Annotation of loncom/homework/matchresponse.pm, revision 1.84

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # Full matching style response
                      3: #
1.84    ! raeburn     4: # $Id: matchresponse.pm,v 1.83 2011/10/07 22:39:59 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') { $result=&Apache::edit::end_table(); }
1.84    ! raeburn   134:     if (ref($Apache::response::itemgroup{'names'}) eq 'ARRAY') {
        !           135:         if(!@{ $Apache::response::itemgroup{'names'} }) { return; }
        !           136:     } else {
        !           137:         return;
        !           138:     }
1.1       albertel  139:     my @names=@{ $Apache::response::itemgroup{'names'} };
                    140:     my $randomize =&Apache::lonxml::get_param('randomize',$parstack,$safeeval);
1.2       albertel  141:     if ($randomize ne 'no' ) {
1.18      albertel  142: 	@names=&Apache::response::whichorder($#names+1,$randomize,0,
                    143: 					 \%Apache::response::itemgroup);
1.1       albertel  144:     }
1.30      albertel  145:     if ($target eq 'analyze') {
                    146: 	my $partid="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
                    147: 	push (@{ $Apache::lonhomework::analyze{"$partid.items"} }, @names);
                    148:     }
1.1       albertel  149:     my %letter_name_map;
                    150:     my %name_letter_map;
                    151:     my @alphabet=('A'..'Z');
                    152:     my $i=0;
                    153:     foreach my $name (@names) {
                    154: 	$letter_name_map{$alphabet[$i]}=$name;
                    155: 	$name_letter_map{$name}=$alphabet[$i];
                    156: 	$i++;
                    157:     }
1.15      albertel  158:     $Apache::response::itemgroup{'letter_name_map'}=\%letter_name_map;
1.1       albertel  159:     $Apache::response::itemgroup{'name_letter_map'}=\%name_letter_map;
1.51      albertel  160:     my $direction=&Apache::lonxml::get_param('direction',$parstack,$safeeval);
1.1       albertel  161:     if ($target eq 'web') {
1.58      foxr      162: 	
                    163: 	my $table='<br /><table>'; # extra space to match what latex does.
1.1       albertel  164: 	my $i=0;
1.51      albertel  165: 	if ($direction eq 'horizontal') { $table .='<tr>';}
1.1       albertel  166: 	foreach my $name (@names) {
1.51      albertel  167: 	    if ($direction ne 'horizontal') { $table.='<tr>'; }
                    168: 	    $table.='<td>'.$alphabet[$i].'</td><td>'.
                    169: 		$Apache::response::itemgroup{$name.'.text'}.'</td>';
                    170: 	    if ($direction ne 'horizontal') { $table.='</tr>'; }
1.1       albertel  171: 	    $i++;
                    172: 	}
1.51      albertel  173: 	if ($direction eq 'horizontal') { $table .='</tr>';}
1.4       albertel  174: 	$table.='</table>';
                    175: 	$Apache::matchresponse::itemtable{'display'}=$table;
1.60      albertel  176: 	$Apache::lonxml::post_evaluate=0;
1.5       sakharuk  177:     } elsif ($target eq 'tex') {
1.58      foxr      178: 	my $table=' \begin{description}\setlength{\leftmargin}{2em}\setlength{\labelwidth}{1em}\setlength{\itemsep}{0.5pt plus1pt minus2pt}\setlength{\listparindent}{0em} ';
1.5       sakharuk  179: 	my $i=0;
1.82      raeburn   180:         my ($numrows,$bubbles_per_row);
                    181:         if ($Apache::lonhomework::type eq 'exam') {
                    182:             ($numrows,$bubbles_per_row) = 
                    183:                 &Apache::optionresponse::getnumrows(scalar(@names)); 
                    184:         } else {
                    185:             $numrows = 1;
                    186:         }
1.5       sakharuk  187: 	foreach my $name (@names) {
1.59      foxr      188: 	    # $Apache::response::itemgroup{$name.'.text'}=~s/\$\$/\$/g;
1.82      raeburn   189:             my $item;
                    190:             if (($numrows > 1) && ($bubbles_per_row > 0)) {
                    191:                 my $num = 1+int($i/$bubbles_per_row);
                    192:                 my $idx = int($i % $bubbles_per_row);
                    193:                 if ($idx == 0) {
                    194:                     if ($num == 1) {
                    195:                         $table .= '\item[\footnotesize {'.&mt('(first line)').'}]';
                    196:                     } else {
                    197:                         $table .= '\item[\footnotesize {'.&mt('(next line)').'}]';
                    198:                     }
                    199:                 }
                    200:                 $item = $alphabet[$idx];
                    201:             } else {
                    202:                 $item = $alphabet[$i];
                    203:             }
                    204: 	    $table.='\item['.$item.'] '.
1.58      foxr      205: 		$Apache::response::itemgroup{$name.'.text'};
1.5       sakharuk  206: 	    $i++;
                    207: 	}
1.58      foxr      208: 	$table.=' \end{description}  \strut ';
1.77      foxr      209: 	if ($Apache::lonhomework::type eq 'exam')  {$table.='\vskip -13 mm \strut ';}
1.5       sakharuk  210: 	$Apache::matchresponse::itemtable{'display'}=$table;
1.60      albertel  211: 	$Apache::lonxml::post_evaluate=0;
1.17      albertel  212:     }
1.1       albertel  213:     return $result;
                    214: }
                    215: 
                    216: sub start_item {
                    217:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    218:     my $result='';
1.30      albertel  219:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  220: 	&Apache::lonxml::startredirection;
                    221:     } elsif ($target eq 'edit') {
1.3       albertel  222: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
                    223: 						 $safeeval,'-2');
1.1       albertel  224: 	$result=&Apache::edit::tag_start($target,$token,"Item");
                    225: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
1.3       albertel  226: 	if ($randomize ne 'no') {
1.73      raeburn   227: 	    $result.='&nbsp;'x 3 .
