Sept. 13, 2017
5:50 a.m.
On Wed, Sep 13, 2017 at 12:01:07AM +0200, Chaals McCathie Nevile wrote:
I would generally like validation to take place after punycode conversion. First because there are strings that match the regex bu not punycode constraints.
In an IDNA2008 world, there are no "Punycode constraints". A U-label corresponds to exactly one A-label, and conversely. You can do it on either side of the conversion divide. Of course, if you're using the broken-for-years IDNA2003, you have a problem. A -- Andrew Sullivan ajs@anvilwalrusden.com