57 lines
1.2 KiB
JavaScript
57 lines
1.2 KiB
JavaScript
/*!
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* time-stamp <https://github.com/jonschlinkert/time-stamp>
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*
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* Copyright (c) 2015-2017, Jon Schlinkert.
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* Released under the MIT License.
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*/
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'use strict';
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/**
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* Parse the given pattern and return a formatted
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* timestamp.
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*
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* @param {String} `pattern` Date pattern.
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* @param {Date} `date` Date object.
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* @return {String}
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*/
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module.exports = function(pattern, date) {
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if (typeof pattern !== 'string') {
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date = pattern;
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pattern = 'YYYY:MM:DD';
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}
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if (!date) date = new Date();
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function timestamp() {
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var regex = /(?=(YYYY|YY|MM|DD|HH|mm|ss|ms))\1([:\/]*)/;
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var match = regex.exec(pattern);
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if (match) {
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var increment = method(match[1]);
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var val = '00' + String(date[increment[0]]() + (increment[2] || 0));
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var res = val.slice(-increment[1]) + (match[2] || '');
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pattern = pattern.replace(match[0], res);
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timestamp();
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}
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}
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timestamp(pattern);
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return pattern;
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};
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function method(key) {
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return ({
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YYYY: ['getFullYear', 4],
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YY: ['getFullYear', 2],
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// getMonth is zero-based, thus the extra increment field
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MM: ['getMonth', 2, 1],
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DD: ['getDate', 2],
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HH: ['getHours', 2],
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mm: ['getMinutes', 2],
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ss: ['getSeconds', 2],
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ms: ['getMilliseconds', 3]
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})[key];
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}
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