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package WebPAC::Normalize; |
package WebPAC::Normalize; |
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use Exporter 'import'; |
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our @EXPORT = qw/ |
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_set_ds _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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to |
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search_display search display sorted |
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rec1 rec2 rec |
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frec frec_eq frec_ne |
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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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get set |
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count |
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/; |
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use warnings; |
use warnings; |
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use strict; |
use strict; |
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use Data::Dumper; |
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use Storable; |
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=head1 NAME |
#use base qw/WebPAC::Common/; |
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use Data::Dump qw/dump/; |
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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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_debug( $debug ); |
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# FIXME |
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use WebPAC::Normalize::ISBN; |
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push @EXPORT, ( 'isbn_10', 'isbn_13' ); |
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use WebPAC::Normalize::MARC; |
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push @EXPORT, ( qw/ |
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marc marc_indicators marc_repeatable_subfield |
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marc_compose marc_leader marc_fixed |
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marc_duplicate marc_remove marc_count |
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marc_original_order |
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marc_template |
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/); |
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WebPAC::Normalize - normalisation of source file |
use Storable qw/dclone/; |
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=head1 VERSION |
=head1 NAME |
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Version 0.01 |
WebPAC::Normalize - describe normalisaton rules using sets |
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=cut |
=cut |
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our $VERSION = '0.01'; |
our $VERSION = '0.36'; |
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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<search_display>, C<display>, C<search> and |
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C<marc>. |
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=head1 FUNCTIONS |
=head1 FUNCTIONS |
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=head2 new |
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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Create new normalisation object |
Return data structure |
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my $n = new WebPAC::Normalize::Something( |
my $ds = WebPAC::Normalize::data_structure( |
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cache_data_structure => './cache/ds/', |
lookup => $lookup_hash, |
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lookup_regex => $lookup->regex, |
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) = @_; |
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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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Optional parameter C<cache_data_structure> defines path to directory |
Options C<row>, C<rules> and C<log> are mandatory while all |
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in which cache file for C<data_structure> call will be created. |
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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Recommended parametar C<lookup_regex> is used to enable parsing of lookups |
This function will B<die> if normalizastion can't be evaled. |
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in structures. |
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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 |
=cut |
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sub new { |
my $load_row_coderef; |
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my $class = shift; |
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my $self = {@_}; |
sub data_structure { |
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bless($self, $class); |
my $arg = {@_}; |
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die "need row argument" unless ($arg->{row}); |
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die "need normalisation argument" unless ($arg->{rules}); |
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$self->setup_cache_dir( $self->{'cache_data_structure'} ); |
_set_lookup( $arg->{lookup} ) if defined($arg->{lookup}); |
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_set_ds( $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 = $arg->{load_row_coderef}; |
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no strict 'subs'; |
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no warnings 'redefine'; |
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eval "$arg->{rules};"; |
