bug#81588: 32.0.50; c-ts-mode is indenting concatenated string literals

Tomas Nordin [09/Aug 11:38am GMT] wrote:
> To reproduce this problem, write a c-file with something like the
> following code making sure c-ts-mode is NOT enabled, using emacs -Q:
>
> char *lines =
>   "line1\n"
>   "line2\n";
>
> Observe how hitting TAB on respective line is not changing the
> indentation.
>
> Now turn on c-ts-mode and observe how hitting TAB will change the
> indentation to this.
>
> char *lines =
>   "line1\n"
>     "line2\n"
>
> I would typically expect the c-mode behavior.
>
> In bug#68493 I mentioned a diff that fixes this problem for me. I
> thought I should present it here in its own bug report to be rejected
> or accepted or something else. I attach the diff.
>
> In GNU Emacs 32.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
>  3.24.49, cairo version 1.18.4) of 2026-08-09 built on fliptop2
> Repository revision: b157d8e96a26e7509136bf93fad2c7ec49c0ee88
> Repository branch: master
> Windowing system distributor 'The X.Org Foundation', version 11.0.12101016
> System Description: Debian GNU/Linux 13 (trixie)
>
> diff --git a/lisp/progmodes/c-ts-mode.el b/lisp/progmodes/c-ts-mode.el
> index 5f064716a89..fa09cb21b34 100644
> --- a/lisp/progmodes/c-ts-mode.el
> +++ b/lisp/progmodes/c-ts-mode.el
> @@ -503,7 +503,8 @@ c-ts-mode--simple-indent-rules
>                                  "enum_specifier"
>                                  "union_specifier"
>                                  "function_declarator"
> -                                "template_declaration")))
> +                                "template_declaration"
> +                                "concatenated_string")))
>              standalone-parent 0)
>             ;; This is for the trailing-star stype:  int *
>             ;;                                       func()

Yuan, what do you think?

-- 
Sean Whitton