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.\" ========================================================================
.\"
.IX Title "HTML::Embedded::Turtle 3pm"
.TH HTML::Embedded::Turtle 3pm "2013-08-01" "perl v5.14.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
HTML::Embedded::Turtle \- embedding RDF in HTML the crazy way
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& use HTML::Embedded::Turtle;
\&
\& my $het = HTML::Embedded::Turtle\->new($html, $base_uri);
\& foreach my $graph ($het\->endorsements)
\& {
\& my $model = $het\->graph($graph);
\&
\& # $model is an RDF::Trine::Model. Do something with it.
\& }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\s-1RDF\s0 can be embedded in (X)HTML using simple
.Ve
.PP
The rel=\*(L"meta\*(R" stuff is parsed using an RDFa parser, so equivalent RDFa
works too.
.PP
This module parses \s-1HTML\s0 files containing graphs like these, and allows
you to access them each individually; as a union of all graphs on the page;
or as a union of just the endorsed graphs.
.PP
Despite the module name, this module supports a variety of
.Ve
.PP
Languages supported are (case insensitive): \*(L"Turtle\*(R", \*(L"NTriples\*(R", \*(L"\s-1RDFJSON\s0\*(R",
\&\*(L"\s-1RDFXML\s0\*(R" and \*(L"Notation3\*(R".
.SS "Constructor"
.IX Subsection "Constructor"
.ie n .IP """HTML::Embedded::Turtle\->new($markup, $base_uri, \e%opts)""" 4
.el .IP "\f(CWHTML::Embedded::Turtle\->new($markup, $base_uri, \e%opts)\fR" 4
.IX Item "HTML::Embedded::Turtle->new($markup, $base_uri, %opts)"
Create a new object. \f(CW$markup\fR is the \s-1HTML\s0 or \s-1XHTML\s0 markup to parse;
\&\f(CW$base_uri\fR is the base \s-1URI\s0 to use for relative references.
.Sp
Options include:
.RS 4
.IP "\(bu" 4
\&\fBmarkup\fR
.Sp
Choose which parser to use: 'html' or 'xml'. The former chooses
HTML::HTML5::Parser, which can handle tag soup; the latter chooses
XML::LibXML, which cannot. Defaults to 'html'.
.IP "\(bu" 4
\&\fBrdfa_options\fR
.Sp
A set of options to be parsed to RDF::RDFa::Parser when looking for
endorsements. See RDF::RDFa::Parser::Config. The default is
probably sensible.
.RE
.RS 4
.RE
.SS "Public Methods"
.IX Subsection "Public Methods"
.ie n .IP """union_graph""" 4
.el .IP "\f(CWunion_graph\fR" 4
.IX Item "union_graph"
A union graph of all graphs found in the document, as an RDF::Trine::Model.
Note that the returned model contains quads.
.ie n .IP """endorsed_union_graph""" 4
.el .IP "\f(CWendorsed_union_graph\fR" 4
.IX Item "endorsed_union_graph"
A union graph of only the endorsed graphs, as an RDF::Trine::Model.
Note that the returned model contains quads.
.ie n .IP """graph($name)""" 4
.el .IP "\f(CWgraph($name)\fR" 4
.IX Item "graph($name)"
A single graph from the page.
.ie n .IP """graphs""" 4
.el .IP "\f(CWgraphs\fR" 4
.IX Item "graphs"
.PD 0
.ie n .IP """all_graphs""" 4
.el .IP "\f(CWall_graphs\fR" 4
.IX Item "all_graphs"
.PD
A hashref where the keys are graph names and the values are
RDF::Trine::Models. Some graph names will be URIs, and others
may be blank nodes (e.g. \*(L"_:foobar\*(R").
.Sp
\&\f(CW\*(C`graphs\*(C'\fR and \f(CW\*(C`all_graphs\*(C'\fR are aliases for each other.
.ie n .IP """endorsed_graphs""" 4
.el .IP "\f(CWendorsed_graphs\fR" 4
.IX Item "endorsed_graphs"
Like \f(CW\*(C`all_graphs\*(C'\fR, but only returns endorsed graphs. Note that
all endorsed graphs will have graph names that are URIs.
.ie n .IP """endorsements""" 4
.el .IP "\f(CWendorsements\fR" 4
.IX Item "endorsements"
Returns a list of URIs which are the names of endorsed graphs. Note that
the presence of a \s-1URI\s0 \f(CW$x\fR in this list does not imply that
\&\f(CW\*(C`$het\->graph($x)\*(C'\fR will be defined.
.ie n .IP """dom""" 4
.el .IP "\f(CWdom\fR" 4
.IX Item "dom"
Returns the page \s-1DOM\s0.
.ie n .IP """uri""" 4
.el .IP "\f(CWuri\fR" 4
.IX Item "uri"
Returns the page \s-1URI\s0.
.SH "BUGS"
.IX Header "BUGS"
Please report any bugs to .
.PP
Please forgive me in advance for inflicting this module upon you.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
RDF::RDFa::Parser, RDF::Trine, RDF::TriN3.
.PP
.
.SH "AUTHOR"
.IX Header "AUTHOR"
Toby Inkster .
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright (C) 2010\-2011, 2013 by Toby Inkster.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
.SH "DISCLAIMER OF WARRANTIES"
.IX Header "DISCLAIMER OF WARRANTIES"
\&\s-1THIS\s0 \s-1PACKAGE\s0 \s-1IS\s0 \s-1PROVIDED\s0 \*(L"\s-1AS\s0 \s-1IS\s0\*(R" \s-1AND\s0 \s-1WITHOUT\s0 \s-1ANY\s0 \s-1EXPRESS\s0 \s-1OR\s0 \s-1IMPLIED\s0
\&\s-1WARRANTIES\s0, \s-1INCLUDING\s0, \s-1WITHOUT\s0 \s-1LIMITATION\s0, \s-1THE\s0 \s-1IMPLIED\s0 \s-1WARRANTIES\s0 \s-1OF\s0
\&\s-1MERCHANTIBILITY\s0 \s-1AND\s0 \s-1FITNESS\s0 \s-1FOR\s0 A \s-1PARTICULAR\s0 \s-1PURPOSE\s0.