\d meaning (Was: Re: xhtml.xsd error?)

On the topic of matching numbers...

The spec says that \d is equivalent to \p{Nd}.

By my reading of the Unicode tables, \p{Nd} not only includes the characters
0-9, but also equivalents in other languages, such as "0660;ARABIC-INDIC
DIGIT ZERO;Nd", "06F0;EXTENDED ARABIC-INDIC DIGIT ZERO;Nd;",
"0966;DEVANAGARI DIGIT ZERO;Nd;", "09E6;BENGALI DIGIT ZERO;Nd;",
"0A66;GURMUKHI DIGIT ZERO;Nd;" and so on and so on.

Does this mean that for a lot of business logic cases people might be best
advised using [0-9] in their patterns rather than \d?

And for my illumination, I assume most peoples of the world (that are likely
to come into contact with XML either directly or indirectly) would be
familiar with the digits 0-9 from the international language of mathematics.
Is this the case?

Thanks,

Pete.
--
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Pete Cordell
Tech-Know-Ware Ltd
                         for XML to C++ data binding visit
                         http://www.tech-know-ware.com/lmx
                         (or http://www.xml2cpp.com)
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