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package WebPAC::Normalize; |
package WebPAC::Normalize; |
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use Exporter 'import'; |
use Exporter 'import'; |
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@EXPORT = qw/ |
our @EXPORT = qw/ |
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_set_rec _set_lookup |
_set_ds _set_lookup |
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_set_load_row |
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_get_ds _clean_ds |
_get_ds _clean_ds |
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_debug |
_debug |
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_pack_subfields_hash |
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tag search display |
to |
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marc marc_indicators marc_repeatable_subfield |
search_display search display sorted |
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marc_compose marc_leader |
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rec1 rec2 rec |
rec1 rec2 rec |
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frec frec_eq frec_ne |
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regex prefix suffix surround |
regex prefix suffix surround |
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first lookup join_with |
first lookup join_with |
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save_into_lookup |
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split_rec_on |
split_rec_on |
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get set |
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count |
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/; |
/; |
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use warnings; |
use warnings; |
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#use base qw/WebPAC::Common/; |
#use base qw/WebPAC::Common/; |
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use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
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use Encode qw/from_to/; |
use Carp qw/confess/; |
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# debugging warn(s) |
# debugging warn(s) |
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my $debug = 0; |
my $debug = 0; |
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_debug( $debug ); |
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# FIXME |
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use WebPAC::Normalize::ISBN; |
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push @EXPORT, ( 'isbn_10', 'isbn_13' ); |
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use WebPAC::Normalize::MARC; |
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push @EXPORT, ( qw/ |
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marc marc_indicators marc_repeatable_subfield |
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marc_compose marc_leader marc_fixed |
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marc_duplicate marc_remove marc_count |
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marc_original_order |
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marc_template |
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/); |
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=head1 NAME |
=head1 NAME |
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WebPAC::Normalize - describe normalisaton rules using sets |
WebPAC::Normalize - describe normalisaton rules using sets |
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=head1 VERSION |
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Version 0.09 |
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=cut |
=cut |
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our $VERSION = '0.09'; |
our $VERSION = '0.36'; |
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=head1 SYNOPSIS |
=head1 SYNOPSIS |
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C<perl -c normalize.pl>. |
C<perl -c normalize.pl>. |
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Normalisation can generate multiple output normalized data. For now, supported output |
Normalisation can generate multiple output normalized data. For now, supported output |
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types (on the left side of definition) are: C<tag>, C<display>, C<search> and |
types (on the left side of definition) are: C<search_display>, C<display>, C<search> and |
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C<marc>. |
C<marc>. |
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=head1 FUNCTIONS |
=head1 FUNCTIONS |
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Return data structure |
Return data structure |
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my $ds = WebPAC::Normalize::data_structure( |
my $ds = WebPAC::Normalize::data_structure( |
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lookup => $lookup->lookup_hash, |
lookup => $lookup_hash, |
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row => $row, |
row => $row, |
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rules => $normalize_pl_config, |
rules => $normalize_pl_config, |
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marc_encoding => 'utf-8', |
marc_encoding => 'utf-8', |
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config => $config, |
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load_row_coderef => sub { |
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my ($database,$input,$mfn) = @_; |
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$store->load_row( database => $database, input => $input, id => $mfn ); |
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}, |
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); |
); |
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Options C<lookup>, C<row>, C<rules> and C<log> are mandatory while all |
Options C<row>, C<rules> and C<log> are mandatory while all |
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other are optional. |
other are optional. |
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C<load_row_coderef> is closure only used when executing lookups, so they will |
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die if it's not defined. |
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This function will B<die> if normalizastion can't be evaled. |
This function will B<die> if normalizastion can't be evaled. |
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Since this function isn't exported you have to call it with |
Since this function isn't exported you have to call it with |
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=cut |
=cut |
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my $load_row_coderef; |
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sub data_structure { |
sub data_structure { |
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my $arg = {@_}; |
my $arg = {@_}; |
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die "need row argument" unless ($arg->{row}); |
die "need row argument" unless ($arg->{row}); |
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die "need normalisation argument" unless ($arg->{rules}); |
die "need normalisation argument" unless ($arg->{rules}); |
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no strict 'subs'; |
_set_lookup( $arg->{lookup} ) if defined($arg->{lookup}); |
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_set_lookup( $arg->{lookup} ); |
_set_ds( $arg->{row} ); |
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_set_rec( $arg->{row} ); |
_set_config( $arg->{config} ) if defined($arg->{config}); |
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_clean_ds( %{ $arg } ); |
_clean_ds( %{ $arg } ); |
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eval "$arg->{rules}"; |
$load_row_coderef = $arg->{load_row_coderef}; |
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no strict 'subs'; |
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no warnings 'redefine'; |
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eval "$arg->{rules};"; |
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die "error evaling $arg->{rules}: $@\n" if ($@); |
die "error evaling $arg->{rules}: $@\n" if ($@); |
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return _get_ds(); |
return _get_ds(); |
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} |
} |
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=head2 _set_rec |
=head2 _set_ds |
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Set current record hash |
Set current record hash |
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_set_rec( $rec ); |
_set_ds( $rec ); |
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=cut |
=cut |
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my $rec; |
my $rec; |
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sub _set_rec { |
sub _set_ds { |
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$rec = shift or die "no record hash"; |
$rec = shift or die "no record hash"; |
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$WebPAC::Normalize::MARC::rec = $rec; |
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} |
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=head2 |
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my $rec = _get_rec(); |
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=cut |
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sub _get_rec { $rec }; |
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=head2 _set_config |
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Set current config hash |
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_set_config( $config ); |
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Magic keys are: |
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=over 4 |
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=item _ |
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Code of current database |
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=item _mfn |
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Current MFN |
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=back |
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=cut |
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my $config; |
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sub _set_config { |
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$config = shift; |
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} |
} |
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=head2 _get_ds |
=head2 _get_ds |
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=cut |
=cut |
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my ($out,$marc_record, $marc_encoding, $marc_repeatable_subfield, $marc_indicators); |
my $out; |
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sub _get_ds { |
sub _get_ds { |
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#warn "## out = ",dump($out); |
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return $out; |
return $out; |
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} |
} |
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sub _clean_ds { |
sub _clean_ds { |
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my $a = {@_}; |
my $a = {@_}; |
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($out,$marc_record, $marc_encoding, $marc_repeatable_subfield, $marc_indicators) = (); |
$out = undef; |
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$marc_encoding = $a->{marc_encoding}; |
WebPAC::Normalize::MARC::_clean(); |
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} |
} |
