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RDFStore::Literal(3) User Contributed Perl Documentation RDFStore::Literal(3)

RDFStore::Literal - An RDF Literal Node implementation

        use RDFStore::Literal;
        my $literal = new RDFStore::Literal('Tim Berners-Lee');
        my $literal1 = new RDFStore::Literal('Today is a sunny day, again :)');

        print $literal->toString." is ";
        print "not"
                unless $literal->equals($literal1);
        print " equal to ".$literal1->toString."\n";

An RDF Literal Node implementation using Storable(3). A Literal object can either contain plain (utf8) strings. Such an implementation allows to create really generic RDF statements about Perl data-structures or objects for example. Generally an RDFStore::Literal can be thought like an atomic perl scalar. XML well-formed literal values are supported simply by storing the resulting utf8 bytes into a perl scalar; none methods are being provided tomanage literals as XML (e.g. SAX2 events and stuff like that)

new ( LITERAL )
This is a class method, the constructor for RDFStore::Literal. The only parameter passed is either a plain perl scalar (LITERAL)
getParseType
Return the parseType of the RDF Literal; possible values are Literal or Resource (default).
getLang
Return the language of the RDF Literal eventually coming from xml:lang attribute on parsing.
getDataType
Return the RDFStore::Resource representing the XMLSchema data type of the RDF Literal.
getLabel
Return the literal text of the node.
getDigest
Return a Cryptographic Digest (SHA-1 by default) of the RDF Literal; the actual digest message is guranteed to be different for URI representing RDF Resources or RDF Literals.
equals
Compare two literals.

RDFStore::RDFNode(3)

 http://www.w3.org/TR/rdf-primer/

 http://www.w3.org/TR/rdf-mt

 http://www.w3.org/TR/rdf-syntax-grammar/

 http://www.w3.org/TR/rdf-schema/

 http://www.w3.org/TR/1999/REC-rdf-syntax-19990222 (obsolete)

The language of the literal as recently specified by the RDF Core WG is not supported and the typed literals are not implemented; the latter is due mainly because perl is an untyped language and perhaps such data-typing abstractions should fit in a higher level application specific API.

        Alberto Reggiori <areggiori@webweaving.org>

Hey! The above document had some coding errors, which are explained below:
Around line 121:
You forgot a '=back' before '=head1'
2006-06-19 perl v5.32.1

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