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package Catmandu::RDF; |
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532235
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use namespace::clean; |
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use Catmandu::Sane; |
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use Catmandu::Util qw(is_instance); |
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use Moo::Role; |
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use RDF::NS; |
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13648
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our $VERSION = '0.31'; |
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our %TYPE_ALIAS = ( |
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Ttl => 'Turtle', |
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N3 => 'Notation3', |
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Xml => 'RDFXML', |
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XML => 'RDFXML', |
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Json => 'RDFJSON', |
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); |
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has type => ( |
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is => 'ro', |
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coerce => sub { my $t = ucfirst($_[0]); $TYPE_ALIAS{$t} // $t }, |
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); |
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has ns => ( |
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is => 'ro', |
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default => sub { RDF::NS->new }, |
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coerce => sub { |
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return $_[0] if is_instance($_[0],'RDF::NS'); |
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return $_[0] if !$_[0]; |
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return RDF::NS->new($_[0]); |
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}, |
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handles => ['uri'], |
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); |
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1; |
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__END__ |
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=encoding utf8 |
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40
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=head1 NAME |
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Catmandu::RDF - Modules for handling RDF data within the Catmandu framework |
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=begin markdown |
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# STATUS |
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48
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[](https://travis-ci.org/LibreCat/Catmandu-RDF) |
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[](https://coveralls.io/r/LibreCat/Catmandu-RDF) |
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[](http://cpants.cpanauthors.org/dist/Catmandu-RDF) |
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52
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=end markdown |
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54
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=head1 SYNOPSIS |
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56
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Command line client C<catmandu>: |
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58
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catmandu convert RDF --url http://dx.doi.org/10.2474/trol.7.147 |
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--fix 'aref_query(dct_title,title)' to YAML |
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61
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catmandu convert RDF --file rdfdump.nt to RDF --type turtle |
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63
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See documentation of modules for more examples. |
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65
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=head1 DESCRIPTION |
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67
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Catmandu::RDF contains modules for handling RDF data within the L<Catmandu> |
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68
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framework. RDF data is encoded/decoded in L<aREF|http://gbv.github.io/aREF/> as |
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implemented with L<RDF::aREF>. Please keep in mind that RDF is a graph-based |
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70
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data structuring format with specialized technologies such as SPARQL and triple |
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71
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stores. Using Catmandu::RDF to transform RDF to RDF (e.g. conversion from one |
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RDF serialization to another) is possible but probably less performant than |
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decent RDF tools. Catmandu::RDF, however, is more conventient to convert |
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between RDF and other data formats. |
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76
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=head1 AVAILABLE MODULES |
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=over |
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=item L<Catmandu::Exporter::RDF> |
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81
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82
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Serialize RDF data (as RDF/XML, RDF/JSON, Turtle, NTriples, RDFa...) |
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84
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=item L<Catmandu::Importer::RDF> |
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86
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Parse RDF data (RDF/XML, RDF/JSON, Turtle, NTriples...) or import from a SPARQL |
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endpoint |
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=item L<Catmandu::Fix::aref_query> |
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91
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Copy values of RDF data in aREF format to a new field |
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92
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93
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=back |
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95
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=head1 SEE ALSO |
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97
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This module is based on L<Catmandu>, L<RDF::aREF>, L<RDF::Trine>, and |
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98
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L<RDF::NS>. |
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100
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=head1 COPYRIGHT AND LICENSE |
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101
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102
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Copyright Jakob Voß, 2014- |
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104
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This is free software; you can redistribute it and/or modify it under the same |
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105
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terms as the Perl 5 programming language system itself. |
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107
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=head1 CONTRIBUTORS |
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108
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109
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Jakob Voß, Patrick Hochstenbach |
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110
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111
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=cut |