# File lib/cucumber/parser/feature.rb, line 371
      def _nt_comment
        start_index = index
        if node_cache[:comment].has_key?(index)
          cached = node_cache[:comment][index]
          @index = cached.interval.end if cached
          return cached
        end

        s0, i0 = [], index
        loop do
          i1, s1 = index, []
          r2 = _nt_comment_line
          s1 << r2
          if r2
            r3 = _nt_white
            s1 << r3
          end
          if s1.last
            r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
            r1.extend(Comment0)
          else
            @index = i1
            r1 = nil
          end
          if r1
            s0 << r1
          else
            break
          end
        end
        r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
        r0.extend(Comment1)

        node_cache[:comment][start_index] = r0

        r0
      end