4 files changed, 0 insertions, 1039 deletions
diff --git a/3rdParty/Boost b/3rdParty/Boost
new file mode 160000
+Subproject 3bbdbc8cf1996f23d9a366da8bac0f97be6ad79
diff --git a/3rdParty/Boost/boost/regex/pending/object_cache.hpp b/3rdParty/Boost/boost/regex/pending/object_cache.hpp
deleted file mode 100644
index 2a7e00b..0000000
--- a/3rdParty/Boost/boost/regex/pending/object_cache.hpp
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- *
- * 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         object_cache.hpp
-  *   VERSION      see <boost/version.hpp>
-  *   DESCRIPTION: Implements a generic object cache.
-  */
-
-#ifndef BOOST_REGEX_OBJECT_CACHE_HPP
-#define BOOST_REGEX_OBJECT_CACHE_HPP
-
-#include <map>
-#include <list>
-#include <stdexcept>
-#include <string>
-#include <boost/config.hpp>
-#include <boost/shared_ptr.hpp>
-#ifdef BOOST_HAS_THREADS
-#include <boost/regex/pending/static_mutex.hpp>
-#endif
-
-namespace boost{
-
-template <class Key, class Object>
-class object_cache
-{
-public:
-   typedef std::pair< ::boost::shared_ptr<Object const>, Key const*> value_type;
-   typedef std::list<value_type> list_type;
-   typedef typename list_type::iterator list_iterator;
-   typedef std::map<Key, list_iterator> map_type;
-   typedef typename map_type::iterator map_iterator;
-   typedef typename list_type::size_type size_type;
-   static boost::shared_ptr<Object const> get(const Key& k, size_type max_cache_size);
-
-private:
-   static boost::shared_ptr<Object const> do_get(const Key& k, size_type max_cache_size);
-
-   struct data
-   {
-      list_type   cont;
-      map_type    index;
-   };
-
-   // Needed by compilers not implementing the resolution to DR45. For reference,
-   // see http://www.open-std.org/JTC1/SC22/WG21/docs/cwg_defects.html#45.
-   friend struct data;
-};
-
-template <class Key, class Object>
-boost::shared_ptr<Object const> object_cache<Key, Object>::get(const Key& k, size_type max_cache_size)
-{
-#ifdef BOOST_HAS_THREADS
-   static boost::static_mutex mut = BOOST_STATIC_MUTEX_INIT;
-
-   boost::static_mutex::scoped_lock l(mut);
-   if(l)
-   {
-      return do_get(k, max_cache_size);
-   }
-   //
-   // what do we do if the lock fails?
-   // for now just throw, but we should never really get here...
-   //
-   ::boost::throw_exception(std::runtime_error("Error in thread safety code: could not acquire a lock"));
-   return boost::shared_ptr<Object>();
-#else
-   return do_get(k, max_cache_size);
-#endif
-}
-
-template <class Key, class Object>
-boost::shared_ptr<Object const> object_cache<Key, Object>::do_get(const Key& k, size_type max_cache_size)
-{
-   typedef typename object_cache<Key, Object>::data object_data;
-   typedef typename map_type::size_type map_size_type;
-   static object_data s_data;
-
-   //
-   // see if the object is already in the cache:
-   //
-   map_iterator mpos = s_data.index.find(k);
-   if(mpos != s_data.index.end())
-   {
-      //
-      // Eureka! 
-      // We have a cached item, bump it up the list and return it:
-      //
-      if(--(s_data.cont.end()) != mpos->second)
-      {
-         // splice out the item we want to move:
-         list_type temp;
-         temp.splice(temp.end(), s_data.cont, mpos->second);
-         // and now place it at the end of the list:
-         s_data.cont.splice(s_data.cont.end(), temp, temp.begin());
-         BOOST_ASSERT(*(s_data.cont.back().second) == k);
-         // update index with new position:
-         mpos->second = --(s_data.cont.end());
-         BOOST_ASSERT(&(mpos->first) == mpos->second->second);
-         BOOST_ASSERT(&(mpos->first) == s_data.cont.back().second);
-      }
-      return s_data.cont.back().first;
-   }
-   //
-   // if we get here then the item is not in the cache,
-   // so create it:
-   //
-   boost::shared_ptr<Object const> result(new Object(k));
-   //
-   // Add it to the list, and index it:
-   //
-   s_data.cont.push_back(value_type(result, static_cast<Key const*>(0)));
-   s_data.index.insert(std::make_pair(k, --(s_data.cont.end())));
-   s_data.cont.back().second = &(s_data.index.find(k)->first);
-   map_size_type s = s_data.index.size();
-   BOOST_ASSERT(s_data.index[k]->first.get() == result.get());
-   BOOST_ASSERT(&(s_data.index.find(k)->first) == s_data.cont.back().second);
-   BOOST_ASSERT(s_data.index.find(k)->first == k);
-   if(s > max_cache_size)
-   {
-      //
-      // We have too many items in the list, so we need to start
-      // popping them off the back of the list, but only if they're
-      // being held uniquely by us:
-      //
-      list_iterator pos = s_data.cont.begin();
-      list_iterator last = s_data.cont.end();
-      while((pos != last) && (s > max_cache_size))
-      {
-         if(pos->first.unique())
-         {
-            list_iterator condemmed(pos);
-            ++pos;
-            // now remove the items from our containers, 
-            // then order has to be as follows:
-            BOOST_ASSERT(s_data.index.find(*(condemmed->second)) != s_data.index.end());
-            s_data.index.erase(*(condemmed->second));
-            s_data.cont.erase(condemmed); 
-            --s;
-         }
-         else
-            --pos;
-      }
-      BOOST_ASSERT(s_data.index[k]->first.get() == result.get());
-      BOOST_ASSERT(&(s_data.index.find(k)->first) == s_data.cont.back().second);
-      BOOST_ASSERT(s_data.index.find(k)->first == k);
-   }
-   return result;
-}
-
-}
-
-#endif
diff --git a/3rdParty/Boost/boost/regex/pending/static_mutex.hpp b/3rdParty/Boost/boost/regex/pending/static_mutex.hpp
deleted file mode 100644
index 218169c..0000000
--- a/3rdParty/Boost/boost/regex/pending/static_mutex.hpp
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
- *
- * 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         static_mutex.hpp
-  *   VERSION      see <boost/version.hpp>
-  *   DESCRIPTION: Declares static_mutex lock type, there are three different
-  *                implementations: POSIX pthreads, WIN32 threads, and portable,
-  *                these are described in more detail below.
-  */
-
-#ifndef BOOST_REGEX_STATIC_MUTEX_HPP
-#define BOOST_REGEX_STATIC_MUTEX_HPP
-
-#include <boost/config.hpp>
-#include <boost/regex/config.hpp> // dll import/export options.
-
-#ifdef BOOST_HAS_PTHREADS
-#include <pthread.h>
-#endif
-
-#if defined(BOOST_HAS_PTHREADS) && defined(PTHREAD_MUTEX_INITIALIZER)
-//
-// pthreads version:
-// simple wrap around a pthread_mutex_t initialized with
-// PTHREAD_MUTEX_INITIALIZER.
-//
-namespace boost{
-
-class BOOST_REGEX_DECL scoped_static_mutex_lock;
-
-class static_mutex
-{
-public:
-   typedef scoped_static_mutex_lock scoped_lock;
-   pthread_mutex_t m_mutex;
-};
-
-#define BOOST_STATIC_MUTEX_INIT { PTHREAD_MUTEX_INITIALIZER, }
-
-class BOOST_REGEX_DECL scoped_static_mutex_lock
-{
-public:
-   scoped_static_mutex_lock(static_mutex& mut, bool lk = true);
-   ~scoped_static_mutex_lock();
-   inline bool locked()const
-   {
-      return m_have_lock;
-   }
-   inline operator void const*()const
-   {
-      return locked() ? this : 0;
-   }
-   void lock();
-   void unlock();
-private:
-   static_mutex& m_mutex;
-   bool m_have_lock;
-};
-
-
-} // namespace boost
-#elif defined(BOOST_HAS_WINTHREADS)
-//
-// Win32 version:
-// Use a 32-bit int as a lock, along with a test-and-set
-// implementation using InterlockedCompareExchange.