                    228:                      &Apache::edit::select_arg('Location:','location',
1.3       albertel  229: 					       ['random','top','bottom'],
                    230: 					       $token);
                    231: 	}
                    232: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.1       albertel  233:     } elsif ($target eq 'modified') {
                    234: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.3       albertel  235: 						     $safeeval,'name',
                    236: 						     'location');
1.1       albertel  237: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    238:     }
                    239:     return $result;
                    240: }
                    241: 
                    242: sub end_item {
                    243:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    244:     my $text ='';
                    245:     my $result = '';
1.30      albertel  246:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  247: 	$text=&Apache::lonxml::endredirection;
                    248:     }
                    249:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.30      albertel  250: 	$target eq 'edit' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  251: 	my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
1.3       albertel  252: 	my $location=&Apache::lonxml::get_param('location',$parstack,
                    253: 						$safeeval);
1.1       albertel  254: 	&Apache::lonxml::debug("Got a name of :$name:");
1.55      albertel  255: 	if ($name eq "") { $name=$Apache::lonxml::curdepth; }
1.1       albertel  256: 	&Apache::lonxml::debug("Using a name of :$name:");
                    257: 	push @{ $Apache::response::itemgroup{'names'} }, $name;
                    258: 	$Apache::response::itemgroup{"$name.text"} = $text;
1.3       albertel  259: 	$Apache::response::itemgroup{"$name.location"} = $location;
1.1       albertel  260:     }
                    261:     if ($target eq 'edit') {
                    262: 	$result.= &Apache::edit::tag_end($target,$token,'');
                    263:     }
                    264:     return $result;
                    265: }
                    266: 
                    267: sub insert_item {
                    268:     return '
                    269: <item name="">
                    270: <startouttext />
                    271: <endouttext />
                    272: </item>';
                    273: }
                    274: 
                    275: %Apache::response::foilgroup=();
                    276: sub start_foilgroup {
                    277:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    278:     my $result;
                    279:     %Apache::response::foilgroup=();
                    280:     $Apache::matchresponse::conceptgroup=0;
1.81      raeburn   281:     &Apache::response::pushrandomnumber(undef,$target);
1.1       albertel  282:     if ($target eq 'edit') {
                    283: 	$result.=&Apache::edit::start_table($token)
1.73      raeburn   284: 	    .'<tr><td>'.&mt('Collection Of Foils').'</td>'
1.72      bisitz    285:             .'<td><span class="LC_nobreak">'.&mt('Delete?')
1.1       albertel  286: 	    .&Apache::edit::deletelist($target,$token)
1.72      bisitz    287: 	    .'</span></td>'
1.73      raeburn   288:             .'<td>&nbsp;'.&Apache::edit::end_row()
1.1       albertel  289:             .&Apache::edit::start_spanning_row()."\n";
                    290:     }
                    291:     return $result;
                    292: }
                    293: 
                    294: sub end_foilgroup {
                    295:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    296:     my $result;
1.67      foxr      297:     my $part        = $Apache::inputtags::part;
1.68      raeburn   298:     my $response_id = $Apache::inputtags::response[-1];
1.67      foxr      299: 
1.28      albertel  300:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  301: 	my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
                    302: 	my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
                    303: 						   $safeeval,'-2');
1.5       sakharuk  304: 	if ($target eq 'web' || $target eq 'tex') {
1.1       albertel  305: 	    $result=&displayfoils($target,$max,$randomize);
1.60      albertel  306: 	    $Apache::lonxml::post_evaluate=0;
1.1       albertel  307: 	} elsif ($target eq 'answer' ) {
                    308: 	    $result=&displayanswers($max,$randomize);
                    309: 	} elsif ( $target eq 'grade') {
                    310: 	    &grade_response($max,$randomize);
1.28      albertel  311: 	} elsif ( $target eq 'analyze') {
                    312: 	    my @shown=&whichfoils($max,$randomize);
                    313: 	    &Apache::response::analyze_store_foilgroup(\@shown,
1.29      albertel  314: 						 ['text','value','location']);
1.28      albertel  315: 	    #FIXME need to store options in some way
1.1       albertel  316: 	}
1.82      raeburn   317:         my ($numrows,$bubbles_per_row);
                    318:         if (($target eq 'tex') && ($Apache::lonhomework::type eq 'exam')) {
                    319:             my $numitems;
                    320:             if (ref($Apache::response::itemgroup{'names'}) eq 'ARRAY') {
                    321:                 $numitems = scalar(@{ $Apache::response::itemgroup{'names'} });
                    322:                 ($numrows,$bubbles_per_row) =
                    323:                     &Apache::optionresponse::getnumrows($numitems);
                    324:             }
                    325:         }
                    326:         if ($numrows < 1) {
                    327:             $numrows = 1;
                    328:         }
                    329:         my $increment = &getfoilcounts($max) * $numrows;
                    330: 	&Apache::lonxml::increment_counter($increment,"$part.$response_id");
1.66      foxr      331: 	if ($target eq 'analyze') {
                    332: 	    &Apache::lonhomework::set_bubble_lines();
