1package pflag
2
3import (
4	"fmt"
5	"strconv"
6)
7
8// -- uint8 Value
9type uint8Value uint8
10
11func newUint8Value(val uint8, p *uint8) *uint8Value {
12	*p = val
13	return (*uint8Value)(p)
14}
15
16func (i *uint8Value) Set(s string) error {
17	v, err := strconv.ParseUint(s, 0, 8)
18	*i = uint8Value(v)
19	return err
20}
21
22func (i *uint8Value) Type() string {
23	return "uint8"
24}
25
26func (i *uint8Value) String() string { return fmt.Sprintf("%v", *i) }
27
28func uint8Conv(sval string) (interface{}, error) {
29	v, err := strconv.ParseUint(sval, 0, 8)
30	if err != nil {
31		return 0, err
32	}
33	return uint8(v), nil
34}
35
36// GetUint8 return the uint8 value of a flag with the given name
37func (f *FlagSet) GetUint8(name string) (uint8, error) {
38	val, err := f.getFlagType(name, "uint8", uint8Conv)
39	if err != nil {
40		return 0, err
41	}
42	return val.(uint8), nil
43}
44
45// Uint8Var defines a uint8 flag with specified name, default value, and usage string.
46// The argument p points to a uint8 variable in which to store the value of the flag.
47func (f *FlagSet) Uint8Var(p *uint8, name string, value uint8, usage string) {
48	f.VarP(newUint8Value(value, p), name, "", usage)
49}
50
51// Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
52func (f *FlagSet) Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
53	f.VarP(newUint8Value(value, p), name, shorthand, usage)
54}
55
56// Uint8Var defines a uint8 flag with specified name, default value, and usage string.
57// The argument p points to a uint8 variable in which to store the value of the flag.
58func Uint8Var(p *uint8, name string, value uint8, usage string) {
59	CommandLine.VarP(newUint8Value(value, p), name, "", usage)
60}
61
62// Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
63func Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
64	CommandLine.VarP(newUint8Value(value, p), name, shorthand, usage)
65}
66
67// Uint8 defines a uint8 flag with specified name, default value, and usage string.
68// The return value is the address of a uint8 variable that stores the value of the flag.
69func (f *FlagSet) Uint8(name string, value uint8, usage string) *uint8 {
70	p := new(uint8)
71	f.Uint8VarP(p, name, "", value, usage)
72	return p
73}
74
75// Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
76func (f *FlagSet) Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
77	p := new(uint8)
78	f.Uint8VarP(p, name, shorthand, value, usage)
79	return p
80}
81
82// Uint8 defines a uint8 flag with specified name, default value, and usage string.
83// The return value is the address of a uint8 variable that stores the value of the flag.
84func Uint8(name string, value uint8, usage string) *uint8 {
85	return CommandLine.Uint8P(name, "", value, usage)
86}
87
88// Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
89func Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
90	return CommandLine.Uint8P(name, shorthand, value, usage)
91}
92