# The LearningOnline Network with CAPA
# caparesponse definition
#
# $Id: caparesponse.pm,v 1.73 2002/11/25 21:36:42 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_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<br>\n");
&Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
my $expression="&caparesponse_check('".$response."','".
$$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("$expression");
&Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
}
}
}
} elsif ($target eq 'web') {
#$result .= "The correct answer is ".&Apache::run::run("{$$parstack['-1'];".'return $answer}',$safeeval)."\n";
}
#Apache::lonxml::debug("\n<br>\nreal end caparesponse<br>\n");
&Apache::response::end_response;
return '';
}
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);
$result.=&Apache::edit::text_arg('Format:','format',$token,4);
} 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);
}
$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();
}
return $result;
}
sub end_numericalresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ( $target eq 'grade' ) {
if ( 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'];
my $response = $ENV{'form.HWVAL'.$id};
if ( $response =~ /[^\s]/) {
if (!$Apache::lonxml::default_homework_loaded) {
&Apache::lonxml::default_homework_load($safeeval);
}
my %previous = &Apache::response::check_for_previous($response,$partid,$id);
$Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
&Apache::lonxml::debug("submitted a $response<br>\n");
&Apache::lonxml::debug($$parstack[$#$parstack] . "\n<br>");
$response =~ s/\\/\\\\/g;
$response =~ s/\'/\\\'/g;
&Apache::lonxml::debug("current $response");
my $expression="&caparesponse_check_list('".$response."','".
$$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("$expression");
&Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\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,$safeeval);
if ($target eq 'web') {
$result="<br />The correct answer is ";
} elsif ($target eq 'tex') {
$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 ($target eq 'tex') {$formatted=&Apache::lonxml::latex_special_symbols($formatted);}
$result.=$formatted;
}
chop $result;
if ($target eq 'web') {
$result.=" $unit.<br />";
} elsif ($target eq 'tex') {
$result.=&Apache::lonxml::latex_special_symbols($unit);
$result.="}. \\vskip 0 mm ";
}
}
if ($Apache::lonhomework::type eq 'exam') {
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 $number_of_bubbles = 8; #default values for number of bubbles
my @bubbles_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
my $factors_number = 5; #default values for number of factors
my $powers_number = 8; #default values for number of powers
my $symb;
if ($ENV{'form.symb'}=~/___\d+___/) {$symb=$ENV{'form.symb'};} else {$symb=$ENV{'request.symb'};}
my $randomseed = srand(&Apache::lonnet::rndseed($symb,$ENV{'request.course.id'},
$ENV{'user.domain'},$ENV{'user.name'}));
my $ind=1+int(rand()*($factors_number-1));
my $factor = $factors[$ind];
$ind=1+int(rand()*($powers_number-1));
my $power = $powers[$ind];
for ($ind=0;$ind<$number_of_bubbles;$ind++) {
$bubbles_values[$ind] = $answers[0]*$factor**($power-$powers[$powers_number-$ind-1]);
}
my @alphabet = ('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
'Q','R','S','T','U','V','W','X','Y','Z');
if ($target eq 'web') {
my $id=$Apache::inputtags::response[-1];
$result.= '<table border="1"><tr>';
for ($ind=0;$ind<$number_of_bubbles;$ind++) {
my $ans;
if ($formats[0] ne '') {
$ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
} else {
my $badans = $bubbles_values[$ind];
my $format = '';
#What is the number? (integer,decimal,floating point)
if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
$format = 'e'.$2;
} elsif ($badans=~/^(\d*)\.(\d*)$/) {
$format = '4f';
} elsif ($badans=~/^(\d*)$/) {
$format = 'd';
}
$ans = sprintf('%.'.$format,$bubbles_values[$ind]);
}
$result.='<td><input type="radio" name="HWVAL'.$id.'" value="'.$ans.'"><b>'.$alphabet[$ind].'</b>: '.$ans.'</td>';
}
$result.='</tr></table>';
} elsif ($target eq 'tex') {
my $max_val = 0;
if ($formats[0]=~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);
}
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++) {
$result.='\vskip -1 mm \noindent \begin{tabular}{';
for ($ind=0;$ind<$table_range[$j];$ind++) {
$result.='lp{'.$celllength.' mm}';
}
$result.='}';
for ($ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
my $ans;
if ($formats[0] ne '') {
$ans = sprintf('%.'.$formats[0],$bubbles_values[$ind]);
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
}
} else {
my $badans = $bubbles_values[$ind];
my $format = '';
#What is the number? (integer,decimal,floating point)
if ($badans=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
$format = 'e'.$2;
} elsif ($badans=~/^(\d*)\.(\d*)$/) {
$format = '4f';
} elsif ($badans=~/^(\d*)$/) {
$format = 'd';
}
$ans = sprintf('%.'.$format,$bubbles_values[$ind]);
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
}
}
$result.='\hskip -3 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -2 mm & {\small '.$ans.'} ';
if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
}
$cou += $table_range[$j];
$j++;
$result.='\\\\\end{tabular}\vskip 0 mm ';
}
$result.='\end{enumerate}';
&Apache::lonxml::increment_counter();
}
}
} elsif ($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($$tagstack[-1]);
}
for(my $i=0;$i<=$#answers;$i++) {
my $ans=$answers[$i];
my $fmt;
if (@formats) {
if ($#formats) {
$fmt=$formats[$i];
} else {
$fmt=$formats[0];
}
}
my ($high,$low);
if ($Apache::inputtags::params{'tol'}) {
($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
}
my ($sighigh,$siglow);
if ($Apache::inputtags::params{'sig'}) {
($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
}
if ($fmt) {
$ans = sprintf('%.'.$fmt,$ans);
if ($high) {
$high = sprintf('%.'.$fmt,$high); $low = sprintf('%.'.$fmt,$low);
}
}
if ($target eq 'answer') {
if ($high) { $ans.=' ['.$low.','.$high.']'; }
if ($sighigh) { $ans.= " Sig <i>$siglow - $sighigh</i>"; }
$result.=&Apache::response::answer_part($$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"} }, $low);
}
}
}
if ($unit) {
if ($target eq 'answer') {
$result.=&Apache::response::answer_part($$tagstack[-1],
"Unit: <b>$unit</b>");
} elsif ($target eq 'analyze') {
push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} },
$unit);
}
}
if ($type || $token->[1] eq 'stringresponse') {
my $string='Case Insensitive';
if ($type eq 'mc') {
$string='Multiple Choice';
} elsif ($type eq 'cs') {
$string='Case Sensitive';
} elsif ($type eq 'ci') {
$string='Case Insensitive';
} elsif ($type eq 'fml') {
$string='Formula';
}
if ($target eq 'answer') {
$result.=&Apache::response::answer_part($$tagstack[-1],
'<b>'.$string.'</b>');
} elsif ($target eq 'analyze') {
push (@{ $Apache::lonhomework::analyze{"$part_id.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]);
}
}
&Apache::response::end_response;
return $result;
}
sub get_tolrange {
my ($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') {
$result=&Apache::response::meta_package_write('stringresponse');
} 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') {
$result=&Apache::response::meta_package_write('formularesponse');
} else {
$result.=&start_numericalresponse(@_);
}
return $result;
}
sub end_formularesponse {
return end_numericalresponse(@_);
}
1;
__END__
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