chess.js - npm Package Compare versions
Comparing version 0.10.1 to 0.10.2
103
chess.js
@@ -685,2 +685,7 @@ /* | ||
| // parses all of the decorators out of a SAN string | ||
| function stripped_san(move) { | ||
| return move.replace(/=/,'').replace(/[+#]?[?!]*$/,''); | ||
| } | ||
| function attacked(color, square) { | ||
@@ -1057,2 +1062,41 @@ for (var i = SQUARES.a8; i <= SQUARES.h1; i++) { | ||
| // convert a move from Standard Algebraic Notation (SAN) to 0x88 coordinates | ||
| function move_from_san(move, sloppy) { | ||
| // strip off any move decorations: e.g Nf3+?! | ||
| var clean_move = stripped_san(move); | ||
| // if we're using the sloppy parser run a regex to grab piece, to, and from | ||
| // this should parse invalid SAN like: Pe2-e4, Rc1c4, Qf3xf7 | ||
| if (sloppy) { | ||
| var matches = clean_move.match(/([pnbrqkPNBRQK])?([a-h][1-8])x?-?([a-h][1-8])([qrbnQRBN])?/); | ||
| if (matches) { | ||
| var piece = matches[1]; | ||
| var from = matches[2]; | ||
| var to = matches[3]; | ||
| var promotion = matches[4]; | ||
| } | ||
| } | ||
| var moves = generate_moves(); | ||
| for (var i = 0, len = moves.length; i < len; i++) { | ||
| // try the strict parser first, then the sloppy parser if requested | ||
| // by the user | ||
| if ((clean_move === stripped_san(move_to_san(moves[i]))) || | ||
| (sloppy && clean_move === stripped_san(move_to_san(moves[i], true)))) { | ||
| return moves[i]; | ||
| } else { | ||
| if (matches && | ||
| (!piece || piece.toLowerCase() == moves[i].piece) && | ||
| SQUARES[from] == moves[i].from && | ||
| SQUARES[to] == moves[i].to && | ||
| (!promotion || promotion.toLowerCase() == moves[i].promotion)) { | ||
| return moves[i]; | ||
| } | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
| /***************************************************************************** | ||
@@ -1356,29 +1400,2 @@ * UTILITY FUNCTIONS | ||
| /* convert a move from Standard Algebraic Notation (SAN) to 0x88 | ||
| * coordinates | ||
| */ | ||
| function move_from_san(move) { | ||
| /* strip off any move decorations: e.g Nf3+?! */ | ||
| var move_replaced = move.replace(/=/,'').replace(/[+#]?[?!]*$/,''); | ||
| var moves = generate_moves(); | ||
| for (var i = 0, len = moves.length; i < len; i++) { | ||
| // try the strict parser first, then the sloppy parser if requested | ||
| // by the user | ||
| if ((move_replaced === | ||
| move_to_san(moves[i]).replace(/=/,'').replace(/[+#]?[?!]*$/,'')) || | ||
| (sloppy && | ||
| move_replaced === | ||
| move_to_san(moves[i], sloppy).replace(/=/,'').replace(/[+#]?[?!]*$/,''))) { | ||
| return moves[i]; | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
| function get_move_obj(move) { | ||
| return move_from_san(trim(move)); | ||
| } | ||
| function has_keys(object) { | ||
@@ -1414,5 +1431,5 @@ for (var key in object) { | ||
| options.newline_char : '\r?\n'; | ||
| var regex = new RegExp('^(\\[(.|' + mask(newline_char) + ')*\\])' + | ||
| '(' + mask(newline_char) + ')*' + | ||
| '1.(' + mask(newline_char) + '|.)*$', 'g'); | ||
| var regex = new RegExp('^(\\[(.|' + mask(newline_char) + ')*\\])' + | ||
| '(' + mask(newline_char) + ')*' + | ||
| '1.(' + mask(newline_char) + '|.)*$', 'g'); | ||
@@ -1427,3 +1444,3 @@ /* get header part of the PGN file */ | ||
| reset(); | ||
| reset(); | ||
@@ -1473,3 +1490,3 @@ /* parse PGN header */ | ||
| for (var half_move = 0; half_move < moves.length - 1; half_move++) { | ||
