Annotation of loncom/homework/caparesponse/caparesponse.pm, revision 1.256
1.3 albertel 1: # The LearningOnline Network with CAPA
2: # caparesponse definition
1.47 albertel 3: #
1.256 ! raeburn 4: # $Id: caparesponse.pm,v 1.255 2014/12/30 20:03:15 raeburn Exp $
1.47 albertel 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: #
1.3 albertel 28:
29: package Apache::caparesponse;
30: use strict;
1.4 albertel 31: use capa;
1.190 albertel 32: use Safe::Hole;
33: use Apache::lonmaxima();
1.129 www 34: use Apache::lonlocal;
1.166 albertel 35: use Apache::lonnet;
1.241 raeburn 36: use Apache::lonmsg();
1.202 www 37: use Apache::response();
1.194 albertel 38: use Storable qw(dclone);
1.251 foxr 39: use Apache::lonnet;
1.3 albertel 40:
1.50 harris41 41: BEGIN {
1.194 albertel 42: &Apache::lonxml::register('Apache::caparesponse',('numericalresponse','stringresponse','formularesponse'));
1.3 albertel 43: }
44:
1.181 albertel 45: my %answer;
1.204 albertel 46: my @answers;
1.251 foxr 47: my @alphabet=('A'..'Z');
48:
1.203 albertel 49: sub get_answer { return %answer; };
1.204 albertel 50: sub push_answer{ push(@answers,dclone(\%answer)); undef(%answer) }
51: sub pop_answer { %answer = %{pop(@answers)}; };
1.203 albertel 52:
1.181 albertel 53: my $cur_name;
1.195 albertel 54: my $tag_internal_answer_name = 'INTERNAL';
55:
1.181 albertel 56: sub start_answer {
57: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
58: my $result;
59: $cur_name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
60: if ($cur_name =~ /^\s*$/) { $cur_name = $Apache::lonxml::curdepth; }
61: my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
62: if (!defined($type) && $tagstack->[-2] eq 'answergroup') {
63: $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
64: }
65: if (!defined($type)) { $type = 'ordered' };
66: $answer{$cur_name}= { 'type' => $type,
67: 'answers' => [] };
1.208 albertel 68: if ($target eq 'edit') {
69: $result.=&Apache::edit::tag_start($target,$token);
70: $result.=&Apache::edit::text_arg('Name:','name',$token);
71: $result.=&Apache::edit::select_arg('Type:','type',
72: [['ordered', 'Ordered' ],
73: ['unordered','Unordered'],],
74: $token);
75: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
76: } elsif ($target eq 'modified') {
77: my $constructtag = &Apache::edit::get_new_args($token,$parstack,
78: $safeeval,'name',
79: 'type');
80: if ($constructtag) {
81: $result = &Apache::edit::rebuild_tag($token);
82: $result.= &Apache::edit::handle_insert();
83: }
84: }
1.181 albertel 85: return $result;
86: }
87:
88: sub end_answer {
89: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
90: my $result;
1.208 albertel 91: if ($target eq 'edit') {
92: $result .= &Apache::edit::tag_end();
93: }
94:
1.181 albertel 95: undef($cur_name);
96: return $result;
97: }
98:
1.208 albertel 99: sub insert_answer {
100: return '
101: <answer>
102: <value></value>
103: </answer>';
104: }
105:
1.181 albertel 106: sub start_answergroup {
107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
108: my $result;
1.208 albertel 109: if ($target eq 'edit') {
110: $result.=&Apache::edit::tag_start($target,$token);
111: $result.=&Apache::edit::select_arg('Type:','type',
112: [['ordered', 'Ordered' ],
113: ['unordered','Unordered'],],
114: $token);
115: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
116: } elsif ($target eq 'modified') {
117: my $constructtag = &Apache::edit::get_new_args($token,$parstack,
118: $safeeval,'name',
119: 'type');
120: if ($constructtag) {
121: $result = &Apache::edit::rebuild_tag($token);
122: $result.= &Apache::edit::handle_insert();
123: }
124: }
1.181 albertel 125: return $result;
126: }
127:
128: sub end_answergroup {
129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
130: my $result;
1.194 albertel 131: if ($target eq 'web') {
132: if ( &Apache::response::show_answer() ) {
133: my $partid = $Apache::inputtags::part;
134: my $id = $Apache::inputtags::response[-1];
135: &set_answertext($Apache::lonhomework::history{"resource.$partid.$id.answername"},
136: $target,$token,$tagstack,$parstack,$parser,
137: $safeeval,-2);
138: }
1.208 albertel 139: } elsif ($target eq 'edit') {
140: $result .= &Apache::edit::tag_end();
1.194 albertel 141: }
1.181 albertel 142: return $result;
143: }
144:
1.208 albertel 145: sub insert_answergroup {
146: return '
147: <answergroup>
148: <answer>
149: <value></value>
150: </answer>
151: </answergroup>';
152: }
153:
1.181 albertel 154: sub start_value {
1.182 albertel 155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.181 albertel 156: my $result;
157: if ( $target eq 'web' || $target eq 'tex' ||
158: $target eq 'grade' || $target eq 'webgrade' ||
159: $target eq 'answer' || $target eq 'analyze' ) {
1.182 albertel 160: my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style);
1.181 albertel 161: $bodytext = &Apache::run::evaluate($bodytext,$safeeval,
162: $$parstack[-1]);
1.195 albertel 163:
164: push(@{ $answer{$cur_name}{'answers'} },[$bodytext]);
165:
1.208 albertel 166: } elsif ($target eq 'edit') {
167: $result.=&Apache::edit::tag_start($target,$token);
168: my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style);
169: $result.=&Apache::edit::editline($token->[1],$bodytext,undef,40).
170: &Apache::edit::end_row();
171: } elsif ($target eq 'modified') {
172: $result=$token->[4].&Apache::edit::modifiedfield('/value',$parser);
1.181 albertel 173: }
174: return $result;
175: }
176:
177: sub end_value {
178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
179: my $result;
1.208 albertel 180: if ($target eq 'edit') {
181: $result = &Apache::edit::end_table();
182: }
1.181 albertel 183: return $result;
184: }
185:
1.208 albertel 186: sub insert_value {
187: return '
188: <value></value>';
189: }
190:
1.195 albertel 191: sub start_vector {
192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
193: my $result;
194: if ( $target eq 'web' || $target eq 'tex' ||
195: $target eq 'grade' || $target eq 'webgrade' ||
196: $target eq 'answer' || $target eq 'analyze' ) {
197: my $bodytext = &Apache::lonxml::get_all_text("/vector",$parser,$style);
198: my @values = &Apache::run::run($bodytext,$safeeval,$$parstack[-1]);
199: if (@values == 1) {
200: @values = split(',',$values[0]);
201: }
202: push(@{ $answer{$cur_name}{'answers'} },\@values);
1.208 albertel 203: } elsif ($target eq 'edit') {
204: $result.=&Apache::edit::tag_start($target,$token);
205: my $bodytext = &Apache::lonxml::get_all_text("/vector",$parser,$style);
206: $result.=&Apache::edit::editline($token->[1],$bodytext,undef,40).
207: &Apache::edit::end_row();
208: } elsif ($target eq 'modified') {
209: $result=$token->[4].&Apache::edit::modifiedfield('/vector',$parser);
1.195 albertel 210: }
211: return $result;
212: }
213:
214: sub end_vector {
215: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
216: my $result;
1.208 albertel 217: if ($target eq 'edit') {
218: $result = &Apache::edit::end_table();
219: }
1.195 albertel 220: return $result;
221: }
222:
1.208 albertel 223: sub insert_vector {
224: return '
225: <value></value>';
226: }
227:
1.181 albertel 228: sub start_array {
1.182 albertel 229: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.181 albertel 230: my $result;
231: if ( $target eq 'web' || $target eq 'tex' ||
232: $target eq 'grade' || $target eq 'webgrade' ||
233: $target eq 'answer' || $target eq 'analyze' ) {
1.182 albertel 234: my $bodytext = &Apache::lonxml::get_all_text("/array",$parser,$style);
1.181 albertel 235: my @values = &Apache::run::evaluate($bodytext,$safeeval,
236: $$parstack[-1]);
237: push(@{ $answer{$cur_name}{'answers'} },@values);
238: }
239: return $result;
240: }
241:
242: sub end_array {
243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
244: my $result;
245: return $result;
246: }
247:
248: sub start_unit {
249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
250: my $result;
251: return $result;
252: }
253:
254: sub end_unit {
255: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
256: my $result;
257: return $result;
258: }
259:
1.89 albertel 260: sub start_numericalresponse {
261: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.195 albertel 262: &Apache::lonxml::register('Apache::caparesponse',
263: ('answer','answergroup','value','array','unit',
264: 'vector'));
1.208 albertel 265: push(@Apache::lonxml::namespace,'caparesponse');
1.89 albertel 266: my $id = &Apache::response::start_response($parstack,$safeeval);
267: my $result;
1.181 albertel 268: undef(%answer);
269: undef(%{$safeeval->varglob('LONCAPA::CAPAresponse_args')});
1.89 albertel 270: if ($target eq 'edit') {
271: $result.=&Apache::edit::tag_start($target,$token);
272: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
273: if ($token->[1] eq 'numericalresponse') {
1.122 albertel 274: $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
1.149 www 275: $token).
276: &Apache::loncommon::help_open_topic('numerical_wrong_answers');
1.89 albertel 277: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
278: &Apache::loncommon::help_open_topic('Physical_Units');
279: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
280: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
281: } elsif ($token->[1] eq 'formularesponse') {
282: $result.=&Apache::edit::text_arg('Sample Points:','samples',
283: $token,40).
284: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
285: }
1.248 www 286: $result.=&Apache::edit::text_arg('Pre-Processor Subroutine:','preprocess',
287: $token,10);
1.89 albertel 288: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
289: } elsif ($target eq 'modified') {
290: my $constructtag;
291: if ($token->[1] eq 'numericalresponse') {
292: $constructtag=&Apache::edit::get_new_args($token,$parstack,
293: $safeeval,'answer',
1.156 albertel 294: 'incorrect','unit',
1.248 www 295: 'format','preprocess');
1.89 albertel 296: } elsif ($token->[1] eq 'formularesponse') {
297: $constructtag=&Apache::edit::get_new_args($token,$parstack,
298: $safeeval,'answer',
1.250 www 299: 'samples','preprocess');
1.89 albertel 300: }
301: if ($constructtag) {
302: $result = &Apache::edit::rebuild_tag($token);
303: $result.=&Apache::edit::handle_insert();
1.22 albertel 304: }
1.89 albertel 305: } elsif ($target eq 'meta') {
306: $result=&Apache::response::meta_package_write('numericalresponse');
307: } elsif ($target eq 'answer' || $target eq 'grade') {
308: &Apache::response::reset_params();
1.96 albertel 309: } elsif ($target eq 'web') {
310: my $partid = $Apache::inputtags::part;
311: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
312: &Apache::lonxml::debug("Got unit $hideunit for $partid $id");
313: #no way to enter units, with radio buttons
1.238 www 314: if ((lc($hideunit) eq "yes") && ($Apache::lonhomework::type ne 'exam')) {
1.96 albertel 315: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
316: $safeeval);
317: if ($unit =~ /\S/) { $result.=" (in $unit) "; }
318: }
1.146 albertel 319: if ( &Apache::response::show_answer() ) {
1.195 albertel 320: &set_answertext($tag_internal_answer_name,$target,$token,$tagstack,
321: $parstack,$parser,$safeeval,-1);
1.194 albertel 322: }
323: }
324: return $result;
325: }
326:
327: sub set_answertext {
328: my ($name,$target,$token,$tagstack,$parstack,$parser,$safeeval,
329: $response_level) = @_;
330: &add_in_tag_answer($parstack,$safeeval,$response_level);
331:
1.206 albertel 332: if ($name eq '' || !ref($answer{$name})) {
333: if (ref($answer{$tag_internal_answer_name})) {
334: $name = $tag_internal_answer_name;
335: } else {
336: $name = (sort(keys(%answer)))[0];
337: }
338: }
1.194 albertel 339: return if ($name eq '' || !ref($answer{$name}));
340:
341: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
342: $safeeval,$response_level);
343: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval,
344: $response_level);
345:
346: &Apache::lonxml::debug("answer looks to be $name");
1.195 albertel 347: my @answertxt;
1.194 albertel 348: for (my $i=0; $i < scalar(@{$answer{$name}{'answers'}}); $i++) {
1.195 albertel 349: my $answertxt;
1.194 albertel 350: my $answer=$answer{$name}{'answers'}[$i];
1.195 albertel 351: foreach my $element (@$answer) {
352: if ( scalar(@$tagstack)
353: && $tagstack->[$response_level] ne 'numericalresponse') {
354: $answertxt.=$element.',';
1.194 albertel 355: } else {
1.195 albertel 356: my $format;
357: if ($#formats > 0) {
358: $format=$formats[$i];
359: } else {
360: $format=$formats[0];
361: }
362: if ($unit=~/\$/) { $format="\$".$format; $unit=~s/\$//g; }
363: if ($unit=~/\,/) { $format="\,".$format; $unit=~s/\,//g; }
364: my $formatted=&format_number($element,$format,$target,
365: $safeeval);
366: $answertxt.=' '.$formatted.',';
1.146 albertel 367: }
1.195 albertel 368:
369: }
370: chop($answertxt);
371: if ($target eq 'web') {
372: $answertxt.=" $unit ";
1.146 albertel 373: }
1.195 albertel 374:
375: push(@answertxt,$answertxt)
1.16 albertel 376: }
1.194 albertel 377:
378: my $id = $Apache::inputtags::response[-1];
1.195 albertel 379: $Apache::inputtags::answertxt{$id}=\@answertxt;
1.21 albertel 380: }
381:
1.195 albertel 382: sub setup_capa_args {
383: my ($safeeval,$parstack,$args,$response) = @_;
1.167 albertel 384: my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
1.195 albertel 385: undef(%{ $args_ref });
386:
387: foreach my $arg (@{$args}) {
1.167 albertel 388: $$args_ref{$arg}=
389: &Apache::lonxml::get_param($arg,$parstack,$safeeval);
390: }
391: foreach my $key (keys(%Apache::inputtags::params)) {
392: $$args_ref{$key}=$Apache::inputtags::params{$key};
393: }
1.195 albertel 394: &setup_capa_response($args_ref,$response);
395: return $args_ref;
396: }
397:
398: sub setup_capa_response {
399: my ($args_ref,$response) = @_;
400:
401: if (ref($response)) {
402: $$args_ref{'response'}=dclone($response);
403: } else {
404: $$args_ref{'response'}=dclone([$response]);
405: }
406: }
407:
408: sub check_submission {
409: my ($response,$partid,$id,$tag,$parstack,$safeeval,$ignore_sig)=@_;
1.247 www 410: my @args = ('type','tol','sig','format','unit','calc','samples','preprocess');
1.195 albertel 411: my $args_ref = &setup_capa_args($safeeval,$parstack,\@args,$response);
412:
413: my $hideunit=
414: &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
415: #no way to enter units, with radio buttons
1.167 albertel 416: if ($Apache::lonhomework::type eq 'exam' ||
417: lc($hideunit) eq "yes") {
418: delete($$args_ref{'unit'});
419: }
420: #sig fig don't make much sense either
421: if (($Apache::lonhomework::type eq 'exam' ||
1.171 albertel 422: &Apache::response::submitted('scantron') ||
423: $ignore_sig) &&
1.167 albertel 424: $tag eq 'numericalresponse') {
425: delete($$args_ref{'sig'});
426: }
427:
428: if ($tag eq 'formularesponse') {
1.199 www 429: if ($$args_ref{'samples'}) {
1.191 www 430: $$args_ref{'type'}='fml';
1.199 www 431: } else {
432: $$args_ref{'type'}='math';
433: }
1.167 albertel 434: } elsif ($tag eq 'numericalresponse') {
435: $$args_ref{'type'}='float';
1.233 raeburn 436: } elsif ($tag eq 'stringresponse') {
437: if ($$args_ref{'type'} eq '') {
438: $$args_ref{'type'} = 'ci';
439: }
1.167 albertel 440: }
1.233 raeburn 441:
1.194 albertel 442: &add_in_tag_answer($parstack,$safeeval);
443:
1.218 albertel 444: if (!%answer) {
445: &Apache::lonxml::error("No answers are defined");
446: }
447:
1.195 albertel 448: my (@final_awards,@final_msgs,@names);
1.181 albertel 449: foreach my $name (keys(%answer)) {
450: &Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} }));
1.194 albertel 451:
452: ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name});
1.195 albertel 453: &setup_capa_response($args_ref,$response);
454: use Time::HiRes;
455: my $t0 = [Time::HiRes::gettimeofday()];
1.181 albertel 456: my ($result,@msgs) =
1.233 raeburn 457: &Apache::run::run("&caparesponse_check_list()",$safeeval);
1.195 albertel 458: &Apache::lonxml::debug("checking $name $result with $response took ".&Time::HiRes::tv_interval($t0));
1.181 albertel 459: &Apache::lonxml::debug('msgs are '.join(':',@msgs));
460: my ($awards)=split(/:/,$result);
461: my @awards= split(/,/,$awards);
462: my ($ad, $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
463: push(@final_awards,$ad);
464: push(@final_msgs,$msg);
465: push(@names,$name);
466: }
467: my ($ad, $msg, $name) = &Apache::inputtags::finalizeawards(\@final_awards,
468: \@final_msgs,
469: \@names,1);
1.194 albertel 470: &Apache::lonxml::debug(" name of picked award is $name from ".join(', ',@names));
471: return($ad,$msg, $name);
472: }
473:
1.241 raeburn 474: sub stringresponse_gradechange {
475: my ($part,$id,$previous,$caller,$response,$ad,$type) = @_;
476: return unless (ref($previous) eq 'HASH');
477: my ($prevarray,$prevaward);
478: my %typenames = (
479: cs => 'Case sensitive',
480: ci => 'Case insensitive',
481: );
482: if ($caller eq 'cs') {
483: return unless (ref($previous->{'version'}) eq 'ARRAY');
484: $prevarray = $previous->{'version'};
485: $prevaward = $previous->{'award'};
486: } elsif ($caller eq 'ci') {
487: return unless (ref($previous->{'versionci'}) eq 'ARRAY');
488: $prevarray = $previous->{'versionci'};
489: $prevaward = $previous->{'awardci'};
490: } else {
491: return;
492: }
493: my $count=0;
494: my %count_lookup;
495: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
496: my $prefix = $i.":resource.$part";
497: next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
498: $count++;
499: $count_lookup{$i} = $count;
500: }
501: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
502: my %coursedesc = &Apache::lonnet::coursedescription($courseid);
503: my $cdom = $coursedesc{'domain'};
504: my $versions = ' (submissions: '.join(', ',map {$count_lookup{$_} } @{$prevarray}).')';
505: my $warning = "String Response ($typenames{$type}) grading discrepancy: award for response of $response changed from $prevaward".$versions." to $ad; user: $name:$domain in course: $courseid for part: $part response: $id for symb: $symb";
506: &Apache::lonnet::logthis($warning);
507: my $origmail = $Apache::lonnet::perlvar{'lonAdmEMail'};
508: my $recipients = &Apache::loncommon::build_recipient_list(undef,'errormail',
509: $cdom,$origmail);
510: if ($recipients ne '') {
511: &Apache::lonmsg::sendemail($recipients,'Stringresponse Grading Discrepancy',$warning);
512: }
513: return;
514: }
515:
1.194 albertel 516: sub add_in_tag_answer {
517: my ($parstack,$safeeval,$response_level) = @_;
518: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval,
519: $response_level);
520: &Apache::lonxml::debug('answer is'.join(':',@answer));
1.213 albertel 521: if (@answer && $answer[0] =~ /\S/) {
1.195 albertel 522: $answer{$tag_internal_answer_name}= {'type' => 'ordered',
523: 'answers' => [\@answer] };
1.194 albertel 524: }
1.167 albertel 525: }
526:
1.202 www 527: sub capa_formula_fix {
528: my ($expression)=@_;
529: return &Apache::response::implicit_multiplication($expression);
530: }
531:
1.89 albertel 532: sub end_numericalresponse {
533: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.208 albertel 534:
535: &Apache::lonxml::deregister('Apache::caparesponse',
536: ('answer','answergroup','value','array','unit',
537: 'vector'));
538: pop(@Apache::lonxml::namespace);
539:
1.90 albertel 540: my $increment=1;
1.89 albertel 541: my $result = '';
542: if (!$Apache::lonxml::default_homework_loaded) {
543: &Apache::lonxml::default_homework_load($safeeval);
1.34 albertel 544: }
1.167 albertel 545: my $partid = $Apache::inputtags::part;
546: my $id = $Apache::inputtags::response[-1];
1.125 albertel 547: my $tag;
1.190 albertel 548: my $safehole = new Safe::Hole;
1.168 albertel 549: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
1.190 albertel 550:
1.125 albertel 551: if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
1.162 albertel 552: if ( $target eq 'grade' && &Apache::response::submitted() ) {
1.140 albertel 553: &Apache::response::setup_params($tag,$safeeval);
1.95 albertel 554: if ($Apache::lonhomework::type eq 'exam' &&
1.190 albertel 555: (($tag eq 'formularesponse') || ($tag eq 'mathresponse'))) {
1.95 albertel 556: $increment=&Apache::response::scored_response($partid,$id);
557: } else {
558: my $response = &Apache::response::getresponse();
559: if ( $response =~ /[^\s]/) {
560: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
561: &Apache::lonxml::debug("submitted a $response<br>\n");
562: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
563:
1.162 albertel 564: if ( &Apache::response::submitted('scantron')) {
1.228 riegler 565: &add_in_tag_answer($parstack,$safeeval);
566: my ($values,$display)=&make_numerical_bubbles($partid,$id,
567: $target,$parstack,$safeeval);
568: $response=$values->[$response];
569: }
570: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
1.194 albertel 571: my ($ad,$msg,$name)=&check_submission($response,$partid,$id,
572: $tag,$parstack,
573: $safeeval);
1.167 albertel 574:
1.142 albertel 575: &Apache::lonxml::debug('ad is'.$ad);
576: if ($ad eq 'SIG_FAIL') {
577: my ($sig_u,$sig_l)=
578: &get_sigrange($Apache::inputtags::params{'sig'});
579: $msg=join(':',$msg,$sig_l,$sig_u);
580: &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
581: $Apache::inputtags::params{'sig'});
582: }
1.95 albertel 583: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
1.237 raeburn 584: if (($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
585: $ad eq 'EXACT_ANS')) {
586: if ($Apache::lonhomework::type eq 'survey') {
587: $ad='SUBMITTED';
588: } elsif ($Apache::lonhomework::type eq 'surveycred') {
589: $ad='SUBMITTED_CREDIT';
590: } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
591: $ad='ANONYMOUS';
592: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
593: $ad='ANONYMOUS_CREDIT';
594: }
595: }
1.95 albertel 596: &Apache::response::handle_previous(\%previous,$ad);
597: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
1.142 albertel 598: $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
1.194 albertel 599: $Apache::lonhomework::results{"resource.$partid.$id.answername"}=$name;
1.95 albertel 600: $result='';
1.90 albertel 601: }
1.89 albertel 602: }
603: } elsif ($target eq 'web' || $target eq 'tex') {
1.196 albertel 604: &check_for_answer_errors($parstack,$safeeval);
1.89 albertel 605: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
606: my $status = $Apache::inputtags::status['-1'];
607: if ($Apache::lonhomework::type eq 'exam') {
1.194 albertel 608: # FIXME support multi dimensional numerical problems
609: # in exam bubbles
1.184 albertel 610: my ($bubble_values,$bubble_display)=
611: &make_numerical_bubbles($partid,$id,$target,$parstack,
612: $safeeval);
613: my $number_of_bubbles = scalar(@{ $bubble_values });
1.89 albertel 614: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
615: $safeeval);
616: if ($target eq 'web') {
1.125 albertel 617: if ($tag eq 'numericalresponse') {
1.89 albertel 618: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
619: $result.= '<table border="1"><tr>';
1.116 albertel 620: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
1.90 albertel 621: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
1.116 albertel 622: my $checked='';
1.158 albertel 623: if ($previous eq $bubble_values->[$ind]) {
1.116 albertel 624: $checked=" checked='on' ";
625: }
1.90 albertel 626: $result.='<td><input type="radio" name="HWVAL_'.$id.
1.158 albertel 627: '" value="'.$bubble_values->[$ind].'" '.$checked
1.116 albertel 628: .' /><b>'.$alphabet[$ind].'</b>: '.
1.158 albertel 629: $bubble_display->[$ind].'</td>';
1.89 albertel 630: }
631: $result.='</tr></table>';
632: }
633: } elsif ($target eq 'tex') {
1.107 sakharuk 634: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
1.89 albertel 635: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
636: }
1.125 albertel 637: if ($tag eq 'numericalresponse') {
1.251 foxr 638: $result .= &make_horizontal_latex_bubbles($bubble_values, $bubble_display,
639: '$\bigcirc$');
1.89 albertel 640: } else {
1.188 albertel 641: $increment = &Apache::response::repetition();
1.89 albertel 642: }
643: }
644: }
1.256 ! raeburn 645:
1.212 albertel 646: &Apache::response::setup_prior_tries_hash(\&format_prior_response_numerical);
1.89 albertel 647: } elsif ($target eq 'edit') {
648: $result.='</td></tr>'.&Apache::edit::end_table;
649: } elsif ($target eq 'answer' || $target eq 'analyze') {
1.167 albertel 650: my $part_id="$partid.$id";
1.89 albertel 651: if ($target eq 'analyze') {
652: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
1.125 albertel 653: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
1.117 albertel 654: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
1.161 albertel 655: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
1.117 albertel 656: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
1.154 albertel 657: &Apache::response::check_if_computed($token,$parstack,
658: $safeeval,'answer');
1.89 albertel 659: }
1.125 albertel 660: if (scalar(@$tagstack)) {
1.140 albertel 661: &Apache::response::setup_params($tag,$safeeval);
1.125 albertel 662: }
1.194 albertel 663: &add_in_tag_answer($parstack,$safeeval);
1.58 sakharuk 664: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
1.194 albertel 665:
1.58 sakharuk 666: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
1.89 albertel 667:
668: if ($target eq 'answer') {
1.195 albertel 669: $result.=&Apache::response::answer_header($tag,undef,
670: scalar(keys(%answer)));
1.185 albertel 671: if ($tag eq 'numericalresponse'
672: && $Apache::lonhomework::type eq 'exam') {
1.184 albertel 673: my ($bubble_values,undef,$correct) = &make_numerical_bubbles($partid,
674: $id,$target,$parstack,$safeeval);
675: $result.=&Apache::response::answer_part($tag,$correct);
676: }
1.89 albertel 677: }
1.194 albertel 678: foreach my $name (sort(keys(%answer))) {
679: my @answers = @{ $answer{$name}{'answers'} };
1.200 albertel 680: if ($target eq 'analyze') {
681: foreach my $info ('answer','ans_high','ans_low','format') {
682: $Apache::lonhomework::analyze{"$part_id.$info"}{$name}=[];
683: }
684: }
1.194 albertel 685: my ($sigline,$tolline);
1.195 albertel 686: if ($name ne $tag_internal_answer_name
687: || scalar(keys(%answer)) > 1) {
688: $result.=&Apache::response::answer_part($tag,$name);
689: }
1.194 albertel 690: for(my $i=0;$i<=$#answers;$i++) {
691: my $ans=$answers[$i];
692: my $fmt=$formats[0];
693: if (@formats && $#formats) {$fmt=$formats[$i];}
694: my ($sighigh,$siglow);
695: if ($Apache::inputtags::params{'sig'}) {
696: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
697: }
1.195 albertel 698: my @vector;
699: if (ref($ans)) {
700: @vector = @{ $ans };
701: } else {
702: @vector = ($ans);
1.194 albertel 703: }
1.200 albertel 704: my @all_answer_info;
705: foreach my $element (@vector) {
706: my ($high,$low);
707: if ($Apache::inputtags::params{'tol'}) {
708: ($high,$low)=&get_tolrange($element,$Apache::inputtags::params{'tol'});
709: }
710: if ($target eq 'answer') {
1.195 albertel 711: if ($fmt && $tag eq 'numericalresponse') {
712: $fmt=~s/e/E/g;
713: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
714: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
715: $element = &format_number($element,$fmt,$target,$safeeval);
716: #if ($high) {
717: # $high=&format_number($high,$fmt,$target,$safeeval);
718: # $low =&format_number($low,$fmt,$target,$safeeval);
719: #}
720: }
721: if ($high && $tag eq 'numericalresponse') {
1.224 www 722: $element.='; ['.$low.'; '.$high.']';
1.195 albertel 723: $tolline .= "[$low, $high]";
724: }
725: if (defined($sighigh) && $tag eq 'numericalresponse') {
726: if ($env{'form.answer_output_mode'} eq 'tex') {
1.224 www 727: $element.= "; Sig $siglow - $sighigh";
1.195 albertel 728: } else {
729: $element.= " Sig <i>$siglow - $sighigh</i>";
730: $sigline .= "[$siglow, $sighigh]";
731: }
1.194 albertel 732: }
1.195 albertel 733: push(@all_answer_info,$element);
1.200 albertel 734:
735: } elsif ($target eq 'analyze') {
736: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"}{$name}[$i] }, $element);
737: if ($high) {
738: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"}{$name}[$i] }, $high);
739: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"}{$name}[$i] }, $low);
740: }
741: if ($fmt) {
742: push (@{ $Apache::lonhomework::analyze{"$part_id.format"}{$name}[$i] }, $fmt);
743: }
1.194 albertel 744: }
1.200 albertel 745: }
746: if ($target eq 'answer') {
1.223 www 747: $result.= &Apache::response::answer_part($tag,join('; ',@all_answer_info));
1.194 albertel 748: }
749: }
750:
751: my @fmt_ans;
752: for(my $i=0;$i<=$#answers;$i++) {
753: my $ans=$answers[$i];
754: my $fmt=$formats[0];
755: if (@formats && $#formats) {$fmt=$formats[$i];}
1.195 albertel 756: foreach my $element (@$ans) {
757: if ($fmt && $tag eq 'numericalresponse') {
758: $fmt=~s/e/E/g;
759: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
760: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
761: $element = &format_number($element,$fmt,$target,
762: $safeeval);
763: if ($fmt=~/\$/ && $unit!~/\$/) { $element=~s/\$//; }
764: }
1.194 albertel 765: }
1.195 albertel 766: push(@fmt_ans,join(',',@$ans));
1.194 albertel 767: }
1.195 albertel 768: my $response=\@fmt_ans;
769:
1.194 albertel 770: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.
771: $id.'.turnoffunit');
772: if ($unit ne '' &&
773: ! ($Apache::lonhomework::type eq 'exam' ||
774: lc($hideunit) eq "yes") ) {
775: my $cleanunit=$unit;
776: $cleanunit=~s/\$\,//g;
1.195 albertel 777: foreach my $ans (@fmt_ans) {
778: $ans.=" $cleanunit";
779: }
1.60 sakharuk 780: }
1.194 albertel 781: my ($ad,$msg)=&check_submission($response,$partid,$id,$tag,
782: $parstack,$safeeval);
783: if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
784: my $error;
785: if ($tag eq 'formularesponse') {
1.236 bisitz 786: $error=&mt("Computer's answer is incorrect ([_1]).",'"'.join(', ',@$response).'"');
1.194 albertel 787: } else {
788: # answer failed check if it is sig figs that is failing
789: my ($ad,$msg)=&check_submission($response,$partid,$id,
790: $tag,$parstack,
791: $safeeval,1);
1.236 bisitz 792: $error=&mt("Computer's answer is incorrect ([_1]).",'"'.join(', ',@$response).'"').' ';
1.194 albertel 793: if ($sigline ne '') {
1.236 bisitz 794: $error.=&mt('It is likely that the tolerance range [_1] or significant figures [_2] need to be adjusted.',$tolline,$sigline);
1.98 sakharuk 795: } else {
1.236 bisitz 796: $error.=&mt('It is likely that the tolerance range [_1] needs to be adjusted.',$tolline);
1.98 sakharuk 797: }
798: }
1.194 albertel 799: if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
800: &Apache::lonxml::error($error);
801: } else {
802: &Apache::lonxml::warning($error);
1.165 albertel 803: }
1.79 sakharuk 804: }
1.176 albertel 805:
1.194 albertel 806: if (defined($unit) and ($unit ne '') and
807: $tag eq 'numericalresponse') {
808: if ($target eq 'answer') {
809: if ($env{'form.answer_output_mode'} eq 'tex') {
810: $result.=&Apache::response::answer_part($tag,
811: " Unit: $unit ");
812: } else {
813: $result.=&Apache::response::answer_part($tag,
814: "Unit: <b>$unit</b>");
815: }
816: } elsif ($target eq 'analyze') {
817: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
1.171 albertel 818: }
1.167 albertel 819: }
1.194 albertel 820: if ($tag eq 'formularesponse' && $target eq 'answer') {
821: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
822: $result.=&Apache::response::answer_part($tag,$samples);
1.89 albertel 823: }
1.195 albertel 824: $result.=&Apache::response::next_answer($tag,$name);
1.89 albertel 825: }
826: if ($target eq 'answer') {
1.125 albertel 827: $result.=&Apache::response::answer_footer($tag);
1.89 albertel 828: }
1.69 sakharuk 829: }
1.121 sakharuk 830: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1.90 albertel 831: $target eq 'tex' || $target eq 'analyze') {
1.221 raeburn 832: if (($tag eq 'formularesponse') && ($target eq 'analyze')) {
833: my $type = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.type');
834: if ($type eq 'exam') {
835: $increment = &Apache::response::repetition();
836: }
837: }
1.220 albertel 838: &Apache::lonxml::increment_counter($increment,"$partid.$id");
839: if ($target eq 'analyze') {
840: &Apache::lonhomework::set_bubble_lines();
841: }
1.90 albertel 842: }
1.196 albertel 843: &Apache::response::end_response();
1.89 albertel 844: return $result;
1.90 albertel 845: }
846:
1.212 albertel 847: sub format_prior_response_numerical {
848: my ($mode,$answer) = @_;
1.213 albertel 849: if (ref($answer)) {
850: my $result = '<table class="LC_prior_numerical"><tr>';
851: foreach my $element (@{ $answer }) {
852: $result.= '<td><span class="LC_prior_numerical">'.
853: &HTML::Entities::encode($element,'"<>&').'</span></td>';
854: }
855: $result.='</tr></table>';
856: return $result;
857: }
1.212 albertel 858: return '<span class="LC_prior_numerical">'.
859: &HTML::Entities::encode($answer,'"<>&').'</span>';
860:
1.209 albertel 861: }
862:
1.196 albertel 863: sub check_for_answer_errors {
864: my ($parstack,$safeeval) = @_;
865: &add_in_tag_answer($parstack,$safeeval);
866: my %counts;
867: foreach my $name (keys(%answer)) {
868: push(@{$counts{scalar(@{$answer{$name}{'answers'}})}},$name);
869: }
870: if (scalar(keys(%counts)) > 1) {
871: my $counts = join(' ',map {
872: my $count = $_;
873: &mt("Answers [_1] had [_2] components.",
874: '<tt>'.join(', ',@{$counts{$count}}).'</tt>',
875: $count);
876: } (sort(keys(%counts))));
877: &Apache::lonxml::error(&mt("All answers must have the same number of components. Varying numbers of answers were seen. ").$counts);
878: }
879: my $expected_number_of_inputs = (keys(%counts))[0];
1.214 albertel 880: if ( $expected_number_of_inputs > 0
881: && $expected_number_of_inputs != scalar(@Apache::inputtags::inputlist)) {
1.196 albertel 882: &Apache::lonxml::error(&mt("Expected [_1] input fields, but there were only [_2] seen.",
883: $expected_number_of_inputs,
884: scalar(@Apache::inputtags::inputlist)));
885: }
886: }
887:
1.90 albertel 888: sub get_table_sizes {
1.128 sakharuk 889: my ($number_of_bubbles,$rbubble_values)=@_;
890: my $scale=2; #mm for one digit
891: my $cell_width=0;
892: foreach my $member (@$rbubble_values) {
893: my $cell_width_real=0;
1.160 albertel 894: if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) {
1.138 sakharuk 895: $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
896: } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
1.128 sakharuk 897: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
1.138 sakharuk 898: } elsif ($member=~/(\d*)\.(\d*)/) {
1.132 sakharuk 899: $cell_width_real=(length($1)+length($2)+3)*$scale;
1.128 sakharuk 900: } else {
1.138 sakharuk 901: $cell_width_real=(length($member)+1)*$scale*0.9;
1.128 sakharuk 902: }
903: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
1.90 albertel 904: }
1.132 sakharuk 905: $cell_width+=8;
1.130 sakharuk 906: my $textwidth;
1.166 albertel 907: if ($env{'form.textwidth'} ne '') {
908: $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
1.132 sakharuk 909: $textwidth=$1.'.'.$2;
1.130 sakharuk 910: } else {
1.166 albertel 911: $env{'form.textwidth'}=~/(\d+)\.?(\d*)/;
1.132 sakharuk 912: $textwidth=$1.'.'.$2;
1.130 sakharuk 913: }
1.128 sakharuk 914: my $bubbles_per_line=int($textwidth/$cell_width);
1.151 sakharuk 915: if ($bubbles_per_line > $number_of_bubbles) {
916: $bubbles_per_line=$number_of_bubbles;
1.216 albertel 917: } elsif (($bubbles_per_line > $number_of_bubbles/2)
918: && ($number_of_bubbles % 2==0)) {
919: $bubbles_per_line=$number_of_bubbles/2;
920: }
921: if ($bubbles_per_line < 1) {
922: $bubbles_per_line=1;
923: }
1.128 sakharuk 924: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
1.90 albertel 925: my @table_range = ();
1.128 sakharuk 926: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
927: if ($number_of_bubbles % $bubbles_per_line) {
1.90 albertel 928: $number_of_tables++;
1.128 sakharuk 929: push @table_range,($number_of_bubbles % $bubbles_per_line);
1.90 albertel 930: }
1.128 sakharuk 931: $cell_width-=8;
1.136 sakharuk 932: $cell_width=$cell_width*3/4;
1.128 sakharuk 933: return ($cell_width,$number_of_tables,@table_range);
1.90 albertel 934: }
935:
936: sub format_number {
1.153 albertel 937: my ($number,$format,$target,$safeeval)=@_;
1.90 albertel 938: my $ans;
1.153 albertel 939: if ($format eq '') {
1.90 albertel 940: #What is the number? (integer,decimal,floating point)
1.187 albertel 941: if ($number=~/^(\d*\.?\d*)(E|e)[+\-]?(\d*)$/) {
1.113 sakharuk 942: $format = '3e';
1.90 albertel 943: } elsif ($number=~/^(\d*)\.(\d*)$/) {
944: $format = '4f';
945: } elsif ($number=~/^(\d*)$/) {
946: $format = 'd';
947: }
948: }
1.156 albertel 949: if (!$Apache::lonxml::default_homework_loaded) {
950: &Apache::lonxml::default_homework_load($safeeval);
951: }
1.153 albertel 952: $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
1.90 albertel 953: return $ans;
954: }
955:
956: sub make_numerical_bubbles {
1.184 albertel 957: my ($part,$id,$target,$parstack,$safeeval) =@_;
1.215 albertel 958:
959: if (!%answer) {
960: &Apache::lonxml::error(&mt("No answers defined for response [_1] in part [_2] to make bubbles for.",$id,$part));
961: return ([],[],undef);
962: }
1.184 albertel 963:
964: my $number_of_bubbles =
965: &Apache::response::get_response_param($part.'_'.$id,'numbubbles',8);
966:
1.252 foxr 967: #
968: # Fixes for BZ 6519 - number of bubbles <= 0 or non-integer.
969: #
970: $number_of_bubbles = int($number_of_bubbles + 0.5);
971: if ($number_of_bubbles <= 0) {
972: $number_of_bubbles = 8;
973: }
974:
975:
1.184 albertel 976: my ($format)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
1.201 albertel 977: my $name = (exists($answer{$tag_internal_answer_name})
978: ? $tag_internal_answer_name
979: : (sort(keys(%answer)))[0]);
980:
981: if ( scalar(@{$answer{$name}{'answers'}}) > 1) {
982: &Apache::lonxml::error("Only answers with 1 component are supported in exam mode");
983: }
984: if (scalar(@{$answer{$name}{'answers'}[0]}) > 1) {
985: &Apache::lonxml::error("Vector answers are unsupported in exam mode.");
986: }
987:
988: my $answer = $answer{$name}{'answers'}[0][0];
1.184 albertel 989: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,
990: $safeeval);
991: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
992:
1.158 albertel 993: my @bubble_values=();
1.184 albertel 994: my @alphabet=('A'..'Z');
995:
996: &Apache::lonxml::debug("answer is $answer incorrect is @incorrect");
1.119 albertel 997: my @oldseed=&Math::Random::random_get_seed();
1.184 albertel 998: if (@incorrect) {
999: &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1 gt $number_of_bubbles));
1000: if (defined($incorrect[0]) &&
1001: scalar(@incorrect)+1 >= $number_of_bubbles) {
1002: &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1).":$number_of_bubbles");
1.117 albertel 1003: &Apache::response::setrandomnumber();
1.184 albertel 1004: my @rand_inc=&Math::Random::random_permutation(@incorrect);
1.117 albertel 1005: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
1006: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
1.184 albertel 1007: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": which are :".join(':',@bubble_values));
1.119 albertel 1008: &Math::Random::random_set_seed(@oldseed);
1.184 albertel 1009:
1010: my $correct;
1011: for(my $i=0; $i<=$#bubble_values;$i++) {
1012: if ($bubble_values[$i] eq $answer) {
1013: $correct = $alphabet[$i];
1014: last;
1015: }
1016: }
1017:
1.134 albertel 1018: if (defined($format) && $format ne '') {
1.158 albertel 1019: my @bubble_display;
1.137 albertel 1020: foreach my $value (@bubble_values) {
1.158 albertel 1021: push(@bubble_display,
1022: &format_number($value,$format,$target,$safeeval));
1.134 albertel 1023: }
1.184 albertel 1024: return (\@bubble_values,\@bubble_display,$correct);
1.158 albertel 1025: } else {
1.184 albertel 1026: return (\@bubble_values,\@bubble_values,$correct);
1.134 albertel 1027: }
1.117 albertel 1028: }
1.184 albertel 1029: if (defined($incorrect[0]) &&
1030: scalar(@incorrect)+1 < $number_of_bubbles) {
1031: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them (".join(',',@incorrect).").");
1.127 albertel 1032: }
1.117 albertel 1033: }
1.90 albertel 1034: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
1.126 albertel 1035: my @powers = (1..$number_of_bubbles);
1.90 albertel 1036: &Apache::response::setrandomnumber();
1037: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
1038: my $power = $powers[$ind];
1039: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
1040: my $factor = $factors[$ind];
1.158 albertel 1041: my @bubble_display;
1.222 www 1042: my $answerfactor=$answer;
1043: if ($answer==0) {
1044: $answerfactor=&Math::Random::random_uniform_integer(1,1,100)/
1045: &Math::Random::random_uniform_integer(1,1,10);
1046: }
1.90 albertel 1047: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
1.222 www 1048: $bubble_values[$ind] = $answerfactor*($factor**($power-$powers[$#powers-$ind]));
1.158 albertel 1049: $bubble_display[$ind] = &format_number($bubble_values[$ind],
1.153 albertel 1050: $format,$target,$safeeval);
1.90 albertel 1051: }
1.184 albertel 1052: my $correct = $alphabet[$number_of_bubbles-$power];
1.222 www 1053: if ($answer==0) {
1054: $correct='A';
1055: $bubble_values[0]=0;
1056: $bubble_display[0] = &format_number($bubble_values[0],
1057: $format,$target,$safeeval);
1058: }
1.119 albertel 1059: &Math::Random::random_set_seed(@oldseed);
1.184 albertel 1060: return (\@bubble_values,\@bubble_display,$correct);
1.51 albertel 1061: }
1062:
1.251 foxr 1063: ##
1064: # Produce LaTeX bubbles laid out horizontally given a set of bubble values:
1065: #
1066: # @param bubble_values - reference to an array of bubble 'values'
1067: # @param bubble_display - reference to the array of texts to display to the user
1068: # for each bubble_value (this is mostly for numerical response
1069: # when the displayed value may not be an exact
1070: # representation of the bubble value.
1071: # @param bubble_fragment- The LaTeX fragment that will be plugged in to make
1072: # the bubble itself. Note that the code will autonomously
1073: # label each bubble with a lable...and that it's perfectly
1074: # acceptable to use "" for the bubble_fragment.
1075: #
1076: # @return string - the LaTeX fragment that produces the bubbles.
1077: #
1078: sub make_horizontal_latex_bubbles {
1079: my ($bubble_values, $bubble_display, $bubble_fragment) = @_;
1080: my $result;
1081:
1082: my $number_of_bubbles = scalar(@{$bubble_values});
1083:
1084: # Get the number of rows and columns in each row of the bubble
1085: # table:
1086:
1087: my ($celllength, $number_of_tables, @table_range) =
1088: &get_table_sizes($number_of_bubbles, $bubble_display);
1089:
1090: my $j=0;
1091: my $cou=0;
1092: $result.='\vskip 2mm \noindent ';
1093: $result .= '\textbf{'.$Apache::lonxml::counter.'.} \vskip -3mm ';
1094:
1095: for (my $i=0;$i<$number_of_tables;$i++) {
1096: if ($i == 0) {
1097: $result .= '\vskip -1mm ';
1098: } else {
1099: $result .= '\vskip 1mm ';
1100: }
1101: $result.='\noindent \setlength{\tabcolsep}{2 mm}\hskip 2pc\begin{tabular}{';
1102: for (my $ind=0;$ind<$table_range[$j];$ind++) {
1103: $result.='p{4 mm}p{'.$celllength.' mm}';
1104: }
1105: $result.='}';
1106: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
1107: $result.='\hskip -4 mm {\small \textbf{ '.$alphabet[$ind].'}}'
1108: . $bubble_fragment
1109: . '& \hskip -3 mm {\small '.$bubble_display->[$ind].'} ';
1110: if ($ind != $cou+$table_range[$j]-1) {
1111: $result.=' & ';
1112: }
1113: }
1114: $cou += $table_range[$j];
1115: $j++;
1116: $result.='\\\\\end{tabular}\vskip 0 mm ';
1117: }
1118: return $result;
1119: }
1120:
1.51 albertel 1121: sub get_tolrange {
1.89 albertel 1122: my ($ans,$tol)=@_;
1123: my ($high,$low);
1124: if ($tol =~ /%$/) {
1125: chop($tol);
1126: my $change=$ans*($tol/100.0);
1127: $high=$ans+$change;
1128: $low=$ans-$change;
1129: } else {
1130: $high=$ans+$tol;
1131: $low=$ans-$tol;
1132: }
1133: return ($high,$low);
1.52 albertel 1134: }
1135:
1136: sub get_sigrange {
1.89 albertel 1137: my ($sig)=@_;
1.195 albertel 1138: #&Apache::lonxml::debug("Got a sig of :$sig:");
1.166 albertel 1139: my $courseid=$env{'request.course.id'};
1.219 albertel 1140: if ($env{'request.state'} ne 'construct'
1141: && lc($env{"course.$courseid.disablesigfigs"}) eq 'yes') {
1.147 albertel 1142: return (15,0);
1143: }
1.89 albertel 1144: my $sig_lbound;
1145: my $sig_ubound;
1146: if ($sig eq '') {
1147: $sig_lbound = 0; #SIG_LB_DEFAULT
1148: $sig_ubound =15; #SIG_UB_DEFAULT
1149: } else {
1150: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
1.145 albertel 1151: if (!defined($sig_lbound)) {
1.89 albertel 1152: $sig_lbound = 0; #SIG_LB_DEFAULT
1153: $sig_ubound =15; #SIG_UB_DEFAULT
1154: }
1.145 albertel 1155: if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
1.133 albertel 1156: }
1157: if (($sig_ubound<$sig_lbound) ||
1158: ($sig_lbound > 15) ||
1159: ($sig =~/(\+|-)/ ) ) {
1160: my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
1.166 albertel 1161: if ($env{'request.state'} eq 'construct') {
1.133 albertel 1162: $errormsg.=
1163: &Apache::loncommon::help_open_topic('Significant_Figures');
1164: }
1165: &Apache::lonxml::error($errormsg);
1.52 albertel 1166: }
1.89 albertel 1167: return ($sig_ubound,$sig_lbound);
1.34 albertel 1168: }
1169:
1.212 albertel 1170: sub format_prior_response_string {
1171: my ($mode,$answer) =@_;
1172: return '<span class="LC_prior_string">'.
1173: &HTML::Entities::encode($answer,'"<>&').'</span>';
1.211 albertel 1174: }
1175:
1.34 albertel 1176: sub start_stringresponse {
1.89 albertel 1177: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1178: my $result;
1.122 albertel 1179: my $id = &Apache::response::start_response($parstack,$safeeval);
1.246 raeburn 1180: undef(%answer);
1.89 albertel 1181: if ($target eq 'meta') {
1182: $result=&Apache::response::meta_package_write('stringresponse');
1.122 albertel 1183: } elsif ($target eq 'edit') {
1184: $result.=&Apache::edit::tag_start($target,$token);
1185: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
1186: $result.=&Apache::edit::select_arg('Type:','type',
1187: [['cs','Case Sensitive'],['ci','Case Insensitive'],
1188: ['mc','Case Insensitive, Any Order'],
1189: ['re','Regular Expression']],$token);
1.152 albertel 1190: $result.=&Apache::edit::text_arg('String to display for answer:',
1191: 'answerdisplay',$token);
1.248 www 1192: $result.=&Apache::edit::text_arg('Pre-Processor Subroutine:','preprocess',
1193: $token,10);
1.122 albertel 1194: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1195: } elsif ($target eq 'modified') {
1.146 albertel 1196: my $constructtag;
1197: $constructtag=&Apache::edit::get_new_args($token,$parstack,
1198: $safeeval,'answer',
1.248 www 1199: 'type','answerdisplay','preprocess');
1.146 albertel 1200: if ($constructtag) {
1201: $result = &Apache::edit::rebuild_tag($token);
1202: $result.=&Apache::edit::handle_insert();
1203: }
1204: } elsif ($target eq 'web') {
1205: if ( &Apache::response::show_answer() ) {
1.152 albertel 1206: my $answer=
1207: &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
1208: if (!defined $answer || $answer eq '') {
1209: $answer=
1210: &Apache::lonxml::get_param('answer',$parstack,$safeeval);
1211: }
1.195 albertel 1212: $Apache::inputtags::answertxt{$id}=[$answer];
1.146 albertel 1213: }
1.122 albertel 1214: } elsif ($target eq 'answer' || $target eq 'grade') {
1215: &Apache::response::reset_params();
1.89 albertel 1216: }
1217: return $result;
1.34 albertel 1218: }
1219:
1220: sub end_stringresponse {
1.122 albertel 1221: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.189 albertel 1222:
1.122 albertel 1223: my $result = '';
1224: my $part=$Apache::inputtags::part;
1225: my $id=$Apache::inputtags::response[-1];
1226: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
1227: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
1.129 www 1228: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
1.122 albertel 1229: &Apache::lonxml::debug("current $answer ".$token->[2]);
1230: if (!$Apache::lonxml::default_homework_loaded) {
1231: &Apache::lonxml::default_homework_load($safeeval);
1232: }
1.162 albertel 1233: if ( $target eq 'grade' && &Apache::response::submitted() ) {
1.140 albertel 1234: &Apache::response::setup_params('stringresponse',$safeeval);
1.122 albertel 1235: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
1236: if ($Apache::lonhomework::type eq 'exam' ||
1.162 albertel 1237: &Apache::response::submitted('scantron')) {
1.189 albertel 1238: &Apache::response::scored_response($part,$id);
1239:
1.122 albertel 1240: } else {
1241: my $response = &Apache::response::getresponse();
1242: if ( $response =~ /[^\s]/) {
1243: my %previous = &Apache::response::check_for_previous($response,
1.241 raeburn 1244: $part,$id,
1245: undef,$type);
1.122 albertel 1246: &Apache::lonxml::debug("submitted a $response<br>\n");
1247: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
1248: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
1249: $response;
1.142 albertel 1250: my ($ad,$msg);
1.122 albertel 1251: if ($type eq 're' ) {
1252: # if the RE wasn't in a var it likely got munged,
1253: # thus grab it from the var directly
1254: # my $testans=$token->[2]->{'answer'};
1255: # if ($testans !~ m/^\s*\$/) {
1256: # $answer=$token->[2]->{'answer'};
1257: # }
1.143 albertel 1258: ${$safeeval->varglob('LONCAPA::response')}=$response;
1.248 www 1259: my $preprocess=&Apache::lonxml::get_param('preprocess',$parstack,$safeeval);
1260: $preprocess=~s/^\&//;
1261: if (defined($preprocess)) {
1262: &Apache::run::run('$LONCAPA::response=&'.$preprocess.'($LONCAPA::response);',$safeeval);
1263: }
1.179 albertel 1264: $result = &Apache::run::run('if ($LONCAPA::response=~m'.$answer.') { return 1; } else { return 0; }',$safeeval);
1.122 albertel 1265: &Apache::lonxml::debug("current $response");
1266: &Apache::lonxml::debug("current $answer");
1267: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
1268: } else {
1.248 www 1269: my @args = ('type','preprocess');
1.195 albertel 1270: my $args_ref = &setup_capa_args($safeeval,$parstack,
1271: \@args,$response);
1.233 raeburn 1272: if ($$args_ref{'type'} eq '') {
1273: $$args_ref{'type'} = 'ci';
1274: }
1.195 albertel 1275: &add_in_tag_answer($parstack,$safeeval);
1.243 raeburn 1276: my (@final_awards,@final_msgs,@names,%ansstring);
1.195 albertel 1277: foreach my $name (keys(%answer)) {
1278: &Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} }));
1279: ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name});
1.233 raeburn 1280: my ($result, @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
1.241 raeburn 1281: if ($$args_ref{'type'} =~ /^c[si]$/) {
1.243 raeburn 1282: $ansstring{$name} = pop(@msgs);
1.242 raeburn 1283: my $control_chars_removed = pop(@msgs);
1.241 raeburn 1284: my $error = pop(@msgs);
1.242 raeburn 1285: if (($error ne '') ||
1.245 raeburn 1286: ($control_chars_removed)) {
1.243 raeburn 1287: my ($symb,$courseid,$sdomain,$sname) =
1.241 raeburn 1288: &Apache::lonnet::whichuser();
1.245 raeburn 1289: if ($control_chars_removed) {
1.242 raeburn 1290: my $showresponse = $response;
1291: if ($response =~ /[\000-\037]/) {
1292: $response =~ s/[\000-\037]//g;
1293: }
1294: if ($showresponse =~ /[\r\n\f]/) {
1295: my @lines = split(/[\r\n\f]+/,$showresponse);
1296: $showresponse = join('\\n',@lines);
1297: }
1.243 raeburn 1298: &Apache::lonnet::logthis("Stringresponse grading: control characters stripped from submission ".$showresponse." for $sname:$sdomain in $courseid for part: $part response: $id and symb: $symb");
1.242 raeburn 1299: $Apache::lonhomework::results{"resource.$part.$id.submission"} = $response;
1300: }
1301: if ($error ne '') {
1.243 raeburn 1302: &Apache::lonnet::logthis("Stringresponse grading error: $error for $sname:$sdomain in $courseid for part: $part response: $id and symb: $symb");
1.242 raeburn 1303: }
1.241 raeburn 1304: }
1305: }
1.195 albertel 1306: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
1307: my ($awards)=split(/:/,$result);
1308: my (@awards) = split(/,/,$awards);
1309: ($ad,$msg) =
1310: &Apache::inputtags::finalizeawards(\@awards,\@msgs);
1311: push(@final_awards,$ad);
1312: push(@final_msgs,$msg);
1313: push(@names,$name);
1314: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
1.122 albertel 1315: }
1.240 raeburn 1316: ($ad, $msg, my $name) =
1.195 albertel 1317: &Apache::inputtags::finalizeawards(\@final_awards,
1318: \@final_msgs,
1319: \@names,1);
1.243 raeburn 1320: if (keys(%ansstring) > 0) {
1321: $Apache::lonhomework::results{"resource.$part.$id.answerstring"} = &Apache::lonnet::hash2str(%ansstring);
1322: }
1.122 albertel 1323: }
1.237 raeburn 1324: if (($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
1325: $ad eq 'EXACT_ANS')) {
1326: if ($Apache::lonhomework::type eq 'survey') {
1327: $ad='SUBMITTED';
1328: } elsif ($Apache::lonhomework::type eq 'surveycred') {
1329: $ad='SUBMITTED_CREDIT';
1330: } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
1331: $ad='ANONYMOUS';
1332: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
1333: $ad='ANONYMOUS_CREDIT';
1334: }
1335: }
1.244 raeburn 1336: unless (($env{'request.state'} eq 'construct') ||
1337: ($Apache::lonhomework::type eq 'randomizetry')) {
1338: if (($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' || $ad eq 'EXACT_ANS')) {
1339: if ($previous{'used'}) {
1340: if ($ad ne $previous{'award'}) {
1341: if (($previous{'award'} eq 'INCORRECT' ||
1342: $previous{'award'} eq 'APPROX_ANS' ||
1343: $previous{'award'} eq 'EXACT_ANS')) {
1344: &stringresponse_gradechange($part,$id,\%previous,
1345: 'cs',$response,$ad,$type);
1346: }
1347: }
1348: } elsif ($previous{'usedci'}) {
1349: if ($ad ne $previous{'awardci'}) {
1350: if (($previous{'awardci'} eq 'INCORRECT' ||
1351: $previous{'awardci'} eq 'APPROX_ANS' ||
1352: $previous{'awardci'} eq 'EXACT_ANS')) {
1353: &stringresponse_gradechange($part,$id,\%previous,
1354: 'ci',$response,$ad,$type);
1355: }
1356: }
1.241 raeburn 1357: }
1358: }
1359: }
1.122 albertel 1360: &Apache::response::handle_previous(\%previous,$ad);
1361: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
1.142 albertel 1362: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
1.122 albertel 1363: }
1364: }
1365: } elsif ($target eq 'answer' || $target eq 'analyze') {
1.200 albertel 1366: &add_in_tag_answer($parstack,$safeeval);
1.122 albertel 1367: if ($target eq 'analyze') {
1368: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
1.125 albertel 1369: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
1.154 albertel 1370: &Apache::response::check_if_computed($token,$parstack,$safeeval,
1371: 'answer');
1.122 albertel 1372: }
1.140 albertel 1373: &Apache::response::setup_params('stringresponse',$safeeval);
1.122 albertel 1374: if ($target eq 'answer') {
1.125 albertel 1375: $result.=&Apache::response::answer_header('stringresponse');
1.122 albertel 1376: }
1.200 albertel 1377: foreach my $name (keys(%answer)) {
1378: my @answers = @{ $answer{$name}{'answers'} };
1379: for (my $i=0;$i<=$#answers;$i++) {
1380: my $answer_part = $answers[$i];
1381: foreach my $element (@{$answer_part}) {
1382: if ($target eq 'answer') {
1383: $result.=&Apache::response::answer_part('stringresponse',
1384: $element);
1.243 raeburn 1385: if ($env{'form.grade_retrieveanswers'}) {
1386: $env{'form.grade_answers.resource.'.$part.'.'.$id} = $element;
1387: }
1.200 albertel 1388: } elsif ($target eq 'analyze') {
1389: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"}{$name}[$i] },
1390: $element);
1391: }
1392: }
1393: if ($target eq 'answer' && $type eq 're') {
1.178 albertel 1394: $result.=&Apache::response::answer_part('stringresponse',
1395: $answerdisplay);
1396: }
1.122 albertel 1397: }
1.200 albertel 1398: }
1.122 albertel 1399: my $string='Case Insensitive';
1400: if ($type eq 'mc') {
1401: $string='Multiple Choice';
1402: } elsif ($type eq 'cs') {
1403: $string='Case Sensitive';
1404: } elsif ($type eq 'ci') {
1405: $string='Case Insensitive';
1406: } elsif ($type eq 're') {
1407: $string='Regular Expression';
1408: }
1409: if ($target eq 'answer') {
1.166 albertel 1410: if ($env{'form.answer_output_mode'} eq 'tex') {
1.125 albertel 1411: $result.=&Apache::response::answer_part('stringresponse',
1.122 albertel 1412: "$string");
1413: } else {
1.125 albertel 1414: $result.=&Apache::response::answer_part('stringresponse',
1.122 albertel 1415: "<b>$string</b>");
1416: }
1417: } elsif ($target eq 'analyze') {
1418: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
1419: $type);
1420: }
1421: if ($target eq 'answer') {
1.125 albertel 1422: $result.=&Apache::response::answer_footer('stringresponse');
1.122 albertel 1423: }
1424: } elsif ($target eq 'edit') {
1425: $result.='</td></tr>'.&Apache::edit::end_table;
1.211 albertel 1426: } elsif ($target eq 'web' || $target eq 'tex') {
1.212 albertel 1427: &Apache::response::setup_prior_tries_hash(\&format_prior_response_string);
1.122 albertel 1428: }
1429: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1430: $target eq 'tex' || $target eq 'analyze') {
1.249 raeburn 1431: my $repetition = &Apache::response::repetition();
1432: &Apache::lonxml::increment_counter($repetition,"$part.$id");
1.220 albertel 1433: if ($target eq 'analyze') {
1434: &Apache::lonhomework::set_bubble_lines();
1435: }
1.122 albertel 1436: }
1437: &Apache::response::end_response;
1438: return $result;
1.44 albertel 1439: }
1440:
1441: sub start_formularesponse {
1.89 albertel 1442: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1443: my $result;
1444: if ($target eq 'meta') {
1.104 bowersj2 1445: &Apache::response::start_response($parstack,$safeeval);
1.89 albertel 1446: $result=&Apache::response::meta_package_write('formularesponse');
1.104 bowersj2 1447: &Apache::response::end_response();
1.89 albertel 1448: } else {
1449: $result.=&start_numericalresponse(@_);
1450: }
1451: return $result;
1.44 albertel 1452: }
1453:
1454: sub end_formularesponse {
1.89 albertel 1455: return end_numericalresponse(@_);
1.3 albertel 1456: }
1457:
1.1 albertel 1458: 1;
1.3 albertel 1459: __END__
1.89 albertel 1460:
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