1package pflag
2
3import (
4 "fmt"
5 "strconv"
6 "strings"
7)
8
9// -- int32Slice Value
10type int32SliceValue struct {
11 value *[]int32
12 changed bool
13}
14
15func newInt32SliceValue(val []int32, p *[]int32) *int32SliceValue {
16 isv := new(int32SliceValue)
17 isv.value = p
18 *isv.value = val
19 return isv
20}
21
22func (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
44func (s *int32SliceValue) Type() string {
45 return "int32Slice"
46}
47
48func (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
56func (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
64func (s *int32SliceValue) toString(val int32) string {
65 return fmt.Sprintf("%d", val)
66}
67
68func (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
77func (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
90func (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
98func 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
120func (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.
130func (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.
135func (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.
141func 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.
146func 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.
152func (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.
159func (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.
167func 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.
172func Int32SliceP(name, shorthand string, value []int32, usage string) *[]int32 {
173 return CommandLine.Int32SliceP(name, shorthand, value, usage)
174}