1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.136 2004/02/26 21:13:54 sakharuk 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 $result;
42: if ($target eq 'edit') {
43: $result.=&Apache::edit::tag_start($target,$token);
44: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
45: if ($token->[1] eq 'numericalresponse') {
46: $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
47: $token);
48: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
49: &Apache::loncommon::help_open_topic('Physical_Units');
50: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
51: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
52: } elsif ($token->[1] eq 'formularesponse') {
53: $result.=&Apache::edit::text_arg('Sample Points:','samples',
54: $token,40).
55: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
56: }
57: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
58: } elsif ($target eq 'modified') {
59: my $constructtag;
60: if ($token->[1] eq 'numericalresponse') {
61: $constructtag=&Apache::edit::get_new_args($token,$parstack,
62: $safeeval,'answer',
63: 'incorrect','unit',
64: 'format');
65: } elsif ($token->[1] eq 'formularesponse') {
66: $constructtag=&Apache::edit::get_new_args($token,$parstack,
67: $safeeval,'answer',
68: 'samples');
69: }
70: if ($constructtag) {
71: $result = &Apache::edit::rebuild_tag($token);
72: $result.=&Apache::edit::handle_insert();
73: }
74: } elsif ($target eq 'meta') {
75: $result=&Apache::response::meta_package_write('numericalresponse');
76: } elsif ($target eq 'answer' || $target eq 'grade') {
77: &Apache::response::reset_params();
78: } elsif ($target eq 'web') {
79: my $partid = $Apache::inputtags::part;
80: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
81: &Apache::lonxml::debug("Got unit $hideunit for $partid $id");
82: #no way to enter units, with radio buttons
83: if (lc($hideunit) eq "yes") {
84: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
85: $safeeval);
86: if ($unit =~ /\S/) { $result.=" (in $unit) "; }
87: }
88: }
89: return $result;
90: }
91:
92: sub end_numericalresponse {
93: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
94: my $increment=1;
95: my $result = '';
96: if (!$Apache::lonxml::default_homework_loaded) {
97: &Apache::lonxml::default_homework_load($safeeval);
98: }
99: my $tag;
100: if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
101: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
102: &Apache::response::setup_params($tag);
103: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
104: my $partid = $Apache::inputtags::part;
105: my $id = $Apache::inputtags::response['-1'];
106: if ($Apache::lonhomework::type eq 'exam' &&
107: $tag eq 'formularesponse') {
108: $increment=&Apache::response::scored_response($partid,$id);
109: } else {
110: my $response = &Apache::response::getresponse();
111: if ( $response =~ /[^\s]/) {
112: my $ad;
113: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
114: &Apache::lonxml::debug("submitted a $response<br>\n");
115: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
116:
117: if ($ENV{'form.submitted'} eq 'scantron') {
118: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
119: if (!$number_of_bubbles) { $number_of_bubbles=8; }
120: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
121: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
122: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
123: my @values=&make_numerical_bubbles($number_of_bubbles,$target,$answers[0],$formats[0],\@incorrect);
124: $response=$values[$response];
125: } else {
126: $response =~ s/\\/\\\\/g;
127: $response =~ s/\'/\\\'/g;
128: }
129: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
130: &Apache::lonxml::debug("current $response");
131: my $expression="&caparesponse_check_list('".$response."','".
