It is the metadata extraction part that is non trivial.
So packaging the libraries and calls for that sounds like a great way to go.

/Andy

On Mon, Nov 14, 2011 at 7:22 PM, John D. Mitchell <jdmitchell@gmail.com> wrote:
On Nov 14, 2011, at 11:17 , Alexander Holupirek wrote:
[...]
> If you also want to have the extractor functionality ... we thought about packaging [2] it for BaseX and make it available as XQuery functions.  Just give us a hint and we will get going.

++

Cheers,
John