| /** |
| * Helpers. |
| */ |
| |
| var s = 1000; |
| var m = s * 60; |
| var h = m * 60; |
| var d = h * 24; |
| var y = d * 365.25; |
| |
| /** |
| * Parse or format the given `val`. |
| * |
| * Options: |
| * |
| * - `long` verbose formatting [false] |
| * |
| * @param {String|Number} val |
| * @param {Object} options |
| * @return {String|Number} |
| * @api public |
| */ |
| |
| module.exports = function(val, options){ |
| options = options || {}; |
| if ('string' == typeof val) return parse(val); |
| return options.long |
| ? long(val) |
| : short(val); |
| }; |
| |
| /** |
| * Parse the given `str` and return milliseconds. |
| * |
| * @param {String} str |
| * @return {Number} |
| * @api private |
| */ |
| |
| function parse(str) { |
| str = '' + str; |
| if (str.length > 10000) return; |
| var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(str); |
| if (!match) return; |
| var n = parseFloat(match[1]); |
| var type = (match[2] || 'ms').toLowerCase(); |
| switch (type) { |
| case 'years': |
| case 'year': |
| case 'yrs': |
| case 'yr': |
| case 'y': |
| return n * y; |
| case 'days': |
| case 'day': |
| case 'd': |
| return n * d; |
| case 'hours': |
| case 'hour': |
| case 'hrs': |
| case 'hr': |
| case 'h': |
| return n * h; |
| case 'minutes': |
| case 'minute': |
| case 'mins': |
| case 'min': |
| case 'm': |
| return n * m; |
| case 'seconds': |
| case 'second': |
| case 'secs': |
| case 'sec': |
| case 's': |
| return n * s; |
| case 'milliseconds': |
| case 'millisecond': |
| case 'msecs': |
| case 'msec': |
| case 'ms': |
| return n; |
| } |
| } |
| |
| /** |
| * Short format for `ms`. |
| * |
| * @param {Number} ms |
| * @return {String} |
| * @api private |
| */ |
| |
| function short(ms) { |
| if (ms >= d) return Math.round(ms / d) + 'd'; |
| if (ms >= h) return Math.round(ms / h) + 'h'; |
| if (ms >= m) return Math.round(ms / m) + 'm'; |
| if (ms >= s) return Math.round(ms / s) + 's'; |
| return ms + 'ms'; |
| } |
| |
| /** |
| * Long format for `ms`. |
| * |
| * @param {Number} ms |
| * @return {String} |
| * @api private |
| */ |
| |
| function long(ms) { |
| return plural(ms, d, 'day') |
| || plural(ms, h, 'hour') |
| || plural(ms, m, 'minute') |
| || plural(ms, s, 'second') |
| || ms + ' ms'; |
| } |
| |
| /** |
| * Pluralization helper. |
| */ |
| |
| function plural(ms, n, name) { |
| if (ms < n) return; |
| if (ms < n * 1.5) return Math.floor(ms / n) + ' ' + name; |
| return Math.ceil(ms / n) + ' ' + name + 's'; |
| } |