xsd dsl examplke

This:

text {<?xml version="1.0" encoding="UTF-8"?>}
text {<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">}
define root {
   item+
}
define item {
   part1!
   part2?
   part3
}
define part1 xsd:string
define part2 xsd:decimal {This is optional}
extension part3 xsd:normalizedString {{attr1 {this is attr1}}} {
   Complex stuff
}
text "</xsd:schema>"


Becomes:

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
    <xsd:element name="root" type="rootType"/>
    <xsd:complexType name="rootType">
        <xsd:sequence>
            <xsd:element minOccurs="1" maxOccurs="unbounded" ref="item"/>
        </xsd:sequence>
    </xsd:complexType>
    <xsd:element name="item" type="itemType"/>
    <xsd:complexType name="itemType">
        <xsd:sequence>
            <xsd:element minOccurs="1" maxOccurs="1" ref="part1"/>
            <xsd:element minOccurs="0" maxOccurs="1" ref="part2"/>
            <xsd:element ref="part3"/>
        </xsd:sequence>
    </xsd:complexType>
    <xsd:element name="part1" type="xsd:string"/>
    <xsd:element name="part2" type="xsd:decimal">
        <xsd:annotation>
            <xsd:documentation>This is optional</xsd:documentation>
        </xsd:annotation>
    </xsd:element>
    <xsd:element name="part3" type="part3Type"/>
    <xsd:complexType name="part3Type">
        <xsd:annotation>
            <xsd:documentation>
   Complex stuff
</xsd:documentation>
        </xsd:annotation>
        <xsd:simpleContent>
            <xsd:extension base="xsd:normalizedString">
                <xsd:attribute name="attr1" use="optional">
                    <xsd:annotation>
                        <xsd:documentation>this is attr1</xsd:documentation>
                    </xsd:annotation>
                </xsd:attribute>
            </xsd:extension>
        </xsd:simpleContent>
    </xsd:complexType>
</xsd:schema>