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die "error evaling $arg->{rules}: $@\n" if ($@); |
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$self ? return $self : return undef; |
return _get_ds(); |
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} |
} |
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=head2 setup_cache_dir |
=head2 _set_ds |
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Check if specified cache directory exist, and if not, disable caching. |
Set current record hash |
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$setup_cache_dir('./cache/ds/'); |
_set_ds( $rec ); |
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If you pass false or zero value to this function, it will disable |
=cut |
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cacheing. |
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my $rec; |
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sub _set_ds { |
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$rec = shift or die "no record hash"; |
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$WebPAC::Normalize::MARC::rec = $rec; |
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} |
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=head2 |
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my $rec = _get_rec(); |
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=cut |
=cut |
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sub setup_cache_dir { |
sub _get_rec { $rec }; |
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my $self = shift; |
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my $dir = shift; |
=head2 _set_config |
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my $log = $self->_get_logger(); |
Set current config hash |
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if ($dir) { |
_set_config( $config ); |
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my $msg; |
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if (! -e $dir) { |
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$msg = "doesn't exist"; |
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} elsif (! -d $dir) { |
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$msg = "is not directory"; |
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} elsif (! -w $dir) { |
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$msg = "not writable"; |
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} |
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if ($msg) { |
Magic keys are: |
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undef $self->{'cache_data_structure'}; |
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$log->warn("cache_data_structure $dir $msg, disabling..."); |
=over 4 |
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} else { |
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$log->debug("using cache dir $dir"); |
=item _ |
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} |
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} else { |
Code of current database |
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$log->debug("disabling cache"); |
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undef $self->{'cache_data_structure'}; |
=item _mfn |
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} |
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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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=head2 data_structure |
Return hash formatted as data structure |
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Create in-memory data structure which represents normalized layout from |
my $ds = _get_ds(); |
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C<conf/normalize/*.xml>. |
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This structures are used to produce output. |
=cut |
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my @ds = $webpac->data_structure($rec); |
my $out; |
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B<Note: historical oddity follows> |
sub _get_ds { |
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#warn "## out = ",dump($out); |
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return $out; |
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} |
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This method will also set C<< $webpac->{'currnet_filename'} >> if there is |
=head2 _clean_ds |
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C<< <filename> >> tag and C<< $webpac->{'headline'} >> if there is |
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C<< <headline> >> tag. |
Clean data structure hash for next record |
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_clean_ds(); |
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=cut |
=cut |
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sub data_structure { |
sub _clean_ds { |
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my $self = shift; |
my $a = {@_}; |
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$out = undef; |
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WebPAC::Normalize::MARC::_clean(); |
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} |
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my $log = $self->_get_logger(); |
=head2 _set_lookup |
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my $rec = shift; |
Set current lookup hash |
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$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
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my $cache_file; |
_set_lookup( $lookup ); |
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if (my $cache_path = $self->{'cache_data_structure'}) { |
=cut |
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my $id = $rec->{'000'}; |
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$id = $rec->{'000'}->[0] if ($id =~ m/^ARRAY/o); |
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unless (defined($id)) { |
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$log->warn("Can't use cache_data_structure on records without unique identifier in field 000"); |
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undef $self->{'cache_data_structure'}; |
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} else { |
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$cache_file = "$cache_path/$id"; |
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if (-r $cache_file) { |
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my $ds_ref = retrieve($cache_file); |
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if ($ds_ref) { |
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$log->debug("cache hit: $cache_file"); |
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my $ok = 1; |
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foreach my $f (qw(current_filename headline)) { |
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if ($ds_ref->{$f}) { |
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$self->{$f} = $ds_ref->{$f}; |
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} else { |
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$ok = 0; |
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} |
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}; |
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if ($ok && $ds_ref->{'ds'}) { |
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return @{ $ds_ref->{'ds'} }; |
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} else { |
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$log->warn("cache_data_structure $cache_path corrupt. Use rm $cache_path/* to re-create it on next run!"); |
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undef $self->{'cache_data_structure'}; |
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} |
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} |
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} |
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} |
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} |
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undef $self->{'currnet_filename'}; |
my $lookup; |
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undef $self->{'headline'}; |
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my @sorted_tags; |
sub _set_lookup { |
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if ($self->{tags_by_order}) { |
$lookup = shift; |
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@sorted_tags = @{$self->{tags_by_order}}; |
} |
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} else { |
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@sorted_tags = sort { $self->_sort_by_order } keys %{$self->{'import_xml'}->{'indexer'}}; |
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$self->{tags_by_order} = \@sorted_tags; |
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} |
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my @ds; |
=head2 _get_lookup |
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$log->debug("tags: ",sub { join(", ",@sorted_tags) }); |
Get current lookup hash |
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foreach my $field (@sorted_tags) { |
my $lookup = _get_lookup(); |
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my $row; |
=cut |
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#print "field $field [",$self->{'tag'},"] = ",Dumper($self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}); |
sub _get_lookup { |
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return $lookup; |
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} |
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foreach my $tag (@{$self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}}) { |
=head2 _set_load_row |
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my $format = $tag->{'value'} || $tag->{'content'}; |
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$log->debug("format: $format"); |
Setup code reference which will return L<data_structure> from |
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L<WebPAC::Store> |
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my @v; |
_set_load_row(sub { |
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if ($self->{'lookup_regex'} && $format =~ $self->{'lookup_regex'}) { |
my ($database,$input,$mfn) = @_; |
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@v = $self->fill_in_to_arr($rec,$format); |
$store->load_row( database => $database, input => $input, id => $mfn ); |
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} else { |
}); |
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@v = $self->parse_to_arr($rec,$format); |
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} |
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next if (! @v); |
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if ($tag->{'sort'}) { |
=cut |
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@v = $self->sort_arr(@v); |
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} |
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# use format? |
sub _set_load_row { |
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if ($tag->{'format_name'}) { |
my $coderef = shift; |
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@v = map { $self->apply_format($tag->{'format_name'},$tag->{'format_delimiter'},$_) } @v; |
confess "argument isn't CODE" unless ref($coderef) eq 'CODE'; |
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} |
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if ($field eq 'filename') { |
$load_row_coderef = $coderef; |
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$self->{'current_filename'} = join('',@v); |
} |
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$log->debug("filename: ",$self->{'current_filename'}); |
