1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.107.2.3 2003/10/15 21:26:46 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: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
46: &Apache::loncommon::help_open_topic('Physical_Units');
47: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
48: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
49: } elsif ($token->[1] eq 'stringresponse') {
50: $result.=&Apache::edit::select_arg('Type:','type',
51: [['cs','Case Sensitive'],['ci','Case Insensitive'],
52: ['mc','Case Insensitive, Any Order']],$token);
53: } elsif ($token->[1] eq 'formularesponse') {
54: $result.=&Apache::edit::text_arg('Sample Points:','samples',
55: $token,40).
56: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
57: }
58: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
59: } elsif ($target eq 'modified') {
60: my $constructtag;
61: if ($token->[1] eq 'numericalresponse') {
62: $constructtag=&Apache::edit::get_new_args($token,$parstack,
63: $safeeval,'answer',
64: 'unit','format');
65: } elsif ($token->[1] eq 'stringresponse') {
66: $constructtag=&Apache::edit::get_new_args($token,$parstack,
67: $safeeval,'answer',
68: 'type');
69: } elsif ($token->[1] eq 'formularesponse') {
70: $constructtag=&Apache::edit::get_new_args($token,$parstack,
71: $safeeval,'answer',
72: 'samples');
73: }
74: if ($constructtag) {
75: $result = &Apache::edit::rebuild_tag($token);
76: $result.=&Apache::edit::handle_insert();
77: }
78: } elsif ($target eq 'meta') {
79: $result=&Apache::response::meta_package_write('numericalresponse');
80: } elsif ($target eq 'answer' || $target eq 'grade') {
81: &Apache::response::reset_params();
82: } elsif ($target eq 'web') {
83: my $partid = $Apache::inputtags::part;
84: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
85: &Apache::lonxml::debug("Got unit $hideunit for $partid $id");
86: #no way to enter units, with radio buttons
87: if (lc($hideunit) eq "yes") {
88: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
89: $safeeval);
90: if ($unit =~ /\S/) { $result.=" (in $unit) "; }
91: }
92: }
93: return $result;
94: }
95:
96: sub end_numericalresponse {
97: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
98: my $increment=1;
99: my $result = '';
100: if (!$Apache::lonxml::default_homework_loaded) {
101: &Apache::lonxml::default_homework_load($safeeval);
102: }
103: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
104: &Apache::response::setup_params($$tagstack[-1]);
105: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
106: my $partid = $Apache::inputtags::part;
107: my $id = $Apache::inputtags::response['-1'];
108: if ($Apache::lonhomework::type eq 'exam' &&
109: ($$tagstack[-1] eq 'formularesponse' ||
110: $$tagstack[-1] eq 'stringresponse')) {
111: $increment=&Apache::response::scored_response($partid,$id);
112: } else {
113: my $response = &Apache::response::getresponse();
114: if ( $response =~ /[^\s]/) {
115: my $ad;
116: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
117: &Apache::lonxml::debug("submitted a $response<br>\n");
118: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
119:
120: if ($ENV{'form.submitted'} eq 'scantron') {
121: my $number_of_bubbles = 8;#default values for number of bubbles
122: my (@formats)=&Apache::lonxml::get_param_var('format',
123: $parstack,$safeeval);
124: my (@answers)=&Apache::lonxml::get_param_var('answer',
125: $parstack,$safeeval);
126: my @values=&make_numerical_bubbles($number_of_bubbles,$target,
127: $answers[0],$formats[0]);
128: $response=$values[$response];
129: } else {
130: $response =~ s/\\/\\\\/g;
131: $response =~ s/\'/\\\'/g;
132: }
133: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
134: &Apache::lonxml::debug("current $response");
135: my $expression="&caparesponse_check_list('".$response."','".
