def accept
      @env['sinatra.accept'] ||= begin
        if @env.include? 'HTTP_ACCEPT' and @env['HTTP_ACCEPT'].to_s != ''
          @env['HTTP_ACCEPT'].to_s.scan(HEADER_VALUE_WITH_PARAMS).
            map! { |e| AcceptEntry.new(e) }.sort
        else
          [AcceptEntry.new('*/*')]
        end
      end
    end
def accept
      @env['sinatra.accept'] ||= begin
        if @env.include? 'HTTP_ACCEPT' and @env['HTTP_ACCEPT'].to_s != ''
          @env['HTTP_ACCEPT'].to_s.scan(HEADER_VALUE_WITH_PARAMS).
            map! { |e| AcceptEntry.new(e) }.sort
        else
          [AcceptEntry.new('*/*')]
        end
      end
    end
Returns an array of acceptable media types for the response