Simple DNS ZoneFile parser

Parse a DNS ZoneFile (as specified in https://www.ietf.org/rfc/rfc1035.txt) into a series of more-easily-processed "Record" structures.

The list of RecordTypes, their values, and meanings, was taken from https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml, which in turn references RFCs:

• RFC1035
• RFC1183
• RFC1348
• RFC1637
• RFC1706
• RFC1712
• RFC1876
• RFC1995
• RFC2163
• RFC2168
• RFC2230
• RFC2535
• RFC2536
• RFC2537
• RFC2539
• RFC2782
• RFC2845
• RFC2874
• RFC2915
• RFC2930
• RFC2931
• RFC3008
• RFC3110
• RFC3123
• RFC3225
• RFC3226
• RFC3403
• RFC3596
• RFC3658
• RFC3755
• RFC4025
• RFC4034
• RFC4255
• RFC4398
• RFC4431
• RFC4701
• RFC5155
• RFC5864
• RFC5936
• RFC6563
• RFC6672
• RFC6698
• RFC6742
• RFC6891
• RFC6895
• RFC7043
• RFC7208
• RFC7344
• RFC7477
• RFC7553
• RFC7929
• RFC8005
• RFC8162
• RFC8482

Example:

stream, _ := os.Open(zonefile)
var record gozone.Record
scanner := gozone.NewScanner(h)

for {
	err := scanner.Next(&record)
	if err != nil {
		break
	}

	fmt.Printf("a '%s' Record for domain/subdomain '%s'",
		record.Type,
		record.DomainName,
	)
}