--- /dev/null
+%{
+
+/*
+ * FILE: parser.y
+ *
+ * Board parser for xshogi.
+ *
+ * ------------------------------------------------------------------------
+ * xshogi is based on XBoard -- an Xt/Athena user interface for GNU Chess.
+ *
+ * Original authors: Dan Sears, Chris Sears
+ * Enhancements (Version 2.0 and following): Tim Mann
+ * Modifications to XShogi (Version 1.0): Matthias Mutz
+ * Enhancements to XShogi (Version 1.1): Matthias Mutz
+ * Modified implementation of ISS mode for XShogi: Matthias Mutz
+ * Current maintainer: Michael C. Vanier
+ *
+ * XShogi borrows its piece bitmaps from CRANES Shogi.
+ *
+ * Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts.
+ * Enhancements Copyright 1992 Free Software Foundation, Inc.
+ * Enhancements for XShogi Copyright 1993, 1994, 1995 Matthias Mutz
+ * Copyright 1998, 1999 Michael C. Vanier and the Free Software Foundation
+ *
+ * The following terms apply to Digital Equipment Corporation's copyright
+ * interest in XBoard:
+ * ------------------------------------------------------------------------
+ * All Rights Reserved
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted,
+ * provided that the above copyright notice appear in all copies and that
+ * both that copyright notice and this permission notice appear in
+ * supporting documentation, and that the name of Digital not be
+ * used in advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ *
+ * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+ * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * ------------------------------------------------------------------------
+ *
+ * This file is part of GNU shogi.
+ *
+ * GNU shogi 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.
+ *
+ * GNU shogi 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 GNU shogi; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * ------------------------------------------------------------------------
+ *
+ */
+
+#include "xshogi.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+enum { False, True };
+
+static void yyerror();
+
+static ShogiMove move_type;
+static int from_x, from_y, to_x, to_y;
+static char piece;
+
+char currentMoveString[MSG_SIZ];
+static char token[20];
+
+FILE *outfile = (FILE *)0;
+
+extern FILE *gameFileFP, *toFirstProgFP;
+extern int currentMove;
+extern char moveList[MAX_MOVES][MOVE_LEN];
+
+extern void SendToProgram(char *message, FILE *fp);
+extern void MakeMove(ShogiMove *move_type, int from_x, int from_y,
+ int to_x, int to_y);
+
+%}
+
+%start goal
+%token PROMOTE DROPS PIECE SQUARE NUMBER COMMENT COLON
+
+%union { int val; char* string; }
+
+%%
+
+ goal:
+ comment_list move_elem move_list
+ ;
+
+ comment_list:
+ | comment_list COMMENT
+ { fprintf(stderr, "%s\n", $<string>2); }
+ ;
+
+ move_list:
+ | move_list move_elem
+ ;
+
+ move_elem:
+ { strcpy(token, "number"); } number
+ { strcpy(token, "promoted"); } promoted
+ { strcpy(token, "move"); } move
+ ;
+
+ number:
+ | NUMBER { strcpy(token, "colon"); } COLON
+ ;
+
+ promoted:
+ | PROMOTE
+ ;
+
+ move:
+ SQUARE { from_x = '9' - $<string>1[0];
+ from_y = 'i' - $<string>1[1];
+ strcpy(currentMoveString,$<string>1);
+ strcpy(token, "square"); }
+ SQUARE { to_x = '9' - $<string>3[0];
+ to_y = 'i' - $<string>3[1];
+ strcat(currentMoveString,$<string>3); }
+ { move_type = NormalMove; }
+ promotion
+ {
+ SendToProgram(currentMoveString, toFirstProgFP);
+ strcpy(moveList[currentMove], currentMoveString);
+ MakeMove(&move_type, from_x, from_y, to_x, to_y);
+ }
+ |
+ PIECE { piece = $<string>1[0];
+ strcpy(currentMoveString,$<string>1);
+ strcpy(token,"'*'"); }
+ DROPS { strcat(currentMoveString,"*");
+ strcpy(token, "square"); }
+ SQUARE { to_x = '9' - $<string>5[0];
+ to_y = 'i' - $<string>5[1];
+ strcat(currentMoveString,$<string>5); }
+ {
+ move_type = (BlackOnMove(currentMove) ? BlackDrop : WhiteDrop);
+
+ switch ( piece )
+ {
+ case 'P': from_x = 81; break;
+ case 'L': from_x = 82; break;
+ case 'N': from_x = 83; break;
+ case 'S': from_x = 84; break;
+ case 'G': from_x = 85; break;
+ case 'B': from_x = 86; break;
+ case 'R': from_x = 87; break;
+ case 'K': from_x = 88; break;
+ default: from_x = -1;
+ };
+
+ from_y = from_x;
+ SendToProgram(currentMoveString, toFirstProgFP);
+ strcpy(moveList[currentMove], currentMoveString);
+ MakeMove(&move_type, from_x, from_y, to_x, to_y);
+ }
+ ;
+
+ promotion:
+ | PROMOTE
+ { move_type = (BlackOnMove(currentMove) ? BlackPromotion : WhitePromotion);
+ strcat(currentMoveString,"+"); }
+ ;
+
+%%
+
+
+
+#include "scanner.c"
+
+
+static void yyerror(char *errmsg)
+{
+ if (strlen(token) > 0)
+ {
+ fprintf(stderr, "parse error line %d column %d : %s expected\n",
+ lines, cols, token);
+ token[0] = '\0';
+ }
+ else
+ {
+ fprintf(stderr,"parse error line %d column %d : %s\n",
+ lines, cols, errmsg);
+ }
+
+ exit(-1);
+}
+
+
+void parseGameFile()
+{
+ yyin = gameFileFP;
+ outfile = stderr;
+ yyparse();
+}
+
projects / gnushogi.git / blobdiff