| move = get_move_obj(moves[half_move]); | ||
| move = move_from_san(moves[half_move], sloppy); | ||
@@ -1494,3 +1511,3 @@ /* move not possible! (don't clear the board to examine to show the | ||
| else { | ||
| move = get_move_obj(move); | ||
| move = move_from_san(move, sloppy); | ||
| if (move == null) { | ||
@@ -1534,22 +1551,8 @@ return false; | ||
| var move_obj = null; | ||
| var moves = generate_moves(); | ||
| if (typeof move === 'string') { | ||
| /* convert the move string to a move object */ | ||
| /* strip off any move decorations: e.g Nf3+?! */ | ||
| var move_replaced = move.replace(/=/,'').replace(/[+#]?[?!]*$/,''); | ||
| for (var i = 0, len = moves.length; i < len; i++) { | ||
| move_obj = move_from_san(move, sloppy); | ||
| } else if (typeof move === 'object') { | ||
| var moves = generate_moves(); | ||
| // try the strict parser first, then the sloppy parser if requested | ||
| // by the user | ||
| if ((move_replaced === | ||
| move_to_san(moves[i]).replace(/=/,'').replace(/[+#]?[?!]*$/,'')) || | ||
| (sloppy && | ||
| move_replaced === | ||
| move_to_san(moves[i], sloppy).replace(/=/,'').replace(/[+#]?[?!]*$/,''))) { | ||
| move_obj = moves[i]; | ||
| break; | ||
| } | ||
| } | ||
| } else if (typeof move === 'object') { | ||
| /* convert the pretty move object to an ugly move object */ | ||
@@ -1556,0 +1559,0 @@ for (var i = 0, len = moves.length; i < len; i++) { |
@@ -6,2 +6,2 @@ /* @license | ||
| */ | ||
| var Chess=function(r){function e(){fr=new Array(128),ar={w:Q,b:Q},lr=K,ur={w:0,b:0},pr=Q,sr=0,cr=1,vr=[],gr={},a(i())}function n(){t(F)}function t(r){var n=r.split(/\s+/),t=n[0],f=0;if(!o(r).valid)return!1;e();for(var l=0;l<t.length;l++){var p=t.charAt(l);if("/"===p)f+=8;else if(R(p))f+=parseInt(p,10);else{var s="a">p?K:D;u({type:p.toLowerCase(),color:s},w(f)),f++}}return lr=n[1],n[2].indexOf("K")>-1&&(ur.w|=Y.KSIDE_CASTLE),n[2].indexOf("Q")>-1&&(ur.w|=Y.QSIDE_CASTLE),n[2].indexOf("k")>-1&&(ur.b|=Y.KSIDE_CASTLE),n[2].indexOf("q")>-1&&(ur.b|=Y.QSIDE_CASTLE),pr="-"===n[3]?Q:or[n[3]],sr=parseInt(n[4],10),cr=parseInt(n[5],10),a(i()),!0}function o(r){var e={0:"No errors.",1:"FEN string must contain six space-delimited fields.",2:"6th field (move number) must be a positive integer.",3:"5th field (half move counter) must be a non-negative integer.",4:"4th field (en-passant square) is invalid.",5:"3rd field (castling availability) is invalid.",6:"2nd field (side to move) is invalid.",7:"1st field (piece positions) does not contain 8 '/'-delimited rows.",8:"1st field (piece positions) is invalid [consecutive numbers].",9:"1st field (piece positions) is invalid [invalid piece].",10:"1st field (piece positions) is invalid [row too large].",11:"Illegal en-passant square"},n=r.split(/\s+/);if(6!==n.length)return{valid:!1,error_number:1,error:e[1]};if(isNaN(n[5])||parseInt(n[5],10)<=0)return{valid:!1,error_number:2,error:e[2]};if(isNaN(n[4])||parseInt(n[4],10)<0)return{valid:!1,error_number:3,error:e[3]};if(!/^(-|[abcdefgh][36])$/.test(n[3]))return{valid:!1,error_number:4,error:e[4]};if(!/^(KQ?k?q?|Qk?q?|kq?|q|-)$/.test(n[2]))return{valid:!1,error_number:5,error:e[5]};if(!/^(w|b)$/.test(n[1]))return{valid:!1,error_number:6,error:e[6]};var t=n[0].split("/");if(8!==t.length)return{valid:!1,error_number:7,error:e[7]};for(var o=0;o<t.length;o++){for(var i=0,f=!1,a=0;a<t[o].length;a++)if(isNaN(t[o][a])){if(!/^[prnbqkPRNBQK]$/.test(t[o][a]))return{valid:!1,error_number:9,error:e[9]};i+=1,f=!1}else{if(f)return{valid:!1,error_number:8,error:e[8]};i+=parseInt(t[o][a],10),f=!0}if(8!==i)return{valid:!1,error_number:10,error:e[10]}}return"3"==n[3][1]&&"w"==n[1]||"6"==n[3][1]&&"b"==n[1]?{valid:!1,error_number:11,error:e[11]}:{valid:!0,error_number:0,error:e[0]}}function i(){for(var r=0,e="",n=or.a8;n<=or.h1;n++){if(null==fr[n])r++;else{r>0&&(e+=r,r=0);var t=fr[n].color,o=fr[n].type;e+=t===K?o.toUpperCase():o.toLowerCase()}n+1&136&&(r>0&&(e+=r),n!==or.h1&&(e+="/"),r=0,n+=8)}var i="";ur[K]&Y.KSIDE_CASTLE&&(i+="K"),ur[K]&Y.QSIDE_CASTLE&&(i+="Q"),ur[D]&Y.KSIDE_CASTLE&&(i+="k"),ur[D]&Y.QSIDE_CASTLE&&(i+="q"),i=i||"-";var f=pr===Q?"-":w(pr);return[e,lr,i,f,sr,cr].join(" ")}function f(r){for(var e=0;e<r.length;e+=2)"string"==typeof r[e]&&"string"==typeof r[e+1]&&(gr[r[e]]=r[e+1]);return gr}function a(r){vr.length>0||(r!==F?(gr.SetUp="1",gr.FEN=r):(delete gr.SetUp,delete gr.FEN))}function l(r){var e=fr[or[r]];return e?{type:e.type,color:e.color}:null}function u(r,e){if(!("type"in r&&"color"in r))return!1;if(-1===G.indexOf(r.type.toLowerCase()))return!1;if(!(e in or))return!1;var n=or[e];return r.type==M&&ar[r.color]!=Q&&ar[r.color]!=n?!1:(fr[n]={type:r.type,color:r.color},r.type===M&&(ar[r.color]=n),a(i()),!0)}function p(r){var e=l(r);return fr[or[r]]=null,e&&e.type===M&&(ar[e.color]=Q),a(i()),e}function s(r,e,n,t,o){var i={color:lr,from:e,to:n,flags:t,piece:r[e].type};return o&&(i.flags|=Y.PROMOTION,i.promotion=o),r[n]?i.captured=r[n].type:t&Y.EP_CAPTURE&&(i.captured=U),i}function c(r){function e(r,e,n,t,o){if(r[n].type!==U||I(t)!==tr&&I(t)!==rr)e.push(s(r,n,t,o));else for(var i=[B,j,x,$],f=0,a=i.length;a>f;f++)e.push(s(r,n,t,o,i[f]))}var n=[],t=lr,o=L(t),i={b:nr,w:er},f=or.a8,a=or.h1,l=!1,u="undefined"!=typeof r&&"legal"in r?r.legal:!0;if("undefined"!=typeof r&&"square"in r){if(!(r.square in or))return[];f=a=or[r.square],l=!0}for(var p=f;a>=p;p++)if(136&p)p+=7;else{var c=fr[p];if(null!=c&&c.color===t)if(c.type===U){var v=p+H[t][0];if(null==fr[v]){e(fr,n,p,v,Y.NORMAL);var v=p+H[t][1];i[t]===I(p)&&null==fr[v]&&e(fr,n,p,v,Y.BIG_PAWN)}for(d=2;4>d;d++){var v=p+H[t][d];136&v||(null!=fr[v]&&fr[v].color===o?e(fr,n,p,v,Y.CAPTURE):v===pr&&e(fr,n,p,pr,Y.EP_CAPTURE))}}else for(var d=0,E=Z[c.type].length;E>d;d++)for(var b=Z[c.type][d],v=p;;){if(v+=b,136&v)break;if(null!=fr[v]){if(fr[v].color===t)break;e(fr,n,p,v,Y.CAPTURE);break}if(e(fr,n,p,v,Y.NORMAL),"n"===c.type||"k"===c.type)break}}if(!l||a===ar[t]){if(ur[t]&Y.KSIDE_CASTLE){var _=ar[t],y=_+2;null!=fr[_+1]||null!=fr[y]||g(o,ar[t])||g(o,_+1)||g(o,y)||e(fr,n,ar[t],y,Y.KSIDE_CASTLE)}if(ur[t]&Y.QSIDE_CASTLE){var _=ar[t],y=_-2;null!=fr[_-1]||null!=fr[_-2]||null!=fr[_-3]||g(o,ar[t])||g(o,_-1)||g(o,y)||e(fr,n,ar[t],y,Y.QSIDE_CASTLE)}}if(!u)return n;for(var A=[],p=0,E=n.length;E>p;p++)S(n[p]),h(t)||A.push(n[p]),m();return A}function v(r,e){var n="";if(r.flags&Y.KSIDE_CASTLE)n="O-O";else if(r.flags&Y.QSIDE_CASTLE)n="O-O-O";else{var t=C(r,e);r.piece!==U&&(n+=r.piece.toUpperCase()+t),r.flags&(Y.CAPTURE|Y.EP_CAPTURE)&&(r.piece===U&&(n+=w(r.from)[0]),n+="x"),n+=w(r.to),r.flags&Y.PROMOTION&&(n+="="+r.promotion.toUpperCase())}return S(r),d()&&(n+=E()?"#":"+"),m(),n}function g(r,e){for(var n=or.a8;n<=or.h1;n++)if(136&n)n+=7;else if(null!=fr[n]&&fr[n].color===r){var t=fr[n],o=n-e,i=o+119;if(z[i]&1<<V[t.type]){if(t.type===U){if(o>0){if(t.color===K)return!0}else if(t.color===D)return!0;continue}if("n"===t.type||"k"===t.type)return!0;for(var f=J[i],a=n+f,l=!1;a!==e;){if(null!=fr[a]){l=!0;break}a+=f}if(!l)return!0}}return!1}function h(r){return g(L(r),ar[r])}function d(){return h(lr)}function E(){return d()&&0===c().length}function b(){return!d()&&0===c().length}function _(){for(var r={},e=[],n=0,t=0,o=or.a8;o<=or.h1;o++)if(t=(t+1)%2,136&o)o+=7;else{var i=fr[o];i&&(r[i.type]=i.type in r?r[i.type]+1:1,i.type===x&&e.push(t),n++)}if(2===n)return!0;if(3===n&&(1===r[x]||1===r[$]))return!0;if(n===r[x]+2){for(var f=0,a=e.length,o=0;a>o;o++)f+=e[o];if(0===f||f===a)return!0}return!1}function y(){for(var r=[],e={},n=!1;;){var t=m();if(!t)break;r.push(t)}for(;;){var o=i().split(" ").slice(0,4).join(" ");if(e[o]=o in e?e[o]+1:1,e[o]>=3&&(n=!0),!r.length)break;S(r.pop())}return n}function A(r){vr.push({move:r,kings:{b:ar.b,w:ar.w},turn:lr,castling:{b:ur.b,w:ur.w},ep_square:pr,half_moves:sr,move_number:cr})}function S(r){var e=lr,n=L(e);if(A(r),fr[r.to]=fr[r.from],fr[r.from]=null,r.flags&Y.EP_CAPTURE&&(lr===D?fr[r.to-16]=null:fr[r.to+16]=null),r.flags&Y.PROMOTION&&(fr[r.to]={type:r.promotion,color:e}),fr[r.to].type===M){if(ar[fr[r.to].color]=r.to,r.flags&Y.KSIDE_CASTLE){var t=r.to-1,o=r.to+1;fr[t]=fr[o],fr[o]=null}else if(r.flags&Y.QSIDE_CASTLE){var t=r.to+1,o=r.to-2;fr[t]=fr[o],fr[o]=null}ur[e]=""}if(ur[e])for(var i=0,f=ir[e].length;f>i;i++)if(r.from===ir[e][i].square&&ur[e]&ir[e][i].flag){ur[e]^=ir[e][i].flag;break}if(ur[n])for(var i=0,f=ir[n].length;f>i;i++)if(r.to===ir[n][i].square&&ur[n]&ir[n][i].flag){ur[n]^=ir[n][i].flag;break}pr=r.flags&Y.BIG_PAWN?"b"===lr?r.to-16:r.to+16:Q,r.piece===U?sr=0:r.flags&(Y.CAPTURE|Y.EP_CAPTURE)?sr=0:sr++,lr===D&&cr++,lr=L(lr)}function m(){var r=vr.pop();if(null==r)return null;var e=r.move;ar=r.kings,lr=r.turn,ur=r.castling,pr=r.ep_square,sr=r.half_moves,cr=r.move_number;var n=lr,t=L(lr);if(fr[e.from]=fr[e.to],fr[e.from].type=e.piece,fr[e.to]=null,e.flags&Y.CAPTURE)fr[e.to]={type:e.captured,color:t};else if(e.flags&Y.EP_CAPTURE){var o;o=n===D?e.to-16:e.to+16,fr[o]={type:U,color:t}}if(e.flags&(Y.KSIDE_CASTLE|Y.QSIDE_CASTLE)){var i,f;e.flags&Y.KSIDE_CASTLE?(i=e.to+1,f=e.to-1):e.flags&Y.QSIDE_CASTLE&&(i=e.to-2,f=e.to+1),fr[i]=fr[f],fr[f]=null}return e}function C(r,e){for(var 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";else{var n=fr[e].type,t=fr[e].color,o=t===K?n.toUpperCase():n.toLowerCase();r+=" "+o+" "}e+1&136&&(r+="|\n",e+=8)}return r+=" +------------------------+\n",r+=" a b c d e f g h\n"}function I(r){return r>>4}function P(r){return 15&r}function w(r){var e=P(r),n=I(r);return"abcdefgh".substring(e,e+1)+"87654321".substring(n,n+1)}function L(r){return r===K?D:K}function R(r){return-1!=="0123456789".indexOf(r)}function O(r){var e=N(r);e.san=v(e,!1),e.to=w(e.to),e.from=w(e.from);var n="";for(var t in Y)Y[t]&e.flags&&(n+=X[t]);return e.flags=n,e}function N(r){var e=r instanceof Array?[]:{};for(var n in r)"object"==typeof n?e[n]=N(r[n]):e[n]=r[n];return e}function k(r){return r.replace(/^\s+|\s+$/g,"")}function q(r){for(var e=c({legal:!1}),n=0,t=lr,o=0,i=e.length;i>o;o++){if(S(e[o]),!h(t))if(r-1>0){var f=q(r-1);n+=f}else n++;m()}return n}var D="b",K="w",Q=-1,U="p",$="n",x="b",j="r",B="q",M="k",G="pnbrqkPNBRQK",F="rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 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r={},e=[],n=0,t=0,o=fr.a8;o<=fr.h1;o++)if(t=(t+1)%2,136&o)o+=7;else{var i=ur[o];i&&(r[i.type]=i.type in r?r[i.type]+1:1,i.type===B&&e.push(t),n++)}if(2===n)return!0;if(3===n&&(1===r[B]||1===r[j]))return!0;if(n===r[B]+2){for(var f=0,a=e.length,o=0;a>o;o++)f+=e[o];if(0===f||f===a)return!0}return!1}function m(){for(var r=[],e={},n=!1;;){var t=C();if(!t)break;r.push(t)}for(;;){var o=i().split(" ").slice(0,4).join(" ");if(e[o]=o in e?e[o]+1:1,e[o]>=3&&(n=!0),!r.length)break;S(r.pop())}return n}function A(r){hr.push({move:r,kings:{b:lr.b,w:lr.w},turn:sr,castling:{b:pr.b,w:pr.w},ep_square:cr,half_moves:vr,move_number:gr})}function S(r){var e=sr,n=N(e);if(A(r),ur[r.to]=ur[r.from],ur[r.from]=null,r.flags&er.EP_CAPTURE&&(sr===Q?ur[r.to-16]=null:ur[r.to+16]=null),r.flags&er.PROMOTION&&(ur[r.to]={type:r.promotion,color:e}),ur[r.to].type===F){if(lr[ur[r.to].color]=r.to,r.flags&er.KSIDE_CASTLE){var t=r.to-1,o=r.to+1;ur[t]=ur[o],ur[o]=null}else if(r.flags&er.QSIDE_CASTLE){var 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";else{var n=ur[e].type,t=ur[e].color,o=t===U?n.toUpperCase():n.toLowerCase();r+=" "+o+" "}e+1&136&&(r+="|\n",e+=8)}return r+=" +------------------------+\n",r+=" a b c d e f g h\n"}function P(r,e){var n=g(r);if(e){var t=n.match(/([pnbrqkPNBRQK])?([a-h][1-8])x?-?([a-h][1-8])([qrbnQRBN])?/);if(t)var o=t[1],i=t[2],f=t[3],a=t[4]}for(var u=c(),l=0,s=u.length;s>l;l++){if(n===g(v(u[l]))||e&&n===g(v(u[l],!0)))return u[l];if(!(!t||o&&o.toLowerCase()!=u[l].piece||fr[i]!=u[l].from||fr[f]!=u[l].to||a&&a.toLowerCase()!=u[l].promotion))return u[l]}return null}function w(r){return r>>4}function L(r){return 15&r}function R(r){var e=L(r),n=w(r);return"abcdefgh".substring(e,e+1)+"87654321".substring(n,n+1)}function N(r){return r===U?Q:U}function O(r){return-1!=="0123456789".indexOf(r)}function k(r){var e=q(r);e.san=v(e,!1),e.to=R(e.to),e.from=R(e.from);var n="";for(var t in er)er[t]&e.flags&&(n+=rr[t]);return e.flags=n,e}function q(r){var e=r instanceof Array?[]:{};for(var n in r)"object"==typeof 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u="undefined"!=typeof e&&"sloppy"in e?e.sloppy:!1,l="object"==typeof e&&"string"==typeof e.newline_char?e.newline_char:"\r?\n",s=new RegExp("^(\\[(.|"+o(l)+")*\\])("+o(l)+")*1.("+o(l)+"|.)*$","g"),p=r.replace(s,"$1");"["!==p[0]&&(p=""),n();var c=a(p,e);for(var v in c)f([v,c[v]]);if("1"===c.SetUp&&!("FEN"in c&&t(c.FEN)))return!1;var g=r.replace(p,"").replace(new RegExp(o(l),"g")," ");g=g.replace(/(\{[^}]+\})+?/g,"");for(var h=/(\([^\(\)]+\))+?/g;h.test(g);)g=g.replace(h,"");g=g.replace(/\d+\.(\.\.)?/g,""),g=g.replace(/\.\.\./g,""),g=g.replace(/\$\d+/g,"");var d=D(g).split(new RegExp(/\s+/));d=d.join(",").replace(/,,+/g,",").split(",");for(var E="",b=0;b<d.length-1;b++){if(E=P(d[b],u),null==E)return!1;S(E)}if(E=d[d.length-1],Z.indexOf(E)>-1)i(dr)&&"undefined"==typeof dr.Result&&f(["Result",E]);else{if(E=P(E,u),null==E)return!1;S(E)}return!0},header:function(){return f(arguments)},ascii:function(){return I()},turn:function(){return sr},move:function(r,e){var n="undefined"!=typeof e&&"sloppy"in e?e.sloppy:!1,t=null;if("string"==typeof r)t=P(r,n);else if("object"==typeof r)for(var o=c(),i=0,f=o.length;f>i;i++)if(!(r.from!==R(o[i].from)||r.to!==R(o[i].to)||"promotion"in o[i]&&r.promotion!==o[i].promotion)){t=o[i];break}if(!t)return null;var a=k(t);return S(t),a},undo:function(){var r=C();return r?k(r):null},clear:function(){return e()},put:function(r,e){return l(r,e)},get:function(r){return u(r)},remove:function(r){return s(r)},perft:function(r){return K(r)},square_color:function(r){if(r in fr){var e=fr[r];return(w(e)+L(e))%2===0?"light":"dark"}return null},history:function(r){for(var e=[],n=[],t=("undefined"!=typeof r&&"verbose"in r&&r.verbose);hr.length>0;)e.push(C());for(;e.length>0;){var o=e.pop();n.push(t?k(o):v(o)),S(o)}return n}}};"undefined"!=typeof exports&&(exports.Chess=Chess),"undefined"!=typeof define&&define(function(){return Chess}); |
| { | ||
| "name": "chess.js", | ||
| "version": "0.10.1", | ||
| "version": "0.10.2", | ||
| "description": "A Javascript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection", | ||
@@ -5,0 +5,0 @@ "author": "Jeff Hlywa <jhlywa@gmail.com> (https://github.com/jhlywa)", |
@@ -22,3 +22,3 @@ # chess.js | ||
| ```html | ||
| <script src="https://cdnjs.cloudflare.com/ajax/libs/chess.js/0.10.1/chess.js"></script> | ||
| <script src="https://cdnjs.cloudflare.com/ajax/libs/chess.js/0.10.2/chess.js"></script> | ||
| ``` | ||
@@ -281,5 +281,6 @@ | ||
| string representation of a RegExp (and should not be pre-escaped) and defaults | ||
| to `\r?\n`). Options may also contain the `sloppy` flag to handle overly | ||
| disambiguated moves (see `.move` documentation for more information). Returns | ||
| true if the PGN was parsed successfully, otherwise false. | ||
| to `\r?\n`). Options may also contain a `sloppy` flag which allows chess.js | ||
| to parse moves in various non-standard notations (see `.move` documentation | ||
| for more information). Returns true if the PGN was parsed successfully, | ||
| otherwise false. | ||
@@ -355,18 +356,26 @@ ```js | ||
| Some chess applications (e.g. Fritz and Chessbase) overly disambiguate SAN. To | ||
| handle these situations, a sloppy flag can be passed to .move to allow slightly | ||
| relaxed parsing: | ||
| An optional sloppy flag can be used to parse a variety of non-standard move | ||
| notations: | ||
| ```js | ||
| // there are two black knights in the postion below, one on c6 (pinned) and one | ||
| // one g8 | ||
| var chess = new Chess('r2qkbnr/ppp2ppp/2n5/1B2pQ2/4P3/8/PPP2PPP/RNB1K2R b KQkq - 3 7'); | ||
| // Ne7 doesn't need disambiguation because only one knight can legally move to | ||
| // e7, so chess.js will reject any attempts at disambiguation (it violates SAN | ||
| // spec) | ||
| chess.move('Nge7'); | ||
| var chess = new Chess(); | ||
| // various forms of Long Algebraic Notation | ||
| chess.move('e2e4', {sloppy: true}); | ||
| // -> { color: 'w', from: 'e2', to: 'e4', flags: 'b', piece: 'p', san: 'e4' } | ||
| chess.move('e7-e5', {sloppy: true}); | ||
| // -> { color: 'b', from: 'e7', to: 'e5', flags: 'b', piece: 'p', san: 'e5' } | ||
| chess.move('Pf2f4', {sloppy: true}); | ||
| // -> { color: 'w', from: 'f2', to: 'f4', flags: 'b', piece: 'p', san: 'f4' } | ||
| chess.move('Pe5xf4', {sloppy: true}); | ||
| // -> { color: 'b', from: 'e5', to: 'f4', flags: 'c', piece: 'p', captured: 'p', san: 'exf4' } | ||
| // correctly parses incorrectly disambiguated moves | ||
| chess = new Chess('r2qkbnr/ppp2ppp/2n5/1B2pQ2/4P3/8/PPP2PPP/RNB1K2R b KQkq - 3 7'); | ||
| chess.move('Nge7'); // Ne7 is unambiguous because the knight on c6 is pinned | ||
| // -> null | ||
| // to relax the overly disambiguation constraint, use the sloppy flag | ||
| chess.move('Nge7', {sloppy: true}); | ||
@@ -373,0 +382,0 @@ // -> { color: 'b', from: 'g8', to: 'e7', flags: 'n', piece: 'n', san: 'Ne7' } |
@@ -621,2 +621,105 @@ if (typeof require != "undefined") { | ||
| // the sloppy parser should handle lazy disambiguation (e.g. Rc1c4 below) | ||
| {pgn: [ | ||
| '1.e4 e5 2. Nf3 d5 3. Nxe5 f6 4. Bb5+ c6 5. Qh5+ Ke7', | ||
| 'Qf7+ Kd6 7. d3 Kxe5 8. Qh5+ g5 9. g3 cxb5 10. Bf4+ Ke6', | ||
| 'exd5+ Qxd5 12. Qe8+ Kf5 13. Rg1 gxf4 14. Nc3 Qc5 15. Ne4 Qxf2+', | ||
| 'Kxf2 fxg3+ 17. Rxg3 Nd7 18. Qh5+ Ke6 19. Qe8+ Kd5 20. Rg4 Rb8', | ||
| 'c4+ Kc6 22. Qe6+ Kc7 23. cxb5 Ne7 24. Rc1+ Kd8 25. Nxf6 Ra8', | ||
| 'Kf1 Rb8 27. Rc1c4 b6 28. Rc4-d4 Rb7 29. Qf7 Rc7 30. Qe8# 1-0'], | ||
| fen: '2bkQb1r/p1rnn2p/1p3N2/1P6/3R2R1/3P4/PP5P/5K2 b - - 5 30', | ||
| expect: true, | ||
| sloppy: true | ||
| }, | ||
| // sloppy parse should parse long algebraic notation | ||
| {pgn: [ | ||
| 'e2e4 d7d5 e4d5 d8d5 d2d4 g8f6 c2c4 d5d8 g1f3 c8g4 f1e2 e7e6 b1c3 f8e7', | ||
| 'c1e3 e8g8 d1b3 b8c6 a1d1 a8b8 e1g1 d8c8 h2h3 g4h5 d4d5 e6d5 c4d5 h5f3', | ||
| 'e2f3 c6e5 f3e2 a7a6 e3a7 b8a8 a7d4 e7d6 b3c2 f8e8 f2f4 e5d7 e2d3 c7c5', | ||
| 'd4f2 d6f4 c3e4 f6d5 e4d6 f4d6 d3h7'], | ||
| fen: 'r1q1r1k1/1p1n1ppB/p2b4/2pn4/8/7P/PPQ2BP1/3R1RK1 b - - 0 25', | ||
| expect: true, | ||
| sloppy: true, | ||
| }, | ||
| // sloppy parse should parse extended long algebraic notation w/ en passant | ||
| {pgn: [ | ||
| '1. d2d4 f7f5 2. b2b3 e7e6 3. c1b2 d7d5 4. g1f3 f8d6 5. e2e3 g8f6 6. b1d2', | ||
| 'e8g8 7. c2c4 c7c6 8. f1d3 b8d7 9. e1g1 f6e4 10. a1c1 g7g5 11. h2h3 d8e8 12.', | ||
| 'd3e4 d5e4 13. f3g5 e8g6 14. h3h4 h7h6 15. g5h3 d7f6 16. f2f4 e4f3 17. d2f3', | ||
| 'f6g4 18. d1e2 d6g3 19. h3f4 g6g7 20. d4d5 g7f7 21. d5e6 c8e6 22. f3e5 g4e5', | ||
| '23. b2e5 g8h7 24. h4h5 f8g8 25. e2f3 g3f4 26. e5f4 g8g4 27. g2g3 a8g8 28.', | ||
| 'c1c2 b7b5 29. c4b5 e6d5 30. f3d1 f7h5 31. c2h2 g4g3+ 32. f4g3 g8g3+ 33.', | ||
| 'g1f2 h5h2+ 34. f2e1 g3g2 35. d1d3 d5e4 36. d3d7+ h7g6 37. b5c6 g2e2+ 38.', | ||
| 'e1d1 e2a2 0-1'], | ||
| fen: '8/p2Q4/2P3kp/5p2/4b3/1P2P3/r6q/3K1R2 w - - 0 39', | ||
| expect: true, | ||
| sloppy: true | ||
| }, | ||
| // sloppy parse should parse long algebraic notation w/ underpromotions | ||
| {pgn: [ | ||
| '1. e2e4 c7c5 2. g1f3 d7d6 3. d2d4 c5d4 4. f3d4 g8f6 5. f1d3 a7a6 6. c1e3', | ||
| 'e7e5 7. d4f5 c8f5 8. e4f5 d6d5 9. e3g5 f8e7 10. d1e2 e5e4 11. g5f6 e7f6 12.', | ||
| 'd3e4 d5e4 13. e2e4+ d8e7 14. e4e7+ f6e7 15. e1g1 e8g8 16. f1e1 e7f6 17.', | ||
| 'c2c3 b8c6 18. b1d2 a8d8 19. d2e4 f8e8 20. e1e3 c6e5 21. a1e1 e5d3 22. e4f6+', | ||
| 'g7f6 23. e3e8+ d8e8 24. e1e8+ g8g7 25. b2b4 d3e5 26. a2a4 b7b5 27. a4b5', | ||
| 'a6b5 28. e8b8 e5g4 29. b8b5 g4e5 30. b5c5 g7f8 31. b4b5 f8e7 32. f2f4 e5d7', | ||
| '33. c5c7 e7d6 34. c7c8 d7b6 35. c8c6+ d6d7 36. c6b6 h7h5 37. b6f6 h5h4 38.', | ||
| 'f6f7+ d7d6 39. f7h7 h4h3 40. h7h3 d6e7 41. b5b6 e7f6 42. h3h5 f6g7 43. b6b7', | ||
| 'g7g8 44. b7b8N g8g7 45. c3c4 g7f6 46. c4c5 f6e7 47. c5c6 e7f6 48. c6c7 f6e7', | ||
| '49. c7c8B e7d6 50. b8a6 d6e7 51. c8e6 e7f6 52. a6c5 f6g7 53. c5e4 g7f8 54.', | ||
| 'h5h8+ f8g7 55. h8g8+ g7h6 56. g8g6+ h6h7 57. e4f6+ h7h8 58. f6e4 h8h7 59.', | ||
| 'f5f6 h7g6 60. f6f7 g6h5 61. f7f8R h5h6 62. f4f5 h6h7 63. f8f7+ h7h6 64.', | ||
| 'f5f6 h6g6 65. f7g7+ g6h5 66. f6f7 h5h4 67. f7f8Q h4h5 68. f8h8# 1-0'], | ||
| fen: '7Q/6R1/4B3/7k/4N3/8/6PP/6K1 b - - 2 68', | ||
| expect: true, | ||
| sloppy: true | ||
| }, | ||
| // sloppy parse should parse abbreviated long algebraic notation | ||
| {pgn: [ | ||
| '1. d2d4 f7f5 2. Bc1g5 d7d6 3. e2e3 Nb8d7 4. c2c4 Ng8f6 5. Nb1c3 e7e5 6.', | ||
| 'd4e5 d6e5 7. g2g3 Bf8e7 8. Bf1h3 h7h6 9. Bg5f6 Nd7f6 10. Qd1d8+ Be7d8 11.', | ||
