use XML::Twig;
use Equinox::Migration::SubfieldMapper 1.002;
+# FIXME
+#
+# sample functionality should be extracted into a new module which
+# uses E::M::SM to drive sampling of individual datafields, and
+# reports ALL datafields which occur
+#
+# --sample should give the list of all datafields
+# --samplefile should take a SM map as teh argument and introspect the mapped datafields
+
+
=head1 NAME
Equinox::Migration::MapDrivenMARCXMLProc
push @{$dataf->{multi}{$name}}, $sub->text;
}
} else {
+ die "Multiple occurances of a non-multi field: \n"
+ if (defined $dataf->{uni}{$code});
$dataf->{uni}{$code} = $sub->text;
}
}
+=head1 MODIFIERS
+
+MapDrivenMARCXMLProc implements the following modifiers, and passes
+them to L<Equinox::Migration::SubfieldMapper>, meaning that specifying
+any other modifiers in a MDMP map file will cause a fatal error when
+it is processed.
+
+=head2 multi
+
+If a mapping is declared to be C<multi>, then MDMP expects to see more
+than one instance of that subfield per datafield, and the data is
+handled accordingly (see L</PARSED RECORDS> below).
+
+Occurring zero or one time is legal for a C<multi> mapping.
+
+A mapping which is not flagged as C<multi>, but which occurs more than
+once per datafield will cause a fatal error.
+
+=head2 bib
+
+=head2 required
+
=head1 PARSED RECORDS
Given: