JSON.SyntaxValidator is a C# library to validate JSON strictly or in relax mode.

Because all .NET JSON frameworks I tested (in 01/2013) do not follow strictly the JSON standard and this is what you I needed to work with JSON.parse() in JavaScript. Once the JSON is validated, you can also access the data programmatically. JSON.SyntaxValidator is a read-only library.

By default the library strictly follows the JSON standard

• Property name must be string
• String use double quote only
• No trailing comma
• No // comment
• No /* */ Comment

The library is used in the Visual Studio extension TextHighlighterExtension to validate JSON on the fly syntax validation.

##Samples:

JSON Sample:

{
    "LastName" : "Torres"			   ,
    "FirstName": "Frederic"			   ,
    "BirthDate": "1964-12-11T00:00:00Z",
    "Age"	   : 48					   ,
    "Male"	   : true				   ,
    "Other"	   : null
}

C# Sample:

[TestMethod]
public void ParseSimpleJsonFile()
{
    var json = DS.Resources.GetTextResource("Me.json", Assembly.GetExecutingAssembly());

    var o    = (Hashtable) new JSON.SyntaxValidator.Compiler().Validate(json);

    Assert.AreEqual("Torres", o["LastName"]);
    Assert.AreEqual("Frederic", o["FirstName"]);
    Assert.AreEqual(new DateTime(1964,12,11), o["BirthDate"]);
    Assert.AreEqual(48.0, o["Age"]);
    Assert.AreEqual(true, o["Male"]);
    Assert.AreEqual(null, o["Other"]);
}

To support

• /* */ Comment
• property name defined as ID or string
• Trailing comma The relax mode can be activated in programmatically

Sample:

var o = (Hashtable) new JSON.SyntaxValidator.Compiler().Validate(json, supportStartComment:true, relaxMode:true);

The software is subject to the MIT license: you are free to use it in any way you like, but it must keep its license.