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bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension
From: |
Eli Zaretskii |
Subject: |
bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension |
Date: |
Fri, 02 Jun 2023 15:51:53 +0300 |
> Date: Fri, 02 Jun 2023 20:11:33 +0800
> From: Po Lu via "Bug reports for GNU Emacs,
> the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>
> A common extension to the C language is the use of the `$' sign inside
> external identifier names.
>
> This is permitted by GNU CC on most systems it supports, and also
> supported by CC Mode. However, it does not work on c-ts-mode:
>
> sl$loadarena ()
> {
> struct FAB fab;
> register int status;
> extern char *sl$dfname;
>
> fab = cc$rms_fab;
> fab.fab$b_fac = FAB$M_BIO | FAB$M_GET;
> fab.fab$l_fna = sl$dfname;
> fab.fab$b_fns = strlen (sl$dfname);
> status = sys$open (&fab);
> if (status != RMS$_NORMAL)
> return status;
> /* More code below. */
> }
>
> in the identifier name of this function declarator, `sl' is fontified as
> a type. `$' is not fontified at all. `loadarena' is fontified as an
> identifier name, as it should be. In:
>
> extern char *sl$defname;
>
> only `dfname' is fontified as a variable name; in CC Mode, all
> fontification is correct.
>
> This should be a simple change in c-ts-mode's identifier fontifying
> regexp to include `$', right? I don't know enough about tree-sitter to
> fix it myself.
I'm not sure this can be fixed unless the tree-sitter's C grammar
supports such identifiers, but if we can fix it in our code, we
should.
Yuan and Theo, can you please look into this?
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Po Lu, 2023/06/02
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension,
Eli Zaretskii <=
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Yuan Fu, 2023/06/08
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Po Lu, 2023/06/08
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Eli Zaretskii, 2023/06/15
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Yuan Fu, 2023/06/16
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Eli Zaretskii, 2023/06/16
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Yuan Fu, 2023/06/19
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Eli Zaretskii, 2023/06/19
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Yuan Fu, 2023/06/27
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Eli Zaretskii, 2023/06/27
- bug#63840: 29.0.91; c-ts-mode fails to fontify common C extension, Yuan Fu, 2023/06/27