--- loncom/homework/bridgetask.pm	2006/01/30 21:01:46	1.99
+++ loncom/homework/bridgetask.pm	2006/02/21 22:41:29	1.114
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: bridgetask.pm,v 1.99 2006/01/30 21:01:46 albertel Exp $
+# $Id: bridgetask.pm,v 1.114 2006/02/21 22:41:29 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -188,19 +188,32 @@ sub add_grading_button {
     $result.='<input type="hidden" name="grade_target" value="webgrade" />';
     if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
 	my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
-	$result.='<p>Specify a section: '.$sec_select.'</p>';
-	$result.='<p>'.&mt("Grading Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
+	$result.='<table><tr>';
+	$result.='<td rowspan="4">Specify a section: </td><td rowspan="4">'.$sec_select.'</td>';
+	$result.='<td>'.' <input type="submit" name="reviewagrading" value="'.
+	    &mt("Select an entry from the grading queue:").'" /> ';
 
-	$result.=' <input type="submit" name="reviewagrading" value="'.
-	    &mt("Select an entry from the grading queue").'" /> </p>'."\n";
+	$result.= &mt("[_1] entries, [_2] ready, [_3] being graded",$entries,$ready,$locks).' </td></tr>'."\n";
 
 	($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
-	$result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
-	$result.=' <input type="submit" name="reviewasubmission" value="'.
-	    &mt("Select an entry from the review queue").'" /> </p>'."\n";
-	$result.=' <input type="submit" name="regradeasubmission" value="'.
-	    &mt("Select a user to regrade.").'" /> </p>'."\n";
-    }
+	$result.='<tr><td>'.
+	    ' <input type="submit" name="reviewasubmission" value="'.
+	    &mt("Select an entry from the review queue:").'" /> ';
+	$result.=&mt("[_1] entries, [_2] ready, [_3] being graded",
+		     $entries,$ready,$locks).'</td></tr>'."\n";
+	$result.='<tr><td> <input type="submit" name="regradeasubmission" value="'.
+	    &mt("List of user's grade status").'" /> </td></tr></table>'."\n";
+	$result.='<p> <input type="submit" name="regradeaspecificsubmission" value="'.
+	    &mt("Regrade specific user:").'" />'."\n";
+	$result.='<input type="text" size="12" name="gradinguser" />';
+	$result.=&Apache::loncommon::select_dom_form($env{'user.domain'},
+						     'gradingdomain');
+	$result.=' '.
+	    &Apache::loncommon::selectstudent_link('gradesubmission',
+						   'gradinguser',
+						   'gradingdomain');
+	$result.=&Apache::loncommon::studentbrowser_javascript();
+  }
     return $result;
 }
 
@@ -362,13 +375,13 @@ sub webgrade_standard_info {
     my ($version)=&get_version();
     my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
     my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
-    my $file_list="<ul>\n";
+    my $file_list="<ul class=\"handininfo\">\n";
     foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"})) {
 	my $file=$file_url.$partial_file;
 	$file=~s|/+|/|g;
 	&Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
 	$file_list.='<li><nobr><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
-	    &Apache::loncommon::icon($file).'" border=0"> '.$file.
+	    &Apache::loncommon::icon($file).'" border="0"> '.$file.
 	    '</a></nobr></li>'."\n";
     }
     $file_list.="</ul>\n";
@@ -378,11 +391,11 @@ sub webgrade_standard_info {
 				       );
 				       
