diff --git a/README.md b/README.md index 5e2d2dc6..8336b3d1 100644 --- a/README.md +++ b/README.md @@ -1,12 +1,12 @@ # QRCode.js -QRCode.js is javascript library for making QRCode. QRCode.js supports Cross-browser with HTML5 Canvas and table tag in DOM. +QRCode.js is a JavaScript library for generating QR codes. QRCode.js supports cross-browser compatibility with HTML5 Canvas and table tag in the DOM. QRCode.js has no dependencies. ## Basic Usages ```
``` @@ -16,12 +16,13 @@ or with some options
``` @@ -34,13 +35,10 @@ qrcode.makeCode("http://naver.com"); // make another code. ``` ## Browser Compatibility -IE6~10, Chrome, Firefox, Safari, Opera, Mobile Safari, Android, Windows Mobile, ETC. +IE 6-10, Chrome, Firefox, Safari, Opera, Mobile Safari, Android, Windows Mobile, etc. ## License MIT License ## Contact twitter @davidshimjs - -[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/davidshimjs/qrcodejs/trend.png)](https://bitdeli.com/free "Bitdeli Badge") - diff --git a/qrcode.js b/qrcode.js index 5507c154..466d85f8 100644 --- a/qrcode.js +++ b/qrcode.js @@ -3,7 +3,7 @@ * - Using the 'QRCode for Javascript library' * - Fixed dataset of 'QRCode for Javascript library' for support full-spec. * - this library has no dependencies. - * + * * @author davidshimjs * @see http://www.d-project.com/ * @see http://jeromeetienne.github.com/jquery-qrcode/ @@ -21,12 +21,12 @@ var QRCode; // Licensed under the MIT license: // http://www.opensource.org/licenses/mit-license.php // - // The word "QR Code" is registered trademark of + // The word "QR Code" is registered trademark of // DENSO WAVE INCORPORATED // http://www.denso-wave.com/qrcode/faqpatent-e.html // //--------------------------------------------------------------------- - function QR8bitByte(data) { + function QR8bitByte(data, useUtf8Bom = true) { this.mode = QRMode.MODE_8BIT_BYTE; this.data = data; this.parsedData = []; @@ -57,10 +57,11 @@ var QRCode; this.parsedData = Array.prototype.concat.apply([], this.parsedData); - if (this.parsedData.length != this.data.length) { - this.parsedData.unshift(191); - this.parsedData.unshift(187); - this.parsedData.unshift(239); + if (useUtf8Bom && this.parsedData.length != this.data.length) { + // prefix UTF-8 "byte-order-mark", https://en.wikipedia.org/wiki/Byte_order_mark#UTF-8 + this.parsedData.unshift(0xBF); + this.parsedData.unshift(0xBB); + this.parsedData.unshift(0xEF); } } @@ -75,16 +76,17 @@ var QRCode; } }; - function QRCodeModel(typeNumber, errorCorrectLevel) { + function QRCodeModel(typeNumber, errorCorrectLevel, useUtf8Bom = true) { this.typeNumber = typeNumber; this.errorCorrectLevel = errorCorrectLevel; + this.useUtf8Bom = useUtf8Bom; this.modules = null; this.moduleCount = 0; this.dataCache = null; this.dataList = []; } - QRCodeModel.prototype={addData:function(data){var newData=new QR8bitByte(data);this.dataList.push(newData);this.dataCache=null;},isDark:function(row,col){if(row<0||this.moduleCount<=row||col<0||this.moduleCount<=col){throw new Error(row+","+col);} + QRCodeModel.prototype={addData:function(data){var newData=new QR8bitByte(data, this.useUtf8Bom);this.dataList.push(newData);this.dataCache=null;},isDark:function(row,col){if(row<0||this.moduleCount<=row||col<0||this.moduleCount<=col){throw new Error(row+","+col);} return this.modules[row][col];},getModuleCount:function(){return