Check-in 3
If you attend class on 1/23, you will have a chance to do this assignment in-class for the C3 grade
Write a Flex rule for Fortran real literals, defined as:
  • An optional sign (+ or -)
  • One of the following:
    • An integer
    • One or more digits followed by a ‘.’ followed by 0 or more digits
    • a ‘.’ followed by one or more digits