VCard 2.1 - VCard 3.0

Hello

I want to my application can import data from vcard 2.1 ; so, how to manage the groups ? According to the rfc2426, a group name is 1*(ALPHA / DIGIT / "-"), followed by a punct. I read the vcard2.1 specifications, and i (mis)understood that a group is a character followed by a punct too... but there can be many groups on the same line, like this: a.b.c.FN:Foo Bar.

So, how must i support this feature ?

Regards,

-- 
Vincent