1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.69 2002/11/07 15:12:23 sakharuk 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: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
161: my $status = $Apache::inputtags::status['-1'];
162: if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) {
163: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
164: $safeeval);
165: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
166: $safeeval);
167: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
168:
169: if ($target eq 'web') {
170: $result="<br />The correct answer is ";
171: } elsif ($target eq 'tex') {
172: $result='\vskip 0 mm The correct answer is \\texttt{';
173: }
174: for (my $i=0; $i <= $#answers; $i++) {
175: my $answer=$answers[$i];
176: my $format;
177: if ($#formats > 0) {
178: $format=$formats[$i];
179: } else {
180: $format=$formats[0];
181: }
182: my $formatted;
183: if ((defined($format)) && ($format ne '')) {
184: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
185: $formatted=sprintf('%.'.$format,$answer).',';
186: } else {
187: &Apache::lonxml::debug("no format answer :$answer:");
188: $formatted="$answer,";
189: }
190: if ($target eq 'tex') {$formatted=&Apache::lonxml::latex_special_symbols($formatted);}
191: $result.=$formatted;
192: }
193: chop $result;
194: if ($target eq 'web') {
195: $result.=" $unit.<br />";
196: } elsif ($target eq 'tex') {
197: $result.=&Apache::lonxml::latex_special_symbols($unit);
198: $result.="}. \\vskip 0 mm ";
199: }
200: }
201: if ($Apache::lonhomework::type eq 'exam') {
202: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
203: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
204: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
205: my $number_of_bubbles = 8; #default values for number of bubbles
206: my @bubbles_values = ();
207: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
208: my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
209: my $factors_number = 5; #default values for number of factors
210: my $powers_number = 8; #default values for number of powers
211: my $symb;
212: if ($ENV{'form.symb'}=~/___\d+___/) {$symb=$ENV{'form.symb'};} else {$symb=$ENV{'request.symb'};}
213: my $randomseed = srand(&Apache::lonnet::rndseed($symb,$ENV{'request.course.id'},
214: $ENV{'user.domain'},$ENV{'user.name'}));
215: my $ind=1+int(rand()*($factors_number-1));
216: my $factor = $factors[$ind];
217: $ind=1+int(rand()*($powers_number-1));
218: my $power = $powers[$ind];
219: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
220: $bubbles_values[$ind] = $answers[0]*$factor**($power-$powers[$powers_number-$ind-1]);
221: }
222: my @alphabet = ('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
223: 'Q','R','S','T','U','V','W','X','Y','Z');
224: if ($target eq 'web') {
225: $result.= '<table border="1"><tr>';
226: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
227: my $ans;
228: if ($formats[0] ne '') {
229: $ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
230: } else {
231: my $badans = $bubbles_values[$ind];
232: my $format = '';
233: #What is the number? (integer,decimal,floating point)
234: if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
235: $format = 'e'.$2;
236: } elsif ($badans=~/^(\d*)\.(\d*)$/) {
237: $format = '4f';
238: } elsif ($badans=~/^(\d*)$/) {
239: $format = 'd';
240: }
241: $ans = sprintf('%.'.$format,$bubbles_values[$ind]);
242: }
243: $result.='<td>'.$alphabet[$ind].': '.$ans.'</td>';
244: }
245: $result.='</tr></table>';
246: } elsif ($target eq 'tex') {
247: my $max_val = 0;
248: if ($formats[0]=~m/^(\d+)E([^\d]*)(\d*)$/) {
249: $max_val=$1+$2+4;
250: } else {
251: $max_val=4;
252: }
253: $max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));
254: my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;
255: my @table_range = ();
256: my $number_of_tables = int($number_of_bubbles/$max_val);
257: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
258: if ($number_of_bubbles % $max_val != 0) {
259: $number_of_tables++;
260: push @table_range,($number_of_bubbles % $max_val);
261: }
262: my $j=0;
263: my $cou=0;
264: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
265: for (my $i=0;$i<$number_of_tables;$i++) {
266: $result.='\vskip -1 mm \noindent \begin{tabular}{';
267: for ($ind=0;$ind<$table_range[$j];$ind++) {
268: $result.='lp{'.$celllength.' mm}';
269: }
270: $result.='}';
271: for ($ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
272: my $ans;
273: if ($formats[0] ne '') {
274: $ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
275: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
276: my $number = $1;
277: my $power = $2;
278: $power=~s/^\+//;
279: $power=~s/^(-?)0+(\d+)//;
280: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
281: }
282: } else {
283: my $badans = $bubbles_values[$ind];
284: my $format = '';
285: #What is the number? (integer,decimal,floating point)
286: if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
287: $format = 'e'.$2;
288: } elsif ($badans=~/^(\d*)\.(\d*)$/) {
289: $format = '4f';
290: } elsif ($badans=~/^(\d*)$/) {
291: $format = 'd';
292: }
293: $ans = sprintf('%.'.$format,$bubbles_values[$ind]);
294: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
295: my $number = $1;
296: my $power = $2;
297: $power=~s/^\+//;
298: $power=~s/^(-?)0+(\d+)//;
299: $ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
300: }
301: }
302: $result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$ans.'} ';
303: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
304: }
305: $cou += $table_range[$j];
306: $j++;
307: $result.='\\\\\end{tabular}\vskip 0 mm ';
308: }
309: $result.='\end{enumerate}';
310: &Apache::lonxml::increment_counter();
311: }
312: }
313: } elsif ($target eq 'edit') {
314: $result.='</td></tr>'.&Apache::edit::end_table;
315: } elsif ($target eq 'answer' || $target eq 'analyze') {
316:
317: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
318: if ($target eq 'analyze') {
319: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
320: $Apache::lonhomework::analyze{"$part_id.type"} = $$tagstack[-1];
321: }
322: &Apache::response::setup_params($$tagstack[-1]);
323: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
324: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
325: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
326: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
327:
328: if ($target eq 'answer') {
329: $result.=&Apache::response::answer_header($$tagstack[-1]);
330: }
331: for(my $i=0;$i<=$#answers;$i++) {
332: my $ans=$answers[$i];
333: my $fmt;
334: if (@formats) {
335: if ($#formats) {
336: $fmt=$formats[$i];
337: } else {
338: $fmt=$formats[0];
339: }
340: }
341: my ($high,$low);
342: if ($Apache::inputtags::params{'tol'}) {
343: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
344: }
345: my ($sighigh,$siglow);
346: if ($Apache::inputtags::params{'sig'}) {
347: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
348: }
349: if ($fmt) {
350: $ans = sprintf('%.'.$fmt,$ans);
351: if ($high) {
352: $high = sprintf('%.'.$fmt,$high); $low = sprintf('%.'.$fmt,$low);
353: }
354: }
355: if ($target eq 'answer') {
356: if ($high) { $ans.=' ['.$low.','.$high.'] '; }
357: if ($sighigh) { $ans.= "Sig <i>$siglow - $sighigh</i>"; }
358: $result.=&Apache::response::answer_part($$tagstack[-1],$ans);
359: } elsif ($target eq 'analyze') {
360: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} },
361: $ans);
362: if ($high) {
363: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
364: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
365: }
366: }
367: }
368: if ($unit) {
369: if ($target eq 'answer') {
370: $result.=&Apache::response::answer_part($$tagstack[-1],
371: "Unit: <b>$unit</b>");
372: } elsif ($target eq 'analyze') {
373: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} },
374: $unit);
375: }
376: }
377: if ($type || $token->[1] eq 'stringresponse') {
378: my $string='Case Insensitive';
379: if ($type eq 'mc') {
380: $string='Multiple Choice';
381: } elsif ($type eq 'cs') {
382: $string='Case Sensitive';
383: } elsif ($type eq 'ci') {
384: $string='Case Insensitive';
385: } elsif ($type eq 'fml') {
386: $string='Formula';
387: }
388: if ($target eq 'answer') {
389: $result.=&Apache::response::answer_part($$tagstack[-1],
390: '<b>'.$string.'</b>');
391: } elsif ($target eq 'analyze') {
392: push (@{ $Apache::lonhomework::analyze{"$part_id.type"} },
393: $type);
394: }
395: }
396: if ($$tagstack[-1] eq 'formularesponse' && $target eq 'answer') {
397: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
398: $result.=&Apache::response::answer_part($$tagstack[-1],$samples);
399: }
400: if ($target eq 'answer') {
401: $result.=&Apache::response::answer_footer($$tagstack[-1]);
402: }
403: }
404: &Apache::response::end_response;
405: return $result;
406: }
407:
408: sub get_tolrange {
409: my ($ans,$tol)=@_;
410: my ($high,$low);
411: if ($tol =~ /%$/) {
412: chop($tol);
413: my $change=$ans*($tol/100.0);
414: $high=$ans+$change;
415: $low=$ans-$change;
416: } else {
417: $high=$ans+$tol;
418: $low=$ans-$tol;
419: }
420: return ($high,$low);
421: }
422:
423: sub get_sigrange {
424: my ($sig)=@_;
425: &Apache::lonxml::debug("Got a sig of :$sig:");
426: my $sig_lbound;
427: my $sig_ubound;
428: if ($sig eq '') {
429: $sig_lbound = 0; #SIG_LB_DEFAULT
430: $sig_ubound =15; #SIG_UB_DEFAULT
431: } else {
432: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
433: if (!$sig_lbound) {
434: $sig_lbound = 0; #SIG_LB_DEFAULT
435: $sig_ubound =15; #SIG_UB_DEFAULT
436: }
437: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
438: }
439: return ($sig_ubound,$sig_lbound);
440: }
441:
442: sub start_stringresponse {
443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
444: my $result;
445: if ($target eq 'meta') {
446: $result=&Apache::response::meta_package_write('stringresponse');
447: } else {
448: $result.=&start_numericalresponse(@_);
449: }
450: return $result;
451: }
452:
453: sub end_stringresponse {
454: return end_numericalresponse(@_);
455: }
456:
457: sub start_formularesponse {
458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
459: my $result;
460: if ($target eq 'meta') {
461: $result=&Apache::response::meta_package_write('formularesponse');
462: } else {
463: $result.=&start_numericalresponse(@_);
464: }
465: return $result;
466: }
467:
468: sub end_formularesponse {
469: return end_numericalresponse(@_);
470: }
471:
472: 1;
473: __END__
474:
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