body_fld_param

# File lib/net/imap.rb, line 2578
      def body_fld_param
        token = lookahead
        if token.symbol == T_NIL
          shift_token
          return nil
        end
        match(T_LPAR)
        param = {}
        while true
          token = lookahead
          case token.symbol
          when T_RPAR
            shift_token
            break
          when T_SPACE
            shift_token
          end
          name = case_insensitive_string
          match(T_SPACE)
          val = string
          param[name] = val
        end
        return param
      end