File:  [LON-CAPA] / loncom / homework / matchresponse.pm
Revision 1.3: download - view: text, annotated - select for diffs
Thu Feb 20 09:30:42 2003 UTC (21 years, 2 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- Fixes the rest of BUG#1263, can now lock items into positions

    1: # The LearningOnline Network with CAPA
    2: # Full matching style response
    3: #
    4: # $Id: matchresponse.pm,v 1.3 2003/02/20 09:30:42 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::matchresponse;
   31: use strict;
   32: use HTML::Entities();
   33: use Math::Random();
   34: 
   35: BEGIN {
   36:     &Apache::lonxml::register('Apache::matchresponse',('matchresponse'));
   37: }
   38: 
   39: sub start_matchresponse {
   40:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   41:     my $result;
   42:     #when in a matchresponse use these
   43:     &Apache::lonxml::register('Apache::matchresponse',
   44: 			      ('foilgroup','foil','conceptgroup','item',
   45: 			       'itemgroup'));
   46:     push (@Apache::lonxml::namespace,'matchresponse');
   47:     my $id = &Apache::response::start_response($parstack,$safeeval);
   48:     %Apache::hint::match=();
   49:     if ($target eq 'meta') {
   50: 	$result=&Apache::response::meta_package_write('matchresponse');
   51:     } elsif ($target eq 'edit' ) {
   52: 	$result.=&Apache::edit::start_table($token).
   53: 	    '<tr><td>'.&Apache::lonxml::description($token)."</td><td>Delete:".
   54: 	    &Apache::edit::deletelist($target,$token)
   55: 	    ."</td><td>&nbsp".&Apache::edit::end_row()
   56: 	    .&Apache::edit::start_spanning_row();
   57: 	
   58: 	$result.=
   59: 	    &Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
   60: 	    &Apache::edit::select_arg('Randomize Foil Order','randomize',
   61: 				      ['yes','no'],$token).
   62: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n";
   63:     } elsif ($target eq 'modified') {
   64: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
   65: 						     $safeeval,'max',
   66: 						     'randomize');
   67: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
   68:     }
   69:     return $result;
   70: }
   71: 
   72: sub end_matchresponse {
   73:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   74:     my $result;
   75:     if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
   76:     &Apache::response::end_response;
   77:     pop @Apache::lonxml::namespace;
   78:     &Apache::lonxml::deregister('Apache::matchresponse',
   79: 				('foilgroup','foil','conceptgroup'));
   80:     return $result;
   81: }
   82: 
   83: %Apache::response::itemgroup=();
   84: sub start_itemgroup {
   85:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   86:     my $result;
   87:     %Apache::response::itemgroup=();
   88:     if ($target eq 'edit') {
   89: 	$result=&Apache::edit::tag_start($target,$token);
   90: 	$result.=&Apache::edit::select_arg('Randomize Order:','randomize',
   91: 					   ['yes','no'],$token);
   92: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
   93:     }
   94:     return $result;
   95: }
   96: 
   97: sub end_itemgroup {
   98:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   99:     my $result;
  100: 
  101:     if (!defined(@{ $Apache::response::itemgroup{'names'} })) { return; }
  102:     my @names=@{ $Apache::response::itemgroup{'names'} };
  103:     my $randomize =&Apache::lonxml::get_param('randomize',$parstack,$safeeval);
  104:     if ($randomize ne 'no' ) {
  105: 	@names=&whichorder($#names+1,$randomize,0,
  106: 			   \%Apache::response::itemgroup)
  107:     }
  108:     my %letter_name_map;
  109:     my %name_letter_map;
  110:     my @alphabet=('A'..'Z');
  111:     my $i=0;
  112:     foreach my $name (@names) {
  113: 	$letter_name_map{$alphabet[$i]}=$name;
  114: 	$name_letter_map{$name}=$alphabet[$i];
  115: 	$i++;
  116:     }
  117:     $Apache::response::itemgroup{'letter_name_map'}=\%letter_name_map;
  118:     $Apache::response::itemgroup{'name_letter_map'}=\%name_letter_map;
  119:     if ($target eq 'web') {
  120: 	$result.='<table>';
  121: 	my $i=0;
  122: 	foreach my $name (@names) {
  123: 	    $result.='<tr><td>'.$alphabet[$i].'</td><td>'.
  124: 		$Apache::response::itemgroup{$name.'.text'}.
  125: 		    '</td></tr>';
  126: 	    $i++;
  127: 	}
  128: 	$result.='</table>';
  129:     } elsif ($target eq 'edit') { $result=&Apache::edit::end_table(); }
  130:     return $result;
  131: }
  132: 
  133: sub start_item {
  134:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  135:     my $result='';
  136:     if ($target eq 'web' ) {
  137: 	&Apache::lonxml::startredirection;
  138:     } elsif ($target eq 'edit') {
  139: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
  140: 						 $safeeval,'-2');
  141: 	$result=&Apache::edit::tag_start($target,$token,"Item");
  142: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
  143: 	if ($randomize ne 'no') {
  144: 	    $result.=&Apache::edit::select_arg('Location:','location',
  145: 					       ['random','top','bottom'],
  146: 					       $token);
  147: 	}
  148: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  149:     } elsif ($target eq 'modified') {
  150: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  151: 						     $safeeval,'name',
  152: 						     'location');
  153: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  154:     }
  155:     return $result;
  156: }
  157: 
  158: sub end_item {
  159:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  160:     my $text ='';
  161:     my $result = '';
  162:     if ($target eq 'web') {
  163: 	$text=&Apache::lonxml::endredirection;
  164:     }
  165:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
  166: 	$target eq 'edit') {
  167: 	my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
  168: 	my $location=&Apache::lonxml::get_param('location',$parstack,
  169: 						$safeeval);
  170: 	&Apache::lonxml::debug("Got a name of :$name:");
  171: 	if (!$name) { $name=$Apache::lonxml::curdepth; }
  172: 	&Apache::lonxml::debug("Using a name of :$name:");
  173: 	push @{ $Apache::response::itemgroup{'names'} }, $name;
  174: 	$Apache::response::itemgroup{"$name.text"} = $text;
  175: 	$Apache::response::itemgroup{"$name.location"} = $location;
  176:     }
  177:     if ($target eq 'edit') {
  178: 	$result.= &Apache::edit::tag_end($target,$token,'');
  179:     }
  180:     return $result;
  181: }
  182: 
  183: sub insert_item {
  184:     return '
  185: <item name="">
  186: <startouttext />
  187: <endouttext />
  188: </item>';
  189: }
  190: 
  191: %Apache::response::foilgroup=();
  192: sub start_foilgroup {
  193:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  194:     my $result;
  195:     %Apache::response::foilgroup=();
  196:     $Apache::matchresponse::conceptgroup=0;
  197:     &Apache::response::setrandomnumber();
  198:     if ($target eq 'edit') {
  199: 	$result.=&Apache::edit::start_table($token)
  200: 	    ."<tr><td>Collection Of Foils</td><td>Delete:"
  201: 	    .&Apache::edit::deletelist($target,$token)
  202: 	    ."</td><td>&nbsp;".&Apache::edit::end_row()
  203:             .&Apache::edit::start_spanning_row()."\n";
  204:     }
  205:     return $result;
  206: }
  207: 
  208: sub end_foilgroup {
  209:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  210:     my $result;
  211:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer') {
  212: 	my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
  213: 	my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
  214: 						   $safeeval,'-2');
  215: 	if ($target eq 'web') {
  216: 	    $result=&displayfoils($target,$max,$randomize);
  217: 	} elsif ($target eq 'answer' ) {
  218: 	    $result=&displayanswers($max,$randomize);
  219: 	} elsif ( $target eq 'grade') {
  220: 	    &grade_response($max,$randomize);
  221: 	}
  222:     } elsif ($target eq 'edit') {
  223: 	$result=&Apache::edit::end_table();
  224:     }
  225:     return $result;
  226: }
  227: 
  228: sub displayanswers {
  229:     my ($max,$randomize,@opt)=@_;
  230:     if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
  231:     my @names = @{ $Apache::response::foilgroup{'names'} };
  232:     my @whichfoils = &whichorder(&getfoilcounts($max),$randomize,
  233: 				 &Apache::response::showallfoils(),
  234: 				 \%Apache::response::foilgroup);
  235:     my $result=&Apache::response::answer_header('matchresponse');
  236:     my %name_letter_map;
  237:     if (defined(%{ $Apache::response::itemgroup{'name_letter_map'} })) {
  238: 	%name_letter_map=
  239: 	    %{ $Apache::response::itemgroup{'name_letter_map'} };
  240:     }
  241:     foreach my $name (@whichfoils) {
  242: 	my $value_name=$Apache::response::foilgroup{$name.'.value'};
  243: 	my $letter=$name_letter_map{$value_name};
  244: 	$result.=&Apache::response::answer_part('matchresponse',$letter);
  245:     }
  246:     $result.=&Apache::response::answer_footer('matchresponse');
  247:     return $result;
  248: }
  249: 
  250: 
  251: sub grade_response {
  252:     my ($max,$randomize)=@_;
  253:     my (@whichfoils)=&whichorder(&getfoilcounts($max),$randomize,
  254: 				 &Apache::response::showallfoils(),
  255: 				 \%Apache::response::foilgroup);
  256:     if (!defined($ENV{'form.submitted'})) { return; }
  257:     my %responsehash;
  258:     my %grade;
  259:     my ($temp,$right,$wrong,$ignored)=(0,0,0,0);
  260:     my %letter_name_map;
  261:     if (defined(%{ $Apache::response::itemgroup{'letter_name_map'} })) {
  262: 	%letter_name_map=
  263: 	    %{ $Apache::response::itemgroup{'letter_name_map'} };
  264:     }
  265:     foreach my $name (@whichfoils) {
  266: 	my $response = $ENV{'form.HWVAL_'.$Apache::inputtags::response['-1'].":$temp"};
  267: 	my $responsename = $letter_name_map{$response};
  268: 	$responsehash{$name}=$responsename;
  269: 	my $value=$Apache::response::foilgroup{$name.'.value'};
  270: 	if ( $response =~ /[^\s]/) {
  271: 	    &Apache::lonxml::debug("submitted a $response for $value<br />\n");
  272: 	    if ($value eq $responsename) {
  273: 		$grade{$name}='1'; $right++;
  274: 	    } else {
  275: 		$grade{$name}='0'; $wrong++;
  276: 	    }
  277: 	} else {
  278: 	    $ignored++;
  279: 	}
  280: 	$temp++;
  281:     }
  282:     my $part=$Apache::inputtags::part;
  283:     my $id = $Apache::inputtags::response['-1'];
  284:     my $responsestr=&Apache::lonnet::hash2str(%responsehash);
  285:     my $gradestr   =&Apache::lonnet::hash2str(%grade);
  286:     my %previous =&Apache::response::check_for_previous($responsestr,
  287: 							$part,$id);
  288:     &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored ");
  289:     my $ad;
  290:     if ($wrong==0 && $ignored==0) {
  291: 	$ad='EXACT_ANS';
  292:     } elsif ($wrong==0 && $right==0) {
  293: 	#nothing submitted
  294:     } else {
  295: 	if ($ignored==0) {
  296: 	    $ad='INCORRECT';
  297: 	} else {
  298: 	    $ad='MISSING_ANSWER';
  299: 	}
  300:     }
  301:     $Apache::lonhomework::results{"resource.$part.$id.submission"}=
  302: 	$responsestr;
  303:     $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=
  304: 	$gradestr;
  305:     $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
  306:     &Apache::response::handle_previous(\%previous,$ad);
  307: }
  308: 
  309: sub displayfoils {
  310:     my ($target,$max,$randomize)=@_;
  311:     my $result;
  312:     my (@whichfoils)=&whichorder(&getfoilcounts($max),$randomize,
  313: 				 &Apache::response::showallfoils(),
  314: 				 \%Apache::response::foilgroup);
  315:     my $part=$Apache::inputtags::part;
  316:     my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
  317:     my $status=$Apache::inputtags::status[-1];
  318:     my %letter_name_map;
  319:     if (defined(%{ $Apache::response::itemgroup{'letter_name_map'} })) {
  320: 	%letter_name_map=
  321: 	    %{ $Apache::response::itemgroup{'letter_name_map'} };
  322:     }
  323:     my %name_letter_map;
  324:     if (defined(%{ $Apache::response::itemgroup{'name_letter_map'} })) {
  325: 	%name_letter_map=
  326: 	    %{ $Apache::response::itemgroup{'name_letter_map'} };
  327:     }
  328:     if (($solved =~ /^correct/) || ($status eq  'SHOW_ANSWER')) {
  329: 	foreach my $name (@whichfoils) {
  330: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
  331: 	    my $value=$Apache::response::foilgroup{$name.'.value'};
  332: 	    my $letter=$name_letter_map{$value};
  333: 	    $result.='<br />'.$letter.':'.$text;
  334: 	}
  335:     } else {
  336: 	my $i = 0;
  337: 	my $temp=0;
  338: 	my $id=$Apache::inputtags::response[-1];
  339: 	my $part=$Apache::inputtags::part;
  340: 	my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
  341: 	my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
  342: 	foreach my $name (@whichfoils) {
  343: 	    my $lastopt=$lastresponse{$name};
  344: 	    my $last_letter=$name_letter_map{$lastopt};
  345: 	    my $optionlist="<option></option>\n";
  346: 	    my $option;
  347: 	    foreach $option (sort(keys(%letter_name_map))) {
  348: 		if ($option eq $last_letter) {
  349: 		    $optionlist.="<option selected=\"on\">$option</option>\n";
  350: 		} else {
  351: 		    $optionlist.="<option>$option</option>\n";
  352: 		}
  353: 	    }
  354: 	    $optionlist='<select name="HWVAL_'.
