Martin Duerst wrote: > At 15:00 08/04/10, Felix Sasaki wrote: > >> Hi Phil, >> >> I was looking into this section in your attachment: >> >> [ >> 2.1.3.4 Internationalized Domain Names >> * Internationalized Domain Names (IDNs) should be converted from Punycode [RFC3492] into their UTF-8 string representations. So that, for example: >> http://www.xn--exmple-jua.org/ >> becomes >> http://www.ex蚓ple.org/. >> ] >> >> If you have >> http://www.xn--exmpless-jua.org/ >> It is not possible to decide whether it should become >> http://www.ex蚓pless.org/ >> or >> http://www.ex蚓ple゜.org/ >> since "ss" in the Punycode string could have been originally "ss" or "゜". >> > > Not exactly. IDNA defines a toASCII operation and a toUNICODE operation. > The toUNICODE operation is well-defined, and produces "ss" in the above > case. > many thanks for the clarification, Martin. What I wanted to say is that in the above case you don't know what xn--exmpless-jua was generated from, a string with ss or Eszett. Felix > What may be more of a complication is that the new proposals for the > revision of the IDNA spec (IDNAbis) are proposing to move the mapping > step out of the protocol definition. This at least leads to less > certainity; I'm not sure how exactly it would affect POWDER.Received on Thursday, 10 April 2008 11:47:20 GMT
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