this.moduleCount;},make:function(){this.makeImpl(false,this.getBestMaskPattern());},makeImpl:function(test,maskPattern){this.moduleCount=this.typeNumber*4+17;this.modules=new Array(this.moduleCount);for(var row=0;row=7){this.setupTypeNumber(test);} if(this.dataCache==null){this.dataCache=QRCodeModel.createData(this.typeNumber,this.errorCorrectLevel,this.dataList);} @@ -150,28 +152,28 @@ var QRCode; QRBitBuffer.prototype={get:function(index){var bufIndex=Math.floor(index/8);return((this.buffer[bufIndex]>>>(7-index%8))&1)==1;},put:function(num,length){for(var i=0;i>>(length-i-1))&1)==1);}},getLengthInBits:function(){return this.length;},putBit:function(bit){var bufIndex=Math.floor(this.length/8);if(this.buffer.length<=bufIndex){this.buffer.push(0);} if(bit){this.buffer[bufIndex]|=(0x80>>>(this.length%8));} this.length++;}};var QRCodeLimitLength=[[17,14,11,7],[32,26,20,14],[53,42,32,24],[78,62,46,34],[106,84,60,44],[134,106,74,58],[154,122,86,64],[192,152,108,84],[230,180,130,98],[271,213,151,119],[321,251,177,137],[367,287,203,155],[425,331,241,177],[458,362,258,194],[520,412,292,220],[586,450,322,250],[644,504,364,280],[718,560,394,310],[792,624,442,338],[858,666,482,382],[929,711,509,403],[1003,779,565,439],[1091,857,611,461],[1171,911,661,511],[1273,997,715,535],[1367,1059,751,593],[1465,1125,805,625],[1528,1190,868,658],[1628,1264,908,698],[1732,1370,982,742],[1840,1452,1030,790],[1952,1538,1112,842],[2068,1628,1168,898],[2188,1722,1228,958],[2303,1809,1283,983],[2431,1911,1351,1051],[2563,1989,1423,1093],[2699,2099,1499,1139],[2809,2213,1579,1219],[2953,2331,1663,1273]]; - + function _isSupportCanvas() { return typeof CanvasRenderingContext2D != "undefined"; } - + // android 2.x doesn't support Data-URI spec function _getAndroid() { var android = false; var sAgent = navigator.userAgent; - + if (/android/i.test(sAgent)) { // android android = true; var aMat = sAgent.toString().match(/android ([0-9]\.[0-9])/i); - + if (aMat && aMat[1]) { android = parseFloat(aMat[1]); } } - + return android; } - + var svgDrawer = (function() { var Drawing = function (el, htOption) { @@ -227,10 +229,10 @@ var QRCode; this._el = el; this._htOption = htOption; }; - + /** * Draw the QRCode - * + * * @param {QRCode} oQRCode */ Drawing.prototype.draw = function (oQRCode) { @@ -240,50 +242,50 @@ var QRCode; var nWidth = Math.floor(_htOption.width / nCount); var nHeight = Math.floor(_htOption.height / nCount); var aHTML = ['']; - + for (var row = 0; row < nCount; row++) { aHTML.push(''); - + for (var col = 0; col < nCount; col++) { aHTML.push(''); } - + aHTML.push(''); } - + aHTML.push('
'); _el.innerHTML = aHTML.join(''); - + // Fix the margin values as real size. var elTable = _el.childNodes[0]; var nLeftMarginTable = (_htOption.width - elTable.offsetWidth) / 2; var nTopMarginTable = (_htOption.height - elTable.offsetHeight) / 2; - + if (nLeftMarginTable > 0 && nTopMarginTable > 0) { - elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px"; + elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px"; } }; - + /** * Clear the QRCode */ Drawing.prototype.clear = function () { this._el.innerHTML = ''; }; - + return Drawing; })() : (function () { // Drawing in Canvas function _onMakeImage() { this._elImage.src = this._elCanvas.toDataURL("image/png"); this._elImage.style.display = "block"; - this._elCanvas.style.display = "none"; + this._elCanvas.style.display = "none"; } - + // Android 2.1 bug workaround // http://code.google.com/p/android/issues/detail?id=5141 if (this._android && this._android <= 2.1) { var factor = 1 / window.devicePixelRatio; - var drawImage = CanvasRenderingContext2D.prototype.drawImage; + var drawImage = CanvasRenderingContext2D.prototype.drawImage; CanvasRenderingContext2D.prototype.drawImage = function (image, sx, sy, sw, sh, dx, dy, dw, dh) { if (("nodeName" in image) && /img/i.test(image.nodeName)) { for (var i = arguments.length - 1; i >= 1; i--) { @@ -295,14 +297,14 @@ var QRCode; arguments[3] *= factor; arguments[4] *= factor; } - - drawImage.apply(this, arguments); + + drawImage.apply(this, arguments); }; } - + /** * Check whether the user's browser supports Data URI or not - * + * * @private * @param {Function} fSuccess Occurs if it supports Data URI * @param {Function} fFail Occurs if it doesn't support Data URI @@ -341,18 +343,18 @@ var QRCode; self._fFail.call(self); } }; - + /** * Drawing QRCode by using canvas - * + * * @constructor * @param {HTMLElement} el - * @param {Object} htOption QRCode Options + * @param {Object} htOption QRCode Options */ var Drawing = function (el, htOption) { this._bIsPainted = false; this._android = _getAndroid(); - + this._htOption = htOption; this._elCanvas = document.createElement("canvas"); this._elCanvas.width = htOption.width; @@ -367,17 +369,17 @@ var QRCode; this._el.appendChild(this._elImage); this._bSupportDataURI = null; }; - + /** * Draw the QRCode - * - * @param {QRCode} oQRCode + * + * @param {QRCode} oQRCode */ Drawing.prototype.draw = function (oQRCode) { var _elImage = this._elImage; var _oContext = this._oContext; var _htOption = this._htOption; - + var nCount = oQRCode.getModuleCount(); var nWidth = _htOption.width / nCount; var nHeight = _htOption.height / nCount; @@ -386,7 +388,7 @@ var QRCode; _elImage.style.display = "none"; this.clear(); - + for (var row = 0; row < nCount; row++) { for (var col = 0; col < nCount; col++) { var bIsDark = oQRCode.isDark(row, col); @@ -394,9 +396,9 @@ var QRCode; var nTop = row * nHeight; _oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight; _oContext.lineWidth = 1; - _oContext.fillStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight; + _oContext.fillStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight; _oContext.fillRect(nLeft, nTop, nWidth, nHeight); - + // 안티 앨리어싱 방지 처리 _oContext.strokeRect( Math.floor(nLeft) + 0.5, @@ -404,7 +406,7 @@ var QRCode; nRoundedWidth, nRoundedHeight ); - + _oContext.strokeRect( Math.ceil(nLeft) - 0.5, Math.ceil(nTop) - 0.5, @@ -413,10 +415,10 @@ var QRCode; ); } } - + this._bIsPainted = true; }; - + /** * Make the image from Canvas if the browser supports Data URI. */ @@ -425,16 +427,16 @@ var QRCode; _safeSetDataURI.call(this, _onMakeImage); } }; - + /** * Return whether the QRCode is painted or not - * + * * @return {Boolean} */ Drawing.prototype.isPainted = function () { return this._bIsPainted; }; - + /** * Clear the QRCode */ @@ -442,7 +444,7 @@ var QRCode; this._oContext.clearRect(0, 0, this._elCanvas.width, this._elCanvas.height); this._bIsPainted = false; }; - + /** * @private * @param {Number} nNumber @@ -451,28 +453,28 @@ var QRCode; if (!nNumber) { return nNumber; } - + return Math.floor(nNumber * 1000) / 1000; }; - + return Drawing; })(); - + /** * Get the type by string length - * + * * @private * @param {String} sText * @param {Number} nCorrectLevel * @return {Number} type */ - function _getTypeNumber(sText, nCorrectLevel) { + function _getTypeNumber(sText, nCorrectLevel) { var nType = 1; var length = _getUTF8Length(sText); - + for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) { var nLimit = 0; - + switch (nCorrectLevel) { case QRErrorCorrectLevel.L : nLimit = QRCodeLimitLength[i][0]; @@ -487,18 +489,18 @@ var QRCode; nLimit = QRCodeLimitLength[i][3]; break; } - + if (length <= nLimit) { break; } else { nType++; } } - + if (nType > QRCodeLimitLength.length) { throw new Error("Too long data"); } - + return nType; } @@ -506,11 +508,11 @@ var QRCode; var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a'); return replacedText.length + (replacedText.length != sText ? 3 : 0); } - + /** * @class QRCode * @constructor - * @example + * @example * new QRCode(document.getElementById("test"), "http://jindo.dev.naver.com/collie"); * * @example @@ -519,7 +521,7 @@ var QRCode; * width : 128, * height : 128 * }); - * + * * oQRCode.clear(); // Clear the QRCode. * oQRCode.makeCode("http://map.naver.com"); // Re-create the QRCode. * @@ -530,31 +532,32 @@ var QRCode; * @param {Number} [vOption.height=256] * @param {String} [vOption.colorDark="#000000"] * @param {String} [vOption.colorLight="#ffffff"] - * @param {QRCode.CorrectLevel} [vOption.correctLevel=QRCode.CorrectLevel.H] [L|M|Q|H] + * @param {QRCode.CorrectLevel} [vOption.correctLevel=QRCode.CorrectLevel.H] [L|M|Q|H] */ QRCode = function (el, vOption) { this._htOption = { - width : 256, + width : 256, height : 256, typeNumber : 4, colorDark : "#000000", colorLight : "#ffffff", - correctLevel : QRErrorCorrectLevel.H + correctLevel : QRErrorCorrectLevel.H, + useUtf8Bom: true }; - + if (typeof vOption === 'string') { vOption = { text : vOption }; } - + // Overwrites options if (vOption) { for (var i in vOption) { this._htOption[i] = vOption[i]; } } - + if (typeof el == "string") { el = document.getElementById(el); } @@ -562,36 +565,36 @@ var QRCode; if (this._htOption.useSVG) { Drawing = svgDrawer; } - + this._android = _getAndroid(); this._el = el; this._oQRCode = null; this._oDrawing = new Drawing(this._el, this._htOption); - + if (this._htOption.text) { - this.makeCode(this._htOption.text); + this.makeCode(this._htOption.text); } }; - + /** * Make the QRCode - * + * * @param {String} sText link data */ QRCode.prototype.makeCode = function (sText) { - this._oQRCode = new QRCodeModel(_getTypeNumber(sText, this._htOption.correctLevel), this._htOption.correctLevel); + this._oQRCode = new QRCodeModel(_getTypeNumber(sText, this._htOption.correctLevel), this._htOption.correctLevel, this._htOption.useUtf8Bom); this._oQRCode.addData(sText); this._oQRCode.make(); this._el.title = sText; - this._oDrawing.draw(this._oQRCode); + this._oDrawing.draw(this._oQRCode); this.makeImage(); }; - + /** * Make the Image from Canvas element * - It occurs automatically * - Android below 3 doesn't support Data-URI spec. - * + * * @private */ QRCode.prototype.makeImage = function () { @@ -599,14 +602,14 @@ var QRCode; this._oDrawing.makeImage(); } }; - + /** * Clear the QRCode */ QRCode.prototype.clear = function () { this._oDrawing.clear(); }; - + /** * @name QRCode.CorrectLevel */ diff --git a/qrcode.min.js b/qrcode.min.js index 993e88f3..f37dc331 100644 --- a/qrcode.min.js +++ b/qrcode.min.js @@ -1 +1 @@ -var QRCode;!function(){function a(a){this.mode=c.MODE_8BIT_BYTE,this.data=a,this.parsedData=[];for(var b=[],d=0,e=this.data.length;e>d;d++){var f=this.data.charCodeAt(d);f>65536?(b[0]=240|(1835008&f)>>>18,b[1]=128|(258048&f)>>>12,b[2]=128|(4032&f)>>>6,b[3]=128|63&f):f>2048?(b[0]=224|(61440&f)>>>12,b[1]=128|(4032&f)>>>6,b[2]=128|63&f):f>128?(b[0]=192|(1984&f)>>>6,b[1]=128|63&f):b[0]=f,this.parsedData=this.parsedData.concat(b)}this.parsedData.length!=this.data.length&&(this.parsedData.unshift(191),this.parsedData.unshift(187),this.parsedData.unshift(239))}function b(a,b){this.typeNumber=a,this.errorCorrectLevel=b,this.modules=null,this.moduleCount=0,this.dataCache=null,this.dataList=[]}function i(a,b){if(void 0==a.length)throw new Error(a.length+"/"+b);for(var c=0;c=f;f++){var h=0;switch(b){case d.L:h=l[f][0];break;case d.M:h=l[f][1];break;case d.Q:h=l[f][2];break;case d.H:h=l[f][3]}if(h>=e)break;c++}if(c>l.length)throw new Error("Too long data");return c}function s(a){var b=encodeURI(a).toString().replace(/\%[0-9a-fA-F]{2}/g,"a");return b.length+(b.length!=a?3:0)}a.prototype={getLength:function(){return this.parsedData.length},write:function(a){for(var b=0,c=this.parsedData.length;c>b;b++)a.put(this.parsedData[b],8)}},b.prototype={addData:function(b){var c=new a(b);this.dataList.push(c),this.dataCache=null},isDark:function(a,b){if(0>a||this.moduleCount<=a||0>b||this.moduleCount<=b)throw new Error(a+","+b);return this.modules[a][b]},getModuleCount:function(){return this.moduleCount},make:function(){this.makeImpl(!1,this.getBestMaskPattern())},makeImpl:function(a,c){this.moduleCount=4*this.typeNumber+17,this.modules=new Array(this.moduleCount);for(var d=0;d=7&&this.setupTypeNumber(a),null==this.dataCache&&(this.dataCache=b.createData(this.typeNumber,this.errorCorrectLevel,this.dataList)),this.mapData(this.dataCache,c)},setupPositionProbePattern:function(a,b){for(var c=-1;7>=c;c++)if(!(-1>=a+c||this.moduleCount<=a+c))for(var d=-1;7>=d;d++)-1>=b+d||this.moduleCount<=b+d||(this.modules[a+c][b+d]=c>=0&&6>=c&&(0==d||6==d)||d>=0&&6>=d&&(0==c||6==c)||c>=2&&4>=c&&d>=2&&4>=d?!0:!1)},getBestMaskPattern:function(){for(var a=0,b=0,c=0;8>c;c++){this.makeImpl(!0,c);var d=f.getLostPoint(this);(0==c||a>d)&&(a=d,b=c)}return b},createMovieClip:function(a,b,c){var d=a.createEmptyMovieClip(b,c),e=1;this.make();for(var f=0;f=g;g++)for(var h=-2;2>=h;h++)this.modules[d+g][e+h]=-2==g||2==g||-2==h||2==h||0==g&&0==h?!0:!1}},setupTypeNumber:function(a){for(var b=f.getBCHTypeNumber(this.typeNumber),c=0;18>c;c++){var d=!a&&1==(1&b>>c);this.modules[Math.floor(c/3)][c%3+this.moduleCount-8-3]=d}for(var c=0;18>c;c++){var d=!a&&1==(1&b>>c);this.modules[c%3+this.moduleCount-8-3][Math.floor(c/3)]=d}},setupTypeInfo:function(a,b){for(var c=this.errorCorrectLevel<<3|b,d=f.getBCHTypeInfo(c),e=0;15>e;e++){var g=!a&&1==(1&d>>e);6>e?this.modules[e][8]=g:8>e?this.modules[e+1][8]=g:this.modules[this.moduleCount-15+e][8]=g}for(var e=0;15>e;e++){var g=!a&&1==(1&d>>e);8>e?this.modules[8][this.moduleCount-e-1]=g:9>e?this.modules[8][15-e-1+1]=g:this.modules[8][15-e-1]=g}this.modules[this.moduleCount-8][8]=!a},mapData:function(a,b){for(var c=-1,d=this.moduleCount-1,e=7,g=0,h=this.moduleCount-1;h>0;h-=2)for(6==h&&h--;;){for(var i=0;2>i;i++)if(null==this.modules[d][h-i]){var j=!1;g>>e));var k=f.getMask(b,d,h-i);k&&(j=!j),this.modules[d][h-i]=j,e--,-1==e&&(g++,e=7)}if(d+=c,0>d||this.moduleCount<=d){d-=c,c=-c;break}}}},b.PAD0=236,b.PAD1=17,b.createData=function(a,c,d){for(var e=j.getRSBlocks(a,c),g=new k,h=0;h8*l)throw new Error("code length overflow. ("+g.getLengthInBits()+">"+8*l+")");for(g.getLengthInBits()+4<=8*l&&g.put(0,4);0!