void tryEvaluatePrefixOperatorOnStackThenPush(Operator *newToken,Stack *numberStack,Stack *operatorStack)
{
Operator *previousToken=(Operator*)stackPop(operatorStack);
if(previousToken == NULL){
stackPush(newToken,operatorStack);
}
else{
while(previousToken!=NULL)
{
if(((Operator*)newToken)->info->id ==CLOSING_BRACKET_OP){
if(((Operator*)previousToken)->info == NULL){
Throw(ERR_EXPECTING_OPENING_BRACKET);
}else if(((Operator*)previousToken)->info->id == OPENING_BRACKET_OP){
operatorPrefixEvaluate(numberStack ,previousToken);
free(newToken);
if(((Operator*)previousToken)->info->id == OPENING_BRACKET_OP){
previousToken=(Operator*)stackPop(operatorStack);
break;
}
}else {
operatorEvaluate(numberStack,previousToken);
}
}else if(newToken->info->precedence >= previousToken->info->precedence || ((Operator*)newToken)->info->id==OPENING_BRACKET_OP ){
break;
}
else{
operatorEvaluate(numberStack,previousToken);
}
previousToken=(Operator*)stackPop(operatorStack);
}
if(previousToken!=NULL ){
stackPush(previousToken,operatorStack);
}
if(newToken->info->affix == PREFIX){
stackPush(newToken,operatorStack);
}
}
}
void tryEvaluateOperatorOnStackThenPush(Operator *newToken,Stack *numberStack,Stack *operatorStack){
Operator *previousToken;
previousToken=(Operator*)stackPop(operatorStack);
if(previousToken==NULL){
stackPush(newToken,operatorStack);
}else{
while(previousToken!=NULL){
if(newToken->info->precedence > previousToken->info->precedence){
break;
}
else{
operatorEvaluate(numberStack,previousToken);
}
previousToken=(Operator*)stackPop(operatorStack);
}
if(previousToken!=NULL ){
stackPush(previousToken,operatorStack);
}
stackPush(newToken,operatorStack);
}
}
void test_operator_evaluate(){
Tokenizer tokenizer;
Operator multiply = {.operators=MULTIPLY};
Token *token1 = (Token*)&multiply;
Number number4 = {.value=4};
Token *token2 = (Token*)&number4;
Number number3 = {.value=3};
Token *token3 = (Token*)&number3;
Operator addition = {.operators=ADD};
Token *token4 = (Token*)&addition;
Number number2 = {.value=2};
Token *token5 = (Token*)&number2;
int tempResult,finalResult;
Stack numStack;
Stack opeStack;
Token resultToken;
Token finalToken;
operatorPop_CMockExpectAndReturn(37, &opeStack, token1);
numberPop_CMockExpectAndReturn(39, &numStack, token2);
numberPop_CMockExpectAndReturn(41, &numStack, token3);
tempResult = number4.value*number3.value;
createNumberToken_CMockExpectAndReturn(44, tempResult, &resultToken);
numberPush_CMockExpect(48, &resultToken);
operatorPop_CMockExpectAndReturn(50, &opeStack, token4);
numberPop_CMockExpectAndReturn(52, &numStack, &resultToken);
numberPop_CMockExpectAndReturn(54, &numStack, token5);
finalResult = tempResult+number2.value;
createNumberToken_CMockExpectAndReturn(57, finalResult, &finalToken);
operatorEvaluate(&numStack,&opeStack,tempResult,finalResult);
}