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} elsif ($field eq 'headline') { |
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$self->{'headline'} .= join('',@v); |
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$log->debug("headline: ",$self->{'headline'}); |
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next; # don't return headline in data_structure! |
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} |
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# delimiter will join repeatable fields |
=head2 _debug |
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if ($tag->{'delimiter'}) { |
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@v = ( join($tag->{'delimiter'}, @v) ); |
Change level of debug warnings |
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} |
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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 = $l; |
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$WebPAC::Normalize::MARC::debug = $debug; |
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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 to |
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Generic way to set values for some name |
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to('field-name', 'name-value' => rec('200','a') ); |
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There are many helpers defined below which might be easier to use. |
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=cut |
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sub to { |
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my $type = shift or confess "need type -- BUG?"; |
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my $name = shift or confess "needs name as first argument"; |
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my @o = grep { defined($_) && $_ ne '' } @_; |
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return unless (@o); |
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$out->{$name}->{$type} = \@o; |
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} |
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=head2 search_display |
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Define output for L<search> and L<display> at the same time |
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search_display('Title', rec('200','a') ); |
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=cut |
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sub search_display { |
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my $name = shift or die "search_display needs name as first argument"; |
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my @o = grep { defined($_) && $_ ne '' } @_; |
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return unless (@o); |
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$out->{$name}->{search} = \@o; |
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$out->{$name}->{display} = \@o; |
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} |
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=head2 tag |
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Old name for L<search_display>, it will probably be removed at one point. |
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=cut |
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sub tag { |
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search_display( @_ ); |
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} |
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=head2 display |
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Define output 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 { to( 'display', @_ ) } |
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=head2 search |
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Prepare values just for I<search> |
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@v = search('Title', rec('200','a') ); |
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=cut |
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sub search { to( 'search', @_ ) } |
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=head2 sorted |
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Insert into lists which will be automatically sorted |
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sorted('Title', rec('200','a') ); |
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=cut |
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sub sorted { to( 'sorted', @_ ) } |
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=head1 Functions to extract data from input |
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This function should be used inside functions to create C<data_structure> described |
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above. |
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=head2 _pack_subfields_hash |
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@subfields = _pack_subfields_hash( $h ); |
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$subfields = _pack_subfields_hash( $h, 1 ); |
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Return each subfield value in array or pack them all together and return scalar |
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with subfields (denoted by C<^>) and values. |
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=cut |
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sub _pack_subfields_hash { |
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# default types |
warn "## _pack_subfields_hash( ",dump(@_), " )\n" if ($debug > 1); |
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my @types = qw(display swish); |
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# override by type attribute |
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@types = ( $tag->{'type'} ) if ($tag->{'type'}); |
