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/*
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* $Id: cdpapihb.c 16579 2011-04-13 09:07:47Z druzus $
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*/
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/*
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* Harbour Project source code:
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* The CodePages API
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*
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* Copyright 2002 Alexander S.Kresin <alex@belacy.belgorod.su>
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* Copyright 2009 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
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* www - http://harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
|
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* Project under the name Harbour. If you copy code from other
|
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* Harbour Project or Free Software Foundation releases into a copy of
|
|
* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
|
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* anyone as to the status of such modified files, you must delete
|
|
* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#include "hbapi.h"
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#include "hbapiitm.h"
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#include "hbapierr.h"
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#include "hbapicdp.h"
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/* Now we are using only 16bit Unicode values so the maximum size
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* of single character encoded in UTF8 is 3 though ISO 10646 Universal
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* Character Set (UCS) occupies even a 31-bit code space and to encode
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* all UCS values we will need 6 bytes. Now in practice no one uses
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* Unicode character over 0xFFFF but it may change in the future so
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* it's safer to use macro for maximum UTF8 character size. [druzus]
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*/
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#define HB_MAX_UTF8 3
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static HB_SIZE utf8pos( const char * szUTF8, HB_SIZE nLen, HB_SIZE nUTF8Pos )
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{
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if( nUTF8Pos > 0 && nUTF8Pos <= nLen )
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{
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HB_SIZE n1, n2;
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HB_WCHAR uc;
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int n = 0;
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for( n1 = n2 = 0; n1 < nLen; ++n1 )
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{
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if( hb_cdpUTF8ToU16NextChar( ( HB_UCHAR ) szUTF8[ n1 ], &n, &uc ) )
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{
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if( n == 0 )
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{
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if( --nUTF8Pos == 0 )
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return n2 + 1;
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n2 = n1 + 1;
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}
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}
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}
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}
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return 0;
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}
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HB_FUNC( HB_CDPSELECT )
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{
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const char * id = hb_parc( 1 );
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hb_retc( hb_cdpID() );
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if( id )
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hb_cdpSelectID( id );
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}
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HB_FUNC( HB_CDPUNIID )
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{
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const char * id = hb_parc( 1 );
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PHB_CODEPAGE cdp = id ? hb_cdpFind( id ) : hb_vmCDP();
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hb_retc( cdp ? cdp->uniTable->uniID : NULL );
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}
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HB_FUNC( HB_CDPINFO )
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{
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const char * id = hb_parc( 1 );
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PHB_CODEPAGE cdp = id ? hb_cdpFindExt( id ) : hb_vmCDP();
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hb_retc( cdp ? cdp->info : NULL );
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}
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HB_FUNC( HB_CDPLIST )
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{
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const char ** list = hb_cdpList();
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HB_ISIZ nPos;
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nPos = 0;
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while( list[ nPos ] )
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++nPos;
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hb_reta( nPos );
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nPos = 0;
