"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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Object.defineProperty(exports, "__esModule", { value: true });
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/*namespace com.google.zxing.oned {*/
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var BarcodeFormat_1 = require("../BarcodeFormat");
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var NotFoundException_1 = require("../NotFoundException");
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var OneDReader_1 = require("./OneDReader");
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var Result_1 = require("../Result");
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var ResultPoint_1 = require("../ResultPoint");
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/**
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* <p>Decodes CodaBar barcodes. </p>
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*
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* @author Evan @dodobelieve
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* @see CodaBarReader
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*/
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var CodaBarReader = /** @class */ (function (_super) {
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__extends(CodaBarReader, _super);
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function CodaBarReader() {
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var _this = _super !== null && _super.apply(this, arguments) || this;
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_this.CODA_BAR_CHAR_SET = {
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nnnnnww: '0',
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nnnnwwn: '1',
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nnnwnnw: '2',
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wwnnnnn: '3',
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nnwnnwn: '4',
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wnnnnwn: '5',
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nwnnnnw: '6',
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nwnnwnn: '7',
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nwwnnnn: '8',
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wnnwnnn: '9',
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nnnwwnn: '-',
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nnwwnnn: '$',
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wnnnwnw: ':',
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wnwnnnw: '/',
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wnwnwnn: '.',
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nnwwwww: '+',
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nnwwnwn: 'A',
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nwnwnnw: 'B',
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nnnwnww: 'C',
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nnnwwwn: 'D'
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};
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return _this;
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}
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CodaBarReader.prototype.decodeRow = function (rowNumber, row, hints) {
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var validRowData = this.getValidRowData(row);
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if (!validRowData)
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throw new NotFoundException_1.default();
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var retStr = this.codaBarDecodeRow(validRowData.row);
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if (!retStr)
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throw new NotFoundException_1.default();
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return new Result_1.default(retStr, null, 0, [new ResultPoint_1.default(validRowData.left, rowNumber), new ResultPoint_1.default(validRowData.right, rowNumber)], BarcodeFormat_1.default.CODABAR, new Date().getTime());
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};
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/**
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* converts bit array to valid data array(lengths of black bits and white bits)
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* @param row bit array to convert
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*/
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CodaBarReader.prototype.getValidRowData = function (row) {
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var booleanArr = row.toArray();
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var startIndex = booleanArr.indexOf(true);
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if (startIndex === -1)
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return null;
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var lastIndex = booleanArr.lastIndexOf(true);
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if (lastIndex <= startIndex)
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return null;
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booleanArr = booleanArr.slice(startIndex, lastIndex + 1);
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var result = [];
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var lastBit = booleanArr[0];
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var bitLength = 1;
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for (var i = 1; i < booleanArr.length; i++) {
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if (booleanArr[i] === lastBit) {
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bitLength++;
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}
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else {
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lastBit = booleanArr[i];
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result.push(bitLength);
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bitLength = 1;
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}
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}
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result.push(bitLength);
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// CodaBar code data valid
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if (result.length < 23 && (result.length + 1) % 8 !== 0)
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return null;
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return { row: result, left: startIndex, right: lastIndex };
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};
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/**
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* decode codabar code
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* @param row row to cecode
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*/
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CodaBarReader.prototype.codaBarDecodeRow = function (row) {
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var code = [];
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var barThreshold = Math.ceil(row.reduce(function (pre, item) { return (pre + item) / 2; }, 0));
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// Read one encoded character at a time.
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while (row.length > 0) {
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var seg = row.splice(0, 8).splice(0, 7);
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var key = seg.map(function (len) { return (len < barThreshold ? 'n' : 'w'); }).join('');
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if (this.CODA_BAR_CHAR_SET[key] === undefined)
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return null;
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code.push(this.CODA_BAR_CHAR_SET[key]);
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}
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var strCode = code.join('');
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if (this.validCodaBarString(strCode))
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return strCode;
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return null;
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};
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/**
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* check if the string is a CodaBar string
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* @param src string to determine
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*/
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CodaBarReader.prototype.validCodaBarString = function (src) {
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var reg = /^[A-D].{1,}[A-D]$/;
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return reg.test(src);
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};
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return CodaBarReader;
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}(OneDReader_1.default));
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exports.default = CodaBarReader;
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