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components/Jnpf/Barcode/tki-barcode/barcodes/CODE39/index.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 _Barcode3 from '../Barcode.js'
+
+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/Code_39#Encoding
+
+var CODE39 = function(_Barcode) {
+	_inherits(CODE39, _Barcode);
+
+	function CODE39(data, options) {
+		_classCallCheck(this, CODE39);
+
+		data = data.toUpperCase();
+
+		// Calculate mod43 checksum if enabled
+		if (options.mod43) {
+			data += getCharacter(mod43checksum(data));
+		}
+
+		return _possibleConstructorReturn(this, (CODE39.__proto__ || Object.getPrototypeOf(CODE39)).call(this, data,
+			options));
+	}
+
+	_createClass(CODE39, [{
+		key: "encode",
+		value: function encode() {
+			// First character is always a *
+			var result = getEncoding("*");
+
+			// Take every character and add the binary representation to the result
+			for (var i = 0; i < this.data.length; i++) {
+				result += getEncoding(this.data[i]) + "0";
+			}
+
+			// Last character is always a *
+			result += getEncoding("*");
+			return {
+				data: result,
+				text: this.text
+			};
+		}
+	}, {
+		key: "valid",
+		value: function valid() {
+			return this.data.search(/^[0-9A-Z\-\.\ \$\/\+\%]+$/) !== -1;
+		}
+	}]);
+
+	return CODE39;
+}(_Barcode3);
+
+// All characters. The position in the array is the (checksum) value
+
+
+var characters = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J",
+	"K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "-", ".", " ", "$", "/", "+",
+	"%", "*"
+];
+
+// The decimal representation of the characters, is converted to the
+// corresponding binary with the getEncoding function
+var encodings = [20957, 29783, 23639, 30485, 20951, 29813, 23669, 20855, 29789, 23645, 29975, 23831, 30533, 22295,
+	30149, 24005, 21623, 29981, 23837, 22301, 30023, 23879, 30545, 22343, 30161, 24017, 21959, 30065, 23921, 22385,
+	29015, 18263, 29141, 17879, 29045, 18293, 17783, 29021, 18269, 17477, 17489, 17681, 20753, 35770
+];
+
+// Get the binary representation of a character by converting the encodings
+// from decimal to binary
+function getEncoding(character) {
+	return getBinary(characterValue(character));
+}
+
+function getBinary(characterValue) {
+	return encodings[characterValue].toString(2);
+}
+
+function getCharacter(characterValue) {
+	return characters[characterValue];
+}
+
+function characterValue(character) {
+	return characters.indexOf(character);
+}
+
+function mod43checksum(data) {
+	var checksum = 0;
+	for (var i = 0; i < data.length; i++) {
+		checksum += characterValue(data[i]);
+	}
+
+	checksum = checksum % 43;
+	return checksum;
+}
+
+export default CODE39;