Annotation of loncom/homework/rankresponse.pm, revision 1.50

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # rank style response
                      3: #
1.50    ! albertel    4: # $Id: rankresponse.pm,v 1.49 2005/12/06 10:13:46 albertel Exp $
1.1       albertel    5: # Copyright Michigan State University Board of Trustees
                      6: #
                      7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      8: #
                      9: # LON-CAPA is free software; you can redistribute it and/or modify
                     10: # it under the terms of the GNU General Public License as published by
                     11: # the Free Software Foundation; either version 2 of the License, or
                     12: # (at your option) any later version.
                     13: #
                     14: # LON-CAPA is distributed in the hope that it will be useful,
                     15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     17: # GNU General Public License for more details.
                     18: #
                     19: # You should have received a copy of the GNU General Public License
                     20: # along with LON-CAPA; if not, write to the Free Software
                     21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     22: #
                     23: # /home/httpd/html/adm/gpl.txt
                     24: #
                     25: # http://www.lon-capa.org/
                     26: #
                     27: 
                     28: package Apache::rankresponse;
                     29: use strict;
                     30: use HTML::Entities();
1.30      albertel   31: use Apache::optionresponse();
                     32: use Apache::lonlocal;
1.1       albertel   33: 
                     34: BEGIN {
                     35:     &Apache::lonxml::register('Apache::rankresponse',('rankresponse'));
                     36: }
                     37: 
                     38: sub start_rankresponse {
                     39:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     40:     my $result;
                     41:     #when in a rank response use these
                     42:     &Apache::lonxml::register('Apache::rankresponse',
                     43: 			      ('foilgroup','foil','conceptgroup'));
                     44:     push (@Apache::lonxml::namespace,'rankresponse');
                     45:     my $id = &Apache::response::start_response($parstack,$safeeval);
                     46:     %Apache::hint::rank=();
1.30      albertel   47:     undef(%Apache::response::foilnames);
1.1       albertel   48:     if ($target eq 'meta') {
                     49: 	$result=&Apache::response::meta_package_write('rankresponse');
                     50:     } elsif ($target eq 'edit' ) {
                     51: 	$result.=&Apache::edit::start_table($token).
                     52: 	    '<tr><td>'.&Apache::lonxml::description($token)."</td><td>Delete:".
                     53: 	    &Apache::edit::deletelist($target,$token)
                     54: 	    ."</td><td>&nbsp".&Apache::edit::end_row()
                     55: 	    .&Apache::edit::start_spanning_row();
                     56: 	
                     57: 	$result.=
                     58: 	    &Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
                     59: 	    &Apache::edit::select_arg('Randomize Foil Order','randomize',
                     60: 				      ['yes','no'],$token).
                     61: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n";
                     62:     } elsif ($target eq 'modified') {
                     63: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                     64: 						     $safeeval,'max',
                     65: 						     'randomize');
                     66: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.25      albertel   67:     } elsif ($target eq 'analyze') {
                     68: 	my $part_id="$Apache::inputtags::part.$id";
                     69: 	push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
1.1       albertel   70:     }
                     71:     return $result;
                     72: }
                     73: 
                     74: sub end_rankresponse {
                     75:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     76:     my $result;
                     77:     if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
