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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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_set_load_row |
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_get_ds _clean_ds |
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_debug |
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_pack_subfields_hash |
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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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save_into_lookup |
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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 base qw/WebPAC::Common/; |
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use Data::Dump qw/dump/; |
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use Storable qw/dclone/; |
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use Carp qw/confess/; |
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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 - normalisation of source file |
WebPAC::Normalize - describe normalisaton rules using sets |
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=head1 VERSION |
=head1 VERSION |
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Version 0.01 |
Version 0.22 |
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=cut |
=cut |
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our $VERSION = '0.01'; |
our $VERSION = '0.22'; |
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=head1 SYNOPSIS |
=head1 SYNOPSIS |
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This package contains code that could be helpful in implementing different |
This module uses C<conf/normalize/*.pl> files to perform normalisation |
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normalisation front-ends. |
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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=head1 FUNCTIONS |
=head1 FUNCTIONS |
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=head2 none_yet |
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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=head2 data_structure |
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Return data structure |
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my $ds = WebPAC::Normalize::data_structure( |
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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 => $config, |
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load_row_coderef => sub { |
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my ($database,$input,$mfn) = shift; |
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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<row>, C<rules> and C<log> are mandatory while all |
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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. |
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Since this function isn't exported you have to call it with |
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C<WebPAC::Normalize::data_structure>. |
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=cut |
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my $load_row_coderef; |
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sub data_structure { |
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my $arg = {@_}; |
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die "need row argument" unless ($arg->{row}); |
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die "need normalisation argument" unless ($arg->{rules}); |
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no strict 'subs'; |
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_set_lookup( $arg->{lookup} ) if defined($arg->{lookup}); |
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_set_rec( $arg->{row} ); |
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_set_config( $arg->{config} ) if defined($arg->{config}); |
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_clean_ds( %{ $arg } ); |
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$load_row_coderef = $arg->{load_row_coderef}; |
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eval "$arg->{rules}"; |
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die "error evaling $arg->{rules}: $@\n" if ($@); |
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return _get_ds(); |
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} |
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=head2 _set_rec |
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Set current record hash |
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_set_rec( $rec ); |
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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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=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 |
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Return hash formatted as data structure |
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my $ds = _get_ds(); |
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=cut |
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my ($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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=head2 _clean_ds |
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Clean data structure hash for next record |
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_clean_ds(); |
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=cut |
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sub _clean_ds { |
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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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=head2 _set_lookup |
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Set current lookup hash |
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_set_lookup( $lookup ); |
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=cut |
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my $lookup; |
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sub _set_lookup { |
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$lookup = shift; |
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} |
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=head2 _get_lookup |
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Get current lookup hash |
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my $lookup = _get_lookup(); |
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=cut |
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sub _get_lookup { |
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return $lookup; |
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} |
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=head2 _set_load_row |
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Setup code reference which will return L<data_structure> from |
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L<WebPAC::Store> |
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_set_load_row(sub { |
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my ($database,$input,$mfn) = @_; |
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$store->load_row( database => $database, input => $input, id => $mfn ); |
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}); |
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=cut |
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sub _set_load_row { |
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my $coderef = shift; |
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confess "argument isn't CODE" unless ref($coderef) eq 'CODE'; |
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$load_row_coderef = $coderef; |
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} |
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=head2 _get_marc_fields |
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Get all fields defined by calls to C<marc> |
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$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 |
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and following rules: |
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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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marc_repeatable_subfield('900','a'); |
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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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will create: |
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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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# mark it visited |
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$visited->{$i}++; |
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my $row = dclone( $sorted_marc_record[$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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} |
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# if field exists |
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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 |
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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 = $row; |
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} else { |
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# append new subfields to existing field |
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push @$field, ( $row->[3], $row->[4] ); |
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} |
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} else { |
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# insert first field |
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$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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} |
