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#include "CellFormula.h"
#include "CellDouble.h"
#include <cstring>
CellFormula::CellFormula(const char* str, const List<List<Cell*>>* tableCells) : referencedCells(), formula(), rawFormula() {
this->tableCells = tableCells;
parseAndSetValue(str);
}
double CellFormula::calculate(unsigned index) {
double lval = formula[index].left->getNumeralValue();
if (formula[index].right < 0) {
switch (-formula[index++].right) {
case plus : lval += formula[index].left->getNumeralValue(); break;
case minus : lval -= formula[index].left->getNumeralValue(); break;
case mult : lval *= formula[index].left->getNumeralValue(); break;
case div : lval /= formula[index].left->getNumeralValue(); break;
// case pow : lval += formula[index].left->getNumeralValue(); break;
}
}
switch(formula[index].right) {
case plus : return lval + calculate(index++);
case minus : return lval - calculate(index++);
case mult : return lval * calculate(index++);
case div : return lval / calculate(index++);
case pow :
case none :
default : return lval;
}
}
String CellFormula::getValueForPrint() {
return String() += calculate();
}
void CellFormula::parseAndSetValue(const char* str) {
rawFormula = String(str);
str++;
while (*str == ' ') str++;
if (*str == 'R') {
unsigned row = atoi(++str);
while (*str != 'C') str++;
unsigned col = atoi(++str);
while (*str != ' ') str++;
formula.add({(*tableCells)[row][col], (Op)*str});
}
else {
double val = atof(str);
while ((*str >= '0' && *str <= '9') || *str == ' ') str++;
localCells.add(CellDouble(val));
formula.add({localCells[localCells.get_count() - 1], (Op)*str});
}
}
void CellFormula::readFromFile(std::ifstream& file) {
file >> rawFormula;
}
void CellFormula::writeToFile(std::ofstream& file) {
file << rawFormula;
}
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