                     78:     &Apache::response::end_response;
                     79:     pop @Apache::lonxml::namespace;
                     80:     &Apache::lonxml::deregister('Apache::rankresponse',
                     81: 				('foilgroup','foil','conceptgroup'));
1.30      albertel   82:     undef(%Apache::response::foilnames);
1.1       albertel   83:     return $result;
                     84: }
                     85: 
                     86: %Apache::response::foilgroup=();
                     87: sub start_foilgroup {
                     88:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     89:     my $result;
                     90:     %Apache::response::foilgroup=();
                     91:     $Apache::rankresponse::conceptgroup=0;
1.34      albertel   92:     &Apache::response::pushrandomnumber();
1.1       albertel   93:     return $result;
                     94: }
                     95: 
                     96: sub end_foilgroup {
                     97:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     98:     my $result;
1.26      albertel   99:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
                    100: 	$target eq 'tex' || $target eq 'analyze') {
1.1       albertel  101: 	my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
                    102: 	my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
                    103: 						   $safeeval,'-2');
                    104: 	my $tol = &Apache::lonxml::get_param('tol',$parstack,$safeeval,'-2');
                    105: 	if (!defined($tol)) { $tol=0; }
1.3       sakharuk  106: 	if ($target eq 'web' || $target eq 'tex') {
1.1       albertel  107: 	    $result=&displayfoils($target,$max,$randomize,$tol);
1.50    ! albertel  108: 	    $Apache::lonxml::post_evaluate=0;
1.1       albertel  109: 	} elsif ($target eq 'answer' ) {
                    110: 	    $result=&displayanswers($max,$randomize,$tol);
                    111: 	} elsif ( $target eq 'grade') {
                    112: 	    &grade_response($max,$randomize,$tol);
1.25      albertel  113: 	} elsif ( $target eq 'analyze') {
                    114: 	    my @shown = &whichfoils($max,$randomize);
                    115: 	    &Apache::response::analyze_store_foilgroup(\@shown,
1.26      albertel  116: 						  ['text','value','location']);
1.41      albertel  117: 	    my $part_id=
                    118: 		"$Apache::inputtags::part.$Apache::inputtags::response[-1]";
                    119: 	    $Apache::lonhomework::analyze{"$part_id.tol"}=$tol;
1.1       albertel  120: 	}
1.24      sakharuk  121: 	&Apache::lonxml::increment_counter(&getfoilcounts($max));
1.14      albertel  122:     } elsif ($target eq 'edit') {
                    123: 	$result=&Apache::edit::end_table();
1.1       albertel  124:     }
1.34      albertel  125:     &Apache::response::poprandomnumber();
1.1       albertel  126:     return $result;
                    127: }
                    128: 
                    129: sub get_correct_order {
                    130:     my ($tol,@foils) =@_;
                    131:     my @correctorder;
                    132:     my @value_names;
                    133:     foreach my $name (@foils) {
                    134: 	my @pair=($Apache::response::foilgroup{$name.'.value'},$name);
                    135: 	push(@value_names,\@pair);
                    136:     }
                    137:     @value_names =
                    138: 	sort {
1.17      albertel  139: 	    if (abs($a->[0] - $b->[0]) > $tol) {return ($a->[0] <=> $b->[0]);}
1.1       albertel  140: 	    return 0;
                    141: 	} @value_names;
                    142:     my @value_names_tmp=@value_names;
                    143:     my $firstpair=shift(@value_names_tmp);
                    144:     my $order=1;
                    145:     my %order;
                    146:     my $count=1;
                    147:     my $lastvalue=$firstpair->[0];
                    148:     $order{$firstpair->[1]}=$order;
                    149:     foreach my $pair (@value_names_tmp) {
                    150: 	$count++;
                    151: 	if (abs($pair->[0]-$lastvalue) > $tol ) {
                    152: 	    $order=$count;
                    153: 	}
                    154: 	$order{$pair->[1]}=$order;
                    155: 	$lastvalue=$pair->[0];
                    156:     }
