1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.158 2004/12/23 22:53:41 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:
34: BEGIN {
35: &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));
36: }
37:
38: sub start_numericalresponse {
39: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
40: my $id = &Apache::response::start_response($parstack,$safeeval);
41: my $result;
42: undef %{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
43: if ($target eq 'edit') {
44: $result.=&Apache::edit::tag_start($target,$token);
45: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
46: if ($token->[1] eq 'numericalresponse') {
47: $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
48: $token).
49: &Apache::loncommon::help_open_topic('numerical_wrong_answers');
50: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
51: &Apache::loncommon::help_open_topic('Physical_Units');
52: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
53: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
54: } elsif ($token->[1] eq 'formularesponse') {
55: $result.=&Apache::edit::text_arg('Sample Points:','samples',
56: $token,40).
57: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
58: }
59: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
60: } elsif ($target eq 'modified') {
61: my $constructtag;
62: if ($token->[1] eq 'numericalresponse') {
63: $constructtag=&Apache::edit::get_new_args($token,$parstack,
64: $safeeval,'answer',
65: 'incorrect','unit',
66: 'format');
67: } elsif ($token->[1] eq 'formularesponse') {
68: $constructtag=&Apache::edit::get_new_args($token,$parstack,
69: $safeeval,'answer',
70: 'samples');
71: }
72: if ($constructtag) {
73: $result = &Apache::edit::rebuild_tag($token);
74: $result.=&Apache::edit::handle_insert();
75: }
76: } elsif ($target eq 'meta') {
77: $result=&Apache::response::meta_package_write('numericalresponse');
78: } elsif ($target eq 'answer' || $target eq 'grade') {
79: &Apache::response::reset_params();
80: } elsif ($target eq 'web') {
81: my $partid = $Apache::inputtags::part;
82: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
83: &Apache::lonxml::debug("Got unit $hideunit for $partid $id");
84: #no way to enter units, with radio buttons
85: if (lc($hideunit) eq "yes") {
86: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
87: $safeeval);
88: if ($unit =~ /\S/) { $result.=" (in $unit) "; }
89: }
90: if ( &Apache::response::show_answer() ) {
91: my $answertxt;
92: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
93: $safeeval);
94: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
95: $safeeval);
96: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
97: $safeeval);
98: for (my $i=0; $i <= $#answers; $i++) {
99: my $answer=$answers[$i];
100: my $format;
101: if ($#formats > 0) {
102: $format=$formats[$i];
103: } else {
104: $format=$formats[0];
105: }
106: if ($unit=~/\$/) { $format="\$".$format; $unit=~s/\$//g; }
107: if ($unit=~/\,/) { $format="\,".$format; $unit=~s/\,//g; }
108: my $formatted=&format_number($answer,$format,$target,
109: $safeeval);
110: $answertxt.=$formatted.',';
111: }
112: chop $answertxt;
113: if ($target eq 'web') {
114: $answertxt.=" $unit ";
115: }
116: $Apache::inputtags::answertxt{$id}=$answertxt;
117: }
118: }
119: return $result;
120: }
121:
122: sub end_numericalresponse {
123: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
124: my $increment=1;
125: my $result = '';
126: if (!$Apache::lonxml::default_homework_loaded) {
127: &Apache::lonxml::default_homework_load($safeeval);
128: }
129: my $tag;
130: if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
131: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
132: &Apache::response::setup_params($tag,$safeeval);
133: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
134: my $partid = $Apache::inputtags::part;
135: my $id = $Apache::inputtags::response['-1'];
136: if ($Apache::lonhomework::type eq 'exam' &&
137: $tag eq 'formularesponse') {
138: $increment=&Apache::response::scored_response($partid,$id);
139: } elsif ($Apache::lonhomework::type eq 'survey') {
140: if ( !defined($ENV{'form.submitted'})) { return ''; }
141: my $response = &Apache::response::getresponse();
142: if ( $response =~ /[^\s]/) {
143: my %previous=&Apache::response::check_for_previous($response,
144: $partid,$id);
145: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
146: my $ad=$Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
147: &Apache::response::handle_previous(\%previous,$ad);
148: }
149: } else {
150: my $response = &Apache::response::getresponse();
151: if ( $response =~ /[^\s]/) {
152: my $ad;
153: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
154: &Apache::lonxml::debug("submitted a $response<br>\n");
155: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
156:
157: if ($ENV{'form.submitted'} eq 'scantron') {
158: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
159: if (!$number_of_bubbles) { $number_of_bubbles=8; }
160: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
161: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
162: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
163: my ($values,$display)=&make_numerical_bubbles($number_of_bubbles,$target,$answers[0],$formats[0],\@incorrect,$safeeval);
164: $response=$values->[$response];
165: }
166: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
167: my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
168: $$args_ref{'response'}=$response;
169: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
170:
171: foreach my $arg ('type','tol','sig','format','unit','calc',
172: 'samples') {
173: $$args_ref{$arg}=
174: &Apache::lonxml::get_param($arg,$parstack,$safeeval);
175: }
176: foreach my $key (keys(%Apache::inputtags::params)) {
177: $$args_ref{$key}=$Apache::inputtags::params{$key};
178: }
179:
180: #no way to enter units, with radio buttons
181: if ($Apache::lonhomework::type eq 'exam' ||
182: lc($hideunit) eq "yes") {
183: delete($$args_ref{'unit'});
184: }
185: #sig fig don't make much sense either
186: if (($Apache::lonhomework::type eq 'exam' ||
187: $ENV{'form.submitted'} eq 'scantron') &&
188: $tag eq 'numericalresponse') {
189: delete($$args_ref{'sig'});
190: }
191:
192: if ($tag eq 'formularesponse') {
193: $$args_ref{'type'}='fml';
194: } elsif ($tag eq 'numericalresponse') {
195: $$args_ref{'type'}='float';
196: }
197: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
198: &Apache::lonxml::debug('answer is'.join(':',@answer));
199: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=@answer;
200:
201: ($result,my @msgs) =
202: &Apache::run::run("&caparesponse_check_list()",$safeeval);
203: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
204: my ($awards)=split(/:/,$result);
205: my (@awards) = split(/,/,$awards);
206: ($ad,my $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
207: &Apache::lonxml::debug('ad is'.$ad);
208: if ($ad eq 'SIG_FAIL') {
209: my ($sig_u,$sig_l)=
210: &get_sigrange($Apache::inputtags::params{'sig'});
211: $msg=join(':',$msg,$sig_l,$sig_u);
212: &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
213: $Apache::inputtags::params{'sig'});
214: }
215: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
216: &Apache::response::handle_previous(\%previous,$ad);
217: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
218: $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
219: $result='';
220: }
221: }
222: } elsif ($target eq 'web' || $target eq 'tex') {
223: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
224: $safeeval);
225: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
226: my $status = $Apache::inputtags::status['-1'];
227: if ($Apache::lonhomework::type eq 'exam') {
228: my $partid=$Apache::inputtags::part;
229: my $id=$Apache::inputtags::response[-1];
230: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
231: if ($Apache::inputtags::params{'numbubbles'}) {
232: $number_of_bubbles = $Apache::inputtags::params{'numbubbles'};
233: }
234: if (!$number_of_bubbles) { $number_of_bubbles=8; }
235:
236: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
237: $safeeval);
238: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
239: $safeeval);
240: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
241: my ($bubble_values,$bubble_display)=
242: &make_numerical_bubbles($number_of_bubbles,
243: $target,$answers[0],
244: $formats[0],\@incorrect,$safeeval);
245: my @alphabet=('A'..'Z');
246: if ($target eq 'web') {
247: if ($tag eq 'numericalresponse') {
248: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
249: $result.= '<table border="1"><tr>';
250: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
251: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
252: my $checked='';
253: if ($previous eq $bubble_values->[$ind]) {
254: $checked=" checked='on' ";
255: }
256: $result.='<td><input type="radio" name="HWVAL_'.$id.
257: '" value="'.$bubble_values->[$ind].'" '.$checked
258: .' /><b>'.$alphabet[$ind].'</b>: '.
259: $bubble_display->[$ind].'</td>';
260: }
261: $result.='</tr></table>';
262: } elsif ($tag eq 'formularesponse') {
263: $result.= '<br /><br /><font color="red">
264: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
265: </textarea></font> <br /><br />';
266: }
267: } elsif ($target eq 'tex') {
268: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
269: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
270: }
271: if ($tag eq 'numericalresponse') {
272: my ($celllength,$number_of_tables,@table_range)=
273: &get_table_sizes($number_of_bubbles,$bubble_values);
274: my $j=0;
275: my $cou=0;
276: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
277: for (my $i=0;$i<$number_of_tables;$i++) {
278: $result.='\vskip -1 mm \noindent \setlength{\tabcolsep}{2 mm}\begin{tabular}{';
279: for (my $ind=0;$ind<$table_range[$j];$ind++) {
280: $result.='p{3 mm}p{'.$celllength.' mm}';
281: }
282: $result.='}';
283: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
284: $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_values->[$ind].'} ';
285: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
286: }
287: $cou += $table_range[$j];
288: $j++;
289: $result.='\\\\\end{tabular}\vskip 0 mm ';
290: }
291: $result.='\end{enumerate}';
292: } else {
293: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
294: my $repetition = &Apache::response::repetition();
295: $result.='\begin{enumerate}';
296: for (my $i=0;$i<$repetition;$i++) {
297: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
298: }
299: $increment=$repetition;
300: $result.= '\end{enumerate}';
301: }
302: }
303: }
304: } elsif ($target eq 'edit') {
305: $result.='</td></tr>'.&Apache::edit::end_table;
306: } elsif ($target eq 'answer' || $target eq 'analyze') {
307:
308: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
309: if ($target eq 'analyze') {
310: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
311: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
312: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
313: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
314: &Apache::response::check_if_computed($token,$parstack,
315: $safeeval,'answer');
316: }
317: if (scalar(@$tagstack)) {
318: &Apache::response::setup_params($tag,$safeeval);
319: }
320: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
321: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
322: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
323: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
324:
325: if ($target eq 'answer') {
326: $result.=&Apache::response::answer_header($tag);
327: }
328: for(my $i=0;$i<=$#answers;$i++) {
329: my $ans=$answers[$i];
330: my $fmt=$formats[0];
331: if (@formats && $#formats) {$fmt=$formats[$i];}
332: my ($high,$low);
333: if ($Apache::inputtags::params{'tol'}) {
334: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
335: }
336: my ($sighigh,$siglow);
337: if ($Apache::inputtags::params{'sig'}) {
338: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
339: }
340: if ($fmt && $tag eq 'numericalresponse') {
341: $fmt=~s/e/E/g;
342: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
343: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
344: $ans = &format_number($ans,$fmt,$target,$safeeval);
345: #if ($high) {
346: # $high=&format_number($high,$fmt,$target,$safeeval);
347: # $low =&format_number($low,$fmt,$target,$safeeval);
348: #}
349: }
350: if ($target eq 'answer') {
351: if ($high && $tag eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
352: if (defined($sighigh) && $tag eq 'numericalresponse') {
353: if ($ENV{'form.answer_output_mode'} eq 'tex') {
354: $ans.= " Sig $siglow - $sighigh";
355: } else {
356: $ans.= " Sig <i>$siglow - $sighigh</i>";
357: }
358: }
359: $result.=&Apache::response::answer_part($tag,$ans);
360: } elsif ($target eq 'analyze') {
361: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
362: if ($high) {
363: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
364: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
365: }
366: }
367: }
368: if (defined($unit) and ($unit ne '') and
369: $tag eq 'numericalresponse') {
370: if ($target eq 'answer') {
371: if ($ENV{'form.answer_output_mode'} eq 'tex') {
372: $result.=&Apache::response::answer_part($tag,
373: " Unit: $unit ");
374: } else {
375: $result.=&Apache::response::answer_part($tag,
376: "Unit: <b>$unit</b>");
377: }
378: } elsif ($target eq 'analyze') {
379: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
380: }
381: }
382: if ($tag eq 'formularesponse' && $target eq 'answer') {
383: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
384: $result.=&Apache::response::answer_part($tag,$samples);
385: }
386: if ($target eq 'answer') {
387: $result.=&Apache::response::answer_footer($tag);
388: }
389: }
390: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
391: $target eq 'tex' || $target eq 'analyze') {
392: &Apache::lonxml::increment_counter($increment);
393: }
394: &Apache::response::end_response;
395: return $result;
396: }
397:
398: sub get_table_sizes {
399: my ($number_of_bubbles,$rbubble_values)=@_;
400: my $scale=2; #mm for one digit
401: my $cell_width=0;
402: foreach my $member (@$rbubble_values) {
403: my $cell_width_real=0;
404: if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$\\times\s*10\^{(\+|-)?(\d+)}\$/) {
405: $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
406: } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
407: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
408: } elsif ($member=~/(\d*)\.(\d*)/) {
409: $cell_width_real=(length($1)+length($2)+3)*$scale;
410: } else {
411: $cell_width_real=(length($member)+1)*$scale*0.9;
412: }
413: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
414: }
415: $cell_width+=8;
416: my $textwidth;
417: if ($ENV{'form.textwidth'} ne '') {
418: $ENV{'form.textwidth'}=~/(\d*)\.?(\d*)/;
419: $textwidth=$1.'.'.$2;
420: } else {
421: $ENV{'textwidth'}=~/(\d+)\.?(\d*)/;
422: $textwidth=$1.'.'.$2;
423: }
424: my $bubbles_per_line=int($textwidth/$cell_width);
425: if ($bubbles_per_line > $number_of_bubbles) {
426: $bubbles_per_line=$number_of_bubbles;
427: }elsif (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;}
428: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
429: my @table_range = ();
430: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
431: if ($number_of_bubbles % $bubbles_per_line) {
432: $number_of_tables++;
433: push @table_range,($number_of_bubbles % $bubbles_per_line);
434: }
435: $cell_width-=8;
436: $cell_width=$cell_width*3/4;
437: return ($cell_width,$number_of_tables,@table_range);
438: }
439:
440: sub format_number {
441: my ($number,$format,$target,$safeeval)=@_;
442: my $ans;
443: if ($format eq '') {
444: #What is the number? (integer,decimal,floating point)
445: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
446: $format = '3e';
447: } elsif ($number=~/^(\d*)\.(\d*)$/) {
448: $format = '4f';
449: } elsif ($number=~/^(\d*)$/) {
450: $format = 'd';
451: }
452: }
453: if (!$Apache::lonxml::default_homework_loaded) {
454: &Apache::lonxml::default_homework_load($safeeval);
455: }
456: $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
457: return $ans;
458: }
459:
460: sub make_numerical_bubbles {
461: my ($number_of_bubbles,$target,$answer,$format,$incorrect,$safeeval) =@_;
462: my @bubble_values=();
463: &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
464: my @oldseed=&Math::Random::random_get_seed();
465: if (defined($incorrect) && ref($incorrect)) {
466: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
467: if (defined($$incorrect[0]) &&
468: scalar(@$incorrect)+1 >= $number_of_bubbles) {
469: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
470: &Apache::response::setrandomnumber();
471: my @rand_inc=&Math::Random::random_permutation(@$incorrect);
472: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
473: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
474: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
475: &Math::Random::random_set_seed(@oldseed);
476: if (defined($format) && $format ne '') {
477: my @bubble_display;
478: foreach my $value (@bubble_values) {
479: push(@bubble_display,
480: &format_number($value,$format,$target,$safeeval));
481: }
482: return (\@bubble_values,\@bubble_display);
483: } else {
484: return (\@bubble_values,\@bubble_values);
485: }
486: }
487: if (defined($$incorrect[0]) &&
488: scalar(@$incorrect)+1 < $number_of_bubbles) {
489: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them.");
490: }
491: }
492: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
493: my @powers = (1..$number_of_bubbles);
494: &Apache::response::setrandomnumber();
495: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
496: my $power = $powers[$ind];
497: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
498: my $factor = $factors[$ind];
499: my @bubble_display;
500: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
501: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
502: $bubble_display[$ind] = &format_number($bubble_values[$ind],
503: $format,$target,$safeeval);
504:
505: }
506: &Math::Random::random_set_seed(@oldseed);
507: return (\@bubble_values,\@bubble_display);
508: }
509:
510: sub get_tolrange {
