1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.154 2004/10/07 20:28:30 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: my $formatted=&format_number($answer,$format,$target,
107: $safeeval);
108: $answertxt.=$formatted.',';
109: }
110: chop $answertxt;
111: if ($target eq 'web') {
112: $answertxt.=" $unit ";
113: }
114: $Apache::inputtags::answertxt{$id}=$answertxt;
115: }
116: }
117: return $result;
118: }
119:
120: sub end_numericalresponse {
121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
122: my $increment=1;
123: my $result = '';
124: if (!$Apache::lonxml::default_homework_loaded) {
125: &Apache::lonxml::default_homework_load($safeeval);
126: }
127: my $tag;
128: if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
129: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
130: &Apache::response::setup_params($tag,$safeeval);
131: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
132: my $partid = $Apache::inputtags::part;
133: my $id = $Apache::inputtags::response['-1'];
134: if ($Apache::lonhomework::type eq 'exam' &&
135: $tag eq 'formularesponse') {
136: $increment=&Apache::response::scored_response($partid,$id);
137: } else {
138: my $response = &Apache::response::getresponse();
139: if ( $response =~ /[^\s]/) {
140: my $ad;
141: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
142: &Apache::lonxml::debug("submitted a $response<br>\n");
143: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
144:
145: if ($ENV{'form.submitted'} eq 'scantron') {
146: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
147: if (!$number_of_bubbles) { $number_of_bubbles=8; }
148: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
149: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
150: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
151: my @values=&make_numerical_bubbles($number_of_bubbles,$target,$answers[0],$formats[0],\@incorrect,$safeeval);
152: $response=$values[$response];
153: }
154: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
155: my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
156: $$args_ref{'response'}=$response;
157: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
158:
159: foreach my $arg ('type','tol','sig','format','unit','calc',
160: 'samples') {
161: $$args_ref{$arg}=
162: &Apache::lonxml::get_param($arg,$parstack,$safeeval);
163: }
164: foreach my $key (keys(%Apache::inputtags::params)) {
165: $$args_ref{$key}=$Apache::inputtags::params{$key};
166: }
167:
168: #no way to enter units, with radio buttons
169: if ($Apache::lonhomework::type eq 'exam' ||
170: lc($hideunit) eq "yes") {
171: delete($$args_ref{'unit'});
172: }
173: #sig fig don't make much sense either
174: if (($Apache::lonhomework::type eq 'exam' ||
175: $ENV{'form.submitted'} eq 'scantron') &&
176: $tag eq 'numericalresponse') {
177: delete($$args_ref{'sig'});
178: }
179:
180: if ($tag eq 'formularesponse') {
181: $$args_ref{'type'}='fml';
182: } elsif ($tag eq 'numericalresponse') {
183: $$args_ref{'type'}='float';
184: }
185: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
186: &Apache::lonxml::debug('answer is'.join(':',@answer));
187: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=@answer;
188:
189: ($result,my @msgs) =
190: &Apache::run::run("&caparesponse_check_list()",$safeeval);
191: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
192: my ($awards)=split(/:/,$result);
193: my (@awards) = split(/,/,$awards);
194: ($ad,my $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
195: &Apache::lonxml::debug('ad is'.$ad);
196: if ($ad eq 'SIG_FAIL') {
197: my ($sig_u,$sig_l)=
198: &get_sigrange($Apache::inputtags::params{'sig'});
199: $msg=join(':',$msg,$sig_l,$sig_u);
200: &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
201: $Apache::inputtags::params{'sig'});
202: }
203: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
204: &Apache::response::handle_previous(\%previous,$ad);
205: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
206: $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
207: $result='';
208: }
209: }
210: } elsif ($target eq 'web' || $target eq 'tex') {
211: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
212: $safeeval);
213: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
214: my $status = $Apache::inputtags::status['-1'];
215: if ($Apache::lonhomework::type eq 'exam') {
216: my $partid=$Apache::inputtags::part;
217: my $id=$Apache::inputtags::response[-1];
218: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
219: if ($Apache::inputtags::params{'numbubbles'}) {
220: $number_of_bubbles = $Apache::inputtags::params{'numbubbles'};
221: }
222: if (!$number_of_bubbles) { $number_of_bubbles=8; }
223:
224: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
225: $safeeval);
226: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
227: $safeeval);
228: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
229: my @bubble_values=&make_numerical_bubbles($number_of_bubbles,
230: $target,$answers[0],
231: $formats[0],\@incorrect,$safeeval);
232: my @alphabet=('A'..'Z');
233: if ($target eq 'web') {
234: if ($tag eq 'numericalresponse') {
235: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
236: $result.= '<table border="1"><tr>';
237: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
238: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
239: my $checked='';
240: if ($previous eq $bubble_values[$ind]) {
241: $checked=" checked='on' ";
242: }
243: $result.='<td><input type="radio" name="HWVAL_'.$id.
