Schema specification in root element only

Move all prefix declarations to the root element, or allow control over prefix setting (disable prefix insertion at the place of use).

example model:

@Serializable
@XmlSerialName("document", Namespaces.view, Namespaces.prefixView)
data class Document(
    val head: Head,
    val body: Body,
    val blocks: List<Block> = emptyList(),
    val nature: String? = null,
    val background: String? = null,
    val zoomable: Boolean? = null,
    @XmlOtherAttributes
    val other: Map<String, String> = emptyMap()
)

example structure:

    val document = Document(
        head = Head(
            variables = listOf(Variable("x", "internal"), Variable("y", "internal"),)
        ),
        body = Body(cdaTopic = "topic",
            elements = listOf(
                Div(listOf(If(condition = Expression("foo")))),
                Select(variable = "foo", elements = listOf(Select.Repeat(Repeat("test")))),
                Edit(Edit.Type.STRING, "foo"),
            )
        ),
        other = mapOf(Namespaces.xmlnsNaming.toCName() to Namespaces.naming)
    )

output:

<d:document xmlns:d="http://www.webui-ap.com/schemata/view/1.0" n:xmlns="http://www.webui-ap.com/schemata/naming/1.0">
  <d:head>
    <d:variable name="x" type="internal"/>
    <d:variable name="y" type="internal"/>
  </d:head>
  <d:body xmlns:n="http://www.webui-ap.com/schemata/naming/1.0" n:cda-topic="topic">
    <xhtml:div xmlns:xhtml="http://www.w3.org/1999/xhtml">
      <d:if condition="foo"/>
    </xhtml:div>
    <d:select variable="foo">
      <d:repeat from="test"/>
    </d:select>
    <d:edit variable="foo"/>
  </d:body>
</d:document>

Desired view

<d:document xmlns:d="http://www.webui-ap.com/schemata/view/1.0"
            n:xmlns="http://www.webui-ap.com/schemata/naming/1.0"
            xmlns:xhtml="http://www.w3.org/1999/xhtml">
    <d:head>
        <d:variable name="x" type="internal"/>
        <d:variable name="y" type="internal"/>
    </d:head>
    <d:body n:cda-topic="topic">
        <xhtml:div>
            <d:if condition="foo"/>
        </xhtml:div>
        <d:select variable="foo">
            <d:repeat from="test"/>
        </d:select>
        <d:edit variable="foo"/>
    </d:body>
</d:document>

[pdvrieze]

Btw. if you want to put something in the default namespace you can use the empty string for both. You can also set a namespace for unprefixed elements by specifying the prefix to be the empty string. On prefixes, note that the library will try to reuse prefixes before using the ones specified.

[pdvrieze]

I’ve fixed this (and #107 that was triggered upon solving the base problem). The problem was an infinite recursion in the descriptor tree that wasn’t considered possible (and thus not detected) - to collate namespace declarations the code walks the entire tree.