/*

  * © 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