Lucy::Analysis::Normalizer - Unicode normalization, case folding and accent stripping
Normalizer is an Analyzer which normalizes tokens to one of the Unicode normalization forms.
my $normalizer = Lucy::Analysis::Normalizer->new; my $polyanalyzer = Lucy::Analysis::PolyAnalyzer->new( analyzers => [ $normalizer, $tokenizer, $stemmer ], );
Optionally, it performs Unicode case folding and converts accented characters to their base character.
If you use highlighting, Normalizer should be run after tokenization because it might add or remove characters.
new( [labeled params] )
my $normalizer = Lucy::Analysis::Normalizer->new( normalization_form => 'NFKC', case_fold => 1, strip_accents => 0, );
normalization_form - Unicode normalization form, can be one of 'NFC', 'NFKC', 'NFD', 'NFKD'. Defaults to 'NFKC'.
case_fold - Perform case folding, default is true.
strip_accents - Strip accents, default is false.