1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.90 2003/04/08 03:54:22 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: }
83: return $result;
84: }
85:
86: sub end_numericalresponse {
87: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
88: my $increment=1;
89: my $result = '';
90: if (!$Apache::lonxml::default_homework_loaded) {
91: &Apache::lonxml::default_homework_load($safeeval);
92: }
93: if ( $target eq 'grade' && defined $ENV{'form.submitted'}) {
94: &Apache::response::setup_params($$tagstack[-1]);
95: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
96: my $partid = $Apache::inputtags::part;
97: my $id = $Apache::inputtags::response['-1'];
98: my $response = &Apache::response::getresponse();
99: if ( $response =~ /[^\s]/) {
100: my $ad;
101: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
102: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
103: &Apache::lonxml::debug("submitted a $response<br>\n");
104: &Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
105:
106: if ($ENV{'form.submitted'} eq 'scantron') {
107: &Apache::response::setrandomnumber();
108: #FIXME the 8 here is based off of number of powers need a parameter
109: my $ind=&Math::Random::random_uniform_integer(1,0,8);
110: if ($ind eq $response) { $ad='CORRECT'; } else { $ad='INCORRECT'; }
111: }
112: $response =~ s/\\/\\\\/g;
113: $response =~ s/\'/\\\'/g;
114: &Apache::lonxml::debug("current $response");
115: my $expression="&caparesponse_check_list('".$response."','".
116: $$parstack[-1];
117: foreach my $key (keys(%Apache::inputtags::params)) {
118: $expression.= ';my $'. #'
119: $key.'="'.$Apache::inputtags::params{$key}.'"';
120: }
121: if ($$tagstack[-1] eq 'formularesponse') {
122: $expression.=';my $type="fml";';
123: } elsif ($$tagstack[-1] eq 'numericalresponse') {
124: $expression.=';my $type="float";';
125: }
126: $expression.="');";
127: $result = &Apache::run::run($expression,$safeeval);
128: my ($awards) = split /:/ , $result;
129: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
130: &Apache::lonxml::debug("$expression");
131: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
132: &Apache::response::handle_previous(\%previous,$ad);
133: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
134: $result='';
135: }
136: } elsif ($target eq 'web' || $target eq 'tex') {
137: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
138: $safeeval);
139: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
140: my $status = $Apache::inputtags::status['-1'];
141: if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) {
142: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
143: $safeeval);
144: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
145: $safeeval);
146:
147: if ($target eq 'web') {
148: $result="<br />The correct answer is ";
149: } elsif ($target eq 'tex') {
150: #$result='\vskip 0 mm The correct answer is \\texttt{';
151: }
152: for (my $i=0; $i <= $#answers; $i++) {
153: my $answer=$answers[$i];
154: my $format;
155: if ($#formats > 0) {
156: $format=$formats[$i];
157: } else {
158: $format=$formats[0];
159: }
160: my $formatted;
161: if ((defined($format)) && ($format ne '')) {
162: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
163: $formatted=sprintf('%.'.$format,$answer).',';
164: } else {
165: &Apache::lonxml::debug("no format answer :$answer:");
166: $formatted="$answer,";
167: }
168:
169: if ($target eq 'tex') {
170: $formatted='';
171: #$formatted=&Apache::lonxml::latex_special_symbols($formatted);
172: }
173: $result.=$formatted;
174: }
175: chop $result;
176: if ($target eq 'web') {
177: $result.=" $unit.<br />";
178: } elsif ($target eq 'tex') {
179: #$result.=&Apache::lonxml::latex_special_symbols($unit);
180: #$result.="}. \\vskip 0 mm ";
181: }
182: }
183: if ($Apache::lonhomework::type eq 'exam') {
184: my $number_of_bubbles = 8; #default values for number of bubbles
185: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
186: $safeeval);
187: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
188: $safeeval);
189: my @bubble_values=&make_numerical_bubbles($number_of_bubbles,
190: @answers);
191: my @alphabet=('A'..'Z');
192: my $id=$Apache::inputtags::response[-1];
193: if ($target eq 'web') {
194: if ($$tagstack[-1] eq 'numericalresponse') {
195: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
196: $result.= '<table border="1"><tr>';
197: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
198: my $ans=&format_number($bubble_values[$ind],
199: $formats[0]);
200: $result.='<td><input type="radio" name="HWVAL_'.$id.
201: '" value="'.$ans.'"><b>'.$alphabet[$ind].
202: '</b>: '.$ans.'</td>';
203: }
204: $result.='</tr></table>';
205: } elsif ($$tagstack[-1] eq 'formularesponse') {
206: $result.= '<br /><br /><font color="red">
207: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
208: </textarea></font> <br /><br />';
209: }
210: } elsif ($target eq 'tex') {
211: if (defined $unit and $Apache::lonhomework::type eq 'exam') {
212: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
213: }
214: if ($$tagstack[-1] eq 'numericalresponse') {
215: my ($celllength,$number_of_tables,@table_range)=
216: &get_table_sizes($formats[0],$number_of_bubbles);
217: my $j=0;
218: my $cou=0;
219: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
220: for (my $i=0;$i<$number_of_tables;$i++) {
221: $result.='\vskip -1 mm \noindent \begin{tabular}{';
222: for (my $ind=0;$ind<$table_range[$j];$ind++) {
223: $result.='lp{'.$celllength.' mm}';
224: }
225: $result.='}';
226: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
227: my $ans=&format_number($bubble_values[$ind],
228: $formats[0],$target);
229: $result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$ans.'} ';
230: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
231: }
232: $cou += $table_range[$j];
233: $j++;
234: $result.='\\\\\end{tabular}\vskip 0 mm ';
235: }
236: $result.='\end{enumerate}';
237: } else {
238: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
239: my $id = $Apache::inputtags::part;
240: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
241: my $repetition = int $weight/9;
242: if ($weight % 9 != 0) {$repetition++;}
243: $result.='\begin{enumerate}';
244: for (my $i=0;$i<$repetition;$i++) {
245: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
246: }
247: $increment=$repetition;
248: $result.= '\end{enumerate}';
249: }
250: }
251: }
252: } elsif ($target eq 'edit') {
253: $result.='</td></tr>'.&Apache::edit::end_table;
254: } elsif ($target eq 'answer' || $target eq 'analyze') {
255:
256: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
257: if ($target eq 'analyze') {
258: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
259: $Apache::lonhomework::analyze{"$part_id.type"} = $$tagstack[-1];
260: }
261: &Apache::response::setup_params($$tagstack[-1]);
262: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
263: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
264: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
265: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
266:
267: if ($target eq 'answer') {
268: $result.=&Apache::response::answer_header($$tagstack[-1]);
269: }
270: for(my $i=0;$i<=$#answers;$i++) {
271: my $ans=$answers[$i];
272: my $fmt=$formats[0];
273: if (@formats && $#formats) {$fmt=$formats[$i];}
274: my ($high,$low);
275: if ($Apache::inputtags::params{'tol'}) {
276: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
277: }
278: my ($sighigh,$siglow);
279: if ($Apache::inputtags::params{'sig'}) {
280: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
281: }
282: if ($fmt) {
283: $ans = sprintf('%.'.$fmt,$ans);
284: if ($high) {
285: $high=sprintf('%.'.$fmt,$high);
286: $low =sprintf('%.'.$fmt,$low);
287: }
288: }
289: if ($target eq 'answer') {
290: if ($high) { $ans.=' ['.$low.','.$high.']'; }
291: if ($sighigh) { $ans.= " Sig <i>$siglow - $sighigh</i>"; }
292: $result.=&Apache::response::answer_part($$tagstack[-1],$ans);
293: } elsif ($target eq 'analyze') {
294: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
295: if ($high) {
296: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
297: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
298: }
299: }
300: }
301: if ($unit) {
302: if ($target eq 'answer') {
303: $result.=&Apache::response::answer_part($$tagstack[-1],
304: "Unit: <b>$unit</b>");
305: } elsif ($target eq 'analyze') {
306: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} },
307: $unit);
308: }
309: }
310: if ($type || $token->[1] eq 'stringresponse') {
311: my $string='Case Insensitive';
312: if ($type eq 'mc') {
313: $string='Multiple Choice';
314: } elsif ($type eq 'cs') {
315: $string='Case Sensitive';
316: } elsif ($type eq 'ci') {
317: $string='Case Insensitive';
318: } elsif ($type eq 'fml') {
319: $string='Formula';
320: }
321: if ($target eq 'answer') {
322: $result.=&Apache::response::answer_part($$tagstack[-1],
323: '<b>'.$string.'</b>');
324: } elsif ($target eq 'analyze') {
325: push (@{ $Apache::lonhomework::analyze{"$part_id.type"} },
