int ring_parser_stmt ( Parser *pParser )
{
int x,nMark1,nMark2,nMark3,nStart,nEnd,nPerformanceLocations ;
String *pString ;
List *pMark,*pMark2,*pMark3,*pList2 ;
double nNum1 ;
char cStr[50] ;
nPerformanceLocations = 0 ;
char cFileName[200] ;
assert(pParser != NULL);
/* Statement --> Load Literal */
if ( ring_parser_iskeyword(pParser,K_LOAD) ) {
ring_parser_nexttoken(pParser);
if ( ring_parser_isliteral(pParser) ) {
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_FILENAME);
ring_parser_icg_newoperand(pParser,pParser->TokenText);
ring_parser_icg_newoperation(pParser,ICO_BLOCKFLAG);
pMark = ring_parser_icg_getactiveoperation(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Load' Literal");
#endif
/* No package at the start of the file */
pParser->ClassesMap = pParser->pRingState->pRingClassesMap ;
strcpy(cFileName,pParser->TokenText);
if ( ring_fexists(pParser->TokenText) == 0 ) {
ring_exefolder(cFileName);
strcat(cFileName,pParser->TokenText);
if ( ring_fexists(cFileName) == 0 ) {
strcpy(cFileName,pParser->TokenText);
}
}
ring_scanner_readfile(cFileName,pParser->pRingState);
/*
** Generate Code
** Return NULL
*/
ring_parser_icg_newoperation(pParser,ICO_RETNULL);
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark1);
/* Set Active File */
ring_parser_icg_newoperation(pParser,ICO_FILENAME);
ring_parser_icg_newoperand(pParser,ring_list_getstring(pParser->pRingState->pRingFilesStack,ring_list_getsize(pParser->pRingState->pRingFilesStack)));
ring_parser_nexttoken(pParser);
return 1 ;
}
return 0 ;
}
/* Statement --> See Expr */
if ( ring_parser_iskeyword(pParser,K_SEE) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_FUNCEXE);
x = ring_parser_expr(pParser);
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_PRINT);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'See' Expr");
#endif
return x ;
}
/* Statement --> Give Identifier */
if ( ring_parser_iskeyword(pParser,K_GIVE) ) {
ring_parser_nexttoken(pParser);
if ( ring_parser_isidentifier(pParser) ) {
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_LOADADDRESS);
ring_parser_icg_newoperand(pParser,pParser->TokenText);
ring_parser_nexttoken(pParser);
x = ring_parser_mixer(pParser);
if ( x == 0 ) {
return 0 ;
}
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_GIVE);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Give' Identifier|ListItem|Object.Attribute");
#endif
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_VARNAME);
return 0 ;
}
}
/* Statement --> For Identifier = Expr to Expr {Statement} Next | For Identifier in Expr {Statemen */
if ( ring_parser_iskeyword(pParser,K_FOR) ) {
ring_parser_nexttoken(pParser);
if ( ring_parser_isidentifier(pParser) ) {
pString = ring_string_new(pParser->TokenText);
ring_parser_nexttoken(pParser);
if ( ring_parser_isoperator(pParser,"=") ) {
/*
** Generate Code
** Mark for Exit command to go to outside the loop
*/
ring_parser_icg_newoperation(pParser,ICO_EXITMARK);
pMark3 = ring_parser_icg_getactiveoperation(pParser);
ring_parser_icg_newoperation(pParser,ICO_LOADAFIRST);
ring_parser_icg_newoperand(pParser,ring_string_get(pString));
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
/*
** Generate Code
** Before Equal ( = ) not += , -= ,... etc
*/
ring_parser_icg_newoperation(pParser,ICO_BEFOREEQUAL);
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperation(pParser,ICO_ASSIGNMENT);
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_newoperation(pParser,ICO_LOADAPUSHV);
ring_parser_icg_newoperand(pParser,ring_string_get(pString));
if ( ring_parser_iskeyword(pParser,K_TO) ) {
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
if ( (ring_parser_icg_getlastoperation(pParser) == ICO_PUSHN) && (ring_parser_icg_newlabel(pParser) == (nMark1+2)) ) {
/*
** We check nMark2+2 to avoid executing next instructions when we have expr
** for example for x = 1 to 10+5
*/
nNum1 = ring_list_getdouble(pParser->ActiveGenCodeList,2) ;