                    333: 	}
                    334: 
1.1       albertel  335:     } elsif ($target eq 'edit') {
                    336: 	$result=&Apache::edit::end_table();
                    337:     }
1.41      albertel  338:     &Apache::response::poprandomnumber();
1.1       albertel  339:     return $result;
1.29      albertel  340: }
                    341: 
                    342: sub whichfoils {
                    343:     my ($max,$randomize)=@_;
                    344:     return &Apache::response::whichorder(&getfoilcounts($max),
                    345: 					 $randomize,
                    346: 					 &Apache::response::showallfoils(),
                    347: 					 \%Apache::response::foilgroup);
1.1       albertel  348: }
                    349: 
                    350: sub displayanswers {
                    351:     my ($max,$randomize,@opt)=@_;
1.84    ! raeburn   352:     if (ref($Apache::response::foilgroup{'names'}) eq 'ARRAY') {
        !           353:         if (!@{ $Apache::response::foilgroup{'names'} }) { return; }
        !           354:     } else {
        !           355:         return;
        !           356:     }
1.1       albertel  357:     my @names = @{ $Apache::response::foilgroup{'names'} };
1.18      albertel  358:     my @whichfoils = &Apache::response::whichorder(&getfoilcounts($max),
                    359: 						   $randomize,
                    360: 					  &Apache::response::showallfoils(),
                    361: 					 \%Apache::response::foilgroup);
1.1       albertel  362:     my %name_letter_map;
1.84    ! raeburn   363:     if (ref($Apache::response::itemgroup{'name_letter_map'}) eq 'HASH') {
        !           364:         if (%{$Apache::response::itemgroup{'name_letter_map'}}) {
        !           365: 	    %name_letter_map=
        !           366: 	        %{ $Apache::response::itemgroup{'name_letter_map'} };
        !           367:         }
1.1       albertel  368:     }
1.56      albertel  369:     my $result;
                    370:     if ($Apache::lonhomework::type eq 'exam') {
                    371: 	my $i=0;
                    372: 	foreach my $name (@whichfoils) {
                    373: 	    $result.=&Apache::response::answer_header('matchresponse',$i++);
                    374: 	    my $value_name=$Apache::response::foilgroup{$name.'.value'};
                    375: 	    my $letter=$name_letter_map{$value_name};
                    376: 	    $result.=&Apache::response::answer_part('matchresponse',$letter);
                    377: 	    $result.=&Apache::response::answer_footer('matchresponse');
                    378: 	}
                    379:     } else {
                    380: 	$result=&Apache::response::answer_header('matchresponse');
                    381: 	foreach my $name (@whichfoils) {
                    382: 	    my $value_name=$Apache::response::foilgroup{$name.'.value'};
                    383: 	    my $letter=$name_letter_map{$value_name};
                    384: 	    $result.=&Apache::response::answer_part('matchresponse',$letter);
                    385: 	}
                    386: 	$result.=&Apache::response::answer_footer('matchresponse');
1.1       albertel  387:     }
                    388:     return $result;
                    389: }
                    390: 
                    391: 
                    392: sub grade_response {
                    393:     my ($max,$randomize)=@_;
1.18      albertel  394:     my (@whichfoils)=&Apache::response::whichorder(&getfoilcounts($max),
                    395: 						   $randomize,
                    396: 				            &Apache::response::showallfoils(),
                    397: 				           \%Apache::response::foilgroup);
1.50      albertel  398:     if (!&Apache::response::submitted()) { return; }
1.1       albertel  399:     my %responsehash;
                    400:     my %grade;
1.81      raeburn   401:     my %answerhash;
1.33      albertel  402:     my ($temp,$right,$wrong,$ignored)=(1,0,0,0);
1.1       albertel  403:     my %letter_name_map;
1.84    ! raeburn   404:     if (ref($Apache::response::itemgroup{'letter_name_map'}) eq 'HASH') {
        !           405:         if (%{$Apache::response::itemgroup{'letter_name_map'}}) {
        !           406: 	    %letter_name_map=
        !           407: 	        %{ $Apache::response::itemgroup{'letter_name_map'} };
        !           408:         }
1.1       albertel  409:     }
1.30      albertel  410:     my @items;
1.82      raeburn   411:     my $numitems = scalar(@{ $Apache::response::itemgroup{'names'} });
                    412:     my ($numrows,$bubbles_per_row);
                    413:     if ($Apache::lonhomework::scantronmode) {
                    414:         my $numitems = scalar(@{ $Apache::response::itemgroup{'names'} });
                    415:         ($numrows,$bubbles_per_row) =
                    416:             &Apache::optionresponse::getnumrows($numitems);
                    417:     }
                    418:     if ($numrows < 1) {
                    419:         $numrows = 1;
                    420:     }
                    421:     my @alphabet=('A'..'Z');
                    422:     my %nums_from_letters;
                    423:     for (my $i=0; $i<@alphabet; $i++) {
                    424:         $nums_from_letters{$alphabet[$i]} = $i;
                    425:     }
1.1       albertel  426:     foreach my $name (@whichfoils) {
1.82      raeburn   427:         my $response;
                    428:         if ($numrows > 1) {
                    429:             my $num = $temp;
                    430:             my $totalnum;
                    431:             for (my $i=0; $i<$numrows; $i++) {
                    432:                 my $item = &Apache::response::getresponse($num,'letter');
                    433:                 if ($item =~ /^\w$/) {
                    434:                     $totalnum = $i*$bubbles_per_row + $nums_from_letters{$item};
                    435:                 }
                    436:                 $num ++;
                    437:             }
