278 lines
8.3 KiB
C
278 lines
8.3 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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* Preprocessor & Compiler integration module
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*
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* Copyright 1999 Alexander S.Kresin <alex@belacy.belgorod.su>
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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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/*
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* Avoid tracing in preprocessor/compiler.
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*/
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#if ! defined(HB_TRACE_UTILS)
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#if defined(HB_TRACE_LEVEL)
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#undef HB_TRACE_LEVEL
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#endif
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "hbpp.h"
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#include "hbcomp.h"
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static char s_szLine[ HB_PP_STR_SIZE ];
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static char s_szOutLine[ HB_PP_STR_SIZE ];
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int hb_pp_Internal( FILE * handl_o, char * sOut )
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{
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PFILE pFile;
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char * ptr, * ptrOut;
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int lContinue;
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int lens, rdlen;
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int lLine = 0, i;
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HB_TRACE(HB_TR_DEBUG, ("hb_pp_Internal(%p, %s)", handl_o, sOut));
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hb_pp_nEmptyStrings = 0;
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while( TRUE )
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{
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pFile = hb_comp_files.pLast;
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lens = lContinue = 0;
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ptrOut = sOut;
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while( ( rdlen = hb_pp_RdStr( pFile->handle, s_szLine + lens, HB_PP_STR_SIZE -
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lens, lContinue, ( char * ) pFile->pBuffer, &( pFile->lenBuffer ),
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&( pFile->iBuffer ) ) ) >= 0 )
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{
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lens += rdlen;
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if( s_szLine[ lens - 1 ] == ';' )
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{
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lContinue = 1;
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lens--;
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lens--;
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while( s_szLine[ lens ] == ' ' || s_szLine[ lens ] == '\t' ) lens--;
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s_szLine[ ++lens ] = ' ';
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s_szLine[ ++lens ] = '\0';
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hb_pp_nEmptyStrings++;
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}
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else
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{
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lContinue = 0;
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lens = 0;
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}
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if( !lContinue )
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{
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if( *s_szLine != '\0' )
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{
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ptr = s_szLine;
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HB_SKIPTABSPACES( ptr );
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if( *ptr == '#' )
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{
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hb_pp_ParseDirective( ptr + 1 );
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if( pFile != hb_comp_files.pLast )
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{
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pFile = ( PFILE ) ( ( PFILE ) hb_comp_files.pLast )->pPrev;
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if( lLine )
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sprintf( s_szLine, "#line %d \"%s\"\n",
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pFile->iLine+hb_pp_nEmptyStrings, pFile->szFileName );
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else
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*s_szLine = '\0';
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lLine = 0;
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pFile->iLine += 1+hb_pp_nEmptyStrings;
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sprintf( s_szLine+strlen(s_szLine), "#line 1 \"%s\"",
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hb_comp_files.pLast->szFileName );
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hb_pp_nEmptyStrings = 0;
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}
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else
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{
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*s_szLine = '\0';
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hb_pp_nEmptyStrings++;
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}
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}
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else
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{
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if( hb_pp_nCondCompile == 0 || hb_pp_aCondCompile[ hb_pp_nCondCompile - 1 ] )
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{
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hb_pp_ParseExpression( ptr, s_szOutLine );
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}
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else
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{
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*s_szLine = '\0';
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hb_pp_nEmptyStrings++;
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}
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}
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}
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else
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hb_pp_nEmptyStrings++;
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break;
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}
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}
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if( rdlen < 0 )
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{
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if( hb_comp_files.iFiles == 1 )
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return 0; /* we have reached the main EOF */
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else
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{ /* we close the currently include file and continue */
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fclose( hb_comp_files.pLast->handle );
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hb_xfree( hb_comp_files.pLast->pBuffer );
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hb_xfree( hb_comp_files.pLast->szFileName );
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pFile = ( PFILE ) ( ( PFILE ) hb_comp_files.pLast )->pPrev;
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hb_xfree( hb_comp_files.pLast );
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hb_comp_files.pLast = pFile;
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hb_comp_iLine = hb_comp_files.pLast->iLine;
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hb_comp_files.iFiles--;
