--- loncom/homework/matchresponse.pm	2007/04/11 09:20:32	1.63
+++ loncom/homework/matchresponse.pm	2007/04/17 23:25:09	1.64
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Full matching style response
 #
-# $Id: matchresponse.pm,v 1.63 2007/04/11 09:20:32 foxr Exp $
+# $Id: matchresponse.pm,v 1.64 2007/04/17 23:25:09 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -415,6 +415,24 @@ sub grade_response {
     }
 }
 
+sub format_prior_answer {
+    my ($mode,$answer,$other_data) = @_;
+    my %answer      =&Apache::lonnet::str2hash($answer);
+    my $foil_order  =$other_data->[0];
+    my %grading     =&Apache::lonnet::str2hash($other_data->[1]);
+    my @items       =&Apache::lonnet::str2array($other_data->[2]);
+    my $output;
+    
+    foreach my $name (@{ $foil_order }) {
+	my $item=shift(@items);
+	$output .= '<tr><td>'.$item.'</td></tr>';
+    }
+    return if (!defined($output));
+
+    $output = '<table class="LC_prior_match">'.$output.'</table>';
+    return $output;
+}
+
 sub itemdisplay {
     my ($location)=@_;
     if ($location eq 'top' &&
@@ -426,6 +444,7 @@ sub itemdisplay {
     }
     return undef;
 }
+
 sub displayfoils {
     my ($target,$max,$randomize)=@_;
     my ($tabsize, $lefttabsize, $righttabsize);
@@ -576,6 +595,12 @@ sub displayfoils {
 	    $result='\setlength{\tabcolsep}{1 mm}\begin{tabular}{p{'.$lefttabsize.'}p{'.$righttabsize.'}}\begin{minipage}{'.$lefttabsize.'}'.$result.'\end{minipage}&\begin{minipage}{'.$righttabsize.'}'.$question.'\end{minipage}\end{tabular}';
 	}
     }
+    if ($target eq 'web') {
+	&Apache::response::setup_prior_tries_hash(\&format_prior_answer,
+						  [\@whichfoils,
+						   'submissiongrading',
+						   'submissionitems']);
+    }
     if ($target ne 'tex') {$result.="<br />";} else {$result.=' \\\\ ';}
     return $result;
 }