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#!/usr/bin/perl -w |
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|
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=head1 NAME |
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|
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mods2marc.pl - convert MODS XML back to MARC (ISO2709) |
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|
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=head1 SYNOPSIS |
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|
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mods2marc.pl export.marc mods.xml [mods2.xml ... ] |
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|
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=head1 DESCRIPTION |
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|
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This script will convert MODS format |
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L<http://www.loc.gov/standards/mods/> |
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back to MARC (ISO2709) format. |
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|
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Since conversion back to MARC is not simple, lot of things are hard-coded |
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in this script. |
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|
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This script B<is somewhat specific> to MODS export from |
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Faculty of Electrical Engineering and Computing |
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so you might want to edit it (among other thing, it includes a lot |
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of fields which are in Croatian). |
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|
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Feel free to hack this script and convert it to your own needs. |
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|
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=head1 CAVEAT |
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|
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This script will parse imput XML twice: once with C<XML::Twig> and |
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then each entry with C<XML::Simple> to produce in-memory structure. |
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That's because I wanted to keep node selection logical (and perl-like). |
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|
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If you don't like it, you can rewrite this script to use XPATH. I tried |
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and failed (it seems that MODS is too complicated for my limited knowledge |
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of XPATH). |
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|
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=cut |
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|
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use strict; |
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use XML::Twig; |
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use XML::Simple; |
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use MARC; |
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use Text::Iconv; |
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|
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use Data::Dumper; |
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|
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my $marc_file = shift @ARGV || die "$0: need MARC export file"; |
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die "$0: need at least one MODS XML file" if (! @ARGV); |
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|
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$|=1; |
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my $nr = 0; |
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|
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my $marc = MARC->new; |
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|
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my $ENCODING = 'ISO-8859-2'; |
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$ENCODING = 'windows-1250'; |
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|
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my $twig=XML::Twig->new( |
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twig_roots => { 'mods' => \&mods }, |
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output_encoding => 'UTF8', |
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); |
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|
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my $utf2iso = Text::Iconv->new("UTF8", $ENCODING); |
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|
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foreach my $xml_file (@ARGV) { |
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print "$xml_file: "; |
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$twig->parsefile($xml_file); |
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$twig->purge; |
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print "$nr\n"; |
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} |
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|
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print "Saving MARC file...\n"; |
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|
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$marc->output({file=>"> $marc_file",'format'=>"usmarc"}); |
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|
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sub mods { |
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my( $t, $elt)= @_; |
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|
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my $xml=$elt->xml_string; |
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my $ref = XMLin('<xml>'.$xml.'</xml>', |
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ForceArray => [ |
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'name', |
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'classification', |
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'topic', |
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'relatedItem', |
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'partNumber', |
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], |
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KeyAttr => { |
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'namePart' => 'type', |
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'identifier' => 'type', |
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'namePart' => 'type', |
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'role' => 'type', |
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}, |
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GroupTags => { |
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'place' => 'placeTerm', |
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'physicalDescription' => 'extent', |
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'roleTerm' => 'content', |
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}, |
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ContentKey => '-content', |
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); |
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|
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my $m_cache; |
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|
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sub marc_add { |
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my $m_cache = \shift || die "need m_cache"; |
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my $fld = shift || die "need field!"; |
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my $sf = shift; |
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my $data = shift || return; |
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|
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#print "add: $fld",($sf ? "^".$sf : ''),": $data\n"; |
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|
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if ($sf) { |
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push @{$$m_cache->{tmp}->{$fld}}, $sf; |
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} |
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push @{$$m_cache->{tmp}->{$fld}}, $utf2iso->convert($data); |
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} |
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|
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sub marc_rep { |
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my $m_cache = \shift || die "need m_cache"; |
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foreach my $fld (@_) { |
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#print "marc_rep: $fld\n"; |
