Files
harbour-core/harbour/source/rtl/langapi.c
2000-04-14 20:01:22 +00:00

177 lines
4.3 KiB
C

/*
* $Id$
*/
/*
* Harbour Project source code:
* The Language API
*
* Copyright 1999 Victor Szakats <info@szelvesz.hu>
* www - http://www.harbour-project.org
*
* This program 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 of the License, or
* (at your option) any later version, with one exception:
*
* The exception is that if you link the Harbour Runtime Library (HRL)
* and/or the Harbour Virtual Machine (HVM) with other files to produce
* an executable, this does not by itself cause the resulting executable
* to be covered by the GNU General Public License. Your use of that
* executable is in no way restricted on account of linking the HRL
* and/or HVM code into it.
*
* This program 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 program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
* their web site at http://www.gnu.org/).
*
*/
#include "hbapi.h"
#include "hbapilng.h"
/* Always link in the default language */
/* This hack is needed */
#define HB_LANG_REQUEST( id ) HB_LANG_REQUEST_( id )
#define HB_LANG_REQUEST_( id ) extern HB_FUNC( HB_LANG_##id ); \
void hb_lang_ForceLink( void ) \
{ \
HB_FUNCNAME( HB_LANG_##id )(); \
}
HB_LANG_REQUEST( HB_LANG_DEFAULT );
/* NOTE: This is the maximum number of registered languages, later this can be
made dynamic. */
#define HB_LANG_MAX_ 64
static PHB_LANG s_langList[ HB_LANG_MAX_ ];
static PHB_LANG s_lang = NULL;
static int hb_langFindPos( char * pszID )
{
int iPos;
if( pszID != NULL )
{
for( iPos = 0; iPos < HB_LANG_MAX_; iPos++ )
{
if( s_langList[ iPos ] != NULL && strcmp( ( char * ) s_langList[ iPos ]->pItemList[ 0 ], pszID ) == 0 )
return iPos;
}
}
return -1;
}
BOOL hb_langRegister( PHB_LANG lang )
{
HB_TRACE(HB_TR_DEBUG, ("hb_langRegister(%p)", lang));
if( lang )
{
int iPos = hb_langFindPos( ( char * ) lang->pItemList[ HB_LANG_ITEM_BASE_ID + 0 ] );
if( iPos == -1 )
{
for( iPos = 0; iPos < HB_LANG_MAX_; iPos++ )
{
if( s_langList[ iPos ] == NULL )
{
s_langList[ iPos ] = lang;
return TRUE;
}
}
}
else
{
s_langList[ iPos ] = lang;
return TRUE;
}
}
return FALSE;
}
BOOL hb_langDeRegister( char * pszID )
{
int iPos;
HB_TRACE(HB_TR_DEBUG, ("hb_langDeRegister(%s)", pszID));
iPos = hb_langFindPos( pszID );
if( iPos != -1 )
{
s_langList[ iPos ] = NULL;
return TRUE;
}
else
return FALSE;
}
PHB_LANG hb_langFind( char * pszID )
{
int iPos;
HB_TRACE(HB_TR_DEBUG, ("hb_langFind(%s)", pszID));
iPos = hb_langFindPos( pszID );
return iPos != -1 ? s_langList[ iPos ] : NULL;
}
PHB_LANG hb_langSelect( PHB_LANG lang )
{
PHB_LANG langOld = s_lang;
HB_TRACE(HB_TR_DEBUG, ("hb_langSelect(%p)", lang));
if( lang )
s_lang = lang;
return langOld;
}
void * hb_langDGetItem( int iIndex )
{
HB_TRACE(HB_TR_DEBUG, ("hb_langDGetItem(%i)", iIndex));
if( s_lang && iIndex >= 0 && iIndex < HB_LANG_ITEM_MAX_ )
return s_lang->pItemList[ iIndex ];
else
return NULL;
}
HB_FUNC( HB_LANGSELECT )
{
hb_retc( ( char * ) hb_langDGetItem( HB_LANG_ITEM_BASE_ID + 0 ) );
if( ISCHAR( 1 ) )
hb_langSelect( hb_langFind( hb_parc( 1 ) ) );
}
/* Compatibility interface */
char * hb_langDGetErrorDesc ( ULONG ulIndex )
{
HB_TRACE(HB_TR_DEBUG, ("hb_langDGetErrorDesc(%lu)", ulIndex));
return ( char * ) hb_langDGetItem( HB_LANG_ITEM_BASE_ERRDESC + ulIndex );
}
char * hb_langDGetErrorIntr ( ULONG ulIndex )
{
HB_TRACE(HB_TR_DEBUG, ("hb_langDGetErrorIntr(%lu)", ulIndex));
return ( char * ) hb_langDGetItem( HB_LANG_ITEM_BASE_ERRINTR + ulIndex - 1 );
}