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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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rec1 rec2 rec |
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regex prefix suffix surround |
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first lookup join_with |
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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 'WebPAC::Common'; |
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use Data::Dumper; |
#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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# 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 0.02 |
Version 0.07 |
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=cut |
=cut |
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our $VERSION = '0.02'; |
our $VERSION = '0.07'; |
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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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It contains several assumptions: |
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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=over |
=head1 FUNCTIONS |
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=item * |
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format of fields is defined using C<v123^a> notation for repeatable fields |
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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 * |
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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source data records (C<$rec>) have unique identifiers in field C<000> |
=head2 data_structure |
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=item * |
Return data structure |
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optional C<eval{length('v123^a') == 3}> tag at B<beginning of format> will be |
my $ds = WebPAC::Normalize::data_structure( |
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perl code that is evaluated before producing output (value of field will be |
lookup => $lookup->lookup_hash, |
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interpolated before that) |
row => $row, |
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rules => $normalize_pl_config, |
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marc_encoding => 'utf-8', |
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); |
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=item * |
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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optional C<filter{filter_name}> at B<begining of format> will apply perl |
This function will B<die> if normalizastion can't be evaled. |
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code defined as code ref on format after field substitution to producing |
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output |
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=item * |
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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optional C<lookup{...}> will be then performed. See C<WebPAC::Lookups>. |
=cut |
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=item * |
sub data_structure { |
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my $arg = {@_}; |
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at end, optional C<format>s rules are resolved. Format rules are similar to |
die "need row argument" unless ($arg->{row}); |
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C<sprintf> and can also contain C<lookup{...}> which is performed after |
die "need normalisation argument" unless ($arg->{rules}); |
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values are inserted in format. |
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=back |
no strict 'subs'; |
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_set_lookup( $arg->{lookup} ); |
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_set_rec( $arg->{row} ); |
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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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This also describes order in which transformations are applied (eval, |
return _get_ds(); |
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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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=head2 _set_rec |
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Set current record hash |
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_set_rec( $rec ); |
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=head1 FUNCTIONS |
=cut |
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=head2 new |
my $rec; |
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Create new normalisation object |
sub _set_rec { |
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$rec = shift or die "no record hash"; |
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} |
