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package WebPAC::Lookup::Normalize; |
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|
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use warnings; |
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use strict; |
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use blib; |
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use WebPAC::Common; |
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use base 'WebPAC::Common'; |
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use Data::Dumper; |
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|
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=head1 NAME |
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|
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WebPAC::Lookup::Normalize - data mungling for normalisation |
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|
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=head1 VERSION |
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|
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Version 0.09 |
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|
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=cut |
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|
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our $VERSION = '0.09'; |
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|
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=head1 SYNOPSIS |
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|
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This package contains code that mungle data to produce normalized format. |
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|
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B<WARNING:> |
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|
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This code is obsolete. It moved to here so that I don't have to re-write |
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L<WebPAC::Lookup> to use set configuration files (using L<WebPAC::Normalize>) |
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just yet. But it will dissapear real soon! |
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|
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It contains several assumptions: |
33 |
|
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=over |
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|
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=item * |
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|
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format of fields is defined using C<v123^a> notation for repeatable fields |
39 |
or C<s123^a> for single (or first) value, where C<123> is field number and |
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C<a> is subfield. |
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|
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=item * |
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|
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source data records (C<$rec>) have unique identifiers in field C<000> |
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|
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=item * |
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|
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optional C<eval{length('v123^a') == 3}> tag at B<beginning of format> will be |
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perl code that is evaluated before producing output (value of field will be |
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interpolated before that) |
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|
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=item * |
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|
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optional C<filter{filter_name}> at B<begining of format> will apply perl |
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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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|
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There is one built-in filter called C<regex> which can be use like this: |
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|
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filter{regex(s/foo/bar/)} |
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|
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=item * |
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|
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optional C<lookup{...}> will be then performed. See C<WebPAC::Lookups>. |
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|
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=item * |
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|
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at end, optional C<format>s rules are resolved. Format rules are similar to |
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C<sprintf> and can also contain C<lookup{...}> which is performed after |
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values are inserted in format. |
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|
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=back |
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|
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This also describes order in which transformations are applied (eval, |
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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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|
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|
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|
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|
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=head1 FUNCTIONS |
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|
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=head2 new |
