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- Fxes Bug #941, students submitting answers over 500 characters in length mad capa engine unhappy
- documented INVALID_FILETYPE
- finished off support for ERROR return (and documented)

    1: <Provided by &EXT() and set external to the resource, required>
    2: resource.partid.opendate   #unix time of when the local machine should let the
    3:                     #student in
    4: 
    5: resource.partid.duedate    #unix time of when the local machine should stop
    6:                     #accepting answers
    7: 
    8: resource.partid.answerdate #unix time of when the local machine should
    9:                     #provide the correct answer to the student
   10: 
   11: resource.partid.acc # a string that can be used to control access, either
   12:                     # IP based or Domain Name based
   13: 
   14: resource.partid.weight     # points the problem is worth
   15: 
   16: resource.partid.maxtries   # maximum number of attempts the student can have
   17: 
   18: resource.partid.problemstyle # style to show a problem in, possible values:
   19:                              # online - show problem in default online mode
   20:                              # bubble - show problem in a mode approriate to
   21:                              #          being printed out for a bubble sheet
   22:                              #          exam
   23: 
   24: resource.partid.type       # type of problem homework can be:
   25:                            # homework - randomized, graded, stored with 
   26:                            #            requesting user, full feeback
   27:                            # exam - randomized, graded, stored with 
   28:                            #        requesting user, minimal feedback
   29:                            # form - unrandomized, ungraded, stored with 
   30:                            #        specified user, full feedback
   31:                            # survey - unrandomized, ungraded, stored with 
   32:                            #          requesting user, full feedback
   33: 
   34: 
   35: <numerical/formula/response needed: (has a default if nonexistant)>
   36: 
   37: resource.partid.responseid.tol   # lots of possibilities here
   38:                     # percentage, range (inclusive and exclusive),
   39: 		    # variable name, etc
   40:                     # 3%
   41:                     # 0.5
   42:                     # .05+
   43:                     # 3%+
   44:                     # 0.5+,.005
   45: 
   46: resource.partid.responseid.sig  # one or two comma sepearted integers, specifying the
   47:                      # number of significatn figures a student must use
   48: 
   49: 
   50: 
   51: <Problem sets using cstore (required):>
   52: resource.partid.solved # if not set, problem yet to be viewed
   53:                 # incorrect_attempted == incorrect and attempted
   54:                 # correct_by_student == correct by student work
   55:                 # correct_by_override == correct, instructor override
   56:                 # correct_by_scantron == correct, scantron graded
   57:                 # incorrect_by_override == incorrect, instructor override
   58:                 # excused == excused, problem no longer counts for student
   59:                 # '' (empty) == not attempted
   60:                 # ungraded_attempted == an ungraded answer has been
   61:                                           sumbitted and stored
   62: resource.partid.tries  # positive integer of number of unsuccessful attempts
   63:                 # made, malformed answers don't count if feedback is
   64:                 # on
   65: 
   66: resource.partid.awarded # float between 0 and 1, percentage of
   67:                  # resource.partid.weight that the student earned.
   68: 
   69: resource.partid.award # final detailed award that was applied to the entire
   70:                       # part of the question, check awarddetail below for
   71:                       # possibilities
   72: 
   73: resource.partid.previous # boolean, is this submission a previous submission
   74: 
   75: resource.partid.responseid.submissons
   76:                     # the student submitted string for the part.response
   77: 
   78: resource.partid.responseid.awarddetail
   79:                      # list of all of the results of grading the submissions
   80:                      # in detailed form of the specific failure
   81: 		     #Possible values:
   82:                      # EXACT_ANS, APPROX_ANS : student is correct
   83:                      # NO_RESPONSE : student submitted no response
   84:                      # MISSING_ANSWER : student submitted some but not
   85:                      #                   all parts of a response
   86:                      # WANTED_NUMERIC : expected a numeric answer and
   87:                      #                   didn't get one
   88: 		     # SIG_FAIL : incorrect number of Significant Figures
   89:                      # UNIT_FAIL : incorrect unit
   90:                      # UNIT_NOTNEEDED : Submitted a unit when one shouldn't
   91:                      # NO_UNIT : needed a unit but none was submitted
   92: 		     # BAD_FORMULA : syntax error in submitted formula
   93:                      # INCORRECT : answer was wrong
   94:                      # SUBMITTED : submission wasn't graded
   95:                      # DRAFT : submission only stored
   96:                      # MISORDERED_RANK : student submitted a poorly order
   97:                      #                   rank response
   98: 		     # ERROR : unable to get a grade
   99:                      # ASSIGNED_SCORE : there is a 
  100:                      #                  resource.partid.responseid.awarded
  101:                      #                  the real awarded should be set to the
  102:                      #                  average of the individual awardeds
  103:                      # TOO_LONG : answer submission to capa engine longer
  104:                      #            than 500 characters
  105:                      # INVALID_FILETYPE : student tried to upload a file
  106:                      #                    that was of an extension that was
  107:                      #                    not specficy allowed 
  108: 
  109: resource.partid.responseid.awarded # float between 0 and 1, percentage of
  110:                  # resource.partid.weight that the student earned.
  111: 
  112: resource.partid.responseid.message (optional) (not yet supported)
  113: 		     # a message that should be shown to the student
  114: 
  115: resource.partid.bonustries (optional) (not yet supported)
  116:                      # if set, added to the maxtries parameter for student 
  117:                      # total number of tries overall
  118: 
  119: <optionresponse> specific
  120: resource.partid.responseid.partid.numfoils
  121:                      # if graded in scantron mode this is set to number
  122:                      # of foils a student saw