`}};B.styles=[h.globalCss,nr],ie([I()],B.prototype,\"loading\",2),ie([I()],B.prototype,\"firstFetch\",2),ie([I()],B.prototype,\"search\",2),ie([I()],B.prototype,\"endReached\",2),B=ie([p(\"wcm-wallet-explorer-view\")],B);const dr=g`wcm-info-footer{flex-direction:column;align-items:center;display:flex;width:100%;padding:5px 0}wcm-text{text-align:center}`;var mr=Object.defineProperty,hr=Object.getOwnPropertyDescriptor,Ge=(e,o,r,a)=>{for(var t=a>1?void 0:a?hr(o,r):o,l=e.length-1,i;l>=0;l--)(i=e[l])&&(t=(a?i(o,r,t):i(t))||t);return a&&t&&mr(o,r,t),t};let we=class extends w{constructor(){super(),this.isError=!1,this.openWebWallet()}onFormatAndRedirect(e){const{desktop:o,name:r}=m.getWalletRouterData(),a=o?.universal;if(a){const t=m.formatUniversalUrl(a,e,r);m.openHref(t,\"_blank\")}}openWebWallet(){const{walletConnectUri:e}=R.state,o=m.getWalletRouterData();c.setRecentWallet(o),e&&this.onFormatAndRedirect(e)}render(){const{name:e,id:o,image_id:r}=m.getWalletRouterData(),{isMobile:a,isDesktop:t}=c.getCachedRouterWalletPlatforms(),l=m.isMobile();return n`${`${e} web app has opened in a new tab. Go there, accept the connection, and come back`}Retry`}};we.styles=[h.globalCss,dr],Ge([I()],we.prototype,\"isError\",2),we=Ge([p(\"wcm-web-connecting-view\")],we);export{ae as WcmModal,j as WcmQrCode};\n","'use strict'\n\nmodule.exports = function encodeUtf8 (input) {\n var result = []\n var size = input.length\n\n for (var index = 0; index < size; index++) {\n var point = input.charCodeAt(index)\n\n if (point >= 0xD800 && point <= 0xDBFF && size > index + 1) {\n var second = input.charCodeAt(index + 1)\n\n if (second >= 0xDC00 && second <= 0xDFFF) {\n // https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae\n point = (point - 0xD800) * 0x400 + second - 0xDC00 + 0x10000\n index += 1\n }\n }\n\n // US-ASCII\n if (point < 0x80) {\n result.push(point)\n continue\n }\n\n // 2-byte UTF-8\n if (point < 0x800) {\n result.push((point >> 6) | 192)\n result.push((point & 63) | 128)\n continue\n }\n\n // 3-byte UTF-8\n if (point < 0xD800 || (point >= 0xE000 && point < 0x10000)) {\n result.push((point >> 12) | 224)\n result.push(((point >> 6) & 63) | 128)\n result.push((point & 63) | 128)\n continue\n }\n\n // 4-byte UTF-8\n if (point >= 0x10000 && point <= 0x10FFFF) {\n result.push((point >> 18) | 240)\n result.push(((point >> 12) & 63) | 128)\n result.push(((point >> 6) & 63) | 128)\n result.push((point & 63) | 128)\n continue\n }\n\n // Invalid character\n result.push(0xEF, 0xBF, 0xBD)\n }\n\n return new Uint8Array(result).buffer\n}\n","const Utils = require('./utils')\n\nfunction getColorAttrib (color, attrib) {\n const alpha = color.a / 255\n const str = attrib + '=\"' + color.hex + '\"'\n\n return alpha < 1\n ? str + ' ' + attrib + '-opacity=\"' + alpha.toFixed(2).slice(1) + '\"'\n : str\n}\n\nfunction svgCmd (cmd, x, y) {\n let str = cmd + x\n if (typeof y !== 'undefined') str += ' ' + y\n\n return str\n}\n\nfunction qrToPath (data, size, margin) {\n let path = ''\n let moveBy = 0\n let newRow = false\n let lineLength = 0\n\n for (let i = 0; i < data.length; i++) {\n const col = Math.floor(i % size)\n const row = Math.floor(i / size)\n\n if (!col && !newRow) newRow = true\n\n if (data[i]) {\n lineLength++\n\n if (!(i > 0 && col > 0 && data[i - 1])) {\n path += newRow\n ? svgCmd('M', col + margin, 0.5 + row + margin)\n : svgCmd('m', moveBy, 0)\n\n moveBy = 0\n newRow = false\n }\n\n if (!(col + 1 < size && data[i + 1])) {\n path += svgCmd('h', lineLength)\n lineLength = 0\n }\n } else {\n moveBy++\n }\n }\n\n return path\n}\n\nexports.render = function render (qrData, options, cb) {\n const opts = Utils.getOptions(options)\n const size = qrData.modules.size\n const data = qrData.modules.data\n const qrcodesize = size + opts.margin * 2\n\n const bg = !opts.color.light.a\n ? ''\n : ''\n\n const path =\n ''\n\n const viewBox = 'viewBox=\"' + '0 0 ' + qrcodesize + ' ' + qrcodesize + '\"'\n\n const width = !opts.width ? '' : 'width=\"' + opts.width + '\" height=\"' + opts.width + '\" '\n\n const svgTag = '\\n'\n\n if (typeof cb === 'function') {\n cb(null, svgTag)\n }\n\n return svgTag\n}\n","const ECLevel = require('./error-correction-level')\r\n\r\nconst EC_BLOCKS_TABLE = [\r\n// L M Q H\r\n 1, 1, 1, 1,\r\n 1, 1, 1, 1,\r\n 1, 1, 2, 2,\r\n 1, 2, 2, 4,\r\n 1, 2, 4, 4,\r\n 2, 4, 4, 4,\r\n 2, 4, 6, 5,\r\n 2, 4, 6, 6,\r\n 2, 5, 8, 8,\r\n 4, 5, 8, 8,\r\n 4, 5, 8, 11,\r\n 4, 8, 10, 11,\r\n 4, 9, 12, 16,\r\n 4, 9, 16, 16,\r\n 6, 10, 12, 18,\r\n 6, 10, 17, 16,\r\n 6, 11, 16, 19,\r\n 6, 13, 18, 21,\r\n 7, 14, 21, 25,\r\n 8, 16, 20, 25,\r\n 8, 17, 23, 25,\r\n 9, 17, 23, 34,\r\n 9, 18, 25, 30,\r\n 10, 20, 27, 32,\r\n 12, 21, 29, 35,\r\n 12, 23, 34, 37,\r\n 12, 25, 34, 40,\r\n 13, 26, 35, 42,\r\n 14, 28, 38, 45,\r\n 15, 29, 40, 48,\r\n 16, 31, 43, 51,\r\n 17, 33, 45, 54,\r\n 18, 35, 48, 57,\r\n 19, 37, 51, 60,\r\n 19, 38, 53, 63,\r\n 20, 40, 56, 66,\r\n 21, 43, 59, 70,\r\n 22, 45, 62, 74,\r\n 24, 47, 65, 77,\r\n 25, 49, 68, 81\r\n]\r\n\r\nconst EC_CODEWORDS_TABLE = [\r\n// L M Q H\r\n 7, 10, 13, 17,\r\n 10, 16, 22, 28,\r\n 15, 26, 36, 44,\r\n 20, 36, 52, 64,\r\n 26, 48, 72, 88,\r\n 36, 64, 96, 112,\r\n 40, 72, 108, 130,\r\n 48, 88, 132, 156,\r\n 60, 110, 160, 192,\r\n 72, 130, 192, 224,\r\n 80, 150, 224, 264,\r\n 96, 176, 260, 308,\r\n 104, 198, 288, 352,\r\n 120, 216, 320, 384,\r\n 132, 240, 360, 432,\r\n 144, 280, 408, 480,\r\n 168, 308, 448, 532,\r\n 180, 338, 504, 588,\r\n 196, 364, 546, 650,\r\n 224, 416, 600, 700,\r\n 224, 442, 644, 750,\r\n 252, 476, 690, 816,\r\n 270, 504, 750, 900,\r\n 300, 560, 810, 960,\r\n 312, 588, 870, 1050,\r\n 336, 644, 952, 1110,\r\n 360, 700, 1020, 1200,\r\n 390, 728, 1050, 1260,\r\n 420, 784, 1140, 1350,\r\n 450, 812, 1200, 1440,\r\n 480, 868, 1290, 1530,\r\n 510, 924, 1350, 1620,\r\n 540, 980, 1440, 1710,\r\n 570, 1036, 1530, 1800,\r\n 570, 1064, 1590, 1890,\r\n 600, 1120, 1680, 1980,\r\n 630, 1204, 1770, 2100,\r\n 660, 1260, 1860, 2220,\r\n 720, 1316, 1950, 2310,\r\n 750, 1372, 2040, 2430\r\n]\r\n\r\n/**\r\n * Returns the number of error correction block that the QR Code should contain\r\n * for the specified version and error correction level.\r\n *\r\n * @param {Number} version QR Code version\r\n * @param {Number} errorCorrectionLevel Error correction level\r\n * @return {Number} Number of error correction blocks\r\n */\r\nexports.getBlocksCount = function getBlocksCount (version, errorCorrectionLevel) {\r\n switch (errorCorrectionLevel) {\r\n case ECLevel.L:\r\n return EC_BLOCKS_TABLE[(version - 1) * 4 + 0]\r\n case ECLevel.M:\r\n return EC_BLOCKS_TABLE[(version - 1) * 4 + 1]\r\n case ECLevel.Q:\r\n return EC_BLOCKS_TABLE[(version - 1) * 4 + 2]\r\n case ECLevel.H:\r\n return EC_BLOCKS_TABLE[(version - 1) * 4 + 3]\r\n default:\r\n return undefined\r\n }\r\n}\r\n\r\n/**\r\n * Returns the number of error correction codewords to use for the specified\r\n * version and error correction level.\r\n *\r\n * @param {Number} version QR Code version\r\n * @param {Number} errorCorrectionLevel Error correction level\r\n * @return {Number} Number of error correction codewords\r\n */\r\nexports.getTotalCodewordsCount = function getTotalCodewordsCount (version, errorCorrectionLevel) {\r\n switch (errorCorrectionLevel) {\r\n case ECLevel.L:\r\n return EC_CODEWORDS_TABLE[(version - 1) * 4 + 0]\r\n case ECLevel.M:\r\n return EC_CODEWORDS_TABLE[(version - 1) * 4 + 1]\r\n case ECLevel.Q:\r\n return EC_CODEWORDS_TABLE[(version - 1) * 4 + 2]\r\n case ECLevel.H:\r\n return EC_CODEWORDS_TABLE[(version - 1) * 4 + 3]\r\n default:\r\n return undefined\r\n }\r\n}\r\n","const Mode = require('./mode')\nconst Utils = require('./utils')\n\nfunction KanjiData (data) {\n this.mode = Mode.KANJI\n this.data = data\n}\n\nKanjiData.getBitsLength = function getBitsLength (length) {\n return length * 13\n}\n\nKanjiData.prototype.getLength = function getLength () {\n return this.data.length\n}\n\nKanjiData.prototype.getBitsLength = function getBitsLength () {\n return KanjiData.getBitsLength(this.data.length)\n}\n\nKanjiData.prototype.write = function (bitBuffer) {\n let i\n\n // In the Shift JIS system, Kanji characters are represented by a two byte combination.\n // These byte values are shifted from the JIS X 0208 values.\n // JIS X 0208 gives details of the shift coded representation.\n for (i = 0; i < this.data.length; i++) {\n let value = Utils.toSJIS(this.data[i])\n\n // For characters with Shift JIS values from 0x8140 to 0x9FFC:\n if (value >= 0x8140 && value <= 0x9FFC) {\n // Subtract 0x8140 from Shift JIS value\n value -= 0x8140\n\n // For characters with Shift JIS values from 0xE040 to 0xEBBF\n } else if (value >= 0xE040 && value <= 0xEBBF) {\n // Subtract 0xC140 from Shift JIS value\n value -= 0xC140\n } else {\n throw new Error(\n 'Invalid SJIS character: ' + this.data[i] + '\\n' +\n 'Make sure your charset is UTF-8')\n }\n\n // Multiply most significant byte of result by 0xC0\n // and add least significant byte to product\n value = (((value >>> 8) & 0xff) * 0xC0) + (value & 0xff)\n\n // Convert result to a 13-bit binary string\n bitBuffer.put(value, 13)\n }\n}\n\nmodule.exports = KanjiData\n","const numeric = '[0-9]+'\nconst alphanumeric = '[A-Z $%*+\\\\-./:]+'\nlet kanji = '(?:[u3000-u303F]|[u3040-u309F]|[u30A0-u30FF]|' +\n '[uFF00-uFFEF]|[u4E00-u9FAF]|[u2605-u2606]|[u2190-u2195]|u203B|' +\n '[u2010u2015u2018u2019u2025u2026u201Cu201Du2225u2260]|' +\n '[u0391-u0451]|[u00A7u00A8u00B1u00B4u00D7u00F7])+'\nkanji = kanji.replace(/u/g, '\\\\u')\n\nconst byte = '(?:(?![A-Z0-9 $%*+\\\\-./:]|' + kanji + ')(?:.|[\\r\\n]))+'\n\nexports.KANJI = new RegExp(kanji, 'g')\nexports.BYTE_KANJI = new RegExp('[^A-Z0-9 $%*+\\\\-./:]+', 'g')\nexports.BYTE = new RegExp(byte, 'g')\nexports.NUMERIC = new RegExp(numeric, 'g')\nexports.ALPHANUMERIC = new RegExp(alphanumeric, 'g')\n\nconst TEST_KANJI = new RegExp('^' + kanji + '$')\nconst TEST_NUMERIC = new RegExp('^' + numeric + '$')\nconst TEST_ALPHANUMERIC = new RegExp('^[A-Z0-9 $%*+\\\\-./:]+$')\n\nexports.testKanji = function testKanji (str) {\n return TEST_KANJI.test(str)\n}\n\nexports.testNumeric = function testNumeric (str) {\n return TEST_NUMERIC.test(str)\n}\n\nexports.testAlphanumeric = function testAlphanumeric (str) {\n return TEST_ALPHANUMERIC.test(str)\n}\n","/**\n * Helper class to handle QR Code symbol modules\n *\n * @param {Number} size Symbol size\n */\nfunction BitMatrix (size) {\n if (!size || size < 1) {\n throw new Error('BitMatrix size must be defined and greater than 0')\n }\n\n this.size = size\n this.data = new Uint8Array(size * size)\n this.reservedBit = new Uint8Array(size * size)\n}\n\n/**\n * Set bit value at specified location\n * If reserved flag is set, this bit will be ignored during masking process\n *\n * @param {Number} row\n * @param {Number} col\n * @param {Boolean} value\n * @param {Boolean} reserved\n */\nBitMatrix.prototype.set = function (row, col, value, reserved) {\n const index = row * this.size + col\n this.data[index] = value\n if (reserved) this.reservedBit[index] = true\n}\n\n/**\n * Returns bit value at specified location\n *\n * @param {Number} row\n * @param {Number} col\n * @return {Boolean}\n */\nBitMatrix.prototype.get = function (row, col) {\n return this.data[row * this.size + col]\n}\n\n/**\n * Applies xor operator at specified location\n * (used during masking process)\n *\n * @param {Number} row\n * @param {Number} col\n * @param {Boolean} value\n */\nBitMatrix.prototype.xor = function (row, col, value) {\n this.data[row * this.size + col] ^= value\n}\n\n/**\n * Check if bit at specified location is reserved\n *\n * @param {Number} row\n * @param {Number} col\n * @return {Boolean}\n */\nBitMatrix.prototype.isReserved = function (row, col) {\n return this.reservedBit[row * this.size + col]\n}\n\nmodule.exports = BitMatrix\n","/**\n * @license\n * Copyright 2017 Google LLC\n * SPDX-License-Identifier: BSD-3-Clause\n */\nconst t={ATTRIBUTE:1,CHILD:2,PROPERTY:3,BOOLEAN_ATTRIBUTE:4,EVENT:5,ELEMENT:6},e=t=>(...e)=>({_$litDirective$:t,values:e});class i{constructor(t){}get _$AU(){return this._$AM._$AU}_$AT(t,e,i){this._$Ct=t,this._$AM=e,this._$Ci=i}_$AS(t,e){return this.update(t,e)}update(t,e){return this.render(...e)}}export{i as Directive,t as PartType,e as directive};\n//# sourceMappingURL=directive.js.map\n","import{noChange as t}from\"../lit-html.js\";import{directive as i,Directive as s,PartType as r}from\"../directive.js\";\n/**\n * @license\n * Copyright 2018 Google LLC\n * SPDX-License-Identifier: BSD-3-Clause\n */const o=i(class extends s{constructor(t){var i;if(super(t),t.type!==r.ATTRIBUTE||\"class\"!==t.name||(null===(i=t.strings)||void 0===i?void 0:i.length)>2)throw Error(\"`classMap()` can only be used in the `class` attribute and must be the only part in the attribute.\")}render(t){return\" \"+Object.keys(t).filter((i=>t[i])).join(\" \")+\" \"}update(i,[s]){var r,o;if(void 0===this.it){this.it=new Set,void 0!==i.strings&&(this.nt=new Set(i.strings.join(\" \").split(/\\s/).filter((t=>\"\"!==t))));for(const t in s)s[t]&&!(null===(r=this.nt)||void 0===r?void 0:r.has(t))&&this.it.add(t);return this.render(s)}const e=i.element.classList;this.it.forEach((t=>{t in s||(e.remove(t),this.it.delete(t))}));for(const t in s){const i=!!s[t];i===this.it.has(t)||(null===(o=this.nt)||void 0===o?void 0:o.has(t))||(i?(e.add(t),this.it.add(t)):(e.remove(t),this.it.delete(t)))}return t}});export{o as classMap};\n//# sourceMappingURL=class-map.js.map\n","/**\n * @license\n * Copyright 2019 Google LLC\n * SPDX-License-Identifier: BSD-3-Clause\n */\nconst t=window,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow)&&\"adoptedStyleSheets\"in Document.prototype&&\"replace\"in CSSStyleSheet.prototype,s=Symbol(),n=new WeakMap;class o{constructor(t,e,n){if(this._$cssResult$=!0,n!==s)throw Error(\"CSSResult is not constructable. Use `unsafeCSS` or `css` instead.\");this.cssText=t,this.t=e}get styleSheet(){let t=this.o;const s=this.t;if(e&&void 0===t){const e=void 0!==s&&1===s.length;e&&(t=n.get(s)),void 0===t&&((this.o=t=new CSSStyleSheet).replaceSync(this.cssText),e&&n.set(s,t))}return t}toString(){return this.cssText}}const r=t=>new o(\"string\"==typeof t?t:t+\"\",void 0,s),i=(t,...e)=>{const n=1===t.length?t[0]:e.reduce(((e,s,n)=>e+(t=>{if(!0===t._$cssResult$)return t.cssText;if(\"number\"==typeof t)return t;throw Error(\"Value passed to 'css' function must be a 'css' function result: \"+t+\". Use 'unsafeCSS' to pass non-literal values, but take care to ensure page security.\")})(s)+t[n+1]),t[0]);return new o(n,t,s)},S=(s,n)=>{e?s.adoptedStyleSheets=n.map((t=>t instanceof CSSStyleSheet?t:t.styleSheet)):n.forEach((e=>{const n=document.createElement(\"style\"),o=t.litNonce;void 0!==o&&n.setAttribute(\"nonce\",o),n.textContent=e.cssText,s.appendChild(n)}))},c=e?t=>t:t=>t instanceof CSSStyleSheet?(t=>{let e=\"\";for(const s of t.cssRules)e+=s.cssText;return r(e)})(t):t;export{o as CSSResult,S as adoptStyles,i as css,c as getCompatibleStyle,e as supportsAdoptingStyleSheets,r as unsafeCSS};\n//# sourceMappingURL=css-tag.js.map\n","import{getCompatibleStyle as t,adoptStyles as i}from\"./css-tag.js\";export{CSSResult,adoptStyles,css,getCompatibleStyle,supportsAdoptingStyleSheets,unsafeCSS}from\"./css-tag.js\";\n/**\n * @license\n * Copyright 2017 Google LLC\n * SPDX-License-Identifier: BSD-3-Clause\n */var s;const e=window,r=e.trustedTypes,h=r?r.emptyScript:\"\",o=e.reactiveElementPolyfillSupport,n={toAttribute(t,i){switch(i){case Boolean:t=t?h:null;break;case Object:case Array:t=null==t?t:JSON.stringify(t)}return t},fromAttribute(t,i){let s=t;switch(i){case Boolean:s=null!==t;break;case Number:s=null===t?null:Number(t);break;case Object:case Array:try{s=JSON.parse(t)}catch(t){s=null}}return s}},a=(t,i)=>i!==t&&(i==i||t==t),l={attribute:!0,type:String,converter:n,reflect:!1,hasChanged:a},d=\"finalized\";class u extends HTMLElement{constructor(){super(),this._$Ei=new Map,this.isUpdatePending=!1,this.hasUpdated=!1,this._$El=null,this.u()}static addInitializer(t){var i;this.finalize(),(null!==(i=this.h)&&void 0!==i?i:this.h=[]).push(t)}static get observedAttributes(){this.finalize();const t=[];return this.elementProperties.forEach(((i,s)=>{const e=this._$Ep(s,i);void 0!==e&&(this._$Ev.set(e,s),t.push(e))})),t}static createProperty(t,i=l){if(i.state&&(i.attribute=!1),this.finalize(),this.elementProperties.set(t,i),!i.noAccessor&&!this.prototype.hasOwnProperty(t)){const s=\"symbol\"==typeof t?Symbol():\"__\"+t,e=this.getPropertyDescriptor(t,s,i);void 0!==e&&Object.defineProperty(this.prototype,t,e)}}static getPropertyDescriptor(t,i,s){return{get(){return this[i]},set(e){const r=this[t];this[i]=e,this.requestUpdate(t,r,s)},configurable:!0,enumerable:!0}}static getPropertyOptions(t){return this.elementProperties.get(t)||l}static finalize(){if(this.hasOwnProperty(d))return!1;this[d]=!0;const t=Object.getPrototypeOf(this);if(t.finalize(),void 0!==t.h&&(this.h=[...t.h]),this.elementProperties=new Map(t.elementProperties),this._$Ev=new Map,this.hasOwnProperty(\"properties\")){const t=this.properties,i=[...Object.getOwnPropertyNames(t),...Object.getOwnPropertySymbols(t)];for(const s of i)this.createProperty(s,t[s])}return this.elementStyles=this.finalizeStyles(this.styles),!0}static finalizeStyles(i){const s=[];if(Array.isArray(i)){const e=new Set(i.flat(1/0).reverse());for(const i of e)s.unshift(t(i))}else void 0!==i&&s.push(t(i));return s}static _$Ep(t,i){const s=i.attribute;return!1===s?void 0:\"string\"==typeof s?s:\"string\"==typeof t?t.toLowerCase():void 0}u(){var t;this._$E_=new Promise((t=>this.enableUpdating=t)),this._$AL=new Map,this._$Eg(),this.requestUpdate(),null===(t=this.constructor.h)||void 0===t||t.forEach((t=>t(this)))}addController(t){var i,s;(null!==(i=this._$ES)&&void 0!==i?i:this._$ES=[]).push(t),void 0!==this.renderRoot&&this.isConnected&&(null===(s=t.hostConnected)||void 0===s||s.call(t))}removeController(t){var i;null===(i=this._$ES)||void 0===i||i.splice(this._$ES.indexOf(t)>>>0,1)}_$Eg(){this.constructor.elementProperties.forEach(((t,i)=>{this.hasOwnProperty(i)&&(this._$Ei.set(i,this[i]),delete this[i])}))}createRenderRoot(){var t;const s=null!==(t=this.shadowRoot)&&void 0!==t?t:this.attachShadow(this.constructor.shadowRootOptions);return i(s,this.constructor.elementStyles),s}connectedCallback(){var t;void 0===this.renderRoot&&(this.renderRoot=this.createRenderRoot()),this.enableUpdating(!0),null===(t=this._$ES)||void 0===t||t.forEach((t=>{var i;return null===(i=t.hostConnected)||void 0===i?void 0:i.call(t)}))}enableUpdating(t){}disconnectedCallback(){var t;null===(t=this._$ES)||void 0===t||t.forEach((t=>{var i;return null===(i=t.hostDisconnected)||void 0===i?void 0:i.call(t)}))}attributeChangedCallback(t,i,s){this._$AK(t,s)}_$EO(t,i,s=l){var e;const r=this.constructor._$Ep(t,s);if(void 0!==r&&!0===s.reflect){const h=(void 0!==(null===(e=s.converter)||void 0===e?void 0:e.toAttribute)?s.converter:n).toAttribute(i,s.type);this._$El=t,null==h?this.removeAttribute(r):this.setAttribute(r,h),this._$El=null}}_$AK(t,i){var s;const e=this.constructor,r=e._$Ev.get(t);if(void 0!==r&&this._$El!==r){const t=e.getPropertyOptions(r),h=\"function\"==typeof t.converter?{fromAttribute:t.converter}:void 0!==(null===(s=t.converter)||void 0===s?void 0:s.fromAttribute)?t.converter:n;this._$El=r,this[r]=h.fromAttribute(i,t.type),this._$El=null}}requestUpdate(t,i,s){let e=!0;void 0!==t&&(((s=s||this.constructor.getPropertyOptions(t)).hasChanged||a)(this[t],i)?(this._$AL.has(t)||this._$AL.set(t,i),!0===s.reflect&&this._$El!==t&&(void 0===this._$EC&&(this._$EC=new Map),this._$EC.set(t,s))):e=!1),!this.isUpdatePending&&e&&(this._$E_=this._$Ej())}async _$Ej(){this.isUpdatePending=!0;try{await this._$E_}catch(t){Promise.reject(t)}const t=this.scheduleUpdate();return null!=t&&await t,!this.isUpdatePending}scheduleUpdate(){return this.performUpdate()}performUpdate(){var t;if(!this.isUpdatePending)return;this.hasUpdated,this._$Ei&&(this._$Ei.forEach(((t,i)=>this[i]=t)),this._$Ei=void 0);let i=!1;const s=this._$AL;try{i=this.shouldUpdate(s),i?(this.willUpdate(s),null===(t=this._$ES)||void 0===t||t.forEach((t=>{var i;return null===(i=t.hostUpdate)||void 0===i?void 0:i.call(t)})),this.update(s)):this._$Ek()}catch(t){throw i=!1,this._$Ek(),t}i&&this._$AE(s)}willUpdate(t){}_$AE(t){var i;null===(i=this._$ES)||void 0===i||i.forEach((t=>{var i;return null===(i=t.hostUpdated)||void 0===i?void 0:i.call(t)})),this.hasUpdated||(this.hasUpdated=!0,this.firstUpdated(t)),this.updated(t)}_$Ek(){this._$AL=new Map,this.isUpdatePending=!1}get updateComplete(){return this.getUpdateComplete()}getUpdateComplete(){return this._$E_}shouldUpdate(t){return!0}update(t){void 0!==this._$EC&&(this._$EC.forEach(((t,i)=>this._$EO(i,this[i],t))),this._$EC=void 0),this._$Ek()}updated(t){}firstUpdated(t){}}u[d]=!0,u.elementProperties=new Map,u.elementStyles=[],u.shadowRootOptions={mode:\"open\"},null==o||o({ReactiveElement:u}),(null!==(s=e.reactiveElementVersions)&&void 0!==s?s:e.reactiveElementVersions=[]).push(\"1.6.2\");export{u as ReactiveElement,n as defaultConverter,a as notEqual};\n//# sourceMappingURL=reactive-element.js.map\n","import{ReactiveElement as t}from\"@lit/reactive-element\";export*from\"@lit/reactive-element\";import{render as e,noChange as i}from\"lit-html\";export*from\"lit-html\";\n/**\n * @license\n * Copyright 2017 Google LLC\n * SPDX-License-Identifier: BSD-3-Clause\n */var l,o;const r=t;class s extends t{constructor(){super(...arguments),this.renderOptions={host:this},this._$Do=void 0}createRenderRoot(){var t,e;const i=super.createRenderRoot();return null!==(t=(e=this.renderOptions).renderBefore)&&void 0!==t||(e.renderBefore=i.firstChild),i}update(t){const i=this.render();this.hasUpdated||(this.renderOptions.isConnected=this.isConnected),super.update(t),this._$Do=e(i,this.renderRoot,this.renderOptions)}connectedCallback(){var t;super.connectedCallback(),null===(t=this._$Do)||void 0===t||t.setConnected(!0)}disconnectedCallback(){var t;super.disconnectedCallback(),null===(t=this._$Do)||void 0===t||t.setConnected(!1)}render(){return i}}s.finalized=!0,s._$litElement$=!0,null===(l=globalThis.litElementHydrateSupport)||void 0===l||l.call(globalThis,{LitElement:s});const n=globalThis.litElementPolyfillSupport;null==n||n({LitElement:s});const h={_$AK:(t,e,i)=>{t._$AK(e,i)},_$AL:t=>t._$AL};(null!==(o=globalThis.litElementVersions)&&void 0!==o?o:globalThis.litElementVersions=[]).push(\"3.3.2\");export{s as LitElement,r as UpdatingElement,h as _$LE};\n//# sourceMappingURL=lit-element.js.map\n","const Polynomial = require('./polynomial')\n\nfunction ReedSolomonEncoder (degree) {\n this.genPoly = undefined\n this.degree = degree\n\n if (this.degree) this.initialize(this.degree)\n}\n\n/**\n * Initialize the encoder.\n * The input param should correspond to the number of error correction codewords.\n *\n * @param {Number} degree\n */\nReedSolomonEncoder.prototype.initialize = function initialize (degree) {\n // create an irreducible generator polynomial\n this.degree = degree\n this.genPoly = Polynomial.generateECPolynomial(this.degree)\n}\n\n/**\n * Encodes a chunk of data\n *\n * @param {Uint8Array} data Buffer containing input data\n * @return {Uint8Array} Buffer containing encoded data\n */\nReedSolomonEncoder.prototype.encode = function encode (data) {\n if (!this.genPoly) {\n throw new Error('Encoder not initialized')\n }\n\n // Calculate EC for this data block\n // extends data size to data+genPoly size\n const paddedData = new Uint8Array(data.length + this.degree)\n paddedData.set(data)\n\n // The error correction codewords are the remainder after dividing the data codewords\n // by a generator polynomial\n const remainder = Polynomial.mod(paddedData, this.genPoly)\n\n // return EC data blocks (last n byte, where n is the degree of genPoly)\n // If coefficients number in remainder are less than genPoly degree,\n // pad with 0s to the left to reach the needed number of coefficients\n const start = this.degree - remainder.length\n if (start > 0) {\n const buff = new Uint8Array(this.degree)\n buff.set(remainder, start)\n\n return buff\n }\n\n return remainder\n}\n\nmodule.exports = ReedSolomonEncoder\n","/**\n * Check if QR Code version is valid\n *\n * @param {Number} version QR Code version\n * @return {Boolean} true if valid version, false otherwise\n */\nexports.isValid = function isValid (version) {\n return !isNaN(version) && version >= 1 && version <= 40\n}\n","const getSymbolSize = require('./utils').getSymbolSize\nconst FINDER_PATTERN_SIZE = 7\n\n/**\n * Returns an array containing the positions of each finder pattern.\n * Each array's element represent the top-left point of the pattern as (x, y) coordinates\n *\n * @param {Number} version QR Code version\n * @return {Array} Array of coordinates\n */\nexports.getPositions = function getPositions (version) {\n const size = getSymbolSize(version)\n\n return [\n // top-left\n [0, 0],\n // top-right\n [size - FINDER_PATTERN_SIZE, 0],\n // bottom-left\n [0, size - FINDER_PATTERN_SIZE]\n ]\n}\n","// can-promise has a crash in some versions of react native that dont have\n// standard global objects\n// https://github.com/soldair/node-qrcode/issues/157\n\nmodule.exports = function () {\n return typeof Promise === 'function' && Promise.prototype && Promise.prototype.then\n}\n","const GF = require('./galois-field')\n\n/**\n * Multiplies two polynomials inside Galois Field\n *\n * @param {Uint8Array} p1 Polynomial\n * @param {Uint8Array} p2 Polynomial\n * @return {Uint8Array} Product of p1 and p2\n */\nexports.mul = function mul (p1, p2) {\n const coeff = new Uint8Array(p1.length + p2.length - 1)\n\n for (let i = 0; i < p1.length; i++) {\n for (let j = 0; j < p2.length; j++) {\n coeff[i + j] ^= GF.mul(p1[i], p2[j])\n }\n }\n\n return coeff\n}\n\n/**\n * Calculate the remainder of polynomials division\n *\n * @param {Uint8Array} divident Polynomial\n * @param {Uint8Array} divisor Polynomial\n * @return {Uint8Array} Remainder\n */\nexports.mod = function mod (divident, divisor) {\n let result = new Uint8Array(divident)\n\n while ((result.length - divisor.length) >= 0) {\n const coeff = result[0]\n\n for (let i = 0; i < divisor.length; i++) {\n result[i] ^= GF.mul(divisor[i], coeff)\n }\n\n // remove all zeros from buffer head\n let offset = 0\n while (offset < result.length && result[offset] === 0) offset++\n result = result.slice(offset)\n }\n\n return result\n}\n\n/**\n * Generate an irreducible generator polynomial of specified degree\n * (used by Reed-Solomon encoder)\n *\n * @param {Number} degree Degree of the generator polynomial\n * @return {Uint8Array} Buffer containing polynomial coefficients\n */\nexports.generateECPolynomial = function generateECPolynomial (degree) {\n let poly = new Uint8Array([1])\n for (let i = 0; i < degree; i++) {\n poly = exports.mul(poly, new Uint8Array([1, GF.exp(i)]))\n }\n\n return poly\n}\n","const Mode = require('./mode')\n\n/**\n * Array of characters available in alphanumeric mode\n *\n * As per QR Code specification, to each character\n * is assigned a value from 0 to 44 which in this case coincides\n * with the array index\n *\n * @type {Array}\n */\nconst ALPHA_NUM_CHARS = [\n '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',\n 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',\n 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',\n ' ', '$', '%', '*', '+', '-', '.', '/', ':'\n]\n\nfunction AlphanumericData (data) {\n this.mode = Mode.ALPHANUMERIC\n this.data = data\n}\n\nAlphanumericData.getBitsLength = function getBitsLength (length) {\n return 11 * Math.floor(length / 2) + 6 * (length % 2)\n}\n\nAlphanumericData.prototype.getLength = function getLength () {\n return this.data.length\n}\n\nAlphanumericData.prototype.getBitsLength = function getBitsLength () {\n return AlphanumericData.getBitsLength(this.data.length)\n}\n\nAlphanumericData.prototype.write = function write (bitBuffer) {\n let i\n\n // Input data characters are divided into groups of two characters\n // and encoded as 11-bit binary codes.