136: $$parstack[-1];
137: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
138: #no way to enter units, with radio buttons
139: if ($Apache::lonhomework::type eq 'exam' ||
140: lc($hideunit) eq "yes") {
141: $expression.=';my $unit=undef;';
142: }
143: foreach my $key (keys(%Apache::inputtags::params)) {
144: $expression.= ';my $'. #'
145: $key.'="'.$Apache::inputtags::params{$key}.'"';
146: }
147: if ($$tagstack[-1] eq 'formularesponse') {
148: $expression.=';my $type="fml";';
149: } elsif ($$tagstack[-1] eq 'numericalresponse') {
150: $expression.=';my $type="float";';
151: }
152: $expression.="');";
153: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
154: &Apache::lonxml::debug('answer is'.join(':',@answer));
155: @{$safeeval->varglob('CAPARESPONSE_CHECK_LIST_answer')}=@answer;
156:
157: $result = &Apache::run::run($expression,$safeeval);
158: my ($awards) = split /:/ , $result;
159: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
160: &Apache::lonxml::debug("$expression");
161: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
162: &Apache::response::handle_previous(\%previous,$ad);
163: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
164: $result='';
165: }
166: }
167: } elsif ($target eq 'web' || $target eq 'tex') {
168: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
169: $safeeval);
170: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
171: my $status = $Apache::inputtags::status['-1'];
172: if ( &Apache::response::show_answer() ) {
173: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
174: $safeeval);
175: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
176: $safeeval);
177: if ($target eq 'web') {
178: $result="<br />The correct answer is ";
179: } elsif ($target eq 'tex') {
180: if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {
181: $result='\vskip 0 mm The correct answer is \\texttt{ ';
182: }
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: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
195: $formatted=sprintf('%.'.$format,$answer).',';
196: } else {
197: &Apache::lonxml::debug("no format answer :$answer:");
198: $formatted="$answer,";
199: }
200: if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {
201: $result.=$formatted;
202: }
203: if ($target eq 'tex') {
204: $formatted='';
205: #$formatted=&Apache::lonxml::latex_special_symbols($formatted);
206: }
207: $result.=$formatted;
208: }
209: chop $result;
210: if ($target eq 'web') {
211: $result.=" $unit.<br />";
212: } elsif ($target eq 'tex') {
213: if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {
214: $result.=&Apache::lonxml::latex_special_symbols($unit);
215: $result.="}. \\vskip 0 mm ";
216: }
217: }
218: }
219: if ($Apache::lonhomework::type eq 'exam') {
220: my $number_of_bubbles = 8; #default values for number of bubbles
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 @bubble_values=&make_numerical_bubbles($number_of_bubbles,
226: $target,$answers[0],
227: $formats[0]);
228: my @alphabet=('A'..'Z');
229: my $id=$Apache::inputtags::response[-1];
230: if ($target eq 'web') {
231: if ($$tagstack[-1] 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 ($$tagstack[-1] eq 'formularesponse') {
247: $result.= '<br /><br /><font color="red">
248: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
249: </textarea></font> <br /><br />';
250: }
251: } elsif ($target eq 'tex') {
252: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
253: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
254: }
255: if ($$tagstack[-1] eq 'numericalresponse') {
256: my ($celllength,$number_of_tables,@table_range)=
257: &get_table_sizes($formats[0],$number_of_bubbles);
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: $result.='lp{'.$celllength.' mm}';
265: }
266: $result.='}';
267: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
268: $result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$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"} = $$tagstack[-1];
296: }
297: &Apache::response::setup_params($$tagstack[-1]);
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($$tagstack[-1]);
305: }
306: for(my $i=0;$i<=$#answers;$i++) {
307: my $ans=$answers[$i];
308: my $fmt=$formats[0];
309: if (@formats && $#formats) {$fmt=$formats[$i];}
310: my ($high,$low);
311: if ($Apache::inputtags::params{'tol'}) {
312: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
313: }
314: my ($sighigh,$siglow);
315: if ($Apache::inputtags::params{'sig'}) {
316: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
317: }
318: if ($fmt && $$tagstack[-1] eq 'numericalresponse') {
319: $ans = sprintf('%.'.$fmt,$ans);
320: if ($high) {
321: $high=sprintf('%.'.$fmt,$high);
322: $low =sprintf('%.'.$fmt,$low);
323: }
324: }
325: if ($target eq 'answer') {
326: if ($high && $$tagstack[-1] eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
327: if ($sighigh && $$tagstack[-1] eq 'numericalresponse') {
328: if ($ENV{'form.answer_output_mode'} eq 'tex') {
329: $ans.= " Sig $siglow - $sighigh";
330: } else {
331: $ans.= " Sig <i>$siglow - $sighigh</i>";
332: }
333: }
334: $result.=&Apache::response::answer_part($$tagstack[-1],$ans);
335: } elsif ($target eq 'analyze') {
336: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
337: if ($high) {
338: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
339: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
340: }
341: }
342: }
343: if (defined($unit) and ($unit ne '') and
344: $$tagstack[-1] eq 'numericalresponse') {
345: if ($target eq 'answer') {
346: if ($ENV{'form.answer_output_mode'} eq 'tex') {
347: $result.=&Apache::response::answer_part($$tagstack[-1],
348: " Unit: $unit ");
349: } else {
350: $result.=&Apache::response::answer_part($$tagstack[-1],
351: "Unit: <b>$unit</b>");
352: }
353: } elsif ($target eq 'analyze') {
354: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
355: }
356: }
357: if ($type || $$tagstack[-1] eq 'stringresponse') {
358: my $string='Case Insensitive';
359: if ($type eq 'mc') {
360: $string='Multiple Choice';
361: } elsif ($type eq 'cs') {
362: $string='Case Sensitive';
363: } elsif ($type eq 'ci') {
364: $string='Case Insensitive';
365: } elsif ($type eq 'fml') {
366: $string='Formula';
367: }
368: if ($target eq 'answer') {
369: if ($ENV{'form.answer_output_mode'} eq 'tex') {
370: $result.=&Apache::response::answer_part($$tagstack[-1],
371: "\\textbf{$string}");
372: } else {
373: $result.=&Apache::response::answer_part($$tagstack[-1],
374: "<b>$string</b>");
375: }
376: } elsif ($target eq 'analyze') {
377: push (@{ $Apache::lonhomework::analyze{"$part_id.str_type"} },
378: $type);
379: }
380: }
381: if ($$tagstack[-1] eq 'formularesponse' && $target eq 'answer') {
382: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
383: $result.=&Apache::response::answer_part($$tagstack[-1],$samples);
384: }
385: if ($target eq 'answer') {
386: $result.=&Apache::response::answer_footer($$tagstack[-1]);
387: }
388: }
389: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
390: $target eq 'tex' || $target eq 'analyze') {
391: &Apache::lonxml::increment_counter($increment);
392: }
393: &Apache::response::end_response;
394: return $result;
395: }
396:
397: sub get_table_sizes {
398: my ($format,$number_of_bubbles)=@_;
399: my $max_val = 0;
400: if ($format=~m/^(\d+)E([^\d]*)(\d*)$/) {
401: $max_val=$1+$2+4;
402: } else {
403: $max_val=4;
404: }
405: $max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));
406: my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;
407: my @table_range = ();
408: my $number_of_tables = int($number_of_bubbles/$max_val);
409: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
410: if ($number_of_bubbles % $max_val != 0) {
411: $number_of_tables++;
412: push @table_range,($number_of_bubbles % $max_val);
413: }
414: return ($celllength,$number_of_tables,@table_range);
415: }
416:
417: sub format_number {
418: my ($number,$format,$target)=@_;
419: my $ans;
420: if ($format ne '') {
421: $ans = sprintf('%.'.$format,$number);
422: } else {
423: my $format = '';
424: #What is the number? (integer,decimal,floating point)
425: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
426: $format = 'e'.$2;
427: } elsif ($number=~/^(\d*)\.(\d*)$/) {
428: $format = '4f';
429: } elsif ($number=~/^(\d*)$/) {
430: $format = 'd';
431: }
432: $ans = sprintf('%.'.$format,$number);
433: }
434: if ($target eq 'tex') {
435: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
436: my $number = $1;
437: my $power = $2;
438: $power=~s/^\+//;
439: $power=~s/^(-?)0+(\d+)//;
440: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
441: }
442: }
443: return $ans;
444: }
445:
446: sub make_numerical_bubbles {
447: my ($number_of_bubbles,$target,$answer,$format) =@_;
448: my @bubble_values = ();
449: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
450: my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
451: &Apache::response::setrandomnumber();
452: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
453: my $power = $powers[$ind];
454: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
455: my $factor = $factors[$ind];
456: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
457: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
458: $bubble_values[$ind] = &format_number($bubble_values[$ind],
459: $format,$target);
460:
461: }
462: return @bubble_values;
463: }
464:
465: sub get_tolrange {
466: my ($ans,$tol)=@_;
467: my ($high,$low);
468: if ($tol =~ /%$/) {
469: chop($tol);
470: my $change=$ans*($tol/100.0);
471: $high=$ans+$change;
472: $low=$ans-$change;
473: } else {
474: $high=$ans+$tol;
475: $low=$ans-$tol;
476: }
477: return ($high,$low);
478: }
479:
480: sub get_sigrange {
481: my ($sig)=@_;
482: &Apache::lonxml::debug("Got a sig of :$sig:");
483: my $sig_lbound;
484: my $sig_ubound;
485: if ($sig eq '') {
486: $sig_lbound = 0; #SIG_LB_DEFAULT
487: $sig_ubound =15; #SIG_UB_DEFAULT
488: } else {
489: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
490: if (!$sig_lbound) {
491: $sig_lbound = 0; #SIG_LB_DEFAULT
492: $sig_ubound =15; #SIG_UB_DEFAULT
493: }
494: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
495: }
496: return ($sig_ubound,$sig_lbound);
497: }
498:
499: sub start_stringresponse {
500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
501: my $result;
502: if ($target eq 'meta') {
503: &Apache::response::start_response($parstack,$safeeval);
504: $result=&Apache::response::meta_package_write('stringresponse');
505: &Apache::response::end_response();
506: } else {
507: $result.=&start_numericalresponse(@_);
508: }
509: return $result;
510: }
511:
512: sub end_stringresponse {
513: return end_numericalresponse(@_);
514: }
515:
516: sub start_formularesponse {
517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
518: my $result;
519: if ($target eq 'meta') {
520: &Apache::response::start_response($parstack,$safeeval);
521: $result=&Apache::response::meta_package_write('formularesponse');
522: &Apache::response::end_response();
523: } else {
524: $result.=&start_numericalresponse(@_);
525: }
526: return $result;
527: }
528:
529: sub end_formularesponse {
530: return end_numericalresponse(@_);
531: }
532:
533: 1;
534: __END__
535:
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