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|
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Create new normalisation object |
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|
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my $n = new WebPAC::Lookup::Normalize::Something( |
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filter => { |
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'filter_name_1' => sub { |
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# filter code |
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return length($_); |
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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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prefix => 'foobar', |
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); |
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|
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Parametar C<filter> defines user supplied snippets of perl code which can |
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be use with C<filter{...}> notation. |
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|
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C<prefix> is used to form filename for database record (to support multiple |
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source files which are joined in one database). |
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|
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Recommended parametar C<lookup_regex> is used to enable parsing of lookups |
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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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|
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=cut |
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|
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sub new { |
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my $class = shift; |
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my $self = {@_}; |
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bless($self, $class); |
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|
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my $r = $self->{'lookup_regex'} ? 1 : 0; |
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my $l = $self->{'lookup'} ? 1 : 0; |
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|
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my $log = $self->_get_logger(); |
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|
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# those two must be in pair |
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if ( ($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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|
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$log->logdie("lookup must be WebPAC::Lookup object") if ($self->{'lookup'} && ! $self->{'lookup'}->isa('WebPAC::Lookup')); |
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|
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$log->warn("no prefix defined. please check that!") unless ($self->{'prefix'}); |
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|
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$log->debug("using lookup regex: ", $self->{lookup_regex}) if ($r && $l); |
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|
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if (! $self->{filter} || ! $self->{filter}->{regex}) { |
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$log->debug("adding built-in filter regex"); |
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$self->{filter}->{regex} = sub { |
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my ($val, $regex) = @_; |
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eval "\$val =~ $regex"; |
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return $val; |
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}; |
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} |
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|
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$self ? return $self : return undef; |
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} |
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|
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=head2 all_tags |
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|
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Returns all tags in document in specified order |
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|
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my $sorted_tags = $self->all_tags(); |
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|
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=cut |
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|
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sub all_tags { |
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my $self = shift; |
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|
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if (! $self->{_tags_by_order}) { |
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|
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my $log = $self->_get_logger; |
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# sanity check |
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$log->logdie("can't find self->{inport_xml}->{indexer}") unless ($self->{import_xml}->{indexer}); |
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|
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my @tags = keys %{ $self->{'import_xml'}->{'indexer'}}; |
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$log->debug("unsorted tags: " . join(", ", @tags)); |
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|
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@tags = sort { $self->_sort_by_order } @tags; |
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|
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$log->debug("sorted tags: " . join(",", @tags) ); |
