BNF (Backus-Naur Form)

Backus-Naur Form (BNF) is a formal way to describe the syntax, or structure, of programming languages and data formats. It uses a set of rules and symbols to specify how valid statements or constructs are built. Think of it as a precise grammar guide that defines what combinations of words, symbols, or characters are correct. BNF helps both humans and computers understand and check the rules for constructing valid code or data, ensuring consistency and clarity in language design.