mirror of
https://gitee.com/johng/gf.git
synced 2024-11-30 03:07:45 +08:00
279 lines
8.9 KiB
Go
279 lines
8.9 KiB
Go
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
|
|
//
|
|
// This Source Code Form is subject to the terms of the MIT License.
|
|
// If a copy of the MIT was not distributed with this file,
|
|
// You can obtain one at https://github.com/gogf/gf.
|
|
|
|
package gtime
|
|
|
|
import (
|
|
"bytes"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/gogf/gf/v2/text/gregex"
|
|
)
|
|
|
|
var (
|
|
// Refer: http://php.net/manual/en/function.date.php
|
|
formats = map[byte]string{
|
|
'd': "02", // Day: Day of the month, 2 digits with leading zeros. Eg: 01 to 31.
|
|
'D': "Mon", // Day: A textual representation of a day, three letters. Eg: Mon through Sun.
|
|
'w': "Monday", // Day: Numeric representation of the day of the week. Eg: 0 (for Sunday) through 6 (for Saturday).
|
|
'N': "Monday", // Day: ISO-8601 numeric representation of the day of the week. Eg: 1 (for Monday) through 7 (for Sunday).
|
|
'j': "=j=02", // Day: Day of the month without leading zeros. Eg: 1 to 31.
|
|
'S': "02", // Day: English ordinal suffix for the day of the month, 2 characters. Eg: st, nd, rd or th. Works well with j.
|
|
'l': "Monday", // Day: A full textual representation of the day of the week. Eg: Sunday through Saturday.
|
|
'z': "", // Day: The day of the year (starting from 0). Eg: 0 through 365.
|
|
'W': "", // Week: ISO-8601 week number of year, weeks starting on Monday. Eg: 42 (the 42nd week in the year).
|
|
'F': "January", // Month: A full textual representation of a month, such as January or March. Eg: January through December.
|
|
'm': "01", // Month: Numeric representation of a month, with leading zeros. Eg: 01 through 12.
|
|
'M': "Jan", // Month: A short textual representation of a month, three letters. Eg: Jan through Dec.
|
|
'n': "1", // Month: Numeric representation of a month, without leading zeros. Eg: 1 through 12.
|
|
't': "", // Month: Number of days in the given month. Eg: 28 through 31.
|
|
'Y': "2006", // Year: A full numeric representation of a year, 4 digits. Eg: 1999 or 2003.
|
|
'y': "06", // Year: A two digit representation of a year. Eg: 99 or 03.
|
|
'a': "pm", // Time: Lowercase Ante meridiem and Post meridiem. Eg: am or pm.
|
|
'A': "PM", // Time: Uppercase Ante meridiem and Post meridiem. Eg: AM or PM.
|
|
'g': "3", // Time: 12-hour format of an hour without leading zeros. Eg: 1 through 12.
|
|
'G': "=G=15", // Time: 24-hour format of an hour without leading zeros. Eg: 0 through 23.
|
|
'h': "03", // Time: 12-hour format of an hour with leading zeros. Eg: 01 through 12.
|
|
'H': "15", // Time: 24-hour format of an hour with leading zeros. Eg: 00 through 23.
|
|
'i': "04", // Time: Minutes with leading zeros. Eg: 00 to 59.
|
|
's': "05", // Time: Seconds with leading zeros. Eg: 00 through 59.
|
|
'u': "=u=.000", // Time: Milliseconds. Eg: 234, 678.
|
|
'U': "", // Time: Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT).
|
|
'O': "-0700", // Zone: Difference to Greenwich time (GMT) in hours. Eg: +0200.
|
|
'P': "-07:00", // Zone: Difference to Greenwich time (GMT) with colon between hours and minutes. Eg: +02:00.
|
|
'T': "MST", // Zone: Timezone abbreviation. Eg: UTC, EST, MDT ...
|
|
'c': "2006-01-02T15:04:05-07:00", // Format: ISO 8601 date. Eg: 2004-02-12T15:19:21+00:00.