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=head2 _set_lookup |
=head2 _set_lookup |
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$lookup = shift; |
$lookup = shift; |
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} |
} |
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=head2 _get_marc_fields |
=head2 _get_lookup |
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Get all fields defined by calls to C<marc> |
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$marc->add_fields( WebPAC::Normalize:_get_marc_fields() ); |
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We are using I<magic> which detect repeatable fields only from |
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sequence of field/subfield data generated by normalization. |
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Repeatable field is created when there is second occurence of same subfield or |
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if any of indicators are different. |
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This is sane for most cases. Something like: |
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900a-1 900b-1 900c-1 |
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900a-2 900b-2 |
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900a-3 |
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will be created from any combination of: |
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900a-1 900a-2 900a-3 900b-1 900b-2 900c-1 |
Get current lookup hash |
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and following rules: |
my $lookup = _get_lookup(); |
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marc('900','a', rec('200','a') ); |
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marc('900','b', rec('200','b') ); |
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marc('900','c', rec('200','c') ); |
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which might not be what you have in mind. If you need repeatable subfield, |
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define it using C<marc_repeatable_subfield> like this: |
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.... |
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=cut |
=cut |
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sub _get_marc_fields { |
sub _get_lookup { |
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return $lookup; |
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return if (! $marc_record || ref($marc_record) ne 'ARRAY' || $#{ $marc_record } < 0); |
} |
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# first, sort all existing fields |
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# XXX might not be needed, but modern perl might randomize elements in hash |
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my @sorted_marc_record = sort { |
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$a->[0] . ( $a->[3] || '' ) cmp $b->[0] . ( $b->[3] || '') |
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} @{ $marc_record }; |
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@sorted_marc_record = @{ $marc_record }; ### FIXME disable sorting |
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# output marc fields |
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my @m; |
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# count unique field-subfields (used for offset when walking to next subfield) |
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my $u; |
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map { $u->{ $_->[0] . ( $_->[3] || '') }++ } @sorted_marc_record; |
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if ($debug) { |
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warn "## marc_repeatable_subfield ", dump( $marc_repeatable_subfield ), $/; |
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warn "## marc_record ", dump( $marc_record ), $/; |
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warn "## sorted_marc_record ", dump( \@sorted_marc_record ), $/; |
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warn "## subfield count ", dump( $u ), $/; |
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} |
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my $len = $#sorted_marc_record; |
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my $visited; |
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my $i = 0; |
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my $field; |
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foreach ( 0 .. $len ) { |
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# find next element which isn't visited |
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while ($visited->{$i}) { |
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$i = ($i + 1) % ($len + 1); |
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} |
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# mark it visited |
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$visited->{$i}++; |
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my $row = $sorted_marc_record[$i]; |
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# field and subfield which is key for |
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# marc_repeatable_subfield and u |
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my $fsf = $row->[0] . ( $row->[3] || '' ); |
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if ($debug > 1) { |
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print "### field so far [", $#$field, "] : ", dump( $field ), " ", $field ? 'T' : 'F', $/; |
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print "### this [$i]: ", dump( $row ),$/; |
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print "### sf: ", $row->[3], " vs ", $field->[3], |
