From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: John Wiegley Newsgroups: gmane.emacs.devel Subject: Re: Change in files.el Date: Mon, 30 Jan 2017 10:58:23 -0500 Message-ID: References: <83mvebzh0k.fsf@gnu.org> <83bmurz0y9.fsf@gnu.org> <8360kzyxor.fsf@gnu.org> <83ziibxg7j.fsf@gnu.org> <83y3xvxfbs.fsf@gnu.org> <83wpdfxe96.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1485792175 8632 195.159.176.226 (30 Jan 2017 16:02:55 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 30 Jan 2017 16:02:55 +0000 (UTC) User-Agent: Gnus/5.130016 (Ma Gnus v0.16) Emacs/25.1.91 (darwin) Cc: emacs-devel@gnu.org To: Leo Liu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Jan 30 17:02:45 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cYEPl-0001r5-DE for ged-emacs-devel@m.gmane.org; Mon, 30 Jan 2017 17:02:45 +0100 Original-Received: from localhost ([::1]:33548 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cYEPp-0001JK-H6 for ged-emacs-devel@m.gmane.org; Mon, 30 Jan 2017 11:02:49 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:46397) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cYEOR-0000we-Nq for emacs-devel@gnu.org; Mon, 30 Jan 2017 11:01:24 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cYEOQ-0006EL-N1 for emacs-devel@gnu.org; Mon, 30 Jan 2017 11:01:23 -0500 Original-Received: from mail-qt0-x232.google.com ([2607:f8b0:400d:c0d::232]:33471) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cYEOQ-0006EC-Je for emacs-devel@gnu.org; Mon, 30 Jan 2017 11:01:22 -0500 Original-Received: by mail-qt0-x232.google.com with SMTP id v23so207433281qtb.0 for ; Mon, 30 Jan 2017 08:01:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:in-reply-to:date:message-id:references :user-agent:mail-followup-to:mime-version; bh=i2qRuFJW2hZiLfj1n0kICWGb85Weel54cMCMzePTK1k=; b=NDjk4FgvwAVobMs2LHAuSO1pV30DWJqO0Rt91FKmuVJAnsqKDEtWwCSTWOECwXH/pi z/uRqXAlfXV7xIlt4SF3WqJ4+zpxnCnqBEG7hoNN6vwwNplrI4MT8TqxzQdfUN45HBTu UBnx0joyMt1bP7pWQtvyiznkoFgWGex5qChjJtVm5Gs4N07m54xCYO+smm7D4UQe1XE3 XlUa1Ja5LFuVa+maYoawvTGNXz7Fqc8Nf64guH1tSSqYt/gbySKjuHeMoOl4N/SwFlmP elwrOmqXPkPu50CraSxzp8zDWQEJZUV2XU4/zmAEh4NKaQrrV5frifhBowMf8WP/smNz 4bVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:in-reply-to:date:message-id :references:user-agent:mail-followup-to:mime-version; bh=i2qRuFJW2hZiLfj1n0kICWGb85Weel54cMCMzePTK1k=; b=BIvi1cdozKhTvt3WiaLVwu8EVR5Yw8SoRiR9wq9oMLDQucPUPb5E5KIfqkgTUrvCWu OTIvdlnpYXmKq24EUWjIXtPPTwLVbkPhcttnLaBq5rIIVwEWNwrmwIGGZAJ4abzuZiIi WVymgH/l/0ACPnvdaKnhhP5Cy1QzmAF4+m8tHmKaHhgNEtsFhPrEKdPzRmbYZ+DvZs5V uMyJVLTPYEdSXbVIBD09h7pVrYVooRgSt3bq3wdamCCN9cGQOvCUBHmQ9ghpuy49TJ0v BbscNvdrEW49PxOa4RT1VNfi8jjGIHLkVHYcv9aB5DfGwZYou8BtzUdO9p8GjwQsTgJ7 G59w== X-Gm-Message-State: AIkVDXKnx9HNydr4neKVnBTk9O5Gyg5Ro+giHxAtiPmWHcpYkPd+voymlT5oE/NSQ8PnMQ== X-Received: by 10.200.1.2 with SMTP id e2mr19805303qtg.142.1485792081886; Mon, 30 Jan 2017 08:01:21 -0800 (PST) Original-Received: from Hermes.local (125.sub-174-192-22.myvzw.com. [174.192.22.125]) by smtp.gmail.com with ESMTPSA id q5sm12562170qtc.36.2017.01.30.08.01.17 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 30 Jan 2017 08:01:18 -0800 (PST) X-Google-Original-From: "John Wiegley" Original-Received: by Hermes.local (Postfix, from userid 501) id B027D865649; Mon, 30 Jan 2017 11:01:16 -0500 (EST) In-Reply-To: (Leo Liu's message of "Mon, 30 Jan 2017 11:57:42 +0800") Mail-Followup-To: Leo Liu , emacs-devel@gnu.org X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2607:f8b0:400d:c0d::232 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:211766 Archived-At: >>>>> "LL" == Leo Liu writes: LL> This is not something new today. The efforts have been going on for a LL> while. I think it is good practice as well. For a variable named with LL> -predicate or -function it would be a surprise if it were not a function. Can add-function infer that a -function variable with a value of "nil" is equivalent to it having a value of 'ignore? -- John Wiegley GPG fingerprint = 4710 CF98 AF9B 327B B80F http://newartisans.com 60E1 46C4 BD1A 7AC1 4BA2