1: # The LearningOnline Network with CAPA
2: # caparesponse definition
3: #
4: # $Id: caparesponse.pm,v 1.148 2004/06/10 21:19:59 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: $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
50: &Apache::loncommon::help_open_topic('Physical_Units');
51: $result.=&Apache::edit::text_arg('Format:','format',$token,4).
52: &Apache::loncommon::help_open_topic('Numerical_Response_Format');
53: } elsif ($token->[1] eq 'formularesponse') {
54: $result.=&Apache::edit::text_arg('Sample Points:','samples',
55: $token,40).
56: &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
57: }
58: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
59: } elsif ($target eq 'modified') {
60: my $constructtag;
61: if ($token->[1] eq 'numericalresponse') {
62: $constructtag=&Apache::edit::get_new_args($token,$parstack,
63: $safeeval,'answer',
64: 'incorrect','unit',
65: 'format');
66: } elsif ($token->[1] eq 'formularesponse') {
67: $constructtag=&Apache::edit::get_new_args($token,$parstack,
68: $safeeval,'answer',
69: 'samples');
70: }
71: if ($constructtag) {
72: $result = &Apache::edit::rebuild_tag($token);
73: $result.=&Apache::edit::handle_insert();
74: }
75: } elsif ($target eq 'meta') {
76: $result=&Apache::response::meta_package_write('numericalresponse');
77: } elsif ($target eq 'answer' || $target eq 'grade') {
78: &Apache::response::reset_params();
79: } elsif ($target eq 'web') {
80: my $partid = $Apache::inputtags::part;
81: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
82: &Apache::lonxml::debug("Got unit $hideunit for $partid $id");
83: #no way to enter units, with radio buttons
84: if (lc($hideunit) eq "yes") {
85: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
86: $safeeval);
87: if ($unit =~ /\S/) { $result.=" (in $unit) "; }
88: }
89: if ( &Apache::response::show_answer() ) {
90: my $answertxt;
91: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
92: $safeeval);
93: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
94: $safeeval);
95: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
96: $safeeval);
97: for (my $i=0; $i <= $#answers; $i++) {
98: my $answer=$answers[$i];
99: my $format;
100: if ($#formats > 0) {
101: $format=$formats[$i];
102: } else {
103: $format=$formats[0];
104: }
105: my $formatted;
106: if ((defined($format)) && ($format ne '')) {
107: $format=~s/e/E/g;
108: &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
109: $formatted=sprintf('%.'.$format,$answer).',';
110: } else {
111: &Apache::lonxml::debug("no format answer :$answer:");
112: $formatted="$answer,";
113: }
114: $answertxt.=$formatted;
115: }
116: chop $answertxt;
117: if ($target eq 'web') {
118: $answertxt.=" $unit ";
119: }
120: $Apache::inputtags::answertxt{$id}=$answertxt;
121: }
122: }
123: return $result;
124: }
125:
126: sub end_numericalresponse {
127: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
128: my $increment=1;
129: my $result = '';
130: if (!$Apache::lonxml::default_homework_loaded) {
131: &Apache::lonxml::default_homework_load($safeeval);
132: }
133: my $tag;
134: if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
135: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
136: &Apache::response::setup_params($tag,$safeeval);
137: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
138: my $partid = $Apache::inputtags::part;
139: my $id = $Apache::inputtags::response['-1'];
140: if ($Apache::lonhomework::type eq 'exam' &&
141: $tag eq 'formularesponse') {
142: $increment=&Apache::response::scored_response($partid,$id);
143: } else {
144: my $response = &Apache::response::getresponse();
145: if ( $response =~ /[^\s]/) {
146: my $ad;
147: my %previous = &Apache::response::check_for_previous($response,$partid,$id);
148: &Apache::lonxml::debug("submitted a $response<br>\n");
149: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
150:
151: if ($ENV{'form.submitted'} eq 'scantron') {
152: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
