The XML processor omits namespaces

Given an XML document with namespaces, the converted JSON via the XML processor lost namespace info:

<root xmlns:dc="http://my.namespace/dc" xmlns:ot="http://my.namespace/ot">
  <dc:title>This is a title</dc:title>
  <dc:description tone="boring">This is a description</dc:description>
  <ot:elements id="1">foo1</ot:elements>
  <ot:elements id="2">foo2</ot:elements>
  <ot:elements>foo3</ot:elements>
</root>

yields:

{
  "root":{
    "title":"This is a title",
    "description":{
      "#text":"This is a description",
      "-tone":"boring"
    },
    "elements":[
      {"#text":"foo1","-id":"1"},
      {"#text":"foo2","-id":"2"},
      "foo3"
    ]
  }
}

This is somewhat unfortunate since the original XML document cannot be reconstructed from the JSON output.

@mihaitodor told me on Discord that this is due to the current implementation some time ago (I assume encoding/xml), but I wanted to at least leave this issue in case something changes. Here is a related Stackoverflow question: https://stackoverflow.com/questions/79635707/encoding-xml-retaining-xml-namespace-prefixes-when-encoding-decoding . Maybe if the referenced feature https://go-review.googlesource.com/c/go/+/355353 gets merged in Go, an option could be added?

Thank you

Start by tracing the XML processor and its use of Go's encoding/xml, then review the linked Go proposal about retaining namespace prefixes. Done means defining and implementing a feasible approach that preserves namespace information in the JSON output, with coverage for the namespaced XML example.