58faf91453
* *
% remove brandings and homepage [1] from copyright header. Pass 1 - using script.
[1] nobody has access to it anymore AFAIK - and it's also just
a redirect since long
! update url in copyright header
; this should make the diff between 3.4 and 3.2 easier to manage
135 lines
4.5 KiB
C
135 lines
4.5 KiB
C
/*
|
|
* At() function
|
|
*
|
|
* Copyright 2012 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
|
|
* Copyright 1999 Antonio Linares <alinares@fivetech.com>
|
|
*
|
|
* 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, or (at your option)
|
|
* any later version.
|
|
*
|
|
* 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 software; see the file COPYING.txt. If not, write to
|
|
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|
|
* Boston, MA 02111-1307 USA (or visit the web site https://www.gnu.org/).
|
|
*
|
|
* As a special exception, the Harbour Project gives permission for
|
|
* additional uses of the text contained in its release of Harbour.
|
|
*
|
|
* The exception is that, if you link the Harbour libraries 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 Harbour library code into it.
|
|
*
|
|
* This exception does not however invalidate any other reasons why
|
|
* the executable file might be covered by the GNU General Public License.
|
|
*
|
|
* This exception applies only to the code released by the Harbour
|
|
* Project under the name Harbour. If you copy code from other
|
|
* Harbour Project or Free Software Foundation releases into a copy of
|
|
* Harbour, as the General Public License permits, the exception does
|
|
* not apply to the code that you add in this way. To avoid misleading
|
|
* anyone as to the status of such modified files, you must delete
|
|
* this exception notice from them.
|
|
*
|
|
* If you write modifications of your own for Harbour, it is your choice
|
|
* whether to permit this exception to apply to your modifications.
|
|
* If you do not wish that, delete this exception notice.
|
|
*
|
|
*/
|
|
|
|
#include "hbapi.h"
|
|
#include "hbapiitm.h"
|
|
#include "hbapicdp.h"
|
|
#include "hbapierr.h"
|
|
|
|
/* locates a substring in a string */
|
|
|
|
HB_FUNC( HB_AT )
|
|
{
|
|
PHB_ITEM pSub = hb_param( 1, HB_IT_STRING );
|
|
PHB_ITEM pText = hb_param( 2, HB_IT_STRING );
|
|
|
|
if( pText && pSub )
|
|
{
|
|
PHB_CODEPAGE cdp = hb_vmCDP();
|
|
const char * pszText = hb_itemGetCPtr( pText );
|
|
HB_SIZE nTextLength = hb_itemGetCLen( pText );
|
|
HB_SIZE nStart = hb_parns( 3 );
|
|
HB_SIZE nFrom, nTo, nPos = 0;
|
|
|
|
if( nStart <= 1 )
|
|
nStart = nFrom = 0;
|
|
else if( HB_CDP_ISCHARIDX( cdp ) )
|
|
nFrom = hb_cdpTextPos( cdp, pszText, nTextLength, --nStart );
|
|
else
|
|
nFrom = --nStart;
|
|
|
|
if( nFrom < nTextLength )
|
|
{
|
|
pszText += nFrom;
|
|
nTextLength -= nFrom;
|
|
if( HB_ISNUM( 4 ) )
|
|
{
|
|
nTo = hb_parns( 4 );
|
|
if( nTo <= nStart )
|
|
nTo = 0;
|
|
else
|
|
{
|
|
nTo -= nStart;
|
|
if( HB_CDP_ISCHARIDX( cdp ) )
|
|
nTo = hb_cdpTextPos( cdp, pszText, nTextLength, nTo );
|
|
if( nTo > nTextLength )
|
|
nTo = nTextLength;
|
|
}
|
|
}
|
|
else
|
|
nTo = nTextLength;
|
|
|
|
if( nTo > 0 )
|
|
{
|
|
nPos = hb_strAt( hb_itemGetCPtr( pSub ), hb_itemGetCLen( pSub ),
|
|
pszText, nTo );
|
|
if( nPos > 0 )
|
|
{
|
|
if( HB_CDP_ISCHARIDX( cdp ) )
|
|
nPos = hb_cdpTextLen( cdp, pszText, nPos - 1 ) + 1 + nStart;
|
|
else
|
|
nPos += nFrom;
|
|
}
|
|
}
|
|
}
|
|
hb_retns( nPos );
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 1108, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
|
|
|
|
HB_FUNC( AT )
|
|
{
|
|
PHB_ITEM pSub = hb_param( 1, HB_IT_STRING );
|
|
PHB_ITEM pText = hb_param( 2, HB_IT_STRING );
|
|
|
|
if( pText && pSub )
|
|
{
|
|
HB_SIZE nPos = hb_strAt( hb_itemGetCPtr( pSub ), hb_itemGetCLen( pSub ),
|
|
hb_itemGetCPtr( pText ), hb_itemGetCLen( pText ) );
|
|
if( nPos )
|
|
{
|
|
PHB_CODEPAGE cdp = hb_vmCDP();
|
|
if( HB_CDP_ISCHARIDX( cdp ) )
|
|
nPos = hb_cdpTextLen( cdp, hb_itemGetCPtr( pText ), nPos - 1 ) + 1;
|
|
}
|
|
hb_retns( nPos );
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 1108, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
|
|
}
|