/*

 * © Portions copyright (c) 2006-2007 Nokia Corporation.  All rights reserved.

 * Copyright (c) 1999

 * Silicon Graphics Computer Systems, Inc.

 *

 * Copyright (c) 1999 

 * Boris Fomitchev

 *

 * This material is provided "as is", with absolutely no warranty expressed

 * or implied. Any use is at your own risk.

 *

 * Permission to use or copy this software for any purpose is hereby granted 

 * without fee, provided the above notices are retained on all copies.

 * Permission to modify the code and to distribute modified code is granted,

 * provided the above notices are retained, and a notice that the code was

 * modified is included with the above copyright notice.

 *

 */ 

#ifndef MESSAGE_FACETS_H

# define MESSAGE_FACETS_H

#include <string>

#include <stl/_messages_facets.h>

#include <stl/_ctype.h>

// #include <istream>

#include <typeinfo>

#include <hash_map>

#include "c_locale.h"

_STLP_BEGIN_NAMESPACE

// Forward declaration of an opaque type.

struct _Catalog_locale_map;

_Locale_messages* __acquire_messages(const char* name); 

void __release_messages(_Locale_messages* cat);

// Class _Catalog_locale_map.  The reason for this is that, internally,

// a message string is always a char*.  We need a ctype facet to convert

// a string to and from wchar_t, and the user is permitted to provide such

// a facet when calling open().

struct _Catalog_locale_map

{

  _Catalog_locale_map() : M(0) {}

  ~_Catalog_locale_map() { if (M) delete M; }

  void insert(int key, const locale& L);

  locale lookup(int key) const;

  void erase(int key);

  hash_map<int, locale, hash<int>, equal_to<int> >* M;

private:                        // Invalidate copy constructor and assignment

  _Catalog_locale_map(const _Catalog_locale_map&);

  void operator=(const _Catalog_locale_map&);

};

class _Messages {

public:

  typedef messages_base::catalog catalog;

  _STLP_DECLSPEC _Messages();

  virtual catalog     do_open(const string& __fn, const locale& __loc) const;

  virtual string do_get(catalog __c, int __set, int __msgid,

			const string& __dfault) const;

# ifndef _STLP_NO_WCHAR_T

  virtual wstring do_get(catalog __c, int __set, int __msgid,

                             const wstring& __dfault) const;

# endif

  virtual void        do_close(catalog __c) const;

  virtual _STLP_DECLSPEC ~_Messages();

  bool _M_delete;

};

class _Messages_impl : public _Messages {

public:

  _Messages_impl(bool);

  _Messages_impl(bool, _Locale_messages*);

  catalog     do_open(const string& __fn, const locale& __loc) const;

  string do_get(catalog __c, int __set, int __msgid,

			const string& __dfault) const;

# ifndef _STLP_NO_WCHAR_T

  wstring do_get(catalog __c, int __set, int __msgid,

		 const wstring& __dfault) const;

# endif

  void        do_close(catalog __c) const;

  ~_Messages_impl();

private:

  _Locale_messages* _M_message_obj;

  _Catalog_locale_map* _M_map;

};

_STLP_END_NAMESPACE

#endif