+struct OptionsMap;
+
+/// UCIOption class implements an option as defined by UCI protocol
+class UCIOption {
+public:
+ UCIOption() {} // Required by std::map::operator[]
+ UCIOption(const char* v);
+ UCIOption(bool v, std::string type = "check");
+ UCIOption(int v, int min, int max);
+
+ void operator=(const std::string& v);
+ void operator=(bool v) { *this = std::string(v ? "true" : "false"); }
+
+ operator int() const {
+ assert(type == "check" || type == "button" || type == "spin");
+ return (type == "spin" ? atoi(currentValue.c_str()) : currentValue == "true");
+ }
+
+ operator std::string() const {
+ assert(type == "string");
+ return currentValue;
+ }
+
+private:
+ friend std::ostream& operator<<(std::ostream&, const OptionsMap&);
+
+ std::string defaultValue, currentValue, type;
+ int min, max;
+ size_t idx;
+};
+
+
+/// Custom comparator because UCI options should be case insensitive
+struct CaseInsensitiveLess {
+ bool operator() (const std::string&, const std::string&) const;
+};
+
+
+/// Our options container is actually a map with a customized c'tor
+struct OptionsMap : public std::map<std::string, UCIOption, CaseInsensitiveLess> {
+ OptionsMap();
+};