@plattar/plattar-qrcode
Version:
Allows embedding Plattar-Style QR Codes for existing websites.
1 lines • 149 kB
JavaScript
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url=this.hasAttribute("url")?this.getAttribute("url"):undefined;if(!url){console.warn('PlattarQR.renderQRCode() - required attribute "url" is missing or invalid, QR Code will not render');return}var width=this.hasAttribute("width")?this.getAttribute("width"):"100%";var height=this.hasAttribute("height")?this.getAttribute("height"):"100%";var margin=this.hasAttribute("margin")?this.getAttribute("margin"):0;var image=this.hasAttribute("image")?this.getAttribute("image"):undefined;var color=this.hasAttribute("color")?this.getAttribute("color"):"#000000";var style=this.hasAttribute("qr-type")?this.getAttribute("qr-type"):"default";this._optionsHash="0";this._options=this._options||{imageOptions:{hideBackgroundDots:true,imageSize:.4,margin:0},dotsOptions:{type:"rounded"},backgroundOptions:{color:"#ffffff"},dotsOptionsHelper:{colorType:{single:true,gradient:false},gradient:{linear:true,radial:false,color1:"#6a1a4c",color2:"#6a1a4c",rotation:"0"}},cornersSquareOptions:{type:"extra-rounded"},cornersSquareOptionsHelper:{colorType:{single:true,gradient:false},gradient:{linear:true,radial:false,color1:"#000000",color2:"#000000",rotation:"0"}},cornersDotOptions:{type:"dot"},cornersDotOptionsHelper:{colorType:{single:true,gradient:false},gradient:{linear:true,radial:false,color1:"#000000",color2:"#000000",rotation:"0"}},backgroundOptionsHelper:{colorType:{single:true,gradient:false},gradient:{linear:true,radial:false,color1:"#ffffff",color2:"#ffffff",rotation:"0"}},width:1024,height:1024,type:"canvas"};this._options.margin=margin;this._options.image=image;this._options.dotsOptions.color=color;this._options.cornersDotOptions.color=color;this._options.cornersSquareOptions.color=color;switch(style){case"dots":this._options.dotsOptions.type="dots";break;case"default":default:this._options.dotsOptions.type="rounded"}var shortenURL=this.hasAttribute("shorten")?this.getAttribute("shorten"):"false";if(shortenURL&&shortenURL.toLowerCase()==="true"){this._ShortenURL(url).then(function(newURL){var updatedURL=_this2.hasAttribute("url")?_this2.getAttribute("url"):undefined;if(updatedURL===url){_this2._GenerateQRCode(newURL,width,height)}})["catch"](function(_err){console.warn(_err);var updatedURL=_this2.hasAttribute("url")?_this2.getAttribute("url"):undefined;if(updatedURL===url){_this2._GenerateQRCode(url,width,height)}})}else{this._GenerateQRCode(url,width,height)}}},{key:"_UpdateCanvas",value:function _UpdateCanvas(width,height){if(!this._qrCode){return}var canvas=this._qrCode._domCanvas||this._qrCode._canvas;if(canvas){if(canvas.style.width!=="100%"){canvas.style.width="100%"}if(canvas.style.height!=="100%"){canvas.style.height="100%"}}if(this._divContainer){var div=this._divContainer;if(div.style.width!==width){div.style.width=width}if(div.style.height!==height){div.style.height=height}}}},{key:"_GenerateQRCode",value:function _GenerateQRCode(url,width,height){this._options.data=url;var shadow=this.shadowRoot||this.attachShadow({mode:"open"});var qrCode=this._qrCode;if(!qrCode){var div=document.createElement("div");div.style.display="none";shadow.appendChild(div);this._divContainer=div;this._qrCode=new QRCodeStyling(this._options);this._qrCode.append(div);this._UpdateCanvas(width,height);div.style.display="flex";return}var newHash=hash({options:this._options,width:width,height:height});if(this._optionsHash!==newHash){this._optionsHash=newHash;this._qrCode.update(this._options);this._UpdateCanvas(width,height)}}},{key:"_IsFetchAPISupported",value:function _IsFetchAPISupported(){return"fetch"in window}},{key:"_ShortenURL",value:function _ShortenURL(url){var _this3=this;return new Promise(function(accept,reject){if(!