Regexp for SPF "IN TXT" in domain zone files

[chrisparr21681]

My DNS zone files are update by a perl script and I am trying to parse an "IN TXT" record for adding SPF entries, but I want to make sure that the SPF record conforms to the RFC 1464 standard.

I am under the impression that the basic standard is that any ASCII character is allowed, but the record must contain an =, there must be 1+ character(s) before and after the =, and that whitespace must be escaped with a ` -- well, im not TOO sure, but you can always check in the RFC - there are a couple of other rules, but the RFC is very verbose.

The problem is I am very bad with regular expressions and am certain to make a complete hash of it.

Any takers?

 

[tchatzi]

well show us a file and tell us what you want to get out of it with a regex, and we might be able to help.

RFC?? toooo much imformation.......


``The wise man doesn't give the right answers,
he poses the right questions.''
TIMTOWTDI

 

[KevinADC]

I agree with perluserpengo. I'm not going go read the RFC to figure it out mate.