"use strict";
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/*
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* Copyright 2008 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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var __values = (this && this.__values) || function(o) {
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var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
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if (m) return m.call(o);
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if (o && typeof o.length === "number") return {
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next: function () {
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if (o && i >= o.length) o = void 0;
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return { value: o && o[i++], done: !o };
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}
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};
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throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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var UPCEANReader_1 = require("./UPCEANReader");
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var StringBuilder_1 = require("../util/StringBuilder");
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var NotFoundException_1 = require("../NotFoundException");
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var BarcodeFormat_1 = require("../BarcodeFormat");
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// package com.google.zxing.oned;
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// import com.google.zxing.BarcodeFormat;
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// import com.google.zxing.FormatException;
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// import com.google.zxing.NotFoundException;
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// import com.google.zxing.common.BitArray;
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/**
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* <p>Implements decoding of the UPC-E format.</p>
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* <p><a href="http://www.barcodeisland.com/upce.phtml">This</a> is a great reference for
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* UPC-E information.</p>
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*
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* @author Sean Owen
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*
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* @source https://github.com/zxing/zxing/blob/3c96923276dd5785d58eb970b6ba3f80d36a9505/core/src/main/java/com/google/zxing/oned/UPCEReader.java
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*
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* @experimental
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*/
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var UPCEReader = /** @class */ (function (_super) {
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__extends(UPCEReader, _super);
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function UPCEReader() {
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var _this = _super.call(this) || this;
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_this.decodeMiddleCounters = new Int32Array(4);
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return _this;
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}
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/**
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* @throws NotFoundException
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*/
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// @Override
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UPCEReader.prototype.decodeMiddle = function (row, startRange, result) {
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var e_1, _a;
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var counters = this.decodeMiddleCounters.map(function (x) { return x; });
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counters[0] = 0;
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counters[1] = 0;
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counters[2] = 0;
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counters[3] = 0;
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var end = row.getSize();
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var rowOffset = startRange[1];
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var lgPatternFound = 0;
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for (var x = 0; x < 6 && rowOffset < end; x++) {
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var bestMatch = UPCEReader.decodeDigit(row, counters, rowOffset, UPCEReader.L_AND_G_PATTERNS);
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result += String.fromCharCode(('0'.charCodeAt(0) + bestMatch % 10));
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try {
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for (var counters_1 = (e_1 = void 0, __values(counters)), counters_1_1 = counters_1.next(); !counters_1_1.done; counters_1_1 = counters_1.next()) {
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var counter = counters_1_1.value;
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rowOffset += counter;
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}
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}
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catch (e_1_1) { e_1 = { error: e_1_1 }; }
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finally {
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try {
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if (counters_1_1 && !counters_1_1.done && (_a = counters_1.return)) _a.call(counters_1);
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}
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finally { if (e_1) throw e_1.error; }
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}
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if (bestMatch >= 10) {
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lgPatternFound |= 1 << (5 - x);
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}
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}
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UPCEReader.determineNumSysAndCheckDigit(new StringBuilder_1.default(result), lgPatternFound);
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return rowOffset;
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};
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/**
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* @throws NotFoundException
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*/
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// @Override
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UPCEReader.prototype.decodeEnd = function (row, endStart) {
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return UPCEReader.findGuardPatternWithoutCounters(row, endStart, true, UPCEReader.MIDDLE_END_PATTERN);
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};
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/**
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* @throws FormatException
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*/
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// @Override
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UPCEReader.prototype.checkChecksum = function (s) {
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return UPCEANReader_1.default.checkChecksum(UPCEReader.convertUPCEtoUPCA(s));
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};
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/**
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* @throws NotFoundException
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*/
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UPCEReader.determineNumSysAndCheckDigit = function (resultString, lgPatternFound) {
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for (var numSys = 0; numSys <= 1; numSys++) {
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for (var d = 0; d < 10; d++) {
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if (lgPatternFound === this.NUMSYS_AND_CHECK_DIGIT_PATTERNS[numSys][d]) {
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resultString.insert(0, /*(char)*/ ('0' + numSys));
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resultString.append(/*(char)*/ ('0' + d));
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return;
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}
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}
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}
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throw NotFoundException_1.default.getNotFoundInstance();
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};
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// @Override
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UPCEReader.prototype.getBarcodeFormat = function () {
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return BarcodeFormat_1.default.UPC_E;
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};
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/**
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* Expands a UPC-E value back into its full, equivalent UPC-A code value.
