package Catmandu::Exporter::MARC::XML;
use Catmandu::Sane;
use Catmandu::Util qw(xml_escape is_different :array :is);
use Moo;
our $VERSION = '1.06';
with 'Catmandu::Exporter', 'Catmandu::Exporter::MARC::Base', 'Catmandu::Buffer';
has record => (is => 'ro' , default => sub { 'record'});
has record_format => (is => 'ro' , default => sub { 'raw'} );
has skip_empty_subfields => (is => 'ro' , default => sub { 1 });
has collection => (is => 'ro' , default => sub { 1 });
has xml_declaration => (is => 'ro' , default => sub { 1 });
has pretty => (is => 'rw' , default => sub { 0 });
has _n => (is => 'rw' , default => sub { 0 });
sub _line {
my ($self, $indent, $line) = @_;
if ($self->pretty) {
my $pre = " " x $indent;
$self->buffer_add( $pre.$line."\n" );
} else {
$self->buffer_add( $line );
}
}
sub add {
my ($self, $data) = @_;
if ($self->_n == 0) {
if ($self->xml_declaration) {
$self->buffer_add( Catmandu::Util::xml_declaration );
}
if ($self->collection) {
$self->_line(0,'<marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">');
}
$self->_n(1);
}
my $indent = $self->collection ? 1 : 0;
if ($self->record_format eq 'MARC-in-JSON') {
$data = $self->_json_to_raw($data);
}
if ($self->collection) {
$self->_line($indent,'<marc:record>');
}
else {
$self->_line($indent,'<marc:record xmlns:marc="http://www.loc.gov/MARC21/slim">');
}
my $record = $data->{$self->record};
for my $field (@$record) {
my ($tag, $ind1, $ind2, @data) = @$field;
$ind1 = ' ' unless defined $ind1;
$ind2 = ' ' unless defined $ind2;
@data = $self->_clean_raw_data($tag,@data) if $self->skip_empty_subfields;
next if $tag eq 'FMT';
next if @data == 0;
if ($tag eq 'LDR') {
$self->_line($indent+1,'<marc:leader>' . xml_escape($data[1]) . '</marc:leader>');
}
elsif ($tag =~ /^00/) {
$self->_line($indent+1,'<marc:controlfield tag="' . xml_escape($tag) . '">' . xml_escape($data[1]) . '</marc:controlfield>');
}
else {
$self->_line($indent+1,'<marc:datafield tag="' . xml_escape($tag) . '" ind1="' . $ind1 . '" ind2="' . $ind2 . '">');
while (@data) {
my ($code, $val) = splice(@data, 0, 2);
next unless $code =~ /[A-Za-z0-9]/;
$self->_line($indent+2,'<marc:subfield code="' . $code . '">' . xml_escape($val) . '</marc:subfield>');
}
$self->_line($indent+1,'</marc:datafield>');
}
}
$self->_line($indent,'</marc:record>');
$self->fh->print( join('', @{ $self->buffer } ) );
$self->clear_buffer;
}
sub commit {
my ($self) = @_;
if($self->collection){
$self->fh->print('</marc:collection>');
}
$self->fh->flush;
}
1;
__END__
=head1 NAME
Catmandu::Exporter::MARC::XML - Exporter for MARC records to MARCXML
=head1 SYNOPSIS
# From the command line
$ catmandu convert MARC to MARC --type XML < /foo/data.mrc
# From Perl
use Catmandu;
my $importer = Catmandu->importer('MARC', file => "/foo/bar.mrc" , type => 'ISO');
my $exporter = Catmandu->exporter('MARC', file => "marc.xml", type => 'XML' );
$exporter->add($importer);
$exporter->commit;
=head1 DESCRIPTION
This L<Catmandu::Exporter::MARC> serializes MARC records as XML.
=head1 CONFIGURATION
=over
=item file
Write output to a local file given by its path or file handle. Alternatively a
scalar reference can be passed to write to a string and a code reference can be
used to write to a callback function.
=item fh
Write the output to an L<IO::Handle>. If not specified,
L<Catmandu::Util::io|Catmandu::Util/IO-functions> is used to create the output
handle from the C<file> argument or by using STDOUT.
=item fix
An ARRAY of one or more fixes or file scripts to be applied to exported items.
=item record
the key containing the marc record (default: 'record')
=item record_format
Optionally set to 'MARC-in-JSON' when the input format is in MARC-in-JSON
=item collection
add a marc:collection header when true (default: true)
=item xml_declaration
add a xml declaration when true (default: true)
=item skip_empty_subfields
skip fields which don't contain any data (default: false)
=item pretty
pretty-print XML
=back
=head1 METHODS
See L<Catmandu::Exporter>, L<Catmandu::Addable>, L<Catmandu::Fixable>,
L<Catmandu::Counter>, and L<Catmandu::Logger> for a full list of methods.
=head1 SEE ALSO
L<Catmandu::Importer::MARC::XML>
=cut