Re: Help: Validate Domain Name by Regular Express

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Donovan Brooke wrote:
> error in translation.
>
> I get the same domain for:
> seamonkey
> firefox
> googlechrome
> safari
>
> but yes, the actual square root character appears in safari only.
>
> Interesting!

"Although the Domain Name System supports non-ASCII characters,
applications such as e-mail and web browsers restrict the characters
which can be used as domain names for purposes such as a
hostname. Strictly speaking it is the network protocols these
applications use that have restrictions on the characters which can be
used in domain names, not the applications that have these limitations
or the DNS itself. To retain backwards compatibility with the installed
base the IETF IDNA Working Group decided that internationalized domain
names should be converted to a suitable ASCII-based form that could be
handled by web browsers and other user applications."

(http://en.wikipedia.org/wiki/Internationalized_domain_name#Internationalizing_Domain_Names_in_Applications)

-- 
Gary        Please do NOT send me 'courtesy' replies off-list.


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