1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.236.12.2 2011/02/26 01:45:02 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::response();
37: use Storable qw(dclone);
38:
39: BEGIN {
40: &Apache::lonxml::register('Apache::caparesponse',('numericalresponse','stringresponse','formularesponse'));
41: }
42:
43: my %answer;
44: my @answers;
45: sub get_answer { return %answer; };
46: sub push_answer{ push(@answers,dclone(\%answer)); undef(%answer) }
47: sub pop_answer { %answer = %{pop(@answers)}; };
48:
49: my $cur_name;
50: my $tag_internal_answer_name = 'INTERNAL';
51:
52: sub start_answer {
53: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
54: my $result;
55: $cur_name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
56: if ($cur_name =~ /^\s*$/) { $cur_name = $Apache::lonxml::curdepth; }
57: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
58: if (!defined($type) && $tagstack->[-2] eq 'answergroup') {
59: $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
60: }
61: if (!defined($type)) { $type = 'ordered' };
62: $answer{$cur_name}= { 'type' => $type,
63: 'answers' => [] };
64: if ($target eq 'edit') {
65: $result.=&Apache::edit::tag_start($target,$token);
66: $result.=&Apache::edit::text_arg('Name:','name',$token);
67: $result.=&Apache::edit::select_arg('Type:','type',
68: [['ordered', 'Ordered' ],
69: ['unordered','Unordered'],],
70: $token);
71: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
72: } elsif ($target eq 'modified') {
73: my $constructtag = &Apache::edit::get_new_args($token,$parstack,
74: $safeeval,'name',
75: 'type');
76: if ($constructtag) {
77: $result = &Apache::edit::rebuild_tag($token);
78: $result.= &Apache::edit::handle_insert();
79: }
80: }
81: return $result;
82: }
83:
84: sub end_answer {
85: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
86: my $result;
87: if ($target eq 'edit') {
88: $result .= &Apache::edit::tag_end();
89: }
90:
91: undef($cur_name);
92: return $result;
93: }
94:
95: sub insert_answer {
96: return '
97: <answer>
98: <value></value>
99: </answer>';
100: }
101:
102: sub start_answergroup {
103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
104: my $result;
105: if ($target eq 'edit') {
106: $result.=&Apache::edit::tag_start($target,$token);
107: $result.=&Apache::edit::select_arg('Type:','type',
108: [['ordered', 'Ordered' ],
109: ['unordered','Unordered'],],
110: $token);
111: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
112: } elsif ($target eq 'modified') {
113: my $constructtag = &Apache::edit::get_new_args($token,$parstack,
114: $safeeval,'name',
115: 'type');
116: if ($constructtag) {
117: $result = &Apache::edit::rebuild_tag($token);
118: $result.= &Apache::edit::handle_insert();
119: }
120: }
121: return $result;
122: }
123:
124: sub end_answergroup {
125: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
126: my $result;
127: if ($target eq 'web') {
128: if ( &Apache::response::show_answer() ) {
129: my $partid = $Apache::inputtags::part;
130: my $id = $Apache::inputtags::response[-1];
131: &set_answertext($Apache::lonhomework::history{"resource.$partid.$id.answername"},
132: $target,$token,$tagstack,$parstack,$parser,
133: $safeeval,-2);
134: }
135: } elsif ($target eq 'edit') {
136: $result .= &Apache::edit::tag_end();
137: }
138: return $result;
139: }
140:
141: sub insert_answergroup {
142: return '
143: <answergroup>
144: <answer>
145: <value></value>
146: </answer>
147: </answergroup>';
148: }
149:
150: sub start_value {
151: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
152: my $result;
153: if ( $target eq 'web' || $target eq 'tex' ||
154: $target eq 'grade' || $target eq 'webgrade' ||
155: $target eq 'answer' || $target eq 'analyze' ) {
156: my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style);
157: $bodytext = &Apache::run::evaluate($bodytext,$safeeval,
158: $$parstack[-1]);
159:
160: push(@{ $answer{$cur_name}{'answers'} },[$bodytext]);
161:
162: } elsif ($target eq 'edit') {
163: $result.=&Apache::edit::tag_start($target,$token);
164: my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style);
165: $result.=&Apache::edit::editline($token->[1],$bodytext,undef,40).
166: &Apache::edit::end_row();
167: } elsif ($target eq 'modified') {
168: $result=$token->[4].&Apache::edit::modifiedfield('/value',$parser);
169: }
170: return $result;
171: }
172:
173: sub end_value {
174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
175: my $result;
176: if ($target eq 'edit') {
177: $result = &Apache::edit::end_table();
178: }
179: return $result;
180: }
181:
182: sub insert_value {
183: return '
184: <value></value>';
185: }
186:
187: sub start_vector {
188: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
189: my $result;
190: if ( $target eq 'web' || $target eq 'tex' ||
191: $target eq 'grade' || $target eq 'webgrade' ||
192: $target eq 'answer' || $target eq 'analyze' ) {
193: my $bodytext = &Apache::lonxml::get_all_text("/vector",$parser,$style);
194: my @values = &Apache::run::run($bodytext,$safeeval,$$parstack[-1]);
195: if (@values == 1) {
196: @values = split(',',$values[0]);
197: }
198: push(@{ $answer{$cur_name}{'answers'} },\@values);
199: } elsif ($target eq 'edit') {
200: $result.=&Apache::edit::tag_start($target,$token);
201: my $bodytext = &Apache::lonxml::get_all_text("/vector",$parser,$style);
202: $result.=&Apache::edit::editline($token->[1],$bodytext,undef,40).
203: &Apache::edit::end_row();
204: } elsif ($target eq 'modified') {
205: $result=$token->[4].&Apache::edit::modifiedfield('/vector',$parser);
206: }
207: return $result;
208: }
209:
210: sub end_vector {
211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
212: my $result;
213: if ($target eq 'edit') {
214: $result = &Apache::edit::end_table();
215: }
216: return $result;
217: }
218:
219: sub insert_vector {
220: return '
221: <value></value>';
222: }
223:
224: sub start_array {
225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
226: my $result;
227: if ( $target eq 'web' || $target eq 'tex' ||
228: $target eq 'grade' || $target eq 'webgrade' ||
229: $target eq 'answer' || $target eq 'analyze' ) {
230: my $bodytext = &Apache::lonxml::get_all_text("/array",$parser,$style);
231: my @values = &Apache::run::evaluate($bodytext,$safeeval,
232: $$parstack[-1]);
233: push(@{ $answer{$cur_name}{'answers'} },@values);
234: }
235: return $result;
236: }
237:
238: sub end_array {
239: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
240: my $result;
241: return $result;
242: }
243:
244: sub start_unit {
245: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
246: my $result;
247: return $result;
248: }
249:
250: sub end_unit {
251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
252: my $result;
253: return $result;
254: }
255:
256: sub start_numericalresponse {
257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
258: &Apache::lonxml::register('Apache::caparesponse',
259: ('answer','answergroup','value','array','unit',
260: 'vector'));
261: push(@Apache::lonxml::namespace,'caparesponse');
262: my $id = &Apache::response::start_response($parstack,$safeeval);
263: my $result;
264: undef(%answer);
265: undef(%{$safeeval->varglob('LONCAPA::CAPAresponse_args')});
266: if ($target eq 'edit') {
267: $result.=&Apache::edit::tag_start($target,$token);
268: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
269: if ($token->[1] eq 'numericalresponse') {
270: $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
271: $token).
272: &Apache::loncommon::help_open_topic('numerical_wrong_answers');
273: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
274: &Apache::loncommon::help_open_topic('Physical_Units');
275: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
276: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
277: } elsif ($token->[1] eq 'formularesponse') {
278: $result.=&Apache::edit::text_arg('Sample Points:','samples',
279: $token,40).
280: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
281: }
282: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
283: } elsif ($target eq 'modified') {
284: my $constructtag;
285: if ($token->[1] eq 'numericalresponse') {
286: $constructtag=&Apache::edit::get_new_args($token,$parstack,
287: $safeeval,'answer',
288: 'incorrect','unit',
289: 'format');
290: } elsif ($token->[1] eq 'formularesponse') {
291: $constructtag=&Apache::edit::get_new_args($token,$parstack,
292: $safeeval,'answer',
293: 'samples');
294: }
295: if ($constructtag) {
296: $result = &Apache::edit::rebuild_tag($token);
297: $result.=&Apache::edit::handle_insert();
298: }
299: } elsif ($target eq 'meta') {
300: $result=&Apache::response::meta_package_write('numericalresponse');
301: } elsif ($target eq 'answer' || $target eq 'grade') {
302: &Apache::response::reset_params();
303: } elsif ($target eq 'web') {
304: my $partid = $Apache::inputtags::part;
305: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
306: &Apache::lonxml::debug("Got unit $hideunit for $partid $id");
307: #no way to enter units, with radio buttons
308: if ((lc($hideunit) eq "yes") && ($Apache::lonhomework::type ne 'exam')) {
309: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
310: $safeeval);
311: if ($unit =~ /\S/) { $result.=" (in $unit) "; }
312: }
313: if ( &Apache::response::show_answer() ) {
314: &set_answertext($tag_internal_answer_name,$target,$token,$tagstack,
315: $parstack,$parser,$safeeval,-1);
316: }
317: }
318: return $result;
319: }
320:
321: sub set_answertext {
322: my ($name,$target,$token,$tagstack,$parstack,$parser,$safeeval,
323: $response_level) = @_;
324: &add_in_tag_answer($parstack,$safeeval,$response_level);
325:
326: if ($name eq '' || !ref($answer{$name})) {
327: if (ref($answer{$tag_internal_answer_name})) {
328: $name = $tag_internal_answer_name;
329: } else {
330: $name = (sort(keys(%answer)))[0];
331: }
332: }
333: return if ($name eq '' || !ref($answer{$name}));
334:
335: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
336: $safeeval,$response_level);
337: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval,
338: $response_level);
339:
340: &Apache::lonxml::debug("answer looks to be $name");
341: my @answertxt;
342: for (my $i=0; $i < scalar(@{$answer{$name}{'answers'}}); $i++) {
343: my $answertxt;
344: my $answer=$answer{$name}{'answers'}[$i];
345: foreach my $element (@$answer) {
346: if ( scalar(@$tagstack)
347: && $tagstack->[$response_level] ne 'numericalresponse') {
348: $answertxt.=$element.',';
349: } else {
350: my $format;
351: if ($#formats > 0) {
352: $format=$formats[$i];
353: } else {
354: $format=$formats[0];
355: }
356: if ($unit=~/\$/) { $format="\$".$format; $unit=~s/\$//g; }
357: if ($unit=~/\,/) { $format="\,".$format; $unit=~s/\,//g; }
358: my $formatted=&format_number($element,$format,$target,
359: $safeeval);
360: $answertxt.=' '.$formatted.',';
361: }
362:
363: }
364: chop($answertxt);
365: if ($target eq 'web') {
366: $answertxt.=" $unit ";
367: }
368:
369: push(@answertxt,$answertxt)
370: }
371:
372: my $id = $Apache::inputtags::response[-1];
373: $Apache::inputtags::answertxt{$id}=\@answertxt;
374: }
375:
376: sub setup_capa_args {
377: my ($safeeval,$parstack,$args,$response) = @_;
378: my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
379: undef(%{ $args_ref });
380:
381: foreach my $arg (@{$args}) {
382: $$args_ref{$arg}=
383: &Apache::lonxml::get_param($arg,$parstack,$safeeval);
384: }
385: foreach my $key (keys(%Apache::inputtags::params)) {
386: $$args_ref{$key}=$Apache::inputtags::params{$key};
387: }
388: &setup_capa_response($args_ref,$response);
389: return $args_ref;
390: }
391:
392: sub setup_capa_response {
393: my ($args_ref,$response) = @_;
394:
395: if (ref($response)) {
396: $$args_ref{'response'}=dclone($response);
397: } else {
398: $$args_ref{'response'}=dclone([$response]);
399: }
400: }
401:
402: sub check_submission {
403: my ($response,$partid,$id,$tag,$parstack,$safeeval,$ignore_sig)=@_;
404: my @args = ('type','tol','sig','format','unit','calc','samples');
405: my $args_ref = &setup_capa_args($safeeval,$parstack,\@args,$response);
406:
407: my $hideunit=
408: &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
409: #no way to enter units, with radio buttons
410: if ($Apache::lonhomework::type eq 'exam' ||
411: lc($hideunit) eq "yes") {
412: delete($$args_ref{'unit'});
413: }
414: #sig fig don't make much sense either
415: if (($Apache::lonhomework::type eq 'exam' ||
416: &Apache::response::submitted('scantron') ||
417: $ignore_sig) &&
418: $tag eq 'numericalresponse') {
419: delete($$args_ref{'sig'});
420: }
421:
422: if ($tag eq 'formularesponse') {
423: if ($$args_ref{'samples'}) {
424: $$args_ref{'type'}='fml';
425: } else {
426: $$args_ref{'type'}='math';
427: }
428: } elsif ($tag eq 'numericalresponse') {
429: $$args_ref{'type'}='float';
430: } elsif ($tag eq 'stringresponse') {
431: if ($$args_ref{'type'} eq '') {
432: $$args_ref{'type'} = 'ci';
433: }
434: }
435:
436: &add_in_tag_answer($parstack,$safeeval);
437:
438: if (!%answer) {
439: &Apache::lonxml::error("No answers are defined");
440: }
441:
442: my (@final_awards,@final_msgs,@names);
443: foreach my $name (keys(%answer)) {
444: &Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} }));
445:
446: ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name});
447: &setup_capa_response($args_ref,$response);
448: use Time::HiRes;
449: my $t0 = [Time::HiRes::gettimeofday()];
450: my ($result,@msgs) =
451: &Apache::run::run("&caparesponse_check_list()",$safeeval);
452: &Apache::lonxml::debug("checking $name $result with $response took ".&Time::HiRes::tv_interval($t0));
453: &Apache::lonxml::debug('msgs are '.join(':',@msgs));
454: my ($awards)=split(/:/,$result);
455: my @awards= split(/,/,$awards);
456: my ($ad, $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
457: push(@final_awards,$ad);
458: push(@final_msgs,$msg);
459: push(@names,$name);
460: }
461: my ($ad, $msg, $name) = &Apache::inputtags::finalizeawards(\@final_awards,
462: \@final_msgs,
463: \@names,1);
464: &Apache::lonxml::debug(" name of picked award is $name from ".join(', ',@names));
465: return($ad,$msg, $name);
466: }
467:
468: sub add_in_tag_answer {
469: my ($parstack,$safeeval,$response_level) = @_;
470: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval,
471: $response_level);
472: &Apache::lonxml::debug('answer is'.join(':',@answer));
473: if (@answer && $answer[0] =~ /\S/) {
474: $answer{$tag_internal_answer_name}= {'type' => 'ordered',
475: 'answers' => [\@answer] };
476: }
477: }
478:
479: sub capa_formula_fix {
480: my ($expression)=@_;
481: return &Apache::response::implicit_multiplication($expression);
482: }
483:
484: sub end_numericalresponse {
485: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
486:
487: &Apache::lonxml::deregister('Apache::caparesponse',
488: ('answer','answergroup','value','array','unit',
489: 'vector'));
490: pop(@Apache::lonxml::namespace);
491:
492: my $increment=1;
493: my $result = '';
494: if (!$Apache::lonxml::default_homework_loaded) {
495: &Apache::lonxml::default_homework_load($safeeval);
496: }
497: my $partid = $Apache::inputtags::part;
498: my $id = $Apache::inputtags::response[-1];
499: my $tag;
500: my $safehole = new Safe::Hole;
501: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
502:
503: if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
504: if ( $target eq 'grade' && &Apache::response::submitted() ) {
505: &Apache::response::setup_params($tag,$safeeval);
506: if ($Apache::lonhomework::type eq 'exam' &&
507: (($tag eq 'formularesponse') || ($tag eq 'mathresponse'))) {
508: $increment=&Apache::response::scored_response($partid,$id);
509: } else {
510: my $response = &Apache::response::getresponse();
511: if ( $response =~ /[^\s]/) {
512: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
513: &Apache::lonxml::debug("submitted a $response<br>\n");
514: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
515:
516: if ( &Apache::response::submitted('scantron')) {
517: &add_in_tag_answer($parstack,$safeeval);
518: my ($values,$display)=&make_numerical_bubbles($partid,$id,
519: $target,$parstack,$safeeval);
520: $response=$values->[$response];
521: }
522: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
523: my ($ad,$msg,$name)=&check_submission($response,$partid,$id,
524: $tag,$parstack,
525: $safeeval);
526:
527: &Apache::lonxml::debug('ad is'.$ad);
528: if ($ad eq 'SIG_FAIL') {
529: my ($sig_u,$sig_l)=
530: &get_sigrange($Apache::inputtags::params{'sig'});
531: $msg=join(':',$msg,$sig_l,$sig_u);
532: &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
533: $Apache::inputtags::params{'sig'});
534: }
535: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
536: if ($Apache::lonhomework::type eq 'survey' &&
537: ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
538: $ad eq 'EXACT_ANS')) {
539: $ad='SUBMITTED';
540: }
541: &Apache::response::handle_previous(\%previous,$ad);
542: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
543: $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
544: $Apache::lonhomework::results{"resource.$partid.$id.answername"}=$name;
545: $result='';
546: }
547: }
548: } elsif ($target eq 'web' || $target eq 'tex') {
549: &check_for_answer_errors($parstack,$safeeval);
550: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
551: my $status = $Apache::inputtags::status['-1'];
552: if ($Apache::lonhomework::type eq 'exam') {
553: # FIXME support multi dimensional numerical problems
554: # in exam bubbles
555: my ($bubble_values,$bubble_display)=
556: &make_numerical_bubbles($partid,$id,$target,$parstack,
557: $safeeval);
558: my $number_of_bubbles = scalar(@{ $bubble_values });
559: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
560: $safeeval);
561: my @alphabet=('A'..'Z');
562: if ($target eq 'web') {
563: if ($tag eq 'numericalresponse') {
564: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
565: $result.= '<table border="1"><tr>';
566: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
567: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
568: my $checked='';
569: if ($previous eq $bubble_values->[$ind]) {
570: $checked=" checked='on' ";
571: }
572: $result.='<td><input type="radio" name="HWVAL_'.$id.
573: '" value="'.$bubble_values->[$ind].'" '.$checked
574: .' /><b>'.$alphabet[$ind].'</b>: '.
575: $bubble_display->[$ind].'</td>';
576: }
577: $result.='</tr></table>';
578: }
579: } elsif ($target eq 'tex') {
580: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
581: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
582: }
583: if ($tag eq 'numericalresponse') {
584: my ($celllength,$number_of_tables,@table_range)=
585: &get_table_sizes($number_of_bubbles,$bubble_display);
586: my $j=0;
587: my $cou=0;
588: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
589: for (my $i=0;$i<$number_of_tables;$i++) {
590: $result.='\vskip -1 mm \noindent \setlength{\tabcolsep}{2 mm}\begin{tabular}{';
591: for (my $ind=0;$ind<$table_range[$j];$ind++) {
592: $result.='p{3 mm}p{'.$celllength.' mm}';
593: }
594: $result.='}';
595: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
596: $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_display->[$ind].'} ';
597: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
598: }
599: $cou += $table_range[$j];
600: $j++;
601: $result.='\\\\\end{tabular}\vskip 0 mm ';
602: }
603: $result.='\end{enumerate}';
604: } else {
605: $increment = &Apache::response::repetition();
606: }
607: }
608: }
609: if (($target eq 'web') && ($tag eq 'formularesponse')
610: && ($Apache::lonhomework::type ne 'exam') && ($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
611: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
612: $result.=&Apache::response::edit_mathresponse_button($id,"HWVAL_$id");
613: }
614:
615: &Apache::response::setup_prior_tries_hash(\&format_prior_response_numerical);
616: } elsif ($target eq 'edit') {
617: $result.='</td></tr>'.&Apache::edit::end_table;
618: } elsif ($target eq 'answer' || $target eq 'analyze') {
619: my $part_id="$partid.$id";
620: if ($target eq 'analyze') {
621: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
622: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
623: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
624: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
625: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
626: &Apache::response::check_if_computed($token,$parstack,
627: $safeeval,'answer');
628: }
629: if (scalar(@$tagstack)) {
630: &Apache::response::setup_params($tag,$safeeval);
631: }
632: &add_in_tag_answer($parstack,$safeeval);
633: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
634:
635: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
636:
637: if ($target eq 'answer') {
638: $result.=&Apache::response::answer_header($tag,undef,
639: scalar(keys(%answer)));
640: if ($tag eq 'numericalresponse'
641: && $Apache::lonhomework::type eq 'exam') {
642: my ($bubble_values,undef,$correct) = &make_numerical_bubbles($partid,
643: $id,$target,$parstack,$safeeval);
644: $result.=&Apache::response::answer_part($tag,$correct);
645: }
646: }
647: foreach my $name (sort(keys(%answer))) {
648: my @answers = @{ $answer{$name}{'answers'} };
649: if ($target eq 'analyze') {
650: foreach my $info ('answer','ans_high','ans_low','format') {
651: $Apache::lonhomework::analyze{"$part_id.$info"}{$name}=[];
652: }
653: }
654: my ($sigline,$tolline);
655: if ($name ne $tag_internal_answer_name
656: || scalar(keys(%answer)) > 1) {
657: $result.=&Apache::response::answer_part($tag,$name);
658: }
659: for(my $i=0;$i<=$#answers;$i++) {
660: my $ans=$answers[$i];
661: my $fmt=$formats[0];
662: if (@formats && $#formats) {$fmt=$formats[$i];}
663: my ($sighigh,$siglow);
664: if ($Apache::inputtags::params{'sig'}) {
665: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
666: }
667: my @vector;
668: if (ref($ans)) {
669: @vector = @{ $ans };
670: } else {
671: @vector = ($ans);
672: }
673: my @all_answer_info;
674: foreach my $element (@vector) {
675: my ($high,$low);
676: if ($Apache::inputtags::params{'tol'}) {
677: ($high,$low)=&get_tolrange($element,$Apache::inputtags::params{'tol'});
678: }
679: if ($target eq 'answer') {
680: if ($fmt && $tag eq 'numericalresponse') {
681: $fmt=~s/e/E/g;
682: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
683: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
684: $element = &format_number($element,$fmt,$target,$safeeval);
685: #if ($high) {
686: # $high=&format_number($high,$fmt,$target,$safeeval);
687: # $low =&format_number($low,$fmt,$target,$safeeval);
688: #}
689: }
690: if ($high && $tag eq 'numericalresponse') {
691: $element.='; ['.$low.'; '.$high.']';
692: $tolline .= "[$low, $high]";
693: }
694: if (defined($sighigh) && $tag eq 'numericalresponse') {
695: if ($env{'form.answer_output_mode'} eq 'tex') {
696: $element.= "; Sig $siglow - $sighigh";
697: } else {
698: $element.= " Sig <i>$siglow - $sighigh</i>";
699: $sigline .= "[$siglow, $sighigh]";
700: }
701: }
702: push(@all_answer_info,$element);
703:
704: } elsif ($target eq 'analyze') {
705: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"}{$name}[$i] }, $element);
706: if ($high) {
707: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"}{$name}[$i] }, $high);
708: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"}{$name}[$i] }, $low);
709: }
710: if ($fmt) {
711: push (@{ $Apache::lonhomework::analyze{"$part_id.format"}{$name}[$i] }, $fmt);
712: }
713: }
714: }
715: if ($target eq 'answer') {
716: $result.= &Apache::response::answer_part($tag,join('; ',@all_answer_info));
717: }
718: }
719:
720: my @fmt_ans;
721: for(my $i=0;$i<=$#answers;$i++) {
722: my $ans=$answers[$i];
723: my $fmt=$formats[0];
724: if (@formats && $#formats) {$fmt=$formats[$i];}
725: foreach my $element (@$ans) {
726: if ($fmt && $tag eq 'numericalresponse') {
727: $fmt=~s/e/E/g;
728: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
729: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
730: $element = &format_number($element,$fmt,$target,
731: $safeeval);
732: if ($fmt=~/\$/ && $unit!~/\$/) { $element=~s/\$//; }
733: }
734: }
735: push(@fmt_ans,join(',',@$ans));
736: }
737: my $response=\@fmt_ans;
738:
739: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.
740: $id.'.turnoffunit');
741: if ($unit ne '' &&
742: ! ($Apache::lonhomework::type eq 'exam' ||
743: lc($hideunit) eq "yes") ) {
744: my $cleanunit=$unit;
745: $cleanunit=~s/\$\,//g;
746: foreach my $ans (@fmt_ans) {
747: $ans.=" $cleanunit";
748: }
749: }
750: my ($ad,$msg)=&check_submission($response,$partid,$id,$tag,
751: $parstack,$safeeval);
752: if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
753: my $error;
754: if ($tag eq 'formularesponse') {
755: $error=&mt("Computer's answer is incorrect ([_1]).",'"'.join(', ',@$response).'"');
756: } else {
757: # answer failed check if it is sig figs that is failing
758: my ($ad,$msg)=&check_submission($response,$partid,$id,
759: $tag,$parstack,
760: $safeeval,1);
761: $error=&mt("Computer's answer is incorrect ([_1]).",'"'.join(', ',@$response).'"').' ';
762: if ($sigline ne '') {
763: $error.=&mt('It is likely that the tolerance range [_1] or significant figures [_2] need to be adjusted.',$tolline,$sigline);
764: } else {
765: $error.=&mt('It is likely that the tolerance range [_1] needs to be adjusted.',$tolline);
766: }
767: }
768: if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
769: &Apache::lonxml::error($error);
770: } else {
771: &Apache::lonxml::warning($error);
772: }
773: }
774:
775: if (defined($unit) and ($unit ne '') and
776: $tag eq 'numericalresponse') {
777: if ($target eq 'answer') {
778: if ($env{'form.answer_output_mode'} eq 'tex') {
779: $result.=&Apache::response::answer_part($tag,
780: " Unit: $unit ");
781: } else {
782: $result.=&Apache::response::answer_part($tag,
783: "Unit: <b>$unit</b>");
784: }
785: } elsif ($target eq 'analyze') {
786: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
787: }
788: }
789: if ($tag eq 'formularesponse' && $target eq 'answer') {
790: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
791: $result.=&Apache::response::answer_part($tag,$samples);
792: }
793: $result.=&Apache::response::next_answer($tag,$name);
794: }
795: if ($target eq 'answer') {
796: $result.=&Apache::response::answer_footer($tag);
797: }
798: }
799: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
800: $target eq 'tex' || $target eq 'analyze') {
801: if (($tag eq 'formularesponse') && ($target eq 'analyze')) {
802: my $type = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.type');
803: if ($type eq 'exam') {
804: $increment = &Apache::response::repetition();
805: }
806: }
807: &Apache::lonxml::increment_counter($increment,"$partid.$id");
808: if ($target eq 'analyze') {
809: &Apache::lonhomework::set_bubble_lines();
810: }
811: }
812: &Apache::response::end_response();
813: return $result;
814: }
815:
816: sub format_prior_response_numerical {
817: my ($mode,$answer) = @_;
818: if (ref($answer)) {
819: my $result = '<table class="LC_prior_numerical"><tr>';
820: foreach my $element (@{ $answer }) {
821: $result.= '<td><span class="LC_prior_numerical">'.
822: &HTML::Entities::encode($element,'"<>&').'</span></td>';
823: }
824: $result.='</tr></table>';
825: return $result;
826: }
827: return '<span class="LC_prior_numerical">'.
828: &HTML::Entities::encode($answer,'"<>&').'</span>';
829:
830: }
831:
832: sub check_for_answer_errors {
833: my ($parstack,$safeeval) = @_;
834: &add_in_tag_answer($parstack,$safeeval);
835: my %counts;
836: foreach my $name (keys(%answer)) {
837: push(@{$counts{scalar(@{$answer{$name}{'answers'}})}},$name);
838: }
839: if (scalar(keys(%counts)) > 1) {
840: my $counts = join(' ',map {
841: my $count = $_;
842: &mt("Answers [_1] had [_2] components.",
843: '<tt>'.join(', ',@{$counts{$count}}).'</tt>',
844: $count);
845: } (sort(keys(%counts))));
846: &Apache::lonxml::error(&mt("All answers must have the same number of components. Varying numbers of answers were seen. ").$counts);
847: }
848: my $expected_number_of_inputs = (keys(%counts))[0];
849: if ( $expected_number_of_inputs > 0
850: && $expected_number_of_inputs != scalar(@Apache::inputtags::inputlist)) {
851: &Apache::lonxml::error(&mt("Expected [_1] input fields, but there were only [_2] seen.",
852: $expected_number_of_inputs,
853: scalar(@Apache::inputtags::inputlist)));
854: }
855: }
856:
857: sub get_table_sizes {
858: my ($number_of_bubbles,$rbubble_values)=@_;
859: my $scale=2; #mm for one digit
860: my $cell_width=0;
861: foreach my $member (@$rbubble_values) {
862: my $cell_width_real=0;
863: if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) {
864: $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
865: } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
866: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
867: } elsif ($member=~/(\d*)\.(\d*)/) {
868: $cell_width_real=(length($1)+length($2)+3)*$scale;
869: } else {
870: $cell_width_real=(length($member)+1)*$scale*0.9;
871: }
872: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
873: }
874: $cell_width+=8;
875: my $textwidth;
876: if ($env{'form.textwidth'} ne '') {
877: $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
878: $textwidth=$1.'.'.$2;
879: } else {
880: $env{'form.textwidth'}=~/(\d+)\.?(\d*)/;
881: $textwidth=$1.'.'.$2;
882: }
883: my $bubbles_per_line=int($textwidth/$cell_width);
884: if ($bubbles_per_line > $number_of_bubbles) {
885: $bubbles_per_line=$number_of_bubbles;
886: } elsif (($bubbles_per_line > $number_of_bubbles/2)
887: && ($number_of_bubbles % 2==0)) {
888: $bubbles_per_line=$number_of_bubbles/2;
889: }
890: if ($bubbles_per_line < 1) {
891: $bubbles_per_line=1;
892: }
893: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
894: my @table_range = ();
895: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
896: if ($number_of_bubbles % $bubbles_per_line) {
897: $number_of_tables++;
898: push @table_range,($number_of_bubbles % $bubbles_per_line);
899: }
900: $cell_width-=8;
901: $cell_width=$cell_width*3/4;
902: return ($cell_width,$number_of_tables,@table_range);
903: }
904:
905: sub format_number {
906: my ($number,$format,$target,$safeeval)=@_;
907: my $ans;
908: if ($format eq '') {
909: #What is the number? (integer,decimal,floating point)
910: if ($number=~/^(\d*\.?\d*)(E|e)[+\-]?(\d*)$/) {
911: $format = '3e';
912: } elsif ($number=~/^(\d*)\.(\d*)$/) {
913: $format = '4f';
914: } elsif ($number=~/^(\d*)$/) {
915: $format = 'd';
916: }
917: }
918: if (!$Apache::lonxml::default_homework_loaded) {
919: &Apache::lonxml::default_homework_load($safeeval);
920: }
921: $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
922: return $ans;
923: }
924:
925: sub make_numerical_bubbles {
926: my ($part,$id,$target,$parstack,$safeeval) =@_;
927:
928: if (!%answer) {
929: &Apache::lonxml::error(&mt("No answers defined for response [_1] in part [_2] to make bubbles for.",$id,$part));
930: return ([],[],undef);
931: }
932:
933: my $number_of_bubbles =
934: &Apache::response::get_response_param($part.'_'.$id,'numbubbles',8);
935:
936: my ($format)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
937: my $name = (exists($answer{$tag_internal_answer_name})
938: ? $tag_internal_answer_name
939: : (sort(keys(%answer)))[0]);
940:
941: if ( scalar(@{$answer{$name}{'answers'}}) > 1) {
942: &Apache::lonxml::error("Only answers with 1 component are supported in exam mode");
943: }
944: if (scalar(@{$answer{$name}{'answers'}[0]}) > 1) {
945: &Apache::lonxml::error("Vector answers are unsupported in exam mode.");
946: }
947:
948: my $answer = $answer{$name}{'answers'}[0][0];
949: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,
950: $safeeval);
951: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
952:
953: my @bubble_values=();
954: my @alphabet=('A'..'Z');
955:
956: &Apache::lonxml::debug("answer is $answer incorrect is @incorrect");
957: my @oldseed=&Math::Random::random_get_seed();
958: if (@incorrect) {
959: &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1 gt $number_of_bubbles));
960: if (defined($incorrect[0]) &&
961: scalar(@incorrect)+1 >= $number_of_bubbles) {
962: &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1).":$number_of_bubbles");
963: &Apache::response::setrandomnumber();
964: my @rand_inc=&Math::Random::random_permutation(@incorrect);
965: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
966: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
967: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": which are :".join(':',@bubble_values));
968: &Math::Random::random_set_seed(@oldseed);
969:
970: my $correct;
971: for(my $i=0; $i<=$#bubble_values;$i++) {
972: if ($bubble_values[$i] eq $answer) {
973: $correct = $alphabet[$i];
974: last;
975: }
976: }
977:
978: if (defined($format) && $format ne '') {
979: my @bubble_display;
980: foreach my $value (@bubble_values) {
981: push(@bubble_display,
982: &format_number($value,$format,$target,$safeeval));
983: }
984: return (\@bubble_values,\@bubble_display,$correct);
985: } else {
986: return (\@bubble_values,\@bubble_values,$correct);
987: }
988: }
989: if (defined($incorrect[0]) &&
990: scalar(@incorrect)+1 < $number_of_bubbles) {
991: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them (".join(',',@incorrect).").");
992: }
993: }
994: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
995: my @powers = (1..$number_of_bubbles);
996: &Apache::response::setrandomnumber();
997: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
998: my $power = $powers[$ind];
999: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
1000: my $factor = $factors[$ind];
1001: my @bubble_display;
1002: my $answerfactor=$answer;
1003: if ($answer==0) {
1004: $answerfactor=&Math::Random::random_uniform_integer(1,1,100)/
1005: &Math::Random::random_uniform_integer(1,1,10);
1006: }
1007: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
1008: $bubble_values[$ind] = $answerfactor*($factor**($power-$powers[$#powers-$ind]));
1009: $bubble_display[$ind] = &format_number($bubble_values[$ind],
1010: $format,$target,$safeeval);
1011: }
1012: my $correct = $alphabet[$number_of_bubbles-$power];
1013: if ($answer==0) {
1014: $correct='A';
1015: $bubble_values[0]=0;
1016: $bubble_display[0] = &format_number($bubble_values[0],
1017: $format,$target,$safeeval);
1018: }
1019: &Math::Random::random_set_seed(@oldseed);
1020: return (\@bubble_values,\@bubble_display,$correct);
1021: }
1022:
1023: sub get_tolrange {
1024: my ($ans,$tol)=@_;
1025: my ($high,$low);
1026: if ($tol =~ /%$/) {
1027: chop($tol);
1028: my $change=$ans*($tol/100.0);
1029: $high=$ans+$change;
1030: $low=$ans-$change;
1031: } else {
1032: $high=$ans+$tol;
1033: $low=$ans-$tol;
1034: }
1035: return ($high,$low);
1036: }
1037:
1038: sub get_sigrange {
1039: my ($sig)=@_;
1040: #&Apache::lonxml::debug("Got a sig of :$sig:");
1041: my $courseid=$env{'request.course.id'};
1042: if ($env{'request.state'} ne 'construct'
1043: && lc($env{"course.$courseid.disablesigfigs"}) eq 'yes') {
1044: return (15,0);
1045: }
1046: my $sig_lbound;
1047: my $sig_ubound;
1048: if ($sig eq '') {
1049: $sig_lbound = 0; #SIG_LB_DEFAULT
1050: $sig_ubound =15; #SIG_UB_DEFAULT
1051: } else {
1052: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
1053: if (!defined($sig_lbound)) {
1054: $sig_lbound = 0; #SIG_LB_DEFAULT
1055: $sig_ubound =15; #SIG_UB_DEFAULT
1056: }
1057: if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
1058: }
1059: if (($sig_ubound<$sig_lbound) ||
1060: ($sig_lbound > 15) ||
1061: ($sig =~/(\+|-)/ ) ) {
1062: my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
1063: if ($env{'request.state'} eq 'construct') {
1064: $errormsg.=
1065: &Apache::loncommon::help_open_topic('Significant_Figures');
1066: }
1067: &Apache::lonxml::error($errormsg);
1068: }
1069: return ($sig_ubound,$sig_lbound);
1070: }
1071:
1072: sub format_prior_response_string {
1073: my ($mode,$answer) =@_;
1074: return '<span class="LC_prior_string">'.
1075: &HTML::Entities::encode($answer,'"<>&').'</span>';
1076: }
1077:
1078: sub start_stringresponse {
1079: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1080: my $result;
1081: my $id = &Apache::response::start_response($parstack,$safeeval);
1082: undef(%answer);
1083: if ($target eq 'meta') {
1084: $result=&Apache::response::meta_package_write('stringresponse');
1085: } elsif ($target eq 'edit') {
1086: $result.=&Apache::edit::tag_start($target,$token);
1087: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
1088: $result.=&Apache::edit::select_arg('Type:','type',
1089: [['cs','Case Sensitive'],['ci','Case Insensitive'],
1090: ['mc','Case Insensitive, Any Order'],
1091: ['re','Regular Expression']],$token);
1092: $result.=&Apache::edit::text_arg('String to display for answer:',
1093: 'answerdisplay',$token);
1094: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1095: } elsif ($target eq 'modified') {
1096: my $constructtag;
1097: $constructtag=&Apache::edit::get_new_args($token,$parstack,
1098: $safeeval,'answer',
1099: 'type','answerdisplay');
1100: if ($constructtag) {
1101: $result = &Apache::edit::rebuild_tag($token);
1102: $result.=&Apache::edit::handle_insert();
1103: }
1104: } elsif ($target eq 'web') {
1105: if ( &Apache::response::show_answer() ) {
1106: my $answer=
1107: &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
1108: if (!defined $answer || $answer eq '') {
1109: $answer=
1110: &Apache::lonxml::get_param('answer',$parstack,$safeeval);
1111: }
1112: $Apache::inputtags::answertxt{$id}=[$answer];
1113: }
1114: } elsif ($target eq 'answer' || $target eq 'grade') {
1115: &Apache::response::reset_params();
1116: }
1117: return $result;
1118: }
1119:
1120: sub end_stringresponse {
1121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1122:
1123: my $result = '';
1124: my $part=$Apache::inputtags::part;
1125: my $id=$Apache::inputtags::response[-1];
1126: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
1127: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
1128: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
1129: &Apache::lonxml::debug("current $answer ".$token->[2]);
1130: if (!$Apache::lonxml::default_homework_loaded) {
1131: &Apache::lonxml::default_homework_load($safeeval);
1132: }
1133: if ( $target eq 'grade' && &Apache::response::submitted() ) {
1134: &Apache::response::setup_params('stringresponse',$safeeval);
1135: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
1136: if ($Apache::lonhomework::type eq 'exam' ||
1137: &Apache::response::submitted('scantron')) {
1138: &Apache::response::scored_response($part,$id);
1139:
1140: } else {
1141: my $response = &Apache::response::getresponse();
1142: if ( $response =~ /[^\s]/) {
1143: my %previous = &Apache::response::check_for_previous($response,
1144: $part,$id);
1145: &Apache::lonxml::debug("submitted a $response<br>\n");
1146: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
1147: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
1148: $response;
1149: my ($ad,$msg);
1150: if ($type eq 're' ) {
1151: # if the RE wasn't in a var it likely got munged,
1152: # thus grab it from the var directly
1153: # my $testans=$token->[2]->{'answer'};
1154: # if ($testans !~ m/^\s*\$/) {
1155: # $answer=$token->[2]->{'answer'};
1156: # }
1157: ${$safeeval->varglob('LONCAPA::response')}=$response;
1158: $result = &Apache::run::run('if ($LONCAPA::response=~m'.$answer.') { return 1; } else { return 0; }',$safeeval);
1159: &Apache::lonxml::debug("current $response");
1160: &Apache::lonxml::debug("current $answer");
1161: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
1162: } else {
1163: my @args = ('type');
1164: my $args_ref = &setup_capa_args($safeeval,$parstack,
1165: \@args,$response);
1166: if ($$args_ref{'type'} eq '') {
1167: $$args_ref{'type'} = 'ci';
1168: }
1169: &add_in_tag_answer($parstack,$safeeval);
1170: my (@final_awards,@final_msgs,@names);
1171: foreach my $name (keys(%answer)) {
1172: &Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} }));
1173: ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name});
1174: my ($result, @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
1175: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
1176: my ($awards)=split(/:/,$result);
1177: my (@awards) = split(/,/,$awards);
1178: ($ad,$msg) =
1179: &Apache::inputtags::finalizeawards(\@awards,\@msgs);
1180: push(@final_awards,$ad);
1181: push(@final_msgs,$msg);
1182: push(@names,$name);
1183: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
1184: }
1185: my ($ad, $msg, $name) =
1186: &Apache::inputtags::finalizeawards(\@final_awards,
1187: \@final_msgs,
1188: \@names,1);
1189: }
1190: if ($Apache::lonhomework::type eq 'survey' &&
1191: ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
1192: $ad eq 'EXACT_ANS')) {
1193: $ad='SUBMITTED';
1194: }
1195: &Apache::response::handle_previous(\%previous,$ad);
1196: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
1197: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
1198: }
1199: }
1200: } elsif ($target eq 'answer' || $target eq 'analyze') {
1201: &add_in_tag_answer($parstack,$safeeval);
1202: if ($target eq 'analyze') {
1203: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
1204: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
1205: &Apache::response::check_if_computed($token,$parstack,$safeeval,
1206: 'answer');
1207: }
1208: &Apache::response::setup_params('stringresponse',$safeeval);
1209: if ($target eq 'answer') {
1210: $result.=&Apache::response::answer_header('stringresponse');
1211: }
1212: foreach my $name (keys(%answer)) {
1213: my @answers = @{ $answer{$name}{'answers'} };
1214: for (my $i=0;$i<=$#answers;$i++) {
1215: my $answer_part = $answers[$i];
1216: foreach my $element (@{$answer_part}) {
1217: if ($target eq 'answer') {
1218: $result.=&Apache::response::answer_part('stringresponse',
1219: $element);
1220: } elsif ($target eq 'analyze') {
1221: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"}{$name}[$i] },
1222: $element);
1223: }
1224: }
1225: if ($target eq 'answer' && $type eq 're') {
1226: $result.=&Apache::response::answer_part('stringresponse',
1227: $answerdisplay);
1228: }
1229: }
1230: }
1231: my $string='Case Insensitive';
1232: if ($type eq 'mc') {
1233: $string='Multiple Choice';
1234: } elsif ($type eq 'cs') {
1235: $string='Case Sensitive';
1236: } elsif ($type eq 'ci') {
1237: $string='Case Insensitive';
1238: } elsif ($type eq 're') {
1239: $string='Regular Expression';
1240: }
1241: if ($target eq 'answer') {
1242: if ($env{'form.answer_output_mode'} eq 'tex') {
1243: $result.=&Apache::response::answer_part('stringresponse',
1244: "$string");
1245: } else {
1246: $result.=&Apache::response::answer_part('stringresponse',
1247: "<b>$string</b>");
1248: }
1249: } elsif ($target eq 'analyze') {
1250: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
1251: $type);
1252: }
1253: if ($target eq 'answer') {
1254: $result.=&Apache::response::answer_footer('stringresponse');
1255: }
1256: } elsif ($target eq 'edit') {
1257: $result.='</td></tr>'.&Apache::edit::end_table;
1258: } elsif ($target eq 'web' || $target eq 'tex') {
1259: &Apache::response::setup_prior_tries_hash(\&format_prior_response_string);
1260: }
1261: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1262: $target eq 'tex' || $target eq 'analyze') {
1263: &Apache::lonxml::increment_counter(&Apache::response::repetition(),
1264: "$part.$id");
1265: if ($target eq 'analyze') {
1266: &Apache::lonhomework::set_bubble_lines();
1267: }
1268: }
1269: &Apache::response::end_response;
1270: return $result;
1271: }
1272:
1273: sub start_formularesponse {
1274: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1275: my $result;
1276: if ($target eq 'meta') {
1277: &Apache::response::start_response($parstack,$safeeval);
1278: $result=&Apache::response::meta_package_write('formularesponse');
1279: &Apache::response::end_response();
1280: } else {
1281: $result.=&start_numericalresponse(@_);
1282: }
1283: return $result;
1284: }
1285:
1286: sub end_formularesponse {
1287: return end_numericalresponse(@_);
1288: }
1289:
1290: 1;
1291: __END__
1292:
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