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Diff for /loncom/homework/optionresponse.pm between versions 1.29 and 1.126

version 1.29, 2001/12/14 23:00:52 version 1.126, 2005/06/07 01:33:19
Line 1 Line 1
 # The LearningOnline Network with CAPA  # LearningOnline Network with CAPA
 # option list style responses  # option list style responses
 #  #
 # $Id$  # $Id$
Line 25 Line 25
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
 # 2/21 Guy  
 package Apache::optionresponse;  package Apache::optionresponse;
 use strict;  use strict;
 use Apache::response;  use Apache::response();
   use Apache::lonlocal;
   use Apache::lonnet;
   
 sub BEGIN {  BEGIN {
   &Apache::lonxml::register('Apache::optionresponse',('optionresponse'));    &Apache::lonxml::register('Apache::optionresponse',('optionresponse'));
 }  }
   
Line 38  sub start_optionresponse { Line 39  sub start_optionresponse {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result='';    my $result='';
   #when in a option response use these    #when in a option response use these
   &Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup'));    &Apache::lonxml::register('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
   push (@Apache::lonxml::namespace,'optionresponse');    push (@Apache::lonxml::namespace,'optionresponse');
   my $id = &Apache::response::start_response($parstack,$safeeval);    my $id = &Apache::response::start_response($parstack,$safeeval);
     %Apache::hint::option=();
     undef(%Apache::response::foilnames);
   if ($target eq 'edit') {    if ($target eq 'edit') {
     $result.=&Apache::edit::start_table($token).      $result.=&Apache::edit::start_table($token).
       "<tr><td>Multiple Option Response Question</td><td>Delete:".   "<tr><td>Multiple Option Response Question ".
    &Apache::loncommon::help_open_topic('Option_Response_Problems')."</td><td>Delete:".
  &Apache::edit::deletelist($target,$token)   &Apache::edit::deletelist($target,$token)
   ."</td><td>&nbsp;</td></tr><tr><td colspan=\"3\">\n";   ."</td><td>&nbsp;".
     $result.=&Apache::edit::text_arg('Max Number Of Foils:','max',$token,'4').          &Apache::edit::end_row().
       "</td></tr>";          &Apache::edit::start_spanning_row().
     $result.="<tr><td colspan=\"3\">\n";          "\n";
   }      $result.=&Apache::edit::text_arg('Max Number Of Shown Foils:','max',
   if ($target eq 'modified') {       $token,'4').
           &Apache::edit::select_arg('Randomize Foil Order','randomize',
     ['yes','no'],$token).
           &Apache::edit::select_arg(&mt('Display of options when printed'),'TeXlayout',
     [['horizontal',&mt('Normal list')],
      ['vertical',&mt('Listed in a vertical column')]],$token).
           &Apache::edit::end_row().&Apache::edit::start_spanning_row();
     } elsif ($target eq 'modified') {
     my $constructtag=&Apache::edit::get_new_args($token,$parstack,      my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  $safeeval,'max');   $safeeval,'max','randomize',
    'TeXlayout');
     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }      if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
   }    } elsif ($target eq 'meta') {
   if ($target eq 'meta') {  
     $result=&Apache::response::meta_package_write('optionresponse');      $result=&Apache::response::meta_package_write('optionresponse');
     } elsif ($target eq 'analyze') {
       my $part_id="$Apache::inputtags::part.$id";
       push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
   }    }
   return $result;    return $result;
 }  }
Line 65  sub end_optionresponse { Line 79  sub end_optionresponse {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   &Apache::response::end_response;    &Apache::response::end_response;
   pop @Apache::lonxml::namespace;    pop @Apache::lonxml::namespace;
   &Apache::lonxml::deregister('Apache::optionresponse',('foilgroup','foil','conceptgroup'));    &Apache::lonxml::deregister('Apache::optionresponse',('foilgroup','foil','conceptgroup','drawoptionlist'));
   my $result;    my $result;
   if ($target eq 'edit') { $result=&Apache::edit::end_table(); }    if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
     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)=@_;
   
