* Massachusetts.
*
* Enhancements Copyright 1992-2001, 2002, 2003, 2004, 2005, 2006,
- * 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+ * 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free
+ * Software Foundation, Inc.
*
* Enhancements Copyright 2005 Alessandro Scotti
*
extern void yynewfile P((FILE *f));
extern void yynewstr P((char *s));
-extern int yylex P((void));
+extern int Myylex P((void)); // [HGM] yylex now globally invisible, all calls must use wrapper
extern ChessMove yylexstr P((int boardIndex, char *s, char *buf, int buflen));
extern char currentMoveString[];
extern int yyboardindex;
extern char *yy_text; /* Needed because yytext can be either a char[]
or a (non-constant) char* */
extern int yyoffset P((void));
-extern signed char initialRights[BOARD_FILES];
+extern unsigned char initialRights[BOARD_FILES];
+extern signed char castlingRank[BOARD_FILES];
+