static XmlDiffPathNodeList SelectAttributes(XmlDiffViewElement parentElement, string path)
{
Debug.Assert(path[0] == '@');
int pos = 1;
XmlDiffPathNodeList nodeList = null;
for (;;)
{
string name = ReadAttrName(path, ref pos);
if (nodeList == null)
{
if (pos == path.Length)
{
nodeList = new XmlDiffPathSingleNodeList();
}
else
{
nodeList = new XmlDiffPathMultiNodeList();
}
}
XmlDiffViewAttribute attr = parentElement.GetAttribute(name);
if (attr == null)
{
OnNoMatchingNode(path);
}
nodeList.AddNode(attr);
if (pos == path.Length)
{
break;
}
else if (path[pos] == '|')
{
pos++;
if (path[pos] != '@')
{
OnInvalidExpression(path);
}
pos++;
}
else
{
OnInvalidExpression(path);
}
}
return(nodeList);
}
private static XmlDiffPathNodeList SelectAttributes(
XmlDiffViewElement parentElement,
string path)
{
Debug.Assert(path[0] == '@');
var pos = 1;
var diffPathNodeList = (XmlDiffPathNodeList)null;
while (true)
{
var name = XmlDiffPath.ReadAttrName(path, ref pos);
if (diffPathNodeList == null)
{
diffPathNodeList = pos != path.Length ? (XmlDiffPathNodeList) new XmlDiffPathMultiNodeList() : (XmlDiffPathNodeList) new XmlDiffPathSingleNodeList();
}
var attribute = parentElement.GetAttribute(name);
if (attribute == null)
{
XmlDiffPath.OnNoMatchingNode(path);
}
diffPathNodeList.AddNode((XmlDiffViewNode)attribute);
if (pos != path.Length)
{
if (path[pos] == '|')
{
var index = pos + 1;
if (path[index] != '@')
{
XmlDiffPath.OnInvalidExpression(path);
}
pos = index + 1;
}
else
{
XmlDiffPath.OnInvalidExpression(path);
}
}
else
{
break;
}
}
return(diffPathNodeList);
}
/// <summary>
/// Gets a list of attribute objects based on the location
/// specified.
/// </summary>
/// <param name="parentElement">Node at which to start the path search</param>
/// <param name="path">Proprietary alphanumeric path statement</param>
/// <returns>list of attribute objects</returns>
private static XmlDiffPathNodeList SelectAttributes(
XmlDiffViewElement parentElement,
string path) {
Debug.Assert(path[0] == '@');
int pos = 1;
XmlDiffPathNodeList nodeList = null;
for (; ; ) {
string name = ReadAttrName(path, ref pos);
if (nodeList == null) {
if (pos == path.Length) {
nodeList = new XmlDiffPathSingleNodeList();
} else {
nodeList = new XmlDiffPathMultiNodeList();
}
}
XmlDiffViewAttribute attr = parentElement.GetAttribute(name);
if (attr == null) {
OnNoMatchingNode(path);
}
nodeList.AddNode(attr);
if (pos == path.Length) {
break;
} else if (path[pos] == '|') {
pos++;
if (path[pos] != '@') {
OnInvalidExpression(path);
}
pos++;
} else {
OnInvalidExpression(path);
}
}
return nodeList;
}
