75ff90a49d
* include/hbdefs.h
+ added new types HB_WCHAR16 and HB_WCHAR32, existing type HB_WCHAR
is mapped to HB_WCHAR16 (just like before)
* include/hbapicdp.h
* src/harbour.def
* src/rtl/cdpapi.c
+ added new C functions for encoding and decoding UTF-8 string using
which HB_WCHAR32:
int hb_cdpU32CharToUTF8( char * szUTF8, HB_WCHAR32 wc );
HB_BOOL hb_cdpUTF8GetU32( const char * pSrc, HB_SIZE nLen,
HB_SIZE * pnIndex, HB_WCHAR32 * pWC );
HB_BOOL hb_cdpUTF8GetUCS( const char * pSrc, HB_SIZE nLen,
HB_SIZE * pnIndex, HB_WCHAR32 * pWC );
HB_BOOL hb_cdpUTF8GetU16( const char * pSrc, HB_SIZE nLen,
HB_SIZE * pnIndex, HB_WCHAR16 * pWC );
HB_BOOL hb_cdpUTF8Validate( const char * pSrc, HB_SIZE nLen );
They support full UCS and are much more restrictive against errors and
wrong UTF-8 encoding, i.e. now overlong encoding is forbidden.
The wrong characters are translated to 0xFFFD and later if such
character does not exist in final CP to '?' ASCII character.
* declaration of the following UTF-8 C functions have been changed to
operate on HB_WCHAR32 instead of HB_WCHAR:
int hb_cdpUTF8CharSize( HB_WCHAR32 wc );
HB_WCHAR32 hb_cdpUTF8StringPeek( const char * pSrc, HB_SIZE nLen,
HB_SIZE nPos );
* the following C functions have been changed to internally operate on
HB_WCHAR32 instead of HB_WCHAR:
hb_cdpUTF8StringLength()
hb_cdpUTF8StringAt()
hb_cdpUTF8StringSubstr()
* the following C functions have been changed to use new hb_cdpUTF8GetU*()
instead of step by step decoding with hb_cdpUTF8ToU16NextChar()
hb_cdpStrToUTF8Disp()
hb_cdpUTF8AsStrLen()
hb_cdpUTF8ToStr()
hb_cdpStrToU16()
hb_cdpUtf8Char()
* use HB_CDP_ERROR_* macros to mark wrong encoding
* src/rtl/cdpapihb.c
* the following UTF-8 C functions have been changed to operate on
HB_WCHAR32 instead of HB_WCHAR:
hb_utf8Chr()
hb_utf8Asc()
hb_utf8Poke()
hb_utf8Peek()
Other UTF-8 PRG functions have been adopted to HB_WCHAR32 by changes
in corresponding C functions.
* src/codepage/cp_utf8.c
* use new function hb_cdpUTF8GetU16() to decode UTF-8 strings in UTF8EX CP
* src/rtl/arc4.c
+ added new macro HB_NO_SYSCTL which allow to disable sysctl() in Linux
builds for GLIBC < 2.30
560 lines
15 KiB
C
560 lines
15 KiB
C
/*
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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 2009-2012 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
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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 program; see the file LICENSE.txt. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
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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
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* 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
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* 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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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_WCHAR32 wc;
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for( n1 = n2 = 0; n1 < nLen; )
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{
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hb_cdpUTF8GetU32( szUTF8, nLen, &n1, &wc );
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if( --nUTF8Pos == 0 )
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return n2 + 1;
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n2 = n1;
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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_CDPEXISTS )
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{
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const char * id = hb_parc( 1 );
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if( id )
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hb_retl( hb_cdpFind( id ) != NULL );
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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_CDPUNIID )
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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->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_CDPISCHARIDX )
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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_BOOL fResult = HB_FALSE;
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if( cdp )
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{
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fResult = HB_CDP_ISCHARIDX( cdp );
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if( HB_CDP_ISCUSTOM( cdp ) && HB_ISLOG( 2 ) )
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{
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if( hb_parl( 2 ) )
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cdp->type |= HB_CDP_TYPE_CHARIDX;
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else
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cdp->type &= ~HB_CDP_TYPE_CHARIDX;
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}
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}
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hb_retl( fResult );
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}
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HB_FUNC( HB_CDPCHARMAX )
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{
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hb_retnl( ( 1 << ( ( int ) ( hb_cdpIsUTF8( hb_cdpFindExt( hb_parc( 1 ) ) ) ? sizeof( HB_WCHAR ) : sizeof( HB_UCHAR ) ) * 8 ) ) - 1 );
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}
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HB_FUNC( HB_CDPISUTF8 )
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{
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hb_retl( hb_cdpIsUTF8( hb_cdpFindExt( hb_parc( 1 ) ) ) );
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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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/* 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_TRANSLATE( __NATSORTVER, HB_CDPINFO )
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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 )
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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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HB_CDP_ISCUSTOM( cdpIn ) ||
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HB_CDP_ISCUSTOM( cdpOut ) ) )
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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_CHAR_LEN ];
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int iLen;
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iLen = hb_cdpU32CharToUTF8( utf8Char, ( HB_WCHAR32 ) 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 ), nIndex = 0;
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HB_WCHAR32 wc = 0;
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hb_cdpUTF8GetU32( pszString, nLen, &nIndex, &wc );
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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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char * szDest = NULL;
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if( nLen )
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{
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const char * szCP = hb_parc( 2 );
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PHB_CODEPAGE cdp = szCP ? hb_cdpFindExt( szCP ) : hb_vmCDP();
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if( cdp )
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{
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if( hb_cdpIsUTF8( cdp ) )
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{
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hb_itemReturn( hb_param( 1, HB_IT_STRING ) );
