Files
harbour-core/harbour/source/hbpp/stdalone/hbpp.c
1999-09-03 06:11:10 +00:00

611 lines
17 KiB
C

/*
* $Id$
Harbour Project source code
This file contains some functions of preprocessor, which need for
standalone version ( including main() function ).
Copyright 1999 Alexander S.Kresin <alex@belacy.belgorod.su>
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 of the License, or
(at your option) any later version, with one exception:
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 program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
their web site at http://www.gnu.org/).
*/
#include <stdlib.h>
#if defined(__GNUC__)
#include <unistd.h>
#else
#if ! defined(__MPW__)
#include <malloc.h>
#endif
#if (defined(_MSC_VER) || defined(__IBMCPP__))
#include <memory.h>
#else
#include <mem.h>
#endif
#endif
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include "hbpp.h"
#include "hberrors.h"
extern int pp_strAt(char *, int, char*, int);
extern void pp_Stuff (char*, char*, int, int, int);
int Hp_Parse( FILE*, FILE* );
void OutTable( DEFINES*, COMMANDS* );
void AddSearchPath( char *, PATHNAMES * * ); /* add pathname to a search list */
char sLine[STR_SIZE], sOutLine[STR_SIZE];
PATHNAMES *_pIncludePath = NULL;
PHB_FNAME _pFileName = NULL;
BOOL _bWarnings = FALSE;
int main (int argc,char* argv[])
{
FILE *handl_i,*handl_o;
char szFileName[ _POSIX_PATH_MAX ];
char * szDefText;
int iArg = 1, i;
BOOL bOutTable = FALSE;
BOOL bOutNew = FALSE;
DEFINES *stdef = topDefine;
COMMANDS *stcmd = topCommand;
printf( "Harbour preprocessor\n" );
while( iArg < argc )
{
if( IS_OPT_SEP(argv[ iArg ][ 0 ]))
{
switch( argv[ iArg ][ 1 ] )
{
case 'd':
case 'D': /* defines a #define from the command line */
{
i = 0;
szDefText = strodup( argv[ iArg ] + 2 );
while( i < strolen( szDefText ) && szDefText[ i ] != '=' )
i++;
if( szDefText[ i ] != '=' )
AddDefine( szDefText, 0 );
else
{
szDefText[ i ] = 0;
AddDefine( szDefText, szDefText + i + 1 );
}
free( szDefText );
}
break;
case 'i':
case 'I':
AddSearchPath( argv[ iArg ]+2, &_pIncludePath );
break;
case 'o':
case 'O':
bOutTable = TRUE;
break;
case 'n':
case 'N':
bOutNew = TRUE;
break;
case 'w':
case 'W':
_bWarnings = TRUE;
break;
default:
printf( "\nInvalid command line option: %s\n", &argv[ iArg ][ 1 ] );
break;
}
}
else _pFileName =hb_fsFNameSplit( argv[ iArg ] );
iArg++;
}
if( _pFileName )
{
if( !_pFileName->szExtension ) _pFileName->szExtension =".prg";
hb_fsFNameMerge( szFileName, _pFileName );
if ((handl_i = fopen(szFileName, "r")) == NULL)
{ printf("\nCan't open %s\n",szFileName); return 1; }
printf( "\nParsing file %s\n", szFileName );
}
else
{
printf( "Syntax: hbpp <file.prg> [options]\n"
"\nOptions: \n"
"\t/d<id>[=<val>]\t#define <id>\n"
"\t/i<path>\tadd #include file search path\n"
"\t/o\t\tcreates hbpp.out with all tables\n"
"\t/n\t\twith those only, which defined in your file\n"
"\t/w\t\tenable warnings\n");
if( bOutTable )
OutTable( NULL, NULL );
return 1;
}
_pFileName->szExtension =".ppo";
hb_fsFNameMerge( szFileName, _pFileName );
if ((handl_o = fopen(szFileName, "wt" )) == NULL)
{ printf("\nCan't open %s\n",szFileName); return 1; }
{
char * szInclude = getenv( "INCLUDE" );
if( szInclude )
{
char * pPath;
char * pDelim;
pPath = szInclude = strodup( szInclude );
while( (pDelim = strchr( pPath, OS_PATH_LIST_SEPARATOR )) != NULL )
{
*pDelim = '\0';
AddSearchPath( pPath, &_pIncludePath );
pPath = pDelim + 1;
}
AddSearchPath( pPath, &_pIncludePath );
