Re: [I18nrp] Mappings for IDNA2008 ?

Asmus Freytag <> Fri, 08 February 2019 19:02 UTC

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From: Asmus Freytag <>
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Date: Fri, 8 Feb 2019 11:02:24 -0800
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Subject: Re: [I18nrp] Mappings for IDNA2008 ?
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On 2/8/2019 9:58 AM, John Levine wrote:
> In article <> you write:
>> 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.
> That would be great if the small delta tables actually exist.  But
> they don't.  It's been a decade since IDNA2008 and I have yet to see
> any language-specific mappings at all.

Meaning you hoped to get something for free and find you have to pay for it.

> I agree that the mapping tables for languages written in Latin
> characters will mostly be the same, but it's the differences that
> cause problems.  Software that works most of the time not the same as
> software that works.

Curious, how many Turkish IDNs exist (i.e. those with dotless i)?