--- loncom/homework/default_homework.lcpm	2001/08/22 22:21:46	1.35
+++ loncom/homework/default_homework.lcpm	2001/10/01 20:15:30	1.37
@@ -13,21 +13,17 @@ $rad2deg=180.0/$pi;
 $deg2rad=$pi/180.0;
 
 sub caparesponse_check {
-  my $answer='';  #done
-  my $type='';    #done
+  #not properly used yet: calc
+  #not to be used: $ans_fmt
+  my ($answer,$type,$tol,$sig,$ans_fmt,$unit,$calc) = 
+	eval $_[1].';return ($answer,$type,$tol,$sig,$ans_fmt,$unit,$calc);';
+
   my $tol_type=''; # gets it's value from whether tol has a % or not done
-  my $tol='';     #done
-  my $sig='';     #done lowerbnd,upperbnd
   my $sig_lbound=''; #done
   my $sig_ubound=''; #done
-  my $ans_fmt='';
-  my $unit='';     #done
-  my $calc='';
   my ($response,$expr)=@_;
 
 
-  ($answer,$type,$tol,$sig,$ans_fmt,
-   $unit,$calc) = eval $expr.';return ($answer,$type,$tol,$sig,$ans_fmt,$unit,$calc);';
   #type's definitons come from capaParser.h
   my $message='';
   #remove leading and trailing whitespace
@@ -88,14 +84,14 @@ sub caparesponse_check {
   elsif ($result =='12') { $result='WANTED_NUMERIC'; }
   else  {$result = "ERROR: Unknown Result:$result:$@:";}
 
-  return "$result:<br />Error $error:<br />Answer $answer:<br />Response $response:<br /> type-$type|$tol|$tol_type|$sig:$sig_lbound:$sig_ubound|$units<br />$message$expr";
+  return "$result:<br />Error $error:<br />Answer $answer:<br />Response $response:<br /> type-$type|$tol|$tol_type|$sig:$sig_lbound:$sig_ubound|$unit|<br />$message$expr";
 }
 
-sub caparesponse_check_list {
-  my ($response,$expr)=@_;
+sub get_array_args {
+  my ($expr,$arg)=@_;
   # do these first, because who knows what varname the instructor might have used
   # but it probably isn't $CAPARESPONSE_CHECK_LIST_answer
-  my $CAPARESPONSE_CHECK_LIST_answer = eval $expr.';return $answer';
+  my $CAPARESPONSE_CHECK_LIST_answer = eval $expr.';return $'.$arg; #'
   my (@list) = eval $CAPARESPONSE_CHECK_LIST_answer;
   my $result='';
   $result.="error:$@:<br />";
@@ -104,6 +100,12 @@ sub caparesponse_check_list {
     $result.="list zero is undefined<br />";
     $list[0]=$CAPARESPONSE_CHECK_LIST_answer;
   }
+  return @list;
+}
+
+sub caparesponse_check_list {
+  my ($response,$expr)=@_;
+  my (@list) = &get_array_args($expr,'answer');
   my $aresult='';
   my $current_answer;
   $result.="Got response :$CAPARESPONSE_CHECK_LIST_answer:$list[0]:<br />";