437 lines
11 KiB
V
437 lines
11 KiB
V
// Copyright (c) 2019-2022 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module time
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import strings
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import math
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// format returns a date string in "YYYY-MM-DD HH:MM" format (24h).
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pub fn (t Time) format() string {
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return t.get_fmt_str(.hyphen, .hhmm24, .yyyymmdd)
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}
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// format_ss returns a date string in "YYYY-MM-DD HH:MM:SS" format (24h).
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pub fn (t Time) format_ss() string {
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return t.get_fmt_str(.hyphen, .hhmmss24, .yyyymmdd)
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}
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// format_ss_milli returns a date string in "YYYY-MM-DD HH:MM:SS.123" format (24h).
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pub fn (t Time) format_ss_milli() string {
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return t.get_fmt_str(.hyphen, .hhmmss24_milli, .yyyymmdd)
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}
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// format_ss_micro returns a date string in "YYYY-MM-DD HH:MM:SS.123456" format (24h).
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pub fn (t Time) format_ss_micro() string {
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return t.get_fmt_str(.hyphen, .hhmmss24_micro, .yyyymmdd)
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}
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// hhmm returns a date string in "HH:MM" format (24h).
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pub fn (t Time) hhmm() string {
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return t.get_fmt_time_str(.hhmm24)
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}
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// hhmmss returns a date string in "HH:MM:SS" format (24h).
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pub fn (t Time) hhmmss() string {
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return t.get_fmt_time_str(.hhmmss24)
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}
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// hhmm12 returns a date string in "HH:MM" format (12h).
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pub fn (t Time) hhmm12() string {
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return t.get_fmt_time_str(.hhmm12)
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}
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// ymmdd returns a date string in "YYYY-MM-DD" format.
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pub fn (t Time) ymmdd() string {
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return t.get_fmt_date_str(.hyphen, .yyyymmdd)
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}
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// ddmmy returns a date string in "DD.MM.YYYY" format.
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pub fn (t Time) ddmmy() string {
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return t.get_fmt_date_str(.dot, .ddmmyyyy)
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}
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// md returns a date string in "MMM D" format.
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pub fn (t Time) md() string {
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return t.get_fmt_date_str(.space, .mmmd)
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}
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// appends ordinal suffix to a number
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fn ordinal_suffix(n int) string {
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if n > 3 && n < 21 {
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return '${n}th'
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}
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match n % 10 {
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1 {
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return '${n}st'
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}
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2 {
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return '${n}nd'
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}
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3 {
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return '${n}rd'
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}
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else {
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return '${n}th'
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}
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}
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}
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const tokens_2 = ['MM', 'DD', 'Do', 'YY', 'ss', 'kk', 'NN', 'mm', 'hh', 'HH', 'ZZ', 'dd', 'Qo',
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'QQ', 'wo', 'ww']
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const tokens_3 = ['MMM', 'DDD', 'ZZZ', 'ddd']
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const tokens_4 = ['MMMM', 'DDDD', 'DDDo', 'dddd', 'YYYY']
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// custom_format returns a date with custom format
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//
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// | | Token | Output |
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// | :----------- | -------: | :--------- |
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// | Month | M | 1 2 ... 11 12 |
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// | | Mo | 1st 2nd ... 11th 12th |
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// | | MM | 01 02 ... 11 12 |
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// | | MMM | Jan Feb ... Nov Dec |
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// | | MMMM | January February ... November December |
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// | Quarter | Q | 1 2 3 4 |
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// | | QQ | 01 02 03 04 |
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// | | Qo | 1st 2nd 3rd 4th |
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// | Day of Month | D | 1 2 ... 30 31 |
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// | | Do | 1st 2nd ... 30th 31st |
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// | | DD | 01 02 ... 30 31 |
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// | Day of Year | DDD | 1 2 ... 364 365 |
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// | | DDDo | 1st 2nd ... 364th 365th |
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// | | DDDD | 001 002 ... 364 365 |
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// | Day of Week | d | 0 1 ... 5 6 (Sun-Sat) |
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// | | c | 1 2 ... 6 7 (Mon-Sun) |
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// | | dd | Su Mo ... Fr Sa |
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// | | ddd | Sun Mon ... Fri Sat |
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// | | dddd | Sunday Monday ... Friday Saturday |
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// | Week of Year | w | 1 2 ... 52 53 |
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// | | wo | 1st 2nd ... 52nd 53rd |
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// | | ww | 01 02 ... 52 53 |
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// | Year | YY | 70 71 ... 29 30 |
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// | | YYYY | 1970 1971 ... 2029 2030 |
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// | Era | N | BC AD |
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// | | NN | Before Christ, Anno Domini |
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// | AM/PM | A | AM PM |
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// | | a | am pm |
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// | Hour | H | 0 1 ... 22 23 |