\n for (i = 0; i + 2 <= this.data.length; i += 2) {\n // The character value of the first character is multiplied by 45\n let value = ALPHA_NUM_CHARS.indexOf(this.data[i]) * 45\n\n // The character value of the second digit is added to the product\n value += ALPHA_NUM_CHARS.indexOf(this.data[i + 1])\n\n // The sum is then stored as 11-bit binary number\n bitBuffer.put(value, 11)\n }\n\n // If the number of input data characters is not a multiple of two,\n // the character value of the final character is encoded as a 6-bit binary number.\n if (this.data.length % 2) {\n bitBuffer.put(ALPHA_NUM_CHARS.indexOf(this.data[i]), 6)\n }\n}\n\nmodule.exports = AlphanumericData\n","const Utils = require('./utils')\nconst ECLevel = require('./error-correction-level')\nconst BitBuffer = require('./bit-buffer')\nconst BitMatrix = require('./bit-matrix')\nconst AlignmentPattern = require('./alignment-pattern')\nconst FinderPattern = require('./finder-pattern')\nconst MaskPattern = require('./mask-pattern')\nconst ECCode = require('./error-correction-code')\nconst ReedSolomonEncoder = require('./reed-solomon-encoder')\nconst Version = require('./version')\nconst FormatInfo = require('./format-info')\nconst Mode = require('./mode')\nconst Segments = require('./segments')\n\n/**\n * QRCode for JavaScript\n *\n * modified by Ryan Day for nodejs support\n * Copyright (c) 2011 Ryan Day\n *\n * Licensed under the MIT license:\n * http://www.opensource.org/licenses/mit-license.php\n *\n//---------------------------------------------------------------------\n// QRCode for JavaScript\n//\n// Copyright (c) 2009 Kazuhiko Arase\n//\n// URL: http://www.d-project.com/\n//\n// Licensed under the MIT license:\n// http://www.opensource.org/licenses/mit-license.php\n//\n// The word \"QR Code\" is registered trademark of\n// DENSO WAVE INCORPORATED\n// http://www.denso-wave.com/qrcode/faqpatent-e.html\n//\n//---------------------------------------------------------------------\n*/\n\n/**\n * Add finder patterns bits to matrix\n *\n * @param {BitMatrix} matrix Modules matrix\n * @param {Number} version QR Code version\n */\nfunction setupFinderPattern (matrix, version) {\n const size = matrix.size\n const pos = FinderPattern.getPositions(version)\n\n for (let i = 0; i < pos.length; i++) {\n const row = pos[i][0]\n const col = pos[i][1]\n\n for (let r = -1; r <= 7; r++) {\n if (row + r <= -1 || size <= row + r) continue\n\n for (let c = -1; c <= 7; c++) {\n if (col + c <= -1 || size <= col + c) continue\n\n if ((r >= 0 && r <= 6 && (c === 0 || c === 6)) ||\n (c >= 0 && c <= 6 && (r === 0 || r === 6)) ||\n (r >= 2 && r <= 4 && c >= 2 && c <= 4)) {\n matrix.set(row + r, col + c, true, true)\n } else {\n matrix.set(row + r, col + c, false, true)\n }\n }\n }\n }\n}\n\n/**\n * Add timing pattern bits to matrix\n *\n * Note: this function must be called before {@link setupAlignmentPattern}\n *\n * @param {BitMatrix} matrix Modules matrix\n */\nfunction setupTimingPattern (matrix) {\n const size = matrix.size\n\n for (let r = 8; r < size - 8; r++) {\n const value = r % 2 === 0\n matrix.set(r, 6, value, true)\n matrix.set(6, r, value, true)\n }\n}\n\n/**\n * Add alignment patterns bits to matrix\n *\n * Note: this function must be called after {@link setupTimingPattern}\n *\n * @param {BitMatrix} matrix Modules matrix\n * @param {Number} version QR Code version\n */\nfunction setupAlignmentPattern (matrix, version) {\n const pos = AlignmentPattern.getPositions(version)\n\n for (let i = 0; i < pos.length; i++) {\n const row = pos[i][0]\n const col = pos[i][1]\n\n for (let r = -2; r <= 2; r++) {\n for (let c = -2; c <= 2; c++) {\n if (r === -2 || r === 2 || c === -2 || c === 2 ||\n (r === 0 && c === 0)) {\n matrix.set(row + r, col + c, true, true)\n } else {\n matrix.set(row + r, col + c, false, true)\n }\n }\n }\n }\n}\n\n/**\n * Add version info bits to matrix\n *\n * @param {BitMatrix} matrix Modules matrix\n * @param {Number} version QR Code version\n */\nfunction setupVersionInfo (matrix, version) {\n const size = matrix.size\n const bits = Version.getEncodedBits(version)\n let row, col, mod\n\n for (let i = 0; i < 18; i++) {\n row = Math.floor(i / 3)\n col = i % 3 + size - 8 - 3\n mod = ((bits >> i) & 1) === 1\n\n matrix.set(row, col, mod, true)\n matrix.set(col, row, mod, true)\n }\n}\n\n/**\n * Add format info bits to matrix\n *\n * @param {BitMatrix} matrix Modules matrix\n * @param {ErrorCorrectionLevel} errorCorrectionLevel Error correction level\n * @param {Number} maskPattern Mask pattern reference value\n */\nfunction setupFormatInfo (matrix, errorCorrectionLevel, maskPattern) {\n const size = matrix.size\n const bits = FormatInfo.getEncodedBits(errorCorrectionLevel, maskPattern)\n let i, mod\n\n for (i = 0; i < 15; i++) {\n mod = ((bits >> i) & 1) === 1\n\n // vertical\n if (i < 6) {\n matrix.set(i, 8, mod, true)\n } else if (i < 8) {\n matrix.set(i + 1, 8, mod, true)\n } else {\n matrix.set(size - 15 + i, 8, mod, true)\n }\n\n // horizontal\n if (i < 8) {\n matrix.set(8, size - i - 1, mod, true)\n } else if (i < 9) {\n matrix.set(8, 15 - i - 1 + 1, mod, true)\n } else {\n matrix.set(8, 15 - i - 1, mod, true)\n }\n }\n\n // fixed module\n matrix.set(size - 8, 8, 1, true)\n}\n\n/**\n * Add encoded data bits to matrix\n *\n * @param {BitMatrix} matrix Modules matrix\n * @param {Uint8Array} data Data codewords\n */\nfunction setupData (matrix, data) {\n const size = matrix.size\n let inc = -1\n let row = size - 1\n let bitIndex = 7\n let byteIndex = 0\n\n for (let col = size - 1; col > 0; col -= 2) {\n if (col === 6) col--\n\n while (true) {\n for (let c = 0; c < 2; c++) {\n if (!matrix.isReserved(row, col - c)) {\n let dark = false\n\n if (byteIndex < data.length) {\n dark = (((data[byteIndex] >>> bitIndex) & 1) === 1)\n }\n\n matrix.set(row, col - c, dark)\n bitIndex--\n\n if (bitIndex === -1) {\n byteIndex++\n bitIndex = 7\n }\n }\n }\n\n row += inc\n\n if (row < 0 || size <= row) {\n row -= inc\n inc = -inc\n break\n }\n }\n }\n}\n\n/**\n * Create encoded codewords from data input\n *\n * @param {Number} version QR Code version\n * @param {ErrorCorrectionLevel} errorCorrectionLevel Error correction level\n * @param {ByteData} data Data input\n * @return {Uint8Array} Buffer containing encoded codewords\n */\nfunction createData (version, errorCorrectionLevel, segments) {\n // Prepare data buffer\n const buffer = new BitBuffer()\n\n segments.forEach(function (data) {\n // prefix data with mode indicator (4 bits)\n buffer.put(data.mode.bit, 4)\n\n // Prefix data with character count indicator.\n // The character count indicator is a string of bits that represents the\n // number of characters that are being encoded.\n // The character count indicator must be placed after the mode indicator\n // and must be a certain number of bits long, depending on the QR version\n // and data mode\n // @see {@link Mode.getCharCountIndicator}.\n buffer.put(data.getLength(), Mode.getCharCountIndicator(data.mode, version))\n\n // add binary data sequence to buffer\n data.write(buffer)\n })\n\n // Calculate required number of bits\n const totalCodewords = Utils.getSymbolTotalCodewords(version)\n const ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel)\n const dataTotalCodewordsBits = (totalCodewords - ecTotalCodewords) * 8\n\n // Add a terminator.\n // If the bit string is shorter than the total number of required bits,\n // a terminator of up to four 0s must be added to the right side of the string.\n // If the bit string is more than four bits shorter than the required number of bits,\n // add four 0s to the end.\n if (buffer.getLengthInBits() + 4 <= dataTotalCodewordsBits) {\n buffer.put(0, 4)\n }\n\n // If the bit string is fewer than four bits shorter, add only the number of 0s that\n // are needed to reach the required number of bits.\n\n // After adding the terminator, if the number of bits in the string is not a multiple of 8,\n // pad the string on the right with 0s to make the string's length a multiple of 8.\n while (buffer.getLengthInBits() % 8 !== 0) {\n buffer.putBit(0)\n }\n\n // Add pad bytes if the string is still shorter than the total number of required bits.\n // Extend the buffer to fill the data capacity of the symbol corresponding to\n // the Version and Error Correction Level by adding the Pad Codewords 11101100 (0xEC)\n // and 00010001 (0x11) alternately.\n const remainingByte = (dataTotalCodewordsBits - buffer.getLengthInBits()) / 8\n for (let i = 0; i < remainingByte; i++) {\n buffer.put(i % 2 ? 