From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Marius Vollmer Newsgroups: gmane.emacs.devel Subject: Re: Emacs Lisp and Guile Date: 02 Aug 2002 12:23:08 +0200 Sender: emacs-devel-admin@gnu.org Message-ID: References: <200207200035.g6K0ZAb27891@aztec.santafe.edu> <200207212015.g6LKF4c00874@aztec.santafe.edu> <200207251807.g6PI75d07615@aztec.santafe.edu> <874renlito.fsf@zagadka.ping.de> <200207271853.g6RIre710837@aztec.santafe.edu> <200207310554.g6V5ssc16508@aztec.santafe.edu> NNTP-Posting-Host: localhost.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: quoted-printable X-Trace: main.gmane.org 1028283811 25598 127.0.0.1 (2 Aug 2002 10:23:31 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Fri, 2 Aug 2002 10:23:31 +0000 (UTC) Cc: rms@gnu.org, neil@ossau.uklinux.net, raeburn@raeburn.org, emacs-devel@gnu.org Return-path: Original-Received: from quimby.gnus.org ([80.91.224.244]) by main.gmane.org with esmtp (Exim 3.33 #1 (Debian)) id 17aZak-0006ek-00 for ; Fri, 02 Aug 2002 12:23:30 +0200 Original-Received: from fencepost.gnu.org ([199.232.76.164]) by quimby.gnus.org with esmtp (Exim 3.12 #1 (Debian)) id 17aZts-000352-00 for ; Fri, 02 Aug 2002 12:43:16 +0200 Original-Received: from localhost ([127.0.0.1] helo=fencepost.gnu.org) by fencepost.gnu.org with esmtp (Exim 3.35 #1 (Debian)) id 17aZbH-0006cB-00; Fri, 02 Aug 2002 06:24:03 -0400 Original-Received: from krusty.dt.e-technik.uni-dortmund.de ([129.217.163.1] helo=mail.dt.e-technik.uni-dortmund.de) by fencepost.gnu.org with esmtp (Exim 3.35 #1 (Debian)) id 17aZaj-0006bU-00; Fri, 02 Aug 2002 06:23:29 -0400 Original-Received: from burns.dt.e-technik.uni-dortmund.de (burns.dt.e-technik.uni-dortmund.de [129.217.163.19]) by mail.dt.e-technik.uni-dortmund.de (Postfix) with ESMTP id 9B932A3831; Fri, 2 Aug 2002 12:23:27 +0200 (CEST) Original-Received: by burns.dt.e-technik.uni-dortmund.de (Postfix, from userid 520) id 74EB12613A; Fri, 2 Aug 2002 12:23:09 +0200 (CEST) Original-To: Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai =?iso-8859-15?q?Gro=DFjohann?=) In-Reply-To: Original-Lines: 20 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.1 Errors-To: emacs-devel-admin@gnu.org X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.0.11 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Emacs development discussions. List-Unsubscribe: , List-Archive: Xref: main.gmane.org gmane.emacs.devel:6245 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:6245 Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai Gro=DFjohann) writes: > Marius Vollmer writes: >=20 > > What is a typical part of the system specification that makes use of > > Elisp's dynamic scoping? >=20 > I don't know what you mean by "system specification", but I guess > that a lot of code assumes that variables declared with defvar (or > defcustom) can be bound fluidly. For example, to write something to > a file with a specific coding system, one would say >=20 > (let ((coding-system-for-write 'foo)) > (write-region ...)) Hmm, yes. This is a thing that must be done right when implementing Elisp on top of Guile. Of course we must respect the dynamic scoping rules of Elisp for Elisp itself. I was asking about the spec of the whole system where one can write in both Elisp and Scheme and access a common global state.