Lingua-FreeLing3
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lib/Lingua/FreeLing3/ChartParser.pm view on Meta::CPAN
package Lingua::FreeLing3::ChartParser;
use warnings;
use strict;
use Carp;
use Lingua::FreeLing3;
use Lingua::FreeLing3::Config;
use File::Spec::Functions 'catfile';
use Lingua::FreeLing3::Bindings;
use Lingua::FreeLing3::Sentence;
use parent -norequire, 'Lingua::FreeLing3::Bindings::chart_parser';
our $VERSION = "0.01";
=encoding UTF-8
=head1 NAME
Lingua::FreeLing3::ChartParser - Interface to FreeLing3 ChartParser
=head1 SYNOPSIS
use Lingua::FreeLing3::ChartParser;
my $pt_cparser = Lingua::FreeLing3::ChartParser->new("pt");
$taggedListOfSentences = $pt_cparser->analyze($listOfSentences);
=head1 DESCRIPTION
Interface to the FreeLing3 chart parser library.
=head2 C<new>
Object constructor. One argument is required: the languge code
(C<Lingua::FreeLing3> will search for the tagger data file).
=cut
sub new {
my ($class, $lang) = @_;
my $config = Lingua::FreeLing3::Config->new($lang);
my $file = $config->config("GrammarFile");
unless (-f $file) {
carp "Cannot find chart tagger data file. Tried [$file]\n";
return undef;
}
my $self = $class->SUPER::new($file);
return bless $self => $class
}
=head2 C<parse>
Alias to C<analyze>.
=cut
sub parse { &analyze }
=head2 C<analyze>
Receives a list of sentences, and returns that same list of sentences
after tagging process, enriching each sentence with a parse tree.
=cut
sub analyze {
my ($self, $sentences, %opts) = @_;
unless (Lingua::FreeLing3::_is_sentence_list($sentences)) {
carp "Error: analyze argument isn't a list of sentences";
return undef;
}
$sentences = $self->SUPER::analyze($sentences);
for my $s (@$sentences) {
$s = Lingua::FreeLing3::Sentence->_new_from_binding($s);
}
return $sentences;
}
=head2 C<start_symbol>
Returns the start symbol for the chart parser.
=cut
sub start_symbol {
my $self = shift;
return $self->SUPER::get_start_symbol();
}
1;
__END__
=head1 SEE ALSO
Lingua::FreeLing3 (3), freeling, perl(1)
=head1 AUTHOR
Alberto Manuel Brandão Simões, E<lt>ambs@cpan.orgE<gt>
Jorge Cunha Mendes E<lt>jorgecunhamendes@gmail.comE<gt>
=head1 COPYRIGHT AND LICENSE
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