-//
-
-#include <boost/cstdint.hpp>
-
-namespace boost{
-
-class BOOST_REGEX_DECL scoped_static_mutex_lock;
-
-class static_mutex
-{
-public:
-   typedef scoped_static_mutex_lock scoped_lock;
-   boost::int32_t m_mutex;
-};
-
-#define BOOST_STATIC_MUTEX_INIT { 0, }
-
-class BOOST_REGEX_DECL scoped_static_mutex_lock
-{
-public:
-   scoped_static_mutex_lock(static_mutex& mut, bool lk = true);
-   ~scoped_static_mutex_lock();
-   operator void const*()const;
-   bool locked()const;
-   void lock();
-   void unlock();
-private:
-   static_mutex& m_mutex;
-   bool m_have_lock;
-   scoped_static_mutex_lock(const scoped_static_mutex_lock&);
-   scoped_static_mutex_lock& operator=(const scoped_static_mutex_lock&);
-};
-
-inline scoped_static_mutex_lock::operator void const*()const
-{
-   return locked() ? this : 0;
-}
-
-inline bool scoped_static_mutex_lock::locked()const
-{
-   return m_have_lock;
-}
-
-} // namespace
-
-#else
-//
-// Portable version of a static mutex based on Boost.Thread library:
-// This has to use a single mutex shared by all instances of static_mutex
-// because boost::call_once doesn't alow us to pass instance information
-// down to the initialisation proceedure.  In fact the initialisation routine
-// may need to be called more than once - but only once per instance.
-//
-// Since this preprocessor path is almost never taken, we hide these header
-// dependencies so that build tools don't find them.
-//
-#define B1 <boost/thread/once.hpp>
-#define B2 <boost/thread/recursive_mutex.hpp>
-#include B1
-#include B2
-#undef B1
-#undef B2
-
-namespace boost{
-
-class BOOST_REGEX_DECL scoped_static_mutex_lock;
-extern "C" BOOST_REGEX_DECL void free_static_mutex();
-
-class BOOST_REGEX_DECL static_mutex
-{
-public:
-   typedef scoped_static_mutex_lock scoped_lock;
-   static void init();
-   static boost::recursive_mutex* m_pmutex;
-   static boost::once_flag m_once;
-};
-
-#define BOOST_STATIC_MUTEX_INIT {  }
-
-class BOOST_REGEX_DECL scoped_static_mutex_lock
-{
-public:
-   scoped_static_mutex_lock(static_mutex& mut, bool lk = true);
-   ~scoped_static_mutex_lock();
-   operator void const*()const;
-   bool locked()const;
-   void lock();
-   void unlock();
-private:
-   boost::recursive_mutex::scoped_lock* m_plock;
-   bool m_have_lock;
-};
-
-inline scoped_static_mutex_lock::operator void const*()const
-{
-   return locked() ? this : 0;
-}
-
-inline bool scoped_static_mutex_lock::locked()const
-{
-   return m_have_lock;
-}
-
-} // namespace
-
-#endif
-
-#endif
diff --git a/3rdParty/Boost/boost/regex/pending/unicode_iterator.hpp b/3rdParty/Boost/boost/regex/pending/unicode_iterator.hpp
deleted file mode 100644
index 657ca0a..0000000
--- a/3rdParty/Boost/boost/regex/pending/unicode_iterator.hpp
+++ /dev/null
@@ -1,692 +0,0 @@
-/*
- *
- * 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>
-#include <ios>
-#endif
-#include <limits.h> // CHAR_BIT
-
-namespace boost{
-
-namespace detail{
-
-static const ::boost::uint16_t high_surrogate_base = 0xD7C0u;
-static const ::boost::uint16_t low_surrogate_base = 0xDC00u;
-static const ::boost::uint32_t ten_bit_mask = 0x3FFu;
-
-inline bool is_high_surrogate(::boost::uint16_t v)
-{
-   return (v & 0xFC00u) == 0xd800u;
-}
-inline bool is_low_surrogate(::boost::uint16_t v)
-{
-   return (v & 0xFC00u) == 0xdc00u;
-}
-template <class T>
-inline bool is_surrogate(T v)
-{
-   return (v & 0xF800u) == 0xd800;
-}
-
-inline unsigned utf8_byte_count(boost::uint8_t c)
-{
-   // if the most significant bit with a zero in it is in position
-   // 8-N then there are N bytes in this UTF-8 sequence:
-   boost::uint8_t mask = 0x80u;
-   unsigned result = 0;
-   while(c & mask)
-   {
-      ++result;
-      mask >>= 1;
-   }
