Filter that stems words according to the porter2 stemmer algorithm. More...

Inheritance diagram for meta::analyzers::filters::porter2_stemmer:

Public Member Functions
	porter2_stemmer (std::unique_ptr< token_stream > source)
	Constructs a new porter2 stemmer filter, reading tokens from the given source. More...

	porter2_stemmer (const porter2_stemmer &other)
	Copy constructor. More...

void	set_content (const std::string &content) override
	Sets the content for the beginning of the filter chain. More...

std::string	next () override
	Obtains the next token in the sequence.

	operator bool () const override
	Determines if there are more tokens available in the stream.

Public Member Functions inherited from meta::util::multilevel_clonable< Root, Base, Derived >
virtual std::unique_ptr< Root >	clone () const
	Clones the given object. More...

Private Member Functions
void	next_token ()
	Finds the next valid token for this filter.

Private Attributes
std::unique_ptr< token_stream >	source_
	The stream to read tokens from.

util::optional< std::string >	token_
	The buffered next token.

Detailed Description

Filter that stems words according to the porter2 stemmer algorithm.

Requires that the porter2 stemmer project submodule be downloaded.

Constructor & Destructor Documentation

meta::analyzers::filters::porter2_stemmer::porter2_stemmer ( std::unique_ptr< token_stream > source )

Constructs a new porter2 stemmer filter, reading tokens from the given source.

Parameters

source The source to construct the filter from

meta::analyzers::filters::porter2_stemmer::porter2_stemmer ( const porter2_stemmer & other )

Copy constructor.

Parameters

other The porter2_stemmer to copy into this one

void meta::analyzers::filters::porter2_stemmer::set_content ( const std::string & content )

override

Sets the content for the beginning of the filter chain.

Parameters

content The string content to set

The documentation for this class was generated from the following files: