package sexp_grammar

Release v0.16.0

• Depends on Core rather than Base.
• Refactored representation of recursive types. Potentially-recursive definitions are now stored with each Tycon constructor. Within the definitions, the Recursive constructor allows references by name only. This fixes some bugs with substitution of type definitions, and allows incremental unrolling of recursive types.
• Added unroll_tycon and unroll_tycon_untyped for unrolling type definitions at the top level of a grammar.
• Added deriving sexp instead of just sexp_of for grammar types.
• Moved validate_sexp* from Sexp_grammar_validation to Sexp_grammar.
• Stopped requiring quickcheck_observer for Sexp_grammar_validation.validate_grammar*.