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

Diff for /loncom/homework/optionresponse.pm between versions 1.2 and 1.96

version 1.2, 2001/02/07 00:28:33 version 1.96, 2003/11/15 06:28:02
Line 1 Line 1
 # The LearningOnline Network with CAPA  # LearningOnline Network with CAPA
 # option list style responses  # option list style responses
   #
   # $Id$
   #
   # Copyright Michigan State University Board of Trustees
   #
   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
   #
 package Apache::optionresponse;  package Apache::optionresponse;
 use strict;  use strict;
   use Apache::response;
   
 sub BEGIN {  BEGIN {
   &Apache::lonxml::register('Apache::optionresponse',('optionresponse'));    &Apache::lonxml::register('Apache::optionresponse',('optionresponse'));
 }  }
   
 sub start_optionresponse {  sub start_optionresponse {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   #when in a radiobutton response use these    my $result='';
     #when in a option response use these
   &Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup'));    &Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup'));
     push (@Apache::lonxml::namespace,'optionresponse');
   my $id = &Apache::response::start_response($parstack,$safeeval);    my $id = &Apache::response::start_response($parstack,$safeeval);
   return '';    %Apache::hint::option=();
     if ($target eq 'edit') {
       $result.=&Apache::edit::start_table($token).
    "<tr><td>Multiple Option Response Question</td><td>Delete:".
    &Apache::edit::deletelist($target,$token)
    ."</td><td>&nbsp;".
           &Apache::edit::end_row().
           &Apache::edit::start_spanning_row().
           "\n";
       $result.=&Apache::edit::text_arg('Max Number Of Shown Foils:','max',
        $token,'4').
           &Apache::edit::select_arg('Randomize Foil Order','randomize',
     ['yes','no'],$token).
           &Apache::edit::end_row().&Apache::edit::start_spanning_row();
     } elsif ($target eq 'modified') {
       my $constructtag=&Apache::edit::get_new_args($token,$parstack,
    $safeeval,'max','randomize');
       if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
     } elsif ($target eq 'meta') {
       $result=&Apache::response::meta_package_write('optionresponse');
     } elsif ($target eq 'analyze') {
       my $part_id="$Apache::inputtags::part.$id";
       push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
     }
     return $result;
 }  }
   
 sub end_optionresponse {  sub end_optionresponse {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   &Apache::response::end_response;    &Apache::response::end_response;
   return '';    pop @Apache::lonxml::namespace;
     &Apache::lonxml::deregister('Apache::optionresponse',('foilgroup','foil','conceptgroup'));
     my $result;
     if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
     return $result;
 }  }
   
 %Apache::response::foilgroup={};  %Apache::response::foilgroup=();
 sub start_foilgroup {  sub start_foilgroup {
   %Apache::response::foilgroup={};    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   return '';  
 }  
   
 sub setrandomnumber {    my $result='';
   my $rndseed=&Apache::lonnet::rndseed();    %Apache::response::foilgroup=();
   $rndseed=unpack("%32i",$rndseed);    $Apache::optionresponse::conceptgroup=0;
   $rndseed=$rndseed    &Apache::response::setrandomnumber();
     +&Apache::lonnet::numval($Apache::inputtags::part)    if ($target eq 'edit') {
       +&Apache::lonnet::numval($Apache::inputtags::response['-1']);      my $optionlist="<option></option>\n";
   srand($rndseed);      my $option;
   return '';      my @opt;
       eval '@opt ='. &Apache::lonxml::get_param('options',$parstack,$safeeval);
       my $count=1;
       foreach $option (@opt) {
         $optionlist.="<option value=\"$count\">$option</option>\n";
         $count++;
       }
       my $insertlist=&Apache::edit::insertlist($target,$token);
       $result.=&Apache::edit::start_table($token);
       $result.= (<<ENDTABLE);
         <tr><td>Select Options</td>
           <td>
     Add new Option: <input type="text" name="$Apache::lonxml::curdepth.options" />
           </td>
           <td>Delete an Option:
     <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>
   ENDTABLE
       $result.= &Apache::edit::end_row();
       $result.= &Apache::edit::start_spanning_row();
       $result.= $insertlist.'<br />';
     }
     if ($target eq 'modified') {
       my @options;
       my $optchanged=0;
       eval '@options ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
       if ($ENV{"form.$Apache::lonxml::curdepth.deleteopt"}) {
         my $delopt=$ENV{"form.$Apache::lonxml::curdepth.deleteopt"};
         &Apache::lonxml::debug("Deleting :$delopt:");
         splice(@options,$delopt-1,1);
         $optchanged=1;
       }
       if ($ENV{"form.$Apache::lonxml::curdepth.options"}) {
         my $newopt = $ENV{"form.$Apache::lonxml::curdepth.options"};
         if ($options[0]) {
    push(@options,$newopt);
         } else {
    $options[0]=$newopt;
         }
         $optchanged=1;
       }
       if ($optchanged) {
         $result = "<foilgroup options=\"(";
         foreach my $option (@options) {
    $option=~s/\'/\\\'/g;
    &Apache::lonxml::debug("adding option :$option:");
    $result .="'".$option."',";
         }
         chop $result;
         $result.=')">';
       } # else nothing changed so just use the default mechanism
     }
     if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
         $result .= ' \begin{enumerate} ';
     }
     return $result;
 }  }
   
 sub end_foilgroup {  sub end_foilgroup {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       
   my $result;    my $result;
   if ($target ne 'meta') {    if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
         $target eq 'tex' || $target eq 'analyze') {
       my $tex_option_switch=&Apache::lonxml::get_param('texoptions',$parstack,$safeeval);
     my $name;      my $name;
     &setrandomnumber();  
     my ($count,$max) = &getfoilcounts($parstack,$safeeval);  
     if ($count>$max) { $count=$max }   
     &Apache::lonxml::debug("Count is $count from $max");  
     my $args ='';  
     if ( $#$parstack > 0 ) { $args=$$parstack['-1']; }  
     my @opt;      my @opt;
     eval '@opt ='.&Apache::run::run("{$args;".'return $options}',$safeeval);      eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
     if ($target eq 'web') {      if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}
       $result=&displayfoils($count,@opt);      &Apache::lonxml::debug("Options are $#opt");
       my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
       my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
          $safeeval,'-2');
       if ($target eq 'web' || $target eq 'tex') {
         $result.=&displayfoils($target,$max,$randomize,@opt);
       } elsif ( $target eq 'answer') {
         $result.=&displayanswers($max,$randomize,@opt);
       } elsif ( $target eq 'analyze') {
    my @shown = &whichfoils($max,$randomize);
    &Apache::response::analyze_store_foilgroup(\@shown,
     ['text','value','location']);
    my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
    push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },@opt);
     } elsif ( $target eq 'grade') {      } elsif ( $target eq 'grade') {
       if ( defined $ENV{'form.submitted'}) {        if ( defined $ENV{'form.submitted'}) {
  my @whichopt = &whichfoils($count);   my @whichopt = &whichfoils($max,$randomize);
  my $temp=1;my $name;   my $temp=1;my $name;
  my $allresponse;   my %responsehash;
    my %grade;
  my $right=0;   my $right=0;
  my $wrong=0;   my $wrong=0;
    my $ignored=0;
  foreach $name (@whichopt) {   foreach $name (@whichopt) {
   my $response = $ENV{'form.HWVAL_'.$Apache::inputtags::response['-1'].":$temp"};    my $response=&Apache::response::getresponse($temp);
   $allresponse.="$response:";    if ($ENV{'form.submitted'} eq 'scantron') {
         $response = $opt[$response];
     }
   if ( $response =~ /[^\s]/) {    if ( $response =~ /[^\s]/) {
     &Apache::lonxml::debug("submitted a $response<br>\n");      $responsehash{$name}=$response;
     my $value=$Apache::response::foilgroup{$name.'.value'};      my $value=$Apache::response::foilgroup{$name.'.value'};
     if ($value eq $response) {$right++;} else {$wrong++;}      &Apache::lonxml::debug("submitted a $response for $value<br />\n");
       if ($value eq $response) {
    $grade{$name}='1'; $right++;
       } else {
    $grade{$name}='0'; $wrong++;
       }
     } else {
       $ignored++;
   }    }
   $temp++;    $temp++;
  }   }
    my $part=$Apache::inputtags::part;
  my $id = $Apache::inputtags::response['-1'];   my $id = $Apache::inputtags::response['-1'];
  $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$allresponse;   my $responsestr=&Apache::lonnet::hash2str(%responsehash);
  &Apache::lonxml::debug("Got $right right and $wrong wrong");   my $gradestr   =&Apache::lonnet::hash2str(%grade);
  if ($wrong==0) {   my %previous=&Apache::response::check_for_previous($responsestr,
   $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='EXACT_ANS';     $part,$id);
    &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");
    $Apache::lonhomework::results{"resource.$part.$id.submission"}=
       $responsestr;
    $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
   
    if (!$Apache::lonhomework::scantronmode) {
       my $ad;
       if ($wrong==0 && $ignored==0) {
    $ad='EXACT_ANS';
       } elsif ($wrong==0 && $right==0) {
    #nothing submitted
       } else {
    if ($ignored==0) {
       $ad='INCORRECT';
    } else {
       $ad='MISSING_ANSWER';
    }
       }
       $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
       &Apache::response::handle_previous(\%previous,$ad);
  } else {   } else {
   $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='INCORRECT';      my $ad;
       if ($wrong==0 && $right==0) {
    #nothing submitted
       } else {
    $ad='ASSIGNED_SCORE';
       }
       $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
       $Apache::lonhomework::results{"resource.$part.$id.awarded"}=
    $right/(scalar(@whichopt));
       $Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
    scalar(@whichopt);
  }   }
       }        }
     }      }
       &Apache::lonxml::increment_counter(&getfoilcounts($max));
     } elsif ($target eq 'edit') {
       $result.=&Apache::edit::end_table();
     }
     if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
         $result .= '\end{enumerate}';
   }    }
   return $result;    return $result;
 }  }
   
 sub getfoilcounts {  sub getfoilcounts {
   my ($parstack,$safeeval)=@_;    my ($max)=@_;
   my $rrargs ='';    # +1 since instructors will count from 1
   if ( $#$parstack > 0 ) { $rrargs=$$parstack['-2']; }    my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
   my $max = &Apache::run::run("{$rrargs;".'return $max}',$safeeval);    if (&Apache::response::showallfoils()) { $max=$count; }
   my $count = $#{ $Apache::response::foilgroup{'names'} };    if ($count>$max) { $count=$max } 
   return ($count,$max);    &Apache::lonxml::debug("Count is $count from $max");
     return $count;
 }  }
   
 sub whichfoils {  sub whichfoils {
   my ($max)=@_;      my ($max,$randomize)=@_;
       return &Apache::response::whichorder($max,$randomize,
    &Apache::response::showallfoils(),
    \%Apache::response::foilgroup);
   }
   
   sub displayanswers {
     my ($max,$randomize,@opt)=@_;
     if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
   my @names = @{ $Apache::response::foilgroup{'names'} };    my @names = @{ $Apache::response::foilgroup{'names'} };
   my @whichopt =();    my @whichopt = &whichfoils($max,$randomize);
   while ((($#whichopt+1) < $max) && ($#names > -1)) {    my $result=&Apache::response::answer_header('optionresponse');
     my $aopt=int rand $#names;    foreach my $name (@whichopt) {
     &Apache::lonxml::debug("From $#names elms, picking $aopt");      $result.=&Apache::response::answer_part('optionresponse',
     $aopt=splice(@names,$aopt,1);       $Apache::response::foilgroup{$name.'.value'})
     &Apache::lonxml::debug("Picked $aopt");  
     push (@whichopt,$aopt);  
   }    }
   return @whichopt;    $result.=&Apache::response::answer_footer('optionresponse');
     return $result;
 }  }
   
 sub displayfoils {  sub displayfoils {
   my ($max,@opt)=@_;    my ($target,$max,$randomize,@opt)=@_;
     if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
   my @names = @{ $Apache::response::foilgroup{'names'} };    my @names = @{ $Apache::response::foilgroup{'names'} };
   my @truelist;    my @truelist;
   my @falselist;    my @falselist;
   my $result;    my $result;  
   my $name;    my $name;
   my @whichopt = &whichfoils($max);    my $displayoptionintex=0;
   my $optionlist="<option></option>\n";    my @alphabet = ('A'..'Z');
   my $option;    my @whichopt = &whichfoils($max,$randomize);
   foreach $option (@opt) {    my $part=$Apache::inputtags::part;
     $optionlist.="<option>$option</option>\n";    my $id=$Apache::inputtags::response[-1];
   }    my $break;
   if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) {    my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
     if ( ($target ne 'tex') &&
          &Apache::response::show_answer() ) {
       my $temp=1;
     foreach $name (@whichopt) {      foreach $name (@whichopt) {
       $result.="<br />".$Apache::response::foilgroup{$name.'.value'}.   my $text=$Apache::response::foilgroup{$name.'.text'};
  ":".$Apache::response::foilgroup{$name.'.text'}."\n";   my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
    my $lastopt=$lastresponse{$name};
    if ($text!~/^\s*$/) {
       if ($target eq 'tex') {
    $break='\vskip 0 mm ';
       } elsif ($target eq 'web') {
    $break='<br />';
       }
    }
    $result.=$break;
    if ($target eq 'web') {
       my $value=$Apache::response::foilgroup{$name.'.value'};
       if (!($text=~s|<drawoptionlist\s*/>|$value|)) {
    if ($text=~/^\s*$/) {
       $text=$value.$text;
    } else {
       $text=$value.': '.$text;
    }
       } else {
    $text='&#149;'.$text;
       }
       $result.=$text."\n";
         } elsif ($target eq 'tex') {
     $Apache::response::foilgroup{$name.'.text'}=~s/\\item//;
     if ($max>1) {$result .='\item ';}
      $result .=' \textit{'.$Apache::response::foilgroup{$name.'.value'}.'}'.
         ":".$Apache::response::foilgroup{$name.'.text'}."\n";
         }
         if ($Apache::lonhomework::type eq 'exam') {
    if ($target ne 'tex') {
     $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
           } else {
     $result.=&bubbles(\@alphabet,\@opt);
           }
         }
         $temp++;
     }      }
   } else {    } else {
     my $temp=1;      my $temp=1;
       my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
       my $internal_counter=$Apache::lonxml::counter;
     foreach $name (@whichopt) {      foreach $name (@whichopt) {
       $result.="<br /><select name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\">"        my $text=$Apache::response::foilgroup{$name.'.text'};
  .$optionlist        if ($text!~/^\s*$/) {
   ."</select>\n".$Apache::response::foilgroup{$name.'.text'}."\n";    if ($target eq 'tex') {
       $temp++;        $break='\vskip 0 mm ';
     } elsif ($target eq 'web') {
         $break='<br />';
     }
         }
         my $lastopt=$lastresponse{$name};
         my $optionlist="<option></option>\n";
         my $option;
         foreach $option (@opt) {
    if ($option eq $lastopt) {
     $optionlist.="<option selected=\"on\">$option</option>\n";
    } else {
     $optionlist.="<option>$option</option>\n";
    }
         }
         if ($target ne 'tex') {
     if ($Apache::lonhomework::type ne 'exam') {
       $optionlist='<select name="HWVAL_'.
         $Apache::inputtags::response['-1'].':'.$temp.'">'.
     $optionlist."</select>\n";
     }
     my $text=$Apache::response::foilgroup{$name.'.text'};
     if (!($text=~s|<drawoptionlist\s*/>|$optionlist|) && $Apache::lonhomework::type ne 'exam') {
         $text=$optionlist.$text;
     } else {
         $text='&#149;'.$text;
     }
     $result.=$break.$text."\n";
     if ($Apache::lonhomework::type eq 'exam') {
       $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
     }
     $temp++;
         } else {
             my $texoptionlist = &optionlist_correction($optionlist);
     if ($displayoptionintex == 0) {
         if ($Apache::lonhomework::type eq 'exam') {$texoptionlist='';} #if exam we do not need to show optionlist
         if ($Apache::response::foilgroup{$name.'.text'}=~m/\\item /) {
    if ($Apache::lonhomework::type eq 'exam') {
             $Apache::response::foilgroup{$name.'.text'}=~s/\\item/\\vskip 2 mm/;
           }
           if ($Apache::response::foilgroup{$name.'.text'}=~/<drawoptionlist\s*\/>/) {
             $Apache::response::foilgroup{$name.'.text'}=~s|<drawoptionlist\s*/>| \\makebox\[0\.3in\]\[b\]\{\\hrulefill\} |;
           }
    $result.= $texoptionlist.$Apache::response::foilgroup{$name.'.text'};
         } else {
     if ($Apache::lonhomework::type eq 'exam') {
         $result.= $texoptionlist.'  '.$Apache::response::foilgroup{$name.'.text'};
     } else {
         $result.= $texoptionlist.'\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
     }
         }
         if ($Apache::lonhomework::type eq 'exam') {
     $result.='\vskip -2 mm\parbox{\textwidth}{\begin{enumerate}\item[\textbf{'.$internal_counter.'}.]\parbox{\textwidth - 5 mm}{'.&bubbles(\@alphabet,\@opt).'}\end{enumerate}} \vskip -9 mm \strut ';
     $internal_counter++;
         }
         $displayoptionintex=1;
     } else {
         if ($Apache::response::foilgroup{$name.'.text'}=~m/\\item /) {
     if ($Apache::lonhomework::type eq 'exam') {
         $Apache::response::foilgroup{$name.'.text'}=~s/\\item//;
     }
           if ($Apache::response::foilgroup{$name.'.text'}=~/<drawoptionlist\s*\/>/) {
             $Apache::response::foilgroup{$name.'.text'}=~s|<drawoptionlist\s*/>| \\makebox\[0\.3in\]\[b\]\{\\hrulefill\} |;
           }
    $result.= $Apache::response::foilgroup{$name.'.text'};
         } else {
     if ($Apache::lonhomework::type eq 'exam') {
         $result.= '  '.$Apache::response::foilgroup{$name.'.text'};
     } else {
         $result.= '\item '.$Apache::response::foilgroup{$name.'.text'};
     }
         }
         if ($Apache::lonhomework::type eq 'exam') {
     $result.='\vskip -2 mm \parbox{\textwidth}{\begin{enumerate}\item[\textbf{'.$internal_counter.'}.]\parbox{\textwidth - 5 mm}{'.&bubbles(\@alphabet,\@opt).'}\end{enumerate}} \vskip -9 mm \strut ';
     $internal_counter++;
         }
     }
         }
     }      }
   }    }
   return $result."<br />";    if ($target ne 'tex') {
         return $result.$break;
     } else {
         return $result;
     }
   }
   
