Annotation of loncom/homework/matchresponse.pm, revision 1.82

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # Full matching style response
                      3: #
1.82    ! raeburn     4: # $Id: matchresponse.pm,v 1.81 2010/12/19 00:54:20 raeburn 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();
1.37      albertel   33: use Apache::optionresponse();
                     34: use Apache::lonlocal;
1.52      albertel   35: use Apache::lonnet;
1.71      onken      36: use Apache::lonxml;
1.6       sakharuk   37: 
1.1       albertel   38: BEGIN {
                     39:     &Apache::lonxml::register('Apache::matchresponse',('matchresponse'));
                     40: }
                     41: 
                     42: sub start_matchresponse {
                     43:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     44:     my $result;
                     45:     #when in a matchresponse use these
                     46:     &Apache::lonxml::register('Apache::matchresponse',
                     47: 			      ('foilgroup','foil','conceptgroup','item',
                     48: 			       'itemgroup'));
                     49:     push (@Apache::lonxml::namespace,'matchresponse');
                     50:     my $id = &Apache::response::start_response($parstack,$safeeval);
                     51:     %Apache::hint::match=();
1.37      albertel   52:     undef(%Apache::response::foilnames);
1.1       albertel   53:     if ($target eq 'meta') {
                     54: 	$result=&Apache::response::meta_package_write('matchresponse');
                     55:     } elsif ($target eq 'edit' ) {
                     56: 	$result.=&Apache::edit::start_table($token).
1.73      raeburn    57: 	    '<tr><td>'.&Apache::lonxml::description($token).'</td>'
1.72      bisitz     58:            .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
                     59: 	   .&Apache::edit::deletelist($target,$token)
                     60:            .'</span></td>'
1.73      raeburn    61:            .'<td>&nbsp;'.&Apache::edit::end_row()
1.72      bisitz     62: 	   .&Apache::edit::start_spanning_row();
1.1       albertel   63: 	
                     64: 	$result.=
                     65: 	    &Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
1.72      bisitz     66: 	    &Apache::edit::select_arg('Randomize Foil Order:','randomize',
1.1       albertel   67: 				      ['yes','no'],$token).
                     68: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n";
                     69:     } elsif ($target eq 'modified') {
                     70: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                     71: 						     $safeeval,'max',
                     72: 						     'randomize');
                     73: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.28      albertel   74:     } elsif ($target eq 'analyze') {
                     75: 	my $part_id="$Apache::inputtags::part.$id";
1.69      raeburn    76:         $Apache::lonhomework::analyze{"$part_id.type"} = 'matchresponse';
1.28      albertel   77: 	push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
1.68      raeburn    78: 	push (@{ $Apache::lonhomework::analyze{"$part_id.bubble_lines"} },
1.65      foxr       79: 	      1);
1.1       albertel   80:     }
                     81:     return $result;
                     82: }
                     83: 
                     84: sub end_matchresponse {
                     85:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     86:     my $result;
                     87:     if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
                     88:     &Apache::response::end_response;
                     89:     pop @Apache::lonxml::namespace;
                     90:     &Apache::lonxml::deregister('Apache::matchresponse',
                     91: 				('foilgroup','foil','conceptgroup'));
1.37      albertel   92:     undef(%Apache::response::foilnames);
1.1       albertel   93:     return $result;
                     94: }
                     95: 
                     96: %Apache::response::itemgroup=();
                     97: sub start_itemgroup {
                     98:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     99:     my $result;
                    100:     %Apache::response::itemgroup=();
1.4       albertel  101:     %Apache::matchresponse::itemtable=();
1.15      albertel  102: 
1.1       albertel  103:     if ($target eq 'edit') {
                    104: 	$result=&Apache::edit::tag_start($target,$token);
                    105: 	$result.=&Apache::edit::select_arg('Randomize Order:','randomize',
1.73      raeburn   106: 					   ['yes','no'],$token).'&nbsp;'x 3;
1.4       albertel  107: 	$result.=&Apache::edit::select_arg('Items Display Location:',
                    108: 					   'location',
                    109: 					   ['top','bottom','left','right'],
1.73      raeburn   110: 					   $token).'&nbsp;'x 3;
                    111: 	$result.=&Apache::edit::select_arg('Items Display Direction:',
1.51      albertel  112: 					   'direction',
                    113: 					   ['vertical','horizontal'],
                    114: 					   $token);
1.1       albertel  115: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.4       albertel  116:     } elsif ($target eq 'modified') {
                    117: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    118: 						     $safeeval,'randomize',
1.51      albertel  119: 						     'location','direction');
1.4       albertel  120: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.21      sakharuk  121:     } elsif ($target eq 'web' or $target eq 'tex') {
1.4       albertel  122: 	$Apache::matchresponse::itemtable{'location'}=
                    123: 	    &Apache::lonxml::get_param('location',$parstack,$safeeval);
1.43      sakharuk  124: 	$Apache::matchresponse::TeXitemgroupwidth=&Apache::lonxml::get_param('TeXitemgroupwidth',$parstack,$safeeval,undef,0);
1.1       albertel  125:     }
                    126:     return $result;
                    127: }
                    128: 
                    129: sub end_itemgroup {
                    130:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    131:     my $result;
                    132: 
1.17      albertel  133:     if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
1.1       albertel  134:     if (!defined(@{ $Apache::response::itemgroup{'names'} })) { return; }
                    135:     my @names=@{ $Apache::response::itemgroup{'names'} };
                    136:     my $randomize =&Apache::lonxml::get_param('randomize',$parstack,$safeeval);
1.2       albertel  137:     if ($randomize ne 'no' ) {
1.18      albertel  138: 	@names=&Apache::response::whichorder($#names+1,$randomize,0,
                    139: 					 \%Apache::response::itemgroup);
1.1       albertel  140:     }
1.30      albertel  141:     if ($target eq 'analyze') {
                    142: 	my $partid="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
                    143: 	push (@{ $Apache::lonhomework::analyze{"$partid.items"} }, @names);
                    144:     }
1.1       albertel  145:     my %letter_name_map;
                    146:     my %name_letter_map;
                    147:     my @alphabet=('A'..'Z');
                    148:     my $i=0;
                    149:     foreach my $name (@names) {
                    150: 	$letter_name_map{$alphabet[$i]}=$name;
                    151: 	$name_letter_map{$name}=$alphabet[$i];
                    152: 	$i++;
                    153:     }
1.15      albertel  154:     $Apache::response::itemgroup{'letter_name_map'}=\%letter_name_map;
1.1       albertel  155:     $Apache::response::itemgroup{'name_letter_map'}=\%name_letter_map;
1.51      albertel  156:     my $direction=&Apache::lonxml::get_param('direction',$parstack,$safeeval);
1.1       albertel  157:     if ($target eq 'web') {
1.58      foxr      158: 	
                    159: 	my $table='<br /><table>'; # extra space to match what latex does.
