Annotation of loncom/homework/matchresponse.pm, revision 1.28

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # Full matching style response
                      3: #
1.28    ! albertel    4: # $Id: matchresponse.pm,v 1.27 2003/10/15 19:40:42 albertel Exp $
1.1       albertel    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: 
                     29: package Apache::matchresponse;
                     30: use strict;
                     31: use HTML::Entities();
                     32: use Math::Random();
1.6       sakharuk   33: use Apache::optionresponse;
                     34: 
1.1       albertel   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); }
1.28    ! albertel   68:     } elsif ($target eq 'analyze') {
        !            69: 	my $part_id="$Apache::inputtags::part.$id";
        !            70: 	push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
1.1       albertel   71:     }
                     72:     return $result;
                     73: }
                     74: 
                     75: sub end_matchresponse {
                     76:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     77:     my $result;
                     78:     if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
                     79:     &Apache::response::end_response;
                     80:     pop @Apache::lonxml::namespace;
                     81:     &Apache::lonxml::deregister('Apache::matchresponse',
                     82: 				('foilgroup','foil','conceptgroup'));
                     83:     return $result;
                     84: }
                     85: 
                     86: %Apache::response::itemgroup=();
                     87: sub start_itemgroup {
                     88:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     89:     my $result;
                     90:     %Apache::response::itemgroup=();
1.4       albertel   91:     %Apache::matchresponse::itemtable=();
1.15      albertel   92: 
1.1       albertel   93:     if ($target eq 'edit') {
                     94: 	$result=&Apache::edit::tag_start($target,$token);
                     95: 	$result.=&Apache::edit::select_arg('Randomize Order:','randomize',
                     96: 					   ['yes','no'],$token);
1.4       albertel   97: 	$result.=&Apache::edit::select_arg('Items Display Location:',
                     98: 					   'location',
                     99: 					   ['top','bottom','left','right'],
                    100: 					   $token);
1.1       albertel  101: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.4       albertel  102:     } elsif ($target eq 'modified') {
                    103: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    104: 						     $safeeval,'randomize',
                    105: 						     'location');
                    106: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.21      sakharuk  107:     } elsif ($target eq 'web' or $target eq 'tex') {
1.4       albertel  108: 	$Apache::matchresponse::itemtable{'location'}=
                    109: 	    &Apache::lonxml::get_param('location',$parstack,$safeeval);
1.1       albertel  110:     }
                    111:     return $result;
                    112: }
                    113: 
                    114: sub end_itemgroup {
                    115:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    116:     my $result;
                    117: 
1.17      albertel  118:     if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
1.1       albertel  119:     if (!defined(@{ $Apache::response::itemgroup{'names'} })) { return; }
                    120:     my @names=@{ $Apache::response::itemgroup{'names'} };
                    121:     my $randomize =&Apache::lonxml::get_param('randomize',$parstack,$safeeval);
1.2       albertel  122:     if ($randomize ne 'no' ) {
1.18      albertel  123: 	@names=&Apache::response::whichorder($#names+1,$randomize,0,
                    124: 					 \%Apache::response::itemgroup);
1.1       albertel  125:     }
                    126:     my %letter_name_map;
                    127:     my %name_letter_map;
                    128:     my @alphabet=('A'..'Z');
                    129:     my $i=0;
                    130:     foreach my $name (@names) {
                    131: 	$letter_name_map{$alphabet[$i]}=$name;
                    132: 	$name_letter_map{$name}=$alphabet[$i];
                    133: 	$i++;
                    134:     }
1.15      albertel  135:     $Apache::response::itemgroup{'letter_name_map'}=\%letter_name_map;
1.1       albertel  136:     $Apache::response::itemgroup{'name_letter_map'}=\%name_letter_map;
                    137:     if ($target eq 'web') {
1.4       albertel  138: 	my $table='<table>';
1.1       albertel  139: 	my $i=0;
                    140: 	foreach my $name (@names) {
1.4       albertel  141: 	    $table.='<tr><td>'.$alphabet[$i].'</td><td>'.
1.1       albertel  142: 		$Apache::response::itemgroup{$name.'.text'}.
                    143: 		    '</td></tr>';
                    144: 	    $i++;
                    145: 	}
1.4       albertel  146: 	$table.='</table>';
                    147: 	$Apache::matchresponse::itemtable{'display'}=$table;
1.5       sakharuk  148:     } elsif ($target eq 'tex') {
1.22      sakharuk  149: 	my $table=' \begin{description} ';
1.5       sakharuk  150: 	my $i=0;
                    151: 	foreach my $name (@names) {
1.11      sakharuk  152: 	    $Apache::response::itemgroup{$name.'.text'}=~s/\$\$/\$/g;
1.19      sakharuk  153: 	    $table.='\item['.$alphabet[$i].'] '.