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my $n = new WebPAC::Normalize::Something( |
=head2 _get_ds |
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filter => { |
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'filter_name_1' => sub { |
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# filter code |
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return length($_); |
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}, ... |
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}, |
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db => $db_obj, |
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lookup_regex => $lookup->regex, |
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lookup => $lookup_obj, |
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); |
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Parametar C<filter> defines user supplied snippets of perl code which can |
Return hash formatted as data structure |
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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 |
my $ds = _get_ds(); |
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in structures. If you pass this parametar, you must also pass C<lookup> |
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which is C<WebPAC::Lookup> object. |
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=cut |
=cut |
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sub new { |
my ($out,$marc_record, $marc_encoding, $marc_repeatable_subfield, $marc_indicators); |
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my $class = shift; |
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my $self = {@_}; |
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bless($self, $class); |
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my $r = $self->{'lookup_regex'} ? 1 : 0; |
sub _get_ds { |
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my $l = $self->{'lookup'} ? 1 : 0; |
return $out; |
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} |
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my $log = $self->_get_logger(); |
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# those two must be in pair |
=head2 _clean_ds |
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if ( ($r & $l) != ($r || $l) ) { |
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my $log = $self->_get_logger(); |
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$log->logdie("lookup_regex and lookup must be in pair"); |
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} |
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$log->logdie("lookup must be WebPAC::Lookup object") if ($self->{'lookup'} && ! $self->{'lookup'}->isa('WebPAC::Lookup')); |
Clean data structure hash for next record |
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$self ? return $self : return undef; |
_clean_ds(); |
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} |
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=cut |
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=head2 data_structure |
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_encoding = $a->{marc_encoding}; |
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} |
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Create in-memory data structure which represents normalized layout from |
=head2 _set_lookup |
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C<conf/normalize/*.xml>. |
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This structures are used to produce output. |
Set current lookup hash |
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my $ds = $webpac->data_structure($rec); |
_set_lookup( $lookup ); |
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=cut |
=cut |
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sub data_structure { |
my $lookup; |
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my $self = shift; |
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my $log = $self->_get_logger(); |
sub _set_lookup { |
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$lookup = shift; |
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} |
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my $rec = shift; |
=head2 _get_marc_fields |
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$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
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$log->debug("data_structure rec = ", sub { Dumper($rec) }); |
Get all fields defined by calls to C<marc> |
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$log->logdie("need unique ID (mfn) in field 000 of record ", sub { Dumper($rec) } ) unless (defined($rec->{'000'})); |
$marc->add_fields( WebPAC::Normalize:_get_marc_fields() ); |
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my $mfn = $rec->{'000'}->[0] || $log->logdie("field 000 isn't array!"); |
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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my $cache_file; |
Repeatable field is created when there is second occurence of same subfield or |
