From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#48212: [PATCH] subr-x.el: Added `while-let` and `while-let*` Date: Wed, 12 May 2021 20:57:11 +0200 Message-ID: <87zgwzeq60.fsf@gnus.org> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="10082"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 48212@debbugs.gnu.org To: Hu Lucius Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed May 12 21:21:56 2021 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 1lguQd-0002TH-W0 for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 12 May 2021 21:21:56 +0200 Original-Received: from localhost ([::1]:50596 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lguQd-00039n-0l for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 12 May 2021 15:21:55 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53790) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lgu3W-0008TF-LR for bug-gnu-emacs@gnu.org; Wed, 12 May 2021 14:58:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:57238) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lgu3W-0000fL-D0 for bug-gnu-emacs@gnu.org; Wed, 12 May 2021 14:58:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lgu3W-0007Hi-CB for bug-gnu-emacs@gnu.org; Wed, 12 May 2021 14:58:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 12 May 2021 18:58:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 48212 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 48212-submit@debbugs.gnu.org id=B48212.162084584227927 (code B ref 48212); Wed, 12 May 2021 18:58:02 +0000 Original-Received: (at 48212) by debbugs.gnu.org; 12 May 2021 18:57:22 +0000 Original-Received: from localhost ([127.0.0.1]:40548 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lgu2s-0007GM-2J for submit@debbugs.gnu.org; Wed, 12 May 2021 14:57:22 -0400 Original-Received: from quimby.gnus.org ([95.216.78.240]:33622) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lgu2q-0007G5-5E for 48212@debbugs.gnu.org; Wed, 12 May 2021 14:57:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=5ANj9Dx/ZtmDaUHqbNlOuu9KNWVOPld7Ra+KbYmhupo=; b=Xh7Uazk1OUwEVN/HAbqCy3G/ei rdLbugIyLjLjWLWamnSfiXrHi1bPdTbXlP/gkA+z3nCi8YNxns8chzdG0vkQNBUTC5PUscrIS2aTe nkwQ4LgcVRRGfc/UfZQPIqayO9/Vy9hPP6tcOfg+zY2M/eRSJ64aAB38TnHhUPJjGPYc=; Original-Received: from cm-84.212.220.105.getinternet.no ([84.212.220.105] helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lgu2h-0000QY-Nm; Wed, 12 May 2021 20:57:14 +0200 X-Now-Playing: Hexting's _Post Post Rock Rock_: "The Sky Drooled" In-Reply-To: (Hu Lucius's message of "Mon, 3 May 2021 23:29:26 +0000") 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:206383 Archived-At: Hu Lucius writes: > I've added two functions in `subr-x`, `while-let` and `while-let*`. > > `(while-let SPEC BODY)` evaluate each binding in turn and stop if a > binding value is nil. > BODY is evaluated repeatedly until a binding value is nil. > > `(while-let* VARLIST BODY)` is like `while-let` except VARLIST is of > the form ((SYMBOL SOMETHING) ...). Thank you, but I think these macros don't really give enough functionality to warrant adding them to Emacs -- in general, using `cl-loop' when you have conditions like this makes more sense, since it gives you more control over the conditions and the return values. So I'm closing this bug report. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no