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package WebPAC::Normalize::ISBN; |
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use Exporter 'import'; |
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@EXPORT = qw/ |
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isbn_13 |
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isbn_10 |
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/; |
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|
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use warnings; |
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use strict; |
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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 Business::ISBN; |
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|
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my $debug = 0; |
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|
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=head1 NAME |
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|
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WebPAC::Normalize::ISBN - work with ISBN numbers |
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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 isbn_13 |
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|
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my @isbns = isbn_13( rec('10') ); |
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|
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=cut |
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|
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sub isbn_13 { |
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my @out; |
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|
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foreach my $isbn ( @_ ) { |
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|
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next unless $isbn =~ m/\d/; |
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|
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my $i = Business::ISBN->new( $isbn ); |
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if ( ! $i ) { |
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warn "ERROR: ISBN not valid: $isbn\n"; |
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} else { |
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push @out, $i->as_isbn13->as_string; |
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} |
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} |
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|
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warn "### isbn13",dump( @_ )," => ",dump( @out ) if $debug; |
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|
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return @out; |
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} |
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|
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=head2 isbn_10 |
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|
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my @isbns = isbn_10( rec('10') ); |
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|
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=cut |
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|
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sub isbn_10 { |
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my @out; |
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|
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foreach my $isbn ( @_ ) { |
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|
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next unless $isbn =~ m/\d/; |
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|
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my $i = Business::ISBN->new( $isbn ); |
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if ( ! $i ) { |
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warn "ERROR: ISBN not valid: $isbn\n"; |
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} else { |
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push @out, $i->as_isbn10->as_string; |
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} |
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} |
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|
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warn "### isbn10",dump( @_ )," => ",dump( @out ) if $debug; |
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|
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return @out; |
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} |
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|
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1; |