RDFa 1.1 Distiller and Parser (Closed) (original) (raw)
This service is now discontinued and the underlying software not maintained any more. The underlying software is available publicly if someone is interested re-establishing the service somewhere.
Warning: This version implementsRDFa 1.1 Core, including the handling of theRole Attribute. The distiller can also run in XHTML+RDFa 1.0 mode (if the incoming XHTML content uses the RDFa 1.0 DTD and/or sets the version attribute). The package available for download, although it may be slightly out of sync with the code running this service.
If you intend to use this service regularly on large scale, consider downloading the package and use it locally. Storing a (conceptually) “cached” version of the generated RDF, instead of referring to the live service, might also be an alternative to consider in trying to avoid overloading this server…
What is it?
RDFa 1.1 is a specification for attributes to be used with XML languages or with HTML5 to express structured data. The rendered, hypertext data of XML or HTML is reused by the RDFa markup, so that publishers don’t need to repeat significant data in the document content. The underlying abstract representation is RDF, which lets publishers build their own vocabulary, extend others, and evolve their vocabulary with maximal interoperability over time. pyRdfa is a distiller that generates RDF triples from an XML or HTML5 file annotated by RDFa in various RDF serialization formats. It can either be used directly from a command line or via a CGI service. It corresponds to the RDFa 1.1 Core document, XHTML+RDFa, and HTML+RDFa specifications, as well as to the SVG Tiny 1.2 Recommendation for the SVG version. The forms above can be used to start the service installed at this site. To learn more about RDFa, please consult the RDFa 1.1 Core Document. See also below for the possibilities to download the package.
As installed, this service is a server-side implementation of RDFa. This also means that pages that generate their (X)HTML content dynamically (e.g., using AJAX) will not be properly processed by this distiller.
Distiller options
Output format (option: format; values:turtle, xml, json, nt; default: turtle)
The default output format is Turtle. Alternative formats are RDF/XML,JSON-LD, and N-triples.
Warnings for non RDFa 1.1 Lite usage (option: rdfa_lite; values: true, false; default: false)
If set to true, a warning will be issued if RDFa 1.1 Core attributes, that are not part of the RDFa 1.1 Lite specification, are used. The separate rdfagraph option should be used to make these warnings visible.
Host language (option: host_language; values: xhtml, html, svg, atom,xml; default: html)
For RDFa files downloaded via a URI, the host language is determined based on the content type (see below for further details). When the content is uploaded or input directly, the host language can be set explicitly.
Returned content (option: rdfagraph; values: output, processor, processor,output; default: output)
By default, the generated triples are returned without warning or error triples. If the processor is set, then those triples are returned, too. See the RDFa 1.1. Core document for further details.
Perform vocabulary expansion (option: vocab_expansion; values: true, false; default: false )
RDFa 1.1 provides the possibility to “expand” the vocabulary provided by the vocab attribute, i.e., to retrieve the corresponding RDF file and follow the possible subclass and subproperty relationships. See the RDFa 1.1. Core document for further details.
Include embedded turtle or RDF/XML in the output (option: embedded_rdf; values: true, false; default: true )
The Turtle specification provides a syntax to add Turtle content to any HTML file via the