--- rat/lonuserstate.pm	2000/10/31 19:31:42	1.14
+++ rat/lonuserstate.pm	2000/11/01 22:21:36	1.15
@@ -11,7 +11,7 @@
 # 7/1,7/3,7/4,7/7,7/8,7/10 Gerd Kortemeyer)
 #
 # 7/15,7/17,7/18,8/1,8/2,8/4,8/5,8/21,8/22,8/23,8/30,
-# 9/2,9/4,9/29,9/30,10/2,10/11,10/30,10/31 Gerd Kortemeyer
+# 9/2,9/4,9/29,9/30,10/2,10/11,10/30,10/31,11/1 Gerd Kortemeyer
 
 package Apache::lonuserstate;
 
@@ -22,6 +22,9 @@ use HTML::TokeParser;
 use Apache::lonnet();
 use GDBM_File;
 use Apache::lonmsg;
+use Safe;
+use Opcode;
+
 
 # ---------------------------------------------------- Globals for this package
 
@@ -352,9 +355,50 @@ sub readmap {
                        "Could not tie coursemap $fn for $uri.</font>"); 
    }
    &Apache::lonmsg::author_res_msg($ENV{'request.course.uri'},$errtext);
+   &evalstate();
    return $errtext;
 }
- 
+
+# ------------------------------------------------------- Evaluate state string
+
+sub evalstate {
+    my $safeeval = new Safe;
+    my $fn=$ENV{'request.course.fn'}.'.state';
+    my $state='2';
+    if (-e $fn) {
+       my @conditions=();
+       {
+        my $fh=Apache::File->new($fn);
+        @conditions=<$fh>;
+       }  
+       $safeeval->permit("entereval");
+       $safeeval->permit(":base_math");
+       $safeeval->deny(":base_io");
+       $safeeval->share_from('Apache::lonnet',['&varval']);
+       map {
+	   my $line=$_;
+           chomp($line);
+	   my ($condition,$weight)=split(/\:/,$_);
+           $condition=~s/\&([\w\.]+)/\&varval\(\'$1\'\)/g;
+           if ($safeeval->reval($condition)) {
+	       if ($weight eq 'force') {
+		   $state.='3';
+               } else {
+                   $state.='2';
+               }
+           } else {
+               if ($weight eq 'stop') {
+		   $state.='0';
+               } else {
+                   $state.='1';
+               }
+           }
+       } @conditions;
+    }
+    &Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state);
+    return $state;
+}
+
 1;
 __END__