-b4c6928016e3@default> <87wo5mc04t.fsf@fastmail.fm> <873686bbl5.fsf@russet.org.uk> <87d07963ec.fsf@fastmail.fm> <873685dq73.fsf@russet.org.uk> <87wo5gc0kb.fsf@russet.org.uk> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="45830"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Joost Kremers , Oleh Krehel , emacs-devel@gnu.org To: Stefan Monnier , Phillip Lord Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed May 13 23:06:45 2020 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 1jYyaR-000Bom-Tz for ged-emacs-devel@m.gmane-mx.org; Wed, 13 May 2020 23:06:43 +0200 Original-Received: from localhost ([::1]:45000 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jYyaQ-0003x3-MF for ged-emacs-devel@m.gmane-mx.org; Wed, 13 May 2020 17:06:42 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:57750) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jYyX8-00084l-Nm for emacs-devel@gnu.org; Wed, 13 May 2020 17:03:18 -0400 Original-Received: from mail.hostpark.net ([212.243.197.30]:50784) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jYyX7-0004QZ-Ds for emacs-devel@gnu.org; Wed, 13 May 2020 17:03:18 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by mail.hostpark.net (Postfix) with ESMTP id 11B511662B; Wed, 13 May 2020 23:03:15 +0200 (CEST) X-Virus-Scanned: by Hostpark/NetZone Mailprotection at hostpark.net Original-Received: from mail.hostpark.net ([127.0.0.1]) by localhost (mail0.hostpark.net [127.0.0.1]) (amavisd-new, port 10124) with ESMTP id HflzX4hGe0Hj; Wed, 13 May 2020 23:03:14 +0200 (CEST) Original-Received: from customer (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.hostpark.net (Postfix) with ESMTPSA id 852C3164B2; Wed, 13 May 2020 23:03:14 +0200 (CEST) In-Reply-To: Received-SPF: none client-ip=212.243.197.30; envelope-from=jonas@bernoul.li; helo=mail.hostpark.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/13 16:29:10 X-ACL-Warn: Detected OS = ??? X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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" Xref: news.gmane.io gmane.emacs.devel:250164 Archived-At: Stefan Monnier writes: >> You said that there is a macro like this already in Emacs? > > I don't think it's in Emacs, but I remember seeing something like > that somewhere. You were probably thinking of Oleh Krehel's short-lambda package. https://github.com/abo-abo/short-lambda ;; This package allows to do this: ;; ;; (cl-mapcar #(concat %1 " are " %2) ;; '("roses" "violets") ;; '("red" "blue")) ;; ;; => '("roses are red" "violets are blue") ;; ;; Or this: ;; ;; (mapc #(put % 'disabled nil) ;; '(upcase-region downcase-region narrow-to-region)) ;; ;; This assumes that there is a reader macro in the Emacs C code that ;; translates #(STRUCTURE) to (short-lambda STRUCTURE), in the same ;; way as for the `backquote' macro. If we ask nicely, he might still be able to dig up the C code. Hey Oleh! Jonas