module Cucumber::Parser::Feature

def _nt_lines_to_keyword
  start_index = index
  if node_cache[:lines_to_keyword].has_key?(index)
    cached = node_cache[:lines_to_keyword][index]
    @index = cached.interval.end if cached
    return cached
  end
  s0, i0 = [], index
  loop do
    i1, s1 = index, []
    i2 = index
    i3, s3 = index, []
    r4 = _nt_eol
    s3 << r4
    if r4
      s5, i5 = [], index
      loop do
        r6 = _nt_space
        if r6
          s5 << r6
        else
          break
        end
      end
      r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
      s3 << r5
      if r5
        r7 = _nt_reserved_words_and_symbols
        s3 << r7
      end
    end
    if s3.last
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      r3.extend(LinesToKeyword0)
    else
      @index = i3
      r3 = nil
    end
    if r3
      r2 = nil
    else
      @index = i2
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r2
    if r2
      if index < input_length
        r8 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure("any character")
        r8 = nil
      end
      s1 << r8
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(LinesToKeyword1)
    else
      @index = i1
      r1 = nil
    end
    if r1
      s0 << r1
    else
      break
    end
  end
  r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
  r0.extend(LinesToKeyword2)
  node_cache[:lines_to_keyword][start_index] = r0
  r0
end