"Eric A. Hall" wrote:
> The specific concern I had is already addressed in nameprep so there > is no need for the exception. What I am concerned with is the use of domain name which consist entirely of punctuation, or in this case, which consist entirely of combining marks. These represent a rules problem with the principles behind the "safe-set". EG, we forbid domain names like ````````.com using U+0060, but ````````.com may be legal if the combining character U+0300 is used instead. I get lost in the shrubbery of specs, so can somebody tell me whether or not this is a valid concern? I can't tell for certain what happens at the end of nameprep with such a label. If this is a problem, a solution might be to change the prohibition against leading hyphen to a prohibition against leading hyphen and combining characters. -- Eric A. Hall http://www.ehsco.com/ Internet Core Protocols http://www.oreilly.com/catalog/coreprot/