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// | | HH | 00 01 ... 22 23 |
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// | | h | 1 2 ... 11 12 |
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// | | hh | 01 02 ... 11 12 |
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// | | k | 1 2 ... 23 24 |
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// | | kk | 01 02 ... 23 24 |
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// | Minute | m | 0 1 ... 58 59 |
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// | | mm | 00 01 ... 58 59 |
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// | Second | s | 0 1 ... 58 59 |
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// | | ss | 00 01 ... 58 59 |
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// | Offset | Z | -7 -6 ... +5 +6 |
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// | | ZZ | -0700 -0600 ... +0500 +0600 |
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// | | ZZZ | -07:00 -06:00 ... +05:00 +06:00 |
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pub fn (t Time) custom_format(s string) string {
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mut tokens := []string{}
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for i := 0; i < s.len; {
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for j := 4; j > 0; j-- {
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if i > s.len - j {
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continue
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}
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if j == 1 || (j == 2 && s[i..i + j] in time.tokens_2)
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|| (j == 3 && s[i..i + j] in time.tokens_3)
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|| (j == 4 && s[i..i + j] in time.tokens_4) {
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tokens << s[i..i + j]
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i += (j - 1)
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break
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}
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}
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i++
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}
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mut sb := strings.new_builder(128)
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for token in tokens {
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match token {
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'M' {
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sb.write_string(t.month.str())
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}
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'MM' {
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sb.write_string('${t.month:02}')
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}
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'Mo' {
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sb.write_string(ordinal_suffix(t.month))
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}
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'MMM' {
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sb.write_string(long_months[t.month - 1][0..3])
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}
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'MMMM' {
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sb.write_string(long_months[t.month - 1])
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}
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'D' {
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sb.write_string(t.day.str())
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}
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'DD' {
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sb.write_string('${t.day:02}')
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}
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'Do' {
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sb.write_string(ordinal_suffix(t.day))
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}
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'DDD' {
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sb.write_string((t.day + days_before[t.month - 1] + int(is_leap_year(t.year))).str())
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}
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'DDDD' {
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sb.write_string('${t.day + days_before[t.month - 1] + int(is_leap_year(t.year)):03}')
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}
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'DDDo' {
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sb.write_string(ordinal_suffix(t.day + days_before[t.month - 1] +
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int(is_leap_year(t.year))))
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}
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'd' {
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sb.write_string(t.day_of_week().str())
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}
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'dd' {
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sb.write_string(long_days[t.day_of_week() - 1][0..2])
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}
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'ddd' {
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sb.write_string(long_days[t.day_of_week() - 1][0..3])
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}
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'dddd' {
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sb.write_string(long_days[t.day_of_week() - 1])
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}
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'YY' {
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sb.write_string(t.year.str()[2..4])
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}
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'YYYY' {
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sb.write_string(t.year.str())
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}
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'H' {
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sb.write_string(t.hour.str())
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}
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'HH' {
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sb.write_string('${t.hour:02}')
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}
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'h' {
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sb.write_string((t.hour % 12).str())
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}
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'hh' {
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sb.write_string('${(t.hour % 12):02}')
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}
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'm' {
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sb.write_string(t.minute.str())
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}
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'mm' {
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sb.write_string('${t.minute:02}')
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}
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's' {
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sb.write_string(t.second.str())
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}
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'ss' {
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sb.write_string('${t.second:02}')
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}
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'k' {
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sb.write_string((t.hour + 1).str())
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}
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'kk' {
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sb.write_string('${(t.hour + 1):02}')
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}
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'w' {
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sb.write_string('${math.ceil((t.day + days_before[t.month - 1] +
