1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.173 2005/07/11 18:24:12 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: use Apache::lonlocal;
33: use Apache::lonnet;
34:
35: BEGIN {
36: &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));
37: }
38:
39: sub start_numericalresponse {
40: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
41: my $id = &Apache::response::start_response($parstack,$safeeval);
42: my $result;
43: undef %{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
44: if ($target eq 'edit') {
45: $result.=&Apache::edit::tag_start($target,$token);
46: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
47: if ($token->[1] eq 'numericalresponse') {
48: $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
49: $token).
50: &Apache::loncommon::help_open_topic('numerical_wrong_answers');
51: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
52: &Apache::loncommon::help_open_topic('Physical_Units');
53: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
54: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
55: } elsif ($token->[1] eq 'formularesponse') {
56: $result.=&Apache::edit::text_arg('Sample Points:','samples',
57: $token,40).
58: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
59: }
60: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
61: } elsif ($target eq 'modified') {
62: my $constructtag;
63: if ($token->[1] eq 'numericalresponse') {
64: $constructtag=&Apache::edit::get_new_args($token,$parstack,
65: $safeeval,'answer',
66: 'incorrect','unit',
67: 'format');
68: } elsif ($token->[1] eq 'formularesponse') {
69: $constructtag=&Apache::edit::get_new_args($token,$parstack,
70: $safeeval,'answer',
71: 'samples');
72: }
73: if ($constructtag) {
74: $result = &Apache::edit::rebuild_tag($token);
75: $result.=&Apache::edit::handle_insert();
76: }
77: } elsif ($target eq 'meta') {
78: $result=&Apache::response::meta_package_write('numericalresponse');
79: } elsif ($target eq 'answer' || $target eq 'grade') {
80: &Apache::response::reset_params();
81: } elsif ($target eq 'web') {
82: my $partid = $Apache::inputtags::part;
83: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
84: &Apache::lonxml::debug("Got unit $hideunit for $partid $id");
85: #no way to enter units, with radio buttons
86: if (lc($hideunit) eq "yes") {
87: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
88: $safeeval);
89: if ($unit =~ /\S/) { $result.=" (in $unit) "; }
90: }
91: if ( &Apache::response::show_answer() ) {
92: my $answertxt;
93: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
94: $safeeval);
95: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
96: $safeeval);
97: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
98: $safeeval);
99: for (my $i=0; $i <= $#answers; $i++) {
100: my $answer=$answers[$i];
101: my $format;
102: if ($#formats > 0) {
103: $format=$formats[$i];
104: } else {
105: $format=$formats[0];
106: }
107: if ($unit=~/\$/) { $format="\$".$format; $unit=~s/\$//g; }
108: if ($unit=~/\,/) { $format="\,".$format; $unit=~s/\,//g; }
109: my $formatted=&format_number($answer,$format,$target,
110: $safeeval);
111: $answertxt.=$formatted.',';
112: }
113: chop $answertxt;
114: if ($target eq 'web') {
115: $answertxt.=" $unit ";
116: }
117: $Apache::inputtags::answertxt{$id}=$answertxt;
118: }
119: }
120: return $result;
121: }
122:
123: sub check_submission {
124: my ($response,$partid,$id,$tag,$parstack,$safeeval,$ignore_sig)=@_;
125: my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
126: $$args_ref{'response'}=$response;
127: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
128:
129: foreach my $arg ('type','tol','sig','format','unit','calc',
130: 'samples') {
131: $$args_ref{$arg}=
132: &Apache::lonxml::get_param($arg,$parstack,$safeeval);
133: }
134: foreach my $key (keys(%Apache::inputtags::params)) {
135: $$args_ref{$key}=$Apache::inputtags::params{$key};
136: }
137:
138: #no way to enter units, with radio buttons
139: if ($Apache::lonhomework::type eq 'exam' ||
140: lc($hideunit) eq "yes") {
141: delete($$args_ref{'unit'});
142: }
143: #sig fig don't make much sense either
144: if (($Apache::lonhomework::type eq 'exam' ||
145: &Apache::response::submitted('scantron') ||
146: $ignore_sig) &&
147: $tag eq 'numericalresponse') {
148: delete($$args_ref{'sig'});
149: }
150:
151: if ($tag eq 'formularesponse') {
152: $$args_ref{'type'}='fml';
153: } elsif ($tag eq 'numericalresponse') {
154: $$args_ref{'type'}='float';
155: }
156: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
157: &Apache::lonxml::debug('answer is'.join(':',@answer));
158: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=@answer;
159:
160: my ($result,@msgs) =
161: &Apache::run::run("&caparesponse_check_list()",$safeeval);
162: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
163: my ($awards)=split(/:/,$result);
164: my @awards= split(/,/,$awards);
165: return(\@awards,\@msgs);
166: }
167:
168: sub end_numericalresponse {
169: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
170: my $increment=1;
171: my $result = '';
172: if (!$Apache::lonxml::default_homework_loaded) {
173: &Apache::lonxml::default_homework_load($safeeval);
174: }
175: my $partid = $Apache::inputtags::part;
176: my $id = $Apache::inputtags::response[-1];
177: my $tag;
178: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
179: if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
180: if ( $target eq 'grade' && &Apache::response::submitted() ) {
181: &Apache::response::setup_params($tag,$safeeval);
182: if ($Apache::lonhomework::type eq 'exam' &&
183: $tag eq 'formularesponse') {
184: $increment=&Apache::response::scored_response($partid,$id);
185: } else {
186: my $response = &Apache::response::getresponse();
187: if ( $response =~ /[^\s]/) {
188: my $ad;
189: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
190: &Apache::lonxml::debug("submitted a $response<br>\n");
191: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
192:
193: if ( &Apache::response::submitted('scantron')) {
194: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
195: if (!$number_of_bubbles) { $number_of_bubbles=8; }
196: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
197: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
198: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
199: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
200: my ($values,$display)=&make_numerical_bubbles($number_of_bubbles,$target,$answers[0],$formats[0],\@incorrect,$safeeval);
201: $response=$values->[$response];
202: }
203: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
204: my ($awards,$msgs)=&check_submission($response,$partid,$id,
205: $tag,$parstack,$safeeval);
206:
207: ($ad,my $msg) = &Apache::inputtags::finalizeawards($awards,$msgs);
208: &Apache::lonxml::debug('ad is'.$ad);
209: if ($ad eq 'SIG_FAIL') {
210: my ($sig_u,$sig_l)=
211: &get_sigrange($Apache::inputtags::params{'sig'});
212: $msg=join(':',$msg,$sig_l,$sig_u);
213: &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
214: $Apache::inputtags::params{'sig'});
215: }
216: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
217: if ($Apache::lonhomework::type eq 'survey' &&
218: ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
219: $ad eq 'EXACT_ANS')) {
220: $ad='SUBMITTED';
221: }
222: &Apache::response::handle_previous(\%previous,$ad);
223: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
224: $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
225: $result='';
226: }
227: }
228: } elsif ($target eq 'web' || $target eq 'tex') {
229: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
230: $safeeval);
231: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
232: my $status = $Apache::inputtags::status['-1'];
233: if ($Apache::lonhomework::type eq 'exam') {
234: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
235: if ($Apache::inputtags::params{'numbubbles'}) {
236: $number_of_bubbles = $Apache::inputtags::params{'numbubbles'};
237: }
238: if (!$number_of_bubbles) { $number_of_bubbles=8; }
239:
240: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
241: $safeeval);
242: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
243: $safeeval);
244: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
245: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
246: my ($bubble_values,$bubble_display)=
247: &make_numerical_bubbles($number_of_bubbles,
248: $target,$answers[0],
249: $formats[0],\@incorrect,$safeeval);
250: my @alphabet=('A'..'Z');
251: if ($target eq 'web') {
252: if ($tag eq 'numericalresponse') {
253: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
254: $result.= '<table border="1"><tr>';
255: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
256: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
257: my $checked='';
258: if ($previous eq $bubble_values->[$ind]) {
259: $checked=" checked='on' ";
260: }
261: $result.='<td><input type="radio" name="HWVAL_'.$id.
262: '" value="'.$bubble_values->[$ind].'" '.$checked
263: .' /><b>'.$alphabet[$ind].'</b>: '.
264: $bubble_display->[$ind].'</td>';
265: }
266: $result.='</tr></table>';
267: } elsif ($tag eq 'formularesponse') {
268: $result.= '<br /><br /><font color="red">
269: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
270: </textarea></font> <br /><br />';
271: }
272: } elsif ($target eq 'tex') {
273: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
274: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
275: }
276: if ($tag eq 'numericalresponse') {
277: my ($celllength,$number_of_tables,@table_range)=
278: &get_table_sizes($number_of_bubbles,$bubble_display);
279: my $j=0;
280: my $cou=0;
281: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
282: for (my $i=0;$i<$number_of_tables;$i++) {
283: $result.='\vskip -1 mm \noindent \setlength{\tabcolsep}{2 mm}\begin{tabular}{';
284: for (my $ind=0;$ind<$table_range[$j];$ind++) {
285: $result.='p{3 mm}p{'.$celllength.' mm}';
286: }
287: $result.='}';
288: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
289: $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_display->[$ind].'} ';
290: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
291: }
292: $cou += $table_range[$j];
293: $j++;
294: $result.='\\\\\end{tabular}\vskip 0 mm ';
295: }
296: $result.='\end{enumerate}';
297: } else {
298: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
299: my $repetition = &Apache::response::repetition();
300: $result.='\begin{enumerate}';
301: for (my $i=0;$i<$repetition;$i++) {
302: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
303: }
304: $increment=$repetition;
305: $result.= '\end{enumerate}';
306: }
307: }
308: }
309: } elsif ($target eq 'edit') {
310: $result.='</td></tr>'.&Apache::edit::end_table;
311: } elsif ($target eq 'answer' || $target eq 'analyze') {
312: my $part_id="$partid.$id";
313: if ($target eq 'analyze') {
314: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
315: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
316: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
317: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
318: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
319: &Apache::response::check_if_computed($token,$parstack,
320: $safeeval,'answer');
321: }
322: if (scalar(@$tagstack)) {
323: &Apache::response::setup_params($tag,$safeeval);
324: }
325: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
326: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
327: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
328: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
329:
330: if ($target eq 'answer') {
331: $result.=&Apache::response::answer_header($tag);
332: }
333: for(my $i=0;$i<=$#answers;$i++) {
334: my $ans=$answers[$i];
335: my $fmt=$formats[0];
336: if (@formats && $#formats) {$fmt=$formats[$i];}
337: my ($high,$low);
338: if ($Apache::inputtags::params{'tol'}) {
339: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
340: }
341: my ($sighigh,$siglow);
342: if ($Apache::inputtags::params{'sig'}) {
343: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
344: }
345: if ($fmt && $tag eq 'numericalresponse') {
346: $fmt=~s/e/E/g;
347: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
348: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
349: $ans = &format_number($ans,$fmt,$target,$safeeval);
350: #if ($high) {
351: # $high=&format_number($high,$fmt,$target,$safeeval);
352: # $low =&format_number($low,$fmt,$target,$safeeval);
353: #}
354: }
355: my $response=$ans;
356: if ($unit) {
357: my $cleanunit=$unit;
358: $cleanunit=~s/\$\,//g;
359: $response.=" $cleanunit";
360: }
361: if ($target eq 'answer') {
362: if ($high && $tag eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
363: if (defined($sighigh) && $tag eq 'numericalresponse') {
364: if ($env{'form.answer_output_mode'} eq 'tex') {
365: $ans.= " Sig $siglow - $sighigh";
366: } else {
367: $ans.= " Sig <i>$siglow - $sighigh</i>";
368: }
369: }
370: $result.=&Apache::response::answer_part($tag,$ans);
371: } elsif ($target eq 'analyze') {
372: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
373: if ($high) {
374: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
375: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
376: }
377: if ($fmt) {
378: push (@{ $Apache::lonhomework::analyze{"$part_id.format"} }, $fmt);
379: }
380: }
381: my ($awards,$msgs)=&check_submission($response,$partid,$id,$tag,
382: $parstack,$safeeval);
383: my ($ad,$msg) =&Apache::inputtags::finalizeawards($awards,$msgs);
384: if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
385: # answer failed check if it is sig figs that is failing
386: my ($awards,$msgs)=&check_submission($response,$partid,$id,
387: $tag,$parstack,$safeeval,
388: 1);
389: my ($ad,$msg)=&Apache::inputtags::finalizeawards($awards,
390: $msgs);
391:
392: my $error;
393: if ($siglow ne '' && $sighigh ne '') {
394: $error=&mt('Computer\'s answer is incorrect ("[_1]"). It is likely that the tolerance range ("[_2]" to "[_3]") or significant figures ("[_4]" to "[_5]") need to be adjusted.',$response,$low,$high,$siglow,$sighigh);
395: } else {
396: $error=&mt('Computer\'s answer is incorrect ("[_1]"). It is likely that the tolerance range ("[_2]" to "[_3]") needs to be adjusted.',$response,$low,$high);
397: }
398: if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
399: &Apache::lonxml::error($error);
400: } else {
401: &Apache::lonxml::warning($error);
402: }
403: }
404: }
405: if (defined($unit) and ($unit ne '') and
406: $tag eq 'numericalresponse') {
407: if ($target eq 'answer') {
408: if ($env{'form.answer_output_mode'} eq 'tex') {
409: $result.=&Apache::response::answer_part($tag,
410: " Unit: $unit ");
411: } else {
412: $result.=&Apache::response::answer_part($tag,
413: "Unit: <b>$unit</b>");
414: }
415: } elsif ($target eq 'analyze') {
416: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
417: }
418: }
419: if ($tag eq 'formularesponse' && $target eq 'answer') {
420: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
421: $result.=&Apache::response::answer_part($tag,$samples);
422: }
423: if ($target eq 'answer') {
424: $result.=&Apache::response::answer_footer($tag);
425: }
426: }
427: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
428: $target eq 'tex' || $target eq 'analyze') {
429: &Apache::lonxml::increment_counter($increment);
430: }
431: &Apache::response::end_response;
432: return $result;
433: }
434:
435: sub get_table_sizes {
436: my ($number_of_bubbles,$rbubble_values)=@_;
437: my $scale=2; #mm for one digit
438: my $cell_width=0;
439: foreach my $member (@$rbubble_values) {
440: my $cell_width_real=0;
441: if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) {
442: $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
443: } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
444: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
445: } elsif ($member=~/(\d*)\.(\d*)/) {
446: $cell_width_real=(length($1)+length($2)+3)*$scale;
447: } else {
448: $cell_width_real=(length($member)+1)*$scale*0.9;
449: }
450: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
451: }
452: $cell_width+=8;
453: my $textwidth;
454: if ($env{'form.textwidth'} ne '') {
455: $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
456: $textwidth=$1.'.'.$2;
457: } else {
458: $env{'form.textwidth'}=~/(\d+)\.?(\d*)/;
459: $textwidth=$1.'.'.$2;
460: }
461: my $bubbles_per_line=int($textwidth/$cell_width);
462: if ($bubbles_per_line > $number_of_bubbles) {
463: $bubbles_per_line=$number_of_bubbles;
464: }elsif (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;}
465: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
466: my @table_range = ();
467: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
468: if ($number_of_bubbles % $bubbles_per_line) {
469: $number_of_tables++;
470: push @table_range,($number_of_bubbles % $bubbles_per_line);
471: }
472: $cell_width-=8;
473: $cell_width=$cell_width*3/4;
474: return ($cell_width,$number_of_tables,@table_range);
475: }
476:
477: sub format_number {
478: my ($number,$format,$target,$safeeval)=@_;
479: my $ans;
480: if ($format eq '') {
481: #What is the number? (integer,decimal,floating point)
482: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
483: $format = '3e';
484: } elsif ($number=~/^(\d*)\.(\d*)$/) {
485: $format = '4f';
486: } elsif ($number=~/^(\d*)$/) {
487: $format = 'd';
488: }
489: }
490: if (!$Apache::lonxml::default_homework_loaded) {
491: &Apache::lonxml::default_homework_load($safeeval);
492: }
493: $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
494: return $ans;
495: }
496:
497: sub make_numerical_bubbles {
498: my ($number_of_bubbles,$target,$answer,$format,$incorrect,$safeeval) =@_;
499: my @bubble_values=();
500: &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
501: my @oldseed=&Math::Random::random_get_seed();
502: if (defined($incorrect) && ref($incorrect)) {
503: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
504: if (defined($$incorrect[0]) &&
505: scalar(@$incorrect)+1 >= $number_of_bubbles) {
506: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
507: &Apache::response::setrandomnumber();
508: my @rand_inc=&Math::Random::random_permutation(@$incorrect);
509: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
510: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
511: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
512: &Math::Random::random_set_seed(@oldseed);
513: if (defined($format) && $format ne '') {
514: my @bubble_display;
515: foreach my $value (@bubble_values) {
516: push(@bubble_display,
517: &format_number($value,$format,$target,$safeeval));
518: }
519: return (\@bubble_values,\@bubble_display);
520: } else {
521: return (\@bubble_values,\@bubble_values);
522: }
523: }
524: if (defined($$incorrect[0]) &&
525: scalar(@$incorrect)+1 < $number_of_bubbles) {
526: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them (".join(',',@$incorrect).").");
527: }
528: }
529: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
530: my @powers = (1..$number_of_bubbles);
531: &Apache::response::setrandomnumber();
532: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
533: my $power = $powers[$ind];
534: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
535: my $factor = $factors[$ind];
536: my @bubble_display;
537: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
538: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
539: $bubble_display[$ind] = &format_number($bubble_values[$ind],
540: $format,$target,$safeeval);
541:
542: }
543: &Math::Random::random_set_seed(@oldseed);
544: return (\@bubble_values,\@bubble_display);
545: }
546:
547: sub get_tolrange {
548: my ($ans,$tol)=@_;
549: my ($high,$low);
550: if ($tol =~ /%$/) {
551: chop($tol);
552: my $change=$ans*($tol/100.0);
553: $high=$ans+$change;
554: $low=$ans-$change;
555: } else {
556: $high=$ans+$tol;
557: $low=$ans-$tol;
558: }
559: return ($high,$low);
560: }
561:
562: sub get_sigrange {
563: my ($sig)=@_;
564: &Apache::lonxml::debug("Got a sig of :$sig:");
565: my $courseid=$env{'request.course.id'};
566: if (lc($env{"course.$courseid.disablesigfigs"}) eq 'yes') {
567: return (15,0);
568: }
569: my $sig_lbound;
570: my $sig_ubound;
571: if ($sig eq '') {
572: $sig_lbound = 0; #SIG_LB_DEFAULT
573: $sig_ubound =15; #SIG_UB_DEFAULT
574: } else {
575: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
576: if (!defined($sig_lbound)) {
577: $sig_lbound = 0; #SIG_LB_DEFAULT
578: $sig_ubound =15; #SIG_UB_DEFAULT
579: }
580: if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
581: }
582: if (($sig_ubound<$sig_lbound) ||
583: ($sig_lbound > 15) ||
584: ($sig =~/(\+|-)/ ) ) {
585: my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
586: if ($env{'request.state'} eq 'construct') {
587: $errormsg.=
588: &Apache::loncommon::help_open_topic('Significant_Figures');
589: }
590: &Apache::lonxml::error($errormsg);
591: }
592: return ($sig_ubound,$sig_lbound);
593: }
594:
595: sub start_stringresponse {
596: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
597: my $result;
598: my $id = &Apache::response::start_response($parstack,$safeeval);
599: if ($target eq 'meta') {
600: $result=&Apache::response::meta_package_write('stringresponse');
601: } elsif ($target eq 'edit') {
602: $result.=&Apache::edit::tag_start($target,$token);
603: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
604: $result.=&Apache::edit::select_arg('Type:','type',
605: [['cs','Case Sensitive'],['ci','Case Insensitive'],
606: ['mc','Case Insensitive, Any Order'],
607: ['re','Regular Expression']],$token);
608: $result.=&Apache::edit::text_arg('String to display for answer:',
609: 'answerdisplay',$token);
610: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
611: } elsif ($target eq 'modified') {
612: my $constructtag;
613: $constructtag=&Apache::edit::get_new_args($token,$parstack,
614: $safeeval,'answer',
615: 'type','answerdisplay');
616: if ($constructtag) {
617: $result = &Apache::edit::rebuild_tag($token);
618: $result.=&Apache::edit::handle_insert();
619: }
620: } elsif ($target eq 'web') {
621: if ( &Apache::response::show_answer() ) {
622: my $answer=
623: &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
624: if (!defined $answer || $answer eq '') {
625: $answer=
626: &Apache::lonxml::get_param('answer',$parstack,$safeeval);
627: }
628: $Apache::inputtags::answertxt{$id}=$answer;
629: }
630: } elsif ($target eq 'answer' || $target eq 'grade') {
631: &Apache::response::reset_params();
632: }
633: return $result;
634: }
635:
636: sub end_stringresponse {
637: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
638: my $increment=1;
639: my $result = '';
640: my $part=$Apache::inputtags::part;
641: my $id=$Apache::inputtags::response[-1];
642: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
643: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
644: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
645: &Apache::lonxml::debug("current $answer ".$token->[2]);
646: if (!$Apache::lonxml::default_homework_loaded) {
647: &Apache::lonxml::default_homework_load($safeeval);
648: }
649: if ( $target eq 'grade' && &Apache::response::submitted() ) {
650: &Apache::response::setup_params('stringresponse',$safeeval);
651: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
652: if ($Apache::lonhomework::type eq 'exam' ||
653: &Apache::response::submitted('scantron')) {
654: $increment=&Apache::response::scored_response($part,$id);
655: } else {
656: my $response = &Apache::response::getresponse();
657: if ( $response =~ /[^\s]/) {
658: my %previous = &Apache::response::check_for_previous($response,
659: $part,$id);
660: &Apache::lonxml::debug("submitted a $response<br>\n");
661: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
662: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
663: $response;
664: my ($ad,$msg);
665: if ($type eq 're' ) {
666: # if the RE wasn't in a var it likely got munged,
667: # thus grab it from the var directly
668: # my $testans=$token->[2]->{'answer'};
669: # if ($testans !~ m/^\s*\$/) {
670: # $answer=$token->[2]->{'answer'};
671: # }
672: ${$safeeval->varglob('LONCAPA::response')}=$response;
673: $result = &Apache::run::run('return $LONCAPA::response=~m'.$answer,$safeeval);
674: &Apache::lonxml::debug("current $response");
675: &Apache::lonxml::debug("current $answer");
676: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
677: } else {
678: my $args_ref=
679: \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
680:
681: $$args_ref{'response'}=$response;
682: &Apache::lonxml::debug("current $response");
683: $$args_ref{'type'}=
684: &Apache::lonxml::get_param('type',$parstack,$safeeval);
685: foreach my $key (keys(%Apache::inputtags::params)) {
686: $$args_ref{$key}=$Apache::inputtags::params{$key};
687: }
688: &Apache::lonxml::debug('answer is'.join(':',$answer));
689: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=($answer);
690: ($result, my @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
691: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
692: my ($awards)=split(/:/,$result);
693: my (@awards) = split(/,/,$awards);
694: ($ad,$msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
695: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
696: }
697: if ($Apache::lonhomework::type eq 'survey' &&
698: ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
699: $ad eq 'EXACT_ANS')) {
700: $ad='SUBMITTED';
701: }
702: &Apache::response::handle_previous(\%previous,$ad);
703: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
704: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
705: }
706: }
707: } elsif ($target eq 'web' || $target eq 'tex') {
708: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
709: my $status = $Apache::inputtags::status['-1'];
710: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
711: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
712: $increment = &Apache::response::repetition();
713: $result.='\begin{enumerate}';
714: for (my $i=0;$i<$increment;$i++) {
715: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
716: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
717: }
718: $result.= '\end{enumerate}';
719: }
720: } elsif ($target eq 'answer' || $target eq 'analyze') {
721: if ($target eq 'analyze') {
722: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
723: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
724: &Apache::response::check_if_computed($token,$parstack,$safeeval,
725: 'answer');
726: }
727: &Apache::response::setup_params('stringresponse',$safeeval);
728: if ($target eq 'answer') {
729: $result.=&Apache::response::answer_header('stringresponse');
730: }
731: # foreach my $ans (@answers) {
732: if ($target eq 'answer') {
733: $result.=&Apache::response::answer_part('stringresponse',$answer);
734: } elsif ($target eq 'analyze') {
735: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
736: $answer);
737: }
738: # }
739: my $string='Case Insensitive';
740: if ($type eq 'mc') {
741: $string='Multiple Choice';
742: } elsif ($type eq 'cs') {
743: $string='Case Sensitive';
744: } elsif ($type eq 'ci') {
745: $string='Case Insensitive';
746: } elsif ($type eq 're') {
747: $string='Regular Expression';
748: }
749: if ($target eq 'answer') {
750: if ($env{'form.answer_output_mode'} eq 'tex') {
751: $result.=&Apache::response::answer_part('stringresponse',
752: "$string");
753: } else {
754: $result.=&Apache::response::answer_part('stringresponse',
755: "<b>$string</b>");
756: }
757: } elsif ($target eq 'analyze') {
758: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
759: $type);
760: }
761: if ($target eq 'answer') {
762: $result.=&Apache::response::answer_footer('stringresponse');
763: }
764: } elsif ($target eq 'edit') {
765: $result.='</td></tr>'.&Apache::edit::end_table;
766: }
767: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
768: $target eq 'tex' || $target eq 'analyze') {
769: &Apache::lonxml::increment_counter($increment);
770: }
771: &Apache::response::end_response;
772: return $result;
773: }
774:
775: sub start_formularesponse {
776: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
777: my $result;
778: if ($target eq 'meta') {
779: &Apache::response::start_response($parstack,$safeeval);
780: $result=&Apache::response::meta_package_write('formularesponse');
781: &Apache::response::end_response();
782: } else {
783: $result.=&start_numericalresponse(@_);
784: }
785: return $result;
786: }
787:
788: sub end_formularesponse {
789: return end_numericalresponse(@_);
790: }
791:
792: 1;
793: __END__
794:
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