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|
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$self->{_tags_by_order} = \@tags; |
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} |
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|
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return $self->{_tags_by_order}; |
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} |
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|
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|
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|
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=head2 data_structure |
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|
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Create in-memory data structure which represents normalized layout from |
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C<conf/normalize/*.xml>. |
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|
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This structures are used to produce output. |
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|
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my $ds = $webpac->data_structure($rec); |
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|
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=cut |
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|
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sub data_structure { |
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my $self = shift; |
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|
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my $log = $self->_get_logger(); |
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|
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my $rec = shift; |
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$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
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|
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$log->debug("data_structure rec = ", sub { Dumper($rec) }); |
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|
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$log->logdie("need unique ID (mfn) in field 000 of record " . Dumper($rec) ) unless (defined($rec->{'000'})); |
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|
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my $id = $rec->{'000'}->[0] || $log->logdie("field 000 isn't array!"); |
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|
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my $cache_file; |
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|
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if ($self->{'db'}) { |
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my $ds = $self->{'db'}->load_ds( id => $id, prefix => $self->{prefix} ); |
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$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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|
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my $tags = $self->all_tags(); |
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|
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$log->debug("tags: ",sub { join(", ",@{ $tags }) }); |
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|
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my $ds; |
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|
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foreach my $field (@{ $tags }) { |
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|
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my $row; |
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|
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#print "field $field [",$self->{'tag'},"] = ",Dumper($self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}); |
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|
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foreach my $tag (@{$self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}}) { |
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my $format; |
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|
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$log->logdie("expected tag HASH and got $tag") unless (ref($tag) eq 'HASH'); |
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$format = $tag->{'value'} || $tag->{'content'}; |
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|
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my @v; |
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if ($self->{'lookup_regex'} && $format =~ $self->{'lookup_regex'}) { |
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@v = $self->_rec_to_arr($rec,$format,'fill_in'); |
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} else { |
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@v = $self->_rec_to_arr($rec,$format,'parse'); |
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} |
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if (! @v) { |
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$log->debug("$field <",$self->{tag},"> format: $format no values"); |
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next; |
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} else { |
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$log->debug("$field <",$self->{tag},"> format: $format values: ", join(",", @v)); |
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} |
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|
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if ($tag->{'sort'}) { |
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@v = $self->sort_arr(@v); |
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} |
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|
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# use format? |
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if ($tag->{'format_name'}) { |
