import { Duration, isDuration } from './constructor'; import toInt from '../utils/to-int'; import hasOwnProp from '../utils/has-own-prop'; import { DATE, HOUR, MINUTE, SECOND, MILLISECOND } from '../units/constants'; import { cloneWithOffset } from '../units/offset'; import { createLocal } from '../create/local'; // ASP.NET json date format regex var aspNetRegex = /(\-)?(?:(\d*)\.)?(\d+)\:(\d+)(?:\:(\d+)\.?(\d{3})?)?/; // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere var isoRegex = /^(-)?P(?:(?:([0-9,.]*)Y)?(?:([0-9,.]*)M)?(?:([0-9,.]*)D)?(?:T(?:([0-9,.]*)H)?(?:([0-9,.]*)M)?(?:([0-9,.]*)S)?)?|([0-9,.]*)W)$/; export function createDuration (input, key) { var duration = input, // matching against regexp is expensive, do it on demand match = null, sign, ret, diffRes; if (isDuration(input)) { duration = { ms : input._milliseconds, d : input._days, M : input._months }; } else if (typeof input === 'number') { duration = {}; if (key) { duration[key] = input; } else { duration.milliseconds = input; } } else if (!!(match = aspNetRegex.exec(input))) { sign = (match[1] === '-') ? -1 : 1; duration = { y : 0, d : toInt(match[DATE]) * sign, h : toInt(match[HOUR]) * sign, m : toInt(match[MINUTE]) * sign, s : toInt(match[SECOND]) * sign, ms : toInt(match[MILLISECOND]) * sign }; } else if (!!(match = isoRegex.exec(input))) { sign = (match[1] === '-') ? -1 : 1; duration = { y : parseIso(match[2], sign), M : parseIso(match[3], sign), d : parseIso(match[4], sign), h : parseIso(match[5], sign), m : parseIso(match[6], sign), s : parseIso(match[7], sign), w : parseIso(match[8], sign) }; } else if (duration == null) {// checks for null or undefined duration = {}; } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) { diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to)); duration = {}; duration.ms = diffRes.milliseconds; duration.M = diffRes.months; } ret = new Duration(duration); if (isDuration(input) && hasOwnProp(input, '_locale')) { ret._locale = input._locale; } return ret; } createDuration.fn = Duration.prototype; function parseIso (inp, sign) { // We'd normally use ~~inp for this, but unfortunately it also // converts floats to ints. // inp may be undefined, so careful calling replace on it. var res = inp && parseFloat(inp.replace(',', '.')); // apply sign while we're at it return (isNaN(res) ? 0 : res) * sign; } function positiveMomentsDifference(base, other) { var res = {milliseconds: 0, months: 0}; res.months = other.month() - base.month() + (other.year() - base.year()) * 12; if (base.clone().add(res.months, 'M').isAfter(other)) { --res.months; } res.milliseconds = +other - +(base.clone().add(res.months, 'M')); return res; } function momentsDifference(base, other) { var res; other = cloneWithOffset(other, base); if (base.isBefore(other)) { res = positiveMomentsDifference(base, other); } else { res = positiveMomentsDifference(other, base); res.milliseconds = -res.milliseconds; res.months = -res.months; } return res; }