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From: Lars Ingebrigtsen <larsi@HIDDEN>
To: =?utf-8?B?RnLDqWTDqXJpYw==?= Baldit <frederic.baldit@HIDDEN>
Subject: Re: bug#46590: 27.1.91; abnormal whitespace-mode behavior
References: <20210217150614.1eaecfdd@HIDDEN>
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Content preview: Frédéric Baldit <frederic.baldit@HIDDEN> writes: > 6) TAB
TAB TAB TAB: point should be at line 2, column 18, vertically > aligned with
fourth word of line 1 («text»), but it is at column 26: > that's the bug.
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Fr=C3=A9d=C3=A9ric Baldit <frederic.baldit@HIDDEN> writes:
> 6) TAB TAB TAB TAB: point should be at line 2, column 18, vertically
> aligned with fourth word of line 1 (=C2=ABtext=C2=BB), but it is at colum=
n 26:
> that's the bug.
This is a duplicate of bug#18441 (and others), so I've now merged the
reports.
--=20
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
bug-gnu-emacs@HIDDEN:bug#46590; Package emacs.
Full text available.Received: (at 46590) by debbugs.gnu.org; 23 Feb 2021 15:54:37 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Feb 23 10:54:37 2021 Received: from localhost ([127.0.0.1]:60258 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1lEa11-0003Cm-QX for submit <at> debbugs.gnu.org; Tue, 23 Feb 2021 10:54:37 -0500 Received: from eggs.gnu.org ([209.51.188.92]:40892) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1lEa10-0003CY-Gn for 46590 <at> debbugs.gnu.org; Tue, 23 Feb 2021 10:54:22 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]:47155) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1lEa0v-0007ED-7G; Tue, 23 Feb 2021 10:54:17 -0500 Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:3523 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1lEa0u-0005HF-Gv; Tue, 23 Feb 2021 10:54:17 -0500 Date: Tue, 23 Feb 2021 17:54:07 +0200 Message-Id: <838s7evkyo.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: =?utf-8?B?RnLDqWTDqXJpYw==?= Baldit <frederic.baldit@HIDDEN> In-Reply-To: <20210223150547.45f58520@HIDDEN> (message from =?utf-8?B?RnLDqWTDqXJpYw==?= Baldit on Tue, 23 Feb 2021 15:05:47 +0100) Subject: Re: bug#46590: 27.1.91; abnormal whitespace-mode behavior References: <20210217150614.1eaecfdd@HIDDEN> <837dn3143m.fsf@HIDDEN> <20210223150547.45f58520@HIDDEN> MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 46590 Cc: 46590 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) > Date: Tue, 23 Feb 2021 15:05:47 +0100 > From: Frédéric Baldit <frederic.baldit@HIDDEN> > Cc: 46590 <at> debbugs.gnu.org > > I just began reading whitespace.el, in particular the use of the > display table, which seems to be crucial here. But I'm just > learning emacs (and emacs lisp), so there could be a long way > before I can truly (and deeply) understand whitespace.el code and see > how to fix the bug. I don't think this can be fixed without a complete redesign how a TAB is displayed under this mode. display-tables simply cannot deal with such situations. But I didn't think about this too long, so maybe I'm missing something. > I asked myself: should I contact the maintainer of whitespace.el > (Vinicius Jose Latorre) to get some help? I don't know, but what do you have to lose?
bug-gnu-emacs@HIDDEN:bug#46590; Package emacs.
