1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.129 2004/02/13 15:09:52 www 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 Apache::lonlocal;
33:
34: BEGIN {
35: &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));
36: }
37:
38: sub start_numericalresponse {
39: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
40: my $id = &Apache::response::start_response($parstack,$safeeval);
41: my $result;
42: if ($target eq 'edit') {
43: $result.=&Apache::edit::tag_start($target,$token);
44: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
45: if ($token->[1] eq 'numericalresponse') {
46: $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
47: $token);
48: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
49: &Apache::loncommon::help_open_topic('Physical_Units');
50: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
51: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
52: } elsif ($token->[1] eq 'formularesponse') {
53: $result.=&Apache::edit::text_arg('Sample Points:','samples',
54: $token,40).
55: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
56: }
57: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
58: } elsif ($target eq 'modified') {
59: my $constructtag;
60: if ($token->[1] eq 'numericalresponse') {
61: $constructtag=&Apache::edit::get_new_args($token,$parstack,
62: $safeeval,'answer',
63: 'incorrect','unit',
64: 'format');
65: } elsif ($token->[1] eq 'formularesponse') {
66: $constructtag=&Apache::edit::get_new_args($token,$parstack,
67: $safeeval,'answer',
68: 'samples');
69: }
70: if ($constructtag) {
71: $result = &Apache::edit::rebuild_tag($token);
72: $result.=&Apache::edit::handle_insert();
73: }
74: } elsif ($target eq 'meta') {
75: $result=&Apache::response::meta_package_write('numericalresponse');
76: } elsif ($target eq 'answer' || $target eq 'grade') {
77: &Apache::response::reset_params();
78: } elsif ($target eq 'web') {
79: my $partid = $Apache::inputtags::part;
80: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
81: &Apache::lonxml::debug("Got unit $hideunit for $partid $id");
82: #no way to enter units, with radio buttons
83: if (lc($hideunit) eq "yes") {
84: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
85: $safeeval);
86: if ($unit =~ /\S/) { $result.=" (in $unit) "; }
87: }
88: }
89: return $result;
90: }
91:
92: sub end_numericalresponse {
93: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
94: my $increment=1;
95: my $result = '';
96: if (!$Apache::lonxml::default_homework_loaded) {
97: &Apache::lonxml::default_homework_load($safeeval);
98: }
99: my $tag;
100: if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
101: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
102: &Apache::response::setup_params($tag);
103: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
104: my $partid = $Apache::inputtags::part;
105: my $id = $Apache::inputtags::response['-1'];
106: if ($Apache::lonhomework::type eq 'exam' &&
107: $tag eq 'formularesponse') {
108: $increment=&Apache::response::scored_response($partid,$id);
109: } else {
110: my $response = &Apache::response::getresponse();
111: if ( $response =~ /[^\s]/) {
112: my $ad;
113: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
114: &Apache::lonxml::debug("submitted a $response<br>\n");
115: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
116:
117: if ($ENV{'form.submitted'} eq 'scantron') {
118: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
119: if (!$number_of_bubbles) { $number_of_bubbles=8; }
120: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
121: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
122: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
123: my @values=&make_numerical_bubbles($number_of_bubbles,$target,$answers[0],$formats[0],\@incorrect);
124: $response=$values[$response];
125: } else {
126: $response =~ s/\\/\\\\/g;
127: $response =~ s/\'/\\\'/g;
128: }
129: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
130: &Apache::lonxml::debug("current $response");
131: my $expression="&caparesponse_check_list('".$response."','".
132: $$parstack[-1];
133: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
134:
135: foreach my $key (keys(%Apache::inputtags::params)) {
136: $expression.= ';my $'. #'
137: $key.'="'.$Apache::inputtags::params{$key}.'"';
138: }
139:
140: #no way to enter units, with radio buttons
141: if ($Apache::lonhomework::type eq 'exam' ||
142: lc($hideunit) eq "yes") {
143: $expression.=';my $unit=undef;';
144: }
145: #sig fig don't make much sense either
146: if (($Apache::lonhomework::type eq 'exam' ||
147: $ENV{'form.submitted'} eq 'scantron') &&
148: $tag eq 'numericalresponse') {
149: $expression.=';my $sig=undef;';
150: }
151:
152: if ($tag eq 'formularesponse') {
153: $expression.=';my $type="fml";';
154: } elsif ($tag eq 'numericalresponse') {
155: $expression.=';my $type="float";';
156: }
157: $expression.="');";
158: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
159: &Apache::lonxml::debug('answer is'.join(':',@answer));
160: @{$safeeval->varglob('CAPARESPONSE_CHECK_LIST_answer')}=@answer;
161:
162: $result = &Apache::run::run($expression,$safeeval);
163: my ($awards) = split /:/ , $result;
164: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
165: &Apache::lonxml::debug("$expression");
166: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
167: &Apache::response::handle_previous(\%previous,$ad);
168: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
169: $result='';
170: }
171: }
172: } elsif ($target eq 'web' || $target eq 'tex') {
173: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
174: $safeeval);
175: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
176: my $status = $Apache::inputtags::status['-1'];
177: if ( &Apache::response::show_answer() ) {
178: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
179: $safeeval);
180: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
181: $safeeval);
182: if ($target eq 'web') {
183: $result="<br />".&mt('The correct answer is')." ";
184: }
185: for (my $i=0; $i <= $#answers; $i++) {
186: my $answer=$answers[$i];
187: my $format;
188: if ($#formats > 0) {
189: $format=$formats[$i];
190: } else {
191: $format=$formats[0];
192: }
193: my $formatted;
194: if ((defined($format)) && ($format ne '')) {
195: $format=~s/e/E/g;
196: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
197: $formatted=sprintf('%.'.$format,$answer).',';
198: } else {
199: &Apache::lonxml::debug("no format answer :$answer:");
200: $formatted="$answer,";
201: }
202: if ($target eq 'tex') {
203: $formatted='';
204: #$formatted=&Apache::lonxml::latex_special_symbols($formatted);
205: }
206: $result.=$formatted;
207: }
208: chop $result;
209: if ($target eq 'web') {
210: $result.=" $unit.<br />";
211: }
212: }
213: if ($Apache::lonhomework::type eq 'exam') {
214: my $partid=$Apache::inputtags::part;
215: my $id=$Apache::inputtags::response[-1];
216: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
217: if ($Apache::inputtags::params{'numbubbles'}) {
218: $number_of_bubbles = $Apache::inputtags::params{'numbubbles'};
219: }
220: if (!$number_of_bubbles) { $number_of_bubbles=8; }
221:
222: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
223: $safeeval);
224: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
225: $safeeval);
226: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
227: my @bubble_values=&make_numerical_bubbles($number_of_bubbles,
228: $target,$answers[0],
229: $formats[0],\@incorrect);
230: my @alphabet=('A'..'Z');
231: if ($target eq 'web') {
232: if ($tag eq 'numericalresponse') {
233: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
234: $result.= '<table border="1"><tr>';
235: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
236: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
237: my $checked='';
238: if ($previous eq $bubble_values[$ind]) {
239: $checked=" checked='on' ";
240: }
241: $result.='<td><input type="radio" name="HWVAL_'.$id.
242: '" value="'.$bubble_values[$ind].'" '.$checked
243: .' /><b>'.$alphabet[$ind].'</b>: '.
244: $bubble_values[$ind].'</td>';
245: }
246: $result.='</tr></table>';
247: } elsif ($tag eq 'formularesponse') {
248: $result.= '<br /><br /><font color="red">
249: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
250: </textarea></font> <br /><br />';
251: }
252: } elsif ($target eq 'tex') {
253: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
254: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
255: }
256: if ($tag eq 'numericalresponse') {
257: my ($celllength,$number_of_tables,@table_range)=
258: &get_table_sizes($number_of_bubbles,\@bubble_values);
259: my $j=0;
260: my $cou=0;
261: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
262: for (my $i=0;$i<$number_of_tables;$i++) {
263: $result.='\vskip -1 mm \noindent \begin{tabular}{';
264: for (my $ind=0;$ind<$table_range[$j];$ind++) {
265: $result.='p{3 mm}p{'.$celllength.' mm}';
266: }
267: $result.='}';
268: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
269: $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_values[$ind].'} ';
270: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
271: }
272: $cou += $table_range[$j];
273: $j++;
274: $result.='\\\\\end{tabular}\vskip 0 mm ';
275: }
276: $result.='\end{enumerate}';
277: } else {
278: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
279: my $repetition = &Apache::response::repetition();
280: $result.='\begin{enumerate}';
281: for (my $i=0;$i<$repetition;$i++) {
282: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
283: }
284: $increment=$repetition;
285: $result.= '\end{enumerate}';
