Function substr_str

leif.c:1488–1492

}

void substr_str(const char* str, int start_index, int end_index, char* substring) {
  int substring_length = end_index - start_index + 1; 
  strncpy(substring, str + start_index, substring_length);
  substring[substring_length] = '\0';
}

int map_vals(int value, int from_min, int from_max, int to_min, int to_max) {
  return (value - from_min) * (to_max - to_min) / (from_max - from_min) + to_min;