}
}
aCondCompile = (int*) hb_xgrab( sizeof(int) * 5 );
Hp_Parse(handl_i,handl_o );
fclose(handl_i); fclose(handl_o);
if( bOutTable )
OutTable( NULL, NULL );
else if( bOutNew )
OutTable( stdef, stcmd );
printf( "\nOk" );
return 0;
}
int Hp_Parse( FILE* handl_i, FILE* handl_o )
{
char sBuffer[BUFF_SIZE]; /* File read buffer */
char *ptr;
int lContinue = 0;
int iBuffer = 10, lenBuffer = 10;
int lens=0, rdlen;
while ( ( rdlen = pp_RdStr(handl_i,sLine+lens, STR_SIZE-lens,lContinue,
sBuffer,&lenBuffer,&iBuffer ) ) >= 0 )
{
if ( !lInclude ) nline++;
lens += rdlen;
if( sLine[lens-1] == ';' )
{
lContinue = 1;
lens--; lens--;
while ( sLine[lens] == ' ' || sLine[lens] == '\t' ) lens--;
if ( sLine[lens+1] == ' ' || sLine[lens+1] == '\t' ) lens++;
sLine[++lens] = '\0';
}
else { lContinue = 0; lens=0; }
if ( *sLine != '\0' && !lContinue )
{
printf( "\r line %i", nline );
ptr = sLine;
SKIPTABSPACES( ptr );
if ( *ptr == '#' )
{
if ( ParseDirective( ptr+1 ) == 0 )
*sLine = '\0';
}
else
{
if ( nCondCompile==0 || aCondCompile[nCondCompile-1])
ParseExpression( ptr, sOutLine );
else
*sLine = '\0';
}
}
if(!lInclude)
{
if( lContinue ) pp_WrStr(handl_o,"\n");
else pp_WrStr(handl_o,sLine);
}
}
return 0;
}
void OutTable( DEFINES* endDefine, COMMANDS* endCommand )
{
FILE *handl_o;
int ipos, len_mpatt, len_value;
int num;
DEFINES *stdef1 = topDefine, *stdef2 = NULL, *stdef3;
COMMANDS *stcmd1 = topCommand, *stcmd2 = NULL, *stcmd3;
while( stdef1 != endDefine )
{
stdef3 = stdef1->last;
stdef1->last = stdef2;
stdef2 = stdef1;
stdef1 = stdef3;
}
while( stcmd1 != endCommand )
{
stcmd3 = stcmd1->last;
stcmd1->last = stcmd2;
stcmd2 = stcmd1;
stcmd1 = stcmd3;
}
if ((handl_o = fopen("hbpp.out", "wt" )) == NULL)
{
printf( "\nCan't open hbpp.out\n" );
return;
}
num = 1;
while( stdef2 != NULL )
{
fprintf( handl_o,"\n static DEFINES sD___%i = ",num );
fprintf( handl_o,"{\"%s\",", stdef2->name);
if( stdef2->pars )
fprintf(handl_o, "\"%s\",", stdef2->pars);
else
fprintf(handl_o, "NULL,");
fprintf(handl_o, "%d,", stdef2->npars);
if( stdef2->value )
fprintf(handl_o, "\"%s\"", stdef2->value);
else
fprintf(handl_o, "NULL");
if( num == 1 )
fprintf(handl_o, ", NULL };");
else
fprintf(handl_o, ", &sD___%i };", num-1);
stdef2 = stdef2->last;
num++;
}
fprintf( handl_o,"\n DEFINES *topDefine = " );
if( num == 1 )
fprintf( handl_o,"NULL;" );
else
fprintf( handl_o," = &sD___%i;\n",num-1 );
num = 1;
while( stcmd2 != NULL )
{
fprintf( handl_o,"\n static COMMANDS sC___%i = ",num );
fprintf( handl_o,"{%d,\"%s\",",stcmd2->com_or_xcom, stcmd2->name);
if (stcmd2->mpatt !=NULL)
{
len_mpatt = strocpy( sLine, stcmd2->mpatt );
while( (ipos = pp_strAt( "\1", 1, sLine, len_mpatt) ) > 0 )
{
pp_Stuff ( "\\1", sLine+ipos-1, 2, 1, len_mpatt );
len_mpatt++;
}
fprintf(handl_o, "\"%s\",", sLine);
}
else
fprintf(handl_o, "NULL,");
if ( stcmd2->value !=NULL )
{
len_value = strocpy( sLine, stcmd2->value );
while( (ipos = pp_strAt( "\1", 1, sLine, len_value) ) > 0 )
{
pp_Stuff ( "\\1", sLine+ipos-1, 2, 1, len_value );
len_value++;
}
if( len_mpatt + len_value > 80 )
fprintf( handl_o, "\n " );
fprintf(handl_o, "\"%s\"",sLine);
}
else fprintf(handl_o, "NULL");
if( num == 1 )
fprintf(handl_o, ",NULL };");
else
fprintf(handl_o, ",&sC___%i };", num-1);
stcmd2 = stcmd2->last;
num++;
}
fprintf( handl_o,"\n COMMANDS *topCommand = " );
if( num == 1 )
fprintf( handl_o,"NULL;" );
else
fprintf( handl_o," = &sC___%i;\n",num-1 );
stcmd1 = topTranslate, stcmd2 = NULL;
