Some reading on IRIs and IDNs

[Sean Conner]

It was thus said that the Great Stephane Bortzmeyer once stated:
> On Thu, Dec 10, 2020 at 08:12:04PM -0500,
>  Gary Johnson <lambdatronic at disroot.org> wrote 
>  a message of 69 lines which said:
> 
> > 1. Punycode the hostname.
> 
> Not always, for the reasons explained in RFC 6055. To summarize: the
> application does not always know which name resolution system will be used.

  Yes, this is why I hata the incessent talking.  If you bothered to try it
on a few systems, you may have encountered *not* encoding with punycode
*also* fails.  I know, because I tried on a few systems I have access to,
and they all failed to look up "café.mozz.us" (yes, via getaddrinfo() even). 
They all worked when I looked up "xn--caf-dma.mozz.us".

  So now that I've injected some ugly reality in to a nice theoretical
discussion, what's next?

  -spc