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pgn fen tag support #7

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pgn fen tag support #7

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2ee0296
initial support for pgn fen tag
Jul 23, 2012
52220d4
typo
binboavetonik Jul 23, 2012
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50 changes: 50 additions & 0 deletions index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -229,6 +229,56 @@ <h1>9) Middle Game Demo</h1>
Bc5+ 28. Qf2 Qc1+ 29. Ne1 Qxe1# 0-1
</pre>
</div>

<div id="game10">
<h1>10) PGN with FEN 1</h1>
<div>
<a class="back" href="#">Back</a>
<a class="next" href="#">Next</a>
<a class="flip" href="#">Flip</a>
</div>
<div id="board10" class="board"></div>
<p class="annot"></p>
<pre id="pgn-with-fen-1">
[Event "Gausdal"]
[Site "?"]
[Date "1982.??.??"]
[Round "?"]
[White "Akesson"]
[Black "Dlugy"]
[Result "0-1"]
[Annotator "T4Z"]
[SetUp "1"]
[FEN "1rr3k1/5p1p/1q4p1/p2pPP2/1pb2RP1/1Pn3NP/PK1Q2B1/2R5 b - - 0 1"]

1... Nxa2 2. Kxa2 Bxb3 3. Kxb3 a4+ 4. Kb2 a3+ 5. Kb3 Rc3+ 6. Rxc3 bxc3+ 7. Kxc3 Qc5+ 8. Kd3 Rb3+ 9. Ke2 Rb2 0-1
</pre>
</div>
<div id="game11">
<h1>11) PGN with FEN 2</h1>
<div>
<a class="back" href="#">Back</a>
<a class="next" href="#">Next</a>
<a class="flip" href="#">Flip</a>
</div>
<div id="board11" class="board"></div>
<p class="annot"></p>
<pre id="pgn-with-fen-2">
[Event "Wijk aan Zee"]
[Site "?"]
[Date "1989.??.??"]
[Round "?"]
[White "Kujf"]
[Black "Hodgson"]
[Result "0-1"]
[Annotator "Tv3A"]
[SetUp "1"]
[FEN "2krr3/pppn1ppp/6b1/n2P4/1q4P1/5P1N/PP1QB2P/1NKR3R b - - 0 1"]

1... Qb3 2. Bd3 Qxa2 3. Qb4 Re2 4. Bxe2 Nb3+ 5. Qxb3 Qxb3 0-1
</pre>
</div>

</div>
</body>
</html>
3 changes: 2 additions & 1 deletion javascripts/app.js
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Original file line number Diff line number Diff line change
Expand Up @@ -33,5 +33,6 @@ jQuery(function($) {
loadChessGame( '#game9', { pgn : $('#middle-game').html() }, function(chess) {
chess.transitionTo(25);
});

loadChessGame( '#game10', { pgn : $('#pgn-with-fen-1').html() } );
loadChessGame( '#game11', { pgn : $('#pgn-with-fen-2').html() } );
});
36 changes: 32 additions & 4 deletions javascripts/jchess-0.1.0.js
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Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,12 @@ jQuery.eachWithContext = function(context, object, callback) {

// If pgn was passed in, parse it
if (this.settings.pgn) this.parsePGN(this.settings.pgn);

/* if header has a FEN tag then setup board again */
if(this.game.header.FEN) {
// this.setUpBoard( this.parseFEN( this.game.header.FEN) );
console.log("setting the board for FEN " + this.game.header.FEN);
this.settings.fen = this.game.header.FEN;
};
this.setUpBoard( this.parseFEN( this.settings.fen ) );
this.writeBoard();
},
Expand Down Expand Up @@ -269,21 +274,44 @@ jQuery.eachWithContext = function(context, object, callback) {
var result = re.exec(pgn);
this.game.header[headers[i]] = (result == null) ? "" : result[1];
}

re_fen = new RegExp('[Ff][Ee][Nn] "([^"]*)"]');
console.log(re_fen);
console.log(pgn);
console.log(re_fen.exec(pgn));
var fen_result = re_fen.exec(pgn);
if (fen_result) { this.game.header["FEN"] = fen_result[1];
console.log("fen result " + this.parseFEN(fen_result[1]));
this.setUpBoard( this.parseFEN( fen_result[1]));
this.clearBoard();
}

// Find the body
this.game.body = /(1\. ?(N[acfh]3|[abcdefgh][34]).*)/m.exec(pgn)[1];
// this.game.body = /(1\. ?(N[acfh]3|[abcdefgh][34]).*)/m.exec(pgn)[1];
/* not sure from the regexp */
this.game.body = /(\d{1,3}(\.[^.[0-9A-Z?].*|\.\.\. .*))/m.exec(pgn)[1];
console.log(this.game.body);

var first_move = 0; // if game is setup from the fen and starts with black
if((/^\d{1,3}\.\.\. /).test(this.game.body)) {
console.log("player black")
first_move = 1;
}

// Remove numbers, remove result
this.game.body = this.game.body.replace(new RegExp("1-0|1/2-1/2|0-1"), '');
this.game.body = this.game.body.replace(/^\d+\.+/, '');
this.game.body = this.game.body.replace(/\s\d+\.+/g, ' ');

var moves = $.trim(this.game.body).split(/\s+/);
// console.log(moves);
console.log(moves);
console.log(this.game.body);

// This must be a separate variable from i, since annotations don't
// count as moves.
var move_number = 0;


$.eachWithContext(this, moves, function(i, move) {
if ( /annotation-\d+/.test(move) ) {
this.game.annotations[move_number] = this.game.raw_annotations.shift();
Expand All @@ -293,7 +321,7 @@ jQuery.eachWithContext = function(context, object, callback) {
this.game.moves[move_number] = move;

// console.log("Processing move: " + move_number + '.' + move);
var player = (move_number % 2 == 0) ? 'w' : 'b';
var player = ((move_number + first_move) % 2 == 0) ? 'w' : 'b';

// If the move was to castle
if ( this.patterns.castle_queenside.test(move) ) {
Expand Down