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RetroShare/plugins/qcheckers_plugin/pdn.cc
defnax 87344de7d4 added for plugins own dir 
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@1850 b45a01b8-16f6-495d-af2f-9b41ad6348cc
2009-11-28 14:21:11 +00:00

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/***************************************************************************
* Copyright (C) 2002-2003 Andi Peredri *
* andi@ukr.net *
* Copyright (C) 2004-2005 Artur Wiebe *
* wibix@gmx.de *
* *
* 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 02111-1307, USA. *
***************************************************************************/
#include <QFile>
#include <QTextStream>
#include <QProgressDialog>
#include <QDebug>
#include "checkers.h"
#include "pdn.h"
#define PLAYER true
#define COMPUTER false
#define END_OF_MOVELINE "@."
Pdn::Pdn()
{
}
Pdn::~Pdn()
{
qDeleteAll(m_database);
m_database.clear();
}
bool Pdn::open(const QString& filename, QWidget* parent,
const QString& label, QString& text_to_log)
{
qDeleteAll(m_database);
m_database.clear();
QFile file(filename);
if(!file.open(QFile::ReadOnly)) return false;
QTextStream ts(&file);
QString str1, str2;
QProgressDialog progress(parent);
progress.setModal(true);
progress.setLabelText(label);
progress.setRange(0, file.size());
progress.setMinimumDuration(0);
unsigned int line_nr = 1;
unsigned int game_started = 1;
bool in_tags = false;
while(!ts.atEnd()) {
str1 = ts.readLine().trimmed();
if(ts.atEnd())
str2 += str1;
if((str1.length() && str1[0]=='[') || ts.atEnd()) {
if(!in_tags) {
// tags begin again, so a game is ended.
if(str2.length()) {
if((m_database.count()%10)==0)
progress.setValue(file.pos());
QString log_txt;
PdnGame* game = new PdnGame(str2, log_txt);
m_database.append(game);
if(log_txt.length()) {
text_to_log
+= QString("%1. game begins at line %2:\n")
.arg(m_database.count())
.arg(game_started);
text_to_log += log_txt;
}
game_started = line_nr;
str2="";
}
in_tags = true;
}
} else {
if(in_tags)
in_tags = false;
}
str2.append(str1+"\n");
if(progress.wasCanceled())
break;
line_nr++;
}
file.close();
return true;
}
bool Pdn::save(const QString& filename)
{
QFile file(filename);
if(!file.open(QFile::WriteOnly))
return false;
QTextStream ts(&file);
foreach(PdnGame* game, m_database) {
ts << game->toString() << endl << endl;
}
file.close();
return true;
}
PdnGame* Pdn::newGame()
{
QString log_txt; // here: ignore TODO
PdnGame* game = new PdnGame("", log_txt);
m_database.append(game);
return game;
}
/***************************************************************************
* *
* *
***************************************************************************/
PdnMove::PdnMove(QString line)
{
if(line[0]=='{') {
qDebug("a move must not begin with a comment.");
return;
}
// first move.
m_first = line.section(' ', 0, 0);
line = line.mid(m_first.length()).trimmed();
// check for a first comment.
if(line[0]=='{') {
int end = line.indexOf('}', 1);
if(end>=0) {
m_comfirst = line.mid(1, end-1);
line.remove(0, end+1);
line = line.trimmed();
} else
qDebug("no comment ending of the first comment.");
}
// second move.
m_second = line.section(' ', 0, 0);
line = line.mid(m_second.length()).trimmed();
// check for a second comment.
