b4317f84bf
* contrib/xhb/xhbat.c
* contrib/hbtip/utils.c
* Moved ATI() function to xhb lib.
ATI() is different from HB_ATI() since it doesn't support
national chars, but it supports negative start/end values in
xhb style.
* contrib/hbtip/thtml.prg
* Changed to use core HB_ATI() instead of xhb specific ATI().
To me it looks that negative positions aren't used by hbtip code,
also respect for national chars is fine, so this replacement is okay.
Please review me and correct it if needed.
* contrib/xhb/xhbfunc.c
* contrib/hbtip/legacy.prg
* Moved HB_EXEC() to xhb lib. Restored the C version.
* contrib/hbtip/Makefile
- contrib/hbtip/legacy.prg
- Deleted. No longer necessary.
* include/hbextern.ch
* source/rtl/Makefile
+ source/rtl/ati.c
+ Added HB_ATI() function. This is the same as HB_AT(), but
case-insensitive. It supports national chars.
122 lines
4.0 KiB
C
122 lines
4.0 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* HB_ATI() function
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*
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* Copyright 1999-2009 Viktor Szakats (harbour.01 syenar.hu)
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* Copyright 1999 Antonio Linares <alinares@fivetech.com>
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* www - http://www.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
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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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static ULONG hb_strAtI( const char * szSub, ULONG ulSubLen, const char * szText, ULONG ulLen )
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{
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HB_TRACE(HB_TR_DEBUG, ("hb_strAt(%s, %lu, %s, %lu)", szSub, ulSubLen, szText, ulLen));
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if( ulSubLen > 0 && ulLen >= ulSubLen )
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{
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ULONG ulPos = 0;
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ULONG ulSubPos = 0;
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while( ulPos < ulLen && ulSubPos < ulSubLen )
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{
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if( hb_charLower( szText[ ulPos ] ) == hb_charLower( szSub[ ulSubPos ] ) )
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{
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ulSubPos++;
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ulPos++;
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}
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else if( ulSubPos )
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{
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/* Go back to the first character after the first match,
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or else tests like "22345" $ "012223456789" will fail. */
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ulPos -= ( ulSubPos - 1 );
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ulSubPos = 0;
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}
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else
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ulPos++;
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}
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return ( ulSubPos < ulSubLen ) ? 0 : ( ulPos - ulSubLen + 1 );
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}
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else
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return 0;
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}
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HB_FUNC( HB_ATI )
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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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ULONG ulTextLength = hb_itemGetCLen( pText );
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ULONG ulStart = HB_ISNUM( 3 ) ? hb_parnl( 3 ) : 1;
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ULONG ulEnd = HB_ISNUM( 4 ) ? ( ULONG ) hb_parnl( 4 ) : ulTextLength;
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ULONG ulPos;
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if( ulStart > ulTextLength || ulEnd < ulStart )
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hb_retnl( 0 );
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else
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{
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if( ulEnd > ulTextLength )
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ulEnd = ulTextLength;
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ulPos = hb_strAtI( hb_itemGetCPtr( pSub ), hb_itemGetCLen( pSub ),
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hb_itemGetCPtr( pText ) + ulStart - 1, ulEnd - ulStart + 1 );
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if( ulPos > 0 )
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ulPos += ( ulStart - 1 );
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hb_retnl( ulPos );
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}
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 1108, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
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}
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