Plucene::Analysis::Tokenizer - base class for tokenizers

	my $tokenizer = Plucene::Analysis::Tokenizer::Subclass
		->new({ reader => $reader });

This is an abstract base class for tokenizers.

A Tokenizer is a TokenStream whose input is a Reader.

	my $tokenizer = Plucene::Analysis::Tokenizer::Subclass
		->new({ reader => $reader });

This will create a new tokenizer.

This must be defined in a subclass

Close the input reader.