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#!/usr/bin/perl
=head1 NAME
xml2marc - convert LC SlimSchema XML to MARC21
=head1 SYNOPSIS
# convert a file
% xml2marc marc.xml > marc.dat.
# or use in a pipeline
% cat marc.xml | xml2marc > marc.dat
=head1 DESCRIPTION
xml2marc is a command line utility for converting XML that uses the Library of
Congress Slim Schema to MARC21 bibliographic data. Conversion is handled using
the MARC::Record and MARC::File::XML packages.
=cut
use strict;
use warnings;
use MARC::Batch;
use MARC::File::XML;
my $file = shift;
my $fh;
## read from a file?
if ( $file ) {
fatal( "no such file: $file" ) if ! -r $file;
$fh = IO::File->new( $file );
}
## or from STDIN?
else {
$fh = \*STDIN;
}
## set up intput/output for utf8 encoding
binmode( STDOUT, ':bytes' );
binmode( $fh, ':utf8' );
my $batch = MARC::Batch->new( 'XML', $fh );
while ( my $record = $batch->next() ) {
print $record->as_usmarc();
}
sub fatal {
print STDERR shift, "\n";
exit( 1 );
}
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