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return;
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}
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else
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{
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const char * 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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}
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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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const char * szCP = hb_parc( 2 );
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PHB_CODEPAGE cdp = szCP ? hb_cdpFindExt( szCP ) : hb_vmCDP();
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if( cdp )
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{
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if( hb_cdpIsUTF8( cdp ) )
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{
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hb_itemReturn( hb_param( 1, HB_IT_STRING ) );
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return;
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}
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else
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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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}
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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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/*
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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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*/
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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 ) );
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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_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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if( szString && ( iPCount < 2 || ( HB_ISNUM( 2 ) && ( iPCount < 3 || HB_ISNUM( 3 ) ) ) ) )
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{
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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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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;
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}
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else if( nFrom )
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--nFrom;
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if( nLen > ( HB_SIZE ) nFrom && nCount > 0 )
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szDest = hb_cdpUTF8StringSubstr( szString, nLen,
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nFrom, nCount, &nDest );
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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_UTF8LEFT )
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{
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const char * szString = hb_parc( 1 );
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if( szString && HB_ISNUM( 2 ) )
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{
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HB_ISIZ nLenReq = hb_parns( 2 );
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HB_SIZE nDest = 0;
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char * szDest = NULL;
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if( nLenReq > 0 )
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szDest = hb_cdpUTF8StringSubstr( szString, hb_parclen( 1 ),
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0, nLenReq, &nDest );
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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_UTF8RIGHT )
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{
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const char * szString = hb_parc( 1 );
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if( szString && HB_ISNUM( 2 ) )
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{
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HB_ISIZ nLenReq = hb_parns( 2 ), nFrom;
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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 && nLenReq > 0 )
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{
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nFrom = hb_cdpUTF8StringLength( szString, nLen ) - nLenReq;
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if( nFrom < 0 )
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nFrom = 0;
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szDest = hb_cdpUTF8StringSubstr( szString, nLen,
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nFrom, nLenReq, &nDest );
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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_UTF8PEEK )
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{
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const char * szString = hb_parc( 1 );
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if( szString && HB_ISNUM( 2 ) )
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{
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HB_SIZE nPos = hb_parns( 2 );
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HB_SIZE nLen = hb_parclen( 1 );
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if( nPos > 0 && nPos <= nLen )
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hb_retnint( hb_cdpUTF8StringPeek( szString, nLen, nPos - 1 ) );
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else
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hb_retni( 0 );
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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 );
|
|
}
|
|
|
|
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_itemGetCLen( pText ), nPos;
|
|
|
|
nPos = utf8pos( szString, nLen, hb_parns( 2 ) );
|
|
if( nPos )
|
|
{
|
|
HB_WCHAR32 uc, uc2;
|
|
HB_SIZE nDstLen = 0;
|
|
int n;
|
|
|
|
--nPos;
|
|
uc = ( HB_WCHAR32 ) hb_parni( 3 );
|
|
n = hb_cdpUTF8CharSize( uc );
|
|
|
|
hb_cdpUTF8GetU32( &szString[ nPos ], nLen - nPos, &nDstLen, &uc2 );
|
|
if( n == ( int ) nDstLen )
|
|
{
|
|
char * szText;
|
|
if( hb_itemGetWriteCL( pText, &szText, &nLen ) &&
|
|
nPos + n <= nLen )
|
|
{
|
|
hb_cdpU32CharToUTF8( &szText[ nPos ], uc );
|
|
}
|
|
hb_itemReturn( pText );
|
|
}
|
|
else
|
|
{
|
|
char * szResult = ( char * ) hb_xgrab( nLen - nDstLen + n + 1 );
|
|
|
|
memcpy( szResult, szString, nPos );
|
|
hb_cdpU32CharToUTF8( &szResult[ nPos ], uc );
|
|
memcpy( szResult + nPos + n, szString + nPos + nDstLen, nLen - nPos - nDstLen );
|
|
if( HB_ISBYREF( 1 ) )
|
|
hb_storclen( szResult, nLen - nDstLen + n, 1 );
|
|
hb_retclen_buffer( szResult, nLen - nDstLen + 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 * szText = hb_parc( 1 );
|
|
const char * szIns = hb_parc( 4 );
|
|
|
|
if( szText && szIns && HB_ISNUM( 2 ) && HB_ISNUM( 3 ) )
|
|
{
|
|
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( szText, nLen, nPos );
|
|
if( nPos == 0 )
|
|
nPos = nLen;
|
|
else
|
|
nPos--;
|
|
}
|
|
if( nDel )
|
|
{
|
|
if( nPos < nLen )
|
|
{
|
|
nDel = utf8pos( szText + 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, szText, nPos );
|
|
hb_xmemcpy( szResult + nPos, szIns, nIns );
|
|
hb_xmemcpy( szResult + nPos + nIns, szText + 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 * szText = hb_parc( 1 );
|
|
|
|
if( szText )
|
|
hb_retnint( hb_cdpUTF8StringLength( szText, 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_TRANSLATE( HB_UTF8STRTRAN, STRTRAN )
|