1.1       albertel  160: 	my $i=0;
1.51      albertel  161: 	if ($direction eq 'horizontal') { $table .='<tr>';}
1.1       albertel  162: 	foreach my $name (@names) {
1.51      albertel  163: 	    if ($direction ne 'horizontal') { $table.='<tr>'; }
                    164: 	    $table.='<td>'.$alphabet[$i].'</td><td>'.
                    165: 		$Apache::response::itemgroup{$name.'.text'}.'</td>';
                    166: 	    if ($direction ne 'horizontal') { $table.='</tr>'; }
1.1       albertel  167: 	    $i++;
                    168: 	}
1.51      albertel  169: 	if ($direction eq 'horizontal') { $table .='</tr>';}
1.4       albertel  170: 	$table.='</table>';
                    171: 	$Apache::matchresponse::itemtable{'display'}=$table;
1.60      albertel  172: 	$Apache::lonxml::post_evaluate=0;
1.5       sakharuk  173:     } elsif ($target eq 'tex') {
1.58      foxr      174: 	my $table=' \begin{description}\setlength{\leftmargin}{2em}\setlength{\labelwidth}{1em}\setlength{\itemsep}{0.5pt plus1pt minus2pt}\setlength{\listparindent}{0em} ';
1.5       sakharuk  175: 	my $i=0;
1.82    ! raeburn   176:         my ($numrows,$bubbles_per_row);
        !           177:         if ($Apache::lonhomework::type eq 'exam') {
        !           178:             ($numrows,$bubbles_per_row) = 
        !           179:                 &Apache::optionresponse::getnumrows(scalar(@names)); 
        !           180:         } else {
        !           181:             $numrows = 1;
        !           182:         }
1.5       sakharuk  183: 	foreach my $name (@names) {
1.59      foxr      184: 	    # $Apache::response::itemgroup{$name.'.text'}=~s/\$\$/\$/g;
1.82    ! raeburn   185:             my $item;
        !           186:             if (($numrows > 1) && ($bubbles_per_row > 0)) {
        !           187:                 my $num = 1+int($i/$bubbles_per_row);
        !           188:                 my $idx = int($i % $bubbles_per_row);
        !           189:                 if ($idx == 0) {
        !           190:                     if ($num == 1) {
        !           191:                         $table .= '\item[\footnotesize {'.&mt('(first line)').'}]';
        !           192:                     } else {
        !           193:                         $table .= '\item[\footnotesize {'.&mt('(next line)').'}]';
        !           194:                     }
        !           195:                 }
        !           196:                 $item = $alphabet[$idx];
        !           197:             } else {
        !           198:                 $item = $alphabet[$i];
        !           199:             }
        !           200: 	    $table.='\item['.$item.'] '.
1.58      foxr      201: 		$Apache::response::itemgroup{$name.'.text'};
1.5       sakharuk  202: 	    $i++;
                    203: 	}
1.58      foxr      204: 	$table.=' \end{description}  \strut ';
1.77      foxr      205: 	if ($Apache::lonhomework::type eq 'exam')  {$table.='\vskip -13 mm \strut ';}
1.5       sakharuk  206: 	$Apache::matchresponse::itemtable{'display'}=$table;
1.60      albertel  207: 	$Apache::lonxml::post_evaluate=0;
1.17      albertel  208:     }
1.1       albertel  209:     return $result;
                    210: }
                    211: 
                    212: sub start_item {
                    213:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    214:     my $result='';
1.30      albertel  215:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  216: 	&Apache::lonxml::startredirection;
                    217:     } elsif ($target eq 'edit') {
1.3       albertel  218: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
                    219: 						 $safeeval,'-2');
1.1       albertel  220: 	$result=&Apache::edit::tag_start($target,$token,"Item");
                    221: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
1.3       albertel  222: 	if ($randomize ne 'no') {
1.73      raeburn   223: 	    $result.='&nbsp;'x 3 .
