1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.97 2003/05/09 22:24:05 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: $$tagstack[-1] eq 'stringresponse')) {
111: $increment=&Apache::response::scored_response($partid,$id);
112: } else {
113: my $response = &Apache::response::getresponse();
114: if ( $response =~ /[^\s]/) {
115: my $ad;
116: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
117: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
118: &Apache::lonxml::debug("submitted a $response<br>\n");
119: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
120:
121: if ($ENV{'form.submitted'} eq 'scantron') {
122: my $number_of_bubbles = 8;#default values for number of bubbles
123: my (@formats)=&Apache::lonxml::get_param_var('format',
124: $parstack,$safeeval);
125: my (@answers)=&Apache::lonxml::get_param_var('answer',
126: $parstack,$safeeval);
127: my @values=&make_numerical_bubbles($number_of_bubbles,$target,
128: $answers[0],$formats[0]);
129: $response=$values[$response];
130: } else {
131: $response =~ s/\\/\\\\/g;
132: $response =~ s/\'/\\\'/g;
133: }
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: $result = &Apache::run::run($expression,$safeeval);
154: my ($awards) = split /:/ , $result;
155: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
156: &Apache::lonxml::debug("$expression");
157: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
158: &Apache::response::handle_previous(\%previous,$ad);
159: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
160: $result='';
161: }
162: }
163: } elsif ($target eq 'web' || $target eq 'tex') {
164: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
165: $safeeval);
166: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
167: my $status = $Apache::inputtags::status['-1'];
168: if ( ($award =~ /^correct/
169: && lc($Apache::lonhomework::problemstatus) ne 'no')
170: || $status eq "SHOW_ANSWER"
171: || $ENV{'form.texaward'} eq 'SHOW_ANSWER') {
172: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
173: $safeeval);
174: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
175: $safeeval);
176: if ($target eq 'web') {
177: $result="<br />The correct answer is ";
178: } elsif ($target eq 'tex') {
179: if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {
180: $result='\vskip 0 mm The correct answer is \\texttt{ ';
181: }
182: }
183: for (my $i=0; $i <= $#answers; $i++) {
184: my $answer=$answers[$i];
185: my $format;
186: if ($#formats > 0) {
187: $format=$formats[$i];
188: } else {
189: $format=$formats[0];
190: }
191: my $formatted;
192: if ((defined($format)) && ($format ne '')) {
193: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
194: $formatted=sprintf('%.'.$format,$answer).',';
195: } else {
196: &Apache::lonxml::debug("no format answer :$answer:");
197: $formatted="$answer,";
198: }
199: if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {
200: $result.=$formatted;
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: } elsif ($target eq 'tex') {
212: if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {
213: $result.=&Apache::lonxml::latex_special_symbols($unit);
214: $result.="}. \\vskip 0 mm ";
215: }
216: }
217: }
218: if ($Apache::lonhomework::type eq 'exam') {
219: my $number_of_bubbles = 8; #default values for number of bubbles
220: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
221: $safeeval);
222: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
223: $safeeval);
224: my @bubble_values=&make_numerical_bubbles($number_of_bubbles,
225: $target,$answers[0],
226: $formats[0]);
227: my @alphabet=('A'..'Z');
228: my $id=$Apache::inputtags::response[-1];
229: if ($target eq 'web') {
230: if ($$tagstack[-1] eq 'numericalresponse') {
231: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
232: $result.= '<table border="1"><tr>';
233: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
234: $result.='<td><input type="radio" name="HWVAL_'.$id.
235: '" value="'.$bubble_values[$ind].'"><b>'.
236: $alphabet[$ind].'</b>: '.
237: $bubble_values[$ind].'</td>';
238: }
239: $result.='</tr></table>';
240: } elsif ($$tagstack[-1] eq 'formularesponse') {
241: $result.= '<br /><br /><font color="red">
242: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
243: </textarea></font> <br /><br />';
244: }
245: } elsif ($target eq 'tex') {
246: if (defined $unit and $Apache::lonhomework::type eq 'exam') {
247: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
248: }
249: if ($$tagstack[-1] eq 'numericalresponse') {
250: my ($celllength,$number_of_tables,@table_range)=
251: &get_table_sizes($formats[0],$number_of_bubbles);
252: my $j=0;
253: my $cou=0;
254: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
255: for (my $i=0;$i<$number_of_tables;$i++) {
256: $result.='\vskip -1 mm \noindent \begin{tabular}{';
257: for (my $ind=0;$ind<$table_range[$j];$ind++) {
258: $result.='lp{'.$celllength.' mm}';
259: }
260: $result.='}';
261: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
262: $result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$bubble_values[$ind].'} ';
263: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
264: }
265: $cou += $table_range[$j];
266: $j++;
267: $result.='\\\\\end{tabular}\vskip 0 mm ';
268: }
269: $result.='\end{enumerate}';
270: } else {
271: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
272: my $repetition = &Apache::response::repetition();
273: $result.='\begin{enumerate}';
274: for (my $i=0;$i<$repetition;$i++) {
275: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
276: }
277: $increment=$repetition;
278: $result.= '\end{enumerate}';
279: }
280: }
281: }
282: } elsif ($target eq 'edit') {
283: $result.='</td></tr>'.&Apache::edit::end_table;
284: } elsif ($target eq 'answer' || $target eq 'analyze') {
285:
286: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
287: if ($target eq 'analyze') {
288: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
289: $Apache::lonhomework::analyze{"$part_id.type"} = $$tagstack[-1];
290: }
291: &Apache::response::setup_params($$tagstack[-1]);
292: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
293: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
294: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
295: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
296:
297: if ($target eq 'answer') {
298: $result.=&Apache::response::answer_header($$tagstack[-1]);
299: }
300: for(my $i=0;$i<=$#answers;$i++) {
301: my $ans=$answers[$i];
302: my $fmt=$formats[0];
303: if (@formats && $#formats) {$fmt=$formats[$i];}
304: my ($high,$low);
305: if ($Apache::inputtags::params{'tol'}) {
306: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
307: }
308: my ($sighigh,$siglow);
309: if ($Apache::inputtags::params{'sig'}) {
310: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
311: }
312: if ($fmt) {
313: $ans = sprintf('%.'.$fmt,$ans);
314: if ($high) {
315: $high=sprintf('%.'.$fmt,$high);
316: $low =sprintf('%.'.$fmt,$low);
317: }
318: }
319: if ($target eq 'answer') {
320: if ($high) { $ans.=' ['.$low.','.$high.']'; }
321: if ($sighigh) { $ans.= " Sig <i>$siglow - $sighigh</i>"; }
322: $result.=&Apache::response::answer_part($$tagstack[-1],$ans);
323: } elsif ($target eq 'analyze') {
324: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
325: if ($high) {
326: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
327: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
328: }
329: }
330: }
331: if ($unit) {
332: if ($target eq 'answer') {
333: $result.=&Apache::response::answer_part($$tagstack[-1],
334: "Unit: <b>$unit</b>");
335: } elsif ($target eq 'analyze') {
336: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} },
337: $unit);
338: }
339: }
340: if ($type || $token->[1] eq 'stringresponse') {
341: my $string='Case Insensitive';
342: if ($type eq 'mc') {
343: $string='Multiple Choice';
344: } elsif ($type eq 'cs') {
345: $string='Case Sensitive';
346: } elsif ($type eq 'ci') {
347: $string='Case Insensitive';
348: } elsif ($type eq 'fml') {
349: $string='Formula';
350: }
351: if ($target eq 'answer') {
352: $result.=&Apache::response::answer_part($$tagstack[-1],
