private void OnAddNode(
XmlElement diffgramElement,
string nodeTypeAttr,
XmlDiffViewParentNode sourceParent,
ref XmlDiffViewNode currentPosition)
{
var nodeType = (XmlNodeType)int.Parse(nodeTypeAttr);
var attribute1 = diffgramElement.GetAttribute("name");
var attribute2 = diffgramElement.GetAttribute("prefix");
var attribute3 = diffgramElement.GetAttribute("ns");
var attribute4 = diffgramElement.GetAttribute("opid");
var num = attribute4 == string.Empty ? 0 : int.Parse(attribute4);
if (nodeType == XmlNodeType.Attribute)
{
Debug.Assert(attribute1 != string.Empty);
var newAttr = new XmlDiffViewAttribute(attribute1, attribute2, attribute3, diffgramElement.InnerText);
newAttr._op = XmlDiffViewOperation.Add;
newAttr._opid = num;
((XmlDiffViewElement)sourceParent).InsertAttributeAfter(newAttr, null);
}
else
{
XmlDiffViewNode newChild = null;
switch (nodeType)
{
case XmlNodeType.Element:
Debug.Assert(attribute1 != string.Empty);
newChild = new XmlDiffViewElement(attribute1, attribute2, attribute3, this._bIgnorePrefixes);
this.ApplyDiffgram(diffgramElement, (XmlDiffViewParentNode)newChild);
break;
case XmlNodeType.Text:
case XmlNodeType.CDATA:
case XmlNodeType.Comment:
Debug.Assert(diffgramElement.InnerText != string.Empty);
newChild = new XmlDiffViewCharData(diffgramElement.InnerText, nodeType);
break;
case XmlNodeType.EntityReference:
Debug.Assert(attribute1 != string.Empty);
newChild = new XmlDiffViewER(attribute1);
break;
case XmlNodeType.ProcessingInstruction:
Debug.Assert(diffgramElement.InnerText != string.Empty);
Debug.Assert(attribute1 != string.Empty);
newChild = new XmlDiffViewPI(attribute1, diffgramElement.InnerText);
break;
case XmlNodeType.DocumentType:
newChild = new XmlDiffViewDocumentType(diffgramElement.GetAttribute("name"), diffgramElement.GetAttribute("publicId"), diffgramElement.GetAttribute("systemId"), diffgramElement.InnerText);
break;
case XmlNodeType.XmlDeclaration:
Debug.Assert(diffgramElement.InnerText != string.Empty);
newChild = new XmlDiffViewXmlDeclaration(diffgramElement.InnerText);
break;
default:
Debug.Assert(false, "Invalid node type.");
break;
}
Debug.Assert(newChild != null);
newChild._op = XmlDiffViewOperation.Add;
newChild._opid = num;
sourceParent.InsertChildAfter(newChild, currentPosition, false);
currentPosition = newChild;
}
}
private void LoadSourceChildNodes(
XmlDiffViewParentNode parent,
XmlReader reader,
bool bEmptyElement)
{
var loadState = this._loadState;
this._loadState.Reset();
while (reader.MoveToNextAttribute())
{
XmlDiffViewAttribute newAttr;
if (reader.Prefix == "xmlns" || reader.Prefix == string.Empty && reader.LocalName == "xmlns")
{
newAttr = new XmlDiffViewAttribute(reader.LocalName, reader.Prefix, reader.NamespaceURI, reader.Value);
if (this._bIgnoreNamespaces)
{
newAttr._op = XmlDiffViewOperation.Ignore;
}
}
else
{
var str = this._bIgnoreWhitespace ? XmlDiffView.NormalizeText(reader.Value) : reader.Value;
newAttr = new XmlDiffViewAttribute(reader.LocalName, reader.Prefix, reader.NamespaceURI, str);
}
((XmlDiffViewElement)parent).InsertAttributeAfter(newAttr, this._loadState._curLastAttribute);
this._loadState._curLastAttribute = newAttr;
}
if (!bEmptyElement)
{
while (reader.Read())
{
if (reader.NodeType != XmlNodeType.Whitespace)
{
XmlDiffViewNode newChild = null;
switch (reader.NodeType)
{
case XmlNodeType.Element:
var isEmptyElement = reader.IsEmptyElement;
