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Diffstat (limited to 'node_modules/ms/index.js')
-rw-r--r--node_modules/ms/index.js125
1 files changed, 125 insertions, 0 deletions
diff --git a/node_modules/ms/index.js b/node_modules/ms/index.js
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+/**
+ * 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';
+}