Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

RDFa 1.0 xmlns namespace not parsed ? #49

Open
tfrancart opened this issue Jan 6, 2017 · 3 comments
Open

RDFa 1.0 xmlns namespace not parsed ? #49

tfrancart opened this issue Jan 6, 2017 · 3 comments
Labels
bug

Comments

@tfrancart
Copy link 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.0//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:eli="http://data.europa.eu/eli/ontology#" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" version="XHTML+RDFa 1.0" lang="fr">
	<head>
		<title>xxx</title>
		<meta property="eli:passed_by" content="Foo" />
	</head>
	
	<body>
	</body>
</html>

Parsed with the following code :

Model model = ModelFactory.createDefaultModel();			
StreamProcessor streamProcessor = new StreamProcessor(RdfaParser.connect(JenaSink.connect(model)));
			
nu.validator.htmlparser.sax.HtmlParser reader = new nu.validator.htmlparser.sax.HtmlParser(XmlViolationPolicy.ALTER_INFOSET);
streamProcessor.setProperty(StreamProcessor.XML_READER_PROPERTY, reader);
			
streamProcessor.process(htmlPage.openStream(), htmlPage.toString());
return model;

Returns :

<file:/home/thomas/temp/test.html>
        <eli:passed_by>  "Foo"@fr .

Note how the prefix "eli" is not resolved. Are the prefix declarations using xmlns supported ? setting .setProperty(RdfaParser.RDFA_VERSION_PROPERTY, RDFa.VERSION_10) doesn't change.

Is there anything I could do in the code to parse the above HTML without changing it ? if no, does anyone sees which modifications need to be done in the XHTML above ?

Thanks a lot !
@ansell ansell added the bug label Jan 6, 2017
@tfrancart
Copy link
Author

Actually, I think the problem is in nu.validator.htmlparser.sax.HtmlParser that does not pass in the SAX events corresponding to the xmlns: declarations. The situation is a bit confuse because HTML, strictly speaking and as far as I can see, does not allow xmlns declarations, other than the html namespace. So I don't know what should happen if an alternate DTD is declared like in this case.

@kaefer3000
Copy link

The same happens when preprocessing the HTML using TagSoup as suggested in #37. TagSoup removes the xmlns declarations.

@bipika
Copy link

bipika commented Jan 25, 2019

hello,
I am getting an error at: "JenaSink.connect(model)" point. Error says: "The method connect(com.hp.hpl.jena.rdf.model.Model) in the type JenaSink is not applicable for the arguments (org.apache.jena.rdf.model.Model)"
Please help me with the problem.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
bug
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
4 participants
@ansell @tfrancart @kaefer3000 @bipika