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package WebPAC::Normalize; |
package WebPAC::Normalize; |
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use Exporter 'import'; |
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@EXPORT = qw/ |
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_set_rec _set_lookup |
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_get_ds _clean_ds |
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_debug |
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tag search display |
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marc marc_indicators marc_repeatable_subfield |
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marc_compose marc_leader |
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marc_duplicate marc_remove |
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marc_original_order |
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rec1 rec2 rec |
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regex prefix suffix surround |
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first lookup join_with |
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split_rec_on |
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/; |
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use warnings; |
use warnings; |
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use strict; |
use strict; |
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use Data::Dumper; |
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#use base qw/WebPAC::Common/; |
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use Data::Dump qw/dump/; |
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use Encode qw/from_to/; |
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use Storable qw/dclone/; |
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# debugging warn(s) |
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my $debug = 0; |
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=head1 NAME |
=head1 NAME |
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WebPAC::Normalize - data mungling for normalisation |
WebPAC::Normalize - describe normalisaton rules using sets |
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=head1 VERSION |
=head1 VERSION |
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Version 0.01 |
Version 0.15 |
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=cut |
=cut |
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our $VERSION = '0.01'; |
our $VERSION = '0.15'; |
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=head1 SYNOPSIS |
=head1 SYNOPSIS |
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This package contains code that mungle data to produce normalized format. |
This module uses C<conf/normalize/*.pl> files to perform normalisation |
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from input records using perl functions which are specialized for set |
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processing. |
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Sets are implemented as arrays, and normalisation file is valid perl, which |
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means that you check it's validity before running WebPAC using |
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C<perl -c normalize.pl>. |
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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 |
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C<marc>. |
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It contains several assumptions: |
=head1 FUNCTIONS |
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=over |
Functions which start with C<_> are private and used by WebPAC internally. |
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All other functions are available for use within normalisation rules. |
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=item * |
=head2 data_structure |
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format of fields is defined using C<v123^a> notation for repeatable fields |
Return data structure |
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or C<s123^a> for single (or first) value, where C<123> is field number and |
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C<a> is subfield. |
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=item * |
my $ds = WebPAC::Normalize::data_structure( |
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lookup => $lookup->lookup_hash, |
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row => $row, |
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rules => $normalize_pl_config, |
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marc_encoding => 'utf-8', |
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config => $config, |
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); |
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source data records (C<$rec>) have unique identifiers in field C<000> |
Options C<lookup>, C<row>, C<rules> and C<log> are mandatory while all |
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other are optional. |
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=item * |
This function will B<die> if normalizastion can't be evaled. |
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optional C<eval{length('v123^a') == 3}> tag at B<beginning of format> will be |
Since this function isn't exported you have to call it with |
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perl code that is evaluated before producing output (value of field will be |
C<WebPAC::Normalize::data_structure>. |
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interpolated before that) |
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=item * |
=cut |
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optional C<filter{filter_name}> at B<begining of format> will apply perl |
sub data_structure { |
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code defined as code ref on format after field substitution to producing |
my $arg = {@_}; |
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output |
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=item * |
die "need row argument" unless ($arg->{row}); |
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die "need normalisation argument" unless ($arg->{rules}); |
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optional C<lookup{...}> will be then performed. See C<WebPAC::Lookups>. |
no strict 'subs'; |
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_set_lookup( $arg->{lookup} ); |
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_set_rec( $arg->{row} ); |
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_set_config( $arg->{config} ); |
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_clean_ds( %{ $arg } ); |
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eval "$arg->{rules}"; |
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die "error evaling $arg->{rules}: $@\n" if ($@); |
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=item * |
return _get_ds(); |
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} |
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at end, optional C<format>s rules are resolved. Format rules are similar to |
=head2 _set_rec |
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C<sprintf> and can also contain C<lookup{...}> which is performed after |
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values are inserted in format. |
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=back |
Set current record hash |
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This also describes order in which transformations are applied (eval, |
_set_rec( $rec ); |
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filter, lookup, format) which is important to undestand when deciding how to |
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solve your data mungling and normalisation process. |
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=cut |
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my $rec; |
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sub _set_rec { |
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$rec = shift or die "no record hash"; |
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} |
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=head1 FUNCTIONS |
=head2 _set_config |
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=head2 new |
Set current config hash |
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Create new normalisation object |
_set_config( $config ); |
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my $n = new WebPAC::Normalize::Something( |
Magic keys are: |
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filter => { |
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'filter_name_1' => sub { |
=over 4 |
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# filter code |
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return length($_); |
=item _ |
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}, ... |
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}, |
Code of current database |
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db => $webpac_db_obj, |
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lookup_regex => $lookup->regex, |
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); |
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Parametar C<filter> defines user supplied snippets of perl code which can |
=item _mfn |
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be use with C<filter{...}> notation. |
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Recommended parametar C<lookup_regex> is used to enable parsing of lookups |
Current MFN |
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in structures. |
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=back |
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=cut |
=cut |
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sub new { |
my $config; |
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my $class = shift; |
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my $self = {@_}; |
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bless($self, $class); |
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$self ? return $self : return undef; |
sub _set_config { |
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$config = shift; |
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} |
} |
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=head2 _get_ds |
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=head2 data_structure |
Return hash formatted as data structure |
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Create in-memory data structure which represents normalized layout from |
my $ds = _get_ds(); |
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C<conf/normalize/*.xml>. |
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This structures are used to produce output. |
=cut |
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my ($out, $marc_record, $marc_encoding, $marc_repeatable_subfield, $marc_indicators); |
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my ($marc_record_offset, $marc_fetch_offset) = (0, 0); |
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sub _get_ds { |
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return $out; |
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} |
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my @ds = $webpac->data_structure($rec); |
=head2 _clean_ds |
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B<Note: historical oddity follows> |
Clean data structure hash for next record |
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This method will also set C<< $webpac->{'currnet_filename'} >> if there is |
_clean_ds(); |
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C<< <filename> >> tag and C<< $webpac->{'headline'} >> if there is |
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C<< <headline> >> tag. |
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=cut |
=cut |
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sub data_structure { |
sub _clean_ds { |
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my $self = shift; |
my $a = {@_}; |
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($out,$marc_record, $marc_encoding, $marc_repeatable_subfield, $marc_indicators) = (); |
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($marc_record_offset, $marc_fetch_offset) = (0,0); |
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$marc_encoding = $a->{marc_encoding}; |
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} |
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my $log = $self->_get_logger(); |
=head2 _set_lookup |
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my $rec = shift; |
Set current lookup hash |
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$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
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my $cache_file; |
_set_lookup( $lookup ); |
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if ($self->{'db'}) { |
=cut |
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my @ds = $self->{'db'}->load_ds($rec); |
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return @ds if (@ds); |
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} |
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undef $self->{'currnet_filename'}; |
my $lookup; |
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undef $self->{'headline'}; |
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my @sorted_tags; |
sub _set_lookup { |
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if ($self->{tags_by_order}) { |
$lookup = shift; |
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@sorted_tags = @{$self->{tags_by_order}}; |
} |
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} else { |
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@sorted_tags = sort { $self->_sort_by_order } keys %{$self->{'import_xml'}->{'indexer'}}; |
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$self->{tags_by_order} = \@sorted_tags; |
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} |
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my @ds; |
=head2 _get_marc_fields |
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$log->debug("tags: ",sub { join(", ",@sorted_tags) }); |
Get all fields defined by calls to C<marc> |
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foreach my $field (@sorted_tags) { |
$marc->add_fields( WebPAC::Normalize:_get_marc_fields() ); |
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my $row; |
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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#print "field $field [",$self->{'tag'},"] = ",Dumper($self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}); |
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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foreach my $tag (@{$self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}}) { |
This is sane for most cases. Something like: |
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my $format = $tag->{'value'} || $tag->{'content'}; |
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$log->debug("format: $format"); |
900a-1 900b-1 900c-1 |
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900a-2 900b-2 |
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900a-3 |
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my @v; |
will be created from any combination of: |
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if ($self->{'lookup_regex'} && $format =~ $self->{'lookup_regex'}) { |
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@v = $self->fill_in_to_arr($rec,$format); |
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} else { |
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@v = $self->parse_to_arr($rec,$format); |
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} |
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next if (! @v); |
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if ($tag->{'sort'}) { |
900a-1 900a-2 900a-3 900b-1 900b-2 900c-1 |
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@v = $self->sort_arr(@v); |
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} |
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# use format? |
and following rules: |
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if ($tag->{'format_name'}) { |
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@v = map { $self->apply_format($tag->{'format_name'},$tag->{'format_delimiter'},$_) } @v; |
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} |
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if ($field eq 'filename') { |
marc('900','a', rec('200','a') ); |
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$self->{'current_filename'} = join('',@v); |
marc('900','b', rec('200','b') ); |
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$log->debug("filename: ",$self->{'current_filename'}); |
marc('900','c', rec('200','c') ); |
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} elsif ($field eq 'headline') { |
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$self->{'headline'} .= join('',@v); |
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$log->debug("headline: ",$self->{'headline'}); |
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next; # don't return headline in data_structure! |
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} |
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# delimiter will join repeatable fields |
which might not be what you have in mind. If you need repeatable subfield, |
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if ($tag->{'delimiter'}) { |
define it using C<marc_repeatable_subfield> like this: |
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@v = ( join($tag->{'delimiter'}, @v) ); |
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} |
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# default types |
marc_repeatable_subfield('900','a'); |
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my @types = qw(display swish); |
marc('900','a', rec('200','a') ); |
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# override by type attribute |
marc('900','b', rec('200','b') ); |
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@types = ( $tag->{'type'} ) if ($tag->{'type'}); |
marc('900','c', rec('200','c') ); |
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foreach my $type (@types) { |
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# append to previous line? |
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$log->debug("type: $type ",sub { join(" ",@v) }, $row->{'append'} || 'no append'); |
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if ($tag->{'append'}) { |
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# I will delimit appended part with |
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# delimiter (or ,) |
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my $d = $tag->{'delimiter'}; |
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# default delimiter |
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$d ||= " "; |
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my $last = pop @{$row->{$type}}; |
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$d = "" if (! $last); |
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$last .= $d . join($d, @v); |
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push @{$row->{$type}}, $last; |
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} else { |
will create: |
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push @{$row->{$type}}, @v; |
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} |
900a-1 900a-2 900a-3 900b-1 900c-1 |
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} |
900b-2 |
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There is also support for returning next or specific using: |
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while (my $mf = WebPAC::Normalize:_get_marc_fields( fetch_next => 1 ) ) { |
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# do something with $mf |
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} |