ring_parser_icg_deletelastoperation(pParser);
ring_parser_icg_setlastoperation(pParser,ICO_JUMPVARLENUM);
ring_parser_icg_newoperanddouble(pParser,nNum1);
/* Add Locations Needed for Instruction change for performance */
nPerformanceLocations = 1 ;
} else {
ring_parser_icg_newoperation(pParser,ICO_JUMPFOR);
}
pMark = ring_parser_icg_getactiveoperation(pParser);
/* Step <expr> */
x = ring_parser_step(pParser,&nMark1);
if ( x == 0 ) {
ring_string_delete(pString);
return 0 ;
}
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'For' Identifier '=' Expr to Expr ['step' Expr]");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_NEXT) ) {
/* Generate Code */
nMark3 = ring_parser_icg_newlabel(pParser);
/* Increment Jump */
ring_parser_icg_newoperation(pParser,ICO_INCJUMP);
ring_parser_icg_newoperand(pParser,ring_string_get(pString));
ring_parser_icg_newoperandint(pParser,nMark1);
/* Add Locations needed for instruction change for performance */
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperandint(pParser,0);
nMark2 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark2);
/* Performance Locations */
if ( nPerformanceLocations ) {
/* Add Locations Needed for Instruction JUMPVARLENUM change for performance */
ring_parser_icg_addoperandint(pMark,0);
ring_parser_icg_addoperandint(pMark,0);
}
/* Set Exit Mark */
ring_parser_icg_addoperandint(pMark3,nMark2);
/* Set Loop Mark */
ring_parser_icg_addoperandint(pMark3,nMark3);
/* End Loop (Remove Exit Mark) */
ring_parser_icg_newoperation(pParser,ICO_POPEXITMARK);
/* POP Step */
ring_parser_icg_newoperation(pParser,ICO_POPSTEP);
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Next --> 'Next'");
#endif
ring_string_delete(pString);
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_NEXT);
}
}
}
}
}
else if ( ring_parser_iskeyword(pParser,K_IN) ) {
/* Generate Code */
sprintf( cStr , "n_sys_var_%d" , ring_parser_icg_instructionscount(pParser) ) ;
/* Mark for Exit command to go to outside the loop */
ring_parser_icg_newoperation(pParser,ICO_EXITMARK);
pMark3 = ring_parser_icg_getactiveoperation(pParser);
ring_parser_icg_newoperation(pParser,ICO_LOADADDRESS);
ring_parser_icg_newoperand(pParser,cStr);
ring_parser_icg_newoperation(pParser,ICO_PUSHN);
ring_parser_icg_newoperanddouble(pParser,1.0);
/* Before Equal ( = ) not += , -= ,... etc */
ring_parser_icg_newoperation(pParser,ICO_BEFOREEQUAL);
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperation(pParser,ICO_ASSIGNMENT);
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_newoperation(pParser,ICO_LOADAPUSHV);
ring_parser_icg_newoperand(pParser,cStr);
ring_parser_icg_newoperation(pParser,ICO_LOADFUNC);
ring_parser_icg_newoperand(pParser,"len");
nStart = ring_parser_icg_instructionscount(pParser) + 1 ;
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
nEnd = ring_parser_icg_instructionscount(pParser) ;
/* Note (nEnd-1) , -1 to remove instruction PushV (avoid error with for x in string) */
if ( ring_parser_icg_getlastoperation(pParser) == ICO_PUSHV ) {
nEnd-- ;
}
ring_parser_icg_newoperation(pParser,ICO_CALL);
/* Generate 0 For Operator OverLoading */
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperation(pParser,ICO_JUMPFOR);
pMark = ring_parser_icg_getactiveoperation(pParser);
ring_parser_icg_newoperation(pParser,ICO_LOADAFIRST);
ring_parser_icg_newoperand(pParser,ring_string_get(pString));
ring_parser_icg_duplicate(pParser,nStart,nEnd);
ring_parser_icg_newoperation(pParser,ICO_LOADAPUSHV);
ring_parser_icg_newoperand(pParser,cStr);
ring_parser_icg_newoperation(pParser,ICO_LOADINDEXADDRESS);
/* Generate 0 For Operator OverLoading */
ring_parser_icg_newoperandint(pParser,0);
/* Item by reference */
ring_parser_icg_newoperation(pParser,ICO_SETREFERENCE);
/* Step <expr> */
x = ring_parser_step(pParser,&nMark1);
if ( x == 0 ) {
ring_string_delete(pString);
return 0 ;
}
