--- loncom/homework/caparesponse/caparesponse.pm 2002/08/26 19:44:33 1.53
+++ loncom/homework/caparesponse/caparesponse.pm 2007/03/01 02:31:29 1.209
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# caparesponse definition
#
-# $Id: caparesponse.pm,v 1.53 2002/08/26 19:44:33 sakharuk Exp $
+# $Id: caparesponse.pm,v 1.209 2007/03/01 02:31:29 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -29,301 +29,1204 @@
package Apache::caparesponse;
use strict;
use capa;
+use Safe::Hole;
+use Apache::lonmaxima();
+use Apache::lonlocal;
+use Apache::lonnet;
+use Apache::response();
+use Storable qw(dclone);
BEGIN {
- &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));
+ &Apache::lonxml::register('Apache::caparesponse',('numericalresponse','stringresponse','formularesponse'));
}
-sub start_caparesponse {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- my $id = &Apache::response::start_response($parstack,$safeeval);
- return '';
-}
-
-sub end_caparesponse {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- my $result = '';
- if ( $target eq 'grade' ) {
- if ( defined $ENV{'form.submitted'}) {
- $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
- my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
- if ( $response =~ /[^\s]/) {
- my $id = $Apache::inputtags::response['-1'];
- my $previous= &Apache::response::check_for_previous($response,$id,$response);
- if ( $previous ) {
- $result = 'PREVIOUSLY_USED';
- } else {
- $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response;
- &Apache::lonxml::debug("submitted a $response
\n");
- &Apache::lonxml::debug($$parstack[$#$parstack] . "\n
");
- my $expression="&caparesponse_check('".$response."','".
- $$parstack[$#$parstack].
- ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'.
- ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'.
- "');";
- $result = &Apache::run::run($expression,$safeeval);
- my ($ad) = split /:/ , $result;
- $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$ad;
- &Apache::lonxml::debug("$expression");
- &Apache::lonxml::debug("\n
result:$result:$Apache::lonxml::curdepth
\n");
- }
- }
- }
- } elsif ($target eq 'web') {
- #$result .= "The correct answer is ".&Apache::run::run("{$$parstack['-1'];".'return $answer}',$safeeval)."\n";
- }
- #Apache::lonxml::debug("\n
\nreal end caparesponse
\n");
- &Apache::response::end_response;
- return '';
+my %answer;
+my @answers;
+sub get_answer { return %answer; };
+sub push_answer{ push(@answers,dclone(\%answer)); undef(%answer) }
+sub pop_answer { %answer = %{pop(@answers)}; };
+
+my $cur_name;
+my $tag_internal_answer_name = 'INTERNAL';
+
+sub start_answer {
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+ my $result;
+ $cur_name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
+ if ($cur_name =~ /^\s*$/) { $cur_name = $Apache::lonxml::curdepth; }
+ my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
+ if (!defined($type) && $tagstack->[-2] eq 'answergroup') {
+ $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
+ }
+ if (!defined($type)) { $type = 'ordered' };
+ $answer{$cur_name}= { 'type' => $type,
+ 'answers' => [] };
+ if ($target eq 'edit') {
+ $result.=&Apache::edit::tag_start($target,$token);
+ $result.=&Apache::edit::text_arg('Name:','name',$token);
+ $result.=&Apache::edit::select_arg('Type:','type',
+ [['ordered', 'Ordered' ],
+ ['unordered','Unordered'],],
+ $token);
+ $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
+ } elsif ($target eq 'modified') {
+ my $constructtag = &Apache::edit::get_new_args($token,$parstack,
+ $safeeval,'name',
+ 'type');
+ if ($constructtag) {
+ $result = &Apache::edit::rebuild_tag($token);
+ $result.= &Apache::edit::handle_insert();
+ }
+ }
+ return $result;
+}
+
+sub end_answer {
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+ my $result;
+ if ($target eq 'edit') {
+ $result .= &Apache::edit::tag_end();
+ }
+
+ undef($cur_name);
+ return $result;
+}
+
+sub insert_answer {
+ return '
+
\n");
- &Apache::lonxml::debug($$parstack[$#$parstack] . "\n
");
- $response =~ s/\\/\\\\/g;
- $response =~ s/\'/\\\'/g;
- &Apache::lonxml::debug("current $response");
- my $expression="&caparesponse_check_list('".$response."','".
- $$parstack[$#$parstack];
- foreach my $key (keys(%Apache::inputtags::params)) {
- $expression.= ';my $'. #'
- $key.'="'.$Apache::inputtags::params{$key}.'"';
- }
- if ($$tagstack[-1] eq 'formularesponse') {
- $expression.=';my $type="fml";';
- } elsif ($$tagstack[-1] eq 'numericalresponse') {
- $expression.=';my $type="float";';
- }
- $expression.="');";
- $result = &Apache::run::run($expression,$safeeval);
- my ($awards) = split /:/ , $result;
- my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
- &Apache::response::handle_previous(\%previous,$ad);
- $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
- &Apache::lonxml::debug("$expression");
- &Apache::lonxml::debug("\n
result:$result:$Apache::lonxml::curdepth
\n");
- $result='';
- }
- }
- } elsif ($target eq 'web' || $target eq 'tex') {
- my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
- my $status = $Apache::inputtags::status['-1'];
- if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) {
- my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
- $safeeval);
- my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
- $safeeval);
- my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
+sub set_answertext {
+ my ($name,$target,$token,$tagstack,$parstack,$parser,$safeeval,
+ $response_level) = @_;
+ &add_in_tag_answer($parstack,$safeeval,$response_level);
- if ($target eq 'web') {
- $result="
The computer got ";
- } elsif ($target eq 'tex') {
- $result='\vskip 0 mm The computer got ';
- }
- for (my $i=0; $i <= $#answers; $i++) {
- my $answer=$answers[$i];
- my $format;
- if ($#formats > 0) {
- $format=$formats[$i];
+ if ($name eq '' || !ref($answer{$name})) {
+ if (ref($answer{$tag_internal_answer_name})) {
+ $name = $tag_internal_answer_name;
} else {
- $format=$formats[0];
+ $name = (sort(keys(%answer)))[0];
+ }
+ }
+ return if ($name eq '' || !ref($answer{$name}));
+
+ my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
+ $safeeval,$response_level);
+ my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval,
+ $response_level);
+
+ &Apache::lonxml::debug("answer looks to be $name");
+ my @answertxt;
+ for (my $i=0; $i < scalar(@{$answer{$name}{'answers'}}); $i++) {
+ my $answertxt;
+ my $answer=$answer{$name}{'answers'}[$i];
+ foreach my $element (@$answer) {
+ if ( scalar(@$tagstack)
+ && $tagstack->[$response_level] ne 'numericalresponse') {
+ $answertxt.=$element.',';
+ } else {
+ my $format;
+ if ($#formats > 0) {
+ $format=$formats[$i];
+ } else {
+ $format=$formats[0];
+ }
+ if ($unit=~/\$/) { $format="\$".$format; $unit=~s/\$//g; }
+ if ($unit=~/\,/) { $format="\,".$format; $unit=~s/\,//g; }
+ my $formatted=&format_number($element,$format,$target,
+ $safeeval);
+ $answertxt.=' '.$formatted.',';
+ }
+
}
- if ((defined($format)) && ($format ne '')) {
- &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
- $result.=sprintf('%.'.$format,$answer).',';
+ chop($answertxt);
+ if ($target eq 'web') {
+ $answertxt.=" $unit ";
+ }
+
+ push(@answertxt,$answertxt)
+ }
+
+ my $id = $Apache::inputtags::response[-1];
+ $Apache::inputtags::answertxt{$id}=\@answertxt;
+}
+
+sub setup_capa_args {
+ my ($safeeval,$parstack,$args,$response) = @_;
+ my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
+ undef(%{ $args_ref });
+
+ foreach my $arg (@{$args}) {
+ $$args_ref{$arg}=
+ &Apache::lonxml::get_param($arg,$parstack,$safeeval);
+ }
+ foreach my $key (keys(%Apache::inputtags::params)) {
+ $$args_ref{$key}=$Apache::inputtags::params{$key};
+ }
+ &setup_capa_response($args_ref,$response);
+ return $args_ref;
+}
+
+sub setup_capa_response {
+ my ($args_ref,$response) = @_;
+
+ use Data::Dumper;
+ &Apache::lonxml::debug("response dump is ".&Dumper($response));
+
+ if (ref($response)) {
+ $$args_ref{'response'}=dclone($response);
+ } else {
+ $$args_ref{'response'}=dclone([$response]);
+ }
+}
+
+sub check_submission {
+ my ($response,$partid,$id,$tag,$parstack,$safeeval,$ignore_sig)=@_;
+ my @args = ('type','tol','sig','format','unit','calc','samples');
+ my $args_ref = &setup_capa_args($safeeval,$parstack,\@args,$response);
+
+ my $hideunit=
+ &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
+ #no way to enter units, with radio buttons
+ if ($Apache::lonhomework::type eq 'exam' ||
+ lc($hideunit) eq "yes") {
+ delete($$args_ref{'unit'});
+ }
+ #sig fig don't make much sense either
+ if (($Apache::lonhomework::type eq 'exam' ||
+ &Apache::response::submitted('scantron') ||
+ $ignore_sig) &&
+ $tag eq 'numericalresponse') {
+ delete($$args_ref{'sig'});
+ }
+
+ if ($tag eq 'formularesponse') {
+ if ($$args_ref{'samples'}) {
+ $$args_ref{'type'}='fml';
} else {
- &Apache::lonxml::debug("no format answer :$answer:");
- $result.="$answer,";
+ $$args_ref{'type'}='math';
}
- }
- chop $result;
- if ($target eq 'web') {
- $result.=" $unit.
";
- } elsif ($target eq 'tex') {
- $result.=" $unit.\\vskip 0 mm ";
- }
- }
- } elsif ($target eq 'edit') {
- $result.=''.&Apache::edit::end_table;
- } elsif ($target eq 'answer') {
-
- &Apache::response::setup_params($$tagstack[-1]);
- my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
- my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
- my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
- my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
+ } elsif ($tag eq 'numericalresponse') {
+ $$args_ref{'type'}='float';
+ }
+
+ &add_in_tag_answer($parstack,$safeeval);
+
+ my (@final_awards,@final_msgs,@names);
+ foreach my $name (keys(%answer)) {
+ &Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} }));
+
+ ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name});
+ &setup_capa_response($args_ref,$response);
+ use Time::HiRes;
+ my $t0 = [Time::HiRes::gettimeofday()];
+ my ($result,@msgs) =
+ &Apache::run::run("&caparesponse_check_list()",$safeeval);
+ &Apache::lonxml::debug("checking $name $result with $response took ".&Time::HiRes::tv_interval($t0));
+ &Apache::lonxml::debug('msgs are '.join(':',@msgs));
+ my ($awards)=split(/:/,$result);
+ my @awards= split(/,/,$awards);
+ my ($ad, $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
+ push(@final_awards,$ad);
+ push(@final_msgs,$msg);
+ push(@names,$name);
+ }
+ my ($ad, $msg, $name) = &Apache::inputtags::finalizeawards(\@final_awards,
+ \@final_msgs,
+ \@names,1);
+ &Apache::lonxml::debug(" name of picked award is $name from ".join(', ',@names));
+ return($ad,$msg, $name);
+}
+
+sub add_in_tag_answer {
+ my ($parstack,$safeeval,$response_level) = @_;
+ my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval,
+ $response_level);
+ &Apache::lonxml::debug('answer is'.join(':',@answer));