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will always return fields from next MARC record or |
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my $mf = WebPAC::Normalize::_get_marc_fields( offset => 42 ); |
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will return 42th copy record (if it exists). |
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=cut |
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sub _get_marc_fields { |
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my $arg = {@_}; |
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warn "### _get_marc_fields arg: ", dump($arg), $/ if ($debug > 2); |
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my $offset = $marc_fetch_offset; |
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if ($arg->{offset}) { |
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$offset = $arg->{offset}; |
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} elsif($arg->{fetch_next}) { |
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$marc_fetch_offset++; |
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} |
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return if (! $marc_record || ref($marc_record) ne 'ARRAY'); |
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warn "### full marc_record = ", dump( @{ $marc_record }), $/ if ($debug > 2); |
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my $marc_rec = $marc_record->[ $offset ]; |
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warn "## _get_marc_fields (at offset: $offset) -- marc_record = ", dump( @$marc_rec ), $/ if ($debug > 1); |
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return if (! $marc_rec || ref($marc_rec) ne 'ARRAY' || $#{ $marc_rec } < 0); |
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# first, sort all existing fields |
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# XXX might not be needed, but modern perl might randomize elements in hash |
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my @sorted_marc_record = sort { |
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$a->[0] . ( $a->[3] || '' ) cmp $b->[0] . ( $b->[3] || '') |
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} @{ $marc_rec }; |
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@sorted_marc_record = @{ $marc_rec }; ### 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 ), $/ if ( $marc_repeatable_subfield ); |
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warn "## marc_record[$offset] = ", dump( $marc_rec ), $/; |
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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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if ($row) { |
# mark it visited |
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$row->{'tag'} = $field; |
$visited->{$i}++; |
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# TODO: name_sigular, name_plural |
my $row = dclone( $sorted_marc_record[$i] ); |
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my $name = $self->{'import_xml'}->{'indexer'}->{$field}->{'name'}; |
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$row->{'name'} = $name ? $self->_x($name) : $field; |
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# post-sort all values in field |
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if ($self->{'import_xml'}->{'indexer'}->{$field}->{'sort'}) { |
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$log->warn("sort at field tag not implemented"); |
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} |
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push @ds, $row; |
# field and subfield which is key for |
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# marc_repeatable_subfield and u |
306 |
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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)' : '', $/, |
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if ($#$field >= 0); |
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$log->debug("row $field: ",sub { Dumper($row) }); |
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} |
} |
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# if field exists |
319 |
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if ( $#$field >= 0 ) { |
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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 |
324 |
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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 ( |
330 |
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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 } |
334 |
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) |
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) { |
336 |
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push @m, $field; |
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warn "## saved/2 ", dump( $field ),$/ if ($debug); |
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$field = $row; |
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} else { |
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# append new subfields to existing field |
342 |
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push @$field, ( $row->[3], $row->[4] ); |
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} |
344 |
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} else { |
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# insert first field |
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$field = $row; |
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} |
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if (! $marc_repeatable_subfield->{ $fsf }) { |
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# make step to next subfield |
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$i = ($i + $u->{ $fsf } ) % ($len + 1); |
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|
} |
353 |
} |
} |
354 |
|
|
355 |
$self->{'db'}->save_ds( |
if ($#$field >= 0) { |
356 |
ds => \@ds, |
push @m, $field; |
357 |
current_filename => $self->{'current_filename'}, |
warn "## saved/3 ", dump( $field ),$/ if ($debug); |
358 |
headline => $self->{'headline'}, |
} |
359 |
) if ($self->{'db'}); |
|
360 |
|
return \@m; |
361 |
|
} |
362 |
|
|
363 |
return @ds; |
=head2 _debug |
364 |
|
|
365 |
|
Change level of debug warnings |
366 |
|
|
367 |
|
_debug( 2 ); |
368 |
|
|
369 |
|
=cut |
370 |
|
|
371 |
|
sub _debug { |
372 |
|
my $l = shift; |
373 |
|
return $debug unless defined($l); |
374 |
|
warn "debug level $l",$/ if ($l > 0); |
375 |
|
$debug = $l; |
376 |
} |
} |
377 |
|
|
378 |
=head2 parse |
=head1 Functions to create C<data_structure> |
379 |
|
|
380 |
|
Those functions generally have to first in your normalization file. |
381 |