-   return (result == 0) ? 1 : ((result > 4) ? 4 : result);
-}
-
-inline unsigned utf8_trailing_byte_count(boost::uint8_t c)
-{
-   return utf8_byte_count(c) - 1;
-}
-
-inline void invalid_utf32_code_point(::boost::uint32_t val)
-{
-#ifndef BOOST_NO_STD_LOCALE
-   std::stringstream ss;
-   ss << "Invalid UTF-32 code point U+" << std::showbase << std::hex << val << " encountered while trying to encode UTF-16 sequence";
-   std::out_of_range e(ss.str());
-#else
-   std::out_of_range e("Invalid UTF-32 code point encountered while trying to encode UTF-16 sequence");
-#endif
-   boost::throw_exception(e);
-}
-
-
-} // namespace detail
-
-template <class BaseIterator, class U16Type = ::boost::uint16_t>
-class u32_to_u16_iterator
-   : public boost::iterator_facade<u32_to_u16_iterator<BaseIterator, U16Type>, U16Type, std::bidirectional_iterator_tag, const U16Type>
-{
-   typedef boost::iterator_facade<u32_to_u16_iterator<BaseIterator, U16Type>, U16Type, std::bidirectional_iterator_tag, const U16Type> base_type;
-
-#if !defined(BOOST_NO_STD_ITERATOR_TRAITS) && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
-   typedef typename std::iterator_traits<BaseIterator>::value_type base_value_type;
-
-   BOOST_STATIC_ASSERT(sizeof(base_value_type)*CHAR_BIT == 32);
-   BOOST_STATIC_ASSERT(sizeof(U16Type)*CHAR_BIT == 16);
-#endif
-
-public:
-   typename base_type::reference
-      dereference()const
-   {
-      if(m_current == 2)
-         extract_current();
-      return m_values[m_current];
-   }
-   bool equal(const u32_to_u16_iterator& that)const
-   {
-      if(m_position == that.m_position)
-      {
-         // Both m_currents must be equal, or both even
-         // this is the same as saying their sum must be even:
-         return (m_current + that.m_current) & 1u ? false : true;
-      }
-      return false;
-   }
-   void increment()
-   {
-      // if we have a pending read then read now, so that we know whether
-      // to skip a position, or move to a low-surrogate:
-      if(m_current == 2)
-      {
-         // pending read:
-         extract_current();
-      }
-      // move to the next surrogate position:
-      ++m_current;
-      // if we've reached the end skip a position:
-      if(m_values[m_current] == 0)
-      {
-         m_current = 2;
-         ++m_position;
-      }
-   }
-   void decrement()
-   {
-      if(m_current != 1)
-      {
-         // decrementing an iterator always leads to a valid position:
-         --m_position;
-         extract_current();
-         m_current = m_values[1] ? 1 : 0;
-      }
-      else
-      {
-         m_current = 0;
-      }
-   }
-   BaseIterator base()const
-   {
-      return m_position;
-   }
-   // construct:
-   u32_to_u16_iterator() : m_position(), m_current(0)
-   {
-      m_values[0] = 0;
-      m_values[1] = 0;
-      m_values[2] = 0;
-   }
-   u32_to_u16_iterator(BaseIterator b) : m_position(b), m_current(2)
-   {
-      m_values[0] = 0;
-      m_values[1] = 0;
-      m_values[2] = 0;
-   }
-private:
-
-   void extract_current()const
-   {
-      // begin by checking for a code point out of range:
-      ::boost::uint32_t v = *m_position;
-      if(v >= 0x10000u)
-      {
-         if(v > 0x10FFFFu)
-            detail::invalid_utf32_code_point(*m_position);
-         // split into two surrogates:
-         m_values[0] = static_cast<U16Type>(v >> 10) + detail::high_surrogate_base;
-         m_values[1] = static_cast<U16Type>(v & detail::ten_bit_mask) + detail::low_surrogate_base;
-         m_current = 0;
-         BOOST_ASSERT(detail::is_high_surrogate(m_values[0]));
-         BOOST_ASSERT(detail::is_low_surrogate(m_values[1]));
-      }
-      else
-      {
-         // 16-bit code point:
-         m_values[0] = static_cast<U16Type>(*m_position);
-         m_values[1] = 0;
-         m_current = 0;
-         // value must not be a surrogate:
-         if(detail::is_surrogate(m_values[0]))
-            detail::invalid_utf32_code_point(*m_position);
-      }
-   }
-   BaseIterator m_position;
-   mutable U16Type m_values[3];
-   mutable unsigned m_current;
-};
-
-template <class BaseIterator, class U32Type = ::boost::uint32_t>
-class u16_to_u32_iterator
-   : public boost::iterator_facade<u16_to_u32_iterator<BaseIterator, U32Type>, U32Type, std::bidirectional_iterator_tag, const U32Type>
-{
-   typedef boost::iterator_facade<u16_to_u32_iterator<BaseIterator, U32Type>, U32Type, std::bidirectional_iterator_tag, const U32Type> base_type;
-   // special values for pending iterator reads:
-   BOOST_STATIC_CONSTANT(U32Type, pending_read = 0xffffffffu);
-
-#if !defined(BOOST_NO_STD_ITERATOR_TRAITS) && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
-   typedef typename std::iterator_traits<BaseIterator>::value_type base_value_type;
-
-   BOOST_STATIC_ASSERT(sizeof(base_value_type)*CHAR_BIT == 16);
-   BOOST_STATIC_ASSERT(sizeof(U32Type)*CHAR_BIT == 32);
-#endif
-
-public:
-   typename base_type::reference
-      dereference()const
-   {
-      if(m_value == pending_read)
-         extract_current();
-      return m_value;
-   }
-   bool equal(const u16_to_u32_iterator& that)const
-   {
-      return m_position == that.m_position;
-   }
-   void increment()
-   {
-      // skip high surrogate first if there is one:
-      if(detail::is_high_surrogate(*m_position)) ++m_position;
-      ++m_position;
-      m_value = pending_read;
-   }
-   void decrement()
-   {
-      --m_position;
-      // if we have a low surrogate then go back one more:
-      if(detail::is_low_surrogate(*m_position)) 
-         --m_position;
-      m_value = pending_read;
-   }
-   BaseIterator base()const
-   {
-      return m_position;
-   }
-   // construct:
-   u16_to_u32_iterator() : m_position()
-   {
-      m_value = pending_read;
-   }
-   u16_to_u32_iterator(BaseIterator b) : m_position(b)
-   {
-      m_value = pending_read;
-   }
-private:
-   static void invalid_code_point(::boost::uint16_t val)
-   {
-#ifndef BOOST_NO_STD_LOCALE
-      std::stringstream ss;
-      ss << "Misplaced UTF-16 surrogate U+" << std::showbase << std::hex << val << " encountered while trying to encode UTF-32 sequence";
-      std::out_of_range e(ss.str());
-#else
-      std::out_of_range e("Misplaced UTF-16 surrogate encountered while trying to encode UTF-32 sequence");
-#endif
-      boost::throw_exception(e);
-   }
-   void extract_current()const
-   {
-      m_value = static_cast<U32Type>(static_cast< ::boost::uint16_t>(*m_position));
-      // if the last value is a high surrogate then adjust m_position and m_value as needed:
-      if(detail::is_high_surrogate(*m_position))
-      {
-         // precondition; next value must have be a low-surrogate:
-         BaseIterator next(m_position);
-         ::boost::uint16_t t = *++next;
-         if((t & 0xFC00u) != 0xDC00u)
-            invalid_code_point(t);
-         m_value = (m_value - detail::high_surrogate_base) << 10;
-         m_value |= (static_cast<U32Type>(static_cast< ::boost::uint16_t>(t)) & detail::ten_bit_mask);
-      }
-      // postcondition; result must not be a surrogate:
-      if(detail::is_surrogate(m_value))
-         invalid_code_point(static_cast< ::boost::uint16_t>(m_value));
-   }
-   BaseIterator m_position;
-   mutable U32Type m_value;
-};
-
-template <class BaseIterator, class U8Type = ::boost::uint8_t>
-class u32_to_u8_iterator
-   : public boost::iterator_facade<u32_to_u8_iterator<BaseIterator, U8Type>, U8Type, std::bidirectional_iterator_tag, const U8Type>
