JSON: Difference between revisions
Content deleted Content added
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=={{header|ANTLR}}== |
=={{header|ANTLR}}== |
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[[File:ANTLRJson.png|left|ANTLR]] |
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[[File:ANTLRObject.png|left|ANTLR]] |
[[File:ANTLRObject.png|left|ANTLR]] |
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[[File:ANTLRPair.png|left|ANTLR]] |
[[File:ANTLRPair.png|left|ANTLR]] |
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===Java=== |
===Java=== |
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<lang java> |
<lang java> |
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// |
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// Parse JSON |
// Parse JSON |
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// |
// |
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Keyword : 'true' | 'false' | 'null'; |
Keyword : 'true' | 'false' | 'null'; |
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String : '"' (Control? Tz)* '"'; |
String : '"' (Control? Tz)* '"'; |
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json : WS* object WS*; |
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object : '{' {System.out.println(Indent + "{Object}"); Indent += " ";} (pair (',' pair*)*)? '}' {Indent = Indent.substring(4);}; |
object : '{' {System.out.println(Indent + "{Object}"); Indent += " ";} (pair (',' pair*)*)? '}' {Indent = Indent.substring(4);}; |
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pair : |
pair : e = String {System.out.println(Indent + "{Property}\t" + $e.text);} ':' value; |
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value : Number {System.out.println(Indent + "{Number} \t" + $Number.text);} |
value : Number {System.out.println(Indent + "{Number} \t" + $Number.text);} |
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| object |
| object |
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| Keyword {System.out.println(Indent + "{Keyword} \t" + $Keyword.text);} |
| Keyword {System.out.println(Indent + "{Keyword} \t" + $Keyword.text);} |
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| array; |
| array; |
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array : '[' {System.out.println(Indent + "Array"); Indent += " ";} |
array : '[' {System.out.println(Indent + "Array"); Indent += " ";} (value (',' value)*)? ']' {Indent = Indent.substring(4);}; |
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</lang> |
</lang> |
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Produces: |
Produces: |