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@v = map { $self->apply_format($tag->{'format_name'},$tag->{'format_delimiter'},$_) } @v; |
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} |
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|
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# delimiter will join repeatable fields |
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if ($tag->{'delimiter'}) { |
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@v = ( join($tag->{'delimiter'}, @v) ); |
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} |
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|
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# default types |
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my @types = qw(display search); |
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# override by type attribute |
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@types = ( $tag->{'type'} ) if ($tag->{'type'}); |
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|
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foreach my $type (@types) { |
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# append to previous line? |
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$log->debug("tag $field / $type [",sub { join(",",@v) }, "] ", $row->{'append'} || 'no append'); |
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if ($tag->{'append'}) { |
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|
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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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|
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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}}, $last; |
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|
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} else { |
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push @{$row->{$type}}, @v; |
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} |
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} |
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|
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|
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} |
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|
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if ($row) { |
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$row->{'tag'} = $field; |
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|
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# TODO: name_sigular, name_plural |
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my $name = $self->{'import_xml'}->{'indexer'}->{$field}->{'name'}; |
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my $row_name = $name ? $self->_x($name) : $field; |
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|
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# post-sort all values in field |
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if ($self->{'import_xml'}->{'indexer'}->{$field}->{'sort'}) { |
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$log->warn("sort at field tag not implemented"); |
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} |
297 |
|
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$ds->{$row_name} = $row; |
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|
300 |
$log->debug("row $field: ",sub { Dumper($row) }); |
301 |
} |
302 |
|
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} |
304 |
|
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$self->{'db'}->save_ds( |
306 |
id => $id, |
307 |
ds => $ds, |
308 |
prefix => $self->{prefix}, |
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) if ($self->{'db'}); |
310 |
|
311 |
$log->debug("ds: ", sub { Dumper($ds) }); |
312 |
|
313 |
$log->logconfess("data structure returned is not array any more!") if wantarray; |
314 |
|
315 |
return $ds; |
316 |
|
317 |
} |
318 |
|
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=head2 parse |
320 |
|
321 |
Perform smart parsing of string, skipping delimiters for fields which aren't |
322 |
defined. It can also eval code in format starting with C<eval{...}> and |
323 |
return output or nothing depending on eval code. |
324 |
|
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my $text = $webpac->parse($rec,'eval{"v901^a" eq "Deskriptor"}descriptor: v250^a', $i); |
326 |
|
327 |
Filters are implemented here. While simple form of filters looks like this: |
328 |
|
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filter{name_of_filter} |
330 |
|
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but, filters can also have variable number of parametars like this: |
332 |
|
333 |
filter{name_of_filter(param,param,param)} |
334 |
|
335 |
=cut |
336 |
|
337 |
my $warn_once; |
338 |
|
339 |
sub parse { |
340 |
my $self = shift; |
341 |
|
342 |
my ($rec, $format_utf8, $i, $rec_size) = @_; |
343 |
|
344 |
return if (! $format_utf8); |
345 |
|
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my $log = $self->_get_logger(); |
347 |
|
348 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
349 |
|
350 |
$i = 0 if (! $i); |
351 |
|
352 |
my $format = $self->_x($format_utf8) || $log->logconfess("can't convert '$format_utf8' from UTF-8 to ",$self->{'code_page'}); |
353 |
|
354 |
my @out; |
355 |
|
356 |
$log->debug("format: $format [$i]"); |
357 |
|
358 |
my $eval_code; |
359 |
# remove eval{...} from beginning |
360 |
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
361 |
|
362 |
my $filter_name; |
363 |
# remove filter{...} from beginning |
364 |
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
365 |
|
366 |
# did we found any (att all) field from format in row? |
367 |
my $found_any; |
368 |
# prefix before first field which we preserve it $found_any |
369 |
my $prefix; |
370 |
|
371 |
my $f_step = 1; |
372 |
|
373 |
while ($format =~ s/^(.*?)(v|s)(\d+)(?:\^(\w))?//s) { |
374 |
|
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my $del = $1 || ''; |
376 |
$prefix = $del if ($f_step == 1); |
377 |
|
378 |
my $fld_type = lc($2); |
379 |
|
380 |
# repeatable index |
381 |
my $r = $i; |
382 |
if ($fld_type eq 's') { |
383 |
if ($found_any->{'v'}) { |
384 |
$r = 0; |
385 |
} else { |
386 |
return; |
387 |
} |
388 |
} |
389 |
|
390 |
my $found = 0; |
391 |
my $tmp = $self->get_data(\$rec,$3,$4,$r,\$found,$rec_size); |
392 |
|
393 |
if ($found) { |
394 |
$found_any->{$fld_type} += $found; |
395 |
|
396 |
# we will skip delimiter before first occurence of field! |
397 |
push @out, $del unless($found_any->{$fld_type} == 1); |
398 |
push @out, $tmp if ($tmp); |
399 |
} |
400 |
$f_step++; |
401 |
} |
402 |
|
403 |
# test if any fields found? |
404 |
return if (! $found_any->{'v'} && ! $found_any->{'s'}); |
405 |
|
406 |
my $out = join('',@out); |
407 |
|
408 |
if ($out) { |
409 |
# add rest of format (suffix) |
410 |
$out .= $format; |
411 |
|
412 |
# add prefix if not there |
413 |
$out = $prefix . $out if ($out !~ m/^\Q$prefix\E/); |
414 |
|
415 |
$log->debug("result: $out"); |
416 |
} |
417 |
|
418 |
if ($eval_code) { |
419 |
my $eval = $self->fill_in($rec,$eval_code,$i) || return; |
420 |
$log->debug("about to eval{$eval} format: $out"); |
421 |
return if (! $self->_eval($eval)); |
422 |
} |
423 |
|
424 |
if ($filter_name) { |
425 |
my @filter_args; |
426 |
if ($filter_name =~ s/(\w+)\((.*)\)/$1/) { |
427 |
@filter_args = split(/,/, $2); |
428 |
} |
429 |
if ($self->{'filter'}->{$filter_name}) { |
430 |
$log->debug("about to filter{$filter_name} format: $out with arguments: ", join(",", @filter_args)); |
431 |
unshift @filter_args, $out; |
432 |
$out = $self->{'filter'}->{$filter_name}->(@filter_args); |
433 |
return unless(defined($out)); |
434 |
$log->debug("filter result: $out"); |
435 |
} elsif (! $warn_once->{$filter_name}) { |
436 |
$log->warn("trying to use undefined filter $filter_name"); |
437 |
$warn_once->{$filter_name}++; |
438 |
} |
439 |
} |
440 |
|
441 |
return $out; |
442 |
} |
443 |
|
444 |
=head2 fill_in |
445 |
|
446 |
Workhourse of all: takes record from in-memory structure of database and |
447 |
strings with placeholders and returns string or array of with substituted |
448 |
values from record. |
449 |
|
450 |
my $text = $webpac->fill_in($rec,'v250^a'); |
451 |
|
452 |
Optional argument is ordinal number for repeatable fields. By default, |
453 |
it's assume to be first repeatable field (fields are perl array, so first |
454 |
element is 0). |
455 |
Following example will read second value from repeatable field. |
456 |
|
457 |
my $text = $webpac->fill_in($rec,'Title: v250^a',1); |
458 |
|
459 |
This function B<does not> perform parsing of format to inteligenty skip |
460 |
delimiters before fields which aren't used. |
461 |
|
462 |
This method will automatically decode UTF-8 string to local code page |
463 |
if needed. |
464 |
|
465 |
There is optional parametar C<$record_size> which can be used to get sizes of |
466 |
all C<field^subfield> combinations in this format. |
467 |
|
468 |
my $text = $webpac->fill_in($rec,'got: v900^a v900^x',0,\$rec_size); |
469 |
|
470 |
=cut |
471 |
|
472 |
sub fill_in { |
473 |
my $self = shift; |
474 |
|
475 |
my $log = $self->_get_logger(); |
476 |
|
477 |
my ($rec,$format,$i,$rec_size) = @_; |
478 |
|
479 |
$log->logconfess("need data record") unless ($rec); |
480 |
$log->logconfess("need format to parse") unless($format); |
481 |
|
482 |
# iteration (for repeatable fields) |
483 |
$i ||= 0; |
484 |
|
485 |
$log->logdie("infitite loop in format $format") if ($i > ($self->{'max_mfn'} || 9999)); |
486 |
|
487 |
# FIXME remove for speedup? |
488 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
489 |
|
490 |
if (utf8::is_utf8($format)) { |
491 |
$format = $self->_x($format); |
492 |
} |
493 |
|
494 |
my $found = 0; |
495 |
my $just_single = 1; |
496 |
|
497 |
my $eval_code; |
498 |
# remove eval{...} from beginning |
499 |
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
500 |
|
501 |
my $filter_name; |
502 |
# remove filter{...} from beginning |
503 |
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
504 |
|
505 |
{ |
506 |
# fix warnings |
507 |
no warnings 'uninitialized'; |
508 |
|
509 |
# do actual replacement of placeholders |
510 |
# repeatable fields |
511 |
if ($format =~ s/v(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,$i,\$found,$rec_size)/ges) { |
512 |
$just_single = 0; |
513 |
} |
514 |
|
515 |
# non-repeatable fields |
516 |
if ($format =~ s/s(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,0,\$found,$rec_size)/ges) { |
517 |
return if ($i > 0 && $just_single); |
518 |
} |
519 |
} |
520 |
|
521 |
if ($found) { |
522 |
$log->debug("format: $format"); |
523 |
if ($eval_code) { |
524 |
my $eval = $self->fill_in($rec,$eval_code,$i); |
525 |
return if (! $self->_eval($eval)); |
526 |
} |
527 |
if ($filter_name && $self->{'filter'}->{$filter_name}) { |
528 |
$log->debug("filter '$filter_name' for $format"); |
529 |
$format = $self->{'filter'}->{$filter_name}->($format); |
530 |
return unless(defined($format)); |
531 |
$log->debug("filter result: $format"); |
532 |
} |
533 |
# do we have lookups? |
534 |
if ($self->{'lookup'}) { |
535 |
if ($self->{'lookup'}->can('lookup')) { |
536 |
my @lookup = $self->{lookup}->lookup($format); |
537 |
$log->debug("lookup $format", join(", ", @lookup)); |
538 |
return @lookup; |
539 |
} else { |
540 |
$log->warn("Have lookup object but can't invoke lookup method"); |
541 |
} |
542 |
} else { |
543 |
return $format; |
544 |
} |
545 |
} else { |
546 |
return; |
547 |
} |
548 |
} |
549 |
|
550 |
|
551 |
=head2 _rec_to_arr |
552 |
|
553 |
Similar to C<parse> and C<fill_in>, but returns array of all repeatable fields. Usable |
554 |
for fields which have lookups, so they shouldn't be parsed but rather |
555 |
C<paste>d or C<fill_id>ed. Last argument is name of operation: C<paste> or C<fill_in>. |
556 |
|
557 |
my @arr = $webpac->fill_in_to_arr($rec,'[v900];;[v250^a]','paste'); |
558 |
|
559 |
=cut |
560 |
|
561 |
sub _rec_to_arr { |
562 |
my $self = shift; |
563 |
|
564 |
my ($rec, $format_utf8, $code) = @_; |
565 |
|
566 |
my $log = $self->_get_logger(); |
