Method peek

scanner.go:107–118

(s int)

}

func (l *lexer) peek(s int) (int, []byte) {
	b := make([]byte, s)

	n, err := l.input.ReadAt(b, l.pos)
	if err == io.EOF {
		return n, b
	} else if err != nil {
		panic(err)
	}

	return n, b
}

func (l *lexer) hasPrefix(s string) bool {
	x := []byte(s)