%{\r
/*\r
* parser.l -- lex parser of algebraic chess moves for XBoard\r
- * $Id: parser.l,v 2.1 2003/10/27 19:21:00 mann Exp $\r
*\r
- * Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts.\r
- * Enhancements Copyright 1992-95 Free Software Foundation, Inc.\r
+ * Copyright 1991 by Digital Equipment Corporation, Maynard,\r
+ * Massachusetts.\r
+ *\r
+ * Enhancements Copyright 1992-2001, 2002, 2003, 2004, 2005,\r
+ * 2006, 2007, 2008, 2009 Free Software Foundation, Inc.\r
*\r
* The following terms apply to Digital Equipment Corporation's copyright\r
* interest in XBoard:\r
* SOFTWARE.\r
* ------------------------------------------------------------------------\r
*\r
- * The following terms apply to the enhanced version of XBoard distributed\r
- * by the Free Software Foundation:\r
+ * The following terms apply to the enhanced version of XBoard\r
+ * distributed by the Free Software Foundation:\r
* ------------------------------------------------------------------------\r
- * This program is free software; you can redistribute it and/or modify\r
+ *\r
+ * GNU XBoard is free software: you can redistribute it and/or modify\r
* it under the terms of the GNU General Public License as published by\r
- * the Free Software Foundation; either version 2 of the License, or\r
- * (at your option) any later version.\r
+ * the Free Software Foundation, either version 3 of the License, or (at\r
+ * your option) any later version.\r
*\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
+ * GNU XBoard is distributed in the hope that it will be useful, but\r
+ * WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
+ * General Public License for more details.\r
*\r
* You should have received a copy of the GNU General Public License\r
- * along with this program; if not, write to the Free Software\r
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\r
- * ------------------------------------------------------------------------\r
- */\r
+ * along with this program. If not, see http://www.gnu.org/licenses/. \r
+ *\r
+ *------------------------------------------------------------------------\r
+ ** See the file ChangeLog for a revision history. */\r
\r
/* This parser handles all forms of promotion.\r
* The parser resolves ambiguous moves by searching and check-testing.\r
\r
#ifdef FLEX_SCANNER\r
/* This is flex */\r
+/* [AP] use prototypes in function declarations */\r
+#define YY_USE_PROTOS\r
+\r
+#ifdef YY_USE_PROTOS\r
+#define YY_PROTO(proto) proto\r
+#else\r
+#define YY_PROTO(proto) ()\r
+#endif\r
+/* end of [AP] fix */\r
+\r
#undef YY_INPUT\r
#define YY_INPUT(buf, result, max_size) my_yy_input(buf, &result, max_size)\r
#undef YY_DECL\r
int skip1 = 0, skip2 = 0, skip3 = 0, promoted = 0;\r
ChessSquare piece;\r
ChessMove result;\r
+ char c;\r
\r
if (yyskipmoves) return (int) AmbiguousMove; /* not disambiguated */\r
\r
currentMoveString[3] = yytext[4+skip1+skip2];\r
currentMoveString[4] = NULLCHAR;\r
\r
+ if (appData.debugMode) {\r
+ fprintf(debugFP, "Parser Qa1b2: yyleng=%d\n",\r
+ yyleng);\r
+ }\r
+\r
if (yyleng-skip1-skip2 > 5) { char c;\r
if (yytext[yyleng-1] == ')') {\r
c = currentMoveString[4] = ToLower(yytext[yyleng-2]);\r
piece = boards[yyboardindex]\r
[currentMoveString[1] - ONE][currentMoveString[0] - AAA];\r
if(promoted) piece = (ChessSquare) (DEMOTED piece);\r
- if (ToLower(yytext[skip3]) != ToLower(PieceToChar(piece)))\r
+ c = PieceToChar(piece);\r
+ if(c == '~') c = PieceToChar((ChessSquare) (DEMOTED piece));\r
+ if (ToLower(yytext[skip3]) != ToLower(c))\r
return (int) IllegalMove;\r
\r
result = LegalityTest(boards[yyboardindex],\r
- PosFlags(yyboardindex), EP_UNKNOWN,\r
+ PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: might think we can e.p.!\r
