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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;
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