while( stcmd1 != NULL )
{
stcmd3 = stcmd1->last;
stcmd1->last = stcmd2;
stcmd2 = stcmd1;
stcmd1 = stcmd3;
}
num = 1;
while( stcmd2 != NULL )
{
fprintf( handl_o,"\n static COMMANDS sC___%i = ",num );
fprintf( handl_o,"{%d,\"%s\",",stcmd2->com_or_xcom, stcmd2->name);
if (stcmd2->mpatt !=NULL)
{
len_mpatt = strocpy( sLine, stcmd2->mpatt );
while( (ipos = pp_strAt( "\1", 1, sLine, len_mpatt) ) > 0 )
{
pp_Stuff ( "\\1", sLine+ipos-1, 2, 1, len_mpatt );
len_mpatt++;
}
fprintf(handl_o, "\"%s\",", sLine);
}
else
fprintf(handl_o, "NULL,");
if ( stcmd2->value !=NULL )
{
len_value = strocpy( sLine, stcmd2->value );
while( (ipos = pp_strAt( "\1", 1, sLine, len_value) ) > 0 )
{
pp_Stuff ( "\\1", sLine+ipos-1, 2, 1, len_value );
len_value++;
}
if( len_mpatt + len_value > 80 )
fprintf( handl_o, "\n " );
fprintf(handl_o, "\"%s\"",sLine);
}
else fprintf(handl_o, "NULL");
if( num == 1 )
fprintf(handl_o, ",NULL };");
else
fprintf(handl_o, ",&sC___%i };", num-1);
stcmd2 = stcmd2->last;
num++;
}
fprintf( handl_o,"\n COMMANDS *topTranslate = " );
if( num == 1 )
fprintf( handl_o,"NULL;" );
else
fprintf( handl_o," = &sT___%i;",num );
fclose(handl_o);
}
/*
* Function that adds specified path to the list of pathnames to search
*/
void AddSearchPath( char *szPath, PATHNAMES * *pSearchList )
{
PATHNAMES *pPath = *pSearchList;
if( pPath )
{
while( pPath->pNext )
pPath = pPath->pNext;
pPath->pNext = ( PATHNAMES * ) hb_xgrab( sizeof( PATHNAMES ) );
pPath = pPath->pNext;
}
else
{
*pSearchList =pPath =(PATHNAMES *)hb_xgrab( sizeof(PATHNAMES) );
}
pPath->pNext = NULL;
pPath->szPath = szPath;
}
void GenError( char* _szErrors[], char cPrefix, int iError, char * szError1, char * szError2 )
{
printf( "\r(%i) ", nline );
printf( "Error %c%i ", cPrefix, iError );
printf( _szErrors[ iError - 1 ], szError1, szError2 );
printf( "\n\n" );
exit( EXIT_FAILURE );
}
void GenWarning( char* _szWarnings[], char cPrefix, int iWarning, char * szWarning1, char * szWarning2)
{
if( _bWarnings && iWarning < WARN_ASSIGN_SUSPECT ) /* TODO: add switch to set level */
{
printf( "\r(%i) ", nline );
printf( "Warning %c%i ", cPrefix, iWarning );
printf( _szWarnings[ iWarning - 1 ], szWarning1, szWarning2 );
printf( "\n" );
}
}
#define IS_PATH_SEP( c ) ( strchr( OS_PATH_DELIMITER_LIST, ( c ) ) != NULL )
/* Split given filename into path, name and extension */
PHB_FNAME hb_fsFNameSplit( char * szFileName )
{
PHB_FNAME pFileName = ( PHB_FNAME ) hb_xgrab( sizeof( HB_FNAME ) );
int iLen = strlen( szFileName );
int iSlashPos;
int iDotPos;
int iPos;
pFileName->szPath =
pFileName->szName =
pFileName->szExtension = NULL;
iSlashPos = iLen - 1;
iPos = 0;
while( iSlashPos >= 0 && !IS_PATH_SEP( szFileName[ iSlashPos ] ) )
--iSlashPos;
if( iSlashPos == 0 )
{
/* root path -> \filename */
pFileName->szBuffer[ 0 ] = OS_PATH_DELIMITER;
pFileName->szBuffer[ 1 ] = '\0';
pFileName->szPath = pFileName->szBuffer;
iPos = 2; /* first free position after the slash */
}
else if( iSlashPos > 0 )
{
/* If we are after a drive letter let's keep the following backslash */
if( IS_PATH_SEP( ':' ) &&
( szFileName[ iSlashPos ] == ':' || szFileName[ iSlashPos - 1 ] == ':' ) )
{
/* path with separator -> d:\path\filename or d:path\filename */
memcpy( pFileName->szBuffer, szFileName, iSlashPos + 1 );
pFileName->szBuffer[ iSlashPos + 1 ] = '\0';
iPos = iSlashPos + 2; /* first free position after the slash */
}
else
{
/* path with separator -> path\filename */
memcpy( pFileName->szBuffer, szFileName, iSlashPos );
pFileName->szBuffer[ iSlashPos ] = '\0';
iPos = iSlashPos + 1; /* first free position after the slash */
}
pFileName->szPath = pFileName->szBuffer;
}
iDotPos = iLen - 1;
while( iDotPos > iSlashPos && szFileName[ iDotPos ] != '.' )
--iDotPos;
if( ( iDotPos - iSlashPos ) > 1 )
{
/* the dot was found
* and there is at least one character between a slash and a dot
*/
if( iDotPos == iLen - 1 )
{
/* the dot is the last character - use it as extension name */
pFileName->szExtension = pFileName->szBuffer + iPos;
pFileName->szBuffer[ iPos++ ] = '.';
pFileName->szBuffer[ iPos++ ] = '\0';
}
else
{
pFileName->szExtension = pFileName->szBuffer + iPos;
/* copy rest of the string with terminating ZERO character */
memcpy( pFileName->szExtension, szFileName + iDotPos + 1, iLen - iDotPos );
iPos += iLen - iDotPos;
}
}
else
/* there is no dot in the filename or it is '.filename' */
iDotPos = iLen;
if( ( iDotPos - iSlashPos - 1 ) > 0 )
{
pFileName->szName = pFileName->szBuffer + iPos;
memcpy( pFileName->szName, szFileName + iSlashPos + 1, iDotPos - iSlashPos - 1 );
pFileName->szName[ iDotPos - iSlashPos - 1 ] = '\0';
}
/* DEBUG
printf( "\nFilename: %s\n", szFileName );
printf( "\n szPath: %s\n", pFileName->szPath );
printf( "\n szName: %s\n", pFileName->szName );
printf( "\n szExt: %s\n", pFileName->szExtension );
*/
return pFileName;
}
/* This function joins path, name and extension into a string with a filename */
char * hb_fsFNameMerge( char * szFileName, PHB_FNAME pFileName )
{
if( pFileName->szPath && pFileName->szPath[ 0 ] )
{
/* we have not empty path specified */
int iLen = strlen( pFileName->szPath );
strcpy( szFileName, pFileName->szPath );
/* if the path is a root directory then we don't need to add path separator */
if( !( IS_PATH_SEP( pFileName->szPath[ 0 ] ) && pFileName->szPath[ 0 ] == '\0' ) )
{
/* add the path separator only in cases:
* when a name doesn't start with it
* when the path doesn't end with it
*/
if( !( IS_PATH_SEP( pFileName->szName[ 0 ] ) || IS_PATH_SEP( pFileName->szPath[ iLen-1 ] ) ) )
{
szFileName[ iLen++ ] = OS_PATH_DELIMITER;
szFileName[ iLen ] = '\0';
}
}
if( pFileName->szName )
strcpy( szFileName + iLen, pFileName->szName );
}
else
{
if( pFileName->szName )
strcpy( szFileName, pFileName->szName );
}
if( pFileName->szExtension )
{
int iLen = strlen( szFileName );
if( !( pFileName->szExtension[ 0 ] == '.' || szFileName[ iLen - 1 ] == '.') )
{
/* add extension separator only when extansion doesn't contain it */
szFileName[ iLen++ ] = '.';
szFileName[ iLen ] = '\0';
}
strcpy( szFileName + iLen, pFileName->szExtension );
}
/* DEBUG
printf( "\nMERGE:\n" );
printf( "\n szPath: %s\n", pFileName->szPath );
printf( "\n szName: %s\n", pFileName->szName );
printf( "\n szExt: %s\n", pFileName->szExtension );
printf( "\nFilename result: %s\n", szFileName );
*/
return szFileName;
}
void * hb_xgrab( ULONG ulSize ) /* allocates fixed memory, exits on failure */
{
void * pMem = malloc( ulSize );
if( ! pMem )
GenError( _szPErrors, 'P', ERR_PPMEMALLOC, NULL, NULL );
return pMem;
}
void * hb_xrealloc( void * pMem, ULONG ulSize ) /* reallocates memory */
{
void * pResult = realloc( pMem, ulSize );
if( ! pResult )
GenError( _szPErrors, 'P', ERR_PPMEMREALLOC, NULL, NULL );
return pResult;
}
void hb_xfree( void * pMem ) /* frees fixed memory */
{
if( pMem )
free( pMem );
else
GenError( _szPErrors, 'P', ERR_PPMEMFREE, NULL, NULL );
}