1.21      sakharuk  154: 		$Apache::response::itemgroup{$name.'.text'};
1.5       sakharuk  155: 	    $i++;
                    156: 	}
1.22      sakharuk  157: 	$table.=' \end{description} \strut ';
1.5       sakharuk  158: 	$Apache::matchresponse::itemtable{'display'}=$table;
1.17      albertel  159:     }
1.1       albertel  160:     return $result;
                    161: }
                    162: 
                    163: sub start_item {
                    164:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    165:     my $result='';
1.5       sakharuk  166:     if ($target eq 'web' || $target eq 'tex') {
1.1       albertel  167: 	&Apache::lonxml::startredirection;
                    168:     } elsif ($target eq 'edit') {
1.3       albertel  169: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
                    170: 						 $safeeval,'-2');
1.1       albertel  171: 	$result=&Apache::edit::tag_start($target,$token,"Item");
                    172: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
1.3       albertel  173: 	if ($randomize ne 'no') {
                    174: 	    $result.=&Apache::edit::select_arg('Location:','location',
                    175: 					       ['random','top','bottom'],
                    176: 					       $token);
                    177: 	}
                    178: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.1       albertel  179:     } elsif ($target eq 'modified') {
                    180: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.3       albertel  181: 						     $safeeval,'name',
                    182: 						     'location');
1.1       albertel  183: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    184:     }
                    185:     return $result;
                    186: }
                    187: 
                    188: sub end_item {
                    189:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    190:     my $text ='';
                    191:     my $result = '';
1.5       sakharuk  192:     if ($target eq 'web' || $target eq 'tex') {
1.1       albertel  193: 	$text=&Apache::lonxml::endredirection;
                    194:     }
                    195:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.5       sakharuk  196: 	$target eq 'edit' || $target eq 'tex') {
1.1       albertel  197: 	my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
1.3       albertel  198: 	my $location=&Apache::lonxml::get_param('location',$parstack,
                    199: 						$safeeval);
1.1       albertel  200: 	&Apache::lonxml::debug("Got a name of :$name:");
                    201: 	if (!$name) { $name=$Apache::lonxml::curdepth; }
                    202: 	&Apache::lonxml::debug("Using a name of :$name:");
                    203: 	push @{ $Apache::response::itemgroup{'names'} }, $name;
                    204: 	$Apache::response::itemgroup{"$name.text"} = $text;
1.3       albertel  205: 	$Apache::response::itemgroup{"$name.location"} = $location;
1.1       albertel  206:     }
                    207:     if ($target eq 'edit') {
                    208: 	$result.= &Apache::edit::tag_end($target,$token,'');
                    209:     }
                    210:     return $result;
                    211: }
                    212: 
                    213: sub insert_item {
                    214:     return '
                    215: <item name="">
                    216: <startouttext />
                    217: <endouttext />
                    218: </item>';
                    219: }
                    220: 
                    221: %Apache::response::foilgroup=();
                    222: sub start_foilgroup {
                    223:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    224:     my $result;
                    225:     %Apache::response::foilgroup=();
                    226:     $Apache::matchresponse::conceptgroup=0;
                    227:     &Apache::response::setrandomnumber();
                    228:     if ($target eq 'edit') {
                    229: 	$result.=&Apache::edit::start_table($token)
                    230: 	    ."<tr><td>Collection Of Foils</td><td>Delete:"
                    231: 	    .&Apache::edit::deletelist($target,$token)
                    232: 	    ."</td><td>&nbsp;".&Apache::edit::end_row()
                    233:             .&Apache::edit::start_spanning_row()."\n";
                    234:     }
                    235:     return $result;
                    236: }
                    237: 
                    238: sub end_foilgroup {
                    239:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    240:     my $result;
1.28    ! albertel  241:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  242: 	my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
                    243: 	my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
                    244: 						   $safeeval,'-2');
1.5       sakharuk  245: 	if ($target eq 'web' || $target eq 'tex') {
1.1       albertel  246: 	    $result=&displayfoils($target,$max,$randomize);
                    247: 	} elsif ($target eq 'answer' ) {
                    248: 	    $result=&displayanswers($max,$randomize);
                    249: 	} elsif ( $target eq 'grade') {
                    250: 	    &grade_response($max,$randomize);
1.28    ! albertel  251: 	} elsif ( $target eq 'analyze') {
        !           252: 	    my @shown=&whichfoils($max,$randomize);
        !           253: 	    &Apache::response::analyze_store_foilgroup(\@shown,
        !           254: 						       ['text','value']);
        !           255: 	    #FIXME need to store options in some way
1.1       albertel  256: 	}
1.20      sakharuk  257: 	&Apache::lonxml::increment_counter(&getfoilcounts($max));
1.1       albertel  258:     } elsif ($target eq 'edit') {
                    259: 	$result=&Apache::edit::end_table();
                    260:     }
                    261:     return $result;
                    262: }
                    263: 
                    264: sub displayanswers {
                    265:     my ($max,$randomize,@opt)=@_;
                    266:     if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
                    267:     my @names = @{ $Apache::response::foilgroup{'names'} };
1.18      albertel  268:     my @whichfoils = &Apache::response::whichorder(&getfoilcounts($max),
                    269: 						   $randomize,
                    270: 					  &Apache::response::showallfoils(),
                    271: 					 \%Apache::response::foilgroup);
1.1       albertel  272:     my $result=&Apache::response::answer_header('matchresponse');
                    273:     my %name_letter_map;
                    274:     if (defined(%{ $Apache::response::itemgroup{'name_letter_map'} })) {
                    275: 	%name_letter_map=
                    276: 	    %{ $Apache::response::itemgroup{'name_letter_map'} };
                    277:     }
                    278:     foreach my $name (@whichfoils) {
                    279: 	my $value_name=$Apache::response::foilgroup{$name.'.value'};
                    280: 	my $letter=$name_letter_map{$value_name};
                    281: 	$result.=&Apache::response::answer_part('matchresponse',$letter);
                    282:     }
                    283:     $result.=&Apache::response::answer_footer('matchresponse');
                    284:     return $result;
                    285: }
                    286: 
                    287: 
                    288: sub grade_response {
                    289:     my ($max,$randomize)=@_;
1.18      albertel  290:     my (@whichfoils)=&Apache::response::whichorder(&getfoilcounts($max),
                    291: 						   $randomize,
                    292: 				            &Apache::response::showallfoils(),
                    293: 				           \%Apache::response::foilgroup);
1.1       albertel  294:     if (!defined($ENV{'form.submitted'})) { return; }
                    295:     my %responsehash;
                    296:     my %grade;
                    297:     my ($temp,$right,$wrong,$ignored)=(0,0,0,0);
                    298:     my %letter_name_map;
                    299:     if (defined(%{ $Apache::response::itemgroup{'letter_name_map'} })) {
                    300: 	%letter_name_map=
                    301: 	    %{ $Apache::response::itemgroup{'letter_name_map'} };
                    302:     }
                    303:     foreach my $name (@whichfoils) {
1.27      albertel  304: 	my $response = &Apache::response::getresponse($temp);
1.1       albertel  305: 	my $responsename = $letter_name_map{$response};
                    306: 	$responsehash{$name}=$responsename;
                    307: 	my $value=$Apache::response::foilgroup{$name.'.value'};
                    308: 	if ( $response =~ /[^\s]/) {
                    309: 	    &Apache::lonxml::debug("submitted a $response for $value<br />\n");
                    310: 	    if ($value eq $responsename) {
                    311: 		$grade{$name}='1'; $right++;
                    312: 	    } else {
                    313: 		$grade{$name}='0'; $wrong++;
                    314: 	    }
                    315: 	} else {
                    316: 	    $ignored++;
                    317: 	}
                    318: 	$temp++;
                    319:     }
                    320:     my $part=$Apache::inputtags::part;
                    321:     my $id = $Apache::inputtags::response['-1'];
                    322:     my $responsestr=&Apache::lonnet::hash2str(%responsehash);
                    323:     my $gradestr   =&Apache::lonnet::hash2str(%grade);
                    324:     my %previous =&Apache::response::check_for_previous($responsestr,
                    325: 							$part,$id);
                    326:     &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored ");
                    327:     my $ad;
                    328:     if ($wrong==0 && $ignored==0) {
                    329: 	$ad='EXACT_ANS';
                    330:     } elsif ($wrong==0 && $right==0) {
                    331: 	#nothing submitted
                    332:     } else {
                    333: 	if ($ignored==0) {
                    334: 	    $ad='INCORRECT';
                    335: 	} else {
                    336: 	    $ad='MISSING_ANSWER';
                    337: 	}
                    338:     }
                    339:     $Apache::lonhomework::results{"resource.$part.$id.submission"}=
                    340: 	$responsestr;
                    341:     $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=
                    342: 	$gradestr;
                    343:     $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
                    344:     &Apache::response::handle_previous(\%previous,$ad);
                    345: }
                    346: 
1.4       albertel  347: sub itemdisplay {
                    348:     my ($location)=@_;
                    349:     if ($location eq 'top' &&
                    350: 	!defined($Apache::matchresponse::itemtable{'location'})) {
                    351: 	return $Apache::matchresponse::itemtable{'display'};
                    352:     }
                    353:     if ($Apache::matchresponse::itemtable{'location'} eq $location) {
                    354: 	return $Apache::matchresponse::itemtable{'display'};
                    355:     }
                    356:     return undef;
                    357: }
1.1       albertel  358: sub displayfoils {
                    359:     my ($target,$max,$randomize)=@_;
                    360:     my $result;
1.4       albertel  361:     my $question;
1.18      albertel  362:     my (@whichfoils)=&Apache::response::whichorder(&getfoilcounts($max),
                    363: 						   $randomize,
                    364: 				            &Apache::response::showallfoils(),
                    365: 				           \%Apache::response::foilgroup);
1.1       albertel  366:     my $part=$Apache::inputtags::part;
                    367:     my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
                    368:     my %letter_name_map;
                    369:     if (defined(%{ $Apache::response::itemgroup{'letter_name_map'} })) {
                    370: 	%letter_name_map=
                    371: 	    %{ $Apache::response::itemgroup{'letter_name_map'} };
                    372:     }
                    373:     my %name_letter_map;
                    374:     if (defined(%{ $Apache::response::itemgroup{'name_letter_map'} })) {
                    375: 	%name_letter_map=
                    376: 	    %{ $Apache::response::itemgroup{'name_letter_map'} };
                    377:     }
1.25      albertel  378:     if ( &Apache::response::show_answer() && ($target ne 'tex')) {
1.1       albertel  379: 	foreach my $name (@whichfoils) {
                    380: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
                    381: 	    my $value=$Apache::response::foilgroup{$name.'.value'};
                    382: 	    my $letter=$name_letter_map{$value};
1.5       sakharuk  383: 	    if ($target eq 'tex') {
                    384: 		$question.=' \\\\ '.$letter.':'.$text;
                    385: 	    } else {
                    386: 		$question.='<br />'.$letter.':'.$text;
                    387: 	    }
1.1       albertel  388: 	}
                    389:     } else {
                    390: 	my $i = 0;
                    391: 	my $temp=0;
                    392: 	my $id=$Apache::inputtags::response[-1];
                    393: 	my $part=$Apache::inputtags::part;
                    394: 	my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
1.9       sakharuk  395: 	my %lastresponse=&Apache::lonnet::str2hash($lastresponse);    
                    396: 	my @alphabet=('A'..'Z');
1.15      albertel  397: 	my @used_letters=sort(keys(%letter_name_map));
1.20      sakharuk  398: 	my $internal_counter=$Apache::lonxml::counter;
1.1       albertel  399: 	foreach my $name (@whichfoils) {
                    400: 	    my $lastopt=$lastresponse{$name};
                    401: 	    my $last_letter=$name_letter_map{$lastopt};
1.5       sakharuk  402: 	    my $optionlist = '';
1.7       sakharuk  403: 	    if ($target ne 'tex') {
                    404: 		$optionlist="<option></option>\n";
                    405: 	    } else {
                    406: 		if ($Apache::lonhomework::type ne 'exam') {
                    407: 		    $optionlist='\framebox[5 mm][s]{\tiny\strut}';
                    408: 		}
                    409: 	    }
1.1       albertel  410: 	    my $option;
1.15      albertel  411: 	    foreach $option (@used_letters) {
1.1       albertel  412: 		if ($option eq $last_letter) {
1.6       sakharuk  413: 		    if ($target ne 'tex') {$optionlist.="<option selected=\"on\">$option</option>\n";}
1.1       albertel  414: 		} else {
1.6       sakharuk  415: 		    if ($target ne 'tex') {$optionlist.="<option>$option</option>\n";}
1.1       albertel  416: 		}
                    417: 	    }
1.19      sakharuk  418: 	    if ($target ne 'tex' && $Apache::lonhomework::type ne 'exam') {
1.5       sakharuk  419: 	        $optionlist='<select name="HWVAL_'.
                    420: 		    $Apache::inputtags::response[-1].':'.$temp.'">'.
                    421: 		        $optionlist."</select>\n";
                    422: 	    }
1.1       albertel  423: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
1.5       sakharuk  424: 	    if ($target ne 'tex') {
1.19      sakharuk  425: 		if ($Apache::lonhomework::type ne 'exam') {
                    426: 		    $question.='<br />'.$optionlist.$text."\n";
                    427: 		} else {
                    428: 		    $question.='<br />'.$text."\n";
                    429: 		}
1.6       sakharuk  430: 		if ($Apache::lonhomework::type eq 'exam') {
1.27      albertel  431: 		    $question.=&Apache::optionresponse::webbubbles(\@used_letters,\@used_letters,$temp,$last_letter);
1.6       sakharuk  432: 		}
                    433: 	    } else {		
                    434: 		if ($Apache::lonhomework::type eq 'exam') {
                    435: 		    $question.=' '.$optionlist.$text."\n";
1.13      sakharuk  436: 		    my @emptyItems = ();
1.16      albertel  437: 		    for (my $i=0;$i<=$#used_letters;$i++) {push @emptyItems, ' ';}
1.20      sakharuk  438: 		    $question.='\vskip -2 mm\parbox{\textwidth}{\begin{enumerate}\item[\textbf{'.$internal_counter.'}.]\parbox{\textwidth - 5 mm}{'.&Apache::optionresponse::bubbles(\@used_letters,\@emptyItems).'}\end{enumerate}} \vskip -10 mm \strut ';
                    439: 		    $internal_counter++;
1.6       sakharuk  440: 	        } else {
1.22      sakharuk  441: 		    $question.=' '.$optionlist.$text.'\strut\\\\\strut '."\n";
1.6       sakharuk  442: 		}
1.5       sakharuk  443:             } 
1.1       albertel  444: 	    $temp++;
                    445: 	}
1.4       albertel  446:     }
                    447:     if ($result=&itemdisplay('top')) {
                    448: 	$result.=$question;
                    449:     } elsif ($result=&itemdisplay('bottom')) {
                    450: 	$result=$question.$result;
                    451:     } elsif ($result=&itemdisplay('right')) {
                    452: 	$result='<table><tr><td>'.$question.'</td><td>'.$result.
                    453: 	    '</td></tr></table>';
                    454:     } elsif ($result=&itemdisplay('left')) {
                    455: 	$result='<table><tr><td>'.$result.'</td><td>'.$question.
                    456: 	    '</td></tr></table>';
1.1       albertel  457:     }
1.5       sakharuk  458:     if ($target ne 'tex') {$result.="<br />";} else {$result.=' \\\\ ';}
1.1       albertel  459:     return $result;
                    460: }
                    461: 
                    462: sub getfoilcounts {
                    463:     my ($max)=@_;
                    464:     # +1 since instructors will count from 1
                    465:     my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
                    466:     if (&Apache::response::showallfoils()) { $max=$count; }
                    467:     if ($count>$max) { $count=$max } 
                    468:     &Apache::lonxml::debug("Count is $count from $max");
                    469:     return $count;
                    470: }
                    471: 
                    472: 
                    473: sub start_conceptgroup {
                    474:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    475:     $Apache::matchresponse::conceptgroup=1;
                    476:     %Apache::response::conceptgroup=();
                    477:     my $result;
                    478:     if ($target eq 'edit') {
                    479: 	$result.=&Apache::edit::tag_start($target,$token,
                    480: 					  "Concept Grouped Foils");
                    481: 	$result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
                    482: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    483:     }
                    484:     if ($target eq 'modified') {
                    485: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    486: 						     $safeeval,'concept');
                    487: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    488:     }
                    489:     return $result;
                    490: }
                    491: 
                    492: sub end_conceptgroup {
                    493:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    494:     $Apache::matchresponse::conceptgroup=0;
                    495:     my $result='';
1.28    ! albertel  496:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
        !           497: 	$target eq 'tex' || $target eq 'analyze') {
        !           498: 	&Apache::response::pick_foil_for_concept($target,
        !           499: 						 ['value','text','location'],
        !           500: 						 \%Apache::hint::match,
        !           501: 						 $parstack,$safeeval);
1.1       albertel  502:     } elsif ($target eq 'edit') {
                    503: 	$result=&Apache::edit::end_table();
                    504:     }
                    505:     return $result;
                    506: }
                    507: 
                    508: sub insert_conceptgroup {
                    509:     my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
                    510:     return $result;
                    511: }
                    512: 