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lLine = 1;
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hb_pp_nEmptyStrings = 0;
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}
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}
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if( *s_szLine ) break;
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}
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if( lLine )
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{
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sprintf( ptrOut, "#line %d \"%s\"\n",hb_comp_iLine+hb_pp_nEmptyStrings,hb_comp_files.pLast->szFileName );
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while( *ptrOut ) ptrOut++;
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}
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else
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{
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if( hb_pp_nEmptyStrings )
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for( i=0;i<hb_pp_nEmptyStrings;i++ )
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*ptrOut++ = '\n';
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}
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lens = hb_pp_strocpy( ptrOut, s_szLine ) + ( ptrOut - sOut );
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*( sOut + lens++ ) = '\n';
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*( sOut + lens ) = '\0';
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if( handl_o )
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hb_pp_WrStr( handl_o, sOut );
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return lens;
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}
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int hb_pp_ReadRules( void )
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{
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PFILE pFile;
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char * ptr;
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int lContinue;
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int lens, rdlen;
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int lLine = 0;
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HB_TRACE(HB_TR_DEBUG, ("hb_pp_ReadRules()"));
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hb_pp_nEmptyStrings = 0;
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while( TRUE )
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{
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pFile = hb_comp_files.pLast;
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lens = lContinue = 0;
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while( ( rdlen = hb_pp_RdStr( pFile->handle, s_szLine + lens, HB_PP_STR_SIZE -
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lens, lContinue, ( char * ) pFile->pBuffer, &( pFile->lenBuffer ),
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&( pFile->iBuffer ) ) ) >= 0 )
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{
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lens += rdlen;
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if( s_szLine[ lens - 1 ] == ';' )
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{
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lContinue = 1;
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lens--;
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lens--;
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while( s_szLine[ lens ] == ' ' || s_szLine[ lens ] == '\t' ) lens--;
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s_szLine[ ++lens ] = ' ';
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s_szLine[ ++lens ] = '\0';
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hb_pp_nEmptyStrings++;
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}
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else
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{
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lContinue = 0;
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lens = 0;
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}
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if( !lContinue )
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{
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if( *s_szLine != '\0' )
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{
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ptr = s_szLine;
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HB_SKIPTABSPACES( ptr );
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if( *ptr == '#' )
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{
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hb_pp_ParseDirective( ptr + 1 );
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if( pFile != hb_comp_files.pLast )
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{
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pFile = ( PFILE ) ( ( PFILE ) hb_comp_files.pLast )->pPrev;
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if( lLine == 0)
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*s_szLine = '\0';
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lLine = 0;
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pFile->iLine += 1+hb_pp_nEmptyStrings;
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hb_pp_nEmptyStrings = 0;
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}
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else
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{
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*s_szLine = '\0';
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hb_pp_nEmptyStrings++;
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}
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}
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else
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{
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*s_szLine = '\0';
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hb_pp_nEmptyStrings++;
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}
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}
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else
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hb_pp_nEmptyStrings++;
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break;
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}
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}
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if( rdlen < 0 )
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{
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if( hb_comp_files.iFiles == 1 )
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return 0; /* we have reached the main EOF */
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else
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{ /* we close the currently include file and continue */
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fclose( hb_comp_files.pLast->handle );
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hb_xfree( hb_comp_files.pLast->pBuffer );
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hb_xfree( hb_comp_files.pLast->szFileName );
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pFile = ( PFILE ) ( ( PFILE ) hb_comp_files.pLast )->pPrev;
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hb_xfree( hb_comp_files.pLast );
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hb_comp_files.pLast = pFile;
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hb_comp_iLine = hb_comp_files.pLast->iLine;
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hb_comp_files.iFiles--;
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lLine = 1;
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hb_pp_nEmptyStrings = 0;
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}
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}
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if( *s_szLine ) break;
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}
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return lens;
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}
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