//
// XMLStream.h
//
// $Id: //poco/svn/XML/include/Poco/XML/XMLStream.h#2 $
//
// Library: XML
// Package: XML
// Module:  XMLStream
//
// Definition of the XMLByteInputStream and XMLCharInputStream classes.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#ifndef XML_XMLStream_INCLUDED
#define XML_XMLStream_INCLUDED


#include "Poco/XML/XML.h"
#include <istream>
#include <ostream>


namespace Poco {
namespace XML {


// The byte input stream is always a narrow stream.
typedef std::istream XMLByteInputStream;
typedef std::ostream XMLByteOutputStream;


//
// The XML parser uses the stream classes provided by the C++
// standard library (based on the basic_stream<> template).
// In Unicode mode, a wide stream is used.
// To turn on Unicode mode, #define XML_UNICODE and
// XML_UNICODE_WCHAR_T when compiling the library.
//
// XML_UNICODE  XML_UNICODE_WCHAR_T  XMLCharInputStream  XMLCharOutputStream
// -------------------------------------------------------------------------
//     N                 N           std::istream        std::ostream
//     N                 Y           std::wistream       std::wostream
//     Y                 Y           std::wistream       std::wostream
//     Y                 N           <not supported>
//
#if defined(XML_UNICODE_WCHAR_T)

	// Unicode - use wide streams
	typedef std::wistream XMLCharInputStream;
	typedef std::wostream XMLCharOutputStream;

#elif defined(XML_UNICODE)

	// not supported - leave XMLString undefined

#else

	// Characters are UTF-8 encoded
	typedef std::istream XMLCharInputStream;
	typedef std::ostream XMLCharOutputStream;

#endif


} } // namespace Poco::XML


#endif // XML_XMLStream_INCLUDED
