xml架构验证单个和多个标签

Question

如何构建模式以验证可以包含组内标记的单个和多个实例的xml？

CO和AS中的标签可以按任何顺序出现（删除序列作为选项）。 CUST.NAME，FED.ID和CUST.ADDRESS1只能在CO中出现一次.AS是无界的（删除所有选项）。 实施例

<FormData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="Stack.xsd">
  <CO>
    <CUST.NAME>mlb2</CUST.NAME>
    <FED.ID></FED.ID>
    <CUST.ADDRESS1>abc st</CUST.ADDRESS1>
    <AS>
      <EQUIP.COST>1.00</EQUIP.COST>
      <EQUIP.DESC>asDesc</EQUIP.DESC>
      <MODEL>UpdFromUDAction</MODEL>
    </AS>
    <AS>
      <EQUIP.COST>1.00</EQUIP.COST>
      <EQUIP.DESC>asDesc</EQUIP.DESC>
      <MODEL>UpdFromUDAction</MODEL>
    </AS>
  </CO>
</FormData>

这是我到目前为止的模式，但如果存在重复的CUST.NAME，FED.ID或CUST.ADDRESS1标记，它不会失败。 使用

<xsd:choice maxOccurs="unbounded">

在COType中，因为可能存在其他几个标记（例如CUST.ZIP）。 架构：

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <xsd:simpleType name="CO.FED.IDType">
    <xsd:restriction base="xsd:string">
      <xsd:maxLength value="20" />
    </xsd:restriction>
  </xsd:simpleType>
  <xsd:simpleType name="CO.CUST.NAMEType">
    <xsd:restriction base="xsd:string">
      <xsd:maxLength value="150" />
    </xsd:restriction>
  </xsd:simpleType>
  <xsd:simpleType name="CO.CUST.ADDRESS1Type">
    <xsd:restriction base="xsd:string">
      <xsd:maxLength value="50" />
    </xsd:restriction>
  </xsd:simpleType>
  <xsd:simpleType name="AS.EQUIP.COSTType">
    <xsd:restriction base="xsd:decimal">
      <xsd:totalDigits value="14" />
    </xsd:restriction>
  </xsd:simpleType>
  <xsd:simpleType name="AS.EQUIP.DESCType">
    <xsd:restriction base="xsd:string">
      <xsd:maxLength value="40" />
    </xsd:restriction>
  </xsd:simpleType>
  <xsd:simpleType name="AS.MODELType">
    <xsd:restriction base="xsd:string">
      <xsd:maxLength value="20" />
    </xsd:restriction>
  </xsd:simpleType>
  <xsd:complexType name="COType">
    <xsd:choice maxOccurs="unbounded">
      <xsd:element name="FED.ID" type="CO.FED.IDType" minOccurs="0" nillable="true" maxOccurs="1" />
      <xsd:element name="CUST.NAME" type="CO.CUST.NAMEType" minOccurs="0" nillable="true" maxOccurs="1" />
      <xsd:element name="CUST.ADDRESS1" type="CO.CUST.ADDRESS1Type" minOccurs="0" nillable="true" maxOccurs="1" />
      <xsd:element name="AS" type="ASType" minOccurs="0" maxOccurs="unbounded" />
    </xsd:choice>
  </xsd:complexType>
  <xsd:complexType name="ASType">
    <xsd:all>
      <xsd:element name="MODEL" type="AS.MODELType" minOccurs="0" nillable="true" maxOccurs="1" />
      <xsd:element name="EQUIP.COST" type="AS.EQUIP.COSTType" minOccurs="0" nillable="true" maxOccurs="1" />
      <xsd:element name="EQUIP.DESC" type="AS.EQUIP.DESCType" minOccurs="0" nillable="true" maxOccurs="1" />
    </xsd:all>
  </xsd:complexType>
  <xsd:complexType name="FormDataType">
    <xsd:sequence minOccurs="0" maxOccurs="1">
      <xsd:element name="CO" type="COType" minOccurs="1" maxOccurs="1" />
    </xsd:sequence>
  </xsd:complexType>
  <xsd:element name="FormData" type="FormDataType" />
</xsd:schema>