/*
 * Copyright 1999-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#if !defined(XALANLOCATOR_HEADER_GUARD_1357924680)
#define XALANLOCATOR_HEADER_GUARD_1357924680


// Base include file.  Must be first.
#include <xalanc/PlatformSupport/PlatformSupportDefinitions.hpp>


#include <xercesc/sax/Locator.hpp>


XALAN_CPP_NAMESPACE_BEGIN


/**
 * This class defines a base class for Locator derivations in Xalan.  It was defined
 * because Xerces made changes in their Locator class which caused turbulence.
 */
class XALAN_PLATFORMSUPPORT_EXPORT XalanLocator : public XERCES_CPP_NAMESPACE_QUALIFIER Locator
{
public:

	typedef XERCES_CPP_NAMESPACE_QUALIFIER Locator	ParentType;

#if XERCES_VERSION_MAJOR >= 2
	typedef XMLSSize_t	size_type;
#else
	typedef int			size_type;
#endif

	XalanLocator() {}

	virtual
	~XalanLocator() {}

	virtual const XMLCh*
	getPublicId() const = 0;

	virtual const XMLCh*
	getSystemId() const = 0;

	virtual size_type
	getLineNumber() const = 0;

	virtual size_type
	getColumnNumber() const = 0;

	static size_type
	getLineNumber(const ParentType*		theLocator)
	{
		return theLocator == 0 ? size_type(-1) : theLocator->getLineNumber();
	}

	static size_type
	getColumnNumber(const ParentType*	theLocator)
	{
		return theLocator == 0 ? size_type(-1) : theLocator->getColumnNumber();
	}

	static size_type
	getUnknownValue()
	{
		return size_type(-1);
	}

private:

	// Not defined...
	XalanLocator(const XalanLocator&);

	XalanLocator&
	operator=(const XalanLocator&);

};


XALAN_CPP_NAMESPACE_END


#endif	// PREFIXRESOLVER_HEADER_GUARD_1357924680