/[webpac2]/trunk/lib/WebPAC/Normalize.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 74 by dpavlin, Sun Nov 20 20:13:39 2005 UTC revision 219 by dpavlin, Mon Dec 5 17:48:08 2005 UTC
# Line 11  WebPAC::Normalize - data mungling for no Line 11  WebPAC::Normalize - data mungling for no
11    
12  =head1 VERSION  =head1 VERSION
13    
14  Version 0.02  Version 0.04
15    
16  =cut  =cut
17    
18  our $VERSION = '0.02';  our $VERSION = '0.04';
19    
20  =head1 SYNOPSIS  =head1 SYNOPSIS
21    
# Line 82  Create new normalisation object Line 82  Create new normalisation object
82          db => $db_obj,          db => $db_obj,
83          lookup_regex => $lookup->regex,          lookup_regex => $lookup->regex,
84          lookup => $lookup_obj,          lookup => $lookup_obj,
85            prefix => 'foobar',
86    );    );
87    
88  Parametar C<filter> defines user supplied snippets of perl code which can  Parametar C<filter> defines user supplied snippets of perl code which can
89  be use with C<filter{...}> notation.  be use with C<filter{...}> notation.
90    
91    C<prefix> is used to form filename for database record (to support multiple
92    source files which are joined in one database).
93    
94  Recommended parametar C<lookup_regex> is used to enable parsing of lookups  Recommended parametar C<lookup_regex> is used to enable parsing of lookups
95  in structures. If you pass this parametar, you must also pass C<lookup>  in structures. If you pass this parametar, you must also pass C<lookup>
96  which is C<WebPAC::Lookup> object.  which is C<WebPAC::Lookup> object.
# Line 111  sub new { Line 115  sub new {
115    
116          $log->logdie("lookup must be WebPAC::Lookup object") if ($self->{'lookup'} && ! $self->{'lookup'}->isa('WebPAC::Lookup'));          $log->logdie("lookup must be WebPAC::Lookup object") if ($self->{'lookup'} && ! $self->{'lookup'}->isa('WebPAC::Lookup'));
117    
118            $log->warn("no prefix defined. please check that!") unless ($self->{'prefix'});
119    
120          $self ? return $self : return undef;          $self ? return $self : return undef;
121  }  }
122    
# Line 124  This structures are used to produce outp Line 130  This structures are used to produce outp
130    
131   my $ds = $webpac->data_structure($rec);   my $ds = $webpac->data_structure($rec);
132    
 B<Note: historical oddity follows>  
   
 This method will also set C<< $webpac->{'currnet_filename'} >> if there is  
 C<< <filename> >> tag and C<< $webpac->{'headline'} >> if there is  
 C<< <headline> >> tag.  
   
133  =cut  =cut
134    
135  sub data_structure {  sub data_structure {
# Line 140  sub data_structure { Line 140  sub data_structure {
140          my $rec = shift;          my $rec = shift;
141          $log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o);          $log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o);
142    
143            $log->debug("data_structure rec = ", sub { Dumper($rec) });
144    
145            $log->logdie("need unique ID (mfn) in field 000 of record ", sub { Dumper($rec) } ) unless (defined($rec->{'000'}));
146    
147            my $id = $rec->{'000'}->[0] || $log->logdie("field 000 isn't array!");
148    
149          my $cache_file;          my $cache_file;
150    
151          if ($self->{'db'}) {          if ($self->{'db'}) {
152                  my $ds = $self->{'db'}->load_ds($rec);                  my $ds = $self->{'db'}->load_ds( id => $id, prefix => $self->{prefix} );
153                  $log->debug("load_ds( rec = ", sub { Dumper($rec) }, ") = ", sub { Dumper($ds) });                  $log->debug("load_ds( rec = ", sub { Dumper($rec) }, ") = ", sub { Dumper($ds) });
154                  return $ds if ($ds);                  return $ds if ($ds);
155                  $log->debug("cache miss, creating");                  $log->debug("cache miss, creating");
# Line 195  sub data_structure { Line 201  sub data_structure {
201                                  @v = map { $self->apply_format($tag->{'format_name'},$tag->{'format_delimiter'},$_) } @v;                                  @v = map { $self->apply_format($tag->{'format_name'},$tag->{'format_delimiter'},$_) } @v;
202                          }                          }
203    
                         if ($field eq 'filename') {  
                                 $self->{'current_filename'} = join('',@v);  
                                 $log->debug("filename: ",$self->{'current_filename'});  
                         } elsif ($field eq 'headline') {  
                                 $self->{'headline'} .= join('',@v);  
                                 $log->debug("headline: ",$self->{'headline'});  
                                 next; # don't return headline in data_structure!  
                         }  
   
204                          # delimiter will join repeatable fields                          # delimiter will join repeatable fields
205                          if ($tag->{'delimiter'}) {                          if ($tag->{'delimiter'}) {
206                                  @v = ( join($tag->{'delimiter'}, @v) );                                  @v = ( join($tag->{'delimiter'}, @v) );
# Line 257  sub data_structure { Line 254  sub data_structure {
254    
255          }          }
256    
         $log->logdie("there is no current_filename defined! Do you have filename tag in conf/normalize/?.xml") unless ($self->{'current_filename'});  
   
257          $self->{'db'}->save_ds(          $self->{'db'}->save_ds(
258                    id => $id,
259                  ds => $ds,                  ds => $ds,
260                  current_filename => $self->{'current_filename'},                  prefix => $self->{prefix},
                 headline => $self->{'headline'},  
261          ) if ($self->{'db'});          ) if ($self->{'db'});
262    
263          $log->debug("ds: ", sub { Dumper($ds) });          $log->debug("ds: ", sub { Dumper($ds) });
# Line 680  under the same terms as Perl itself. Line 675  under the same terms as Perl itself.
675    
676  =cut  =cut
677    
678  1; # End of WebPAC::DB  1; # End of WebPAC::Normalize
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