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#include <iostream>
#include <print>
#include <string>
#include <cmath>
// github.com/jstmaxlol/escape.ANSI.sux
#include "escape.ansi"
int calculate(double& n1, char& op, double& n2);
void usage();
int main(int argc, char** argv) {
if (argc > 5) {
std::print("::> {}xsc.Error{}/{}too_many_arguments{}\n", red, def, red, def);
return 1;
}
if (argc < 2) {
std::print("::> {}xsc.Error{}/{}not_enough_arguments{}\n", red, def, red, def);
return 1;
}
std::string arg1 = argv[1];
// help
if (arg1 == "help" || arg1 == "h") {
usage();
return 0;
}
if (arg1 == "--help" || arg1 == "-h") {
std::print("::> {}xsc.Warning{}/{}non_existing_argument{}\n", red, def, red, def);
std::print("::> did you mean: {}h{} || {}help{}?\n", yellow, def, yellow, def);
usage();
return 1;
}
// square root: xsc <num> r
if (argc == 3) {
double n1;
try {
n1 = std::stod(arg1);
} catch (...) {
std::print("::> {}xsc.Error{}/{}invalid_number{}\n", red, def, red, def);
return 1;
}
std::string opstr = argv[2];
if (opstr == "r") {
std::print("{}\n", sqrt(n1));
return 0;
} else {
std::print("::> {}xsc.Error{}/{}invalid_operator{}\n", red, def, red, def);
return 1;
}
}
// normal operation: xsc <num1> <op> <num2>
if (argc == 4) {
double n1, n2;
char op;
try {
n1 = std::stod(arg1);
n2 = std::stod(argv[3]);
} catch (...) {
std::print("::> {}xsc.Error{}/{}invalid_number{}\n", red, def, red, def);
return 1;
}
op = argv[2][0];
return calculate(n1, op, n2);
}
// if only 1 argument and not help
// TODO: remove this shit because it *is* redundant(, right?)
std::print("::> {}xsc.Error{}/{}not_enough_arguments{}\n", red, def, red, def);
return 1;
}
int calculate(double& n1, char& op, double& n2) {
switch (op) {
case '+': {
std::cout << n1 + n2 << "\n";
return 0;
}
case '-': {
std::cout << n1 - n2 << "\n";
return 0;
}
case 'x': {
std::cout << n1 * n2 << "\n";
return 0;
}
case '/': {
if (n2 == 0) {
std::print("::> {}xsc.MathError{}/{}division_by_zero{}\n", red, def, red, def);
return 1;
}
std::cout << n1 / n2 << "\n";
return 0;
}
case '%': {
std::cout << (n1 / n2) * 100 << "\n";
return 0;
}
case '^': {
std::cout << pow(n1, n2) << "\n";
return 0;
}
}
return 1;
}
void usage() {
// Prints usage message (help)
system("figlet XSC | lolcat"); // TODO: fallback if figlet & lolcat are not installed (not needed for aur users, so is it useful?)
std::cout
<< "[ eXtremelySimpleCalculator usage screen ]\n\n"
<< "'xsc help / h' | print usage screen (this one!)\n"
<< "'xsc <num1> <(+|-|x|/|%|^)> <num2>' | outputs expression's result\n"
<< "'xsc <num1> r' | outputs the square root of num1\n"
;
}
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