1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.258 2016/08/09 23:43:45 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::caparesponse;
30: use strict;
31: use capa;
32: use Safe::Hole;
33: use Apache::lonmaxima();
34: use Apache::lonlocal;
35: use Apache::lonnet;
36: use Apache::lonmsg();
37: use Apache::response();
38: use Storable qw(dclone);
39: use Apache::lonnet;
40:
41: BEGIN {
42: &Apache::lonxml::register('Apache::caparesponse',('numericalresponse','stringresponse','formularesponse'));
43: }
44:
45: my %answer;
46: my @answers;
47: my @alphabet=('A'..'Z');
48:
49: sub get_answer { return %answer; };
50: sub push_answer{ push(@answers,dclone(\%answer)); undef(%answer) }
51: sub pop_answer { %answer = %{pop(@answers)}; };
52:
53: my $cur_name;
54: my $tag_internal_answer_name = 'INTERNAL';
55:
56: sub start_answer {
57: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
58: my $result;
59: $cur_name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
60: if ($cur_name =~ /^\s*$/) { $cur_name = $Apache::lonxml::curdepth; }
61: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
62: if (!defined($type) && $tagstack->[-2] eq 'answergroup') {
63: $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
64: }
65: if (!defined($type)) { $type = 'ordered' };
66: $answer{$cur_name}= { 'type' => $type,
67: 'answers' => [] };
68: if ($target eq 'edit') {
69: $result.=&Apache::edit::tag_start($target,$token);
70: $result.=&Apache::edit::text_arg('Name:','name',$token);
71: $result.=&Apache::edit::select_arg('Type:','type',
72: [['ordered', 'Ordered' ],
73: ['unordered','Unordered'],],
74: $token);
75: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
76: } elsif ($target eq 'modified') {
77: my $constructtag = &Apache::edit::get_new_args($token,$parstack,
78: $safeeval,'name',
79: 'type');
80: if ($constructtag) {
81: $result = &Apache::edit::rebuild_tag($token);
82: $result.= &Apache::edit::handle_insert();
83: }
84: }
85: return $result;
86: }
87:
88: sub end_answer {
89: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
90: my $result;
91: if ($target eq 'edit') {
92: $result .= &Apache::edit::tag_end();
93: }
94:
95: undef($cur_name);
96: return $result;
97: }
98:
99: sub insert_answer {
100: return '
101: <answer>
102: <value></value>
103: </answer>';
104: }
105:
106: sub start_answergroup {
107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
108: my $result;
109: if ($target eq 'edit') {
110: $result.=&Apache::edit::tag_start($target,$token);
111: $result.=&Apache::edit::select_arg('Type:','type',
112: [['ordered', 'Ordered' ],
113: ['unordered','Unordered'],],
114: $token);
115: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
116: } elsif ($target eq 'modified') {
117: my $constructtag = &Apache::edit::get_new_args($token,$parstack,
118: $safeeval,'name',
119: 'type');
120: if ($constructtag) {
121: $result = &Apache::edit::rebuild_tag($token);
122: $result.= &Apache::edit::handle_insert();
123: }
124: }
125: return $result;
126: }
127:
128: sub end_answergroup {
129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
130: my $result;
131: if ($target eq 'web') {
132: if ( &Apache::response::show_answer() ) {
133: my $partid = $Apache::inputtags::part;
134: my $id = $Apache::inputtags::response[-1];
135: &set_answertext($Apache::lonhomework::history{"resource.$partid.$id.answername"},
136: $target,$token,$tagstack,$parstack,$parser,
137: $safeeval,-2);
138: }
139: } elsif ($target eq 'edit') {
140: $result .= &Apache::edit::tag_end();
141: }
142: return $result;
143: }
144:
145: sub insert_answergroup {
146: return '
147: <answergroup>
148: <answer>
149: <value></value>
150: </answer>
151: </answergroup>';
152: }
153:
154: sub start_value {
155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
156: my $result;
157: if ( $target eq 'web' || $target eq 'tex' ||
158: $target eq 'grade' || $target eq 'webgrade' ||
159: $target eq 'answer' || $target eq 'analyze' ) {
160: my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style);
161: $bodytext = &Apache::run::evaluate($bodytext,$safeeval,
162: $$parstack[-1]);
163:
164: push(@{ $answer{$cur_name}{'answers'} },[$bodytext]);
165:
166: } elsif ($target eq 'edit') {
167: $result.=&Apache::edit::tag_start($target,$token);
168: my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style);
169: $result.=&Apache::edit::editline($token->[1],$bodytext,undef,40).
170: &Apache::edit::end_row();
171: } elsif ($target eq 'modified') {
172: $result=$token->[4].&Apache::edit::modifiedfield('/value',$parser);
173: }
174: return $result;
175: }
176:
177: sub end_value {
178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
179: my $result;
180: if ($target eq 'edit') {
181: $result = &Apache::edit::end_table();
182: }
183: return $result;
184: }
185:
186: sub insert_value {
187: return '
188: <value></value>';
189: }
190:
191: sub start_vector {
192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
193: my $result;
194: if ( $target eq 'web' || $target eq 'tex' ||
195: $target eq 'grade' || $target eq 'webgrade' ||
196: $target eq 'answer' || $target eq 'analyze' ) {
197: my $bodytext = &Apache::lonxml::get_all_text("/vector",$parser,$style);
198: my @values = &Apache::run::run($bodytext,$safeeval,$$parstack[-1]);
199: if (@values == 1) {
200: @values = split(',',$values[0]);
201: }
202: push(@{ $answer{$cur_name}{'answers'} },\@values);
203: } elsif ($target eq 'edit') {
204: $result.=&Apache::edit::tag_start($target,$token);
205: my $bodytext = &Apache::lonxml::get_all_text("/vector",$parser,$style);
206: $result.=&Apache::edit::editline($token->[1],$bodytext,undef,40).
207: &Apache::edit::end_row();
208: } elsif ($target eq 'modified') {
209: $result=$token->[4].&Apache::edit::modifiedfield('/vector',$parser);
210: }
211: return $result;
212: }
213:
214: sub end_vector {
215: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
216: my $result;
217: if ($target eq 'edit') {
218: $result = &Apache::edit::end_table();
219: }
220: return $result;
221: }
222:
223: sub insert_vector {
224: return '
225: <value></value>';
226: }
227:
228: sub start_array {
229: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
230: my $result;
231: if ( $target eq 'web' || $target eq 'tex' ||
232: $target eq 'grade' || $target eq 'webgrade' ||
233: $target eq 'answer' || $target eq 'analyze' ) {
234: my $bodytext = &Apache::lonxml::get_all_text("/array",$parser,$style);
235: my @values = &Apache::run::evaluate($bodytext,$safeeval,
236: $$parstack[-1]);
237: push(@{ $answer{$cur_name}{'answers'} },@values);
238: }
239: return $result;
240: }
241:
242: sub end_array {
243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
244: my $result;
245: return $result;
246: }
247:
248: sub start_unit {
249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
250: my $result;
251: return $result;
252: }
253:
254: sub end_unit {
255: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
256: my $result;
257: return $result;
258: }
259:
260: sub start_numericalresponse {
261: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
262: &Apache::lonxml::register('Apache::caparesponse',
263: ('answer','answergroup','value','array','unit',
264: 'vector'));
265: push(@Apache::lonxml::namespace,'caparesponse');
266: my $id = &Apache::response::start_response($parstack,$safeeval);
267: my $result;
268: undef(%answer);
269: undef(%{$safeeval->varglob('LONCAPA::CAPAresponse_args')});
270: if ($target eq 'edit') {
271: $result.=&Apache::edit::tag_start($target,$token);
272: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
273: if ($token->[1] eq 'numericalresponse') {
274: $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
275: $token).
276: &Apache::loncommon::help_open_topic('numerical_wrong_answers');
277: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
278: &Apache::loncommon::help_open_topic('Physical_Units');
279: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
280: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
281: } elsif ($token->[1] eq 'formularesponse') {
282: $result.=&Apache::edit::text_arg('Sample Points:','samples',
283: $token,40).
284: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
285: }
286: $result.=&Apache::edit::text_arg('Pre-Processor Subroutine:','preprocess',
287: $token,10);
288: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
289: } elsif ($target eq 'modified') {
290: my $constructtag;
291: if ($token->[1] eq 'numericalresponse') {
292: $constructtag=&Apache::edit::get_new_args($token,$parstack,
293: $safeeval,'answer',
294: 'incorrect','unit',
295: 'format','preprocess');
296: } elsif ($token->[1] eq 'formularesponse') {
297: $constructtag=&Apache::edit::get_new_args($token,$parstack,
298: $safeeval,'answer',
299: 'samples','preprocess');
300: }
301: if ($constructtag) {
302: $result = &Apache::edit::rebuild_tag($token);
303: $result.=&Apache::edit::handle_insert();
304: }
305: } elsif ($target eq 'meta') {
306: $result=&Apache::response::meta_package_write('numericalresponse');
307: } elsif ($target eq 'answer' || $target eq 'grade') {
308: &Apache::response::reset_params();
309: } elsif ($target eq 'web') {
310: my $partid = $Apache::inputtags::part;
311: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
312: &Apache::lonxml::debug("Got unit $hideunit for $partid $id");
313: #no way to enter units, with radio buttons
314: if ((lc($hideunit) eq "yes") && ($Apache::lonhomework::type ne 'exam')) {
315: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
316: $safeeval);
317: if ($unit =~ /\S/) { $result.=" (in $unit) "; }
318: }
319: if ( &Apache::response::show_answer() ) {
320: &set_answertext($tag_internal_answer_name,$target,$token,$tagstack,
321: $parstack,$parser,$safeeval,-1);
322: }
323: }
324: return $result;
325: }
326:
327: sub set_answertext {
328: my ($name,$target,$token,$tagstack,$parstack,$parser,$safeeval,
329: $response_level) = @_;
330: &add_in_tag_answer($parstack,$safeeval,$response_level);
331:
332: if ($name eq '' || !ref($answer{$name})) {
333: if (ref($answer{$tag_internal_answer_name})) {
334: $name = $tag_internal_answer_name;
335: } else {
336: $name = (sort(keys(%answer)))[0];
337: }
338: }
339: return if ($name eq '' || !ref($answer{$name}));
340:
341: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
342: $safeeval,$response_level);
343: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval,
344: $response_level);
345:
346: &Apache::lonxml::debug("answer looks to be $name");
347: my @answertxt;
348: for (my $i=0; $i < scalar(@{$answer{$name}{'answers'}}); $i++) {
349: my $answertxt;
350: my $answer=$answer{$name}{'answers'}[$i];
351: foreach my $element (@$answer) {
352: if ( scalar(@$tagstack)
353: && $tagstack->[$response_level] ne 'numericalresponse') {
354: $answertxt.=$element.',';
355: } else {
356: my $format;
357: if ($#formats > 0) {
358: $format=$formats[$i];
359: } else {
360: $format=$formats[0];
361: }
362: if ($unit=~/\$/) { $format="\$".$format; $unit=~s/\$//g; }
363: if ($unit=~/\,/) { $format="\,".$format; $unit=~s/\,//g; }
364: my $formatted=&format_number($element,$format,$target,
365: $safeeval);
366: $answertxt.=' '.$formatted.',';
367: }
368:
369: }
370: chop($answertxt);
371: if ($target eq 'web') {
372: $answertxt.=" $unit ";
373: }
374:
375: push(@answertxt,$answertxt)
376: }
377:
378: my $id = $Apache::inputtags::response[-1];
379: $Apache::inputtags::answertxt{$id}=\@answertxt;
380: }
381:
382: sub setup_capa_args {
383: my ($safeeval,$parstack,$args,$response) = @_;
384: my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
385: undef(%{ $args_ref });
386:
387: foreach my $arg (@{$args}) {
388: $$args_ref{$arg}=
389: &Apache::lonxml::get_param($arg,$parstack,$safeeval);
390: }
391: foreach my $key (keys(%Apache::inputtags::params)) {
392: $$args_ref{$key}=$Apache::inputtags::params{$key};
393: }
394: &setup_capa_response($args_ref,$response);
395: return $args_ref;
396: }
397:
398: sub setup_capa_response {
399: my ($args_ref,$response) = @_;
400:
401: if (ref($response)) {
402: $$args_ref{'response'}=dclone($response);
403: } else {
404: $$args_ref{'response'}=dclone([$response]);
405: }
406: }
407:
408: sub check_submission {
409: my ($response,$partid,$id,$tag,$parstack,$safeeval,$ignore_sig)=@_;
410: my @args = ('type','tol','sig','format','unit','calc','samples','preprocess');
411: my $args_ref = &setup_capa_args($safeeval,$parstack,\@args,$response);
412:
413: my $hideunit=
414: &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
415: #no way to enter units, with radio buttons
416: if ($Apache::lonhomework::type eq 'exam' ||
417: lc($hideunit) eq "yes") {
418: delete($$args_ref{'unit'});
419: }
420: #sig fig don't make much sense either
421: if (($Apache::lonhomework::type eq 'exam' ||
422: &Apache::response::submitted('scantron') ||
423: $ignore_sig) &&
424: $tag eq 'numericalresponse') {
425: delete($$args_ref{'sig'});
426: }
427:
428: if ($tag eq 'formularesponse') {
429: if ($$args_ref{'samples'}) {
430: $$args_ref{'type'}='fml';
431: } else {
432: $$args_ref{'type'}='math';
433: }
434: } elsif ($tag eq 'numericalresponse') {
435: $$args_ref{'type'}='float';
436: } elsif ($tag eq 'stringresponse') {
437: if ($$args_ref{'type'} eq '') {
438: $$args_ref{'type'} = 'ci';
439: }
440: }
441:
442: &add_in_tag_answer($parstack,$safeeval);
443:
444: if (!%answer) {
445: &Apache::lonxml::error("No answers are defined");
446: }
447:
448: my (@final_awards,@final_msgs,@names);
449: foreach my $name (keys(%answer)) {
450: &Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} }));
451:
452: ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name});
453: &setup_capa_response($args_ref,$response);
454: use Time::HiRes;
455: my $t0 = [Time::HiRes::gettimeofday()];
456: my ($result,@msgs) =
457: &Apache::run::run("&caparesponse_check_list()",$safeeval);
458: &Apache::lonxml::debug("checking $name $result with $response took ".&Time::HiRes::tv_interval($t0));
459: &Apache::lonxml::debug('msgs are '.join(':',@msgs));
460: my ($awards)=split(/:/,$result);
461: my @awards= split(/,/,$awards);
462: my ($ad, $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
463: push(@final_awards,$ad);
464: push(@final_msgs,$msg);
465: push(@names,$name);
466: }
467: my ($ad, $msg, $name) = &Apache::inputtags::finalizeawards(\@final_awards,
468: \@final_msgs,
469: \@names,1);
470: &Apache::lonxml::debug(" name of picked award is $name from ".join(', ',@names));
471: return($ad,$msg, $name);
472: }
473:
474: sub stringresponse_gradechange {
475: my ($part,$id,$previous,$caller,$response,$ad,$type) = @_;
476: return unless (ref($previous) eq 'HASH');
477: my ($prevarray,$prevaward);
478: my %typenames = (
479: cs => 'Case sensitive',
480: ci => 'Case insensitive',
481: );
482: if ($caller eq 'cs') {
483: return unless (ref($previous->{'version'}) eq 'ARRAY');
484: $prevarray = $previous->{'version'};
485: $prevaward = $previous->{'award'};
486: } elsif ($caller eq 'ci') {
487: return unless (ref($previous->{'versionci'}) eq 'ARRAY');
488: $prevarray = $previous->{'versionci'};
489: $prevaward = $previous->{'awardci'};
490: } else {
491: return;
492: }
493: my $count=0;
494: my %count_lookup;
495: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
496: my $prefix = $i.":resource.$part";
497: next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
498: $count++;
499: $count_lookup{$i} = $count;
500: }
501: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
502: my %coursedesc = &Apache::lonnet::coursedescription($courseid);
503: my $cdom = $coursedesc{'domain'};
504: my $versions = ' (submissions: '.join(', ',map {$count_lookup{$_} } @{$prevarray}).')';
505: my $warning = "String Response ($typenames{$type}) grading discrepancy: award for response of $response changed from $prevaward".$versions." to $ad; user: $name:$domain in course: $courseid for part: $part response: $id for symb: $symb";
506: &Apache::lonnet::logthis($warning);
507: my $origmail = $Apache::lonnet::perlvar{'lonAdmEMail'};
508: my $recipients = &Apache::loncommon::build_recipient_list(undef,'errormail',
509: $cdom,$origmail);
510: if ($recipients ne '') {
511: &Apache::lonmsg::sendemail($recipients,'Stringresponse Grading Discrepancy',$warning);
512: }
513: return;
514: }
515:
516: sub add_in_tag_answer {
517: my ($parstack,$safeeval,$response_level) = @_;
518: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval,
519: $response_level);
520: &Apache::lonxml::debug('answer is'.join(':',@answer));
521: if (@answer && $answer[0] =~ /\S/) {
522: $answer{$tag_internal_answer_name}= {'type' => 'ordered',
523: 'answers' => [\@answer] };
524: }
525: }
526:
527: sub capa_formula_fix {
528: my ($expression)=@_;
529: return &Apache::response::implicit_multiplication($expression);
530: }
531:
532: sub end_numericalresponse {
533: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
534:
535: &Apache::lonxml::deregister('Apache::caparesponse',
536: ('answer','answergroup','value','array','unit',
537: 'vector'));
538: pop(@Apache::lonxml::namespace);
539:
540: my $increment=1;
541: my $result = '';
542: if (!$Apache::lonxml::default_homework_loaded) {
543: &Apache::lonxml::default_homework_load($safeeval);
544: }
545: my $partid = $Apache::inputtags::part;
546: my $id = $Apache::inputtags::response[-1];
547: my $tag;
548: my $safehole = new Safe::Hole;
549: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
550:
551: if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
552: if ( $target eq 'grade' && &Apache::response::submitted() ) {
553: &Apache::response::setup_params($tag,$safeeval);
554: if ($Apache::lonhomework::type eq 'exam' &&
555: (($tag eq 'formularesponse') || ($tag eq 'mathresponse'))) {
556: $increment=&Apache::response::scored_response($partid,$id);
557: } else {
558: my $response = &Apache::response::getresponse();
559: if ( $response =~ /[^\s]/) {
560: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
561: &Apache::lonxml::debug("submitted a $response<br>\n");
562: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
563:
564: if ( &Apache::response::submitted('scantron')) {
565: &add_in_tag_answer($parstack,$safeeval);
566: my ($values,$display)=&make_numerical_bubbles($partid,$id,
567: $target,$parstack,$safeeval);
568: $response=$values->[$response];
569: }
570: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
571: my ($ad,$msg,$name)=&check_submission($response,$partid,$id,
572: $tag,$parstack,
573: $safeeval);
574:
575: &Apache::lonxml::debug('ad is'.$ad);
576: if ($ad eq 'SIG_FAIL') {
577: my ($sig_u,$sig_l)=
578: &get_sigrange($Apache::inputtags::params{'sig'});
579: $msg=join(':',$msg,$sig_l,$sig_u);
580: &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
581: $Apache::inputtags::params{'sig'});
582: }
583: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
584: if (($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
585: $ad eq 'EXACT_ANS')) {
586: if ($Apache::lonhomework::type eq 'survey') {
587: $ad='SUBMITTED';
588: } elsif ($Apache::lonhomework::type eq 'surveycred') {
589: $ad='SUBMITTED_CREDIT';
590: } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
591: $ad='ANONYMOUS';
592: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
593: $ad='ANONYMOUS_CREDIT';
594: }
595: }
596: &Apache::response::handle_previous(\%previous,$ad);
597: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
598: $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
599: $Apache::lonhomework::results{"resource.$partid.$id.answername"}=$name;
600: $result='';
601: }
602: }
603: } elsif ($target eq 'web' || $target eq 'tex') {
604: &check_for_answer_errors($parstack,$safeeval);
605: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
606: my $status = $Apache::inputtags::status['-1'];
607: if ($Apache::lonhomework::type eq 'exam') {
608: # FIXME support multi dimensional numerical problems
609: # in exam bubbles
610: my ($bubble_values,$bubble_display)=
611: &make_numerical_bubbles($partid,$id,$target,$parstack,
612: $safeeval);
613: my $number_of_bubbles = scalar(@{ $bubble_values });
614: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
615: $safeeval);
616: if ($target eq 'web') {
617: if ($tag eq 'numericalresponse') {
618: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
619: $result.= '<table border="1"><tr>';
620: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
621: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
622: my $checked='';
623: if ($previous eq $bubble_values->[$ind]) {
624: $checked=" checked='on' ";
625: }
626: $result.='<td><input type="radio" name="HWVAL_'.$id.
627: '" value="'.$bubble_values->[$ind].'" '.$checked
628: .' /><b>'.$alphabet[$ind].'</b>: '.
629: $bubble_display->[$ind].'</td>';
630: }
631: $result.='</tr></table>';
632: }
633: } elsif ($target eq 'tex') {
634: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
635: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
636: }
637: if ($tag eq 'numericalresponse') {
638: $result .= &make_horizontal_latex_bubbles($bubble_values, $bubble_display,
639: '$\bigcirc$');
640: } else {
641: $increment = &Apache::response::repetition();
642: }
643: }
644: }
645:
646: &Apache::response::setup_prior_tries_hash(\&format_prior_response_numerical);
647: } elsif ($target eq 'edit') {
648: $result.='</td></tr>'.&Apache::edit::end_table;
649: } elsif ($target eq 'answer' || $target eq 'analyze') {
650: my $part_id="$partid.$id";
651: if ($target eq 'analyze') {
652: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
653: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
654: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
655: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
656: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
657: &Apache::response::check_if_computed($token,$parstack,
658: $safeeval,'answer');
659: }
660: if (scalar(@$tagstack)) {
661: &Apache::response::setup_params($tag,$safeeval);
662: }
663: &add_in_tag_answer($parstack,$safeeval);
664: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
665:
666: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
667:
668: if ($target eq 'answer') {
669: $result.=&Apache::response::answer_header($tag,undef,
670: scalar(keys(%answer)));
671: if ($tag eq 'numericalresponse'
672: && $Apache::lonhomework::type eq 'exam') {
673: my ($bubble_values,undef,$correct) = &make_numerical_bubbles($partid,
674: $id,$target,$parstack,$safeeval);
675: $result.=&Apache::response::answer_part($tag,$correct);
676: }
677: }
678: foreach my $name (sort(keys(%answer))) {
679: my @answers = @{ $answer{$name}{'answers'} };
680: if ($target eq 'analyze') {
681: foreach my $info ('answer','ans_high','ans_low','format') {
682: $Apache::lonhomework::analyze{"$part_id.$info"}{$name}=[];
683: }
684: }
685: my ($sigline,$tolline);
686: if ($name ne $tag_internal_answer_name
687: || scalar(keys(%answer)) > 1) {
688: $result.=&Apache::response::answer_part($tag,$name);
689: }
690: for(my $i=0;$i<=$#answers;$i++) {
691: my $ans=$answers[$i];
692: my $fmt=$formats[0];
693: if (@formats && $#formats) {$fmt=$formats[$i];}
694: my ($sighigh,$siglow);
695: if ($Apache::inputtags::params{'sig'}) {
696: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
697: }
698: my @vector;
699: if (ref($ans)) {
700: @vector = @{ $ans };
701: } else {
702: @vector = ($ans);
703: }
704: my @all_answer_info;
705: foreach my $element (@vector) {
706: my ($high,$low);
707: if ($Apache::inputtags::params{'tol'}) {
708: ($high,$low)=&get_tolrange($element,$Apache::inputtags::params{'tol'});
709: }
710: if ($target eq 'answer') {
711: if ($fmt && $tag eq 'numericalresponse') {
712: $fmt=~s/e/E/g;
713: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
714: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
715: $element = &format_number($element,$fmt,$target,$safeeval);
716: #if ($high) {
717: # $high=&format_number($high,$fmt,$target,$safeeval);
718: # $low =&format_number($low,$fmt,$target,$safeeval);
719: #}
720: }
721: if ($high && $tag eq 'numericalresponse') {
722: $element.='; ['.$low.'; '.$high.']';
723: $tolline .= "[$low, $high]";
724: }
725: if (defined($sighigh) && $tag eq 'numericalresponse') {
726: if ($env{'form.answer_output_mode'} eq 'tex') {
727: $element.= "; Sig $siglow - $sighigh";
728: } else {
729: $element.= " Sig <i>$siglow - $sighigh</i>";
730: $sigline .= "[$siglow, $sighigh]";
731: }
732: }
733: push(@all_answer_info,$element);
734:
735: } elsif ($target eq 'analyze') {
736: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"}{$name}[$i] }, $element);
737: if ($high) {
738: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"}{$name}[$i] }, $high);
739: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"}{$name}[$i] }, $low);
740: }
741: if ($fmt) {
742: push (@{ $Apache::lonhomework::analyze{"$part_id.format"}{$name}[$i] }, $fmt);
743: }
744: }
745: }
746: if ($target eq 'answer') {
747: $result.= &Apache::response::answer_part($tag,join('; ',@all_answer_info));
748: }
749: }
750:
751: my @fmt_ans;
752: for(my $i=0;$i<=$#answers;$i++) {
753: my $ans=$answers[$i];
754: my $fmt=$formats[0];
755: if (@formats && $#formats) {$fmt=$formats[$i];}
756: foreach my $element (@$ans) {
757: if ($fmt && $tag eq 'numericalresponse') {
758: $fmt=~s/e/E/g;
759: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
760: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
761: $element = &format_number($element,$fmt,$target,
762: $safeeval);
763: if ($fmt=~/\$/ && $unit!~/\$/) { $element=~s/\$//; }
764: }
765: }
766: push(@fmt_ans,join(',',@$ans));
767: }
768: my $response=\@fmt_ans;
769:
770: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.
771: $id.'.turnoffunit');
772: if ($unit ne '' &&
773: ! ($Apache::lonhomework::type eq 'exam' ||
774: lc($hideunit) eq "yes") ) {
775: my $cleanunit=$unit;
776: $cleanunit=~s/\$\,//g;
777: foreach my $ans (@fmt_ans) {
778: $ans.=" $cleanunit";
779: }
780: }
781: my ($ad,$msg)=&check_submission($response,$partid,$id,$tag,
782: $parstack,$safeeval);
783: if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
784: my $error;
785: if ($tag eq 'formularesponse') {
786: $error=&mt("Computer's answer is incorrect ([_1]).",'"'.join(', ',@$response).'"');
787: } else {
788: # answer failed check if it is sig figs that is failing
789: my ($ad,$msg)=&check_submission($response,$partid,$id,
790: $tag,$parstack,
791: $safeeval,1);
792: $error=&mt("Computer's answer is incorrect ([_1]).",'"'.join(', ',@$response).'"').' ';
793: if ($ad eq 'UNIT_INVALID_STUDENT') {
794: $error.=&mt('Unable to interpret units. Computer reads units as "[_1]".',$msg).' '.
795: &mt('The unit attribute in the numericalresponse item needs to be a supported physical unit.');
796: } elsif ($sigline ne '') {
797: $error.=&mt('It is likely that the tolerance range [_1] or significant figures [_2] need to be adjusted.',$tolline,$sigline);
798: } else {
799: $error.=&mt('It is likely that the tolerance range [_1] needs to be adjusted.',$tolline);
800: }
801: }
802: if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
803: &Apache::lonxml::error($error);
804: } else {
805: &Apache::lonxml::warning($error);
806: }
807: }
808:
809: if (defined($unit) and ($unit ne '') and
810: $tag eq 'numericalresponse') {
811: if ($target eq 'answer') {
812: if ($env{'form.answer_output_mode'} eq 'tex') {
813: $result.=&Apache::response::answer_part($tag,
814: " Unit: $unit ");
815: } else {
816: $result.=&Apache::response::answer_part($tag,
817: "Unit: <b>$unit</b>");
818: }
819: } elsif ($target eq 'analyze') {
820: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
821: }
822: }
823: if ($tag eq 'formularesponse' && $target eq 'answer') {
824: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
825: $result.=&Apache::response::answer_part($tag,$samples);
826: }
827: $result.=&Apache::response::next_answer($tag,$name);
828: }
829: if ($target eq 'answer') {
830: $result.=&Apache::response::answer_footer($tag);
831: }
832: }
833: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
834: $target eq 'tex' || $target eq 'analyze') {
835: if (($tag eq 'formularesponse') && ($target eq 'analyze')) {
836: my $type = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.type');
837: if ($type eq 'exam') {
838: $increment = &Apache::response::repetition();
839: }
840: }
841: &Apache::lonxml::increment_counter($increment,"$partid.$id");
842: if ($target eq 'analyze') {
843: &Apache::lonhomework::set_bubble_lines();
844: }
845: }
846: &Apache::response::end_response();
847: return $result;
848: }
849:
850: sub format_prior_response_numerical {
851: my ($mode,$answer) = @_;
852: if (ref($answer)) {
853: my $result = '<table class="LC_prior_numerical"><tr>';
854: foreach my $element (@{ $answer }) {
855: $result.= '<td><span class="LC_prior_numerical">'.
856: &HTML::Entities::encode($element,'"<>&').'</span></td>';
857: }
858: $result.='</tr></table>';
859: return $result;
860: }
861: return '<span class="LC_prior_numerical">'.
862: &HTML::Entities::encode($answer,'"<>&').'</span>';
863:
864: }
865:
866: sub check_for_answer_errors {
867: my ($parstack,$safeeval) = @_;
868: &add_in_tag_answer($parstack,$safeeval);
869: my %counts;
870: foreach my $name (keys(%answer)) {
871: push(@{$counts{scalar(@{$answer{$name}{'answers'}})}},$name);
872: }
873: if (scalar(keys(%counts)) > 1) {
874: my $counts = join(' ',map {
875: my $count = $_;
876: &mt("Answers [_1] had [_2] components.",
877: '<tt>'.join(', ',@{$counts{$count}}).'</tt>',
878: $count);
879: } (sort(keys(%counts))));
880: &Apache::lonxml::error(&mt("All answers must have the same number of components. Varying numbers of answers were seen. ").$counts);
881: }
882: my $expected_number_of_inputs = (keys(%counts))[0];
883: if ( $expected_number_of_inputs > 0
884: && $expected_number_of_inputs != scalar(@Apache::inputtags::inputlist)) {
885: &Apache::lonxml::error(&mt("Expected [_1] input fields, but there were only [_2] seen.",
886: $expected_number_of_inputs,
887: scalar(@Apache::inputtags::inputlist)));
888: }
889: }
890:
891: sub get_table_sizes {
892: my ($number_of_bubbles,$rbubble_values)=@_;
893: my $scale=2; #mm for one digit
894: my $cell_width=0;
895: foreach my $member (@$rbubble_values) {
896: my $cell_width_real=0;
897: if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^\{(\+|-)?(\d+)}\$?/) {
898: $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
899: } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
900: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
901: } elsif ($member=~/(\d*)\.(\d*)/) {
902: $cell_width_real=(length($1)+length($2)+3)*$scale;
903: } else {
904: $cell_width_real=(length($member)+1)*$scale*0.9;
905: }
906: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
907: }
908: $cell_width+=8;
909: my $textwidth;
910: if ($env{'form.textwidth'} ne '') {
911: $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
912: $textwidth=$1.'.'.$2;
913: } else {
914: $env{'form.textwidth'}=~/(\d+)\.?(\d*)/;
915: $textwidth=$1.'.'.$2;
916: }
917: my $bubbles_per_line=int($textwidth/$cell_width);
918: if ($bubbles_per_line > $number_of_bubbles) {
919: $bubbles_per_line=$number_of_bubbles;
920: } elsif (($bubbles_per_line > $number_of_bubbles/2)
921: && ($number_of_bubbles % 2==0)) {
922: $bubbles_per_line=$number_of_bubbles/2;
923: }
924: if ($bubbles_per_line < 1) {
925: $bubbles_per_line=1;
926: }
927: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
928: my @table_range = ();
929: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
930: if ($number_of_bubbles % $bubbles_per_line) {
931: $number_of_tables++;
932: push @table_range,($number_of_bubbles % $bubbles_per_line);
933: }
934: $cell_width-=8;
935: $cell_width=$cell_width*3/4;
936: return ($cell_width,$number_of_tables,@table_range);
937: }
938:
939: sub format_number {
940: my ($number,$format,$target,$safeeval)=@_;
941: my $ans;
942: if ($format eq '') {
943: #What is the number? (integer,decimal,floating point)
944: if ($number=~/^(\d*\.?\d*)(E|e)[+\-]?(\d*)$/) {
945: $format = '3e';
946: } elsif ($number=~/^(\d*)\.(\d*)$/) {
947: $format = '4f';
948: } elsif ($number=~/^(\d*)$/) {
949: $format = 'd';
950: }
951: }
952: if (!$Apache::lonxml::default_homework_loaded) {
953: &Apache::lonxml::default_homework_load($safeeval);
954: }
955: $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
956: return $ans;
957: }
958:
959: sub make_numerical_bubbles {
960: my ($part,$id,$target,$parstack,$safeeval) =@_;
961:
962: if (!%answer) {
963: &Apache::lonxml::error(&mt("No answers defined for response [_1] in part [_2] to make bubbles for.",$id,$part));
964: return ([],[],undef);
965: }
966:
967: my $number_of_bubbles =
968: &Apache::response::get_response_param($part.'_'.$id,'numbubbles',8);
969:
970: #
971: # Fixes for BZ 6519 - number of bubbles <= 0 or non-integer.
972: #
973: $number_of_bubbles = int($number_of_bubbles + 0.5);
974: if ($number_of_bubbles <= 0) {
975: $number_of_bubbles = 8;
976: }
977:
978:
979: my ($format)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
980: my $name = (exists($answer{$tag_internal_answer_name})
981: ? $tag_internal_answer_name
982: : (sort(keys(%answer)))[0]);
983:
984: if ( scalar(@{$answer{$name}{'answers'}}) > 1) {
985: &Apache::lonxml::error("Only answers with 1 component are supported in exam mode");
986: }
987: if (scalar(@{$answer{$name}{'answers'}[0]}) > 1) {
988: &Apache::lonxml::error("Vector answers are unsupported in exam mode.");
989: }
990:
991: my $answer = $answer{$name}{'answers'}[0][0];
992: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,
993: $safeeval);
994: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
995:
996: my @bubble_values=();
997: my @alphabet=('A'..'Z');
998:
999: &Apache::lonxml::debug("answer is $answer incorrect is @incorrect");
1000: my @oldseed=&Math::Random::random_get_seed();
1001: if (@incorrect) {
1002: &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1 gt $number_of_bubbles));
1003: if (defined($incorrect[0]) &&
1004: scalar(@incorrect)+1 >= $number_of_bubbles) {
1005: &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1).":$number_of_bubbles");
1006: &Apache::response::setrandomnumber();
1007: my @rand_inc=&Math::Random::random_permutation(@incorrect);
1008: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
1009: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
1010: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": which are :".join(':',@bubble_values));
1011: &Math::Random::random_set_seed(@oldseed);
1012:
1013: my $correct;
1014: for(my $i=0; $i<=$#bubble_values;$i++) {
1015: if ($bubble_values[$i] eq $answer) {
1016: $correct = $alphabet[$i];
1017: last;
1018: }
1019: }
1020:
1021: if (defined($format) && $format ne '') {
1022: my @bubble_display;
1023: foreach my $value (@bubble_values) {
1024: push(@bubble_display,
1025: &format_number($value,$format,$target,$safeeval));
1026: }
1027: return (\@bubble_values,\@bubble_display,$correct);
1028: } else {
1029: return (\@bubble_values,\@bubble_values,$correct);
1030: }
1031: }
1032: if (defined($incorrect[0]) &&
1033: scalar(@incorrect)+1 < $number_of_bubbles) {
1034: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them (".join(',',@incorrect).").");
1035: }
1036: }
1037: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
1038: my @powers = (1..$number_of_bubbles);
1039: &Apache::response::setrandomnumber();
1040: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
1041: my $power = $powers[$ind];
1042: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
1043: my $factor = $factors[$ind];
1044: my @bubble_display;
1045: my $answerfactor=$answer;
1046: if ($answer==0) {
1047: $answerfactor=&Math::Random::random_uniform_integer(1,1,100)/
1048: &Math::Random::random_uniform_integer(1,1,10);
1049: }
1050: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
1051: $bubble_values[$ind] = $answerfactor*($factor**($power-$powers[$#powers-$ind]));
1052: $bubble_display[$ind] = &format_number($bubble_values[$ind],
1053: $format,$target,$safeeval);
1054: }
1055: my $correct = $alphabet[$number_of_bubbles-$power];
1056: if ($answer==0) {
1057: $correct='A';
1058: $bubble_values[0]=0;
1059: $bubble_display[0] = &format_number($bubble_values[0],
1060: $format,$target,$safeeval);
1061: }
1062: &Math::Random::random_set_seed(@oldseed);
1063: return (\@bubble_values,\@bubble_display,$correct);
1064: }
1065:
1066: ##
1067: # Produce LaTeX bubbles laid out horizontally given a set of bubble values:
1068: #
1069: # @param bubble_values - reference to an array of bubble 'values'
1070: # @param bubble_display - reference to the array of texts to display to the user
1071: # for each bubble_value (this is mostly for numerical response
1072: # when the displayed value may not be an exact
1073: # representation of the bubble value.
1074: # @param bubble_fragment- The LaTeX fragment that will be plugged in to make
1075: # the bubble itself. Note that the code will autonomously
1076: # label each bubble with a lable...and that it's perfectly
1077: # acceptable to use "" for the bubble_fragment.
1078: #
1079: # @return string - the LaTeX fragment that produces the bubbles.
1080: #
1081: sub make_horizontal_latex_bubbles {
1082: my ($bubble_values, $bubble_display, $bubble_fragment) = @_;
1083: my $result;
1084:
1085: my $number_of_bubbles = scalar(@{$bubble_values});
1086:
1087: # Get the number of rows and columns in each row of the bubble
1088: # table:
1089:
1090: my ($celllength, $number_of_tables, @table_range) =
1091: &get_table_sizes($number_of_bubbles, $bubble_display);
1092:
1093: my $j=0;
1094: my $cou=0;
1095: $result.='\vskip 2mm \noindent ';
1096: $result .= '\textbf{'.$Apache::lonxml::counter.'.} \vskip -3mm ';
1097:
1098: for (my $i=0;$i<$number_of_tables;$i++) {
1099: if ($i == 0) {
1100: $result .= '\vskip -1mm ';
1101: } else {
1102: $result .= '\vskip 1mm ';
1103: }
1104: $result.='\noindent \setlength{\tabcolsep}{2 mm}\hskip 2pc\begin{tabular}{';
1105: for (my $ind=0;$ind<$table_range[$j];$ind++) {
1106: $result.='p{4 mm}p{'.$celllength.' mm}';
1107: }
1108: $result.='}';
1109: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
1110: $result.='\hskip -4 mm {\small \textbf{ '.$alphabet[$ind].'}}'
1111: . $bubble_fragment
1112: . '& \hskip -3 mm {\small '.$bubble_display->[$ind].'} ';
1113: if ($ind != $cou+$table_range[$j]-1) {
1114: $result.=' & ';
1115: }
1116: }
1117: $cou += $table_range[$j];
1118: $j++;
1119: $result.='\\\\\end{tabular}\vskip 0 mm ';
1120: }
1121: return $result;
1122: }
1123:
1124: sub get_tolrange {
1125: my ($ans,$tol)=@_;
1126: my ($high,$low);
1127: if ($tol =~ /%$/) {
1128: chop($tol);
1129: my $change=$ans*($tol/100.0);
1130: $high=$ans+$change;
1131: $low=$ans-$change;
1132: } else {
1133: $high=$ans+$tol;
1134: $low=$ans-$tol;
1135: }
1136: return ($high,$low);
1137: }
1138:
1139: sub get_sigrange {
1140: my ($sig)=@_;
1141: #&Apache::lonxml::debug("Got a sig of :$sig:");
1142: my $courseid=$env{'request.course.id'};
1143: if ($env{'request.state'} ne 'construct'
1144: && lc($env{"course.$courseid.disablesigfigs"}) eq 'yes') {
1145: return (15,0);
1146: }
1147: my $sig_lbound;
1148: my $sig_ubound;
1149: if ($sig eq '') {
1150: $sig_lbound = 0; #SIG_LB_DEFAULT
1151: $sig_ubound =15; #SIG_UB_DEFAULT
1152: } else {
1153: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
1154: if (!defined($sig_lbound)) {
1155: $sig_lbound = 0; #SIG_LB_DEFAULT
1156: $sig_ubound =15; #SIG_UB_DEFAULT
1157: }
1158: if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
1159: }
1160: if (($sig_ubound<$sig_lbound) ||
1161: ($sig_lbound > 15) ||
1162: ($sig =~/(\+|-)/ ) ) {
1163: my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
1164: if ($env{'request.state'} eq 'construct') {
1165: $errormsg.=
1166: &Apache::loncommon::help_open_topic('Significant_Figures');
1167: }
1168: &Apache::lonxml::error($errormsg);
1169: }
1170: return ($sig_ubound,$sig_lbound);
1171: }
1172:
1173: sub format_prior_response_string {
1174: my ($mode,$answer) =@_;
1175: return '<span class="LC_prior_string">'.
1176: &HTML::Entities::encode($answer,'"<>&').'</span>';
1177: }
1178:
1179: sub start_stringresponse {
1180: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1181: my $result;
1182: my $id = &Apache::response::start_response($parstack,$safeeval);
1183: undef(%answer);
1184: if ($target eq 'meta') {
1185: $result=&Apache::response::meta_package_write('stringresponse');
1186: } elsif ($target eq 'edit') {
1187: $result.=&Apache::edit::tag_start($target,$token);
1188: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
1189: $result.=&Apache::edit::select_arg('Type:','type',
1190: [['cs','Case Sensitive'],['ci','Case Insensitive'],
1191: ['mc','Case Insensitive, Any Order'],
1192: ['re','Regular Expression']],$token);
1193: $result.=&Apache::edit::text_arg('String to display for answer:',
1194: 'answerdisplay',$token);
1195: $result.=&Apache::edit::text_arg('Pre-Processor Subroutine:','preprocess',
1196: $token,10);
1197: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1198: } elsif ($target eq 'modified') {
1199: my $constructtag;
1200: $constructtag=&Apache::edit::get_new_args($token,$parstack,
1201: $safeeval,'answer',
1202: 'type','answerdisplay','preprocess');
1203: if ($constructtag) {
1204: $result = &Apache::edit::rebuild_tag($token);
1205: $result.=&Apache::edit::handle_insert();
1206: }
1207: } elsif ($target eq 'web') {
1208: if ( &Apache::response::show_answer() ) {
1209: my $answer=
1210: &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
1211: if (!defined $answer || $answer eq '') {
1212: $answer=
1213: &Apache::lonxml::get_param('answer',$parstack,$safeeval);
1214: }
1215: $Apache::inputtags::answertxt{$id}=[$answer];
1216: }
1217: } elsif ($target eq 'answer' || $target eq 'grade') {
1218: &Apache::response::reset_params();
1219: }
1220: return $result;
1221: }
1222:
1223: sub end_stringresponse {
1224: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1225:
1226: my $result = '';
1227: my $part=$Apache::inputtags::part;
1228: my $id=$Apache::inputtags::response[-1];
1229: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
1230: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
1231: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
1232: &Apache::lonxml::debug("current $answer ".$token->[2]);
1233: if (!$Apache::lonxml::default_homework_loaded) {
1234: &Apache::lonxml::default_homework_load($safeeval);
1235: }
1236: if ( $target eq 'grade' && &Apache::response::submitted() ) {
1237: &Apache::response::setup_params('stringresponse',$safeeval);
1238: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
1239: if ($Apache::lonhomework::type eq 'exam' ||
1240: &Apache::response::submitted('scantron')) {
1241: &Apache::response::scored_response($part,$id);
1242:
1243: } else {
1244: my $response = &Apache::response::getresponse();
1245: if ( $response =~ /[^\s]/) {
1246: my %previous = &Apache::response::check_for_previous($response,
1247: $part,$id,
1248: undef,$type);
1249: &Apache::lonxml::debug("submitted a $response<br>\n");
1250: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
1251: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
1252: $response;
1253: my ($ad,$msg);
1254: if ($type eq 're' ) {
1255: # if the RE wasn't in a var it likely got munged,
1256: # thus grab it from the var directly
1257: # my $testans=$token->[2]->{'answer'};
1258: # if ($testans !~ m/^\s*\$/) {
1259: # $answer=$token->[2]->{'answer'};
1260: # }
1261: ${$safeeval->varglob('LONCAPA::response')}=$response;
1262: my $preprocess=&Apache::lonxml::get_param('preprocess',$parstack,$safeeval);
1263: $preprocess=~s/^\&//;
1264: if (defined($preprocess)) {
1265: &Apache::run::run('$LONCAPA::response=&'.$preprocess.'($LONCAPA::response);',$safeeval);
1266: }
1267: $result = &Apache::run::run('if ($LONCAPA::response=~m'.$answer.') { return 1; } else { return 0; }',$safeeval);
1268: &Apache::lonxml::debug("current $response");
1269: &Apache::lonxml::debug("current $answer");
1270: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
1271: } else {
1272: my @args = ('type','preprocess');
1273: my $args_ref = &setup_capa_args($safeeval,$parstack,
1274: \@args,$response);
1275: if ($$args_ref{'type'} eq '') {
1276: $$args_ref{'type'} = 'ci';
1277: }
1278: &add_in_tag_answer($parstack,$safeeval);
1279: my (@final_awards,@final_msgs,@names,%ansstring);
1280: foreach my $name (keys(%answer)) {
1281: &Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} }));
1282: ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name});
1283: my ($result, @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
1284: if ($$args_ref{'type'} =~ /^c[si]$/) {
1285: $ansstring{$name} = pop(@msgs);
1286: my $control_chars_removed = pop(@msgs);
1287: my $error = pop(@msgs);
1288: if (($error ne '') ||
1289: ($control_chars_removed)) {
1290: my ($symb,$courseid,$sdomain,$sname) =
1291: &Apache::lonnet::whichuser();
1292: if ($control_chars_removed) {
1293: my $showresponse = $response;
1294: if ($response =~ /[\000-\037]/) {
1295: $response =~ s/[\000-\037]//g;
1296: }
1297: if ($showresponse =~ /[\r\n\f]/) {
1298: my @lines = split(/[\r\n\f]+/,$showresponse);
1299: $showresponse = join('\\n',@lines);
1300: }
1301: &Apache::lonnet::logthis("Stringresponse grading: control characters stripped from submission ".$showresponse." for $sname:$sdomain in $courseid for part: $part response: $id and symb: $symb");
1302: $Apache::lonhomework::results{"resource.$part.$id.submission"} = $response;
1303: }
1304: if ($error ne '') {
1305: &Apache::lonnet::logthis("Stringresponse grading error: $error for $sname:$sdomain in $courseid for part: $part response: $id and symb: $symb");
