'Process one line from the text format question section.'

def _question_line(self, section):

    token = self.tok.get(want_leading=True)
    if (not token.is_whitespace()):
        self.last_name = dns.name.from_text(token.value, None)
    name = self.last_name
    token = self.tok.get()
    if (not token.is_identifier()):
        raise dns.exception.SyntaxError
    try:
        rdclass = dns.rdataclass.from_text(token.value)
        token = self.tok.get()
        if (not token.is_identifier()):
            raise dns.exception.SyntaxError
    except dns.exception.SyntaxError:
        raise dns.exception.SyntaxError
    except:
        rdclass = dns.rdataclass.IN
    rdtype = dns.rdatatype.from_text(token.value)
    self.message.find_rrset(self.message.question, name, rdclass, rdtype, create=True, force_unique=True)
    if self.updating:
        self.zone_rdclass = rdclass
    self.tok.get_eol()
