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29 lines
738 B
JavaScript
29 lines
738 B
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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'use strict';
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const path = require('path');
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const SUPPORTED_PLATFORM_EXTS = ['android', 'ios', 'web'];
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const re = new RegExp(
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'[^\\.]+\\.(' + SUPPORTED_PLATFORM_EXTS.join('|') + ')\\.\\w+$'
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);
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// Extract platform extension: index.ios.js -> ios
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function getPlatformExtension(file) {
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const match = file.match(re);
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if (match && match[1]) {
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return match[1];
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}
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return null;
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}
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module.exports = getPlatformExtension;
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