/usr/share/perl5/XML/XPath/NodeSet.pm is in libxml-xpath-perl 1.13-7.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 | # $Id: NodeSet.pm,v 1.17 2002/04/24 13:06:08 matt Exp $
package XML::XPath::NodeSet;
use strict;
use XML::XPath::Boolean;
use overload
'""' => \&to_literal,
'bool' => \&to_boolean,
;
sub new {
my $class = shift;
bless [], $class;
}
sub sort {
my $self = CORE::shift;
@$self = CORE::sort { $a->get_global_pos <=> $b->get_global_pos } @$self;
return $self;
}
sub pop {
my $self = CORE::shift;
CORE::pop @$self;
}
sub push {
my $self = CORE::shift;
my (@nodes) = @_;
CORE::push @$self, @nodes;
}
sub append {
my $self = CORE::shift;
my ($nodeset) = @_;
CORE::push @$self, $nodeset->get_nodelist;
}
sub shift {
my $self = CORE::shift;
CORE::shift @$self;
}
sub unshift {
my $self = CORE::shift;
my (@nodes) = @_;
CORE::unshift @$self, @nodes;
}
sub prepend {
my $self = CORE::shift;
my ($nodeset) = @_;
CORE::unshift @$self, $nodeset->get_nodelist;
}
sub size {
my $self = CORE::shift;
scalar @$self;
}
sub get_node { # uses array index starting at 1, not 0
my $self = CORE::shift;
my ($pos) = @_;
$self->[$pos - 1];
}
sub getRootNode {
my $self = CORE::shift;
return $self->[0]->getRootNode;
}
sub get_nodelist {
my $self = CORE::shift;
@$self;
}
sub to_boolean {
my $self = CORE::shift;
return (@$self > 0) ? XML::XPath::Boolean->True : XML::XPath::Boolean->False;
}
sub string_value {
my $self = CORE::shift;
return '' unless @$self;
return $self->[0]->string_value;
}
sub to_literal {
my $self = CORE::shift;
return XML::XPath::Literal->new(
join('', map { $_->string_value } @$self)
);
}
sub to_number {
my $self = CORE::shift;
return XML::XPath::Number->new(
$self->to_literal
);
}
1;
__END__
=head1 NAME
XML::XPath::NodeSet - a list of XML document nodes
=head1 DESCRIPTION
An XML::XPath::NodeSet object contains an ordered list of nodes. The nodes
each take the same format as described in L<XML::XPath::XMLParser>.
=head1 SYNOPSIS
my $results = $xp->find('//someelement');
if (!$results->isa('XML::XPath::NodeSet')) {
print "Found $results\n";
exit;
}
foreach my $context ($results->get_nodelist) {
my $newresults = $xp->find('./other/element', $context);
...
}
=head1 API
=head2 new()
You will almost never have to create a new NodeSet object, as it is all
done for you by XPath.
=head2 get_nodelist()
Returns a list of nodes. See L<XML::XPath::XMLParser> for the format of
the nodes.
=head2 string_value()
Returns the string-value of the first node in the list.
See the XPath specification for what "string-value" means.
=head2 to_literal()
Returns the concatenation of all the string-values of all
the nodes in the list.
=head2 get_node($pos)
Returns the node at $pos. The node position in XPath is based at 1, not 0.
=head2 size()
Returns the number of nodes in the NodeSet.
=head2 pop()
Equivalent to perl's pop function.
=head2 push(@nodes)
Equivalent to perl's push function.
=head2 append($nodeset)
Given a nodeset, appends the list of nodes in $nodeset to the end of the
current list.
=head2 shift()
Equivalent to perl's shift function.
=head2 unshift(@nodes)
Equivalent to perl's unshift function.
=head2 prepend($nodeset)
Given a nodeset, prepends the list of nodes in $nodeset to the front of
the current list.
=cut
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