1RDF::Trine::Node(3) User Contributed Perl Documentation RDF::Trine::Node(3)
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6 RDF::Trine::Node - Base class for RDF Nodes
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9 This document describes RDF::Trine::Node version 1.019
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12 "ntriples_escape ( $value )"
13 Returns the passed string value with special characters (control
14 characters, Unicode, etc.) escaped, suitable for printing inside an
15 N-Triples or Turtle encoded literal.
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18 "is_node"
19 Returns true if this object is a RDF node, false otherwise.
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21 "is_nil"
22 Returns true if this object is the nil-valued node.
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24 "is_blank"
25 Returns true if this RDF node is a blank node, false otherwise.
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27 "is_resource"
28 Returns true if this RDF node is a resource, false otherwise.
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30 "is_literal"
31 Returns true if this RDF node is a literal, false otherwise.
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33 "is_variable"
34 Returns true if this RDF node is a variable, false otherwise.
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36 "as_string"
37 Returns the node in a string form.
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39 "as_ntriples"
40 Returns the node in a string form suitable for NTriples
41 serialization.
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43 "sse"
44 Returns the SSE serialization of the node.
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46 "equal ( $node )"
47 Returns true if the two nodes are equal, false otherwise.
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49 "compare ( $node_a, $node_b )"
50 Returns -1, 0, or 1 if $node_a sorts less than, equal to, or
51 greater than $node_b in the defined SPARQL ordering, respectively.
52 This function may be used as the function argument to "<sort">.
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54 "as_hashref"
55 Returns a hashref representing the node in an RDF/JSON-like manner.
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57 See "as_hashref" at RDF::Trine::Model for full documentation of the
58 hashref format.
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60 "from_sse ( $string, $context )"
61 Parses the supplied SSE-encoded string and returns a
62 RDF::Trine::Node object.
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65 Please report any bugs or feature requests to through the GitHub web
66 interface at <https://github.com/kasei/perlrdf/issues>.
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69 Gregory Todd Williams "<gwilliams@cpan.org>"
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72 Copyright (c) 2006-2012 Gregory Todd Williams. This program is free
73 software; you can redistribute it and/or modify it under the same terms
74 as Perl itself.
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78perl v5.36.0 2022-07-22 RDF::Trine::Node(3)