142 lines
3.8 KiB
JavaScript
142 lines
3.8 KiB
JavaScript
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'use strict';
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var _createClass = function() {
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function defineProperties(target, props) {
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for (var i = 0; i < props.length; i++) {
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var descriptor = props[i];
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descriptor.enumerable = descriptor.enumerable || false;
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descriptor.configurable = true;
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if ("value" in descriptor) descriptor.writable = true;
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Object.defineProperty(target, descriptor.key, descriptor);
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}
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}
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return function(Constructor, protoProps, staticProps) {
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if (protoProps) defineProperties(Constructor.prototype, protoProps);
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if (staticProps) defineProperties(Constructor, staticProps);
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return Constructor;
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};
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}();
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var _get = function get(object, property, receiver) {
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if (object === null) object = Function.prototype;
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var desc = Object.getOwnPropertyDescriptor(object, property);
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if (desc === undefined) {
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var parent = Object.getPrototypeOf(object);
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if (parent === null) {
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return undefined;
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} else {
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return get(parent, property, receiver);
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}
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} else if ("value" in desc) {
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return desc.value;
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} else {
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var getter = desc.get;
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if (getter === undefined) {
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return undefined;
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}
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return getter.call(receiver);
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}
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};
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import _EAN3 from './EAN'
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function _interopRequireDefault(obj) {
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return obj && obj.__esModule ? obj : {
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default: obj
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};
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}
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function _classCallCheck(instance, Constructor) {
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if (!(instance instanceof Constructor)) {
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throw new TypeError("Cannot call a class as a function");
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}
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}
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function _possibleConstructorReturn(self, call) {
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if (!self) {
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throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
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}
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return call && (typeof call === "object" || typeof call === "function") ? call : self;
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}
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function _inherits(subClass, superClass) {
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if (typeof superClass !== "function" && superClass !== null) {
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throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
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}
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subClass.prototype = Object.create(superClass && superClass.prototype, {
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constructor: {
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value: subClass,
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enumerable: false,
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writable: true,
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configurable: true
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}
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});
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if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ =
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superClass;
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} // Encoding documentation:
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// http://www.barcodeisland.com/ean8.phtml
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// Calculate the checksum digit
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var checksum = function checksum(number) {
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var res = number.substr(0, 7).split('').map(function(n) {
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return +n;
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}).reduce(function(sum, a, idx) {
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return idx % 2 ? sum + a : sum + a * 3;
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}, 0);
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return (10 - res % 10) % 10;
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};
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var EAN8 = function(_EAN) {
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_inherits(EAN8, _EAN);
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function EAN8(data, options) {
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_classCallCheck(this, EAN8);
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// Add checksum if it does not exist
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if (data.search(/^[0-9]{7}$/) !== -1) {
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data += checksum(data);
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}
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return _possibleConstructorReturn(this, (EAN8.__proto__ || Object.getPrototypeOf(EAN8)).call(this, data,
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options));
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}
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_createClass(EAN8, [{
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key: 'valid',
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value: function valid() {
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return this.data.search(/^[0-9]{8}$/) !== -1 && +this.data[7] === checksum(this.data);
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}
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}, {
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key: 'leftText',
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value: function leftText() {
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return _get(EAN8.prototype.__proto__ || Object.getPrototypeOf(EAN8.prototype),
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'leftText', this).call(this, 0, 4);
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}
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}, {
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key: 'leftEncode',
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value: function leftEncode() {
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var data = this.data.substr(0, 4);
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return _get(EAN8.prototype.__proto__ || Object.getPrototypeOf(EAN8.prototype),
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'leftEncode', this).call(this, data, 'LLLL');
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}
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}, {
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key: 'rightText',
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value: function rightText() {
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return _get(EAN8.prototype.__proto__ || Object.getPrototypeOf(EAN8.prototype),
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'rightText', this).call(this, 4, 4);
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}
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}, {
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key: 'rightEncode',
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value: function rightEncode() {
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var data = this.data.substr(4, 4);
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return _get(EAN8.prototype.__proto__ || Object.getPrototypeOf(EAN8.prototype),
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'rightEncode', this).call(this, data, 'RRRR');
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}
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}]);
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return EAN8;
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}(_EAN3);
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export default EAN8;
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