protected void ConsumeReader(XmlReader reader)
{
while (reader.Read())
{
string x = reader.Name + reader.NodeType + reader.Value;
if (reader.NodeType == XmlNodeType.Element)
{
if (reader.HasAttributes)
{
reader.MoveToFirstAttribute();
int index = 0;
reader.MoveToAttribute(index);
index++;
while (reader.MoveToNextAttribute())
{
string name = reader.Name;
string value;
value = reader.GetAttribute(index);
value = reader.GetAttribute(name);
value = reader.GetAttribute(name, null);
reader.ReadAttributeValue();
reader.MoveToAttribute(index);
reader.MoveToAttribute(name, null);
index++;
}
}
}
if (reader.NodeType == XmlNodeType.EndElement)
{
reader.Skip();
}
}
}
/// <summary>
/// Create a writer that can be used to create nodes in this document. The root node will be assigned "baseUri", and flags
/// can be passed to indicate that names should be atomized by the builder and/or a fragment should be created.
/// </summary>
internal void LoadFromReader(XmlReader reader, XmlSpace space)
{
XPathDocumentBuilder builder;
IXmlLineInfo lineInfo;
string xmlnsUri;
bool topLevelReader;
int initialDepth;
if (reader == null)
throw new ArgumentNullException(nameof(reader));
// Determine line number provider
lineInfo = reader as IXmlLineInfo;
if (lineInfo == null || !lineInfo.HasLineInfo())
lineInfo = null;
_hasLineInfo = (lineInfo != null);
_nameTable = reader.NameTable;
builder = new XPathDocumentBuilder(this, lineInfo, reader.BaseURI, LoadFlags.None);
try
{
// Determine whether reader is in initial state
topLevelReader = (reader.ReadState == ReadState.Initial);
initialDepth = reader.Depth;
// Get atomized xmlns uri
Debug.Assert((object)_nameTable.Get(string.Empty) == (object)string.Empty, "NameTable must contain atomized string.Empty");
xmlnsUri = _nameTable.Get(XmlReservedNs.NsXmlNs);
// Read past Initial state; if there are no more events then load is complete
if (topLevelReader && !reader.Read())
return;
// Read all events
do
{
// If reader began in intermediate state, return when all siblings have been read
if (!topLevelReader && reader.Depth < initialDepth)
return;
switch (reader.NodeType)
{
case XmlNodeType.Element:
{
bool isEmptyElement = reader.IsEmptyElement;
builder.WriteStartElement(reader.Prefix, reader.LocalName, reader.NamespaceURI, reader.BaseURI);
// Add attribute and namespace nodes to element
while (reader.MoveToNextAttribute())
{
string namespaceUri = reader.NamespaceURI;
if ((object)namespaceUri == (object)xmlnsUri)
{
if (reader.Prefix.Length == 0)
{
// Default namespace declaration "xmlns"
Debug.Assert(reader.LocalName == "xmlns");
builder.WriteNamespaceDeclaration(string.Empty, reader.Value);
}
else
{
Debug.Assert(reader.Prefix == "xmlns");
builder.WriteNamespaceDeclaration(reader.LocalName, reader.Value);
}
}
else
{
builder.WriteStartAttribute(reader.Prefix, reader.LocalName, namespaceUri);
builder.WriteString(reader.Value, TextBlockType.Text);
builder.WriteEndAttribute();
}
}
if (isEmptyElement)
builder.WriteEndElement(true);
break;
}
case XmlNodeType.EndElement:
builder.WriteEndElement(false);
break;
case XmlNodeType.Text:
case XmlNodeType.CDATA:
builder.WriteString(reader.Value, TextBlockType.Text);
break;
case XmlNodeType.SignificantWhitespace:
if (reader.XmlSpace == XmlSpace.Preserve)
builder.WriteString(reader.Value, TextBlockType.SignificantWhitespace);
else
// Significant whitespace without xml:space="preserve" is not significant in XPath/XQuery data model
goto case XmlNodeType.Whitespace;
break;
case XmlNodeType.Whitespace:
// We intentionally ignore the reader.XmlSpace property here and blindly trust
// the reported node type. If the reported information is not in sync
// (in this case if the reader.XmlSpace == Preserve) then we make the choice
// to trust the reported node type. Since we have no control over the input reader
// we can't even assert here.