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} |
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if ($#$field >= 0) { |
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push @m, $field; |
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warn "## saved/3 ", dump( $field ),$/ if ($debug); |
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} |
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return \@m; |
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} |
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=head2 _debug |
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Change level of debug warnings |
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_debug( 2 ); |
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=cut |
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sub _debug { |
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my $l = shift; |
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return $debug unless defined($l); |
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warn "debug level $l",$/ if ($l > 0); |
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$debug = $l; |
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} |
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=head1 Functions to create C<data_structure> |
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Those functions generally have to first in your normalization file. |
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=head2 tag |
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Define new tag for I<search> and I<display>. |
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tag('Title', rec('200','a') ); |
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=cut |
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sub tag { |
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my $name = shift or die "tag needs name as first argument"; |
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my @o = grep { defined($_) && $_ ne '' } @_; |
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return unless (@o); |
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$out->{$name}->{tag} = $name; |
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$out->{$name}->{search} = \@o; |
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$out->{$name}->{display} = \@o; |
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} |
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=head2 display |
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Define tag just for I<display> |
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@v = display('Title', rec('200','a') ); |
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=cut |
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sub display { |
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my $name = shift or die "display needs name as first argument"; |
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my @o = grep { defined($_) && $_ ne '' } @_; |
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return unless (@o); |
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$out->{$name}->{tag} = $name; |
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$out->{$name}->{display} = \@o; |
| 459 |
|
} |
| 460 |
|
|
| 461 |
|
=head2 search |
| 462 |
|
|
| 463 |
|
Prepare values just for I<search> |
| 464 |
|
|
| 465 |
|
@v = search('Title', rec('200','a') ); |
| 466 |
|
|
| 467 |
|
=cut |
| 468 |
|
|
| 469 |
|
sub search { |
| 470 |
|
my $name = shift or die "search needs name as first argument"; |
| 471 |
|
my @o = grep { defined($_) && $_ ne '' } @_; |
| 472 |
|
return unless (@o); |
| 473 |
|
$out->{$name}->{tag} = $name; |
| 474 |
|
$out->{$name}->{search} = \@o; |
| 475 |
|
} |
| 476 |
|
|
| 477 |
|
=head2 marc_leader |
| 478 |
|
|
| 479 |
|
Setup fields within MARC leader or get leader |
| 480 |
|
|
| 481 |
|
marc_leader('05','c'); |
| 482 |
|
my $leader = marc_leader(); |
| 483 |
|
|
| 484 |
|
=cut |
| 485 |
|
|
| 486 |
|
sub marc_leader { |
| 487 |
|
my ($offset,$value) = @_; |
| 488 |
|
|
| 489 |
|
if ($offset) { |
| 490 |
|
$out->{' leader'}->{ $offset } = $value; |
| 491 |
|
} else { |
| 492 |
|
return $out->{' leader'}; |
| 493 |
|
} |
| 494 |
|
} |
| 495 |
|
|
| 496 |
|
=head2 marc |
| 497 |
|
|
| 498 |
|
Save value for MARC field |
| 499 |
|
|
| 500 |
|
marc('900','a', rec('200','a') ); |
| 501 |
|
marc('001', rec('000') ); |
| 502 |
|
|
| 503 |
|
=cut |
| 504 |
|
|
| 505 |
|
sub marc { |
| 506 |
|
my $f = shift or die "marc needs field"; |
| 507 |
|
die "marc field must be numer" unless ($f =~ /^\d+$/); |
| 508 |
|
|
| 509 |
|
my $sf; |
| 510 |
|
if ($f >= 10) { |
| 511 |
|
$sf = shift or die "marc needs subfield"; |
| 512 |
|
} |
| 513 |
|
|
| 514 |
|
foreach (@_) { |
| 515 |
|
my $v = $_; # make var read-write for Encode |
| 516 |
|
next unless (defined($v) && $v !~ /^\s*$/); |
| 517 |
|
my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
| 518 |
|
if (defined $sf) { |
| 519 |
