JavaML
An XML-based Source Code Representation for Java Programs
 SDML: srcML
A document-oriented XML representation of source code
 cppML
cppML is a representation of the C++ grammar using XML.
grammars
CSF Specification
http://sds.sourceforge.net/doc/csf.html

The core of SDS is the Code Structure Format (CSF) which collects most interesting information about source code which can be easily utilised by tools.

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