567 |
|
568 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
569 |
return if (! $format_utf8); |
570 |
|
571 |
$log->debug("using $code on $format_utf8"); |
572 |
|
573 |
my $i = 0; |
574 |
my $max = 0; |
575 |
my @arr; |
576 |
my $rec_size = {}; |
577 |
|
578 |
while ($i <= $max) { |
579 |
my @v = $self->$code($rec,$format_utf8,$i++,\$rec_size); |
580 |
if ($rec_size) { |
581 |
foreach my $f (keys %{ $rec_size }) { |
582 |
$max = $rec_size->{$f} if ($rec_size->{$f} > $max); |
583 |
} |
584 |
$log->debug("max set to $max"); |
585 |
undef $rec_size; |
586 |
} |
587 |
if (@v) { |
588 |
push @arr, @v; |
589 |
} else { |
590 |
push @arr, '' if ($max > $i); |
591 |
} |
592 |
} |
593 |
|
594 |
$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
595 |
|
596 |
return @arr; |
597 |
} |
598 |
|
599 |
|
600 |
=head2 get_data |
601 |
|
602 |
Returns value from record. |
603 |
|
604 |
my $text = $self->get_data(\$rec,$f,$sf,$i,\$found,\$rec_size); |
605 |
|
606 |
Required arguments are: |
607 |
|
608 |
=over 8 |
609 |
|
610 |
=item C<$rec> |
611 |
|
612 |
record reference |
613 |
|
614 |
=item C<$f> |
615 |
|
616 |
field |
617 |
|
618 |
=item C<$sf> |
619 |
|
620 |
optional subfield |
621 |
|
622 |
=item C<$i> |
623 |
|
624 |
index offset for repeatable values ( 0 ... $rec_size->{'400^a'} ) |
625 |
|
626 |
=item C<$found> |
627 |
|
628 |
optional variable that will be incremeted if preset |
629 |
|
630 |
=item C<$rec_size> |
631 |
|
632 |
hash to hold maximum occurances of C<field^subfield> combinations |
633 |
(which can be accessed using keys in same format) |
634 |
|
635 |
=back |
636 |
|
637 |
Returns value or empty string, updates C<$found> and C<rec_size> |
638 |
if present. |
639 |
|
640 |
=cut |
641 |
|
642 |
sub get_data { |
643 |
my $self = shift; |
644 |
|
645 |
my ($rec,$f,$sf,$i,$found,$cache) = @_; |
646 |
|
647 |
return '' unless ($$rec->{$f} && ref($$rec->{$f}) eq 'ARRAY'); |
648 |
|
649 |
if (defined($$cache)) { |
650 |
$$cache->{ $f . ( $sf ? '^' . $sf : '' ) } ||= scalar @{ $$rec->{$f} }; |
651 |
} |
652 |
|
653 |
return '' unless ($$rec->{$f}->[$i]); |
654 |
|
655 |
{ |
656 |
no strict 'refs'; |
657 |
if (defined($sf)) { |
658 |
$$found++ if (defined($$found) && $$rec->{$f}->[$i]->{$sf}); |
659 |
return $$rec->{$f}->[$i]->{$sf}; |
660 |
} else { |
661 |
$$found++ if (defined($$found)); |
662 |
# it still might have subfields, just |
663 |
# not specified, so we'll dump some debug info |
664 |
if ($$rec->{$f}->[$i] =~ /HASH/o) { |
665 |
my $out; |
666 |
foreach my $k (keys %{$$rec->{$f}->[$i]}) { |
667 |
my $v = $$rec->{$f}->[$i]->{$k}; |
668 |
$out .= '$' . $k .':' . $v if ($v); |
669 |
} |
670 |
return $out; |
671 |
} else { |
672 |
return $$rec->{$f}->[$i]; |
673 |
} |
674 |
} |
675 |
} |
676 |
} |
677 |
|
678 |
|
679 |
=head2 apply_format |
680 |
|
681 |
Apply format specified in tag with C<format_name="name"> and |
682 |
C<format_delimiter=";;">. |
683 |
|
684 |
my $text = $webpac->apply_format($format_name,$format_delimiter,$data); |
685 |
|
686 |
Formats can contain C<lookup{...}> if you need them. |
687 |
|
688 |
=cut |
689 |
|
690 |
sub apply_format { |
691 |
my $self = shift; |
692 |
|
693 |
my ($name,$delimiter,$data) = @_; |
694 |
|
695 |
my $log = $self->_get_logger(); |
696 |
|
697 |
if (! $self->{'import_xml'}->{'format'}->{$name}) { |
698 |
$log->warn("<format name=\"$name\"> is not defined in ",$self->{'import_xml_file'}); |
699 |
return $data; |
700 |
} |
701 |
|
702 |
$log->warn("no delimiter for format $name") if (! $delimiter); |
703 |
|
704 |
my $format = $self->_x($self->{'import_xml'}->{'format'}->{$name}->{'content'}) || $log->logdie("can't find format '$name'"); |
705 |
|
706 |
my @data = split(/\Q$delimiter\E/, $data); |
707 |
|
708 |
my $out = sprintf($format, @data); |
709 |
$log->debug("using format $name [$format] on $data to produce: $out"); |
710 |
|
711 |
if ($self->{'lookup_regex'} && $out =~ $self->{'lookup_regex'}) { |
712 |
return $self->{'lookup'}->lookup($out); |
713 |
} else { |
714 |
return $out; |
715 |
} |
716 |
|
717 |
} |
718 |
|
719 |
=head2 sort_arr |
720 |
|
721 |
Sort array ignoring case and html in data |
722 |
|
723 |
my @sorted = $webpac->sort_arr(@unsorted); |
724 |
|
725 |
=cut |
726 |
|
727 |
sub sort_arr { |
728 |
my $self = shift; |
729 |
|
730 |
my $log = $self->_get_logger(); |
731 |
|
732 |
# FIXME add Schwartzian Transformation? |
733 |
|
734 |
my @sorted = sort { |
735 |
$a =~ s#<[^>]+/*>##; |
736 |
$b =~ s#<[^>]+/*>##; |
737 |
lc($b) cmp lc($a) |
738 |
} @_; |
739 |
$log->debug("sorted values: ",sub { join(", ",@sorted) }); |
740 |
|
741 |
return @sorted; |
742 |
} |
743 |
|
744 |
|
745 |
=head1 INTERNAL METHODS |
746 |
|
747 |
=head2 _sort_by_order |
748 |
|
749 |
Sort xml tags data structure accoding to C<order=""> attribute. |
750 |
|
751 |
=cut |
752 |
|
753 |
sub _sort_by_order { |
754 |
my $self = shift; |
755 |
|
756 |
my $va = $self->{'import_xml'}->{'indexer'}->{$a}->{'order'} || |
757 |
$self->{'import_xml'}->{'indexer'}->{$a}; |
758 |
my $vb = $self->{'import_xml'}->{'indexer'}->{$b}->{'order'} || |
759 |
$self->{'import_xml'}->{'indexer'}->{$b}; |
760 |
|
761 |
return $va <=> $vb; |
762 |
} |
763 |
|
764 |
=head2 _x |
765 |
|
766 |
Convert strings from C<conf/normalize/*.xml> encoding into application |
767 |
specific encoding (optinally specified using C<code_page> to C<new> |
768 |
constructor). |
769 |
|
770 |
my $text = $n->_x('normalize text string'); |
771 |
|
772 |
This is a stub so that other modules doesn't have to implement it. |
773 |
|
774 |
=cut |
775 |
|
776 |
sub _x { |
777 |
my $self = shift; |
778 |
return shift; |
779 |
} |
780 |
|
781 |
|
782 |
=head1 AUTHOR |
783 |
|
784 |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
785 |
|
786 |
=head1 COPYRIGHT & LICENSE |
787 |
|
788 |
Copyright 2005 Dobrica Pavlinusic, All Rights Reserved. |
789 |
|
790 |
This program is free software; you can redistribute it and/or modify it |
791 |
under the same terms as Perl itself. |
792 |
|
793 |
=cut |
794 |
|
795 |
1; # End of WebPAC::Lookup::Normalize |