348 lines
7.8 KiB
C
348 lines
7.8 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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* RANGEREM() and RANGEREPL() CT3 string functions
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*
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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://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 "ct.h"
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/* $DOC$
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* $FUNCNAME$
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* RANGEREM()
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* $CATEGORY$
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* CT3 string functions
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* $ONELINER$
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* Remove characters within a certain ASCII range from a string
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* $SYNTAX$
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* RANGEREM (<cChar1|nChar1>, <cChar2|nChar2>, <cString>) -> cString
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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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* RANGEREM() is compatible with CT3's RANGEREM().
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* $PLATFORMS$
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* All
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* $FILES$
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* Source is range.c, library is libct.
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* $SEEALSO$
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* RANGEREPL()
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* $END$
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*/
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HB_FUNC (RANGEREM)
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{
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if (((hb_parclen (1) > 0) || ISNUM (1)) &&
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((hb_parclen (2) > 0) || ISNUM (2)) &&
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ISCHAR (3))
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{
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char *pcString = (char *)hb_parc (3);
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size_t sStrLen = (size_t)hb_parclen (3);
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char *pcRet, *pc;
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unsigned char ucChar1, ucChar2;
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size_t sRetIndex;
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int iMode, iBool;
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if (ISNUM (1))
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{
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ucChar1 = hb_parnl (1)%256;
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}
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else
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{
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ucChar1 = *((unsigned char *)hb_parc (1));
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}
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if (ISNUM (2))
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{
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ucChar2 = hb_parnl (2)%256;
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}
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else
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{
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ucChar2 = *((unsigned char *)hb_parc (2));
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}
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iMode = (ucChar2 < ucChar1);
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pcRet = ( char * )hb_xgrab (sStrLen);
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sRetIndex = 0;
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for (pc = pcString; pc < pcString+sStrLen; pc++)
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{
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iBool = ((*pc) >= ucChar1);
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if (iMode)
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{
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iBool |= ((*pc) <= ucChar2);
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}
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else
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{
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iBool &= ((*pc) <= ucChar2);
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}
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if (!iBool)
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{
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*(pcRet+sRetIndex) = *pc;
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sRetIndex++;
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}
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}
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hb_retclen (pcRet, sRetIndex+1);
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}
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else /* ((hb_parclen (1) > 0) || ISNUM (1)) &&
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((hb_parclen (2) > 0) || ISNUM (2)) &&
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ISCHAR (3)) */
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{
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PHB_ITEM pSubst = NULL;
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int iArgErrorMode = ct_getargerrormode();
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if (iArgErrorMode != CT_ARGERR_IGNORE)
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{
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pSubst = ct_error_subst ((USHORT)iArgErrorMode, EG_ARG, CT_ERROR_RANGEREM,
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NULL, "RANGEREM", 0, EF_CANSUBSTITUTE, 3,
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hb_paramError (1), hb_paramError (2),
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hb_paramError (3));
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}
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if (pSubst != NULL)
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{
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hb_itemReturn (pSubst);
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hb_itemRelease (pSubst);
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}
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else
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{
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if (ISCHAR (3))
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{
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hb_retclen (hb_parc (3), hb_parclen (3));
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}
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else
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{
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hb_retc ("");
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}
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}
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return;
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}
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return;
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}
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/* $DOC$
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* $FUNCNAME$
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* RANGEREPL
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* $CATEGORY$
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* CT3 string functions
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* $ONELINER$
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* Replace characters within a certain ASCII range from a string
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* $SYNTAX$
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* RANGEREPL (<cChar1|nChar1>, <cChar2|nChar2>,
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* <[@]cString>, <cReplacementChar|nReplacementChar>) -> cString
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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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* RANGEREPL() is compatible with CT3's RANGEREPL().
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* $PLATFORMS$
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* All
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* $FILES$
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* Source is range.c, library is libct.
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* $SEEALSO$
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* RANGEREM()
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* $END$
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*/
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HB_FUNC (RANGEREPL)
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{
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int iNoRef = ct_getref();
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if (((hb_parclen (1) > 0) || ISNUM (1)) &&
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((hb_parclen (2) > 0) || ISNUM (2)) &&
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ISCHAR (3) &&
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((hb_parclen (4) > 0) || ISNUM (4)))
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{
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char *pcString = (char *)hb_parc (3);
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size_t sStrLen = (size_t)hb_parclen (3);
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char *pcRet, *pc;
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unsigned char ucChar1, ucChar2, ucReplace;
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size_t sRetIndex;
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int iMode, iBool;
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if (ISNUM (1))
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{
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ucChar1 = hb_parnl (1)%256;
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}
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else
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{
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ucChar1 = *((unsigned char *)hb_parc (1));
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}
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if (ISNUM (2))
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{
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ucChar2 = hb_parnl (2)%256;
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}
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else
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{
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ucChar2 = *((unsigned char *)hb_parc (2));
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}
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if (ISNUM (4))
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{
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ucReplace = hb_parnl (4)%256;
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}
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else
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{
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ucReplace = *((unsigned char *)hb_parc (4));
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}
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iMode = (ucChar2 < ucChar1);
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pcRet = ( char * )hb_xgrab (sStrLen);
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sRetIndex = 0;
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for (pc = pcString; pc < pcString+sStrLen; pc++)
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{
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iBool = ((*pc) >= ucChar1);
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if (iMode)
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{
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iBool |= ((*pc) <= ucChar2);
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}
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else
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{
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iBool &= ((*pc) <= ucChar2);
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}
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if (iBool)
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{
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*(pcRet+sRetIndex) = ucReplace;
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sRetIndex++;
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}
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else
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{
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*(pcRet+sRetIndex) = *pc;
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sRetIndex++;
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}
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}
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if (ISBYREF (3))
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{
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hb_storclen (pcRet, sRetIndex+1, 3);
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}
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if (iNoRef)
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{
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hb_ret();
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}
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else
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{
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hb_retclen (pcRet, sRetIndex+1);
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}
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}
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else /* ((hb_parclen (1) > 0) || ISNUM (1)) &&
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((hb_parclen (2) > 0) || ISNUM (2)) &&
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ISCHAR (3) &&
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((hb_parclen (4) > 0))) */
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{
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PHB_ITEM pSubst = NULL;
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int iArgErrorMode = ct_getargerrormode();
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if (iArgErrorMode != CT_ARGERR_IGNORE)
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{
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pSubst = ct_error_subst ((USHORT)iArgErrorMode, EG_ARG, CT_ERROR_RANGEREPL,
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NULL, "RANGEREPL", 0, EF_CANSUBSTITUTE, 4,
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hb_paramError (1), hb_paramError (2),
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hb_paramError (3), hb_paramError (4));
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}
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if (pSubst != NULL)
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{
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hb_itemReturn (pSubst);
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hb_itemRelease (pSubst);
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}
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else
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{
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if (iNoRef)
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{
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hb_ret();
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}
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else
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{
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if (ISCHAR (3))
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{
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hb_retclen (hb_parc (3), hb_parclen (3));
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}
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else
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{
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hb_retc ("");
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}
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}
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}
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return;
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}
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return;
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}
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