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1490ab12ef
Summary: Includes React Native and its dependencies Fresco, Metro, and Yoga. Excludes samples/examples/docs. find: ^(?:( *)|( *(?:[\*~#]|::))( )? *)?Copyright (?:\(c\) )?(\d{4})\b.+Facebook[\s\S]+?BSD[\s\S]+?(?:this source tree|the same directory)\.$ replace: $1$2$3Copyright (c) $4-present, Facebook, Inc.\n$2\n$1$2$3This source code is licensed under the MIT license found in the\n$1$2$3LICENSE file in the root directory of this source tree. Reviewed By: TheSavior, yungsters Differential Revision: D7007050 fbshipit-source-id: 37dd6bf0ffec0923bfc99c260bb330683f35553e
44 lines
1.0 KiB
JavaScript
44 lines
1.0 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @providesModule truncate
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* @flow
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*/
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'use strict';
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type truncateOptions = {
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breakOnWords: boolean,
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minDelta: number,
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elipsis: string,
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}
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const defaultOptions = {
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breakOnWords: true,
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minDelta: 10, // Prevents truncating a tiny bit off the end
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elipsis: '...',
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};
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// maxChars (including ellipsis)
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const truncate = function(
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str: ?string,
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maxChars: number,
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options: truncateOptions
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): ?string {
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options = Object.assign({}, defaultOptions, options);
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if (str && str.length &&
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str.length - options.minDelta + options.elipsis.length >= maxChars) {
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str = str.slice(0, maxChars - options.elipsis.length + 1);
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if (options.breakOnWords) {
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var ii = Math.max(str.lastIndexOf(' '), str.lastIndexOf('\n'));
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str = str.slice(0, ii);
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}
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str = str.trim() + options.elipsis;
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}
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return str;
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};
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module.exports = truncate;
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