Function restoreAttrNamespaces

encoding/xml/xml_decoder.go:51–77

restoreAttrNamespaces update XML attributes to restore the short namespaces found within the raw XML document.

(node xml.StartElement)

// restoreAttrNamespaces update XML attributes to restore the short namespaces found within
// the raw XML document.
func restoreAttrNamespaces(node xml.StartElement) xml.StartElement {
	if len(node.Attr) == 0 {
		return node
	}

	// Generate a mapping of XML namespace values to their short names.
	ns := map[string]string{}
	for _, a := range node.Attr {
		if a.Name.Space == "xmlns" {
			ns[a.Value] = a.Name.Local
			break
		}
	}

	for i, a := range node.Attr {
		if a.Name.Space == "xmlns" {
			continue
		}
		// By default, xml.Decoder will fully resolve these namespaces. So if you had <foo xmlns:bar=baz bar:bin=hi/>
		// then by default the second attribute would have the `Name.Space` resolved to `baz`. But we need it to
		// continue to resolve as `bar` so we can easily identify it later on.
		if v, ok := ns[node.Attr[i].Name.Space]; ok {
			node.Attr[i].Name.Space = v
		}
	}
	return node
}

// GetElement looks for the given tag name at the current level, and returns the element if found, and
// skipping over non-matching elements. Returns an error if the node is not found, or if an error occurs while walking