                    513: sub start_foil {
                    514:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    515:     my $result='';
1.28    ! albertel  516:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  517: 	&Apache::lonxml::startredirection;
                    518:     } elsif ($target eq 'edit') {
                    519: 	$result=&Apache::edit::tag_start($target,$token,"Foil");
                    520: 	my $level='-2';
                    521: 	if ($$tagstack[-2] eq 'conceptgroup') { $level = '-3'; }
                    522: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
                    523: 	my @names;
                    524: 	if (defined(@{ $Apache::response::itemgroup{'names'} })) {
                    525: 	    @names=@{ $Apache::response::itemgroup{'names'} };
                    526: 	}
                    527: 	$result.= &Apache::edit::select_or_text_arg('Correct Option:','value',['unused',@names],$token,'15');
                    528: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
                    529: 						 $safeeval,'-3');
                    530: 	if ($randomize ne 'no') {
                    531: 	    $result.=&Apache::edit::select_arg('Location:','location',
                    532: 					     ['random','top','bottom'],$token);
                    533: 	}
                    534: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    535:     } elsif ($target eq 'modified') {
                    536: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    537: 						     $safeeval,'value',
                    538: 						     'name','location');
                    539: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    540:     }
                    541:     return $result;
                    542: }
                    543: 
                    544: sub end_foil {
                    545:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    546:     my $text ='';
                    547:     my $result = '';
1.28    ! albertel  548:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  549: 	$text=&Apache::lonxml::endredirection;
                    550:     }
1.28    ! albertel  551:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
        !           552: 	$target eq 'tex' || $target eq 'analyze') {
1.1       albertel  553: 	my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
                    554: 	if ($value ne 'unused') {
                    555: 	    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    556: 	    my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
                    557: 	    &Apache::lonxml::debug("Got a name of :$name:");
                    558: 	    if (!$name) { $name=$Apache::lonxml::curdepth; }
                    559: 	    &Apache::lonxml::debug("Using a name of :$name:");
                    560: 	    if ( $Apache::matchresponse::conceptgroup
                    561: 		 && !&Apache::response::showallfoils() ) {
                    562: 		push @{ $Apache::response::conceptgroup{'names'} }, $name;
                    563: 		$Apache::response::conceptgroup{"$name.value"} = $value;
1.19      sakharuk  564: 		if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
1.14      sakharuk  565: 		    $Apache::response::conceptgroup{"$name.text"} = ' $\triangleright$ '.$text;
                    566: 		} else {
                    567: 		    $Apache::response::conceptgroup{"$name.text"} = $text;
                    568: 		}
1.1       albertel  569: 		$Apache::response::conceptgroup{"$name.location"} = $location;
                    570: 	    } else {
                    571: 		push @{ $Apache::response::foilgroup{'names'} }, $name;
                    572: 		$Apache::response::foilgroup{"$name.value"} = $value;
1.16      albertel  573: 		if ($Apache::lonhomework::type eq 'exam') {
1.19      sakharuk  574: 		    if ($target eq 'tex') {
                    575: 			$Apache::response::foilgroup{"$name.text"} = '\vskip 5 mm $\triangleright$ '.$text;
                    576: 		    } else {
                    577: 			$Apache::response::foilgroup{"$name.text"} = $text;
                    578: 		    }
1.14      sakharuk  579: 		} else {
                    580: 		    if ($target eq 'tex') {
1.24      sakharuk  581: 			$Apache::response::foilgroup{"$name.text"} = $text;
1.14      sakharuk  582: 		    } else {
                    583: 			$Apache::response::foilgroup{"$name.text"} = $text;
                    584: 		    }
                    585: 		}
1.1       albertel  586: 		$Apache::response::foilgroup{"$name.location"} = $location;
                    587: 	    }
                    588: 	}
                    589:     }
                    590:     if ($target eq 'edit') {
                    591: 	$result.= &Apache::edit::tag_end($target,$token,'');
                    592:     }
                    593:     return $result;
                    594: }
                    595: 
                    596: sub insert_foil {
                    597:     return '
                    598: <foil name="" value="unused">
                    599: <startouttext />
                    600: <endouttext />
                    601: </foil>';
                    602: }
                    603: 1;
                    604: __END__

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