Annotation of loncom/homework/randomlabel.pm, revision 1.33

1.1       tsai        1: # The LearningOnline Network with CAPA
                      2: # random labelling tool
1.8       albertel    3: #
1.33    ! sakharuk    4: # $Id: randomlabel.pm,v 1.32 2002/07/30 16:12:38 sakharuk Exp $
1.8       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: #
1.3       tsai       28: # 7/20/2001 Isaac Tsai, initial syntax
                     29: # 8/10/2001 Isaac Tsai, 
                     30: # 8/30/2001 Isaac Tsai, 
1.1       tsai       31: # SYNTAX:
1.4       albertel   32: # <randomlabel bgimg="URL" width="12" height="45" texwidth="50">
                     33: #    <labelgroup name="GroupOne" type="image">
                     34: #      <location x="123" y="456" />
                     35: #      <location x="321" y="654" />
                     36: #      <location x="213" y="546" />
                     37: #      <label description="TEXT-1">IMG-URL</label>
                     38: #      <label description="TEXT-2">IMG-URL</label>
                     39: #      <label description="TEXT-3">IMG-URL</label>
1.1       tsai       40: #    </labelgroup>
1.4       albertel   41: #    <labelgroup name="GroupTwo" type="text">
                     42: #      <location x="12" y="45" />
                     43: #      <location x="32" y="65" />
                     44: #      <location x="21" y="54" />
1.3       tsai       45: #      <label>TEXT-1</label>
                     46: #      <label>TEXT-2</label>
                     47: #      <label>TEXT-3</label>
1.1       tsai       48: #    </labelgroup>
                     49: #   </randomlabel>
                     50: #  ===========================================
1.3       tsai       51: #  side effect:
                     52: #    location (123,456): $GroupOne[0] = 2  # images give out indexes
                     53: #             (321,654): $GroupOne[1] = 1
                     54: #             (213,546): $GroupOne[2] = 0
                     55: #    location (12,45)  : $GroupTwo[0] = "TEXT-3"
                     56: #             (32,65)  : $GroupTwo[1] = "TEXT-1"
                     57: #             (21,54)  : $GroupTwo[2] = "TEXT-2"
1.1       tsai       58: #  ===========================================
                     59: package Apache::randomlabel;
1.24      sakharuk   60: use Apache::lonnet;
1.1       tsai       61: use strict;
1.13      sakharuk   62: use Apache::edit;
1.1       tsai       63: 
1.13      sakharuk   64: BEGIN {
1.1       tsai       65:   &Apache::lonxml::register('Apache::randomlabel',('randomlabel','labelgroup','location','label'));
                     66: }
                     67: 
1.23      matthew    68: sub check_int {
                     69:     # utility function to do error checking on a integer.
                     70:     my ($num,$default) = @_;
                     71:     $default = 100 if (! defined($default));
                     72:     $num =~ s/\s+//g;  # We dont need no stinkin white space!
                     73:     # If it is a real, just grab the integer part.
                     74:     ($num,undef) = split (/\./,$num) if ($num =~ /\./); 
                     75:     # set to default if what we have left doesn't match anything...