0x11 : 0xEC, 8)\n }\n\n return createCodewords(buffer, version, errorCorrectionLevel)\n}\n\n/**\n * Encode input data with Reed-Solomon and return codewords with\n * relative error correction bits\n *\n * @param {BitBuffer} bitBuffer Data to encode\n * @param {Number} version QR Code version\n * @param {ErrorCorrectionLevel} errorCorrectionLevel Error correction level\n * @return {Uint8Array} Buffer containing encoded codewords\n */\nfunction createCodewords (bitBuffer, version, errorCorrectionLevel) {\n // Total codewords for this QR code version (Data + Error correction)\n const totalCodewords = Utils.getSymbolTotalCodewords(version)\n\n // Total number of error correction codewords\n const ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel)\n\n // Total number of data codewords\n const dataTotalCodewords = totalCodewords - ecTotalCodewords\n\n // Total number of blocks\n const ecTotalBlocks = ECCode.getBlocksCount(version, errorCorrectionLevel)\n\n // Calculate how many blocks each group should contain\n const blocksInGroup2 = totalCodewords % ecTotalBlocks\n const blocksInGroup1 = ecTotalBlocks - blocksInGroup2\n\n const totalCodewordsInGroup1 = Math.floor(totalCodewords / ecTotalBlocks)\n\n const dataCodewordsInGroup1 = Math.floor(dataTotalCodewords / ecTotalBlocks)\n const dataCodewordsInGroup2 = dataCodewordsInGroup1 + 1\n\n // Number of EC codewords is the same for both groups\n const ecCount = totalCodewordsInGroup1 - dataCodewordsInGroup1\n\n // Initialize a Reed-Solomon encoder with a generator polynomial of degree ecCount\n const rs = new ReedSolomonEncoder(ecCount)\n\n let offset = 0\n const dcData = new Array(ecTotalBlocks)\n const ecData = new Array(ecTotalBlocks)\n let maxDataSize = 0\n const buffer = new Uint8Array(bitBuffer.buffer)\n\n // Divide the buffer into the required number of blocks\n for (let b = 0; b < ecTotalBlocks; b++) {\n const dataSize = b < blocksInGroup1 ? dataCodewordsInGroup1 : dataCodewordsInGroup2\n\n // extract a block of data from buffer\n dcData[b] = buffer.slice(offset, offset + dataSize)\n\n // Calculate EC codewords for this data block\n ecData[b] = rs.encode(dcData[b])\n\n offset += dataSize\n maxDataSize = Math.max(maxDataSize, dataSize)\n }\n\n // Create final data\n // Interleave the data and error correction codewords from each block\n const data = new Uint8Array(totalCodewords)\n let index = 0\n let i, r\n\n // Add data codewords\n for (i = 0; i < maxDataSize; i++) {\n for (r = 0; r < ecTotalBlocks; r++) {\n if (i < dcData[r].length) {\n data[index++] = dcData[r][i]\n }\n }\n }\n\n // Apped EC codewords\n for (i = 0; i < ecCount; i++) {\n for (r = 0; r < ecTotalBlocks; r++) {\n data[index++] = ecData[r][i]\n }\n }\n\n return data\n}\n\n/**\n * Build QR Code symbol\n *\n * @param {String} data Input string\n * @param {Number} version QR Code version\n * @param {ErrorCorretionLevel} errorCorrectionLevel Error level\n * @param {MaskPattern} maskPattern Mask pattern\n * @return {Object} Object containing symbol data\n */\nfunction createSymbol (data, version, errorCorrectionLevel, maskPattern) {\n let segments\n\n if (Array.isArray(data)) {\n segments = Segments.fromArray(data)\n } else if (typeof data === 'string') {\n let estimatedVersion = version\n\n if (!estimatedVersion) {\n const rawSegments = Segments.rawSplit(data)\n\n // Estimate best version that can contain raw splitted segments\n estimatedVersion = Version.getBestVersionForData(rawSegments, errorCorrectionLevel)\n }\n\n // Build optimized segments\n // If estimated version is undefined, try with the highest version\n segments = Segments.fromString(data, estimatedVersion || 40)\n } else {\n throw new Error('Invalid data')\n }\n\n // Get the min version that can contain data\n const bestVersion = Version.getBestVersionForData(segments, errorCorrectionLevel)\n\n // If no version is found, data cannot be stored\n if (!bestVersion) {\n throw new Error('The amount of data is too big to be stored in a QR Code')\n }\n\n // If not specified, use min version as default\n if (!version) {\n version = bestVersion\n\n // Check if the specified version can contain the data\n } else if (version < bestVersion) {\n throw new Error('\\n' +\n 'The chosen QR Code version cannot contain this amount of data.\\n' +\n 'Minimum version required to store current data is: ' + bestVersion + '.\\n'\n )\n }\n\n const dataBits = createData(version, errorCorrectionLevel, segments)\n\n // Allocate matrix buffer\n const moduleCount = Utils.getSymbolSize(version)\n const modules = new BitMatrix(moduleCount)\n\n // Add function modules\n setupFinderPattern(modules, version)\n setupTimingPattern(modules)\n setupAlignmentPattern(modules, version)\n\n // Add temporary dummy bits for format info just to set them as reserved.\n // This is needed to prevent these bits from being masked by {@link MaskPattern.applyMask}\n // since the masking operation must be performed only on the encoding region.\n // These blocks will be replaced with correct values later in code.\n setupFormatInfo(modules, errorCorrectionLevel, 0)\n\n if (version >= 7) {\n setupVersionInfo(modules, version)\n }\n\n // Add data codewords\n setupData(modules, dataBits)\n\n if (isNaN(maskPattern)) {\n // Find best mask pattern\n maskPattern = MaskPattern.getBestMask(modules,\n setupFormatInfo.bind(null, modules, errorCorrectionLevel))\n }\n\n // Apply mask pattern\n MaskPattern.applyMask(maskPattern, modules)\n\n // Replace format info bits with correct values\n setupFormatInfo(modules, errorCorrectionLevel, maskPattern)\n\n return {\n modules: modules,\n version: version,\n errorCorrectionLevel: errorCorrectionLevel,\n maskPattern: maskPattern,\n segments: segments\n }\n}\n\n/**\n * QR Code\n *\n * @param {String | Array} data Input data\n * @param {Object} options Optional configurations\n * @param {Number} options.version QR Code version\n * @param {String} options.errorCorrectionLevel Error correction level\n * @param {Function} options.toSJISFunc Helper func to convert utf8 to sjis\n */\nexports.create = function create (data, options) {\n if (typeof data === 'undefined' || data === '') {\n throw new Error('No input text')\n }\n\n let errorCorrectionLevel = ECLevel.M\n let version\n let mask\n\n if (typeof options !== 'undefined') {\n // Use higher error correction level as default\n errorCorrectionLevel = ECLevel.from(options.errorCorrectionLevel, ECLevel.M)\n version = Version.from(options.version)\n mask = MaskPattern.from(options.maskPattern)\n\n if (options.toSJISFunc) {\n Utils.setToSJISFunction(options.toSJISFunc)\n }\n }\n\n return createSymbol(data, version, errorCorrectionLevel, mask)\n}\n","\nconst canPromise = require('./can-promise')\n\nconst QRCode = require('./core/qrcode')\nconst CanvasRenderer = require('./renderer/canvas')\nconst SvgRenderer = require('./renderer/svg-tag.js')\n\nfunction renderCanvas (renderFunc, canvas, text, opts, cb) {\n const args = [].slice.call(arguments, 1)\n const argsNum = args.length\n const isLastArgCb = typeof args[argsNum - 1] === 'function'\n\n if (!isLastArgCb && !canPromise()) {\n throw new Error('Callback required as last argument')\n }\n\n if (isLastArgCb) {\n if (argsNum < 2) {\n throw new Error('Too few arguments provided')\n }\n\n if (argsNum === 2) {\n cb = text\n text = canvas\n canvas = opts = undefined\n } else if (argsNum === 3) {\n if (canvas.getContext && typeof cb === 'undefined') {\n cb = opts\n opts = undefined\n } else {\n cb = opts\n opts = text\n text = canvas\n canvas = undefined\n }\n }\n } else {\n if (argsNum < 1) {\n throw new Error('Too few arguments provided')\n }\n\n if (argsNum === 1) {\n text = canvas\n canvas = opts = undefined\n } else if (argsNum === 2 && !canvas.getContext) {\n opts = text\n text = canvas\n canvas = undefined\n }\n\n return new Promise(function (resolve, reject) {\n try {\n const data = QRCode.create(text, opts)\n resolve(renderFunc(data, canvas, opts))\n } catch (e) {\n reject(e)\n }\n })\n }\n\n try {\n const data = QRCode.create(text, opts)\n cb(null, renderFunc(data, canvas, opts))\n } catch (e) {\n cb(e)\n }\n}\n\nexports.create = QRCode.create\nexports.toCanvas = renderCanvas.bind(null, CanvasRenderer.render)\nexports.toDataURL = renderCanvas.bind(null, CanvasRenderer.renderToDataURL)\n\n// only svg for now.\nexports.toString = renderCanvas.bind(null, function (data, _, opts) {\n return SvgRenderer.render(data, opts)\n})\n","/**\n * Data mask pattern reference\n * @type {Object}\n */\nexports.Patterns = {\n PATTERN000: 0,\n PATTERN001: 1,\n PATTERN010: 2,\n PATTERN011: 3,\n PATTERN100: 4,\n PATTERN101: 5,\n PATTERN110: 6,\n PATTERN111: 7\n}\n\n/**\n * Weighted penalty scores for the undesirable features\n * @type {Object}\n */\nconst PenaltyScores = {\n N1: 3,\n N2: 3,\n N3: 40,\n N4: 10\n}\n\n/**\n * Check if mask pattern value is valid\n *\n * @param {Number} mask Mask pattern\n * @return {Boolean} true if valid, false otherwise\n */\nexports.isValid = function isValid (mask) {\n return mask != null && mask !== '' && !isNaN(mask) && mask >= 0 && mask <= 7\n}\n\n/**\n * Returns mask pattern from a value.\n * If value is not valid, returns undefined\n *\n * @param {Number|String} value Mask pattern value\n * @return {Number} Valid mask pattern or undefined\n */\nexports.from = function from (value) {\n return exports.isValid(value) ? parseInt(value, 10) : undefined\n}\n\n/**\n* Find adjacent modules in row/column with the same color\n* and assign a penalty value.