326: $type);
327: }
328: }
329: if ($$tagstack[-1] eq 'formularesponse' && $target eq 'answer') {
330: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
331: $result.=&Apache::response::answer_part($$tagstack[-1],$samples);
332: }
333: if ($target eq 'answer') {
334: $result.=&Apache::response::answer_footer($$tagstack[-1]);
335: }
336: }
337: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
338: $target eq 'tex' || $target eq 'analyze') {
339: &Apache::lonxml::increment_counter($increment);
340: }
341: &Apache::response::end_response;
342: return $result;
343: }
344:
345: sub get_table_sizes {
346: my ($format,$number_of_bubbles)=@_;
347: my $max_val = 0;
348: if ($format=~m/^(\d+)E([^\d]*)(\d*)$/) {
349: $max_val=$1+$2+4;
350: } else {
351: $max_val=4;
352: }
353: $max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));
354: my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;
355: my @table_range = ();
356: my $number_of_tables = int($number_of_bubbles/$max_val);
357: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
358: if ($number_of_bubbles % $max_val != 0) {
359: $number_of_tables++;
360: push @table_range,($number_of_bubbles % $max_val);
361: }
362: return ($celllength,$number_of_tables,@table_range);
363: }
364:
365: sub format_number {
366: my ($number,$format,$target)=@_;
367: my $ans;
368: if ($format ne '') {
369: $ans = sprintf('%.'.$format,$number);
370: } else {
371: my $format = '';
372: #What is the number? (integer,decimal,floating point)
373: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
374: $format = 'e'.$2;
375: } elsif ($number=~/^(\d*)\.(\d*)$/) {
376: $format = '4f';
377: } elsif ($number=~/^(\d*)$/) {
378: $format = 'd';
379: }
380: $ans = sprintf('%.'.$format,$number);
381: }
382: if ($target eq 'tex') {
383: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
384: my $number = $1;
385: my $power = $2;
386: $power=~s/^\+//;
387: $power=~s/^(-?)0+(\d+)//;
388: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
389: }
390: }
391: return $ans;
392: }
393:
394: sub make_numerical_bubbles {
395: my ($number_of_bubbles,@answers) =@_;
396: my @bubbles_values = ();
397: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
398: my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
399: &Apache::response::setrandomnumber();
400: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
401: my $power = $powers[$ind];
402: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
403: my $factor = $factors[$ind];
404: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
405: $bubbles_values[$ind] = $answers[0]*($factor**($power-$powers[$#powers-$ind]));
406: }
407: return @bubbles_values;
408: }
409:
410: sub get_tolrange {
411: my ($ans,$tol)=@_;
412: my ($high,$low);
413: if ($tol =~ /%$/) {
414: chop($tol);
415: my $change=$ans*($tol/100.0);
416: $high=$ans+$change;
417: $low=$ans-$change;
418: } else {
419: $high=$ans+$tol;
420: $low=$ans-$tol;
421: }
422: return ($high,$low);
423: }
424:
425: sub get_sigrange {
426: my ($sig)=@_;
427: &Apache::lonxml::debug("Got a sig of :$sig:");
428: my $sig_lbound;
429: my $sig_ubound;
430: if ($sig eq '') {
431: $sig_lbound = 0; #SIG_LB_DEFAULT
432: $sig_ubound =15; #SIG_UB_DEFAULT
433: } else {
434: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
435: if (!$sig_lbound) {
436: $sig_lbound = 0; #SIG_LB_DEFAULT
437: $sig_ubound =15; #SIG_UB_DEFAULT
438: }
439: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
440: }
441: return ($sig_ubound,$sig_lbound);
442: }
443:
444: sub start_stringresponse {
445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
446: my $result;
447: if ($target eq 'meta') {
448: $result=&Apache::response::meta_package_write('stringresponse');
449: } else {
450: $result.=&start_numericalresponse(@_);
451: }
452: return $result;
453: }
454:
455: sub end_stringresponse {
456: return end_numericalresponse(@_);
457: }
458:
459: sub start_formularesponse {
460: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
461: my $result;
462: if ($target eq 'meta') {
463: $result=&Apache::response::meta_package_write('formularesponse');
464: } else {
465: $result.=&start_numericalresponse(@_);
466: }
467: return $result;
468: }
469:
470: sub end_formularesponse {
471: return end_numericalresponse(@_);
472: }
473:
474: 1;
475: __END__
476:
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