/usr/share/perl5/MAB2/Parser/XML.pm is in libcatmandu-mab2-perl 0.21-1.
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 | package MAB2::Parser::XML;
our $VERSION = '0.21';
use strict;
use warnings;
use Carp qw<croak>;
use XML::LibXML::Reader;
sub new {
my $class = shift;
my $input = shift;
my $self = {
filename => undef,
rec_number => 0,
xml_reader => undef,
};
# check for file or filehandle
my $ishandle = eval { fileno($input); };
if ( !$@ && defined $ishandle ) {
binmode $input; # drop all PerlIO layers, as required by libxml2
my $reader = XML::LibXML::Reader->new( IO => $input )
or croak "cannot read from filehandle $input\n";
$self->{filename} = scalar $input;
$self->{xml_reader} = $reader;
}
elsif ( defined $input && $input !~ /\n/ && -e $input ) {
my $reader = XML::LibXML::Reader->new( location => $input )
or croak "cannot read from file $input\n";
$self->{filename} = $input;
$self->{xml_reader} = $reader;
}
elsif ( defined $input && length $input > 0 ) {
my $reader = XML::LibXML::Reader->new( string => $input )
or croak "cannot read XML string $input\n";
$self->{xml_reader} = $reader;
}
else {
croak "file, filehande or string $input does not exists";
}
return ( bless $self, $class );
}
sub next {
my $self = shift;
if ( $self->{xml_reader}->nextElement('datensatz') ) {
$self->{rec_number}++;
my $record = _decode( $self->{xml_reader} );
my ($id) = map { $_->[-1] } grep { $_->[0] =~ '001' } @{$record};
return { _id => $id, record => $record };
}
return;
}
sub _decode {
my $reader = shift;
my @record;
# get all field nodes from MAB2 XML record;
foreach my $field_node (
$reader->copyCurrentNode(1)->getChildrenByTagName('feld') )
{
my @field;
# get field tag number
my $tag = $field_node->getAttribute('nr');
my $ind = $field_node->getAttribute('ind') // '';
# ToDo: textContent ignores </tf> and <ns>
# Check for data or subfields
if ( my @subfields = $field_node->getChildrenByTagName('uf') ) {
push( @field, ( $tag, $ind ) );
# get all subfield nodes
foreach my $subfield_node (@subfields) {
my $subfield_code = $subfield_node->getAttribute('code');
my $subfield_data = $subfield_node->textContent;
push( @field, ( $subfield_code, $subfield_data ) );
}
}
else {
my $data = $field_node->textContent();
push( @field, ( $tag, $ind, '_', $data ) );
}
push( @record, [@field] );
}
return \@record;
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
MAB2::Parser::XML - MAB2 XML parser
=head1 SYNOPSIS
L<MAB2::Parser::XML> is a parser for MAB2 XML records.
use MAB2::Parser::XML;
my $parser = MAB2::Parser::XML->new( $filename );
while ( my $record_hash = $parser->next() ) {
# do something
}
=head1 Arguments
=over
=item C<file>
Path to file with MAB2 XML records.
=item C<fh>
Open filehandle for file with MAB2 XML records.
=item C<string>
XML string with MAB2 XML records.
=back
=head1 METHODS
=head2 new($filename | $filehandle | $string)
=head2 next()
Reads the next record from MAB2 XML input stream. Returns a Perl hash.
=head2 _decode($record)
Deserialize a MAB2 XML record to an an ARRAY of ARRAYs.
=head1 SEEALSO
L<Catmandu::Importer::MAB2>.
=head1 AUTHOR
Johann Rolschewski <jorol@cpan.org>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2013 by Johann Rolschewski.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|