Full text available.Received: (at 46590) by debbugs.gnu.org; 23 Feb 2021 14:06:00 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Feb 23 09:05:59 2021 Received: from localhost ([127.0.0.1]:58570 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1lEYK7-0004P9-L0 for submit <at> debbugs.gnu.org; Tue, 23 Feb 2021 09:05:59 -0500 Received: from smtp3-g21.free.fr ([212.27.42.3]:25169) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <frederic.baldit@HIDDEN>) id 1lEYK5-0004P0-4C for 46590 <at> debbugs.gnu.org; Tue, 23 Feb 2021 09:05:57 -0500 Received: from Cornafion.lan (unknown [IPv6:2a01:cb14:4d4:ee00:f88b:12fe:4bcc:8956]) (Authenticated sender: frederic.baldit@HIDDEN) by smtp3-g21.free.fr (Postfix) with ESMTPA id D905C13F866; Tue, 23 Feb 2021 15:05:52 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=free.fr; s=smtp-20201208; t=1614089156; bh=r+AilELWXciWS+FhzlhUPlL0Zss8vSSCmBSs7ypnbS0=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=tm0EfSsG22VWspVJzmJCG0wPfTEHnMklIFQ23sXdt9vsBQd5sMqrAsfVT0wVCuqTz pnLsy9eEs9roWg8B+7J/pxWnsqsra7lIZ1ORvjWqysGRvLvI8/pe2kLJUKhZni2Mb3 hsn49/ltWWdIPKFC+syISZZeflK7826X96FCC6lJWAFULdTzC37oAdziuqQSKo5Xck kbb5foKHlBktjklxzoWQ2CgyXkae3vbFZGgrQv+a+k8WZHuFD4Lq/R5COnACPxUJgQ GHw6ReOXbp9+CQqPL1Jpi+Td+xaDq+UK+AlmK4QNBZpsbEenhferNb+kmhWvy6yoOw XFIuDb/E/2wvQ== Date: Tue, 23 Feb 2021 15:05:47 +0100 From: =?UTF-8?B?RnLDqWTDqXJpYw==?= Baldit <frederic.baldit@HIDDEN> To: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#46590: 27.1.91; abnormal whitespace-mode behavior Message-ID: <20210223150547.45f58520@HIDDEN> In-Reply-To: <837dn3143m.fsf@HIDDEN> References: <20210217150614.1eaecfdd@HIDDEN> <837dn3143m.fsf@HIDDEN> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 46590 Cc: 46590 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Thank you for your message and for pointing out the warning in whitespace.el code. Now I can better understand what is triggering this bad display. For example, the following text yields the same result: ........First line of text in emacs ....... (eight spaces at beginning of line 1, 7 at beginning of line 2, point at end of line 2). Then typing TAB inserts 1 TAB symbol (character '=C2=BB', \xBB) followed by eight grouped spaces (1 TAB), whereas only one '=C2=BB' should be indeed be displayed. I'm quite surprised by this, because to me it's not so marginal and unused. Also whitespace.el is now builtin with emacs. And emacs is such a long-time proven editor, I think it can be quite disappointing to see such a =C2=ABflat=C2=BB (I mean trivial) bug in it. I just began reading whitespace.el, in particular the use of the display table, which seems to be crucial here. But I'm just learning emacs (and emacs lisp), so there could be a long way before I can truly (and deeply) understand whitespace.el code and see how to fix the bug. I asked myself: should I contact the maintainer of whitespace.el (Vinicius Jose Latorre) to get some help? -- Fr=C3=A9d=C3=A9ric Baldit Le sam. 20 f=C3=A9vr. 2021 =C3=A0 11:27:25 +0200 Eli Zaretskii <eliz@HIDDEN> a =C3=A9crit: > > Date: Wed, 17 Feb 2021 15:06:14 +0100 > > From: Fr=C3=A9d=C3=A9ric Baldit <frederic.baldit@HIDDEN> > >=20 > > emacs -Q test.txt & > >=20 > > 2) M-x whitespace-mode RET > >=20 > > 3) type the following text (=C2=AB.=C2=BB for spacebar key): > >=20 > > =C2=AB....First line of text in emacs=C2=BB, then type RET > >=20 > > 4) DEL DEL to suppress backward two spaces on line 2, then type text > > =C2=ABSecond one=C2=BB > >=20 > > 5) M-2 M-b > >=20 > > 6) TAB TAB TAB TAB: point should be at line 2, column 18, vertically > > aligned with fourth word of line 1 (=C2=ABtext=C2=BB), but it is at col= umn 26: > > that's the bug. =20 >=20 > It's a known misfeature of whitespace-mode. There's a comment in > whitespace.el to that effect: >=20 > ;; WARNING: the mapping below has a problem. > ;; When a TAB occupies exactly one column, it will display the > ;; character ?