Ebnf Grammar Definition And Composition

Microsoft's language for efficient LLM control flow.

Unique: Provides EBNF syntax for defining grammars that are compiled into GrammarNode ASTs, enabling developers to express complex constraints using a standard formal notation. Rules are composable and reusable across programs via a grammar registry.

vs others: More expressive and maintainable than nested Python grammar objects because EBNF is a standard notation, and more flexible than hardcoded format strings because rules can be parameterized and composed.