1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.163 2005/02/21 20:29:00 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=$$tagstack[-1]; }
131: if ( $target eq 'grade' && &Apache::response::submitted() ) {
132: &Apache::response::setup_params($tag,$safeeval);
133: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
134: my $partid = $Apache::inputtags::part;
135: my $id = $Apache::inputtags::response['-1'];
136: if ($Apache::lonhomework::type eq 'exam' &&
137: $tag eq 'formularesponse') {
138: $increment=&Apache::response::scored_response($partid,$id);
139: } else {
140: my $response = &Apache::response::getresponse();
141: if ( $response =~ /[^\s]/) {
142: my $ad;
143: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
144: &Apache::lonxml::debug("submitted a $response<br>\n");
145: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
146:
147: if ( &Apache::response::submitted('scantron')) {
148: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
149: if (!$number_of_bubbles) { $number_of_bubbles=8; }
150: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
151: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
152: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
153: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
154: my ($values,$display)=&make_numerical_bubbles($number_of_bubbles,$target,$answers[0],$formats[0],\@incorrect,$safeeval);
155: $response=$values->[$response];
156: }
157: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
158: my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
159: $$args_ref{'response'}=$response;
160: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
161:
162: foreach my $arg ('type','tol','sig','format','unit','calc',
163: 'samples') {
164: $$args_ref{$arg}=
165: &Apache::lonxml::get_param($arg,$parstack,$safeeval);
166: }
167: foreach my $key (keys(%Apache::inputtags::params)) {
168: $$args_ref{$key}=$Apache::inputtags::params{$key};
169: }
170:
171: #no way to enter units, with radio buttons
172: if ($Apache::lonhomework::type eq 'exam' ||
173: lc($hideunit) eq "yes") {
174: delete($$args_ref{'unit'});
175: }
176: #sig fig don't make much sense either
177: if (($Apache::lonhomework::type eq 'exam' ||
178: &Apache::response::submitted('scantron')) &&
179: $tag eq 'numericalresponse') {
180: delete($$args_ref{'sig'});
181: }
182:
183: if ($tag eq 'formularesponse') {
184: $$args_ref{'type'}='fml';
185: } elsif ($tag eq 'numericalresponse') {
186: $$args_ref{'type'}='float';
187: }
188: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
189: &Apache::lonxml::debug('answer is'.join(':',@answer));
190: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=@answer;
191:
192: ($result,my @msgs) =
193: &Apache::run::run("&caparesponse_check_list()",$safeeval);
194: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
195: my ($awards)=split(/:/,$result);
196: my (@awards) = split(/,/,$awards);
197: ($ad,my $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
198: &Apache::lonxml::debug('ad is'.$ad);
199: if ($ad eq 'SIG_FAIL') {
200: my ($sig_u,$sig_l)=
201: &get_sigrange($Apache::inputtags::params{'sig'});
202: $msg=join(':',$msg,$sig_l,$sig_u);
203: &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
204: $Apache::inputtags::params{'sig'});
205: }
206: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
207: if ($Apache::lonhomework::type eq 'survey' &&
208: ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
209: $ad eq 'EXACT_ANS')) {
210: $ad='SUBMITTED';
211: }
212: &Apache::response::handle_previous(\%previous,$ad);
213: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
214: $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
215: $result='';
216: }
217: }
218: } elsif ($target eq 'web' || $target eq 'tex') {
219: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
220: $safeeval);
221: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
222: my $status = $Apache::inputtags::status['-1'];
223: if ($Apache::lonhomework::type eq 'exam') {
224: my $partid=$Apache::inputtags::part;
225: my $id=$Apache::inputtags::response[-1];
226: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
227: if ($Apache::inputtags::params{'numbubbles'}) {
228: $number_of_bubbles = $Apache::inputtags::params{'numbubbles'};
229: }
230: if (!$number_of_bubbles) { $number_of_bubbles=8; }
231:
232: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
233: $safeeval);
234: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
235: $safeeval);
236: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
237: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
238: my ($bubble_values,$bubble_display)=
239: &make_numerical_bubbles($number_of_bubbles,
240: $target,$answers[0],
241: $formats[0],\@incorrect,$safeeval);
242: my @alphabet=('A'..'Z');
243: if ($target eq 'web') {
244: if ($tag eq 'numericalresponse') {
245: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
246: $result.= '<table border="1"><tr>';
247: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
248: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
249: my $checked='';
250: if ($previous eq $bubble_values->[$ind]) {
251: $checked=" checked='on' ";
252: }
253: $result.='<td><input type="radio" name="HWVAL_'.$id.
254: '" value="'.$bubble_values->[$ind].'" '.$checked
255: .' /><b>'.$alphabet[$ind].'</b>: '.
256: $bubble_display->[$ind].'</td>';
257: }
258: $result.='</tr></table>';
259: } elsif ($tag eq 'formularesponse') {
260: $result.= '<br /><br /><font color="red">
261: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
262: </textarea></font> <br /><br />';
263: }
264: } elsif ($target eq 'tex') {
265: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
266: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
267: }
268: if ($tag eq 'numericalresponse') {
269: my ($celllength,$number_of_tables,@table_range)=
270: &get_table_sizes($number_of_bubbles,$bubble_display);
271: my $j=0;
272: my $cou=0;
273: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
274: for (my $i=0;$i<$number_of_tables;$i++) {
275: $result.='\vskip -1 mm \noindent \setlength{\tabcolsep}{2 mm}\begin{tabular}{';
276: for (my $ind=0;$ind<$table_range[$j];$ind++) {
277: $result.='p{3 mm}p{'.$celllength.' mm}';
278: }
279: $result.='}';
280: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
281: $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_display->[$ind].'} ';
282: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
283: }
284: $cou += $table_range[$j];
285: $j++;
286: $result.='\\\\\end{tabular}\vskip 0 mm ';
287: }
288: $result.='\end{enumerate}';
289: } else {
290: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
291: my $repetition = &Apache::response::repetition();
292: $result.='\begin{enumerate}';
293: for (my $i=0;$i<$repetition;$i++) {
294: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
295: }
296: $increment=$repetition;
297: $result.= '\end{enumerate}';
298: }
299: }
300: }
301: } elsif ($target eq 'edit') {
302: $result.='</td></tr>'.&Apache::edit::end_table;
303: } elsif ($target eq 'answer' || $target eq 'analyze') {
304:
305: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
306: if ($target eq 'analyze') {
307: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
308: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
309: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
310: if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
311: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
312: &Apache::response::check_if_computed($token,$parstack,
313: $safeeval,'answer');
314: }
315: if (scalar(@$tagstack)) {
316: &Apache::response::setup_params($tag,$safeeval);
317: }
318: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
319: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
320: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
321: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
322:
323: if ($target eq 'answer') {
324: $result.=&Apache::response::answer_header($tag);
325: }
326: for(my $i=0;$i<=$#answers;$i++) {
327: my $ans=$answers[$i];
328: my $fmt=$formats[0];
329: if (@formats && $#formats) {$fmt=$formats[$i];}
330: my ($high,$low);
331: if ($Apache::inputtags::params{'tol'}) {
332: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
333: }
334: my ($sighigh,$siglow);
335: if ($Apache::inputtags::params{'sig'}) {
336: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
337: }
338: if ($fmt && $tag eq 'numericalresponse') {
339: $fmt=~s/e/E/g;
340: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
341: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
342: $ans = &format_number($ans,$fmt,$target,$safeeval);
343: #if ($high) {
344: # $high=&format_number($high,$fmt,$target,$safeeval);
345: # $low =&format_number($low,$fmt,$target,$safeeval);
346: #}
347: }
348: if ($target eq 'answer') {
349: if ($high && $tag eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
350: if (defined($sighigh) && $tag eq 'numericalresponse') {
351: if ($ENV{'form.answer_output_mode'} eq 'tex') {
352: $ans.= " Sig $siglow - $sighigh";
353: } else {
354: $ans.= " Sig <i>$siglow - $sighigh</i>";
355: }
356: }
357: $result.=&Apache::response::answer_part($tag,$ans);
358: } elsif ($target eq 'analyze') {
359: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
360: if ($high) {
361: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
362: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
363: }
364: }
365: }
366: if (defined($unit) and ($unit ne '') and
367: $tag eq 'numericalresponse') {
368: if ($target eq 'answer') {
369: if ($ENV{'form.answer_output_mode'} eq 'tex') {
370: $result.=&Apache::response::answer_part($tag,
371: " Unit: $unit ");
372: } else {
373: $result.=&Apache::response::answer_part($tag,
374: "Unit: <b>$unit</b>");
375: }
376: } elsif ($target eq 'analyze') {
377: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
378: }
379: }
380: if ($tag eq 'formularesponse' && $target eq 'answer') {
381: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
382: $result.=&Apache::response::answer_part($tag,$samples);
383: }
384: if ($target eq 'answer') {
385: $result.=&Apache::response::answer_footer($tag);
386: }
387: }
388: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
389: $target eq 'tex' || $target eq 'analyze') {
390: &Apache::lonxml::increment_counter($increment);
391: }
392: &Apache::response::end_response;
393: return $result;
394: }
395:
396: sub get_table_sizes {
397: my ($number_of_bubbles,$rbubble_values)=@_;
398: my $scale=2; #mm for one digit
399: my $cell_width=0;
400: foreach my $member (@$rbubble_values) {
401: my $cell_width_real=0;
402: if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) {
403: $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
404: } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
405: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
406: } elsif ($member=~/(\d*)\.(\d*)/) {
407: $cell_width_real=(length($1)+length($2)+3)*$scale;
408: } else {
409: $cell_width_real=(length($member)+1)*$scale*0.9;
410: }
411: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
412: }
413: $cell_width+=8;
414: my $textwidth;
415: if ($ENV{'form.textwidth'} ne '') {
416: $ENV{'form.textwidth'}=~/(\d*)\.?(\d*)/;
417: $textwidth=$1.'.'.$2;
418: } else {
419: $ENV{'textwidth'}=~/(\d+)\.?(\d*)/;
420: $textwidth=$1.'.'.$2;
421: }
422: my $bubbles_per_line=int($textwidth/$cell_width);
423: if ($bubbles_per_line > $number_of_bubbles) {
424: $bubbles_per_line=$number_of_bubbles;
425: }elsif (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;}
426: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
427: my @table_range = ();
428: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
429: if ($number_of_bubbles % $bubbles_per_line) {
430: $number_of_tables++;
431: push @table_range,($number_of_bubbles % $bubbles_per_line);
432: }
433: $cell_width-=8;
434: $cell_width=$cell_width*3/4;
435: return ($cell_width,$number_of_tables,@table_range);
436: }
437:
438: sub format_number {
439: my ($number,$format,$target,$safeeval)=@_;
440: my $ans;
441: if ($format eq '') {
442: #What is the number? (integer,decimal,floating point)
443: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
444: $format = '3e';
445: } elsif ($number=~/^(\d*)\.(\d*)$/) {
446: $format = '4f';
447: } elsif ($number=~/^(\d*)$/) {
448: $format = 'd';
449: }
450: }
451: if (!$Apache::lonxml::default_homework_loaded) {
452: &Apache::lonxml::default_homework_load($safeeval);
453: }
454: $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
455: return $ans;
456: }
457:
458: sub make_numerical_bubbles {
459: my ($number_of_bubbles,$target,$answer,$format,$incorrect,$safeeval) =@_;
460: my @bubble_values=();
461: &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
462: my @oldseed=&Math::Random::random_get_seed();
463: if (defined($incorrect) && ref($incorrect)) {
464: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
465: if (defined($$incorrect[0]) &&
466: scalar(@$incorrect)+1 >= $number_of_bubbles) {
467: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
468: &Apache::response::setrandomnumber();
469: my @rand_inc=&Math::Random::random_permutation(@$incorrect);
470: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
471: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
472: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
473: &Math::Random::random_set_seed(@oldseed);
474: if (defined($format) && $format ne '') {
475: my @bubble_display;
476: foreach my $value (@bubble_values) {
477: push(@bubble_display,
478: &format_number($value,$format,$target,$safeeval));
479: }
480: return (\@bubble_values,\@bubble_display);
481: } else {
482: return (\@bubble_values,\@bubble_values);
483: }
484: }
485: if (defined($$incorrect[0]) &&
486: scalar(@$incorrect)+1 < $number_of_bubbles) {
487: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them (".join(',',@$incorrect).").");
488: }
489: }
490: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
491: my @powers = (1..$number_of_bubbles);
492: &Apache::response::setrandomnumber();
493: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
494: my $power = $powers[$ind];
495: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
496: my $factor = $factors[$ind];
497: my @bubble_display;
498: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
499: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
500: $bubble_display[$ind] = &format_number($bubble_values[$ind],
501: $format,$target,$safeeval);
502:
503: }
504: &Math::Random::random_set_seed(@oldseed);
505: return (\@bubble_values,\@bubble_display);
506: }
507:
508: sub get_tolrange {
509: my ($ans,$tol)=@_;
510: my ($high,$low);
511: if ($tol =~ /%$/) {
512: chop($tol);
513: my $change=$ans*($tol/100.0);
514: $high=$ans+$change;
515: $low=$ans-$change;
516: } else {
517: $high=$ans+$tol;
518: $low=$ans-$tol;
519: }
520: return ($high,$low);
521: }
522:
523: sub get_sigrange {
524: my ($sig)=@_;
525: &Apache::lonxml::debug("Got a sig of :$sig:");
526: my $courseid=$ENV{'request.course.id'};
527: if (lc($ENV{"course.$courseid.disablesigfigs"}) eq 'yes') {
528: return (15,0);
529: }
530: my $sig_lbound;
531: my $sig_ubound;
532: if ($sig eq '') {
533: $sig_lbound = 0; #SIG_LB_DEFAULT
534: $sig_ubound =15; #SIG_UB_DEFAULT
535: } else {
536: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
537: if (!defined($sig_lbound)) {
538: $sig_lbound = 0; #SIG_LB_DEFAULT
539: $sig_ubound =15; #SIG_UB_DEFAULT
540: }
541: if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
542: }
543: if (($sig_ubound<$sig_lbound) ||
544: ($sig_lbound > 15) ||
545: ($sig =~/(\+|-)/ ) ) {
546: my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
547: if ($ENV{'request.state'} eq 'construct') {
548: $errormsg.=
549: &Apache::loncommon::help_open_topic('Significant_Figures');
550: }
551: &Apache::lonxml::error($errormsg);
552: }
553: return ($sig_ubound,$sig_lbound);
554: }
555:
556: sub start_stringresponse {
557: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
558: my $result;
559: my $id = &Apache::response::start_response($parstack,$safeeval);
560: if ($target eq 'meta') {
561: $result=&Apache::response::meta_package_write('stringresponse');
562: } elsif ($target eq 'edit') {
563: $result.=&Apache::edit::tag_start($target,$token);
564: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
565: $result.=&Apache::edit::select_arg('Type:','type',
566: [['cs','Case Sensitive'],['ci','Case Insensitive'],
567: ['mc','Case Insensitive, Any Order'],
568: ['re','Regular Expression']],$token);
569: $result.=&Apache::edit::text_arg('String to display for answer:',
570: 'answerdisplay',$token);
571: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
572: } elsif ($target eq 'modified') {
573: my $constructtag;
574: $constructtag=&Apache::edit::get_new_args($token,$parstack,
575: $safeeval,'answer',
576: 'type','answerdisplay');
577: if ($constructtag) {
578: $result = &Apache::edit::rebuild_tag($token);
579: $result.=&Apache::edit::handle_insert();
580: }
581: } elsif ($target eq 'web') {
582: if ( &Apache::response::show_answer() ) {
583: my $answer=
584: &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
585: if (!defined $answer || $answer eq '') {
586: $answer=
587: &Apache::lonxml::get_param('answer',$parstack,$safeeval);
588: }
589: $Apache::inputtags::answertxt{$id}=$answer;
590: }
591: } elsif ($target eq 'answer' || $target eq 'grade') {
592: &Apache::response::reset_params();
593: }
594: return $result;
595: }
596:
597: sub end_stringresponse {
598: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
599: my $increment=1;
600: my $result = '';
601: my $part=$Apache::inputtags::part;
602: my $id=$Apache::inputtags::response[-1];
603: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
604: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
605: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
606: &Apache::lonxml::debug("current $answer ".$token->[2]);
607: if (!$Apache::lonxml::default_homework_loaded) {
608: &Apache::lonxml::default_homework_load($safeeval);
609: }
610: if ( $target eq 'grade' && &Apache::response::submitted() ) {
611: &Apache::response::setup_params('stringresponse',$safeeval);
612: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
613: if ($Apache::lonhomework::type eq 'exam' ||
614: &Apache::response::submitted('scantron')) {
615: $increment=&Apache::response::scored_response($part,$id);
616: } elsif (0 && $Apache::lonhomework::type eq 'survey') {
617: my $response = &Apache::response::getresponse();
618: if ( $response =~ /[^\s]/) {
619: my %previous=&Apache::response::check_for_previous($response,
620: $part,$id);
621: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
622: $response;
623: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
624: &Apache::response::handle_previous(\%previous,$ad);
625: }
626: } else {
627: my $response = &Apache::response::getresponse();
628: if ( $response =~ /[^\s]/) {
629: my %previous = &Apache::response::check_for_previous($response,
630: $part,$id);
631: &Apache::lonxml::debug("submitted a $response<br>\n");
632: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
633: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
634: $response;
635: my ($ad,$msg);
636: if ($type eq 're' ) {
637: # if the RE wasn't in a var it likely got munged,
