feat: add C# syntax highlighting (#1651)

jb/paseo

Wire the @replit/codemirror-lang-csharp Lezer grammar into @getpaseo/highlight following the existing per-language pattern (Java/Rust/Swift). Map the cs extension to the parser and alias the csharp and c# markdown fence names so fenced code blocks highlight.

Register csharpLanguage.parser rather than the package's raw parser export: the highlight styleTags are applied only inside csharpLanguage (via parser.configure), so the raw parser would parse but render unstyled.

Closes #1527

Co-authored-by: Clemens Wagner <wagner.clemens@gmx.de>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

This commit is contained in:

dev693-ai

2026-06-26 13:18:15 +00:00

committed by

GitHub

co-authored by

Clemens Wagner

Claude Opus 4.8

parent 85322c5968

commit 6277ba1ff9

6 changed files with 37 additions and 0 deletions

									
										packages/app/src/components/highlighted-code-block.tsx
									
		+2
		
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				@@ -29,6 +29,8 @@ const LANGUAGE_ALIASES: Record<string, string> = {

				  rust: "rs",

				  golang: "go",

				  "c++": "cpp",

				  csharp: "cs",

				  "c#": "cs",

				  objc: "m",

				  "objective-c": "m",

				  markdown: "md",