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int(is_leap_year(t.year))) / 7):.0}')
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}
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'ww' {
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sb.write_string('${math.ceil((t.day + days_before[t.month - 1] +
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int(is_leap_year(t.year))) / 7):02.0}')
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}
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'wo' {
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sb.write_string(ordinal_suffix(int(math.ceil((t.day + days_before[t.month - 1] +
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int(is_leap_year(t.year))) / 7))))
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}
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'Q' {
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sb.write_string('${(t.month % 4) + 1}')
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}
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'QQ' {
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sb.write_string('${(t.month % 4) + 1:02}')
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}
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'Qo' {
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sb.write_string(ordinal_suffix((t.month % 4) + 1))
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}
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'c' {
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sb.write_string('${t.day_of_week() + 1}')
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}
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'N' {
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// TODO integrate BC
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sb.write_string('AD')
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}
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'NN' {
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// TODO integrate Before Christ
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sb.write_string('Anno Domini')
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}
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'Z' {
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mut hours := offset() / seconds_per_hour
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if hours >= 0 {
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sb.write_string('+$hours')
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} else {
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hours = -hours
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sb.write_string('-$hours')
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}
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}
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'ZZ' {
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// TODO update if minute differs?
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mut hours := offset() / seconds_per_hour
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if hours >= 0 {
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sb.write_string('+${hours:02}00')
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} else {
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hours = -hours
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sb.write_string('-${hours:02}00')
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}
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}
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'ZZZ' {
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// TODO update if minute differs?
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mut hours := offset() / seconds_per_hour
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if hours >= 0 {
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sb.write_string('+${hours:02}:00')
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} else {
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hours = -hours
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sb.write_string('-${hours:02}:00')
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}
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}
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'a' {
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if t.hour > 12 {
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sb.write_string('pm')
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} else {
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sb.write_string('am')
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}
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}
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'A' {
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if t.hour > 12 {
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sb.write_string('PM')
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} else {
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sb.write_string('AM')
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}
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}
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else {
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sb.write_string(token)
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}
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}
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}
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return sb.str()
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}
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// clean returns a date string in a following format:
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// - a date string in "HH:MM" format (24h) for current day
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// - a date string in "MMM D HH:MM" format (24h) for date of current year
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// - a date string formatted with format function for other dates
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pub fn (t Time) clean() string {
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znow := now()
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// Today
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if t.month == znow.month && t.year == znow.year && t.day == znow.day {
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return t.get_fmt_time_str(.hhmm24)
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}
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// This year
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if t.year == znow.year {
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return t.get_fmt_str(.space, .hhmm24, .mmmd)
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}
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return t.format()
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}
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// clean12 returns a date string in a following format:
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// - a date string in "HH:MM" format (12h) for current day
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// - a date string in "MMM D HH:MM" format (12h) for date of current year
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// - a date string formatted with format function for other dates
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pub fn (t Time) clean12() string {
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znow := now()
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// Today
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if t.month == znow.month && t.year == znow.year && t.day == znow.day {
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return t.get_fmt_time_str(.hhmm12)
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}
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// This year
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if t.year == znow.year {
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return t.get_fmt_str(.space, .hhmm12, .mmmd)
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}
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return t.format()
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}
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// get_fmt_time_str returns a date string with specified FormatTime type.
