1 package pflag
2 3 import (
4 "fmt"
5 "strconv"
6 "strings"
7 )
8 9 // -- int32Slice Value
10 type int32SliceValue struct {
11 value *[]int32
12 changed bool
13 }
14 15 func newInt32SliceValue(val []int32, p *[]int32) *int32SliceValue {
16 isv := new(int32SliceValue)
17 isv.value = p
18 *isv.value = val
19 return isv
20 }
21 22 func (s *int32SliceValue) Set(val string) error {
23 ss := strings.Split(val, ",")
24 out := make([]int32, len(ss))
25 for i, d := range ss {
26 var err error
27 var temp64 int64
28 temp64, err = strconv.ParseInt(d, 0, 32)
29 if err != nil {
30 return err
31 }
32 out[i] = int32(temp64)
33 34 }
35 if !s.changed {
36 *s.value = out
37 } else {
38 *s.value = append(*s.value, out...)
39 }
40 s.changed = true
41 return nil
42 }
43 44 func (s *int32SliceValue) Type() string {
45 return "int32Slice"
46 }
47 48 func (s *int32SliceValue) String() string {
49 out := make([]string, len(*s.value))
50 for i, d := range *s.value {
51 out[i] = fmt.Sprintf("%d", d)
52 }
53 return "[" + strings.Join(out, ",") + "]"
54 }
55 56 func (s *int32SliceValue) fromString(val string) (int32, error) {
57 t64, err := strconv.ParseInt(val, 0, 32)
58 if err != nil {
59 return 0, err
60 }
61 return int32(t64), nil
62 }
63 64 func (s *int32SliceValue) toString(val int32) string {
65 return fmt.Sprintf("%d", val)
66 }
67 68 func (s *int32SliceValue) Append(val string) error {
69 i, err := s.fromString(val)
70 if err != nil {
71 return err
72 }
73 *s.value = append(*s.value, i)
74 return nil
75 }
76 77 func (s *int32SliceValue) Replace(val []string) error {
78 out := make([]int32, len(val))
79 for i, d := range val {
80 var err error
81 out[i], err = s.fromString(d)
82 if err != nil {
83 return err
84 }
85 }
86 *s.value = out
87 return nil
88 }
89 90 func (s *int32SliceValue) GetSlice() []string {
91 out := make([]string, len(*s.value))
92 for i, d := range *s.value {
93 out[i] = s.toString(d)
94 }
95 return out
96 }
97 98 func int32SliceConv(val string) (interface{}, error) {
99 val = strings.Trim(val, "[]")
100 // Empty string would cause a slice with one (empty) entry
101 if len(val) == 0 {
102 return []int32{}, nil
103 }
104 ss := strings.Split(val, ",")
105 out := make([]int32, len(ss))
106 for i, d := range ss {
107 var err error
108 var temp64 int64
109 temp64, err = strconv.ParseInt(d, 0, 32)
110 if err != nil {
111 return nil, err
112 }
113 out[i] = int32(temp64)
114 115 }
116 return out, nil
117 }
118 119 // GetInt32Slice return the []int32 value of a flag with the given name
120 func (f *FlagSet) GetInt32Slice(name string) ([]int32, error) {
121 val, err := f.getFlagType(name, "int32Slice", int32SliceConv)
122 if err != nil {
123 return []int32{}, err
124 }
125 return val.([]int32), nil
126 }
127 128 // Int32SliceVar defines a int32Slice flag with specified name, default value, and usage string.
129 // The argument p points to a []int32 variable in which to store the value of the flag.
130 func (f *FlagSet) Int32SliceVar(p *[]int32, name string, value []int32, usage string) {
131 f.VarP(newInt32SliceValue(value, p), name, "", usage)
132 }
133 134 // Int32SliceVarP is like Int32SliceVar, but accepts a shorthand letter that can be used after a single dash.
135 func (f *FlagSet) Int32SliceVarP(p *[]int32, name, shorthand string, value []int32, usage string) {
136 f.VarP(newInt32SliceValue(value, p), name, shorthand, usage)
137 }
138 139 // Int32SliceVar defines a int32[] flag with specified name, default value, and usage string.
140 // The argument p points to a int32[] variable in which to store the value of the flag.
141 func Int32SliceVar(p *[]int32, name string, value []int32, usage string) {
142 CommandLine.VarP(newInt32SliceValue(value, p), name, "", usage)
143 }
144 145 // Int32SliceVarP is like Int32SliceVar, but accepts a shorthand letter that can be used after a single dash.
146 func Int32SliceVarP(p *[]int32, name, shorthand string, value []int32, usage string) {
147 CommandLine.VarP(newInt32SliceValue(value, p), name, shorthand, usage)
148 }
149 150 // Int32Slice defines a []int32 flag with specified name, default value, and usage string.
151 // The return value is the address of a []int32 variable that stores the value of the flag.
152 func (f *FlagSet) Int32Slice(name string, value []int32, usage string) *[]int32 {
153 p := []int32{}
154 f.Int32SliceVarP(&p, name, "", value, usage)
155 return &p
156 }
157 158 // Int32SliceP is like Int32Slice, but accepts a shorthand letter that can be used after a single dash.
159 func (f *FlagSet) Int32SliceP(name, shorthand string, value []int32, usage string) *[]int32 {
160 p := []int32{}
161 f.Int32SliceVarP(&p, name, shorthand, value, usage)
162 return &p
163 }
164 165 // Int32Slice defines a []int32 flag with specified name, default value, and usage string.
166 // The return value is the address of a []int32 variable that stores the value of the flag.
167 func Int32Slice(name string, value []int32, usage string) *[]int32 {
168 return CommandLine.Int32SliceP(name, "", value, usage)
169 }
170 171 // Int32SliceP is like Int32Slice, but accepts a shorthand letter that can be used after a single dash.
172 func Int32SliceP(name, shorthand string, value []int32, usage string) *[]int32 {
173 return CommandLine.Int32SliceP(name, shorthand, value, usage)
174 }
175