RDF::Trine::Node::Nil(3pm) User Contributed Perl Documentation RDF::Trine::Node::Nil(3pm)NAME
RDF::Trine::Node::Nil - RDF Node class for the nil node
VERSION
This document describes RDF::Trine::Node::Nil version 1.000
METHODS
Beyond the methods documented below, this class inherits methods from the RDF::Trine::Node class.
"new ()"
Returns the nil-valued node.
"is_nil"
Returns true if this object is the nil-valued node.
"sse"
Returns the SSE string for this nil node.
"as_ntriples"
Returns the N-Triples serialization of the nil node's IRI <tag:gwilliams@cpan.org,2010-01-01:RT:NIL>.
"type"
Returns the type string of this node.
"value"
Returns the empty string.
"equal ( $node )"
Returns true if the two nodes are equal, false otherwise.
BUGS
Please report any bugs or feature requests to through the GitHub web interface at <https://github.com/kasei/perlrdf/issues>.
AUTHOR
Gregory Todd Williams "<gwilliams@cpan.org>"
COPYRIGHT
Copyright (c) 2006-2012 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms
as Perl itself.
perl v5.14.2 2012-06-29 RDF::Trine::Node::Nil(3pm)
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RDF::Trine::Node::Literal(3pm) User Contributed Perl Documentation RDF::Trine::Node::Literal(3pm)NAME
RDF::Trine::Node::Literal - RDF Node class for literals
VERSION
This document describes RDF::Trine::Node::Literal version 1.000
METHODS
Beyond the methods documented below, this class inherits methods from the RDF::Trine::Node class.
"new ( $string, $lang, $datatype, $canonical_flag )"
Returns a new Literal structure.
"literal_value"
Returns the string value of the literal.
"literal_value_language"
Returns the language tag of the ltieral.
"literal_datatype"
Returns the datatype of the literal.
"value"
Returns the literal value.
"sse"
Returns the SSE string for this literal.
"as_string"
Returns a string representation of the node.
"as_ntriples"
Returns the node in a string form suitable for NTriples serialization.
"type"
Returns the type string of this node.
"has_language"
Returns true if this literal is language-tagged, false otherwise.
"has_datatype"
Returns true if this literal is datatyped, false otherwise.
"equal ( $node )"
Returns true if the two nodes are equal, false otherwise.
"canonicalize_literal_value ( $string, $datatype, $warn )"
If $datatype is a recognized datatype, returns the canonical lexical representation of the value $string. Otherwise returns $string.
Currently, xsd:integer, xsd:decimal, and xsd:boolean are canonicalized. Additionally, invalid lexical forms for xsd:float, xsd:double,
and xsd:dateTime will trigger a warning.
"is_canonical_lexical_form"
"is_valid_lexical_form"
Returns true if the node is of a recognized datatype and has a valid lexical form for that datatype. If the lexical form is invalid,
returns false. If the datatype is unrecognized, returns zero-but-true.
"is_numeric_type"
Returns true if the literal is a known (xsd) numeric type.
"numeric_value"
Returns the numeric value of the literal (even if the literal isn't a known numeric type.
BUGS
Please report any bugs or feature requests to through the GitHub web interface at <https://github.com/kasei/perlrdf/issues>.
AUTHOR
Gregory Todd Williams "<gwilliams@cpan.org>"
COPYRIGHT
Copyright (c) 2006-2012 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms
as Perl itself.
perl v5.14.2 2012-06-29 RDF::Trine::Node::Literal(3pm)