From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Kelly Dean Newsgroups: gmane.emacs.devel Subject: Re: Rant - Elisp terminology is deceptive Date: Sat, 24 Jan 2015 10:30:59 +0000 Message-ID: References: <87ppa4uaay.fsf@uwakimon.sk.tsukuba.ac.jp> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1422095541 20407 80.91.229.3 (24 Jan 2015 10:32:21 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 24 Jan 2015 10:32:21 +0000 (UTC) Cc: emacs-devel@gnu.org To: "Stephen J. Turnbull" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Jan 24 11:32:16 2015 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YEy0g-00021s-BP for ged-emacs-devel@m.gmane.org; Sat, 24 Jan 2015 11:32:10 +0100 Original-Received: from localhost ([::1]:34588 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YEy0f-0002UB-NY for ged-emacs-devel@m.gmane.org; Sat, 24 Jan 2015 05:32:09 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36306) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YEy0b-0002TC-FE for emacs-devel@gnu.org; Sat, 24 Jan 2015 05:32:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YEy0Y-0004Qp-6l for emacs-devel@gnu.org; Sat, 24 Jan 2015 05:32:05 -0500 Original-Received: from relay4-d.mail.gandi.net ([2001:4b98:c:538::196]:49383) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YEy0Y-0004QI-1T for emacs-devel@gnu.org; Sat, 24 Jan 2015 05:32:02 -0500 Original-Received: from mfilter14-d.gandi.net (mfilter14-d.gandi.net [217.70.178.142]) by relay4-d.mail.gandi.net (Postfix) with ESMTP id 27541172085; Sat, 24 Jan 2015 11:32:01 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at mfilter14-d.gandi.net Original-Received: from relay4-d.mail.gandi.net ([217.70.183.196]) by mfilter14-d.gandi.net (mfilter14-d.gandi.net [10.0.15.180]) (amavisd-new, port 10024) with ESMTP id gN6KWQLyUdjF; Sat, 24 Jan 2015 11:31:59 +0100 (CET) X-Originating-IP: 66.220.3.179 Original-Received: from localhost (gm179.geneticmail.com [66.220.3.179]) (Authenticated sender: kelly@prtime.org) by relay4-d.mail.gandi.net (Postfix) with ESMTPSA id 6DFAF172090; Sat, 24 Jan 2015 11:31:57 +0100 (CET) In-Reply-To: <87ppa4uaay.fsf@uwakimon.sk.tsukuba.ac.jp> X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:4b98:c:538::196 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:181720 Archived-At: Stephen J. Turnbull wrote: > Buffer-local values are global values in the usual > sense that they are instance-wide and can be accessed in local context > if not shadowed by let-bindings and the like. Function parameters (or a closure's parameters and environment variables)= are global variables in the sense that they're =E2=80=9Finstance-wide=E2= =80=9D (within the entire function or closure) and can be accessed in loc= al context if not shadowed by let-bindings. But =C2=ABwithin an entire function or closure=C2=BB isn't really instanc= e-wide? Well neither is =C2=ABwithin an entire buffer=C2=BB. The global environment is the outermost one. A buffer's environment is no= t. There's only one global environment. There can be multiple buffers and= multiple closures, each with its own environment. =E2=80=9FBuffer-local=E2= =80=9D is a perfectly good term for buffer-locals. Calling them =E2=80=9F= global=E2=80=9D would be misleading, and it's good that Emacs doesn't do = that. =E2=80=9FGlobal=E2=80=9D is the right term for globals.