--- loncom/homework/outputtags.pm	2002/10/16 20:42:22	1.21
+++ loncom/homework/outputtags.pm	2003/09/08 18:36:39	1.32
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # tags that create controlled output
 #
-# $Id: outputtags.pm,v 1.21 2002/10/16 20:42:22 albertel Exp $
+# $Id: outputtags.pm,v 1.32 2003/09/08 18:36:39 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -33,7 +33,7 @@ use Apache::lonnet;
 use POSIX qw(strftime);
 
 BEGIN {
-    &Apache::lonxml::register('Apache::outputtags',('displayduedate','displaytitle'));
+    &Apache::lonxml::register('Apache::outputtags',('displayduedate','displaytitle','displayweight'));
 }
 
 sub initialize_outputtags {
@@ -50,6 +50,7 @@ sub start_displayduedate {
     }
     my $status=$Apache::inputtags::status['-1'];
     &Apache::lonxml::debug("got a $status in duedatebox");
+    my $style = &Apache::lonxml::get_param('style',$parstack,$safeeval);
     if (($status =~ /CAN.*_ANSWER/) && ($target eq 'web')) {
 #	my $format = &Apache::lonxml::get_param('format',$parstack,$safeeval);
 #	if ($format eq '') {
@@ -59,9 +60,13 @@ sub start_displayduedate {
 	my $id = $Apache::inputtags::part;
 	my $date = &Apache::lonnet::EXT("resource.$id.duedate");
 	&Apache::lonxml::debug("duedatebox found $date for $id");
-	$result ='<table border="on"><tr><td>Due '.
-	    &Apache::lonnavmaps::timeToHumanString($date).
+	if (lc($style) !~ 'plain') { 
+	    $result ='<table border="on"><tr><td>Due '.
+		&Apache::lonnavmaps::timeToHumanString($date).
 		'</td></tr></table>';
+	} else {
+	    $result='Due '.&Apache::lonnavmaps::timeToHumanString($date);
+	}
 #        } else {
 #	    $result ='<table border="on"><tr><td>No due date set.</td></tr></table>';
 #	}
@@ -88,16 +93,22 @@ sub start_displaytitle {
     } else {
 	$Apache::outputtags::showonce{'displayduetitle'}=1;
     }
+    my $name=&Apache::structuretags::get_resource_name();
+    my $style = &Apache::lonxml::get_param('style',$parstack,$safeeval);
     if ($target eq 'web') {
-	$result="<h1>$Apache::lonhomework::name</h1>";
+	$result=$name;
+	if (lc($style) !~ 'plain') { $result="<h1>$name</h1>"; }
     } elsif ($target eq 'edit') {
 	$result=&Apache::edit::tag_start($target,$token);
 	$result.='</td></tr>';
 	$result.=&Apache::edit::end_table();
-    } elsif ($target eq 'tex') {
-	$Apache::lonhomework::name=~s/%/\%/g;
-	$Apache::lonhomework::name=~s/&/\&/g;
-	$result='\vskip 0 mm\noindent\textbf{'.$Apache::lonhomework::name.'}\vskip 0 mm';
+    } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
+	$name=&Apache::lonxml::latex_special_symbols($name);
+	if (lc($style) !~ 'plain') { 
+	    $result='\vskip 0 mm\noindent\textbf{'.$name.'}\vskip 0 mm';
+	} else {
+	    $result=$name;
+	}
     }
     return $result;
 }
@@ -106,6 +117,68 @@ sub end_displaytitle {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my @result;
     if ($target eq 'edit') { $result[1]='no'; }
+    return @result;
+}
+
+sub multipart {
+    my ($uri)=@_;
+    if (!defined($uri)) { $uri=$ENV{'request.uri'}; }
+    my @parts;
+    my $metadata = &Apache::lonnet::metadata($uri,'packages');
+    foreach (split(/\,/,$metadata)) {
+	if ($_ =~ /^part_(.*)$/) {
+	    my $part = $1;
+	    if ($part ne '0') { push(@parts,$part); }
+	}
+    }
+    return @parts;
+}
+
+sub start_displayweight {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+    my $result;
+    if (exists($Apache::outputtags::showonce{'displayweight'})) {
+	if(grep(/^\Q$Apache::inputtags::part\E$/,
+		@{$Apache::outputtags::showonce{'displayweight'}})) {
+	    return '';
+	}
+    }
+    push(@{$Apache::outputtags::showonce{'displayweight'}},
+	 $Apache::inputtags::part);
+    my $status=$Apache::inputtags::status['-1'];
+    if ($target eq 'web' || $target eq 'tex') {
+	my $id = $Apache::inputtags::part;
+	if ($id ne '0') {
+	    my $weight = &Apache::lonnet::EXT("resource.$id.weight");
+	    if (!defined($weight) || ($weight eq '')) { $weight=1; }
+	    $result.=$weight;
+	} else {
+	    my @parts=&multipart($ENV{'request.uri'});
+	    my $weight;
+	    if (@parts) {
+	        foreach my $part (@parts) {
+		    my $pweight=&Apache::lonnet::EXT("resource.$part.weight");
+		    if (!defined($pweight) || ($pweight eq '')) { $pweight=1; }
+		    $weight+=$pweight;
+	        }
+	    } else {
+		$weight = &Apache::lonnet::EXT("resource.$id.weight");
+                if (!defined($weight) || ($weight eq '')) { $weight=1; }
+	    }
+	    $result=$weight;
+	}
+    } elsif ( $target eq 'edit' ) {
+	$result=&Apache::edit::tag_start($target,$token);
+	$result.='</td></tr>';
+	$result.=&Apache::edit::end_table();
+    }
+    return $result;
+}
+
+sub end_displayweight {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+    my @result;
+    if ($target eq 'edit') { $result[1]='no'; }
     return @result;
 }