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[LON-CAPA] /
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lonspreadsheet.pm
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1.109:
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Tue Sep 10 19:04:13 2002 UTC (21 years, 9 months ago) by
matthew
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A few changes.
changed $cfn to $coursefilename
commented out code that thought &Apache::lonnet::usection returned -1 if
the user was not in the course. It returns -1 if the user has no section
listed or if they are not in the course.
Minor reformatting where we get the user data, no code changes at all (yet).
A little more removing &gettype and other calls into ths safe space.
1: #
2: # $Id: lonspreadsheet.pm,v 1.109 2002/09/10 19:04:13 matthew Exp $
3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: # The LearningOnline Network with CAPA
27: # Spreadsheet/Grades Display Handler
28: #
29: # POD required stuff:
30:
31: =head1 NAME
32:
33: lonspreadsheet
34:
35: =head1 SYNOPSIS
36:
37: Spreadsheet interface to internal LON-CAPA data
38:
39: =head1 DESCRIPTION
40:
41: Lonspreadsheet provides course coordinators the ability to manage their
42: students grades online. The students are able to view their own grades, but
43: not the grades of their peers. The spreadsheet is highly customizable,
44: offering the ability to use Perl code to manipulate data, as well as many
45: built-in functions.
46:
47: =head2 Functions available to user of lonspreadsheet
48:
49: =over 4
50:
51: =cut
52:
53: package Apache::lonspreadsheet;
54:
55: use strict;
56: use Safe;
57: use Safe::Hole;
58: use Opcode;
59: use Apache::lonnet;
60: use Apache::Constants qw(:common :http);
61: use GDBM_File;
62: use HTML::TokeParser;
63: use Apache::lonhtmlcommon;
64: #
65: # Caches for previously calculated spreadsheets
66: #
67:
68: my %oldsheets;
69: my %loadedcaches;
70: my %expiredates;
71:
72: #
73: # Cache for stores of an individual user
74: #
75:
76: my $cachedassess;
77: my %cachedstores;
78:
79: #
80: # These cache hashes need to be independent of user, resource and course
81: # (user and course can/should be in the keys)
82: #
83:
84: my %spreadsheets;
85: my %courserdatas;
86: my %userrdatas;
87: my %defaultsheets;
88: my %updatedata;
89:
90: #
91: # These global hashes are dependent on user, course and resource,
92: # and need to be initialized every time when a sheet is calculated
93: #
94: my %courseopt;
95: my %useropt;
96: my %parmhash;
97:
98: #
99: # Some hashes for stats on timing and performance
100: #
101:
102: my %starttimes;
103: my %usedtimes;
104: my %numbertimes;
105:
106: # Stuff that only the screen handler can know
107:
108: my $includedir;
109: my $tmpdir;
110:
111: # =============================================================================
112: # ===================================== Implements an instance of a spreadsheet
113:
114: sub initsheet {
115: my $safeeval = new Safe(shift);
116: my $safehole = new Safe::Hole;
117: $safeeval->permit("entereval");
118: $safeeval->permit(":base_math");
119: $safeeval->permit("sort");
120: $safeeval->deny(":base_io");
121: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
122: $safeeval->share('$@');
123: my $code=<<'ENDDEFS';
124: # ---------------------------------------------------- Inside of the safe space
125:
126: #
127: # f: formulas
128: # t: intermediate format (variable references expanded)
129: # v: output values
130: # c: preloaded constants (A-column)
131: # rl: row label
132: # os: other spreadsheets (for student spreadsheet only)
133:
134: undef %sheet_values;
135: undef %t;
136: undef %f;
137: undef %c;
138: undef %rowlabel;
139: undef @os;
140:
141: $maxrow = 0;
142: $sheettype = '';
143:
144: # filename/reference of the sheet
145: $filename = '';
146:
147: # user data
148: $uname = '';
149: $uhome = '';
150: $udom = '';
151:
152: # course data
153:
154: $csec = '';
155: $chome= '';
156: $cnum = '';
157: $cdom = '';
158: $cid = '';
159: $coursefilename = '';
160:
161: # symb
162:
163: $usymb = '';
164:
165: # error messages
166: $errormsg = '';
167:
168: sub mask {
169: my ($lower,$upper)=@_;
170:
171: $lower=~/([A-Za-z]|\*)(\d+|\*)/;
172: my $la=$1;
173: my $ld=$2;
174:
175: $upper=~/([A-Za-z]|\*)(\d+|\*)/;
176: my $ua=$1;
177: my $ud=$2;
178: my $alpha='';
179: my $num='';
180:
181: if (($la eq '*') || ($ua eq '*')) {
182: $alpha='[A-Za-z]';
183: } else {
184: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
185: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
186: $alpha='['.$la.'-'.$ua.']';
187: } else {
188: $alpha='['.$la.'-Za-'.$ua.']';
189: }
190: }
191:
192: if (($ld eq '*') || ($ud eq '*')) {
193: $num='\d+';
194: } else {
195: if (length($ld)!=length($ud)) {
196: $num.='(';
197: foreach ($ld=~m/\d/g) {
198: $num.='['.$_.'-9]';
199: }
200: if (length($ud)-length($ld)>1) {
201: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
202: }
203: $num.='|';
204: foreach ($ud=~m/\d/g) {
205: $num.='[0-'.$_.']';
206: }
207: $num.=')';
208: } else {
209: my @lda=($ld=~m/\d/g);
210: my @uda=($ud=~m/\d/g);
211: my $i; $j=0; $notdone=1;
212: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
213: if ($lda[$i]==$uda[$i]) {
214: $num.=$lda[$i];
215: $j=$i;
216: } else {
217: $notdone=0;
218: }
219: }
220: if ($j<$#lda-1) {
221: $num.='('.$lda[$j+1];
222: for ($i=$j+2;$i<=$#lda;$i++) {
223: $num.='['.$lda[$i].'-9]';
224: }
225: if ($uda[$j+1]-$lda[$j+1]>1) {
226: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
227: ($#lda-$j-1).'}';
228: }
229: $num.='|'.$uda[$j+1];
230: for ($i=$j+2;$i<=$#uda;$i++) {
231: $num.='[0-'.$uda[$i].']';
232: }
233: $num.=')';
234: } else {
235: if ($lda[$#lda]!=$uda[$#uda]) {
236: $num.='['.$lda[$#lda].'-'.$uda[$#uda].']';
237: }
238: }
239: }
240: }
241: return '^'.$alpha.$num."\$";
242: }
243:
244: #-------------------------------------------------------
245:
246: =item UWCALC(hashname,modules,units,date)
247:
248: returns the proportion of the module
249: weights not previously completed by the student.
250:
251: =over 4
252:
253: =item hashname
254:
255: name of the hash the module dates have been inserted into
256:
257: =item modules
258:
259: reference to a cell which contains a comma deliminated list of modules
260: covered by the assignment.
261:
262: =item units
263:
264: reference to a cell which contains a comma deliminated list of module
265: weights with respect to the assignment
266:
267: =item date
268:
269: reference to a cell which contains the date the assignment was completed.
270:
271: =back
272:
273: =cut
274:
275: #-------------------------------------------------------
276: sub UWCALC {
277: my ($hashname,$modules,$units,$date) = @_;
278: my @Modules = split(/,/,$modules);
279: my @Units = split(/,/,$units);
280: my $total_weight;
281: foreach (@Units) {
282: $total_weight += $_;
283: }
284: my $usum=0;
285: for (my $i=0; $i<=$#Modules; $i++) {
286: if (&HASH($hashname,$Modules[$i]) eq $date) {
287: $usum += $Units[$i];
288: }
289: }
290: return $usum/$total_weight;
291: }
292:
293: #-------------------------------------------------------
294:
295: =item CDLSUM(list)
296:
297: returns the sum of the elements in a cell which contains
298: a Comma Deliminate List of numerical values.
299: 'list' is a reference to a cell which contains a comma deliminated list.
300:
301: =cut
302:
303: #-------------------------------------------------------
304: sub CDLSUM {
305: my ($list)=@_;
306: my $sum;
307: foreach (split/,/,$list) {
308: $sum += $_;
309: }
310: return $sum;
311: }
312:
313: #-------------------------------------------------------
314:
315: =item CDLITEM(list,index)
316:
317: returns the item at 'index' in a Comma Deliminated List.
318:
319: =over 4
320:
321: =item list
322:
323: reference to a cell which contains a comma deliminated list.
324:
325: =item index
326:
327: the Perl index of the item requested (first element in list has
328: an index of 0)
329:
330: =back
331:
332: =cut
333:
334: #-------------------------------------------------------
335: sub CDLITEM {
336: my ($list,$index)=@_;
337: my @Temp = split/,/,$list;
338: return $Temp[$index];
339: }
340:
341: #-------------------------------------------------------
342:
343: =item CDLHASH(name,key,value)
344:
345: loads a comma deliminated list of keys into
346: the hash 'name', all with a value of 'value'.
347:
348: =over 4
349:
350: =item name
351:
352: name of the hash.
353:
354: =item key
355:
356: (a pointer to) a comma deliminated list of keys.
357:
358: =item value
359:
360: a single value to be entered for each key.
361:
362: =back
363:
364: =cut
365:
366: #-------------------------------------------------------
367: sub CDLHASH {
368: my ($name,$key,$value)=@_;
369: my @Keys;
370: my @Values;
371: # Check to see if we have multiple $key values
372: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
373: my $keymask = &mask($key);
374: # Assume the keys are addresses
375: my @Temp = grep /$keymask/,keys(%sheet_values);
376: @Keys = $sheet_values{@Temp};
377: } else {
378: $Keys[0]= $key;
379: }
380: my @Temp;
381: foreach $key (@Keys) {
382: @Temp = (@Temp, split/,/,$key);
383: }
384: @Keys = @Temp;
385: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
386: my $valmask = &mask($value);
387: my @Temp = grep /$valmask/,keys(%sheet_values);
388: @Values =$sheet_values{@Temp};
389: } else {
390: $Values[0]= $value;
391: }
392: $value = $Values[0];
393: # Add values to hash
394: for (my $i = 0; $i<=$#Keys; $i++) {
395: my $key = $Keys[$i];
396: if (! exists ($hashes{$name}->{$key})) {
397: $hashes{$name}->{$key}->[0]=$value;
398: } else {
399: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
400: $hashes{$name}->{$key} = \@Temp;
401: }
402: }
403: return "hash '$name' updated";
404: }
405:
406: #-------------------------------------------------------
407:
408: =item GETHASH(name,key,index)
409:
410: returns the element in hash 'name'
411: reference by the key 'key', at index 'index' in the values list.
412:
413: =cut
414:
415: #-------------------------------------------------------
416: sub GETHASH {
417: my ($name,$key,$index)=@_;
418: if (! defined($index)) {
419: $index = 0;
420: }
421: if ($key =~ /^[A-z]\d+$/) {
422: $key = $sheet_values{$key};
423: }
424: return $hashes{$name}->{$key}->[$index];
425: }
426:
427: #-------------------------------------------------------
428:
429: =item CLEARHASH(name)
430:
431: clears all the values from the hash 'name'
432:
433: =item CLEARHASH(name,key)
434:
435: clears all the values from the hash 'name' associated with the given key.
436:
437: =cut
438:
439: #-------------------------------------------------------
440: sub CLEARHASH {
441: my ($name,$key)=@_;
442: if (defined($key)) {
443: if (exists($hashes{$name}->{$key})) {
444: $hashes{$name}->{$key}=undef;
445: return "hash '$name' key '$key' cleared";
446: }
447: } else {
448: if (exists($hashes{$name})) {
449: $hashes{$name}=undef;
450: return "hash '$name' cleared";
451: }
452: }
453: return "Error in clearing hash";
454: }
455:
456: #-------------------------------------------------------
457:
458: =item HASH(name,key,value)
459:
460: loads values into an internal hash. If a key
461: already has a value associated with it, the values are sorted numerically.
462:
463: =item HASH(name,key)
464:
465: returns the 0th value in the hash 'name' associated with 'key'.
466:
467: =cut
468:
469: #-------------------------------------------------------
470: sub HASH {
471: my ($name,$key,$value)=@_;
472: my @Keys;
473: undef @Keys;
474: my @Values;
475: # Check to see if we have multiple $key values
476: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
477: my $keymask = &mask($key);
478: # Assume the keys are addresses
479: my @Temp = grep /$keymask/,keys(%sheet_values);
480: @Keys = $sheet_values{@Temp};
481: } else {
482: $Keys[0]= $key;
483: }
484: # If $value is empty, return the first value associated
485: # with the first key.
486: if (! $value) {
487: return $hashes{$name}->{$Keys[0]}->[0];
488: }
489: # Check to see if we have multiple $value(s)
490: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
491: my $valmask = &mask($value);
492: my @Temp = grep /$valmask/,keys(%sheet_values);
493: @Values =$sheet_values{@Temp};
494: } else {
495: $Values[0]= $value;
496: }
497: # Add values to hash
498: for (my $i = 0; $i<=$#Keys; $i++) {
499: my $key = $Keys[$i];
500: my $value = ($i<=$#Values ? $Values[$i] : $Values[0]);
501: if (! exists ($hashes{$name}->{$key})) {
502: $hashes{$name}->{$key}->[0]=$value;
503: } else {
504: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
505: $hashes{$name}->{$key} = \@Temp;
506: }
507: }
508: return $Values[-1];
509: }
510:
511: #-------------------------------------------------------
512:
513: =item NUM(range)
514:
515: returns the number of items in the range.
516:
517: =cut
518:
519: #-------------------------------------------------------
520: sub NUM {
521: my $mask=mask(@_);
522: my $num= $#{@{grep(/$mask/,keys(%sheet_values))}}+1;
523: return $num;
524: }
525:
526: sub BIN {
527: my ($low,$high,$lower,$upper)=@_;
528: my $mask=mask($lower,$upper);
529: my $num=0;
530: foreach (grep /$mask/,keys(%sheet_values)) {
531: if (($sheet_values{$_}>=$low) && ($sheet_values{$_}<=$high)) {
532: $num++;
533: }
534: }
535: return $num;
536: }
537:
538:
539: #-------------------------------------------------------
540:
541: =item SUM(range)
542:
543: returns the sum of items in the range.
544:
545: =cut
546:
547: #-------------------------------------------------------
548: sub SUM {
549: my $mask=mask(@_);
550: my $sum=0;
551: foreach (grep /$mask/,keys(%sheet_values)) {
552: $sum+=$sheet_values{$_};
553: }
554: return $sum;
555: }
556:
557: #-------------------------------------------------------
558:
559: =item MEAN(range)
560:
561: compute the average of the items in the range.
562:
563: =cut
564:
565: #-------------------------------------------------------
566: sub MEAN {
567: my $mask=mask(@_);
568: my $sum=0; my $num=0;
569: foreach (grep /$mask/,keys(%sheet_values)) {
570: $sum+=$sheet_values{$_};
571: $num++;
572: }
573: if ($num) {
574: return $sum/$num;
575: } else {
576: return undef;
577: }
578: }
579:
580: #-------------------------------------------------------
581:
582: =item STDDEV(range)
583:
584: compute the standard deviation of the items in the range.
585:
586: =cut
587:
588: #-------------------------------------------------------
589: sub STDDEV {
590: my $mask=mask(@_);
591: my $sum=0; my $num=0;
592: foreach (grep /$mask/,keys(%sheet_values)) {
593: $sum+=$sheet_values{$_};
594: $num++;
595: }
596: unless ($num>1) { return undef; }
597: my $mean=$sum/$num;
598: $sum=0;
599: foreach (grep /$mask/,keys(%sheet_values)) {
600: $sum+=($sheet_values{$_}-$mean)**2;
601: }
602: return sqrt($sum/($num-1));
603: }
604:
605: #-------------------------------------------------------
606:
607: =item PROD(range)
608:
609: compute the product of the items in the range.
610:
611: =cut
612:
613: #-------------------------------------------------------
614: sub PROD {
615: my $mask=mask(@_);
616: my $prod=1;
617: foreach (grep /$mask/,keys(%sheet_values)) {
618: $prod*=$sheet_values{$_};
619: }
620: return $prod;
621: }
622:
623: #-------------------------------------------------------
624:
625: =item MAX(range)
626:
627: compute the maximum of the items in the range.
628:
629: =cut
630:
631: #-------------------------------------------------------
632: sub MAX {
633: my $mask=mask(@_);
634: my $max='-';
635: foreach (grep /$mask/,keys(%sheet_values)) {
636: unless ($max) { $max=$sheet_values{$_}; }
637: if (($sheet_values{$_}>$max) || ($max eq '-')) { $max=$sheet_values{$_}; }
638: }
639: return $max;
640: }
641:
642: #-------------------------------------------------------
643:
644: =item MIN(range)
645:
646: compute the minimum of the items in the range.
647:
648: =cut
649:
650: #-------------------------------------------------------
651: sub MIN {
652: my $mask=mask(@_);
653: my $min='-';
654: foreach (grep /$mask/,keys(%sheet_values)) {
655: unless ($max) { $max=$sheet_values{$_}; }
656: if (($sheet_values{$_}<$min) || ($min eq '-')) {
657: $min=$sheet_values{$_};
658: }
659: }
660: return $min;
661: }
662:
663: #-------------------------------------------------------
664:
665: =item SUMMAX(num,lower,upper)
666:
667: compute the sum of the largest 'num' items in the range from
668: 'lower' to 'upper'
669:
670: =cut
671:
672: #-------------------------------------------------------
673: sub SUMMAX {
674: my ($num,$lower,$upper)=@_;
675: my $mask=mask($lower,$upper);
676: my @inside=();
677: foreach (grep /$mask/,keys(%sheet_values)) {
678: push (@inside,$sheet_values{$_});
679: }
680: @inside=sort(@inside);
681: my $sum=0; my $i;
682: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
683: $sum+=$inside[$i];
684: }
685: return $sum;
686: }
687:
688: #-------------------------------------------------------
689:
690: =item SUMMIN(num,lower,upper)
691:
692: compute the sum of the smallest 'num' items in the range from
693: 'lower' to 'upper'
694:
695: =cut
696:
697: #-------------------------------------------------------
698: sub SUMMIN {
699: my ($num,$lower,$upper)=@_;
700: my $mask=mask($lower,$upper);
701: my @inside=();
702: foreach (grep /$mask/,keys(%sheet_values)) {
703: $inside[$#inside+1]=$sheet_values{$_};
704: }
705: @inside=sort(@inside);
706: my $sum=0; my $i;
707: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
708: $sum+=$inside[$i];
709: }
710: return $sum;
711: }
712:
713: #-------------------------------------------------------
714:
715: =item MINPARM(parametername)
716:
717: Returns the minimum value of the parameters matching the parametername.
718: parametername should be a string such as 'duedate'.
719:
720: =cut
721:
722: #-------------------------------------------------------
723: sub MINPARM {
724: my ($expression) = @_;
725: my $min = undef;
726: study($expression);
727: foreach $parameter (keys(%c)) {
728: next if ($parameter !~ /$expression/);
729: if ((! defined($min)) || ($min > $c{$parameter})) {
730: $min = $c{$parameter}
731: }
732: }
733: return $min;
734: }
735:
736: #-------------------------------------------------------
737:
738: =item MAXPARM(parametername)
739:
740: Returns the maximum value of the parameters matching the input parameter name.
741: parametername should be a string such as 'duedate'.
742:
743: =cut
744:
745: #-------------------------------------------------------
746: sub MAXPARM {
747: my ($expression) = @_;
748: my $max = undef;
749: study($expression);
750: foreach $parameter (keys(%c)) {
751: next if ($parameter !~ /$expression/);
752: if ((! defined($min)) || ($max < $c{$parameter})) {
753: $max = $c{$parameter}
754: }
755: }
756: return $max;
757: }
758:
759: #--------------------------------------------------------
760: sub expandnamed {
761: my $expression=shift;
762: if ($expression=~/^\&/) {
763: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
764: my @vars=split(/\W+/,$formula);
765: my %values=();
766: undef %values;
767: foreach ( @vars ) {
768: my $varname=$_;
769: if ($varname=~/\D/) {
770: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
771: $varname=~s/$var/\(\\w\+\)/g;
772: foreach (keys(%c)) {
773: if ($_=~/$varname/) {
774: $values{$1}=1;
775: }
776: }
777: }
778: }
779: if ($func eq 'EXPANDSUM') {
780: my $result='';
781: foreach (keys(%values)) {
782: my $thissum=$formula;
783: $thissum=~s/$var/$_/g;
784: $result.=$thissum.'+';
785: }
786: $result=~s/\+$//;
787: return $result;
788: } else {
789: return 0;
790: }
791: } else {
792: # it is not a function, so it is a parameter name
793: # We should do the following:
794: # 1. Take the list of parameter names
795: # 2. look through the list for ones that match the parameter we want
796: # 3. If there are no collisions, return the one that matches
797: # 4. If there is a collision, return 'bad parameter name error'
798: my $returnvalue = '';
799: my @matches = ();
800: $#matches = -1;
801: study $expression;
802: foreach $parameter (keys(%c)) {
803: push @matches,$parameter if ($parameter =~ /$expression/);
804: }
805: if ($#matches == 0) {
806: $returnvalue = '$c{\''.$matches[0].'\'}';
807: } elsif ($#matches > 0) {
808: # more than one match. Look for a concise one
809: $returnvalue = "'non-unique parameter name : $expression'";
810: foreach (@matches) {
811: if (/^$expression$/) {
812: $returnvalue = '$c{\''.$_.'\'}';
813: }
814: }
815: } else {
816: $returnvalue = "'bad parameter name : $expression'";
817: }
818: return $returnvalue;
819: }
820: }
821:
822: sub sett {
823: %t=();
824: my $pattern='';
825: if ($sheettype eq 'assesscalc') {
826: $pattern='A';
827: } else {
828: $pattern='[A-Z]';
829: }
830: # Deal with the template row
831: foreach (keys(%f)) {
832: next if ($_!~/template\_(\w)/);
833: my $col=$1;
834: next if ($col=~/^$pattern/);
835: foreach (keys(%f)) {
836: next if ($_!~/A(\d+)/);
837: my $trow=$1;
838: next if (! $trow);
839: # Get the name of this cell
840: my $lb=$col.$trow;
841: # Grab the template declaration
842: $t{$lb}=$f{'template_'.$col};
843: # Replace '#' with the row number
844: $t{$lb}=~s/\#/$trow/g;
845: # Replace '....' with ','
846: $t{$lb}=~s/\.\.+/\,/g;
847: # Replace 'A0' with the value from 'A0'
848: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
849: # Replace parameters
850: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
851: }
852: }
853: # Deal with the normal cells
854: foreach (keys(%f)) {
855: if (($f{$_}) && ($_!~/template\_/)) {
856: my $matches=($_=~/^$pattern(\d+)/);
857: if (($matches) && ($1)) {
858: unless ($f{$_}=~/^\!/) {
859: $t{$_}=$c{$_};
860: }
861: } else {
862: $t{$_}=$f{$_};
863: $t{$_}=~s/\.\.+/\,/g;
864: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
865: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
866: }
867: }
868: }
869: # For inserted lines, [B-Z] is also valid
870: unless ($sheettype eq 'assesscalc') {
871: foreach (keys(%f)) {
872: if ($_=~/[B-Z](\d+)/) {
873: if ($f{'A'.$1}=~/^[\~\-]/) {
874: $t{$_}=$f{$_};
875: $t{$_}=~s/\.\.+/\,/g;
876: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
877: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
878: }
879: }
880: }
881: }
882: # For some reason 'A0' gets special treatment... This seems superfluous
883: # but I imagine it is here for a reason.
884: $t{'A0'}=$f{'A0'};
885: $t{'A0'}=~s/\.\.+/\,/g;
886: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
887: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.&expandnamed($2)/ge;
888: }
889:
890: sub calc {
891: undef %sheet_values;
892: &sett();
893: my $notfinished=1;
894: my $lastcalc='';
895: my $depth=0;
896: while ($notfinished) {
897: $notfinished=0;
898: foreach (keys(%t)) {
899: my $old=$sheet_values{$_};
900: $sheet_values{$_}=eval $t{$_};
901: if ($@) {
902: undef %sheet_values;
903: return $_.': '.$@;
904: }
905: if ($sheet_values{$_} ne $old) { $notfinished=1; $lastcalc=$_; }
906: }
907: $depth++;
908: if ($depth>100) {
909: undef %sheet_values;
910: return $lastcalc.': Maximum calculation depth exceeded';
911: }
912: }
913: return '';
914: }
915:
916: sub templaterow {
917: my @cols=();
918: $cols[0]='<b><font size=+1>Template</font></b>';
919: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
920: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
921: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
922: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
923: my $fm=$f{'template_'.$_};
924: $fm=~s/[\'\"]/\&\#34;/g;
925: push(@cols,"'template_$_','$fm'".'___eq___'.$fm);
926: }
927: return @cols;
928: }
929:
930: #
931: # This is actually used for the student spreadsheet, not the assessment sheet
932: # Do not be fooled by the name!
933: #
934: sub outrowassess {
935: # $n is the current row number
936: my $n=shift;
937: my @cols=();
938: if ($n) {
939: my ($usy,$ufn)=split(/__&&&\__/,$f{'A'.$n});
940: if ($rowlabel{$usy}) {
941: $cols[0]=$rowlabel{$usy}.'<br>'.
942: '<select name="sel_'.$n.'" onChange="changesheet('.$n.')">'.
943: '<option name="default">Default</option>';
944: } else {
945: $cols[0]='';
946: }
947: foreach (@os) {
948: $cols[0].='<option name="'.$_.'"';
949: if ($ufn eq $_) {
950: $cols[0].=' selected';
951: }
952: $cols[0].='>'.$_.'</option>';
953: }
954: $cols[0].='</select>';
955: } else {
956: $cols[0]='<b><font size=+1>Export</font></b>';
957: }
958: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
959: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
960: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
961: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
962: my $fm=$f{$_.$n};
963: $fm=~s/[\'\"]/\&\#34;/g;
964: push(@cols,"'$_$n','$fm'".'___eq___'.$sheet_values{$_.$n});
965: }
966: return @cols;
967: }
968:
969: sub outrow {
970: my $n=shift;
971: my @cols=();
972: if ($n) {
973: $cols[0]=$rowlabel{$f{'A'.$n}};
974: } else {
975: $cols[0]='<b><font size=+1>Export</font></b>';
976: }
977: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
978: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
979: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
980: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
981: my $fm=$f{$_.$n};
982: $fm=~s/[\'\"]/\&\#34;/g;
983: push(@cols,"'$_$n','$fm'".'___eq___'.$sheet_values{$_.$n});
984: }
985: return @cols;
986: }
987:
988: sub exportrowa {
989: my @exportarray=();
990: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
991: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
992: push(@exportarray,$sheet_values{$_.'0'});
993: }
994: return @exportarray;
995: }
996:
997: # ------------------------------------------- End of "Inside of the safe space"
998: ENDDEFS
999: $safeeval->reval($code);
1000: return $safeeval;
1001: }
1002:
1003: # ------------------------------------------------ Add or change formula values
1004:
1005: sub setformulas {
1006: my ($safeeval,%f)=@_;
1007: %{$safeeval->varglob('f')}=%f;
1008: }
1009:
1010: # ------------------------------------------------ Add or change formula values
1011:
1012: sub setconstants {
1013: my ($safeeval,%c)=@_;
1014: %{$safeeval->varglob('c')}=%c;
1015: }
1016:
1017: # --------------------------------------------- Set names of other spreadsheets
1018:
1019: sub setothersheets {
1020: my ($safeeval,@os)=@_;
1021: @{$safeeval->varglob('os')}=@os;
1022: }
1023:
1024: # ------------------------------------------------ Add or change formula values
1025:
1026: sub setrowlabels {
1027: my ($safeeval,%rowlabel)=@_;
1028: %{$safeeval->varglob('rowlabel')}=%rowlabel;
1029: }
1030:
1031: # ------------------------------------------------------- Calculate spreadsheet
1032:
1033: sub calcsheet {
1034: my $safeeval=shift;
1035: return $safeeval->reval('&calc();');
1036: }
1037:
1038: # ------------------------------------------------------------------ Get values
1039:
1040: sub getvalues {
1041: my $safeeval=shift;
1042: return $safeeval->reval('%sheet_values');
1043: }
1044:
1045: # ---------------------------------------------------------------- Get formulas
1046:
1047: sub getformulas {
1048: my $safeeval=shift;
1049: return %{$safeeval->varglob('f')};
1050: }
1051:
1052: # ----------------------------------------------------- Get value of $f{'A'.$n}
1053:
1054: sub getfa {
1055: my ($safeeval,$n)=@_;
1056: return $safeeval->reval('$f{"A'.$n.'"}');
1057: }
1058:
1059: # -------------------------------------------------------------------- Get type
1060:
1061: sub gettype {
1062: my $safeeval=shift;
1063: return $safeeval->reval('$sheettype');
1064: }
1065:
1066: # ------------------------------------------------------------------ Set maxrow
1067:
1068: sub setmaxrow {
1069: my ($safeeval,$row)=@_;
1070: $safeeval->reval('$maxrow='.$row.';');
1071: }
1072:
1073: # ------------------------------------------------------------------ Get maxrow
1074:
1075: sub getmaxrow {
1076: my $safeeval=shift;
1077: return $safeeval->reval('$maxrow');
1078: }
1079:
1080: # ---------------------------------------------------------------- Set filename
1081:
1082: sub setfilename {
1083: my ($safeeval,$fn)=@_;
1084: $safeeval->reval('$filename="'.$fn.'";');
1085: }
1086:
1087: # ---------------------------------------------------------------- Get filename
1088:
1089: sub getfilename {
1090: my $safeeval=shift;
1091: return $safeeval->reval('$filename');
1092: }
1093:
1094: # --------------------------------------------------------------- Get course ID
1095:
1096: sub getcid {
1097: my $safeeval=shift;
1098: return $safeeval->reval('$cid');
1099: }
1100:
1101: # --------------------------------------------------------- Get course filename
1102:
1103: sub getcoursefilename {
1104: my $safeeval=shift;
1105: return $safeeval->reval('$coursefilename');
1106: }
1107:
1108: # ----------------------------------------------------------- Get course number
1109:
1110: sub getcnum {
1111: my $safeeval=shift;
1112: return $safeeval->reval('$cnum');
1113: }
1114:
1115: # ------------------------------------------------------------- Get course home
1116:
1117: sub getchome {
1118: my $safeeval=shift;
1119: return $safeeval->reval('$chome');
1120: }
1121:
1122: # ----------------------------------------------------------- Get course domain
1123:
1124: sub getcdom {
1125: my $safeeval=shift;
1126: return $safeeval->reval('$cdom');
1127: }
1128:
1129: # ---------------------------------------------------------- Get course section
1130:
1131: sub getcsec {
1132: my $safeeval=shift;
1133: return $safeeval->reval('$csec');
1134: }
1135:
1136: # --------------------------------------------------------------- Get user name
1137:
1138: sub getuname {
1139: my $safeeval=shift;
1140: return $safeeval->reval('$uname');
1141: }
1142:
1143: # ------------------------------------------------------------- Get user domain
1144:
1145: sub getudom {
1146: my $safeeval=shift;
1147: return $safeeval->reval('$udom');
1148: }
1149:
1150: # --------------------------------------------------------------- Get user home
1151:
1152: sub getuhome {
1153: my $safeeval=shift;
1154: return $safeeval->reval('$uhome');
1155: }
1156:
1157: # -------------------------------------------------------------------- Get symb
1158:
1159: sub getusymb {
1160: my $safeeval=shift;
1161: return $safeeval->reval('$usymb');
1162: }
1163:
1164: # ------------------------------------------------------------- Export of A-row
1165:
1166: sub exportdata {
1167: my $safeeval=shift;
1168: return $safeeval->reval('&exportrowa()');
1169: }
1170:
1171:
1172: # ========================================================== End of Spreadsheet
1173: # =============================================================================
1174:
1175: #
1176: # Procedures for screen output
1177: #
1178: # --------------------------------------------- Produce output row n from sheet
1179:
1180: sub rown {
1181: my ($safeeval,$n)=@_;
1182: my $defaultbg;
1183: my $rowdata='';
1184: my $dataflag=0;
1185: unless ($n eq '-') {
1186: $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
1187: } else {
1188: $defaultbg='#E0FF';
1189: }
1190: unless ($ENV{'form.showcsv'}) {
1191: $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
1192: } else {
1193: $rowdata.="\n".'"'.$n.'"';
1194: }
1195: my $showf=0;
1196: my $proc;
1197: my $maxred=1;
1198: my $sheettype=&gettype($safeeval);
1199: if ($sheettype eq 'studentcalc') {
1200: $proc='&outrowassess';
1201: $maxred=26;
1202: } else {
1203: $proc='&outrow';
1204: }
1205: if ($sheettype eq 'assesscalc') {
1206: $maxred=1;
1207: } else {
1208: $maxred=26;
1209: }
1210: if (&getfa($safeeval,$n)=~/^[\~\-]/) { $maxred=1; }
1211: if ($n eq '-') {
1212: $proc='&templaterow';
1213: $n=-1;
1214: $dataflag=1;
1215: }
1216: foreach ($safeeval->reval($proc.'('.$n.')')) {
1217: my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
1218: my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
1219: if ((($vl ne '') || ($vl eq '0')) &&
1220: (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
1221: if ($showf==0) { $vl=$_; }
1222: unless ($ENV{'form.showcsv'}) {
1223: if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
1224: if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; }
1225: if (($showf>$maxred) || ((!$n) && ($showf>0))) {
1226: if ($vl eq '') {
1227: $vl='<font size=+2 color='.$bgcolor.'>#</font>';
1228: }
1229: $rowdata.='<td bgcolor='.$bgcolor.'>'.
1230: '<a href="javascript:celledit('.$fm.');">'.$vl.'</a></td>';
1231: } else {
1232: $rowdata.='<td bgcolor='.$bgcolor.'> '.$vl.' </td>';
1233: }
1234: } else {
1235: $rowdata.=',"'.$vl.'"';
1236: }
1237: $showf++;
1238: } # End of foreach($safeval...)
1239: if ($ENV{'form.showall'} || ($dataflag)) {
1240: return $rowdata.($ENV{'form.showcsv'}?'':'</tr>');
1241: } else {
1242: return '';
1243: }
1244: }
1245:
1246: # ------------------------------------------------------------- Print out sheet
1247:
1248: sub outsheet {
1249: my ($r,$safeeval,$sheetdata)=@_;
1250: my $maxred = 26; # The maximum number of cells to show as
1251: # red (uneditable)
1252: # To make student sheets uneditable could we
1253: # set $maxred = 52?
1254: #
1255: my $realm='Course'; # 'assessment', 'user', or 'course' sheet
1256: if ($sheetdata->{'sheettype'} eq 'assesscalc') {
1257: $maxred=1;
1258: $realm='Assessment';
1259: } elsif ($sheetdata->{'sheettype'} eq 'studentcalc') {
1260: $maxred=26;
1261: $realm='User';
1262: }
1263: #
1264: # Column label
1265: my $tabledata;
1266: if ($ENV{'form.showcsv'}) {
1267: $tabledata='<pre>';
1268: } else {
1269: $tabledata='<table border=2><tr><th colspan=2 rowspan=2>'.
1270: '<font size=+2>'.$realm.'</font></th>'.
1271: '<td bgcolor=#FFDDDD colspan='.$maxred.
1272: '><b><font size=+1>Import</font></b></td>'.
1273: '<td colspan='.(52-$maxred).
1274: '><b><font size=+1>Calculations</font></b></td></tr><tr>';
1275: my $showf=0;
1276: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1277: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
1278: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
1279: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
1280: $showf++;
1281: if ($showf<=$maxred) {
1282: $tabledata.='<td bgcolor="#FFDDDD">';
1283: } else {
1284: $tabledata.='<td>';
1285: }
1286: $tabledata.="<b><font size=+1>$_</font></b></td>";
1287: }
1288: $tabledata.='</tr>'.&rown($safeeval,'-').&rown($safeeval,0);
1289: }
1290: $r->print($tabledata);
1291: #
1292: # Prepare to output rows
1293: my $row;
1294: my $maxrow=&getmaxrow($safeeval);
1295: #
1296: my @sortby=();
1297: my @sortidx=();
1298: for ($row=1;$row<=$maxrow;$row++) {
1299: push (@sortby, $safeeval->reval('$f{"A'.$row.'"}'));
1300: push (@sortidx, $row-1);
1301: }
1302: @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1303: #
1304: # Determine the type of child spreadsheets
1305: my $what='Student';
1306: if ($sheetdata->{'sheettype'} eq 'assesscalc') {
1307: $what='Item';
1308: } elsif ($sheetdata->{'sheettype'} eq 'studentcalc') {
1309: $what='Assessment';
1310: }
1311: #
1312: # Loop through the rows and output them one at a time
1313: my $n=0;
1314: for ($row=0;$row<$maxrow;$row++) {
1315: my $thisrow=&rown($safeeval,$sortidx[$row]+1);
1316: if ($thisrow) {
1317: if (($n/25==int($n/25)) && (!$ENV{'form.showcsv'})) {
1318: $r->print("</table>\n<br>\n");
1319: $r->rflush();
1320: $r->print('<table border=2><tr><td> <td>'.$what.'</td>');
1321: $r->print('<td>'.
1322: join('</td><td>',
1323: (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
1324: 'abcdefghijklmnopqrstuvwxyz'))).
1325: "</td></tr>\n");
1326: }
1327: $n++;
1328: $r->print($thisrow);
1329: }
1330: }
1331: $r->print($ENV{'form.showcsv'}?'</pre>':'</table>');
1332: }
1333:
1334: #
1335: # ----------------------------------------------- Read list of available sheets
1336: #
1337: sub othersheets {
1338: my ($safeeval,$stype)=@_;
1339: #
1340: my $cnum = &getcnum($safeeval);
1341: my $cdom = &getcdom($safeeval);
1342: my $chome = &getchome($safeeval);
1343: #
1344: my @alternatives=();
1345: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
1346: my ($tmp) = keys(%results);
1347: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1348: @alternatives = sort (keys(%results));
1349: }
1350: return @alternatives;
1351: }
1352:
1353:
1354: #
1355: # -------------------------------------- Parse a spreadsheet
1356: #
1357: sub parse_sheet {
1358: # $sheetxml is a scalar reference or a scalar
1359: my ($sheetxml) = @_;
1360: if (! ref($sheetxml)) {
1361: my $tmp = $sheetxml;
1362: $sheetxml = \$tmp;
1363: }
1364: my %f;
1365: my $parser=HTML::TokeParser->new($sheetxml);
1366: my $token;
1367: while ($token=$parser->get_token) {
1368: if ($token->[0] eq 'S') {
1369: if ($token->[1] eq 'field') {
1370: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
1371: $parser->get_text('/field');
1372: }
1373: if ($token->[1] eq 'template') {
1374: $f{'template_'.$token->[2]->{'col'}}=
1375: $parser->get_text('/template');
1376: }
1377: }
1378: }
1379: return \%f;
1380: }
1381:
1382: #
1383: # -------------------------------------- Read spreadsheet formulas for a course
1384: #
1385: sub readsheet {
1386: my ($safeeval,$sheetdata,$fn)=@_;
1387: #
1388: my $stype = $sheetdata->{'sheettype'};
1389: my $cnum = $sheetdata->{'cnum'};
1390: my $cdom = $sheetdata->{'cdom'};
1391: my $chome = $sheetdata->{'chome'};
1392: #
1393: if (! defined($fn)) {
1394: # There is no filename. Look for defaults in course and global, cache
1395: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
1396: my %tmphash = &Apache::lonnet::get('environment',
1397: ['spreadsheet_default_'.$stype],
1398: $cdom,$cnum);
1399: my ($tmp) = keys(%tmphash);
1400: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1401: $fn = 'default_'.$stype;
1402: } else {
1403: $fn = $tmphash{'spreadsheet_default_'.$stype};
1404: }
1405: unless (($fn) && ($fn!~/^error\:/)) {
1406: $fn='default_'.$stype;
1407: }
1408: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1409: }
1410: }
1411: # $fn now has a value
1412: &setfilename($safeeval,$fn);
1413: # see if sheet is cached
1414: my $fstring='';
1415: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
1416: &setformulas($safeeval,split(/\_\_\_\;\_\_\_/,$fstring));
1417: } else {
1418: # Not cached, need to read
1419: my %f=();
1420: if ($fn=~/^default\_/) {
1421: my $sheetxml='';
1422: my $fh;
1423: my $dfn=$fn;
1424: $dfn=~s/\_/\./g;
1425: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
1426: $sheetxml=join('',<$fh>);
1427: } else {
1428: $sheetxml='<field row="0" col="A">"Error"</field>';
1429: }
1430: %f=%{&parse_sheet(\$sheetxml)};
1431: } elsif($fn=~/\/*\.spreadsheet$/) {
1432: my $sheetxml=&Apache::lonnet::getfile
1433: (&Apache::lonnet::filelocation('',$fn));
1434: if ($sheetxml == -1) {
1435: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
1436: .$fn.'"</field>';
1437: }
1438: %f=%{&parse_sheet(\$sheetxml)};
1439: } else {
1440: my $sheet='';
1441: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
1442: my ($tmp) = keys(%tmphash);
1443: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1444: foreach (keys(%tmphash)) {
1445: $f{$_}=$tmphash{$_};
1446: }
1447: }
1448: }
1449: # Cache and set
1450: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1451: &setformulas($safeeval,%f);
1452: }
1453: }
1454:
1455: # -------------------------------------------------------- Make new spreadsheet
1456: sub makenewsheet {
1457: my ($uname,$udom,$stype,$usymb)=@_;
1458: my %sheetdata=();
1459: $sheetdata{'uname'} = $uname;
1460: $sheetdata{'udom'} = $udom;
1461: $sheetdata{'sheettype'} = $stype;
1462: $sheetdata{'usymb'} = $usymb;
1463: $sheetdata{'cid'} = $ENV{'request.course.id'};
1464: $sheetdata{'csec'} = &Apache::lonnet::usection
1465: ($udom,$uname,$ENV{'request.course.id'});
1466: $sheetdata{'coursefilename'} = $ENV{'request.course.fn'};
1467: $sheetdata{'cnum'} = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
1468: $sheetdata{'cdom'} = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
1469: $sheetdata{'chome'} = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};
1470: $sheetdata{'uhome'} = &Apache::lonnet::homeserver($uname,$udom);
1471:
1472: my $safeeval=initsheet($stype);
1473: my $initstring = '';
1474: foreach (keys(%sheetdata)) {
1475: $initstring.= qq{\$$_="$sheetdata{$_}";};
1476: }
1477: $safeeval->reval($initstring);
1478: return $safeeval,\%sheetdata;
1479: }
1480:
1481: # ------------------------------------------------------------ Save spreadsheet
1482: sub writesheet {
1483: my ($safeeval,$makedef)=@_;
1484: my $cid=&getcid($safeeval);
1485: if (&Apache::lonnet::allowed('opa',$cid)) {
1486: my %f=&getformulas($safeeval);
1487: my $stype=&gettype($safeeval);
1488: my $cnum=&getcnum($safeeval);
1489: my $cdom=&getcdom($safeeval);
1490: my $chome=&getchome($safeeval);
1491: my $fn=&getfilename($safeeval);
1492: # Cache new sheet
1493: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
1494: # Write sheet
1495: my $sheetdata='';
1496: foreach (keys(%f)) {
1497: unless ($f{$_} eq 'import') {
1498: $sheetdata.=&Apache::lonnet::escape($_).'='.
1499: &Apache::lonnet::escape($f{$_}).'&';
1500: }
1501: }
1502: $sheetdata=~s/\&$//;
1503: my $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.$fn.':'.
1504: $sheetdata,$chome);
1505: if ($reply eq 'ok') {
1506: $reply=&Apache::lonnet::reply('put:'.$cdom.':'.$cnum.':'.
1507: $stype.'_spreadsheets:'.
1508: &Apache::lonnet::escape($fn).
1509: '='.$ENV{'user.name'}.'@'.
1510: $ENV{'user.domain'},
1511: $chome);
1512: if ($reply eq 'ok') {
1513: if ($makedef) {
1514: return &Apache::lonnet::reply('put:'.$cdom.':'.$cnum.
1515: ':environment:'.
1516: 'spreadsheet_default_'.
1517: $stype.'='.
1518: &Apache::lonnet::escape($fn),
1519: $chome);
1520: }
1521: return $reply;
1522: }
1523: return $reply;
1524: }
1525: return $reply;
1526: }
1527: return 'unauthorized';
1528: }
1529:
1530: # ----------------------------------------------- Make a temp copy of the sheet
1531: # "Modified workcopy" - interactive only
1532: #
1533: sub tmpwrite {
1534: my $safeeval=shift;
1535: my $fn=$ENV{'user.name'}.'_'.
1536: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1537: &getfilename($safeeval);
1538: $fn=~s/\W/\_/g;
1539: $fn=$tmpdir.$fn.'.tmp';
1540: my $fh;
1541: if ($fh=Apache::File->new('>'.$fn)) {
1542: print $fh join("\n",&getformulas($safeeval));
1543: }
1544: }
1545:
1546: # ---------------------------------------------------------- Read the temp copy
1547: sub tmpread {
1548: my ($safeeval,$nfield,$nform)=@_;
1549: my $fn=$ENV{'user.name'}.'_'.
1550: $ENV{'user.domain'}.'_spreadsheet_'.&getusymb($safeeval).'_'.
1551: &getfilename($safeeval);
1552: $fn=~s/\W/\_/g;
1553: $fn=$tmpdir.$fn.'.tmp';
1554: my $fh;
1555: my %fo=();
1556: my $countrows=0;
1557: if ($fh=Apache::File->new($fn)) {
1558: my $name;
1559: while ($name=<$fh>) {
1560: chomp($name);
1561: my $value=<$fh>;
1562: chomp($value);
1563: $fo{$name}=$value;
1564: if ($name=~/^A(\d+)$/) {
1565: if ($1>$countrows) {
1566: $countrows=$1;
1567: }
1568: }
1569: }
1570: }
1571: if ($nform eq 'changesheet') {
1572: $fo{'A'.$nfield}=(split(/\_\_\&\&\&\_\_/,$fo{'A'.$nfield}))[0];
1573: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
1574: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
1575: }
1576: } elsif ($nfield eq 'insertrow') {
1577: $countrows++;
1578: my $newrow=substr('000000'.$countrows,-7);
1579: if ($nform eq 'top') {
1580: $fo{'A'.$countrows}='--- '.$newrow;
1581: } else {
1582: $fo{'A'.$countrows}='~~~ '.$newrow;
1583: }
1584: } else {
1585: if ($nfield) { $fo{$nfield}=$nform; }
1586: }
1587: &setformulas($safeeval,%fo);
1588: }
1589:
1590: ##################################################
1591: ##################################################
1592:
1593: =pod
1594:
1595: =item &parmval()
1596:
1597: Determine the value of a parameter.
1598:
1599: Inputs: $what, the parameter needed, $safeeval, the safe space
1600:
1601: Returns: The value of a parameter, or '' if none.
1602:
1603: This function cascades through the possible levels searching for a value for
1604: a parameter. The levels are checked in the following order:
1605: user, course (at section level and course level), map, and lonnet::metadata.
1606: This function uses %parmhash, which must be tied prior to calling it.
1607: This function also requires %courseopt and %useropt to be initialized for
1608: this user and course.
1609:
1610: =cut
1611:
1612: ##################################################
1613: ##################################################
1614: sub parmval {
1615: my ($what,$safeeval,$sheetdata)=@_;
1616: my $symb = $sheetdata->{'usymb'};
1617: unless ($symb) { return ''; }
1618: #
1619: my $cid = $sheetdata->{'cid'};
1620: my $csec = $sheetdata->{'csec'};
1621: my $uname = $sheetdata->{'uname'};
1622: my $udom = $sheetdata->{'udom'};
1623: my $result='';
1624: #
1625: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
1626: # Cascading lookup scheme
1627: my $rwhat=$what;
1628: $what =~ s/^parameter\_//;
1629: $what =~ s/\_([^\_]+)$/\.$1/;
1630: #
1631: my $symbparm = $symb.'.'.$what;
1632: my $mapparm = $mapname.'___(all).'.$what;
1633: my $usercourseprefix = $uname.'_'.$udom.'_'.$cid;
1634: #
1635: my $seclevel = $usercourseprefix.'.['.$csec.'].'.$what;
1636: my $seclevelr = $usercourseprefix.'.['.$csec.'].'.$symbparm;
1637: my $seclevelm = $usercourseprefix.'.['.$csec.'].'.$mapparm;
1638: #
1639: my $courselevel = $usercourseprefix.'.'.$what;
1640: my $courselevelr = $usercourseprefix.'.'.$symbparm;
1641: my $courselevelm = $usercourseprefix.'.'.$mapparm;
1642: # fourth, check user
1643: if ($uname) {
1644: return $useropt{$courselevelr} if ($useropt{$courselevelr});
1645: return $useropt{$courselevelm} if ($useropt{$courselevelm});
1646: return $useropt{$courselevel} if ($useropt{$courselevel});
1647: }
1648: # third, check course
1649: if ($csec) {
1650: return $courseopt{$seclevelr} if ($courseopt{$seclevelr});
1651: return $courseopt{$seclevelm} if ($courseopt{$seclevelm});
1652: return $courseopt{$seclevel} if ($courseopt{$seclevel});
1653: }
1654: #
1655: return $courseopt{$courselevelr} if ($courseopt{$courselevelr});
1656: return $courseopt{$courselevelm} if ($courseopt{$courselevelm});
1657: return $courseopt{$courselevel} if ($courseopt{$courselevel});
1658: # second, check map parms
1659: my $thisparm = $parmhash{$symbparm};
1660: return $thisparm if ($thisparm);
1661: # first, check default
1662: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
1663: }
1664:
1665: # ---------------------------------------------- Update rows for course listing
1666: sub updateclasssheet {
1667: my ($safeeval,$sheetdata) = @_;
1668: my $cnum =$sheetdata->{'cnum'};
1669: my $cdom =$sheetdata->{'cdom'};
1670: my $cid =$sheetdata->{'cid'};
1671: my $chome =$sheetdata->{'chome'};
1672: #
1673: # Read class list and row labels
1674: my %classlist;
1675: my @tmp = &Apache::lonnet::dump('classlist',$cdom,$cnum);
1676: if ($tmp[0] !~ /^error/) {
1677: %classlist = @tmp;
1678: } else {
1679: return 'Could not access course data';
1680: }
1681: undef @tmp;
1682: #
1683: my %currentlist=();
1684: my $now=time;
1685: foreach my $student (keys(%classlist)) {
1686: my ($end,$start)=split(/\:/,$classlist{$student});
1687: my $active=1;
1688: $active = 0 if (($end) && ($now>$end));
1689: $active = 1 if ($ENV{'form.Status'} eq 'Any');
1690: $active = !$active if ($ENV{'form.Status'} eq 'Expired');
1691: if ($active) {
1692: my $rowlabel='';
1693: my ($studentName,$studentDomain)=split(/\:/,$student);
1694: my $studentSection=&Apache::lonnet::usection($studentDomain,
1695: $studentName,$cid);
1696: # if ($studentSection==-1) {
1697: # unless ($ENV{'form.showcsv'}) {
1698: # $rowlabel='<font color=red>Data not available: '.
1699: # $studentName.'</font>';
1700: # } else {
1701: # $rowlabel='ERROR","'.$studentName.
1702: # '","Data not available","","","';
1703: # }
1704: # } else {
1705: my %reply=&Apache::lonnet::idrget($studentDomain,$studentName);
1706: my %studentInformation=&Apache::lonnet::get
1707: ('environment',
1708: ['lastname','generation','firstname','middlename','id'],
1709: $studentDomain,$studentName);
1710: if (! $ENV{'form.showcsv'}) {
1711: $rowlabel='<a href="/adm/studentcalc?uname='.$studentName.
1712: '&udom='.$studentDomain.'">'.
1713: $studentSection.' ';
1714: foreach ('id','firstname','middlename',
1715: 'lastname','generation'){
1716: $rowlabel.=$studentInformation{$_}." ";
1717: }
1718: $rowlabel.='</a>';
1719: } else {
1720: $rowlabel= '"'.join('","',
1721: ($studentSection,
1722: $studentInformation{'id'},
1723: $studentInformation{'firstname'},
1724: $studentInformation{'middlename'},
1725: $studentInformation{'lastname'},
1726: $studentInformation{'generation'})
1727: ).'"';
1728: }
1729: # }
1730: $currentlist{$student}=$rowlabel;
1731: } # end of if ($active)
1732: } # end of foreach my $student (keys(%classlist))
1733: #
1734: # Find discrepancies between the course row table and this
1735: #
1736: my %f=&getformulas($safeeval);
1737: my $changed=0;
1738: #
1739: my $maxrow=0;
1740: my %existing=();
1741: #
1742: # Now obsolete rows
1743: foreach (keys(%f)) {
1744: if ($_=~/^A(\d+)/) {
1745: $maxrow=($1>$maxrow)?$1:$maxrow;
1746: $existing{$f{$_}}=1;
1747: unless ((defined($currentlist{$f{$_}})) || (!$1) ||
1748: ($f{$_}=~/^(\~\~\~|\-\-\-)/)) {
1749: $f{$_}='!!! Obsolete';
1750: $changed=1;
1751: }
1752: }
1753: }
1754: #
1755: # New and unknown keys
1756: foreach (sort keys(%currentlist)) {
1757: unless ($existing{$_}) {
1758: $changed=1;
1759: $maxrow++;
1760: $f{'A'.$maxrow}=$_;
1761: }
1762: }
1763: if ($changed) { &setformulas($safeeval,%f); }
1764: #
1765: &setmaxrow($safeeval,$maxrow);
1766: &setrowlabels($safeeval,%currentlist);
1767: }
1768:
1769: # ----------------------------------- Update rows for student and assess sheets
1770: sub updatestudentassesssheet {
1771: my ($safeeval,$sheetdata) = @_;
1772: my %bighash;
1773: my $stype=$sheetdata->{'sheettype'};
1774: my $uname=$sheetdata->{'uname'};
1775: my $udom =$sheetdata->{'udom'};
1776: my %current=();
1777: if ($updatedata
1778: {$ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom}) {
1779: %current=split(/\_\_\_\;\_\_\_/,
1780: $updatedata{$ENV{'request.course.fn'}.
1781: '_'.$stype.'_'.$uname.'_'.$udom});
1782: } else {
1783: # Tie hash
1784: tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1785: &GDBM_READER(),0640);
1786: if (! tied(%bighash)) {
1787: return 'Could not access course data';
1788: }
1789: # Get all assessments
1790: my %allkeys=('timestamp' =>
1791: 'Timestamp of Last Transaction<br>timestamp',
1792: 'subnumber' =>
1793: 'Number of Submissions<br>subnumber',
1794: 'tutornumber' =>
1795: 'Number of Tutor Responses<br>tutornumber',
1796: 'totalpoints' =>
1797: 'Total Points Granted<br>totalpoints');
1798: my $adduserstr='';
1799: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})){
1800: $adduserstr='&uname='.$uname.'&udom='.$udom;
1801: }
1802: my %allassess =
1803: ('_feedback' =>'<a href="/adm/assesscalc?usymb=_feedback'.
1804: $adduserstr.'">Feedback</a>',
1805: '_evaluation' =>'<a href="/adm/assesscalc?usymb=_evaluation'.
1806: $adduserstr.'">Evaluation</a>',
1807: '_tutoring' =>'<a href="/adm/assesscalc?usymb=_tutoring'.
1808: $adduserstr.'">Tutoring</a>',
1809: '_discussion' =>'<a href="/adm/assesscalc?usymb=_discussion'.
1810: $adduserstr.'">Discussion</a>'
1811: );
1812: while (($_,undef) = each(%bighash)) {
1813: next if ($_!~/^src\_(\d+)\.(\d+)$/);
1814: my $mapid=$1;
1815: my $resid=$2;
1816: my $id=$mapid.'.'.$resid;
1817: my $srcf=$bighash{$_};
1818: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1819: my $symb=
1820: &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
1821: '___'.$resid.'___'.&Apache::lonnet::declutter($srcf);
1822: $allassess{$symb}=
1823: '<a href="/adm/assesscalc?usymb='.$symb.$adduserstr.'">'.
1824: $bighash{'title_'.$id}.'</a>';
1825: next if ($stype ne 'assesscalc');
1826: foreach my $key (split(/\,/,
1827: &Apache::lonnet::metadata($srcf,'keys')
1828: )) {
1829: next if ($key !~ /^(stores|parameter)_/);
1830: my $display=
1831: &Apache::lonnet::metadata($srcf,$key.'.display');
1832: unless ($display) {
1833: $display.=
1834: &Apache::lonnet::metadata($srcf,$key.'.name');
1835: }
1836: $display.='<br>'.$key;
1837: $allkeys{$key}=$display;
1838: } # end of foreach
1839: }
1840: } # end of foreach (keys(%bighash))
1841: untie(%bighash);
1842: #
1843: # %allkeys has a list of storage and parameter displays by unikey
1844: # %allassess has a list of all resource displays by symb
1845: #
1846: if ($stype eq 'assesscalc') {
1847: %current=%allkeys;
1848: } elsif ($stype eq 'studentcalc') {
1849: %current=%allassess;
1850: }
1851: $updatedata{$ENV{'request.course.fn'}.'_'.$stype.'_'.$uname.'_'.$udom}=
1852: join('___;___',%current);
1853: # Get current from cache
1854: }
1855: # Find discrepancies between the course row table and this
1856: #
1857: my %f=&getformulas($safeeval);
1858: my $changed=0;
1859:
1860: my $maxrow=0;
1861: my %existing=();
1862: # Now obsolete rows
1863: foreach (keys(%f)) {
1864: next if ($_!~/^A(\d+)/);
1865: $maxrow=($1>$maxrow)?$1:$maxrow;
1866: my ($usy,$ufn)=split(/\_\_\&\&\&\_\_/,$f{$_});
1867: $existing{$usy}=1;
1868: unless ((defined($current{$usy})) || (!$1) ||
1869: ($f{$_}=~/^(\~\~\~|\-\-\-)/)){
1870: $f{$_}='!!! Obsolete';
1871: $changed=1;
1872: } elsif ($ufn) {
1873: $current{$usy}
1874: =~s/assesscalc\?usymb\=/assesscalc\?ufn\=$ufn\&usymb\=/;
1875: }
1876: }
1877: # New and unknown keys
1878: foreach (keys(%current)) {
1879: unless ($existing{$_}) {
1880: $changed=1;
1881: $maxrow++;
1882: $f{'A'.$maxrow}=$_;
1883: }
1884: }
1885: if ($changed) { &setformulas($safeeval,%f); }
1886: &setmaxrow($safeeval,$maxrow);
1887: &setrowlabels($safeeval,%current);
1888: #
1889: undef %current;
1890: undef %existing;
1891: }
1892:
1893: # ------------------------------------------------ Load data for one assessment
1894:
1895: sub loadstudent {
1896: my ($safeeval,$sheetdata)=@_;
1897: my %c=();
1898: my %f=&getformulas($safeeval);
1899: $cachedassess=$sheetdata->{'uname'}.':'.$sheetdata->{'udom'};
1900: # Get ALL the student preformance data
1901: my @tmp = &Apache::lonnet::dump($sheetdata->{'cid'},
1902: $sheetdata->{'udom'},
1903: $sheetdata->{'uname'},
1904: undef);
1905: if ($tmp[0] !~ /^error:/) {
1906: %cachedstores = @tmp;
1907: }
1908: undef @tmp;
1909: #
1910: my @assessdata=();
1911: foreach (keys(%f)) {
1912: next if ($_!~/^A(\d+)/);
1913: my $row=$1;
1914: next if (($f{$_}=~/^[\!\~\-]/) || ($row==0));
1915: my ($usy,$ufn)=split(/__&&&\__/,$f{$_});
1916: @assessdata=&exportsheet($sheetdata->{'uname'},
1917: $sheetdata->{'udom'},
1918: 'assesscalc',$usy,$ufn);
1919: my $index=0;
1920: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1921: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1922: if ($assessdata[$index]) {
1923: my $col=$_;
1924: if ($assessdata[$index]=~/\D/) {
1925: $c{$col.$row}="'".$assessdata[$index]."'";
1926: } else {
1927: $c{$col.$row}=$assessdata[$index];
1928: }
1929: unless ($col eq 'A') {
1930: $f{$col.$row}='import';
1931: }
1932: }
1933: $index++;
1934: }
1935: }
1936: $cachedassess='';
1937: undef %cachedstores;
1938: &setformulas($safeeval,%f);
1939: &setconstants($safeeval,%c);
1940: }
1941:
1942: # --------------------------------------------------- Load data for one student
1943: #
1944: sub loadcourse {
1945: my ($safeeval,$sheetdata,$r)=@_;
1946: my %c=();
1947: my %f=&getformulas($safeeval);
1948: my $total=0;
1949: foreach (keys(%f)) {
1950: if ($_=~/^A(\d+)/) {
1951: unless ($f{$_}=~/^[\!\~\-]/) { $total++; }
1952: }
1953: }
1954: my $now=0;
1955: my $since=time;
1956: $r->print(<<ENDPOP);
1957: <script>
1958: popwin=open('','popwin','width=400,height=100');
1959: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
1960: '<h3>Spreadsheet Calculation Progress</h3>'+
1961: '<form name=popremain>'+
1962: '<input type=text size=35 name=remaining value=Starting></form>'+
1963: '</body></html>');
1964: popwin.document.close();
1965: </script>
1966: ENDPOP
1967: $r->rflush();
1968: foreach (keys(%f)) {
1969: next if ($_!~/^A(\d+)/);
1970: my $row=$1;
1971: next if (($f{$_}=~/^[\!\~\-]/) || ($row==0));
1972: my @studentdata=&exportsheet(split(/\:/,$f{$_}),
1973: 'studentcalc');
1974: undef %userrdatas;
1975: $now++;
1976: $r->print('<script>popwin.document.popremain.remaining.value="'.
1977: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
1978: ' secs remaining";</script>');
1979: $r->rflush();
1980: #
1981: my $index=0;
1982: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
1983: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
1984: if ($studentdata[$index]) {
1985: my $col=$_;
1986: if ($studentdata[$index]=~/\D/) {
1987: $c{$col.$row}="'".$studentdata[$index]."'";
1988: } else {
1989: $c{$col.$row}=$studentdata[$index];
1990: }
1991: unless ($col eq 'A') {
1992: $f{$col.$row}='import';
1993: }
1994: $index++;
1995: }
1996: }
1997: }
1998: &setformulas($safeeval,%f);
1999: &setconstants($safeeval,%c);
2000: $r->print('<script>popwin.close()</script>');
2001: $r->rflush();
2002: }
2003:
2004: # ------------------------------------------------ Load data for one assessment
2005: #
2006: sub loadassessment {
2007: my ($safeeval,$sheetdata)=@_;
2008:
2009: my $uhome = $sheetdata->{'uhome'};
2010: my $uname = $sheetdata->{'uname'};
2011: my $udom = $sheetdata->{'udom'};
2012: my $symb = $sheetdata->{'usymb'};
2013: my $cid = $sheetdata->{'cid'};
2014: my $cnum = $sheetdata->{'cnum'};
2015: my $cdom = $sheetdata->{'cdom'};
2016: my $chome = $sheetdata->{'chome'};
2017:
2018: my $namespace;
2019: unless ($namespace=$cid) { return ''; }
2020: # Get stored values
2021: my %returnhash=();
2022: if ($cachedassess eq $uname.':'.$udom) {
2023: #
2024: # get data out of the dumped stores
2025: #
2026: my $version=$cachedstores{'version:'.$symb};
2027: my $scope;
2028: for ($scope=1;$scope<=$version;$scope++) {
2029: foreach (split(/\:/,$cachedstores{$scope.':keys:'.$symb})) {
2030: $returnhash{$_}=$cachedstores{$scope.':'.$symb.':'.$_};
2031: }
2032: }
2033: } else {
2034: #
2035: # restore individual
2036: #
2037: %returnhash = &Apache::lonnet::restore($symb,$namespace,$udom,$uname);
2038: for (my $version=1;$version<=$returnhash{'version'};$version++) {
2039: foreach (split(/\:/,$returnhash{$version.':keys'})) {
2040: $returnhash{$_}=$returnhash{$version.':'.$_};
2041: }
2042: }
2043: }
2044: #
2045: # returnhash now has all stores for this resource
2046: # convert all "_" to "." to be able to use libraries, multiparts, etc
2047: #
2048: # This is dumb. It is also necessary :(
2049: my @oldkeys=keys %returnhash;
2050: #
2051: foreach (@oldkeys) {
2052: my $name=$_;
2053: my $value=$returnhash{$_};
2054: delete $returnhash{$_};
2055: $name=~s/\_/\./g;
2056: $returnhash{$name}=$value;
2057: }
2058: # initialize coursedata and userdata for this user
2059: undef %courseopt;
2060: undef %useropt;
2061:
2062: my $userprefix=$uname.'_'.$udom.'_';
2063:
2064: unless ($uhome eq 'no_host') {
2065: # Get coursedata
2066: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
2067: my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
2068: ':resourcedata',$chome);
2069: if ($reply!~/^error\:/) {
2070: $courserdatas{$cid}=$reply;
2071: $courserdatas{$cid.'.last_cache'}=time;
2072: }
2073: }
2074: foreach (split(/\&/,$courserdatas{$cid})) {
2075: my ($name,$value)=split(/\=/,$_);
2076: $courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
2077: &Apache::lonnet::unescape($value);
2078: }
2079: # Get userdata (if present)
2080: unless ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
2081: my $reply=
2082: &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
2083: if ($reply!~/^error\:/) {
2084: $userrdatas{$uname.'___'.$udom}=$reply;
2085: $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
2086: }
2087: }
2088: foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
2089: my ($name,$value)=split(/\=/,$_);
2090: $useropt{$userprefix.&Apache::lonnet::unescape($name)}=
2091: &Apache::lonnet::unescape($value);
2092: }
2093: }
2094: # now courseopt, useropt initialized for this user and course
2095: # (used by parmval)
2096: #
2097: # Load keys for this assessment only
2098: #
2099: my %thisassess=();
2100: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
2101: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
2102: $thisassess{$_}=1;
2103: }
2104: #
2105: # Load parameters
2106: #
2107: my %c=();
2108: if (tie(%parmhash,'GDBM_File',
2109: &getcoursefilename($safeeval).'_parms.db',&GDBM_READER(),0640)) {
2110: my %f=&getformulas($safeeval);
2111: foreach (keys(%f)) {
2112: next if ($_!~/^A/);
2113: next if ($f{$_}=~/^[\!\~\-]/);
2114: if ($f{$_}=~/^parameter/) {
2115: if ($thisassess{$f{$_}}) {
2116: my $val=&parmval($f{$_},$safeeval,$sheetdata);
2117: $c{$_}=$val;
2118: $c{$f{$_}}=$val;
2119: }
2120: } else {
2121: my $key=$f{$_};
2122: my $ckey=$key;
2123: $key=~s/^stores\_/resource\./;
2124: $key=~s/\_/\./g;
2125: $c{$_}=$returnhash{$key};
2126: $c{$ckey}=$returnhash{$key};
2127: }
2128: }
2129: untie(%parmhash);
2130: }
2131: &setconstants($safeeval,%c);
2132: }
2133:
2134: # --------------------------------------------------------- Various form fields
2135:
2136: sub textfield {
2137: my ($title,$name,$value)=@_;
2138: return "\n<p><b>$title:</b><br>".
2139: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
2140: }
2141:
2142: sub hiddenfield {
2143: my ($name,$value)=@_;
2144: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
2145: }
2146:
2147: sub selectbox {
2148: my ($title,$name,$value,%options)=@_;
2149: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
2150: foreach (sort keys(%options)) {
2151: $selout.='<option value="'.$_.'"';
2152: if ($_ eq $value) { $selout.=' selected'; }
2153: $selout.='>'.$options{$_}.'</option>';
2154: }
2155: return $selout.'</select>';
2156: }
2157:
2158: # =============================================== Update information in a sheet
2159: #
2160: # Add new users or assessments, etc.
2161: #
2162:
2163: sub updatesheet {
2164: my ($safeeval,$sheetdata)=@_;
2165: my $stype=$sheetdata->{'sheettype'};
2166: if ($stype eq 'classcalc') {
2167: return &updateclasssheet($safeeval,$sheetdata);
2168: } else {
2169: return &updatestudentassesssheet($safeeval,$sheetdata);
2170: }
2171: }
2172:
2173: # =================================================== Load the rows for a sheet
2174: #
2175: # Import the data for rows
2176: #
2177:
2178: sub loadrows {
2179: my ($safeeval,$sheetdata,$r)=@_;
2180: my $stype=$sheetdata->{'sheettype'};
2181: if ($stype eq 'classcalc') {
2182: &loadcourse($safeeval,$sheetdata,$r);
2183: } elsif ($stype eq 'studentcalc') {
2184: &loadstudent($safeeval,$sheetdata);
2185: } else {
2186: &loadassessment($safeeval,$sheetdata);
2187: }
2188: }
2189:
2190: # ======================================================= Forced recalculation?
2191:
2192: sub checkthis {
2193: my ($keyname,$time)=@_;
2194: return ($time<$expiredates{$keyname});
2195: }
2196:
2197: sub forcedrecalc {
2198: my ($uname,$udom,$stype,$usymb)=@_;
2199: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2200: my $time=$oldsheets{$key.'.time'};
2201: if ($ENV{'form.forcerecalc'}) { return 1; }
2202: unless ($time) { return 1; }
2203: if ($stype eq 'assesscalc') {
2204: my $map=(split(/\_\_\_/,$usymb))[0];
2205: if (&checkthis('::assesscalc:',$time) ||
2206: &checkthis('::assesscalc:'.$map,$time) ||
2207: &checkthis('::assesscalc:'.$usymb,$time) ||
2208: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
2209: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
2210: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
2211: return 1;
2212: }
2213: } else {
2214: if (&checkthis('::studentcalc:',$time) ||
2215: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
2216: return 1;
2217: }
2218: }
2219: return 0;
2220: }
2221:
2222: # ============================================================== Export handler
2223: #
2224: # Non-interactive call from with program
2225: #
2226:
2227: sub exportsheet {
2228: my ($uname,$udom,$stype,$usymb,$fn)=@_;
2229: my @exportarr=();
2230: if (($usymb=~/^\_(\w+)/) && (!$fn)) {
2231: $fn='default_'.$1;
2232: }
2233: #
2234: # Check if cached
2235: #
2236: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
2237: my $found='';
2238: if ($oldsheets{$key}) {
2239: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2240: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2241: if ($name eq $fn) {
2242: $found=$value;
2243: }
2244: }
2245: }
2246: unless ($found) {
2247: &cachedssheets($uname,$udom,&Apache::lonnet::homeserver($uname,$udom));
2248: if ($oldsheets{$key}) {
2249: foreach (split(/\_\_\_\&\_\_\_/,$oldsheets{$key})) {
2250: my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
2251: if ($name eq $fn) {
2252: $found=$value;
2253: }
2254: }
2255: }
2256: }
2257: #
2258: # Check if still valid
2259: #
2260: if ($found) {
2261: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
2262: $found='';
2263: }
2264: }
2265: if ($found) {
2266: #
2267: # Return what was cached
2268: #
2269: @exportarr=split(/\_\_\_\;\_\_\_/,$found);
2270: } else {
2271: #
2272: # Not cached
2273: #
2274: my ($thissheet,$sheetdata)=&makenewsheet($uname,$udom,$stype,$usymb);
2275: &readsheet($thissheet,$sheetdata,$fn);
2276: &updatesheet($thissheet,$sheetdata);
2277: &loadrows($thissheet,$sheetdata);
2278: &calcsheet($thissheet,$sheetdata);
2279: @exportarr=&exportdata($thissheet,$sheetdata);
2280: #
2281: # Store now
2282: #
2283: my $cid=$ENV{'request.course.id'};
2284: my $current='';
2285: if ($stype eq 'studentcalc') {
2286: $current=&Apache::lonnet::reply('get:'.
2287: $ENV{'course.'.$cid.'.domain'}.':'.
2288: $ENV{'course.'.$cid.'.num'}.
2289: ':nohist_calculatedsheets:'.
2290: &Apache::lonnet::escape($key),
2291: $ENV{'course.'.$cid.'.home'});
2292: } else {
2293: $current=&Apache::lonnet::reply('get:'.$sheetdata->{'udom'}.':'.
2294: $sheetdata->{'uname'}.
2295: ':nohist_calculatedsheets_'.
2296: $ENV{'request.course.id'}.':'.
2297: &Apache::lonnet::escape($key),
2298: $sheetdata->{'uhome'});
2299: }
2300: my %currentlystored=();
2301: unless ($current=~/^error\:/) {
2302: foreach (split(/___&\___/,&Apache::lonnet::unescape($current))) {
2303: my ($name,$value)=split(/___=___/,$_);
2304: $currentlystored{$name}=$value;
2305: }
2306: }
2307: $currentlystored{$fn}=join('___;___',@exportarr);
2308: #
2309: my $newstore='';
2310: foreach (keys(%currentlystored)) {
2311: if ($newstore) { $newstore.='___&___'; }
2312: $newstore.=$_.'___=___'.$currentlystored{$_};
2313: }
2314: my $now=time;
2315: if ($stype eq 'studentcalc') {
2316: &Apache::lonnet::reply('put:'.
2317: $ENV{'course.'.$cid.'.domain'}.':'.
2318: $ENV{'course.'.$cid.'.num'}.
2319: ':nohist_calculatedsheets:'.
2320: &Apache::lonnet::escape($key).'='.
2321: &Apache::lonnet::escape($newstore).'&'.
2322: &Apache::lonnet::escape($key).'.time='.$now,
2323: $ENV{'course.'.$cid.'.home'});
2324: } else {
2325: &Apache::lonnet::reply('put:'.
2326: $sheetdata->{'udom'}.':'.
2327: $sheetdata->{'uname'}.
2328: ':nohist_calculatedsheets_'.
2329: $ENV{'request.course.id'}.':'.
2330: &Apache::lonnet::escape($key).'='.
2331: &Apache::lonnet::escape($newstore).'&'.
2332: &Apache::lonnet::escape($key).'.time='.$now,
2333: $sheetdata->{'uhome'});
2334: }
2335: }
2336: return @exportarr;
2337: }
2338:
2339: # ============================================================ Expiration Dates
2340: #
2341: # Load previously cached student spreadsheets for this course
2342: #
2343: sub expirationdates {
2344: undef %expiredates;
2345: my $cid=$ENV{'request.course.id'};
2346: my $reply=&Apache::lonnet::reply('dump:'.
2347: $ENV{'course.'.$cid.'.domain'}.':'.
2348: $ENV{'course.'.$cid.'.num'}.
2349: ':nohist_expirationdates',
2350: $ENV{'course.'.$cid.'.home'});
2351: unless ($reply=~/^error\:/) {
2352: foreach (split(/\&/,$reply)) {
2353: my ($name,$value)=split(/\=/,$_);
2354: $expiredates{&Apache::lonnet::unescape($name)}
2355: =&Apache::lonnet::unescape($value);
2356: }
2357: }
2358: }
2359:
2360: # ===================================================== Calculated sheets cache
2361: #
2362: # Load previously cached student spreadsheets for this course
2363: #
2364:
2365: sub cachedcsheets {
2366: my $cid=$ENV{'request.course.id'};
2367: my $reply=&Apache::lonnet::reply('dump:'.
2368: $ENV{'course.'.$cid.'.domain'}.':'.
2369: $ENV{'course.'.$cid.'.num'}.
2370: ':nohist_calculatedsheets',
2371: $ENV{'course.'.$cid.'.home'});
2372: unless ($reply=~/^error\:/) {
2373: foreach ( split(/\&/,$reply)) {
2374: my ($name,$value)=split(/\=/,$_);
2375: $oldsheets{&Apache::lonnet::unescape($name)}
2376: =&Apache::lonnet::unescape($value);
2377: }
2378: }
2379: }
2380:
2381: # ===================================================== Calculated sheets cache
2382: #
2383: # Load previously cached assessment spreadsheets for this student
2384: #
2385:
2386: sub cachedssheets {
2387: my ($sname,$sdom,$shome)=@_;
2388: unless (($loadedcaches{$sname.'_'.$sdom}) || ($shome eq 'no_host')) {
2389: my $cid=$ENV{'request.course.id'};
2390: my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.
2391: ':nohist_calculatedsheets_'.
2392: $ENV{'request.course.id'},
2393: $shome);
2394: unless ($reply=~/^error\:/) {
2395: foreach ( split(/\&/,$reply)) {
2396: my ($name,$value)=split(/\=/,$_);
2397: $oldsheets{&Apache::lonnet::unescape($name)}
2398: =&Apache::lonnet::unescape($value);
2399: }
2400: }
2401: $loadedcaches{$sname.'_'.$sdom}=1;
2402: }
2403: }
2404:
2405: # ===================================================== Calculated sheets cache
2406: #
2407: # Load previously cached assessment spreadsheets for this student
2408: #
2409:
2410: # ================================================================ Main handler
2411: #
2412: # Interactive call to screen
2413: #
2414: #
2415:
2416:
2417: sub handler {
2418: my $r=shift;
2419: if ($r->header_only) {
2420: $r->content_type('text/html');
2421: $r->send_http_header;
2422: return OK;
2423: }
2424: # Global directory configs
2425: $includedir = $r->dir_config('lonIncludes');
2426: $tmpdir = $r->dir_config('lonDaemons').'/tmp/';
2427: # Needs to be in a course
2428: if (! $ENV{'request.course.fn'}) {
2429: # Not in a course, or not allowed to modify parms
2430: $ENV{'user.error.msg'}=
2431: $r->uri.":opa:0:0:Cannot modify spreadsheet";
2432: return HTTP_NOT_ACCEPTABLE;
2433: }
2434: # Get query string for limited number of parameters
2435: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2436: ['uname','udom','usymb','ufn']);
2437: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'})) {
2438: $ENV{'form.ufn'}='default_'.$1;
2439: }
2440: # Interactive loading of specific sheet?
2441: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
2442: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
2443: }
2444: #
2445: # Determine the user name and domain for the sheet.
2446: my $aname;
2447: my $adom;
2448: unless ($ENV{'form.uname'}) {
2449: $aname=$ENV{'user.name'};
2450: $adom=$ENV{'user.domain'};
2451: } else {
2452: $aname=$ENV{'form.uname'};
2453: $adom=$ENV{'form.udom'};
2454: }
2455: #
2456: # Open page
2457: $r->content_type('text/html');
2458: $r->header_out('Cache-control','no-cache');
2459: $r->header_out('Pragma','no-cache');
2460: $r->send_http_header;
2461: # Screen output
2462: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
2463: $r->print(<<ENDSCRIPT);
2464: <script language="JavaScript">
2465:
2466: function celledit(cn,cf) {
2467: var cnf=prompt(cn,cf);
2468: if (cnf!=null) {
2469: document.sheet.unewfield.value=cn;
2470: document.sheet.unewformula.value=cnf;
2471: document.sheet.submit();
2472: }
2473: }
2474:
2475: function changesheet(cn) {
2476: document.sheet.unewfield.value=cn;
2477: document.sheet.unewformula.value='changesheet';
2478: document.sheet.submit();
2479: }
2480:
2481: function insertrow(cn) {
2482: document.sheet.unewfield.value='insertrow';
2483: document.sheet.unewformula.value=cn;
2484: document.sheet.submit();
2485: }
2486:
2487: </script>
2488: ENDSCRIPT
2489: $r->print('</head>'.&Apache::loncommon::bodytag('Grades Spreadsheet').
2490: '<form action="'.$r->uri.'" name=sheet method=post>');
2491: $r->print(&hiddenfield('uname',$ENV{'form.uname'}).
2492: &hiddenfield('udom',$ENV{'form.udom'}).
2493: &hiddenfield('usymb',$ENV{'form.usymb'}).
2494: &hiddenfield('unewfield','').
2495: &hiddenfield('unewformula',''));
2496: $r->rflush();
2497: #
2498: # Full recalc?
2499: if ($ENV{'form.forcerecalc'}) {
2500: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
2501: undef %spreadsheets;
2502: undef %courserdatas;
2503: undef %userrdatas;
2504: undef %defaultsheets;
2505: undef %updatedata;
2506: }
2507: # Read new sheet or modified worksheet
2508: $r->uri=~/\/(\w+)$/;
2509: my ($asheet,$asheetdata)=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
2510: #
2511: # If a new formula had been entered, go from work copy
2512: if ($ENV{'form.unewfield'}) {
2513: $r->print('<h2>Modified Workcopy</h2>');
2514: $ENV{'form.unewformula'}=~s/\'/\"/g;
2515: $r->print('<p>New formula: '.$ENV{'form.unewfield'}.'='.
2516: $ENV{'form.unewformula'}.'<p>');
2517: &setfilename($asheet,$ENV{'form.ufn'});
2518: &tmpread($asheet,$ENV{'form.unewfield'},$ENV{'form.unewformula'});
2519: } elsif ($ENV{'form.saveas'}) {
2520: &setfilename($asheet,$ENV{'form.ufn'});
2521: &tmpread($asheet);
2522: } else {
2523: &readsheet($asheet,$asheetdata,$ENV{'form.ufn'});
2524: }
2525: # Print out user information
2526: unless ($asheetdata->{'sheettype'} eq 'classcalc') {
2527: $r->print('<p><b>User:</b> '.$asheetdata->{'uname'}.
2528: '<br><b>Domain:</b> '.$asheetdata->{'udom'});
2529: # if (&getcsec($asheet) eq '-1') {
2530: # $r->print('<h3><font color=red>'.
2531: # 'Not a student in this course</font></h3>');
2532: # } else {
2533: $r->print('<br><b>Section/Group:</b> '.$asheetdata->{'csec'});
2534: # }
2535: if ($ENV{'form.usymb'}) {
2536: $r->print('<br><b>Assessment:</b> <tt>'.
2537: $ENV{'form.usymb'}.'</tt>');
2538: }
2539: }
2540: #
2541: # Check user permissions
2542: if (($asheetdata->{'sheettype'} eq 'classcalc' ) ||
2543: ($asheetdata->{'uname'} ne $ENV{'user.name'} ) ||
2544: ($asheetdata->{'udom'} ne $ENV{'user.domain'})) {
2545: unless (&Apache::lonnet::allowed('vgr',$asheetdata->{'cid'})) {
2546: $r->print('<h1>Access Permission Denied</h1>'.
2547: '</form></body></html>');
2548: return OK;
2549: }
2550: }
2551: # Additional options
2552: $r->print('<br />'.
2553: '<input type="submit" name="forcerecalc" '.
2554: 'value="Completely Recalculate Sheet"><p>');
2555: if ($asheetdata->{'sheettype'} eq 'assesscalc') {
2556: $r->print('<p><font size=+2>'.
2557: '<a href="/adm/studentcalc?'.
2558: 'uname='.$asheetdata->{'uname'}.
2559: '&udom='.$asheetdata->{'udom'}.'">'.
2560: 'Level up: Student Sheet</a></font><p>');
2561: }
2562: if (($asheetdata->{'sheettype'} eq 'studentcalc') &&
2563: (&Apache::lonnet::allowed('vgr',$asheetdata->{'cid'}))) {
2564: $r->print ('<p><font size=+2><a href="/adm/classcalc">'.
2565: 'Level up: Course Sheet</a></font><p>');
2566: }
2567: # Save dialog
2568: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2569: my $fname=$ENV{'form.ufn'};
2570: $fname=~s/\_[^\_]+$//;
2571: if ($fname eq 'default') { $fname='course_default'; }
2572: $r->print('<input type=submit name=saveas value="Save as ...">'.
2573: '<input type=text size=20 name=newfn value="'.$fname.'">'.
2574: 'make default: <input type=checkbox name="makedefufn"><p>');
2575: }
2576: $r->print(&hiddenfield('ufn',&getfilename($asheet)));
2577: # Load dialog
2578: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2579: $r->print('<p><input type=submit name=load value="Load ...">'.
2580: '<select name="loadthissheet">'.
2581: '<option name="default">Default</option>');
2582: foreach (&othersheets($asheet,$asheetdata->{'sheettype'})) {
2583: $r->print('<option name="'.$_.'"');
2584: if ($ENV{'form.ufn'} eq $_) {
2585: $r->print(' selected');
2586: }
2587: $r->print('>'.$_.'</option>');
2588: }
2589: $r->print('</select><p>');
2590: if ($asheetdata->{'sheettype'} eq 'studentcalc') {
2591: &setothersheets($asheet,&othersheets($asheet,'assesscalc'));
2592: }
2593: }
2594: # Cached sheets
2595: &expirationdates();
2596: undef %oldsheets;
2597: undef %loadedcaches;
2598: if ($asheetdata->{'sheettype'} eq 'classcalc') {
2599: $r->print("Loading previously calculated student sheets ...\n");
2600: $r->rflush();
2601: &cachedcsheets();
2602: } elsif ($asheetdata->{'sheettype'} eq 'studentcalc') {
2603: $r->print("Loading previously calculated assessment sheets ...\n");
2604: $r->rflush();
2605: &cachedssheets($asheetdata->{'uname'},$asheetdata->{'udom'},
2606: $asheetdata->{'uhome'});
2607: }
2608: # Update sheet, load rows
2609: $r->print("Loaded sheet(s), updating rows ...<br>\n");
2610: $r->rflush();
2611: #
2612: &updatesheet($asheet,$asheetdata);
2613: $r->print("Updated rows, loading row data ...\n");
2614: $r->rflush();
2615: #
2616: &loadrows($asheet,$asheetdata,$r);
2617: $r->print("Loaded row data, calculating sheet ...<br>\n");
2618: $r->rflush();
2619: #
2620: my $calcoutput=&calcsheet($asheet);
2621: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
2622: # See if something to save
2623: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
2624: my $fname='';
2625: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
2626: $fname=~s/\W/\_/g;
2627: if ($fname eq 'default') { $fname='course_default'; }
2628: $fname.='_'.$asheetdata->{'sheettype'};
2629: &setfilename($asheet,$fname);
2630: $ENV{'form.ufn'}=$fname;
2631: $r->print('<p>Saving spreadsheet: '.
2632: &writesheet($asheet,$ENV{'form.makedefufn'}).'<p>');
2633: }
2634: }
2635: #
2636: #Write the modified worksheet
2637: $r->print('<b>Current sheet:</b> '.&getfilename($asheet).'<p>');
2638: &tmpwrite($asheet);
2639: if ($asheetdata->{'sheettype'} eq 'studentcalc') {
2640: $r->print('<br>Show rows with empty A column: ');
2641: } else {
2642: $r->print('<br>Show empty rows: ');
2643: }
2644: #
2645: $r->print(&hiddenfield('userselhidden','true').
2646: '<input type="checkbox" name="showall" onClick="submit()"');
2647: #
2648: if ($ENV{'form.showall'}) {
2649: $r->print(' checked');
2650: } else {
2651: unless ($ENV{'form.userselhidden'}) {
2652: unless
2653: ($ENV{'course.'.$ENV{'request.course.id'}.'.hideemptyrows'} eq 'yes') {
2654: $r->print(' checked');
2655: $ENV{'form.showall'}=1;
2656: }
2657: }
2658: }
2659: $r->print('>');
2660: #
2661: # CSV format checkbox (classcalc sheets only)
2662: if ($asheetdata->{'sheettype'} eq 'classcalc') {
2663: $r->print(' Output CSV format: <input type="checkbox" '.
2664: 'name="showcsv" onClick="submit()"');
2665: if ($ENV{'form.showcsv'}) { $r->print(' checked'); }
2666: $r->print('>');
2667: }
2668: #
2669: # Buttons to insert rows
2670: $r->print(' Student Status: '.
2671: &Apache::lonhtmlcommon::StatusOptions
2672: ($ENV{'form.Status'},'sheet'));
2673: $r->print(<<ENDINSERTBUTTONS);
2674: <br>
2675: <input type='button' onClick='insertrow("top");'
2676: value='Insert Row Top'>
2677: <input type='button' onClick='insertrow("bottom");'
2678: value='Insert Row Bottom'><br>
2679: ENDINSERTBUTTONS
2680: # Print out sheet
2681: &outsheet($r,$asheet,$asheetdata);
2682: $r->print('</form></body></html>');
2683: # Done
2684: return OK;
2685: }
2686:
2687: 1;
2688: __END__
2689:
2690:
2691:
2692:
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