--- loncom/homework/response.pm 2001/08/06 18:33:58 1.36
+++ loncom/homework/response.pm 2003/05/23 19:37:33 1.79
@@ -1,76 +1,149 @@
# The LearningOnline Network with CAPA
# various response type definitons response definition
-
+#
+# $Id: response.pm,v 1.79 2003/05/23 19:37:33 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/
+#
# 11/23,11/24,11/28 Gerd Kortemeyer
# Guy Albertelli
-# 08/04 Gerd Kortemeyer
+# 08/04,08/07 Gerd Kortemeyer
package Apache::response;
use strict;
-sub BEGIN {
- &Apache::lonxml::register('Apache::response',('responseparam','caparesponse','numericalresponse','stringresponse','radiobuttonresponse','optionresponse','imageresponse','essayresponse'));
+BEGIN {
+ &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse'));
}
sub start_response {
- my ($parstack,$safeeval)=@_;
- my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
- if ($id eq '') { $id = $Apache::lonxml::curdepth; }
- push (@Apache::inputtags::response,$id);
- push (@Apache::inputtags::responselist,$id);
- @Apache::inputtags::inputlist=();
- return $id;
+ my ($parstack,$safeeval)=@_;
+ my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
+ if ($id eq '') { $id = $Apache::lonxml::curdepth; }
+ if ($#Apache::inputtags::import > -1) {
+ &Apache::lonxml::debug("Turning :$id: into");
+ $id = join('_',@Apache::inputtags::import).'_'.$id;
+ &Apache::lonxml::debug("New :$id:");
+ }
+ push (@Apache::inputtags::response,$id);
+ push (@Apache::inputtags::responselist,$id);
+ @Apache::inputtags::inputlist=();
+ return $id;
}
sub end_response {
- pop @Apache::inputtags::response;
- @Apache::inputtags::inputlist=();
- return '';
+ #pop @Apache::inputtags::response;
+ @Apache::inputtags::inputlist=();
+ return '';
+}
+
+sub start_hintresponse {
+ my ($parstack,$safeeval)=@_;
+ my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
+ if ($id eq '') { $id = $Apache::lonxml::curdepth; }
+ push (@Apache::inputtags::response,$id);
+ push (@Apache::inputtags::responselist,$id);
+ push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
+ return $id;
+}
+
+sub end_hintresponse {
+ pop @Apache::inputtags::response;
+ if (defined($Apache::inputtags::paramstack[-1])) {
+ %Apache::inputtags::params=
+ @{ pop(@Apache::inputtags::paramstack) };
+ }
+ return '';
}
# used by response to set the non-safe space random number generator to something
# that is stable and unique based on the part number and response number
sub setrandomnumber {
- my $rndseed=&Apache::lonnet::rndseed();
- &Apache::lonxml::debug("randseed $rndseed");
-# $rndseed=unpack("%32i",$rndseed);
- $rndseed=$rndseed
- +(&Apache::lonnet::numval($Apache::inputtags::part) << 10);
- if (defined($Apache::inputtags::response['-1'])) {
- $rndseed=$rndseed
- +&Apache::lonnet::numval($Apache::inputtags::response['-1']);
- }
- srand($rndseed);
- &Apache::lonxml::debug("randseed $rndseed");
- return '';
+ my $rndseed;
+ if ($ENV{'request.state'} eq "construct") {
+ $rndseed=$ENV{'form.rndseed'};
+ if (!$rndseed) { $rndseed=time; }
+ } else {
+ $rndseed=&Apache::lonnet::rndseed();
+ }
+ &Apache::lonxml::debug("randseed $rndseed");
+ # $rndseed=unpack("%32i",$rndseed);
+ my $rndmod=(&Apache::lonnet::numval($Apache::inputtags::part) << 10);
+ if (defined($Apache::inputtags::response['-1'])) {
+ $rndmod+=&Apache::lonnet::numval($Apache::inputtags::response[-1]);
+ }
+ if ($rndseed =~/,/) {
+ my ($num1,$num2)=split(/,/,$rndseed);
+ $num1+=$rndmod;
+ $num2+=$rndmod;
+ $rndseed="$num1,$num2";
+ } else {
+ $rndseed+=$rndmod;
+ }
+ &Apache::lonnet::setup_random_from_rndseed($rndseed);
+ &Apache::lonxml::debug("randseed $rndseed");
+ return '';
}
sub meta_parameter_write {
my ($name,$type,$default,$display)=@_;
- return ''
- ."\n";
+ my $partref=$Apache::inputtags::part;
+ my $result=''
+ ."\n";
+ return $result;
}
sub meta_package_write {
my $name=shift;
- return ''
- ."\n";
+ my $result = ''."\n";
+ return $result;
}
sub meta_stores_write {
my ($name,$type,$display)=@_;
- return ''
- ."\n";
+ my $partref=$Apache::inputtags::part;
+ my $result = '\n";
}
sub mandatory_part_meta {
@@ -80,7 +153,7 @@ sub mandatory_part_meta {
# output (to lonspreadsheet)
# of each part
#
- return
+ return
# &meta_parameter_write('opendate','date_start','',
# 'Opening Date').
# &meta_parameter_write('duedate','date_end','',
@@ -91,13 +164,13 @@ sub mandatory_part_meta {
# 'Available Points').
# &meta_parameter_write('maxtries','int_pos','',
# 'Maximum Number of Tries').
- &meta_package_write('part');
- &meta_stores_write('solved','string',
- 'Problem Status').
- &meta_stores_write('tries','int_zeropos',
- 'Number of Attempts').
- &meta_stores_write('awarded','float',
- 'Partial Credit Factor');
+ &meta_package_write('part').
+ &meta_stores_write('solved','string',
+ 'Problem Status').
+ &meta_stores_write('tries','int_zeropos',
+ 'Number of Attempts').
+ &meta_stores_write('awarded','float',
+ 'Partial Credit Factor');
#
# Note: responseid-specific data 'submission' and 'awarddetail'
# not available to spreadsheet -> skip here
@@ -105,134 +178,348 @@ sub mandatory_part_meta {
}
sub check_for_previous {
- my ($curresponse,$partid,$id) = @_;
- my %previous;
- $previous{'used'} = 0;
- foreach my $key (reverse(sort(keys(%Apache::lonhomework::history)))) {
- if ($key =~ /resource\.$partid\.$id\.submission/) {
- &Apache::lonxml::debug("Trying $key");
- my $pastresponse=$Apache::lonhomework::history{$key};
- if ($pastresponse eq $curresponse) {
- $previous{'used'} = 1;
- my $history;
- if ( $key =~ /^(\d+):/ ) {
- $history=$1;
- $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
- $previous{'last'}='0';
- } else {
- $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
- $previous{'last'}='1';
- }
- if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
- &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
- last;
- }
- }
- }
- return %previous;
-}
-
-sub start_caparesponse {
- require Apache::caparesponse;
- import Apache::caparesponse;
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-# print "\n
\nsimple caparesponse\n";
- return &Apache::caparesponse::start_caparesponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
-}
-
-sub start_stringresponse {
- require Apache::caparesponse;
- import Apache::caparesponse;
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- return &Apache::caparesponse::start_stringresponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
-}
-
-sub start_numericalresponse {
- require Apache::caparesponse;
- import Apache::caparesponse;
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- return &Apache::caparesponse::start_numericalresponse
- ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
-}
-
-sub start_radiobuttonresponse {
- require Apache::radiobuttonresponse;
- import Apache::radiobuttonresponse;
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- return &Apache::radiobuttonresponse::start_radiobuttonresponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
-}
-
-sub start_optionresponse {
- require Apache::optionresponse;
- import Apache::optionresponse;
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- return &Apache::optionresponse::start_optionresponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
-}
-
-sub start_imageresponse {
- require Apache::imageresponse;
- import Apache::imageresponse;
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- return &Apache::imageresponse::start_imageresponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
-}
-
-sub start_essayresponse {
- require Apache::essayresponse;
- import Apache::essayresponse;
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- return &Apache::essayresponse::start_essayresponse($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
+ my ($curresponse,$partid,$id) = @_;
+ my %previous;
+ $previous{'used'} = 0;
+ foreach my $key (sort(keys(%Apache::lonhomework::history))) {
+ if ($key =~ /resource\.$partid\.$id\.submission/) {
+ &Apache::lonxml::debug("Trying $key");
+ my $pastresponse=$Apache::lonhomework::history{$key};
+ if ($pastresponse eq $curresponse) {
+ $previous{'used'} = 1;
+ my $history;
