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/CharacterData.h

@@ -0,0 +1,123 @@
+//
+// CharacterData.h
+//
+// Library: XML
+// Package: DOM
+// Module:  DOM
+//
+// Definition of the DOM CharacterData class.
+//
+// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef DOM_CharacterData_INCLUDED
+#define DOM_CharacterData_INCLUDED
+
+
+#include "Poco/XML/XML.h"
+#include "Poco/DOM/AbstractNode.h"
+#include "Poco/XML/XMLString.h"
+
+
+namespace Poco {
+namespace XML {
+
+
+class XML_API CharacterData: public AbstractNode
+	/// The CharacterData interface extends Node with a set of attributes and methods
+	/// for accessing character data in the DOM. For clarity this set is defined
+	/// here rather than on each object that uses these attributes and methods.
+	/// No DOM objects correspond directly to CharacterData, though Text and others
+	/// do inherit the interface from it. All offsets in this interface start from 0.
+	/// 
+	/// Text strings in the DOM are represented in either UTF-8 (if XML_UNICODE_WCHAR_T is
+	/// not defined) or in UTF-16 (if XML_UNICODE_WCHAR_T is defined).
+	/// Indexing on character data is done in XMLChar units.
+{
+public:
+	const XMLString& data() const;
+		/// Returns the character data of the node that 
+		/// implements the interface.
+	
+	const XMLString& getData() const;
+		/// Returns the character data of the node that 
+		/// implements the interface.
+
+	void setData(const XMLString& data);
+		/// Sets the character data of the node that
+		/// implements the interface.
+
+	unsigned long length() const;
+		/// Returns the number of XMLChars that are available
+		/// through getData and substringData. This may have the
+		/// value zero.
+
+	XMLString substringData(unsigned long offset, unsigned long count) const;
+		/// Extracts a range of data from the node.
+		/// If offset and count exceeds the length, then all
+		/// the characters to the end of the data are returned.
+
+	void appendData(const XMLString& arg);
+		/// Append the string to the end of the character data
+		/// of the node.
+
+	void insertData(unsigned long offset, const XMLString& arg);
+		/// Insert a string at the specified character offset.
+
+	void deleteData(unsigned long offset, unsigned long count);
+		/// Remove a range of characters from the node.
+
+	void replaceData(unsigned long offset, unsigned long count, const XMLString& arg);
+		/// Replace the characters starting at the specified character
+		/// offset with the specified string.
+
+	// Non-standard extensions
+	XMLString trimmedData() const;
+		/// Returns the character data of that node with
+		/// all surrounding whitespace removed.
+		///
+		/// This method is an extension to the W3C Document Object Model.
+
+	// Node
+	const XMLString& getNodeValue() const;
+	void setNodeValue(const XMLString& value);
+
+protected:
+	CharacterData(Document* pOwnerDocument, const XMLString& data);
+	CharacterData(Document* pOwnerDocument, const CharacterData& data);
+	~CharacterData();
+
+private:
+	XMLString _data;
+};
+
+
+//
+// inlines
+//
+inline const XMLString& CharacterData::data() const
+{
+	return _data;
+}
+
+
+inline const XMLString& CharacterData::getData() const
+{
+	return _data;
+}
+
+
+inline unsigned long CharacterData::length() const
+{
+	return (unsigned long) _data.length();
+}
+
+
+} } // namespace Poco::XML
+
+
+#endif // DOM_CharacterData_INCLUDED