/[webpac2]/trunk/lib/WebPAC/Normalize/MARC.pm
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Annotation of /trunk/lib/WebPAC/Normalize/MARC.pm

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Revision 1021 - (hide annotations)
Sat Nov 10 11:11:16 2007 UTC (16 years, 5 months ago) by dpavlin
File size: 5270 byte(s)
 r1579@llin:  dpavlin | 2007-11-10 11:59:27 +0100
 Begin extraction of MARC functionality from WebPAC::Normalize to
 WebPAC::Normalize::MARC

1 dpavlin 1021 package WebPAC::Normalize::MARC;
2     use Exporter 'import';
3     @EXPORT = qw/
4     marc_template
5     /;
6    
7     use strict;
8     use warnings;
9    
10     use Data::Dump qw/dump/;
11     use Carp qw/confess/;
12    
13     use WebPAC::Normalize;
14    
15     =head1 NAME
16    
17     WebPAC::Normalize::MARC - create MARC/ISO2709 records
18    
19     =cut
20    
21     =head1 FUNCTIONS
22    
23     =head2 marc_template
24    
25     marc_template(
26     from => 225, to => 440,
27     subfields_rename => [
28     'a' => 'a',
29     'x' => 'x',
30     'v' => 'v',
31     'h' => 'n',
32     'i' => 'p',
33     'w' => 'v',
34     ],
35     isis_template => [
36     'a ; |v. |i',
37     'a. |i ; |w',
38     ],
39     marc_template => [
40     'a, |x ; |v. |n, |p ; |v',
41     'a ; |v. |p ; |v',
42     ],
43     );
44    
45     =cut
46    
47     sub marc_template {
48     my $args = {@_};
49     warn "## marc_template(",dump($args),")";
50    
51     foreach ( qw/subfields_rename isis_template marc_template/ ) {
52     # warn "ref($_) = ",ref($args->{$_});
53     die "$_ not ARRAY" if defined($args->{$_}) && ref($args->{$_}) ne 'ARRAY';
54     }
55    
56     die "marc_template needs isis_template or marc_template"
57     if ! defined $args->{isis_template} && ! defined $args->{marc_template};
58    
59     my $rec = WebPAC::Normalize::_get_rec() || die "_get_rec?";
60     my $r = $rec->{ $args->{from} } || return;
61     die "record field ", $args->{from}, " isn't array ",dump( $rec ) unless (ref($r) eq 'ARRAY');
62    
63     my @subfields_rename = @{ $args->{subfields_rename} };
64     # warn "### subfields_rename [$#subfields_rename] = ",dump( @subfields_rename );
65    
66     confess "need mapping in pairs for subfields_rename"
67     if $#subfields_rename % 2 != 1;
68    
69     my ( $subfields_rename, $from_subfields, $to_subfields );
70     while ( my ( $from, $to ) = splice(@subfields_rename, 0, 2) ) {
71     my ( $f, $t ) = (
72     $from_subfields->{ $from }++,
73     $to_subfields->{ $to }++
74     );
75     $subfields_rename->{ $from }->[ $f ] = [ $to => $t ];
76     }
77     warn "### subfields_rename = ",dump( $subfields_rename ),$/;
78     warn "### from_subfields = ", dump( $from_subfields ),$/;
79     warn "### to_subfields = ", dump( $to_subfields ),$/;
80    
81     my $fields_re = join('|', keys %$to_subfields );
82    
83     my $pos_templates;
84     my $fill_in;
85     my @marc_out;
86    
87     my ( $marc_template_order, @marc_order ); # = _parse_template( $args->{marc_template} );
88    
89     my $templates = $args->{marc_template};
90    
91     foreach my $template ( @{ $templates } ) {
92     my $count;
93     my @marc_order;
94     sub my_count {
95     my $sf = shift;
96     my $nr = $count->{$sf}++;
97     push @marc_order, [ $sf, $nr ];
98     return $sf . $nr;
99     }
100     my $pos_template = $template;
101     $pos_template =~ s/($fields_re)/my_count($1)/ge;
102     my $count_key = dump( $count );
103     warn "### template: |$template| -> |$pos_template| count = $count_key marc_order = ",dump( @marc_order ),$/;
104     $pos_templates->{ $count_key } = $pos_template;
105     $marc_template_order->{ $pos_template } = [ @marc_order ];
106     }
107     warn "### from ",dump( $templates ), " created ", dump( $pos_templates ), " and ", dump( $marc_template_order );
108    
109     my $m;
110    
111     foreach my $r ( @{ $rec->{ $args->{from} } } ) {
112    
113     my $i1 = $r->{i1} || ' ';
114     my $i2 = $r->{i2} || ' ';
115     $m = [ $args->{to}, $i1, $i2 ];
116    
117     warn "### r = ",dump( $r );
118    
119     my ( $new_r, $from_count, $to_count );
120     foreach my $sf ( keys %{$r} ) {
121     # skip everything which isn't one char subfield (e.g. 'subfields')
122     next unless $sf =~ m/^\w$/;
123     my $nr = $from_count->{$sf}++;
124     my $rename_to = $subfields_rename->{ $sf } ||
125     die "can't find subfield rename for $sf/$nr in ", dump( $subfields_rename );
126     warn "### rename $sf/$nr to ", dump( $rename_to->[$nr] ), $/;
127     my ( $to_sf, $to_nr ) = @{ $rename_to->[$nr] };
128     $new_r->{ $to_sf }->[ $to_nr ] = [ $sf => $nr ];
129    
130     $to_count->{ $to_sf }++;
131     }
132    
133     warn "### new_r = ",dump( $new_r );
134    
135     my $from_count_key = dump( $to_count );
136    
137     warn "### from_count = ",dump( $from_count ), $/;
138     warn "### to_count = ",dump( $to_count ), $/;
139    
140     my $template = $pos_templates->{ $from_count_key } ||
141     die "I don't have template for:\n$from_count_key\n## available templates\n", dump( $pos_templates );
142    
143     warn "### selected template: |$template|\n";
144    
145     $fill_in = {};
146    
147     my @templates = split(/\|/, $template );
148     @templates = ( $template );
149    
150     foreach my $sf ( @templates ) {
151     sub fill_in {
152     my ( $r, $sf, $nr ) = @_;
153     my ( $from_sf, $from_nr ) = @{ $new_r->{ $sf }->[ $nr ] };
154     my $v = $r->{ $from_sf }; # || die "no $from_sf/$from_nr";
155     warn "#### fill_in( $sf, $nr ) = $from_sf/$from_nr >>>> ",dump( $v ), $/;
156     if ( ref( $v ) eq 'ARRAY' ) {
157     $fill_in->{$sf}->[$nr] = $v->[$from_nr];
158     return $v->[$from_nr];
159     } elsif ( $from_nr == 0 ) {
160     $fill_in->{$sf}->[$nr] = $v;
161     return $v;
162     } else {
163     die "requested subfield $from_sf/$from_nr but it's ",dump( $v );
164     }
165     }
166     warn "#### $sf <<<< $fields_re\n";
167     $sf =~ s/($fields_re)(\d+)/fill_in($r,$1,$2)/ge;
168     warn "#### >>>> $sf with fill_in = ",dump( $fill_in ),$/;
169     }
170    
171     warn "## template: |$template|\n## marc_template_order = ",dump( $marc_template_order );
172    
173     foreach my $sf ( @{ $marc_template_order->{$template} } ) {
174     my ( $sf, $nr ) = @$sf;
175     my $v = $fill_in->{$sf}->[$nr] || die "can't find fill_in $sf/$nr";
176     warn "++ $sf/$nr |$v|\n";
177     push @$m, ( $sf, $v );
178     }
179    
180     warn "#### >>>> created marc: ", dump( $m );
181    
182     push @marc_out, $m;
183     }
184    
185     warn "### marc_template produced: ",dump( @marc_out );
186    
187     foreach my $marc ( @marc_out ) {
188     warn "+++ ",dump( $marc );
189     WebPAC::Normalize::_marc_push( $marc );
190     }
191     }
192    
193     1;

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