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$marc_repeatable_subfield->{ $row->[0] . $row->[3] } ? ' (repeatable)' : '', $/, |
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if ($#$field >= 0); |
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} |
=head2 _set_load_row |
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# if field exists |
Setup code reference which will return L<data_structure> from |
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if ( $#$field >= 0 ) { |
L<WebPAC::Store> |
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if ( |
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$row->[0] ne $field->[0] || # field |
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$row->[1] ne $field->[1] || # i1 |
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$row->[2] ne $field->[2] # i2 |
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) { |
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push @m, $field; |
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warn "## saved/1 ", dump( $field ),$/ if ($debug); |
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$field = $row; |
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} elsif ( |
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( $row->[3] lt $field->[-2] ) # subfield which is not next (e.g. a after c) |
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|| |
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( $row->[3] eq $field->[-2] && # same subfield, but not repeatable |
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! $marc_repeatable_subfield->{ $fsf } |
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) |
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) { |
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push @m, $field; |
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warn "## saved/2 ", dump( $field ),$/ if ($debug); |
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$field = $row; |
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} else { |
_set_load_row(sub { |
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# append new subfields to existing field |
my ($database,$input,$mfn) = @_; |
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push @$field, ( $row->[3], $row->[4] ); |
$store->load_row( database => $database, input => $input, id => $mfn ); |
242 |
} |
}); |
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} else { |
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# insert first field |
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$field = $row; |
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} |
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if (! $marc_repeatable_subfield->{ $fsf }) { |
=cut |
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# make step to next subfield |
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$i = ($i + $u->{ $fsf } ) % ($len + 1); |
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} |
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} |
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if ($#$field >= 0) { |
sub _set_load_row { |
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push @m, $field; |
my $coderef = shift; |
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warn "## saved/3 ", dump( $field ),$/ if ($debug); |
confess "argument isn't CODE" unless ref($coderef) eq 'CODE'; |
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} |
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return @m; |
$load_row_coderef = $coderef; |
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} |
} |
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=head2 _debug |
=head2 _debug |
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return $debug unless defined($l); |
return $debug unless defined($l); |
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warn "debug level $l",$/ if ($l > 0); |
warn "debug level $l",$/ if ($l > 0); |
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$debug = $l; |
$debug = $l; |
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$WebPAC::Normalize::MARC::debug = $debug; |
267 |
} |
} |
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=head1 Functions to create C<data_structure> |
=head1 Functions to create C<data_structure> |
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Those functions generally have to first in your normalization file. |
Those functions generally have to first in your normalization file. |
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=head2 tag |
=head2 to |
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Define new tag for I<search> and I<display>. |
Generic way to set values for some name |
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tag('Title', rec('200','a') ); |
to('field-name', 'name-value' => rec('200','a') ); |
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There are many helpers defined below which might be easier to use. |
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=cut |
=cut |
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sub tag { |
sub to { |
284 |
my $name = shift or die "tag needs name as first argument"; |
my $type = shift or confess "need type -- BUG?"; |
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my $name = shift or confess "needs name as first argument"; |
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my @o = grep { defined($_) && $_ ne '' } @_; |
my @o = grep { defined($_) && $_ ne '' } @_; |
287 |
return unless (@o); |
return unless (@o); |
288 |
$out->{$name}->{tag} = $name; |
$out->{$name}->{$type} = \@o; |
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$out->{$name}->{search} = \@o; |
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$out->{$name}->{display} = \@o; |
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} |
} |
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=head2 display |
=head2 search_display |
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Define tag just for I<display> |
Define output for L<search> and L<display> at the same time |
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@v = display('Title', rec('200','a') ); |
search_display('Title', rec('200','a') ); |
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=cut |
=cut |
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sub display { |
sub search_display { |
300 |
my $name = shift or die "display needs name as first argument"; |
my $name = shift or die "search_display needs name as first argument"; |
301 |
my @o = grep { defined($_) && $_ ne '' } @_; |
my @o = grep { defined($_) && $_ ne '' } @_; |
302 |
return unless (@o); |
return unless (@o); |
303 |
$out->{$name}->{tag} = $name; |
$out->{$name}->{search} = \@o; |
304 |
$out->{$name}->{display} = \@o; |
$out->{$name}->{display} = \@o; |
305 |
} |
} |
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=head2 search |
=head2 tag |
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Prepare values just for I<search> |
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@v = search('Title', rec('200','a') ); |
Old name for L<search_display>, it will probably be removed at one point. |
310 |
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311 |
=cut |
=cut |
312 |
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313 |
sub search { |
sub tag { |
314 |
my $name = shift or die "search needs name as first argument"; |
search_display( @_ ); |
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my @o = grep { defined($_) && $_ ne '' } @_; |
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return unless (@o); |
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$out->{$name}->{tag} = $name; |
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$out->{$name}->{search} = \@o; |
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315 |
} |
} |
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=head2 marc_leader |
=head2 display |
318 |
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Setup fields within MARC leader or get leader |
Define output just for I<display> |
320 |
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marc_leader('05','c'); |
@v = display('Title', rec('200','a') ); |
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my $leader = marc_leader(); |
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323 |
=cut |
=cut |
324 |
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325 |
sub marc_leader { |
sub display { to( 'display', @_ ) } |
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my ($offset,$value) = @_; |
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327 |
if ($offset) { |
=head2 search |
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$out->{' leader'}->{ $offset } = $value; |
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} else { |
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return $out->{' leader'}; |
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} |
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} |
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=head2 marc |
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Save value for MARC field |
Prepare values just for I<search> |
330 |
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marc('900','a', rec('200','a') ); |
@v = search('Title', rec('200','a') ); |
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marc('001', rec('000') ); |
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333 |
=cut |
=cut |
334 |
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335 |
sub marc { |
sub search { to( 'search', @_ ) } |
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my $f = shift or die "marc needs field"; |
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die "marc field must be numer" unless ($f =~ /^\d+$/); |
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my $sf; |
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if ($f >= 10) { |
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$sf = shift or die "marc needs subfield"; |
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} |
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foreach (@_) { |
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my $v = $_; # make var read-write for Encode |
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next unless (defined($v) && $v !~ /^\s*$/); |
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from_to($v, 'iso-8859-2', $marc_encoding) if ($marc_encoding); |
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my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
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if (defined $sf) { |
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push @{ $marc_record }, [ $f, $i1, $i2, $sf => $v ]; |
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|
} else { |
|
|
push @{ $marc_record }, [ $f, $v ]; |
|
|
} |
|
|
} |
|
|
} |
|
336 |
|
|
337 |
=head2 marc_repeatable_subfield |
=head2 sorted |
338 |
|
|
339 |
Save values for MARC repetable subfield |
Insert into lists which will be automatically sorted |
340 |
|
|
341 |
marc_repeatable_subfield('910', 'z', rec('909') ); |
sorted('Title', rec('200','a') ); |
342 |
|
|
343 |
=cut |
=cut |
344 |
|
|
345 |
sub marc_repeatable_subfield { |
sub sorted { to( 'sorted', @_ ) } |
|
my ($f,$sf) = @_; |
|
|
die "marc_repeatable_subfield need field and subfield!\n" unless ($f && $sf); |
|
|
$marc_repeatable_subfield->{ $f . $sf }++; |
|
|
marc(@_); |
|
|
} |
|
|
|
|
|
=head2 marc_indicators |
|
|
|
|
|
Set both indicators for MARC field |
|
|
|
|
|
marc_indicators('900', ' ', 1); |
|
346 |
|
|
|
Any indicator value other than C<0-9> will be treated as undefined. |
|
347 |
|
|
348 |