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pub fn (t Time) get_fmt_time_str(fmt_time FormatTime) string {
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if fmt_time == .no_time {
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return ''
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}
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tp := if t.hour > 11 { 'p.m.' } else { 'a.m.' }
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hour_ := if t.hour > 12 {
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t.hour - 12
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} else if t.hour == 0 {
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12
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} else {
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t.hour
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}
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return match fmt_time {
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.hhmm12 { '$hour_:${t.minute:02d} $tp' }
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.hhmm24 { '${t.hour:02d}:${t.minute:02d}' }
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.hhmmss12 { '$hour_:${t.minute:02d}:${t.second:02d} $tp' }
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.hhmmss24 { '${t.hour:02d}:${t.minute:02d}:${t.second:02d}' }
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.hhmmss24_milli { '${t.hour:02d}:${t.minute:02d}:${t.second:02d}.${(t.microsecond / 1000):03d}' }
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.hhmmss24_micro { '${t.hour:02d}:${t.minute:02d}:${t.second:02d}.${t.microsecond:06d}' }
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else { 'unknown enumeration $fmt_time' }
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}
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}
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// get_fmt_time_str returns a date string with specified
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// FormatDelimiter and FormatDate type.
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pub fn (t Time) get_fmt_date_str(fmt_dlmtr FormatDelimiter, fmt_date FormatDate) string {
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if fmt_date == .no_date {
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return ''
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}
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month := t.smonth()
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year := '${(t.year % 100):02d}'
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mut res := match fmt_date {
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.ddmmyy { '${t.day:02d}|${t.month:02d}|$year' }
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.ddmmyyyy { '${t.day:02d}|${t.month:02d}|${t.year:04d}' }
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.mmddyy { '${t.month:02d}|${t.day:02d}|$year' }
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.mmddyyyy { '${t.month:02d}|${t.day:02d}|${t.year:04d}' }
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.mmmd { '$month|$t.day' }
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.mmmdd { '$month|${t.day:02d}' }
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.mmmddyy { '$month|${t.day:02d}|$year' }
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.mmmddyyyy { '$month|${t.day:02d}|${t.year:04d}' }
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.yyyymmdd { '${t.year:04d}|${t.month:02d}|${t.day:02d}' }
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.yymmdd { '$year|${t.month:02d}|${t.day:02d}' }
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else { 'unknown enumeration $fmt_date' }
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}
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del := match fmt_dlmtr {
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.dot { '.' }
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.hyphen { '-' }
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.slash { '/' }
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.space { ' ' }
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.no_delimiter { '' }
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}
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res = res.replace('|', del)
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return res
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}
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// get_fmt_str returns a date string with specified FormatDelimiter,
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// FormatTime type, and FormatDate type.
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pub fn (t Time) get_fmt_str(fmt_dlmtr FormatDelimiter, fmt_time FormatTime, fmt_date FormatDate) string {
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if fmt_date == .no_date {
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if fmt_time == .no_time {
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// saving one function call although it's checked in
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// t.get_fmt_time_str(fmt_time) in the beginning
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return ''
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} else {
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return t.get_fmt_time_str(fmt_time)
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}
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} else {
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if fmt_time != .no_time {
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dstr := t.get_fmt_date_str(fmt_dlmtr, fmt_date)
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tstr := t.get_fmt_time_str(fmt_time)
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return '$dstr $tstr'
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} else {
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return t.get_fmt_date_str(fmt_dlmtr, fmt_date)
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}
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}
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}
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// This is just a TEMPORARY function for cookies and their expire dates
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pub fn (t Time) utc_string() string {
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day_str := t.weekday_str()
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month_str := t.smonth()
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utc_string := '$day_str, $t.day $month_str $t.year ${t.hour:02d}:${t.minute:02d}:${t.second:02d} UTC'
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return utc_string
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}
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