if(line[0]=='{') {
int end = line.indexOf('}', 1);
if(end>=0)
m_comsecond = line.mid(1, end-1);
else
qDebug("no comment ending of the second comment.");
}
}
/***************************************************************************
* *
* *
***************************************************************************/
PdnGame::PdnGame(const QString& game_string, QString& log_txt)
{
white = PLAYER;
for(int i=0; i<12; i++)
board[i]=MAN2;
for(int i=20; i<32; i++)
board[i]=MAN1;
if(!parse(game_string, log_txt)) {
qDebug(" errors occured while processing game."); // TODO
}
}
PdnGame::~PdnGame()
{
qDeleteAll(m_moves);
m_moves.clear();
}
QString PdnGame::get(Tag tag) const
{
switch(tag) {
case Date: return pdnDate;
case Site: return pdnSite;
case Type: return pdnType;
case Event: return pdnEvent;
case Round: return pdnRound;
case White: return pdnWhite;
case Black: return pdnBlack;
default: return pdnResult;
}
}
void PdnGame::set(Tag tag, const QString& string)
{
switch(tag) {
case Date: pdnDate=string; break;
case Site: pdnSite=string; break;
case Type: pdnType=string; break;
case Event: pdnEvent=string;break;
case Round: pdnRound=string;break;
case White: pdnWhite=string;break;
case Black: pdnBlack=string;break;
default: pdnResult=string;
}
}
bool PdnGame::parse_moves(const QString& line)
{
qDeleteAll(m_moves);
m_moves.clear();
QStringList list = line.split(' ');
QString current_move;
int move_num = 0;
bool in_comment = false;
foreach(QString str, list) {
if(str.startsWith("{"))
in_comment = true;
if(str.endsWith("}"))
in_comment = false;
if(str.endsWith(".") && !in_comment) {
if(str!=END_OF_MOVELINE) {
if((move_num+1) != str.mid(0, str.length()-1).toInt()) {
qDebug() << "Move num expected:" << move_num+1
<< "received:" << str;
return false;
}
move_num++;
}
current_move = current_move.trimmed();
if(current_move.length()) {
m_moves.append(new PdnMove(current_move));
current_move = "";
}
continue;
}
if(str.isEmpty())
current_move += " ";
else
current_move += str + " ";
}
return true;
}
bool PdnGame::parse(const QString& pdngame, QString& log_txt)
{
QString fen;
QString moves;
int num = pdngame.count("\n"); // Number of lines
for(int i=0; i<=num; i++) {
QString line = pdngame.section('\n',i ,i);
if(!line.length())
continue;
if(line.startsWith("[")) {
line.remove(0, 1);
line = line.trimmed();
if(line.startsWith("GameType")) pdnType=line.section('"',1,1);
else if(line.startsWith("FEN")) fen=line.section('"',1,1);
else if(line.startsWith("Date")) pdnDate=line.section('"',1,1);
else if(line.startsWith("Site")) pdnSite=line.section('"',1,1);
else if(line.startsWith("Event")) pdnEvent=line.section('"',1,1);
else if(line.startsWith("Round")) pdnRound=line.section('"',1,1);
else if(line.startsWith("White")) pdnWhite=line.section('"',1,1);
else if(line.startsWith("Black")) pdnBlack=line.section('"',1,1);
else if(line.startsWith("Result")) pdnResult=line.section('"',1,1);
else ; // Skip other unsupported tags
} else {
moves += " " + line;
}
}
// parse move section.
if(moves.endsWith(pdnResult))
moves.truncate(moves.length()-pdnResult.length());
else {
log_txt += " +Different result at the end of the movelist:\n"
+ QString(" \"%1\" expected, got \"%2\"\n")
.arg(pdnResult)
.arg(moves.right(pdnResult.length()));
// need to remove the incorrect result.
if(moves.endsWith(" *")) {
log_txt += " => Ignoring \" *\" from the end.\n";
moves.truncate(moves.length()-2);
} else {
int pos = moves.lastIndexOf('-') - 1;
bool skip_ws = true;
for(int i=pos; i>=0; i--) {
if(moves[i]==' ') {
if(!skip_ws) {
log_txt += " => Ignoring \""
+ moves.right(moves.length()-i-1)
+ "\" from the end.\n",
moves.truncate(i+1);
break;
}
} else {
skip_ws = false;
}
}
}
}
if(!parse_moves(moves+" "END_OF_MOVELINE)) { // :)
log_txt += "\n +parsing moves failed.";
return false;
}
// Translation of the GameType tag
switch(pdnType.toInt()) {
case ENGLISH:
case RUSSIAN:
break;
default:
// log_txt += "\n +setting game type to english.";
pdnType.setNum(ENGLISH);
break;
}
// Parsing of the Forsyth-Edwards Notation (FEN) tag
if(fen.isNull())
return true;
fen=fen.trimmed();
for(int i=fen.indexOf(" "); i!=-1; i=fen.indexOf(" "))
fen=fen.remove(i,1);
if(fen.startsWith("W:W"))
white=PLAYER;
else if(fen.startsWith("B:W"))
white=COMPUTER;
else
return false;
QString string = fen.mid(3).section(":B",0,0);
if(!parse(string, white))
return false;
string=fen.section(":B",1,1);
if(string.endsWith("."))
