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DataRSS parser [Fwd: ANN: RDF::RDFa::Parser 0.30 and XML::Atom::OWL 0.01]

From: Toby Inkster <tai@g5n.co.uk>
Date: Mon, 18 Jan 2010 23:19:00 +0000
To: public-rdfa <public-rdfa@w3.org>
Message-ID: <1263856740.18556.286.camel@ophelia2.g5n.co.uk>
The RDF::RDFa::Parser Perl RDFa parser now supports DataRSS (i.e. RDFa
in Atom).

-------- Forwarded Message --------
From: Toby Inkster <mail@tobyinkster.co.uk>
To: dev@lists.perlrdf.org
Subject: ANN: RDF::RDFa::Parser 0.30 and XML::Atom::OWL 0.01
Date: Mon, 18 Jan 2010 23:06:06 +0000

There are three major improvements in RDF::RDFa::Parser 0.30:

1. It installs the XHTML+RDFa DTD and associated modules on your
filesystem (probably in a directory named something like
This allows libxml to parse XHTML+RDFa files much more quickly.

2. It has a better callback system. In particular, Gregory Williams will
be interested in the callback event called "ontriple". Hooking a
function onto that allows it to be passed an RDF::Trine::Statement
object as soon as it's parsed. Something similar was previously
possible, but the callback function would only be passed strings - not a
fully-ready statement.

3. It supports RDFa found in Atom feeds. It does some special magic to
allow <feed> and <entry> elements to automatically set a new subject for

XML::Atom::OWL is a brand new module that parses Atom feeds into
RDF::Trine models using Henry Story's AtomOWL vocabulary.

RDF::RDFa::Parser (if called with the 'atom_parser' option enabled) will
delegate Atom parsing to XML::Atom::OWL, allowing you to create a
combined graph of Atom+RDFa documents. Atom+RDFa has been marketed by
Yahoo under the name "DataRSS" and is potentially a very nice format.

Lastly, RDF::RDFa::Parser::Redland 0.30 has been released, catching it
up with changes in the underlying RDF::RDFa::Parser.

All have been uploaded and should appear on CPAN mirrors soon.

Toby A Inkster
Received on Monday, 18 January 2010 23:19:40 UTC

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