[mkgmap-dev] using wildcard for a tag

Is there someway to use a wildcard on the left side of a tag test? These both work: ref=*     { addlabel '${ref|part:;:1}'} ref:usfs=* { addlabel '${ref|part:;:1}'} But the first one doesn't find ref:usfs Is there a way to make it general, such as: ref*=*     { addlabel '${ref|part:;:1}'} That fails with an error