carbon/carbon.go
2022-05-24 07:01:33 +08:00

272 lines
8.5 KiB
Go

// @Package carbon
// @Description a simple, semantic and developer-friendly golang package for datetime
// @Page github.com/golang-module/carbon
// @Developer gouguoyin
// @Blog www.gouguoyin.cn
// @Email contact@gouguoyin.cn
// Package carbon is a simple, semantic and developer-friendly golang package for datetime.
package carbon
import (
"time"
)
// Version current version
// 当前版本号
const Version = "2.1.8"
// timezone constants
// 时区常量
const (
Local = "Local" // 本地时间
UTC = "UTC" // 世界协调时间
GMT = "GMT" // 格林尼治标准时间
CST = "CST" // 中国标准时间
EET = "EET" // 欧洲东部标准时间
WET = "WET" // 欧洲西部标准时间
CET = "CET" // 欧洲中部标准时间
EST = "EST" // 美国东部标准时间
MST = "MST" // 美国山地标准时间
Cuba = "Cuba" // 古巴
Egypt = "Egypt" // 埃及
Eire = "Eire" // 爱尔兰
Greenwich = "Greenwich" // 格林尼治
Iceland = "Iceland" // 冰岛
Iran = "Iran" // 伊朗
Israel = "Israel" // 以色列
Jamaica = "Jamaica" // 牙买加
Japan = "Japan" // 日本
Libya = "Libya" // 利比亚
Poland = "Poland" // 波兰
Portugal = "Portugal" // 葡萄牙
PRC = "PRC" // 中国
Singapore = "Singapore" // 新加坡
Turkey = "Turkey" // 土耳其
Shanghai = "Asia/Shanghai" // 上海
Chongqing = "Asia/Chongqing" // 重庆
Harbin = "Asia/Harbin" // 哈尔滨
HongKong = "Asia/Hong_Kong" // 香港
Macao = "Asia/Macao" // 澳门
Taipei = "Asia/Taipei" // 台北
Tokyo = "Asia/Tokyo" // 东京
Saigon = "Asia/Saigon" // 西贡
Seoul = "Asia/Seoul" // 首尔
Bangkok = "Asia/Bangkok" // 曼谷
Dubai = "Asia/Dubai" // 迪拜
NewYork = "America/New_York" // 纽约
LosAngeles = "America/Los_Angeles" // 洛杉矶
Chicago = "America/Chicago" // 芝加哥
Moscow = "Europe/Moscow" // 莫斯科
London = "Europe/London" // 伦敦
Berlin = "Europe/Berlin" // 柏林
Paris = "Europe/Paris" // 巴黎
Rome = "Europe/Rome" // 罗马
Sydney = "Australia/Sydney" // 悉尼
Melbourne = "Australia/Melbourne" // 墨尔本
Darwin = "Australia/Darwin" // 达尔文
)
// month constants
// 月份常量
const (
January = "January" // 一月
February = "February" // 二月
March = "March" // 三月
April = "April" // 四月
May = "May" // 五月
June = "June" // 六月
July = "July" // 七月
August = "August" // 八月
September = "September" // 九月
October = "October" // 十月
November = "November" // 十一月
December = "December" // 十二月
)
// week constants
// 星期常量
const (
Monday = "Monday" // 周一
Tuesday = "Tuesday" // 周二
Wednesday = "Wednesday" // 周三
Thursday = "Thursday" // 周四
Friday = "Friday" // 周五
Saturday = "Saturday" // 周六
Sunday = "Sunday" // 周日
)
// number constants
// 数字常量
const (
YearsPerMillennium = 1000 // 每千年1000年
YearsPerCentury = 100 // 每世纪100年
YearsPerDecade = 10 // 每十年10年
QuartersPerYear = 4 // 每年4个季度
MonthsPerYear = 12 // 每年12月
MonthsPerQuarter = 3 // 每季度3月
WeeksPerNormalYear = 52 // 每常规年52周
weeksPerLongYear = 53 // 每长年53周
WeeksPerMonth = 4 // 每月4周
DaysPerLeapYear = 366 // 每闰年366天
DaysPerNormalYear = 365 // 每常规年365天
DaysPerWeek = 7 // 每周7天
HoursPerWeek = 168 // 每周168小时
HoursPerDay = 24 // 每天24小时
MinutesPerDay = 1440 // 每天1440分钟
MinutesPerHour = 60 // 每小时60分钟
SecondsPerWeek = 604800 // 每周604800秒
SecondsPerDay = 86400 // 每天86400秒
SecondsPerHour = 3600 // 每小时3600秒
SecondsPerMinute = 60 // 每分钟60秒
)
// layout constants
// 布局模板常量
const (
ANSICLayout = time.ANSIC
UnixDateLayout = time.UnixDate
RubyDateLayout = time.RubyDate
RFC822Layout = time.RFC822
RFC822ZLayout = time.RFC822Z
RFC850Layout = time.RFC850
RFC1123Layout = time.RFC1123
RFC1123ZLayout = time.RFC1123Z
RssLayout = time.RFC1123Z
KitchenLayout = time.Kitchen
RFC2822Layout = time.RFC1123Z
CookieLayout = "Monday, 02-Jan-2006 15:04:05 MST"
RFC3339Layout = "2006-01-02T15:04:05Z07:00"
