/// <summary>
/// Gets the active element path given the element text.
/// </summary>
static XmlElementPath GetActiveElementStartPath(string xml, int index, string elementText)
{
QualifiedName elementName = GetElementName(elementText);
if (elementName.IsEmpty)
{
return(new XmlElementPath());
}
XmlNamespace elementNamespace = GetElementNamespace(elementText);
XmlElementPath path = GetFullParentElementPath(xml.Substring(0, index));
// Try to get a namespace for the active element's prefix.
if (elementName.HasPrefix && !elementNamespace.HasName)
{
elementName.Namespace = path.GetNamespaceForPrefix(elementName.Prefix);
elementNamespace.Name = elementName.Namespace;
elementNamespace.Prefix = elementName.Prefix;
}
if (!elementNamespace.HasName)
{
if (path.Elements.Count > 0)
{
QualifiedName parentName = path.Elements[path.Elements.Count - 1];
elementNamespace.Name = parentName.Namespace;
elementNamespace.Prefix = parentName.Prefix;
}
}
path.AddElement(new QualifiedName(elementName.Name, elementNamespace));
return(path);
}
/// <summary>
/// Gets the name of the attribute and its prefix at the specified index. The index
/// can be anywhere inside the attribute name or in the attribute value.
/// The namespace for the element containing the attribute will also be determined
/// if the includeNamespace flag is set to true.
/// </summary>
public static QualifiedName GetQualifiedAttributeNameAtIndex(string xml, int index, bool includeNamespace)
{
string name = GetAttributeNameAtIndex(xml, index);
QualifiedName qualifiedName = QualifiedName.FromString(name);
if (!qualifiedName.IsEmpty && !qualifiedName.HasNamespace && includeNamespace)
{
XmlElementPath path = GetActiveElementStartPathAtIndex(xml, index);
qualifiedName.Namespace = path.GetNamespaceForPrefix(path.Elements.GetLastPrefix());
}
return(qualifiedName);
}