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if any of indicators are different. |
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if ($self->{'db'}) { |
This is sane for most cases. Something like: |
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my $ds = $self->{'db'}->load_ds( $mfn ); |
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$log->debug("load_ds( rec = ", sub { Dumper($rec) }, ") = ", sub { Dumper($ds) }); |
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return $ds if ($ds); |
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$log->debug("cache miss, creating"); |
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} |
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undef $self->{'currnet_filename'}; |
900a-1 900b-1 900c-1 |
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undef $self->{'headline'}; |
900a-2 900b-2 |
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900a-3 |
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my @sorted_tags; |
will be created from any combination of: |
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if ($self->{tags_by_order}) { |
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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 $ds; |
900a-1 900a-2 900a-3 900b-1 900b-2 900c-1 |
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$log->debug("tags: ",sub { join(", ",@sorted_tags) }); |
and following rules: |
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foreach my $field (@sorted_tags) { |
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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my $row; |
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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#print "field $field [",$self->{'tag'},"] = ",Dumper($self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}); |
.... |
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foreach my $tag (@{$self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}}) { |
=cut |
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my $format; |
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$log->logdie("expected tag HASH and got $tag") unless (ref($tag) eq 'HASH'); |
sub _get_marc_fields { |
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$format = $tag->{'value'} || $tag->{'content'}; |
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$log->debug("format: $format"); |
return if (! $marc_record || ref($marc_record) ne 'ARRAY' || $#{ $marc_record } < 0); |
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my @v; |
# first, sort all existing fields |
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if ($self->{'lookup_regex'} && $format =~ $self->{'lookup_regex'}) { |
# XXX might not be needed, but modern perl might randomize elements in hash |
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@v = $self->fill_in_to_arr($rec,$format); |
my @sorted_marc_record = sort { |
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} else { |
$a->[0] . $a->[3] cmp $b->[0] . $b->[3] |
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@v = $self->parse_to_arr($rec,$format); |
} @{ $marc_record }; |
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} |
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next if (! @v); |
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if ($tag->{'sort'}) { |
# output marc fields |
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@v = $self->sort_arr(@v); |
my @m; |
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} |
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# use format? |
# count unique field-subfields (used for offset when walking to next subfield) |
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if ($tag->{'format_name'}) { |
my $u; |
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@v = map { $self->apply_format($tag->{'format_name'},$tag->{'format_delimiter'},$_) } @v; |
map { $u->{ $_->[0] . $_->[3] }++ } @sorted_marc_record; |
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} |
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# delimiter will join repeatable fields |
if ($debug) { |
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if ($tag->{'delimiter'}) { |
warn "## marc_repeatable_subfield ", dump( $marc_repeatable_subfield ), $/; |
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@v = ( join($tag->{'delimiter'}, @v) ); |
warn "## marc_record ", dump( $marc_record ), $/; |
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} |
warn "## sorted_marc_record ", dump( \@sorted_marc_record ), $/; |
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warn "## subfield count ", dump( $u ), $/; |
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} |
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# default types |
my $len = $#sorted_marc_record; |
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my @types = qw(display search); |
my $visited; |
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# override by type attribute |
my $i = 0; |
