/// <summary>
/// Gets path of the xml element start tag that the specified
/// <paramref name="index"/> is currently inside.
/// </summary>
/// <remarks>If the index outside the start tag then an empty path
/// is returned.</remarks>
public static XmlElementPath GetActiveElementStartPath(string xml, int index)
{
XmlElementPath path = new XmlElementPath();
string elementText = GetActiveElementStartText(xml, index);
if (elementText != null)
{
QualifiedName elementName = GetElementName(elementText);
NamespaceURI elementNamespace = GetElementNamespace(elementText);
IDictionary <string, string> namespaces;
path = GetParentElementPathCore(xml.Substring(0, index), out namespaces);
string namespaceUri;
if (elementNamespace.Namespace.Length == 0 &&
!string.IsNullOrEmpty(elementName.Prefix) &&
namespaces != null &&
namespaces.TryGetValue(elementName.Prefix, out namespaceUri))
{
elementNamespace.Namespace = namespaceUri;
elementNamespace.Prefix = elementName.Prefix;
}
path.Elements.Add(new QualifiedName(elementName.Name, elementNamespace.Namespace, elementNamespace.Prefix));
path.Compact(elementNamespace.Namespace);
}
return(path);
}
/// <summary>
/// Gets the active element path given the element text.
/// </summary>
static XmlElementPath GetActiveElementStartPath(string xml, int index, string elementText)
{
QualifiedName elementName = GetElementName(elementText);
NamespaceURI elementNamespace = GetElementNamespace(elementText);
XmlElementPath path = GetParentElementPath(xml.Substring(0, index));
if (elementNamespace.Namespace.Length == 0)
{
if (path.Elements.Count > 0)
{
QualifiedName parentName = path.Elements[path.Elements.Count - 1];
elementNamespace.Namespace = parentName.Namespace;
elementNamespace.Prefix = parentName.Prefix;
}
}
path.Elements.Add(new QualifiedName(elementName.Name, elementNamespace.Namespace, elementNamespace.Prefix));
path.Compact();
return(path);
}