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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}}; |
|
|
$d = "" if (! $last); |
|
|
$last .= $d . join($d, @v); |
|
|
push @{$row->{$type}}, $last; |
|
| 368 |
|
|
| 369 |
|
my ($hash,$include_subfields) = @_; |
| 370 |
|
|
| 371 |
|
# sanity and ease of use |
| 372 |
|
return $hash if (ref($hash) ne 'HASH'); |
| 373 |
|
|
| 374 |
|
my $h = dclone( $hash ); |
| 375 |
|
|
| 376 |
|
if ( defined($h->{subfields}) ) { |
| 377 |
|
my $sfs = delete $h->{subfields} || die "no subfields?"; |
| 378 |
|
my @out; |
| 379 |
|
while (@$sfs) { |
| 380 |
|
my $sf = shift @$sfs; |
| 381 |
|
push @out, '^' . $sf if ($include_subfields); |
| 382 |
|
my $o = shift @$sfs; |
| 383 |
|
if ($o == 0 && ref( $h->{$sf} ) ne 'ARRAY' ) { |
| 384 |
|
# single element subfields are not arrays |
| 385 |
|
#warn "====> $sf $o / $#$sfs ", dump( $sfs, $h->{$sf} ), "\n"; |
| 386 |
|
|
| 387 |
|
push @out, $h->{$sf}; |
| 388 |
|
} else { |
| 389 |
|
#warn "====> $sf $o / $#$sfs ", dump( $sfs, $h->{$sf} ), "\n"; |
| 390 |
|
push @out, $h->{$sf}->[$o]; |
| 391 |
|
} |
| 392 |
|
} |
| 393 |
|
if ($include_subfields) { |
| 394 |
|
return join('', @out); |
| 395 |
|
} else { |
| 396 |
|
return @out; |
| 397 |
|
} |
| 398 |
|
} else { |
| 399 |
|
if ($include_subfields) { |
| 400 |
|
my $out = ''; |
| 401 |
|
foreach my $sf (sort keys %$h) { |
| 402 |
|
if (ref($h->{$sf}) eq 'ARRAY') { |
| 403 |
|
$out .= '^' . $sf . join('^' . $sf, @{ $h->{$sf} }); |
| 404 |
} else { |
} else { |
| 405 |
push @{$row->{$type}}, @v; |
$out .= '^' . $sf . $h->{$sf}; |
| 406 |
} |
} |
| 407 |
} |
} |
| 408 |
|
return $out; |
| 409 |
|
} else { |
| 410 |
|
# FIXME this should probably be in alphabetical order instead of hash order |
| 411 |
|
values %{$h}; |
| 412 |
|
} |
| 413 |
|
} |
| 414 |
|
} |
| 415 |
|
|
| 416 |
|
=head2 rec1 |
| 417 |
|
|
| 418 |
} |
Return all values in some field |
| 419 |
|
|
| 420 |
if ($row) { |
@v = rec1('200') |
|
$row->{'tag'} = $field; |
|
| 421 |
|
|
| 422 |
# TODO: name_sigular, name_plural |
TODO: order of values is probably same as in source data, need to investigate that |
| 423 |
my $name = $self->{'import_xml'}->{'indexer'}->{$field}->{'name'}; |
|
| 424 |
$row->{'name'} = $name ? $self->_x($name) : $field; |
=cut |
| 425 |
|
|
| 426 |
# post-sort all values in field |
sub rec1 { |
| 427 |
if ($self->{'import_xml'}->{'indexer'}->{$field}->{'sort'}) { |
my $f = shift; |
| 428 |
$log->warn("sort at field tag not implemented"); |
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
| 429 |
|
return unless (defined($rec) && defined($rec->{$f})); |
| 430 |
|
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
| 431 |
|
if (ref($rec->{$f}) eq 'ARRAY') { |
| 432 |
|
my @out; |
| 433 |
|
foreach my $h ( @{ $rec->{$f} } ) { |
| 434 |
|
if (ref($h) eq 'HASH') { |
| 435 |
|
push @out, ( _pack_subfields_hash( $h ) ); |
| 436 |
|
} else { |
| 437 |
|
push @out, $h; |
| 438 |
} |
} |
| 439 |
|
} |
| 440 |
|
return @out; |
| 441 |
|
} elsif( defined($rec->{$f}) ) { |
| 442 |
|
return $rec->{$f}; |
| 443 |
|
} |
| 444 |
|
} |
| 445 |
|
|
| 446 |
push @ds, $row; |
=head2 rec2 |
| 447 |
|
|
| 448 |
$log->debug("row $field: ",sub { Dumper($row) }); |
Return all values in specific field and subfield |
| 449 |
|
|
| 450 |
|
@v = rec2('200','a') |
| 451 |
|
|
| 452 |
|
=cut |
| 453 |
|
|
| 454 |
|
sub rec2 { |
| 455 |
|
my $f = shift; |
| 456 |
|
return unless (defined($rec && $rec->{$f})); |
| 457 |
|
my $sf = shift; |
| 458 |
|
warn "rec2($f,$sf) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
| 459 |
|
return map { |
| 460 |
|
if (ref($_->{$sf}) eq 'ARRAY') { |
| 461 |
|
@{ $_->{$sf} }; |
| 462 |
|
} else { |
| 463 |
|
$_->{$sf}; |
| 464 |
} |
} |
| 465 |
|
} grep { ref($_) eq 'HASH' && defined $_->{$sf} } @{ $rec->{$f} }; |
| 466 |
|
} |
| 467 |
|
|
| 468 |
} |
=head2 rec |
| 469 |
|
|
| 470 |
if ($cache_file) { |
syntaxtic sugar for |
| 471 |
store { |
|
| 472 |
ds => \@ds, |
@v = rec('200') |
| 473 |
current_filename => $self->{'current_filename'}, |
@v = rec('200','a') |
| 474 |
headline => $self->{'headline'}, |
|
| 475 |
}, $cache_file; |
If rec() returns just single value, it will |
| 476 |
$log->debug("created storable cache file $cache_file"); |
return scalar, not array. |
| 477 |
|
|
| 478 |
|
=cut |
| 479 |
|
|
| 480 |
|
sub rec { |
| 481 |
|
my @out; |
| 482 |
|
if ($#_ == 0) { |
| 483 |
|
@out = rec1(@_); |
| 484 |
|
} elsif ($#_ == 1) { |
| 485 |
|
@out = rec2(@_); |
| 486 |
|
} |
| 487 |
|
if ($#out == 0 && ! wantarray) { |
| 488 |
|
return $out[0]; |
| 489 |
|
} elsif (@out) { |
| 490 |
|
return @out; |
| 491 |
|
} else { |
| 492 |
|
return ''; |
| 493 |
} |
} |
| 494 |
|
} |
| 495 |
|
|
| 496 |
return @ds; |
=head2 frec |
| 497 |
|
|
| 498 |
|
Returns first value from field |
| 499 |
|
|
| 500 |
|
$v = frec('200'); |
| 501 |
|
$v = frec('200','a'); |
| 502 |
|
|
| 503 |
|
=cut |
| 504 |
|
|
| 505 |
|
sub frec { |
| 506 |
|
my @out = rec(@_); |
| 507 |
|
warn "rec(",dump(@_),") has more than one return value, ignoring\n" if $#out > 0; |
| 508 |
|
return shift @out; |
| 509 |
} |
} |
| 510 |
|
|
| 511 |
=head2 apply_format |
=head2 frec_eq |
| 512 |
|
|
| 513 |
|
=head2 frec_ne |
| 514 |
|
|
| 515 |
|
Check if first values from two fields are same or different |
| 516 |
|
|
| 517 |
|
if ( frec_eq( 900 => 'a', 910 => 'c' ) ) { |
| 518 |
|
# values are same |
| 519 |
|
} else { |
| 520 |
|
# values are different |
| 521 |
|
} |
| 522 |
|
|
| 523 |
Apply format specified in tag with C<format_name="name"> and |
Strictly speaking C<frec_eq> and C<frec_ne> wouldn't be needed if you |
| 524 |
C<format_delimiter=";;">. |
could write something like: |
| 525 |
|
|
| 526 |
my $text = $webpac->apply_format($format_name,$format_delimiter,$data); |
if ( frec( '900','a' ) eq frec( '910','c' ) ) { |
| 527 |
|
# yada tada |
| 528 |
|
} |
| 529 |
|
|
| 530 |
Formats can contain C<lookup{...}> if you need them. |
