From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stephen Berman Newsgroups: gmane.emacs.devel Subject: Re: dired-do-find-regexp failure with latin-1 encoding Date: Sat, 28 Nov 2020 19:46:18 +0100 Message-ID: <877dq5jp51.fsf@gmx.net> References: <87blfhjr4q.fsf@gmx.net> <83k0u5mjvf.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29366"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Nov 28 19:48:35 2020 Return-path: Envelope-to: ged-emacs-devel@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 1kj5Gt-0007WF-F1 for ged-emacs-devel@m.gmane-mx.org; Sat, 28 Nov 2020 19:48:35 +0100 Original-Received: from localhost ([::1]:60398 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kj5Gs-0004Fr-Gg for ged-emacs-devel@m.gmane-mx.org; Sat, 28 Nov 2020 13:48:34 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54294) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kj5Et-0002Ri-62 for emacs-devel@gnu.org; Sat, 28 Nov 2020 13:46:31 -0500 Original-Received: from mout.gmx.net ([212.227.15.15]:43873) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kj5En-0006M8-Gs; Sat, 28 Nov 2020 13:46:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1606589183; bh=Uu8RaN5iFpCwBzHSRH+5fsTD57TKM6KIa5l0fcytnsw=; h=X-UI-Sender-Class:From:To:Cc:Subject:References:Date:In-Reply-To; b=LQdvHd0YuVoBDxF3tUKaDgemH9zZjaNn1jEgaPYPS6vC9PESeQkCPrktfVSWo5A7v LCbE+wVmrdOjPzAkrKn8cOX0FKhLitm26D8d1q7lDZCQfnib1dSQh+LcSNZRQvyJDp oZskIGZUDrgtyTv+I1ZYzKfa5YnE80fc8TM65Q6M= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Original-Received: from strobe-jhalfs ([188.109.153.25]) by mail.gmx.com (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1Mq2nA-1kMPaX06q2-00nDOA; Sat, 28 Nov 2020 19:46:23 +0100 In-Reply-To: <83k0u5mjvf.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 28 Nov 2020 20:11:48 +0200") X-Provags-ID: V03:K1:Bmhjw/rGmpLmkDu8SR3qpDtCAsGLN92Z8mH6Tmy0WJjyd0Sc1Ge VEeEuCc+hYtkytmAg3HJBYSBPX0ayAZI77qjAfLVTD4ZWpF3LUuDT5I1AnPYt7nMRxljVI7 scpFkRaty4+Xfg9ID52m7WrYoZEkUq3ozFHV7YL1EAUa2RvbPX4L/8rFYI+n38W46dZLwit mv/eabW3zZjIMhAAED2Lw== X-UI-Out-Filterresults: notjunk:1;V03:K0:Co+unRGXUso=:YV+muRvIPaI7gLAz+SDowA hcp24ANEd75J5yAzwLyz+dcjL4vpBZuI/jC1T2rOG1wSfqQbkG5l6EQkBM6K1KEQ02aRD7SnO +J9OnSJ8J8X4NjFVJG2rCy1+6iF+s0aukXHEA/iEcPqg4r1DqESjEmGIdZIHrq81SDgRH2CYy I3FAzZvIGAH6auuOzlFslyUtd6MTbXsAJQAKyDpDWGqa0DUjZQBNlK96lAq38STf0FBDPiZyf Z+U5gH6EM1ce6OwA2U5b7ibOnjh6U8k/iJmhsI2VVhxbVSkmoRBQDgeRS+npQu4SDmcvPzZGr dFCIlnLTVrdVZFgpASz0wzeKtp5yXhuSyGCkC84UclUHxObzoB2LWAi+Tq4s6dJIhW7s68+MZ PUK63jqmviZ5wgDexUh9/BVSyYUf6e6wMZlp1quPPxppYzKBX/LcTtXzgjQSISHf1kkcrWFdT o3D1LVsQ1SQu2RYd0SZG0dFrKstzlS+rkfX0Izj/DnhGLq4PUeikrXSJ3e6Vw+ND/LcYGyCsw pwrNR0JkGhXAlkSMT2B21pyxC3fhXP72qfCqfFY8KLFwWbQS5PA5V0uiqLk2jR0xLNfeoIjmj NE3GQFHzYucWRR6t69IDUCXZQOWqgUZZfPQdTKmPdXUVGM1DCSBgNhgKEhwjF91q7jHMNRCMr Rw8CSXiaAqG6Ca3Xc+a1Qk/htGUHPCdw/s4IotfmNHC5gH4OzR9/r1VdPZtDzR3efTAvjY69M GxwHr0PS5wNKJVrrQYTh6BTyo0bYwE63OXRFxmLzQQnsz7bGc02e8lDhizSyldlh/1q1Ftij Received-SPF: pass client-ip=212.227.15.15; envelope-from=stephen.berman@gmx.net; helo=mout.gmx.net X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:259967 Archived-At: On Sat, 28 Nov 2020 20:11:48 +0200 Eli Zaretskii wrote: >> From: Stephen Berman >> Date: Sat, 28 Nov 2020 19:03:17 +0100 >>=20 >> 0. echo a=C3=A4 > /tmp/test >> 1. emacs -Q /tmp/test ; the file encoding is utf-8 >> 2. Type `C-x d RET', mark the file 'test', type `A a RET' >> =3D> *xref* displays the line 'a=C3=A4' >> 3. In buffer 'test' type `C-x RET f iso-8859-1 RET' and then `C-x C-s' >> 4. Repeat step 2 >> =3D> user-error: No matches for: a >>=20 >> dired-do-find-regexp calls xref-matches-in-files and that calls grep, >> and that's where the failure happens, so strictly speaking this isn't an >> Emacs bug, but it is a problem for users of dired-do-find-regexp >> (dired-do-search and occur, for example, don't have this problem). One >> workaround is to add the -a option to the grep invocation in >> xref-matches-in-files; then the search succeeds and the *xref* buffer >> displays 'a\344'. But this doesn't work if '=C3=A4' is the search term. > > Does it work for =C3=A4 if you say > > C-x RET c latin-1 RET A =C3=A4 RET > > ? Yes (with -a added to the grep invocation, but not without it). And then with either 'a' or '=C3=A4' as the search term, *xref* displays 'a=C3= =A4'. So this seems to be the best workaround, though inconvenient for frequent uses (but easy enough to wrap a lambda around and bind it to a key). Do you then agree to adding -a to the grep invocation in xref-matches-in-files? Or could that have undesirable consequences? Steve Berman