302 lines
8.1 KiB
C
302 lines
8.1 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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* The Date API (Harbour level)
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*
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* Copyright 1999 Antonio Linares <alinares@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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/*
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* The following parts are Copyright of the individual authors.
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* www - http://www.harbour-project.org
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*
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* Copyright 1999 Jose Lalin <dezac@corevia.com>
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* DAY()
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* MONTH()
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* YEAR()
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* DOW()
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*
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* Copyright 1999 David G. Holm <dholm@jsd-llc.com>
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* CTOD()
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* DATE()
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*
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* Copyright 1999-2001 Viktor Szakats <viktor.szakats@syenar.hu>
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* HB_STOD()
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*
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* See doc/license.txt for licensing terms.
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*
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*/
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#include <ctype.h>
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#include "hbapi.h"
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#include "hbapierr.h"
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#include "hbapiitm.h"
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#include "hbset.h"
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#include "hbdate.h"
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HB_FUNC( CTOD )
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{
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if( ISCHAR( 1 ) )
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{
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char * szDate = hb_parc( 1 );
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int d_value = 0, m_value = 0, y_value = 0;
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char szDateFormat[ 9 ];
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if( szDate )
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{
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int d_pos = 0, m_pos = 0, y_pos = 0;
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int count, digit, non_digit, size = strlen( hb_set.HB_SET_DATEFORMAT );
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for( count = 0; count < size; count++ )
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{
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switch( hb_set.HB_SET_DATEFORMAT[ count ] )
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{
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case 'D':
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case 'd':
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if( d_pos == 0 )
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{
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if( m_pos == 0 && y_pos == 0 ) d_pos = 1;
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else if( m_pos == 0 || y_pos == 0 ) d_pos = 2;
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else d_pos = 3;
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}
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break;
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case 'M':
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case 'm':
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if( m_pos == 0 )
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{
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if( d_pos == 0 && y_pos == 0 ) m_pos = 1;
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else if( d_pos == 0 || y_pos == 0 ) m_pos = 2;
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else m_pos = 3;
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}
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break;
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case 'Y':
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case 'y':
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if( y_pos == 0 )
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{
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if( m_pos == 0 && d_pos == 0 ) y_pos = 1;
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else if( m_pos == 0 || d_pos == 0 ) y_pos = 2;
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else y_pos = 3;
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}
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}
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}
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/* If there are non-digits at the start of the date field,
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they are not to be treated as date field separators */
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non_digit = 1;
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size = strlen( szDate );
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for( count = 0; count < size; count++ )
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{
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digit = szDate[ count ];
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if( isdigit( digit ) )
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{
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/* Process the digit for the current date field */
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if( d_pos == 1 )
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d_value = ( d_value * 10 ) + digit - '0';
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else if( m_pos == 1 )
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m_value = ( m_value * 10 ) + digit - '0';
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else if( y_pos == 1 )
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y_value = ( y_value * 10 ) + digit - '0';
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/* Treat the next non-digit as a date field separator */
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non_digit = 0;
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}
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else if( digit != ' ' )
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{
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/* Process the non-digit */
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if( non_digit++ == 0 )
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{
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/* Only move to the next date field on the first
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consecutive non-digit that is encountered */
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d_pos--;
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m_pos--;
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y_pos--;
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}
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}
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}
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if( y_value >= 0 && y_value < 100 )
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{
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count = hb_set.HB_SET_EPOCH % 100;
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digit = hb_set.HB_SET_EPOCH / 100;
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if( y_value >= count )
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y_value += ( digit * 100 );
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else
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y_value += ( ( digit * 100 ) + 100 );
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}
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}
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sprintf( szDateFormat, "%04i%02i%02i", y_value, m_value, d_value );
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hb_retds( szDateFormat );
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 1119, NULL, "CTOD", 1, hb_paramError( 1 ) );
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}
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HB_FUNC( DTOC )
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{
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if( ISDATE( 1 ) )
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{
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char szDate[ 9 ];
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char szFormatted[ 11 ];
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hb_retc( hb_dateFormat( hb_pardsbuff( szDate, 1 ), szFormatted, hb_set.HB_SET_DATEFORMAT ) );
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 1118, NULL, "DTOC", 1, hb_paramError( 1 ) );
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}
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HB_FUNC( DTOS )
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{
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if( ISDATE( 1 ) )
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{
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char szDate[ 9 ];
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hb_retc( hb_pardsbuff( szDate, 1 ) );
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 1120, NULL, "DTOS", 1, hb_paramError( 1 ) );
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}
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/* NOTE: Harbour extension, exactly the same as STOD(). */
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HB_FUNC( HB_STOD )
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{
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#ifdef HB_FAST_STOD
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hb_retds( hb_parc( 1 ) );
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#else
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hb_retds( ( ISCHAR( 1 ) && hb_parclen( 1 ) == 8 ) ? hb_parc( 1 ) : " " );
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#endif
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}
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HB_FUNC( YEAR )
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{
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PHB_ITEM pDate = hb_param( 1, HB_IT_DATE );
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if( pDate )
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{
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long lYear, lMonth, lDay;
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hb_dateDecode( hb_itemGetDL( pDate ), &lYear, &lMonth, &lDay );
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hb_retnllen( lYear, 5 );
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 1112, NULL, "YEAR", 1, hb_paramError( 1 ) );
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}
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HB_FUNC( MONTH )
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{
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PHB_ITEM pDate = hb_param( 1, HB_IT_DATE );
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if( pDate )
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{
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long lYear, lMonth, lDay;
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hb_dateDecode( hb_itemGetDL( pDate ), &lYear, &lMonth, &lDay );
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hb_retnllen( lMonth, 3 );
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 1113, NULL, "MONTH", 1, hb_paramError( 1 ) );
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}
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HB_FUNC( DAY )
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{
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PHB_ITEM pDate = hb_param( 1, HB_IT_DATE );
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if( pDate )
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{
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long lYear, lMonth, lDay;
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hb_dateDecode( hb_itemGetDL( pDate ), &lYear, &lMonth, &lDay );
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hb_retnllen( lDay, 3 );
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 1114, NULL, "DAY", 1, hb_paramError( 1 ) );
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}
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HB_FUNC( TIME )
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{
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char szResult[ 9 ];
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hb_dateTimeStr( szResult );
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hb_retclen( szResult, 8 );
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}
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HB_FUNC( DATE )
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{
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long lYear, lMonth, lDay;
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hb_dateToday( &lYear, &lMonth, &lDay );
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hb_retd( lYear, lMonth, lDay );
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}
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HB_FUNC( DOW )
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{
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PHB_ITEM pDate = hb_param( 1, HB_IT_DATE );
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if( pDate )
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{
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long lDate = hb_itemGetDL( pDate );
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if( lDate )
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{
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long lYear, lMonth, lDay;
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hb_dateDecode( lDate, &lYear, &lMonth, &lDay );
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hb_retnllen( hb_dateDOW( lYear, lMonth, lDay ), 3 );
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}
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else
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hb_retnllen( 0, 3 );
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 1115, NULL, "DOW", 1, hb_paramError( 1 ) );
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}
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