Json ML
JsonML, the JSON Markup Language is a lightweight markup language used to map between XML (Extensible Markup Language) and JSON (JavaScript Object Notation). It converts an XML document or fragment into a JSON data structure for ease of use within JavaScript environments such as a web browser, allowing manipulation of XML data without the overhead of an XML parser.
JsonML has greatest applicability in Ajax (Asynchronous JavaScript and XML) web applications. It is used to transport XHTML (eXtensible HyperText Markup Language) down to the client where it can be deterministically reconstructed into DOM (Document Object Model) elements. Progressive enhancement strategy can be employed during construction to bind dynamic behaviors to otherwise static elements.
JsonML can also be used as the underlying structure for creating intricate client-side templates called JBST (JsonML+Browser-Side Templates). Syntactically JBST looks like JSP (JavaServer Pages) or ASP.NET (Active Server Pages .NET) user controls. Interactive examples are available on the jsonml.org website.
Read more about Json ML: Syntax