   
   sub optionlist_correction {
   
       my $texoptionlist = shift;
       if ($texoptionlist=~/<option selected/ or $texoptionlist=~/<option>[^<]+<\/option>/) {
    $texoptionlist =~ s/<option><\/option>/\\item \[\] Choices: /;
    $texoptionlist =~ s/<option>/\{\\bf /g;
    $texoptionlist =~ s/<option selected="on">/\{\\bf /g;
    $texoptionlist =~ s/<\/option>/\},/g;
    $texoptionlist =~ s/,$/\./g;
    $texoptionlist =~ s/>/\$>\$/g;
    $texoptionlist =~ s/</\$<\$/g;
    $texoptionlist =~ s/=/\$=\$/g;
    $texoptionlist =~ s/\^(\d+)/<m>\$$1\$<\/m>/g;
       } else {
    $texoptionlist =~ s/<option><\/option>/\\item \[\] \\vskip -5 mm/;
       }
       return $texoptionlist;
   }
   
   
   sub webbubbles {
   
       my ($ropt,$ralphabet,$temp,$lastopt)=@_;
       my @opt=@$ropt; 
       my @alphabet=@$ralphabet;
       my $result='';
       my $number_of_bubbles = $#opt + 1;
       $result.= '<table border="1"><tr>';
       for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
    my $checked='';
    if ($lastopt eq $opt[$ind]) {
       $checked=' checked="on" ';
    }
    $result.='<td><input type="radio" name="HWVAL_'.
       $Apache::inputtags::response['-1'].':'.$temp.
       '" value="'.$opt[$ind].'" '.$checked.' />'.$alphabet[$ind].': '.
       $opt[$ind].'</td>';
       }
       $result.='</tr></table>';
       return $result;
 }  }
   
   
   sub bubbles {
   
       my ($ralphabit,$ropt) = @_;
       my @alphabet = @$ralphabit;
       my @opt = @$ropt;
       my ($result,$head,$line) =('','','');
       my $number_of_bubbles = $#opt + 1;
       my $current_length = 0;
       for (my $ind=0;$ind<=$number_of_bubbles;$ind++) {
    $current_length += (length($opt[$ind])+length($alphabet[$ind])+2)*2;
    if ($current_length<0.9*$ENV{'form.textwidth'} and $ind!=$number_of_bubbles) {
       $line.='\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';
       $head.='lr';
    } else {
       $line=~s/\&\s*$//;
       $result.='\vskip -5 mm\begin{tabular}{'.$head.'}\\\\'.$line.'\\\\\end{tabular}';
       $line = '\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';;
       $head ='lr';
       $current_length = (length($opt[$ind])+length($alphabet[$ind]))*2;
    }
   
