public QueryOutputWriter(XmlRawWriter writer, XmlWriterSettings settings)
{
_wrapped = writer;
_systemId = settings.DocTypeSystem;
_publicId = settings.DocTypePublic;
if (settings.OutputMethod == XmlOutputMethod.Xml)
{
// Xml output method shouldn't output doc-type-decl if system ID is not defined (even if public ID is)
// Only check for well-formed document if output method is xml
if (_systemId != null)
{
_outputDocType = true;
_checkWellFormedDoc = true;
}
// Check for well-formed document if standalone="yes" in an auto-generated xml declaration
if (settings.AutoXmlDeclaration && settings.Standalone == XmlStandalone.Yes)
{
_checkWellFormedDoc = true;
}
if (settings.CDataSectionElements.Count > 0)
{
_bitsCData = new BitStack();
_lookupCDataElems = new Dictionary <XmlQualifiedName, int>();
_qnameCData = new XmlQualifiedName();
// Add each element name to the lookup table
foreach (XmlQualifiedName name in settings.CDataSectionElements)
{
_lookupCDataElems[name] = 0;
}
_bitsCData.PushBit(false);
}
}
else if (settings.OutputMethod == XmlOutputMethod.Html)
{
// Html output method should output doc-type-decl if system ID or public ID is defined
if (_systemId != null || _publicId != null)
{
_outputDocType = true;
}
}
}
/// <summary>
/// Check well-formedness, possibly output doc-type-decl, and determine whether this element is a
/// CData section element.
/// </summary>
public override void WriteStartElement(string prefix, string localName, string ns)
{
EndCDataSection();
if (_checkWellFormedDoc)
{
// Don't allow multiple document elements
if (_depth == 0 && _hasDocElem)
{
throw new XmlException(ResXml.Xml_NoMultipleRoots, string.Empty);
}
_depth++;
_hasDocElem = true;
}
// Output doc-type declaration immediately before first element is output
if (_outputDocType)
{
_wrapped.WriteDocType(
prefix.Length != 0 ? prefix + ":" + localName : localName,
_publicId,
_systemId,
null);
_outputDocType = false;
}
_wrapped.WriteStartElement(prefix, localName, ns);
if (_lookupCDataElems != null)
{
// Determine whether this element is a CData section element
_qnameCData.Init(localName, ns);
_bitsCData.PushBit(_lookupCDataElems.ContainsKey(_qnameCData));
}
}