_this3._IsFetchAPISupported()){return reject(new Error("PlattarQR._ShortenURL() - fetch api not supported, cannot proceed"))}try{var b64Link=btoa(url);fetch("https://c.plattar.com/shorten",{cache:"no-store",method:"POST",headers:{"Content-Type":"application/json"},body:JSON.stringify({data:{attributes:{url:b64Link,isBase64:true}}})}).then(function(response){if(!response.ok){throw new Error("PlattarQR._ShortenURL() - response was invalid")}return response.json()}).then(function(json){return accept(json.data.attributes.url)})["catch"](function(){return reject(new Error("PlattarQR._ShortenURL() - there was an unexpected issue generating short url"))})}catch(err){return reject(err)}})}}])}(_wrapNativeSuper(HTMLElement));module.exports=BaseElement},{"object-hash":7,"qr-code-styling":8}],2:[function(require,module,exports){var BaseElement=require("./base/base-element.js");var QRCodeElement=function(_BaseElement){function QRCodeElement(){_classCallCheck(this,QRCodeElement);return _callSuper(this,QRCodeElement)}_inherits(QRCodeElement,_BaseElement);return _createClass(QRCodeElement)}(BaseElement);module.exports=QRCodeElement},{"./base/base-element.js":1}],3:[function(require,module,exports){"use strict";var QRCodeElement=require("./elements/qrcode-element.js");var Version=require("./version");if(customElements){if(customElements.get("plattar-qrcode")===undefined){customElements.define("plattar-qrcode",QRCodeElement)}}console.log("using @plattar/plattar-qrcode v"+Version);module.exports={version:Version}},{"./elements/qrcode-element.js":2,"./version":9}],4:[function(require,module,exports){"use strict";exports.byteLength=byteLength;exports.toByteArray=toByteArray;exports.fromByteArray=fromByteArray;var lookup=[];var revLookup=[];var Arr=typeof Uint8Array!=="undefined"?Uint8Array:Array;var code="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";for(var i=0,len=code.length;i<len;++i){lookup[i]=code[i];revLookup[code.charCodeAt(i)]=i}revLookup["-".charCodeAt(0)]=62;revLookup["_".charCodeAt(0)]=63;function getLens(b64){var len=b64.length;if(len%4>0){throw new Error("Invalid string. Length must be a multiple of 4")}var validLen=b64.indexOf("=");if(validLen===-1)validLen=len;var placeHoldersLen=validLen===len?0:4-validLen%4;return[validLen,placeHoldersLen]}function byteLength(b64){var lens=getLens(b64);var validLen=lens[0];var placeHoldersLen=lens[1];return(validLen+placeHoldersLen)*3/4-placeHoldersLen}function _byteLength(b64,validLen,placeHoldersLen){return(validLen+placeHoldersLen)*3/4-placeHoldersLen}function toByteArray(b64){var tmp;var lens=getLens(b64);var validLen=lens[0];var placeHoldersLen=lens[1];var arr=new Arr(_byteLength(b64,validLen,placeHoldersLen));var curByte=0;var len=placeHoldersLen>0?validLen-4:validLen;var i;for(i=0;i<len;i+=4){tmp=revLookup[b64.charCodeAt(i)]<<18|revLookup[b64.charCodeAt(i+1)]<<12|revLookup[b64.charCodeAt(i+2)]<<6|revLookup[b64.charCodeAt(i+3)];arr[curByte++]=tmp>>16&255;arr[curByte++]=tmp>>8&255;arr[curByte++]=tmp&255}if(placeHoldersLen===2){tmp=revLookup[b64.charCodeAt(i)]<<2|revLookup[b64.charCodeAt(i+1)]>>4;arr[curByte++]=tmp&255}if(placeHoldersLen===1){tmp=revLookup[b64.charCodeAt(i)]<<10|revLookup[b64.charCodeAt(i+1)]<<4|revLookup[b64.charCodeAt(i+2)]>>2;arr[curByte++]=tmp>>8&255;arr[curByte++]=tmp&255}return arr}function tripletToBase64(num){return lookup[num>>18&63]+lookup[num>>12&63]+lookup[num>>6&63]+lookup[num&63]}function encodeChunk(uint8,start,end){var tmp;var output=[];for(var i=start;i<end;i+=3){tmp=(uint8[i]<<16&16711680)+(uint8[i+1]<<8&65280)+(uint8[i+2]&255);output.push(tripletToBase64(tmp))}return output.join("")}function fromByteArray(uint8){var tmp;var len=uint8.length;var extraBytes=len%3;var parts=[];var maxChunkLength=16383;for(var i=0,len2=len-extraBytes;i<len2;i+=maxChunkLength){parts.push(encodeChunk(uint8,i,i+maxChunkLength>len2?len2:i+maxChunkLength))}if(extraBytes===1){tmp=uint8[len-1];parts.push(lookup[tmp>>2]+lookup[tmp<<4&63]+"==")}else if(extraBytes===2){tmp=(uint8[len-2]<<8)+uint8[len-1];parts.push(lookup[tmp>>10]+lookup[tmp>>4&63]+lookup[tmp<<2&63]+"=")}return parts.join("")}},{}],5:[function(require,module,exports){(function(Buffer){(function(){"use strict";var base64=require("base64-js");var ieee754=require("ieee754");exports.Buffer=Buffer;exports.SlowBuffer=SlowBuffer;exports.INSPECT_MAX_BYTES=50;var K_MAX_LENGTH=2147483647;exports.kMaxLength=K_MAX_LENGTH;Buffer.TYPED_ARRAY_SUPPORT=typedArraySupport();if(!Buffer.TYPED_ARRAY_SUPPORT&&typeof console!=="undefined"&&typeof console.error==="function"){console.error("This browser lacks typed array (Uint8Array) support which is required by "+"`buffer` v5.x. Use `buffer` v4.x if you require old browser support.")}function typedArraySupport(){try{var arr=new Uint8Array(1);arr.