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harbour-core/harbour/source/rtl/mlcfunc.c
Przemyslaw Czerpak ff3876d887 2007-05-19 15:40 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/include/hbclass.ch
    * formatting

  * harbour/include/hbpp.h
  * harbour/source/pp/ppcore.c
    + added support for:
         #pragma escapedstrings = on
         cStr := "some value with internal \" character"
         #pragma escapedstrings = off
    + added support for multiline strings in escaped strings

  * harbour/source/compiler/gencobj.c
    * minor simplification

  * harbour/source/rtl/hbffind.c
    * always set hb_fsError()

  * harbour/source/rtl/mlcfunc.c
    ! fixed minor typo
2007-05-19 13:41:20 +00:00

434 lines
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/*
* $Id$
*/
/*
* Harbour Project source code:
* memo line functions: MEMOLINE(), MLCOUNT(), MLPOS(), MLCTOPOS(), MPOSTOLC()
*
* Copyright 2007 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
* www - http://www.harbour-project.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "hbapi.h"
#include "hbapiitm.h"
#include "hbset.h"
typedef struct
{
char * szEOL;
ULONG ulLen;
} HB_EOL_INFO, * PHB_EOL_INFO;
static ULONG hb_mlGetLine( char * pszString, ULONG ulLen, ULONG ulOffset,
ULONG ulLineLength, ULONG ulTabSize, ULONG ulMaxPos,
BOOL fWordWrap, PHB_EOL_INFO pEOLs, int iEOLs,
ULONG * pulLen, ULONG * pulEOL )
{
ULONG ulCol = 0, ulBlankCol = 0, ulBlankPos = 0;
int i;
if( pulEOL )
* pulEOL = 0;
while( ulOffset < ulLen && ( ulMaxPos == 0 || ulOffset < ulMaxPos ) )
{
for( i = 0; i < iEOLs; ++i )
{
if( ulLen - ulOffset >= pEOLs[ i ].ulLen &&
memcmp( pszString + ulOffset, pEOLs[ i ].szEOL, pEOLs[ i ].ulLen ) == 0 )
{
if( ulMaxPos )
ulCol += pEOLs[ i ].ulLen;
else
ulOffset += pEOLs[ i ].ulLen;
* pulLen = ulCol;
if( pulEOL )
* pulEOL = pEOLs[ i ].ulLen;
return ulOffset;
}
}
if( pszString[ ulOffset ] == ' ' || pszString[ ulOffset ] == HB_CHAR_HT )
{
ulBlankCol = ulCol;
ulBlankPos = ulOffset;
}
if( pszString[ ulOffset ] == HB_CHAR_HT )
ulCol += ulTabSize - ( ulCol % ulTabSize );
else if( pszString[ ulOffset ] == HB_CHAR_SOFT1 &&
pszString[ ulOffset + 1 ] == HB_CHAR_SOFT2 )
{
ulOffset++;
if( !fWordWrap )
{
ulOffset++;
* pulLen = ulCol;
break;
}
}
else
ulCol++;
ulOffset++;
if( ulCol >= ulLineLength )
{
if( fWordWrap )
{
if( ulBlankCol == 0 || pszString[ ulOffset ] == ' ' ||
pszString[ ulOffset ] == HB_CHAR_HT )
{
ulCol = ulLineLength;
if( pszString[ ulOffset ] == ' ' )
++ulOffset;
}
else
{
ulCol = ulBlankCol;
ulOffset = ulBlankPos + 1;
}
}
else
{
if( ulCol > ulLineLength )
--ulOffset;
ulCol = ulLineLength;
}
break;
}
}
* pulLen = ulCol;
return ulOffset;
}
static PHB_EOL_INFO hb_mlGetEOLs( int iParam, int * piEOLs )
{
PHB_EOL_INFO pEOLs = NULL;
int iEOLs = 0;
char * szEOL;
#ifndef HB_C52_STRICT
ULONG ulLen, ul;
