new (FastRI::FullTextIndex)

    # File lib/fastri/full_text_index.rb, line 47
      def initialize(type, fulltext, sarray, options)
        options = DEFAULT_OPTIONS.merge(options)
        case type
        when :io
          @fulltext_IO = fulltext
          @sarray_IO   = sarray
        when :filenames
          @fulltext_fname = fulltext
          @sarray_fname   = sarray
        else raise "Unknown type"
        end
        @type = type
        @max_query_size = options[:max_query_size]
        check_magic
      end