get-xml-file-static-dependency-tree: dealing with static xpath ?

[mricaud]

If an XSLT is loading a file using xpath function: document('string/to/file') should it be analyzed to be a dependency ?
The same with collection(), doc(), unparsed-text() .
Xproc loading with p:with-option is also concerned.

This is tricky because that means we have to analyze the XPath, and determin if it's "static" or not.

Usefull ?