GNU bug report logs - #23354
25.1.50; Unicode literals aren't handled correctly by some commands

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Lars Magne Ingebrigtsen <larsi <at> gnus.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.1.50; Unicode literals aren't handled correctly by some commands
Date: Sun, 24 Apr 2016 14:16:33 +0200

If you put point after the following expression and hit `C-x C-e':

?\N{HEAVY CHECK MARK}

you'll get an error saying "(void-variable MARK})".  And in an Emacs
Lisp buffer, using forward/backward sexp commands, they do not skip past
the entire expression.




In GNU Emacs 25.1.50.35 (x86_64-unknown-linux-gnu, GTK+ Version 3.4.2)
 of 2016-04-24 built on stories
Repository revision: a28873ce734b3618b0e8f6892e65db24d2f18da8
Windowing system distributor 'The X.Org Foundation', version 11.0.11204000
System Description:	Debian GNU/Linux 7.9 (wheezy)

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GSETTINGS NOTIFY GNUTLS
LIBXML2 FREETYPE LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11


-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #8 received at 23354 <at> debbugs.gnu.org (full text, mbox):

From: Philipp Stephani <p.stephani2 <at> gmail.com>
To: Lars Magne Ingebrigtsen <larsi <at> gnus.org>, 23354 <at> debbugs.gnu.org
Subject: Re: bug#23354: 25.1.50; Unicode literals aren't handled correctly by
 some commands
Date: Sun, 01 May 2016 12:59:37 +0000

[Message part 1 (text/plain, inline)]

Lars Magne Ingebrigtsen <larsi <at> gnus.org> schrieb am So., 24. Apr. 2016 um
14:17 Uhr:

>
> If you put point after the following expression and hit `C-x C-e':
>
> ?\N{HEAVY CHECK MARK}
>
> you'll get an error saying "(void-variable MARK})".  And in an Emacs
> Lisp buffer, using forward/backward sexp commands, they do not skip past
> the entire expression.
>
>
Thanks, I've attached a patch that should fix eval-print-last-expr. This
doesn't fix backward-sexp, because I think that would be much harder.

[Message part 2 (text/html, inline)]

[0001-Detect-named-character-literals.patch (application/octet-stream, attachment)]

Message #11 received at 23354 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Philipp Stephani <p.stephani2 <at> gmail.com>
Cc: 23354 <at> debbugs.gnu.org
Subject: Re: bug#23354: 25.1.50;
 Unicode literals aren't handled correctly by some commands
Date: Mon, 02 May 2016 23:58:54 +0200

Philipp Stephani <p.stephani2 <at> gmail.com> writes:

> Thanks, I've attached a patch that should fix eval-print-last-expr. This doesn't
> fix backward-sexp, because I think that would be much harder. 

Thanks; applied.  I hope somebody else can fix backward-sexp and
friends.  :-)

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #14 received at 23354 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Philipp Stephani <p.stephani2 <at> gmail.com>
Cc: 23354 <at> debbugs.gnu.org
Subject: Re: bug#23354: 25.1.50; Unicode literals aren't handled correctly
 by some commands
Date: Tue, 04 Aug 2020 11:37:29 +0200

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> Philipp Stephani <p.stephani2 <at> gmail.com> writes:
>
>> Thanks, I've attached a patch that should fix
>> eval-print-last-expr. This doesn't
>> fix backward-sexp, because I think that would be much harder. 
>
> Thanks; applied.  I hope somebody else can fix backward-sexp and
> friends.  :-)

I just checked whether things has changed -- and, no, backward-sexp and
friends still do the wrong thing on Unicode literals like

?\N{HEAVY CHECK MARK}

in Emacs Lisp buffers.  In particular, backward-sexp after the final "}"
skips to the start of "MARK", and forward-sexp at the start skips to the
end of "HEAVY".

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #19 received at 23354 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Philipp Stephani <p.stephani2 <at> gmail.com>
Cc: 23354 <at> debbugs.gnu.org
Subject: Re: bug#23354: 25.1.50; Unicode literals aren't handled correctly
 by some commands
Date: Fri, 06 May 2022 18:37:53 +0200

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> I just checked whether things has changed -- and, no, backward-sexp and
> friends still do the wrong thing on Unicode literals like
>
> ?\N{HEAVY CHECK MARK}
>
> in Emacs Lisp buffers.  In particular, backward-sexp after the final "}"
> skips to the start of "MARK", and forward-sexp at the start skips to the
> end of "HEAVY".

I've now fixed this in Emacs 29.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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