cyclone/FEATURES.md

TODO: list of features, table of RxRS features (??), etc

R⁷RS Compliance

Section	Status	Comments
2.2 Whitespace and comments	Partial	No datum or block comments
2.3 Other notations
2.4 Datum labels	No
3.1 Variables, syntactic keywords, and regions
3.2 Disjointness of types	Yes
3.3 External representations
3.4 Storage model		No immutable types at this time.
3.5 Proper tail recursion	Yes
4.1 Primitive expression types
4.2 Derived expression types
4.3 Macros
5.1 Programs	Yes
5.2 Import declarations
5.3 Variable definitions	Partial	define-values is not implemented yet.
5.4 Syntax definitions
5.5 Record-type definitions
5.6 Libraries	Partial	Support is "good enough" but need to make it more robust
5.7 The REPL	Yes
6.1 Equivalence predicates	Yes	eqv? is not implemented, it is just an alias to eq?
6.2 Numbers	Partial	Integers and reals are supported, but most numeric functions are missing at this time.
6.3 Booleans	Yes	#true and #false are not recognized by parser.
6.4 Pairs and lists	Yes	member functions are predicates, member and assoc do not accept compare argument.
6.5 Symbols	Yes
6.6 Characters	Partial	No unicode support, char-ci predicates are not implemented.
6.7 Strings	Partial	Many functions are missing. Need to sync up with r7rs.
6.8 Vectors	Yes
6.9 Bytevectors
6.10 Control features
6.11 Exceptions	Partial	Need to check against r7rs
6.12 Environments and evaluation	Partial
6.13 Input and output
6.14 System interface