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I think you want:

Save the tags to filter by in state and simple filter your data source inline versus in the onChange callback of the dropdown component. The following destructures tag and dataSource from state, and defines a filter function to be used as array::filter callback. If tag is truthy then apply filter if tags match, otherwise return true to allow item to be passed through, i.e. unfiltered.

I think you would need to specifically exclude the namespaces you don't want in your output with the exclude-result-prefixes instruction.

Example :

You have to take into account the default namespace.

Add

I've reproduced your situation in a different ways and got things working in a both cases.

You didn't mention the exact steps you make to build a book using XMLMind XML Editor (XXE for short), but the following steps certainly worked well.

None 1: I've used XXE Professional Edition, but as I know the difference between versions is only in putting random character within text if generating PDF from Personal Edition.

Note 2: XXE says that Book chapters element is not allowed within you context. Despite that fact, the assembly can be generated successfully.

1. Open an assembly file in XXE.
2. Select Convert > Convert document > Convert to PDF.
3. Select a path to save pdf file and press OK button.

1. Use your exact files and DIR structure (I included my own .c file sample for my own test).

2. Use XXE assembly processor: http://www.xmlmind.com/xmleditor/assembly.shtml - it has the same codebase that XXE used for working with assemblies from XXE GUI.

3. Get docbook book file from assembly:assembly-1_0_2_01/bin/assembly -v assembly.xml docbook_book.xml In my test I've got the .c sample file included - that proves that assembly utility works well with XInclude.

4. Get .pdf manually: fop -c -xsl /fo/docbook.xsl -xml docbook_book.xml -pdf docbook_book.pdf

I've got the final result with .c sample included in both cases.

It is not working with namespaces because you have not accounted for the namespace in your XSLT. You XSLT is looking for an element called section in no namespace, and so will not find the element in the XML which is in a namespace.

If, indeed, only the section and title elements are in a namespace, and not book and chapter too, you can handle the namespace by declaring it with a prefix in the XSLT like so:

The problem in your code snippet is that you include (XInclude) article within chapter - not within book itself. And this is disallowed by DocBook schema (article can't be within chapter)

I.e.:

• book < article (or set < article) are allowed;
• BUT this (as in your sample): book < chapter <article is NOT

You just didn't see the full picture because of xinclude statement.

So the workaround is (compare these two snippets):

Yours:

You can use (XSLT 2 and later) xpath-default-namespace="http://docbook.org/ns/docbook" on your xsl:stylesheet if you want your pattern and expressions like procedure to match/select elements in that namespace. Otherwise procedure matches/selects elements of that name in no namespace.

An xmlns="http://docbook.org/ns/docbook" in the stylesheet only serves to put the result elements (like the orderedlist in your sample) into that namespace.

You have to declare the namespace in your XSLT and use it: