- From: Yosi Scharf <syosi@MIT.EDU>
- Date: Sat, 13 Oct 2007 20:06:28 -0400
- To: "Sean B. Palmer" <sean@miscoranda.com>
- CC: public-cwm-bugs@w3.org
Sean B. Palmer wrote: > In trying to get cwm-1.2.0a1 to output an rdf:XMLLiteral without > escaping it (is this possible?), I found a valid RDF/XML file that it > can't parse: > > $ cat test.rdf > <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" > xmlns="http://example.org/#"> > <rdf:Description rdf:about="http://example.org/#p"> > <q rdf:parseType="Literal"><p xmlns="">...</p></q> > </rdf:Description> > </rdf:RDF> > > (File validates according to the W3C RDF Validator.) > > $ cwm --rdf test.rdf > Traceback (most recent call last): > File "/usr/local/bin/cwm", line 740, in <module> > doCommand() > File "/usr/local/bin/cwm", line 451, in doCommand > why=myReason) > File ".../python2.5/site-packages/swap/webAccess.py", line 184, in load > p.feed(buffer) > File ".../python2.5/site-packages/swap/sax2rdf.py", line 769, in feed > self._p.feed(data) > File ".../python2.5/xml/sax/expatreader.py", line 207, in feed > self._parser.Parse(data, isFinal) > File ".../python2.5/xml/sax/expatreader.py", line 360, in start_namespace_decl > self._cont_handler.startPrefixMapping(prefix, uri) > File ".../python2.5/site-packages/swap/sax2rdf.py", line 362, in > startPrefixMapping > uri = self.uriref(uri) > File ".../python2.5/site-packages/swap/sax2rdf.py", line 209, in uriref > return uripath.join(self._base, str) > File ".../python2.5/site-packages/swap/uripath.py", line 103, in join > slashl = find(there, '/') > File ".../python2.5/string.py", line 359, in find > return s.find(*args) > AttributeError: 'NoneType' object has no attribute 'find' > > I've reproduced, and fixed the bug. The test is (as given) http://www.w3.org/2000/10/swap/test/xml-syntax/detailed.tests#xmllit010 . > At any rate, my main goal here is to get it to output a > parseType="Literal" section; please consider that the main bug raised > by this email. Consumption, for my current needs, is second in > importance. > > An example of what I've tried for production: > > $ echo '@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . > :p :xml "<p>...</p>"^^rdf:XMLLiteral .' | cwm --n3 --rdf > <rdf:RDF xmlns="file:/...#" > xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> > <rdf:Description rdf:about="#p"> > <xml rdf:datatype="http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral" > ><p>...</p></xml> > </rdf:Description> > </rdf:RDF> > > I'm not sure if this is really equivalent or not. I mean, I wouldn't > have thought so, but when I bung the test.rdf document at the top of > this bug report into the RDF Validator, the literal that it gives is: > > "<p>...</p>"^^http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral > > Is the RDF Validator wrong about this too? Shouldn't it be > "<p>...</p>"^^&c.? Look what happens when I feed it back through cwm: > > $ echo ':p :q "<p>...</p>"^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral> > .' | cwm --n3 --rdf > <rdf:RDF xmlns="...#" > xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> > <rdf:Description rdf:about="#p"> > <q rdf:datatype="http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral">&lt;p&gt;...&lt;/p&gt;</q> > </rdf:Description> > </rdf:RDF> > > Either the validator is escaping when it shouldn't do, or cwm isn't > unescaping when it should do, as far as I understand the situation. > I can't reproduce in latest cvs. That may already be fixed. Yosi
Received on Sunday, 14 October 2007 00:06:52 UTC