=cut |
=head1 Functions to extract data from input |
|
|
|
|
sub marc_indicators { |
|
|
my $f = shift || die "marc_indicators need field!\n"; |
|
|
my ($i1,$i2) = @_; |
|
|
die "marc_indicators($f, ...) need i1!\n" unless(defined($i1)); |
|
|
die "marc_indicators($f, $i1, ...) need i2!\n" unless(defined($i2)); |
|
349 |
|
|
350 |
$i1 = ' ' if ($i1 !~ /^\d$/); |
This function should be used inside functions to create C<data_structure> described |
351 |
$i2 = ' ' if ($i2 !~ /^\d$/); |
above. |
|
@{ $marc_indicators->{$f} } = ($i1,$i2); |
|
|
} |
|
352 |
|
|
353 |
=head2 marc_compose |
=head2 _pack_subfields_hash |
354 |
|
|
355 |
Save values for each MARC subfield explicitly |
@subfields = _pack_subfields_hash( $h ); |
356 |
|
$subfields = _pack_subfields_hash( $h, 1 ); |
357 |
|
|
358 |
marc_compose('900', |
Return each subfield value in array or pack them all together and return scalar |
359 |
'a', rec('200','a') |
with subfields (denoted by C<^>) and values. |
|
'b', rec('201','a') |
|
|
'a', rec('200','b') |
|
|
'c', rec('200','c') |
|
|
); |
|
360 |
|
|
361 |
=cut |
=cut |
362 |
|
|
363 |
sub marc_compose { |
sub _pack_subfields_hash { |
|
my $f = shift or die "marc_compose needs field"; |
|
|
die "marc_compose field must be numer" unless ($f =~ /^\d+$/); |
|
364 |
|
|
365 |
my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
warn "## _pack_subfields_hash( ",dump(@_), " )\n" if ($debug > 1); |
|
my $m = [ $f, $i1, $i2 ]; |
|
366 |
|
|
367 |
while (@_) { |
my ($h,$include_subfields) = @_; |
|
my $sf = shift or die "marc_compose $f needs subfield"; |
|
|
my $v = shift; |
|
368 |
|
|
369 |
next unless (defined($v) && $v !~ /^\s*$/); |
# sanity and ease of use |
370 |
from_to($v, 'iso-8859-2', $marc_encoding) if ($marc_encoding); |
return $h if (ref($h) ne 'HASH'); |
|
push @$m, ( $sf, $v ); |
|
|
warn "## ++ marc_compose($f,$sf,$v) ", dump( $m ),$/ if ($debug > 1); |
|
|
} |
|
371 |
|
|
372 |
warn "## marc_compose(d) ", dump( $m ),$/ if ($debug > 1); |
if ( defined($h->{subfields}) ) { |
373 |
|
my $sfs = delete $h->{subfields} || die "no subfields?"; |
374 |
|
my @out; |
375 |
|
while (@$sfs) { |
376 |
|
my $sf = shift @$sfs; |
377 |
|
push @out, '^' . $sf if ($include_subfields); |
378 |
|
my $o = shift @$sfs; |
379 |
|
if ($o == 0 && ref( $h->{$sf} ) ne 'ARRAY' ) { |
380 |
|
# single element subfields are not arrays |
381 |
|
#warn "====> $sf $o / $#$sfs ", dump( $sfs, $h->{$sf} ), "\n"; |
382 |
|
|
383 |
push @{ $marc_record }, $m if ($#{$m} > 2); |
push @out, $h->{$sf}; |
384 |
|
} else { |
385 |
|
#warn "====> $sf $o / $#$sfs ", dump( $sfs, $h->{$sf} ), "\n"; |
386 |
|
push @out, $h->{$sf}->[$o]; |
387 |
|
} |
388 |
|
} |
389 |
|
if ($include_subfields) { |
390 |
|
return join('', @out); |
391 |
|
} else { |
392 |
|
return @out; |
393 |
|
} |
394 |
|
} else { |
395 |
|
if ($include_subfields) { |
396 |
|
my $out = ''; |
397 |
|
foreach my $sf (sort keys %$h) { |
398 |
|
if (ref($h->{$sf}) eq 'ARRAY') { |
399 |
|
$out .= '^' . $sf . join('^' . $sf, @{ $h->{$sf} }); |
400 |
|
} else { |
401 |
|
$out .= '^' . $sf . $h->{$sf}; |
402 |
|
} |
403 |
|
} |
404 |
|
return $out; |
405 |
|
} else { |
406 |
|
# FIXME this should probably be in alphabetical order instead of hash order |
407 |
|
values %{$h}; |
408 |
|
} |
409 |
|
} |
410 |
} |
} |
411 |
|
|
|
|
|
|
=head1 Functions to extract data from input |
|
|
|
|
|
This function should be used inside functions to create C<data_structure> described |
|
|
above. |
|
|
|
|
412 |
=head2 rec1 |
=head2 rec1 |
413 |
|
|
414 |
Return all values in some field |
Return all values in some field |
425 |
return unless (defined($rec) && defined($rec->{$f})); |
return unless (defined($rec) && defined($rec->{$f})); |
426 |
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
427 |
if (ref($rec->{$f}) eq 'ARRAY') { |
if (ref($rec->{$f}) eq 'ARRAY') { |
428 |
return map { |
my @out; |
429 |
if (ref($_) eq 'HASH') { |
foreach my $h ( @{ $rec->{$f} } ) { |
430 |
values %{$_}; |
if (ref($h) eq 'HASH') { |
431 |
|
push @out, ( _pack_subfields_hash( $h ) ); |
432 |
} else { |
} else { |
433 |
$_; |
push @out, $h; |
434 |
} |
} |
435 |
} @{ $rec->{$f} }; |
} |
436 |
|
return @out; |
437 |
} elsif( defined($rec->{$f}) ) { |
} elsif( defined($rec->{$f}) ) { |
438 |
return $rec->{$f}; |
return $rec->{$f}; |
439 |
} |
} |
451 |
my $f = shift; |
my $f = shift; |
452 |
return unless (defined($rec && $rec->{$f})); |
return unless (defined($rec && $rec->{$f})); |
453 |
my $sf = shift; |
my $sf = shift; |
454 |
return map { $_->{$sf} } grep { ref($_) eq 'HASH' && $_->{$sf} } @{ $rec->{$f} }; |
warn "rec2($f,$sf) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
455 |
|
return map { |
456 |
|
if (ref($_->{$sf}) eq 'ARRAY') { |
457 |
|
@{ $_->{$sf} }; |
458 |
|
} else { |
459 |
|
$_->{$sf}; |
460 |
|
} |
461 |
|
} grep { ref($_) eq 'HASH' && defined $_->{$sf} } @{ $rec->{$f} }; |
462 |
} |
} |
463 |
|
|
464 |
=head2 rec |
=head2 rec |
468 |
@v = rec('200') |
@v = rec('200') |
469 |
@v = rec('200','a') |
@v = rec('200','a') |
470 |
|
|
471 |
|
If rec() returns just single value, it will |
472 |
|
return scalar, not array. |
473 |
|
|
474 |
=cut |
=cut |
475 |
|
|
476 |
sub rec { |
sub rec { |
477 |
|
my @out; |
478 |
if ($#_ == 0) { |
if ($#_ == 0) { |
479 |
return rec1(@_); |
@out = rec1(@_); |
480 |
} elsif ($#_ == 1) { |
} elsif ($#_ == 1) { |
481 |
return rec2(@_); |
@out = rec2(@_); |
482 |
|
} |
483 |
|
if ($#out == 0 && ! wantarray) { |
484 |
|
return $out[0]; |
485 |
|
} elsif (@out) { |
486 |
|
return @out; |
487 |
|
} else { |
488 |
|
return ''; |
489 |
} |
} |
490 |
} |
} |
491 |
|
|
492 |
|
=head2 frec |
493 |
|
|
494 |
|
Returns first value from field |
495 |
|
|
496 |
|
$v = frec('200'); |
497 |
|
$v = frec('200','a'); |
498 |
|
|
499 |
|
=cut |
500 |
|
|
501 |
|
sub frec { |
502 |
|
my @out = rec(@_); |
503 |
|