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*
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* @param upce UPC-E code as string of digits
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* @return equivalent UPC-A code as string of digits
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*/
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UPCEReader.convertUPCEtoUPCA = function (upce) {
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// the following line is equivalent to upce.getChars(1, 7, upceChars, 0);
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var upceChars = upce.slice(1, 7).split('').map(function (x) { return x.charCodeAt(0); });
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var result = new StringBuilder_1.default( /*12*/);
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result.append(upce.charAt(0));
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var lastChar = upceChars[5];
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switch (lastChar) {
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case 0:
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case 1:
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case 2:
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result.appendChars(upceChars, 0, 2);
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result.append(lastChar);
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result.append('0000');
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result.appendChars(upceChars, 2, 3);
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break;
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case 3:
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result.appendChars(upceChars, 0, 3);
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result.append('00000');
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result.appendChars(upceChars, 3, 2);
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break;
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case 4:
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result.appendChars(upceChars, 0, 4);
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result.append('00000');
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result.append(upceChars[4]);
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break;
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default:
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result.appendChars(upceChars, 0, 5);
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result.append('0000');
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result.append(lastChar);
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break;
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}
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// Only append check digit in conversion if supplied
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if (upce.length >= 8) {
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result.append(upce.charAt(7));
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}
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return result.toString();
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};
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/**
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* The pattern that marks the middle, and end, of a UPC-E pattern.
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* There is no "second half" to a UPC-E barcode.
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*/
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UPCEReader.MIDDLE_END_PATTERN = Int32Array.from([1, 1, 1, 1, 1, 1]);
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// For an UPC-E barcode, the final digit is represented by the parities used
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// to encode the middle six digits, according to the table below.
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//
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// Parity of next 6 digits
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// Digit 0 1 2 3 4 5
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// 0 Even Even Even Odd Odd Odd
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// 1 Even Even Odd Even Odd Odd
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// 2 Even Even Odd Odd Even Odd
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// 3 Even Even Odd Odd Odd Even
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// 4 Even Odd Even Even Odd Odd
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// 5 Even Odd Odd Even Even Odd
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// 6 Even Odd Odd Odd Even Even
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// 7 Even Odd Even Odd Even Odd
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// 8 Even Odd Even Odd Odd Even
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// 9 Even Odd Odd Even Odd Even
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//
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// The encoding is represented by the following array, which is a bit pattern
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// using Odd = 0 and Even = 1. For example, 5 is represented by:
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//
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// Odd Even Even Odd Odd Even
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// in binary:
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// 0 1 1 0 0 1 == 0x19
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//
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/**
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* See {@link #L_AND_G_PATTERNS}; these values similarly represent patterns of
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* even-odd parity encodings of digits that imply both the number system (0 or 1)
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* used, and the check digit.
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*/
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UPCEReader.NUMSYS_AND_CHECK_DIGIT_PATTERNS = [
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Int32Array.from([0x38, 0x34, 0x32, 0x31, 0x2C, 0x26, 0x23, 0x2A, 0x29, 0x25]),
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Int32Array.from([0x07, 0x0B, 0x0D, 0x0E, 0x13, 0x19, 0x1C, 0x15, 0x16, 0x1]),
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];
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return UPCEReader;
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}(UPCEANReader_1.default));
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exports.default = UPCEReader;
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