153: if (!$number_of_bubbles) { $number_of_bubbles=8; }
154: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
155: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
156: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
157: my @values=&make_numerical_bubbles($number_of_bubbles,$target,$answers[0],$formats[0],\@incorrect);
158: $response=$values[$response];
159: }
160: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
161: my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
162: $$args_ref{'response'}=$response;
163: my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
164:
165: foreach my $arg ('type','tol','sig','ans_fmt','unit','calc',
166: 'samples') {
167: $$args_ref{$arg}=
168: &Apache::lonxml::get_param($arg,$parstack,$safeeval);
169: }
170: foreach my $key (keys(%Apache::inputtags::params)) {
171: $$args_ref{$key}=$Apache::inputtags::params{$key};
172: }
173:
174: #no way to enter units, with radio buttons
175: if ($Apache::lonhomework::type eq 'exam' ||
176: lc($hideunit) eq "yes") {
177: delete($$args_ref{'unit'});
178: }
179: #sig fig don't make much sense either
180: if (($Apache::lonhomework::type eq 'exam' ||
181: $ENV{'form.submitted'} eq 'scantron') &&
182: $tag eq 'numericalresponse') {
183: delete($$args_ref{'sig'});
184: }
185:
186: if ($tag eq 'formularesponse') {
187: $$args_ref{'type'}='fml';
188: } elsif ($tag eq 'numericalresponse') {
189: $$args_ref{'type'}='float';
190: }
191: my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
192: &Apache::lonxml::debug('answer is'.join(':',@answer));
193: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=@answer;
194:
195: ($result,my @msgs) =
196: &Apache::run::run("&caparesponse_check_list()",$safeeval);
197: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
198: my ($awards)=split(/:/,$result);
199: my (@awards) = split(/,/,$awards);
200: ($ad,my $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
201: &Apache::lonxml::debug('ad is'.$ad);
202: if ($ad eq 'SIG_FAIL') {
203: my ($sig_u,$sig_l)=
204: &get_sigrange($Apache::inputtags::params{'sig'});
205: $msg=join(':',$msg,$sig_l,$sig_u);
206: &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
207: $Apache::inputtags::params{'sig'});
208: }
209: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
210: &Apache::response::handle_previous(\%previous,$ad);
211: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
212: $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
213: $result='';
214: }
215: }
216: } elsif ($target eq 'web' || $target eq 'tex') {
217: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
218: $safeeval);
219: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
220: my $status = $Apache::inputtags::status['-1'];
221: if ($Apache::lonhomework::type eq 'exam') {
222: my $partid=$Apache::inputtags::part;
223: my $id=$Apache::inputtags::response[-1];
224: my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
225: if ($Apache::inputtags::params{'numbubbles'}) {
226: $number_of_bubbles = $Apache::inputtags::params{'numbubbles'};
227: }
228: if (!$number_of_bubbles) { $number_of_bubbles=8; }
229:
230: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
231: $safeeval);
232: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
233: $safeeval);
234: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
235: my @bubble_values=&make_numerical_bubbles($number_of_bubbles,
236: $target,$answers[0],
237: $formats[0],\@incorrect);
238: my @alphabet=('A'..'Z');
239: if ($target eq 'web') {
240: if ($tag eq 'numericalresponse') {
241: if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
242: $result.= '<table border="1"><tr>';
243: my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
244: for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
245: my $checked='';
246: if ($previous eq $bubble_values[$ind]) {
247: $checked=" checked='on' ";
248: }
249: $result.='<td><input type="radio" name="HWVAL_'.$id.
250: '" value="'.$bubble_values[$ind].'" '.$checked
251: .' /><b>'.$alphabet[$ind].'</b>: '.