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'For' Identifier 'in' Expr ['step' Expr]");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_NEXT) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
nMark3 = ring_parser_icg_newlabel(pParser);
/* Increment Jump */
ring_parser_icg_newoperation(pParser,ICO_INCJUMP);
ring_parser_icg_newoperand(pParser,cStr);
ring_parser_icg_newoperandint(pParser,nMark1);
/* Add Locations needed for instruction change for performance */
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperandint(pParser,0);
nMark2 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark2);
/* Set Exit Mark */
ring_parser_icg_addoperandint(pMark3,nMark2);
/* Set Loop Mark */
ring_parser_icg_addoperandint(pMark3,nMark3);
/* End Loop (Remove Exit Mark) */
ring_parser_icg_newoperation(pParser,ICO_POPEXITMARK);
/* POP Step */
ring_parser_icg_newoperation(pParser,ICO_POPSTEP);
/* Remove Reference Value */
ring_parser_icg_newoperation(pParser,ICO_LOADAFIRST);
ring_parser_icg_newoperand(pParser,ring_string_get(pString));
ring_parser_icg_newoperation(pParser,ICO_KILLREFERENCE);
ring_parser_icg_newoperation(pParser,ICO_PUSHN);
ring_parser_icg_newoperanddouble(pParser,1.0);
/* Before Equal ( = ) not += , -= ,... etc */
ring_parser_icg_newoperation(pParser,ICO_BEFOREEQUAL);
ring_parser_icg_newoperandint(pParser,0);
ring_parser_icg_newoperation(pParser,ICO_ASSIGNMENT);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Next --> 'Next'");
#endif
ring_string_delete(pString);
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_NEXT);
}
}
}
ring_string_delete(pString);
}
return 0 ;
}
/* Statement --> IF Expr Statements OK */
if ( ring_parser_iskeyword(pParser,K_IF) ) {
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/*
** First Condition
** Generate Code
*/
ring_parser_icg_newoperation(pParser,ICO_JUMPZERO);
pMark = ring_parser_icg_getactiveoperation(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'If' Expr {Statement} { But } [Else] Ok");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
/* Generate Code */
pList2 = ring_list_new(0);
ring_parser_icg_newoperation(pParser,ICO_JUMP);
ring_list_addpointer(pList2,ring_parser_icg_getactiveoperation(pParser));
/* { 'But' Statements } 'Else' Statements */
while ( ring_parser_iskeyword(pParser,K_BUT) ) {
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark1);
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_JUMPZERO);
pMark = ring_parser_icg_getactiveoperation(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : But --> 'But' Expr {Statement}");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_JUMP);
ring_list_addpointer(pList2,ring_parser_icg_getactiveoperation(pParser));
}
}
if ( ring_parser_iskeyword(pParser,K_ELSE) ) {
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark1);
pMark = NULL ;
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Else --> 'Else' {Statement} ");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
}
if ( ring_parser_iskeyword(pParser,K_OK) ) {
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
if ( pMark != NULL ) {
ring_parser_icg_addoperandint(pMark,nMark1);
}
if ( ring_list_getsize(pList2) > 0 ) {
for ( x = 1 ; x <= ring_list_getsize(pList2) ; x++ ) {
ring_parser_icg_addoperandint(((List *) ring_list_getpointer(pList2,x)),nMark1);
}
}
ring_list_delete(pList2);
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Ok --> 'OK'");
#endif
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_OK);
ring_list_delete(pList2);
}
}
return 0 ;
}
/* Statement --> WHILE Expr Statements END */
if ( ring_parser_iskeyword(pParser,K_WHILE) ) {
/*
** Generate Code
** Mark for Exit command to go to outsize the loop
*/
ring_parser_icg_newoperation(pParser,ICO_EXITMARK);
pMark3 = ring_parser_icg_getactiveoperation(pParser);
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_JUMPZERO);
pMark = ring_parser_icg_getactiveoperation(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'While' Expr {Statement} End");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_END) ) {