\xBB at that column followed by a TAB which goes to > ;; the next TAB column. > ;; If this is a problem for you, please, comment the line below. > (tab-mark ?\t [?=C2=BB ?\t] [?\\ ?\t]) ; tab - right > guillemet >=20 > You could customize whitespace-display-mappings to remove tab-mark > from it, if you want to avoid this issue. >=20 > > Rq1: what is curious (to me) is that deactivating whitespace-mode > > removes abnormally inserted tab character (8 spaces) and everything > > is OK. =20 >=20 > That's because disabling whitespace-mode deactivates the display-table > mappings, which include the above mapping. >=20 > > Rq2: I noted that with a different text, this behavior of > > whitespace-mode disappears. For example, if one uses the following > > first line of text: > >=20 > > =C2=AB....This.is.a.first.line.of.text.with.a.few.words=C2=BB, > >=20 > > then the result of typing TAB multiple times is as expected, with or > > without whitespace-mode activated! =20 >=20 > Most probably because the "TAB occupies exactly one column" condition > doesn't happen there. >=20 > Thanks.
bug-gnu-emacs@HIDDEN:bug#46590; Package emacs.
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Date: Sat, 20 Feb 2021 11:27:25 +0200
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From: Eli Zaretskii <eliz@HIDDEN>
To: =?utf-8?B?RnLDqWTDqXJpYw==?= Baldit <frederic.baldit@HIDDEN>
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Baldit on Wed, 17 Feb 2021 15:06:14 +0100)
Subject: Re: bug#46590: 27.1.91; abnormal whitespace-mode behavior
References: <20210217150614.1eaecfdd@HIDDEN>
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> Date: Wed, 17 Feb 2021 15:06:14 +0100
> From: Frédéric Baldit <frederic.baldit@HIDDEN>
>
> emacs -Q test.txt &
>
> 2) M-x whitespace-mode RET
>
> 3) type the following text («.» for spacebar key):
>
> «....First line of text in emacs», then type RET
>
> 4) DEL DEL to suppress backward two spaces on line 2, then type text
> «Second one»
>
> 5) M-2 M-b
>
> 6) TAB TAB TAB TAB: point should be at line 2, column 18, vertically
> aligned with fourth word of line 1 («text»), but it is at column 26:
> that's the bug.
It's a known misfeature of whitespace-mode. There's a comment in
whitespace.el to that effect:
;; WARNING: the mapping below has a problem.
;; When a TAB occupies exactly one column, it will display the
;; character ?\xBB at that column followed by a TAB which goes to
;; the next TAB column.
;; If this is a problem for you, please, comment the line below.
(tab-mark ?\t [?» ?\t] [?\\ ?\t]) ; tab - right guillemet
You could customize whitespace-display-mappings to remove tab-mark
from it, if you want to avoid this issue.
> Rq1: what is curious (to me) is that deactivating whitespace-mode
> removes abnormally inserted tab character (8 spaces) and everything is
> OK.
That's because disabling whitespace-mode deactivates the display-table
mappings, which include the above mapping.
> Rq2: I noted that with a different text, this behavior of
> whitespace-mode disappears. For example, if one uses the following first
> line of text:
>
> «....This.is.a.first.line.of.text.with.a.few.words»,
>
> then the result of typing TAB multiple times is as expected, with or
> without whitespace-mode activated!
Most probably because the "TAB occupies exactly one column" condition
doesn't happen there.
