Parsing Expression Grammar

Parsing Expression Grammar (PEG) is a formal way to describe the structure of language or data formats, similar to a recipe for recognizing valid sequences. It uses rules to specify patterns, such as words or symbols, to determine if a sequence conforms to a language. PEGs are unambiguous, meaning each pattern matches only one way, making parsing predictable. They are often used in designing parsers for programming languages or data formats because they clearly define syntax rules and help computers understand and process complex structures efficiently.