# File lib/test/unit/autorunner.rb, line 341
      def keyword_display(keywords)
        keywords = keywords.collect do |keyword, _|
          keyword.to_s
        end.uniq.sort

        i = 0
        keywords.collect do |keyword|
          if (i > 0 and keyword[0] == keywords[i - 1][0]) or
              ((i < keywords.size - 1) and (keyword[0] == keywords[i + 1][0]))
            n = 2
          else
            n = 1
          end
          i += 1
          keyword.sub(/^(.{#{n}})([A-Za-z]+)(?=\w*$)/, '\\1[\\2]')
        end.join(", ")
      end