\n*\n* Points: N1 + i\n* i is the amount by which the number of adjacent modules of the same color exceeds 5\n*/\nexports.getPenaltyN1 = function getPenaltyN1 (data) {\n const size = data.size\n let points = 0\n let sameCountCol = 0\n let sameCountRow = 0\n let lastCol = null\n let lastRow = null\n\n for (let row = 0; row < size; row++) {\n sameCountCol = sameCountRow = 0\n lastCol = lastRow = null\n\n for (let col = 0; col < size; col++) {\n let module = data.get(row, col)\n if (module === lastCol) {\n sameCountCol++\n } else {\n if (sameCountCol >= 5) points += PenaltyScores.N1 + (sameCountCol - 5)\n lastCol = module\n sameCountCol = 1\n }\n\n module = data.get(col, row)\n if (module === lastRow) {\n sameCountRow++\n } else {\n if (sameCountRow >= 5) points += PenaltyScores.N1 + (sameCountRow - 5)\n lastRow = module\n sameCountRow = 1\n }\n }\n\n if (sameCountCol >= 5) points += PenaltyScores.N1 + (sameCountCol - 5)\n if (sameCountRow >= 5) points += PenaltyScores.N1 + (sameCountRow - 5)\n }\n\n return points\n}\n\n/**\n * Find 2x2 blocks with the same color and assign a penalty value\n *\n * Points: N2 * (m - 1) * (n - 1)\n */\nexports.getPenaltyN2 = function getPenaltyN2 (data) {\n const size = data.size\n let points = 0\n\n for (let row = 0; row < size - 1; row++) {\n for (let col = 0; col < size - 1; col++) {\n const last = data.get(row, col) +\n data.get(row, col + 1) +\n data.get(row + 1, col) +\n data.get(row + 1, col + 1)\n\n if (last === 4 || last === 0) points++\n }\n }\n\n return points * PenaltyScores.N2\n}\n\n/**\n * Find 1:1:3:1:1 ratio (dark:light:dark:light:dark) pattern in row/column,\n * preceded or followed by light area 4 modules wide\n *\n * Points: N3 * number of pattern found\n */\nexports.getPenaltyN3 = function getPenaltyN3 (data) {\n const size = data.size\n let points = 0\n let bitsCol = 0\n let bitsRow = 0\n\n for (let row = 0; row < size; row++) {\n bitsCol = bitsRow = 0\n for (let col = 0; col < size; col++) {\n bitsCol = ((bitsCol << 1) & 0x7FF) | data.get(row, col)\n if (col >= 10 && (bitsCol === 0x5D0 || bitsCol === 0x05D)) points++\n\n bitsRow = ((bitsRow << 1) & 0x7FF) | data.get(col, row)\n if (col >= 10 && (bitsRow === 0x5D0 || bitsRow === 0x05D)) points++\n }\n }\n\n return points * PenaltyScores.N3\n}\n\n/**\n * Calculate proportion of dark modules in entire symbol\n *\n * Points: N4 * k\n *\n * k is the rating of the deviation of the proportion of dark modules\n * in the symbol from 50% in steps of 5%\n */\nexports.getPenaltyN4 = function getPenaltyN4 (data) {\n let darkCount = 0\n const modulesCount = data.data.length\n\n for (let i = 0; i < modulesCount; i++) darkCount += data.data[i]\n\n const k = Math.abs(Math.ceil((darkCount * 100 / modulesCount) / 5) - 10)\n\n return k * PenaltyScores.N4\n}\n\n/**\n * Return mask value at given position\n *\n * @param {Number} maskPattern Pattern reference value\n * @param {Number} i Row\n * @param {Number} j Column\n * @return {Boolean} Mask value\n */\nfunction getMaskAt (maskPattern, i, j) {\n switch (maskPattern) {\n case exports.Patterns.PATTERN000: return (i + j) % 2 === 0\n case exports.Patterns.PATTERN001: return i % 2 === 0\n case exports.Patterns.PATTERN010: return j % 3 === 0\n case exports.Patterns.PATTERN011: return (i + j) % 3 === 0\n case exports.Patterns.PATTERN100: return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 === 0\n case exports.Patterns.PATTERN101: return (i * j) % 2 + (i * j) % 3 === 0\n case exports.Patterns.PATTERN110: return ((i * j) % 2 + (i * j) % 3) % 2 === 0\n case exports.Patterns.PATTERN111: return ((i * j) % 3 + (i + j) % 2) % 2 === 0\n\n default: throw new Error('bad maskPattern:' + maskPattern)\n }\n}\n\n/**\n * Apply a mask pattern to a BitMatrix\n *\n * @param {Number} pattern Pattern reference number\n * @param {BitMatrix} data BitMatrix data\n */\nexports.applyMask = function applyMask (pattern, data) {\n const size = data.size\n\n for (let col = 0; col < size; col++) {\n for (let row = 0; row < size; row++) {\n if (data.isReserved(row, col)) continue\n data.xor(row, col, getMaskAt(pattern, row, col))\n }\n }\n}\n\n/**\n * Returns the best mask pattern for data\n *\n * @param {BitMatrix} data\n * @return {Number} Mask pattern reference number\n */\nexports.getBestMask = function getBestMask (data, setupFormatFunc) {\n const numPatterns = Object.keys(exports.Patterns).length\n let bestPattern = 0\n let lowerPenalty = Infinity\n\n for (let p = 0; p < numPatterns; p++) {\n setupFormatFunc(p)\n exports.applyMask(p, data)\n\n // Calculate penalty\n const penalty =\n exports.getPenaltyN1(data) +\n exports.getPenaltyN2(data) +\n exports.getPenaltyN3(data) +\n exports.getPenaltyN4(data)\n\n // Undo previously applied mask\n exports.applyMask(p, data)\n\n if (penalty < lowerPenalty) {\n lowerPenalty = penalty\n bestPattern = p\n }\n }\n\n return bestPattern\n}\n","const Mode = require('./mode')\nconst NumericData = require('./numeric-data')\nconst AlphanumericData = require('./alphanumeric-data')\nconst ByteData = require('./byte-data')\nconst KanjiData = require('./kanji-data')\nconst Regex = require('./regex')\nconst Utils = require('./utils')\nconst dijkstra = require('dijkstrajs')\n\n/**\n * Returns UTF8 byte length\n *\n * @param {String} str Input string\n * @return {Number} Number of byte\n */\nfunction getStringByteLength (str) {\n return unescape(encodeURIComponent(str)).length\n}\n\n/**\n * Get a list of segments of the specified mode\n * from a string\n *\n * @param {Mode} mode Segment mode\n * @param {String} str String to process\n * @return {Array} Array of object with segments data\n */\nfunction getSegments (regex, mode, str) {\n const segments = []\n let result\n\n while ((result = regex.exec(str)) !== null) {\n segments.push({\n data: result[0],\n index: result.index,\n mode: mode,\n length: result[0].length\n })\n }\n\n return segments\n}\n\n/**\n * Extracts a series of segments with the appropriate\n * modes from a string\n *\n * @param {String} dataStr Input string\n * @return {Array} Array of object with segments data\n */\nfunction getSegmentsFromString (dataStr) {\n const numSegs = getSegments(Regex.NUMERIC, Mode.NUMERIC, dataStr)\n const alphaNumSegs = getSegments(Regex.ALPHANUMERIC, Mode.ALPHANUMERIC, dataStr)\n let byteSegs\n let kanjiSegs\n\n if (Utils.isKanjiModeEnabled()) {\n byteSegs = getSegments(Regex.BYTE, Mode.BYTE, dataStr)\n kanjiSegs = getSegments(Regex.KANJI, Mode.KANJI, dataStr)\n } else {\n byteSegs = getSegments(Regex.BYTE_KANJI, Mode.BYTE, dataStr)\n kanjiSegs = []\n }\n\n const segs = numSegs.concat(alphaNumSegs, byteSegs, kanjiSegs)\n\n return segs\n .sort(function (s1, s2) {\n return s1.index - s2.index\n })\n .map(function (obj) {\n return {\n data: obj.data,\n mode: obj.mode,\n length: obj.length\n }\n })\n}\n\n/**\n * Returns how many bits are needed to encode a string of\n * specified length with the specified mode\n *\n * @param {Number} length String length\n * @param {Mode} mode Segment mode\n * @return {Number} Bit length\n */\nfunction getSegmentBitsLength (length, mode) {\n switch (mode) {\n case Mode.NUMERIC:\n return NumericData.getBitsLength(length)\n case Mode.ALPHANUMERIC:\n return AlphanumericData.getBitsLength(length)\n case Mode.KANJI:\n return KanjiData.getBitsLength(length)\n case Mode.BYTE:\n return ByteData.getBitsLength(length)\n }\n}\n\n/**\n * Merges adjacent segments which have the same mode\n *\n * @param {Array} segs Array of object with segments data\n * @return {Array} Array of object with segments data\n */\nfunction mergeSegments (segs) {\n return segs.reduce(function (acc, curr) {\n const prevSeg = acc.length - 1 >= 0 ? acc[acc.length - 1] : null\n if (prevSeg && prevSeg.mode === curr.mode) {\n acc[acc.length - 1].data += curr.data\n return acc\n }\n\n acc.push(curr)\n return acc\n }, [])\n}\n\n/**\n * Generates a list of all possible nodes combination which\n * will be used to build a segments graph.\n *\n * Nodes are divided by groups. Each group will contain a list of all the modes\n * in which is possible to encode the given text.\n *\n * For example the text '12345' can be encoded as Numeric, Alphanumeric or Byte.\n * The group for '12345' will contain then 3 objects, one for each\n * possible encoding mode.\n *\n * Each node represents a possible segment.\n *\n * @param {Array} segs Array of object with segments data\n * @return {Array} Array of object with segments data\n */\nfunction buildNodes (segs) {\n const nodes = []\n for (let i = 0; i < segs.length; i++) {\n const seg = segs[i]\n\n switch (seg.mode) {\n case Mode.NUMERIC:\n nodes.push([seg,\n { data: seg.data, mode: Mode.ALPHANUMERIC, length: seg.length },\n { data: seg.data, mode: Mode.BYTE, length: seg.length }\n ])\n break\n case Mode.ALPHANUMERIC:\n nodes.push([seg,\n { data: seg.data, mode: Mode.BYTE, length: seg.length }\n ])\n break\n case Mode.KANJI:\n nodes.push([seg,\n { data: seg.data, mode: Mode.BYTE, length: getStringByteLength(seg.data) }\n ])\n break\n case Mode.BYTE:\n nodes.push([\n { data: seg.data, mode: Mode.BYTE, length: getStringByteLength(seg.data) }\n ])\n }\n }\n\n return nodes\n}\n\n/**\n * Builds a graph from a list of nodes.\n * All segments in each node group will be connected with all the segments of\n * the next group and so on.\n *\n * At each connection will be assigned a weight depending on the\n * segment's byte length.