Major plugin refactor and cleanup.

Switched to POCO library for unified platform/library interface.
Deprecated the external module API. It was creating more problems than solving.
Removed most built-in libraries in favor of system libraries for easier maintenance.
Cleaned and secured code with help from static analyzers.

vendor/POCO/XML/include/Poco/DOM/DOMBuilder.h

@@ -0,0 +1,112 @@
+//
+// DOMBuilder.h
+//
+// Library: XML
+// Package: DOM
+// Module:  DOMBuilder
+//
+// Definition of the DOMBuilder class.
+//
+// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef DOM_DOMBuilder_INCLUDED
+#define DOM_DOMBuilder_INCLUDED
+
+
+#include "Poco/XML/XML.h"
+#include "Poco/SAX/ContentHandler.h"
+#include "Poco/SAX/LexicalHandler.h"
+#include "Poco/SAX/DTDHandler.h"
+#include "Poco/XML/XMLString.h"
+
+
+namespace Poco {
+namespace XML {
+
+
+class XMLReader;
+class Document;
+class InputSource;
+class AbstractNode;
+class AbstractContainerNode;
+class NamePool;
+
+
+class XML_API DOMBuilder: protected DTDHandler, protected ContentHandler, protected LexicalHandler
+	/// This class builds a tree representation of an
+	/// XML document, according to the W3C Document Object Model, Level 1 and 2
+	/// specifications.
+	///
+	/// The actual XML parsing is done by an XMLReader, which
+	/// must be supplied to the DOMBuilder.
+{
+public:
+	DOMBuilder(XMLReader& xmlReader, NamePool* pNamePool = 0);
+		/// Creates a DOMBuilder using the given XMLReader. 
+		/// If a NamePool is given, it becomes the Document's NamePool.
+
+	virtual ~DOMBuilder();
+		/// Destroys the DOMBuilder.
+
+	virtual Document* parse(const XMLString& uri);
+		/// Parse an XML document from a location identified by an URI.
+
+	virtual Document* parse(InputSource* pInputSource);
+		/// Parse an XML document from a location identified by an InputSource.
+
+	virtual Document* parseMemoryNP(const char* xml, std::size_t size);
+		/// Parses an XML document from memory.
+
+protected:
+	// DTDHandler
+	void notationDecl(const XMLString& name, const XMLString* publicId, const XMLString* systemId);
+	void unparsedEntityDecl(const XMLString& name, const XMLString* publicId, const XMLString& systemId, const XMLString& notationName);
+
+	// ContentHandler
+	void setDocumentLocator(const Locator* loc);
+	void startDocument();
+	void endDocument();
+	void startElement(const XMLString& uri, const XMLString& localName, const XMLString& qname, const Attributes& attributes);
+	void endElement(const XMLString& uri, const XMLString& localName, const XMLString& qname);
+	void characters(const XMLChar ch[], int start, int length);
+	void ignorableWhitespace(const XMLChar ch[], int start, int length);
+	void processingInstruction(const XMLString& target, const XMLString& data);
+	void startPrefixMapping(const XMLString& prefix, const XMLString& uri);
+	void endPrefixMapping(const XMLString& prefix);
+	void skippedEntity(const XMLString& name);
+
+	// LexicalHandler
+	void startDTD(const XMLString& name, const XMLString& publicId, const XMLString& systemId);
+	void endDTD();
+	void startEntity(const XMLString& name);
+	void endEntity(const XMLString& name);
+	void startCDATA();
+	void endCDATA();
+	void comment(const XMLChar ch[], int start, int length); 
+
+	void appendNode(AbstractNode* pNode);
+	
+	void setupParse();
+
+private:
+	static const XMLString EMPTY_STRING;
+
+	XMLReader&             _xmlReader;
+	NamePool*              _pNamePool;
+	Document*              _pDocument;
+	AbstractContainerNode* _pParent;
+	AbstractNode*          _pPrevious;
+	bool                   _inCDATA;
+	bool                   _namespaces;
+};
+
+
+} } // namespace Poco::XML
+
+
+#endif // DOM_DOMBuilder_INCLUDED