X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=parser.l;h=7dda43f4b8b41061adffee9fc74495772d2b7adc;hb=74113c74ca3c2294082fcf9dc87e2af8f991c3cc;hp=29a2fa944bd6f13a7dfb35ccc177fee7df73d083;hpb=cf8ee83ef1cee354cad4503b242f724abac1fe68;p=xboard.git

diff --git a/parser.l b/parser.l
old mode 100755
new mode 100644
index 29a2fa9..7dda43f
--- a/parser.l
+++ b/parser.l
@@ -7,12 +7,12 @@
 %{
 /*
  * 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
- * 1992-2001,2002,2003,2004,2005,2006,2007,2008,2009 Free Software
- * Foundation, Inc.
+ * 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:
@@ -244,8 +244,6 @@ extern void CopyBoard P((Board to, Board from));
 
     result = LegalityTest(boards[yyboardindex],
 			  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,
                           currentMoveString[3] - ONE,
@@ -306,8 +304,6 @@ extern void CopyBoard P((Board to, Board from));
 
     result = LegalityTest(boards[yyboardindex],
 			  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,
                           currentMoveString[3] - ONE,
@@ -360,8 +356,7 @@ extern void CopyBoard P((Board to, Board from));
       return IllegalMove;
 
 
-    Disambiguate(boards[yyboardindex],
-		 PosFlags(yyboardindex), EP_UNKNOWN, &cl);
+    Disambiguate(boards[yyboardindex], PosFlags(yyboardindex), &cl);
 
     currentMoveString[0] = cl.ff + AAA;
     currentMoveString[1] = cl.rf + ONE;
@@ -415,8 +410,7 @@ extern void CopyBoard P((Board to, Board from));
     if(c != '=' && c != '+' && c != NULLCHAR && CharToPiece(c) == EmptySquare)
       return IllegalMove;
 
-    Disambiguate(boards[yyboardindex],
-		 PosFlags(yyboardindex), EP_UNKNOWN, &cl);
+    Disambiguate(boards[yyboardindex], PosFlags(yyboardindex), &cl);
 
     currentMoveString[0] = cl.ff + AAA;
     currentMoveString[1] = cl.rf + ONE;
@@ -470,9 +464,13 @@ extern void CopyBoard P((Board to, Board from));
     if (WhiteOnMove(yyboardindex)) {
         if (yytext[2+skip] == ONE) return (int) ImpossibleMove;
 	currentMoveString[1] = yytext[2+skip] - 1;
+	if(boards[yyboardindex][currentMoveString[1]-ONE][currentMoveString[0]-AAA] != WhitePawn) 
+		return ImpossibleMove;
     } else {
         currentMoveString[1] = currentMoveString[3] + 1;
         if (currentMoveString[3] == ONE+BOARD_HEIGHT-1) return (int) ImpossibleMove;
+	if(boards[yyboardindex][currentMoveString[1]-ONE][currentMoveString[0]-AAA] != BlackPawn) 
+		return ImpossibleMove;
     }
     if (yyleng-skip > 3) {
 	if (yytext[yyleng-1] == ')')
@@ -488,8 +486,6 @@ extern void CopyBoard P((Board to, Board from));
 
     result = LegalityTest(boards[yyboardindex],
 			  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,
                           currentMoveString[3] - ONE,
@@ -529,8 +525,6 @@ extern void CopyBoard P((Board to, Board from));
 
     result = LegalityTest(boards[yyboardindex],
 			  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,
                           currentMoveString[3] - ONE,
@@ -587,8 +581,7 @@ extern void CopyBoard P((Board to, Board from));
        cl.ftIn <  BOARD_LEFT     )
       return 0;
 
-    Disambiguate(boards[yyboardindex],
-		 PosFlags(yyboardindex), EP_UNKNOWN, &cl);
+    Disambiguate(boards[yyboardindex], PosFlags(yyboardindex), &cl);
 
     currentMoveString[0] = cl.ff + AAA;
     currentMoveString[1] = cl.rf + ONE;
@@ -648,8 +641,7 @@ extern void CopyBoard P((Board to, Board from));
        cl.ftIn <  BOARD_LEFT     )
       return 0;
 
-    Disambiguate(boards[yyboardindex],
-		 PosFlags(yyboardindex), EP_UNKNOWN, &cl);
+    Disambiguate(boards[yyboardindex], PosFlags(yyboardindex), &cl);
 
     currentMoveString[0] = cl.ff + AAA;
     currentMoveString[1] = cl.rf + ONE;
@@ -702,7 +694,10 @@ extern void CopyBoard P((Board to, Board from));
             ff = initialRights[5];
             ft = initialRights[4];
         }
-        fprintf(debugFP, "Parser FRC long %d %d\n", ff, ft);
+        if (appData.debugMode) 
+        {
+          fprintf(debugFP, "Parser FRC long %d %d\n", ff, ft);
+        };
         if(ff < 0 || ft < 0) return 0;
     }
     sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);
@@ -711,8 +706,6 @@ extern void CopyBoard P((Board to, Board from));
     }
     return (int) LegalityTest(boards[yyboardindex],
 			      PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: e.p.!
-			      EP_UNKNOWN,
-                              castlingRights[yyboardindex], /* [HGM] use true castling rights */
 			      rf, ff, rt, ft, NULLCHAR);
 }
 
@@ -768,8 +761,6 @@ extern void CopyBoard P((Board to, Board from));
 
     return (int) LegalityTest(boards[yyboardindex],
 			      PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: e.p.!
-			      EP_UNKNOWN,
-                              castlingRights[yyboardindex], /* [HGM] use true castling rights */
 			      rf, ff, rt, ft, NULLCHAR);
 }
 
@@ -842,11 +833,11 @@ extern void CopyBoard P((Board to, Board from));
     return (int) GameIsDrawn;
 }
 
-(([Ww](hite)?)|([Bb](lack)?))" "([Mm]ate(s|ed)?)|([Ww][io]n(s)?.*)  {
+(([Ww](hite)?)|([Bb](lack)?))" "(([Mm]ates)|([Ww][io]n(s)?)) { 
     return (int) (ToUpper(yytext[0]) == 'W' ? WhiteWins : BlackWins);
 }
 
-(([Ww](hite)?)|([Bb](lack)?))" "([Mm]ate(s|ed)?)|([Ll]os[tes]+.*)  {
+(([Ww](hite)?)|([Bb](lack)?))" "(([Mm]ated)|([Ll]os[tes]+)) { 
     return (int) (ToUpper(yytext[0]) == 'W' ? BlackWins : WhiteWins);
 }
 
@@ -915,7 +906,7 @@ extern void CopyBoard P((Board to, Board from));
     return (int) Comment; 
 }
 
-\([^()]*(\([^()]*\)[^()]*)+[^()]*\)  { 	  	/* nested () */
+\([^()]*(\([^()]*(\([^()]*(\([^()]*\)[^()]*)*\)[^()]*)*\)[^()]*)+[^()]*\)  { /* very nested () */
     return (int) Comment; 
 }
 
@@ -981,7 +972,7 @@ int yyoffset()
 static void output(ch)
      int ch;
 {
-    fprintf(stderr, "PARSER BUG: unmatched character '%c' (0%o)\n",
+    if(appData.debugMode) fprintf(debugFP, "PARSER BUG: unmatched character '%c' (0%o)\n",
 	    ch, ch);
 }
 
@@ -993,7 +984,7 @@ static void unput(ch)
 	StringToLex--;
     } else {
 	if (unputCount >= UNPUT_BUF_SIZE)
-	  fprintf(stderr, "PARSER BUG: unput buffer overflow '%c' (0%o)\n",
+	  if(appData.debugMode) fprintf(debugFP, "PARSER BUG: unput buffer overflow '%c' (0%o)\n",
 		  ch, ch);
 	unputBuffer[unputCount++] = ch;
     }