1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.125 2003/12/11 23:39:54 albertel 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:
33: BEGIN {
34: &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));
35: }
36:
37: sub start_numericalresponse {
38: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
39: my $id = &Apache::response::start_response($parstack,$safeeval);
40: my $result;
41: if ($target eq 'edit') {
42: $result.=&Apache::edit::tag_start($target,$token);
43: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
44: if ($token->[1] eq 'numericalresponse') {
45: $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
46: $token);
47: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
48: &Apache::loncommon::help_open_topic('Physical_Units');
49: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
50: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
51: } elsif ($token->[1] eq 'formularesponse') {
52: $result.=&Apache::edit::text_arg('Sample Points:','samples',
53: $token,40).
54: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
55: }
56: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
57: } elsif ($target eq 'modified') {
58: my $constructtag;
59: if ($token->[1] eq 'numericalresponse') {
60: $constructtag=&Apache::edit::get_new_args($token,$parstack,
61: $safeeval,'answer',
62: 'incorrect','unit',
63: 'format');
64: } elsif ($token->[1] eq 'formularesponse') {
65: $constructtag=&Apache::edit::get_new_args($token,$parstack,
66: $safeeval,'answer',
67: 'samples');
68: }
69: if ($constructtag) {
70: $result = &Apache::edit::rebuild_tag($token);
71: $result.=&Apache::edit::handle_insert();
72: }
73: } elsif ($target eq 'meta') {
74: $result=&Apache::response::meta_package_write('numericalresponse');
75: } elsif ($target eq 'answer' || $target eq 'grade') {
76: &Apache::response::reset_params();
77: } elsif ($target eq 'web') {
78: my $partid = $Apache::inputtags::part;
79: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
80: &Apache::lonxml::debug("Got unit $hideunit for $partid $id");
81: #no way to enter units, with radio buttons
82: if (lc($hideunit) eq "yes") {
83: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
84: $safeeval);
85: if ($unit =~ /\S/) { $result.=" (in $unit) "; }
86: }
87: }
88: return $result;
89: }
90:
91: sub end_numericalresponse {
92: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
93: my $increment=1;
94: my $result = '';
95: if (!$Apache::lonxml::default_homework_loaded) {
96: &Apache::lonxml::default_homework_load($safeeval);
97: }
98: my $tag;
99: if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
100: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
101: &Apache::response::setup_params($tag);
102: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
103: my $partid = $Apache::inputtags::part;
104: my $id = $Apache::inputtags::response['-1'];
105: if ($Apache::lonhomework::type eq 'exam' &&
106: $tag eq 'formularesponse') {
107: $increment=&Apache::response::scored_response($partid,$id);
108: } else {
109: my $response = &Apache::response::getresponse();
110: if ( $response =~ /[^\s]/) {
111: my $ad;
112: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
113: &Apache::lonxml::debug("submitted a $response<br>\n");
114: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
115:
116: if ($ENV{'form.submitted'} eq 'scantron') {
117: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
118: if (!$number_of_bubbles) { $number_of_bubbles=8; }
119: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
120: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
121: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
122: my @values=&make_numerical_bubbles($number_of_bubbles,$target,$answers[0],$formats[0],\@incorrect);
123: $response=$values[$response];
124: } else {
125: $response =~ s/\\/\\\\/g;
126: $response =~ s/\'/\\\'/g;
127: }
128: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
129: &Apache::lonxml::debug("current $response");
130: my $expression="&caparesponse_check_list('".$response."','".
131: $$parstack[-1];
132: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
133:
134: foreach my $key (keys(%Apache::inputtags::params)) {
135: $expression.= ';my $'. #'
136: $key.'="'.$Apache::inputtags::params{$key}.'"';
137: }
138:
139: #no way to enter units, with radio buttons
140: if ($Apache::lonhomework::type eq 'exam' ||
141: lc($hideunit) eq "yes") {
142: $expression.=';my $unit=undef;';
143: }
144: #sig fig don't make much sense either
145: if (($Apache::lonhomework::type eq 'exam' ||
146: $ENV{'form.submitted'} eq 'scantron') &&
147: $tag eq 'numericalresponse') {
148: $expression.=';my $sig=undef;';
149: }
150:
151: if ($tag eq 'formularesponse') {
152: $expression.=';my $type="fml";';
153: } elsif ($tag eq 'numericalresponse') {
154: $expression.=';my $type="float";';
155: }
156: $expression.="');";
157: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
158: &Apache::lonxml::debug('answer is'.join(':',@answer));
159: @{$safeeval->varglob('CAPARESPONSE_CHECK_LIST_answer')}=@answer;
160:
161: $result = &Apache::run::run($expression,$safeeval);
162: my ($awards) = split /:/ , $result;
163: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
164: &Apache::lonxml::debug("$expression");
165: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
166: &Apache::response::handle_previous(\%previous,$ad);
167: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
168: $result='';
169: }
170: }
171: } elsif ($target eq 'web' || $target eq 'tex') {
172: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
173: $safeeval);
174: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
175: my $status = $Apache::inputtags::status['-1'];
176: if ( &Apache::response::show_answer() ) {
177: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
178: $safeeval);
179: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
180: $safeeval);
181: if ($target eq 'web') {
182: $result="<br />The correct answer is ";
183: }
184: for (my $i=0; $i <= $#answers; $i++) {
185: my $answer=$answers[$i];
186: my $format;
187: if ($#formats > 0) {
188: $format=$formats[$i];
189: } else {
190: $format=$formats[0];
191: }
192: my $formatted;
193: if ((defined($format)) && ($format ne '')) {
194: $format=~s/e/E/g;
195: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
196: $formatted=sprintf('%.'.$format,$answer).',';
197: } else {
198: &Apache::lonxml::debug("no format answer :$answer:");
199: $formatted="$answer,";
200: }
201: if ($target eq 'tex') {
202: $formatted='';
203: #$formatted=&Apache::lonxml::latex_special_symbols($formatted);
204: }
205: $result.=$formatted;
206: }
207: chop $result;
208: if ($target eq 'web') {
209: $result.=" $unit.<br />";
210: }
211: }
212: if ($Apache::lonhomework::type eq 'exam') {
213: my $partid=$Apache::inputtags::part;
214: my $id=$Apache::inputtags::response[-1];
215: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
216: if (!$number_of_bubbles) { $number_of_bubbles=8; }
217: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
218: $safeeval);
219: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
220: $safeeval);
221: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
222: my @bubble_values=&make_numerical_bubbles($number_of_bubbles,
223: $target,$answers[0],
224: $formats[0],\@incorrect);
225: my @alphabet=('A'..'Z');
226: if ($target eq 'web') {
227: if ($tag eq 'numericalresponse') {
228: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
229: $result.= '<table border="1"><tr>';
230: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
231: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
232: my $checked='';
233: if ($previous eq $bubble_values[$ind]) {
234: $checked=" checked='on' ";
235: }
236: $result.='<td><input type="radio" name="HWVAL_'.$id.
237: '" value="'.$bubble_values[$ind].'" '.$checked
238: .' /><b>'.$alphabet[$ind].'</b>: '.
239: $bubble_values[$ind].'</td>';
240: }
241: $result.='</tr></table>';
242: } elsif ($tag eq 'formularesponse') {
243: $result.= '<br /><br /><font color="red">
244: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
245: </textarea></font> <br /><br />';
246: }
247: } elsif ($target eq 'tex') {
248: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
249: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
250: }
251: if ($tag eq 'numericalresponse') {
252: my ($celllength,$number_of_tables,@table_range)=
253: &get_table_sizes($formats[0],$number_of_bubbles);
254: my $j=0;
255: my $cou=0;
256: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
257: for (my $i=0;$i<$number_of_tables;$i++) {
258: $result.='\vskip -1 mm \noindent \begin{tabular}{';
259: for (my $ind=0;$ind<$table_range[$j];$ind++) {
260: $result.='lp{'.$celllength.' mm}';
261: }
262: $result.='}';
263: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
264: $result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$bubble_values[$ind].'} ';
265: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
266: }
267: $cou += $table_range[$j];
268: $j++;
269: $result.='\\\\\end{tabular}\vskip 0 mm ';
270: }
271: $result.='\end{enumerate}';
272: } else {
273: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
274: my $repetition = &Apache::response::repetition();
275: $result.='\begin{enumerate}';
276: for (my $i=0;$i<$repetition;$i++) {
277: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
278: }
279: $increment=$repetition;
280: $result.= '\end{enumerate}';
281: }
282: }
283: }
284: } elsif ($target eq 'edit') {
285: $result.='</td></tr>'.&Apache::edit::end_table;
286: } elsif ($target eq 'answer' || $target eq 'analyze') {
287:
288: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
289: if ($target eq 'analyze') {
290: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
291: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
292: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
293: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
294: }
295: if (scalar(@$tagstack)) {
296: &Apache::response::setup_params($tag);
297: }
298: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
299: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
300: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
301: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
302:
303: if ($target eq 'answer') {
304: $result.=&Apache::response::answer_header($tag);
305: }
306: for(my $i=0;$i<=$#answers;$i++) {
307: my $ans=$answers[$i];
308: my $fmt=$formats[0];
309: if (@formats && $#formats) {$fmt=$formats[$i];}
310: my ($high,$low);
311: if ($Apache::inputtags::params{'tol'}) {
312: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
313: }
314: my ($sighigh,$siglow);
315: if ($Apache::inputtags::params{'sig'}) {
316: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
317: }
318: if ($fmt && $tag eq 'numericalresponse') {
319: $fmt=~s/e/E/g;
320: $ans = sprintf('%.'.$fmt,$ans);
321: if ($high) {
322: $high=sprintf('%.'.$fmt,$high);
323: $low =sprintf('%.'.$fmt,$low);
324: }
325: }
326: if ($target eq 'answer') {
327: if ($high && $tag eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
328: if ($sighigh && $tag eq 'numericalresponse') {
329: if ($ENV{'form.answer_output_mode'} eq 'tex') {
330: $ans.= " Sig $siglow - $sighigh";
331: } else {
332: $ans.= " Sig <i>$siglow - $sighigh</i>";
333: }
334: }
335: $result.=&Apache::response::answer_part($tag,$ans);
336: } elsif ($target eq 'analyze') {
337: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
338: if ($high) {
339: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
340: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
341: }
342: }
343: }
344: if (defined($unit) and ($unit ne '') and
345: $tag eq 'numericalresponse') {
346: if ($target eq 'answer') {
347: if ($ENV{'form.answer_output_mode'} eq 'tex') {
348: $result.=&Apache::response::answer_part($tag,
349: " Unit: $unit ");
350: } else {
351: $result.=&Apache::response::answer_part($tag,
352: "Unit: <b>$unit</b>");
353: }
354: } elsif ($target eq 'analyze') {
355: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
356: }
357: }
358: if ($tag eq 'formularesponse' && $target eq 'answer') {
359: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
360: $result.=&Apache::response::answer_part($tag,$samples);
361: }
362: if ($target eq 'answer') {
363: $result.=&Apache::response::answer_footer($tag);
364: }
365: }
366: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
367: $target eq 'tex' || $target eq 'analyze') {
368: &Apache::lonxml::increment_counter($increment);
369: }
370: &Apache::response::end_response;
371: return $result;
372: }
373:
374: sub get_table_sizes {
375: my ($format,$number_of_bubbles)=@_;
376: my $max_val = 0;
377: if ($format=~m/^(\d+)E([^\d]*)(\d*)$/) {
378: $max_val=$1+$2+4;
379: } else {
380: $max_val=4;
381: }
382: $max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));
383: my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;
384: my @table_range = ();
385: my $number_of_tables = int($number_of_bubbles/$max_val);
386: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
387: if ($number_of_bubbles % $max_val != 0) {
388: $number_of_tables++;
389: push @table_range,($number_of_bubbles % $max_val);
390: }
391: return ($celllength,$number_of_tables,@table_range);
392: }
393:
394: sub format_number {
395: my ($number,$format,$target)=@_;
396: my $ans;
397: if ($format ne '') {
398: $format=~s/e/E/g;
399: $ans = sprintf('%.'.$format,$number);
400: } else {
401: my $format = '';
402: #What is the number? (integer,decimal,floating point)
403: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
404: $format = '3e';
405: } elsif ($number=~/^(\d*)\.(\d*)$/) {
406: $format = '4f';
407: } elsif ($number=~/^(\d*)$/) {
408: $format = 'd';
409: }
410: $ans = sprintf('%.'.$format,$number);
411: }
412: if ($target eq 'tex') {
413: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
414: my $number = $1;
415: my $power = $2;
416: $power=~s/^\+//;
417: $power=~s/^(-?)0+(\d+)/$1$2/;
418: $ans=$number.'$\times 10^{'.$power.'}$'; #'stupidemacs
419: }
420: }
421: return $ans;
422: }
423:
424: sub make_numerical_bubbles {
425: my ($number_of_bubbles,$target,$answer,$format,$incorrect) =@_;
426: my @bubble_values = ();
427: &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
428: my @oldseed=&Math::Random::random_get_seed();
429: if (defined($incorrect) && ref($incorrect)) {
430: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
431: if (scalar(@$incorrect)+1 >= $number_of_bubbles) {
432: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
433: &Apache::response::setrandomnumber();
434: my @rand_inc=&Math::Random::random_permutation(@$incorrect);
435: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
436: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
437: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
438: &Math::Random::random_set_seed(@oldseed);
439: return @bubble_values;
440: }
441: #FIXME what to do when not enough incorrects specified?
442: }
443: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
444: my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
445: &Apache::response::setrandomnumber();
446: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
447: my $power = $powers[$ind];
448: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
449: my $factor = $factors[$ind];
450: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
451: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
452: $bubble_values[$ind] = &format_number($bubble_values[$ind],
453: $format,$target);
454:
455: }
456: &Math::Random::random_set_seed(@oldseed);
457: return @bubble_values;
458: }
459:
460: sub get_tolrange {
461: my ($ans,$tol)=@_;
462: my ($high,$low);
463: if ($tol =~ /%$/) {
464: chop($tol);
465: my $change=$ans*($tol/100.0);
466: $high=$ans+$change;
467: $low=$ans-$change;
468: } else {
469: $high=$ans+$tol;
470: $low=$ans-$tol;
471: }
472: return ($high,$low);
473: }
474:
475: sub get_sigrange {
476: my ($sig)=@_;
477: &Apache::lonxml::debug("Got a sig of :$sig:");
478: my $sig_lbound;
479: my $sig_ubound;
480: if ($sig eq '') {
481: $sig_lbound = 0; #SIG_LB_DEFAULT
482: $sig_ubound =15; #SIG_UB_DEFAULT
483: } else {
484: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
485: if (!$sig_lbound) {
486: $sig_lbound = 0; #SIG_LB_DEFAULT
487: $sig_ubound =15; #SIG_UB_DEFAULT
488: }
489: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
490: }
491: return ($sig_ubound,$sig_lbound);
492: }
493:
494: sub start_stringresponse {
495: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
496: my $result;
497: my $id = &Apache::response::start_response($parstack,$safeeval);
498: if ($target eq 'meta') {
499: &Apache::response::start_response($parstack,$safeeval);
500: $result=&Apache::response::meta_package_write('stringresponse');
501: &Apache::response::end_response();
502: } elsif ($target eq 'edit') {
503: $result.=&Apache::edit::tag_start($target,$token);
504: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
505: $result.=&Apache::edit::select_arg('Type:','type',
506: [['cs','Case Sensitive'],['ci','Case Insensitive'],
507: ['mc','Case Insensitive, Any Order'],
508: ['re','Regular Expression']],$token);
509: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
510: } elsif ($target eq 'modified') {
511: my $constructtag;
512: $constructtag=&Apache::edit::get_new_args($token,$parstack,
513: $safeeval,'answer',
514: 'type');
515: if ($constructtag) {
516: $result = &Apache::edit::rebuild_tag($token);
517: $result.=&Apache::edit::handle_insert();
518: }
519: } elsif ($target eq 'answer' || $target eq 'grade') {
520: &Apache::response::reset_params();
521: }
522: return $result;
523: }
524:
525: sub end_stringresponse {
526: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
527: my $increment=1;
528: my $result = '';
529: my $part=$Apache::inputtags::part;
530: my $id=$Apache::inputtags::response[-1];
531: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
532: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
533: &Apache::lonxml::debug("current $answer ".$token->[2]);
534: if (!$Apache::lonxml::default_homework_loaded) {
535: &Apache::lonxml::default_homework_load($safeeval);
536: }
537: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
538: &Apache::response::setup_params('stringresponse');
539: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
540: if ($Apache::lonhomework::type eq 'exam' ||
541: $ENV{'form.submitted'} eq 'scantron') {
542: $increment=&Apache::response::scored_response($part,$id);
543: } else {
544: my $response = &Apache::response::getresponse();
545: if ( $response =~ /[^\s]/) {
546: my %previous = &Apache::response::check_for_previous($response,
547: $part,$id);
548: &Apache::lonxml::debug("submitted a $response<br>\n");
549: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
550:
551: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
552: $response;
553: my $ad;
554: if ($type eq 're' ) {
555: # if the RE wasn't in a var it likely got munged,
556: # thus grab it from the var directly
557: # my $testans=$token->[2]->{'answer'};
558: # if ($testans !~ m/^\s*\$/) {
559: # $answer=$token->[2]->{'answer'};
560: # }
561: ${$safeeval->varglob('LONCAPA_INTERNAL_response')}=
562: $response;
563: $result = &Apache::run::run('return $LONCAPA_INTERNAL_response=~m'.$answer,$safeeval);
564: &Apache::lonxml::debug("current $response");
565: &Apache::lonxml::debug("current $answer");
566: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
567: } else {
568: $response =~ s/\\/\\\\/g;
569: $response =~ s/\'/\\\'/g;
570: &Apache::lonxml::debug("current $response");
571: my $expression="&caparesponse_check_list('".$response."','".
572: $$parstack[-1];
573: foreach my $key (keys(%Apache::inputtags::params)) {
574: $expression.= ';my $'. #'
575: $key.'="'.$Apache::inputtags::params{$key}.'"';
576: }
577: $expression.="');";
578: &Apache::lonxml::debug('answer is'.join(':',$answer));
579: @{$safeeval->varglob('CAPARESPONSE_CHECK_LIST_answer')}=($answer);
580: $result = &Apache::run::run($expression,$safeeval);
581: my ($awards) = split /:/ , $result;
582: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
583: &Apache::lonxml::debug("$expression");
584: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
585: }
586: &Apache::response::handle_previous(\%previous,$ad);
587: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
588: }
589: }
590: } elsif ($target eq 'web' || $target eq 'tex') {
591: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
592: my $status = $Apache::inputtags::status['-1'];
593: if ( &Apache::response::show_answer() ) {
594: if ($target eq 'web') {
595: $result="<br />The correct answer is ".$answer;
596: # join(', ',@answers).".<br />";
597: }
598: }
599: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
600: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
601: $increment = &Apache::response::repetition();
602: $result.='\begin{enumerate}';
603: for (my $i=0;$i<$increment;$i++) {
604: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
605: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
606: }
607: $result.= '\end{enumerate}';
608: }
609: } elsif ($target eq 'answer' || $target eq 'analyze') {
610: if ($target eq 'analyze') {
611: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
612: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
613: }
614: &Apache::response::setup_params('stringresponse');
615: if ($target eq 'answer') {
616: $result.=&Apache::response::answer_header('stringresponse');
617: }
618: # foreach my $ans (@answers) {
619: if ($target eq 'answer') {
620: $result.=&Apache::response::answer_part('stringresponse',$answer);
621: } elsif ($target eq 'analyze') {
622: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
623: $answer);
624: }
625: # }
626: my $string='Case Insensitive';
627: if ($type eq 'mc') {
628: $string='Multiple Choice';
629: } elsif ($type eq 'cs') {
630: $string='Case Sensitive';
631: } elsif ($type eq 'ci') {
632: $string='Case Insensitive';
633: } elsif ($type eq 're') {
634: $string='Regular Expression';
635: }
636: if ($target eq 'answer') {
637: if ($ENV{'form.answer_output_mode'} eq 'tex') {
638: $result.=&Apache::response::answer_part('stringresponse',
639: "$string");
640: } else {
641: $result.=&Apache::response::answer_part('stringresponse',
642: "<b>$string</b>");
643: }
644: } elsif ($target eq 'analyze') {
645: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
646: $type);
647: }
648: if ($target eq 'answer') {
649: $result.=&Apache::response::answer_footer('stringresponse');
650: }
651: } elsif ($target eq 'edit') {
652: $result.='</td></tr>'.&Apache::edit::end_table;
653: }
654: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
655: $target eq 'tex' || $target eq 'analyze') {
656: &Apache::lonxml::increment_counter($increment);
657: }
658: &Apache::response::end_response;
659: return $result;
660: }
661:
662: sub start_formularesponse {
663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
664: my $result;
665: if ($target eq 'meta') {
666: &Apache::response::start_response($parstack,$safeeval);
667: $result=&Apache::response::meta_package_write('formularesponse');
668: &Apache::response::end_response();
669: } else {
670: $result.=&start_numericalresponse(@_);
671: }
672: return $result;
673: }
674:
675: sub end_formularesponse {
676: return end_numericalresponse(@_);
677: }
678:
679: 1;
680: __END__
681:
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