  355: 		$Apache::inputtags::response[-1].':'.$temp.'">'.
  356: 		    $optionlist."</select>\n";
  357: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
  358: 	    $result.='<br />'.$optionlist.$text."\n";
  359: 	    $temp++;
  360: 	}
  361:     }
  362:     $result.="<br />";
  363:     return $result;
  364: }
  365: 
  366: sub getfoilcounts {
  367:     my ($max)=@_;
  368:     # +1 since instructors will count from 1
  369:     my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
  370:     if (&Apache::response::showallfoils()) { $max=$count; }
  371:     if ($count>$max) { $count=$max } 
  372:     &Apache::lonxml::debug("Count is $count from $max");
  373:     return $count;
  374: }
  375: 
  376: sub whichorder {
  377:     my ($max,$randomize,$showall,$hash)=@_;
  378:     #&Apache::lonxml::debug("man $max randomize $randomize");
  379:     if (!defined(@{ $$hash{'names'} })) { return; }
  380:     my @names = @{ $$hash{'names'} };
  381:     my @whichopt =();
  382:     my (%top,@toplist,%bottom,@bottomlist);
  383:     if (!($showall || ($randomize eq 'no'))) {
  384: 	my $current=0;
  385: 	foreach my $name (@names) {
  386: 	    $current++;
  387: 	    if ($$hash{"$name.location"} eq 'top') {
  388: 		$top{$name}=$current;
  389: 	    } elsif ($$hash{"$name.location"} eq 'bottom') {
  390: 		$bottom{$name}=$current;
  391: 	    }
  392: 	}
  393:     }
  394:     while ((($#whichopt+1) < $max) && ($#names > -1)) {
  395: 	#&Apache::lonxml::debug("Have $#whichopt max is $max");
  396: 	my $aopt;
  397: 	if ($showall || ($randomize eq 'no')) {
  398: 	    $aopt=0;
  399: 	} else {
  400: 	    $aopt=int(&Math::Random::random_uniform() * ($#names+1));
  401: 	}
  402: 	#&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
  403: 	$aopt=splice(@names,$aopt,1);
  404: 	#&Apache::lonxml::debug("Picked $aopt");
  405: 	if ($top{$aopt}) {
  406: 	    $toplist[$top{$aopt}]=$aopt;
  407: 	} elsif ($bottom{$aopt}) {
  408: 	    $bottomlist[$bottom{$aopt}]=$aopt;
  409: 	} else {
  410: 	    push (@whichopt,$aopt);
  411: 	}
  412:     }
  413:     for (my $i=0;$i<=$#toplist;$i++) {
  414: 	if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
  415:     }
  416:     for (my $i=0;$i<=$#bottomlist;$i++) {
  417: 	if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
  418:     }
  419: 
  420:     return @whichopt;
  421: }
  422: 
  423: sub start_conceptgroup {
  424:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  425:     $Apache::matchresponse::conceptgroup=1;
  426:     %Apache::response::conceptgroup=();
  427:     my $result;
  428:     if ($target eq 'edit') {
  429: 	$result.=&Apache::edit::tag_start($target,$token,
  430: 					  "Concept Grouped Foils");
  431: 	$result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
  432: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row();
  433:     }
  434:     if ($target eq 'modified') {
  435: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  436: 						     $safeeval,'concept');
  437: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  438:     }
  439:     return $result;
  440: }
  441: 
  442: sub end_conceptgroup {
  443:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  444:     $Apache::matchresponse::conceptgroup=0;
  445:     my $result='';
  446:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ) {
  447: 	#if not there aren't any foils to display and thus no question
  448: 	if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
  449: 	    my @names = @{ $Apache::response::conceptgroup{'names'} };
  450: 	    my $pick=int(&Math::Random::random_uniform() * ($#names+1));
  451: 	    my $name=$names[$pick];
  452: 	    push @{ $Apache::response::foilgroup{'names'} }, $name;
  453: 	    $Apache::response::foilgroup{"$name.value"} =
  454: 		$Apache::response::conceptgroup{"$name.value"};
  455: 	    $Apache::response::foilgroup{"$name.text"} =
  456: 		$Apache::response::conceptgroup{"$name.text"};
  457: 	    $Apache::response::foilgroup{"$name.location"} =
  458: 		$Apache::response::conceptgroup{"$name.location"};
  459: 	    my $concept = &Apache::lonxml::get_param('concept',$parstack,
  460: 						     $safeeval);
  461: 	    $Apache::response::foilgroup{"$name.concept"} = $concept;
  462: 	    &Apache::lonxml::debug("Selecting $name in $concept");
  463: 	    if ($target eq 'web') {
  464: 		my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
  465: 		push(@{ $Apache::hint::match{"$part_id.concepts"} },
  466: 		     $concept);
  467: 		$Apache::hint::match{"$part_id.concept.$concept"}=
  468: 		    $Apache::response::conceptgroup{'names'};
  469: 	    }
  470: 	}
  471:     } elsif ($target eq 'edit') {
  472: 	$result=&Apache::edit::end_table();
  473:     }
  474:     return $result;
  475: }
  476: 
  477: sub insert_conceptgroup {
  478:     my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
  479:     return $result;
  480: }
  481: 
  482: sub start_foil {
  483:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  484:     my $result='';
  485:     if ($target eq 'web' ) {
  486: 	&Apache::lonxml::startredirection;
  487:     } elsif ($target eq 'edit') {
  488: 	$result=&Apache::edit::tag_start($target,$token,"Foil");
  489: 	my $level='-2';
  490: 	if ($$tagstack[-2] eq 'conceptgroup') { $level = '-3'; }
  491: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
  492: 	my @names;
  493: 	if (defined(@{ $Apache::response::itemgroup{'names'} })) {
  494: 	    @names=@{ $Apache::response::itemgroup{'names'} };
  495: 	}
  496: 	$result.= &Apache::edit::select_or_text_arg('Correct Option:','value',['unused',@names],$token,'15');
  497: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
  498: 						 $safeeval,'-3');
  499: 	if ($randomize ne 'no') {
  500: 	    $result.=&Apache::edit::select_arg('Location:','location',
  501: 					     ['random','top','bottom'],$token);
  502: 	}
  503: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  504:     } elsif ($target eq 'modified') {
  505: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  506: 						     $safeeval,'value',
  507: 						     'name','location');
  508: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  509:     }
  510:     return $result;
  511: }
  512: 
  513: sub end_foil {
  514:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  515:     my $text ='';
  516:     my $result = '';
  517:     if ($target eq 'web') {
  518: 	$text=&Apache::lonxml::endredirection;
  519:     }
  520:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
  521: 	my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
  522: 	if ($value ne 'unused') {
  523: 	    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
  524: 	    my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
  525: 	    &Apache::lonxml::debug("Got a name of :$name:");
  526: 	    if (!$name) { $name=$Apache::lonxml::curdepth; }
  527: 	    &Apache::lonxml::debug("Using a name of :$name:");
  528: 	    if ( $Apache::matchresponse::conceptgroup
  529: 		 && !&Apache::response::showallfoils() ) {
  530: 		push @{ $Apache::response::conceptgroup{'names'} }, $name;
  531: 		$Apache::response::conceptgroup{"$name.value"} = $value;
  532: 		$Apache::response::conceptgroup{"$name.text"} = $text;
  533: 		$Apache::response::conceptgroup{"$name.location"} = $location;
  534: 	    } else {
  535: 		push @{ $Apache::response::foilgroup{'names'} }, $name;
  536: 		$Apache::response::foilgroup{"$name.value"} = $value;
  537: 		$Apache::response::foilgroup{"$name.text"} = $text;
  538: 		$Apache::response::foilgroup{"$name.location"} = $location;
  539: 	    }
  540: 	}
  541:     }
  542:     if ($target eq 'edit') {
  543: 	$result.= &Apache::edit::tag_end($target,$token,'');
  544:     }
  545:     return $result;
  546: }
  547: 
  548: sub insert_foil {
  549:     return '
  550: <foil name="" value="unused">
  551: <startouttext />
  552: <endouttext />
  553: </foil>';
  554: }
  555: 1;
  556: __END__

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