From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: "Basil L. Contovounesios" via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#49866: 28.0.50; gnus-summary-exit from the transient search buffer giving error Date: Fri, 06 Aug 2021 11:22:08 +0100 Message-ID: <87v94ij2jz.fsf@tcd.ie> References: <87zgtxlho6.fsf@gnus.org> <87mtpwi2wy.fsf@gnus.org> <87tuk34zr8.fsf@ericabrahamsen.net> <87k0kz4vxr.fsf@ericabrahamsen.net> <87a6lv4tp6.fsf@ericabrahamsen.net> <87im0j4cjs.fsf@ericabrahamsen.net> <87y29ec44t.fsf@gnus.org> Reply-To: "Basil L. Contovounesios" Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28650"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Eric Abrahamsen , 49866@debbugs.gnu.org, Pankaj Jangid To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Aug 06 12:23:12 2021 Return-path: Envelope-to: geb-bug-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 1mBx0R-0007GC-W3 for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 06 Aug 2021 12:23:12 +0200 Original-Received: from localhost ([::1]:60704 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mBx0Q-0007VX-5b for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 06 Aug 2021 06:23:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54622) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mBx0I-0007VO-Nn for bug-gnu-emacs@gnu.org; Fri, 06 Aug 2021 06:23:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:37637) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mBx0I-00019U-HB for bug-gnu-emacs@gnu.org; Fri, 06 Aug 2021 06:23:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mBx0I-0004wm-EO for bug-gnu-emacs@gnu.org; Fri, 06 Aug 2021 06:23:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: "Basil L. 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Something in both Pankaj and >> my installation has messed with the map functions so that this returns >> an error: >> >> (map-merge 'list '(1 2 3) nil) >> >> I couldn't raise an error with "emacs -Q", instead it returned: >> >> ((1 . 2) (3)) >> >> which also seems wrong, but at least isn't an error. > > Oh! > > I assumed that map-merge didn't work on nil arguments, too, but didn't > actually check. And indeed: > > (map-merge 'list nil nil) > => nil > > So... do you have an older version of map.el from ELPA/MELPA or > something? The problem isn't nil, it's '(1 2 3). That is neither an alist, plist, nor array, so what is map-merge meant to do with it? Which are the keys of the map, and which the values? Note that a map type of 'list is a synonym for 'alist. -- Basil