From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.bugs Subject: bug#67226: 30.0.50; Regression in previous-complete-history-element with empty input Date: Thu, 16 Nov 2023 19:32:13 +0200 Organization: LINKOV.NET Message-ID: <86leaxsixu.fsf@mail.linkov.net> References: <87il62m110.fsf.ref@aol.com> <87il62m110.fsf@aol.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29645"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/30.0.50 (x86_64-pc-linux-gnu) Cc: Stefan Monnier , 67226@debbugs.gnu.org To: Ergus Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Nov 16 18:36:16 2023 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 1r3gHo-0007al-97 for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 16 Nov 2023 18:36:16 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r3gHe-0005Kg-V0; Thu, 16 Nov 2023 12:36:07 -0500 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 1r3gHb-0005He-8C for bug-gnu-emacs@gnu.org; Thu, 16 Nov 2023 12:36:03 -0500 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1r3gHa-0000fy-LI for bug-gnu-emacs@gnu.org; Thu, 16 Nov 2023 12:36:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1r3gHa-0000KC-Ap for bug-gnu-emacs@gnu.org; Thu, 16 Nov 2023 12:36:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Juri Linkov Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 16 Nov 2023 17:36:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 67226 X-GNU-PR-Package: emacs Original-Received: via spool by 67226-submit@debbugs.gnu.org id=B67226.17001561441210 (code B ref 67226); Thu, 16 Nov 2023 17:36:02 +0000 Original-Received: (at 67226) by debbugs.gnu.org; 16 Nov 2023 17:35:44 +0000 Original-Received: from localhost ([127.0.0.1]:44449 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1r3gHI-0000JS-4f for submit@debbugs.gnu.org; Thu, 16 Nov 2023 12:35:44 -0500 Original-Received: from relay4-d.mail.gandi.net ([2001:4b98:dc4:8::224]:54651) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1r3gHB-0000J7-Ui for 67226@debbugs.gnu.org; Thu, 16 Nov 2023 12:35:42 -0500 Original-Received: by mail.gandi.net (Postfix) with ESMTPSA id 08B38E0003; Thu, 16 Nov 2023 17:35:28 +0000 (UTC) In-Reply-To: <87il62m110.fsf@aol.com> (Ergus via's message of "Thu, 16 Nov 2023 11:43:23 +0100") X-GND-Sasl: juri@linkov.net X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:274474 Archived-At: > When using previous-complete-history-element like: > > The behavior changed sometime recently, because > > When the input is empty it shows: > > [No earlier matching history item] > > Previously it behaved like `previous-history-element` in that case. > > Is this intended due to some recent change or is it an issue? > > ``` > Emacs -Q > > M-: (keymap-set minibuffer-local-map "" #'previous-complete-history-element) > > M-x some-command1 > M-x some-command2 > M-x some-command3 > M-x > ``` The regression is on this line in `previous-matching-history-element`: (string-match (concat ".*\\(" regexp "\\)") match-string) In GNU Emacs 29.1.90 (string-match ".*\\(^\\)" "foo") => 0 But in GNU Emacs 30.0.50 (string-match ".*\\(^\\)" "foo") => nil Cc:ing Stefan.