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> Do you have to use a regular expression? I note that the Schema datatypes
> spec says "Not-a-number equals itself and is greater than all float
values,
> including positive infinity."
>
> Perhaps a maxInclusive of "INF"? (Disclaimer: haven't tried it)
Unfortunately this should work but is unreliable. XSV raises the error
<schemaError char="9" line="12" phase="instance"
resource="file:///C://itest.xsd">facet maxExclusive value not
a valid double literal: NaN</schemaError>
In Topologi (based on MSXML4) you can get it working but it is backwards--
MSXML4 orders NaN as the *lowest* / *least* value... not the greatest. So:
<!-- Root element declaration -->
<element name="foo">
<simpleType>
<restriction base="double">
<minExclusive value="NaN" />
</restriction>
</simpleType>
</element>
Works-- but
<!-- Root element declaration -->
<element name="foo">
<simpleType>
<restriction base="double">
<maxExclusive value="NaN" />
</restriction>
</simpleType>
</element>
does not. Haven't tried xerces or MSV yet...
Cheers,
Jeff Rafter
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