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File: Schema.xsd
<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.java2java.com" xmlns="http://www.java2java.com"
elementFormDefault="qualified">
<xs:simpleType name="zipcodeType">
<xs:restriction base="xs:string">
<xs:pattern value="\d{5}(-\d{4})?" />
</xs:restriction>
</xs:simpleType>
<xs:element name="zipcode" type="zipcodeType" />
</xs:schema>
File: Data.xml (Both of these zipcode elements are valid.)
<?xml version="1.0"?>
<zipcode>11111</zipcode>
<zipcode>11111-0987</zipcode>
File: Data.xml (Both of these zipcode elements are invalid.)
<?xml version="1.0"?>
<zipcode>1111-12349</zipcode>
<zipcode>111001</zipcode>
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