From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#67226: 30.0.50; Regression in previous-complete-history-element with empty input Date: Sat, 25 Nov 2023 11:39:10 +0200 Message-ID: <83zfz2cgu9.fsf@gnu.org> References: <87il62m110.fsf.ref@aol.com> <87il62m110.fsf@aol.com> <86leaxsixu.fsf@mail.linkov.net> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8148"; mail-complaints-to="usenet@ciao.gmane.io" Cc: spacibba@aol.com, 67226@debbugs.gnu.org To: Juri Linkov , monnier@iro.umontreal.ca Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Nov 25 10:40:14 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 1r6p94-0001tY-Bt for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 25 Nov 2023 10:40:14 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r6p8p-0002MC-1b; Sat, 25 Nov 2023 04:39:59 -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 1r6p8n-0002Lp-3Q for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2023 04:39:57 -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 1r6p8m-0001DL-RR for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2023 04:39:56 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1r6p8r-000403-Pt for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2023 04:40:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 25 Nov 2023 09:40:01 +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=B67226.170090516615326 (code B ref 67226); Sat, 25 Nov 2023 09:40:01 +0000 Original-Received: (at 67226) by debbugs.gnu.org; 25 Nov 2023 09:39:26 +0000 Original-Received: from localhost ([127.0.0.1]:37849 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1r6p8I-0003z8-Ez for submit@debbugs.gnu.org; Sat, 25 Nov 2023 04:39:26 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55894) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1r6p8G-0003yu-D3 for 67226@debbugs.gnu.org; Sat, 25 Nov 2023 04:39:25 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r6p85-00017O-44; Sat, 25 Nov 2023 04:39:13 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=NBeY1pB/CnCiL80l2lhfkXVSzLP8ypljTXKX3iWpXCE=; b=LAxUwIdNVmYN dUbGbNLiSqI+z3PClFSObw9Y8YoXpUsUtb+OI/cF5YDeA4DtD1TppnepQYMs1rI0yBwCs1yxWyrmq E1KolDEiX7TFVMAFc+5lZXQOWZmslx0RdzGPMKZxXTxNmcDUtfdOk+Pgt89l7gchU7ML7MV6jbFaZ 6M2Yd/BHRyxOowRRft+NRlv4yOioU1dJbrBrA45uqjzJB9rp8nUFyjbJ/mXmpkIkIKeciQVxyWYW6 aXSbsviwXAbD7Bvlbu8abZU4A3ly1a4TDD0NjqWvjYtLzhSWafy4KWOL2DUxl3IsMyoZR7cYpwgM0 xutHAL/UP6VSLx4XGHT75g==; In-Reply-To: <86leaxsixu.fsf@mail.linkov.net> (message from Juri Linkov on Thu, 16 Nov 2023 19:32:13 +0200) 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:274940 Archived-At: Stefan, any comments? > Cc: Stefan Monnier , 67226@debbugs.gnu.org > From: Juri Linkov > Date: Thu, 16 Nov 2023 19:32:13 +0200 > > > 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. > > > >