--- loncom/xml/run.pm	2000/11/14 22:24:38	1.10
+++ loncom/xml/run.pm	2001/01/04 19:14:10	1.14
@@ -23,14 +23,26 @@ sub evaluateold {
   return $result
 }
 
+$Apache::run::EVALUATE_STRING=<<'ENDEVALUATE';  
+  my %oldexpressions=();
+  while (!$oldexpressions{$_}) {
+    $oldexpressions{$_}=1;
+    $_ =~s/((?:\$|\&)(?:[\#|\$]*[A-Za-z][\w]*|\{[A-Za-z][\w]*\}))([\[\{][^\$\&\]\}]+[\]\}])*?(\([^\$\&\)]+\))*?(?=[^\[\{\(]|$)/eval(defined(eval($1.$2))?eval('$1.$2.$3'):'$1.$2.$3')/seg;
+  }
+ENDEVALUATE
+
 sub evaluate {
   my ($expression,$safeeval,$decls) = @_;
   unless (defined $expression) { return ''; }
   my $result = '';
   $@='';
-  $safeeval->reval('{'.$decls.';&evaluate(q|'.$expression.'|);}');
+  print $decls
+  $safeeval->reval('{'.$decls.';$_=<<\'EXPRESSION\';'."\n".$expression.
+		   "\n".'EXPRESSION'."\n".$EVALUATE_STRING.'}');
+#  $safeeval->reval('{'.$decls.';<< &evaluate(q|'.$expression.'|);}');
   if ($@ eq '') {
     $result = $safeeval->reval('return $_;');
+    chomp $result;
   } else {
     &Apache::lonxml::error("substitution on:$expression:with:$decls:caused $@");
   }  
@@ -41,12 +53,17 @@ sub run {
   my ($code,$safeeval) = @_;
 #  print "inside run\n";
   $@='';
-  my $result=$safeeval->reval($code);
+  my (@result)=$safeeval->reval($code);
   if ($@ ne '') { 
     &Apache::lonxml::error(":$code:caused"); 
     &Apache::lonxml::error($@); 
   }
-  return $result;
+  if ( $#result < '1') {
+    return $result[0];
+  } else {
+    &Apache::lonxml::debug("<b>Got lots results</b>:$#result:");
+    return (@result);
+  }
 }
 
 1;