class Geocoder::Lookup::Yahoo

def results(query, reverse = false)
  return [] unless doc = fetch_data(query, reverse)
  if doc = doc['ResultSet'] and doc['Error'] == 0
    return doc['Found'] > 0 ? doc['Results'] : []
  else
    warn "Yahoo Geocoding API error: #{doc['Error']} (#{doc['ErrorMessage']})."
    return []
  end
end