|
push @{ $marc_record->[ $marc_record_offset ] }, [ $f, $i1, $i2, $sf => $v ]; |
| 520 |
|
} else { |
| 521 |
|
push @{ $marc_record->[ $marc_record_offset ] }, [ $f, $v ]; |
| 522 |
|
} |
| 523 |
|
} |
| 524 |
|
} |
| 525 |
|
|
| 526 |
|
=head2 marc_repeatable_subfield |
| 527 |
|
|
| 528 |
|
Save values for MARC repetable subfield |
| 529 |
|
|
| 530 |
|
marc_repeatable_subfield('910', 'z', rec('909') ); |
| 531 |
|
|
| 532 |
=cut |
=cut |
| 533 |
|
|
| 534 |
sub none_yet { |
sub marc_repeatable_subfield { |
| 535 |
|
my ($f,$sf) = @_; |
| 536 |
|
die "marc_repeatable_subfield need field and subfield!\n" unless ($f && $sf); |
| 537 |
|
$marc_repeatable_subfield->{ $f . $sf }++; |
| 538 |
|
marc(@_); |
| 539 |
} |
} |
| 540 |
|
|
| 541 |
=head1 AUTHOR |
=head2 marc_indicators |
| 542 |
|
|
| 543 |
|
Set both indicators for MARC field |
| 544 |
|
|
| 545 |
|
marc_indicators('900', ' ', 1); |
| 546 |
|
|
| 547 |
|
Any indicator value other than C<0-9> will be treated as undefined. |
| 548 |
|
|
| 549 |
|
=cut |
| 550 |
|
|
| 551 |
|
sub marc_indicators { |
| 552 |
|
my $f = shift || die "marc_indicators need field!\n"; |
| 553 |
|
my ($i1,$i2) = @_; |
| 554 |
|
die "marc_indicators($f, ...) need i1!\n" unless(defined($i1)); |
| 555 |
|
die "marc_indicators($f, $i1, ...) need i2!\n" unless(defined($i2)); |
| 556 |
|
|
| 557 |
|
$i1 = ' ' if ($i1 !~ /^\d$/); |
| 558 |
|
$i2 = ' ' if ($i2 !~ /^\d$/); |
| 559 |
|
@{ $marc_indicators->{$f} } = ($i1,$i2); |
| 560 |
|
} |
| 561 |
|
|
| 562 |
|
=head2 marc_compose |
| 563 |
|
|
| 564 |
|
Save values for each MARC subfield explicitly |
| 565 |
|
|
| 566 |
|
marc_compose('900', |
| 567 |
|
'a', rec('200','a') |
| 568 |
|
'b', rec('201','a') |
| 569 |
|
'a', rec('200','b') |
| 570 |
|
'c', rec('200','c') |
| 571 |
|
); |
| 572 |
|
|
| 573 |
|
If you specify C<+> for subfield, value will be appended |
| 574 |
|
to previous defined subfield. |
| 575 |
|
|
| 576 |
|
=cut |
| 577 |
|
|
| 578 |
|
sub marc_compose { |
| 579 |
|
my $f = shift or die "marc_compose needs field"; |
| 580 |
|
die "marc_compose field must be numer" unless ($f =~ /^\d+$/); |
| 581 |
|
|
| 582 |
|
my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
| 583 |
|
my $m = [ $f, $i1, $i2 ]; |
| 584 |
|
|
| 585 |
|
warn "### marc_compose input subfields = ", dump(@_),$/ if ($debug > 2); |
| 586 |
|
|
| 587 |
|
if ($#_ % 2 != 1) { |
| 588 |
|
die "ERROR: marc_compose",dump($f,@_)," not valid (must be even).\nDo you need to add first() or join() around some argument?\n"; |
| 589 |
|
} |
| 590 |
|
|
| 591 |
|
while (@_) { |
| 592 |
|
my $sf = shift; |
| 593 |
|
my $v = shift; |
| 594 |
|
|
| 595 |
|
next unless (defined($v) && $v !~ /^\s*$/); |
| 596 |
|
warn "## ++ marc_compose($f,$sf,$v) ", dump( $m ),$/ if ($debug > 1); |
| 597 |
|
if ($sf ne '+') { |
| 598 |
|
push @$m, ( $sf, $v ); |
| 599 |
|
} else { |
| 600 |
|
$m->[ $#$m ] .= $v; |
| 601 |
|
} |
| 602 |
|
} |
| 603 |
|
|
| 604 |
|
warn "## marc_compose current marc = ", dump( $m ),$/ if ($debug > 1); |
| 605 |
|
|
| 606 |
|
push @{ $marc_record->[ $marc_record_offset ] }, $m if ($#{$m} > 2); |
| 607 |
|
} |
| 608 |
|
|
| 609 |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
=head2 marc_duplicate |
| 610 |
|
|
| 611 |
=head1 COPYRIGHT & LICENSE |
Generate copy of current MARC record and continue working on copy |
| 612 |
|
|
| 613 |
Copyright 2005 Dobrica Pavlinusic, All Rights Reserved. |
marc_duplicate(); |
| 614 |
|
|
| 615 |
This program is free software; you can redistribute it and/or modify it |
Copies can be accessed using C<< _get_marc_fields( fetch_next => 1 ) >> or |
| 616 |
under the same terms as Perl itself. |
C<< _get_marc_fields( offset => 42 ) >>. |
| 617 |
|
|
| 618 |
=cut |
=cut |
| 619 |
|
|
| 620 |
1; # End of WebPAC::DB |
sub marc_duplicate { |
| 621 |
|
my $m = $marc_record->[ -1 ]; |
| 622 |
|
die "can't duplicate record which isn't defined" unless ($m); |
| 623 |
|
push @{ $marc_record }, dclone( $m ); |
| 624 |
|
warn "## marc_duplicate = ", dump(@$marc_record), $/ if ($debug > 1); |
| 625 |
|
$marc_record_offset = $#{ $marc_record }; |
| 626 |
|
warn "## marc_record_offset = $marc_record_offset", $/ if ($debug > 1); |
| 627 |
|
} |
| 628 |
|
|
| 629 |
|
=head2 marc_remove |
| 630 |
|
|
| 631 |
|
Remove some field or subfield from MARC record. |
| 632 |
|
|
| 633 |
|
marc_remove('200'); |
| 634 |
|
marc_remove('200','a'); |
| 635 |
|
|
| 636 |
|
This will erase field C<200> or C<200^a> from current MARC record. |
| 637 |
|
|
| 638 |
|
This is useful after calling C<marc_duplicate> or on it's own (but, you |
| 639 |
|
should probably just remove that subfield definition if you are not |
| 640 |
|
using C<marc_duplicate>). |
| 641 |
|
|
| 642 |
|
FIXME: support fields < 10. |
| 643 |
|
|
| 644 |
|
=cut |
| 645 |
|
|
| 646 |
|
sub marc_remove { |
| 647 |
|
my ($f, $sf) = @_; |
| 648 |
|
|
| 649 |
|
die "marc_remove needs record number" unless defined($f); |
| 650 |
|
|
| 651 |
|
my $marc = $marc_record->[ $marc_record_offset ]; |
