/[webpac2]/trunk/lib/WebPAC/Parser.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
ViewVC logotype

Diff of /trunk/lib/WebPAC/Parser.pm

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 724 by dpavlin, Fri Sep 29 18:55:31 2006 UTC revision 976 by dpavlin, Sat Nov 3 12:30:43 2007 UTC
# Line 13  use base qw/WebPAC::Common/; Line 13  use base qw/WebPAC::Common/;
13    
14  =head1 NAME  =head1 NAME
15    
16  WebPAC::Parser - parse perl normalization configuration files and mungle it  WebPAC::Parser - parse perl normalization configuration files (rules) and mungle it
17    
18  =head1 VERSION  =head1 VERSION
19    
20  Version 0.06  Version 0.08
21    
22  =cut  =cut
23    
24  our $VERSION = '0.06';  our $VERSION = '0.08';
25    
26  =head1 SYNOPSIS  =head1 SYNOPSIS
27    
28  This module will parse L<WebPAC::Normalize/lookup> directives and generate source  This module will parse L<WebPAC::Normalize/lookup> directives and generate source
29  to produce lookups and normalization.  to produce lookups and normalization. It will also parse other parts of
30    source to produce some of DWIM (I<Do What I Mean>) magic
31    (like producing MARC oputput using L<WebPAC::Output::MARC> if there are C<marc_*>
32    rules in normalisation).
33    
34  It's written using L<PPI>, pure-perl parser for perl and heavily influenced by  It's written using L<PPI>, pure-perl parser for perl and heavily influenced by
35  reading about LISP. It might be a bit over-the board, but at least it removed  reading about LISP. It might be a bit over-the board, but at least it removed
# Line 46  Create new parser object. Line 49  Create new parser object.
49    my $parser = new WebPAC::Parser(    my $parser = new WebPAC::Parser(
50          config => new WebPAC::Config(),          config => new WebPAC::Config(),
51          base_path => '/optional/path/to/conf',          base_path => '/optional/path/to/conf',
52            only_database => $only
53    );    );
54    
55  =cut  =cut
# Line 165  sub normalize_rules { Line 169  sub normalize_rules {
169          return $self->{_normalize_source}->{ _q($database) }->{ _q($input) };          return $self->{_normalize_source}->{ _q($database) }->{ _q($input) };
170  }  }
171    
172    
173    =head2 have_rules
174    
175      my $do_marc = $parser->have_rules('marc', $database, $input);
176      my $do_index = $parser->have_rules('search', $database);
177    
178    This function will return hash containing count of all found C<marc_*> or
179    C<search> directives. Input name is optional.
180    
181    =cut
182    
183    sub have_rules {
184            my $self = shift;
185    
186            my $log = $self->_get_logger();
187            my $type = shift @_ || $log->logconfess("need at least type");
188            my $database = shift @_ || $log->logconfess("database is required");
189            my $input = shift @_;
190    
191            $input = _input_name($input);
192    
193    
194            return unless defined( $self->{_have_rules}->{ _q($database) } );
195    
196            my $database_rules = $self->{_have_rules}->{ _q($database ) };
197    
198            if (defined($input)) {
199    
200                    return unless (
201                            defined( $database_rules->{ _q($input) } ) &&
202                            defined( $database_rules->{ _q($input) }->{ $type } )
203                    );
204    
205                    return $database_rules->{ _q($input) }->{ $type };
206            }
207    
208            my $usage;
209    
210            foreach my $i (keys %{ $database_rules }) {
211                    next unless defined( $database_rules->{$i}->{$type} );
212    
213                    foreach my $t (keys %{ $database_rules->{ $i }->{$type} }) {
214                            $usage->{ $t } += $database_rules->{ $i }->{ $t };
215                    }
216            }
217    
218            return $usage;
219    
220    }
221    
222    
223  =head1 PRIVATE  =head1 PRIVATE
224    
225  =head2 _read_sources  =head2 _read_sources
# Line 182  sub _read_sources { Line 237  sub _read_sources {
237    
238          my $nr = 0;          my $nr = 0;
239    
240          my @lookups;          my @sources;
241    
242            my $lookup_src_cache;
243    
244            my $only_database = $self->{only_database};
