- Eval-time prefix bindings: Query.evaluate(over:namespaces:) and
value(at:...:namespaces:) supply prefix to URI bindings, so a name test
like q:item resolves q to a URI and matches by namespace regardless of
the document's own prefix. The match is namespace-aware only when
bindings are present, so existing unprefixed/prefix-string queries are
unchanged.
- XPointer schemes: xpath1() evaluates an XPath expression (like
xpointer()), and xmlns(p=uri) binds a prefix for the expression parts
that follow it, threaded into the XPath evaluation.
The range() scheme (and so XInclude range inclusion) remains.
Part of #88
Add the PureXML.XPointer namespace resolving the shorthand bare-name form
(id), the element() scheme (child-element positions from an id or the
document root), and the xpointer() scheme (a full XPath expression). Scheme
parts chain with the XPointer fallback rule: the first non-empty selection
wins. element() data is translated to the equivalent XPath and evaluated by
PureXML.XPath, so no separate evaluator is needed.
Closes#46Closes#47Closes#23
