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

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From: Yuan Fu <casouri <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Jostein Kjønigsen <jostein <at> kjonigsen.net>, 75580 <at> debbugs.gnu.org, Sami Batuhan Basmaz Ölmez <sb.basmazolmez <at> gmail.com>, Theodor Thornhill <theo <at> thornhill.no>
Subject: bug#75580: 30.0.93; statements inside string interpolation for csharp modes are fontified incorrectly
Date: Fri, 17 Jan 2025 23:56:51 -0800

> 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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