Extended Backus Naur Form
Extended Backus Naur Form (EBNF) is a formal notation used to describe the syntax of programming languages, data formats, and other structured languages. It extends the original Backus-Naur Form (BNF) with additional operators for optionality, repetition, and grouping, making grammar specifications more concise and readable. EBNF is widely used in language documentation, compiler design, and parser generation tools.
Developers should learn EBNF when working on language design, implementing parsers, or documenting formal grammars, as it provides a clear and standardized way to specify syntax rules. It is particularly useful in compiler construction, data format validation (e.g., for JSON or XML schemas), and when using parser generators like ANTLR or Yacc, where precise grammar definitions are required.