       }
       return $result;
   }
   
   
 sub start_conceptgroup {  sub start_conceptgroup {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     $Apache::optionresponse::conceptgroup=1;
     %Apache::response::conceptgroup=();
     my $result;
     if ($target eq 'edit') {
       $result.=&Apache::edit::tag_start($target,$token,"Concept Grouped Foils");
       $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
           &Apache::edit::end_row().&Apache::edit::start_spanning_row();
     }
     if ($target eq 'modified') {
       my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');
       if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
     }
     return $result;
 }  }
   
 sub end_conceptgroup {  sub end_conceptgroup {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     $Apache::optionresponse::conceptgroup=0;
     my $result='';
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
         $target eq 'tex' || $target eq 'analyze') {
       #if not there aren't any foils to display and thus no question
         &Apache::response::pick_foil_for_concept($target,
          ['value','text','location'],
          \%Apache::hint::option,
          $parstack,$safeeval);
     } elsif ($target eq 'edit') {
       $result=&Apache::edit::end_table();
     }
     return $result;
   }
   
   sub insert_conceptgroup {
     my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
     return $result;
 }  }
   
 sub start_foil {  sub start_foil {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web') {     my $result='';
     $Apache::lonxml::redirection--;     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {
   }      &Apache::lonxml::startredirection;
   return '';    } elsif ($target eq 'edit') {
       $result=&Apache::edit::tag_start($target,$token,"Foil");
       my $level='-2';
       if ($$tagstack['-2'] eq 'conceptgroup') { $level = '-3'; }
       my @opt;
       eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval,$level);
       $result.=&Apache::edit::text_arg('Name:','name',$token);
       $result.= &Apache::edit::select_or_text_arg('Correct Option:','value',
          ['unused',(@opt)],$token,'15');
       my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
        $safeeval,'-3');
       if ($randomize ne 'no') {
    $result.=&Apache::edit::select_arg('Location:','location',
      ['random','top','bottom'],$token);
       }
       $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
     } elsif ($target eq 'modified') {
       my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
    'value','name','location');
       if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
     } 
     return $result;
 }  }
   
 sub end_foil {  sub end_foil {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web' || $target eq 'grade') {    my $text ='';
     my $args ='';    my $result = '';
     if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }    if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
     my $value = &Apache::run::run("{$args;".'return $value}',$safeeval);        $text=&Apache::lonxml::endredirection;
         if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') { $text = '\vspace*{-2 mm}\item '.$text; }
     }
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' 
         || $target eq 'tex' || $target eq 'analyze') {
       my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
     if ($value ne 'unused') {      if ($value ne 'unused') {
       my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);        my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
       push @{ $Apache::response::foilgroup{'names'} }, $name;        my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
       $Apache::response::foilgroup{"$name.value"} = $value;        &Apache::lonxml::debug("Got a name of :$name:");
       $Apache::response::foilgroup{"$name.text"} = $Apache::lonxml::outputstack;        if (!$name) { $name=$Apache::lonxml::curdepth; }
         &Apache::lonxml::debug("Using a name of :$name:");
         if ( $Apache::optionresponse::conceptgroup
      && !&Apache::response::showallfoils() ) {
    push @{ $Apache::response::conceptgroup{'names'} }, $name;
    $Apache::response::conceptgroup{"$name.value"} = $value;
    if ($target eq 'tex' and $Apache::lonhomework::type eq 'exam') {
       $Apache::response::conceptgroup{"$name.text"} = '\vskip 4 mm $\triangleright$ '.$text;
    } else {
       $Apache::response::conceptgroup{"$name.text"} = $text;
    }
    $Apache::response::conceptgroup{"$name.location"} = $location;
         } else {
    push @{ $Apache::response::foilgroup{'names'} }, $name;
    $Apache::response::foilgroup{"$name.value"} = $value;
    if ($target eq 'tex' and $Apache::lonhomework::type eq 'exam') {
       $Apache::response::foilgroup{"$name.text"} = '\vskip 5 mm $\triangleright$ '.$text;
    } else {
       $Apache::response::foilgroup{"$name.text"} = $text;
    }
    $Apache::response::foilgroup{"$name.location"} = $location;
         }
     }      }
   }    }
   if ($target eq 'web' ) {    if ($target eq 'edit') {
     $Apache::lonxml::redirection++;      $result.= &Apache::edit::tag_end($target,$token,'');
     if ($Apache::lonxml::redirection == 1) {   
       $Apache::lonxml::outputstack='';   
     }  
   }    }
   return '';    return $result;
 }  }
   
   sub insert_foil {
     return '
   <foil name="" value="unused">
   <startouttext />
   <endouttext />
   </foil>';
   }
 1;  1;
 __END__  __END__
     
Removed from v.1.2  
changed lines
  Added in v.1.96

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.