From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: RFC: String interpolation Date: Thu, 08 Dec 2016 15:04:08 -0500 Message-ID: References: <51825111-ace4-f750-4077-026a3b648d27@gmail.com> <87r35iwkg7.fsf@fastmail.fm> <0e6143f6-456b-5086-db27-439df4a5be27@gmail.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1481227474 4262 195.159.176.226 (8 Dec 2016 20:04:34 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 8 Dec 2016 20:04:34 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Dec 08 21:04:30 2016 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 1cF4ve-0000Fh-1B for ged-emacs-devel@m.gmane.org; Thu, 08 Dec 2016 21:04:30 +0100 Original-Received: from localhost ([::1]:48675 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cF4vi-0004ib-4p for ged-emacs-devel@m.gmane.org; Thu, 08 Dec 2016 15:04:34 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:45223) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cF4vX-0004eK-9J for emacs-devel@gnu.org; Thu, 08 Dec 2016 15:04:24 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cF4vT-0002i7-BK for emacs-devel@gnu.org; Thu, 08 Dec 2016 15:04:23 -0500 Original-Received: from [195.159.176.226] (port=59615 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cF4vT-0002hM-3z for emacs-devel@gnu.org; Thu, 08 Dec 2016 15:04:19 -0500 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1cF4vK-0005q6-85 for emacs-devel@gnu.org; Thu, 08 Dec 2016 21:04:10 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 12 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:J4Ojv0btwmmMJRRWwM56ecVRQSc= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 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:210151 Archived-At: >>> fmt expands the strings at compile time (so they must be constant >>> strings). >> I've occasionally appreciated the fact that I can pass a dynamically >> created format string to `format'... ;-) Ok, I could always use >> `format' in such cases. > Yes; otherwise, fmt becomes a thinly veiled eval, and that isn't great. Not only that, but if it's a function it doesn't have access to the variables in the lexical scope of the caller. Stefan