1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.74 2002/11/27 16:50:09 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: } elsif ($target eq 'answer' || $target eq 'grade') {
117: &Apache::response::reset_params();
118: }
119: return $result;
120: }
121:
122: sub end_numericalresponse {
123: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
124: my $result = '';
125: if (!$Apache::lonxml::default_homework_loaded) {
126: &Apache::lonxml::default_homework_load($safeeval);
127: }
128: if ( $target eq 'grade' ) {
129: if ( defined $ENV{'form.submitted'}) {
130: &Apache::response::setup_params($$tagstack[-1]);
131: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
132: my $partid = $Apache::inputtags::part;
133: my $id = $Apache::inputtags::response['-1'];
134: my $response = $ENV{'form.HWVAL'.$id};
135: if ( $response =~ /[^\s]/) {
136: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
137: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
138: &Apache::lonxml::debug("submitted a $response<br>\n");
139: &Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
140: $response =~ s/\\/\\\\/g;
141: $response =~ s/\'/\\\'/g;
142: &Apache::lonxml::debug("current $response");
143: my $expression="&caparesponse_check_list('".$response."','".
144: $$parstack[$#$parstack];
145: foreach my $key (keys(%Apache::inputtags::params)) {
146: $expression.= ';my $'. #'
147: $key.'="'.$Apache::inputtags::params{$key}.'"';
148: }
149: if ($$tagstack[-1] eq 'formularesponse') {
150: $expression.=';my $type="fml";';
151: } elsif ($$tagstack[-1] eq 'numericalresponse') {
152: $expression.=';my $type="float";';
153: }
154: $expression.="');";
155: $result = &Apache::run::run($expression,$safeeval);
156: my ($awards) = split /:/ , $result;
157: my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
158: &Apache::response::handle_previous(\%previous,$ad);
159: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
160: &Apache::lonxml::debug("$expression");
161: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
162: $result='';
163: }
164: }
165: } elsif ($target eq 'web' || $target eq 'tex') {
166: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
167: my $status = $Apache::inputtags::status['-1'];
168: if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) {
169: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
170: $safeeval);
171: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
172: $safeeval);
173: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
174:
175: if ($target eq 'web') {
176: $result="<br />The correct answer is ";
177: } elsif ($target eq 'tex') {
178: $result='\vskip 0 mm The correct answer is \\texttt{';
179: }
180: for (my $i=0; $i <= $#answers; $i++) {
181: my $answer=$answers[$i];
182: my $format;
183: if ($#formats > 0) {
184: $format=$formats[$i];
185: } else {
186: $format=$formats[0];
187: }
188: my $formatted;
189: if ((defined($format)) && ($format ne '')) {
190: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
191: $formatted=sprintf('%.'.$format,$answer).',';
192: } else {
193: &Apache::lonxml::debug("no format answer :$answer:");
194: $formatted="$answer,";
195: }
196: if ($target eq 'tex') {$formatted=&Apache::lonxml::latex_special_symbols($formatted);}
197: $result.=$formatted;
198: }
199: chop $result;
200: if ($target eq 'web') {
201: $result.=" $unit.<br />";
202: } elsif ($target eq 'tex') {
203: $result.=&Apache::lonxml::latex_special_symbols($unit);
204: $result.="}. \\vskip 0 mm ";
205: }
206: }
207: if ($Apache::lonhomework::type eq 'exam') {
208: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
209: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
210: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
211: my $number_of_bubbles = 8; #default values for number of bubbles
212: my @bubbles_values = ();
213: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
214: my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
215: my $factors_number = 5; #default values for number of factors
216: my $powers_number = 8; #default values for number of powers
217: my $symb;
218: if ($ENV{'form.symb'}=~/___\d+___/) {$symb=$ENV{'form.symb'};} else {$symb=$ENV{'request.symb'};}
219: my $randomseed = srand(&Apache::lonnet::rndseed($symb,$ENV{'request.course.id'},
220: $ENV{'user.domain'},$ENV{'user.name'}));
221: my $ind=1+int(rand()*($factors_number-1));
222: my $factor = $factors[$ind];
223: $ind=1+int(rand()*($powers_number-1));
224: my $power = $powers[$ind];
225: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
226: $bubbles_values[$ind] = $answers[0]*$factor**($power-$powers[$powers_number-$ind-1]);
227: }
228: my @alphabet = ('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
229: 'Q','R','S','T','U','V','W','X','Y','Z');
230: if ($target eq 'web') {
231: my $id=$Apache::inputtags::response[-1];
232: $result.= '<table border="1"><tr>';
233: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
234: my $ans;
235: if ($formats[0] ne '') {
236: $ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
237: } else {
238: my $badans = $bubbles_values[$ind];
239: my $format = '';
240: #What is the number? (integer,decimal,floating point)
241: if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
242: $format = 'e'.$2;
243: } elsif ($badans=~/^(\d*)\.(\d*)$/) {
244: $format = '4f';
245: } elsif ($badans=~/^(\d*)$/) {
246: $format = 'd';
247: }
248: $ans = sprintf('%.'.$format,$bubbles_values[$ind]);
249: }
250: $result.='<td><input type="radio" name="HWVAL'.$id.'" value="'.$ans.'"><b>'.$alphabet[$ind].'</b>: '.$ans.'</td>';
251: }
252: $result.='</tr></table>';
253: } elsif ($target eq 'tex') {
254: my $max_val = 0;
255: if ($formats[0]=~m/^(\d+)E([^\d]*)(\d*)$/) {
256: $max_val=$1+$2+4;
257: } else {
258: $max_val=4;
259: }
260: $max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));
261: my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;
262: my @table_range = ();
263: my $number_of_tables = int($number_of_bubbles/$max_val);
264: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
265: if ($number_of_bubbles % $max_val != 0) {
266: $number_of_tables++;
267: push @table_range,($number_of_bubbles % $max_val);
268: }
269: my $j=0;
270: my $cou=0;
271: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
272: for (my $i=0;$i<$number_of_tables;$i++) {
273: $result.='\vskip -1 mm \noindent \begin{tabular}{';
274: for ($ind=0;$ind<$table_range[$j];$ind++) {
275: $result.='lp{'.$celllength.' mm}';
276: }
277: $result.='}';
278: for ($ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
279: my $ans;
280: if ($formats[0] ne '') {
281: $ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
282: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
283: my $number = $1;
284: my $power = $2;
285: $power=~s/^\+//;
286: $power=~s/^(-?)0+(\d+)//;
287: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
288: }
289: } else {
290: my $badans = $bubbles_values[$ind];
291: my $format = '';
292: #What is the number? (integer,decimal,floating point)
293: if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
294: $format = 'e'.$2;
295: } elsif ($badans=~/^(\d*)\.(\d*)$/) {
296: $format = '4f';
297: } elsif ($badans=~/^(\d*)$/) {
298: $format = 'd';
299: }
300: $ans = sprintf('%.'.$format,$bubbles_values[$ind]);
301: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
302: my $number = $1;
303: my $power = $2;
304: $power=~s/^\+//;
305: $power=~s/^(-?)0+(\d+)//;
306: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
307: }
308: }
309: $result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$ans.'} ';
310: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
311: }
312: $cou += $table_range[$j];
313: $j++;
314: $result.='\\\\\end{tabular}\vskip 0 mm ';
315: }
316: $result.='\end{enumerate}';
317: &Apache::lonxml::increment_counter();
318: }
319: }
320: } elsif ($target eq 'edit') {
321: $result.='</td></tr>'.&Apache::edit::end_table;
322: } elsif ($target eq 'answer' || $target eq 'analyze') {
323:
324: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
325: if ($target eq 'analyze') {
326: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
327: $Apache::lonhomework::analyze{"$part_id.type"} = $$tagstack[-1];
328: }
329: &Apache::response::setup_params($$tagstack[-1]);
330: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
331: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
332: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
333: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
334:
335: if ($target eq 'answer') {
336: $result.=&Apache::response::answer_header($$tagstack[-1]);
337: }
338: for(my $i=0;$i<=$#answers;$i++) {
339: my $ans=$answers[$i];
340: my $fmt;
341: if (@formats) {
342: if ($#formats) {
343: $fmt=$formats[$i];
344: } else {
345: $fmt=$formats[0];
346: }
347: }
348: my ($high,$low);
349: if ($Apache::inputtags::params{'tol'}) {
350: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
351: }
352: my ($sighigh,$siglow);
353: if ($Apache::inputtags::params{'sig'}) {
354: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
355: }
356: if ($fmt) {
357: $ans = sprintf('%.'.$fmt,$ans);
358: if ($high) {
359: $high = sprintf('%.'.$fmt,$high); $low = sprintf('%.'.$fmt,$low);
360: }
361: }
362: if ($target eq 'answer') {
363: if ($high) { $ans.=' ['.$low.','.$high.']'; }
364: if ($sighigh) { $ans.= " Sig <i>$siglow - $sighigh</i>"; }
365: $result.=&Apache::response::answer_part($$tagstack[-1],$ans);
366: } elsif ($target eq 'analyze') {
367: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} },
368: $ans);
369: if ($high) {
370: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
371: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
372: }
373: }
374: }
375: if ($unit) {
376: if ($target eq 'answer') {
377: $result.=&Apache::response::answer_part($$tagstack[-1],
378: "Unit: <b>$unit</b>");
379: } elsif ($target eq 'analyze') {
380: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} },
381: $unit);
382: }
383: }
384: if ($type || $token->[1] eq 'stringresponse') {
385: my $string='Case Insensitive';
386: if ($type eq 'mc') {
387: $string='Multiple Choice';
388: } elsif ($type eq 'cs') {
389: $string='Case Sensitive';
390: } elsif ($type eq 'ci') {
391: $string='Case Insensitive';
392: } elsif ($type eq 'fml') {
393: $string='Formula';
394: }
395: if ($target eq 'answer') {
396: $result.=&Apache::response::answer_part($$tagstack[-1],
397: '<b>'.$string.'</b>');
398: } elsif ($target eq 'analyze') {
399: push (@{ $Apache::lonhomework::analyze{"$part_id.type"} },
400: $type);
401: }
402: }
403: if ($$tagstack[-1] eq 'formularesponse' && $target eq 'answer') {
404: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
405: $result.=&Apache::response::answer_part($$tagstack[-1],$samples);
406: }
407: if ($target eq 'answer') {
408: $result.=&Apache::response::answer_footer($$tagstack[-1]);
409: }
410: }
411: &Apache::response::end_response;
412: return $result;
413: }
414:
415: sub get_tolrange {
416: my ($ans,$tol)=@_;
417: my ($high,$low);
418: if ($tol =~ /%$/) {
419: chop($tol);
420: my $change=$ans*($tol/100.0);
421: $high=$ans+$change;
422: $low=$ans-$change;
423: } else {
424: $high=$ans+$tol;
425: $low=$ans-$tol;
426: }
427: return ($high,$low);
428: }
429:
430: sub get_sigrange {
431: my ($sig)=@_;
432: &Apache::lonxml::debug("Got a sig of :$sig:");
433: my $sig_lbound;
434: my $sig_ubound;
435: if ($sig eq '') {
436: $sig_lbound = 0; #SIG_LB_DEFAULT
437: $sig_ubound =15; #SIG_UB_DEFAULT
438: } else {
439: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
440: if (!$sig_lbound) {
441: $sig_lbound = 0; #SIG_LB_DEFAULT
442: $sig_ubound =15; #SIG_UB_DEFAULT
443: }
444: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
445: }
446: return ($sig_ubound,$sig_lbound);
447: }
448:
449: sub start_stringresponse {
450: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
451: my $result;
452: if ($target eq 'meta') {
453: $result=&Apache::response::meta_package_write('stringresponse');
454: } else {
455: $result.=&start_numericalresponse(@_);
456: }
457: return $result;
458: }
459:
460: sub end_stringresponse {
461: return end_numericalresponse(@_);
462: }
463:
464: sub start_formularesponse {
465: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
466: my $result;
467: if ($target eq 'meta') {
468: $result=&Apache::response::meta_package_write('formularesponse');
469: } else {
470: $result.=&start_numericalresponse(@_);
471: }
472: return $result;
473: }
474:
475: sub end_formularesponse {
476: return end_numericalresponse(@_);
477: }
478:
479: 1;
480: __END__
481:
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