# adhoc: skip &:macro in already-doubling part
return 0 if $e->{In} =~ m{^\&\:macro};
# adhoc: skip &${ ie eval in already-doubling part
# adhoc: skip &:macro in already-doubling part
return 0 if $e->{In} =~ m{^\&\:macro};
# adhoc: skip &${ ie eval in already-doubling part