286: }
287: }
288: }
289: } elsif ($target eq 'edit') {
290: $result.='</td></tr>'.&Apache::edit::end_table;
291: } elsif ($target eq 'answer' || $target eq 'analyze') {
292:
293: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
294: if ($target eq 'analyze') {
295: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
296: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
297: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
298: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
299: }
300: if (scalar(@$tagstack)) {
301: &Apache::response::setup_params($tag);
302: }
303: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
304: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
305: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
306: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
307:
308: if ($target eq 'answer') {
309: $result.=&Apache::response::answer_header($tag);
310: }
311: for(my $i=0;$i<=$#answers;$i++) {
312: my $ans=$answers[$i];
313: my $fmt=$formats[0];
314: if (@formats && $#formats) {$fmt=$formats[$i];}
315: my ($high,$low);
316: if ($Apache::inputtags::params{'tol'}) {
317: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
318: }
319: my ($sighigh,$siglow);
320: if ($Apache::inputtags::params{'sig'}) {
321: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
322: }
323: if ($fmt && $tag eq 'numericalresponse') {
324: $fmt=~s/e/E/g;
325: $ans = sprintf('%.'.$fmt,$ans);
326: if ($high) {
327: $high=sprintf('%.'.$fmt,$high);
328: $low =sprintf('%.'.$fmt,$low);
329: }
330: }
331: if ($target eq 'answer') {
332: if ($high && $tag eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
333: if ($sighigh && $tag eq 'numericalresponse') {
334: if ($ENV{'form.answer_output_mode'} eq 'tex') {
335: $ans.= " Sig $siglow - $sighigh";
336: } else {
337: $ans.= " Sig <i>$siglow - $sighigh</i>";
338: }
339: }
340: $result.=&Apache::response::answer_part($tag,$ans);
341: } elsif ($target eq 'analyze') {
342: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
343: if ($high) {
344: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
345: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
346: }
347: }
348: }
349: if (defined($unit) and ($unit ne '') and
350: $tag eq 'numericalresponse') {
351: if ($target eq 'answer') {
352: if ($ENV{'form.answer_output_mode'} eq 'tex') {
353: $result.=&Apache::response::answer_part($tag,
354: " Unit: $unit ");
355: } else {
356: $result.=&Apache::response::answer_part($tag,
357: "Unit: <b>$unit</b>");
358: }
359: } elsif ($target eq 'analyze') {
360: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
361: }
362: }
363: if ($tag eq 'formularesponse' && $target eq 'answer') {
364: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
365: $result.=&Apache::response::answer_part($tag,$samples);
366: }
367: if ($target eq 'answer') {
368: $result.=&Apache::response::answer_footer($tag);
369: }
370: }
371: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
372: $target eq 'tex' || $target eq 'analyze') {
373: &Apache::lonxml::increment_counter($increment);
374: }
375: &Apache::response::end_response;
376: return $result;
377: }
378:
379: sub get_table_sizes {
380: my ($number_of_bubbles,$rbubble_values)=@_;
381: my $scale=2; #mm for one digit
382: my $cell_width=0;
383: foreach my $member (@$rbubble_values) {
384: my $cell_width_real=0;
385: if ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
386: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
387: } elsif ($member=~/(\d*)\.?(\d*)/) {
388: $cell_width_real=(length($1)+length($2)+2)*$scale;
389: } else {
390: $cell_width_real=(length($member)+1)*$scale;
391: }
392: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
393: }
394: $cell_width+=8;
395: $ENV{'form.textwidth'}=~/(\d+)/;
396: my $textwidth=$1;
397: my $bubbles_per_line=int($textwidth/$cell_width);
398: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
399: my @table_range = ();
400: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
401: if ($number_of_bubbles % $bubbles_per_line) {
402: $number_of_tables++;
403: push @table_range,($number_of_bubbles % $bubbles_per_line);
404: }
405: $cell_width-=8;
406: return ($cell_width,$number_of_tables,@table_range);
407: }
408:
409: sub format_number {
410: my ($number,$format,$target)=@_;
411: my $ans;
412: if ($format ne '') {
413: $format=~s/e/E/g;
414: $ans = sprintf('%.'.$format,$number);
415: } else {
416: my $format = '';
417: #What is the number? (integer,decimal,floating point)
418: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
419: $format = '3e';
420: } elsif ($number=~/^(\d*)\.(\d*)$/) {
421: $format = '4f';
422: } elsif ($number=~/^(\d*)$/) {
423: $format = 'd';
424: }
425: $ans = sprintf('%.'.$format,$number);
426: }
427: if ($target eq 'tex') {
428: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
429: my $number = $1;
430: my $power = $2;
431: $power=~s/^\+//;
432: $power=~s/^(-?)0+(\d+)/$1$2/;
433: $ans=$number.'$\times 10^{'.$power.'}$'; #'stupidemacs
434: }
435: }
436: return $ans;
437: }
438:
439: sub make_numerical_bubbles {
440: my ($number_of_bubbles,$target,$answer,$format,$incorrect) =@_;
441: my @bubble_values = ();
442: &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
443: my @oldseed=&Math::Random::random_get_seed();
444: if (defined($incorrect) && ref($incorrect)) {
445: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
446: if (defined($$incorrect[0]) &&
447: scalar(@$incorrect)+1 >= $number_of_bubbles) {
448: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
449: &Apache::response::setrandomnumber();
450: my @rand_inc=&Math::Random::random_permutation(@$incorrect);
451: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
452: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
453: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
454: &Math::Random::random_set_seed(@oldseed);
455: return @bubble_values;
456: }
457: if (defined($$incorrect[0]) &&
458: scalar(@$incorrect)+1 < $number_of_bubbles) {
459: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them.");
460: }
461: }
462: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
463: my @powers = (1..$number_of_bubbles);
464: &Apache::response::setrandomnumber();
465: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
466: my $power = $powers[$ind];
467: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
468: my $factor = $factors[$ind];
469: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
470: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
471: $bubble_values[$ind] = &format_number($bubble_values[$ind],
472: $format,$target);
473:
474: }
475: &Math::Random::random_set_seed(@oldseed);
476: return @bubble_values;
477: }
478:
479: sub get_tolrange {
480: my ($ans,$tol)=@_;
481: my ($high,$low);
482: if ($tol =~ /%$/) {
483: chop($tol);
484: my $change=$ans*($tol/100.0);
485: $high=$ans+$change;
486: $low=$ans-$change;
487: } else {
488: $high=$ans+$tol;
489: $low=$ans-$tol;
490: }
491: return ($high,$low);
492: }
493:
494: sub get_sigrange {
495: my ($sig)=@_;
496: &Apache::lonxml::debug("Got a sig of :$sig:");
497: my $sig_lbound;
498: my $sig_ubound;
499: if ($sig eq '') {
500: $sig_lbound = 0; #SIG_LB_DEFAULT
501: $sig_ubound =15; #SIG_UB_DEFAULT
502: } else {
503: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
504: if (!$sig_lbound) {
505: $sig_lbound = 0; #SIG_LB_DEFAULT
506: $sig_ubound =15; #SIG_UB_DEFAULT
507: }
508: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
509: }
510: return ($sig_ubound,$sig_lbound);
511: }
512:
513: sub start_stringresponse {
514: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
515: my $result;
516: my $id = &Apache::response::start_response($parstack,$safeeval);
517: if ($target eq 'meta') {
518: &Apache::response::start_response($parstack,$safeeval);
519: $result=&Apache::response::meta_package_write('stringresponse');
520: &Apache::response::end_response();
521: } elsif ($target eq 'edit') {
522: $result.=&Apache::edit::tag_start($target,$token);
523: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
524: $result.=&Apache::edit::select_arg('Type:','type',
525: [['cs','Case Sensitive'],['ci','Case Insensitive'],
526: ['mc','Case Insensitive, Any Order'],
527: ['re','Regular Expression']],$token);
528: $result.=&Apache::edit::checked_arg('Answer Display:','answerdisplay',
529: [['inline','Inline']],$token);
530: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
531: } elsif ($target eq 'modified') {
532: &Apache::edit::get_new_args($token,$parstack,
533: $safeeval,'answer','type');
534: my $answerdisplay=$ENV{'form.'.&Apache::edit::html_element_name('answerdisplay')};
535: if ($answerdisplay) {
536: $token->[2]->{'answerdisplay'}=$answerdisplay;
537: } else {
538: delete $token->[2]->{'answerdisplay'};
539: }
540: $result = &Apache::edit::rebuild_tag($token);
541: $result.=&Apache::edit::handle_insert();
542: } elsif ($target eq 'answer' || $target eq 'grade') {
543: &Apache::response::reset_params();
544: }
545: return $result;
546: }
547:
548: sub end_stringresponse {
549: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
550: my $increment=1;
551: my $result = '';
552: my $part=$Apache::inputtags::part;
553: my $id=$Apache::inputtags::response[-1];
554: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
555: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
556: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
557: &Apache::lonxml::debug("current $answer ".$token->[2]);
558: if (!$Apache::lonxml::default_homework_loaded) {
559: &Apache::lonxml::default_homework_load($safeeval);
560: }
561: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
562: &Apache::response::setup_params('stringresponse');
563: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
564: if ($Apache::lonhomework::type eq 'exam' ||
565: $ENV{'form.submitted'} eq 'scantron') {
566: $increment=&Apache::response::scored_response($part,$id);
567: } else {
568: my $response = &Apache::response::getresponse();
569: if ( $response =~ /[^\s]/) {
570: my %previous = &Apache::response::check_for_previous($response,
571: $part,$id);
572: &Apache::lonxml::debug("submitted a $response<br>\n");
573: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
574:
575: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
576: $response;
577: my $ad;
578: if ($type eq 're' ) {
579: # if the RE wasn't in a var it likely got munged,
580: # thus grab it from the var directly
581: # my $testans=$token->[2]->{'answer'};
582: # if ($testans !~ m/^\s*\$/) {
583: # $answer=$token->[2]->{'answer'};
584: # }
585: ${$safeeval->varglob('LONCAPA_INTERNAL_response')}=
586: $response;
587: $result = &Apache::run::run('return $LONCAPA_INTERNAL_response=~m'.$answer,$safeeval);
588: &Apache::lonxml::debug("current $response");
589: &Apache::lonxml::debug("current $answer");
590: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
591: } else {
592: $response =~ s/\\/\\\\/g;
593: $response =~ s/\'/\\\'/g;
594: &Apache::lonxml::debug("current $response");
595: my $expression="&caparesponse_check_list('".$response."','".
596: $$parstack[-1];
597: foreach my $key (keys(%Apache::inputtags::params)) {
598: $expression.= ';my $'. #'
599: $key.'="'.$Apache::inputtags::params{$key}.'"';
600: }
601: $expression.="');";
602: &Apache::lonxml::debug('answer is'.join(':',$answer));
603: @{$safeeval->varglob('CAPARESPONSE_CHECK_LIST_answer')}=($answer);
604: $result = &Apache::run::run($expression,$safeeval);
605: my ($awards) = split /:/ , $result;
606: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
607: &Apache::lonxml::debug("$expression");
608: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
609: }
610: &Apache::response::handle_previous(\%previous,$ad);
611: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
612: }
613: }
614: } elsif ($target eq 'web' || $target eq 'tex') {
615: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
616: my $status = $Apache::inputtags::status['-1'];
617: if ( &Apache::response::show_answer() ) {
618: if ($target eq 'web') {
619: $result=($answerdisplay eq 'inline'?'':"<br />".&mt('The correct answer is')." ")
620: .$answer;
621: # join(', ',@answers).".<br />";
622: }
623: }
624: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
625: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
626: $increment = &Apache::response::repetition();
627: $result.='\begin{enumerate}';
628: for (my $i=0;$i<$increment;$i++) {
629: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
630: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
631: }
632: $result.= '\end{enumerate}';
633: }
634: } elsif ($target eq 'answer' || $target eq 'analyze') {
635: if ($target eq 'analyze') {
636: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
637: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
638: }
639: &Apache::response::setup_params('stringresponse');
640: if ($target eq 'answer') {
641: $result.=&Apache::response::answer_header('stringresponse');
642: }
643: # foreach my $ans (@answers) {
644: if ($target eq 'answer') {
645: $result.=&Apache::response::answer_part('stringresponse',$answer);
646: } elsif ($target eq 'analyze') {
647: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
648: $answer);
649: }
650: # }
651: my $string='Case Insensitive';
652: if ($type eq 'mc') {
653: $string='Multiple Choice';
654: } elsif ($type eq 'cs') {
655: $string='Case Sensitive';
656: } elsif ($type eq 'ci') {
657: $string='Case Insensitive';
658: } elsif ($type eq 're') {
659: $string='Regular Expression';
660: }
661: if ($target eq 'answer') {
662: if ($ENV{'form.answer_output_mode'} eq 'tex') {
663: $result.=&Apache::response::answer_part('stringresponse',
664: "$string");
665: } else {
666: $result.=&Apache::response::answer_part('stringresponse',
667: "<b>$string</b>");
668: }
669: } elsif ($target eq 'analyze') {
670: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
671: $type);
672: }
673: if ($target eq 'answer') {
674: $result.=&Apache::response::answer_footer('stringresponse');
675: }
676: } elsif ($target eq 'edit') {
677: $result.='</td></tr>'.&Apache::edit::end_table;
678: }
679: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
680: $target eq 'tex' || $target eq 'analyze') {
681: &Apache::lonxml::increment_counter($increment);
682: }
683: &Apache::response::end_response;
684: return $result;
685: }
686:
687: sub start_formularesponse {
688: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
689: my $result;
690: if ($target eq 'meta') {
691: &Apache::response::start_response($parstack,$safeeval);
692: $result=&Apache::response::meta_package_write('formularesponse');
693: &Apache::response::end_response();
694: } else {
695: $result.=&start_numericalresponse(@_);
696: }
697: return $result;
698: }
699:
700: sub end_formularesponse {
701: return end_numericalresponse(@_);
702: }
703:
704: 1;
705: __END__
706:
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