class Nokogiri::CSS::Parser

def _reduce_41(val, _values, result) 

def _reduce_41(val, _values, result)
        if val[1] == 'n'
          val << "+"
          val << "0"
          result = Node.new(:AN_PLUS_B, val)
        else
          raise Racc::ParseError, "parse error on IDENT '#{val[1]}'"
        end
      
    result
end