Lucy::Analysis::Analyzer – Tokenize/modify/filter text.
An Analyzer is a filter which processes text, transforming it from one form into another. For instance, an analyzer might break up a long text into smaller pieces (RegexTokenizer), or it might perform case folding to facilitate case-insensitive search (Normalizer).
lucy_Analyzer* lucy_Analyzer_init( lucy_Analyzer *self );
lucy_Inversion* // incremented lucy_Analyzer_Transform( lucy_Analyzer *self, lucy_Inversion *inversion );
Take a single Inversion as input and returns an Inversion, either the same one (presumably transformed in some way), or a new one.
lucy_Inversion* // incremented lucy_Analyzer_Transform_Text( lucy_Analyzer *self, cfish_String *text );
Kick off an analysis chain, creating an Inversion from string input. The default implementation simply creates an initial Inversion with a single Token, then calls Transform(), but occasionally subclasses will provide an optimized implementation which minimizes string copies.
Analyze text and return an array of token texts.
cfish_Obj* // incremented lucy_Analyzer_Dump( lucy_Analyzer *self );
Dump the analyzer as hash.
Subclasses should call Dump() on the superclass. The returned object is a hash which should be populated with parameters of the analyzer.
Returns: A hash containing a description of the analyzer.
Reconstruct an analyzer from a dump.
Subclasses should first call Load() on the superclass. The
returned object is an analyzer which should be reconstructed by
setting the dumped parameters from the hash contained in
Note that the invocant analyzer is unused.
Returns: An analyzer.
Lucy::Analysis::Analyzer is a Clownfish::Obj.
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