Grading Homework 3

Point Distribution:
Style (Documentation, Commenting, etc. ): 30 pts
Correctness and Error-testing:
   Part 1: 10 pts
   Part 2: 20 pts
   Part 3: 15 pts
Algorithmic Complexity: 10 pts
Extra Credit: 15 points possible

How:
Your code was checked automatically by a script that fed it different files containing specifically designed input. These lists were all small and should have finished ed in less than a second. Thus, if the code ran for longer than 3 seconds, it was terminated and counted as an infinite loop. Core dumps were also noted, and it was observed whether or not these were due to assertions.

Correctness and Error-Testing:
For error-testing, we tested various possible error situations. Since the overall design of this homework was non-specific, we realize that you might have decided to accept our "errors" as proper input. If you documented these decisions, we noted this and no points were taken off. If you feel that your code was improperly judged, you may challenge your grade by sending an e-mail containing your arguments. For correctness, we ran your code on similar inputs, checking (by sight) for proper output.

• Part 1: (tests are here)
  • empty: an empty sexpr
  • multisexpr1-3: contains several sexprs
  • nested: contains a sexpr with nested sexprs
  • nonnested: contains a sexpr containing only strings (no nesting)
  • parencount1 & parencount2: mismatched parentheses
  • sexpr1per1-2: one sexpr per file
• Part 2: (tests are here)
  • doubleparen: an allowed LISP statement inside an extra pair of ( )'s
  • gentest1-4: a series of LISP "programs," one per file
  • gentest5-8: a series of LISP "programs," many per file
  • lengtherr0,1,3: LISP statements with 0, 1, and 3 entries, respectively
  • misspelledops1-3: tests for spelling
  • noninteger1-2: noninteger operands
  • noops1-3: LISP statements missing the operands
• Part 3: (tests are here)
  • genset1-4: tests of SET with only one sexpr per file
  • genset5: error test for SET with four items in the sexpr
  • genset6-8: tests of SET with multiple sexprs in the file
  • set1-6: series of error tests for SET
• Part 4 (Extra credit): (tests are here)
  • extracredit1-6: correctness and error-tests for the WHILE loop.

Algorithmic Complexity:
Your code was checked to make sure it avoided unneeded recursion and for ease of understanding.