but you can't since our parser L<WebPAC::Parser> will remove all whitespaces |
| 531 |
|
in order to parse text and create invalid function C<eqfrec>. |
| 532 |
|
|
| 533 |
=cut |
=cut |
| 534 |
|
|
| 535 |
sub apply_format { |
sub frec_eq { |
| 536 |
my $self = shift; |
my ( $f1,$sf1, $f2, $sf2 ) = @_; |
| 537 |
|
return (rec( $f1, $sf1 ))[0] eq (rec( $f2, $sf2 ))[0]; |
| 538 |
|
} |
| 539 |
|
|
| 540 |
|
sub frec_ne { |
| 541 |
|
return ! frec_eq( @_ ); |
| 542 |
|
} |
| 543 |
|
|
| 544 |
|
=head2 regex |
| 545 |
|
|
| 546 |
my ($name,$delimiter,$data) = @_; |
Apply regex to some or all values |
| 547 |
|
|
| 548 |
my $log = $self->_get_logger(); |
@v = regex( 's/foo/bar/g', @v ); |
| 549 |
|
|
| 550 |
if (! $self->{'import_xml'}->{'format'}->{$name}) { |
=cut |
| 551 |
$log->warn("<format name=\"$name\"> is not defined in ",$self->{'import_xml_file'}); |
|
| 552 |
return $data; |
sub regex { |
| 553 |
|
my $r = shift; |
| 554 |
|
my @out; |
| 555 |
|
#warn "r: $r\n", dump(\@_); |
| 556 |
|
foreach my $t (@_) { |
| 557 |
|
next unless ($t); |
| 558 |
|
eval "\$t =~ $r"; |
| 559 |
|
push @out, $t if ($t && $t ne ''); |
| 560 |
} |
} |
| 561 |
|
return @out; |
| 562 |
|
} |
| 563 |
|
|
| 564 |
$log->warn("no delimiter for format $name") if (! $delimiter); |
=head2 prefix |
| 565 |
|
|
| 566 |
my $format = $self->_x($self->{'import_xml'}->{'format'}->{$name}->{'content'}) || $log->logdie("can't find format '$name'"); |
Prefix all values with a string |
| 567 |
|
|
| 568 |
my @data = split(/\Q$delimiter\E/, $data); |
@v = prefix( 'my_', @v ); |
| 569 |
|
|
| 570 |
my $out = sprintf($format, @data); |
=cut |
|
$log->debug("using format $name [$format] on $data to produce: $out"); |
|
| 571 |
|
|
| 572 |
if ($self->{'lookup_regex'} && $out =~ $self->{'lookup_regex'}) { |
sub prefix { |
| 573 |
return $self->lookup($out); |
my $p = shift; |
| 574 |
} else { |
return @_ unless defined( $p ); |
| 575 |
return $out; |
return map { $p . $_ } grep { defined($_) } @_; |
| 576 |
} |
} |
| 577 |
|
|
| 578 |
|
=head2 suffix |
| 579 |
|
|
| 580 |
|
suffix all values with a string |
| 581 |
|
|
| 582 |
|
@v = suffix( '_my', @v ); |
| 583 |
|
|
| 584 |
|
=cut |
| 585 |
|
|
| 586 |
|
sub suffix { |
| 587 |
|
my $s = shift; |
| 588 |
|
return @_ unless defined( $s ); |
| 589 |
|
return map { $_ . $s } grep { defined($_) } @_; |
| 590 |
} |
} |
| 591 |
|
|
| 592 |
=head2 parse |
=head2 surround |
| 593 |
|
|
| 594 |
Perform smart parsing of string, skipping delimiters for fields which aren't |
surround all values with a two strings |
|
defined. It can also eval code in format starting with C<eval{...}> and |
|
|
return output or nothing depending on eval code. |
|
| 595 |
|
|
| 596 |
my $text = $webpac->parse($rec,'eval{"v901^a" eq "Deskriptor"}descriptor: v250^a', $i); |
@v = surround( 'prefix_', '_suffix', @v ); |
| 597 |
|
|
| 598 |
=cut |
=cut |
| 599 |
|
|
| 600 |
sub parse { |
sub surround { |
| 601 |
my $self = shift; |
my $p = shift; |
| 602 |
|
my $s = shift; |
| 603 |
|
$p = '' unless defined( $p ); |
| 604 |
|
$s = '' unless defined( $s ); |
| 605 |
|
return map { $p . $_ . $s } grep { defined($_) } @_; |
| 606 |
|
} |
| 607 |
|
|
| 608 |
my ($rec, $format_utf8, $i) = @_; |
=head2 first |
| 609 |
|
|
| 610 |
return if (! $format_utf8); |
Return first element |
| 611 |
|
|
| 612 |
my $log = $self->_get_logger(); |
$v = first( @v ); |
| 613 |
|
|
| 614 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
=cut |
| 615 |
|
|
| 616 |
$i = 0 if (! $i); |
sub first { |
| 617 |
|
my $r = shift; |
| 618 |
|
return $r; |
| 619 |
|
} |
| 620 |
|
|
| 621 |
my $format = $self->_x($format_utf8) || $log->logconfess("can't convert '$format_utf8' from UTF-8 to ",$self->{'code_page'}); |
=head2 lookup |
| 622 |
|
|
| 623 |
my @out; |
Consult lookup hashes for some value |
| 624 |
|
|
| 625 |
$log->debug("format: $format"); |
@v = lookup( |
| 626 |
|
sub { |
| 627 |
|
'ffkk/peri/mfn'.rec('000') |
| 628 |
|
}, |
| 629 |
|
'ffkk','peri','200-a-200-e', |
| 630 |
|
sub { |
| 631 |
|
first(rec(200,'a')).' '.first(rec('200','e')) |
| 632 |
|
} |
| 633 |
|
); |
| 634 |
|
|
| 635 |
|
Code like above will be B<automatically generated> using L<WebPAC::Parse> from |
| 636 |
|
normal lookup definition in C<conf/lookup/something.pl> which looks like: |
| 637 |
|
|
| 638 |
|
lookup( |
| 639 |
|
# which results to return from record recorded in lookup |
| 640 |
|
sub { 'ffkk/peri/mfn' . rec('000') }, |
| 641 |
|
# from which database and input |
| 642 |
|
'ffkk','peri', |
| 643 |
|
# such that following values match |
| 644 |
|
sub { first(rec(200,'a')) . ' ' . first(rec('200','e')) }, |
| 645 |
|
# if this part is missing, we will try to match same fields |
| 646 |
|
# from lookup record and current one, or you can override |
| 647 |
|
# which records to use from current record using |
| 648 |
|
sub { rec('900','x') . ' ' . rec('900','y') }, |
| 649 |
|
) |
| 650 |
|
|
| 651 |
|
You can think about this lookup as SQL (if that helps): |
| 652 |
|
|
| 653 |
my $eval_code; |
select |
| 654 |
# remove eval{...} from beginning |
sub { what } |
| 655 |
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
from |
| 656 |
|
database, input |
| 657 |
|
where |
| 658 |
|
sub { filter from lookuped record } |
| 659 |
|
having |
| 660 |
|
sub { optional filter on current record } |
| 661 |
|
|
| 662 |
|
Easy as pie, right? |
| 663 |
|
|
| 664 |
|
=cut |
| 665 |
|
|
| 666 |
my $filter_name; |
sub lookup { |
| 667 |
# remove filter{...} from beginning |
my ($what, $database, $input, $key, $having) = @_; |
|
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
|
| 668 |
|
|
| 669 |
my $prefix; |
confess "lookup needs 5 arguments: what, database, input, key, having\n" unless ($#_ == 4); |
|
my $all_found=0; |
|
| 670 |
|
|
| 671 |
while ($format =~ s/^(.*?)(v|s)(\d+)(?:\^(\w))?//s) { |
warn "## lookup ($database, $input, $key)", $/ if ($debug > 1); |
| 672 |
|
return unless (defined($lookup->{$database}->{$input}->{$key})); |