szEOL = hb_parc( iParam );
if( szEOL )
{
ulLen = hb_parclen( iParam );
if( ulLen )
{
pEOLs = ( PHB_EOL_INFO ) hb_xgrab( sizeof( HB_EOL_INFO ) );
pEOLs->szEOL = szEOL;
pEOLs->ulLen = ulLen;
iEOLs = 1;
}
}
else if( ISARRAY( iParam ) )
{
PHB_ITEM pArray = hb_param( iParam, HB_IT_ARRAY );
ULONG ulSize = hb_arrayLen( pArray );
for( ul = 1; ul <= ulSize; ++ul )
{
if( hb_arrayGetCLen( pArray, ul ) > 0 )
++iEOLs;
}
if( iEOLs )
{
iEOLs = 0;
pEOLs = ( PHB_EOL_INFO ) hb_xgrab( sizeof( HB_EOL_INFO ) * iEOLs );
for( ul = 1; ul <= ulSize; ++ul )
{
ULONG ulLen = hb_arrayGetCLen( pArray, ul );
if( ulLen > 0 )
{
pEOLs[ iEOLs ].szEOL = hb_arrayGetCPtr( pArray, ul );
pEOLs[ iEOLs ].ulLen = ulLen;
++iEOLs;
}
}
}
}
#endif
if( iEOLs == 0 )
{
pEOLs = ( PHB_EOL_INFO ) hb_xgrab( sizeof( HB_EOL_INFO ) );
if( hb_set.HB_SET_EOL && hb_set.HB_SET_EOL[ 0 ] )
pEOLs->szEOL = hb_set.HB_SET_EOL;
else
pEOLs->szEOL = hb_conNewLine();
pEOLs->ulLen = strlen( pEOLs->szEOL );
iEOLs = pEOLs->ulLen ? 1 : 0;
}
* piEOLs = iEOLs;
return pEOLs;
}
static char * hb_mlGetParams( int iParAdd, ULONG * pulLen, ULONG * pulLineLength,
ULONG * pulTabSize, BOOL * pfWordWrap,
PHB_EOL_INFO * pEOLs, int * piEOLs )
{
char * pszString = hb_parc( 1 );
if( pszString )
{
if( ISNUM( 2 ) )
{
if( hb_parnd( 2 ) <= 0 )
return NULL;
* pulLineLength = hb_parnl( 2 );
}
else
* pulLineLength = 79;
* pulLen = hb_parclen( 1 );
* pulTabSize = ISNUM( 3 + iParAdd ) ? hb_parnl( 3 + iParAdd ) : 4;
* pfWordWrap = ISLOG( 4 + iParAdd ) ? hb_parl( 4 + iParAdd ) : TRUE;
* pEOLs = hb_mlGetEOLs( 5 + iParAdd, piEOLs );
#ifdef HB_C52_STRICT
if( * pulLineLength > 254 )
* pulLineLength = 79;
#endif
if( * pulTabSize >= * pulLineLength )
* pulTabSize = * pulLineLength - 1;
else if( * pulTabSize == 0 )
* pulTabSize = 1;
}
return pszString;
}
HB_FUNC( MEMOLINE )
{
ULONG ulLen, ulLineLength, ulTabSize;
BOOL fWordWrap;
PHB_EOL_INFO pEOLs;
int iEOLs;
char * pszString = hb_mlGetParams( 1, &ulLen, &ulLineLength,
&ulTabSize, &fWordWrap, &pEOLs, &iEOLs );
char * szLine;
ULONG ulLine = hb_parnl( 3 );
ULONG ulOffset = 0;
ULONG ulCols = 0;
if( !pszString )
{
hb_retc( NULL );
return;
}
if( ulLine == 0 )
ulLine = 1;
while( --ulLine && ulOffset < ulLen )
{
ulOffset = hb_mlGetLine( pszString, ulLen, ulOffset,
ulLineLength, ulTabSize, 0, fWordWrap,
pEOLs, iEOLs, &ulCols, NULL );
}
if( ulOffset < ulLen )
{
ULONG ulCol = 0;
hb_mlGetLine( pszString, ulLen, ulOffset,
ulLineLength, ulTabSize, 0, fWordWrap,
pEOLs, iEOLs, &ulCols, NULL );
szLine = ( char * ) hb_xgrab( ulLineLength + 1 );
while( ulCol < ulCols )
{
if( pszString[ ulOffset ] == HB_CHAR_HT )
{
ULONG ul = ulTabSize - ( ulCol % ulTabSize );
do
szLine[ ulCol++ ] = ' ';
while( --ul && ulCol < ulCols );
}
else if( pszString[ ulOffset ] == HB_CHAR_SOFT1 &&
pszString[ ulOffset + 1 ] == HB_CHAR_SOFT2 )
ulOffset++;
else
szLine[ ulCol++ ] = pszString[ ulOffset ];