__proto__={__proto__:Uint8Array.prototype,foo:function foo(){return 42}};return arr.foo()===42}catch(e){return false}}Object.defineProperty(Buffer.prototype,"parent",{enumerable:true,get:function get(){if(!Buffer.isBuffer(this))return undefined;return this.buffer}});Object.defineProperty(Buffer.prototype,"offset",{enumerable:true,get:function get(){if(!Buffer.isBuffer(this))return undefined;return this.byteOffset}});function createBuffer(length){if(length>K_MAX_LENGTH){throw new RangeError('The value "'+length+'" is invalid for option "size"')}var buf=new Uint8Array(length);buf.__proto__=Buffer.prototype;return buf}function Buffer(arg,encodingOrOffset,length){if(typeof arg==="number"){if(typeof encodingOrOffset==="string"){throw new TypeError('The "string" argument must be of type string. Received type number')}return allocUnsafe(arg)}return from(arg,encodingOrOffset,length)}if(typeof Symbol!=="undefined"&&Symbol.species!=null&&Buffer[Symbol.species]===Buffer){Object.defineProperty(Buffer,Symbol.species,{value:null,configurable:true,enumerable:false,writable:false})}Buffer.poolSize=8192;function from(value,encodingOrOffset,length){if(typeof value==="string"){return fromString(value,encodingOrOffset)}if(ArrayBuffer.isView(value)){return fromArrayLike(value)}if(value==null){throw TypeError("The first argument must be one of type string, Buffer, ArrayBuffer, Array, "+"or Array-like Object. Received type "+_typeof(value))}if(isInstance(value,ArrayBuffer)||value&&isInstance(value.buffer,ArrayBuffer)){return fromArrayBuffer(value,encodingOrOffset,length)}if(typeof value==="number"){throw new TypeError('The "value" argument must not be of type number. Received type number')}var valueOf=value.valueOf&&value.valueOf();if(valueOf!=null&&valueOf!==value){return Buffer.from(valueOf,encodingOrOffset,length)}var b=fromObject(value);if(b)return b;if(typeof Symbol!=="undefined"&&Symbol.toPrimitive!=null&&typeof value[Symbol.toPrimitive]==="function"){return Buffer.from(value[Symbol.toPrimitive]("string"),encodingOrOffset,length)}throw new TypeError("The first argument must be one of type string, Buffer, ArrayBuffer, Array, "+"or Array-like Object. Received type "+_typeof(value))}Buffer.from=function(value,encodingOrOffset,length){return from(value,encodingOrOffset,length)};Buffer.prototype.__proto__=Uint8Array.prototype;Buffer.__proto__=Uint8Array;function assertSize(size){if(typeof size!=="number"){throw new TypeError('"size" argument must be of type number')}else if(size<0){throw new RangeError('The value "'+size+'" is invalid for option "size"')}}function alloc(size,fill,encoding){assertSize(size);if(size<=0){return createBuffer(size)}if(fill!==undefined){return typeof encoding==="string"?createBuffer(size).fill(fill,encoding):createBuffer(size).fill(fill)}return createBuffer(size)}Buffer.alloc=function(size,fill,encoding){return alloc(size,fill,encoding)};function allocUnsafe(size){assertSize(size);return createBuffer(size<0?0:checked(size)|0)}Buffer.allocUnsafe=function(size){return allocUnsafe(size)};Buffer.allocUnsafeSlow=function(size){return allocUnsafe(size)};function fromString(string,encoding){if(typeof encoding!=="string"||encoding===""){encoding="utf8"}if(!Buffer.isEncoding(encoding)){throw new TypeError("Unknown encoding: "+encoding)}var length=byteLength(string,encoding)|0;var buf=createBuffer(length);var actual=buf.write(string,encoding);if(actual!==length){buf=buf.slice(0,actual)}return buf}function fromArrayLike(array){var length=array.length<0?0:checked(array.length)|0;var buf=createBuffer(length);for(var i=0;i<length;i+=1){buf[i]=array[i]&255}return buf}function fromArrayBuffer(array,byteOffset,length){if(byteOffset<0||array.byteLength<byteOffset){throw new RangeError('"offset" is outside of buffer bounds')}if(array.byteLength<byteOffset+(length||0)){throw new RangeError('"length" is outside of buffer bounds')}var buf;if(byteOffset===undefined&&length===undefined){buf=new Uint8Array(array)}else if(length===undefined){buf=new Uint8Array(array,byteOffset)}else{buf=new Uint8Array(array,byteOffset,length)}buf.__proto__=Buffer.prototype;return buf}function fromObject(obj){if(Buffer.isBuffer(obj)){var len=checked(obj.length)|0;var buf=createBuffer(len);if(buf.length===0){return buf}obj.copy(buf,0,0,len);return buf}if(obj.length!==undefined){if(typeof obj.length!=="number"||numberIsNaN(obj.length)){return createBuffer(0)}return fromArrayLike(obj)}if(obj.type==="Buffer"&&Array.isArray(obj.data)){return fromArrayLike(obj.data)}}function checked(length){if(length>=K_MAX_LENGTH){throw new RangeError("Attempt to allocate Buffer larger than maximum "+"size: 0x"+K_MAX_LENGTH.toString(16)+" bytes")}return length|0}function SlowBuffer(length){if(+length!