[UA-discuss] Mixing between RTL and LTR scripts

[Andrew Sullivan]

Hi,

In the same label, it's mostly a bad idea (there's some discussion of this 
in the bidi document). But my point was about domain names, not individual 
labels.

A

--
Please excuse my clumbsy thums

On May 5, 2018 04:29:05 Abdalmonem Tharwat Galila <agalila at mcit.gov.eg> wrote:
> Hi Andrew, Thanks for your below reply , I spend a lot of time try to do 
> some mixing examples between RTL and LTR within the same label, what I got  
> is strange and unclear
> Label as a result for ex.
> عبدالمنعم-Abdo@سجل.مصر
> Abdoعبدالمنعم.مصر
> … etc
> Many issues you cannot imagine , also another thing using dot in RTL 
> context or in LTR context will give you different labels although they must 
> be the same.
> To be away from the display issues we get if we mix RTL and LTR code points
>
> in the same labels.
>
> Take a look here link.
>
>
>
> -----Original Message-----
> From: UA-discuss [mailto:ua-discuss-bounces at icann.org] On Behalf Of Andrew 
> Sullivan
> Sent: Friday, May 04, 2018 2:57 PM
> To: John Levine <john.levine at standcore.com>; Abdalmonem Tharwat Galila 
> <agalila at mcit.gov.eg>
> Cc: Ahmed Bakhat Masood (ahmedbakhat at pta.gov.pk) <ahmedbakhat at pta.gov.pk>; 
> ua-discuss at icann.org; Ahmed Bakhat (ahmedbakhat at yahoo.com) 
> <ahmedbakhat at yahoo.com>
> Subject: Re: [UA-discuss] Mixing between RTL and LTR scripts
> Also I don't know how you disallow script mixing for domain names. IDNA is 
> label by label. The DNS is distributed, so there's no way to prevent 
> mixing, is there?
>
> A
>
> --
> Please excuse my clumbsy thums
> ----------
> On May 4, 2018 05:36:02 "John Levine" <john.levine at standcore.com> wrote:
>
>>>                I hope you all doing well, after back to TF-AIDN "Task Force Of Arabic
>
>>>                IDNs", I got the following regards to mixing LTR and RTL texts within the
>
>>>                same label.
>>> -          Mixing between different scripts is not allowed for domain names
>
>>> and email addresses
>>> -          Numbers at the middle or at the end of the RTL domain name is
>
>>> allowed.
>>>
>>> To be away from the display issues we get if we mix RTL and LTR code points
>
>>> in the same labels.
>>
>> Thanks.  I think this clarifies the point that we have no advice on
>> displaying e-mail addresses, since mailboxes are not domain names and are
>> not labels and are not subject to IDNA2008.
>>
>> Regards,
>> John Levine, john.levine at standcore.com
>> Standcore LLC

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