将 Docbook 5.0（包含部分内容）转换为 PDF
我试图使用 Xerces 2.7.1 和 Xalan 2.7.0 将带有碎片/部分包含的 docbook 文档转换为 pdf。
<xi:include href="./TestDocument.included.xml" xpointer="Section2"/>
直到我发现为了使用部分包含，必须使用 提供模式文件的可解析路径，这才起作用。
但对于 Docbook 5.0，人们应该/必须使用名称空间声明而不是 DOCTYPE。
<?xml version="1.0" encoding="UTF-8"?>
<article xmlns="http://docbook.org/ns/docbook" xmlns:xi="http://www.w3.org/2001/XInclude"
xml:lang="de" version="5.0" status="DRAFT" security="confidential">
如何向工具链提供 docbookxi.rng？
I was trying to convert a docbook document with fragmented/partial includes to pdf using Xerces 2.7.1 and Xalan 2.7.0.
<xi:include href="./TestDocument.included.xml" xpointer="Section2"/>
This did not work until I figured out that in order to use partial includes one has to provide a resolveable path to the schemafile using <!DOCTYPE ..>.
But with Docbook 5.0 one should/has to use namespace declarations instead of DOCTYPE.
<?xml version="1.0" encoding="UTF-8"?>
<article xmlns="http://docbook.org/ns/docbook" xmlns:xi="http://www.w3.org/2001/XInclude"
xml:lang="de" version="5.0" status="DRAFT" security="confidential">
How can I provide the docbookxi.rng to the toolchain?
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在这种情况下，没有办法“向工具链提供 docbookxi.rng”来提供帮助。甚至没有一种标准方法可以将 XML 文档与 RELAX NG 模式关联起来。
xmlns="http://docbook.org/ns/docbook"命名空间声明将文档标识为 DocBook 5（与version属性一起），但它并不说出有关架构位置的任何内容。像这样的一行，
意思是：“包含
TestDocument.included.xml的部分，该部分由具有 ID 类型属性且值为Section2的元素标识”。在 DocBook 5 中，
xml:id用于唯一标识符。该属性被识别为 ID 类型，并且不需要架构来确定其“ID 性”（请参阅 http://www.w3.org/TR/xml-id/）。因此，如果 DocBook 5 文档中有任何id属性，请将它们更改为xml:id。但是，您还应该确保 XML 解析器支持
xml:id。这里似乎缺少 Xerces，因此它可能仍然不适合您（请参阅 https:// issues.apache.org/jira/browse/XERCESJ-1113）。如果出现问题，您可以尝试使用 DocBook 5 DTD (是的，即使规范模式是用 RELAX NG 编写的，也存在 DTD）。该 DTD 将
xml:id声明为 ID 类型。There is no way to "provide the docbookxi.rng to the toolchain" that would help in this case. There isn't even a standard way to associate an XML document with a RELAX NG schema. The
xmlns="http://docbook.org/ns/docbook"namespace declaration identifies the document as DocBook 5 (together with theversionattribute), but it does not say anything about the location of the schema.A line like this one,
means: "include the portion of
TestDocument.included.xmlthat is identified by the element that has an attribute of type ID with a value ofSection2".In DocBook 5,
xml:idis used for unique identifiers. This attribute is recognized as being of type ID, and there is no need for a schema to determine its "ID-ness" (see http://www.w3.org/TR/xml-id/). So if you have anyidattributes in your DocBook 5 documents, change them toxml:id.Howewer, you should also make sure that the XML parser supports
xml:id. Xerces seems to be lacking here, so it might still not work for you (see https://issues.apache.org/jira/browse/XERCESJ-1113).If there are problems, you could try to use the DocBook 5 DTD (yes, there is a DTD even though the normative schema is written in RELAX NG). That DTD declares
xml:idto be of type ID.