+ if (@answer && defined($answer[0])) {
+ $answer{$tag_internal_answer_name}= {'type' => 'ordered',
+ 'answers' => [\@answer] };
+ }
+}
+
+sub capa_formula_fix {
+ my ($expression)=@_;
+ return &Apache::response::implicit_multiplication($expression);
+}
+
+sub end_numericalresponse {
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+
+ &Apache::lonxml::deregister('Apache::caparesponse',
+ ('answer','answergroup','value','array','unit',
+ 'vector'));
+ pop(@Apache::lonxml::namespace);
+
+ my $increment=1;
+ my $result = '';
+ if (!$Apache::lonxml::default_homework_loaded) {
+ &Apache::lonxml::default_homework_load($safeeval);
+ }
+ my $partid = $Apache::inputtags::part;
+ my $id = $Apache::inputtags::response[-1];
+ my $tag;
+ my $safehole = new Safe::Hole;
+ $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
+
+ if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
+ if ( $target eq 'grade' && &Apache::response::submitted() ) {
+ &Apache::response::setup_params($tag,$safeeval);
+ if ($Apache::lonhomework::type eq 'exam' &&
+ (($tag eq 'formularesponse') || ($tag eq 'mathresponse'))) {
+ $increment=&Apache::response::scored_response($partid,$id);
+ } else {
+ my $response = &Apache::response::getresponse();
+ if ( $response =~ /[^\s]/) {
+ my %previous = &Apache::response::check_for_previous($response,$partid,$id);
+ &Apache::lonxml::debug("submitted a $response
\n");
+ &Apache::lonxml::debug($$parstack[-1] . "\n
");
+
+ if ( &Apache::response::submitted('scantron')) {
+ &add_in_tag_answer($parstack,$safeeval);
+ my ($values,$display)=&make_numerical_bubbles($partid,$id,
+ $target,$parstack,$safeeval);
+ $response=$values->[$response];
+ }
+ $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
+ my ($ad,$msg,$name)=&check_submission($response,$partid,$id,
+ $tag,$parstack,
+ $safeeval);
+
+ &Apache::lonxml::debug('ad is'.$ad);
+ if ($ad eq 'SIG_FAIL') {
+ my ($sig_u,$sig_l)=
+ &get_sigrange($Apache::inputtags::params{'sig'});
+ $msg=join(':',$msg,$sig_l,$sig_u);
+ &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
+ $Apache::inputtags::params{'sig'});
+ }
+ &Apache::lonxml::debug("\n
result:$result:$Apache::lonxml::curdepth
\n");
+ if ($Apache::lonhomework::type eq 'survey' &&
+ ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
+ $ad eq 'EXACT_ANS')) {
+ $ad='SUBMITTED';
+ }
+ &Apache::response::handle_previous(\%previous,$ad);
+ $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
+ $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
+ $Apache::lonhomework::results{"resource.$partid.$id.answername"}=$name;
+ $result='';
+ }
+ }
+ } elsif ($target eq 'web' || $target eq 'tex') {
+ &check_for_answer_errors($parstack,$safeeval);
+ my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
+ my $status = $Apache::inputtags::status['-1'];
+ if ($Apache::lonhomework::type eq 'exam') {
+ # FIXME support multi dimensional numerical problems
+ # in exam bubbles
+ my ($bubble_values,$bubble_display)=
+ &make_numerical_bubbles($partid,$id,$target,$parstack,
+ $safeeval);
+ my $number_of_bubbles = scalar(@{ $bubble_values });
+ my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
+ $safeeval);
+ my @alphabet=('A'..'Z');
+ if ($target eq 'web') {
+ if ($tag eq 'numericalresponse') {
+ if ($unit=~/\S/) {$result.=' (in '.$unit.')
';}
+ $result.= '
'.$alphabet[$ind].': '. + $bubble_display->[$ind].' | '; + } + $result.='
'.&HTML::Entities::encode($Apache::lonhomework::history{$key}, + '"<>&').''; + } +} + +sub check_for_answer_errors { + my ($parstack,$safeeval) = @_; + &add_in_tag_answer($parstack,$safeeval); + my %counts; + foreach my $name (keys(%answer)) { + push(@{$counts{scalar(@{$answer{$name}{'answers'}})}},$name); + } + if (scalar(keys(%counts)) > 1) { + my $counts = join(' ',map { + my $count = $_; + &mt("Answers [_1] had [_2] components.", + ''.join(', ',@{$counts{$count}}).'', + $count); + } (sort(keys(%counts)))); + &Apache::lonxml::error(&mt("All answers must have the same number of components. Varying numbers of answers were seen. ").$counts); + } + use Data::Dumper; + &Apache::lonxml::debug("count dump is ".&Dumper(\%counts)); + my $expected_number_of_inputs = (keys(%counts))[0]; + if ( $expected_number_of_inputs != scalar(@Apache::inputtags::inputlist)) { + &Apache::lonxml::error(&mt("Expected [_1] input fields, but there were only [_2] seen.", + $expected_number_of_inputs, + scalar(@Apache::inputtags::inputlist))); + } +} + +sub get_table_sizes { + my ($number_of_bubbles,$rbubble_values)=@_; + my $scale=2; #mm for one digit + my $cell_width=0; + foreach my $member (@$rbubble_values) { + my $cell_width_real=0; + if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) { + $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale; + } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) { + $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale; + } elsif ($member=~/(\d*)\.(\d*)/) { + $cell_width_real=(length($1)+length($2)+3)*$scale; } else { - $fmt=$formats[0]; + $cell_width_real=(length($member)+1)*$scale*0.9; + } + if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;} + } + $cell_width+=8; + my $textwidth; + if ($env{'form.textwidth'} ne '') { + $env{'form.textwidth'}=~/(\d*)\.?(\d*)/; + $textwidth=$1.'.'.$2; + } else { + $env{'form.textwidth'}=~/(\d+)\.?(\d*)/; + $textwidth=$1.'.'.$2; + } + my $bubbles_per_line=int($textwidth/$cell_width); + if ($bubbles_per_line > $number_of_bubbles) { + $bubbles_per_line=$number_of_bubbles; + }elsif (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;} + my $number_of_tables = int($number_of_bubbles/$bubbles_per_line); + my @table_range = (); + for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;} + if ($number_of_bubbles % $bubbles_per_line) { + $number_of_tables++; + push @table_range,($number_of_bubbles % $bubbles_per_line); + } + $cell_width-=8; + $cell_width=$cell_width*3/4; + return ($cell_width,$number_of_tables,@table_range); +} + +sub format_number { + my ($number,$format,$target,$safeeval)=@_; + my $ans; + if ($format eq '') { + #What is the number? (integer,decimal,floating point) + if ($number=~/^(\d*\.?\d*)(E|e)[+\-]?(\d*)$/) { + $format = '3e'; + } elsif ($number=~/^(\d*)\.(\d*)$/) { + $format = '4f'; + } elsif ($number=~/^(\d*)$/) { + $format = 'd'; + } + } + if (!$Apache::lonxml::default_homework_loaded) { + &Apache::lonxml::default_homework_load($safeeval); + } + $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval); + return $ans; +} + +sub make_numerical_bubbles { + my ($part,$id,$target,$parstack,$safeeval) =@_; + + my $number_of_bubbles = + &Apache::response::get_response_param($part.'_'.$id,'numbubbles',8); + + my ($format)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval); + my $name = (exists($answer{$tag_internal_answer_name}) + ? $tag_internal_answer_name + : (sort(keys(%answer)))[0]); + + if ( scalar(@{$answer{$name}{'answers'}}) > 1) { + &Apache::lonxml::error("Only answers with 1 component are supported in exam mode"); + } + if (scalar(@{$answer{$name}{'answers'}[0]}) > 1) { + &Apache::lonxml::error("Vector answers are unsupported in exam mode."); + } + + my $answer = $answer{$name}{'answers'}[0][0]; + my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack, + $safeeval); + if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); } + + my @bubble_values=(); + my @alphabet=('A'..'Z'); + + &Apache::lonxml::debug("answer is $answer incorrect is @incorrect"); + my @oldseed=&Math::Random::random_get_seed(); + if (@incorrect) { + &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1 gt $number_of_bubbles)); + if (defined($incorrect[0]) && + scalar(@incorrect)+1 >= $number_of_bubbles) { + &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1).":$number_of_bubbles"); + &Apache::response::setrandomnumber(); + my @rand_inc=&Math::Random::random_permutation(@incorrect); + @bubble_values=@rand_inc[0..($number_of_bubbles-2)]; + @bubble_values=sort {$a <=> $b} (@bubble_values,$answer); + &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": which are :".join(':',@bubble_values)); + &Math::Random::random_set_seed(@oldseed); + + my $correct; + for(my $i=0; $i<=$#bubble_values;$i++) { + if ($bubble_values[$i] eq $answer) { + $correct = $alphabet[$i]; + last; + } + } + + if (defined($format) && $format ne '') { + my @bubble_display; + foreach my $value (@bubble_values) { + push(@bubble_display, + &format_number($value,$format,$target,$safeeval)); + } + return (\@bubble_values,\@bubble_display,$correct); + } else { + return (\@bubble_values,\@bubble_values,$correct); + } + } + if (defined($incorrect[0]) && + scalar(@incorrect)+1 < $number_of_bubbles) { + &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them (".join(',',@incorrect).")."); } - } - my ($high,$low); - if ($Apache::inputtags::params{'tol'}) { - ($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'}); - } - my ($sighigh,$siglow); - if ($Apache::inputtags::params{'sig'}) { - ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'}); - } - if ($fmt) { - $ans = sprintf('%.'.$fmt,$ans); - if ($high) { - $high = sprintf('%.'.$fmt,$high); $low = sprintf('%.'.$fmt,$low); - } - } - if ($high) { $ans.=' ['.$low.','.$high.'] '; } - if ($sighigh) { $ans.= "Sig $siglow - $sighigh"; } - $result.=&Apache::response::answer_part($$tagstack[-1],$ans); - } - if ($unit) { - $result.=&Apache::response::answer_part($$tagstack[-1],"Unit: $unit"); - } - if ($type || $token->[1] eq 'stringresponse') { - my $string='Case Insensitive'; - if ($type eq 'mc') { - $string='Multiple Choice'; - } elsif ($type eq 'cs') { - $string='Case Sensitive'; - } elsif ($type eq 'ci') { - $string='Case Insensitive'; - } elsif ($type eq 'fml') { - $string='Formula'; - } - $result.=&Apache::response::answer_part($$tagstack[-1], - ''.$string.''); - } - if ($$tagstack[-1] eq 'formularesponse') { - my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval); - $result.=&Apache::response::answer_part($$tagstack[-1],$samples); - } - $result.=&Apache::response::answer_footer($$tagstack[-1]); - } - &Apache::response::end_response; - return $result; + } + my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors + my @powers = (1..$number_of_bubbles); + &Apache::response::setrandomnumber(); + my $ind=&Math::Random::random_uniform_integer(1,0,$#powers); + my $power = $powers[$ind]; + $ind=&Math::Random::random_uniform_integer(1,0,$#factors); + my $factor = $factors[$ind]; + my @bubble_display; + for ($ind=0;$ind<$number_of_bubbles;$ind++) { + $bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind])); + $bubble_display[$ind] = &format_number($bubble_values[$ind], + $format,$target,$safeeval); + + } + my $correct = $alphabet[$number_of_bubbles-$power]; + &Math::Random::random_set_seed(@oldseed); + return (\@bubble_values,\@bubble_display,$correct); } sub get_tolrange { - my ($ans,$tol)=@_; - my ($high,$low); - if ($tol =~ /%$/) { - chop($tol); - my $change=$ans*($tol/100.0); - $high=$ans+$change; - $low=$ans-$change; - } else { - $high=$ans+$tol; - $low=$ans-$tol; - } - return ($high,$low); + my ($ans,$tol)=@_; + my ($high,$low); + if ($tol =~ /%$/) { + chop($tol); + my $change=$ans*($tol/100.0); + $high=$ans+$change; + $low=$ans-$change; + } else { + $high=$ans+$tol; + $low=$ans-$tol; + } + return ($high,$low); } sub get_sigrange { - my ($sig)=@_; - &Apache::lonxml::debug("Got a sig of :$sig:"); - my $sig_lbound; - my $sig_ubound; - if ($sig eq '') { - $sig_lbound = 0; #SIG_LB_DEFAULT - $sig_ubound =15; #SIG_UB_DEFAULT - } else { - ($sig_lbound,$sig_ubound) = split(/,/,$sig); - if (!$sig_lbound) { - $sig_lbound = 0; #SIG_LB_DEFAULT - $sig_ubound =15; #SIG_UB_DEFAULT - } - if (!$sig_ubound) { $sig_ubound=$sig_lbound; } - } - return ($sig_ubound,$sig_lbound); + my ($sig)=@_; + #&Apache::lonxml::debug("Got a sig of :$sig:"); + my $courseid=$env{'request.course.id'}; + if (lc($env{"course.$courseid.disablesigfigs"}) eq 'yes') { + return (15,0); + } + my $sig_lbound; + my $sig_ubound; + if ($sig eq '') { + $sig_lbound = 0; #SIG_LB_DEFAULT + $sig_ubound =15; #SIG_UB_DEFAULT + } else { + ($sig_lbound,$sig_ubound) = split(/,/,$sig); + if (!defined($sig_lbound)) { + $sig_lbound = 0; #SIG_LB_DEFAULT + $sig_ubound =15; #SIG_UB_DEFAULT + } + if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; } + } + if (($sig_ubound<$sig_lbound) || + ($sig_lbound > 15) || + ($sig =~/(\+|-)/ ) ) { + my $errormsg=&mt("Invalid Significant figures detected")." ($sig)"; + if ($env{'request.state'} eq 'construct') { + $errormsg.= + &Apache::loncommon::help_open_topic('Significant_Figures'); + } + &Apache::lonxml::error($errormsg); + } + return ($sig_ubound,$sig_lbound); } sub start_stringresponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; - my $result; - if ($target eq 'meta') { - $result=&Apache::response::meta_package_write('stringresponse'); - } else { - $result.=&start_numericalresponse(@_); - } - return $result; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + my $id = &Apache::response::start_response($parstack,$safeeval); + if ($target eq 'meta') { + $result=&Apache::response::meta_package_write('stringresponse'); + } elsif ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::text_arg('Answer:','answer',$token); + $result.=&Apache::edit::select_arg('Type:','type', + [['cs','Case Sensitive'],['ci','Case Insensitive'], + ['mc','Case Insensitive, Any Order'], + ['re','Regular Expression']],$token); + $result.=&Apache::edit::text_arg('String to display for answer:', + 'answerdisplay',$token); + $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag; + $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'answer', + 'type','answerdisplay'); + if ($constructtag) { + $result = &Apache::edit::rebuild_tag($token); + $result.=&Apache::edit::handle_insert(); + } + } elsif ($target eq 'web') { + if ( &Apache::response::show_answer() ) { + my $answer= + &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval); + if (!defined $answer || $answer eq '') { + $answer= + &Apache::lonxml::get_param('answer',$parstack,$safeeval); + } + $Apache::inputtags::answertxt{$id}=[$answer]; + } + } elsif ($target eq 'answer' || $target eq 'grade') { + &Apache::response::reset_params(); + } + return $result; } sub end_stringresponse { - return end_numericalresponse(@_); + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + + my $result = ''; + my $part=$Apache::inputtags::part; + my $id=$Apache::inputtags::response[-1]; + my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval); + my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval); + my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval); + &Apache::lonxml::debug("current $answer ".$token->[2]); + if (!$Apache::lonxml::default_homework_loaded) { + &Apache::lonxml::default_homework_load($safeeval); + } + if ( $target eq 'grade' && &Apache::response::submitted() ) { + &Apache::response::setup_params('stringresponse',$safeeval); + $safeeval->share_from('capa',['&caparesponse_capa_check_answer']); + if ($Apache::lonhomework::type eq 'exam' || + &Apache::response::submitted('scantron')) { + &Apache::response::scored_response($part,$id); + + } else { + my $response = &Apache::response::getresponse(); + if ( $response =~ /[^\s]/) { + my %previous = &Apache::response::check_for_previous($response, + $part,$id); + &Apache::lonxml::debug("submitted a $response