                    157:     foreach my $name (@foils) {
                    158: 	push(@correctorder,$order{$name});
                    159:     }
                    160:     &Apache::lonhomework::showhash('b' => \@value_names);
                    161:     &Apache::lonhomework::showhash('b' => \@correctorder);
                    162:     return @correctorder;
                    163: }
                    164: 
                    165: sub displayanswers {
                    166:     my ($max,$randomize,$tol,@opt)=@_;
                    167:     if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
                    168:     my @names = @{ $Apache::response::foilgroup{'names'} };
                    169:     my @whichfoils = &whichfoils($max,$randomize);
                    170:     my @correctorder=&get_correct_order($tol,@whichfoils);
1.49      albertel  171:     my $result;
                    172:     if ($Apache::lonhomework::type eq 'exam') {
                    173: 	my @alphabet = ('A'..'Z');
                    174: 	my $i=0;
                    175: 	foreach my $order (@correctorder) {
                    176: 	    $result.=&Apache::response::answer_header('rankresponse',$i++);
                    177: 	    $result.=&Apache::response::answer_part('rankresponse',
                    178: 						    $alphabet[$order-1]);
                    179: 	    $result.=&Apache::response::answer_part('rankresponse',$order);
                    180: 	    $result.=&Apache::response::answer_footer('rankresponse');
                    181: 	}
                    182:     } else {
                    183: 	$result=&Apache::response::answer_header('rankresponse');
                    184: 	foreach my $order (@correctorder) {
                    185: 	    $result.=&Apache::response::answer_part('rankresponse',$order);
                    186: 	}
                    187: 	$result.=&Apache::response::answer_footer('rankresponse');
1.1       albertel  188:     }
                    189:     return $result;
                    190: }
                    191: 
                    192: sub check_response_order {
                    193:     my (%responsehash)=@_;
1.45      albertel  194:     my @order=sort( {$a <=> $b} values(%responsehash));
1.1       albertel  195:     my $lastvalue=0;
                    196:     my $expected=1;
                    197:     my $malformed=0;
                    198:     foreach my $current (@order) {
                    199: 	&Apache::lonxml::debug("$lastvalue $expected $malformed");
                    200: 	if (!($current == $lastvalue || $current == $expected)) {
                    201: 	    $malformed=1;
                    202: 	}
                    203: 	$expected++;
                    204: 	$lastvalue=$current;
                    205:     }
                    206:     return $malformed;
                    207: }
                    208: 
                    209: sub grade_response {
                    210:     my ($max,$randomize,$tol)=@_;
                    211:     my (@whichfoils)=&whichfoils($max,$randomize);
1.44      albertel  212:     if (!&Apache::response::submitted()) { return; }
1.1       albertel  213:     my %responsehash;
                    214:     my %grade;
1.28      albertel  215:     my ($temp,$right,$wrong,$ignored)=(1,0,0,0);
1.1       albertel  216:     my @correctorder=&get_correct_order($tol,@whichfoils);
                    217:     foreach my $name (@whichfoils) {
1.38      albertel  218: 	my $response = &Apache::response::getresponse($temp,'A is 1');
1.1       albertel  219: 	my $value=shift(@correctorder);
                    220: 	if ( $response =~ /[^\s]/) {
1.27      albertel  221: 	    $responsehash{$name}=$response;
1.1       albertel  222: 	    &Apache::lonxml::debug("submitted a $response for $value<br />\n");
                    223: 	    if ($value eq $response) {
                    224: 		$grade{$name}='1'; $right++;
                    225: 	    } else {
                    226: 		$grade{$name}='0'; $wrong++;
                    227: 	    }
                    228: 	} else {
                    229: 	    $ignored++;
                    230: 	}
                    231: 	$temp++;
                    232:     }
                    233:     my $malformed=&check_response_order(%responsehash);
                    234:     my $part=$Apache::inputtags::part;
                    235:     my $id = $Apache::inputtags::response['-1'];
