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joecool2005

regular expression for empty attribute

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Hi,I have a tag in XML like this:<myemail email="john@hotmail.com" />and I define my regular expression to validate the email.But sometime the email attribute can be empty like this<myemail email="" />How can you define a regular expression for that situation?ThxJoe

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Hi,I tried the following and it seems that using type=string allows you to have empty attribute. (but if you change to integer, email can't be empty)

<xs:element name="myemail">	<xs:complexType>  <xs:attribute name="email" type="xs:string" use="required"/>	</xs:complexType></xs:element>

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