<div class="gmail_quote">2009/3/2 Erik van der Poel <span dir="ltr"><<a href="mailto:erikv@google.com">erikv@google.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="Ih2E3d">On Mon, Mar 2, 2009 at 5:30 AM, JFC Morfin <<a href="mailto:jefsey@jefsey.com">jefsey@jefsey.com</a>> wrote:<br>
> 2009/3/1 Erik van der Poel <<a href="mailto:erikv@google.com">erikv@google.com</a>><br>
>> Eszett, ZWJ and ZWNJ should not be<br>
>> placed in the xn-- space. They should receive a different prefix. The<br>
>> local mappers should try both (e.g. Eszett with new prefix, and ss<br>
>> with or without xn--, depending on the rest of the string).<br>
><br>
> And what if you have Eszett and ZWJ in the same label?<br>
<br>
</div>Some registries might disallow Eszett and ZWJ in the same label, and<br>
IDNA2008 might not allow Eszett and ZWJ to be adjacent due to<br>
contextual rules for ZWJ, but they could receive the same prefix, say,<br>
xo--.<br>
<div class="Ih2E3d"><br>
>> And if the French really want to distinguish ecole and Ecole, they<br>
>> will not only need a different prefix, but also something other than<br>
>> Punycode (as far as I can tell).<br>
><br>
> really?<br>
> why?<br>
<br>
</div>The current DNS does not allow <a href="http://ecole.fr" target="_blank">ecole.fr</a> and Ecole.fr to resolve to<br>
different IP addresses. So you will have to encode these somehow. This<br>
means that you need a prefix. You cannot use xn-- because that is for<br>
Punycode. You cannot use Punycode because it does not encode ASCII. It<br>
just copies the ASCII characters directly into the output. For<br>
example, français is encoded as franais-xxa. Note the directly copied<br>
ASCII characters "franais". Appendix A of Punycode (RFC 3492) allows<br>
you to encode upper/lower case. So you might have xn--Franais-xxa.fr,<br>
but this would resolve to the same IP address as <a href="http://xn--franais-xxa.fr" target="_blank">xn--franais-xxa.fr</a>.<br>
So you need something other than Punycode that does not copy ASCII<br>
characters directly to the output.<br>
<font color="#888888"><br>
Erik<br>
</font></blockquote></div><br><div>No. If I include bigtitles as TEMPORARY (cf. my other suggestion), "Français" would become "<a href="http://xx--ranais-bfcdq.fr">xx--ranais-bfcdq.fr</a>" but "français" would be "<a href="http://xx-franais-xxa.fr">xx-franais-xxa.fr</a>". </div>
<div>jfc</div>