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package WebPAC::Normalize::MARC; |
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use Exporter 'import'; |
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@EXPORT = qw/ |
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marc_template |
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/; |
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|
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use strict; |
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use warnings; |
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|
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use Data::Dump qw/dump/; |
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use Carp qw/confess/; |
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|
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use WebPAC::Normalize; |
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|
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=head1 NAME |
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|
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WebPAC::Normalize::MARC - create MARC/ISO2709 records |
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|
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=cut |
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|
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=head1 FUNCTIONS |
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|
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=head2 marc_template |
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|
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marc_template( |
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from => 225, to => 440, |
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subfields_rename => [ |
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'a' => 'a', |
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'x' => 'x', |
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'v' => 'v', |
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'h' => 'n', |
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'i' => 'p', |
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'w' => 'v', |
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], |
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isis_template => [ |
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'a ; |v. |i', |
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'a. |i ; |w', |
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], |
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marc_template => [ |
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'a, |x ; |v. |n, |p ; |v', |
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'a ; |v. |p ; |v', |
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], |
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); |
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|
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Returns number of records produced. |
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|
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=cut |
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|
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sub marc_template { |
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my $args = {@_}; |
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warn "## marc_template(",dump($args),")"; |
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|
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foreach ( qw/subfields_rename isis_template marc_template/ ) { |
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# warn "ref($_) = ",ref($args->{$_}); |
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die "$_ not ARRAY" if defined($args->{$_}) && ref($args->{$_}) ne 'ARRAY'; |
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} |
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|
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die "marc_template needs isis_template or marc_template" |
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if ! defined $args->{isis_template} && ! defined $args->{marc_template}; |
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|
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my $rec = WebPAC::Normalize::_get_rec() || die "_get_rec?"; |
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my $r = $rec->{ $args->{from} } || return; |
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die "record field ", $args->{from}, " isn't array ",dump( $rec ) unless (ref($r) eq 'ARRAY'); |
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|
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my @subfields_rename = @{ $args->{subfields_rename} }; |
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# warn "### subfields_rename [$#subfields_rename] = ",dump( @subfields_rename ); |
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|
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confess "need mapping in pairs for subfields_rename" |
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if $#subfields_rename % 2 != 1; |
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|
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my ( $subfields_rename, $from_subfields, $to_subfields ); |
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while ( my ( $from, $to ) = splice(@subfields_rename, 0, 2) ) { |
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my ( $f, $t ) = ( |
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$from_subfields->{ $from }++, |
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$to_subfields->{ $to }++ |
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); |
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$subfields_rename->{ $from }->[ $f ] = [ $to => $t ]; |
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} |
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warn "### subfields_rename = ",dump( $subfields_rename ),$/; |
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warn "### from_subfields = ", dump( $from_subfields ),$/; |
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warn "### to_subfields = ", dump( $to_subfields ),$/; |
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|
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our $_template; |
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|
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$_template->{isis}->{fields_re} = join('|', keys %$from_subfields ); |
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$_template->{marc}->{fields_re} = join('|', keys %$to_subfields ); |
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|
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my @marc_out; |
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|
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sub _parse_template { |
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my ( $name, $templates ) = @_; |
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|
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my $fields_re = $_template->{$name}->{fields_re} || die "can't find $name in ",dump( $_template->{$name}->{fields_re} ); |
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|
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foreach my $template ( @{ $templates } ) { |
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our $count = {}; |
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our @order = (); |
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sub my_count { |
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my $sf = shift; |
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my $nr = $count->{$sf}++; |
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push @order, [ $sf, $nr ]; |
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return $sf . $nr; |
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} |
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my $pos_template = $template; |
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$pos_template =~ s/($fields_re)/my_count($1)/ge; |
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my $count_key = dump( $count ); |
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warn "### template: |$template| -> |$pos_template| count = $count_key order = ",dump( @order ),$/; |
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$_template->{$name}->{pos}->{ $count_key } = $pos_template; |
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$_template->{$name}->{order}->{ $pos_template } = [ @order ]; |
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} |
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warn "### from ",dump( $templates ), " using $fields_re created ", dump( $_template ); |
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} |
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|
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_parse_template( 'marc', $args->{marc_template} ); |
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_parse_template( 'isis', $args->{isis_template} ); |
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warn "### _template = ",dump( $_template ); |
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|
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my $m; |