|
|
382 |
|
=head2 tag |
383 |
|
|
384 |
Perform smart parsing of string, skipping delimiters for fields which aren't |
Define new tag for I<search> and I<display>. |
385 |
defined. It can also eval code in format starting with C<eval{...}> and |
|
386 |
return output or nothing depending on eval code. |
tag('Title', rec('200','a') ); |
387 |
|
|
|
my $text = $webpac->parse($rec,'eval{"v901^a" eq "Deskriptor"}descriptor: v250^a', $i); |
|
388 |
|
|
389 |
=cut |
=cut |
390 |
|
|
391 |
sub parse { |
sub tag { |
392 |
my $self = shift; |
my $name = shift or die "tag needs name as first argument"; |
393 |
|
my @o = grep { defined($_) && $_ ne '' } @_; |
394 |
|
return unless (@o); |
395 |
|
$out->{$name}->{tag} = $name; |
396 |
|
$out->{$name}->{search} = \@o; |
397 |
|
$out->{$name}->{display} = \@o; |
398 |
|
} |
399 |
|
|
400 |
my ($rec, $format_utf8, $i) = @_; |
=head2 display |
401 |
|
|
402 |
return if (! $format_utf8); |
Define tag just for I<display> |
403 |
|
|
404 |
my $log = $self->_get_logger(); |
@v = display('Title', rec('200','a') ); |
405 |
|
|
406 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
=cut |
407 |
|
|
408 |
$i = 0 if (! $i); |
sub display { |
409 |
|
my $name = shift or die "display needs name as first argument"; |
410 |
|
my @o = grep { defined($_) && $_ ne '' } @_; |
411 |
|
return unless (@o); |
412 |
|
$out->{$name}->{tag} = $name; |
413 |
|
$out->{$name}->{display} = \@o; |
414 |
|
} |
415 |
|
|
416 |
my $format = $self->_x($format_utf8) || $log->logconfess("can't convert '$format_utf8' from UTF-8 to ",$self->{'code_page'}); |
=head2 search |
417 |
|
|
418 |
my @out; |
Prepare values just for I<search> |
419 |
|
|
420 |
$log->debug("format: $format"); |
@v = search('Title', rec('200','a') ); |
421 |
|
|
422 |
my $eval_code; |
=cut |
|
# remove eval{...} from beginning |
|
|
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
|
423 |
|
|
424 |
my $filter_name; |
sub search { |
425 |
# remove filter{...} from beginning |
my $name = shift or die "search needs name as first argument"; |
426 |
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
my @o = grep { defined($_) && $_ ne '' } @_; |
427 |
|
return unless (@o); |
428 |
|
$out->{$name}->{tag} = $name; |
429 |
|
$out->{$name}->{search} = \@o; |
430 |
|
} |
431 |
|
|
432 |
my $prefix; |
=head2 marc_leader |
|
my $all_found=0; |
|
433 |
|
|
434 |
while ($format =~ s/^(.*?)(v|s)(\d+)(?:\^(\w))?//s) { |
Setup fields within MARC leader or get leader |
435 |
|
|
436 |
my $del = $1 || ''; |
marc_leader('05','c'); |
437 |
$prefix ||= $del if ($all_found == 0); |
my $leader = marc_leader(); |
438 |
|
|
439 |
# repeatable index |
=cut |
|
my $r = $i; |
|
|
$r = 0 if (lc("$2") eq 's'); |
|
440 |
|
|
441 |
my $found = 0; |
sub marc_leader { |
442 |
my $tmp = $self->get_data(\$rec,$3,$4,$r,\$found); |
my ($offset,$value) = @_; |
443 |
|
|
444 |
if ($found) { |
if ($offset) { |
445 |
push @out, $del; |
$out->{' leader'}->{ $offset } = $value; |
446 |
push @out, $tmp; |
} else { |
447 |
$all_found += $found; |
return $out->{' leader'}; |
|
} |
|
448 |
} |
} |
449 |
|
} |
450 |
|
|
451 |
return if (! $all_found); |
=head2 marc |
452 |
|
|
453 |
my $out = join('',@out); |
Save value for MARC field |
454 |
|
|
455 |
if ($out) { |
marc('900','a', rec('200','a') ); |
456 |
# add rest of format (suffix) |
marc('001', rec('000') ); |
|
$out .= $format; |
|
457 |
|
|
458 |
# add prefix if not there |
=cut |
|
$out = $prefix . $out if ($out !~ m/^\Q$prefix\E/); |
|
459 |
|
|
460 |
$log->debug("result: $out"); |
sub marc { |
461 |
} |
my $f = shift or die "marc needs field"; |
462 |
|
die "marc field must be numer" unless ($f =~ /^\d+$/); |
463 |
|
|
464 |
if ($eval_code) { |
my $sf; |
465 |
my $eval = $self->fill_in($rec,$eval_code,$i) || return; |
if ($f >= 10) { |
466 |
$log->debug("about to eval{$eval} format: $out"); |
$sf = shift or die "marc needs subfield"; |
|
return if (! $self->_eval($eval)); |
|
|
} |
|
|
|
|
|
if ($filter_name && $self->{'filter'}->{$filter_name}) { |
|
|
$log->debug("about to filter{$filter_name} format: $out"); |
|
|
$out = $self->{'filter'}->{$filter_name}->($out); |
|
|
return unless(defined($out)); |
|
|
$log->debug("filter result: $out"); |
|
467 |
} |
} |
468 |
|
|
469 |
return $out; |
foreach (@_) { |
470 |
|
my $v = $_; # make var read-write for Encode |
471 |
|
next unless (defined($v) && $v !~ /^\s*$/); |
472 |
|
from_to($v, 'iso-8859-2', $marc_encoding) if ($marc_encoding); |
473 |
|
my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
474 |
|
if (defined $sf) { |
475 |
|
push @{ $marc_record->[ $marc_record_offset ] }, [ $f, $i1, $i2, $sf => $v ]; |
476 |
|
} else { |
477 |
|
push @{ $marc_record->[ $marc_record_offset ] }, [ $f, $v ]; |
478 |
|
} |
479 |
|
} |
480 |
} |
} |
481 |
|
|
482 |
=head2 parse_to_arr |
=head2 marc_repeatable_subfield |
483 |
|
|
484 |
Similar to C<parse>, but returns array of all repeatable fields |
Save values for MARC repetable subfield |
485 |
|
|
486 |
my @arr = $webpac->parse_to_arr($rec,'v250^a'); |
marc_repeatable_subfield('910', 'z', rec('909') ); |
487 |
|
|
488 |
=cut |
=cut |
489 |
|
|
490 |
sub parse_to_arr { |
sub marc_repeatable_subfield { |
491 |
my $self = shift; |
my ($f,$sf) = @_; |
492 |
|
die "marc_repeatable_subfield need field and subfield!\n" unless ($f && $sf); |
493 |
|
$marc_repeatable_subfield->{ $f . $sf }++; |
494 |
|
marc(@_); |
495 |
|
} |
496 |
|
|
497 |
my ($rec, $format_utf8) = @_; |
=head2 marc_indicators |
498 |
|
|
499 |
my $log = $self->_get_logger(); |
Set both indicators for MARC field |
500 |
|
|
501 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
marc_indicators('900', ' ', 1); |
|
return if (! $format_utf8); |
|
502 |
|
|
503 |
my $i = 0; |
Any indicator value other than C<0-9> will be treated as undefined. |
|
my @arr; |
|
504 |
|
|
505 |
while (my $v = $self->parse($rec,$format_utf8,$i++)) { |
=cut |
|
push @arr, $v; |
|
|
} |
|
506 |
|
|
507 |
$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
sub marc_indicators { |
508 |
|
my $f = shift || die "marc_indicators need field!\n"; |
509 |
|
my ($i1,$i2) = @_; |
510 |
|
die "marc_indicators($f, ...) need i1!\n" unless(defined($i1)); |
511 |
|
die "marc_indicators($f, $i1, ...) need i2!\n" unless(defined($i2)); |
512 |
|
|
513 |
return @arr; |
$i1 = ' ' if ($i1 !~ /^\d$/); |
514 |
|
$i2 = ' ' if ($i2 !~ /^\d$/); |
515 |
|
@{ $marc_indicators->{$f} } = ($i1,$i2); |
516 |
} |
} |
517 |
|
|
518 |
|
=head2 marc_compose |
519 |
|
|
520 |
|
Save values for each MARC subfield explicitly |
521 |
|
|
522 |
=head2 fill_in |
marc_compose('900', |
523 |
|
'a', rec('200','a') |
524 |
|
'b', rec('201','a') |
525 |
|
'a', rec('200','b') |
526 |
|
'c', rec('200','c') |
527 |
|
); |
528 |
|
|
529 |
Workhourse of all: takes record from in-memory structure of database and |
