Add formal grammar #18
Description
To be complete, this specification needs a formal grammar. There are a few options:
- McKeeman Form
- ABNF grammar
- EBNF grammar
json.org links to this McKeeman Form which could be modified to include comments and trailing commas. However, it is not widely used and IETF publications favor ABNF grammars. For those 2 reasons, an ABNF is probably the way to go.