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
118
119
120
121
122
123
124
125
126
127
128
|
// Copyright 2015 Rick Beton. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package period
import (
"bytes"
"fmt"
"strings"
"github.com/rickb777/plural"
)
// Format converts the period to human-readable form using the default localisation.
func (period Period) Format() string {
return period.FormatWithPeriodNames(PeriodYearNames, PeriodMonthNames, PeriodWeekNames, PeriodDayNames, PeriodHourNames, PeriodMinuteNames, PeriodSecondNames)
}
// FormatWithPeriodNames converts the period to human-readable form in a localisable way.
func (period Period) FormatWithPeriodNames(yearNames, monthNames, weekNames, dayNames, hourNames, minNames, secNames plural.Plurals) string {
period = period.Abs()
parts := make([]string, 0)
parts = appendNonBlank(parts, yearNames.FormatFloat(absFloat10(period.years)))
parts = appendNonBlank(parts, monthNames.FormatFloat(absFloat10(period.months)))
if period.days > 0 || (period.IsZero()) {
if len(weekNames) > 0 {
weeks := period.days / 70
mdays := period.days % 70
//fmt.Printf("%v %#v - %d %d\n", period, period, weeks, mdays)
if weeks > 0 {
parts = appendNonBlank(parts, weekNames.FormatInt(int(weeks)))
}
if mdays > 0 || weeks == 0 {
parts = appendNonBlank(parts, dayNames.FormatFloat(absFloat10(mdays)))
}
} else {
parts = appendNonBlank(parts, dayNames.FormatFloat(absFloat10(period.days)))
}
}
parts = appendNonBlank(parts, hourNames.FormatFloat(absFloat10(period.hours)))
parts = appendNonBlank(parts, minNames.FormatFloat(absFloat10(period.minutes)))
parts = appendNonBlank(parts, secNames.FormatFloat(absFloat10(period.seconds)))
return strings.Join(parts, ", ")
}
func appendNonBlank(parts []string, s string) []string {
if s == "" {
return parts
}
return append(parts, s)
}
// PeriodDayNames provides the English default format names for the days part of the period.
// This is a sequence of plurals where the first match is used, otherwise the last one is used.
// The last one must include a "%v" placeholder for the number.
var PeriodDayNames = plural.FromZero("%v days", "%v day", "%v days")
// PeriodWeekNames is as for PeriodDayNames but for weeks.
var PeriodWeekNames = plural.FromZero("", "%v week", "%v weeks")
// PeriodMonthNames is as for PeriodDayNames but for months.
var PeriodMonthNames = plural.FromZero("", "%v month", "%v months")
// PeriodYearNames is as for PeriodDayNames but for years.
var PeriodYearNames = plural.FromZero("", "%v year", "%v years")
// PeriodHourNames is as for PeriodDayNames but for hours.
var PeriodHourNames = plural.FromZero("", "%v hour", "%v hours")
// PeriodMinuteNames is as for PeriodDayNames but for minutes.
var PeriodMinuteNames = plural.FromZero("", "%v minute", "%v minutes")
// PeriodSecondNames is as for PeriodDayNames but for seconds.
var PeriodSecondNames = plural.FromZero("", "%v second", "%v seconds")
// String converts the period to ISO-8601 form.
func (period Period) String() string {
if period.IsZero() {
return "P0D"
}
buf := &bytes.Buffer{}
if period.Sign() < 0 {
buf.WriteByte('-')
}
buf.WriteByte('P')
if period.years != 0 {
fmt.Fprintf(buf, "%gY", absFloat10(period.years))
}
if period.months != 0 {
fmt.Fprintf(buf, "%gM", absFloat10(period.months))
}
if period.days != 0 {
if period.days%70 == 0 {
fmt.Fprintf(buf, "%gW", absFloat10(period.days/7))
} else {
fmt.Fprintf(buf, "%gD", absFloat10(period.days))
}
}
if period.hours != 0 || period.minutes != 0 || period.seconds != 0 {
buf.WriteByte('T')
}
if period.hours != 0 {
fmt.Fprintf(buf, "%gH", absFloat10(period.hours))
}
if period.minutes != 0 {
fmt.Fprintf(buf, "%gM", absFloat10(period.minutes))
}
if period.seconds != 0 {
fmt.Fprintf(buf, "%gS", absFloat10(period.seconds))
}
return buf.String()
}
func absFloat10(v int16) float32 {
f := float32(v) / 10
if v < 0 {
return -f
}
return f
}
|