                    224:                      &Apache::edit::select_arg('Location:','location',
1.3       albertel  225: 					       ['random','top','bottom'],
                    226: 					       $token);
                    227: 	}
                    228: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.1       albertel  229:     } elsif ($target eq 'modified') {
                    230: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.3       albertel  231: 						     $safeeval,'name',
                    232: 						     'location');
1.1       albertel  233: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    234:     }
                    235:     return $result;
                    236: }
                    237: 
                    238: sub end_item {
                    239:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    240:     my $text ='';
                    241:     my $result = '';
1.30      albertel  242:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  243: 	$text=&Apache::lonxml::endredirection;
                    244:     }
                    245:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.30      albertel  246: 	$target eq 'edit' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  247: 	my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
1.3       albertel  248: 	my $location=&Apache::lonxml::get_param('location',$parstack,
                    249: 						$safeeval);
1.1       albertel  250: 	&Apache::lonxml::debug("Got a name of :$name:");
1.55      albertel  251: 	if ($name eq "") { $name=$Apache::lonxml::curdepth; }
1.1       albertel  252: 	&Apache::lonxml::debug("Using a name of :$name:");
                    253: 	push @{ $Apache::response::itemgroup{'names'} }, $name;
                    254: 	$Apache::response::itemgroup{"$name.text"} = $text;
1.3       albertel  255: 	$Apache::response::itemgroup{"$name.location"} = $location;
1.1       albertel  256:     }
                    257:     if ($target eq 'edit') {
                    258: 	$result.= &Apache::edit::tag_end($target,$token,'');
                    259:     }
                    260:     return $result;
                    261: }
                    262: 
                    263: sub insert_item {
                    264:     return '
                    265: <item name="">
                    266: <startouttext />
                    267: <endouttext />
                    268: </item>';
                    269: }
                    270: 
                    271: %Apache::response::foilgroup=();
                    272: sub start_foilgroup {
                    273:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    274:     my $result;
                    275:     %Apache::response::foilgroup=();
                    276:     $Apache::matchresponse::conceptgroup=0;
1.81      raeburn   277:     &Apache::response::pushrandomnumber(undef,$target);
1.1       albertel  278:     if ($target eq 'edit') {
                    279: 	$result.=&Apache::edit::start_table($token)
1.73      raeburn   280: 	    .'<tr><td>'.&mt('Collection Of Foils').'</td>'
1.72      bisitz    281:             .'<td><span class="LC_nobreak">'.&mt('Delete?')
1.1       albertel  282: 	    .&Apache::edit::deletelist($target,$token)
1.72      bisitz    283: 	    .'</span></td>'
1.73      raeburn   284:             .'<td>&nbsp;'.&Apache::edit::end_row()
1.1       albertel  285:             .&Apache::edit::start_spanning_row()."\n";
                    286:     }
                    287:     return $result;
                    288: }
                    289: 
                    290: sub end_foilgroup {
                    291:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    292:     my $result;
1.67      foxr      293:     my $part        = $Apache::inputtags::part;
1.68      raeburn   294:     my $response_id = $Apache::inputtags::response[-1];
1.67      foxr      295: 
1.28      albertel  296:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  297: 	my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
                    298: 	my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
                    299: 						   $safeeval,'-2');
1.5       sakharuk  300: 	if ($target eq 'web' || $target eq 'tex') {
1.1       albertel  301: 	    $result=&displayfoils($target,$max,$randomize);
1.60      albertel  302: 	    $Apache::lonxml::post_evaluate=0;
1.1       albertel  303: 	} elsif ($target eq 'answer' ) {
                    304: 	    $result=&displayanswers($max,$randomize);
                    305: 	} elsif ( $target eq 'grade') {
                    306: 	    &grade_response($max,$randomize);
1.28      albertel  307: 	} elsif ( $target eq 'analyze') {
                    308: 	    my @shown=&whichfoils($max,$randomize);
                    309: 	    &Apache::response::analyze_store_foilgroup(\@shown,
1.29      albertel  310: 						 ['text','value','location']);
1.28      albertel  311: 	    #FIXME need to store options in some way
1.1       albertel  312: 	}
1.82    ! raeburn   313:         my ($numrows,$bubbles_per_row);
        !           314:         if (($target eq 'tex') && ($Apache::lonhomework::type eq 'exam')) {
        !           315:             my $numitems;
        !           316:             if (ref($Apache::response::itemgroup{'names'}) eq 'ARRAY') {
        !           317:                 $numitems = scalar(@{ $Apache::response::itemgroup{'names'} });
        !           318:                 ($numrows,$bubbles_per_row) =
        !           319:                     &Apache::optionresponse::getnumrows($numitems);
        !           320:             }
        !           321:         }
        !           322:         if ($numrows < 1) {
        !           323:             $numrows = 1;
        !           324:         }
        !           325:         my $increment = &getfoilcounts($max) * $numrows;
        !           326: 	&Apache::lonxml::increment_counter($increment,"$part.$response_id");
1.66      foxr      327: 	if ($target eq 'analyze') {
                    328: 	    &Apache::lonhomework::set_bubble_lines();
                    329: 	}
                    330: 
1.1       albertel  331:     } elsif ($target eq 'edit') {
                    332: 	$result=&Apache::edit::end_table();
                    333:     }
1.41      albertel  334:     &Apache::response::poprandomnumber();
1.1       albertel  335:     return $result;
1.29      albertel  336: }
                    337: 
                    338: sub whichfoils {
                    339:     my ($max,$randomize)=@_;
                    340:     return &Apache::response::whichorder(&getfoilcounts($max),
                    341: 					 $randomize,
                    342: 					 &Apache::response::showallfoils(),
                    343: 					 \%Apache::response::foilgroup);
1.1       albertel  344: }
                    345: 
                    346: sub displayanswers {
                    347:     my ($max,$randomize,@opt)=@_;
                    348:     if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
                    349:     my @names = @{ $Apache::response::foilgroup{'names'} };
1.18      albertel  350:     my @whichfoils = &Apache::response::whichorder(&getfoilcounts($max),
                    351: 						   $randomize,
                    352: 					  &Apache::response::showallfoils(),
                    353: 					 \%Apache::response::foilgroup);
1.1       albertel  354:     my %name_letter_map;
                    355:     if (defined(%{ $Apache::response::itemgroup{'name_letter_map'} })) {
                    356: 	%name_letter_map=
                    357: 	    %{ $Apache::response::itemgroup{'name_letter_map'} };
                    358:     }
1.56      albertel  359:     my $result;
                    360:     if ($Apache::lonhomework::type eq 'exam') {
                    361: 	my $i=0;
                    362: 	foreach my $name (@whichfoils) {
                    363: 	    $result.=&Apache::response::answer_header('matchresponse',$i++);
                    364: 	    my $value_name=$Apache::response::foilgroup{$name.'.value'};
                    365: 	    my $letter=$name_letter_map{$value_name};
                    366: 	    $result.=&Apache::response::answer_part('matchresponse',$letter);
                    367: 	    $result.=&Apache::response::answer_footer('matchresponse');
                    368: 	}
                    369:     } else {
                    370: 	$result=&Apache::response::answer_header('matchresponse');
                    371: 	foreach my $name (@whichfoils) {
                    372: 	    my $value_name=$Apache::response::foilgroup{$name.'.value'};
                    373: 	    my $letter=$name_letter_map{$value_name};
                    374: 	    $result.=&Apache::response::answer_part('matchresponse',$letter);
                    375: 	}
                    376: 	$result.=&Apache::response::answer_footer('matchresponse');
1.1       albertel  377:     }
                    378:     return $result;
                    379: }
                    380: 
                    381: 
                    382: sub grade_response {
                    383:     my ($max,$randomize)=@_;
1.18      albertel  384:     my (@whichfoils)=&Apache::response::whichorder(&getfoilcounts($max),
                    385: 						   $randomize,
                    386: 				            &Apache::response::showallfoils(),
                    387: 				           \%Apache::response::foilgroup);
1.50      albertel  388:     if (!&Apache::response::submitted()) { return; }
1.1       albertel  389:     my %responsehash;
                    390:     my %grade;
1.81      raeburn   391:     my %answerhash;
1.33      albertel  392:     my ($temp,$right,$wrong,$ignored)=(1,0,0,0);
1.1       albertel  393:     my %letter_name_map;
                    394:     if (defined(%{ $Apache::response::itemgroup{'letter_name_map'} })) {
                    395: 	%letter_name_map=
                    396: 	    %{ $Apache::response::itemgroup{'letter_name_map'} };
                    397:     }
1.30      albertel  398:     my @items;
1.82    ! raeburn   399:     my $numitems = scalar(@{ $Apache::response::itemgroup{'names'} });
        !           400:     my ($numrows,$bubbles_per_row);
        !           401:     if ($Apache::lonhomework::scantronmode) {
        !           402:         my $numitems = scalar(@{ $Apache::response::itemgroup{'names'} });
        !           403:         ($numrows,$bubbles_per_row) =
        !           404:             &Apache::optionresponse::getnumrows($numitems);
        !           405:     }
        !           406:     if ($numrows < 1) {
        !           407:         $numrows = 1;
        !           408:     }
        !           409:     my @alphabet=('A'..'Z');
        !           410:     my %nums_from_letters;
        !           411:     for (my $i=0; $i<@alphabet; $i++) {
        !           412:         $nums_from_letters{$alphabet[$i]} = $i;
        !           413:     }
1.1       albertel  414:     foreach my $name (@whichfoils) {
1.82    ! raeburn   415:         my $response;
        !           416:         if ($numrows > 1) {
        !           417:             my $num = $temp;
        !           418:             my $totalnum;
        !           419:             for (my $i=0; $i<$numrows; $i++) {
        !           420:                 my $item = &Apache::response::getresponse($num,'letter');
        !           421:                 if ($item =~ /^\w$/) {
        !           422:                     $totalnum = $i*$bubbles_per_row + $nums_from_letters{$item};
        !           423:                 }
        !           424:                 $num ++;
        !           425:             }
        !           426:             if ($totalnum =~ /^\d+$/) {
        !           427:                 $response = $alphabet[$totalnum];
        !           428:             }
        !           429:             $temp += $numrows;
        !           430:         } else {
        !           431: 	    $response = &Apache::response::getresponse($temp,'letter');
        !           432:             $temp ++;
        !           433:         }
1.30      albertel  434: 	push(@items,$response);
1.1       albertel  435: 	my $responsename = $letter_name_map{$response};
                    436: 	my $value=$Apache::response::foilgroup{$name.'.value'};
1.81      raeburn   437:         if ($Apache::lonhomework::type eq 'randomizetry') {
                    438:             $answerhash{$name} = $value;
                    439:         }
1.1       albertel  440: 	if ( $response =~ /[^\s]/) {
1.31      albertel  441: 	    $responsehash{$name}=$responsename;
1.33      albertel  442: 	    &Apache::lonxml::debug("submitted a $response($responsename) for $value<br />\n");
1.1       albertel  443: 	    if ($value eq $responsename) {
                    444: 		$grade{$name}='1'; $right++;
                    445: 	    } else {
                    446: 		$grade{$name}='0'; $wrong++;
                    447: 	    }
                    448: 	} else {
                    449: 	    $ignored++;
                    450: 	}
                    451:     }
                    452:     my $part=$Apache::inputtags::part;
                    453:     my $id = $Apache::inputtags::response['-1'];
                    454:     my $responsestr=&Apache::lonnet::hash2str(%responsehash);
1.30      albertel  455:     my $itemstr    =&Apache::lonnet::array2str(@items);
1.1       albertel  456:     my $gradestr   =&Apache::lonnet::hash2str(%grade);
1.30      albertel  457:     my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
1.1       albertel  458:     &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored ");
                    459:     $Apache::lonhomework::results{"resource.$part.$id.submission"}=
                    460: 	$responsestr;
1.30      albertel  461:     $Apache::lonhomework::results{"resource.$part.$id.submissionitems"}=
                    462: 	$itemstr;
1.1       albertel  463:     $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=
                    464: 	$gradestr;
1.81      raeburn   465:     if ($Apache::lonhomework::type eq 'randomizetry') {
                    466:         $Apache::lonhomework::results{"resource.$part.$id.foilorder"} = &Apache::lonnet::array2str(@whichfoils);
                    467:     }
1.79      raeburn   468:     if (($Apache::lonhomework::type eq 'survey') ||
                    469:         ($Apache::lonhomework::type eq 'surveycred') ||
                    470:         ($Apache::lonhomework::type eq 'anonsurvey') ||
                    471:         ($Apache::lonhomework::type eq 'anonsurveycred')) {