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push @{$$m_cache->{array}->{$fld}}, [ @{$$m_cache->{tmp}->{$fld}} ] if ($$m_cache->{tmp}->{$fld}); |
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delete $$m_cache->{tmp}->{$fld}; |
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} |
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} |
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|
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sub marc_single { |
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my $m_cache = \shift || die "need m_cache"; |
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foreach my $fld (@_) { |
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#print "marc_single: $fld\n"; |
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|
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die "$fld already defined! not single?" if ($$m_cache->{single}->{$fld}); |
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|
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$$m_cache->{single}->{$fld} = \@{$$m_cache->{tmp}->{$fld}} if ($$m_cache->{tmp}->{$fld}); |
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delete $$m_cache->{tmp}->{$fld}; |
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} |
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} |
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|
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sub marc_add_rep { |
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my $m_cache = \shift || die "need m_cache"; |
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my $fld = shift || die "need field!"; |
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my $sf = shift; |
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my $data = shift || return; |
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|
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marc_add($$m_cache,$fld,$sf,$data); |
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marc_rep($$m_cache,$fld); |
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} |
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|
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sub marc_add_single { |
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my $m_cache = \shift || die "need m_cache"; |
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my $fld = shift || die "need field!"; |
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my $sf = shift; |
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my $data = shift || return; |
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|
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marc_add($$m_cache,$fld,$sf,$data); |
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marc_single($$m_cache,$fld); |
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} |
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|
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my $journal = 0; |
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# Journals start with c- in our MODS |
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$journal = 1 if ($ref->{recordInfo}->{recordIdentifier} =~ m/^c-/); |
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|
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foreach my $t (@{$ref->{subject}->{topic}}) { |
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marc_add($m_cache,'610','a', $t); |
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marc_rep($m_cache,'610'); |
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} |
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|
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my $fld_700 = '700'; |
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my $fld_710 = '710'; |
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|
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foreach my $name (@{$ref->{name}}) { |
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my $role = $name->{role}->{roleTerm}->{content}; |
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next if (! $role); |
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if ($role eq "author") { |
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marc_add($m_cache,$fld_700,'a',$name->{namePart}->{family}); |
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marc_add($m_cache,$fld_700,'b',$name->{namePart}->{given}); |
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marc_add($m_cache,$fld_700,'4',$role); |
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|
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marc_rep($m_cache,$fld_700); |
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|
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# first author goes in 700, others in 701 |
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$fld_700 = '701'; |
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} elsif ($role eq "editor" or $role eq "illustrator") { |
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marc_add($m_cache,'702','a',$name->{namePart}->{family}); |
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marc_add($m_cache,'702','b',$name->{namePart}->{given}); |
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marc_add($m_cache,'702','4',$role); |
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marc_rep($m_cache,'702'); |
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} elsif ($role eq "corporate") { |
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marc_add_single($m_cache,"$fld_710\t0 ",'a',$name->{namePart}); |
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$fld_710 = '711'; |
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} elsif ($role eq "conference") { |
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marc_add_single($m_cache,"$fld_710\t1 ",'a',$name->{namePart}); |
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$fld_710 = '711'; |
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} else { |
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die "FATAL: don't know how to map role '$role'" if ($role); |
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} |
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} |
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|
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my $note = $ref->{note}; |
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|
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if ($note) { |
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foreach my $n (split(/\s*;\s+/, $note)) { |
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if ($n =~ s/bibliogr:\s+//i) { |
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marc_add_rep($m_cache,'320','a',"Bibliografija: $n"); |
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} elsif ($n =~ s/ilustr:\s+//i) { |
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marc_add($m_cache,'215','c', $n); |
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} else { |
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marc_add_rep($m_cache,'320','a',$n); |
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} |
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} |
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} |
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|
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|
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my $type = $ref->{identifier}->{type}; |
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|
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if ($type) { |
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if ($type eq "isbn") { |
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marc_add_rep($m_cache,'010','a',$ref->{identifier}->{content}); |
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} elsif ($type eq "issn") { |
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marc_add_rep($m_cache,'011','a',$ref->{identifier}->{content}); |
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} elsif ($type eq "uri") { |
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marc_add_rep($m_cache,'856','u',$ref->{identifier}->{content}); |
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} else { |
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die "unknown identifier type $type"; |
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} |
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} |
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|
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my $phy_desc = $ref->{physicalDescription}; |
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if ($phy_desc) { |
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my $tmp; |
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foreach my $t (split(/\s*;\s+/, $phy_desc)) { |
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if ($t =~ m/([^:]+):\s+(.+)$/) { |
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$tmp->{$1} = $2; |
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} else { |
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print STDERR "can't parse '$t' in ",Dumper($phy_desc); |
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} |
