Lexer and Parsers?
Are the fundamental (first and second) phase of generating a compiler. When you know how to use these tools, you can create some amazing tools.
Are you Familiar with JavaScript tools shown below?
SME are you a subject matter expert on lexers and parsers?
What's the best, easiest and fastest etc.?
Github css parsers
Goolge searh for CSS parsers
Google search for lexers and parsers