func NewScanner(str string) *Scanner {
	s, _ := scannerPool.Get().(*Scanner)
	if s == nil {
		s = &Scanner{rd: strings.NewReader(str)}
	} else {
		s.rd.Reset(str)
	}
	s.ch = -2
	s.err = nil
	return s
}
func NewScanner(str string) *Scanner {
	s, _ := scannerPool.Get().(*Scanner)
	if s == nil {
		s = &Scanner{rd: strings.NewReader(str)}
	} else {
		s.rd.Reset(str)
	}
	s.ch = -2
	s.err = nil
	return s
}
func NewScanner ( str string ) * Scanner { s , _ := scannerPool . Get ( ) . ( * Scanner ) if s == nil { s = & Scanner { rd : strings . NewReader ( str ) } } else { s . rd . Reset ( str ) } s . ch = - 2 s . err = nil return s }
// NewScanner creates a new Scaner instance.
NewScanner creates a new Scaner instance .