-
Notifications
You must be signed in to change notification settings - Fork 1
/
rrule.go
117 lines (102 loc) · 2.15 KB
/
rrule.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
package hrrule
import (
"strconv"
"strings"
"time"
)
// Frequency denotes the period on which the rule is evaluated.
type Frequency int
// Constants
const (
YEARLY Frequency = iota
MONTHLY
WEEKLY
DAILY
HOURLY
MINUTELY
SECONDLY
)
// Weekday specifying the nth weekday.
// Field N could be positive or negative (like MO(+2) or MO(-3).
// Not specifying N (0) is the same as specifying +1.
type Weekday struct {
weekday int
n int
}
func NewWeekday(weekday int, n int) Weekday {
return Weekday{
weekday: weekday,
n: n,
}
}
// Nth return the nth weekday
// __call__ - Cannot call the object directly,
// do it through e.g. TH.nth(-1) instead,
func (wday *Weekday) Nth(n int) Weekday {
return Weekday{wday.weekday, n}
}
// N returns index of the week, e.g. for 3MO, N() will return 3
func (wday *Weekday) N() int {
return wday.n
}
// Day returns index of the day in a week (0 for MO, 6 for SU)
func (wday *Weekday) Day() int {
return wday.weekday
}
const plusByte = '+'
var dayNames = []string{
"MO",
"TU",
"WE",
"TH",
"FR",
"SA",
"SU",
}
// String convert struct to human readable string
// String returns the English rrule name of the Weekday with number
func (wday *Weekday) String() string {
if MO.weekday <= wday.weekday && wday.weekday <= SU.weekday {
var sb strings.Builder
sb.Grow(32)
if wday.n != 0 {
if wday.n > 0 {
sb.WriteByte(plusByte)
}
sb.WriteString(strconv.Itoa(wday.n))
sb.WriteString(dayNames[wday.weekday])
return sb.String()
}
sb.WriteString(dayNames[wday.weekday])
return sb.String()
}
return "%!Weekday(" + strconv.Itoa(wday.weekday) + ", " + strconv.Itoa(wday.n) + ")"
}
// Weekdays
var (
MO = Weekday{weekday: 0}
TU = Weekday{weekday: 1}
WE = Weekday{weekday: 2}
TH = Weekday{weekday: 3}
FR = Weekday{weekday: 4}
SA = Weekday{weekday: 5}
SU = Weekday{weekday: 6}
)
type ROption struct {
Freq Frequency
Dtstart time.Time
Interval int
Wkst Weekday
Count int
Until time.Time
Bysetpos []int
Bymonth []int
Bymonthday []int
Byyearday []int
Byweekno []int
Byweekday []Weekday
Byhour []int
Byminute []int
Bysecond []int
Byeaster []int
}