--- trunk/lib/Biblio/Isis.pm	2006/07/07 21:11:01	50
+++ trunk/lib/Biblio/Isis.pm	2006/07/08 16:03:52	56
@@ -117,7 +117,7 @@
 
 =item debug
 
-Dump a B<lot> of debugging output.
+Dump a B<lot> of debugging output even at level 1. For even more increase level.
 
 =back
 
@@ -385,6 +385,24 @@
 	return $self->{'record'};
 }
 
+=head2 mfn
+
+Returns current MFN position
+
+  my $mfn = $isis->mfn;
+
+=cut
+
+# This function should be simple return $self->{current_mfn},
+# but if new is called with _hack_mfn it becomes setter.
+# It's useful in tests when setting $isis->{record} directly
+
+sub mfn {
+	my $self = shift;
+	return $self->{current_mfn};
+};
+
+
 =head2 to_ascii
 
 Returns ASCII output of record with specified MFN
@@ -473,12 +491,26 @@
 
 This method will also create additional field C<000> with MFN.
 
+There is also more elaborative way to call C<to_hash> like this:
+
+  my $hash = $isis->to_hash({
+  	mfn => 42,
+	include_empty_subfields => 1,
+  });
+
 =cut
 
 sub to_hash {
 	my $self = shift;
 
+
 	my $mfn = shift || confess "need mfn!";
+	my $arg;
+
+	if (ref($mfn) eq 'HASH') {
+		$arg = $mfn;
+		$mfn = $arg->{mfn} || confess "need mfn in arguments";
+	}
 
 	# init record to include MFN as field 000
 	my $rec = { '000' => [ $mfn ] };
@@ -504,8 +536,13 @@
 				foreach my $t (split(/\^/,$l)) {
 					next if (! $t);
 					my ($sf,$v) = (substr($t,0,1), substr($t,1));
-					warn "### $k^$sf:$v",$/ if ($self->{debug} > 1);
+					# FIXME make this option !
+					next unless ($v);
+#					warn "### $k^$sf:$v",$/ if ($self->{debug} > 1);
+
+					# FIXME array return optional, by default unroll to ' ; '
 					if (ref( $val->{$sf} ) eq 'ARRAY') {
+
 						push @{ $val->{$sf} }, $v;
 					} elsif (defined( $val->{$sf} )) {
 						# convert scalar field to array
@@ -631,6 +668,19 @@
 tested this against ouput of one C<isis.dll>-based application, but I don't
 know any details about it's version.
 
+=head1 VERSIONS
+
+You can find version dependencies documented here
+
+=over 8 
+
+=item 0.20
+
+Added C<< $isis->mfn >>, support for repeatable subfields and
+C<< $isis->to_hash({ mfn => 42, ... }) >> calling convention
+
+=back
+
 =head1 AUTHOR
 
 	Dobrica Pavlinusic