mehrmann wb extensions
[xboard.git] / winboard-dm-beta4 / gamelist.c
diff --git a/winboard-dm-beta4/gamelist.c b/winboard-dm-beta4/gamelist.c
new file mode 100755 (executable)
index 0000000..0df36b6
--- /dev/null
@@ -0,0 +1,305 @@
+/*
+ * gamelist.c -- Functions to manage a gamelist
+ * XBoard $Id$
+ *
+ * Copyright 1995 Free Software Foundation, Inc.
+ *
+ * ------------------------------------------------------------------------
+ * This program 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.
+ *
+ * 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.
+ *
+ * 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 USA.
+ * ------------------------------------------------------------------------
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <errno.h>
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <string.h>
+#else /* not STDC_HEADERS */
+# if HAVE_STRING_H
+#  include <string.h>
+# else /* not HAVE_STRING_H */
+#  include <strings.h>
+# endif /* not HAVE_STRING_H */
+#endif /* not STDC_HEADERS */
+
+#include "common.h"
+#include "frontend.h"
+#include "backend.h"
+#include "parser.h"
+
+
+/* Variables
+ */
+List gameList;
+
+
+/* Local function prototypes
+ */
+static void GameListDeleteGame P((ListGame *));
+static ListGame *GameListCreate P((void));
+static void GameListFree P((List *));
+static int GameListNewGame P((ListGame **));
+
+/* Delete a ListGame; implies removint it from a list.
+ */
+static void GameListDeleteGame(listGame)
+    ListGame *listGame;
+{
+    if (listGame) {
+       if (listGame->gameInfo.event) free(listGame->gameInfo.event);
+       if (listGame->gameInfo.site) free(listGame->gameInfo.site);
+       if (listGame->gameInfo.date) free(listGame->gameInfo.date);
+       if (listGame->gameInfo.round) free(listGame->gameInfo.round);
+       if (listGame->gameInfo.white) free(listGame->gameInfo.white);
+       if (listGame->gameInfo.black) free(listGame->gameInfo.black);
+       if (listGame->gameInfo.fen) free(listGame->gameInfo.fen);
+       if (listGame->gameInfo.resultDetails) free(listGame->gameInfo.resultDetails);
+       if (listGame->gameInfo.timeControl) free(listGame->gameInfo.timeControl);
+       if (listGame->gameInfo.extraTags) free(listGame->gameInfo.extraTags);
+       ListNodeFree((ListNode *) listGame);
+    }
+}
+
+
+/* Free the previous list of games.
+ */
+static void GameListFree(gameList)
+    List *gameList;
+{
+    while (!ListEmpty(gameList))
+    {
+       GameListDeleteGame((ListGame *) gameList->head);
+    }
+}
+
+
+
+/* Initialize a new GameInfo structure.
+ */
+void GameListInitGameInfo(gameInfo)
+    GameInfo *gameInfo;
+{
+    gameInfo->event = NULL;
+    gameInfo->site = NULL;
+    gameInfo->date = NULL;
+    gameInfo->round = NULL;
+    gameInfo->white = NULL;
+    gameInfo->black = NULL;
+    gameInfo->result = GameUnfinished;
+    gameInfo->fen = NULL;
+    gameInfo->resultDetails = NULL;
+    gameInfo->timeControl = NULL;
+    gameInfo->extraTags = NULL;
+    gameInfo->whiteRating = -1; /* unknown */
+    gameInfo->blackRating = -1; /* unknown */
+    gameInfo->variant = VariantNormal;
+}
+
+
+/* Create empty ListGame; returns ListGame or NULL, if out of memory.
+ *
+ * Note, that the ListGame is *not* added to any list
+ */
+static ListGame *GameListCreate()
+
+{
+    ListGame *listGame;
+
+    if ((listGame = (ListGame *) ListNodeCreate(sizeof(*listGame)))) {
+       GameListInitGameInfo(&listGame->gameInfo);
+    }
+    return(listGame);
+}
+
+
+/* Creates a new game for the gamelist.
+ */
+static int GameListNewGame(listGamePtr)
+     ListGame **listGamePtr;
+{
+    if (!(*listGamePtr = (ListGame *) GameListCreate())) {
+       GameListFree(&gameList);
+       return(ENOMEM);
+    }
+    ListAddTail(&gameList, (ListNode *) *listGamePtr);
+    return(0);
+}
+
+
+/* Build the list of games in the open file f.
+ * Returns 0 for success or error number.
