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harbour-core/harbour/source/macro/macrolex.c
Przemyslaw Czerpak ba6f4192ea 2009-04-02 22:01 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/include/hbexpra.c
    ! verify all expression POP operation for usage as LValue

  * harbour/include/hbexprb.c
    ! fixed possible GPF in unverified send context
    + added support for IIF() usage as LValue even if it cannot be
      reduced during [macro]compilation

  * harbour/source/macro/macro.yyc
  * harbour/source/macro/macro.y
  * harbour/source/macro/macrolex.c
    * removed support for some characters unsupported by Clipper in
      macro expressions like chr(10) as trailing expression character, f.e.:
         ? &("DATE()"+chr(10))

  * harbour/source/compiler/complex.c
    * formatting
2009-04-02 19:54:29 +00:00

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/*
* $Id$
*/
/*
* Harbour Project source code:
* small and MT safe lexer for macro compiler
*
* Copyright 2006 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.
*
*/
#define HB_MACRO_SUPPORT
#include "hbmacro.h"
#include "hbcomp.h"
#include "hbdate.h"
#include "macroy.h"
#define HB_LEX_ISFIRSTIDCHAR(c) ( ( (c) >= 'A' && (c) <= 'Z' ) || \
( (c) >= 'a' && (c) <= 'z' ) || \
(c) == '_' )
#define HB_LEX_ISDIGIT(c) ( (c) >= '0' && (c) <= '9' )
#define HB_LEX_ISHEXDIGIT(c) ( ( (c) >= '0' && (c) <= '9' ) || \
( (c) >= 'A' && (c) <= 'F' ) || \
( (c) >= 'a' && (c) <= 'f' ) )
#define HB_LEX_ISNEXTIDCHAR(c) ( HB_LEX_ISFIRSTIDCHAR(c) || \
HB_LEX_ISDIGIT(c) )
typedef struct _HB_MACRO_LEX
{
char * pString;
char * pDst;
ULONG ulLen;
ULONG ulSrc;
BOOL quote;
char pBuffer[ 2 ];
}
HB_MACRO_LEX, * PHB_MACRO_LEX;
BOOL hb_macroLexNew( HB_MACRO_PTR pMacro )
{
if( pMacro->length )
{
/*
* the total maximum size for parsed tokens delimited with ASCII NUL
* cannot be bigger then the size of macro string because only
* identifiers, strings, macrovars and macrotexts have to be returned
* as string and all these tokens have to be separated by some non
* value tokens or strings which will have not used delimiters
*/
pMacro->pLex = hb_xgrab( sizeof( HB_MACRO_LEX ) + pMacro->length );
( ( PHB_MACRO_LEX ) pMacro->pLex )->pString = pMacro->string;
( ( PHB_MACRO_LEX ) pMacro->pLex )->ulLen = pMacro->length;
( ( PHB_MACRO_LEX ) pMacro->pLex )->ulSrc = 0;
( ( PHB_MACRO_LEX ) pMacro->pLex )->quote = TRUE;
( ( PHB_MACRO_LEX ) pMacro->pLex )->pDst =
( ( PHB_MACRO_LEX ) pMacro->pLex )->pBuffer;
return TRUE;
}
return FALSE;
}
void hb_macroLexDelete( HB_MACRO_PTR pMacro )
{
if( pMacro->pLex )
{
hb_xfree( pMacro->pLex );
pMacro->pLex = NULL;
}
