133 lines
4.5 KiB
Java
133 lines
4.5 KiB
Java
var setupDefaults = require('../setupDefaults')
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var helperGetDateFullYear = require('./helperGetDateFullYear')
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var helperGetDateMonth = require('./helperGetDateMonth')
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var toStringDate = require('./toStringDate')
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var getYearWeek = require('./getYearWeek')
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var getYearDay = require('./getYearDay')
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var assign = require('../object/assign')
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var isDate = require('../base/isDate')
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var isFunction = require('../base/isFunction')
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var padStart = require('../string/padStart')
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function handleCustomTemplate (date, formats, match, value) {
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var format = formats[match]
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if (format) {
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if (isFunction(format)) {
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return format(value, match, date)
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} else {
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return format[value]
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}
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}
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return value
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}
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function formatDayE (day) {
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return day === 0 ? 7 : day
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}
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/**
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* 日期格式化为字符串，转义符号 []
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*
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* @param {Date} date 日期或数字
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* @param {String} format 输出日期格式(年份(yy|yyyy)、月份(M|MM自动补0)、天(d|dd自动补0)、12小时制(h|hh自动补0)、24小时制(H|HH自动补0)、分钟(m|mm自动补0)、秒(s|ss自动补0)、毫秒(S|SSS自动补0)、D当年的第几天、a/A上午下午、e/E星期几、w当年的第几周、W当月的第几周、q当年第几个季度、Z时区)
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* @param {Object} options {formats: {q: ['日', '一', '二', '三', '四', '五', '六'], E: function (value, match, date) {return '三'}, }} 自定义格式化模板
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* @return {String}
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*/
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var dateFormatRE = /\[([^\]]+)]|y{2,4}|M{1,2}|d{1,2}|H{1,2}|h{1,2}|m{1,2}|s{1,2}|S{1,3}|Z{1,2}|W{1,2}|D{1,3}|[aAeEq]/g
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function toDateString (date, format, options) {
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if (date) {
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date = toStringDate(date)
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if (isDate(date)) {
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var result = format || setupDefaults.formatString
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var hours = date.getHours()
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var apm = hours < 12 ? 'am' : 'pm'
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var formats = assign({}, setupDefaults.formatStringMatchs, options ? options.formats : null)
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var fy = function (match, length) {
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return ('' + helperGetDateFullYear(date)).substr(4 - length)
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}
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var fM = function (match, length) {
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return padStart(helperGetDateMonth(date) + 1, length, '0')
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}
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var fd = function (match, length) {
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return padStart(date.getDate(), length, '0')
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}
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var fH = function (match, length) {
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return padStart(hours, length, '0')
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}
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var fh = function (match, length) {
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return padStart(hours <= 12 ? hours : hours - 12, length, '0')
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}
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var fm = function (match, length) {
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return padStart(date.getMinutes(), length, '0')
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}
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var fs = function (match, length) {
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return padStart(date.getSeconds(), length, '0')
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}
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var fS = function (match, length) {
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return padStart(date.getMilliseconds(), length, '0')
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}
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var fZ = function (match, length) {
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var zoneHours = date.getTimezoneOffset() / 60 * -1
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return handleCustomTemplate(date, formats, match, (zoneHours >= 0 ? '+' : '-') + padStart(zoneHours, 2, '0') + (length === 1 ? ':' : '') + '00')
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}
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var fW = function (match, length) {
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return padStart(handleCustomTemplate(date, formats, match, getYearWeek(date)), length, '0')
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}
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var fD = function (match, length) {
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return padStart(handleCustomTemplate(date, formats, match, getYearDay(date)), length, '0')
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}
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var parseDates = {
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yyyy: fy,
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yy: fy,
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MM: fM,
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M: fM,
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dd: fd,
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d: fd,
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HH: fH,
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H: fH,
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hh: fh,
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h: fh,
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mm: fm,
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m: fm,
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ss: fs,
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s: fs,
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SSS: fS,
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S: fS,
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ZZ: fZ,
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Z: fZ,
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WW: fW,
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W: fW,
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DDD: fD,
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D: fD,
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a: function (match) {
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return handleCustomTemplate(date, formats, match, apm)
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},
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A: function (match) {
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return handleCustomTemplate(date, formats, match, apm.toLocaleUpperCase())
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},
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e: function (match) {
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return handleCustomTemplate(date, formats, match, date.getDay())
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},
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E: function (match) {
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return handleCustomTemplate(date, formats, match, formatDayE(date.getDay()))
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},
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q: function (match) {
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return handleCustomTemplate(date, formats, match, Math.floor((helperGetDateMonth(date) + 3) / 3))
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}
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}
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return result.replace(dateFormatRE, function (match, skip) {
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return skip || (parseDates[match] ? parseDates[match](match, match.length) : match)
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})
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}
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return date
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}
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return ''
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}
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module.exports = toDateString
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