-\r
-// book.h\r
-\r
-#ifndef BOOK_H\r
-#define BOOK_H\r
-\r
-// includes\r
-\r
-#include "board.h"\r
-#include "util.h"\r
-#include "list.h"\r
-\r
-// functions\r
-\r
-extern void book_clear ();\r
-\r
-extern void book_open (const char file_name[]);\r
-extern bool book_is_open ();\r
-extern void book_close ();\r
-\r
-extern bool is_in_book (const board_t * board);\r
-extern int book_move (const board_t * board, bool random);\r
-extern void book_moves (list_t * list, const board_t * board);\r
-extern void book_disp (const board_t * board);\r
-\r
-extern void book_learn_move (const board_t * board, int move, int result);\r
-extern void book_flush ();\r
-\r
-#endif // !defined BOOK_H\r
-\r
-// end of book.h\r
-\r
+
+// book.h
+
+#ifndef BOOK_H
+#define BOOK_H
+
+// includes
+
+#include "board.h"
+#include "util.h"
+#include "list.h"
+
+// functions
+
+extern void book_clear ();
+
+extern void book_open (const char file_name[]);
+extern bool book_is_open ();
+extern void book_close ();
+
+extern bool is_in_book (const board_t * board);
+extern int book_move (const board_t * board, bool random);
+extern void book_moves (list_t * list, const board_t * board);
+extern void book_disp (const board_t * board);
+
+extern void book_learn_move (const board_t * board, int move, int result);
+extern void book_flush ();
+
+#endif // !defined BOOK_H
+
+// end of book.h
+