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/*
 *
 * Copyright (c) 2004
 * John Maddock
 *
 * Use, modification and distribution are subject to the 
 * Boost Software License, Version 1.0. (See accompanying file 
 * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 *
 */
 
 /*
  *   LOCATION:    see http://www.boost.org for most recent version.
  *   FILE         unicode_iterator.hpp
  *   VERSION      see <boost/version.hpp>
  *   DESCRIPTION: Iterator adapters for converting between different Unicode encodings.
  */

/****************************************************************************

Contents:
~~~~~~~~~

1) Read Only, Input Adapters:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

template <class BaseIterator, class U8Type = ::boost::uint8_t>
class u32_to_u8_iterator;

Adapts sequence of UTF-32 code points to "look like" a sequence of UTF-8.

template <class BaseIterator, class U32Type = ::boost::uint32_t>
class u8_to_u32_iterator;

Adapts sequence of UTF-8 code points to "look like" a sequence of UTF-32.

template <class BaseIterator, class U16Type = ::boost::uint16_t>
class u32_to_u16_iterator;

Adapts sequence of UTF-32 code points to "look like" a sequence of UTF-16.

template <class BaseIterator, class U32Type = ::boost::uint32_t>
class u16_to_u32_iterator;

Adapts sequence of UTF-16 code points to "look like" a sequence of UTF-32.

2) Single pass output iterator adapters:

template <class BaseIterator>
class utf8_output_iterator;

Accepts UTF-32 code points and forwards them on as UTF-8 code points.

template <class BaseIterator>
class utf16_output_iterator;

Accepts UTF-32 code points and forwards them on as UTF-16 code points.

****************************************************************************/

#ifndef BOOST_REGEX_UNICODE_ITERATOR_HPP
#define BOOST_REGEX_UNICODE_ITERATOR_HPP
#include <boost/cstdint.hpp>
#include <boost/assert.hpp>
#include <boost/iterator/iterator_facade.hpp>
#include <boost/static_assert.hpp>
#include <boost/throw_exception.hpp>
#include <stdexcept>
#ifndef BOOST_NO_STD_LOCALE
#include <sstream>
#endif

namespace boost{