From unknown Wed Jun 18 23:15:44 2025 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.509 (Entity 5.509) Content-Type: text/plain; charset=utf-8 From: bug#6743 <6743@debbugs.gnu.org> To: bug#6743 <6743@debbugs.gnu.org> Subject: Status: Backslash regexp in Elisp manual Reply-To: bug#6743 <6743@debbugs.gnu.org> Date: Thu, 19 Jun 2025 06:15:44 +0000 retitle 6743 Backslash regexp in Elisp manual reassign 6743 emacs submitter 6743 Arni Magnusson severity 6743 normal thanks From debbugs-submit-bounces@debbugs.gnu.org Tue Jul 27 19:32:52 2010 Received: (at submit) by debbugs.gnu.org; 27 Jul 2010 23:32:52 +0000 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Odtdk-0001tw-1s for submit@debbugs.gnu.org; Tue, 27 Jul 2010 19:32:52 -0400 Received: from mail.gnu.org ([199.232.76.166] helo=mx10.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Odtdf-0001to-9z for submit@debbugs.gnu.org; Tue, 27 Jul 2010 19:32:51 -0400 Received: from lists.gnu.org ([199.232.76.165]:34489) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1OdtdQ-0006g7-CU for submit@debbugs.gnu.org; Tue, 27 Jul 2010 19:32:32 -0400 Received: from [140.186.70.92] (port=48848 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OdtdI-0004BT-UE for bug-gnu-emacs@gnu.org; Tue, 27 Jul 2010 19:32:31 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,T_RP_MATCHES_RCVD autolearn=unavailable version=3.3.1 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1Odtcm-0008Qy-0q for bug-gnu-emacs@gnu.org; Tue, 27 Jul 2010 19:31:52 -0400 Received: from hafgarpur.hafro.is ([130.208.64.48]:42415) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Odtcl-0008Ph-G8 for bug-gnu-emacs@gnu.org; Tue, 27 Jul 2010 19:31:51 -0400 X-Virus-Scanned: amavisd-new at hafro.is Received: from hafstormur.hafro.is (hafstormur [130.208.66.52]) by hafgarpur.hafro.is (8.14.2/8.14.2/hafro-2.46) with ESMTP id o6RNVf3E023034 for ; Tue, 27 Jul 2010 23:31:42 GMT Received: from hafstormur.hafro.is (localhost [127.0.0.1]) by hafstormur.hafro.is (8.14.3/8.14.3/hafro-1.6) with ESMTP id o6RNVctV003213 for ; Tue, 27 Jul 2010 23:31:39 GMT Received: from localhost (arnima@localhost) by hafstormur.hafro.is (8.14.3/8.14.3/hafro-0.3) with ESMTP id o6RNVZmC003208 for ; Tue, 27 Jul 2010 23:31:36 GMT X-Authentication-Warning: hafstormur.hafro.is: arnima owned process doing -bs Date: Tue, 27 Jul 2010 23:31:30 +0000 (UTC) From: Arni Magnusson To: bug-gnu-emacs@gnu.org Subject: Backslash regexp in Elisp manual Message-ID: User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII X-detected-operating-system: by eggs.gnu.org: Solaris 10 (beta) X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) X-Spam-Score: -4.5 (----) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: debbugs-submit-bounces@debbugs.gnu.org Errors-To: debbugs-submit-bounces@debbugs.gnu.org X-Spam-Score: -5.3 (-----) The current version (23.2) of the Elisp manual (http://www.gnu.org/software/emacs/manual/texi/elisp.texi.tar.gz) has a minor typo in Section 34.3.1.1 Special Characters in Regular Expressions (searching.texi) where Therefore, the read syntax for a regular expression matching @samp{\} is @code{"\\\\"}. should be Therefore, the read syntax for a regular expression matching @samp{\\} is @code{"\\\\"}. Arni From debbugs-submit-bounces@debbugs.gnu.org Tue Jul 27 20:25:48 2010 Received: (at 6743) by debbugs.gnu.org; 28 Jul 2010 00:25:49 +0000 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OduSy-0002IP-67 for submit@debbugs.gnu.org; Tue, 