GNU bug report logs - #75580
30.0.93; statements inside string interpolation for csharp modes are fontified incorrectly

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Yuan Fu <casouri <at> gmail.com>
Cc: jostein <at> kjonigsen.net, 75580 <at> debbugs.gnu.org, sb.basmazolmez <at> gmail.com, theo <at> thornhill.no
Subject: bug#75580: 30.0.93; statements inside string interpolation for csharp modes are fontified incorrectly
Date: Sat, 01 Feb 2025 13:42:54 +0200

Ping! Theo and Jostein, could you please comment?

> From: Yuan Fu <casouri <at> gmail.com>
> Date: Fri, 17 Jan 2025 23:56:51 -0800
> Cc: Sami Batuhan Basmaz Ölmez <sb.basmazolmez <at> gmail.com>,
>  75580 <at> debbugs.gnu.org,
>  Theodor Thornhill <theo <at> thornhill.no>,
>  Jostein Kjønigsen <jostein <at> kjonigsen.net>
> 
> 
> 
> > On Jan 16, 2025, at 7:42 AM, Eli Zaretskii <eliz <at> gnu.org> wrote:
> > 
> >> From: Sami Batuhan Basmaz Ölmez <sb.basmazolmez <at> gmail.com>
> >> Date: Wed, 15 Jan 2025 08:02:50 +0000
> >> 
> >> An interpolated string `$"string content {myFunction(myVariable)}
> >> another string content"` are highlighted incorrectly as expressions
> >> inside brackets are also fontified with string face for csharp-mode and
> >> csharp-ts-mode. They should be fontified like statements.
> >> Interpolation occurs inside curly braces.
> > 
> > Thank, but could you please post a minimal C# source file that
> > exhibits this behavior?
> > 
> > Yuan, any comments about this?
> 
> The direct cause is that the font-lock rules for strings have :override flag, and string face is applied on the whole string, overriding whatever fontification the function invocation had. But the string rule has :override for a reason, the Theo and Jostein should know more.
> 
> Yuan

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