1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.179 2005/08/29 18:36:03 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: my ($sigline,$tolline);
334: for(my $i=0;$i<=$#answers;$i++) {
335: my $ans=$answers[$i];
336: my $fmt=$formats[0];
337: if (@formats && $#formats) {$fmt=$formats[$i];}
338: my ($high,$low);
339: if ($Apache::inputtags::params{'tol'}) {
340: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
341: }
342: my ($sighigh,$siglow);
343: if ($Apache::inputtags::params{'sig'}) {
344: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
345: }
346: if ($fmt && $tag eq 'numericalresponse') {
347: $fmt=~s/e/E/g;
348: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
349: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
350: $ans = &format_number($ans,$fmt,$target,$safeeval);
351: #if ($high) {
352: # $high=&format_number($high,$fmt,$target,$safeeval);
353: # $low =&format_number($low,$fmt,$target,$safeeval);
354: #}
355: }
356: if ($target eq 'answer') {
357: if ($high && $tag eq 'numericalresponse') {
358: $ans.=' ['.$low.','.$high.']';
359: $tolline .= "[$low, $high]";
360: }
361: if (defined($sighigh) && $tag eq 'numericalresponse') {
362: if ($env{'form.answer_output_mode'} eq 'tex') {
363: $ans.= " Sig $siglow - $sighigh";
364: } else {
365: $ans.= " Sig <i>$siglow - $sighigh</i>";
366: $sigline .= "[$siglow, $sighigh]";
367: }
368: }
369: $result.=&Apache::response::answer_part($tag,$ans);
370: } elsif ($target eq 'analyze') {
371: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
372: if ($high) {
373: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
374: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
375: }
376: if ($fmt) {
377: push (@{ $Apache::lonhomework::analyze{"$part_id.format"} }, $fmt);
378: }
379: }
380: }
381:
382: my @fmt_ans;
383: for(my $i=0;$i<=$#answers;$i++) {
384: my $ans=$answers[$i];
385: my $fmt=$formats[0];
386: if (@formats && $#formats) {$fmt=$formats[$i];}
387: if ($fmt && $tag eq 'numericalresponse') {
388: $fmt=~s/e/E/g;
389: if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
390: if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
391: $ans = &format_number($ans,$fmt,$target,$safeeval);
392: if ($fmt=~/\$/ && $unit!~/\$/) { $ans=~s/\$//; }
393: }
394: push(@fmt_ans,$ans);
395: }
396: my $response=join(', ',@fmt_ans);
397: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.
398: $id.'.turnoffunit');
399: if ($unit ne '' &&
400: ! ($Apache::lonhomework::type eq 'exam' ||
401: lc($hideunit) eq "yes") ) {
402: my $cleanunit=$unit;
403: $cleanunit=~s/\$\,//g;
404: $response.=" $cleanunit";
405: }
406:
407: my ($awards,$msgs)=&check_submission($response,$partid,$id,$tag,
408: $parstack,$safeeval);
409: my ($ad,$msg) =&Apache::inputtags::finalizeawards($awards,$msgs);
410: if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
411: my $error;
412: if ($tag eq 'formularesponse') {
413: $error=&mt('Computer\'s answer is incorrect ("[_1]").');
414: } else {
415: # answer failed check if it is sig figs that is failing
416: my ($awards,$msgs)=&check_submission($response,$partid,$id,
417: $tag,$parstack,
418: $safeeval,1);
419: ($ad,$msg)=&Apache::inputtags::finalizeawards($awards,
420: $msgs);
421:
422: if ($sigline ne '') {
423: $error=&mt('Computer\'s answer is incorrect ("[_1]"). It is likely that the tolerance range [_2] or significant figures [_3] need to be adjusted.',$response,$tolline,$sigline);
424: } else {
425: $error=&mt('Computer\'s answer is incorrect ("[_1]"). It is likely that the tolerance range [_1] needs to be adjusted.',$response,$tolline);
426: }
427: }
428: if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
429: &Apache::lonxml::error($error);
430: } else {
431: &Apache::lonxml::warning($error);
432: }
433: }
434:
435: if (defined($unit) and ($unit ne '') and
436: $tag eq 'numericalresponse') {
437: if ($target eq 'answer') {
438: if ($env{'form.answer_output_mode'} eq 'tex') {
439: $result.=&Apache::response::answer_part($tag,
440: " Unit: $unit ");
441: } else {
442: $result.=&Apache::response::answer_part($tag,
443: "Unit: <b>$unit</b>");
444: }
445: } elsif ($target eq 'analyze') {
446: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
447: }
448: }
449: if ($tag eq 'formularesponse' && $target eq 'answer') {
450: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
451: $result.=&Apache::response::answer_part($tag,$samples);
452: }
453: if ($target eq 'answer') {
454: $result.=&Apache::response::answer_footer($tag);
455: }
456: }
457: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
458: $target eq 'tex' || $target eq 'analyze') {
459: &Apache::lonxml::increment_counter($increment);
460: }
461: &Apache::response::end_response;
462: return $result;
463: }
464:
465: sub get_table_sizes {
466: my ($number_of_bubbles,$rbubble_values)=@_;
467: my $scale=2; #mm for one digit
468: my $cell_width=0;
469: foreach my $member (@$rbubble_values) {
470: my $cell_width_real=0;
471: if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) {
472: $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
473: } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
474: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
475: } elsif ($member=~/(\d*)\.(\d*)/) {
476: $cell_width_real=(length($1)+length($2)+3)*$scale;
477: } else {
478: $cell_width_real=(length($member)+1)*$scale*0.9;
479: }
480: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
481: }
482: $cell_width+=8;
483: my $textwidth;
484: if ($env{'form.textwidth'} ne '') {
485: $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
486: $textwidth=$1.'.'.$2;
487: } else {
488: $env{'form.textwidth'}=~/(\d+)\.?(\d*)/;
489: $textwidth=$1.'.'.$2;
490: }
491: my $bubbles_per_line=int($textwidth/$cell_width);
492: if ($bubbles_per_line > $number_of_bubbles) {
493: $bubbles_per_line=$number_of_bubbles;
494: }elsif (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;}
495: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
496: my @table_range = ();
497: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
498: if ($number_of_bubbles % $bubbles_per_line) {
499: $number_of_tables++;
500: push @table_range,($number_of_bubbles % $bubbles_per_line);
501: }
502: $cell_width-=8;
503: $cell_width=$cell_width*3/4;
504: return ($cell_width,$number_of_tables,@table_range);
505: }
506:
507: sub format_number {
508: my ($number,$format,$target,$safeeval)=@_;
509: my $ans;
510: if ($format eq '') {
511: #What is the number? (integer,decimal,floating point)
512: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
513: $format = '3e';
514: } elsif ($number=~/^(\d*)\.(\d*)$/) {
515: $format = '4f';
516: } elsif ($number=~/^(\d*)$/) {
517: $format = 'd';
518: }
519: }
520: if (!$Apache::lonxml::default_homework_loaded) {
521: &Apache::lonxml::default_homework_load($safeeval);
522: }
523: $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
524: return $ans;
525: }
526:
527: sub make_numerical_bubbles {
528: my ($number_of_bubbles,$target,$answer,$format,$incorrect,$safeeval) =@_;
529: my @bubble_values=();
530: &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
531: my @oldseed=&Math::Random::random_get_seed();
532: if (defined($incorrect) && ref($incorrect)) {
533: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
534: if (defined($$incorrect[0]) &&
535: scalar(@$incorrect)+1 >= $number_of_bubbles) {
536: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
537: &Apache::response::setrandomnumber();
538: my @rand_inc=&Math::Random::random_permutation(@$incorrect);
539: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
540: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
541: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
542: &Math::Random::random_set_seed(@oldseed);
543: if (defined($format) && $format ne '') {
544: my @bubble_display;
545: foreach my $value (@bubble_values) {
546: push(@bubble_display,
547: &format_number($value,$format,$target,$safeeval));
548: }
549: return (\@bubble_values,\@bubble_display);
550: } else {
551: return (\@bubble_values,\@bubble_values);
552: }
553: }
554: if (defined($$incorrect[0]) &&
555: scalar(@$incorrect)+1 < $number_of_bubbles) {
556: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them (".join(',',@$incorrect).").");
557: }
558: }
559: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
560: my @powers = (1..$number_of_bubbles);
561: &Apache::response::setrandomnumber();
562: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
563: my $power = $powers[$ind];
564: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
565: my $factor = $factors[$ind];
566: my @bubble_display;
567: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
568: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
569: $bubble_display[$ind] = &format_number($bubble_values[$ind],
570: $format,$target,$safeeval);
571:
572: }
573: &Math::Random::random_set_seed(@oldseed);
574: return (\@bubble_values,\@bubble_display);
575: }
576:
577: sub get_tolrange {
578: my ($ans,$tol)=@_;
579: my ($high,$low);
580: if ($tol =~ /%$/) {
581: chop($tol);
582: my $change=$ans*($tol/100.0);
583: $high=$ans+$change;
584: $low=$ans-$change;
585: } else {
586: $high=$ans+$tol;
587: $low=$ans-$tol;
588: }
589: return ($high,$low);
590: }
591:
592: sub get_sigrange {
593: my ($sig)=@_;
594: &Apache::lonxml::debug("Got a sig of :$sig:");
595: my $courseid=$env{'request.course.id'};
596: if (lc($env{"course.$courseid.disablesigfigs"}) eq 'yes') {
597: return (15,0);
598: }
599: my $sig_lbound;
600: my $sig_ubound;
601: if ($sig eq '') {
602: $sig_lbound = 0; #SIG_LB_DEFAULT
603: $sig_ubound =15; #SIG_UB_DEFAULT
604: } else {
605: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
606: if (!defined($sig_lbound)) {
607: $sig_lbound = 0; #SIG_LB_DEFAULT
608: $sig_ubound =15; #SIG_UB_DEFAULT
609: }
610: if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
611: }
612: if (($sig_ubound<$sig_lbound) ||
613: ($sig_lbound > 15) ||
614: ($sig =~/(\+|-)/ ) ) {
615: my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
616: if ($env{'request.state'} eq 'construct') {
617: $errormsg.=
618: &Apache::loncommon::help_open_topic('Significant_Figures');
619: }
620: &Apache::lonxml::error($errormsg);
621: }
622: return ($sig_ubound,$sig_lbound);
623: }
624:
625: sub start_stringresponse {
626: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
627: my $result;
628: my $id = &Apache::response::start_response($parstack,$safeeval);
629: if ($target eq 'meta') {
630: $result=&Apache::response::meta_package_write('stringresponse');
631: } elsif ($target eq 'edit') {
632: $result.=&Apache::edit::tag_start($target,$token);
633: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
634: $result.=&Apache::edit::select_arg('Type:','type',
635: [['cs','Case Sensitive'],['ci','Case Insensitive'],
636: ['mc','Case Insensitive, Any Order'],
637: ['re','Regular Expression']],$token);
638: $result.=&Apache::edit::text_arg('String to display for answer:',
639: 'answerdisplay',$token);
640: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
641: } elsif ($target eq 'modified') {
642: my $constructtag;
643: $constructtag=&Apache::edit::get_new_args($token,$parstack,
644: $safeeval,'answer',
645: 'type','answerdisplay');
646: if ($constructtag) {
647: $result = &Apache::edit::rebuild_tag($token);
648: $result.=&Apache::edit::handle_insert();
649: }
650: } elsif ($target eq 'web') {
651: if ( &Apache::response::show_answer() ) {
652: my $answer=
653: &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
654: if (!defined $answer || $answer eq '') {
655: $answer=
656: &Apache::lonxml::get_param('answer',$parstack,$safeeval);
657: }
658: $Apache::inputtags::answertxt{$id}=$answer;
659: }
660: } elsif ($target eq 'answer' || $target eq 'grade') {
661: &Apache::response::reset_params();
662: }
663: return $result;
664: }
665:
666: sub end_stringresponse {
667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
668: my $increment=1;
669: my $result = '';
670: my $part=$Apache::inputtags::part;
671: my $id=$Apache::inputtags::response[-1];
672: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
673: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
674: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
675: &Apache::lonxml::debug("current $answer ".$token->[2]);
676: if (!$Apache::lonxml::default_homework_loaded) {
677: &Apache::lonxml::default_homework_load($safeeval);
678: }
679: if ( $target eq 'grade' && &Apache::response::submitted() ) {
680: &Apache::response::setup_params('stringresponse',$safeeval);
681: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
682: if ($Apache::lonhomework::type eq 'exam' ||
683: &Apache::response::submitted('scantron')) {
684: $increment=&Apache::response::scored_response($part,$id);
685: } else {
686: my $response = &Apache::response::getresponse();
687: if ( $response =~ /[^\s]/) {
688: my %previous = &Apache::response::check_for_previous($response,
689: $part,$id);
690: &Apache::lonxml::debug("submitted a $response<br>\n");
691: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
692: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
693: $response;
694: my ($ad,$msg);
695: if ($type eq 're' ) {
696: # if the RE wasn't in a var it likely got munged,
697: # thus grab it from the var directly
698: # my $testans=$token->[2]->{'answer'};
699: # if ($testans !~ m/^\s*\$/) {
700: # $answer=$token->[2]->{'answer'};
701: # }
702: ${$safeeval->varglob('LONCAPA::response')}=$response;
703: $result = &Apache::run::run('if ($LONCAPA::response=~m'.$answer.') { return 1; } else { return 0; }',$safeeval);
704: &Apache::lonxml::debug("current $response");
705: &Apache::lonxml::debug("current $answer");
706: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
707: } else {
708: my $args_ref=
709: \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
710:
711: $$args_ref{'response'}=$response;
712: &Apache::lonxml::debug("current $response");
713: $$args_ref{'type'}=
714: &Apache::lonxml::get_param('type',$parstack,$safeeval);
715: foreach my $key (keys(%Apache::inputtags::params)) {
716: $$args_ref{$key}=$Apache::inputtags::params{$key};
717: }
718: &Apache::lonxml::debug('answer is'.join(':',$answer));
719: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=($answer);
720: ($result, my @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
721: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
722: my ($awards)=split(/:/,$result);
723: my (@awards) = split(/,/,$awards);
724: ($ad,$msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
725: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
726: }
727: if ($Apache::lonhomework::type eq 'survey' &&
728: ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
729: $ad eq 'EXACT_ANS')) {
730: $ad='SUBMITTED';
731: }
732: &Apache::response::handle_previous(\%previous,$ad);
733: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
734: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
735: }
736: }
737: } elsif ($target eq 'web' || $target eq 'tex') {
738: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
739: my $status = $Apache::inputtags::status['-1'];
740: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
741: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
742: $increment = &Apache::response::repetition();
743: $result.='\begin{enumerate}';
744: for (my $i=0;$i<$increment;$i++) {
745: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
746: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
747: }
748: $result.= '\end{enumerate}';
749: }
750: } elsif ($target eq 'answer' || $target eq 'analyze') {
751: if ($target eq 'analyze') {
752: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
753: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
754: &Apache::response::check_if_computed($token,$parstack,$safeeval,
755: 'answer');
756: }
757: &Apache::response::setup_params('stringresponse',$safeeval);
758: if ($target eq 'answer') {
759: $result.=&Apache::response::answer_header('stringresponse');
760: }
761: # foreach my $ans (@answers) {
762: if ($target eq 'answer') {
763: $result.=&Apache::response::answer_part('stringresponse',$answer);
764: if ($type eq 're') {
765: $result.=&Apache::response::answer_part('stringresponse',
766: $answerdisplay);
767: }
768: } elsif ($target eq 'analyze') {
769: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
770: $answer);
771: }
772: # }
773: my $string='Case Insensitive';
774: if ($type eq 'mc') {
775: $string='Multiple Choice';
776: } elsif ($type eq 'cs') {
777: $string='Case Sensitive';
778: } elsif ($type eq 'ci') {
779: $string='Case Insensitive';
780: } elsif ($type eq 're') {
781: $string='Regular Expression';
782: }
783: if ($target eq 'answer') {
784: if ($env{'form.answer_output_mode'} eq 'tex') {
785: $result.=&Apache::response::answer_part('stringresponse',
786: "$string");
787: } else {
788: $result.=&Apache::response::answer_part('stringresponse',
789: "<b>$string</b>");
790: }
791: } elsif ($target eq 'analyze') {
792: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
793: $type);
794: }
795: if ($target eq 'answer') {
796: $result.=&Apache::response::answer_footer('stringresponse');
797: }
798: } elsif ($target eq 'edit') {
799: $result.='</td></tr>'.&Apache::edit::end_table;
800: }
801: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
802: $target eq 'tex' || $target eq 'analyze') {
803: &Apache::lonxml::increment_counter($increment);
804: }
805: &Apache::response::end_response;
806: return $result;
807: }
808:
809: sub start_formularesponse {
810: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
811: my $result;
812: if ($target eq 'meta') {
813: &Apache::response::start_response($parstack,$safeeval);
814: $result=&Apache::response::meta_package_write('formularesponse');
815: &Apache::response::end_response();
816: } else {
817: $result.=&start_numericalresponse(@_);
818: }
819: return $result;
820: }
821:
822: sub end_formularesponse {
823: return end_numericalresponse(@_);
824: }
825:
826: 1;
827: __END__
828:
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