137 lines
4.1 KiB
C
137 lines
4.1 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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* MEMOTRAN() function
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*
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* Copyright 1999 Jose Lalin <dezac@corevia.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 of the License, or
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* (at your option) any later version, with one exception:
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*
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* The exception is that if you link the Harbour Runtime Library (HRL)
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* and/or the Harbour Virtual Machine (HVM) with other files to produce
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* an executable, this does not by itself cause the resulting executable
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* to be covered by the GNU General Public License. Your use of that
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* executable is in no way restricted on account of linking the HRL
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* and/or HVM code into it.
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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; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
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* their web site at http://www.gnu.org/).
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*
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*/
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/* $DOC$
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* $FUNCNAME$
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* MEMOTRAN
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* $CATEGORY$
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*
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* $ONELINER$
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* Converts hard and soft carriages within strings.
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* $SYNTAX$
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* MEMOTRAN( <cString>, <cHard>, <cSoft> ) --> <cConvertedString>
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* $ARGUMENTS$
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* <cString> is a string of chars to convert.
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* <cHard> is the character to replace hard carriages with. If not
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* specified defaults to semicolon.
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* <cSoft> is the character to replace soft carriages with. If not
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* specified defaults to single space.
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* $RETURNS$
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* Trasformed string.
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* $DESCRIPTION$
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* Returns a string/memo with carriage chars converted to specified
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* chars.
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* $EXAMPLES$
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* ? MEMOTRAN( DATA->CNOTES )
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* $TESTS$
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* @ 1, 1 SAY MEMOTRAN( Data->CNOTES )
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* will display converted string starting on row two, column two of the
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* current device.
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* $STATUS$
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* C
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* $COMPLIANCE$
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* MEMOTRAN is fully CA-Clipper compliant.
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* $SEEALSO$
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* HARDCR(), STRTRAN()
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* $END$
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*/
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#include "extend.h"
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#include "itemapi.h"
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#define CHR_HARD1 ( ( char ) HB_CHAR_CR )
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#define CHR_HARD2 ( ( char ) HB_CHAR_LF )
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#define CHR_SOFT1 ( ( char ) 141 )
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#define CHR_SOFT2 ( ( char ) HB_CHAR_LF )
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/* NOTE: pszResult must have an allocated buffer of at least */
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/* ulStringLen */
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char * hb_strMemotran( char * pszResult, ULONG * ulResultLen, const char * pszString, ULONG ulStringLen, char cHardcr, char cSoftcr )
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{
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ULONG ulStringPos = 0;
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ULONG ulResultPos = 0;
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HB_TRACE(HB_TR_DEBUG, ("hb_strMemotran(%s, %p, %s, %lu, %x, %x)", pszResult, ulResultLen, pszString, ulStringLen, cHardcr, cSoftcr));
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while( ulStringPos < ulStringLen )
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{
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if( pszString[ ulStringPos ] == CHR_HARD1 &&
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pszString[ ulStringPos + 1 ] == CHR_HARD2 )
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{
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pszResult[ ulResultPos++ ] = cHardcr;
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ulStringPos += 2;
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}
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else if( pszString[ ulStringPos ] == CHR_SOFT1 &&
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pszString[ ulStringPos + 1 ] == CHR_SOFT2 )
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{
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pszResult[ ulResultPos++ ] = cSoftcr;
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ulStringPos += 2;
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}
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else
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{
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pszResult[ ulResultPos++ ] = pszString[ ulStringPos++ ];
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}
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}
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pszResult[ ulResultPos ] = '\0';
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*ulResultLen = ulResultPos;
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return pszResult;
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}
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HARBOUR HB_MEMOTRAN( void )
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{
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PHB_ITEM pString = hb_param( 1, IT_STRING );
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if( pString )
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{
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char * pszResult = ( char * ) hb_xgrab( hb_itemGetCLen( pString ) + 1 );
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char cHardcr = ISCHAR( 2 ) ? *hb_parc( 2 ) : ';';
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char cSoftcr = ISCHAR( 3 ) ? *hb_parc( 3 ) : ' ';
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ULONG ulResultLen;
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hb_strMemotran( pszResult, &ulResultLen, hb_itemGetCPtr( pString ), hb_itemGetCLen( pString ), cHardcr, cSoftcr );
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hb_retclen( pszResult, ulResultLen );
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hb_xfree( pszResult );
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}
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else
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hb_retc( "" );
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}
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