[XSD] Possible to ignore case in pattern restriction?

Hi,

Take a looke at this schema which defines a simpleType for email-addresses
Now i wonder if it's possible to have the pattern be case-IN-sensitive??

Normally I would do something like: ([a-z]{4}/i/)

But would that work (read is it supported by any w3 standard)??


<?xml version="1.0" encoding="iso-8859-1"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
	<xs:simpleType name="email">
		<xs:restriction base="xs:string">
			<xs:whiteSpace value='collapse'/>
			<xs:pattern value="(
				[a-z0-9]
				([a-z0-9_\.]*)
				@
				([a-z0-9_\.]*)
				([.]([a-z]{2}|
				(aero|arpa|biz|com|coop|edu|gov|info|int|mil|museum|name|net|org|pro)))
			)"/>
		</xs:restiction>
	</xs:simpleType>
</xs:schema>

If not then I foresee a typing hell makeing the domain names case-insensitive


/Rasmus

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