511: my ($ans,$tol)=@_;
512: my ($high,$low);
513: if ($tol =~ /%$/) {
514: chop($tol);
515: my $change=$ans*($tol/100.0);
516: $high=$ans+$change;
517: $low=$ans-$change;
518: } else {
519: $high=$ans+$tol;
520: $low=$ans-$tol;
521: }
522: return ($high,$low);
523: }
524:
525: sub get_sigrange {
526: my ($sig)=@_;
527: &Apache::lonxml::debug("Got a sig of :$sig:");
528: my $courseid=$ENV{'request.course.id'};
529: if (lc($ENV{"course.$courseid.disablesigfigs"}) eq 'yes') {
530: return (15,0);
531: }
532: my $sig_lbound;
533: my $sig_ubound;
534: if ($sig eq '') {
535: $sig_lbound = 0; #SIG_LB_DEFAULT
536: $sig_ubound =15; #SIG_UB_DEFAULT
537: } else {
538: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
539: if (!defined($sig_lbound)) {
540: $sig_lbound = 0; #SIG_LB_DEFAULT
541: $sig_ubound =15; #SIG_UB_DEFAULT
542: }
543: if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
544: }
545: if (($sig_ubound<$sig_lbound) ||
546: ($sig_lbound > 15) ||
547: ($sig =~/(\+|-)/ ) ) {
548: my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
549: if ($ENV{'request.state'} eq 'construct') {
550: $errormsg.=
551: &Apache::loncommon::help_open_topic('Significant_Figures');
552: }
553: &Apache::lonxml::error($errormsg);
554: }
555: return ($sig_ubound,$sig_lbound);
556: }
557:
558: sub start_stringresponse {
559: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
560: my $result;
561: my $id = &Apache::response::start_response($parstack,$safeeval);
562: if ($target eq 'meta') {
563: $result=&Apache::response::meta_package_write('stringresponse');
564: } elsif ($target eq 'edit') {
565: $result.=&Apache::edit::tag_start($target,$token);
566: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
567: $result.=&Apache::edit::select_arg('Type:','type',
568: [['cs','Case Sensitive'],['ci','Case Insensitive'],
569: ['mc','Case Insensitive, Any Order'],
570: ['re','Regular Expression']],$token);
571: $result.=&Apache::edit::text_arg('String to display for answer:',
572: 'answerdisplay',$token);
573: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
574: } elsif ($target eq 'modified') {
575: my $constructtag;
576: $constructtag=&Apache::edit::get_new_args($token,$parstack,
577: $safeeval,'answer',
578: 'type','answerdisplay');
579: if ($constructtag) {
580: $result = &Apache::edit::rebuild_tag($token);
581: $result.=&Apache::edit::handle_insert();
582: }
583: } elsif ($target eq 'web') {
584: if ( &Apache::response::show_answer() ) {
585: my $answer=
586: &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
587: if (!defined $answer || $answer eq '') {
588: $answer=
589: &Apache::lonxml::get_param('answer',$parstack,$safeeval);
590: }
591: $Apache::inputtags::answertxt{$id}=$answer;
592: }
593: } elsif ($target eq 'answer' || $target eq 'grade') {
594: &Apache::response::reset_params();
595: }
596: return $result;
597: }
598:
599: sub end_stringresponse {
600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
601: my $increment=1;
602: my $result = '';
603: my $part=$Apache::inputtags::part;
604: my $id=$Apache::inputtags::response[-1];
605: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
606: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
607: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
608: &Apache::lonxml::debug("current $answer ".$token->[2]);
609: if (!$Apache::lonxml::default_homework_loaded) {
610: &Apache::lonxml::default_homework_load($safeeval);
611: }
612: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
613: &Apache::response::setup_params('stringresponse',$safeeval);
614: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
615: if ($Apache::lonhomework::type eq 'exam' ||
616: $ENV{'form.submitted'} eq 'scantron') {
617: $increment=&Apache::response::scored_response($part,$id);
618: } elsif ($Apache::lonhomework::type eq 'survey') {
619: if ( !defined($ENV{'form.submitted'})) { return ''; }
620: my $response = &Apache::response::getresponse();
621: if ( $response =~ /[^\s]/) {
622: my %previous=&Apache::response::check_for_previous($response,
623: $part,$id);
624: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
625: $response;
626: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
627: &Apache::response::handle_previous(\%previous,$ad);
628: }
629: } else {
630: my $response = &Apache::response::getresponse();
631: if ( $response =~ /[^\s]/) {
632: my %previous = &Apache::response::check_for_previous($response,
633: $part,$id);
634: &Apache::lonxml::debug("submitted a $response<br>\n");
635: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
636: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
637: $response;
638: my ($ad,$msg);
639: if ($type eq 're' ) {
640: # if the RE wasn't in a var it likely got munged,
641: # thus grab it from the var directly
642: # my $testans=$token->[2]->{'answer'};
643: # if ($testans !~ m/^\s*\$/) {
644: # $answer=$token->[2]->{'answer'};
645: # }
646: ${$safeeval->varglob('LONCAPA::response')}=$response;
647: $result = &Apache::run::run('return $LONCAPA::response=~m'.$answer,$safeeval);
648: &Apache::lonxml::debug("current $response");
649: &Apache::lonxml::debug("current $answer");
650: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
651: } else {
652: my $args_ref=
653: \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
654:
655: $$args_ref{'response'}=$response;
656: &Apache::lonxml::debug("current $response");
657: $$args_ref{'type'}=
658: &Apache::lonxml::get_param('type',$parstack,$safeeval);
659: foreach my $key (keys(%Apache::inputtags::params)) {
660: $$args_ref{$key}=$Apache::inputtags::params{$key};
661: }
662: &Apache::lonxml::debug('answer is'.join(':',$answer));
663: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=($answer);
664: ($result, my @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
665: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
666: my ($awards)=split(/:/,$result);
667: my (@awards) = split(/,/,$awards);
668: ($ad,$msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
669: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
670: }
671: &Apache::response::handle_previous(\%previous,$ad);
672: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
673: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
674: }
675: }
676: } elsif ($target eq 'web' || $target eq 'tex') {
677: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
678: my $status = $Apache::inputtags::status['-1'];
679: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
680: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
681: $increment = &Apache::response::repetition();
682: $result.='\begin{enumerate}';
683: for (my $i=0;$i<$increment;$i++) {
684: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
685: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
686: }
687: $result.= '\end{enumerate}';
688: }
689: } elsif ($target eq 'answer' || $target eq 'analyze') {
690: if ($target eq 'analyze') {
691: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
692: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
693: &Apache::response::check_if_computed($token,$parstack,$safeeval,
694: 'answer');
695: }
696: &Apache::response::setup_params('stringresponse',$safeeval);
697: if ($target eq 'answer') {
698: $result.=&Apache::response::answer_header('stringresponse');
699: }
700: # foreach my $ans (@answers) {
701: if ($target eq 'answer') {
702: $result.=&Apache::response::answer_part('stringresponse',$answer);
703: } elsif ($target eq 'analyze') {
704: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
705: $answer);
706: }
707: # }
708: my $string='Case Insensitive';
709: if ($type eq 'mc') {
710: $string='Multiple Choice';
711: } elsif ($type eq 'cs') {
712: $string='Case Sensitive';
713: } elsif ($type eq 'ci') {
714: $string='Case Insensitive';
715: } elsif ($type eq 're') {
716: $string='Regular Expression';
717: }
718: if ($target eq 'answer') {
719: if ($ENV{'form.answer_output_mode'} eq 'tex') {
720: $result.=&Apache::response::answer_part('stringresponse',
721: "$string");
722: } else {
723: $result.=&Apache::response::answer_part('stringresponse',
724: "<b>$string</b>");
725: }
726: } elsif ($target eq 'analyze') {
727: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
728: $type);
729: }
730: if ($target eq 'answer') {
731: $result.=&Apache::response::answer_footer('stringresponse');
732: }
733: } elsif ($target eq 'edit') {
734: $result.='</td></tr>'.&Apache::edit::end_table;
735: }
736: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
737: $target eq 'tex' || $target eq 'analyze') {
738: &Apache::lonxml::increment_counter($increment);
739: }
740: &Apache::response::end_response;
741: return $result;
742: }
743:
744: sub start_formularesponse {
745: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
746: my $result;
747: if ($target eq 'meta') {
748: &Apache::response::start_response($parstack,$safeeval);
749: $result=&Apache::response::meta_package_write('formularesponse');
750: &Apache::response::end_response();
751: } else {
752: $result.=&start_numericalresponse(@_);
753: }
754: return $result;
755: }
756:
757: sub end_formularesponse {
758: return end_numericalresponse(@_);
759: }
760:
761: 1;
762: __END__
763:
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