/usr/share/perl5/CQL/TermNode.pm is in libcql-parser-perl 1.12-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | package CQL::TermNode;
use strict;
use warnings;
use base qw( CQL::Node );
use Carp qw( croak );
use CQL::Utils qw( indent xq renderPrefixes );
=head1 NAME
CQL::TermNode - represents a terminal Node in a CQL Parse Tree
=head1 SYNOPSIS
=head1 DESCRIPTION
CQL::TermNode represents a terminal in a CQL parse tree. A term node
consists of the string itself with optional qualifier string and relation.
Examples could include:
=over 4
=item * george
=item * dc.creator=george
=back
=head1 METHODS
=head2 new()
The constructor which has must have at least a term attribute, and
can also include optional qualifier and modifier terms.
=cut
sub new {
my ($class,%args) = @_;
croak( "must supply term parameter" ) if ! exists( $args{term} );
return bless \%args, ref($class) || $class;
}
=head2 getQualifier()
Get the qualifier in the terminal.
=cut
sub getQualifier {
return shift->{qualifier};
}
=head2 getRelation()
Get the relation in the terminal.
=cut
sub getRelation {
return shift->{relation};
}
=head2 getTerm()
Get the actual term string in the terminal.
=cut
sub getTerm {
return shift->{term};
}
=head2 toCQL()
Returns a CQL representation of the terminal node.
=cut
sub toCQL {
my $self = shift;
my $qualifier = maybeQuote( $self->getQualifier() );
my $term = maybeQuote( $self->getTerm() );
my $relation = $self->getRelation();
my $cql;
if ( $qualifier and $qualifier !~ /srw\.serverChoice/i ) {
$cql = join( ' ', $qualifier, $relation->toCQL(), $term);
} else {
$cql = $term;
}
return $cql;
}
=head2 toSwish()
=cut
sub toSwish {
my $self = shift;
my $qualifier = maybeQuote( $self->getQualifier() );
my $term = maybeQuote( $self->getTerm() );
my $relation = $self->getRelation();
my $swish;
if ( $qualifier and $qualifier !~ /srw\.serverChoice/i ) {
$swish = join( ' ', $qualifier, $relation->toSwish(), $term );
} else {
$swish = $term;
}
return $swish;
}
=head2 toXCQL()
=cut
sub toXCQL {
my ($self,$level,@prefixes) = @_;
$level = 0 unless $level;
my $xml =
indent($level) . "<searchClause>\n" .
renderPrefixes($level+1,@prefixes) .
indent($level+1) . "<index>".xq($self->getQualifier())."</index>\n";
if ( $self->getRelation() ) {
$xml .= $self->getRelation()->toXCQL($level+1);
}
$xml .=
indent($level+1) . "<term>" . xq($self->getTerm()) . "</term>\n" .
indent($level) . "</searchClause>\n";
return $self->addNamespace( $level, $xml );
}
=head2 toLucene()
=cut
sub toLucene {
my $self = shift;
my $qualifier = maybeQuote( $self->getQualifier() );
my $term = maybeQuote( $self->getTerm() );
my $relation = $self->getRelation();
my $query;
if ( $qualifier and $qualifier !~ /srw\.serverChoice/i ) {
my $base = $relation->getBase();
my @modifiers = $relation->getModifiers();
foreach my $m ( @modifiers ) {
if( $m->[ 1 ] eq 'fuzzy' ) {
$term = "$term~";
}
}
if( $base eq '=' ) {
$base = ':';
}
else {
croak( "Lucene doesn't support relations other than '='" );
}
return "$qualifier$base$term";
}
else {
return $term;
}
}
sub maybeQuote {
my $str = shift;
return if ! defined $str;
if ( $str =~ m|[" \t=<>/()]| ) {
$str =~ s/"/\\"/g;
$str = qq("$str");
}
return $str;
}
1;
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