Tag: negative lookbehind

Articles and experiments related to negative lookbehind.

C# CSS Classname Regex

I've updated my C# regex for extracting CSS class names to correctly handle URLs in CSS properties like url(someimage.png). The previous version incorrectly matched file extensions. The improved regex uses a negative lookbehind assertion (?<!url\s*\(.*) to prevent matching class names within url() declarations. It now accurately extracts class names, even with variations in spacing within the url() function.

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