# File lib/kwartz/parser.rb, line 486
    def _parse_strs
      list = _parse_list()
      list2 = []
      list.each do |item|
        case item
        when /\A"(.*)"\z/  ; list2 << $1
        when /\A'(.*)'\z/  ; list2 << $1
        else
          raise parse_error("'#{item}': argument of 'remove' should be string.")
        end
      end
      return list2
    end