bug#44418: 28.0.50; Spliced variable not matched as symbol in isearch

[Lars Ingebrigtsen]

"Basil L. Contovounesios" <contovob@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.

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