Thanks.
bug-gnu-emacs@HIDDEN:bug#46590; Package emacs.
Full text available.Received: (at 46590) by debbugs.gnu.org; 17 Feb 2021 18:12:53 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Feb 17 13:12:53 2021 Received: from localhost ([127.0.0.1]:44871 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1lCRJl-0000O0-17 for submit <at> debbugs.gnu.org; Wed, 17 Feb 2021 13:12:53 -0500 Received: from mail-lf1-f48.google.com ([209.85.167.48]:42565) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <bhavin7392@HIDDEN>) id 1lCRJi-0000Nm-OK for 46590 <at> debbugs.gnu.org; Wed, 17 Feb 2021 13:12:51 -0500 Received: by mail-lf1-f48.google.com with SMTP id z11so23131204lfb.9 for <46590 <at> debbugs.gnu.org>; Wed, 17 Feb 2021 10:12:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=yWsJYqrOsnZpi8K2C9a4hQtvhi6iaG/nvCbyz08qjtE=; b=qKQf8zWek/CpyJ1ImiDvCVaKrpWAducq7uc8X06sEa4fd1irvwKP2CXZ4Ad0MS0B+V rvNlTTy05vLclo21yapW8JJxGkU2YHxOKG40paIQcyms6pwtrYtF3oZgXFgrQwlSUPPH zlJ+TLea4vfsZ9tAczWb0EzyOahJPcWo9S9bQcYvYMIbVmCERU4MBZfKXTB4Oi1TFvTC bvIoH9qfCfjsRMOdr27ipAVomDAu+1w22qCATA7I00tt5Y8nvNFj6Me1SNn5VF+ZBgk2 Q+9oIQDilDFi5aT8Q5iJPcffdDIySOCvcNQWTuR97KU9QAGUSc/FP7Vgoik6XJ2YQ7Il KO4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=yWsJYqrOsnZpi8K2C9a4hQtvhi6iaG/nvCbyz08qjtE=; b=kWOa5QqiYh1pC6/FU7goGMlE+7Z3hFrEtzRJ1O7zoaPxrwdQC+Hy3ncPeSEkjTGosd 39WP9FO1R17vh/G5/F4/HAfhTdzFTYAA4QUQ8mAqWm9b1dnsnhD39MnkEbJHpN9rU6WE N/AGOFXOo2+xsf/VilvaaovYwyVmSmyV5nW/Jo04DSkEUUsSNfqqtPeI2qjGorpA7TMp DtN0A1he9TNokG3+aXFKRZ5eZSQz85cxE/oILrgaSslg7waqhGdcgMPo6ipZKB4ST4bj Rs5NtUylONHLPnemahDN5lL2XXxvxBlz6tlvWgcotk6VxZtWKlsgoPCQycaE+fBr4obl A9YA== X-Gm-Message-State: AOAM532JvGQNQUQGygx3x1yLqKNJT91mJJkuAb1KfhzSKT2tMPCjsy6s qyKRXLksx2iNLej+RyhjfK4xBSrS203lqiTHIa0= X-Google-Smtp-Source: ABdhPJw+laWj8fPViWhfOfe8skxPPNIT23lfcO3k+FNasg3mK+n3MFWmmQBvtoOpbDkxDE7WasE+oWWX/VjvXLl6Xv8= X-Received: by 2002:ac2:555b:: with SMTP id l27mr88457lfk.173.1613585564733; Wed, 17 Feb 2021 10:12:44 -0800 (PST) MIME-Version: 1.0 References: <20210217150614.1eaecfdd@HIDDEN> In-Reply-To: <20210217150614.1eaecfdd@HIDDEN> From: Bhavin Gandhi <bhavin7392@HIDDEN> Date: Wed, 17 Feb 2021 23:42:08 +0530 Message-ID: <CAOn=hbezApEfKkvRMD0RyuOWYBYLmHHHm8gtBmghC-JKn2kyiw@HIDDEN> Subject: Re: bug#46590: 27.1.91; abnormal whitespace-mode behavior To: =?UTF-8?B?RnLDqWTDqXJpYyBCYWxkaXQ=?= <frederic.baldit@HIDDEN> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.2 (/) X-Debbugs-Envelope-To: 46590 Cc: 46590 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -0.8 (/) On Wed, 17 Feb 2021 at 20:55, Fr=C3=A9d=C3=A9ric Baldit <frederic.baldit@fr= ee.fr> wrote: > > 3) type the following text (=C2=AB.=C2=BB for spacebar key): > I was able to reproduce the behavior by following the steps above, thought = of replying to clarify that I used SPC at the places where the given text has =C2=AB or =C2=BB character. --=20 Warm Regards, Bhavin Gandhi (bhavin192) | https://geeksocket.in
bug-gnu-emacs@HIDDEN:bug#46590; Package emacs.
