rline

type IO interface {
	// Next returns the next line of runes (excluding '\n') from the input.
	Next() ([]rune, error)

	// Close closes the IO.
	Close() error

	// Stdout is the IO's standard out.
	Stdout() io.Writer

	// Stderr is the IO's standard error out.
	Stderr() io.Writer

	// Interactive determines if the IO is an interactive terminal.
	Interactive() bool

	// Cygwin determines if the IO is a Cygwin interactive terminal.
	Cygwin() bool

	// Prompt sets the prompt for the next interactive line read.
	Prompt(string)

	// Save saves a line of history.
	Save(string) error

	// Password prompts for a password.
	Password() (string, error)

	// ForceIntCyg forces the interactive and cygwin values.
	ForceIntCyg(bool, bool)
}

type Rline struct {
	N func() ([]rune, error)
	C func() error
	//In  io.Reader
	Out io.Writer
	Err io.Writer
	Int bool
	Cyg bool
	P   func(string)
	S   func(string) error
	Pw  func() (string, error)
}