package match import ( "fmt" ) type Nothing struct{} func NewNothing() Nothing { return Nothing{} } func (self Nothing) Match(s string) bool { return len(s) == 0 } func (self Nothing) Index(s string) (int, []int) { return 0, segments0 } func (self Nothing) Len() int { return lenZero } func (self Nothing) String() string { return fmt.Sprintf("") }