From: H.G. Muller <h.g.muller@hccnet.nl>
Date: Sun, 12 Jul 2009 01:20:56 +0000 (-0700)
Subject: fixed parser error for knight move
X-Git-Tag: v4.4.0.beta1~32
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=fbaf2c67f80ae9a26950a0754128f0e366aea862;p=xboard.git

fixed parser error for knight move

The parser had a strange quirk: it recognized bd2 as a valid Knight move
(Nb1-d2) while this SAN format should be reserved for Pawn moves only.
---

diff --git a/parser.l b/parser.l
index 29a2fa9..0d60813 100755
--- a/parser.l
+++ b/parser.l
@@ -470,9 +470,13 @@ 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] == ')')