GNU bug report logs - #72311
[PATCH] Treat period as a symbol constituent in cc-mode

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Stefan Kangas <stefankangas <at> gmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#72310: closed ([PATCH] Treat period as a symbol constituent
 in cc-mode)
Date: Sun, 23 Feb 2025 00:50:03 +0000

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and subject line Re: bug#72311: [PATCH] Treat period as a symbol constituent in cc-mode
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regarding [PATCH] Treat period as a symbol constituent in cc-mode
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From: Vladislav Yegorov <vlad <at> yegorov.org>
To: bug-gnu-emacs <at> gnu.org
Subject: [PATCH] Treat period as a symbol constituent in cc-mode
Date: Fri, 26 Jul 2024 21:20:58 +0200

I am not sure if this is intended behavior or not, but as it's just a
small change I am directly submitting a patch.

I would expect c-mode to treat numbers with a decimal point as one
symbol instead of two separate.  The same thing can be said about
designated initializers (i.e. {.pi = 3.14}).  I quickly checked the
behavior in emacs-lisp-mode and it works as I would expect there
(forward-symbol skips a decimal point number as a whole).

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From: Stefan Kangas <stefankangas <at> gmail.com>
To: Dmitry Gutov <dmitry <at> gutov.dev>
Cc: Alan Mackenzie <acm <at> muc.de>, Eli Zaretskii <eliz <at> gnu.org>,
 Vladislav Yegorov <vlad <at> yegorov.org>, Jeremy Bryant <jb <at> jeremybryant.net>,
 72311-done <at> debbugs.gnu.org
Subject: Re: bug#72311: [PATCH] Treat period as a symbol constituent in cc-mode
Date: Sun, 23 Feb 2025 00:49:49 +0000

Dmitry Gutov <dmitry <at> gutov.dev> writes:

> On 27/07/2024 14:26, Alan Mackenzie wrote:
>> It would be possible to put a syntax-table text property on a '.' when
>> it is followed directly by a decimal digit, with no space between.
>> Maybe we could also check that there's a valid number character before
>> the . (space, BOL, 0-9, -, ...?), but that might be over engineering.
>
> That sounds like the better choice indeed, but given the increase in complexity
> maybe the minor improvement in behavior is not really worth the effort.

It sounds like this is not a change that we want to make, so I'm closing
this now.

Nevertheless, thanks for the patch, Vladislav.

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