| 673 |
|
|
| 674 |
my $del = $1 || ''; |
confess "lookup really need load_row_coderef added to data_structure\n" unless ($load_row_coderef); |
|
$prefix ||= $del if ($all_found == 0); |
|
| 675 |
|
|
| 676 |
# repeatable index |
my $mfns; |
| 677 |
my $r = $i; |
my @having = $having->(); |
|
$r = 0 if (lc("$2") eq 's'); |
|
| 678 |
|
|
| 679 |
my $found = 0; |
warn "## having = ", dump( @having ) if ($debug > 2); |
|
my $tmp = $self->get_data(\$rec,$3,$4,$r,\$found); |
|
| 680 |
|
|
| 681 |
if ($found) { |
foreach my $h ( @having ) { |
| 682 |
push @out, $del; |
if (defined($lookup->{$database}->{$input}->{$key}->{$h})) { |
| 683 |
push @out, $tmp; |
warn "lookup for $database/$input/$key/$h return ",dump($lookup->{$database}->{$input}->{$key}->{$h}),"\n" if ($debug); |
| 684 |
$all_found += $found; |
$mfns->{$_}++ foreach keys %{ $lookup->{$database}->{$input}->{$key}->{$h} }; |
| 685 |
} |
} |
| 686 |
} |
} |
| 687 |
|
|
| 688 |
return if (! $all_found); |
return unless ($mfns); |
| 689 |
|
|
| 690 |
my $out = join('',@out); |
my @mfns = sort keys %$mfns; |
| 691 |
|
|
| 692 |
if ($out) { |
warn "# lookup loading $database/$input/$key mfn ", join(",",@mfns)," having ",dump(@having),"\n" if ($debug); |
|
# add rest of format (suffix) |
|
|
$out .= $format; |
|
| 693 |
|
|
| 694 |
# add prefix if not there |
my $old_rec = $rec; |
| 695 |
$out = $prefix . $out if ($out !~ m/^\Q$prefix\E/); |
my @out; |
| 696 |
|
|
| 697 |
$log->debug("result: $out"); |
foreach my $mfn (@mfns) { |
| 698 |
} |
$rec = $load_row_coderef->( $database, $input, $mfn ); |
| 699 |
|
|
| 700 |
if ($eval_code) { |
warn "got $database/$input/$mfn = ", dump($rec), $/ if ($debug); |
| 701 |
my $eval = $self->fill_in($rec,$eval_code,$i) || return; |
|
| 702 |
$log->debug("about to eval{$eval} format: $out"); |
my @vals = $what->(); |
| 703 |
return if (! $self->_eval($eval)); |
|
| 704 |
} |
push @out, ( @vals ); |
| 705 |
|
|
| 706 |
if ($filter_name && $self->{'filter'}->{$filter_name}) { |
warn "lookup for mfn $mfn returned ", dump(@vals), $/ if ($debug); |
|
$log->debug("about to filter{$filter_name} format: $out"); |
|
|
$out = $self->{'filter'}->{$filter_name}->($out); |
|
|
return unless(defined($out)); |
|
|
$log->debug("filter result: $out"); |
|
| 707 |
} |
} |
| 708 |
|
|
| 709 |
return $out; |
# if (ref($lookup->{$k}) eq 'ARRAY') { |
| 710 |
|
# return @{ $lookup->{$k} }; |
| 711 |
|
# } else { |
| 712 |
|
# return $lookup->{$k}; |
| 713 |
|
# } |
| 714 |
|
|
| 715 |
|
$rec = $old_rec; |
| 716 |
|
|
| 717 |
|
warn "## lookup returns = ", dump(@out), $/ if ($debug); |
| 718 |
|
|
| 719 |
|
if ($#out == 0) { |
| 720 |
|
return $out[0]; |
| 721 |
|
} else { |
| 722 |
|
return @out; |
| 723 |
|
} |
| 724 |
} |
} |
| 725 |
|
|
| 726 |
=head2 parse_to_arr |
=head2 save_into_lookup |
| 727 |
|
|
| 728 |
Similar to C<parse>, but returns array of all repeatable fields |
Save value into lookup. It associates current database, input |
| 729 |
|
and specific keys with one or more values which will be |
| 730 |
|
associated over MFN. |
| 731 |
|
|
| 732 |
my @arr = $webpac->parse_to_arr($rec,'v250^a'); |
MFN will be extracted from first occurence current of field 000 |
| 733 |
|
in current record, or if it doesn't exist from L<_set_config> C<_mfn>. |
| 734 |
|
|
| 735 |
=cut |
my $nr = save_into_lookup($database,$input,$key,sub { |
| 736 |
|
# code which produce one or more values |
| 737 |
|
}); |
| 738 |
|
|
| 739 |
|
It returns number of items saved. |
| 740 |
|
|
| 741 |
sub parse_to_arr { |
This function shouldn't be called directly, it's called from code created by |
| 742 |
my $self = shift; |
L<WebPAC::Parser>. |
| 743 |
|
|
| 744 |
my ($rec, $format_utf8) = @_; |
=cut |
| 745 |
|
|
| 746 |
my $log = $self->_get_logger(); |
sub save_into_lookup { |
| 747 |
|
my ($database,$input,$key,$coderef) = @_; |
| 748 |
|
die "save_into_lookup needs database" unless defined($database); |
| 749 |
|
die "save_into_lookup needs input" unless defined($input); |
| 750 |
|
die "save_into_lookup needs key" unless defined($key); |
| 751 |
|
die "save_into_lookup needs CODE" unless ( defined($coderef) && ref($coderef) eq 'CODE' ); |
| 752 |
|
|
| 753 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
warn "## save_into_lookup rec = ", dump($rec), " config = ", dump($config), $/ if ($debug > 2); |
|
return if (! $format_utf8); |
|
| 754 |
|
|
| 755 |
my $i = 0; |
my $mfn = |
| 756 |
my @arr; |
defined($rec->{'000'}->[0]) ? $rec->{'000'}->[0] : |
| 757 |
|
defined($config->{_mfn}) ? $config->{_mfn} : |
| 758 |
|
die "mfn not defined or zero"; |
| 759 |
|
|
| 760 |
while (my $v = $self->parse($rec,$format_utf8,$i++)) { |
my $nr = 0; |
|
push @arr, $v; |
|
|
} |
|
| 761 |
|
|
| 762 |
$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
foreach my $v ( $coderef->() ) { |
| 763 |
|
$lookup->{$database}->{$input}->{$key}->{$v}->{$mfn}++; |
| 764 |
|
warn "# saved lookup $database/$input/$key [$v] $mfn\n" if ($debug > 1); |
| 765 |
|
$nr++; |
| 766 |
|
} |
| 767 |
|
|
| 768 |
return @arr; |
return $nr; |
| 769 |
} |
} |
| 770 |
|
|
| 771 |
=head2 fill_in_to_arr |
=head2 config |
| 772 |
|
|
| 773 |
|
Consult config values stored in C<config.yml> |
| 774 |
|
|
| 775 |
Similar to C<fill_in>, but returns array of all repeatable fields. Usable |
# return database code (key under databases in yaml) |
| 776 |
for fields which have lookups, so they shouldn't be parsed but rather |
$database_code = config(); # use _ from hash |
| 777 |
C<fill_id>ed. |
$database_name = config('name'); |
| 778 |
|
$database_input_name = config('input name'); |
| 779 |
|
|
| 780 |
my @arr = $webpac->fill_in_to_arr($rec,'[v900];;[v250^a]'); |
Up to three levels are supported. |
| 781 |
|
|
| 782 |
=cut |
=cut |
| 783 |
|
|
| 784 |
sub fill_in_to_arr { |
sub config { |
| 785 |
my $self = shift; |
return unless ($config); |
| 786 |
|
|
| 787 |
my ($rec, $format_utf8) = @_; |
my $p = shift; |