ulOffset++;
}
if( ulCols < ulLineLength )
memset( szLine + ulCols, ' ', ulLineLength - ulCols );
szLine[ ulLineLength ] = 0;
hb_retclen_buffer( szLine, ulLineLength );
}
else
hb_retc( NULL );
hb_xfree( pEOLs );
}
HB_FUNC( MLCOUNT )
{
ULONG ulLen, ulLineLength, ulTabSize;
BOOL fWordWrap;
PHB_EOL_INFO pEOLs;
int iEOLs;
char * pszString = hb_mlGetParams( 0, &ulLen, &ulLineLength,
&ulTabSize, &fWordWrap, &pEOLs, &iEOLs );
ULONG ulLines = 0;
ULONG ulOffset = 0;
ULONG ulCols = 0;
if( pszString )
{
while( ulOffset < ulLen )
{
++ulLines;
ulOffset = hb_mlGetLine( pszString, ulLen, ulOffset,
ulLineLength, ulTabSize, 0, fWordWrap,
pEOLs, iEOLs, &ulCols, NULL );
}
hb_xfree( pEOLs );
}
hb_retnl( ulLines );
}
HB_FUNC( MLPOS )
{
ULONG ulLen, ulLineLength, ulTabSize;
BOOL fWordWrap;
PHB_EOL_INFO pEOLs;
int iEOLs;
char * pszString = hb_mlGetParams( 1, &ulLen, &ulLineLength,
&ulTabSize, &fWordWrap, &pEOLs, &iEOLs );
ULONG ulLine = hb_parnl( 3 );
ULONG ulOffset = 0;
ULONG ulCols = 0;
if( pszString )
{
if( ulLine == 0 )
ulLine = 1;
while( --ulLine && ulOffset < ulLen )
ulOffset = hb_mlGetLine( pszString, ulLen, ulOffset,
ulLineLength, ulTabSize, 0, fWordWrap,
pEOLs, iEOLs, &ulCols, NULL );
if( ulOffset < ulLen )
++ulOffset;
hb_xfree( pEOLs );
}
hb_retnl( ulOffset );
}
HB_FUNC( MLCTOPOS )
{
ULONG ulLen, ulLineLength, ulTabSize;
BOOL fWordWrap;
PHB_EOL_INFO pEOLs;
int iEOLs;
char * pszString = hb_mlGetParams( 2, &ulLen, &ulLineLength,
&ulTabSize, &fWordWrap, &pEOLs, &iEOLs );
ULONG ulLine = hb_parnl( 3 );
ULONG ulCol = hb_parnl( 4 );
ULONG ulOffset = 0;
ULONG ulCols = 0;
if( pszString )
{
if( ulLineLength > 4 && ulLine && ISNUM( 4 ) )
{
while( --ulLine && ulOffset < ulLen )
ulOffset = hb_mlGetLine( pszString, ulLen, ulOffset,
ulLineLength, ulTabSize, 0, fWordWrap,
pEOLs, iEOLs, &ulCols, NULL );
if( ulOffset < ulLen && ulCol )
ulOffset = hb_mlGetLine( pszString, ulLen, ulOffset,
ulCol, ulTabSize, ulLen, FALSE,
pEOLs, iEOLs, &ulCols, NULL );
}
hb_xfree( pEOLs );
}
++ulOffset;
hb_retnl( ulOffset );
}
HB_FUNC( MPOSTOLC )
{
ULONG ulLen, ulLineLength, ulTabSize;
BOOL fWordWrap;
PHB_EOL_INFO pEOLs;
int iEOLs;
char * pszString = hb_mlGetParams( 1, &ulLen, &ulLineLength,
&ulTabSize, &fWordWrap, &pEOLs, &iEOLs );
ULONG ulPos = hb_parnl( 3 );
ULONG ulOffset = 0;
ULONG ulLine = 0;
ULONG ulCol = 0;
ULONG ulEOL = 0;
if( pszString )
{
if( ulPos && ulLen )
{
if( --ulPos )
{
do
{
++ulLine;
ulOffset = hb_mlGetLine( pszString, ulLen, ulOffset,
ulLineLength, ulTabSize, ulPos, fWordWrap,
pEOLs, iEOLs, &ulCol, &ulEOL );
if( ulEOL )
{
if( ulOffset + ulEOL == ulPos )
{
ulCol = 0;
++ulLine;
break;
}
ulOffset += ulEOL;
}
}
while( ulOffset < ulLen && ulOffset < ulPos );
}
else
++ulLine;
}
hb_xfree( pEOLs );
}
hb_reta( 2 );
hb_stornl( ulLine, -1, 1 );
hb_stornl( ulCol, -1, 2 );
}
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