=g.getLengthInBits()%8;)g.putBit(!1);for(;;){if(g.getLengthInBits()>=8*l)break;if(g.put(b.PAD0,8),g.getLengthInBits()>=8*l)break;g.put(b.PAD1,8)}return b.createBytes(g,e)},b.createBytes=function(a,b){for(var c=0,d=0,e=0,g=new Array(b.length),h=new Array(b.length),j=0;j=0?p.get(q):0}}for(var r=0,m=0;mm;m++)for(var j=0;jm;m++)for(var j=0;j=0;)b^=f.G15<=0;)b^=f.G18<>>=1;return b},getPatternPosition:function(a){return f.PATTERN_POSITION_TABLE[a-1]},getMask:function(a,b,c){switch(a){case e.PATTERN000:return 0==(b+c)%2;case e.PATTERN001:return 0==b%2;case e.PATTERN010:return 0==c%3;case e.PATTERN011:return 0==(b+c)%3;case e.PATTERN100:return 0==(Math.floor(b/2)+Math.floor(c/3))%2;case e.PATTERN101:return 0==b*c%2+b*c%3;case e.PATTERN110:return 0==(b*c%2+b*c%3)%2;case e.PATTERN111:return 0==(b*c%3+(b+c)%2)%2;default:throw new Error("bad maskPattern:"+a)}},getErrorCorrectPolynomial:function(a){for(var b=new i([1],0),c=0;a>c;c++)b=b.multiply(new i([1,g.gexp(c)],0));return b},getLengthInBits:function(a,b){if(b>=1&&10>b)switch(a){case c.MODE_NUMBER:return 10;case c.MODE_ALPHA_NUM:return 9;case c.MODE_8BIT_BYTE:return 8;case c.MODE_KANJI:return 8;default:throw new Error("mode:"+a)}else if(27>b)switch(a){case c.MODE_NUMBER:return 12;case c.MODE_ALPHA_NUM:return 11;case c.MODE_8BIT_BYTE:return 16;case c.MODE_KANJI:return 10;default:throw new Error("mode:"+a)}else{if(!(41>b))throw new Error("type:"+b);switch(a){case c.MODE_NUMBER:return 14;case c.MODE_ALPHA_NUM:return 13;case c.MODE_8BIT_BYTE:return 16;case c.MODE_KANJI:return 12;default:throw new Error("mode:"+a)}}},getLostPoint:function(a){for(var b=a.getModuleCount(),c=0,d=0;b>d;d++)for(var e=0;b>e;e++){for(var f=0,g=a.isDark(d,e),h=-1;1>=h;h++)if(!(0>d+h||d+h>=b))for(var i=-1;1>=i;i++)0>e+i||e+i>=b||(0!=h||0!=i)&&g==a.isDark(d+h,e+i)&&f++;f>5&&(c+=3+f-5)}for(var d=0;b-1>d;d++)for(var e=0;b-1>e;e++){var j=0;a.isDark(d,e)&&j++,a.isDark(d+1,e)&&j++,a.isDark(d,e+1)&&j++,a.isDark(d+1,e+1)&&j++,(0==j||4==j)&&(c+=3)}for(var d=0;b>d;d++)for(var e=0;b-6>e;e++)a.isDark(d,e)&&!a.isDark(d,e+1)&&a.isDark(d,e+2)&&a.isDark(d,e+3)&&a.isDark(d,e+4)&&!a.isDark(d,e+5)&&a.isDark(d,e+6)&&(c+=40);for(var e=0;b>e;e++)for(var d=0;b-6>d;d++)a.isDark(d,e)&&!a.isDark(d+1,e)&&a.isDark(d+2,e)&&a.isDark(d+3,e)&&a.isDark(d+4,e)&&!a.isDark(d+5,e)&&a.isDark(d+6,e)&&(c+=40);for(var k=0,e=0;b>e;e++)for(var d=0;b>d;d++)a.isDark(d,e)&&k++;var l=Math.abs(100*k/b/b-50)/5;return c+=10*l}},g={glog:function(a){if(1>a)throw new Error("glog("+a+")");return g.LOG_TABLE[a]},gexp:function(a){for(;0>a;)a+=255;for(;a>=256;)a-=255;return g.EXP_TABLE[a]},EXP_TABLE:new Array(256),LOG_TABLE:new Array(256)},h=0;8>h;h++)g.EXP_TABLE[h]=1<h;h++)g.EXP_TABLE[h]=g.EXP_TABLE[h-4]^g.EXP_TABLE[h-5]^g.EXP_TABLE[h-6]^g.EXP_TABLE[h-8];for(var h=0;255>h;h++)g.LOG_TABLE[g.EXP_TABLE[h]]=h;i.prototype={get:function(a){return 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