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36
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use 5.006; |
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7
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2
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13
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use strict; |
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39
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3
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use warnings; |
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25
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2
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140
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4
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5
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package LINQ::Field; |
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7
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our $AUTHORITY = 'cpan:TOBYINK'; |
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our $VERSION = '0.001'; |
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10
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2
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2
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12
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use Class::Tiny qw( index name value params ); |
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3
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2
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22
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11
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12
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sub BUILD { |
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84
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84
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1
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2899
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my ( $self ) = ( shift ); |
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15
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84
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100
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189
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if ( not $self->{params} ) { |
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7
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12
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$self->{params} = {}; |
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} |
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19
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84
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100
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173
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if ( not defined $self->{name} ) { |
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80
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100
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100
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479
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if ( defined $self->{params}{as} ) { |
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100
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21
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14
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35
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$self->{name} = $self->{params}{as}; |
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} |
23
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elsif ( !ref $self->{value} and $self->{value} =~ /\A[^\W0-9]\w*\z/ ) { |
24
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63
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178
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$self->{name} = $self->{value}; |
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} |
26
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else { |
27
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3
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14
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$self->{name} = sprintf( '_%d', $self->{index} ); |
28
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} |
29
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} #/ if ( not defined $self...) |
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31
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} #/ sub BUILD |
32
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33
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sub getter { |
34
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64
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64
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1
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837
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my ( $self ) = @_; |
35
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64
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100
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189
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$self->{getter} ||= $self->_build_getter; |
36
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} |
37
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38
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sub _build_getter { |
39
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59
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59
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79
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my ( $self ) = @_; |
40
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41
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59
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965
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my $attr = $self->value; |
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43
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59
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100
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322
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if ( ref( $attr ) eq 'CODE' ) { |
44
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4
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17
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return $attr; |
45
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} |
46
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47
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55
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210
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require Scalar::Util; |
48
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49
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return sub { |
50
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106
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106
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267
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my $blessed = Scalar::Util::blessed( $_ ); |
51
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106
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100
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100
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386
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if ( ( $blessed || '' ) =~ /\AObject::Adhoc::__ANON__::/ ) { |
52
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86
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126
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$blessed = undef; |
53
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} |
54
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106
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100
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578
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scalar( $blessed ? $_->$attr : $_->{$attr} ); |
55
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55
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386
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}; |
56
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} #/ sub _build_getter |
57
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58
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1; |
59
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60
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__END__ |
61
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62
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=pod |
63
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64
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=encoding utf-8 |
65
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66
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=head1 NAME |
67
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68
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LINQ::Field - represents a single field in a LINQ::FieldSet |
69
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70
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=head1 DESCRIPTION |
71
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72
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See L<LINQ::FieldSet> for details. |
73
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74
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This is used internally by LINQ and you probably don't need to know about it |
75
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unless you're writing very specific extensions for LINQ. |
76
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77
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=head1 CONSTRUCTOR |
78
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79
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=over |
80
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81
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=item C<< new( ARGSHASH ) >> |
82
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83
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=back |
84
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85
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=begin trustme |
86
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87
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=item BUILD |
88
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89
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=end trustme |
90
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91
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=head1 METHODS |
92
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93
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=over |
94
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95
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=item C<index> |
96
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97
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The order of a field within a fieldset. Starts at zero. |
98
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99
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=item C<name> |
100
|
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101
|
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The name of a field. |
102
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103
|
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=item C<value> |
104
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105
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The hashref key or method name used to find the value for the field from |
106
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|
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a hashref or object; or a coderef which will get the value from C<< $_ >>. |
107
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108
|
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=item C<params> |
109
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110
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Additional metadata for the field. |
111
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112
|
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=item C<getter> |
113
|
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114
|
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A coderef which will get the value of a field from C<< $_ >>. |
115
|
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116
|
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=back |
117
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118
|
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=head1 BUGS |
119
|
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|
120
|
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|
Please report any bugs to |
121
|
|
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|
|
L<http://rt.cpan.org/Dist/Display.html?Queue=LINQ>. |
122
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123
|
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|
=head1 SEE ALSO |
124
|
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125
|
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|
|
L<LINQ::FieldSet>. |
126
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127
|
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=head1 AUTHOR |
128
|
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129
|
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|
|
Toby Inkster E<lt>tobyink@cpan.orgE<gt>. |
130
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131
|
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=head1 COPYRIGHT AND LICENCE |
132
|
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133
|
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This software is copyright (c) 2021 by Toby Inkster. |
134
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135
|
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|
|
This is free software; you can redistribute it and/or modify it under |
136
|
|
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|
|
the same terms as the Perl 5 programming language system itself. |
137
|
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138
|
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|
=head1 DISCLAIMER OF WARRANTIES |
139
|
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140
|
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|
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED |
141
|
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|
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
142
|
|
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|
|
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |