namespaces property

@override Iterable<XmlNamespace> get namespaces

Return the in-scope namespaces of this node.

Implementation

@override
Iterable<XmlNamespace> get namespaces sync* {
  final prefixes = <String>{};
  for (XmlNode? current = this; current != null; current = current.parent) {
    if (current is XmlElement) {
      for (final attribute in current.attributes) {
        if (attribute.name.prefix == ns.xmlns) {
          if (prefixes.add(attribute.name.local) &&
              attribute.value.isNotEmpty) {
            yield XmlNamespace(attribute.name.local, attribute.value)
              ..attachParent(current);
          }
        } else if (attribute.name.local == ns.xmlns &&
            attribute.name.prefix == null) {
          if (prefixes.add('') && attribute.value.isNotEmpty) {
            yield XmlNamespace('', attribute.value)..attachParent(current);
          }
        }
      }
    }
  }
  if (prefixes.add(ns.xml)) {
    yield XmlNamespace(ns.xml, ns.xmlUri)..attachParent(root);
  }
}