353: '<b>'.$string.'</b>');
354: } elsif ($target eq 'analyze') {
355: push (@{ $Apache::lonhomework::analyze{"$part_id.type"} },
356: $type);
357: }
358: }
359: if ($$tagstack[-1] eq 'formularesponse' && $target eq 'answer') {
360: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
361: $result.=&Apache::response::answer_part($$tagstack[-1],$samples);
362: }
363: if ($target eq 'answer') {
364: $result.=&Apache::response::answer_footer($$tagstack[-1]);
365: }
366: }
367: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
368: $target eq 'tex' || $target eq 'analyze') {
369: &Apache::lonxml::increment_counter($increment);
370: }
371: &Apache::response::end_response;
372: return $result;
373: }
374:
375: sub get_table_sizes {
376: my ($format,$number_of_bubbles)=@_;
377: my $max_val = 0;
378: if ($format=~m/^(\d+)E([^\d]*)(\d*)$/) {
379: $max_val=$1+$2+4;
380: } else {
381: $max_val=4;
382: }
383: $max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));
384: my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;
385: my @table_range = ();
386: my $number_of_tables = int($number_of_bubbles/$max_val);
387: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
388: if ($number_of_bubbles % $max_val != 0) {
389: $number_of_tables++;
390: push @table_range,($number_of_bubbles % $max_val);
391: }
392: return ($celllength,$number_of_tables,@table_range);
393: }
394:
395: sub format_number {
396: my ($number,$format,$target)=@_;
397: my $ans;
398: if ($format ne '') {
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 = 'e'.$2;
405: } elsif ($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+)//;
418: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
419: }
420: }
421: return $ans;
422: }
423:
424: sub make_numerical_bubbles {
425: my ($number_of_bubbles,$target,$answer,$format) =@_;
426: my @bubble_values = ();
427: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
428: my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
429: &Apache::response::setrandomnumber();
430: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
431: my $power = $powers[$ind];
432: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
433: my $factor = $factors[$ind];
434: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
435: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
436: $bubble_values[$ind] = &format_number($bubble_values[$ind],
437: $format,$target);
438:
439: }
440: return @bubble_values;
441: }
442:
443: sub get_tolrange {
444: my ($ans,$tol)=@_;
445: my ($high,$low);
446: if ($tol =~ /%$/) {
447: chop($tol);
448: my $change=$ans*($tol/100.0);
449: $high=$ans+$change;
450: $low=$ans-$change;
451: } else {
452: $high=$ans+$tol;
453: $low=$ans-$tol;
454: }
455: return ($high,$low);
456: }
457:
458: sub get_sigrange {
459: my ($sig)=@_;
460: &Apache::lonxml::debug("Got a sig of :$sig:");
461: my $sig_lbound;
462: my $sig_ubound;
463: if ($sig eq '') {
464: $sig_lbound = 0; #SIG_LB_DEFAULT
465: $sig_ubound =15; #SIG_UB_DEFAULT
466: } else {
467: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
468: if (!$sig_lbound) {
469: $sig_lbound = 0; #SIG_LB_DEFAULT
470: $sig_ubound =15; #SIG_UB_DEFAULT
471: }
472: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
473: }
474: return ($sig_ubound,$sig_lbound);
475: }
476:
477: sub start_stringresponse {
478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
479: my $result;
480: if ($target eq 'meta') {
481: $result=&Apache::response::meta_package_write('stringresponse');
482: } else {
483: $result.=&start_numericalresponse(@_);
484: }
485: return $result;
486: }
487:
488: sub end_stringresponse {
489: return end_numericalresponse(@_);
490: }
491:
492: sub start_formularesponse {
493: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
494: my $result;
495: if ($target eq 'meta') {
496: $result=&Apache::response::meta_package_write('formularesponse');
497: } else {
498: $result.=&start_numericalresponse(@_);
499: }
500: return $result;
501: }
502:
503: sub end_formularesponse {
504: return end_numericalresponse(@_);
505: }
506:
507: 1;
508: __END__
509:
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