If you specify C<+> for subfield, value will be appended |
530 |
strings with placeholders and returns string or array of with substituted |
to previous defined subfield. |
|
values from record. |
|
531 |
|
|
532 |
my $text = $webpac->fill_in($rec,'v250^a'); |
=cut |
533 |
|
|
534 |
Optional argument is ordinal number for repeatable fields. By default, |
sub marc_compose { |
535 |
it's assume to be first repeatable field (fields are perl array, so first |
my $f = shift or die "marc_compose needs field"; |
536 |
element is 0). |
die "marc_compose field must be numer" unless ($f =~ /^\d+$/); |
|
Following example will read second value from repeatable field. |
|
537 |
|
|
538 |
my $text = $webpac->fill_in($rec,'Title: v250^a',1); |
my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
539 |
|
my $m = [ $f, $i1, $i2 ]; |
540 |
|
|
541 |
This function B<does not> perform parsing of format to inteligenty skip |
warn "### marc_compose input subfields = ", dump(@_),$/ if ($debug > 2); |
|
delimiters before fields which aren't used. |
|
542 |
|
|
543 |
This method will automatically decode UTF-8 string to local code page |
while (@_) { |
544 |
if needed. |
my $sf = shift or die "marc_compose $f needs subfield"; |
545 |
|
my $v = shift; |
546 |
|
|
547 |
|
next unless (defined($v) && $v !~ /^\s*$/); |
548 |
|
from_to($v, 'iso-8859-2', $marc_encoding) if ($marc_encoding); |
549 |
|
warn "## ++ marc_compose($f,$sf,$v) ", dump( $m ),$/ if ($debug > 1); |
550 |
|
if ($sf ne '+') { |
551 |
|
push @$m, ( $sf, $v ); |
552 |
|
} else { |
553 |
|
$m->[ $#$m ] .= $v; |
554 |
|
} |
555 |
|
} |
556 |
|
|
557 |
|
warn "## marc_compose current marc = ", dump( $m ),$/ if ($debug > 1); |
558 |
|
|
559 |
|
push @{ $marc_record->[ $marc_record_offset ] }, $m if ($#{$m} > 2); |
560 |
|
} |
561 |
|
|
562 |
|
=head2 marc_duplicate |
563 |
|
|
564 |
|
Generate copy of current MARC record and continue working on copy |
565 |
|
|
566 |
|
marc_duplicate(); |
567 |
|
|
568 |
|
Copies can be accessed using C<< _get_marc_fields( fetch_next => 1 ) >> or |
569 |
|
C<< _get_marc_fields( offset => 42 ) >>. |
570 |
|
|
571 |
=cut |
=cut |
572 |
|
|
573 |
sub fill_in { |
sub marc_duplicate { |
574 |
my $self = shift; |
my $m = $marc_record->[ -1 ]; |
575 |
|
die "can't duplicate record which isn't defined" unless ($m); |
576 |
|
push @{ $marc_record }, dclone( $m ); |
577 |
|
warn "## marc_duplicate = ", dump(@$marc_record), $/ if ($debug > 1); |
578 |
|
$marc_record_offset = $#{ $marc_record }; |
579 |
|
warn "## marc_record_offset = $marc_record_offset", $/ if ($debug > 1); |
580 |
|
} |
581 |
|
|
582 |
my $log = $self->_get_logger(); |
=head2 marc_remove |
583 |
|
|
584 |
my $rec = shift || $log->logconfess("need data record"); |
Remove some field or subfield from MARC record. |
|
my $format = shift || $log->logconfess("need format to parse"); |
|
|
# iteration (for repeatable fields) |
|
|
my $i = shift || 0; |
|
585 |
|
|
586 |
$log->logdie("infitite loop in format $format") if ($i > ($self->{'max_mfn'} || 9999)); |
marc_remove('200'); |
587 |
|
marc_remove('200','a'); |
588 |
|
|
589 |
# FIXME remove for speedup? |
This will erase field C<200> or C<200^a> from current MARC record. |
|
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
|
590 |
|
|
591 |
if (utf8::is_utf8($format)) { |
This is useful after calling C<marc_duplicate> or on it's own (but, you |
592 |
$format = $self->_x($format); |
should probably just remove that subfield definition if you are not |
593 |
} |
using C<marc_duplicate>). |
594 |
|
|
595 |
my $found = 0; |
FIXME: support fields < 10. |
596 |
|
|
597 |
my $eval_code; |
=cut |
|
# remove eval{...} from beginning |
|
|
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
|
598 |
|
|
599 |
my $filter_name; |
sub marc_remove { |
600 |
# remove filter{...} from beginning |
my ($f, $sf) = @_; |
|
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
|
601 |
|
|
602 |
# do actual replacement of placeholders |
die "marc_remove needs record number" unless defined($f); |
|
# repeatable fields |
|
|
$format =~ s/v(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,$i,\$found)/ges; |
|
|
# non-repeatable fields |
|
|
$format =~ s/s(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,0,\$found)/ges; |
|
603 |
|
|
604 |
if ($found) { |
my $marc = $marc_record->[ $marc_record_offset ]; |
605 |
$log->debug("format: $format"); |
|
606 |
if ($eval_code) { |
warn "### marc_remove before = ", dump( $marc ), $/ if ($debug > 2); |
607 |
my $eval = $self->fill_in($rec,$eval_code,$i); |
|
608 |
return if (! $self->_eval($eval)); |
my $i = 0; |
609 |
} |
foreach ( 0 .. $#{ $marc } ) { |
610 |
if ($filter_name && $self->{'filter'}->{$filter_name}) { |
last unless (defined $marc->[$i]); |
611 |
$log->debug("filter '$filter_name' for $format"); |
warn "#### working on ",dump( @{ $marc->[$i] }), $/ if ($debug > 3); |
612 |
$format = $self->{'filter'}->{$filter_name}->($format); |
if ($marc->[$i]->[0] eq $f) { |
613 |
return unless(defined($format)); |
if (! defined $sf) { |
614 |
$log->debug("filter result: $format"); |
# remove whole field |
615 |
} |
splice @$marc, $i, 1; |
616 |
# do we have lookups? |
warn "#### slice \@\$marc, $i, 1 = ",dump( @{ $marc }), $/ if ($debug > 3); |
617 |
if ($self->{'lookup'}) { |
$i--; |
618 |
return $self->lookup($format); |
} else { |
619 |
} else { |
foreach my $j ( 0 .. (( $#{ $marc->[$i] } - 3 ) / 2) ) { |
620 |
return $format; |
my $o = ($j * 2) + 3; |
621 |
|
if ($marc->[$i]->[$o] eq $sf) { |
622 |
|
# remove subfield |
623 |
|
splice @{$marc->[$i]}, $o, 2; |
624 |
|
warn "#### slice \@{\$marc->[$i]}, $o, 2 = ", dump( @{ $marc }), $/ if ($debug > 3); |
625 |
|
# is record now empty? |
626 |
|
if ($#{ $marc->[$i] } == 2) { |
627 |
|
splice @$marc, $i, 1; |
628 |
|
warn "#### slice \@\$marc, $i, 1 = ", dump( @{ $marc }), $/ if ($debug > 3); |
629 |
|
$i--; |
630 |
|
}; |
631 |
|
} |
632 |
|
} |
633 |
|
} |
634 |
} |
} |
635 |
} else { |
$i++; |
|
return; |
|
636 |
} |
} |
637 |
|
|
638 |
|
warn "### marc_remove($f", $sf ? ",$sf" : "", ") after = ", dump( $marc ), $/ if ($debug > 2); |
639 |
|
|
640 |
|
$marc_record->[ $marc_record_offset ] = $marc; |
641 |
|
|
642 |
|
warn "## full marc_record = ", dump( @{ $marc_record }), $/ if ($debug > 1); |
643 |
} |
} |
644 |
|
|
645 |
|
=head2 marc_original_order |
646 |
|
|
647 |
=head2 fill_in_to_arr |
Copy all subfields preserving original order to marc field. |
648 |
|
|
649 |
Similar to C<fill_in>, but returns array of all repeatable fields. Usable |
marc_original_order(210, 260); |
|
for fields which have lookups, so they shouldn't be parsed but rather |
|
|
C<fill_id>ed. |
|
650 |
|
|
651 |
my @arr = $webpac->fill_in_to_arr($rec,'[v900];;[v250^a]'); |
You might want to use this command if you are just renaming subfields or |
652 |
|