/* Generate Code */
nMark3 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_newoperation(pParser,ICO_JUMP);
ring_parser_icg_newoperandint(pParser,nMark1);
nMark2 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark2);
/* Set Exit Mark */
ring_parser_icg_addoperandint(pMark3,nMark2);
/* Set Loop Mark */
ring_parser_icg_addoperandint(pMark3,nMark3);
/* End Loop (Remove Exit Mark) */
ring_parser_icg_newoperation(pParser,ICO_POPEXITMARK);
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : End --> 'End'");
#endif
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_END);
}
}
return 0 ;
}
/* Statement --> DO Statements AGAIN Expr */
if ( ring_parser_iskeyword(pParser,K_DO) ) {
/*
** Generate Code
** Mark for Exit command to go to outsize the loop
*/
ring_parser_icg_newoperation(pParser,ICO_EXITMARK);
pMark3 = ring_parser_icg_getactiveoperation(pParser);
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Do' {Statement} Again");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_AGAIN) ) {
/* Generate Code */
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
/* Generate Code (Test Condition) */
ring_parser_icg_newoperation(pParser,ICO_JUMPZERO);
pMark = ring_parser_icg_getactiveoperation(pParser);
/* Generate Code */
nMark3 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_newoperation(pParser,ICO_JUMP);
ring_parser_icg_newoperandint(pParser,nMark1);
nMark2 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark2);
/* Set Exit Mark */
ring_parser_icg_addoperandint(pMark3,nMark2);
/* Set Loop Mark */
ring_parser_icg_addoperandint(pMark3,nMark3);
/* End Loop (Remove Exit Mark) */
ring_parser_icg_newoperation(pParser,ICO_POPEXITMARK);
pParser->nAssignmentFlag = 1 ;
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Again --> 'Again' Expr");
#endif
return 1 ;
}
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_AGAIN);
}
return 0 ;
}
/* Statement --> Return Expr */
if ( ring_parser_iskeyword(pParser,K_RETURN) ) {
ring_parser_nexttoken(pParser);
x = 1 ;
if ( ring_parser_isendline(pParser) == 0 ) {
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_FUNCEXE);
pParser->nAssignmentFlag = 0 ;
x = ring_parser_expr(pParser);
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_ENDFUNCEXE);
ring_parser_icg_newoperation(pParser,ICO_RETURN);
} else {
/*
** Generate Code
** Return NULL
*/
ring_parser_icg_newoperation(pParser,ICO_RETNULL);
}
#if RING_PARSERTRACE
if ( x == 1 ) {
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Return'");
}
#endif
return x ;
}
/* Statement --> Try {Statement} Catch {Statement} Done */
if ( ring_parser_iskeyword(pParser,K_TRY) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_TRY);
pMark = ring_parser_icg_getactiveoperation(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Try' {Statement} Catch Done");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_CATCH) ) {
ring_parser_nexttoken(pParser);
/*
** Generate Code
** Jump from end of try block to label after done
*/
ring_parser_icg_newoperation(pParser,ICO_JUMP);
pMark2 = ring_parser_icg_getactiveoperation(pParser);
nMark1 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark,nMark1);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Catch --> 'Catch' {Statement}");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
if ( ring_parser_iskeyword(pParser,K_DONE) ) {
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Done --> 'Done'");
#endif
ring_parser_nexttoken(pParser);
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_JUMP);
pMark3 = ring_parser_icg_getactiveoperation(pParser);
nMark2 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark2,nMark2);
ring_parser_icg_newoperation(pParser,ICO_DONE);
nMark3 = ring_parser_icg_newlabel(pParser);
ring_parser_icg_addoperandint(pMark3,nMark3);
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_NODONE);
}