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@types = ( $tag->{'type'} ) if ($tag->{'type'}); |
my $field; |
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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}}, $last; |
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} else { |
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push @{$row->{$type}}, @v; |
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} |
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} |
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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 = $sorted_marc_record[$i]; |
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my $name = $self->{'import_xml'}->{'indexer'}->{$field}->{'name'}; |
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my $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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$ds->{$row_name} = $row; |
# 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)' : '', $/, |
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if ($#$field >= 0); |
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$log->debug("row $field: ",sub { Dumper($row) }); |
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} |
} |
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} |
# if field exists |
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if ( $#$field >= 0 ) { |
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$self->{'db'}->save_ds( |
if ( |
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id => $mfn, |
$row->[0] ne $field->[0] || # field |
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ds => $ds, |
$row->[1] ne $field->[1] || # i1 |
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) if ($self->{'db'}); |
$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 = $row; |
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$log->debug("ds: ", sub { Dumper($ds) }); |
} else { |
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# append new subfields to existing field |
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push @$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 = $row; |
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} |
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$log->logconfess("data structure returned is not array any more!") if wantarray; |
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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return $ds; |
if ($#$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 parse |
=head2 _debug |
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Perform smart parsing of string, skipping delimiters for fields which aren't |
Change level of debug warnings |
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defined. It can also eval code in format starting with C<eval{...}> and |
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return output or nothing depending on eval code. |
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my $text = $webpac->parse($rec,'eval{"v901^a" eq "Deskriptor"}descriptor: v250^a', $i); |
_debug( 2 ); |
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=cut |
=cut |
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sub parse { |
sub _debug { |
295 |
my $self = shift; |
my $l = shift; |
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return $debug unless defined($l); |
297 |
my ($rec, $format_utf8, $i) = @_; |
$debug = $l; |
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} |
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return if (! $format_utf8); |
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my $log = $self->_get_logger(); |
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$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
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$i = 0 if (! $i); |
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my $format = $self->_x($format_utf8) || $log->logconfess("can't convert '$format_utf8' from UTF-8 to ",$self->{'code_page'}); |
=head1 Functions to create C<data_structure> |
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302 |
my @out; |
Those functions generally have to first in your normalization file. |
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304 |
$log->debug("format: $format"); |
=head2 tag |
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306 |
my $eval_code; |
Define new tag for I<search> and I<display>. |
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# remove eval{...} from beginning |
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$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
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my $filter_name; |
tag('Title', rec('200','a') ); |
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# remove filter{...} from beginning |
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$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
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my $prefix; |
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my $all_found=0; |