| 'Ng1f3 e5e4 12. Nf3d4 g7g6 13. e1g1 c7c5 14. Nd4b5 e8g8 15. Nb5d6 Bd8c7 16.', | ||
| 'Nd6c8 Ra8c8 17. Rf1d1 Rc8d8 18. Bh3f1 b7b6 19. Nc3d5 Nf6d5 20. c4d5 Rf8e8', | ||
| '21. Bf1b5 Re8e5 22. Bb5c6 Kg8f7 23. Kg1f1 Kf7f6 24. h2h4 g6g5 25. h4g5+', | ||
| 'h6g5 26. Kf1e2 Rd8h8 27. Rd1h1 Rh8h1 28. Ra1h1 Kf6g7 29. Rh1h5 Kg7g6 30.', | ||
| 'Rh5h8 Re5e7 31. Rh8a8 a7a5 32. Ra8a7 Kg6f6 33. Ra7b7 Kf6e5 34. Ke2d2 f5f4', | ||
| '35. g3f4+ g5f4 36. Kd2c3 f4e3 37. f2e3 Re7f7 38. Kc3c4 Ke5d6 39. a2a3 Rf7f3', | ||
| '40. b2b4 a5b4 41. a3b4 c5b4 42. Kc4b4 Rf3e3 43. Kb4c4 Re3a3 44. Kc4b4 e4e3', | ||
| '45. Bc6b5 Ra3a1 46. Kb4c3 Ra1a3+ 47. Kc3d4 Ra3b3 48. Bb5e2 Rb3b4+ 49. Kd4e3', | ||
| 'Rb4h4 50. Be2f3 Rh4h3 51. Rb7a7 Rh3f3+ 52. Ke3f3 b6b5 53. Kf3e4 Kd6c5 54.', | ||
| 'Ra7b7 Bc7b6 55. Ke4e5 b5b4 56. d5d6 b4b3 57. Rb7b6 Kc5b6 58. d6d7 Kb6c7 59.', | ||
| 'Ke5e6 1-0'], | ||
| fen: '8/2kP4/4K3/8/8/1p6/8/8 b - - 2 59', | ||
| expect: true, | ||
| sloppy: true | ||
| }, | ||
| // sloppy parse should parse extended long algebraic notation | ||
| {pgn: [ | ||
| '1. e2-e4 c7-c5 2. Ng1-f3 d7-d6 3. d2-d4 c5xd4 4. Nf3xd4 Ng8-f6 5. Bf1-d3', | ||
| 'a7-a6 6. Bc1-e3 e7-e5 7. Nd4-f5 Bc8xf5 8. e4xf5 d6-d5 9. Be3-g5 Bf8-e7 10.', | ||
| 'Qd1-e2 e5-e4 11. Bg5xf6 Be7xf6 12. Bd3xe4 d5xe4 13. Qe2xe4+ Qd8-e7 14.', | ||
| 'Qe4xe7+ Bf6xe7 15. e1-g1 e8-g8 16. Rf1-e1 Be7-f6 17. c2-c3 Nb8-c6 18.', | ||
| 'Nb1-d2 Ra8-d8 19. Nd2-e4 Rf8-e8 20. Re1-e3 Nc6-e5 21. Ra1-e1 Ne5-d3 22.', | ||
| 'Ne4xf6+ g7xf6 23. Re3xe8+ Rd8xe8 24. Re1xe8+ Kg8-g7 25. b2-b4 Nd3-e5 26.', | ||
| 'a2-a4 b7-b5 27. a4xb5 a6xb5 28. Re8-b8 Ne5-g4 29. Rb8xb5 Ng4-e5 30. Rb5-c5', | ||
| 'Kg7-f8 31. b4-b5 Kf8-e7 32. f2-f4 Ne5-d7 33. Rc5-c7 Ke7-d6 34. Rc7-c8', | ||
| 'Nd7-b6 35. Rc8-c6+ Kd6-d7 36. Rc6xb6 h7-h5 37. Rb6xf6 h5-h4 38. Rf6xf7+', | ||
| 'Kd7-d6 39. Rf7-h7 h4-h3 40. Rh7xh3 Kd6-e7 41. b5-b6 Ke7-f6 42. Rh3-h5', | ||
| 'Kf6-g7 43. b6-b7 Kg7-g8 44. b7-b8N Kg8-g7 45. c3-c4 Kg7-f6 46. c4-c5 Kf6-e7', | ||
| '47. c5-c6 Ke7-f6 48. c6-c7 Kf6-e7 49. c7-c8B Ke7-d6 50. Nb8-a6 Kd6-e7 51.', | ||
| 'Bc8-e6 Ke7-f6 52. Na6-c5 Kf6-g7 53. Nc5-e4 Kg7-f8 54. Rh5-h8+ Kf8-g7 55.', | ||
| 'Rh8-g8+ Kg7-h6 56. Rg8-g6+ Kh6-h7 57. Ne4-f6+ Kh7-h8 58. Nf6-e4 Kh8-h7 59.', | ||
| 'f5-f6 Kh7xg6 60. f6-f7 Kg6-h5 61. f7-f8R Kh5-h6 62. f4-f5 Kh6-h7 63.', | ||
| 'Rf8-f7+ Kh7-h6 64. f5-f6 Kh6-g6 65. Rf7-g7+ Kg6-h5 66. f6-f7 Kh5-h4 67.', | ||
| 'f7-f8Q Kh4-h5 68. Qf8-h8# 1-0'], | ||
| fen: '7Q/6R1/4B3/7k/4N3/8/6PP/6K1 b - - 2 68', | ||
| expect: true, | ||
| sloppy: true | ||
| }, | ||
| ]; | ||
@@ -646,2 +749,3 @@ | ||
| } | ||
| } else { | ||
@@ -740,4 +844,3 @@ /* this test should fail, so make sure it does */ | ||
| move: 'Ne7', | ||
| next: 'r2qkb1r/ppp1nppp/2n5/1B2pQ2/4P3/8/PPP2PPP/RNB1K2R w KQkq - 4 8'}, | ||
| next: 'r2qkb1r/ppp1nppp/2n5/1B2pQ2/4P3/8/PPP2PPP/RNB1K2R w KQkq - 4 8'} | ||
| ]; | ||
@@ -744,0 +847,0 @@ |
New alerts
License Policy Violation
LicenseThis package is not allowed per your license policy. Review the package's license to ensure compliance.
Found 1 instance in 1 package
Fixed alerts
License Policy Violation
LicenseThis package is not allowed per your license policy. Review the package's license to ensure compliance.
Found 1 instance in 1 package
Improved metrics
- Total package byte prevSize
- increased by4.59%
139465
- Lines of code
- increased by4.11%
2483
- Number of lines in readme file
- increased by1.64%
559
No dependency changes