--- loncom/homework/response.pm	2004/03/16 22:00:51	1.95
+++ loncom/homework/response.pm	2004/05/07 17:20:19	1.98
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # various response type definitons response definition
 #
-# $Id: response.pm,v 1.95 2004/03/16 22:00:51 albertel Exp $
+# $Id: response.pm,v 1.98 2004/05/07 17:20:19 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -47,11 +47,11 @@ sub start_response {
     push (@Apache::inputtags::responselist,$id);
     @Apache::inputtags::inputlist=();
     if ($Apache::inputtags::part eq '') {
-	&Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem")));
+	&Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
     }
     if ($Apache::inputtags::response_with_no_part &&
 	$Apache::inputtags::part ne '0') {
-	&Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur.")).'<br />');
+	&Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
     }
     if ($Apache::inputtags::part eq '0') {
 	$Apache::inputtags::response_with_no_part=1;
@@ -199,7 +199,7 @@ sub check_for_previous {
     my %previous;
     $previous{'used'} = 0;
     foreach my $key (sort(keys(%Apache::lonhomework::history))) {
-	if ($key =~ /resource\.$partid\.$id\.submission/) {
+	if ($key =~ /resource\.$partid\.$id\.submission$/) {
 	    &Apache::lonxml::debug("Trying $key");
 	    my $pastresponse=$Apache::lonhomework::history{$key};
 	    if ($pastresponse eq $curresponse) {
@@ -597,6 +597,15 @@ sub analyze_store_foilgroup {
     push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
 }
 
+sub check_if_computed {
+    my ($token,$parstack,$safeeval,$name)=@_;
+    my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
+    if ($value ne $token->[2]{$name}) {
+	my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
+	$Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
+    }
+}
+
 sub pick_foil_for_concept {
     my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
     if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; }