     my $result=<<INFO;
-<div class="handininfo">
-  <input type="submit" name="next" value="$lt{'done'}" />
-  <input type="submit" name="stop" value="$lt{'stop'}" />
+  <div class="maincontrols">
+    <input type="submit" name="next" value="$lt{'done'}" />
+    <input type="submit" name="stop" value="$lt{'stop'}" />
+  </div>
   $file_list
-</div>
 INFO
     return $result;
 }
@@ -413,12 +426,21 @@ sub start_Task {
 	    $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
 	    my $symb=&Apache::lonnet::symbread();
 	    if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
-		$body_tag_start.='<form method="POST" action="/adm/slotrequest">'.
+		$body_tag_start.='<form method="POST" name="slotrequest" action="/adm/slotrequest">'.
 		    '<input type="hidden" name="symb" value="'.$symb.'" />'.
 		    '<input type="hidden" name="command" value="showslots" />'.
 		    '<input type="submit" name="requestattempt" value="'.
 		    &mt('Show Slot list').'" />'.
 		    '</form>';
+		my $target_id = 
+		    &Apache::lonstathelpers::make_target_id({symb => $symb,
+							     part => '0'});
+		$body_tag_start.='<form method="POST" name="gradingstatus" action="/adm/statistics">'.
+		    '<input type="hidden" name="problemchoice" value="'.$target_id.'" />'.
+		    '<input type="hidden" name="reportSelected" value="grading_analysis" />'.
+		    '<input type="submit" name="grading" value="'.
+		    &mt('Show Grading Status').'" />'.
+		    '</form>';
 	    }
 	}
     }
@@ -458,7 +480,20 @@ sub start_Task {
 		} elsif ($env{'form.donescreen'}) {
 		    my $title=&Apache::lonnet::gettitle();
 		    my @files=split(',',$Apache::lonhomework::history{'resource.'.$version.'.0.bridgetask.portfiles'});
-		    my $files='<ul><li>'.join('</li><li>',@files).'</li></ul>';
+		    my (undef,undef,$domain,$user)=
+			&Apache::lonxml::whichuser();
+		    my $files = '<ul>';
+		    foreach my $file (@files) {
+			my $url="/uploaded/$domain/$user/portfolio$file";
+			if (! &Apache::lonnet::stat_file($url)) {
+			    $file = &mt('<font color="red"> Nonexistant file:</font> <tt>[_1]</tt>',$file);
+			} else {
+			    $file = '<tt>'.$file.'</tt>';
+			}
+			$files .= '<li>'.$file.'</li>';
+		    }
+		    $files.='</ul>';
+
 		    $result.=<<DONESCREEN;
 <h2>$title</h2>
 <p> Files submitted: $files </p>
@@ -506,7 +541,7 @@ DONESCREEN
 	      $target eq 'webgrade') {
 	my $webgrade='yes';
 	if ($target eq 'webgrade') {
-	    $result.=$head_tag_start.$body_tag_start;
+	    $result.=$head_tag_start.'</head>'.$body_tag_start;
 	    #$result.='<br />Review'.&show_queue('reviewqueue');
 	    #$result.='<br />Grade'.&show_queue('gradingqueue');
 	}
@@ -515,7 +550,7 @@ DONESCREEN
         #       Hrrm, vaildation pass should perhaps say 'not_locked'
         #       perhaps do a search if there is a key that is mine and if
         #       there isn't reshow the queue....
-	my ($todo,$status_code)=&get_key_todo($target);
+	my ($todo,$status_code,$msg)=&get_key_todo($target);
 
 	if ($todo) {
 	    &setup_env_for_other_user($todo,$safeeval);
@@ -528,13 +563,9 @@ DONESCREEN
 	    $Apache::bridgetask::queue_key=$todo;
 	    &Apache::structuretags::initialize_storage();
 	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
-	    if ($target eq 'webgrade') {
-		#$result.='<br />After -'.&show_queue($env{'form.queue'});
-		$result.="\n".'<table width="100%" style="width:100%" border="1">';
-		if ($status_code eq 'selected') {
-		    $form_tag_start.=
-			'<input type="hidden" name="queuemode" value="selected" />';
-		}
+	    if ($target eq 'webgrade' && $status_code eq 'selected') {
+		$form_tag_start.=
+		    '<input type="hidden" name="queuemode" value="selected" />';
 	    }
 	} else {
 	    if ($target eq 'webgrade') {
@@ -544,7 +575,7 @@ DONESCREEN
 		if      ($status_code eq 'stop') {
 		    $result.='<b>'.&mt("Stopped grading.").'</b>'.$back;
 		} elsif ($status_code eq 'lock_failed') {
-		    $result.='<b>'.&mt("Failed to lock the request record.")
+		    $result.='<b>'.&mt("Failed to lock the requested record.")
 			.'</b>'.$back;
 		} elsif ($status_code eq 'unlock') {
 		    $result.='<b>'.&mt("Unlocked the requested record.")
@@ -556,6 +587,8 @@ DONESCREEN
 		    $result.=&select_user();
 		} elsif ($status_code eq 'unable') {
 		    $result.='<b>'.&mt("Unable to aqcuire a user to grade.").'</b>'.$back;
+		} elsif ($status_code eq 'not_allowed') {
+		    $result.='<b>'.&mt('Not allowed to grade the requested user.').' '.$msg.'</b>'.$back;
 		} else {
 		    $result.='<b>'.&mt("No user to be graded.").'</b>'.$back;
 		}
@@ -586,6 +619,9 @@ DONESCREEN
 	    }
 	    if ($webgrade eq 'yes') { $result.=&webgrade_standard_info(); }
 	}
+	if ($target eq 'webgrade') {
+	    $result.="\n".'<div id="criterialist">';
+	}
     } elsif ($target eq 'edit') {
 	$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
 	    &Apache::structuretags::problem_edit_header();
@@ -622,6 +658,57 @@ sub get_key_todo {
 	return (undef,'select_user');
     }
 
+
+    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
+
+    #need to try both queues..
+    if (defined($env{'form.regradeaspecificsubmission'}) &&
+	defined($env{'form.gradinguser'})               &&
+	defined($env{'form.gradingdomain'})               ) {
+	my ($symb,$cid)=&Apache::lonxml::whichuser();
+	my $cnum  = $env{'course.'.$cid.'.num'};
+	my $cdom  = $env{'course.'.$cid.'.domain'};
+	my $uname = $env{'form.gradinguser'};
+	my $udom  = $env{'form.gradingdomain'};
+
+	my $gradingkey=&encode_queue_key($symb,$udom,$uname);
+
+	my $queue;
+
+	if      (&in_queue('gradingqueue',$symb,$cdom,$cnum,$udom,$uname)) {
+	    $env{'form.queue'} = $queue = 'gradingqueue';
+	} elsif (&in_queue('reviewqueue' ,$symb,$cdom,$cnum,$udom,$uname)) {
+	    $env{'form.queue'} = $queue = 'reviewqueue';
+	}
+	
+	if (!$queue) {
+	    $env{'form.queue'} = $queue = 'none';
+	    #not queued so doing either a re or pre grade
+	    return ($gradingkey);
+	}
+
+	my $who=&queue_key_locked($queue,$gradingkey);
+	if ($who eq $me) {
+	    #already have the lock
+	    $env{'form.gradingkey'}=&Apache::lonnet::escape($gradingkey);
+	    return ($gradingkey);
+	}
+	
+	if (!defined($who)) {
+	    if (&lock_key($queue,$gradingkey)) {
+		return ($gradingkey);
+	    } else {
+		return (undef,'lock_failed');
+	    }
+	}
+
+	#otherwise (defined($who) && $who ne $me) some else has it...
+	return (undef,'not_allowed',
+		&mt('Another user ([_1]) currently has the record for [_2] locked.',
+		    $who,$env{'form.gradinguser'}.'@'.$env{'form.gradingdomain'}));
+    }
+
+
     my $queue=$env{'form.queue'};
 
     if (!defined($queue)) {
@@ -649,7 +736,6 @@ sub get_key_todo {
 	&& $env{'form.queuemode'} eq 'selected') {
 	
 	my $who=&queue_key_locked($queue,$gradingkey);
-	my $me=$env{'user.name'}.'@'.$env{'user.domain'};
 	if ($who eq $me) {
 	    &Apache::lonxml::debug("Found a key was given to me");
 	    return ($gradingkey,'selected');
@@ -914,7 +1000,7 @@ DONEBUTTON
 	    &Apache::structuretags::finalize_storage();
 	}
     } elsif ($target eq 'webgrade') {
-	$result.="</table>\n<hr />";
+	$result.="</div>\n<hr />";
 	#$result.='<input type="submit" name="next" value="'.
 	#    &mt('Save &amp; Next').'" /> ';
 	#$result.='<input type="submit" name="end" value="'.
@@ -1101,32 +1187,30 @@ sub show_queue {
     if ($tmp=~/^error: 2 /) {
 	return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
     }
-    $result.="\n<h3>Current Queue - $symb $queue </h3><table border='1'><tr>";
-    if ($with_selects) { $result.="<th></th>"; }
-    $result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";
+    my $title=&Apache::lonnet::gettitle($symb);
+    $result.="\n<h3>Current Queue - $title $queue </h3><table border='1'><tr>";
+    if ($with_selects) { $result.="<th>Status</th><th></th>"; }
+    $result.="<th>user</th><th>data</th></tr>";
     foreach my $key (sort(keys(%queue))) {
 	my ($symb,$uname,$udom) = &decode_queue_key($key);
 	if (!defined($classlist->{$uname.':'.$udom})) { next; }
 	if ($key=~/locked$/ && !$with_selects) {
-	    my $title=&Apache::lonnet::gettitle($symb);
-	    $result.="<tr><td>$title</td><td>$uname</td>";
-	    $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
+	    $result.="<tr><td>$uname</td>";
+	    $result.='<td>'.$queue{$key}.'</td></tr>';
 	} elsif ($key=~/timestamp$/ && !$with_selects) {
-	    my ($symb,undef) = split("\0",$key);
-	    my $title=&Apache::lonnet::gettitle($symb);
-	    $result.="<tr><td>$title</td><td></td>";
-	    $result.='<td>last queue modification time</td><td>'.
+	    $result.="<tr><td></td>";
+	    $result.='<td>'.
 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
 	} elsif ($key!~/(timestamp|locked)$/) {
-	    my $title=&Apache::lonnet::gettitle($symb);
 	    $result.="<tr>";
 	    my $slot=$queue{$key}->[0];
 	    my %slot_data=&Apache::lonnet::get_slot($slot);
 	    if ($with_selects) {
 		my $ekey=&Apache::lonnet::escape($key);
-		my ($action,$description)=('select',&mt('Select'));
+		my ($action,$description,$status)=('select',&mt('Select'));
 		if (exists($queue{"$key\0locked"})) {
 		    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
+		    $status=&mt('Locked by <tt>[_1]</tt>',$queue{"$key\0locked"});
 		    if ($me eq $queue{"$key\0locked"}) {
 			($action,$description)=('resume',&mt('Resume'));
 		    } else {
@@ -1140,8 +1224,9 @@ sub show_queue {
 		}
 		if (time > $slot_data{'endtime'}) {
 		    $result.=(<<FORM);
+<td>$status</td>
 <td>
-<form method="POST">
+<form style="display: inline" method="POST">
  <input type="hidden" name="gradingkey" value="$ekey" />
  <input type="hidden" name="queue" value="$queue" />
  <input type="hidden" name="gradingaction" value="$action" />
@@ -1157,8 +1242,9 @@ FORM
 		    $result.='<td>'.&mt("In Progress").'</td>'
 		}
 	    }
-	    $result.="<td>$title</td><td>$uname</td>";
-	    $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
+	    $result.= "<td>".$fullname->{$uname.':'.$udom}.
+		" <tt>($uname\@$udom)</tt> </td>";
+	    $result.='<td>Slot: '.$slot.' End time: '.
 		&Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
 		"</td></tr>";
 	}
@@ -1443,10 +1529,12 @@ sub select_user {
 		$seclist.='<input type="hidden" name="chosensections" 
                                value="'.$sec.'" />';
 	    }
+	    my $studentdis = $student;
+	    $studentdis =~ tr/:/@/;
 	    $result.=<<RESULT;
 <tr>
   <td>
-    <form method="POST">
+    <form style="display: inline" method="POST">
       <input type="hidden" name="gradingkey" value="$todo" />
       <input type="hidden" name="queue" value="$queue" />
       <input type="hidden" name="webgrade" value="no" />
@@ -1454,7 +1542,7 @@ sub select_user {
       <input type="submit" name="submit" value="Regrade" />
       $seclist
     </form>
-  <td>$fullname->{$student}</td>
+  <td>$fullname->{$student} <tt>($studentdis)</tt></td>
   <td>
 RESULT
         }
@@ -1474,6 +1562,9 @@ RESULT
 	if ($status{'version'}) {
 	    $result .= ' '.&mt('Version').' '.$status{'version'};
 	}
+	if ($status{'grader'}) {
+	    $result .= ' '.&mt('(Graded by [_1])',$status{'grader'}).' ';
+	}
 	$result.= '</td><td>';
 	if ($status{'reviewqueue'} eq 'enqueued') {
 	    $result .= &mt('Awaiting Review');
@@ -1677,7 +1768,7 @@ sub get_instance {
 			$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
 			$result.='</p><p class="grade">'.$status_display.'</p>';
 			if ($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}) {
-			    $result.='<p class="comment">'.$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}.'</p>';
+			    $result.='<p class="comment">'.&mt('Comment: [_1]',$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}).'</p>';
 			}
 			$result.='</div>';
 		    }
@@ -1692,28 +1783,29 @@ sub get_instance {
 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
 		my $link='criteria_'.$instance.'_'.$id;
 		my $status=$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"};
-		$result.='<tr><td width="100%" valign="top">'.
-		    '<a name="'.$link.'" />'.
-		    '<a name="next_'.$last_link.'" />'.
-		    '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">';
+		$result.='<div class="criteria" id="'.$link.'">'."\n".
+		    '<a name="'.$link.'" />'."\n".
+		    '<a name="next_'.$last_link.'" />'."\n".
+		    '<div class="criteriatext">'."\n";
 		@Apache::scripttag::parser_env = @_;
 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
-		$result.='</textarea>'.
+		$result.='</div>'."\n".
 		    #$dimension{$instance.'.criteria.'.$id}.
-		    '</td>'.
-		    '<td><nobr>Additional Comment for Student</nobr> <br />'.
-		    '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}).'</textarea>'.
-		    '</td>'.
-		    '<td>'.
-		    '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label></nobr><br />'.
-		    '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
-		    '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
-		    '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
-		    '</td>'.
-		    '<td>'.
-		    '<a href="#'.$last_link.'">Prev</a><br />'.
-		    '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
-		    '</td></tr>';
+		    '<div class="grade">'."\n".
+		    '<label class="ungraded"><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label>'."\n".
+		    '<label class="fail"><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label>'."\n".
+		    '<label class="pass"><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label>'."\n".
+		    '<label class="review"><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label>'."\n".
+		    '</div>'."\n".
+		    '<label class="comment">'.&mt('Additional Comment for Student')."\n".
+		    '<textarea class="comment_area" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}).'</textarea>'."\n".
+		    '</label>'."\n".
+		    '<ul class="navbuttons">'."\n".
+		    '<li><a href="#'.$last_link.'">Prev</a></li>'."\n".
+		    '<li><a href="#next_'.$link.'">Next</a></li>'."\n".
+		    '</ul>'."\n".
+                    '</div>'."\n";
+		$result.=&grading_history($version,$dim,$instance,$id);
 		$last_link=$link;
 	    }
 	} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
@@ -1762,6 +1854,38 @@ sub get_instance {
     }
 }
 
+sub grading_history {
+    my ($version,$dim,$instance,$criteria) = @_;
+    if (!&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
+	return '';
+    }
+    my ($result,$grader);
+    my $scope="resource.$version.0.$dim.$instance.$criteria";
+    foreach my $t (1..$Apache::lonhomework::history{'version'}) {
+	if (exists($Apache::lonhomework::history{$t.':resource.0.regrader'})) {
+	    my ($gname,$gdom) = 
+		split('@',$Apache::lonhomework::history{$t.':resource.0.regrader'});
+	    my $fullname = &Apache::loncommon::plainname($gname,$gdom);
+	    $grader = &Apache::loncommon::aboutmewrapper($fullname,
+							 $gname,$gdom);
+	}
+	my $entry;
+	if (exists($Apache::lonhomework::history{"$t:$scope.status"})) {
+	    $entry.="<tt>".$Apache::lonhomework::history{"$t:$scope.status"}.'</tt>';
+	}
+	if (exists($Apache::lonhomework::history{"$t:$scope.comment"})) {
+	    $entry.=' comment: "'.$Apache::lonhomework::history{"$t:$scope.comment"}.'"';
+	}
+	if ($entry) {
+	    $result.= "<li>$grader : $entry </li>";
+	}
+    }
+    if ($result) {
+	return '<ul class="pastgrading">'.$result.'</ul>';
+    }
+    return '';
+}
+
 sub start_IntroParagraph {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result;