Nonspacing marks and the no-break space

From: Andreas Prilop (prilop4321@trashmail.net)
Date: Wed Apr 28 2010 - 09:49:26 CDT

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Sections 2.11 and 7.9 of the Unicode Standard state that
nonspacing combining marks shall be combined with the
no-break space U+00A0 in order to show them in isolation.

Internet Explorer 7 did so for HTML documents.

It seems to me that Internet Explorer 8 does not combine
the no-break space with at least Arabic nonspacing marks.
The following two lines should have the same length:

ا ْ ْ ْ ْ ْ ْ ْ ْ ْ ْ ْ ْ ْ ْ ْ ْ ْ ْ ْ ْا
ا ا

If I'm not mistaken you can check this with a webbrowser at
http://www.unicode.org/mail-arch/unicode-ml/y2010-m04/0063.html

Can you confirm this behaviour and perhaps give an explanation?

-- 
From the New World:
http://www.google.co.uk/search?ie=ISO-8859-2&q=Dvofi%E1k

Next message: N. Ganesan: "Halant - can it be called a "Linguistic Zero" (Panini)?"
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