From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.help Subject: Re: How the backquote and the comma really work? Date: Wed, 12 Aug 2015 17:01:45 +0200 Message-ID: <87mvxweejq.fsf@web.de> References: <87vbebg1fs.fsf@mbork.pl> <87r3ozy9pf.fsf@web.de> <87si9ffys0.fsf@mbork.pl> <87d20jbqbj.fsf@web.de> <87pp4jfx9y.fsf@mbork.pl> <87615sxn1a.fsf@mbork.pl> <87zj318j7z.fsf@web.de> <87mvz1b16h.fsf@mbork.pl> <87k2u5azfi.fsf@mbork.pl> <87bnf5npml.fsf@web.de> <87io8mgmhk.fsf@mbork.pl> <87wpx1d9o3.fsf@gmail.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1439391753 28325 80.91.229.3 (12 Aug 2015 15:02:33 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 12 Aug 2015 15:02:33 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Aug 12 17:02:27 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 1ZPXXu-0006CK-VM for geh-help-gnu-emacs@m.gmane.org; Wed, 12 Aug 2015 17:02:27 +0200 Original-Received: from localhost ([::1]:39034 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZPXXu-0003FD-8D for geh-help-gnu-emacs@m.gmane.org; Wed, 12 Aug 2015 11:02:26 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49562) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZPXXd-0003E5-HS for help-gnu-emacs@gnu.org; Wed, 12 Aug 2015 11:02:13 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZPXXY-0006oO-J8 for help-gnu-emacs@gnu.org; Wed, 12 Aug 2015 11:02:09 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:51608) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZPXXY-0006oE-CO for help-gnu-emacs@gnu.org; Wed, 12 Aug 2015 11:02:04 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1ZPXXX-0005ww-6R for help-gnu-emacs@gnu.org; Wed, 12 Aug 2015 17:02:03 +0200 Original-Received: from ip-90-186-149-125.web.vodafone.de ([90.186.149.125]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 12 Aug 2015 17:02:03 +0200 Original-Received: from michael_heerdegen by ip-90-186-149-125.web.vodafone.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 12 Aug 2015 17:02:03 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 23 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: ip-90-186-149-125.web.vodafone.de User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) Cancel-Lock: sha1:UVSZdvx4N7sq4nRY8Flln58cBOM= 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:106502 Archived-At: Thorsten Jolitz writes: > funny enough, this was discussed recently on the PicoLisp mailing list > too, and I was surprised to find out that in Emacs Lisp 'Read Macros' > like backquote/comma rather seem to work at run time, while the > PicoLisp equivalents quote/backquote work at read time. I don't know PicoLisp, but looking at http://software-lab.de/doc/ref.html, it indeed seems that backquote in PicoLisp is something very different than in Common Lisp or Emacs Lisp or Scheme. AFAICT a backquoted expression really seems to be evaluated by the reader there. > How does this work in Emacs Lisp? Is the backquote/comma actually a > function call at runtime? > > [I did not follow the whole discussion, I hope I don't ask something > already answered] Yes, just read the thread ;-) Michael.