From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Stephen Berman Newsgroups: gmane.emacs.bugs Subject: bug#38458: 27.0.50; case-insensitive substring completion Date: Mon, 02 Dec 2019 22:37:19 +0100 Message-ID: <87fti2v27k.fsf@rub.de> References: <87sgm2v9np.fsf@gmx.net> <8336e2lanc.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="89338"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: Stefan Monnier , 38458@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Dec 02 22:54:46 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1ibteY-000N8L-OU for geb-bug-gnu-emacs@m.gmane.org; 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Mon, 02 Dec 2019 16:38:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Stephen Berman Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 02 Dec 2019 21:38:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 38458 X-GNU-PR-Package: emacs Original-Received: via spool by 38458-submit@debbugs.gnu.org id=B38458.15753226584610 (code B ref 38458); Mon, 02 Dec 2019 21:38:01 +0000 Original-Received: (at 38458) by debbugs.gnu.org; 2 Dec 2019 21:37:38 +0000 Original-Received: from localhost ([127.0.0.1]:39064 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ibtNx-0001CI-Mv for submit@debbugs.gnu.org; Mon, 02 Dec 2019 16:37:37 -0500 Original-Received: from mout.gmx.net ([212.227.15.18]:55015) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ibtNw-0001C4-24 for 38458@debbugs.gnu.org; Mon, 02 Dec 2019 16:37:36 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1575322641; bh=EFe/GxImV15GpMvt1j3lOl0ijjoqJKLJYH2fFA/ykLA=; h=X-UI-Sender-Class:From:To:Cc:Subject:References:Date:In-Reply-To; b=DNxHtO1gTK37ihrjhP+x++sUp2EuwcSgvJdeppWxR/rN2WyDObQ3y7SkT52N09yPT tLN8W/3a17qrR4FTJ7fuo94yjw5l68u2Qck4wnu5VOEEhpU/NLnz8IWcFSW8RdyPLY /fcfadmfGRWNosNrE5n2rf5bv2jhehamGglmguP0= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Original-Received: from strobe-lfs84 ([188.109.175.134]) by mail.gmx.com (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MI5Q5-1iWiaV3YiV-00FG6T; Mon, 02 Dec 2019 22:37:21 +0100 In-Reply-To: <8336e2lanc.fsf@gnu.org> (Eli Zaretskii's message of "Mon, 02 Dec 2019 22:45:11 +0200") X-Provags-ID: V03:K1:GfGFRRM88Qhp3zQK1saKaUphlxGtvSKa4byPkaFhK3LB72vX4B3 gJuj+wLzVAqoHucD+rtbqy+bdPB1BHT5GKSdTqY99hISTKO1TUtRSGc+cjfGARxzORfduMw oW+lsd+wpnQjIO3k1LA9bMHpJ3RyCFq5dYk4Qzt5QyZyllgcWIIK3tiSAJwUzoW/imskxYN iRD5NapiCHKfYo0Jjaeuw== X-UI-Out-Filterresults: notjunk:1;V03:K0:E1y+BhvanIQ=:PjXdgKZIg9NA5CoWtSU+AT qg5OdOG3zZ5aylWn2jYeVjLnZY7Ke4JjQhhdtd8Ykz6B925hC/IumgGxdq8P1mGDQe7TbYzH2 uoUHX7/pA4taDITNmhoi1IpRTMO2YTUbJc68Llcag0WDjz/GoHTJdEEx6taq7AwS+vLuDuR77 YEioGSK7dLZNQKeA+uWiI8S8AQDtrkGVJwkA9o+WwDnw9e8r8vx8S3OaV8+X2cbVu5ACBR+u8 h+jhUm3iQgwH9tqSsV+IhxmZ8y4hclHgN96l+lTMcVBdwHYTO2096zdOn1t48GHlmA5+wN7qv Kk7aqskMUbbdp5WUtz35WONqAARnLp7CpQs//xjrUAX0X92XfrnYAYtCSlkCcG/ZOo7qzm1cM uye/ZbQvc13ZkTxHRCQvs2PVk//2bXkmYJ4uURNBPZC8We6FaVxk2lyfUqIQ7DHeLuUxfxXcH UjBAse/F7ME3H2H5aae6G8etEwNdOiTwcYeZW336vvXCMZJ+jD2ypIKXnHf3JQ5Pwu7rOvD65 16RG5d+fKFxclMaqQzSGTZqMM9a91QNVgHGOTqrmK7LyVjh4i2C7TufhC+T+vQ8l8wQLYv4ob h56Awd32yp5SWj8ryAu29ErOdh2GEIVYrtIvhr54xBR4d6aizzHppyT85pF32RhJKR/RrUTus Y5Ct3MwlL4QJHC8zfUYqFILC6773RtHr/8j7pBSM5BMcALgpp36nPlnSKrOT/PKdlNGigYlQK v/KNdL7zKbupbRdrz/hKIu4ptnGbsngXcqQMC088QQvmAghitQKb63JDVsotxQN2hyatpvQ6 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:172790 Archived-At: On Mon, 02 Dec 2019 22:45:11 +0200 Eli Zaretskii wrote: >> From: Stephen Berman >> Date: Mon, 02 Dec 2019 19:56:26 +0100 >> >> Typing TAB for case-insensitive substring completion of file and buffer >> names can put the cursor in the wrong position in the minibuffer. To >> reproduce: >> >> 0. $ mkdir /tmp/test; touch /tmp/test/{testing,Testing} >> 1. $ emacs-master -Q --eval "(setq read-buffer-completion-ignore-case t >> read-file-name-completion-ignore-case t completion-category-overri= des >> '((buffer (styles substring)) (file (styles substring))))" >> 2. Type `C-x C-f /tmp/test/tes TAB' >> =3D> The minibuffer displays this, with point (^) after `s' in `testing= ': >> Find file: /tmp/test/testing >> ^ >> 3. Visit /tmp/test/testing and /tmp/test/Testing, then from a buffer >> other than these, e.g. /temp/test, type `C-x b tes TAB' >> >> =3D> The minibuffer displays this, with point (^) after `s' in `testing= ': >> Switch to buffer (default *scratch*): testing >> ^ >> >> I think these are unintended side effects of these two changes: > > If those changes caused this issue, then I think there was already a > bug in the substring completion style, which was just exposed by those > changes. > > CC'ing Stefan in the hope that he could show us the light. FWIW, when I step through completion--do-completion at step 2 in the above recipe, the return value of completion-try-completion is ("/tmp/test/testing" . 17) in builds before commit 0b21ecdb5e and ("/tmp/test/testing" . 13) in builds after that commit. Consequently, on executing (forward-char (- comp-pos (length completion))) later in completion--do-completion, point moves back 4 characters in later builds and stays put in earlier builds. Steve Berman