[OSM-dev] Osmosis to filter ways on exclusion keys?

[osm at na1400.info]

Osmosis currently supports inclusion filtering on ways and nodes based on keys and values (e.g. the --way-key-value option). For the OpenStreetMap routing service I would like to exclude ways and nodes that are irellevant to routing (I'm talking about Gosmore) such as the natural.*, landuse.* and boundary.* keys. I'm trying to accomplish this currently using the inclusion filters (wkv) but this has two main disadvantages:
- as long as the inclusion list isn't complete routing will be crippled.
- the list of key/values pairs is growing rapidly (way beyond all the highway key/value pairs).

In short: would it be possible add exclusion filters to Osmosis?