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656
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use v5.14; |
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211
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2
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use warnings; |
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2152
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=head1 NAME |
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6
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Attean::Blank - RDF blank nodes |
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=head1 VERSION |
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10
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This document describes Attean::Blank version 0.033 |
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12
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=head1 SYNOPSIS |
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14
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use v5.14; |
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15
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use Attean; |
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16
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my $term = Attean::Blank->new('b1'); |
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$term->ntriples_string; # _:b1 |
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=head1 DESCRIPTION |
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The Attean::Blank class represents RDF blank nodes. |
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22
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It conforms to the L<Attean::API::Blank|Attean::API::Term> role. |
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23
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24
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=head1 ROLES |
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26
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This role consumes L<Attean::API::Blank>, which provides the following methods: |
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27
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28
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=over 4 |
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29
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30
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=item C<< value >> |
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31
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32
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=back |
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34
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=cut |
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35
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36
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use Moo; |
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37
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50
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50
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280
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use Types::Standard qw(Str); |
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50
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110
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50
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274
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38
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50
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50
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16332
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use UUID::Tiny ':std'; |
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50
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118
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50
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365
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39
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50
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50
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24411
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use namespace::clean; |
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50
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107
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50
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8732
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40
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50
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50
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354
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50
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99
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50
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414
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41
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has 'value' => (is => 'ro', isa => Str, required => 1); |
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42
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has 'ntriples_string' => (is => 'ro', isa => Str, lazy => 1, builder => '_ntriples_string'); |
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43
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44
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with 'Attean::API::Blank'; |
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45
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46
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around BUILDARGS => sub { |
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47
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my $orig = shift; |
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48
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my $class = shift; |
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49
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50
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if (scalar(@_) == 0) { |
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51
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my $uuid = unpack('H*', create_uuid()); |
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52
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return $class->$orig(value => 'b' . $uuid); |
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53
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} elsif (scalar(@_) == 1) { |
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54
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my $value = shift // ''; |
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55
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return $class->$orig(value => $value); |
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56
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} |
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57
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return $class->$orig(@_); |
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58
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}; |
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59
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60
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my $self = shift; |
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61
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return '_:' . $self->value; |
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62
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172
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172
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7947
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} |
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63
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172
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2392
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} |
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64
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65
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1; |
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66
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67
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68
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=head1 BUGS |
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69
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70
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Please report any bugs or feature requests to through the GitHub web interface |
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71
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at L<https://github.com/kasei/attean/issues>. |
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72
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73
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=head1 SEE ALSO |
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74
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75
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76
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77
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=head1 AUTHOR |
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78
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79
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|
|
Gregory Todd Williams C<< <gwilliams@cpan.org> >> |
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80
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81
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=head1 COPYRIGHT |
|
82
|
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83
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Copyright (c) 2014--2022 Gregory Todd Williams. |
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84
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|
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This program is free software; you can redistribute it and/or modify it under |
|
85
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the same terms as Perl itself. |
|
86
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87
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=cut |