\n *\n * @param {Array} nodes Array of object with segments data\n * @param {Number} version QR Code version\n * @return {Object} Graph of all possible segments\n */\nfunction buildGraph (nodes, version) {\n const table = {}\n const graph = { start: {} }\n let prevNodeIds = ['start']\n\n for (let i = 0; i < nodes.length; i++) {\n const nodeGroup = nodes[i]\n const currentNodeIds = []\n\n for (let j = 0; j < nodeGroup.length; j++) {\n const node = nodeGroup[j]\n const key = '' + i + j\n\n currentNodeIds.push(key)\n table[key] = { node: node, lastCount: 0 }\n graph[key] = {}\n\n for (let n = 0; n < prevNodeIds.length; n++) {\n const prevNodeId = prevNodeIds[n]\n\n if (table[prevNodeId] && table[prevNodeId].node.mode === node.mode) {\n graph[prevNodeId][key] =\n getSegmentBitsLength(table[prevNodeId].lastCount + node.length, node.mode) -\n getSegmentBitsLength(table[prevNodeId].lastCount, node.mode)\n\n table[prevNodeId].lastCount += node.length\n } else {\n if (table[prevNodeId]) table[prevNodeId].lastCount = node.length\n\n graph[prevNodeId][key] = getSegmentBitsLength(node.length, node.mode) +\n 4 + Mode.getCharCountIndicator(node.mode, version) // switch cost\n }\n }\n }\n\n prevNodeIds = currentNodeIds\n }\n\n for (let n = 0; n < prevNodeIds.length; n++) {\n graph[prevNodeIds[n]].end = 0\n }\n\n return { map: graph, table: table }\n}\n\n/**\n * Builds a segment from a specified data and mode.\n * If a mode is not specified, the more suitable will be used.\n *\n * @param {String} data Input data\n * @param {Mode | String} modesHint Data mode\n * @return {Segment} Segment\n */\nfunction buildSingleSegment (data, modesHint) {\n let mode\n const bestMode = Mode.getBestModeForData(data)\n\n mode = Mode.from(modesHint, bestMode)\n\n // Make sure data can be encoded\n if (mode !== Mode.BYTE && mode.bit < bestMode.bit) {\n throw new Error('\"' + data + '\"' +\n ' cannot be encoded with mode ' + Mode.toString(mode) +\n '.\\n Suggested mode is: ' + Mode.toString(bestMode))\n }\n\n // Use Mode.BYTE if Kanji support is disabled\n if (mode === Mode.KANJI && !Utils.isKanjiModeEnabled()) {\n mode = Mode.BYTE\n }\n\n switch (mode) {\n case Mode.NUMERIC:\n return new NumericData(data)\n\n case Mode.ALPHANUMERIC:\n return new AlphanumericData(data)\n\n case Mode.KANJI:\n return new KanjiData(data)\n\n case Mode.BYTE:\n return new ByteData(data)\n }\n}\n\n/**\n * Builds a list of segments from an array.\n * Array can contain Strings or Objects with segment's info.\n *\n * For each item which is a string, will be generated a segment with the given\n * string and the more appropriate encoding mode.\n *\n * For each item which is an object, will be generated a segment with the given\n * data and mode.\n * Objects must contain at least the property \"data\".\n * If property \"mode\" is not present, the more suitable mode will be used.\n *\n * @param {Array} array Array of objects with segments data\n * @return {Array} Array of Segments\n */\nexports.fromArray = function fromArray (array) {\n return array.reduce(function (acc, seg) {\n if (typeof seg === 'string') {\n acc.push(buildSingleSegment(seg, null))\n } else if (seg.data) {\n acc.push(buildSingleSegment(seg.data, seg.mode))\n }\n\n return acc\n }, [])\n}\n\n/**\n * Builds an optimized sequence of segments from a string,\n * which will produce the shortest possible bitstream.\n *\n * @param {String} data Input string\n * @param {Number} version QR Code version\n * @return {Array} Array of segments\n */\nexports.fromString = function fromString (data, version) {\n const segs = getSegmentsFromString(data, Utils.isKanjiModeEnabled())\n\n const nodes = buildNodes(segs)\n const graph = buildGraph(nodes, version)\n const path = dijkstra.find_path(graph.map, 'start', 'end')\n\n const optimizedSegs = []\n for (let i = 1; i < path.length - 1; i++) {\n optimizedSegs.push(graph.table[path[i]].node)\n }\n\n return exports.fromArray(mergeSegments(optimizedSegs))\n}\n\n/**\n * Splits a string in various segments with the modes which\n * best represent their content.\n * The produced segments are far from being optimized.\n * The output of this function is only used to estimate a QR Code version\n * which may contain the data.\n *\n * @param {string} data Input string\n * @return {Array} Array of segments\n */\nexports.rawSplit = function rawSplit (data) {\n return exports.fromArray(\n getSegmentsFromString(data, Utils.isKanjiModeEnabled())\n )\n}\n","const EXP_TABLE = new Uint8Array(512)\nconst LOG_TABLE = new Uint8Array(256)\n/**\n * Precompute the log and anti-log tables for faster computation later\n *\n * For each possible value in the galois field 2^8, we will pre-compute\n * the logarithm and anti-logarithm (exponential) of this value\n *\n * ref {@link https://en.wikiversity.org/wiki/Reed%E2%80%93Solomon_codes_for_coders#Introduction_to_mathematical_fields}\n */\n;(function initTables () {\n let x = 1\n for (let i = 0; i < 255; i++) {\n EXP_TABLE[i] = x\n LOG_TABLE[x] = i\n\n x <<= 1 // multiply by 2\n\n // The QR code specification says to use byte-wise modulo 100011101 arithmetic.\n // This means that when a number is 256 or larger, it should be XORed with 0x11D.\n if (x & 0x100) { // similar to x >= 256, but a lot faster (because 0x100 == 256)\n x ^= 0x11D\n }\n }\n\n // Optimization: double the size of the anti-log table so that we don't need to mod 255 to\n // stay inside the bounds (because we will mainly use this table for the multiplication of\n // two GF numbers, no more).\n // @see {@link mul}\n for (let i = 255; i < 512; i++) {\n EXP_TABLE[i] = EXP_TABLE[i - 255]\n }\n}())\n\n/**\n * Returns log value of n inside Galois Field\n *\n * @param {Number} n\n * @return {Number}\n */\nexports.log = function log (n) {\n if (n < 1) throw new Error('log(' + n + ')')\n return LOG_TABLE[n]\n}\n\n/**\n * Returns anti-log value of n inside Galois Field\n *\n * @param {Number} n\n * @return {Number}\n */\nexports.exp = function exp (n) {\n return EXP_TABLE[n]\n}\n\n/**\n * Multiplies two number inside Galois Field\n *\n * @param {Number} x\n * @param {Number} y\n * @return {Number}\n */\nexports.mul = function mul (x, y) {\n if (x === 0 || y === 0) return 0\n\n // should be EXP_TABLE[(LOG_TABLE[x] + LOG_TABLE[y]) % 255] if EXP_TABLE wasn't oversized\n // @see {@link initTables}\n return EXP_TABLE[LOG_TABLE[x] + LOG_TABLE[y]]\n}\n","const VersionCheck = require('./version-check')\nconst Regex = require('./regex')\n\n/**\n * Numeric mode encodes data from the decimal digit set (0 - 9)\n * (byte values 30HEX to 39HEX).\n * Normally, 3 data characters are represented by 10 bits.\n *\n * @type {Object}\n */\nexports.NUMERIC = {\n id: 'Numeric',\n bit: 1 << 0,\n ccBits: [10, 12, 14]\n}\n\n/**\n * Alphanumeric mode encodes data from a set of 45 characters,\n * i.e. 10 numeric digits (0 - 9),\n * 26 alphabetic characters (A - Z),\n * and 9 symbols (SP, $, %, *, +, -, ., /, :).\n * Normally, two input characters are represented by 11 bits.\n *\n * @type {Object}\n */\nexports.ALPHANUMERIC = {\n id: 'Alphanumeric',\n bit: 1 << 1,\n ccBits: [9, 11, 13]\n}\n\n/**\n * In byte mode, data is encoded at 8 bits per character.\n *\n * @type {Object}\n */\nexports.BYTE = {\n id: 'Byte',\n bit: 1 << 2,\n ccBits: [8, 16, 16]\n}\n\n/**\n * The Kanji mode efficiently encodes Kanji characters in accordance with\n * the Shift JIS system based on JIS X 0208.\n * The Shift JIS values are shifted from the JIS X 0208 values.\n * JIS X 0208 gives details of the shift coded representation.\n * Each two-byte character value is compacted to a 13-bit binary codeword.\n *\n * @type {Object}\n */\nexports.KANJI = {\n id: 'Kanji',\n bit: 1 << 3,\n ccBits: [8, 10, 12]\n}\n\n/**\n * Mixed mode will contain a sequences of data in a combination of any of\n * the modes described above\n *\n * @type {Object}\n */\nexports.MIXED = {\n bit: -1\n}\n\n/**\n * Returns the number of bits needed to store the data length\n * according to QR Code specifications.\n *\n * @param {Mode} mode Data mode\n * @param {Number} version QR Code version\n * @return {Number} Number of bits\n */\nexports.getCharCountIndicator = function getCharCountIndicator (mode, version) {\n if (!mode.ccBits) throw new Error('Invalid mode: ' + mode)\n\n if (!VersionCheck.isValid(version)) {\n throw new Error('Invalid version: ' + version)\n }\n\n if (version >= 1 && version < 10) return mode.ccBits[0]\n else if (version < 27) return mode.ccBits[1]\n return mode.ccBits[2]\n}\n\n/**\n * Returns the most efficient mode to store the specified data\n *\n * @param {String} dataStr Input data string\n * @return {Mode} Best mode\n */\nexports.getBestModeForData = function getBestModeForData (dataStr) {\n if (Regex.testNumeric(dataStr)) return exports.NUMERIC\n else if (Regex.testAlphanumeric(dataStr)) return exports.ALPHANUMERIC\n else if (Regex.testKanji(dataStr)) return exports.KANJI\n else return exports.BYTE\n}\n\n/**\n * Return mode name as string\n *\n * @param {Mode} mode Mode object\n * @returns {String} Mode name\n */\nexports.toString = function toString (mode) {\n if (mode && mode.id) return mode.id\n throw new Error('Invalid mode')\n}\n\n/**\n * Check if input param is a valid mode object\n *\n * @param {Mode} mode Mode object\n * @returns {Boolean} True if valid mode, false otherwise\n */\nexports.isValid = function isValid (mode) {\n return mode && mode.bit && mode.ccBits\n}\n\n/**\n * Get mode object from its name\n *\n * @param {String} string Mode name\n * @returns {Mode} Mode object\n */\nfunction fromString (string) {\n if (typeof string !