Does a combining sequence inherit the bicameral characteristic of the leading letter ?
For example,
can be lowercased into ? Then, ==> ?
... ==> ... ? I am not sure whether it can be.
Can be lowercased into or not?
has no combined form , but has as its lowercase form
due to its language context in turkish and azerbaijani.
Is this case just an exception ?
Soobok Lee
----- Original Message -----
From: "Eric A. Hall"
To: "Kenneth Whistler" ; ;
Sent: Friday, November 23, 2001 1:33 AM
Subject: Re: Combining characters (was: Re: [idn] hostname historyhell)
>
> "Eric A. Hall" wrote:
>
> > The specific concern I had is already addressed in nameprep so there
> > is no need for the exception.
>
> What I am concerned with is the use of domain name which consist entirely
> of punctuation, or in this case, which consist entirely of combining
> marks. These represent a rules problem with the principles behind the
> "safe-set". EG, we forbid domain names like ````````.com using U+0060, but
> ````````.com may be legal if the combining character U+0300 is used
> instead.
>
> I get lost in the shrubbery of specs, so can somebody tell me whether or
> not this is a valid concern? I can't tell for certain what happens at the
> end of nameprep with such a label.
>
> If this is a problem, a solution might be to change the prohibition
> against leading hyphen to a prohibition against leading hyphen and
> combining characters.
>
> --
> Eric A. Hall http://www.ehsco.com/
> Internet Core Protocols http://www.oreilly.com/catalog/coreprot/
>
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