Full text available.Received: (at submit) by debbugs.gnu.org; 17 Feb 2021 15:24:22 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Feb 17 10:24:22 2021 Received: from localhost ([127.0.0.1]:44688 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1lCOgg-0004fL-5w for submit <at> debbugs.gnu.org; Wed, 17 Feb 2021 10:24:22 -0500 Received: from lists.gnu.org ([209.51.188.17]:46910) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <frederic.baldit@HIDDEN>) id 1lCNTL-0002Lz-9U for submit <at> debbugs.gnu.org; Wed, 17 Feb 2021 09:06:31 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:52026) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <frederic.baldit@HIDDEN>) id 1lCNTK-0005hs-U4 for bug-gnu-emacs@HIDDEN; Wed, 17 Feb 2021 09:06:30 -0500 Received: from smtp6-g21.free.fr ([2a01:e0c:1:1599::15]:48156) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <frederic.baldit@HIDDEN>) id 1lCNTI-0005ao-4P for bug-gnu-emacs@HIDDEN; Wed, 17 Feb 2021 09:06:30 -0500 Received: from Cornafion.lan (unknown [IPv6:2a01:cb14:4d4:ee00:756f:da9e:3d15:b87e]) (Authenticated sender: frederic.baldit@HIDDEN) by smtp6-g21.free.fr (Postfix) with ESMTPA id 8C06C780344 for <bug-gnu-emacs@HIDDEN>; Wed, 17 Feb 2021 15:06:22 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=free.fr; s=smtp-20201208; t=1613570783; bh=GxT3RLz7PDjiEadlKwh6k4fjHpxBHyowC/2GYPvPsiI=; h=Date:From:To:Subject:From; b=M6197aFqDBnqCSFd+PM2BvK506Pycg0VaGG4fIazWThJQjk8yshB0jfHpp/Em7mfC e7i1mZPhdK12bSd6a+gHIT0ZnFEqyYHHgFvt6ANQbnjbobD1LxeGz14CUbgNBTr2Xy aBQfXkNKq7xe9IIrIoXjfwGqVWVKFQUHAuRHsHR0tayLXyzfrg3sgeGPXDcdd/2smB OcRcTpU9c/Lcnn/qBCiVUUr9BP2EatkXzcHu+CALil9ZJ7XaSrEO3YImu2mtOOPu71 dGEPe5YU/8+/fu6edurHXCHEitMvQZ86VIg8RFXMKpMSURqkiNDO4C1QD2gFwW5kiw vAWGUFCy5YnGA== Date: Wed, 17 Feb 2021 15:06:14 +0100 From: =?UTF-8?B?RnLDqWTDqXJpYw==?= Baldit <frederic.baldit@HIDDEN> To: bug-gnu-emacs@HIDDEN Subject: 27.1.91; abnormal whitespace-mode behavior Message-ID: <20210217150614.1eaecfdd@HIDDEN> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Received-SPF: none client-ip=2a01:e0c:1:1599::15; envelope-from=frederic.baldit@HIDDEN; helo=smtp6-g21.free.fr X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -0.5 (/) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Wed, 17 Feb 2021 10:24:20 -0500 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) --text follows this line-- Recipe to reproduce the bug: 1) I'm using emacs version 27.1.91 built from git sources in my /home directory (same bug is experimented with emacs version 26.1 installed from debian stable package). Command used to run emacs: emacs -Q test.txt & 2) M-x whitespace-mode RET 3) type the following text (=C2=AB.