                     76:     $num = $default unless ($num =~/^\d+$/);
                     77:     return $num;
                     78: }
                     79: 
1.1       tsai       80: sub start_randomlabel {
                     81:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     82:   my $result='';
1.23      matthew    83:   push (@Apache::lonxml::extlinks, '/res/adm/includes/GLabel.class');
1.20      albertel   84:   push (@Apache::lonxml::namespace,'randomlabel');
1.1       tsai       85:   my $bgimg= &Apache::lonxml::get_param('bgimg',$parstack,$safeeval);
1.6       albertel   86:   if ( $bgimg !~ /^http:/ ) {
1.23      matthew    87:     push (@Apache::lonxml::extlinks,$bgimg);
1.6       albertel   88:     $bgimg=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$bgimg);
1.7       albertel   89:     if ($bgimg =~ /$Apache::lonnet::perlvar{'lonDocRoot'}/) {
                     90:       $bgimg=~s/$Apache::lonnet::perlvar{'lonDocRoot'}//;
                     91:     } elsif ($bgimg =~ m:^/home/.*/public_html:) {
                     92:       $bgimg =~ s:^/home/(.*)/public_html:/~$1:;
                     93:     }
1.31      sakharuk   94:     $bgimg='http://'.$ENV{'SERVER_NAME'}.$bgimg;
1.6       albertel   95:   }
1.1       tsai       96:   my $code = &Apache::lonxml::get_param('code',$parstack,$safeeval);
                     97:   my $codebase = &Apache::lonxml::get_param('codebase',$parstack,$safeeval);
1.23      matthew    98:   my $w= &check_int(&Apache::lonxml::get_param('width',$parstack,$safeeval));
                     99:   my $h= &check_int(&Apache::lonxml::get_param('height',$parstack,$safeeval));
1.4       albertel  100:   my $texwidth= &Apache::lonxml::get_param('texwidth',$parstack,$safeeval);
                    101:   if (!$code) { $code='GLabel.class'; }
                    102:   if (!$codebase) { $codebase='/res/adm/includes/'; }
1.3       tsai      103:   $Apache::randomlabel::tlabel_cnt=0;
                    104:   $Apache::randomlabel::ilabel_cnt=0;
                    105:   if ($target eq 'web') {
1.26      albertel  106:     $result.="<applet code=\"$code\" codebase=\"$codebase\" width=\"$w\" height=\"$h\">\n";
                    107:     $result.="<param name=\"bgimg\" value=\"$bgimg\">\n";
1.4       albertel  108:   } elsif ($target eq 'tex') {
1.12      sakharuk  109:     $bgimg=~s/(.gif|.jpg)$/.eps/;
1.24      sakharuk  110:     $bgimg= &Apache::lonnet::filelocation($bgimg);
1.31      sakharuk  111:     if (not $ENV{'request.role'}=~/^au\./) {
                    112: 	$bgimg=~s/http:\/[^\/]*/\/home\/httpd\/html/;
                    113:     } else {
                    114: 	$bgimg=~s/http:\/[^\/]*\/~([^\/]+)/\/home\/$1\/public_html/;
                    115: 
                    116:     }
1.24      sakharuk  117:     $bgimg=~s/\/$//;
1.31      sakharuk  118:     if ($texwidth==90) {
1.33    ! sakharuk  119: 	$result.='\vspace*{2mm} \parbox{\textwidth}{  \noindent \epsfxsize='.$texwidth.' mm \epsffile{'.
1.31      sakharuk  120: 	    $bgimg.'}\setlength{\unitlength}{1mm}  \begin{picture}('.$texwidth.','.$texwidth*$h/$w.')';
                    121:     } else {
1.33    ! sakharuk  122: 	$result.='\vspace*{2mm} \parbox{\textwidth}{  \noindent \epsfxsize='.$texwidth.' mm \epsffile{'.
1.31      sakharuk  123: 	    $bgimg.'}\setlength{\unitlength}{1mm}  \begin{picture}('.$texwidth.','.$texwidth*$h/$w.')('.(100-$texwidth).','.(100-$texwidth)*$h/$w.')';
                    124:     }
1.3       tsai      125:   } elsif ($target eq 'edit') {
1.4       albertel  126:     $result.=&Apache::edit::tag_start($target,$token);
1.18      matthew   127:     $result.=&Apache::edit::text_arg('Image:','bgimg',$token,75).' ';
                    128:     $result.=&Apache::edit::browse('bgimg').' ';
                    129:     $result.=&Apache::edit::search('bgimg').'<br />'.
1.15      matthew   130:         &Apache::edit::text_arg('Width(pixel):' ,'width'   ,$token,6).
                    131:         &Apache::edit::text_arg('Height(pixel):','height'  ,$token,6).