| 788 |
|
|
| 789 |
my $log = $self->_get_logger(); |
$p ||= ''; |
| 790 |
|
|
| 791 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
my $v; |
|
return if (! $format_utf8); |
|
| 792 |
|
|
| 793 |
my $i = 0; |
warn "### getting config($p)\n" if ($debug > 1); |
| 794 |
my @arr; |
|
| 795 |
|
my @p = split(/\s+/,$p); |
| 796 |
|
if ($#p < 0) { |
| 797 |
|
$v = $config->{ '_' }; # special, database code |
| 798 |
|
} else { |
| 799 |
|
|
| 800 |
|
my $c = dclone( $config ); |
| 801 |
|
|
| 802 |
|
foreach my $k (@p) { |
| 803 |
|
warn "### k: $k c = ",dump($c),$/ if ($debug > 1); |
| 804 |
|
if (ref($c) eq 'ARRAY') { |
| 805 |
|
$c = shift @$c; |
| 806 |
|
warn "config($p) taking first occurence of '$k', probably not what you wanted!\n"; |
| 807 |
|
last; |
| 808 |
|
} |
| 809 |
|
|
| 810 |
|
if (! defined($c->{$k}) ) { |
| 811 |
|
$c = undef; |
| 812 |
|
last; |
| 813 |
|
} else { |
| 814 |
|
$c = $c->{$k}; |
| 815 |
|
} |
| 816 |
|
} |
| 817 |
|
$v = $c if ($c); |
| 818 |
|
|
|
while (my @v = $self->fill_in($rec,$format_utf8,$i++)) { |
|
|
push @arr, @v; |
|
| 819 |
} |
} |
| 820 |
|
|
| 821 |
$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
warn "## config( '$p' ) = ",dump( $v ),$/ if ($v && $debug); |
| 822 |
|
warn "config( '$p' ) is empty\n" if (! $v); |
| 823 |
|
|
| 824 |
return @arr; |
return $v; |
| 825 |
} |
} |
| 826 |
|
|
| 827 |
=head2 sort_arr |
=head2 id |
| 828 |
|
|
| 829 |
|
Returns unique id of this record |
| 830 |
|
|
| 831 |
Sort array ignoring case and html in data |
$id = id(); |
| 832 |
|
|
| 833 |
my @sorted = $webpac->sort_arr(@unsorted); |
Returns C<42/2> for 2nd occurence of MFN 42. |
| 834 |
|
|
| 835 |
=cut |
=cut |
| 836 |
|
|
| 837 |
sub sort_arr { |
sub id { |
| 838 |
my $self = shift; |
my $mfn = $config->{_mfn} || die "no _mfn in config data"; |
| 839 |
|
return $mfn . ( WebPAC::Normalize::MARC::_created_marc_records() || '' ); |
| 840 |
|
} |
| 841 |
|
|
| 842 |
my $log = $self->_get_logger(); |
=head2 join_with |
| 843 |
|
|
| 844 |
# FIXME add Schwartzian Transformation? |
Joins walues with some delimiter |
| 845 |
|
|
| 846 |
my @sorted = sort { |
$v = join_with(", ", @v); |
|
$a =~ s#<[^>]+/*>##; |
|
|
$b =~ s#<[^>]+/*>##; |
|
|
lc($b) cmp lc($a) |
|
|
} @_; |
|
|
$log->debug("sorted values: ",sub { join(", ",@sorted) }); |
|
| 847 |
|
|
| 848 |
return @sorted; |
=cut |
| 849 |
|
|
| 850 |
|
sub join_with { |
| 851 |
|
my $d = shift; |
| 852 |
|
warn "### join_with('$d',",dump(@_),")\n" if ($debug > 2); |
| 853 |
|
my $v = join($d, grep { defined($_) && $_ ne '' } @_); |
| 854 |
|
return '' unless defined($v); |
| 855 |
|
return $v; |
| 856 |
} |
} |
| 857 |
|
|
| 858 |
|
=head2 split_rec_on |
| 859 |
|
|
| 860 |
|
Split record subfield on some regex and take one of parts out |
| 861 |
|
|
| 862 |
|
$a_before_semi_column = |
| 863 |
|
split_rec_on('200','a', /\s*;\s*/, $part); |
| 864 |
|
|
| 865 |
=head2 _sort_by_order |
C<$part> is optional number of element. First element is |
| 866 |
|
B<1>, not 0! |
| 867 |
|
|
| 868 |
Sort xml tags data structure accoding to C<order=""> attribute. |
If there is no C<$part> parameter or C<$part> is 0, this function will |
| 869 |
|
return all values produced by splitting. |
| 870 |
|
|
| 871 |
=cut |
=cut |
| 872 |
|
|
| 873 |
sub _sort_by_order { |
sub split_rec_on { |
| 874 |
my $self = shift; |
die "split_rec_on need (fld,sf,regex[,part]" if ($#_ < 2); |
| 875 |
|
|
| 876 |
my $va = $self->{'import_xml'}->{'indexer'}->{$a}->{'order'} || |
my ($fld, $sf, $regex, $part) = @_; |
| 877 |
$self->{'import_xml'}->{'indexer'}->{$a}; |
warn "### regex ", ref($regex), $regex, $/ if ($debug > 2); |
|
my $vb = $self->{'import_xml'}->{'indexer'}->{$b}->{'order'} || |
|
|
$self->{'import_xml'}->{'indexer'}->{$b}; |
|
| 878 |
|
|
| 879 |
return $va <=> $vb; |
my @r = rec( $fld, $sf ); |
| 880 |
} |
my $v = shift @r; |
| 881 |
|
warn "### first rec($fld,$sf) = ",dump($v),$/ if ($debug > 2); |
| 882 |
|
|
| 883 |
|
return '' if ( ! defined($v) || $v =~ /^\s*$/); |
| 884 |
|
|
| 885 |
=head2 _x |
my @s = split( $regex, $v ); |
| 886 |
|
warn "## split_rec_on($fld,$sf,$regex,$part) = ",dump(@s),$/ if ($debug > 1); |
| 887 |
|
if ($part && $part > 0) { |
| 888 |
|
return $s[ $part - 1 ]; |
| 889 |
|
} else { |
| 890 |
|
return @s; |
| 891 |
|
} |
| 892 |
|
} |
| 893 |
|
|
| 894 |
Convert strings from C<conf/normalize> encoding into application specific |
my $hash; |
|
(optinally specified using C<code_page> to C<new> constructor. |
|
| 895 |
|
|
| 896 |
my $text = $n->_x('normalize text string'); |
=head2 set |
| 897 |
|
|
| 898 |
This is a stub so that other modules doesn't have to implement it. |
set( key => 'value' ); |
| 899 |
|
|
| 900 |
=cut |
=cut |
| 901 |
|
|
| 902 |
sub _x { |
sub set { |
| 903 |
my $self = shift; |
my ($k,$v) = @_; |
| 904 |
return shift; |
warn "## set ( $k => ", dump($v), " )", $/ if ( $debug ); |
| 905 |
} |
$hash->{$k} = $v; |
| 906 |
|
}; |
| 907 |
|
|
| 908 |
|
=head2 get |
| 909 |
|
|
| 910 |
=head1 AUTHOR |
get( 'key' ); |
| 911 |
|
|
| 912 |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
=cut |
| 913 |
|
|
| 914 |
=head1 COPYRIGHT & LICENSE |
sub get { |
| 915 |
|
my $k = shift || return; |
| 916 |
|
my $v = $hash->{$k}; |
| 917 |
|
warn "## get $k = ", dump( $v ), $/ if ( $debug ); |
| 918 |
|
return $v; |
| 919 |
|
} |
| 920 |
|
|
| 921 |
Copyright 2005 Dobrica Pavlinusic, All Rights Reserved. |
=head2 count |
| 922 |
|
|
| 923 |
This program is free software; you can redistribute it and/or modify it |
if ( count( @result ) == 1 ) { |
| 924 |
under the same terms as Perl itself. |
# do something if only 1 result is there |
| 925 |
|
} |
| 926 |
|
|
| 927 |
=cut |
=cut |
| 928 |
|
|
| 929 |
1; # End of WebPAC::DB |
sub count { |
| 930 |
|
warn "## count ",dump(@_),$/ if ( $debug ); |
| 931 |
|
return @_ . ''; |
| 932 |
|
} |
| 933 |
|
|
| 934 |
|
# END |
| 935 |
|
1; |
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