JSON: Difference between revisions

Line 6:

=={{header|ANTLR}}==

[[File:ANTLRJson.png|left|ANTLR]]

[[File:ANTLRObject.png|left|ANTLR]]

[[File:ANTLRPair.png|left|ANTLR]]

Line 18:

Line 17:

===Java===

//

// Parse JSON

//

Line 34:

Line 32:

Keyword : 'true' | 'false' | 'null';

String : '"' (Control? Tz)* '"';

json : WS* object WS*;

object : '{' {System.out.println(Indent + "{Object}"); Indent += " ";} (pair (',' pair*)*)? '}' {Indent = Indent.substring(4);};

pair : WS* e = String WS* {System.out.println(Indent + "{Property}\t" + $e.text);} ':' WS* value;

pair : e = String {System.out.println(Indent + "{Property}\t" + $e.text);} ':' value;

value : Number {System.out.println(Indent + "{Number} \t" + $Number.text);}

| object

Line 42:

Line 39:

| Keyword {System.out.println(Indent + "{Keyword} \t" + $Keyword.text);}

| array;

array : '[' {System.out.println(Indent + "Array"); Indent += " ";}WS* (value WS* (',' WS* value WS*)*)? ']' {Indent = Indent.substring(4);};

array : '[' {System.out.println(Indent + "Array"); Indent += " ";} (value (',' value)*)? ']' {Indent = Indent.substring(4);};

</lang>

Produces: