1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.65 2002/10/14 20:37:27 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_caparesponse {
38: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
39: my $id = &Apache::response::start_response($parstack,$safeeval);
40: return '';
41: }
42:
43: sub end_caparesponse {
44: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
45: my $result = '';
46: if ( $target eq 'grade' ) {
47: if ( defined $ENV{'form.submitted'}) {
48: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
49: my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
50: if ( $response =~ /[^\s]/) {
51: my $id = $Apache::inputtags::response['-1'];
52: my $previous= &Apache::response::check_for_previous($response,$id,$response);
53: if ( $previous ) {
54: $result = 'PREVIOUSLY_USED';
55: } else {
56: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
57: &Apache::lonxml::debug("submitted a $response<br>\n");
58: &Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
59: my $expression="&caparesponse_check('".$response."','".
60: $$parstack[$#$parstack].
61: ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
62: ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
63: "');";
64: $result = &Apache::run::run($expression,$safeeval);
65: my ($ad) = split /:/ , $result;
66: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$ad;
67: &Apache::lonxml::debug("$expression");
68: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
69: }
70: }
71: }
72: } elsif ($target eq 'web') {
73: #$result .= "The correct answer is ".&Apache::run::run("{$$parstack['-1'];".'return $answer}',$safeeval)."\n";
74: }
75: #Apache::lonxml::debug("\n<br>\nreal end caparesponse<br>\n");
76: &Apache::response::end_response;
77: return '';
78: }
79:
80: sub start_numericalresponse {
81: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
82: my $id = &Apache::response::start_response($parstack,$safeeval);
83: my $result;
84: if ($target eq 'edit') {
85: $result.=&Apache::edit::tag_start($target,$token);
86: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
87: if ($token->[1] eq 'numericalresponse') {
88: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5);
89: $result.=&Apache::edit::text_arg('Format:','format',$token,4);
90: } elsif ($token->[1] eq 'stringresponse') {
91: $result.=&Apache::edit::select_arg('Type:','type',
92: ['cs','ci','mc'],$token);
93: } elsif ($token->[1] eq 'formularesponse') {
94: $result.=&Apache::edit::text_arg('Sample Points:','samples',$token,40);
95: }
96: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
97: } elsif ($target eq 'modified') {
98: my $constructtag;
99: if ($token->[1] eq 'numericalresponse') {
100: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
101: 'answer','unit','format');
102: } elsif ($token->[1] eq 'stringresponse') {
103: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
104: 'answer','type');
105: } elsif ($token->[1] eq 'formularesponse') {
106: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
107: 'answer','samples');
108: }
109: if ($constructtag) {
110: $result = &Apache::edit::rebuild_tag($token);
111: $result.=&Apache::edit::handle_insert();
112: }
113: } elsif ($target eq 'meta') {
114: $result=&Apache::response::meta_package_write('numericalresponse');
115: }
116: return $result;
117: }
118:
119: sub end_numericalresponse {
120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
121: my $result = '';
122: if ( $target eq 'grade' ) {
123: if ( defined $ENV{'form.submitted'}) {
124: &Apache::response::setup_params($$tagstack[-1]);
125: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
126: my $partid = $Apache::inputtags::part;
127: my $id = $Apache::inputtags::response['-1'];
128: my $response = $ENV{'form.HWVAL'.$id};
129: if ( $response =~ /[^\s]/) {
130: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
131: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
132: &Apache::lonxml::debug("submitted a $response<br>\n");
133: &Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
134: $response =~ s/\\/\\\\/g;
135: $response =~ s/\'/\\\'/g;
136: &Apache::lonxml::debug("current $response");
137: my $expression="&caparesponse_check_list('".$response."','".
138: $$parstack[$#$parstack];
139: foreach my $key (keys(%Apache::inputtags::params)) {
140: $expression.= ';my $'. #'
141: $key.'="'.$Apache::inputtags::params{$key}.'"';
142: }
143: if ($$tagstack[-1] eq 'formularesponse') {
144: $expression.=';my $type="fml";';
145: } elsif ($$tagstack[-1] eq 'numericalresponse') {
146: $expression.=';my $type="float";';
147: }
148: $expression.="');";
149: $result = &Apache::run::run($expression,$safeeval);
150: my ($awards) = split /:/ , $result;
151: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
152: &Apache::response::handle_previous(\%previous,$ad);
153: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
154: &Apache::lonxml::debug("$expression");
155: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
156: $result='';
157: }
158: }
159: } elsif ($target eq 'web' || $target eq 'tex') {
160: if ($Apache::lonhomework::type ne 'exam') {
161: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
162: my $status = $Apache::inputtags::status['-1'];
163: if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) {
164: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
165: $safeeval);
166: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
167: $safeeval);
168: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
169:
170: if ($target eq 'web') {
171: $result="<br />The correct answer is ";
172: } elsif ($target eq 'tex') {
173: $result='\vskip 0 mm The correct answer is \\texttt{';
174: }
175: for (my $i=0; $i <= $#answers; $i++) {
176: my $answer=$answers[$i];
177: my $format;
178: if ($#formats > 0) {
179: $format=$formats[$i];
180: } else {
181: $format=$formats[0];
182: }
183: my $formatted;
184: if ((defined($format)) && ($format ne '')) {
185: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
186: $formatted=sprintf('%.'.$format,$answer).',';
187: } else {
188: &Apache::lonxml::debug("no format answer :$answer:");
189: $formatted="$answer,";
190: }
191: if ($target eq 'tex') {$formatted=&Apache::lonxml::latex_special_symbols($formatted);}
192: $result.=$formatted;
193: }
194: chop $result;
195: if ($target eq 'web') {
196: $result.=" $unit.<br />";
197: } elsif ($target eq 'tex') {
198: $result.=&Apache::lonxml::latex_special_symbols($unit);
199: $result.="}. \\vskip 0 mm ";
200: }
201: }
202: } else {
203: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
204: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
205: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
206: my $number_of_bubbles = 8; #default values for number of bubbles
207: my @bubbles_values = ();
208: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
209: my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
210: my $factors_number = 5; #default values for number of factors
211: my $powers_number = 8; #default values for number of powers
212: my $symb;
213: if ($ENV{'form.symb'}=~/___\d+___/) {$symb=$ENV{'form.symb'};} else {$symb=$ENV{'request.symb'};}
214: my $randomseed = srand(&Apache::lonnet::rndseed($symb,$ENV{'request.course.id'},
215: $ENV{'user.domain'},$ENV{'user.name'}));
216: my $ind=1+int(rand()*($factors_number-1));
217: my $factor = $factors[$ind];
218: $ind=1+int(rand()*($powers_number-1));
219: my $power = $powers[$ind];
220: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
221: $bubbles_values[$ind] = $answers[0]*$factor**($power-$powers[$powers_number-$ind-1]);
222: }
223: my @alphabet = ('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
224: 'Q','R','S','T','U','V','W','X','Y','Z');
225: if ($target eq 'web') {
226: $result.= '<table border="1"><tr>';
227: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
228: my $ans;
229: if ($formats[0] ne '') {
230: $ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
231: } else {
232: my $badans = $bubbles_values[$ind];
233: my $format = '';
234: #What is the number? (integer,decimal,floating point)
235: if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
236: $format = 'e'.$2;
237: } elsif ($badans=~/^(\d*)\.(\d*)$/) {
238: $format = '4f';
239: } elsif ($badans=~/^(\d*)$/) {
240: $format = 'd';
241: }
242: $ans = sprintf('%.'.$format,$bubbles_values[$ind]);
243: }
244: $result.='<td>'.$alphabet[$ind].': '.$ans.'</td>';
245: }
246: $result.='</tr></table>';
247: } elsif ($target eq 'tex') {
248: my $max_val = 0;
249: if ($formats[0]=~m/^(\d+)E([^\d]*)(\d*)$/) {
250: $max_val=$1+$2+4;
251: } else {
252: $max_val=5;
253: }
254: $max_val = int(90/(($max_val+6)*2));
255: my $celllength = 90/$max_val-12;
256: my @table_range = ();
257: my $number_of_tables = int($number_of_bubbles/$max_val);
258: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
259: if ($number_of_bubbles % $max_val != 0) {
260: $number_of_tables++;
261: push @table_range,($number_of_bubbles % $max_val);
262: }
263: my $j=0;
264: my $cou=0;
265: $result.='\vskip 2 mm \noindent ';
266: for (my $i=0;$i<$number_of_tables;$i++) {
267: $result.='\vskip 0 mm \noindent \begin{tabular}{|';
268: for ($ind=0;$ind<$table_range[$j];$ind++) {
269: $result.='lp{'.$celllength.' mm}|';
270: }
271: $result.='}\hline';
272: for ($ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
273: my $ans;
274: if ($formats[0] ne '') {
275: $ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
276: } else {
277: my $badans = $bubbles_values[$ind];
278: my $format = '';
279: #What is the number? (integer,decimal,floating point)
280: if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
281: $format = 'e'.$2;
282: } elsif ($badans=~/^(\d*)\.(\d*)$/) {
283: $format = '4f';
284: } elsif ($badans=~/^(\d*)$/) {
285: $format = 'd';
286: }
287: $ans = sprintf('%.'.$format,$bubbles_values[$ind]);
288: }
289: $result.=' '.$alphabet[$ind].': & '.$ans.' ';
290: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
291: }
292: $cou += $table_range[$j];
293: $j++;
294: $result.='\\\\\hline\end{tabular}\vskip 0 mm ';
295: }
296: }
297: }
298: } elsif ($target eq 'edit') {
299: $result.='</td></tr>'.&Apache::edit::end_table;
300: } elsif ($target eq 'answer' || $target eq 'analyze') {
301:
302: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
303: if ($target eq 'analyze') {
304: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
305: $Apache::lonhomework::analyze{"$part_id.type"} = $$tagstack[-1];
306: }
307: &Apache::response::setup_params($$tagstack[-1]);
308: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
309: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
310: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
311: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
312:
313: if ($target eq 'answer') {
314: $result.=&Apache::response::answer_header($$tagstack[-1]);
315: }
316: for(my $i=0;$i<=$#answers;$i++) {
317: my $ans=$answers[$i];
318: my $fmt;
319: if (@formats) {
320: if ($#formats) {
321: $fmt=$formats[$i];
322: } else {
323: $fmt=$formats[0];
324: }
325: }
326: my ($high,$low);
327: if ($Apache::inputtags::params{'tol'}) {
328: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
329: }
330: my ($sighigh,$siglow);
331: if ($Apache::inputtags::params{'sig'}) {
332: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
333: }
334: if ($fmt) {
335: $ans = sprintf('%.'.$fmt,$ans);
336: if ($high) {
337: $high = sprintf('%.'.$fmt,$high); $low = sprintf('%.'.$fmt,$low);
338: }
339: }
340: if ($target eq 'answer') {
341: if ($high) { $ans.=' ['.$low.','.$high.'] '; }
342: if ($sighigh) { $ans.= "Sig <i>$siglow - $sighigh</i>"; }
343: $result.=&Apache::response::answer_part($$tagstack[-1],$ans);
344: } elsif ($target eq 'analyze') {
345: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} },
346: $ans);
347: if ($high) {
348: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
349: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
350: }
351: }
352: }
353: if ($unit) {
354: if ($target eq 'answer') {
355: $result.=&Apache::response::answer_part($$tagstack[-1],
356: "Unit: <b>$unit</b>");
357: } elsif ($target eq 'analyze') {
358: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} },
359: $unit);
360: }
361: }
362: if ($type || $token->[1] eq 'stringresponse') {
363: my $string='Case Insensitive';
364: if ($type eq 'mc') {
365: $string='Multiple Choice';
366: } elsif ($type eq 'cs') {
367: $string='Case Sensitive';
368: } elsif ($type eq 'ci') {
369: $string='Case Insensitive';
370: } elsif ($type eq 'fml') {
371: $string='Formula';
372: }
373: if ($target eq 'answer') {
374: $result.=&Apache::response::answer_part($$tagstack[-1],
375: '<b>'.$string.'</b>');
376: } elsif ($target eq 'analyze') {
377: push (@{ $Apache::lonhomework::analyze{"$part_id.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: &Apache::response::end_response;
390: return $result;
391: }
392:
393: sub get_tolrange {
394: my ($ans,$tol)=@_;
395: my ($high,$low);
396: if ($tol =~ /%$/) {
397: chop($tol);
398: my $change=$ans*($tol/100.0);
399: $high=$ans+$change;
400: $low=$ans-$change;
401: } else {
402: $high=$ans+$tol;
403: $low=$ans-$tol;
404: }
405: return ($high,$low);
406: }
407:
408: sub get_sigrange {
409: my ($sig)=@_;
410: &Apache::lonxml::debug("Got a sig of :$sig:");
411: my $sig_lbound;
412: my $sig_ubound;
413: if ($sig eq '') {
414: $sig_lbound = 0; #SIG_LB_DEFAULT
415: $sig_ubound =15; #SIG_UB_DEFAULT
416: } else {
417: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
418: if (!$sig_lbound) {
419: $sig_lbound = 0; #SIG_LB_DEFAULT
420: $sig_ubound =15; #SIG_UB_DEFAULT
421: }
422: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
423: }
424: return ($sig_ubound,$sig_lbound);
425: }
426:
427: sub start_stringresponse {
428: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
429: my $result;
430: if ($target eq 'meta') {
431: $result=&Apache::response::meta_package_write('stringresponse');
432: } else {
433: $result.=&start_numericalresponse(@_);
434: }
435: return $result;
436: }
437:
438: sub end_stringresponse {
439: return end_numericalresponse(@_);
440: }
441:
442: sub start_formularesponse {
443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
444: my $result;
445: if ($target eq 'meta') {
446: $result=&Apache::response::meta_package_write('formularesponse');
447: } else {
448: $result.=&start_numericalresponse(@_);
449: }
450: return $result;
451: }
452:
453: sub end_formularesponse {
454: return end_numericalresponse(@_);
455: }
456:
457: 1;
458: __END__
459:
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