+ */
+int GameListBuild(f)
+    FILE *f;
+{
+    ChessMove cm, lastStart;
+    int gameNumber;
+    ListGame *currentListGame = NULL;
+    int error;
+    int offset;
+
+    GameListFree(&gameList);
+    yynewfile(f);
+    gameNumber = 0;
+
+    lastStart = (ChessMove) 0;
+    yyskipmoves = TRUE;
+    do {
+       yyboardindex = 1;
+       offset = yyoffset();
+       cm = (ChessMove) yylex();
+       switch (cm) {
+         case GNUChessGame:
+           if ((error = GameListNewGame(&currentListGame))) {
+               rewind(f);
+               yyskipmoves = FALSE;
+               return(error);
+           }
+           currentListGame->number = ++gameNumber;
+           currentListGame->offset = offset;
+           if (currentListGame->gameInfo.event != NULL) {
+               free(currentListGame->gameInfo.event);
+           }
+           currentListGame->gameInfo.event = StrSave(yy_text);
+           lastStart = cm;
+           break;
+         case XBoardGame:
+           lastStart = cm;
+           break;
+         case MoveNumberOne:
+           switch (lastStart) {
+             case GNUChessGame:
+               break;          /*  ignore  */
+             case PGNTag:
+               lastStart = cm;
+               break;          /*  Already started */
+             case (ChessMove) 0:
+             case MoveNumberOne:
+             case XBoardGame:
+               if ((error = GameListNewGame(&currentListGame))) {
+                   rewind(f);
+                   yyskipmoves = FALSE;
+                   return(error);
+               }
+               currentListGame->number = ++gameNumber;
+               currentListGame->offset = offset;
+               lastStart = cm;
+               break;
+             default:
+               break;          /*  impossible  */
+           }
+           break;
+         case PGNTag:
+           lastStart = cm;
+           if ((error = GameListNewGame(&currentListGame))) {
+               rewind(f);
+               yyskipmoves = FALSE;
+               return(error);
+           }
+           currentListGame->number = ++gameNumber;
+           currentListGame->offset = offset;
+           ParsePGNTag(yy_text, &currentListGame->gameInfo);
+           do {
+               yyboardindex = 1;
+               offset = yyoffset();
+               cm = (ChessMove) yylex();
+               if (cm == PGNTag) {
+                   ParsePGNTag(yy_text, &currentListGame->gameInfo);
+               }
+           } while (cm == PGNTag || cm == Comment);
+           break;
+         default:
+           break;
+       }
+    }
+    while (cm != (ChessMove) 0);
+
+
+    if (appData.debugMode) {
+       for (currentListGame = (ListGame *) gameList.head;
+            currentListGame->node.succ;
+            currentListGame = (ListGame *) currentListGame->node.succ) {
+
+           fprintf(debugFP, "Parsed game number %d, offset %ld:\n",
+                   currentListGame->number, currentListGame->offset);
+           PrintPGNTags(debugFP, &currentListGame->gameInfo);
+       }
+    }
+
+    rewind(f);
+    yyskipmoves = FALSE;
+    return 0;
+}
+
+
+/* Clear an existing GameInfo structure.
+ */
+void ClearGameInfo(gameInfo)
+    GameInfo *gameInfo;
+{
+    if (gameInfo->event != NULL) {
+       free(gameInfo->event);
+    }
+    if (gameInfo->site != NULL) {
+       free(gameInfo->site);
+    }
+    if (gameInfo->date != NULL) {
+       free(gameInfo->date);
+    }
+    if (gameInfo->round != NULL) {
+       free(gameInfo->round);
+    }
+    if (gameInfo->white != NULL) {
+       free(gameInfo->white);
+    }
+    if (gameInfo->black != NULL) {
+       free(gameInfo->black);
+    }
+    if (gameInfo->resultDetails != NULL) {
+       free(gameInfo->resultDetails);
+    }
+    if (gameInfo->fen != NULL) {
+       free(gameInfo->fen);
+    }
+    if (gameInfo->timeControl != NULL) {
+       free(gameInfo->timeControl);
+    }
+    if (gameInfo->extraTags != NULL) {
+       free(gameInfo->extraTags);
+    }
+
+    GameListInitGameInfo(gameInfo);
+}
+
+char *
+GameListLine(number, gameInfo)
+     int number;
+     GameInfo *gameInfo;
+{
+    char *event = (gameInfo->event && strcmp(gameInfo->event, "?") != 0) ?
+                    gameInfo->event : gameInfo->site ? gameInfo->site : "?";
+    char *white = gameInfo->white ? gameInfo->white : "?";
+    char *black = gameInfo->black ? gameInfo->black : "?";
+    char *date = gameInfo->date ? gameInfo->date : "?";
+    int len = 10 + strlen(event) + 2 + strlen(white) + 1 + 
+      strlen(black) + 11 + strlen(date) + 1;
+    char *ret = (char *) malloc(len);
+    sprintf(ret, "%d. %s, %s-%s, %s, %s",
+           number, event, white, black, PGNResult(gameInfo->result), date);
+    return ret;
+}
+