// Always filter top-level whitespace
if (space == XmlSpace.Preserve && (!topLevelReader || reader.Depth != 0))
builder.WriteString(reader.Value, TextBlockType.Whitespace);
break;
case XmlNodeType.Comment:
builder.WriteComment(reader.Value);
break;
case XmlNodeType.ProcessingInstruction:
builder.WriteProcessingInstruction(reader.LocalName, reader.Value, reader.BaseURI);
break;
case XmlNodeType.EntityReference:
reader.ResolveEntity();
break;
case XmlNodeType.DocumentType:
// Create ID tables
IDtdInfo info = reader.DtdInfo;
if (info != null)
builder.CreateIdTables(info);
break;
case XmlNodeType.EndEntity:
case XmlNodeType.None:
case XmlNodeType.XmlDeclaration:
break;
}
}
while (reader.Read());
}
finally
{
builder.Close();
}
}
private void ReadElementFrom(XmlReader r, LoadOptions o)
{
if (r.ReadState != ReadState.Interactive) throw new InvalidOperationException(SR.InvalidOperation_ExpectedInteractive);
name = XNamespace.Get(r.NamespaceURI).GetName(r.LocalName);
if ((o & LoadOptions.SetBaseUri) != 0)
{
string baseUri = r.BaseURI;
if (!string.IsNullOrEmpty(baseUri))
{
SetBaseUri(baseUri);
}
}
IXmlLineInfo li = null;
if ((o & LoadOptions.SetLineInfo) != 0)
{
li = r as IXmlLineInfo;
if (li != null && li.HasLineInfo())
{
SetLineInfo(li.LineNumber, li.LinePosition);
}
}
if (r.MoveToFirstAttribute())
{
do
{
XAttribute a = new XAttribute(XNamespace.Get(r.Prefix.Length == 0 ? string.Empty : r.NamespaceURI).GetName(r.LocalName), r.Value);
if (li != null && li.HasLineInfo())
{
a.SetLineInfo(li.LineNumber, li.LinePosition);
}
AppendAttributeSkipNotify(a);
} while (r.MoveToNextAttribute());
r.MoveToElement();
}
if (!r.IsEmptyElement)
{
r.Read();
ReadContentFrom(r, o);
}
r.Read();
}
internal static void BuildSubtree(XmlReader reader, XmlWriter writer)
{
// important (perf) string literal...
string xmlnsUri = XmlConst.ReservedNsXmlNs; // http://www.w3.org/2000/xmlns/
ReadState readState = reader.ReadState;
if (readState != ReadState.Initial
&& readState != ReadState.Interactive)
{
throw new ArgumentException(SR.Xml_InvalidOperation, "reader");
}
int level = 0;
if (readState == ReadState.Initial)
{
if (!reader.Read())
return;
level++; // if start in initial, read everything (not just first)
}
do
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
writer.WriteStartElement(reader.Prefix, reader.LocalName, reader.NamespaceURI);
bool isEmptyElement = reader.IsEmptyElement;
while (reader.MoveToNextAttribute())
{
if ((object)reader.NamespaceURI == (object)xmlnsUri)
{
if (reader.Prefix.Length == 0)
{
// Default namespace declaration "xmlns"
Debug.Assert(reader.LocalName == "xmlns");
writer.WriteAttributeString("", "xmlns", xmlnsUri, reader.Value);
}
else
{
Debug.Assert(reader.Prefix == "xmlns");
writer.WriteAttributeString("xmlns", reader.LocalName, xmlnsUri, reader.Value);
}
}
else
{
writer.WriteStartAttribute(reader.Prefix, reader.LocalName, reader.NamespaceURI);
writer.WriteString(reader.Value);
writer.WriteEndAttribute();
}
}
reader.MoveToElement();
if (isEmptyElement)
{
// there might still be a value, if there is a default value specified in the schema
writer.WriteEndElement();
}
else
{
level++;
}
break;
case XmlNodeType.EndElement:
writer.WriteFullEndElement();
//should not read beyond the level of the reader's original position.
level--;
break;
case XmlNodeType.Text:
case XmlNodeType.CDATA:
writer.WriteString(reader.Value);
break;
case XmlNodeType.SignificantWhitespace:
case XmlNodeType.Whitespace:
writer.WriteString(reader.Value);
break;
case XmlNodeType.Comment:
writer.WriteComment(reader.Value);
break;
case XmlNodeType.ProcessingInstruction:
writer.WriteProcessingInstruction(reader.LocalName, reader.Value);
break;
case XmlNodeType.EntityReference:
reader.ResolveEntity();
break;
case XmlNodeType.EndEntity:
case XmlNodeType.None:
case XmlNodeType.DocumentType:
case XmlNodeType.XmlDeclaration:
break;
case XmlNodeType.Attribute:
if ((object)reader.NamespaceURI == (object)xmlnsUri)
{
if (reader.Prefix.Length == 0)
{
// Default namespace declaration "xmlns"
Debug.Assert(reader.LocalName == "xmlns");
writer.WriteAttributeString("", "xmlns", xmlnsUri, reader.Value);
}
else
{
Debug.Assert(reader.Prefix == "xmlns");
writer.WriteAttributeString("xmlns", reader.LocalName, xmlnsUri, reader.Value);
}
}
else
{
writer.WriteStartAttribute(reader.Prefix, reader.LocalName, reader.NamespaceURI);
writer.WriteString(reader.Value);
writer.WriteEndAttribute();
}
break;
}
}
while (reader.Read() && (level > 0));
}
private void ReadAttributes( XPathElement parent, XmlReader reader ) {
XPathNamespace last = null;
while(reader.MoveToNextAttribute()) {
documentIndex++;
if ((object)reader.NamespaceURI == (object)xmlnsUri) {
XPathNamespace tmp = new XPathNamespace(reader.Prefix == string.Empty ? string.Empty : reader.LocalName, reader.Value, documentIndex);
tmp.next = last;
last = tmp;
}
else {
parent.AppendAttribute(new XPathAttribute(reader.Prefix, reader.LocalName, reader.NamespaceURI, reader.Value, documentIndex));
if (htElementIdMap != null) {
Object attrname = htElementIdMap[new XmlQualifiedName(parent.Name, parent.Prefix)] ;
if (attrname != null && new XmlQualifiedName(reader.Name, reader.Prefix).Equals(attrname)) {
if (htElementIDAttrDecl[reader.Value] == null) {
htElementIDAttrDecl.Add(reader.Value, parent);
}
}
}
}
}
if (last != null) {
parent.AppendNamespaces(last);
}
}