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: Tue, 31 Jan 2017 09:01:52 -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 1485873069 10751 195.159.176.226 (31 Jan 2017 14:31:09 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 31 Jan 2017 14:31:09 +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 Tue Jan 31 15:31:05 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 1cYZSa-0002b6-Ma for ged-emacs-devel@m.gmane.org; Tue, 31 Jan 2017 15:31:04 +0100 Original-Received: from localhost ([::1]:38584 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cYZSe-0005Nl-EA for ged-emacs-devel@m.gmane.org; Tue, 31 Jan 2017 09:31:08 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40266) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cYZ0x-00069b-Is for emacs-devel@gnu.org; Tue, 31 Jan 2017 09:02:32 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cYZ0u-0002vV-Gi for emacs-devel@gnu.org; Tue, 31 Jan 2017 09:02:31 -0500 Original-Received: from mail-qk0-x233.google.com ([2607:f8b0:400d:c09::233]:33333) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cYZ0u-0002vN-DK for emacs-devel@gnu.org; Tue, 31 Jan 2017 09:02:28 -0500 Original-Received: by mail-qk0-x233.google.com with SMTP id s140so164743453qke.0 for ; Tue, 31 Jan 2017 06:02:28 -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=JlrfObRDA3856HZE4zDSKKVGHgoKam9JFUlwT8DtVZw=; b=JkmqGpgC0UBajRaPK5gh2JWl6KZjbu8HVjdQRBJRr637b/Tr0XATqAZMg+JzAd7Fg3 8C4WpYN96d6NjbcXSjajeHgyAahmj/5oDJrjTIdboTUkcRAc8ei4wVRBd1zn00L064/b u81D5hgUsbtzQy4ErestzePymQzEX1U/nxD/vGCpCqFlhjlzkWGHgf/l7hOR2M5BUPVr 4NtRLZjTNfkQsVVV+zpY1cUB6hrWMkdSx8KgQHL0QdMulVAF5iqtOLcAEY4lGLTz/5g/ NRfaVSiumyizzbwyofH/MeN8tmS0/2wjz2b6JGsC0AR0gwDClSUp8vawNp0AdqdLxrVS JzSQ== 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=JlrfObRDA3856HZE4zDSKKVGHgoKam9JFUlwT8DtVZw=; b=RNi9JrpKpu1DBK0hXzwPSu6D0y3mfoB+2Mo8ySlWOwC85AzBzJgU29xf9L8E5q3glP TgyQL3h38noOG1eRTUtGOfxtAeKIlwMfOij+OXuzEqIsH2NpDLYk+1GfNLHGVmL9cm2J bRkhQFMG9lUPP0r8BdCEi6sB9+T4JlQW4Wt9Y2k0d38RmHvaSuWezaFZd1LwbdIMW7S9 6CENn0Kcq2V50ldrHEIfRAHuF05Cug9XRr4V6d6aocNkWCdk2u5bIrpSuSy8UKjP1h6U IOePi8Nnd03pRUyuQUU5JHGrc3HFFI0nCpzfv+nz/Mj6ormd3bRBLEk4nnb4/YKkxOoe dtJA== X-Gm-Message-State: AIkVDXLDwWNMTaACmDWis1OdpZITHEif8pT40NbpkeA5u35UoRbSIbEyYqxiBVxz+nHAnQ== X-Received: by 10.55.178.133 with SMTP id b127mr20629179qkf.170.1485871347764; Tue, 31 Jan 2017 06:02:27 -0800 (PST) Original-Received: from Hermes.local ([216.57.92.130]) by smtp.gmail.com with ESMTPSA id f35sm15318818qtb.49.2017.01.31.06.02.26 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 31 Jan 2017 06:02:26 -0800 (PST) X-Google-Original-From: "John Wiegley" Original-Received: by Hermes.local (Postfix, from userid 501) id 979F186C19D; Tue, 31 Jan 2017 09:02:25 -0500 (EST) In-Reply-To: (Leo Liu's message of "Tue, 31 Jan 2017 12:19:20 +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:c09::233 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:211790 Archived-At: >>>>> "LL" == Leo Liu writes: LL> On 2017-01-30 10:58 -0500, John Wiegley wrote: >> Can add-function infer that a -function variable with a value of "nil" is >> equivalent to it having a value of 'ignore? LL> It doesn't make sense for add-function to default to #'ignore. In many LL> cases `nil' of these variables doesn't mean #'ignore. I see, that is a bit unfortunate. The value of having a default would be to know what the default behavior is, without having to track down the logic. -- John Wiegley GPG fingerprint = 4710 CF98 AF9B 327B B80F http://newartisans.com 60E1 46C4 BD1A 7AC1 4BA2