1.47      albertel  472: 	if ($ignored == 0) {
1.79      raeburn   473: 	    my $ad;
                    474:             if ($Apache::lonhomework::type eq 'anonsurvey') {
                    475:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS';
                    476:             } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
                    477:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS_CREDIT';
                    478:             } elsif ($Apache::lonhomework::type eq 'surveycred') {
                    479:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED_CREDIT';
                    480:             } else {
                    481:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
                    482:             }
1.47      albertel  483: 	    &Apache::response::handle_previous(\%previous,$ad);
                    484: 	} elsif ($wrong==0 && $right==0) {
                    485: 	} else {
                    486: 	    my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
                    487: 	    &Apache::response::handle_previous(\%previous,$ad);
                    488: 	}
                    489:     } elsif (!$Apache::lonhomework::scantronmode) {
1.34      albertel  490: 	my $ad;
                    491: 	if ($wrong==0 && $ignored==0) {
                    492: 	    $ad='EXACT_ANS';
                    493: 	} elsif ($wrong==0 && $right==0) {
                    494: 	    #nothing submitted
                    495: 	} else {
                    496: 	    if ($ignored==0) {
                    497: 		$ad='INCORRECT';
                    498: 	    } else {
                    499: 		$ad='MISSING_ANSWER';
                    500: 	    }
                    501: 	}
                    502: 	$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
                    503: 	&Apache::response::handle_previous(\%previous,$ad);
                    504:     } else {
                    505: 	my $ad;
                    506: 	if ($wrong==0 && $right==0) {
                    507: 	    #nothing submitted
                    508: 	} else {
                    509: 	    $ad='ASSIGNED_SCORE';
                    510: 	    $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
                    511: 		$ad;
                    512: 	    $Apache::lonhomework::results{"resource.$part.$id.awarded"}=
1.35      albertel  513: 		$right/(scalar(@whichfoils));
1.34      albertel  514: 	    $Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
1.35      albertel  515: 		scalar(@whichfoils);
1.34      albertel  516: 	}
                    517:     }
1.1       albertel  518: }
                    519: 
1.64      albertel  520: sub format_prior_answer {
                    521:     my ($mode,$answer,$other_data) = @_;
                    522:     my %answer      =&Apache::lonnet::str2hash($answer);
                    523:     my $foil_order  =$other_data->[0];
                    524:     my %grading     =&Apache::lonnet::str2hash($other_data->[1]);
                    525:     my @items       =&Apache::lonnet::str2array($other_data->[2]);
                    526:     my $output;
                    527:     
                    528:     foreach my $name (@{ $foil_order }) {
                    529: 	my $item=shift(@items);
                    530: 	$output .= '<tr><td>'.$item.'</td></tr>';
                    531:     }
                    532:     return if (!defined($output));
                    533: 
                    534:     $output = '<table class="LC_prior_match">'.$output.'</table>';
                    535:     return $output;
                    536: }
                    537: 
1.4       albertel  538: sub itemdisplay {
                    539:     my ($location)=@_;
                    540:     if ($location eq 'top' &&
                    541: 	!defined($Apache::matchresponse::itemtable{'location'})) {
                    542: 	return $Apache::matchresponse::itemtable{'display'};
                    543:     }
                    544:     if ($Apache::matchresponse::itemtable{'location'} eq $location) {
                    545: 	return $Apache::matchresponse::itemtable{'display'};
                    546:     }
                    547:     return undef;
                    548: }
1.64      albertel  549: 
1.1       albertel  550: sub displayfoils {
                    551:     my ($target,$max,$randomize)=@_;
1.62      foxr      552:     my ($tabsize, $lefttabsize, $righttabsize);
                    553: 
1.1       albertel  554:     my $result;
1.4       albertel  555:     my $question;
1.18      albertel  556:     my (@whichfoils)=&Apache::response::whichorder(&getfoilcounts($max),
                    557: 						   $randomize,
                    558: 				            &Apache::response::showallfoils(),
                    559: 				           \%Apache::response::foilgroup);
1.1       albertel  560:     my $part=$Apache::inputtags::part;
                    561:     my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
                    562:     my %letter_name_map;
                    563:     if (defined(%{ $Apache::response::itemgroup{'letter_name_map'} })) {
                    564: 	%letter_name_map=
                    565: 	    %{ $Apache::response::itemgroup{'letter_name_map'} };
                    566:     }
                    567:     my %name_letter_map;
                    568:     if (defined(%{ $Apache::response::itemgroup{'name_letter_map'} })) {
                    569: 	%name_letter_map=
                    570: 	    %{ $Apache::response::itemgroup{'name_letter_map'} };
                    571:     }
1.25      albertel  572:     if ( &Apache::response::show_answer() && ($target ne 'tex')) {
1.1       albertel  573: 	foreach my $name (@whichfoils) {
                    574: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
                    575: 	    my $value=$Apache::response::foilgroup{$name.'.value'};
                    576: 	    my $letter=$name_letter_map{$value};
1.5       sakharuk  577: 	    if ($target eq 'tex') {
                    578: 		$question.=' \\\\ '.$letter.':'.$text;
                    579: 	    } else {
1.53      albertel  580: 		$question.='<br /><b>'.$letter.':</b> '.$text;
1.5       sakharuk  581: 	    }
1.1       albertel  582: 	}
                    583:     } else {
                    584: 	my $i = 0;
1.36      albertel  585: 	my $temp=1;
1.1       albertel  586: 	my $id=$Apache::inputtags::response[-1];
                    587: 	my $part=$Apache::inputtags::part;
1.81      raeburn   588:         my ($lastresponse,$newvariation);
                    589:         if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
                    590:             ($Apache::lonhomework::type eq 'randomizetry')) &&
                    591:             ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
                    592:             if ($env{'form.'.$part.'.rndseed'} ne
                    593:                 $Apache::lonhomework::history{"resource.$part.rndseed"}) {
                    594:                 $newvariation = 1;
                    595:             }
                    596:         }
                    597:         unless ((($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') || ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred') && (defined($env{'form.grade_symb'}))) || $newvariation) {
