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Amiga MA Magazine 1998 #3
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amigamamagazinepolishissue1998.iso
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szachy
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gnu
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amyboard-3.2.pl2
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gamelist.c
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C/C++ Source or Header
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1995-05-23
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7KB
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291 lines
/*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
* ------------------------------------------------------------------------
*
* This file could well be a part of backend.c, but I prefer it this
* way.
*/
#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 *));
/* 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;
}
/* 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(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;
do {
yyboardindex = 1;
offset = yyoffset();
cm = (ChessMove) yylex();
switch (cm) {
case GNUChessGame:
case XBoardGame:
lastStart = cm;
break;
case MoveNumberOne:
switch (lastStart) {
case GNUChessGame:
break; /* ignore */
case XBoardGame:
case PGNTag:
lastStart = cm;
break; /* Already counted */
case (ChessMove) 0:
case MoveNumberOne:
if ((error = GameListNewGame(¤tListGame))) {
return(error);
}
currentListGame->number = ++gameNumber;
currentListGame->offset = offset;
lastStart = cm;
break;
default:
break; /* impossible */
}
break;
case PGNTag:
switch (lastStart) {
case GNUChessGame:
case PGNTag:
case MoveNumberOne:
case (ChessMove) 0:
if ((error = GameListNewGame(¤tListGame))) {
return(error);
}
currentListGame->number = ++gameNumber;
currentListGame->offset = offset;
lastStart = cm;
break;
case XBoardGame:
lastStart = cm;
break; /* Already counted */
default:
break; /* impossible */
}
ParsePGNTag(yy_text, ¤tListGame->gameInfo);
do {
yyboardindex = 1;
offset = yyoffset();
cm = (ChessMove) yylex();
if (cm == PGNTag) {
ParsePGNTag(yy_text, ¤tListGame->gameInfo);
}
} while (cm == PGNTag || cm == Comment);
break;
default:
break;
}
}
while (cm != (ChessMove) 0);
/* Scan gamelist and add missing event, white and black fields,
* so that the list can be displayed.
*/
for (currentListGame = (ListGame *) gameList.head;
currentListGame->node.succ;
currentListGame = (ListGame *) currentListGame->node.succ) {
if (!currentListGame->gameInfo.event &&
!StrSavePtr("Unknown", ¤tListGame->gameInfo.event)) {
return(ENOMEM);
}
if (!currentListGame->gameInfo.white &&
!StrSavePtr("Unknown", ¤tListGame->gameInfo.white)) {
return(ENOMEM);
}
if (!currentListGame->gameInfo.black &&
!StrSavePtr("Unknown", ¤tListGame->gameInfo.black)) {
return(ENOMEM);
}
if (appData.debugMode) {
fprintf(debugFP, "Parsed game number %d, offset %ld:\n",
currentListGame->number, currentListGame->offset);
PrintPGNTags(debugFP, ¤tListGame->gameInfo);
}
}
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);
}