var xmlDiffViewElement = new XmlDiffViewElement(reader.LocalName, reader.Prefix, reader.NamespaceURI, this._bIgnorePrefixes);
this.LoadSourceChildNodes(xmlDiffViewElement, reader, isEmptyElement);
newChild = xmlDiffViewElement;
break;
case XmlNodeType.Attribute:
Debug.Assert(false, "We should never get to this point, attributes should be read at the beginning of thid method.");
break;
case XmlNodeType.Text:
newChild = new XmlDiffViewCharData(this._bIgnoreWhitespace ? XmlDiffView.NormalizeText(reader.Value) : reader.Value, XmlNodeType.Text);
break;
case XmlNodeType.CDATA:
newChild = new XmlDiffViewCharData(reader.Value, XmlNodeType.CDATA);
break;
case XmlNodeType.EntityReference:
newChild = new XmlDiffViewER(reader.Name);
break;
case XmlNodeType.ProcessingInstruction:
newChild = new XmlDiffViewPI(reader.Name, reader.Value);
if (this._bIgnorePI)
{
newChild._op = XmlDiffViewOperation.Ignore;
break;
}
break;
case XmlNodeType.Comment:
newChild = new XmlDiffViewCharData(reader.Value, XmlNodeType.Comment);
if (this._bIgnoreComments)
{
newChild._op = XmlDiffViewOperation.Ignore;
break;
}
break;
case XmlNodeType.DocumentType:
newChild = new XmlDiffViewDocumentType(reader.Name, reader.GetAttribute("PUBLIC"), reader.GetAttribute("SYSTEM"), reader.Value);
if (this._bIgnoreDtd)
{
newChild._op = XmlDiffViewOperation.Ignore;
break;
}
break;
case XmlNodeType.SignificantWhitespace:
if (reader.XmlSpace == XmlSpace.Preserve)
{
newChild = new XmlDiffViewCharData(reader.Value, XmlNodeType.SignificantWhitespace);
if (this._bIgnoreWhitespace)
{
newChild._op = XmlDiffViewOperation.Ignore;
break;
}
break;
}
break;
case XmlNodeType.EndElement:
goto label_29;
case XmlNodeType.XmlDeclaration:
newChild = new XmlDiffViewXmlDeclaration(XmlDiffView.NormalizeText(reader.Value));
if (this._bIgnoreXmlDecl)
{
newChild._op = XmlDiffViewOperation.Ignore;
break;
}
break;
default:
Debug.Assert(false, "Invalid node type");
break;
}
parent.InsertChildAfter(newChild, this._loadState._curLastChild, true);
this._loadState._curLastChild = newChild;
}
}
}
label_29:
this._loadState = loadState;
}
private void OnAddNode(XmlElement diffgramElement, string nodeTypeAttr, XmlDiffViewParentNode sourceParent,
ref XmlDiffViewNode currentPosition)
{
XmlNodeType nodeType = (XmlNodeType)int.Parse(nodeTypeAttr);
string name = diffgramElement.GetAttribute("name");
string prefix = diffgramElement.GetAttribute("prefix");
string ns = diffgramElement.GetAttribute("ns");
string opidAttr = diffgramElement.GetAttribute("opid");
int opid = (opidAttr == string.Empty) ? 0 : int.Parse(opidAttr);
if (nodeType == XmlNodeType.Attribute)
{
Debug.Assert(name != string.Empty);
XmlDiffViewAttribute newAttr = new XmlDiffViewAttribute(name, prefix, ns, diffgramElement.InnerText);
newAttr._op = XmlDiffViewOperation.Add;
newAttr._opid = opid;
((XmlDiffViewElement)sourceParent).InsertAttributeAfter(newAttr, null);
}
else
{
XmlDiffViewNode newNode = null;
switch (nodeType)
{
case XmlNodeType.Element:
Debug.Assert(name != string.Empty);
newNode = new XmlDiffViewElement(name, prefix, ns, _bIgnorePrefixes);
ApplyDiffgram(diffgramElement, (XmlDiffViewParentNode)newNode);
break;
case XmlNodeType.Text:
case XmlNodeType.CDATA:
case XmlNodeType.Comment:
Debug.Assert(diffgramElement.InnerText != string.Empty);
newNode = new XmlDiffViewCharData(diffgramElement.InnerText, nodeType);
break;
case XmlNodeType.ProcessingInstruction:
Debug.Assert(diffgramElement.InnerText != string.Empty);
Debug.Assert(name != string.Empty);
newNode = new XmlDiffViewPI(name, diffgramElement.InnerText);
break;
case XmlNodeType.EntityReference:
Debug.Assert(name != string.Empty);
newNode = new XmlDiffViewER(name);
break;
case XmlNodeType.XmlDeclaration:
Debug.Assert(diffgramElement.InnerText != string.Empty);
newNode = new XmlDiffViewXmlDeclaration(diffgramElement.InnerText);
break;
case XmlNodeType.DocumentType:
newNode = new XmlDiffViewDocumentType(diffgramElement.GetAttribute("name"),
diffgramElement.GetAttribute("publicId"),
diffgramElement.GetAttribute("systemId"),
diffgramElement.InnerText);
break;
default:
Debug.Assert(false, "Invalid node type.");
break;
}
Debug.Assert(newNode != null);
newNode._op = XmlDiffViewOperation.Add;
newNode._opid = opid;
sourceParent.InsertChildAfter(newNode, currentPosition, false);
currentPosition = newNode;
}
}
private void LoadSourceChildNodes(XmlDiffViewParentNode parent, XmlReader reader, bool bEmptyElement)
{
LoadState savedLoadState = _loadState;
_loadState.Reset();
// load attributes
while (reader.MoveToNextAttribute())
{
XmlDiffViewAttribute attr;
if (reader.Prefix == "xmlns" ||
(reader.Prefix == string.Empty && reader.LocalName == "xmlns"))
{
attr = new XmlDiffViewAttribute(reader.LocalName, reader.Prefix, reader.NamespaceURI, reader.Value);
if (_bIgnoreNamespaces)
{
attr._op = XmlDiffViewOperation.Ignore;
}
}
else
{
string attrValue = _bIgnoreWhitespace ? NormalizeText(reader.Value) : reader.Value;
attr = new XmlDiffViewAttribute(reader.LocalName, reader.Prefix, reader.NamespaceURI, attrValue);
}
((XmlDiffViewElement)parent).InsertAttributeAfter(attr, _loadState._curLastAttribute);
_loadState._curLastAttribute = attr;
}
// empty element -> return, do not load chilren
if (bEmptyElement)
{
goto End;
}
// load children
while (reader.Read())
{
// ignore whitespaces between nodes
if (reader.NodeType == XmlNodeType.Whitespace)
{
continue;
}
XmlDiffViewNode child = null;
switch (reader.NodeType)
{
case XmlNodeType.Element:
bool bEmptyEl = reader.IsEmptyElement;
XmlDiffViewElement elem = new XmlDiffViewElement(reader.LocalName, reader.Prefix, reader.NamespaceURI, _bIgnorePrefixes);
LoadSourceChildNodes(elem, reader, bEmptyEl);
child = elem;
break;
case XmlNodeType.Attribute:
Debug.Assert(false, "We should never get to this point, attributes should be read at the beginning of thid method.");
break;
case XmlNodeType.Text:
child = new XmlDiffViewCharData((_bIgnoreWhitespace) ? NormalizeText(reader.Value) : reader.Value, XmlNodeType.Text);
break;
case XmlNodeType.CDATA:
child = new XmlDiffViewCharData(reader.Value, XmlNodeType.CDATA);
break;
case XmlNodeType.EntityReference:
child = new XmlDiffViewER(reader.Name);
break;
case XmlNodeType.Comment:
child = new XmlDiffViewCharData(reader.Value, XmlNodeType.Comment);
if (_bIgnoreComments)
{
child._op = XmlDiffViewOperation.Ignore;
}
break;
case XmlNodeType.ProcessingInstruction:
child = new XmlDiffViewPI(reader.Name, reader.Value);
if (_bIgnorePI)
{
child._op = XmlDiffViewOperation.Ignore;
}
break;
case XmlNodeType.SignificantWhitespace:
if (reader.XmlSpace == XmlSpace.Preserve)
{
child = new XmlDiffViewCharData(reader.Value, XmlNodeType.SignificantWhitespace);
if (_bIgnoreWhitespace)
{
child._op = XmlDiffViewOperation.Ignore;
}
}
break;
case XmlNodeType.XmlDeclaration:
child = new XmlDiffViewXmlDeclaration(NormalizeText(reader.Value));
if (_bIgnoreXmlDecl)
{
child._op = XmlDiffViewOperation.Ignore;
}
break;
case XmlNodeType.EndElement:
goto End;
case XmlNodeType.DocumentType:
child = new XmlDiffViewDocumentType(reader.Name, reader.GetAttribute("PUBLIC"), reader.GetAttribute("SYSTEM"), reader.Value);
if (_bIgnoreDtd)
{
child._op = XmlDiffViewOperation.Ignore;
}
break;
default:
Debug.Assert(false, "Invalid node type");
break;
}
parent.InsertChildAfter(child, _loadState._curLastChild, true);
_loadState._curLastChild = child;
}
End:
_loadState = savedLoadState;
}
/// <summary>
/// Add the new node or attribute
/// </summary>
/// <param name="diffgramElement">node in diffgram</param>
/// <param name="nodeTypeAttr">Whether this is an Attribute</param>
/// <param name="sourceParent">the baseline parent node</param>
/// <param name="currentPosition">the resulting node</param>
private void OnAddNode(
XmlElement diffgramElement,
string nodeTypeAttr,
XmlDiffViewParentNode sourceParent,
ref XmlDiffViewNode currentPosition)
{
XmlNodeType nodeType = (XmlNodeType)
int.Parse(nodeTypeAttr);
string name = diffgramElement.GetAttribute("name");
string prefix = diffgramElement.GetAttribute("prefix");
string ns = diffgramElement.GetAttribute("ns");
string opidAttr = diffgramElement.GetAttribute("opid");
int opid = ParseOpId(opidAttr);
if (nodeType == XmlNodeType.Attribute)
{
Debug.Assert(name != string.Empty);
XmlDiffViewAttribute newAttr = new XmlDiffViewAttribute(
name,
prefix,
ns,
diffgramElement.InnerText);
newAttr.Operation = XmlDiffViewOperation.Add;
newAttr.OperationId = opid;
((XmlDiffViewElement)
sourceParent).InsertAttributeAfter(newAttr, null);
}
else
{
XmlDiffViewNode newNode = null;
switch (nodeType)
{
case XmlNodeType.Element:
Debug.Assert(name != string.Empty);
newNode = new XmlDiffViewElement(
name,
prefix,
ns,
this.ignorePrefixes);
this.ApplyDiffgram(
diffgramElement,
(XmlDiffViewParentNode)newNode);
break;
case XmlNodeType.Text:
case XmlNodeType.CDATA:
case XmlNodeType.Comment:
Debug.Assert(diffgramElement.InnerText != string.Empty);
newNode = new XmlDiffViewCharData(
diffgramElement.InnerText,
nodeType);
break;
case XmlNodeType.ProcessingInstruction:
Debug.Assert(diffgramElement.InnerText != string.Empty);
Debug.Assert(name != string.Empty);
newNode = new XmlDiffViewPI(
name,
diffgramElement.InnerText);
break;
case XmlNodeType.EntityReference:
Debug.Assert(name != string.Empty);
Debug.Assert(false, "XmlDiffViewER was thought to be dead code");
//// newNode = new XmlDiffViewER(name);
break;
case XmlNodeType.XmlDeclaration:
Debug.Assert(diffgramElement.InnerText != string.Empty);
newNode = new XmlDiffViewXmlDeclaration(
diffgramElement.InnerText);
break;
case XmlNodeType.DocumentType:
newNode = new XmlDiffViewDocumentType(
diffgramElement.GetAttribute("name"),
diffgramElement.GetAttribute("publicId"),
diffgramElement.GetAttribute("systemId"),
diffgramElement.InnerText);
break;
default:
Debug.Assert(false, "Invalid node type.");
break;
}
Debug.Assert(newNode != null);
newNode.Operation = XmlDiffViewOperation.Add;
newNode.OperationId = opid;
sourceParent.InsertChildAfter(newNode, currentPosition, false);
currentPosition = newNode;
}
}
/// <summary>
/// Recurses through the baseline document loading the
/// contents to the XmlDiffViewDocument object and tagging
/// the pieces to be ignored later when the data is output.