warn "rec(",dump(@_),") has more than one return value, ignoring\n" if $#out > 0; |
504 |
|
return shift @out; |
505 |
|
} |
506 |
|
|
507 |
|
=head2 frec_eq |
508 |
|
|
509 |
|
=head2 frec_ne |
510 |
|
|
511 |
|
Check if first values from two fields are same or different |
512 |
|
|
513 |
|
if ( frec_eq( 900 => 'a', 910 => 'c' ) ) { |
514 |
|
# values are same |
515 |
|
} else { |
516 |
|
# values are different |
517 |
|
} |
518 |
|
|
519 |
|
Strictly speaking C<frec_eq> and C<frec_ne> wouldn't be needed if you |
520 |
|
could write something like: |
521 |
|
|
522 |
|
if ( frec( '900','a' ) eq frec( '910','c' ) ) { |
523 |
|
# yada tada |
524 |
|
} |
525 |
|
|
526 |
|
but you can't since our parser L<WebPAC::Parser> will remove all whitespaces |
527 |
|
in order to parse text and create invalid function C<eqfrec>. |
528 |
|
|
529 |
|
=cut |
530 |
|
|
531 |
|
sub frec_eq { |
532 |
|
my ( $f1,$sf1, $f2, $sf2 ) = @_; |
533 |
|
return (rec( $f1, $sf1 ))[0] eq (rec( $f2, $sf2 ))[0]; |
534 |
|
} |
535 |
|
|
536 |
|
sub frec_ne { |
537 |
|
return ! frec_eq( @_ ); |
538 |
|
} |
539 |
|
|
540 |
=head2 regex |
=head2 regex |
541 |
|
|
542 |
Apply regex to some or all values |
Apply regex to some or all values |
566 |
=cut |
=cut |
567 |
|
|
568 |
sub prefix { |
sub prefix { |
569 |
my $p = shift or die "prefix needs string as first argument"; |
my $p = shift; |
570 |
|
return @_ unless defined( $p ); |
571 |
return map { $p . $_ } grep { defined($_) } @_; |
return map { $p . $_ } grep { defined($_) } @_; |
572 |
} |
} |
573 |
|
|
580 |
=cut |
=cut |
581 |
|
|
582 |
sub suffix { |
sub suffix { |
583 |
my $s = shift or die "suffix needs string as first argument"; |
my $s = shift; |
584 |
|
return @_ unless defined( $s ); |
585 |
return map { $_ . $s } grep { defined($_) } @_; |
return map { $_ . $s } grep { defined($_) } @_; |
586 |
} |
} |
587 |
|
|
594 |
=cut |
=cut |
595 |
|
|
596 |
sub surround { |
sub surround { |
597 |
my $p = shift or die "surround need prefix as first argument"; |
my $p = shift; |
598 |
my $s = shift or die "surround needs suffix as second argument"; |
my $s = shift; |
599 |
|
$p = '' unless defined( $p ); |
600 |
|
$s = '' unless defined( $s ); |
601 |
return map { $p . $_ . $s } grep { defined($_) } @_; |
return map { $p . $_ . $s } grep { defined($_) } @_; |
602 |
} |
} |
603 |
|
|
618 |
|
|
619 |
Consult lookup hashes for some value |
Consult lookup hashes for some value |
620 |
|
|
621 |
@v = lookup( $v ); |
@v = lookup( |
622 |
@v = lookup( @v ); |
sub { |
623 |
|
'ffkk/peri/mfn'.rec('000') |
624 |
|
}, |
625 |
|
'ffkk','peri','200-a-200-e', |
626 |
|
sub { |
627 |
|
first(rec(200,'a')).' '.first(rec('200','e')) |
628 |
|
} |
629 |
|
); |
630 |
|
|
631 |
|
Code like above will be B<automatically generated> using L<WebPAC::Parse> from |
632 |
|
normal lookup definition in C<conf/lookup/something.pl> which looks like: |
633 |
|
|
634 |
|
lookup( |
635 |
|
# which results to return from record recorded in lookup |
636 |
|
sub { 'ffkk/peri/mfn' . rec('000') }, |
637 |
|
# from which database and input |
638 |
|
'ffkk','peri', |
639 |
|
# such that following values match |
640 |
|
sub { first(rec(200,'a')) . ' ' . first(rec('200','e')) }, |
641 |
|
# if this part is missing, we will try to match same fields |
642 |
|
# from lookup record and current one, or you can override |
643 |
|
# which records to use from current record using |
644 |
|
sub { rec('900','x') . ' ' . rec('900','y') }, |
645 |
|
) |
646 |
|
|
647 |
|
You can think about this lookup as SQL (if that helps): |
648 |
|
|
649 |
|
select |
650 |
|
sub { what } |
651 |
|
from |
652 |
|
database, input |
653 |
|
where |
654 |
|
sub { filter from lookuped record } |
655 |
|
having |
656 |
|
sub { optional filter on current record } |
657 |
|
|
658 |
|
Easy as pie, right? |
659 |
|
|
660 |
=cut |
=cut |
661 |
|
|
662 |
sub lookup { |
sub lookup { |
663 |
my $k = shift or return; |
my ($what, $database, $input, $key, $having) = @_; |
664 |
return unless (defined($lookup->{$k})); |
|
665 |
if (ref($lookup->{$k}) eq 'ARRAY') { |
confess "lookup needs 5 arguments: what, database, input, key, having\n" unless ($#_ == 4); |
666 |
return @{ $lookup->{$k} }; |
|
667 |
|
warn "## lookup ($database, $input, $key)", $/ if ($debug > 1); |
668 |
|
return unless (defined($lookup->{$database}->{$input}->{$key})); |
669 |
|
|
670 |
|
confess "lookup really need load_row_coderef added to data_structure\n" unless ($load_row_coderef); |
671 |
|
|
672 |
|
my $mfns; |
673 |
|
my @having = $having->(); |
674 |
|
|
675 |
|
warn "## having = ", dump( @having ) if ($debug > 2); |
676 |
|
|
677 |
|
foreach my $h ( @having ) { |
678 |
|
if (defined($lookup->{$database}->{$input}->{$key}->{$h})) { |
679 |
|
warn "lookup for $database/$input/$key/$h return ",dump($lookup->{$database}->{$input}->{$key}->{$h}),"\n" if ($debug); |
680 |
|
$mfns->{$_}++ foreach keys %{ $lookup->{$database}->{$input}->{$key}->{$h} }; |
681 |
|
} |
682 |
|
} |
683 |
|
|
684 |
|
return unless ($mfns); |
685 |
|
|
686 |
|
my @mfns = sort keys %$mfns; |
687 |
|
|
688 |
|
warn "# lookup loading $database/$input/$key mfn ", join(",",@mfns)," having ",dump(@having),"\n" if ($debug); |
689 |
|
|
690 |
|
my $old_rec = $rec; |
691 |
|
my @out; |
692 |
|
|
693 |
|
foreach my $mfn (@mfns) { |
694 |
|
$rec = $load_row_coderef->( $database, $input, $mfn ); |
695 |
|
|
696 |
|
warn "got $database/$input/$mfn = ", dump($rec), $/ if ($debug); |
697 |
|
|
698 |
|
my @vals = $what->(); |
699 |
|
|
700 |
|
push @out, ( @vals ); |
701 |
|
|
702 |
|
warn "lookup for mfn $mfn returned ", dump(@vals), $/ if ($debug); |
703 |
|
} |
704 |
|
|
705 |
|
# if (ref($lookup->{$k}) eq 'ARRAY') { |
706 |
|
# return @{ $lookup->{$k} }; |
707 |
|
# } else { |
708 |
|
# return $lookup->{$k}; |
709 |
|
# } |
710 |
|
|
711 |
|
$rec = $old_rec; |
712 |
|
|
713 |
|
warn "## lookup returns = ", dump(@out), $/ if ($debug); |
