--- loncom/homework/structuretags.pm	2005/07/10 22:56:26	1.298
+++ loncom/homework/structuretags.pm	2005/09/23 20:39:35	1.303
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: structuretags.pm,v 1.298 2005/07/10 22:56:26 albertel Exp $
+# $Id: structuretags.pm,v 1.303 2005/09/23 20:39:35 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -127,7 +127,7 @@ sub page_start {
 						  $safeeval);
 	my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
 					       $safeeval);
-	$body_tag_start=&body_tag_start($background,$bgcolor);
+	$body_tag_start=&body_tag_start($target,$background,$bgcolor);
 	if ( ($target eq 'web' || $target eq 'webgrade')
 	     && $env{'request.state'} ne 'construct') {
 	    my ($symb,undef,undef,undef,$publicuser)=
@@ -511,7 +511,6 @@ sub start_problem {
 	    defined($env{'form.problemtype'})) {
 	    $Apache::lonhomework::type=$env{'form.problemtype'};
 	}
-	$Apache::lonhomework::default_type = $Apache::lonhomework::type;
 	&Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
     }
     if ($Apache::lonhomework::type eq '' ) {
@@ -524,6 +523,7 @@ sub start_problem {
 	    &Apache::lonxml::debug("Using default type, problem, :$uri:");
 	}
     }
+    $Apache::lonhomework::default_type = $Apache::lonhomework::type;
 
     #added vars to the scripting enviroment
     my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
@@ -566,11 +566,12 @@ sub start_problem {
                              value="'.$env{'form.username'}.'" />';
 	    if ($env{'user.adv'}) {
 		$form_tag_start.=
-		    ' <input type="checkbox" name="showallfoils" ';
+		    ' <label><input type="checkbox" name="showallfoils" ';
 		if (defined($env{'form.showallfoils'})) {
 		    $form_tag_start.='checked="on"';
 		}
-		$form_tag_start.= ' />'.&mt('&nbsp;Show&nbsp;All&nbsp;Foils');
+		$form_tag_start.= ' />'.&mt('&nbsp;Show&nbsp;All&nbsp;Foils').
+		    '</label>';
 	    }
 	    $form_tag_start.='<hr />';
 	}
@@ -644,6 +645,10 @@ sub start_problem {
 	    }
 	    my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
 	    if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
+	    if (lc($env{'course.'.$env{'request.course.id'}.
+			    '.disableexampointprint'}) eq 'yes') {
+		$allow_print_points=0;
+	    }
 	    my $duedate = &Apache::lonnet::EXT("resource.$id.duedate"); 
 	    $duedate = POSIX::strftime("%c",localtime($duedate));
 	    my $temp_file;
@@ -1073,17 +1078,19 @@ sub start_randomlist {
 	    #  print "<b>END-TAG $b_tok->[1]</b><br />";
 	    # }
 	}
-	my @idx_arr = (0 .. $#randomlist);
-	&Apache::structuretags::shuffle(\@idx_arr);
-	my $bodytext = '';
-	my $show=$#randomlist;
-	my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
-	$showarg--;
-	if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
-	for(0 .. $show) {
-	    $bodytext .= "$randomlist[ $idx_arr[$_] ]";
+	if (@randomlist) {
+	    my @idx_arr = (0 .. $#randomlist);
+	    &Apache::structuretags::shuffle(\@idx_arr);
+	    my $bodytext = '';
+	    my $show=$#randomlist;
+	    my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
+	    $showarg--;
+	    if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
+	    for(0 .. $show) {
+		$bodytext .= "$randomlist[ $idx_arr[$_] ]";
+	    }
+	    &Apache::lonxml::newparser($parser,\$bodytext);
 	}
-	&Apache::lonxml::newparser($parser,\$bodytext);
     } elsif ($target eq 'edit' ) {
 	$result .=&Apache::edit::tag_start($target,$token);
 	$result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
@@ -1100,7 +1107,7 @@ sub start_randomlist {
 sub shuffle {
     my $a=shift;
     my $i;
-    if (defined(@$a)) {
+    if (ref($a) eq 'ARRAY' && @$a) {
 	&Apache::response::pushrandomnumber();
 	for($i=@$a;--$i;) {
 	    my $j=int(&Math::Random::random_uniform() * ($i+1));
@@ -1206,6 +1213,10 @@ sub start_part {
 		    if (defined($maxtries) && $maxtries < 0) {
 			$allow_print_points=0;
 		    }
+		    if (lc($env{'course.'.$env{'request.course.id'}.
+				    '.disableexampointprint'}) eq 'yes') {
+			$allow_print_points=0;
+		    }
 		    if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
 		} elsif ($target eq 'web') {
 		    $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
@@ -1271,7 +1282,8 @@ sub start_preduedate {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
 	&Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
-	if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
+	if (!$Apache::lonhomework::scantronmode &&
+	    $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
 	    $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
 	    &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
 	    &Apache::lonxml::get_all_text("/preduedate",$parser);
@@ -1287,7 +1299,8 @@ sub end_preduedate {
 sub start_postanswerdate {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     if ($target eq 'web' || $target eq 'grade') {
-	if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
+	if ($Apache::lonhomework::scantronmode ||
+	    $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
 	    &Apache::lonxml::get_all_text("/postanswerdate",$parser);
 	}
     } elsif ($target eq 'tex') {
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>500 Internal Server Error</title>
</head><body>
<h1>Internal Server Error</h1>
<p>The server encountered an internal error or
misconfiguration and was unable to complete
your request.</p>
<p>Please contact the server administrator at 
 root@localhost to inform them of the time this error occurred,
 and the actions you performed just before this error.</p>
<p>More information about this error may be available
in the server error log.</p>
</body></html>