| 652 |
|
|
| 653 |
|
warn "### marc_remove before = ", dump( $marc ), $/ if ($debug > 2); |
| 654 |
|
|
| 655 |
|
my $i = 0; |
| 656 |
|
foreach ( 0 .. $#{ $marc } ) { |
| 657 |
|
last unless (defined $marc->[$i]); |
| 658 |
|
warn "#### working on ",dump( @{ $marc->[$i] }), $/ if ($debug > 3); |
| 659 |
|
if ($marc->[$i]->[0] eq $f) { |
| 660 |
|
if (! defined $sf) { |
| 661 |
|
# remove whole field |
| 662 |
|
splice @$marc, $i, 1; |
| 663 |
|
warn "#### slice \@\$marc, $i, 1 = ",dump( @{ $marc }), $/ if ($debug > 3); |
| 664 |
|
$i--; |
| 665 |
|
} else { |
| 666 |
|
foreach my $j ( 0 .. (( $#{ $marc->[$i] } - 3 ) / 2) ) { |
| 667 |
|
my $o = ($j * 2) + 3; |
| 668 |
|
if ($marc->[$i]->[$o] eq $sf) { |
| 669 |
|
# remove subfield |
| 670 |
|
splice @{$marc->[$i]}, $o, 2; |
| 671 |
|
warn "#### slice \@{\$marc->[$i]}, $o, 2 = ", dump( @{ $marc }), $/ if ($debug > 3); |
| 672 |
|
# is record now empty? |
| 673 |
|
if ($#{ $marc->[$i] } == 2) { |
| 674 |
|
splice @$marc, $i, 1; |
| 675 |
|
warn "#### slice \@\$marc, $i, 1 = ", dump( @{ $marc }), $/ if ($debug > 3); |
| 676 |
|
$i--; |
| 677 |
|
}; |
| 678 |
|
} |
| 679 |
|
} |
| 680 |
|
} |
| 681 |
|
} |
| 682 |
|
$i++; |
| 683 |
|
} |
| 684 |
|
|
| 685 |
|
warn "### marc_remove($f", $sf ? ",$sf" : "", ") after = ", dump( $marc ), $/ if ($debug > 2); |
| 686 |
|
|
| 687 |
|
$marc_record->[ $marc_record_offset ] = $marc; |
| 688 |
|
|
| 689 |
|
warn "## full marc_record = ", dump( @{ $marc_record }), $/ if ($debug > 1); |
| 690 |
|
} |
| 691 |
|
|
| 692 |
|
=head2 marc_original_order |
| 693 |
|
|
| 694 |
|
Copy all subfields preserving original order to marc field. |
| 695 |
|
|
| 696 |
|
marc_original_order( marc_field_number, original_input_field_number ); |
| 697 |
|
|
| 698 |
|
Please note that field numbers are consistent with other commands (marc |
| 699 |
|
field number first), but somewhat counter-intuitive (destination and then |
| 700 |
|
source). |
| 701 |
|
|
| 702 |
|
You might want to use this command if you are just renaming subfields or |
| 703 |
|
using pre-processing modify_record in C<config.yml> and don't need any |
| 704 |
|
post-processing or want to preserve order of original subfields. |
| 705 |
|
|
| 706 |
|
|
| 707 |
|
=cut |
| 708 |
|
|
| 709 |
|
sub marc_original_order { |
| 710 |
|
|
| 711 |
|
my ($to, $from) = @_; |
| 712 |
|
die "marc_original_order needs from and to fields\n" unless ($from && $to); |
| 713 |
|
|
| 714 |
|
return unless defined($rec->{$from}); |
| 715 |
|
|
| 716 |
|
my $r = $rec->{$from}; |
| 717 |
|
die "record field $from isn't array\n" unless (ref($r) eq 'ARRAY'); |
| 718 |
|
|
| 719 |
|
my ($i1,$i2) = defined($marc_indicators->{$to}) ? @{ $marc_indicators->{$to} } : (' ',' '); |
| 720 |
|
warn "## marc_original_order($to,$from) source = ", dump( $r ),$/ if ($debug > 1); |
| 721 |
|
|
| 722 |
|
foreach my $d (@$r) { |
| 723 |
|
|
| 724 |
|
if (! defined($d->{subfields}) && ref($d->{subfields}) ne 'ARRAY') { |
| 725 |
|
warn "# marc_original_order($to,$from): field $from doesn't have subfields specification\n"; |
| 726 |
|
next; |
| 727 |
|
} |
| 728 |
|
|
| 729 |
|
my @sfs = @{ $d->{subfields} }; |
| 730 |
|
|
| 731 |
|
die "field $from doesn't have even number of subfields specifications\n" unless($#sfs % 2 == 1); |
| 732 |
|
|
| 733 |
|
warn "#--> d: ",dump($d), "\n#--> sfs: ",dump(@sfs),$/ if ($debug > 2); |
| 734 |
|
|
| 735 |
|
my $m = [ $to, $i1, $i2 ]; |
| 736 |
|
|
| 737 |
|
while (my $sf = shift @sfs) { |
| 738 |
|
|
| 739 |
|
warn "#--> sf: ",dump($sf), $/ if ($debug > 2); |
| 740 |
|
my $offset = shift @sfs; |
| 741 |
|
die "corrupted sufields specification for field $from\n" unless defined($offset); |
| 742 |
|
|
| 743 |
|
my $v; |
| 744 |
|
if (ref($d->{$sf}) eq 'ARRAY') { |
| 745 |
|
$v = $d->{$sf}->[$offset] if (defined($d->{$sf}->[$offset])); |
| 746 |
|
} elsif ($offset == 0) { |
| 747 |
|
$v = $d->{$sf}; |
| 748 |
|
} else { |
| 749 |
|
die "field $from subfield '$sf' need occurence $offset which doesn't exist", dump($d->{$sf}); |
| 750 |
|
} |
| 751 |
|
push @$m, ( $sf, $v ) if (defined($v)); |
| 752 |
|
} |
| 753 |
|
|
| 754 |
|
if ($#{$m} > 2) { |
| 755 |
|
push @{ $marc_record->[ $marc_record_offset ] }, $m; |
| 756 |
|
} |
| 757 |
|
} |
| 758 |
|
|
| 759 |
|
warn "## marc_record = ", dump( $marc_record ),$/ if ($debug > 1); |
| 760 |
|
} |
| 761 |
|
|
| 762 |
|
|
| 763 |
|
=head1 Functions to extract data from input |
| 764 |
|
|
| 765 |
|
This function should be used inside functions to create C<data_structure> described |
| 766 |
|
above. |
| 767 |
|
|
| 768 |
|
=head2 _pack_subfields_hash |
| 769 |
|
|
| 770 |
|
@subfields = _pack_subfields_hash( $h ); |
| 771 |
|
$subfields = _pack_subfields_hash( $h, 1 ); |
| 772 |
|
|
| 773 |
|
Return each subfield value in array or pack them all together and return scalar |
| 774 |
|
with subfields (denoted by C<^>) and values. |
| 775 |
|
|
| 776 |
|
=cut |
| 777 |
|
|
| 778 |
|
sub _pack_subfields_hash { |
| 779 |
|
|
| 780 |
|
