// std::messages implementation details, GNU version -*- C++ -*-

// Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.

// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.

//
// ISO C++ 14882: 22.2.7.1.2  messages functions
//

// Written by Benjamin Kosnik <bkoz@redhat.com>

  // Non-virtual member functions.
  template<typename _CharT>
     messages<_CharT>::messages(size_t __refs)
     : facet(__refs), _M_c_locale_messages(_S_get_c_locale()), 
       _M_name_messages(_S_get_c_name())
     { }

  template<typename _CharT>
     messages<_CharT>::messages(__c_locale __cloc, const char* __s, 
				size_t __refs) 
     : facet(__refs), _M_c_locale_messages(NULL), _M_name_messages(NULL)
     {
       const size_t __len = std::strlen(__s) + 1;
       char* __tmp = new char[__len];
       std::memcpy(__tmp, __s, __len);
       _M_name_messages = __tmp;

       // Last to avoid leaking memory if new throws.
       _M_c_locale_messages = _S_clone_c_locale(__cloc);
     }

  template<typename _CharT>
    typename messages<_CharT>::catalog 
    messages<_CharT>::open(const basic_string<char>& __s, const locale& __loc, 
			   const char* __dir) const
    { 
      bindtextdomain(__s.c_str(), __dir);
      return this->do_open(__s, __loc); 
    }

  // Virtual member functions.
  template<typename _CharT>
    messages<_CharT>::~messages()
    { 
      if (_M_name_messages != _S_get_c_name())
	delete [] _M_name_messages;
      _S_destroy_c_locale(_M_c_locale_messages); 
    }

  template<typename _CharT>
    typename messages<_CharT>::catalog 
    messages<_CharT>::do_open(const basic_string<char>& __s, 
			      const locale&) const
    { 
      // No error checking is done, assume the catalog exists and can
      // be used.
      textdomain(__s.c_str());
      return 0;
    }

  template<typename _CharT>
    void    
    messages<_CharT>::do_close(catalog) const 
    { }

   // messages_byname
   template<typename _CharT>
     messages_byname<_CharT>::messages_byname(const char* __s, size_t __refs)
     : messages<_CharT>(__refs) 
     { 
       if (this->_M_name_messages != locale::facet::_S_get_c_name())
	 delete [] this->_M_name_messages;
       char* __tmp = new char[std::strlen(__s) + 1];
       std::strcpy(__tmp, __s);
       this->_M_name_messages = __tmp;

       if (std::strcmp(__s, "C") != 0 && std::strcmp(__s, "POSIX") != 0)
	 {
	   this->_S_destroy_c_locale(this->_M_c_locale_messages);
	   this->_S_create_c_locale(this->_M_c_locale_messages, __s); 
	 }
     }
