if io.open(love.filesystem.getSaveDirectory()..'/'..filename) then

      if numeric_prefix then
      if tonumber(numeric_prefix) > 0 then  -- skip 0000

      if numeric_prefix and tonumber(numeric_prefix) > 0 then  -- skip 0000

    if app.Frozen_definitions[definition_name] then
      app.send('ERROR definition '..definition_name..' is part of Freewheeling infrastructure and cannot be deleted.')
      return
    end

    app.send('{}')