Function importLibToDatabase

Rapfi/database/dbutils.cpp:316–427

}

size_t importLibToDatabase(DBStorage &dbDst, std::istream &libStream, Rule rule, int boardSize)
{
    size_t writeCount = 0;

    try {
        Renlib::RenlibReader libReader(libStream);

        auto callback = [&](const Board       &board,
                            bool               hasTag,
                            const std::string *text,
                            const std::string *comment) {
            DBKey    key = constructDBKey(board, rule);
            DBRecord oldRecord, newRecord = {LABEL_NONE};
            bool     hasOldRecord = dbDst.get(key, oldRecord);

            if (!text && !comment) {
                // Write empty record if no record exists
                if (!hasOldRecord) {
                    dbDst.set(key, newRecord, RECORD_MASK_LVDB);
                    writeCount++;
                }

                return;
            }

            if (text && text->size() > 0) {
                const std::string &t = *text;
                if (t[0] == 'W') {
                    newRecord.label = LABEL_WIN;
                    if (t.size() > 1) {
                        int mateStepFromRoot = std::atoi(t.c_str() + 1);
                        if (mateStepFromRoot > board.ply()) {
                            newRecord.value = mated_in(mateStepFromRoot - board.ply());
                            newRecord.setDepthBound(0, BOUND_EXACT);
                        }
                    }
                }
                else if (t[0] == 'L') {
                    newRecord.label = LABEL_LOSE;
                    if (t.size() > 1) {
                        int mateStepFromRoot = std::atoi(t.c_str() + 1);
                        if (mateStepFromRoot > board.ply()) {
                            newRecord.value = mate_in(mateStepFromRoot - board.ply());
                            newRecord.setDepthBound(0, BOUND_EXACT);
                        }
                    }
                }
                else if (t[0] == Config::DatabaseLibBlackWinMark && board.sideToMove() == BLACK) {
                    newRecord.label = LABEL_WIN;
                }
                else if (t[0] == Config::DatabaseLibWhiteWinMark && board.sideToMove() == WHITE) {
                    newRecord.label = LABEL_WIN;
                }
                else if (t[0] == Config::DatabaseLibBlackLoseMark && board.sideToMove() == BLACK) {
                    newRecord.label = LABEL_LOSE;
                }
                else if (t[0] == Config::DatabaseLibWhiteLoseMark && board.sideToMove() == WHITE) {
                    newRecord.label = LABEL_LOSE;