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} |
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my $data = $tmp->{pagin}; |
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$data .= ", " if ($data); |
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if ($tmp->{str}) { |
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$data .= $tmp->{str}." str"; |
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} |
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marc_add($m_cache,'215','a', $data) if ($data); |
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marc_add($m_cache,'215','d', $tmp->{visina}); |
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} |
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marc_rep($m_cache,'215'); |
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|
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my $mfn = $ref->{recordInfo}->{recordIdentifier}; |
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$mfn =~ s/[^0-9]//g; |
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marc_add_single($m_cache,'001',undef,$mfn); |
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|
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marc_add($m_cache,'200','a',$ref->{titleInfo}->{title}); |
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marc_add($m_cache,'200','e',$ref->{titleInfo}->{subTitle}); |
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marc_single($m_cache,'200'); |
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|
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foreach my $c (@{$ref->{classification}}) { |
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if ($c->{'authority'} eq "udc") { |
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marc_add_rep($m_cache,'675','a', $c->{'content'}); |
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} |
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} |
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|
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foreach my $ri (@{$ref->{relatedItem}}) { |
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my $related = $ri->{type}; |
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if ($related) { |
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if ($related eq "series") { |
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marc_add_rep($m_cache,'225','a',$ri->{titleInfo}->{title}); |
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foreach my $pn (@{$ri->{titleInfo}->{partNumber}}) { |
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if ($journal) { |
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marc_add_rep($m_cache,'999','a',$pn); |
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} else { |
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marc_add_rep($m_cache,'225','v',$pn); |
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} |
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} |
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} elsif ($related eq "preceding") { |
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marc_add($m_cache,'520','a',$ri->{titleInfo}->{title}); |
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if ($ri->{identifier}) { |
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if ($ri->{identifier}->{type} eq "issn") { |
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marc_add($m_cache,'520','x',$ri->{identifier}->{content}); |
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} else { |
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die "can't store identifier type $type"; |
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} |
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} |
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marc_rep($m_cache,'520'); |
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} else { |
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die "can't parse related item type $related" if ($related); |
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} |
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} |
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} |
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|
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marc_add_single($m_cache,'205','a',$ref->{originInfo}->{edition}); |
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|
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marc_add($m_cache,'210','a',$ref->{originInfo}->{place}); |
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|
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my $publisher = $ref->{originInfo}->{publisher}; |
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if ($publisher =~ m,^(.+?)\s*/\s*(.+)$,) { |
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marc_add($m_cache,'210','a', $2); |
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marc_add($m_cache,'210','c', $1); |
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} else { |
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marc_add($m_cache,'210','c', $publisher); |
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} |
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|
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marc_add($m_cache,'210','d',$ref->{originInfo}->{dateIssued}); |
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|
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marc_single($m_cache,'210'); |
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|
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marc_add_single($m_cache,'326','a',$ref->{originInfo}->{frequency}) if ($journal); |
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|
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$nr++; |
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print "$nr " if ($nr % 100 == 0); |
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|
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# dump record |
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my $bib_level = "m"; |
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$bib_level = "s" if ($journal); |
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my $m=$marc->createrecord({leader=>"00000na".$bib_level." 2200000 a 4500"}); |
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|
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foreach my $fld (keys %{$m_cache->{array}}) { |
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foreach my $arr (@{$m_cache->{array}->{$fld}}) { |
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#print "array = ",Dumper($arr); |
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my ($i1,$i2); |
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# do we have indicators? |
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if ($fld =~ m/^(.+)\t(.)(.)$/) { |
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$fld = $1; |
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($i1,$i2) = ($2,$3); |
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} |
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$marc->addfield({record=>$m, |
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field=>$fld, |
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i1=>$i1, |
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i2=>$i2, |
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value=>$arr |
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}); |
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} |
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} |
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|
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foreach my $fld (keys %{$m_cache->{single}}) { |
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#print "single = ",Dumper($m_cache->{single}->{$fld}); |
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my ($i1,$i2); |
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# do we have indicators? |
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if ($fld =~ m/^(.+)\t(.)(.)$/) { |
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$fld = $1; |
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($i1,$i2) = ($2,$3); |
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} |
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$marc->addfield({record=>$m, |
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field=>$fld, |
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i1=>$i1, |
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i2=>$i2, |
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value=>$m_cache->{single}->{$fld} |
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}); |
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} |
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|
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$m_cache = {}; |
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|
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$t->purge; # frees the memory |
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} |
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|