A non-XML syntax for RELAX NG

I've developed an experimental non-XML syntax for RELAX NG.  See

 http://www.thaiopensource.com/relaxng/nonxml/

There's an implementation in Java (using JavaCC) that translates into RELAX
NG.

The RELAX NG schema for RELAX NG in the non-XML syntax is 64 lines (2107
bytes), versus 342 lines (8187 bytes) for the XML syntax.  It's quite
similar in many ways to the type syntax of the current XQuery 1.0 Formal
Semantics WD.

James