SYNOPSIS

my $whitespace_tokenizer
= KinoSearch::Analysis::Tokenizer->new( token_re => qr/\S+/, );
# or...
my $word_char_tokenizer
= KinoSearch::Analysis::Tokenizer->new( token_re => qr/\w+/, );
# or...
my $apostrophising_tokenizer = KinoSearch::Analysis::Tokenizer->new;
# then... once you have a tokenizer, put it into a PolyAnalyzer
my $polyanalyzer = KinoSearch::Analysis::PolyAnalyzer->new(
analyzers => [ $lc_normalizer, $word_char_tokenizer, $stemmer ], );

DESCRIPTION

Generically, ``tokenizing'' is a process of breaking up a string into an array of ``tokens''.

    # before:
    my $string = "three blind mice";
    # after:
    @tokens = qw( three blind mice );

KinoSearch::Analysis::Tokenizer decides where it should break up the text based on the value of "token_re".

    # before:
    my $string = "Eats, Shoots and Leaves.";
    # tokenized by $whitespace_tokenizer
    @tokens = qw( Eats, Shoots and Leaves. );
    # tokenized by $word_char_tokenizer
    @tokens = qw( Eats Shoots and Leaves   );

METHODS

new

    # match "O'Henry" as well as "Henry" and "it's" as well as "it"
    my $token_re = qr/
            \b        # start with a word boundary
            \w+       # Match word chars.
            (?:       # Group, but don't capture...
               '\w+   # ... an apostrophe plus word chars.
            )?        # Matching the apostrophe group is optional.
            \b        # end with a word boundary
        /xsm;
    my $tokenizer = KinoSearch::Analysis::Tokenizer->new(
        token_re => $token_re, # default: what you see above
    );

Constructor. Takes one hash style parameter.

• token_re - must be a pre-compiled regular expression matching one token.

COPYRIGHT

Copyright 2005-2009 Marvin Humphrey

LICENSE, DISCLAIMER, BUGS, etc.

See KinoSearch version 0.165.