<?xml version="1.0" encoding="utf-8"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"> <xs:include schemaLocation="common.xsd"/> <xs:include schemaLocation="common.header.xsd"/> <xs:include schemaLocation="common.table.xsd"/> <xs:include schemaLocation="common.image.xsd"/> <!-- Structure --> <xs:element name="chapter"> <xs:complexType> <xs:sequence> <xs:element ref="header"/> <xs:choice minOccurs="0" maxOccurs="unbounded"> <xs:element ref="block"/> <xs:element ref="quote"/> <xs:element ref="warning"/> <xs:element ref="note"/> <xs:element ref="br"/> <xs:element ref="image"/> <xs:element ref="marker"/> <xs:element ref="table"/> </xs:choice> <xs:element maxOccurs="unbounded" ref="section"/> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="section"> <xs:complexType> <xs:sequence> <xs:element minOccurs="0" maxOccurs="unbounded" ref="marker"/> <xs:element ref="title"/> <xs:choice minOccurs="0" maxOccurs="unbounded"> <xs:element ref="block"/> <xs:element ref="quote"/> <xs:element ref="warning"/> <xs:element ref="note"/> <xs:element ref="br"/> <xs:element ref="image"/> <xs:element ref="marker"/> <xs:element ref="table"/> <xs:element ref="section"/> </xs:choice> </xs:sequence> </xs:complexType> </xs:element> </xs:schema>