   my $result='';    my $result='';
   %Apache::response::foilgroup={};    %Apache::response::foilgroup=();
   $Apache::optionresponse::conceptgroup=0;    $Apache::optionresponse::conceptgroup=0;
   &Apache::response::setrandomnumber();    &Apache::response::pushrandomnumber();
   if ($target eq 'edit') {    if ($target eq 'edit') {
     my $optionlist="<option></option>\n";      my $optionlist="<option></option>\n";
     my $option;      my $option;
Line 98  sub start_foilgroup { Line 113  sub start_foilgroup {
         </td>          </td>
         <td>Delete an Option:          <td>Delete an Option:
   <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>    <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>
         </td>  
      </tr>  
      <tr><td colspan="3">$insertlist<br />  
 ENDTABLE  ENDTABLE
       $result.= &Apache::edit::end_row();
       $result.= &Apache::edit::start_spanning_row();
       $result.= $insertlist.'<br />';
   }    }
   if ($target eq 'modified') {    if ($target eq 'modified') {
     my @options;      my @options;
     my $optchanged=0;      my $optchanged=0;
     eval '@options ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);      eval '@options ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
     if ($ENV{"form.$Apache::lonxml::curdepth.deleteopt"}) {      if ($env{"form.$Apache::lonxml::curdepth.deleteopt"}) {
       my $delopt=$ENV{"form.$Apache::lonxml::curdepth.deleteopt"};        my $delopt=$env{"form.$Apache::lonxml::curdepth.deleteopt"};
       &Apache::lonxml::debug("Deleting :$delopt:");        &Apache::lonxml::debug("Deleting :$delopt:");
       splice(@options,$delopt-1,1);        splice(@options,$delopt-1,1);
       $optchanged=1;        $optchanged=1;
     }      }
     if ($ENV{"form.$Apache::lonxml::curdepth.options"}) {      if ($env{"form.$Apache::lonxml::curdepth.options"}) {
       my $newopt = $ENV{"form.$Apache::lonxml::curdepth.options"};        my $newopt = $env{"form.$Apache::lonxml::curdepth.options"};
       if ($options[0]) {        if ($options[0]) {
  push(@options,$newopt);   push(@options,$newopt);
       } else {        } else {
Line 125  ENDTABLE Line 140  ENDTABLE
     if ($optchanged) {      if ($optchanged) {
       $result = "<foilgroup options=\"(";        $result = "<foilgroup options=\"(";
       foreach my $option (@options) {        foreach my $option (@options) {
  $option=~s/\'/\\\'/;   $option=~s/\'/\\\'/g;
  &Apache::lonxml::debug("adding option :$option:");   &Apache::lonxml::debug("adding option :$option:");
  $result .="'".$option."',";   $result .="'".$option."',";
       }        }
Line 133  ENDTABLE Line 148  ENDTABLE
       $result.=')">';        $result.=')">';
     } # else nothing changed so just use the default mechanism      } # else nothing changed so just use the default mechanism
   }    }
     if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
         $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
                      \begin{enumerate} ';
     }
   return $result;    return $result;
 }  }
   
Line 140  sub end_foilgroup { Line 159  sub end_foilgroup {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       
   my $result;    my $result;
   if ($target eq 'grade' || $target eq 'web' || $target eq 'answer') {    if ($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 $name;
     my ($count,$max) = &getfoilcounts($parstack,$safeeval);  
     if ($count>$max) { $count=$max }   
     &Apache::lonxml::debug("Count is $count from $max");  
     my @opt;      my @opt;
     eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);      eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
       &Apache::lonxml::debug("options:".join(':',@opt));
   
       my $TeXlayout=&Apache::lonxml::get_param('TeXlayout',$parstack,$safeeval,
        -2,0);
       if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}
     &Apache::lonxml::debug("Options are $#opt");      &Apache::lonxml::debug("Options are $#opt");
     if ($target eq 'web') {      my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
       $result.=&displayfoils($count,@opt);      my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
          $safeeval,'-2');
       if ($target eq 'web' || $target eq 'tex') {
         $result.=&displayfoils($target,$max,$randomize,$TeXlayout,@opt);
     } elsif ( $target eq 'answer') {      } elsif ( $target eq 'answer') {
       $result.=&displayanswers($count,@opt);        $result.=&displayanswers($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 $ENV{'form.submitted'}) {        if ( &Apache::response::submitted()) {
  my @whichopt = &whichfoils($count);   my @whichopt = &whichfoils($max,$randomize);
  my $temp=1;my $name;   my $temp=1;my $name;
  my %responsehash;   my %responsehash;
    my %grade;
  my $right=0;   my $right=0;
  my $wrong=0;   my $wrong=0;
  my $ignored=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);
   $responsehash{$name}=$response;    if ($env{'form.submitted'} eq 'scantron' && $response=~/\S/) {
         $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 {    } else {
     $ignored++;      $ignored++;
   }    }
Line 175  sub end_foilgroup { Line 215  sub end_foilgroup {
  my $part=$Apache::inputtags::part;   my $part=$Apache::inputtags::part;
  my $id = $Apache::inputtags::response['-1'];   my $id = $Apache::inputtags::response['-1'];
  my $responsestr=&Apache::lonnet::hash2str(%responsehash);   my $responsestr=&Apache::lonnet::hash2str(%responsehash);
    my $gradestr   =&Apache::lonnet::hash2str(%grade);
  my %previous=&Apache::response::check_for_previous($responsestr,   my %previous=&Apache::response::check_for_previous($responsestr,
    $part,$id);     $part,$id);
  &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");   &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored");
  my $ad;   $Apache::lonhomework::results{"resource.$part.$id.submission"}=
  if ($wrong==0 && $ignored==0) {      $responsestr;
   $ad='EXACT_ANS';   $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
  } elsif ($wrong==0 && $right==0) {  
   #nothing submitted   if ($Apache::lonhomework::type eq 'survey') {
       if ($ignored == 0) {
    my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
    &Apache::response::handle_previous(\%previous,$ad);
       } elsif ($wrong==0 && $right==0) {
       } else {
    my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
    &Apache::response::handle_previous(\%previous,$ad);
       }
    } elsif (!$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 {
   $ad='INCORRECT';      my $ad;
       if ($wrong==0 && $right==0) {
    #nothing submitted only assign a score if we 
    #need to override a previous grade
    if (defined($Apache::lonhomework::history{"resource.$part.$id.awarddetail"})) {
       $ad='ASSIGNED_SCORE';
    }
       } 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);
  }   }
  $Apache::lonhomework::results{"resource.$part.$id.submission"}=  
   $responsestr;  
  $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=  
   $ad;  
  &Apache::response::handle_previous(\%previous,$ad);  
       }        }
     }      }
       &Apache::lonxml::increment_counter(&getfoilcounts($max));
   } elsif ($target eq 'edit') {    } elsif ($target eq 'edit') {
     $result.=&Apache::edit::end_table();      $result.=&Apache::edit::end_table();
   }    }
     if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
         $result .= '\end{enumerate}';
     }
     &Apache::response::poprandomnumber();
   return $result;    return $result;
 }  }
   
 sub getfoilcounts {  sub getfoilcounts {
   my ($parstack,$safeeval)=@_;    my ($max)=@_;
   my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');  
   # +1 since instructors will count from 1    # +1 since instructors will count from 1
   my $count = $#{ $Apache::response::foilgroup{'names'} }+1;    my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
   return ($count,$max);    if (&Apache::response::showallfoils()) { $max=$count; }
     if ($count>$max) { $count=$max } 
     &Apache::lonxml::debug("Count is $count from $max");
     return $count;
 }  }
   
 sub whichfoils {  sub whichfoils {
   my ($max)=@_;      my ($max,$randomize)=@_;
   my @names = @{ $Apache::response::foilgroup{'names'} };      return &Apache::response::whichorder($max,$randomize,
   my @whichopt =();   &Apache::response::showallfoils(),
   while ((($#whichopt+1) < $max) && ($#names > -1)) {   \%Apache::response::foilgroup);
     &Apache::lonxml::debug("Have $#whichopt max is $max");  
     my $aopt=int(rand($#names+1));  
     &Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");  
     $aopt=splice(@names,$aopt,1);  
     &Apache::lonxml::debug("Picked $aopt");  
     push (@whichopt,$aopt);  
   }  
   return @whichopt;  
 }  }
   
 sub displayanswers {  sub displayanswers {
   my ($max,@opt)=@_;    my ($max,$randomize,@opt)=@_;
     if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
   my @names = @{ $Apache::response::foilgroup{'names'} };    my @names = @{ $Apache::response::foilgroup{'names'} };
   my @whichopt = &whichfoils($max);    my @whichopt = &whichfoils($max,$randomize);
   my $result=&Apache::response::answer_header('optionresponse');    my $result=&Apache::response::answer_header('optionresponse');
   foreach my $name (@whichopt) {    foreach my $name (@whichopt) {
     $result.=&Apache::response::answer_part('optionresponse',      $result.=&Apache::response::answer_part('optionresponse',
Line 235  sub displayanswers { Line 308  sub displayanswers {
   return $result;    return $result;
 }  }
   
   sub check_for_invalid {
       my ($names,$options) = @_;
       my %bad_names;
       foreach my $name (@{ $names }) {
    my $value=$Apache::response::foilgroup{$name.'.value'};
    my $found=0;
    foreach my $option (@{ $options }) {
       if ($value eq $option) { $found=1; }
    }
    if (!$found) { $bad_names{$name}=$value; }
       }
       if (%bad_names) {
    my $error=&mt('The question can not be gotten correct, '.
       'the following foils in the &lt;optionresponse&gt; '.
       'have invalid correct options').' <br /><tt>'.
       join('<br />',(map { $_=&mt("[_1] with value [_2]",$_,$bad_names{$_}) } (keys(%bad_names)))).
       "</tt>";
    &Apache::lonxml::error($error);
       }
   }
   
 sub displayfoils {  sub displayfoils {
   my ($max,@opt)=@_;    my ($target,$max,$randomize,$TeXlayout,@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 $displayoptionintex=1;
     my @alphabet = ('A'..'Z');
     my @whichopt = &whichfoils($max,$randomize);
     &check_for_invalid(\@whichopt,\@opt);
   my $part=$Apache::inputtags::part;    my $part=$Apache::inputtags::part;
   my $id=$Apache::inputtags::response[-1];    my $id=$Apache::inputtags::response[-1];
   if (($Apache::lonhomework::history{"resource.$part.solved"} =~ /^correct/)  || ($Apache::inputtags::status[-1] eq  'SHOW_ANSWER')) {    my $break;
     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*$/) { $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";
    }
         if ($Apache::lonhomework::type eq 'exam') {
     $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
         }
         $temp++;
     }      }
   } else {    } else {
     my $temp=1;      my $temp=1;
     my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});      my %lastresponse=&Apache::lonnet::str2hash($Apache::lonhomework::history{"resource.$part.$id.submission"});
       my $internal_counter=$Apache::lonxml::counter;
     foreach $name (@whichopt) {      foreach $name (@whichopt) {
         my $text=$Apache::response::foilgroup{$name.'.text'};
         if ($text!~/^\s*$/) {
     if ($target eq 'tex') {
         $break='\vskip 0 mm ';
     } elsif ($target eq 'web') {
         $break='<br />';
     }
         }
       my $lastopt=$lastresponse{$name};        my $lastopt=$lastresponse{$name};
       my $optionlist="<option></option>\n";        my $optionlist="<option></option>\n";
       my $option;        foreach my $option (@opt) {
       foreach $option (@opt) {    my $escopt=&HTML::Entities::encode($option,'\'"&<>');
  if ($option eq $lastopt) {    if ($option eq $lastopt) {
   $optionlist.="<option selected=\"on\">$option</option>\n";        $optionlist.="<option value='".$escopt."' selected=\"on\">$option</option>\n";
  } else {    } else {
   $optionlist.="<option>$option</option>\n";        $optionlist.="<option value='".$escopt."'>$option</option>\n";
  }    }
         }
         if ($target ne 'tex') {
     if ($Apache::lonhomework::type ne 'exam') {
         $optionlist='<select name="HWVAL_'.
     $Apache::inputtags::response['-1'].':'.$temp.'">'.
     $optionlist."</select>\n";
     } else {
         $optionlist='<u>'.('&nbsp;'x10).'</u>';
     }
     if ($text=~s|<drawoptionlist\s*/>|$optionlist|) {
         if ($Apache::lonhomework::type ne 'exam') {
     $text='&#149;'.$text;
         }
     } else {
         if ($Apache::lonhomework::type ne 'exam') {
     $text=$optionlist.$text;
         }
     }
     $result.=$break.$text."\n";
     if ($Apache::lonhomework::type eq 'exam') {
         $result.=&webbubbles(\@opt,\@alphabet,$temp,$lastopt);
     }
     $temp++;
         } else {
     my $texoptionlist='';
     if ($displayoptionintex &&
         $Apache::lonhomework::type ne 'exam') {
         $texoptionlist = &optionlist_correction($TeXlayout,@opt);
     }
     if ($text=~/<drawoptionlist\s*\/>/) {
         $text=~s|<drawoptionlist\s*/>| \\makebox\[0\.3in\]\[b\]\{\\hrulefill\} |;
     }
   
     if ($text=~m/\\item /) {
         if ($Apache::lonhomework::type eq 'exam') {
             $text=~s/\\item/\\vskip 2 mm/;
         }
         $result.= $texoptionlist.$text;
     } else {
         if ($Apache::lonhomework::type eq 'exam') {
     $result.= $texoptionlist.'  '.$text;
         } else {
     if ($text=~/\S/) {$result.= $texoptionlist.'\vspace*{-2 mm}\item '.$text;} else {$result.= $texoptionlist;}
         }
     }
     if ($Apache::lonhomework::type eq 'exam') {
         $result.='\vskip -1 mm\noindent\begin{enumerate}\item[\textbf{'.
     $internal_counter.'}.]'.&bubbles(\@alphabet,\@opt).
     '\end{enumerate} \vskip -8 mm \strut ';
         $internal_counter++;
     }
     $displayoptionintex=0;
       }        }
       $result.="<br /><select name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\">"  
  .$optionlist  
   ."</select>\n".$Apache::response::foilgroup{$name.'.text'}."\n";  
       $temp++;  
     }      }
   }    }
   return $result."<br />";    if ($target ne 'tex') {
         return $result.$break;
     } else {
         return $result;
     }
   }
   
   
   sub optionlist_correction {
       my ($TeXlayout,@options) = @_;
       my $texoptionlist='\\item [] Choices: ';
       if ($TeXlayout eq 'vertical') {$texoptionlist='\\item []';}
       if (scalar(@options) > 0) {
    foreach my $option (@options) {
       $texoptionlist.='{\bf '.
    &Apache::lonxml::latex_special_symbols($option).
    '}';
       if ($TeXlayout eq 'vertical') {
    $texoptionlist.=' \vskip 0 mm ',
       } else {
    $texoptionlist.=', ';
       }
    }
    $texoptionlist=~s/, $//;
    if ($TeXlayout ne 'vertical') {$texoptionlist.='.';}
       } else {
    if ($TeXlayout ne 'vertical') {$texoptionlist='\\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].'" '.$checked.' />';
    if ($alphabet[$ind]) {
       $result.=$alphabet[$ind].': ';
    }
    $result.=$opt[$ind].'</td>';
       }
       $result.='</tr></table>';
       return $result;
   }
   
   
   sub bubbles {
       my ($ralphabet,$ropt,$response) = @_;
       my @alphabet = @$ralphabet;
       my @opt = @$ropt;
       my ($result,$head,$line) =('','','');
       my $number_of_bubbles = $#opt + 1;
       my $current_length = 0;
       my $textwidth;
       if ($env{'form.textwidth'} ne '') {
    $env{'form.textwidth'}=~/(\d+)/;
    $textwidth=$1;
       } else {
    $env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
    $textwidth=$1.'.'.$2;
       }
       for (my $ind=0;$ind<=$number_of_bubbles;$ind++) {
    my $leftmargin;
    $opt[$ind]=&Apache::lonxml::latex_special_symbols($opt[$ind]);
    if ($response eq 'rankresponse') {$opt[$ind]='Rank '.$opt[$ind];}
    if ($ind==0) {$leftmargin=6;} else {$leftmargin=10;}
    $current_length += (length($opt[$ind])+length($alphabet[$ind])+4)*2;
    if ($current_length<($textwidth-$leftmargin) 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 {
       $line=~s/\&\s*$//;
       $result.='\vskip -2 mm\noindent\begin{tabular}{'.$head.'}'.$line.'\\\\\end{tabular}\vskip 0 mm';
       $line = '\hskip -1 mm {\small \textbf{'.$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,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   $Apache::optionresponse::conceptgroup=1;    $Apache::optionresponse::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,"Concept Grouped Foils");      $result.=&Apache::edit::tag_start($target,$token,"Concept Grouped Foils");
     $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50')."</td></tr>";      $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
     $result.="<tr><td colspan=\"3\">\n";          &Apache::edit::end_row().&Apache::edit::start_spanning_row();
   }    }
   if ($target eq 'modified') {    if ($target eq 'modified') {
     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');      my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'concept');
Line 295  sub end_conceptgroup { Line 564  sub end_conceptgroup {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   $Apache::optionresponse::conceptgroup=0;    $Apache::optionresponse::conceptgroup=0;
   my $result='';    my $result='';
   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {    if ($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      #if not there aren't any foils to display and thus no question
     if (defined(@{ $Apache::response::conceptgroup{'names'} })) {        &Apache::response::pick_foil_for_concept($target,
       my @names = @{ $Apache::response::conceptgroup{'names'} };         ['value','text','location'],
       my $pick=int rand $#names+1;         \%Apache::hint::option,
       my $name=$names[$pick];         $parstack,$safeeval);
       push @{ $Apache::response::foilgroup{'names'} }, $name;    } elsif ($target eq 'edit') {
       $Apache::response::foilgroup{"$name.value"} =  $Apache::response::conceptgroup{"$name.value"};  
       $Apache::response::foilgroup{"$name.text"} =  $Apache::response::conceptgroup{"$name.text"};  
       my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);  
       $Apache::response::foilgroup{"$name.concept"} = $concept;  
       &Apache::lonxml::debug("Selecting $name in $concept");  
     }  
   }  
   if ($target eq 'edit') {  
     $result=&Apache::edit::end_table();      $result=&Apache::edit::end_table();
   }    }
   return $result;    return $result;
Line 323  sub insert_conceptgroup { Line 585  sub insert_conceptgroup {
 sub start_foil {  sub start_foil {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result='';    my $result='';
   if ($target eq 'web') {    if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) {
     &Apache::lonxml::startredirection;        &Apache::lonxml::startredirection;
         if ($target eq 'analyze') {
     &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
         }
   } elsif ($target eq 'edit') {    } elsif ($target eq 'edit') {
     $result=&Apache::edit::tag_start($target,$token,"Foil");      $result=&Apache::edit::tag_start($target,$token,"Foil");
     my $level='-2';      my $level='-2';
Line 332  sub start_foil { Line 597  sub start_foil {
     my @opt;      my @opt;
     eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval,$level);      eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval,$level);
     $result.=&Apache::edit::text_arg('Name:','name',$token);      $result.=&Apache::edit::text_arg('Name:','name',$token);
     $result.= &Apache::edit::select_or_text_arg('Correct Option:','value',['unused',(@opt)],$token,'15');      $result.= &Apache::edit::select_or_text_arg('Correct Option:','value',
     $result .= '</td></tr><tr><td colspan="3">';         ['unused',(@opt)],$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') {    } elsif ($target eq 'modified') {
     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'value','name');      my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
    'value','name','location');
     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }      if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
   }    } 
   return $result;    return $result;
 }  }
   
Line 345  sub end_foil { Line 618  sub end_foil {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $text ='';    my $text ='';
   my $result = '';    my $result = '';
   if ($target eq 'web') { $text=&Apache::lonxml::endredirection; }    if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {        $text=&Apache::lonxml::endredirection;
         if ($target eq 'tex') {$text=~s/\\strut\s*\\\\\s*\\strut/\\vskip 0 mm/;}
         if (($target eq 'tex') and ($Apache::lonhomework::type ne 'exam') and ($text=~/\S/)) {$text = '\vspace*{-2 mm}\item '.$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);      my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
       if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
    $text='\vskip 5mm $\triangleright$ '.$text;
       }
     if ($value ne 'unused') {      if ($value ne 'unused') {
       my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);        my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
       &Apache::lonxml::debug("Got a name of :$name:");        &Apache::lonxml::debug("Got a name of :$name:");
       if (!$name) { $name=$Apache::lonxml::curdepth; }        if (!$name) {
     &Apache::lonxml::error("Foils without names exist. This can cause problems to malfunction.");
     $name=$Apache::lonxml::curdepth;
         }
       &Apache::lonxml::debug("Using a name of :$name:");        &Apache::lonxml::debug("Using a name of :$name:");
       if ( $Apache::optionresponse::conceptgroup ) {        if (defined($Apache::response::foilnames{$name})) {
     &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
         }
         $Apache::response::foilnames{$name}++;
         my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
         if ( $Apache::optionresponse::conceptgroup
      && !&Apache::response::showallfoils() ) {
  push @{ $Apache::response::conceptgroup{'names'} }, $name;   push @{ $Apache::response::conceptgroup{'names'} }, $name;
  $Apache::response::conceptgroup{"$name.value"} = $value;   $Apache::response::conceptgroup{"$name.value"} = $value;
  $Apache::response::conceptgroup{"$name.text"} = $text;   $Apache::response::conceptgroup{"$name.text"} = $text;
    $Apache::response::conceptgroup{"$name.location"} = $location;
       } else {        } else {
  push @{ $Apache::response::foilgroup{'names'} }, $name;   push @{ $Apache::response::foilgroup{'names'} }, $name;
  $Apache::response::foilgroup{"$name.value"} = $value;   $Apache::response::foilgroup{"$name.value"} = $value;
  $Apache::response::foilgroup{"$name.text"} = $text;   $Apache::response::foilgroup{"$name.text"} = $text;
    $Apache::response::foilgroup{"$name.location"} = $location;
       }        }
     }      }
   }    }
Line 370  sub end_foil { Line 662  sub end_foil {
   return $result;    return $result;
 }  }
   
   sub start_drawoptionlist {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       if ($target ne 'meta') {
    return $token->[4];
       }
   }
   
   sub end_drawoptionlist {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       if ($target ne 'meta') {
    return $token->[2];
       }
   }
   
 sub insert_foil {  sub insert_foil {
   return '    return '
 <foil name="" value="unused">  <foil name="" value="unused">
Removed from v.1.29  
changed lines
  Added in v.1.126

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