                    236:     my $responsestr=&Apache::lonnet::hash2str(%responsehash);
                    237:     my $gradestr   =&Apache::lonnet::hash2str(%grade);
                    238:     my %previous=&Apache::response::check_for_previous($responsestr,
                    239: 						       $part,$id);
                    240:     &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored and was $malformed malformed");
                    241:     my $ad;
                    242:     if ($malformed) {
                    243: 	$ad='MISORDERED_RANK';
                    244:     } elsif ($wrong==0 && $ignored==0) {
                    245: 	$ad='EXACT_ANS';
                    246:     } elsif ($wrong==0 && $right==0) {
                    247: 	#nothing submitted
                    248:     } else {
                    249: 	if ($ignored==0) {
                    250: 	    $ad='INCORRECT';
                    251: 	} else {
                    252: 	    $ad='MISSING_ANSWER';
                    253: 	}
                    254:     }
1.40      albertel  255:     if ($Apache::lonhomework::type eq 'survey' &&
                    256: 	($ad eq 'INCORRECT' || $ad eq 'EXACT_ANS') ) {
                    257: 	$ad='SUBMITTED';
                    258:     } else {
                    259: 	$Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
                    260:     }
1.1       albertel  261:     $Apache::lonhomework::results{"resource.$part.$id.submission"}=
                    262: 	$responsestr;
                    263:     $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
                    264:     &Apache::response::handle_previous(\%previous,$ad);
                    265: }
                    266: 
                    267: sub displayfoils {
                    268:     my ($target,$max,$randomize,$tol)=@_;
                    269:     my $result;
1.4       sakharuk  270:     my @alphabet=('A'..'Z');
1.1       albertel  271:     my (@whichfoils)=&whichfoils($max,$randomize);
                    272:     my $part=$Apache::inputtags::part;
                    273:     my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
                    274:     my @whichopt=(1..($#whichfoils+1));
                    275:     my @correctorder=&get_correct_order($tol,@whichfoils);
1.20      sakharuk  276:     if ( &Apache::response::show_answer() && ($target ne 'tex')) {
1.1       albertel  277: 	foreach my $name (@whichfoils) {
                    278: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
                    279: 	    my $value=shift(@correctorder);
1.46      albertel  280: 	    if ($target eq 'web') {
                    281: 		$result.='<br /><b>'.$value.':</b> '.$text;
                    282: 	    } else {
                    283: 		$result.=' \strut\\\\\strut '.$value.':'.$text;
                    284: 	    }
1.1       albertel  285: 	}
                    286:     } else {
                    287: 	my $i = 0;
1.29      albertel  288: 	my $temp=1;
1.1       albertel  289: 	my $id=$Apache::inputtags::response[-1];
                    290: 	my $part=$Apache::inputtags::part;
                    291: 	my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
1.5       sakharuk  292: 	my %lastresponse=&Apache::lonnet::str2hash($lastresponse); 
                    293: 	my @alp = splice @alphabet, 0, $#whichopt + 1;
1.15      sakharuk  294: 	my $internal_counter=$Apache::lonxml::counter;
1.1       albertel  295: 	foreach my $name (@whichfoils) {
                    296: 	    my $lastopt=$lastresponse{$name};
1.3       sakharuk  297: 	    my $optionlist='';
                    298: 	    if ($target ne 'tex') {$optionlist="<option></option>\n";}
1.1       albertel  299: 	    my $option;
                    300: 	    foreach $option (@whichopt) {
                    301: 		if ($option eq $lastopt) {
1.3       sakharuk  302: 		    if ($target ne 'tex') {$optionlist.="<option selected=\"on\">$option</option>\n";}
1.1       albertel  303: 		} else {
1.3       sakharuk  304: 		    if ($target ne 'tex') {$optionlist.="<option>$option</option>\n";}
1.1       albertel  305: 		}
                    306: 	    }
1.12      sakharuk  307: 	    if ($target ne 'tex' && $Apache::lonhomework::type ne 'exam') {
1.3       sakharuk  308: 		$optionlist='<select name="HWVAL_'.
                    309: 		    $Apache::inputtags::response[-1].':'.$temp.'">'.
