1. Check point #1, Due May 8, 2003.
   Each student is required to do this check point.

   Submit the YACC rules for phase 1 of the project.
   In your YACC code, you need to report error statements.
   For example:
      line 3: bad variable names
      line 5: illegal statements
   Report the number of correct statements at the end.
   For example:
      End of compilation, find 34 correct lines, and 2 lines with errors.