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components/Jnpf/Barcode/tki-barcode/barcodes/EAN_UPC/EAN2.js

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+'use strict';
+
+var _createClass = function() {
+	function defineProperties(target, props) {
+		for (var i = 0; i < props.length; i++) {
+			var descriptor = props[i];
+			descriptor.enumerable = descriptor.enumerable || false;
+			descriptor.configurable = true;
+			if ("value" in descriptor) descriptor.writable = true;
+			Object.defineProperty(target, descriptor.key, descriptor);
+		}
+	}
+	return function(Constructor, protoProps, staticProps) {
+		if (protoProps) defineProperties(Constructor.prototype, protoProps);
+		if (staticProps) defineProperties(Constructor, staticProps);
+		return Constructor;
+	};
+}();
+
+import _constants from './constants'
+
+import _encoder2 from './encoder'
+
+import _Barcode3 from '../Barcode.js'
+
+function _interopRequireDefault(obj) {
+	return obj && obj.__esModule ? obj : {
+		default: obj
+	};
+}
+
+function _classCallCheck(instance, Constructor) {
+	if (!(instance instanceof Constructor)) {
+		throw new TypeError("Cannot call a class as a function");
+	}
+}
+
+function _possibleConstructorReturn(self, call) {
+	if (!self) {
+		throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+	}
+	return call && (typeof call === "object" || typeof call === "function") ? call : self;
+}
+
+function _inherits(subClass, superClass) {
+	if (typeof superClass !== "function" && superClass !== null) {
+		throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
+	}
+	subClass.prototype = Object.create(superClass && superClass.prototype, {
+		constructor: {
+			value: subClass,
+			enumerable: false,
+			writable: true,
+			configurable: true
+		}
+	});
+	if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ =
+		superClass;
+} // Encoding documentation:
+// https://en.wikipedia.org/wiki/EAN_2#Encoding
+
+var EAN2 = function(_Barcode) {
+	_inherits(EAN2, _Barcode);
+
+	function EAN2(data, options) {
+		_classCallCheck(this, EAN2);
+
+		return _possibleConstructorReturn(this, (EAN2.__proto__ || Object.getPrototypeOf(EAN2)).call(this, data,
+			options));
+	}
+
+	_createClass(EAN2, [{
+		key: 'valid',
+		value: function valid() {
+			return this.data.search(/^[0-9]{2}$/) !== -1;
+		}
+	}, {
+		key: 'encode',
+		value: function encode() {
+			// Choose the structure based on the number mod 4
+			var structure = _constants.EAN2_STRUCTURE[parseInt(this.data) % 4];
+			return {
+				// Start bits + Encode the two digits with 01 in between
+				data: '1011' + (0, _encoder2)(this.data, structure, '01'),
+				text: this.text
+			};
+		}
+	}]);
+
+	return EAN2;
+}(_Barcode3);
+
+export default EAN2;