1/*
2 Stockfish, a UCI chess playing engine derived from Glaurung 2.1
3 Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
4 Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
5 Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
6
7 Stockfish is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
11
12 Stockfish is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19*/
20
21#ifndef UCI_H_INCLUDED
22#define UCI_H_INCLUDED
23
24#include <map>
25#include <string>
26
27#include "types.h"
28
29class Position;
30
31namespace UCI {
32
33class Option;
34
35/// Custom comparator because UCI options should be case insensitive
36struct CaseInsensitiveLess {
37 bool operator() (const std::string&, const std::string&) const;
38};
39
40/// Our options container is actually a std::map
41typedef std::map<std::string, Option, CaseInsensitiveLess> OptionsMap;
42
43/// Option class implements an option as defined by UCI protocol
44class Option {
45
46 typedef void (*OnChange)(const Option&);
47
48public:
49 Option(OnChange = nullptr);
50 Option(bool v, OnChange = nullptr);
51 Option(const char* v, OnChange = nullptr);
52 Option(double v, int minv, int maxv, OnChange = nullptr);
53 Option(const char* v, const char* cur, OnChange = nullptr);
54
55 Option& operator=(const std::string&);
56 void operator<<(const Option&);
57 operator double() const;
58 operator std::string() const;
59 bool operator==(const char*) const;
60
61private:
62 friend std::ostream& operator<<(std::ostream&, const OptionsMap&);
63
64 std::string defaultValue, currentValue, type;
65 int min, max;
66 size_t idx;
67 OnChange on_change;
68};
69
70void init(OptionsMap&);
71void loop(int argc, char* argv[]);
72std::string value(Value v);
73std::string square(Square s);
74std::string move(Move m, bool chess960);
75std::string pv(const Position& pos, Depth depth, Value alpha, Value beta);
76Move to_move(const Position& pos, std::string& str);
77
78} // namespace UCI
79
80extern UCI::OptionsMap Options;
81
82#endif // #ifndef UCI_H_INCLUDED
83