# File lib/ruote/exp/command.rb, line 68
    def lookup_att_com (dir, workitem)

      ATT_COMMANDS.each do |com|

        c =
          attribute("#{com}_#{dir}", workitem) ||
          attribute("#{com}-#{dir}", workitem)

        next unless c

        c = Condition.true?(c)

        return [ com, nil ] \
          if (dir == 'if' && c) || (dir == 'unless' && ( ! c))
      end

      nil
    end