Gregory Todd Williams > RDF-Trine-1.009 > RDF::Trine::Node

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Module Version: 1.009   Source  

NAME ^

RDF::Trine::Node - Base class for RDF Nodes

VERSION ^

This document describes RDF::Trine::Node version 1.009

FUNCTIONS ^

ntriples_escape ( $value )

Returns the passed string value with special characters (control characters, Unicode, etc.) escaped, suitable for printing inside an N-Triples or Turtle encoded literal.

METHODS ^

is_node

Returns true if this object is a RDF node, false otherwise.

is_nil

Returns true if this object is the nil-valued node.

is_blank

Returns true if this RDF node is a blank node, false otherwise.

is_resource

Returns true if this RDF node is a resource, false otherwise.

is_literal

Returns true if this RDF node is a literal, false otherwise.

is_variable

Returns true if this RDF node is a variable, false otherwise.

as_string

Returns the node in a string form.

as_ntriples

Returns the node in a string form suitable for NTriples serialization.

sse

Returns the SSE serialization of the node.

equal ( $node )

Returns true if the two nodes are equal, false otherwise.

compare ( $node_a, $node_b )

Returns -1, 0, or 1 if $node_a sorts less than, equal to, or greater than $node_b in the defined SPARQL ordering, respectively. This function may be used as the function argument to <sort>.

from_sse ( $string, $context )

Parses the supplied SSE-encoded string and returns a RDF::Trine::Node object.

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.

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