#pragma once

struct String {

	size_t length;
	char* data;

	char operator[](int index) {
		if (index < 0) {
			return 0;
		} 
		if (index < length) {
			return data[index];
		}
		return 0;
	}
};

String operator""_str(const char* str, size_t length) {
	return { length, (char*)str };
}

void advance(String &s, int num = 1) {
	int to_advance = min(s.length, num);
	s.data = s.data + to_advance;
	s.length = s.length - to_advance;
}

bool starts_with(String s, String start) {
	if (s.length < start.length) {
		return false;
	}
	for (int i = 0; i < start.length; i++) {
		if (s[i] != start[i]) {
			return false;
		}
	}
	return true;
}