Re: [I18nrp] Mappings for IDNA2008 ?

Martin J. Dürst <duerst@it.aoyama.ac.jp> Fri, 08 February 2019 08:20 UTC

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To: =?utf-8?B?UGF0cmlrIEbDpGx0c3Ryw7Zt?= <paf=40frobbit.se@dmarc.ietf.org>, Asmus Freytag <asmusf@ix.netcom.com>
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Thread-Topic: [I18nrp] Mappings for IDNA2008 ?
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Subject: Re: [I18nrp] Mappings for IDNA2008 ?
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Hello Patrik, others,

On 2019/02/08 16:56, Patrik Fältström wrote:
> On 5 Feb 2019, at 18:09, Asmus Freytag wrote:
> 
>> OK, if you make the choice that all of this should happen, then what?
>>
>> You'll have to use some tables / algorithm to do the mapping. Even when locale dependent (notionally) you have 90%+ of all cases that are unchanged and some small subset would get adjusted (tailored).
>>
>> That makes providing generic mapping tables useful.
> 
> I can as well say it is completely useless for the cases where the mapping *IS* special.

I don't understand the last sentence. If we take the case of Turkish, 
then the generic mapping tables are useful because once we have them, a 
suitable Turkish mapping can be defined as a small delta (e.g. a small 
preprocessing step) to the generic mapping tables.

Regards,    Martin.