# The LearningOnline Network with CAPA
# caparesponse definition
#
# $Id: caparesponse.pm,v 1.107.2.2 2003/10/15 19:54:45 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
package Apache::caparesponse;
use strict;
use capa;
BEGIN {
&Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));
}
sub start_numericalresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $id = &Apache::response::start_response($parstack,$safeeval);
my $result;
if ($target eq 'edit') {
$result.=&Apache::edit::tag_start($target,$token);
$result.=&Apache::edit::text_arg('Answer:','answer',$token);
if ($token->[1] eq 'numericalresponse') {
$result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
&Apache::loncommon::help_open_topic('Physical_Units');
$result.=&Apache::edit::text_arg('Format:','format',$token,4).
&Apache::loncommon::help_open_topic('Numerical_Response_Format');
} elsif ($token->[1] eq 'stringresponse') {
$result.=&Apache::edit::select_arg('Type:','type',
[['cs','Case Sensitive'],['ci','Case Insensitive'],
['mc','Case Insensitive, Any Order']],$token);
} elsif ($token->[1] eq 'formularesponse') {
$result.=&Apache::edit::text_arg('Sample Points:','samples',
$token,40).
&Apache::loncommon::help_open_topic('Formula_Response_Sampling');
}
$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag;
if ($token->[1] eq 'numericalresponse') {
$constructtag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'answer',
'unit','format');
} elsif ($token->[1] eq 'stringresponse') {
$constructtag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'answer',
'type');
} elsif ($token->[1] eq 'formularesponse') {
$constructtag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'answer',
'samples');
}
if ($constructtag) {
$result = &Apache::edit::rebuild_tag($token);
$result.=&Apache::edit::handle_insert();
}
} elsif ($target eq 'meta') {
$result=&Apache::response::meta_package_write('numericalresponse');
} elsif ($target eq 'answer' || $target eq 'grade') {
&Apache::response::reset_params();
} elsif ($target eq 'web') {
my $partid = $Apache::inputtags::part;
my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
&Apache::lonxml::debug("Got unit $hideunit for $partid $id");
#no way to enter units, with radio buttons
if (lc($hideunit) eq "yes") {
my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
$safeeval);
if ($unit =~ /\S/) { $result.=" (in $unit) "; }
}
}
return $result;
}
sub end_numericalresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $increment=1;
my $result = '';
if (!$Apache::lonxml::default_homework_loaded) {
&Apache::lonxml::default_homework_load($safeeval);
}
if ( $target eq 'grade' && defined($ENV{'form.submitted'})) {
&Apache::response::setup_params($$tagstack[-1]);
$safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
my $partid = $Apache::inputtags::part;
my $id = $Apache::inputtags::response['-1'];
if ($Apache::lonhomework::type eq 'exam' &&
($$tagstack[-1] eq 'formularesponse' ||
$$tagstack[-1] eq 'stringresponse')) {
$increment=&Apache::response::scored_response($partid,$id);
} else {
my $response = &Apache::response::getresponse();
if ( $response =~ /[^\s]/) {
my $ad;
my %previous = &Apache::response::check_for_previous($response,$partid,$id);
$Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
&Apache::lonxml::debug("submitted a $response<br>\n");
&Apache::lonxml::debug($$parstack[-1] . "\n<br>");
if ($ENV{'form.submitted'} eq 'scantron') {
my $number_of_bubbles = 8;#default values for number of bubbles
my (@formats)=&Apache::lonxml::get_param_var('format',
$parstack,$safeeval);
my (@answers)=&Apache::lonxml::get_param_var('answer',
$parstack,$safeeval);
my @values=&make_numerical_bubbles($number_of_bubbles,$target,
$answers[0],$formats[0]);
$response=$values[$response];
} else {
$response =~ s/\\/\\\\/g;
$response =~ s/\'/\\\'/g;
}
&Apache::lonxml::debug("current $response");
my $expression="&caparesponse_check_list('".$response."','".
