Dear Michael, thanks for your observations and your thorough report. I definitely agree this looks like a bug, which also occurs in the latest snapshot, and I am even more surprised this has not been observed earlier. I have added a bug report to GitHub [1], and we will give you notice whenever this has been fixed.
All the best, Christian [1] https://github.com/BaseXdb/basex/issues/697 ___________________________ On Fri, May 10, 2013 at 4:06 AM, C. M. Sperberg-McQueen <[email protected]> wrote: > I'm having a puzzling experience with BaseX 7.6 running under Mac OS X > 10.6.8. > > Consider the following document, in my file system as test.xml: > > <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";> > <xsd:element name="back"/> > <xsd:element name="body"> > <xsd:annotation xmlns:xsd="http://www.w3.org/2000/10/XMLSchema"/> > </xsd:element> > <xsd:element name="bold"/> > </xsd:schema> > > The query doc('.../test.xml')//xs:element returns not three elements, > but just the first two. The third element is encountered after the > prefix 'xsd' was temporarily rebound to a different namespace, and it > is not recognized as being in the same namespace as the other > 'element' elements. (Further investigation shows that the system > believes it to be in namespace http://www.w3.org/2000/10/XMLSchema.) > > Some observations: > > - The behavior has nothing to do with the specific namespace or the > fact that the XSD namespace is predefined; analogous behavior > occurs with the following document: > > <a:a xmlns:a="http://example.com/a";> > <a:b/> > <a:b> > <x xmlns:a="http://example.com/x"/> > </a:b> > <a:b/> > </a:a> > > - If a database is built using the document just given, the query > > declare namespace foo = "http://example.com/a";; > //foo:b > > returns two elements, not three. In my tests, it appeared not to > matter whether I checked or unchecked the 'Use internal XML parser' > box; I got two elements either way. > > - The behavior changes if the document is given literally in the > query; the following query returns three {http://example.com/a}b > elements, not two: > > declare namespace foo = "http://example.com/a";; > let $doc := > <a:a xmlns:a="http://example.com/a";> > <a:b/> > <a:b> > <x xmlns:a="http://example.com/x"/> > </a:b> > <a:b/> > </a:a> > return $doc//foo:b > > Is this a bug, or am I doing something wrong? It looks as if > something were going wrong in the XML parser's management of namespace > bindings. > > Thanks for any light you can shed on the matter. In the short run > I suppose I can try to revise my XSLT to suppress the unnecessary > namespace rebindings. > > > -- > **************************************************************** > * C. M. Sperberg-McQueen, Black Mesa Technologies LLC > * http://www.blackmesatech.com > * http://cmsmcq.com/mib > * http://balisage.net > **************************************************************** > > > > > _______________________________________________ > BaseX-Talk mailing list > [email protected] > https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk _______________________________________________ BaseX-Talk mailing list [email protected] https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk
