flags

type Int64List ¶

type Int64List []int64

func (s Int64List) Int64s() []int64

func (s *Int64List) Set(v string) error

func (s *Int64List) String() string

type IntList ¶

type IntList []int

func (s IntList) Ints() []int

func (s *IntList) Set(v string) error

func (s *IntList) String() string

type OptionalBool ¶

type OptionalBool struct {
	IsSet bool
	Value bool
}

OptionalBool is an bool flag that lets you to tell if the flag has been set or not, unlike flag.BoolVar(), which does not.

OptionalBool can distinguish between all three of these conditions:

$ prog -bool=true
$ prog -bool=false
$ prog

OptionalBool supports, but can not distinguish, this additional condition:

$ prog -bool

Like flag.BoolVar(), OptionalBool does not support these conditions:

$ prog -bool true
$ prog -bool false

func (s *OptionalBool) IsBoolFlag() bool

func (s *OptionalBool) Set(x string) error

func (s *OptionalBool) String() string

type OptionalFloat64 ¶

type OptionalFloat64 struct {
	IsSet bool
	Value float64
	// contains filtered or unexported fields
}

OptionalFloat64 is a float64 flag that lets you to tell if the flag has been set or not, unlike flag.Float64Var(), which does not.

OptionalFloat64 can distinguish between all three of these conditions:

$ prog -float64 1.1
$ prog -float64 0
$ prog

func (s *OptionalFloat64) Set(x string) error

func (s *OptionalFloat64) String() string

type OptionalInt ¶

type OptionalInt struct {
	IsSet bool
	Value int
	// contains filtered or unexported fields
}

OptionalInt is an int flag that lets you to tell if the flag has been set or not, unlike flag.IntVar(), which does not.

OptionalInt can distinguish between all three of these conditions:

$ prog -int 1
$ prog -int 0
$ prog -int ""

func (s *OptionalInt) Set(x string) error

func (s *OptionalInt) String() string

type OptionalInt64 ¶

type OptionalInt64 struct {
	IsSet bool
	Value int64
	// contains filtered or unexported fields
}

OptionalInt64 is an int flag that lets you to tell if the flag has been set or not, unlike flag.Int64Var(), which does not.

OptionalInt64 can distinguish between all three of these conditions:

$ prog -int64 1
$ prog -int64 0
$ prog -int64 ""

func (s *OptionalInt64) Set(x string) error

func (s *OptionalInt64) String() string

type OptionalString ¶

type OptionalString struct {
	IsSet bool
	Value string
}

OptionalString is a string flag that lets you to tell if the flag has been set or not, unlike flag.StringVar(), which does not.

OptionalString can distinguish between all three of these conditions:

$ prog -flag foo
$ prog -flag ""j
$ prog

func (s *OptionalString) Set(x string) error

func (s *OptionalString) String() string

type OptionalUint ¶

type OptionalUint struct {
	IsSet bool
	Value uint
	// contains filtered or unexported fields
}

OptionalUint is an int flag that lets you to tell if the flag has been set or not, unlike flag.UintVar(), which does not.

OptionalUint can distinguish between all three of these conditions:

$ prog -uint 1
$ prog -uint 0
$ prog -uint ""

func (s *OptionalUint) Set(x string) error

func (s *OptionalUint) String() string

type OptionalUint64 ¶

type OptionalUint64 struct {
	IsSet bool
	Value uint64
	// contains filtered or unexported fields
}

OptionalUint64 is an int flag that lets you to tell if the flag has been set or not, unlike flag.Uint64Var(), which does not.

OptionalUint64 can distinguish between all three of these conditions:

$ prog -uint64 1
$ prog -uint64 0
$ prog

func (s *OptionalUint64) Set(x string) error

func (s *OptionalUint64) String() string

type StringList ¶

type StringList []string

func (s *StringList) Set(v string) error

func (s *StringList) String() string

func (s StringList) Strings() []string