SimpleString CodeMemoryReportFormatter::createVariableNameFromFileLineInfo(const char *file, int line)
{
SimpleString fileNameOnly = extractFileNameFromPath(file);
fileNameOnly.replace(".", "_");
for (int i = 1; i < 100000; i++) {
SimpleString variableName = StringFromFormat("%s_%d_%d", fileNameOnly.asCharString(), line, i);
if (!variableExists(variableName))
return variableName;
}
return "";
}
double in_eval(char *exp) {
int exp_length = strlen(exp), numOfVars = 0;
struct operator_stack *os = create_operator_stack(exp_length / 2);
char *token, *copy, *vars[10] = {NULL}, rpn_exp[1024] = "";
double value = 0;
copy = (char *) malloc(sizeof(char) * exp_length);
strcpy(copy, exp);
token = strtok(copy, " ");
bool previousIsOperator = false,
previousIsLeftParenthese = false,
varsSet = false;
while (token != NULL) {
errorOccurs = true;
varsSet = false;
if (isNumeric(token) && sscanf(token, "%lf", &value) > 0) {
if (!(strlen(rpn_exp) == 0 || previousIsOperator || previousIsLeftParenthese)) return value;
for (int i = 0; i < numOfVars; i++) {
setVariable(vars[i], value);
vars[i] = NULL;
varsSet = true;
}
numOfVars = 0;
errorOccurs = false;
previousIsOperator = false;
previousIsLeftParenthese = false;
concat_double(rpn_exp, value);
} else if (variableValid(token)) {
if (!(strlen(rpn_exp) == 0 || previousIsOperator
|| previousIsLeftParenthese)) return value;
char operator = *(token + strlen(token) + 1);
if (operator == '=') {
vars[numOfVars++] = token;
errorOccurs = false;
} else {
value = getVariable(token);
errorOccurs = !variableExists(token);
concat_double(rpn_exp, value);
}
previousIsOperator = false;
previousIsLeftParenthese = false;
} else if (isOperator(token) || isParenthese(token)) {
if ((isOperator(token) && previousIsOperator)
|| (strcmp(token, ")") == 0 && strlen(rpn_exp) == 0)) return value;
if (numOfVars > 0) return value;
char *op = NULL;
if (strcmp(token, "(") == 0) {
push_operator(os, token);
previousIsLeftParenthese = true;
} else if (strcmp(token, ")") == 0) {
op = peek_operator(os);
if (strcmp(op, "(") == 0) return value;
op = pop_operator(os);
while (strcmp(op, "(") != 0) {
if (strcmp(op, ")") == 0) return value;
concat_operator(rpn_exp, op);
op = pop_operator(os);
}
previousIsLeftParenthese = false;
} else {
int pre1 = -1, pre2 = getOperatorPrecedence(token);
if (os->top > -1) pre1 = getOperatorPrecedence(peek_operator(os));
while (pre2 > pre1 && pre1 > 0 && os->top > -1) {
concat_operator(rpn_exp, pop_operator(os));
if (os->top > -1) pre1 = getOperatorPrecedence(peek_operator(os));
}
push_operator(os, token);
previousIsOperator = true;
previousIsLeftParenthese = false;
}
errorOccurs = false;
} else if (strcmp(token, "=") == 0) {
errorOccurs = false;
} else {
return value;
}
if (errorOccurs) return value;
token = strtok(NULL, " ");
}
while (os->top > -1) concat_operator(rpn_exp, pop_operator(os));
free(copy);
free_operator_stack(os);
if (!(varsSet || errorOccurs)) value = rpn_eval(rpn_exp);
return value;
}