27 Jul 2010 20:25:48 -0400 Received: from mail-bw0-f44.google.com ([209.85.214.44]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OduSw-0002IE-W7 for 6743@debbugs.gnu.org; Tue, 27 Jul 2010 20:25:47 -0400 Received: by bwz7 with SMTP id 7so3996725bwz.3 for <6743@debbugs.gnu.org>; Tue, 27 Jul 2010 17:25:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:mime-version:received:in-reply-to :references:from:date:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=MfkZCAPBFqtHE3tbAyhIYhS3pZel4SpBq1kpXkO1oOM=; b=IICGuzQ1qTH3mLld25BdRy470EzqUkke678+7dqBIqWp8yPn6duf1EGHIUdpx4q+Rl orppIqCmvP8V4KLqJfV+j+JgK7Zdg8YZglL1uYieWqkqQKI7fqNzq9y+VpT9pt3MsUVy n61hLPZuiem+sp1eLOCDC0BRVGTD9H8X6Qgps= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; b=HlQj8WHOAM1VYhLRM/IleAdfzlOWYVS4lVcJCHFpBfY+l1gH6IKheT9j+kJOblkTfn gwQF3bNg5l5eb8y+VifiG96j6kLK5WiRWYHEgwtoHeIYtOO4BsSzu6Xp3SYw4EPKOvfs OYtqoGoe+1hT0DGGvM+XAydPtb/PxBkRP0EIU= Received: by 10.204.127.75 with SMTP id f11mr7425090bks.85.1280276755207; Tue, 27 Jul 2010 17:25:55 -0700 (PDT) MIME-Version: 1.0 Received: by 10.204.180.136 with HTTP; Tue, 27 Jul 2010 17:25:35 -0700 (PDT) In-Reply-To: References: From: Juanma Barranquero Date: Wed, 28 Jul 2010 02:25:35 +0200 Message-ID: Subject: Re: bug#6743: Backslash regexp in Elisp manual To: Arni Magnusson Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.7 (--) X-Debbugs-Envelope-To: 6743 Cc: 6743@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: debbugs-submit-bounces@debbugs.gnu.org Errors-To: debbugs-submit-bounces@debbugs.gnu.org X-Spam-Score: -2.7 (--) On Wed, Jul 28, 2010 at 01:31, Arni Magnusson wrote: > =C2=A0Therefore, the read syntax for a regular expression matching > =C2=A0@samp{\} is @code{"\\\\"}. > > should be > > =C2=A0Therefore, the read syntax for a regular expression matching > =C2=A0@samp{\\} is @code{"\\\\"}. Why do you think so? The section is talking about the read syntax. To match \, you need a regexp with \\, and to write \\ in a string, you need \\\\. Try emacs -Q \ M-: (looking-at "\\") =3D> (invalid-regexp "Trailing backslash") q M-: (looking-at "\\\\") =3D> t Note that \\\\ is matching a single \ on the buffer, not \\ =C2=A0 =C2=A0 Juanma From debbugs-submit-bounces@debbugs.gnu.org Tue Jul 27 22:54:43 2010 Received: (at 6743) by debbugs.gnu.org; 28 Jul 2010 02:54:44 +0000 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Odwn5-0003J1-Jw for submit@debbugs.gnu.org; Tue, 27 Jul 2010 22:54:43 -0400 Received: from hafgarpur.hafro.is ([130.208.64.48]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Odwn2-0003Iv-9k for 6743@debbugs.gnu.org; Tue, 27 Jul 2010 22:54:41 -0400 X-Virus-Scanned: amavisd-new at hafro.is Received: from hafstormur.hafro.is (hafstormur [130.208.66.52]) by hafgarpur.hafro.is (8.14.2/8.14.2/hafro-2.46) with ESMTP id o6S2sk4w024999; Wed, 28 Jul 2010 02:54:47 GMT Received: from hafstormur.hafro.is (localhost [127.0.0.1]) by hafstormur.hafro.is (8.14.3/8.14.3/hafro-1.6) with ESMTP id o6S2skEE004352; Wed, 28 Jul 2010 02:54:46 GMT Received: from localhost (arnima@localhost) by hafstormur.hafro.is (8.14.3/8.14.3/hafro-0.3) with ESMTP id o6S2skXg004347; Wed, 28 Jul 2010 02:54:46 GMT X-Authentication-Warning: hafstormur.hafro.is: arnima owned process doing -bs Date: Wed, 28 Jul 2010 02:54:46 +0000 (GMT) From: Arni Magnusson To: Juanma Barranquero Subject: Re: bug#6743: Backslash regexp in Elisp manual In-Reply-To: Message-ID: References: User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-796773310-139236191-1280284696=:4243" Content-ID: X-Spam-Score: -3.5 (---) X-Debbugs-Envelope-To: 6743 Cc: 6743@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: debbugs-submit-bounces@debbugs.gnu.org Errors-To: debbugs-submit-bounces@debbugs.gnu.org X-Spam-Score: -3.4 (---) This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---796773310-139236191-1280284696=:4243 Content-Type: TEXT/PLAIN; CHARSET=ISO-8859-1; FORMAT=flowed Content-ID: Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by hafgarpur.hafro.is id o6S2sk4w024999 Sorry, my mistake. The sentence is correct in the manual. Arni On Wed, 28 Jul 2010, Juanma Barranquero wrote: > On Wed, Jul 28, 2010 at 01:31, Arni Magnusson wrote: > >> =A0Therefore, the read syntax for a regular expression matching >> =A0@samp{\} is @code{"\\\\"}. >> >> should be >> >> =A0Therefore, the read syntax for a regular expression matching >> =A0@samp{\\} is @code{"\\\\"}. > > Why do you think so? > > The section is talking about the read syntax. To match \, you need a=20 > regexp with \\, and to write \\ in a string, you need \\\\. > > Try > > emacs -Q > \ > M-: (looking-at "\\") =3D> (invalid-regexp "Trailing backslash= ") > q > M-: (looking-at "\\\\") =3D> t > > Note that \\\\ is matching a single \ on the buffer, not \\ > > =A0 =A0 Juanma > ---796773310-139236191-1280284696=:4243-- From debbugs-submit-bounces@debbugs.gnu.org Tue Jul 27 22:58:30 2010 Received: (at 6743-done) by debbugs.gnu.org; 28 Jul 2010 02:58:30 +0000 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Odwqj-0003Kh-V1 for submit@debbugs.gnu.org; Tue, 27 Jul 2010 22:58:30 -0400 Received: from mail-bw0-f44.google.com ([209.85.214.44]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Odwqi-0003Kc-Nd for 6743-done@debbugs.gnu.org; Tue, 27 Jul 2010 22:58:29 -0400 Received: by bwz7 with SMTP id 7so4034986bwz.3 for <6743-done@debbugs.gnu.org>; Tue, 27 Jul 2010 19:58:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:mime-version:received:in-reply-to :references:from:date:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=HpUrm2amyPbH/jYOAxPgH6MOQ9BFCJVTrr3VV2GC57k=; b=RoQjwO5i7iprdBO9989K9mRx07mualAjRXHioZA0Pqn4PcWPgCfNOE4lyJr+Eddvth PGPuzfltCk6+jC0c/s6DwfabTDfdww022TQ1OSYNW6djQ2FBj24B9ctIukfXpAp9CMf4 lPuQEHhYSKkoDe9MlRxz3OlJ8dkJGXfYm/SkU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; b=Ttrelu4Gp5QkNBnmIP+y2gb5FPE2h9PN1cyuwvOHavZo54Q2M484Hg83jMLl79OVZN p/QVTVopo/niw01zMs/QtopsrLYRpiZ9WzdLnjAL54WfYSIbYZjJqj+XLskC9SFBLqU3 LmMpg9IoWxPkAQV9DEtjGBovABOKaxkNRMXAo= Received: by 10.204.21.135 with SMTP id j7mr6964298bkb.198.1280285917154; Tue, 27 Jul 2010 19:58:37 -0700 (PDT) MIME-Version: 1.0 Received: by 10.204.180.136 with HTTP; Tue, 27 Jul 2010 19:58:17 -0700 (PDT) In-Reply-To: References: From: Juanma Barranquero Date: Wed, 28 Jul 2010 04:58:17 +0200 Message-ID: Subject: Re: bug#6743: Backslash regexp in Elisp manual To: Arni Magnusson Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.7 (--) X-Debbugs-Envelope-To: 6743-done Cc: 6743-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: debbugs-submit-bounces@debbugs.gnu.org Errors-To: debbugs-submit-bounces@debbugs.gnu.org X-Spam-Score: -2.7 (--) > Sorry, my mistake. The sentence is correct in the manual. Thanks for the report anyway. =C2=A0 =C2=A0 Juanma From unknown Wed Jun 18 23:15:44 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Wed, 25 Aug 2010 11:24:04 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator