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--CHANGES BY ISAAC--
- fixed Unit parsing to allow m/m == 1
- added new function init_array to delete all elements from an array
- fixed parser coded so it can be compiled with bison
- started addition of new functions to compute new random
  distributions

    1: 
    2: Fixed rad != 1/s  in capaUnit.c
    3: add   init_array() function to the user
    4: 
    5: 
    6: 
    7: 
    8: 
    9: --
   10: changes from 4.6.3 to 5.0.0
   11: 
   12: units 
   13: 
   14: Use stacks of data structure to implement 
   15: /WHILE /ENDW loops
   16: /IF /ELSE /ENDIF
   17: 
   18: use EoL token to replace '\n', '\r''\n', and '\r'. 
   19: 
   20: 
   21: 
   22: FILE FORMAT
   23:  setX.db header will look like 
   24:  9999999, 
   25:  1222111111111111111111111
   26:  1111111111111111111111
   27:  abc,y,xy,x
   28:  abcde,...
   29: 
   30: 
   31: 
   32: 
   33: prints a percentage sign in the term summary.
   34: 
   35: Added a rule to the <S_VARIABLE> state in the lexer so \\{Space}*\n
   36: can occur inside a /DIS command
   37: 
   38: Fixed the rule matching in the <S_STRING> state so that \\{Space}+\n 
   39: will actually get matched, (Before the string text matching rule was
   40: getting matched) (Performance detraction)
   41: 
   42: capalogin, and capaweb things ignore the generation of SIGFPE, this is
   43: because capa_check_answer was generating strange Floating point
   44: underflow errors
   45: 
   46: added possible option capaweb_cgibin_path, specify what directory the 
   47: capasbin and capahtml are located in, if not specified defaults to
   48: "capa-bin"
   49: 
   50: Fixed bug in inhibiting the display of the Summary Score in capalogin
   51: (was instead displaying what the option's value was)
   52: 
   53: Now accepts numbers of the form .{Number}+[Ee]{+,-}*{Number}+
   54: (things like .3e-2)
   55: 
   56: Changed message to read "Hand-graded Correct"
   57: 
   58: was not initializing all the values to the defaults in the first
   59: problem in a set in capaCommon.c (capa_parse)
   60: 
   61: capa_set_entry was returning an error if setting the last entry in the
   62: file
   63: 
   64: Now emits a WARNING in all cases of a numerical answer with zero
   65: tolerance except when it is an integer answer and the tolerance of
   66: zero is specified.
   67: 
   68: error messages now contain a WARNING or ERROR whether the error can be
   69: ignored (WARNING) or shouldn't be (ERROR)
   70: 
   71: qzparse now correctly genereates answer strings when running with -Tb
   72: and -Stu
   73: 
   74: --
   75: changes from 4.6.2 to 4.6.3
   76: 
   77: Issac made vast changes, the WhatsNew document will give a good
   78: indication of what is different.
   79: 
   80: --
   81: changes from 4.6.1 to 4.6.2
   82: 
   83: capalogin gets a maximum inactivity time from capa.config file, option
   84: is capalogin_inactivity_delay specified in minutes , default is 60 minutes
   85: 
   86: capalogin gets exam_path and quiz_path from capa.config file, option
   87: is exam_path, quiz_path
   88: 
   89: capalogin now gets delay time from capa.config, option is
   90: capalogin_goodbye_delay, defaults to five if the option is not
   91: specified or capa.config can't be read.
   92: 
   93: allcapaid understands starting set option, specifiying calss directory
   94: on command line, doesn't create files but prints info to screen with
   95: -i option, and can have an output directory specified with the -d
   96: option
   97: 
   98: allcapaid creates a capaID directory and sectionX.id files
   99: 
  100: allpin.c move to allcapaid.c
  101: 
  102: capaCgiUtils.c modified to have friendlier messages on problems that
  103: have not yet been correctly answered, now says "Not correct yet", and
  104: no longer says Incorrect on problems that are incorrect with no more
  105: tries.
  106: 
  107: capa.config was modified, comments must be on their own lines and must
  108: have a # in the first column
  109: 
  110: capa_get_header forgot to init nq before using it.
  111: 
  112: qzparse was incorrectly handling the TeXfooter with the new directory
  113: specification code.
  114: 
  115: changed the exit button so that at least netscape 3.0 and 4.0 browsers 
  116: actually close the window.
  117: 
  118: changed all 'method="link"' to 'method="get"'
  119: 
  120: commented out alot of error condition printfs in capaCommon.c where
  121: the errcondition was signified already by a returned error
  122: code. Cleans up some of the web output when silly things are entered.
  123: 
  124: if VSET is an empty string, set g_vset to 1. (sscanf would assign 0 by
  125: default.)
  126:  
  127: Added Reload Button to top of the capa pages, it resends the same data
  128: as the "Try current set" or View Previous set button did.
  129: 
  130: Explanations are now printed on the web when viewing previous sets.
  131: 
  132: --
  133: changes from 4.6 to 4.6.1 (capasbin, capahtml distributed to colorado)
  134: 
  135: added result code of UNIT_NOTNEEDED for when student specifies a unit
  136: but the answer to a question does not need units. Modified capalogin.c
  137: and capaCgiUtils.c to make use of this new situation along with
  138: changing capaCommon.c:capa_check_answer to return this result
  139: 
  140: fixed a problem where if a student put a space at the end of his answer  
  141: that included units, the space would be thought of as a multiply sign.
  142: 
  143: capa_get_student forgot to copy the student number into the returned
  144: student structure
  145: 
  146: changed the logging of submissions to now only log non blank answers
  147: from students and to use a smaller date string, hopefully this will
  148: minimize the amount of data created.
  149: 
  150: changed the login screen help link to look a button, and added a
  151: similar button go right beside the Exit button on assignment pages.
  152: 
  153: gave qzparse the -d option to specify a different directory for the
  154: output files.
  155: 
  156: changed the "Incorrect, no more tries" messages to correctly display
  157: the last answer and imbedded the last answer back into the web page.
  158: 
  159: created w_log_submissions and modified w_get_input to log the
  160: submissions received from the web page
  161: 
  162: in capaHTML.c error code is printed out when an error is returned from 
  163: w_get_input.
  164: 
  165: modified print_quizz to check w_log_attempt's return value and emit an
  166: error message if it was incabable of doing so.
  167: 
  168: changed w_log_attempt to no longer need a section number argument
  169: 
  170: added more info to the error message about not able to access class
  171: directory.
  172: 
  173: modified capaCgiUtils.h to check the result from getenv for a NULL pointer
  174: (In case the env variable is not set) in all uses of getenv
  175: 
  176: when printing out answers to questions when in VIEW_PREVIOUS_MODE the
  177: format string was missing a %s to print the units out and a <br> to
  178: keep the next problem from starting on the same line.
  179: 
  180: changed all occurances of &times to &#215 as per HTML 4.0 specs
  181: (Macintoshes now correctly display multiplication sign.)
  182: 
  183: changed all occurances of /class.html to /CAPA/class.html
  184: 
  185: modified the qzparse.c and allpin.c to use the new versioning method
  186: 
  187: capasbin and capahtml now emit a comment that has the CAPA_VER and
  188: COMPILE_DATE info
  189: 
  190: in capaCgiUtils.c I moved the hidden input fields to be listed infront
  191: of the questions, this way early button mashers don't forget to send
  192: this info back to the server
  193: 
  194: using the define CAPA_VER and COMIPLE_DATE for the version number and
  195: date of compiling of the code, set in the Makefile
  196: 
  197: --
  198: changes from 4.5 to 4.6
  199: 
  200: changed u_parse_unit to be a series of nested elseifs to handle
  201: conditions where invalid characters appear in the unit spec
  202: 
  203: added global variable gUnitError to be set to one if an error occurs
  204: while parsing a unit spec.
  205: 
  206: 
  207: --
  208: Old updates:
  209: 
  210: 
  211: After July distribution:
  212: 
  213: FIXES: char *c_getpath() has the while loop that looked like:
  214: 
  215:  **** while (isalnum(c) || c == '{' || c == '}' || c == '-' || c == '\' ||
  216:              c == '^'   || c == '_' || c == '/' || c == '.' || c == ':' ||
  217:              c == '+'   || c == '*' || c == '#' || c == '!' || c == '=' || 
  218:              c == ';'   || c == '$' || c == '(' || c == ')' || c == '[' ||
  219:              c == ']'   || c == '?' || c == '>' || c == '<' || c == ',');
  220: 
  221: Update to manual:
  222: 
  223: 1. web_access.log permission should read:
  224:    -rw-rw-r-- instead of -rw-r--r--
  225: 
  226: 2. weight = 0