From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.help Subject: Re: Calling a function with undefined symbol Date: Wed, 02 Nov 2022 13:14:55 +0100 Message-ID: <87wn8dzh6o.fsf@web.de> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="35075"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: Stefan Monnier To: Stefan Monnier via Users list for the GNU Emacs text editor Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Nov 02 13:15:48 2022 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oqCep-000911-Sw for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 02 Nov 2022 13:15:47 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oqCeH-0004fx-5I; Wed, 02 Nov 2022 08:15:14 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oqCeB-0004dk-Kw for help-gnu-emacs@gnu.org; Wed, 02 Nov 2022 08:15:07 -0400 Original-Received: from mout.web.de ([212.227.17.12]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oqCe9-0004hK-OK for help-gnu-emacs@gnu.org; Wed, 02 Nov 2022 08:15:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=s29768273; t=1667391298; bh=2r4qFLDUvr40/ShimNKT8gqhHuEtIL1rNWgRom6l2fA=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date; b=vjSg9D1wO2YgYLyoJoYSXRfADs5c41LCmQ1klBLeA1Oq/Ek2VyXbvDHlN2o7GsDTw 9vGHLtgtPkrlel+tSoRM/ZhSrmxFK4WXm0WKrjfg7DU8LaeQfObnuHaEmhXi68oTgM FXRHDjghssywIZhnjhlI0NudnUvGSUaXjFKYGPfs1Ulq6GC/Zjr9LvFy330Kwu6gPQ t89cH2rD/jwfL7KRhbMdgaOhPxh6ElUd1oJCwVeEkZeCd3r0B3d3vQNANmOS/OeCuI z5aZ2tQRupLRNyjhO0F5fF8MXC0GJ44w4kkFc1G8zpMN9IFKpmTth/rFecVNi9Vt8f xT4nBrnqJpP3A== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Original-Received: from drachen.dragon ([88.66.71.129]) by smtp.web.de (mrweb105 [213.165.67.124]) with ESMTPSA (Nemesis) id 1MrOhx-1pLyRJ22ul-00o4xE; Wed, 02 Nov 2022 13:14:58 +0100 In-Reply-To: (Stefan Monnier via Users list for the's message of "Mon, 31 Oct 2022 08:29:01 -0400") X-Provags-ID: V03:K1:5HWPIPx95Ug+c/fYWjqqTcdl9w+1T4v3ba6+2Ewz+T5Vz+0mhYP OnWKqYNXouXUko/olN/Phsb1Dqh+d5F7s9a+mFA/HqhfxNuV8xGtviR19m4EDeTavgjxO3R OsSaKoU/fHQ+EhATTYZCIvGKGP16kKT1VSSGtPKBbBhcLS2hGMFlv8lGAuiivz8Uc+hXrz4 TrbGCecTqfI02jQbeqfTg== UI-OutboundReport: notjunk:1;M01:P0:Tpxhf9mwd5I=;F6p72VVQDtf9Vr+wE8g6oT+2Fd/ olaOgLVe8qjife/wEOrsV0FO3jFuhWlXBHSAPQV87va34Yaa9QVDdjd7/ARpPTTqL/dUFyO45 lTMLCofOuwXW/QCA5SFhjtsn9SVUemXeNswSjVrchscNjpN4XoBKD6HH5kwLP8PDhTuU7KOYB wk78W/rUEhgwrHSOOddvTeVKS+TrvIBCMJg+sb3KIqu4GZtPPuDSQNfHOtsrJROwBbAieLkMp R2Xk6r8uRZy7EWOWq+PFCzhHQ2qjC9WUhGXqxN8aJFZG5Uzaf2e7EQiN4jDVuigJwgOS0rFSF gUbd+SzBFZbmlyH7y1KpVY937sAhFdMQyZqhCNx4R97cq4nMUCTxRmZ8xei6Wbd4YAybb7U83 uMtj1ZCnxbHQLBS88POyiuV3L+tW97jFOTIdVR3IQkATcfkz3NxqMFriZ1PQukcC4mi2oIM7i cnaEfEQEHJ2dXf9j3lCPu8DU7k44sxEeebsNFoeZHuZ9X0/TzFDlSkJjSa5qIAq6AhAwfKQqh 7Cl5DjDHtILtfa0k0u5LSwHGW9J+on7DDauMdr9cyrSBO1aomluGzffNYy6pne7kFKXXSuIMy F/i+3gROJ51U1HUlrt+xBLeMPV/NJc2TaP+vZ7enAcmV3xh3crCeeCNbmpM+r1x4cRpnsQA4O 4qUiSSG+2FZAJCFFaurJTCyTn+bKu84YZWJtaKZYNdcjdFn+Bhj7y7ILiUwt6V5cJXaxr4WbL 6WnK34vAw633UJtxRMcJClUHa7xjl9+JIaSniVU8FvKCmr4yUS+viRq1VVFqzet8mjzZ4HJb Received-SPF: pass client-ip=212.227.17.12; envelope-from=michael_heerdegen@web.de; helo=mout.web.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: "help-gnu-emacs" Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:140567 Archived-At: Stefan Monnier via Users list for the GNU Emacs text editor writes: > Nitpick: > > 'go > > is an *expression*, not a symbol. > That expression returns a symbol, the symbol: > > go Here is a nice exercise about that: Say the variable `x` is bound to '''''''''''''''''''''''''''''''''... i.e. a value that is a quoted thing where the thing is the same value again (such a value exists in Elisp!) - what would evaluating (eq 'x x) and (equal 'x x) yield, and why? Michael.