245            my $only_input = $self->{only_input};
246    
247          $self->{config}->iterate_inputs( sub {          $self->{config}->iterate_inputs( sub {
248                  my ($input, $database) = @_;                  my ($input, $database) = @_;
249    
250                    return if ( $only_database && $database !~ m/$only_database/i );
251                    return if ( $only_input && $input->{name} !~ m/$only_input/i );
252    
253                  $log->debug("database: $database input = ", dump($input));                  $log->debug("database: $database input = ", dump($input));
254    
255                  foreach my $normalize (@{ $input->{normalize} }) {                  foreach my $normalize (@{ $input->{normalize} }) {
# Line 205  sub _read_sources { Line 268  sub _read_sources {
268    
269                          $self->{valid_inputs}->{$database}->{$input_name}++;                          $self->{valid_inputs}->{$database}->{$input_name}++;
270    
271                          push @lookups, sub {                          push @sources, sub {
272                                  $self->_parse_lookups( $database, $input_name, $full, $s );                                  #warn "### $database $input_name, $full ###\n";
273                                    $self->_parse_source( $database, $input_name, $full, $s );
274                          };                          };
275    
276                          $nr++;                          $nr++;
# Line 215  sub _read_sources { Line 279  sub _read_sources {
279    
280          $log->debug("found $nr source files");          $log->debug("found $nr source files");
281    
282          # parse all lookups          # parse all sources
283          $_->() foreach (@lookups);          $_->() foreach (@sources);
284    
285          return $nr;          return $nr;
286  }  }
287    
288  =head2 _parse_lookups  =head2 _parse_source
289    
290    $parser->_parse_lookups($database,$input,$path,$source);    $parser->_parse_source($database,$input,$path,$source);
291    
292  Called for each normalize source (rules) in each input by L</_read_sources>  Called for each normalize source (rules) in each input by L</_read_sources>
293    
# Line 231  It will report invalid databases and inp Line 295  It will report invalid databases and inp
295    
296  =cut  =cut
297    
298  sub _parse_lookups {  sub _parse_source {
299          my $self = shift;          my $self = shift;
300          my ($database, $input, $path, $source) = @_;          my ($database, $input, $path, $source) = @_;
301    
# Line 248  sub _parse_lookups { Line 312  sub _parse_lookups {
312    
313          my $Document = PPI::Document->new( \$source ) || $log->logdie("can't parse source:\n", $self->{source});          my $Document = PPI::Document->new( \$source ) || $log->logdie("can't parse source:\n", $self->{source});
314    
315          $Document->prune('PPI::Token::Whitespace');          #$Document->prune('PPI::Token::Whitespace');
316          $Document->prune('PPI::Token::Comment');          $Document->prune('PPI::Token::Comment');
317          #$Document->prune('PPI::Token::Operator');          #$Document->prune('PPI::Token::Operator');
318    
# Line 362  sub _parse_lookups { Line 426  sub _parse_lookups {
426    
427          $log->error("Parser errors:\n", join("\n",@{ $self->{_lookup_errors} }) ) if ($self->{_lookup_errors});          $log->error("Parser errors:\n", join("\n",@{ $self->{_lookup_errors} }) ) if ($self->{_lookup_errors});
428    
429            $Document->find( sub {
430                            my ($Document,$Element) = @_;
431    
432                            $Element->isa('PPI::Token::Word') or return '';
433                            if ($Element->content =~ m/^(marc|search)/) {
434                                    my $what = $1;
435                                    $log->debug("found $what rules in $database/$input");
436                                    $self->{_have_rules}->{ $database }->{ $input }->{ $what }->{ $Element->content }++;
437                            } else {
438                                    return '';
439                            }
440            });
441    
442          return 1;          return 1;
443  }  }
444    
Legend:
Removed from v.724  
changed lines
  Added in v.976
  ViewVC Help
Powered by ViewVC 1.1.26