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_NOCATCH);
}
}
/* Statement --> Bye (Close the Program) */
if ( ring_parser_iskeyword(pParser,K_BYE) ) {
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Bye' ");
#endif
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_BYE);
return 1 ;
}
/* Statement --> Exit (Go to outside the loop) */
if ( ring_parser_iskeyword(pParser,K_EXIT) ) {
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Exit' ");
#endif
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_EXIT);
/* Check Number (Exit from more than one loop) */
if ( ring_parser_isnumber(pParser) ) {
ring_parser_icg_newoperanddouble(pParser,atof(pParser->TokenText));
ring_parser_nexttoken(pParser);
}
return 1 ;
}
/* Statement --> Loop (Continue) */
if ( ring_parser_iskeyword(pParser,K_LOOP) ) {
ring_parser_nexttoken(pParser);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Loop'");
#endif
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_LOOP);
/* Check Number (Continue from more than one loop) */
if ( ring_parser_isnumber(pParser) ) {
ring_parser_icg_newoperanddouble(pParser,atof(pParser->TokenText));
ring_parser_nexttoken(pParser);
}
return 1 ;
}
/* Statement --> Switch Expr { ON Expr {Statement} } OFF */
if ( ring_parser_iskeyword(pParser,K_SWITCH) ) {
ring_parser_nexttoken(pParser);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> 'Switch' Expr {ON} [Other] OFF");
#endif
RING_PARSER_IGNORENEWLINE ;
/* ON Statements */
pList2 = ring_list_new(0);
pMark = NULL ;
while ( ring_parser_iskeyword(pParser,K_ON) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
if ( pMark != NULL ) {
ring_parser_icg_addoperandint(pMark,nMark1);
}
ring_parser_icg_newoperation(pParser,ICO_DUPLICATE);
pParser->nAssignmentFlag = 0 ;
if ( ring_parser_expr(pParser) ) {
pParser->nAssignmentFlag = 1 ;
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_EQUAL);
ring_parser_icg_newoperation(pParser,ICO_JUMPZERO);
pMark = ring_parser_icg_getactiveoperation(pParser);
ring_parser_icg_newoperation(pParser,ICO_FREESTACK);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : ON --> 'on' Expr {Statement}");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
/* Generate Code */
ring_parser_icg_newoperation(pParser,ICO_JUMP);
ring_list_addpointer(pList2,ring_parser_icg_getactiveoperation(pParser));
}
}
/* Other */
if ( ring_parser_iskeyword(pParser,K_OTHER) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
if ( pMark != NULL ) {
ring_parser_icg_addoperandint(pMark,nMark1);
pMark = NULL ;
}
ring_parser_icg_newoperation(pParser,ICO_FREESTACK);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Other --> 'Other' {Statement}");
#endif
while ( ring_parser_stmt(pParser) ) {
if ( pParser->ActiveToken == pParser->TokensCount ) {
break ;
}
}
}
/* OFF */
if ( ring_parser_iskeyword(pParser,K_OFF) ) {
ring_parser_nexttoken(pParser);
/* Generate Code */
nMark1 = ring_parser_icg_newlabel(pParser);
if ( pMark != NULL ) {
ring_parser_icg_addoperandint(pMark,nMark1);
}
if ( ring_list_getsize(pList2) > 0 ) {
for ( x = 1 ; x <= ring_list_getsize(pList2) ; x++ ) {
ring_parser_icg_addoperandint(((List *) ring_list_getpointer(pList2,x)),nMark1);
}
}
ring_list_delete(pList2);
ring_parser_icg_newoperation(pParser,ICO_FREESTACK);
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : OFF --> 'Off'");
#endif
return 1 ;
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_SWITCHOFF);
}
} else {
ring_parser_error(pParser,RING_PARSER_ERROR_SWITCHEXPR);
}
}
/* Statement --> epslion */
if ( ring_parser_epslion(pParser) ) {
return 1 ;
}
/* Statement --> Expr */
if ( ring_parser_expr(pParser) ) {
#if RING_PARSERTRACE
RING_STATE_CHECKPRINTRULES
puts("Rule : Statement --> Expr ");
#endif
ring_parser_icg_newoperation(pParser,ICO_FREESTACK);
return 1 ;
}
return 0 ;
}
RING_API void ring_state_runfile ( RingState *pRingState,const char *cFileName )
{
ring_scanner_readfile(cFileName,pRingState);
}