[BACK]Return to radiobuttonresponse.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / homework

Diff for /loncom/homework/radiobuttonresponse.pm between versions 1.153.6.9 and 1.154

version 1.153.6.9, 2012/02/04 20:40:07 version 1.154, 2012/01/20 13:26:34
Line 25 Line 25
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
   
   
   
 package Apache::radiobuttonresponse;  package Apache::radiobuttonresponse;
 use strict;  use strict;
 use HTML::Entities();  use HTML::Entities();
 use Apache::lonlocal;  use Apache::lonlocal;
 use Apache::lonnet;  use Apache::lonnet;
 use Apache::response;  use Apache::response;
 use Apache::caparesponse;  
   
 my $default_bubbles_per_line = 10;  my $default_bubbles_per_line = 10;
 my @alphabet      = ( 'A' .. 'Z' ); # Foil labels.  
   
   
   
 BEGIN {  BEGIN {
     &Apache::lonxml::register( 'Apache::radiobuttonresponse',      &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
         ('radiobuttonresponse') );  
 }  }
   
 sub bubble_line_count {  sub bubble_line_count {
     my ( $numfoils, $bubbles_per_line ) = @_;      my ($numfoils, $bubbles_per_line) = @_;
     my $bubble_lines;      my $bubble_lines;
     $bubble_lines = int( $numfoils / $bubbles_per_line );      $bubble_lines = int($numfoils / $bubbles_per_line);
     if ( ( $numfoils % $bubbles_per_line ) != 0 ) {      if (($numfoils % $bubbles_per_line) != 0) {
         $bubble_lines++;   $bubble_lines++;
     }      }
     return $bubble_lines;      return $bubble_lines;
       
 }  }
   
   
 sub start_radiobuttonresponse {  sub start_radiobuttonresponse {
     my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) =      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       @_;  
     my $result;      my $result;
   
     #when in a radiobutton response use these      #when in a radiobutton response use these
     &Apache::lonxml::register( 'Apache::radiobuttonresponse',      &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
         ( 'foilgroup', 'foil', 'conceptgroup' ) );      push (@Apache::lonxml::namespace,'radiobuttonresponse');
     push( @Apache::lonxml::namespace, 'radiobuttonresponse' );      my $id = &Apache::response::start_response($parstack,$safeeval);
     my $id = &Apache::response::start_response( $parstack, $safeeval );  
   
     %Apache::hint::radiobutton = ();      %Apache::hint::radiobutton=();
     undef(%Apache::response::foilnames);      undef(%Apache::response::foilnames);
     if ( $target eq 'meta' ) {      if ($target eq 'meta') {
         $result = &Apache::response::meta_package_write('radiobuttonresponse');   $result=&Apache::response::meta_package_write('radiobuttonresponse');
     }      } elsif ($target eq 'edit' ) {
     elsif ( $target eq 'edit' ) {   $result.=&Apache::edit::start_table($token)
         $result .=             .'<tr><td>'.&Apache::lonxml::description($token)
             &Apache::edit::start_table($token)             .&Apache::loncommon::help_open_topic('Radio_Response_Problems')
           . '<tr><td>'             .'</td>'
           . &Apache::lonxml::description($token)             .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
           . &Apache::loncommon::help_open_topic('Radio_Response_Problems')             .&Apache::edit::deletelist($target,$token)
           . '</td>'             .'</span></td>'
           . '<td><span class="LC_nobreak">'             .'<td>&nbsp;'.&Apache::edit::end_row()
           . &mt('Delete?') . ' '             .&Apache::edit::start_spanning_row();
           . &Apache::edit::deletelist( $target, $token )   $result.=
           . '</span></td>'      &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
           . '<td>&nbsp;'      $token,'4').'&nbsp;'x 3 .
           . &Apache::edit::end_row()      &Apache::edit::select_arg('Randomize Foil Order:','randomize',
           . &Apache::edit::start_spanning_row();        ['yes','no'],$token).'&nbsp;'x 3 .
         $result .= &Apache::edit::text_arg( 'Max Number Of Shown Foils:',      &Apache::edit::select_arg('Display Direction:','direction',
             'max', $token, '4' )        ['vertical','horizontal'],$token).
           . '&nbsp;' x 3        &Apache::edit::end_row().
           . &Apache::edit::select_arg( 'Randomize Foil Order:',        &Apache::edit::start_spanning_row()."\n";
             'randomize', [ 'yes', 'no' ], $token )      } elsif ($target eq 'modified') {
           . '&nbsp;' x 3   my $constructtag=&Apache::edit::get_new_args($token,$parstack,
           . &Apache::edit::select_arg(       $safeeval,'max',
             'Display Direction:', 'direction',       'randomize','direction');
             [ 'vertical', 'horizontal' ], $token   if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
           )      } elsif ($target eq 'tex') {
           . &Apache::edit::end_row()   my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,
           . &Apache::edit::start_spanning_row() . "\n";      undef,0);
     }   if ($type eq '1') {
     elsif ( $target eq 'modified' ) {      $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
         my $constructtag =   } elsif ($type eq 'A') {
           &Apache::edit::get_new_args( $token, $parstack, $safeeval, 'max',      $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
             'randomize', 'direction' );   } elsif ($type eq 'a') {
         if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }      $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
     }   } elsif ($type eq 'i') {
     elsif ( $target eq 'tex' ) {      $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
         my $type =   } else {
           &Apache::lonxml::get_param( 'TeXtype', $parstack, $safeeval, undef,      $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
             0 );   }
         if ( $type eq '1' ) {          if($env{'form.pdfFormFields'} eq 'yes' && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
             $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';              $result .= '\begin{itemize}';
         }          } else {
         elsif ( $type eq 'A' ) {              $result .= '\begin{enumerate}';
             $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';  
         }  
         elsif ( $type eq 'a' ) {  
             $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';  
         }  
         elsif ( $type eq 'i' ) {  
             $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';  
         }  
         else {  
             $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';  
         }          }
       } elsif ($target eq 'analyze') {
     }   my $part_id="$Apache::inputtags::part.$id";
     elsif ( $target eq 'analyze' ) {  
         my $part_id = "$Apache::inputtags::part.$id";  
         $Apache::lonhomework::analyze{"$part_id.type"} = 'radiobuttonresponse';          $Apache::lonhomework::analyze{"$part_id.type"} = 'radiobuttonresponse';
         push( @{ $Apache::lonhomework::analyze{"parts"} }, $part_id );   push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
     }      }
     return $result;      return $result;
 }  }
   
 sub end_radiobuttonresponse {  sub end_radiobuttonresponse {
     my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) =      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       @_;  
     my $result;      my $result;
     if ( $target eq 'edit' ) { $result = &Apache::edit::end_table(); }      if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
       if ($target eq 'tex' ) {
           if($env{'form.pdfFormFields'} eq 'yes' and $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
               $result .= '\end{itemize}';
           } else {
               $result .= '\end{enumerate}';
           }
       }
     &Apache::response::end_response;      &Apache::response::end_response;
     pop @Apache::lonxml::namespace;      pop @Apache::lonxml::namespace;
     &Apache::lonxml::deregister( 'Apache::radiobuttonresponse',      &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
         ( 'foilgroup', 'foil', 'conceptgroup' ) );  
     undef(%Apache::response::foilnames);      undef(%Apache::response::foilnames);
     return $result;      return $result;
 }  }
   
 %Apache::response::foilgroup = ();  %Apache::response::foilgroup=();
   
 sub start_foilgroup {  sub start_foilgroup {
     my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) =      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       @_;      %Apache::response::foilgroup=();
     %Apache::response::foilgroup               = ();      $Apache::radiobuttonresponse::conceptgroup=0;
     $Apache::radiobuttonresponse::conceptgroup = 0;      &Apache::response::pushrandomnumber(undef,$target);
     &Apache::response::pushrandomnumber( undef, $target );  
     return;      return;
 }  }
   
 sub storesurvey {  sub storesurvey {
     my ($style) = @_;      my ($style) = @_;
     if ( !&Apache::response::submitted() ) { return ''; }      if ( !&Apache::response::submitted() ) { return ''; }
     my $response = $env{ 'form.HWVAL_' . $Apache::inputtags::response['-1'] };      my $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
     &Apache::lonxml::debug("Here I am!:$response:");      &Apache::lonxml::debug("Here I am!:$response:");
     if ( $response !~ /[0-9]+/ ) { return ''; }      if ( $response !~ /[0-9]+/) { return ''; }
     my $part       = $Apache::inputtags::part;      my $part = $Apache::inputtags::part;
     my $id         = $Apache::inputtags::response['-1'];      my $id = $Apache::inputtags::response['-1'];
     my @whichfoils = @{ $Apache::response::foilgroup{'names'} };      my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
     my %responsehash;      my %responsehash;
     $responsehash{ $whichfoils[$response] } = $response;      $responsehash{$whichfoils[$response]}=$response;
     my $responsestr = &Apache::lonnet::hash2str(%responsehash);      my $responsestr=&Apache::lonnet::hash2str(%responsehash);
     $Apache::lonhomework::results{"resource.$part.$id.submission"} =      $Apache::lonhomework::results{"resource.$part.$id.submission"}=
       $responsestr;   $responsestr;
     my %previous =      my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
       &Apache::response::check_for_previous( $responsestr, $part, $id );  
     my $ad;      my $ad;
       if ($style eq 'anonsurvey') {
     if ( $style eq 'anonsurvey' ) {          $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS';
         $ad = $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} =      } elsif ($style eq 'anonsurveycred') {
           'ANONYMOUS';          $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS_CREDIT';
     }      } elsif ($style eq 'surveycred') {
     elsif ( $style eq 'anonsurveycred' ) {          $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED_CREDIT';
         $ad = $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} =      } else {
           'ANONYMOUS_CREDIT';          $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
     }  
     elsif ( $style eq 'surveycred' ) {  
         $ad = $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} =  
           'SUBMITTED_CREDIT';  
     }  
     else {  
         $ad = $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} =  
           'SUBMITTED';  
     }      }
     &Apache::response::handle_previous( \%previous, $ad );      &Apache::response::handle_previous(\%previous,$ad);
     &Apache::lonxml::debug("submitted a $response<br />\n");      &Apache::lonxml::debug("submitted a $response<br />\n");
     return '';      return '';
 }  }
   
   
 sub grade_response {  sub grade_response {
     my ( $answer, $whichfoils, $bubbles_per_line ) = @_;      my ($answer, $whichfoils, $bubbles_per_line)=@_;
   
     if ( !&Apache::response::submitted() ) { return; }      if ( !&Apache::response::submitted() ) { return; }
     my $response;      my $response;
       
       if ($env{'form.submitted'} eq 'scantron') {
    $response = &Apache::response::getresponse(1,undef,
      &bubble_line_count(scalar(@{ $whichfoils}),
         $bubbles_per_line),
      $bubbles_per_line);
   
     if ( $env{'form.submitted'} eq 'scantron' ) {      } else {
         $response =   $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
           &Apache::response::getresponse( 1, undef,  
             &bubble_line_count( scalar( @{$whichfoils} ), $bubbles_per_line ),  
             $bubbles_per_line );  
   
     }  
     else {  
         $response = $env{ 'form.HWVAL_' . $Apache::inputtags::response['-1'] };  
     }      }
   
     if ( $response !~ /[0-9]+/ ) { return; }  
     my $part = $Apache::inputtags::part;      if ( $response !~ /[0-9]+/) { return; }
     my $id   = $Apache::inputtags::response['-1'];      my $part=$Apache::inputtags::part;
       my $id = $Apache::inputtags::response['-1'];
     my %responsehash;      my %responsehash;
     $responsehash{ $whichfoils->[$response] } = $response;      $responsehash{$whichfoils->[$response]}=$response;
     my $responsestr = &Apache::lonnet::hash2str(%responsehash);      my $responsestr=&Apache::lonnet::hash2str(%responsehash);
     my %previous =      my %previous=&Apache::response::check_for_previous($responsestr,
       &Apache::response::check_for_previous( $responsestr, $part, $id );         $part,$id);
     $Apache::lonhomework::results{"resource.$part.$id.submission"} =      $Apache::lonhomework::results{"resource.$part.$id.submission"}=
       $responsestr;   $responsestr;
     &Apache::lonxml::debug("submitted a $response<br />\n");      &Apache::lonxml::debug("submitted a $response<br />\n");
     my $ad;      my $ad;
       if ($response == $answer) {
     if ( $response == $answer ) {   $ad='EXACT_ANS';
         $ad = 'EXACT_ANS';      } else {
     }   $ad='INCORRECT';
     else {  
         $ad = 'INCORRECT';  
     }      }
     $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} = $ad;      $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
     &Apache::response::handle_previous( \%previous, $ad );      &Apache::response::handle_previous(\%previous,$ad);
 }  }
   
 sub end_foilgroup {  sub end_foilgroup {
     my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) =      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       @_;  
   
     my $result;      my $result;
     my $bubble_lines;      my $bubble_lines;
     my $answer_count;      my $answer_count;
     my $id               = $Apache::inputtags::response['-1'];      my $id   = $Apache::inputtags::response['-1'];
     my $part             = $Apache::inputtags::part;      my $part = $Apache::inputtags::part;
     my $bubbles_per_line = &getbubblesnum( $part, $id );      my $bubbles_per_line = &getbubblesnum($part,$id);
   
   
     if (   $target eq 'grade'  
         || $target eq 'web'  
         || $target eq 'answer'  
         || $target eq 'tex'  
         || $target eq 'analyze' )  
     {  
         my $style = $Apache::lonhomework::type;  
         my $direction =  
           &Apache::lonxml::get_param( 'direction', $parstack, $safeeval, '-2' );  
         if (  
             (  
                    ( $style eq 'survey' )  
                 || ( $style eq 'surveycred' )  
                 || ( $style eq 'anonsurvey' )  
                 || ( $style eq 'anonsurveycred' )  
             )  
             && ( $target ne 'analyze' )  
           )  
         {  
             if ( $target eq 'web' || $target eq 'tex' ) {  
                 $result = &displayallfoils( $direction, $target );  
             }  
             elsif ( $target eq 'answer' ) {  
                 $result = &displayallanswers();  
             }  
             elsif ( $target eq 'grade' ) {  
                 $result = &storesurvey($style);  
             }  
             $answer_count =  
               scalar( @{ $Apache::response::foilgroup{'names'} } );  
   
         }      if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
         else {   $target eq 'tex' || $target eq 'analyze') {
    my $style = $Apache::lonhomework::type;
    my $direction = &Apache::lonxml::get_param('direction',$parstack,
      $safeeval,'-2');
    if ( (($style eq 'survey') || ($style eq 'surveycred') || 
                 ($style eq 'anonsurvey') || ($style eq 'anonsurveycred')) 
                && ($target ne 'analyze')) {
       if ($target eq 'web' || $target eq 'tex') {
    $result=&displayallfoils($direction, $target);
       } elsif ( $target eq 'answer' ) {
    $result=&displayallanswers();
       } elsif ( $target eq 'grade' ) {
    $result=&storesurvey($style);
       }
       $answer_count = scalar(@{$Apache::response::foilgroup{'names'}});
   
             my $name;   } else {
             my $max =  
               &Apache::lonxml::get_param( 'max', $parstack, $safeeval, '-2' );  
             my $randomize =  
               &Apache::lonxml::get_param( 'randomize', $parstack, $safeeval,  
                 '-2' );  
             my ( $answer, @shown ) = &whichfoils( $max, $randomize );  
             $answer_count = scalar(@shown);  
   
             if ( $target eq 'web' || $target eq 'tex' ) {  
                 $result =  
                   &displayfoils( $target, $answer, \@shown, $direction,  
                     $bubbles_per_line );  
             }  
             elsif ( $target eq 'answer' ) {  
                 $result =  
                   &displayanswers( $answer, \@shown, $bubbles_per_line );  
             }  
             elsif ( $target eq 'grade' ) {  
                 &grade_response( $answer, \@shown, $bubbles_per_line );  
             }  
             elsif ( $target eq 'analyze' ) {  
                 my $bubble_lines =  
                   &bubble_line_count( $answer_count, $bubbles_per_line );  
                 &Apache::response::analyze_store_foilgroup( \@shown,  
                     [ 'text', 'value', 'location' ] );  
                 my $part_id = "$part.$id";  
                 push(  
                     @{ $Apache::lonhomework::analyze{"$part_id.options"} },  
                     ( 'true', 'false' )  
                 );  
   
             }      my $name;
         }      my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
         $Apache::lonxml::post_evaluate = 0;   '-2');
       my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
          $safeeval,'-2');
       my ($answer, @shown) = &whichfoils($max, $randomize);
       $answer_count = scalar(@shown);
   
       if ($target eq 'web' || $target eq 'tex') {
                   $result=&displayfoils($target,
         $answer, \@shown,
         $direction,
         $bubbles_per_line);
       } elsif ($target eq 'answer' ) {
    $result=&displayanswers($answer, \@shown, $bubbles_per_line);
       } elsif ( $target eq 'grade') {
    &grade_response($answer, \@shown, $bubbles_per_line);
       }  elsif ( $target eq 'analyze') {
    my $bubble_lines = &bubble_line_count($answer_count, 
         $bubbles_per_line);
    &Apache::response::analyze_store_foilgroup(\@shown,
      ['text','value','location']);
    my $part_id="$part.$id";
    push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
         ('true','false'));
   
       }
    }
    $Apache::lonxml::post_evaluate=0;
     }      }
     if ( $target eq 'web' ) {      if ($target eq 'web') {
         &Apache::response::setup_prior_tries_hash( \&format_prior_answer,   &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
             [ \%Apache::response::foilgroup ] );    [\%Apache::response::foilgroup]);
     }      }
     &Apache::response::poprandomnumber();      &Apache::response::poprandomnumber();
     $bubble_lines = &bubble_line_count( $answer_count, $bubbles_per_line );      $bubble_lines = &bubble_line_count($answer_count, $bubbles_per_line);
     &Apache::lonxml::increment_counter( $bubble_lines, "$part.$id" );      &Apache::lonxml::increment_counter($bubble_lines,
     if ( $target eq 'analyze' ) {         "$part.$id");
         &Apache::lonhomework::set_bubble_lines();      if ($target eq 'analyze') {
    &Apache::lonhomework::set_bubble_lines();
     }      }
     return $result;      return $result;
 }  }
   
 sub getbubblesnum {  sub getbubblesnum {
     my ( $part, $id ) = @_;      my ($part,$id) = @_;
     my $bubbles_per_line;      my $bubbles_per_line;
     my $default_numbubbles = $default_bubbles_per_line;      my $default_numbubbles = $default_bubbles_per_line;
     if (   ( $env{'form.bubbles_per_row'} =~ /^\d+$/ )      if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
         && ( $env{'form.bubbles_per_row'} > 0 ) )          ($env{'form.bubbles_per_row'} > 0)) {
     {  
         $default_numbubbles = $env{'form.bubbles_per_row'};          $default_numbubbles = $env{'form.bubbles_per_row'};
     }      }
     $bubbles_per_line = &Apache::response::get_response_param( $part . "_$id",      $bubbles_per_line =
         'numbubbles', $default_numbubbles );          &Apache::response::get_response_param($part."_$id",'numbubbles',
                                                 $default_numbubbles);
     return $bubbles_per_line;      return $bubbles_per_line;
 }  }
   
 sub getfoilcounts {  sub getfoilcounts {
     my @names;      my @names;
     my $truecnt  = 0;      my $truecnt=0;
     my $falsecnt = 0;      my $falsecnt=0;
     my $name;      my $name;
     if ( $Apache::response::foilgroup{'names'} ) {      if ( $Apache::response::foilgroup{'names'} ) {
         @names = @{ $Apache::response::foilgroup{'names'} };   @names= @{ $Apache::response::foilgroup{'names'} };
     }      }
     foreach $name (@names) {      foreach $name (@names) {
         if ( $Apache::response::foilgroup{ $name . '.value' } eq 'true' ) {   if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
             $truecnt++;      $truecnt++;
         }   } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
         elsif ( $Apache::response::foilgroup{ $name . '.value' } eq 'false' ) {      $falsecnt++;
             $falsecnt++;   }
         }  
     }      }
     return ( $truecnt, $falsecnt );      return ($truecnt,$falsecnt);
 }  }
   
 sub format_prior_answer {  sub format_prior_answer {
     my ( $mode, $answer, $other_data ) = @_;      my ($mode,$answer,$other_data) = @_;
     my $foil_data = $other_data->[0];      my $foil_data = $other_data->[0];
     my %response  = &Apache::lonnet::str2hash($answer);      my %response = &Apache::lonnet::str2hash($answer);
     my ($name)    = keys(%response);      my ($name)   = keys(%response);
     return      return '<span class="LC_prior_radiobutton">'.
         '<span class="LC_prior_radiobutton">'   $foil_data->{$name.'.text'}.'</span>';
       . $foil_data->{ $name . '.text' }  
       . '</span>';  
   
 }  }
   
 ##   sub displayallfoils {
 # Return the last survey response.  The logic is slightly different than that of       my ($direction, $target)=@_;
 # get_last_responses.  TODO: See if there are chunks of code betweenthis and      my $result;
 # get_last_reponses that are common and can be factored.      &Apache::lonxml::debug("survey style display");
 #      my @names;
 # @param $part - Problem part under consideration.      if ( $Apache::response::foilgroup{'names'} ) {
 # @param $showanswer - True if answers should be shown.   @names= @{ $Apache::response::foilgroup{'names'} };
 # @param $id         - Problem id.      }
 #  
 # @return hash reference.  
 # @retval reference to the has indexed by answer selection that   
 #         indicates the most recent answer.  
 #  
 sub get_last_survey_response {  
     my ($part, $showanswer, $id) = @_;  
   
     my $newvariation;  
     my $lastresponse; # stringified last response.  
   
     if (      my $temp=0;
         (      my $i   =0;
             (      my $id=$Apache::inputtags::response['-1'];
                 $Apache::lonhomework::history{"resource.$part.type"} eq      my $part=$Apache::inputtags::part;
                 'randomizetry'      my ($lastresponse,$newvariation,$showanswer);
             )      if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
             || ( $Apache::lonhomework::type eq 'randomizetry' )          ($Apache::lonhomework::type eq 'randomizetry')) &&
         )          ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
         && ( $Apache::inputtags::status[-1] eq 'CAN_ANSWER' )          if ($env{'form.'.$part.'.rndseed'} ne
       )              $Apache::lonhomework::history{"resource.$part.rndseed"}) {
     {  
         if ( $env{ 'form.' . $part . '.rndseed' } ne  
             $Apache::lonhomework::history{"resource.$part.rndseed"} )  
         {  
             $newvariation = 1;              $newvariation = 1;
         }          }
     }      }
     unless (      $showanswer = &Apache::response::show_answer();
         (      unless ((($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') || ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred')) && (defined($env{'form.grade_symb'})) ||
             (             ($newvariation && !$showanswer)) {
                 $Apache::lonhomework::history{"resource.$part.type"} eq          $lastresponse = 
                 'anonsurvey'      $Apache::lonhomework::history{"resource.$part.$id.submission"};
             )  
             || ( $Apache::lonhomework::history{"resource.$part.type"} eq  
                 'anonsurveycred' )  
         )  
         && ( defined( $env{'form.grade_symb'} ) )  
         || ( $newvariation && !$showanswer )  
       )  
     {  
         $lastresponse =  
           $Apache::lonhomework::history{"resource.$part.$id.submission"};  
     }  
     my %lastresponse = &Apache::lonnet::str2hash($lastresponse);  
      
   
     return \%lastresponse;  
   
 }  
 ##  
 # Removes the names from a foil group that are marked as unused.  
 #  
 # @param $names - reference to the array of names to filter.  
 #  
 # @return arrayref  
 # @retval reference to the filtered array.  
 #  
 sub remove_unused {  
     my ($names) = @_;  
     my @result;  
   
     foreach my $name (@{$names}) {  
  if ($Apache::response::foilgroup{$name . '.value'} ne 'unused') {  
     push(@result, $name);  
  }  
     }  
     return \@result;  
 }  
 ##   
 # Displays all foils in a survey type problem for HTML rendition.  
 # TODO: See if there is any logic in this sub that can be shared  
 #      with display_foils_html  
 #  
 # @param $names        - ref to array of names of the foils to display.  
 # @param $part         - Problem part number.  
 # @param $showanswer   - If true, show the answers.  
 # @param $lastresponse - Ref to the last response hash.  
 # @param $direction    - Display direction of the radiobuttons.  
 #  
 # @return string  
 # @retval HTML required to display the resource in a browser.  
 #  
 sub display_survey_html {  
     my ($names, $part, $showanswer, $lastresponse, $direction) = @_;  
     my $result;  
   
     # Figure out a few fragments of html that depend onthe   
     # orientation of the radiobuttons:  
     # closing_html - HTML to emit at the end of the resource.  
     # pre_foil     - HTML to emit prior to each foil.  
     # post_foil    - HTML to emit following each foil.  
     #  
     #  The opening HTML is just added to the $result now  
     #  
     #  Figuring these outin advance compresses the loop over foils into something  
     #  pretty simple:  
     #  
     # NOTE: There's probably a really cool way to do this with style sheets  
     #       and picking the selector based on the orientation, if someone wants to puzzle  
     #       that out.  In that case, probably the whole thing lives in a <div> and each  
     #       foil lives in a <p>  
     #  
   
     my $closing_html;  
     my $pre_foil;  
     my $post_foil;  
   
     if ($direction eq 'horizontal') {  
  $result       .= '<table><tr>';  
  $closing_html = '</tr></table>';  
  $pre_foil     = '<td>';  
  $post_foil    = '</td>';  
     } else {  
  $pre_foil     = '<br />';  
     }      }
     # Different rendering depending on whether answers are shown:      if ($direction eq 'horizontal') { $result.='<table><tr>'; }
       my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
   
     if ($showanswer) {      if ($showanswer) {
  foreach my $name (@{$names}) {   foreach my $name (@names) {
       if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
     $result .= $pre_foil;   if (($direction eq 'horizontal') && ($target ne 'tex')) {
     my $foiltext =  $Apache::response::foilgroup{$name . '.text'};      $result.="<td>";
    } else {
     # Bold the prior  response:      if ($target eq 'tex') {
    $result .= '\item \vskip -2mm ';
     if (defined($lastresponse->{$name})) {      } else {
  $result .= '<b>' . $foiltext . '</b>';   $result.="<br />";
     } else {      }
  $result .= $foiltext;   }
    if (defined($lastresponse{$name})) {
       if ($target eq 'tex') {
    $result .= '}';
       } else {
    $result.='<b>';
       }
    }
    $result .= $Apache::response::foilgroup{$name.'.text'};
    if (defined($lastresponse{$name}) && ($target ne 'tex')) {
       $result.='</b>';
    }
    if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
     }      }
   
     $result .= $post_foil;  
  }   }
     } else {      } else {
  my $temp = 0;   foreach my $name (@names) {
  foreach my $name (@{$names}) {      if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
     $result .=  $pre_foil;   if ($direction eq 'horizontal') {
       $result.="<td>";
     $result .= &html_radiobutton(   } else {
  $part, $Apache::inputtags::response['-1'], $name, $lastresponse, $temp      if ($target eq 'tex') {
      );          if($env{'form.pdfFormFields'} eq 'yes' && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                               my $fieldname = $env{'request.symb'}.'&part_'. $Apache::inputtags::part
     $result .= $post_foil;                                              .'&radiobuttonresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'];
     $temp++;                              $result .= '\item[{'.&Apache::lonxml::print_pdf_radiobutton($fieldname,$temp).'}]'
                                                 .$Apache::response::foilgroup{$name.'.text'}."\n";
  }                          } else {
     }                              $result .= '\item \vskip -2mm ';
                           }
     $result .= $closing_html;                      } else {
     return $result;   $result.="<br />";
       }
 }   }
    if ($target eq 'tex') {
 ##      if($env{'form.pdfFormFields'} ne 'yes' or $Apache::inputtags::status[-1] ne 'CAN_ANSWER') {
 #  Generate LaTeX for surveys.                          $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\';  #' stupid emacs
 #                        }
 #   @param $names - names of the foils to display.      $i++;
 #   @param $showanswer - flag that is true to display answers.   } else {
 #   @param $lastresponse - Reference to a hash the indicates the last response.      $result .= '<label>';
 #   @param $direction    - Orientation of foils ('horiztonal' or otherwise).      $result.="<input
 #   @param $venv         - LaTeX name for vertical env.                         onchange=\"javascript:setSubmittedPart('$part');\"
 #                         type=\"radio\"
 #   @return string                         name=\"HWVAL_$Apache::inputtags::response['-1']\"
 #   @retval LaTeX rendering of the survey question.                         value=\"$temp\"";
   
 sub latex_survey {      if (defined($lastresponse{$name})) { $result .= ' checked="checked"'; }
     my ($names, $showanswer, $lastresponse, $direction, $venv) = @_;      $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
    '</label>';
     my $result;  
   
   
    
   
     if ($showanswer) {  
   
  $result .= "\\begin{$venv}";  
  foreach my $name (@{$names}) {  
       
       
     $result .= '\item \vskip -2mm ';  
       
     if ( defined( $lastresponse->{$name} ) ) {  
  $result .= '}';  
     }  
     $result .= $Apache::response::foilgroup{ $name . '.text' } . ' ';  
  }  
  $result .= "\\end{$venv}";  
   
     } elsif ( $env{'form.pdfFormFields'} eq 'yes'  
       && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {  
  $result .= &display_pdf_form($names, $direction, $venv);  
     } else {  
  if ($direction eq 'horizontal') {  
     my @foil_texts = &get_foil_texts($names);  
     $result .=  &Apache::caparesponse::make_horizontal_latex_bubbles(  
     $names, \@foil_texts, '$\bigcirc$');  
  } else {  
     $result .= "\\begin{$venv}";  
   
     my $temp = 0;  
     my $i    = 0;  
     foreach my $name (@{$names}) {  
   
  $result .= '\item \vskip -2mm ';  
   
  if ($env{'form.pdfFormFields'} ne 'yes'  
     or $Apache::inputtags::status[-1] ne 'CAN_ANSWER' )  
  {  
     $result .=  
  '$\bigcirc$'  
  . $Apache::response::foilgroup{ $name . '.text' }  
     . '\\\\';    #' stupid emacs  
  }   }
   
  $i++;      
  $temp++;   $temp++;
    if ($target ne 'tex') {
  $result .= '\vskip 0 mm ';      if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
    } else {
       $result.='\vskip 0 mm ';
    }
     }      }
     $result .= "\\end{$venv}";  
  }   }
   
   
     }  
       
     return $result;  
   
       
 }  
 ##  
 #  Figure out the LaTeX environment in which to wrap the LaTeX vertical output.  
 #  
 # @return string  
 # @retval the environment name.  The LaTeX should be wrapped a   
 #    \begin{retval} \end{retval} pair.  
 #  
 sub latex_vertical_environment {  
     if ($env{'form.pdfFormFields'} eq 'yes'  
  && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {  
  return 'itemize';  
     } else {  
  return 'enumerate';  
     }  
 }  
   
   
   
 ##  
 #  
 #  Displays all the foils of a problem in a format suitable for  
 #   surveys, surveys for credit, anonymous surveys and anonymous surveys for credit.  
 #  
 #  @param $direction - Display direction of the choices ('horiztonal' or not).  
 #  @param $target    - Rendering target.  
 #  
 #  @return string  
 #  @retval Text that renders for the selected target.  
 #   
 sub displayallfoils{  
     my ( $direction, $target ) = @_;  
     my $result;  
     &Apache::lonxml::debug("survey style display");  
   
     my @names;  
   
     if ( $Apache::response::foilgroup{'names'} ) {  
         @names = @{ $Apache::response::foilgroup{'names'} };  
     }      }
   
   
     my $id   = $Apache::inputtags::response['-1'];  
     my $part = $Apache::inputtags::part;  
           
     my $showanswer = &Apache::response::show_answer();      if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
     my $lastresponse = &get_last_survey_response($part, $showanswer, $id);  
     my $used_names = &remove_unused(\@names);  
   
   
     if ($target ne 'tex') {  
  $result .= &display_survey_html(  
     $used_names, $part, $showanswer, $lastresponse, $direction  
  );  
     } else {  
   
  my $vertical_env = &latex_vertical_environment();  
  $result .= &latex_survey(  
     $used_names, $showanswer, $lastresponse, $direction, $vertical_env  
  );  
   
     }  
   
   
   
     return $result;      return $result;
 }  }
   
   
   
 sub whichfoils {  sub whichfoils {
     my ( $max, $randomize ) = @_;      my ($max,$randomize)=@_;
   
     my @truelist;      my @truelist;
     my @falselist;      my @falselist;
     my @whichfalse = ();      my @whichfalse =();
     my ( $truecnt, $falsecnt ) = &getfoilcounts();      my ($truecnt,$falsecnt) = &getfoilcounts();
     my $count = 0;      my $count=0;
   
     # we will add in 1 of the true statements      # we will add in 1 of the true statements
     if ( $max > 0 && ( $falsecnt + 1 ) > $max ) { $count = $max }      if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
     else { $count = $falsecnt + 1; $max = $count; }      my $answer=int(&Math::Random::random_uniform() * ($count));
     my $answer = int( &Math::Random::random_uniform() * ($count) );  
     &Apache::lonxml::debug("Count is $count, $answer is $answer");      &Apache::lonxml::debug("Count is $count, $answer is $answer");
     my @names;      my @names;
     if ( $Apache::response::foilgroup{'names'} ) {      if ( $Apache::response::foilgroup{'names'} ) {
         @names = @{ $Apache::response::foilgroup{'names'} };   @names= @{ $Apache::response::foilgroup{'names'} };
     }      }
     if ( &Apache::response::showallfoils() ) {      if (&Apache::response::showallfoils()) {
         @whichfalse = @names;   @whichfalse=@names;
     }      } elsif ($randomize eq 'no') {
     elsif ( $randomize eq 'no' ) {   &Apache::lonxml::debug("No randomization");
         &Apache::lonxml::debug("No randomization");   my $havetrue=0;
         my $havetrue = 0;   foreach my $name (@names) {
         foreach my $name (@names) {      if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
             if ( $Apache::response::foilgroup{ $name . '.value' } eq 'true' ) {   if (!$havetrue ) {
                 if ( !$havetrue ) {      push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
                     push( @whichfalse, $name );   }
                     $havetrue++;      } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
                     $answer = $#whichfalse;   push (@whichfalse,$name);
                 }      } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
             }      } else {
             elsif (   &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
                 $Apache::response::foilgroup{ $name . '.value' } eq 'false' )      }
             {   }
                 push( @whichfalse, $name );   if ((!$havetrue) && 
             }              ($Apache::lonhomework::type ne 'survey') && 
             elsif (              ($Apache::lonhomework::type ne 'surveycred') &&
                 $Apache::response::foilgroup{ $name . '.value' } eq 'unused' )              ($Apache::lonhomework::type ne 'anonsurvey') &&
             {              ($Apache::lonhomework::type ne 'anonsurveycred')) {
             }      &Apache::lonxml::error(&mt('There are no true statements available.').'<br />');
             else {   }
                 &Apache::lonxml::error(      } else {
                     &HTML::Entities::encode(   my $current=0;
 "No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",   &Apache::lonhomework::showhash(%Apache::response::foilgroup);
                         '<>&"'   my (%top,%bottom);
                     )   #first find out where everyone wants to be
                 );   foreach my $name (@names) {
             }      $current++;
         }      if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
         if (   ( !$havetrue )   push (@truelist,$name);
             && ( $Apache::lonhomework::type ne 'survey' )   if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
             && ( $Apache::lonhomework::type ne 'surveycred' )      $top{$name}=$current;
             && ( $Apache::lonhomework::type ne 'anonsurvey' )   } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
             && ( $Apache::lonhomework::type ne 'anonsurveycred' ) )      $bottom{$name}=$current;
         {   }
             &Apache::lonxml::error(      } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
                 &mt('There are no true statements available.') . '<br />' );   push (@falselist,$name);
         }   if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
     }      $top{$name}=$current;
     else {   } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
         my $current = 0;      $bottom{$name}=$current;
         &Apache::lonhomework::showhash(%Apache::response::foilgroup);   }
         my ( %top, %bottom );      } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
       } else {
         #first find out where everyone wants to be   &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
         foreach my $name (@names) {      }
             $current++;   }
             if ( $Apache::response::foilgroup{ $name . '.value' } eq 'true' ) {   #pick a true statement
                 push( @truelist, $name );   my $notrue=0;
                 if ( $Apache::response::foilgroup{ $name . '.location' } eq   if (scalar(@truelist) == 0) { $notrue=1; }
                     'top' )   my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
                 {   &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
                     $top{$name} = $current;   my (@toplist, @bottomlist);
                 }   my $topcount=0;
                 elsif ( $Apache::response::foilgroup{ $name . '.location' } eq   my $bottomcount=0;
                     'bottom' )   # assign everyone to either toplist/bottomlist or whichfalse
                 {   # which false is randomized, toplist bottomlist are in order
                     $bottom{$name} = $current;   while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
                 }      &Apache::lonxml::debug("Have $#whichfalse max is $max");
             }      my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
             elsif (      &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
                 $Apache::response::foilgroup{ $name . '.value' } eq 'false' )      $afalse=splice(@falselist,$afalse,1);
             {      &Apache::lonxml::debug("Picked $afalse");
                 push( @falselist, $name );      &Apache::lonhomework::showhash(('names'=>\@names));
                 if ( $Apache::response::foilgroup{ $name . '.location' } eq      &Apache::lonhomework::showhash(%top);
                     'top' )      if ($top{$afalse}) {
                 {   $toplist[$top{$afalse}]=$afalse;
                     $top{$name} = $current;   $topcount++;
                 }      } elsif ($bottom{$afalse}) {
                 elsif ( $Apache::response::foilgroup{ $name . '.location' } eq   $bottomlist[$bottom{$afalse}]=$afalse;
                     'bottom' )   $bottomcount++;
                 {      } else {
                     $bottom{$name} = $current;   push (@whichfalse,$afalse);
                 }      }
             }   }
             elsif (   &Apache::lonxml::debug("Answer wants $answer");
                 $Apache::response::foilgroup{ $name . '.value' } eq 'unused' )   my $truename=$truelist[$whichtrue];
             {   my $dosplice=1;
             }   if (($notrue) && 
             else {              ($Apache::lonhomework::type ne 'survey') &&
                 &Apache::lonxml::error(              ($Apache::lonhomework::type ne 'surveycred') &&
                     &HTML::Entities::encode(              ($Apache::lonhomework::type ne 'anonsurvey') &&
 "No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",              ($Apache::lonhomework::type ne 'anonsurveycred')) {
                         '<>&"'      $dosplice=0;
                     )      &Apache::lonxml::error(&mt('There are no true statements available.').'<br />');
                 );   }
             }   #insert the true statement, keeping track of where it wants to be
         }   if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
       $toplist[$top{$truename}]=$truename;
         #pick a true statement      $answer=-1;
         my $notrue = 0;      foreach my $top (reverse(@toplist)) {
         if ( scalar(@truelist) == 0 ) { $notrue = 1; }   if ($top) { $answer++;}
         my $whichtrue =   if ($top eq $truename) { last; }
           int( &Math::Random::random_uniform() * ( $#truelist + 1 ) );      }
         &Apache::lonxml::debug(      $dosplice=0;
             "Max is $max, From $#truelist elms, picking $whichtrue");   } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
         my ( @toplist, @bottomlist );      $bottomlist[$bottom{$truename}]=$truename;
         my $topcount    = 0;      $answer=-1;
         my $bottomcount = 0;      foreach my $bot (@bottomlist) {
    if ($bot) { $answer++;}
         # assign everyone to either toplist/bottomlist or whichfalse   if ($bot eq $truename) { last; }
         # which false is randomized, toplist bottomlist are in order      }
         while (( ( $#whichfalse + $topcount + $bottomcount ) < $max - 2 )      $answer+=$topcount+$#whichfalse+1;
             && ( $#falselist > -1 ) )      $dosplice=0;
         {   } else {
             &Apache::lonxml::debug("Have $#whichfalse max is $max");      if ($topcount>0 || $bottomcount>0) {
             my $afalse =  
               int( &Math::Random::random_uniform() * ( $#falselist + 1 ) );  
             &Apache::lonxml::debug("From $#falselist elms, picking $afalse");  
             $afalse = splice( @falselist, $afalse, 1 );  
             &Apache::lonxml::debug("Picked $afalse");  
             &Apache::lonhomework::showhash( ( 'names' => \@names ) );  
             &Apache::lonhomework::showhash(%top);  
             if ( $top{$afalse} ) {  
                 $toplist[ $top{$afalse} ] = $afalse;  
                 $topcount++;  
             }  
             elsif ( $bottom{$afalse} ) {  
                 $bottomlist[ $bottom{$afalse} ] = $afalse;  
                 $bottomcount++;  
             }  
             else {  
                 push( @whichfalse, $afalse );  
             }  
         }  
         &Apache::lonxml::debug("Answer wants $answer");  
         my $truename = $truelist[$whichtrue];  
         my $dosplice = 1;  
         if (   ($notrue)  
             && ( $Apache::lonhomework::type ne 'survey' )  
             && ( $Apache::lonhomework::type ne 'surveycred' )  
             && ( $Apache::lonhomework::type ne 'anonsurvey' )  
             && ( $Apache::lonhomework::type ne 'anonsurveycred' ) )  
         {  
             $dosplice = 0;  
             &Apache::lonxml::error(  
                 &mt('There are no true statements available.') . '<br />' );  
         }  
   
         #insert the true statement, keeping track of where it wants to be  
         if (   $Apache::response::foilgroup{ $truename . '.location' } eq 'top'  
             && $dosplice )  
         {  
             $toplist[ $top{$truename} ] = $truename;  
             $answer = -1;  
             foreach my $top ( reverse(@toplist) ) {  
                 if ($top) { $answer++; }  
                 if ( $top eq $truename ) { last; }  
             }  
             $dosplice = 0;  
         }  
         elsif (  
             $Apache::response::foilgroup{ $truename . '.location' } eq 'bottom'  
             && $dosplice )  
         {  
             $bottomlist[ $bottom{$truename} ] = $truename;  
             $answer = -1;  
             foreach my $bot (@bottomlist) {  
                 if ($bot) { $answer++; }  
                 if ( $bot eq $truename ) { last; }  
             }  
             $answer += $topcount + $#whichfalse + 1;  
             $dosplice = 0;  
         }  
         else {  
             if ( $topcount > 0 || $bottomcount > 0 ) {  
                 my $inc = 1;                  my $inc = 1;
                 if (   ( $bottomcount > 0 )                  if (($bottomcount > 0) && ($Apache::lonhomework::type ne 'exam')) {
                     && ( $Apache::lonhomework::type ne 'exam' ) )  
                 {  
                     $inc = 2;                      $inc = 2;
                 }                  }
                 $answer = int(                  $answer=int(&Math::Random::random_uniform() * ($#whichfalse+$inc))
                     &Math::Random::random_uniform() * ( $#whichfalse + $inc ) )                          + $topcount;
                   + $topcount;      }
             }  
         }  
         &Apache::lonxml::debug("Answer now wants $answer");  
   
         #add the top items to the top, bottom items to the bottom  
         for ( my $i = 0 ; $i <= $#toplist ; $i++ ) {  
             if ( $toplist[$i] ) { unshift( @whichfalse, $toplist[$i] ) }  
         }  
         for ( my $i = 0 ; $i <= $#bottomlist ; $i++ ) {  
             if ( $bottomlist[$i] ) { push( @whichfalse, $bottomlist[$i] ) }  
         }  
   
         #if the true statement is randomized insert it into the list  
         if ($dosplice) {  
             splice( @whichfalse, $answer, 0, $truelist[$whichtrue] );  
         }  
     }  
     &Apache::lonxml::debug("Answer is $answer");  
     return ( $answer, @whichfalse );  
 }  
   
 ##   
 #  Return a list  of foil texts given foil names.  
 #    
 # @param $whichfoils - Reference to a list of foil names.  
 #  
 # @return array  
 # @retval foil texts  
 #  
 sub get_foil_texts {  
     my ($whichfoils) = @_;  
     my @foil_texts;  
   
     foreach my $name (@{$whichfoils}) {  
  push(@foil_texts, $Apache::response::foilgroup{$name . '.text'});  
     }  
     return @foil_texts;  
 }  
   
 ##  
 # Generate the HTML for a single html foil.  
 # @param $part           - The part for which the response is being generated.  
 # @param $fieldname      - The basename of the radiobutton field  
 # @param $name           - The foilname.  
 # @param $last_responses - Reference to a hash that holds the most recent  
 #                          responses.  
 # @param $value          - radiobutton value.  
 #   
 # @return text  
 # @retval The generated html.  
 #  
 sub html_radiobutton {  
     my ($part, $fieldname, $name, $last_responses, $value) = @_;  
   
     my $result='<label>';  
       
     $result .= '<input type="radio"  
                 onchange="javascript:setSubmittedPart(' . "'$part');\""  
  . 'name="HWVAL_' . $fieldname . '"'  
  . "value='$value'";  
   
     if (defined($last_responses->{$name})) {  
  $result .= '  checked="checked" ';  
     }  
     $result .= ' />';  
     $result .= $Apache::response::foilgroup{$name . '.text'};  
     $result .= '</label>';  
   
     return $result;  
   
 }  
 ##  
 # Return a reference to the last response hash. This hash has exactly  
 # one or zero entries.  The one entry is keyed by the foil 'name' of  
 # the prior response  
 #  
 # @param $part - Number of the problem part.  
 #   
 # @return reference to a hash.  
 # @retval see above.  
 #  
 sub get_last_response {  
     my ($part) = @_;  
   
     my $id = $Apache::inputtags::response['-1'];  
     my ( $lastresponse, $newvariation );  
       
     if ((( $Apache::lonhomework::history{"resource.$part.type"} eq  'randomizetry')  
  || ( $Apache::lonhomework::type eq 'randomizetry' )  
  )  
  && ( $Apache::inputtags::status[-1] eq 'CAN_ANSWER' )  
  )  
     {  
   
  if ( $env{ 'form.' . $part . '.rndseed' } ne  
      $Apache::lonhomework::history{"resource.$part.rndseed"} )  
  {  
     $newvariation = 1;  
  }   }
    &Apache::lonxml::debug("Answer now wants $answer");
    #add the top items to the top, bottom items to the bottom
    for (my $i=0;$i<=$#toplist;$i++) {
       if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
    }
    for (my $i=0;$i<=$#bottomlist;$i++) {
       if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
    }
    #if the true statement is randomized insert it into the list
    if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
     }      }
     unless ($newvariation) {      &Apache::lonxml::debug("Answer is $answer");
  $lastresponse =      return ($answer,@whichfalse);
     $Apache::lonhomework::history{"resource.$part.$id.submission"};  
     }  
     my %lastresponse = &Apache::lonnet::str2hash($lastresponse);  
   
     return \%lastresponse;  
 }  }
   
 ##  sub displayfoils {
 # Display foils in html rendition.:      my ($target,$answer,$whichfoils,$direction, $bubbles_per_line)=@_;
 #  
 # @param $whichfoils - Set of foils to display.  
 # @param $target     - Rendition target...there are several html targets.  
 # @param $direction  - 'horizontal' if layout is horizontal.  
 # @param $part       - Part of the problem that's being displayed.  
 # @param $show_answer- True if answers should be shown.  
 #  
 # @return string  
 # @retval generated html.  
 #  
 sub display_foils_html {  
     my ($whichfoils, $target, $direction, $part, $show_answer) = @_;  
     my $result;      my $result;
   
     # if the answers get shown, we need to label each item as correct or      my $part=$Apache::inputtags::part;
     # incorrect.      my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
       if ( ($target ne 'tex') &&
     if ($show_answer) {   &Apache::response::show_answer() ) {
  my $item_pretext     = '<br />'; # html prior to each item  
  my $item_posttext    = ''; # html after each item.  
  my $finalclose       = ''; # html to close off the whole shebang  
   
   
  # Horizontal layout is a table with each foil in a cell  
   
  if ($direction eq 'horizontal') {   if ($direction eq 'horizontal') {
     $result        = '<table><tr>';      if ($target ne 'tex') {
     $item_pretext  = '<td>' . $item_pretext;   $result.='<table><tr>';
     $item_posttext = '</td>';      }
     $finalclose    = '</tr></table>';   }
  }    foreach my $name (@{ $whichfoils }) {
       if ($direction eq 'horizontal') {
  foreach my $name (@{$whichfoils}) {   if ($target ne 'tex') { $result.='<td>'; }
       }
     # If the item gets further surrounded by tags, this       if ($target ne 'tex') {
     # holds the closures for those tages.   $result.="<br />";
   
     my $item_closetag = '';  
   
     $result .= $item_pretext;  
   
     # Label each foil as correct or incorrect:  
   
     if ($Apache::response::foilgroup{$name . '.value'} eq 'true') {  
  $result .= &mt('Correct:') . '<b>';  
  $item_closetag .= '</b>';  
   
     } else {      } else {
  $result .= &mt('Incorrect');   $result.='\item \vskip -2 mm  ';
     }      }
       if ($Apache::response::foilgroup{$name.'.value'} eq 'true') { 
     # Web rendition encloses the    if ($target ne 'tex') {
     # item text in a label tag as well:                      $result.=&mt('Correct:').'<b>';
                   } else {
     if ($target eq 'web') {                      $result.=&mt('Correct:').' \textbf{';
  $result .= '<label>';                  }
  $item_closetag = '</label>' . $item_closetag;      } else {
    $result.=&mt('Incorrect:');
       }
       if ($target eq 'web') { $result.="<label>"; }
       $result.=$Apache::response::foilgroup{$name.'.text'};
       if ($target eq 'web') { $result.="</label>"; }
       if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
    if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
       }
       if ($direction eq 'horizontal') {
    if ($target ne 'tex') { $result.='</td>'; }
     }      }
     $result .= $Apache::response::foilgroup{$name . '.text'};  
     $result .= $item_closetag;  
     $result .= $item_posttext;  
     $result .= "\n"; # make the html a bit more readable.  
  }  
   
  $result .= $finalclose;  
   
     } else {  
  $result .= '<br />'; # end line prior to foilgroup:  
   
  #  Not showing the answers, we need to generate the HTML appropriate  
  #  to allowing the student to respond.  
   
  my $item_pretext;  
  my $item_posttext;  
  my $lastresponse = &get_last_response($part);  
   
  if ( $direction eq 'horizontal' ) {  
     $item_pretext  = '<td>';  
     $item_posttext = '</td>';  
  }  
  else {  
     $item_pretext = '<br/>';  
  }  
  my $item_no = 0;  
  foreach my $name (@{$whichfoils}) {  
     $result .= $item_pretext;  
     $result .= &html_radiobutton(  
  $part, $Apache::inputtags::response[-1],  
  $name, $lastresponse, $item_no  
  );  
     $result .= $item_posttext;  
     $item_no++;  
  }  
   
  if ($direction eq 'horizontal' ) {  
             $result .= "</tr></table>";  
         } else {  
      $result .= "<br />";   
  }  
     }  
   
     return $result;  
 }  
 ##  
 #  Display foils in exam mode for latex  
 #  
 # @param $whichfoils       - Reference to an array that contains the foil names to display  
 # @param $bubbles_per_line - Number of bubbles on a line.  
 # @param $direction        - Rendering direction 'horizontal' is what we're looking for.  
 # @param $venv             - Name of LaTeX environment to use for vertical rendering.  
 #  
 # @return string  
 # @return the latex rendering of the exam problem.  
 #  
 #  
 sub display_latex_exam {  
     my ($whichfoils, $bubbles_per_line, $direction, $venv) = @_;  
     my $result;  
     my $numlines;  
     my $bubble_number = 0;  
     my $line          = 0;  
     my $i             = 0;  
   
   
     if ($direction eq  'horizontal') {  
   
  # Marshall the display text for each foil and turn things over to  
  # Apache::response::make_horizontal_bubbles:  
   
  my @foil_texts = &get_foil_texts($whichfoils);  
  $result .= &Apache::caparesponse::make_horizontal_latex_bubbles(  
     $whichfoils, \@foil_texts, '$\bigcirc$');  
   
   
     } else {  
  $result .= "\\begin{$venv}";  
   
  # This section puts out the prefix that tells the user  
  # (if necessary) to only choose one bubble in the next n lines  
  # for problems with more than one line worth of bubbles in the grid sheet:  
   
  my $numitems = scalar( @{$whichfoils} );  
  $numlines = int( $numitems / $bubbles_per_line );  
  if ( ( $numitems % $bubbles_per_line ) != 0 ) {  
     $numlines++;  
  }  
  if ( $numlines < 1 ) {  
     $numlines = 1;  
  }  
  if ( $numlines > 1 ) {  
     my $linetext;  
     for ( my $i = 0 ; $i < $numlines ; $i++ ) {  
  $linetext .= $Apache::lonxml::counter + $i . ', ';  
     }  
     $linetext =~ s/,\s$//;  
     $result .=  
  '\item[\small {\textbf{'  
  . $linetext . '}}]'  
  . ' {\footnotesize '  
  . &mt( '(Bubble once in [_1] lines)', $numlines )  
  . '} \hspace*{\fill} \\\\';  
  }  
  else {  
     $result .= '\item[\textbf{' . $Apache::lonxml::counter . '}.]';  
  }  
   
  # Now output the bubbles themselves:  
   
  foreach my $name (@{$whichfoils}) {  
     if ( $bubble_number >= $bubbles_per_line ) {  
  $line++;  
  $i             = 0;  
  $bubble_number = 0;  
     }  
     my $identifier;  
     if ( $numlines > 1 ) {  
  $identifier = $Apache::lonxml::counter + $line;  
     }  
     $result .=  
  '{\small \textbf{'  
  . $identifier  
  . $alphabet[$i]  
  . '}}$\bigcirc$'  
  . $Apache::response::foilgroup{ $name . '.text' }  
     . '\\\\';    #' stupid emacs -- it thinks it needs that apostrophe to close the quote  
       
     $i++;  
     $bubble_number++;  
  }   }
  $result .= "\\end{$venv}";   if ($direction eq 'horizontal') {
       if ($target ne 'tex') {
     }   $result.='</tr></table>';
       }
     return $result;  
       
 }  
   
 ##  
 #  Display latex when exam mode is not on.  
 #  
 #  @param $whichfoils - The foils to display  
 #  @param $direction  - Display direction ('horizontal' is what matters to us).  
 #  @param $venv       - Vertical env. to use for vertical rendering.  
 #  @param  $vend      - End the vertical environment being used.  
 #  
 #  @return string  
 #  @retval - The LaTeX rendering of the resource.'  
 #  
 sub display_latex {  
     my ($whichfoils, $direction, $venv) = @_;  
     my $result;  
   
     # how we render depends on the direction.  
     # Vertical is some kind of list environment determined by vbegin/vend.  
     # Horizontal is a table that is generated by   
     # Apache::caparesponse::make_horizontal_latex_bubbles with an empty string  
     # for the actual bubble text.  
   
     if ($direction eq 'horizontal') {  
  my @foil_texts = &get_foil_texts($whichfoils);  
  $result .= &Apache::caparesponse::make_horizontal_latex_bubbles(  
     $whichfoils, \@foil_texts, '');  
     } else {  
  $result .= "\\begin{$venv}";  
  foreach my $name (@{$whichfoils}) {  
     $result .=  '\vspace*{-2 mm}\item '  
  . $Apache::response::foilgroup{ $name . '.text' };  
  }   }
   
  $result .= "\\end{$venv}";  
     }  
     return $result;  
 }  
   
   
 ##  
 #  Render foils for a PDF form. This is a variant of tex rednering that provides  
 #  sufficient markup that the final PDF is a form that can be filled in online,  
 #  or offline.  
 #  
 # @param $whichfoils - References an array of foils to display in the order in which  
 #                     they should be displayed.  
 # @param $direction  - Rendering direction.  'horiztonal' means inputs are laid out  
 #                      horizontally otherwise they are stacked vertically.  
 # @param $venv       - Vertical environment in which to wrap the foils.  
 #  
 # @return string  
 # @retval String containing the rendering of the resource.  
 #  
 # TODO: Take into account direction!!!  
 #  
 sub display_pdf_form {  
     my ($whichfoils, $direction, $venv) = @_;  
     my $temp = 0;  
     my $result;  
   
     $result .= "\\begin{$venv}";  
     foreach my $name ( @{$whichfoils} ) {  
   
  my $fieldname =  
     $env{'request.symb'}   
  . '&part_'  
     . $Apache::inputtags::part  
     . '&radiobuttonresponse'  
     . '&HWVAL_'  
     . $Apache::inputtags::response['-1'];  
  $result .= '\item[{'  
     . &Apache::lonxml::print_pdf_radiobutton( $fieldname,  
       $temp )  
     . '}]'  
     . $Apache::response::foilgroup{ $name . '.text' }  
  . "\n";  
   
  $temp++;  
     }  
     $result .= "\\end{$venv}";  
   
     return $result;  
 }  
   
   
 ##  
 # Display selected foils:  This is really just a dispatchter to appropriate renderers  
 #    
 # @param $target   - Target (e.g. 'tex'...).  
 # @param $answer   - True if answers should be shown.  
 # @param $whichfoils - Array of foil selectors that indicate which foils shouild be  
 #                      rendered, in rendering order.  
 # @param $direction- Rendering direction ('horizontal' is the one we look for,  
 #                    otherwise foils are rendered one per line vertically.  
 # @param $bubbles_per_line - number of exam bubbles per line.  
 #  
 # @return string  
 # @retval The rendered problem.  
   
 sub displayfoils {  
     my ( $target, $answer, $whichfoils, $direction, $bubbles_per_line ) = @_;  
     my $result;  
   
     my $part   = $Apache::inputtags::part;  
     my $solved = $Apache::lonhomework::history{"resource.$part.solved"};  
   
     # Show answers html.  
   
     if ( ( $target ne 'tex' )  
         && &Apache::response::show_answer() )  
     {  
   
  $result = &display_foils_html(  
     $whichfoils, $target, $direction, $part,  1);  
   
  # other html  
     }  elsif ($target ne 'tex') {  
     $result = &display_foils_html($whichfoils, $target, $direction, $part,  
   0, 0);  
   
        # LaTeX rendering:  
     } else {      } else {
    my @alphabet = ('A'..'Z');
    my $i = 0;
         my $id            = $Apache::inputtags::response['-1'];   my $bubble_number = 0;
         my $part          = $Apache::inputtags::part;   my $line = 0;
  my $numlines;   my $temp=0;  
    my $id=$Apache::inputtags::response['-1'];
  # Decide how to bracket the list of foils:   my $part=$Apache::inputtags::part;
           my ($lastresponse,$newvariation);
  my $vertical_env = &latex_vertical_environment();          if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
                ($Apache::lonhomework::type eq 'randomizetry')) && 
  # Rendering for latex exams.          ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
               if ($env{'form.'.$part.'.rndseed'} ne
  if ( ( $Apache::lonhomework::type eq 'exam' ) )                  $Apache::lonhomework::history{"resource.$part.rndseed"}) {
  {                  $newvariation = 1;
     $result .= &display_latex_exam(              }
  $whichfoils, $bubbles_per_line, $direction, $vertical_env);          }
           unless ($newvariation) {
     $result .= '\vskip 0mm ';      $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
               }
  } else {       my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
    if ($target ne 'tex' && $direction eq 'horizontal') {
     # Different rendering for PDF form than for a      $result.="<table><tr>";
     # 'regular' answer direction is honored in both of those   }
     #          my $numlines;
           if (($target eq 'tex') && ($Apache::lonhomework::type eq 'exam')) {
     if ( ($env{'form.pdfFormFields'} eq 'yes')              my $numitems = scalar(@{ $whichfoils });
     && ($Apache::inputtags::status[-1] eq 'CAN_ANSWER'))              $numlines = int($numitems/$bubbles_per_line);
     {              if (($numitems % $bubbles_per_line) != 0) {
  $result .= &display_pdf_form($whichfoils, $direction, $vertical_env);                  $numlines ++;
               }
               if ($numlines < 1) {
                   $numlines = 1;
               }
               if ($numlines > 1) {
                   my $linetext;
                   for (my $i=0; $i<$numlines; $i++) {
                       $linetext .= $Apache::lonxml::counter+$i.', ';
                   }
                   $linetext =~ s/,\s$//;
                   $result .= '\item[\small {\textbf{'.$linetext.'}}]'.
                              ' {\footnotesize '.
                              &mt('(Bubble once in [_1] lines)',$numlines).
                              '} \hspace*{\fill} \\\\';
               } else {
                   $result .= '\item[\textbf{'.$Apache::lonxml::counter.'}.]';
               }
           }
    foreach my $name (@{ $whichfoils }) {
       if ($target ne 'tex') {
    if ($direction eq 'horizontal') {
       $result.="<td>"; 
    } else { 
       $result.="<br />";
    } 
       }
       if ($target ne 'tex') { 
                   $result.= '<label>';
    $result.=
       "<input type=\"radio\"
                               onchange=\"javascript:setSubmittedPart('$part');\"
                               name=\"HWVAL_$Apache::inputtags::response['-1']\"
                               value=\"$temp\"";
    if (defined($lastresponse{$name})) { $result .= ' checked="checked"'; }
    $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
     } else {      } else {
  $result .= &display_latex($whichfoils,  $direction, $vertical_env );   if ($Apache::lonhomework::type eq 'exam') {
       if($bubble_number >= $bubbles_per_line) {
    $line++;
    $i = 0;
    $bubble_number = 0;
       }
                       my $identifier;
                       if ($numlines > 1) {
                           $identifier = $Apache::lonxml::counter+$line;
                       }
                       $result .= '{\small \textbf{'.$identifier.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\';  #' stupid emacs
       $i++;
       $bubble_number++;
    } else {
                       if($env{'form.pdfFormFields'} eq 'yes' && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
                           my $fieldname = $env{'request.symb'}.'&part_'. $Apache::inputtags::part
                                           .'&radiobuttonresponse'.'&HWVAL_'.$Apache::inputtags::response['-1'];
                           $result .= '\item[{'.&Apache::lonxml::print_pdf_radiobutton($fieldname,$temp).'}]'
                                      .$Apache::response::foilgroup{$name.'.text'}."\n";
                       } else { 
                           $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
                       }
                   }
       }
       if ($target ne 'tex' && $direction eq 'horizontal') {
    $result.="</td>"; 
     }      }
     $result .= '\vskip 0 mm ';       $temp++;
           }
    if ($target ne 'tex' && $direction eq 'horizontal') {
       $result.="</tr></table>";
  }   }
   
   
     }      }
       if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
     return $result;      return $result;
 }  }
   
 sub displayallanswers {  sub displayallanswers {
     my @names;      my @names;
     if ( $Apache::response::foilgroup{'names'} ) {      if ( $Apache::response::foilgroup{'names'} ) {
         @names = @{ $Apache::response::foilgroup{'names'} };   @names= @{ $Apache::response::foilgroup{'names'} };
     }      }
     my $result = &Apache::response::answer_header('radiobuttonresponse');      my $result=&Apache::response::answer_header('radiobuttonresponse');
     foreach my $name (@names) {      foreach my $name (@names) {
         $result .=   $result.=&Apache::response::answer_part('radiobuttonresponse',
           &Apache::response::answer_part( 'radiobuttonresponse',   $Apache::response::foilgroup{$name.'.value'});
             $Apache::response::foilgroup{ $name . '.value' } );  
     }      }
     $result .= &Apache::response::answer_footer('radiobuttonresponse');      $result.=&Apache::response::answer_footer('radiobuttonresponse');
     return $result;      return $result;
 }  }
   
 sub displayanswers {  sub displayanswers {
     my ( $answer, $whichopt, $bubbles_per_line ) = @_;      my ($answer, $whichopt, $bubbles_per_line)=@_;
     my $result;      my $result;
   
     if ( $Apache::lonhomework::type eq 'exam' ) {      if ($Apache::lonhomework::type eq 'exam') {
         my $line    = int( $answer / $bubbles_per_line );   my $line = int($answer/$bubbles_per_line);
         my $correct = ( 'A' .. 'Z' )[ $answer % $bubbles_per_line ];   my $correct = ('A'..'Z')[$answer%$bubbles_per_line];
         $result .=   $result .= &Apache::response::answer_header('radiobuttonresponse',
           &Apache::response::answer_header( 'radiobuttonresponse', $line );      $line);
         $result .=   $result .= &Apache::response::answer_part('radiobuttonresponse',
           &Apache::response::answer_part( 'radiobuttonresponse', $correct );    $correct);
     }      } else {
     else {   $result .= &Apache::response::answer_header('radiobuttonresponse');
         $result .= &Apache::response::answer_header('radiobuttonresponse');  
     }  
     foreach my $name ( @{$whichopt} ) {  
         $result .=  
           &Apache::response::answer_part( 'radiobuttonresponse',  
             $Apache::response::foilgroup{ $name . '.value' } );  
     }      }
     $result .= &Apache::response::answer_footer('radiobuttonresponse');      foreach my $name (@{ $whichopt }) {
    $result.=&Apache::response::answer_part('radiobuttonresponse',
    $Apache::response::foilgroup{$name.'.value'});
       }
       $result.=&Apache::response::answer_footer('radiobuttonresponse');
     return $result;      return $result;
 }  }
   
 sub start_conceptgroup {  sub start_conceptgroup {
     my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) =      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       @_;      $Apache::radiobuttonresponse::conceptgroup=1;
     $Apache::radiobuttonresponse::conceptgroup = 1;      %Apache::response::conceptgroup=();
     %Apache::response::conceptgroup            = ();      my $result;
     my $result;      if ($target eq 'edit') {
     if ( $target eq 'edit' ) {   $result.=&Apache::edit::tag_start($target,$token);
         $result .= &Apache::edit::tag_start( $target, $token );   $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
         $result .=      &Apache::edit::end_row().&Apache::edit::start_spanning_row();
             &Apache::edit::text_arg( 'Concept:', 'concept', $token, '50' )      } elsif ($target eq 'modified') {
           . &Apache::edit::end_row()   my $constructtag=&Apache::edit::get_new_args($token,$parstack,
           . &Apache::edit::start_spanning_row();       $safeeval,'concept');
     }   if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
     elsif ( $target eq 'modified' ) {  
         my $constructtag =  
           &Apache::edit::get_new_args( $token, $parstack, $safeeval,  
             'concept' );  
         if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }  
     }      }
     return $result;      return $result;
 }  }
   
 sub end_conceptgroup {  sub end_conceptgroup {
     my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) =      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       @_;      $Apache::radiobuttonresponse::conceptgroup=0;
     $Apache::radiobuttonresponse::conceptgroup = 0;  
     my $result;      my $result;
     if (   $target eq 'web'      if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'  ||
         || $target eq 'grade'   $target eq 'tex' || $target eq 'analyze') {
         || $target eq 'answer'   &Apache::response::pick_foil_for_concept($target,
         || $target eq 'tex'   ['value','text','location'],
         || $target eq 'analyze' )   \%Apache::hint::radiobutton,
     {   $parstack,$safeeval);
         &Apache::response::pick_foil_for_concept( $target,      } elsif ($target eq 'edit') {
             [ 'value', 'text', 'location' ],   $result=&Apache::edit::end_table();
             \%Apache::hint::radiobutton, $parstack, $safeeval );  
     }  
     elsif ( $target eq 'edit' ) {  
         $result = &Apache::edit::end_table();  
     }      }
     return $result;      return $result;
 }  }
   
 sub insert_conceptgroup {  sub insert_conceptgroup {
     my $result =      my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
         "\n\t\t<conceptgroup concept=\"\">"  
       . &insert_foil()  
       . "\n\t\t</conceptgroup>\n";  
     return $result;      return $result;
 }  }
   
 sub start_foil {  sub start_foil {
     my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) =      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       @_;      my $result='';
     my $result = '';      if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
     if ( $target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {   &Apache::lonxml::startredirection;
         &Apache::lonxml::startredirection;   if ($target eq 'analyze') {
         if ( $target eq 'analyze' ) {      &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
             &Apache::response::check_if_computed( $token, $parstack, $safeeval,   }
                 'value' );      } elsif ($target eq 'edit') {
         }   $result=&Apache::edit::tag_start($target,$token);
     }   $result.=&Apache::edit::text_arg('Name:','name',$token);
     elsif ( $target eq 'edit' ) {   $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
         $result = &Apache::edit::tag_start( $target, $token );     ['unused','true','false'],
         $result .= &Apache::edit::text_arg( 'Name:', 'name', $token );     $token);
         $result .= &Apache::edit::select_or_text_arg(   my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
             'Correct Option:', 'value',   $safeeval,'-3');
             [ 'unused', 'true', 'false' ], $token   if ($randomize ne 'no') {
         );      $result.=&Apache::edit::select_arg('Location:','location',
         my $randomize =         ['random','top','bottom'],$token);
           &Apache::lonxml::get_param( 'randomize', $parstack, $safeeval, '-3' );   }
         if ( $randomize ne 'no' ) {   $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
             $result .=      } elsif ($target eq 'modified') {
               &Apache::edit::select_arg( 'Location:', 'location',   my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                 [ 'random', 'top', 'bottom' ], $token );       $safeeval,'value','name',
         }       'location');
         $result .=   if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
           &Apache::edit::end_row() . &Apache::edit::start_spanning_row();      } 
     }  
     elsif ( $target eq 'modified' ) {  
         my $constructtag =  
           &Apache::edit::get_new_args( $token, $parstack, $safeeval, 'value',  
             'name', 'location' );  
         if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }  
     }  
     return $result;      return $result;
 }  }
   
 sub end_foil {  sub end_foil {
     my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) =      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       @_;      my $text='';
     my $text = '';      if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
     if ( $target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {   $text=&Apache::lonxml::endredirection;
         $text = &Apache::lonxml::endredirection;      }
     }      if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
     if (   $target eq 'web'   || $target eq 'tex' || $target eq 'analyze') {
         || $target eq 'grade'   my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
         || $target eq 'answer'   if ($value ne 'unused') {
         || $target eq 'tex'      my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
         || $target eq 'analyze' )      if ($name eq "") {
     {   &Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
         my $value = &Apache::lonxml::get_param( 'value', $parstack, $safeeval );   $name=$Apache::lonxml::curdepth;
         if ( $value ne 'unused' ) {      }
             my $name =      if (defined($Apache::response::foilnames{$name})) {
               &Apache::lonxml::get_param( 'name', $parstack, $safeeval );   &Apache::lonxml::error(&mt('Foil name [_1] appears more than once. Foil names need to be unique.','<b><tt>'.$name.'</tt></b>'));
             if ( $name eq "" ) {      }
                 &Apache::lonxml::warning(      $Apache::response::foilnames{$name}++;
                     &mt(      my $location =&Apache::lonxml::get_param('location',$parstack,
 'Foils without names exist. This can cause problems to malfunction.'       $safeeval);
                     )      if ( $Apache::radiobuttonresponse::conceptgroup
                 );   && !&Apache::response::showallfoils() ) {
                 $name = $Apache::lonxml::curdepth;   push @{ $Apache::response::conceptgroup{'names'} }, $name;
             }   $Apache::response::conceptgroup{"$name.value"} = $value;
             if ( defined( $Apache::response::foilnames{$name} ) ) {   $Apache::response::conceptgroup{"$name.text"} = $text;
                 &Apache::lonxml::error(   $Apache::response::conceptgroup{"$name.location"} = $location;
                     &mt(      } else {
 'Foil name [_1] appears more than once. Foil names need to be unique.',   push @{ $Apache::response::foilgroup{'names'} }, $name;
                         '<b><tt>' . $name . '</tt></b>'   $Apache::response::foilgroup{"$name.value"} = $value;
                     )   $Apache::response::foilgroup{"$name.text"} = $text;
                 );   $Apache::response::foilgroup{"$name.location"} = $location;
             }      }
             $Apache::response::foilnames{$name}++;   }
             my $location =  
               &Apache::lonxml::get_param( 'location', $parstack, $safeeval );  
             if ( $Apache::radiobuttonresponse::conceptgroup  
                 && !&Apache::response::showallfoils() )  
             {  
                 push @{ $Apache::response::conceptgroup{'names'} }, $name;  
                 $Apache::response::conceptgroup{"$name.value"}    = $value;  
                 $Apache::response::conceptgroup{"$name.text"}     = $text;  
                 $Apache::response::conceptgroup{"$name.location"} = $location;  
             }  
             else {  
                 push @{ $Apache::response::foilgroup{'names'} }, $name;  
                 $Apache::response::foilgroup{"$name.value"}    = $value;  
                 $Apache::response::foilgroup{"$name.text"}     = $text;  
                 $Apache::response::foilgroup{"$name.location"} = $location;  
             }  
         }  
     }      }
     return '';      return '';
 }  }
Removed from v.1.153.6.9  
changed lines
  Added in v.1.154

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>