I can recommend the book „Compilers: Principles, Techniques and Tools“ [often called „Dragon Book“]. It explains from the basics with all the theory how to writ

I can recommend the book „Compilers: Principles, Techniques and Tools“ [often called „Dragon Book“]. It explains from the basics with all the theory how to write a Leser, parser and much more features. It is one of the few books I bought after university. https://en.m.wikipedia.org/wiki/Compilers:_Principles,_Techniques,_and_Tools https://en.m.wikipedia.org/wiki/Compilers:_Principles,_Techn...