=length){length=0}return Buffer.alloc(+length)}Buffer.isBuffer=function isBuffer(b){return b!=null&&b._isBuffer===true&&b!==Buffer.prototype};Buffer.compare=function compare(a,b){if(isInstance(a,Uint8Array))a=Buffer.from(a,a.offset,a.byteLength);if(isInstance(b,Uint8Array))b=Buffer.from(b,b.offset,b.byteLength);if(!Buffer.isBuffer(a)||!Buffer.isBuffer(b)){throw new TypeError('The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array')}if(a===b)return 0;var x=a.length;var y=b.length;for(var i=0,len=Math.min(x,y);i<len;++i){if(a[i]!==b[i]){x=a[i];y=b[i];break}}if(x<y)return-1;if(y<x)return 1;return 0};Buffer.isEncoding=function isEncoding(encoding){switch(String(encoding).toLowerCase()){case"hex":case"utf8":case"utf-8":case"ascii":case"latin1":case"binary":case"base64":case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return true;default:return false}};Buffer.concat=function concat(list,length){if(!Array.isArray(list)){throw new TypeError('"list" argument must be an Array of Buffers')}if(list.length===0){return Buffer.alloc(0)}var i;if(length===undefined){length=0;for(i=0;i<list.length;++i){length+=list[i].length}}var buffer=Buffer.allocUnsafe(length);var pos=0;for(i=0;i<list.length;++i){var buf=list[i];if(isInstance(buf,Uint8Array)){buf=Buffer.from(buf)}if(!Buffer.isBuffer(buf)){throw new TypeError('"list" argument must be an Array of Buffers')}buf.copy(buffer,pos);pos+=buf.length}return buffer};function byteLength(string,encoding){if(Buffer.isBuffer(string)){return string.length}if(ArrayBuffer.isView(string)||isInstance(string,ArrayBuffer)){return string.byteLength}if(typeof string!=="string"){throw new TypeError('The "string" argument must be one of type string, Buffer, or ArrayBuffer. '+"Received type "+_typeof(string))}var len=string.length;var mustMatch=arguments.length>2&&arguments[2]===true;if(!mustMatch&&len===0)return 0;var loweredCase=false;for(;;){switch(encoding){case"ascii":case"latin1":case"binary":return len;case"utf8":case"utf-8":return utf8ToBytes(string).length;case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return len*2;case"hex":return len>>>1;case"base64":return base64ToBytes(string).length;default:if(loweredCase){return mustMatch?-1:utf8ToBytes(string).length}encoding=(""+encoding).toLowerCase();loweredCase=true}}}Buffer.byteLength=byteLength;function slowToString(encoding,start,end){var loweredCase=false;if(start===undefined||start<0){start=0}if(start>this.length){return""}if(end===undefined||end>this.length){end=this.length}if(end<=0){return""}end>>>=0;start>>>=0;if(end<=start){return""}if(!encoding)encoding="utf8";while(true){switch(encoding){case"hex":return hexSlice(this,start,end);case"utf8":case"utf-8":return utf8Slice(this,start,end);case"ascii":return asciiSlice(this,start,end);case"latin1":case"binary":return latin1Slice(this,start,end);case"base64":return base64Slice(this,start,end);case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return utf16leSlice(this,start,end);default:if(loweredCase)throw new TypeError("Unknown encoding: "+encoding);encoding=(encoding+"").toLowerCase();loweredCase=true}}}Buffer.prototype._isBuffer=true;function swap(b,n,m){var i=b[n];b[n]=b[m];b[m]=i}Buffer.prototype.swap16=function swap16(){var len=this.length;if(len%2!==0){throw new RangeError("Buffer size must be a multiple of 16-bits")}for(var i=0;i<len;i+=2){swap(this,i,i+1)}return this};Buffer.prototype.swap32=function swap32(){var len=this.length;if(len%4!==0){throw new RangeError("Buffer size must be a multiple of 32-bits")}for(var i=0;i<len;i+=4){swap(this,i,i+3);swap(this,i+1,i+2)}return this};Buffer.prototype.swap64=function swap64(){var len=this.length;if(len%8!==0){throw new RangeError("Buffer size must be a multiple of 64-bits")}for(var i=0;i<len;i+=8){swap(this,i,i+7);swap(this,i+1,i+6);swap(this,i+2,i+5);swap(this,i+3,i+4)}return this};Buffer.prototype.toString=function toString(){var length=this.length;if(length===0)return"";if(arguments.length===0)return utf8Slice(this,0,length);return slowToString.apply(this,arguments)};Buffer.prototype.toLocaleString=Buffer.prototype.toString;Buffer.prototype.equals=function equals(b){if(!Buffer.isBuffer(b))throw new TypeError("Argument must be a Buffer");if(this===b)return true;return Buffer.compare(this,b)===0};Buffer.prototype.inspect=function inspect(){var str="";var max=exports.INSPECT_MAX_BYTES;str=this.toString("hex",0,max).replace(/(.