buffer

func Add(add rune) (requiredUpdates int)

func Down(oldX int, isInsert bool) (possible bool, newX int)

func GetBottom(currentY, getY int) (bottom string)

func GetLine() (previous string)

func Init(name string) (arr []rune)

func Left() (possible bool)

func Log(name, text string)

func Remove() (possible bool, newX, requiredUpdates int)

func Right(isInsert bool) (possible bool)

func Save() (err error)

func Up(oldX int, isInsert bool) (possible bool, newX int)