1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.128 2004/02/11 21:10:45 sakharuk 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 ($Apache::inputtags::params{'numbubbles'}) {
217: $number_of_bubbles = $Apache::inputtags::params{'numbubbles'};
218: }
219: if (!$number_of_bubbles) { $number_of_bubbles=8; }
220:
221: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
222: $safeeval);
223: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
224: $safeeval);
225: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
226: my @bubble_values=&make_numerical_bubbles($number_of_bubbles,
227: $target,$answers[0],
228: $formats[0],\@incorrect);
229: my @alphabet=('A'..'Z');
230: if ($target eq 'web') {
231: if ($tag eq 'numericalresponse') {
232: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
233: $result.= '<table border="1"><tr>';
234: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
235: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
236: my $checked='';
237: if ($previous eq $bubble_values[$ind]) {
238: $checked=" checked='on' ";
239: }
240: $result.='<td><input type="radio" name="HWVAL_'.$id.
241: '" value="'.$bubble_values[$ind].'" '.$checked
242: .' /><b>'.$alphabet[$ind].'</b>: '.
243: $bubble_values[$ind].'</td>';
244: }
245: $result.='</tr></table>';
246: } elsif ($tag eq 'formularesponse') {
247: $result.= '<br /><br /><font color="red">
248: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
249: </textarea></font> <br /><br />';
250: }
251: } elsif ($target eq 'tex') {
252: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
253: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
254: }
255: if ($tag eq 'numericalresponse') {
256: my ($celllength,$number_of_tables,@table_range)=
257: &get_table_sizes($number_of_bubbles,\@bubble_values);
258: my $j=0;
259: my $cou=0;
260: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
261: for (my $i=0;$i<$number_of_tables;$i++) {
262: $result.='\vskip -1 mm \noindent \begin{tabular}{';
263: for (my $ind=0;$ind<$table_range[$j];$ind++) {
264: $result.='p{3 mm}p{'.$celllength.' mm}';
265: }
266: $result.='}';
267: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
268: $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_values[$ind].'} ';
269: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
270: }
271: $cou += $table_range[$j];
272: $j++;
273: $result.='\\\\\end{tabular}\vskip 0 mm ';
274: }
275: $result.='\end{enumerate}';
276: } else {
277: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
278: my $repetition = &Apache::response::repetition();
279: $result.='\begin{enumerate}';
280: for (my $i=0;$i<$repetition;$i++) {
281: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
282: }
283: $increment=$repetition;
284: $result.= '\end{enumerate}';
285: }
286: }
287: }
288: } elsif ($target eq 'edit') {
289: $result.='</td></tr>'.&Apache::edit::end_table;
290: } elsif ($target eq 'answer' || $target eq 'analyze') {
291:
292: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
293: if ($target eq 'analyze') {
294: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
295: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
296: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
297: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
298: }
299: if (scalar(@$tagstack)) {
300: &Apache::response::setup_params($tag);
301: }
302: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
303: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
304: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
305: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
306:
307: if ($target eq 'answer') {
308: $result.=&Apache::response::answer_header($tag);
309: }
310: for(my $i=0;$i<=$#answers;$i++) {
311: my $ans=$answers[$i];
312: my $fmt=$formats[0];
313: if (@formats && $#formats) {$fmt=$formats[$i];}
314: my ($high,$low);
315: if ($Apache::inputtags::params{'tol'}) {
316: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
317: }
318: my ($sighigh,$siglow);
319: if ($Apache::inputtags::params{'sig'}) {
320: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
321: }
322: if ($fmt && $tag eq 'numericalresponse') {
323: $fmt=~s/e/E/g;
324: $ans = sprintf('%.'.$fmt,$ans);
325: if ($high) {
326: $high=sprintf('%.'.$fmt,$high);
327: $low =sprintf('%.'.$fmt,$low);
328: }
329: }
330: if ($target eq 'answer') {
331: if ($high && $tag eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
332: if ($sighigh && $tag eq 'numericalresponse') {
333: if ($ENV{'form.answer_output_mode'} eq 'tex') {
