/*
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* Copyright (C) 2010 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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import AbstractUPCEANReader from './AbstractUPCEANReader';
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import UPCEANExtension5Support from './UPCEANExtension5Support';
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import UPCEANExtension2Support from './UPCEANExtension2Support';
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export default class UPCEANExtensionSupport {
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static decodeRow(rowNumber, row, rowOffset) {
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let extensionStartRange = AbstractUPCEANReader.findGuardPattern(row, rowOffset, false, this.EXTENSION_START_PATTERN, new Int32Array(this.EXTENSION_START_PATTERN.length).fill(0));
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try {
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// return null;
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let fiveSupport = new UPCEANExtension5Support();
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return fiveSupport.decodeRow(rowNumber, row, extensionStartRange);
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}
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catch (err) {
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// return null;
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let twoSupport = new UPCEANExtension2Support();
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return twoSupport.decodeRow(rowNumber, row, extensionStartRange);
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}
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}
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}
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UPCEANExtensionSupport.EXTENSION_START_PATTERN = Int32Array.from([1, 1, 2]);
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