== 'string') {\n throw new Error('Param is not a string')\n }\n\n const lcStr = string.toLowerCase()\n\n switch (lcStr) {\n case 'numeric':\n return exports.NUMERIC\n case 'alphanumeric':\n return exports.ALPHANUMERIC\n case 'kanji':\n return exports.KANJI\n case 'byte':\n return exports.BYTE\n default:\n throw new Error('Unknown mode: ' + string)\n }\n}\n\n/**\n * Returns mode from a value.\n * If value is not a valid mode, returns defaultValue\n *\n * @param {Mode|String} value Encoding mode\n * @param {Mode} defaultValue Fallback value\n * @return {Mode} Encoding mode\n */\nexports.from = function from (value, defaultValue) {\n if (exports.isValid(value)) {\n return value\n }\n\n try {\n return fromString(value)\n } catch (e) {\n return defaultValue\n }\n}\n","/**\n * Alignment pattern are fixed reference pattern in defined positions\n * in a matrix symbology, which enables the decode software to re-synchronise\n * the coordinate mapping of the image modules in the event of moderate amounts\n * of distortion of the image.\n *\n * Alignment patterns are present only in QR Code symbols of version 2 or larger\n * and their number depends on the symbol version.\n */\n\nconst getSymbolSize = require('./utils').getSymbolSize\n\n/**\n * Calculate the row/column coordinates of the center module of each alignment pattern\n * for the specified QR Code version.\n *\n * The alignment patterns are positioned symmetrically on either side of the diagonal\n * running from the top left corner of the symbol to the bottom right corner.\n *\n * Since positions are simmetrical only half of the coordinates are returned.\n * Each item of the array will represent in turn the x and y coordinate.\n * @see {@link getPositions}\n *\n * @param {Number} version QR Code version\n * @return {Array} Array of coordinate\n */\nexports.getRowColCoords = function getRowColCoords (version) {\n if (version === 1) return []\n\n const posCount = Math.floor(version / 7) + 2\n const size = getSymbolSize(version)\n const intervals = size === 145 ? 26 : Math.ceil((size - 13) / (2 * posCount - 2)) * 2\n const positions = [size - 7] // Last coord is always (size - 7)\n\n for (let i = 1; i < posCount - 1; i++) {\n positions[i] = positions[i - 1] - intervals\n }\n\n positions.push(6) // First coord is always 6\n\n return positions.reverse()\n}\n\n/**\n * Returns an array containing the positions of each alignment pattern.\n * Each array's element represent the center point of the pattern as (x, y) coordinates\n *\n * Coordinates are calculated expanding the row/column coordinates returned by {@link getRowColCoords}\n * and filtering out the items that overlaps with finder pattern\n *\n * @example\n * For a Version 7 symbol {@link getRowColCoords} returns values 6, 22 and 38.\n * The alignment patterns, therefore, are to be centered on (row, column)\n * positions (6,22), (22,6), (22,22), (22,38), (38,22), (38,38).\n * Note that the coordinates (6,6), (6,38), (38,6) are occupied by finder patterns\n * and are not therefore used for alignment patterns.\n *\n * let pos = getPositions(7)\n * // [[6,22], [22,6], [22,22], [22,38], [38,22], [38,38]]\n *\n * @param {Number} version QR Code version\n * @return {Array} Array of coordinates\n */\nexports.getPositions = function getPositions (version) {\n const coords = []\n const pos = exports.getRowColCoords(version)\n const posLength = pos.length\n\n for (let i = 0; i < posLength; i++) {\n for (let j = 0; j < posLength; j++) {\n // Skip if position is occupied by finder patterns\n if ((i === 0 && j === 0) || // top-left\n (i === 0 && j === posLength - 1) || // bottom-left\n (i === posLength - 1 && j === 0)) { // top-right\n continue\n }\n\n coords.push([pos[i], pos[j]])\n }\n }\n\n return coords\n}\n","exports.L = { bit: 1 }\nexports.M = { bit: 0 }\nexports.Q = { bit: 3 }\nexports.H = { bit: 2 }\n\nfunction fromString (string) {\n if (typeof string !== 'string') {\n throw new Error('Param is not a string')\n }\n\n const lcStr = string.toLowerCase()\n\n switch (lcStr) {\n case 'l':\n case 'low':\n return exports.L\n\n case 'm':\n case 'medium':\n return exports.M\n\n case 'q':\n case 'quartile':\n return exports.Q\n\n case 'h':\n case 'high':\n return exports.H\n\n default:\n throw new Error('Unknown EC Level: ' + string)\n }\n}\n\nexports.isValid = function isValid (level) {\n return level && typeof level.bit !== 'undefined' &&\n level.bit >= 0 && level.bit < 4\n}\n\nexports.from = function from (value, defaultValue) {\n if (exports.isValid(value)) {\n return value\n }\n\n try {\n return fromString(value)\n } catch (e) {\n return defaultValue\n }\n}\n","const Utils = require('./utils')\nconst ECCode = require('./error-correction-code')\nconst ECLevel = require('./error-correction-level')\nconst Mode = require('./mode')\nconst VersionCheck = require('./version-check')\n\n// Generator polynomial used to encode version information\nconst G18 = (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0)\nconst G18_BCH = Utils.getBCHDigit(G18)\n\nfunction getBestVersionForDataLength (mode, length, errorCorrectionLevel) {\n for (let currentVersion = 1; currentVersion <= 40; currentVersion++) {\n if (length <= exports.getCapacity(currentVersion, errorCorrectionLevel, mode)) {\n return currentVersion\n }\n }\n\n return undefined\n}\n\nfunction getReservedBitsCount (mode, version) {\n // Character count indicator + mode indicator bits\n return Mode.getCharCountIndicator(mode, version) + 4\n}\n\nfunction getTotalBitsFromDataArray (segments, version) {\n let totalBits = 0\n\n segments.forEach(function (data) {\n const reservedBits = getReservedBitsCount(data.mode, version)\n totalBits += reservedBits + data.getBitsLength()\n })\n\n return totalBits\n}\n\nfunction getBestVersionForMixedData (segments, errorCorrectionLevel) {\n for (let currentVersion = 1; currentVersion <= 40; currentVersion++) {\n const length = getTotalBitsFromDataArray(segments, currentVersion)\n if (length <= exports.getCapacity(currentVersion, errorCorrectionLevel, Mode.MIXED)) {\n return currentVersion\n }\n }\n\n return undefined\n}\n\n/**\n * Returns version number from a value.\n * If value is not a valid version, returns defaultValue\n *\n * @param {Number|String} value QR Code version\n * @param {Number} defaultValue Fallback value\n * @return {Number} QR Code version number\n */\nexports.from = function from (value, defaultValue) {\n if (VersionCheck.isValid(value)) {\n return parseInt(value, 10)\n }\n\n return defaultValue\n}\n\n/**\n * Returns how much data can be stored with the specified QR code version\n * and error correction level\n *\n * @param {Number} version QR Code version (1-40)\n * @param {Number} errorCorrectionLevel Error correction level\n * @param {Mode} mode Data mode\n * @return {Number} Quantity of storable data\n */\nexports.getCapacity = function getCapacity (version, errorCorrectionLevel, mode) {\n if (!VersionCheck.isValid(version)) {\n throw new Error('Invalid QR Code version')\n }\n\n // Use Byte mode as default\n if (typeof mode === 'undefined') mode = Mode.BYTE\n\n // Total codewords for this QR code version (Data + Error correction)\n const totalCodewords = Utils.getSymbolTotalCodewords(version)\n\n // Total number of error correction codewords\n const ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel)\n\n // Total number of data codewords\n const dataTotalCodewordsBits = (totalCodewords - ecTotalCodewords) * 8\n\n if (mode === Mode.MIXED) return dataTotalCodewordsBits\n\n const usableBits = dataTotalCodewordsBits - getReservedBitsCount(mode, version)\n\n // Return max number of storable codewords\n switch (mode) {\n case Mode.NUMERIC:\n return Math.floor((usableBits / 10) * 3)\n\n case Mode.ALPHANUMERIC:\n return Math.floor((usableBits / 11) * 2)\n\n case Mode.KANJI:\n return Math.floor(usableBits / 13)\n\n case Mode.BYTE:\n default:\n return Math.floor(usableBits / 8)\n }\n}\n\n/**\n * Returns the minimum version needed to contain the amount of data\n *\n * @param {Segment} data Segment of data\n * @param {Number} [errorCorrectionLevel=H] Error correction level\n * @param {Mode} mode Data mode\n * @return {Number} QR Code version\n */\nexports.getBestVersionForData = function getBestVersionForData (data, errorCorrectionLevel) {\n let seg\n\n const ecl = ECLevel.from(errorCorrectionLevel, ECLevel.M)\n\n if (Array.isArray(data)) {\n if (data.length > 1) {\n return getBestVersionForMixedData(data, ecl)\n }\n\n if (data.length === 0) {\n return 1\n }\n\n seg = data[0]\n } else {\n seg = data\n }\n\n return getBestVersionForDataLength(seg.mode, seg.getLength(), ecl)\n}\n\n/**\n * Returns version information with relative error correction bits\n *\n * The version information is included in QR Code symbols of version 7 or larger.\n * It consists of an 18-bit sequence containing 6 data bits,\n * with 12 error correction bits calculated using the (18, 6) Golay code.\n *\n * @param {Number} version QR Code version\n * @return {Number} Encoded version info bits\n */\nexports.getEncodedBits = function getEncodedBits (version) {\n if (!VersionCheck.isValid(version) || version < 7) {\n throw new Error('Invalid QR Code version')\n }\n\n let d = version << 12\n\n while (Utils.getBCHDigit(d) - G18_BCH >= 0) {\n d ^= (G18 << (Utils.getBCHDigit(d) - G18_BCH))\n }\n\n return (version << 12) | d\n}\n"],"sourceRoot":""}