> On 11 dec 2014, at 17:43, Peter Saint-Andre - &yet <[email protected]> wrote: > > On 12/10/14, 11:22 PM, Patrik Fältström wrote: >> >>> On 11 dec 2014, at 05:36, Peter Saint-Andre - &yet >>> <[email protected]> wrote: >>> >>> Are you saying that there are code points that match, say, the >>> LetterDigits category ("A") and the IgnorableProperties category >>> ("C") and the OldHangulJamo category ("I")? >> >> Yes. There are in fact two codepoints that matches all of A, C and I >> at the same time. U+115F and U+1160. >> >> Hope this below give you some data. The file allcodepoints.txt is one >> I have produced with one of the software packages I have written as >> part of my role as appointed expert re. IANA and IDNA. The file is in >> this example generated for Unicode 7.0.0. > > That's great, thank you. > > Although it's good to know about this overlap, I am wondering if in practice > it matters because in both IDNA2008 and PRECIS we specify the order of > operations. Do you think we need to have an informational note about this in > the framework, though?
Not as long as the _result_ of the actions you suggest leads to a stable result. I.e. either your rules are stable (and leads to stable result) or not. Clarifying language that explain is not what you need in this case. Either the rules are clean or not. Patrik
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