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  1. package pflag
  2. import "strconv"
  3. // -- uint8 Value
  4. type uint8Value uint8
  5. func newUint8Value(val uint8, p *uint8) *uint8Value {
  6. *p = val
  7. return (*uint8Value)(p)
  8. }
  9. func (i *uint8Value) Set(s string) error {
  10. v, err := strconv.ParseUint(s, 0, 8)
  11. *i = uint8Value(v)
  12. return err
  13. }
  14. func (i *uint8Value) Type() string {
  15. return "uint8"
  16. }
  17. func (i *uint8Value) String() string { return strconv.FormatUint(uint64(*i), 10) }
  18. func uint8Conv(sval string) (interface{}, error) {
  19. v, err := strconv.ParseUint(sval, 0, 8)
  20. if err != nil {
  21. return 0, err
  22. }
  23. return uint8(v), nil
  24. }
  25. // GetUint8 return the uint8 value of a flag with the given name
  26. func (f *FlagSet) GetUint8(name string) (uint8, error) {
  27. val, err := f.getFlagType(name, "uint8", uint8Conv)
  28. if err != nil {
  29. return 0, err
  30. }
  31. return val.(uint8), nil
  32. }
  33. // Uint8Var defines a uint8 flag with specified name, default value, and usage string.
  34. // The argument p points to a uint8 variable in which to store the value of the flag.
  35. func (f *FlagSet) Uint8Var(p *uint8, name string, value uint8, usage string) {
  36. f.VarP(newUint8Value(value, p), name, "", usage)
  37. }
  38. // Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
  39. func (f *FlagSet) Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
  40. f.VarP(newUint8Value(value, p), name, shorthand, usage)
  41. }
  42. // Uint8Var defines a uint8 flag with specified name, default value, and usage string.
  43. // The argument p points to a uint8 variable in which to store the value of the flag.
  44. func Uint8Var(p *uint8, name string, value uint8, usage string) {
  45. CommandLine.VarP(newUint8Value(value, p), name, "", usage)
  46. }
  47. // Uint8VarP is like Uint8Var, but accepts a shorthand letter that can be used after a single dash.
  48. func Uint8VarP(p *uint8, name, shorthand string, value uint8, usage string) {
  49. CommandLine.VarP(newUint8Value(value, p), name, shorthand, usage)
  50. }
  51. // Uint8 defines a uint8 flag with specified name, default value, and usage string.
  52. // The return value is the address of a uint8 variable that stores the value of the flag.
  53. func (f *FlagSet) Uint8(name string, value uint8, usage string) *uint8 {
  54. p := new(uint8)
  55. f.Uint8VarP(p, name, "", value, usage)
  56. return p
  57. }
  58. // Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
  59. func (f *FlagSet) Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
  60. p := new(uint8)
  61. f.Uint8VarP(p, name, shorthand, value, usage)
  62. return p
  63. }
  64. // Uint8 defines a uint8 flag with specified name, default value, and usage string.
  65. // The return value is the address of a uint8 variable that stores the value of the flag.
  66. func Uint8(name string, value uint8, usage string) *uint8 {
  67. return CommandLine.Uint8P(name, "", value, usage)
  68. }
  69. // Uint8P is like Uint8, but accepts a shorthand letter that can be used after a single dash.
  70. func Uint8P(name, shorthand string, value uint8, usage string) *uint8 {
  71. return CommandLine.Uint8P(name, shorthand, value, usage)
  72. }
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