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
|
package XTM::scope;
use strict;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK);
require Exporter;
require AutoLoader;
use XTM::generic;
use XTM::topicRef;
use XTM::resourceRef;
use XTM::subjectIndicatorRef;
@ISA = qw(Exporter AutoLoader XTM::generic);
@EXPORT = qw( );
$VERSION = '0.03';
=pod
=head1 NAME
XTM::scope - trivial class definition
=head1 SYNOPSIS
# see XTM::generic
=head1 DESCRIPTION
Most functions are inherited from XTM::generic. The only exceptions are below.
=over
=item I<scope_eq>
This B<function> expects to scope references and returns 0 if they are different and
1 otherwise. This function - for performance reasons - expects that the scope references are
sorted by their ref() and then by the value of C<href>.
=cut
sub scope_eq {
my $sr1 = shift;
my $sr2 = shift;
# this is a set comparison, but I assume that this set is SORTED along the type (topicRef, ...) and href
return 0 unless scalar @{$sr1} == scalar @{$sr2};
for (my $i = 0; $i < scalar @{$sr1}; $i++) {
return 0 if ref($sr1->[$i]) ne ref($sr2->[$i]); # should have the same types
return 0 if $sr1->[$i]->href ne $sr2->[$i]->href; # should have the same link
}
return 1;
}
=pod
=cut
sub xml {
my $self = shift;
my $writer = shift;
$writer->startTag ('scope');
foreach my $s (@{$self->references}) {
$s->xml ($writer);
}
$writer->endTag ('scope');
};
=pod
=head1 SEE ALSO
L<XTM>
=head1 AUTHOR INFORMATION
Copyright 2001, 2002, Robert Barta <rho@telecoma.net>, All rights reserved.
This library is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.
http://www.perl.com/perl/misc/Artistic.html
=cut
1;
__END__
|
