++ed by:
ARISTOTLE EMAZEP ASHLEY JETEVE KEEDI

9 PAUSE users
5 non-PAUSE users.

Marvin Humphrey
and 1 contributors

NAME

Lucy::Analysis::Normalizer - Unicode normalization, case folding and accent stripping.

SYNOPSIS

    my $normalizer = Lucy::Analysis::Normalizer->new;
    
    my $polyanalyzer = Lucy::Analysis::PolyAnalyzer->new(
        analyzers => [ $tokenizer, $normalizer, $stemmer ],
    );

DESCRIPTION

Normalizer is an Analyzer which normalizes tokens to one of the Unicode normalization forms. 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.

CONSTRUCTORS

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.

INHERITANCE

Lucy::Analysis::Normalizer isa Lucy::Analysis::Analyzer isa Clownfish::Obj.