internal void LoadChildNodes(XmlDiffParentNode parent, XmlNode parentDomNode)
{
var curLastChild = this._curLastChild;
this._curLastChild = (XmlDiffNode) null;
var attributes = (XmlNamedNodeMap) parentDomNode.Attributes;
if (attributes != null && attributes.Count > 0)
{
foreach (XmlAttribute xmlAttribute in attributes)
{
if (xmlAttribute.Prefix == "xmlns")
{
if (!this._XmlDiff.IgnoreNamespaces)
{
var xmlDiffNamespace = new XmlDiffNamespace(xmlAttribute.LocalName, xmlAttribute.Value);
xmlDiffNamespace.ComputeHashValue(this._xmlHash);
this.InsertAttributeOrNamespace((XmlDiffElement) parent, (XmlDiffAttributeOrNamespace) xmlDiffNamespace);
}
}
else if (xmlAttribute.Prefix == string.Empty && xmlAttribute.LocalName == "xmlns")
{
if (!this._XmlDiff.IgnoreNamespaces)
{
var xmlDiffNamespace = new XmlDiffNamespace(string.Empty, xmlAttribute.Value);
xmlDiffNamespace.ComputeHashValue(this._xmlHash);
this.InsertAttributeOrNamespace((XmlDiffElement) parent, (XmlDiffAttributeOrNamespace) xmlDiffNamespace);
}
}
else
{
var str = this._XmlDiff.IgnoreWhitespace ? XmlDiff.NormalizeText(xmlAttribute.Value) : xmlAttribute.Value;
var xmlDiffAttribute = new XmlDiffAttribute(xmlAttribute.LocalName, xmlAttribute.Prefix, xmlAttribute.NamespaceURI, str);
xmlDiffAttribute.ComputeHashValue(this._xmlHash);
this.InsertAttributeOrNamespace((XmlDiffElement) parent, (XmlDiffAttributeOrNamespace) xmlDiffAttribute);
}
}
}
var childNodes = parentDomNode.ChildNodes;
if (childNodes.Count != 0)
{
var childPosition = 0;
var enumerator = childNodes.GetEnumerator();
while (enumerator.MoveNext())
{
if (((XmlNode) enumerator.Current).NodeType != XmlNodeType.Whitespace)
{
var newChild = this.LoadNode((XmlNode) enumerator.Current, ref childPosition);
if (newChild != null)
this.InsertChild(parent, newChild);
}
}
}
this._curLastChild = curLastChild;
}
// Methods
internal override void WriteTo(XmlWriter xmlWriter, XmlDiff xmlDiff)
{
xmlWriter.WriteStartElement(XmlDiff.Prefix, "add", XmlDiff.NamespaceUri);
switch (_targetNode.NodeType)
{
case XmlDiffNodeType.Element:
{
xmlWriter.WriteAttributeString("type", ((int)XmlNodeType.Element).ToString());
XmlDiffElement el = _targetNode as XmlDiffElement;
xmlWriter.WriteAttributeString("name", el.LocalName);
if (el.NamespaceURI != string.Empty)
{
xmlWriter.WriteAttributeString("ns", el.NamespaceURI);
}
if (el.Prefix != string.Empty)
{
xmlWriter.WriteAttributeString("prefix", el.Prefix);
}
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
WriteChildrenTo(xmlWriter, xmlDiff);
break;
}
case XmlDiffNodeType.Attribute:
{
xmlWriter.WriteAttributeString("type", ((int)XmlNodeType.Attribute).ToString());
XmlDiffAttribute at = _targetNode as XmlDiffAttribute;
xmlWriter.WriteAttributeString("name", at.LocalName);
if (at.NamespaceURI != string.Empty)
{
xmlWriter.WriteAttributeString("ns", at.NamespaceURI);
}
if (at.Prefix != string.Empty)
{
xmlWriter.WriteAttributeString("prefix", at.Prefix);
}
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
xmlWriter.WriteString(at.Value);
break;
}
case XmlDiffNodeType.Namespace:
{
xmlWriter.WriteAttributeString("type", ((int)XmlNodeType.Attribute).ToString());
XmlDiffNamespace ns = _targetNode as XmlDiffNamespace;
if (ns.Prefix != string.Empty)
{
xmlWriter.WriteAttributeString("prefix", "xmlns");
xmlWriter.WriteAttributeString("name", ns.Prefix);
}
else
{
xmlWriter.WriteAttributeString("name", "xmlns");
}
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
xmlWriter.WriteString(ns.NamespaceURI);
break;
}
case XmlDiffNodeType.CDATA:
{
Debug.Assert(false, "CDATA nodes should be added with DiffgramAddSubtrees class.");
xmlWriter.WriteAttributeString("type", ((int)_targetNode.NodeType).ToString());
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
xmlWriter.WriteCData((_targetNode as XmlDiffCharData).Value);
break;
}
case XmlDiffNodeType.Comment:
{
Debug.Assert(false, "Comment nodes should be added with DiffgramAddSubtrees class.");
xmlWriter.WriteAttributeString("type", ((int)_targetNode.NodeType).ToString());
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
xmlWriter.WriteComment((_targetNode as XmlDiffCharData).Value);
break;
}
case XmlDiffNodeType.Text:
{
Debug.Assert(false, "Text nodes should be added with DiffgramAddSubtrees class.");
xmlWriter.WriteAttributeString("type", ((int)_targetNode.NodeType).ToString());
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
xmlWriter.WriteString((_targetNode as XmlDiffCharData).Value);
break;
}
case XmlDiffNodeType.ProcessingInstruction:
{
Debug.Assert(false, "Processing instruction nodes should be added with DiffgramAddSubtrees class.");
xmlWriter.WriteAttributeString("type", ((int)_targetNode.NodeType).ToString());
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
XmlDiffPI pi = _targetNode as XmlDiffPI;
xmlWriter.WriteProcessingInstruction(pi.Name, pi.Value);
break;
}
case XmlDiffNodeType.EntityReference:
{
xmlWriter.WriteAttributeString("type", ((int)XmlNodeType.EntityReference).ToString());
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
xmlWriter.WriteAttributeString("name", ((XmlDiffER)_targetNode).Name);
break;
}
case XmlDiffNodeType.SignificantWhitespace:
{
Debug.Assert(false, "Significant whitespace nodes should be added with DiffgramAddSubtrees class.");
xmlWriter.WriteAttributeString("type", ((int)_targetNode.NodeType).ToString());
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
xmlWriter.WriteString(((XmlDiffCharData)_targetNode).Value);
break;
}
case XmlDiffNodeType.XmlDeclaration:
{
xmlWriter.WriteAttributeString("type", ((int)XmlNodeType.XmlDeclaration).ToString());
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
xmlWriter.WriteString(((XmlDiffXmlDeclaration)_targetNode).Value);
break;
}
case XmlDiffNodeType.DocumentType:
{
xmlWriter.WriteAttributeString("type", ((int)XmlNodeType.DocumentType).ToString());
XmlDiffDocumentType docType = (XmlDiffDocumentType)_targetNode;
if (_operationID != 0)
{
xmlWriter.WriteAttributeString("opid", _operationID.ToString());
}
xmlWriter.WriteAttributeString("name", docType.Name);
if (docType.PublicId != string.Empty)
{
xmlWriter.WriteAttributeString("publicId", docType.PublicId);
}
if (docType.SystemId != string.Empty)
{
xmlWriter.WriteAttributeString("systemId", docType.SystemId);
}
if (docType.Subset != string.Empty)
{
xmlWriter.WriteCData(docType.Subset);
}
break;
}
default:
Debug.Assert(false);
break;
}
xmlWriter.WriteEndElement();
}
internal void InsertAttributeOrNamespace(XmlDiffAttributeOrNamespace newAttrOrNs)
{
Debug.Assert(newAttrOrNs != null);
newAttrOrNs._parent = this;
XmlDiffAttributeOrNamespace curAttr = _attributes;
XmlDiffAttributeOrNamespace prevAttr = null;
while (curAttr != null &&
XmlDiffDocument.OrderAttributesOrNamespaces(curAttr, newAttrOrNs) <= 0)
{
prevAttr = curAttr;
curAttr = (XmlDiffAttributeOrNamespace)curAttr._nextSibling;
}
if (prevAttr == null)
{
newAttrOrNs._nextSibling = _attributes;
_attributes = newAttrOrNs;
}
else
{
newAttrOrNs._nextSibling = prevAttr._nextSibling;
prevAttr._nextSibling = newAttrOrNs;
}
// hash
Debug.Assert(newAttrOrNs.HashValue != 0);
_allAttributesHash += newAttrOrNs.HashValue;
char firstLetter;
if (newAttrOrNs.NodeType == XmlDiffNodeType.Attribute)
{
firstLetter = ((XmlDiffAttribute)newAttrOrNs).LocalName[0];
}
else
{
XmlDiffNamespace nsNode = (XmlDiffNamespace)newAttrOrNs;
firstLetter = (nsNode.Prefix == string.Empty) ? 'A' : nsNode.Prefix[0];
}
firstLetter = char.ToUpper(firstLetter);
if (firstLetter >= 'R')
{
_attributesHashRZ += newAttrOrNs.HashValue;
}
else if (firstLetter >= 'I')
{
_attributesHashIQ += newAttrOrNs.HashValue;
}
else
{
_attributesHashAH += newAttrOrNs.HashValue;
}
if (newAttrOrNs.NodeType == XmlDiffNodeType.Namespace)
{
_bDefinesNamespaces = true;
}
}
// Loads child nodes of the 'parent' node
internal void LoadChildNodes(XmlDiffParentNode parent, XmlNode parentDomNode)
{
XmlDiffNode savedLastChild = _curLastChild;
_curLastChild = null;
// load attributes & namespace nodes
XmlNamedNodeMap attribs = parentDomNode.Attributes;
if (attribs != null && attribs.Count > 0)
{
IEnumerator attrEnum = attribs.GetEnumerator();
while (attrEnum.MoveNext())
{
XmlAttribute attr = (XmlAttribute)attrEnum.Current;
if (attr.Prefix == "xmlns")
{
if (!_XmlDiff.IgnoreNamespaces)
{
XmlDiffNamespace nsNode = new XmlDiffNamespace(attr.LocalName, attr.Value);
nsNode.ComputeHashValue(_xmlHash);
InsertAttributeOrNamespace((XmlDiffElement)parent, nsNode);
}
}
else if (attr.Prefix == string.Empty && attr.LocalName == "xmlns")
{
if (!_XmlDiff.IgnoreNamespaces)
{
XmlDiffNamespace nsNode = new XmlDiffNamespace(string.Empty, attr.Value);
nsNode.ComputeHashValue(_xmlHash);
InsertAttributeOrNamespace((XmlDiffElement)parent, nsNode);
}
}
else
{
string attrValue = _XmlDiff.IgnoreWhitespace ? XmlDiff.NormalizeText(attr.Value) : attr.Value;
XmlDiffAttribute newAttr = new XmlDiffAttribute(attr.LocalName, attr.Prefix, attr.NamespaceURI, attrValue);
newAttr.ComputeHashValue(_xmlHash);
InsertAttributeOrNamespace((XmlDiffElement)parent, newAttr);
}
}
}
// load children
XmlNodeList children = parentDomNode.ChildNodes;
if (children.Count == 0)
{
goto End;
}
int childPosition = 0;
IEnumerator childEnum = children.GetEnumerator();
while (childEnum.MoveNext())
{
XmlNode node = (XmlNode)childEnum.Current;
// ignore whitespaces between nodes
if (node.NodeType == XmlNodeType.Whitespace)
{
continue;
}
XmlDiffNode newDiffNode = LoadNode((XmlNode)childEnum.Current, ref childPosition);
if (newDiffNode != null)
{
InsertChild(parent, newDiffNode);
}
}
End:
_curLastChild = savedLastChild;
}
// Loads child nodes of the 'parent' node
internal void LoadChildNodes(XmlDiffParentNode parent, XmlReader reader, bool bEmptyElement)
{
XmlDiffNode savedLastChild = _curLastChild;
_curLastChild = null;
// load attributes & namespace nodes
while (reader.MoveToNextAttribute())
{
if (reader.Prefix == "xmlns")
{
if (!_XmlDiff.IgnoreNamespaces)
{
XmlDiffNamespace nsNode = new XmlDiffNamespace(reader.LocalName, reader.Value);
nsNode.ComputeHashValue(_xmlHash);
InsertAttributeOrNamespace((XmlDiffElement)parent, nsNode);
}
}
else if (reader.Prefix == string.Empty && reader.LocalName == "xmlns")
{
if (!_XmlDiff.IgnoreNamespaces)
{
XmlDiffNamespace nsNode = new XmlDiffNamespace(string.Empty, reader.Value);
nsNode.ComputeHashValue(_xmlHash);
InsertAttributeOrNamespace((XmlDiffElement)parent, nsNode);
}
}
else
{
string attrValue = _XmlDiff.IgnoreWhitespace ? XmlDiff.NormalizeText(reader.Value) : reader.Value;
XmlDiffAttribute attr = new XmlDiffAttribute(reader.LocalName, reader.Prefix, reader.NamespaceURI, attrValue);
attr.ComputeHashValue(_xmlHash);
InsertAttributeOrNamespace((XmlDiffElement)parent, attr);
}
}
// empty element -> return, do not load chilren
if (bEmptyElement)
{
goto End;
}
int childPosition = 0;
// load children
if (!reader.Read())
{
goto End;
}
do
{
// ignore whitespaces between nodes
if (reader.NodeType == XmlNodeType.Whitespace)
{
continue;
}
switch (reader.NodeType)
{
case XmlNodeType.Element:
{
bool bEmptyEl = reader.IsEmptyElement;
XmlDiffElement elem = new XmlDiffElement(++childPosition, reader.LocalName, reader.Prefix, reader.NamespaceURI);
LoadChildNodes(elem, reader, bEmptyEl);
elem.ComputeHashValue(_xmlHash);
InsertChild(parent, 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:
{
string textValue = (_XmlDiff.IgnoreWhitespace) ? XmlDiff.NormalizeText(reader.Value) : reader.Value;
XmlDiffCharData charDataNode = new XmlDiffCharData(++childPosition, textValue, XmlDiffNodeType.Text);
charDataNode.ComputeHashValue(_xmlHash);
InsertChild(parent, charDataNode);
break;
}
case XmlNodeType.CDATA:
{
XmlDiffCharData charDataNode = new XmlDiffCharData(++childPosition, reader.Value, XmlDiffNodeType.CDATA);
charDataNode.ComputeHashValue(_xmlHash);
InsertChild(parent, charDataNode);
break;
}
case XmlNodeType.EntityReference:
{
XmlDiffER er = new XmlDiffER(++childPosition, reader.Name);
er.ComputeHashValue(_xmlHash);
InsertChild(parent, er);
break;
}
case XmlNodeType.Comment:
{
++childPosition;
if (!_XmlDiff.IgnoreComments)
{
XmlDiffCharData charDataNode = new XmlDiffCharData(childPosition, reader.Value, XmlDiffNodeType.Comment);
charDataNode.ComputeHashValue(_xmlHash);
InsertChild(parent, charDataNode);
}
break;
}
case XmlNodeType.ProcessingInstruction:
{
++childPosition;
if (!_XmlDiff.IgnorePI)
{
XmlDiffPI pi = new XmlDiffPI(childPosition, reader.Name, reader.Value);
pi.ComputeHashValue(_xmlHash);
InsertChild(parent, pi);
}
break;
}
case XmlNodeType.SignificantWhitespace:
{
if (reader.XmlSpace == XmlSpace.Preserve)
{
++childPosition;
if (!_XmlDiff.IgnoreWhitespace)
{
XmlDiffCharData charDataNode = new XmlDiffCharData(childPosition, reader.Value, XmlDiffNodeType.SignificantWhitespace);
charDataNode.ComputeHashValue(_xmlHash);
InsertChild(parent, charDataNode);
}
}
break;
}
case XmlNodeType.XmlDeclaration:
{
++childPosition;
if (!_XmlDiff.IgnoreXmlDecl)
{
XmlDiffXmlDeclaration xmlDecl = new XmlDiffXmlDeclaration(childPosition, XmlDiff.NormalizeXmlDeclaration(reader.Value));
xmlDecl.ComputeHashValue(_xmlHash);
InsertChild(parent, xmlDecl);
}
break;
}
case XmlNodeType.EndElement:
goto End;
case XmlNodeType.DocumentType:
childPosition++;
if (!_XmlDiff.IgnoreDtd)
{
XmlDiffDocumentType docType = new XmlDiffDocumentType(childPosition,
reader.Name,
reader.GetAttribute("PUBLIC"),
reader.GetAttribute("SYSTEM"),
reader.Value);
docType.ComputeHashValue(_xmlHash);
InsertChild(parent, docType);
}
break;
default:
Debug.Assert(false);
break;
}
} while (reader.Read());
End:
_curLastChild = savedLastChild;
}
internal void LoadChildNodes(XmlDiffParentNode parent, XmlReader reader, bool bEmptyElement)
{
var curLastChild = this._curLastChild;
this._curLastChild = (XmlDiffNode) null;
while (reader.MoveToNextAttribute())
{
if (reader.Prefix == "xmlns")
{
if (!this._XmlDiff.IgnoreNamespaces)
{
var xmlDiffNamespace = new XmlDiffNamespace(reader.LocalName, reader.Value);
xmlDiffNamespace.ComputeHashValue(this._xmlHash);
this.InsertAttributeOrNamespace((XmlDiffElement) parent, (XmlDiffAttributeOrNamespace) xmlDiffNamespace);
}
}
else if (reader.Prefix == string.Empty && reader.LocalName == "xmlns")
{
if (!this._XmlDiff.IgnoreNamespaces)
{
var xmlDiffNamespace = new XmlDiffNamespace(string.Empty, reader.Value);
xmlDiffNamespace.ComputeHashValue(this._xmlHash);
this.InsertAttributeOrNamespace((XmlDiffElement) parent, (XmlDiffAttributeOrNamespace) xmlDiffNamespace);
}
}
else
{
var str = this._XmlDiff.IgnoreWhitespace ? XmlDiff.NormalizeText(reader.Value) : reader.Value;
var xmlDiffAttribute = new XmlDiffAttribute(reader.LocalName, reader.Prefix, reader.NamespaceURI, str);
xmlDiffAttribute.ComputeHashValue(this._xmlHash);
this.InsertAttributeOrNamespace((XmlDiffElement) parent, (XmlDiffAttributeOrNamespace) xmlDiffAttribute);
}
}
if (!bEmptyElement)
{
var position = 0;
if (reader.Read())
{
do
{
if (reader.NodeType != XmlNodeType.Whitespace)
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
var isEmptyElement = reader.IsEmptyElement;
var xmlDiffElement = new XmlDiffElement(++position, reader.LocalName, reader.Prefix, reader.NamespaceURI);
this.LoadChildNodes((XmlDiffParentNode) xmlDiffElement, reader, isEmptyElement);
xmlDiffElement.ComputeHashValue(this._xmlHash);
this.InsertChild(parent, (XmlDiffNode) xmlDiffElement);
break;
case XmlNodeType.Text:
var str = this._XmlDiff.IgnoreWhitespace ? XmlDiff.NormalizeText(reader.Value) : reader.Value;
var xmlDiffCharData1 = new XmlDiffCharData(++position, str, XmlDiffNodeType.Text);
xmlDiffCharData1.ComputeHashValue(this._xmlHash);
this.InsertChild(parent, (XmlDiffNode) xmlDiffCharData1);
break;
case XmlNodeType.CDATA:
var xmlDiffCharData2 = new XmlDiffCharData(++position, reader.Value, XmlDiffNodeType.CDATA);
xmlDiffCharData2.ComputeHashValue(this._xmlHash);
this.InsertChild(parent, (XmlDiffNode) xmlDiffCharData2);
break;
case XmlNodeType.EntityReference:
var xmlDiffEr = new XmlDiffER(++position, reader.Name);
xmlDiffEr.ComputeHashValue(this._xmlHash);
this.InsertChild(parent, (XmlDiffNode) xmlDiffEr);
break;
case XmlNodeType.ProcessingInstruction:
++position;
if (!this._XmlDiff.IgnorePI)
{
var xmlDiffPi = new XmlDiffPI(position, reader.Name, reader.Value);
xmlDiffPi.ComputeHashValue(this._xmlHash);
this.InsertChild(parent, (XmlDiffNode) xmlDiffPi);
break;
}
break;
case XmlNodeType.Comment:
++position;
if (!this._XmlDiff.IgnoreComments)
{
var xmlDiffCharData3 = new XmlDiffCharData(position, reader.Value, XmlDiffNodeType.Comment);
xmlDiffCharData3.ComputeHashValue(this._xmlHash);
this.InsertChild(parent, (XmlDiffNode) xmlDiffCharData3);
break;
}
break;
case XmlNodeType.DocumentType:
++position;
if (!this._XmlDiff.IgnoreDtd)
{
var diffDocumentType = new XmlDiffDocumentType(position, reader.Name, reader.GetAttribute("PUBLIC"), reader.GetAttribute("SYSTEM"), reader.Value);
diffDocumentType.ComputeHashValue(this._xmlHash);
this.InsertChild(parent, (XmlDiffNode) diffDocumentType);
break;
}
break;
case XmlNodeType.SignificantWhitespace:
if (reader.XmlSpace == XmlSpace.Preserve)
{
++position;
if (!this._XmlDiff.IgnoreWhitespace)
{
var xmlDiffCharData3 = new XmlDiffCharData(position, reader.Value, XmlDiffNodeType.SignificantWhitespace);
xmlDiffCharData3.ComputeHashValue(this._xmlHash);
this.InsertChild(parent, (XmlDiffNode) xmlDiffCharData3);
break;
}
break;
}
break;
case XmlNodeType.EndElement:
goto label_29;
case XmlNodeType.XmlDeclaration:
++position;
if (!this._XmlDiff.IgnoreXmlDecl)
{
var diffXmlDeclaration = new XmlDiffXmlDeclaration(position, XmlDiff.NormalizeXmlDeclaration(reader.Value));
diffXmlDeclaration.ComputeHashValue(this._xmlHash);
this.InsertChild(parent, (XmlDiffNode) diffXmlDeclaration);
break;
}
break;
}
}
}
while (reader.Read());
}
}
label_29:
this._curLastChild = curLastChild;
}
// Loads child nodes of the 'parent' node
internal void LoadChildNodes( XmlDiffParentNode parent, XmlNode parentDomNode )
{
XmlDiffNode savedLastChild = _curLastChild;
_curLastChild = null;
// load attributes & namespace nodes
XmlNamedNodeMap attribs = parentDomNode.Attributes;
if ( attribs != null && attribs.Count > 0 )
{
IEnumerator attrEnum = attribs.GetEnumerator();
while ( attrEnum.MoveNext() )
{
XmlAttribute attr = (XmlAttribute)attrEnum.Current;
if ( attr.Prefix == "xmlns" )
{
if ( !_XmlDiff.IgnoreNamespaces )
{
XmlDiffNamespace nsNode = new XmlDiffNamespace( attr.LocalName, attr.Value );
nsNode.ComputeHashValue( _xmlHash );
InsertAttributeOrNamespace( (XmlDiffElement)parent, nsNode );
}
}
else if ( attr.Prefix == string.Empty && attr.LocalName == "xmlns" )
{
if ( !_XmlDiff.IgnoreNamespaces )
{
XmlDiffNamespace nsNode = new XmlDiffNamespace( string.Empty, attr.Value );
nsNode.ComputeHashValue( _xmlHash );
InsertAttributeOrNamespace( (XmlDiffElement)parent, nsNode );
}
}
else
{
string attrValue = _XmlDiff.IgnoreWhitespace ? XmlDiff.NormalizeText( attr.Value ) : attr.Value;
XmlDiffAttribute newAttr = new XmlDiffAttribute( attr.LocalName, attr.Prefix, attr.NamespaceURI, attrValue );
newAttr.ComputeHashValue( _xmlHash );
InsertAttributeOrNamespace( (XmlDiffElement)parent, newAttr );
}
}
}
// load children
XmlNodeList children = parentDomNode.ChildNodes;
if ( children.Count == 0 )
goto End;
int childPosition = 0;
IEnumerator childEnum = children.GetEnumerator();
while ( childEnum.MoveNext() )
{
XmlNode node = (XmlNode)childEnum.Current;
// ignore whitespaces between nodes
if ( node.NodeType == XmlNodeType.Whitespace )
continue;
XmlDiffNode newDiffNode = LoadNode( (XmlNode)childEnum.Current, ref childPosition );
if ( newDiffNode != null )
InsertChild( parent, newDiffNode );
}
End:
_curLastChild = savedLastChild;
}
// Loads child nodes of the 'parent' node
internal void LoadChildNodes ( XmlDiffParentNode parent, XmlReader reader, bool bEmptyElement )
{
XmlDiffNode savedLastChild = _curLastChild;
_curLastChild = null;
// load attributes & namespace nodes
while ( reader.MoveToNextAttribute() )
{
if ( reader.Prefix == "xmlns" )
{
if ( !_XmlDiff.IgnoreNamespaces )
{
XmlDiffNamespace nsNode = new XmlDiffNamespace( reader.LocalName, reader.Value );
nsNode.ComputeHashValue( _xmlHash );
InsertAttributeOrNamespace( (XmlDiffElement)parent, nsNode );
}
}
else if ( reader.Prefix == string.Empty && reader.LocalName == "xmlns" )
{
if ( !_XmlDiff.IgnoreNamespaces )
{
XmlDiffNamespace nsNode = new XmlDiffNamespace( string.Empty, reader.Value );
nsNode.ComputeHashValue( _xmlHash );
InsertAttributeOrNamespace( (XmlDiffElement)parent, nsNode );
}
}
else
{
string attrValue = _XmlDiff.IgnoreWhitespace ? XmlDiff.NormalizeText( reader.Value ) : reader.Value;
XmlDiffAttribute attr = new XmlDiffAttribute( reader.LocalName, reader.Prefix, reader.NamespaceURI, attrValue );
attr.ComputeHashValue( _xmlHash );
InsertAttributeOrNamespace( (XmlDiffElement)parent, attr );
}
}
// empty element -> return, do not load chilren
if ( bEmptyElement )
goto End;
int childPosition = 0;
// load children
if ( !reader.Read())
goto End;
do {
// ignore whitespaces between nodes
if ( reader.NodeType == XmlNodeType.Whitespace )
continue;
switch ( reader.NodeType )
{
case XmlNodeType.Element:
{
bool bEmptyEl = reader.IsEmptyElement;
XmlDiffElement elem = new XmlDiffElement( ++childPosition, reader.LocalName, reader.Prefix, reader.NamespaceURI );
LoadChildNodes( elem, reader, bEmptyEl );
elem.ComputeHashValue( _xmlHash );
InsertChild( parent, 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:
{
string textValue = ( _XmlDiff.IgnoreWhitespace ) ? XmlDiff.NormalizeText( reader.Value ) : reader.Value;
XmlDiffCharData charDataNode = new XmlDiffCharData( ++childPosition, textValue, XmlDiffNodeType.Text );
charDataNode.ComputeHashValue( _xmlHash );
InsertChild( parent, charDataNode );
break;
}
case XmlNodeType.CDATA:
{
XmlDiffCharData charDataNode = new XmlDiffCharData( ++childPosition, reader.Value, XmlDiffNodeType.CDATA );
charDataNode.ComputeHashValue( _xmlHash );
InsertChild( parent, charDataNode );
break;
}
case XmlNodeType.EntityReference:
{
XmlDiffER er = new XmlDiffER( ++childPosition, reader.Name );
er.ComputeHashValue( _xmlHash );
InsertChild( parent, er );
break;
}
case XmlNodeType.Comment:
{
++childPosition;
if ( !_XmlDiff.IgnoreComments )
{
XmlDiffCharData charDataNode = new XmlDiffCharData( childPosition, reader.Value, XmlDiffNodeType.Comment );
charDataNode.ComputeHashValue( _xmlHash );
InsertChild( parent, charDataNode );
}
break;
}
case XmlNodeType.ProcessingInstruction:
{
++childPosition;
if ( !_XmlDiff.IgnorePI )
{
XmlDiffPI pi = new XmlDiffPI( childPosition, reader.Name, reader.Value );
pi.ComputeHashValue( _xmlHash );
InsertChild( parent, pi );
}
break;
}
case XmlNodeType.SignificantWhitespace:
{
if( reader.XmlSpace == XmlSpace.Preserve )
{
++childPosition;
if (!_XmlDiff.IgnoreWhitespace )
{
XmlDiffCharData charDataNode = new XmlDiffCharData( childPosition, reader.Value, XmlDiffNodeType.SignificantWhitespace );
charDataNode.ComputeHashValue( _xmlHash );
InsertChild( parent, charDataNode );
}
}
break;
}
case XmlNodeType.XmlDeclaration:
{
++childPosition;
if ( !_XmlDiff.IgnoreXmlDecl )
{
XmlDiffXmlDeclaration xmlDecl = new XmlDiffXmlDeclaration( childPosition, XmlDiff.NormalizeXmlDeclaration( reader.Value ) );
xmlDecl.ComputeHashValue( _xmlHash );
InsertChild( parent, xmlDecl );
}
break;
}
case XmlNodeType.EndElement:
goto End;
case XmlNodeType.DocumentType:
childPosition++;
if ( !_XmlDiff.IgnoreDtd ) {
XmlDiffDocumentType docType = new XmlDiffDocumentType( childPosition,
reader.Name,
reader.GetAttribute("PUBLIC"),
reader.GetAttribute("SYSTEM"),
reader.Value );
docType.ComputeHashValue( _xmlHash );
InsertChild( parent, docType );
}
break;
default:
Debug.Assert( false );
break;
}
} while ( reader.Read() );
End:
_curLastChild = savedLastChild;
}
