Saxon

It is not entirely clear whether XQuery 3.1 allows the computed name in a computed element or attribute constructor to be an EQName in the form Q{uri}local. We are allowing it, but new tests from Christian Grün show that we're getting some of the detail wrong:

(a) the URI part needs to be whitespace-collapsed

(b) for attributes, we need to allocate a prefix, and we're doing this incorrectly

(c) we probably shouldn't expand entity/character references (there's nothing in the spec either way on this in the spec, but it seems an inappropriate thing to do at run-time)

(d) we should reject an opening brace in the URI - the grammar doesn't allow it.