=item B<TypeInstance> I<Regex> I<Replacement>
+=item B<MetaData> I<String> I<Regex> I<Replacement>
+
+=item B<DeleteMetaData> I<String> I<Regex>
+
Match the appropriate field with the given regular expression I<Regex>. If the
regular expression matches, that part that matches is replaced with
I<Replacement>. If multiple places of the input buffer match a given regular