{2})/g,"$1 ").trim();if(this.length>max)str+=" ... ";return"<Buffer "+str+">"};Buffer.prototype.compare=function compare(target,start,end,thisStart,thisEnd){if(isInstance(target,Uint8Array)){target=Buffer.from(target,target.offset,target.byteLength)}if(!Buffer.isBuffer(target)){throw new TypeError('The "target" argument must be one of type Buffer or Uint8Array. '+"Received type "+_typeof(target))}if(start===undefined){start=0}if(end===undefined){end=target?target.length:0}if(thisStart===undefined){thisStart=0}if(thisEnd===undefined){thisEnd=this.length}if(start<0||end>target.length||thisStart<0||thisEnd>this.length){throw new RangeError("out of range index")}if(thisStart>=thisEnd&&start>=end){return 0}if(thisStart>=thisEnd){return-1}if(start>=end){return 1}start>>>=0;end>>>=0;thisStart>>>=0;thisEnd>>>=0;if(this===target)return 0;var x=thisEnd-thisStart;var y=end-start;var len=Math.min(x,y);var thisCopy=this.slice(thisStart,thisEnd);var targetCopy=target.slice(start,end);for(var i=0;i<len;++i){if(thisCopy[i]!==targetCopy[i]){x=thisCopy[i];y=targetCopy[i];break}}if(x<y)return-1;if(y<x)return 1;return 0};function bidirectionalIndexOf(buffer,val,byteOffset,encoding,dir){if(buffer.length===0)return-1;if(typeof byteOffset==="string"){encoding=byteOffset;byteOffset=0}else if(byteOffset>2147483647){byteOffset=2147483647}else if(byteOffset<-2147483648){byteOffset=-2147483648}byteOffset=+byteOffset;if(numberIsNaN(byteOffset)){byteOffset=dir?0:buffer.length-1}if(byteOffset<0)byteOffset=buffer.length+byteOffset;if(byteOffset>=buffer.length){if(dir)return-1;else byteOffset=buffer.length-1}else if(byteOffset<0){if(dir)byteOffset=0;else return-1}if(typeof val==="string"){val=Buffer.from(val,encoding)}if(Buffer.isBuffer(val)){if(val.length===0){return-1}return arrayIndexOf(buffer,val,byteOffset,encoding,dir)}else if(typeof val==="number"){val=val&255;if(typeof Uint8Array.prototype.indexOf==="function"){if(dir){return Uint8Array.prototype.indexOf.call(buffer,val,byteOffset)}else{return Uint8Array.prototype.lastIndexOf.call(buffer,val,byteOffset)}}return arrayIndexOf(buffer,[val],byteOffset,encoding,dir)}throw new TypeError("val must be string, number or Buffer")}function arrayIndexOf(arr,val,byteOffset,encoding,dir){var indexSize=1;var arrLength=arr.length;var valLength=val.length;if(encoding!==undefined){encoding=String(encoding).toLowerCase();if(encoding==="ucs2"||encoding==="ucs-2"||encoding==="utf16le"||encoding==="utf-16le"){if(arr.length<2||val.length<2){return-1}indexSize=2;arrLength/=2;valLength/=2;byteOffset/=2}}function read(buf,i){if(indexSize===1){return buf[i]}else{return buf.readUInt16BE(i*indexSize)}}var i;if(dir){var foundIndex=-1;for(i=byteOffset;i<arrLength;i++){if(read(arr,i)===read(val,foundIndex===-1?0:i-foundIndex)){if(foundIndex===-1)foundIndex=i;if(i-foundIndex+1===valLength)return foundIndex*indexSize}else{if(foundIndex!==-1)i-=i-foundIndex;foundIndex=-1}}}else{if(byteOffset+valLength>arrLength)byteOffset=arrLength-valLength;for(i=byteOffset;i>=0;i--){var found=true;for(var j=0;j<valLength;j++){if(read(arr,i+j)!==read(val,j)){found=false;break}}if(found)return i}}return-1}Buffer.prototype.includes=function includes(val,byteOffset,encoding){return this.indexOf(val,byteOffset,encoding)!==-1};Buffer.prototype.indexOf=function indexOf(val,byteOffset,encoding){return bidirectionalIndexOf(this,val,byteOffset,encoding,true)};Buffer.prototype.lastIndexOf=function lastIndexOf(val,byteOffset,encoding){return bidirectionalIndexOf(this,val,byteOffset,encoding,false)};function hexWrite(buf,string,offset,length){offset=Number(offset)||0;var remaining=buf.length-offset;if(!length){length=remaining}else{length=Number(length);if(length>remaining){length=remaining}}var strLen=string.length;if(length>strLen/2){length=strLen/2}for(var i=0;i<length;++i){var parsed=parseInt(string.substr(i*2,2),16);if(numberIsNaN(parsed))return i;buf[offset+i]=parsed}return i}function utf8Write(buf,string,offset,length){return blitBuffer(utf8ToBytes(string,buf.length-offset),buf,offset,length)}function asciiWrite(buf,string,offset,length){return blitBuffer(asciiToBytes(string),buf,offset,length)}function latin1Write(buf,string,offset,length){return asciiWrite(buf,string,offset,length)}function