From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: How the backquote and the comma really work? Date: Fri, 26 Jun 2015 17:06:52 +0200 Message-ID: <87ioaav78z.fsf@nl106-137-147.student.uu.se> References: <87vbebg1fs.fsf@mbork.pl> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1435332526 23360 80.91.229.3 (26 Jun 2015 15:28:46 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 26 Jun 2015 15:28:46 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Jun 26 17:28:34 2015 Return-path: Envelope-to: geh-help-gnu-emacs@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 1Z8VYP-0006O9-8Y for geh-help-gnu-emacs@m.gmane.org; Fri, 26 Jun 2015 17:28:33 +0200 Original-Received: from localhost ([::1]:60770 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z8VYO-0002d9-Bn for geh-help-gnu-emacs@m.gmane.org; Fri, 26 Jun 2015 11:28:32 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37864) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z8VGb-0005BA-1t for help-gnu-emacs@gnu.org; Fri, 26 Jun 2015 11:10:09 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z8VGX-0004jN-Qv for help-gnu-emacs@gnu.org; Fri, 26 Jun 2015 11:10:08 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:50477) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z8VGX-0004iB-GH for help-gnu-emacs@gnu.org; Fri, 26 Jun 2015 11:10:05 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Z8VGW-0006AL-Q0 for help-gnu-emacs@gnu.org; Fri, 26 Jun 2015 17:10:04 +0200 Original-Received: from nl106-137-98.student.uu.se ([130.243.137.98]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 26 Jun 2015 17:10:04 +0200 Original-Received: from embe8573 by nl106-137-98.student.uu.se with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 26 Jun 2015 17:10:04 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Original-Lines: 23 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: nl106-137-98.student.uu.se Mail-Copies-To: never User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) Cancel-Lock: sha1:V0ZS4nS3fabNpCv10J9UBSkA2Qo= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:105198 Archived-At: Marcin Borkowski writes: > I decided that the time has come that I finally > approach the scary backquote-comma duo. (While > I understand it superficially, I’d like to get it > right and thoroughly this time.) So my question is > whether my mental model (see below) is correct. The backtick isn't complicated at all. Besides you got it right. Here is how it works: '(this is not a five) `(this is still not a five) ; no reason for backtick here (let ((five 5)) `(now it is a ,five) ) -- underground experts united http://user.it.uu.se/~embe8573