81c9b0506c
* contrib/*
* Deleted 'www.' from harbour-project.org website name.
(www.harbour-project.org -> harbour-project.org)
326 lines
8.4 KiB
C
326 lines
8.4 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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* POSALPHA(), POSLOWER(), POSRANGE() and POSUPPER() CT3 string functions
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*
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* POSUPPER() Copyright 1999-2001 Viktor Szakats (harbour.01 syenar.hu)
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*
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* POSALPHA(), POSLOWER(), POSRANGE()
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* Copyright 2001 IntTec GmbH, Neunlindenstr 32, 79106 Freiburg, Germany
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* Author: Martin Vogel <vogel@inttec.de>
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*
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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
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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 "ct.h"
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/* defines */
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#define DO_POS1_POSALPHA 0
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#define DO_POS1_POSLOWER 1
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#define DO_POS1_POSRANGE 2
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#define DO_POS1_POSUPPER 3
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/* helper function for the posxxx() functions */
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static void do_pos1( int iSwitch )
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{
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if( HB_ISCHAR( 1 ) && /* all functions need string as 1st param */
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( iSwitch != DO_POS1_POSRANGE || /* that's the only condition for all funcs _except_ POSRANGE */
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( iSwitch == DO_POS1_POSRANGE && /* In addition, POSRANGE needs .. */
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HB_ISCHAR( 2 ) && /* .. string as 2nd .. */
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HB_ISCHAR( 3 ) ) ) ) /* .. and 3rd param */
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{
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unsigned char *pcString;
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HB_SIZE sStrLen;
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unsigned char *puc, ucChar1 = ' ', ucChar2 = ' ';
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int iMode;
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HB_SIZE sIgnore;
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int iParamShift = 0;
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if( iSwitch == DO_POS1_POSRANGE )
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{
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if( hb_parclen( 1 ) == 0 )
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{
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hb_retni( 0 );
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return;
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}
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else
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{
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ucChar1 = *( hb_parc( 1 ) );
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}
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if( hb_parclen( 2 ) == 0 )
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{
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hb_retni( 0 );
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return;
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}
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else
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{
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ucChar2 = *( hb_parc( 2 ) );
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}
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iParamShift += 2;
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}
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pcString = ( unsigned char * ) hb_parc( iParamShift + 1 );
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sStrLen = hb_parclen( iParamShift + 1 );
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if( HB_ISLOG( iParamShift + 2 ) )
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iMode = hb_parl( iParamShift + 2 );
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else
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iMode = 0;
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if( HB_ISNUM( iParamShift + 3 ) )
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sIgnore = ( HB_SIZE ) hb_parnl( iParamShift + 3 );
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else
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sIgnore = 0;
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for( puc = pcString + sIgnore; puc < pcString + sStrLen; puc++ )
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{
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int iDoRet = 0;
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switch ( iSwitch )
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{
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case DO_POS1_POSALPHA:
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iDoRet = hb_charIsAlpha( ( HB_UCHAR ) *puc );
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break;
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case DO_POS1_POSLOWER:
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iDoRet = hb_charIsLower( ( HB_UCHAR ) *puc );
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break;
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case DO_POS1_POSRANGE:
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iDoRet = ( ( ucChar1 <= *puc ) && ( ucChar2 >= *puc ) );
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break;
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case DO_POS1_POSUPPER:
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iDoRet = hb_charIsUpper( ( HB_UCHAR ) *puc );
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break;
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}
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if( ( iMode && !iDoRet ) || ( !iMode && iDoRet ) )
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{
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hb_retnl( puc - pcString + 1 );
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return;
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}
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}
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hb_retni( 0 );
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}
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else /* ISCHAR (1) etc. */
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{
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PHB_ITEM pSubst = NULL;
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int iArgErrorMode = ct_getargerrormode();
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HB_ERRCODE iError = 0;
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if( iArgErrorMode != CT_ARGERR_IGNORE )
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{
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switch ( iSwitch )
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{
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case DO_POS1_POSALPHA:
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iError = CT_ERROR_POSALPHA;
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break;
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case DO_POS1_POSLOWER:
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iError = CT_ERROR_POSLOWER;
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break;
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case DO_POS1_POSRANGE:
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iError = CT_ERROR_POSRANGE;
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break;
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case DO_POS1_POSUPPER:
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iError = CT_ERROR_POSUPPER;
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break;
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}
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pSubst = ct_error_subst( ( HB_USHORT ) iArgErrorMode, EG_ARG, iError,
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NULL, HB_ERR_FUNCNAME, 0,
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EF_CANSUBSTITUTE, HB_ERR_ARGS_BASEPARAMS );
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}
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if( pSubst != NULL )
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hb_itemReturnRelease( pSubst );
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else
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hb_retni( 0 );
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}
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}
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/* $DOC$
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* $FUNCNAME$
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* POSALPHA()
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* $CATEGORY$
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* CT3 string functions
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* $ONELINER$
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* Left-most position of a letter in a string
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* $SYNTAX$
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* POSALPHA (<cString>, [<lMode>], [<nIgnore>]) -> nPosition
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* $ARGUMENTS$
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* $RETURNS$
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* $DESCRIPTION$
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* TODO: add documentation
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* $EXAMPLES$
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* $TESTS$
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* $STATUS$
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* Started
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* $COMPLIANCE$
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* POSALPHA() is compatible with CT3's POSALPHA().
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* $PLATFORMS$
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* All
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* $FILES$
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* Source is pos1.c, library is libct.
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* $SEEALSO$
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* POSLOWER(),POSUPPER(),POSRANGE()
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* $END$
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*/
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HB_FUNC( POSALPHA )
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{
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do_pos1( DO_POS1_POSALPHA );
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}
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/* $DOC$
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* $FUNCNAME$
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* POSLOWER()
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* $CATEGORY$
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* CT3 string functions
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* $ONELINER$
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* Left-most position of a lowercase letter in a string
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* $SYNTAX$
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* POSLOWER (<cString>, [<lMode>], [<nIgnore>]) -> nPosition
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* $ARGUMENTS$
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* $RETURNS$
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* $DESCRIPTION$
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* TODO: add documentation
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* $EXAMPLES$
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* $TESTS$
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* $STATUS$
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* Started
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* $COMPLIANCE$
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* POSLOWER() is compatible with CT3's POSLOWER().
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* $PLATFORMS$
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* All
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* $FILES$
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* Source is pos1.c, library is libct.
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* $SEEALSO$
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* POSALPHA(),POSUPPER(),POSRANGE()
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* $END$
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*/
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HB_FUNC( POSLOWER )
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{
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do_pos1( DO_POS1_POSLOWER );
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}
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/* $DOC$
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* $FUNCNAME$
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* POSRANGE()
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* $CATEGORY$
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* CT3 string functions
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* $ONELINER$
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* Left-most position of a character from a set in a string
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* $SYNTAX$
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* POSRANGE (<cChar1>, <cChar2>, <cString>, [<lMode>],
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* [<nIgnore>]) -> nPosition
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* $ARGUMENTS$
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* $RETURNS$
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* $DESCRIPTION$
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* TODO: add documentation
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* $EXAMPLES$
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* $TESTS$
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* $STATUS$
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* Started
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* $COMPLIANCE$
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* POSRANGE() is compatible with CT3's POSRANGE().
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* $PLATFORMS$
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* All
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* $FILES$
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* Source is pos1.c, library is libct.
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* $SEEALSO$
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* POSALPHA(),POSLOWER(),POSUPPER()
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* $END$
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*/
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HB_FUNC( POSRANGE )
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{
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do_pos1( DO_POS1_POSRANGE );
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}
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/* $DOC$
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* $FUNCNAME$
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* POSUPPER()
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* $CATEGORY$
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* CT3 string functions
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* $ONELINER$
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* Left-most position of an uppercase letter in a string
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* $SYNTAX$
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* POSUPPER (<cString>, [<lMode>], [<nIgnore>]) -> nPosition
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* $ARGUMENTS$
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* $RETURNS$
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* $DESCRIPTION$
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* TODO: add documentation
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* $EXAMPLES$
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* $TESTS$
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* $STATUS$
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* Started
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* $COMPLIANCE$
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* POSUPPER() is compatible with CT3's POSUPPER().
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* $PLATFORMS$
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* All
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* $FILES$
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* Source is pos1.c, library is libct.
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* $SEEALSO$
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* POSALPHA(),POSLOWER(),POSRANGE()
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* $END$
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*/
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HB_FUNC( POSUPPER )
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{
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do_pos1( DO_POS1_POSUPPER );
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}
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