|
|
'r': "Mon, 02 Jan 06 15:04 MST", // Format: RFC 2822 formatted date. Eg: Thu, 21 Dec 2000 16:01:07 +0200.
|
|
}
|
|
|
|
// Week to number mapping.
|
|
weekMap = map[string]string{
|
|
"Sunday": "0",
|
|
"Monday": "1",
|
|
"Tuesday": "2",
|
|
"Wednesday": "3",
|
|
"Thursday": "4",
|
|
"Friday": "5",
|
|
"Saturday": "6",
|
|
}
|
|
|
|
// Day count of each month which is not in leap year.
|
|
dayOfMonth = []int{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334}
|
|
)
|
|
|
|
// Format formats and returns the formatted result with custom `format`.
|
|
func (t *Time) Format(format string) string {
|
|
if t == nil {
|
|
return ""
|
|
}
|
|
runes := []rune(format)
|
|
buffer := bytes.NewBuffer(nil)
|
|
for i := 0; i < len(runes); {
|
|
switch runes[i] {
|
|
case '\\':
|
|
if i < len(runes)-1 {
|
|
buffer.WriteRune(runes[i+1])
|
|
i += 2
|
|
continue
|
|
} else {
|
|
return buffer.String()
|
|
}
|
|
case 'W':
|
|
buffer.WriteString(strconv.Itoa(t.WeeksOfYear()))
|
|
case 'z':
|
|
buffer.WriteString(strconv.Itoa(t.DayOfYear()))
|
|
case 't':
|
|
buffer.WriteString(strconv.Itoa(t.DaysInMonth()))
|
|
case 'U':
|
|
buffer.WriteString(strconv.FormatInt(t.Unix(), 10))
|
|
default:
|
|
if runes[i] > 255 {
|
|
buffer.WriteRune(runes[i])
|
|
break
|
|
}
|
|
if f, ok := formats[byte(runes[i])]; ok {
|
|
result := t.Time.Format(f)
|
|
// Particular chars should be handled here.
|
|
switch runes[i] {
|
|
case 'j':
|
|
for _, s := range []string{"=j=0", "=j="} {
|
|
result = strings.Replace(result, s, "", -1)
|
|
}
|
|
buffer.WriteString(result)
|
|
case 'G':
|
|
for _, s := range []string{"=G=0", "=G="} {
|
|
result = strings.Replace(result, s, "", -1)
|
|
}
|
|
buffer.WriteString(result)
|
|
case 'u':
|
|
buffer.WriteString(strings.Replace(result, "=u=.", "", -1))
|
|
case 'w':
|
|
buffer.WriteString(weekMap[result])
|
|
case 'N':
|
|
buffer.WriteString(strings.Replace(weekMap[result], "0", "7", -1))
|
|
case 'S':
|
|
buffer.WriteString(formatMonthDaySuffixMap(result))
|
|
default:
|
|
buffer.WriteString(result)
|
|
}
|
|
} else {
|
|
buffer.WriteRune(runes[i])
|
|
}
|
|
}
|
|
i++
|
|
}
|
|
return buffer.String()
|
|
}
|
|
|
|
// FormatNew formats and returns a new Time object with given custom `format`.
|
|
func (t *Time) FormatNew(format string) *Time {
|
|
if t == nil {
|
|
return nil
|
|
}
|
|
return NewFromStr(t.Format(format))
|
|
}
|
|
|
|
// FormatTo formats `t` with given custom `format`.
|
|
func (t *Time) FormatTo(format string) *Time {
|
|
if t == nil {
|
|
return nil
|
|
}
|
|
t.Time = NewFromStr(t.Format(format)).Time
|
|
return t
|
|
}
|
|
|
|
// Layout formats the time with stdlib layout and returns the formatted result.
|
|
func (t *Time) Layout(layout string) string {
|
|
if t == nil {
|
|
return ""
|
|
}
|
|
return t.Time.Format(layout)
|
|
}
|
|
|
|
// LayoutNew formats the time with stdlib layout and returns the new Time object.
