Parsing expression grammars

Parsing Expression Grammars (PEGs) are a method used to define how to recognize and interpret strings or text patterns. Think of it like a rulebook that describes how sentences are structured in a language. PEGs systematically specify what sequences of characters are valid and how to break down complex text into simpler parts for understanding or processing. They are commonly used in programming language compilers and interpreters to parse code accurately. Unlike some other methods, PEGs use clear, ordered rules that always produce a unique interpretation, making them reliable for parsing complex patterns efficiently.