=C2=BB for spacebar key): =C2=AB....First line of text in emacs=C2=BB, then type RET 4) DEL DEL to suppress backward two spaces on line 2, then type text =C2=ABSecond one=C2=BB 5) M-2 M-b 6) TAB TAB TAB TAB: point should be at line 2, column 18, vertically aligned with fourth word of line 1 (=C2=ABtext=C2=BB), but it is at column = 26: that's the bug. Rq1: what is curious (to me) is that deactivating whitespace-mode removes abnormally inserted tab character (8 spaces) and everything is OK. Rq2: I noted that with a different text, this behavior of whitespace-mode disappears. For example, if one uses the following first line of text: =C2=AB....This.is.a.first.line.of.text.with.a.few.words=C2=BB, then the result of typing TAB multiple times is as expected, with or without whitespace-mode activated! Rq3: as I'm not an emacs expert, I first posted on help-gnu-emacs list in order to see if someone could explain me what I was missing: https://lists.gnu.org/archive/html/help-gnu-emacs/2021-02/msg00321.html Nobody explained me why I see this behavior (of whitespace-mode), thus I came to the conclusion it might be a bug (both answers are from persons using emacs 28.0.50). I must say that I followed as precisely as I could the advices found to submit a bug, in particular I read and followed =C2=AB52-Reporting bugs=C2=BB of emacs manual. --end of bug description-- In GNU Emacs 27.1.91 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.5) of 2021-02-04 built on Cornafion Repository revision: 89f1634afcca318def07151424a21b81c70acd76 Repository branch: emacs-27 Windowing system distributor 'The X.Org Foundation', version 11.0.12004000 System Description: Debian GNU/Linux 10 (buster) Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. Whitespace mode enabled in current buffer You can run the command =E2=80=98whitespace-mode=E2=80=99 with M-x whit-m R= ET Whitespace mode enabled in current buffer Auto-saving...done Auto-saving...done Making completion list... Configured using: 'configure --prefix=3D/home/fred/emacs-03022021/' Configured features: XPM JPEG TIFF GIF PNG RSVG SOUND GPM DBUS GSETTINGS GLIB NOTIFY INOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS LIBSYSTEMD PDUMPER LCMS2 GMP Important settings: value of $LC_MONETARY: fr_FR.UTF-8 value of $LC_NUMERIC: fr_FR.UTF-8 value of $LC_TIME: fr_FR.UTF-8 value of $LANG: fr_FR.UTF-8 locale-coding-system: utf-8-unix Major mode: Text Minor modes in effect: whitespace-mode: t tooltip-mode: t global-eldoc-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs format-spec rfc822 mml easymenu mml-sec password-cache epa derived epg epg-config gnus-util rmail rmail-loaddefs text-property-search seq byte-opt gv bytecomp byte-compile cconv mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils time-date subr-x cl-loaddefs cl-lib disp-table whitespace tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode elisp-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray cl-preloaded nadvice loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote threads dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting move-toolbar gtk x-toolkit x multi-tty make-network-process emacs) Memory information: ((conses 16 49999 5008) (symbols 48 6166 1) (strings 32 16282 1605) (string-bytes 1 538103) (vectors 16 10378) (vector-slots 8 138289 8918) (floats 8 20 41) (intervals 56 535 0) (buffers 1000 14)) -- Fr=C3=A9d=C3=A9ric Baldit
Frédéric Baldit <frederic.baldit@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#46590; Package emacs.
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