This is yet another syntax highlighter for lex/yacc and flex/bison.

This extension provides full syntax highlight for these languages and also for the embedded language C/C++.

This extension also supports some basic language features such as:

• Code diagnostic
• Auto-completion
• Go to Definition
• Go to Type Definition
• Find references
• Rename Symbol
• Hover

You can find more previews here previews.

Since 1.43.0 VSCode enabled a new feature called Semantic Highlighting, this extension supports it.

By default, only the built-in themes has semantic highlighting enabled, so if you are using a 3rd party theme that doesn't support the semantic coloring yet, you have to add these lines to your settings.json file to have the feature enabled.

"editor.tokenColorCustomizations": {
	"[name of the theme]": {
		"semanticHighlighting": true
	}
}

For extra information see https://github.com/microsoft/vscode/wiki/Semantic-Highlighting-Overview.

Here is the comparison with and without semantic highlighting.

On left enabled, on right disabled

VSCode ^1.44

• @babyraging - creator
• @sceriffo - creator