-{
-   typedef boost::iterator_facade<u32_to_u8_iterator<BaseIterator, U8Type>, U8Type, std::bidirectional_iterator_tag, const U8Type> base_type;
-   
-#if !defined(BOOST_NO_STD_ITERATOR_TRAITS) && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
-   typedef typename std::iterator_traits<BaseIterator>::value_type base_value_type;
-
-   BOOST_STATIC_ASSERT(sizeof(base_value_type)*CHAR_BIT == 32);
-   BOOST_STATIC_ASSERT(sizeof(U8Type)*CHAR_BIT == 8);
-#endif
-
-public:
-   typename base_type::reference
-      dereference()const
-   {
-      if(m_current == 4)
-         extract_current();
-      return m_values[m_current];
-   }
-   bool equal(const u32_to_u8_iterator& that)const
-   {
-      if(m_position == that.m_position)
-      {
-         // either the m_current's must be equal, or one must be 0 and 
-         // the other 4: which means neither must have bits 1 or 2 set:
-         return (m_current == that.m_current)
-            || (((m_current | that.m_current) & 3) == 0);
-      }
-      return false;
-   }
-   void increment()
-   {
-      // if we have a pending read then read now, so that we know whether
-      // to skip a position, or move to a low-surrogate:
-      if(m_current == 4)
-      {
-         // pending read:
-         extract_current();
-      }
-      // move to the next surrogate position:
-      ++m_current;
-      // if we've reached the end skip a position:
-      if(m_values[m_current] == 0)
-      {
-         m_current = 4;
-         ++m_position;
-      }
-   }
-   void decrement()
-   {
-      if((m_current & 3) == 0)
-      {
-         --m_position;
-         extract_current();
-         m_current = 3;
-         while(m_current && (m_values[m_current] == 0))
-            --m_current;
-      }
-      else
-         --m_current;
-   }
-   BaseIterator base()const
-   {
-      return m_position;
-   }
-   // construct:
-   u32_to_u8_iterator() : m_position(), m_current(0)
-   {
-      m_values[0] = 0;
-      m_values[1] = 0;
-      m_values[2] = 0;
-      m_values[3] = 0;
-      m_values[4] = 0;
-   }
-   u32_to_u8_iterator(BaseIterator b) : m_position(b), m_current(4)
-   {
-      m_values[0] = 0;
-      m_values[1] = 0;
-      m_values[2] = 0;
-      m_values[3] = 0;
-      m_values[4] = 0;
-   }
-private:
-
-   void extract_current()const
-   {
-      boost::uint32_t c = *m_position;
-      if(c > 0x10FFFFu)
-         detail::invalid_utf32_code_point(c);
-      if(c < 0x80u)
-      {
-         m_values[0] = static_cast<unsigned char>(c);
-         m_values[1] = static_cast<unsigned char>(0u);
-         m_values[2] = static_cast<unsigned char>(0u);
-         m_values[3] = static_cast<unsigned char>(0u);
-      }
-      else if(c < 0x800u)
-      {
-         m_values[0] = static_cast<unsigned char>(0xC0u + (c >> 6));
-         m_values[1] = static_cast<unsigned char>(0x80u + (c & 0x3Fu));
-         m_values[2] = static_cast<unsigned char>(0u);
-         m_values[3] = static_cast<unsigned char>(0u);
-      }
-      else if(c < 0x10000u)
-      {
-         m_values[0] = static_cast<unsigned char>(0xE0u + (c >> 12));
-         m_values[1] = static_cast<unsigned char>(0x80u + ((c >> 6) & 0x3Fu));
-         m_values[2] = static_cast<unsigned char>(0x80u + (c & 0x3Fu));
-         m_values[3] = static_cast<unsigned char>(0u);
-      }
-      else
-      {
-         m_values[0] = static_cast<unsigned char>(0xF0u + (c >> 18));
-         m_values[1] = static_cast<unsigned char>(0x80u + ((c >> 12) & 0x3Fu));
-         m_values[2] = static_cast<unsigned char>(0x80u + ((c >> 6) & 0x3Fu));
-         m_values[3] = static_cast<unsigned char>(0x80u + (c & 0x3Fu));
-      }
