ARQ not rejecting surrogates in query strings.

[afs]

Version

Up to 5.3.0

What happened?

        String queryString = "SELECT * { ?s <http://example/p> '\\uD800'. }";
        QueryFactory.create(queryString, Syntax.syntaxARQ);

NB The double backslash

This should throw a parse error because the surogate is not allowed.

Syntax.syntaxSPARQL_12 correctly throws an exception.

Are you interested in making a pull request?

Yes

[afs]

There is a fix for this on my RDF-1.2 development branch.
The fix is connected to the SPARQL parser which had modifications for RDF 1.2 and a fix on main would be a conflict.