1306: }
1307: }
1308: }
1309: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
1310: my ($awards)=split(/:/,$result);
1311: my (@awards) = split(/,/,$awards);
1312: ($ad,$msg) =
1313: &Apache::inputtags::finalizeawards(\@awards,\@msgs);
1314: push(@final_awards,$ad);
1315: push(@final_msgs,$msg);
1316: push(@names,$name);
1317: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
1318: }
1319: ($ad, $msg, my $name) =
1320: &Apache::inputtags::finalizeawards(\@final_awards,
1321: \@final_msgs,
1322: \@names,1);
1323: if (keys(%ansstring) > 0) {
1324: $Apache::lonhomework::results{"resource.$part.$id.answerstring"} = &Apache::lonnet::hash2str(%ansstring);
1325: }
1326: }
1327: if (($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
1328: $ad eq 'EXACT_ANS')) {
1329: if ($Apache::lonhomework::type eq 'survey') {
1330: $ad='SUBMITTED';
1331: } elsif ($Apache::lonhomework::type eq 'surveycred') {
1332: $ad='SUBMITTED_CREDIT';
1333: } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
1334: $ad='ANONYMOUS';
1335: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
1336: $ad='ANONYMOUS_CREDIT';
1337: }
1338: }
1339: unless (($env{'request.state'} eq 'construct') ||
1340: ($Apache::lonhomework::type eq 'randomizetry')) {
1341: if (($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' || $ad eq 'EXACT_ANS')) {
1342: if ($previous{'used'}) {
1343: if ($ad ne $previous{'award'}) {
1344: if (($previous{'award'} eq 'INCORRECT' ||
1345: $previous{'award'} eq 'APPROX_ANS' ||
1346: $previous{'award'} eq 'EXACT_ANS')) {
1347: &stringresponse_gradechange($part,$id,\%previous,
1348: 'cs',$response,$ad,$type);
1349: }
1350: }
1351: } elsif ($previous{'usedci'}) {
1352: if ($ad ne $previous{'awardci'}) {
1353: if (($previous{'awardci'} eq 'INCORRECT' ||
1354: $previous{'awardci'} eq 'APPROX_ANS' ||
1355: $previous{'awardci'} eq 'EXACT_ANS')) {
1356: &stringresponse_gradechange($part,$id,\%previous,
1357: 'ci',$response,$ad,$type);
1358: }
1359: }
1360: }
1361: }
1362: }
1363: &Apache::response::handle_previous(\%previous,$ad);
1364: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
1365: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
1366: }
1367: }
1368: } elsif ($target eq 'answer' || $target eq 'analyze') {
1369: &add_in_tag_answer($parstack,$safeeval);
1370: if ($target eq 'analyze') {
1371: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
1372: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
1373: &Apache::response::check_if_computed($token,$parstack,$safeeval,
1374: 'answer');
1375: }
1376: &Apache::response::setup_params('stringresponse',$safeeval);
1377: if ($target eq 'answer') {
1378: $result.=&Apache::response::answer_header('stringresponse');
1379: }
1380: foreach my $name (keys(%answer)) {
1381: my @answers = @{ $answer{$name}{'answers'} };
1382: for (my $i=0;$i<=$#answers;$i++) {
1383: my $answer_part = $answers[$i];
1384: foreach my $element (@{$answer_part}) {
1385: if ($target eq 'answer') {
1386: $result.=&Apache::response::answer_part('stringresponse',
1387: $element);
1388: if ($env{'form.grade_retrieveanswers'}) {
1389: $env{'form.grade_answers.resource.'.$part.'.'.$id} = $element;
1390: }
1391: } elsif ($target eq 'analyze') {
1392: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"}{$name}[$i] },
1393: $element);
1394: }
1395: }
1396: if ($target eq 'answer' && $type eq 're') {
1397: $result.=&Apache::response::answer_part('stringresponse',
1398: $answerdisplay);
1399: }
1400: }
1401: }
1402: my $string='Case Insensitive';
1403: if ($type eq 'mc') {
1404: $string='Multiple Choice';
1405: } elsif ($type eq 'cs') {
1406: $string='Case Sensitive';
1407: } elsif ($type eq 'ci') {
1408: $string='Case Insensitive';
1409: } elsif ($type eq 're') {
1410: $string='Regular Expression';
1411: }
1412: if ($target eq 'answer') {
1413: if ($env{'form.answer_output_mode'} eq 'tex') {
1414: $result.=&Apache::response::answer_part('stringresponse',
1415: "$string");
1416: } else {
1417: $result.=&Apache::response::answer_part('stringresponse',
1418: "<b>$string</b>");
1419: }
1420: } elsif ($target eq 'analyze') {
1421: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
1422: $type);
1423: }
1424: if ($target eq 'answer') {
1425: $result.=&Apache::response::answer_footer('stringresponse');
1426: }
1427: } elsif ($target eq 'edit') {
1428: $result.='</td></tr>'.&Apache::edit::end_table;
1429: } elsif ($target eq 'web' || $target eq 'tex') {
1430: &Apache::response::setup_prior_tries_hash(\&format_prior_response_string);
1431: }
1432: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1433: $target eq 'tex' || $target eq 'analyze') {
1434: my $repetition = &Apache::response::repetition();
1435: &Apache::lonxml::increment_counter($repetition,"$part.$id");
1436: if ($target eq 'analyze') {
1437: &Apache::lonhomework::set_bubble_lines();
1438: }
1439: }
1440: &Apache::response::end_response;
1441: return $result;
1442: }
1443:
1444: sub start_formularesponse {
1445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1446: my $result;
1447: if ($target eq 'meta') {
1448: &Apache::response::start_response($parstack,$safeeval);
1449: $result=&Apache::response::meta_package_write('formularesponse');
1450: &Apache::response::end_response();
1451: } else {
1452: $result.=&start_numericalresponse(@_);
1453: }
1454: return $result;
1455: }
1456:
1457: sub end_formularesponse {
1458: return end_numericalresponse(@_);
1459: }
1460:
1461: 1;
1462: __END__
1463:
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