+ EP_UNKNOWN,\r
initialRights, /* [HGM] assume all castlings allowed */\r
currentMoveString[1] - ONE,\r
currentMoveString[0] - AAA,\r
return (int) result;\r
}\r
\r
-[a-l][0-9][xX:-]?[a-l][0-9]((=?\(?[A-Z]\)?)|=)? {\r
+[a-l][0-9][xX:-]?[a-l][0-9]((=?\(?[A-Za-z]\)?)|=)? {\r
/*\r
* Simple algebraic move, possibly with promotion\r
+ * [HGM] Engine moves are received in this format, with lower-case promoChar!\r
*/\r
int skip = 0;\r
ChessMove result;\r
return 0;\r
\r
result = LegalityTest(boards[yyboardindex],\r
- PosFlags(yyboardindex), EP_UNKNOWN,\r
+ PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: might think we can e.p.!\r
+ EP_UNKNOWN,\r
initialRights, /* [HGM] assume all castlings allowed */\r
currentMoveString[1] - ONE,\r
currentMoveString[0] - AAA,\r
if (currentMoveString[4] == NULLCHAR &&\r
(result == WhitePromotionKnight || result == BlackPromotionKnight ||\r
result == WhitePromotionQueen || result == BlackPromotionQueen)) {\r
- currentMoveString[4] = PieceToChar(BlackQueen);\r
+ if(gameInfo.variant == VariantShatranj || gameInfo.variant == VariantCourier)\r
+ currentMoveString[4] = PieceToChar(BlackFerz);\r
+ else if(gameInfo.variant == VariantGreat)\r
+ currentMoveString[4] = PieceToChar(BlackMan);\r
+ else\r
+ currentMoveString[4] = PieceToChar(BlackQueen);\r
currentMoveString[5] = NULLCHAR;\r
}\r
\r
\r
if (gameInfo.variant == VariantXiangqi && /* [HGM] In Xiangqi rank stays same */\r
currentMoveString[0] != currentMoveString[2] ) {\r
- if (yytext[2+skip] == ONE) return (int) ImpossibleMove;\r
currentMoveString[1] = yytext[2+skip];\r
} else \r
if (WhiteOnMove(yyboardindex)) {\r
if (yytext[2+skip] == ONE) return (int) ImpossibleMove;\r
currentMoveString[1] = yytext[2+skip] - 1;\r
+ if(boards[yyboardindex][currentMoveString[1]-ONE][currentMoveString[0]-AAA] != WhitePawn) \r
+ return ImpossibleMove;\r
} else {\r
currentMoveString[1] = currentMoveString[3] + 1;\r
if (currentMoveString[3] == ONE+BOARD_HEIGHT-1) return (int) ImpossibleMove;\r
+ if(boards[yyboardindex][currentMoveString[1]-ONE][currentMoveString[0]-AAA] != BlackPawn) \r
+ return ImpossibleMove;\r
}\r
if (yyleng-skip > 3) {\r
if (yytext[yyleng-1] == ')')\r
}\r
\r
result = LegalityTest(boards[yyboardindex],\r
- PosFlags(yyboardindex), EP_UNKNOWN,\r
+ PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: might think we can e.p.!\r
+ EP_UNKNOWN,\r
initialRights, /* [HGM] assume all castlings allowed */\r
currentMoveString[1] - ONE,\r
currentMoveString[0] - AAA,\r
(result == WhitePromotionQueen || result == BlackPromotionQueen ||\r
result == WhitePromotionKnight || result == BlackPromotionKnight)) {\r
currentMoveString[4] = PieceToChar(BlackQueen);\r
+ // [HGM] shatranj: take care of variants without Queen\r
+ if(gameInfo.variant == VariantShatranj || gameInfo.variant == VariantCourier)\r
+ currentMoveString[4] = PieceToChar(BlackFerz);\r
+ if(gameInfo.variant == VariantGreat)\r
+ currentMoveString[4] = PieceToChar(BlackMan);\r
currentMoveString[5] = NULLCHAR;\r
}\r
\r
}\r
\r
result = LegalityTest(boards[yyboardindex],\r
- PosFlags(yyboardindex), EP_UNKNOWN,\r
+ PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: might think we can e.p.!\r
+ EP_UNKNOWN,\r
initialRights, /* [HGM] assume all castlings allowed */\r
currentMoveString[1] - ONE,\r
currentMoveString[0] - AAA,\r
if(yyleng-skip > 3) /* [HGM] can have Shogi-style promotion */\r
cl.promoCharIn = yytext[yyleng-1];\r
\r
+ if (appData.debugMode) {\r
+ fprintf(debugFP, "Parser Qa1: yyleng=%d, %d(%d,%d)-(%d,%d) = %d (%c)\n",\r
+ yyleng,\r
+ cl.pieceIn,cl.ffIn,cl.rfIn,cl.ftIn,cl.rtIn,cl.promoCharIn,cl.promoCharIn?cl.promoCharIn:' ');\r
+ }\r
+\r
/* [HGM] but do not allow values beyond board size */\r