714 |
|
|
715 |
|
if ($#out == 0) { |
716 |
|
return $out[0]; |
717 |
} else { |
} else { |
718 |
return $lookup->{$k}; |
return @out; |
719 |
} |
} |
720 |
} |
} |
721 |
|
|
722 |
|
=head2 save_into_lookup |
723 |
|
|
724 |
|
Save value into lookup. It associates current database, input |
725 |
|
and specific keys with one or more values which will be |
726 |
|
associated over MFN. |
727 |
|
|
728 |
|
MFN will be extracted from first occurence current of field 000 |
729 |
|
in current record, or if it doesn't exist from L<_set_config> C<_mfn>. |
730 |
|
|
731 |
|
my $nr = save_into_lookup($database,$input,$key,sub { |
732 |
|
# code which produce one or more values |
733 |
|
}); |
734 |
|
|
735 |
|
It returns number of items saved. |
736 |
|
|
737 |
|
This function shouldn't be called directly, it's called from code created by |
738 |
|
L<WebPAC::Parser>. |
739 |
|
|
740 |
|
=cut |
741 |
|
|
742 |
|
sub save_into_lookup { |
743 |
|
my ($database,$input,$key,$coderef) = @_; |
744 |
|
die "save_into_lookup needs database" unless defined($database); |
745 |
|
die "save_into_lookup needs input" unless defined($input); |
746 |
|
die "save_into_lookup needs key" unless defined($key); |
747 |
|
die "save_into_lookup needs CODE" unless ( defined($coderef) && ref($coderef) eq 'CODE' ); |
748 |
|
|
749 |
|
warn "## save_into_lookup rec = ", dump($rec), " config = ", dump($config), $/ if ($debug > 2); |
750 |
|
|
751 |
|
my $mfn = |
752 |
|
defined($rec->{'000'}->[0]) ? $rec->{'000'}->[0] : |
753 |
|
defined($config->{_mfn}) ? $config->{_mfn} : |
754 |
|
die "mfn not defined or zero"; |
755 |
|
|
756 |
|
my $nr = 0; |
757 |
|
|
758 |
|
foreach my $v ( $coderef->() ) { |
759 |
|
$lookup->{$database}->{$input}->{$key}->{$v}->{$mfn}++; |
760 |
|
warn "# saved lookup $database/$input/$key [$v] $mfn\n" if ($debug > 1); |
761 |
|
$nr++; |
762 |
|
} |
763 |
|
|
764 |
|
return $nr; |
765 |
|
} |
766 |
|
|
767 |
|
=head2 config |
768 |
|
|
769 |
|
Consult config values stored in C<config.yml> |
770 |
|
|
771 |
|
# return database code (key under databases in yaml) |
772 |
|
$database_code = config(); # use _ from hash |
773 |
|
$database_name = config('name'); |
774 |
|
$database_input_name = config('input name'); |
775 |
|
|
776 |
|
Up to three levels are supported. |
777 |
|
|
778 |
|
=cut |
779 |
|
|
780 |
|
sub config { |
781 |
|
return unless ($config); |
782 |
|
|
783 |
|
my $p = shift; |
784 |
|
|
785 |
|
$p ||= ''; |
786 |
|
|
787 |
|
my $v; |
788 |
|
|
789 |
|
warn "### getting config($p)\n" if ($debug > 1); |
790 |
|
|
791 |
|
my @p = split(/\s+/,$p); |
792 |
|
if ($#p < 0) { |
793 |
|
$v = $config->{ '_' }; # special, database code |
794 |
|
} else { |
795 |
|
|
796 |
|
my $c = dclone( $config ); |
797 |
|
|
798 |
|
foreach my $k (@p) { |
799 |
|
warn "### k: $k c = ",dump($c),$/ if ($debug > 1); |
800 |
|
if (ref($c) eq 'ARRAY') { |
801 |
|
$c = shift @$c; |
802 |
|
warn "config($p) taking first occurence of '$k', probably not what you wanted!\n"; |
803 |
|
last; |
804 |
|
} |
805 |
|
|
806 |
|
if (! defined($c->{$k}) ) { |
807 |
|
$c = undef; |
808 |
|
last; |
809 |
|
} else { |
810 |
|
$c = $c->{$k}; |
811 |
|
} |
812 |
|
} |
813 |
|
$v = $c if ($c); |
814 |
|
|
815 |
|
} |
816 |
|
|
817 |
|
warn "## config( '$p' ) = ",dump( $v ),$/ if ($v && $debug); |
818 |
|
warn "config( '$p' ) is empty\n" if (! $v); |
819 |
|
|
820 |
|
return $v; |
821 |
|
} |
822 |
|
|
823 |
|
=head2 id |
824 |
|
|
825 |
|
Returns unique id of this record |
826 |
|
|
827 |
|
$id = id(); |
828 |
|
|
829 |
|
Returns C<42/2> for 2nd occurence of MFN 42. |
830 |
|
|
831 |
|
=cut |
832 |
|
|
833 |
|
sub id { |
834 |
|
my $mfn = $config->{_mfn} || die "no _mfn in config data"; |
835 |
|
return $mfn . ( WebPAC::Normalize::MARC::_created_marc_records() || '' ); |
836 |
|
} |
837 |
|
|
838 |
=head2 join_with |
=head2 join_with |
839 |
|
|
840 |
Joins walues with some delimiter |
Joins walues with some delimiter |
845 |
|
|
846 |
sub join_with { |
sub join_with { |
847 |
my $d = shift; |
my $d = shift; |
848 |
return join($d, grep { defined($_) && $_ ne '' } @_); |
warn "### join_with('$d',",dump(@_),")\n" if ($debug > 2); |
849 |
|
my $v = join($d, grep { defined($_) && $_ ne '' } @_); |
850 |
|
return '' unless defined($v); |
851 |
|
return $v; |
852 |
} |
} |
853 |
|
|
854 |
=head2 split_rec_on |
=head2 split_rec_on |
876 |
my $v = shift @r; |
my $v = shift @r; |
877 |
warn "### first rec($fld,$sf) = ",dump($v),$/ if ($debug > 2); |
warn "### first rec($fld,$sf) = ",dump($v),$/ if ($debug > 2); |
878 |
|
|
879 |
return '' if( ! defined($v) || $v =~ /^\s*$/); |
return '' if ( ! defined($v) || $v =~ /^\s*$/); |
880 |
|
|
881 |
my @s = split( $regex, $v ); |
my @s = split( $regex, $v ); |
882 |
warn "## split_rec_on($fld,$sf,$regex,$part) = ",dump(@s),$/ if ($debug > 1); |
warn "## split_rec_on($fld,$sf,$regex,$part) = ",dump(@s),$/ if ($debug > 1); |
887 |
} |
} |
888 |
} |
} |
889 |
|
|
890 |
|
my $hash; |
891 |
|
|
892 |
|
=head2 set |
893 |
|
|
894 |
|
set( key => 'value' ); |
895 |
|
|
896 |
|
=cut |
897 |
|
|
898 |
|
sub set { |
899 |
|
my ($k,$v) = @_; |
900 |
|
warn "## set ( $k => ", dump($v), " )", $/ if ( $debug ); |
901 |
|
$hash->{$k} = $v; |
902 |
|
}; |
903 |
|
|
904 |
|
=head2 get |
905 |
|
|
906 |
|
get( 'key' ); |
907 |
|
|
908 |
|
=cut |
909 |
|
|
910 |
|
sub get { |
911 |
|
my $k = shift || return; |
912 |
|
my $v = $hash->{$k}; |
913 |
|
warn "## get $k = ", dump( $v ), $/ if ( $debug ); |
914 |
|
return $v; |
915 |
|
} |
916 |
|
|
917 |
|
=head2 count |
918 |
|
|
919 |
|
if ( count( @result ) == 1 ) { |
920 |
|
# do something if only 1 result is there |
921 |
|
} |
922 |
|
|
923 |
|
=cut |
924 |
|
|
925 |
|
sub count { |
926 |
|
warn "## count ",dump(@_),$/ if ( $debug ); |
927 |
|
return @_ . ''; |
928 |
|
} |
929 |
|
|
930 |
# END |
# END |
931 |
1; |
1; |