                    438:             if ($totalnum =~ /^\d+$/) {
                    439:                 $response = $alphabet[$totalnum];
                    440:             }
                    441:             $temp += $numrows;
                    442:         } else {
                    443: 	    $response = &Apache::response::getresponse($temp,'letter');
                    444:             $temp ++;
                    445:         }
1.30      albertel  446: 	push(@items,$response);
1.1       albertel  447: 	my $responsename = $letter_name_map{$response};
                    448: 	my $value=$Apache::response::foilgroup{$name.'.value'};
1.81      raeburn   449:         if ($Apache::lonhomework::type eq 'randomizetry') {
                    450:             $answerhash{$name} = $value;
                    451:         }
1.1       albertel  452: 	if ( $response =~ /[^\s]/) {
1.31      albertel  453: 	    $responsehash{$name}=$responsename;
1.33      albertel  454: 	    &Apache::lonxml::debug("submitted a $response($responsename) for $value<br />\n");
1.1       albertel  455: 	    if ($value eq $responsename) {
                    456: 		$grade{$name}='1'; $right++;
                    457: 	    } else {
                    458: 		$grade{$name}='0'; $wrong++;
                    459: 	    }
                    460: 	} else {
                    461: 	    $ignored++;
                    462: 	}
                    463:     }
                    464:     my $part=$Apache::inputtags::part;
1.83      raeburn   465:     my $nonlenient=&Apache::optionresponse::is_nonlenient($part);
1.1       albertel  466:     my $id = $Apache::inputtags::response['-1'];
                    467:     my $responsestr=&Apache::lonnet::hash2str(%responsehash);
1.30      albertel  468:     my $itemstr    =&Apache::lonnet::array2str(@items);
1.1       albertel  469:     my $gradestr   =&Apache::lonnet::hash2str(%grade);
1.30      albertel  470:     my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
1.1       albertel  471:     &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored ");
                    472:     $Apache::lonhomework::results{"resource.$part.$id.submission"}=
                    473: 	$responsestr;
1.30      albertel  474:     $Apache::lonhomework::results{"resource.$part.$id.submissionitems"}=
                    475: 	$itemstr;
1.1       albertel  476:     $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=
                    477: 	$gradestr;
1.81      raeburn   478:     if ($Apache::lonhomework::type eq 'randomizetry') {
                    479:         $Apache::lonhomework::results{"resource.$part.$id.foilorder"} = &Apache::lonnet::array2str(@whichfoils);
                    480:     }
1.79      raeburn   481:     if (($Apache::lonhomework::type eq 'survey') ||
                    482:         ($Apache::lonhomework::type eq 'surveycred') ||
                    483:         ($Apache::lonhomework::type eq 'anonsurvey') ||
                    484:         ($Apache::lonhomework::type eq 'anonsurveycred')) {
1.47      albertel  485: 	if ($ignored == 0) {
1.79      raeburn   486: 	    my $ad;
                    487:             if ($Apache::lonhomework::type eq 'anonsurvey') {
                    488:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS';
                    489:             } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
                    490:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS_CREDIT';
                    491:             } elsif ($Apache::lonhomework::type eq 'surveycred') {
                    492:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED_CREDIT';
                    493:             } else {
                    494:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
                    495:             }
1.47      albertel  496: 	    &Apache::response::handle_previous(\%previous,$ad);
                    497: 	} elsif ($wrong==0 && $right==0) {
                    498: 	} else {
                    499: 	    my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
                    500: 	    &Apache::response::handle_previous(\%previous,$ad);
                    501: 	}
1.83      raeburn   502:     } elsif ($nonlenient) {
                    503:         my $ad;
                    504:         if ($wrong==0 && $ignored==0) {
                    505:             $ad='EXACT_ANS';
                    506:         } elsif ($wrong==0 && $right==0) {
                    507:             #nothing submitted
                    508:         } else {
                    509:             if ($ignored==0) {
                    510:                 $ad='INCORRECT';
                    511:             } else {
                    512:                 $ad='MISSING_ANSWER';
                    513:             }
                    514:         }
                    515:         $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
                    516:         &Apache::response::handle_previous(\%previous,$ad);
1.34      albertel  517:     } else {
1.83      raeburn   518:         my $ad;
                    519:         if ($wrong==0 && $right==0) {
                    520:             #nothing submitted only assign a score if we
                    521:             #need to override a previous grade
                    522:             if (defined($Apache::lonhomework::history{"resource.$part.$id.awarddetail"})) {
                    523:                 $ad='ASSIGNED_SCORE';
                    524:             }
                    525:         } else {
                    526:             $ad='ASSIGNED_SCORE';
                    527:         }
                    528:         $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
                    529:         $Apache::lonhomework::results{"resource.$part.$id.awarded"}=
                    530:             $right/(scalar(@whichfoils));
                    531:         $Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
                    532:             scalar(@whichfoils);
1.34      albertel  533:     }
1.1       albertel  534: }
                    535: 
1.64      albertel  536: sub format_prior_answer {
                    537:     my ($mode,$answer,$other_data) = @_;
                    538:     my %answer      =&Apache::lonnet::str2hash($answer);
                    539:     my $foil_order  =$other_data->[0];
                    540:     my %grading     =&Apache::lonnet::str2hash($other_data->[1]);
                    541:     my @items       =&Apache::lonnet::str2array($other_data->[2]);
                    542:     my $output;
                    543:     
                    544:     foreach my $name (@{ $foil_order }) {
                    545: 	my $item=shift(@items);
                    546: 	$output .= '<tr><td>'.$item.'</td></tr>';
                    547:     }
                    548:     return if (!defined($output));
                    549: 
                    550:     $output = '<table class="LC_prior_match">'.$output.'</table>';
                    551:     return $output;
                    552: }
                    553: 
1.4       albertel  554: sub itemdisplay {
                    555:     my ($location)=@_;
                    556:     if ($location eq 'top' &&
                    557: 	!defined($Apache::matchresponse::itemtable{'location'})) {
                    558: 	return $Apache::matchresponse::itemtable{'display'};
                    559:     }
                    560:     if ($Apache::matchresponse::itemtable{'location'} eq $location) {
                    561: 	return $Apache::matchresponse::itemtable{'display'};
                    562:     }
                    563:     return undef;
                    564: }
1.64      albertel  565: 
1.1       albertel  566: sub displayfoils {
                    567:     my ($target,$max,$randomize)=@_;
1.62      foxr      568:     my ($tabsize, $lefttabsize, $righttabsize);
                    569: 
1.1       albertel  570:     my $result;
1.4       albertel  571:     my $question;
1.18      albertel  572:     my (@whichfoils)=&Apache::response::whichorder(&getfoilcounts($max),
                    573: 						   $randomize,
                    574: 				            &Apache::response::showallfoils(),
                    575: 				           \%Apache::response::foilgroup);
1.1       albertel  576:     my $part=$Apache::inputtags::part;
                    577:     my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
                    578:     my %letter_name_map;
1.84    ! raeburn   579:     if (ref($Apache::response::itemgroup{'letter_name_map'}) eq 'HASH') {
        !           580:         if (%{$Apache::response::itemgroup{'letter_name_map'}}) {
        !           581: 	    %letter_name_map=
        !           582: 	        %{ $Apache::response::itemgroup{'letter_name_map'} };
        !           583:         }
1.1       albertel  584:     }
                    585:     my %name_letter_map;
1.84    ! raeburn   586:     if (ref($Apache::response::itemgroup{'name_letter_map'}) eq 'HASH') {
        !           587:         if (%{$Apache::response::itemgroup{'name_letter_map'}}) {
        !           588: 	    %name_letter_map=
        !           589: 	        %{ $Apache::response::itemgroup{'name_letter_map'} };
        !           590:         }
1.1       albertel  591:     }
1.25      albertel  592:     if ( &Apache::response::show_answer() && ($target ne 'tex')) {
1.1       albertel  593: 	foreach my $name (@whichfoils) {
                    594: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
                    595: 	    my $value=$Apache::response::foilgroup{$name.'.value'};
                    596: 	    my $letter=$name_letter_map{$value};
1.5       sakharuk  597: 	    if ($target eq 'tex') {
                    598: 		$question.=' \\\\ '.$letter.':'.$text;
                    599: 	    } else {
1.53      albertel  600: 		$question.='<br /><b>'.$letter.':</b> '.$text;
1.5       sakharuk  601: 	    }
1.1       albertel  602: 	}
                    603:     } else {
                    604: 	my $i = 0;
1.36      albertel  605: 	my $temp=1;
1.1       albertel  606: 	my $id=$Apache::inputtags::response[-1];
                    607: 	my $part=$Apache::inputtags::part;
1.81      raeburn   608:         my ($lastresponse,$newvariation);
                    609:         if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
                    610:             ($Apache::lonhomework::type eq 'randomizetry')) &&
                    611:             ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
                    612:             if ($env{'form.'.$part.'.rndseed'} ne
                    613:                 $Apache::lonhomework::history{"resource.$part.rndseed"}) {
                    614:                 $newvariation = 1;
                    615:             }
                    616:         }
                    617:         unless ((($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   618: 	    $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
                    619:         }
1.9       sakharuk  620: 	my %lastresponse=&Apache::lonnet::str2hash($lastresponse);    
                    621: 	my @alphabet=('A'..'Z');
1.15      albertel  622: 	my @used_letters=sort(keys(%letter_name_map));
1.20      sakharuk  623: 	my $internal_counter=$Apache::lonxml::counter;
1.82      raeburn   624:         my ($numrows,$bubbles_per_row);
                    625:         if (($target eq 'tex') && ($Apache::lonhomework::type eq 'exam')) {
                    626:             ($numrows,$bubbles_per_row) = 
                    627:                 &Apache::optionresponse::getnumrows(scalar(@used_letters));
                    628:         } else {
                    629:             $numrows = 1;
                    630:         }
1.1       albertel  631: 	foreach my $name (@whichfoils) {
                    632: 	    my $lastopt=$lastresponse{$name};
                    633: 	    my $last_letter=$name_letter_map{$lastopt};
1.5       sakharuk  634: 	    my $optionlist = '';
1.7       sakharuk  635: 	    if ($target ne 'tex') {
                    636: 		$optionlist="<option></option>\n";
                    637: 	    } else {
                    638: 		if ($Apache::lonhomework::type ne 'exam') {
1.76      onken     639:                     if($env{'form.pdfFormFields'} eq 'yes'
                    640:                        && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER') {
1.75      raeburn   641:                         my $fieldname = $env{'request.symb'} . '&part_'. $Apache::inputtags::part .'&matchresponse'. '&HWVAL_' . $Apache::inputtags::response['-1'] . ':' . $temp . '&submit_' . $Apache::inputtags::part . '&';
                    642:                         $optionlist = &Apache::lonxml::print_pdf_start_combobox($fieldname);
                    643:                     } else {
1.77      foxr      644: 
1.75      raeburn   645:                         $optionlist='\framebox[10 mm][s]{\tiny\strut}';
                    646:                     }
1.74      raeburn   647:                 }
1.7       sakharuk  648: 	    }
1.1       albertel  649: 	    my $option;
1.15      albertel  650: 	    foreach $option (@used_letters) {
1.1       albertel  651: 		if ($option eq $last_letter) {
1.71      onken     652: 		    if ($target ne 'tex') {
1.81      raeburn   653:                         $optionlist.="<option selected=\"selected\">$option</option>\n";
1.76      onken     654:                     } elsif ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
1.80      onken     655:                              && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER'
                    656:                              && $Apache::lonhomework::type ne 'exam') {
1.75      raeburn   657:                         $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
1.71      onken     658:                     }
1.1       albertel  659: 		} else {
1.71      onken     660: 		    if ($target ne 'tex') {
                    661:                         $optionlist.="<option>$option</option>\n";
1.76      onken     662:                     } elsif ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
1.80      onken     663:                              && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER'
                    664:                              && $Apache::lonhomework::type ne 'exam') {
1.75      raeburn   665:                         $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
1.71      onken     666:                     }
1.1       albertel  667: 		}
                    668: 	    }
1.19      sakharuk  669: 	    if ($target ne 'tex' && $Apache::lonhomework::type ne 'exam') {
1.61      albertel  670: 	        $optionlist='<select onchange="javascript:setSubmittedPart(\''.
                    671: 		  $part.'\');" name="HWVAL_'.
1.5       sakharuk  672: 		    $Apache::inputtags::response[-1].':'.$temp.'">'.
                    673: 		        $optionlist."</select>\n";
                    674: 	    }
1.1       albertel  675: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
1.62      foxr      676: 	    #
                    677:             #  Factor out the tex computations of the left/right 1/2 minipage
                    678: 	    #  widths for left or right positioning.  This allows us
                    679: 	    #  to, if necessary constrain the bubble widths:
                    680: 	    #
                    681: 	    if ($target eq 'tex'   &&
                    682: 		(&itemdisplay('left') || &itemdisplay('right'))) {
                    683: 		$tabsize=&Apache::londefdef::recalc($env{'form.textwidth'});
                    684: 		($lefttabsize,$righttabsize)=(0,0);
                    685: 		if ($Apache::matchresponse::TeXitemgroupwidth ne '') {
                    686: 		    $Apache::matchresponse::TeXitemgroupwidth=~/(\d*.?\d*)/;
                    687: 		    $lefttabsize=$tabsize*$1/100;	
                    688: 		    $righttabsize=0.95*($tabsize-$lefttabsize);
                    689: 		} else {
                    690: 		    $tabsize=~/(\d+\.?\d*)/;
                    691: 		    $lefttabsize=$1/2.1;
                    692: 		    $righttabsize=0.95*($1-$lefttabsize);
                    693: 		}
                    694: 	    }
1.5       sakharuk  695: 	    if ($target ne 'tex') {
1.19      sakharuk  696: 		if ($Apache::lonhomework::type ne 'exam') {
1.45      albertel  697: 		    $question.="<br />\n".$optionlist.$text;
1.19      sakharuk  698: 		} else {
1.45      albertel  699: 		    $question.="<br />\n".$text;
1.19      sakharuk  700: 		}
1.6       sakharuk  701: 		if ($Apache::lonhomework::type eq 'exam') {
1.42      albertel  702: 		    my @blank;
                    703: 		    $question.=&Apache::optionresponse::webbubbles(\@used_letters,\@blank,$temp,$last_letter);
1.6       sakharuk  704: 		}
                    705: 	    } else {		
1.62      foxr      706: 		# Note that if left or right positioned, we must
                    707: 		# confine the bubbles to righttabsize:
                    708: 		#
1.80      onken     709: 		if ($Apache::lonhomework::type eq 'exam') {
1.6       sakharuk  710: 		    $question.=' '.$optionlist.$text."\n";
1.13      sakharuk  711: 		    my @emptyItems = ();
1.16      albertel  712: 		    for (my $i=0;$i<=$#used_letters;$i++) {push @emptyItems, ' ';}
1.62      foxr      713: 		    $question.='\vskip -1 mm\noindent\begin{list}{}{\setlength{\listparindent}{0mm}\setlength{\leftmargin}{2mm}}'
1.82      raeburn   714: 			.'\item \hskip -3mm ';
                    715:                     if ($numrows == 1) {
                    716:                         $question .= '\textbf{'.$internal_counter.'}';
                    717:                     } else {
                    718:                         my $linetext;
                    719:                         for (my $i=0; $i<$numrows; $i++) {
                    720:                             $linetext .= $internal_counter+$i.', ';
                    721:                         }
                    722:                         $linetext =~ s/,\s$//;
                    723:                         $question .= '\small {\textbf{'.$linetext.'}} '.
                    724:                                      '\hskip 2 mm {\footnotesize '.
                    725:                                      &mt('(Bubble once in [_1] lines)',$numrows).
                    726:                                      '} \vskip 3 mm';
                    727:                     }
                    728:                     my $max_width;
1.62      foxr      729: 		    if (&itemdisplay('left') || &itemdisplay('right')) {
1.82      raeburn   730:                         $max_width = $righttabsize;
                    731:                     }
                    732: 		    $question .= '\vskip -4 mm' . &Apache::optionresponse::bubbles(\@used_letters,\@emptyItems,'',$max_width,$numrows,$bubbles_per_row,$internal_counter);
1.62      foxr      733: 		    $question .= '\end{list} \vskip -8 mm \strut ';
1.82      raeburn   734: 		    $internal_counter += $numrows;
1.6       sakharuk  735: 	        } else {
1.76      onken     736:                     if($env{'form.pdfFormFields'} eq 'yes' 
                    737:                             && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER') {
1.75      raeburn   738:                         $question .= " $optionlist ". &Apache::lonxml::print_pdf_end_combobox($text).'\strut';
                    739:                     } else {
                    740:                         $question.=' '.$optionlist.$text.'\strut\\\\\strut '."\n";
                    741:                     }
1.6       sakharuk  742: 		}
1.5       sakharuk  743:             } 
1.1       albertel  744: 	    $temp++;
                    745: 	}
1.4       albertel  746:     }
                    747:     if ($result=&itemdisplay('top')) {
                    748: 	$result.=$question;
                    749:     } elsif ($result=&itemdisplay('bottom')) {
                    750: 	$result=$question.$result;
                    751:     } elsif ($result=&itemdisplay('right')) {
1.32      sakharuk  752: 	if ($target ne 'tex') {
1.45      albertel  753: 	    #remove the first <br />
                    754: 	    $question=~s|<br />||;
                    755: 	    $result='<table><tr><td valign="top">'.$question.
                    756: 		'</td><td valign="top">'.$result.'</td></tr></table>';
1.32      sakharuk  757: 	} else {
1.43      sakharuk  758: 	    $lefttabsize.=' mm ';
                    759: 	    $righttabsize.=' mm ';
                    760: 	    $result='\setlength{\tabcolsep}{1 mm}\begin{tabular}{p{'.$righttabsize.'}p{'.$lefttabsize.'}}\begin{minipage}{'.$righttabsize.'}'.$question.'\end{minipage}&\begin{minipage}{'.$lefttabsize.'}'.$result.'\end{minipage}\end{tabular}';
1.32      sakharuk  761: 	}
1.4       albertel  762:     } elsif ($result=&itemdisplay('left')) {
1.32      sakharuk  763: 	if ($target ne 'tex') {
1.45      albertel  764: 	    #remove the first <br />
                    765: 	    $question=~s|<br />||;
                    766: 	    $result='<table><tr><td valign="top">'.$result.
                    767: 		'</td><td valign="top">'.$question.'</td></tr></table>';
1.32      sakharuk  768: 	} else {
1.43      sakharuk  769: 	    $lefttabsize.=' mm ';
                    770: 	    $righttabsize.=' mm ';
                    771: 	    $result='\setlength{\tabcolsep}{1 mm}\begin{tabular}{p{'.$lefttabsize.'}p{'.$righttabsize.'}}\begin{minipage}{'.$lefttabsize.'}'.$result.'\end{minipage}&\begin{minipage}{'.$righttabsize.'}'.$question.'\end{minipage}\end{tabular}';
1.32      sakharuk  772: 	}
1.1       albertel  773:     }
1.64      albertel  774:     if ($target eq 'web') {
1.81      raeburn   775:         my $questiontype;
                    776:         if ($Apache::lonhomework::type eq 'randomizetry') {
                    777:             $questiontype = $Apache::lonhomework::type;
                    778:         }
1.64      albertel  779: 	&Apache::response::setup_prior_tries_hash(\&format_prior_answer,
                    780: 						  [\@whichfoils,
                    781: 						   'submissiongrading',
1.81      raeburn   782: 						   'submissionitems'],
                    783:                                                   $questiontype);
1.64      albertel  784:     }
1.5       sakharuk  785:     if ($target ne 'tex') {$result.="<br />";} else {$result.=' \\\\ ';}
1.1       albertel  786:     return $result;
                    787: }
                    788: 
                    789: sub getfoilcounts {
                    790:     my ($max)=@_;
                    791:     # +1 since instructors will count from 1
                    792:     my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
                    793:     if (&Apache::response::showallfoils()) { $max=$count; }
                    794:     if ($count>$max) { $count=$max } 
                    795:     &Apache::lonxml::debug("Count is $count from $max");
                    796:     return $count;
                    797: }
                    798: 
                    799: 
                    800: sub start_conceptgroup {
                    801:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    802:     $Apache::matchresponse::conceptgroup=1;
                    803:     %Apache::response::conceptgroup=();
                    804:     my $result;
                    805:     if ($target eq 'edit') {
                    806: 	$result.=&Apache::edit::tag_start($target,$token,
                    807: 					  "Concept Grouped Foils");
                    808: 	$result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
                    809: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    810:     }
                    811:     if ($target eq 'modified') {
                    812: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    813: 						     $safeeval,'concept');
                    814: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    815:     }
                    816:     return $result;
                    817: }
                    818: 
                    819: sub end_conceptgroup {
                    820:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    821:     $Apache::matchresponse::conceptgroup=0;
                    822:     my $result='';
1.28      albertel  823:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
