1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.72 2002/11/13 23:37:56 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','Case Sensitive'],['ci','Case Insensitive'],
93: ['mc','Case Insensitive, Any Order']],$token);
94: } elsif ($token->[1] eq 'formularesponse') {
95: $result.=&Apache::edit::text_arg('Sample Points:','samples',$token,40);
96: }
97: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
98: } elsif ($target eq 'modified') {
99: my $constructtag;
100: if ($token->[1] eq 'numericalresponse') {
101: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
102: 'answer','unit','format');
103: } elsif ($token->[1] eq 'stringresponse') {
104: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
105: 'answer','type');
106: } elsif ($token->[1] eq 'formularesponse') {
107: $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
108: 'answer','samples');
109: }
110: if ($constructtag) {
111: $result = &Apache::edit::rebuild_tag($token);
112: $result.=&Apache::edit::handle_insert();
113: }
114: } elsif ($target eq 'meta') {
115: $result=&Apache::response::meta_package_write('numericalresponse');
116: }
117: return $result;
118: }
119:
120: sub end_numericalresponse {
121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
122: my $result = '';
123: if ( $target eq 'grade' ) {
124: if ( defined $ENV{'form.submitted'}) {
125: &Apache::response::setup_params($$tagstack[-1]);
126: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
127: my $partid = $Apache::inputtags::part;
128: my $id = $Apache::inputtags::response['-1'];
129: my $response = $ENV{'form.HWVAL'.$id};
130: if ( $response =~ /[^\s]/) {
131: if (!$Apache::lonxml::default_homework_loaded) {
132: &Apache::lonxml::default_homework_load($safeeval);
133: }
134: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
135: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
136: &Apache::lonxml::debug("submitted a $response<br>\n");
137: &Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
138: $response =~ s/\\/\\\\/g;
139: $response =~ s/\'/\\\'/g;
140: &Apache::lonxml::debug("current $response");
141: my $expression="&caparesponse_check_list('".$response."','".
142: $$parstack[$#$parstack];
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 /:/ , $result;
155: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
156: &Apache::response::handle_previous(\%previous,$ad);
157: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
158: &Apache::lonxml::debug("$expression");
159: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
160: $result='';
161: }
162: }
163: } elsif ($target eq 'web' || $target eq 'tex') {
164: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
165: my $status = $Apache::inputtags::status['-1'];
166: if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) {
167: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
168: $safeeval);
169: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
170: $safeeval);
171: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
172:
173: if ($target eq 'web') {
174: $result="<br />The correct answer is ";
175: } elsif ($target eq 'tex') {
176: $result='\vskip 0 mm The correct answer is \\texttt{';
177: }
178: for (my $i=0; $i <= $#answers; $i++) {
179: my $answer=$answers[$i];
180: my $format;
181: if ($#formats > 0) {
182: $format=$formats[$i];
183: } else {
184: $format=$formats[0];
185: }
186: my $formatted;
187: if ((defined($format)) && ($format ne '')) {
188: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
189: $formatted=sprintf('%.'.$format,$answer).',';
190: } else {
191: &Apache::lonxml::debug("no format answer :$answer:");
192: $formatted="$answer,";
193: }
194: if ($target eq 'tex') {$formatted=&Apache::lonxml::latex_special_symbols($formatted);}
195: $result.=$formatted;
196: }
197: chop $result;
198: if ($target eq 'web') {
199: $result.=" $unit.<br />";
200: } elsif ($target eq 'tex') {
201: $result.=&Apache::lonxml::latex_special_symbols($unit);
202: $result.="}. \\vskip 0 mm ";
203: }
204: }
205: if ($Apache::lonhomework::type eq 'exam') {
206: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
207: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
208: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
209: my $number_of_bubbles = 8; #default values for number of bubbles
210: my @bubbles_values = ();
211: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
212: my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
213: my $factors_number = 5; #default values for number of factors
214: my $powers_number = 8; #default values for number of powers
215: my $symb;
216: if ($ENV{'form.symb'}=~/___\d+___/) {$symb=$ENV{'form.symb'};} else {$symb=$ENV{'request.symb'};}
217: my $randomseed = srand(&Apache::lonnet::rndseed($symb,$ENV{'request.course.id'},
218: $ENV{'user.domain'},$ENV{'user.name'}));
219: my $ind=1+int(rand()*($factors_number-1));
220: my $factor = $factors[$ind];
221: $ind=1+int(rand()*($powers_number-1));
222: my $power = $powers[$ind];
223: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
224: $bubbles_values[$ind] = $answers[0]*$factor**($power-$powers[$powers_number-$ind-1]);
225: }
226: my @alphabet = ('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
227: 'Q','R','S','T','U','V','W','X','Y','Z');
228: if ($target eq 'web') {
229: my $id=$Apache::inputtags::response[-1];
230: $result.= '<table border="1"><tr>';
231: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
232: my $ans;
233: if ($formats[0] ne '') {
234: $ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
235: } else {
236: my $badans = $bubbles_values[$ind];
237: my $format = '';
238: #What is the number? (integer,decimal,floating point)
239: if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
240: $format = 'e'.$2;
241: } elsif ($badans=~/^(\d*)\.(\d*)$/) {
242: $format = '4f';
243: } elsif ($badans=~/^(\d*)$/) {
244: $format = 'd';
245: }
246: $ans = sprintf('%.'.$format,$bubbles_values[$ind]);
247: }
248: $result.='<td><input type="radio" name="HWVAL'.$id.'" value="'.$ans.'"><b>'.$alphabet[$ind].'</b>: '.$ans.'</td>';
249: }
250: $result.='</tr></table>';
251: } elsif ($target eq 'tex') {
252: my $max_val = 0;
253: if ($formats[0]=~m/^(\d+)E([^\d]*)(\d*)$/) {
254: $max_val=$1+$2+4;
255: } else {
256: $max_val=4;
257: }
258: $max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));
259: my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;
260: my @table_range = ();
261: my $number_of_tables = int($number_of_bubbles/$max_val);
262: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
263: if ($number_of_bubbles % $max_val != 0) {
264: $number_of_tables++;
265: push @table_range,($number_of_bubbles % $max_val);
266: }
267: my $j=0;
268: my $cou=0;
269: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
270: for (my $i=0;$i<$number_of_tables;$i++) {
271: $result.='\vskip -1 mm \noindent \begin{tabular}{';
272: for ($ind=0;$ind<$table_range[$j];$ind++) {
273: $result.='lp{'.$celllength.' mm}';
274: }
275: $result.='}';
276: for ($ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
277: my $ans;
278: if ($formats[0] ne '') {
279: $ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
280: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
281: my $number = $1;
282: my $power = $2;
283: $power=~s/^\+//;
284: $power=~s/^(-?)0+(\d+)//;
285: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
286: }
287: } else {
288: my $badans = $bubbles_values[$ind];
289: my $format = '';
290: #What is the number? (integer,decimal,floating point)
291: if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
292: $format = 'e'.$2;
293: } elsif ($badans=~/^(\d*)\.(\d*)$/) {
294: $format = '4f';
295: } elsif ($badans=~/^(\d*)$/) {
296: $format = 'd';
297: }
298: $ans = sprintf('%.'.$format,$bubbles_values[$ind]);
299: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
300: my $number = $1;
301: my $power = $2;
302: $power=~s/^\+//;
303: $power=~s/^(-?)0+(\d+)//;
304: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
305: }
306: }
307: $result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$ans.'} ';
308: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
309: }
310: $cou += $table_range[$j];
311: $j++;
312: $result.='\\\\\end{tabular}\vskip 0 mm ';
313: }
314: $result.='\end{enumerate}';
315: &Apache::lonxml::increment_counter();
316: }
317: }
318: } elsif ($target eq 'edit') {
319: $result.='</td></tr>'.&Apache::edit::end_table;
320: } elsif ($target eq 'answer' || $target eq 'analyze') {
321:
322: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
323: if ($target eq 'analyze') {
324: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
325: $Apache::lonhomework::analyze{"$part_id.type"} = $$tagstack[-1];
326: }
327: &Apache::response::setup_params($$tagstack[-1]);
328: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
329: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
330: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
331: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
332:
333: if ($target eq 'answer') {
334: $result.=&Apache::response::answer_header($$tagstack[-1]);
335: }
336: for(my $i=0;$i<=$#answers;$i++) {
337: my $ans=$answers[$i];
338: my $fmt;
339: if (@formats) {
340: if ($#formats) {
341: $fmt=$formats[$i];
342: } else {
343: $fmt=$formats[0];
344: }
345: }
346: my ($high,$low);
347: if ($Apache::inputtags::params{'tol'}) {
348: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
349: }
350: my ($sighigh,$siglow);
351: if ($Apache::inputtags::params{'sig'}) {
352: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
353: }
354: if ($fmt) {
355: $ans = sprintf('%.'.$fmt,$ans);
356: if ($high) {
357: $high = sprintf('%.'.$fmt,$high); $low = sprintf('%.'.$fmt,$low);
358: }
359: }
360: if ($target eq 'answer') {
361: if ($high) { $ans.=' ['.$low.','.$high.'] '; }
362: if ($sighigh) { $ans.= "Sig <i>$siglow - $sighigh</i>"; }
363: $result.=&Apache::response::answer_part($$tagstack[-1],$ans);
364: } elsif ($target eq 'analyze') {
365: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} },
366: $ans);
367: if ($high) {
368: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
369: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
370: }
371: }
372: }
373: if ($unit) {
374: if ($target eq 'answer') {
375: $result.=&Apache::response::answer_part($$tagstack[-1],
376: "Unit: <b>$unit</b>");
377: } elsif ($target eq 'analyze') {
378: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} },
379: $unit);
380: }
381: }
382: if ($type || $token->[1] eq 'stringresponse') {
383: my $string='Case Insensitive';
384: if ($type eq 'mc') {
385: $string='Multiple Choice';
386: } elsif ($type eq 'cs') {
387: $string='Case Sensitive';
388: } elsif ($type eq 'ci') {
389: $string='Case Insensitive';
390: } elsif ($type eq 'fml') {
391: $string='Formula';
392: }
393: if ($target eq 'answer') {
394: $result.=&Apache::response::answer_part($$tagstack[-1],
395: '<b>'.$string.'</b>');
396: } elsif ($target eq 'analyze') {
397: push (@{ $Apache::lonhomework::analyze{"$part_id.type"} },
398: $type);
399: }
400: }
401: if ($$tagstack[-1] eq 'formularesponse' && $target eq 'answer') {
402: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
403: $result.=&Apache::response::answer_part($$tagstack[-1],$samples);
404: }
405: if ($target eq 'answer') {
406: $result.=&Apache::response::answer_footer($$tagstack[-1]);
407: }
408: }
409: &Apache::response::end_response;
410: return $result;
411: }
412:
413: sub get_tolrange {
414: my ($ans,$tol)=@_;
415: my ($high,$low);
416: if ($tol =~ /%$/) {
417: chop($tol);
418: my $change=$ans*($tol/100.0);
419: $high=$ans+$change;
420: $low=$ans-$change;
421: } else {
422: $high=$ans+$tol;
423: $low=$ans-$tol;
424: }
425: return ($high,$low);
426: }
427:
428: sub get_sigrange {
429: my ($sig)=@_;
430: &Apache::lonxml::debug("Got a sig of :$sig:");
431: my $sig_lbound;
432: my $sig_ubound;
433: if ($sig eq '') {
434: $sig_lbound = 0; #SIG_LB_DEFAULT
435: $sig_ubound =15; #SIG_UB_DEFAULT
436: } else {
437: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
438: if (!$sig_lbound) {
439: $sig_lbound = 0; #SIG_LB_DEFAULT
440: $sig_ubound =15; #SIG_UB_DEFAULT
441: }
442: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
443: }
444: return ($sig_ubound,$sig_lbound);
445: }
446:
447: sub start_stringresponse {
448: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
449: my $result;
450: if ($target eq 'meta') {
451: $result=&Apache::response::meta_package_write('stringresponse');
452: } else {
453: $result.=&start_numericalresponse(@_);
454: }
455: return $result;
456: }
457:
458: sub end_stringresponse {
459: return end_numericalresponse(@_);
460: }
461:
462: sub start_formularesponse {
463: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
464: my $result;
465: if ($target eq 'meta') {
466: $result=&Apache::response::meta_package_write('formularesponse');
467: } else {
468: $result.=&start_numericalresponse(@_);
469: }
470: return $result;
471: }
472:
473: sub end_formularesponse {
474: return end_numericalresponse(@_);
475: }
476:
477: 1;
478: __END__
479:
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