--- trunk/lib/WebPAC/Input.pm	2005/12/31 16:50:11	339
+++ trunk/lib/WebPAC/Input.pm	2006/02/26 23:21:50	416
@@ -14,11 +14,11 @@
 
 =head1 VERSION
 
-Version 0.03
+Version 0.04
 
 =cut
 
-our $VERSION = '0.03';
+our $VERSION = '0.04';
 
 =head1 SYNOPSIS
 
@@ -47,9 +47,10 @@
     );
 
     $db->open('/path/to/database');
-    print "database size: ",$db->size,"\n";
-    while (my $rec = $db->fetch) {
-    }
+	print "database size: ",$db->size,"\n";
+	while (my $rec = $db->fetch) {
+		# do something with $rec
+	}
 
 
 
@@ -63,6 +64,7 @@
 	module => 'WebPAC::Input::MARC',
 	code_page => 'ISO-8859-2',
 	low_mem => 1,
+	recode => 'char pairs',
   );
 
 C<module> is low-level file format module. See L<WebPAC::Input::Isis> and
@@ -183,8 +185,37 @@
 	# create Text::Iconv object
 	$self->{iconv} = Text::Iconv->new($code_page,$self->{'code_page'});
 
+	my $filter_ref;
+
+	if ($self->{recode}) {
+		my @r = split(/\s/, $self->{recode});
+		if ($#r % 2 != 1) {
+			$log->logwarn("recode needs even number of elements (some number of valid pairs)");
+		} else {
+			my $recode;
+			while (@r) {
+				my $from = shift @r;
+				my $to = shift @r;
+				$recode->{$from} = $to;
+			}
+
+			my $regex = join '|' => keys %{ $recode };
+
+			$log->debug("using recode regex: $regex");
+			
+			$filter_ref = sub {
+				my $t = shift;
+				$t =~ s/($regex)/$recode->{$1}/g;
+				return $t;
+			};
+
+		}
+
+	}
+
 	my ($db, $size) = $self->{open_db}->( $self, 
 		path => $arg->{path},
+		filter => $filter_ref,
 	);
 
 	unless ($db) {