This file is indexed.

/usr/share/perl5/XML/XPath/Number.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
# $Id: Number.pm,v 1.14 2002/12/26 17:57:09 matt Exp $

package XML::XPath::Number;
use XML::XPath::Boolean;
use XML::XPath::Literal;
use strict;

use overload
        '""' => \&value,
        '0+' => \&value,
        '<=>' => \&cmp;

sub new {
    my $class = shift;
    my $number = shift;
    if ($number !~ /^\s*[+-]?(\d+(\.\d*)?|\.\d+)\s*$/) {
        $number = undef;
    }
    else {
        $number =~ s/^\s*(.*)\s*$/$1/;
    }
    bless \$number, $class;
}

sub as_string {
    my $self = shift;
    defined $$self ? $$self : 'NaN';
}

sub as_xml {
    my $self = shift;
    return "<Number>" . (defined($$self) ? $$self : 'NaN') . "</Number>\n";
}

sub value {
    my $self = shift;
    $$self;
}

sub cmp {
    my $self = shift;
    my ($other, $swap) = @_;
    if ($swap) {
        return $other <=> $$self;
    }
    return $$self <=> $other;
}

sub evaluate {
    my $self = shift;
    $self;
}

sub to_boolean {
    my $self = shift;
    return $$self ? XML::XPath::Boolean->True : XML::XPath::Boolean->False;
}

sub to_literal { XML::XPath::Literal->new($_[0]->as_string); }
sub to_number { $_[0]; }

sub string_value { return $_[0]->value }

1;
__END__

=head1 NAME

XML::XPath::Number - Simple numeric values.

=head1 DESCRIPTION

This class holds simple numeric values. It doesn't support -0, +/- Infinity,
or NaN, as the XPath spec says it should, but I'm not hurting anyone I don't think.

=head1 API

=head2 new($num)

Creates a new XML::XPath::Number object, with the value in $num. Does some
rudimentary numeric checking on $num to ensure it actually is a number.

=head2 value()

Also as overloaded stringification. Returns the numeric value held.

=cut