base64Write(buf,string,offset,length){return blitBuffer(base64ToBytes(string),buf,offset,length)}function ucs2Write(buf,string,offset,length){return blitBuffer(utf16leToBytes(string,buf.length-offset),buf,offset,length)}Buffer.prototype.write=function write(string,offset,length,encoding){if(offset===undefined){encoding="utf8";length=this.length;offset=0}else if(length===undefined&&typeof offset==="string"){encoding=offset;length=this.length;offset=0}else if(isFinite(offset)){offset=offset>>>0;if(isFinite(length)){length=length>>>0;if(encoding===undefined)encoding="utf8"}else{encoding=length;length=undefined}}else{throw new Error("Buffer.write(string, encoding, offset[, length]) is no longer supported")}var remaining=this.length-offset;if(length===undefined||length>remaining)length=remaining;if(string.length>0&&(length<0||offset<0)||offset>this.length){throw new RangeError("Attempt to write outside buffer bounds")}if(!encoding)encoding="utf8";var loweredCase=false;for(;;){switch(encoding){case"hex":return hexWrite(this,string,offset,length);case"utf8":case"utf-8":return utf8Write(this,string,offset,length);case"ascii":return asciiWrite(this,string,offset,length);case"latin1":case"binary":return latin1Write(this,string,offset,length);case"base64":return base64Write(this,string,offset,length);case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return ucs2Write(this,string,offset,length);default:if(loweredCase)throw new TypeError("Unknown encoding: "+encoding);encoding=(""+encoding).toLowerCase();loweredCase=true}}};Buffer.prototype.toJSON=function toJSON(){return{type:"Buffer",data:Array.prototype.slice.call(this._arr||this,0)}};function base64Slice(buf,start,end){if(start===0&&end===buf.length){return base64.fromByteArray(buf)}else{return base64.fromByteArray(buf.slice(start,end))}}function utf8Slice(buf,start,end){end=Math.min(buf.length,end);var res=[];var i=start;while(i<end){var firstByte=buf[i];var codePoint=null;var bytesPerSequence=firstByte>239?4:firstByte>223?3:firstByte>191?2:1;if(i+bytesPerSequence<=end){var secondByte,thirdByte,fourthByte,tempCodePoint;switch(bytesPerSequence){case 1:if(firstByte<128){codePoint=firstByte}break;case 2:secondByte=buf[i+1];if((secondByte&192)===128){tempCodePoint=(firstByte&31)<<6|secondByte&63;if(tempCodePoint>127){codePoint=tempCodePoint}}break;case 3:secondByte=buf[i+1];thirdByte=buf[i+2];if((secondByte&192)===128&&(thirdByte&192)===128){tempCodePoint=(firstByte&15)<<12|(secondByte&63)<<6|thirdByte&63;if(tempCodePoint>2047&&(tempCodePoint<55296||tempCodePoint>57343)){codePoint=tempCodePoint}}break;case 4:secondByte=buf[i+1];thirdByte=buf[i+2];fourthByte=buf[i+3];if((secondByte&192)===128&&(thirdByte&192)===128&&(fourthByte&192)===128){tempCodePoint=(firstByte&15)<<18|(secondByte&63)<<12|(thirdByte&63)<<6|fourthByte&63;if(tempCodePoint>65535&&tempCodePoint<1114112){codePoint=tempCodePoint}}}}if(codePoint===null){codePoint=65533;bytesPerSequence=1}else if(codePoint>65535){codePoint-=65536;res.push(codePoint>>>10&1023|55296);codePoint=56320|codePoint&1023}res.push(codePoint);i+=bytesPerSequence}return decodeCodePointsArray(res)}var MAX_ARGUMENTS_LENGTH=4096;function decodeCodePointsArray(codePoints){var len=codePoints.length;if(len<=MAX_ARGUMENTS_LENGTH){return String.fromCharCode.apply(String,codePoints)}var res="";var i=0;while(i<len){res+=String.fromCharCode.apply(String,codePoints.slice(i,i+=MAX_ARGUMENTS_LENGTH))}return res}function asciiSlice(buf,start,end){var ret="";end=Math.min(buf.length,end);for(var i=start;i<end;++i){ret+=String.fromCharCode(buf[i]&127)}return ret}function latin1Slice(buf,start,end){var ret="";end=Math.min(buf.length,end);for(var i=start;i<end;++i){ret+=String.fromCharCode(buf[i])}return ret}function hexSlice(buf,start,end){var len=buf.length;if(!start||start<0)start=0;if(!end||end<0||end>len)end=len;var out="";for(var i=start;i<end;++i){out+=toHex(buf[i])}return out}function utf16leSlice(buf,start,end){var bytes=buf.slice(start,end);var res="";for(var i=0;i<bytes.length;i+=2){res+=String.fromCharCode(bytes[i]+bytes[i+1]*256)}return res}Buffer.prototype.slice=function slice(start,end){var len=this.length;start=~~start;end=end===undefined?len:~~end;if(start<0){start+=len;if(start<0)start=0}else if(start>len){start=len}if(end<0){end+=len;if(end<0)end=0}else if(end>len){end=len}if(end<start)end=start;var newBuf=this.subarray(start,end);newBuf.