string.truncate(string.length()-1);
if(!parse(string, !white))
return false;
return true;
}
bool PdnGame::parse(const QString& str, bool side)
{
QString notation;
if(pdnType.toInt() == ENGLISH)
notation=QString(ENOTATION);
else
notation=QString(RNOTATION);
QStringList sections = str.split(",");
foreach(QString pos, sections) {
bool king=false;
if(pos.startsWith("K")) {
pos=pos.remove(0,1);
king=true;
}
if(pos.length()==1)
pos.append(' ');
if(pos.length()!=2)
return false;
int index = notation.indexOf(pos);
if(index%2)
index=notation.indexOf(pos,index+1);
if(index == -1)
return false;
if(white==COMPUTER)
index=62-index;
if(side==PLAYER)
board[index/2]=(king ? KING1 : MAN1);
else
board[index/2]=(king ? KING2 : MAN2);
}
return true;
}
PdnMove* PdnGame::getMove(int i)
{
if(i<m_moves.count()) {
return m_moves.at(i);
}
// TODO - do we need this?
if(i>m_moves.count())
qDebug("PdnGame::getMove(%u) m_moves.count()=%u",
i, m_moves.count());
PdnMove* m = new PdnMove("");
m_moves.append(m);
return m;
}
QString PdnGame::toString()
{
QString fen;
QString moves;
/*
* fen
*/
if(!movesCount()) {
qDebug("FEN tag with lots of errors.");
QString string1;
QString string2;
QString notation;
if(pdnType.toInt() == ENGLISH)
notation=QString(ENOTATION);
else
notation=QString(RNOTATION);
for(int i=0; i<32; i++) {
int index=i*2;
if(white==COMPUTER) index=62-index;
QString pos;
switch(board[i]) {
case KING1:
pos.append('K');
case MAN1:
pos.append(notation.mid(index,2).trimmed());
if(string1.length()) string1.append(',');
string1.append(pos);
break;
case KING2:
pos.append('K');
case MAN2:
pos.append(notation.mid(index,2).trimmed());
if(string2.length()) string2.append(',');
string2.append(pos);
default:
break;
}
}
if(white==PLAYER)
fen.append("W:W"+string1+":B"+string2+".");
else
fen.append("B:W"+string2+":B"+string1+".");
}
/*
* moves
*/
unsigned int count = 1;
foreach(PdnMove* move, m_moves) {
moves += QString("%1. %2 %3%4%5\n")
.arg(count)
.arg(move->m_first)
.arg(move->m_comfirst.length() ? "{"+move->m_comfirst+"} " : "")
.arg(move->m_second)
.arg(move->m_comsecond.length() ? " {"+move->m_comsecond+"}" : "");
count++;
}
/*
* create format and write tags+fen+moves.
*/
QString str;
if(pdnEvent.length()) str.append("[Event \""+pdnEvent+"\"]\n");
if(pdnSite.length()) str.append("[Site \"" +pdnSite +"\"]\n");
if(pdnDate.length()) str.append("[Date \"" +pdnDate +"\"]\n");
if(pdnRound.length()) str.append("[Round \""+pdnRound+"\"]\n");
if(pdnWhite.length()) str.append("[White \""+pdnWhite+"\"]\n");
if(pdnBlack.length()) str.append("[Black \""+pdnBlack+"\"]\n");
if(fen.length()) {
str.append("[SetUp \"1\"]\n");
str.append("[FEN \""+fen+"\"]\n\n");
}
str.append("[Result \""+pdnResult+"\"]\n");
str.append("[GameType \""+pdnType+"\"]\n");
str.append(moves);
str.append(pdnResult+"\n");
return str;
}
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