spf-discuss
[Top] [All Lists]

[spf-discuss] Imroved <toplabel> idea (was: RFC 4408 <draft-schlitt-spf-classic-02.txt> -- AUTH48 changes)

2006-04-01 16:50:29
(About the <toplabel> thread in SPF-discuss)  Wait a moment...

toplabel =
      ( *alphanum alpha *alphanum ) /
      ( 1*alphanum "-" *( alphanum / "-" ) alphanum )

...it's simple to add the "no single alpha" case to this beast:

| toplabel =
|       ( alpha 1*alphanum ) / ( 1*digit alpha *alphanum ) /
|       ( 1*alphanum "-" *( alphanum / "-" ) alphanum )

I'll propose that for USEFOR, it's clearer than the convoluted
syntax based on <label>.  It's also unambiguous for a parser -
credits to Matthew.van.Eerde, copy to USEFOR.

                              Bye, Frank


-------
Sender Policy Framework: http://www.openspf.org/
Archives at http://archives.listbox.com/spf-discuss/current/
To unsubscribe, change your address, or temporarily deactivate your 
subscription, 
please go to 
http://v2.listbox.com/member/?listname=spf-discuss(_at_)v2(_dot_)listbox(_dot_)com