module Html2rss
  module AttributePostProcessors
    class Substring
      def initialize(value, options, _item)
        @value = value
        @options = options
      end

      def get
        ending = @options['end'].to_i.positive? ? @options['end'].to_i : @value.length
        @value[@options['start'].to_i..ending]
      end
    end
  end
end