SIMPLE SOLUTIONS

RDF::TRINE::NODE::LITERAL(3PM) - Linux man page online | Library functions

RDF Node class for literals.

Chapter
2018-01-05
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 1.019

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" Returns a new literal node object whose value is in canonical form (where applicable). "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 "<@cpan.org>"
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 v5.26.1 2018-01-05 RDF::Trine::Node::Literal(3pm)
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