databr.js

function QRCodeDataBlockReader(t,i,e){this.blockPointer=0,this.bitPointer=7,this.dataLength=0,this.blocks=t,this.numErrorCorrectionCode=e,9>=i?this.dataLengthMode=0:i>=10&&26>=i?this.dataLengthMode=1:i>=27&&40>=i&&(this.dataLengthMode=2),this.getNextBits=function(t){var i=0;if(t<this.bitPointer+1){for(var e=0,r=0;t>r;r++)e+=1<<r;return e<<=this.bitPointer-t+1,i=(this.blocks[this.blockPointer]&e)>>this.bitPointer-t+1,this.bitPointer-=t,i}if(t<this.bitPointer+1+8){for(var n=0,r=0;r<this.bitPointer+1;r++)n+=1<<r;return i=(this.blocks[this.blockPointer]&n)<<t-(this.bitPointer+1),this.blockPointer++,i+=this.blocks[this.blockPointer]>>8-(t-(this.bitPointer+1)),this.bitPointer=this.bitPointer-t%8,this.bitPointer<0&&(this.bitPointer=8+this.bitPointer),i}if(t<this.bitPointer+1+16){for(var n=0,h=0,r=0;r<this.bitPointer+1;r++)n+=1<<r;var o=(this.blocks[this.blockPointer]&n)<<t-(this.bitPointer+1);this.blockPointer++;var s=this.blocks[this.blockPointer]<<t-(this.bitPointer+1+8);this.blockPointer++;for(var r=0;r<t-(this.bitPointer+1+8);r++)h+=1<<r;h<<=8-(t-(this.bitPointer+1+8));var a=(this.blocks[this.blockPointer]&h)>>8-(t-(this.bitPointer+1+8));return i=o+s+a,this.bitPointer=this.bitPointer-(t-8)%8,this.bitPointer<0&&(this.bitPointer=8+this.bitPointer),i}return 0},this.NextMode=function(){return this.blockPointer>this.blocks.length-this.numErrorCorrectionCode-2?0:this.getNextBits(4)},this.getDataLength=function(t){for(var i=0;;){if(t>>i==1)break;i++}return this.getNextBits(qrcode.sizeOfDataLengthInfo[this.dataLengthMode][i])},this.getRomanAndFigureString=function(t){var i=t,e=0,r="",n=new Array("0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"," ","$","%","*","+","-",".","/",":");do if(i>1){e=this.getNextBits(11);var h=Math.floor(e/45),o=e%45;r+=n[h],r+=n[o],i-=2}else 1==i&&(e=this.getNextBits(6),r+=n[e],i-=1);while(i>0);return r},this.getFigureString=function(t){var i=t,e=0,r="";do i>=3?(e=this.getNextBits(10),100>e&&(r+="0"),10>e&&(r+="0"),i-=3):2==i?(e=this.getNextBits(7),10>e&&(r+="0"),i-=2):1==i&&(e=this.getNextBits(4),i-=1),r+=e;while(i>0);return r},this.get8bitByteArray=function(t){var i=t,e=0,r=new Array;do e=this.getNextBits(8),r.push(e),i--;while(i>0);return r},this.getKanjiString=function(t){var i=t,e=0,r="";do{e=getNextBits(13);var n=e%192,h=e/192,o=(h<<8)+n,s=0;s=40956>=o+33088?o+33088:o+49472,r+=String.fromCharCode(s),i--}while(i>0);return r},Object.defineProperty(this,"DataByte",{get:function(){for(var t=new Array,i=1,e=2,r=4,n=8;;){var h=this.NextMode();if(0==h){if(t.length>0)break;throw"Empty data block"}if(h!=i&&h!=e&&h!=r&&h!=n)throw h=guessMode(h),"Invalid mode: "+h+" in (block:"+this.blockPointer+" bit:"+this.bitPointer+")";if(dataLength=this.getDataLength(h),1>dataLength)throw"Invalid data length: "+dataLength;switch(h){case i:for(var o=this.getFigureString(dataLength),s=new Array(o.length),a=0;a<o.length;a++)s[a]=o.charCodeAt(a);t.push(s);break;case e:for(var o=this.getRomanAndFigureString(dataLength),s=new Array(o.length),a=0;a<o.length;a++)s[a]=o.charCodeAt(a);t.push(s);break;case r:var b=this.get8bitByteArray(dataLength);t.push(b);break;case n:var o=this.getKanjiString(dataLength);t.push(o)}}return t}})}