Question

1.given:

<address>
<billing>
<street>westchester park dr</street>
<city>college park</city>
<state>MD</state>
<zip>21121</zip>
</billing>
<shipping>
<street>westchester park dr</street>
<city>college park</city>
<state>MD</state>
<zip>21121</zip>
</shipping>
</address>

create XSD that enforces xml as below:

zip code has to be 5 digit
the first character of zip code always has to start 1-9
state code has to be 2 characters
state characters has to be capital letter
street, city, state and zip has maintain sequence

Answer 1

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
<xs:element name="address">
<xs:complexType>
<xs:sequence>
<xs:element ref="billing"/>
<xs:element ref="shipping"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="billing">
<xs:complexType>
<xs:sequence>
<xs:element ref="street"/>
<xs:element ref="city"/>
<xs:element ref="state"/>
<xs:element ref="zip"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="shipping">
<xs:complexType>
<xs:sequence>
<xs:element ref="street"/>
<xs:element ref="city"/>
<xs:element ref="state"/>
<xs:element ref="zip"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="street" type="xs:string"/>
<xs:element name="city" type="xs:string"/>
<xs:element name="state" type="xs:NCName"/>
<xs:element name="zip" type="xs:integer"/>
<xs:simpleType name="zip">
<xs:restriction base="xs:string">
<xs:pattern value="[1-9][a-zA-Z0-9]{4}"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="state">
<xs:restriction base="xs:NCName">
<xs:pattern value="([A-Z]){2}"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>