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|
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foreach my $r ( @{ $rec->{ $args->{from} } } ) { |
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|
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my $i1 = $r->{i1} || ' '; |
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my $i2 = $r->{i2} || ' '; |
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$m = [ $args->{to}, $i1, $i2 ]; |
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|
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warn "### r = ",dump( $r ); |
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|
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my ( $from_mapping, $to_mapping, $from_count, $to_count ); |
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foreach my $sf ( keys %{$r} ) { |
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# skip everything which isn't one char subfield (e.g. 'subfields') |
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next unless $sf =~ m/^\w$/; |
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my $nr = $from_count->{$sf}++; |
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my $rename_to = $subfields_rename->{ $sf } || |
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die "can't find subfield rename for $sf/$nr in ", dump( $subfields_rename ); |
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warn "### rename $sf/$nr to ", dump( $rename_to->[$nr] ), $/; |
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my ( $to_sf, $to_nr ) = @{ $rename_to->[$nr] }; |
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$from_mapping->{ $sf }->[ $nr ] = [ $to_sf => $to_nr ]; |
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$to_mapping->{ $to_sf }->[ $to_nr ] = [ $sf => $nr ]; |
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|
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$to_count->{ $to_sf }++; |
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} |
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|
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warn "### to_mapping = ",dump( $to_mapping ); |
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|
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my $count_key = { |
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from => dump( $from_count ), |
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to => dump( $to_count), |
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}; |
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|
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warn "### count_key = ",dump( $count_key ), $/; |
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|
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my $processed_templates = 0; |
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|
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# this defines order of traversal |
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foreach ( qw/isis:from marc:to/ ) { |
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my ($name,$count_name) = split(/:/); |
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|
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my $ckey = $count_key->{$count_name} || die "can't find count_key $count_name in ",dump( $count_key ); |
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|
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my $template = $_template->{$name}->{pos}->{ $ckey } || next; |
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$processed_templates++; |
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|
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warn "### traverse $name $count_name selected template: |$template|\n"; |
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|
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our $fill_in = {}; |
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|
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my @templates = split(/\|/, $template ); |
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@templates = ( $template ); |
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|
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foreach my $sf ( @templates ) { |
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sub fill_in { |
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my ( $name, $r, $sf, $nr ) = @_; |
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my ( $from_sf, $from_nr, $v ); |
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if ( $name eq 'marc' ) { |
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( $from_sf, $from_nr ) = @{ $to_mapping->{$sf}->[$nr] }; |
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} else { |
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( $from_sf, $from_nr ) = ( $sf, $nr ); |
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} |
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my $v = $r->{ $from_sf }; # || die "no $from_sf/$from_nr"; |
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warn "#### fill_in( $sf, $nr ) = $from_sf/$from_nr >>>> ",dump( $v ), $/; |
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if ( ref( $v ) eq 'ARRAY' ) { |
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$fill_in->{$sf}->[$nr] = $v->[$from_nr]; |
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return $v->[$from_nr]; |
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} elsif ( $from_nr == 0 ) { |
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$fill_in->{$sf}->[$nr] = $v; |
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return $v; |
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} else { |
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die "requested subfield $from_sf/$from_nr but it's ",dump( $v ); |
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} |
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} |
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my $fields_re = $_template->{$name}->{fields_re} || die "can't find $name in ",dump( $_template->{$name}->{fields_re} ); |
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warn "#### $sf <<<< $fields_re\n"; |
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$sf =~ s/($fields_re)(\d+)/fill_in($name,$r,$1,$2)/ge; |
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warn "#### >>>> $sf with fill_in = ",dump( $fill_in ),$/; |
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} |
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|
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warn "## template: |$template|\n## _template->$name = ",dump( $_template->{$name} ); |
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|
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foreach my $sf ( @{ $_template->{$name}->{order}->{$template} } ) { |
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my ( $sf, $nr ) = @$sf; |
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my $v = $fill_in->{$sf}->[$nr] || die "can't find fill_in $sf/$nr"; |
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if ( $name eq 'isis') { |
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( $sf, $nr ) = @{ $from_mapping->{$sf}->[$nr] }; |
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} |
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warn "++ $sf/$nr |$v|\n"; |
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push @$m, ( $sf, $v ); |
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} |
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|
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warn "#### >>>> created MARC record: ", dump( $m ); |
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|
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push @marc_out, $m; |
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} |
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|
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die "I don't have template for fields ",dump( $count_key ), "\n## available templates\n", dump( $_template ) unless $processed_templates; |
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warn ">>> $processed_templates templates applied to data\n"; |
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} |
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|
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|
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my $recs = 0; |
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|
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foreach my $marc ( @marc_out ) { |
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warn "+++ ",dump( $marc ),$/; |
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WebPAC::Normalize::_marc_push( $marc ); |
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$recs++; |
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} |
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|
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warn "### marc_template produced $recs MARC records: ",dump( @marc_out ), $/; |
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} |
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|
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1; |
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