--- loncom/LONCAPA.pm	2006/06/27 21:47:15	1.11
+++ loncom/LONCAPA.pm	2006/10/13 19:11:05	1.13.2.1
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Base routines
 #
-# $Id: LONCAPA.pm,v 1.11 2006/06/27 21:47:15 albertel Exp $
+# $Id: LONCAPA.pm,v 1.13.2.1 2006/10/13 19:11:05 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -40,17 +40,9 @@ my $loncapa_max_wait_time = 13;
 
 require Exporter;
 our @ISA = qw (Exporter);
-our @EXPORT = qw(&escape_LaTeX &add_get_param &escape &unescape &tie_domain_hash &untie_domain_hash &tie_user_hash &untie_user_hash &propath);
+our @EXPORT = qw(&add_get_param &escape &unescape &tie_domain_hash &untie_domain_hash &tie_user_hash &untie_user_hash &propath);
 my %perlvar;
 
-# Escape a LaTeX string of special characters that according to LaTeX line by line
-# pg 9 are: # $ % & \ ^ _ { } ~  These are escaped by prepending a \
-#
-sub escape_LaTeX {
-    my ($string) = @_;
-    $string =~ s/[\#\$\%\&\\^_{}]/\\$&/g;
-    return $string;
-}
 
 
 # Inputs are a url, and a hash ref of
@@ -277,7 +269,8 @@ sub _do_hash_untie {
 	       return undef; 
 	   } 
 # If this is compressed, we will actually need an exclusive lock
-	   if (-e "$file_prefix.db.gz") {
+	   if (-e "$file_prefix.db.gz"
+	       || !-e "$file_prefix.db.old" ) {
 	       if (!&flock_sym(LOCK_EX)) {
 		   &clean_sym();
 		   return undef;
@@ -302,10 +295,39 @@ sub _do_hash_untie {
 	       system("gunzip $file_prefix.hist.gz");
 	   }
        }
+       if (!-e "$file_prefix.db.old") {
+           my $dump_db = '/home/httpd/perl/debug/dump_db_static_32';
+	   my $create_db = '/home/httpd/perl/debug/create_db_dynamic_64';
+           my $file = "$file_prefix.db";
+           &main::logthis("Converting $file");
+           if (!-x $dump_db) {
+	       &clean_symb();
+	       &main::logthis("$dump_db unexecutable");
+	       return;
+	   }
+           if (!-x $create_db) {
+	       &clean_symb();
+	       &main::logthis("$create_db unexecutable");
+	       return;
+	   }
+	   system("$dump_db -f $file|$create_db -f $file.new");
+	   if (!-e "$file.new") {
+	       &clean_symb();
+	       &main::logthis("conversion faile $file.new doesn't exist");
+	       return;
+	   }
+           rename($file,"$file.old");
+	   rename("$file.new","$file");
+       }
 # Change access mode to non-blocking
        $how=$how|&GDBM_NOLOCK();
 # Go ahead and tie the hash
-       return &_do_hash_tie($file_prefix,$namespace,$how,$loghead,$what);
+      	my $result = 
+	    &_do_hash_tie($file_prefix,$namespace,$how,$loghead,$what);
+	if (!$result) {
+	    &clean_sym();
+	}
+	return $result;
     }
 
     sub flock_sym {