1.79      raeburn   598: 	    $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
                    599:         }
1.9       sakharuk  600: 	my %lastresponse=&Apache::lonnet::str2hash($lastresponse);    
                    601: 	my @alphabet=('A'..'Z');
1.15      albertel  602: 	my @used_letters=sort(keys(%letter_name_map));
1.20      sakharuk  603: 	my $internal_counter=$Apache::lonxml::counter;
1.82    ! raeburn   604:         my ($numrows,$bubbles_per_row);
        !           605:         if (($target eq 'tex') && ($Apache::lonhomework::type eq 'exam')) {
        !           606:             ($numrows,$bubbles_per_row) = 
        !           607:                 &Apache::optionresponse::getnumrows(scalar(@used_letters));
        !           608:         } else {
        !           609:             $numrows = 1;
        !           610:         }
1.1       albertel  611: 	foreach my $name (@whichfoils) {
                    612: 	    my $lastopt=$lastresponse{$name};
                    613: 	    my $last_letter=$name_letter_map{$lastopt};
1.5       sakharuk  614: 	    my $optionlist = '';
1.7       sakharuk  615: 	    if ($target ne 'tex') {
                    616: 		$optionlist="<option></option>\n";
                    617: 	    } else {
                    618: 		if ($Apache::lonhomework::type ne 'exam') {
1.76      onken     619:                     if($env{'form.pdfFormFields'} eq 'yes'
                    620:                        && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER') {
1.75      raeburn   621:                         my $fieldname = $env{'request.symb'} . '&part_'. $Apache::inputtags::part .'&matchresponse'. '&HWVAL_' . $Apache::inputtags::response['-1'] . ':' . $temp . '&submit_' . $Apache::inputtags::part . '&';
                    622:                         $optionlist = &Apache::lonxml::print_pdf_start_combobox($fieldname);
                    623:                     } else {
1.77      foxr      624: 
1.75      raeburn   625:                         $optionlist='\framebox[10 mm][s]{\tiny\strut}';
                    626:                     }
1.74      raeburn   627:                 }
1.7       sakharuk  628: 	    }
1.1       albertel  629: 	    my $option;
1.15      albertel  630: 	    foreach $option (@used_letters) {
1.1       albertel  631: 		if ($option eq $last_letter) {
1.71      onken     632: 		    if ($target ne 'tex') {
1.81      raeburn   633:                         $optionlist.="<option selected=\"selected\">$option</option>\n";
1.76      onken     634:                     } elsif ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
1.80      onken     635:                              && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER'
                    636:                              && $Apache::lonhomework::type ne 'exam') {
1.75      raeburn   637:                         $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
1.71      onken     638:                     }
1.1       albertel  639: 		} else {
1.71      onken     640: 		    if ($target ne 'tex') {
                    641:                         $optionlist.="<option>$option</option>\n";
1.76      onken     642:                     } elsif ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
1.80      onken     643:                              && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER'
                    644:                              && $Apache::lonhomework::type ne 'exam') {
1.75      raeburn   645:                         $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
1.71      onken     646:                     }
1.1       albertel  647: 		}
                    648: 	    }
1.19      sakharuk  649: 	    if ($target ne 'tex' && $Apache::lonhomework::type ne 'exam') {
1.61      albertel  650: 	        $optionlist='<select onchange="javascript:setSubmittedPart(\''.
                    651: 		  $part.'\');" name="HWVAL_'.
1.5       sakharuk  652: 		    $Apache::inputtags::response[-1].':'.$temp.'">'.
                    653: 		        $optionlist."</select>\n";
                    654: 	    }
1.1       albertel  655: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
1.62      foxr      656: 	    #
                    657:             #  Factor out the tex computations of the left/right 1/2 minipage
                    658: 	    #  widths for left or right positioning.  This allows us
                    659: 	    #  to, if necessary constrain the bubble widths:
                    660: 	    #
                    661: 	    if ($target eq 'tex'   &&
                    662: 		(&itemdisplay('left') || &itemdisplay('right'))) {
                    663: 		$tabsize=&Apache::londefdef::recalc($env{'form.textwidth'});
                    664: 		($lefttabsize,$righttabsize)=(0,0);
                    665: 		if ($Apache::matchresponse::TeXitemgroupwidth ne '') {
                    666: 		    $Apache::matchresponse::TeXitemgroupwidth=~/(\d*.?\d*)/;
                    667: 		    $lefttabsize=$tabsize*$1/100;	
                    668: 		    $righttabsize=0.95*($tabsize-$lefttabsize);
                    669: 		} else {
                    670: 		    $tabsize=~/(\d+\.?\d*)/;
                    671: 		    $lefttabsize=$1/2.1;
                    672: 		    $righttabsize=0.95*($1-$lefttabsize);
                    673: 		}
                    674: 	    }
1.5       sakharuk  675: 	    if ($target ne 'tex') {
1.19      sakharuk  676: 		if ($Apache::lonhomework::type ne 'exam') {
1.45      albertel  677: 		    $question.="<br />\n".$optionlist.$text;
1.19      sakharuk  678: 		} else {
1.45      albertel  679: 		    $question.="<br />\n".$text;
1.19      sakharuk  680: 		}
1.6       sakharuk  681: 		if ($Apache::lonhomework::type eq 'exam') {
1.42      albertel  682: 		    my @blank;
                    683: 		    $question.=&Apache::optionresponse::webbubbles(\@used_letters,\@blank,$temp,$last_letter);
1.6       sakharuk  684: 		}
                    685: 	    } else {		
1.62      foxr      686: 		# Note that if left or right positioned, we must
                    687: 		# confine the bubbles to righttabsize:
                    688: 		#
1.80      onken     689: 		if ($Apache::lonhomework::type eq 'exam') {
1.6       sakharuk  690: 		    $question.=' '.$optionlist.$text."\n";
1.13      sakharuk  691: 		    my @emptyItems = ();
1.16      albertel  692: 		    for (my $i=0;$i<=$#used_letters;$i++) {push @emptyItems, ' ';}
1.62      foxr      693: 		    $question.='\vskip -1 mm\noindent\begin{list}{}{\setlength{\listparindent}{0mm}\setlength{\leftmargin}{2mm}}'
1.82    ! raeburn   694: 			.'\item \hskip -3mm ';
        !           695:                     if ($numrows == 1) {
        !           696:                         $question .= '\textbf{'.$internal_counter.'}';
        !           697:                     } else {
        !           698:                         my $linetext;
        !           699:                         for (my $i=0; $i<$numrows; $i++) {
        !           700:                             $linetext .= $internal_counter+$i.', ';
        !           701:                         }
        !           702:                         $linetext =~ s/,\s$//;
        !           703:                         $question .= '\small {\textbf{'.$linetext.'}} '.
