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- should only create the table in exam mode
- fixes problem with random numbers changing in grade target

    1: # The LearningOnline Network with CAPA
    2: # mutliple choice style responses
    3: #
    4: # $Id: radiobuttonresponse.pm,v 1.55 2002/10/14 20:33:57 albertel Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: # 2/21 Guy
   29: 
   30: package Apache::radiobuttonresponse;
   31: use strict;
   32: use HTML::Entities();
   33: 
   34: BEGIN {
   35:   &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
   36: }
   37: 
   38: sub start_radiobuttonresponse {
   39:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   40:   my $result;
   41:   #when in a radiobutton response use these
   42:   &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
   43:   push (@Apache::lonxml::namespace,'radiobuttonresponse');
   44:   my $id = &Apache::response::start_response($parstack,$safeeval);
   45:   if ($target eq 'meta') {
   46:     $result=&Apache::response::meta_package_write('radiobuttonresponse');
   47:   } elsif ($target eq 'edit' ) {
   48:     $result.=&Apache::edit::start_table($token).
   49: 	'<tr><td>'.&Apache::lonxml::description($token)."</td><td>Delete:".
   50: 	&Apache::edit::deletelist($target,$token)
   51: 	."</td><td>&nbsp".&Apache::edit::end_row()
   52:         .&Apache::edit::start_spanning_row();
   53: 
   54:     $result.=
   55: 	&Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
   56: 	&Apache::edit::select_arg('Randomize Foil Order','randomize',
   57: 				  ['yes','no'],$token).
   58:         &Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n";
   59:   } elsif ($target eq 'modified') {
   60:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,
   61: 						 $safeeval,'max','randomize');
   62:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
   63:   } elsif ($target eq 'tex') {
   64:       $result .= '\begin{enumerate}';
   65:   }
   66:   return $result;
   67: }
   68: 
   69: sub end_radiobuttonresponse {
   70:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   71:   my $result;
   72:   if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
   73:   if ($target eq 'tex') { $result .= '\end{enumerate}'; }
   74:   &Apache::response::end_response;
   75:   pop @Apache::lonxml::namespace;
   76:   &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
   77:   return $result;
   78: }
   79: 
   80: %Apache::response::foilgroup=();
   81: sub start_foilgroup {
   82:   %Apache::response::foilgroup=();
   83:   $Apache::radiobuttonresponse::conceptgroup=0;
   84:   &Apache::response::setrandomnumber();
   85:   return '';
   86: }
   87: 
   88: sub storesurvey {
   89:   if ( !defined($ENV{'form.submitted'})) { return ''; }
   90:   my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
   91:   &Apache::lonxml::debug("Here I am!:$response:");
   92:   if ( $response !~ /[0-9]+/) { return ''; }
   93:   my $id = $Apache::inputtags::response['-1'];
   94:   my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
   95:   my %responsehash;
   96:   $responsehash{$whichfoils[$response]}=$response;
   97:   $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=&Apache::lonnet::hash2str(%responsehash);
   98:   $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='SUBMITTED';
   99:   &Apache::lonxml::debug("submitted a $response<br />\n");
  100:   return '';
  101: }
  102: 
  103: sub grade_response {
  104:   my ($max,$randomize)=@_;
  105:   #keep the random numbers the same must always call this
  106:   my ($answer,@whichfoils)=&whichfoils($max,$randomize);
  107:   if (!defined($ENV{'form.submitted'})) { return; }
  108:   my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
  109:   if ( $response !~ /[0-9]+/) { return; }
  110:   my $part=$Apache::inputtags::part;
  111:   my $id = $Apache::inputtags::response['-1'];
  112:   my %responsehash;
  113:   $responsehash{$whichfoils[$response]}=$response;
  114:   my $responsestr=&Apache::lonnet::hash2str(%responsehash);
  115:   my %previous=&Apache::response::check_for_previous($responsestr,
  116: 						     $part,$id);
  117:   $Apache::lonhomework::results{"resource.$part.$id.submission"}=
  118:     $responsestr;
  119:   &Apache::lonxml::debug("submitted a $response<br />\n");
  120:   my $ad;
  121:   if ($response == $answer) {
  122:     $ad='EXACT_ANS';
  123:   } else {
  124:     $ad='INCORRECT';
  125:   }
  126:   $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
  127:   &Apache::response::handle_previous(\%previous,$ad);
  128: }
  129: 
  130: sub end_foilgroup {
  131:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  132: 
  133:   my $result;
  134:   if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex') {
  135:     my $style = $Apache::lonhomework::type;
  136:     if ( $style eq 'survey' ) {
  137:       if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
  138: 	$result=&displayallfoils();
  139:       } elsif ( $target eq 'grade' ) {
  140: 	$result=&storesurvey();
  141:       }
  142:     } else {
  143:       my $name;
  144:       my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
  145:       my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
  146: 						 $safeeval,'-2');
  147:       if ($target eq 'web' || $target eq 'tex') {
  148: 	$result=&displayfoils($target,$max,$randomize);
  149:       } elsif ($target eq 'answer' ) {
  150: 	$result=&displayanswers($max,$randomize);
  151:       } elsif ( $target eq 'grade') {
  152: 	&grade_response($max,$randomize);
  153:       }
  154:     }
  155:   }
  156:   return $result;
  157: }
  158: 
  159: sub getfoilcounts {
  160:   my @names;
  161:   my $truecnt=0;
  162:   my $falsecnt=0;
  163:   my $name;
  164:   if ( $Apache::response::foilgroup{'names'} ) {
  165:     @names= @{ $Apache::response::foilgroup{'names'} };
  166:   }
  167:   foreach $name (@names) {
  168:     if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  169:       $truecnt++;
  170:     } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
  171:       $falsecnt++;
  172:     }
  173:   }
  174:   return ($truecnt,$falsecnt);
  175: }
  176: 
  177: sub displayallfoils {
  178:   my $result;
  179:   &Apache::lonxml::debug("survey style display");
  180:   my @names = @{ $Apache::response::foilgroup{'names'} };
  181:   my $temp=0;
  182:   my $id=$Apache::inputtags::response['-1'];
  183:   my $part=$Apache::inputtags::part;
  184:   my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
  185:   my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
  186:   if (($Apache::lonhomework::history{"resource.$part.solved"} =~ /^correct/)  || ($Apache::inputtags::status[-1] eq  'SHOW_ANSWER')) {
  187:     foreach my $name (@names) {
  188:       if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
  189: 	$result.="<br />".$Apache::response::foilgroup{$name.'.value'};
  190: 	if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  191: 	  $result.='<b>';
  192: 	}
  193: 	$result .= $Apache::response::foilgroup{$name.'.text'};
  194: 	if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  195: 	  $result.='</b>';
  196: 	}
  197:       }
  198:     }
  199:   } else {
  200:     foreach my $name (@names) {
  201:       if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
  202: 	$result.="<br /><input type=\"radio\" name=\"HWVAL$Apache::inputtags::response['-1']\" value=\"$temp\" ";
  203: 	if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
  204: 	$result .= '>'.$Apache::response::foilgroup{$name.'.text'}."</input>\n";
  205: 	$temp++;
  206:       }
  207:     }
  208:   }
  209:   return $result;
  210: }
  211: 
  212: sub whichfoils {
  213:   my ($max,$randomize)=@_;
  214: 
  215:   my @truelist;
  216:   my @falselist;
  217:   my @whichfalse =();
  218:   my ($truecnt,$falsecnt) = &getfoilcounts();
  219:   my $count=0;
  220:   # we will add in 1 of the true statements
  221:   if (($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; }
  222:   my $answer=int(&Math::Random::random_uniform() * ($count));
