protected DocumentMarkupType parseContentDocument_DTD(Project project, XmlDocument xmlDoc, TreeNode parentTreeNode, string filePath, out string dtdUniqueResourceId)
{
dtdUniqueResourceId = null;
DocumentMarkupType docMarkupType = DocumentMarkupType.NA;
//xmlNode.OwnerDocument
string dtdID = xmlDoc.DocumentType == null ? string.Empty
: !string.IsNullOrEmpty(xmlDoc.DocumentType.SystemId) ? xmlDoc.DocumentType.SystemId
: !string.IsNullOrEmpty(xmlDoc.DocumentType.PublicId) ? xmlDoc.DocumentType.PublicId
: xmlDoc.DocumentType.Name;
string rootElemName = xmlDoc.DocumentElement.LocalName;
if (dtdID == @"html" &&
string.IsNullOrEmpty(xmlDoc.DocumentType.SystemId) &&
string.IsNullOrEmpty(xmlDoc.DocumentType.PublicId))
{
dtdID = @"html5";
docMarkupType = DocumentMarkupType.XHTML5;
DebugFix.Assert(rootElemName == @"html");
}
else if (dtdID.Contains(@"xhtml1")
//systemId.Contains(@"xhtml11.dtd")
//|| systemId.Contains(@"xhtml1-strict.dtd")
//|| systemId.Contains(@"xhtml1-transitional.dtd")
)
{
dtdID = @"http://www.w3.org/xhtml-math-svg-flat.dtd";
docMarkupType = DocumentMarkupType.XHTML;
DebugFix.Assert(rootElemName == @"html");
}
else if (rootElemName == @"dtbook")
{
docMarkupType = DocumentMarkupType.DTBOOK;
}
else if (rootElemName == @"html")
{
dtdID = @"html5";
docMarkupType = DocumentMarkupType.XHTML5;
}
if (docMarkupType == DocumentMarkupType.NA)
{
#if DEBUG
Debugger.Break();
#endif
}
if (string.IsNullOrEmpty(dtdID))
{
return(docMarkupType);
}
if (!string.IsNullOrEmpty(dtdID) && !dtdID.StartsWith(@"http://"))
{
dtdID = @"http://www.daisy.org/" + dtdID;
}
bool needToLoadDTDManuallyToCheckMixedContentElements = docMarkupType == DocumentMarkupType.XHTML5;
if (docMarkupType == DocumentMarkupType.DTBOOK)
{
XmlNode rootElement = XmlDocumentHelper.GetFirstChildElementOrSelfWithName(xmlDoc, true, "book", null);
DebugFix.Assert(rootElement != null);
if (rootElement != null)
{
XmlAttributeCollection attrs = rootElement.Attributes;
if (attrs != null)
{
XmlNode attr = attrs.GetNamedItem("space", XmlReaderWriterHelper.NS_URL_XML);
if (attr == null)
{
attr = attrs.GetNamedItem("xml:space", XmlReaderWriterHelper.NS_URL_XML);
}
if (attr != null && attr.Value == "preserve")
{
//Bookshare hack! :(
needToLoadDTDManuallyToCheckMixedContentElements = true;
}
}
}
}
if (!needToLoadDTDManuallyToCheckMixedContentElements)
{
return(docMarkupType);
}
bool isHTML = docMarkupType == DocumentMarkupType.XHTML || docMarkupType == DocumentMarkupType.XHTML5;
#if ENABLE_DTDSHARP
Stream dtdStream = LocalXmlUrlResolver.mapUri(new Uri(dtdID, UriKind.Absolute), out dtdUniqueResourceId);
if (!string.IsNullOrEmpty(dtdUniqueResourceId))
{
DebugFix.Assert(dtdStream != null);
List <string> list;
m_listOfMixedContentXmlElementNames.TryGetValue(dtdUniqueResourceId, out list);
if (list == null)
{
if (dtdStream != null)
{
list = new List <string>();
m_listOfMixedContentXmlElementNames.Add(dtdUniqueResourceId, list);
initMixedContentXmlElementNamesFromDTD(dtdUniqueResourceId, dtdStream);
}
else
{
#if DEBUG
Debugger.Break();
#endif
}
}
else
{
if (dtdStream != null)
{
dtdStream.Close();
}
}
}
else
{
#if DEBUG
Debugger.Break();
#endif
}
#else
dtdUniqueResourceId = dtdID;
List <string> list;
m_listOfMixedContentXmlElementNames.TryGetValue(dtdUniqueResourceId, out list);
if (list != null)
{
return(docMarkupType);
}
list = new List <string>();
m_listOfMixedContentXmlElementNames.Add(dtdUniqueResourceId, list);
IXmlReader reader = null;
//string dll = @"SaxNET.dll";
////#if NET40
//// dll = @"\SaxNET_NET4.dll";
////#endif
//string appFolder = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
//string dtdPath = Path.Combine(appFolder, dll);
//Assembly assembly = Assembly.LoadFrom(dtdPath);
// try
// {
// reader = SaxReaderFactory.CreateReader(assembly, null);
// }
// catch (Exception e)
// {
//#if DEBUG
// Debugger.Break();
//#endif
// }
bool useCSharpSaxImpl = IsRunning64(); // docMarkupType == DocumentMarkupType.XHTML5;
if (useCSharpSaxImpl)
{
reader = new SaxDriver();
}
else
{
reader = new ExpatReader();
}
DebugFix.Assert(reader != null);
if (reader == null)
{
return(docMarkupType);
}
//Type readerType = reader.GetType();
reader.EntityResolver = new SaxEntityResolver();
SaxErrorHandler errorHandler = new SaxErrorHandler();
reader.ErrorHandler = errorHandler;
if (reader is SaxDriver)
{
//"namespaces"
try
{
reader.SetFeature(Constants.NamespacesFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
//"namespace-prefixes"
try
{
reader.SetFeature(Constants.NamespacePrefixesFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
//"external-general-entities"
try
{
reader.SetFeature(Constants.ExternalGeneralFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
//"external-parameter-entities"
try
{
reader.SetFeature(Constants.ExternalParameterFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
//"xmlns-uris"
try
{
reader.SetFeature(Constants.XmlNsUrisFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
//"resolve-dtd-uris"
try
{
reader.SetFeature(Constants.ResolveDtdUrisFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
}
if (reader is ExpatReader)
{
// http://xml.org/sax/features/namespaces
try
{
reader.SetFeature(Constants.NamespacesFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
// http://xml.org/sax/features/external-general-entities
try
{
reader.SetFeature(Constants.ExternalGeneralFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
// http://xml.org/sax/features/external-parameter-entities
try
{
reader.SetFeature(Constants.ExternalParameterFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
// http://xml.org/sax/features/resolve-dtd-uris
try
{
reader.SetFeature(Constants.ResolveDtdUrisFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
// http://xml.org/sax/features/lexical-handler/parameter-entities
try
{
reader.SetFeature(Constants.LexicalParameterFeature, true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
if (false)
{
try
{
reader.SetFeature("http://kd-soft.net/sax/features/skip-internal-entities",
false);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
try
{
reader.SetFeature(
"http://kd-soft.net/sax/features/parse-unless-standalone", true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
try
{
reader.SetFeature("http://kd-soft.net/sax/features/parameter-entities", true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
try
{
reader.SetFeature("http://kd-soft.net/sax/features/standalone-error", true);
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
}
}
// SUPPORTED, but then NOT SUPPORTED (deeper inside Expat C# wrapper code)
// // http://xml.org/sax/features/namespace-prefixes
// try
// {
// reader.SetFeature(Constants.NamespacePrefixesFeature, true);
// }
// catch (Exception e)
// {
//#if DEBUG
// Debugger.Break();
//#endif
// }
// // http://xml.org/sax/features/xmlns-uris
// try
// {
// reader.SetFeature(Constants.XmlNsUrisFeature, true);
// }
// catch (Exception e)
// {
//#if DEBUG
// Debugger.Break();
//#endif
// }
// // http://xml.org/sax/features/validation
// try
// {
// reader.SetFeature(Constants.ValidationFeature, true);
// }
// catch (Exception e)
// {
//#if DEBUG
// Debugger.Break();
//#endif
// }
// // http://xml.org/sax/features/unicode-normalization-checking
// try
// {
// reader.SetFeature(Constants.UnicodeNormCheckFeature, true);
// }
// catch (Exception e)
// {
//#if DEBUG
// Debugger.Break();
//#endif
// }
// NOT SUPPORTED:
// http://xml.org/sax/features/xml-1.1
// try
// {
// reader.SetFeature(Constants.Xml11Feature, true);
// }
// catch (Exception e)
// {
//#if DEBUG
// Debugger.Break();
//#endif
// }
// http://xml.org/sax/features/xml-declaration
// try
// {
// reader.SetFeature(Constants.XmlDeclFeature, true);
// }
// catch (Exception e)
// {
//#if DEBUG
// Debugger.Break();
//#endif
// }
// http://xml.org/sax/features/use-external-subset
// try
// {
// reader.SetFeature(Constants.UseExternalSubsetFeature, true);
// }
// catch (Exception e)
// {
//#if DEBUG
// Debugger.Break();
//#endif
// }
// http://xml.org/sax/features/reader-control
// try
// {
// reader.SetFeature(Constants.ReaderControlFeature, true);
// }
// catch (Exception e)
// {
//#if DEBUG
// Debugger.Break();
//#endif
// }
}
SaxContentHandler handler = new SaxContentHandler(list);
try
{
reader.DtdHandler = handler;
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
errorHandler.AddMessage("Cannot set dtd handler: " + e.Message);
}
try
{
reader.ContentHandler = handler;
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
errorHandler.AddMessage("Cannot set content handler: " + e.Message);
}
try
{
reader.LexicalHandler = handler;
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
errorHandler.AddMessage("Cannot set lexical handler: " + e.Message);
}
try
{
reader.DeclHandler = handler;
}
catch (Exception e)
{
#if DEBUG
Debugger.Break();
#endif
errorHandler.AddMessage("Cannot set declaration handler: " + e.Message);
}
string rootElementName = isHTML ? @"html" : @"dtbook";
string dtdWrapper = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><!DOCTYPE " + rootElementName + " SYSTEM \"" + dtdID + "\"><" + rootElementName + "></" + rootElementName + ">";
//StringReader strReader = new StringReader(dtdWrapper);
Stream stream = new MemoryStream(Encoding.UTF8.GetBytes(dtdWrapper));
TextReader txtReader = new StreamReader(stream, Encoding.UTF8);
InputSource input = new InputSource <TextReader>(txtReader, dtdID + "/////SYSID");
input.Encoding = "UTF-8";
input.PublicId = "??";
reader.Parse(input);
#endif //ENABLE_DTDSHARP
return(docMarkupType);
}
/*
* Set the handler that will receive parsing events.
* @param handler The handler to receive callback events.
* @see #parse
*/
// package private
internal void setHandler(SaxDriver handler)
{
this.handler = handler;
}
