public override bool Read()
{
if (_laterInitParam != null)
{
FinishInit();
}
for (;;)
{
switch (_parsingFunction)
{
case ParsingFunction.ElementContent:
return ParseElementContent();
case ParsingFunction.DocumentContent:
return ParseDocumentContent();
case ParsingFunction.OpenUrl:
OpenUrl();
Debug.Assert(_nextParsingFunction == ParsingFunction.DocumentContent);
goto case ParsingFunction.SwitchToInteractiveXmlDecl;
case ParsingFunction.SwitchToInteractive:
Debug.Assert(!_ps.appendMode);
_readState = ReadState.Interactive;
_parsingFunction = _nextParsingFunction;
continue;
case ParsingFunction.SwitchToInteractiveXmlDecl:
_readState = ReadState.Interactive;
_parsingFunction = _nextParsingFunction;
if (ParseXmlDeclaration(false))
{
_reportedEncoding = _ps.encoding;
return true;
}
_reportedEncoding = _ps.encoding;
continue;
case ParsingFunction.ResetAttributesRootLevel:
ResetAttributes();
_curNode = _nodes[_index];
_parsingFunction = (_index == 0) ? ParsingFunction.DocumentContent : ParsingFunction.ElementContent;
continue;
case ParsingFunction.MoveToElementContent:
ResetAttributes();
_index++;
_curNode = AddNode(_index, _index);
_parsingFunction = ParsingFunction.ElementContent;
continue;
case ParsingFunction.PopElementContext:
PopElementContext();
_parsingFunction = _nextParsingFunction;
Debug.Assert(_parsingFunction == ParsingFunction.ElementContent ||
_parsingFunction == ParsingFunction.DocumentContent);
continue;
case ParsingFunction.PopEmptyElementContext:
_curNode = _nodes[_index];
Debug.Assert(_curNode.type == XmlNodeType.Element);
_curNode.IsEmptyElement = false;
ResetAttributes();
PopElementContext();
_parsingFunction = _nextParsingFunction;
continue;
case ParsingFunction.EntityReference:
_parsingFunction = _nextParsingFunction;
ParseEntityReference();
return true;
case ParsingFunction.ReportEndEntity:
SetupEndEntityNodeInContent();
_parsingFunction = _nextParsingFunction;
return true;
case ParsingFunction.AfterResolveEntityInContent:
_curNode = AddNode(_index, _index);
_reportedEncoding = _ps.encoding;
_reportedBaseUri = _ps.baseUriStr;
_parsingFunction = _nextParsingFunction;
continue;
case ParsingFunction.AfterResolveEmptyEntityInContent:
_curNode = AddNode(_index, _index);
_curNode.SetValueNode(XmlNodeType.Text, string.Empty);
_curNode.SetLineInfo(_ps.lineNo, _ps.LinePos);
_reportedEncoding = _ps.encoding;
_reportedBaseUri = _ps.baseUriStr;
_parsingFunction = _nextParsingFunction;
return true;
case ParsingFunction.InReadAttributeValue:
FinishAttributeValueIterator();
_curNode = _nodes[_index];
continue;
case ParsingFunction.InIncrementalRead:
FinishIncrementalRead();
return true;
case ParsingFunction.FragmentAttribute:
return ParseFragmentAttribute();
case ParsingFunction.XmlDeclarationFragment:
ParseXmlDeclarationFragment();
_parsingFunction = ParsingFunction.GoToEof;
return true;
case ParsingFunction.GoToEof:
OnEof();
return false;
case ParsingFunction.Error:
case ParsingFunction.Eof:
case ParsingFunction.ReaderClosed:
return false;
case ParsingFunction.NoData:
ThrowWithoutLineInfo(SR.Xml_MissingRoot);
return false;
case ParsingFunction.PartialTextValue:
SkipPartialTextValue();
continue;
case ParsingFunction.InReadValueChunk:
FinishReadValueChunk();
continue;
case ParsingFunction.InReadContentAsBinary:
FinishReadContentAsBinary();
continue;
case ParsingFunction.InReadElementContentAsBinary:
FinishReadElementContentAsBinary();
continue;
default:
Debug.Assert(false);
break;
}
}
}
internal static void ParseXmlDeclarationValue(string strValue, out string version, out string encoding, out string standalone)
{
version = null;
encoding = null;
standalone = null;
XmlTextReaderImpl impl = new XmlTextReaderImpl(strValue, null);
try
{
impl.Read();
if (impl.MoveToAttribute("version"))
{
version = impl.Value;
}
if (impl.MoveToAttribute("encoding"))
{
encoding = impl.Value;
}
if (impl.MoveToAttribute("standalone"))
{
standalone = impl.Value;
}
}
finally
{
impl.Close();
}
}
