worked on premove bug

[xboard.git] / winboard / parser.c

diff --git a/winboard/parser.c b/winboard/parser.c
index ad2369e..08d0755 100644 (file)
--- a/winboard/parser.c
+++ b/winboard/parser.c
@@ -10,6 +10,7 @@
 
 #include <stdio.h>
 
+
 /* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
 #ifdef c_plusplus
 #ifndef __cplusplus
@@ -1706,10 +1707,12 @@ char *yytext;
 #define INITIAL 0
 /*
  * parser.l -- lex parser of algebraic chess moves for XBoard
- * $Id: parser.l,v 2.1 2003/10/27 19:21:00 mann Exp $
  *
- * Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts.
- * Enhancements Copyright 1992-95 Free Software Foundation, Inc.
+ * Copyright 1991 by Digital Equipment Corporation, Maynard,
+ * Massachusetts.
+ *
+ * Enhancements Copyright 1992-2001, 2002, 2003, 2004, 2005, 2006,
+ * 2007, 2008, 2009 Free Software Foundation, Inc.
  *
  * The following terms apply to Digital Equipment Corporation's copyright
  * interest in XBoard:
@@ -1733,24 +1736,25 @@ char *yytext;
  * SOFTWARE.
  * ------------------------------------------------------------------------
  *
- * The following terms apply to the enhanced version of XBoard distributed
- * by the Free Software Foundation:
+ * The following terms apply to the enhanced version of XBoard
+ * distributed by the Free Software Foundation:
  * ------------------------------------------------------------------------
- * This program is free software; you can redistribute it and/or modify
+ *
+ * GNU XBoard is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
  *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+ * GNU XBoard is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- * ------------------------------------------------------------------------
- */
+ * along with this program. If not, see http://www.gnu.org/licenses/.  
+ *
+ *------------------------------------------------------------------------
+ ** See the file ChangeLog for a revision history.  */
 
 /* This parser handles all forms of promotion.
  * The parser resolves ambiguous moves by searching and check-testing.
@@ -2197,7 +2201,8 @@ YY_RULE_SETUP
       return (int) IllegalMove;
 
     result = LegalityTest(boards[yyboardindex],
-                         PosFlags(yyboardindex), EP_UNKNOWN,
+                         PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: might think we can e.p.!
+                         EP_UNKNOWN,
                           initialRights, /* [HGM] assume all castlings allowed */
                           currentMoveString[1] - ONE,
                           currentMoveString[0] - AAA,
@@ -2260,7 +2265,8 @@ YY_RULE_SETUP
       return 0;
 
     result = LegalityTest(boards[yyboardindex],
-                         PosFlags(yyboardindex), EP_UNKNOWN,
+                         PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: might think we can e.p.!
+                         EP_UNKNOWN,
                           initialRights, /* [HGM] assume all castlings allowed */
                           currentMoveString[1] - ONE,
                           currentMoveString[0] - AAA,
@@ -2446,7 +2452,8 @@ YY_RULE_SETUP
     }
 
     result = LegalityTest(boards[yyboardindex],
-                         PosFlags(yyboardindex), EP_UNKNOWN,
+                         PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: might think we can e.p.!
+                         EP_UNKNOWN,
                           initialRights, /* [HGM] assume all castlings allowed */
                           currentMoveString[1] - ONE,
                           currentMoveString[0] - AAA,
@@ -2486,7 +2493,8 @@ YY_RULE_SETUP
     }
 
     result = LegalityTest(boards[yyboardindex],
-                         PosFlags(yyboardindex), EP_UNKNOWN,
+                         PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: might think we can e.p.!
+                         EP_UNKNOWN,
                           initialRights, /* [HGM] assume all castlings allowed */
                           currentMoveString[1] - ONE,
                           currentMoveString[0] - AAA,
@@ -2673,7 +2681,8 @@ YY_RULE_SETUP
         fprintf(debugFP, "long castling %d %d\n", ff, ft);
     }
     return (int) LegalityTest(boards[yyboardindex],
-                             PosFlags(yyboardindex), EP_UNKNOWN,
+                             PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: e.p.!
+                             EP_UNKNOWN,
                               castlingRights[yyboardindex], /* [HGM] use true castling rights */
                              rf, ff, rt, ft, NULLCHAR);
 }
@@ -2731,7 +2740,8 @@ YY_RULE_SETUP
     }
 
     return (int) LegalityTest(boards[yyboardindex],
-                              PosFlags(yyboardindex), EP_UNKNOWN,
+                             PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: e.p.!
+                             EP_UNKNOWN,
                               castlingRights[yyboardindex], /* [HGM] use true castling rights */
                              rf, ff, rt, ft, NULLCHAR);
 }