  223:   &Apache::lonxml::debug("Count is $count, $answer is $answer");
  224:   my @names;
  225:   if ( $Apache::response::foilgroup{'names'} ) {
  226:       @names= @{ $Apache::response::foilgroup{'names'} };
  227:   }
  228:   if (&Apache::response::showallfoils()) {
  229:       @whichfalse=@names;
  230:   } elsif ($randomize eq 'no') {
  231:       &Apache::lonxml::debug("No randomization");
  232:       my $havetrue=0;
  233:       foreach my $name (@names) {
  234: 	  if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  235: 	      if (!$havetrue ) {
  236: 		  push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
  237: 	      }
  238: 	  } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
  239: 	      push (@whichfalse,$name);
  240: 	  } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
  241: 	  } else {
  242: 	      &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>"));
  243: 	  }
  244:       }
  245:   } else {
  246:     my $current=0;
  247:     &Apache::lonhomework::showhash(%Apache::response::foilgroup);
  248:     my (%top,%bottom);
  249:     #first find out where everyone wants to be
  250:     foreach my $name (@names) {
  251: 	$current++;
  252: 	if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  253: 	    push (@truelist,$name);
  254: 	    if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
  255: 		$top{$name}=$current;
  256: 	    } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
  257: 		$bottom{$name}=$current;
  258: 	    }
  259: 	} elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
  260: 	    push (@falselist,$name);
  261: 	    if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
  262: 		$top{$name}=$current;
  263: 	    } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
  264: 		$bottom{$name}=$current;
  265: 	    }
  266: 	} elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
  267: 	} else {
  268: 	    &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>"));
  269: 	}
  270:     }
  271:     #pick a true statement
  272:     my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
  273:     &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
  274:     my $numinserted;
  275:     my (@toplist, @bottomlist);
  276:     my $topcount=0;
  277:     # assign everyone to either toplist/bottomlist or whichfalse
  278:     # which false is randomized, toplist bottomlist are in order
  279:     while ((($numinserted) < $max-1) && ($#falselist > -1)) {
  280: 	&Apache::lonxml::debug("Have $#whichfalse max is $max");
  281: 	my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
  282: 	&Apache::lonxml::debug("From $#falselist elms, picking $afalse");
  283: 	$afalse=splice(@falselist,$afalse,1);
  284: 	&Apache::lonxml::debug("Picked $afalse");
  285: 	&Apache::lonhomework::showhash(('names'=>\@names));
  286: 	&Apache::lonhomework::showhash(%top);
  287: 	if ($top{$afalse}) {
  288: 	    $toplist[$top{$afalse}]=$afalse;
  289: 	    $topcount++;
  290: 	} elsif ($bottom{$afalse}) {
  291: 	    $bottomlist[$bottom{$afalse}]=$afalse;
  292: 	} else {
  293: 	    push (@whichfalse,$afalse);
  294: 	}
  295:     }
  296:     my $truename=$truelist[$whichtrue];
  297:     my $dosplice=1;
  298:     #insert the true statement, keeping track of where it wants to be
  299:     if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' ) {
  300: 	$toplist[$top{$truename}]=$truename;
  301: 	$answer=-1;
  302: 	foreach my $top (reverse(@toplist)) {
  303: 	    if ($top) { $answer++;}
  304: 	    if ($top eq $truename) { last; }
  305: 	}
  306: 	$dosplice=0;
  307:     } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom') {
  308: 	$bottomlist[$bottom{$truename}]=$truename;
  309: 	$answer=-1;
  310: 	foreach my $bot (@bottomlist) {
  311: 	    if ($bot) { $answer++;}
  312: 	    if ($bot eq $truename) { last; }
  313: 	}
  314: 	$answer+=$topcount+$#whichfalse+1;
  315: 	$dosplice=0;
  316:     } else {
  317: 	if ($topcount>0) { 
  318: 	  $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
  319: 	    + $topcount;
  320: 	}
  321:     }
  322:     #add the top items to the top, bottom items to the bottom
  323:     for (my $i=0;$i<=$#toplist;$i++) {
  324: 	if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
  325:     }
  326:     for (my $i=0;$i<=$#bottomlist;$i++) {
  327: 	if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
  328:     }
  329:     #if the true statement is randomized insert it into the list
  330:     if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
  331:   }
  332:   &Apache::lonxml::debug("Answer is $answer");
  333:   return ($answer,@whichfalse);
  334: }
  335: 
  336: sub displayfoils {
  337:   my ($target,$max,$randomize)=@_;
  338:   my $result;
  339: 
  340:   my ($answer,@whichfoils)=&whichfoils($max,$randomize);
  341:   if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ || ($Apache::inputtags::status[-1] eq  'SHOW_ANSWER')) {
  342:     foreach my $name (@whichfoils) {
  343:       if ($target ne 'tex') {
  344: 	  $result.="<br />";
  345:       } else {
  346: 	  $result.='\vskip 0 mm \item ';
  347:       }
  348:       if ($Apache::response::foilgroup{$name.'.value'} eq 'true') { 
  349: 	  if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: ';}
  350:       } else {
  351: 	$result.='Incorrect:';
  352:       }
  353:       if ($target ne 'tex') {
  354: 	  $result.=$Apache::response::foilgroup{$name.'.text'}."</input>\n";
  355:       } else {
  356: 	  $result.=$Apache::response::foilgroup{$name.'.text'};
  357:       }
  358:       if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
  359: 	  if ($target ne 'tex') { $result.='</b>';}
  360:       }
  361:     }
  362:   } else {
  363:     my $temp=0;  
  364:     my $id=$Apache::inputtags::response['-1'];
  365:     my $part=$Apache::inputtags::part;
  366:     my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
  367:     my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
  368:     foreach my $name (@whichfoils) {
  369:       if ($target ne 'tex') {
  370: 	  $result.="<br /><input type=\"radio\" name=\"HWVAL$Apache::inputtags::response['-1']\" value=\"$temp\" ";
  371: 	  if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
  372: 	  $result .= '>'.$Apache::response::foilgroup{$name.'.text'}."</input>\n";
  373: 	  if ($Apache::lonhomework::type eq 'exam') {
  374: 	      $result .= '<table border="1"><tr><td>A: &nbsp;&nbsp;Correct</td><td>B: &nbsp;&nbsp;Incorrect</td></tr></table>';
  375: 	  }
  376:       } else {
  377: 	  $result .= '\item '.$Apache::response::foilgroup{$name.'.text'};
  378: 	  if ($Apache::lonhomework::type eq 'exam') {
  379: 	      $result.= '\vskip 2 mm \noindent \begin{tabular}{|lr|lr|}\hline ';
  380: 	      $result.= 'A: &  Correct & B: & Incorrect';
  381: 	      $result.='\\\\\hline\end{tabular}\vskip 0 mm ';
  382: 	  }
  383:       }
  384:       $temp++;
  385:     }
  386:   }
  387:   if ($target ne 'tex') { $result.="<br />"; } else { $result.='\vskip 0 mm '; }
  388:   return $result;
  389: }
  390: 
  391: sub displayanswers {
  392:   my ($max,$randomize)=@_;
  393:   my ($answer,@whichopt) = &whichfoils($max,$randomize);
  394:   my $result=&Apache::response::answer_header('radiobuttonresponse');
  395:   foreach my $name (@whichopt) {
  396:     $result.=&Apache::response::answer_part('radiobuttonresponse',
  397: 		     $Apache::response::foilgroup{$name.'.value'})
  398:   }
  399:   $result.=&Apache::response::answer_footer('radiobuttonresponse');
  400:   return $result;
  401: }
  402: 
  403: sub start_conceptgroup {
  404:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  405:   $Apache::radiobuttonresponse::conceptgroup=1;
  406:   %Apache::response::conceptgroup=();
  407:   my $result;
  408:   if ($target eq 'edit') {
  409:     $result.=&Apache::edit::tag_start($target,$token);
  410:     $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
  411: 	&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  412:   } elsif ($target eq 'modified') {
  413:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  414: 						 $safeeval,'concept');
  415:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  416:   }
  417:   return $result;
  418: }
  419: 
  420: sub end_conceptgroup {
  421:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  422:   $Apache::radiobuttonresponse::conceptgroup=0;
  423:   my $result;
  424:   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'  || $target eq 'tex') {
  425:     if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
  426:       my @names = @{ $Apache::response::conceptgroup{'names'} };
  427:       my $pick=int(&Math::Random::random_uniform() * ($#names+1));
  428:       my $name=$names[$pick];
  429:       push @{ $Apache::response::foilgroup{'names'} }, $name;
  430:       $Apache::response::foilgroup{"$name.text"} =  $Apache::response::conceptgroup{"$name.text"};
  431:       $Apache::response::foilgroup{"$name.value"} = $Apache::response::conceptgroup{"$name.value"};
  432:       $Apache::response::foilgroup{"$name.location"} = $Apache::response::conceptgroup{"$name.location"};
  433:       my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
  434:       $Apache::response::foilgroup{"$name.concept"} = $concept;
  435:       &Apache::lonxml::debug("Selecting $name in $concept");
  436:     }
  437:   } elsif ($target eq 'edit') {
  438:     $result=&Apache::edit::end_table();
  439:   }
  440:   return $result;
  441: }
  442: 
  443: sub insert_conceptgroup {
  444:   my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
  445:   return $result;
  446: }
  447: 
  448: sub start_foil {
  449:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  450:   my $result='';
  451:   if ($target eq 'web' || $target eq 'tex') {
  452:     &Apache::lonxml::startredirection;
  453:   } elsif ($target eq 'edit') {
  454:     $result=&Apache::edit::tag_start($target,$token);
  455:     $result.=&Apache::edit::text_arg('Name:','name',$token);
  456:     $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
  457: 				       ['unused','true','false'],$token);
  458:     my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
  459: 					     $safeeval,'-3');
  460:     if ($randomize ne 'no') {
  461:       $result.=&Apache::edit::select_arg('Location:','location',
  462: 					 ['random','top','bottom'],$token);
  463:     }
  464:     $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  465:   } elsif ($target eq 'modified') {
  466:      my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
  467: 						  'value','name','location');
  468:     if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  469:   } 
  470:   return $result;
  471: }
  472: 
  473: sub end_foil {
  474:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  475:   my $text='';
  476:   if ($target eq 'web' || $target eq 'tex') { $text=&Apache::lonxml::endredirection; }
  477:   if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'  || $target eq 'tex') {
  478:     my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
  479:     if ($value ne 'unused') {
  480:       my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
  481:       my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
  482:       if (!$name) { $name=$Apache::lonxml::curdepth; }
  483:       if ( $Apache::radiobuttonresponse::conceptgroup
  484: 	   && !&Apache::response::showallfoils() ) {
  485: 	push @{ $Apache::response::conceptgroup{'names'} }, $name;
  486: 	$Apache::response::conceptgroup{"$name.value"} = $value;
  487: 	$Apache::response::conceptgroup{"$name.text"} = $text;	
  488: 	$Apache::response::conceptgroup{"$name.location"} = $location;	
  489:       } else {
  490: 	push @{ $Apache::response::foilgroup{'names'} }, $name;
  491: 	$Apache::response::foilgroup{"$name.value"} = $value;
  492: 	$Apache::response::foilgroup{"$name.text"} = $text;
  493: 	$Apache::response::foilgroup{"$name.location"} = $location;
  494:       }
  495:     }
  496:   }
  497:   return '';
  498: }
  499: 
  500: sub insert_foil {
  501:   return '
  502: <foil name="" value="unused">
  503: <startouttext />
  504: <endouttext />
  505: </foil>';
  506: }
  507: 1;
  508: __END__
  509: