如何使用 xml 模式重新定义 xhtml body 元素？

发布于 2024-12-09 02:53:34 字数 1523 浏览 0 评论 0原文

这是我的第一个问题，已经得到解答：XML 架构 - 是否可以在整个文档中仅允许某个元素出现一次？

现在我想重新定义 xhtml 的 body 元素并为其添加唯一约束。这是我的 redefine.xsd 中的 xhtml-struct-1.xsd 内的定义，

 <xs:group
        name="xhtml.html.content">
        <xs:sequence>
            <xs:element
                name="head"
                type="xhtml.head.type"/>
            <xs:element
                name="body"
                type="xhtml.body.type"/>
        </xs:sequence>
    </xs:group>

我尝试了以下操作：

<xs:redefine schemaLocation="http://www.w3.org/MarkUp/SCHEMA/xhtml11.xsd">
  <xs:group name="xhtml.html.content">
    <xs:sequence>
      <xs:element name="head" type="xhtml.head.type" />
      <xs:element name="body" type="xhtml.body.type" >
                <xs:unique name="highlander">
                     <xs:selector xpath=".//mylang:content"/>
                     <xs:field xpath="."/>
                </xs:unique>
            </xs:element>
        </xs:sequence>
    </xs:group>
</xs:redefine>

org.xml.sax.SAXParseException;系统ID：文件：xhtml-struct-1.xsd；行号：113；列数：35； mg-props- Correct.2：圆形检测到组“:xhtml.html.content_fn3dktizrknc9pi”的定义。递归地跟踪粒子的 {term} 值会导致其 {term} 是群本身的粒子。

我尝试了许多其他变体，但总是遇到我不明白的奇怪错误。如何使用 XML 架构重新定义 xhtml body 元素？

原文

This was my first question, which was answered already: XML Schema - Is it possible to allow a certain element only once in the whole document?

Now I want to redefine body element of xhtml and add a unique constraint to it. This is the definition inside xhtml-struct-1.xsd

 <xs:group
        name="xhtml.html.content">
        <xs:sequence>
            <xs:element
                name="head"
                type="xhtml.head.type"/>
            <xs:element
                name="body"
                type="xhtml.body.type"/>
        </xs:sequence>
    </xs:group>

in my redefine.xsd I tried this:

<xs:redefine schemaLocation="http://www.w3.org/MarkUp/SCHEMA/xhtml11.xsd">
  <xs:group name="xhtml.html.content">
    <xs:sequence>
      <xs:element name="head" type="xhtml.head.type" />
      <xs:element name="body" type="xhtml.body.type" >
                <xs:unique name="highlander">
                     <xs:selector xpath=".//mylang:content"/>
                     <xs:field xpath="."/>
                </xs:unique>
            </xs:element>
        </xs:sequence>
    </xs:group>
</xs:redefine>

org.xml.sax.SAXParseException; systemId:
file:xhtml-struct-1.xsd;
lineNumber: 113; columnNumber: 35; mg-props-correct.2: Circular
definitions detected for group ':xhtml.html.content_fn3dktizrknc9pi'.
Recursively following the {term} values of the particles leads to a
particle whose {term} is the group itself.

I treid dozens of other variants but I always get strange errors which i don't understand. How can I redefine a xhtml body element with XML Schema?

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天涯沦落人 2024-12-16 02:53:34

重新定义群体的工作方式有所不同。

<xs:redefine schemaLocation="http://www.w3.org/MarkUp/SCHEMA/xhtml11.xsd">
  <xs:group name="xhtml.html.content">
    <xs:sequence>
      <xs:group ref="xhtml.html.content">
      ... additional elements/group to be in this sequence defined here ...
    </xs:sequence>
  </xs:group>
</xs:redefine>

看起来您想重新定义类型“xhtml.body.type”，您应该尝试这样做，而不是重新定义组“xhtml.html.content”。

也许这些片段有帮助：

http://www.datypic.com/books/defxmlschema/chapter18。 html

Redefining groups is working differently.

<xs:redefine schemaLocation="http://www.w3.org/MarkUp/SCHEMA/xhtml11.xsd">
  <xs:group name="xhtml.html.content">
    <xs:sequence>
      <xs:group ref="xhtml.html.content">
      ... additional elements/group to be in this sequence defined here ...
    </xs:sequence>
  </xs:group>
</xs:redefine>

It looks like you want to redefine type "xhtml.body.type" and you should try to do that instead of redefining group "xhtml.html.content".

Maybe these snippets help:

http://www.datypic.com/books/defxmlschema/chapter18.html

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