Json -> Value

Value -> Null
Value -> Boolean
Value -> Number
Value -> String
Value -> Array
Value -> Object

Null -> 'null'

Boolean -> 'true'
Boolean -> 'false'

Number -> %f

String -> %s

Array -> '[' ']'
Array -> '[' ArrayElements ']'

ArrayElements -> Value
ArrayElements -> ArrayElements ',' Value

Object -> '{' '}'
Object -> '{' ObjectElements '}'

ObjectElements -> String ':' Value
ObjectElements -> ObjectElements ',' String ':' Value

%f -> /[-]?(0|[1-9][0-9]*)(\.[0-9]+)?([eE][+-]?[0-9]+)?/
%s -> /"([^"\\]|\\["\\bnfrt]|u[a-fA-F0-9]{4})*"/