Clean up previous patch

script/README.md

@@ -12,7 +12,7 @@ You can download data from [here](http://rebel13.nl/index.html)
 
 ## Convert pgn files
 
-**Important : convert text will be superheavy (approx 200 byte / position)** 
+**Important : convert text will be superheavy (approx 200 byte / position)**
 
     python pgn_to_plain.py --pgn "pgn/*.pgn" --start_ply 1 --output converted_pgn.txt
 

script/pgn_to_plain.py

@@ -61,7 +61,7 @@ def parse_comment_for_score(comment_str: str, board: chess.Board) -> int:
       score = 0
 
     return score
-    
+
 def parse_game(game: chess.pgn.Game, writer, start_play: int=1)->None:
     board: chess.Board = game.board()
     if not game_sanity_check(game):
@@ -105,6 +105,6 @@ def main():
                 break
             parse_game(game, f, args.start_ply)
     f.close()
-    
+
 if __name__=="__main__":
     main()

src/misc.h

@@ -53,16 +53,20 @@ void dbg_hit_on(bool c, bool b);
 void dbg_mean_of(int v);
 void dbg_print();
 
+/// Debug macro to write to std::err if NDEBUG flag is set, and do nothing otherwise
 #if defined(NDEBUG)
-template <typename... Ts>
+#define debug 1 && std::cerr
-void debug_print(const Ts&...) {}
 #else
-template <typename... Ts>
+#define debug 0 && std::cerr
-void debug_print(const Ts&... v) {
-  ((std::cerr << v), ...);
-}
 #endif
 
+inline void hit_any_key() {
+#ifndef NDEBUG
+  debug << "Hit any key to continue..." << std::endl << std::flush;
+  system("read");   // on Windows, should be system("pause");
+#endif
+}
+
 typedef std::chrono::milliseconds::rep TimePoint; // A value in milliseconds
 static_assert(sizeof(TimePoint) == sizeof(int64_t), "TimePoint should be 64 bits");
 inline TimePoint now() {