244: '" value="'.$bubble_values[$ind].'" '.$checked
245: .' /><b>'.$alphabet[$ind].'</b>: '.
246: $bubble_values[$ind].'</td>';
247: }
248: $result.='</tr></table>';
249: } elsif ($tag eq 'formularesponse') {
250: $result.= '<br /><br /><font color="red">
251: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
252: </textarea></font> <br /><br />';
253: }
254: } elsif ($target eq 'tex') {
255: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
256: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
257: }
258: if ($tag eq 'numericalresponse') {
259: my ($celllength,$number_of_tables,@table_range)=
260: &get_table_sizes($number_of_bubbles,\@bubble_values);
261: my $j=0;
262: my $cou=0;
263: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
264: for (my $i=0;$i<$number_of_tables;$i++) {
265: $result.='\vskip -1 mm \noindent \setlength{\tabcolsep}{2 mm}\begin{tabular}{';
266: for (my $ind=0;$ind<$table_range[$j];$ind++) {
267: $result.='p{3 mm}p{'.$celllength.' mm}';
268: }
269: $result.='}';
270: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
271: $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_values[$ind].'} ';
272: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
273: }
274: $cou += $table_range[$j];
275: $j++;
276: $result.='\\\\\end{tabular}\vskip 0 mm ';
277: }
278: $result.='\end{enumerate}';
279: } else {
280: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
281: my $repetition = &Apache::response::repetition();
282: $result.='\begin{enumerate}';
283: for (my $i=0;$i<$repetition;$i++) {
284: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
285: }
286: $increment=$repetition;
287: $result.= '\end{enumerate}';
288: }
289: }
290: }
291: } elsif ($target eq 'edit') {
292: $result.='</td></tr>'.&Apache::edit::end_table;
293: } elsif ($target eq 'answer' || $target eq 'analyze') {
294:
295: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
296: if ($target eq 'analyze') {
297: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
298: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
299: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
300: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
301: &Apache::response::check_if_computed($token,$parstack,
302: $safeeval,'answer');
303: }
304: if (scalar(@$tagstack)) {
305: &Apache::response::setup_params($tag,$safeeval);
306: }
307: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
308: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
309: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
310: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
311:
312: if ($target eq 'answer') {
313: $result.=&Apache::response::answer_header($tag);
314: }
315: for(my $i=0;$i<=$#answers;$i++) {
316: my $ans=$answers[$i];
317: my $fmt=$formats[0];
318: if (@formats && $#formats) {$fmt=$formats[$i];}
319: my ($high,$low);
320: if ($Apache::inputtags::params{'tol'}) {
321: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
322: }
323: my ($sighigh,$siglow);
324: if ($Apache::inputtags::params{'sig'}) {
325: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
326: }
327: if ($fmt && $tag eq 'numericalresponse') {
328: $fmt=~s/e/E/g;
329: $ans = &format_number($ans,$fmt,$target,$safeeval);
330: if ($high) {
331: $high=&format_number($high,$fmt,$target,$safeeval);
332: $low =&format_number($low,$fmt,$target,$safeeval);
333: }
334: }
335: if ($target eq 'answer') {
336: if ($high && $tag eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
337: if (defined($sighigh) && $tag eq 'numericalresponse') {
338: if ($ENV{'form.answer_output_mode'} eq 'tex') {
339: $ans.= " Sig $siglow - $sighigh";
340: } else {
341: $ans.= " Sig <i>$siglow - $sighigh</i>";
342: }
343: }
344: $result.=&Apache::response::answer_part($tag,$ans);
345: } elsif ($target eq 'analyze') {
346: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
347: if ($high) {
348: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
349: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
350: }
351: }
352: }
353: if (defined($unit) and ($unit ne '') and
354: $tag eq 'numericalresponse') {
355: if ($target eq 'answer') {
356: if ($ENV{'form.answer_output_mode'} eq 'tex') {
357: $result.=&Apache::response::answer_part($tag,
358: " Unit: $unit ");
359: } else {
360: $result.=&Apache::response::answer_part($tag,
361: "Unit: <b>$unit</b>");
362: }
363: } elsif ($target eq 'analyze') {
364: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
365: }
366: }
367: if ($tag eq 'formularesponse' && $target eq 'answer') {
368: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
369: $result.=&Apache::response::answer_part($tag,$samples);
370: }
371: if ($target eq 'answer') {
372: $result.=&Apache::response::answer_footer($tag);
373: }
374: }
375: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
376: $target eq 'tex' || $target eq 'analyze') {
377: &Apache::lonxml::increment_counter($increment);
378: }
379: &Apache::response::end_response;
380: return $result;
381: }
382:
383: sub get_table_sizes {
384: my ($number_of_bubbles,$rbubble_values)=@_;
385: my $scale=2; #mm for one digit
386: my $cell_width=0;
387: foreach my $member (@$rbubble_values) {
388: my $cell_width_real=0;
389: if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$\\times\s*10\^{(\+|-)?(\d+)}\$/) {
390: $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
391: } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
392: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
393: } elsif ($member=~/(\d*)\.(\d*)/) {
394: $cell_width_real=(length($1)+length($2)+3)*$scale;
395: } else {
396: $cell_width_real=(length($member)+1)*$scale*0.9;
397: }
398: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
399: }
400: $cell_width+=8;
401: my $textwidth;
402: if ($ENV{'form.textwidth'} ne '') {
403: $ENV{'form.textwidth'}=~/(\d*)\.?(\d*)/;
404: $textwidth=$1.'.'.$2;
405: } else {
406: $ENV{'textwidth'}=~/(\d+)\.?(\d*)/;
407: $textwidth=$1.'.'.$2;
408: }
409: my $bubbles_per_line=int($textwidth/$cell_width);
410: if ($bubbles_per_line > $number_of_bubbles) {
411: $bubbles_per_line=$number_of_bubbles;
412: }elsif (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;}
413: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
414: my @table_range = ();
415: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
416: if ($number_of_bubbles % $bubbles_per_line) {
417: $number_of_tables++;
418: push @table_range,($number_of_bubbles % $bubbles_per_line);
419: }
420: $cell_width-=8;
421: $cell_width=$cell_width*3/4;
422: return ($cell_width,$number_of_tables,@table_range);
423: }
424:
425: sub format_number {
426: my ($number,$format,$target,$safeeval)=@_;
427: my $ans;
428: if ($format eq '') {
429: #What is the number? (integer,decimal,floating point)
430: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
431: $format = '3e';
432: } elsif ($number=~/^(\d*)\.(\d*)$/) {
433: $format = '4f';
434: } elsif ($number=~/^(\d*)$/) {
435: $format = 'd';
436: }
437: }
438: $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
439: return $ans;
440: }
441:
442: sub make_numerical_bubbles {
443: my ($number_of_bubbles,$target,$answer,$format,$incorrect,$safeeval) =@_;
444: my @bubble_values = ();
445: &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
446: my @oldseed=&Math::Random::random_get_seed();
447: if (defined($incorrect) && ref($incorrect)) {
448: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
449: if (defined($$incorrect[0]) &&
450: scalar(@$incorrect)+1 >= $number_of_bubbles) {
451: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
452: &Apache::response::setrandomnumber();
453: my @rand_inc=&Math::Random::random_permutation(@$incorrect);
454: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
455: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
456: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
457: &Math::Random::random_set_seed(@oldseed);
458: if (defined($format) && $format ne '') {
459: foreach my $value (@bubble_values) {
460: $value=&format_number($value,$format,$target,$safeeval);
461: }
462: }
463: return @bubble_values;
464: }
465: if (defined($$incorrect[0]) &&
466: scalar(@$incorrect)+1 < $number_of_bubbles) {
467: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them.");
468: }
469: }
470: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
471: my @powers = (1..$number_of_bubbles);
472: &Apache::response::setrandomnumber();
473: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
474: my $power = $powers[$ind];
475: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
476: my $factor = $factors[$ind];
477: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
478: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
479: $bubble_values[$ind] = &format_number($bubble_values[$ind],
480: $format,$target,$safeeval);
481:
482: }
483: &Math::Random::random_set_seed(@oldseed);
484: return @bubble_values;
485: }
486:
487: sub get_tolrange {
488: my ($ans,$tol)=@_;
489: my ($high,$low);
490: if ($tol =~ /%$/) {
491: chop($tol);
492: my $change=$ans*($tol/100.0);
493: $high=$ans+$change;
494: $low=$ans-$change;
495: } else {
496: $high=$ans+$tol;
497: $low=$ans-$tol;
498: }
499: return ($high,$low);
500: }
501:
502: sub get_sigrange {
503: my ($sig)=@_;
504: &Apache::lonxml::debug("Got a sig of :$sig:");
505: my $courseid=$ENV{'request.course.id'};
506: if (lc($ENV{"course.$courseid.disablesigfigs"}) eq 'yes') {
507: return (15,0);
508: }
509: my $sig_lbound;
510: my $sig_ubound;
511: if ($sig eq '') {
512: $sig_lbound = 0; #SIG_LB_DEFAULT
513: $sig_ubound =15; #SIG_UB_DEFAULT
514: } else {
515: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
516: if (!defined($sig_lbound)) {
517: $sig_lbound = 0; #SIG_LB_DEFAULT
518: $sig_ubound =15; #SIG_UB_DEFAULT
519: }
520: if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
521: }
522: if (($sig_ubound<$sig_lbound) ||
523: ($sig_lbound > 15) ||
524: ($sig =~/(\+|-)/ ) ) {
525: my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
526: if ($ENV{'request.state'} eq 'construct') {
527: $errormsg.=
528: &Apache::loncommon::help_open_topic('Significant_Figures');
529: }
530: &Apache::lonxml::error($errormsg);
531: }
532: return ($sig_ubound,$sig_lbound);
533: }
534:
535: sub start_stringresponse {
536: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
537: my $result;
538: my $id = &Apache::response::start_response($parstack,$safeeval);
539: if ($target eq 'meta') {
540: $result=&Apache::response::meta_package_write('stringresponse');
541: } elsif ($target eq 'edit') {
542: $result.=&Apache::edit::tag_start($target,$token);
543: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
544: $result.=&Apache::edit::select_arg('Type:','type',
545: [['cs','Case Sensitive'],['ci','Case Insensitive'],
546: ['mc','Case Insensitive, Any Order'],
547: ['re','Regular Expression']],$token);
548: $result.=&Apache::edit::text_arg('String to display for answer:',
549: 'answerdisplay',$token);
550: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
551: } elsif ($target eq 'modified') {
552: my $constructtag;
553: $constructtag=&Apache::edit::get_new_args($token,$parstack,
554: $safeeval,'answer',
555: 'type','answerdisplay');
556: if ($constructtag) {
557: $result = &Apache::edit::rebuild_tag($token);
558: $result.=&Apache::edit::handle_insert();
559: }
560: } elsif ($target eq 'web') {
561: if ( &Apache::response::show_answer() ) {
562: my $answer=
563: &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
564: if (!defined $answer || $answer eq '') {
565: $answer=
566: &Apache::lonxml::get_param('answer',$parstack,$safeeval);
567: }
568: $Apache::inputtags::answertxt{$id}=$answer;
569: }
570: } elsif ($target eq 'answer' || $target eq 'grade') {
571: &Apache::response::reset_params();
572: }
573: return $result;
574: }
575:
576: sub end_stringresponse {
577: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
578: my $increment=1;
579: my $result = '';
580: my $part=$Apache::inputtags::part;
581: my $id=$Apache::inputtags::response[-1];
582: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
583: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
584: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
585: &Apache::lonxml::debug("current $answer ".$token->[2]);
586: if (!$Apache::lonxml::default_homework_loaded) {
587: &Apache::lonxml::default_homework_load($safeeval);
588: }
589: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
590: &Apache::response::setup_params('stringresponse',$safeeval);
591: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
592: if ($Apache::lonhomework::type eq 'exam' ||
593: $ENV{'form.submitted'} eq 'scantron') {
594: $increment=&Apache::response::scored_response($part,$id);
595: } else {
596: my $response = &Apache::response::getresponse();
597: if ( $response =~ /[^\s]/) {
598: my %previous = &Apache::response::check_for_previous($response,
599: $part,$id);
600: &Apache::lonxml::debug("submitted a $response<br>\n");
601: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
602: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
603: $response;
604: my ($ad,$msg);
605: if ($type eq 're' ) {
606: # if the RE wasn't in a var it likely got munged,
607: # thus grab it from the var directly
608: # my $testans=$token->[2]->{'answer'};
609: # if ($testans !~ m/^\s*\$/) {
610: # $answer=$token->[2]->{'answer'};
611: # }
612: ${$safeeval->varglob('LONCAPA::response')}=$response;
613: $result = &Apache::run::run('return $LONCAPA::response=~m'.$answer,$safeeval);
614: &Apache::lonxml::debug("current $response");
615: &Apache::lonxml::debug("current $answer");
616: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
617: } else {
618: my $args_ref=
619: \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
620:
621: $$args_ref{'response'}=$response;
622: &Apache::lonxml::debug("current $response");
623: $$args_ref{'type'}=
624: &Apache::lonxml::get_param('type',$parstack,$safeeval);
625: foreach my $key (keys(%Apache::inputtags::params)) {
626: $$args_ref{$key}=$Apache::inputtags::params{$key};
627: }
628: &Apache::lonxml::debug('answer is'.join(':',$answer));
629: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=($answer);
630: ($result, my @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
631: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
632: my ($awards)=split(/:/,$result);
633: my (@awards) = split(/,/,$awards);
634: ($ad,$msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
635: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
636: }
637: &Apache::response::handle_previous(\%previous,$ad);
638: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
639: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
640: }
641: }
642: } elsif ($target eq 'web' || $target eq 'tex') {
643: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
644: my $status = $Apache::inputtags::status['-1'];
645: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
646: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
647: $increment = &Apache::response::repetition();
648: $result.='\begin{enumerate}';
649: for (my $i=0;$i<$increment;$i++) {
650: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
651: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
652: }
653: $result.= '\end{enumerate}';
654: }
655: } elsif ($target eq 'answer' || $target eq 'analyze') {
656: if ($target eq 'analyze') {
657: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
658: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
659: &Apache::response::check_if_computed($token,$parstack,$safeeval,
660: 'answer');
661: }
662: &Apache::response::setup_params('stringresponse',$safeeval);
663: if ($target eq 'answer') {
664: $result.=&Apache::response::answer_header('stringresponse');
665: }
666: # foreach my $ans (@answers) {
667: if ($target eq 'answer') {
668: $result.=&Apache::response::answer_part('stringresponse',$answer);
669: } elsif ($target eq 'analyze') {
670: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
671: $answer);
672: }
673: # }
674: my $string='Case Insensitive';
675: if ($type eq 'mc') {
676: $string='Multiple Choice';
677: } elsif ($type eq 'cs') {
678: $string='Case Sensitive';
679: } elsif ($type eq 'ci') {
680: $string='Case Insensitive';
681: } elsif ($type eq 're') {
682: $string='Regular Expression';
683: }
684: if ($target eq 'answer') {
685: if ($ENV{'form.answer_output_mode'} eq 'tex') {
686: $result.=&Apache::response::answer_part('stringresponse',
687: "$string");
688: } else {
689: $result.=&Apache::response::answer_part('stringresponse',
690: "<b>$string</b>");
691: }
692: } elsif ($target eq 'analyze') {
693: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
694: $type);
695: }
696: if ($target eq 'answer') {
697: $result.=&Apache::response::answer_footer('stringresponse');
698: }
699: } elsif ($target eq 'edit') {
700: $result.='</td></tr>'.&Apache::edit::end_table;
701: }
702: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
703: $target eq 'tex' || $target eq 'analyze') {
704: &Apache::lonxml::increment_counter($increment);
705: }
706: &Apache::response::end_response;
707: return $result;
708: }
709:
710: sub start_formularesponse {
711: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
712: my $result;
713: if ($target eq 'meta') {
714: &Apache::response::start_response($parstack,$safeeval);
715: $result=&Apache::response::meta_package_write('formularesponse');
716: &Apache::response::end_response();
717: } else {
718: $result.=&start_numericalresponse(@_);
719: }
720: return $result;
721: }
722:
723: sub end_formularesponse {
724: return end_numericalresponse(@_);
725: }
726:
727: 1;
728: __END__
729:
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