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while( list[ nPos ] )
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{
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hb_storvc( list[ nPos ], -1, nPos + 1 );
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++nPos;
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}
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hb_xfree( ( void * ) list );
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}
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HB_FUNC( __NATSORTVER )
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{
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/* NOTE: CA-Cl*pper 5.2e Intl. will return: "NATSORT v1.2i x14 19/Mar/93" */
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/* NOTE: CA-Cl*pper 5.3 Intl. will return: "NATSORT v1.3i x19 06/Mar/95" */
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HB_FUNC_EXEC( HB_CDPINFO );
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}
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/*
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* extended CP PRG functions
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*/
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HB_FUNC( HB_TRANSLATE )
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{
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HB_SIZE nLen = hb_parclen( 1 );
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const char * szIdIn = hb_parc( 2 );
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const char * szIdOut = hb_parc( 3 );
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if( nLen && ( szIdIn || szIdOut ) )
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{
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PHB_CODEPAGE cdpIn = szIdIn ? hb_cdpFindExt( szIdIn ) : hb_vmCDP();
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PHB_CODEPAGE cdpOut = szIdOut ? hb_cdpFindExt( szIdOut ) : hb_vmCDP();
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if( cdpIn && cdpOut && cdpIn != cdpOut &&
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( cdpIn->uniTable != cdpOut->uniTable ||
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cdpIn->fCustom || cdpOut->fCustom ) )
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{
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char * szResult = hb_cdpnDup( hb_parc( 1 ), &nLen, cdpIn, cdpOut );
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hb_retclen_buffer( szResult, nLen );
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}
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else
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hb_itemReturn( hb_param( 1, HB_IT_STRING ) );
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}
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else
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hb_retc_null();
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}
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HB_FUNC( HB_UTF8CHR )
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{
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if( HB_ISNUM( 1 ) )
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{
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char utf8Char[ HB_MAX_UTF8 ];
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int iLen;
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iLen = hb_cdpU16CharToUTF8( utf8Char, ( HB_WCHAR ) hb_parni( 1 ) );
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hb_retclen( utf8Char, iLen );
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
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}
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HB_FUNC( HB_UTF8ASC )
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{
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const char * pszString = hb_parc( 1 );
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if( pszString )
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{
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HB_SIZE nLen = hb_parclen( 1 );
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HB_WCHAR wc = 0;
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int n = 0;
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while( nLen-- )
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{
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if( hb_cdpUTF8ToU16NextChar( ( unsigned char ) *pszString++, &n, &wc ) )
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{
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if( n == 0 )
|
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break;
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}
|
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}
|
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hb_retnint( wc );
|
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
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|
}
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HB_FUNC( HB_STRTOUTF8 )
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{
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HB_SIZE nLen = hb_parclen( 1 ), nDest = 0;
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const char * szString;
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char * szDest = NULL;
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if( nLen )
|
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{
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PHB_CODEPAGE cdp = HB_ISCHAR( 2 ) ? hb_cdpFindExt( hb_parc( 2 ) ) : hb_vmCDP();
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if( cdp )
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{
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szString = hb_parc( 1 );
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nDest = hb_cdpStrAsUTF8Len( cdp, szString, nLen, 0 );
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szDest = ( char * ) hb_xgrab( nDest + 1 );
