void EXParser::evaluateOperator(std::string & _expression, const int index, EXOperatorSet::iterator oiter)
{
if(oiter->first!='('){
std::string leftVal, rightVal, strVal;
if((leftVal = getLeftOfOperator(_expression, index-1)).empty() || (rightVal = getRightOfOperator(_expression, index+1)).empty()){
throw EXError("operator_logic_error", ErrorIndex::OPERATOR_LOGIC_ERROR);
}
double value = oiter->second(strToDbl(leftVal.c_str()), strToDbl(rightVal.c_str()));
if(isInf(value)){
throw EXError("infinity_error", ErrorIndex::INFINITY_ERROR);
}
if(isNan(value)){
throw EXError("not_a_number", ErrorIndex::NAN_ERROR);
}
_expression.replace(index-leftVal.length(), leftVal.length() + rightVal.length()+1, dblToStr(value));
}
else{
evaluateParenthesis(_expression, index);
}
}
bool EXParser::evaluateOperator(std::string & _expression, const int index, EXOperatorSet::iterator oiter)
{
if(oiter->first!='('){
std::string leftVal, rightVal, strVal;
if((leftVal = getLeftOfOperator(_expression, index-1)).empty() || (rightVal = getRightOfOperator(_expression, index+1)).empty()){
mErrorStr = "operator logic error";
return false;
}
double value = oiter->second(strToDbl(leftVal.c_str()), strToDbl(rightVal.c_str()));
if(isInf(value)){
mErrorStr = "infinity error";
return false;
}
if(isNan(value)){
mErrorStr = "not a number";
return false;
}
_expression.replace(index-leftVal.length(), leftVal.length() + rightVal.length()+1, dblToStr(value));
}
else{
evaluateParenthesis(_expression, index);
}
return true;
}