the spec is 10 chapters. everything is unquoted by default, so parsers must be able to guess the data type of every value, and will silently convert them if they are, but leave them alone otherwise. there are 63 possible combinations of string type. "no" and "on" are both valid booleans. it supports sexagesimal numbers for some reason, using the colon as a separator just like for objects. other things of this nature.