+ if ( $key =~ /^(\d+):/ ) {
+ $history=$1;
+ $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
+ $previous{'last'}='0';
+ push(@{ $previous{'version'} },$history);
+ } else {
+ $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
+ $previous{'last'}='1';
+ }
+ if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
+ &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
+ }
+ }
+ }
+ &Apache::lonhomework::showhash(%previous);
+ return %previous;
}
-sub start_responseparam {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- if ($target eq 'grade' || $target eq 'web') {
- my $default= &Apache::lonxml::get_param('default',$parstack,$safeeval);
- my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
- &Apache::lonxml::debug("looking for resource.$Apache::inputtags::part.$name");
- my $value = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.$name");
- &Apache::lonxml::debug("$name has value :$value: and default :$default:");
- if ($value eq '' || $value eq 'con_lost') {
- &Apache::lonxml::debug("defaulting");
- $Apache::inputtags::params{$name}=$default;
- } else {
- &Apache::lonxml::debug("using value");
- $Apache::inputtags::params{$name}=$value;
+sub handle_previous {
+ my ($previous,$ad)=@_;
+ if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
+ if ($$previous{'last'}) {
+ push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
+ } else {
+ push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
+ }
+ push(@Apache::inputtags::previous_version,$$previous{'version'});
+ }
+}
+
+sub view_or_modify {
+ my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+ my $myself=0;
+ if ( ($name eq $ENV{'user.name'}) && ($domain eq $ENV{'user.domain'}) ) {
+ $myself=1;
}
+ my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
+ my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
+ if ($mgr) { return "M"; }
+ if ($vgr) { return "V"; }
+ if ($myself) { return "V"; }
return '';
- } elsif ($target eq 'meta') {
- return &meta_parameter_write($token->[2]->{'name'},
- $token->[2]->{'type'},
- $token->[2]->{'default'},
- $token->[2]->{'description'});
- } elsif ($target eq 'edit') {
- my $result.=&Apache::edit::tag_start($target,$token,&Apache::lonxml::description($token));
- $result.=&Apache::edit::text_arg('Name:','name',$token).
- &Apache::edit::text_arg('Type:','type',$token).
- &Apache::edit::text_arg('Description:','description',$token).
- &Apache::edit::text_arg('Default:','default',$token).
- "";
- $result.=&Apache::edit::end_table;
+}
+
+sub start_dataresponse {
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+ my $id = &Apache::response::start_response($parstack,$safeeval);
+ my $result;
+ if ($target eq 'web') {
+ $result = $token->[2]->{'display'}.':';
+ } elsif ($target eq 'meta') {
+ $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
+ $token->[2]->{'type'},
+ $token->[2]->{'display'});
+ $result .= &Apache::response::meta_package_write('dataresponse');
+ }
return $result;
- } elsif ($target eq 'modified') {
+}
+
+sub end_dataresponse {
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result;
- my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
- 'name','type','description',
- 'default');
- if ($constructtag) {
- $result = &Apache::edit::rebuild_tag($token);
- $result.=&Apache::edit::handle_insert();
+ if ( $target eq 'web' ) {
+ } elsif ($target eq 'grade' ) {
+ if ( defined $ENV{'form.submitted'}) {
+ my ($symb,$courseid,$domain,$name)=&Apache::lonxml::whichuser();
+ my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
+ if ($allowed) {
+ &Apache::response::setup_params('dataresponse');
+ my $partid = $Apache::inputtags::part;
+ my $id = $Apache::inputtags::response['-1'];
+ my $response = $ENV{'form.HWVAL_'.$id};
+ my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
+ if ( $response =~ /[^\s]/) {
+ $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
+ $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
+ $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
+ }
+ } else {
+ $result='Not Permitted to change values.'
+ }
+ }
}
+ &Apache::response::end_response;
return $result;
+}
- } else {
- return '';
- }
+sub start_responseparam {
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+ my $result='';
+ if ($target eq 'meta') {
+ $result = &meta_parameter_write($token->[2]->{'name'},
+ $token->[2]->{'type'},
+ $token->[2]->{'default'},
+ $token->[2]->{'description'});
+ } elsif ($target eq 'edit') {
+ $result.=&Apache::edit::tag_start($target,$token);
+ $result.=&Apache::edit::text_arg('Name:','name',$token).
+ &Apache::edit::text_arg('Type:','type',$token).
+ &Apache::edit::text_arg('Description:','description',$token).
+ &Apache::edit::text_arg('Default:','default',$token).
+ "";
+ $result.=&Apache::edit::end_table;
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
+ 'name','type','description',
+ 'default');
+ if ($constructtag) {
+ $result = &Apache::edit::rebuild_tag($token);
+ $result.=&Apache::edit::handle_insert();
+ }
+ } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
+ $target eq 'tex' || $target eq 'analyze' ) {
+ if ($ENV{'request.state'} eq 'construct') {
+ my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
+ my $default=&Apache::lonxml::get_param('default',$parstack,
+ $safeeval);
+ if ($name) {$Apache::inputtags::params{$name}=$default;}
+ }
+ }
+ return $result;
}
sub end_responseparam {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- if ($target eq 'edit') { return ('','no'); }
- return '';
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+ if ($target eq 'edit') { return ('','no'); }
+ return '';
+}
+
+sub start_parameter {
+ my $result = &start_responseparam(@_);
+ return $result;
+}
+
+sub end_parameter {
+ my $result = &end_responseparam(@_);
+ return $result;
+}
+
+sub reset_params {
+ %Apache::inputtags::params=();
+}
+
+sub setup_params {
+ my ($tag) = @_;
+
+ if ($ENV{'request.state'} eq 'construct') { return; }
+ my %paramlist=();
+ foreach my $key (keys(%Apache::lonnet::packagetab)) {
+ if ($key =~ /^$tag/) {
+ my ($package,$name) = split(/&/,$key);
+ $paramlist{$name}=1;
+ }
+ }
+ foreach my $key (keys(%paramlist)) {
+ my $entry= 'resource.'.$Apache::inputtags::part;
+ if (defined($Apache::inputtags::response[-1])) {
+ $entry.='_'.$Apache::inputtags::response[-1];
+ }
+ $entry.='.'.$key;
+ &Apache::lonxml::debug("looking for $entry");
+ my $value = &Apache::lonnet::EXT("$entry");
+ &Apache::lonxml::debug("$key has value :$value:");
+ if ($value eq 'con_lost' || $value =~ /^error:/) {
+ &Apache::lonxml::debug("using nothing");
+ $Apache::inputtags::params{$key}='';
+ } else {
+ &Apache::lonxml::debug("using value");
+ $Apache::inputtags::params{$key}=$value;
+ }
+ }
+}
+
+sub answer_header {
+ my ($type) = @_;
+ my $result;
+ if ($ENV{'form.answer_output_mode'} eq 'tex') {
+ $result = ' \vskip 0 mm \begin{tabular}{|c|}\hline Answer for Part: '.
+ $Apache::inputtags::part.' \\\\ \hline ';
+ } else {
+ if ($type eq 'optionresponse' || $type eq 'radiobuttonresponse' ) {
+ $result = '
Answer for Part:'.
+ $Apache::inputtags::part. ' |
---|
'."\n";
+ } else {
+ $result = 'Answer for Part:'.
+ $Apache::inputtags::part. ' | '."\n";
+ }
+ }
+ return $result;
+}
+
+sub answer_part {
+ my ($type,$answer) = @_;
+ my $result;
+ if ($ENV{'form.answer_output_mode'} eq 'tex') {
+ $result = ' '.$answer.'\\\\ \hline ';
+ } else {
+ if ($type eq 'optionresponse' || $type eq 'radiobuttonresponse') {
+ $result = ''.$answer.' | ';
+ } else {
+ $result = ''.$answer.' | ';
+ }
+ }
+ return $result;
+}
+
+sub answer_footer {
+ my ($type) = @_;
+ my $result;
+ if ($ENV{'form.answer_output_mode'} eq 'tex') {
+ $result = ' \end{tabular} \vskip 0 mm ';
+ } else {
+ if ($type eq 'optionresponse' || $type eq 'radiobuttonresponse') {
+ $result = '
';
+ } else {
+ $result = '
';
+ }
+ }
+ return $result;
+}
+
+sub showallfoils {
+ my $return=0;
+ if (defined($ENV{'form.showallfoils'}) &&
+ $ENV{'request.state'} eq 'construct') {
+ $return=1;
+ }
+ return $return;
+}
+
+sub getresponse {
+ my ($temp)=@_;
+ my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
+ my $response;
+ if (!defined($temp)) {
+ $temp=1;
+ } else {
+ $formparm.=":$temp";
+ }
+ my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
+ 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
+ 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
+ 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
+ if ($ENV{'form.submitted'} eq 'scantron') {
+ my $part = $Apache::inputtags::part;
+ my $id = $Apache::inputtags::response[-1];
+ $response = $ENV{'scantron.'.($Apache::lonxml::counter+$temp-1).
+ '.answer'};
+ # save bubbled letter for later
+ $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
+ $response;
+ $response = $let_to_num{$response};
+ } else {
+ $response = $ENV{$formparm};
+ }
+ return $response;
+}
+
+sub repetition {
+ my $id = $Apache::inputtags::part;
+ my $weight = &Apache::lonnet::EXT("resource.$id.weight");
+ my $repetition = int $weight/9;
+ if ($weight % 9 != 0) {$repetition++;}
+ return $repetition;
+}
+
+sub scored_response {
+ my ($part,$id)=@_;
+ my $repetition=&repetition();
+ my $score=0;
+ for (my $i=0;$i<$repetition;$i++) {
+ my $increase=&Apache::response::getresponse($i+1);
+ if ($increase ne '') { $score+=$increase+1; }
+ }
+ my $weight = &Apache::lonnet::EXT("resource.$part.weight");
+ my $pcr=$score/$weight;
+ $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
+ $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
+ 'ASSIGNED_SCORE';
+ return $repetition;
+}
+
+sub whichorder {
+ my ($max,$randomize,$showall,$hash)=@_;
+ #&Apache::lonxml::debug("man $max randomize $randomize");
+ if (!defined(@{ $$hash{'names'} })) { return; }
+ my @names = @{ $$hash{'names'} };
+ my @whichopt =();
+ my (%top,@toplist,%bottom,@bottomlist);
+ if (!($showall || ($randomize eq 'no'))) {
+ my $current=0;
+ foreach my $name (@names) {
+ $current++;
+ if ($$hash{"$name.location"} eq 'top') {
+ $top{$name}=$current;
+ } elsif ($$hash{"$name.location"} eq 'bottom') {
+ $bottom{$name}=$current;
+ }
+ }
+ }
+ my $topcount=0;
+ my $bottomcount=0;
+ while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
+ && ($#names > -1)) {
+ #&Apache::lonxml::debug("Have $#whichopt max is $max");
+ my $aopt;
+ if ($showall || ($randomize eq 'no')) {
+ $aopt=0;
+ } else {
+ $aopt=int(&Math::Random::random_uniform() * ($#names+1));
+ }
+ #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
+ $aopt=splice(@names,$aopt,1);
+ #&Apache::lonxml::debug("Picked $aopt");
+ if ($top{$aopt}) {
+ $toplist[$top{$aopt}]=$aopt;
+ $topcount++;
+ } elsif ($bottom{$aopt}) {
+ $bottomlist[$bottom{$aopt}]=$aopt;
+ $bottomcount++;
+ } else {
+ push (@whichopt,$aopt);
+ }
+ }
+ for (my $i=0;$i<=$#toplist;$i++) {
+ if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
+ }
+ for (my $i=0;$i<=$#bottomlist;$i++) {
+ if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
+ }
+
+ return @whichopt;
}
1;