        !           704:                                      '\hskip 2 mm {\footnotesize '.
        !           705:                                      &mt('(Bubble once in [_1] lines)',$numrows).
        !           706:                                      '} \vskip 3 mm';
        !           707:                     }
        !           708:                     my $max_width;
1.62      foxr      709: 		    if (&itemdisplay('left') || &itemdisplay('right')) {
1.82    ! raeburn   710:                         $max_width = $righttabsize;
        !           711:                     }
        !           712: 		    $question .= '\vskip -4 mm' . &Apache::optionresponse::bubbles(\@used_letters,\@emptyItems,'',$max_width,$numrows,$bubbles_per_row,$internal_counter);
1.62      foxr      713: 		    $question .= '\end{list} \vskip -8 mm \strut ';
1.82    ! raeburn   714: 		    $internal_counter += $numrows;
1.6       sakharuk  715: 	        } else {
1.76      onken     716:                     if($env{'form.pdfFormFields'} eq 'yes' 
                    717:                             && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER') {
1.75      raeburn   718:                         $question .= " $optionlist ". &Apache::lonxml::print_pdf_end_combobox($text).'\strut';
                    719:                     } else {
                    720:                         $question.=' '.$optionlist.$text.'\strut\\\\\strut '."\n";
                    721:                     }
1.6       sakharuk  722: 		}
1.5       sakharuk  723:             } 
1.1       albertel  724: 	    $temp++;
                    725: 	}
1.4       albertel  726:     }
                    727:     if ($result=&itemdisplay('top')) {
                    728: 	$result.=$question;
                    729:     } elsif ($result=&itemdisplay('bottom')) {
                    730: 	$result=$question.$result;
                    731:     } elsif ($result=&itemdisplay('right')) {
1.32      sakharuk  732: 	if ($target ne 'tex') {
1.45      albertel  733: 	    #remove the first <br />
                    734: 	    $question=~s|<br />||;
                    735: 	    $result='<table><tr><td valign="top">'.$question.
                    736: 		'</td><td valign="top">'.$result.'</td></tr></table>';
1.32      sakharuk  737: 	} else {
1.43      sakharuk  738: 	    $lefttabsize.=' mm ';
                    739: 	    $righttabsize.=' mm ';
                    740: 	    $result='\setlength{\tabcolsep}{1 mm}\begin{tabular}{p{'.$righttabsize.'}p{'.$lefttabsize.'}}\begin{minipage}{'.$righttabsize.'}'.$question.'\end{minipage}&\begin{minipage}{'.$lefttabsize.'}'.$result.'\end{minipage}\end{tabular}';
1.32      sakharuk  741: 	}
1.4       albertel  742:     } elsif ($result=&itemdisplay('left')) {
1.32      sakharuk  743: 	if ($target ne 'tex') {
1.45      albertel  744: 	    #remove the first <br />
                    745: 	    $question=~s|<br />||;
                    746: 	    $result='<table><tr><td valign="top">'.$result.
                    747: 		'</td><td valign="top">'.$question.'</td></tr></table>';
1.32      sakharuk  748: 	} else {
1.43      sakharuk  749: 	    $lefttabsize.=' mm ';
                    750: 	    $righttabsize.=' mm ';
                    751: 	    $result='\setlength{\tabcolsep}{1 mm}\begin{tabular}{p{'.$lefttabsize.'}p{'.$righttabsize.'}}\begin{minipage}{'.$lefttabsize.'}'.$result.'\end{minipage}&\begin{minipage}{'.$righttabsize.'}'.$question.'\end{minipage}\end{tabular}';
1.32      sakharuk  752: 	}
1.1       albertel  753:     }
1.64      albertel  754:     if ($target eq 'web') {
1.81      raeburn   755:         my $questiontype;
                    756:         if ($Apache::lonhomework::type eq 'randomizetry') {
                    757:             $questiontype = $Apache::lonhomework::type;
                    758:         }
1.64      albertel  759: 	&Apache::response::setup_prior_tries_hash(\&format_prior_answer,
                    760: 						  [\@whichfoils,
                    761: 						   'submissiongrading',
1.81      raeburn   762: 						   'submissionitems'],
                    763:                                                   $questiontype);
1.64      albertel  764:     }
1.5       sakharuk  765:     if ($target ne 'tex') {$result.="<br />";} else {$result.=' \\\\ ';}
1.1       albertel  766:     return $result;
                    767: }
                    768: 
                    769: sub getfoilcounts {
                    770:     my ($max)=@_;
                    771:     # +1 since instructors will count from 1
                    772:     my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
                    773:     if (&Apache::response::showallfoils()) { $max=$count; }
                    774:     if ($count>$max) { $count=$max } 
                    775:     &Apache::lonxml::debug("Count is $count from $max");
                    776:     return $count;
                    777: }
                    778: 
                    779: 
                    780: sub start_conceptgroup {
                    781:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    782:     $Apache::matchresponse::conceptgroup=1;
                    783:     %Apache::response::conceptgroup=();
                    784:     my $result;
                    785:     if ($target eq 'edit') {
                    786: 	$result.=&Apache::edit::tag_start($target,$token,
                    787: 					  "Concept Grouped Foils");
                    788: 	$result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
                    789: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    790:     }
                    791:     if ($target eq 'modified') {
                    792: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    793: 						     $safeeval,'concept');
                    794: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    795:     }
                    796:     return $result;
                    797: }
                    798: 
                    799: sub end_conceptgroup {
                    800:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    801:     $Apache::matchresponse::conceptgroup=0;
                    802:     my $result='';
1.28      albertel  803:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
                    804: 	$target eq 'tex' || $target eq 'analyze') {
                    805: 	&Apache::response::pick_foil_for_concept($target,
                    806: 						 ['value','text','location'],
                    807: 						 \%Apache::hint::match,
                    808: 						 $parstack,$safeeval);
1.1       albertel  809:     } elsif ($target eq 'edit') {
                    810: 	$result=&Apache::edit::end_table();
                    811:     }
                    812:     return $result;
                    813: }
                    814: 
                    815: sub insert_conceptgroup {
                    816:     my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
                    817:     return $result;
                    818: }
                    819: 
                    820: sub start_foil {
                    821:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    822:     my $result='';
1.28      albertel  823:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  824: 	&Apache::lonxml::startredirection;
1.46      albertel  825: 	if ($target eq 'analyze') {
                    826: 	    &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
                    827: 	}
1.1       albertel  828:     } elsif ($target eq 'edit') {
                    829: 	$result=&Apache::edit::tag_start($target,$token,"Foil");
                    830: 	my $level='-2';
                    831: 	if ($$tagstack[-2] eq 'conceptgroup') { $level = '-3'; }
                    832: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
                    833: 	my @names;
                    834: 	if (defined(@{ $Apache::response::itemgroup{'names'} })) {
                    835: 	    @names=@{ $Apache::response::itemgroup{'names'} };
                    836: 	}
                    837: 	$result.= &Apache::edit::select_or_text_arg('Correct Option:','value',['unused',@names],$token,'15');
                    838: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
                    839: 						 $safeeval,'-3');
                    840: 	if ($randomize ne 'no') {
                    841: 	    $result.=&Apache::edit::select_arg('Location:','location',
                    842: 					     ['random','top','bottom'],$token);
                    843: 	}
                    844: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    845:     } elsif ($target eq 'modified') {
                    846: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    847: 						     $safeeval,'value',
                    848: 						     'name','location');
                    849: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    850:     }
                    851:     return $result;
                    852: }
                    853: 
                    854: sub end_foil {
                    855:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    856:     my $text ='';
                    857:     my $result = '';
1.28      albertel  858:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  859: 	$text=&Apache::lonxml::endredirection;
                    860:     }
1.48      albertel  861: 
1.28      albertel  862:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
                    863: 	$target eq 'tex' || $target eq 'analyze') {
1.48      albertel  864: 	if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
                    865: 	    $text='\vskip 5mm $\triangleright$ '.$text;
                    866: 	}
1.1       albertel  867: 	my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
                    868: 	if ($value ne 'unused') {
                    869: 	    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    870: 	    &Apache::lonxml::debug("Got a name of :$name:");
1.49      albertel  871: 	    if (!$name) {
1.70      bisitz    872: 		&Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
1.49      albertel  873: 		$name=$Apache::lonxml::curdepth;
                    874: 	    }
1.1       albertel  875: 	    &Apache::lonxml::debug("Using a name of :$name:");
1.37      albertel  876: 	    if (defined($Apache::response::foilnames{$name})) {
1.70      bisitz    877: 		&Apache::lonxml::error(&mt("Foil name [_1] appears more than once. Foil names need to be unique.",'<b><tt>'.$name.'</tt></b>'));
1.37      albertel  878: 	    }
1.38      albertel  879: 	    $Apache::response::foilnames{$name}++;
1.37      albertel  880: 	    my $location =&Apache::lonxml::get_param('location',$parstack,
                    881: 						     $safeeval);
1.1       albertel  882: 	    if ( $Apache::matchresponse::conceptgroup
                    883: 		 && !&Apache::response::showallfoils() ) {
1.77      foxr      884: 
1.1       albertel  885: 		push @{ $Apache::response::conceptgroup{'names'} }, $name;
                    886: 		$Apache::response::conceptgroup{"$name.value"} = $value;
1.48      albertel  887: 		$Apache::response::conceptgroup{"$name.text"} = $text;
1.1       albertel  888: 		$Apache::response::conceptgroup{"$name.location"} = $location;
                    889: 	    } else {
1.77      foxr      890: 
1.1       albertel  891: 		push @{ $Apache::response::foilgroup{'names'} }, $name;
                    892: 		$Apache::response::foilgroup{"$name.value"} = $value;
1.48      albertel  893: 		$Apache::response::foilgroup{"$name.text"} = $text;
1.1       albertel  894: 		$Apache::response::foilgroup{"$name.location"} = $location;
                    895: 	    }
                    896: 	}
                    897:     }
                    898:     if ($target eq 'edit') {
                    899: 	$result.= &Apache::edit::tag_end($target,$token,'');
                    900:     }
                    901:     return $result;
                    902: }
                    903: 
                    904: sub insert_foil {
                    905:     return '
                    906: <foil name="" value="unused">
                    907: <startouttext />
                    908: <endouttext />
                    909: </foil>';
                    910: }
1.82    ! raeburn   911: 
1.1       albertel  912: 1;
                    913: __END__

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