121 lines
3.7 KiB
C
121 lines
3.7 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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* MLCOUNT() function
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*
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* Copyright 1999 Ignacio Ortiz de Z£niga <ignacio@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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HB_FUNC( MLCOUNT )
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{
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char * pszString = ISCHAR( 1 ) ? hb_parc( 1 ) : "";
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ULONG ulLineLength = ISNUM( 2 ) ? hb_parni( 2 ) : 79;
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ULONG ulTabLength = ISNUM( 3 ) ? hb_parni( 3 ) : 4;
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ULONG ulLastSpace = 0;
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ULONG ulCurLength = 0;
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BOOL bWordWrap = ISLOG( 4 ) ? hb_parl( 4 ) : TRUE;
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ULONG ulLen = hb_parclen( 1 );
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ULONG ulLines = 0;
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ULONG ulPos;
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if( ulLineLength < 4 || ulLineLength > 254 )
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ulLineLength = 79;
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if( ulTabLength > ulLineLength )
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ulTabLength = ulLineLength - 1;
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for( ulPos = 0; ulPos < ulLen; ulPos++ )
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{
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switch( pszString[ ulPos ] )
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{
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case HB_CHAR_HT:
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ulCurLength = ( ( ULONG ) ( ulCurLength / ulTabLength ) * ulTabLength ) + ulTabLength;
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ulLastSpace = ulCurLength;
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break;
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case HB_CHAR_LF:
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ulCurLength = 0;
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ulLastSpace = 0;
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ulLines++;
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break;
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case HB_CHAR_CR:
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break;
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case ' ':
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ulCurLength++;
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ulLastSpace = ulCurLength;
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break;
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default:
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ulCurLength++;
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}
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if( ulCurLength > ulLineLength )
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{
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if( bWordWrap )
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{
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if( ulLastSpace == 0 )
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ulCurLength = 1;
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else
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ulCurLength = ulCurLength - ulLastSpace;
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}
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else
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ulCurLength = 1;
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ulLines++;
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ulLastSpace = 0;
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}
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}
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if( ulCurLength > 0 )
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ulLines++;
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hb_retnl( ulLines );
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} |