1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55
56. 56
57. 57
58. 58
59. 59
60. 60
61. 61
62. 62
63. 63
64. 64
65. 65
66. 66
67. 67
68. 68
69. 69
70. 70
71. 71
72. 72
73. 73
74. 74
75. 75
76. 76
77. 77
78. 78
79. 79
80. 80
81. 81
82. 82
83. 83
84. 84
85. 85
86. 86
87. 87
88. 88
89. 89
90. 90
91. 91
92. 92
93. 93
94. 94
95. 95
96. 96
97. 97
98. 98
99. 99
100. 100
101. 101
102. 102
103. 103
104. 104
105. 105
106. 106
107. 107
108. 108
109. 109
110. 110
111. 111
112. 112
113. 113
114. 114
115. 115
116. 116
117. 117
118. 118
119. 119
120. 120
121. 121
122. 122
123. 123
124. 124
125. 125
126. 126
127. 127
128. 128
129. 129
130. 130
131. 131
132. 132
133. 133
134. 134
135. 135
136. 136
137. 137
138. 138
139. 139
140. 140
141. 141
142. 142
143. 143
144. 144
145. 145
146. 146
147. 147
148. 148
149. 149
150. 150
151. 151
152. 152
153. 153
154. 154
155. 155
156. 156
157. 157
158. 158
159. 159
160. 160
161. 161
162. 162
163. 163
164. 164
165. 165
166. 166

package pflag

import (
	"fmt"
	"strconv"
	"strings"
)

// -- float64Slice Value
type float64SliceValue struct {
	value   *[]float64
	changed bool
}

func newFloat64SliceValue(val []float64, p *[]float64) *float64SliceValue {
	isv := new(float64SliceValue)
	isv.value = p
	*isv.value = val
	return isv
}

func (s *float64SliceValue) Set(val string) error {
	ss := strings.Split(val, ",")
	out := make([]float64, len(ss))
	for i, d := range ss {
		var err error
		out[i], err = strconv.ParseFloat(d, 64)
		if err != nil {
			return err
		}

	}
	if !s.changed {
		*s.value = out
	} else {
		*s.value = append(*s.value, out...)
	}
	s.changed = true
	return nil
}

func (s *float64SliceValue) Type() string {
	return "float64Slice"
}

func (s *float64SliceValue) String() string {
	out := make([]string, len(*s.value))
	for i, d := range *s.value {
		out[i] = fmt.Sprintf("%f", d)
	}
	return "[" + strings.Join(out, ",") + "]"
}

func (s *float64SliceValue) fromString(val string) (float64, error) {
	return strconv.ParseFloat(val, 64)
}

func (s *float64SliceValue) toString(val float64) string {
	return fmt.Sprintf("%f", val)
}

func (s *float64SliceValue) Append(val string) error {
	i, err := s.fromString(val)
	if err != nil {
		return err
	}
	*s.value = append(*s.value, i)
	return nil
}

func (s *float64SliceValue) Replace(val []string) error {
	out := make([]float64, len(val))
	for i, d := range val {
		var err error
		out[i], err = s.fromString(d)
		if err != nil {
			return err
		}
	}
	*s.value = out
	return nil
}

func (s *float64SliceValue) GetSlice() []string {
	out := make([]string, len(*s.value))
	for i, d := range *s.value {
		out[i] = s.toString(d)
	}
	return out
}

func float64SliceConv(val string) (interface{}, error) {
	val = strings.Trim(val, "[]")
	// Empty string would cause a slice with one (empty) entry
	if len(val) == 0 {
		return []float64{}, nil
	}
	ss := strings.Split(val, ",")
	out := make([]float64, len(ss))
	for i, d := range ss {
		var err error
		out[i], err = strconv.ParseFloat(d, 64)
		if err != nil {
			return nil, err
		}

	}
	return out, nil
}

// GetFloat64Slice return the []float64 value of a flag with the given name
func (f *FlagSet) GetFloat64Slice(name string) ([]float64, error) {
	val, err := f.getFlagType(name, "float64Slice", float64SliceConv)
	if err != nil {
		return []float64{}, err
	}
	return val.([]float64), nil
}

// Float64SliceVar defines a float64Slice flag with specified name, default value, and usage string.
// The argument p points to a []float64 variable in which to store the value of the flag.
func (f *FlagSet) Float64SliceVar(p *[]float64, name string, value []float64, usage string) {
	f.VarP(newFloat64SliceValue(value, p), name, "", usage)
}

// Float64SliceVarP is like Float64SliceVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Float64SliceVarP(p *[]float64, name, shorthand string, value []float64, usage string) {
	f.VarP(newFloat64SliceValue(value, p), name, shorthand, usage)
}

// Float64SliceVar defines a float64[] flag with specified name, default value, and usage string.
// The argument p points to a float64[] variable in which to store the value of the flag.
func Float64SliceVar(p *[]float64, name string, value []float64, usage string) {
	CommandLine.VarP(newFloat64SliceValue(value, p), name, "", usage)
}

// Float64SliceVarP is like Float64SliceVar, but accepts a shorthand letter that can be used after a single dash.
func Float64SliceVarP(p *[]float64, name, shorthand string, value []float64, usage string) {
	CommandLine.VarP(newFloat64SliceValue(value, p), name, shorthand, usage)
}

// Float64Slice defines a []float64 flag with specified name, default value, and usage string.
// The return value is the address of a []float64 variable that stores the value of the flag.
func (f *FlagSet) Float64Slice(name string, value []float64, usage string) *[]float64 {
	p := []float64{}
	f.Float64SliceVarP(&p, name, "", value, usage)
	return &p
}

// Float64SliceP is like Float64Slice, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) Float64SliceP(name, shorthand string, value []float64, usage string) *[]float64 {
	p := []float64{}
	f.Float64SliceVarP(&p, name, shorthand, value, usage)
	return &p
}

// Float64Slice defines a []float64 flag with specified name, default value, and usage string.
// The return value is the address of a []float64 variable that stores the value of the flag.
func Float64Slice(name string, value []float64, usage string) *[]float64 {
	return CommandLine.Float64SliceP(name, "", value, usage)
}

// Float64SliceP is like Float64Slice, but accepts a shorthand letter that can be used after a single dash.
func Float64SliceP(name, shorthand string, value []float64, usage string) *[]float64 {
	return CommandLine.Float64SliceP(name, shorthand, value, usage)
}