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package Plucene::Analysis::LowerCaseFilter;
=head1 NAME
Plucene::Analysis::LowerCaseFilter - normalises token text to lower case
=head1 SYNOPSIS
# usa Plucene::Analysis::TokenFilter
my $next = $l_case_filter->next;
=head1 DESCRIPTION
This normalises token text to lower case.
=head1 METHODS
=cut
use strict;
use warnings;
use base 'Plucene::Analysis::TokenFilter';
=head2 next
my $next = $l_case_filter->next;
This will return the next token in the stream, or undef at the end of string.
=cut
sub next {
my $self = shift;
my $t = $self->input->next() or return;
$t->text(lc $t->text);
return $t;
}
1;
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