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hb_cdpStrToUTF8( cdp, szString, nLen, szDest, nDest + 1 );
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}
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}
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if( szDest )
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hb_retclen_buffer( szDest, nDest );
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else
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hb_retc_null();
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}
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HB_FUNC( HB_UTF8TOSTR )
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{
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const char * szString = hb_parc( 1 );
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if( szString )
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{
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HB_SIZE nLen = hb_parclen( 1 ), nDest = 0;
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char * szDest = NULL;
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if( nLen )
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{
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PHB_CODEPAGE cdp = HB_ISCHAR( 2 ) ? hb_cdpFindExt( hb_parc( 2 ) ) : hb_vmCDP();
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if( cdp )
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{
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szString = hb_parc( 1 );
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nDest = hb_cdpUTF8AsStrLen( cdp, szString, nLen, 0 );
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szDest = ( char * ) hb_xgrab( nDest + 1 );
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hb_cdpUTF8ToStr( cdp, szString, nLen, szDest, nDest + 1 );
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}
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}
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if( szDest )
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hb_retclen_buffer( szDest, nDest );
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else
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hb_retc_null();
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
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}
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HB_FUNC( HB_UTF8AT )
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{
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PHB_ITEM pSub = hb_param( 1, HB_IT_STRING );
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PHB_ITEM pText = hb_param( 2, HB_IT_STRING );
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if( pText && pSub )
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{
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HB_SIZE nTextLength = hb_itemGetCLen( pText );
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HB_SIZE nStart = hb_parnsdef( 3, 1 );
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HB_SIZE nEnd = hb_parnsdef( 4, nTextLength ); /* nTextLength can be > UTF8 len. No problem.*/
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if( nEnd < nStart )
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hb_retns( 0 );
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else
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hb_retns( hb_cdpUTF8StringAt( hb_itemGetCPtr( pSub ), hb_itemGetCLen( pSub ),
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hb_itemGetCPtr( pText ), nTextLength, nStart, nEnd, HB_FALSE ) );
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
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|
|
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/*
|
|
* NOTE: In HB_UTF8RAT we are still traversing from
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* left to right, as it would be required anyway to
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* determine the real string length. [bacco]
|
|
*/
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HB_FUNC( HB_UTF8RAT )
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{
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PHB_ITEM pSub = hb_param( 1, HB_IT_STRING );
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PHB_ITEM pText = hb_param( 2, HB_IT_STRING );
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if( pText && pSub )
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|
{
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HB_SIZE nTextLength = hb_itemGetCLen( pText );
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HB_SIZE nStart = hb_parnsdef( 3, 1 );
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HB_SIZE nEnd = hb_parnsdef( 4, nTextLength ); /* nTextLength can be > UTF8 len. No problem.*/
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if( nEnd < nStart )
|
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hb_retns( 0 );
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else
|
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hb_retns( hb_cdpUTF8StringAt( hb_itemGetCPtr( pSub ), hb_itemGetCLen( pSub ),
|
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hb_itemGetCPtr( pText ), nTextLength, nStart, nEnd, HB_TRUE ) );
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
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|
|
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HB_FUNC( HB_UTF8SUBSTR )
|
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{
|
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const char * szString = hb_parc( 1 );
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int iPCount = hb_pcount();
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|
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if( szString && ( iPCount < 2 || ( HB_ISNUM( 2 ) && ( iPCount < 3 || HB_ISNUM( 3 ) ) ) ) )
|
|
{
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char * szDest = NULL;
|