-      m_current= 0;
-   }
-   BaseIterator m_position;
-   mutable U8Type m_values[5];
-   mutable unsigned m_current;
-};
-
-template <class BaseIterator, class U32Type = ::boost::uint32_t>
-class u8_to_u32_iterator
-   : public boost::iterator_facade<u8_to_u32_iterator<BaseIterator, U32Type>, U32Type, std::bidirectional_iterator_tag, const U32Type>
-{
-   typedef boost::iterator_facade<u8_to_u32_iterator<BaseIterator, U32Type>, U32Type, std::bidirectional_iterator_tag, const U32Type> base_type;
-   // special values for pending iterator reads:
-   BOOST_STATIC_CONSTANT(U32Type, pending_read = 0xffffffffu);
-
-#if !defined(BOOST_NO_STD_ITERATOR_TRAITS) && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
-   typedef typename std::iterator_traits<BaseIterator>::value_type base_value_type;
-
-   BOOST_STATIC_ASSERT(sizeof(base_value_type)*CHAR_BIT == 8);
-   BOOST_STATIC_ASSERT(sizeof(U32Type)*CHAR_BIT == 32);
-#endif
-
-public:
-   typename base_type::reference
-      dereference()const
-   {
-      if(m_value == pending_read)
-         extract_current();
-      return m_value;
-   }
-   bool equal(const u8_to_u32_iterator& that)const
-   {
-      return m_position == that.m_position;
-   }
-   void increment()
-   {
-      // skip high surrogate first if there is one:
-      unsigned c = detail::utf8_byte_count(*m_position);
-      std::advance(m_position, c);
-      m_value = pending_read;
-   }
-   void decrement()
-   {
-      // Keep backtracking until we don't have a trailing character:
-      unsigned count = 0;
-      while((*--m_position & 0xC0u) == 0x80u) ++count;
-      // now check that the sequence was valid:
-      if(count != detail::utf8_trailing_byte_count(*m_position))
-         invalid_sequnce();
-      m_value = pending_read;
-   }
-   BaseIterator base()const
-   {
-      return m_position;
-   }
-   // construct:
-   u8_to_u32_iterator() : m_position()
-   {
-      m_value = pending_read;
-   }
-   u8_to_u32_iterator(BaseIterator b) : m_position(b)
-   {
-      m_value = pending_read;
-   }
-private:
-   static void invalid_sequnce()
-   {
-      std::out_of_range e("Invalid UTF-8 sequence encountered while trying to encode UTF-32 character");
-      boost::throw_exception(e);
-   }
-   void extract_current()const
-   {
-      m_value = static_cast<U32Type>(static_cast< ::boost::uint8_t>(*m_position));
-      // we must not have a continuation character:
-      if((m_value & 0xC0u) == 0x80u)
-         invalid_sequnce();
-      // see how many extra byts we have:
-      unsigned extra = detail::utf8_trailing_byte_count(*m_position);
-      // extract the extra bits, 6 from each extra byte:
-      BaseIterator next(m_position);
-      for(unsigned c = 0; c < extra; ++c)
-      {
-         ++next;
-         m_value <<= 6;
-         m_value += static_cast<boost::uint8_t>(*next) & 0x3Fu;
-      }
-      // we now need to remove a few of the leftmost bits, but how many depends
-      // upon how many extra bytes we've extracted:
-      static const boost::uint32_t masks[4] = 
-      {
-         0x7Fu,
-         0x7FFu,
-         0xFFFFu,
-         0x1FFFFFu,
-      };
-      m_value &= masks[extra];
-      // check the result:
-      if(m_value > static_cast<U32Type>(0x10FFFFu))
-         invalid_sequnce();
-   }
-   BaseIterator m_position;
-   mutable U32Type m_value;
-};
-
-template <class BaseIterator>
-class utf16_output_iterator
-{
-public:
-   typedef void                                   difference_type;
-   typedef void                                   value_type;
-   typedef boost::uint32_t*                       pointer;
-   typedef boost::uint32_t&                       reference;
-   typedef std::output_iterator_tag               iterator_category;
