Minimal IDNAbis requirements

[Stephane Bortzmeyer]

On Tue, Jan 01, 2008 at 12:53:21PM -0800,
 Erik van der Poel <erikv at google.com> wrote 
 a message of 115 lines which said:

> For U-labels, string lengths are numbers of codepoints, I suppose. I
> wonder if it is necessary to explicitly state that. I.e. as opposed
> to the number of bytes in the UTF-8 encoding of the U-label, or the
> UTF-16 encoding, etc.

Since Unicode labels are never put in the DNS itself, do we really
need to enforce the DNS size limit?