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RDF::RDFa::Generator(3pm) User Contributed Perl Documentation RDF::RDFa::Generator(3pm)

NAME

RDF::RDFa::Generator - generate some data in RDFa

DESCRIPTION

Constructor

"$gen = RDF::RDFa::Generator->new(style => $style, %options)"
Creates a new generator object. $style is one of the following case-sensitive strings: 'HTML::Head' (the default), 'HTML::Hidden' or 'HTML::Pretty'. You can also construct an object like this: 

  $gen = RDF::RDFa::Generator::HTML::Head->new(%options);

Options include:

  • base - the base URL where the output data will be published. This allows in some cases for the generated RDFa to include relative URIs.
  • data_context - if non-null, a URI (string) which indicates the context (named graph) containing the data to generate RDFa for.
  • namespaces - a {prefix=>uri} hashref of preferred CURIE prefixes.
  • ns - a {uri=>prefix} hashref of preferred CURIE prefixes. DEPRECATED - use namespaces instead.
  • prefix_attr - use the @prefix attribute for CURIE prefixes (RDFa 1.1 only). Boolean, defaults to false.
  • safe_xml_literals - prevents XML literals from injecting arbitrary XHTML into the output. Boolean, defaults to FALSE.
  • title - assign a <title> element for generated XHTML documents.
  • version - set generated RDFa version. Valid values are '1.0' (the default) or '1.1'.

Public Methods

"$gen->create_document($model)"
Creates a new RDFa file containing triples. $model is an RDF::Trine::Model object providing the triples. Returns an XML::LibXML::Document object suitable for serialising using its "toString" method.

If you're planning on serving the RDFa with the text/html media type, then it is recommended that you use HTML::HTML5::Writer to serialise the document rather than "toString".

Can also be called as a class method:

 $document = RDF::RDFa::Generator->create_document($model)
 # Same as:
 # $document = RDF::RDFa::Generator->new->create_document($model)
"$gen->inject_document($document, $model)"
Injects an existing document with triples. $document is an XML::LibXML::Document to inject, or a well-formed XML string. $model is an RDF::Trine::Model object providing the triples. Returns an XML::LibXML::Document object suitable for serialising using its "toString" method.

See "create_document" for information about serving the RDFa with the text/html media type.

Can also be called as a class method. See "create_document" for details.

"$gen->nodes($model)"
Provides triple-laden XML::LibXML::Elements to be added to a document. $model is an RDF::Trine::Model object providing the triples. If called in list context, returns a list of XML::LibXML::Element objects which can be added to a document; otherwise returns an XML::LibXML::NodeList containing a list of such elements.

Can also be called as a class method. See "create_document" for details.

The HTML::Pretty generator can be passed a couple of additional options:

  $gen->nodes($model, notes_heading=>'Additional Info', notes=>\@notes);

The notes are a list of RDF::RDFa::Generator::HTML::Pretty::Note objects which are added as notes to the end of each subject's data.

Additionally the methods "serialize_model_to_file", "serialize_model_to_string", "serialize_iterator_to_file" and "serialize_iterator_to_string" are provided for compatibility with the RDF::Trine::Serializer interface.

BUGS

Please report any bugs to <http://rt.cpan.org/>.

SEE ALSO

HTML::HTML5::Writer, XML::LibXML, RDF::RDFa::Parser, RDF::Trine, RDF::Prefixes.

<http://www.perlrdf.org/>.

AUTHOR

Toby Inkster <tobyink@cpan.org>.

COPYRIGHT AND LICENCE

Copyright (C) 2010 by Toby Inkster

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8 or, at your option, any later version of Perl 5 you may have available.

Icons

RDF::RDFa::Generator::HTML::Pretty uses the FamFamFam Silk icons; see <http://famfamfam.com/lab/icons/silk/>.
2016-12-26 perl v5.24.1