}
static void hb_lexSkipBlank( PHB_MACRO_LEX pLex )
{
while( pLex->ulSrc < pLex->ulLen &&
( pLex->pString[ pLex->ulSrc ] == ' ' ||
pLex->pString[ pLex->ulSrc ] == '\t' ) )
pLex->ulSrc++;
}
static void hb_lexIdentCopy( PHB_MACRO_LEX pLex )
{
while( pLex->ulSrc < pLex->ulLen )
{
char ch = pLex->pString[ pLex->ulSrc ];
if( ch >= 'a' && ch <= 'z' )
*pLex->pDst++ = ch - ( 'a' - 'A' );
else if( ( ch >= 'A' && ch <= 'Z' ) ||
( ch >= '0' && ch <= '9' ) || ch == '_' )
*pLex->pDst++ = ch;
else
break;
pLex->ulSrc++;
}
}
static int hb_lexTimestampGet( YYSTYPE *yylval_ptr, HB_MACRO_PTR pMacro,
PHB_MACRO_LEX pLex )
{
BOOL fOK = FALSE;
char * dst = pLex->pDst;
pLex->quote = FALSE;
while( pLex->ulSrc < pLex->ulLen )
{
char ch = pLex->pString[ pLex->ulSrc++ ];
if( ch == '"' )
{
fOK = TRUE;
break;
}
*dst++ = ch;
}
*dst = '\0';
if( !hb_timeStampStrGetDT( pLex->pDst,
&yylval_ptr->valTimeStamp.date,
&yylval_ptr->valTimeStamp.time ) )
fOK = FALSE;
if( !fOK )
hb_macroError( EG_SYNTAX, pMacro );
return TIMESTAMP;
}
static int hb_lexDateGet( YYSTYPE *yylval_ptr, HB_MACRO_PTR pMacro,
PHB_MACRO_LEX pLex )
{
BOOL fOK = FALSE;
char * dst = pLex->pDst;
int iYear, iMonth, iDay;
pLex->quote = FALSE;
while( pLex->ulSrc < pLex->ulLen )
{
char ch = pLex->pString[ pLex->ulSrc++ ];
if( ch == '"' )
{
fOK = TRUE;
break;
}
*dst++ = ch;
}
*dst = '\0';
if( fOK && hb_timeStampStrGet( pLex->pDst, &iYear, &iMonth, &iDay, NULL, NULL, NULL, NULL ) )
{
yylval_ptr->valLong.lNumber = hb_dateEncode( iYear, iMonth, iDay );
}
else
{
yylval_ptr->valLong.lNumber = 0;
hb_macroError( EG_SYNTAX, pMacro );
}
return NUM_DATE;
}
static int hb_lexStringCopy( YYSTYPE *yylval_ptr, HB_MACRO_PTR pMacro,
PHB_MACRO_LEX pLex, char cDelim )
{
pLex->quote = FALSE;
yylval_ptr->valChar.string = pLex->pDst;
while( pLex->ulSrc < pLex->ulLen )
{
char ch = pLex->pString[ pLex->ulSrc++ ];
if( ch == cDelim )
{
yylval_ptr->valChar.length = pLex->pDst - yylval_ptr->valChar.string;
*pLex->pDst++ = '\0';
return LITERAL;
}
*pLex->pDst++ = ch;
}
yylval_ptr->valChar.length = pLex->pDst - yylval_ptr->valChar.string;
*pLex->pDst++ = '\0';
hb_macroError( EG_SYNTAX, pMacro );
return LITERAL;
}
static int hb_lexStringExtCopy( YYSTYPE *yylval_ptr, HB_MACRO_PTR pMacro,
PHB_MACRO_LEX pLex )
{
ULONG ulLen;
pLex->quote = FALSE;
yylval_ptr->valChar.string = pLex->pDst;
while( pLex->ulSrc < pLex->ulLen )
{
char ch = pLex->pString[ pLex->ulSrc++ ];
if( ch == '\\' )
{
if( pLex->ulSrc < pLex->ulLen )
{
*pLex->pDst++ = ch;
ch = pLex->pString[ pLex->ulSrc++ ];
}
}
else if( ch == '"' )
{
ulLen = pLex->pDst - yylval_ptr->valChar.string;
*pLex->pDst++ = '\0';