RFC3339MilliLayout = "2006-01-02T15:04:05.999Z07:00"
RFC3339MicroLayout = "2006-01-02T15:04:05.999999Z07:00"
RFC3339NanoLayout = "2006-01-02T15:04:05.999999999Z07:00"
ISO8601Layout = "2006-01-02T15:04:05-07:00"
ISO8601MilliLayout = "2006-01-02T15:04:05.999-07:00"
ISO8601MicroLayout = "2006-01-02T15:04:05.999999-07:00"
ISO8601NanoLayout = "2006-01-02T15:04:05.999999999-07:00"
RFC1036Layout = "Mon, 02 Jan 06 15:04:05 -0700"
RFC7231Layout = "Mon, 02 Jan 2006 15:04:05 GMT"
DayDateTimeLayout = "Mon, Jan 2, 2006 3:04 PM"
DateTimeLayout = "2006-01-02 15:04:05"
DateTimeMilliLayout = "2006-01-02 15:04:05.999"
DateTimeMicroLayout = "2006-01-02 15:04:05.999999"
DateTimeNanoLayout = "2006-01-02 15:04:05.999999999"
ShortDateTimeLayout = "20060102150405"
ShortDateTimeMilliLayout = "20060102150405.999"
ShortDateTimeMicroLayout = "20060102150405.999999"
ShortDateTimeNanoLayout = "20060102150405.999999999"
DateLayout = "2006-01-02"
DateMilliLayout = "2006-01-02.999"
DateMicroLayout = "2006-01-02.999999"
DateNanoLayout = "2006-01-02.999999999"
ShortDateLayout = "20060102"
ShortDateMilliLayout = "20060102.999"
ShortDateMicroLayout = "20060102.999999"
ShortDateNanoLayout = "20060102.999999999"
TimeLayout = "15:04:05"
TimeMilliLayout = "15:04:05.999"
TimeMicroLayout = "15:04:05.999999"
TimeNanoLayout = "15:04:05.999999999"
ShortTimeLayout = "150405"
ShortTimeMilliLayout = "150405.999"
ShortTimeMicroLayout = "150405.999999"
ShortTimeNanoLayout = "150405.999999999"
)
// Carbon defines a Carbon struct.
// 定义 Carbon 结构体
type Carbon struct {
time time.Time
weekStartsAt time.Weekday
loc *time.Location
lang *Language
Error error
}
// NewCarbon returns a new Carbon instance.
// 初始化 Carbon 结构体
func NewCarbon() Carbon {
return Carbon{weekStartsAt: time.Sunday, loc: time.Local, lang: NewLanguage()}
}
// Time2Carbon converts time.Time to Carbon.
// 将 time.Time 转换成 Carbon
func Time2Carbon(tt time.Time) Carbon {
c := NewCarbon()
c.time = tt
return c
}
// Carbon2Time converts Carbon to time.Time.
// 将 Carbon 转换成 time.Time
func (c Carbon) Carbon2Time() time.Time {
return c.time.In(c.loc)
}
// Now returns a Carbon instance for now.
// 当前
func (c Carbon) Now(timezone ...string) Carbon {
if len(timezone) > 0 {
c.loc, c.Error = getLocationByTimezone(timezone[len(timezone)-1])
}
if c.Error != nil {
return c
}
c.time = time.Now().In(c.loc)
return c
}
// Now returns a Carbon instance for now.
// 当前
func Now(timezone ...string) Carbon {
return NewCarbon().Now(timezone...)
}
// Tomorrow returns a Carbon instance for tomorrow.
// 明天
func (c Carbon) Tomorrow(timezone ...string) Carbon {
if len(timezone) > 0 {
c.loc, c.Error = getLocationByTimezone(timezone[len(timezone)-1])
}
if c.Error != nil {
return c
}
if c.IsZero() {
c.time = c.Now().Carbon2Time().AddDate(0, 0, 1)
return c
}
c.time = c.Carbon2Time().AddDate(0, 0, 1)
return c
}
// Tomorrow returns a Carbon instance for tomorrow.
// 明天
func Tomorrow(timezone ...string) Carbon {
return NewCarbon().Tomorrow(timezone...)
}
// Yesterday returns a Carbon instance for yesterday.
// 昨天
func (c Carbon) Yesterday(timezone ...string) Carbon {
if len(timezone) > 0 {
c.loc, c.Error = getLocationByTimezone(timezone[len(timezone)-1])
}
if c.Error != nil {
return c
}
if c.IsZero() {
c.time = c.Now().Carbon2Time().AddDate(0, 0, -1)
return c
}
c.time = c.Carbon2Time().AddDate(0, 0, -1)
return c
}
// Yesterday returns a Carbon instance for yesterday.
// 昨天
func Yesterday(timezone ...string) Carbon {
return NewCarbon().Yesterday(timezone...)
}