__proto__=Buffer.prototype;return newBuf};function checkOffset(offset,ext,length){if(offset%1!==0||offset<0)throw new RangeError("offset is not uint");if(offset+ext>length)throw new RangeError("Trying to access beyond buffer length")}Buffer.prototype.readUIntLE=function readUIntLE(offset,byteLength,noAssert){offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert)checkOffset(offset,byteLength,this.length);var val=this[offset];var mul=1;var i=0;while(++i<byteLength&&(mul*=256)){val+=this[offset+i]*mul}return val};Buffer.prototype.readUIntBE=function readUIntBE(offset,byteLength,noAssert){offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert){checkOffset(offset,byteLength,this.length)}var val=this[offset+--byteLength];var mul=1;while(byteLength>0&&(mul*=256)){val+=this[offset+--byteLength]*mul}return val};Buffer.prototype.readUInt8=function readUInt8(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,1,this.length);return this[offset]};Buffer.prototype.readUInt16LE=function readUInt16LE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,2,this.length);return this[offset]|this[offset+1]<<8};Buffer.prototype.readUInt16BE=function readUInt16BE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,2,this.length);return this[offset]<<8|this[offset+1]};Buffer.prototype.readUInt32LE=function readUInt32LE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,4,this.length);return(this[offset]|this[offset+1]<<8|this[offset+2]<<16)+this[offset+3]*16777216};Buffer.prototype.readUInt32BE=function readUInt32BE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,4,this.length);return this[offset]*16777216+(this[offset+1]<<16|this[offset+2]<<8|this[offset+3])};Buffer.prototype.readIntLE=function readIntLE(offset,byteLength,noAssert){offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert)checkOffset(offset,byteLength,this.length);var val=this[offset];var mul=1;var i=0;while(++i<byteLength&&(mul*=256)){val+=this[offset+i]*mul}mul*=128;if(val>=mul)val-=Math.pow(2,8*byteLength);return val};Buffer.prototype.readIntBE=function readIntBE(offset,byteLength,noAssert){offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert)checkOffset(offset,byteLength,this.length);var i=byteLength;var mul=1;var val=this[offset+--i];while(i>0&&(mul*=256)){val+=this[offset+--i]*mul}mul*=128;if(val>=mul)val-=Math.pow(2,8*byteLength);return val};Buffer.prototype.readInt8=function readInt8(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,1,this.length);if(!(this[offset]&128))return this[offset];return(255-this[offset]+1)*-1};Buffer.prototype.readInt16LE=function readInt16LE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,2,this.length);var val=this[offset]|this[offset+1]<<8;return val&32768?val|4294901760:val};Buffer.prototype.readInt16BE=function readInt16BE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,2,this.length);var val=this[offset+1]|this[offset]<<8;return val&32768?val|4294901760:val};Buffer.prototype.readInt32LE=function readInt32LE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,4,this.length);return this[offset]|this[offset+1]<<8|this[offset+2]<<16|this[offset+3]<<24};Buffer.prototype.readInt32BE=function readInt32BE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,4,this.length);return this[offset]<<24|this[offset+1]<<16|this[offset+2]<<8|this[offset+3]};Buffer.prototype.readFloatLE=function readFloatLE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,4,this.length);return ieee754.read(this,offset,true,23,4)};Buffer.prototype.readFloatBE=function readFloatBE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,4,this.length);return ieee754.read(this,offset,false,23,4)};Buffer.prototype.readDoubleLE=function readDoubleLE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,8,this.length);return ieee754.read(this,offset,true,52,8)};Buffer.prototype.readDoubleBE=function readDoubleBE(offset,noAssert){offset=offset>>>0;if(!noAssert)checkOffset(offset,8,this.length);return ieee754.read(this,offset,false,52,8)};function checkInt(buf,value,offset,ext,max,min){if(!Buffer.isBuffer(buf))throw new TypeError('"buffer" argument must be a Buffer instance');if(value>max||value<min)throw new RangeError('"value" argument is out of bounds');if(offset+ext>buf.length)throw new RangeError("Index out of range")}Buffer.prototype.writeUIntLE=function writeUIntLE(value,offset,byteLength,noAssert){value=+value;offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert){var maxBytes=Math.pow(2,8*byteLength)-1;checkInt(this,value,offset,byteLength,maxBytes,0)}var mul=1;var i=0;this[offset]=value&255;while(++i<byteLength&&(mul*=256)){this[offset+i]=value/mul&255}return offset+byteLength};Buffer.prototype.writeUIntBE=function writeUIntBE(value,offset,byteLength,noAssert){value=+value;offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert){var maxBytes=Math.pow(2,8*byteLength)-1;checkInt(this,value,offset,byteLength,maxBytes,0)}var i=byteLength-1;var mul=1;this[offset+i]=value&255;while(--i>=0&&(mul*=256)){this[offset+i]=value/mul&255}return offset+byteLength};Buffer.prototype.writeUInt8=function writeUInt8(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,1,255,0);this[offset]=value&255;return offset+1};Buffer.prototype.writeUInt16LE=function writeUInt16LE(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,2,65535,0);this[offset]=value&255;this[offset+1]=value>>>8;return offset+2};Buffer.prototype.writeUInt16BE=function writeUInt16BE(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,2,65535,0);this[offset]=value>>>8;this[offset+1]=value&255;return offset+2};Buffer.prototype.writeUInt32LE=function writeUInt32LE(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,4,4294967295,0);this[offset+3]=value>>>24;this[offset+2]=value>>>16;this[offset+1]=value>>>8;this[offset]=value&255;return offset+4};Buffer.prototype.writeUInt32BE=function writeUInt32BE(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,4,4294967295,0);this[offset]=value>>>24;this[offset+1]=value>>>16;this[offset+2]=value>>>8;this[offset+3]=value&255;return offset+4};Buffer.prototype.writeIntLE=function writeIntLE(value,offset,byteLength,noAssert){value=+value;offset=offset>>>0;if(!noAssert){var limit=Math.pow(2,8*byteLength-1);checkInt(this,value,offset,byteLength,limit-1,-limit)}var i=0;var mul=1;var sub=0;this[offset]=value&255;while(++i<byteLength&&(mul*=256)){if(value<0&&sub===0&&this[offset+i-1]!==0){sub=1}this[offset+i]=(value/mul>>0)-sub&255}return offset+byteLength};Buffer.prototype.writeIntBE=function writeIntBE(value,offset,byteLength,noAssert){value=+value;offset=offset>>>0;if(!noAssert){var limit=Math.pow(2,8*byteLength-1);checkInt(this,value,offset,byteLength,limit-1,-limit)}var i=byteLength-1;var mul=1;var sub=0;this[offset+i]=value&255;while(--i>=0&&(mul*=256)){if(value<0&&sub===0&&this[offset+i+1]!==0){sub=1}this[offset+i]=(value/mul>>0)-sub&255}return offset+byteLength};Buffer.prototype.writeInt8=function writeInt8(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,1,127,-128);if(value<0)value=255+value+1;this[offset]=value&255;return offset+1};Buffer.prototype.writeInt16LE=function writeInt16LE(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,2,32767,-32768);this[offset]=value&255;this[offset+1]=value>>>8;return offset+2};Buffer.prototype.writeInt16BE=function writeInt16BE(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,2,32767,-32768);this[offset]=value>>>8;this[offset+1]=value&255;return offset+2};Buffer.prototype.writeInt32LE=function writeInt32LE(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,4,2147483647,-2147483648);this[offset]=value&255;this[offset+1]=value>>>8;this[offset+2]=value>>>16;this[offset+3]=value>>>24;return offset+4};Buffer.prototype.writeInt32BE=function writeInt32BE(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,4,2147483647,-2147483648);if(value<0)value=4294967295+value+1;this[offset]=value>>>24;this[offset+1]=value>>>16;this[offset+2]=value>>>8;this[offset+3]=value&255;return offset+4};function checkIEEE754(buf,value,offset,ext,max,min){if(offset+ext>buf.length)throw new RangeError("Index out of range");if(offset<0)throw new RangeError("Index out of range")}function writeFloat(buf,value,offset,littleEndian,noAssert){value=+value;offset=offset>>>0;if(!noAssert){checkIEEE754(buf,value,offset,4,3.4028234663852886e38,-3.4028234663852886e38)}ieee754.write(buf,value,offset,littleEndian,23,4);return offset+4}Buffer.prototype.writeFloatLE=function writeFloatLE(value,offset,noAssert){return writeFloat(this,value,offset,true,noAssert)};Buffer.prototype.writeFloatBE=function writeFloatBE(value,offset,noAssert){return writeFloat(this,value,offset,false,noAssert)};function writeDouble(buf,value,offset,littleEndian,noAssert){value=+value;offset=offset>>>0;if(!noAssert){checkIEEE754(buf,value,offset,8,1.7