/// </summary>
/// <param name="parent">Parent node</param>
/// <param name="reader">The xml data</param>
/// <param name="emptyElement">Node has no children</param>
private void LoadSourceChildNodes(
XmlDiffViewParentNode parent,
XmlReader reader,
bool emptyElement)
{
LoadState savedLoadState = this.loadState;
this.loadState.Reset();
// load attributes
while (reader.MoveToNextAttribute())
{
XmlDiffViewAttribute attr;
if (reader.Prefix == "xmlns" ||
(reader.Prefix == string.Empty &&
reader.LocalName == "xmlns"))
{
// create new DiffView attribute
attr = new XmlDiffViewAttribute(
reader.LocalName,
reader.Prefix,
reader.NamespaceURI,
reader.Value);
if (this.ignoreNamespaces)
{
// set the output operation to be performed
attr.Operation = XmlDiffViewOperation.Ignore;
}
}
else
{
string attrValue = this.ignoreWhitespace ? NormalizeText(reader.Value) : reader.Value;
attr = new XmlDiffViewAttribute(
reader.LocalName,
reader.Prefix,
reader.NamespaceURI,
attrValue);
}
((XmlDiffViewElement)parent).InsertAttributeAfter(
attr,
this.loadState.LastAttribute);
this.loadState.LastAttribute = attr;
}
// empty element -> return, do not load chilren
if (emptyElement)
{
goto End;
}
// load children
while (reader.Read())
{
// ignore whitespaces between nodes
if (reader.NodeType == XmlNodeType.Whitespace)
{
continue;
}
XmlDiffViewNode child = null;
switch (reader.NodeType)
{
case XmlNodeType.Element:
bool emptyElementNode = reader.IsEmptyElement;
XmlDiffViewElement elem = new XmlDiffViewElement(
reader.LocalName,
reader.Prefix,
reader.NamespaceURI,
this.ignorePrefixes);
this.LoadSourceChildNodes(elem, reader, emptyElementNode);
child = elem;
break;
case XmlNodeType.Attribute:
string reason = "We should never get to this point, " +
"attributes should be read at the beginning of this method.";
Debug.Assert(false, reason);
break;
case XmlNodeType.Text:
child = new XmlDiffViewCharData((this.ignoreWhitespace) ? NormalizeText(reader.Value) : reader.Value, XmlNodeType.Text);
break;
case XmlNodeType.CDATA:
child = new XmlDiffViewCharData(reader.Value, XmlNodeType.CDATA);
break;
case XmlNodeType.EntityReference:
Debug.Assert(false, "XmlDiffViewER was thought to be dead code");
// child = new XmlDiffViewER(reader.Name);
break;
case XmlNodeType.Comment:
child = new XmlDiffViewCharData(reader.Value, XmlNodeType.Comment);
if (this.ignoreComments)
{
child.Operation = XmlDiffViewOperation.Ignore;
}
break;
case XmlNodeType.ProcessingInstruction:
child = new XmlDiffViewPI(reader.Name, reader.Value);
if (this.ignorePI)
{
child.Operation = XmlDiffViewOperation.Ignore;
}
break;
case XmlNodeType.SignificantWhitespace:
if (reader.XmlSpace == XmlSpace.Preserve)
{
child = new XmlDiffViewCharData(reader.Value, XmlNodeType.SignificantWhitespace);
if (this.ignoreWhitespace)
{
child.Operation = XmlDiffViewOperation.Ignore;
}
}
break;
case XmlNodeType.XmlDeclaration:
child = new XmlDiffViewXmlDeclaration(NormalizeText(reader.Value));
if (this.ignoreXmlDecl)
{
child.Operation = XmlDiffViewOperation.Ignore;
}
break;
case XmlNodeType.EndElement:
goto End;
case XmlNodeType.DocumentType:
child = new XmlDiffViewDocumentType(
reader.Name,
reader.GetAttribute("PUBLIC"),
reader.GetAttribute("SYSTEM"),
reader.Value);
if (this.ignoreDtd)
{
child.Operation = XmlDiffViewOperation.Ignore;
}
break;
default:
Debug.Assert(false, "Invalid node type");
break;
}
parent.InsertChildAfter(child, this.loadState.LastChild, true);
this.loadState.LastChild = child;
}
End:
this.loadState = savedLoadState;
}