                    132:         &Apache::edit::text_arg('TeXWidth(mm):' ,'texwidth',$token,6).
                    133:         &Apache::edit::end_row().&Apache::edit::start_spanning_row();     
1.3       tsai      134:   } elsif ($target eq 'modified') {
1.4       albertel  135:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
                    136: 						 'bgimg','width','height',
                    137: 						 'texwidth');
                    138:     if ($constructtag) {
                    139:       $result = &Apache::edit::rebuild_tag($token);
                    140:       $result.=&Apache::edit::handle_insert();
                    141:     }
1.1       tsai      142:   }
                    143:   return $result;
                    144: }
                    145: 
                    146: sub end_randomlabel {
1.3       tsai      147:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    148:   my $result='';
                    149:   my $count;
1.21      albertel  150:   pop @Apache::lonxml::namespace;
1.3       tsai      151:   if ($target eq 'web') {
1.4       albertel  152:     $count = $Apache::randomlabel::tlabel_cnt;
1.26      albertel  153:     if( $count != 0) { $result.= "<param name=\"COUNT\" value=\"$count\">\n"; }
1.4       albertel  154:     $count = $Apache::randomlabel::ilabel_cnt;
1.26      albertel  155:     if( $count != 0) { $result.= "<param name=\"ICOUNT\" value=\"$count\">\n"; }
                    156:     $result .= "</applet>\n<BR />";
1.4       albertel  157:   } elsif ($target eq 'tex') {
1.33    ! sakharuk  158:       $result='\end{picture}\\\\}';
1.31      sakharuk  159:       if (@$parstack[-1]=~/\$texwidth\s*=\s*?"90/) { #"
                    160: 	  @$parstack[-1]=~/\$height\s*=\s*?"(.+)?"/;
1.32      sakharuk  161: 	  my $howtoskipback = $1/48;
1.31      sakharuk  162: 	  $result.=' \vskip -'.$howtoskipback.' cm ';
                    163:       }
1.4       albertel  164:   } elsif ($target eq 'edit') {
                    165:     $result.=&Apache::edit::end_table;
1.3       tsai      166:   }
                    167:   return $result;
1.1       tsai      168: }
                    169: 
                    170: sub start_labelgroup {
                    171:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    172:   my $result='';
                    173:   my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    174:   my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
1.2       tsai      175:   $type =~tr/A-Z/a-z/;
1.5       albertel  176:   if ($target eq 'web' || $target eq 'tex' || 
                    177:       $target eq 'grade' || $target eq 'answer') {
1.4       albertel  178:     $Apache::randomlabel::groupname=$name;
                    179:     $Apache::randomlabel::type=$type;
                    180:     @Apache::randomlabel::xcoord = ();
                    181:     @Apache::randomlabel::ycoord = ();
1.5       albertel  182:     @Apache::randomlabel::value = ();
1.4       albertel  183:     @Apache::randomlabel::label_arr  = ();
1.26      albertel  184:     @Apache::randomlabel::decription  = ();
1.4       albertel  185:   } elsif ($target eq 'edit') {
                    186:     $result.=&Apache::edit::tag_start($target,$token);
                    187:     $result.=&Apache::edit::text_arg('Name:','name',$token).
                    188:       &Apache::edit::select_arg('Type:','type',['text','image'],$token).
1.13      sakharuk  189: 	  &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.4       albertel  190:   } elsif ($target eq 'modified') {
                    191:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
                    192: 						 'name','type');
                    193:     if ($constructtag) {
                    194:       $result = &Apache::edit::rebuild_tag($token);
                    195:       $result.=&Apache::edit::handle_insert();
                    196:     }
                    197:   }
1.3       tsai      198:   return $result;
1.1       tsai      199: }
                    200: 
1.5       albertel  201: sub add_vars {
1.28      albertel  202:   my ($name,$order,$label,$labelorder,$value,$image,$safeeval) = @_;
1.5       albertel  203:   my $code = '${'.$name."}{'".($order+1)."'}='".$label."';";
                    204:   my $out=Apache::run::run($code,$safeeval);
                    205:   if ($value) {
                    206:     $code = '${'.$name."}{'value_".($order+1)."'}='".$value."';";
                    207:     $out=Apache::run::run($code,$safeeval);
                    208:     $code = '${'.$name."}{'labelvalue_".($labelorder+1)."'}='".$value."';";
                    209:     $out=Apache::run::run($code,$safeeval);
1.4       albertel  210:   }
1.28      albertel  211:   if ($image) {
                    212:       my $code = '${'.$name."}{'image_".($order+1)."'}='".$image."';";
                    213:       my $out=Apache::run::run($code,$safeeval);
                    214:   }
1.5       albertel  215:   $code = '${'.$name."}{'numlocations'}='".($order+1)."';";
                    216:   $out=Apache::run::run($code,$safeeval);
1.4       albertel  217: }
1.5       albertel  218: 
1.1       tsai      219: # begin to assign labels to locations
                    220: sub end_labelgroup {
                    221:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    222:   my $gname = $Apache::randomlabel::groupname;
1.2       tsai      223:   my $type  = $Apache::randomlabel::type;
1.4       albertel  224:   my $result='';
1.5       albertel  225:   if ($target eq 'web' || $target eq 'answer' || $target eq 'grade') {
1.4       albertel  226:     my @idx_arr = (0 .. $#Apache::randomlabel::label_arr);
                    227:     &Apache::structuretags::shuffle(\@idx_arr);
                    228:     for(0 .. $#Apache::randomlabel::label_arr) {
                    229:       my $str;
                    230:       my $xstr;
                    231:       my $ystr;
                    232:       my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$_] ]";
1.5       albertel  233:       my $x = $Apache::randomlabel::xcoord[$_];
                    234:       my $y = $Apache::randomlabel::ycoord[$_];
                    235:       my $value = $Apache::randomlabel::value[$_];
1.4       albertel  236:       if( $type eq 'text') {
1.28      albertel  237: 	&add_vars($gname,$_,$label,$idx_arr[$_],$value,'',$safeeval);
1.4       albertel  238: 	$str = 'LB'.$Apache::randomlabel::tlabel_cnt;
                    239: 	$xstr = 'X'.$Apache::randomlabel::tlabel_cnt;
                    240: 	$ystr = 'Y'.$Apache::randomlabel::tlabel_cnt;
                    241: 	$Apache::randomlabel::tlabel_cnt += 1;
                    242:       } elsif ( $type eq 'image') {
1.28      albertel  243: 	&add_vars($gname,$_,
                    244: 		  $Apache::randomlabel::description[$idx_arr[$_]],
                    245: 		  $idx_arr[$_],$value,$label,$safeeval);
1.26      albertel  246: 	$str = 'IMG'.$Apache::randomlabel::ilabel_cnt;
                    247: 	$xstr = 'IX'.$Apache::randomlabel::ilabel_cnt;
                    248: 	$ystr = 'IY'.$Apache::randomlabel::ilabel_cnt;
1.4       albertel  249: 	$Apache::randomlabel::ilabel_cnt += 1;
                    250:       } else {
                    251: 	&Apache::lonxml::error('Unknown type of label :'.$type.':');
                    252:       }
1.5       albertel  253:       if ($target eq 'web') {
                    254: 	$result .= '<param name="' . $str  . '" value="'.$label.'">';
                    255: 	$result .= '<param name="' . $xstr . '" value="'.$x.'">';
1.26      albertel  256: 	$result .= '<param name="' . $ystr . '" value="'.$y.'">'."\n";
1.5       albertel  257:       }
1.3       tsai      258:     }
1.4       albertel  259:   } elsif ($target eq 'tex') {
                    260:     my $WX1=0; #  Web x-coord. of upper left corner (ULC)
                    261:     my $WY1=0; #  Web y-coord. of (ULC)
                    262:     my $wwidth=&Apache::lonxml::get_param('width',$parstack,$safeeval,-2);
                    263:     my $wheight=&Apache::lonxml::get_param('height',$parstack,$safeeval,-2);
                    264:     my $texwidth=&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,-2);
                    265:     my $TX1=0;
                    266:     my $TY1=$texwidth*($wheight/$wwidth);
                    267:     my $TX2=$texwidth;
                    268:     my $TY2=0;
                    269: 
                    270: 
                    271:     my $slopex=($wwidth-$WX1)/($TX2-$TX1);
                    272:     my $slopey=($wheight-$WY1)/($TY2-($TY1-1.0));
                    273:     my $cstx=$wwidth-$slopex*($TX2);
                    274:     my $csty=$wheight-$slopey*($TY2);
                    275: 
                    276:     my @idx_arr = (0 .. $#Apache::randomlabel::label_arr);
                    277:     &Apache::structuretags::shuffle(\@idx_arr);
                    278: 
                    279:     &Apache::lonxml::debug("Array is:".$#Apache::randomlabel::label_arr.":");
                    280:     for(my $i=0;$i <= $#Apache::randomlabel::label_arr; $i++) {
                    281:       my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$i] ]";
                    282:       my $x = $Apache::randomlabel::xcoord[$i];
                    283:       my $y = $Apache::randomlabel::ycoord[$i];
1.5       albertel  284:       my $value = $Apache::randomlabel::value[$i];
1.31      sakharuk  285:       #x latex coordinate
                    286:       my $tcX=($x-5)*($texwidth/$wwidth);
                    287:       #y latex coordinate
1.19      albertel  288:       my $ratio=($wwidth > 0 ? $wheight/$wwidth : 1 );
                    289:       my $tcY=$TY1-$y*($TY1/$wheight)+$texwidth*$ratio;
1.4       albertel  290:       $tcX=sprintf('%.2f',$tcX);
                    291:       $tcY=sprintf('%.2f',$tcY);
                    292:       $result.='\put('.$tcX.','.$tcY.'){\normalsize \bf '.$label.'}'."\n";
                    293:       if( $type eq 'text') {
1.28      albertel  294: 	&add_vars($gname,$i,$label,$idx_arr[$i],$value,'',$safeeval);
1.4       albertel  295:       } elsif ( $type eq 'image') {
1.28      albertel  296: 	&add_vars($gname,$i,
                    297: 		  $Apache::randomlabel::description[$idx_arr[$i]],
                    298: 		  $idx_arr[$i],$value,$label,$safeeval);
1.4       albertel  299:       } else {
                    300: 	&Apache::lonxml::error('Unknown type of label :'.$type.':');
                    301:       }
                    302:     }
                    303:   } elsif ($target eq 'edit') {
                    304:     $result.=&Apache::edit::end_table;
1.1       tsai      305:   }
1.4       albertel  306:   return $result;
1.1       tsai      307: }
                    308: 
1.5       albertel  309: # <location x="123" y="456" value="some value"/>
1.1       tsai      310: sub start_location {
                    311:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.23      matthew   312:   my $x= &check_int(&Apache::lonxml::get_param('x',$parstack,$safeeval),50);
                    313:   my $y= &check_int(&Apache::lonxml::get_param('y',$parstack,$safeeval),50);
1.5       albertel  314:   my $value= &Apache::lonxml::get_param('value',$parstack,$safeeval);
1.3       tsai      315:   my $result='';
1.1       tsai      316:   push(@Apache::randomlabel::xcoord,$x);
1.4       albertel  317:   push(@Apache::randomlabel::ycoord,$y);
1.5       albertel  318:   push(@Apache::randomlabel::value,$value);
1.4       albertel  319:   if ($target eq 'edit') {
                    320:     $result.=&Apache::edit::tag_start($target,$token);
                    321:     $result.=&Apache::edit::text_arg('X:','x',$token,4).
                    322:       &Apache::edit::text_arg('Y:','y',$token,4).
1.5       albertel  323: 	&Apache::edit::text_arg('Value:','value',$token).
1.13      sakharuk  324: 	  &Apache::edit::end_row();
1.4       albertel  325:     $result.=&Apache::edit::end_table;
                    326:   } elsif ($target eq 'modified') {
                    327:     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
1.5       albertel  328: 						 'x','y','value');
1.4       albertel  329:     if ($constructtag) {
                    330:       $result = &Apache::edit::rebuild_tag($token);
                    331:       $result.=&Apache::edit::handle_insert();
                    332:     }
                    333:   }
1.3       tsai      334:   return $result;
1.1       tsai      335: }
                    336: 
                    337: sub end_location {
1.3       tsai      338:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.4       albertel  339:   my @result;
                    340:   if ($target eq 'edit') { @result=('','no') }
                    341:   return @result;
1.1       tsai      342: }
                    343: 
1.2       tsai      344: # <label>$var_abc</label>
1.1       tsai      345: sub start_label {
                    346:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.3       tsai      347:   my $result='';
1.26      albertel  348:   my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
1.5       albertel  349:   if ($target eq 'web' || $target eq 'tex' || 
                    350:       $target eq 'grade' || $target eq 'answer') {
1.4       albertel  351:     my $ltext=&Apache::lonxml::get_all_text("/label",$$parser[-1]);
1.14      albertel  352:     $ltext=&Apache::run::evaluate($ltext,$safeeval,$$parstack[-1]);
1.26      albertel  353:     if ($type eq 'image') {
                    354:       &Apache::lonxml::debug("Turning $ltext and $Apache::lonxml::pwd[-1]");
                    355:       $ltext="http://$ENV{'SERVER_NAME'}".&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],
                    356: 					   $ltext);
                    357:       &Apache::lonxml::debug("into $ltext");
                    358:       my $description = &Apache::lonxml::get_param('description',
                    359: 						   $parstack,$safeeval);
                    360:       push(@Apache::randomlabel::description,$description);
                    361:     }
1.4       albertel  362:     push(@Apache::randomlabel::label_arr,$ltext);
                    363:   } elsif ($target eq 'edit') {
1.26      albertel  364:     $result.=&Apache::edit::tag_start($target,$token,"$type Label");
1.4       albertel  365:     my $text=&Apache::lonxml::get_all_text("/label",$$parser[-1]);
1.27      albertel  366:     if ($type eq 'image') {
                    367:       $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    368:       $result.=&Apache::edit::text_arg('Description:','description',$token);
                    369:     }
1.26      albertel  370:     if ($type eq 'text') { $result.="Label Text:"; }
                    371:     if ($type eq 'image') { $result.="Path to image:"; }
                    372:     $result.=&Apache::edit::editline('',$text,'',20).
                    373:       &Apache::edit::end_table();
1.4       albertel  374:   } elsif ($target eq 'modified') {
                    375:     my $text=$$parser[-1]->get_text("/label");
1.26      albertel  376:     $result = '<label>';
                    377:     if ($type eq 'image') {
                    378:       my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
                    379: 						   'description');
                    380:       if ($constructtag) {
                    381: 	$result = &Apache::edit::rebuild_tag($token);
                    382:       } else {
                    383: 	$result = $token->[4];
                    384:       }
                    385:     }
                    386:     $result.=&Apache::edit::modifiedfield($token);
1.4       albertel  387:   }
1.3       tsai      388:   return $result;
1.1       tsai      389: }
                    390: 
                    391: sub end_label {
1.3       tsai      392:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.4       albertel  393:   my @result;
                    394:   if ($target eq 'edit') { @result=('','no') }
                    395:   return @result;
1.1       tsai      396: }
                    397: 
                    398: 
                    399: 
                    400: 1;
                    401: __END__
                    402:  

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