252: $bubble_values[$ind].'</td>';
253: }
254: $result.='</tr></table>';
255: } elsif ($tag eq 'formularesponse') {
256: $result.= '<br /><br /><font color="red">
257: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
258: </textarea></font> <br /><br />';
259: }
260: } elsif ($target eq 'tex') {
261: if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
262: $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
263: }
264: if ($tag eq 'numericalresponse') {
265: my ($celllength,$number_of_tables,@table_range)=
266: &get_table_sizes($number_of_bubbles,\@bubble_values);
267: my $j=0;
268: my $cou=0;
269: $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
270: for (my $i=0;$i<$number_of_tables;$i++) {
271: $result.='\vskip -1 mm \noindent \setlength{\tabcolsep}{2 mm}\begin{tabular}{';
272: for (my $ind=0;$ind<$table_range[$j];$ind++) {
273: $result.='p{3 mm}p{'.$celllength.' mm}';
274: }
275: $result.='}';
276: for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
277: $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_values[$ind].'} ';
278: if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
279: }
280: $cou += $table_range[$j];
281: $j++;
282: $result.='\\\\\end{tabular}\vskip 0 mm ';
283: }
284: $result.='\end{enumerate}';
285: } else {
286: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
287: my $repetition = &Apache::response::repetition();
288: $result.='\begin{enumerate}';
289: for (my $i=0;$i<$repetition;$i++) {
290: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
291: }
292: $increment=$repetition;
293: $result.= '\end{enumerate}';
294: }
295: }
296: }
297: } elsif ($target eq 'edit') {
298: $result.='</td></tr>'.&Apache::edit::end_table;
299: } elsif ($target eq 'answer' || $target eq 'analyze') {
300:
301: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
302: if ($target eq 'analyze') {
303: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
304: $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
305: my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
306: push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
307: }
308: if (scalar(@$tagstack)) {
309: &Apache::response::setup_params($tag,$safeeval);
310: }
311: my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
312: my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
313: my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
314: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
315:
316: if ($target eq 'answer') {
317: $result.=&Apache::response::answer_header($tag);
318: }
319: for(my $i=0;$i<=$#answers;$i++) {
320: my $ans=$answers[$i];
321: my $fmt=$formats[0];
322: if (@formats && $#formats) {$fmt=$formats[$i];}
323: my ($high,$low);
324: if ($Apache::inputtags::params{'tol'}) {
325: ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
326: }
327: my ($sighigh,$siglow);
328: if ($Apache::inputtags::params{'sig'}) {
329: ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
330: }
331: if ($fmt && $tag eq 'numericalresponse') {
332: $fmt=~s/e/E/g;
333: $ans = sprintf('%.'.$fmt,$ans);
334: if ($high) {
335: $high=sprintf('%.'.$fmt,$high);
336: $low =sprintf('%.'.$fmt,$low);
337: }
338: }
339: if ($target eq 'answer') {
340: if ($high && $tag eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
341: if (defined($sighigh) && $tag eq 'numericalresponse') {
342: if ($ENV{'form.answer_output_mode'} eq 'tex') {
343: $ans.= " Sig $siglow - $sighigh";
344: } else {
345: $ans.= " Sig <i>$siglow - $sighigh</i>";
346: }
347: }
348: $result.=&Apache::response::answer_part($tag,$ans);
349: } elsif ($target eq 'analyze') {
350: push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
351: if ($high) {
352: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
353: push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
354: }
355: }
356: }
357: if (defined($unit) and ($unit ne '') and
358: $tag eq 'numericalresponse') {
359: if ($target eq 'answer') {
360: if ($ENV{'form.answer_output_mode'} eq 'tex') {
361: $result.=&Apache::response::answer_part($tag,
362: " Unit: $unit ");
363: } else {
364: $result.=&Apache::response::answer_part($tag,
365: "Unit: <b>$unit</b>");
366: }
367: } elsif ($target eq 'analyze') {
368: push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
369: }
370: }
371: if ($tag eq 'formularesponse' && $target eq 'answer') {
372: my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
373: $result.=&Apache::response::answer_part($tag,$samples);
374: }
375: if ($target eq 'answer') {
376: $result.=&Apache::response::answer_footer($tag);
377: }
378: }
379: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
380: $target eq 'tex' || $target eq 'analyze') {
381: &Apache::lonxml::increment_counter($increment);
382: }
383: &Apache::response::end_response;
384: return $result;
385: }
386:
387: sub get_table_sizes {
388: my ($number_of_bubbles,$rbubble_values)=@_;
389: my $scale=2; #mm for one digit
390: my $cell_width=0;
391: foreach my $member (@$rbubble_values) {
392: my $cell_width_real=0;
393: if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$\\times\s*10\^{(\+|-)?(\d+)}\$/) {
394: $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
395: } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
396: $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
397: } elsif ($member=~/(\d*)\.(\d*)/) {
398: $cell_width_real=(length($1)+length($2)+3)*$scale;
399: } else {
400: $cell_width_real=(length($member)+1)*$scale*0.9;
401: }
402: if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
403: }
404: $cell_width+=8;
405: my $textwidth;
406: if ($ENV{'form.textwidth'} ne '') {
407: $ENV{'form.textwidth'}=~/(\d*)\.?(\d*)/;
408: $textwidth=$1.'.'.$2;
409: } else {
410: $ENV{'textwidth'}=~/(\d+)\.?(\d*)/;
411: $textwidth=$1.'.'.$2;
412: }
413: my $bubbles_per_line=int($textwidth/$cell_width);
414: if (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;}
415: my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
416: my @table_range = ();
417: for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
418: if ($number_of_bubbles % $bubbles_per_line) {
419: $number_of_tables++;
420: push @table_range,($number_of_bubbles % $bubbles_per_line);
421: }
422: $cell_width-=8;
423: $cell_width=$cell_width*3/4;
424: return ($cell_width,$number_of_tables,@table_range);
425: }
426:
427: sub format_number {
428: my ($number,$format,$target)=@_;
429: my $ans;
430: if ($format ne '') {
431: $format=~s/e/E/g;
432: $ans = sprintf('%.'.$format,$number);
433: } else {
434: my $format = '';
435: #What is the number? (integer,decimal,floating point)
436: if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
437: $format = '3e';
438: } elsif ($number=~/^(\d*)\.(\d*)$/) {
439: $format = '4f';
440: } elsif ($number=~/^(\d*)$/) {
441: $format = 'd';
442: }
443: $ans = sprintf('%.'.$format,$number);
444: }
445: if ($target eq 'tex') {
446: if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
447: my $number = $1;
448: my $power = $2;
449: $power=~s/^\+//;
450: $power=~s/^(-?)0+(\d+)/$1$2/;
451: $ans=$number.'$\times 10^{'.$power.'}$'; #'stupidemacs
452: }
453: }
454: return $ans;
455: }
456:
457: sub make_numerical_bubbles {
458: my ($number_of_bubbles,$target,$answer,$format,$incorrect) =@_;
459: my @bubble_values = ();
460: &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
461: my @oldseed=&Math::Random::random_get_seed();
462: if (defined($incorrect) && ref($incorrect)) {
463: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
464: if (defined($$incorrect[0]) &&
465: scalar(@$incorrect)+1 >= $number_of_bubbles) {
466: &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
467: &Apache::response::setrandomnumber();
468: my @rand_inc=&Math::Random::random_permutation(@$incorrect);
469: @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
470: @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
471: &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
472: &Math::Random::random_set_seed(@oldseed);
473: if (defined($format) && $format ne '') {
474: foreach my $value (@bubble_values) {
475: $value=&format_number($value,$format,$target);
476: }
477: }
478: return @bubble_values;
479: }
480: if (defined($$incorrect[0]) &&
481: scalar(@$incorrect)+1 < $number_of_bubbles) {
482: &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them.");
483: }
484: }
485: my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
486: my @powers = (1..$number_of_bubbles);
487: &Apache::response::setrandomnumber();
488: my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
489: my $power = $powers[$ind];
490: $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
491: my $factor = $factors[$ind];
492: for ($ind=0;$ind<$number_of_bubbles;$ind++) {
493: $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
494: $bubble_values[$ind] = &format_number($bubble_values[$ind],
495: $format,$target);
496:
497: }
498: &Math::Random::random_set_seed(@oldseed);
499: return @bubble_values;
500: }
501:
502: sub get_tolrange {
503: my ($ans,$tol)=@_;
504: my ($high,$low);
505: if ($tol =~ /%$/) {
506: chop($tol);
507: my $change=$ans*($tol/100.0);
508: $high=$ans+$change;
509: $low=$ans-$change;
510: } else {
511: $high=$ans+$tol;
512: $low=$ans-$tol;
513: }
514: return ($high,$low);
515: }
516:
517: sub get_sigrange {
518: my ($sig)=@_;
519: &Apache::lonxml::debug("Got a sig of :$sig:");
520: my $courseid=$ENV{'request.course.id'};
521: if (lc($ENV{"course.$courseid.disablesigfigs"}) eq 'yes') {
522: return (15,0);
523: }
524: my $sig_lbound;
525: my $sig_ubound;
526: if ($sig eq '') {
527: $sig_lbound = 0; #SIG_LB_DEFAULT
528: $sig_ubound =15; #SIG_UB_DEFAULT
529: } else {
530: ($sig_lbound,$sig_ubound) = split(/,/,$sig);
531: if (!defined($sig_lbound)) {
532: $sig_lbound = 0; #SIG_LB_DEFAULT
533: $sig_ubound =15; #SIG_UB_DEFAULT
534: }
535: if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
536: }
537: if (($sig_ubound<$sig_lbound) ||
538: ($sig_lbound > 15) ||
539: ($sig =~/(\+|-)/ ) ) {
540: my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
541: if ($ENV{'request.state'} eq 'construct') {
542: $errormsg.=
543: &Apache::loncommon::help_open_topic('Significant_Figures');
544: }
545: &Apache::lonxml::error($errormsg);
546: }
547: return ($sig_ubound,$sig_lbound);
548: }
549:
550: sub start_stringresponse {
551: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
552: my $result;
553: my $id = &Apache::response::start_response($parstack,$safeeval);
554: if ($target eq 'meta') {
555: &Apache::response::start_response($parstack,$safeeval);
556: $result=&Apache::response::meta_package_write('stringresponse');
557: &Apache::response::end_response();
558: } elsif ($target eq 'edit') {
559: $result.=&Apache::edit::tag_start($target,$token);
560: $result.=&Apache::edit::text_arg('Answer:','answer',$token);
561: $result.=&Apache::edit::select_arg('Type:','type',
562: [['cs','Case Sensitive'],['ci','Case Insensitive'],
563: ['mc','Case Insensitive, Any Order'],
564: ['re','Regular Expression']],$token);
565: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
566: } elsif ($target eq 'modified') {
567: my $constructtag;
568: $constructtag=&Apache::edit::get_new_args($token,$parstack,
569: $safeeval,'answer',
570: 'type','answerdisplay');
571: if ($constructtag) {
572: $result = &Apache::edit::rebuild_tag($token);
573: $result.=&Apache::edit::handle_insert();
574: }
575: } elsif ($target eq 'web') {
576: if ( &Apache::response::show_answer() ) {
577: $Apache::inputtags::answertxt{$id}=
578: &Apache::lonxml::get_param('answer',$parstack,$safeeval);
579: }
580: } elsif ($target eq 'answer' || $target eq 'grade') {
581: &Apache::response::reset_params();
582: }
583: return $result;
584: }
585:
586: sub end_stringresponse {
587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
588: my $increment=1;
589: my $result = '';
590: my $part=$Apache::inputtags::part;
591: my $id=$Apache::inputtags::response[-1];
592: my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
593: my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
594: my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
595: &Apache::lonxml::debug("current $answer ".$token->[2]);
596: if (!$Apache::lonxml::default_homework_loaded) {
597: &Apache::lonxml::default_homework_load($safeeval);
598: }
599: if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
600: &Apache::response::setup_params('stringresponse',$safeeval);
601: $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
602: if ($Apache::lonhomework::type eq 'exam' ||
603: $ENV{'form.submitted'} eq 'scantron') {
604: $increment=&Apache::response::scored_response($part,$id);
605: } else {
606: my $response = &Apache::response::getresponse();
607: if ( $response =~ /[^\s]/) {
608: my %previous = &Apache::response::check_for_previous($response,
609: $part,$id);
610: &Apache::lonxml::debug("submitted a $response<br>\n");
611: &Apache::lonxml::debug($$parstack[-1] . "\n<br>");
612: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
613: $response;
614: my ($ad,$msg);
615: if ($type eq 're' ) {
616: # if the RE wasn't in a var it likely got munged,
617: # thus grab it from the var directly
