GNU bug report logs - #77746
[PATCH] sh-mode: Fix incorrect word syntax for punctuation in sh-mode

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From: Eli Zaretskii <eliz <at> gnu.org>
To: James Cherti <contact <at> jamescherti.com>
Cc: 77746 <at> debbugs.gnu.org, monnier <at> iro.umontreal.ca, juri <at> linkov.net
Subject: bug#77746: [PATCH] sh-mode: Fix incorrect word syntax for punctuation in sh-mode
Date: Tue, 15 Apr 2025 21:25:13 +0300

> Date: Tue, 15 Apr 2025 12:22:08 -0400
> Cc: juri <at> linkov.net, 77746 <at> debbugs.gnu.org
> From: James Cherti <contact <at> jamescherti.com>
> 
> On 2025-04-15 11:24, Eli Zaretskii wrote:
>  >> From: Stefan Monnier <monnier <at> iro.umontreal.ca>
>  >> Cc: James Cherti <contact <at> jamescherti.com>,  77746 <at> debbugs.gnu.org,
>  >>    juri <at> linkov.net
>  >> Date: Tue, 15 Apr 2025 11:17:02 -0400
>  >>
>  >>>> The issue occurs in both sh-mode and bash-ts-mode.
>  >>> I'm surprised that bash-ts-mode should use syntax tables, instead of
>  >>> relying on the results of parsing by tree-sitter.
>  >>
>  >> It's not front-and-center in his bug report, but what he means by
>  >> "completion" seems to be mostly dabbrev completion, which doesn't make
>  >> use of tree-sitter.
>  >
>  > He also mentioned font-lock.
> 
> Yes, this patch fixes dabbrev, functions such as
> (highlight-symbol-at-point), and any other function that
> relies on thing-at-point for symbol detection.
> 
> (The core issue is inaccurate symbol detection. This patch
> improves it by excluding characters that should not be
> considered part of a valid variable name.)

I'd expect a parser to detect variable names correctly, and without
the help of our syntax tables and related code.

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