334: $ans.= " Sig $siglow - $sighigh";
335: } else {
336: $ans.= " Sig <i>$siglow - $sighigh</i>";
337: }
338: }
339: $result.=&Apache::response::answer_part($tag,$ans);
340: } elsif ($target eq 'analyze') {
341: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
342: if ($high) {
343: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
344: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
345: }
346: }
347: }
348: if (defined($unit) and ($unit ne '') and
349: $tag eq 'numericalresponse') {
350: if ($target eq 'answer') {
351: if ($ENV{'form.answer_output_mode'} eq 'tex') {
352: $result.=&Apache::response::answer_part($tag,
353: " Unit: $unit ");
354: } else {
355: $result.=&Apache::response::answer_part($tag,
356: "Unit: <b>$unit</b>");
357: }
358: } elsif ($target eq 'analyze') {
359: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
360: }
361: }
362: if ($tag eq 'formularesponse' && $target eq 'answer') {
363: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
364: $result.=&Apache::response::answer_part($tag,$samples);
365: }
366: if ($target eq 'answer') {
367: $result.=&Apache::response::answer_footer($tag);
368: }
369: }
370: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
371: $target eq 'tex' || $target eq 'analyze') {
372: &Apache::lonxml::increment_counter($increment);
373: }
374: &Apache::response::end_response;
375: return $result;
376: }
377:
378: sub get_table_sizes {
379: my ($number_of_bubbles,$rbubble_values)=@_;
380: my $scale=2; #mm for one digit
381: my $cell_width=0;
382: foreach my $member (@$rbubble_values) {
383: my $cell_width_real=0;
384: if ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
385: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
386: } elsif ($member=~/(\d*)\.?(\d*)/) {
387: $cell_width_real=(length($1)+length($2)+2)*$scale;
388: } else {
389: $cell_width_real=(length($member)+1)*$scale;
390: }
391: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
392: }
393: $cell_width+=8;
394: $ENV{'form.textwidth'}=~/(\d+)/;
395: my $textwidth=$1;
396: my $bubbles_per_line=int($textwidth/$cell_width);
397: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
398: my @table_range = ();
399: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
400: if ($number_of_bubbles % $bubbles_per_line) {
401: $number_of_tables++;
402: push @table_range,($number_of_bubbles % $bubbles_per_line);
403: }
404: $cell_width-=8;
405: return ($cell_width,$number_of_tables,@table_range);
406: }
407:
408: sub format_number {
409: my ($number,$format,$target)=@_;
410: my $ans;
411: if ($format ne '') {
412: $format=~s/e/E/g;
413: $ans = sprintf('%.'.$format,$number);
414: } else {
415: my $format = '';
416: #What is the number? (integer,decimal,floating point)
417: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
418: $format = '3e';
419: } elsif ($number=~/^(\d*)\.(\d*)$/) {
420: $format = '4f';
421: } elsif ($number=~/^(\d*)$/) {
422: $format = 'd';
423: }
424: $ans = sprintf('%.'.$format,$number);
425: }
426: if ($target eq 'tex') {
427: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
428: my $number = $1;
429: my $power = $2;
430: $power=~s/^\+//;
431: $power=~s/^(-?)0+(\d+)/$1$2/;
432: $ans=$number.'$\times 10^{'.$power.'}$'; #'stupidemacs
433: }
434: }
435: return $ans;
436: }
437:
438: sub make_numerical_bubbles {
439: my ($number_of_bubbles,$target,$answer,$format,$incorrect) =@_;
440: my @bubble_values = ();
441: &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
442: my @oldseed=&Math::Random::random_get_seed();
443: if (defined($incorrect) && ref($incorrect)) {
444: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
445: if (defined($$incorrect[0]) &&
446: scalar(@$incorrect)+1 >= $number_of_bubbles) {
447: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
448: &Apache::response::setrandomnumber();
449: my @rand_inc=&Math::Random::random_permutation(@$incorrect);
450: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
451: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
452: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
453: &Math::Random::random_set_seed(@oldseed);
454: return @bubble_values;
455: }
456: if (defined($$incorrect[0]) &&
457: scalar(@$incorrect)+1 < $number_of_bubbles) {
458: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them.");
459: }
460: }
461: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
462: my @powers = (1..$number_of_bubbles);
463: &Apache::response::setrandomnumber();
464: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
465: my $power = $powers[$ind];
466: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
467: my $factor = $factors[$ind];
468: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
469: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
470: $bubble_values[$ind] = &format_number($bubble_values[$ind],
471: $format,$target);
472:
473: }
474: &Math::Random::random_set_seed(@oldseed);
475: return @bubble_values;
476: }
477:
478: sub get_tolrange {
479: my ($ans,$tol)=@_;
480: my ($high,$low);
481: if ($tol =~ /%$/) {
482: chop($tol);
483: my $change=$ans*($tol/100.0);
484: $high=$ans+$change;
485: $low=$ans-$change;
486: } else {
487: $high=$ans+$tol;
488: $low=$ans-$tol;
489: }
490: return ($high,$low);
491: }
492:
493: sub get_sigrange {
494: my ($sig)=@_;
495: &Apache::lonxml::debug("Got a sig of :$sig:");
496: my $sig_lbound;
497: my $sig_ubound;
498: if ($sig eq '') {
499: $sig_lbound = 0; #SIG_LB_DEFAULT
500: $sig_ubound =15; #SIG_UB_DEFAULT
501: } else {
502: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
503: if (!$sig_lbound) {
504: $sig_lbound = 0; #SIG_LB_DEFAULT
505: $sig_ubound =15; #SIG_UB_DEFAULT
506: }
507: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
508: }
509: return ($sig_ubound,$sig_lbound);
510: }
511:
512: sub start_stringresponse {
513: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
514: my $result;
515: my $id = &Apache::response::start_response($parstack,$safeeval);
516: if ($target eq 'meta') {
517: &Apache::response::start_response($parstack,$safeeval);
518: $result=&Apache::response::meta_package_write('stringresponse');
519: &Apache::response::end_response();
520: } elsif ($target eq 'edit') {
521: $result.=&Apache::edit::tag_start($target,$token);
522: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
523: $result.=&Apache::edit::select_arg('Type:','type',
524: [['cs','Case Sensitive'],['ci','Case Insensitive'],
525: ['mc','Case Insensitive, Any Order'],
526: ['re','Regular Expression']],$token);
527: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
528: } elsif ($target eq 'modified') {
529: my $constructtag;
530: $constructtag=&Apache::edit::get_new_args($token,$parstack,
531: $safeeval,'answer',
532: 'type');
533: if ($constructtag) {
534: $result = &Apache::edit::rebuild_tag($token);
535: $result.=&Apache::edit::handle_insert();
536: }
537: } elsif ($target eq 'answer' || $target eq 'grade') {
538: &Apache::response::reset_params();
539: }
540: return $result;
541: }
542:
543: sub end_stringresponse {
544: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
545: my $increment=1;
546: my $result = '';
547: my $part=$Apache::inputtags::part;
548: my $id=$Apache::inputtags::response[-1];
549: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
550: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
551: &Apache::lonxml::debug("current $answer ".$token->[2]);
552: if (!$Apache::lonxml::default_homework_loaded) {
553: &Apache::lonxml::default_homework_load($safeeval);
554: }
555: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
556: &Apache::response::setup_params('stringresponse');
557: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
558: if ($Apache::lonhomework::type eq 'exam' ||
559: $ENV{'form.submitted'} eq 'scantron') {
560: $increment=&Apache::response::scored_response($part,$id);
561: } else {
562: my $response = &Apache::response::getresponse();
563: if ( $response =~ /[^\s]/) {
564: my %previous = &Apache::response::check_for_previous($response,
565: $part,$id);
566: &Apache::lonxml::debug("submitted a $response<br>\n");
567: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
568:
569: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
570: $response;
571: my $ad;
572: if ($type eq 're' ) {
573: # if the RE wasn't in a var it likely got munged,
574: # thus grab it from the var directly
575: # my $testans=$token->[2]->{'answer'};
576: # if ($testans !~ m/^\s*\$/) {
577: # $answer=$token->[2]->{'answer'};
578: # }
579: ${$safeeval->varglob('LONCAPA_INTERNAL_response')}=
580: $response;
581: $result = &Apache::run::run('return $LONCAPA_INTERNAL_response=~m'.$answer,$safeeval);
582: &Apache::lonxml::debug("current $response");
583: &Apache::lonxml::debug("current $answer");
584: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
585: } else {
586: $response =~ s/\\/\\\\/g;
587: $response =~ s/\'/\\\'/g;
588: &Apache::lonxml::debug("current $response");
589: my $expression="&caparesponse_check_list('".$response."','".
590: $$parstack[-1];
591: foreach my $key (keys(%Apache::inputtags::params)) {
592: $expression.= ';my $'. #'
593: $key.'="'.$Apache::inputtags::params{$key}.'"';
594: }
595: $expression.="');";
596: &Apache::lonxml::debug('answer is'.join(':',$answer));
597: @{$safeeval->varglob('CAPARESPONSE_CHECK_LIST_answer')}=($answer);
598: $result = &Apache::run::run($expression,$safeeval);
599: my ($awards) = split /:/ , $result;
600: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
601: &Apache::lonxml::debug("$expression");
602: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
603: }
604: &Apache::response::handle_previous(\%previous,$ad);
605: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
606: }
607: }
608: } elsif ($target eq 'web' || $target eq 'tex') {
609: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
610: my $status = $Apache::inputtags::status['-1'];
611: if ( &Apache::response::show_answer() ) {
612: if ($target eq 'web') {
613: $result="<br />The correct answer is ".$answer;
614: # join(', ',@answers).".<br />";
615: }
616: }
617: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
618: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
619: $increment = &Apache::response::repetition();
620: $result.='\begin{enumerate}';
621: for (my $i=0;$i<$increment;$i++) {
622: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
623: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
624: }
625: $result.= '\end{enumerate}';
626: }
627: } elsif ($target eq 'answer' || $target eq 'analyze') {
628: if ($target eq 'analyze') {
629: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
630: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
631: }
632: &Apache::response::setup_params('stringresponse');
633: if ($target eq 'answer') {
634: $result.=&Apache::response::answer_header('stringresponse');
635: }
636: # foreach my $ans (@answers) {
637: if ($target eq 'answer') {
638: $result.=&Apache::response::answer_part('stringresponse',$answer);
639: } elsif ($target eq 'analyze') {
640: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
641: $answer);
642: }
643: # }
644: my $string='Case Insensitive';
645: if ($type eq 'mc') {
646: $string='Multiple Choice';
647: } elsif ($type eq 'cs') {
648: $string='Case Sensitive';
649: } elsif ($type eq 'ci') {
650: $string='Case Insensitive';
651: } elsif ($type eq 're') {
652: $string='Regular Expression';
653: }
654: if ($target eq 'answer') {
655: if ($ENV{'form.answer_output_mode'} eq 'tex') {
656: $result.=&Apache::response::answer_part('stringresponse',
657: "$string");
658: } else {
659: $result.=&Apache::response::answer_part('stringresponse',
660: "<b>$string</b>");
661: }
662: } elsif ($target eq 'analyze') {
663: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
664: $type);
665: }
666: if ($target eq 'answer') {
667: $result.=&Apache::response::answer_footer('stringresponse');
668: }
669: } elsif ($target eq 'edit') {
670: $result.='</td></tr>'.&Apache::edit::end_table;
671: }
672: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
673: $target eq 'tex' || $target eq 'analyze') {
674: &Apache::lonxml::increment_counter($increment);
675: }
676: &Apache::response::end_response;
677: return $result;
678: }
679:
680: sub start_formularesponse {
681: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
682: my $result;
683: if ($target eq 'meta') {
684: &Apache::response::start_response($parstack,$safeeval);
685: $result=&Apache::response::meta_package_write('formularesponse');
686: &Apache::response::end_response();
687: } else {
688: $result.=&start_numericalresponse(@_);
689: }
690: return $result;
691: }
692:
693: sub end_formularesponse {
694: return end_numericalresponse(@_);
695: }
696:
697: 1;
698: __END__
699:
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