GNU bug report logs - #44418
28.0.50; Spliced variable not matched as symbol in isearch

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Package: emacs;

Reported by: "Basil L. Contovounesios" <contovob <at> tcd.ie>

Date: Tue, 3 Nov 2020 15:39:01 UTC

Severity: minor

Merged with 22238

Found in versions 25.0.50, 28.0.50

Done: Mattias Engdegård <mattias.engdegard <at> gmail.com>

Bug is archived. No further changes may be made.

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Message #8 received at 44418 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: "Basil L. Contovounesios" <contovob <at> tcd.ie>
Cc: 44418 <at> debbugs.gnu.org, Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: Re: bug#44418: 28.0.50; Spliced variable not matched as symbol in
 isearch
Date: Tue, 07 Jun 2022 12:29:51 +0200

"Basil L. Contovounesios" <contovob <at> tcd.ie> writes:

> 0. emacs -Q
> 1. (let (x) `(,@x))
> 2. M-s _ x
>
> This highlights the bound x, but not the spliced x.  The same happens
> with 'M-s .' or the equivalent 'C-M-s'.
>
> This is because lisp--mode-syntax-table gives 'prefix' syntax to ?, and
> 'symbol' syntax to ?@.  Is it possible to give 'prefix' syntax to ",@"
> as a whole, and in general?

(This is still present in Emacs 29.)

I'm not sure whether that is possible or not -- perhaps Stefan knows;
added to the CCs.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no
This bug report was last modified 1 year and 359 days ago.

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