if(cl.rtIn >= BOARD_HEIGHT ||\r
cl.rtIn < 0 ||\r
currentMoveString[1] = cl.rf + ONE;\r
currentMoveString[2] = cl.ft + AAA;\r
currentMoveString[3] = cl.rt + ONE;\r
- currentMoveS\0tring[4] = cl.promoChar;\r
+ currentMoveString[4] = cl.promoChar;\r
currentMoveString[5] = NULLCHAR;\r
\r
return (int) cl.kind;\r
ff = (BOARD_WIDTH-1)>>1;\r
rt = 0;\r
ft = BOARD_RGHT-3;\r
- sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);\r
} else {\r
rf = 0;\r
ff = BOARD_WIDTH>>1;\r
rt = 0;\r
ft = BOARD_LEFT+2;\r
- sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);\r
}\r
} else{ \r
- if (boards[yyboardindex][BOARD_HEIGHT-1][3] == BlackKing) {\r
+ if (boards[yyboardindex][BOARD_HEIGHT-1][(BOARD_WIDTH-1)>>1] == BlackKing) {\r
/* ICS wild castling */\r
rf = BOARD_HEIGHT-1;\r
ff = (BOARD_WIDTH-1)>>1;\r
rt = BOARD_HEIGHT-1;\r
ft = BOARD_RGHT-3;\r
- sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);\r
} else {\r
rf = BOARD_HEIGHT-1;\r
ff = BOARD_WIDTH>>1;\r
rt = BOARD_HEIGHT-1;\r
ft = BOARD_LEFT+2;\r
- sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);\r
}\r
}\r
+ if(gameInfo.variant == VariantFischeRandom) {\r
+ if (WhiteOnMove(yyboardindex)) {\r
+ ff = initialRights[2];\r
+ ft = initialRights[1];\r
+ } else {\r
+ ff = initialRights[5];\r
+ ft = initialRights[4];\r
+ }\r
+ fprintf(debugFP, "Parser FRC long %d %d\n", ff, ft);\r
+ if(ff < 0 || ft < 0) return 0;\r
+ }\r
+ sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);\r
+ if (appData.debugMode) {\r
+ fprintf(debugFP, "long castling %d %d\n", ff, ft);\r
+ }\r
return (int) LegalityTest(boards[yyboardindex],\r
- PosFlags(yyboardindex), EP_UNKNOWN,\r
- initialRights, /* [HGM] assume all castlings allowed */\r
+ PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: e.p.!\r
+ EP_UNKNOWN,\r
+ castlingRights[yyboardindex], /* [HGM] use true castling rights */\r
rf, ff, rt, ft, NULLCHAR);\r
}\r
\r
ff = (BOARD_WIDTH-1)>>1;\r
rt = 0;\r
ft = BOARD_LEFT+1;\r
- sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);\r
} else {\r
rf = 0;\r
ff = BOARD_WIDTH>>1;\r
rt = 0;\r
ft = BOARD_RGHT-2;\r
- sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);\r
}\r
} else {\r
if (boards[yyboardindex][BOARD_HEIGHT-1][(BOARD_WIDTH-1)>>1] == BlackKing) {\r
ff = (BOARD_WIDTH-1)>>1;\r
rt = BOARD_HEIGHT-1;\r
ft = BOARD_LEFT+1;\r
- sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);\r
} else {\r
rf = BOARD_HEIGHT-1;\r
ff = BOARD_WIDTH>>1;\r
rt = BOARD_HEIGHT-1;\r
ft = BOARD_RGHT-2;\r
- sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);\r
}\r
}\r
+ if(gameInfo.variant == VariantFischeRandom) {\r
+ if (WhiteOnMove(yyboardindex)) {\r
+ ff = initialRights[2];\r
+ ft = initialRights[0];\r
+ } else {\r
+ ff = initialRights[5];\r
+ ft = initialRights[3];\r
+ }\r
+ if (appData.debugMode) {\r
+ fprintf(debugFP, "Parser FRC short %d %d\n", ff, ft);\r
+ }\r
+ if(ff < 0 || ft < 0) return 0;\r
+ }\r
+ sprintf(currentMoveString, "%c%c%c%c",ff+AAA,rf+ONE,ft+AAA,rt+ONE);\r
+ if (appData.debugMode) {\r
+ fprintf(debugFP, "short castling %d %d\n", ff, ft);\r
+ }\r
+\r
return (int) LegalityTest(boards[yyboardindex],\r
- PosFlags(yyboardindex), EP_UNKNOWN,\r
- initialRights, /* [HGM] assume all castlings allowed */\r
+ PosFlags(yyboardindex)&~F_MANDATORY_CAPTURE, // [HGM] losers: e.p.!\r
+ EP_UNKNOWN,\r
+ castlingRights[yyboardindex], /* [HGM] use true castling rights */\r
rf, ff, rt, ft, NULLCHAR);\r
}\r
\r
*/\r
int yyoffset()\r
{\r
- int pos = yy_c_buf_p - yy_current_buffer->yy_ch_buf;\r
+ int pos = yy_c_buf_p - YY_CURRENT_BUFFER->yy_ch_buf;\r
\r
- return(ftell(yy_current_buffer->yy_input_file) -\r
+ return(ftell(YY_CURRENT_BUFFER->yy_input_file) -\r
yy_n_chars + pos);\r
}\r
\r
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