                    824: 	$target eq 'tex' || $target eq 'analyze') {
                    825: 	&Apache::response::pick_foil_for_concept($target,
                    826: 						 ['value','text','location'],
                    827: 						 \%Apache::hint::match,
                    828: 						 $parstack,$safeeval);
1.1       albertel  829:     } elsif ($target eq 'edit') {
                    830: 	$result=&Apache::edit::end_table();
                    831:     }
                    832:     return $result;
                    833: }
                    834: 
                    835: sub insert_conceptgroup {
                    836:     my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
                    837:     return $result;
                    838: }
                    839: 
                    840: sub start_foil {
                    841:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    842:     my $result='';
1.28      albertel  843:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  844: 	&Apache::lonxml::startredirection;
1.46      albertel  845: 	if ($target eq 'analyze') {
                    846: 	    &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
                    847: 	}
1.1       albertel  848:     } elsif ($target eq 'edit') {
                    849: 	$result=&Apache::edit::tag_start($target,$token,"Foil");
                    850: 	my $level='-2';
                    851: 	if ($$tagstack[-2] eq 'conceptgroup') { $level = '-3'; }
                    852: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
                    853: 	my @names;
1.84    ! raeburn   854: 	if (ref($Apache::response::itemgroup{'names'}) eq 'ARRAY') {
        !           855:             if (@{ $Apache::response::itemgroup{'names'} }) {
        !           856: 	        @names=@{ $Apache::response::itemgroup{'names'} };
        !           857:             }
1.1       albertel  858: 	}
                    859: 	$result.= &Apache::edit::select_or_text_arg('Correct Option:','value',['unused',@names],$token,'15');
                    860: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
                    861: 						 $safeeval,'-3');
                    862: 	if ($randomize ne 'no') {
                    863: 	    $result.=&Apache::edit::select_arg('Location:','location',
                    864: 					     ['random','top','bottom'],$token);
                    865: 	}
                    866: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    867:     } elsif ($target eq 'modified') {
                    868: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    869: 						     $safeeval,'value',
                    870: 						     'name','location');
                    871: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    872:     }
                    873:     return $result;
                    874: }
                    875: 
                    876: sub end_foil {
                    877:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    878:     my $text ='';
                    879:     my $result = '';
1.28      albertel  880:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.1       albertel  881: 	$text=&Apache::lonxml::endredirection;
                    882:     }
1.48      albertel  883: 
1.28      albertel  884:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
                    885: 	$target eq 'tex' || $target eq 'analyze') {
1.48      albertel  886: 	if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
                    887: 	    $text='\vskip 5mm $\triangleright$ '.$text;
                    888: 	}
1.1       albertel  889: 	my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
                    890: 	if ($value ne 'unused') {
                    891: 	    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    892: 	    &Apache::lonxml::debug("Got a name of :$name:");
1.49      albertel  893: 	    if (!$name) {
1.70      bisitz    894: 		&Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
1.49      albertel  895: 		$name=$Apache::lonxml::curdepth;
                    896: 	    }
1.1       albertel  897: 	    &Apache::lonxml::debug("Using a name of :$name:");
1.37      albertel  898: 	    if (defined($Apache::response::foilnames{$name})) {
1.70      bisitz    899: 		&Apache::lonxml::error(&mt("Foil name [_1] appears more than once. Foil names need to be unique.",'<b><tt>'.$name.'</tt></b>'));
1.37      albertel  900: 	    }
1.38      albertel  901: 	    $Apache::response::foilnames{$name}++;
1.37      albertel  902: 	    my $location =&Apache::lonxml::get_param('location',$parstack,
                    903: 						     $safeeval);
1.1       albertel  904: 	    if ( $Apache::matchresponse::conceptgroup
                    905: 		 && !&Apache::response::showallfoils() ) {
1.77      foxr      906: 
1.1       albertel  907: 		push @{ $Apache::response::conceptgroup{'names'} }, $name;
                    908: 		$Apache::response::conceptgroup{"$name.value"} = $value;
1.48      albertel  909: 		$Apache::response::conceptgroup{"$name.text"} = $text;
1.1       albertel  910: 		$Apache::response::conceptgroup{"$name.location"} = $location;
                    911: 	    } else {
1.77      foxr      912: 
1.1       albertel  913: 		push @{ $Apache::response::foilgroup{'names'} }, $name;
                    914: 		$Apache::response::foilgroup{"$name.value"} = $value;
1.48      albertel  915: 		$Apache::response::foilgroup{"$name.text"} = $text;
1.1       albertel  916: 		$Apache::response::foilgroup{"$name.location"} = $location;
                    917: 	    }
                    918: 	}
                    919:     }
                    920:     if ($target eq 'edit') {
                    921: 	$result.= &Apache::edit::tag_end($target,$token,'');
                    922:     }
                    923:     return $result;
                    924: }
                    925: 
                    926: sub insert_foil {
                    927:     return '
                    928: <foil name="" value="unused">
                    929: <startouttext />
                    930: <endouttext />
                    931: </foil>';
                    932: }
1.82      raeburn   933: 
1.1       albertel  934: 1;
                    935: __END__

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