|
|
func (t *Time) LayoutNew(layout string) *Time {
|
|
if t == nil {
|
|
return nil
|
|
}
|
|
return NewFromStr(t.Layout(layout))
|
|
}
|
|
|
|
// LayoutTo formats `t` with stdlib layout.
|
|
func (t *Time) LayoutTo(layout string) *Time {
|
|
if t == nil {
|
|
return nil
|
|
}
|
|
t.Time = NewFromStr(t.Layout(layout)).Time
|
|
return t
|
|
}
|
|
|
|
// IsLeapYear checks whether the time is leap year.
|
|
func (t *Time) IsLeapYear() bool {
|
|
year := t.Year()
|
|
if (year%4 == 0 && year%100 != 0) || year%400 == 0 {
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
// DayOfYear checks and returns the position of the day for the year.
|
|
func (t *Time) DayOfYear() int {
|
|
day := t.Day()
|
|
month := int(t.Month())
|
|
if t.IsLeapYear() {
|
|
if month > 2 {
|
|
return dayOfMonth[month-1] + day
|
|
}
|
|
return dayOfMonth[month-1] + day - 1
|
|
}
|
|
return dayOfMonth[month-1] + day - 1
|
|
}
|
|
|
|
// DaysInMonth returns the day count of current month.
|
|
func (t *Time) DaysInMonth() int {
|
|
switch t.Month() {
|
|
case 1, 3, 5, 7, 8, 10, 12:
|
|
return 31
|
|
case 4, 6, 9, 11:
|
|
return 30
|
|
}
|
|
if t.IsLeapYear() {
|
|
return 29
|
|
}
|
|
return 28
|
|
}
|
|
|
|
// WeeksOfYear returns the point of current week for the year.
|
|
func (t *Time) WeeksOfYear() int {
|
|
_, week := t.ISOWeek()
|
|
return week
|
|
}
|
|
|
|
// formatToStdLayout converts custom format to stdlib layout.
|
|
func formatToStdLayout(format string) string {
|
|
b := bytes.NewBuffer(nil)
|
|
for i := 0; i < len(format); {
|
|
switch format[i] {
|
|
case '\\':
|
|
if i < len(format)-1 {
|
|
b.WriteByte(format[i+1])
|
|
i += 2
|
|
continue
|
|
} else {
|
|
return b.String()
|
|
}
|
|
|
|
default:
|
|
if f, ok := formats[format[i]]; ok {
|
|
// Handle particular chars.
|
|
switch format[i] {
|
|
case 'j':
|
|
b.WriteString("2")
|
|
case 'G':
|
|
b.WriteString("15")
|
|
case 'u':
|
|
if i > 0 && format[i-1] == '.' {
|
|
b.WriteString("000")
|
|
} else {
|
|
b.WriteString(".000")
|
|
}
|
|
|
|
default:
|
|
b.WriteString(f)
|
|
}
|
|
} else {
|
|
b.WriteByte(format[i])
|
|
}
|
|
i++
|
|
}
|
|
}
|
|
return b.String()
|
|
}
|
|
|
|
// formatToRegexPattern converts the custom format to its corresponding regular expression.
|
|
func formatToRegexPattern(format string) string {
|
|
s := gregex.Quote(formatToStdLayout(format))
|
|
s, _ = gregex.ReplaceString(`[0-9]`, `[0-9]`, s)
|
|
s, _ = gregex.ReplaceString(`[A-Za-z]`, `[A-Za-z]`, s)
|
|
s, _ = gregex.ReplaceString(`\s+`, `\s+`, s)
|
|
return s
|
|
}
|
|
|
|
// formatMonthDaySuffixMap returns the short english word for current day.
|
|
func formatMonthDaySuffixMap(day string) string {
|
|
switch day {
|
|
case "01", "21", "31":
|
|
return "st"
|
|
case "02", "22":
|
|
return "nd"
|
|
case "03", "23":
|
|
return "rd"
|
|
default:
|
|
return "th"
|
|
}
|
|
}
|