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while ($format =~ s/^(.*?)(v|s)(\d+)(?:\^(\w))?//s) { |
=cut |
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313 |
my $del = $1 || ''; |
sub tag { |
314 |
$prefix ||= $del if ($all_found == 0); |
my $name = shift or die "tag needs name as first argument"; |
315 |
|
my @o = grep { defined($_) && $_ ne '' } @_; |
316 |
|
return unless (@o); |
317 |
|
$out->{$name}->{tag} = $name; |
318 |
|
$out->{$name}->{search} = \@o; |
319 |
|
$out->{$name}->{display} = \@o; |
320 |
|
} |
321 |
|
|
322 |
# repeatable index |
=head2 display |
|
my $r = $i; |
|
|
$r = 0 if (lc("$2") eq 's'); |
|
323 |
|
|
324 |
my $found = 0; |
Define tag just for I<display> |
|
my $tmp = $self->get_data(\$rec,$3,$4,$r,\$found); |
|
325 |
|
|
326 |
if ($found) { |
@v = display('Title', rec('200','a') ); |
|
push @out, $del; |
|
|
push @out, $tmp; |
|
|
$all_found += $found; |
|
|
} |
|
|
} |
|
327 |
|
|
328 |
return if (! $all_found); |
=cut |
329 |
|
|
330 |
my $out = join('',@out); |
sub display { |
331 |
|
my $name = shift or die "display needs name as first argument"; |
332 |
|
my @o = grep { defined($_) && $_ ne '' } @_; |
333 |
|
return unless (@o); |
334 |
|
$out->{$name}->{tag} = $name; |
335 |
|
$out->{$name}->{display} = \@o; |
336 |
|
} |
337 |
|
|
338 |
if ($out) { |
=head2 search |
|
# add rest of format (suffix) |
|
|
$out .= $format; |
|
339 |
|
|
340 |
# add prefix if not there |
Prepare values just for I<search> |
|
$out = $prefix . $out if ($out !~ m/^\Q$prefix\E/); |
|
341 |
|
|
342 |
$log->debug("result: $out"); |
@v = search('Title', rec('200','a') ); |
|
} |
|
343 |
|
|
344 |
if ($eval_code) { |
=cut |
|
my $eval = $self->fill_in($rec,$eval_code,$i) || return; |
|
|
$log->debug("about to eval{$eval} format: $out"); |
|
|
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"); |
|
|
} |
|
345 |
|
|
346 |
return $out; |
sub search { |
347 |
|
my $name = shift or die "search needs name as first argument"; |
348 |
|
my @o = grep { defined($_) && $_ ne '' } @_; |
349 |
|
return unless (@o); |
350 |
|
$out->{$name}->{tag} = $name; |
351 |
|
$out->{$name}->{search} = \@o; |
352 |
} |
} |
353 |
|
|
354 |
=head2 parse_to_arr |
=head2 marc |
355 |
|
|
356 |
Similar to C<parse>, but returns array of all repeatable fields |
Save value for MARC field |
357 |
|
|
358 |
my @arr = $webpac->parse_to_arr($rec,'v250^a'); |
marc('900','a', rec('200','a') ); |
359 |
|
|
360 |
=cut |
=cut |
361 |
|
|
362 |
sub parse_to_arr { |
sub marc { |
363 |
my $self = shift; |
my $f = shift or die "marc needs field"; |
364 |
|
die "marc field must be numer" unless ($f =~ /^\d+$/); |
365 |
|
|
366 |
my ($rec, $format_utf8) = @_; |
my $sf = shift or die "marc needs subfield"; |
367 |
|
|
368 |
my $log = $self->_get_logger(); |
foreach (@_) { |
369 |
|
my $v = $_; # make var read-write for Encode |
370 |
|
next unless (defined($v) && $v !~ /^\s*$/); |
371 |
|
from_to($v, 'iso-8859-2', $marc_encoding) if ($marc_encoding); |
372 |
|
my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
373 |
|
push @{ $marc_record }, [ $f, $i1, $i2, $sf => $v ]; |
374 |
|
} |
375 |
|
} |
376 |
|
|
377 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
=head2 marc_repeatable_subfield |
|
return if (! $format_utf8); |
|
378 |
|
|
379 |
my $i = 0; |
Save values for MARC repetable subfield |
|
my @arr; |
|
380 |
|
|
381 |
while (my $v = $self->parse($rec,$format_utf8,$i++)) { |
marc_repeatable_subfield('910', 'z', rec('909') ); |
|
push @arr, $v; |
|
|
} |
|
382 |
|
|
383 |
$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
=cut |
384 |
|
|
385 |
return @arr; |
sub marc_repeatable_subfield { |
386 |
|
my ($f,$sf) = @_; |
387 |
|
die "marc_repeatable_subfield need field and subfield!\n" unless ($f && $sf); |
388 |
|
$marc_repeatable_subfield->{ $f . $sf }++; |
389 |
|
marc(@_); |
390 |
} |
} |
391 |
|
|
392 |
|
=head2 marc_indicators |
393 |
|
|
394 |
=head2 fill_in |
Set both indicators for MARC field |
395 |
|
|
396 |
Workhourse of all: takes record from in-memory structure of database and |
marc_indicators('900', ' ', 1); |
|
strings with placeholders and returns string or array of with substituted |
|
|
values from record. |
|
397 |
|
|
398 |
my $text = $webpac->fill_in($rec,'v250^a'); |
Any indicator value other than C<0-9> will be treated as undefined. |
399 |
|
|
400 |
Optional argument is ordinal number for repeatable fields. By default, |
=cut |
|
it's assume to be first repeatable field (fields are perl array, so first |
|
|
element is 0). |
|
|
Following example will read second value from repeatable field. |
|
|
|
|
|
my $text = $webpac->fill_in($rec,'Title: v250^a',1); |
|
401 |
|
|
402 |
This function B<does not> perform parsing of format to inteligenty skip |
sub marc_indicators { |
403 |
delimiters before fields which aren't used. |
my $f = shift || die "marc_indicators need field!\n"; |
404 |
|
my ($i1,$i2) = @_; |
405 |
|
die "marc_indicators($f, ...) need i1!\n" unless(defined($i1)); |
406 |
|
die "marc_indicators($f, $i1, ...) need i2!\n" unless(defined($i2)); |
407 |
|
|
408 |
