_nt_newline_or_eoi

in logstash-core/lib/logstash/config/grammar.rb [109:186]

• 74 lines of code
• 15 McCabe index (conditional complexity)

  def _nt_newline_or_eoi
    start_index = index
    if node_cache[:newline_or_eoi].has_key?(index)
      cached = node_cache[:newline_or_eoi][index]
      if cached
        node_cache[:newline_or_eoi][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    if (match_len = has_terminal?("\r", false, index))
      r3 = true
      @index += match_len
    else
      terminal_parse_failure('"\\r"')
      r3 = nil
    end
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r2
    if r2
      if (match_len = has_terminal?("\n", false, index))
        r4 = true
        @index += match_len
      else
        terminal_parse_failure('"\\n"')
        r4 = nil
      end
      s1 << r4
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(NewlineOrEoi0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
      r0 = r1
    else
      i5 = index
      if index < input_length
        r6 = true
        @index += 1
      else
        terminal_parse_failure("any character")
        r6 = nil
      end
      if r6
        @index = i5
        r5 = nil
        terminal_parse_failure("any character", true)
      else
        @terminal_failures.pop
        @index = i5
        r5 = instantiate_node(SyntaxNode,input, index...index)
      end
      if r5
        r5 = SyntaxNode.new(input, (index-1)...index) if r5 == true
        r0 = r5
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:newline_or_eoi][start_index] = r0

    r0
  end