using pre-processing modify_record in C<config.yml> and don't need any |
653 |
|
post-processing or want to preserve order of original subfields. |
654 |
|
|
655 |
=cut |
=cut |
656 |
|
|
657 |
sub fill_in_to_arr { |
sub marc_original_order { |
|
my $self = shift; |
|
658 |
|
|
659 |
my ($rec, $format_utf8) = @_; |
my ($from, $to) = @_; |
660 |
|
die "marc_original_order needs from and to fields\n" unless ($from && $to); |
661 |
|
|
662 |
my $log = $self->_get_logger(); |
my $r = $rec->{$from} || return; |
663 |
|
die "record field $from isn't array\n" unless (ref($r) eq 'ARRAY'); |
664 |
|
|
665 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
my ($i1,$i2) = defined($marc_indicators->{$to}) ? @{ $marc_indicators->{$to} } : (' ',' '); |
666 |
return if (! $format_utf8); |
warn "## marc_original_order($from,$to) source = ", dump( $r ),$/ if ($debug > 1); |
667 |
|
|
668 |
my $i = 0; |
foreach my $d (@$r) { |
|
my @arr; |
|
669 |
|
|
670 |
while (my @v = $self->fill_in($rec,$format_utf8,$i++)) { |
my @sfs = @{ $d->{subfields} }; |
671 |
push @arr, @v; |
|
672 |
|
die "field $from doesn't have subfields specification\n" unless(@sfs); |
673 |
|
die "field $from doesn't have even number of subfields specifications\n" unless($#sfs % 2 == 1); |
674 |
|
|
675 |
|
warn "#--> d: ",dump($d), "\n#--> sfs: ",dump(@sfs),$/; |
676 |
|
|
677 |
|
my $m = [ $to, $i1, $i2 ]; |
678 |
|
|
679 |
|
while (my $sf = shift @sfs) { |
680 |
|
warn "#--> sf: ",dump($sf), $/; |
681 |
|
my $offset = shift @sfs; |
682 |
|
die "corrupted sufields specification for field $from\n" unless defined($offset); |
683 |
|
|
684 |
|
my $v; |
685 |
|
if (ref($d->{$sf}) eq 'ARRAY') { |
686 |
|
$v = $d->{$sf}->[$offset] if (defined($d->{$sf}->[$offset])); |
687 |
|
} elsif ($offset == 0) { |
688 |
|
$v = $d->{$sf}; |
689 |
|
} else { |
690 |
|
die "field $from subfield '$sf' need occurence $offset which doesn't exist", dump($d->{$sf}); |
691 |
|
} |
692 |
|
push @$m, ( $sf, $v ) if (defined($v)); |
693 |
|
} |
694 |
|
|
695 |
|
if ($#{$m} > 2) { |
696 |
|
push @{ $marc_record->[ $marc_record_offset ] }, $m; |
697 |
|
} |
698 |
} |
} |
699 |
|
|
700 |
$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
warn "## marc_record = ", dump( $marc_record ),$/ if ($debug > 1); |
701 |
|
|
702 |
return @arr; |
warn "# marc_original_order is partly implemented"; |
703 |
} |
} |
704 |
|
|
705 |
|
|
706 |
=head2 get_data |
=head1 Functions to extract data from input |
707 |
|
|
708 |
Returns value from record. |
This function should be used inside functions to create C<data_structure> described |
709 |
|
above. |
710 |
|
|
711 |
my $text = $self->get_data(\$rec,$f,$sf,$i,\$found); |
=head2 rec1 |
712 |
|
|
713 |
Arguments are: |
Return all values in some field |
|
record reference C<$rec>, |
|
|
field C<$f>, |
|
|
optional subfiled C<$sf>, |
|
|
index for repeatable values C<$i>. |
|
714 |
|
|
715 |
Optinal variable C<$found> will be incremeted if there |
@v = rec1('200') |
|
is field. |
|
716 |
|
|
717 |
Returns value or empty string. |
TODO: order of values is probably same as in source data, need to investigate that |
718 |
|
|
719 |
=cut |
=cut |
720 |
|
|
721 |
sub get_data { |
sub rec1 { |
722 |
my $self = shift; |
my $f = shift; |
723 |
|
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
724 |
my ($rec,$f,$sf,$i,$found) = @_; |
return unless (defined($rec) && defined($rec->{$f})); |
725 |
|
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
726 |
if ($$rec->{$f}) { |
if (ref($rec->{$f}) eq 'ARRAY') { |
727 |
return '' if (! $$rec->{$f}->[$i]); |
return map { |
728 |
no strict 'refs'; |
if (ref($_) eq 'HASH') { |
729 |
if ($sf && $$rec->{$f}->[$i]->{$sf}) { |
values %{$_}; |
|
$$found++ if (defined($$found)); |
|
|
return $$rec->{$f}->[$i]->{$sf}; |
|
|
} elsif ($$rec->{$f}->[$i]) { |
|
|
$$found++ if (defined($$found)); |
|
|
# it still might have subfield, just |
|
|
# not specified, so we'll dump all |
|
|
if ($$rec->{$f}->[$i] =~ /HASH/o) { |
|
|
my $out; |
|
|
foreach my $k (keys %{$$rec->{$f}->[$i]}) { |
|
|
$out .= $$rec->{$f}->[$i]->{$k}." "; |
|
|
} |
|
|
return $out; |
|
730 |
} else { |
} else { |
731 |
return $$rec->{$f}->[$i]; |
$_; |
732 |
} |
} |
733 |
|
} @{ $rec->{$f} }; |
734 |
|
} elsif( defined($rec->{$f}) ) { |
735 |
|
return $rec->{$f}; |
736 |
|
} |
737 |
|
} |
738 |
|
|
739 |
|
=head2 rec2 |
740 |
|
|
741 |
|
Return all values in specific field and subfield |
742 |
|
|
743 |
|
@v = rec2('200','a') |
744 |
|
|
745 |
|
=cut |
746 |
|
|
747 |
|
sub rec2 { |
748 |
|
my $f = shift; |
749 |
|
return unless (defined($rec && $rec->{$f})); |
750 |
|
my $sf = shift; |
751 |
|
warn "rec2($f,$sf) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
752 |
|
return map { |
753 |
|
if (ref($_->{$sf}) eq 'ARRAY') { |
754 |
|
@{ $_->{$sf} }; |
755 |
|
} else { |
756 |
|
$_->{$sf}; |
757 |
} |
} |
758 |
|
} grep { ref($_) eq 'HASH' && $_->{$sf} } @{ $rec->{$f} }; |
759 |
|
} |
760 |
|
|
761 |
|
=head2 rec |
762 |
|
|
763 |
|
syntaxtic sugar for |
764 |
|
|
765 |
|
@v = rec('200') |
766 |
|
@v = rec('200','a') |
767 |
|
|
768 |
|
=cut |
769 |
|
|
770 |
|
sub rec { |
771 |
|
my @out; |
772 |
|
if ($#_ == 0) { |
773 |
|
@out = rec1(@_); |
774 |
|
} elsif ($#_ == 1) { |
775 |
|
@out = rec2(@_); |
776 |
|
} |
777 |
|
if (@out) { |
778 |
|
return @out; |
779 |
} else { |
} else { |
780 |
return ''; |
return ''; |
781 |
} |
} |
782 |
} |
} |
783 |
|
|
784 |
|
=head2 regex |
785 |
|
|
786 |
|
Apply regex to some or all values |
787 |
|
|
788 |
|
@v = regex( 's/foo/bar/g', @v ); |
789 |
|
|
790 |
|
=cut |
791 |
|
|
792 |
=head2 apply_format |
sub regex { |
793 |
|
my $r = shift; |
794 |
|
my @out; |
795 |
|
#warn "r: $r\n", dump(\@_); |
796 |
|
foreach my $t (@_) { |
797 |
|
next unless ($t); |
798 |
|
eval "\$t =~ $r"; |
799 |
|
push @out, $t if ($t && $t ne ''); |
800 |
|
} |
801 |
|
return @out; |
802 |
|
} |
803 |
|
|
804 |
Apply format specified in tag with C<format_name="name"> and |
=head2 prefix |
|
C<format_delimiter=";;">. |
|
805 |
|
|
806 |
my $text = $webpac->apply_format($format_name,$format_delimiter,$data); |
Prefix all values with a string |
807 |
|
|
808 |
Formats can contain C<lookup{...}> if you need them. |
@v = prefix( 'my_', @v ); |
809 |
|
|
810 |
=cut |
=cut |
811 |
|
|
812 |
sub apply_format { |
sub prefix { |
813 |
my $self = shift; |
my $p = shift or return; |
814 |
|
return map { $p . $_ } grep { defined($_) } @_; |
815 |
|
} |
816 |
|
|
817 |
my ($name,$delimiter,$data) = @_; |
=head2 suffix |
818 |
|
|
819 |
my $log = $self->_get_logger(); |
suffix all values with a string |
820 |
|
|
821 |
if (! $self->{'import_xml'}->{'format'}->{$name}) { |
@v = suffix( '_my', @v ); |
|
$log->warn("<format name=\"$name\"> is not defined in ",$self->{'import_xml_file'}); |
|
|
return $data; |
|
|
} |
|
822 |
|
|
823 |
$log->warn("no delimiter for format $name") if (! $delimiter); |
=cut |
824 |
|
|
825 |
my $format = $self->_x($self->{'import_xml'}->{'format'}->{$name}->{'content'}) || $log->logdie("can't find format '$name'"); |
sub suffix { |
826 |
|
my $s = shift or die "suffix needs string as first argument"; |
827 |
|
return map { $_ . $s } grep { defined($_) } @_; |
828 |
|
} |
829 |
|
|
830 |
my @data = split(/\Q$delimiter\E/, $data); |
=head2 surround |
831 |
|
|
832 |
my $out = sprintf($format, @data); |
surround all values with a two strings |
|
$log->debug("using format $name [$format] on $data to produce: $out"); |
|
833 |
|
|
834 |
if ($self->{'lookup_regex'} && $out =~ $self->{'lookup_regex'}) { |
@v = surround( 'prefix_', '_suffix', @v ); |
|
return $self->lookup($out); |
|
|
} else { |
|
|
return $out; |
|
|
} |
|
835 |
|
|
836 |
|
=cut |
837 |
|
|
838 |
|
sub surround { |
839 |
|
my $p = shift or die "surround need prefix as first argument"; |
840 |
|
my $s = shift or die "surround needs suffix as second argument"; |
841 |
|
return map { $p . $_ . $s } grep { defined($_) } @_; |
842 |
} |
} |
843 |
|
|
844 |
=head2 sort_arr |
=head2 first |
845 |
|
|
846 |
Sort array ignoring case and html in data |
Return first element |
847 |
|
|
848 |
my @sorted = $webpac->sort_arr(@unsorted); |
$v = first( @v ); |
849 |
|
|
850 |
=cut |
=cut |
851 |
|
|
852 |
sub sort_arr { |
sub first { |
853 |
my $self = shift; |
my $r = shift; |
854 |
|
return $r; |
855 |
|
} |
856 |
|
|
857 |
my $log = $self->_get_logger(); |
=head2 lookup |
858 |
|
|
859 |
# FIXME add Schwartzian Transformation? |
Consult lookup hashes for some value |
860 |
|
|
861 |
my @sorted = sort { |
@v = lookup( $v ); |
862 |
$a =~ s#<[^>]+/*>##; |
@v = lookup( @v ); |
|
$b =~ s#<[^>]+/*>##; |
|
|
lc($b) cmp lc($a) |
|
|
} @_; |
|
|
$log->debug("sorted values: ",sub { join(", ",@sorted) }); |
|
863 |
|
|
864 |
return @sorted; |
=cut |
865 |
|
|
866 |
|
sub lookup { |
867 |
|
my $k = shift or return; |
868 |
|
return unless (defined($lookup->{$k})); |
869 |
|
if (ref($lookup->{$k}) eq 'ARRAY') { |
870 |
|
return @{ $lookup->{$k} }; |
871 |
|
} else { |
872 |
|
return $lookup->{$k}; |
873 |
|
} |
874 |
} |
} |
875 |
|
|
876 |
|
=head2 config |
877 |
|
|
878 |
=head1 INTERNAL METHODS |
Consult config values stored in C<config.yml> |
879 |
|
|
880 |
=head2 _sort_by_order |
# return database code (key under databases in yaml) |
881 |
|
$database_code = config(); # use _ from hash |
882 |
|
$database_name = config('name'); |
883 |
|
$database_input_name = config('input name'); |
884 |
|
$tag = config('input normalize tag'); |
885 |
|
|
886 |
Sort xml tags data structure accoding to C<order=""> attribute. |
Up to three levels are supported. |
887 |
|
|
888 |
=cut |
=cut |
889 |
|
|
890 |
sub _sort_by_order { |
sub config { |
891 |
my $self = shift; |
return unless ($config); |
892 |
|
|
893 |
|
my $p = shift; |
894 |
|
|
895 |
|
$p ||= ''; |
896 |
|
|
897 |
|
my $v; |
898 |
|
|
899 |
my $va = $self->{'import_xml'}->{'indexer'}->{$a}->{'order'} || |
warn "### getting config($p)\n" if ($debug > 1); |
|
$self->{'import_xml'}->{'indexer'}->{$a}; |
|
|
my $vb = $self->{'import_xml'}->{'indexer'}->{$b}->{'order'} || |
|
|
$self->{'import_xml'}->{'indexer'}->{$b}; |
|
900 |
|
|
901 |
return $va <=> $vb; |
my @p = split(/\s+/,$p); |
902 |
|
if ($#p < 0) { |
903 |
|
$v = $config->{ '_' }; # special, database code |
904 |
|
} else { |
905 |
|
|
906 |
|
my $c = dclone( $config ); |
907 |
|
|
908 |
|
foreach my $k (@p) { |
909 |
|
warn "### k: $k c = ",dump($c),$/ if ($debug > 1); |
910 |
|
if (ref($c) eq 'ARRAY') { |
911 |
|
$c = shift @$c; |
912 |
|
warn "config($p) taking first occurence of '$k', probably not what you wanted!\n"; |
913 |
|
last; |
914 |
|
} |
915 |
|
|
916 |
|
if (! defined($c->{$k}) ) { |
917 |
|
$c = undef; |
918 |
|
last; |
919 |
|
} else { |
920 |
|
$c = $c->{$k}; |
921 |
|
} |
922 |
|
} |
923 |
|
$v = $c if ($c); |
924 |
|
|
925 |
|
} |
926 |
|
|
927 |
|
warn "## config( '$p' ) = ",dump( $v ),$/ if ($v && $debug); |
928 |
|
warn "config( '$p' ) is empty\n" if (! $v); |
929 |
|
|
930 |
|
return $v; |
931 |
} |
} |
932 |
|
|
933 |
=head2 _x |
=head2 id |
934 |
|
|
935 |
Convert strings from C<conf/normalize/*.xml> encoding into application |
Returns unique id of this record |
|
specific encoding (optinally specified using C<code_page> to C<new> |
|
|
constructor). |
|
936 |
|
|
937 |
my $text = $n->_x('normalize text string'); |
$id = id(); |
938 |
|
|
939 |
This is a stub so that other modules doesn't have to implement it. |
Returns C<42/2> for 2nd occurence of MFN 42. |
940 |
|
|
941 |
=cut |
=cut |
942 |
|
|
943 |
sub _x { |
sub id { |
944 |
my $self = shift; |
my $mfn = $config->{_mfn} || die "no _mfn in config data"; |
945 |
return shift; |
return $mfn . $#{$marc_record} ? $#{$marc_record} + 1 : ''; |
946 |
} |
} |
947 |
|
|
948 |
|
=head2 join_with |
949 |
|
|
950 |
|
Joins walues with some delimiter |
951 |
|
|
952 |
=head1 AUTHOR |
$v = join_with(", ", @v); |
953 |
|
|
954 |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
=cut |
955 |
|
|
956 |
|
sub join_with { |
957 |
|
my $d = shift; |
958 |
|
warn "### join_with('$d',",dump(@_),")\n" if ($debug > 2); |
959 |
|
my $v = join($d, grep { defined($_) && $_ ne '' } @_); |
960 |
|
return '' unless defined($v); |
961 |
|
return $v; |
962 |
|
} |
963 |
|
|
964 |
|
=head2 split_rec_on |
965 |
|
|
966 |
=head1 COPYRIGHT & LICENSE |
Split record subfield on some regex and take one of parts out |
967 |
|
|
968 |
Copyright 2005 Dobrica Pavlinusic, All Rights Reserved. |
$a_before_semi_column = |
969 |
|
split_rec_on('200','a', /\s*;\s*/, $part); |
970 |
|
|
971 |
This program is free software; you can redistribute it and/or modify it |
C<$part> is optional number of element. First element is |
972 |
under the same terms as Perl itself. |
B<1>, not 0! |
973 |
|
|
974 |
|
If there is no C<$part> parameter or C<$part> is 0, this function will |
975 |
|
return all values produced by splitting. |
976 |
|
|
977 |
=cut |
=cut |
978 |
|
|
979 |
1; # End of WebPAC::DB |
sub split_rec_on { |
980 |
|
die "split_rec_on need (fld,sf,regex[,part]" if ($#_ < 2); |
981 |
|
|
982 |
|
my ($fld, $sf, $regex, $part) = @_; |
983 |
|
warn "### regex ", ref($regex), $regex, $/ if ($debug > 2); |
984 |
|
|
985 |
|
my @r = rec( $fld, $sf ); |
986 |
|
my $v = shift @r; |
987 |
|
warn "### first rec($fld,$sf) = ",dump($v),$/ if ($debug > 2); |
988 |
|
|
989 |
|
return '' if ( ! defined($v) || $v =~ /^\s*$/); |
990 |
|
|
991 |
|
my @s = split( $regex, $v ); |
992 |
|
warn "## split_rec_on($fld,$sf,$regex,$part) = ",dump(@s),$/ if ($debug > 1); |
993 |
|
if ($part && $part > 0) { |
994 |
|
return $s[ $part - 1 ]; |
995 |
|
} else { |
996 |
|
return @s; |
997 |
|
} |
998 |
|
} |
999 |
|
|
1000 |
|
# END |
1001 |
|
1; |