hb_strRemEscSeq( ( char * ) yylval_ptr->valChar.string, &ulLen );
yylval_ptr->valChar.length = ( int ) ulLen;
return LITERAL;
}
*pLex->pDst++ = ch;
}
ulLen = pLex->pDst - yylval_ptr->valChar.string;
*pLex->pDst++ = '\0';
hb_strRemEscSeq( ( char * ) yylval_ptr->valChar.string, &ulLen );
yylval_ptr->valChar.length = ( int ) ulLen;
hb_macroError( EG_SYNTAX, pMacro );
return LITERAL;
}
static int hb_lexNumConv( YYSTYPE *yylval_ptr, PHB_MACRO_LEX pLex, ULONG ulLen )
{
HB_LONG lNumber;
double dNumber;
int iDec, iWidth;
if( hb_compStrToNum( pLex->pString + pLex->ulSrc, ulLen,
&lNumber, &dNumber, &iDec, &iWidth ) )
{
yylval_ptr->valDouble.dNumber = dNumber;
yylval_ptr->valDouble.bDec = iDec;
yylval_ptr->valDouble.bWidth = iWidth;
pLex->ulSrc += ulLen;
return NUM_DOUBLE;
}
else
{
yylval_ptr->valLong.lNumber = lNumber;
yylval_ptr->valLong.bWidth = iWidth;
pLex->ulSrc += ulLen;
return NUM_LONG;
}
}
int hb_macrolex( YYSTYPE *yylval_ptr, HB_MACRO_PTR pMacro )
{
PHB_MACRO_LEX pLex = ( PHB_MACRO_LEX ) pMacro->pLex;
while( pLex->ulSrc < pLex->ulLen )
{
unsigned char ch = ( unsigned char ) pLex->pString[ pLex->ulSrc++ ];
switch( ch )
{
case ' ':
case '\t':
break;
case '$':
case ',':
case '|':
case '@':
case '(':
case '{':
pLex->quote = TRUE;
return ch;
case ')':
case '}':
case ']':
pLex->quote = FALSE;
return ch;
case '#':
pLex->quote = TRUE;
return NE1;
case '!':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return NE2;
}
return NOT;
case '<':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '>' )
{
pLex->ulSrc++;
return NE2;
}
else if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return LE;
}
return '<';
case '>':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return GE;
}
return '>';
case '=':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return EQ;
}
else if( pLex->pString[ pLex->ulSrc ] == '>' && HB_SUPPORT_HARBOUR )
{
pLex->ulSrc++;
return HASHOP;
}
return '=';
case '+':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '+' )
{
pLex->ulSrc++;
return INC;
}
else if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return PLUSEQ;
}
return '+';
case '-':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '-' )
{
pLex->ulSrc++;
return DEC;
}
else if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return MINUSEQ;
}
else if( pLex->pString[ pLex->ulSrc ] == '>' )
{
pLex->ulSrc++;
return ALIASOP;
}
return '-';
case '*':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '*' )
{
pLex->ulSrc++;
if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return EXPEQ;
}
return POWER;
}
else if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return MULTEQ;
}
return '*';