-
-   utf16_output_iterator(const BaseIterator& b)
-      : m_position(b){}
-   utf16_output_iterator(const utf16_output_iterator& that)
-      : m_position(that.m_position){}
-   utf16_output_iterator& operator=(const utf16_output_iterator& that)
-   {
-      m_position = that.m_position;
-      return *this;
-   }
-   const utf16_output_iterator& operator*()const
-   {
-      return *this;
-   }
-   void operator=(boost::uint32_t val)const
-   {
-      push(val);
-   }
-   utf16_output_iterator& operator++()
-   {
-      return *this;
-   }
-   utf16_output_iterator& operator++(int)
-   {
-      return *this;
-   }
-   BaseIterator base()const
-   {
-      return m_position;
-   }
-private:
-   void push(boost::uint32_t v)const
-   {
-      if(v >= 0x10000u)
-      {
-         // begin by checking for a code point out of range:
-         if(v > 0x10FFFFu)
-            detail::invalid_utf32_code_point(v);
-         // split into two surrogates:
-         *m_position++ = static_cast<boost::uint16_t>(v >> 10) + detail::high_surrogate_base;
-         *m_position++ = static_cast<boost::uint16_t>(v & detail::ten_bit_mask) + detail::low_surrogate_base;
-      }
-      else
-      {
-         // 16-bit code point:
-         // value must not be a surrogate:
-         if(detail::is_surrogate(v))
-            detail::invalid_utf32_code_point(v);
-         *m_position++ = static_cast<boost::uint16_t>(v);
-      }
-   }
-   mutable BaseIterator m_position;
-};
-
-template <class BaseIterator>
-class utf8_output_iterator
-{
-public:
-   typedef void                                   difference_type;
-   typedef void                                   value_type;
-   typedef boost::uint32_t*                       pointer;
-   typedef boost::uint32_t&                       reference;
-   typedef std::output_iterator_tag               iterator_category;
-
-   utf8_output_iterator(const BaseIterator& b)
-      : m_position(b){}
-   utf8_output_iterator(const utf8_output_iterator& that)
-      : m_position(that.m_position){}
-   utf8_output_iterator& operator=(const utf8_output_iterator& that)
-   {
-      m_position = that.m_position;
-      return *this;
-   }
-   const utf8_output_iterator& operator*()const
-   {
-      return *this;
-   }
-   void operator=(boost::uint32_t val)const
-   {
-      push(val);
-   }
-   utf8_output_iterator& operator++()
-   {
-      return *this;
-   }
-   utf8_output_iterator& operator++(int)
-   {
-      return *this;
-   }
-   BaseIterator base()const
-   {
-      return m_position;
-   }
-private:
-   void push(boost::uint32_t c)const
-   {
-      if(c > 0x10FFFFu)
-         detail::invalid_utf32_code_point(c);
-      if(c < 0x80u)
-      {
-         *m_position++ = static_cast<unsigned char>(c);
-      }
-      else if(c < 0x800u)
-      {
-         *m_position++ = static_cast<unsigned char>(0xC0u + (c >> 6));
-         *m_position++ = static_cast<unsigned char>(0x80u + (c & 0x3Fu));
-      }
-      else if(c < 0x10000u)
-      {
-         *m_position++ = static_cast<unsigned char>(0xE0u + (c >> 12));
-         *m_position++ = static_cast<unsigned char>(0x80u + ((c >> 6) & 0x3Fu));
-         *m_position++ = static_cast<unsigned char>(0x80u + (c & 0x3Fu));
-      }
-      else
-      {
-         *m_position++ = static_cast<unsigned char>(0xF0u + (c >> 18));
-         *m_position++ = static_cast<unsigned char>(0x80u + ((c >> 12) & 0x3Fu));
-         *m_position++ = static_cast<unsigned char>(0x80u + ((c >> 6) & 0x3Fu));
-         *m_position++ = static_cast<unsigned char>(0x80u + (c & 0x3Fu));
-      }
-   }
-   mutable BaseIterator m_position;
-};
-
-} // namespace boost
-
-#endif // BOOST_REGEX_UNICODE_ITERATOR_HPP
-