json.dogma

dogma_v1 utf-8
- identifier  = json
- description = Javascript Object Notation
- charsets    = utf-8, utf-16, utf-16be, utf-16le, utf-32, utf-32be, utf-32le
- reference   = https://www.json.org/json-en.html
- dogma       = https://github.com/kstenerud/dogma/blob/master/v1/dogma_v1.md

document    = element;
element     = WS & value & WS;
value       = object
            | array
            | string
            | number
            | "true"
            | "false"
            | "null"
            ;
object      = '{' & member & (',' & member)* & '}';
member      = string & ':' & element;
array       = '[' & element & (',' & element)* & ']';
string      = WS & '"' (character | escape)* '"' & WS;
character   = (unicode(L|M|N|P|S|Z|Cf|Co) | '\[9]') ! ('"' | '\\');
escape      = '\\' & ('"' | '\\' | '/' | 'b' | 'f' | 'n' | 'r' | 't' | 'u' & hex{4});
hex         = '0'~'9' | 'a'~'f' | 'A'~'F';
number      = integer & fraction? & exponent?;
integer     = '0' | ('-'? & first_digit & next_digit*);
fraction    = '.' & next_digit+;
exponent    = ('e' | 'E') & ('+' | '-')? & next_digit+;
first_digit = '1'~'9';
next_digit  = '0'~'9';
WS          = (' ' | '\[a]' | '\[d]' | '\[9]')*;