--- loncom/homework/response.pm	2000/11/28 20:11:25	1.10
+++ loncom/homework/response.pm	2001/02/07 00:29:59	1.21
@@ -7,7 +7,25 @@ package Apache::response;
 use strict;
 
 sub BEGIN {
-  &Apache::lonxml::register('Apache::response',('responseparam','caparesponse'));
+  &Apache::lonxml::register('Apache::response',('responseparam','caparesponse','numericalresponse','radiobuttonresponse','optionresponse','imageresponse'));
+}
+
+sub start_response {
+  my ($parstack,$safeeval)=@_;  
+  my $args ='';
+  if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
+  my $id = &Apache::run::run("{$args;".'return $id}',$safeeval);
+  if ($id eq '') { $id = $Apache::lonxml::curdepth; }
+  push (@Apache::inputtags::response,$id);
+  push (@Apache::inputtags::responselist,$id);
+  @Apache::inputtags::inputlist=();
+  return $id;
+}
+
+sub end_response {
+  pop @Apache::inputtags::response;
+  @Apache::inputtags::inputlist=();
+  return '';
 }
 
 sub meta_parameter_write {
@@ -62,6 +80,18 @@ sub mandatory_part_meta {
 #
 }
 
+sub check_for_previous {
+  return '0';
+}
+
+sub start_numericalresponse {
+  require Apache::caparesponse; 
+  import Apache::caparesponse; 
+  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
+  Apache::caparesponse::start_numericalresponse($target,$token,$parstack,$parser,$safeeval,$style);;
+  return "";
+}
+
 sub start_caparesponse {
   require Apache::caparesponse; 
   import Apache::caparesponse; 
@@ -71,9 +101,33 @@ sub start_caparesponse {
   return "";
 }
 
+sub start_radiobuttonresponse {
+  require Apache::radiobuttonresponse; 
+  import Apache::radiobuttonresponse; 
+  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
+  Apache::radiobuttonresponse::start_radiobuttonresponse($target,$token,$parstack,$parser,$safeeval,$style);;
+  return "";
+}
+
+sub start_optionresponse {
+  require Apache::optionresponse; 
+  import Apache::optionresponse; 
+  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
+  Apache::optionresponse::start_optionresponse($target,$token,$parstack,$parser,$safeeval,$style);;
+  return "";
+}
+
+sub start_imageresponse {
+  require Apache::imageresponse; 
+  import Apache::imageresponse; 
+  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
+  Apache::imageresponse::start_imageresponse($target,$token,$parstack,$parser,$safeeval,$style);;
+  return "";
+}
+
 sub start_responseparam {
   my ($target,$token,$parstack,$parser,$safeeval)=@_;
-  if ($target ne 'meta') {
+  if ($target eq 'grade' || $target eq 'web') {
     my $args='';
     if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
     my $default = &Apache::run::run("{$args;".'return $default}',$safeeval);
@@ -81,17 +135,21 @@ sub start_responseparam {
     &Apache::lonxml::debug("looking for resource.$Apache::inputtags::part.$name");
     my $value = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.$name");
     &Apache::lonxml::debug("$name has value :$value: and default :$default:");
-    if (!$value) {
+    if ($value eq '' || $value eq 'con_lost') {
+      &Apache::lonxml::debug("defaulting");
       $Apache::inputtags::params{$name}=$default;
     } else {
+      &Apache::lonxml::debug("using value");
       $Apache::inputtags::params{$name}=$value;
     }
     return '';
-  } else {
+  } elsif ($target eq 'meta') {
     return &meta_parameter_write($token->[2]->{'name'},
 				 $token->[2]->{'type'},
 				 $token->[2]->{'default'},
 				 $token->[2]->{'description'});
+  } else {
+    return '';
   }
 }