From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Marcin Borkowski Newsgroups: gmane.emacs.help Subject: [OT] What langauges have symbols? Date: Fri, 30 Jun 2017 06:24:19 +0200 Message-ID: <87efu2w1ak.fsf@jane> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1498796714 4838 195.159.176.226 (30 Jun 2017 04:25:14 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 30 Jun 2017 04:25:14 +0000 (UTC) User-Agent: mu4e 0.9.19; emacs 26.0.50 To: Help Gnu Emacs mailing list Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Jun 30 06:25:09 2017 Return-path: Envelope-to: geh-help-gnu-emacs@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 1dQnUT-0000sg-36 for geh-help-gnu-emacs@m.gmane.org; Fri, 30 Jun 2017 06:25:09 +0200 Original-Received: from localhost ([::1]:42434 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dQnUW-0007pu-KA for geh-help-gnu-emacs@m.gmane.org; Fri, 30 Jun 2017 00:25:12 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:53912) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dQnU2-0007pn-Hh for help-gnu-emacs@gnu.org; Fri, 30 Jun 2017 00:24:43 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dQnTz-0002tl-B1 for help-gnu-emacs@gnu.org; Fri, 30 Jun 2017 00:24:42 -0400 Original-Received: from mail.mojserwer.eu ([195.110.48.8]:36272) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dQnTz-0002sI-4A for help-gnu-emacs@gnu.org; Fri, 30 Jun 2017 00:24:39 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by mail.mojserwer.eu (Postfix) with ESMTP id BB9CAE6A84 for ; Fri, 30 Jun 2017 06:24:31 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mail.mojserwer.eu Original-Received: from mail.mojserwer.eu ([127.0.0.1]) by localhost (mail.mojserwer.eu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SFwvSsSAC_ZB for ; Fri, 30 Jun 2017 06:24:27 +0200 (CEST) Original-Received: from localhost (static-dwadziewiec-jedenpiec7.echostar.pl [109.232.29.157]) by mail.mojserwer.eu (Postfix) with ESMTPSA id 41E85E62E2 for ; Fri, 30 Jun 2017 06:24:27 +0200 (CEST) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.110.48.8 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.help:113610 Archived-At: Hi there, this is clearly OT, but where could I ask that? What langauges besides Lisps have "symbols"? And I not only mean the name, of course, but also the properties. For instance, ES6 seems to have something similar, but it seems to me that you can't have a variable containing a symbol and say something like (set var val) where val is assigned to a variable whose name is the value of var (i.e., that symbol). In Elisp, OTOH, you can say e.g. (set (intern "some-string") 123) (+ some-string 1) and obtain 124. My point here is that you can now use a variable called "some-symbol" without any additional syntax sugar. In yet another words, we have both set and setq, whereas most languages seem to only have an equivalent of setq. TIA, -- Marcin Borkowski