                    310: 		        $optionlist."</select>\n";
                    311: 	    } else {
                    312: 		$optionlist=' '.$temp.' '.$optionlist.' ';
                    313: 	    }
1.1       albertel  314: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
1.3       sakharuk  315: 	    if ($target ne 'tex') {
1.12      sakharuk  316: 		if ($Apache::lonhomework::type ne 'exam') {
                    317: 		    $result.='<br />'.$optionlist.$text."\n";
                    318: 		} else {
                    319: 		    $result.='<br />'.$text."\n";
                    320: 		}
1.4       sakharuk  321: 		if ($Apache::lonhomework::type eq 'exam') {
1.22      albertel  322: 		    my @values=(1..scalar(@whichopt));
                    323: 		    $result.=&Apache::optionresponse::webbubbles(\@values,\@whichopt,$temp,$lastopt);
1.4       sakharuk  324: 		}
                    325: 	    } else {
                    326: 		if ($Apache::lonhomework::type eq 'exam') {
1.33      sakharuk  327: 		    $result.='\vskip 0 mm   '.$text.' \vskip 0 mm '."\n";
1.36      albertel  328: 		    $result.='\vskip -1 mm\noindent\begin{enumerate}\item[\textbf{'.$internal_counter.'}.]'.&Apache::optionresponse::bubbles(\@alp,\@whichopt,'rankresponse').'\end{enumerate} \vskip -8 mm \strut ';
1.15      sakharuk  329: 		    $internal_counter++;
1.4       sakharuk  330: 		} else {
1.16      sakharuk  331: 		    $result.=' \vskip 0mm \framebox[5 mm][s]{\tiny\strut} '.$text."\n";
1.4       sakharuk  332: 		}
                    333: 	    }
1.1       albertel  334: 	    $temp++;
                    335: 	}
                    336:     }
1.5       sakharuk  337:     if ($target ne 'tex') {$result.="<br />";} else {$result.=' \vskip 0 mm ';}
1.1       albertel  338:     return $result;
                    339: }
                    340: 
                    341: sub getfoilcounts {
                    342:     my ($max)=@_;
                    343:     # +1 since instructors will count from 1
                    344:     my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
                    345:     if (&Apache::response::showallfoils()) { $max=$count; }
                    346:     if ($count>$max) { $count=$max } 
                    347:     &Apache::lonxml::debug("Count is $count from $max");
                    348:     return $count;
                    349: }
                    350: 
                    351: sub whichfoils {
                    352:     my ($max,$randomize)=@_;
1.13      albertel  353:     return &Apache::response::whichorder($max,$randomize,
                    354: 					 &Apache::response::showallfoils(),
                    355: 					 \%Apache::response::foilgroup);
1.1       albertel  356: }
                    357: 
                    358: sub start_conceptgroup {
                    359:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    360:     $Apache::rankresponse::conceptgroup=1;
                    361:     %Apache::response::conceptgroup=();
                    362:     my $result;
                    363:     if ($target eq 'edit') {
                    364: 	$result.=&Apache::edit::tag_start($target,$token,
                    365: 					  "Concept Grouped Foils");
                    366: 	$result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
                    367: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    368:     }
                    369:     if ($target eq 'modified') {
                    370: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    371: 						     $safeeval,'concept');
                    372: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    373:     }
                    374:     return $result;
                    375: }
                    376: 
                    377: sub end_conceptgroup {
                    378:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    379:     $Apache::rankresponse::conceptgroup=0;
                    380:     my $result='';
1.25      albertel  381:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
                    382: 	$target eq 'tex' || $target eq 'analyze') {
1.1       albertel  383: 	#if not there aren't any foils to display and thus no question
1.25      albertel  384: 	&Apache::response::pick_foil_for_concept($target,
                    385: 						 ['value','text','location'],
                    386: 						 \%Apache::hint::rank,
                    387: 						 $parstack,$safeeval);
1.1       albertel  388:     } elsif ($target eq 'edit') {
                    389: 	$result=&Apache::edit::end_table();
                    390:     }
                    391:     return $result;
                    392: }
                    393: 
                    394: sub insert_conceptgroup {
                    395:     my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
                    396:     return $result;
                    397: }
                    398: 
                    399: sub start_foil {
                    400:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    401:     my $result='';
1.25      albertel  402:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  403: 	&Apache::lonxml::startredirection;
1.39      albertel  404: 	if ($target eq 'analyze') {
                    405: 	    &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
                    406: 	}
1.1       albertel  407:     } elsif ($target eq 'edit') {
                    408: 	$result=&Apache::edit::tag_start($target,$token,"Foil");
                    409: 	my $level='-2';
                    410: 	if ($$tagstack[-2] eq 'conceptgroup') { $level = '-3'; }
                    411: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
                    412: 	$result.= &Apache::edit::text_arg('Rank Value:','value',$token,'15');
                    413: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
                    414: 						 $safeeval,'-3');
                    415: 	if ($randomize ne 'no') {
                    416: 	    $result.=&Apache::edit::select_arg('Location:','location',
                    417: 					     ['random','top','bottom'],$token);
                    418: 	}
                    419: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    420:     } elsif ($target eq 'modified') {
                    421: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    422: 						     $safeeval,'value',
                    423: 						     'name','location');
                    424: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    425:     }
                    426:     return $result;
                    427: }
                    428: 
                    429: sub end_foil {
                    430:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    431:     my $text ='';
                    432:     my $result = '';
1.25      albertel  433:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  434: 	$text=&Apache::lonxml::endredirection;
                    435:     }
1.25      albertel  436:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
                    437: 	$target eq 'tex' || $target eq 'analyze') {
1.1       albertel  438: 	my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
1.42      albertel  439: 	if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
                    440: 	    $text='\vskip 5mm $\triangleright$ '.$text;
                    441: 	}
1.1       albertel  442: 	if ($value ne 'unused') {
                    443: 	    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    444: 	    &Apache::lonxml::debug("Got a name of :$name:");
1.48      albertel  445: 	    if ($name eq "") {
1.47      albertel  446: 		&Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
1.43      albertel  447: 		$name=$Apache::lonxml::curdepth;
                    448: 	    }
1.1       albertel  449: 	    &Apache::lonxml::debug("Using a name of :$name:");
1.30      albertel  450: 	    if (defined($Apache::response::foilnames{$name})) {
                    451: 		&Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
                    452: 	    }
1.31      albertel  453: 	    $Apache::response::foilnames{$name}++;
1.30      albertel  454: 	    my $location =&Apache::lonxml::get_param('location',$parstack,
                    455: 						     $safeeval);
1.1       albertel  456: 	    if ( $Apache::rankresponse::conceptgroup
                    457: 		 && !&Apache::response::showallfoils() ) {
                    458: 		push @{ $Apache::response::conceptgroup{'names'} }, $name;
                    459: 		$Apache::response::conceptgroup{"$name.value"} = $value;
1.42      albertel  460: 		$Apache::response::conceptgroup{"$name.text"} = $text;
1.1       albertel  461: 		$Apache::response::conceptgroup{"$name.location"} = $location;
                    462: 	    } else {
                    463: 		push @{ $Apache::response::foilgroup{'names'} }, $name;
                    464: 		$Apache::response::foilgroup{"$name.value"} = $value;
1.42      albertel  465: 		$Apache::response::foilgroup{"$name.text"} = $text;
1.1       albertel  466: 		$Apache::response::foilgroup{"$name.location"} = $location;
                    467: 	    }
                    468: 	}
                    469:     }
                    470:     if ($target eq 'edit') {
                    471: 	$result.= &Apache::edit::tag_end($target,$token,'');
                    472:     }
                    473:     return $result;
                    474: }
                    475: 
                    476: sub insert_foil {
                    477:     return '
                    478: <foil name="" value="unused">
                    479: <startouttext />
                    480: <endouttext />
                    481: </foil>';
                    482: }
                    483: 1;
                    484: __END__

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