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HB_SIZE nLen = hb_parclen( 1 ), nDest = 0;
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HB_ISIZ nFrom = hb_parns( 2 );
|
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HB_ISIZ nCount = iPCount < 3 ? ( HB_ISIZ ) nLen : hb_parns( 3 );
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|
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if( nFrom < 0 )
|
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{
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nFrom += hb_cdpUTF8StringLength( szString, nLen );
|
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if( nFrom < 0 )
|
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nFrom = 0;
|
|
}
|
|
else if( nFrom )
|
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--nFrom;
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|
|
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if( nLen && nCount > 0 )
|
|
szDest = hb_cdpUTF8StringSubstr( szString, nLen,
|
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nFrom, nCount, &nDest );
|
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if( szDest )
|
|
hb_retclen_buffer( szDest, nDest );
|
|
else
|
|
hb_retc_null();
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
|
|
|
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HB_FUNC( HB_UTF8LEFT )
|
|
{
|
|
const char * szString = hb_parc( 1 );
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|
|
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if( szString && HB_ISNUM( 2 ) )
|
|
{
|
|
HB_ISIZ nLenReq = hb_parns( 2 );
|
|
HB_SIZE nDest = 0;
|
|
char * szDest = NULL;
|
|
|
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if( nLenReq > 0 )
|
|
szDest = hb_cdpUTF8StringSubstr( szString, hb_parclen( 1 ),
|
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0, nLenReq, &nDest );
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|
|
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if( szDest )
|
|
hb_retclen_buffer( szDest, nDest );
|
|
else
|
|
hb_retc_null();
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
|
|
|
|
HB_FUNC( HB_UTF8RIGHT )
|
|
{
|
|
const char * szString = hb_parc( 1 );
|
|
|
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if( szString && HB_ISNUM( 2 ) )
|
|
{
|
|
HB_ISIZ nLenReq = hb_parns( 2 ), nFrom;
|
|
HB_SIZE nLen = hb_parclen( 1 ), nDest = 0;
|
|
char * szDest = NULL;
|
|
|
|
if( nLen && nLenReq > 0 )
|
|
{
|
|
nFrom = hb_cdpUTF8StringLength( szString, nLen ) - nLenReq;
|
|
if( nFrom < 0 )
|
|
nFrom = 0;
|
|
szDest = hb_cdpUTF8StringSubstr( szString, nLen,
|
|
nFrom, nLenReq, &nDest );
|
|
}
|
|
|
|
if( szDest )
|
|
hb_retclen_buffer( szDest, nDest );
|
|
else
|
|
hb_retc_null();
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
|
|
|
|
HB_FUNC( HB_UTF8PEEK )
|
|
{
|
|
const char * szString = hb_parc( 1 );
|
|
|
|
if( szString && HB_ISNUM( 2 ) )
|
|
{
|
|
HB_SIZE nPos = hb_parns( 2 );
|
|
HB_SIZE nLen = hb_parclen( 1 );
|
|
|
|
if( nPos > 0 && nPos <= nLen )
|
|
hb_retnint( hb_cdpUTF8StringPeek( szString, nLen, nPos - 1 ) );
|
|
else
|
|
hb_retni( 0 );
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
|
|
|
|
HB_FUNC( HB_UTF8POKE )
|
|
{
|
|
PHB_ITEM pText = hb_param( 1, HB_IT_STRING );
|
|
|
|
if( pText && HB_ISNUM( 2 ) && HB_ISNUM( 3 ) )
|
|
{
|
|
const char * szString = hb_itemGetCPtr( pText );
|
|
HB_SIZE nLen = hb_parclen( 1 ), nPos;
|
|
|
|
nPos = utf8pos( szString, nLen, hb_parns( 2 ) );
|
|
if( nPos )
|
|
{
|
|
HB_WCHAR uc, uc2;
|
|
int n, n2;
|
|
|
|
--nPos;
|
|
uc = ( HB_WCHAR ) hb_parni( 3 );
|
|
n = hb_cdpUTF8CharSize( uc );
|
|
n2 = 0;
|
|
hb_cdpUTF8ToU16NextChar( szString[nPos], &n2, &uc2 );
|
|
++n2;
|
|
if( n == n2 )
|
|
{
|
|
char * szText;
|
|
if( hb_itemGetWriteCL( pText, &szText, &nLen ) &&
|
|
nPos + n <= nLen )
|
|
{
|
|
hb_cdpU16CharToUTF8( &szText[nPos], uc );
|
|
}
|
|
hb_itemReturn( pText );
|
|
}
|
|
else
|
|
{
|
|
char * szResult = ( char * ) hb_xgrab( nLen - n2 + n + 1 );
|
|
|
|
memcpy( szResult, szString, nPos );
|
|
hb_cdpU16CharToUTF8( &szResult[nPos], uc );
|
|
memcpy( szResult + nPos + n, szString + nPos + n2, nLen - nPos - n2 );
|
|
if( HB_ISBYREF( 1 ) )
|
|
hb_storclen( szResult, nLen - n2 + n, 1 );
|
|
hb_retclen_buffer( szResult, nLen - n2 + n );
|
|
}
|
|
}
|
|
else
|
|
hb_itemReturn( pText );
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
|
|
|
|
HB_FUNC( HB_UTF8STUFF )
|
|
{
|
|
const char * szString = hb_parc( 1 );
|
|
|
|
if( szString && HB_ISNUM( 2 ) && HB_ISNUM( 3 ) && HB_ISCHAR( 4 ) )
|
|
{
|
|
HB_SIZE nLen = hb_parclen( 1 );
|
|
HB_SIZE nPos = hb_parns( 2 );
|
|
HB_SIZE nDel = hb_parns( 3 );
|
|
HB_SIZE nIns = hb_parclen( 4 );
|
|
HB_SIZE nTot;
|
|
|
|
if( nPos )
|
|
{
|
|
nPos = utf8pos( szString, nLen, nPos );
|
|
if( nPos == 0 )
|
|
nPos = nLen;
|
|
else
|
|
nPos--;
|
|
}
|
|
if( nDel )
|
|
{
|
|
if( nPos < nLen )
|
|
{
|
|
nDel = utf8pos( szString + nPos, nLen - nPos, nDel + 1 );
|
|
if( nDel == 0 )
|
|
nDel = nLen - nPos;
|
|
else
|
|
nDel--;
|
|
}
|
|
else
|
|
nDel = 0;
|
|
}
|
|
|
|
if( ( nTot = nLen + nIns - nDel ) > 0 )
|
|
{
|
|
char * szResult = ( char * ) hb_xgrab( nTot + 1 );
|
|
|
|
hb_xmemcpy( szResult, szString, nPos );
|
|
hb_xmemcpy( szResult + nPos, hb_parc( 4 ), nIns );
|
|
hb_xmemcpy( szResult + nPos + nIns, szString + nPos + nDel,
|
|
nLen - ( nPos + nDel ) );
|
|
hb_retclen_buffer( szResult, nTot );
|
|
}
|
|
else
|
|
hb_retc_null();
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
|
|
|
|
HB_FUNC( HB_UTF8LEN )
|
|
{
|
|
const char * szString = hb_parc( 1 );
|
|
|
|
if( szString )
|
|
hb_retnint( hb_cdpUTF8StringLength( szString, hb_parclen( 1 ) ) );
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
|
|
|
|
/* none of numeric parameters in STRTRAN() (4-th and 5-th) refers to
|
|
* character position in string so we do not need to create new
|
|
* HB_UTF8STRTRAN() but we can safely use normal STRTRAN() function
|
|
*/
|
|
HB_FUNC_EXTERN( STRTRAN );
|
|
|
|
HB_FUNC( HB_UTF8STRTRAN )
|
|
{
|
|
HB_FUNC_EXEC( STRTRAN )
|
|
}
|