This method will automatically decode UTF-8 string to local code page |
$i1 = ' ' if ($i1 !~ /^\d$/); |
409 |
if needed. |
$i2 = ' ' if ($i2 !~ /^\d$/); |
410 |
|
@{ $marc_indicators->{$f} } = ($i1,$i2); |
411 |
|
} |
412 |
|
|
|
=cut |
|
413 |
|
|
414 |
sub fill_in { |
=head1 Functions to extract data from input |
|
my $self = shift; |
|
415 |
|
|
416 |
my $log = $self->_get_logger(); |
This function should be used inside functions to create C<data_structure> described |
417 |
|
above. |
418 |
|
|
419 |
my $rec = shift || $log->logconfess("need data record"); |
=head2 rec1 |
|
my $format = shift || $log->logconfess("need format to parse"); |
|
|
# iteration (for repeatable fields) |
|
|
my $i = shift || 0; |
|
420 |
|
|
421 |
$log->logdie("infitite loop in format $format") if ($i > ($self->{'max_mfn'} || 9999)); |
Return all values in some field |
422 |
|
|
423 |
# FIXME remove for speedup? |
@v = rec1('200') |
|
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
|
424 |
|
|
425 |
if (utf8::is_utf8($format)) { |
TODO: order of values is probably same as in source data, need to investigate that |
|
$format = $self->_x($format); |
|
|
} |
|
426 |
|
|
427 |
my $found = 0; |
=cut |
428 |
|
|
429 |
my $eval_code; |
sub rec1 { |
430 |
# remove eval{...} from beginning |
my $f = shift; |
431 |
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
return unless (defined($rec) && defined($rec->{$f})); |
432 |
|
if (ref($rec->{$f}) eq 'ARRAY') { |
433 |
my $filter_name; |
return map { |
434 |
# remove filter{...} from beginning |
if (ref($_) eq 'HASH') { |
435 |
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
values %{$_}; |
|
|
|
|
# do actual replacement of placeholders |
|
|
# 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,$2,0,\$found)/ges; |
|
|
|
|
|
if ($found) { |
|
|
$log->debug("format: $format"); |
|
|
if ($eval_code) { |
|
|
my $eval = $self->fill_in($rec,$eval_code,$i); |
|
|
return if (! $self->_eval($eval)); |
|
|
} |
|
|
if ($filter_name && $self->{'filter'}->{$filter_name}) { |
|
|
$log->debug("filter '$filter_name' for $format"); |
|
|
$format = $self->{'filter'}->{$filter_name}->($format); |
|
|
return unless(defined($format)); |
|
|
$log->debug("filter result: $format"); |
|
|
} |
|
|
# do we have lookups? |
|
|
if ($self->{'lookup'}) { |
|
|
if ($self->{'lookup'}->can('lookup')) { |
|
|
return $self->{'lookup'}->lookup($format); |
|
436 |
} else { |
} else { |
437 |
$log->warn("Have lookup object but can't invoke lookup method"); |
$_; |
438 |
} |
} |
439 |
} else { |
} @{ $rec->{$f} }; |
440 |
return $format; |
} elsif( defined($rec->{$f}) ) { |
441 |
} |
return $rec->{$f}; |
|
} else { |
|
|
return; |
|
442 |
} |
} |
443 |
} |
} |
444 |
|
|
445 |
|
=head2 rec2 |
446 |
|
|
447 |
=head2 fill_in_to_arr |
Return all values in specific field and subfield |
|
|
|
|
Similar to C<fill_in>, but returns array of all repeatable fields. Usable |
|
|
for fields which have lookups, so they shouldn't be parsed but rather |
|
|
C<fill_id>ed. |
|
448 |
|
|
449 |
my @arr = $webpac->fill_in_to_arr($rec,'[v900];;[v250^a]'); |
@v = rec2('200','a') |
450 |
|
|
451 |
=cut |
=cut |
452 |
|
|
453 |
sub fill_in_to_arr { |
sub rec2 { |
454 |
my $self = shift; |
my $f = shift; |
455 |
|
return unless (defined($rec && $rec->{$f})); |
456 |
|
my $sf = shift; |
457 |
|
return map { $_->{$sf} } grep { ref($_) eq 'HASH' && $_->{$sf} } @{ $rec->{$f} }; |
458 |
|
} |
459 |
|
|
460 |
my ($rec, $format_utf8) = @_; |
=head2 rec |
461 |
|
|
462 |
my $log = $self->_get_logger(); |
syntaxtic sugar for |
463 |
|
|
464 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
@v = rec('200') |
465 |
return if (! $format_utf8); |
@v = rec('200','a') |
466 |
|
|
467 |
my $i = 0; |
=cut |
|
my @arr; |
|
468 |
|
|
469 |
while (my @v = $self->fill_in($rec,$format_utf8,$i++)) { |
sub rec { |
470 |
push @arr, @v; |
if ($#_ == 0) { |
471 |
|
return rec1(@_); |
472 |
|
} elsif ($#_ == 1) { |
473 |
|
return rec2(@_); |
474 |
} |
} |
|
|
|
|
$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
|
|
|
|
|
return @arr; |
|
475 |
} |
} |
476 |
|
|
477 |
|
=head2 regex |
478 |
|
|
479 |
=head2 get_data |
Apply regex to some or all values |
|
|
|
|
Returns value from record. |
|
|
|
|
|
my $text = $self->get_data(\$rec,$f,$sf,$i,\$found); |
|
|
|
|
|
Arguments are: |
|
|
record reference C<$rec>, |
|
|
field C<$f>, |
|
|
optional subfiled C<$sf>, |
|
|
index for repeatable values C<$i>. |
|
480 |
|
|
481 |
Optinal variable C<$found> will be incremeted if there |
@v = regex( 's/foo/bar/g', @v ); |
|
is field. |
|
|
|
|
|
Returns value or empty string. |
|
482 |
|
|
483 |
=cut |
=cut |
484 |
|
|
485 |
sub get_data { |
sub regex { |
486 |
my $self = shift; |
my $r = shift; |
487 |
|
my @out; |
488 |
my ($rec,$f,$sf,$i,$found) = @_; |
#warn "r: $r\n", dump(\@_); |
489 |
|
foreach my $t (@_) { |
490 |
if ($$rec->{$f}) { |
next unless ($t); |
491 |
return '' if (! $$rec->{$f}->[$i]); |
eval "\$t =~ $r"; |
492 |
no strict 'refs'; |
push @out, $t if ($t && $t ne ''); |
|
if ($sf && $$rec->{$f}->[$i]->{$sf}) { |
|
|
$$found++ if (defined($$found)); |
|
|
return $$rec->{$f}->[$i]->{$sf}; |
|
|
} elsif (! $sf && $$rec->{$f}->[$i]) { |
|
|
$$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; |
|
|
} else { |
|
|
return $$rec->{$f}->[$i]; |
|
|
} |
|
|
} else { |
|
|
return ''; |
|
|
} |
|
|
} else { |
|
|
return ''; |
|
493 |
} |
} |
494 |
|
return @out; |
495 |
} |
} |
496 |
|
|
497 |
|
=head2 prefix |
498 |
|
|
499 |
=head2 apply_format |
Prefix all values with a string |
|
|
|
|
Apply format specified in tag with C<format_name="name"> and |
|
|
C<format_delimiter=";;">. |
|
500 |
|
|
501 |
my $text = $webpac->apply_format($format_name,$format_delimiter,$data); |
@v = prefix( 'my_', @v ); |
|
|
|
|
Formats can contain C<lookup{...}> if you need them. |
|
502 |
|
|
503 |
=cut |
=cut |
504 |
|
|
505 |
sub apply_format { |
sub prefix { |
506 |
my $self = shift; |
my $p = shift or die "prefix needs string as first argument"; |
507 |
|
return map { $p . $_ } grep { defined($_) } @_; |
508 |
my ($name,$delimiter,$data) = @_; |
} |
|
|
|
|
my $log = $self->_get_logger(); |
|
|
|
|
|
if (! $self->{'import_xml'}->{'format'}->{$name}) { |
|
|
$log->warn("<format name=\"$name\"> is not defined in ",$self->{'import_xml_file'}); |
|
|
return $data; |
|
|
} |
|
|
|
|
|
$log->warn("no delimiter for format $name") if (! $delimiter); |
|
509 |
|
|
510 |
my $format = $self->_x($self->{'import_xml'}->{'format'}->{$name}->{'content'}) || $log->logdie("can't find format '$name'"); |
=head2 suffix |
511 |
|
|
512 |
my @data = split(/\Q$delimiter\E/, $data); |
suffix all values with a string |
513 |
|
|
514 |
my $out = sprintf($format, @data); |
@v = suffix( '_my', @v ); |
|
$log->debug("using format $name [$format] on $data to produce: $out"); |
|
515 |
|
|
516 |
if ($self->{'lookup_regex'} && $out =~ $self->{'lookup_regex'}) { |
=cut |
|
return $self->{'lookup'}->lookup($out); |
|
|
} else { |
|
|
return $out; |
|
|
} |
|
517 |
|
|
518 |
|
sub suffix { |
519 |
|
my $s = shift or die "suffix needs string as first argument"; |
520 |
|
return map { $_ . $s } grep { defined($_) } @_; |
521 |
} |
} |
522 |
|
|
523 |
=head2 sort_arr |
=head2 surround |
524 |
|
|
525 |
Sort array ignoring case and html in data |
surround all values with a two strings |
526 |
|
|
527 |
my @sorted = $webpac->sort_arr(@unsorted); |
@v = surround( 'prefix_', '_suffix', @v ); |
528 |
|
|
529 |
=cut |
=cut |
530 |
|
|
531 |
sub sort_arr { |
sub surround { |
532 |
my $self = shift; |
my $p = shift or die "surround need prefix as first argument"; |
533 |
|
my $s = shift or die "surround needs suffix as second argument"; |
534 |
my $log = $self->_get_logger(); |
return map { $p . $_ . $s } grep { defined($_) } @_; |
|
|
|
|
# FIXME add Schwartzian Transformation? |
|
|
|
|
|
my @sorted = sort { |
|
|
$a =~ s#<[^>]+/*>##; |
|
|
$b =~ s#<[^>]+/*>##; |
|
|
lc($b) cmp lc($a) |
|
|
} @_; |
|
|
$log->debug("sorted values: ",sub { join(", ",@sorted) }); |
|
|
|
|
|
return @sorted; |
|
535 |
} |
} |
536 |
|
|
537 |
|
=head2 first |
538 |
|
|
539 |
=head1 INTERNAL METHODS |
Return first element |
540 |
|
|
541 |
=head2 _sort_by_order |
$v = first( @v ); |
|
|
|
|
Sort xml tags data structure accoding to C<order=""> attribute. |
|
542 |
|
|
543 |
=cut |
=cut |
544 |
|
|
545 |
sub _sort_by_order { |
sub first { |
546 |
my $self = shift; |
my $r = shift; |
547 |
|
return $r; |
|
my $va = $self->{'import_xml'}->{'indexer'}->{$a}->{'order'} || |
|
|
$self->{'import_xml'}->{'indexer'}->{$a}; |
|
|
my $vb = $self->{'import_xml'}->{'indexer'}->{$b}->{'order'} || |
|
|
$self->{'import_xml'}->{'indexer'}->{$b}; |
|
|
|
|
|
return $va <=> $vb; |
|
548 |
} |
} |
549 |
|
|
550 |
=head2 _x |
=head2 lookup |
|
|
|
|
Convert strings from C<conf/normalize/*.xml> encoding into application |
|
|
specific encoding (optinally specified using C<code_page> to C<new> |
|
|
constructor). |
|
551 |
|
|
552 |
my $text = $n->_x('normalize text string'); |
Consult lookup hashes for some value |
553 |
|
|
554 |
This is a stub so that other modules doesn't have to implement it. |
@v = lookup( $v ); |
555 |
|
@v = lookup( @v ); |
556 |
|
|
557 |
=cut |
=cut |
558 |
|
|
559 |
sub _x { |
sub lookup { |
560 |
my $self = shift; |
my $k = shift or return; |
561 |
return shift; |
return unless (defined($lookup->{$k})); |
562 |
|
if (ref($lookup->{$k}) eq 'ARRAY') { |
563 |
|
return @{ $lookup->{$k} }; |
564 |
|
} else { |
565 |
|
return $lookup->{$k}; |
566 |
|
} |
567 |
} |
} |
568 |
|
|
569 |
|
=head2 join_with |
570 |
|
|
571 |
=head1 AUTHOR |
Joins walues with some delimiter |
|
|
|
|
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
|
|
|
|
|
=head1 COPYRIGHT & LICENSE |
|
572 |
|
|
573 |
Copyright 2005 Dobrica Pavlinusic, All Rights Reserved. |
$v = join_with(", ", @v); |
|
|
|
|
This program is free software; you can redistribute it and/or modify it |
|
|
under the same terms as Perl itself. |
|
574 |
|
|
575 |
=cut |
=cut |
576 |
|
|
577 |
1; # End of WebPAC::DB |
sub join_with { |
578 |
|
my $d = shift; |
579 |
|
return join($d, grep { defined($_) && $_ ne '' } @_); |
580 |
|
} |
581 |
|
|
582 |
|
# END |
583 |
|
1; |