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Re: [idn] case preservation

To: "D. J. Bernstein" <djb@cr.yp.to>
Subject: Re: [idn] case preservation
From: Dave Crocker <dhc@dcrocker.net>
Date: Tue, 09 Oct 2001 08:00:47 -0700
Cc: idn@ops.ietf.org<20011009004803.28618.qmail@cr.yp.to">20011009004803.28618.qmail@cr.yp.to><00b501c15078$afb77ce0$ec1bd9d2@temp><20011009043734.15576.qmail@cr.yp.to">20011009043734.15576.qmail@cr.yp.to><58648759.1002614060@localhost">58648759.1002614060@localhost>

At 11:51 PM 10/8/2001, D. J. Bernstein wrote:
>A properly typeset uppercase Alpha is IDENTICAL to a properly typeset
>uppercase A, just as a properly typeset tab is IDENTICAL to a properly
>typeset sequence of spaces. It is simply NOT POSSIBLE to tell the
>difference between AOL.com and AOL.com.

Thank you for providing an example that very nicely shows this to be an old 
problem  for which there is no known solution.

Feel free to offer text to add to the specification, if you feel it will 
solve the problem.

d/

----------
Dave Crocker  <mailto:dcrocker@brandenburg.com>
Brandenburg InternetWorking  <http://www.brandenburg.com>
tel +1.408.246.8253;  fax +1.408.273.6464

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