warn "## _pack_subfields_hash( ",dump(@_), " )\n" if ($debug > 1); |
| 781 |
|
|
| 782 |
|
my ($h,$include_subfields) = @_; |
| 783 |
|
|
| 784 |
|
if ( defined($h->{subfields}) ) { |
| 785 |
|
my $sfs = delete $h->{subfields} || die "no subfields?"; |
| 786 |
|
my @out; |
| 787 |
|
while (@$sfs) { |
| 788 |
|
my $sf = shift @$sfs; |
| 789 |
|
push @out, '^' . $sf if ($include_subfields); |
| 790 |
|
my $o = shift @$sfs; |
| 791 |
|
if ($o == 0 && ref( $h->{$sf} ) ne 'ARRAY' ) { |
| 792 |
|
# single element subfields are not arrays |
| 793 |
|
#warn "====> $sf $o / $#$sfs ", dump( $sfs, $h->{$sf} ), "\n"; |
| 794 |
|
|
| 795 |
|
push @out, $h->{$sf}; |
| 796 |
|
} else { |
| 797 |
|
#warn "====> $sf $o / $#$sfs ", dump( $sfs, $h->{$sf} ), "\n"; |
| 798 |
|
push @out, $h->{$sf}->[$o]; |
| 799 |
|
} |
| 800 |
|
} |
| 801 |
|
if ($include_subfields) { |
| 802 |
|
return join('', @out); |
| 803 |
|
} else { |
| 804 |
|
return @out; |
| 805 |
|
} |
| 806 |
|
} else { |
| 807 |
|
if ($include_subfields) { |
| 808 |
|
my $out = ''; |
| 809 |
|
foreach my $sf (sort keys %$h) { |
| 810 |
|
if (ref($h->{$sf}) eq 'ARRAY') { |
| 811 |
|
$out .= '^' . $sf . join('^' . $sf, @{ $h->{$sf} }); |
| 812 |
|
} else { |
| 813 |
|
$out .= '^' . $sf . $h->{$sf}; |
| 814 |
|
} |
| 815 |
|
} |
| 816 |
|
return $out; |
| 817 |
|
} else { |
| 818 |
|
# FIXME this should probably be in alphabetical order instead of hash order |
| 819 |
|
values %{$h}; |
| 820 |
|
} |
| 821 |
|
} |
| 822 |
|
} |
| 823 |
|
|
| 824 |
|
=head2 rec1 |
| 825 |
|
|
| 826 |
|
Return all values in some field |
| 827 |
|
|
| 828 |
|
@v = rec1('200') |
| 829 |
|
|
| 830 |
|
TODO: order of values is probably same as in source data, need to investigate that |
| 831 |
|
|
| 832 |
|
=cut |
| 833 |
|
|
| 834 |
|
sub rec1 { |
| 835 |
|
my $f = shift; |
| 836 |
|
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
| 837 |
|
return unless (defined($rec) && defined($rec->{$f})); |
| 838 |
|
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
| 839 |
|
if (ref($rec->{$f}) eq 'ARRAY') { |
| 840 |
|
my @out; |
| 841 |
|
foreach my $h ( @{ $rec->{$f} } ) { |
| 842 |
|
if (ref($h) eq 'HASH') { |
| 843 |
|
push @out, ( _pack_subfields_hash( $h ) ); |
| 844 |
|
} else { |
| 845 |
|
push @out, $h; |
| 846 |
|
} |
| 847 |
|
} |
| 848 |
|
return @out; |
| 849 |
|
} elsif( defined($rec->{$f}) ) { |
| 850 |
|
return $rec->{$f}; |
| 851 |
|
} |
| 852 |
|
} |
| 853 |
|
|
| 854 |
|
=head2 rec2 |
| 855 |
|
|
| 856 |
|
Return all values in specific field and subfield |
| 857 |
|
|
| 858 |
|
@v = rec2('200','a') |
| 859 |
|
|
| 860 |
|
=cut |
| 861 |
|
|
| 862 |
|
sub rec2 { |
| 863 |
|
my $f = shift; |
| 864 |
|
return unless (defined($rec && $rec->{$f})); |
| 865 |
|
my $sf = shift; |
| 866 |
|
warn "rec2($f,$sf) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
| 867 |
|
return map { |
| 868 |
|
if (ref($_->{$sf}) eq 'ARRAY') { |
| 869 |
|
@{ $_->{$sf} }; |
| 870 |
|
} else { |
| 871 |
|
$_->{$sf}; |
| 872 |
|
} |
| 873 |
|
} grep { ref($_) eq 'HASH' && $_->{$sf} } @{ $rec->{$f} }; |
| 874 |
|
} |
| 875 |
|
|
| 876 |
|
=head2 rec |
| 877 |
|
|
| 878 |
|
syntaxtic sugar for |
| 879 |
|
|
| 880 |
|
@v = rec('200') |
| 881 |
|
@v = rec('200','a') |
| 882 |
|
|
| 883 |
|
=cut |
| 884 |
|
|
| 885 |
|
sub rec { |
| 886 |
|
my @out; |
| 887 |
|
if ($#_ == 0) { |
| 888 |
|
@out = rec1(@_); |
| 889 |
|
} elsif ($#_ == 1) { |
| 890 |
|
@out = rec2(@_); |
| 891 |
|
} |
| 892 |
|
if (@out) { |
| 893 |
|
return @out; |
| 894 |
|
} else { |
| 895 |
|
return ''; |
| 896 |
|
} |
| 897 |
|
} |
| 898 |
|
|
| 899 |
|
=head2 regex |
| 900 |
|
|
| 901 |
|
Apply regex to some or all values |
| 902 |
|
|
| 903 |
|
@v = regex( 's/foo/bar/g', @v ); |
| 904 |
|
|
| 905 |
|
=cut |
| 906 |
|
|
| 907 |
|
sub regex { |
| 908 |
|
my $r = shift; |
| 909 |
|
my @out; |
| 910 |
|
#warn "r: $r\n", dump(\@_); |
| 911 |
|
foreach my $t (@_) { |
| 912 |
|
next unless ($t); |
| 913 |
|
eval "\$t =~ $r"; |
| 914 |
|
push @out, $t if ($t && $t ne ''); |
| 915 |
|
} |
| 916 |
|
return @out; |
| 917 |
|
} |
| 918 |
|
|
| 919 |
|
=head2 prefix |
| 920 |
|
|
| 921 |
|
Prefix all values with a string |
| 922 |
|
|
| 923 |
|
@v = prefix( 'my_', @v ); |
| 924 |
|
|
| 925 |
|
=cut |
| 926 |
|
|
| 927 |
|
sub prefix { |
| 928 |
|
my $p = shift or return; |
| 929 |
|
return map { $p . $_ } grep { defined($_) } @_; |
| 930 |
|
} |
| 931 |
|
|
| 932 |
|
=head2 suffix |
| 933 |
|
|
| 934 |
|
suffix all values with a string |
| 935 |
|
|
| 936 |
|
@v = suffix( '_my', @v ); |
| 937 |
|
|
| 938 |
|
=cut |
| 939 |
|
|
| 940 |
|
sub suffix { |
| 941 |
|
my $s = shift or die "suffix needs string as first argument"; |
| 942 |
|
return map { $_ . $s } grep { defined($_) } @_; |
| 943 |
|
} |
| 944 |
|
|
| 945 |
|
=head2 surround |
| 946 |
|
|
| 947 |
|
surround all values with a two strings |
| 948 |
|
|
| 949 |
|
@v = surround( 'prefix_', '_suffix', @v ); |
| 950 |
|
|
| 951 |
|
=cut |
| 952 |
|
|
| 953 |
|
sub surround { |
| 954 |
|
my $p = shift or die "surround need prefix as first argument"; |
| 955 |
|
my $s = shift or die "surround needs suffix as second argument"; |
| 956 |
|
return map { $p . $_ . $s } grep { defined($_) } @_; |
| 957 |
|
} |
| 958 |
|
|
| 959 |
|
=head2 first |
| 960 |
|
|
| 961 |
|
Return first element |
| 962 |
|
|
| 963 |
|
$v = first( @v ); |
| 964 |
|
|
| 965 |
|
=cut |
| 966 |
|
|
| 967 |
|
sub first { |
| 968 |
|
my $r = shift; |
| 969 |
|
return $r; |
| 970 |
|
} |
| 971 |
|
|
| 972 |
|
=head2 lookup |
| 973 |
|
|
| 974 |
|
Consult lookup hashes for some value |
| 975 |
|
|
| 976 |
|
@v = lookup( |
| 977 |
|
sub { |
| 978 |
|
'ffkk/peri/mfn'.rec('000') |
| 979 |
|
}, |
| 980 |
|
'ffkk','peri','200-a-200-e', |
| 981 |
|
sub { |
| 982 |
|
first(rec(200,'a')).' '.first(rec('200','e')) |
| 983 |
|
} |
| 984 |
|
); |
| 985 |
|
|
| 986 |
|
Code like above will be B<automatically generated> using L<WebPAC::Parse> from |
| 987 |
|
normal lookup definition in C<conf/lookup/something.pl> which looks like: |
| 988 |
|
|
| 989 |
|
lookup( |
| 990 |
|
# which results to return from record recorded in lookup |
| 991 |
|
sub { 'ffkk/peri/mfn' . rec('000') }, |
| 992 |
|
# from which database and input |
| 993 |
|
'ffkk','peri', |
| 994 |
|
# such that following values match |
| 995 |
|
sub { first(rec(200,'a')) . ' ' . first(rec('200','e')) }, |
| 996 |
|
# if this part is missing, we will try to match same fields |
| 997 |
|
# from lookup record and current one, or you can override |
| 998 |
|
# which records to use from current record using |
| 999 |
|
sub { rec('900','x') . ' ' . rec('900','y') }, |
| 1000 |
|
) |
| 1001 |
|
|
| 1002 |
|
You can think about this lookup as SQL (if that helps): |
| 1003 |
|
|
| 1004 |
|
select |
| 1005 |
|
sub { what } |
| 1006 |
|
from |
| 1007 |
|
database, input |
| 1008 |
|
where |
| 1009 |
|
sub { filter from lookuped record } |
| 1010 |
|
having |
| 1011 |
|
sub { optional filter on current record } |
| 1012 |
|
|
| 1013 |
|
Easy as pie, right? |
| 1014 |
|
|
| 1015 |
|
=cut |
| 1016 |
|
|
| 1017 |
|
sub lookup { |
| 1018 |
|
my ($what, $database, $input, $key, $having) = @_; |
| 1019 |
|
|
| 1020 |
|
confess "lookup needs 5 arguments: what, database, input, key, having" unless ($#_ == 4); |
| 1021 |
|
|
| 1022 |
|
warn "## lookup ($database, $input, $key)", $/ if ($debug > 1); |
| 1023 |
|
return unless (defined($lookup->{$database}->{$input}->{$key})); |
| 1024 |
|
|
| 1025 |
|
confess "lookup really need load_row_coderef added to data_structure\n" unless ($load_row_coderef); |
| 1026 |
|
|
| 1027 |
|
my $mfns; |
| 1028 |
|
my @having = $having->(); |
| 1029 |
|
|
| 1030 |
|
warn "## having = ", dump( @having ) if ($debug > 2); |
| 1031 |
|
|
| 1032 |
|
foreach my $h ( @having ) { |
| 1033 |
|
if (defined($lookup->{$database}->{$input}->{$key}->{$h})) { |
| 1034 |
|
warn "lookup for $database/$input/$key/$h return ",dump($lookup->{$database}->{$input}->{$key}->{$h}),"\n"; |
| 1035 |
|
$mfns->{$_}++ foreach keys %{ $lookup->{$database}->{$input}->{$key}->{$h} }; |
| 1036 |
|
} |
| 1037 |
|
} |
| 1038 |
|
|
| 1039 |
|
return unless ($mfns); |
| 1040 |
|
|
| 1041 |
|
my @mfns = sort keys %$mfns; |
| 1042 |
|
|
| 1043 |
|
warn "# lookup loading $database/$input/$key mfn ", join(",",@mfns)," having ",dump(@having),"\n"; |
| 1044 |
|
|
| 1045 |
|
my $old_rec = $rec; |
| 1046 |
|
my @out; |
| 1047 |
|
|
| 1048 |
|
foreach my $mfn (@mfns) { |
| 1049 |
|
$rec = $load_row_coderef->( $database, $input, $mfn ); |
| 1050 |
|
|
| 1051 |
|
warn "got $database/$input/$mfn = ", dump($rec), $/; |
| 1052 |
|
|
| 1053 |
|
my @vals = $what->(); |
| 1054 |
|
|
| 1055 |
|
push @out, ( @vals ); |
| 1056 |
|
|
| 1057 |
|
warn "lookup for mfn $mfn returned ", dump(@vals), $/; |
| 1058 |
|
} |
| 1059 |
|
|
| 1060 |
|
# if (ref($lookup->{$k}) eq 'ARRAY') { |
| 1061 |
|
# return @{ $lookup->{$k} }; |
| 1062 |
|
# } else { |
| 1063 |
|
# return $lookup->{$k}; |
| 1064 |
|
# } |
| 1065 |
|
|
| 1066 |
|
$rec = $old_rec; |
| 1067 |
|
|
| 1068 |
|
warn "## lookup returns = ", dump(@out), $/; |
| 1069 |
|
|
| 1070 |
|
return @out; |
| 1071 |
|
} |
| 1072 |
|
|
| 1073 |
|
=head2 save_into_lookup |
| 1074 |
|
|
| 1075 |
|
Save value into lookup. It associates current database, input |
| 1076 |
|
and specific keys with one or more values which will be |
| 1077 |
|
associated over MFN. |
| 1078 |
|
|
| 1079 |
|
MFN will be extracted from first occurence current of field 000 |
| 1080 |
|
in current record, or if it doesn't exist from L<_set_config> C<_mfn>. |
| 1081 |
|
|
| 1082 |
|
my $nr = save_into_lookup($database,$input,$key,sub { |
| 1083 |
|
# code which produce one or more values |
| 1084 |
|
}); |
| 1085 |
|
|
| 1086 |
|
It returns number of items saved. |
| 1087 |
|
|
| 1088 |
|
This function shouldn't be called directly, it's called from code created by |
| 1089 |
|
L<WebPAC::Parser>. |
| 1090 |
|
|
| 1091 |
|
=cut |
| 1092 |
|
|
| 1093 |
|
sub save_into_lookup { |
| 1094 |
|
my ($database,$input,$key,$coderef) = @_; |
| 1095 |
|
die "save_into_lookup needs database" unless defined($database); |
| 1096 |
|
die "save_into_lookup needs input" unless defined($input); |
| 1097 |
|
die "save_into_lookup needs key" unless defined($key); |
| 1098 |
|
die "save_into_lookup needs CODE" unless ( defined($coderef) && ref($coderef) eq 'CODE' ); |
| 1099 |
|
|
| 1100 |
|
warn "## save_into_lookup rec = ", dump($rec), " config = ", dump($config), $/ if ($debug > 2); |
| 1101 |
|
|
| 1102 |
|
my $mfn = |
| 1103 |
|
defined($rec->{'000'}->[0]) ? $rec->{'000'}->[0] : |
| 1104 |
|
defined($config->{_mfn}) ? $config->{_mfn} : |
| 1105 |
|
die "mfn not defined or zero"; |
| 1106 |
|
|
| 1107 |
|
my $nr = 0; |
| 1108 |
|
|
| 1109 |
|
foreach my $v ( $coderef->() ) { |
| 1110 |
|
$lookup->{$database}->{$input}->{$key}->{$v}->{$mfn}++; |
| 1111 |
|
warn "# saved lookup $database/$input/$key [$v] $mfn\n" if ($debug > 1); |
| 1112 |
|
$nr++; |
| 1113 |
|
} |
| 1114 |
|
|
| 1115 |
|
return $nr; |
| 1116 |
|
} |
| 1117 |
|
|
| 1118 |
|
=head2 config |
| 1119 |
|
|
| 1120 |
|
Consult config values stored in C<config.yml> |
| 1121 |
|
|
| 1122 |
|
# return database code (key under databases in yaml) |
| 1123 |
|
$database_code = config(); # use _ from hash |
| 1124 |
|
$database_name = config('name'); |
| 1125 |
|
$database_input_name = config('input name'); |
| 1126 |
|
$tag = config('input normalize tag'); |
| 1127 |
|
|
| 1128 |
|
Up to three levels are supported. |
| 1129 |
|
|
| 1130 |
|
=cut |
| 1131 |
|
|
| 1132 |
|
sub config { |
| 1133 |
|
return unless ($config); |
| 1134 |
|
|
| 1135 |
|
my $p = shift; |
| 1136 |
|
|
| 1137 |
|
$p ||= ''; |
| 1138 |
|
|
| 1139 |
|
my $v; |
| 1140 |
|
|
| 1141 |
|
warn "### getting config($p)\n" if ($debug > 1); |
| 1142 |
|
|
| 1143 |
|
my @p = split(/\s+/,$p); |
| 1144 |
|
if ($#p < 0) { |
| 1145 |
|
$v = $config->{ '_' }; # special, database code |
| 1146 |
|
} else { |
| 1147 |
|
|
| 1148 |
|
my $c = dclone( $config ); |
| 1149 |
|
|
| 1150 |
|
foreach my $k (@p) { |
| 1151 |
|
warn "### k: $k c = ",dump($c),$/ if ($debug > 1); |
| 1152 |
|
if (ref($c) eq 'ARRAY') { |
| 1153 |
|
$c = shift @$c; |
| 1154 |
|
warn "config($p) taking first occurence of '$k', probably not what you wanted!\n"; |
| 1155 |
|
last; |
| 1156 |
|
} |
| 1157 |
|
|
| 1158 |
|
if (! defined($c->{$k}) ) { |
| 1159 |
|
$c = undef; |
| 1160 |
|
last; |
| 1161 |
|
} else { |
| 1162 |
|
$c = $c->{$k}; |
| 1163 |
|
} |
| 1164 |
|
} |
| 1165 |
|
$v = $c if ($c); |
| 1166 |
|
|
| 1167 |
|
} |
| 1168 |
|
|
| 1169 |
|
warn "## config( '$p' ) = ",dump( $v ),$/ if ($v && $debug); |
| 1170 |
|
warn "config( '$p' ) is empty\n" if (! $v); |
| 1171 |
|
|
| 1172 |
|
return $v; |
| 1173 |
|
} |
| 1174 |
|
|
| 1175 |
|
=head2 id |
| 1176 |
|
|
| 1177 |
|
Returns unique id of this record |
| 1178 |
|
|
| 1179 |
|
$id = id(); |
| 1180 |
|
|
| 1181 |
|
Returns C<42/2> for 2nd occurence of MFN 42. |
| 1182 |
|
|
| 1183 |
|
=cut |
| 1184 |
|
|
| 1185 |
|
sub id { |
| 1186 |
|
my $mfn = $config->{_mfn} || die "no _mfn in config data"; |
| 1187 |
|
return $mfn . $#{$marc_record} ? $#{$marc_record} + 1 : ''; |
| 1188 |
|
} |
| 1189 |
|
|
| 1190 |
|
=head2 join_with |
| 1191 |
|
|
| 1192 |
|
Joins walues with some delimiter |
| 1193 |
|
|
| 1194 |
|
$v = join_with(", ", @v); |
| 1195 |
|
|
| 1196 |
|
=cut |
| 1197 |
|
|
| 1198 |
|
sub join_with { |
| 1199 |
|
my $d = shift; |
| 1200 |
|
warn "### join_with('$d',",dump(@_),")\n" if ($debug > 2); |
| 1201 |
|
my $v = join($d, grep { defined($_) && $_ ne '' } @_); |
| 1202 |
|
return '' unless defined($v); |
| 1203 |
|
return $v; |
| 1204 |
|
} |
| 1205 |
|
|
| 1206 |
|
=head2 split_rec_on |
| 1207 |
|
|
| 1208 |
|
Split record subfield on some regex and take one of parts out |
| 1209 |
|
|
| 1210 |
|
$a_before_semi_column = |
| 1211 |
|
split_rec_on('200','a', /\s*;\s*/, $part); |
| 1212 |
|
|
| 1213 |
|
C<$part> is optional number of element. First element is |
| 1214 |
|
B<1>, not 0! |
| 1215 |
|
|
| 1216 |
|
If there is no C<$part> parameter or C<$part> is 0, this function will |
| 1217 |
|
return all values produced by splitting. |
| 1218 |
|
|
| 1219 |
|
=cut |
| 1220 |
|
|
| 1221 |
|
sub split_rec_on { |
| 1222 |
|
die "split_rec_on need (fld,sf,regex[,part]" if ($#_ < 2); |
| 1223 |
|
|
| 1224 |
|
my ($fld, $sf, $regex, $part) = @_; |
| 1225 |
|
warn "### regex ", ref($regex), $regex, $/ if ($debug > 2); |
| 1226 |
|
|
| 1227 |
|
my @r = rec( $fld, $sf ); |
| 1228 |
|
my $v = shift @r; |
| 1229 |
|
warn "### first rec($fld,$sf) = ",dump($v),$/ if ($debug > 2); |
| 1230 |
|
|
| 1231 |
|
return '' if ( ! defined($v) || $v =~ /^\s*$/); |
| 1232 |
|
|
| 1233 |
|
my @s = split( $regex, $v ); |
| 1234 |
|
warn "## split_rec_on($fld,$sf,$regex,$part) = ",dump(@s),$/ if ($debug > 1); |
| 1235 |
|
if ($part && $part > 0) { |
| 1236 |
|
return $s[ $part - 1 ]; |
| 1237 |
|
} else { |
| 1238 |
|
return @s; |
| 1239 |
|
} |
| 1240 |
|
} |
| 1241 |
|
|
| 1242 |
|
# END |
| 1243 |
|
1; |
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