1RDF::Trine::Node::LiterUasle(r3)Contributed Perl DocumenRtDaFt:i:oTnrine::Node::Literal(3)
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NAME

6       RDF::Trine::Node::Literal - RDF Node class for literals
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VERSION

9       This document describes RDF::Trine::Node::Literal version 1.019
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METHODS

12       Beyond the methods documented below, this class inherits methods from
13       the RDF::Trine::Node class.
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15       "new ( $string, $lang, $datatype, $canonical_flag )"
16           Returns a new Literal structure.
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18       "literal_value"
19           Returns the string value of the literal.
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21       "literal_value_language"
22           Returns the language tag of the ltieral.
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24       "literal_datatype"
25           Returns the datatype of the literal.
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27       "value"
28           Returns the literal value.
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30       "sse"
31           Returns the SSE string for this literal.
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33       "as_string"
34           Returns a string representation of the node.
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36       "as_ntriples"
37           Returns the node in a string form suitable for NTriples
38           serialization.
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40       "type"
41           Returns the type string of this node.
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43       "has_language"
44           Returns true if this literal is language-tagged, false otherwise.
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46       "has_datatype"
47           Returns true if this literal is datatyped, false otherwise.
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49       "equal ( $node )"
50           Returns true if the two nodes are equal, false otherwise.
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52       "canonicalize"
53           Returns a new literal node object whose value is in canonical form
54           (where applicable).
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56       "canonicalize_literal_value ( $string, $datatype, $warn )"
57           If $datatype is a recognized datatype, returns the canonical
58           lexical representation of the value $string. Otherwise returns
59           $string.
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61           Currently, xsd:integer, xsd:decimal, and xsd:boolean are
62           canonicalized.  Additionally, invalid lexical forms for xsd:float,
63           xsd:double, and xsd:dateTime will trigger a warning.
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65       "is_canonical_lexical_form"
66       "is_valid_lexical_form"
67           Returns true if the node is of a recognized datatype and has a
68           valid lexical form for that datatype. If the lexical form is
69           invalid, returns false. If the datatype is unrecognized, returns
70           zero-but-true.
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72       "is_numeric_type"
73           Returns true if the literal is a known (xsd) numeric type.
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75       "numeric_value"
76           Returns the numeric value of the literal (even if the literal isn't
77           a known numeric type.
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BUGS

80       Please report any bugs or feature requests to through the GitHub web
81       interface at <https://github.com/kasei/perlrdf/issues>.
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AUTHOR

84       Gregory Todd Williams  "<gwilliams@cpan.org>"
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87       Copyright (c) 2006-2012 Gregory Todd Williams. This program is free
88       software; you can redistribute it and/or modify it under the same terms
89       as Perl itself.
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93perl v5.36.0                      2023-01-20      RDF::Trine::Node::Literal(3)
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