638: # thus grab it from the var directly
639: # my $testans=$token->[2]->{'answer'};
640: # if ($testans !~ m/^\s*\$/) {
641: # $answer=$token->[2]->{'answer'};
642: # }
643: ${$safeeval->varglob('LONCAPA::response')}=$response;
644: $result = &Apache::run::run('return $LONCAPA::response=~m'.$answer,$safeeval);
645: &Apache::lonxml::debug("current $response");
646: &Apache::lonxml::debug("current $answer");
647: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
648: } else {
649: my $args_ref=
650: \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
651:
652: $$args_ref{'response'}=$response;
653: &Apache::lonxml::debug("current $response");
654: $$args_ref{'type'}=
655: &Apache::lonxml::get_param('type',$parstack,$safeeval);
656: foreach my $key (keys(%Apache::inputtags::params)) {
657: $$args_ref{$key}=$Apache::inputtags::params{$key};
658: }
659: &Apache::lonxml::debug('answer is'.join(':',$answer));
660: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=($answer);
661: ($result, my @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
662: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
663: my ($awards)=split(/:/,$result);
664: my (@awards) = split(/,/,$awards);
665: ($ad,$msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
666: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
667: }
668: if ($Apache::lonhomework::type eq 'survey' &&
669: ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
670: $ad eq 'EXACT_ANS')) {
671: $ad='SUBMITTED';
672: }
673: &Apache::response::handle_previous(\%previous,$ad);
674: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
675: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
676: }
677: }
678: } elsif ($target eq 'web' || $target eq 'tex') {
679: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
680: my $status = $Apache::inputtags::status['-1'];
681: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
682: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
683: $increment = &Apache::response::repetition();
684: $result.='\begin{enumerate}';
685: for (my $i=0;$i<$increment;$i++) {
686: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
687: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
688: }
689: $result.= '\end{enumerate}';
690: }
691: } elsif ($target eq 'answer' || $target eq 'analyze') {
692: if ($target eq 'analyze') {
693: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
694: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
695: &Apache::response::check_if_computed($token,$parstack,$safeeval,
696: 'answer');
697: }
698: &Apache::response::setup_params('stringresponse',$safeeval);
699: if ($target eq 'answer') {
700: $result.=&Apache::response::answer_header('stringresponse');
701: }
702: # foreach my $ans (@answers) {
703: if ($target eq 'answer') {
704: $result.=&Apache::response::answer_part('stringresponse',$answer);
705: } elsif ($target eq 'analyze') {
706: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
707: $answer);
708: }
709: # }
710: my $string='Case Insensitive';
711: if ($type eq 'mc') {
712: $string='Multiple Choice';
713: } elsif ($type eq 'cs') {
714: $string='Case Sensitive';
715: } elsif ($type eq 'ci') {
716: $string='Case Insensitive';
717: } elsif ($type eq 're') {
718: $string='Regular Expression';
719: }
720: if ($target eq 'answer') {
721: if ($ENV{'form.answer_output_mode'} eq 'tex') {
722: $result.=&Apache::response::answer_part('stringresponse',
723: "$string");
724: } else {
725: $result.=&Apache::response::answer_part('stringresponse',
726: "<b>$string</b>");
727: }
728: } elsif ($target eq 'analyze') {
729: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
730: $type);
731: }
732: if ($target eq 'answer') {
733: $result.=&Apache::response::answer_footer('stringresponse');
734: }
735: } elsif ($target eq 'edit') {
736: $result.='</td></tr>'.&Apache::edit::end_table;
737: }
738: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
739: $target eq 'tex' || $target eq 'analyze') {
740: &Apache::lonxml::increment_counter($increment);
741: }
742: &Apache::response::end_response;
743: return $result;
744: }
745:
746: sub start_formularesponse {
747: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
748: my $result;
749: if ($target eq 'meta') {
750: &Apache::response::start_response($parstack,$safeeval);
751: $result=&Apache::response::meta_package_write('formularesponse');
752: &Apache::response::end_response();
753: } else {
754: $result.=&start_numericalresponse(@_);
755: }
756: return $result;
757: }
758:
759: sub end_formularesponse {
760: return end_numericalresponse(@_);
761: }
762:
763: 1;
764: __END__
765:
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