--- loncom/lonnet/perl/lonnet.pm	2003/09/02 13:07:51	1.408
+++ loncom/lonnet/perl/lonnet.pm	2003/09/09 18:46:28	1.409
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.408 2003/09/02 13:07:51 www Exp $
+# $Id: lonnet.pm,v 1.409 2003/09/09 18:46:28 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -3410,7 +3410,7 @@ sub EXT {
 # ----------------------------------------------------- Cascading lookup scheme
 	    if (!$symbparm) { $symbparm=&symbread(); }
 	    my $symbp=$symbparm;
-	    my $mapp=(split(/\_\_\_/,$symbp))[0];
+	    my $mapp=(&decode_symb($symbp))[0];
 
 	    my $symbparm=$symbp.'.'.$spacequalifierrest;
 	    my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
@@ -3489,7 +3489,7 @@ sub EXT {
 	my $filename;
 	if (!$symbparm) { $symbparm=&symbread(); }
 	if ($symbparm) {
-	    $filename=(split(/\_\_\_/,$symbparm))[2];
+	    $filename=(&decode_symb($symbparm))[2];
 	} else {
 	    $filename=$ENV{'request.filename'};
 	}
@@ -3764,7 +3764,7 @@ sub gettitle {
 	    delete($titlecache{$symb});
 	}
     }
-    my ($map,$resid,$url)=split(/\_\_\_/,$symb);
+    my ($map,$resid,$url)=&decode_symb($symb);
     my $title='';
     my %bighash;
     if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
@@ -3810,7 +3810,7 @@ sub symbverify {
 # direct jump to resource in page or to a sequence - will construct own symbs
     if ($thisfn=~/\.(page|sequence)$/) { return 1; }
 # check URL part
-    my ($map,$resid,$url)=split(/\_\_\_/,$symb);
+    my ($map,$resid,$url)=&decode_symb($symb);
     unless (&symbclean($url) eq &symbclean($thisfn)) { return 0; }
 
     $symb=&symbclean($symb);
@@ -3853,6 +3853,12 @@ sub symbclean {
     return $symb;
 }
 
+# ---------------------------------------------- Split symb to find map and url
+
+sub decode_symb {
+    return split(/\_\_\_/,shift);
+}
+
 # ------------------------------------------------------ Return symb list entry
 
 sub symbread {