132: $$parstack[-1];
133: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
134:
135: foreach my $key (keys(%Apache::inputtags::params)) {
136: $expression.= ';my $'. #'
137: $key.'="'.$Apache::inputtags::params{$key}.'"';
138: }
139:
140: #no way to enter units, with radio buttons
141: if ($Apache::lonhomework::type eq 'exam' ||
142: lc($hideunit) eq "yes") {
143: $expression.=';my $unit=undef;';
144: }
145: #sig fig don't make much sense either
146: if (($Apache::lonhomework::type eq 'exam' ||
147: $ENV{'form.submitted'} eq 'scantron') &&
148: $tag eq 'numericalresponse') {
149: $expression.=';my $sig=undef;';
150: }
151:
152: if ($tag eq 'formularesponse') {
153: $expression.=';my $type="fml";';
154: } elsif ($tag eq 'numericalresponse') {
155: $expression.=';my $type="float";';
156: }
157: $expression.="');";
158: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
159: &Apache::lonxml::debug('answer is'.join(':',@answer));
160: @{$safeeval->varglob('CAPARESPONSE_CHECK_LIST_answer')}=@answer;
161:
162: $result = &Apache::run::run($expression,$safeeval);
163: my ($awards) = split /:/ , $result;
164: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
165: &Apache::lonxml::debug("$expression");
166: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
167: &Apache::response::handle_previous(\%previous,$ad);
168: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
169: $result='';
170: }
171: }
172: } elsif ($target eq 'web' || $target eq 'tex') {
173: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
174: $safeeval);
175: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
176: my $status = $Apache::inputtags::status['-1'];
177: if ( &Apache::response::show_answer() ) {
178: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
179: $safeeval);
180: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
181: $safeeval);
182: if ($target eq 'web') {
183: $result="<br />".&mt('The correct answer is')." ";
184: }
185: for (my $i=0; $i <= $#answers; $i++) {
186: my $answer=$answers[$i];
187: my $format;
188: if ($#formats > 0) {
189: $format=$formats[$i];
190: } else {
191: $format=$formats[0];
192: }
193: my $formatted;
194: if ((defined($format)) && ($format ne '')) {
195: $format=~s/e/E/g;
196: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
197: $formatted=sprintf('%.'.$format,$answer).',';
198: } else {
199: &Apache::lonxml::debug("no format answer :$answer:");
200: $formatted="$answer,";
201: }
202: if ($target eq 'tex') {
203: $formatted='';
204: #$formatted=&Apache::lonxml::latex_special_symbols($formatted);
205: }
206: $result.=$formatted;
207: }
208: chop $result;
209: if ($target eq 'web') {
210: $result.=" $unit.<br />";
211: }
212: }
213: if ($Apache::lonhomework::type eq 'exam') {
214: my $partid=$Apache::inputtags::part;
215: my $id=$Apache::inputtags::response[-1];
216: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
217: if ($Apache::inputtags::params{'numbubbles'}) {
218: $number_of_bubbles = $Apache::inputtags::params{'numbubbles'};
219: }
220: if (!$number_of_bubbles) { $number_of_bubbles=8; }
221:
222: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
223: $safeeval);
224: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
225: $safeeval);
226: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
227: my @bubble_values=&make_numerical_bubbles($number_of_bubbles,
228: $target,$answers[0],
229: $formats[0],\@incorrect);
230: my @alphabet=('A'..'Z');
231: if ($target eq 'web') {
232: if ($tag eq 'numericalresponse') {
233: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
234: $result.= '<table border="1"><tr>';
235: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
236: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
237: my $checked='';
238: if ($previous eq $bubble_values[$ind]) {
239: $checked=" checked='on' ";
240: }
241: $result.='<td><input type="radio" name="HWVAL_'.$id.
242: '" value="'.$bubble_values[$ind].'" '.$checked
243: .' /><b>'.$alphabet[$ind].'</b>: '.
244: $bubble_values[$ind].'</td>';
245: }
246: $result.='</tr></table>';
247: } elsif ($tag eq 'formularesponse') {
248: $result.= '<br /><br /><font color="red">
249: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
250: </textarea></font> <br /><br />';
251: }
252: } elsif ($target eq 'tex') {
253: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
254: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
255: }
256: if ($tag eq 'numericalresponse') {
257: my ($celllength,$number_of_tables,@table_range)=
258: &get_table_sizes($number_of_bubbles,\@bubble_values);
259: my $j=0;
260: my $cou=0;
261: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
262: for (my $i=0;$i<$number_of_tables;$i++) {
263: $result.='\vskip -1 mm \noindent \begin{tabular}{';
264: for (my $ind=0;$ind<$table_range[$j];$ind++) {
265: $result.='p{3 mm}p{'.$celllength.' mm}';
266: }
267: $result.='}';
268: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
269: $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_values[$ind].'} ';
270: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
271: }
272: $cou += $table_range[$j];
273: $j++;
274: $result.='\\\\\end{tabular}\vskip 0 mm ';
275: }
276: $result.='\end{enumerate}';
277: } else {
278: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
279: my $repetition = &Apache::response::repetition();
280: $result.='\begin{enumerate}';
281: for (my $i=0;$i<$repetition;$i++) {
282: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
283: }
284: $increment=$repetition;
285: $result.= '\end{enumerate}';
286: }
287: }
288: }
289: } elsif ($target eq 'edit') {
290: $result.='</td></tr>'.&Apache::edit::end_table;
291: } elsif ($target eq 'answer' || $target eq 'analyze') {
292:
293: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
294: if ($target eq 'analyze') {
295: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
296: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
297: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
298: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
299: }
300: if (scalar(@$tagstack)) {
301: &Apache::response::setup_params($tag);
302: }
303: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
304: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
305: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
306: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
307:
308: if ($target eq 'answer') {
309: $result.=&Apache::response::answer_header($tag);
310: }
311: for(my $i=0;$i<=$#answers;$i++) {
312: my $ans=$answers[$i];
313: my $fmt=$formats[0];
314: if (@formats && $#formats) {$fmt=$formats[$i];}
315: my ($high,$low);
316: if ($Apache::inputtags::params{'tol'}) {
317: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
318: }
319: my ($sighigh,$siglow);
320: if ($Apache::inputtags::params{'sig'}) {
321: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
322: }
323: if ($fmt && $tag eq 'numericalresponse') {
324: $fmt=~s/e/E/g;
325: $ans = sprintf('%.'.$fmt,$ans);
326: if ($high) {
327: $high=sprintf('%.'.$fmt,$high);
328: $low =sprintf('%.'.$fmt,$low);
329: }
330: }
331: if ($target eq 'answer') {
332: if ($high && $tag eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
333: if ($sighigh && $tag eq 'numericalresponse') {
334: if ($ENV{'form.answer_output_mode'} eq 'tex') {
335: $ans.= " Sig $siglow - $sighigh";
336: } else {
337: $ans.= " Sig <i>$siglow - $sighigh</i>";
338: }
339: }
340: $result.=&Apache::response::answer_part($tag,$ans);
341: } elsif ($target eq 'analyze') {
342: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
343: if ($high) {
344: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
345: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
346: }
347: }
348: }
349: if (defined($unit) and ($unit ne '') and
350: $tag eq 'numericalresponse') {
351: if ($target eq 'answer') {
352: if ($ENV{'form.answer_output_mode'} eq 'tex') {
353: $result.=&Apache::response::answer_part($tag,
354: " Unit: $unit ");
355: } else {
356: $result.=&Apache::response::answer_part($tag,
357: "Unit: <b>$unit</b>");
358: }
359: } elsif ($target eq 'analyze') {
360: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
361: }
362: }
363: if ($tag eq 'formularesponse' && $target eq 'answer') {
364: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
365: $result.=&Apache::response::answer_part($tag,$samples);
366: }
367: if ($target eq 'answer') {
368: $result.=&Apache::response::answer_footer($tag);
369: }
370: }
371: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
372: $target eq 'tex' || $target eq 'analyze') {
373: &Apache::lonxml::increment_counter($increment);
374: }
375: &Apache::response::end_response;
376: return $result;
377: }
378:
379: sub get_table_sizes {
380: my ($number_of_bubbles,$rbubble_values)=@_;
381: my $scale=2; #mm for one digit
382: my $cell_width=0;
383: foreach my $member (@$rbubble_values) {
384: my $cell_width_real=0;
385: if ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
386: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
387: } elsif ($member=~/(\d*)\.(\d*)/) {
388: $cell_width_real=(length($1)+length($2)+3)*$scale;
389: } else {
390: $cell_width_real=(length($member)+1)*$scale;
391: }
392: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
393: }
394: $cell_width+=8;
395: my $textwidth;
396: if ($ENV{'form.textwidth'} ne '') {
397: $ENV{'form.textwidth'}=~/(\d*)\.?(\d*)/;
398: $textwidth=$1.'.'.$2;
399: } else {
400: $ENV{'textwidth'}=~/(\d+)\.?(\d*)/;
401: $textwidth=$1.'.'.$2;
402: }
403: my $bubbles_per_line=int($textwidth/$cell_width);
404: if (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;}
405: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
406: my @table_range = ();
407: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
408: if ($number_of_bubbles % $bubbles_per_line) {
409: $number_of_tables++;
410: push @table_range,($number_of_bubbles % $bubbles_per_line);
411: }
412: $cell_width-=8;
413: $cell_width=$cell_width*3/4;
414: return ($cell_width,$number_of_tables,@table_range);
415: }
416:
417: sub format_number {
418: my ($number,$format,$target)=@_;
419: my $ans;
420: if ($format ne '') {
421: $format=~s/e/E/g;
422: $ans = sprintf('%.'.$format,$number);
423: } else {
424: my $format = '';
425: #What is the number? (integer,decimal,floating point)
426: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
427: $format = '3e';
428: } elsif ($number=~/^(\d*)\.(\d*)$/) {
429: $format = '4f';
430: } elsif ($number=~/^(\d*)$/) {
431: $format = 'd';
432: }
433: $ans = sprintf('%.'.$format,$number);
434: }
435: if ($target eq 'tex') {
436: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
437: my $number = $1;
438: my $power = $2;
439: $power=~s/^\+//;
440: $power=~s/^(-?)0+(\d+)/$1$2/;
441: $ans=$number.'$\times 10^{'.$power.'}$'; #'stupidemacs
442: }
443: }
444: return $ans;
445: }
446:
447: sub make_numerical_bubbles {
448: my ($number_of_bubbles,$target,$answer,$format,$incorrect) =@_;
449: my @bubble_values = ();
450: &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
451: my @oldseed=&Math::Random::random_get_seed();
452: if (defined($incorrect) && ref($incorrect)) {
453: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
454: if (defined($$incorrect[0]) &&
455: scalar(@$incorrect)+1 >= $number_of_bubbles) {
456: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
457: &Apache::response::setrandomnumber();
458: my @rand_inc=&Math::Random::random_permutation(@$incorrect);
459: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
460: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
461: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
462: &Math::Random::random_set_seed(@oldseed);
463: if (defined($format) && $format ne '') {
464: for(my $i=0;$i<=$#bubble_values;$i++) {
465: $bubble_values[$i]=&format_number($bubble_values[$i],$format,$target);
466: }
467: }
468: return @bubble_values;
469: }
470: if (defined($$incorrect[0]) &&
471: scalar(@$incorrect)+1 < $number_of_bubbles) {
472: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them.");
473: }
474: }
475: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
476: my @powers = (1..$number_of_bubbles);
477: &Apache::response::setrandomnumber();
478: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
479: my $power = $powers[$ind];
480: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
481: my $factor = $factors[$ind];
482: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
483: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
484: $bubble_values[$ind] = &format_number($bubble_values[$ind],
485: $format,$target);
486:
487: }
488: &Math::Random::random_set_seed(@oldseed);
489: return @bubble_values;
490: }
491:
492: sub get_tolrange {
493: my ($ans,$tol)=@_;
494: my ($high,$low);
495: if ($tol =~ /%$/) {
496: chop($tol);
497: my $change=$ans*($tol/100.0);
498: $high=$ans+$change;
499: $low=$ans-$change;
500: } else {
501: $high=$ans+$tol;
502: $low=$ans-$tol;
503: }
504: return ($high,$low);
505: }
506:
507: sub get_sigrange {
508: my ($sig)=@_;
509: &Apache::lonxml::debug("Got a sig of :$sig:");
510: my $sig_lbound;
511: my $sig_ubound;
512: if ($sig eq '') {
513: $sig_lbound = 0; #SIG_LB_DEFAULT
514: $sig_ubound =15; #SIG_UB_DEFAULT
515: } else {
516: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
517: if (!$sig_lbound) {
518: $sig_lbound = 0; #SIG_LB_DEFAULT
519: $sig_ubound =15; #SIG_UB_DEFAULT
520: }
521: if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
522: }
523: if (($sig_ubound<$sig_lbound) ||
524: ($sig_lbound > 15) ||
525: ($sig =~/(\+|-)/ ) ) {
526: my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
527: if ($ENV{'request.state'} eq 'construct') {
528: $errormsg.=
529: &Apache::loncommon::help_open_topic('Significant_Figures');
530: }
531: &Apache::lonxml::error($errormsg);
532: }
533: return ($sig_ubound,$sig_lbound);
534: }
535:
536: sub start_stringresponse {
537: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
538: my $result;
539: my $id = &Apache::response::start_response($parstack,$safeeval);
540: if ($target eq 'meta') {
541: &Apache::response::start_response($parstack,$safeeval);
542: $result=&Apache::response::meta_package_write('stringresponse');
543: &Apache::response::end_response();
544: } elsif ($target eq 'edit') {
545: $result.=&Apache::edit::tag_start($target,$token);
546: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
547: $result.=&Apache::edit::select_arg('Type:','type',
548: [['cs','Case Sensitive'],['ci','Case Insensitive'],
549: ['mc','Case Insensitive, Any Order'],
550: ['re','Regular Expression']],$token);
551: $result.=&Apache::edit::checked_arg('Answer Display:','answerdisplay',
552: [['inline','Inline']],$token);
553: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
554: } elsif ($target eq 'modified') {
555: my $constructtag;
556: $constructtag=&Apache::edit::get_new_args($token,$parstack,
557: $safeeval,'answer',
558: 'type','answerdisplay');
559: if ($constructtag) {
560: $result = &Apache::edit::rebuild_tag($token);
561: $result.=&Apache::edit::handle_insert();
562: }
563: } elsif ($target eq 'answer' || $target eq 'grade') {
564: &Apache::response::reset_params();
565: }
566: return $result;
567: }
568:
569: sub end_stringresponse {
570: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
571: my $increment=1;
572: my $result = '';
573: my $part=$Apache::inputtags::part;
574: my $id=$Apache::inputtags::response[-1];
575: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
576: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
577: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
578: &Apache::lonxml::debug("current $answer ".$token->[2]);
579: if (!$Apache::lonxml::default_homework_loaded) {
580: &Apache::lonxml::default_homework_load($safeeval);
581: }
582: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
583: &Apache::response::setup_params('stringresponse');
584: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
585: if ($Apache::lonhomework::type eq 'exam' ||
586: $ENV{'form.submitted'} eq 'scantron') {
587: $increment=&Apache::response::scored_response($part,$id);
588: } else {
589: my $response = &Apache::response::getresponse();
590: if ( $response =~ /[^\s]/) {
591: my %previous = &Apache::response::check_for_previous($response,
592: $part,$id);
593: &Apache::lonxml::debug("submitted a $response<br>\n");
594: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
595:
596: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
597: $response;
598: my $ad;
599: if ($type eq 're' ) {
600: # if the RE wasn't in a var it likely got munged,
601: # thus grab it from the var directly
602: # my $testans=$token->[2]->{'answer'};
603: # if ($testans !~ m/^\s*\$/) {
604: # $answer=$token->[2]->{'answer'};
605: # }
606: ${$safeeval->varglob('LONCAPA_INTERNAL_response')}=
607: $response;
608: $result = &Apache::run::run('return $LONCAPA_INTERNAL_response=~m'.$answer,$safeeval);
609: &Apache::lonxml::debug("current $response");
610: &Apache::lonxml::debug("current $answer");
611: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
612: } else {
613: $response =~ s/\\/\\\\/g;
614: $response =~ s/\'/\\\'/g;
615: &Apache::lonxml::debug("current $response");
616: my $expression="&caparesponse_check_list('".$response."','".
617: $$parstack[-1];
618: foreach my $key (keys(%Apache::inputtags::params)) {
619: $expression.= ';my $'. #'
620: $key.'="'.$Apache::inputtags::params{$key}.'"';
621: }
622: $expression.="');";
623: &Apache::lonxml::debug('answer is'.join(':',$answer));
624: @{$safeeval->varglob('CAPARESPONSE_CHECK_LIST_answer')}=($answer);
625: $result = &Apache::run::run($expression,$safeeval);
626: my ($awards) = split /:/ , $result;
627: ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
628: &Apache::lonxml::debug("$expression");
629: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
630: }
631: &Apache::response::handle_previous(\%previous,$ad);
632: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
633: }
634: }
635: } elsif ($target eq 'web' || $target eq 'tex') {
636: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
637: my $status = $Apache::inputtags::status['-1'];
638: if ( &Apache::response::show_answer() ) {
639: if ($target eq 'web') {
640: $result=($answerdisplay eq 'inline'?'':"<br />".&mt('The correct answer is')." ")
641: .$answer;
642: # join(', ',@answers).".<br />";
643: }
644: }
645: if ($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.$id.type"} = 'stringresponse';
659: }
660: &Apache::response::setup_params('stringresponse');
661: if ($target eq 'answer') {
662: $result.=&Apache::response::answer_header('stringresponse');
663: }
664: # foreach my $ans (@answers) {
665: if ($target eq 'answer') {
666: $result.=&Apache::response::answer_part('stringresponse',$answer);
667: } elsif ($target eq 'analyze') {
668: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
669: $answer);
670: }
671: # }
672: my $string='Case Insensitive';
673: if ($type eq 'mc') {
674: $string='Multiple Choice';
675: } elsif ($type eq 'cs') {
676: $string='Case Sensitive';
677: } elsif ($type eq 'ci') {
678: $string='Case Insensitive';
679: } elsif ($type eq 're') {
680: $string='Regular Expression';
681: }
682: if ($target eq 'answer') {
683: if ($ENV{'form.answer_output_mode'} eq 'tex') {
684: $result.=&Apache::response::answer_part('stringresponse',
685: "$string");
686: } else {
687: $result.=&Apache::response::answer_part('stringresponse',
688: "<b>$string</b>");
689: }
690: } elsif ($target eq 'analyze') {
691: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
692: $type);
693: }
694: if ($target eq 'answer') {
695: $result.=&Apache::response::answer_footer('stringresponse');
696: }
697: } elsif ($target eq 'edit') {
698: $result.='</td></tr>'.&Apache::edit::end_table;
699: }
700: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
701: $target eq 'tex' || $target eq 'analyze') {
702: &Apache::lonxml::increment_counter($increment);
703: }
704: &Apache::response::end_response;
705: return $result;
706: }
707:
708: sub start_formularesponse {
709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
710: my $result;
711: if ($target eq 'meta') {
712: &Apache::response::start_response($parstack,$safeeval);
713: $result=&Apache::response::meta_package_write('formularesponse');
714: &Apache::response::end_response();
715: } else {
716: $result.=&start_numericalresponse(@_);
717: }
718: return $result;
719: }
720:
721: sub end_formularesponse {
722: return end_numericalresponse(@_);
723: }
724:
725: 1;
726: __END__
727:
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