$$parstack[-1];
my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
#no way to enter units, with radio buttons
if ($Apache::lonhomework::type eq 'exam' ||
lc($hideunit) eq "yes") {
$expression.=';my $unit=undef;';
}
foreach my $key (keys(%Apache::inputtags::params)) {
$expression.= ';my $'. #'
$key.'="'.$Apache::inputtags::params{$key}.'"';
}
if ($$tagstack[-1] eq 'formularesponse') {
$expression.=';my $type="fml";';
} elsif ($$tagstack[-1] eq 'numericalresponse') {
$expression.=';my $type="float";';
}
$expression.="');";
my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
&Apache::lonxml::debug('answer is'.join(':',@answer));
@{$safeeval->varglob('CAPARESPONSE_CHECK_LIST_answer')}=@answer;
$result = &Apache::run::run($expression,$safeeval);
my ($awards) = split /:/ , $result;
($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards);
&Apache::lonxml::debug("$expression");
&Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
&Apache::response::handle_previous(\%previous,$ad);
$Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
$result='';
}
}
} elsif ($target eq 'web' || $target eq 'tex') {
my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
$safeeval);
my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
my $status = $Apache::inputtags::status['-1'];
if ( &Apache::response::show_answer() ) {
my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
$safeeval);
my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
$safeeval);
if ($target eq 'web') {
$result="<br />The correct answer is ";
} elsif ($target eq 'tex') {
if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {
$result='\vskip 0 mm The correct answer is \\texttt{ ';
}
}
for (my $i=0; $i <= $#answers; $i++) {
my $answer=$answers[$i];
my $format;
if ($#formats > 0) {
$format=$formats[$i];
} else {
$format=$formats[0];
}
my $formatted;
if ((defined($format)) && ($format ne '')) {
&Apache::lonxml::debug("formatting with :$format: answer :$answer:");
$formatted=sprintf('%.'.$format,$answer).',';
} else {
&Apache::lonxml::debug("no format answer :$answer:");
$formatted="$answer,";
}
if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {
$result.=$formatted;
}
if ($target eq 'tex') {
$formatted='';
#$formatted=&Apache::lonxml::latex_special_symbols($formatted);
}
$result.=$formatted;
}
chop $result;
if ($target eq 'web') {
$result.=" $unit.<br />";
} elsif ($target eq 'tex') {
if ($ENV{'form.texaward'} eq 'SHOW_ANSWER') {
$result.=&Apache::lonxml::latex_special_symbols($unit);
$result.="}. \\vskip 0 mm ";
}
}
}
if ($Apache::lonhomework::type eq 'exam') {
my $number_of_bubbles = 8; #default values for number of bubbles
my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
$safeeval);
my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
$safeeval);
my @bubble_values=&make_numerical_bubbles($number_of_bubbles,
$target,$answers[0],
$formats[0]);
my @alphabet=('A'..'Z');
my $id=$Apache::inputtags::response[-1];
if ($target eq 'web') {
if ($$tagstack[-1] eq 'numericalresponse') {
if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
$result.= '<table border="1"><tr>';
my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
my $checked='';
if ($previous eq $bubble_values[$ind]) {
$checked=" checked='on' ";
}
$result.='<td><input type="radio" name="HWVAL_'.$id.
'" value="'.$bubble_values[$ind].'" '.$checked
.' /><b>'.$alphabet[$ind].'</b>: '.
$bubble_values[$ind].'</td>';
}
$result.='</tr></table>';
} elsif ($$tagstack[-1] eq 'formularesponse') {
$result.= '<br /><br /><font color="red">
<textarea name="HWVAL_'.$id.'" rows="4" cols="50">
</textarea></font> <br /><br />';
}
} elsif ($target eq 'tex') {
if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
$result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
}
if ($$tagstack[-1] eq 'numericalresponse') {
my ($celllength,$number_of_tables,@table_range)=
&get_table_sizes($formats[0],$number_of_bubbles);
my $j=0;
my $cou=0;
$result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
for (my $i=0;$i<$number_of_tables;$i++) {
$result.='\vskip -1 mm \noindent \begin{tabular}{';
for (my $ind=0;$ind<$table_range[$j];$ind++) {
$result.='lp{'.$celllength.' mm}';
}
$result.='}';
for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
$result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$bubble_values[$ind].'} ';
if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
}
$cou += $table_range[$j];
$j++;
$result.='\\\\\end{tabular}\vskip 0 mm ';
}
$result.='\end{enumerate}';
} else {
$result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
my $repetition = &Apache::response::repetition();
$result.='\begin{enumerate}';
for (my $i=0;$i<$repetition;$i++) {
$result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
}
$increment=$repetition;
$result.= '\end{enumerate}';
}
}
}
} elsif ($target eq 'edit') {
$result.='</td></tr>'.&Apache::edit::end_table;
} elsif ($target eq 'answer' || $target eq 'analyze') {
my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
if ($target eq 'analyze') {
push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
$Apache::lonhomework::analyze{"$part_id.type"} = $$tagstack[-1];
}
&Apache::response::setup_params($$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,$safeeval);
if ($target eq 'answer') {
$result.=&Apache::response::answer_header($$tagstack[-1]);
}
for(my $i=0;$i<=$#answers;$i++) {
my $ans=$answers[$i];
my $fmt=$formats[0];
if (@formats && $#formats) {$fmt=$formats[$i];}
my ($high,$low);
if ($Apache::inputtags::params{'tol'}) {
($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
}
my ($sighigh,$siglow);
if ($Apache::inputtags::params{'sig'}) {
($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
}
if ($fmt && $$tagstack[-1] eq 'numericalresponse') {
$ans = sprintf('%.'.$fmt,$ans);
if ($high) {
$high=sprintf('%.'.$fmt,$high);
$low =sprintf('%.'.$fmt,$low);
}
}
if ($target eq 'answer') {
if ($high && $$tagstack[-1] eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
if ($sighigh && $$tagstack[-1] eq 'numericalresponse') {
if ($ENV{'form.answer_output_mode'} eq 'tex') {
$ans.= " Sig $siglow - $sighigh";
} else {
$ans.= " Sig <i>$siglow - $sighigh</i>";
}
}
$result.=&Apache::response::answer_part($$tagstack[-1],$ans);
} elsif ($target eq 'analyze') {
push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
if ($high) {
push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
}
}
}
if (defined($unit) and ($unit ne '') and
$$tagstack[-1] eq 'numericalresponse') {
if ($target eq 'answer') {
if ($ENV{'form.answer_output_mode'} eq 'tex') {
$result.=&Apache::response::answer_part($$tagstack[-1],
" Unit: $unit ");
} else {
$result.=&Apache::response::answer_part($$tagstack[-1],
"Unit: <b>$unit</b>");
}
} elsif ($target eq 'analyze') {
push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
}
}
if ($type || $$tagstack[-1] eq 'stringresponse') {
my $string='Case Insensitive';
if ($type eq 'mc') {
$string='Multiple Choice';
} elsif ($type eq 'cs') {
$string='Case Sensitive';
} elsif ($type eq 'ci') {
$string='Case Insensitive';
} elsif ($type eq 'fml') {
$string='Formula';
}
if ($target eq 'answer') {
if ($ENV{'form.answer_output_mode'} eq 'tex') {
$result.=&Apache::response::answer_part($$tagstack[-1],
"\\textbf{$string}");
} else {
$result.=&Apache::response::answer_part($$tagstack[-1],
"<b>$string</b>");
}
} elsif ($target eq 'analyze') {
push (@{ $Apache::lonhomework::analyze{"$part_id.str_type"} },
$type);
}
}
if ($$tagstack[-1] eq 'formularesponse' && $target eq 'answer') {
my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
$result.=&Apache::response::answer_part($$tagstack[-1],$samples);
}
if ($target eq 'answer') {
$result.=&Apache::response::answer_footer($$tagstack[-1]);
}
}
if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
$target eq 'tex' || $target eq 'analyze') {
&Apache::lonxml::increment_counter($increment);
}
&Apache::response::end_response;
return $result;
}
sub get_table_sizes {
my ($format,$number_of_bubbles)=@_;
my $max_val = 0;
if ($format=~m/^(\d+)E([^\d]*)(\d*)$/) {
$max_val=$1+$2+4;
} else {
$max_val=4;
}
$max_val = int(0.9*$ENV{'form.textwidth'}/(($max_val+6)*2));
my $celllength = 0.9*$ENV{'form.textwidth'}/$max_val-10;
my @table_range = ();
my $number_of_tables = int($number_of_bubbles/$max_val);
for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$max_val;}
if ($number_of_bubbles % $max_val != 0) {
$number_of_tables++;
push @table_range,($number_of_bubbles % $max_val);
}
return ($celllength,$number_of_tables,@table_range);
}
sub format_number {
my ($number,$format,$target)=@_;
my $ans;
if ($format ne '') {
$ans = sprintf('%.'.$format,$number);
} else {
my $format = '';
#What is the number? (integer,decimal,floating point)
if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
$format = 'e'.$2;
} elsif ($number=~/^(\d*)\.(\d*)$/) {
$format = '4f';
} elsif ($number=~/^(\d*)$/) {
$format = 'd';
}
$ans = sprintf('%.'.$format,$number);
}
if ($target eq 'tex') {
if ($ans =~ m/([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
my $number = $1;
my $power = $2;
$power=~s/^\+//;
$power=~s/^(-?)0+(\d+)//;
$ans=$number.'$\times 10^{'.$1.$2.'}$'; #'stupidemacs
}
}
return $ans;
}
sub make_numerical_bubbles {
my ($number_of_bubbles,$target,$answer,$format) =@_;
my @bubble_values = ();
my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
my @powers = (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0); #default values for powers
&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];
for ($ind=0;$ind<$number_of_bubbles;$ind++) {
$bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
$bubble_values[$ind] = &format_number($bubble_values[$ind],
$format,$target);
}
return @bubble_values;
}
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,$low);
}
sub get_sigrange {
my ($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);
}
sub start_stringresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
if ($target eq 'meta') {
&Apache::response::start_response($parstack,$safeeval);
$result=&Apache::response::meta_package_write('stringresponse');
&Apache::response::end_response();
} else {
$result.=&start_numericalresponse(@_);
}
return $result;
}
sub end_stringresponse {
return end_numericalresponse(@_);
}
sub start_formularesponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
if ($target eq 'meta') {
&Apache::response::start_response($parstack,$safeeval);
$result=&Apache::response::meta_package_write('formularesponse');
&Apache::response::end_response();
} else {
$result.=&start_numericalresponse(@_);
}
return $result;
}
sub end_formularesponse {
return end_numericalresponse(@_);
}
1;
__END__
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