Plucene::Plugin::Analyzer::SnowballFilter - Snowball stemming on the token stream

Plucene-Plugin-Analyzer-SnowballAnalyzer documentation Contained in the Plucene-Plugin-Analyzer-SnowballAnalyzer distribution.

Index

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NAME

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Plucene::Plugin::Analyzer::SnowballFilter - Snowball stemming on the token stream

SYNOPSIS

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	# isa Plucene::Analysis:::TokenFilter

	my $token = $porter_stem_filter->next;

DESCRIPTION

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This class transforms the token stream as per the Snowball stemming algorithm.

You can find more information on the Snowball algorithm at http://snwoball.tartarus.org/.

METHODS

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next

	my $token = $porter_stem_filter->next;

Returns the next input token, after being stemmed.

Plucene-Plugin-Analyzer-SnowballAnalyzer documentation Contained in the Plucene-Plugin-Analyzer-SnowballAnalyzer distribution. 
package Plucene::Plugin::Analyzer::SnowballFilter;


use strict;
use warnings;

use Lingua::Stem::Snowball;

use base 'Plucene::Analysis::TokenFilter';


sub next {
	my $self = shift;
	my $t = $self->input->next or return;
	my @r;
	push @r, Lingua::Stem::Snowball::stem($Plucene::Plugin::Analyzer::SnowballAnalyzer::LANG, $t->text);
	$t->text(@r);
	return $t;
}

1;