--- loncom/LONCAPA.pm	2006/11/27 16:34:38	1.15
+++ loncom/LONCAPA.pm	2006/12/01 21:52:28	1.16
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Base routines
 #
-# $Id: LONCAPA.pm,v 1.15 2006/11/27 16:34:38 albertel Exp $
+# $Id: LONCAPA.pm,v 1.16 2006/12/01 21:52:28 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -41,6 +41,8 @@ my $loncapa_max_wait_time = 13;
 
 use vars qw($match_domain   $match_not_domain
 	    $match_username $match_not_username
+	    $match_courseid $match_not_courseid
+	    $match_name
 	    $match_handle   $match_not_handle);
 
 require Exporter;
@@ -50,9 +52,13 @@ our @EXPORT = qw(&add_get_param    &esca
 		 &untie_user_hash  &propath);
 our @EXPORT_OK = qw($match_domain   $match_not_domain
 		    $match_username $match_not_username
+		    $match_courseid $match_not_courseid
+		    $match_name
 		    $match_handle   $match_not_handle);
 our %EXPORT_TAGS = ( 'match' =>[qw($match_domain   $match_not_domain
 				   $match_username $match_not_username
+				   $match_courseid $match_not_courseid
+				   $match_name
 				   $match_handle   $match_not_handle)],);
 my %perlvar;
 
@@ -104,21 +110,37 @@ sub clean_domain {
     return $domain;
 }
 
-sub split_courseid {
-    my ($courseid) = @_;
-    my  ($domain,$coursenum) = 
-	($courseid=~m{^/($match_domain)/($match_username)});
-    return ($domain,$coursenum);
-}
-
-$match_username     = $LONCAPA::username_re     = qr{[\w\-.]+};
+$match_username     = $LONCAPA::username_re     = qr{[^a-zA-Z\_][\w\-.]+};
 $match_not_username = $LONCAPA::not_username_re = qr{[^\w\-.]+};
 sub clean_username {
     my ($username) = @_;
+    $username =~ s/^\d+//;
     $username =~ s/$match_not_username//g;
     return $username;
 }
 
+
+$match_courseid     = $LONCAPA::courseid_re     = qr{\d[\w\-.]+};
+$match_not_courseid = $LONCAPA::not_courseid_re = qr{[^\w\-.]+};
+sub is_courseid {
+    my ($courseid) = @_;
+    return ($courseid =~ m/^$match_courseid$/);
+}
+
+$match_name  = qr{$match_username|$match_courseid};
+sub clean_name {
+    my ($name) = @_;
+    $name =~ s/$match_not_username//g;
+    return $name;
+}
+
+sub split_courseid {
+    my ($courseid) = @_;
+    my  ($domain,$coursenum) = 
+	($courseid=~m{^/($match_domain)/($match_courseid)});
+    return ($domain,$coursenum);
+}
+
 $match_handle     = $LONCAPA::handle_re     = qr{[\w\-.]+};
 $match_not_handle = $LONCAPA::not_handle_re = qr{[^\w\-.]+};
 sub clean_handle {
@@ -132,7 +154,7 @@ sub clean_handle {
 sub propath {
     my ($udom,$uname)=@_;
     $udom = &clean_domain($udom);
-    $uname= &clean_username($uname);
+    $uname= &clean_name($uname);
     my $subdir=$uname.'__';
     $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
     my $proname="$perlvar{'lonUsersDir'}/$udom/$subdir/$uname";