/*

 *

 * Copyright (c) 2003

 * 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         regex_traits.hpp

  *   VERSION      see <boost/version.hpp>

  *   DESCRIPTION: Declares regular expression traits classes.

  */

#ifndef BOOST_REGEX_TRAITS_HPP_INCLUDED

#define BOOST_REGEX_TRAITS_HPP_INCLUDED

#ifndef BOOST_REGEX_CONFIG_HPP

#include <boost/regex/config.hpp>

#endif

#ifndef BOOST_REGEX_WORKAROUND_HPP

#include <boost/regex/v4/regex_workaround.hpp>

#endif

#ifndef BOOST_REGEX_SYNTAX_TYPE_HPP

#include <boost/regex/v4/syntax_type.hpp>

#endif

#ifndef BOOST_REGEX_ERROR_TYPE_HPP

#include <boost/regex/v4/error_type.hpp>

#endif

#ifndef BOOST_REGEX_TRAITS_DEFAULTS_HPP_INCLUDED

#include <boost/regex/v4/regex_traits_defaults.hpp>

#endif

#ifndef BOOST_NO_STD_LOCALE

#  ifndef BOOST_CPP_REGEX_TRAITS_HPP_INCLUDED

#     include <boost/regex/v4/cpp_regex_traits.hpp>

#  endif

#endif

#if !BOOST_WORKAROUND(__BORLANDC__, < 0x560)

#  ifndef BOOST_C_REGEX_TRAITS_HPP_INCLUDED

#     include <boost/regex/v4/c_regex_traits.hpp>

#  endif

#endif

#if defined(_WIN32) && !defined(BOOST_REGEX_NO_W32)

#  ifndef BOOST_W32_REGEX_TRAITS_HPP_INCLUDED

#     include <boost/regex/v4/w32_regex_traits.hpp>

#  endif

#endif

#ifndef BOOST_REGEX_FWD_HPP_INCLUDED

#include <boost/regex_fwd.hpp>

#endif

#include "boost/mpl/has_xxx.hpp"

#include <boost/static_assert.hpp>

#ifdef BOOST_MSVC

#pragma warning(push)

#pragma warning(disable: 4103)

#endif

#ifdef BOOST_HAS_ABI_HEADERS

#  include BOOST_ABI_PREFIX

#endif

#ifdef BOOST_MSVC

#pragma warning(pop)

#endif

namespace boost{

template <class charT, class implementationT >

struct regex_traits : public implementationT

{

   regex_traits() : implementationT() {}

};

//

// class regex_traits_wrapper.

// this is what our implementation will actually store;

// it provides default implementations of the "optional"

// interfaces that we support, in addition to the

// required "standard" ones:

//

namespace re_detail{

#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !BOOST_WORKAROUND(__HP_aCC, < 60000)

BOOST_MPL_HAS_XXX_TRAIT_DEF(boost_extensions_tag)

#else

template<class T>

struct has_boost_extensions_tag

{

   BOOST_STATIC_CONSTANT(bool, value = false);

};

#endif

template <class BaseT>

struct default_wrapper : public BaseT

{

   typedef typename BaseT::char_type char_type;

   std::string error_string(::boost::regex_constants::error_type e)const

   {

      return ::boost::re_detail::get_default_error_string(e);

   }

   ::boost::regex_constants::syntax_type syntax_type(char_type c)const

   {

      return ((c & 0x7f) == c) ? get_default_syntax_type(static_cast<char>(c)) : ::boost::regex_constants::syntax_char;

   }

   ::boost::regex_constants::escape_syntax_type escape_syntax_type(char_type c)const

   {

      return ((c & 0x7f) == c) ? get_default_escape_syntax_type(static_cast<char>(c)) : ::boost::regex_constants::escape_type_identity;

   }

   int toi(const char_type*& p1, const char_type* p2, int radix)const

   {

      return ::boost::re_detail::global_toi(p1, p2, radix, *this);

   }

   char_type translate(char_type c, bool icase)const

   {

      return (icase ? this->translate_nocase(c) : this->translate(c));

   }

   char_type translate(char_type c)const

   {

      return BaseT::translate(c);

   }

   char_type tolower(char_type c)const

   {

      return ::boost::re_detail::global_lower(c);

   }

   char_type toupper(char_type c)const

   {

      return ::boost::re_detail::global_upper(c);

   }

};

template <class BaseT, bool has_extensions>

struct compute_wrapper_base

{

   typedef BaseT type;

};

#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !BOOST_WORKAROUND(__HP_aCC, < 60000)

template <class BaseT>

struct compute_wrapper_base<BaseT, false>

{

   typedef default_wrapper<BaseT> type;

};

#else

template <>

struct compute_wrapper_base<c_regex_traits<char>, false>

{

   typedef default_wrapper<c_regex_traits<char> > type;

};

#ifndef BOOST_NO_WREGEX

template <>

struct compute_wrapper_base<c_regex_traits<wchar_t>, false>

{

   typedef default_wrapper<c_regex_traits<wchar_t> > type;

};

#endif

#endif

} // namespace re_detail

template <class BaseT>

struct regex_traits_wrapper 

   : public ::boost::re_detail::compute_wrapper_base<

               BaseT, 

               ::boost::re_detail::has_boost_extensions_tag<BaseT>::value

            >::type

{

   regex_traits_wrapper(){}

private:

   regex_traits_wrapper(const regex_traits_wrapper&);

   regex_traits_wrapper& operator=(const regex_traits_wrapper&);

};

} // namespace boost

#ifdef BOOST_MSVC

#pragma warning(push)

#pragma warning(disable: 4103)

#endif

#ifdef BOOST_HAS_ABI_HEADERS

#  include BOOST_ABI_SUFFIX

#endif

#ifdef BOOST_MSVC

#pragma warning(pop)

#endif

#endif // include