case '/':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return DIVEQ;
}
return '/';
case '%':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return MODEQ;
}
return '%';
case '^':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return EXPEQ;
}
return POWER;
case ':':
pLex->quote = TRUE;
if( pLex->pString[ pLex->ulSrc ] == '=' )
{
pLex->ulSrc++;
return INASSIGN;
}
else if( pLex->pString[ pLex->ulSrc ] == ':' )
{
yylval_ptr->string = "SELF";
return IDENTIFIER;
}
return ':';
case '.':
pLex->quote = TRUE;
if( pLex->ulSrc < pLex->ulLen &&
HB_LEX_ISDIGIT( pLex->pString[ pLex->ulSrc ] ) )
{
ULONG ul = pLex->ulSrc;
while( ++ul < pLex->ulLen &&
HB_LEX_ISDIGIT( pLex->pString[ ul ] ) ) {};
ul -= --pLex->ulSrc;
return hb_lexNumConv( yylval_ptr, pLex, ul );
}
if( pLex->ulLen - pLex->ulSrc >= 4 &&
pLex->pString[ pLex->ulSrc + 3 ] == '.' )
{
if( ( pLex->pString[ pLex->ulSrc + 0 ] | ('a' - 'A') ) == 'a' &&
( pLex->pString[ pLex->ulSrc + 1 ] | ('a' - 'A') ) == 'n' &&
( pLex->pString[ pLex->ulSrc + 2 ] | ('a' - 'A') ) == 'd' )
{
pLex->ulSrc += 4;
return AND;
}
if( ( pLex->pString[ pLex->ulSrc + 0 ] | ('a' - 'A') ) == 'n' &&
( pLex->pString[ pLex->ulSrc + 1 ] | ('a' - 'A') ) == 'o' &&
( pLex->pString[ pLex->ulSrc + 2 ] | ('a' - 'A') ) == 't' )
{
pLex->ulSrc += 4;
return NOT;
}
}
if( pLex->ulLen - pLex->ulSrc >= 3 &&
pLex->pString[ pLex->ulSrc + 2 ] == '.' )
{
if( ( pLex->pString[ pLex->ulSrc + 0 ] | ('a' - 'A') ) == 'o' &&
( pLex->pString[ pLex->ulSrc + 1 ] | ('a' - 'A') ) == 'r' )
{
pLex->ulSrc += 3;
return OR;
}
}
if( pLex->ulLen - pLex->ulSrc >= 2 &&
pLex->pString[ pLex->ulSrc + 1 ] == '.' )
{
if( ( pLex->pString[ pLex->ulSrc ] | ('a' - 'A') ) == 't' ||
( pLex->pString[ pLex->ulSrc ] | ('a' - 'A') ) == 'y' )
{
pLex->quote = FALSE;
pLex->ulSrc += 2;
return TRUEVALUE;
}
if( ( pLex->pString[ pLex->ulSrc ] | ('a' - 'A') ) == 'f' ||
( pLex->pString[ pLex->ulSrc ] | ('a' - 'A') ) == 'n' )
{
pLex->quote = FALSE;
pLex->ulSrc += 2;
return FALSEVALUE;
}
if( pLex->pString[ pLex->ulSrc ] == '.' )
{
pLex->ulSrc += 2;
return EPSILON;
}
}
return '.';
case '[':
if( pLex->quote )
return hb_lexStringCopy( yylval_ptr, pMacro, pLex, ']' );
pLex->quote = TRUE;
return '[';
case '`':
case '\'':
return hb_lexStringCopy( yylval_ptr, pMacro, pLex, '\'' );
case '"':
return hb_lexStringCopy( yylval_ptr, pMacro, pLex, '"' );
case '&':
if( pLex->ulSrc < pLex->ulLen )
{
if( HB_LEX_ISFIRSTIDCHAR( pLex->pString[ pLex->ulSrc ] ) )
{
/* [&<keyword>[.[<nextidchars>]]]+ */
int iParts = 0;
pLex->quote = FALSE;
yylval_ptr->string = pLex->pDst;
pLex->ulSrc--;
do
{
++iParts;
*pLex->pDst++ = '&';
pLex->ulSrc++;
hb_lexIdentCopy( pLex );
if( pLex->pString[ pLex->ulSrc ] == '.' )
{
++iParts;
*pLex->pDst++ = '.';
pLex->ulSrc++;
hb_lexIdentCopy( pLex );
}
}
while( pLex->ulLen - pLex->ulSrc > 1 &&
pLex->pString[ pLex->ulSrc ] == '&' &&
HB_LEX_ISFIRSTIDCHAR( pLex->pString[ pLex->ulSrc + 1 ] ) );
if( iParts == 2 && *( pLex->pDst - 1 ) == '.' )
{
pLex->pDst--;
iParts = 1;
}
*pLex->pDst++ = '\0';
if( iParts == 1 )
{
yylval_ptr->string++;
if( pLex->pDst - yylval_ptr->string > HB_SYMBOL_NAME_LEN + 1 )
( ( char * ) yylval_ptr->string )[ HB_SYMBOL_NAME_LEN ] = '\0';
return MACROVAR;
}
return MACROTEXT;
}
else if( pLex->pString[ pLex->ulSrc ] == '\'' ||
pLex->pString[ pLex->ulSrc ] == '"' ||
pLex->pString[ pLex->ulSrc ] == '[' )
hb_macroError( EG_SYNTAX, pMacro );
}
pLex->quote = TRUE;
return '&';
default:
if( HB_LEX_ISDIGIT( ch ) )
{
ULONG ul = pLex->ulSrc;
pLex->quote = FALSE;
if( ch == '0' && ul < pLex->ulLen )
{
if( pLex->pString[ ul ] == 'd' || pLex->pString[ ul ] == 'D' )
{
while( ++ul < pLex->ulLen &&
HB_LEX_ISDIGIT( pLex->pString[ ul ] ) ) {};
if( ul - pLex->ulSrc == 9 )
{
int year, month, day;
hb_dateStrGet( pLex->pString + pLex->ulSrc + 1,
&year, &month, &day );
yylval_ptr->valLong.lNumber =
hb_dateEncode( year, month, day );
pLex->ulSrc = ul;
if( yylval_ptr->valLong.lNumber == 0 &&
( year != 0 || month != 0 || day != 0 ) )
{
hb_macroError( EG_SYNTAX, pMacro );
}
return NUM_DATE;
}
else if( ul - pLex->ulSrc == 2 &&
pLex->pString[ pLex->ulSrc + 1 ] == '0' )
{
yylval_ptr->valLong.lNumber = 0;
return NUM_DATE;
}
ul = pLex->ulSrc;
}
else if( pLex->pString[ ul ] == 'x' ||
pLex->pString[ ul ] == 'X' )
{
while( ++ul < pLex->ulLen &&
HB_LEX_ISHEXDIGIT( pLex->pString[ ul ] ) ) {};
if( ul == pLex->ulSrc + 1 )
--ul;
}
else
{
while( ul < pLex->ulLen &&
HB_LEX_ISDIGIT( pLex->pString[ ul ] ) )
++ul;
if( pLex->ulLen - ul > 1 && pLex->pString[ ul ] == '.' &&
HB_LEX_ISDIGIT( pLex->pString[ ul + 1 ] ) )
{
while( ++ul < pLex->ulLen &&
HB_LEX_ISDIGIT( pLex->pString[ ul ] ) ) {};
}
}
}
else
{
while( ul < pLex->ulLen &&
HB_LEX_ISDIGIT( pLex->pString[ ul ] ) )
++ul;
if( pLex->ulLen - ul > 1 && pLex->pString[ ul ] == '.' &&
HB_LEX_ISDIGIT( pLex->pString[ ul + 1 ] ) )
{
while( ++ul < pLex->ulLen &&
HB_LEX_ISDIGIT( pLex->pString[ ul ] ) ) {};
}
}
ul -= --pLex->ulSrc;
return hb_lexNumConv( yylval_ptr, pLex, ul );
}
else if( HB_LEX_ISFIRSTIDCHAR( ch ) )
{
ULONG ulLen;
pLex->quote = FALSE;
yylval_ptr->string = pLex->pDst;
*pLex->pDst++ = ch - ( ( ch >= 'a' && ch <= 'z' ) ? 'a' - 'A' : 0 );
hb_lexIdentCopy( pLex );
if( pLex->ulLen - pLex->ulSrc > 1 &&
pLex->pString[ pLex->ulSrc ] == '&' &&
HB_LEX_ISFIRSTIDCHAR( pLex->pString[ pLex->ulSrc + 1 ] ) )
{
/* [<keyword>][&<keyword>[.[<nextidchars>]]]+ */
do
{
*pLex->pDst++ = '&';
pLex->ulSrc++;
hb_lexIdentCopy( pLex );
if( pLex->pString[ pLex->ulSrc ] == '.' )
{
*pLex->pDst++ = '.';
pLex->ulSrc++;
hb_lexIdentCopy( pLex );
}
}
while( pLex->ulLen - pLex->ulSrc > 1 &&
pLex->pString[ pLex->ulSrc ] == '&' &&
HB_LEX_ISFIRSTIDCHAR( pLex->pString[ pLex->ulSrc + 1 ] ) );
*pLex->pDst++ = '\0';
return MACROTEXT;
}
ulLen = pLex->pDst - yylval_ptr->string;
*pLex->pDst++ = '\0';
if( ulLen == 1 )
{
if( pLex->ulLen > pLex->ulSrc &&
pLex->pString[ pLex->ulSrc ] == '"' )
{
switch( yylval_ptr->string[ 0 ] )
{
case 'E':
pLex->ulSrc++;
return hb_lexStringExtCopy( yylval_ptr, pMacro, pLex );
case 'T':
pLex->ulSrc++;
return hb_lexTimestampGet( yylval_ptr, pMacro, pLex );
case 'D':
pLex->ulSrc++;
return hb_lexDateGet( yylval_ptr, pMacro, pLex );
}
}
}
else if( ulLen == 2 )
{
if( yylval_ptr->string[ 0 ] == 'I' &&
yylval_ptr->string[ 1 ] == 'F' )
{
hb_lexSkipBlank( pLex );
if( pLex->ulSrc < pLex->ulLen &&
pLex->pString[ pLex->ulSrc ] == '(' )
return IIF;
}
}
else if( ulLen == 3 )
{
if( yylval_ptr->string[ 0 ] == 'I' &&
yylval_ptr->string[ 1 ] == 'I' &&
yylval_ptr->string[ 2 ] == 'F' )
{
hb_lexSkipBlank( pLex );
if( pLex->ulSrc < pLex->ulLen &&
pLex->pString[ pLex->ulSrc ] == '(' )
return IIF;
}
else if( yylval_ptr->string[ 0 ] == 'N' &&
yylval_ptr->string[ 1 ] == 'I' &&
yylval_ptr->string[ 2 ] == 'L' )
return NIL;
}
else /* ulLen >= 4 */
{
switch( yylval_ptr->string[ 0 ] )
{
case '_':
if( ulLen <= 6 && memcmp( "FIELD", yylval_ptr->string + 1,
ulLen - 1 ) == 0 )
{
hb_lexSkipBlank( pLex );
if( pLex->ulSrc + 1 < pLex->ulLen &&
pLex->pString[ pLex->ulSrc ] == '-' &&
pLex->pString[ pLex->ulSrc + 1 ] == '>' )
return FIELD;
}
break;
case 'F':
if( ulLen <= 5 && memcmp( "IELD", yylval_ptr->string + 1,
ulLen - 1 ) == 0 )
{
hb_lexSkipBlank( pLex );
if( pLex->ulSrc + 1 < pLex->ulLen &&
pLex->pString[ pLex->ulSrc ] == '-' &&
pLex->pString[ pLex->ulSrc + 1 ] == '>' )
return FIELD;
}
break;
case 'Q':
if( ulLen == 5 && memcmp( "SELF", yylval_ptr->string + 1,
4 ) == 0 )
{
hb_lexSkipBlank( pLex );
if( pLex->ulSrc < pLex->ulLen &&
pLex->pString[ pLex->ulSrc ] == '(' )
{
ULONG ul = pLex->ulSrc;
while( ++ul < pLex->ulLen )
{
if( pLex->pString[ ul ] == ')' )
{
pLex->ulSrc = ul + 1;
return SELF;
}
else if( pLex->pString[ ul ] != ' ' &&
pLex->pString[ ul ] != '\t' )
break;
}
}
}
break;
}
if( pLex->pDst - yylval_ptr->string > HB_SYMBOL_NAME_LEN + 1 )
( ( char * ) yylval_ptr->string )[ HB_SYMBOL_NAME_LEN ] = '\0';
}
return IDENTIFIER;
}
return ch;
}
}
return 0;
}
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