static const char* PieceToChar[COLOR_NB] = { " PNBRQK", " pnbrqk" };
-/// score_to_uci() converts a value to a string suitable for use with the UCI
+/// score_to_uci() converts a Value to a string suitable for use with the UCI
/// protocol specifications:
///
/// cp <x> The score from the engine's point of view in centipawns.
/// mate <y> Mate in y moves, not plies. If the engine is getting mated
/// use negative values for y.
-string UCI::score_to_uci(Value v, Value alpha, Value beta) {
+string UCI::format_value(Value v, Value alpha, Value beta) {
stringstream ss;
}
-/// move_to_uci() converts a move to a string in coordinate notation
+/// format_square() converts a Square to a string (g1, a7, etc.)
+
+std::string UCI::format_square(Square s) {
+ char ch[] = { 'a' + file_of(s), '1' + rank_of(s), 0 };
+ return ch;
+}
+
+
+/// format_move() converts a Move to a string in coordinate notation
/// (g1f3, a7a8q, etc.). The only special case is castling moves, where we print
/// in the e1g1 notation in normal chess mode, and in e1h1 notation in chess960
/// mode. Internally castling moves are always encoded as "king captures rook".
-const string UCI::move_to_uci(Move m, bool chess960) {
+string UCI::format_move(Move m, bool chess960) {
Square from = from_sq(m);
Square to = to_sq(m);
if (type_of(m) == CASTLING && !chess960)
to = make_square(to > from ? FILE_G : FILE_C, rank_of(from));
- string move = to_string(from) + to_string(to);
+ string move = format_square(from) + format_square(to);
if (type_of(m) == PROMOTION)
move += PieceToChar[BLACK][promotion_type(m)]; // Lower case
}
-/// move_from_uci() takes a position and a string representing a move in
+/// to_move() takes a position and a string representing a move in
/// simple coordinate notation and returns an equivalent legal Move if any.
-Move UCI::move_from_uci(const Position& pos, string& str) {
+Move UCI::to_move(const Position& pos, string& str) {
if (str.length() == 5) // Junior could send promotion piece in uppercase
str[4] = char(tolower(str[4]));
for (MoveList<LEGAL> it(pos); *it; ++it)
- if (str == move_to_uci(*it, pos.is_chess960()))
+ if (str == format_move(*it, pos.is_chess960()))
return *it;
return MOVE_NONE;
if (!can_castle(WHITE) && !can_castle(BLACK))
ss << '-';
- ss << (ep_square() == SQ_NONE ? " - " : " " + UCI::to_string(ep_square()) + " ")
+ ss << (ep_square() == SQ_NONE ? " - " : " " + UCI::format_square(ep_square()) + " ")
<< st->rule50 << " " << 1 + (gamePly - (sideToMove == BLACK)) / 2;
return ss.str();
<< std::setfill('0') << std::setw(16) << st->key << "\nCheckers: ";
for (Bitboard b = checkers(); b; )
- ss << UCI::to_string(pop_lsb(&b)) << " ";
+ ss << UCI::format_square(pop_lsb(&b)) << " ";
return ss.str();
}
pos.undo_move(*it);
}
if (Root)
- sync_cout << UCI::move_to_uci(*it, pos.is_chess960()) << ": " << cnt << sync_endl;
+ sync_cout << UCI::format_move(*it, pos.is_chess960()) << ": " << cnt << sync_endl;
}
return nodes;
}
{
RootMoves.push_back(MOVE_NONE);
sync_cout << "info depth 0 score "
- << UCI::score_to_uci(RootPos.checkers() ? -VALUE_MATE : VALUE_DRAW)
+ << UCI::format_value(RootPos.checkers() ? -VALUE_MATE : VALUE_DRAW)
<< sync_endl;
goto finalize;
}
// Best move could be MOVE_NONE when searching on a stalemate position
- sync_cout << "bestmove " << UCI::move_to_uci(RootMoves[0].pv[0], RootPos.is_chess960())
- << " ponder " << UCI::move_to_uci(RootMoves[0].pv[1], RootPos.is_chess960())
+ sync_cout << "bestmove " << UCI::format_move(RootMoves[0].pv[0], RootPos.is_chess960())
+ << " ponder " << UCI::format_move(RootMoves[0].pv[1], RootPos.is_chess960())
<< sync_endl;
}
if (thisThread == Threads.main() && Time::now() - SearchTime > 3000)
sync_cout << "info depth " << depth
- << " currmove " << UCI::move_to_uci(move, pos.is_chess960())
+ << " currmove " << UCI::format_move(move, pos.is_chess960())
<< " currmovenumber " << moveCount + PVIdx << sync_endl;
}
ss << "info depth " << d
<< " seldepth " << selDepth
- << " score " << (i == PVIdx ? UCI::score_to_uci(v, alpha, beta) : UCI::score_to_uci(v))
+ << " score " << (i == PVIdx ? UCI::format_value(v, alpha, beta) : UCI::format_value(v))
<< " nodes " << pos.nodes_searched()
<< " nps " << pos.nodes_searched() * 1000 / elapsed
<< " time " << elapsed
<< " pv";
for (size_t j = 0; RootMoves[i].pv[j] != MOVE_NONE; ++j)
- ss << " " << UCI::move_to_uci(RootMoves[i].pv[j], pos.is_chess960());
+ ss << " " << UCI::format_move(RootMoves[i].pv[j], pos.is_chess960());
}
return ss.str();
SetupStates = Search::StateStackPtr(new std::stack<StateInfo>());
// Parse move list (if any)
- while (is >> token && (m = UCI::move_from_uci(pos, token)) != MOVE_NONE)
+ while (is >> token && (m = UCI::to_move(pos, token)) != MOVE_NONE)
{
SetupStates->push(StateInfo());
pos.do_move(m, SetupStates->top());
{
if (token == "searchmoves")
while (is >> token)
- limits.searchmoves.push_back(UCI::move_from_uci(pos, token));
+ limits.searchmoves.push_back(UCI::to_move(pos, token));
else if (token == "wtime") is >> limits.time[WHITE];
else if (token == "btime") is >> limits.time[BLACK];
void init(OptionsMap&);
void loop(int argc, char* argv[]);
-std::string score_to_uci(Value v, Value alpha = -VALUE_INFINITE, Value beta = VALUE_INFINITE);
-Move move_from_uci(const Position& pos, std::string& str);
-const std::string move_to_uci(Move m, bool chess960);
-
-inline const std::string to_string(Square s) {
- char ch[] = { 'a' + file_of(s), '1' + rank_of(s), 0 };
- return ch;
-}
+Move to_move(const Position& pos, std::string& str);
+std::string format_move(Move m, bool chess960);
+std::string format_value(Value v, Value alpha = -VALUE_INFINITE, Value beta = VALUE_INFINITE);
+std::string format_square(Square s);
} // namespace UCI