Perhaps it is a new invention nobody has thought of?

Call me cynical and cranky but this sounds a lot like "aXML" to me. If you don’t have code to look at and try then this comes off as a peculiar boast, apropos of nothing. Home rolled systems are only interesting to others if the others either share exact specialization concerns or the home rolled system comes with tests, examples, documentation, and a compelling reason to investigate it rather than the many existing alternatives with same.

Kind of hard to share with others…

No, it’s not. Put it in a public RCS, set it up as a standard CPAN-style Perl distribution, and it shares itself.