--- loncom/homework/optionresponse.pm	2001/02/19 20:36:26	1.3
+++ loncom/homework/optionresponse.pm	2001/03/01 00:59:33	1.5
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 # option list style responses
-
+# 2/21 Guy
 package Apache::optionresponse;
 use strict;
 
@@ -24,6 +24,8 @@ sub end_optionresponse {
 %Apache::response::foilgroup={};
 sub start_foilgroup {
   %Apache::response::foilgroup={};
+  $Apache::optionresponse::conceptgroup=0;  
+  &setrandomnumber();
   return '';
 }
 
@@ -34,6 +36,7 @@ sub setrandomnumber {
     +&Apache::lonnet::numval($Apache::inputtags::part)
       +&Apache::lonnet::numval($Apache::inputtags::response['-1']);
   srand($rndseed);
+  &Apache::lonxml::debug("randseed $rndseed");
   return '';
 }
 
@@ -43,7 +46,6 @@ sub end_foilgroup {
   my $result;
   if ($target ne 'meta') {
     my $name;
-    &setrandomnumber();
     my ($count,$max) = &getfoilcounts($parstack,$safeeval);
     if ($count>$max) { $count=$max } 
     &Apache::lonxml::debug("Count is $count from $max");
@@ -137,37 +139,57 @@ sub displayfoils {
   return $result."<br />";
 }
 
+
 sub start_conceptgroup {
+  $Apache::optionresponse::conceptgroup=1;  
+  %Apache::response::conceptgroup={};
+  return '';
 }
 
 sub end_conceptgroup {
+  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
+  $Apache::optionresponse::conceptgroup=0;  
+  if ($target eq 'web' || $target eq 'grade') {
+    my @names = @{ $Apache::response::conceptgroup{'names'} };
+    my $pick=int rand $#names+1;
+    my $name=$names[$pick];
+    push @{ $Apache::response::foilgroup{'names'} }, $name;
+    $Apache::response::foilgroup{"$name.value"} =  $Apache::response::conceptgroup{"$name.value"};
+    $Apache::response::foilgroup{"$name.text"} =  $Apache::response::conceptgroup{"$name.text"};
+    my $args;
+    if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
+    my $concept = &Apache::run::run("{$args;".'return $concept}',$safeeval);
+    $Apache::response::foilgroup{"$name.concept"} = $concept;
+    &Apache::lonxml::debug("Selecting $name in $concept");
+  }
+  return '';
 }
 
 sub start_foil {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web') { 
-    $Apache::lonxml::redirection--; 
-  }
+  if ($target eq 'web') { &Apache::lonxml::startredirection; }
   return '';
 }
 
 sub end_foil {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
+  my $text ='';
+  if ($target eq 'web') { $text=&Apache::lonxml::endredirection; }
   if ($target eq 'web' || $target eq 'grade') {
     my $args ='';
     if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
     my $value = &Apache::run::run("{$args;".'return $value}',$safeeval);
     if ($value ne 'unused') {
       my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
-      push @{ $Apache::response::foilgroup{'names'} }, $name;
-      $Apache::response::foilgroup{"$name.value"} = $value;
-      $Apache::response::foilgroup{"$name.text"} = $Apache::lonxml::outputstack;
-    }
-  }
-  if ($target eq 'web' ) {
-    $Apache::lonxml::redirection++;
-    if ($Apache::lonxml::redirection == 1) { 
-      $Apache::lonxml::outputstack=''; 
+      if ( $Apache::optionresponse::conceptgroup ) {
+	push @{ $Apache::response::conceptgroup{'names'} }, $name;
+	$Apache::response::conceptgroup{"$name.value"} = $value;
+	$Apache::response::conceptgroup{"$name.text"} = $text;	
+      } else {
+	push @{ $Apache::response::foilgroup{'names'} }, $name;
+	$Apache::response::foilgroup{"$name.value"} = $value;
+	$Apache::response::foilgroup{"$name.text"} = $text;
+      }
     }
   }
   return '';