# File lib/puppet-lint/data.rb, line 61
    def title_tokens
      @title_tokens ||= Proc.new do
        result = []
        tokens.each_index do |token_idx|
          if tokens[token_idx].type == :COLON
            # gather a list of tokens that are resource titles
            if tokens[token_idx-1].type == :RBRACK
              array_start_idx = tokens.rindex { |r|
                r.type == :LBRACK
              }
              title_array_tokens = tokens[(array_start_idx + 1)..(token_idx - 2)]
              result += title_array_tokens.select { |token|
                {:STRING => true, :NAME => true}.include? token.type
              }
            else
              next_token = tokens[token_idx].next_code_token
              if next_token.type != :LBRACE
                result << tokens[token_idx - 1]
              end
            end
          end
        end
        result
      end.call
    end