11 Aug 2011 02:55:56 UTC
- Distribution: Lucy
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- This version
- Latest version++ed by:6 non-PAUSE usersCREAMYG Marvin Humphreyand 1 contributors
- The Apache Lucy Project <lucy-dev at incubator dot apache dot org>
Lucy::Analysis::PolyAnalyzer - Multiple Analyzers in series.
my $schema = Lucy::Plan::Schema->new; my $polyanalyzer = Lucy::Analysis::PolyAnalyzer->new( language => 'en', ); my $type = Lucy::Plan::FullTextType->new( analyzer => $polyanalyzer, ); $schema->spec_field( name => 'title', type => $type ); $schema->spec_field( name => 'content', type => $type );
A PolyAnalyzer is a series of Analyzers, each of which will be called upon to "analyze" text in turn. You can either provide the Analyzers yourself, or you can specify a supported language, in which case a PolyAnalyzer consisting of a CaseFolder, a RegexTokenizer, and a SnowballStemmer will be generated for you.
en => English, da => Danish, de => German, es => Spanish, fi => Finnish, fr => French, hu => Hungarian, it => Italian, nl => Dutch, no => Norwegian, pt => Portuguese, ro => Romanian, ru => Russian, sv => Swedish, tr => Turkish,
my $analyzer = Lucy::Analysis::PolyAnalyzer->new( language => 'es', ); # or... my $case_folder = Lucy::Analysis::CaseFolder->new; my $tokenizer = Lucy::Analysis::RegexTokenizer->new; my $stemmer = Lucy::Analysis::SnowballStemmer->new( language => 'en' ); my $polyanalyzer = Lucy::Analysis::PolyAnalyzer->new( analyzers => [ $case_folder, $whitespace_tokenizer, $stemmer, ], );
language - An ISO code from the list of supported languages.
analyzers - An array of Analyzers. The order of the analyzers matters. Don't put a SnowballStemmer before a RegexTokenizer (can't stem whole documents or paragraphs -- just individual words), or a SnowballStopFilter after a SnowballStemmer (stemmed words, e.g. "themselv", will not appear in a stoplist). In general, the sequence should be: normalize, tokenize, stopalize, stem.
Getter for "analyzers" member.