618: # my $testans=$token->[2]->{'answer'};
619: # if ($testans !~ m/^\s*\$/) {
620: # $answer=$token->[2]->{'answer'};
621: # }
622: ${$safeeval->varglob('LONCAPA::response')}=$response;
623: $result = &Apache::run::run('return $LONCAPA::response=~m'.$answer,$safeeval);
624: &Apache::lonxml::debug("current $response");
625: &Apache::lonxml::debug("current $answer");
626: $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
627: } else {
628: my $args_ref=
629: \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
630:
631: $$args_ref{'response'}=$response;
632: &Apache::lonxml::debug("current $response");
633: $$args_ref{'type'}=
634: &Apache::lonxml::get_param('type',$parstack,$safeeval);
635: foreach my $key (keys(%Apache::inputtags::params)) {
636: $$args_ref{$key}=$Apache::inputtags::params{$key};
637: }
638: &Apache::lonxml::debug('answer is'.join(':',$answer));
639: @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=($answer);
640: ($result, my @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
641: &Apache::lonxml::debug('msgs are'.join(':',@msgs));
642: my ($awards)=split(/:/,$result);
643: my (@awards) = split(/,/,$awards);
644: ($ad,$msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
645: &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
646: }
647: &Apache::response::handle_previous(\%previous,$ad);
648: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
649: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
650: }
651: }
652: } elsif ($target eq 'web' || $target eq 'tex') {
653: my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
654: my $status = $Apache::inputtags::status['-1'];
655: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
656: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
657: $increment = &Apache::response::repetition();
658: $result.='\begin{enumerate}';
659: for (my $i=0;$i<$increment;$i++) {
660: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
661: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
662: }
663: $result.= '\end{enumerate}';
664: }
665: } elsif ($target eq 'answer' || $target eq 'analyze') {
666: if ($target eq 'analyze') {
667: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
668: $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
669: }
670: &Apache::response::setup_params('stringresponse',$safeeval);
671: if ($target eq 'answer') {
672: $result.=&Apache::response::answer_header('stringresponse');
673: }
674: # foreach my $ans (@answers) {
675: if ($target eq 'answer') {
676: $result.=&Apache::response::answer_part('stringresponse',$answer);
677: } elsif ($target eq 'analyze') {
678: push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
679: $answer);
680: }
681: # }
682: my $string='Case Insensitive';
683: if ($type eq 'mc') {
684: $string='Multiple Choice';
685: } elsif ($type eq 'cs') {
686: $string='Case Sensitive';
687: } elsif ($type eq 'ci') {
688: $string='Case Insensitive';
689: } elsif ($type eq 're') {
690: $string='Regular Expression';
691: }
692: if ($target eq 'answer') {
693: if ($ENV{'form.answer_output_mode'} eq 'tex') {
694: $result.=&Apache::response::answer_part('stringresponse',
695: "$string");
696: } else {
697: $result.=&Apache::response::answer_part('stringresponse',
698: "<b>$string</b>");
699: }
700: } elsif ($target eq 'analyze') {
701: push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
702: $type);
703: }
704: if ($target eq 'answer') {
705: $result.=&Apache::response::answer_footer('stringresponse');
706: }
707: } elsif ($target eq 'edit') {
708: $result.='</td></tr>'.&Apache::edit::end_table;
709: }
710: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
711: $target eq 'tex' || $target eq 'analyze') {
712: &Apache::lonxml::increment_counter($increment);
713: }
714: &Apache::response::end_response;
715: return $result;
716: }
717:
718: sub start_formularesponse {
719: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
720: my $result;
721: if ($target eq 'meta') {
722: &Apache::response::start_response($parstack,$safeeval);
723: $result=&Apache::response::meta_package_write('formularesponse');
724: &Apache::response::end_response();
725: } else {
726: $result.=&start_numericalresponse(@_);
727: }
728: return $result;
729: }
730:
731: sub end_formularesponse {
732: return end_numericalresponse(@_);
733: }
734:
735: 1;
736: __END__
737:
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